Search Results — 2000 specimen records retrieved (1323 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  SD12566  Abronia latifolia Edith Purer 1933-7-27 5381 San Mateo Two miles south of Pigeon Point Comment
  UC729677  Acaena pinnatifida var. californica Carl B. Wolf 1929-5-25 3732 San Mateo Pebble Beach s. of Pescadero; Pebble Beach Comment
  UC638681  Acaena pinnatifida var. californica Ethel Crum 1932-4-17 1386 San Mateo South Coast Range, San Gregorio 121 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
  POM63305  Acanthomintha obovata subsp. duttonii A. D. E. Elmer 1903-05 4538 San Mateo Crystal Springs Lake. Comment
  JROH163  Acer macrophyllum John Hunter Thomas 1989-5-11 24733 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road in grassy area above San Francisquito Creek and below dam 87 Comment
  CAS-BOT-BC336919  Acer negundo var. californicum C. F. Baker 1902-4-6 472 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC21584  Achillea millefolium Fred Hemphill 1973-5-6 760 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CHSC39257  Achillea millefolium Thomas B. Croat 1966-6-20 1997 San Mateo I mile N of Montara, sandy banks along Pacific. Comment
  JROH445  Achillea millefolium John H. Thomas 1976-5-26 18148 San Mateo Jasper Ridge Biological Preserve, Stanford University 154 Comment
  JROH448  Achillea millefolium John Hunter Thomas 1981-4-23 20489 San Mateo Jasper Ridge Biological Preserve, Stanford University 130 Comment
  CAS-BOT-BC21583  Achillea millefolium Elizabeth McClintock 1978-4-11 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC28765  Achillea millefolium Elizabeth McClintock; Paul Reeberg 1998-5-31 s.n. San Mateo San Bruno Mountains, in a hydroseeded area east of Carter Street Comment
  UCD128300  Achillea millefolium Leslie Fenster 1964-3-22 15 San Mateo near Crystal Spring Lake. 152 Comment
  CAS-BOT-BC29103  Achyrachaena mollis W. R. Dudley 1899-5-14 s.n. San Mateo Fields southwest of Baden Comment
  JROH2075  Acmispon glaber var. glaber John Hunter Thomas 1983-6-29 22703 San Mateo Jasper Ridge Biological Preserve, Stanford University; top of Rattlesnake Rock 112 Comment
  JROH2093  Acmispon wrangelianus John H. Thomas 1966-4-24 11578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2095  Acmispon wrangelianus John H. Thomas 1967-5-10 12848 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD37804  Acmispon wrangelianus Janet Turner 1933-4-18 3675 San Mateo Emerald Lake. Comment
  SJSU15953  Acmispon wrangelianus John Rawlings, Ken Hickman 2016-5-26 1830 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  CAS-BOT-BC391675  Actaea rubra W. R. Dudley 1904-4-23 s.n. San Mateo Santa Cruz Mountain Peninsula. By lower part Goat Ranch Creek Comment
  SEINET10573362  Actaea rubra Ernest A. McGregor McGregor s.n. San Mateo Santa Cruz Mountain Peninsula Comment
  RSA176544  Actaea rubra subsp. arguta John H. Thomas 1963-5-6 10062 San Mateo Summit of La Honda Road at Skyline Blvd. 610 Comment
  CAS-BOT-BC139955  Adenostoma fasciculatum John H. Thomas 1971-5-2 15864 San Mateo Near intersection of Canada and Edgewater {Edgewood] roads, about 4 miles SW of center of Redwood City 304 Comment
  CAS-BOT-BC384616  Adiantum aleuticum J. Lovelle 1973-7-29 s.n. San Mateo Pescadero Creek Comment
  RSA120509  Adiantum aleuticum S. S. Tillett, I. Sternback 1956-6-25 547 San Mateo Along Patterson Creek, on Middleton property just above entrance to Portola State beach. 366 Comment
  SEINET182852 Image available Adiantum emarginatum John P. Young 1925-1-10 San Mateo Burlingame Comment
  JROH90  Adiantum jordanii John H. Thomas 1976-4-2 18077 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC65673  Adiantum jordanii Elizabeth McClintock 1963-2-16 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC65674  Adiantum jordanii Walter Knight; Irja Knight 1965-4-25 1049 San Mateo in Owl's Canyon 182 Comment
  CAS-BOT-BC202682  Aesculus californica Margaret A. Barry 1937-6-24 184 San Mateo On Coal Mine Ridge Comment
  POM136951  Aesculus californica A. D. E. Elmer 1903-06 4258 San Mateo Crystal Springs Lake. Comment
  RSA131266  Aesculus californica Lucile Roush 1917-6-3 s.n. San Mateo Jasper Ridge, Santa Cruz Mountain Peninsula. Comment
  CAS-BOT-BC22979  Agoseris grandiflora var. grandiflora Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Crocker Hills Comment
  CAS-BOT-BC46175  Agoseris heterophylla Ned Cahill 1974-4-29 178 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH491  Agoseris heterophylla John H. Thomas 1971-4-10 15758 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM52211  Agoseris heterophylla C. F. Baker 1904-04 661 San Mateo Near Stanford University Comment
  POM51532  Agoseris hirsuta C. F. Baker 1901-10-20 s.n. San Mateo Summit of Coast Range Comment
  RSA18496  Agoseris hirsuta C. B. Wolf 1927-7-14 624 San Mateo 1 mile south of summit of Kings Mt on Skyline Drive. Comment
  SEINET10661050  Agropyron repens P. Rubtzoff 1977-6-21 Rubtzoff 9055 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Westernmost part of the area on slope across fence. Comment
  JROH4770  Agrostis avenacea John Hunter Thomas 1979-9-9 19727 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake 110 Comment
  POM226850  Agrostis avenacea Henry E. Wreser 1932-6-4 s.n. San Mateo Black Mountain Road. Hillsborough Hills. Near Burlingane. Comment
  POM207320  Agrostis densiflora E. B. Copeland 1903-8-13 3308 San Mateo Montara Point. Comment
  SJSU15843  Agrostis densiflora John Rawlings, Toni Corelli 2014-8-13 1205 San Mateo Coastal bluff just west of Hwy 1, north of Pomponio State Beach 36 Comment
  CAS-BOT-BC139462  Agrostis hallii Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain. Below parking lot. Comment
  CAS-BOT-BC138865  Agrostis microphylla Le Roy Abrams 1902-5-11 2458 San Mateo Crsystal Springs. Comment
  CAS-BOT-BC138976  Agrostis pallens A. D. E. Elmer 1903-6-1 4264 San Mateo Alpine School House. Comment
  CAS-BOT-BC138977  Agrostis pallens Henry E. Wieser 1922-6-4 s.n. San Mateo Black Mountain Road. Hillsborough Hills near Burlingame. Comment
  JROH4807  Agrostis stolonifera John Rawlings 2008-7-23 1046 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry creek bed of San Francisquito Creek about 200 yards downstream from the Low Flow Crossing. 95 Comment
  JROH4808  Agrostis stolonifera John Rawlings 2009-7-23 1047 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry creek bed of San Francisquito Creek about 100 yards upstream from the entrance path to the creek nearest the Dennis Martin site. 71 Comment
  JROH4156  Ailanthus altissima John H. Thomas 1980-11-18 20172 San Mateo Jasper Ridge Biological Preserve, Stanford University 98 Comment
  JROH4160  Ailanthus altissima John Hunter Thomas 1992-5-26 25353 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along SLAC corridor 82 Comment
  JEPS101120  Aira caryophyllea Dean W. Taylor 1988-3-16 9406 San Mateo San Bruno Mountain, summit of mountain, along fire road ca. 120 m east from summit parking lot , 371 Comment
  RSA145198  Aira caryophyllea John H. Thomas 1958-3-19 7050 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 30 Comment
  CAS-BOT-BC138232  Aira caryophyllea var. caryophyllea A. D. E. Elmer 1903-5-1 4705 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC138242  Aira caryophyllea var. caryophyllea John H. Thomas 1955-4-6 4845 San Mateo San Bruno Mountain just north of South San Francisco. 91 Comment
  RSA128834  Alisma triviale Roxana S. Ferris 1920-9-3 2045 San Mateo Second Mud Lake, Coal Mine Ridge, Santa Cruz Mtns. 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
  JROH5785  Allium amplectens John Rawlings 2016-4-26 1757 San Mateo Jasper Ridge Biological Preserve, Stanford University; rocky serpentine north side of ridge (Area C). Also found in the contact drainage just before entering oak woodland as it runs northwest after crossing Trail 9 192 Comment
  CAS-BOT-BC467295  Allium dichlamydeum J. Ed. McClellan; Bonnie McClellan 1968-6-1 s.n. San Mateo Ocean bluff at Pigeon Point Comment
  SEINET8534224 Image available Allium dichlamydeum A. A. Heller 1907-5-23 8564 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  JROH4550  Allium falcifolium John H. Thomas 1957-4-16 6662 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent slopes Comment
  RSA40253  Allium falcifolium L. S. Rose 1948-5-16 48111 San Mateo Emerald Lake, west of Redwood City. 152 Comment
  UC796644  Allium falcifolium Ira L. Wiggins 1949-4-23 12049 San Mateo w Redwood City (hills near Emerald Lakes); Emerald Lakes Comment
  POM196559  Allium lacunosum var. lacunosum H. L. Mason 1921-5-13 s.n. San Mateo Jasper Ridge near Sand Hill Caves Comment
  UCD138563  Allium neapolitanum H. Frederick 1972-4-1 s.n. San Mateo Bernal Ave., Burlingame. Comment
  CAS-BOT-BC132025  Allium peninsulare var. franciscanum Paul Arnaud 1941-4-19 s.n. San Mateo Redwood City - Hills - after Hesler farm entrance Comment
  CAS-BOT-BC132030  Allium peninsulare var. franciscanum L. R. A. 1902-5-4 2411 San Mateo Woodside Comment
  CDA33772  Allium triquetrum D. G. Kelch 2011-3-13 11 .046 San Mateo Pacifica. Along sea bluffs 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-BC44926  Ambrosia chamissonis W. R. Dudley 1908-10-4 s.n. San Mateo Laguna Salada Comment
  SD39996  Ambrosia chamissonis Edith A. Purer 1933-7-27 5376 San Mateo 2 miles south of Pigeon Point on open dune areas Comment
  UC579657  Ambrosia chamissonis N. K. Carlson 1935-7-5 120 San Mateo s of Pescadero; Santa Cruz Quadrangle, Bolsa Point 0 Comment
  RSA123305  Ambrosia chamissonis N. K. Carlson 1935-7-5 120 San Mateo [Unspecified] 0 Comment
  CAS-BOT-BC55528  Ambrosia psilostachya L. R. Abrams 1902-9-21 2992 San Mateo Crystal Lake Comment
  POM87791  Ambrosia psilostachya L. R. Abrams 1902-9-21 2992 San Mateo Crystal Lake between the Mts. Comment
  POM139628  Amelanchier pallida A. D. E. Elmer 1903-05 4659 San Mateo Slates Creek. Comment
  RSA18297  Amelanchier pallida Carl B. Wolf 1927-5-31 419 San Mateo Searsville Lake Comment
  RSA181301  Amelanchier pallida John H. Thomas 1965-5-15 10657 San Mateo Santa Clara County: Mt. Hamilton Range road banks 1 mile toward San Jose along the Hwy from Smith Creek. Comment
  JROH3597  Amelanchier utahensis Ruth Porter 1999-5-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; between lake and fire road E Comment
  CAS-BOT-BC136833  Amelanchier utahensis Elizabeth McClintock 1972-4-23 s.n. San Mateo Slope above Fern Rock Comment
  SEINET10517582  Ammophila arenaria Delzie Demaree 1933-7-27 Demaree 10441 San Mateo Sand dunes two miles south of Pigeon Point. Stabilizing moving dune areas. Comment
  CAS-BOT-BC214044  Amsinckia Mrs. E. C. Sutliffe 1933-5-17 s.n. San Mateo Skyline Blvd. near Alpine Creek Road Comment
  RSA0089684  Amsinckia intermedia John H. Thomas 1964-4-19 10324 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Near Searsville Lake. Comment
  NY380647  Amsinckia lunaris A. A. Heller 1907-5-23 8555 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  RSA0089730  Amsinckia lunaris W. R. Dudley 1894-4-27 s.n. San Mateo San Mateo Ravine. Santa Cruz Mountain Peninsula. Comment
  JROH1347  Amsinckia menziesii John Hunter Thomas 1981-4-21 20459 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1348  Amsinckia menziesii H. J. Dengler 1972-4-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; above east margin of Searsville Lake by trail Comment
  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
  JEPS127880  Anagallis arvensis Adam C. Schneider 2013-5-17 134 San Mateo Crystal Springs Reservoir Comment
  RSA18466  Anagallis arvensis Carl B. Wolf 1927-6-29 542 San Mateo South of Pebble Beach near Pescadero. Comment
  UC1125508  Anaphalis margaritacea G. E. Sindel 1935-7-22 294 San Mateo 1/4 mi s of Pescadero; Santa Cruz Quad. 30 Comment
  UC1125509  Anaphalis margaritacea G. E. Sindel 1935-7-30 315 San Mateo 3/4 mi n of Pomponio Creek; Santa Cruz Quad. 259 Comment
  CAS-BOT-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
  RSA246844  Angelica hendersonii R. F. Thorne, P. Everett 1965-8-1 35077 San Mateo 21.5 miles S of Golden Gate Bridge. 69 Comment
  UC614963  Anisocarpus madioides Beryl O. Schreiber 1932-5-29 300 San Mateo near San Mateo (Spring Valley Water Company Road) Comment
  HSC24049  Anisocarpus madioides Mary Katherine Wicksten 1971-6-16 36 San Mateo Bank at Huddart Park, by Werder Flat Comment
  CAS-BOT-BC102290  Anthemis cotula Saichi Kawahara 1968-7-29 458 San Mateo Old Stage Road, south bank of Pomponio Creek 36 Comment
  JROH509  Anthemis cotula John Hunter Thomas 1983-6-29 22698 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC280644  Anthoxanthum occidentale W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Mountain Peninsula. Moore's Place, Pescadero Creek Comment
  SEINET7614645 Image available Anthoxanthum occidentale C. F. Baker 1902-1 247 San Mateo W side King's Mountain Comment
  JROH200  Anthriscus caucalis John H. Thomas 1975-4-30 17843 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH195  Anthriscus caucalis Richard L. Garber 1971-5-11 9 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH198  Anthriscus caucalis John H. Thomas 1974-5-3 17242 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC555316  Aphanes occidentalis Herbert L. Mason 1927-4-23 3688 San Mateo Summit of road between La Honda and Pescadero Creek Comment
  CAS-BOT-BC261659  Aphanes occidentalis Peter Rubtzoff 1988-5-3 9917 San Mateo San Bruno Mountain, Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road in the northwest part of the Saddle area, near its crossing of the upper part of East Fork Colma Creek. Comment
  CAS-BOT-BC454490  Aphanes occidentalis Margaret A. Barry 1937-5-8 68 San Mateo Exposed Slopes of Coal Mine Ridge Comment
  CAS-BOT-BC405851  Aquilegia formosa Alice Eastwood 1912-6-10 340 San Mateo Crystal springs Comment
  CAS-BOT-BC17317  Arabis blepharophylla Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountains. Cable Ravine. Comment
  CAS-BOT-BC17335  Arabis blepharophylla Reed Clark Rollins 1941-3-22 2950 San Mateo San Bruno Hills, 2 miles southeast of Daly City. Comment
  CAS-BOT-BC17340  Arabis blepharophylla Roxana S. Ferris 1920-3-8 1763 San Mateo Montara Mountains in vicinity of South Peak. 518 Comment
  HSC6552  Arabis blepharophylla Lincoln Constance, Rimo Bacigalupi, C. R. Bell 1951-3-25 3369 San Mateo SE side of Colma Canyon 61 Comment
  JEPS83068  Arabis blepharophylla Roy E. Buck, Randall A. Morgan, and James A. West 1983-7-15 435 San Mateo 3.2 km nw Pilarcitos Dam (and 2.4 km wsw of San Andres Dam, along crest of Fifield Ridge, w of gravel rd, San Francisco Watershed Reserve); Fifield Ridge, San Francisco Watershed Reserve 388 Comment
  UC311117  Arabis blepharophylla A. D. E. Elmer Apr 1903 4936 San Mateo San Bruno Hills Comment
  UC75343  Arabis blepharophylla C. F. Baker 1903-4-6 1881 San Mateo San Bruno Hills Comment
  SEINET10454399  Aralia californica Mary Susan Taylor 1978-8-30 Taylor 1853 San Mateo Comment
  CAS-BOT-BC128674  Arbutus menziesii Ned Cahill 1974-4-30 233 San Mateo Chaparral near the intersection of Canada and Edgewood Roads, about 3 mi. westward from Redwood City. Comment
  SEINET11989295  Arctostaphylos S. W. Edwards 1982-1 s.n. San Mateo Foothill Park Comment
  CAS-BOT-BC24130  Arctostaphylos andersonii Brandegee 1889-4-1 s.n. San Mateo Redwood City Comment
  CAS-BOT-BC24200  Arctostaphylos andersonii W. R. Dudley 1906-5-8 s.n. San Mateo Near Crystal Springs Lake, Santa Cruz mts. Comment
  POM367227  Arctostaphylos andersonii L. S. Rose 1947-3-11 47028 San Mateo Kings Mountain. 609 Comment
  SD38430  Arctostaphylos andersonii Edith A. Purer 1933-5-23 3602 San Mateo Skyline Drive. Comment
  SEINET11987183  Arctostaphylos andersonii var. imbricata W. Knight, Knight, I. 1981-1 3931 San Mateo Tilden Botanic Garden, Berkeley, originally from San Bruno Mt Comment
  SEINET11989088  Arctostaphylos andersonii var. imbricata W. Knight, Knight, I.; McClintock, E. 1981-1 4493 San Mateo Kamchatka Point, San Bruno Mt 320 Comment
  CAS-BOT-BC23502  Arctostaphylos crustacea A. D. E. Elmer 1903-5-1 4558 San Mateo King's Mountain Comment
  CAS-BOT-BC23516  Arctostaphylos crustacea John Thomas Howell 1924-2-23 259 San Mateo King Mt. Comment
  CAS-BOT-BC23546  Arctostaphylos crustacea L. S. Rose 1942-3-30 42007 San Mateo Rocky brushy hills, Kings Mountain Comment
  CDA29071  Arctostaphylos crustacea D. G. Kelch 2009-6-9 9 .399 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  JROH1931  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1970-7-5 15665 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1942  Arctostaphylos crustacea subsp. crustacea John Hunter Thomas 1983-7-20 22893 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11987278  Arctostaphylos glandulosa W. Knight, Knight, I.; McClintock, E.; Sigg, J. 1981-1 4038 San Mateo Strybing Arboretum in San Francisco, originally from Buckeye Canyon, San Bruno Mountain Comment
  JEPS91231  Arctostaphylos imbricata Dean W. Taylor 1988-4-29 9584 San Mateo San Bruno Mountain, northern slope of mountain 0.3 miles N22d W of summit, 371 Comment
  OBI14662  Arctostaphylos imbricata Lewis S. Rose 1961-3-2 61014 San Mateo San Bruno HIlls 366 Comment
  CAS-BOT-BC27159  Arctostaphylos montaraensis W. Knight; Irja Knight 1967-1-19 2056 San Mateo Montara Mt. 335 Comment
  CAS-BOT-BC40169  Arctostaphylos montaraensis Walter Knight; Irja Knight; James B. Roof; Gregory Whipple; Albert Seneres 1969-9-22 2791 San Mateo .9 from Pilarcitos Dam enroute to Montara Mtt. on San Francisco Water Dept. property. 274 Comment
  UC21802  Arctostaphylos montaraensis J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  CAS-BOT-BC44706  Arctostaphylos regismontana Lewis S. Rose 1955-2-21 55001 San Mateo Kings Mountain 609 Comment
  CAS-BOT-BC44742  Arctostaphylos regismontana J. H. Thomas 1949-3-29 2000 San Mateo Kings Mt. Rd. Comment
  CAS-BOT-BC44750  Arctostaphylos regismontana Eric Walther 1919-8-1 s.n. San Mateo Woodside Comment
  POM132205  Arctostaphylos regismontana A. D. E. Elmer 1903-03 4537 San Mateo Kings Mountain. Comment
  RSA0089798  Arctostaphylos regismontana Dean Wm. Taylor 2016-3-30 21632 San Mateo Kings Mountain Road; under PG&E transmission powerlines just north of the road along the entrance road to the Archery Range. 557 Comment
  RSA141485  Arctostaphylos regismontana B. O. Schreiber 1938-10-16 2564 San Mateo On Kings Mountain. 609 Comment
  UC1120831  Arctostaphylos regismontana A. E. Wieslander and B. O. Schreiber 1940-3-5 4 San Mateo road from Woodside to King's Mt.; Santa Cruz Quadrangle 304 Comment
  UC1120843  Arctostaphylos regismontana G. E. Sindel 1935-10-16 380 San Mateo 1 1/8 mi wnw Sierra Moreno; Santa Cruz Quadrangle Comment
  UC1120845  Arctostaphylos regismontana C. M. Belshaw 1935-1-25 1467 San Mateo KIngs Mt. Rd. 6 mi w Woodside; Santa Cruz Quadrangle Comment
  UC1120846  Arctostaphylos regismontana C. M. Belshaw 1935-1-25 1466 San Mateo Kings Mt. Rd 4.7 mi w Woodside; Santa Cruz Quadrangle 609 Comment
  UC1424961  Arctostaphylos regismontana Gary D. Wallace 1974-12-28 1375 San Mateo along Skyline Blvd. s Upper Crystal Springs Res. (2.8 mi n of jct. of King Mtn. Rd. opposite Farwell's Rhododendron Nursery); Northern Santa Cruz Mtns. 640 Comment
  UC876530  Arctostaphylos regismontana Lewis S. Rose 1939-2-26 39015 San Mateo Kings Mountain Kings Mountain (type locality) 670 Comment
  CAS-BOT-BC44668  Arctostaphylos sensitiva Roxana S. Ferris 1920-5-25 1959 San Mateo At end of Butano Ridge. Santa Cruz Mountain Peninsula 304 Comment
  RSA128497  Arctostaphylos tomentosa subsp. crustacea Josephine Randall 1908-3-28 s.n. San Mateo Kings Mt. Comment
  RSA155444  Arctostaphylos tomentosa subsp. crustacea L. S. Rose 1961-2-16 61002 San Mateo Hills w. of Belmont. 183 Comment
  RSA81913  Arctostaphylos tomentosa subsp. crustacea E. K. Balls, Percy C. Everett, B. K. Balls 1953-10-16 18680 San Mateo Hwy 5, 30.8 mi. s.e. of San Francisco - San Mateo Co. line. 762 Comment
  CAS-BOT-BC46825  Arctostaphylos uva-ursi Arthur L. Menzies 1963-3-10 s.n. San Mateo San Bruno Hills Comment
  SEINET11988288  Arctostaphylos uva-ursi Unknown 1959-1 328 San Mateo near ridge of San Bruno Mountain, South San Francisco, 0.25 mi E of KRON TV transmitter Comment
  SEINET11989204  Arctostaphylos uva-ursi W. Knight, Knight, I.; McClintock, E. 1982-1 4639 San Mateo NE of parking loc, San Bruno Mountain 335 Comment
  POM367521  Arctostaphylos uva-ursi var. coactilis Gary D. Wallace 1975-11-29 1516 San Mateo San Bruno Mtn., e. of parking lot at top of Radio Rd. 396 Comment
  SEINET11987228  Arctostaphylos uva-ursi var. coactilis W. Knight, Knight, I. 1981-1 3891 San Mateo Tilden Botanic Garden, Berkeley, orig. from San Bruno Mountain Comment
  CDA37698  Arctotheca calendula Breckenridge/Filippini 2006-5-8 s.n. San Mateo Pescadero; Bean Hollow Rd. 0 Comment
  CAS-BOT-BC400411  Aristolochia californica Elizabeth McClintock; Philip Wheeler 1967-5-14 s.n. San Mateo San Bruno Mountain. Along the fence separating Brisbane from the Crocker Estate Company property above the southern ravine of Buckeye Canyon Comment
  UCD98491  Armeria maritima subsp. californica Kathyrn L. Koch 1965-5-1 48 San Mateo Arroyo de los Frijoles Beach State Park, just south of State Highway 1 junction. Comment
  UCSB11750  Armeria maritima subsp. californica Olson, Jim 1962-4-13 San Mateo 1 mile south of Halfmoon Bay on U.S. Highway 101 15 Comment
  CHSC1225  Armeria maritima var. californica J. Baynes 1929-5-23 San Mateo Half Moon Bay. Comment
  CAS-BOT-BC84879  Artemisia californica Fred Hemphill 1973-4-15 651 San Mateo San Carlos - chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC84881  Artemisia californica James McMurphy 1905-10-1 s.n. San Mateo Corte de Madera Creek Comment
  RSA51355  Artemisia californica L. S. Rose 1949-9-11 49179 San Mateo Montara Point. Comment
  JROH519  Artemisia douglasiana John Hunter Thomas 1981-9-24 20744 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET259096  Artemisia douglasiana Gordon H. True Jr. 1937-7-23 803 San Mateo San Mateo County: Along Salada Beach-Skyline Blvd. 61 Comment
  POM204313  Artemisia pycnocephala I. L. Wiggins 1929-7-4 3800 San Mateo Pescadero Beach Comment
  JROH433  Asclepias fascicularis John H. Thomas 1974-8-11 17508 A 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
  POM54249  Aster radulinus A. D. E. Elmer 1903-07 4973 San Mateo Portola Comment
  CAS-BOT-BC186758  Astragalus gambelianus Lois E. James 1946-4-16 1740 San Mateo Back of Redwood City, High Road off Woodside Road Comment
  CAS-BOT-BC186762  Astragalus gambelianus John H. Thomas 1971-5-2 15822 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  JROH1984  Astragalus gambelianus A. C. Kimber & Lucile Roush 1918-4-25 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC186750  Astragalus gambelianus Marck Menke 1998-4-24 Menke 3 San Mateo On a slope immediately west of the ravine west of Juncus Ravine on the south slope of San Bruno Mt. Ridge, about the Terrabay development 121 Comment
  CAS-BOT-BC186757  Astragalus gambelianus Lois E. James 1947-4-11 1757 San Mateo Hills back of Redwood City Comment
  CAS-BOT-BC177969  Astragalus nuttallii var. virgatus W. R. Dudley 1896-4-17 s.n. San Mateo Pasture near Pebble Beach, Pescadero - Santa Cruz Peninsula Comment
  CAS-BOT-BC194429  Astragalus nuttallii var. virgatus Copeland 1905-6-3 3299 San Mateo Montara Pt. Comment
  CAS-BOT-BC177971  Astragalus nuttallii var. virgatus A. A. Heller 1906-6-8 8385 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks in soil. Comment
  CAS-BOT-BC194431  Astragalus nuttallii var. virgatus Phillip C. Wheeler 1965-8-16 s.n. San Mateo The great Meadow adjacent to Radio Road, San Bruno Mountain Comment
  CAS-BOT-BC193094  Astragalus pycnostachyus var. pycnostachyus J. H. Thomas 1958-8-1 7372 San Mateo Just north of mouth of San Gregorio Creek 30 Comment
  CDA26740  Astragalus pycnostachyus var. pycnostachyus T. C. Fuller 1967-8-23 16295 San Mateo West of coast highway (Highway 1), 1 mile northwest of Pescadero. 0 Comment
  CAS-BOT-BC68676  Athyrium filix-femina var. californicum Elizabeth McClintock 1967-9-24 s.n. San Mateo San Bruno Mountain - Crocker Avenue Comment
  POM143746  Athysanus pusillus C. F. Baker 1902-4-6 456 San Mateo Crystal Springs Lake. Comment
  JEPS118232  Atriplex prostrata Dean W. Taylor with Alison Colwell 2005-9-26 19492 San Mateo 1 mile south along the coast from Franklin Point, Ano Nuevo State Reserve 0 Comment
  JROH1806  Atriplex prostrata John Hunter Thomas 1979-9-9 19729 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of Searsville Lake Comment
  RSA26768  Atriplex subspicata I. L. Wiggins 1929-8-24 3873 San Mateo Moss Beach. Comment
  JROH4840  Avena barbata John H. Thomas 1967-5-12 12870 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD110280  Avena barbata T. C. Fuller 1971-6-10 19879 San Mateo 1.6 km east of San Gregorio Comment
  JROH5  Azolla filiculoides S. F. Blake 1927-6-24 9944 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  CAS-BOT-BC68375  Azolla filiculoides George Oberlander 1951-3-30 1174 San Mateo San Francisco Watershed Reserve, San Mateo Creek Comment
  POM89832  Azolla filiculoides F. T. Bioletti 1893-6-15 s.n. San Mateo Baden Comment
  UC42329  Azolla filiculoides F. T. Bioletti 1893-6-15 San Mateo Boden Comment
  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
  CAS-BOT-BC98694  Baccharis douglasii David D. Keck 1931-9-27 1271 San Mateo Dumbarton Bridge Comment
  SEINET3386136 Image available Baccharis douglasii David D. Keck 1931-9-27 1271 San Mateo Dumbarton Bridge. Comment
  UCR256527  Baccharis glutinosa Peter Rubtzoff 1976-10-5 8908 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  CAS-BOT-BC99516  Baccharis pilularis W. R. Dudley 1894-12-13 s.n. San Mateo Above Preston's, La Honda Road Comment
  CAS-BOT-BC99529  Baccharis pilularis Carl B. Wolf 1930-11-5 1807 San Mateo 4 mi. so. of Pescadero 7 Comment
  SEINET11861776  Baccharis pilularis Unknown 1933-8-4 10464 San Mateo along Bayshore Highway Comment
  JROH550  Baccharis pilularis subsp. consanguinea Richard L. Garber 1971-7-13 62 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA203030  Baccharis pilularis subsp. pilularis C. B. Wolf; 1934-11-9 6240 San Mateo 200 yds. S of Pigeon Point Lighthouse 15 Comment
  CAS-BOT-BC16622  Barbarea orthoceras Fred Hemphill 1973-3-1 703 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC16636  Barbarea orthoceras Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point. Comment
  CAS-BOT-BC166953  Barbarea orthoceras Peter Rubtzoff 1975-5-21 7961 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH1443  Barbarea orthoceras John H. Thomas 1973-6-15 16843 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1445  Barbarea orthoceras John Hunter Thomas 1980-5-6 19933 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD165020  Barbarea orthoceras Peter Rubtzoff 1975-5-21 7961 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UCR279901  Barbarea orthoceras var. dolichocarpa Peter Rubtzoff 1975-5-21 7962 San Mateo Central Coast, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction 220 Comment
  UCD97579  Bassia hyssopifolia Malcolm A. Nobs; S. Galen Smith 1949-8-27 1617 San Mateo E of Redwood City. Comment
  JROH3931  Bellardia trixago Toni Corelli 2004-4-22 272 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 9 between trail c and trail 10 on both sides of trail 190 Comment
  UCR101678  Bellardia trixago George K. Helmkamp, E. A. Helmkamp 1998-5-16 3737 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  CAS-BOT-BC75791  Berberis pinnata W. R. Dudley 1899-4-18 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Creek. Comment
  CAS-BOT-BC75864  Berberis pinnata Walter Knight; Walter Knight 1963-6-24 982 San Mateo San Bruno Mountains. Quarry 4. Comment
  UC306615  Berberis pinnata A. D. E. Elmer April, 1903 4820 San Mateo San Bruno Hills Comment
  UC311186  Blennosperma nanum var. nanum A. D. E. Elmer 1903-4-1 4521 San Mateo San Bruno Hills Comment
  RSA465634  Boisduvalia stricta E. S. Spalding 1923-8-3 s.n. San Mateo Pulgas Tunnel, east side. Comment
  JROH4422  Bolboschoenus maritimus subsp. paludosus Toni Corelli 2009-8-12 296 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake, dry lake bed in mud. 103 Comment
  CAS-BOT-BC280862  Bolboschoenus maritimus subsp. paludosus Elizabeth McClintock; Paul Reeberg 1989-5-2 s.n. San Mateo San Bruno Mountains. PG&E Marsh 4 Comment
  SEINET8728895 Image available Bougainvillea spectabilis A. T. Whittemore 2001-1 01 -022 San Mateo 418 Hillway Dr., Redwood City. 98 Comment
  CAS-BOT-BC417699  Boykinia occidentalis H. L. Mason 1921-7-17 s.n. San Mateo Pescadero Creek on Pescadero-La Honda Road Comment
  CAS-BOT-BC145403  Brachypodium distachyon Bonnie McClellan; J. Ed. McClellan 1971-5-31 s.n. San Mateo Butano State Park. Comment
  JROH4858  Brachypodium distachyon John Hunter Thomas 1989-5-9 24725 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4861  Brachypodium distachyon John Hunter Thomas 1990-5-17 24859 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET14395443  Brachypodium sylvaticum J. Beall 2003-12-4 San Mateo Santa Cruz Mountains, Woodside on Hwy 84 at Grandview Dr., about 1 mile from Skyline Road summit. 427 Comment
  UC1719607  Brachypodium sylvaticum K. Melo 2003-12-1 PDR 1387519 San Mateo Hwy 84 at Grandview Terrace and Schilling Lake. Martin Creek drainage Comment
  UCD56896  Brachypodium sylvaticum K. Melo 2003-12-1 PDR 138751 9 San Mateo San Francisco Peninsula. Hwy. 84 at Grandview Terrace and Schilling Lake. Martin Creek drainage. Comment
  CDA37735  Brachypodium sylvaticum Breckenridge/Filippini 2010-7-22 s.n. San Mateo Woodside; across a number of properties. 0 Comment
  JEPS26851  Brassica nigra Rimo Bacigalupi with J. H. Thomas and L. R. Heckard 1961-5-23 7714 San Mateo along Alpine Road near site of abandoned Alpine School Alpine School; Alpine Road 487 Comment
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Mar 12 2009
  JROH5554  Brassica nigra John Rawlings 2013-5-28 1156 San Mateo Jasper Ridge Biological Preserve, Stanford University; a few yards north of Rd F, 75 meters west of Escobar gate (just east of serpentine contact). 161 Comment
  JROH1462  Brassica rapa John H. Thomas 1972-4-1 16046 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC36795  Brassica rapa Catherine A. Toschi 1963-2-23 63 :30 San Mateo North slope San Bruno Mountains above Crocker Avenue. 137 Comment
  JROH4871  Briza maxima John Hunter Thomas 1987-5-15 24284 San Mateo Jasper Ridge Biological Preserve, Stanford University. Old picnic area above low flow crossing Comment
  CAS-BOT-BC145332  Briza minor John H. Thomas 1950-4-27 1692 A San Mateo King's Mountain Road. Comment
  CAS-BOT-BC145342  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos. Comment
  CDA1781  Briza minor A. A. Beetle 1941-4-2 1738 San Mateo Near San Carlos Comment
  JROH4891  Briza minor John Hunter Thomas 1991-4-13 24990 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC144492  Briza minor Copeland 1903-5-24 3257 San Mateo above Crystal Springs Lake Comment
  UCR122969  Briza minor George K. Helmkamp, E. A. Helmkamp 2001-6-2 6791 San Mateo Central Coast, Purissima Creek Rd., 0.9 mi from Calif. Hwy 1(junction about 4 mi south of Half Moon Bay) 91 Comment
