Search Results — 2000 specimen records retrieved (1354 records with coordinates)
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Results for search: County=SAN MATEO; Source=All;   

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

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC177927  Abelia X grandiflora Harriet A. Walker 1914-8-24 3650 San Mateo Cultivated at Hillsborough Comment
  SD17519  Abronia latifolia Edith Purer 1933-7-27 5381 San Mateo Two Miles south of Pigeon Point Comment
  SEINET946036  Abronia latifolia C. F. Baker 1902-1 1741 San Mateo Piller Point. Comment
Read comments
Dec 21 2013
  RSA0025756  Abronia latifolia H. A. Barker 1927-5-14 667 San Mateo North of Half Moon Bay. Comment
  SJSU948  Acacia longifolia C. P. Hoyt 1948-2-28 San Mateo residence, San Mateo Comment
  CAS-BOT-BC451134  Acaena pinnatifida var. californica Dr. E. L. Greene 1902-5-1 688 San Mateo Crystal Springs Lake; Pacific Coast Comment
  JEPS15238  Acaena pinnatifida var. californica Rimo Bacigalupi with G. T. Robbins, L. T. Dempster and S. Galen Smith 1956-5-15 5644 San Mateo near summit of first range of hills due w. San Bruno (ca. 1/4 mi. e. of Skyline Blvd.) 137 Comment
  SD27820  Acaena pinnatifida var. californica Carl B. Wolf 1929-5-25 3732 San Mateo Pebble Beach, south of Pescadero Comment
  UC764000  Acaena pinnatifida var. californica R. F. Hoover 1939-4-21 4053 San Mateo 2 mi. s. Colma Comment
  CAS-BOT-BC219599  Acanthomintha duttonii A. D. E. Elmer 1903-5-1 4538 San Mateo Crystal Springs Lake Comment
  LA55133  Acanthomintha ilicifolia Harry A. Dutton; Harriet A. Walker 1915-5-29 3819 San Mateo near the Menlo Golf Club Comment
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Jul 30 2017
  SEINET12276583  Acanthomintha ilicifolia L. S. Rose 1932-1 San Mateo Comment
  RSA18365  Acanthomintha obovata subsp. duttonii Carl B. Wolf 1929-5-24 3723 San Mateo upper Emeral Lake, Back of Redwood City Comment
  CAS-BOT-BC333208  Acer macrophyllum Elizabeth McClintock; Paul Reeberg 1988-4-6 s.n. San Mateo San Bruno Mountains. Above Margaret Ave., Brisbane Comment
  CAS-BOT-BC333291  Acer macrophyllum A. D. E. Elmer 1903-5-1 4509 San Mateo Portola Comment
  CAS-BOT-BC384623  Acer macrophyllum Mary K. Wicksten 1972-3-24 s.n. San Mateo Squealer Creek, Huddart Park Comment
  JROH159  Acer macrophyllum John H. Thomas 1975-6-5 17948 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Searsville Dam 91 Comment
  RSA131268  Acer macrophyllum Josephine Randall 1906-03 s.n. San Mateo San Francisquito Creek near Stanford University Comment
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Sep 18 2013
  CAS-BOT-BC333289  Acer macrophyllum W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Peter's Creek Bridge, Iversons Comment
  JROH166  Acer negundo John H. Thomas 1959-4-5 7669 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD117084  Acer negundo C. F. Baker 1902-5-15 472 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC21588  Achillea millefolium Fred Hemphill 1973-4-22 696 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC28767  Achillea millefolium H. M. Hall 1923-10-26 847 -C San Mateo Collected live in Montara, planted in Stanford Gardens and later vouchered from there. 0 Comment
  JROH447  Achillea millefolium John Hunter Thomas 1980-5-8 19954 San Mateo Jasper Ridge Biological Preserve, Stanford University 124 Comment
  UC1084379  Achillea millefolium G. Thomas Robbins 1937-4-11 76 San Mateo south of, along Skyline Blvd. San Francisco Comment
  CAS-BOT-BC29102  Achyrachaena mollis Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  JROH2057  Acmispon americanus var. americanus D. E. Breedlove 1971-5-31 19343 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH2060  Acmispon americanus var. americanus John Hunter Thomas 1977-6-16 18755 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  UCD103906  Acmispon americanus var. americanus Lewis S. Rose 1964-9-5 64071 San Mateo Emerald Lake, w of Redwood City. 243 Comment
  JROH2069  Acmispon glaber var. glaber John H. Thomas 1970-7-5 15662 San Mateo Jasper Ridge Biological Preserve, Stanford University 152 Comment
  JROH2070  Acmispon glaber var. glaber D. E. Breedlove 1971-5-31 19376 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake 125 Comment
  JROH2079  Acmispon strigosus John H. Thomas 1975-4-18 17787 a San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2084  Acmispon wrangelianus John H. Thomas 1955-5-6 4991 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2092  Acmispon wrangelianus John H. Thomas 1966-4-21 11563 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2093  Acmispon wrangelianus John H. Thomas 1966-4-24 11578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD37804  Acmispon wrangelianus Janet Turner 1933-4-18 3675 San Mateo Emerald Lake. Comment
  JROH2088  Acmispon wrangelianus Duncan M. Porter 1960-4-22 660 A San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch. Quadrat H-4 Comment
  POM204319  Adenocaulon bicolor I. L. Wiggins 1929-7-4 3773 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  POM56205  Adenocaulon bicolor A. D. E. Elmer 1903-06 s.n. San Mateo Pescadero Creek Comment
  CAS-BOT-BC139953  Adenostoma fasciculatum Ned Cahill 1974-5-13 260 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  UCR139358  Adenostoma fasciculatum David D. Keck 1932-5-25 1781 San Mateo San Francisco Bay Region, hills two miles west of Belmont 168 Comment
  RSA18438  Adenostoma fasciculatum var. fasciculatum Carl B. Wolf 1927-6-29 570 San Mateo Near La Honda, Santa Cruz Mts. Comment
  CAS-BOT-BC202670  Aesculus californica George Oberlander 1949-5-21 190 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  JROH2710  Aesculus californica John H. Thomas 1975-6-5 17946 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oakwoodland below Searsville Dam. 86 Comment
  SEINET12232132  Aesculus californica Unknown 1933-1 126 San Mateo Toward Woodside Comment
  UCSB17806  Aesculus californica Schulte, John 1963-4-26 San Mateo Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and Santa Cruz Mountains 137 Comment
  UC29378  Agoseris grandiflora var. grandiflora J. Burtt Davy Jun 21 1893-Jun 23 1893 1126 San Mateo Pilarcitos Lake and Canon Pilarcitos Lake and Canon Comment
  CAS-BOT-BC46126  Agoseris heterophylla Ned Cahill 1974-4-29 195 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH486  Agoseris heterophylla S. J. McNaughton 1966-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Ehrlich's Area H Comment
  JROH487  Agoseris heterophylla Arthur Spiegler 1952-4-12 4 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  CAS-BOT-BC15241  Agoseris hirsuta Elizabeth McClintock 1972-4-23 s.n. San Mateo San Bruno Mountain, above Fern Rock Comment
  CAS-BOT-BC127481  Agrostis capillaris John Thomas Howell 1975-9-25 51509 San Mateo San Bruno Mountain. Comment
  JROH5601  Agrostis capillaris John Rawlings 2013-6-26 1204 San Mateo Jasper Ridge Biological Preserve, Stanford University. A few meters from the semaphore grass vernal depression west of Rd. C 121 Comment
  UC1153947  Agrostis densiflora Beecher Crampton 1957-6-9 4166 San Mateo along State Hwy 1 ca 5-6 mi s San Francisco (bluffs above sea) Comment
  UCD52025  Agrostis densiflora Beecher Crampton 1957-6-9 4166 San Mateo State Hwy. 1, 5 miles south of San Francisco. Comment
  CAS-BOT-BC127379  Agrostis exarata A. G. Vestal 1937-6-15 s.n. San Mateo Pebble Beach near Pescadero. Comment
  JROH4786  Agrostis exarata John Rawlings 2004-7-23 1042 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 12, south of first footbridge 124 Comment
  UC1537361  Agrostis exarata Gordon H. True Jr. 1937-10-16 849 San Mateo near Thornton Beach 15 Comment
  JROH4793  Agrostis hallii John Rawlings 2011-6-12 1075 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 4 downhill edge. 174 Comment
  JEPS101122  Aira caryophyllea Dean W. Taylor 1991-5-20 11787 San Mateo coastal bluffs near south bank of Pescadero Creek at Highway 1 9 Comment
  JROH4834  Aira caryophyllea W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9 Comment
  JROH4836  Aira caryophyllea John Rawlings 2013-4-19 1152 San Mateo Jasper Ridge Biological Preserve, Stanford University. Mossy verge of Trail 11 through chaparral. 144 Comment
  JROH5641  Aira caryophyllea John Rawlings 2014-6-2 1253 San Mateo Jasper Ridge Biological Preserve, Stanford University; Red Hot Poker Meadow north of Bear Creek and ~ 50 meters east of the Sand Hill Rd. fenceline 102 Comment
  RSA159442  Aira caryophyllea John H. Thomas 1961-5-23 9455 San Mateo Portola State Park, near junction of Peters and Pescadero Creeks. 152 Comment
  UC1108514  Aira caryophyllea H. L. Mason 1921-5-29 San Mateo roadside near Arroyo de los Frijoles Comment
  CAS-BOT-BC138238  Aira caryophyllea var. caryophyllea John H. Thomas 1965-4-29 10614 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  SJSU1085  Allium dichlamydeum C. W. Sharsmith 1951-4-6 5822 San Mateo Woodside Hills, 3 mi W of Woodside 182 Comment
  CAS-BOT-BC467291  Allium dichlamydeum Walter Knight; Irja Knight 1964-5-30 603 San Mateo North facing slope, Colma Canyon Comment
  JROH4548  Allium falcifolium H. L. Mason 1921-5-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC843252  Allium falcifolium Lewis S. Rose 1935-4-16 35095 San Mateo w Redwood City; Emerald Lake Comment
  CAS-BOT-BC469035  Allium falcifolium Ira L. Wiggins 1949-4-23 12049 San Mateo Near Emerald Lakes, west of Redwood City. Comment
  CAS-BOT-BC471100  Allium lacunosum var. lacunosum Lewis S. Rose 1931-5-15 s.n. San Mateo Emerald Lake, west of Redwood City Comment
  CAS-BOT-BC132028  Allium peninsulare var. franciscanum George Oberlander 1950-5-21 929 San Mateo Grassland, north of San Andreas Lake Comment
  CAS-BOT-BC132031  Allium peninsulare var. franciscanum L. R. Abrams 1920-6-2 7502 San Mateo Back of Redwood City Comment
  RSA176772  Allium peninsulare var. franciscanum D. E. Breedlove 1963-5-13 4942 San Mateo SE corner of the jct. of Crystal Springs Road and Polhemus Road, west of San Mateo Comment
  UC615425  Allium peninsulare var. franciscanum Beryl O. Schreiber 1932-5-29 309 San Mateo Spring Valley Water Company Road Comment
  CDA33772  Allium triquetrum D. G. Kelch 2011-3-13 11 .046 San Mateo Pacifica. Along sea bluffs Comment
  JROH5874  Allium triquetrum Ann Lambrecht, Paul Heiple 2008-11-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; bench above San Francisquito Creek under bay laurel 82 Comment
  CAS-BOT-BC475496  Allium triquetrum P. C. Wheeler 1966-3-27 s.n. San Mateo Crocker Industrial Park, San Bruno Mountain Comment
  RSA15281  Alnus rhombifolia C. B. Wolf 1927-4-3 247 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  UC5355  Alnus rubra J. Burtt Davy 1895-4-21 1062 San Mateo Pilarcitos Creek Comment
  POM192775  Alnus rubra L. R. Abrams 1907-08 s.n. San Mateo Near Pescadero on road to Half-Moon Bay. Comment
  RSA140626  Amaranthus deflexus John H. Thomas 1960-6-25 8784 San Mateo Redwood City, in vacant lot near Main and Stambaugh Streets Comment
  JEPS20296  Ambrosia chamissonis Lewis S. Rose 1956-8-13 56144 San Mateo Princeton 6 Comment
  SD87531  Ambrosia chamissonis Frank W. Peirson 1925-9-13 6427 San Mateo Rockaway Beach, back of beach Comment
  CAS-BOT-BC55527  Ambrosia psilostachya W. R. Dudley 1902-9-21 s.n. San Mateo On causeway over Crystal Spring Reservoir Comment
  JROH3595  Amelanchier utahensis John H. Thomas 1980-5-6 19935 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC214045  Amsinckia Mrs. E. C. Sutliffe 1933-5-7 s.n. San Mateo 1 mile west of Menlo Park on Alpine Creek Road Comment
  JROH1356  Amsinckia intermedia H. J. Dengler 1972-4-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; in the field by Sand Hill Road opposite Whiskey Hill Road Comment
  POM287420  Amsinckia intermedia Lyman Benson 1935-4-27 6422 San Mateo La Honda Road, Santa Cruz Mts, east of Skyline Blvd., San Francisco Bay watershed. 457 Comment
  SEINET12280466  Amsinckia intermedia M. T. Doutt 1931-1 246 San Mateo S of San Francisco, near Salada Comment
  UCD119714  Amsinckia lunaris Gene B. Newcomb 1953-5-20 116 San Mateo Road west of San Mateo City to Skyline Blvd., 1.7 miles below junction to Skyline opposite pit, (Hillsborough). Comment
  UC24619  Amsinckia lycopsoides Alice Eastwood April, 1896 San Mateo near San Mateo Comment
  JROH1354  Amsinckia menziesii John Hunter Thomas 1987-5-15 24281 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  RSA88321  Amsinckia spectabilis Alice Eastwood 1915-6-13 4723 San Mateo Granada. Comment
  RSA116746  Anagallis arvensis Josephine Randall 1907-6-8 s.n. San Mateo Portola Valley. Santa Cruz Peninsula. Comment
  CAS-BOT-BC389663  Anagallis arvensis Gail Metzger 1963-3-30 s.n. San Mateo Coyote Point Comment
  CAS-BOT-BC45193  Anaphalis margaritacea Josephine D. Randall 1907-7-28 45 San Mateo Iverson's near Pescadero Creek Comment
  CAS-BOT-BC45183  Anaphalis margaritacea Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain, on slope at flower garden adjacent to April Brook. Comment
  CAS-BOT-BC45187  Anaphalis margaritacea Walter Knight; Irja Knight 1964-3-15 576 San Mateo San Bruno Mountain, Colusa Canyon Comment
  UCD128852  Anaphalis margaritacea J. M Tucker 1951-8-6 2220 San Mateo M. R. Mattei Ranch, ca. 1.5 miles northeast of Pescadero. Comment
  CAS-BOT-BC391917  Anemone grayi Le Roy Abrams 1902-3-16 2275 San Mateo King's Mountain Comment
  UC463321  Anemone oregana W. R. Dudley 1894-3-26 San Mateo redwoods beyond King's Mt. House; Santa Cruz Peninsula Comment
  CAS-BOT-BC221460  Angelica hendersonii H. L. Mason 1921-6-2 s.n. San Mateo Pebble Beach near Pescadero Comment
  CHSC23309  Angelica hendersonii Robert F. Thorne; P. Everett 1965-8-1 35077 San Mateo 21.5 mi. S of Golden Gate Bridge; on W-facing sea bluff. 68 Comment
  CAS-BOT-BC273172  Anisocarpus madioides W. R. Dudley 1895-6-5 4209 San Mateo Santa Cruz Mountain Peninsula. Redwoods - Pescadero Creek Comment
  CAS-BOT-BC273181  Anisocarpus madioides Josephine D. Randall 1907-6-29 91 San Mateo Santa Cruz Peninsula. Portola Valley Comment
  UC89529  Anisocarpus madioides C. F. Baker 1902-5-10 800 San Mateo Kings Mountain Comment
  RSA101037  Anthemis cotula G. Oberlander 1954-5-21 154 San Mateo Upper San Mateo Creek, San Francisco Watershed Reserve. Comment
  CAS-BOT-BC280640  Anthoxanthum occidentale Elmer I. Applegate 1895-3-9 815 San Mateo Near summit of Coast range west of Stanford University Comment
  CAS-BOT-BC280650  Anthoxanthum occidentale John H. Thomas 1968-12-18 14868 San Mateo Oakland YMCA Camp near Loma Mar, between Pescadero and La Honda Comment
  CAS-BOT-BC454484  Aphanes occidentalis John H. Thomas 1965-4-29 10631 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  JROH3607  Aphanes occidentalis John Hunter Thomas 1981-4-5 20266 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  CAS-BOT-BC454491  Aphanes occidentalis Ned Cahill 1975-1-8 387 San Mateo Northside of serpentine outcropping in field bordered by chapparal near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City Comment
  UCSC008173  Apiastrum angustifolium Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC392062  Aquilegia eximia A. D. E. Elmer 1903-6-1 4271 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC392065  Aquilegia eximia A. D. E. Elmer 1903-7-1 4952 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC405856  Aquilegia formosa George Oberlander 1949-4-30 66 San Mateo Pilarcitos Canyon Comment
  UCR122980  Aquilegia formosa George K. Helmkamp, E. A. Helmkamp 2001-6-2 6772 San Mateo San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1 244 Comment
  CAS-BOT-BC17320  Arabis blepharophylla Alice Eastwood 1913-2-22 2453 San Mateo San Bruno Hills. Comment
  CAS-BOT-BC17338  Arabis blepharophylla M. P. Johnson 1967-2-26 10016 San Mateo Off Crocker Avenue just south of San Francisco Boundary. Comment
  HSC6552  Arabis blepharophylla Lincoln Constance, Rimo Bacigalupi, C. R. Bell 1951-3-25 3369 San Mateo SE side of Colma Canyon 61 Comment
  UC75343  Arabis blepharophylla C. F. Baker 1903-4-6 1881 San Mateo San Bruno Hills Comment
  RSA0125507  Arabis blepharophylla Glenn A. Gorelick 1967-2-10 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  SEINET11971579  Arabis blepharophylla L. Constance, Bacigalupi, R.; Bell, C. R. 1951-1 3369 San Mateo SE side of Colma Canyon 61 Comment
  CAS-BOT-BC128626  Arbutus menziesii Elmer I. Applegate 1895-3-9 315 San Mateo Woodside Comment
  CAS-BOT-BC128672  Arbutus menziesii Margaret A. Barry 1937-4-21 12 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC128675  Arbutus menziesii W. R. Dudley 1904-4-10 s.n. San Mateo Alpine Road, Corte Madera Creek - Santa Cruz Mountain Peninsula Comment
  JROH1918  Arbutus menziesii John H. Thomas 1967-6-1 12983 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA681633  Arbutus menziesii Annuschka Deb 1989-3-17 32 A San Mateo Woodside. Comment
  JROH5920  Arctostaphylos Toni Corelli 2004-4-21 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; along driveway of private lot immediately east of Goya Gate along the Preserve's boundary fence Comment
  CAS-BOT-BC24200  Arctostaphylos andersonii W. R. Dudley 1906-5-8 s.n. San Mateo Near Crystal Springs Lake, Santa Cruz mts. Comment
  CAS-BOT-BC24169  Arctostaphylos andersonii W. R. Dudley 1902-6-1 s.n. San Mateo Woods between grenson's and moore's near Black Mt. Comment
  SEINET11987130  Arctostaphylos andersonii var. imbricata W. Knight, Knight, I. 1980-1 3828 San Mateo Tilden Botanic Garden, Berkeley, originally from windswept San Bruno Mountain 305 Comment
  SEINET11989287  Arctostaphylos andersonii var. imbricata W. Knight, Knight, I.; McClintock, E. 1982-1 4445 San Mateo Kamchatka Point, San Bruno Mt Comment
  JROH5915  Arctostaphylos crustacea subsp. crustacea John Rawlings 2017-1-25 1956 San Mateo Jasper Ridge Biological Preserve, Stanford University; north side of Road F, 49 m south of its intersection with roads D and E Comment
  SBBG83928  Arctostaphylos crustacea subsp. crustacea R. Gankin 1959-2-22 322 San Mateo 2.8 mi from jct with Hwy 5 on King's Mtn Rd Comment
  CAS-BOT-BC24483  Arctostaphylos imbricata Arthur L. Menzies 1963-3-9 s.n. San Mateo On ridge below se. end of parking lot. San Bruno Hills. Comment
  CAS-BOT-BC24487  Arctostaphylos imbricata J. H. Thomas 1961-5-7 9319 San Mateo San Bruno Mt. in northern part of county. 396 Comment
  CAS-BOT-BC24493  Arctostaphylos imbricata Marian L. Campbell 1915-6-17 s.n. San Mateo San Bruno Hills. Comment
  CAS-BOT-BC24497  Arctostaphylos imbricata Peter H. Raven 1950-2-25 1383 San Mateo W. end of ridge behind NBC station, San Bruno Mtns. 457 Comment
  UCD50867  Arctostaphylos imbricata R. F. Hoover 1964-4-24 8742 San Mateo San Bruno Mt. Comment
  JEPS108597  Arctostaphylos montaraensis R. Raiche 1984-1-27 San Mateo Montara Mountain Comment
  SEINET11989109  Arctostaphylos montaraensis Unknown 1966-1 740 B San Mateo Montara Mountain Comment
  SEINET11989285  Arctostaphylos montaraensis W. Knight, Knight, I.; McClintock, E. 1982-1 4447 San Mateo San Pedro County Park, Pacifica Comment
  JEPS98893  Arctostaphylos pacifica James Roof 1961-4-18 San Mateo type locality; Pacific Ridge, San Bruno Mountain Comment
  RSA633496  Arctostaphylos pacifica Jon E. Keeley 1996-6-24 27571 San Mateo On knob below end of paved road at top of San Bruno Mountain. 350 Comment
  CAS-BOT-BC44740  Arctostaphylos regismontana L. R. Abrams 1902-1-12 2254 San Mateo Kings Mountain Comment
  JEPS101966  Arctostaphylos regismontana Dean W. Taylor 1997-3-14 15912 San Mateo Kings Peak Road; Santa Cruz Mountains, Kings Mtn., on road to archery area under high-voltage, steel-tower eletrical transmission line 533 Comment
  POM367226  Arctostaphylos regismontana E. C. Sutliffe 1934-2-2 s.n. San Mateo Kings Mountain. Comment
  RSA141485  Arctostaphylos regismontana B. O. Schreiber 1938-10-16 2564 San Mateo On Kings Mountain. 609 Comment
  RSA380854  Arctostaphylos regismontana Roman Gankin 1966-5-17 740 A San Mateo slopes of Montara Mountain Comment
  RSA636744  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24631 San Mateo NW side of Montara Mtn. 150 Comment
  SEINET3164344  Arctostaphylos regismontana L. S. Rose 1940-2-10 40001 San Mateo Kings Mountain 701 Comment
  UC1120849  Arctostaphylos regismontana A. E. Wieslander 1939-7-16 896 San Mateo Kings Mt.-Sierra Moreno Santa Cruz Quadrangle Comment
  UC1120095  Arctostaphylos tomentosa subsp. crinita N. K. Carlson 1935-6-12 47 San Mateo 1 mi e Hollow Tree; Santa Cruz Quadrangle Comment
  POM299443  Arctostaphylos tomentosa subsp. crustacea L. S. Rose 1942-3-30 42007 San Mateo Kings Mountain. 183 Comment
  RSA636849  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24647 San Mateo NW side of Montara Mtn. 150 Comment
  RSA636850  Arctostaphylos tomentosa subsp. crustacea S. H. Gudmonson 1978-3-22 18 San Mateo 2 miles north of Woodside Road on Kings Mountain Road. Comment
  UC762228  Arctostaphylos tomentosa subsp. crustacea R. F. Hoover 1941-2-12 4763 San Mateo nw Saratoga Summit Comment
  CAS-BOT-BC46825  Arctostaphylos uva-ursi Arthur L. Menzies 1963-3-10 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC46829  Arctostaphylos uva-ursi Peter H. Raven 1951-3-12 2743 San Mateo Summit ridge San Bruno Mts. Comment
  SEINET11987331  Arctostaphylos uva-ursi J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4212 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from San Bruno Mt., near Pacific Rock Comment
  SEINET11988288  Arctostaphylos uva-ursi Unknown 1959-1 328 San Mateo near ridge of San Bruno Mountain, South San Francisco, 0.25 mi E of KRON TV transmitter Comment
  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
  SEINET11987488  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4204 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from San Bruno Mt Comment
  SEINET11989211  Arctostaphylos uva-ursi var. suborbiculata E. McClintock, Knight, W.; Knight, I. 1982-1 4630 San Mateo windy Kamchatka Point, San Bruno Mountain Comment
  CDA24519  Argemone mexicana John Beall 2007-8-8 PDR# 1461634 San Mateo San Mateo; Golden Nursery, 1122 2nd Ave. Comment
  POM209881  Armeria maritima subsp. californica D. D. Keck 1934-7-7 2942 San Mateo Pigeon Point. Comment
  RSA136189  Armeria maritima subsp. californica John H. Thomas 1954-6-11 4286 San Mateo About 0.25 miles north of Pigeon Point Light House along low coastal bluffs. Comment
  JROH4838  Arrhenatherum elatius John Rawlings 2008-5-7 1021 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Road L in disturbed grassy area, under large valley oak. 107 Comment
  POM288964  Artemisia biennis Lyman Benson 1928-11-25 788 San Mateo Stanford Univ-- Lake Searsville. Santa Cruz Mts. 152 Comment
  SEINET11853229  Artemisia californica Unknown 1930-1 7303 San Mateo Menlo Park Golf Court Comment
  POM289331  Artemisia douglasiana Lyman Benson 1937-7-8 8448 San Mateo Lake Searsville, Stanford, Mt. Range: Santa Cruz; Watershed: San Francisco Bay 122 Comment
  CAS-BOT-BC93937  Artemisia douglasiana Ira L. Wiggins 1975-8-5 22175 San Mateo Bed of San Francisquito Creek, ca 100 m above Pope Street bridge, San Mateao County side of Santa Clara-San Mateo Comment
