Search Results — 2000 specimen records retrieved (1319 records with coordinates)
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Results for search: County=SAN MATEO; Source=All;   

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

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  SEINET11941813  Abronia latifolia M. T. Doutt 1931-1 190 San Mateo Ano Nuevo Pt Comment
  CAS-BOT-BC233752  Abronia umbellata C. F. Baker 1902-10-1 1742 San Mateo Pillar Point Comment
  SD41440  Abronia umbellata Edith A. Purer 1934-8-14 5915 San Mateo Half Moon Bay. Comment
  JROH1983  Acacia melanoxylon Toni Corelli 2005-8-3 299 b San Mateo Jasper Ridge Biological Preserve, Stanford University. South of Road B, along San Francisquito Creek near Dennis Martin site 71 Comment
  UC729677  Acaena pinnatifida var. californica Carl B. Wolf 1929-5-25 3732 San Mateo Pebble Beach s. of Pescadero; Pebble Beach Comment
  CAS-BOT-BC451128  Acaena pinnatifida var. californica Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo Near old quarry on area adjacent to the mouth of Colma Canyon; San Bruno Mountains Comment
  RSA18356  Acaena pinnatifida var. californica Carl B. Wolf 1929-5-25 3732 San Mateo N of Pigeon Pt, San Mateo Comment
  CAS-BOT-BC219602  Acanthomintha duttonii John H. Thomas 1972-4-16 16065 A San Mateo Near Cyrstal [Crystal] Springs Reservoir near Highway 92 Comment
  SBBG33522  Acanthomintha duttonii A. D. E. Elmer -May-1903 4538 San Mateo Crystal Springs Lake Comment
  CDA40752  Acanthomintha duttonii Polo Moreno 1989-8-2 s.n. San Mateo 1/4 mile southwest of intersection Highway 280 and Edgewood Road, west of Redwood City. 0 Comment
  CAS-BOT-BC333292  Acer macrophyllum L. R. Abrams no date on label s.n. San Mateo La HOnda Comment
  JROH155  Acer macrophyllum John H. Thomas 1971-4-25 15786 San Mateo Jasper Ridge Biological Preserve, Stanford University 92 Comment
  RSA116909  Acer macrophyllum I. L. Wiggins 1929-3-23 3372 San Mateo Road to Mud Lake, near Stanford University Comment
  RSA131268  Acer macrophyllum Josephine Randall 1906-03 s.n. San Mateo San Francisquito Creek near Stanford University Comment
Read comments
Sep 18 2013
  JROH168  Acer negundo John H. Thomas 1968-3-17 14175 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake 106 Comment
  CAS-BOT-BC21598  Achillea millefolium Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain. Below parking lot. Comment
  JROH442  Achillea millefolium John H. Thomas 1967-5-31 12934 San Mateo Jasper Ridge Biological Preserve, Stanford University 120 Comment
  JROH448  Achillea millefolium John Hunter Thomas 1981-4-23 20489 San Mateo Jasper Ridge Biological Preserve, Stanford University 130 Comment
  SBBG25068  Achillea millefolium D. Myrick 1966-6-11 1446 San Mateo off Hwy 1, S of San Francisco near Pescadero Comment
  JROH455  Achyrachaena mollis Arthur Spiegler 1952-5-10 70 San Mateo Jasper Ridge Biological Preserve, Stanford University; north of Searsville Lake Comment
  JROH462  Achyrachaena mollis John H. Thomas 1971-4-10 15754 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH468  Achyrachaena mollis John Hunter Thomas 1981-4-30 20514 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM284475  Achyrachaena mollis Arthur L. Cohen 1935-4-21 625 San Mateo Jasper Ridge; Mt.Range: Coast; Watershed: Searsville. 183 Comment
  SD2527  Acmispon americanus Ulysses S. Grant IV Jun 1925 San Mateo Burlingame Comment
  JROH2056  Acmispon americanus var. americanus John H. Thomas 1971-5-30 15962 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU7494  Acmispon americanus var. americanus L. S. Rose 1964-9-5 64071 San Mateo Emerald L W of Redwood City 243 Comment
  SD37934  Acmispon brachycarpus Cummings, McCallum 1933-5-10 3697 San Mateo Hill on back of of Stanford campus. Comment
  JROH2095  Acmispon wrangelianus John H. Thomas 1967-5-10 12848 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10962249  Actaea rubra Adolph D. E. Elmer Elmer 4703 San Mateo 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
  CAS-BOT-BC29293  Adenocaulon bicolor Josephine D. Randall 1907-6-29 41 San Mateo Kings Moutain Road Comment
  CAS-BOT-BC29296  Adenocaulon bicolor A. D. E. Elmer 1903-6-1 4300 San Mateo Pescadero Creek Comment
  CAS-BOT-BC29290  Adenocaulon bicolor E. S. Spalding 1924-6-28 2967 San Mateo La Hondo Comment
  JROH3587  Adenostoma fasciculatum var. fasciculatum John H. Thomas 1975-5-2 17846 San Mateo Jasper Ridge Biological Preserve, Stanford University 156 Comment
  JROH3591  Adenostoma fasciculatum var. fasciculatum John Hunter Thomas 1987-5-26 24317 San Mateo Jasper Ridge Biological Preserve, Stanford University 160 Comment
  CAS-BOT-BC65513  Adiantum aleuticum W. R. Dudley 1896-4-18 s.n. San Mateo Pescadero Creek, Santa Cruz Mts. Comment
  CAS-BOT-BC65516  Adiantum aleuticum J. H. Thomas 1950-4-8 1465 San Mateo Boulder Creek Canyon, about 1 1/2 mile NW of city of Boulder Creek 274 Comment
  CAS-BOT-BC65671  Adiantum jordanii Margaret Barry 1937-5-15 139 San Mateo Coal Mine Ridge Comment
  RSA0030869  Adiantum jordanii Deb Annuschka 1989-8-4 337 San Mateo Isenberg Ranch. Comment
  LA16623  Aesculus californica C. B. Wolf; 1934-11-13 6242 San Mateo Menlo Park, at Cambridge Ave. & Cornell Rd., NW of San Francisquito Creek 15 Comment
  RSA131267  Aesculus californica Deborah Hichborn 1920-5-20 s.n. San Mateo San Francisquito Creek. Santa Cruz Mountain Peninsula. Comment
  UCR3560  Aesculus californica Wm. Horn Jr. 1963-6-10 630610- 2 San Mateo San Francisco Bay Region, Hillsborough [Burlingame], 2240 Redington Road 30 Comment
  SEINET7076092  Agoseris apargioides var. eastwoodiae A. G. Vestal 1955-5-31 s.n. San Mateo Near Pebble Beach off Route 1. (NAD 27; 37.2369? deg. North Latitude, 122.4153? deg. West Longitude, UTM Zone 10, 551863mE, 4121109mN). [GPS Coordinate: WGS84/NAD83]. Comment
  CAS-BOT-BC23021  Agoseris grandiflora var. grandiflora A. D. E. Elmer 1903-4-1 4490 San Mateo Crystal Springs Lake 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
  CAS-BOT-BC46174  Agoseris heterophylla John H. Thomas 1974-4-11 17137 San Mateo To the SE of Canada Road and Edgewood Road. NW of Woodside. 152 Comment
  CAS-BOT-BC22831  Agoseris heterophylla var. cryptopleura Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon. Comment
  CAS-BOT-BC15235  Agoseris hirsuta David D. Keck 1932-5-6 1461 San Mateo near Belmont Comment
  POM52180  Agoseris hirsuta C. F. Baker 1902-5-4 884 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC15234  Agoseris hirsuta W. R. Dudley 1894-5-14 s.n. San Mateo Fields southwest of Boulder Comment
  CAS-BOT-BC15247  Agoseris hirsuta Elizabeth McClintock; Phillip C. Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain, top of ridge East of Nike Station Comment
  UCD51853  Agrostis capillaris var. aristata John Thomas Howell 1975-9-25 51509 San Mateo San Bruno Mountain. Comment
  SJSU15804  Agrostis densiflora Toni Corelli 2015-5-3 1192 San Mateo Northern edge of Fitzgerald Marine Reserve, Moss Beach also know as Vallemar Bluff 14 Comment
  UCD37958  Agrostis densiflora Beecher Crampton 1962-6-11 6489 San Mateo San Mateo County, northern city limits of Pacifica, along State Highway 1, just southwest of its junction with Skyline Boulevard. Comment
  UCD52025  Agrostis densiflora Beecher Crampton 1957-6-9 4166 San Mateo State Hwy. 1, 5 miles south of San Francisco. Comment
  JROH4783  Agrostis exarata W. Lennihan 1990-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Mapache trail, 100 yards south of Trail 10, right side of trail. 112 Comment
  RSA523957  Agrostis exarata Gordon H. True Jr. 1937-10-16 849 San Mateo Near Thornton Beach 259 Comment
  CAS-BOT-BC138865  Agrostis microphylla Le Roy Abrams 1902-5-11 2458 San Mateo Crsystal Springs. 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
  JROH4828  Aira caryophyllea John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7594518 Image available Aira caryophyllea A. D. E. Elmer 1903-1 4705 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC138245  Aira caryophyllea var. caryophyllea W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of Sneath Ranch Hills. Comment
  CAS-BOT-BC138249  Aira caryophyllea var. caryophyllea John H. Thomas 1958-3-19 7050 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 91 Comment
  UC814494  Alisma plantago-aquatica Lewis S. Rose 1941-9-13 41440 San Mateo stream bottom San Mateo Canyon 60 Comment
  JROH4545  Allium amplectens John Hunter Thomas 1986-5-8 24028 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4552  Allium falcifolium John Hunter Thomas 1981-4-23 20473 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA2746  Allium neapolitanum J. E. McClellan, B. McClellan Apr 1972 San Mateo Bernal Avenue, Burlingame. 0 Comment
  UCD138563  Allium neapolitanum H. Frederick 1972-4-1 s.n. San Mateo Bernal Ave., Burlingame. Comment
  JROH4564  Allium peninsulare var. franciscanum John H. Thomas 1968-5-22 14461 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC474301  Allium unifolium Philip C. Wheeler 1965-5-18 s.n. San Mateo Upper Colma Canyon near creek Comment
  JROH1327  Alnus rhombifolia John H. Thomas 1971-5-30 15981 San Mateo Jasper Ridge Biological Preserve, Stanford University; along creek below dam Comment
  CAS-BOT-BC169339  Alnus rubra J. W. Gillespie 1925-4-18 s.n. San Mateo Ano [Ano] Nuevo Pt. Comment
  CAS-BOT-BC169342  Alnus rubra John H. Thomas 1955-3-18 4686 San Mateo 2.5 miles up Tunitas Creek Road (as measured along the road) from the ocean 60 Comment
  CAS-BOT-BC44932  Ambrosia chamissonis John H. Thomas 1963-7-19 10187 San Mateo Ano Nuevo Island, about 1/2 miles off shore and above 20 miles NW of Santa Cruz Comment
  SBBG45023  Ambrosia chamissonis L. S. Rose 1935-9-29 35653 San Mateo Granada 3 Comment
  CAS-BOT-BC136832  Amelanchier utahensis Elizabeth McClintock; Phillip Wheeler 1967-5-14 s.n. San Mateo Vicinity of fence separating Brisbane from Crocker Estate portion of mountain Comment
  JROH1345  Amsinckia menziesii John H. Thomas 1966-4-29 11589 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA88321  Amsinckia spectabilis Alice Eastwood 1915-6-13 4723 San Mateo Granada. Comment
  CAS-BOT-BC389663  Anagallis arvensis Gail Metzger 1963-3-30 s.n. San Mateo Coyote Point Comment
  JROH3373  Anagallis minima John H. Thomas 1973-4-14 16563 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM204322  Anaphalis margaritacea I. L. Wiggins 1929-7-4 3784 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  UC178881  Anaphalis margaritacea Katharine Brandegee 1913-8-11 San Mateo Tobin Comment
  CAS-BOT-BC45187  Anaphalis margaritacea Walter Knight; Irja Knight 1964-3-15 576 San Mateo San Bruno Mountain, Colusa Canyon Comment
  CDA10065  Anaphalis margaritacea A. C. Browne 1950-8-12 San Mateo Alpine Creek. 0 Comment
  CAS-BOT-BC391918  Anemone grayi Josephine D. Randall 1908-4-12 s.n. San Mateo Santa Cruz Peninsula. King's Mt. Comment
  CDA38223  Angelica hendersonii T. C. Fuller 1957-10-2 407 -57 San Mateo San Gregorio. 0 Comment
  POM132666  Angelica tomentosa var. tomentosa A. D. E. Elmer 1903-07 4998 San Mateo Crystal Springs Lake, southern end Comment
  UC1080539  Anisocarpus madioides S. S. Tillett and I. Sternback 1956-6-24 529 San Mateo n of (behind) Portola Camp Store (just outside Portola State Park, Middleton property) 396 Comment
  CAS-BOT-BC273175  Anisocarpus madioides W. R. Dudley 1900-5-19 s.n. San Mateo Santa Cruz Mountain Peninsula. By road near La Honda Summit 213 Comment
  CAS-BOT-BC273179  Anisocarpus madioides W. R. Dudley 1895-9-15 s.n. San Mateo Santa Cruz Mountain Peninsula. El Corte Madera Creek near Lumber Camp Comment
  JROH510  Anthemis cotula John Hunter Thomas 1985-5-21 23668 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the low-flow crossing of San Francisquito Creek Comment
  JROH500  Anthemis cotula John H. Thomas 1974-6-27 17453 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the low flow crossing below Searsville Dam Comment
  CAS-BOT-BC280649  Anthoxanthum occidentale A. D. E. Elmer 1902-3-1 4124 San Mateo King's Mt. Comment
  SEINET7614641 Image available Anthoxanthum occidentale A. D. E. Elmer 1902-1 4124 San Mateo King's Mt. Comment
  UC2013133  Antirrhinum orontium Neal Kramer 2012-4-27 2044 San Mateo Moss Beach Hills approximately 3/4 mile north of the Half Moon Bay Airport entrance. Comment
  CAS-BOT-BC454494  Aphanes occidentalis John H. Thomas 1971-5-2 15831 San Mateo Serpentine fields near intersection of Canada and Edgewater roads. About 4 miles SW of center of Redwood City. 304 Comment
  CAS-BOT-BC451563  Aponogeton distachyos Peter Rubtzoff 1954-2-11 1451 San Mateo Skyline Blvd. near the junction of Chinese Cemetery Road. Comment
  CAS-BOT-BC392065  Aquilegia eximia A. D. E. Elmer 1903-7-1 4952 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC392069  Aquilegia eximia George Oberlander 1950-6-3 1095 San Mateo San Francisco Watershed Reserve. Near south boundary Comment
  CAS-BOT-BC405851  Aquilegia formosa Alice Eastwood 1912-6-10 340 San Mateo Crystal springs Comment
  UC1537326  Aquilegia formosa Gordon H. True Jr. 1936-4-5 388 San Mateo canyon betw san Gregorio adn Pescadero 152 Comment
  POM150408  Aquilegia formosa var. truncata C. F. Baker 1902-3-30 422 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC17317  Arabis blepharophylla Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountains. Cable Ravine. Comment
  CAS-BOT-BC17334  Arabis blepharophylla Peter H. Raven 1967-2-18 20828 San Mateo Off Crocker Avenue, Daly City, just south of San Francisco County Line. Comment
  UC1300998  Arabis glabra Helen K. Sharsmith 1963-2-16 5142 San Mateo above Daly City (lower slopes of San Bruno Mountain); San Francisco Bay Region, San Bruno Mountain 106 Comment
  CAS-BOT-BC128626  Arbutus menziesii Elmer I. Applegate 1895-3-9 315 San Mateo Woodside Comment
  CAS-BOT-BC128627  Arbutus menziesii Josephine D. Randall 1907-4-27 136 San Mateo King's Mt. Road - Santa Cruz Peninsula Comment
  CAS-BOT-BC128668  Arbutus menziesii Elizabeth McClintock; Walter Knight; Irja Knight 1964-9-11 s.n. San Mateo South of Brisbane on side hill by Frontage Road - San Bruno Mountain Comment
  CAS-BOT-BC24156  Arctostaphylos John H. Thomas 1967-2-9 12402 San Mateo Montara Mountain in Northern part of county. Between Pacifica and Montara. Comment
  CAS-BOT-BC24163  Arctostaphylos John H. Thomas 1967-2-9 12403 San Mateo Montara Mountain in Northern part of county. Between Pacifica and Montara. Comment
  CAS-BOT-BC24171  Arctostaphylos andersonii Gary D. Wallace 1974-12-28 1375 San Mateo Northern Santa Cruz Mtns. S of Upper Crystal Springs Res. along Skyline Blvd. 2.8 mimi N of jct. of King Mtn. Rd. oppos 640 Comment
  SEINET11987183  Arctostaphylos andersonii var. imbricata W. Knight, Knight, I. 1981-1 3931 San Mateo Tilden Botanic Garden, Berkeley, originally from San Bruno Mt Comment
  CAS-BOT-BC23511  Arctostaphylos crustacea C. F. Baker 1902-3-18 327 San Mateo King's Mountain Comment
  SEINET12524566 Image available Arctostaphylos crustacea L. S. Rose 1942-1 42007 San Mateo Kings mountain. 600 Comment
  CAS-BOT-BC25169  Arctostaphylos crustacea subsp. crinita Roman Gankin 1966-5-17 739 San Mateo ca. 0.4 mile NE of Peak Mountain of Montara Mountain Range 487 Comment
  JROH1923  Arctostaphylos crustacea subsp. crustacea L. R. Abrams 1910-8-14 4991 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1937  Arctostaphylos crustacea subsp. crustacea John Rawlings 2008-1-30 0930 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near ridgetop north of Trail b (start uphill from trail b at first serpentine contact). 162 Comment
  SEINET11988208  Arctostaphylos glandulosa W. Knight, Raiche, R. 1982-1 4418 San Mateo San Bruno Mountain, Buckeye Canyon on Oak Ridge 76 Comment
  CAS-BOT-BC24486  Arctostaphylos imbricata Elizabeth McClintock; Arthur L. Menzies 1963-2-16 s.n. San Mateo Knoll nw. of first television tower, San Bruno Mt. Comment
  CAS-BOT-BC24499  Arctostaphylos imbricata B. A. Stein 1981-3-1 442 San Mateo San Bruno Mt., ne. summit ridge along Radio Rd. 396 Comment
  SBBG32379  Arctostaphylos imbricata L. S. Rose 1961-3-2 61014 San Mateo San Bruno Hills 365 Comment
  RSA502351  Arctostaphylos imbricata D. W. Taylor 1988-4-29 9584 San Mateo San Bruno Mountain, northern slope of mountain 0.3 miles N22deg. W of summit (as depicted on San Francisco South 7.5' USGS quadrangle) 371 Comment
  CAS-BOT-BC27159  Arctostaphylos montaraensis W. Knight; Irja Knight 1967-1-19 2056 San Mateo Montara Mt. 335 Comment
  CAS-BOT-BC38524  Arctostaphylos montaraensis Walter Knight; Irja Knight 1981-1-25 3933 San Mateo Collected from San Bruno Mt. Comment
  UCD166092  Arctostaphylos montaraensis Mike Vasey 2016-3-10 s.n. San Mateo North end of Montara Mtn on Brooks Cr. Tr., ca 1 mi. from trailhead, San Pedro County Park. 121 Comment
  CAS-BOT-BC38525  Arctostaphylos montaraensis Walter Knight; Irja Knight; James B. Roof; Gregory Whipple; Al Senenes 1969-9-22 2790 San Mateo 1 mi. w. of Scarper peak jct. enroute Montara Mt. on San Francisco Water Dept. property. 304 Comment
  JEPS88612  Arctostaphylos montaraensis unknown May 1961 San Mateo Pacific Ridge Comment
Read comments
Jan 23 2011
  SEINET11987328  Arctostaphylos montaraensis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4203 San Mateo Strybing Arboretum, San Fran., Golden Gate Park, orig. few yds NE of Pacific Rock on San Bruno Mt Comment
  UCD51971  Arctostaphylos pacifica Robert F. Thorne; P. C. Everett 1963-6-9 32223 San Mateo On top of San Bruno Mt. near TV tower. Comment
  RSA119223  Arctostaphylos regismontana John H. Thomas 1954-2-13 3686 San Mateo Along Skyline Highway between Kings Mt. Road and La Honda Road. 609 Comment
  RSA636740  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24633 San Mateo NW side of Montara Mtn. 150 Comment
  RSA636742  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24637 San Mateo NW side of Montara Mtn. 150 Comment
  CAS-BOT-BC44670  Arctostaphylos sensitiva W. R. Dudley 1906-3-10 s.n. San Mateo By road S. W. of Crystal Spr Reservoir. - Santa Cruz Mountain Peninsula Comment
  SEINET11989290  Arctostaphylos tomentosa S. W. Edwards 1982-1 s.n. San Mateo Foothill Park near summit of SW ridge Comment
  SEINET11989291  Arctostaphylos tomentosa S. W. Edwards 1982-1 s.n. San Mateo Foothill Park near summit of SW ridge Comment
  HSC7756  Arctostaphylos tomentosa subsp. crustacea L. S. Rose 1969-3-27 69006 San Mateo Kings Mountain Road, 4 mi. W of Woodside 305 Comment
  JEPS48592  Arctostaphylos tomentosa subsp. crustacea James G. Daly 1934-1 580 San Mateo San Gregorio watershed Santa Cruz Mts. Comment
  POM132204  Arctostaphylos tomentosa subsp. crustacea A. D. E. Elmer 1903-05 4558 San Mateo Kings Mountain. 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
  UC1120127  Arctostaphylos tomentosa subsp. crustacea C. M. Belshaw 1935-1-25 1471 San Mateo 2 1/2 mi nw Sierra Moreno Peak; Santa Cruz Quadrangle 609 Comment
  CAS-BOT-BC46828  Arctostaphylos uva-ursi Mrs. Campbell; Mrs. Miere s.n. San Mateo San Bruno hills Comment
  CAS-BOT-BC46833  Arctostaphylos uva-ursi Arthur Menzies 1963-3-10 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC46836  Arctostaphylos uva-ursi Walter Knight; Irja Knight 1965-2-28 864 San Mateo San Bruno Mt. Up Cable Ravine off Radis Road. Comment
  SJSU6081  Arctostaphylos uva-ursi S. H. Casey 1969-5-18 256 San Mateo near summit of San Bruno Mt Comment
  UCD52147  Arctostaphylos uva-ursi Walter and Irja Knight; Elizabeth McClintock 1982-3-27 4495 San Mateo From Kamchatka Point, San Bruno Mountain, San Mateo County. 320 Comment
  SEINET11987302  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4208 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from upper Cable Ravine, San Bruno Mts Comment
  SEINET11987491  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4208 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from upper Cable Ravine, San Bruno Mt Comment
  SEINET11987195  Arctostaphylos uva-ursi var. suborbiculata W. Knight, Knight, I. 1981-1 3917 San Mateo Tilden Botanic Garden, Berkeley, orig. from Kamchatka Point on San Bruno Mt Comment
  CDA24519  Argemone mexicana John Beall 2007-8-8 PDR# 1461634 San Mateo San Mateo; Golden Nursery, 1122 2nd Ave. Comment
  CAS-BOT-BC520412  Armeria Daniel Cohen 1953-5-9 88 San Mateo Between San Gregorio and Pescadero Comment
  CAS-BOT-BC47694  Armeria maritima subsp. californica David D. Keck 1934-7-7 2942 San Mateo Pigeon Point Comment
  CAS-BOT-BC47695  Armeria maritima subsp. californica Otto M. Sokol 1953-5-9 81 San Mateo Pebble Beach Comment
  CAS-BOT-BC47707  Armeria maritima subsp. californica W. R. Dudley 1896-4-18 s.n. San Mateo Pebble Beach Pasture, Pescadero Comment
  CAS-BOT-BC84884  Artemisia californica Walter Knight; Irja Knight 1963-7-14 297 San Mateo San Bruno Mountain, ridge above Buckeye Canyon Comment
  CAS-BOT-BC84885  Artemisia californica Walter Knight; Irja Knight; Elizabeth McClintock 1964-9-11 s.n. San Mateo San Bruno Mountain, Point San Bruno Comment
  JROH516  Artemisia californica John H. Thomas 1964-11-29 10538 San Mateo Jasper Ridge Biological Preserve, Stanford University; E end of Searsville Dam Comment
  SD87616  Artemisia californica Frank W. Peirson 1925-9-13 6429 San Mateo Rockaway Beach Comment
  CAS-BOT-BC93932  Artemisia douglasiana R. E. Frenkel 1963-12-7 333 San Mateo San Francisco Water District, Whiting Ridge Road, ca. 0.8 mile south-west of Spring Valley Road, at Fire Warden's Gate Comment
  RSA51401  Artemisia douglasiana L. S. Rose 1949-8-10 49155 San Mateo Crystal Springs Lake Comment
  UC943016  Artemisia douglasiana Lewis S. Rose 1940-8-10 49155 San Mateo Crystal Springs Lake Comment
  RSA17888  Artemisia douglasiana C. B. Wolf 1927-7-29 s.n. San Mateo Summit La Honda Grade Comment
  CAS-BOT-BC93638  Artemisia pycnocephala C. B. Wolf 1930-11-5 1062 San Mateo 4 miles south of Pescadero 7 Comment
  POM212012  Artemisia pycnocephala C. B. Wolf 1930-11-5 1062 San Mateo 4 mi. S of Pescadero. 8 Comment
  JROH428  Asclepias fascicularis Richard L. Garber 1971-7-13 57 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18383  Asclepias fascicularis C. B. Wolf 1927-7-1 s.n. San Mateo Above Emerald Lake, back of Redwood City Comment
  RSA128844  Aster chilensis W. R. Dudley 1895-9-21 s.n. San Mateo Meulo Park Comment
  CAS-BOT-BC186751  Astragalus gambelianus W. R. Dudley 1894-4-21 s.n. San Mateo Below Crystal Springs Dam Comment
  POM16331  Astragalus nuttallii C. F. Baker 1903-6-30 3358 San Mateo Pillar Point Comment
  RSA10287  Astragalus nuttallii H. A. Barker 1927-5-14 658 San Mateo North of Half Moon Bay. Comment
  CAS-BOT-BC186569  Astragalus nuttallii var. virgatus C. F. B. 1903-6-30 3358 San Mateo Pillar Point Comment
  CHSC40740  Astragalus nuttallii var. virgatus Delzie Demaree 1933-6-12 10376 San Mateo Baden Station, South San Francisco. Comment
  SFV1786  Astragalus nuttallii var. virgatus W. R. Russell 1966-8-17 s. n. San Mateo On side of hill at north end of Princeton Beach, about 2 miles south of Moss Beach. Comment
  CAS-BOT-BC66142  Athyrium filix-femina var. cyclosorum John Thomas Howell 1926-10-9 2218 San Mateo Near Lake San Andreas Comment
  UC688910  Athyrium filix-femina var. cyclosorum John Thomas Howell 1926-10-9 2218 San Mateo near Lake San Andreas Comment
  POM143746  Athysanus pusillus C. F. Baker 1902-4-6 456 San Mateo Crystal Springs Lake. Comment
  UC136114  Athysanus pusillus C. F. Baker 1902-4-6 456 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC170571  Atriplex J. H. Thomas 1958-10-21 7486 San Mateo Near intersection of Bayshore highway and Main Street, Redwood City. Comment
  UCD39016  Atriplex californica Beecher Crampton 1962-6-11 6514 San Mateo Pacifica, Rockaway Beach, State Hwy. 1. Comment
  UC580053  Atriplex hortensis Ira L. Wiggins 1934-8-11 6969 San Mateo Redwood City Redwood City (salt flats beside tannery) Comment
  UC583161  Atriplex leucophylla Lewis S. Rose 1936-8-16 36713 San Mateo Granada Granada (Sea Beaches) 3 Comment
  SEINET4135302  Atriplex leucophylla Lewis S. Rose 1941-9-27 41460 San Mateo Princeton, CA.; 0 2 Comment
  CAS-BOT-BC146082  Avena barbata T. C. Fuller 1969-6-12 18549 San Mateo Ca. 3 km. northeast of Pescadero. Comment
  JROH4842  Avena barbata W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9 Comment
  CAS-BOT-BC145958  Avena fatua J. H. Thomas 1955-4-15 4920 B San Mateo Along Bayshore Highway, east of San Carlos. Comment
  CAS-BOT-BC145734  Avena sativa Ned Cahill 1974-5-30 315 San Mateo About 3 miles westward from Redwood City. Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  CAS-BOT-BC68327  Azolla filiculoides Malcom A. Nobs; S. Galen Smith 1949-8-26 1593 San Mateo Mouth of Pescadero Creek Comment
  SEINET3292746 Image available Baccharis Craig B. Davis 1968-6-25 D- 81 San Mateo Hillside ca. 1 mi. south of junction beginning the north end of Skyline Blvd. Comment
  CAS-BOT-BC98696  Baccharis douglasii Theresa Gertrude Williamson 1923-8-4 s.n. San Mateo Near La Honda Comment
  POM289916  Baccharis douglasii Lyman Benson 1937-7-25 8471 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  RSA18494  Baccharis douglasii C. B. Wolf 1927-7-14 626 San Mateo 1 mile west of summit of La Honda Grade Comment
  RSA40259  Baccharis douglasii L. S. Rose 1946-7-14 46220 San Mateo Searsville Lake 69 Comment
  JROH539  Baccharis glutinosa John Hunter Thomas 1981-9-24 20751 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15816  Baccharis glutinosa John Rawlings, Ken Hickman 2016-7-21 1901 San Mateo Serpentine seep area (Fountain thistle seep) up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  CAS-BOT-BC99509  Baccharis pilularis E. M. Zeile 1921-7-30 s.n. San Mateo Salada Comment
  CAS-BOT-BC99512  Baccharis pilularis P. C. Everett 1934-8-19 6069 San Mateo Pescadero 198 Comment
  CAS-BOT-BC99519  Baccharis pilularis John H. Thomas 1976-10-7 18397 San Mateo Along coast highway #1, 0.6 miles north of northern most road to Pigeon Pt. Lighthouse. About 4.2 miles almost due south 30 Comment
  CAS-BOT-BC99523  Baccharis pilularis Ned Cahill 1974-4-18 118 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC99526  Baccharis pilularis Fred Hemphill 1973-4-22 792 San Mateo San Carlos, area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC99538  Baccharis pilularis C. F. B. 1902-10-1 1740 San Mateo Pillar Point Comment
  POM350433  Baccharis pilularis Edith A. Purer 1932-7-18 4022 San Mateo Near Pigeon Point Comment
  POM350441  Baccharis pilularis D. D. Keck 1931-10-5 1283 San Mateo 1 mile north of Salada Beach 91 Comment
  RSA40137  Baccharis pilularis L. S. Rose 1948-11-14 48235 San Mateo Hills west of Belmont 183 Comment
  UC484307  Baccharis pilularis Carl B. Wolf 1930-11-5 San Mateo 4 mi s Pescadero 7 Comment
  UC942900  Baccharis pilularis Lewis S. Rose 1949-9-20 49181 San Mateo Sharp Park Comment
  JROH5742  Baccharis pilularis subsp. pilularis John Rawlings 2015-11-7 1648 San Mateo Jasper Ridge Biological Preserve, Stanford University; 55 yards up Rd E from its Trail 14 intersection. 122 Comment
  CAS-BOT-BC16619  Barbarea orthoceras Javier Penalosa 1963-2-23 2651 San Mateo San Bruno Mountains. Ravine south of Crocker Avenue. 213 Comment
  CAS-BOT-BC16620  Barbarea orthoceras Fred Hemphill 1973-4-8 621 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC16626  Barbarea orthoceras Fred Hemphill 1973-3-9 716 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC16638  Barbarea orthoceras James McMurphy 1907-5-25 s.n. San Mateo San Francisquito Creek, near Stone Crusher. Comment
  JROH1444  Barbarea orthoceras John H. Thomas 1974-4-4 17081 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR141422  Bellardia trixago June Latting 1975-6-8 s.n. San Mateo San Francisco Bay Region, Skyline Drive at Crystal Springs Reservoir 122 Comment
  HSC81971  Bellardia trixago Thomas W. Nelson, James Nelson 1980-5-3 5131 San Mateo Intersection of Hwy. 92 and Hwy. 280, W of San Mateo. Comment
  SJSU945  Berberis aquifolium W. M. Bybee 1948-2-20 San Mateo residence, Burlingame Comment
  NY31023  Blennosperma californicum A. D. E. Elmer 05 1903 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
  CAS-BOT-BC28211  Bolboschoenus fluviatilis Ida R. Hayward 1927-7-4 s.n. San Mateo By road crossing Crystal Springs Lake. Comment
  CAS-BOT-BC31087  Bolboschoenus maritimus Alice Eastwood 1915-6-13 4714 San Mateo Granada 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
  SJSU14136  Borago officinalis R. T. Ross 1975-3-2 San Mateo S side, Pillar Point Harbor, El Granada Comment
  UC140513  Bowlesia incana C. F. Baker 1902-4-12 510 San Mateo Pacific Coast, La Honda La Honda; Pacific Coast, La Honda Comment
  JROH4849  Brachypodium distachyon Herb Dengler 1977-6-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. West of Searsville Lake above beach Comment
  UCD57119  Brachypodium distachyon Peter H. Raven 1957-6-30 11015 San Mateo 1.8 miles east of Pescadero on road to La Honda. Comment
  CAS-BOT-BC30268  Brassica nigra R. Bacigalupi 1946-7-6 2794 San Mateo Near junction of Belmont-Las Pulgas roads, close to Crystal Springs Lake. Comment
  RSA195672  Brassica oleracea J. T. Howell 1966-5-28 11644 San Mateo In central part of Menlo Park near Post Office. Comment
Read comments
Jul 14 2014
  JROH1465  Brassica rapa John H. Thomas 1977-2-17 18464 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Whiskey Hill and Sand Hill Roads Comment
  JROH4867  Briza maxima John Hunter Thomas 1982-9-12 21156 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC145325  Briza minor H. A. Dutton 1900-4-17 s.n. San Mateo Santa Cruz Peninsula. Just east of Jasper on south side of roadside. Comment
  JROH4884  Briza minor John H. Thomas 1976-4-30 18102 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  JROH4888  Briza minor John Hunter Thomas 1983-4-5 21320 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along the low-flow crossing Comment
  JROH4890  Briza minor W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9, halfway to top Comment
  POM204993  Briza minor E. B. Copeland 1903-5-24 3257 San Mateo Along Crystal Springs Lake Comment
  SEINET4183120 Image available Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos. Comment
  UC306623  Briza minor A. D. E. Elmer May, 1903 4912 San Mateo Crystal Springs Lake Comment
  UC790954  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo near San Carlos Comment
  UCD57435  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos. 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
  SEINET11675202  Briza minor Unknown 1932-1 9112 San Mateo above Spring Valley Lakes Comment
  SEINET10932599  Brodiaea elegans Walter 1919-6-9 Walter s.n. 1919 San Mateo Woodside Comment
  JROH4587  Brodiaea terrestris subsp. terrestris John H. Thomas 1955-5-6 4979 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent grassy slopes Comment
  CAS-BOT-BC483172  Brodiaea terrestris subsp. terrestris Alice Eastwood 1912-6-10 334 San Mateo Crystal Springs Comment
  CAS-BOT-BC483181  Brodiaea terrestris subsp. terrestris Le Roy Abrams 1902-5-4 2427 San Mateo Near Woodside Comment
  CAS-BOT-BC144141  Bromus W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. San Mateo Creek. Comment
  RSA195508  Bromus carinatus John H. Thomas 1966-4-13 11558 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC148982  Bromus carinatus var. carinatus George Oberlander 1950-4-22 753 San Mateo San Francisco Watershed Reserve. San Andreas Valley. Comment