  UCR143328  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos 30 Comment
  JROH5753  Briza minor M. Day 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Whiskey Hill Gate Comment
  SEINET10868322  Briza minor Alan A. Beetle 1941-4-20 Beetle 1738 San Mateo Near San Carlos, rich heavy loam, in open field. Comment
  SEINET182863  Brodiaea capitata John Campbell 1925-3-27 San Mateo Burlingame Comment
  CAS-BOT-BC484344  Brodiaea elegans subsp. elegans Cherie Wetzel 1969-6-20 867 San Mateo Canada College, Redrood City, just off of Farm Hill Blvd. Comment
  JROH4580  Brodiaea elegans subsp. elegans Richard L. Garber 1971-5-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC483179  Brodiaea terrestris subsp. terrestris W. R. Dudley 1894-4-21 s.n. San Mateo Near dam, San Mateo, Santa Cruz Peninsula Comment
  CAS-BOT-BC483186  Brodiaea terrestris subsp. terrestris Philip C. Wheeler 1965-6-19 s.n. San Mateo Fire trail west of quarry, San Bruno Mountain Comment
  CAS-BOT-BC483187  Brodiaea terrestris subsp. terrestris Elizabeth McClintock; Philip C. Wheeler 1967-6-11 s.n. San Mateo Radio Road, San Bruno Mountain Comment
  POM196558  Brodiaea terrestris subsp. terrestris C. Dudley 1909-4-27 s.n. San Mateo Santa Cruz Mountain Peninsula. Comment
  RSA212158  Brodiaea terrestris subsp. terrestris L. S. Rose 1970-4-8 70024 San Mateo Black Mtn, W of San Mateo. 122 Comment
  CAS-BOT-BC144143  Bromus Ned Cahill 1974-4-29 189 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  CAS-BOT-BC148988  Bromus carinatus var. carinatus Margaret A. Barry 1937-5-15 99 San Mateo Coal Mine RIdge. Comment
  CAS-BOT-BC148995  Bromus carinatus var. carinatus Le Roy Abrams 1915-6-14 5558 San Mateo Kings Mountain. At first bridge. Comment
  CAS-BOT-BC149011  Bromus carinatus var. carinatus W. R. Dudley 1901-5-11 s.n. San Mateo Santa Cruz Mountain Peninsula. Between Colma and Lake Merced. Comment
  UC1037111  Bromus carinatus var. carinatus Leo Whitney 1935-3-20 2268 San Mateo Bayshore Highway 10 mi s of Cliff House; San Francisco, Bayshore Highway Comment
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Nov 12 2011
  UC153152  Bromus carinatus var. carinatus E. B. Copeland 1903-6-10 3303 San Mateo Montara Point; Pacific Coast, Montara Point Comment
  UC766920  Bromus carinatus var. carinatus R. F. Hoover 1940-9-1 4549 San Mateo La Honda Summit Comment
  SJSU15316  Bromus commutatus John Rawlings 2014-5-28 1242 San Mateo In the vicinity of the Edgewood Preserve's West Kiosk (intersection of Edgewood and Serpentine Loop trails). 184 Comment
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Feb 18 2015
  CAS-BOT-BC155725  Bromus diandrus John H. Thomas 1963-5-20 10136 San Mateo Ano Nuevo Island, about 0.5 mile off shorea nd about 20 miles northwest of Santa Cruz. Comment
  JROH4909  Bromus diandrus John H. Thomas 1967-4-20 12704 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA254230  Bromus diandrus Robert A. Norris 1975-3-31 2286 San Mateo Near Crocker Avenue, San Bruno Mountains. Comment
  RSA475252  Bromus diandrus Lyman Benson 1935-5-5 6520 San Mateo Lake Searsville; Santa Cruz Mt. Range. S. F. Bay watershed 152 Comment
  SEINET3892511  Bromus diandrus R. L. Johnson 2012-4-6 12 -003 San Mateo Half Moon Bay, roadside on Redondo Beach Rd.; 0 25 Comment
  JROH4914  Bromus hordeaceus John H. Thomas 1958-5-10 7151 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA790273  Bromus hordeaceus subsp. hordeaceus Peter Rubtzoff 1976-6-13 8634 San Mateo San Bruno Mtn: 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH4943  Bromus madritensis subsp. madritensis John Hunter Thomas 1980-5-1 19913 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4945  Bromus madritensis subsp. madritensis John Rawlings 2013-4-14 1150 B San Mateo Jasper Ridge Biological Preserve, Stanford University; uphill from Trail 14 about 25 yards from the Rd E intersection 112 Comment
  JROH5604  Bromus madritensis subsp. madritensis John Rawlings 2013-4-2 1148 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 11 ten meters west of the upper footbridge 129 Comment
  RSA18330  Bromus maritimus C. B. Wolf 1929-5-10 3705 San Mateo coast at Pigeon Pt. So. of Pescadero Comment
  SJSU15908  Bromus maritimus John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1733 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  CAS-BOT-BC161752  Bromus rubens R. E. Frenkel 1964-5-26 511 San Mateo On Portola Ridge Road, SFWD, 0.7 mile north of Sawyer Ridge Road. 320 Comment
  SEINET3923291  Bromus rubens Robert A. Norris 1984-3-21 4655 San Mateo Blue Blossom Hill, San Bruno Mts.; 0 366 Comment
  SEINET10954096  Bromus rubens Robert A. Norris 1977-5-2 Norris 3568 San Mateo Locally abundant in disturbed soil on gravelly bank by Interstate Hwy. 280, just S of Farmhill Blvd. Exit, Woodside, San Mateo Co., California. Comment
  JROH4962  Bromus sterilis John Rawlings 2013-4-9 1149 San Mateo Jasper Ridge Biological Preserve, Stanford University. Verge of Rd L near Ranger Bath. 107 Comment
  SEINET3921935  Bromus willdenowii Robert A. Norris 1984-5-9 4730 San Mateo By Olivet Memorial Park Throughway, Colma.; 0 Comment
  RSA185791  Buddleja davidii John H. Thomas 1966-9-11 12390 San Mateo 1 mile Westward as measured along the road from la Honda Pescadero Rd intersection, Redwood douglas fir forest, 37Y 19N, 122Y 17 W Comment
  POM144330  Cakile edentula Copeland 1903-6-5 3319 San Mateo Montara Point. Comment
  UC765079  Cakile edentula R. F. Hoover 1941-2-12 4755 San Mateo Half Moon Bay Comment
  CAS-BOT-BC36866  Cakile edentula var. edentula Reed Clark Rollins 1941-7-19 2961 San Mateo Half Moon Bay, along the beach. Comment
  UCSC007725  Cakile maritima Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC36946  Cakile maritima var. maritima Walter Knight; Irja Knight; Elizabeth McClintock 1964-9-11 s.n. San Mateo San Bruno Mountains. Point San Bruno. Comment
  CAS-BOT-BC36953  Cakile maritima var. maritima Betty J. Hammerly 1942-6-15 439 San Mateo Ocean bluffs near mouth of Pescadero Creek. 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
  RSA98363  Cakile maritima var. maritima I. L. Wiggins 1949-7-2 12196 San Mateo Pescadero Beach. Comment
  JROH4972  Calamagrostis koelerioides John H. Thomas 1962-7-15 9913 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oak woodland near northern end of ridge Comment
  POM199093  Calamagrostis nutkaensis A. D. E. Elmer 1903-05 5051 San Mateo San Pedro Comment
  POM199095  Calamagrostis nutkaensis A. D. E. Elmer 1903-05 5040 San Mateo San Pedro Comment
  JROH3327  Calandrinia ciliata John H. Thomas 1977-4-8 18516 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1634  Callitriche marginata John H. Thomas 1968-3-31 14259 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD123519  Callitriche trochlearis W. R. Dudley 1904-4-23 s.n. San Mateo Santa Cruz Mountain Peninsula; Crow foot pond on Alpine Road, opposite the Fitzpatrick Place. Comment
  RSA137260  Callitriche verna A. D. E. Elmer 1903-06 4279 San Mateo Lake San Andreas. Comment
  JROH4596  Calochortus albus John H. Thomas 1963-5-12 10085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4600  Calochortus albus John H. Thomas 1972-5-5 16083 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4611  Calochortus albus John Hunter Thomas 1985-4-25 23560 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA10360  Calochortus albus H. A. Barker 1926-5-1 592 San Mateo Kings Mt. Comment
  SD655  Calochortus albus Ulysses S. Grant IV Jun 1925 San Mateo Near La Honda. Comment
  CAS-BOT-BC492204  Calochortus albus Josephine D. Randall 1907-6-8 219 San Mateo Redwood Grove in Portola Valley Comment
  CAS-BOT-BC492212  Calochortus albus Ned Cahill 1974-5-13 270 San Mateo Chaparral near the intersection of Canda and Edgewood rods, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC492225  Calochortus albus A. D. E. Elmer 1903-5-1 4846 San Mateo San Mateo Comment
  RSA14949  Calochortus albus Lewis S. Rose 1935-6-11 35214 San Mateo 9 mi W of Stanford University. Comment
  POM258692  Calochortus luteus Marion Ownbey, Ruth P. Ownbey 1938-7-7 1699 San Mateo Santa Cruz Mountains, above Searsville Lake Comment
  SD27832  Calochortus maweanus Carl B. Wolf 1929-5-22 3722 San Mateo Santa Cruz Mountains, near base of La Honda Grade. 182 Comment
  CAS-BOT-BC496829  Calochortus tolmiei J. H. Thomas 1949-5-7 505 San Mateo King's Mountain Road Comment
  HSC23996  Calochortus tolmiei Mary Katherine Wicksten 1971-6-22 86 San Mateo Huddart Park, by rd. to family campground Comment
  POM161183  Calochortus tolmiei Rimo C. Bacigalupi 1922-5-15 s.n. San Mateo New La Honda Grade Comment
  CAS-BOT-BC389706  Calochortus venustus L. Sigal 1969-7-1 s.n. San Mateo Skyline Boulevard Comment
  CAS-BOT-BC494043  Calochortus venustus L. R. Abrams 1915-6-7 5242 San Mateo Woodside to Crystal Springs road, near whipple Road Comment
  JROH555  Calycadenia multiglandulosa James I. McMurphy 1909-6-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH558  Calycadenia multiglandulosa John H. Thomas 1958-11-22 8077 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH560  Calycadenia multiglandulosa Duncan M. Porter 1960-10-12 728 San Mateo Jasper Ridge Biological Preserve, Stanford University; SW edge of main meadow next to chaparral (near area C) Comment
  JROH565  Calycadenia multiglandulosa D. E. Breedlove 1971-5-31 19387 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  POM263769  Calycadenia multiglandulosa L. S. Rose 1941-6-12 41268 San Mateo Emerald Lake, hills west of Redwood City. 120 Comment
  UC662579  Calycadenia multiglandulosa L. S. Rose 1941-6-12 41268 San Mateo hills w Redwood City; Emerald Lake 120 Comment
  UC894246  Calycadenia multiglandulosa Lewis S. Rose 1937-9-21 37658 San Mateo Emerald Lake, w of Redwood City 182 Comment
  SJSU8768  Calystegia purpurata L. J. Hoffman 1966-4-6 130 San Mateo San Bruno Mt off Crocker Ave, Daly City Comment
  CAS-BOT-BC224651  Calystegia purpurata subsp. purpurata Lewis S. Rose 1950-5-20 50141 San Mateo Emerald Lake region, hills w. of Redwood City 243 Comment
  CAS-BOT-BC224664  Calystegia purpurata subsp. purpurata Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  JEPS10201  Calystegia soldanella Rimo Bacigalupi with G. T. Robbins 1954-6-18 4558 San Mateo one-half mi n Pigeon Point; one-half mi n of Pigeon Point Comment
  JEPS112711  Calystegia subacaulis Dean W. Taylor 1994-5-10 14267 San Mateo Edgewood Park; ca. 300 meters SE of junction of Edgewood Road and Canada Road, ca. 200 m W of trail parallel to and on west side of Highway 280 137 Comment
  SD38402  Calystegia subacaulis Edith A. Purer 1933-5-30 3641 San Mateo Spring Valley Lakes. Comment
  CAS-BOT-BC224347  Calystegia subacaulis subsp. subacaulis A. A. Heller 1907-5-23 8557 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  CAS-BOT-BC224348  Calystegia subacaulis subsp. subacaulis Alice Eastwood 1933-5-14 18851 San Mateo Woodside, woods near the Schillings estate Comment
  POM271878  Camissonia ovata Arthur L. Cohen 1935-4-21 632 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  POM271879  Camissonia ovata Lyman Benson 1928-4-21 96 San Mateo Stanford University, Santa Cruz Mt., San Francisquito Creek. 122 Comment
  CAS-BOT-BC160329  Camissoniopsis cheiranthifolia subsp. cheiranthifolia John H. Thomas 1963-5-20 10108 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  UC874076  Camissoniopsis micrantha John Thomas Howell 1938-5-1 13773 San Mateo Colma Canyon Comment
  JROH1646  Campanula griffinii John Rawlings 2007-5-9 1012 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 5. 124 Comment
  SEINET10463021  Campanula prenanthoides Wolf 1927-7-14 WOLF 618 San Mateo SUMMIT OF KINGS MTN ROAD Comment
  SEINET10939004  Campanula prenanthoides Wolf 1927-8-13 WOLF 714 San Mateo LA HONDA GRADE, SANTA CRUZ MTNS Comment
  JROH1472  Capsella bursa-pastoris John H. Thomas 1975-4-5 17710 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC37658  Cardamine californica W. R. Dudley 1894-3-1 s.n. San Mateo Santa Cruz Peninsula. Near South San Francisco. Comment
  CAS-BOT-BC37660  Cardamine californica W. R. Dudley 1896-2-16 s.n. San Mateo Santa Cruz Peninsula. Devil's Canyon, near Black Mountain. Comment
  CAS-BOT-BC37667  Cardamine californica LeRoy Abrams 1902-3-16 2274 San Mateo Kings Mountain Road. Comment
  CAS-BOT-BC37685  Cardamine californica David D. Keck 1393 San Mateo Santa Cruz Mountains. La Honda road above Searsville Lake. Comment
  POM144148  Cardamine californica var. integrifolia C. F. Baker 1902-4-12 501 San Mateo La Honda. Comment
  JEPS23926  Cardamine oligosperma LeRoy Abrams 1902-4-5 2308 San Mateo Searsville Comment
  JROH1489  Cardamine oligosperma Roxana Stinchfield 1914-2-28 155 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  JROH1492  Cardamine oligosperma John H. Thomas 1968-3-17 14182 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1501  Cardamine oligosperma John Hunter Thomas 1987-4-7 24173 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Indian acorn grinding rock Comment
  UCSB18657  Cardamine oligosperma Schulte, John 1963-4-9 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC37990  Cardamine oligosperma W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula. Ravine above Pilar Point. Comment
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Oct 29 2021
  JROH579  Carduus pycnocephalus subsp. pycnocephalus John Hunter Thomas 1980-5-8 19952 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH584  Carduus tenuiflorus D. E. Breedlove 1971-5-31 19385 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  POM290232  Carex Lyman Benson 1930-5-1 2065 San Mateo Stanford University. 91 Comment
  CAS-BOT-BC19323  Carex barbarae Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5247 San Mateo Lobitos. Comment
  CAS-BOT-BC19324  Carex barbarae George Oberlander 1950-4-18 513 San Mateo San Francisco Watershed Reserve. Marsh, south boundary. Comment
  UC577167  Carex bolanderi Lewis S. Rose 1935-6-11 35216 San Mateo Kings Mountain Comment
  UC767142  Carex bolanderi R. F. Hoover 1940-9-1 4547 San Mateo La Honda summit Comment
  CAS-BOT-BC19545  Carex bolanderi W. R. Dudley 1899-5-14 s.n. San Mateo Sant Cruz Mountain Peninsula. Ravine west of Upper San Mateo Creek. Comment
  CAS-BOT-BC34072  Carex brevicaulis John Thomas Howell 1965-3-29 41035 San Mateo West end of summit ridge of San Bruno Mountain. 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
  POM193986  Carex exsiccata W. R. Dudley 1894-05 s.n. San Mateo San Mateo County: Woodside to Crystal Springs Reservoir Comment
  CAS-BOT-BC21811  Carex harfordii Lewis S. Rose 1935-5-29 35194 San Mateo Kings Mountain. Comment
  JROH4351  Carex harfordii John Rawlings 2010-5-19 1049 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Just beyond NE terminus of Leonard's Bridge, a large clump on the SE verge of the trail. 107 Comment
  SJSU15225  Carex harfordii Toni Corelli 2012-6-28 801 San Mateo Pescadero State Beach, North Pond 3 Comment
  CAS-BOT-BC210008  Carex harfordii Peter Rubtzoff; Barbara Duetsch; James Roof 1980-5-3 9437 San Mateo The Edward P. Lee Memorial Site, at the bottom of canyon, below the Nine Fern Rock. Comment
  CAS-BOT-BC227481  Carex harfordii Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1989-6-3 s.n. San Mateo San Bruno Mountains. In the main drainage area of the Shearwater area, west of Bayshore Boulevard 76 Comment
  CAS-BOT-BC119346  Carex obnupta W. R. Dudley 1896-4-18 s.n. San Mateo Pebble Peach Pasture, Pescadearo, Santa Cruz Mountain. Comment
  CAS-BOT-BC119347  Carex obnupta George Thomas Oberlander 1950-5-6 828 San Mateo Pilarcitos Lake, Marsh. Comment
  UC1100481  Carex obnupta Malcolm A. Nobs and S. Galen Smith 1949-8-25 1575 San Mateo s Rockaway Beach Comment
  CAS-BOT-BC176409  Carex obnupta Peter Rubtzoff 1978-5-18 9174 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC118332  Carex praegracilis W. R. Dudley 1906-6-12 s.n. San Mateo In meadow on Mt. side W of Trippstore, Woodside. Comment
  CAS-BOT-BC117642  Carex serratodens LeRoy Abrams 1902-5-4 s.n. San Mateo Woodside. Comment
  CAS-BOT-BC117653  Carex serratodens Cherie L. Wetzel 1969-6-20 883 San Mateo Near Canada College, Redwood City, just off Farm Hill Blvd. Comment
  SEINET4152292  Carex subbracteata Unknown 1938-5-1 13782 San Mateo Near south San Francisco Comment
  UC836144  Carex subbracteata John Thomas Howell 1938-5-1 13778 San Mateo near South San Francisco Comment
  RSA364769  Carex subbracteata L. S. Rose 1939-4-14 39063 San Mateo South San Francisco. 15 Comment
  RSA40332  Carex subbracteata L. S. Rose 1939-4-14 39063 San Mateo South San Francisco. 15 Comment
  RSA88836  Carex subbracteata J. T. Howell 1938-5-1 13783 San Mateo Near South San Francisco. Comment
  SEINET10750023  Carex subbracteata John Thomas Howell 1938-5-1 Howell 13783 San Mateo Near South San Francisco. Comment
  SEINET6192755 Image available Carex subbracteata J. T. Howell 1938-5-1 13782 San Mateo near South San Francisco Comment
  CAS-BOT-BC116826  Carex subbracteata var. subbracteata Walter Knight; Irja Knight 1965-6-20 s.n. San Mateo Crystal Cave Canyon in wet spot. Comment
  CAS-BOT-BC116827  Carex subbracteata var. subbracteata W. R. Dudley 1908-6-26 s.n. San Mateo Edge of Pond, near Coal Mine Ridge Road. Comment
  CAS-BOT-BC115513  Carex tumulicola W. R. Dudley 1898-4-24 s.n. San Mateo El Corte Madera Comment
  JROH4367  Carex tumulicola John Hunter Thomas 1981-4-27 20502 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC227876  Carex tumulicola Elizabeth McClintock; Paul Reeberg 1989-6-1 s.n. San Mateo San Bruno Mountains. In ravine at southern tip of ridge separating Juncus and Tank Ravines, above Hillside Boulevard 114 Comment
  CAS-BOT-BC230108  Carpobrotus chilensis Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mile N of Pigeon Point and about 39 miles S of San Francisco Comment
  CAS-BOT-BC230111  Carpobrotus chilensis Daniel Cohen 1953-5-9 96 San Mateo Sea cliffs facing ocean at Pebble Beach Comment
  UC32963  Carthamus lanatus F. T. Bioletti 1892-7-31 San Mateo South San Francisco Comment
  SEINET12027448  Castanopsis chrysophylla Unknown 1932-1 9240 San Mateo Kings Mtn Comment
  JROH5852  Castilleja John H. Thomas 1978-4-20 19090 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM15449  Castilleja affinis C. F. Baker 1902-4-6 464 San Mateo Crystal Springs Lake. Comment
  POM298045  Castilleja affinis A. A. Heller 1907-4-20 8442 San Mateo Near Lake Merced. Comment
  RSA15303  Castilleja affinis Carl B. Wolf 1927-4-3 273 San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  JEPS15585  Castilleja affinis subsp. affinis G. Thomas Robbins 1956-8-18 3741 San Mateo immediately n mouth of Butano Creek (nw of Pescadero) Comment
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Feb 28 2011
  JEPS15586  Castilleja affinis subsp. affinis G. Thomas Robbins 1956-8-18 3740 San Mateo immediately n mouth of Butano Creek (nw of Pescadero) Comment
Read comments
Feb 28 2011
  JROH3942  Castilleja affinis subsp. affinis John H. Thomas 1974-4-25 17213 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC444883  Castilleja affinis subsp. affinis R. L. Pendleton 1907-4-2 550 San Mateo w of Los Gatos 243 Comment
  UCR139351  Castilleja ambigua David D. Keck 1932-4-29 1453 San Mateo San Francisco Bay Region, Burlingame-San Mateo city limits, Bayshore Highway 3 Comment
  POM194753  Castilleja ambigua subsp. ambigua D. D. Keck 1927-6-10 394 San Mateo Radio Station, Montara Point. 0 Comment
  RSA408815  Castilleja ambigua subsp. ambigua Francis W. Pennell, D. D. Keck 1940-5-15 25427 San Mateo Route 101. Burlingame. 0 Comment
  UC1537444  Castilleja ambigua subsp. ambigua Gordon H. True Jr. 1936-6-7 488 San Mateo 2 mi s Pescadero 15 Comment
  JROH3954  Castilleja attenuata John H. Thomas 1961-4-29 9186 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3963  Castilleja attenuata John Hunter Thomas 1978-4-28 19159 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH3973  Castilleja densiflora subsp. densiflora Robert Robertson 1954-4-23 93 San Mateo Jasper Ridge Biological Preserve, Stanford University 170 Comment
  JROH3975  Castilleja densiflora subsp. densiflora John H. Thomas 1957-4-16 6659 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  JROH3984  Castilleja densiflora subsp. densiflora John Hunter Thomas 1983-4-3 21308 San Mateo Jasper Ridge Biological Preserve, Stanford University; along beach near Searsville Lab Comment
  UC1012339  Castilleja exserta F. W. Pennell and D. D. Keck 1940-5-15 25418 San Mateo e of upper Crystal Springs Lake (sw of San Mateo); Crystal Springs Lake 60 Comment
  CHSC42232  Castilleja foliolosa Rusti Gammon 1986-3-30 14 San Mateo Ca. 8.1 mi se of Saratoga, 4.1 mi w off hwy 9. 569 Comment
  POM283645  Castilleja foliolosa Lyman Benson 1935-3-10 6254 San Mateo La Honda Grade. Santa Cruz mtn range. Pacific Ocean watershed. 518 Comment
  CAS-BOT-BC32675  Castilleja franciscana Francis Whittier Pennell; David Daniels Keck 1940-5-15 25420 San Mateo East of upper Crystal Springs Lake, SW of San Mateo 91 Comment
  RSA428380B  Castilleja franciscana J. Doty 1969-3-26 595 San Mateo 100 yards E of jct Hwy 35 and 92, near summit of Caost Range, San Francisco Peninsula. Comment
  CAS-BOT-BC243829  Castilleja latifolia Otto M. Sokol 1953-5-9 86 San Mateo Just north of Pescadero Creek on coast road. Comment
  CAS-BOT-BC243831  Castilleja latifolia David D. Keck 1931-10-5 1289 San Mateo One mile north of Salada Beach, 200 m. from ocean. Comment
  CAS-BOT-BC243841  Castilleja latifolia John Thomas Howell 1933-4-9 10969 San Mateo Coastal hillside between Pescadero and Pigeon Pt. Comment
  POM283643  Castilleja latifolia Lyman D. Benson 1930-6-14 2158 San Mateo San Gregorio. 30 Comment
  UC187825  Castilleja latifolia Katharine Brandegee 1890-5-20 San Mateo Searsville Comment
  SD37774  Castilleja rubicundula subsp. lithospermoides Edith A. Purer 1933-5-24 3608 San Mateo Woodside Comment
  SD37772  Castilleja rubicundula subsp. lithospermoides Marie Cummings 1933-5-23 3712 San Mateo Spring Valley Lakes Comment
  CHSC1696  Castilleja subinclusa subsp. franciscana M. Barkowski 1930-4-29 San Mateo Moss Beach. Comment
  JEPS21809  Castilleja wightii Alvin W. Urquhart 1958-4-20 36 San Mateo n of Pomponio Creek (along State Hwy 1) 124 Comment
  JEPS47392  Castilleja wightii L. R. Heckard 1964-6-24 1401 San Mateo just s Lower Crystal Springs Reservoir dam (along Highway 35) 106 Comment
  JEPS47395  Castilleja wightii L. R. Heckard 1964-6-24 1397 San Mateo San Bruno Mt.; near television transmitting towers 304 Comment
  JEPS47396  Castilleja wightii L. R. Heckard 1964-6-24 1394 San Mateo near San Bruno Mt. summit (slope n of (below) transmitting station); San Bruno Mt. 304 Comment
  JEPS85725  Castilleja wightii L. R. Heckard 1968-7-23 2067 San Mateo along road from Daly City up Colma Canyon Comment
  JEPS88833  Castilleja wightii T. I. Chuang 1991-7-20 7879 San Mateo hills just s Rockaway Beach Comment
  RSA18450  Castilleja wightii Carl B. Wolf 1927-6-29 557 San Mateo South of Pebble Beach near Pescadero. Comment
  RSA505384  Castilleja wightii R. C. Bacigalupi, G. Thomas Robbins 1955-8-4 5446 San Mateo Along Calif. Highway No. 1, at western end of Montara Mountain, 1.1 mi. north of northern limits of town of Montara. Comment
  UC1618077  Castilleja wightii Donald G. Nelson 1939-6-14 624 San Mateo 3 mi s San Francisco Co. line (Skyline Blvd, due e of Mussel Rock on the coast) Comment
  UC648313  Castilleja wightii Blanche Clear 1938-5-22 San Mateo between Redwood and Belmont (Hiddne Valley); Hidden Valley Comment
  HSC89852  Castilleja wightii Rimo Bacigalupi, G. Thomas Robbins 1954-6-18 4548 San Mateo La Honda grade, on the E side of the Sierra Morena 591 Comment
  POM199579  Castilleja wightii Katherine Brandegee 1917-7-22 s.n. San Mateo Mussel Rock Station, Ocean Shore RR Comment
  UCD123037  Castilleja wightii Lewis S. Rose 1965-4-22 65026 San Mateo San Bruno Mountain, south of parking lot. 365 Comment
  JROH1526  Caulanthus lasiophyllus John H. Thomas 1968-5-22 14456 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC40397  Caulanthus lasiophyllus Peter H. Raven 1950-4-16 1802 San Mateo San Bruno Mountain. Summit Ridge. 243 Comment
  CAS-BOT-BC48309  Ceanothus cuneatus J. H. Thomas 1949-4-1 208 San Mateo west of Redwood City Comment
  SEINET13945825 Image available Ceanothus cuneatus Lewis S. Rose 1964-1 64011 San Mateo Emerald Lake, west of Redwood City. Alt. ca 400 ft. 122 Comment
  CAS-BOT-BC48395  Ceanothus cuneatus var. cuneatus A. D. E. Elmer 1903-3-1 4578 San Mateo Portola Comment
  JROH3526  Ceanothus cuneatus var. cuneatus Ann Lambrecht 2004-3-10 8 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 11. Chaparral-woodland transition. Comment
  CDA34104  Ceanothus incanus D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .158 San Mateo Santa Cruz Mountains.; Along Big Basin Hwy ~5 km E of Big Basin. Comment
  RSA282989  Ceanothus oliganthus var. sorediatus Lyman Benson 1928-11-25 787 San Mateo Searville Lake, Stanford University, Santa Cruz Mt. 122 Comment
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Jul 13 2009
  POM299416  Ceanothus oliganthus var. sorediatus L. S. Rose 1942-4-19 42012 San Mateo Santa clara County: Saratoga Road, 2 miles E of the Skyline Blvd edge of woods with Lithocarpus densiflorus, Arbutus Menziesii and Sequoia sempervirens Comment
  UC1071222  Ceanothus papillosus C. J. Kraebel 1934-4-15 7 San Mateo head of Pescadero Creek Santa Cruz Quad., head of Pescadero Creek Comment
  CAS-BOT-BC52295  Ceanothus thyrsiflorus J. I. McMurphy 1906-5-8 12 San Mateo Woodside, Santa Cruz Mts. 121 Comment
  RSA157755  Ceanothus thyrsiflorus I. L. Wiggins 1925-5-24 1744 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
  UC1219870  Ceanothus thyrsiflorus John H. Thomas 1961-5-7 9295 San Mateo San Bruno Mountain in northern part of county. 304 Comment
  SEINET12209977  Ceanothus thyrsiflorus Unknown 1932-1 8972 San Mateo Comment
  SEINET12209978  Ceanothus thyrsiflorus J. I. McMurphy 1906-1 12 San Mateo Santa Cruz Mts 122 Comment
  UCD18549  Ceanothus thyrsiflorus Roman Gankin 1950-7-9 21 San Mateo 1 mile west of city of Pescadero toward State Hwy 1. Along the roadside, swamp nearby, near ocean. 15 Comment
  POM351492  Centaurea calcitrapa Edith A. Purer 1933-8-13 18173 San Mateo Near Belmont Comment
  CAS-BOT-BC274583  Centaurea calcitrapa A. D. E. Elmer 1903-7-1 4961 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC274594  Centaurea calcitrapa Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  SEINET11860703  Centaurea calcitrapa Unknown 1933-8-13 10506 San Mateo Belmont Comment
  SJSU1124  Centaurea calcitrapa C. W. Sharsmith 1951-10-7 5863 San Mateo Alpine Road 3 mi NW of Palo Alto Comment
  JROH601  Centaurea melitensis John H. Thomas 1973-6-15 16849 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC277119  Centaurea melitensis George Oberlander 1950-5-6 895 San Mateo San Francisco Watershed Reserve. Near San Andreas Lake Comment
  JROH611  Centaurea solstitialis John Hunter Thomas 1991-11-21 26109 San Mateo Jasper Ridge Biological Preserve, Stanford University; SLAC corridor 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
  UC89050  Centromadia pungens subsp. pungens K. Brandegee 1901-9-1 San Mateo South San Francisco Comment
  UC943015  Centromadia pungens subsp. pungens Lewis S. Rose 1949-8-14 49166 San Mateo Bayshore Blvd San Mateo Comment
  JROH1697  Cerastium glomeratum John Hunter Thomas 1992-4-23 25145 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5737  Cerastium glomeratum John Rawlings 2015-4-5 1657 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near base of scree slope in old quarry off of Trail 12 111 Comment
  UC1084416  Cerastium glomeratum G. Thomas Robbins 1937-4-11 101 San Mateo near Spring Valley Lakes along rd. to Woodside Comment
  POM193985  Ceratophyllum demersum Roxana S. Ferris 1920-9-3 2042 San Mateo In upper Mud Lake, Coal Mine Ridge; Santa Cruz Mountain Peninsula. Comment
  RSA112373  Cercocarpus betuloides James I. McMurphy 1906-4-4 18 San Mateo Los Francos Creek, Santa Cruz Mts Comment
  JROH1818  Chenopodium californicum John H. Thomas 1966-4-29 11585 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1821  Chenopodium californicum Richard L. Garber 1971-5-11 3 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC463309  Chenopodium chenopodioides L. R. Abrams and I. L. Wiggins 1930-11-13 178 San Mateo Salada Beach; margin of pond Comment
  CAS-BOT-BC497729  Chlorogalum pomeridianum Elizabeth McClintock 1965-3-28 s.n. San Mateo Plants of San Bruno Mountain, Trillium Gulch Comment
  CAS-BOT-BC497731  Chlorogalum pomeridianum George Oberlander 1950-6-3 1039 San Mateo South San Andreas Lake Comment
  SEINET12044203  Chlorogalum pomeridianum L. S. Rose 1934-1 34256 San Mateo Crystal Springs Lake Comment
  JROH4647  Chlorogalum pomeridianum var. pomeridianum John H. Thomas 1974-6-27 17454 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the low flow crossing below Searsville Dam Comment
  JROH4648  Chlorogalum pomeridianum var. pomeridianum John H. Thomas 1974-6-27 17454 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the low flow crossing below Searsville Dam Comment
  CDA33536  Chondrilla juncea John Beall 2010-6-21 PDR# 1621666 San Mateo San Carlos, city block of El Camino Real, Olive Street, Arroyo St, & Laurel Street. 0 Comment
  UCSB1025  Chrysolepis chrysophylla Muller, Cornelius 1951-1-28 San Mateo South of Pescadero Comment
  RSA3093  Chrysolepis chrysophylla Carl B. Wolf 1931-8-21 2335 San Mateo 1/2 way up the east side of Kings Mt. 366 Comment
  SEINET13952978 Image available Chrysolepis chrysophylla Charles M. Belshaw 1936-1 1461 San Mateo Kings Mountain Road, 4.5 miles west of Woodside, South Coast Range. Comment
  CAS-BOT-BC36407  Chrysolepis chrysophylla var. minor Walter Knight; Irja Knight; James B. Roof; Gregory Whipple; Al Senenes 1969-9-22 2793 San Mateo Montara Mountain. North facing slope along dirt road to summit 365 Comment
  JEPS85230  Cicendia quadrangularis Roy E. Buck and James A. West 1985-4-29 524 San Mateo 1.9 air km ene Franklin Point (just n of Whitehouse Canyon rd, ca 0.8 km ne of Whitehouse Canyon Rd junction with Calif Hwy 1, Cascade Ranch) Comment
  JROH2583  Cicendia quadrangularis John H. Thomas 1966-4-2 11545 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176821  Cicendia quadrangularis John H. Thomas 1961-4-29 9182 San Mateo Jasper Ridge Biological Experimental Area, about five miles southwest of Palo Alto. Comment
  JROH2585  Cicendia quadrangularis John H. Thomas 1968-4-19 14301 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC384618  Cirsium J. Lovelle 1973-7-21 280 San Mateo Mt. Ellen Trail Comment
  UC306682  Cirsium brevistylum A. D. E. Elmer 1903-6-1 4277 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC277889  Cirsium brevistylum R. E. Frenkel 1964-8-21 756 San Mateo On Spring Valley Ridge Road at its junction with Whiting Ridge Road, SFWD 347 Comment
  CAS-BOT-BC277891  Cirsium brevistylum Peter H. Raven 1957-6-24 968 San Mateo 0.6 miles s. of San Gregorio Beach Comment
  RSA0070580  Cirsium brevistylum L. R. Abrams, Ira L. Wiggins 1939-6-3 427 San Mateo Ano Nuevo Point. Comment