  RSA417371  Artemisia pycnocephala Edith A. Purer 1933-7-27 5387 San Mateo 2 mi. S of Pigeon Pt. Comment
  POM313191  Arundo donax S. Galen Smith, Malcom A. Nobs 1949-8-25 1574 San Mateo Marsh south of Rockaway Beach. Comment
  UC1100217  Arundo donax Malcolm A. Nobs, S. Galen Smith 1949-8-25 1574 San Mateo s of Rockaway Beach Comment
Read comments
Jun 5 2008
  SEINET219238  Asclepias fascicularis Cynthia Taylor 1971-6-8 153 San Mateo Corner of Watkins Avenue and Railroad tracks, Atherton. 17 Comment
  RSA184926  Aster chilensis L. S. Rose 1966-8-15 66083 San Mateo Pillar Point 5 Comment
  POM54249  Aster radulinus A. D. E. Elmer 1903-07 4973 San Mateo Portola Comment
  CAS-BOT-BC186761  Astragalus gambelianus Deborah Hichborn 1920-4-19 s.n. San Mateo Woodside Comment
  JROH1986  Astragalus gambelianus Duncan M. Porter 1960-5-5 676 B San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch. Quadrat H-5 Comment
  JROH1992  Astragalus gambelianus John Hunter Thomas 1978-4-20 19072 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC186751  Astragalus gambelianus W. R. Dudley 1894-4-21 s.n. San Mateo Below Crystal Springs Dam Comment
  POM176056  Astragalus gambelianus Lyman Benson 1930-4-17 2084 San Mateo Stanford University. 152 Comment
  SD48960  Astragalus gambelianus Louis E. James 1947-4-11 1758 San Mateo Hills back of Redwood City. Comment
  JEPS88673  Astragalus nuttallii Dean W. Taylor 1990-8-7 11418 San Mateo along Highway 1, 1.6 mi s Pomponoe State Beach (Santa Cruz Mountains); , s of Pomponoe State Beach 60 Comment
  RSA10287  Astragalus nuttallii H. A. Barker 1927-5-14 658 San Mateo North of Half Moon Bay. Comment
  UC13465  Astragalus pycnostachyus var. pycnostachyus J. W. Congdon 1897-8-11 San Mateo San Gregorio <?> Comment
  RSA785883  Athyrium filix-femina subsp. cyclosorum Peter Rubtzoff 1977-11-24 9144 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC66140  Athyrium filix-femina var. cyclosorum D. E. Breedlove 1973-9-26 35558 San Mateo Pescadero Creek County Park 365 Comment
  UC219429  Atriplex californica H. M. Hall 1922-5-17 11805 San Mateo Point Montara Point Montara (in packed sand just above high tide) Comment
  UC580053  Atriplex hortensis Ira L. Wiggins 1934-8-11 6969 San Mateo Redwood City Redwood City (salt flats beside tannery) Comment
  SD40199  Atriplex leucophylla Edith A. Purer 1933-7-27 5349 San Mateo Pigeon Point. Comment
  SEINET4136305  Atriplex prostrata Howard C. Stutz 1995-10-3 9833 San Mateo Half Moon Bay.; 0 Comment
  CAS-BOT-BC146081  Avena barbata T. C. Fuller 1971-6-10 19879 San Mateo 1.6 km. east of San Gregorio. Comment
  CAS-BOT-BC98692  Baccharis douglasii Le Roy Abrams 1901-9-1 2225 San Mateo Menlo Park Comment
  CAS-BOT-BC99504  Baccharis pilularis Elizabeth McClintock 1966-9-29 s.n. San Mateo Lower part of Colma Canyon, San Bruno Mountain Comment
  CAS-BOT-BC99506  Baccharis pilularis Walter Knight; Irja Knight; Elizabeth McClintock 1964-9-11 s.n. San Mateo Point San Bruno, San Bruno Mountain Comment
  CAS-BOT-BC99509  Baccharis pilularis E. M. Zeile 1921-7-30 s.n. San Mateo Salada Comment
  CAS-BOT-BC99510  Baccharis pilularis C. F. B. 1902-10-1 1740 San Mateo Pillar Point Comment
  UC484307  Baccharis pilularis Carl B. Wolf 1930-11-5 San Mateo 4 mi s Pescadero 7 Comment
  UC527230  Baccharis pilularis Carl B. Wolf 1934-11-9 San Mateo 200 yds s of Pigeon Point Lighthouse 15 Comment
  JROH550  Baccharis pilularis subsp. consanguinea Richard L. Garber 1971-7-13 62 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH554  Baccharis pilularis subsp. consanguinea John Hunter Thomas 1988-10-17 24599 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC16636  Barbarea orthoceras Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point. Comment
  CAS-BOT-BC16639  Barbarea orthoceras J. H. Thomas 1949-4-1 210 San Mateo West of Redwood City. Comment
  RSA92820  Barbarea orthoceras P. H. Raven 1951-3-12 2744 San Mateo Summit ridge of the San Bruno Mountains. Comment
  CHSC56593  Bellardia trixago Steven Triano 1988-5-24 174 San Mateo Along w side of Sand Hill Road 0.5 mi s of its jct. with Whiskey Hill Road and 2.5 mi s of Woodside. 121 Comment
  JEPS26846  Bellardia trixago Rimo Bacigalupi with J. H. Thomas and L. Heckard 1961-5-23 7709 San Mateo at summit Monte Bello Ridge (along Page Mill Road, just nw of O'Neal Ranch, San Mateo-Santa Clara County boundary) 708 Comment
  JROH3927  Bellardia trixago John Hunter Thomas 1988-4-28 24419 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1733840  Bellardia trixago Kay H. Beach 1941-4-26 1077 San Mateo S of San Francisco city limits Skyline Drive 76 Comment
  CAS-BOT-BC100194  Bellis perennis John H. Thomas 1974-5-7 17326 San Mateo San Bruno Mountain. Along Guadalupe Parkway opposite school Comment
  CAS-BOT-BC75791  Berberis pinnata W. R. Dudley 1899-4-18 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Creek. Comment
  RSA140621  Beta vulgaris John H. Thomas 1960-6-25 8796 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. alt. below 25 feet. 8 Comment
  RSA465634  Boisduvalia stricta E. S. Spalding 1923-8-3 s.n. San Mateo Pulgas Tunnel, east side. Comment
  JEPS101807  Bolboschoenus maritimus subsp. paludosus Dean W. Taylor 1991-8-9 12267 San Mateo Bean Hollow, on margin of pond between old highway and present Highway 1 alingment. 1 Comment
  CAS-BOT-BC417700  Boykinia occidentalis Josephine D. Randall 1907-7-28 361 San Mateo Iverson's near Peter's Creek Comment
  CAS-BOT-BC420226  Boykinia occidentalis H. L. Mason 1921-7-14 s.n. San Mateo Pescadero Creek on the La Honda-Pescadero Road Comment
  JROH4854  Brachypodium distachyon W. Lennihan 1980-5-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; eastern draw trail to San Francisquito Creek, about 1/3rd way down Comment
  JROH4858  Brachypodium distachyon John Hunter Thomas 1989-5-9 24725 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4863  Brachypodium distachyon John Hunter Thomas 1991-8-4 25079 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5713  Brachypodium distachyon John Rawlings 2015-4-26 1442 San Mateo Jasper Ridge Biological Preserve, Stanford University; south side of Field Station 119 Comment
  SEINET14395443  Brachypodium sylvaticum J. Beall 2003-12-4 San Mateo Santa Cruz Mountains, Woodside on Hwy 84 at Grandview Dr., about 1 mile from Skyline Road summit. 427 Comment
  CAS-BOT-BC145494  Briza maxima Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point. Comment
  JROH4872  Briza maxima John Hunter Thomas 1988-6-1 24492 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassy area below dam. Comment
  RSA119338  Briza maxima S. S. Tillett, I. Sternback 1956-6-25 551 San Mateo Along roadside, Skyline Drive. 488 Comment
  UCD57161  Briza maxima S. S. Tillett; I. Sternback 1956-6-25 551 San Mateo Skyline Drive. 487 Comment
  CAS-BOT-BC145339  Briza minor Javier Penalosa 1963-3-30 2771 San Mateo San Bruno Mountain. Guadalupe Valley. 30 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
  JROH4891  Briza minor John Hunter Thomas 1991-4-13 24990 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM199078  Briza minor A. D. E. Elmer 1903-05 4912 San Mateo Crystal Springs Lake. Comment
  SEINET4183129 Image available Briza minor David D. Keck 1932-4-18 San Mateo Burlingame Comment
  UCD57381  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
  IRVC9059  Brodiaea elegans P. W. Rundel 1964-7-8 1361 San Mateo La Honda Road; 1.5 mi. N of Portola Road Santa Cruz Mtns 274 Comment
  UC1134026  Brodiaea elegans subsp. elegans N. Carlson 1935-6-20 72 San Mateo between Slate and Oil Creek; Santa Cruz Quad. 670 Comment
  CAS-BOT-BC484348  Brodiaea elegans subsp. elegans Otto M. Sokol 1953-5-29 114 San Mateo Near Sharon Estates along Sand Hill Road Comment
  SEINET3559685 Image available Brodiaea laxa Lewis S. Rose 1933-5-17 33169 San Mateo Redwood City. Comment
  UC421870  Brodiaea terrestris subsp. terrestris Katharine Brandegee San Mateo Moss Beach Comment
  CAS-BOT-BC483174  Brodiaea terrestris subsp. terrestris R. E. Frenkel 1964-5-22 506 San Mateo On Whiting Ridge Fire Tr. Road, SFWD, 0.2 mile north-west of Spring Valley Ridge road 329 Comment
  CAS-BOT-BC144143  Bromus Ned Cahill 1974-4-29 189 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  POM88018  Bromus berteroanus Le Roy Abrams 1902-5-4 2409 San Mateo Woodside. Comment
  POM286978  Bromus carinatus Lyman Benson 1930-4-17 2079 a San Mateo Stanford University. Corte Madera Creek. 122 Comment
  CAS-BOT-BC148992  Bromus carinatus var. carinatus John H. Thomas 1961-5-14 9374 B San Mateo San Francisco Watershed Reserve. Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. 152 Comment
  CAS-BOT-BC148995  Bromus carinatus var. carinatus Le Roy Abrams 1915-6-14 5558 San Mateo Kings Mountain. At first bridge. Comment
  JROH4899  Bromus carinatus var. carinatus W. Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. S.F. Creek Trail -- east side trail. Comment
  CAS-BOT-BC156178  Bromus catharticus Elizabeth McClintock; Paul Reeberg 1989-8-19 s.n. San Mateo San Bruno Mountains. PG&E Marsh. 22 Comment
  SJSU15317  Bromus commutatus John Rawlings 2011-5-27 1090 San Mateo Edgewood Preserve; just outside preserve at HWY280 overpass along Edgewood Trail. 168 Comment
Read comments
Feb 18 2015
  UCD164419  Bromus diandrus Peter Rubtzoff 1977-6-21 9056 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  CAS-BOT-BC155138  Bromus hordeaceus Ned Cahill 1974-4-29 190 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City. Comment
  JEPS26837  Bromus madritensis subsp. madritensis Rimo Bacigalupi with L. Heckard 1961-5-14 7700 San Mateo near s end of Crystal Springs Lake along Canada Road, about San Francisco's Pulgas Water Temple Crystal Springs Lake; , Canada Road 95 Comment
  JROH4946  Bromus madritensis subsp. madritensis John Rawlings 2013-4-14 1150 A San Mateo Jasper Ridge Biological Preserve, Stanford University; uphill from Trail 14 about 25 yards from the Rd E intersection 112 Comment
  POM264990  Bromus marginatus I. L. Wiggins 1929-5-10 3672 San Mateo Pigeon Point Comment
  SEINET10966609  Bromus marginatus Edwin B. Copel 1903-6-10 Copeland 3303 San Mateo Montana Point. Comment
  CAS-BOT-BC161754  Bromus rubens Walter Knight; Irja Knight 1965-5-15 s.n. San Mateo San Bruno Mountain. Pig Ranch Ravine. Comment
  UCD60240  Bromus vulgaris S. S. Tillett; I. Sternback 1956-6-24 534 San Mateo Middleton properton, behind (n.) Portola Camp Store, just outside Portola State Park. 396 Comment
  RSA140817  Buddleja davidii John H. Thomas 1960-6-25 8794 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. 8 Comment
  SEINET12004682  Cakile edentula subsp. edentula E. H. Graham 1931-1 6940 San Mateo Ano Nuevo Pt., S of San Francisco Comment
  SD38257  Cakile edentula var. edentula Edith A. Purer 1933-7-27 5346 San Mateo Pigeon Point Comment
  CAS-BOT-BC36871  Cakile edentula var. edentula W. R. Dudley 1908-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Laguna Salada. Comment
  CAS-BOT-BC36872  Cakile edentula var. edentula W. R. Dudley 1897-10-10 s.n. San Mateo Near Pilar Point. Comment
  RSA128368  Cakile maritima var. maritima P. H. Raven 1950-4-30 1965 San Mateo Montara. Comment
  POM199081  Calamagrostis A. D. E. Elmer 1903-06 4693 San Mateo San Pedro Comment
  UC203510  Calamagrostis nutkaensis A. D. E. Elmer 1903-5-1 5040 San Mateo San Pedro Comment
  CAS-BOT-BC233998  Calandrinia breweri Fred Hemphill 1973-4-15 687 San Mateo North of Malabar Road and Melendy Drive, San Carlos 207 Comment
  JEPS121454  Calandrinia ciliata Adam C. Schneider with C. Matt Guilliams 2013-2-2 190 San Mateo Crystal Springs Reservoir, between power transmission lines and Interstate 280. Comment
  JROH3326  Calandrinia ciliata John H. Thomas 1976-4-28 18097 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC438533  Calandrinia ciliata Philip C. Wheeler 1965-5-12 s.n. San Mateo San Bruno Mountain. Pig Ranch Ravine. Comment
  JROH1634  Callitriche marginata John H. Thomas 1968-3-31 14259 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1636  Callitriche marginata John H. Thomas 1970-4-4 15544 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1638  Callitriche marginata D. E. Breedlove 1971-5-3 19323 San Mateo Jasper Ridge Biological Preserve, Stanford University; on bluff above San Francisquito Creek, 500 yards below Searsville Dam Comment
  JROH4595  Calochortus albus John H. Thomas 1963-5-12 10085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4607  Calochortus albus John H. Thomas 1977-4-21 18539 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR104959  Calochortus albus Tom Paradise 1993-5-3 11 San Mateo San Francisco Bay area, Woodside; Huddart County Park, along Kings Mountain Road, 3 - 4 mi east of Skyline Blvd. 116 Comment
  UCR11981  Calochortus albus Blanche Clear 1938-5-22 s.n. San Mateo San Francisco Bay Region, dirt road in Hidden Valley[Pulgas Creek Valley?] between Redwood City and Belmont 61 Comment
  CAS-BOT-BC492216  Calochortus albus Eric Walther 1920-5-9 s.n. San Mateo Woodside Comment
  CAS-BOT-BC492220  Calochortus albus Otto M. Sokol 1953-5-29 117 San Mateo Bear Creek Road Comment
  HSC23997  Calochortus albus Mary Katherine Wicksten 1971-6-16 45 San Mateo Huddart Park, woods near Oak Flat Comment
  IRVC9082  Calochortus albus P. W. Rundel 1963-6-11 1117 San Mateo San Fransisco Bay drainage area; Old La Honda Road. Santa Cruz Mountain Range 305 Comment
  RSA14949  Calochortus albus Lewis S. Rose 1935-6-11 35214 San Mateo 9 mi W of Stanford University. Comment
  JROH4624  Calochortus argillosus John H. Thomas 1975-6-5 17940 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack Comment
  JROH4628  Calochortus argillosus John Hunter Thomas 1980-6-5 19994 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389720  Calochortus luteus M. K. Wicksten 1970-6-16 39 San Mateo San Mateo Comment
  CAS-BOT-BC491990  Calochortus luteus Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  POM292441  Calochortus tolmiei Lyman Benson 1930-5-3 2107 San Mateo Above Woodside, Mt. Range: Santa Cruz 244 Comment
  CAS-BOT-BC270669  Calycadenia multiglandulosa L. S. Rose 1937-9-21 37658 San Mateo Emerald Lake, W of Redwood City 182 Comment
  JROH562  Calycadenia multiglandulosa John H. Thomas 1967-11-5 14128 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM263769  Calycadenia multiglandulosa L. S. Rose 1941-6-12 41268 San Mateo Emerald Lake, hills west of Redwood City. 120 Comment
  SEINET7063126  Calycadenia multiglandulosa A. G. Vestal 1963-7-12 s.n. San Mateo Jasper Ridge. UTM Zone 10, 568418mE, 4140415mN. (WGS84/NAD83). 174 Comment
  SEINET11836279  Calycadenia multiglandulosa subsp. cephalotes L. S. Rose 1936-1 s.n. San Mateo Emerald Lake, W of Redwood City 91 Comment
  UC306753  Calystegia purpurata A. D. E. Elmer June, 1903 4299 San Mateo Pescadero Comment
  CAS-BOT-BC224650  Calystegia purpurata subsp. purpurata A. D. E. Elmer 1903-6-1 4299 San Mateo Pescadero Comment
  CAS-BOT-BC224660  Calystegia purpurata subsp. purpurata H. A. Lewis 1908-5-1 s.n. San Mateo Woodside Comment
  CAS-BOT-BC224666  Calystegia purpurata subsp. purpurata Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountains. In Colma Canyon Comment
  CAS-BOT-BC436448  Calystegia subacaulis Ned Cahill 1974-4-18 120 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JEPS112711  Calystegia subacaulis Dean W. Taylor 1994-5-10 14267 San Mateo Edgewood Park; ca. 300 meters SE of junction of Edgewood Road and Canada Road, ca. 200 m W of trail parallel to and on west side of Highway 280 137 Comment
  UC306752  Calystegia subacaulis subsp. subacaulis A. D. E. Elmer June, 1903 4826 San Mateo Crystal Springs Lake Comment
  POM49683  Camissonia ovata L. R. Abrams 1902-4-6 2316 San Mateo Portola Comment
  RSA449044  Camissonia ovata Glenn A. Gorelick 1967-4-20 s.n. San Mateo Overlooking Daly City, near San Francisco. Comment
  CAS-BOT-BC160327  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Robt. T. Orr 1961-6-27 s.n. San Mateo [Ano] Ano Nuevo Island Comment
  CHSC22126  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Robert A. Schlising; Glenn Keator 1962-2-3 2042 San Mateo Coast Ranges. Sand dunes along Hwy 1, 3.9 mi N of jct with Bonnie Doon Road. Comment
Read comments
Sep 4 2011
  UC1736718  Camissoniopsis hirtella Dean W. Taylor 1989-8-1 10411 San Mateo Montara Mountain, saddle between North Peak and Montara Knob 518 Comment
  SEINET10463029  Campanula prenanthoides Ira L. Wiggins 1929-7-4 Wiggins 3779 San Mateo 4 MI W OF LA HONDA ON HILL RD TO PESCADERO BEACH, MOIST RAVINE Comment
  JROH1475  Capsella bursa-pastoris John Hunter Thomas 1980-4-10 19877 San Mateo Jasper Ridge Biological Preserve, Stanford University; by dam Comment
  CAS-BOT-BC37667  Cardamine californica LeRoy Abrams 1902-3-16 2274 San Mateo Kings Mountain Road. Comment
  JEPS23932  Cardamine californica var. integrifolia LeRoy Abrams 1902-3-16 2274 San Mateo Kings Mountain Comment
  POM204309  Cardamine californica var. integrifolia I. L. Wiggins 1931-2-21 5089 -a San Mateo Pescadero Beach, 0.5 mile N of Pebble Beach hotel. Comment
  CAS-BOT-BC37992  Cardamine oligosperma Margaret A. Barry 1937-5-15 107 San Mateo Coal Mine Ridge. Comment
  CAS-BOT-BC37982  Cardamine oligosperma Walter Knight; Irja Knight 1965-3-14 939 San Mateo San Bruno Mountain. Romanzoffia Ravine. Comment
  CAS-BOT-BC384844  Cardionema ramosissimum Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountain. In old quarry in Colma Canyon Comment
  CAS-BOT-BC281710  Carduus pycnocephalus Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  CDA6871  Carduus pycnocephalus Wm. Davis 1962-4-24 San Mateo Gorman Hay Barn, Tanforan Race Track, San Bruno. 0 Comment
  CAS-BOT-BC19321  Carex barbarae W. R. Dudley 1909-4-27 s.n. San Mateo The Santa Cruz Mountain Peninsula. Ponds by roadside near Crystal Spring Lake. Comment
  JROH4324  Carex bolanderi John Rawlings 2010-5-19 1050 A San Mateo Jasper Ridge Biological Preserve, Stanford University; 5 yards north (lakeside) of Leonard's Bridge 106 Comment
  JROH4326  Carex bolanderi John Rawlings 2012-5-15 1121 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along bank of Bear Creek at its crossing of Road H near boundary fence. 82 Comment
  CAS-BOT-BC18935  Carex densa Lewis S. Rose 1935-5-29 35193 San Mateo Kings Mountain. Comment
  JROH4328  Carex densa John H. Thomas 1967-6-1 12946 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC18934  Carex densa Lewis S. Rose 1937-5-16 37279 San Mateo South San Francisco. 15 Comment
  CAS-BOT-BC18939  Carex densa W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Field north of Seal Cove. Comment
  CAS-BOT-BC18943  Carex densa W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Mountain Peninsula. Above keepers house, San Andreas Reservoir. Comment
  UCD140267  Carex densa Alice Eastwood; John Thomas Howell 1937-5-7 4327 San Mateo Visatacion Valley. Comment
  POM193755  Carex gracilior W. R. Dudley 1900-5-17 s.n. San Mateo Seal Creek? Santa Cruz Mountain Peninsula. Comment
  SEINET4291981 Image available Carex harfordii A. L. Hipp, Pollock, J 1999-1 ah 282 San Mateo Marsh at the mouth of Pescadero Creek, near Pescadero State Beach. North pond, along the edge of trail. Comment
  SEINET3904235  Carex montereyensis John A. Churchill 1974-4-14 7441413 San Mateo Half Moon Bay.; 0 Comment
  UC833566  Carex nudata W. R. Dudley 1903-6-6 San Mateo mouth of Peters Creek, below Iversons Santa Cruz Mountain Peninsula Comment
  RSA100991  Carex obnupta G. Oberlander 1950-5-6 828 San Mateo Pilarcitos Lake. San Francisco Watershed Reserve. Comment
  UC1055830  Carex obnupta Frank W. Gould 1939-5-6 655 San Mateo 13 mi n Santa Cruz County line (on coast highway) 15 Comment
  RSA18462  Carex senta Carl B. Wolf 1927-6-29 546 San Mateo South of Pebble Beach near Pescadero Comment
  JEPS23935  Carex serratodens Le Roy Abrams 1902-5-4 8019 San Mateo Woodside Comment
  SEINET3100624  Carex serratodens Neal Kramer 2012-3-3 2031 a San Mateo Stulsart Park, Redwood City Comment
  CDA34492  Carex subbracteata D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .176 San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. Comment
  UC836144  Carex subbracteata John Thomas Howell 1938-5-1 13778 San Mateo near South San Francisco Comment
  CAS-BOT-BC116814  Carex subbracteata var. subbracteata John Thomas Howell 1938-5-1 13778 San Mateo Near South San Francisco. Comment
  CAS-BOT-BC116819  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell 1937-5-7 4326 San Mateo Visatacion Valley. Comment
  CAS-BOT-BC116824  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5245 San Mateo Half Moon Bay Comment
  JROH4365  Carex tumulicola John Hunter Thomas 1978-4-8 19059 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC836649  Carex tumulicola W. R. Dudley 1910-5-26 San Mateo near Black Mt. (Coal Mine Ridge) Comment
  CAS-BOT-BC115510  Carex tumulicola Phillip C. Wheeler 1965-5-18 s.n. San Mateo In area adjacent to Olivet Cemetery. Comment
  CAS-BOT-BC230110  Carpobrotus chilensis Elsie Zeile 1909-8-23 s.n. San Mateo Granada Comment
  SJSU2920  Carpobrotus chilensis C. H. Bracker 1966-5-17 117 San Mateo near Moss Beach 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
  JROH5852  Castilleja John H. Thomas 1978-4-20 19090 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC249188  Castilleja affinis J. H. Thomas 1954-4-3 3831 San Mateo Pilarcitos Creek Road, 3.5 miles NE of Halfmoon [Half Moon] Bay 121 Comment
  RSA15252  Castilleja affinis Carl B. Wolf 1927-2-19 213 San Mateo Spring Valley Lakes where Skyline Drive Road turns off of Spring Valley Road. Comment
  RSA82256  Castilleja affinis F. W. Peirson 1932-7-5 10243 San Mateo Just south of Pescadero. Comment
  SD38150  Castilleja affinis Delzie Demaree 1932-4-9 8976 San Mateo Woods, Gov. Ralph Estate Comment
  SJSU667  Castilleja affinis A. W. Jacobs 1941-4-20 San Mateo Jasper Ridge Comment
  UCD18551  Castilleja affinis Roman Gankin 1950-7-9 23 San Mateo On a sea cliff outside city of Pescadero, overlooking the ocean. 6 Comment
  JEPS15589  Castilleja affinis subsp. affinis Rimo Bacigalupi with J. R. Sweeney 1954-8-3 4733 San Mateo above Thornton Beach (extreme nw San Mateo County) 54 Comment
  JEPS47425  Castilleja affinis subsp. affinis L. R. Heckard 1964-7-26 1423 San Mateo below old road from Skyline Blvd to Edgemar Comment
  JROH3946  Castilleja affinis subsp. affinis John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS103890  Castilleja affinis subsp. affinis T. I. Chuang and F. M. Chuang 1991-7-3 7861 San Mateo 1 mile S of Linda Mar, on highway 1 Comment
  UCSC007730  Castilleja affinis subsp. affinis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  LA209419  Castilleja ambigua David D. Keck; 1932-4-29 1453 San Mateo Burlingame-San Mateo city limits Comment
  JEPS7866  Castilleja ambigua subsp. ambigua Rimo Bacigalupi with G. Thomas Robbins 1954-6-18 4556 San Mateo 3.3 mi s Pescadero; Arroyo de los Frijoles Comment
  UC306603  Castilleja ambigua subsp. ambigua A. D. E. Elmer May 1903 4800 San Mateo San Pedro Comment
  SBBG40478  Castilleja ambigua subsp. ambigua W. J. Dress 1951-5-12 3339 San Mateo 4.5 mi N of Pigeon Point Comment