  CAS-BOT-BC148990  Bromus carinatus var. carinatus John H. Thomas 1961-5-7 9256 San Mateo San Bruno Mountain in northern part of county. 914 Comment
  CAS-BOT-BC149019  Bromus carinatus var. carinatus R. E. Frenkel 1963-12-7 327 San Mateo San Francisco Water District. Whiting Ridge Road, ca. 0.8 mile southwest of Spring Valley Road, at Fire Warden's Gate. Comment
  CAS-BOT-BC149022  Bromus carinatus var. carinatus Ned Cahill 1974-5-30 317 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City. Comment
  JROH4896  Bromus carinatus var. carinatus John H. Thomas 1984-4-2 23273 3 D San Mateo Jasper Ridge Biological Preserve, Stanford University. Low-flow crossing. Comment
  CAS-BOT-BC148764  Bromus carinatus var. marginatus Ira L. Wiggins 1929-5-10 3672 San Mateo At Pigeon Point. Comment
  CAS-BOT-BC148766  Bromus carinatus var. marginatus John H. Thomas 1963-5-20 10124 San Mateo Ano Nuevo Island, about one half mile off shore and 20 miles northwest of Santa Cruz. Comment
  CAS-BOT-BC148767  Bromus carinatus var. marginatus W. R. Dudley 1901-5-11 s.n. San Mateo Santa Cruz Mountain Peninsula. Between Colma and Lake Merced. Comment
  CDA31079  Bromus catharticus Robin Breckenridge, K. Filippini 2010-2-17 PDR# 1463753 San Mateo Pescadero: Bean Hollow Road (across from Bay Flower Company). 0 Comment
  CAS-BOT-BC155724  Bromus diandrus Paul Arnaud 1941-4-17 s.n. San Mateo Redwood City, Jefferson Avenue. Comment
  JEPS128397  Bromus diandrus Adam C. Schneider 2013-5-17 141 San Mateo Crystal Springs Reservoir Comment
  CAS-BOT-BC155137  Bromus hordeaceus Ned Cahill 1974-4-29 175 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City. Comment
  CAS-BOT-BC155140  Bromus hordeaceus Walter Knight; Irja Knight 1965-5-15 s.n. San Mateo San Bruno Mountain. Pig Ranch Ravine. Comment
  JROH4923  Bromus hordeaceus John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA195568  Bromus hordeaceus John H. Thomas 1966-4-24 11580 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH4937  Bromus laevipes W. Lennihan 1990-4-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Eastern draw, 40 yards down. Comment
  CAS-BOT-BC162308  Bromus madritensis George Oberlander 1950-5-6 766 San Mateo San Francisco Watershed Reserve. Lower Crystal Springs Lake. Comment
  JROH4941  Bromus madritensis subsp. madritensis John H. Thomas 1966-4-24 11584 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4950  Bromus madritensis subsp. rubens W. Lennihan 1989-5-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Right of Trail 9 -- going west (north side) Comment
  JROH4956  Bromus madritensis subsp. rubens John Rawlings 2013-4-16 1134 San Mateo Jasper Ridge Biological Preserve, Stanford University; Escobar Gate fenceline about 50 m east of the gate 156 Comment
  CAS-BOT-BC161750  Bromus rubens Fred Hemphill 1973-5-14 811 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC161753  Bromus rubens Ned Cahill 1974-4-30 217 San Mateo Near the inersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City. Comment
  OBI22365  Bromus sitchensis Lewis S. Rose 1963-4-27 63002 San Mateo Skyline Blvd, W of San Mateo 91 Comment
  UC1131105  Bromus vulgaris N. K. Carlson 1935-6-2 76 San Mateo Ridge between Oil Creek and Slate Creek 670 Comment
  CAS-BOT-BC233705  Buddleja davidii J. H. Thomas 1958-6-26 7288 San Mateo Along Skyline Blvd., about 0.3 miles north of Pulgas water temple. 91 Comment
  UC1301004  Cakile maritima Helen K. Sharsmith 1963-3-23 5251 San Mateo near Half Moon Bay; San Francisco Bay Region Comment
  CAS-BOT-BC185152  Calamagrostis nutkaensis A. D. E. Elmer 1903-6-1 4693 San Mateo San Pedro. Comment
  JROH3327  Calandrinia ciliata John H. Thomas 1977-4-8 18516 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC635366  Calandrinia ciliata Herbert L. Mason 1927-4-23 3691 San Mateo roadside between La Honda and Pescadero Creek Comment
  CAS-BOT-BC438533  Calandrinia ciliata Philip C. Wheeler 1965-5-12 s.n. San Mateo San Bruno Mountain. Pig Ranch Ravine. Comment
  JROH4605  Calochortus albus John H. Thomas 1976-5-26 18152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306641  Calochortus albus A. D. E. Elmer May 1903 4846 San Mateo San Mateo Comment
  UC843620  Calochortus albus Lewis S. Rose 1939-5-13 39115 San Mateo w of Burlingame 60 Comment
  CAS-BOT-BC492206  Calochortus albus Margaret A. Barry 1937-5-15 135 San Mateo Steep south slopes and woods on Coal Mine Ridge Comment
  JROH4615  Calochortus argillosus H. L. Mason 1921-6-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4622  Calochortus argillosus John H. Thomas 1974-6-30 17458 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC487809  Calochortus coeruleus K. Hoppaugh 1929-5-11 212 San Mateo La Honda grade Comment
  JROH4630  Calochortus luteus John H. Thomas 1969-5-28 15089 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC491978  Calochortus luteus Ned Cahill 1974-5-18 279 San Mateo Serpentine fields bordered by chaparral near the intersection of Canda and Edgewood roads, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC491980  Calochortus luteus R. Hoffough 1929-5-25 214 San Mateo Sand Hill Road, Palo Alto Comment
  CHSC13523  Calochortus tolmiei S. Villard 1974-4-28 4 San Mateo Found on King's Mt. Road, Woodside, ca. 1 mi w of Mounted Patrol Grounds. 152 Comment
  CHSC59836  Calochortus tolmiei Jan M. Karaz 1979-5-27 69 San Mateo 2.5 m north on Kings Mountain Road at the entrance to Huddart Park. 10 Comment
  CAS-BOT-BC493993  Calochortus tolmiei Carl B. Wolf 1929-5-22 3722 San Mateo Near base of LaHonda grade, Santa Cruz Mts. 182 Comment
  CAS-BOT-BC494042  Calochortus venustus L. R. Abrams 1930-6-1 1499 San Mateo Serpentine back of Redwood City Comment
  JROH559  Calycadenia multiglandulosa John H. Thomas 1959-8-22 8077 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC662579  Calycadenia multiglandulosa L. S. Rose 1941-6-12 41268 San Mateo hills w Redwood City; Emerald Lake 120 Comment
  SEINET11836279  Calycadenia multiglandulosa subsp. cephalotes L. S. Rose 1936-1 s.n. San Mateo Emerald Lake, W of Redwood City 91 Comment
  CAS-BOT-BC436447  Calystegia occidentalis Elizabeth McClintock; Phillip C. Wheeler 1967-6-11 s.n. San Mateo San Bruno Mountain, slope to S of new Guadalupe Parkway just before it meets Radio Road Comment
  CAS-BOT-BC224655  Calystegia purpurata subsp. purpurata Theo. C. Zschokke 1903-7-10 s.n. San Mateo Santa Cruz Mountain Peninsula. Goat Ranch Road, Corte de [Corte] Madera Cr. Comment
  CAS-BOT-BC224662  Calystegia purpurata subsp. purpurata Fred Hemphill 1973-5-6 764 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  JROH1842  Calystegia purpurata subsp. purpurata Toni Corelli 2010-5-19 369 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 8 129 Comment
  CAS-BOT-BC436444  Calystegia subacaulis John H. Thomas 1971-5-2 15827 San Mateo Near intersection of Canada and Edgewater [Edgewood?} Roads, about 4 miles SW of center of Redwood City 304 Comment
  CHSC447  Calystegia subacaulis V. Holt 1943-4-21 San Mateo 6 Comment
  RSA187227  Camissonia ovata John H. Thomas 1955-4-6 4839 San Mateo East facing slope of San Bruno Mountain just north of South San Francisco 30 Comment
  HSC16509  Camissonia ovata R. S. White 1965-4-19 42 San Mateo 4 mi. W of the Standford Golf Course on Sand Hill Rd. Comment
  RSA125833  Camissonia ovata G. R. Campbell 1956-4-4 3 San Mateo La Honda Rd (from Hwy 5) to Woodside, 3 mi from Mt Home-Portola road. 610 Comment
  CAS-BOT-BC160320  Camissoniopsis cheiranthifolia subsp. cheiranthifolia E. M. Zeile 1921-7-31 s.n. San Mateo Salada Comment
  SD38643  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Edith A. Purer 1934-8-14 5388 San Mateo 2.0 miles south of Pigeon Point. Comment
  UC306520  Camissoniopsis cheiranthifolia subsp. cheiranthifolia A. D. E. Elmer July 1903 4942 San Mateo San Pedro Comment
  CAS-BOT-BC160323  Camissoniopsis cheiranthifolia subsp. cheiranthifolia W. R. Dudley 1897-10-10 s.n. San Mateo By shore toward Pilar Point Comment
  JROH1644  Campanula griffinii John Hunter Thomas 1983-6-2 22332 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC153882  Campanula prenanthoides L. R. Abrams 1907-8-26 San Mateo Kings Mt. Comment
  SEINET10463021  Campanula prenanthoides Wolf 1927-7-14 WOLF 618 San Mateo SUMMIT OF KINGS MTN ROAD Comment
  SEINET10939010  Campanula prenanthoides Wolf 1927-7-14 WOLF 618 San Mateo Summit of Kings Mountain road Comment
  JROH1476  Capsella bursa-pastoris John Hunter Thomas 1983-4-5 21324 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  CAS-BOT-BC37687  Cardamine californica Lewis S. Rose 1936-3-11 36021 San Mateo Kings Mountain. 304 Comment
  POM143341  Cardamine californica var. integrifolia A. D. E. Elmer 1903-04 4468 San Mateo Portola. Comment
  CDA3669  Cardamine hirsuta Wm. Davis 1958-3-26 187 -58 San Mateo El Camino Real, San Mateo. 0 Comment
  JROH1504  Cardamine oligosperma John Hunter Thomas 1991-4-11 24982 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge Comment
  CAS-BOT-BC166949  Cardamine oligosperma Peter Rubtzoff 1977-6-7 9027 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC37991  Cardamine oligosperma Javier Penalosa 1963-3-9 2686 San Mateo San Bruno Mountain. Ravine 0.5 mile east of 1314 foot summit. 304 Comment
  UCD85499  Carduus pycnocephalus Alison Blake 2003-4-14 2 San Mateo Filoli botanical gardens. Section F-8, ESE of volunteer parking lot about 30 ft beyond P.L. entrance. Comment
Read comments
Jan 18 2012
  RSA395824  Carduus tenuiflorus Cynthia Taylor 1971-6-12 163 San Mateo Corner of Bragado Road and Old Country Road, Belmont 6 Comment
  JROH4318  Carex barbarae W. Lennihan 1989-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Indian Meadow just before Rattlesnake Rock. Comment
  SEINET7484300 Image available Carex barbarae Peter F. Zika 2010-1 24798 San Mateo Pescadero Road, c. 1 mile SE of Route 1 10 Comment
  CAS-BOT-BC19324  Carex barbarae George Oberlander 1950-4-18 513 San Mateo San Francisco Watershed Reserve. Marsh, south boundary. Comment
  CAS-BOT-BC19325  Carex barbarae Walter Knight; Irja Knight 1965-4-15 s.n. San Mateo San Bruno Mountain. Mouth of Colma Canyon. Comment
  CAS-BOT-BC19543  Carex bolanderi Lewis S. Rose 1933-6-23 33253 San Mateo Kings Mountain. Comment
  CAS-BOT-BC19540  Carex bolanderi George Oberlander 1950-5-21 946 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon. Comment
  CAS-BOT-BC34077  Carex brevicaulis Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5265 San Mateo Pigeon Point. Comment
  SEINET7552668 Image available Carex brevicaulis J. W. Stacey, Alice Eastwood, John Thomas Howell 1938-4-24 5265 San Mateo Pigeon Point. Comment
  CAS-BOT-BC18931  Carex densa George Oberlander 1950-5-6 917 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon. Comment
  JROH4333  Carex densa Toni Corelli 2005-4-20 285 San Mateo Jasper Ridge Biological Preserve, Stanford University; south of Road F 184 Comment
  CAS-BOT-BC18927  Carex densa W. R. Dudley 1906-6-10 s.n. San Mateo Santa Cruz Mountain Peninsula. By North Cahill Ridge Road. Comment
  UC823331  Carex densa Lewis S. Rose 1937-5-16 37279 San Mateo S San Francisco 15 Comment
  RSA304145  Carex dudleyi L. S. Rose 1937-4-30 37243 San Mateo Brisbane. 6 Comment
  JROH4345  Carex gracilior John Rawlings 2010-5-10 0987 San Mateo Jasper Ridge Biological Preserve, Stanford University. About five feet north (lakeside) of Leonard's bridge. 107 Comment
  SJSU15225  Carex harfordii Toni Corelli 2012-6-28 801 San Mateo Pescadero State Beach, North Pond 3 Comment
  POM248613  Carex harfordii J. T. Howell 1938-5-1 13781 San Mateo Near South San Francisco. Comment
  SEINET3904235  Carex montereyensis John A. Churchill 1974-4-14 7441413 San Mateo Half Moon Bay.; 0 Comment
  RSA100991  Carex obnupta G. Oberlander 1950-5-6 828 San Mateo Pilarcitos Lake. San Francisco Watershed Reserve. Comment
  UC1100481  Carex obnupta Malcolm A. Nobs and S. Galen Smith 1949-8-25 1575 San Mateo s Rockaway Beach Comment
  SEINET10711654  Carex obnupta Lewis S. Rose 1936-6-10 Rose 36317 San Mateo Chinese Cemetery, E. of Baden. 61 Comment
  SEINET7575211 Image available Carex serratodens Lewis S. Rose 1936-5-28 36304 San Mateo Emerald L, W of Redwood City. 91 Comment
  POM79200  Carex subbracteata A. D. E. Elmer 1903-06 4429 San Mateo Crystal Springs Lake. Comment
  UC836142  Carex subbracteata Alice Eastwood, John Thomas Howell 1937-5-7 4326 San Mateo Visitacion Valley Comment
  RSA364769  Carex subbracteata L. S. Rose 1939-4-14 39063 San Mateo South San Francisco. 15 Comment
  CAS-BOT-BC116818  Carex subbracteata var. subbracteata John Thomas Howell 1938-5-1 13779 San Mateo Near South San Francisco Comment
  CAS-BOT-BC116830  Carex subbracteata var. subbracteata W. R. Dudley 1900-3-17 s.n. San Mateo Field north of Seal Cove. Comment
  CAS-BOT-BC116833  Carex subbracteata var. subbracteata Roxana S. Ferris 1921-5-29 5197 San Mateo Roadside ditch near Arroyo de los Frijoles. Comment
  JROH4364  Carex tumulicola Herbert Dengler unspecified s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD140941  Carex tumulicola S. S. Tillett; I. Sternback 1956-6-25 543 San Mateo On Middleton property s. of road to Portola State Park, just before entrance. 396 Comment
  CAS-BOT-BC115508  Carex tumulicola Wilhelm Nikolaus Suksdorf 1928-7-5 12402 San Mateo Seeds from Crystal Springs Lake (grown in garden at Bingen, Wash) Comment
  CAS-BOT-BC115510  Carex tumulicola Phillip C. Wheeler 1965-5-18 s.n. San Mateo In area adjacent to Olivet Cemetery. Comment
  CAS-BOT-BC227609  Carex tumulicola Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1989-6-3 s.n. San Mateo San Bruno Mountains. Shearwater area 30 Comment
  RSA15335  Carpobrotus chilensis C. B. Wolf 1927-1-29 146 San Mateo Pescadero Comment
  SEINET11942215  Carpobrotus chilensis M. T. Doutt 1931-1 179 San Mateo Ano Nuevo Pt Comment
  UCSC007729  Carpobrotus chilensis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH4011  Castilleja H. J. Dengler 1961-7-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; bank of Corte Madera Creek in southern-most corner of the preserve Comment
  POM87996  Castilleja affinis L. R. Abrams 1902-5-20 2475 San Mateo Kings Mountain Comment
  RSA425889  Castilleja affinis Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  RSA120823  Castilleja affinis S. S. Tillett, I. Sternback 1956-6-25 550 San Mateo Along Patterson Creek, on Middleton property just above entrance to Portola State beach. 366 Comment
  SEINET12288584  Castilleja affinis Unknown 1952-1 108 San Mateo above Searsville Lake 427 Comment
  JEPS88802  Castilleja affinis subsp. affinis T. I. and F. M. Chuang 1991-7-3 7861 San Mateo 1 mi s Linda Mar (on Highway 1) Comment
  JROH3937  Castilleja affinis subsp. affinis Ellen Searby 1955-4-1 76 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JEPS47393  Castilleja affinis subsp. affinis L. R. Heckard 1964-6-24 1400 San Mateo along upper part of Monterey Road Pacifica Comment
  JEPS88800  Castilleja affinis subsp. affinis T. I. and F. M. Chuang 1991-7-3 7860 San Mateo 1.8 mi sw Interstate 280 junction with Route 92 (on Route 92) Comment
  LA209419  Castilleja ambigua David D. Keck; 1932-4-29 1453 San Mateo Burlingame-San Mateo city limits Comment
  RSA408815  Castilleja ambigua subsp. ambigua Francis W. Pennell, D. D. Keck 1940-5-15 25427 San Mateo Route 101. Burlingame. 0 Comment
  SD88447  Castilleja ambigua subsp. ambigua Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay Comment
  UC886508  Castilleja ambigua subsp. ambigua Alice Eastwood 1912-6-2 208 San Mateo Granada Comment
  JROH3956  Castilleja attenuata John H. Thomas 1973-4-14 16562 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC34849  Castilleja densiflora Thomas W. Nelson 1975-5-8 1808 San Mateo Beside Hwy. 280 S of San Francisco Comment
  UCD40891  Castilleja densiflora Nancy Dickenson 1983-4-23 117 San Mateo Jasper Ridge. Stanford Biological Preserve within 1 mile of Westridge Road entrance. Comment
  JROH3977  Castilleja densiflora subsp. densiflora John H. Thomas 1961-4-29 9189 San Mateo Jasper Ridge Biological Preserve, Stanford University; at western end of serpentine outcroppings Comment
  JROH3983  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
  JROH5616  Castilleja densiflora subsp. densiflora John Rawlings 2014-5-3 1220 San Mateo Jasper Ridge Biological Preserve, Stanford University. South of the power pole mound where dear-browsed shrubby coast live oaks begin transition into San Francisquito Creek riparian corridor. 89 Comment
  CHSC39846  Castilleja foliolosa Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  CHSC42072  Castilleja foliolosa J. P. Arts 1986-3-30 17 San Mateo Ca. 4.1 miles w of Saratoga on Hwy. 9, ca. 8 miles n of Boulder Creek. 914 Comment
  RSA15299  Castilleja foliolosa Carl B. Wolf 1927-4-3 269 San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  NY68073  Castilleja franciscana F. W. Pennell 1940-5-15 25420 San Mateo E of upper Crystal Springs Lake, SW of San Mateo. 61.0 Comment
  SEINET10744868 Image available Castilleja franciscana Francis W. Pennell 1940-5-15 Pennell 25420 San Mateo Dark adobe clay (roadbank). E. of upper Crystal Springs Lake, s.w. of San Mateo. 61 Comment
  CAS-BOT-BC243828  Castilleja latifolia David D. Keck 1932-5-11 1768 San Mateo Two miles north of San Gregorio Comment
  CAS-BOT-BC243834  Castilleja latifolia Peter H. Raven 1950-6-3 2267 San Mateo Near San Andreas Lake 121 Comment
  CAS-BOT-BC243840  Castilleja latifolia John Thomas Howell 1933-4-9 10966 San Mateo Hills south of Pescadero Comment
  CAS-BOT-BC243837  Castilleja latifolia Alice Eastwood 1914-10-1 s.n. San Mateo Mussel Rock Comment
  JROH3995  Castilleja rubicundula subsp. lithospermoides John H. Thomas 1961-4-29 9188 San Mateo Jasper Ridge Biological Preserve, Stanford University; at western end of serpentine outcroppings Comment
  SJSU661  Castilleja rubicundula subsp. lithospermoides A. W. Jacobs 1941-4-20 San Mateo Jasper Ridge above Searsville L Comment
  UC1012134  Castilleja rubicundula subsp. lithospermoides F. W. Pennell and D. D. Keck 1940-5-15 25413 San Mateo above Redwood City (Emerald Lake); Emerald Lake 45 Comment
  JEPS83044  Castilleja subinclusa subsp. franciscana Roy E. Buck, Randall A. Morgan, James A. West 1983-7-15 430 San Mateo ca 1.7 km sw Pilarcitos Dam (and 5.8 km nw of intersection of Calif Hwys 35 and 92, along crest of Cahill Ridge, on e side of gravel rd); San Francisco Watershed Reserve, Cahill Ridge 335 Comment
  UC1141005  Castilleja subinclusa subsp. franciscana Lawrence Beane 1949-6-2 455 San Mateo between La Honda and Pescadero Comment
  JEPS103891  Castilleja subinclusa subsp. franciscana T. I. Chuang and F. M. Chuang 1991-7-3 7859 San Mateo 0.8 mile SW from junction of Interstate 280 and rt. 92 on rt. 92 Comment
  CDA930  Castilleja wightii D. G. Kelch, B. G. Baldwin, Sue Bainbridge, Abigail Moore 2005-6-21 5 .371 San Mateo S.F. Water District land, near Spring Valley. NE corner Pilarcitos Lake. Comment
  JEPS19719  Castilleja wightii Peter H. Raven 1957-6-24 10965 San Mateo just s Linda Mar Comment
  JEPS34327  Castilleja wightii L. R. Heckard, and Rimo Bacigalupi 1963-7-2 1333 San Mateo nw slope Montara Mt. (above summit of old county road) 304 Comment
  POM15458  Castilleja wightii C. F. Baker 1902-4-12 508 San Mateo San Gregorio. Comment
  UC198390  Castilleja wightii Katharine Brandegee 1917-7-15 San Mateo Moss Beach Comment
  UC729641  Castilleja wightii Carl B. Wolf 1929-5-25 3730 San Mateo s of Pescadero (Pebble Beach); Pebble Beach Comment
  JEPS34453  Castilleja wightii L. R. Heckard 1963-7-18 1341 San Mateo 2.7 mi s Calif. Hwy. 1 road junction with Pescadero road (along Calif Hwy. 1); Bean Hollow Beach County Park (Arroyo de los Frijoles) Comment
  RSA18294  Castilleja wightii Carl B. Wolf 1927-6-21 423 San Mateo East slope of Kings Mt. Comment
  RSA505397  Castilleja wightii R. C. Bacigalupi, G. Thomas Robbins 1955-8-4 5451 San Mateo Along Skyline Blvd. (Calif. Highway No. 5) just west of Crystal Springs Lake (south lake); at a point 6.2 miles north of the junction with Kings Mtn. (not the La Honda) road. 396 Comment
  CAS-BOT-BC39376  Caulanthus lasiophyllus C. F. Baker 1902-4-6 459 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC39385  Caulanthus lasiophyllus Wilhelm Nikolaus Suksdorf 1913-6-23 258 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC39384  Caulanthus lasiophyllus Walter Knight; Irja Knight 1965-5-9 1103 San Mateo San Bruno Mountains. Devil's Arroyo. Comment
  CAS-BOT-BC40393  Caulanthus lasiophyllus Art Menzies; Barbara Menzies 1965-3-14 s.n. San Mateo San Bruno Mountains. South Power Line Ridge. Comment
  CAS-BOT-BC47933  Ceanothus Elizabeth McClintock 1974-11-13 s.n. San Mateo San Bruno Mountain Comment
  UC79930  Ceanothus Katharine Brandegee April 1889 65 San Mateo San Gregorio Comment
  CAS-BOT-BC51601  Ceanothus oliganthus var. sorediatus W. R. Dudley 1894-4-27 s.n. San Mateo Summit Springs, Kings Mt. Comment
  JROH3527  Ceanothus oliganthus var. sorediatus W. R. Dudley 1894-9-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Preston's ravine, Searsville Comment
  JROH3533  Ceanothus oliganthus var. sorediatus John Hunter Thomas 1981-5-25 20617 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM282997  Ceanothus oliganthus var. sorediatus Lyman Benson 1937-7-25 8467 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  RSA15203  Ceanothus oliganthus var. sorediatus Carl B. Wolf 1926-10-19 s.n. San Mateo Near La Honda. Santa Cruz Mts. Comment
  RSA34326  Ceanothus oliganthus var. sorediatus Paul R. Hichborn 1920-4-21 s.n. San Mateo Strawberry bend near Carte Madera Creek Comment
  CAS-BOT-BC51244  Ceanothus papillosus R. Hoffough 1929-5-8 s.n. San Mateo King's Mountain Comment
  CAS-BOT-BC51245  Ceanothus papillosus Josephine D. Randall 1907-4-27 317 San Mateo Santa Cruz Peninsula - King's Mountain Comment
  CAS-BOT-BC51851  Ceanothus papillosus W. R. Dudley 1902-5-17 s.n. San Mateo Kings Mountain Road Comment
  RSA130954  Ceanothus papillosus Josephine Randall 1907-6-29 s.n. San Mateo Santa Cruz Peninsula, King's Mountain Road. Comment
  CAS-BOT-BC52289  Ceanothus thyrsiflorus David D. Keck 1932-5-11 1773 San Mateo Three miles West of Kings Mountain, on road to Tunitas, west slope of Santa Cruz Mountains 457 Comment
  CAS-BOT-BC52290  Ceanothus thyrsiflorus Ira L. Wiggins 1925-4-1 1654 San Mateo On Kings Mountain Road three fourths of a mile above Woodside Comment
  CAS-BOT-BC52296  Ceanothus thyrsiflorus Sue Roberts 1954-5-1 58 San Mateo La Honda, 7 miles east of La Honda Comment
  CAS-BOT-BC52304  Ceanothus thyrsiflorus A. D. E. Elmer 1903-6-1 4603 San Mateo Lake San Andreas Comment
  CAS-BOT-BC52305  Ceanothus thyrsiflorus Marian L. Campbell 1915-6-18 s.n. San Mateo San Bruno hills Comment
  HSC18329  Ceanothus thyrsiflorus L. S. Rose 1963-4-27 63004 San Mateo La Honda 122 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
  RSA172196  Ceanothus thyrsiflorus Robert F. Thorne, Percy C. Everett 1963-6-9 32241 San Mateo On top of San Bruno Mountain on Kamchatka Point near the TV tower. 335 Comment
  UC1174506  Ceanothus thyrsiflorus LeRoy Abrams 1902-5-20 2463 San Mateo King's Mountain Comment
  SEINET12209977  Ceanothus thyrsiflorus Unknown 1932-1 8972 San Mateo Comment
  UC463564  Centaurea calcitrapa L. R. Abrams and I. L. Wiggins 1930-11-13 174 San Mateo above Crystal Springs Lake Comment
  CAS-BOT-BC274584  Centaurea calcitrapa Evelina Cannon 1896-1-1 s.n. San Mateo San Mateo Comment
  CAS-BOT-BC274587  Centaurea calcitrapa George Oberlander 1949-9-25 395 San Mateo San Francisco Watershed Reserve. North of San Andreas Lake Comment
  JROH604  Centaurea solstitialis John Hunter Thomas 1977-6-16 18761 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM296667  Centaurium davyi L. S. Rose 1941-6-19 41280 San Mateo Kings Mountain Road, three miles west of Woodside. 183 Comment
  SJSU15418  Centaurium tenuiflorum Toni Corelli 2011-8-25 708 San Mateo Ano Nuevo State Park, Cove Beach 7 Comment
  CAS-BOT-BC389675  Centaurium tenuiflorum Maryann Danielson 1969-7-17 s.n. San Mateo Huddart Park along road below residence Comment
  JEPS38137  Centromadia parryi subsp. parryi L. M. Newlon 1921-1-1 239 San Mateo seashore from Salada to Mussel Beach Comment
  CAS-BOT-BC279323  Centromadia pungens subsp. pungens L. S. Rose 1941-10-10 41463 San Mateo Along the Bayshore Boulevard, San Mateo 3 Comment
  CAS-BOT-BC384957  Cerastium arvense David D. Keck 1932-3-27 1410 San Mateo Stanford University; near the quarry on Matadero Creek Comment
  JROH1689  Cerastium glomeratum John H. Thomas 1961-4-8 9078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH148  Ceratophyllum demersum John H. Thomas 1974-6-30 17464 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA112373  Cercocarpus betuloides James I. McMurphy 1906-4-4 18 San Mateo Los Francos Creek, Santa Cruz Mts Comment
  JROH3615  Cercocarpus betuloides var. betuloides A. D. E. Elmer 1903-5-1 4530 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  JROH3622  Cercocarpus betuloides var. betuloides John H. Thomas 1961-6-14 9541 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1950  Chamaesyce serpillifolia subsp. serpillifolia James McMurphy 1906-8-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  JROH1817  Chenopodium berlandieri var. sinuatum John Rawlings 2011-8-2 1100 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry bed of San Francisquito Creek near Dennis Martin site marker. 71 Comment
  RSA187281  Chenopodium californicum John H. Thomas 1965-4-29 10604 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  POM177325  Chenopodium macrospermum var. farinosum L. R. Abrams, I. Wiggins 1930-11-13 178 San Mateo Margin of pond at DSalada Beach. Comment
  JROH1828  Chenopodium vulvaria Toni Corelli 2005-8-14 304 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road H at Bear Creek 82 Comment
  CAS-BOT-BC497722  Chlorogalum pomeridianum Cherie Wetzel 1969-6-20 868 San Mateo Serpentine near Canada College, Redwood City, just off of Farm Hill Blvd Comment
  JROH4644  Chlorogalum pomeridianum var. pomeridianum George Pilz 1963-6-10 43 San Mateo Jasper Ridge Biological Preserve, Stanford University 60 Comment
  POM165065  Chorizanthe cuspidata var. cuspidata A. D. E. Elmer 1903-05 s.n. San Mateo San Pedro Comment
  JROH3222  Chorizanthe diffusa Le Roy Abrams 1901-5-20 1653 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB1025  Chrysolepis chrysophylla Muller, Cornelius 1951-1-28 San Mateo South of Pescadero Comment
  UC1135217  Chrysolepis chrysophylla var. minor C. M. Belshaw 1935-1-25 1469 San Mateo 2.5 mi nw Sierra Moreno Peak; Santa Cruz Quad. 457 Comment
Read comments
Oct 3 2011
  JROH2589  Cicendia quadrangularis John Hunter Thomas 1982-4-30 20883 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285235  Cichorium intybus Philip Wheeler 1966-10-16 s.n. San Mateo San Bruno Mountain. West end of Crocker Industrial Park. West of quarry Comment
  CAS-BOT-BC384618  Cirsium J. Lovelle 1973-7-21 280 San Mateo Mt. Ellen Trail Comment
  CAS-BOT-BC100940  Cirsium fontinale var. fontinale Lewis S. Rose 1959-6-18 59027 San Mateo Crystal Springs Lake near County Relief Home. Type Locality 121 Comment
  CAS-BOT-BC100943  Cirsium fontinale var. fontinale John Thomas Howell 1939-6-16 14746 San Mateo Crystal Springs Lake Comment
  SEINET5506212  Cirsium fontinale var. fontinale Lewis S. Rose San Mateo Comment
  JROH629  Cirsium occidentale var. occidentale John H. Thomas 1974-6-30 17466 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC280511  Cirsium quercetorum J. H. Thomas 1958-6-11 7227 San Mateo About 4.3 miles due east of Belmont near Crystal Springs Reservoir 91 Comment
  CAS-BOT-BC280502  Cirsium quercetorum John Thomas Howell 1939-6-16 14739 San Mateo Skyline Boulevard 4 miles w. of Burlingame Comment
  RSA0070862  Cirsium quercetorum E. B. Copeland 1903-6-7 3316 San Mateo Montara Point. Comment
  UC1211948  Cirsium vulgare Otto T. Solbrig 1958-8-3 2920 San Mateo near road Highway 5; Crystal Spring Lake 30 Comment
  CAS-BOT-BC285859  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
  HSC24013  Cirsium vulgare Mary Katherine Wicksten 1971-6-30 142 San Mateo Huddart Park, by horse ring Comment
  CAS-BOT-BC172090  Clarkia davyi Alice Eastwood 1912-6-10 335 San Mateo Crystal Springs Comment
  CAS-BOT-BC163978  Clarkia purpurea subsp. quadrivulnera Elizabeth McClintock; Phillip Wheeler 1967-5-14 s.n. San Mateo East side of mountain, above Harold Ave., Brisbane. Grassy slope above Philip Wheeler's house Comment
  CAS-BOT-BC164563  Clarkia purpurea subsp. viminea W. R. Dudley 1905-6-19 s.n. San Mateo Above Iverson's Place near Pescadero Creek Comment
  CAS-BOT-BC165149  Clarkia rubicunda Walter Knight; Walter Knight 1963-6-24 s.n. San Mateo Quarry 4 Comment
  CAS-BOT-BC165176  Clarkia rubicunda H. A. Dutton 1900-4-17 s.n. San Mateo Woodside Comment
  CAS-BOT-BC165177  Clarkia rubicunda A. D. E. Elmer 1903-6-1 4310 San Mateo Crystal Springs Lake Comment
  JROH3011  Clarkia rubicunda Richard L. Garber unspecified s.n. 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
  JROH3032  Clarkia rubicunda John Hunter Thomas 1983-7-7 22815 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  POM271814  Clarkia rubicunda Lyman Benson 1930-5-12 2122 San Mateo Stanford University, Lake Searsville 152 Comment
  UC114009  Clarkia rubicunda Katharine Brandegee 1908-7-26 San Mateo near Half Moon Bay; Moss Beach Comment
  CAS-BOT-BC165132  Clarkia rubicunda L. R. Abrams 1907-8-25 s.n. San Mateo Between [Pecadero] Pescadero and Half Moon Bay Comment
  CAS-BOT-BC165159  Clarkia rubicunda Lewis S. Rose 1957-7-6 57117 San Mateo Skyline Blvd. w. of San Mateo 182 Comment
  CAS-BOT-BC165174  Clarkia rubicunda Peter H. Raven 1957-6-30 11017 San Mateo 3.0 miles from State Highway 5 (Skyline Boulevard) on road to Portola State Park Comment
  RSA113581  Clarkia rubicunda Peter H. Raven 1957-6-30 11012 San Mateo Near bridge over Tunitas Creek along State Highway 1 Comment
  RSA113615  Clarkia rubicunda Peter H. Raven 1957-7-6 11055 San Mateo Along Tunitas Creek 2.0 miles from junction with State Highway 1. Comment
  UC1071887  Clarkia rubicunda H. and M. Lewis 1951-6-28 859 San Mateo 1.8 mi s Sharp Park Comment
  UC1279932  Clarkia rubicunda Peter H. Raven 1957-6-30 11013 San Mateo 1.8 mi n of bridge Pescadero Creek (State Highway 1) Comment
  UCSC005473  Clarkia rubicunda Randall Morgan 1998-7-28 3328 San Mateo N stretch of Stage Road off Hwy 1 Comment
  CAS-BOT-BC165605  Clarkia unguiculata Kent E. Holsinger 1979-5-16 10 b San Mateo Jasper Ridge Biological Preserve; 5 mi. SW of Stanford Univ. campus, on south facing slope of Searsville Lake 109 Comment
  CAS-BOT-BC439292  Claytonia exigua subsp. exigua Lewis S. Rose 1937-4-24 37227 San Mateo Emerald Lake. 106 Comment
  CAS-BOT-BC439591  Claytonia parviflora subsp. parviflora John H. Thomas 1963-5-20 10097 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  UCD100726  Claytonia perfoliata E. Jacqueline Garcia 1986-4-19 s.n. San Mateo San Bruno Mountains, 0.25 mile from Summit Loop trailhead on Guadeloupe Canyon Road. Comment
  CAS-BOT-BC439988  Claytonia perfoliata subsp. mexicana Elizabeth McClintock 1965-3-21 s.n. San Mateo San Bruno Mountain. Summit east of Brisbane Power Line Comment
  JROH3352  Claytonia perfoliata subsp. perfoliata John Hunter Thomas 1983-4-2 21302 San Mateo Jasper Ridge Biological Preserve, Stanford University; by Rattlesnake Rock Comment