  UC922266  Cirsium fontinale var. fontinale H. K. Sharsmith 1937-6-3 3951 San Mateo about 3 mi w of San Mateo; Crystal Springs Lake 152 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
  RSA0008390  Cirsium fontinale var. fontinale J. T. Howell 1939-6-16 14743 San Mateo Crystal Springs Lake. Comment
  SEINET14157452  Cirsium fontinale var. fontinale W. N. Suksdorf San Mateo Comment
  SEINET5506166  Cirsium fontinale var. fontinale John Thomas Howell San Mateo Comment
  CAS-BOT-BC288687  Cirsium quercetorum John Thomas Howell 1939-6-16 14746 San Mateo Crystal Springs Lake Comment
  JEPS89476  Cirsium quercetorum Dean W. Taylor 1989-8-1 10416 San Mateo Montara State Beach along Highway 1 at junction with road to North Peak of Montara Mountain Montara State Beach; Santa Cruz Mountains, , Hwy 1 67 Comment
  CAS-BOT-BC280515  Cirsium quercetorum Alice Eastwood 1922-5-28 11327 San Mateo Granada Comment
  CAS-BOT-BC280522  Cirsium quercetorum Lewis S. Rose 1934-5-15 34258 B San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC288688  Cirsium quercetorum H. K. Sharsmith 1937-6-3 3952 San Mateo E of lake near road which connects Skyline Blvd with road to Belmont, about 3 miles W of San Mateo, Crystal Springs Lake 152 Comment
  JROH636  Cirsium vulgare John H. Thomas 1970-7-5 15670 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH637  Cirsium vulgare John H. Thomas 1973-6-15 16841 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH639  Cirsium vulgare John H. Thomas 1974-8-3 17499 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285861  Cirsium vulgare Ira L. Wiggins 1977-7-23 22189 San Mateo Northerly side of San Francisquito Creek stream bed, ca 150 m upstream from Pope Street bridge, Menlo Park Comment
  CAS-BOT-BC162603  Clarkia Paul Reeberg 1989-5-16 s.n. San Mateo Upper Cow Trough Ravine, near Ridge Trail - San Bruno Mountains 289 Comment
  CAS-BOT-BC163963  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1903-6-6 s.n. San Mateo Alpine Road, Black Mt., Santa Cruz Range Comment
  CAS-BOT-BC163974  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1903-5-31 s.n. San Mateo Alpine Road, Black Mt., Santa Cruz Range Comment
  JROH3008  Clarkia purpurea subsp. viminea Duncan M. Porter 1960-5-26 702 San Mateo Jasper Ridge Biological Preserve, Stanford University; N part of ridge, above Searsville Lake Comment
  JEPS83042  Clarkia rubicunda Roy E. Buck, Randall A. Morgan, James A. West 1983-7-15 432 San Mateo ca. 0.5 km ne Pilarcitos Dam (near crest of Cahill Ridge, w of gravel rd., overlooking Pilarcitos Lake, 7.5 km nw of the intersection of Calif. Hwys. 35 and 92); San Francisco Watershed Reserve 289 Comment
  JROH3016  Clarkia rubicunda John H. Thomas 1973-6-15 16850 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3020  Clarkia rubicunda John H. Thomas 1974-6-30 17457 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3035  Clarkia rubicunda John Hunter Thomas 1987-5-19 24296 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR253362  Clarkia rubicunda R. F. Thorne, Percy C. Everett 1965-8-1 35076 San Mateo 21.5 miles south of Golden Gate Bridge 69 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-BC165127  Clarkia rubicunda L. R. Abrams 1907-8-25 s.n. San Mateo Between Pescadero and Half Moon Bay Comment
  CAS-BOT-BC165151  Clarkia rubicunda Phillip C. Wheeler 1965-7-8 s.n. San Mateo Quarry Canyon Comment
  RSA113614  Clarkia rubicunda Peter H. Raven 1957-7-6 11057 San Mateo Along Tunitas Creek 2.0 miles from junction with State Highway 1. Comment
  UC1279895  Clarkia rubicunda Peter H. Raven 1957-6-20 10954 San Mateo 2.6 mi n Redwood City turnoff (State Highway 5 (Skyline Boulevard)) Comment
  POM32260  Clarkia rubicunda subsp. blasdalei Katherine Brandegee 1908-08 s.n. San Mateo Between San Pedro and Moss Beach Comment
  RSA128518  Clarkia rubicunda subsp. blasdalei L. R. Abrams 1907-8-25 s.n. San Mateo Santa Cruz Mountain Peninsula: Between Pescadero and Half Moon Bay Comment
  CAS-BOT-BC439293  Claytonia exigua subsp. exigua John H. Thomas 1974-4-11 17131 San Mateo Area to the SE of Canada Road and Edgewood Road. NW of Woodside. 152 Comment
  JROH3347  Claytonia perfoliata subsp. perfoliata John H. Thomas 1967-4-28 12725 San Mateo Jasper Ridge Biological Preserve, Stanford University; near "Oaks" Comment
  JROH3348  Claytonia perfoliata subsp. perfoliata John H. Thomas 1975-4-19 17802 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC91483  Clematis lasiantha J. I. McMurphy 1906-4-30 20 San Mateo Santa Cruz Peninsula. Santa Cruz Mountains. Portola Valley. Comment
  CAS-BOT-BC91484  Clematis lasiantha L. R. Abrams 1914-4-2 5076 San Mateo Woodside. Comment
  JROH3409  Clematis lasiantha John H. Thomas 1966-4-29 11586 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3414  Clematis lasiantha John H. Thomas 1977-4-8 18524 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3423  Clematis ligusticifolia Toni Corelli 2009-8-12 354 San Mateo Jasper Ridge Biological Preserve, Stanford University; along fence along Portola Road 105 Comment
  JROH2872  Clinopodium douglasii John H. Thomas 1969-6-4 15110 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306644  Clintonia andrewsiana A. D. E. Elmer May, 1903 4331 San Mateo Butano Creek Comment
  CAS-BOT-BC499400  Clintonia andrewsiana W. R. Dudley 1895-6-4 s.n. San Mateo Pescadero Creek near Iverson's Comment
  CAS-BOT-BC499406  Clintonia andrewsiana A. D. E. Elmer 1903-5-1 4331 San Mateo Butano Creek Comment
  CAS-BOT-BC499407  Clintonia andrewsiana Mrs. Donahue 1921-5-30 s.n. San Mateo Kings Mt. Comment
  OBI49269  Collinsia heterophylla Lewis S. Rose 1939-5-5 39091 San Mateo San Mateo Cyn 46 Comment
  OBI78393  Collinsia heterophylla Rimo Bacigalupi, G. T. Robbins 1954-6-18 4551 San Mateo Roadbank along Alpine Rd, 1/4 mi W of Skyline blvd 701 Comment
  UC729634  Collinsia heterophylla Carl B. Wolf 1929-5-17 3714 San Mateo 1 mi w of Skyline Boulevard (on Alpine Road); Alpine Road 304 Comment
  CAS-BOT-BC240932  Collinsia multicolor Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain. In Devil's Arroyo Comment
  JROH4017  Collinsia sparsiflora var. collina Herbert Dengler 1965-4-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; S. of Searsville Rocks - just above "up" road to Riders' Shack area - or ca. 600' N.W. of Riders' Shack Comment
  JROH4018  Collinsia sparsiflora var. collina John H. Thomas 1976-4-2 18078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA29087  Collomia heterophylla D. G. Kelch 2009-6-9 9 .404 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  POM132599  Conioselinum gmelinii A. D. E. Elmer 1900-04 2289 San Mateo San Bruno Mountain Comment
  JROH208  Conium maculatum John H. Thomas 1964-7-3 10442 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road above Searsville Lake Comment
  JROH210  Conium maculatum John H. Thomas 1969-5-28 15081 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of lake Comment
  JROH218  Conium maculatum John Hunter Thomas 1982-5-18 20947 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Searsville Lake near bridge Comment
  UC306536  Conium maculatum A. D. E. Elmer July, 1903 4951 San Mateo San Mateo Comment
  POM133231  Conium maculatum C. F. Baker 1902-12-1 196 San Mateo Summit of Coast Range Comment
  RSA161348  Conium maculatum P. H. Raven 1961-8-24 16588 San Mateo East side of Crystal Springs Lake Comment
  SEINET5547340  Convolvulus arvensis H. S. Gentry 1931-1 94 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC285995  Conyza bonariensis John H. Thomas 1961-8-27 9692 San Mateo Colma. Near intersection of El Camino Real and F Street 45 Comment
  CDA7456  Conyza sumatrensis J. T. Howell 1975-9-25 51508 San Mateo San Bruno Mountain. Comment
  UCD77568  Corallorhiza maculata Robert E. Preston 2001-5-30 1534 San Mateo Ca. 9 mi nnw of Boulder Creek. 365 Comment
  SEINET8733335 Image available Cordylanthus pilosus L. S. Rose 1941-1 41362 San Mateo Woodside 60 Comment
  JROH4032  Cordylanthus pilosus subsp. pilosus Carol Zabel 1989-8-7 20 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 12, near Mapache Gate Comment
  RSA40318  Cordylanthus pilosus subsp. pilosus L. S. Rose 1941-8-9 41362 San Mateo Woodside. 549 Comment
  RSA101017  Cordylanthus pilosus subsp. pilosus G. Oberlander 1949-7-30 355 San Mateo South of Upper Crystal Springs Lake, San Francisco Watershed Reserve. Comment
  UC87483  Corethrogyne filaginifolia C. F. Baker 1902-5-10 810 San Mateo Crystal Springs Lake Comment
  POM88007  Corethrogyne filaginifolia var. californica L. R. Abrams 1902-5-11 2459 San Mateo Crystal Springs. Comment
  CAS-BOT-BC209820  Cornus glabrata Alice Eastwood 1912-6-10 344 San Mateo Crystal Springs Comment
  CAS-BOT-BC210354  Cornus sericea Lewis S. Rose 1956-5-7 56064 A San Mateo 3 mi. e. of Half Moon Bay 30 Comment
  CAS-BOT-BC210361  Cornus sericea Dr. E Goodman 1922-7-1 s.n. San Mateo Near Lake San Andreas Comment
  CAS-BOT-BC190042  Cortaderia jubata Elizabeth McClintock; Paul Reeberg 1988-8-12 s.n. San Mateo San Bruno Mountains. Along Guadalupe Canyon Parkway east of Northeast ridge. 60 Comment
  CAS-BOT-BC190032  Cortaderia selloana George Oberlander 1950-5-21 976 San Mateo San Francisco Watershed Reserve. Cahill Ridge. Comment
  HSC3476  Corylus cornuta subsp. californica C. B. Wolf 1927-2-26 223 San Mateo On the La Honda Grade Comment
  LA204122  Corylus cornuta subsp. californica D. Keck; 1932-2-12 1362 San Mateo Santa Cruz Mountains, La Honda road, E-slope of Coast Range above Searsville Lake 300.0 Comment
  RSA481440  Corylus cornuta var. californica Paul C. Silva 1948-1-31 2621 San Mateo Skyline Blvd. just north of junction of Alpine Creek Road. 701 Comment
  RSA15260  Corylus cornuta var. californica C. B. Wolf 1927-2-26 223 San Mateo Near the road on the La Honda Grade. Comment
  CAS-BOT-BC141551  Cotoneaster pannosus D. E. Breedlove 1974-5-13 36230 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  JROH3634  Cotoneaster pannosus John H. Thomas 1972-8-18 16154 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3646  Cotoneaster pannosus John Hunter Thomas 1983-7-20 22901 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC22928  Cotula coronopifolia Robert A. Schlising; Glenn Keator 1962-2-3 2047 San Mateo California Coast Ranges. Along Gazos Creek at Highway 1. Comment
  CAS-BOT-BC291464  Cotula coronopifolia John H. Thomas 1966-5-13 116112 San Mateo Near Palo Alto Yacht Harbor Comment
  CAS-BOT-BC291473  Cotula coronopifolia George Oberlander 1950-5-6 933 San Mateo Marsh, north boundary, San Francisco Watershed Reserve Comment
  CDA19795  Cotula mexicana D. Pendleton 2002-3-21 PDR 065823 San Mateo San Francisco Bay Area; Sharp Park Golf Course in Pacifica. 0 Comment
  CAS-BOT-BC427833  Crassula connata John H. Thomas 1965-4-29 10630 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  UCSC007735  Crassula connata Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH3651  Crataegus monogyna John H. Thomas 1965-4-10 10560 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH1963  Croton setiger John Hunter Thomas 1992-7-24 25394 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5815  Croton setiger John Rawlings 2016-8-16 1941 San Mateo Jasper Ridge Biological Preserve, Stanford University; trail 9 west of serpentine 184 Comment
  JEPS18858  Cryptantha clevelandii V. F. Hesse 1957-6-20 2233 San Mateo 1 mi n Saratoga Summit (near Highway 5) 762 Comment
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Oct 22 2021
  UC78495  Cryptantha flaccida C. F. Baker 1902-4-6 468 San Mateo Crystal Springs Lake Comment
  JROH5593  Cryptantha micromeres John Rawlings 2013-4-19 1179 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Trail 11 in chaparral. 144 Comment
  RSA157756  Cryptantha micromeres I. L. Wiggins 1925-4-11 1611 San Mateo San Mateo County, E of rock Crusher on San Francisquito Creek. Comment
  JROH5622  Cryptantha microstachys John Rawlings 2014-5-6 1223 A San Mateo Jasper Ridge Biological Preserve, Stanford University; on the top of Trevor's Knoll, about 70 m north of Trail 10. 181 Comment
  UC971944  Cupressus abramsiana C. McMillan, P. McMillan, R. Bacigalupi, L. Heckard, H. Dutton 1951-9-1 1620 San Mateo n of Big Basin (Butano Ridge, on sandstone slope, (The cypress area includes common corner of sections 11, 12, 13, and 14 of T8S R4W, Mount Diable Base and Meridian...)); Santa Cruz Mountains,Santa Cruz quadrangle, Butano Ridge Comment
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Sep 9 2014
  CAS-BOT-BC80652  Cupressus goveniana Harry A. Dutton 1949-9-1 s.n. San Mateo Butano Ridge between Pescadero and Butano Creeks, Santa Cruz Mountains. Comment
  CAS-BOT-BC80786  Cupressus macrocarpa John H. Thomas 1967-5-2 12814 San Mateo Millbrae. Along Skyline Blvd. near Millbrae Ave. Comment
  JROH1860  Cuscuta occidentalis John Rawlings 2011-10-18 1095 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Boat launch below Searsville Lab. 104 Comment
  RSA130967  Cuscuta salina S. D. Halsey 1908-9-26 s.n. San Mateo near Cooley's Landing Comment
  JROH5712  Cuscuta subinclusa John Rawlings, Ann Lambrecht, Diane Renshaw 2015-5-19 1548 San Mateo Jasper Ridge Biological Preserve, Stanford University. Horse Trail near Escobar Rd. 121 Comment
  HSC23885  Cuscuta subinclusa Mary Katherine Wicksten 1971-7-2 152 San Mateo Huddart Park, Kings Mtn. Rd. above Miwok Area Comment
  JEPS22117  Cynara cardunculus subsp. cardunculus J. H. Thomas 1958-10-21 7487 San Mateo near intersection of Bayshore Highway and Main Street; Redwood City Comment
  JROH5003  Cynodon dactylon John H. Thomas 1973-6-10 16819 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5005  Cynodon dactylon John Hunter Thomas 1987-5-26 24313 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC23980  Cynoglossum grande Mary Katherine Wicksten 1971-7-2 149 San Mateo Huddart Park, Miwok Flat Comment
  SEINET5546120  Cynoglossum grande H. S. Gentry 1931-1 14 San Mateo Collected about 1.5 miles W of San Mateo, Half-Moon Bay Road. Comment
  CAS-BOT-BC190352  Cynosurus echinatus J. H. Thomas 1961-8-20 9684 San Mateo Hiking and riding trail below Skyline Boulevard between Bear Gulch Road and Kings Mountain Road. 609 Comment
  JROH4377  Cyperus eragrostis John Hunter Thomas 1977-6-16 18806 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta in Searsville Lake. Comment
  JROH4381  Cyperus eragrostis John Hunter Thomas 1982-11-6 21205 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta along edge of Searsville Lake. Comment
  CAS-BOT-BC114455  Cyperus eragrostis Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo Buckeye Canyon, San Bruno Mountains. Comment
  SJSU15434  Dactylis glomerata Toni Corelli 2010-5-17 674 San Mateo Pescadero State Beach and Marsh Natural Preserve, south of north parking lot 6 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
  JROH5038  Danthonia californica John H. Thomas 1968-5-3 14437 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD61017  Danthonia californica var. americana A. A. Beetle 1942-6-11 3516 San Mateo 5 miles south of San Bruno. Comment
  JROH1904  Datisca glomerata John H. Thomas 1961-6-14 9543 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH232  Daucus pusillus John Hunter Thomas 1991-5-2 25020 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH234  Daucus pusillus John Hunter Thomas 1992-4-29 25171 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD49785  Deinandra corymbosa J. H. Thomas 1959-8-16 8067 San Mateo About 2 miles north of Pigeon Point along the coast. 14 Comment
  UC1177095  Deinandra corymbosa Peter H. Raven 1950-6-3 2264 San Mateo near San Andreas Lake 121 Comment
  UC702538  Deinandra corymbosa L. S. Rose 1941-8-9 41361 San Mateo Moss Beach, open sandy coastal fields Moss Beach 16 Comment
  UC796714  Deinandra corymbosa Ira L. Wiggins 1949-7-2 12199 San Mateo Pescadero Beach Comment
  UC990592  Deinandra corymbosa James I. McMurphy 1907-8-6 San Mateo between Woodside and Crystal Springs Comment
  CAS-BOT-BC299218  Deinandra corymbosa subsp. corymbosa Elsie Zeile 1909-5-20 s.n. San Mateo Burlingame Comment
  CAS-BOT-BC299201  Deinandra corymbosa subsp. corymbosa James I. McMurphy 1909-10-8 s.n. San Mateo Below Whitehouse Creek east of Franklin Point Comment
  CAS-BOT-BC299216  Deinandra corymbosa subsp. corymbosa Class Collection 1940-1-1 s.n. San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC299217  Deinandra corymbosa subsp. corymbosa H. D. Geis 1901-10-1 s.n. San Mateo Spanishtown 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-BC292114  Delairea odorata Roxana S. Ferris 1920-3-8 1761 San Mateo Frenchmans Creek near ocean 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-BC9236  Delphinium decorum W. R. Dudley 1896-4-17 s.n. San Mateo Pasture near Pebble Beach, Pescodero Comment
  CAS-BOT-BC10282  Delphinium hesperium Herbert L. Mason 1931-7-14 s.n. San Mateo Pescadero Creek, La Honda road Comment
  CAS-BOT-BC10292  Delphinium hesperium Elizabeth McClintock 1979-5-28 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  JROH3443  Delphinium hesperium subsp. hesperium John H. Thomas 1974-5-29 17396 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3459  Delphinium patens subsp. patens John Hunter Thomas 1985-4-11 23521 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassy area below and to the east of Searsville Dam Comment
  SEINET12099656  Delphinium variegatum M. T. Doutt 1931-1 s.n. San Mateo Skyline Blvd, W of Hillbrae Comment
  CAS-BOT-BC7897  Delphinium variegatum subsp. variegatum W. R. Dudley 1896-4-4 s.n. San Mateo near Crystal Springs Comment
  JROH3462  Delphinium variegatum subsp. variegatum Roger L. von Preissig 1954-4-23 25 San Mateo Jasper Ridge Biological Preserve, Stanford University 167 Comment
  UC118683  Delphinium variegatum subsp. variegatum C. F. Baker 1902-4-6 458 San Mateo Crystal Springs Lake Comment
  POM202455  Delphinium variegatum subsp. variegatum L. S. Rose 1933-4-30 33125 San Mateo Redwood City Comment
  CAS-BOT-BC632  Dendromecon rigida subsp. rigida Herbert L. Mason 1921-7-1 s.n. San Mateo Butano Ridge. Comment
  CAS-BOT-BC192599  Deschampsia cespitosa subsp. holciformis H. L. Mason 1921-5-29 s.n. San Mateo Near Arroyo de las Frijoles Comment
  CAS-BOT-BC192601  Deschampsia cespitosa subsp. holciformis George Oberlander 1950-4-22 724 San Mateo Cahill Ridge Comment
  JROH5049  Deschampsia danthonioides John Hunter Thomas 1982-5-7 20923 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET176086 Image available Deschampsia danthonioides D. D. Keck 1932-4-29 1448 San Mateo Redwood City; fields near the salt marshes Comment
  POM207175  Deschampsia holciformis E. B. Copeland 1903-6-10 3305 San Mateo Montara Point. Comment
  SJSU112  Dicentra formosa T. Rogers 1929-5-30 San Mateo Kings Mt Comment
  CAS-BOT-BC389662  Dichelostemma capitatum Wm. McCauley 1963-3-30 s.n. San Mateo Coyote Point Comment
  CAS-BOT-BC500890  Dichelostemma capitatum P R Hielborn 1920-5-16 223 San Mateo Plants of the Santa Cruz Mountain Peninsula, Santa Cruz Islandhills by San Francisquito Creek Comment
  CAS-BOT-BC500898  Dichelostemma capitatum George Oberlander 1950-3-18 563 San Mateo Sawyer Ridge Comment
  CAS-BOT-BC500932  Dichelostemma capitatum Javier Penalosa 1963-2-23 2661 San Mateo San Bruno Mtn. Ravine south of Crocker Ave. 182 Comment
  CAS-BOT-BC502166  Dichelostemma congestum Fred Hemphill 1973-4-22 730 San Mateo San Carlos. Chaparral area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC502168  Dichelostemma congestum Fred Hemphill 1973-4-22 693 San Mateo San Carlos. Chaparral area north of Malabar Road and Melendy Drive. 207 Comment
  SEINET12044675  Dichelostemma congestum G. C. Kimber, Roush, L. 1920-1 s.n. San Mateo Coal Mine Ridge Comment
  JROH4666  Dichelostemma multiflorum Ruth Porter 1999-5-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. North side of Road B Comment
  CHSC56594  Digitalis purpurea Steven Triano 1988-5-24 168 San Mateo Along se side of Old La Honda Road ca 0.5 air miles e of SkyLonda. 405 Comment
  CAS-BOT-BC150443  Diplacus aurantiacus J. F. Emmel 1970-2-22 256 San Mateo 0.3 air mile SE of 1314 summit, on NE slope of San Bruno Mt. Comment
  CAS-BOT-BC150452  Diplacus aurantiacus Margaret A. Barry 1937-5-23 146 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC150460  Diplacus aurantiacus J. H. Thomas 1954-4-3 3811 San Mateo Sand Hill Road, about 1 mile W. of Junipero Serra Blvd. 91 Comment
  CAS-BOT-BC150467  Diplacus aurantiacus W. R. Dudley 1900-4-20 s.n. San Mateo Hills near San Francisquito Cr. Comment
  CAS-BOT-BC150468  Diplacus aurantiacus Elizabeth McClintock; Paul Reeberg 1988-5-20 s.n. San Mateo Carter Street Comment
  RSA438392  Dipsacus fullonum E. S. Spalding 1923-8-3 s.n. San Mateo Near Pulgas Tunnel Comment
  CAS-BOT-BC121860  Dirca occidentalis Walter Knight; Irja Knight; James B. Roof; Gregory Whipple; Ihsan A. Al-Shehbaz 1969-9-22 2792 San Mateo 0.9 miles from Pilarcitos Dam en route to Montara Mountain. On San Francisco Water Dept. Property. 274 Comment
  CAS-BOT-BC121866  Dirca occidentalis John Thomas Howell 1945-7-8 30012 San Mateo 0.5 mile below Lake Pilarcitos dam Comment
  CAS-BOT-BC121867  Dirca occidentalis G. Edelbrock 1975-2-8 1 San Mateo San Francisco Watershed 152 Comment
  JROH4209  Dirca occidentalis John H. Thomas 1977-2-20 18470 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18298  Dirca occidentalis Carl B. Wolf 1927-5-31 418 San Mateo Searsville Lake Comment
  SEINET6957401  Dirca occidentalis Lorin I. Nevling 1996-2-16 346 San Mateo San Pedro Valley Park, Brooks Creek Trail in view of Brooks Falls. "Western Leatherwood." Comment
  JROH3376  Dodecatheon clevelandii subsp. patulum Ellen Searby 1955-4-1 78 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD166150  Dodecatheon clevelandii subsp. sanctarum Jack Major; M. Forde and S. Bamberg 1962-4-3 734 San Mateo 10 miles south of Ano Nuevo Pt. above Scott Creek. (Exact location unknown. Coordinates estimated by label maker). 115 Comment
  SEINET5548367  Dodecatheon hendersonii H. S. Gentry 1931-1 10 San Mateo 1.5 miles W of San Mateo, Half-Moon Bay road. Comment
  JROH1510  Draba verna John Hunter Thomas 1983-4-5 21331 San Mateo Jasper Ridge Biological Preserve, Stanford University; road below dam Comment
  CAS-BOT-BC159533  Drymocallis glandulosa var. glandulosa Ethel Crum 1930-4-27 707 San Mateo Woodside 152 Comment
  CAS-BOT-BC159543  Drymocallis glandulosa var. glandulosa Javier Penalosa 1963-2-23 2634 San Mateo San Bruno Mtn., ravine south of Crocker Ave. 213 Comment
  CAS-BOT-BC159505  Drymocallis glandulosa var. glandulosa Elizabeth McClintock; Phillip Wheeler 1967-5-14 s.n. San Mateo Vicinity of fence separating Brisbane from Crocker Estate Company position of San Bruno Mountain, on east side of Mountain, above Harold Ave. Comment
  JROH3740  Drymocallis glandulosa var. wrangelliana John Hunter Thomas 1986-5-6 24019 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA152261  Drymocallis glandulosa var. wrangelliana I. L. Wiggins 1925-04 1662 San Mateo On Kings Mtn Road three fourths of a mile above Woodside. Comment
  CAS-BOT-BC67882  Dryopteris arguta C. F. Baker 1902-1-15 320 San Mateo West side King's Mountain Comment
  CAS-BOT-BC67892  Dryopteris arguta David D. Keck 1932-2-12 1361 San Mateo La Honda Road, east slope of Coast Range above Searsville Lake 304 Comment
  JEPS35165  Dryopteris arguta W. L. Jepson 1922-3-19 9538 San Mateo Lake San Andreas Comment
  JROH28  Dryopteris arguta Lawrence J. Winship 1974-11-2 5 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH34  Dryopteris arguta John Hunter Thomas 1977-6-16 18743 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam. Comment
  JROH42  Dryopteris arguta John H. Thomas 1964-11-29 10543 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek below dam. Comment
  RSA693753  Dryopteris arguta C. B. Wolf 1928-3-14 1537 San Mateo La Honda grade in the Santa Cruz Mountains 152 Comment
  UCSC007740  Dryopteris arguta Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC208922  Echinochloa crus-galli George Oberlander 1949-9-25 393 San Mateo Upper Crystal Spr. Lake, San Francisco Watershed Reserve Comment
  RSA101005  Echinochloa crus-galli G. Oberlander 1949-10-25 393 San Mateo Upper Crystal Springs Lake, San Francisco Watershed Reserve Comment
  CDA5626  Echium pininana T. C. Fuller 1967-6-13 15943 San Mateo North side of road to Crystal Springs, 1.2 miles east of Highway 1 at Half Moon Bay. 0 Comment
  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-BC113593  Eleocharis acicularis George Thomas Oberlander 1950-5-6 841 San Mateo Pilarcitos Canyon Comment
  JROH5138  Elymus X gouldii John Rawlings 2011-8-2 1082 A San Mateo Jasper Ridge Biological Preserve, Stanford University; at edge of riparian woodland along San Francisquito creek SW of Dennis Martin site marker. 78 Comment
  JEPS83040  Elymus californicus Roy E. Buck, Randall A. Morgan, James A. West 1983-7-15 429 San Mateo near crest of Cahill Ridge (w of gravel road, 0.7 mi nw of gate and 3.3 km nnw of intersection of Cal Hwys 35 and 92, along Cahill Ridge to above Pilarcitos Lake); San Francisco Watershed Reserve 327 Comment
  POM295857  Elymus glaucus Lyman Benson 1935-5-5 6541 San Mateo Lake Searsville; Santa Cruz Mt. Range 152 Comment
  CAS-BOT-BC203680  Elymus glaucus subsp. glaucus Phillip Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Crystal Cave Canyon east of quarry Comment
  CAS-BOT-BC203686  Elymus glaucus subsp. glaucus H. A. Borthwick 1920-5-24 179 San Mateo Santa Cruz Mountain Peninsula. La Honda Comment
  CAS-BOT-BC203688  Elymus glaucus subsp. glaucus John H. Thomas 1961-5-7 9255 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH5103  Elymus glaucus subsp. glaucus John H. Thomas 1971-5-30 15979 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5105  Elymus glaucus subsp. glaucus John H. Thomas 1973-6-15 16847 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15223  Elymus glaucus subsp. virescens Toni Corelli 2011-5-23 705 San Mateo Bean Hollow State Beach, Arroyo de los Frijoles Trail. Coastal bluff top south of Bean Hollow Beach 7 Comment
  UCD164330  Elymus repens Peter Rubtzoff; Roman Gankin 1976-6-30 8703 San Mateo 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. Comment
  CAS-BOT-BC204302  Elymus trachycaulus subsp. trachycaulus L. R. A. 1902-5-11 2452 San Mateo Crystal Springs Comment
  SJSU15941  Elymus trachycaulus subsp. trachycaulus John Rawlings, Kem Hickman 2016-5-26 1816 B San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  SJSU15955  Elymus trachycaulus subsp. trachycaulus John Rawlings, Ken Hickman 2016-5-26 1832 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  JROH5278  Elymus triticoides W. H. Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Just outside gate on east side of low-flow causeway -- San Francisquito Creek, Whiskey Hill entrance, south side of road. Comment
  RSA176590  Epilobium brachycarpum John H. Thomas 1961-8-27 9696 San Mateo Colma; open sandy field near intersection of El Camino Real and F Street 46 Comment
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Jul 12 2015
  RSA18504  Epilobium brachycarpum Carl B. Wolf 1927-7-14 616 San Mateo Summit of Kings Mountain Rd. Comment
  HSC16554  Epilobium canum subsp. canum L. S. Rose 1965-9-4 65099 San Mateo Skyline Blvd. and Half Moon Bay Rd., Cahill Ridge 244 Comment
  JROH3057  Epilobium ciliatum subsp. ciliatum Ann Lambrecht 2006-8-14 26 San Mateo Jasper Ridge Biological Preserve, Stanford University; spillway of dam, western half, top tier Comment
  JROH3058  Epilobium ciliatum subsp. ciliatum Ann Lambrecht 2006-8-14 26 San Mateo Jasper Ridge Biological Preserve, Stanford University; spillway of dam, western half, top tier Comment
  SEINET12868531  Epilobium ciliatum subsp. watsonii A. A. Heller 1906-1 8377 San Mateo Near Ocean View, San Francisco Comment
  JROH3061  Epilobium densiflorum John H. Thomas 1971-8-7 16018 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM32709  Epilobium minutum C. F. Baker 1902-5-4 749 San Mateo Woodside. Comment
  SJSU15420  Epipactis helleborine Toni Corelli 2011-8-31 713 San Mateo Pescadero State Beach and Marsh Natural Preserve. West Butano Loop about 0.5 mile southeast of Hwy. 1 off of Pescadero Road. 3 Comment
  RSA0065214  Equisetum A. C. Sanders 2014-8-3 41236 San Mateo South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay. 3 Comment
  JROH60  Equisetum arvense John Hunter Thomas 1983-5-3 21879 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing Comment
  JROH61  Equisetum arvense John Hunter Thomas 1983-7-7 22822 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC57601  Equisetum telmateia Ira L. Wiggins 1931-3-15 5103 San Mateo between Skyline Boulevard and La Honda Comment
  JROH70  Equisetum telmateia subsp. braunii John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH71  Equisetum telmateia subsp. braunii John Hunter Thomas 1979-9-9 19717 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  IRVC3917  Equisetum telmateia subsp. braunii P. W. Rundel 1963-7-7 1138 San Mateo San Francisco Bay drainage area; Summer Spring Road; woodside. Santa Cruz Mountains 152 Comment
  SJSU1752  Equisetum telmateia subsp. braunii H. B. Johnston 1956-3-28 79 San Mateo Tunitas Creek, Tunitas Road, c.3 mi NE of Tunitas Comment
  CAS-BOT-BC291241  Erechtites minimus George Oberlander 1950-7-15 1084 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  UC1244716  Eremocarpus setiger John H. Thomas 1959-8-22 8076 San Mateo about 5 mi sw Palo Alto; Jasper Ridge 152 Comment
  CAS-BOT-BC286882  Ericameria ericoides David D. Keck 1931-10-5 1286 San Mateo 1 mile north of Salada Beach Comment
  CAS-BOT-BC216129  Eriodictyon californicum Walter Knight 1964-9-14 850 San Mateo Peak Mt., west of summit Comment
  CAS-BOT-BC216131  Eriodictyon californicum Fred Hemphill 1973-5-6 753 San Mateo North of Malabar Road and Melendy Dr., San Carlos 207 Comment
  CAS-BOT-BC216245  Eriodictyon californicum Josephine D. Randall 1907-6-1 165 San Mateo Los Trancos Road near Stanford University, Santa Cruz Peninsula Comment
  JEPS111099  Eriogonum gracile Zoe Ellis Chandik 1993-7-25 San Mateo Along Hwy 280, E side near Farmhill Road.. Comment
  UC1537293  Eriogonum gracile Gordon H. True Jr. 1937-7-31 831 San Mateo roadside, Alpine Road Alpine Road 182 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-BC251980  Eriogonum latifolium John H. Thomas 1961-5-7 9264 San Mateo San Bruno Mountain in northern part of county. 914 Comment
  CAS-BOT-BC251987  Eriogonum latifolium J. H. Thomas 1949-6-4 575 San Mateo Along coast, 1.4 miles S. of road to Pescadero Comment
  CAS-BOT-BC251988  Eriogonum latifolium C. F. Baker 1903-6-30 3359 San Mateo Pilarcitos Comment
  CAS-BOT-BC251995  Eriogonum latifolium A. D. E. Elmer 1903-7-1 4557 San Mateo Half Moon Bay Comment
  LA206931  Eriogonum latifolium Ira L. Wiggins; 1929-7-4 3797 San Mateo Pescadero Beach Comment
  RSA107485  Eriogonum latifolium L. S. Rose 1955-7-25 55167 San Mateo Pigeon Point 6 Comment
  RSA162485  Eriogonum latifolium E. K. Balls 1963-5-22 12068 San Mateo 12.2 miles south from turn off to San Gregorio, State Highway #1 6 Comment
  SEINET5330414  Eriogonum latifolium E. Crawford 1982-9-25 s.n. San Mateo 12 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-BC266073  Eriogonum luteolum A. D. E. Elmer 1903-6-1 4309 San Mateo Belmont Comment