  UC1063459  Castilleja exserta H. S. Yates 1935-5-8 5204 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  UC103182  Castilleja exserta subsp. latifolia Katharine Brandegee Jun 1905 San Mateo Half Moon Bay Comment
  JEPS66228  Castilleja foliolosa T. I. Chuang with Fei-Mei Chuang 1971-6-12 6911 San Mateo 5.8 mi ne Big Basin Comment
  RSA400609  Castilleja foliolosa Paul C. Silva 1948-1-31 s.n. San Mateo Old La Honda Grade, 1 mile south of Skyline Blvd. 457 Comment
  SD38143  Castilleja foliolosa Delzie Demaree 1932-4-9 8973 San Mateo Dry hillsides. Gov. Rolf Estate Comment
  SEINET12288716  Castilleja latifolia Unknown 1932-1 8989 San Mateo between Sky Line Drive & Half Moon Bay Comment
  JEPS18907  Castilleja subinclusa subsp. franciscana Rimo Bacigalupi with G. Thomas Robbins 1955-8-4 5447 San Mateo just n Montara Point Lighthouse (at the town of Montara); Montara Comment
  JEPS34324  Castilleja subinclusa subsp. franciscana L. R. Heckard, and Rimo Bacigalupi 1963-7-2 1329 San Mateo just e Adobe Ave. in San Pedro Valley (grade of old county road over San Pedro Mt.); San Pedro Mt., San Pedro Valley 60 Comment
  JEPS47422  Castilleja subinclusa subsp. franciscana L. R. Heckard 1964-7-15 1420 San Mateo 0.4 mi above Tunitas Road junction with the Lobitos Creek cut-off road (along Tunitas Road, about 4.5 mi from State Hwy 1) Comment
  SJSU5850  Castilleja subinclusa subsp. franciscana R. E. Gill 1970-4-16 San Mateo La Honda Rd c. 4 mi E of junction with Skyline Blvd Comment
  SEINET7063807  Castilleja tenuis A. G. Vestal 1947-4-24 s.n. San Mateo Enclosure at jasper Ridge. UTM Zone 10, 568421mE, 4140420mN. (WGS84/NAD83). 174 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
  JEPS47394  Castilleja wightii L. R. Heckard 1964-6-24 1399 San Mateo up from Atlanta St. in Daly City (along new road up Colma Canyon); Colma Canyon, Daly City 121 Comment
  JEPS47426  Castilleja wightii L. R. Heckard 1964-7-26 1424 San Mateo below old road from Skyline Blvd to Edgemar Comment
  JEPS70084  Castilleja wightii L. R. Heckard 1972-4-16 2904 San Mateo e of Pilarcitos Lake Comment
  JEPS78273  Castilleja wightii L. R. Heckard with T. I. Chuang and Mike Morris 1979-6-21 5118 San Mateo s end Adobe Avenue (San Pedro Valley); San Pedro Valley Comment
  JEPS8516  Castilleja wightii Elsie M. Zeile 1925-3-22 San Mateo Colma Canyon Comment
  JEPS85725  Castilleja wightii L. R. Heckard 1968-7-23 2067 San Mateo along road from Daly City up Colma Canyon Comment
  JEPS85726  Castilleja wightii L. R. Heckard 1964-6-24 1393 San Mateo San Bruno Mt.; slope below (n of) transmitting stations 304 Comment
  RSA428365B  Castilleja wightii Glenn A. Gorelick 1967-4-4 s.n. San Mateo San Bruno Mts; overlooking Daly City near San Francisco. Comment
  RSA428366B  Castilleja wightii E. A. Purer 1933-7-27 5374 San Mateo 2 miles south of Pigeon Point. Comment
  UC1537582  Castilleja wightii Gordon H. True Jr. 1936-6-14 510 San Mateo 1 mi from Skyline Blvd. (on Salada Beach Road) 182 Comment
  UC198269  Castilleja wightii Katharine Brandegee 1917-7-22 San Mateo Mussel Rock Station, Ocean Shore Railway Comment
  HSC20580  Castilleja wightii L. S. Rose 1965-4-22 65026 San Mateo San Bruno Mtn., S of parking lot 366 Comment
  POM20827  Castilleja wightii Katherine Brandegee 1917-7-15 s.n. San Mateo Moss Beach between the station and the bluffs. 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-BC40392  Caulanthus lasiophyllus W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake. Comment
  POM136267  Ceanothus X regius C. F. Baker 1902-5-10 804 San Mateo Kings Mountain. Comment
  CAS-BOT-BC48306  Ceanothus cuneatus A. D. E. Elmer 1903-3-1 4578 San Mateo Portola Comment
  CAS-BOT-BC48309  Ceanothus cuneatus J. H. Thomas 1949-4-1 208 San Mateo west of Redwood City Comment
  CAS-BOT-BC48310  Ceanothus cuneatus Margaret A. Barry 1928-5-22 s.n. San Mateo Coal Mine Ridge Comment
  LA41998  Ceanothus cuneatus Lewis S. Rose; 1932-2-27 3246 San Mateo Belmont Comment
  CAS-BOT-BC48393  Ceanothus cuneatus var. cuneatus A. D. E. Elmer 1903-3-1 4578 San Mateo Portola Comment
  CAS-BOT-BC48397  Ceanothus cuneatus var. cuneatus Mrs. Campbell; Mrs. Miere 1920-3-1 s.n. San Mateo Los Altos Comment
  CAS-BOT-BC49652  Ceanothus foliosus var. foliosus J. H. Thomas 1949-4-14 280 San Mateo Kings Mountain. Roadside near Woodside. Comment
  SBBG116527  Ceanothus integerrimus D. H. Wilken with E. Painter 2003-5-10 16067 San Mateo Skyline Blvd (St Hwy 35), near head of La Honda Crk, 0.8 linear km NE of Allen Lookout, Santa Cruz Mtns 610 Comment
  CAS-BOT-BC51594  Ceanothus oliganthus var. sorediatus A. D. E. Elmer 1903-5-1 4479 San Mateo Portola Comment
  CAS-BOT-BC51595  Ceanothus oliganthus var. sorediatus Robert Robertson 1954-5-1 104 San Mateo by road 2 miles S.W. La Honda Junction 365 Comment
  CAS-BOT-BC51607  Ceanothus oliganthus var. sorediatus Margaret A. Barry 1937-5-8 82 San Mateo Woods on Coal Mine Ridge 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
  RSA282989  Ceanothus oliganthus var. sorediatus Lyman Benson 1928-11-25 787 San Mateo Searville Lake, Stanford University, Santa Cruz Mt. 122 Comment
Read comments
Jul 13 2009
  SBBG26911  Ceanothus oliganthus var. sorediatus C. B. Wolf 1941-7-31 4394 San Mateo 1 mi E of summit of La Honda Grade, Santa Cruz Mtns 396 Comment
  CAS-BOT-BC51851  Ceanothus papillosus W. R. Dudley 1902-5-17 s.n. San Mateo Kings Mountain Road Comment
  POM190252  Ceanothus papillosus D. D. Keck 1932-5-11 1774 San Mateo E side of Kings Mtn, on Kings Mtn road. 503 Comment
  SBBG50603  Ceanothus papillosus R. T. Stahmer Jr. 1972-3-24 11 F San Mateo Huddart Park, Woodside Comment
  CAS-BOT-BC52285  Ceanothus thyrsiflorus C. F. B. 1902-4-12 511 San Mateo La Honda Comment
  CAS-BOT-BC52286  Ceanothus thyrsiflorus Brandegee 1890-4-1 19 San Mateo San Gregorio 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-BC52296  Ceanothus thyrsiflorus Sue Roberts 1954-5-1 58 San Mateo La Honda, 7 miles east of La Honda Comment
  CAS-BOT-BC52299  Ceanothus thyrsiflorus W. R. Dudley 1894-3-25 s.n. San Mateo By road from San Gregorio to Pescadero Comment
  RSA153472  Ceanothus thyrsiflorus John H. Thomas 1961-5-7 9295 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  JROH585  Centaurea calcitrapa John H. Thomas 1970-7-5 15671 San Mateo Jasper Ridge Biological Preserve, Stanford University; by bridge Comment
  JROH590  Centaurea calcitrapa John H. Thomas 1974-8-3 17500 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH594  Centaurea calcitrapa John Hunter Thomas 1989-5-9 24702 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC274589  Centaurea calcitrapa H. L. Mason 1921-10-1 s.n. San Mateo County Hospital, Belmont-Crystal Springs Rd Comment
  POM54379  Centaurea melitensis A. D. E. Elmer 1903-06 4281 San Mateo Crystal Springs Lake. Comment
  RSA130992  Centaurea melitensis C. F. Leitholt 1894-8-13 s.n. San Mateo Devil's Canyon, Block Mountain. Comment
  JROH613  Centaurea solstitialis John Hunter Thomas 1992-7-24 25387 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat ramp Comment
  CDA38622  Centaurea stoebe subsp. micranthos D. Petersen 2012-9-17 PDR# MVAP 06098624 San Mateo Hillsborough; off of Polhemus Road; south shaft of New Crystal Springs Bypass Tunnel Project's muck disposal site (aka the upper terrace). 0 Comment
  RSA181235  Centaurium davyi John H. Thomas 1964-6-19 10431 San Mateo 0.9 mile south of Tunitas Creek near Coast Highway. 61 Comment
  UCSC005474  Centaurium muehlenbergii Randall Morgan 1998-7-28 3329 San Mateo N stretch of Stage Road off Hwy 1 Comment
  CAS-BOT-BC272817  Centromadia parryi subsp. parryi David D. Keck 1931-10-5 1291 San Mateo Salada Beach Comment
  SEINET3146197  Centromadia pungens L. S. Rose 1938-8-18 38231 San Mateo San Mateo 6 Comment
  UC943015  Centromadia pungens subsp. pungens Lewis S. Rose 1949-8-14 49166 San Mateo Bayshore Blvd San Mateo Comment
  CAS-BOT-BC384959  Cerastium arvense David D. Keck 1933-5-11 2303 San Mateo Montara Summit, Montara Mountain Comment
  CAS-BOT-BC400167  Ceratophyllum demersum James McMurphy 1905-10-29 s.n. San Mateo Lake above Portola Comment
  POM139639  Cercocarpus betuloides A. D. E. Elmer 1903-05 4530 San Mateo Searsville Lake Comment
  CAS-BOT-BC135472  Cercocarpus betuloides var. betuloides K. Hofpaugh 1929-5-6 585 San Mateo La Honda Grade Comment
  CAS-BOT-BC135475  Cercocarpus betuloides var. betuloides Margaret A. Barry 1937-4-21 11 San Mateo Woods on Coal Mine Ridge Comment
  JROH3624  Cercocarpus betuloides var. betuloides John H. Thomas 1969-5-28 15079 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3628  Cercocarpus betuloides var. betuloides John Hunter Thomas 1987-5-19 24297 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA4771  Chamaesyce serpens J. T. Howell 1979-8-11 53359 San Mateo Airport Sheraton, Airport Boulevard, Burlingame. 0 Comment
  SEINET6901192  Chenopodium album Robert A. Evers, Clara V. Evers 1975-8-24 115025 -A San Mateo Trailer Villa, Redwood City. Comment
  SEINET5765025 Image available Chenopodium macrospermum var. halophilum L. R. Abrams, I. L. Wiggins 1930-1 I 78 San Mateo Salada Beach Comment
  UC1076471  Chenopodium multifidum Herbert L. Mason 1924-10-19 1115 San Mateo Colma Comment
Read comments
Apr 6 2009
  POM279724  Chenopodium murale Lyman Benson 1937-6-27 8394 San Mateo Moss Beach. 3 Comment
  RSA137301  Chenopodium murale John H. Thomas 1949-10-16 1146 San Mateo Along sandstone bluffs, just north of outlet of San Gregorio Creek Comment
  JROH1826  Chenopodium rubrum var. humile John Hunter Thomas 1980-11-27 20190 San Mateo Jasper Ridge Biological Preserve, Stanford University; delta Comment
  CAS-BOT-BC473026  Chenopodium rubrum var. humile W. R. Dudley 1906-10-12 14 San Mateo Santa Cruz Mountain Peninsula. Pond [14 - either cln no or pond no.] Comment
  IRVC9050  Chlorogalum pomeridianum P. W. Rundel 1963-7-7 1144 San Mateo San Francisco Bay drainage area; Kings Mtn Road; woodside. Santa Cruz Mountains 305 Comment
  IRVC9051  Chlorogalum pomeridianum P. W. Rundel 1963-7-7 1144 San Mateo San Francisco Bay drainage area; Kings Mtn Road; woodside. Santa Cruz Mountains 305 Comment
  CAS-BOT-BC499311  Chlorogalum pomeridianum var. divaricatum J. H. Thomas 1958-6-11 s.n. San Mateo About 4.3 miles due east of Belmont near Crystal Springs Reservoir 91 Comment
  JROH4647  Chlorogalum pomeridianum var. pomeridianum John H. Thomas 1974-6-27 17454 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the low flow crossing below Searsville Dam Comment
  CAS-BOT-BC246318  Chloropyron maritimum subsp. palustre L. R. Abrams 1914-7-16 5124 San Mateo Cooley's Landing on San Francisco Bay Comment
  CDA19922  Chondrilla juncea J. Beall 2002-6-26 PDR P 120157 San Mateo San Francisco Bay Area; Atherton Caltrain Station on Fair Oak Ln. 0 Comment
  UC125349  Chorizanthe robusta Katharine Brandegee June 1905 San Mateo Colma Comment
  RSA152079  Chrysanthemum coronarium John H. Thomas 1961-5-7 9321 San Mateo San Bruno Mountain, western end of mountain 244 Comment
  RSA130687  Chrysanthemum leucanthemum W. R. Dudley 1908-6-19 s.n. San Mateo Hills N of Jersey Farm Dairy. W of Baden Comment
  RSA176821  Cicendia quadrangularis John H. Thomas 1961-4-29 9182 San Mateo Jasper Ridge Biological Experimental Area, about five miles southwest of Palo Alto. Comment
  POM202467  Cirsium brevistylum L. S. Rose 1933-6-9 33216 San Mateo 3 miles W of San Bruno. Comment
  RSA0070579  Cirsium brevistylum A. D. E. Elmer 1903-06 4277 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC100946  Cirsium fontinale var. fontinale A. D. E. Elmer 1903-6-1 4292 San Mateo Crystal Springs Lake Comment
  CDA1229  Cirsium fontinale var. fontinale T. C. Fuller 1970-5-13 19532 -A San Mateo East side of I-280, 100 yds. s. of junction Hwy 92 w. to Half Moon Bay. E slope above Crystal Springs Reservoir. Comment
  SEINET5506212  Cirsium fontinale var. fontinale Lewis S. Rose San Mateo Comment
  CAS-BOT-BC285671  Cirsium occidentale var. occidentale A. A. Heller 1906-6-8 8379 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks Comment
  UC30815  Cirsium occidentale var. venustum J. Burtt Davy 1893-6-17 815 San Mateo Belmont Comment
  CAS-BOT-BC280523  Cirsium quercetorum A. D. E. Elmer 1903-6-1 4290 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC285860  Cirsium vulgare Ira L. Wiggins 1977-7-23 22189 San Mateo Northerly side of San Francisquito Creek stream bed, ca 150 m upstream from Pope Street bridge, Menlo Park Comment
  CAS-BOT-BC285866  Cirsium vulgare Ned Cahill 1974-10-8 380 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  SBBG14780  Cirsium vulgare P. H. Raven 1961-8-24 16585 San Mateo E side of Crystal Springs Lakes Comment
  UC107814  Clarkia purpurea subsp. quadrivulnera Katharine Brandegee 1905-6-14 San Mateo Colma Comment
  CAS-BOT-BC163964  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1894-5-1 s.n. San Mateo Road from Woodside to Crystal Spr. Reservoir Comment
  CAS-BOT-BC163969  Clarkia purpurea subsp. quadrivulnera H. A. Dutton 1900-4-17 s.n. San Mateo Woodside Serpentine. Along middle of S. side Comment
  CAS-BOT-BC163972  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1894-5-30 s.n. San Mateo Near Redwood City Comment
  UC917332  Clarkia purpurea subsp. quadrivulnera W. A. Harvey and J. M. Tucker 1948-6-29 1710 San Mateo just w Highway 5 (Skyline Boulevard) (beside road to Portola State Park) Comment
  CAS-BOT-BC165149  Clarkia rubicunda Walter Knight; Walter Knight 1963-6-24 s.n. San Mateo Quarry 4 Comment
  CAS-BOT-BC165154  Clarkia rubicunda Lewis S. Rose 1936-5-28 36301 San Mateo Emerald Lake, W. of Redwood City 91 Comment
  JEPS82913  Clarkia rubicunda Roy E. Buck, Randall A. Morgan 1983-6-7 335 San Mateo in triangle of Edgewood and Canada Rds. and Hwy. I-280, n of small watercourse San Francisco Watershed Reserve 158 Comment
  JROH3019  Clarkia rubicunda John H. Thomas 1974-6-30 17457 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC107818  Clarkia rubicunda Katharine Brandegee 1905-6-20 San Mateo near Half Moon Bay; Moss Beach (Winkie's) Comment
  UC422840  Clarkia rubicunda W. C. Blasdale 1893-6-17 San Mateo Belmont Comment
  CAS-BOT-BC165126  Clarkia rubicunda L. R. Abrams 1907-8-25 s.n. San Mateo Between [Pecadero] Pescadero and Half Moon Bay Comment
  CAS-BOT-BC165132  Clarkia rubicunda L. R. Abrams 1907-8-25 s.n. San Mateo Between [Pecadero] Pescadero and Half Moon Bay Comment
  CAS-BOT-BC165144  Clarkia rubicunda Elizabeth McClintock 1965-6-13 s.n. San Mateo Lower slope on south side above Olivet Cemetery Comment
  CAS-BOT-BC165169  Clarkia rubicunda George Oberlander 1949-8-20 377 San Mateo Grassland on Sawyers Ridge Comment
  CAS-BOT-BC165172  Clarkia rubicunda W. R. Dudley 1894-5-30 s.n. San Mateo Near Redwood City Comment
  RSA18508  Clarkia rubicunda Carl B. Wolf 1927-7-14 612 San Mateo Summit of Kings Mountain Rd. Comment
  SD88531  Clarkia rubicunda Darley F. Howe 1972-6-25 San Mateo Ocean bluff, 7.5 miles North of Half Moon Bay Comment
  UC1279922  Clarkia rubicunda Peter H. Raven 1957-6-30 11011 San Mateo 1.8 mi s Sharp Park (on State Highway 1) 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
  CAS-BOT-BC165599  Clarkia unguiculata A. D. E. Elmer 1903-6-1 4293 San Mateo Alpine School House Comment
  CAS-BOT-BC439990  Claytonia perfoliata subsp. mexicana Peter H. Raven 1951-3-12 2746 San Mateo Summit ridge San Bruno Mountains Comment
  CAS-BOT-BC91485  Clematis lasiantha C. F. Baker 1902-4-12 499 San Mateo La Honda. Comment
  CAS-BOT-BC91486  Clematis lasiantha C. F. Baker 1902-4-12 499 San Mateo La Honda. Comment
  JROH3417  Clematis lasiantha John Hunter Thomas 1985-4-11 23519 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU10609  Clematis lasiantha E. C. Carbett 1961-4-8 284 San Mateo Searsville L Park at head of San Francisquito Cr Comment
  JROH2877  Clinopodium douglasii John H. Thomas 1973-6-15 16845 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC499401  Clintonia andrewsiana W. R. Dudley 1989-6-8 s.n. San Mateo Road near Alpine School House, Black mt. Comment
  RSA104877  Collinsia heterophylla Elizabeth Sprague 1956-5-28 s.n. San Mateo 2 miles east of Skyline Drive on La Honda Rd. Comment
  UC26610  Collinsia multicolor J. Burtt Davy 1895-4-20 1025 San Mateo Millbrae Comment
  CAS-BOT-BC240929  Collinsia multicolor W. R. Dudley 1906-5-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Hills S.W. of San Mateo Comment
  POM14894  Collinsia sparsiflora var. collina C. F. Baker 1902-4-4 444 San Mateo Crystal Springs Lake. Comment
  JROH3142  Collomia heterophylla John Hunter Thomas 1986-5-17 24056 San Mateo Jasper Ridge Biological Preserve, Stanford University; creek trail downstream from Rattlesnake Rock Comment
  RSA59639  Collomia heterophylla Verne Grant, Alva Grant 1950-6-28 8921 San Mateo west side of Kings Mt. on Tunitas Creek road Comment
  JROH209  Conium maculatum John H. Thomas 1968-5-22 14462 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of lake Comment
  POM133231  Conium maculatum C. F. Baker 1902-12-1 196 San Mateo Summit of Coast Range Comment
  RSA0104570  Convolvulus arvensis Sandra M. Namoff 70 San Mateo Half Moon Bay, near Francis Beach State Park, on Kelly Ave SW of intersection with Hwy 1, easement. 18 Comment
  CAS-BOT-BC288966  Conyza floribunda John Thomas Howell 1975-9-25 51508 San Mateo At summit, San Bruno Mt 396 Comment
  RSA120502  Corallorhiza maculata S. S. Tillett, I. Sternback 1956-6-25 546 San Mateo Along ridge on border of Middleton property and Portola State Park, south side of road to park 396 Comment
  POM215943  Corallorhiza striata D. D. Keck 1933-6-24 2456 San Mateo La Honda Comment
  POM226854  Cordylanthus maritimus subsp. palustris L. R. Abrams 1914-7-16 s.n. San Mateo Cooley's Landing on San Francisco Bay Comment
  JEPS4612  Cordylanthus pilosus subsp. pilosus L. S. Rose 1941-8-9 41362 San Mateo Woodside 60 Comment
  JROH4032  Cordylanthus pilosus subsp. pilosus Carol Zabel 1989-8-7 20 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 12, near Mapache Gate Comment
  RSA40318  Cordylanthus pilosus subsp. pilosus L. S. Rose 1941-8-9 41362 San Mateo Woodside. 549 Comment
  RSA100992  Cordylanthus rigidus subsp. rigidus G. Oberlander 1949-8-20 381 San Mateo San Andreas Valley, San Francisco Watershed Reserve. Comment
  UC885664  Cordylanthus rigidus subsp. rigidus Lewis S. Rose 1941-9-13 41441 San Mateo Crystal Springs Lake 182 Comment
  CAS-BOT-BC101484  Corethrogyne filaginifolia John Thomas Howell 1962-6-6 37415 San Mateo Crystal Springs Lake Comment
  RSA212483  Cornus californica P. H. Raven 1954-5-16 6967 San Mateo North of mouth of Lobos Creek, Presidio Comment
  CAS-BOT-BC209817  Cornus glabrata C. B. Wolf 1931-8-20 2329 San Mateo 3 miles west of Mayfield on road to La Honda 91 Comment
  UC527527  Cornus glabrata C. B. Wolf 1931-8-20 San Mateo 2 mi. back of Stanford University (near Schenkel's Camp, Los Trancos Creek); Los Trancos Creek 91 Comment
  CAS-BOT-BC210352  Cornus sericea J. I. McMurphy 1906-5-11 22 San Mateo Santa Cruz Peninsula. Los Trancos Creek, Santa Cruz Mts. Comment
  CDA34067  Cornus sericea D. G. Kelch 2011-3-13 11 .056-B San Mateo Near Half Moon Bay along Capistrano Creek. Comment
  SEINET12137024  Cornus sericea subsp. occidentalis J. I. McMurphy 1906-1 22 San Mateo Los Francos Creek, Santa Cruz Mts Comment
  JROH1865  Cornus sericea subsp. sericea John H. Thomas 1967-5-31 12933 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC180277  Corylus cornuta subsp. californica Walter Knight; Irja Knight 1965-4-4 s.n. San Mateo In Bitter Cherry Ravine at the upper part. San Bruno Mountain Comment
  CAS-BOT-BC180280  Corylus cornuta subsp. californica Robert Setzer 1969-3-29 2137 San Mateo Colma Canyon along stream bank. San Bruno Mountain Comment
  CAS-BOT-BC180362  Corylus cornuta subsp. californica Le Roy Abrams 1902-3-6 2271 San Mateo Kings Mountain Comment
  HSC3476  Corylus cornuta subsp. californica C. B. Wolf 1927-2-26 223 San Mateo On the La Honda Grade Comment
  JROH1336  Corylus cornuta subsp. californica John Hunter Thomas 1981-2-14 20228 San Mateo Jasper Ridge Biological Preserve, Stanford University; redwood area below dam Comment
  POM270392  Corylus cornuta var. californica Lyman Benson 1931-2-28 2613 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  UCR64445  Corylus cornuta var. californica David D. Keck 1932-2-12 1362 San Mateo La Honda road, east slope of Coast Range above Searsville Lake 305 Comment
  CAS-BOT-BC453504  Cotoneaster lacteus Elizabeth McClintock 1978-7-1 s.n. San Mateo Colma Canyon; San Bruno Mountains Comment
  RSA210917  Cotoneaster lacteus John H. Thomas 1968-10-6 14842 San Mateo Vicinity of railroad tracks and Dumbarton Bridge causeway entrance. E of Palo Alto. Comment
  JROH3647  Cotoneaster pannosus John Hunter Thomas 1992-5-14 25232 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat ramp Comment
  UCR255717  Cotoneaster pannosus Peter Rubtzoff 1977-4-16 8951 San Mateo San Francisco Bay Region, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction 220 Comment
  CAS-BOT-BC287307  Cotula australis Walter & Irja Knight 1965-3-21 957 San Mateo San Bruno Mt. North Power Line Ridge along summit road Comment
  CAS-BOT-BC287308  Cotula australis Peter H. Raven 1951-2-8 2731 San Mateo Summit ridge, San Bruno Mts Comment
  CAS-BOT-BC291459  Cotula coronopifolia Elizabeth McClintock; Paul Reeberg 1988-8-12 s.n. San Mateo San Bruno Mountains Comment
  CAS-BOT-BC291464  Cotula coronopifolia John H. Thomas 1966-5-13 116112 San Mateo Near Palo Alto Yacht Harbor Comment
  CAS-BOT-BC291469  Cotula coronopifolia Elmer I. Applegate 1895-3-9 293 San Mateo Field near Woodside Comment
  CAS-BOT-BC291472  Cotula coronopifolia Josephine D. Randall 1907-7-24 64 San Mateo Near Crystal Springs Lake, Santa Cruz Peninsula Comment
  RSA101041  Cotula coronopifolia G. Oberlander 1950-5-6 933 San Mateo Marsh, north boundary, San Francisco Watershed Reserve Comment
  JEPS50002  Crassula aquatica F. T. Bioletti June, 1893 San Mateo Lake Pilarcitos Comment
  UCD101808  Crassula aquatica W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge, near Block Mountain; Santa Cruz Mountain Peninsula. Comment
  CAS-BOT-BC427606  Crassula aquatica George Oberlander 1949-8-20 374 San Mateo San Francisco Watershed Reserve. About San Andreas Lake Comment
  RSA291922  Crassula aquatica Robert A. Norris 1981-11-7 4276 San Mateo Pond near Ano Nuevo Point. Comment
  CAS-BOT-BC427838  Crassula connata Ned Cahill 1975-2-21 407 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC291512  Crepis capillaris Roman Gankin; Peter Rubtzoff 1975-9-11 s.n. San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, San Bruno Mountains Comment
  JROH669  Crepis vesicaria subsp. taraxacifolia John Hunter Thomas 1989-5-9 24696 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1957  Croton setiger John H. Thomas 1967-11-5 14131 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5739  Cryptantha clevelandii var. florosa John Rawlings 2015-5-28 1659 San Mateo Jasper Ridge Biological Preserve, Stanford University. Bird marker along Trail 9 at edge of chaparral. 140 Comment