  CAS-BOT-BC91484  Clematis lasiantha L. R. Abrams 1914-4-2 5076 San Mateo Woodside. Comment
  CAS-BOT-BC91485  Clematis lasiantha C. F. Baker 1902-4-12 499 San Mateo La Honda. Comment
  RSA195552  Clematis lasiantha John H. Thomas 1966-4-29 11586 San Mateo Jasper Ridge Biological experimental area, 5 miles SW of Palo Alto. Comment
  SEINET12087591  Clematis lasiantha L. R. Abrams 1914-1 5076 San Mateo Woodside Comment
  SEINET12099147  Clematis lasiantha Unknown 1932-1 9022 San Mateo Los Trancos Woods Comment
  CAS-BOT-BC92558  Clematis ligusticifolia Josephine D. Randall 1907-6-6 306 San Mateo Santa Cruz Peninsula. Los Trancos Road near Stanford University. Comment
  JROH3422  Clematis ligusticifolia Toni Corelli 2007-8-28 336 b San Mateo Jasper Ridge Biological Preserve, Stanford University; below Trail 2, above San Francisquito Creek along embankment 71 Comment
  JROH2871  Clinopodium douglasii H. A. Lewis 1908-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  UCD164461  Clinopodium douglasii Peter Rubtzoff 1977-6-21 9064 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  UCD18535  Clinopodium douglasii Roman Gankin 1950-6-25 2 San Mateo about 2 miles from Alameda de Las Puigas Rd., behind Stanford University, off Sandhill Rd. Comment
  CAS-BOT-BC499372  Clintonia andrewsiana J. H. Thomas 1954-4-3 3823 San Mateo Along San Gregorio Creek, 1.5 mi w of La Honda 106 Comment
  POM290456  Clintonia andrewsiana Lyman Benson 1930-6-14 2151 San Mateo La Honda, Santa Cruz Mtn. range. 213 Comment
  CAS-BOT-BC499398  Clintonia andrewsiana W. R. Dudley 1893-5-27 s.n. San Mateo Between Woodside and Summit Springs Comment
  RSA104881  Collinsia heterophylla E. F. Sprague 1956-5-28 s.n. San Mateo 2 miles below Skyline Drive on E. La Honda Road. Comment
  CAS-BOT-BC240923  Collinsia multicolor A. A. Heller 1907-4-25 8463 San Mateo San Bruno Hills Comment
  SD120833  Collinsia multicolor A. Paul Martin 1957-5-23 San Mateo Northern San mateo County; upper edge of town of Brisbane, southeastern slopes of San Bruno Hills 198 Comment
  JEPS127810  Collinsia sparsiflora Adam C. Schneider with C. Matt Guilliams 2013-4-7 72 San Mateo Comment
  JROH5707  Collinsia sparsiflora var. collina John Rawlings 2015-3-15 1349 B San Mateo Jasper Ridge Biological Preserve, Stanford University 110 Comment
  UCR121542  Collomia heterophylla George K. Helmkamp, E. A. Helmkamp 1999-6-28 4978 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  POM132669  Conium maculatum A. D. E. Elmer 1903-07 4957 San Mateo San Mateo Comment
  JROH1849  Convolvulus arvensis John Hunter Thomas 1982-7-2 21056 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  CAS-BOT-BC344849  Conyza Peter Rubtzoff 1987-11-27 9887 San Mateo San Bruno Mountains, Saddle area on north side of Guadalupe Canyon parkway west of Radio Road junction. Western upper edge of East Fork Colusa Creek Canyon. Comment
  SEINET5796159 Image available Cordylanthus pilosus L. S. Rose 1941-1 41362 San Mateo Woodside. Comment
  JEPS80893  Cordylanthus pilosus subsp. pilosus Monty Knudsen 1981-8-13 San Mateo w Redwood City; Edgewood Park Comment
  JROH4026  Cordylanthus pilosus subsp. pilosus Richard L. Garber 1971-7-13 86 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JEPS70048  Cordylanthus rigidus subsp. rigidus L. R. Heckard 1971-9-26 2828 San Mateo Kings Mt. road 4.4 mi above junction route 84 457 Comment
  UC885664  Cordylanthus rigidus subsp. rigidus Lewis S. Rose 1941-9-13 41441 San Mateo Crystal Springs Lake 182 Comment
  CAS-BOT-BC209819  Cornus glabrata Margaret A. Barry 1938-5-6 s.n. San Mateo Los Trancos Creek near Coal Mine Ridge Comment
  RSA0019451  Cornus glabrata C. B. Wolf 1931-8-20 2326 San Mateo Los Trancos Creek, 2 miles back of Stanford University, near Schenkel's Camp. 91 Comment
  JROH1867  Cornus sericea subsp. sericea John Hunter Thomas 1981-4-21 20460 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1333  Corylus cornuta subsp. californica John H. Thomas 1974-5-3 17246 San Mateo Jasper Ridge Biological Preserve, Stanford University; in redwood area below dam Comment
  POM270391  Corylus cornuta var. californica Lyman Benson 1931-2-28 2613 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  POM270408  Corylus cornuta var. californica Lyman Benson 1937-7-15 8455 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains; San Francisco Bay watershed. 244 Comment
  UC1755440  Cotoneaster hodjingensis Dean W. Taylor 2004-6-2 19078 San Mateo San Bruno Mountain, southeast margin of the radio towers at the summit 365 Comment
  CAS-BOT-BC141552  Cotoneaster pannosus Elizabeth McClintock; Paul Reedberg 1989-9-4 s.n. San Mateo West end of industrail park - San Bruno Mountains Comment
  JROH3636  Cotoneaster pannosus Judith Wagner 1974-11-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3644  Cotoneaster pannosus John Hunter Thomas 1983-6-2 22329 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC912224  Cotula coronopifolia Herbert L. Mason 1927-4-24 3707 San Mateo mouth of San Gregorio Creek Comment
  UCR141420  Cotula coronopifolia June Latting 1975-6-8 s.n. San Mateo Central Coast, slough across from Pescadero dump (on Bean Hollow Rd.), west of Pescadero 9 Comment
  CAS-BOT-BC291471  Cotula coronopifolia Margaret A. Barry 1938-5-14 254 San Mateo In Mud Lake on Coal Mine Ridge Comment
  SJSU2294  Cotula coronopifolia C. W. Sharsmith 1950-4-16 6623 San Mateo near Pescadero Point Comment
  JROH1890  Crassula connata John Hunter Thomas 1985-4-10 23516 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1888  Crassula connata John H. Thomas 1977-4-2 18509 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS50008  Crassula connata var. erectoides W. L. Jepson 1921-4-3 9106 San Mateo Colma Comment
  JROH3657  Crataegus monogyna John Hunter Thomas 1987-4-30 24212 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the trailers Comment
  JROH669  Crepis vesicaria subsp. taraxacifolia John Hunter Thomas 1989-5-9 24696 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4977  Crypsis schoenoides John Hunter Thomas 1979-9-9 19718 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4983  Crypsis schoenoides John Hunter Thomas 1980-11-27 20194 San Mateo Jasper Ridge Biological Preserve, Stanford University. Old bathing beach area Comment
  JROH6203  Cryptantha clevelandii var. florosa John Rawlings 2014-5-6 1232 San Mateo Jasper Ridge Biological Preserve, Stanford University; on the top of Trevor's Knoll, about 70 m north of Trail 10. 181 Comment
  RSA10273  Cryptantha clevelandii var. florosa H. A. Barker 1927-5-14 671 San Mateo North of Half Moon Bay. Comment
  JROH1359  Cryptantha flaccida John H. Thomas 1956-4-7 5617 San Mateo Jasper Ridge Biological Preserve, Stanford University; open serpentine area on top of ridge and adjacent slopes Comment
  SBBG32437  Cryptantha flaccida L. S. Rose 1966-5-2 66032 San Mateo Emerald Lake, W of Redwood City 91 Comment
  UC480685  Cryptantha flaccida H. F. Copeland 1920-6-1 11120 San Mateo near Woodside Comment
  SJSU15763  Cryptantha leiocarpa Toni Corelli 2010-5-17 627 San Mateo Pescadero State Beach and Marsh Natural Preserve, west side of Hwy. 1, along trail in dunes south of north parking lot 6 Comment
  JROH1364  Cryptantha micromeres Oz Garton 1968-5-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA44329  Cupressus abramsiana Harry A. Dutton 1949-9-12 s.n. San Mateo Common corners of Sec. 11 & 12 and 13 &14, Range 4 West, North bank of North Fork of Butano Creek Comment
  RSA44330  Cupressus abramsiana Harry A. Dutton 1949-9-12 s.n. San Mateo Common corners of Sec. 11 & 12 and 13 &14, Range 4 West, North bank of North Fork of Butano Creek Comment
  UC1086215  Cupressus abramsiana C. McMillan 1951-1-1 1621 San Mateo Butano Ridge Comment
  RSA704404  Cupressus abramsiana subsp. butanoensis John Silba 2004-12-28 B- 424 San Mateo CA., San Mateo County., Pescadero County Park, on Botano Ridge, ca. 5-5.5 miles East of Dearborn Park Road, 375 Comment
  RSA140852  Cupressus macrocarpa John H. Thomas 1960-8-28 8832 San Mateo Near Skyline Blvd. and Summit Dr. to the west of Hillsborough. Comment
  UC580080  Cuscuta salina var. major Ira L. Wiggins 1934-8-11 6970 San Mateo 1 mi n Redwood City (along Bayshore Highway) Comment
  CAS-BOT-BC287329  Cynara cardunculus J. H. Thomas 1958-10-21 7487 San Mateo Near intersection of Bayshore Highway and Main St, Redwood City, near slough Comment
  CAS-BOT-BC287331  Cynara cardunculus J. H. Thomas 1958-10-21 7487 San Mateo Near intersection of Bayshore Highway and Main St, Redwood City, near slough Comment
  JROH5002  Cynodon dactylon John H. Thomas 1967-11-5 14135 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5012  Cynosurus echinatus John Hunter Thomas 1990-5-29 24862 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near picnic area Comment
  SD146097  Cynosurus echinatus G. K. Helmkamp, E. A. Helmkamp 1999-6-28 4958 San Mateo Santa Cruz Mountains; Sky Londa; Junction of CA-84 & CA-35; 5 miles south of central Redwood City 456 Comment
  CAS-BOT-BC114461  Cyperus eragrostis George Thomas Oberlander 1949-7-24 318 San Mateo Marsh, Lower Crystal Spr. Lake. Comment
  SEINET5546172  Cypselea humifusa H. S. Gentry 1931-1 72 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  JROH22  Cystopteris fragilis Richard Jeffers 1981-4-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  RSA78584  Cytisus scoparius P. A. Munz 1953-2-1 18273 San Mateo North of Scott Valley. Comment
  UCSB11177  Cytisus scoparius Connelly, Dianne 1962-4-21 San Mateo Corner of Milbrae and Sky Line Boulevard; 12 miles southeast of San Francisco 121 Comment
  CAS-BOT-BC198209  Cytisus striatus Rosemary Leen 1985-5-23 s.n. San Mateo Northeast Ridge, near Guadelupe Valley Rd., San Bruno Mountain Comment
  JROH5025  Dactylis glomerata John Hunter Thomas 1987-4-30 24215 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5031  Dactylis glomerata W. Lennihan 1989-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Across dam, down trail to meadow, turn left -- all along road before bridge over creek. Comment
  CAS-BOT-BC192241  Danthonia californica R. S. Ferris 1921-5-28 2189 San Mateo Near Pescadero, coast road Comment
  LA11231  Danthonia californica D. Keck; 1932-5-6 1479 San Mateo W of Millbrae Highlands 50.0 Comment
  SEINET10860712  Danthonia californica Adolph D. E. Elmer Elmer 4707 San Mateo Crystal Springs Lake. Comment
  CDA31644  Danthonia californica var. californica T. C. Fuller 1975-5-15 20075 San Mateo Hillborough, north exit of rest stop, east side of Hwy 280. 0 Comment
  JROH232  Daucus pusillus John Hunter Thomas 1991-5-2 25020 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI48631  Deinandra corymbosa Lewis S. Rose 1937-8-29 37644 San Mateo Moss Beach 15 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
  UC702538  Deinandra corymbosa L. S. Rose 1941-8-9 41361 San Mateo Moss Beach, open sandy coastal fields Moss Beach 16 Comment
  UC89137  Deinandra corymbosa K. Brandegee 1889-5-1 San Mateo Milbrae Comment
  SD30843  Deinandra corymbosa Marie Cummings 1933-6-5 2124 San Mateo Near Spring Valley Lake Comment
  CAS-BOT-BC299214  Deinandra corymbosa subsp. corymbosa Walter Knight; Irja Knight 1963-10-7 s.n. San Mateo Quarry at end of School St. near Hillside Blvd., South San Francisco, San Bruno Mountain 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
  CAS-BOT-BC299220  Deinandra corymbosa subsp. corymbosa David D. Keck 1927-6-10 396 San Mateo Radio Statoin, Montara Point Comment
  CAS-BOT-BC300004  Deinandra lobbii Josephine D. Randall 1907-11-3 s.n. San Mateo Los Trancos Road near Standford University, Santa Cruz Peninsula Comment
  CAS-BOT-BC300006  Deinandra lobbii W. R. Dudley 1898-11-4 s.n. San Mateo Los Trancos Road near Adelante Villa, vicinity of Standford University Comment
  CAS-BOT-BC300007  Deinandra lobbii James I. McMurphy 1906-10-28 s.n. San Mateo San Francisquito Creek, along San Mateo-Santa Clara County line Comment
  CAS-BOT-BC292115  Delairea odorata J. H. Thomas 1958-12-18 7509 San Mateo Along Skyline Blvd. just west of San Bruno Comment
  RSA152052  Delphinium californicum John H. Thomas 1961-5-7 9279 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  JROH3429  Delphinium californicum subsp. californicum Richard L. Garber 1971-5-18 28 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3436  Delphinium californicum subsp. californicum John Hunter Thomas 1980-6-5 19999 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC9237  Delphinium decorum Peter H. Raven 1950-4-16 1788 San Mateo Colma Canyon, San Bruno Mountains 182 Comment
  SD37300  Delphinium decorum Janet Turner 1933-4-19 37 San Mateo Emerald Lake Comment
  CAS-BOT-BC10287  Delphinium hesperium W. R. Dudley 1905-6-19 s.n. San Mateo Above Alpine School House, Black Mtn. Comment
  JROH3444  Delphinium hesperium subsp. hesperium John H. Thomas 1976-5-26 18155 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3448  Delphinium hesperium subsp. hesperium John Hunter Thomas 1981-5-25 20637 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA10344  Delphinium nudicaule H. A. Barker 1926-5-1 575 San Mateo Kings Mt. Comment
  SEINET12086765  Delphinium nudicaule L. S. Rose 1931-1 s.n. San Mateo Kings Mt 914 Comment
  RSA18089  Delphinium patens Carl B. Wolf 1929-4-26 3659 San Mateo Woodside. Comment
  JROH3457  Delphinium patens subsp. patens John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC7940  Delphinium variegatum John Hunter Thomas 1971-5-2 15829 San Mateo near intersection of Canada and Edgewater Roads, about 4 miles SW of center of Redwood City 304 Comment
  CAS-BOT-BC7941  Delphinium variegatum John Hunter Thomas 1974-4-11 17134 San Mateo SE of Canada Road and Edgewood Road, NW of Woodside 152 Comment
  CAS-BOT-BC7892  Delphinium variegatum H. Paul Arnaud 1941-5-3 s.n. San Mateo Jefferson Avenue, Redwood City Comment
  SJSU3145  Delphinium variegatum W. A. Dout 1957-5-10 20 San Mateo Emerald L district of Redwood City Comment
  CAS-BOT-BC7897  Delphinium variegatum subsp. variegatum W. R. Dudley 1896-4-4 s.n. San Mateo near Crystal Springs Comment
  JROH5047  Deschampsia danthonioides John H. Thomas 1975-5-26 17917 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5058  Deschampsia elongata H. L. Mason 1921-5-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA1962  Desmazeria rigida W. Davis 1971-5-27 San Mateo 263 Cerrito Avenue, Redwood City. 0 Comment
  CAS-BOT-BC876  Dicentra chrysantha George T. Ruddock Sept 1917 s.n. San Mateo San Carlos Peak Comment
  JEPS127848  Dichelostemma capitatum subsp. capitatum Adam C. Schneider 2013-4-7 86 San Mateo Comment
  POM169473  Dichelostemma capitatum subsp. capitatum C. F. Baker 1903-4-6 1891 San Mateo San Bruno Hills near S.F. [San Francisco] Comment
  JROH4665  Dichelostemma congestum John Hunter Thomas 1982-4-23 20836 San Mateo Jasper Ridge Biological Preserve, Stanford University. Picnic area Comment
  SEINET3885708  Dichelostemma pulchellum Lewis S. Rose 1970-4-8 70025 San Mateo Black Mountain w. of San Mateo.; 0 122 Comment
  JEPS125950  Dichondra donelliana D. W. Taylor 2000-7-20 17532 San Mateo Montara Mountain, along dirt road 1 mile W from North Peak Comment
  CAS-BOT-BC150468  Diplacus aurantiacus Elizabeth McClintock; Paul Reeberg 1988-5-20 s.n. San Mateo Carter Street Comment
  JROH4215  Dirca occidentalis John Hunter Thomas 1981-12-21 20791 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA169345  Dirca occidentalis L. S. Rose 1964-3-9 s.n. San Mateo North end of Crystal Springs Lake 122 Comment
  SEINET10776854 Image available Dirca occidentalis Lewis S. Rose 1939-4-12 Rose 39060 San Mateo Crystal Springs Lake 152 Comment
  SEINET6957401  Dirca occidentalis Lorin I. Nevling 1996-2-16 346 San Mateo San Pedro Valley Park, Brooks Creek Trail in view of Brooks Falls. "Western Leatherwood." Comment
  UC860256  Disporum hookeri Lewis S. Rose 1939-5-5 39095 San Mateo San Mateo Canyon 45 Comment
  CAS-BOT-BC195721  Distichlis spicata Ray Pestrong 1963-11-8 s.n. San Mateo South San Francisco Bay, in the marsh near East Palo Alto, Dumbarton Bridge Comment
  SACT000992  Distichlis spicata var. stolonifera Malcolm Nobs, S. Smith 1949-8-26 San Mateo Collected in the marshes at mouth of creek. Comment
  JROH683  Dittrichia graveolens Toni Corelli 2005-10-12 306 San Mateo Jasper Ridge Biological Preserve, Stanford University. bike bowl, east of Main Road 121 Comment
  JROH3387  Dodecatheon hendersonii John Hunter Thomas 1981-4-5 20286 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  UC1019562  Dodecatheon hendersonii H. J. Thompson 1952-3-6 1516 San Mateo 2 mi w Woodside (Kings Mountain Road); , w of Woodside Comment
  JROH1518  Draba verna John Hunter Thomas 1991-4-6 24975 San Mateo Jasper Ridge Biological Preserve, Stanford University; on west side of dam Comment
  CAS-BOT-BC435208  Drosanthemum floribundum Dr. Barton W. Evermann 1924-6-22 s.n. San Mateo Ano [Ano] Nuevo Island Comment
  CAS-BOT-BC159535  Drymocallis glandulosa var. glandulosa W. R. Dudley 1910-5-26 s.n. San Mateo Near Los Trancos Creek, along Judge Allen's - Santa Cruz Peninsula Comment
  CAS-BOT-BC159542  Drymocallis glandulosa var. glandulosa C. F. Leithold 1894-8-13 s.n. San Mateo Devil's Canyon, Black Mountain - Santa Cruz Peninsula Comment
  UC481507  Drymocallis glandulosa var. wrangelliana H. F. Copeland 1929-7-4 San Mateo La Honda Grade Comment
  CAS-BOT-BC67881  Dryopteris arguta G. Isenberg 1971-12-1 s.n. San Mateo Butano Creek Comment
  JROH26  Dryopteris arguta John H. Thomas 1973-6-15 16840 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH43  Dryopteris arguta L. Fletcher 1986-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek. Comment
  CAS-BOT-BC67894  Dryopteris arguta G. Edelbrock 1975-2-8 003 San Mateo SF watershed - Along roadcut at Stone Dam below Pilarcitos Lake 121 Comment
  UCSB17937  Dryopteris arguta Schulte, John 1963-4-14 San Mateo Jasper Ridge, 3 miles SW of Stanford campus, between Santa Clara Valley and Santa Cruz Mtns. 137 Comment
  JEPS49939  Dudleya caespitosa W. L. Jepson 1910-8-18 4164 San Mateo Gazos Creek Pescadero Comment
  CAS-BOT-BC428364  Dudleya farinosa L. R. Abrams 1909-8-2 4272 San Mateo Santa Cruz Peninsula. Pebble Beach hotel, Pescadero Comment
  CAS-BOT-BC428366  Dudleya farinosa Dr. Barton W. Evermann 1924-6-22 s.n. San Mateo Ano [Ano] Nuevo Island Comment
  CAS-BOT-BC428367  Dudleya farinosa Robt. T. Orr 1961-7-28 s.n. San Mateo Ano [Ano] Nuevo Island Comment
  JROH1807  Dysphania ambrosioides John H. Thomas 1964-10-2 10514 a San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH5085  Echinochloa crus-galli John H. Thomas 1974-10-29 17652 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  JROH4304  Echinodorus berteroi John H. Thomas 1964-11-15 10523 San Mateo Jasper Ridge Biological Preserve, Stanford University; now dry lake margin at east end of Searsville Dam Comment
  HSC94173  Echium lusitanicum Gordon Leppig 2000-5-24 1384 San Mateo Hwy. 101 between Montara and Linda Mar Comment
  CAS-BOT-BC112954  Eleocharis macrostachya George Thomas Oberlander 1950-7-15 1054 San Mateo Marsh, San Andreas Lake. Comment
  CAS-BOT-BC112956  Eleocharis macrostachya Copeland 1903-3-1 3340 San Mateo Searsville Comment
  CAS-BOT-BC112957  Eleocharis macrostachya Rimo Bacigalupi 1922-5-25 s.n. San Mateo Emerald Lake Redwood City. Comment
  CAS-BOT-BC112960  Eleocharis macrostachya Adolph Daniel Edward Elmer 1903-7-1 4767 San Mateo San Pedro. Comment
  JROH4405  Eleocharis macrostachya John Hunter Thomas 1981-7-12 20691 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat dock. Comment
  RSA63026  Eleocharis montevidensis L. S. Rose 1950-5-20 50146 San Mateo Emerald Lake region, hills w. of Redwood City. 244 Comment
  CAS-BOT-BC113150  Eleocharis palustris Elizabeth McClintock; P. Reeberg 1989-5-2 s.n. San Mateo In disturbed seep 600 feet SE of the Carter/Martin intersection, Guadalupe Hills, Daly City 68 Comment
  RSA176541  Elymus X gouldii John H. Thomas 1963-6-23 10159 San Mateo Along Alpine Road near Ladera Comment
  CAS-BOT-BC203879  Elymus X hansenii Elizabeth McClintock; Paul Reeberg 1989-5-30 s.n. San Mateo San Bruno Mountains. Owl Canyon 121 Comment
  JEPS113013  Elymus californicus Dean W. Taylor 1994-5-10 14279 San Mateo along Crystal Springs Road 0.3 mi e of junction of Tartan Trail (Santa Cruz Mountains, San Mateo Creek drainage); Santa Cruz Mountains, San Mateo Creek drainage 67 Comment
  SD38364  Elymus condensatus Edith A. Purer 1932-7-18 4006 San Mateo Half Moon Bay, sand dunes Comment
  RSA580523  Elymus glaucus H. F. Copeland 1929-7-4 1241 San Mateo La Honda Grade Comment
  JROH5102  Elymus glaucus subsp. glaucus John H. Thomas 1967-6-1 12951 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5112  Elymus glaucus subsp. glaucus W. Lennihan 1989-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 10, on hill by trail. 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
  UCD62412  Elymus glaucus subsp. virescens P. B. Kennedy 1916-4-1 San Mateo Colma Canyon, Daly City, S. San Francisco. Comment
  JROH5119  Elymus multisetus D. E. Breedlove 1971-5-31 19370 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH5125  Elymus multisetus John Hunter Thomas 1977-6-7 18731 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5131  Elymus multisetus John Hunter Thomas 1986-6-7 24086 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5955  Elymus multisetus John Rawlings 2017-5-19 2052 San Mateo Jasper Ridge Biological Preserve, Stanford University; on slope north of Global Change site, south of Field Station visitor parking lot 117 Comment
  CDA2050  Elytrigia repens Bruce Martin Aug 1949 San Mateo Coastal; Half Moon Bay, near San Francisco (about 30 mi. So.) 0 Comment
  OBI12062  Epilobium brachycarpum Lewis S. Rose 1966-8-6 66077 San Mateo San Bruno Mtn, head of Colma Cyn 213 Comment
  CAS-BOT-BC165935  Epilobium canum Ira L. Wiggins 1980-8-29 22254 San Mateo Sandy bed of San Francisquito Creek, ca 125 m upstream from Pope Street bridge, Menlo Park Comment
  CAS-BOT-BC166142  Epilobium canum subsp. canum Walter Knight; Irja Knight 1965-5-15 1112 San Mateo Pig Ranch Ravine. Up about half way on south facing slope 213 Comment
  JROH3053  Epilobium ciliatum subsp. ciliatum John Hunter Thomas 1978-7-2 19241 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  HSC24034  Epilobium ciliatum subsp. ciliatum Mary Katherine Wicksten 1971-8-19 197 San Mateo Huddart Park Comment
  UC1122561  Epilobium ciliatum subsp. watsonii H. S. Yates 1935-5-8 5220 San Mateo 2 mi sw Pescadero; Santa Cruz Quadrangle Comment
  UC1537611  Epilobium ciliatum subsp. watsonii Gordon H. True Jr. 1936-6-7 481 San Mateo 2 mi s Pescadero (gully along coast highway) 15 Comment
  JROH3061  Epilobium densiflorum John H. Thomas 1971-8-7 16018 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3072  Epilobium minutum Herbert Dengler 1964-5-17 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; to be found ca. 100 yds. w. of tiger lily site on serp. slope Comment
  JROH5606  Epipactis helleborine John Rawlings, Ann Lambrecht 2011-6-21 1212 San Mateo Jasper Ridge Biological Preserve, Stanford University. Vicinity of an abandoned camper shell near a small drainage west of the switchback zone of the Escobar/Webb Ranch horse trail on north side of ridge. 100 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
  UC205082  Equisetum A. D. E. Elmer May, 1903 4602 San Mateo Cemeteries, San Mateo Co. Comment
  CAS-BOT-BC57086  Equisetum X ferrissii E. Cannon 1898-5-24 s.n. San Mateo Colma Comment
  RSA785879  Equisetum arvense Peter Rubtzoff 1978-4-2 9153 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UCD164092  Equisetum arvense Peter Rubtzoff 1978-4-2 9153 San Mateo San Bruno Mountains.'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC57600  Equisetum telmateia Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Radio Road Comment
  CAS-BOT-BC57603  Equisetum telmateia Ira L. Wiggins 1931-3-15 5103 San Mateo between Skyline Boulevard and La Honda Comment
  CAS-BOT-BC57613  Equisetum telmateia A. D. E. Elmer 1903-5-1 4602 San Mateo Cemeteries Comment
  JROH74  Equisetum telmateia subsp. braunii Toni Corelli 2010-3-29 361 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 13, south side of Leonard's Bridge 106 Comment
  JROH5147  Eragrostis pectinacea var. pectinacea John Rawlings 2012-7-27 1124 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the NE corner of the Caretaker's Residence by the garden fence and the blackberry bush. 106 Comment
  CAS-BOT-BC299889  Erechtites glomeratus L. R. Abrams 1926-5-26 11218 San Mateo San Bruno Hills near Daly City Comment
  JEPS112717  Eriastrum abramsii Dean W. Taylor 1994-5-10 14261 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
  JROH649  Erigeron canadensis John H. Thomas 1976-10-16 18423 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  JROH690  Erigeron foliosus var. foliosus John H. Thomas 1971-5-30 15968 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH691  Erigeron foliosus var. foliosus John H. Thomas 1973-6-10 16807 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM357521  Erigeron glaucus Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  CAS-BOT-BC295091  Erigeron glaucus Javier Penalosa 1963-3-9 2675 San Mateo San Bruno Mountain. Slopes southeast of 1314 ft. summit 381 Comment
  RSA18350  Erigeron glaucus C. B. Wolf 1927-1-29 s.n. San Mateo Cliff near the beach at Pescadero Comment
  CAS-BOT-BC300064  Erigeron philadelphicus Philip Wheeler 1965-7-7 s.n. San Mateo San Bruno Mountain. April Brook Comment
  CAS-BOT-BC300066  Erigeron philadelphicus Phillip C. Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. N. W. Radio Road Comment
  CAS-BOT-BC216128  Eriodictyon californicum Phillip Wheeler 1965-6-7 s.n. San Mateo Lower Owls Canyon, San Bruno Mountain Comment
  CAS-BOT-BC216134  Eriodictyon californicum Alice Eastwood 1912-6-10 836 San Mateo Crystal Springs Comment
  JROH2720  Eriodictyon californicum Richard L. Garber 1971-5-11 14 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2726  Eriodictyon californicum John H. Thomas 1974-5-29 17398 San Mateo Jasper Ridge Biological Preserve, Stanford University; near riders' shack Comment
  POM263620  Eriodictyon californicum L. S. Rose 1941-7-2 41288 San Mateo Kings Mountain. 480 Comment
  SD38515  Eriodictyon californicum Edith A. Purer 1933-5-25 3650 San Mateo La Honda Grade Comment
  SEINET6744709 Image available Eriodictyon californicum L. S. Rose 1941-7-2 41288 San Mateo Kings Mountain, California. Comment
  JEPS127890  Eriogonum fasciculatum var. foliolosum Adam C. Schneider with C. Matt Guilliams and Will Freyman 2013-6-24 309 San Mateo Crystal Springs Reservoir. Comment
  CAS-BOT-BC250544  Eriogonum gracile John H. Thomas 1969-10-19 15478 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC250547  Eriogonum gracile Cherie Wetzel 1969-6-20 872 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  RSA107485  Eriogonum latifolium L. S. Rose 1955-7-25 55167 San Mateo Pigeon Point 6 Comment
  RSA393632  Eriogonum latifolium E. S. Spalding 1924-6-28 s.n. San Mateo Moss Beach. Comment
  SD38689  Eriogonum latifolium Edith A. Purer 1933-7-27 5370 San Mateo Sand dunes, rwo miles south of Pigeon Point Comment
  CAS-BOT-BC264772  Eriogonum luteolum George Oberlander 1949-7-30 349 San Mateo San Francisco Watershed Reserve, south boundary Comment
  CAS-BOT-BC264781  Eriogonum luteolum L. R. Abrams 1902-9-21 2988 San Mateo Crystal Lake Comment
  RSA120436  Eriogonum luteolum Hester R. Davis 1920-6-1 177 San Mateo Back of Redwood City Comment
  JROH3230  Eriogonum luteolum var. luteolum John H. Thomas 1972-8-18 16146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC268995  Eriogonum nudum var. auriculatum A. D. E. Elmer 1903-6-1 4311 San Mateo Crystal Springs Lake 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
  RSA393325  Eriogonum nudum var. auriculatum E. A. Purer 1933-7-27 5401 San Mateo Along Bayshore Highway near Redwood City Comment
  UCD100531  Eriogonum nudum var. auriculatum Marilyn Ivey 1973-5-30 67 San Mateo Farm Hill Blvd., 2 miles east of Canada College. Comment
  CAS-BOT-BC304083  Eriophyllum confertiflorum Margaret A. Barry 1937-6-22 172 San Mateo Coal Mine Ridge Comment
  RSA7603  Eriophyllum confertiflorum L. S. Rose 1933-5-17 33176 San Mateo Redwood City Comment
  JEPS83062  Eriophyllum lanatum var. arachnoideum Roy E. Buck, Randall A. Morgan, and James A. West 1983-7-23 451 San Mateo 1.4 km w of San Andreas Dam (at n end of Sawyer Ridge, on raodcut and sw-facing slope above last curve in gravel ridge road before intersection above San Andreas Dam.); San Francisco Watershed Reserve, Sawyer Ridge Comment
  CAS-BOT-BC301751  Eriophyllum latilobum L. Constance 1938-5-16 2242 San Mateo On San Mateo Creek, Half Moon Bay road 2 miles SW. of San Mateo 45 Comment
  UC1377806  Eriophyllum latilobum W. J. Dress 1951-5-30 3274 San Mateo roadside bank in canyon sw of San Mateo Comment
Read comments
Mar 6 2006
  CAS-BOT-BC301969  Eriophyllum staechadifolium Louis F. Pitelka 1973-6-16 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  CAS-BOT-BC301973  Eriophyllum staechadifolium Dr. Barton W. Evermann 1924-6-22 s.n. San Mateo Ano [Ano] Nuevo Island Comment
  CHSC22930  Eriophyllum staechadifolium Robert A. Schlising; Glenn Keator 1962-2-3 2045 San Mateo Coast Ranges. Slope along Highway 1, 3.9 mi N of Jct with Bonnie Doon Road. Comment
  JEPS34470  Eriophyllum staechadifolium L. R. Heckard and Rimo Bacigalupi 1963-7-2 1359 San Mateo trail to (nw slope) Montara Peak (above old county road) 304 Comment
  POM54691  Eriophyllum staechadifolium C. F. Baker 1901-10-1 1747 San Mateo Pillar Point Comment
  RSA17884  Eriophyllum staechadifolium C. B. Wolf 1927-6-29 s.n. San Mateo Pescadero. Comment
  CAS-BOT-BC301970  Eriophyllum staechadifolium John H. Thomas 1975-1-12 17672 San Mateo Thornton Beach State Park in NW part of county Comment
  POM358131  Eriophyllum staechadifolium L. S. Rose 1938-8-18 38233 San Mateo Skyline Blvd., 3 miles south of San Francisco County line. 61 Comment
  UCSB10755  Eriophyllum staechadifolium Myrick, Donald 1966-6-11 San Mateo Near Pescadero Creek off Highway #1 south of San Francisco Comment
  RSA328357  Erodium botrys Robert A. Norris 1984-5-9 4731 San Mateo Olivet Memorial Park throughway, Colma. Comment
  SEINET12182126  Erodium botrys G. A. McCallum 1933-1 s.n. San Mateo near Woodside Comment
  JROH2604  Erodium cicutarium John H. Thomas 1974-4-4 17082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH238  Eryngium jepsonii Richard L. Garber 1971-5-1 82 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC54511  Erysimum capitatum G. B. Rossbach; R. P. Rossbach 1938-6-12 860 San Mateo Coast Range. La Honda grove. 121 Comment
  UC1034903  Erysimum capitatum G. B. and R. P. Rossbach 1938-6-12 860 San Mateo La Honda Grove Coast Range 121 Comment
  CAS-BOT-BC54824  Erysimum franciscanum A. D. E. Elmer 1903-5-1 4480 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC54825  Erysimum franciscanum Alice Eastwood 1913-2-22 2455 San Mateo San Bruno Hills. Comment
  CAS-BOT-BC54862  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-6-4 915 San Mateo West slope Buriburi Ridge, between Crystal Springs and San Andreas Lakes. 121 Comment
  CAS-BOT-BC54874  Erysimum franciscanum John H. Thomas 1974-5-7 17315 San Mateo San Bruno Mountain. Along Guadalupe Parkway opposite school. Western side of mountain. Comment