  JEPS111094  Eriogonum luteolum Zoe Ellis Chandik 1992-7-14 92 -2 San Mateo Crystal Springs Reservoir, south edge of serpentine (sludge) talus slope, below Hwy 280 on San Francisco Watershed land, 0.1 mi N of Hwy 92 (Ralston Ave.) east of junction with Skyline Blvd 121 Comment
  JEPS111097  Eriogonum luteolum Zoe Ellis Chandik 1992-7-14 92 -3 San Mateo On north side of trail just inside Sunset (pedestrian) entrance of Edgewood County Park Comment
  JROH3231  Eriogonum luteolum var. luteolum John H. Thomas 1974-10-26 17636 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS127777  Eriogonum nudum var. auriculatum Adam C. Schneider with C. Matt Guilliams 2013-3-9 30 San Mateo Comment
  JEPS128396  Eriogonum nudum var. auriculatum Adam C. Schneider 2013-5-17 142 San Mateo Crystal Springs Reservoir. Comment
  POM165061  Eriogonum nudum var. auriculatum A. D. E. Elmer 1903-06 4311 San Mateo Crystal Springs Lake. Comment
  UC54768  Eriogonum nudum var. auriculatum J. Burtt Davy Jun 21 1893-Jun 23 1893 1149 San Mateo Pilarcitos Lake and Canyon Comment
  UC614886  Eriogonum nudum var. auriculatum Beryl O. Schreiber 1932-5-29 306 San Mateo Crystale Springs Comment
  CAS-BOT-BC268999  Eriogonum nudum var. auriculatum Elizabeth McClintock; Philip Wheeler 1967-5-14 s.n. San Mateo San Bruno Mountain. East side of mountain, above Harold Ave., Brisbane Comment
  RSA393324  Eriogonum nudum var. auriculatum E. A. Purer 1933-8-25 5522 San Mateo Spring Valley Lakes Comment
  SBBG32434  Eriogonum vimineum L. S. Rose 1964-9-9 64073 San Mateo Emerald Lake, W of Redwood City 243 Comment
  CAS-BOT-BC304084  Eriophyllum confertiflorum W. R. Dudley 1895-6-14 s.n. San Mateo Santa Cruz Mt Peninsula. Top of ridge by rocks near Searsville Dam Comment
  RSA218034  Eriophyllum confertiflorum Elizabeth McClintock, Walter Knight, Irja Knight, Baki Kasapligil 1967-7-18 s.n. San Mateo Near old quarry in Colma Canyon Comment
  RSA7603  Eriophyllum confertiflorum L. S. Rose 1933-5-17 33176 San Mateo Redwood City Comment
  JROH701  Eriophyllum confertiflorum var. confertiflorum John H. Thomas 1974-6-30 17456 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH711  Eriophyllum confertiflorum var. confertiflorum John Hunter Thomas 1981-5-8 20562 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA203569  Eriophyllum confertiflorum var. confertiflorum Lewis S. Rose; 1933-5-17 33176 San Mateo Redwood City Comment
  CAS-BOT-BC301266  Eriophyllum lanatum var. arachnoideum C. F. Leitholt 1893-5-27 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Summit Springs, Kings Mountain Comment
  CAS-BOT-BC301267  Eriophyllum lanatum var. arachnoideum George Oberlander 1950-7-15 1019 San Mateo San Francisco Watershed Reserve Comment
  RSA169298  Eriophyllum lanatum var. arachnoideum L. S. Rose 1964-6-3 64057 San Mateo N end of Bodega Bay 6 Comment
Read comments
Oct 24 2021
  POM204328  Eriophyllum latilobum I. L. Wiggins 1929-7-4 3785 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  CAS-BOT-BC301980  Eriophyllum staechadifolium Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  POM358130  Eriophyllum staechadifolium Glenn A. Gorelick 1967-5-5 s.n. San Mateo San Bruno Mts., overlooking Daly City near San Francisco Comment
  POM54691  Eriophyllum staechadifolium C. F. Baker 1901-10-1 1747 San Mateo Pillar Point Comment
  UC1118210  Eriophyllum staechadifolium T. Tyrrell 1928-9-26 7 San Mateo 2 mi s San Gregorio; Santa Cruz Quad. 182 Comment
  UCSB10755  Eriophyllum staechadifolium Myrick, Donald 1966-6-11 San Mateo Near Pescadero Creek off Highway #1 south of San Francisco Comment
  CDA5406  Eriophyllum staechadifolium var. artemisiifolium Wm. Davis 1958-6-6 San Mateo Pedro Valley, Sharp Park. 0 Comment
  CDA5407  Eriophyllum staechadifolium var. artemisiifolium F. E. Blanc 1960-6-28 4566 San Mateo 1 mile north of Half Moon Bay. 0 Comment
  RSA391777  Erodium botrys D. D. Keck 1932-4-18 1432 San Mateo Mills Field Airport, San Francisco Bay. 2 Comment
  JROH2603  Erodium brachycarpum W. R. Dudley 1903-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Serpentine ridge east of Searsville Reservoir. Comment
  JEPS121583  Erodium cicutarium Adam C. Schneider with C. Matt Guilliams 2013-3-9 33 San Mateo Crystal Springs Reservoir Comment
  JROH2605  Erodium cicutarium John H. Thomas 1977-4-19 18536 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC566783  Eryngium armatum Herbert L. Mason 1927-7-29 3982 San Mateo Pigeon Point Comment
  UC874915  Eryngium armatum Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9296 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC54510  Erysimum capitatum D. D. Davis 1903-5-1 s.n. San Mateo La Honda grove. Comment
  CAS-BOT-BC54830  Erysimum franciscanum W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake. Comment
  CAS-BOT-BC54837  Erysimum franciscanum G. B. Rossbach 1955-3-26 576 San Mateo Upper north slope of San Bruno Mountain north of Radio tower. 335 Comment
  CAS-BOT-BC54845  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-BC54851  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-3-28 905 a fl. 905b fr. San Mateo San Mateo Creek, below Crystal Springs Lake. 60 Comment
  JEPS90156  Erysimum franciscanum Dean W. Taylor 1988-4-8 9513 San Mateo n slope of se ridge of San Bruno Mountain ((near the ridgecrest), Right-of-way of eastern-most set of PG&E high-voltage powerlines crossing the mountain, Santa Cruz Mountains); Santa Cruz Mountains, San Bruno Mountain 237 Comment
  RSA101861  Erysimum franciscanum G. B. Rossbach 1938-4-3 807 San Mateo San Bruno Hills Comment
  UC1034730  Erysimum franciscanum G. B. and R. P. Rossbach 1939-5-12 912 San Mateo steep gravelly slope of headland above sea Pedro Point Comment
Read comments
Nov 23 2007
  UC1034933  Erysimum franciscanum G. B. and R. P. Rossbach 1939-4 907 a & b San Mateo above rd. n. end of Sawyer Ridge (between San Andreas Lake & San Mateo Creek) 289 Comment
  UC1034935  Erysimum franciscanum G. B. and R. P. Rossbach 1939-3 901 a&b San Mateo dunes just back of high sea cliff very near Sharp Park Comment
  UC10577  Erysimum franciscanum J. Burtt Davy 1895-4-20 1070 San Mateo Crystal Springs Lake Comment
  UC1211924  Erysimum franciscanum John H. Weiler and B. Hirano 1961-3-22 6138 San Mateo steep bluff along Hwy 1 0.2 mi s Devil's Slide (n of Moss Beach) Comment
  UC765069  Erysimum franciscanum R. F. Hoover 1941-4-23 4903 San Mateo rocky hill near Crystal Springs Dam Comment
  CAS-BOT-BC54859  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-5-12 912 San Mateo Slope of headland above sea, Padro Point. Comment
  CHSC22332  Erythranthe guttata Robert A. Schlising; Glenn Keator 1962-2-3 2044 San Mateo Coast Ranges. Along Highway 1, 3.9 mi N of jct with Bonnie Doon Road. Comment
  CAS-BOT-BC420646  Escallonia rubra var. macrantha Elizabeth McClintock; Paul Reeberg 1989-3-14 s.n. San Mateo Uncommon, along Guadalupe Canyon Parkway west of the park kiosk, on the north side of the parkway. 182 Comment
  CAS-BOT-BC403543  Eschscholzia californica H. A. Dutton 1900-2-11 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  CAS-BOT-BC403552  Eschscholzia californica Ned Cahill 1974-4-18 124 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC403560  Eschscholzia californica Walter Knight; Irja Knight 1964-4-25 632 San Mateo San Bruno Mountain. Power Line Ridge Comment
  JEPS51733  Eschscholzia californica Dr. L. M. Newlon 1921-1 245 San Mateo sea shore from Salada to Mussel Comment
  JEPS51735  Eschscholzia californica Dr. L. M. Newlon 1921-1 238 San Mateo sea shore from Salada to Mussel Comment
  POM149416  Eschscholzia californica C. F. Baker 1903-5-14 3256 San Mateo Crystal Springs, Lake Comment
  CAS-BOT-BC403533  Eschscholzia californica Dr. Barton W. Evermann 1924-6-22 s.n. San Mateo Ano [Ano] Nuevo Island Comment
  RSA445603  Eschscholzia californica subsp. californica Glenn A. Gorelick 1967-2-10 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  POM272325  Eschscholzia californica subsp. californica Arthur L. Cohen 1935-4-21 627 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  CAS-BOT-BC202732  Euonymus occidentalis M. Bourell; R. Patterson 1994-4-3 5297 San Mateo At northeast end of Hazelnut Trail near Weiler Ranch Road Trail. San Pedro Valley County Park 60 Comment
  CAS-BOT-BC202742  Euonymus occidentalis Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  UC306743  Euonymus occidentalis var. occidentalis A. D. E. Elmer 1903-1 4317 San Mateo Butano Creek Comment
  UC1130403  Euphorbia crenulata H. S. Yates 1935-2-3 5002 San Mateo 2 mi s San Gregorio; Santa Cruz Quad. 152 Comment
  RSA130685  Euphorbia crenulata C. F. (illegible) 1894-3-28 s.n. San Mateo Lobitas road. Comment
  RSA176579  Euphorbia lathyris John H. Thomas 1964-6-28 10435 San Mateo Along Half Moon Bay - Crystal Springs Lake road, about 2.2 mi, e of Half Moon Bay. Comment
  SJSU15422  Euphorbia lathyris Toni Corelli 2011-8-31 715 San Mateo Pescadero State Beach and Marsh Natural Preserve, Round Hill Trail at the end of Water Lane Road 5 Comment
  JROH1965  Euphorbia lathyris Carol Zabel and Ruth Porter 1999-5-17 41 a San Mateo Jasper Ridge Biological Preserve, Stanford University; north side of trail 12 Comment
  JROH1973  Euphorbia spathulata John H. Thomas 1971-4-10 15755 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1975  Euphorbia spathulata John H. Thomas 1974-4-4 17083 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC459225  Euthamia occidentalis David D. Keck 1931-9-27 1272 San Mateo Dumbarton Bridge Comment
  SEINET5708704 Image available Euthamia occidentalis Delzie Demaree 1933-1 10531 San Mateo Leepsic Junction, Baden. Rolling bay area.; Leepsic Junction Comment
  POM204950  Festuca C. F. Baker 1903-4-8 1920 San Mateo San Andreas Lake Comment
  JROH5149  Festuca arundinacea John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  CAS-BOT-BC278286  Festuca californica W. R. Dudley 1900-3-17 s.n. San Mateo Ravine north of Seal Cove 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-BC278350  Festuca californica subsp. californica L. R. A. 1902-5-11 2461 San Mateo Crystal Springs Comment
  CAS-BOT-BC278358  Festuca californica subsp. californica Javier Penalosa 1963-3-9 2664 San Mateo San Bruno Mountain. Slopes southeast of the summit (1314 ft.) 381 Comment
  UCD65864  Festuca californica subsp. californica P. B. Kennedy 1916-4-1 San Mateo Daly City, Colma Canyon, S San Francisco. Comment
  RSA582078  Festuca californica var. californica D. D. Keck 1932-5-11 1499 San Mateo Above Woodside on La Honda Road, east slope of Santa Cruz Mountains Comment
  CAS-BOT-BC278476  Festuca idahoensis L. R. A. 1902-5-11 2450 San Mateo Crystal Springs Comment
  CAS-BOT-BC278478  Festuca idahoensis Elizabeth McClintock 1964-4-17 s.n. San Mateo San Bruno Mountain Comment
  RSA100977  Festuca idahoensis G. Oberlander 1950-5-6 875 San Mateo Sawyer Ridge, San Francisco Watershed Reserve. Comment
  JROH5480  Festuca microstachys Duncan M. Porter 1960-4-22 663 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow near crest of N-facing slope above Webb Ranch. Comment
  JROH5496  Festuca myuros John H. Thomas 1967-5-12 12890 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC278860  Festuca occidentalis W. R. Dudley 1898-7-1 s.n. San Mateo Pescadero Creek 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
  RSA159417  Filago gallica John H. Thomas 1961-5-7 9249 San Mateo Colma, near intersection of El Camino Real and F Street 46 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
  CHSC1548  Fragaria chiloensis G. Herrington 1930-5-1 San Mateo Moss Beach. Comment
  POM139629  Fragaria chiloensis A. D. E. Elmer 1903-04 4799 San Mateo San Pedro. Comment
  POM275018  Fragaria chiloensis Lyman D. Benson 1931-3-3 2622 San Mateo Moss Beach. 15 Comment
  CAS-BOT-BC437039  Fragaria chiloensis Walter Knight; Irja Knight 1964-4-25 688 San Mateo West of Radio Road, San Bruno Mountain Comment
  JROH3667  Fragaria vesca John Hunter Thomas 1981-4-21 20461 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3668  Fragaria vesca John Hunter Thomas 1981-4-23 20486 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB18140  Fragaria vesca Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough 91 Comment
  CAS-BOT-BC437062  Fragaria vesca subsp. bracteata L. S. Rose 1927-3-25 s.n. San Mateo Woodside Comment
  CAS-BOT-BC457526  Fragaria vesca subsp. californica Elizabeth McClintock 1965-3-14 s.n. San Mateo Cable Ravine, San Bruno Mountain Comment
  CAS-BOT-BC457527  Fragaria vesca subsp. californica George Oberlander 1949-4-9 58 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve Comment
  CAS-BOT-BC457528  Fragaria vesca subsp. californica J. H. Thomas 1949-3-29 192 San Mateo Kings Mountain. Comment
  CAS-BOT-BC166910  Frangula californica Peter Rubtzoff 1975-10-24 8428 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; (tributary of East Fork Colma Creek). Comment
  JROH3546  Frangula californica subsp. californica John Hunter Thomas 1978-7-2 19250 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC223553  Fraxinus latifolia A. D. E. Elmer 1903-7-1 4615 San Mateo San Mateo Creek Comment
  UCD122086  Fraxinus latifolia Alan T. Whittemore 1976-5-29 108 San Mateo Crystal Springs Canyon, San Mateo Creek, 1/2 mile east of dam on Crystal Springs Road. 39 Comment
  CAS-BOT-BC130132  Fritillaria affinis Roxana S. Ferris 1921-3-21 2121 San Mateo [Ano] Ano Nuevo Pt. Comment
  POM169361  Fritillaria affinis C. F. Baker 1902-3-30 430 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC130118  Fritillaria affinis Walter Knight; Irja Knight 1965-3-21 990 San Mateo Trillium Gulch near Knife Edge Rock Comment
  RSA15286  Fritillaria affinis Carl B. Wolf 1927-4-3 254 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  JEPS4953  Fritillaria biflora var. ineziana Inez Smith 1914-3-12 San Mateo Hillsboro Comment
  CAS-BOT-BC130382  Fritillaria liliacea Marion Gallagher 1978-2-11 s.n. San Mateo Farm Hills school site, just east of Interstate 280 on Farm Hill Road route to Redwood City 158 Comment
  UC1057446  Fritillaria liliacea G. Thomas Robbins 1937-4-11 88 San Mateo near Spring Valley Lakes (on road to Woodside) Comment
  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
  JEPS83069  Galium Roy E. Buck, Randall A. Morgan, James A. West 1983-7-15 434 San Mateo along crest of ridge w gravel road (ca 3.2 km nw of Pilarcitos Dam and 2.4 km wsw of San Andreas Dam); San Francisco Watershed Reserve, Fifield Ridge 388 Comment
  RSA101002  Galium aparine G. Oberlander 1949-4-30 113 San Mateo Pilarcitos Canyon. San Francisco Watershed Reserve. Comment
  CDA9440  Galium californicum D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  UCD166156  Galium californicum Jack Major; M. Forde and S. Bamberg 1962-4-3 741 a San Mateo Above Coastways Ranch on Finney Creek. (Exact location unknown. Coordinates estimated by label maker.) Comment
  JROH3787  Galium murale John H. Thomas 1961-4-8 9074 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3791  Galium murale John H. Thomas 1967-6-1 12967 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5738  Galium murale John Rawlings 2015-4-5 1658 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near base of scree slope in old quarry off of Trail 12 111 Comment
  SEINET10902556  Galium triflorum Mary Susan Taylor 1978-8-30 Taylor 1857 San Mateo Comment
  JROH801  Gamochaeta ustulata John Hunter Thomas 1986-5-6 24004 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC194561  Garrya elliptica Phillip C. Wheeler 1965-4-27 s.n. San Mateo Sierra point Comment
  OBI14169  Garrya elliptica Lewis S. Rose 1962-2-5 62001 San Mateo San Andreas Lake 152 Comment
  SBBG34145  Garrya elliptica R. E. Dengler 1960-4-10 9 San Mateo Jasper Ridge, Stanford Biological Reserve 160 Comment
  SD41264  Garrya elliptica Delzie Demaree 1930-2-1 7312 San Mateo Los Trancos Woods. Comment
  UC1100357  Gastridium ventricosum Malcolm A. Nobs and S. Galen Smith 1949-8-26 1610 San Mateo marshy stream bank about 1 mi s Pigeon Point Comment
  CDA5304  Gaura sinuata T. C. Fuller 1974-5-21 19990 San Mateo San Pedro Valley County Park, east above the end of Linda Mar Boulevard, Pacifica. 0 Comment
  JROH2004  Genista monspessulana John Hunter Thomas 1984-4-24 23298 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Sand Hill Road fence Comment
  JROH2019  Genista monspessulana John Hunter Thomas 1991-5-2 25005 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  JROH2022  Genista monspessulana John Hunter Thomas 1991-5-9 25039 San Mateo Jasper Ridge Biological Preserve, Stanford University; near entrance gate Comment
  UCD119371  Genista monspessulana Annabelle Kleist 2008-5-28 Woo- 39 San Mateo Woodside, along Fox Hill Road. Comment
  SD227830  Geranium carolinianum G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3738 San Mateo Portola Valley: Golden Hills Rd. along Los Trancos Creek. 106 Comment
  HSC23939  Geranium retrorsum Mary Katherine Wicksten 1971-7-22 187 San Mateo Huddart Park, near park entrance Comment
  JROH3157  Gilia achilleifolia subsp. multicaulis John Hunter Thomas 1980-4-24 19899 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH5693  Gilia achilleifolia subsp. multicaulis John Rawlings 2015-3-31 1416 San Mateo Jasper Ridge Biological Preserve, Stanford University; sepentine prairie on ridge top south of a shallow drainage 128 Comment
  SJSU15952  Gilia clivorum John Rawlings, Ken Hickman 2016-5-26 1829 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; 25 yards down-slope from the San Francisco Watershed boundary fence 122 Comment
  UCSC008259  Gilia clivorum Randall Morgan 1987-4-29 s.n. San Mateo 1st big canyon at Devil's Slide Comment
  CAS-BOT-BC303681  Glebionis coronaria J. H. Thomas 1961-5-7 9245 San Mateo Colma. Near intersection of El Camino Real and F Street 45 Comment
  JEPS89470  Glebionis coronaria Dean W. Taylor 1988-4-8 9516 San Mateo n slope of se ridge of San Bruno Mountain ((near the ridgecrest), Right-of-way of eastern-most set of PG&E high-voltage powerlines crossing the mountain, Santa Cruz Mountains); Santa Cruz Mountains, San Bruno Mountain 237 Comment
  JROH5201  Glyceria X occidentalis John Rawlings 2007-6-9 1022 San Mateo Jasper Ridge Biological Preserve, Stanford University. A few meters downstream from the Bear Creek and San Francisquito Creek confluence on a gravel bar on the NW side of San Francisquito Creek. 81 Comment
  SEINET11849355  Gnaphalium chilense M. T. Doutt 1931-1 424 San Mateo Portola Comment
  SEINET11849362  Gnaphalium chilense E. H. Graham 1931-1 6933 San Mateo Ano Nuevo Pt., S of San Francisco Comment
  SEINET11835908  Grindelia E. A. Purer 1933-1 5369 San Mateo 2 mi S of Pigeon Point Comment
  JROH811  Grindelia camporum G. H. Mallory 1909-7-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; south end of Jasper Ridge Comment
  CAS-BOT-BC304502  Grindelia hirsutula Roxana Stinchfield 1915-9-19 252 San Mateo Santa Cruz Mountain Peninsula. Palo Alto Comment
  CAS-BOT-BC304529  Grindelia hirsutula Saichi Kawahara 1969-6-15 426 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1 4 Comment
  CAS-BOT-BC304531  Grindelia hirsutula J. T. Howell 1932-10-21 s.n. San Mateo Pigeon Point Comment
  CAS-BOT-BC304541  Grindelia hirsutula L. R. Abrams 1918-4-30 7064 San Mateo Bayshore Road, San Bruno Hills Comment
  CAS-BOT-BC304555  Grindelia hirsutula Phillip C. Wheeler 1965-7-8 s.n. San Mateo San Bruno Mountain. Along road on ridge Comment
  SJSU2215  Grindelia hirsutula W. P. Merry 1959-5-23 69 San Mateo beside Alpine Rd 7 mi W of Hwy 5 (Skyline Blvd.), Santa Cruz Mts Comment
  UC206210  Grindelia hirsutula Katharine Brandegee 1917-7-15 San Mateo Moss Beach Comment
  UC32136  Grindelia hirsutula J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Pilarcitos Canyon; Pilarcitos Lake, Pilarcitos Canyon Comment
  SEINET10614592 Image available Grindelia hirsutula Wilhelm N. Suksdorf 1913-6-23 Suksdorf 279 San Mateo Crystal Springs Lake. Comment
  RSA93068  Grindelia hirsutula var. hirsutula D. D. Keck 1932-5-25 1783 San Mateo Hills 2 miles W of Belmont Comment
  SEINET5709439 Image available Grindelia stricta Lowell E. Urbatsch 1972-1 1095 San Mateo Low area near coast along Hwy 1. Comment
  POM359102  Grindelia stricta var. platyphylla E. A. Purer 1933-7-27 18776 San Mateo Two miles south of Pigeon Point Comment
  RSA18345  Grindelia stricta var. platyphylla C. B. Wolf 1927-1-29 473 San Mateo Pescadero Comment
  SD88348  Grindelia stricta var. platyphylla Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay Comment
  POM273889A  Guillenia lasiophylla Lyman Benson 1931-3-15 2649 San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz; Watershed: San Francisco Bay 152 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
  JROH836  Helenium puberulum John H. Thomas 1974-6-27 17449 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing, below Searsville Dam 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
  JROH852  Helianthella californica var. californica John H. Thomas 1967-5-12 12880 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC224050  Helianthemum scoparium Fred Hemphill 1973-5-14 805 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC224057  Helianthemum scoparium George Oberlander 1949-6-25 225 San Mateo San Francisco Watershed Reserve Comment
  CAS-BOT-BC305929  Helminthotheca echioides Walter Knight; Walter Knight 1963-6-24 s.n. San Mateo San Bruno Mountain. Quarry 4 Comment
  CAS-BOT-BC305931  Helminthotheca echioides Alice Eastwood 1919-9-1 s.n. San Mateo San Mateo Comment
  CAS-BOT-BC313453  Hemizonia congesta subsp. luzulifolia Josephine D. Randall 1907-7-23 78 San Mateo Near Crystal Springs Lake, Santa Cruz Peninsula Comment
  CAS-BOT-BC314939  Hemizonia congesta subsp. luzulifolia John H. Thomas 1969-10-19 15480 San Mateo Near Canada College, Redwood City just off of Farm Hill Blvd. Comment
  CAS-BOT-BC314949  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1914-7-15 5140 San Mateo Crystal Springs Comment
  JEPS127874  Hemizonia congesta subsp. luzulifolia Adam C. Schneider 2013-5-17 185 San Mateo Crystal Springs Reservoir. Comment
  JROH864  Hemizonia congesta subsp. luzulifolia John H. Thomas 1959-8-22 8078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG28892  Hemizonia congesta subsp. luzulifolia L. S. Rose 1935-9-21 San Mateo Redwood City Comment
  SJSU15950  Hemizonia congesta subsp. luzulifolia John Rawlings, Ken Hickman 2016-5-26 1828 A San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north, down-slope from the San Francisco Watershed boundary fence 122 Comment
  UC134605  Hemizonia congesta subsp. luzulifolia C. F. Baker 1908-6-30 3350 San Mateo Crystal Springs Comment
  UC193423  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-13 10225 San Mateo 2.2 km e Crystal Springs Lake (from along road n of creek and up side of hill to n); San Mateo Creek Comment
  UC193425  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-13 10225 San Mateo 2.2 km e Crystal Springs Reservoir; San Mateo Creek 38 Comment
  UCD133006  Hemizonia congesta subsp. luzulifolia John H. Thomas 1958-6-11 7228 San Mateo about 4.3 miles due east of Belmont near Crystal Springs Reservoir. Comment
  CAS-BOT-BC314921  Hemizonia congesta subsp. luzulifolia David D. Keck 1931-10-5 1277 San Mateo Between Woodside and Crystal Springs Lake Comment
  SD30842  Hemizonia congesta subsp. luzulifolia Edith A. Purer 1933-8-4 5398 San Mateo Along roadsides of Bayshore Highway. Comment
  SEINET5782062 Image available Hemizonia corymbosa L. S. Rose 1941-8-9 41361 San Mateo Moss Beach Comment
  UCR66751  Hemizonia corymbosa Edith A. Purer 1933-7-27 5339 San Mateo Central Coast, Pigeon Point 15 Comment
  SEINET11848417  Hemizonia corymbosa E. A. Purer 1933-1 5339 San Mateo Pigeon Point Comment
  RSA133900  Hemizonia luzulifolia John H. Thomas 1958-6-11 7228 San Mateo About 4.3 miles due E of Belmont near Crystal Springs Reservoir. 91 Comment
  RSA81560  Hemizonia luzulifolia James I. McMurphy 1908-8-20 s.n. San Mateo Near causeway, between lakes, Crystal Springs Reservoir. Comment
  SEINET11848430  Hemizonia luzulifolia E. A. Purer 1933-1 5398 San Mateo Bayshore Highway Comment
  POM132681  Heracleum maximum A. D. E. Elmer 1903-07 5073 San Mateo Pilarcitos Stone Dam. Comment
  JROH880  Hesperevax sparsiflora var. sparsiflora John H. Thomas 1955-5-6 4980 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH885  Hesperevax sparsiflora var. sparsiflora John H. Thomas 1977-2-20 18469 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-BC176206  Hesperolinon congestum Marion Gallagher 1978-6-1 s.n. San Mateo At Farm Hill above Redwood City Comment
  CAS-BOT-BC176208  Hesperolinon congestum A. D. E. Elmer 1903-5-1 4422 San Mateo Crystal Springs Lake Comment
  UC1219880  Hesperolinon congestum John H. Thomas 1961-5-14 9379 San Mateo road bank and outcropping just n dam on San Mateo Creek 121 Comment
  JROH2933  Hesperolinon micranthum John Hunter Thomas 1981-5-25 20624 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC148471  Heteromeles arbutifolia Fred Hemphill 1973-4-15 681 San Mateo San Carlos, chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  HSC23976  Heteromeles arbutifolia Mary Katherine Wicksten 1971-6-29 136 San Mateo Huddart Park, along Zweirlein Trail Comment
  JROH3677  Heteromeles arbutifolia John H. Thomas 1965-12-19 11459 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3678  Heteromeles arbutifolia John H. Thomas 1973-6-10 16814 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3681  Heteromeles arbutifolia John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC310762  Heterotheca sessiliflora subsp. echioides E. A. McGregor 1906-9-23 s.n. San Mateo Corte de Madera Comment
  CAS-BOT-BC420888  Heuchera micrantha var. diversifolia L. S. Rose 1941-7-2 41289 San Mateo Kings Mountain 600 Comment
  CAS-BOT-BC420895  Heuchera micrantha var. diversifolia A. D. E. Elmer 1903-7-1 4762 San Mateo Pilarcitos Stone Dam Comment
  RSA0063144  Heuchera micrantha var. hartwegii A. D. E. Elmer 1903-07 4762 San Mateo Pilarcitos Stone Dam. Comment
  RSA0066088  Heuchera pilosissima John H. Thomas 1961-5-7 9283 San Mateo San Bruno Mountain, in northern part of county. 305 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
  JROH911  Hieracium albiflorum John Hunter Thomas 1983-6-29 22700 San Mateo Jasper Ridge Biological Preserve, Stanford University; top of rattlesnake rock Comment
  HSC23782  Hieracium albiflorum Mary Katherine Wicksten 1971-6-17 56 San Mateo Huddart Park; near Werder Flat, on the road to family campground Comment
  SEINET10598881  Hierochloe occidentalis Charles F. Baker 1902-1-15 Baker 247 San Mateo West side King's Mountain. About ledges and rocky places Comment
  SEINET954025  Hoita orbicularis Lewis S. Rose 1959-1 59031 San Mateo San Mateo, Black Mtn. Rd. near Skyline Blvd. 122 Comment
  JROH5210  Holcus lanatus John Hunter Thomas 1981-6-4 20672 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near lake. Comment
  RSA128789  Holcus lanatus P. H. Raven 1950-6-3 2268 San Mateo Near San andreas Lake. Comment
  SEINET10591390  Holcus lanatus Delzie Demaree 1933-6-12 Demaree 10374 San Mateo Bader Station. S. San Francisco. Small bottom. Comment
  RSA112370  Holodiscus discolor W. R. Dudley 1894-7-7 s.n. San Mateo Santa Cruz Peninsula. Near summit of Mountains, Bear Gulch Road. Comment
  RSA112372  Holodiscus discolor Lucile Roush 1918-3-31 s.n. San Mateo Santa Cruz Peninsula; Sierra Morena. Comment
  CAS-BOT-BC150064  Holodiscus discolor var. discolor Saichi Kawahara 1968-7-29 460 San Mateo Old Stage Road, south bank of Pomponio Creek 36 Comment
  POM205104  Hordeum brachyantherum E. B. Copeland 1903-6-10 3304 San Mateo Montara Point. Comment
  RSA149153  Hordeum brachyantherum John H. Thomas 1961-5-13 9341 San Mateo Coastal sand dunes at Franklin Point. Comment
  CAS-BOT-BC284678  Hordeum brachyantherum subsp. brachyantherum H. A. Borthwick 1921-4-7 s.n. San Mateo Santa Cruz Mountain Peninsula. San Bruno Mt. 91 Comment
  SJSU15222  Hordeum brachyantherum subsp. brachyantherum Toni Corelli 2011-5-23 704 San Mateo Bean Hollow State Beach, Arroyo de los Frijoles Trail. Coastal bluff top south of Bean Hollow Beach 7 Comment
  RSA0115578  Hordeum hystrix L. S. Rose 1953-4-17 53015 San Mateo Redwood City, along Bayshore Highway 3 Comment
  JROH5234  Hordeum marinum subsp. gussoneanum John H. Thomas 1955-5-6 4982 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent grassy slopes. Comment
  JROH5251  Hordeum marinum subsp. gussoneanum John Hunter Thomas 1992-5-14 25227 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10859740  Hordeum marinum subsp. gussoneanum Delzie Demaree 1932-5-16 Demaree 9139 San Mateo Spring valley lakes. Comment
  SEINET10595756  Hordeum murinum Delzie Demaree 1933-7-27 Demaree 10553 San Mateo Stabilized sand dunes 2 miles S of Pigeon Point. Comment
  CAS-BOT-BC289392  Hordeum murinum subsp. glaucum Paul Arnaud 1941-4-6 s.n. San Mateo Redwood City 731 Comment
  RSA123427  Hordeum murinum subsp. glaucum N. K. Carlson 1935-6-21 75 San Mateo Ridge between Oil and Stale Creeks 671 Comment
  RSA254233  Hordeum murinum subsp. leporinum Robert A. Norris 1975-3-31 2293 San Mateo Near Crocker Avenue, San Bruno Mountains. Comment
  CAS-BOT-BC271351  Hordeum vulgare John H. Thomas 1969-4-24 14922 San Mateo Near Canada College, Redwood City, near Farm Hill Drive Comment
  SJSU5186  Horkelia californica P. G. Cornelius 1957-6-2 126 San Mateo Half Moon Bay Comment
  UC964738  Hydrocotyle moschata W. J. Bevan 1951-5-4 San Mateo 24 Belford Way, San Mateo Comment
  UCD128235  Hydrocotyle sibthorpioides W. J. Bevan 1951-5-4 s.n. San Mateo at 24 Belford Way, San Mateo. Comment
  CAS-BOT-BC400966  Hypericum anagalloides Elizabeth McClintock; Paul Reeberg No date on label s.n. San Mateo San Bruno Mountains Comment
  RSA18359  Hypericum androsaemum C. B. Wolf 1929-5-25 3729 San Mateo Pebble Beach, S of Pescadero. Comment
  UC1776777  Hypericum canariense Ronald Pummer 2001-7-16 PDR 64513 San Mateo Along roadside, W of Hwy 1, near Gazos Creek between Pigeon Pt. and Ano Nuevo. Comment
  UCD160241  Hypericum canariense Christopher Dillis 2015-5-15 4 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-BC311389  Hypochaeris glabra Javier Penalosa 1963-3-30 2721 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 91 Comment
  CDA34775  Hypochaeris radicata D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .174 San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. Comment
  JROH936  Hypochaeris radicata John Hunter Thomas 1985-5-22 23679 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH937  Hypochaeris radicata John Hunter Thomas 1987-5-5 24239 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC311484  Hypochaeris radicata George Oberlander 1949-4-17 55 San Mateo San Francisco Watershed Reserve. On top of Sawyer Ridge Comment
  CAS-BOT-BC311493  Hypochaeris radicata Elizabeth McClintock 1965-5-23 s.n. San Mateo San Bruno Mountain. Top ridge east of Nike Station Comment
  UCD133480  Hypochaeris radicata J. D. Skoss 1948-8-22 111 San Mateo San Vicente Canyon, near Montara. Comment
  UCSB17223  Hypochaeris radicata Schulte, John 1963-4-26 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  SJSU2307  Iris douglasiana C. W. Sharsmith 1950-4-16 6636 San Mateo near Pescadero Point near Pescadero Comment