  RSA10273  Cryptantha clevelandii var. florosa H. A. Barker 1927-5-14 671 San Mateo North of Half Moon Bay. Comment
  JROH1358  Cryptantha flaccida Robert Robertson 1954-4-23 92 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1362  Cryptantha flaccida John Hunter Thomas 1991-5-2 25023 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC78495  Cryptantha flaccida C. F. Baker 1902-4-6 468 San Mateo Crystal Springs Lake Comment
  JROH1363  Cryptantha micromeres Paul R. Hichborn 1920-5-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; ridge near Searsville Lake Comment
  JROH1372  Cryptantha microstachys John H. Thomas 1961-4-29 9197 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  JROH1373  Cryptantha microstachys John H. Thomas 1973-4-7 16518 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5622  Cryptantha microstachys John Rawlings 2014-5-6 1223 A San Mateo Jasper Ridge Biological Preserve, Stanford University; on the top of Trevor's Knoll, about 70 m north of Trail 10. 181 Comment
  CAS-BOT-BC80653  Cupressus goveniana Harry A. Dutton 1949-9-1 s.n. San Mateo On the north bank of the North Fork of Butano Creek (common corner of Sections 11 & 12 and 13 & 14, range 4 W) Comment
  RSA128701  Cupressus macrocarpa J. T. Howell 1957-5-8 s.n. San Mateo Skyline Blvd. west of San Bruno Comment
  POM7529  Cuscuta pentagona C. F. Baker 1903-10-15 1761 San Mateo Stanford University. Comment
  UCR143006  Cuscuta salina Edith A. Purer 1933-8-13 5408 San Mateo San Francisco Bay Region, near Baden Station 12 Comment
  UC580080  Cuscuta salina var. major Ira L. Wiggins 1934-8-11 6970 San Mateo 1 mi n Redwood City (along Bayshore Highway) Comment
  JROH5712  Cuscuta subinclusa John Rawlings, Ann Lambrecht, Diane Renshaw 2015-5-19 1548 San Mateo Jasper Ridge Biological Preserve, Stanford University. Horse Trail near Escobar Rd. 121 Comment
  HSC23885  Cuscuta subinclusa Mary Katherine Wicksten 1971-7-2 152 San Mateo Huddart Park, Kings Mtn. Rd. above Miwok Area Comment
  UCD34111  Cyclospermum leptophyllum Beecher Crampton 1976-7-31 9404 San Mateo Redwood City. Comment
  CAS-BOT-BC287333  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-BC287341  Cynara cardunculus John Thomas Howell 1956-11-14 31961 San Mateo Bayshore Highway just S of Main St, Redwood City Comment
  UC1598121  Cynara cardunculus subsp. cardunculus John Thomas Howell 1956-11-14 31961 San Mateo just s Main Street (Bayshore Highway); Redwood City Comment
  RSA141086  Cynara scolymus John H. Thomas 1960-6-25 8800 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. 8 Comment
  HSC23980  Cynoglossum grande Mary Katherine Wicksten 1971-7-2 149 San Mateo Huddart Park, Miwok Flat Comment
  JROH1390  Cynoglossum grande John H. Thomas 1958-2-15 6986 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1391  Cynoglossum grande Duncan M. Porter 1961-2-5 739 San Mateo Jasper Ridge Biological Preserve, Stanford University; near gate at Westridge end of ridge Comment
  POM286867  Cynoglossum grande Lyman Benson 1931-2-28 2608 San Mateo Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 152 Comment
  RSA130413  Cynoglossum grande W. R. Dudley 1896-2-16 s.n. San Mateo Glen Gloaming, branch of Pescadero and Mill Creek near Black Mt. Comment
  SEINET5546120  Cynoglossum grande H. S. Gentry 1931-1 14 San Mateo Collected about 1.5 miles W of San Mateo, Half-Moon Bay Road. Comment
  UCR121491  Cynosurus echinatus George K. Helmkamp, E. A. Helmkamp 1999-6-28 4958 San Mateo Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City 457 Comment
  CAS-BOT-BC114777  Cyperus acuminatus Ira L. Wiggins 1973-7-29 22046 San Mateo Bed of San Francisquito Creek, 50-200 m upstream from Pope Street Bridge. Comment
  POM290779  Cyperus eragrostis Lyman Benson 1937-7-8 8446 San Mateo Lake Searsville, Stanford University; Santa Cruz Mt. Range 122 Comment
  UC1100529  Cyperus eragrostis Herbert L. Mason and Verne Grant 1946-8-28 13084 San Mateo entrance to county prison San Francisco Comment
  CAS-BOT-BC114453  Cyperus eragrostis David Daniels Keck 1931-8-6 1263 San Mateo Desiccated swamp near Searsville Lake. 75 Comment
  CAS-BOT-BC114463  Cyperus eragrostis Phillip C. Wheeler 1965-6-19 s.n. San Mateo Crocker Industrial Park Comment
  OBI17020  Cyperus eragrostis Lewis S. Rose 1965-9-20 65107 San Mateo Burlingame, Trousdale Dr. and California Dr 9 Comment
  RSA101027  Cyperus eragrostis G. Oberlander 1949-7-24 318 San Mateo Lower Crystal Springs Lake, San Francisco Watershed Reserve Comment
  RSA184845  Cyperus eragrostis L. S. Rose 1965-9-20 65107 San Mateo Burlingame, Trousdale Dr. and California Dr. 9 Comment
  SEINET3909461  Cyperus eragrostis Lewis S. Rose 1965-9-20 65107 San Mateo Burlingame, Trousdale Dr. & California Dr.; 0 9 Comment
  CAS-BOT-BC435184  Cypselea humifusa George Oberlander 1949-8-20 372 San Mateo San Francisco Watershed Reserve. Upper Crystal Spr. Lake Comment
  JROH5017  Dactylis glomerata John Hunter Thomas 1977-6-16 18753 San Mateo Jasper Ridge Biological Preserve, Stanford University. Weedy area near old racing oval Comment
  JROH5036  Danthonia californica John H. Thomas 1967-6-1 12947 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA790274  Danthonia californica Peter Rubtzoff 1976-5-22 8547 San Mateo San Bruno Mtn: ''Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  SEINET3128861  Danthonia californica L. R. Abrams 1902-5-11 2451 San Mateo Capital Springs Comment
  SJSU10402  Danthonia californica E. C. Garbett 1960-5-1 120 San Mateo Georgia Lane c. 1 mi E of Portola Rd, Portola Valley Comment
  POM199070  Danthonia californica var. californica A. D. E. Elmer 1903-06 4707 San Mateo Crystal Springs Lake. Comment
  SJSU15419  Datura stramonium Toni Corelli 2011-8-31 718 San Mateo Half Moon Bay east of of Hwy. 1 and south of Higgins Canyon Road 30 Comment
  JROH230  Daucus pusillus John Hunter Thomas 1989-5-11 24742 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH234  Daucus pusillus John Hunter Thomas 1992-4-29 25171 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC299197  Deinandra corymbosa subsp. corymbosa J. H. Thomas 1949-10-16 1152 San Mateo Just north of outlet of San Gregorio Creek Comment
  CAS-BOT-BC299229  Deinandra corymbosa subsp. corymbosa David D. Keck 1927-6-10 396 San Mateo Radio Station, Montara Point Comment
  CAS-BOT-BC299205  Deinandra corymbosa subsp. corymbosa W. R. Dudley 1897-10-11 s.n. San Mateo Near Half Moon Bay (Spanishtown) 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-BC299224  Deinandra corymbosa subsp. corymbosa H. M. Hall 1930-8-17 12881 San Mateo East side of Crystal Springs Lake 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-BC389749  Delphinium M. Danielson 1967-4-30 s.n. San Mateo Old road above Crystal Springs Rd. on S.F. Watershed lands Comment
  CAS-BOT-BC9214  Delphinium californicum Lewis Samuel Rose 1965-5-3 65058 San Mateo San Bruno Mountain, Colma Canyon 60 Comment
  RSA152052  Delphinium californicum John H. Thomas 1961-5-7 9279 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  CAS-BOT-BC9210  Delphinium californicum subsp. californicum Elizabeth McClintock 1965-6-13 s.n. San Mateo Colma Canyon, San Bruno Mountains Comment
  JROH3434  Delphinium californicum subsp. californicum John H. Thomas 1973-6-10 16811 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3438  Delphinium californicum subsp. californicum John Hunter Thomas 1987-5-19 24293 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC9246  Delphinium decorum Henry Nicholas Bolander s.n. San Mateo San Bruno Comment
  CAS-BOT-BC10282  Delphinium hesperium Herbert L. Mason 1931-7-14 s.n. San Mateo Pescadero Creek, La Honda road Comment
  CAS-BOT-BC10292  Delphinium hesperium Elizabeth McClintock 1979-5-28 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC9868  Delphinium nudicaule W. R. Dudley 1893-5-28 S. N. San Mateo Santa Cruz Peninsula, beyond Kings Mountain Comment
  CAS-BOT-BC9869  Delphinium nudicaule Oliver Norvell 1931-4-18 1417 San Mateo Kings Mountain road. Comment
  UC136329  Delphinium nudicaule C. F. Baker 1902-5-10 795 San Mateo along banks King's Mt. Comment
  RSA18089  Delphinium patens Carl B. Wolf 1929-4-26 3659 San Mateo Woodside. Comment
  POM177534  Delphinium patens W. R. Dudley 1894-05 s.n. San Mateo Woodside to Crystal Springs Reservoir Comment
  POM270648  Delphinium patens Arthur L. Cohen 1935-4-21 606 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  POM270660  Delphinium patens Lyman Benson 1928-4-21 595 San Mateo Stanford University, Mt. Range: Santa Cruz; River: San Francisquito Creek. 91 Comment
  CAS-BOT-BC116526  Delphinium patens subsp. patens C. B. Wolf 1929-4-26 3659 San Mateo Woodside Comment
  JROH3454  Delphinium patens subsp. patens John H. Thomas 1976-4-3 18070 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3456  Delphinium patens subsp. patens John H. Thomas 1977-4-21 18540 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3458  Delphinium patens subsp. patens John Hunter Thomas 1980-4-10 19872 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam, grassy area Comment
  JROH5730  Delphinium patens subsp. patens John Rawlings 2013-4-11 1199 San Mateo Jasper Ridge Biological Preserve, Stanford University. Northwest side of small drainage upstream from the upper bridge on Trail 11. 134 Comment
  CAS-BOT-BC7893  Delphinium variegatum C. F. Baker 1902-4-6 458 San Mateo Crystal Springs Lake 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
  POM177524  Delphinium variegatum W. R. Dudley 1896-4-4 s.n. San Mateo Near Crystal Springs Lake Comment
  SEINET3075261 Image available Delphinium variegatum C. W. Sharsmith 1951-4-6 5825 San Mateo Woodside Hills, 3 miles west of Woodside. 180 Comment
  CAS-BOT-BC116532  Delphinium variegatum P. F. Covel 1936-4-24 269 San Mateo Foot of Saratoga Grade Comment
  CAS-BOT-BC7927  Delphinium variegatum subsp. variegatum Alice Eastwood 1896-4-1 s.n. San Mateo Crystal Springs Comment
  JROH3463  Delphinium variegatum subsp. variegatum John H. Thomas 1955-5-6 4977 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent grassy slopes Comment
  JEPS23360  Delphinium variegatum subsp. variegatum W. L. Jepson 1914-3-22 5734 San Mateo Redwood Farm Redwood City (home of Mr. and Mrs. J. W. Goodwin) 30 Comment
  CAS-BOT-BC633  Dendromecon rigida subsp. rigida Ira L. Wiggins 1925-5-24 1747 San Mateo Grade between Woodside and La Honda. Comment
  JEPS83606  Deschampsia cespitosa subsp. holciformis Roy E. Buck and Randall A. Morgan 1984-6-17 505 San Mateo ca. 5.7 km. s.w. of Redwood City (in area bounded by Hwy. I-280 & Edgewood Rd. & Canada Rd.); San Francisco Watershed Reserve 152 Comment
  SJSU15433  Deschampsia cespitosa subsp. holciformis Toni Corelli 2010-5-4 626 San Mateo Ano Nuevo, Cascade Field along Atkinson Bluff Trail 12 Comment
  JROH5056  Deschampsia danthonioides John Hunter Thomas 1991-5-7 25036 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
  JROH5073  Deschampsia elongata John Hunter Thomas 1988-5-16 24465 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low flow crossing. Comment
  RSA17939  Deschampsia holciformis C. B. Wolf, Le Roy Abrams 1927-6-16 s.n. San Mateo On the west side of Spring Valley Lakes. Comment
  SEINET10527676  Deschampsia holciformis Edwin B. Copel 1903-6-10 Copeland 3305 San Mateo Montara Point. Comment
  CAS-BOT-BC903  Dicentra chrysantha Rimo Bacigalupi 1926-4-30 1355 San Mateo Near summit of Mt. Diablo Comment
  CAS-BOT-BC912  Dicentra formosa J. H. Thomas 1961-5-14 9364 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  UCR2938  Dicentra formosa Wm. Horn Jr. 1963-4-13 630413- 01 San Mateo Hillsborough, 2240 Redington Road 30 Comment
  CAS-BOT-BC704  Dicentra formosa subsp. formosa Peter Rubtzoff 1953-5-14 1340 San Mateo Pilarcitos Creek canyon, 1 to 2 miles downstream from Pilarcitos Lake. Comment
  POM87987  Dicentra formosa subsp. formosa L. R. Abrams 1902-4-13 2336 San Mateo Crystal Spring. Comment
  UC1300934  Dichelostemma capitatum Helen K. Sharsmith 1963-2-16 5140 San Mateo above Daly City; San Francisco Bay Region, San Bruno Mountain 106 Comment
  CAS-BOT-BC500890  Dichelostemma capitatum P R Hielborn 1920-5-16 223 San Mateo Plants of the Santa Cruz Mountain Peninsula, Santa Cruz Islandhills by San Francisquito Creek Comment
  CAS-BOT-BC500929  Dichelostemma capitatum John H. Thomas 1971-5-2 15849 San Mateo Near the intersection of Canada and Edgewood roads, about 4 mi SW of center of Redwood City 304 Comment
  POM169473  Dichelostemma capitatum subsp. capitatum C. F. Baker 1903-4-6 1891 San Mateo San Bruno Hills near S.F. [San Francisco] Comment
  CAS-BOT-BC150450  Diplacus aurantiacus Elmer I. Applegate 1895-3-9 410 San Mateo Woodside road, near Stanford University Comment
  CAS-BOT-BC150466  Diplacus aurantiacus L. R. Abrams 1915-6-23 5257 San Mateo Saratoga Big Basin Road Comment
  CAS-BOT-BC151991  Diplacus douglasii W. R. Dudley 1900-3-26 s.n. San Mateo Beyond Woodside, half way up the Mt. - Santa Cruz Peninsula Comment
  CAS-BOT-BC121857  Dirca occidentalis Lewis S. Rose 1964-3-9 64004 San Mateo N end of Crystal Springs Lake 121 Comment
  CAS-BOT-BC121867  Dirca occidentalis G. Edelbrock 1975-2-8 1 San Mateo San Francisco Watershed 152 Comment
  CAS-BOT-BC121868  Dirca occidentalis Alice Eastwood 1922-5-31 11334 San Mateo Crystal Springs Lakes Comment
  JROH4205  Dirca occidentalis John H. Thomas 1971-4-21 15770 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4212  Dirca occidentalis John Hunter Thomas 1981-4-5 20282 San Mateo Jasper Ridge Biological Preserve, Stanford University. This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  RSA15268  Dirca occidentalis Carl B. Wolf 1927-3-2 s.n. San Mateo Above Searsville Lake Comment
  RSA18298  Dirca occidentalis Carl B. Wolf 1927-5-31 418 San Mateo Searsville Lake Comment
  RSA15289  Disporum hookeri var. hookeri Carl B. Wolf 1927-4-3 257 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  RSA244344  Disporum hookeri var. hookeri C. W. Tilforth, John Dourley 1973-7-19 933 San Mateo Gazos Creek Road, between Butano and Big Basin State Parks Comment
  UC1100272  Distichlis spicata Malcolm A. Nobs, S. Galen Smith 1949-8-26 1602 San Mateo Marshes at mouth of Pescadero Creek Comment
  POM287492  Dodecatheon hendersonii subsp. cruciatum Lyman Benson 1931-2-28 2609 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  CAS-BOT-BC159529  Drymocallis glandulosa var. glandulosa Josephine D. Randall 1907-6-8 339 San Mateo Portola Valley - Santa Cruz Peninsula Comment
  CAS-BOT-BC159550  Drymocallis glandulosa var. glandulosa Alice Eastwood 1912-6-10 327 San Mateo Crystal Springs Comment
  CAS-BOT-BC159505  Drymocallis glandulosa var. glandulosa Elizabeth McClintock; Phillip Wheeler 1967-5-14 s.n. San Mateo Vicinity of fence separating Brisbane from Crocker Estate Company position of San Bruno Mountain, on east side of Mountain, above Harold Ave. Comment
  CAS-BOT-BC159540  Drymocallis glandulosa var. glandulosa H. A. Lewis 1908-5-7 s.n. San Mateo Near Searsville Comment
  CAS-BOT-BC67888  Dryopteris arguta Ira L. Wiggins 1928-4-14 2920 San Mateo Alpine Creek Road Comment
  UC74801  Dryopteris arguta C. F. Baker 1902-1-15 320 San Mateo w side King's Mt Comment
  CAS-BOT-BC428369  Dudleya farinosa Alice Eastwood 1937-7-25 18883 San Mateo Pebble Beach, Pescadero Comment
  JROH1807  Dysphania ambrosioides John H. Thomas 1964-10-2 10514 a San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH5090  Echinochloa crus-galli John Hunter Thomas 1981-9-24 20749 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5099  Ehrharta erecta Ann Lambrecht 2003-11-5 7 San Mateo Jasper Ridge Biological Preserve, Stanford University. About 10 m downstream from low flow crossing, N side of stream. 81 Comment
  JROH1914  Elatine John Hunter Thomas 1984-4-8 23276 San Mateo Jasper Ridge Biological Preserve, Stanford University 166 Comment
  CAS-BOT-BC229011  Eleocharis palustris Elizabeth McClintock; Paul Reeberg 1989-4-6 s.n. San Mateo San Bruno Mountains. At the base of Owl Canyon 45 Comment
  POM144786  Eleocharis palustris A. D. E. Elmer 1903-07 4767 San Mateo San Pedro. Comment
  POM144805  Eleocharis palustris E. B. Copeland 1903-03 3340 San Mateo Searsville. Comment
  JROH5796  Elymus X hansenii John Rawlings 2016-7-6 1892 San Mateo Jasper Ridge Biological Preserve, Stanford University; 80 yards west of Escobar Gate and 6 ft. south of Rd F 163 Comment
  CAS-BOT-BC203689  Elymus glaucus subsp. glaucus George Oberlander 1950-5-6 931 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  JROH5104  Elymus glaucus subsp. glaucus John H. Thomas 1971-5-30 15979 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5108  Elymus glaucus subsp. glaucus John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC235205  Elymus multisetus Ned Cahill 1974-5-30 306 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH5127  Elymus multisetus John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15954  Elymus multisetus John Rawlings, Ken Hickman 2016-5-26 1831 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  POM87686  Elymus trachycaulus subsp. trachycaulus Le Roy Abrams 1902-5-11 2452 San Mateo Crystal Springs. Comment
  HSC23933  Epilobium brachycarpum Mary Katherine Wicksten 1971-8-19 201 San Mateo Huddart Park, along road to Redwood Shelter area Comment
  RSA18504  Epilobium brachycarpum Carl B. Wolf 1927-7-14 616 San Mateo Summit of Kings Mountain Rd. Comment
  CAS-BOT-BC166617  Epilobium canum subsp. canum Margaret A. Barry 1937-7-15 194 San Mateo Exposed slope on Coal Mine Ridge Comment
  RSA184862  Epilobium canum subsp. canum L. S. Rose 1965-9-4 65099 San Mateo Skyline Blvd and half Moon Bay Road, Cahill Ridge 244 Comment
  UCR121551  Epilobium ciliatum George K. Helmkamp, E. A. Helmkamp 1999-6-28 4998 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  JROH3053  Epilobium ciliatum subsp. ciliatum John Hunter Thomas 1978-7-2 19241 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  SDSU8797  Epilobium ciliatum subsp. watsonii D. F. Howe 1967-8-6 4368 San Mateo Swamp at Half Moon Bay Comment
  JROH3064  Epilobium densiflorum John Hunter Thomas 1979-9-9 19726 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of Searsville Lake Comment
  JROH3066  Epilobium densiflorum John Hunter Thomas 1981-5-25 20623 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3068  Epilobium densiflorum John Hunter Thomas 1981-7-12 20703 San Mateo Jasper Ridge Biological Preserve, Stanford University; on old beach Comment
  JROH3074  Epilobium torreyi John H. Thomas 1967-5-31 12923 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR253354  Equisetum A. C. Sanders 2014-8-3 41236 San Mateo San Francisco Bay, South San Francisco, San Francisco Bay Trail in vicinity of S Airport Drive, Utah Ave., and Haskins Way, between Hwy 101 and San Francisco Bay 6 Comment
  JROH67  Equisetum telmateia subsp. braunii Lawrence J. Winship 1974-11-2 4 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UC311544  Equisetum telmateia subsp. braunii A. D. E. Elmer March, 1903 4501 San Mateo Portola Comment
  JROH5144  Eragrostis pectinacea var. pectinacea Ann Lambrecht 2005-8-24 20 San Mateo Jasper Ridge Biological Preserve, Stanford University. Sand Hill Road fence 5 or 6 m from Bear Creek crossing. 89 Comment
  CAS-BOT-BC299882  Erechtites glomeratus Phillip C. Wheeler 1965-6-19 s.n. San Mateo Crocker Land Park, Brisbane, San Bruno Mountain Comment
  CAS-BOT-BC299893  Erechtites glomeratus J. H. Thomas 1955-12-6 5514 San Mateo Pilarcitos Lake Dam Comment
  CDA4539  Erechtites minimus P. Arnaud 1958-7-13 839 -58 San Mateo San Mateo County Memorial Park. 0 Comment
  UC1244716  Eremocarpus setiger John H. Thomas 1959-8-22 8076 San Mateo about 5 mi sw Palo Alto; Jasper Ridge 152 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
  CAS-BOT-BC295094  Erigeron glaucus Louis F. Pitelka 1974-5-28 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  CAS-BOT-BC295081  Erigeron glaucus W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Montara Mountains Comment
  UCD18550  Erigeron glaucus Roman Gankin 1950-7-9 22 San Mateo On a sea cliff outside city of Pescadero, overlooking the ocean. 6 Comment
  CAS-BOT-BC216133  Eriodictyon californicum Fred Hemphill 1973-5-6 762 San Mateo North of Malabar Road and Melendy Dr., San Carlos 207 Comment
  CAS-BOT-BC216245  Eriodictyon californicum Josephine D. Randall 1907-6-1 165 San Mateo Los Trancos Road near Stanford University, Santa Cruz Peninsula Comment
  HSC24048  Eriodictyon californicum Mary Katherine Wicksten 1971-6-18 6 San Mateo Huddart Park by park office Comment
  JROH2719  Eriodictyon californicum John H. Thomas 1970-7-5 15667 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2725  Eriodictyon californicum John H. Thomas 1974-5-29 17398 San Mateo Jasper Ridge Biological Preserve, Stanford University; riders' shack Comment
  JROH2733  Eriodictyon californicum John Hunter Thomas 1991-5-17 25056 San Mateo Jasper Ridge Biological Preserve, Stanford University; between dam and San Francisquito Creek near pump house Comment
  LA205649  Eriodictyon californicum Lewis S. Rose; 1935-6-11 35217 San Mateo Kings Mountain Comment
  CAS-BOT-BC250543  Eriogonum gracile L. R. A. 1902-9-21 2988 San Mateo Crystal Lake Comment
  JEPS111099  Eriogonum gracile Zoe Ellis Chandik 1993-7-25 San Mateo Along Hwy 280, E side near Farmhill Road.. Comment
  SD12564  Eriogonum latifolium Edith A. Purer 1933-7-27 5370 San Mateo Send dunes two miles south of Pigeon Point Comment
  UC176458  Eriogonum latifolium Katharine Brandegee 1913-8-11 San Mateo Tobin Comment
  CAS-BOT-BC251975  Eriogonum latifolium Phillip C. Wheeler 1965-5-18 s.n. San Mateo Base of the mountain adjacent to Olivet Cemetery Comment
  CAS-BOT-BC251981  Eriogonum latifolium Elsie M. Zeile 1921-7-30 s.n. San Mateo Salada Beach (slopes nr. road) Comment
  CAS-BOT-BC251994  Eriogonum latifolium Helen D. Geis 1901-10-26 s.n. San Mateo Bluffs along Halfmoon Bay Comment
  CAS-BOT-BC251999  Eriogonum latifolium Lewis S. Rose 1933-7-21 33307 San Mateo Montara. Sandy ocean bluffs Comment
  POM279949  Eriogonum latifolium Lyman Benson 1930-8-15 2565 San Mateo San Gregorio. Comment
  JEPS111094  Eriogonum luteolum Zoe Ellis Chandik 1992-7-14 92 -2 San Mateo Crystal Springs Reservoir, south edge of serpentine (sludge) talus slope, below Hwy 280 on San Francisco Watershed land, 0.1 mi N of Hwy 92 (Ralston Ave.) east of junction with Skyline Blvd 121 Comment
  JEPS111097  Eriogonum luteolum Zoe Ellis Chandik 1992-7-14 92 -3 San Mateo On north side of trail just inside Sunset (pedestrian) entrance of Edgewood County Park Comment
  JROH3230  Eriogonum luteolum var. luteolum John H. Thomas 1972-8-18 16146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3231  Eriogonum luteolum var. luteolum John H. Thomas 1974-10-26 17636 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1206485  Eriogonum luteolum var. luteolum Le Roy Abrams 1902-9-21 2988 San Mateo Crystal Lake - Woodside Comment
  JROH3239  Eriogonum luteolum var. luteolum Carol Zabel 2003-6-23 50 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail b. Comment