  CAS-BOT-BC54875  Erysimum franciscanum C. F. Baker 1903-4-6 1885 San Mateo San Bruno Hills. Comment
  CAS-BOT-BC54880  Erysimum franciscanum Reed Clark Rollins 1942-4-30 3007 San Mateo Southeast slope of the San Bruno Hills, about 1 mile west of Brisbane. Comment
  CAS-BOT-BC54883  Erysimum franciscanum Phillip Wheeler 1965-6-16 s.n. San Mateo San Bruno Mountains. Colma Canyon - east end. Comment
  CAS-BOT-BC54886  Erysimum franciscanum James McMurphy 1909-3-20 s.n. San Mateo Crystal Springs. Comment
  JEPS53557  Erysimum franciscanum William S. Cooper 1925-5-28 16 San Mateo Salada Comment
  RSA101867  Erysimum franciscanum G. B. Rossbach 1940-5-24 932 San Mateo San Bruno Hills, 1-1.5 miles southeast of highest peak 358 Comment
  RSA51239  Erysimum franciscanum P. H. Raven 1950-4-16 1781 San Mateo Colma Canyon, San Bruno Mountains. 183 Comment
  UC10577  Erysimum franciscanum J. Burtt Davy 1895-4-20 1070 San Mateo Crystal Springs Lake 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
  CHSC59820  Erythranthe guttata Jan M. Karaz 1979-5-28 78 San Mateo 2.5 mi west of Hwy 280 towards San Francisco Bay on Farm Hill Blvd, along Stulsaft Creek in Stulsaft Park. Comment
  CAS-BOT-BC403531  Eschscholzia californica Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  JROH3098  Eschscholzia californica John H. Thomas 1975-4-5 17713 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3101  Eschscholzia californica John Hunter Thomas 1981-5-19 20610 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC204262  Eschscholzia californica A. D. E. Elmer June, 1903 4680 San Mateo Crystal Springs Lake Comment
  UCSB18389  Eschscholzia californica Schulte, John 1963-4-12 San Mateo Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 137 Comment
  CAS-BOT-BC202740  Euonymus occidentalis George Oberlander 1949-4-20 617 San Mateo San Francisco Watershed Reserve. Pilarcitos Comment
  RSA176863  Euphorbia epithymoides John H. Thomas 1964-4-30 10342 San Mateo Palo Alto. San Francisquito Creek at University Avenue bridge. 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
  JROH5788  Euphorbia oblongata John Rawlings 2016-5-10 1780 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Cr. near Dennis Martin site. 73 Comment
  UC1795595  Euphorbia oblongata J. Beall 2002-6-3 PDR 120145 San Mateo Pope at San Francisquito Creek Comment
  CDA19888  Euphorbia oblongata J. Beall 2002-6-3 PDR P 120145 San Mateo San Francisco Bay Area; Pope at San Francisquito Creek. 0 Comment
  JROH1977  Euphorbia spathulata John Hunter Thomas 1977-6-7 18735 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5681  Euphorbia spathulata John Rawlings 2015-3-15 1355 San Mateo Jasper Ridge Biological Preserve, Stanford University. Ridge-top serpentine prairie 188 Comment
  UC202830  Euphorbia spathulata A. D. E. Elmer Apr 1903 4740 San Mateo Crystal Springs Lake Comment
  UC1557877  Eurybia radulina J. Semple, S. Heard 1987-9-21 8914 San Mateo CA-35 27.4 km s of CA-92 Comment
  CAS-BOT-BC183625  Festuca arundinacea Peter Rubtzoff 1977-6-21 9061 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and northwest of Fog Forest. Comment
  JROH5154  Festuca arundinacea John Hunter Thomas 1982-6-7 21034 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5158  Festuca arundinacea John Hunter Thomas 1985-5-21 23664 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge Comment
  SEINET10887997  Festuca arundinacea P. Rubtzoff 1976-6-13 Rubtzoff 8633 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and northwest of Fog Forest. Comment
  JROH5475  Festuca bromoides John Hunter Thomas 1984-5-3 23334 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS27352  Festuca californica Rimo Bacigalupi with L. R. Heckard and J. Roof 1961-4-24 7613 San Mateo due n San Bruno Mountain summit (directly below and ne of KQED radio power station) 342 Comment
  SEINET206289 Image available Festuca californica Rimo Bacigalupi, L. R. Heckard; J. Roof 1961-4-24 7613 San Mateo Just below rocky spur due north of true summit of San Bruno Mountain directly below and northeast of KQED radio station 343 Comment
  JROH5481  Festuca microstachys John H. Thomas 1963-5-15 10093 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5503  Festuca myuros Stephen N. Turitzin 1976-5-7 8 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
  JROH5281  Festuca perennis John H. Thomas 1967-6-1 12956 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS101936  Festuca rubra Dean W. Taylor 1988-4-8 9508 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest- right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain: 237 Comment
  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
  RSA140620  Ficus carica John H. Thomas 1960-6-25 8795 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. 8 Comment
  RSA10389  Fragaria californica H. A. Barker 1926-5-15 626 San Mateo King Mt. Comment
  RSA133096  Fragaria californica Donald A. Johansen 1933-5-18 709 San Mateo Along road from Portola to La Honda. Comment
  RSA95475  Fragaria californica L. S. Rose 1954-5-17 54044 San Mateo Kings Mtn. 610 Comment
  RSA15343  Fragaria chiloensis Carl B. Wolf 1927-1-29 156 San Mateo Pebble Beach, along bluffs near Beach Comment
  CAS-BOT-BC437035  Fragaria chiloensis Daniel Cohen 1953-5-9 99 San Mateo Top of bluff between Pescadero and San Gregorio Comment
  CAS-BOT-BC437039  Fragaria chiloensis Walter Knight; Irja Knight 1964-4-25 688 San Mateo West of Radio Road, San Bruno Mountain Comment
  UC859948  Fragaria vesca Lewis S. Rose 1933-6-23 33251 San Mateo Kings Mountain Comment
  CAS-BOT-BC457524  Fragaria vesca subsp. californica Elizabeth McClintock 1965-3-28 s.n. San Mateo along stream at April Brook, San Bruno Mountain 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-BC52675  Frangula californica subsp. californica George Oberlander 1949-7-30 246 San Mateo Crest of Sweeney Ridge Comment
  CAS-BOT-BC52680  Frangula californica subsp. californica Elizabeth McClintock 1965-3-28 s.n. San Mateo North Power Line Ridge Comment
  CAS-BOT-BC52683  Frangula californica subsp. californica Walter Knight; Irja Knight 1965-5-15 1108 San Mateo Pig Ranch Ravine Comment
  JROH3552  Frangula californica subsp. californica John Hunter Thomas 1992-5-25 25346 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of chaparral on serpentine. Comment
  JROH3573  Frangula californica subsp. tomentella John Hunter Thomas 1981-2-14 20214 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA391414  Frankenia salina D. D. Keck 1931-9-27 1269 San Mateo Dumbarton Bridge. Comment
  CAS-BOT-BC223548  Fraxinus latifolia W. R. Dudley 1894-10-24 s.n. San Mateo Santa Cruz Peninsula. Near San Francisquito Creek Comment
  CAS-BOT-BC130132  Fritillaria affinis Roxana S. Ferris 1921-3-21 2121 San Mateo [Ano] Ano Nuevo Pt. Comment
  CAS-BOT-BC130145  Fritillaria affinis R. Bacigalupi 1922-3-1 s.n. San Mateo Pescadero Beach Comment
  POM196512  Fritillaria affinis Lucile Roush 1917-3-31 s.n. San Mateo Santa Cruz Mountain peninsula; Sierra Morena Comment
  CAS-BOT-BC130379  Fritillaria liliacea James McMurphy 1909-3-20 s.n. San Mateo Crystal Springs Comment
  POM210222  Fritillaria liliacea H. E. Parks 1930-3-10 400 San Mateo Spring Valley Lakes Comment
  SDSU20659  Fritillaria liliacea Sean Ryan 2011-3-18 76 San Mateo 65 yds S of Point Reyes-Petaluma Rd. approx. 0.66 mi W of its intersection with Nicasio Valley Rd. Nicasio Reservoir. 65 Comment
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Sep 10 2014
  JROH3824  Galium John Hunter Thomas 1989-4-10 24626 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC164660  Galium aparine Peter Rubtzoff; Roman Gankin 1974-12-17 7943 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  UCR121582  Galium californicum subsp. californicum George K. Helmkamp, E. A. Helmkamp 1999-6-28 4982 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  JROH3795  Galium murale John H. Thomas 1974-4-25 17217 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3817  Galium porrigens var. porrigens John Hunter Thomas 1986-5-17 24046 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dam to Rattlesnake Rock Comment
  JROH5574  Gamochaeta ustulata John H. Thomas 1962-5-31 9896 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of the ridge Comment
  CAS-BOT-BC194568  Garrya elliptica Helen M. Edwards 1917-2-1 s.n. San Mateo Los Trancos Woods Comment
  UC21592  Garrya elliptica J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  JROH5185  Gastridium phleoides John H. Thomas 1973-6-10 16809 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA135780  Gastridium phleoides C. F. Leitholt 1894-7-30 s.n. San Mateo La Honda. Comment
  SJSU15819  Gastridium phleoides John Rawlings, Ken Hickman 2016-7-21 1907 San Mateo Serpentine seep area (Fountain thistle seep) up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  CAS-BOT-BC59639  Gaultheria shallon Herbert L. Mason 1920-6-25 s.n. San Mateo Pescadero Cr. Comment
  CAS-BOT-BC219142  Genista monspessulana Phillip Wheeler 1965-6-8 s.n. San Mateo San Bruno Mountain. Bayshore, cut area Comment
  JEPS121494  Genista monspessulana Adam C. Schneider with C. Matt Guilliams 2013-3-9 43 San Mateo Crystal Springs Reservoir Comment
  RSA0028489  Geranium dissectum Josephine Randall 1907-6-29 149 San Mateo Portola Valley. Comment
  JROH5790  Geranium purpureum Toni Corelli 2016-4-25 1250 San Mateo Jasper Ridge Biological Preserve, Stanford University; outside exclosure Rd. G 121 Comment
  JROH3153  Gilia achilleifolia subsp. multicaulis John H. Thomas 1971-4-25 15783 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC532093  Gilia achilleifolia subsp. multicaulis David D. Keck 1934-7-7 2931 San Mateo w Kings Mountain summit; Kings Mountain 609 Comment
  RSA185797  Gilia capitata subsp. abrotanifolia Josephine Randall 1908-5-1 s.n. San Mateo Corte de Madera Canon near Alpine RoadSanta Cruz Peninsula Comment
  CAS-BOT-BC123797  Gilia mellita Edward Lee Greene 1886-6-23 s.n. San Mateo Belmont 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
  RSA218022  Gnaphalium californicum Walter Knight, I. Knight 1964-4-13 711 San Mateo Power Line Ridge Comment
  RSA218036  Gnaphalium chilense Walter Knight, I. Knight 1963-8-5 s.n. San Mateo Radio Road, San Bruno Mountain Comment
  RSA130389  Gnaphalium palustre W. R. Dudley 1909-10-31 s.n. San Mateo Searsville Lake. The Santa Cruz Mtn Peninsula. Comment
  RSA195655  Gnaphalium ramosissimum John H. Thomas 1958-8-1 7376 San Mateo Just N of mouth of San Gregorio Creek 30 Comment
  UCR254881  Gnaphalium ramosissimum Peter Rubtzoff 1978-9-16 9272 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  UCR121580  Gnaphalium stramineum George K. Helmkamp, E. A. Helmkamp 1999-6-28 5015 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  POM359110  Grindelia D. D. Keck 1932-5-25 1783 San Mateo Hills two miles W of Belmont Comment
  CAS-BOT-BC304512  Grindelia hirsutula John Thomas Howell 1964-12-6 41032 San Mateo Vacant lot near Southern Pacific R. R. station, Millbrae Comment
  CAS-BOT-BC304525  Grindelia hirsutula Alice Eastwood 1912-6-2 216 San Mateo Granada Comment
  CAS-BOT-BC304561  Grindelia hirsutula Lewis S. Rose 1933-6-9 33221 San Mateo San Andreas Lake Comment
  POM57689  Grindelia hirsutula C. F. Baker 1903-4-8 s.n. San Mateo San Andreas Lake Comment
  RSA137305  Grindelia hirsutula John H. Thomas 1954-5-28 4243 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 30 Comment
  SBBG25107  Grindelia hirsutula D. Myrick 1966-6-11 1451 San Mateo Pigeon Pt on St Hwy 1, S of San Francisco Comment
  JROH815  Grindelia hirsutula John H. Thomas 1970-4-4 15541 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5709439 Image available Grindelia stricta Lowell E. Urbatsch 1972-1 1095 San Mateo Low area near coast along Hwy 1. Comment
  SD30784  Grindelia stricta var. angustifolia Edith A. Purer 1933-8-4 5414 San Mateo Baden Station Comment
  POM288781  Grindelia stricta var. platyphylla Lyman Benson 1934-7-4 6101 San Mateo Moss Beach; Pacific Ocean watershed 15 Comment
  POM51491  Grindelia stricta var. platyphylla Katherine Brandegee 1917-7-15 s.n. San Mateo Moss Beach. Comment
  RSA184825  Grindelia stricta var. platyphylla L. S. Rose 1965-9-4 65102 San Mateo Pillar Point. 15 Comment
  RSA638982  Grindelia stricta var. platyphylla R. F. Thorne, Percy C. Everett 1965-8-1 35075 San Mateo 21.5 miles S of Golden Gate Bridge. 69 Comment
  SJSU16022  Hainardia cylindrica John Rawlings, Toni Corelli 2016-5-13 1793 San Mateo Fairway Dr. access path to Mori Point. USGS Montara Mountain 7.5 Minute (1:24,000 Scale) 34 Comment
  CAS-BOT-BC309529  Helenium puberulum R. E. Frenkel 1963-12-7 332 San Mateo San Francisco Water District, Whiting Ridge Road, ca. 0.8 mile south-west of Spring Valley Road, at Fire Warden's Gate Comment
  CAS-BOT-BC309531  Helenium puberulum John H. Thomas 1976-10-7 18392 San Mateo Along coast highway #1, 0.6 miles north of northern most road to Pigeon Pt. Lighthouse. About 4.2 miles almost due south of Pescadero 30 Comment
  JEPS35417  Helenium puberulum L. M. Newlon 1921-7-30 254 San Mateo seashore from Salada to Mussel Comment
  JROH833  Helenium puberulum John H. Thomas 1970-7-5 15658 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM161134  Helenium puberulum Josephine Randall 1907-7-24 s.n. San Mateo Near Crystal Springs Lake. Comment
  CAS-BOT-BC344859  Helenium puberulum Peter Rubtzoff 1976-6-30 8710 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  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
  RSA70702  Helenium puberulum L. S. Rose 1949-8-10 49157 San Mateo Skyline Blvd, W of Tanforan 122 Comment
  CAS-BOT-BC305920  Helminthotheca echioides Elsie M. Zeile 1921-7-30 s.n. San Mateo Salada Comment
  CAS-BOT-BC453465  Hemitomes congestum Louise Koenig 1928-6-1 s.n. San Mateo Skyline Boulevard in a canyon at the head of La Honda Creek Comment
  POM284517  Hemizonia congesta Lyman Benson 1934-7-29 6107 San Mateo Crystal Springs Lake; Mt. Range: Santa Cruz; Watershed: S. F. Bay. 152 Comment
  POM284518  Hemizonia congesta Lyman Benson 1934-7-29 6108 San Mateo Crystal Springs Lake; Mt. Range: Santa Cruz; Watershed: S. F. Bay. 152 Comment
  CAS-BOT-BC313457  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1910-8-24 s.n. San Mateo Corte Madera Creek Comment
  CAS-BOT-BC314912  Hemizonia congesta subsp. luzulifolia Ned Cahill 1974-7-14 360 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City Comment
  JEPS30897  Hemizonia congesta subsp. luzulifolia J. H. Thomas 1958-6-11 7228 San Mateo about 4.3 mi due e Belmont (near Crystal Springs Reservoir) 91 Comment
  JROH872  Hemizonia congesta subsp. luzulifolia John Hunter Thomas 1981-5-25 20642 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1069542  Hemizonia congesta subsp. luzulifolia G. E. Sindel 1935-8-28 342 San Mateo 2 mi se Crystal Springs Lake; Santa Cruz Quad. 167 Comment
  UC897727  Hemizonia congesta subsp. luzulifolia Roxana Stinchfield 1915-10-14 260 San Mateo Cedro Villa Santa Cruz Mountain Peninsula, Stanford University Comment
  CAS-BOT-BC313454  Hemizonia congesta subsp. luzulifolia J. McMurphy 1909-8-29 s.n. San Mateo Summit between Crystal Springs Lake and Belmont, Santa Cruz Peninsula Comment
  CAS-BOT-BC313456  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1908-8-20 s.n. San Mateo 2/3 from causeway to entrance of canyon, Crystal Springs Lake Comment
  CAS-BOT-BC314925  Hemizonia congesta subsp. luzulifolia W. R. Dudley 1909-4-27 s.n. San Mateo Crystal Springs Reservoir, Santa Cruz Mountain Peninsula Comment
  UC990624  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1907-8-6 San Mateo e of causeway Crystal Springs Lakes Comment
  RSA184823  Hemizonia corymbosa subsp. corymbosa L. S. Rose 1965-9-4 65100 San Mateo Skyline Blvd and half Moon Bay Road, Cahill Ridge 244 Comment
  RSA94180  Hemizonia corymbosa subsp. corymbosa D. D. Keck 1932-5-25 1784 San Mateo Hills 2 miles W of Belmont Comment
  SD148265  Heracleum maximum G. K. Helmkamp, E. A. Helmkamp 2001-6-2 6788 San Mateo Central California coast; Purissima Creek Road, east of Half Moon Bay at Purissima Creek, 3.2 miles east of California Highway 1. 244 Comment
  JROH252  Heracleum maximum John Hunter Thomas 1986-5-1 23989 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing near San Francisquito Creek Comment
  JROH902  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1992-4-23 25147 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC403865  Hesperocnide tenella Walter Knight; Irja Knight 1964-5-30 615 San Mateo San Bruno Mountain. Colma Canyon Comment
  CAS-BOT-BC403869  Hesperocnide tenella Margaret A. Barry 1938-5-29 264 San Mateo Corte Madera Creek near Coal Mine Ridge Comment
  JROH4229  Hesperocnide tenella John H. Thomas 1974-5-19 17384 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC176214  Hesperolinon congestum Hester R. Davis 1920-6-1 179 San Mateo Back of Redwood City Comment
  JEPS82918  Hesperolinon congestum Roy E. Buck and Randall A. Morgan 1983-6-7 339 San Mateo top of small knoll on w side of CA Hwy 92 near Highway I-280 interchange (just e of Upper Crystal Springs Lake); San Francisco Watershed Reserve 137 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
  UC191381  Hesperolinon congestum Edward Lee Greene 1887-6-11 San Mateo Comment
  UC725506  Hesperolinon congestum A. A. Heller 1907-5-28 8572 San Mateo near Crystal Springs Comment
  UC311178  Hesperomecon linearis A. D. E. Elmer 1903-6-1 4594 San Mateo San Bruno Hills Comment
  CAS-BOT-BC148468  Heteromeles arbutifolia Margaret A. Barry 1937-6-24 179 San Mateo Exposed slopes on Coal Mine Ridge Comment
  JROH3682  Heteromeles arbutifolia John Hunter Thomas 1981-2-14 20223 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0072445  Heteromeles arbutifolia John H. Thomas 1958-11-22 7504 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  UC481555  Heteromeles arbutifolia H. F. Copeland 1929-7-4 San Mateo La Honda Grade Comment
  JROH5895  Heteromeles arbutifolia M. Ray 1982-3-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail leading to the west side of the dam. Comment
  RSA0072444  Heteromeles arbutifolia L. S. Rose 1948-11-25 48241 San Mateo Woodside. 366 Comment
  JEPS49087  Heterotheca sessiliflora subsp. bolanderi Lewis S. Rose 1966-8-20 66087 San Mateo summit San Bruno Mt. 365 Comment
  JROH3884  Heuchera micrantha John H. Thomas 1970-5-16 15628 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET9737102  Heuchera micrantha Unknown 1933-4-23 10384 San Mateo White House Creek Comment
  CAS-BOT-BC424376  Heuchera micrantha var. hartwegii John H. Thomas 1967-5-7 12837 San Mateo Near intersection of Bean Hollow and Pescadero roads, about 1/2 mile westward from Pescadero. 91 Comment
  CAS-BOT-BC424377  Heuchera micrantha var. hartwegii Walter & Irja Knight 1964-5-4 s.n. San Mateo Romanzoffia ravine; San Bruno Mountain Comment
  CAS-BOT-BC424430  Heuchera pilosissima H. L. Mason 1921-6-2 s.n. San Mateo Hill near Pebble Beach, Pescadero Comment
  CAS-BOT-BC319631  Hieracium albiflorum C. F. Leithold 1894-8-13 s.n. San Mateo Devil's Canyon, Black Mountain, Santa Cruz Mountain Peninsula Comment
  SBBG44978  Hieracium albiflorum C. B. Wolf 1927-7-14 619 San Mateo summit of Kings Mtn Rd Comment
  RSA10998  Hierochloe occidentalis C. B. Wolf 1928-3-14 1535 San Mateo La Honda grade in the Santa Cruz Mountains 152 Comment
  UC75024  Hierochloe occidentalis C. F. Baker 1902-1-15 247 San Mateo w side of mountain King's Mountain Comment
  JROH1533  Hirschfeldia incana John Hunter Thomas 1977-6-16 18794 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC55436  Hirschfeldia incana Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountains. Base of Quarry 2. Comment
  CAS-BOT-BC289247  Holcus lanatus W. R. Dudley 1894-7-28 s.n. San Mateo East of Pescadero, Santa Cruz Mountain Peninsula Comment
  JROH5216  Holcus lanatus John Hunter Thomas 1988-6-2 24501 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near old bridge. Comment
  UCR141417  Holcus lanatus June Latting 1975-6-8 s.n. San Mateo Central Coast, slough across from Pescadero dump (on Bean Hollow Rd.), west of Pescadero 9 Comment
  JROH3689  Holodiscus discolor var. discolor John H. Thomas 1971-5-30 15982 San Mateo Jasper Ridge Biological Preserve, Stanford University. Woods near dam Comment
  POM198993  Hordeum brachyantherum A. D. E. Elmer 1903-06 4857 San Mateo Crystal Springs Lake. Comment
  RSA149153  Hordeum brachyantherum John H. Thomas 1961-5-13 9341 San Mateo Coastal sand dunes at Franklin Point. Comment
  CAS-BOT-BC284685  Hordeum brachyantherum subsp. brachyantherum Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  CAS-BOT-BC289538  Hordeum brachyantherum subsp. californicum Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Crocker Hills, San Bruno Mountain Comment
  JROH5221  Hordeum brachyantherum subsp. californicum John H. Thomas 1973-6-10 16820 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD85535  Hordeum brachyantherum subsp. californicum Lewis S. Rose 1956-5-7 56070 San Mateo Skyline Blvd. W of San Mateo. 182 Comment
  POM295721  Hordeum depressum Lyman Benson 1931-5-29 2812 San Mateo Santa Cruz Mountain Range 244 Comment
  JROH5235  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
  JROH5243  Hordeum marinum subsp. gussoneanum John Hunter Thomas 1981-5-14 20579 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC289392  Hordeum murinum subsp. glaucum Paul Arnaud 1941-4-6 s.n. San Mateo Redwood City 731 Comment
  JROH5260  Hordeum murinum subsp. leporinum Winkie Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  CAS-BOT-BC271354  Hordeum vulgare Fred Hemphill 1973-4-15 671 San Mateo Area north of Malabar Road and Melendy Drive, San Carlos 207 Comment
  CAS-BOT-BC271357  Hordeum vulgare Mary Helen Kelson 1956-4-27 150 San Mateo One mile from beach at Pescadero Comment
  JEPS29415  Horkelia californica L. R. Heckard 1962-7-16 1262 San Mateo near summit of San Bruno Mt. (w-facing slope to the ne of transmitting station KQED) 335 Comment
  CAS-BOT-BC536144  Horkelia californica Helen D. Geis 1901-10-25 s.n. San Mateo Spanishtown [Half Moon Bay] near cemetery Comment
  CAS-BOT-BC536146  Horkelia californica L. R. Abrams; I. L. Wiggins 1939-6-3 436 San Mateo Half mile inland from the sand dunes, Ano Nuevo Point Comment
  CAS-BOT-BC536147  Horkelia californica L. R. Abrams; I. L. Wiggins 1939-6-3 436 San Mateo Half mile inland from the sand dunes, Ano Nuevo Point Comment
  CAS-BOT-BC536154  Horkelia californica David D. Keck 1939-7-1 5008 San Mateo 3 miles south of Pescadero, 1 mile from the ocean 60 Comment
  SEINET7097934  Horkelia californica subsp. californica A. G. Vestal 1937-6-15 s.n. San Mateo Lat. 37 14' 13ao N, Long. 122 24' 55ao W (NAD27 converted to WGS84 decimal degrees). Pebble Beach west of Pescadero. UTM Zone 10, 551863 mE, 4121109 mN. Comment
  CAS-BOT-BC143928  Horkelia cuneata var. sericea A. A. Heller 1906-6-8 8374 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  LA47914  Hosackia gracilis C. F. Baker; 1902-5-1 689 San Mateo Crystal Springs Lake Comment
  JROH5610  Hyacinthoides hispanica John Rawlings 2014-4-1 1213 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 10 meters east of Trail 20. 85 Comment
  CDA5497  Hydrocotyle moschata E. L. Labadie 1962-3-15 San Mateo Jack Fujiki property, 135 N. Idaho, San Mateo . 0 Comment
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Aug 7 2014
  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
  JROH923  Hypochaeris glabra John Hunter Thomas 1989-5-9 24720 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176615  Hypochaeris glabra John H. Thomas 1964-4-30 10338 San Mateo Near intersection of El Camino Real and F St, Colma Comment
  JROH912  Hypochaeris glabra John H. Thomas 1961-4-29 9187 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH927  Hypochaeris radicata John H. Thomas 1973-5-5 16771 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM168922  Iris douglasiana C. F. Baker 1902-3-22 343 San Mateo Crystal Springs Lake Comment
  UC1206487  Iris douglasiana Le Roy Abrams 1902-5-11 2441 San Mateo San Mateo Canyon Comment
  HSC23981  Iris douglasiana Mary Katherine Wicksten 1971-7-8 161 San Mateo Huddart Park above Miwok Area Comment
  CAS-BOT-BC133649  Iris longipetala Walter Knight; Irja Knight 1965-3-21 956 San Mateo Along ridge near power lines at Brisbane end Comment
  CAS-BOT-BC133659  Iris longipetala Rimo Bacigalupi 1922-3-26 s.n. San Mateo Between Gazos Creek and Pigeon Pt. Comment
  CAS-BOT-BC133674  Iris longipetala Walter Knight; Irja Knight 1964-3-16 985 San Mateo Point San Bruno Comment
  HSC13892  Iris longipetala L. S. Rose 1968-3-26 68009 San Mateo S base of San Bruno Mtns., S San Francisco 30 Comment
  JROH4430  Iris pseudacorus John H. Thomas 1961-5-5 9221 San Mateo Jasper Ridge Biological Preserve, Stanford University. Swampy area at edge of Searsville Lake Comment
  RSA116773  Isoetes howellii W. R. Dudley 1906-7-28 s.n. San Mateo Coal Mine Ridge, Black Mtn. Comment
  SJSU16039  Isolepis carinata Toni Corelli, John Rawlings 2016-4-29 1764 San Mateo Cascade Field along Cascade Cr. Trail, Ano Nuevo State Park 21 Comment
  CAS-BOT-BC112618  Isolepis cernua Walter Knight; Irja Knight 1964-5-30 s.n. San Mateo Colma Canyon Comment
  POM259793  Isolepis cernua I. L. Wiggins, Roxana S. Ferris 1939-8-2 9290 San Mateo Ano Nuevo Point Comment
  RSA135648  Isolepis cernua H. L. Mason 1921-6-2 s.n. San Mateo Pebble Beach near Pescadero. Comment
  CAS-BOT-BC112630  Isolepis cernua Elizabeth McClintock; P. Reeberg 1989-5-2 s.n. San Mateo In lower Owl Canyon 45 Comment
  UCD133403  Jaumea carnosa Malcolm A. Nobs; S. Galen Smith 1949-8-26 1598 San Mateo Pescadero Creek. Comment
  JROH2772  Juglans hindsii John Hunter Thomas 1978-7-14 19262 San Mateo Jasper Ridge Biological Preserve, Stanford University; to the west of the low flow crossing of San Francisquito Cr. Comment
  RSA0064345  Juncus balticus Peter Rubtzoff, Elizabeth McClintock 1989-8-31 10045 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, along old Guadalupe Road, east of Saddle Trail junction, San Bruno Mountains. Comment
  SJSU15957  Juncus bufonius var. bufonius John Rawlings, Ken Hickman 2016-5-26 1834 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  JROH4465  Juncus bufonius var. occidentalis John H. Thomas 1973-4-14 16561 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC115873  Juncus effusus subsp. pacificus J. Rawlings 2013-7-23 2001 San Mateo Near Searsville Landing, W shore of Searsville Lake, Jasper Ridge Biological Preserve, Sand Brancisco Bay subregion. 105 Comment
  UCR244744  Juncus effusus var. brunneus Peter Rubtzoff, Roman Gankin 1975-9-11 8372 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  RSA786663  Juncus effusus var. brunneus Peter Rubtzoff, Roman Gankin 1975-9-11 8372 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  UCD141619  Juncus nevadensis Frank W. Gould 1939-5-6 657 San Mateo on coast Highway 13 miles north of Santa Cruz County line. 15 Comment
  POM176267  Juncus occidentalis E. B. Copeland 1903-03 3341 San Mateo Searsville. Comment
  CAS-BOT-BC173697  Juncus occidentalis Peter Rubtzoff 1978-5-18 9170 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Marshy area northwest of Fog Forest. Comment
  RSA18498  Juncus patens Carl B. Wolf 1927-7-14 622 San Mateo 1 mile south of summit of Kings Mt on Skyline Drive. Comment
  RSA3938  Juncus patens W. R. Dudley 1895-6-14 s.n. San Mateo Santa Cruz Peninsula: Along San Francisquito Creek, Stanford University. 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-BC210148  Juncus phaeocephalus Peter Rubtzoff; Roman Gankin 1975-9-11 s.n. San Mateo San Bruno Mountains. Pond NW of and across odl [old] Guadalupe Road from Saddle area, which is located on north side of Guadalupe Canyon Parkway, west of Radio Road junction Comment
  JROH4504  Juncus phaeocephalus var. paniculatus John Rawlings 2010-5-19 1058 San Mateo Jasper Ridge Biological Preserve, Stanford University. West edge of California semaphore grass vernal depression. 122 Comment
  RSA783800  Juncus phaeocephalus var. paniculatus Peter Rubtzoff 1978-7-8 9226 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JEPS67075  Juncus phaeocephalus var. phaeocephalus J. B. Davy 1893-6-22 756 San Mateo Lake Pilarcitas Comment
  SJSU15417  Juncus phaeocephalus var. phaeocephalus Toni Corelli 2009-9-23 432 San Mateo Tunitas Creek, San Mateo County west of Hwy. 1 4 Comment
  JEPS128398  Juncus xiphioides Adam C. Schneider 2014-5-17 137 San Mateo Crystal Springs Reservoir. Comment
  JROH4508  Juncus xiphioides John H. Thomas 1974-4-25 17195 San Mateo Jasper Ridge Biological Preserve, Stanford University. Top of ridge. Comment
  JROH5666  Juncus xiphioides John Rawlings 2011-8-10 0997 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera Creek delta near open water. 104 Comment
  JROH4518  Juncus xiphioides John Hunter Thomas 1979-5-18 19557 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4039  Kickxia elatine Carol Zabel, Ann Lambrecht 2006-7-26 60 San Mateo Jasper Ridge Biological Preserve, Stanford University; Bear Creek crossing, west side of creek bank Comment
  JROH947  Lactuca saligna John Hunter Thomas 1982-9-23 21161 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC340637  Lactuca serriola James McMurphy 1905-10-1 s.n. San Mateo Corte de Madera Creek Comment
  JROH963  Lagophylla ramosissima John Hunter Thomas 1981-10-25 20762 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC570744  Lamium amplexicaule Herbert L. Mason 1927-4-24 3703 San Mateo mouth of San Gregorio Creek Comment
  JROH2779  Lamium amplexicaule John H. Thomas 1979-4-7 19442 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC337879  Lapsana communis L. R. Abrams 1927-7-20 12179 San Mateo Santa Cruz Mountain Peninsula. La Honda Creek, about 1 mi above La Honda Comment
  UCSC003370  Lasthenia Randall Morgan 2001-5-9 3729 San Mateo north edge of Montara, just north of Chart House restaurant, San Mateo County Comment
  UCSC005963  Lasthenia Randall Morgan 1995-6-6 2729 San Mateo Common at N part of Bean Hollow State Beach Comment
  CAS-BOT-BC339071  Lasthenia californica John Thomas Howell 1933-5-3 11204 San Mateo San Bruno Hills Comment
  POM361529  Lasthenia californica Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  POM55142  Lasthenia californica C. F. Baker 1903-4-6 1890 San Mateo San Bruno Hills. Comment
  POM55213  Lasthenia californica A. D. E. Elmer 1903-04 4507 San Mateo San Bruno Hills Comment
  CAS-BOT-BC339082  Lasthenia californica W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside to Crystal Springs Reservoir Comment
  CAS-BOT-BC339090  Lasthenia californica John H. Thomas 1969-4-24 14922 A San Mateo Near Canada College, Redwood City, near Farm Hill Drive Comment
  POM319929  Lasthenia californica Barbara Shervanick 1973-4-1 802 San Mateo San Bruno Mt. first summit on Crocker Road; Mt. Range: San Bruno Mountains; Drainage Area: San Francisco Bay. Comment
  RSA8340  Lasthenia californica L. S. Rose 1933-4-30 33128 San Mateo Redwood City Comment
  CAS-BOT-BC324422  Lasthenia californica subsp. macrantha J. H. Thomas 1949-6-4 582 San Mateo Along coast, 1.4 miles south of road from coast to Pescadero Comment
  SEINET11811268  Lasthenia chrysostoma M. T. Doutt 1931-1 414 San Mateo Skyline Blvd, W of Hillbrae Comment
  SD38969  Lasthenia glabrata Delzie Demaree 1932-4-30 9083 San Mateo Alkali field near Moss Landing. Comment