  CAS-BOT-BC133665  Iris longipetala Alice Eastwood; John Thomas Howell 1937-5-7 4325 San Mateo Hills south of Visitacion Valley 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-BC112616  Isolepis cernua J. Clausen 1939-7-1 1745 San Mateo Ano Nuevo Point, in depressions in stabilized dunes. Comment
  CAS-BOT-BC112618  Isolepis cernua Walter Knight; Irja Knight 1964-5-30 s.n. San Mateo Colma Canyon Comment
  CAS-BOT-BC112610  Isolepis cernua John Hunter Thomas 1973-4-25 16689 San Mateo Stanford University Lands along Sand Hill Road near Whiskey Hill Road. Comment
  SEINET7589109 Image available Isolepis cernua Lewis S. Rose 1956-7-2 56117 San Mateo Skyline Blvd, hills W of San Mateo. 183 Comment
  SEINET7589110 Image available Isolepis cernua E. B. Copeland 1903-6-15 3315 San Mateo Montara Point. Comment
  JROH2775  Juglans hindsii John H. Thomas 1980-11-18 20174 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC008165  Juncus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UCR254887  Juncus balticus Peter Rubtzoff, Elizabeth McClintock 1990-8-31 10044 San Mateo San Bruno Mountains, Willow Pond (located near Saddle Trail), c. 0.15 miles north of junction with Old Guadalupe Trail 210 Comment
  SEINET11788499  Juncus bolanderi Unknown 1932-1 9111 San Mateo above Spring Valley Lakes Comment
  SEINET3877729  Juncus bufonius Kaye H. Thorne, J. Chandler 1986-7-25 4921 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
  JROH5673  Juncus bufonius var. bufonius John Rawlings 2014-6-10 1275 San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek delta near open water. 104 Comment
  JROH4454  Juncus bufonius var. bufonius Carol Zabel 2003-3-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Along both sides of Road F at intersection with Trail 15. Comment
  JROH4463  Juncus bufonius var. occidentalis John H. Thomas 1968-4-19 14303 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4465  Juncus bufonius var. occidentalis John H. Thomas 1973-4-14 16561 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC227613  Juncus effusus subsp. pacificus Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1989-6-3 s.n. San Mateo San Bruno Mountains. PG&E Marsh 15 Comment
  UCR244745  Juncus effusus var. pacificus Peter Rubtzoff, Roman Gankin 1975-9-11 8373 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  UC1133660  Juncus lescurii G. E. Sindel 1935-7-25 308 San Mateo 1 mi w Pescadero; Santa Cruz Quad. 1 Comment
  JROH4484  Juncus occidentalis John Hunter Thomas 1978-5-16 19215 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4495  Juncus occidentalis John Hunter Thomas 1987-5-26 24314 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM176267  Juncus occidentalis E. B. Copeland 1903-03 3341 San Mateo Searsville. Comment
  UC142114  Juncus occidentalis Dr. E. B. Copeland Mar 1903 3341 San Mateo Searsville Comment
  JEPS128399  Juncus patens Adam C. Schneider 2013-5-17 129 San Mateo Crystal Springs Reservoir. Comment
  JROH4475  Juncus patens Kent E. Holsinger 1979-12-18 83 San Mateo Jasper Ridge Biological Preserve, Stanford University. E side of Searsville Lake, S side of big bay. Comment
  RSA494799  Juncus patens Lyman Benson 1930-4-17 2069 San Mateo Stanford University. 152 Comment
  UC842781  Juncus phaeocephalus L. R. Abrams and I. L. Wiggins 1939-6-3 429 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC182762  Juncus phaeocephalus Peter Rubtzoff 1980-8-4 9561 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Westernmost part of the area on slope across fence. Comment
  CAS-BOT-BC210091  Juncus phaeocephalus Peter Rubtzoff 1978-8-17 9260 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC210147  Juncus phaeocephalus Peter Rubtzoff 1978-7-8 9226 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  UC625335  Juncus phaeocephalus var. paniculatus L. R. Abrams and I. L. Wiggins 1939-6-3 426 San Mateo Ano Nuevo Point Comment
  JROH4041  Kickxia spuria John H. Thomas 1964-10-2 10514 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam along stream Comment
  JROH5268  Koeleria macrantha John H. Thomas 1968-5-22 14454 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD85838  Koeleria macrantha P. B. Kennedy 1916-5-7 s.n. San Mateo Crocker Estate, Burlingame. 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-BC274289  Lachnagrostis filiformis Henry E. Wieser 1932-6-4 s.n. San Mateo Black Mountain Road, Hillsborough Hills near Burlingame Comment
  CAS-BOT-BC340468  Lactuca saligna John Thomas Howell 1930-11-9 5711 San Mateo On the Skyline Boulevard in the hills above Millbrae Comment
  JROH952  Lactuca serriola John H. Thomas 1974-10-26 17633 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC340639  Lactuca serriola Ned Cahill 1974-5-13 276 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC341631  Lagophylla ramosissima Margaret A. Barry 1937-6-22 168 San Mateo Coal Mine Ridge Comment
  JROH964  Lagophylla ramosissima John Hunter Thomas 1983-6-2 22331 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC341629  Lagophylla ramosissima James I. McMurphy 1906-9-24 s.n. San Mateo Coal Mine Ridge Comment
  RSA107476  Lagophylla ramosissima L. S. Rose 1955-9-19 55176 San Mateo Skyline Boulevard, 7 miles west of Saratoga. 686 Comment
  UC1537552  Lamium amplexicaule Gordon H. True Jr. 1937-3-31 617 San Mateo near Salada Beach 60 Comment
  JROH5926  Lasthenia L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; on the high point of Jasper Ridge Comment
  CAS-BOT-BC339061  Lasthenia californica V. F. Hesse 1964-5-26 3205 San Mateo Pigeon Point 4 Comment
  CAS-BOT-BC339079  Lasthenia californica A. A. Heller 1907-4-25 8465 San Mateo San Bruno Hills Comment
  CAS-BOT-BC339086  Lasthenia californica A. D. E. Elmer 1903-4-1 4507 San Mateo San Bruno Hills Comment
  CAS-BOT-BC339087  Lasthenia californica Kenton L. Chambers 1956-6-20 1046 San Mateo Pebble Beach near Pescadero Point Comment
  JEPS17982  Lasthenia californica subsp. californica George B. Rossbach 1955-3-26 517 San Mateo n radio tower (upper n slope of mountain); San Bruno Mountain 335 Comment
  JROH980  Lasthenia californica subsp. californica John Hunter Thomas 1988-5-3 24440 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS20311  Lasthenia californica subsp. californica Lewis S. Rose 1956-5-28 56081 San Mateo Skyline Blvd. w San Mateo 182 Comment
  JEPS23589  Lasthenia californica subsp. macrantha Adele Lewis Grant 1917-5-6 939 San Mateo Pebble Beach near Pescadero 3 Comment
  SEINET11811268  Lasthenia chrysostoma M. T. Doutt 1931-1 414 San Mateo Skyline Blvd, W of Hillbrae Comment
  JEPS24276  Lasthenia glabrata subsp. glabrata J. H. Thomas 1954-4-2 3793 San Mateo 1.5 mi e of center Redwood City Comment
  POM49821  Lasthenia glabrata subsp. glabrata L. R. Abrams 1902-5-11 2456 San Mateo Crystal Springs. Comment
  CAS-BOT-BC355544  Lasthenia glabrata var. glabrata Edward Lee Greene 1883-5-1 s.n. San Mateo Belmont Comment
  UC311550  Lasthenia gracilis A. D. E. Elmer 1903-4-1 4507 San Mateo San Bruno Hills Comment
  CAS-BOT-BC368185  Lasthenia minor Otto M. Sobol 1953-5-9 s.n. San Mateo Pescadero Beach. Comment
  CAS-BOT-BC368190  Lasthenia minor Otto M. Sokol 1953-5-9 52 San Mateo Pescadero Beach Comment
  RSA406617  Lathyrus Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  POM19350  Lathyrus vestitus subsp. vestitus C. F. Baker 1902-5-10 8256 San Mateo Summit of Coast Range. Comment
  RSA15256  Lathyrus vestitus subsp. vestitus Carl B. Wolf 1927-2-19 218 San Mateo East side of Kings Mountain. Comment
  SEINET11062224 Image available Lathyrus vestitus subsp. vestitus A. A. Heller 1907-4-20 454 San Mateo San Bruno Hills Comment
  JEPS55372  Lathyrus vestitus var. vestitus R. L. Pendleton 1907-4-20 626 San Mateo Colma 182 Comment
  RSA0110304  Lavatera arborea John H. Thomas 1959-4-4 7660 San Mateo At Pescadero. 61 Comment
  RSA254232  Lavatera arborea Robert A. Norris 1975-3-31 2291 San Mateo Near Crocker Avenue, San Bruno Mountains. Comment
  CAS-BOT-BC323182  Layia chrysanthemoides John Thomas Howell 1933-5-26 11343 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC321074  Layia gaillardioides James McMurphy 1907-4-27 s.n. San Mateo Kings Mt. Comment
  UC34543  Layia gaillardioides unknown 1888-4-12 San Mateo San Pedro Ranch Comment
  CAS-BOT-BC321092  Layia gaillardioides Kellogg 1890-5-16 s.n. San Mateo Unspecified Comment
  CAS-BOT-BC321100  Layia gaillardioides David D. Keck 1932-6-1 1798 San Mateo 1.5 mi. NE of La Honda (5 mi SW of Skyline Blvd) Comment
  CAS-BOT-BC327502  Layia hieracioides Dr. E Goodman 1922-5-23 s.n. San Mateo San Bruno hills Comment
  JROH985  Layia hieracioides John H. Thomas 1974-5-3 17236 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC913102  Layia hieracioides David D. Keck and Wm. M. Hiesey 1940-6-1 5166 San Mateo opposite n end of Lake San Andreas; Skyline Boulevard 135 Comment
  CAS-BOT-BC327359  Layia hieracioides J. Clausen 1941-7-1 1868 San Mateo Base of Montara Mountain, near Montara 91 Comment
  CAS-BOT-BC327454  Layia hieracioides David D. Keck 1933-5-11 2306 San Mateo Skyline Boulevard, east of Salada, northern San Mateo County. Comment
  CAS-BOT-BC327480  Layia hieracioides Walter Knight; Irja Knight 1965-4-25 1238 San Mateo San Bruno Mountain; Power Line Ridge. Comment
  CAS-BOT-BC352223  Layia hieracioides Peter Rubtzoff; Roman Gankin; Elizabeth McClintock; Bill Burley 1979-6-7 9289 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC382096  Layia platyglossa John H. Thomas 1961-5-7 9266 San Mateo San Bruno Mountainin northern part of county. 396 Comment
  CHSC68147  Layia platyglossa A. D. E. Elmer 1903-4-1 5022 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC382090  Layia platyglossa Elizabeth McClintock 1978-3-25 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC382220  Layia platyglossa David D. Keck 1932-6-18 1980 San Mateo Skyline Blvd. at Langley Hill (SW of Stanford University) 600 Comment
  POM190415  Layia platyglossa subsp. campestris D. D. Keck 1932-6-18 1980 San Mateo Skyline Boulevard, at Langley Hill (SW of Stanford University) 610 Comment
  CAS-BOT-BC534549  Lemna gibba W. R. Dudley 1909-10-31 s.n. San Mateo Santa Cruz Peninsula, Woodside Valley Ponds Comment
  CAS-BOT-BC534550  Lemna gibba W. R. Dudley 1908-6-19 s.n. San Mateo Santa Cruz Peninsula, Ditch N. of Jersey Farm Dairy Comment
  CDA987  Leontodon taraxacoides D. G. Kelch, B. G. Baldwin, Sue Bainbridge, Abigail Moore 2005-6-21 5 .37 San Mateo S.F. Water District land, near Spring Valley. NE corner Pilarcitos Lake. Comment
  CAS-BOT-BC221521  Lepechinia calycina Kellogg 1870-5-1 s.n. San Mateo Unspecified Comment
  CAS-BOT-BC221539  Lepechinia calycina Alice Eastwood 1912-6-10 338 San Mateo Crystal Springs Comment
  JROH2784  Lepechinia calycina John H. Thomas 1955-5-6 5015 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC884239  Lepechinia calycina Lewis S. Rose 1937-5-30 37320 San Mateo Belmont 91 Comment
  RSA52666  Lepidium didymum I. L. Wiggins 1949-7-2 12198 San Mateo Pescadero Beach. Comment
  UCR47850  Lepidium draba Cynthia Taylor 1971-6-8 147 San Mateo Atherton, corner of Watkins Ave. and railroad tracks 17 Comment
  JEPS127808  Lepidium nitidum Adam C. Schneider with C. Matt Guilliams 2013-4-7 70 San Mateo Along dirt road running parallel to overhead power lines. GPS coordinates approximate. Comment
  CAS-BOT-BC12601  Lepidium nitidum John H. Thomas 1974-4-11 17138 A San Mateo To the southeast of Canada Road and Edgewood Road. Northwest of Woodside. 152 Comment
  CAS-BOT-BC12954  Lepidium strictum David D. Keck 1933-5-11 2301 San Mateo Montara Summit, Montara Mountain. Comment
  CAS-BOT-BC12946  Lepidium strictum John H. Thomas 1966-4-12 11556 San Mateo East Palo Alto. Along sidewalks near Woodland Avenue and University Avenue. Comment
  CAS-BOT-BC12953  Lepidium strictum John Thomas Howell 1955-5-5 s.n. San Mateo 700 block of Bromfield Road, Burlingame. Comment
  CDA32442  Leptochloa fascicularis I. J. Campbell 1959-12-14 San Mateo San Miguel 0 Comment
  POM65851  Leptosiphon ambiguus C. F. Baker 1902-5-4 753 San Mateo Woodside. Comment
  JROH3171  Leptosiphon androsaceus John H. Thomas 1971-4-10 15750 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA10321  Leptosiphon androsaceus H. A. Barker 1926-4-25 547 San Mateo Kings Mt. Comment
  JROH5663  Leptosiphon androsaceus Herb Dengler 1970-4-15 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
  SD3903  Leptosiphon androsaceus U. S. Grant IV Jun 1925 San Mateo Burlingame Comment
  UCSC005503  Leptosiphon androsaceus Randall Morgan 1995-6-22 2797 San Mateo Ridge west of Waterman Creek 335 Comment
  RSA187442  Leptosiphon liniflorus James I. McMurphy 1906-5-8 s.n. San Mateo Near head of Crystal Lake Comment
  UCD118865  Leptosiphon liniflorus Irene Brown 1959-5-15 148 San Mateo 6 miles south of entrance to refuge, San Francisco Game Refuge. 21 Comment
  JROH3188  Leptosiphon parviflorus John H. Thomas 1955-5-6 5003 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3191  Leptosiphon parviflorus John Hunter Thomas 1981-4-23 20479 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3187  Leptosiphon parviflorus Daniel Cohen 1953-4-11 26 San Mateo Jasper Ridge Biological Preserve, Stanford University; near top of Jasper Ridge Comment
  SJSU15218  Leptosiphon rosaceus Toni Corelli 2010-5-10 626 San Mateo Pillar Point Air Force Station 28 Comment
Read comments
Jan 23 2015
  CAS-BOT-BC324051  Lessingia arachnoidea Lewis S. Rose 1964-9-9 64075 San Mateo Crystal Springs Lakes west of San Mateo 243 Comment
  RSA136098  Lessingia arachnoidea W. R. Dudley 1902-9-21 s.n. San Mateo By road east of Crystal Springs Reservoir-near fork to Alius(?) House Comment
  UC33162  Lessingia arachnoidea Alice Eastwood 1896-9-1 San Mateo Crystal Springs Reservoir Comment
  UC829024  Lessingia arachnoidea Lewis S. Rose 1941-9-6 41434 San Mateo San Mateo Canyon 91 Comment
  RSA0001373  Lessingia bakeri C. F. Baker 1902-10-20 1834 San Mateo Searsville. Comment
  JROH1020  Lessingia glandulifera var. glandulifera John Hunter Thomas 1982-7-3 21062 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC324181  Lessingia hololeuca W. R. Dudley 1902-9-21 s.n. San Mateo Whipple Road, near Crystal Springs Lakes Comment
  JROH1033  Lessingia hololeuca John H. Thomas 1972-8-18 16153 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1035  Lessingia hololeuca John Hunter Thomas 1982-9-23 21164 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC73895  Lessingia hololeuca J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  SEINET7883357 Image available Lessingia hololeuca var. arachnoidea L. S. Rose 1941-1 41434 San Mateo San Mateo Canyon 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-BC342093  Leucanthemum vulgare Robert S. Cox, Jr. 1946-8-10 s.n. San Mateo Summit of Santa Cruz Mountains (Cahil [Cahill] Ridge) along State Highway 5, near road to Half Moon Bay Comment
  CAS-BOT-BC436531  Ligusticum apiifolium A. D. E. Elmer 1903-7-1 4966 San Mateo San Mateo Comment
  CAS-BOT-BC436529  Ligusticum apiifolium Elizabeth McClintock 1972-4-23 s.n. San Mateo San Bruno Mountain, above Fern Rock Comment
  SEINET6633381  Ligusticum apiifolium A. D. E. Elmer 1903-1 4803 San Mateo San Mateo Comment
  JROH2987  Ligustrum vulgare John Rawlings 2012-5-23 1116 San Mateo Jasper Ridge Biological Preserve, Stanford University; at the end of a spur off Trail 12 nearly opposite the intersection with Trail 10. The spur ends in a large patch of Scirpus microcarpus at the edge of Corte Madera Creek. 109 Comment
  JEPS85227  Lilaea scilloides Roy E. Buck and James A. West 1985-6-3 531 San Mateo 2.0 air km e Franklin Point (Cascade Ranch, along s side of Whitehouse Canyon Rd, e of first curve in from CA Hwy 1, ca 0.7 air km ne of Whitehourse Canyon Rd-CA 1 junction) 60 Comment
  RSA18085  Lilaea scilloides Carl B. Wolf 1929-4-29 3663 San Mateo Small reservoir, 1 mile S of Portola, San Mateo Comment
  CAS-BOT-BC451673  Lilaea scilloides H. L. Mason 1922-3-28 s.n. San Mateo Pigeon Pt. Comment
  CAS-BOT-BC130795  Lilium pardalinum W. S. Atkinson 1901-7-6 s.n. San Mateo Pescadero Creek near Harrison P.O. Comment
  JEPS95209  Limnanthes macounii R. Ornduff 1998-4-12 10168 San Mateo e side of Hwy 1, just s of Etheldore St, opposited Half Moon Bay airport Moss Beach Comment
  UC1740209  Limnanthes macounii Rudolf Schmid 2000-2-24 2000 -2 San Mateo opposite Half Moon Bay Airport (along E side of Hwy 1) 10 Comment
Read comments
Aug 5 2007
  UC908670  Linanthus androsaceus Herbert L. Mason 1935-5-21 8314 San Mateo near Moss Beach Comment
  UC908011  Linanthus androsaceus Herbert L. Mason 1935-5-21 8315 San Mateo s of La Honda (Alpine Road); Santa Cruz Mountains Comment
  JEPS83043  Linanthus liniflorus Roy E. Buck, Randall A. Morgan, James A. West 1983-7-15 431 San Mateo ca 0.5 km ne Pilarcitos Dam (and 7.5 km nw of the intersection of Calif Hwys 35 and 92, near crest of Cahill Ridge, w of gravel rd, overlooking Pilarcitos Lake); San Francisco Watershed Reserve 289 Comment
  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
  JROH2940  Linum bienne Ann Lambrecht 2002-5-18 2 San Mateo Jasper Ridge Biological Preserve, Stanford University; Sand Hill Road fence line Comment
  CAS-BOT-BC36072  Lithocarpus densiflorus var. densiflorus Josephine D. Randall 1907-6-29 128 San Mateo Kings Mt. Road Comment
  RSA12769  Lithocarpus densiflorus var. densiflorus Carl B. Wolf 1934-11-12 6241 San Mateo Alpine Creek Rd. from La Honda to Pescadero, about 2 mi. from La Honda, Santa Cruz Mts. 305 Comment
  CAS-BOT-BC36069  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1895-3-26 s.n. San Mateo Beyond Post Office and near Mill on Alpine road Comment
  CAS-BOT-BC430776  Lithophragma affine Margaret A. Barry 1937-5-1 52 San Mateo Coal Mine Ridge Comment
  JROH3886  Lithophragma affine John H. Thomas 1970-4-4 15543 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3890  Lithophragma affine John Hunter Thomas 1981-4-23 20468 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  UC137140  Lithophragma heterophyllum C. F. Baker 1902-4-6 651 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC436223  Lithophragma heterophyllum Paul Arnaud 1941-4-19 s.n. San Mateo Redwood City - Hills, after Hesler farm entrance. Comment
  JROH1567  Lobularia maritima John Hunter Thomas 1983-2-21 21284 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH737  Logfia gallica John H. Thomas 1977-5-14 18607 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH736  Logfia gallica John H. Thomas 1977-4-29 18569 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC173830  Lolium multiflorum Peter Rubtzoff 1977-6-21 9058 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, northwest of Fog Forest. Comment
  RSA184982  Lolium perenne subsp. multiflorum L. S. Rose 1966-5-2 66036 San Mateo Emerald Lake, west of Redwood City. 91 Comment
  SEINET13944393 Image available Lomatium dasycarpum Lewis S. Rose 1950-1 50137 San Mateo Emerald Lake region. Hills W of Redwood City. Alt ca 800 ft 244 Comment
  UCD127627  Lomatium dasycarpum Lewis S. Rose 1965-4-22 65027 San Mateo San Bruno Mountain, south of parking lot. 365 Comment
  JROH256  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1958-5-10 7145 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH269  Lomatium dasycarpum subsp. dasycarpum John Hunter Thomas 1981-4-30 20514 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH257  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1963-3-2 10027 San Mateo Jasper Ridge Biological Preserve, Stanford University; north side of ridge near Westridge end Comment
  JROH281  Lomatium macrocarpum John H. Thomas 1975-5-26 17915 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM132671  Lomatium macrocarpum A. D. E. Elmer 1903-04 4926 San Mateo Crystal Springs Lake. Comment
  JROH275  Lomatium macrocarpum John H. Thomas 1963-3-20 10026 San Mateo Jasper Ridge Biological Preserve, Stanford University; serpentine area on north side of ridge near Westridge end Comment
  JROH278  Lomatium utriculatum Duncan M. Porter 1960-4-22 657 B San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of NE-facing slope above Webb Ranch. Quadrat H-3 Comment
  JROH1651  Lonicera hispidula John H. Thomas 1964-11-29 10546 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1668  Lonicera hispidula John Rawlings, Ann Lambrecht 2010-6-23 0933 San Mateo Jasper Ridge Biological Preserve, Stanford University; thirty yards southeast of old brick well and a few yards uphill of Trail 2 extension near a large fallen oak and mature hawthorn 113 Comment
  CAS-BOT-BC240603  Lonicera hispidula Carl B. Wolf 1931-11-5 1805 San Mateo Santa Cruz Mts. 2 mi. w. of La Honda 304 Comment
  RSA120036  Lonicera hispidula var. vacillans H. L. Mason 1921-7-4 s.n. San Mateo La Honda - Pescadero Creek Rd. Comment
  UCR51650  Lonicera involucrata 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
  SEINET12266824  Lonicera involucrata Unknown 1932-1 8994 San Mateo between Sky Line Drive & Half Moon Bay Comment
  POM16716  Lotus formosissimus A. D. E. Elmer 1903-04 4860 San Mateo Lake San Andreas Comment
  POM265133  Lotus formosissimus I. L. Wiggins 1929-5-10 3674 San Mateo Roadside between Pigeon Point and Pescadero. Comment
  UC665645  Lotus formosissimus Ethel Crum 1934-4-29 1701 San Mateo s of Pescadero 30 Comment
  POM18350  Lotus micranthus C. F. Baker 1902-5-4 744 San Mateo Woodside. Comment
  SEINET5557839  Lotus scoparius H. S. Gentry 1931-1 90 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  SEINET12151371  Lotus subpinnatus Unknown 1932-1 9102 San Mateo Betw. Sky Line Drive and Half Moon Bay Comment
  UC81109  Lotus wrangelianus C. F. Baker 1902-5-1 776 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC60245  Lunaria annua Emma Millett 1917-4-4 s.n. San Mateo Kings Mountain. Comment
  JROH5563  Lupinus affinis John Rawlings 2013-4-2 1186 San Mateo Jasper Ridge Biological Preserve, Stanford University; above upper end of Trail 11 137 Comment
  SBBG33485  Lupinus affinis A. D. E. Elmer -Apr-1903 5021 San Mateo Portola Comment
  RSA262978  Lupinus affinis Dunn, Brown 1946-5-15 2542 San Mateo 3.7 miles northeast of La Honda on the southeast side of the highway from Woodside to La Honda. Comment
  SEINET10488359  Lupinus affinis Charles F. Baker 1902-4-6 Baker 473 San Mateo Crystal springs lake. Colonies frequent along banks and grassy slopes, Especially near borders of thickets Comment
  UC82049  Lupinus albifrons C. F. Baker 1902-3 341 San Mateo Crystal Springs Lake Comment
  UCSB11178  Lupinus albifrons Connelly, Dianne 1962-4-21 San Mateo San Mateo County Game Preserve, 15 miles southeast of San Francisco on Highway 9 152 Comment
  CAS-BOT-BC195787  Lupinus albifrons var. albifrons Charles Piper Smith 1946-3-26 46117 San Mateo South Crystal Springs Lake, Woodside Road Comment
  CAS-BOT-BC195815  Lupinus albifrons var. albifrons L. R. A. 1902-4-13 2340 San Mateo San Mateo Canon [Canyon] Comment
  CAS-BOT-BC195786  Lupinus albifrons var. albifrons Charles Piper Smith 1946-3-26 46115 San Mateo Highway 5, San Francisco County Jail Road north Comment
  CAS-BOT-BC195795  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-22 48498 San Mateo Highway 5 - junction Woodside 6 mile road, 2.8 miles north Comment
  CAS-BOT-BC195809  Lupinus albifrons var. albifrons W. R. Dudley 1894-4-21 s.n. San Mateo Ravine of San Mateo Creek 3 miles above town Comment
  CAS-BOT-BC196112  Lupinus albifrons var. collinus Charles Piper Smith 1908-4-26 1417 San Mateo Side of San Bruno Mountain, south-east of Cemeteries Comment
  CAS-BOT-BC196125  Lupinus albifrons var. collinus Roxana S. Ferris 1921-4-7 2131 San Mateo San Bruno Mt. 213 Comment
  CAS-BOT-BC196130  Lupinus albifrons var. collinus C. F. B. 1902-3-22 341 San Mateo Crystal Springs Lake Comment
  RSA22000  Lupinus albifrons var. collinus J. T. Howell 1938-5-1 13770 San Mateo Colma Canyon 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
  SEINET10484535  Lupinus albifrons var. collinus Walter Knight, Irja Knight 1965-3-15 Knight 1225 San Mateo Low growing on open slopes. Colma canyon. San bruno mountains Comment
  SEINET10970193  Lupinus albifrons var. collinus J. C. Downey 1955-4-2 Downey 212 San Mateo Near the twin peaks 213 Comment
  JEPS85208  Lupinus arboreus Roy E. Buck, James A. West 1985-4-29 523 San Mateo along n side of Whitehouse Canyon Rd. just w of minor gulch, e of first curve in from CA Hwy 1 ca 0.7 air km ne Whitehouse Canyon Rd. - CA 1 jct (2.0 air km e of Franklin Point, Cascade Ranch); e of Franklin Point, Cascade Ranch 60 Comment
  SEINET10488460  Lupinus arboreus Didley 1906-6-10 DIDLEY s.n. San Mateo Santa cruz mountain peninsula. By road, s cabil ridge Comment
  SEINET5327651  Lupinus arboreus E. Crawford 1982-9-25 s.n. San Mateo On west side of Highway 1 at intersection with Bonny Doon Road. 12 Comment
  POM349925  Lupinus arboreus var. arboreus E. A. Purer 1933-7-27 18256 San Mateo Two miles south of Pigeon Point Comment
  RSA10285  Lupinus arboreus var. arboreus H. A. Barker 1927-5-14 664 San Mateo North of Half Moon Bay. Comment
  RSA6289  Lupinus arboreus var. arboreus D. D. Keck 1932-5-11 1767 San Mateo Two miles north of San Gregorio. 15 Comment
  JROH2119  Lupinus bicolor Toni Corelli 2010-3-29 364 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Road E at junction Trail 9 106 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
  UC73188  Lupinus bicolor Harley P. Chandler 1901-3-14 794 San Mateo Colma Comment
  UCD107185  Lupinus bicolor A. A. Heller 1911-4-12 10250 San Mateo near Stanford University. Comment
  SEINET11071805 Image available Lupinus bicolor subsp. umbellatus A. A. Heller 1907-1 8451 San Mateo Near Lake Merced Comment
  CAS-BOT-BC215063  Lupinus chamissonis Charles Piper Smith 1947-4-25 47183 San Mateo Edgemar Comment
  RSA18323  Lupinus densiflorus var. aureus Carl B. Wolf 1929-5-17 3712 San Mateo Alpine Road east of Skyline Blvd. Comment
  UC127061 Image available Lupinus eximius J. Burtt Davy 1895-4-20 1050 San Mateo Lake Pilarcitos; ; Lake Pilarcitos, San Mateo Co Comment
  RSA414793  Lupinus formosus var. formosus E. A. Purer 1933-8-13 5426 San Mateo Near Belmont Comment
  UC865157  Lupinus formosus var. formosus Alice Eastwood, John Thomas Howell 1938-6-26 6077 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC8329  Lupinus lasiotropis Charles Fuller Baker 470 San Mateo Crystal Springs Lake Comment
  JROH2122  Lupinus latifolius var. latifolius John H. Thomas 1977-4-29 18575 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC15897  Lupinus latifolius var. latifolius Alice Eastwood May 1896 San Mateo Crystal Springs Comment
  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
  UCD109096  Lupinus nanus Carl B. Mankinen 1967-4-5 s.n. San Mateo ca. 100 yards from ocean; junction of State Highway 1 and 84. Comment
  UCD164200  Lupinus nanus Peter Rubtzoff 1978-7-8 9225 San Mateo San Bruno Mountains. 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction. East Fork Colma Creek Canyon, W side of canyon. Comment
  SEINET10871083  Lupinus polycarpus David B. Dunn, Howard Brown 1946-5-15 Dunn 2545 San Mateo Collected in open lush meadow in the hilltops of the san francisco peninsula, On hwy. From woodside to la honda, 3.7 mi ne of la honda on the se side of the Hwy. Comment
  RSA181297  Lupinus succulentus John H. Thomas 1965-4-13 10565 San Mateo Along El Camino Real in San Carlos. Comment
  RSA3803  Lupinus vallicola subsp. apricus L. R. Abrams 1914-4-20 5128 San Mateo At the confluence of Los Troncos and San Francisquito creeks. Comment
  JEPS125910  Lupinus variicolor Dean W. Taylor 2002-3-20 17955 San Mateo Franklin Point, coastal bluff, about 1 mile SE along the coast from actual point. Comment
  RSA162483  Lupinus variicolor E. K. Balls 1963-5-22 12065 San Mateo 4.1 miles N of Moss Beach, along Hwy 1. 61 Comment
  SEINET10489102  Lupinus variicolor Smith 1948-4-20 Smith 48110 San Mateo Hwy 1. San pedro point, n grade. Comment
  POM290435  Luzula comosa Lyman Benson 1930-5-3 2102 San Mateo Above Woodside, Mt. Range: Santa Cruz 244 Comment
  POM290432  Luzula comosa Lyman Benson 1931-2-16 2584 San Mateo Stanford University. Corte Madra Creek. 152 Comment
  JROH4527  Luzula comosa var. comosa John Hunter Thomas 1981-4-23 20485 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC72371  Luzula subsessilis Harley P. Chandler 1901-3-15 805 San Mateo west of Colma Comment
  CAS-BOT-BC210034  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
  CAS-BOT-BC441363  Luzula subsessilis Elizabeth McClintock 1964-4-17 s.n. San Mateo San Bruno Mountain: on top of mountain Comment
  CAS-BOT-BC441374  Luzula subsessilis R. E. Frenkel 1964-5-22 505 San Mateo San Francisco Water District, 0.3 mile N of Sawyer Ridge Road, on Portola Ridge Road 268 Comment
  UC1057747  Luzula subsessilis F. A. Pitelka 1946-4-13 San Mateo one mi n Montara; n of Montara 30 Comment
  JROH3366  Lysimachia arvensis John H. Thomas 1975-4-19 17791 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0011334  Lythrum hyssopifolia John H. Thomas 1954-5-28 4242 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 30 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
  CAS-BOT-BC343904  Madia elegans Barrett Anderson 1986-8-12 3252 San Mateo Crystal Springs Rd at Skyline Blvd. 92 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
  JROH1057  Madia exigua John Hunter Thomas 1982-7-3 21066 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC343332  Madia gracilis David D. Keck 1932-5-25 1780 San Mateo Hills two miles west of Belmont Comment
  JEPS112942  Madia gracilis Dean W. Taylor 1994-5-10 14275 San Mateo San Mateo Creek drainage; along Crystal Springs Road 0.3 mi East of junction of Tartan Trail 67 Comment
  JROH1071  Madia gracilis John H. Thomas 1969-5-28 15093 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1087  Madia gracilis John Hunter Thomas 1986-5-1 23997 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1088  Madia gracilis John Hunter Thomas 1987-5-15 24286 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near picnic area Comment
  POM87787  Madia madioides L. R. Abrams 1902-5-20 2474 San Mateo Kings Mountain Comment
  CAS-BOT-BC345126  Madia sativa Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  CAS-BOT-BC345127  Madia sativa D. E. Breedlove 1973-9-26 35554 San Mateo Pescadero Creek County Park 365 Comment
  JROH1116  Madia sativa John Hunter Thomas 1988-10-17 24594 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM204315  Madia sativa I. L. Wiggins 1929-7-4 3796 San Mateo Pescadero Beach Comment
  RSA11166  Madia sativa C. B. Wolf 1927-6-29 561 San Mateo South of Pebble Beach near Pescadero Comment
  UCR256296  Madia sativa Peter Rubtzoff 1979-7-26 9300 San Mateo 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, San Bruno Mountains 213 Comment
  CAS-BOT-BC345120  Madia sativa David D. Keck 1932-6-18 1981 San Mateo Skyline Blvd., at Langley Hill (S.W. of Stanford University) 600 Comment
  POM49380  Madia sativa L. R. Abrams 1901-9-1 2227 San Mateo Menlo Park Comment
  CAS-BOT-BC512104  Maianthemum racemosum subsp. amplexicaule Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Romanzoffia ravine; San Bruno Mountain Comment
  CAS-BOT-BC512112  Maianthemum racemosum subsp. amplexicaule J. H. Thomas 1949-4-14 277 San Mateo Kings Mountain; Western North America Comment