  RSA423118  Eriogonum luteolum var. luteolum E. A. Purer 1933-8-25 s.n. San Mateo Skyline Blvd, on hillside near Schullser tablet Comment
  JEPS83064  Eriogonum nudum Roy E. Buck, Randall A. Morgan, James A. West 1983-7-23 449 San Mateo 1.4 km w San Andreas Dam (at n end of Sawyer Ridge, on sw-facing slope above last curve in gravel ridge road before intersection above San Andreas Dam); San Francisco Watershed Reserve, Sawyer Ridge 312 Comment
  JEPS127777  Eriogonum nudum var. auriculatum Adam C. Schneider with C. Matt Guilliams 2013-3-9 30 San Mateo Comment
  RSA171029  Eriophyllum confertiflorum R. F. Thorne, Percy C. Everett 1963-6-9 32229 San Mateo Top of San Bruno Mountain 335 Comment
  RSA675661  Eriophyllum confertiflorum L. S. Rose 1950-5-20 50142 San Mateo Emerald Lake region, hills w. of Redwood City. 244 Comment
  JROH696  Eriophyllum confertiflorum var. confertiflorum John H. Thomas 1967-5-31 12942 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH697  Eriophyllum confertiflorum var. confertiflorum John H. Thomas 1967-5-31 12942 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC301256  Eriophyllum lanatum var. arachnoideum Peter H. Raven 1957-6-24 10963 San Mateo Just south of Linda Mar Comment
  CAS-BOT-BC301266  Eriophyllum lanatum var. arachnoideum C. F. Leitholt 1893-5-27 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Summit Springs, Kings Mountain Comment
  JROH722  Eriophyllum lanatum var. arachnoideum John Hunter Thomas 1985-5-22 23672 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA116761  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1893-5-27 s.n. San Mateo Foot of Summit Springs Road, near Woodside. Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC124130  Eriophyllum latilobum Amos Arthur Heller 1907-5-28 8584 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  NY168698  Eriophyllum latilobum A. A. Heller 1907-5-28 8584 San Mateo This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  CAS-BOT-BC301982  Eriophyllum staechadifolium Robt. T. Orr 1961-6-27 s.n. San Mateo Ano [Ano] Nuevo Island Comment
  JEPS121473  Eriophyllum staechadifolium Adam C. Schneider with Alison Colwell 2013-6-23 292 San Mateo Pacifica State Beach, west of CA State Highway 1. Comment
  POM204323  Eriophyllum staechadifolium I. L. Wiggins 1929-7-4 3793 San Mateo Pescadero Beach Comment
  CAS-BOT-BC301963  Eriophyllum staechadifolium John H. Thomas 1963-5-20 10123 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  RSA116778  Eriophyllum staechadifolium W. R. Dudley 1898-1-4 s.n. San Mateo Bank of Ocean Shore- mouth of Waddell Creek. Santa Cruz Mountain Peninsula Comment
  SEINET3558734 Image available Erodium botrys David D. Keck 1932-3-6 1391 San Mateo Portola. Comment
  CAS-BOT-BC41437  Eruca vesicaria subsp. sativa Elsie Z. Lovegrove 1948-2-22 s.n. San Mateo Coast road near Montara. Comment
  JROH241  Eryngium jepsonii John H. Thomas 1977-4-28 18563 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC54513  Erysimum capitatum Reed Clark Rollins 1941-3-22 2951 San Mateo San Bruno Hills, 2 miles southeast of Daly City. Comment
  CAS-BOT-BC54830  Erysimum franciscanum W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake. Comment
  CAS-BOT-BC54841  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-6-4 914 San Mateo Above southeast shore of Crystal Springs Lake, soutwest base Pulgas Ridge. 91 Comment
  CAS-BOT-BC54853  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-4-2 906 a fl. 906b fr. San Mateo Fifield Ridge, just above San Mateo Creek and north of Pilarcitos Lake. 243 Comment
  CAS-BOT-BC54857  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-4-2 908 a fl. 908b fr. San Mateo Just above and west of south end of San Andreas Lake. 213 Comment
  CAS-BOT-BC54868  Erysimum franciscanum Le Roy Abrams 1902-5-11 2443 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC54873  Erysimum franciscanum John H. Thomas 1965-4-29 10608 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC54877  Erysimum franciscanum Peter H. Raven 1950-2-25 1374 San Mateo San Bruno Mountains. Between Brisbane and N.B.C. Television Station. 243 Comment
  CAS-BOT-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-BC54890  Erysimum franciscanum Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo San Bruno Mountain. Below top of mountain in vicinity of the radio station. Comment
  UC136093  Erysimum franciscanum C. F. Baker 1903-4-6 1885 San Mateo San Bruno Hills Comment
  PGM186  Erysimum franciscanum Vern Yadon 1968-4-5 San Mateo Pigeon Pt Lighthouse area Highway 1, Pigeon Pt Lighthouse just S of Comment
  CAS-BOT-BC403560  Eschscholzia californica Walter Knight; Irja Knight 1964-4-25 632 San Mateo San Bruno Mountain. Power Line Ridge Comment
  JROH3097  Eschscholzia californica Richard L. Garber 1971-5-11 7 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC403546  Eschscholzia californica H. L. Mason 1922-4-1 s.n. San Mateo At Pigeon Point Light Comment
  CAS-BOT-BC403556  Eschscholzia californica Brandegee 1890-5-1 K San Mateo San Gregorio Comment
  JROH5889  Eschscholzia californica Ruth Porter 1998-4-28 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB11488  Eschscholzia californica Olson, Jim 1962-4-17 San Mateo 1 mile southeast of Halfmoon Bay on Halfmoon Bay to San Mateo Road 12 Comment
  POM272325  Eschscholzia californica subsp. californica Arthur L. Cohen 1935-4-21 627 San Mateo Jasper Ridge, Stanford University. Santa Cruz Mtn Range, San Francisco Bay Watershed. 152 Comment
  CAS-BOT-BC202737  Euonymus occidentalis L. R. Abrams 1906-9-24 s.n. San Mateo Goat Ranch Canon [Canyon], Santa Cruz Mts. near Portola Comment
  RSA116765  Euonymus occidentalis H. L. Mason 1921-1 s.n. San Mateo San Francisquito Creek near Searsville Lake. Comment
  RSA116766  Euonymus occidentalis Elmer I. Applegate 1895-5-11 s.n. San Mateo Near Searsville Dam; Santa Cruz Mountain Peninsula. Comment
  UC1795595  Euphorbia oblongata J. Beall 2002-6-3 PDR 120145 San Mateo Pope at San Francisquito Creek Comment
  JROH1970  Euphorbia spathulata Herbert Dengler 1963-4-21 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; 500' N.E. of serp. Comment
  POM223330  Euphorbia spathulata L. S. Rose 1935-5-4 35151 San Mateo Burlingame. Comment
  CAS-BOT-BC310624  Eurybia radulina A. D. E. Elmer 1903-7-1 4973 San Mateo Portola Comment
  CAS-BOT-BC310614  Eurybia radulina C. F. Leitholt 1894-8-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Devils Canon [Canyon], Black Mountain Comment
  CAS-BOT-BC310619  Eurybia radulina L. R. Abrams 1916-10-19 6350 San Mateo Searsville Ridge Comment
  UC1557877  Eurybia radulina J. Semple, S. Heard 1987-9-21 8914 San Mateo CA-35 27.4 km s of CA-92 Comment
  SEINET5708704 Image available Euthamia occidentalis Delzie Demaree 1933-1 10531 San Mateo Leepsic Junction, Baden. Rolling bay area.; Leepsic Junction 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
  CAS-BOT-BC210049  Festuca arundinacea Peter Rubtzoff 1977-6-21 9060 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and northwest of Fog Forest. Comment
  JROH5148  Festuca arundinacea John Hunter Thomas 1977-6-16 18752 San Mateo Jasper Ridge Biological Preserve, Stanford University. Weedy area near old racing oval. Comment
  JROH6209  Festuca bromoides John Rawlings 2013-3-31 1183 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2 at the Zoology Cabin foundation site. 75 Comment
  RSA86775  Festuca californica D. D. Keck 1932-5-11 1499 San Mateo Above Woodside on La Honda Road, east slope of Santa Cruz Mountains Comment
  CAS-BOT-BC278359  Festuca californica subsp. californica Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo San Bruno Mountain. West slope of San Bruno Mountain Comment
  CAS-BOT-BC278349  Festuca californica subsp. californica W. R. Dudley 1899-4-23 s.n. San Mateo Santa Cruz Mountain Peninsula. Permanente Creek, north Branch Comment
  CAS-BOT-BC278479  Festuca idahoensis Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  JROH5497  Festuca myuros John H. Thomas 1973-3-12 16498 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5502  Festuca myuros Stephen N. Turitzin 1976-3-7 7 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-BC278859  Festuca occidentalis W. R. Dudley 1895-6-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Creek Comment
  JROH5286  Festuca perennis John Hunter Thomas 1984-4-24 23305 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5292  Festuca perennis W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9. Comment
  RSA191944  Filago gallica R. F. Thorne, P. Everett 1963-6-9 32227 San Mateo On top of San Bruno Mountain. 335 Comment
  UCD164213  Foeniculum vulgare Peter Rubtzoff 1978-9-16 9269 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction; in upper part of East Fork Colma Creek canyon. Comment
  RSA133096  Fragaria californica Donald A. Johansen 1933-5-18 709 San Mateo Along road from Portola to La Honda. Comment
  SJSU2271  Fragaria chiloensis C. W. Sharsmith 1947-4-11 6752 San Mateo Pescadero Beach near Pescadero Point Comment
  CAS-BOT-BC437034  Fragaria chiloensis J. H. Thomas 1949-6-4 576 San Mateo 1.4 miles south of road to Pescadero Comment
  CAS-BOT-BC437039  Fragaria chiloensis Walter Knight; Irja Knight 1964-4-25 688 San Mateo West of Radio Road, San Bruno Mountain Comment
  CAS-BOT-BC437062  Fragaria vesca subsp. bracteata L. S. Rose 1927-3-25 s.n. San Mateo Woodside Comment
  CAS-BOT-BC457513  Fragaria vesca subsp. californica W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs, Santa Cruz Pennisula Comment
  CAS-BOT-BC457523  Fragaria vesca subsp. californica Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo Below top of mountain in vicinity of radio station, San Bruno Mountain Comment
  JROH3544  Frangula californica subsp. californica John Hunter Thomas 1977-6-16 18790 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along raised causeway Comment
  JROH3548  Frangula californica subsp. californica John Hunter Thomas 1981-2-14 20211 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC53602  Frangula californica subsp. tomentella Alice Eastwood 1922-5-30 11333 San Mateo Crystal Springs lakes Comment
  CHSC57013  Frankenia salina Josephine Boyd 1988-5-3 San Mateo On Sand Point in the Menlo Park Baylands at the e end of the Embarcadero ca 0.5 mi e of the Palo Alto Municipal Airport and 0.3 mi nw of the San Mateo County-Santa Clara County boundary. 4 Comment
  UC19157  Frankenia salina J. Burtt Davy 1893-6-17 808 San Mateo Belmont Comment
  POM130871  Fraxinus latifolia C. F. Baker 1903-6-30 3355 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC130133  Fritillaria affinis A. D. E. Elmer 1903-5-1 5045 San Mateo Portola Comment
  POM273485  Fritillaria affinis Lyman Benson 1930-4-27 2099 San Mateo Stanford University 122 Comment
  JEPS4953  Fritillaria biflora var. ineziana Inez Smith 1914-3-12 San Mateo Hillsboro Comment
  CAS-BOT-BC130378  Fritillaria liliacea Volney Rattan 1880-1-1 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC130386  Fritillaria liliacea John H. Thomas 1969-4-30 15031 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  POM273462  Fritillaria liliacea Lyman Benson 1929-3-16 s.n. San Mateo Crystal Springs Lake, Spring Valley Comment
  SJSU115  Fritillaria liliacea Thelma Silva 1931-3-8 San Mateo Spring Valley, head of Pilarcitos Creek Comment
  RSA0037218  Fumaria Peter Rubtzoff 1988-5-12 9921 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; NW part of the area, near the old Guadalupe Road between Bog Trail and Saddle Trail Junctions. Comment
  CDA34013  Fumaria capreolata D. G. Kelch 2011-3-13 11 .058 San Mateo Near Half Moon Bay along Capistrano Creek. Comment
  JROH3103  Fumaria capreolata John Rawlings, Toni Corelli 2012-5-15 1123 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road H at Bear Creek crossing 85 Comment
  JROH3102  Fumaria capreolata Ann Lambrecht 2002-5-22 3 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek, below Dennis Martin marker Comment
  JROH3784  Galium californicum subsp. californicum James McMurphy 1906-8-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3786  Galium murale John H. Thomas 1958-5-10 7138 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3788  Galium murale John H. Thomas 1961-4-29 9177 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA130817  Galium nuttallii Josephine Randall 1907-6-8 352 San Mateo Portola Valley. Santa Cruz Peninsula. Comment
  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
  UC483490  Gamochaeta ustulata Ira L. Wiggins 1929-7-4 3772 San Mateo 4 mi w La Honda (on hill road to Pescadero Beach) Comment
  CAS-BOT-BC344858  Gamochaeta ustulata Peter Rubtzoff 1975-10-24 8431 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  JROH796  Gamochaeta ustulata John Hunter Thomas 1983-4-14 21403 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  CAS-BOT-BC194562  Garrya elliptica D. E. Breedlove 1974-5-13 36203 San Mateo Brushy slopes San Pedro Park, Pacifica 152 Comment
  JROH2540  Garrya elliptica W. R. Dudley 1899-6-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2541  Garrya elliptica E. A. McGregor 1907-2-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University 243 Comment
  RSA155427  Garrya elliptica L. S. Rose 1962-2-5 62001 San Mateo San Andreas Lake. 152 Comment
  RSA181583  Garrya elliptica E. A. McGregor 1907-2-10 s.n. San Mateo Jasper Ridge. 244 Comment
  JROH5195  Gastridium phleoides John Hunter Thomas 1984-5-2 23327 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM290958  Gastridium phleoides Lyman Benson 1937-7-8 8444 San Mateo Lake Searsville, Stanford, Santa Cruz, San Francisco Bay 121 Comment
  CDA19877  Gastridium phleoides L. Kuwahara 2002-5-17 PDR P 120137 San Mateo San Francisco Bay Area; Growing from rock used to resurface roads on watershed property. 0 Comment
  SACT001241  Gastridium ventricosum Malcolm Nobs, S. Smith 1949-8-26 San Mateo Marshy streambank about 1 mile south of Pigeon Point. Comment
  CAS-BOT-BC219144  Genista monspessulana Ira L. Wiggins 1929-7-4 3790 San Mateo Moist ravine 4 mi. W. of La Honda on Hill road to Pescadero Beach Comment
  CAS-BOT-BC219149  Genista monspessulana Sue Roberts 1954-5-1 59 San Mateo La Honda in redwood area on bank above road 7 miles east of La Honda Comment
  CHSC56539  Genista monspessulana Steven Triano 1988-5-24 177 San Mateo On the sw corner of the jct. of Portola Road and Old La Honda Road, ca 3.2 mi s of Woodside. 115 Comment
  JROH2014  Genista monspessulana John Hunter Thomas 1983-4-14 21407 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  JROH2018  Genista monspessulana John Hunter Thomas 1987-4-30 24213 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0028369  Geranium carolinianum W. R. Dudley 1898-4-24 s.n. San Mateo Field near Corte de Madera Bridge. Comment
  JROH2615  Geranium dissectum John H. Thomas 1974-4-13 17156 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2621  Geranium dissectum John Hunter Thomas 1992-5-14 25225 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat ramp. Comment
  PASA675  Geranium dissectum Mabel B. Peirson 1926-2-24 San Mateo Moss beach Comment
  CAS-BOT-BC166682  Geranium dissectum Peter Rubtzoff 1976-5-22 8546 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH2629  Geranium molle John Hunter Thomas 1978-4-8 19059 C San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC133800  Gilia achilleifolia subsp. multicaulis A. Eastwood 1893-5-19 San Mateo San Carlos Mt. Comment
  UC75485  Gilia clivorum C. F. Baker Apr 1903 1899 San Mateo San Bruno Hills 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
  SJSU113  Glycyrrhiza lepidota G. Wight 1929-5-30 San Mateo below Jasper Ridge, Stanford Univ. Comment
  POM58028  Gnaphalium chilense E. B. Copeland 1903-6-18 3211 San Mateo Montara Point. Comment
  CAS-BOT-BC344857  Gnaphalium palustre Peter Rubtzoff 1975-10-11 8423 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  POM58047  Gnaphalium palustre C. F. Baker 1902-10-20 1860 San Mateo Searsville Comment
  CAS-BOT-BC307440  Gnaphalium palustre W. R. Dudley 1909-10-31 s.n. San Mateo Searsville Lake, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC302083  Grindelia Paul Reeberg 1989-5-19 s.n. San Mateo San Bruno Mountains. On ridge between Firth Canron [Canyon] & Brisbane Ravine, uphill water tank 152 Comment
  CAS-BOT-BC304506  Grindelia hirsutula John H. Thomas 1968-10-6 14845 San Mateo Vicinity of railroad tracks and Dumbarton Bridge causeway entrance. East of Palo Alto Comment
  CAS-BOT-BC304545  Grindelia hirsutula Phillip C. Wheeler 1965-7-8 s.n. San Mateo San Bruno Mountain. Along road on ridge Comment
  CAS-BOT-BC304552  Grindelia hirsutula W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Peninsula. By road from Pilarcitos to San Andreas Comment
  CAS-BOT-BC304555  Grindelia hirsutula Phillip C. Wheeler 1965-7-8 s.n. San Mateo San Bruno Mountain. Along road on ridge Comment
  CAS-BOT-BC304562  Grindelia hirsutula David D. Keck 1932-5-25 1783 San Mateo Hills two miles west of Belmont Comment
  CAS-BOT-BC304565  Grindelia hirsutula R. E. Frenkel 1963-12-7 320 San Mateo San Francisco Water District, Whiting Ridge Road, ca. 0.4 mile north of the junction with Spring Valley Ridge Road Comment
  JEPS7750  Grindelia hirsutula Peter H. Raven 1950-4-30 1959 San Mateo Montara Montara (windblown slopes facing ocean) 15 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
  SEINET3139960  Grindelia hirsutula M. P. Dunford 1959-10-3 549 San Mateo Crystal Springs Lake, 1/4 mi N of jct of Hwy 5 (Skyline Blvd) & Ralston Avenue Comment
  UC483491  Grindelia hirsutula Ira L. Wiggins 1929-7-4 3799 San Mateo sea bluffs at Pescadero Beach Pescadero Beach Comment
  UC897085  Grindelia hirsutula J. T. Howell 1932-10-21 San Mateo Pigeon Point Comment
  CAS-BOT-BC304539  Grindelia hirsutula Alice Eastwood; John Thomas Howell 1939-7-9 7440 San Mateo Skyline Blvd. east of La Honda Comment
  JROH826  Grindelia hirsutula John Hunter Thomas 1987-5-26 24316 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH827  Grindelia hirsutula John Hunter Thomas 1988-5-3 24442 San Mateo Jasper Ridge Biological Preserve, Stanford University; powerline draw Comment
  UC520408  Grindelia hirsutula J. A. Moore and J. A. Steyermark 1931-8-8 3685 San Mateo exposed slope near sea Ft. Winfield Scott 35 Comment
  SD30785  Grindelia stricta var. angustifolia Edith A. Purer 1933-8-26 5525 San Mateo Along highway, at edge of ditch near salt water Comment
  CHSC345  Grindelia stricta var. platyphylla B. Richardson 1929-5-11 San Mateo Moss Beach. 4 Comment
  CAS-BOT-BC282868  Hainardia cylindrica A. G. Vestal 1926-5-1 s.n. San Mateo San Pedro Point Comment
  JROH830  Helenium puberulum John H. Thomas 1961-6-14 9542 San Mateo Jasper Ridge Biological Preserve, Stanford University; along stream below dam Comment
  JROH834  Helenium puberulum Richard L. Garber 1971-7-13 75 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA3886  Helenium puberulum I. L. Wiggins 1929-7-4 3791 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  UC1192221  Helenium puberulum Malcolm A. Nobs and S. Galen Smith 1949-8-25 1576 San Mateo marsh s of Rockaway Beach Comment
  UC1598595  Helenium puberulum A. D. E. Elmer Jul 1903 4968 San Mateo San Mateo Comment
  CAS-BOT-BC309525  Helenium puberulum Elizabeth McClintock; Paul Reeberg 1988-8-18 s.n. San Mateo San Bruno Mountains. Along Summer Seep Trail 220 Comment
  CAS-BOT-BC309530  Helenium puberulum E. M. Zeile 1921-7-30 1132 San Mateo Mussel Rock Comment
  POM54388  Helenium puberulum A. D. E. Elmer 1903-07 4968 San Mateo San Mateo Comment
  RSA0034607  Helenium puberulum I. L. Wiggins 1929-7-4 3791 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  JROH848  Helianthella californica var. californica Elmer I. Applegate 1895-5-11 264 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Comment
  JROH852  Helianthella californica var. californica John H. Thomas 1967-5-12 12880 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH860  Helianthella californica var. californica John Hunter Thomas 1988-5-3 24444 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  UCSC006543  Heliotropium curassavicum Randall Morgan 1988-6-4 1227 San Mateo N of lighthouse at Pigeon Point Comment
  CAS-BOT-BC305927  Helminthotheca echioides Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  CAS-BOT-BC305928  Helminthotheca echioides Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC314941  Hemizonia congesta subsp. luzulifolia David D. Keck 1932-5-6 1492 San Mateo East side of Crystal Springs Lake 60 Comment
  JEPS44416  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1965-8-27 65094 San Mateo w Redwood City; Emerald Lake 182 Comment
  JROH864  Hemizonia congesta subsp. luzulifolia John H. Thomas 1959-8-22 8078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH873  Hemizonia congesta subsp. luzulifolia John Hunter Thomas 1988-8-21 24562 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH875  Hemizonia congesta subsp. luzulifolia John Hunter Thomas 1991-8-4 25078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD49786  Hemizonia congesta subsp. luzulifolia J. H. Thomas 1958-6-11 7228 San Mateo 4.3 miles due east of Belmont near Crystal Springs Reservoir. 89 Comment
  UC897724  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1935-9-21 35652 San Mateo Redwood City Comment
  CAS-BOT-BC313455  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1908-8-1 s.n. San Mateo Summit Crystal Springs-Belmont Road Comment
  CAS-BOT-BC314933  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1908-8-20 s.n. San Mateo Near causeway between Cr. Srp. Lakes Comment
  CAS-BOT-BC314951  Hemizonia congesta subsp. luzulifolia Alice Eastwood 1919-9-1 s.n. San Mateo San Mateo Comment
  SEINET6205044  Hemizonia corymbosa L. S. Rose 1965-1 65100 San Mateo Skyline Blvd & Halt Moon Bay Rd Comment
  RSA0001284  Hemizonia grandiflora L. R. Abrams 1902-5-11 2446 San Mateo Crystal Springs. Comment
  POM53591  Hemizonia luzulifolia C. F. Baker 1903-6-30 3350 San Mateo Crystal Springs Comment
  POM360313  Hemizonia luzulifolia D. D. Keck 1931-10-5 1277 San Mateo Between Woodside and Crystal Springs Lake. Comment
  RSA81560  Hemizonia luzulifolia James I. McMurphy 1908-8-20 s.n. San Mateo Near causeway, between lakes, Crystal Springs Reservoir. Comment
  SEINET11848430  Hemizonia luzulifolia E. A. Purer 1933-1 5398 San Mateo Bayshore Highway Comment
  POM223640  Hemizonia luzulifolia subsp. rudis L. S. Rose 1935-9-21 35652 San Mateo Redwood City. Comment
  RSA81634  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1908-08 s.n. San Mateo Summit of Crystal Springs-Belmont Road. Comment
  UCSB17224  Hesperevax sparsiflora Schulte, John 1963-4-14 San Mateo Top of Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  JROH881  Hesperevax sparsiflora var. sparsiflora John H. Thomas 1957-4-16 6648 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC310246  Hesperevax sparsiflora var. sparsiflora John H. Thomas 1974-4-11 17126 San Mateo To the SE of Canada Road and Edgewood Road. NW of Woodside 152 Comment
  CAS-BOT-BC310250  Hesperevax sparsiflora var. sparsiflora George Oberlander 1949-7-30 322 San Mateo San Francisco Watershed Reserve. On Sweeney Ridge Comment