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Feb 22 2015
  CAS-BOT-BC355540  Lasthenia glabrata var. glabrata John H. Thomas 1954-4-2 3792 San Mateo 1.5 miles east of center of Redwood City 0 Comment
  CAS-BOT-BC355550  Lasthenia glabrata var. glabrata Ned Cahill 1974-4-18 132 San Mateo Near intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City. Comment
  JEPS13751  Lasthenia gracilis Frank W. Gould 1939-5-6 662 San Mateo Comment
  POM361530  Lasthenia gracilis D. D. Keck 1932-3-24 1402 San Mateo Redwood City, at border of San Francisco Bay. Comment
  RSA116657  Lasthenia macrantha subsp. macrantha H. L. Mason 1921-6-1 s.n . San Mateo Pebble Beach near Pescadero Comment
  CAS-BOT-BC361417  Lasthenia maritima Sue Roberts 1954-5-1 69 San Mateo Pescadero Beach Comment
  CAS-BOT-BC368191  Lasthenia minor K. L. Chambers 1956-6-20 1044 San Mateo Mouth of Pescadero Creek on bluff between Hwy. 1 and the ocean; around parking area Comment
  UCSC007017  Lasthenia minor Randall Morgan 1988-6-5 1235 San Mateo Pescadero, Pigeon Point - Parking area N of Lighthouse Comment
  POM194716  Lathyrus littoralis H. M. Hall 1924-6-17 11957 San Mateo Salada Comment
  SEINET956312  Lathyrus vestitus Ira L. Wiggins 1925-1 1661 San Mateo On King Mountain Road three fourths of a mile above Woodside in the old cut over redwood. Comment
  POM19359  Lathyrus vestitus subsp. vestitus C. F. Baker 652 San Mateo Kings Mountain. Comment
  RSA11932  Lathyrus vestitus subsp. vestitus Elmer I. Applegate 1895-3-9 140 San Mateo Woodside Comment
  JEPS55372  Lathyrus vestitus var. vestitus R. L. Pendleton 1907-4-20 626 San Mateo Colma 182 Comment
  JROH2041  Lathyrus vestitus var. vestitus John Hunter Thomas 1992-4-23 25157 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rattlesnake Rocks and along trail to redwoods Comment
  UC580737  Lathyrus vestitus var. vestitus H. S. Yates 1935-5-8 5203 San Mateo 2 mi n Langley Hill (ne of La Honda); Santa Cruz Quad. 579 Comment
  JROH2037  Lathyrus vestitus var. vestitus John Hunter Thomas 1984-4-24 23297 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Sand Hill Road fence Comment
  JEPS17917  Lavatera arborea Rimo Bacigalupi 1955-8-4 5450 San Mateo just n Montara Point lighthouse (at town of Montara); Montara Comment
  CAS-BOT-BC323154  Layia chrysanthemoides David D. Keck 1932-5-6 1487 San Mateo Near Skyline Boulevard, west of Millbrae Highlands. Comment
  CAS-BOT-BC323160  Layia chrysanthemoides David D. Keck 1932-4-29 1450 San Mateo Redwood City. Comment
  CAS-BOT-BC323156  Layia chrysanthemoides David D. Keck 1932-5-6 1488 San Mateo 4 miles W of Burlingame on Skyline Boulevard. Comment
  CAS-BOT-BC323157  Layia chrysanthemoides David D. Keck 1932-5-6 1488 San Mateo 4 miles W of Burlingame on Skyline Boulevard. Comment
  CAS-BOT-BC323179  Layia chrysanthemoides William R. Dudley 1893-5-17 s.n. San Mateo Near Millbrae. Comment
  CAS-BOT-BC321074  Layia gaillardioides James McMurphy 1907-4-27 s.n. San Mateo Kings Mt. Comment
  SDSU2788  Layia gaillardioides D. F. Howe 1967-4-14 4351 San Mateo 7 miles from San Mateo on road to Half Moon Bay. 122 Comment
  CAS-BOT-BC327484  Layia hieracioides Lewis S. Rose 1936-5-28 36309 San Mateo Emerald Lake, W of Redwood City 91 Comment
  JEPS22902  Layia hieracioides John H. Thomas 1958-5-10 7158 San Mateo 5 mi sw Palo Alto; Searsville Lake 152 Comment
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Jul 14 2009
  UCR256307  Layia hieracioides Peter Rubtzoff 1978-7-8 9221 San Mateo San Francisco Bay Region, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 220 Comment
  CAS-BOT-BC327486  Layia hieracioides George Oberlander 1949-9-25 368 San Mateo San Francisco Watershed Reserve. Sawyer Ridge. Comment
  CHSC68147  Layia platyglossa A. D. E. Elmer 1903-4-1 5022 San Mateo Crystal Springs Lake. Comment
  JROH995  Layia platyglossa John H. Thomas 1973-4-14 16565 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC382084  Layia platyglossa J. I. McMurphy 1906-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula: Between Schoolhouse and Head of Crystal Springs Lakes Comment
  CAS-BOT-BC382086  Layia platyglossa Ned Cahill 1974-4-8 117 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC382087  Layia platyglossa W. R. Dudley 1909-4-27 s.n. San Mateo Santa Cruz Mountain Peninsula: Whipple Road near Blacksmith shop between Woodside and Crystal Springs Lakes Comment
  CAS-BOT-BC382095  Layia platyglossa John H. Thomas 1967-5-2 12816 San Mateo Along Skyline Blvd., 0.4 miles S of Black Mt. intersection; Hillsborough Comment
  CAS-BOT-BC382221  Layia platyglossa Donald A. Johansen 1932-5-21 687 San Mateo 1/2 mile north of Pigeon Point lighthouse. Comment
  JEPS415  Lemna gibba W. L. Jepson 1923-10-18 10261 San Mateo w of Colma (near ocean) Comment
  JROH4533  Lemna minor John H. Thomas 1970-4-4 15539 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake at dam Comment
  JROH5675  Lemna minuta John Rawlings 2014-7-29 1277 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Cr. streambed, up-stream from old Boething Nursery crossing. 65 Comment
  CAS-BOT-BC527268  Lemna minuta W. Knight; I. Knight 1966-10-4 2039 San Mateo Crocker Hills marsh between Geneva and Guadalupe Parkway, San Bruno Mountain Comment
  CAS-BOT-BC221522  Lepechinia calycina George Oberlander 1940-5-31 142 San Mateo San Francisco Watershed Reserve. Sweeney Ridge Comment
  LA64432  Lepechinia calycina Lewis S. Rose; 1933-6-9 33225 San Mateo Belmont Comment
  RSA6280  Lepechinia calycina D. D. Keck 1932-5-25 1779 San Mateo Hills 2 miles W of Belmont Comment
  UCD23295  Lepechinia calycina Alan T. Whittemore 1976-5-29 115 San Mateo San Francisco Fish and Game Refuge. East side of Lower Crystal Springs Lake, on Sawyer's Camp Road. 94 Comment
  CAS-BOT-BC89217  Lepidium draba Phillip C. Wheeler 1967-5-7 s.n. San Mateo San Bruno Mountains. Crocker Hills, near old Bayshore Highway. Comment
  JROH1545  Lepidium nitidum John H. Thomas 1974-4-13 17146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB17149  Lepidium nitidum Schulte, John 1963-4-28 San Mateo Jurassic dike, Jasper Ridge; 3 miles southwest of Stanford campus; between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC12753  Lepidium oxycarpum David D. Keck 1932-3-24 1401 San Mateo Redwood City. At border of San Francisco Bay. Comment
  SJSU8368  Lepidium oxycarpum A. H. Lilleberg 1961-4-9 San Mateo SE of Redwood City Marina, Redwood City Comment
  UC501384  Lepidium perfoliatum David D. Keck 1932-3-24 1400 San Mateo San Francisco Bay border Redwood City Comment
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Oct 24 2021
  CAS-BOT-BC12782  Lepidium perfoliatum David D. Keck 1932-3-24 1400 San Mateo Redwood City. At border of San Francisco Bay. 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-BC226600  Leptosiphon ambiguus J. H. Thomas 1949-4-1 214 San Mateo West of Redwood City Comment
  CAS-BOT-BC226603  Leptosiphon ambiguus W. R. Dudley 1909-4-27 s.n. San Mateo Santa Cruz Mountain Peninsula. Whipple Rd. between Woodside and Crystal Spr. Lakes Comment
  CAS-BOT-BC226724  Leptosiphon androsaceus Adele Lewis Grant 1917-5-6 936 San Mateo Pescadero Comment
  JROH3172  Leptosiphon androsaceus John H. Thomas 1971-4-10 15750 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM65146  Leptosiphon androsaceus L. R. Abrams 1901-05 1553 San Mateo Searsville Comment
  SD27819  Leptosiphon androsaceus Carl B. Wolf 1929-5-25 3731 San Mateo Pebble Beach, south of Pescadero. Comment
  JROH5924  Leptosiphon androsaceus Herb Dengler 1970-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; East serpentine Comment
  JROH5928  Leptosiphon androsaceus Herb Dengler 1970-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; East serpentine Comment
  JROH3179  Leptosiphon bicolor H. A. Borthwick 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3180  Leptosiphon bicolor Carol Zabel 1989-5-8 16 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11 just before intersection with Trail 10 Comment
  CAS-BOT-BC226726  Leptosiphon latisectus W. R. Dudley 1901-5-11 s.n. San Mateo Santa Cruz Peninsula. Land due west of Lake Merced Comment
  CAS-BOT-BC226727  Leptosiphon latisectus Alice Eastwood 1901-5-19 s.n. San Mateo Blenheim Comment
  SD38816  Leptosiphon liniflorus Marie Cummings 1933-5-23 3718 San Mateo Spring Valley Comment
  JROH3186  Leptosiphon parviflorus H. A. Borthwick 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD67317  Leptosiphon pygmaeus subsp. continentalis F. Howe 1967-4-14 San Mateo 7 miles from San Mateo on road to Half Moon Bay 399 Comment
  CAS-BOT-BC324051  Lessingia arachnoidea Lewis S. Rose 1964-9-9 64075 San Mateo Crystal Springs Lakes west of San Mateo 243 Comment
  CHSC98697  Lessingia arachnoidea Samantha Mackey Hillaire 2007-7-17 1245 San Mateo Pulgas Ridge, near south end of Lower Crystal Springs Reservoir, and north end of Upper Crystal Springs Reservoir. North of intersection of Skyline Blvd and Hwy 35, on sides of a small access road. UTM 10 557433E, 4151982N. 106 Comment
  UC829024  Lessingia arachnoidea Lewis S. Rose 1941-9-6 41434 San Mateo San Mateo Canyon 91 Comment
  JROH1011  Lessingia glandulifera var. glandulifera John H. Thomas 1967-5-31 12924 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1026  Lessingia glandulifera var. glandulifera John Hunter Thomas 1988-5-5 24450 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC324183  Lessingia hololeuca LeRoy Abrams 1902-9-21 2987 San Mateo Crystal Springs Comment
  JROH1032  Lessingia hololeuca John H. Thomas 1972-8-18 16153 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI15794  Lessingia hololeuca Lewis S. Rose 1964-9-5 64072 San Mateo Emerald Lake; W of Redwood city 152 Comment
  RSA608390  Lessingia hololeuca L. S. Rose 1936-9-19 s.n. San Mateo Crystal Springs Lake 152 Comment
  SEINET7883357 Image available Lessingia hololeuca var. arachnoidea L. S. Rose 1941-1 41434 San Mateo San Mateo Canyon Comment
  SEINET10617599 Image available Lessingia hololeuca var. arachnoidea Charles F. Baker 1902-9-2 Baker 1548 San Mateo Crystal Springs Lake. Large colonies along roadsides. Comment
  JROH5841  Leucanthemum maximum Ann Lambrecht 2009-7-22 35 San Mateo Jasper Ridge Biological Preserve, Stanford University; in now-dry bed of San Francisquito Creek below Dennis Martin marker Comment
  UCSB7872  Leucanthemum vulgare Myrick, Donald 1966-6-11 San Mateo Along Highway #1 near Pescadero Comment
  CAS-BOT-BC273564  Leymus californicus A. D. E. Elmer 1903-6-1 4700 San Mateo Toward Crystal Springs Lake from San Mateo Comment
  UCD61319  Leymus californicus G. L. Stebbins Jr. 1941-4-26 3089 San Mateo 1 mile Northeast of La Honda, along San Gregorio Creek. Comment
  UCD64593  Leymus mollis David L. Hanson 1976-3-23 San Mateo Half Moon Bay. Comment
  JEPS71196  Leymus mollis subsp. mollis William S. Cooper 1925-5-28 9 San Mateo Miramar Comment
  JEPS71199  Leymus triticoides William S. Cooper 1919-7-22 214 San Mateo Ano Nuevo Pt. Comment
  JEPS71203  Leymus triticoides William S. Cooper 1925-5-28 6 San Mateo Miramar Comment
  UCD65579  Leymus triticoides August L. Hormay 1932-5-29 s.n. San Mateo Near San Bruno. Comment
  SEINET11763376  Lilaea scilloides H. L. Mason 1922-1 s.n. San Mateo Pigeon Pt Comment
  CAS-BOT-BC130792  Lilium pardalinum H. L. Mason 1920-6-25 s.n. San Mateo Pescadero Creek Comment
  CAS-BOT-BC389738  Lilium pardalinum J. Lovelle 1973-7-8 39 San Mateo Poscader [Pescadero] Cr. Comment
  JROH4689  Lilium pardalinum subsp. pardalinum John Hunter Thomas 1989-6-17 24776 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  JROH4053  Limosella acaulis John Hunter Thomas 1980-11-12 20166 San Mateo Jasper Ridge Biological Preserve, Stanford University. Ground of delta Comment
  CAS-BOT-BC238360  Limosella aquatica J. Clausen 1939-7-1 1744 San Mateo Ano Nuevo Point Comment
  JEPS48590  Linanthus androsaceus James G. Daly 1934-1 332 San Mateo Upper Alpine Canyon, sw San Mateo County Santa Cruz Mts., San Gregorio Watershed 30 Comment
Read comments
Mar 12 2009
  UCSC004682  Linanthus androsaceus Randall Morgan 1994-4-13 2181 San Mateo Edgewood Park/Canada Road Comment
  JEPS30889  Linanthus liniflorus J. H. Thomas 1958-5-13 7166 San Mateo about 3 mi sw San Mateo (along Skyline Blvd, 0.3 mi s of intersection of Skyline Blvd with Black Mt Rd) 304 Comment
  JROH5967  Linaria bipartita John Hunter Thomas 1982-5-25 20964 San Mateo Jasper Ridge Biological Preserve; roadside [Sand Hill Rd.] Comment
  CDA6305  Linaria purpurea T. C. Fuller 1968-10-3 17659 San Mateo Christie s Crescent Nursery, Half Moon Bay. 0 Comment
  UC762363  Lithocarpus densiflorus R. F. Hoover 1941-2-12 4758 San Mateo above La Honda (La Honda Creek); La Honda Creek Comment
  CAS-BOT-BC36072  Lithocarpus densiflorus var. densiflorus Josephine D. Randall 1907-6-29 128 San Mateo Kings Mt. Road Comment
  RSA252256  Lithocarpus densiflorus var. densiflorus Gary D. Wallace 1974-12-28 1375 B San Mateo Santa Cruz Mtns. along Skyline Blvd (Hwy. 35) w of Redwood City, 2.8 mi n of King Mtn Rd. 640 Comment
  CAS-BOT-BC36065  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1895-3-26 s.n. San Mateo La Honda, beyond Post Office and near Mill on Alpine road Comment
  CAS-BOT-BC430766  Lithophragma affine Evelina Cannon 1895-3-23 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC430767  Lithophragma affine Volney Rattan 1883-4-1 s.n. San Mateo Milbrae Comment
  CAS-BOT-BC430772  Lithophragma affine George Oberlander 1950-5-21 955 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC436217  Lithophragma heterophyllum John H. Thomas 1961-5-14 9361 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  CAS-BOT-BC436220  Lithophragma heterophyllum Volney Rattan 1883-1-1 s.n. San Mateo Milbrae Comment
  CAS-BOT-BC436223  Lithophragma heterophyllum Paul Arnaud 1941-4-19 s.n. San Mateo Redwood City - Hills, after Hesler farm entrance. Comment
  CAS-BOT-BC60213  Lobularia maritima Phillip Wheeler; Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon along road. Comment
  UCD18543  Lobularia maritima Roman Gankin 1950-7-8 11 San Mateo city of Menlo Park, Hermosa Way, along roadside. 30 Comment
  CAS-BOT-BC342464  Logfia gallica John H. Thomas 1961-5-7 9249 San Mateo Colma. Near intersection of El Camino Real and F Street 45 Comment
Read comments
Oct 28 2021
  CAS-BOT-BC342466  Logfia gallica John H. Thomas 1961-5-7 9265 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH732  Logfia gallica John H. Thomas 1967-5-31 12922 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH738  Logfia gallica John Hunter Thomas 1977-6-16 18750 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  CAS-BOT-BC342467  Logfia gallica Peter H. Raven 1950-6-3 2198 San Mateo Along Millbrae Ave., Millbrae 60 Comment
  UCD66070  Lolium multiflorum Lewis S. Rose 1966-5-2 66036 San Mateo Emerald Lake, west of Redwood City. 91 Comment
  CAS-BOT-BC173843  Lolium perenne Peter Rubtzoff 1975-11-8 8436 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In area of uppermost part of East Fork Colma Creek, at the northwest corner of Fog Forest. Comment
  CAS-BOT-BC269124  Lolium perenne W. R. Dudley No date on label s.n. San Mateo Santa Cruz Mountain Peninsula. Top of higher hills from Jersey Farm to Sneath's Ranch Comment
  CAS-BOT-BC269127  Lolium perenne W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Road at top of Matara Mt. Comment
  UC21261  Lomatium caruifolium var. caruifolium Alice Eastwood April 1896 San Mateo on rd. to Crystal Springs Comment
  JROH265  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1977-4-28 18565 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC21554  Lomatium dasycarpum subsp. dasycarpum L. S. Rose 1965-4-22 65027 San Mateo San Bruno Mountain, S of parking lot 579 Comment
  JROH258  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1963-3-20 10027 San Mateo Jasper Ridge Biological Preserve, Stanford University; north side of ridge near Westridge end Comment
  CHSC65248  Lomatium dasycarpum subsp. tomentosum A. D. E. Elmer 1903-4-1 San Mateo Crystal Springs Lake. Comment
  JROH273  Lomatium macrocarpum John H. Thomas 1956-4-7 5625 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH277  Lomatium macrocarpum John H. Thomas 1974-4-13 17149 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH281  Lomatium macrocarpum John H. Thomas 1975-5-26 17915 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI8917  Lomatium macrocarpum Elena R. Goodwin 2014-5-1 s.n. San Mateo Redwood City Comment
  UC202775  Lomatium utriculatum A. D. E. Elmer April, 1903 4794 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC240582  Lonicera hispidula Ned Cahill 1974-5-13 264 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC240590  Lonicera hispidula Josephine D. Randall 1907-6-29 20 San Mateo Santa Cruz Peninsula. Los Trancos Creek near Stanford University Comment
  CAS-BOT-BC240593  Lonicera hispidula George Oberlander 1949-5-21 192 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  RSA14208  Lonicera hispidula var. vacillans C. B. Wolf 1926-10-19 192 San Mateo Along road west of La Honda; Santa Cruz Mts. Comment
  UC311525  Lonicera hispidula var. vacillans A. D. E. Elmer July, 1903 4596 San Mateo Lake San Andreas Comment
  CAS-BOT-BC164679  Lonicera involucrata var. ledebourii Peter Rubtzoff 1980-12-11 9635 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  POM222813  Lonicera involucrata var. ledebourii S. S. Berry 1909-3-13 s.n. San Mateo Bridge over San Francisquito Creek, near Adelanto Villa. 46 Comment
  UC1536785  Lonicera involucrata var. ledebourii G. H. True 1936-4-5 387 San Mateo canyon between San Gregorio and Pescadero 30 Comment
  CAS-BOT-BC241415  Lonicera japonica Walter Knight; Irja Knight 1964-9-2 947 a San Mateo San Bruno Mountain. Crocker Avenue, an escape near Guadalupe Road Comment
  CAS-BOT-BC290619  Lotus Peter Rubtzoff 1987-7-31 9821 San Mateo Best Products Company parking lot on east side of Gellert Blvd. north of Westborough Blvd. intersection, South San Francisco. Comment
  RSA276357  Lotus corniculatus Jane Turner, Francis M. Ball 1962-7-7 1088 San Mateo Highway 1, ca. 10 miles N of Santa Cruz County line. Comment
  POM16716  Lotus formosissimus A. D. E. Elmer 1903-04 4860 San Mateo Lake San Andreas Comment
  UC69541  Lotus humistratus J. Burtt Davy 1893-6-17 796 San Mateo Belmont Comment
  JEPS55888  Lotus scoparius Dr. L. M. Newlon 1921-7-30 248 San Mateo Salada Comment
  HSC23870  Lotus unifoliolatus var. unifoliolatus Mary Katherine Wicksten 1971-6-15 24 San Mateo Huddart Park Rd. bank near office Comment
  UC1129221  Lotus wrangelianus H. S. Yates 1935-5-8 5207 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  JROH3080  Ludwigia peploides subsp. peploides M. Whitley 1990-5-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; by the boat ramp Comment
  CAS-BOT-BC60246  Lunaria annua E. W. Rust 1908-3-28 s.n. San Mateo Vicinity of Stanford University. Woodside Post Office. Comment
  UC82226  Lupinus C. F. Baker 1902-5-10 816 San Mateo Summit of Coast Range Comment
  POM10874  Lupinus affinis C. F. Baker 1903-4-6 471 San Mateo Crystal Springs Lake. Comment
  UCD105911  Lupinus albifrons Leslie Fenster 1964-3-22 11 San Mateo 3 miles up (south) Polhemus Road, Cahill Ridge. 152 Comment
  SEINET10488379  Lupinus albifrons Charles Piper Smith 1948-4-23 Smith 48150 San Mateo Canada road 4 miles n of woodside 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-BC195802  Lupinus albifrons var. albifrons Charles Piper Smith 1922-6-10 3548 San Mateo South San Francisco - mountain road Comment
  CAS-BOT-BC195811  Lupinus albifrons var. albifrons Fred Hemphill 1973-4-8 719 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  RSA15300  Lupinus albifrons var. albifrons Carl B. Wolf 1927-4-3 270 San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  CAS-BOT-BC196119  Lupinus albifrons var. collinus Charles Piper Smith 1908-5-31 1439 San Mateo South San Francisco, San Bruno Mountain, S.E. of cemeteries Comment
  SEINET5766825 Image available Lupinus albifrons var. collinus Lewis S. Rose 1931-1 s.n. San Mateo San Francisco Bay region Comment
  SEINET10484531  Lupinus albifrons var. collinus Walter Knight, Irja Knight 1963-8-5 Knight s.n. San Mateo Motorcycle ridge, san bruno mountain Comment
  SEINET10970193  Lupinus albifrons var. collinus J. C. Downey 1955-4-2 Downey 212 San Mateo Near the twin peaks 213 Comment
  CHSC903  Lupinus arboreus A. Koopman 1929-5-9 San Mateo Moss Beach. 9 Comment
  RSA0065263  Lupinus arboreus Daisie Huang 2006-8-7 06080702 San Mateo South of Half Moon Bay, Hwy 1. 46 Comment
  UC511362  Lupinus arboreus Lyman Benson 1930-6-14 2150 San Mateo San Gregorio; San Gregorio ocean bluffs 30 Comment
  UCSB7879  Lupinus arboreus Myrick, Donald 1966-6-11 San Mateo Near Pescadero; along Highway #1, south of San Francisco Comment
  SEINET10488466  Lupinus arboreus Charles Piper Smith 1948-4-20 Smith 48112 San Mateo Hwy 1. San pedro point, s slope Comment
  SEINET10488469  Lupinus arboreus Mcclintock 1963-6-23 MCCLINTOCK s.n. San Mateo San bruno mountain. Top of mountain, near radio station Comment
  SEINET10488480  Lupinus arboreus Charles Piper Smith 1948-4-23 Smith 48140 San Mateo Hwy 1. 1.1 Miles n montara Comment
  SEINET10488484  Lupinus arboreus Walter Knight, Irja Knight 1964-5-4 Knight s.n. San Mateo San bruno mountains. Nell pubescent from claw to tip. Colma canyon Comment
  RSA134044  Lupinus arboreus var. arboreus W. R. Dudley 1893-5-17 s.n. San Mateo High Knoll in pasture above pass between Spring Valley Reservoir, above Millbrae, Santa Cruz Peninsula. Comment
  RSA705042  Lupinus arboreus var. arboreus E. A. Purer 1933-7-27 5371 San Mateo Two miles south of Pigeon Point Comment
  JEPS101819  Lupinus arboreus var. eximius Dean W. Taylor 2000-4-25 17437 San Mateo along dirt road 1 mi W of North Peak, Montara Mountain 411 Comment
  UC725853  Lupinus bicolor A. A. Heller 1907-4-20 8451 San Mateo near Lake Merced; near Lake Merced Comment
  UC75246  Lupinus bicolor C. F. Baker 1903-4-8 1931 San Mateo Crystal Springs Lake Comment
  UC865038  Lupinus bicolor L. R. Abrams 1918-5-1 7053 San Mateo San Bruno Hills; Bay shore road Comment
  RSA178649  Lupinus bicolor subsp. pipersmithii James I. McMurphy 1911-4-22 s.n. San Mateo Stanford Park, near Stanford University. 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
  POM11076  Lupinus densiflorus var. palustris A. D. E. Elmer 1903-06 4413 San Mateo Lake San Andreas. Comment
  SEINET10485250  Lupinus densiflorus var. palustris Charles Piper Smith 1947-4-25 Smith 47178 San Mateo Belmont, skyline, w of vanderlaan summit. Comment
  UC311393  Lupinus microcarpus var. densiflorus A. D. E. Elmer May, 1903 4847 San Mateo Lake San Andreas Comment
  UC138024  Lupinus microcarpus var. microcarpus C. F. Baker 1902-5-1 850 San Mateo Crystal Springs Lake Comment
  JROH2137  Lupinus nanus John Hunter Thomas 1983-4-7 21334 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  SEINET5628417 Image available Lupinus nanus A. A. Heller 1907-4-20 8452 San Mateo Near Lake Merced. Comment
  SEINET10903591  Lupinus nanus subsp. latifolius Charles Piper Smith 1947-4-25 Smith 47188 San Mateo Pebble beach (pescadero), hwy 1. Comment
  SEINET10451625  Lupinus nanus subsp. nanus P. Wheeler 1965-5-8 Wheeler UMO 104190 San Mateo Sierra point. Comment
  SEINET10490839  Lupinus nanus subsp. nanus Walter Knight, Irja Knight 1967-6-6 Knight 2070 San Mateo Point san bruno. Comment
  POM276299  Lupinus polycarpus Lyman D. Benson 1934-3-31 5747 San Mateo Menlo Park 30 Comment
  POM296673  Lupinus polycarpus L. S. Rose 1942-3-30 42006 San Mateo Mills Field 2 Comment
  SEINET10486161  Lupinus polycarpus David B. Dunn, Howard Brown 1946-5-15 Dunn 2530 San Mateo Collected n of palo alto on walsh rd, 1.1 mi w of the corner of walsh rd and Altachul avenue. Comment
  SEINET10903924  Lupinus polycarpus David B. Dunn, Howard Brown 1946-5-16 Dunn 2602 San Mateo Collected at the top of the canyon rd, .7 mi e of the jct. With skyline drive, Grassy roadbanks. Summit of the rolling hills of the san francisco hills. Comment
  SEINET12154824  Lupinus succulentus Unknown 1932-1 8978 San Mateo Los Ticiness woods Comment
  RSA414432  Lupinus tidestromii E. A. Purer 1932-7-18 4009 San Mateo Half Moon Bay Comment
  SEINET10490275  Lupinus vallicola subsp. apricus P. Wheeler 1966-5-1 Wheeler UMO 104189 San Mateo Crocker field industrial park. San bruno mtn. Large colony of blue flowered Lupines with many white flowered plants mixed in. Comment
  POM226366  Lupinus variicolor Adele Lewis Grant 1917-5-6 938 San Mateo Pebble Beach near Pescadero. Comment
  RSA21949  Lupinus variicolor Alice Eastwood, John T. Howell 1938-6-26 6076 San Mateo Kings Mt. Comment
  UC82051  Lupinus variicolor Dr. E. B. Copeland 1903-6-3 3302 San Mateo Montara Point Comment
  UC865525  Lupinus variicolor Alice Eastwood and John Thomas Howell 1938-6-26 6076 San Mateo Kings Mt. Comment
  POM118220  Lupinus variicolor Harriet Ann Walker 1913-6-1 2982 San Mateo Tobin Comment
  JEPS101278  Luzula subsessilis Dean W. Taylor 1988-3-16 9405 San Mateo San Bruno Mountain, summit of mountain, along fire road ca. 120 m east from summit parking lot 371 Comment
  CAS-BOT-BC441361  Luzula subsessilis Elizabeth McClintock; Philip Wheeler 1967-5-14 34 San Mateo San Bruno Mountain: east side of mountain, above Harold Ave., Brisbane. Slope above Philip Wheeler's house Comment
  UCD164090  Luzula subsessilis Peter Rubtzoff 1978-4-2 9151 San Mateo San Bruno Mtns. 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction, on E rim of East Fork Colma Creek Canyon. Comment
  UC311531  Lysichiton americanus A. D. E. Elmer June, 1903 4551 San Mateo Butano Creek Comment
Read comments
Sep 6 2011
  JROH3364  Lysimachia arvensis John H. Thomas 1967-5-12 12883 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3368  Lysimachia arvensis John Hunter Thomas 1982-7-8 21077 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  JROH5907  Lysimachia arvensis L. Nordby 1982-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the Searsville Lab on the west side of the lake Comment
  UCR122578  Lythrum hyssopifolia George K. Helmkamp, E. A. Helmkamp 2001-6-2 6794 San Mateo Central Coast, Purissima Creek Rd., 0.9 mi from Calif. Hwy 1(junction about 4 mi south of Half Moon Bay) 91 Comment
  JROH2953  Lythrum hyssopifolia John Hunter Thomas 1983-5-23 22248 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dry road and low-flow crossing on shack side Comment
  CAS-BOT-BC343900  Madia elegans L. R. Abrams; I. L. Wiggins 1930-11-13 173 A San Mateo Hillside above Crystal Springs Lake Comment
  CAS-BOT-BC343918  Madia elegans John Thomas Howell 1926-10-9 2221 San Mateo Between Crystal Spring Lakes and San Mateo Comment
  SD27831  Madia elegans subsp. elegans Carl B. Wolf 1929-5-17 3713 San Mateo 1.0 mile west of Skyline Blvd. on Alpine Road. 305 Comment
  JROH1039  Madia exigua John H. Thomas 1958-5-10 7141 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC343339  Madia gracilis James I. McMurphy 1907-5-19 s.n. San Mateo Coal Mine Ridge Comment
  JROH1080  Madia gracilis John Hunter Thomas 1981-5-21 20645 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1094  Madia gracilis John Hunter Thomas 1989-5-9 24710 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC913110  Madia gracilis David D. Keck 1932-6-1 1788 San Mateo on La Honda road above Woodside; east slope of the Santa Cruz Mts. 305 Comment
  RSA176528  Madia gracilis John H. Thomas 1963-6-23 10163 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto; near Westridge end of ridge Comment
Read comments
May 25 2015
  UCD134287  Madia gracilis W. A. Harvey; J. M. Tucker 1948-6-29 1703 San Mateo Beside road to Portola State Park, just west of junction with Highway 5 (Skyline Boulevard). Comment
  CAS-BOT-BC345114  Madia sativa David D. Keck 1933-11-2 2628 San Mateo 3.5 mi. S.W. of Pescadero, within 100 m. of ocean Comment
  CAS-BOT-BC345116  Madia sativa David D. Keck 1932-5-25 1782 San Mateo Hills two miles west of Belmont Comment
  JROH1111  Madia sativa John Hunter Thomas 1983-7-7 22814 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  SBBG27925  Madia sativa C. B. Wolf 1927-6-29 561 San Mateo coast S of Pescadero at Pebble Beach Comment
  UC913116  Madia sativa David D. Keck 1930-10-15 988 San Mateo sw Woodside; Coast Ranges 450 Comment
  UCR256297  Madia sativa Peter Rubtzoff 1979-7-26 9301 San Mateo 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, San Bruno Mountains 213 Comment
  CAS-BOT-BC345117  Madia sativa David D. Keck 1932-8-11 1745 San Mateo Skyline Blvd., about 1 mi. S. of junction with Alpine Creek road, Santa Cruz Mts., Santa Clara--San Mateo Co. line 640 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
  POM284997  Madia sativa Lyman Benson 1934-7-4 6103 San Mateo Moss Beach; Pacific Ocean watershed 15 Comment
  SD38971  Madia sativa Delzie Demaree 1932-5-30 9191 San Mateo Comment
  JROH5749  Maianthemum racemosum L. Nordby 1982-4-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near San Francisquito Creek, north of Rattlesnake rock Comment
  UCSB33561  Maianthemum racemosum Brownell, Kathleen 1979-3-27 San Mateo Gazoos Road; 0.6 miles from Highway 1; Near Butano State Park; Foothills of Santa Cruz Mountains 76 Comment
  RSA3925  Maianthemum racemosum subsp. amplexicaule Josephine Randall 1908-3-28 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC512115  Maianthemum racemosum subsp. amplexicaule Ned Cahill 1974-5-13 251 San Mateo Chaprral near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  POM226215  Maianthemum stellatum Lewis S. Rose 1933-4-9 33070 San Mateo Belmont Comment
  CAS-BOT-BC514156  Maianthemum stellatum H. A. Lewis 1908-4-1 s.n. San Mateo Los Trancos Woods Comment
  CAS-BOT-BC514157  Maianthemum stellatum J. H. Thomas 1949-4-14 272 San Mateo King's Mountain Comment
  CAS-BOT-BC514160  Maianthemum stellatum W. R. Dudley 1900-3-18 s. n. San Mateo Near San Andreas Comment
  POM193594  Maianthemum stellatum W. R. Dudley 1893-2-19 s.n. San Mateo Santa Cruz peninsula: Road from La Honda to Alpine Comment
  SD39132  Maianthemum stellatum Edith A. Purer 1933-4-11 3634 San Mateo Between Pescadero and Pegeon Point. Comment
Read comments
Oct 11 2021
  RSA14939  Malacothamnus arcuatus J. T. Howell 1935-4-11 12579 San Mateo West end of Hayward-San Mateo Bridge 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
  RSA226758  Malva parviflora I. L. Wiggins 1969-5-25 21024 San Mateo On vacant lot at corner of Woodland Avenue and Pope Street, Menlo Park. Comment
  UC1746099  Marah fabacea Annetta Carter, Helen Sharsmith 1937-5-23 1320 San Mateo N end of Crystal Springs Lake. Comment
  RSA92812  Marah oregana P. H. Raven 1950-4-16 1786 San Mateo Colma Canyon, San Bruno Mts. 122 Comment
  CAS-BOT-BC67843  Marsilea vestita Peter H. Raven 1950-6-3 2269 San Mateo San Andreas Lake 121 Comment
  SJSU4256  Medicago lupulina E. J. Dalton 1962-10-7 39 San Mateo San Gregorio Cr 2 mi SW of La Honda Comment
  CAS-BOT-BC157959  Medicago polymorpha var. brevispina Peter Rubtzoff 1977-4-16 8952 A San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Along west side of East Fork Colma Creek canyon Comment
  CAS-BOT-BC271159  Melica John H. Thomas 1965-4-29 10631 B San Mateo San Bruno Mountain in northern part of county. 396 Comment
  UCD87172  Melica californica Ogden C. Riddle 1941-4-6 74 San Mateo Near Half Moon Bay, Finney Ridge. 243 Comment