  CHSC13506  Maianthemum stellatum S. Villard 1974-4-28 7 San Mateo Found on King's Mt. Rd., ca. 1.5 mi w of Mounted Patrol Grounds, Woodside. 182 Comment
  JROH4717  Maianthemum stellatum John Hunter Thomas 1988-4-7 24383 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12044094  Maianthemum stellatum W. R. Dudley 1902-1 s.n. San Mateo by Alpine Road on Corte de Madera Creek, Santa Cruz Peninsula Comment
  UC18767  Malacothamnus davidsonii Alice Eastwood 1896-5-1 San Mateo Crystal Springs Comment
  UC871285  Malacothamnus davidsonii Alice Eastwood 1912-6-10 346 San Mateo Crystal Springs Comment
  SJSU10824  Malva arborea E. C. Garbett 1961-6-1 397 San Mateo Moss Beach Comment
  SEINET7248026  Malva arborea D. R. Kaplan 1961-1 s.n. San Mateo 100 ft. East of Moss Beach Comment
  CHSC28453  Marah fabacea Robert A. Schlising 1963-3-15 2449 San Mateo Along Skyline Blvd., near junction with Half Moon Bay Road. Comment
  RSA187384  Marah fabacea John H. Thomas 1964-6-19 10420 San Mateo Ano Nuevo Island, 1/2 mile off shore and 20 miles NW of Santa Cruz Comment
  HSC7023  Marah fabacea P. A. Murphy 1965-4-16 10 San Mateo About 5 mi. from Half Moon Bay on the Higgin's Canyon Rd. Comment
  RSA15241  Marah fabacea C. B. Wolf 1927-2-17 202 San Mateo Los Trancos Creek, 2 miles back of Stanford University. Comment
  CAS-BOT-BC67843  Marsilea vestita Peter H. Raven 1950-6-3 2269 San Mateo San Andreas Lake 121 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
  JROH5783  Matricaria discoidea John Rawlings 2016-4-26 1758 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rd E near Trail 13. 105 Comment
  JROH5901  Matricaria discoidea M. Ray 1982-4-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Close to Searsville Lab Comment
  CHSC39845  Medicago polymorpha Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  JROH2165  Medicago polymorpha John H. Thomas 1967-5-10 12863 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2175  Medicago polymorpha John Hunter Thomas 1988-6-2 24499 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC269472  Melica californica L. R. A. 1902-5-4 2407 San Mateo Woodside Comment
  JROH5298  Melica californica Herbert Dengler 1957-4-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC264186  Melica subulata L. R. Abrams 1915-6-14 5560 San Mateo Kings Mountain Road, first bridge Comment
  CAS-BOT-BC264187  Melica subulata George Oberlander 1950-4-23 867 San Mateo San Francisco Watershed Reserve, south boundary Comment
  CAS-BOT-BC264244  Melica torreyana Phillip C. Wheeler 1965-5-18 s.n. San Mateo Near base of mountain at Olivet Cemetery, San Bruno Mountain Comment
  SEINET3561264 Image available Melica torreyana Lewis S. Rose 1932-5-3 32216 San Mateo San Bruno. 183 Comment
  JROH2195  Melilotus indicus John Hunter Thomas 1983-5-23 22240 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack side & low-flow crossing Comment
  POM284511  Melissa officinalis Lyman Benson 1937-8-15 8489 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains. 244 Comment
  CDA20054  Mentha pulegium L. Kuwahara 2002-10-9 PDR 064652 San Mateo San Francisco Bay Area; Along dam of reservoir at Pomponio Ranch, 3300 Pomponio Crk Rd, San Gregorio. 0 Comment
  JROH2809  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
  JEPS22980  Mercurialis annua V. Duran 1933-3-20 San Mateo near Montara Mountain Comment
  CDA4875  Mercurialis annua T. C. Fuller 1958-10-16 1444 -58 San Mateo Just east of Sanchez Adobe House, south side of Linda Mar Boulevard, Pedro Valley. 0 Comment
  CAS-BOT-BC438142  Mesembryanthemum nodiflorum Malcom A. Nobs 1948-12-20 721 San Mateo Redwood City yacht harbor Comment
  CAS-BOT-BC428906  Micranthes californica Miss E. Cannon 1891-1-1 s.n. San Mateo South San Francisco, Hills. Comment
  CAS-BOT-BC428907  Micranthes californica Paul Arnaud 1941-3-16 s.n. San Mateo Redwood City, near Hesler farm entrance - Hills. 45 Comment
  JROH1120  Micropus californicus var. californicus John H. Thomas 1961-4-29 9187 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1135  Micropus californicus var. californicus John Hunter Thomas 1989-5-9 24719 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5619  Micropus californicus var. californicus John Rawlings 2014-5-9 1227 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 20 meters west of Road C and 20 meters south of Trail 18. 127 Comment
  JROH1133  Micropus californicus var. californicus John Hunter Thomas 1988-5-3 24437 San Mateo Jasper Ridge Biological Preserve, Stanford University; picnic area Comment
  UC218911  Microseris bigelovii A. Eastwood San Mateo San Bruno Range Comment
  UC92194  Microseris douglasii subsp. douglasii A. Kellogg San Mateo San Bruno Hills Comment
  CAS-BOT-BC349023  Microseris douglasii subsp. douglasii K. L. Chambers 1953-5-12 463 San Mateo 3.2 mi. n. of Woodside on road to Crystal Springs Lake (Crystal Springs Lake road). [Locality info from collection label and voucher label combined.] 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
  RSA107061  Microseris douglasii subsp. douglasii L. S. Rose 1956-5-28 56079 San Mateo Skyline Blvd W of San Mateo. 183 Comment
  CAS-BOT-BC349148  Microseris douglasii subsp. tenella LeRoy Abrams 1902-5-4 2423 San Mateo Woodside Comment
  POM53405  Microseris douglasii subsp. tenella C. F. Baker 1902-5-4 755 San Mateo Woodside. Comment
  RSA184976  Microseris douglasii subsp. tenella L. S. Rose 1966-5-2 66037 -B San Mateo Emerald Lake, west of Redwood City. 91 Comment
  SBBG27936  Microseris douglasii subsp. tenella L. S. Rose 1933-4-30 33129 San Mateo Redwood City Comment
  CAS-BOT-BC349140  Microseris douglasii subsp. tenella Kenton L. Chambers 1953-5-5 457 San Mateo Bayshore Hwy., 1.5 mi. n. of Dumbarton Bridge Road intersection Comment
  POM203100  Microseris douglasii subsp. tenella L. S. Rose 1933-4-30 33129 San Mateo Redwood City Comment
  CAS-BOT-BC349192  Microseris elegans R. E. Frenkel 1964-5-26 512 San Mateo On Portola Ridge Road, SFWD, 0.7 mile north of Sawyer Ridge Road 320 Comment
  CAS-BOT-BC27842  Microseris heterocarpa Albert Kellogg s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC322716  Microseris paludosa Kenton L. Chambers 1956-6-20 1049 San Mateo Pebble Beach near Pescadero Point between Highway 1 and the ocean Comment
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Jul 22 2020
  CAS-BOT-BC322718  Microseris paludosa Miss Patterson; Miss Wiltz 1907-6-1 297 San Mateo Pacific Grove, Monterey Peninsula Comment
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Jul 22 2020
  JROH4070  Mimulus aurantiacus var. aurantiacus W. R. Dudley 1895-6-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; top of Ridge near Searsville Dam Comment
  POM5073  Mimulus aurantiacus var. aurantiacus Stewart H. Burnham 1894-4-21 s.n. San Mateo [Unspecified] Comment
  RSA130970  Mimulus aurantiacus var. aurantiacus W. R. Dudley 1895-6-14 s.n. San Mateo Top of ridge near Searsville Dam. Comment
  RSA420293  Mimulus aurantiacus var. aurantiacus Paul C. Silva 1948-1-31 2628 San Mateo Old La Honda Grade, 1 mile south of Skyline Blvd. 457 Comment
  UC885697  Mimulus aurantiacus var. aurantiacus E. W. Rust 1907-4-27 127 San Mateo vicinity Stanford University; King's Mountain 213 Comment
  RSA164764  Mimulus aurantiacus var. aurantiacus Wesley O. Griesel 1963-6-20 814 San Mateo Road from Palo Alto to State Hwy #5 Comment
  RSA53515  Mimulus glaucescens Edward L. Greene s.n. San Mateo Crystal Springs Lake. Frequent along banks, specially shady places. Comment
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Jul 13 2018
  UCD164332  Mimulus guttatus Peter Rubtzoff 1976-6-30 8705 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Westernmost part of the area on a slope across fence. Comment
  JROH4086  Mimulus guttatus Duncan M. Porter 1961-4-8 750 San Mateo Jasper Ridge Biological Preserve, Stanford University; below large meadow on crest of ridge Comment
  UCD122715  Mimulus microphyllus R. S. Woglum 1935-5-25 996 San Mateo King City-Coalinga, along State Highway 198. Comment
  CAS-BOT-BC388831  Minuartia douglasii Ned Cahill 1974-4-19 148 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  POM308671  Minuartia douglasii Florence Danforth 1943-5-7 2388 San Mateo Jasper Ridge, above Searsville Lake. Comment
  JROH1707  Minuartia douglasii Ruth Porter 1991-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Area C Comment
  JROH1708  Minuartia douglasii John Hunter Thomas 1991-5-2 25011 San Mateo Jasper Ridge Biological Preserve, Stanford University; near exclosure Comment
  CAS-BOT-BC214065  Monardella villosa Phillip C. Wheeler 1965-5-11 s.n. San Mateo Southwest canyon below NBC Tower, San Bruno Mountain Comment
  CAS-BOT-BC214070  Monardella villosa Charles Piper Smith 1908-5-31 1444 San Mateo San Mateo Canyon 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-BC214078  Monardella villosa Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo Quarry 4, San Bruno Mountain Comment
  CAS-BOT-BC220664  Monardella villosa Y. Henderson 1920-5-31 s.n. San Mateo Searsville Comment
  UCD125292  Monardella villosa J. M Tucker 1951-8-6 2219 San Mateo On northwest-facing hillslope; M. R. Mattei ranch, ca. 1.5 miles northeast of Pescadero. Comment
  SEINET10829418  Monardella villosa subsp. franciscana A. Graff 1993-7-13 Graff 182 San Mateo Devil's Slide, in arroyos on inland side of Hwy. 1. Mostly past bloom. Coastal scrub. Comment
  SEINET10862297  Monardella villosa subsp. franciscana A. Graff 1993-6-14 Graff 3 San Mateo 0.37 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
  RSA0022802  Monardella villosa subsp. subserrata E. S. Spalding 1923-8-3 s.n. San Mateo Near Pulgas Tunnel. Comment
  JROH2843  Monardella villosa subsp. villosa John Hunter Thomas 1980-6-5 19995 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2845  Monardella villosa subsp. villosa John Hunter Thomas 1981-6-4 20671 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET892709  Monardella villosa subsp. villosa Lewis S. Rose 1950-1 50135 San Mateo Emerald Lake region, hills west of Redwood City 243 Comment
  CAS-BOT-BC327790  Monolopia gracilens James McMurphy 1909-5-25 s.n. San Mateo La Honda Comment
  JROH1157  Monolopia gracilens Oz Garton 1968-4-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  UC50083  Monolopia gracilens J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  UCSC007765  Morella californica Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  RSA18201  Myosotis latifolia C. B. Wolf 1929-5-25 3735 San Mateo 2 miles from Pescadero on Alpine Creek. Comment
  RSA784399  Myosotis latifolia Peter Rubtzoff 1978-6-4 9203 San Mateo San Bruno Mountains: Saddle area on N side of Guadalupe Canyon Parkway W of Radio Road junction. Comment
  RSA0038439  Myosotis sylvatica W. M. Arbaugh 1968-4-10 227 San Mateo Butano State Park. 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
  JROH2694  Myriophyllum aquaticum John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1236536  Myriophyllum spicatum J. H. Thomas 1955-12-6 5513 San Mateo 5 and 10 feet deep at the southern end of San Andreas Lake. Comment
  JROH5836  Narcissus pseudonarcissus Ann Lambrecht 2007-3-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Planted in Old Garden near Douglas Iris site off Trail 20 toward San Francisquito Creek Comment
  RSA128469  Nassella lepida J. T. Howell 1952-5-28 28316 San Mateo Crystal Springs Lake. Comment
  RSA187301  Nassella pulchra John H. Thomas 1964-4-12 10311 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH3204  Navarretia heterodoxa John Hunter Thomas 1983-6-29 22705 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC856873  Navarretia heterodoxa Lewis S. Rose 1941-6-12 41269 San Mateo hills w Redwood City; Emerald Lake 121 Comment
  RSA42950  Navarretia heterodoxa R. C. Bacigalupi 1947-6-4 2821 San Mateo Back of San Carlos Comment
  SD38213  Navarretia squarrosa Edith A. Purer 1933-7-27 5346 San Mateo Partially stabilized sand dunes near Pigeon Point Comment
  POM282334  Navarretia squarrosa Lyman Benson 1932-7-11 3929 San Mateo Stanford University, Santa Cruz Mountain range, San Francisquito Creek watershed 152 Comment
  RSA17967  Navarretia viscidula C. B. Wolf 1927-8-13 712 San Mateo Summit La Honda Grade, Santa Cruz Mountains Comment
  UC24258  Nemophila menziesii var. atomaria Ivar Tidestrom 1894-3-22 San Mateo Comment
  SBBG41706  Nemophila parviflora J. T. Howell 1971-4-12 San Mateo Butano St Park, Santa Cruz Mtns Comment
  CAS-BOT-BC219481  Nemophila parviflora W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Moores, Pescadero Creek, Spring Valley Co. Property Comment
  JROH2742  Nemophila parviflora var. parviflora H. R. Davis 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Zoology Club shack Comment
  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
  JROH4170  Nicotiana acuminata var. multiflora John Rawlings, Ann Lambrecht 2007-11-7 0911 San Mateo Jasper Ridge Biological Preserve, Stanford University. 115 Comment
  CAS-BOT-BC233463  Nicotiana glauca J. H. Thomas 1964-3-31 10293 San Mateo Bank of San Francisquito Creek at University Avenue Bridge, Palo Alto Comment
  CAS-BOT-BC389684  Oemleria cerasiformis Jeanie Nieri 1953-1-31 s.n. San Mateo Huddart Park 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
  JROH3708  Oemleria cerasiformis John H. Thomas 1968-5-17 14184 San Mateo Jasper Ridge Biological Preserve, Stanford University. Brush slope at arm of Lake Comment
  UC12459  Oemleria cerasiformis J. Burtt Davy 1893-6-22 San Mateo Pilarcitos Creek Comment
  UC860384  Oemleria cerasiformis S. B. Show 1907-2-18 8 San Mateo San Francisquito Creek 213 Comment
  UCD23290  Oemleria cerasiformis Alan T. Whittemore 1976-5-29 102 San Mateo Intersection of Polyhemus Creek Road and Ticonderoga Street, San Mateo. 140 Comment
  POM132876  Oenanthe sarmentosa A. D. E. Elmer 1903-07 4690 San Mateo Alpine School House. Comment
  RSA210940  Oenothera elata subsp. hookeri E. K. Balls 1969-9-16 12176 San Mateo Highway 1-13 mi. NW from Santa Cruz County line 6 Comment
  JROH2991  Olea europaea John H. Thomas 1976-4-19 18085 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  RSA136184  Ornithopus sativus John H. Thomas 1956-7-2 6039 San Mateo Along Graham Hill Road, 1.9 miles from Felton RR Station. 183 Comment
  JROH3087  Orobanche John Hunter Thomas 1991-12-28 25118 San Mateo Jasper Ridge Biological Preserve, Stanford University; Rattlesnake Rocks along path to redwoods Comment
  JEPS26313  Orobanche californica subsp. californica Wayne Roderick 1961-8-20 San Mateo Bean Hollow State Beach; below south entrance of San Mateo State Park, about 2 miles south of Pescadero turn-off. Comment
  CAS-BOT-BC499694  Orobanche californica subsp. californica J. H. Thomas 1979-7-31 19684 San Mateo San Bruno Mountain, in northern part of county. Upper portion of Reservoir Hill, NE of Guadalupe Parkway Comment
  JROH3088  Orobanche uniflora John H. Thomas 1968-5-3 14444 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA401985B  Orthocarpus densiflorus Francis W. Pennell, D. D. Keck 1940-5-15 25425 San Mateo Route 101, 4 miles west of Burlingame. 152 Comment
  RSA401986B  Orthocarpus densiflorus D. D. Keck 1932-5-6 1470 San Mateo One mile south of San Mateo, on US Hwy 101. Comment
  RSA92815  Orthocarpus densiflorus Peter H. Raven 1950-4-16 1776 San Mateo Colma Canyon, San Bruno Mountains. 183 Comment
  POM286519  Orthocarpus lithospermoides Arthur L. Cohen 1935-4-21 636 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  RSA88573  Orthocarpus lithospermoides L. S. Rose 1954-5-17 54043 San Mateo Emerald Lake, E of Redwood City. 183 Comment
  SEINET12288880  Orthocarpus lithospermoides Unknown 1932-1 9105 San Mateo above Spring Valley Lakes Comment
  HSC23966  Osmorhiza berteroi Mary Katherine Wicksten 1971-6-17 74 San Mateo Huddart Park, along Chickadee Trail Comment
  POM287588  Osmorhiza berteroi Lyman Benson 1930-5-3 2115 San Mateo Woods, above Woodside, Santa Cruz Mtns. 366 Comment
  RSA152259  Osmorhiza berteroi I. L. Wiggins 1925-04 1681 San Mateo First bridge across small creek on Kings Mountain Road above Woodside Comment
  CAS-BOT-BC166716  Oxalis albicans subsp. pilosa Peter Rubtzoff 1975-5-21 7979 San Mateo San Bruno Mountains. Saddle area north of Guadalupe Canyon Parkway and west of Radio Road junction. Comment
  CDA28462  Oxalis corymbosa H. Struffenegger, J. Reppas 1974-1-9 San Mateo Podesta Nursery, 1951 Pulgas Avenue, East Palo Alto. 0 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
  POM278936  Oxalis oregana Lyman Benson 1931-2-27 2616 San Mateo Woodside, Santa Cruz mountains, San Francisquito Creek watershed, Kings Mt Road 183 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
  RSA130345  Oxalis oregana Roxana Stinchfield 1914-2-28 s.n. San Mateo Hills back of Woodside Comment
  UC1057442  Oxalis pes-caprae G. Thomas Robbins 1937-4-11 72 San Mateo just s San Fancisco (Skyline Boulevard) Comment
  CAS-BOT-BC253972  Parapholis incurva V. F. Hesse 1964-5-26 3210 San Mateo Near (S of) Pigeon Point 15 Comment
  JROH4117  Pedicularis densiflora John Hunter Thomas 1981-5-25 20631 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4118  Pedicularis densiflora John Hunter Thomas 1982-1-3 20794 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI9314  Pedicularis densiflora Lewis S. Rose 1964-3-23 64013 San Mateo Emerald Lake, W of Redwood City 122 Comment
  POM286384  Pedicularis densiflora Lyman Benson 1931-2-28 2610 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  RSA130980  Pedicularis densiflora A. M. Patterson 1907-4-27 s.n. San Mateo Kings Mt. Santa Cruz Peninsula. Comment
  RSA130343  Pedicularis densiflora H. A. Lewis 1908-4-30 s.n. San Mateo Los Trancos. Comment
  SEINET5564051  Pedicularis densiflora H. S. Gentry 1931-1 15 San Mateo Collected 1.5 miles W of San Mateo, Half-Moon Bay Road. Comment
  RSA130986  Pedicularis dudleyi W. R. Dudley 1903-5-2 s.n. San Mateo Bank near fork of road to Old Page Mill Comment
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Feb 18 2016
  UCSC006899  Pedicularis dudleyi Randall Morgan 1988-6-5 1236 San Mateo Upper Escape Rd, Portola S.P. Comment
  CAS-BOT-BC207021  Pelargonium vitifolium L. R. Abrams; I. L. Wiggins 1939-6-3 437 San Mateo 2 miles north of Pigeon Point Lighthouse Comment
  CAS-BOT-BC265731  Pennisetum villosum John H. Thomas 1969-6-6 15517 San Mateo Menlo Park, near El Camino and Cambridge Comment
  UC197089  Pentachaeta alsinoides E. L. Greene 1886-5-9 San Mateo Belmont Comment
  JROH1161  Pentachaeta alsinoides John Hunter Thomas 1989-4-20 24639 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC330496  Pentachaeta bellidiflora Ned Cahill 1974-4-29 205 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC330497  Pentachaeta bellidiflora Ned Cahill 1974-4-19 154 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. 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
  CAS-BOT-BC384617  Pentagramma triangularis J. Lovelle 1973-8-5 36 San Mateo Mt. Ellen Trail Comment
  JROH3242  Persicaria amphibia Le Roy Abrams 1900-10-1 1002 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  JROH3254  Persicaria amphibia M. Whitley 1990-5-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat ramp Comment
  CAS-BOT-BC418849  Persicaria hydropiperoides Roxana S. Ferris 1920-9-3 2047 San Mateo Santa Cruz Mountain Peninsula. 2nd Mud Lake, Coal Mine Ridge Comment
  JROH3273  Persicaria lapathifolia John Hunter Thomas 1979-9-9 19720 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC413765  Persicaria lapathifolia W. R. Dudley 1897-10-11 s.n. San Mateo Santa Cruz Peninsula. Toward Pilar Pt. Comment
  JROH3284  Persicaria punctata John Hunter Thomas 1981-7-12 20695 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC330252  Petasites frigidus var. palmatus A. W. Herre; Ira L. Wiggins 1939-3-25 19 A San Mateo Headwaters of Pescadero Creek, about 8 miles N of Big Basin Redwood Park Comment
  JEPS37161  Petasites frigidus var. palmatus James G. Daly 232 San Mateo San Gregorio watershed Santa Cruz Mts. Comment
  UC1301047  Petasites frigidus var. palmatus Helen K. Sharsmith 1963-3-23 5249 San Mateo Alpine Creek Canyon San Francisco Bay Region, Santa Cruz Mountains 243 Comment
  RSA120041  Petunia parviflora W. R. Dudley 1909-10-31 s.n. San Mateo Searsville Lake. The Santa Cruz Mtn Peninsula. Comment
  POM65455  Phacelia californica A. D. E. Elmer 1903-04 4855 San Mateo Crystal Springs Lake. Comment
  SEINET12280043  Phacelia californica Unknown 1932-1 8996 San Mateo Between Sky Line Drive and Half Moon Bay Comment
  SEINET5566300  Phacelia californica H. S. Gentry 1931-1 102 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  SBBG32291  Phacelia distans L. S. Rose 1963-5-23 San Mateo Thornton Beach Park 30 Comment
  UCD120425  Phacelia distans Lewis S. Rose 1963-5-23 63060 San Mateo Thornton Beach Park. 30 Comment
  UC735096  Phacelia imbricata subsp. imbricata Lincoln Constance 1946-6-7 3077 San Mateo Skyline Drive about 2 mi sw Portola 457 Comment
  UC909979  Phacelia nemoralis subsp. nemoralis Lewis S. Rose 1939-6-16 39281 San Mateo Skyline Blvd. above Woodside 563 Comment
  JROH2763  Phacelia rattanii John H. Thomas 1961-6-7 9530 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2765  Phacelia rattanii D. E. Breedlove 1971-5-11 19332 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Pinon Road along fence Comment
  CHSC56636  Phalaris aquatica Steven Triano 1988-5-24 176 San Mateo On the sw corner of the jct. of Portola Road and Old La Honda Road, ca 3.2 mi s of Woodside. 115 Comment
  CAS-BOT-BC258999  Phalaris californica 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-BC259010  Phalaris californica Ned Cahill 1974-7-14 363 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC251002  Phyllostachys bambusoides Elizabeth McClintock; Paul Reeberg 1988-4-27 s.n. San Mateo San Bruno Mountains. 40 feet up trail from GCP towards Old Quarry in Colma Canyon, on south side of trail 91 Comment
  CAS-BOT-BC142179  Physocarpus capitatus A. D. E. Elmer 1903-7-1 4804 San Mateo Portola Comment
  CAS-BOT-BC142186  Physocarpus capitatus Walter Knight 1963-6-24 s.n. San Mateo Quarry 4 - San Bruno Mountain Comment
  CAS-BOT-BC142187  Physocarpus capitatus James McMurphy 1902-5-11 s.n. San Mateo San Francisquito Creek Comment
  JROH3733  Physocarpus capitatus John Hunter Thomas 1986-5-1 23988 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low flow crossing along San Francisquito Creek Comment
  RSA176725  Physocarpus capitatus John H. Thomas 1962-7-15 9915 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  RSA19297  Pickeringia montana var. montana L. S. Rose 1937-5-23 37321 San Mateo Belmont 91 Comment
  CAS-BOT-BC158326  Piperia Peter Rubtzoff; Randall Morgan 1987-8-28 9847 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC136528  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-BC137313  Piperia elegans Peter Rubtzoff 1951-10-2 812 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
  UCSC008349  Piperia elegans subsp. elegans Randall Morgan 1991-7-27 1996 -P San Mateo Pacifica, Rockaway Beach Comment
  RSA594927  Piptatherum miliaceum John H. Thomas 1962-6-6 9907 San Mateo Near Palo Alto airport Comment
  CAS-BOT-BC228123  Plagiobothrys chorisianus E. L. Greene 1902-3-30 429 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC228134  Plagiobothrys chorisianus Edward Lee Greene 1886-5-10 s.n. San Mateo Belmont Comment
  RSA128819  Plagiobothrys chorisianus L. R. Abrams 1909-4-27 s.n. San Mateo Santa Cruz Mountain peninsula, near Crystal Springs Lake Comment
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Dec 2 2007
  UC200768  Plagiobothrys chorisianus C. F. Baker 1902-3-30 429 San Mateo Crystal Springs Lake Comment
  UC24559  Plagiobothrys chorisianus Alice Eastwood Apr 1896 San Mateo Crystal Springs Comment
  UC78191  Plagiobothrys chorisianus Mrs. K. Brandegee 1890-5-22 San Mateo La Honda Comment
  RSA128818  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1896-4-4 s.n. San Mateo Near Crystal Springs Lake Comment
  CAS-BOT-BC228165  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1893-5-2 s.n. San Mateo Between Kings Mountain and La Honda below Haymans Ranch Comment
  CAS-BOT-BC228170  Plagiobothrys chorisianus var. hickmanii David D. Keck 1938-5-30 4728 San Mateo Pescadero, on bluffs overlooking the ocean Comment
  JROH1409  Plagiobothrys chorisianus var. hickmanii John H. Thomas 1967-4-28 12726 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1414  Plagiobothrys chorisianus var. hickmanii D. E. Breedlove 1971-5-5 19327 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
  JROH1425  Plagiobothrys nothofulvus John H. Thomas 1970-4-4 15542 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA8609  Plagiobothrys nothofulvus I. L. Wiggins 1933-4-17 6651 San Mateo Emerald lake Hills 2 miles W of Redwood City. Comment
  UC24581  Plagiobothrys undulatus J. Burtt Davy Jun 21-23 1893 1136 San Mateo Pilarcitos Lake; Pilarcitos Canyon Comment
  UCD124413  Plantago elongata June McCaskill 1954-5-8 293 San Mateo Moss Beach. Comment
  JROH3108  Plantago erecta John H. Thomas 1956-4-7 5616 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  JROH3116  Plantago erecta John Hunter Thomas 1980-5-6 19929 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3120  Plantago erecta John Hunter Thomas 1982-4-28 20871 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB17043  Plantago erecta Schulte, John 1963-4-14 San Mateo Jasper Ridge; 3 miles SW of Stanford University; between Santa Clara Valley and Santa Cruz Mountains 152 Comment
  RSA246718  Plantago hirtella var. galeottiana Robert F. Thorne, Percy C. Everett 1965-8-1 35073 San Mateo 21.5 miles S of Golden Gate Bridge. 69 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
  JROH3133  Plantago major John H. Thomas 1959-8-22 8082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD164599  Plantago major Peter Rubtzoff; Roman Gankin 1975-9-11 8371 San Mateo San Bruno Mountains. Pond NW of and across old Guadalupe Road from 'Saddle' area (which is located on N side of Guadalupe Canyon Parkway, W of Radio Road junction). Comment
  JEPS4905  Plantago subnuda G. Thomas Robbins 1953-8-29 3616 San Mateo 1.5-2.0 mi s San Francisco City and County line (along State Highway 1) Comment
  CAS-BOT-BC92011  Platystemon californicus H. A. Dutton 1900-4-17 s.n. San Mateo Santa Cruz Peninsula. Comment
  CAS-BOT-BC92019  Platystemon californicus George Oberlander 1950-4-2 597 San Mateo San Francisco Watershed Reserve. Grassland about Lower Crystal Spring Lake. Comment
  UC890314  Plectritis brachystemon Alice Eastwood 1912-6-10 326 San Mateo Crystal Springs Comment
  UC912455  Plectritis brachystemon Herbert L. Mason 1927-4-23 3689 San Mateo between La Honda and Pescadero Creek Comment
  JROH4245  Plectritis congesta subsp. brachystemon John Hunter Thomas 1981-4-23 20490 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC27137  Plectritis congesta subsp. nitida Amos Arthur Heller 1907-5-28 8578 San Mateo Above Crystal Springs on the Half Moon Bay road Comment
  POM88008  Plectritis congesta subsp. nitida L. R. Abrams 1902-5-11 2457 San Mateo Crystal Springs. Comment
  POM284728  Plectritis macrocera subsp. macrocera Arthur L. Cohen 1935-4-21 635 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  UC188935  Poa annua Michener apr. 1891 118 San Mateo San Bruno Rd Comment
  UCD163746  Poa annua Peter Rubtzoff 1988-5-3 9911 San Mateo San Bruno Mountain, 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road in the northwest part of the 'Saddle' area, east of Saddle Trail Junction. Comment
  CAS-BOT-BC254541  Poa douglasii J. H. Thomas 1963-5-20 10155 San Mateo At Ano Nuevo Point Comment
  JEPS112938  Poa douglasii Dean W. Taylor 2002-3-20 17956 San Mateo Franklin Point, in dune sand just inland from the actual point 3 Comment
  CAS-BOT-BC246707  Poa howellii Ira L. Wiggins 1928-4-14 2908 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC246711  Poa howellii Margaret A. Barry 1937-5-15 93 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC173840  Poa pratensis Peter Rubtzoff 1976-5-22 8544 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC243121  Poa secunda subsp. secunda Margaret A. Barry 1937-5-1 38 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC244244  Poa unilateralis A. D. E. Elmer 1900-4-1 2393 San Mateo Spanishtown Comment
  UCD92154  Poa unilateralis R. L. Pendleton 1907-4-20 616 a San Mateo Lake Merced. 91 Comment
  JROH2859  Pogogyne serpylloides John H. Thomas 1976-4-30 18104 A San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2862  Pogogyne serpylloides John Hunter Thomas 1981-4-23 20493 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC232895  Polemonium carneum L. R. Abrams 1916-4-22 5576 San Mateo Santa Cruz Mountain Peninsula. Pilarcitos Canon Comment
  UC203050  Polemonium carneum A. D. E. Elmer July, 1903 4771 San Mateo Pilarcitos Stone Dam Comment
  JROH5584  Polygala californica John Rawlings 2013-5-28 1190 San Mateo Jasper Ridge Biological Preserve, Stanford University; in the vicinity of an abandoned camper shell near a small drainage on north side of main ridge 100 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
  UC1192322  Polygonum amphibium var. emersum Malcolm A. Nobs and S. Galen Smith 1949-8-26 1603 San Mateo along Hwy 1 0,.6 mi n Pigeon Point Comment
  CAS-BOT-BC413944  Polygonum aviculare subsp. aviculare Thomas R. Mertens 1963-9-28 6 San Mateo 1-2 miles north of Santa Cruz County line on State Highway 1 Comment
  JROH3265  Polygonum aviculare subsp. depressum John Hunter Thomas 1982-7-22 21087 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Saersville Lab. Comment
  JROH3263  Polygonum aviculare subsp. depressum John Hunter Thomas 1981-10-25 20765 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta. Comment
  POM280424  Polygonum coccineum Lyman Benson 1932-7-11 3930 San Mateo Stanford University, Lake border, Santa Cruz Creek, San Francisquito. 152 Comment
  CAS-BOT-BC109235  Polygonum paronychia John H. Thomas 1974-5-7 17323 San Mateo San Bruno Mountain. Along Guadalupe Parkway opposite school. Comment
  CAS-BOT-BC109245  Polygonum paronychia David D. Keck 1931-10-5 1288 San Mateo 1 mile north of Salada Beach. 200 m. from ocean. Comment
  UCR66558  Polygonum paronychia David D. Keck 1931-10-5 1288 San Mateo 1 mi north of Salada Beach 200 Comment
  JEPS50633  Polygonum persicaria W. L. Jepson 1923-10-18 10250 San Mateo hills w Colma (toward ocean) Comment
  CAS-BOT-BC76907  Polypodium californicum W. R. Dudley 1899-11-30 s.n. San Mateo Santa Cruz Mountain Peninsula - Pescadero Creek, near Iverson's Comment
  CAS-BOT-BC76913  Polypodium californicum Reed C. Rollins 1942-4-30 3014 San Mateo San Bruno Hills, 1 mile south of Daly City. Comment
  CAS-BOT-BC76914  Polypodium californicum John H. Thomas 1958-3-19 7059 San Mateo San Bruno Mountain, just north of South San Francisco. 91 Comment
  POM22457  Polypodium californicum C. F. Baker 1902-1-15 235 San Mateo West side of King s Mountain Comment
  SJSU8151  Polypodium californicum J. B. Mackenzie 1967-3-9 102 San Mateo headland by Arroyo de los Frijoles Beach c. 2 mi S of Pescadero Point. Comment