  CAS-BOT-BC403869  Hesperocnide tenella Margaret A. Barry 1938-5-29 264 San Mateo Corte Madera Creek near Coal Mine Ridge Comment
  JROH4231  Hesperocnide tenella John Hunter Thomas 1981-5-5 20539 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC403864  Hesperocnide tenella Roxana S. Ferris 1921-3-20 2109 San Mateo Santa Cruz Mountain Peninsula. Pescadero Creek, 6 mi above Pescadero Comment
  CAS-BOT-BC176204  Hesperolinon congestum John H. Thomas 1961-5-14 9379 San Mateo Just north of dam on San Mateo Creek 121 Comment
  UC1187062  Hesperolinon congestum David D. Keck 1940-5-15 5035 San Mateo e side Upper Crystal Springs Lake 100 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
  JROH2922  Hesperolinon micranthum John H. Thomas 1963-5-15 10093 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2923  Hesperolinon micranthum John H. Thomas 1963-5-15 10093 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2935  Hesperolinon micranthum John Hunter Thomas 1983-6-29 22707 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC148464  Heteromeles arbutifolia John H. Thomas 1971-5-2 15865 San Mateo Near intersection of Canada and Edgewater Roads. About 4 miles SW of center of Redwood City. 304 Comment
  CAS-BOT-BC148469  Heteromeles arbutifolia Walter Knight; Irja Knight 1965-4-11 1001 San Mateo Guadalupe Road - San Bruno Mountain Comment
  HSC23976  Heteromeles arbutifolia Mary Katherine Wicksten 1971-6-29 136 San Mateo Huddart Park, along Zweirlein Trail Comment
  JROH3675  Heteromeles arbutifolia John H. Thomas 1958-11-22 7504 San Mateo Jasper Ridge Biological Preserve, Stanford University. North central portion of ridge Comment
  SD37681  Heteromeles arbutifolia Edith A. Purer 1932-7-18 4002 San Mateo King's Mountain Comment
  UC860403  Heteromeles arbutifolia Lewis S. Rose 1937-10-31 37726 San Mateo hills w Tanforan 91 Comment
  CAS-BOT-BC310767  Heterotheca sessiliflora subsp. echioides Lewis S. Rose 1966-8-20 66087 San Mateo San Bruno Mountain, Summit 365 Comment
  CAS-BOT-BC420717  Heuchera micrantha Elizabeth McClintock 1972-5-10 s.n. San Mateo San Bruno Mountain, rocky slope just below parking lot, summit of mountain Comment
  CAS-BOT-BC420898  Heuchera micrantha var. erubescens L. S. Rose 1895-6-6 s.n. San Mateo Pescadero Creek near Iverson's 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-BC424380  Heuchera micrantha var. hartwegii W. R. Dudley 1893-5-27 s.n. San Mateo Redwoods near top of Kings Mountain Comment
  RSA0066088  Heuchera pilosissima John H. Thomas 1961-5-7 9283 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  POM207955  Hierochloe occidentalis C. F. Baker 1902-1-15 247 San Mateo West side of King's Mountain Comment
  RSA187345  Hierochloe occidentalis John H. Thomas 1954-4-3 3820 San Mateo Along San Gregorio Creek about 1.5 miles west of La Honda. 107 Comment
  CAS-BOT-BC55443  Hirschfeldia incana J. H. Thomas 1963-8-4 10234 San Mateo About 2.5 miles inland from San Gregorio along the highway. Comment
  CAS-BOT-BC55434  Hirschfeldia incana Ira L. Wiggins 1975-8-5 22174 San Mateo Bed of San Francisquito Creek, ca. 100 m above Pope Street bridge, both sides of Santa Clara--San Mateo line. Comment
  CAS-BOT-BC55435  Hirschfeldia incana Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountains. Lower part of Colma Canyon. Comment
  CAS-BOT-BC55439  Hirschfeldia incana Saichi Kawahara 1968-6-15 440 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1. 4 Comment
  UC38606  Holcus lanatus Michener and Bioletti 1893-6-15 120 San Mateo Baden Comment
  UCR121583  Holcus lanatus George K. Helmkamp, E. A. Helmkamp 1999-6-28 4984 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  CDA2181  Holcus lanatus C. M. Sill 1960-1-15 San Mateo Plath Nursery, Pescadero. 0 Comment
  SEINET10591390  Holcus lanatus Delzie Demaree 1933-6-12 Demaree 10374 San Mateo Bader Station. S. San Francisco. Small bottom. Comment
  HSC24044  Holodiscus discolor Mary Katherine Wicksten 1971-6-17 11 San Mateo Huddart Park. Comment
  UC311487  Holodiscus discolor A. D. E. Elmer Jun 1903 4274 San Mateo San Mateo Comment
  UCR121543  Holodiscus discolor George K. Helmkamp, E. A. Helmkamp 1999-6-28 4973 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  CAS-BOT-BC150066  Holodiscus discolor var. discolor Lucile Roush 1918-3-31 s.n. San Mateo Sierra Morena Comment
  RSA582071  Hordeum D. D. Keck 1932-4-29 1449 San Mateo Redwood City. Fields near the San Francisco Bay salt marshes Comment
  RSA0034585  Hordeum brachyantherum D. D. Keck 1932-5-6 1465 San Mateo Belmont. Comment
  CAS-BOT-BC284676  Hordeum brachyantherum subsp. brachyantherum Peter H. Raven 1950-6-3 2214 San Mateo Along Millbrae Ave., Millbrae 60 Comment
  CAS-BOT-BC285149  Hordeum marinum subsp. gussoneanum P. R. Hichborn 1920-5-18 236 San Mateo Santa Cruz Mountain Peninsula. Woodside Comment
  RSA123427  Hordeum murinum subsp. glaucum N. K. Carlson 1935-6-21 75 San Mateo Ridge between Oil and Stale Creeks 671 Comment
  CAS-BOT-BC173821  Hordeum murinum subsp. leporinum Peter Rubtzoff 1977-4-14 8944 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In area of uppermost part of East Fork Colma Creek, at the northwest corner of Fog Forest. Comment
  CAS-BOT-BC289457  Hordeum murinum subsp. leporinum John H. Thomas 1963-5-20 10152 San Mateo Ano Nuevo Island about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  JROH5257  Hordeum murinum subsp. leporinum John H. Thomas 1975-4-18 17783 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5261  Hordeum murinum subsp. leporinum John Rawlings 2013-3-24 1125 San Mateo Jasper Ridge Biological Preserve, Stanford University; grassy verge of Rd C at Rd D intersection 158 Comment
  RSA181231  Hordeum murinum subsp. leporinum John H. Thomas 1963-5-20 10152 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. 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-BC271359  Hordeum vulgare George Oberlander 1950-6-3 1041 San Mateo Upper Crystal Spr. Lake, San Francisco Watershed Reserve Comment
  CAS-BOT-BC271400  Hordeum vulgare John H. Thomas 1974-4-11 17123 San Mateo Area to the SE of Canada Road and Edgewood Road, NW of Woodside 152 Comment
  CAS-BOT-BC143922  Horkelia cuneata var. sericea W. R. Dudley 1901-5-11 s.n. San Mateo Near Colma Comment
  CAS-BOT-BC144011  Horkelia marinensis James McMurphy 1909-6-13 s.n. San Mateo Hills back of Colma Comment
  SJSU2301  Hosackia gracilis C. W. Sharsmith 1950-4-16 6630 San Mateo near Pescadero Point, Pescadero Comment
  UCD128238  Hydrocotyle sibthorpioides O. M. Scott and Sons 1950-4-10 s.n. San Mateo San Mateo. Comment
  CAS-BOT-BC411331  Hypericum canadense Vern Yadon 1994-7-8 s.n. San Mateo East of highway 1, common in two places, several acres. South of gazon Cr. and north of Ano Nuevo. Southern San Mateo County Comment
  CAS-BOT-BC311390  Hypochaeris glabra J. H. Thomas 1964-4-30 10338 San Mateo Near intersection of El Camino Real and F St., Colma Comment
  CAS-BOT-BC311396  Hypochaeris glabra Fred Hemphill 1973-5-6 835 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH932  Hypochaeris radicata John Hunter Thomas 1981-7-24 20733 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1598591  Hypochaeris radicata A. D. E. Elmer 1903-4-1 4861 San Mateo Lake San Andreas Comment
  UCR121563  Hypochaeris radicata George K. Helmkamp, E. A. Helmkamp 1999-6-28 4968 San Mateo Coast Range; Santa Cruz Mtns, Sky Londa; junction of Calif. Hwy 84 and Calif. Hwy 35, 5 mi south of central Redwood City 457 Comment
  CAS-BOT-BC311487  Hypochaeris radicata W. R. Dudley 1906-6-10 s.n. San Mateo Santa Cruz Mountain Peninsula. So. Cahill Ridge Comment
  JROH929  Hypochaeris radicata John H. Thomas 1974-5-19 17383 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10560665  Hystrix californica Peter H. Raven 1967-6-25 Raven 21418 San Mateo Pescadera Road 2.8 mi SW of Alpine Road, borders of coniferous forest. Comment
  OBI33307  Ilex aquifolium Marcia Meissner 1965-5-7 5 San Mateo Growing in garden at 139 Scenic Dr., Redwood City Comment
  CAS-BOT-BC133651  Iris longipetala Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo Slope above Hillside Blvd., South San Francisco Comment
  CAS-BOT-BC133661  Iris longipetala George Oberlander 1950-4-2 587 San Mateo San Andreas Lake Comment
  CAS-BOT-BC133673  Iris longipetala Javier Penalosa 1963-3-30 2707 San Mateo North of Randolph Drive at Hillside Blvd. in SSF 91 Comment
  HSC13892  Iris longipetala L. S. Rose 1968-3-26 68009 San Mateo S base of San Bruno Mtns., S San Francisco 30 Comment
  SEINET5555919  Iris longipetala H. S. Gentry 1931-1 60 San Mateo Collected 2 miles W of San Bruno. Comment
  SEINET5883393 Image available Iris longipetala L. S. Rose 1964-1 64020 San Mateo S San Francisco, San Bruno Mtn, alt ca 200 ft Comment
  POM168923  Iris missouriensis C. F. Baker 1902-3-22 348 San Mateo South San Francisco. Comment
  RSA366831  Iris missouriensis Lewis S. Rose 1938-4-1 38111 San Mateo San Bruno Hills, above Visitacion Valley 61 Comment
  JROH4434  Iris pseudacorus John Hunter Thomas 1981-7-12 20693 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of lake Comment
  CAS-BOT-BC112626  Isolepis cernua E. B. Copeland 1903-6-15 3315 San Mateo Montara Point Comment
  SJSU15910  Isolepis cernua John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1735 San Mateo Bean Hollow bluff trail west of Hwy 1 south of Pescadero 8 Comment
  CAS-BOT-BC112610  Isolepis cernua John Hunter Thomas 1973-4-25 16689 San Mateo Stanford University Lands along Sand Hill Road near Whiskey Hill Road. Comment
  UCD49893  Isolepis cernua S. Galen Smith; Malcolm A. Nobs 1949-8-25 1565 San Mateo Marshes at Sharp Park, San Mateo County. Comment
  POM223675  Jaumea carnosa L. S. Rose 1935-8-13 35566 San Mateo Salada. Comment
  UC1192236  Jaumea carnosa Herbert L. Mason 1949-7-7 14033 San Mateo marshes at mouth Pescadero Creek Comment
  UCD133403  Jaumea carnosa Malcolm A. Nobs; S. Galen Smith 1949-8-26 1598 San Mateo Pescadero Creek. Comment
  JROH2774  Juglans hindsii John H. Thomas 1980-11-18 20174 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA796693  Juncus bufonius Peter Rubtzoff 1977-6-21 9066 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  POM290139  Juncus bufonius var. congestus Lyman Benson 1930-5-26 2145 San Mateo Stanford University. Lake Searsville. 152 Comment
  JROH4456  Juncus bufonius var. occidentalis Arthur Spiegler 1952-5-10 81 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD164602  Juncus effusus subsp. pacificus Peter Rubtzoff; Roman Gankin 1975-9-11 8373 San Mateo San Bruno Mountains.'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  RSA786664  Juncus effusus var. pacificus Peter Rubtzoff, Roman Gankin 1975-9-11 8373 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  UC1101029  Juncus hesperius Herbert L. Mason and Verne Grant 1946-8-28 13088 San Mateo s of San Francisco (on Santa Cruz-Daly City Road #5) Comment
  UC652558  Juncus lescurii Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9289 San Mateo Ano Nuevo Point Comment
  UCSC007263  Juncus lescurii Randall Morgan 1987-4-29 s.n. San Mateo Ravine in 1st big gorge north of Comment
  JROH4487  Juncus occidentalis John Hunter Thomas 1981-5-5 20541 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4491  Juncus occidentalis John Hunter Thomas 1985-5-21 23666 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA368314  Juncus patens J. Doty 1969-3-26 599 San Mateo San Mateo County: 100 yards E of jct Hwy 35 & 92, near summit of Caost Range, San Francisco Peninsula. Comment
  SD260865  Juncus phaeocephalus Peter Rubtzoff 1976-6-30 8706 San Mateo Central Coast: San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; westernmost part of the area on slope across fence. Dirt roadside near a marsh. 182 Comment
  UC1601807  Juncus phaeocephalus J. Burtt Davy 1893-6-17 751 San Mateo Salt Marsh Belmont Comment
  UCR280164  Juncus phaeocephalus Peter Rubtzoff, Roman Gankin 1976-6-30 8702 San Mateo Central Coast, San Bruno Mountains. 'Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; westernmost part of the area on slope across fence 220 Comment
  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-BC210054  Juncus phaeocephalus Peter Rubtzoff 1976-6-30 8706 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-BC210072  Juncus phaeocephalus Peter Rubtzoff; Roman Gankin 1975-9-11 s.n. San Mateo Pond NW of and across odl Guadalupe Road from Saddle area (which is located on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC227614  Juncus phaeocephalus Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1989-6-3 s.n. San Mateo San Bruno Mountains. Shearwater 22 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
  RSA783799  Juncus phaeocephalus var. paniculatus Peter Rubtzoff 1978-8-17 9259 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  SJSU9859  Juncus tenuis Roberta Sears 1968-5-25 81 San Mateo Woodside, 2 mi NNW of Searsville Lake Comment
  JROH4508  Juncus xiphioides John H. Thomas 1974-4-25 17195 San Mateo Jasper Ridge Biological Preserve, Stanford University. Top of ridge. Comment
  POM347043  Koeleria macrantha Lyman Benson 1935-5-5 6535 San Mateo Lake Searsville; Santa Cruz Mt. Range 152 Comment
  RSA100995  Koeleria macrantha G. Oberlander 1950-4-23 914 San Mateo Sweeney Ridge, San Francisco Watershed Reserve Comment
  RSA87125  Koeleria macrantha D. D. Keck 1932-5-6 1476 San Mateo Above Millbrae Highlands Comment
  CAS-BOT-BC273732  Koeleria pyramidata Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  SEINET12317274  Lachnagrostis filiformis H. E. Wieser 1932-1 s.n. San Mateo Black Mtn road, Hillsborough Hills, near Burlingame Comment
  JROH945  Lactuca saligna John H. Thomas 1974-6-30 17459 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC340468  Lactuca saligna John Thomas Howell 1930-11-9 5711 San Mateo On the Skyline Boulevard in the hills above Millbrae Comment
  JROH950  Lactuca serriola John H. Thomas 1971-8-5 16012 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH954  Lactuca virosa Toni Corelli 2006-8-8 315 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along causeway on trail 13, west of Leonard's bridge. 106 Comment
  CAS-BOT-BC341638  Lagophylla ramosissima David D. Keck; W. M. Heusi 1929-10-24 500 San Mateo Summit of Coast Range, Alpine Creek Road 765 Comment
  JROH2778  Lamium amplexicaule H. J. Dengler 1975-3-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; by road below Searsville Dam Comment
  SD99497  Lamium amplexicaule Ira L. Wiggins 1971-4-27 21108 San Mateo Menolo Park, Vacant Lot Sw corner of Woodland Ave and Pope S. Comment
  UCSC003372  Lasthenia Randall Morgan 2001-5-9 3726 San Mateo Bean Hollow State Beach, San Mateo County Comment
  CAS-BOT-BC339061  Lasthenia californica V. F. Hesse 1964-5-26 3205 San Mateo Pigeon Point 4 Comment
  CAS-BOT-BC339073  Lasthenia californica A. D. E. Elmer 1903-4-1 4738 San Mateo San Bruno Hills Comment
  CAS-BOT-BC346776  Lasthenia californica John H. Thomas 1955-5-6 5002 San Mateo San Mateo; Jasper Ridge about 3.5 miles southwest of Stanford University. Comment
  CHSC276  Lasthenia californica J. Turner 1930-5-2 San Mateo Moss Beach. Comment
  CAS-BOT-BC339051  Lasthenia californica Alex Briggs 1922-5-27 s.n. San Mateo Mirimar [Miramar] Comment
  CAS-BOT-BC339089  Lasthenia californica James McMurphy 1907-5-19 s.n. San Mateo Near Lower Pond, Coal Mine Ridge Comment
  JEPS89767  Lasthenia californica subsp. californica Dean W. Taylor 1989-3-30 10188 San Mateo ridge separating Guadalupe Valley from Vistacion Valley (Right-of way of easternmost set of PG&E high-voltage powerlines crossing crest of ne ridge of San Bruno Mountain); Santa Cruz Mountains, San Bruno Mountain Comment
  JROH978  Lasthenia californica subsp. californica John Hunter Thomas 1981-5-8 20563 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS24276  Lasthenia glabrata subsp. glabrata J. H. Thomas 1954-4-2 3793 San Mateo 1.5 mi e of center Redwood City Comment
  POM49821  Lasthenia glabrata subsp. glabrata L. R. Abrams 1902-5-11 2456 San Mateo Crystal Springs. Comment
  CAS-BOT-BC355538  Lasthenia glabrata var. glabrata John H. Thomas 1997-4-11 17135 San Mateo to the SE of Canada Road and Edgewood Road; NW of Woodside 152 Comment
  SEINET7076116  Lasthenia minor A. G. Vestal 1955-5-31 s.n. San Mateo Pescadero Beach [Pescadero State Beach]. (NAD 27; 37.2631? deg. North Latitude, 122.4118? deg. West Longitude, UTM Zone 10, 552155mE, 4124015mN). [GPS Coordinate: WGS84/NAD83]. Comment
  UCR121579  Lasthenia minor George K. Helmkamp, E. A. Helmkamp 1999-6-28 5013 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  CAS-BOT-BC370795  Lasthenia platycarpha David D. Keck 1932-3-24 1402 San Mateo Redwood City. At border of San Francisco Bay. Comment
  CHSC20641  Lathyrus jepsonii var. californicus Robert A. Schlising; S. Banwar 1963-3-15 2447 San Mateo Along King's Mtn. Road southeast of entrance to Huddart Park. Comment
  JEPS22020  Lathyrus littoralis G. Thomas Robbins with S. Galen Smith 1958-6-9 3859 San Mateo 0.5 mi n bridge crossing Pescadero Creek (about 0.25 mi w of State Highway 1) Comment
  RSA10272  Lathyrus littoralis H. A. Barker 1927-5-14 672 San Mateo North of Half Moon Bay. Comment
  SEINET955880  Lathyrus littoralis Ira L. Wiggins 1946-1 11201 San Mateo Sand dunes just above extreme high tide level, Half Moon Bay about 3 miles N. of Town. Comment
  SFV1827  Lathyrus littoralis W. R. Russell 1961-6-5 s. n. San Mateo North end of Pacifica (formerly Sharp Park), sand hills about 1 block west of business district. Comment
  UCD106381  Lathyrus littoralis W. R. Russell 1961-6-5 s.n. San Mateo 1 block west of business district, north end of Pacifica (formerly Sharp Park). Comment
  JEPS55372  Lathyrus vestitus var. vestitus R. L. Pendleton 1907-4-20 626 San Mateo Colma 182 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
  CAS-BOT-BC323158  Layia chrysanthemoides David D. Keck 1932-4-29 1450 San Mateo Redwood City. Comment
  CAS-BOT-BC323157  Layia chrysanthemoides David D. Keck 1932-5-6 1488 San Mateo 4 miles W of Burlingame on Skyline Boulevard. Comment
  POM298210  Layia chrysanthemoides D. D. Keck 1932-5-6 1488 San Mateo 4 miles west of Burlingame, on the Skyline Blvd. Comment
  CAS-BOT-BC327459  Layia hieracioides David D. Keck; Wm. M. Hiesey 1940-6-1 s.n. [likely 5166 ] San Mateo Skyline Boulevard opposite north end of Lake San Andreas 137 Comment
  CAS-BOT-BC327504  Layia hieracioides J. H. Thomas 1958-6-11 7223 San Mateo About 4.3 miles due E of Belmont near Crystal Springs Reservoir. 91 Comment
  JROH6201  Layia hieracioides John Rawlings 2014-5-6 1230 San Mateo Jasper Ridge Biological Preserve, Stanford University; on the top of Trevor's Knoll, about 70 m north of Trail 10. 181 Comment
  JROH983  Layia hieracioides John H. Thomas 1958-5-10 7158 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH990  Layia hieracioides John Hunter Thomas 1983-4-21 21636 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC327464  Layia hieracioides John Thomas Howell 1944-6-11 19594 San Mateo 1.5 miles N of Felton Comment
  CAS-BOT-BC327481  Layia hieracioides Peter H. Raven 1950-4-16 1794 San Mateo Summit ridge of San Bruno Mountains 243 Comment
  SEINET8735276 Image available Layia nemorosa Lewis S. Rose 1935-1 35149 San Mateo Burlingame Comment
  CAS-BOT-BC382096  Layia platyglossa John H. Thomas 1961-5-7 9266 San Mateo San Bruno Mountainin northern part of county. 396 Comment
  JEPS121448  Layia platyglossa Adam C. Schneider with C. Matt Guilliams 2013-3-9 25 San Mateo Crystal Springs Reservoir Comment
  JEPS35780  Layia platyglossa V. F. Hesse 1964-5-26 3208 San Mateo Pigeon Point Comment
  JROH1000  Layia platyglossa John Hunter Thomas 1981-4-23 20476 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH994  Layia platyglossa John H. Thomas 1966-4-21 11564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM361731  Layia platyglossa Glenn A. Gorelick 1967-4-15 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  UC204134  Layia platyglossa A. D. E. Elmer 1903-4-1 5022 San Mateo Crystal Springs Lake Comment
  UCSB18707  Layia platyglossa Schulte, John 1963-4-28 San Mateo Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  SEINET11811325  Layia platyglossa L. K. Henry 1956-1 s.n. San Mateo along Pacific Ocean at Pigeon Point Lighthouse on Rt. 1 Comment
  POM54371  Layia platyglossa subsp. platyglossa A. D. E. Elmer 1903-04 5022 San Mateo Crystal Springs Lake. Comment
  POM88088  Layia platyglossa subsp. platyglossa L. R. Abrams 1902-5-11 2442 San Mateo Crystal Springs Lake. Comment
  CDA987  Leontodon taraxacoides D. G. Kelch, B. G. Baldwin, Sue Bainbridge, Abigail Moore 2005-6-21 5 .37 San Mateo S.F. Water District land, near Spring Valley. NE corner Pilarcitos Lake. Comment
  CAS-BOT-BC221534  Lepechinia calycina D. E. Breedlove 1974-5-13 36206 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  RSA229653  Lepechinia calycina Andrew R. Moldenke, Harold N. Moldenke 1971-4-11 25184 San Mateo Jasper Ridge. Comment
  RSA116666  Lepidium didymum H. L. Mason 1921-5-29 s.n. San Mateo Pebble Beach near Pescadero. Comment
  CAS-BOT-BC89218  Lepidium draba J. H. Thomas 1956-4-27 4920 San Mateo Along Bayshore Highway, east of San Carlos. Comment
  JROH1537  Lepidium latifolium John Rawlings, Ann Lambrecht 2009-7-3 0923 San Mateo Jasper Ridge Biological Preserve, Stanford University; north bank of Bear Creek 82 Comment
  CAS-BOT-BC12753  Lepidium oxycarpum David D. Keck 1932-3-24 1401 San Mateo Redwood City. At border of San Francisco Bay. Comment
  JROH1560  Lepidium strictum John Hunter Thomas 1978-4-25 19154 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1561  Lepidium strictum John Hunter Thomas 1981-4-7 20296 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab 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-BC12949  Lepidium strictum Walter Knight; Irja Knight 1967-5-16 s.n. San Mateo San Bruno Mountains. Randolph Avenue. South San Francisco. Comment
  CAS-BOT-BC12950  Lepidium strictum Walter Knight; Irja Knight 1965-5-16 1201 San Mateo San Bruno Mountains. Crocker Avenue. Comment
  POM216309  Lepidium strictum D. D. Keck 1933-5-11 2301 San Mateo Montara Summit, Montara Mountain. Comment
  CAS-BOT-BC226595  Leptosiphon ambiguus John H. Thomas 1971-5-2 15815 San Mateo Near intersection of Canada Road and Edgewater [Edgewood] Road, about three miles westward from Redwood City 152 Comment
  CAS-BOT-BC226608  Leptosiphon ambiguus Arthur Spiegler 1952-4-26 27 San Mateo 4 miles from Woodside on Canada Road to Skyline Boulevard Comment
  RSA10321  Leptosiphon androsaceus H. A. Barker 1926-4-25 547 San Mateo Kings Mt. Comment
  UC106861 Image available Leptosiphon croceus Alice Eastwood 1901-5-10 San Mateo Blenheim Comment
  JROH3185  Leptosiphon liniflorus Elmer I. Applegate 1895-5-11 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Comment
  UCSB12382  Leptosiphon liniflorus Dearing, Hugh; Dearing, Margaret 1933-5-14 San Mateo Skyline Drive, so. of San Francisco Comment
  SD38813  Leptosiphon parviflorus Edith A. Purer 1933-4-25 3640 San Mateo Comment
  SD38815  Leptosiphon parviflorus Miss Cummings, McCallum 1933-4-26 3714 San Mateo Hills back of Stanford Campus. Comment