  CAS-BOT-BC264189  Melica subulata W. R. Dudley 1900-5-19 s.n. San Mateo Summit La Honda Stage road, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC264243  Melica torreyana Elizabeth McClintock 1965-3-14 s.n. San Mateo Power Line Ridge, San Bruno Mountain Comment
  CAS-BOT-BC264253  Melica torreyana W. R. Dudley 1900-3-16 s.n. San Mateo Redwood Stage Road, Santa Cruz Mountain Peninsula Comment
  JROH5313  Melica torreyana John H. Thomas 1964-4-12 10310 San Mateo Jasper Ridge Biological Preserve, Stanford University. On slope to the east of the dam. Comment
  UCD88813  Melica torreyana A. A. Beetle 1942-6-11 3600 San Mateo Rt. 5, 15 miles south of San Bruno. 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
  JROH2798  Melissa officinalis John H. Thomas 1976-10-16 18431 San Mateo Jasper Ridge Biological Preserve, Stanford University; along or near San Francisquito Creek from the low flow crossing to the vicinity of the old fire place ruins downstream Comment
  JROH2802  Melissa officinalis Carol Zabel 1989-8-7 21 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 13, half way from causeway bridge to Leonard's bridge, north side of trail Comment
  SJSU15759  Mentha pulegium Toni Corelli 2009-9-9 428 San Mateo Half Moon Bay State Beach, along bank of Pilarcitos Creek 6 Comment
  JROH2809  Mentha pulegium John H. Thomas 1974-10-26 17627 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC438140  Mesembryanthemum nodiflorum William Anderson 1968-7-25 s.n. San Mateo At west approach of Dumbarton Bridge on south side of road. Comment
  CAS-BOT-BC428902  Micranthes californica George Oberlander 1949-4-9 50 San Mateo San Francisco Watershed Reserve. Northern Sweeney Ridge Comment
  JROH1126  Micropus californicus var. californicus John Hunter Thomas 1981-4-27 20507 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1132  Micropus californicus var. californicus John Hunter Thomas 1988-4-28 24422 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176780  Microseris bigelovii John H. Thomas 1963-5-20 10146 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC349029  Microseris douglasii subsp. douglasii Ned Cahill 1974-4-19 150 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC349031  Microseris douglasii subsp. douglasii John H. Thomas 1961-5-7 9259 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH1139  Microseris douglasii subsp. douglasii John H. Thomas 1956-4-7 5615 San Mateo Jasper Ridge Biological Preserve, Stanford University; open serpentine area on top of ridge and adjacent slopes Comment
  RSA107061  Microseris douglasii subsp. douglasii L. S. Rose 1956-5-28 56079 San Mateo Skyline Blvd W of San Mateo. 183 Comment
  RSA184976  Microseris douglasii subsp. tenella L. S. Rose 1966-5-2 66037 -B San Mateo Emerald Lake, west of Redwood City. 91 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
  JEPS87275  Mimulus aurantiacus var. aurantiacus David M. Thompson 1992-6-3 1105 San Mateo 1.2 mi s Hwy. 35 (Skyline Blvd.) (along Hwy. 84 (La Honda Road)) 340 Comment
  JROH4072  Mimulus aurantiacus var. aurantiacus John H. Thomas 1974-5-29 17405 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM5073  Mimulus aurantiacus var. aurantiacus Stewart H. Burnham 1894-4-21 s.n. San Mateo [Unspecified] Comment
  RSA130341  Mimulus aurantiacus var. aurantiacus James I. McMurphy 1906-5-20 25 San Mateo Kings Mt., Santa Cruz Mt. 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
  UC1080543  Mimulus aurantiacus var. aurantiacus S. S. Tillett and I. Sternback 1956-6-25 539 San Mateo along road into Portola State Park 396 Comment
  POM5152  Mimulus cardinalis A. D. E. Elmer 1903-07 4941 San Mateo Lake San Andreas. Comment
  UC1063162  Mimulus grandis N. K. Carlson 1935-6-29 98 San Mateo 2 mi ne Pigeon Pt.; Santa Cruz Quadrangle 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
  RSA788375  Mimulus guttatus Peter Rubtzoff 1976-6-30 8705 San Mateo San Bruno Mountains: 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction. Westernmost part of the area on a slope across fence. 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
  CAS-BOT-BC388825  Minuartia douglasii Arthur Spiegler 1952-5-10 80 San Mateo Jasper Ridge above Searsville Lake 457 Comment
  CAS-BOT-BC388829  Minuartia douglasii W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Crystal Springs Lake Comment
  JEPS27350  Moehringia macrophylla Rimo Bacigalupi with L. R. Heckard and Jim Roof 1961-4-24 7611 San Mateo just below rocky spur due n of true summit San Bruno Mountain (directly below and ne of KQED radio power station); due n of true summit of San Bruno Mountain 342 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-BC214069  Monardella villosa C. F. Baker 1903-6-30 3353 San Mateo Crystal Springs Comment
  CAS-BOT-BC214070  Monardella villosa Charles Piper Smith 1908-5-31 1444 San Mateo San Mateo Canyon Comment
  RSA18453  Monardella villosa Carl B. Wolf 1927-6-29 554 San Mateo South of Pebble Beach near Pescadero. Comment
  CAS-BOT-BC214088  Monardella villosa R. Bacigalupi 1946-7-6 2793 San Mateo Along Edgemar Road, 1 1/2 mi. above Edgemar, northern San Mateo Co. Comment
  RSA185020  Monardella villosa L. S. Rose 1965-6-15 65080 San Mateo South of parking lot near summit, San Bruno Mountain 366 Comment
  CDA40773  Monardella villosa subsp. franciscana G. D. Barbe 1974-6-4 1825 San Mateo Middle Fork San Pedro Creek, southeast of Oddstad Boulevard, Linda Mar District. Coastal part of county. 0 Comment
  SEINET10582382  Monardella villosa subsp. franciscana A. Graff 1993-7-13 Graff 185 San Mateo Devil's Slide, in arroyos on inland side of Hwy. 1. Mostly past bloom. Coastal scrub. Comment
  SEINET10869827 Image available Monardella villosa subsp. franciscana Adolph D. E. Elmer Elmer 4766 San Mateo Comment
  UC104640  Monardella villosa subsp. villosa Katharine Brandegee 1905-6-20 San Mateo Near Lake Pilarcitos Comment
  JROH2847  Monardella villosa subsp. villosa John Hunter Thomas 1982-6-7 21026 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  UC729683  Montia fontana Carl B. Wolf 1929-4-29 3661 San Mateo 1 mi n of summit of La Honda (on Skyline Boulevard); Santa Cruz Mountains Comment
  CAS-BOT-BC444954  Montia fontana George Oberlander 1950-4-16 632 San Mateo San Francisco Watershed Reserve. Below San Andreas Dam Comment
  SD27824  Montia verna Carl B. Wolf 1929-4-29 3661 San Mateo Santa Cruz Mts., 1 mi. no. of summit of La Honda grade on Skyline Blvd. Comment
  CAS-BOT-BC508577  Muilla maritima John H. Thomas 1969-4-24 14910 San Mateo Near Canada College, Redwood City, near Farm Hill Drive Comment
  CDA31867  Myoporum laetum Robin Breckenridge, K. Filippini 2010-2-18 PDR# 1463755 San Mateo Miramar: Highway 1, next to Frenchman Creek. 0 Comment
  UCD164185  Myosotis latifolia Peter Rubtzoff 1978-6-4 9203 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH2691  Myriophyllum aquaticum John H. Thomas 1974-6-30 17464 San Mateo Jasper Ridge Biological Preserve, Stanford University. At dam. Comment
  JROH2701  Myriophyllum aquaticum M. Whitley 1990-4-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By the floats in Searsville Lake. Comment
  JROH2979  Myrtus communis John H. Thomas 1977-1-23 18461 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC260241  Nassella pulchra Javier Penalosa 1963-3-9 2670 San Mateo San Bruno Mountain. SE of 1314 ft. summit 381 Comment
  SBBG115413  Nassella pulchra B. Crampton 1962-6-11 6486 San Mateo ca. 5 mi W of Belmont, at jct of Ralston Ave and Skyline Blvd, Pulgas Ridge, along E side of lower Crystal Springs Reservoir Comment
  UCD37962  Nassella pulchra Beecher Crampton 1962-6-11 6502 San Mateo San Mateo County, Sharp park suburb of pacifica, Moris' Point Road, west of State Highway 1. Comment
  JROH1568  Nasturtium officinale John H. Thomas 1955-5-6 4998 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3198  Navarretia heterodoxa John Pelton 1958-6-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM65519  Navarretia heterodoxa A. D. E. Elmer 1903-06 4282 San Mateo Crystal Springs Lake. Comment
  SEINET3479173  Navarretia heterodoxa L. S. Rose 1941-6-12 41269 San Mateo West of Redwood City, West of Redwood City, Emerald Lake 120 Comment
  UC662623  Navarretia heterodoxa L. S. Rose 1941-6-12 41269 San Mateo hills w Redwood City; Emerald Lake 120 Comment
  JROH3205  Navarretia heterodoxa (John H. Thomas) 1983-6-29 22715 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA42950  Navarretia heterodoxa R. C. Bacigalupi 1947-6-4 2821 San Mateo Back of San Carlos Comment
  JROH3215  Navarretia squarrosa John Hunter Thomas 1982-7-3 21063 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2753  Nemophila John Hunter Thomas 1991-4-25 24994 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rattlesnake Rocks Comment
  UC67150  Nemophila menziesii var. atomaria Harley P. Chandler 1901-3-15 800 San Mateo cliffs w Colma; Region of San Francisco Bay, w of Colma Comment
  JROH2739  Nemophila menziesii var. menziesii John H. Thomas 1976-4-3 18079 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5546  Nemophila menziesii var. menziesii John Rawlings 2013-4-13 1195 San Mateo Jasper Ridge Biological Preserve, Stanford University; southeast side of creek and about 75 meters upstream of bridge on Trail 11 136 Comment
  POM65288  Nemophila menziesii var. menziesii C. F. Baker 1903-4-6 1895 San Mateo San Bruno hills, San Francisco. Comment
  POM289745  Nemophila menziesii var. menziesii Lyman Benson 1930-5-1 2067 San Mateo Stanford University. San Lorenzo Mt. Range. 91 Comment
  POM65449  Nemophila menziesii var. menziesii A. D. E. Elmer 1903-04 4737 San Mateo Cemeteries Comment
  CAS-BOT-BC219473  Nemophila parviflora Alice Eastwood 1933-5-14 18849 San Mateo Woodside, woods near Schillings place Comment
  HSC23906  Notholithocarpus densiflorus var. densiflorus Mary Katherine Wicksten 1971-6-17 84 San Mateo Huddart Park; along road to family campground, near Madrone Area Comment
  UCSC007766  Nuttallanthus texanus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC140428  Oemleria cerasiformis Margaret A. Barry 1938-5-1 s.n. San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC140440  Oemleria cerasiformis E. G. Dudley 1904-3-3 43 San Mateo Portola Valley, Santa Cruz Mts. Comment
  RSA77093  Oemleria cerasiformis D. D. Keck 1932-3-6 1396 San Mateo Near La Honda, Santa Cruz Mountains. Comment
  UC860379  Oemleria cerasiformis Lewis S. Rose 1937-3-20 37004 San Mateo w of Tanforan (Skyline Blvd) 182 Comment
  UC860380  Oemleria cerasiformis Lewis S. Rose 1941-3-12 40123 San Mateo w of San Bruno (Skyline Blvd) 152 Comment
  UCD127754  Oenanthe sarmentosa Collector unknown 1924-1 s.n. San Mateo La Honda. 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
  UC217609  Orobanche californica subsp. californica Katharine Brandegee San Mateo San Pedro. Comment
  CAS-BOT-BC502777  Orobanche californica subsp. californica W. A. Setchell 1909-8-29 173 San Mateo Farallone City Comment
  JROH3086  Orobanche vallicola John Hunter Thomas 1982-9-12 21155 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera Woods vicinity of Mapache Gate Comment
  POM286520  Orthocarpus densiflorus Arthur L. Cohen 1935-4-21 628 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  POM319954  Orthocarpus densiflorus Barbara Shervanick 1973-4-1 800 San Mateo San Bruno Mt. first summit on Crocker Road; Mt. Range: San Bruno Mountains; Drainage Area: San Francisco Bay. Comment
  SEINET12270178  Orthocarpus densiflorus Unknown 1932-1 8982 San Mateo on way to Gov. Rolph Estate Comment
  RSA178633  Orthocarpus lithospermoides L. R. Abrams 1915-6-7 5237 San Mateo Woodside - Crystal Springs road near junction with Whipple Road. Comment
  HSC23966  Osmorhiza berteroi Mary Katherine Wicksten 1971-6-17 74 San Mateo Huddart Park, along Chickadee Trail Comment
  JROH293  Osmorhiza berteroi John H. Thomas 1961-5-5 9213 San Mateo Jasper Ridge Biological Preserve, Stanford University; long San Francisquito Creek below Searsville Dam 76 Comment
  POM287588  Osmorhiza berteroi Lyman Benson 1930-5-3 2115 San Mateo Woods, above Woodside, Santa Cruz Mtns. 366 Comment
  SEINET12119094  Osmorhiza chilensis Unknown 1932-1 9173 San Mateo Los Francos Woods Comment
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Oct 12 2021
  HSC16710  Oxalis oregana P. A. Murphy 1965-4-16 35 San Mateo 6 mi. from Half Moon Bay in Hatches Woods Comment
  JEPS121492  Oxalis pes-caprae Adam C. Schneider with C. Matt Guilliams 2013-3-9 41 San Mateo Crystal Springs Reservoir, Northern part of western margin of San Francisco Public Utilities Commission land. Comment
  CAS-BOT-BC318250  Packera breweri Otto Holm 1930-5-8 s.n. San Mateo Berenda Farm, near Redwood City. Comment
  JROH5338  Panicum capillare Ann Lambrecht 2006-8-23 29 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek near Dennis Martin marker. 71 Comment
  CAS-BOT-BC253972  Parapholis incurva V. F. Hesse 1964-5-26 3210 San Mateo Near (S of) Pigeon Point 15 Comment
  CAS-BOT-BC265661  Paspalum distichum A. D. E. Elmer 1901-7-1 2876 San Mateo Searsville Comment
  JROH5346  Paspalum distichum John H. Thomas 1978-9-24 19340 San Mateo Jasper Ridge Biological Preserve, Stanford University. East end of dam. Comment
  JROH5351  Paspalum distichum John Rawlings 2011-9-4 1094 San Mateo Jasper Ridge Biological Preserve, Stanford University. At base of dam at trail terminus. 88 Comment
  UCD88918  Paspalum distichum David Hanson 1975-11-24 s.n. San Mateo Half Moon Bay. Comment
  JROH1405  Pectocarya pusilla Toni Corelli 2004-4-18 270 San Mateo Jasper Ridge Biological Preserve, Stanford University. On trail 9 182 Comment
  JROH4094  Pedicularis densiflora Le Roy Abrams 1901-1-27 1102 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  JROH4111  Pedicularis densiflora John H. Thomas 1967-6-1 12970 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA681600  Pedicularis densiflora Annuschka Deb 1989-4-7 80 San Mateo Page Mill Road, About 2 miles from Skyline Blvd., Palo Alto/ Los Altos Hills Comment
  JROH97  Pellaea andromedifolia John H. Thomas 1974-6-30 17465 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH99  Pellaea andromedifolia John H. Thomas 1974-11-5 17662 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail below dam. Comment
  RSA681602  Penstemon heterophyllus Annuschka Deb 1989-6-13 244 San Mateo Yerba Buena Nursery, next to prop house. Comment
  CAS-BOT-BC327978  Pentachaeta alsinoides John H. Thomas 1958-5-10 7155 San Mateo Jasper Ridge, about 5 mi SW of Palo Alto. 182 Comment
  CAS-BOT-BC327980  Pentachaeta alsinoides John H. Thomas 1961-4-29 9184 San Mateo Jasper Ridge, about 5 mi SW of Palo Alto. 182 Comment
  JROH107  Pentagramma triangularis subsp. triangularis John H. Thomas 1956-4-7 5620 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC355896  Pericallis hybrida Phillip C. Wheeler 1965-6-20 s.n. San Mateo San Bruno Mountain. Across road from KRON*TV Comment
  CAS-BOT-BC222704  Perideridia gairdneri subsp. gairdneri Ira L. Wiggins; Roxana S. Ferris 1939-8-2 9295 San Mateo Ano [Ano] Nuevo Point Comment
  JROH313  Perideridia kelloggii John Hunter Thomas 1983-7-20 22905 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3244  Persicaria amphibia J. H. Thomas 1960-6-1 8771 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake near dam. Comment
  CAS-BOT-BC419156  Persicaria maculosa George Oberlander 1949-7-24 317 San Mateo San Francisco Watershed Reserve. San Andreas Lake Comment
  JROH3276  Persicaria maculosa John Hunter Thomas 1980-11-27 20196 San Mateo Jasper Ridge Biological Preserve, Stanford University. Old bathing beach area. Comment
  JROH4172  Petunia parviflora W. R. Dudley 1909-10-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  UCD120300  Phacelia californica J. Doty 1969-3-26 596 San Mateo 100 yards east of the junction of State Highways 35 and 92, near summit of Coast Range. Comment
  POM65455  Phacelia californica A. D. E. Elmer 1903-04 4855 San Mateo Crystal Springs Lake. Comment
  UC75119  Phacelia distans C. F. Baker 1903-4-6 1898 San Mateo San Bruno Hills Comment
  POM128434  Phacelia distans L. R. Abrams 1902-4-13 2345 San Mateo San Mateo Canyon. Comment
  UCD120425  Phacelia distans Lewis S. Rose 1963-5-23 63060 San Mateo Thornton Beach Park. 30 Comment
  JEPS3114  Phacelia divaricata James G. Daly 1934-1 156 San Mateo on ridge s road to La Honda; Santa Cruz Mountains Comment
  RSA128862  Phacelia divaricata W. R. Dudley 1896-4-4 s.n. San Mateo Near Crystal Springs Lake Comment
  CDA929  Phacelia malvifolia D. G. Kelch, B. G. Baldwin, Sue Bainbridge, Abigail Moore 2005-6-21 5 .367 San Mateo S.F. Water District land, near Spring Valley. NE corner Pilarcitos Lake. Comment
  JROH2761  Phacelia nemoralis var. nemoralis John H. Thomas 1973-6-15 16848 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC154292  Phacelia ramosissima Class Collection 1940-1-1 s.n. San Mateo Dunes, Ano Nuevo Point Comment
  SJSU5407  Phaedranthus buccinatorius A. J. Cortopassi 1959-5-9 San Mateo 2319 Hillsdale Dr, Burlingame Comment
  POM199083  Phalaris californica A. D. E. Elmer 1903-06 4699 San Mateo Crystal Springs Lake. Comment
  UCD88577  Phalaris californica P. B. Kennedy 1928-5-2 s.n. San Mateo E of Daly City. Comment
  CAS-BOT-BC250644  Phalaris minor J. H. Thomas 1954-4-3 3828 San Mateo San Gregorio Creek drainage, 1.2 miles inland from San Gregorio 60 Comment
  CAS-BOT-BC250646  Phalaris minor John Thomas Howell 1937-7-5 13099 San Mateo Redwood City along Bayshore Highway Comment
  CAS-BOT-BC250647  Phalaris minor Paul Arnaud 1941-5-3 s.n. San Mateo Redwood City, Jefferson Avenue Comment
  CAS-BOT-BC171183  Phoradendron serotinum subsp. tomentosum John H. Thomas 1960-3-1 8536 San Mateo Jasper Ridge, about 5 miles SW of Palo Alto 182 Comment
  JROH4289  Phoradendron serotinum subsp. tomentosum John H. Thomas 1960-3-1 8536 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  SEINET9341363  Phyllospadix scouleri Unknown 1966-8-8 San Mateo Half Moon Bay Comment
  RSA647542  Phyllospadix torreyi Judy Hansen 1969-6-29 s.n. San Mateo Pidgeon Point. 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
  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
  SEINET10841226  Pickeringia montana Mary Susan Taylor 1978-8-30 Taylor 1867 San Mateo Comment
  CAS-BOT-BC78643  Pinus halepensis Elizabeth McClintock 1989-3-1 s.n. San Mateo Brisbane, above Crocker Industrial Park Comment
  CAS-BOT-BC137319  Piperia elegans Phillip C. Wheeler 1965-5-12 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC137322  Piperia elegans John H. Thomas 1963-9-11 10267 San Mateo Field redacted by CAS, contact the data manager for more information 396 Comment
  JROH676  Pistacia atlantica Toni Corelli 2002-8-12 247 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road H 128 Comment
  CAS-BOT-BC135929  Pittosporum tenuifolium Elizabeth McClintock; Paul Reeberg 1989-8-31 s.n. San Mateo Willow Pond - San Bruno Mountains Comment
  CAS-BOT-BC228133  Plagiobothrys chorisianus John Thomas Howell 1938-5-1 13784 San Mateo Near South San Francisco Comment
  JEPS27368  Plagiobothrys chorisianus Rimo Bacigalupi with Jim Roof and L. Heckard 1961-4-24 7628 San Mateo just e KRON television tower and station (below and se of end of paved ridge-top road, on Guadalupe Valley side of the summit of San Bruno Mountain); San Bruno Mountain 304 Comment
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Aug 22 2013
  POM64748  Plagiobothrys chorisianus C. F. Baker 1902-3-30 429 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC228118  Plagiobothrys chorisianus R. E. Frenkel 1964-4-2 412 San Mateo On Spring Valley Ridge Road, SFWD, at junction of Spring Valley Ridge and Whiting Ridge Roads 347 Comment
  CAS-BOT-BC228130  Plagiobothrys chorisianus Walter & Irja Knight 1965-3-21 946 San Mateo San Bruno Mountains. North Power Line Ridge Comment
  RSA128858  Plagiobothrys chorisianus L. R. Abrams 1904-4-10 s.n. San Mateo Santa Cruz Mountain peninsula, east end of Crystal Springs Lake Comment
  CAS-BOT-BC228156  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1896-4-17 s.n. San Mateo The Santa Cruz Mountain Peninsula. Pasture near Pebble Beach, Pescadero Comment
  CAS-BOT-BC228157  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1893-5-1 s.n. San Mateo The Santa Cruz Mountain Peninsula. N of San Bruno Comment
  CAS-BOT-BC228154  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1893-5-27 s.n. San Mateo The Santa Cruz Mountain Peninsula. By road from Hayman's Ranch to San Gregorio Creek Comment
  CAS-BOT-BC228160  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1900-3-18 s.n. San Mateo The Santa Cruz Mountain Peninsula. Top of first summit E of Salada Valley Comment
  JROH1415  Plagiobothrys chorisianus var. hickmanii John H. Thomas 1974-5-3 17241 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7076093  Plagiobothrys chorisianus var. hickmanii A. G. Vestal 1955-5-31 s.n. San Mateo Near Pebble Beach off Route 1. (NAD 27; 37.2369? deg. North Latitude, 122.4153? deg. West Longitude, UTM Zone 10, 551863mE, 4121109mN). [GPS Coordinate: WGS84/NAD83]. Comment
  JROH1430  Plagiobothrys nothofulvus John Hunter Thomas 1988-4-7 24378 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CHSC59771  Plantago erecta Jan M. Karaz 1979-5-22 29 San Mateo 500 ft west of Canada College Campus Drive, 1.8 mi west of Hwy 280. 5 Comment
  JROH3111  Plantago erecta John H. Thomas 1974-4-4 17084 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
  HSC16822  Plantago erecta L. S. Rose 1965-5-3 65056 San Mateo San Bruno Mtn., N end 183 Comment
  POM283963  Plantago erecta Arthur L. Cohen 1935-4-21 623 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  RSA184882  Plantago erecta L. S. Rose 1965-5-3 65056 San Mateo San Bruno Mountain, North end. 183 Comment
  UCD124478  Plantago erecta Lewis S. Rose 1965-5-3 65056 San Mateo San Bruno Mountain, north end. 182 Comment
  RSA176597  Plantago hirtella var. galeottiana John H. Thomas 1964-6-19 10433 San Mateo Near Pigeon Pt. Lighthouse. Comment
  CDA34345  Plantago major E. Finley 1990-10-16 s.n. San Mateo Shoreline Blvd, Mountain View. 0 Comment
  JROH3132  Plantago major John H. Thomas 1959-8-22 8082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA788373  Plantago major Peter Rubtzoff, Roman Gankin 1975-9-11 8371 San Mateo Pond NW and across old Guadalupe Road from 'Saddle' area (which is located on north side of Guadalupe Canyon Parkway, west of Radio Road junction). Comment
  UC136736  Plantago maritima var. californica Dr. E. B. Copeland 1903-6-5 3331 San Mateo Montara Point Comment
  UC888462  Plantago maritima var. californica Lewis S. Rose 1937-9-5 37645 San Mateo Mussel Rocks 60 Comment
  SEINET8389512  Plantago subnuda J. H. Thomas 1964-6-19 10433 San Mateo near Pigeon Pt. Lighthouse. Comment
  CAS-BOT-BC92017  Platystemon californicus Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon. Comment
  CHSC24850  Platystemon californicus B. A. Rosene 1976-4-18 5 San Mateo Ca. 2.4 km nw of entrance to Calif. State Game Refuge. 182 Comment
  RSA6413  Platystemon californicus var. californicus D. D. Keck 1932-5-6 1473 San Mateo Burlingame. Comment
  JROH4248  Plectritis ciliosa Carol Zabel 2006-4-24 58 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dirt trail up slope towards global change area, across from big parking area. Comment
  JROH4244  Plectritis congesta subsp. brachystemon John Hunter Thomas 1979-5-10 19546 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC6386  Plectritis congesta subsp. nitida Amos Arthur Heller 1907-5-28 8578 San Mateo Above Crystal Springs Lake Comment
  JEPS20199  Plectritis macrocera L. R. Abrams 1904-4-10 San Mateo on road from Woodside to Crystal Springs (Santa Cruz Mountain Peninsula); Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC260965  Pleuropogon californicus var. californicus George Oberlander 1950-6-3 614 San Mateo San Francisco Watershed Reserve Comment
  JROH5767  Pleuropogon californicus var. californicus John Rawlings 2006-5-1 0848 San Mateo Jasper Ridge Biological Preserve, Stanford University. Vernally wet area between Sand Hill Road and main entry road to preserve. 121 Comment
  CAS-BOT-BC257692  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
  RSA800330  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
  JROH5410  Poa howellii John Rawlings 2012-5-1 1115 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Trail 9 162 Comment
  CAS-BOT-BC261644  Poa infirma Peter Rubtzoff 1988-5-3 9912 San Mateo San Bruno Mountain, Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road in the northwest part of the Saddle area, east of Saddle Trail Junction. Comment
  CAS-BOT-BC261657  Poa infirma Peter Rubtzoff 1988-5-3 9918 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-BC255844  Poa kelloggii Roxana S. Ferris 1920-4-26 1963 San Mateo Near mouth of canyon of Pescadero Creek, Santa Cruz Mountain Peninsula 243 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
  RSA785876  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
  JROH5416  Poa pratensis subsp. pratensis John Hunter Thomas 1977-6-16 18801 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA135725  Poa secunda W. R. Dudley 1900-3-18 s.n. San Mateo San Andreas Lake Comment
  CAS-BOT-BC243114  Poa secunda subsp. secunda Ned Cahill 1974-5-30 308 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles W from Redwood City Comment
  CAS-BOT-BC243120  Poa secunda subsp. secunda W. R. Dudley 1900-3-16 s.n. San Mateo By Redwood stage road Comment
  CAS-BOT-BC243123  Poa secunda subsp. secunda L. R. A. 1902-5-4 2408 San Mateo Woodside Comment
  CAS-BOT-BC539283  Poa secunda subsp. secunda John Rawlings; Ken Hickman 2015-6-8 1575 San Mateo Caltrans right-of-way above Hwy 92 E of Hwy 280, downslope from San Francisco Watershed fenceline 118 Comment
  CAS-BOT-BC243117  Poa secunda subsp. secunda W. R. Dudley 1900-3-16 s.n. San Mateo Santa Cruz Mountain Peninsula. By Redwood stage road, [vicinity of Redwood City?] Comment
  CAS-BOT-BC244251  Poa unilateralis 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
  POM204731  Poa unilateralis C. F. Baker 1904-5-24 3259 San Mateo Montara Point. Comment
  SJSU15794  Poa unilateralis subsp. unilateralis Toni Corelli 2010-7-8 643 San Mateo Bean Hollow State Beach along Arroyo de los Frijoles Trail 10 Comment
  JROH2858  Pogogyne serpylloides John H. Thomas 1973-6-10 16827 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2862  Pogogyne serpylloides John Hunter Thomas 1981-4-23 20493 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0022142  Pogogyne serpylloides John H. Thomas 1961-5-7 9270 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  POM64835  Polemonium carneum L. R. Abrams 1916-4-22 5576 San Mateo Santa Cruz Mountains Peninsula: Pilarcitos Canyon Comment
  UC107058  Polemonium carneum Mrs. Frances Howland 1901-3-30 San Mateo Lake Pelarcitos Comment
  CAS-BOT-BC413805  Polycarpon tetraphyllum R. I. Gilbreath 1975-8-1 0085 San Mateo School yard near 366 Alberta Way, Hillsborough 167 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
  CAS-BOT-BC6613  Polygonum coccineum f. terrestre Charles Fuller Baker 1902-10-20 1835 San Mateo Searsville Comment
  CAS-BOT-BC109239  Polygonum paronychia V. F. Hesse 1954-7-30 1343 San Mateo Near Pebble Beach. 15 Comment
  CAS-BOT-BC109242  Polygonum paronychia Louis F. Pitelka 1974-5-28 s.n. San Mateo Bolsa Point, about 1 mile north of Pigeon Point and about 39 miles south of San Francisco. Comment
  SEINET3086523 Image available Polygonum paronychia C. W. Sharsmith 1950-4-16 6627 San Mateo Vicinity of Pescadero Point, near Pescadero. Comment
  SJSU2298  Polygonum paronychia C. W. Sharsmith 1950-4-16 6627 San Mateo near Pescadero Point, near Pescadero Comment
  UC168662  Polygonum punctatum C. F. Baker 1903-10-20 1857 San Mateo Searsville Comment
  UC733135  Polygonum punctatum Roxana S. Ferris 1945-9-25 11107 San Mateo Pedro Point; State Hwy 1 Comment
  SBBG32442  Polypodium californicum L. S. Rose 1964-2-6 64001 San Mateo King's Mtn 609 Comment
  JROH76  Polypodium californicum John H. Thomas 1964-11-29 10541 San Mateo Jasper Ridge Biological Preserve, Stanford University. 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
  UCSB17938  Polypodium californicum Schulte, John 1963-4-14 San Mateo NE Jasper Ridge, 3 mi SW of Stanford campus, between Santa Clara Valley and Santa Cruz Mtns. 152 Comment
  UC766795  Polypodium calirhiza R. F. Hoover 1941-2-12 4759 San Mateo La Honda Creek above La Honda Comment
  CAS-BOT-BC76806  Polypodium glycyrrhiza W. R. Dudley 1898-3-5 s.n. San Mateo Santa Cruz Peninsula - King's Mountain Comment
  JEPS79496  Polypodium glycyrrhiza Edward Lee with A. Carter, E. Crum, and C. Belshaw 1936-1-26 1721 San Mateo 2.6 mi out of Woodside (e side Cahill Ridge, Kings Mt. Rd.) Comment
  CAS-BOT-BC76803  Polypodium glycyrrhiza W. R. Dudley 1893-2-19 s.n. San Mateo Santa Cruz Peninsula - near La Honda Comment
  UC42920  Polypodium scouleri J. Burtt Davy 1893-6-22 San Mateo top of Pilarcitos Canyon Comment
  UC931949  Polypodium scouleri Verne Grant and Alva Grant 1946-8-30 7851 San Mateo ranch 1 mi s of Daly City (on Hwy. 5) 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-BC237355  Polypogon monspeliensis S. D. Halsey 1908-11-7 s.n. San Mateo Salt marsh near Cooleys Landing Comment
  SEINET10593598  Polypogon monspeliensis Delzie Demaree 1932-5-22 Demaree 9167 San Mateo Mud Lakes Los Francos Woods. Mud Lakes Comment
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Nov 1 2021
  CAS-BOT-BC72150  Polystichum californicum Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  JROH45  Polystichum dudleyi Lawrence J. Winship 1974-11-2 1 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC76604  Polystichum munitum Ira L. Wiggins 1928-4-14 2921 San Mateo Alpine Creek Road Comment
  UCR248356  Polystichum munitum Peter Rubtzoff 1987-8-26 9844 San Mateo San Bruno Mountain, East Fork Colma Creek Canyon 244 Comment
  UCSB18690  Populus trichocarpa Schulte, John 1963-4-9 San Mateo 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 121 Comment
  JROH3359  Portulaca oleracea John H. Thomas 1978-9-24 19341 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB271  Potamogeton amplifolius McPherson, D. 1960-8-1 San Mateo Ventura Comment
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2
  SEINET10501698  Potamogeton filiformis var. macounii Mary Susan Taylor 1978-8-30 Taylor 1875 San Mateo Comment
  JROH5513  Potamogeton illinoensis John H. Thomas 1964-10-2 10509 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake near bridge Comment
  UC814176  Potamogeton pectinatus Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9293 San Mateo Ano Nuevo Point Comment
  UC204845  Potamogeton pusillus var. pusillus W. R. Dudley July 1893 San Mateo Searsville Pond Comment
  CAS-BOT-BC141935  Potentilla anserina subsp. pacifica Robert Robertson 1954-4-17 85 San Mateo By stream near coast north of Moss Beach (Montara) 4 Comment
  POM203299  Potentilla hickmanii E. C. Satlife 1933-11-10 s.n. San Mateo Moss Beach Comment
  JROH4676  Prosartes hookeri John Hunter Thomas 1985-4-25 23567 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC516344  Prosartes hookeri Le Roy Abrams 1902-5-20 2467 San Mateo King's Mountain Comment
  CAS-BOT-BC516346  Prosartes hookeri D. D. Davis 1903-5-2 s.n. San Mateo Near La Honda, Santa Cruz Peninsula Comment