  JROH80  Polypodium californicum Lawrence J. Winship 1974-11-16 18 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH81  Polypodium californicum Lawrence J. Winship 1974-11-16 17 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UC766795  Polypodium calirhiza R. F. Hoover 1941-2-12 4759 San Mateo La Honda Creek above La Honda Comment
  UC42914  Polypodium scouleri J. Burtt Davy 1893-6-22 San Mateo top of Pilarcitos Canyon Comment
  JROH5427  Polypogon interruptus John H. Thomas 1959-8-22 8085 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along stream below dam. Comment
  JROH5428  Polypogon interruptus John H. Thomas 1961-6-14 9545 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along stream below dam. Comment
  UC767859  Polypogon interruptus R. F. Hoover 1940-9-1 4550 San Mateo La Honda summit Comment
  CAS-BOT-BC237345  Polypogon monspeliensis Ira L. Wiggins 1973-6-24 22019 San Mateo In bed of San Francisquito Creek, 50-60 m upstream from Pope Street Bridge, along boundary between San Mateo and Santa Clara counties Comment
  CAS-BOT-BC237351  Polypogon monspeliensis John H. Thomas 1963-7-19 10189 San Mateo Ano Nuevo Island, about 0.5 mile off shore about 20 miles NW of Santa Cruz Comment
  JROH5439  Polypogon monspeliensis H. J. Dengler 1961-7-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek not far from where it trends east from Jasper Ridge. Comment
  JROH5448  Polypogon monspeliensis John Hunter Thomas 1977-6-16 18785 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry lake bed Comment
  JROH5450  Polypogon monspeliensis John Hunter Thomas 1980-11-27 20189 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta. Comment
  SEINET200159 Image available Polypogon monspeliensis Malcolm A. Nobbs, S. Galen Smith 1949-8-25 1563 San Mateo Marshes at Sharp Park. Comment
  UCD91350  Polypogon monspeliensis Herbert L. Mason; Verne Grant 1946-8-28 13094 San Mateo On Highway 5, about 3 miles south of Daly City Road. Comment
  SEINET10593693  Polypogon monspeliensis Gordon H. True 1937-7-23 True 808 San Mateo North of Salada Beach. 30 Comment
  JROH4816  Polypogon viridis John Hunter Thomas 1982-7-2 21050 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing. Comment
  CAS-BOT-BC290617  Polystichum Peter Rubtzoff 1987-8-26 9844 San Mateo San Bruno Mountain, East Fork of Colma Creek Canyon. Comment
  CAS-BOT-BC72218  Polystichum dudleyi John H. Thomas 1961-5-23 9454 San Mateo Portola State Park, near junction of Peters and Pescadero Creeks 152 Comment
  CAS-BOT-BC72220  Polystichum dudleyi W. R. Dudley 1894-3-24 s.n. San Mateo Near bridge below La Honda Comment
  CAS-BOT-BC72227  Polystichum dudleyi Kate O. Sessions s.n. San Mateo unspecified Comment
  JROH49  Polystichum dudleyi Carol Zabel 2001-10-5 45 San Mateo Jasper Ridge Biological Preserve, Stanford University. Off Trail 1 on south side San Francisquito Creek bank, just below redwood grove. From "redwood circle", go down incline to bank. Comment
  CAS-BOT-BC76605  Polystichum munitum Margaret Barry 1938-5-29 267 San Mateo Corte Madera Creek, near Coal Mine Ridge. Comment
  CAS-BOT-BC76648  Polystichum munitum Le Roy Abrams 1902-1-12 2256 San Mateo King's Mountain Comment
  RSA693315  Polystichum munitum C. B. Wolf 1928-3-14 1538 San Mateo La Honda grade in the Santa Cruz Mountains 152 Comment
  CAS-BOT-BC410033  Populus X parryi W. R. Dudley 1895-3-11 s.n. San Mateo San Fransicquito Creek, S of Railroad bridge Comment
  RSA195521  Populus trichocarpa John H. Thomas 1966-4-13 11557 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH5844  Potamogeton crispus P. Heiple, A. Lambrecht 2008-8-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  SEINET10501698  Potamogeton filiformis var. macounii Mary Susan Taylor 1978-8-30 Taylor 1875 San Mateo Comment
  CAS-BOT-BC267166  Potamogeton foliosus Ira L. Wiggins 1935-8-24 8159 A San Mateo In reservoir about 2 miles E of Half Moon Bay Comment
  UC652560  Potamogeton gramineus Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9292 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC453678  Potamogeton gramineus W. R. Dudley 1910-5-26 s.n. San Mateo Santa Cruz Mountain Peninsula. Coal Mine Ridge near Black Mountain Comment
  CAS-BOT-BC454002  Potamogeton pectinatus W. R. Dudley 1909-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. E. twin-pond near Mussel Rock. Comment
  SD39944  Potentilla anserina Edith A. Purer 1933-7-27 5365 San Mateo High stabilized sand dunes, but damp, Pigeon Point Comment
  JROH4676  Prosartes hookeri John Hunter Thomas 1985-4-25 23567 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC516354  Prosartes hookeri W. R. Dudley 1895-9-15 s.n. San Mateo Near Lumber Camp on El Corte de Madera Creek, Santa Cruz Peninsula Comment
  CAS-BOT-BC516361  Prosartes hookeri Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo, San Bruno Mountain Comment
  CAS-BOT-BC517388  Prosartes smithii E. W. Rust 1887-4-27 133 San Mateo Kings Mountain Comment
  CAS-BOT-BC517395  Prosartes smithii H. L. Mason 1917-4-1 s.n. San Mateo Kings Mountain Comment
  UCD164610  Prunella vulgaris var. lanceolata Peter Rubtzoff 1975-10-24 8430 San Mateo San Bruno Mountains.'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In East Fork Colma Creek canyon area. Comment
  CAS-BOT-BC158584  Prunus James McMurphy 1906-4-14 s.n. San Mateo Creek above Judge Allen's Comment
  CAS-BOT-BC158171  Prunus emarginata Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo San Bruno Mountain. Bitter-cherry [Bitter Cherry] Ridge Comment
  UC136492  Prunus emarginata C. F. Baker 1902-5-1 691 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC154499  Prunus ilicifolia Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo Buckeye Canyon Comment
  CAS-BOT-BC154504  Prunus ilicifolia A. D. E. Elmer 1903-7-1 4773 San Mateo Pilarcitos Stone Dam Comment
  UC12763  Prunus ilicifolia J. Burtt Davy 1893-6-17 San Mateo Belmont Comment
  CAS-BOT-BC154650  Prunus subcordata A. D. E. Elmer 1903-4-1 4533 San Mateo Portola Comment
  CAS-BOT-BC154657  Prunus subcordata W. R. Dudley 1904-4-10 s.n. San Mateo Alpine road, near the deep ravine bridge Comment
  CAS-BOT-BC154658  Prunus subcordata W. R. Dudley 1903-4-10 s.n. San Mateo N. of Dominico's Canyon E. of Searsville Reservoir Comment
  POM140358  Prunus subcordata L. R. Abrams 1901-03 1168 San Mateo Portola, Los Troncos Creek. Comment
  RSA112479  Prunus subcordata H. L. Mason 1921-3-9 s.n. San Mateo Near zoo, shack. At edge of Redwoods. Jasper Ridge. Comment
Read comments
Sep 19 2011
  SBBG33470  Prunus subcordata A. D. E. Elmer -Apr-1903 San Mateo Portola Comment
  OBI16449  Pseudognaphalium beneolens Lewis S. Rose 1966-8-15 66082 San Mateo Emerald lake, W of Redwood City 91 Comment
  CAS-BOT-BC356871  Pseudognaphalium californicum D. E. Breedlove 1974-5-13 36234 San Mateo Slopes San Pedro Valley Park, Pacifica 152 Comment
  JROH752  Pseudognaphalium californicum D. D. Davis 1903-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JROH764  Pseudognaphalium californicum John Hunter Thomas 1978-7-2 19245 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH780  Pseudognaphalium luteoalbum John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH785  Pseudognaphalium luteoalbum Toni Corelli 2006-8-16 324 San Mateo Jasper Ridge Biological Preserve, Stanford University. South of Road B, below Dennis Martin marker site 70 Comment
  SD30773  Pseudognaphalium luteoalbum Edith A. Purer 1933-8-13 5427 San Mateo Belmont, along roadside Comment
  SD27905  Pseudognaphalium microcephalum Carl B. Wolf 1927-8-13 715 San Mateo Woodside. Comment
  CAS-BOT-BC361573  Pseudognaphalium stramineum Saichi Kawahara 1968-6-15 437 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1 4 Comment
  HSC24038  Pseudognaphalium thermale Mary Katherine Wicksten 1971-6-17 55 San Mateo Huddart Park on Chickadee Trail Comment
  CAS-BOT-BC85912  Pseudotsuga menziesii James McMurphy 1906-3-9 s.n. San Mateo King's Mountain Comment
  JROH125  Pseudotsuga menziesii var. menziesii John H. Thomas 1970-1-1 15492 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH128  Pseudotsuga menziesii var. menziesii John Hunter Thomas 1983-4-28 21776 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1187  Psilocarphus tenellus John Hunter Thomas 1980-5-8 19948 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1188  Psilocarphus tenellus John Hunter Thomas 1983-4-14 21406 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB17193  Psilocarphus tenellus Schulte, John 1963-4-28 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC362021  Psilocarphus tenellus Elizabeth McClintock 1965-4-11 s.n. San Mateo San Bruno Mountain. Crocker Hills. Near Guadalupe Road Comment
  CDA36720  Puccinellia maritima Michael Perlmutter 2011-6-15 San Mateo Burlingame, Sanchez Marsh. 0 Comment
  UCD92957  Puccinellia maritima August L. Hormay 1932-5-29 s.n. San Mateo San Bruno. Comment
  RSA0082794  Pyrola aphylla H. L. Mason 1921-7-3 s.n. San Mateo Butano Ridge. Comment
  POM88668  Pyrrocoma racemosa L. R. Abrams 1901-09 2211 San Mateo Cooley Landing. Comment
  JROH2537  Quercus X jolonensis Lucile Roush 1917-10-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC104277  Quercus X morehus W. R. Dudley 1904-4-10 s.n. San Mateo Santa Cruz Mountain Peninsula, Goat Ranch Road near Alpine Road - Black Mt. Comment
  CAS-BOT-BC104278  Quercus X morehus W. R. Dudley 1910-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula, In a hollow W of the ridge road S of Muchados on the top of the Santa Cruz Mt., Marin Divide Comment
  SJSU16069  Quercus agrifolia Allen W. Jacobs 1936-12-8 32 San Mateo Found in Jasper Ridge. Comment
  UC1135331  Quercus agrifolia C. M. Belshaw 1935-1-25 1457 San Mateo 2.8 mi w Woodside (on King Mt Road); Santa Cruz Quad. 457 Comment
  UCD45079  Quercus agrifolia Jonh M. Tucker 1994-9-9 s.n. San Mateo Tree ca. 40 ft. tall. Huddart Park on NE factoring slope nr. Miwok Shelter. Ca. 1200 ft. elev. San Mateo County 365 Comment
  JROH2460  Quercus agrifolia var. agrifolia John H. Thomas 1971-4-25 15790 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2470  Quercus douglasii John H. Thomas 1955-5-6 5017 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH2538  Quercus douglasii Carol Zabel 2004-8-11 52 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 15 between Vestal's exclosure and intersection with Trail 16, north side of trail Comment
  CAS-BOT-BC94276  Quercus durata John H. Thomas 1969-10-19 15486 San Mateo near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  UC847969  Quercus durata Lewis S. Rose 1938-11-27 38314 San Mateo w of Redwood City; Emerald Lake 243 Comment
  JROH2486  Quercus durata var. durata John H. Thomas 1974-6-30 17462 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2490  Quercus durata var. durata John H. Thomas 1975-5-26 17906 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC100107  Quercus kelloggii Mary Katherine Wicksten 1971-8-20 128 San Mateo Huddart Park, above Oak Area Comment
  LA205320  Quercus kelloggii David D. Keck; 1932-3-6 1395 San Mateo Santa Cruz Mountains, La Honda road above Searsville Lake 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
  UC311547  Quercus kelloggii A. D. E. Elmer May 1903 4520 San Mateo Searsville Lake Comment
  UCD46742  Quercus kelloggii Edmond W. Holm 1993-11-26 s.n. San Mateo (Q. parvula var. shrevei (Muller) Nixon. California, San Mateo Co,; Huddart Park, near Miwok Picnic Area. Comment
  CAS-BOT-BC62892  Quercus lobata Paul Reeberg 1989-5-2 s.n. San Mateo Bitter Cherry Ridge, San Bruno Mountain 198 Comment
  POM270142  Quercus lobata Lyman Benson 1932-8-1 4032 San Mateo Stanford University, Santa Cruz Mt. Range, Corte Madera Creek watershed. 122 Comment
  UCD47142  Quercus parvula var. shrevei J. M. Tucker 1946-3-2 1372 San Mateo On hillside ca. 4 miles east of Pescadero, San Mateo County, California. 304 Comment
  CAS-BOT-BC134779  Quercus wislizeni John Thomas Howell 1971-4-12 47599 San Mateo Butano State Park Comment
  CAS-BOT-BC134786  Quercus wislizeni James McMurphy 1909-5-26 s.n. San Mateo La Honda Comment
  CAS-BOT-BC134787  Quercus wislizeni James McMurphy 1909-5-26 s.n. San Mateo San Bruno Mountainin northern part of county. 396 Comment
  HSC23883  Quercus wislizeni Mary Katherine Wicksten 1971-6-16 16 San Mateo Huddart Park, dry gully by horse ring Comment
  JROH2529  Quercus wislizeni var. frutescens Toni Corelli 2007-1-31 337 b San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 9 140 Comment
  SEINET209201  Ranunculus bloomeri Inez Smith 1915-3-15 San Mateo Hillsboro Comment
  SEINET3816595 Image available Ranunculus bloomeri Lewis S. Rose 1934-3-11 34051 San Mateo Visitacion Valley. Comment
  JROH5899  Ranunculus californicus L. Nordby 1982-4-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab. 178 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
  POM268422  Ranunculus californicus Arthur L. Cohen 1935-4-21 619 San Mateo Jasper Ridge, San Francisquito Creek. 122 Comment
  POM268423  Ranunculus californicus Arthur L. Cohen 1935-4-21 618 San Mateo Jasper Ridge, San Francisquito Creek. 122 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-BC378549  Ranunculus californicus var. californicus George Oberlander 1949-4-2 20 San Mateo San Francisco Watershed Reserve, grassland top of Sweeney Ridge Comment
  RSA0030883  Ranunculus californicus var. cuneatus Lyman Benson 1930-3-2 1947 San Mateo Moss Beach. 15 Comment
  POM269212  Ranunculus hebecarpus W. R. Dudley 1894-4-11 s.n. San Mateo slope near Menlo Park Comment
  RSA101003  Ranunculus lobbii George Oberlander 1950-3-18 s.n. San Mateo Upper Crystal Springs Lake, San Francisco Watershed Reserve Comment
  SBBG33475  Ranunculus lobbii A. D. E. Elmer -Apr-1903 4734 San Mateo Alpine School House Comment
  UC827645  Ranunculus orthorhynchus var. bloomeri Lewis S. Rose 1937-4-30 37241 San Mateo Brisbane 6 Comment
  JROH3501  Ranunculus uncinatus John Rawlings 2013-4-16 1144 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 1. 79 Comment
  POM283036  Rhamnus californica Lyman Benson 1934-7-29 6110 San Mateo Crystal Springs Lake; Mt. Range: Santa Cruz; Watershed: S. F. Bay. 152 Comment
  RSA7729  Rhamnus crocea Carl B. Wolf 1927-5-31 407 San Mateo Searsville Lake Comment
  UC592785  Rhamnus crocea unknown 1928-3-16 1540 San Mateo near Searsville Lake; Jasper Ridge Comment
  RSA10390  Rhamnus tomentella subsp. tomentella H. A. Barker 1926-5-15 603 San Mateo King Mt. Comment
  CAS-BOT-BC56667  Rhododendron occidentale A. D. E. Elmer 1903-6-1 4298 San Mateo Butano Creek Comment
  CAS-BOT-BC92488  Ribes aureum var. gracillimum James McMurphy 1906-4-4 s.n. San Mateo Creek above Judge Allen's, Santa Cruz Mountains. Comment
  UC11498  Ribes californicum J. Burtt Davy 1895-4-21 1058 San Mateo Pilarcitos Creek Comment
  UC204126  Ribes californicum A. D. E. Elmer March 1903 4683 San Mateo Portola Comment
  UC974953  Ribes californicum Lewis S. Rose 1937-3-14 37003 San Mateo Belmont 152 Comment
  JROH2649  Ribes californicum var. californicum John Hunter Thomas 1983-2-21 21280 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Escobar Gate Comment
  CAS-BOT-BC173081  Ribes divaricatum var. pubiflorum A. D. E. Elmer 1903-5-1 4511 San Mateo Searsville Lake Comment
  RSA0025024  Ribes divaricatum var. pubiflorum Roxana S. Ferris 1920-4-24 1956 San Mateo Peters Creek. 2 miles above Bridge. 305 Comment
  RSA0025027  Ribes divaricatum var. pubiflorum A. D. E. Elmer 1903-05 4511 San Mateo Searsville Lake Comment
  CAS-BOT-BC212821  Ribes menziesii W. R. Dudley 1894-7-7 s.n. San Mateo Top Bear Gulch Rd Comment
  CAS-BOT-BC212839  Ribes menziesii W. R. Dudley 1894-3-23 s.n. San Mateo By Canada Creek above Searsville Dam and below McDonough Ranch Comment
  UC11618  Ribes menziesii var. senile J. Burtt Davy 1895-4-20 1046 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC144649  Ribes sanguineum var. glutinosum W. R. Dudley 1904-3-1 62 San Mateo Corte de Madera Creek, Santa Cruz Mts Comment
  CAS-BOT-BC144639  Ribes sanguineum var. glutinosum Walter Knight 1964-9-14 828 San Mateo near summit Peak Mt. Comment
  SEINET3388620 Image available Rigiopappus leptocladus Lewis S. Rose 1933-4-30 33130 San Mateo Redwood City Comment
  JROH2207  Robinia pseudoacacia Carol Zabel 2007-4-30 66 San Mateo Jasper Ridge Biological Preserve, Stanford University; caretaker's garden area Comment
  JROH2208  Robinia pseudoacacia Ann Lambrecht 2007-9-5 32 San Mateo Jasper Ridge Biological Preserve, Stanford University; W bank of San Francisquito Creek, just downstream from confluence with Bear Creek Comment
  CAS-BOT-BC341025  Robinia pseudoacacia L. R. Abrams 1921-5-3 s.n. San Mateo Prop. Tallocks garden, Stanford University Comment
  POM65453  Romanzoffia californica A. D. E. Elmer 1903-05 4482 San Mateo Towards San Mateo; Crystal Springs Lake. Comment
  JROH1577  Rorippa curvisiliqua Ann Lambrecht, Toni Corelli 2004-9-15 14 San Mateo Jasper Ridge Biological Preserve, Stanford University. About 10 m E of Sand Hill Rd culvert 104 Comment
  POM144072  Rorippa palustris subsp. occidentalis C. F. Baker 1902-10-20 1856 San Mateo Searsville. Comment
  CAS-BOT-BC147620  Rosa californica L. R. Abrams 1914-6-2 5114 San Mateo Los Trancos Creek Comment
  CAS-BOT-BC147627  Rosa californica Elizabeth McClintock; Paul Reeberg 1988-4-30 s.n. San Mateo Buckeye Canyon Comment
  CAS-BOT-BC147628  Rosa californica Phillip Wheeler 1965-6-7 s.n. San Mateo Buckeye Canyon Comment
  CAS-BOT-BC146701  Rosa gymnocarpa John H. Thomas 1961-5-7 9284 San Mateo San Bruno Mountain in northern part of county 396 Comment
  RSA159405  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
  SEINET10736898 Image available Rosa gymnocarpa var. gymnocarpa Adolph D. E. Elmer Elmer 4923 San Mateo Pescadero. Comment
  NY415871  Rosa piscatoria A. D. E. Elmer 05 1903 4923 San Mateo Pescadero Comment
  RSA0005651  Rosa piscatoria A. D. E. Elmer 1903-05 4923 San Mateo Iverson's Place; on the Pescadero Creek. Comment
  CAS-BOT-BC156594  Rubus bifrons J. H. Thomas 1963-9-11 10263 A San Mateo San Bruno Mountain. Near intersection of Guadalupe Rd. and South Hill Blvd. Comment
  CAS-BOT-BC152832  Rubus parviflorus Josephine D. Randall 1907-7-28 345 San Mateo Iverson's near Peter's Creek - Santa Cruz Peninsula Comment
  CAS-BOT-BC152869  Rubus parviflorus Walter Knight; Irja Knight 1964-5-30 602 San Mateo Colma Creek - San Bruno Mountain Comment
  RSA51270  Rubus parviflorus var. velutinus Peter H. Raven 1950-4-30 51270 San Mateo Montara Mtns. Ca 1/2 mile N of Montara. 91 Comment
  CAS-BOT-BC156769  Rubus spectabilis Walter Knight; Irja Knight 1965-4-11 s.n. San Mateo From bank of Colma Creek. Colma Canyon Comment
  JEPS30401  Rubus spectabilis James B. Roof, Irja Knight 1963-4-24 San Mateo northwestern end San Bruno Mountain (Colma Canyon); Daly City, nw end of San Bruno Mountain, Colma Canyon Comment
  RSA112364  Rubus spectabilis var. franciscanus W. R. Dudley 1900-3-16 s.n. San Mateo By bridge over Pilarcitos Rd. (Spanishtown and San Mateo). Comment
  CAS-BOT-BC157084  Rubus ursinus C. F. B. 1902-1-15 246 San Mateo West side King's Mountain Comment
  CAS-BOT-BC157093  Rubus ursinus W. B. Duncan 1924-5-25 s.n. San Mateo Moss Beach Comment
  JEPS27370  Rubus ursinus Rimo Bacigalupi with Jim Roof and L. Heckard 1961-4-24 7630 San Mateo lateral ridge below and se of end of paved ridge-top road just e KRON television tower and station (Guadalupe Valley side of San Bruno Mountain summit); San Bruno Mountain summit, Guadalupe Valley side 304 Comment
  RSA101000  Rubus ursinus G. Oberlander 1949-4-9 25 San Mateo Pilarcitos Canyon. San Francisco Watershed Reserve. Comment
  RSA15290  Rubus ursinus Carl B. Wolf 1927-4-3 258 San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  CAS-BOT-BC422092  Rumex acetosella J. H. Thomas 1949-4-6 s.n. San Mateo About 4 miles south of Daly City. Comment
  RSA128689  Rumex acetosella Peter H. Raven 1950-6-3 2221 San Mateo along Millbrae Ave., Millbrae. 61 Comment
  CAS-BOT-BC421818  Rumex conglomeratus John H. Thomas 1960-6-25 8792 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. -7 Comment
  CAS-BOT-BC421572  Rumex crassus John H. Thomas 1963-5-20 10149 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  UC1101213  Rumex maritimus Malcolm A. Nobs and S. Galen Smith 1949-8-26 1590 San Mateo mouth of Pescadero Creek Pescadero Creek Comment
  UC202769  Rumex pulcher A. D. E. Elmer Jul 1903 4778 San Mateo Pilarcitos Stone Dam Comment
  JROH3311  Rumex pulcher John Hunter Thomas 1988-5-25 24490 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road near low flow crossing. Comment
  CAS-BOT-BC434133  Rumex transitorius Goodman 1918-7-23 s.n. San Mateo San Pedro Valley Comment
  UCD23435  Rupertia physodes Alan T. Whittemore 1976-5-31 135 San Mateo Alpine Road, near east end of Corte Madera Creek Trail. Mixed evergreen forest. Sequoia in sheltered spots. Acer, Quercus and Alnus in open areas and by stream. Flowers past, originally purple. Trailing on forest floor. Foliage with somewhat unpleasant odor. Comment
  UC1191408  Salicornia europaea Malcolm A. Nobs and S. Galen Smith 1949-8-27 1624 San Mateo e of Redwood City Comment
  UC1191409  Salicornia europaea Herbert L. Mason and Malcolm A. Nobs 1948-12-11 713 San Mateo Highway 101, near shore of bay, at Whipple Avenue intersection, Redwood City Redwood City Comment
  CAS-BOT-BC104050  Salix hindsiana Lewis S. Rose 1965-3-8 65003 San Mateo Searsville Lake 121 Comment
  JROH3870  Salix lasiandra var. lasiandra John H. Thomas 1968-5-17 14177 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU7516  Salix lasiandra var. lasiandra Lewis S. Rose 1965-3-8 65002 San Mateo Searsville Lake 121 Comment
  UCD111575  Salix lasiandra var. lasiandra Lewis S. Rose 1965-3-16 65007 San Mateo Searsville Lake. 121 Comment
  JROH3860  Salix lasiolepis W. R. Dudley 1903-4-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Wild Plum Canyon, Searsville Ridge Comment
  POM281339  Salix lasiolepis Lyman D. Benson 1931-2-28 2612 San Mateo Above Woodside, King's Mtn. Santa Cruz mtn range. San Francisco Bay watershed. 244 Comment
  CAS-BOT-BC108261  Salix lasiolepis var. bigelovii C. R. Ball; G. W. Hendry 1931-2-22 15 San Mateo In arroyo near San Gregoio Creek, 100 m. from ocean. Near sea level. Comment
  CAS-BOT-BC126479  Salix sitchensis W. R. Dudley 1902-4-26 s.n. San Mateo Alpine Road 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-BC126487  Salix sitchensis Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Colma Canyon Comment
  RSA169344  Salix sitchensis L. S. Rose 1964-3-14 64006 San Mateo Princeton. 6 Comment
  SD70996  Salsola soda William R. Anderson 1968-8-16 San Mateo Edge of salt marsh just above high tide line, west end of Dumbarton Bridge. Comment
  UC75017  Salvia columbariae C. F. Baker 1902-4-6 546 San Mateo Crystal Springs Lake Comment
  OBI13519  Salvia spathacea Lewis S. Rose 1965-5-3 65059 San Mateo San Bruno Mtn, Colma Cyn 61 Comment
  UC1219867  Salvia spathacea John H. Thomas 1961-5-7 9299 San Mateo San Bruno Mountain; n part of San Mateo County 304 Comment
  UC634908  Salvia spathacea H. L. Mason 1928-2-22 4160 San Mateo Mt. San. Bruno Comment
  CAS-BOT-BC290601  Sambucus Peter Rubtzoff 1987-8-26 9840 San Mateo San Bruno Mountain, Saddle area on N side of Guadalupe Canyon. Parkway west of Radio Road junction; northwestern part of the area along old Guadalupe Road. Upper part of East Fork Colma Creek Canyon. Comment
  RSA800280  Sambucus callicarpa Peter Rubtzoff 1988-6-9 9925 San Mateo San Bruno Mountains, upper part of East Fork Colma Creek Canyon. Comment
  RSA210942  Sambucus mexicana E. K. Balls 1969-9-18 12171 San Mateo 1 mile north of Skywood along Highway 84 from Woodside to junction with Highway 35 Comment
  CAS-BOT-BC246026  Sambucus nigra subsp. caerulea H. A. Dutton 1900-4-17 s.n. San Mateo Jasper Hill, Santa Cruz Peninsula Comment
  CAS-BOT-BC246027  Sambucus nigra subsp. caerulea A. D. E. Elmer 1903-7-1 4689 San Mateo Portola Comment
  HSC23950  Sambucus nigra subsp. caerulea Mary Katherine Wicksten 1971-6-17 23 San Mateo Huddart Park, along Rd. near Redwood Shelter. Comment
  JEPS127879  Sambucus nigra subsp. caerulea Adam C. Schneider 2013-5-17 143 San Mateo Crystal Springs Reservoir Comment
  CAS-BOT-BC236453  Sambucus racemosa subsp. racemosa Walter Knight; Walter Knight 1963-6-24 s.n. San Mateo Quarry 4, San Bruno Mountain Comment
  JEPS13391  Sambucus racemosa var. racemosa W. L. Jepson 1910-8-17 4157 San Mateo Tunitas Creek; near the sea Comment
  UC1123153  Sanicula arctopoides H. S. Yates 1935-2-3 5012 San Mateo 1/2 mi se of Pigeon Point 30 Comment
  SBBG32454  Sanicula arctopoides L. S. Rose 1965-3-25 65012 San Mateo N end San Bruno Mtns 121 Comment
  UCD127909  Sanicula arctopoides Lewis S. Rose 1965-3-25 65012 San Mateo San Bruno Mountains, north end. 121 Comment
  CAS-BOT-BC223323  Sanicula bipinnatifida A. D. E. Elmer 1903-4-1 4817 San Mateo Lake San Andreas Comment
  JROH325  Sanicula bipinnatifida John Hunter Thomas 1977-4-28 18561 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD127932  Sanicula bipinnatifida R. E. Dengler 1960-4-14 33 San Mateo Jasper Ridge, Stanford Biological Reserve. 121 Comment
  JROH328  Sanicula crassicaulis Ynez Henderson 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  JROH341  Sanicula crassicaulis John H. Thomas 1977-4-28 18562 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD166152  Sanicula crassicaulis Jack Major; M. Forde and S. Bamberg 1962-4-3 736 San Mateo Above Coastways Ranch on Finney Creek. (Exact location unknown. Coordinates estimated by label maker). Comment
  CAS-BOT-BC166810  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
  JEPS85232  Sanicula hoffmannii Roy E. Buck, James A. West, Roger Raiche 1984-7-29 510 San Mateo on nw-facing slope overlooking Cascade Ck. (e of ranch headquarters, ca 0.8 air km ne of CA Hwy 1, 3.3 air km ne of Point Ano Nuevo); Cascade Ranch 152 Comment
Read comments
Oct 12 2021
  NY406244  Sanicula serpentina A. D. E. Elmer 04 1903 4498 San Mateo Portola Comment
  CHSC45763  Satureja douglasii Steven Triano 1988-5-24 198 San Mateo Ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  UC1601281  Satureja douglasii Ira L. Wiggins 1929-7-4 3778 San Mateo 4 mi w La Honda (on hill road to Pescadero Beach) Comment
  RSA175250  Satureja douglasii Robert F. Thorne, P. Everett 1963-6-9 32244 San Mateo On top of San Bruno Mountain. 335 Comment
  JROH363  Scandix pecten-veneris John Hunter Thomas 1987-4-30 24217 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC283132  Schedonorus arundinaceus J. H. Thomas 1963-8-4 10235 San Mateo About 2.5 miles inland from San Gregorio along the highway Comment
  CAS-BOT-BC111605  Schoenoplectus californicus Herbert L. Mason; Verne Grant 1946-8-28 13092 San Mateo Pond, Highway 5, about 3 miles south of Daly City Road. Comment
  RSA135629  Schoenoplectus maritimus Roxana S. Ferris 1920-8-11 2037 San Mateo Santa Cruz Mountain Peninsula: End of Embarcadero Road, near Palo Alto Comment
  RSA32340  Schoenoplectus pungens Alice S. Mulford 1945-7-17 s.n. San Mateo Moss Beach Comment
  SEINET11754563  Schoenoplectus pungens E. A. Purer 1933-1 5391 San Mateo 2 mi S of Pigeon Point Comment
  CAS-BOT-BC111061  Scirpus microcarpus Malcom A. Nobs; Stanley Galen [S. Galen] Smith 1949-8-25 1559 San Mateo Marshes at Sharp Park. Comment
  CDA39140  Scirpus microcarpus I. J. Campbell 1959-4-16 s.n. San Mateo Quadro Ranch, Pescadero. 0 Comment
  JEPS62104  Scoliopus bigelovii Inez Smith March 1915 San Mateo Hillsboro Comment
  CAS-BOT-BC519013  Scoliopus bigelovii Lewis S. Rose 1964-2-6 64000 San Mateo Kings Mountain 609 Comment
  POM193871  Scoliopus bigelovii W. R. Dudley 1895-3-5 s.n. San Mateo Kings Mt.; Plants of the Santa Cruz Peninsula. Comment
  CDA7620  Scolymus hispanicus T. C. Fuller 1965-7-8 13755 San Mateo D. McBryde property, 140 Eleanor Drive, Woodside. 0 Comment
  CAS-BOT-BC243516  Scribneria bolanderi John H. Thomas 1971-5-2 15869 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
Read comments
Jan 19 2018
  JEPS127846  Scrophularia californica Adam C. Schneider 2013-4-7 84 San Mateo Comment
  RSA131004  Scrophularia californica Deborah Hichborn 1920-4-20 s.n. San Mateo Near San Francisquito Creek. Santa Cruz Mountain Peninsula. Comment
  UC25840  Scutellaria tuberosa Maclean 1027 San Mateo near Pescadero Comment
  CAS-BOT-BC59270  Sedum spathulifolium W. R. Dudley 1894-4-1 s.n. San Mateo San Mateo Reservoir. Comment
  CAS-BOT-BC363397  Senecio aronicoides Fred Hemphill 1973-5-6 784 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC363396  Senecio aronicoides Le Roy Abrams 1901-5-11 1612 San Mateo Colma Comment
  RSA0012700  Senecio aronicoides C. F. Baker 1903-4-6 1900 San Mateo San Bruno Hills, San Francisco. [San Mateo] Comment
  CAS-BOT-BC363736  Senecio hydrophilus Le Roy Abrams 1901-9-1 2220 San Mateo Menlo Park, borders of S.F. Bay Comment
  CAS-BOT-BC363737  Senecio hydrophilus George Oberlander 1950-5-28 994 San Mateo San Francisco Watershed Reserve. Upper Crystal Springs Lake Comment
  CAS-BOT-BC363759  Senecio integerrimus L. Roush; G. Kimber 1918-5-7 s.n. San Mateo Sandstone Quarry Comment
  CAS-BOT-BC364639  Senecio vulgaris Elizabeth McClintock 1964-4-17 s.n. San Mateo San Bruno Mountain. At top of mountain Comment
  CAS-BOT-BC80296  Sequoia sempervirens W. R. Dudley 1895-10-19 s.n. San Mateo By Summit Spr. Road, King's Mt. Comment
  RSA157753  Sequoia sempervirens I. L. Wiggins 1925-04 1659 San Mateo On Kings Mtn Road three fourths of a mile above Woodside. 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
  UC118916  Sequoia sempervirens C. F. Baker 1902-1-15 319 San Mateo w side of King's Mountain Coast Range, King's Mountain Comment
  UCSB11437  Sequoia sempervirens Olson, Jim 1962-4-15 San Mateo 8 miles north of junction with Portola State Park Road on Camp Pomponio Road, 10 miles southwest of La Honda 213 Comment
  SEINET8057876 Image available Sequoia sempervirens M. E. Springer 1946-1 735 San Mateo Skyline Blvd. near La Honda Comment
  UCD23457  Sherardia arvensis E. A. Parzail 1949-8-1 s.n. San Mateo 1144 Cortez Avenue, Burlingame. Comment
  SD39294  Sidalcea diploscypha McCallum 1933-5-30 3706 San Mateo Spring Valley Comment
  SEINET7097929  Sidalcea malviflora 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
  JEPS127779  Sidalcea malviflora subsp. laciniata Adam C. Schneider with C. Matt Guilliams 2013-3-9 32 San Mateo Comment
  JEPS48780  Sidalcea malviflora subsp. laciniata James G. Daly 1934-1 211 San Mateo branch of La Honda Canyon Santa Cruz Mts., , La Honda Canyon (San Gregorio Watershed) Comment
  POM282903  Sidalcea malviflora subsp. malviflora Lyman Benson 1931-3-3 2620 San Mateo Moss Beach. 15 Comment
  SD67293  Sidalcea malviflora subsp. malviflora Darley F. Howe 1967-4-13 4343 San Mateo Pebble Beach Comment
  CHSC22898  Sidalcea malviflora subsp. rostrata Robert A. Schlising 1963-2-23 2434 San Mateo California Coast Ranges. 21 miles north of Davenport, along highway 1. Comment
  JROH1735  Silene gallica John Hunter Thomas 1978-4-20 19085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC386849  Silene gallica Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain, slope above Hillside Blvd., South San Francisco Comment
  CAS-BOT-BC386856  Silene gallica Paul Arnaud 1941-4-17 s.n. San Mateo Redwood City, Jefferson Avenue. Comment
  CAS-BOT-BC386857  Silene gallica Margaret Barry 1937-5-15 144 San Mateo on Coal Mine Ridge Comment