  SJSU8745  Leptospermum laevigatum A. M. Jesse 1979-4-21 San Mateo Sawyer Rd, Crystal Springs Reservoir Comment
  CAS-BOT-BC324054  Lessingia arachnoidea John Thomas Howell 1927-5-10 2388 San Mateo Crystal Springs Lake 213 Comment
  CAS-BOT-BC324059  Lessingia arachnoidea Lewis S. Rose 1954-8-29 54111 San Mateo East side of Crystal Springs Lake Comment
  CAS-BOT-BC324064  Lessingia arachnoidea David D. Keck 1931-10-5 1280 San Mateo Crystal Springs Lake, east side. Comment
  CAS-BOT-BC324069  Lessingia arachnoidea J. H. Thomas 1958-9-15 7473 San Mateo 0.4 miles north of dam on San Mateo Creek along Skyline Blvd. 91 Comment
  CDA8165  Lessingia arachnoidea M. Knudsen 1982-7-28 San Mateo Crystal Springs Reservoir, just below the dam. 0 Comment
  JEPS88045  Lessingia arachnoidea S. Markos 1996-7-28 126 San Mateo 200 yds S of Junction with Golf Course Rd. and Skyline Blvd.; Crystal Springs Reservoir Comment
  OBI15796  Lessingia arachnoidea Lewis S. Rose 1964-9-9 64075 San Mateo Crystal Srpings Lakes; W of San Mateo 244 Comment
  POM263773  Lessingia arachnoidea L. S. Rose 1941-9-6 41434 San Mateo San Mateo Canyon 90 Comment
  POM55553  Lessingia arachnoidea C. F. Baker 1902-09 s.n. San Mateo Crystal Springs Lake. Comment
  RSA181929  Lessingia arachnoidea Willard Spence 1960-7-2 555 San Mateo Route 5, Crystal Springs Lake Comment
  NY180564  Lessingia bakeri C. F. Baker 1902-10-20 1834 San Mateo Searsville Comment
  CAS-BOT-BC324072  Lessingia germanorum Elizabeth McClintock; Paul Reeberg 1989-8-19 s.n. San Mateo San Bruno Mountains, Reservoir Hill. 137 Comment
  JROH1009  Lessingia glandulifera var. glandulifera John H. Thomas 1963-5-15 10091 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC324176  Lessingia hololeuca W. R. Dudley 1897-11-15 s.n. San Mateo Los Troncos Road above Saloon Comment
  HSC23932  Lessingia hololeuca Mary Katherine Wicksten 1971-8-20 205 San Mateo Huddart Park below Redwood Shelter. Comment
  RSA169310  Lessingia hololeuca L. S. Rose 1964-9-5 s.n. San Mateo Emerald Lake, W of Redwood City. 244 Comment
  RSA608390  Lessingia hololeuca L. S. Rose 1936-9-19 s.n. San Mateo Crystal Springs Lake 152 Comment
  UC73895  Lessingia hololeuca J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  CAS-BOT-BC283697  Leymus condensatus David L. Morgan 1955-8-1 s.n. San Mateo 1 mile N of Santa Cruz County line on Highway 1 22 Comment
  CDA32468  Leymus condensatus T. C. Fuller, I. J. Campbell 1959-1 2595 B San Mateo F. Stelle Ranch, Ano Nuevo Point 0 Comment
  POM219276  Leymus triticoides H. F. Copeland 1929-7-4 1241 San Mateo La Honda Grade. Comment
  UC37061  Leymus triticoides unknown San Mateo San Mateo Comment
  JEPS17501  Ligusticum apiifolium R. L. Pendleton 1907-4-20 627 San Mateo Colma 182 Comment
  CAS-BOT-BC451673  Lilaea scilloides H. L. Mason 1922-3-28 s.n. San Mateo Pigeon Pt. Comment
  CAS-BOT-BC45870  Limnanthes douglasii var. sulphurea William Anderson 1966-4-22 n.s San Mateo Canyon Road Comment
  RSA644976  Limnanthes macounii Rudolf Schmid 2000-2-24 2000 -2 San Mateo Aong E side of Hwy 1 S of Moss Beach and directly opposite Half Moon Bay airport. 10 Comment
  HSC97165  Limnanthes macounii T. W. Henrich 2004-4-21 San Mateo Moss Beach; cultivated field on Cabrillo Ranch property, adjacent to Hwy 1, and immediately east of Half Moon Bay Airport. Comment
  JEPS9660  Limosella acaulis Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9294 San Mateo Ano Nuevo Point Comment
  JROH4053  Limosella acaulis John Hunter Thomas 1980-11-12 20166 San Mateo Jasper Ridge Biological Preserve, Stanford University. Ground of delta Comment
  JROH5853  Limosella acaulis Herb Dengler 1982-11-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; beach below old hamburger stand, Searsville Lake Comment
  JEPS58174  Linanthus ambiguus W. L. Jepson 1914-3-22 5731 San Mateo vicinity San Francisco Bay; Redwood City Comment
  UC75208  Linanthus ambiguus C. F. Baker 1902-5-4 753 San Mateo Woodside Comment
  UCSC005674  Linanthus parviflorus Randall Morgan 1994-4-2 2172 San Mateo Jasper Ridge Comment
  SEINET12279094  Linanthus pharnaceoides M. T. Doutt 1931-1 418 San Mateo Skyline Blvd Comment
  RSA217987  Linaria canadensis var. texana Phillip Wheeler 1965-5-11 s.n. San Mateo West ravine of Pig Ranch Canyon. Comment
  POM138877  Linum angustifolium Copeland 1903-6-9 3307 San Mateo Montara Point. Comment
  JROH2940  Linum bienne Ann Lambrecht 2002-5-18 2 San Mateo Jasper Ridge Biological Preserve, Stanford University; Sand Hill Road fence line Comment
  CAS-BOT-BC389735  Lithocarpus densiflorus J. Lovelle 1973-7-29 26 San Mateo Pescadero Cr. Comment
  CAS-BOT-BC36026  Lithocarpus densiflorus var. densiflorus Ira L. Wiggins 1925-4-1 1661 San Mateo On Kings Mountain Road one mile above Woodise just above the first Pseudotsuga menziesii on the right edge of the road Comment
  RSA12769  Lithocarpus densiflorus var. densiflorus Carl B. Wolf 1934-11-12 6241 San Mateo Alpine Creek Rd. from La Honda to Pescadero, about 2 mi. from La Honda, Santa Cruz Mts. 305 Comment
  CAS-BOT-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
  JROH3887  Lithophragma affine John H. Thomas 1971-4-3 15746 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3890  Lithophragma affine John Hunter Thomas 1981-4-23 20468 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  CAS-BOT-BC430770  Lithophragma affine W. R. Dudley 1900-3-18 s.n. San Mateo Jersey Farm near head of San Bruno Creek Comment
  JROH3891  Lithophragma affine John Hunter Thomas 1983-4-5 21318 San Mateo Jasper Ridge Biological Preserve, Stanford University; below rattlesnake rock Comment
  JROH3899  Lithophragma heterophyllum John Hunter Thomas 1986-4-22 23973 San Mateo Jasper Ridge Biological Preserve, Stanford University. Wooded slope above east arm of Searsville Lake Comment
  CAS-BOT-BC342307  Logfia filaginoides George Oberlander 1950-4-23 767 San Mateo San Francisco Watershed Reserve. Top of Cahill Ridge Comment
  CAS-BOT-BC342471  Logfia gallica George Oberlander 1950-4-16 705 San Mateo San Francisco Watershed Reserve. Near San Andreas Lake Comment
  UCD66213  Lolium multiflorum Beecher Crampton 1962-6-11 6508 San Mateo Sharp Park, suburb of Pacifica, Mori's Point Road. Comment
  CAS-BOT-BC269126  Lolium perenne George Oberlander 1949-7-25 249 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  UC75212  Lomatium caruifolium var. caruifolium unknown 1902-4-8 2751 San Mateo San Andreas Lake Comment
  SJSU10974  Lomatium dasycarpum G. I. Tourtlotte 1968-3-16 San Mateo by Sawyer Ridge near Crystal Springs Reservoir Comment
  JEPS17132  Lomatium dasycarpum subsp. dasycarpum W. L. Jepson 1914-3-22 5737 b San Mateo Redwood City Comment
  POM132620  Lomatium dasycarpum subsp. dasycarpum C. F. Baker 1902-4-6 461 San Mateo Crystal Springs Lake. Comment
  RSA15253  Lomatium dasycarpum subsp. dasycarpum C. B. Wolf 1927-2-19 214 San Mateo Spring Valley, on Belmont to Halfmoon Bay road Comment
  JROH273  Lomatium macrocarpum John H. Thomas 1956-4-7 5625 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA119854  Lomatium macrocarpum W. R. Dudley 1894-4-21 s.n. San Mateo San Mateo Ravine below dam Comment
  CAS-BOT-BC240581  Lonicera hispidula Ned Cahill 1974-5-13 242 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC240594  Lonicera hispidula W. R. Dudley 1896-9-15 s.n. San Mateo Santa Cruz Mountain Peninsula. El Corte Madera Creek, Santa Cruz Mts. Comment
  JROH1656  Lonicera hispidula John Hunter Thomas 1978-7-2 19247 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SFV3590  Lonicera hispidula K. A. Wilson 1961-6-24 1237 San Mateo Santa Cruz Mountains Skyline Blvd. (California Highway 5). 625 Comment
  CAS-BOT-BC243968  Lonicera involucrata var. ledebourii A. D. E. Elmer 1903-6-1 4272 San Mateo Lake San Andreas Comment
  UC1321328  Lotus benthamii R. F. Hoover 1964-9-10 9290 San Mateo between Pedro Point and Montara; Devils Slide Comment
  UC311102  Lotus scoparius A. D. E. Elmer 1903-6-1 4447 San Mateo Belmont Comment
  RSA18307  Lotus scoparius var. scoparius Carl B. Wolf 1927-5-31 409 San Mateo North end of Searsville Lake. Comment
  JROH3078  Ludwigia peploides subsp. peploides John Hunter Thomas 1981-7-12 20706 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3081  Ludwigia peploides subsp. peploides M. Whitley 1990-5-28 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; by the floats 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-BC60247  Lunaria annua Alexander Locke 1963-5-19 31 San Mateo Belmont. 714 Alameda de los Pulgas. Comment
  UC1129419  Lupinus affinis H. S. Yates 1935-5-8 5209 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  UC127029  Lupinus affinis Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  RSA0065265  Lupinus albifrons Daisie Huang 2006-8-6 06080604 San Mateo Roadside next to Crystal Springs Reservoir. 123 Comment
  UC82049  Lupinus albifrons C. F. Baker 1902-3 341 San Mateo Crystal Springs Lake Comment
  SEINET10488410  Lupinus albifrons Charles F. Baker 1902-5-4 Baker UMO 71685 San Mateo Crystal spring. Open sides of gulches, 9-18 dm high Comment
  CAS-BOT-BC195797  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-21 48466 San Mateo Highway 5 - C.S. Dam-Bridge, 0.5 miles south Comment
  CAS-BOT-BC195817  Lupinus albifrons var. albifrons Josephine D. Randall 1907-7-23 199 San Mateo Near Crystal Springs Lake Comment
  CAS-BOT-BC196113  Lupinus albifrons var. collinus John H. Thomas 1955-4-6 4833 San Mateo East facing slope of San Bruno Mountain just north of South San Francisco 91 Comment
  RSA800198  Lupinus albifrons var. collinus Robert F. Thorne, Percy C. Everett 1963-6-9 32209 San Mateo On top of San Bruno Mountain, near TV tower. 335 Comment
  CAS-BOT-BC27394  Lupinus apricus C. P. Smith 1908-3-30 1374 San Mateo Stanford University, Cedro Cottage Field. Comment
  CAS-BOT-BC196433  Lupinus arboreus John Thomas Howell 1933-4-9 10973 San Mateo 2 miles n. of Pigeon Pt. Comment
  UCR121555  Lupinus arboreus George K. Helmkamp, E. A. Helmkamp 1999-6-28 4989 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  UCR122975  Lupinus arboreus George K. Helmkamp, E. A. Helmkamp 2001-6-2 6797 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
  UCSB12361  Lupinus arboreus Breedlove, Dennis 1961-6-18 San Mateo 3 miles south of road to Half Moon Bay, on U.S. 5 365 Comment
  SEINET10488460  Lupinus arboreus Didley 1906-6-10 DIDLEY s.n. San Mateo Santa cruz mountain peninsula. By road, s cabil ridge 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
  POM276478  Lupinus arboreus var. arboreus Lyman Benson 1930-6-14 2150 San Mateo San Gregorio. 30 Comment
  RSA91250  Lupinus arboreus var. arboreus Alice Eastwood, John T. Howell 1938-6-26 6077 San Mateo Crystal Springs Lake. Comment
  JROH5635  Lupinus bicolor John Rawlings 2014-5-28 1247 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Dennis Martin Site Marker near path to San Francisquito Creek crossing 77 Comment
  UC1303121  Lupinus bicolor James McMurphy 1911-4-22 San Mateo near Stanford University Stanford Park; , Stanford Park Comment
  CAS-BOT-BC215067  Lupinus chamissonis Walter & Irja Knight 1965-3-21 973 San Mateo Mouth of Colma Canyon Comment
  RSA212136  Lupinus densiflorus var. densiflorus L. S. Rose 1970-5-9 70038 San Mateo Chateau Drive near Skyline, Hillsborough. 91 Comment
  RSA0036527  Lupinus formosus Daisie Huang 2006-8-6 06080603 San Mateo Inside San Francisco Water Authority land. 288 Comment
  JROH2124  Lupinus latifolius var. latifolius John Hunter Thomas 1980-5-6 19921 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC127015  Lupinus latifolius var. latifolius J. Burtt Davy 1895-4-20 1085 San Mateo San Mateo Creek Comment
  SD37896  Lupinus latifolius var. latifolius Delzie Demaree 1932-4-9 8979 San Mateo Near entrance to [Gov.?] Ralph Estate Comment
  SBBG39518  Lupinus microcarpus var. densiflorus L. S. Rose 1970-5-9 70038 San Mateo Chateau Drive near Skyline, Hillsborough 91 Comment
  CHSC57381  Lupinus nanus Sandy Trimble 1987-4-13 12 San Mateo On s slope of Hwy 84, 8.1 mi w of Hwy 1 and 7.2 mi e of Hwy 35. 335 Comment
  JROH2126  Lupinus nanus John H. Thomas 1967-4-28 12723 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2128  Lupinus nanus John H. Thomas 1975-4-5 17716 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC15978  Lupinus nanus Ivar Tidestrom May 1894 San Mateo Comment
  SEINET10491013  Lupinus vallicola subsp. vallicola Dengler 1960-4-12 DENGLER 21 San Mateo Corolla deep blue and white; in grassland below chaparral, on dry, rocky, South-facing slope. Jasper ridge, stanford biological reserve. 122 Comment
  CDA9351  Lupinus variicolor M. Beyers, S. Serkanic 2013-3-3 1033 San Mateo South of the parking turn-out and east of Highway 1. 101 Comment
  JEPS23918  Lupinus variicolor W. R. Dudley 1899-5-14 San Mateo near Baden; Santa Cruz Peninsula, near Baden Comment
  SJSU2300  Lupinus variicolor C. W. Sharsmith 1950-4-16 6629 San Mateo near Pescadero Point near Pescadero Comment
  UC127021  Lupinus variicolor Alice Eastwood April 1896 San Mateo bet. Crystal Springs and Millbrae; bet. Crystal Springs and Millbrae Comment
  UC903067  Lupinus variicolor Ethel Crum 1934-4-29 1699 San Mateo 4 mi s Pescadero (open slope near ocean); s of Pescadero Comment
  RSA176707  Lupinus variicolor John H. Thomas 1964-6-28 10437 San Mateo Along highway 1 near Pedro Point. Comment
  SEINET10489102  Lupinus variicolor Smith 1948-4-20 Smith 48110 San Mateo Hwy 1. San pedro point, n grade. Comment
  JROH4527  Luzula comosa var. comosa John Hunter Thomas 1981-4-23 20485 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC441262  Luzula macrantha W. R. Dudley 1908-3-8 s.n. San Mateo Santa Cruz Mountain Peninsula: Coal Mine Ridge near Mud Lakes 335 Comment
  UC72371  Luzula subsessilis Harley P. Chandler 1901-3-15 805 San Mateo west of Colma Comment
  UC1099770  Luzula subsessilis Herbert L. Mason 1927-4-23 3686 San Mateo along road from La Honda to Pescadero Creek Comment
  JROH3365  Lysimachia arvensis John H. Thomas 1975-4-18 17787 b San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3375  Lysimachia minima John Hunter Thomas 1982-4-30 20883 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15932  Lysimachia minima Toni Corelli, John Rawlings 2016-4-29 1772 San Mateo Cascade Field along Atkinson Bluff Trail, north of Cascade Cr. Trail, in Ano Nuevo State Park 11 Comment
  CAS-BOT-BC290600  Lythrum Peter Rubtzoff 1987-8-26 9837 San Mateo San Bruno Mountain, Saddle area on N side of Guadalupe Canyon. Parkway west of Radio Road junction; northwestern part of the area along old Guadalupe Road. Comment
  SD39672  Lythrum hyssopifolia Edith A. Purer 1933-7-27 5366 San Mateo 2.0 miles south of Pigeon Point. Comment
  UC1190031  Lythrum hyssopifolia J. H. Thomas 1954-5-28 4242 San Mateo just n of South San Francisco (San Bruno Mountain); San Bruno Mountain 30 Comment
  RSA0011328  Lythrum hyssopifolia Jane Turner, Francis M. Ball 1962-7-7 1081 San Mateo Highway 1, ca. 10 miles N of Santa Cruz County line. Comment
  RSA0011332  Lythrum hyssopifolia W. R. Dudley 1906-6-12 s.n. San Mateo W of Tripp s store, Woodside; Santa Cruz Mt Peninsula. Comment
  JROH2955  Lythrum tribracteatum John Hunter Thomas 1981-7-12 20708 San Mateo Jasper Ridge Biological Preserve, Stanford University; on old beach Comment
  SD49787  Madia capitata J. H. Thomas 1959-8-16 8064 San Mateo 2.0 miles soputhwest of Pescadero. 60 Comment
  CAS-BOT-BC343909  Madia elegans Carl B. Wolf 1929-5-17 3713 San Mateo 1 mi. w. of Skyline Blvd. on Alpine Road 304 Comment
  CAS-BOT-BC343915  Madia elegans J. H. Thomas 1958-9-15 7475 San Mateo 0.4 miles north of dam on San Mateo Creek along Skyline Blvd. 91 Comment
  CAS-BOT-BC343904  Madia elegans Barrett Anderson 1986-8-12 3252 San Mateo Crystal Springs Rd at Skyline Blvd. 92 Comment
  JROH1040  Madia exigua John H. Thomas 1958-5-10 7141 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1041  Madia exigua John H. Thomas 1961-6-7 9531 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1049  Madia exigua John Hunter Thomas 1977-6-16 18779 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1055  Madia exigua John Hunter Thomas 1981-5-25 20625 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC344486  Madia exigua H. A. Dutton 1900-5-6 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside Comment
  CAS-BOT-BC343330  Madia gracilis Fred Hemphill 1973-5-14 815 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  POM298352  Madia gracilis D. D. Keck 1932-6-1 1787 San Mateo Above Woodside on the La Honda road, east slope of the Santa Cruz Mountains 305 Comment
  CAS-BOT-BC343325  Madia gracilis Gwendolan Newell 1914-6-18 s.n. San Mateo Raymonds ranch, Los Gatos 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
  CAS-BOT-BC345112  Madia sativa Philip C. Wheeler 1965-5-11 s.n. San Mateo San Bruno Mountain. Pig Ranch Ravine Comment
  CAS-BOT-BC345115  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-BC345122  Madia sativa Ira L. Wiggins 1929-7-4 3796 San Mateo Sea bluffs at Pescadero Beach Comment
  CAS-BOT-BC345136  Madia sativa LeRoy Abrams 1901-9-1 2227 San Mateo Menlo Park Comment
  HSC24008  Madia sativa Mary Katherine Wicksten 1971-6-15 21 San Mateo Huddart Park near horse ring Comment
  RSA176607  Madia sativa John H. Thomas 1961-8-27 9695 San Mateo Colma; open sandy field near intersection of El Camino Real and F Street 46 Comment
  CAS-BOT-BC345130  Madia sativa David D. Keck 1932-8-11 1744 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
  POM298334  Madia sativa D. D. Keck 1930-10-15 988 San Mateo SW of Woodside 457 Comment
  RSA175256  Maianthemum dilatatum Robert F. Thorne, Percy C. Everett 1963-6-9 32216 San Mateo On Kamchatka Point near TV tower on San Bruno Mountain. 335 Comment
  SD39133  Maianthemum racemosum subsp. amplexicaule Marie Cummings 1933-4-11 12 San Mateo Pescadero. Comment
  RSA407374  Maianthemum racemosum subsp. amplexicaule Lyman Benson 1928-4-21 95 San Mateo Stanford University, Mt. Range: Santa Cruz; River: San Francisquito Creek. 91 Comment
  CHSC13506  Maianthemum stellatum S. Villard 1974-4-28 7 San Mateo Found on King's Mt. Rd., ca. 1.5 mi w of Mounted Patrol Grounds, Woodside. 182 Comment
  JROH4714  Maianthemum stellatum John Hunter Thomas 1985-4-22 23545 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC203909  Malacothamnus aboriginum A. A. Heller 1901-7-13 s.n. San Mateo Spring Valley Lake Comment
  SEINET7247993  Malva nicaeensis Richard A. Dodge 1957-1 31 San Mateo Canyon in San Bruno City Limits, just south of Sneath Lane, between Junipero Serra Boulevard, and State Highway 5. 183 Comment
  POM59187  Marah oregana C. F. Baker 1902-4-4 450 San Mateo Crystal Springs Lake Comment
  UC25352  Marrubium vulgare Michener and Bioletti Sept. 1891 San Mateo San Bruno Road Comment
Read comments
Jul 2 2009
  SJSU15423  Matricaria chamomilla Toni Corelli 2011-8-25 706 San Mateo Ano Nuevo State Park, along Hwy. 1 south of main entrance 28 Comment
  JROH5783  Matricaria discoidea John Rawlings 2016-4-26 1758 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rd E near Trail 13. 105 Comment
  JROH615  Matricaria discoidea John H. Thomas 1965-5-12 10647 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2165  Medicago polymorpha John H. Thomas 1967-5-10 12863 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2175  Medicago polymorpha John Hunter Thomas 1988-6-2 24499 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA128987  Medicago polymorpha Peter H. Raven 1950-6-3 2203 San Mateo along Millbrae Ave., Millbrae. 61 Comment
  CAS-BOT-BC269470  Melica californica Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Above Hillside Blvd., South San Francisco Comment
  CAS-BOT-BC281409  Melica imperfecta W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Mountain Peninsula. S slope of Montara Mt Comment
  JROH5300  Melica imperfecta D. D. Davis 1903-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. North slope on Searsville Ridge. Comment
  JROH5301  Melica imperfecta John H. Thomas 1977-5-14 18609 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC264247  Melica torreyana Peter H. Raven 1950-6-3 2245 San Mateo Around San Andreas Lake Comment
  SD40028  Melilotus indicus Edith A. Purer 1933-7-27 5368 San Mateo Pigeon Point Comment
  JROH2797  Melissa officinalis John H. Thomas 1962-7-15 9919 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below dam Comment
  JROH2812  Mentha pulegium John Hunter Thomas 1979-9-9 19725 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of Searsville Lake Comment
  RSA177005  Mentha pulegium John H. Thomas 1964-11-29 10533 San Mateo Jasper Ridge Biological Experimantal Area, about 5 miles SW of Palo Alto; W end of Searsville Dam Comment
  UC1714386  Mentha pulegium U. S. Grant IV 1926-9-6 San Mateo King's Mt. 609 Comment
  JROH2805  Mentha pulegium David D. Keck 1939-7-17 5012 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake 115 Comment
  POM177324  Mercurialis annua L. R. Abrams, I. L. Wiggins, D. Abrams 1930-11-13 I 80 San Mateo Artichoke field 3 mi. S. of Rockaway Beach (Pedro Valley). Comment
  RSA34831  Mercurialis annua I. L. Wiggins 1945-9-22 11195 San Mateo Cultivated fields in Pedro Valley, inland from Pedro Point. Comment
  CAS-BOT-BC438141  Mesembryanthemum nodiflorum Malcom A. Nobs; S. Galen Smith 1949-8-27 1623 San Mateo East of Redwood City Comment
  JROH3906  Micranthes californica John H. Thomas 1973-3-12 16483 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC348576  Micropus californicus var. californicus Philip C. Wheeler 1965-5-11 s.n. San Mateo San Bruno Mountain. Southwest Canyon below NBC Tower Comment
  UCSB17192  Micropus californicus var. californicus Schulte, John 1963-4-26 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mounatins 152 Comment
  CAS-BOT-BC348722  Microseris bigelovii John H. Thomas 1963-5-20 10147 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  JROH1145  Microseris douglasii subsp. douglasii John Hunter Thomas 1980-5-8 19958 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1150  Microseris douglasii subsp. douglasii John Hunter Thomas 1989-5-9 24706 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1151  Microseris douglasii subsp. douglasii John Hunter Thomas 1992-5-5 25211 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC349148  Microseris douglasii subsp. tenella LeRoy Abrams 1902-5-4 2423 San Mateo Woodside Comment
  CAS-BOT-BC349147  Microseris douglasii subsp. tenella L. R. Abrams 1918-4-30 7212 San Mateo San Bruno Hills, Bay Shore [Bayshore] road Comment
  SEINET10842027 Image available Microseris leucocarpha Charles F. Baker 1902-5-4 Baker 808 San Mateo Woodside. 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
  JROH5921  Microsteris gracilis John H. Thomas 1982-3-12 20804 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near [Escobar horse trail gate] fence. Comment
  HSC20677  Mimulus aurantiacus var. aurantiacus P. A. Murphy 1965-4-16 27 San Mateo Ca. 22 mi. from Half Moon Bay on the Higgins Canyon Rd. Comment
Read comments
Jul 29 2015