  CAS-BOT-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-BC516356  Prosartes hookeri W. R. Dudley 1893-4-1 s.n. San Mateo Bear Gulch Road, Santa Cruz Mts., Santa Cruz Peninsula Comment
  CAS-BOT-BC516357  Prosartes hookeri Ira L. Wiggins 1928-4-14 2912 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC516360  Prosartes hookeri W. R. Bentley 1957-5-11 83 San Mateo La Honda Road, 1/2 mile east of La Honda 152 Comment
  SEINET12054259  Prosartes hookeri Cummings, McCallum, G. A. 1933-1 s.n. San Mateo along Stevens Creek Comment
  SEINET12054260  Prosartes hookeri Unknown 1932-1 8971 San Mateo Los Franco woods Comment
  CAS-BOT-BC517388  Prosartes smithii E. W. Rust 1887-4-27 133 San Mateo Kings Mountain Comment
  CAS-BOT-BC517391  Prosartes smithii W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Peninsula,La Honda Road 512 Comment
  UC1124440  Prunella vulgaris var. lanceolata A. E. Wieslander 1935-2-3 508 San Mateo 0.5 mi se Pigeon Pt.; Santa Cruz Quad. Comment
  RSA101018  Prunella vulgaris var. lanceolata G. Oberlander 1941-7-30 331 San Mateo Cahill Ridge, San Francisco Watershed Reserve Comment
  POM275641  Prunus cerasifera Lyman D. Benson 1929-3-9 1001 San Mateo Stream bank at woodside Comment
  CAS-BOT-BC158172  Prunus emarginata Elizabeth McClintock; Phillip Wheeler 1967-5-14 s.n. San Mateo Vicinity of fence separating Brisbane from Crocker State Company portion of mountain, on east side of mountain above southern ravine of Buckeye Canyon Comment
  UC12742  Prunus emarginata J. Burtt Davy 1895-4-20 1032 San Mateo Lake San Andreas Comment
  CAS-BOT-BC154505  Prunus ilicifolia Elizabeth McClintock; Paul Reeberg 1988-6-7 s.n. San Mateo Islay Ravine Comment
  CAS-BOT-BC156355  Prunus virginiana var. demissa Phillip C. Wheeler 1965-5-18 s.n. San Mateo Mouth of Colma Canyon, north facing slope Comment
  JROH3750  Prunus virginiana var. demissa Toni Corelli 2006-8-9 319 San Mateo Jasper Ridge Biological Preserve, Stanford University; down slope along fire Road E, above deep inlet 109 Comment
  RSA681426  Prunus virginiana var. demissa Annuschka Deb, Lori Hubbart 1989-5-10 208 San Mateo Santa Cruz Mtns. Skyline Blvd S of Yerba Buena Nursery (YBN) Comment
  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
  JROH758  Pseudognaphalium californicum John H. Thomas 1971-5-30 15971 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH780  Pseudognaphalium luteoalbum John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC357132  Pseudognaphalium luteoalbum E. E. Hill 1934-9-1 s.n. San Mateo E. E. Hills place, Burlingame Comment
  JROH773  Pseudognaphalium luteoalbum J. H. Thomas 1958-12-21 7510 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  SD61039  Pseudognaphalium microcephalum Darley F. Howe 1964-8-13 3958 San Mateo Near ocan on Highway 1. Comment
  CAS-BOT-BC357509  Pseudognaphalium ramosissimum John H. Thomas 1976-10-7 18391 San Mateo Along coast highway #1, 0.6 miles north of northern most road to Pigeon Pt. Lighthouse. About 4.2 miles almost due south of Pescadero 30 Comment
  CAS-BOT-BC361568  Pseudognaphalium stramineum Lewis S. Rose 1966-8-6 66079 San Mateo San Bruno Mountain, Colma Canyon 121 Comment
  SJSU7541  Pseudognaphalium stramineum L. S. Rose 1966-8-6 66079 San Mateo Colma Canyon, San Bruno Mt 121 Comment
  HSC24038  Pseudognaphalium thermale Mary Katherine Wicksten 1971-6-17 55 San Mateo Huddart Park on Chickadee Trail Comment
  CAS-BOT-BC85907  Pseudotsuga menziesii W. R. Dudley 1894-3-24 s.n. San Mateo Santa Cruz Mountain Peninsula, bank of Pescadero Cr. Comment
  RSA107418  Pseudotsuga menziesii L. S. Rose 1955-9-19 55178 San Mateo Skyline Boulevard, 7 miles west of Saratoga. 686 Comment
  UCR201596  Pseudotsuga menziesii June Latting 1972-4-21 s.n. San Mateo Central Coast, Santa Cruz Mountains, Pseudotsuga study site 777 Comment
  CAS-BOT-BC362019  Psilocarphus tenellus George Oberlander 1950-5-6 909 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  JROH1180  Psilocarphus tenellus John H. Thomas 1963-5-12 10087 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1186  Psilocarphus tenellus John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1194  Psilocarphus tenellus John Hunter Thomas 1991-5-9 25041 San Mateo Jasper Ridge Biological Preserve, Stanford University; below picnic area along road to dam Comment
  SBBG28043  Psilocarphus tenellus L. S. Rose 1933-5-3 33140 San Mateo Montara Comment
  JEPS35778  Psilocarphus tenellus V. F. Hesse 1964-5-26 3199 San Mateo Whitehouse Creek Road near coast 60 Comment
  JROH15  Pteridium aquilinum var. pubescens John H. Thomas 1970-5-16 15633 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH13  Pteridium aquilinum var. pubescens John Hunter Thomas 1981-4-5 20284 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek from Redwood area to Zoology Cabin ruins Comment
  CAS-BOT-BC421315  Pterostegia drymarioides John H. Thomas 1961-5-13 9333 San Mateo At Franklin Point. Comment
  JROH3289  Pterostegia drymarioides John H. Thomas 1976-4-19 18082 San Mateo Jasper Ridge Biological Preserve, Stanford University. Knoll to west of dam. Comment
  RSA181251  Pyracantha koidzumii John H. Thomas 1963-10-4 10268 San Mateo Along Bayshore Freeway about 1/2 mile SE of its intersection with HIllsdale Blvd. Comment
  JROH2530  Quercus John H. Thomas 1974-4-4 17087 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD45070  Quercus agrifolia Stephen K. Langer 1991-3-16 s.n. San Mateo California, San Mateo Co.; San Bruno Mountains, Buckeye Canyon. Comment
  JROH2464  Quercus agrifolia var. agrifolia John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC62303  Quercus chrysolepis Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo Crocker Hills Comment
  CAS-BOT-BC62340  Quercus chrysolepis LeRoy Abrams 1906-10-7 s.n. San Mateo Portola, Santa Cruz Mtns. Comment
  UCD45583  Quercus chrysolepis John M. Tucker 1941-4-6 209 San Mateo On ridge north of Finny Creek, directly inland from Ano Nuevo Pt., San Mateo County, California. Comment
  JROH2468  Quercus douglasii Elmer I. Applegate 1895-5-11 644 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Comment
  RSA623990  Quercus douglasii R. Hoffough 1929-4-27 272 San Mateo Jasper Ridge, Santa Cruz Mountains Comment
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Dec 6 2010
  CAS-BOT-BC389726  Quercus dumosa M. K. Wicksten 1971-6-15 63 San Mateo Unspecified Comment
  JROH2491  Quercus durata var. durata John Hunter Thomas 1980-5-6 19936 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2505  Quercus kelloggii John Hunter Thomas 1981-4-7 20298 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5942  Quercus kelloggii John Rawlings, Sara Timby 2017-3-3 1964 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 5 96 Comment
  POM270206  Quercus kelloggii Lyman Benson 1932-8-1 4034 San Mateo Stanford University, Santa Cruz mountain range, Corte Madera Creek watershed. 122 Comment
  RSA571671  Quercus kelloggii D. D. Keck 1932-3-6 1395 San Mateo La Honda road above Searsville Lake, Santa Cruz Mountains. Comment
  UC311547  Quercus kelloggii A. D. E. Elmer May 1903 4520 San Mateo Searsville Lake Comment
  UCD46744  Quercus kelloggii Edmond Holm 1993-10-20 s.n. San Mateo (Q. parvula Greene var. shrevei (Muller) Nixon. California, San Mateo Co.; Huddart Park, near Miwok Picnic Area. Comment
  UCSB1185  Quercus kelloggii Haller, John 1950-4-26 San Mateo Stanford University, near highway bridge over cree, at edge of golf course 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
  UC1083146  Quercus lobata Herbert L. Mason 1924-10-8 1109 San Mateo between Stanford University and Jasper Ridge Comment
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Sep 19 2011
  HSC24046  Quercus wislizeni Mary Katherine Wicksten 1971-6-17 14 San Mateo Huddart Park, bank along Zwierlein Trail near parking lot Comment
  CAS-BOT-BC134781  Quercus wislizeni W. R. Dudley 1902-11-28 s.n. San Mateo Santa Cruz Peninsula. In front of Murphy Place, Upper Pescadero Creek Comment
  POM270261  Quercus wislizeni var. wislizeni Lyman Benson 1932-8-1 4028 San Mateo Stanford University, Santa Cruz Mt. Range, Corte Madera Creek watershed. 122 Comment
  JEPS54964  Ranunculus californicus W. L. Jepson 1914-3-22 5730 San Mateo Redwood City Comment
  JROH3470  Ranunculus californicus John H. Thomas 1968-3-31 14258 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow near crest of NE facing slope above Webb Ranch Comment
  POM268423  Ranunculus californicus Arthur L. Cohen 1935-4-21 618 San Mateo Jasper Ridge, San Francisquito Creek. 122 Comment
  RSA400645  Ranunculus californicus E. S. Spalding 1923-8-3 s.n. San Mateo Near Pulgas Tunnel. Comment
  JEPS127797  Ranunculus californicus var. californicus Adam C. Schneider with C. Matt Guilliams 2013-4-7 68 San Mateo Along dirt road running parallel to overhead power transmission lines. Comment
  UCR136711  Ranunculus californicus var. californicus E. W. Rust 1907-3-28 79 San Mateo Santa Cruz Mountains, Alta Vista 183 Comment
  CAS-BOT-BC378528  Ranunculus californicus var. californicus Javier Penalosa 1965-2-25 2635 San Mateo San Bruno Mtn. ravine south of Crocker Ave. 213 Comment
  CAS-BOT-BC378536  Ranunculus californicus var. californicus Daniel Cohen 1953-4-11 12 San Mateo grassy meadow on north shore of Searsville Lake Comment
  CAS-BOT-BC378540  Ranunculus californicus var. californicus Ned Cahill 1974-4-23 165 San Mateo serpentine fields bordered by chaparral, near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC378550  Ranunculus californicus var. californicus Paul F. Covel 1937-4-15 644 San Mateo Hgwy no. Half Moon Bay Comment
  JROH3482  Ranunculus hebecarpus John H. Thomas 1976-4-19 18083 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail in oakwoodland near dam. Comment
  JROH3489  Ranunculus hebecarpus John Hunter Thomas 1986-4-22 23970 San Mateo Jasper Ridge Biological Preserve, Stanford University. Wooded slope above east arm of Searsville Lake Comment
  CAS-BOT-BC83420  Ranunculus lobbii W. R. Dudley 1904-4-10 s.n. San Mateo Near junction of Page Mill Road and Skyline Boulevard. Comment
  CAS-BOT-BC83423  Ranunculus lobbii J McMurphy 1904-1-1 s.n. San Mateo Coal Mine Ridge. Comment
  SBBG33475  Ranunculus lobbii A. D. E. Elmer -Apr-1903 4734 San Mateo Alpine School House Comment
  UCR49694  Ranunculus lobbii J. J. McMurphy 1906-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. Pond near Head of Crystal (?) Springs Lakes 85 Comment
  POM148951  Ranunculus orthorhynchus var. bloomeri A. D. E. Elmer 1903-06 4665 San Mateo San Pedro. Comment
  SD234165  Ranunculus repens Claude Bonang 1958-5-3 29 San Mateo Found in lawn in front of Jordan Hall, Stanford University. Comment
  JEPS85565  Rhamnus californica Craig Dremann 1986-8-30 325 San Mateo near San Gregorio (Stage road, 450 ft s of intersection of Seaside School road, on e side of school) Comment
  POM283034  Rhamnus californica Lyman Benson 1937-7-8 8447 San Mateo Lake Searsville, Stanford, Mt. Range: Santa Cruz; Watershed: San Francisco Bay 122 Comment
  UC1121739  Rhamnus californica C. M. Belshaw 1935-1-25 1458 San Mateo 2.8 mi w Woodside; Santa Cruz Quad. 457 Comment
  UC1121743  Rhamnus californica A. E. Wieslander 1935-2-2 505 San Mateo 0.5 mi se Pigeon Pt.; Santa Cruz Quad. 30 Comment
  UC33635  Rhamnus californica subsp. californica Jos. Burtt Davy 1893-6-22 841 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC55893  Rhamnus crocea Carl B. Wolf 1928-3-16 1540 San Mateo Jasper Ridge, near Searsville Lake Comment
  JROH3559  Rhamnus crocea John H. Thomas 1963-3-20 10029 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Westridge end of ridge. Comment
  JROH5728  Rhamnus crocea John Rawlings 2015-3-3 1306 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 8 twenty-five yards south of Trail 7 intersection. 134 Comment
  POM282946  Rhamnus crocea Lyman Benson 1937-7-25 8473 San Mateo Lake Searsville; Mt. range: Santa Cruz; Drainage area: San Francisco Bay. 122 Comment
  UC592766  Rhamnus crocea unknown 1927-8-7 717 San Mateo back of Stanford University (at Schenkel's Camp); Los Trancos Creek Comment
  JROH3568  Rhamnus ilicifolia John H. Thomas 1972-5-5 16078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC437976  Ribes Alice Eastwood 1922-5-30 11332 San Mateo Crystal Springs Lakes Comment
  CAS-BOT-BC92491  Ribes aureum var. gracillimum A. D. E. Elmer 1903-5-1 4514 San Mateo Portola. Comment
  JROH2633  Ribes aureum var. gracillimum Carol Zabel 1989-8-7 22 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 12 at bridge nearest Mapache Gate. Comment
  RSA476444  Ribes californicum L. H. Jones 1909-3-5 s.n. San Mateo 600 feet on the west side of Jasper Ridge, Stanford University. Comment
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Sep 19 2011
  CAS-BOT-BC6176  Ribes deductum Charles Fuller Baker 1902-4-4 441 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC173082  Ribes divaricatum var. pubiflorum Lewis S. Rose 1965-3-16 65008 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC173090  Ribes divaricatum var. pubiflorum W. R. Dudley 1895-2-23 s.n. San Mateo Above last bridge on San Francisquito Cr. near Stanford University Comment
  RSA0025027  Ribes divaricatum var. pubiflorum A. D. E. Elmer 1903-05 4511 San Mateo Searsville Lake Comment
  CAS-BOT-BC173471  Ribes malvaceum Fred Hemphill 1973-4-15 643 San Mateo San Carlos. Area north of Malabar Rd. and Melendy Dr. 207 Comment
  LA205482  Ribes malvaceum Lillian Lockwood; 1908-3-9 sn San Mateo Coal Mine Ridge Comment
  RSA0021676  Ribes malvaceum Lyman Benson 1931-1-25 2576 San Mateo Continuation of Page Mill Road toward La Honda. Stanford University, Santa Cruz Mountain Range. 244 Comment
  JROH2664  Ribes malvaceum var. malvaceum John H. Thomas 1968-2-11 14146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC212830  Ribes menziesii George Oberlander 1950-3-11 495 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC212833  Ribes menziesii W. R. Dudley 1893-3-23 s.n. San Mateo Canada Cr. near Searsville Comment
  CAS-BOT-BC212844  Ribes menziesii W. & I. Knight 1963-7-14 s.n. San Mateo Upper rim, above Quarry, San Bruno Mountains Comment
  CAS-BOT-BC212846  Ribes menziesii L. R. Abrams 1912-3-30 4999 San Mateo Pescadero Creek near Iverson's Comment
  CAS-BOT-BC212818  Ribes menziesii W. R. Dudley 1906-6-12 s.n. San Mateo Back of winery, West Union Gulch Comment
  SEINET12220270  Ribes menziesii Unknown 1932-1 8946 San Mateo Los Francos Woods Comment
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Nov 1 2021
  JROH2668  Ribes menziesii var. menziesii John H. Thomas 1974-6-27 17447 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC463132  Ribes menziesii var. senile W. R. Dudley 1894-3-23 San Mateo above Searsville Dam (below McDonough ranch); Santa Cruz Peninsula, Canada Creek Comment
  CDA34444  Ribes sanguineum M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 874 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 Comment
  CAS-BOT-BC144631  Ribes sanguineum var. glutinosum Lewis S. Rose 1931-1-25 s.n. San Mateo Belmont Comment
  JROH2673  Ribes sanguineum var. glutinosum John H. Thomas 1964-4-7 10300 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near edge of Searsville Lake. Comment
  UC921843  Ribes sanguineum var. glutinosum Lillian Lockwood 1908-3-9 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC207159  Ricinus communis John H. Thomas 1967-5-25 11637 San Mateo Menlo Park, near Southern Pacific train station. Comment
  UC517992  Rigiopappus leptocladus Lewis S. Rose 1933-4-30 33130 San Mateo Redwood City Comment
  CAS-BOT-BC363092  Rigiopappus leptocladus L. R. Abrams 1910-5-7 s.n. San Mateo Santa Cruz Mountain Peninsula. Between Woodside and Crystal Springs Lakes 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
  UC306561  Romanzoffia californica A. D. E. Elmer May, 1903 4482 San Mateo towards San Mateo Crystal Springs Lake Comment
  SD37966  Rorippa curvisiliqua var. curvisiliqua Jane T. Turner 1933-5-15 3671 San Mateo Mud Lake Comment
  CAS-BOT-BC147622  Rosa californica Walter Knight; Irja Knight 1964-5-30 618 San Mateo Colma Canyon Comment
  JROH3756  Rosa californica Toni Corelli 2007-8-29 335 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 1 just before first redwood grove, above San Francisquito Creek 80 Comment
  CAS-BOT-BC146696  Rosa gymnocarpa Margaret A. Barry 1937-5-15 85 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC146697  Rosa gymnocarpa George Oberlander 1949-4-30 134 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC146703  Rosa gymnocarpa Ira L. Wiggins 1928-4-14 2922 San Mateo Alpine Creek Road Comment
  RSA195394  Rosa gymnocarpa W. R. Dudley 1906-5-8 65 San Mateo Near Crystal Springs Lake. Santa Cruz Mtns. Santa Cruz peninsula. 91 Comment
  CAS-BOT-BC146694  Rosa gymnocarpa W. R. Dudley 1896-4-17 s.n. San Mateo By Hallades Trail near wire cable between Portola and La Honda Road Comment
  SEINET10736898 Image available Rosa gymnocarpa var. gymnocarpa Adolph D. E. Elmer Elmer 4923 San Mateo Pescadero. Comment
  JROH2869  Rosmarinus officinalis Diane Renshaw, Ann Lambrecht 2011-6-21 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; N of Westridge fence near Escobar Rd. turnaround Comment
  CAS-BOT-BC152834  Rubus parviflorus A. D. E. Elmer 1903-6-1 4294 San Mateo Alpine School House Comment
  CAS-BOT-BC152836  Rubus parviflorus George Oberlander 1950-4-23 902 San Mateo Pilarcitos Canyon - San Francisco Watershed Reserve Comment
  CAS-BOT-BC152837  Rubus parviflorus Margaret A. Barry 1938-5-1 251 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC152872  Rubus parviflorus W. S. Atkinson 1901-7-1 s.n. San Mateo Pescadero Cr., Santa Cruz Peninsula Comment
  UCD113862  Rubus parviflorus Carolyn Lundquist 1994-5-30 25 San Mateo Henrik Ibsen Park, Woodside, 13800 Skyline Blvd. 609 Comment
  CAS-BOT-BC152866  Rubus parviflorus Elizabeth McClintock 1965-3-28 s.n. San Mateo Columbine Gulch - San Bruno Mountain Comment
  CAS-BOT-BC156771  Rubus spectabilis A. D. E. Elmer 1903-5-1 4788 San Mateo Spanishtown Comment
  SJSU8648  Rubus spectabilis H. E. Kuhlmann 1979-4-9 351 San Mateo 1-2 mi inland from Hwy 1 on Gazos Cr Rd between Butano State Park & the coast 45 Comment
  UCR51532  Rubus spectabilis var. franciscanus 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-BC158710  Rubus ulmifolius Margaret Bellue 1945-8-23 s.n. San Mateo Along creek on property in Redwood City. Comment
  CAS-BOT-BC157069  Rubus ursinus Margaret A. Barry 1938-4-21 243 San Mateo Woods on Coal Mine Ridge Comment
  CAS-BOT-BC157070  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6055 San Mateo Near Pescadero Comment
  CAS-BOT-BC157088  Rubus ursinus Robert Robertson 1954-5-1 129 San Mateo Near San Gregorio Creek 6 Comment
  CAS-BOT-BC157091  Rubus ursinus Ned Cahill 1975-1-18 397 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC157109  Rubus ursinus John Thomas Howell 1938-6-4 13887 San Mateo Burlingame Comment
  JEPS25749  Rubus ursinus L. R. Heckard with Rimo Bacigalupi 1961-5-14 1234 San Mateo Canyon of Pilarcitos Creek about 0.5 mi below Stone Dam Reservoir; Canyon of Pilarcitos Creek below Stone Dam Reservoir 182 Comment
  CAS-BOT-BC422080  Rumex acetosella John H. Thomas 1958-3-19 7064 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 91 Comment
  CAS-BOT-BC422078  Rumex acetosella Elsie Zeile 1911-3-30 s.n. San Mateo S. San Francisco 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
  UCD101038  Rumex acetosella E. M. Johnston Jun and Jul 191 11 San Mateo Bay Region, Millbrae. Comment
  CAS-BOT-BC421568  Rumex crassus W. R. Dudley 1909-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Mussel Rock. Comment
  UC1101213  Rumex maritimus Malcolm A. Nobs and S. Galen Smith 1949-8-26 1590 San Mateo mouth of Pescadero Creek Pescadero Creek Comment
  CAS-BOT-BC433828  Rumex pulcher Margaret Barry 1938-5-14 269 San Mateo Coal Mine Ridge Comment
  UCD101450  Rumex pulcher W. A. Harvey; J. M. Tucker 1948-6-28 1695 San Mateo 3 miles north of Pescadero. Comment
  CAS-BOT-BC433997  Rumex salicifolius Josephine D. Randall 1907-7-23 291 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  JROH3314  Rumex salicifolius Toni Corelli 2006-8-9 320 San Mateo Jasper Ridge Biological Preserve, Stanford University; road E near intersection of Trail 14 118 Comment
  CAS-BOT-BC433996  Rumex salicifolius W. R. Dudley 1909-10-10 s.n. San Mateo Santa Cruz Mountain Peninsula. E. shore of N. pond, Crystal Springs Res. Comment
  RSA788846  Rumex salicifolius var. transitorius Peter Rubtzoff 1979-7-26 9299 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC434132  Rumex transitorius Alice Eastwood; John Thomas Howell 1938-6-26 6061 San Mateo Near Pescadero Comment
  JROH2214  Rupertia physodes John H. Thomas 1974-6-27 17455 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the low flow crossing below Searsville Dam Comment
  UCD163902  Ruta Peter Rubtzoff 1988-4-12 9901 San Mateo San Bruno Mountain, on east side of Summit Road (former Radio Road), ca. 1 mile from San Bruno Mtn. Park entrance. Comment
  UC1738942  Rytidosperma caespitosum Glenn Clifton 1992-8-4 San Mateo between Whitehorse Creek and Cascade Creek Santa Cruz Mountains, Cascade Ranch State Park 15 Comment
  JROH1723  Sagina apetala Toni Corelli 2009-3-25 349 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road F along road 152 Comment
  CAS-BOT-BC103342  Salix bonplandiana W. R. Dudley 1894-4-21 s.n. San Mateo By bridge above San Mateo Comment
  CAS-BOT-BC125380  Salix lasiandra var. lasiandra J. Ed. McClellan; Bonnie McClellan 1976-4-1 s.n. San Mateo Princeton Comment
  CAS-BOT-BC166959  Salix lasiolepis Peter Rubtzoff 1976-3-14 8447 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  HSC19995  Salix lasiolepis L. S. Rose 1965-3-8 65004 San Mateo Searsville Lake 122 Comment
  RSA249478  Salix lasiolepis John F. Emmel 1972-6-4 404 San Mateo Large canyon bottom 1.1 air miles NW of 1314' summit. Along Guadalupe Canyon Parkway. San Bruno Mtns. 107 Comment
  JROH3855  Salix lasiolepis John H. Thomas 1968-3-17 14176 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC108254  Salix lasiolepis var. bigelovii Roxana S. Ferris 1921-4-7 2145 San Mateo Baden Station - Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC108256  Salix lasiolepis var. bigelovii Peter H. Raven 1964-9-13 19673 San Mateo San Gregorio Comment
  CAS-BOT-BC108257  Salix lasiolepis var. bigelovii W. R. Dudley 1899-5-14 s.n. San Mateo Near brook SW of Baden Comment
  CAS-BOT-BC108260  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
  RSA184900  Salix lucida subsp. lasiandra L. S. Rose 1965-3-16 65007 San Mateo Searsville Lake. 122 Comment
  CAS-BOT-BC126485  Salix sitchensis W. R. Dudley 1906-3-18 s.n. San Mateo [King's] Kings Mt. Road Comment
  CAS-BOT-BC126489  Salix sitchensis A. D. E. Elmer 1903-3-1 4874 San Mateo Portola Comment
  CAS-BOT-BC126514  Salix sitchensis Lewis S. Rose 1964-3-14 64006 San Mateo Princeton 6 Comment
  CAS-BOT-BC126516  Salix sitchensis W. R. Dudley 1903-5-1 s.n. San Mateo Iverson's near Pescadero Creek Comment
  CAS-BOT-BC126517  Salix sitchensis W. R. Dudley 1900-3-17 s.n. San Mateo Below Pilar Point Comment
  CAS-BOT-BC126520  Salix sitchensis W. R. Dudley 1904-3-7 70 San Mateo Bear Gulch, Santa Cruz Mts. 213 Comment
  CAS-BOT-BC166962  Salix sitchensis Peter Rubtzoff 1976-3-28 8452 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  RSA169343  Salix sitchensis L. S. Rose 1964-3-14 64007 San Mateo Princeton. 6 Comment
  RSA185018  Salvia spathacea L. S. Rose 1965-5-3 65059 San Mateo San Bruno Mountain, Colma Canyon. 61 Comment
  RSA218031  Salvia spathacea Walter Knight, I. Knight 1965-3-15 1218 San Mateo Colma Canyon. San Bruno Mountain. Comment
  RSA176527  Sambucus mexicana John H. Thomas 1963-6-23 10171 San Mateo Jasper Ridge Biological Experimental Area, about 5 mi SW of Palo Alto. Along road at Westridge end of ridge Comment
  JROH1676  Sambucus nigra subsp. caerulea John Hunter Thomas 1989-5-9 24724 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC235074  Sambucus racemosa var. racemosa W. R. Dudley 1893-3-24 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Creek Comment
  UC204143  Sambucus racemosa var. racemosa A. D. E. Elmer June, 1903 5080 San Mateo Butano Creek Comment
  HSC21617  Sanicula arctopoides L. S. Rose 1965-3-25 65012 San Mateo San Bruno Mtns., N end 122 Comment
  JROH322  Sanicula bipinnatifida John H. Thomas 1967-5-12 12885 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH328  Sanicula crassicaulis Ynez Henderson 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  RSA667078  Sanicula crassicaulis George K. Helmkamp, E. Helmkamp 2001-6-2 6784 San Mateo Central CA coast: Purissima Crk Rd, E of Half Moon Bay at Purissima Crk, 3.2 mi E of CA-1 244 Comment
  NY406244  Sanicula serpentina A. D. E. Elmer 04 1903 4498 San Mateo Portola Comment
  UC1601284  Satureja douglasii Lewis S. Rose 1933-6-9 33220 San Mateo 3 mi w San Bruno Comment
  UCD137506  Scabiosa atropurpurea Collector Unknown 1925-6-15 s.n. San Mateo Pescadero, Santa Cruz Road. Comment
  JROH348  Scandix pecten-veneris John H. Thomas 1955-5-6 5011 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4415  Schoenoplectus acutus var. occidentalis John Hunter Thomas 1981-7-12 20698 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  RSA140622  Schoenoplectus pungens John H. Thomas 1960-6-25 8797 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. alt. below 25 feet. 8 Comment
  CAS-BOT-BC111784  Schoenoplectus pungens var. longispicatus John Hunter Thomas 1960-6-25 8797 San Mateo Redwood City. Along or near a small creek running into Redwood Slough, 7 Comment
  UC841022  Scirpus maritimus Lewis S. Rose 1935-8-13 35565 San Mateo Salada 3 Comment
  UCD141255  Scirpus microcarpus Malcolm A. Nobs; S. Galen Smith 1949-8-25 1559 San Mateo Sharp Park. Comment
  JEPS62103  Scoliopus bigelovii Inez Smith Mar. 1915 San Mateo Hillsboro Comment
  POM169941  Scoliopus bigelovii C. F. Baker 1902-3-18 322 San Mateo Kings Mountain Comment
  POM51487  Scoliopus bigelovii H. R. Ebright 1922-03 s.n. San Mateo Lake Pilarcitos. Comment
  UC1073371  Scoliopus bigelovii George B. Rossbach 1955-3-12 214 San Mateo San Mateo Creek at s.e. end Buriburi Ridge; San Mateo Creek Comment
  UC844165  Scoliopus bigelovii Mrs. H. R. Ebright March 1922 San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC519000  Scoliopus bigelovii J. H. Thomas 1949-3-29 194 San Mateo Kings Mountain Comment
  CAS-BOT-BC519003  Scoliopus bigelovii L. R. Abrams 1902-3-16 2283 San Mateo Kings Mountain Comment
  SEINET12049510  Scoliopus bigelovii L. R. Abrams 1904-1 s.n. San Mateo Bear Gulch, Sant Cruz Mountain Peninsula Comment
  SEINET13694890 Image available Scolymus hispanicus T. C. Fuller 1965-7-8 s.n. San Mateo D. McBryde prop., 140 Eleanor Dr., Woodside Comment
  JROH4126  Scrophularia californica John H. Thomas 1975-6-5 17929 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near lowflow crossing Comment
  RSA133687  Scrophularia californica John H. Thomas 1949-10-16 1153 San Mateo Along sandstone bluffs, just north of outlet of San Gregorio Creek Comment
  UCR141418  Scrophularia californica June Latting 1975-6-8 s.n. San Mateo Central Coast, slough across from Pescadero dump (on Bean Hollow Rd.), west of Pescadero 9 Comment
  POM128330  Scrophularia californica R. L. Pendleton 1907-4-20 602 San Mateo Lake Merced. 30 Comment
  RSA427185  Scrophularia californica subsp. floribunda Glenn A. Gorelick 1967-4-4 s.n. San Mateo San Bruno Mts; overlooking Daly City near San Francisco. Comment
  RSA15316  Scrophularia californica subsp. floribunda Carl B. Wolf 1927-4-3 287 San Mateo Los Troncos Creek, 2 miles back of Stanford University. Comment
  SEINET10808551  Senecio Harold W. Rickett 1928-7-10 Rickett s.n. San Mateo La Honda, CA. Comment
  CAS-BOT-BC363382  Senecio aronicoides John H. Thomas 1965-4-29 10610 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JEPS82096  Senecio aronicoides Rimo Bacigalupi with Jim Roof and L. Heckard 1961-4-24 7617 a San Mateo just e KRON television tower (on lateral ridge below and se of end of paved ridge-top, on Guadalupe Valley side of summit of San Bruno Mountain); San Bruno Mountain 304 Comment
  JROH1215  Senecio aronicoides W. R. Dudley 1894-5-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Dam Comment
  JROH1222  Senecio aronicoides John Hunter Thomas 1986-5-17 24053 San Mateo Jasper Ridge Biological Preserve, Stanford University; creek trail downstream from Rattlesnake Rock Comment
  RSA0012766  Senecio aronicoides John H. Thomas 1961-5-5 9219 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. 152 Comment
  CAS-BOT-BC363390  Senecio aronicoides Catherine A. Toschi 1963-3-17 63 :62 San Mateo East slope San Bruno Mountains below radio station 213 Comment
  CAS-BOT-BC363759  Senecio integerrimus L. Roush; G. Kimber 1918-5-7 s.n. San Mateo Sandstone Quarry Comment
  CAS-BOT-BC353468  Senecio jacobaea Peter Rubtzoff 1975-10-24 8434 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. Uppermost part of East Fork Colma Creek, at the northwest corner of Fog Forest, San Bruno Mountains. Comment
  RSA195550  Senecio mikanioides John H. Thomas 1967-2-9 12399 San Mateo San Bruno. Near intersection of Skyline Blvd. and Berkshire Dr. Comment
  CAS-BOT-BC364640  Senecio vulgaris Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. South Power Line Ridge Comment
  CAS-BOT-BC80294  Sequoia sempervirens William R. Dudley 1894-2-25 s.n. San Mateo near Summit Springs Comment
  CAS-BOT-BC80295  Sequoia sempervirens William R. Dudley 1893-2-18 s.n. San Mateo Near La Honda Comment
  POM176867  Sequoia sempervirens E. G. Dudley 1904-1-21 74 San Mateo Santa Cruz Peninsula: Canada de Raymundo, Santa Cruz Mountains 274 Comment
  MACF019653  Sequoia sempervirens Barbara Gittins 1975-11-30 San Mateo Hwy. 1, 15 mi. N. Watsonville, San Mateo County, California Comment
  CDA2436  Setaria parviflora E. L. Labadie 1958-7-8 833 -58 San Mateo Redwood City. 0 Comment
  JROH3828  Sherardia arvensis John H. Thomas 1956-4-7 5611 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD114361  Sherardia arvensis Darley F. Howe 1967-4-14 4350 San Mateo 7 miles from San Mateo on road to Half Moon Bay 121 Comment
  UCD116624  Sidalcea diploscypha Ellen Phillips 1977-4-30 9 San Mateo east of Canada College across Farmhill Boulevard. Redwood City. 304 Comment
  RSA432966  Sidalcea hickmanii subsp. hickmanii H. F. Copeland 1928-2-26 s.n. San Mateo Montara Comment
  CAS-BOT-BC205604  Sidalcea malviflora Dean Wm. Taylor 1988-3-30 9469 San Mateo Santa Cruz Mountains. San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest. Right-of-way of eastern-most set of PG&E high-voltage powerlines crossing the mountain 237 Comment
  UCR231146  Sidalcea malviflora R. F. Thorne, Percy C. Everett 1963-6-9 32221 San Mateo Central Western; San Francisco Bay area, on top of San Bruno Mountain on Kamchatka Point near the TV tower 335 Comment
  JROH2972  Sidalcea malviflora subsp. malviflora John Hunter Thomas 1981-4-21 20465 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18461  Sidalcea malviflora subsp. malviflora Carl B. Wolf 1927-6-29 547 San Mateo South of Pebble Beach near Pescadero. Comment
  UC517485  Sidalcea malviflora subsp. malviflora John Thomas Howell 1933-4-9 10974 San Mateo 2 mi n Pigeon Pt.; n of Pigeon Pt. Comment