  CAS-BOT-BC386858  Silene gallica H. A. Dutton 1900-4-29 s.n. San Mateo Woodside Serpentine Comment
  JROH1740  Silene gallica John Hunter Thomas 1986-4-24 23978 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Escobar Gate Comment
  CAS-BOT-BC389199  Silene laciniata subsp. californica Josephine D. Randall 1907-7-24 30 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  CDA3478  Silene pseudatocion A. Jillson 1961-3-9 San Mateo Pacifica property, Redwood City. 0 Comment
  CAS-BOT-BC389891  Silene scouleri subsp. scouleri Phillip C. Wheeler 1965-6-21 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  JROH1231  Silybum marianum John H. Thomas 1967-5-31 12931 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC75350  Sisymbrium officinale Reed C. Rollins 1941-2-23 2941 San Mateo Roadside, about 10 miles south of San Francisco. Comment
  CDA3853  Sisymbrium officinale W. Plummer 1971-7-9 San Mateo Dick Bulles property, Alpine Creek, Pescadero . 0 Comment
  JROH4442  Sisyrinchium bellum John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD227685  Sisyrinchium bellum G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3746 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek. 106 Comment
  SEINET4171036  Sisyrinchium bellum Unknown 1925-3-17 San Mateo Burlingame Comment
  UCD138874  Sisyrinchium bellum R. E. Dengler 1960-4-12 24 San Mateo on northeast side of ravine, Jasper Ridge, Stanford Biological Reserve. 129 Comment
  UCSB18427  Sisyrinchium bellum Muirhead, M. 1964-4-17 San Mateo Crocker Estate; Hillsborough 76 Comment
  CAS-BOT-BC176179  Sisyrinchium californicum Peter Rubtzoff 1975-5-21 7969 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UC1084412  Smilacina racemosa G. Thomas Robbins 1937-4-11 110 San Mateo hillside above Redwood City Comment
  UC518005  Smilacina stellata Lewis S. Rose 1933-4-9 33070 San Mateo Belmont Comment
  POM209654  Solanum douglasii D. D. Keck 1934-7-7 2970 San Mateo Ano Nuevo Point at Ano Nuevo Creek. Comment
  SJSU15426  Solanum physalifolium var. nitidibaccatum Toni Corelli 2011-8-25 707 San Mateo Ano Nuevo State Park, along Hwy. 1 south of main entrance 30 Comment
  JROH4186  Solanum umbelliferum John H. Thomas 1958-2-15 6988 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4190  Solanum umbelliferum John H. Thomas 1973-3-12 16496 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  NY820558  Solanum umbelliferum C. F. Baker 1902-1-15 234 San Mateo West side of King's Mountain Comment
  POM87735  Solanum umbelliferum L. R. Abrams 1902-1-7 2262 San Mateo Kings Mts. Comment
  RSA295084  Solanum umbelliferum Robert A. Norris, John L. Inase 1981-1-18 4093 San Mateo Near Ano Nuevo Point. (near Santa Cruz Co. line) Comment
  CAS-BOT-BC154181  Solanum umbelliferum H. A. Dutton 1900-2-11 s.n. San Mateo Woodside, on Jasper Comment
  OBI9135  Solanum umbelliferum E. K. Balls 1948-3-19 7871 San Mateo Skyline Dr about 12 mi N of Santa Cruz 244 Comment
  SEINET3388313 Image available Solidago californica Lewis S. Rose 1932-10-12 32669 San Mateo Kings Mountain Comment
  SD27769  Solidago canadensis subsp. elongata Carl B. Wolf 1927-6-29 568 San Mateo on the coast 3 mi. S. of San Gregorio. Comment
  RSA97497  Solidago canadensis subsp. elongata L. S. Rose 1954-8-29 54113 San Mateo Trinitas. 30 Comment
  CAS-BOT-BC365534  Solidago elongata Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain. East facing slope below parking lot Comment
  JEPS32447  Solidago elongata W. L. Jepson 1910-8-18 4163 San Mateo Butano Cr Comment
  UC1070254  Solidago elongata T. Tyrrell 1928-9-26 12 San Mateo Pomponio Creek Santa Cruz Quad., , Plot #13 91 Comment
  CAS-BOT-BC365712  Solidago spathulata Phillip C. Wheeler 1965-8-16 s.n. San Mateo San Bruno Mountain. Lower April Brook Comment
  CAS-BOT-BC365746  Solidago spathulata Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountain. Colma Canyon near old quarry Comment
  CAS-BOT-BC365748  Solidago spathulata John H. Thomas 1961-5-12 9331 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JEPS27367  Solidago spathulata Rimo Bacigalupi with J. Roof and L. Heckard 1961-4-24 7627 San Mateo on lateral ridge below and se of end of paved ridge-top road just e KRON television tower and station (on Guadalupe Valley side of the summit of San Bruno Mountain); Guardalupe Valley side of summit San Bruno Mountain 304 Comment
  SD38297  Solidago spathulata Edith A. Purer 1932-7-18 4024 San Mateo Comment
  UCD18352  Solidago spathulata J. Skoss 1948-8-22 121 San Mateo San Vicente Canyon. Comment
  CAS-BOT-BC365925  Soliva sessilis W. R. Dudley 1895-6-6 s.n. San Mateo Santa Cruz Peninsula. Near Pescadero Creek 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-BC365938  Soliva sessilis R. S. Ferris 1925-5-1 4157 San Mateo Selah Chamberlain Residence, Woodside Comment
  JROH1242  Soliva sessilis John Hunter Thomas 1978-4-25 19147 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1254  Soliva sessilis John Hunter Thomas 1992-5-5 25212 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA130975  Soliva sessilis W. R. Dudley 1895-6-6 s.n. San Mateo Near Pescadero Creek. The Santa Cruz Peninsula. Comment
  UCD23458  Soliva sessilis E. A. Parzail 1949-8-1 s.n. San Mateo 1144 Cortez Avenue, Burlingame. Comment
  CAS-BOT-BC374700  Sonchus oleraceus John H. Thomas 1958-3-19 7054 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  CAS-BOT-BC374706  Sonchus oleraceus Fred Hemphill 1973-5-6 781 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC374707  Sonchus oleraceus Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Horseshoe Ridge Comment
  JROH1263  Sonchus oleraceus John Hunter Thomas 1981-5-8 20554 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA128377  Sonchus oleraceus P. H. Raven 1950-6-3 2209 San Mateo along Millbrae Ave., Millbrae. 61 Comment
  JROH5519  Sparganium eurycarpum var. eurycarpum James McMurphy 1906-8-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  JROH5531  Sparganium eurycarpum var. eurycarpum John Hunter Thomas 1992-7-24 25390 San Mateo Jasper Ridge Biological Preserve, Stanford University. In water near boat ramp. Comment
  UC625361  Spartina foliosa Ira L. Wiggins 1938-11-25 9213 San Mateo Dumbarton Bridge approach; Dumbarton Bridge Comment
  UCD92988  Spartina foliosa Malcolm A. Nobs; S. Galen Smith 1949-8-27 1622 San Mateo E of Redwood City. Comment
  JROH1757  Spergularia John Hunter Thomas 1978-4-25 19156 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC390203  Spergularia bocconi G. B. Rossbach; R. P. Rossbach 1939-5-12 726 San Mateo San Pedro Point Comment
  CDA24131  Spergularia macrotheca T. C. Fuller 1967-6-13 15939 San Mateo Half Moon Bay Harbor, north edge of the town of Half Moon Bay. 0 Comment
  CAS-BOT-BC390749  Spergularia marina Elizabeth McClintock; Paul Reeberg 1989-6-13 s.n. San Mateo San Bruno Mountains. P.G.&.E. Marsh Comment
  CAS-BOT-BC390921  Spergularia marina Javier Penalosa 1963-3-30 2768 San Mateo San Bruno Mountain. Guadalupe Valley 30 Comment
  CAS-BOT-BC166942  Spergularia rubra Peter Rubtzoff 1978-7-8 9234 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  POM151816  Spergularia salina C. F. Baker 1902-10-20 1859 San Mateo Searsville. Comment
  SD25965  Spiranthes romanzoffiana Edith A. Purer 1939-7-1 7928 C San Mateo Wet spot, sand dunes, Ano Nuevo Point. Comment
  SJSU15219  Stachys ajugoides Toni Corelli 2011-5-21 701 San Mateo Ano Nuevo State Park, Cascade Field 12 Comment
  SJSU15220  Stachys ajugoides Toni Corelli 2011-5-23 702 San Mateo Bean Hollow State Beach, Arroyo de los Frijoles Trail. Coastal bluff top south of Bean Hollow Beach 10 Comment
  RSA131277  Stachys ajugoides L. R. Abrams 1915-6-7 5244 San Mateo Woodside to Crystal Springs Road. Comment
  RSA131287  Stachys ajugoides W. R. Dudley 1894-05 s.n. San Mateo Woodside to Crystal Springs Reservoir Comment
  UC702529  Stachys ajugoides var. ajugoides L. S. Rose 1941-10-24 41469 San Mateo Belmont 3 Comment
  CHSC45762  Stachys bullata Steven Triano 1988-5-24 205 San Mateo Ca 100 ft sw of Hwy. 1, 750 ft s of Gazos Creek and 2.4 mi s of Pigeon Point Light Station. 6 Comment
  UC1124917  Stachys bullata N. K. Carlson 1935-7-5 32 San Mateo 3 mi s Bellvale; Santa Cruz Quadrangle Comment
  UC1537553  Stachys bullata Gordon H. True Jr. 1936-6-7 491 San Mateo 2 mi s Pescadero 15 Comment
  UC1537555  Stachys bullata Gordon H. True Jr. 1936-6-14 503 San Mateo canyon s Saledo Beach (near coast) 152 Comment
  HSC23911  Stachys bullata Mary Katherine Wicksten 1971-6-15 51 San Mateo Huddart Park near residence 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
  SJSU15310  Stachys bullata Vince Ortisi 1975-9-27 3 San Mateo Saunders Shingle Mill (historical marker) off Tunitus Creek road. 457 Comment
  UC191758  Stachys bullata E. L. Greene 1887-6-11 San Mateo Comment
  UC306579  Stachys pycnantha A. D. E. Elmer June, 1903 4261 San Mateo Alpine School House Comment
  CAS-BOT-BC164650  Stachys rigida subsp. quercetorum Peter Rubtzoff 1975-10-11 8425 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC164649  Stachys rigida subsp. quercetorum Peter Rubtzoff 1976-6-13 8636 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  RSA218025  Stachys rigida subsp. quercetorum Elizabeth McClintock, Carlyn Halde 1963-6-23 s.n. San Mateo East-facing slope below parking lot, San Bruno Mountain Comment
  JROH1273  Stebbinsoseris heterocarpa John Rawlings 2007-5-30 1035 San Mateo Jasper Ridge Biological Preserve, Stanford University; uphill from Escobar horse trail, 126 Comment
  UCSC007784  Stellaria media Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH1791  Stellaria nitens John Hunter Thomas 1988-5-16 24462 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1536756  Stephanomeria elata G. H. True Jr. 1937-7-31 830 San Mateo near Skyline Blvd. (Alpine Road) 182 Comment
  JROH5813  Stephanomeria virgata John Rawlings, Diane Renshaw 2016-8-8 1931 San Mateo Jasper Ridge Biological Preserve, Stanford University. On steep south-facing road bank opposite Tr. 14/Rd E intersection, a few additional plants at the Tr. 14/Rd E intersection and along the trail 106 Comment
  JROH1275  Stephanomeria virgata Carol Zabel 1989-8-4 19 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road E, north side of road near intersection with Trail 14 Comment
  JROH5323  Stipa lepida John H. Thomas 1977-5-14 18610 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5392  Stipa miliacea var. miliacea Ann Lambrecht 2004-7-20 11 San Mateo Jasper Ridge Biological Preserve, Stanford University. Off Trail 13, about 10 m from W end of Leonard's bridge, and about 2 m N of bridge. Comment
  JROH5330  Stipa pulchra John H. Thomas 1955-5-6 4995 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small draw on south side of ridge. 182 Comment
  SJSU7535  Stipa pulchra Lewis S. Rose 1963-4-27 63000 San Mateo Skyline Blvd W of San Mateo 91 Comment
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Oct 16 2013
  POM296440  Stuckenia pectinata Lyman Benson 1932-6-29 3750 San Mateo Lake Searsville, Santa Cruz Mt. range, San Francisco Bay watershed. 152 Comment
  POM313014  Stuckenia pectinata Malcolm A. Nobs, S. Galen Smith 1949-8-25 1552 San Mateo Marshes at Sharp Park. Comment
  CAS-BOT-BC271604  Symphoricarpos albus var. laevigatus Walter Knight; Irja Knight 1964-5-30 594 San Mateo Colma Canyon, San Bruno Mountain Comment
  CAS-BOT-BC271637  Symphoricarpos albus var. laevigatus C. F. Baker 1901-9-5 238 San Mateo West side Kings Mt. Comment
  CAS-BOT-BC271638  Symphoricarpos albus var. laevigatus D. E. Breedlove 1974-5-13 36218 San Mateo Brushy slopes San Pedro Valley Park, Pacifica 152 Comment
  CAS-BOT-BC271640  Symphoricarpos albus var. laevigatus J. I. McMurphy 1906-5-8 s.n. San Mateo Near Crystal Springs Lake, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC271647  Symphoricarpos albus var. laevigatus C. B. Wolf 1931-8-20 1194 San Mateo Los Trancos Creek 2 miles back of Stanford University near Schenkel's Camp 91 Comment
  CAS-BOT-BC271648  Symphoricarpos albus var. laevigatus John H. Thomas 1961-5-7 9267 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH1678  Symphoricarpos albus var. laevigatus John H. Thomas 1964-11-29 10540 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below dam Comment
  RSA152163  Symphoricarpos albus var. laevigatus John H. Thomas 1961-5-7 9267 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  RSA3068  Symphoricarpos albus var. laevigatus C. B. Wolf 1931-8-20 2325 San Mateo Los Trancos Creek, 2 miles back of Stanford University, near Schenkel's Camp. 91 Comment
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Sep 30 2011
  RSA770503  Symphoricarpos albus var. laevigatus Lyman Benson 1930-5-3 2091 San Mateo Above Woodside, La Honda Grade; Mt. range: Santa Cruz. 244 Comment
  UC912474  Symphyotrichum chilense Herbert L. Mason 1927-10-4 4130 San Mateo Mouth of Waddell Creek, Ano Nuevo Pt. Ano Nuevo Pt., Waddell Creek Comment
  CAS-BOT-BC99083  Symphyotrichum chilense Le Roy Abrams 1900-10-1 1042 San Mateo Portola Comment
  CAS-BOT-BC99084  Symphyotrichum chilense W. R. Dudley 1895-9-21 s.n. San Mateo Menlo Park - Santa Cruz Mountain Peninsula Comment
  OBI59917  Symphyotrichum chilense David J. 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
  CAS-BOT-BC376710  Tanacetum bipinnatum Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  UCR256289  Taraxacum officinale Peter Rubtzoff 1976-5-22 8553 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  CAS-BOT-BC376918  Taraxacum officinale Paul Reeberg 1989-5-1 s.n. San Mateo San Bruno Mountains. Junction of Randolph Ave. and Hillside Blvd. Comment
  RSA119855  Tauschia kelloggii W. R. Dudley 1892-5-14 s.n. San Mateo Pass, near head of Calera Valley. Comment
  CAS-BOT-BC447478  Tellima grandiflora W. R. Dudley 1900-3-17 s.n. San Mateo Ravine, north of Seal Cove Comment
  RSA18325  Tellima grandiflora Carl B. Wolf 1929-5-10 3710 San Mateo La Honda. Santa Cruz Mts. Comment
  CAS-BOT-BC447470  Tellima grandiflora Walter Knight; Irja Knight 1964-5-30 596 San Mateo Colma Canyon up creek from indian Head Rock. Comment
  CAS-BOT-BC447476  Tellima grandiflora Philip C. Wheeler; Elizabeth McClintock 1967-6-11 s.n. San Mateo North facing brushy slope to south of new Guadalupe Parkway just before it meets Radio Road Comment
  UC766175  Tetragonia tetragonoides R. F. Hoover 1941-2-12 4754 San Mateo Half Moon Bay Comment
  CAS-BOT-BC438266  Tetragonia tetragonoides J. H. Thomas 1963-8-4 10239 San Mateo Just north of Pigeon Pt. Light House. Comment
  CAS-BOT-BC438267  Tetragonia tetragonoides Walter Knight; Irja Knight 1965-4-24 1081 San Mateo San Bruno Mountain. Near dumps at west end of mt. Comment
  JROH3510  Thalictrum fendleri var. polycarpum John H. Thomas 1973-3-12 16495 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5910  Thalictrum fendleri var. polycarpum L. Nordby 1982-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail between Escobar Gate and the weather station. Comment
  SEINET12086638  Thalictrum polycarpum P. R. Hichborn 1920-1 147 San Mateo Portola Valley, Santa Cruz Mountain Peninsula Comment
  UCD93350  Thinopyrum ponticum John C. Throckmorton 1976-6-29 s.n. San Mateo La Honda, Star Route 1. Comment
  CAS-BOT-BC66657  Thysanocarpus curvipes John H. Thomas 1967-4-28 12719 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66673  Thysanocarpus curvipes John H. Thomas 1976-4-2 18074 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66674  Thysanocarpus curvipes John H. Thomas 1977-4-2 18507 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH1598  Thysanocarpus curvipes John Hunter Thomas 1982-4-28 20870 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC66683  Thysanocarpus curvipes Carl B. Wolf 1929-5-17 3716 San Mateo 1 mile west of Skyline Boulevard on Alpine Road. 304 Comment
  RSA0039332  Thysanocarpus curvipes var. curvipes Carl B. Wolf 1929-5-17 3716 San Mateo 1 mi. west of Skyline Drive on Alpine Road. Comment
  CAS-BOT-BC447582  Tiarella trifoliata var. unifoliata W. R. Dudley 1905-6-18 s.n. San Mateo Santa Cruz Mountain Peninsula: Iverson's Old Place Pescadero Creek Comment
  JROH398  Torilis nodosa John Hunter Thomas 1986-5-17 24047 San Mateo Jasper Ridge Biological Preserve, Stanford University; dam to Rattlesnake Rock Comment
  JEPS121588  Toxicodendron diversilobum Adam C. Schneider with C. Matt Guilliams 2013-4-7 116 San Mateo Crystal Springs Reservoir Comment
  UCD116982  Toxicodendron diversilobum W. A. Harvey; J. M. Tucker 1948-6-29 1711 San Mateo Beside road to Portola State Park, just west of junction with Highway 5 (Skyline Boulevard). Comment
  JROH4760  Toxicoscordion fremontii John Hunter Thomas 1980-4-10 19871 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA7720  Tragopogon dubius I. J. Campbell 1964-11-19 San Mateo State Highway 1 & Whitehouse Ranch Road, Pescadero. 0 Comment
  CAS-BOT-BC389711  Tragopogon porrifolius L. Sigal 1969-5-1 280 San Mateo Campus of San Mateo Comment
  RSA120742  Trientalis latifolia S. S. Tillett, I. Sternback 1956-6-24 525 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  UC1123294  Trientalis latifolia N. K. Carlson 1935-7-3 118 San Mateo 3 mi s of Bellvale 91 Comment
  RSA116715  Trientalis latifolia W. R. Dudley 1895-6-8 s.n. San Mateo Santa Cruz Peninsula, in redwoods near Pescadero creek Comment
  UCD117573  Trientalis latifolia D. H. Hartmann 1941-4-26 s.n. San Mateo west of Palo Alto. Comment
  UCSC010358  Trifolium Dylan M. Neubauer 2016-5-19 690 San Mateo (SnFrB) Santa Cruz Mountains, headwaters of Waterman Creek, w of Hwy 9 423 Comment
  SEINET11173447 Image available Trifolium albopurpureum A. A. Heller 1907-5-23 8554 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  UC725851  Trifolium albopurpureum var. albopurpureum A. A. Heller 1907-5-23 8554 San Mateo back of San Mateo (on Half Moon Bay Rd) Comment
  UC165514  Trifolium albopurpureum var. dichotomum J. Burtt Davy 1893-6-22 San Mateo Lake Pilarcitos Comment
  JROH2240  Trifolium barbigerum John H. Thomas 1974-4-19 17162 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2235  Trifolium barbigerum Le Roy Abrams 1904-5-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11173562 Image available Trifolium barbigerum A. A. Heller 1905-5-15 7842 San Mateo Near Alma Comment
  UC165625  Trifolium bifidum var. decipiens J. Burtt Davy 1895-1 1019 San Mateo Pilarcitos Comment
  UCSC006001  Trifolium buckwestiorum Randall Morgan 1996-5-18 2955 San Mateo Seed from Coal Mine Ridge Comment
  SBBG33500  Trifolium ciliolatum A. D. E. Elmer -May-1903 San Mateo Portola Comment
  JROH2257  Trifolium ciliolatum John H. Thomas 1975-4-30 17842 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Escobar Gate Comment
  SEINET12157184  Trifolium ciliolatum Unknown 1932-1 9015 San Mateo Los Francos Woods Comment
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Nov 1 2021
  UC630933  Trifolium depauperatum var. depauperatum P. B. Kennedy 1928-5-2 10098 San Mateo e Daly city (hills) Comment
  RSA8349  Trifolium dichotomum L. S. Rose 1933-5-17 33172 San Mateo Redwood City Comment
  JROH2291  Trifolium fucatum John H. Thomas 1974-4-25 17204 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge Comment
  JROH2302  Trifolium fucatum John Hunter Thomas 1985-4-11 23522 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG3006  Trifolium fucatum L. S. Rose 1935-5-4 San Mateo open hills, Burlingame Comment
  UC866776  Trifolium fucatum Alice Eastwood 1915-6-13 4720 San Mateo Granada Comment
  POM126277  Trifolium fucatum var. fucatum R. L. Pendleton 1907-4-20 622 San Mateo Ocean View. 122 Comment
  JEPS127823  Trifolium gracilentum Adam C. Schneider with C. Matt Guilliams 2013-4-7 80 San Mateo Comment
  JROH2336  Trifolium hybridum John Hunter Thomas 1983-6-2 22326 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the low-flow crossing Comment
  UC630795  Trifolium macraei Charles Piper Smith 1908-4-26 1420 San Mateo se cemeteries; base of San Bruno Mtn Comment
  SJSU15437  Trifolium microcephalum Toni Corelli 2010-5-13 606 San Mateo Pedro Point Headlands, Pacifica, CA, along South Ridge Trail 180 Comment
  SEINET10630892  Trifolium pratense Robert A. Norris 1977-5-2 Norris 3567 San Mateo In disturbed soil on gravelly bank by Interstate Hwy. 280, just S of Farmhill Blvd. Exit, Woodside, San Mateo Co., California. Comment
  JROH2379  Trifolium variegatum John H. Thomas 1968-3-31 14260 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC165589  Trifolium variegatum var. melananthum J. Burtt Davy 1895-1 1027 San Mateo Pilarcitos Comment
  RSA95537  Trifolium variegatum var. melananthum L. S. Rose 1953-4-5 53011 San Mateo Redwood City, along Bayshore Highway. 3 Comment
  JROH5703  Trifolium variegatum var. variegatum John Rawlings 2015-3-15 1356 San Mateo Jasper Ridge Biological Preserve, Stanford University; grassy drainage on ridge-top serpentine prairie. 188 Comment
  UC16818  Trifolium wormskioldii J. Burtt Davy 1893-6-17 807 San Mateo Belmont South Coast Ranges Comment
  UC764667  Trifolium wormskioldii R. F. Hoover 1939-4-21 4056 San Mateo 2 mi s Colma Comment
  UC80455  Trifolium wormskioldii Katharine Brandegee June 1905 San Mateo Moss Beach Comment
  CAS-BOT-BC157969  Trifolium wormskioldii Peter Rubtzoff 1978-5-5 9166 San Mateo San Bruno Mountains. Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction, upper part of East Fork Colma Creek Canyon Comment
  CAS-BOT-BC401045  Trillium J. Lovelle 1926-8-1 39 San Mateo Mt. Ellen Trail Comment
  JROH4721  Trillium chloropetalum John H. Thomas 1958-2-15 6981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC101806  Trillium chloropetalum Kjirsten A. Wayman, Brett Hall, Jim West 2012-3-23 303 San Mateo Gazos Creek Road, between Hwy 1 and Cloverdale Rd. N 37.17445 W 122.35336 3 Comment
  JROH4732  Trillium chloropetalum John Hunter Thomas 1980-4-5 19858 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  RSA3927  Trillium chloropetalum var. chloropetalum W. R. Dudley 1900-3-18 s.n. San Mateo Below San Andreas Dam. Comment
  CAS-BOT-BC521063  Trillium chloropetalum var. giganteum Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC521074  Trillium chloropetalum var. giganteum W. R. Dudley 1894-3-24 s.n. San Mateo Santa Cruz Peninsula: Bank of Pescadero Creek Comment
  CAS-BOT-BC521209  Trillium chloropetalum var. giganteum James McMurphy 1902-3-22 s.n. San Mateo Above Portola Comment
  RSA378201  Trillium chloropetalum var. giganteum D. D. Keck 1932-3-6 1394 San Mateo La Honda road above Searsville Lake, Santa Cruz Mountains. Comment
  SEINET3888575  Trillium chloropetalum var. giganteum D. D. Keck 1932-3-6 1394 San Mateo La Honda road above Searsville Lake, Santa Cruz Mountains, San Mateo County.; 0 Comment
  CAS-BOT-BC238572  Triphysaria floribunda C. F. B. 1902-3-22 346 San Mateo South San Francisco Comment
  SD60189  Triphysaria floribunda I. L. Wiggins, R. S. Ferris 1932-4-7 8038 A San Mateo Hills above Colma Comment
  UCR139346  Triphysaria floribunda David D. Keck 1932-5-6 1471 San Mateo San Francisco Bay Region, 1 mi south of San Mateo on Highway US 101 61 Comment
  JROH4132  Triphysaria pusilla John H. Thomas 1956-4-7 5608 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  JROH4141  Triphysaria pusilla John Hunter Thomas 1978-4-20 19092 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU16040  Triteleia hyacinthina Toni Corelli, John Rawlings 2016-4-29 1763 San Mateo Cascade Field, north and south of Cascade Cr. Trail, Ano Nuevo State Park 21 Comment
  CAS-BOT-BC523099  Triteleia ixioides subsp. ixioides J. H. Thomas 1949-5-7 504 San Mateo King's Mountain Comment
  UCR143315  Triteleia laxa David D. Keck 1932-5-6 1466 San Mateo Belmont 30 Comment
  CAS-BOT-BC526363  Triteleia laxa John H. Thomas 1971-5-2 15847 San Mateo Near intersection of Canada and Edgewater Roads, about 4 miles SW of center of Redwood City 304 Comment
  CAS-BOT-BC526790  Triteleia laxa Josephine D. Randall 1907-6-8 235 San Mateo Santa Cruz Peninsula Comment
  SEINET12053810  Triteleia laxa M. T. Doutt 1931-1 412 San Mateo Skyline Blvd. W of Hellbrae Comment
  CAS-BOT-BC527392  Triteleia peduncularis Susan Sommers 1980-5-30 s.n. San Mateo Edgewood site, flat zone below hill with serpentine outcrops Comment
  POM273891B  Tropidocarpum gracile Lyman Benson 1930-5-1 2047 San Mateo Stanford University. Mt. Range: San Lorenzo. 122 Comment
  UCD94989  Typha X glauca Malcolm A. Nobs; S. Galen Smith 1949-8-25 1555 San Mateo Sharp Park. Comment
  SEINET7951747 Image available Typha angustifolia I. L. Wiggins 1929-7-4 3803 San Mateo near Pescadero Beach Comment
  RSA10402  Typha angustifolia Carl B. Wolf 1927-6-15 2168 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  RSA17882  Typha latifolia Carl B. Wolf 1927-6-10 s.n. San Mateo Searsville Lake. Comment
  CAS-BOT-BC212677  Ulex europaeus Phillip C. Wheeler 1965-5-17 s.n. San Mateo In Crocker Hills near Cow Palace Comment
  CAS-BOT-BC212678  Ulex europaeus John H. Thomas 1974-5-7 17312 San Mateo San Bruno Mountain, norther part opf county. Near the Radio Broadcast Towers near summit. Comment
  JEPS87363  Ulex europaeus Don Pendleton 1993-10-28 San Mateo 0.3 mi e San Bruno Mountain County Park Gatehouse (on Guadalupe Canyon Parkway); San Bruno Mountain County Park 300 Comment
  CAS-BOT-BC91230  Umbellularia californica Peter H. Raven 1964-2-16 18743 San Mateo Just south of Lake San Andreas. Comment
  JEPS121560  Umbellularia californica Adam C. Schneider with C. Matt Guilliams 2013-3-9 39 San Mateo Crystal Springs Reservoir Comment
  JROH141  Umbellularia californica John Hunter Thomas 1981-2-15 20216 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12102549  Umbellularia californica Unknown 1930-1 7306 San Mateo Comment
  CAS-BOT-BC382762  Uropappus lindleyi unspecified Ap-- s.n. San Mateo San Mateo, San Bruno Mts Comment
  CAS-BOT-BC403973  Urtica dioica subsp. gracilis V. F. Hesse 1952-5-12 941 San Mateo Gazos Creek Canyon, about 4 miles from sea coast 45 Comment
  CAS-BOT-BC404025  Urtica dioica subsp. holosericea Le Roy Abrams 1901-9-1 2218 San Mateo Menlo Park Comment
  RSA249475  Urtica dioica subsp. holosericea John F. Emmel 1972-6-15 407 San Mateo At edge of eucalyptus grove, 0.1 air mile SW of jct Radio Road and Guadalupe Cyn Parkway, San Bruno Mtns. 221 Comment
  SEINET12036188  Urtica urens Unknown 1932-1 9160 San Mateo San Madero Creek Comment
  CAS-BOT-BC199179  Vaccinium cespitosum Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo Near radio station on San Bruno Mountain, Kamchatka Point Comment
  CAS-BOT-BC199180  Vaccinium cespitosum Elizabeth McClintock; Paul Reeberg 1988-8-12 s.n. San Mateo West facing slope of Kamchatka Point Comment
  CAS-BOT-BC199348  Vaccinium ovatum John Thomas Howell 1924-2-23 258 San Mateo King Mountain Comment
  CAS-BOT-BC199359  Vaccinium ovatum L. R. A. 1902-3-16 2281 San Mateo King's [Kings] Mountain Comment
  CAS-BOT-BC199363  Vaccinium ovatum W. R. Dudley 1898-3-5 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC199374  Vaccinium ovatum Eric Walther 1919-8-1 s.n. San Mateo Woodside Comment
  POM132203  Vaccinium ovatum A. D. E. Elmer 1903-04 4561 San Mateo Kings Mountain. Comment
  UC634722  Vaccinium ovatum Herbert L. Mason 1927-4-23 3671 San Mateo La Honda Comment
  UC877266  Vaccinium ovatum E. W. Rust 1907-4-27 San Mateo Kings Mountain 762 Comment
  UCD118084  Vaccinium ovatum Janet Jacob 1951-4-1 52 San Mateo On ridge 7 miles east of Pescadero. Comment
  SEINET10449305  Vaccinium ovatum Mary Susan Taylor 1978-8-30 Taylor 1862 San Mateo Comment
  CAS-BOT-BC76140  Vancouveria planipetala Dr. E. B. Copeland 1903-5-9 3051 San Mateo Big Basin. Comment
  CAS-BOT-BC76147  Vancouveria planipetala W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Peninsula. Pescadero Creek near Iverson's. Comment
  JROH4262  Verbena lasiostachys var. lasiostachys John Hunter Thomas 1977-6-16 18774 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4272  Verbena lasiostachys var. scabrida John H. Thomas 1968-5-22 14463 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near edge of lake Comment
  UC1252125  Veronica filiformis Mrs. M. C. O'Neil Jr. 1964-5-7 San Mateo 3805 Fernwood Street, San Mateo San Mateo; 3805 Fernwood Street, San Mateo Comment
  UC16934  Vicia americana var. americana J. Burtt Davy Jun 21 1893-Jun 23 1893 1160 San Mateo Pilarcitos Lake and Pilarcitos Canyon; Pilarcitos Lake, Pilarcitos Canyon Comment
  JEPS81152  Vicia benghalensis Edward Lee with H. L. Mason 1935-6-16 1527 San Mateo between Ano Nuevo and Franklin Point Comment
  CHSC23153  Vicia gigantea Robert A. Schlising 1963-2-23 2435 San Mateo Coast Range. 21 miles north of Davenport, along Highway 1. Comment
  SJSU1013  Vicia gigantea J. E. Hagerty 1950-5-20 San Mateo Pescadero Beach Comment
  SJSU2299  Vicia gigantea C. W. Sharsmith 1950-4-16 6628 San Mateo near Pescadero Point, near Pescadero Comment
  UCD108671  Vicia hassei P. B. Kennedy 1917-5-1 s.n. San Mateo Crystal Springs Road. Comment
  SEINET2064196  Vicia nigricans subsp. gigantea C. W. Sharsmith 1947-4-13 6750 San Mateo Summit of seaward border of coastal bluff, Pescadero Beach, near Pescadero Point Comment
  SD227823  Vicia sativa G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3749 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek. 106 Comment
  UCD164333  Vicia sativa Peter Rubtzoff 1976-6-30 8709 San Mateo San Bruno Mountains. 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  SD37861  Vicia semicincta Edith A. Purer 1932-7-18 4021 San Mateo Near Pigeon Point, roadside Comment
  SD148148  Vicia tetrasperma G. K. Helmkamp, E. A. Helmkamp 2001-6-2 6769 San Mateo Central CA coast, Purissima Roas east of Half Moon Bay, 1.9 miles east of CA-1, disturbed roadside soil 167 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
  CAS-BOT-BC264039  Viola adunca Ira L. Wiggins 1931-2-21 5091 a San Mateo Near the beach, Pescadero Beach Comment
  CAS-BOT-BC264049  Viola adunca Robert Robertson 1954-5-1 121 San Mateo At Pebble Beach 9 Comment
  RSA15353  Viola adunca Carl B. Wolf 1927-1-29 168 San Mateo Pebble Beach, coast south of Pescadero. Comment
  UC19259  Viola adunca Ivar Tidestrom 1894-3-24 San Mateo Comment
  SEINET6176297  Viola adunca Lewis S. Rose 1951-3-7 5100 San Mateo San Bruno Hills.; 0 244 Comment
  CAS-BOT-BC389693  Viola ocellata Mary K. Wicksten 1971-6-17 198 San Mateo Huddart Park Comment
  POM286591  Viola ocellata Lyman D. Benson 1931-2-28 2617 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  RSA130815  Viola ocellata M. N. paulson 1917-04 s.n. San Mateo Kings Mt Road. Comment
  RSA130982  Viola ocellata Helen M. Edwards 1917-3-8 s.n. San Mateo Woodside. Comment
  RSA77751  Viola ocellata D. D. Keck 1932-6-1 1495 San Mateo Above Woodside on La Honda road, east slope of Santa Cruz Mtns. Comment
  RSA152239  Viola ocellata I. L. Wiggins 1925-04 1645 San Mateo On Kings Mtn Road three fourths of a mile above Woodside. Comment
  UC1073374  Viola pedunculata George B. Rossbach 1955-3-26 354 San Mateo next ridge n of San Bruno Mountain (north San Mateo County) 243 Comment
  UC1085311  Viola pedunculata F. A. Pitelka April 1946 San Mateo lower end of San Andreas Lake Comment
  HSC21838  Viola pedunculata L. S. Rose 1965-3-25 65009 San Mateo San Bruno Mtns., N end 122 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