  JEPS85233  Silene californica Roy E. Buck, Randall A. Morgan 1984-6-17 509 San Mateo ca 6 km sw Redwood City (in triangle of Edgewood Rd., Canada Rd., and Interstate 280, San Francisco Watershed Reserve); San Francisco Watershed Reserve, sw of Redwood City 152 Comment
  RSA18377  Silene californica C. B. Wolf 1927-7-1 531 San Mateo Above Emerald Lake, back of Redwood City. Comment
  UC8420  Silene californica Alice Eastwood May 1896 San Mateo Crystal Springs Comment
  UC8421  Silene californica J. Burtt Davy Jun 21 1893-Jun 23 1893 1158 San Mateo Pilarcitos Lake and Canyon Comment
  JROH1741  Silene gallica John Hunter Thomas 1987-5-5 24240 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD38220  Silene gallica Edith A. Purer 1933-7-27 5343 San Mateo Pigeon Point. Comment
  CAS-BOT-BC386851  Silene gallica Walter Knight; Irja Knight 1965-4-4 s.n. San Mateo San Bruno Mountain. Bitter Cherry Ravine. Comment
  JROH1737  Silene gallica John Hunter Thomas 1982-5-18 20930 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road along SLAC fence near low-flow crossing Comment
  POM286434  Silene gallica Lyman Benson 1931-4-26 2762 San Mateo Behind Stanford U., Brookside Park, Santa Cruz mtn range. 244 Comment
  UCSB16388  Silene gallica 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
  JEPS82259  Silene scouleri subsp. grandis Roger Raiche 1983-8-20 30637 San Mateo granite bluffs above saddle of old highway Montara Mt. ((on topomaps between San Pedro Mt. and Montara Mt.)); , between San Pedro Mt. and Montara Mt. 304 Comment
  CAS-BOT-BC389900  Silene verecunda Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountain. North side of ridge road adjacent to Buckeye Canyon Comment
  CAS-BOT-BC74985  Sinapis arvensis D. D. Davis 1903-3-1 s.n. San Mateo Unspecified. Comment
  CDA3853  Sisymbrium officinale W. Plummer 1971-7-9 San Mateo Dick Bulles property, Alpine Creek, Pescadero . 0 Comment
  CHSC39827  Sisyrinchium bellum Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  CHSC90614  Sisyrinchium bellum Diane Mastalir 1988-3-27 3 San Mateo 10 yds s of jcn hwy 92 and hwy 35. Roadside. 91 Comment
  JROH4444  Sisyrinchium bellum John Hunter Thomas 1981-4-23 20488 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3876420  Sisyrinchium bellum Lewis S. Rose 1961-4-5 61031 San Mateo San Bruno Mountains.; 0 366 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
  UC1032495  Sisyrinchium californicum H. S. Yates 1935-3-8 5218 San Mateo 2 mi sw of Pescadero 60 Comment
  UC13692  Sisyrinchium californicum Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  UC1084412  Smilacina racemosa G. Thomas Robbins 1937-4-11 110 San Mateo hillside above Redwood City Comment
  UC1134664  Smilacina racemosa N. K. Carlson 1935-7-3 119 San Mateo 3 mi s Bellvale; Santa Cruz Quadrangle Comment
  UC844176  Smilacina racemosa L. R. Abrams 1916-3-25 5585 San Mateo near Dam; Santa Cruz Mountain Peninsula, Searsville Ridge Comment
  UCR129777  Smilacina stellata var. sessilifolia C. B. Wolf 1927-4-3 00250 San Mateo Santa Cruz Mtns., 1 mile above La Honda 183 Comment
  IRVC9061  Smilacina stellata var. sessilifolia P. W. Rundel 1962-4-12 1017 A San Mateo 1 mile East of Skyline Hwy on La Honda Rd. Comment
  JEPS96897  Solanum americanum Dean W. Taylor 1988-3-30 9474 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest; right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 176 Comment
  CHSC56603  Solanum douglasii Steven Triano 1988-5-24 172 San Mateo Along se side of Old La Honda Road ca 0.5 air miles e of SkyLonda. 405 Comment
  UC905073  Solanum furcatum Peter H. Raven 1950-4-16 1773 San Mateo on the outskirts of Colma 60 Comment
  CAS-BOT-BC166662  Solanum furcatum Peter Rubtzoff 1974-12-17 7941 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  NY821395  Solanum nigrum L. Abrams 1939-6-3 425 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC58479  Solanum umbelliferum F. Hemphill 1973-5-6 747 San Mateo San Carlos. N of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC58481  Solanum umbelliferum L. Abrams 1902-1-7 2262 San Mateo King's Mountain Comment
  JROH4186  Solanum umbelliferum John H. Thomas 1958-2-15 6988 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM203826  Solanum umbelliferum L. S. Rose 1934-2-10 34024 San Mateo Woodside Canyons in hills. Comment
  CAS-BOT-BC157549  Solanum umbelliferum P. H. Raven 1950-4-16 1797 San Mateo Summit ridge, San Bruno Mts. 243 Comment
  RSA3092  Solanum umbelliferum Carl B. Wolf 1931-8-21 2334 San Mateo 0.5 mi above east base of La Honda Grade; Santa Cruz Mts. 244 Comment
  POM57020  Solidago californica C. F. Baker 1901-10-20 58 San Mateo Summit of Coast Range Comment
  POM57198  Solidago californica C. F. Baker 1902-10-1 1749 San Mateo Pillar Point. Comment
  RSA120417  Solidago californica Roxana S. Ferris 1920-9-3 2051 San Mateo Near the upper Mud Lakes, Coal Mine Ridge; Santa Cruz Mountain Peninsula. Comment
  RSA473644  Solidago californica E. A. Purer 1933-8-25 5523 San Mateo Spring Valley. Comment
  RSA34004  Solidago canadensis subsp. elongata J. Wendell Howe 1930-5-27 s.n. San Mateo Pigeon Point Road. Comment
  CAS-BOT-BC365712  Solidago spathulata Phillip C. Wheeler 1965-8-16 s.n. San Mateo San Bruno Mountain. Lower April Brook 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
  SD38299  Solidago spathulata Edith A. Purer 1932-7-18 San Mateo Comment
  CAS-BOT-BC365188  Solidago velutina subsp. californica Irja Knight; Walter Knight 1963-10-7 333 San Mateo San Bruno Mountain. Cow Trough Ravine Comment
  CAS-BOT-BC365191  Solidago velutina subsp. californica R. Bacigalupi 1941-10-30 2730 San Mateo 1/2 mi. south of junction with Belmont Road, along Crystal Springs-Woodside Road Comment
  JROH1236  Solidago velutina subsp. californica John Hunter Thomas 1989-6-17 24779 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC365932  Soliva sessilis Walter Knight; Irja Knight 1964-4-13 635 San Mateo San Bruno Mountain. North Power Line Ridge road Comment
  JROH1248  Soliva sessilis John Hunter Thomas 1984-4-12 23292 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC374491  Sonchus asper Fred Hemphill 1973-4-22 786 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH1257  Sonchus asper subsp. asper John H. Thomas 1974-8-11 17507 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC374701  Sonchus oleraceus John H. Thomas 1963-5-20 10112 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  JROH5949  Sparaxis tricolor Trevor Hebert, John Rawlings 2017-4-6 2015 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the Sand Hill Rd. fence-line northeast of the intersection of Road L and Road H 124 Comment
  UC564209  Sparganium erectum subsp. stoloniferum Ira L. Wiggins 1935-8-24 8160 San Mateo about 0.5 mi s Moss Beach Comment
Read comments
Mar 12 2009
  JROH5850  Spartium junceum Diane Renshaw 2014-2-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek Delta of Searsville Lake. Comment
  JROH1756  Spergularia John Hunter Thomas 1978-4-25 19155 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1750  Spergularia bocconi John H. Thomas 1967-5-12 12891 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET1877518 Image available Spergularia bocconi Tom Hensel 1973-7-10 278 -A San Mateo Pigeon Point lighthouse, 8.5 mi N of San Mateo-Santa Cruz Co. line. Comment
  RSA23193  Spergularia macrotheca I. L. Wiggins 1938-7-9 8932 San Mateo Pigeon Point light house. Comment
  CAS-BOT-BC390476  Spergularia macrotheca var. macrotheca Alice Eastwood 1937-7-25 18889 San Mateo Pebble Beach, Pescadero Comment
  CAS-BOT-BC390477  Spergularia macrotheca var. macrotheca Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  CAS-BOT-BC390459  Spergularia macrotheca var. macrotheca G. B. Rossbach; R. P. Rossbach 1937-10-1 615 San Mateo Near Burlingame Comment
  CAS-BOT-BC390474  Spergularia macrotheca var. macrotheca G. B. Rossbach; R. P. Rossbach 1937-11-25 609 San Mateo 3 mi. south of Half Moon Bay Comment
  CAS-BOT-BC390921  Spergularia marina Javier Penalosa 1963-3-30 2768 San Mateo San Bruno Mountain. Guadalupe Valley 30 Comment
  CAS-BOT-BC173613  Spiranthes romanzoffiana Peter Rubtzoff 1978-8-17 9258 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC534887  Spirodela polyrhiza Roxana S. Ferris 1920-10-1 2101 San Mateo Mud Lakes, Coalmine Ridge Comment
  SJSU15219  Stachys ajugoides Toni Corelli 2011-5-21 701 San Mateo Ano Nuevo State Park, Cascade Field 12 Comment
  RSA446594  Stachys ajugoides E. A. Purer 1933-8-13 5425 San Mateo Santa Clara Valley, near Belmont. Comment
  JEPS34472  Stachys ajugoides var. rigida L. R. Heckard, and R. Bacigalupi 1963-7-2 1361 San Mateo trail to Montara Peak (nw slope) (above old county road); Montara Peak 304 Comment
  UC635184  Stachys ajugoides var. rigida Herbert L. Mason 1927-4-24 3700 San Mateo mouth San Gregorio Creek Comment
  CDA41030  Stachys albens Wm. Davis 1964-6-29 s.n. San Mateo Brown prop., San Bruno. 0 Comment
  JROH2901  Stachys bullata John Hunter Thomas 1977-6-16 18793 San Mateo Jasper Ridge Biological Preserve, Stanford University; along raised causeway Comment
  POM204318  Stachys bullata I. L. Wiggins 1929-7-4 3783 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  UC306580  Stachys bullata A. D. E. Elmer June, 1903 4417 San Mateo San Mateo Comment
  SEINET12343829  Stachys bullata L. S. Rose 1932-5-3 32215 San Mateo San Bruno 183 Comment
  UC306579  Stachys pycnantha A. D. E. Elmer June, 1903 4261 San Mateo Alpine School House Comment
  RSA0109084  Stachys pycnantha A. D. E. Elmer 1903-06 s.n. San Mateo Alpine School House. Comment
  NY415795  Stachys quercetorum A. A. Heller 1907-5-28 8577 San Mateo Above Crystal Springs on the Half Moon Bay road Comment
  UCSB16391  Stachys rigida Schulte, John 1963-4-13 San Mateo Jasper Ridge; 3 mi SW of Stanford Campus; betweeen Santa Clara Valley and main front of Santa Cruz Mountains 137 Comment
  JEPS121450  Stachys rigida subsp. quercetorum Adam C. Schneider 2013-5-17 125 San Mateo Crystal Springs Reservoir Comment
  CAS-BOT-BC164654  Stachys rigida subsp. quercetorum Peter Rubtzoff; Elizabeth McClintock; Barbara Deutsch 1978-6-4 9202 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH2893  Stachys rigida var. quercetorum John H. Thomas 1974-4-19 17158 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Escobar gate Comment
  NY380638  Stachys viarum A. A. Heller 1907-5-28 8581 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  JROH1783  Stellaria media John Hunter Thomas 1978-4-20 19073 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1777  Stellaria media J. H. Thomas 1963-2-21 10021 San Mateo Jasper Ridge Biological Preserve, Stanford University; along old road at Westridge end of ridge Comment
  CAS-BOT-BC398986  Stellaria nitens Elizabeth McClintock 1965-4-25 s.n. San Mateo Power Line Ridge 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
  SD175782  Stipa tenuissima L. Kuwahara 2006-6-1 1359399 San Mateo East side of Skyline Blvd., 0.75 mile south of State Highway 92. 359 Comment
  UCR182946A  Stipa tenuissima L. Kuwahara 2006-6-1 PDR- 1359399 San Mateo east side of Skyline Blvd., 3/4 mile south of State Hwy 92 360 Comment
  POM296440  Stuckenia pectinata Lyman Benson 1932-6-29 3750 San Mateo Lake Searsville, Santa Cruz Mt. range, San Francisco Bay watershed. 152 Comment
  CAS-BOT-BC423015  Stylomecon heterophylla Walter Knight; Irja Knight 1965-3-27 1017 San Mateo San Bruno Mountain. Devil's Gulch. Comment
  CAS-BOT-BC271642  Symphoricarpos albus var. laevigatus W. R. Dudley 1901-5-4 s.n. San Mateo Coal Mine Canyon near head Los Trancos Creek, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC271639  Symphoricarpos albus var. laevigatus Deborah Hichborn 1920-5-17 s.n. San Mateo Ridge above Searsville Lake, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC237060  Symphoricarpos mollis Ned Cahill 1974-5-13 274 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 mi. westward from Redwood City Comment
  RSA152231  Symphoricarpos mollis I. L. Wiggins 1925-04 1651 San Mateo On Kings Mtn Rd 3/4 mile above Woodside. Comment
  SJSU14728  Symphoricarpos orbiculatus C. W. Sharsmith 1991-12-14 9230 San Mateo Yerba Buena Nursery, Woodside Comment
  CAS-BOT-BC99055  Symphyotrichum chilense Peter H. Raven 1957-9-1 11294 San Mateo 1.1. mi. s. of Pigeon Point Lighthouse Comment
  OBI2758  Symphyotrichum chilense Lewis S. Rose 1966-8-15 66083 San Mateo Pillar Point 2 Comment
  UC87085  Symphyotrichum chilense C. F. Baker 1902-9-2 1550 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC99054  Symphyotrichum chilense Alice Eastwood; John Thomas Howell Apr. 24, 1938. 5253 San Mateo Tunitas Comment
  CAS-BOT-BC99094  Symphyotrichum chilense W. R. Dudley 1899-11-29 s.n. San Mateo Near Alpine School House, Black Mt. - Santa Cruz Peninsula Comment
  CAS-BOT-BC99095  Symphyotrichum chilense W. R. Dudley 1897-10-10 s.n. San Mateo Near Pilar Point Comment
  OBI59917  Symphyotrichum chilense David J. Keil 1988-11-19 21201 San Mateo Highway 1, south of Half Moon Bay Comment
  CAS-BOT-BC99389  Symphyotrichum subspicatum E. H. Quayle 1920-5-18 242 San Mateo Half Moon Bay, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC376710  Tanacetum bipinnatum Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road 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
  JROH3001  Taraxia ovata John H. Thomas 1971-4-10 15761 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC375428  Taraxia ovata R. L. Pendleton 1909-4-3 1342 San Mateo along creek 4 mi back of Stanford University; Los Tronchos Creek 144 Comment
  UC874110  Taraxia ovata Lewis S. Rose 1941-4-15 41137 San Mateo hills w Millbrae 91 Comment
  JROH2998  Taraxia ovata W. R. Dudley 1894-3-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; canada above Searsville Reservoir Comment
  JROH368  Tauschia hartwegii John H. Thomas 1973-3-12 16488 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC447479  Tellima grandiflora Margaret A. Barry 1938-5-29 261 San Mateo Corte Madera Creek near Coal Mine Ridge Comment
  CAS-BOT-BC447475  Tellima grandiflora John H. Thomas 1967-5-7 12836 San Mateo Near intersections of Bean Hollow and Pescadero roads, about 1/2 mile westward from Pescadero 91 Comment
  SEINET11261330  Tetragonia tetragonoides Kaye H. Thorne, J. Chandler 1986-7-25 4915 San Mateo Half Moon Bay, 2 mi S of Moss Beach at Dune Beach. Sand dunes and beach area adjacent to the Pacific Ocean.; 0 Comment
  JROH3508  Thalictrum fendleri var. polycarpum John H. Thomas 1961-4-29 9196 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3514  Thalictrum fendleri var. polycarpum John Hunter Thomas 1988-4-7 24381 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near dam Comment
  CAS-BOT-BC399847  Thalictrum polycarpum Peter Rubtzoff 1953-5-14 1350 B San Mateo Pilarcitos Creek Canyon 1 to 2 miles downstream from Pilarcitos Lake Comment
  CAS-BOT-BC399844  Thalictrum polycarpum W. R. Dudley 1904-4-10 s.n. San Mateo Santa Cruz Mountain Peninsula. Alpine Road, Black Mt. Comment
  CAS-BOT-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-BC66667  Thysanocarpus curvipes John H. Thomas 1972-4-1 16044 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66678  Thysanocarpus curvipes Alice Eastwood 1914-3-12 s.n. San Mateo San Bruno Hills. Comment
  CAS-BOT-BC447581  Tiarella trifoliata var. unifoliata L. R. Abrams 1907-8-26 s.n. San Mateo Spring near King's 762 Comment
  JROH407  Torilis nodosa John Hunter Thomas 1992-5-14 25224 San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat ramp Comment
  RSA45321  Torreya californica I. L. Wiggins 1945-5-5 11161 San Mateo Along La Honda Creek about 1 mile above La Honda 152 Comment
  JROH184  Toxicodendron diversilobum John H. Thomas 1974-4-6 17091 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176598  Toxicodendron diversilobum John H. Thomas 1964-4-4 10295 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto; towards Searsville end of ridge 152 Comment
  SJSU10559  Toxicoscordion fremontii W. J. Cervenka 1962-2-2 San Mateo S end of Portofino Dr, San Carlos Comment
  UCD139831  Toxicoscordion fremontii Ogden C. Riddle 1941-4-6 67 San Mateo Finney Ridge, near Half Moon Bay. 243 Comment
  JEPS125912  Toxicoscordion fremontii var. minor Dean W. Taylor 2002-3-20 17953 San Mateo Franklin Point, coastal bluff, about 1 mile SE along the coast from actual point. Comment
  CHSC42204  Trientalis latifolia Rusti Gammon 1986-3-30 12 San Mateo Ca. 8.1 mi sw of Saratoga, 4.1 mi w off hwy 9. 569 Comment
  CHSC56576  Trientalis latifolia Steven Triano 1988-5-24 166 San Mateo Ca 0.1 mi w of Old La Honda Road near Martin Creek and 0.4 air miles e of SkyLonda. 381 Comment
  JROH3391  Trientalis latifolia John H. Thomas 1973-5-5 16764 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM287405  Trientalis latifolia Lyman Benson 1928-4-21 s.n. San Mateo Stanford University, Mt. Range: Santa Cruz; River: San Francisquito Creek. 91 Comment
  JROH2227  Trifolium albopurpureum John Hunter Thomas 1980-4-10 19868 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA178681  Trifolium albopurpureum John H. Thomas 1964-4-19 10319 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Near Searsville Lake. Comment
  UCR66503  Trifolium albopurpureum L. S. Rose 1933-5-17 33172 San Mateo Redwood City 6 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
  UC16490  Trifolium albopurpureum var. dichotomum Alice Eastwood May 1896 San Mateo Crystal Springs Comment
  UC165515  Trifolium albopurpureum var. dichotomum J. Burtt Davy 1893-6-22 836 San Mateo Lake Pilarcitos Comment
  SJSU660  Trifolium amplectens var. stenophyllum A. W. Jacobs 1941-4-20 San Mateo Jasper Ridge above Searsville L Comment
  UC311113  Trifolium barbigerum A. D. E. Elmer Apr, 1903 4859 San Mateo Lake San Andreas Comment
  UCD107892  Trifolium bifidum Michael A. Vincent; Ethan H. Freid 1998-4-9 8201 San Mateo East side of Canada Road, ca. 200 yards southeast of its junction with Edgewood Road, just southwest of I-280, at Filoli Center. Comment
  JEPS127847  Trifolium bifidum var. bifidum Adam C. Schneider with C. Matt Guilliams 2013-4-7 85 San Mateo Comment
  JROH2252  Trifolium bifidum var. decipiens John H. Thomas 1964-4-19 10317 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville end of ridge Comment
  RSA6273  Trifolium ciliolatum D. D. Keck 1932-6-1 1792 San Mateo Above Woodside on the La Honda road, east slope of the Santa Cruz Mountains 305 Comment
  JROH2259  Trifolium depauperatum var. amplectens John H. Thomas 1974-4-19 17160 San Mateo Jasper Ridge Biological Preserve, Stanford University; near area H Comment
  JROH2273  Trifolium depauperatum var. truncatum John H. Thomas 1974-4-25 17205 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge Comment
  JROH2268  Trifolium depauperatum var. truncatum Sara Thompson 1958-4-12 13 San Mateo Jasper Ridge Biological Preserve, Stanford University; top of Jasper Ridge, near old exclosure Comment
  CHSC39833  Trifolium fucatum Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  JROH2287  Trifolium fucatum John H. Thomas 1958-5-10 7148 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2291  Trifolium fucatum John H. Thomas 1974-4-25 17204 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge Comment
  UC137797  Trifolium fucatum C. F. Baker 1902-5-1 693 San Mateo Belmont Comment
  UCSB7299  Trifolium fucatum Walker, Clifford 1954-4-20 San Mateo 50 yds. from ocean, 1 mi. S of Half Moon Bay Comment
  RSA40291  Trifolium fucatum var. fucatum L. S. Rose 1948-5-9 48109 San Mateo West of Burlingame. 122 Comment
  JROH2329  Trifolium hirtum John Hunter Thomas 1986-6-3 24077 San Mateo Jasper Ridge Biological Preserve, Stanford University; old beach Comment
  JROH2330  Trifolium hirtum John Hunter Thomas 1988-6-2 24498 San Mateo Jasper Ridge Biological Preserve, Stanford University; beach 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
  SJSU15443  Trifolium macraei Toni Corelli 2010-5-13 601 San Mateo Pedro Point Headlands, Pacifica, CA, along South Ridge Trail 180 Comment
  SJSU15436  Trifolium microdon Toni Corelli 2010-5-13 619 San Mateo Pedro Point Headlands, Pacifica, CA, along South Ridge Trail 180 Comment
  UCSC006059  Trifolium oliganthum Randall Morgan 1996-5-24 2972 San Mateo Pescadero Creek Comment
  JROH2344  Trifolium repens John H. Thomas 1974-10-29 17645 San Mateo Jasper Ridge Biological Preserve, Stanford University; small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  JROH2365  Trifolium subterraneum John Hunter Thomas 1988-6-2 24500 San Mateo Jasper Ridge Biological Preserve, Stanford University; beach Comment
  JROH2357  Trifolium subterraneum John Hunter Thomas 1986-4-22 23974 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD78150  Trifolium tomentosum Robert E. Preston 2008-4-2 2602 San Mateo 1.1 mi SE of San Andreas Reservoir, at jct two dirt roads 107 Comment
  JROH2376  Trifolium variegatum John H. Thomas 1957-4-16 6650 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2382  Trifolium variegatum John H. Thomas 1973-4-14 16569 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA205198  Trifolium variegatum LeRoy Abrams; 1914-4-2 5077 San Mateo Menlo Heights Comment
  UC165589  Trifolium variegatum var. melananthum J. Burtt Davy 1895-1 1027 San Mateo Pilarcitos Comment
  RSA0084064  Trifolium variegatum var. melananthum Lyman D. Benson 1930-5-1 2062 San Mateo Stanford University. 107 Comment
  RSA6422  Trifolium variegatum var. melananthum D. D. Keck 1434 San Mateo Burlingame 2 Comment
  JROH2404  Trifolium willdenovii John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2408  Trifolium willdenovii John Hunter Thomas 1984-5-3 23332 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10862681  Trifolium willdenovii Robert V. Bradshaw 1922-4-10 Bradshaw 2548 San Mateo Jasper Ridge Comment
  JEPS66103  Trifolium wormskioldii William S. Cooper 1919-7-22 205 San Mateo Ano Nuevo Pt Comment
  SJSU15439  Trillium chloropetalum Toni Corelli 2009-3-10 426 San Mateo Gazos Creek Road, San Mateo Coast Comment
  CDA39377  Trillium chloropetalum A. C. Browne 1950-3-27 72 San Mateo Jasper Ridge. 0 Comment
  JROH4723  Trillium chloropetalum John H. Thomas 1969-4-12 14892 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC74960  Trillium chloropetalum unknown 1902-3-9 307 San Mateo hills near Stanford University Comment
  CAS-BOT-BC521071  Trillium chloropetalum var. giganteum 1922-3-27 s.n. San Mateo Pescadero Creek Comment
  SEINET12044480  Trillium chloropetalum var. giganteum H. R. Davis 1920-1 s.n. San Mateo Santa Cruz Mountain Peninsula, near Searsville Lake Comment
  CAS-BOT-BC133435  Trillium ovatum John Thomas Howell 1924-2-23 267 San Mateo King Mountain Comment
  CAS-BOT-BC133442  Trillium ovatum Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  RSA407377  Trillium ovatum Lyman Benson 1930-5-3 2109 San Mateo Woods, above Woodside, Santa Cruz Mtns. 366 Comment
  CAS-BOT-BC238565  Triphysaria floribunda David D. Keck 1932-5-6 1490 San Mateo Four miles west of Burlingame, on the Skyline Blvd. Comment
  CAS-BOT-BC238573  Triphysaria floribunda A. D. E. Elmer 1903-4-1 4522 San Mateo South San Francisco Comment
  JEPS4532  Triphysaria floribunda R. F. Hoover 1939-4-21 4057 San Mateo 2 mi s Colma Comment
  JEPS47716  Triphysaria floribunda Walter Knight and Irja Knight 1965-4-24 1054 San Mateo eastern end San Bruno Mountain; Point San Bruno, eastern end of San Bruno Mountain Comment
  UC311192  Triphysaria floribunda A. D. E. Elmer April, 1903 4522 San Mateo South San Francisco Comment
  UC75150  Triphysaria floribunda C. F. Baker 1902-3-22 346 San Mateo South San Francisco Comment
  UCR139346  Triphysaria floribunda David D. Keck 1932-5-6 1471 San Mateo San Francisco Bay Region, 1 mi south of San Mateo on Highway US 101 61 Comment
  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
  JROH4139  Triphysaria pusilla John H. Thomas 1974-4-13 17154 San Mateo Jasper Ridge Biological Preserve, Stanford University; Westridge end of ridge Comment
  JEPS17983  Triphysaria versicolor subsp. versicolor George B. Rossbach 1955-5-29 482 San Mateo Ano Nuevo Point; sw San Mateo County Comment
  SJSU16036  Triphysaria versicolor subsp. versicolor Toni Corelli, John Rawlings 2016-4-29 1767 San Mateo Along Atkinson Bluff Trail and throughout Cascade Field, north of Cascade Cr. Trail, in Ano Nuevo State Park 11 Comment
  JROH5466  Trisetum canescens John H. Thomas 1967-5-12 12869 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR101614  Triteleia George K. Helmkamp, E. A. Helmkamp 1998-5-16 3751 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  JROH4741  Triteleia hyacinthina John Hunter Thomas 1981-4-30 20519 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD39086  Triteleia hyacinthina Marie Cummings 1933-5-10 96 San Mateo Portola Road. Comment
  SEINET12044735  Triteleia ixioides P. R. Hichborn 1921-1 231 San Mateo Santa Cruz Mountain peninsula Comment
  CAS-BOT-BC526102  Triteleia ixioides subsp. ixioides Josephine D. Randall 1907-6-8 233 San Mateo Santa Cruz Peninsula, Portola Valley Comment
  JROH4750  Triteleia laxa John H. Thomas 1974-5-29 17400 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC526360  Triteleia laxa H. L. Dale 1920-6-1 s.n. San Mateo Back of Menlo Park Comment
  JEPS54258  Tropidocarpum gracile R. J. S. 1908-3-25 San Mateo Los Buellas hills Mt. Hamilton Range Comment
  UCD94642  Typha angustifolia H. A. Borthwick 1925-6-15 1965 San Mateo Mud Lake, Stanford. Comment
  JROH5578  Typha latifolia John Rawlings 2012-7-9 1202 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near upper lake (west of Portola Rd.) adjacent to power line right-of-way. 106 Comment
  JROH5538  Typha latifolia John Hunter Thomas 1982-11-6 21202 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta along edge of Searsville Lake Comment
  CAS-BOT-BC213097  Ulex europaeus J. H. Thomas 1960-11-11 8924 San Mateo Along Skyline Drive about 0.2 mi. N. of Pulgas water temple. 91 Comment
  RSA625696  Ulex europaeus Don Pendleton 1993-11-20 s.n. San Mateo Daly City at 222 Hickey Boulevard Comment
  SJSU2918  Ulex europaeus L. J. Hoffman 1963-1-3 124 San Mateo Mt San Bruno off Crocker Ave, Daly City Comment
  JROH4222  Ulmus minor John Hunter Thomas 1987-4-30 24214 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC91228  Umbellularia californica C. F. Leithold 1901-1-19 s.n. San Mateo Santa Cruz Mountain Peninsula. Coal Mine Canyon near Black Mountain. Comment
  JEPS40102  Umbellularia californica W. L. Jepson 1922-3-19 9541 San Mateo Millbrae 182 Comment
  JROH135  Umbellularia californica John H. Thomas 1959-8-22 8081 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH142  Umbellularia californica John Hunter Thomas 1981-12-21 20792 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM272291  Umbellularia californica Lyman Benson 1929-3-4 984 San Mateo Hill east of Lake Searsville. Comment
  JROH1289  Uropappus lindleyi John H. Thomas 1974-4-24 17186 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC382765  Uropappus lindleyi George Oberlander 1949-7-10 714 San Mateo San Francisco Watershed Reserve. Near Skyline Blvd. Comment
  UCD111539  Urtica dioica subsp. gracilis G. K. Helmkamp; E. A. Helmkamp 2001-6-2 6780 San Mateo Central CA coast: Purissima Crk Road, E of Half Moon Bay at Purissima Crk, 3.2 miles E of CA-1. 243 Comment
  JROH4236  Urtica dioica subsp. holosericea John H. Thomas 1964-10-2 10512 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam along stream Comment
  RSA746034  Vaccinium cespitosum Gary D. Wallace 1975-11-29 1515 San Mateo San Bruno Mtn., e. of parking lot at top of Radio Rd. 396 Comment
  CAS-BOT-BC199351  Vaccinium ovatum Elmer I. Applegate 1895-3-9 307 San Mateo Summit Springs, Santa Cruz Mountains, road to La Honda Comment
  RSA681684  Vaccinium ovatum Annuschka Deb 1989-3-31 63 San Mateo Woodside. Comment
  SD38450  Vaccinium ovatum Edith A. Purer 1933-5-24 3642 San Mateo Skyline Boulevard. Comment
  UC571033  Vaccinium ovatum Herbert L. Mason 1927-4-23 3671 San Mateo La Honda Comment
  RSA0074198  Vaccinium ovatum K. Hoppough 1929-5-8 3027 San Mateo King's Mountain. Comment
  JEPS90930  Vaccinium ovatum var. ovatum Dean W. Taylor 1988-4-29 9587 San Mateo n slope of San Bruno Mountain 0.3 mi n(22d)w of summit, summit of small hill (local botaniceal placename of Kamchatka Point), Santa Cruz Mountains San Bruno Mountain; Santa Cruz Mountains, San Bruno Mountain 371 Comment
  JEPS100467  Vaccinium parvifolium Dean W. Taylor 1988-4-29 9586 San Mateo San Bruno Mountain, northern slope of mountain 0.3 miles N22d W of summit, 371 Comment
  SEINET3293271 Image available Vancouveria hexandra Lewis S. Rose 1932-5-24 32269 San Mateo Kings mountain, forest Comment
  UC1206448  Vancouveria planipetala W. R. Dudley 1895-6-6 San Mateo near Peters Creek (this side of Iverson's); Santa Cruz Peninsula, near Peters Creek Comment
  UC1537693  Verbena lasiostachys Gordon H. True Jr. 1936-6-14 500 San Mateo canyon s of Salada Beach 152 Comment
  JROH4257  Verbena lasiostachys var. lasiostachys John H. Thomas 1962-5-31 9895 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oak woodland near Westridge end of ridge Comment
  JROH4270  Verbena lasiostachys var. lasiostachys John Hunter Thomas 1990-7-4 24874 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC5096  Verbena prostrata L. R. Abrams 1914-6-2 5109 San Mateo unspecified Comment
  POM283784  Veronica peregrina var. xalapensis Lyman D. Benson 1930-5-21 2143 San Mateo Lake Searsville. 152 Comment
  CDA6415  Veronica persica Wm. Davis 1958-1-13 20 -58 San Mateo Half Moon Bay. 0 Comment
  JROH4153  Veronica persica John H. Thomas 1969-4-12 14889 San Mateo Jasper Ridge Biological Preserve, Stanford University; picnic area below dam Comment
  RSA397971  Vicia benghalensis E. A. Purer 1932-7-16 15925 San Mateo Near Pigeon Point Comment
  SJSU15216  Vicia benghalensis Toni Corelli 2010-5-4 624 b San Mateo Ano Nuevo State Park, Cascade Field, Cascade Creek Trail 25 Comment
  CHSC23153  Vicia gigantea Robert A. Schlising 1963-2-23 2435 San Mateo Coast Range. 21 miles north of Davenport, along Highway 1. Comment
  UCR130219  Vicia gigantea George K. Helmkamp, E. A. Helmkamp 1999-6-28 4999 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  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
  JROH2433  Vicia sativa subsp. nigra John H. Thomas 1965-4-10 10559 San Mateo Jasper Ridge Biological Preserve, Stanford University; near west end of Searsville Dam Comment
  JROH2445  Vicia sativa subsp. sativa John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5883  Vinca major J. C. Gaither Jr. 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Whiskey Hill Gate. Comment
  HSC23975  Viola glabella Mary Katherine Wicksten 1971-7-8 163 San Mateo Huddart Park, Squeeler Creek Comment
  JEPS50384  Viola glabella James G. Davy 1934-1 226 San Mateo Watershed of San Gregorio Creek; Santa Cruz Mountains, La Honda, Watershed of San Gregorio Cr Comment
  RSA15278  Viola glabella Carl B. Wolf 1927-4-3 244 San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  SEINET9251817  Viola glabella R. L. Oliver 1976-4-18 s.n. San Mateo La Honda, along HWY 84. Comment
  POM134804  Viola ocellata C. F. Baker 1902-3-18 333 San Mateo King's Mountain Comment
  RSA120705  Viola ocellata S. S. Tillett, I. Sternback 1956-6-24 527 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  SD38904  Viola ocellata Edith A. Purer 1933-4-25 3645 San Mateo King's Mountain Road Comment
  UCR64473&nbs