  JEPS85570  Mimulus aurantiacus var. aurantiacus Craig Dremann 1986-8-30 321 San Mateo near La Honda (Highway 84 (Woodside-La Honda Road), near mile 6.68) Comment
  JROH4068  Mimulus aurantiacus var. aurantiacus W. R. Dudley 1893-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  JROH4074  Mimulus aurantiacus var. aurantiacus John H. Thomas 1975-6-5 17936 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack Comment
  UC885697  Mimulus aurantiacus var. aurantiacus E. W. Rust 1907-4-27 127 San Mateo vicinity Stanford University; King's Mountain 213 Comment
  JROH4078  Mimulus cardinalis John H. Thomas 1961-6-14 9544 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH4080  Mimulus cardinalis Carol Zabel 1989-8-11 26 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek bank, 100 feet upstream from low-flow crossing Comment
  JROH4081  Mimulus cardinalis John Hunter Thomas 1992-5-26 25358 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  POM5170A  Mimulus douglasii C. F. Baker 1903-4-12 515 San Mateo Near San Mateo Co. Comment
  UCD23299  Mimulus grandis Alan T. Whittemore 1976-5-29 s.n. San Mateo San Francisco Fish and Game Refuge. East side of Lower Crystal Springs Lake, on Sawyer's Camp Road, between L. San Andreas and Crystal Springs Lake. 100 Comment
  JROH4089  Mimulus guttatus D. E. Breedlove 1971-5-5 19328 San Mateo Jasper Ridge Biological Preserve, Stanford University; on bluff above San Francisquito Creek, 500 yards below Searsville Dam Comment
  SEINET5561542  Mimulus guttatus H. S. Gentry 1931-1 93 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  JROH1699  Minuartia douglasii John H. Thomas 1967-5-10 12849 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1706  Minuartia douglasii Carol Zabel 1989-5-5 15 San Mateo Jasper Ridge Biological Preserve, Stanford University; Herb's serpentine loop, top of Trail 5 Comment
  JROH1708  Minuartia douglasii John Hunter Thomas 1991-5-2 25011 San Mateo Jasper Ridge Biological Preserve, Stanford University; near exclosure Comment
  CDA3325  Mirabilis jalapa W. Davis 1962-7-23 San Mateo San Bruno. 0 Comment
  CAS-BOT-BC214083  Monardella villosa Josephine D. Randall 1907-6-29 177 San Mateo King's Mt. Road, Santa Cruz Peninsula Comment
  CAS-BOT-BC214062  Monardella villosa W. R. Dudley 1894-7-7 s.n. San Mateo Bear Gulch Road, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC214079  Monardella villosa Walter Knight 1964-9-14 847 San Mateo Peak Mt. in Montara Range Comment
  SEINET10582383  Monardella villosa subsp. franciscana A. Graff 1993-6-14 Graff 4 San Mateo 0.4 miles down Bean Hollow Road from its intersection with Pescadero Road, along right road cut. Windy, exposed, dry, steep, rocky cuts. Locally infrequent, with Artemisia californica, Baccharis pilularis, Mimulus aurantiacus, Eriophyllum stachaedifolium, Anaphalis margaritacea, Dudleya sp., Scrophularia californica, Eriogonum sp., grasses. Comment
  JEPS121451  Monardella villosa subsp. villosa Adam C. Schneider 2013-5-17 127 San Mateo Crystal Springs Reservoir Comment
  JROH2831  Monardella villosa subsp. villosa L. R. Abrams 1901-5-14 1643 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2845  Monardella villosa subsp. villosa John Hunter Thomas 1981-6-4 20671 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2850  Monardella villosa subsp. villosa John Hunter Thomas 1988-6-2 24507 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2851  Monardella villosa subsp. villosa John Hunter Thomas 1989-6-6 24762 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC327788  Monolopia gracilens Eric Walther 1920-5-9 s.n. San Mateo Woodside Comment
  CAS-BOT-BC444949  Montia fontana K. Hoppaugh 1929-4-29 373 San Mateo 10 mi. so. of San Francisco, Skyline Boulevard 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
  UC1206482  Muilla maritima Le Roy Abrams 1902-4-13 2330 San Mateo Crystal Springs Lake Comment
  SFV16938  Myosotis discolor J. N. Hogue 1980-9-1 82 .2 San Mateo Santa Cruz Mountains Heritage Grove Redwood Reserve, near Loma Mar. Comment
  JROH1399  Myosotis latifolia John Rawlings 2007-4-1 0986 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2, 500 yards east of Zoology Cabin site. 69 Comment
  RSA176826  Myosotis latifolia John H. Thomas 1961-5-5 9207 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  CAS-BOT-BC166663  Myosotis latifolia Peter Rubtzoff 1977-4-16 8949 San Mateo San Bruno Mountains. 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
  HSC3724  Myosotis sylvatica P. A. Murphy 1965-4-15 50 San Mateo In Hatch's Woods, ca. 6 mi. from Half Moon Bay Comment
  CAS-BOT-BC166772  Myrica californica Peter Rubtzoff 1980-12-11 9634 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  RSA18326  Myrica californica Carl B. Wolf 1929-5-10 3709 San Mateo Coast at Pigeon Pt. South of Pescadero. Comment
  CAS-BOT-BC260026  Nassella lepida George Oberlander 1950-5-6 774 San Mateo San Francisco Watershed Reserve. San Andreas Valley Comment
  CAS-BOT-BC260237  Nassella pulchra H. A. Dutton 1900-2-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside Comment
  CAS-BOT-BC260238  Nassella pulchra H. A. Dutton 1900-2-1 s.n. San Mateo Woodside Comment
  UCD87483  Nassella pulchra Beecher Crampton 1962-6-11 6502 San Mateo Sharp park suburb of pacifica, Moris' Point Road, west of State Highway 1. Comment
  CAS-BOT-BC60477  Nasturtium officinale Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Base of Quarry 2. Comment
  CAS-BOT-BC60480  Nasturtium officinale J. H. Thomas 1959-7-8 8018 San Mateo At Pescadero Beach. Comment
  JROH1569  Nasturtium officinale John H. Thomas 1955-5-6 4998 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1570  Nasturtium officinale John H. Thomas 1967-6-1 12979 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1571  Nasturtium officinale John H. Thomas 1973-6-15 16830 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD77883  Nasturtium officinale Robert E. Preston 2001-5-30 1535 San Mateo Ca. 9 mi nnw of Boulder Creek. 304 Comment
  SEINET10496814  Navarretia atractyloides Mary Susan Taylor 1978-8-30 Taylor 1871 San Mateo Comment
  LA206599  Navarretia heterodoxa Lewis S. Rose; 1941-6-12 41269 San Mateo W of Redwood City, Emerald Lake 120.0 Comment
  UC306768  Navarretia heterodoxa A. D. E. Elmer Jun 1903 4282 San Mateo Crystal Springs Lake Comment
  RSA42950  Navarretia heterodoxa R. C. Bacigalupi 1947-6-4 2821 San Mateo Back of San Carlos Comment
  RSA95822  Navarretia heterodoxa L. S. Rose 1953-6-29 53044 San Mateo Emerald Lake, hills w. of Redwood City 91 Comment
  JROH3212  Navarretia squarrosa John Hunter Thomas 1977-6-16 18778 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UC125073  Navarretia squarrosa Katharine Brandegee Aug 1908 San Mateo Montara Point Comment
  UC52679  Navarretia squarrosa J. Burtt Davy 1893-6-17 781 San Mateo Belmont Comment
  CAS-BOT-BC389710  Navarretia squarrosa L. Sigal 1969-7-1 s.n. San Mateo Belmont Canyon out of Water Dog Lake Comment
  SD38781  Navarretia squarrosa Edith A. Purer 1933-8-4 5413 San Mateo Flat area near Baden Station Comment
  RSA17967  Navarretia viscidula C. B. Wolf 1927-8-13 712 San Mateo Summit La Honda Grade, Santa Cruz Mountains Comment
  SD38536  Nemophila menziesii Janet Turner 1933-4-19 3728 San Mateo Above Emerald Lake Comment
  POM289745  Nemophila menziesii var. menziesii Lyman Benson 1930-5-1 2067 San Mateo Stanford University. San Lorenzo Mt. Range. 91 Comment
  UC75163  Nemophila parviflora C. F. Baker 1902-4-12 509 San Mateo La Honda Comment
  CAS-BOT-BC219487  Nemophila parviflora Mrs. E. C. Sutliffe 1933-5-25 s.n. San Mateo Purissima Canyon Comment
  UCSB1036  Notholithocarpus densiflorus Muller, Cornelius 1951-1-28 San Mateo South of Pescadero Comment
  CAS-BOT-BC140447  Oemleria cerasiformis Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo Comment
  HSC66971  Oemleria cerasiformis Richard Spjut 1980-5-15 6195 San Mateo Palo Alto Foothill Park along Steep Hollow Trail, 1/4 mi. from jct. with Wildhorse Valley 229 Comment
  JROH3718  Oemleria cerasiformis John Hunter Thomas 1990-4-26 24811 San Mateo Jasper Ridge Biological Preserve, Stanford University. To the west of the dam Comment
  UCD23290  Oemleria cerasiformis Alan T. Whittemore 1976-5-29 102 San Mateo Intersection of Polyhemus Creek Road and Ticonderoga Street, San Mateo. 140 Comment
  JROH292  Oenanthe sarmentosa Carol Zabel 1989-8-1 18 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Middle Lake Comment
  SEINET12189809  Oenothera elata L. K. Henry 1956-1 s.n. San Mateo along Pacific Ocean at Pigeon Point Lighthouse on Rt 1 Comment
  UCSC004918  Oenothera elata Monica Larenas 1985-6-1 22 San Mateo Hwy 1, 1 mi N of Bean Hollow Comment
  POM259822  Oenothera elata subsp. hookeri L. R. Abrams, Ira L. Wiggins 1939-6-3 438 San Mateo 2 miles north of Pigeon Point Lighthouse Comment
  JEPS126148  Orobanche californica subsp. californica Alison Colwell with A. Sanders 2004-7-24 04 -196 San Mateo Shelter Cove, near Pacifica Comment
  CAS-BOT-BC499692  Orobanche californica subsp. californica Dr. Henry T. Taabor 1953-8-30 s.n. San Mateo Pigeon Pt. Comment
  SEINET8466936 Image available Orobanche grayana Tom Hensel 1973-7-10 267 San Mateo Pigeon Point Lighthouse, 8.5 mi N of San Mateo-Santa Cruz Co. line Comment
  JROH3089  Orobanche vallicola James McMurphy 1906-8-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  CAS-BOT-BC502964  Orobanche vallicola Frank Tose 1927-10-1 s.n. San Mateo On the road to San Mateo 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
  RSA92815  Orthocarpus densiflorus Peter H. Raven 1950-4-16 1776 San Mateo Colma Canyon, San Bruno Mountains. 183 Comment
  RSA14128  Orthocarpus lithospermoides Elmer I. Applegate 1895-5-11 392 San Mateo Near Searsville. Comment
  POM194754  Orthocarpus purpurascens var. latifolius D. D. Keck 1927-6-10 395 San Mateo Radio Station, Montara Point. 0 Comment
  HSC23966  Osmorhiza berteroi Mary Katherine Wicksten 1971-6-17 74 San Mateo Huddart Park, along Chickadee Trail Comment
  UC21176  Osmorhiza berteroi J. Burtt Davy 1893-6-17 788 San Mateo Belmont Comment
  CHSC56513  Osmorhiza chilensis Steven Triano 1988-5-24 170 San Mateo Along se side of Old La Honda Road ca 0.5 air miles e of SkyLonda. 405 Comment
  POM139435  Oxalis oregana A. D. E. Elmer 1903-03 4532 San Mateo Portola Comment
  POM278936  Oxalis oregana Lyman Benson 1931-2-27 2616 San Mateo Woodside, Santa Cruz mountains, San Francisquito Creek watershed, Kings Mt Road 183 Comment
  RSA15276  Oxalis oregana Carl B. Wolf 1927-4-3 242 San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  RSA76963  Oxalis pes-caprae Mabel Peirson 1926-2-24 8218 San Mateo South of Colma Comment
  UCSB11440  Oxalis pes-caprae Olson, Jim 1962-4-17 San Mateo 1 mile east of Halfmoon Bay on Halfmoon Bay to San Mateo Road 15 Comment
  UC175966  Packera breweri A. A. Heller 1907-5-23 8565 San Mateo back of San Mateo (on the Half Moon Bay road) Comment
  JROH5340  Panicum miliaceum subsp. miliaceum Ann Lambrecht 2000-9-11 1 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera Creek. Comment
  JEPS71261  Parapholis incurva A. L. Hormay 1932-5-29 San Mateo San Bruno; San Francisco Bay Shore Comment
  CDA15877  Parietaria judaica J. Xerogeanes 2000-1-4 PDR 1242905 San Mateo North Coast; Chorry Rd., San Bruno. 0 Comment
  JROH5341  Paspalum dilatatum John Rawlings 2010-8-19 1061 San Mateo Jasper Ridge Biological Preserve, Stanford University. Adjacent to caretakers residence. 106 Comment
  CAS-BOT-BC265662  Paspalum distichum Ira L. Wiggins 1980-8-29 22265 San Mateo Bed of San Francisquito Creek, ca 50 m upstream from Pope Street bridge, Menlo Park Comment
  JROH5349  Paspalum distichum John Hunter Thomas 1981-7-12 20699 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS17981  Pedicularis densiflora George B. Rossbach 1955-3-12 488 San Mateo se end of Buriburi Ridge (nw side of San Mateo Creek); , San Mateo Creek 76 Comment
  JROH4102  Pedicularis densiflora John H. Thomas 1958-2-15 6985 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4103  Pedicularis densiflora John H. Thomas 1959-4-5 7663 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA130342  Pedicularis densiflora E. W. Rust 1907-4-27 135 San Mateo King's Mountain. Comment
  RSA169354  Pedicularis densiflora L. S. Rose 1964-3-23 64013 San Mateo Emerald Lake, W of Redwood City. 122 Comment
  UCD123330  Pedicularis densiflora Lewis S. Rose 1964-3-23 64013 San Mateo Emerald Lake, west of Redwood City. 121 Comment
  UCSC003376  Pelargonium grossularioides Randall Morgan 2001-5-5 3724 San Mateo south of Franklin Point, San Mateo County Comment
  CAS-BOT-BC207021  Pelargonium vitifolium L. R. Abrams; I. L. Wiggins 1939-6-3 437 San Mateo 2 miles north of Pigeon Point Lighthouse Comment
  POM203868  Pelargonium vitifolium J. T. Howell 1932-12-21 10864 San Mateo Near Pescadero. Comment
  CAS-BOT-BC69251  Pellaea andromedifolia John H. Thomas 1975-4-17 s.n. San Mateo Yerba Buena Nursery, near Skyline Blvd, on Isenberg Ranch Comment
  JROH1159  Pentachaeta alsinoides John H. Thomas 1958-5-10 7155 San Mateo Jasper Ridge Biological Preserve, Stanford University; to the north of the top of the ridge Comment
  JROH5876  Pentachaeta alsinoides John Hunter Thomas 1989-5-5 24655 San Mateo Jasper Ridge Biological Preserve, Stanford University. [Along Rd. F] 166 Comment
  CAS-BOT-BC330497  Pentachaeta bellidiflora Ned Cahill 1974-4-19 154 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  SJSU14193  Pentachaeta bellidiflora Toni Corelli 1989-4-2 201 San Mateo watershed triangle between Edgewood & Canada Rds 170 Comment
  UC652563  Perideridia gairdneri subsp. gairdneri Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9295 San Mateo Ano Nuevo Point Comment
  JROH310  Perideridia kelloggii John H. Thomas 1972-8-18 16148 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC413610  Persicaria amphibia W. R. Dudley 1909-10-31 s.n. San Mateo Santa Cruz Mountain Peninsula. Hooper's Pond, Woodside Comment
  JROH3251  Persicaria amphibia John Hunter Thomas 1981-7-12 20705 San Mateo Jasper Ridge Biological Preserve, Stanford University. On old beach in shallow water. Comment
  JROH6176  Persicaria maculosa John Rawlings, Ann Lambrecht 2017-10-3 2303 San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek Delta 103 Comment
  JROH3277  Persicaria maculosa John Hunter Thomas 1982-11-6 21201 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta along edge of Searsville Lake. Comment
  CAS-BOT-BC330252  Petasites frigidus var. palmatus A. W. Herre; Ira L. Wiggins 1939-3-25 19 A San Mateo Headwaters of Pescadero Creek, about 8 miles N of Big Basin Redwood Park Comment
  CAS-BOT-BC330311  Petasites frigidus var. palmatus L. R. Abrams 1904-3-7 s.n. San Mateo Santa Cruz Mountain Peninsula. Bear Gulch Comment
  SEINET3158140  Phacelia distans L. S. Rose 1939-4-13 39065 San Mateo San Mateo Canyon near Crystal Springs Lake 61 Comment
  UC75119  Phacelia distans C. F. Baker 1903-4-6 1898 San Mateo San Bruno Hills Comment
  UC881081  Phacelia distans Alice Eastwood 1912-6-10 337 San Mateo Crystal Springs Comment
  RSA426083  Phacelia distans L. S. Rose 1939-4-13 39065 San Mateo San Mateo Canyon near Crystal Springs Lake. 61 Comment
  POM65457  Phacelia divaricata A. D. E. Elmer 1903-05 4481 San Mateo Crystal Springs Lake. Comment
  RSA128862  Phacelia divaricata W. R. Dudley 1896-4-4 s.n. San Mateo Near Crystal Springs Lake Comment
  POM65348  Phacelia malvifolia A. D. E. Elmer 1903-05 4784 San Mateo San Bruno Hills. Comment
  JROH2766  Phacelia rattanii Woody Woodward 1979-5-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS67917  Phalaris L. R. Heckard and J. H. Thomas 1972-4-16 2902 San Mateo along e side Upper Crystal Springs Reservoir ((below State Highway interchange)); along e side Upper Crystal Springs Reservoir Comment
  CAS-BOT-BC258935  Phalaris aquatica John H. Thomas 1968-12-18 14871 San Mateo About 0.9 miles inland from the coast along road toward Pescadero Comment
  JROH5355  Phalaris aquatica John Hunter Thomas 1978-7-2 19243 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD88021  Phalaris aquatica Alison Blake 2003-4-16 8 San Mateo Woodside. Filoli Center. S edge of Lower Parking Lot, along fenceline between Parking Lot and Heritage Orchard. Comment
  RSA128340  Phalaris californica P. H. Raven 1950-6-3 2275 San Mateo along dry rivulet flowing into San Andrews Lake, Crystal Springs Lake 122 Comment
  SJSU15792  Phalaris californica Toni Corelli 2010-6-1 641 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay. 23 Comment
  CDA2317  Phalaris paradoxa T. C. Fuller 1967-6-13 15948 San Mateo Road to San Mateo, 0.7 mile east of Skyline Blvd., east above Crystal Springs Lake. 0 Comment
  UC1244706  Phoradendron villosum John H. Thomas 1959-8-22 8080 San Mateo ca. 5 mi. s.w. Palo Alto (Jasper Ridge); Jasper Ridge 152 Comment
  UCD18545  Phyla nodiflora Roman Gankin 1950-7-8 13 San Mateo city of Menlo Park, Hermosa Way, along roadside. 30 Comment
  SJSU4276  Phyllospadix scouleri E. B. Woon 1957-5-31 227 San Mateo Pigeon Point Comment
  UC2056117  Phyllospadix scouleri K. Dickey 2015-6-18 San Mateo Pescadero, beds south of promontory Comment
  CAS-BOT-BC452001  Phyllospadix scouleri Robert Setzer 1969-7-3 3311 San Mateo Montara Beach Comment
  CAS-BOT-BC142178  Physocarpus capitatus A. D. E. Elmer 1903-7-1 4804 San Mateo Portola Comment
  CAS-BOT-BC142180  Physocarpus capitatus Margaret A. Barry 1937-5-15 112 San Mateo Woods on Coal Mine Ridge Comment
  CAS-BOT-BC142186  Physocarpus capitatus Walter Knight 1963-6-24 s.n. San Mateo Quarry 4 - San Bruno Mountain Comment
  CAS-BOT-BC142225  Physocarpus capitatus George Oberlander 1950-7-15 1041 San Mateo San Andreas Valley - San Francisco Watershed Reserve Comment
  UC762978  Physocarpus capitatus R. F. Hoover 1941-4-23 4902 San Mateo San Mateo Creek below Crystal Springs Dam Comment
  CAS-BOT-BC206939  Pickeringia montana var. montana W. R. Dudley 1893-5-27 s.n. San Mateo Between Woodside and King's Mtn. - Santa Cruz Peninsula Comment
  CAS-BOT-BC206942  Pickeringia montana var. montana J. I. McMurphy 1906-5-20 80 San Mateo King's Mt. Road, Santa Cruz Mts. - Santa Cruz Peninsula 457 Comment
  RSA19297  Pickeringia montana var. montana L. S. Rose 1937-5-23 37321 San Mateo Belmont 91 Comment
  RSA177001  Picris echioides John H. Thomas 1964-11-15 10525 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto; at edge of Searsville Lake. Comment
  JEPS121040  Pinus radiata Adam C. Schneider with C. Matt Guilliams 2013-3-8 40 San Mateo Crystal Springs Reservoir, Northern part of western margin of San Francisco Public Utilities Commission land. Comment
  JROH118  Pinus radiata John H. Thomas 1977-4-4 18511 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH120  Pinus radiata John Hunter Thomas 1977-5-19 18616 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA12771  Pinus radiata C. B. Wolf 1934-11-9 6230 San Mateo Ano Nuevo Point to Pigeon Point; extend 1-2 miles south here 46 Comment
  CAS-BOT-BC136530  Piperia candida W. R. Dudley 1905-6-18 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC137294  Piperia elegans Margaret A. Barry 1937-9-24 220 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  JROH1407  Plagiobothrys bracteatus Herbert Dengler 1966-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC228134  Plagiobothrys chorisianus Edward Lee Greene 1886-5-10 s.n. San Mateo Belmont Comment
  CAS-BOT-BC228142  Plagiobothrys chorisianus Alice Eastwood; John Thomas Howell 1938-6-26 6068 San Mateo Pigeon Point Comment
  POM64766  Plagiobothrys chorisianus C. F. Baker 1913-6-4 3339 San Mateo Montara (?) Point Comment
  RSA187365  Plagiobothrys chorisianus W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Mountain peninsula, near Crystal Springs Reservoir Comment
  RSA262234  Plagiobothrys chorisianus John H. Thomas 1961-5-7 9258 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  UC73677  Plagiobothrys chorisianus Harley P. Chandler 1901-3-15 806 San Mateo cliffs w Colma Comment
  CAS-BOT-BC228152  Plagiobothrys chorisianus var. chorisianus J. I. McMurphy 1906-5-8 s.n. San Mateo The Santa Cruz Mountain Peninsula. Pond by road between Woodside and Byrne's Store Comment
  CAS-BOT-BC228165  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1893-5-2 s.n. San Mateo Between Kings Mountain and La Honda below Haymans Ranch Comment
  CAS-BOT-BC228174  Plagiobothrys chorisianus var. hickmanii W. R. Dudley 1900-3-16 s.n. San Mateo The Santa Cruz Mountain Peninsula. Along road between King's [Kings] Mountain and Half Moon Bay Comment
  JROH1424  Plagiobothrys nothofulvus John H. Thomas 1969-4-12 14879 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1428  Plagiobothrys nothofulvus John H. Thomas 1975-4-18 17785 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1084415  Plagiobothrys nothofulvus G. Thomas Robbins 1937-4-11 102 San Mateo near Spring Valley Lakes (along road to Woodside) Comment
  UC24576  Plagiobothrys undulatus J. Burtt Davy Jun 21 1893-Jun 23 1893 1143 San Mateo Pilarcitos Lake and Canyon Pilarcitos Canyon, Pilarcitos Lake Comment
  UC625428  Plantago elongata L. R. Abrams and I. L. Wiggins 1939-6-3 422 San Mateo Ano Nuevo Point Comment
  POM61247  Plantago elongata subsp. pentasperma Copeland 1903-6-5 3327 San Mateo Montara Point. Comment
  JROH3115  Plantago erecta John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG33953  Plantago erecta L. S. Rose 1966-5-2 San Mateo Emerald Lake, W of Redwood City 91 Comment
  RSA184882  Plantago erecta L. S. Rose 1965-5-3 65056 San Mateo San Bruno Mountain, North end. 183 Comment
  RSA246718  Plantago hirtella var. galeottiana Robert F. Thorne, Percy C. Everett 1965-8-1 35073 San Mateo 21.5 miles S of Golden Gate Bridge. 69 Comment
  JROH3129  Plantago lanceolata John H. Thomas 1970-4-29 15616 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC2049867  Plantago lanceolata H. W. Johansen 1955-4-23 81 San Mateo Crystal Springs Road, 2 miles W of San Mateo Comment
  SBBG51590  Plantago lanceolata J. Doty 1969-3-26 597 San Mateo 100 yards E of the jct of State Hwy 35 and 92 Comment
  CAS-BOT-BC164028  Plantago major Peter Rubtzoff 1975-10-11 8424 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, NW of Fog Forest Comment
  JEPS24268  Plantago subnuda J. H. Thomas 1959-7-8 8016 San Mateo Pescadero Beach Comment
  SEINET7097922  Platanthera dilatata var. leucostachys A. G. Vestal 1937-1 San Mateo Comment
  CAS-BOT-BC92020  Platystemon californicus Lewis S. Rose 1933-5-17 33170 San Mateo Redwood City. Comment
  SEINET3854600 Image available Platystemon californicus Lewis S. Rose 1933-5-17 33170 San Mateo Redwood City. Comment
  JROH5878  Plectritis congesta subsp. brachystemon Diane Renshaw 2014-4-30 1222 San Mateo Jasper Ridge Biological Preserve, Stanford University; by fallen tree between Alan's Mountain (utility pole mound) and San Francisquito Creek 89 Comment
  JROH4250  Plectritis macrocera John H. Thomas 1971-4-24 15773 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  POM198992  Pleuropogon californicus var. californicus A. D. E. Elmer 1903-06 4848 San Mateo Millbrae Comment
  POM284984  Pleuropogon californicus var. californicus Lyman Benson 1930-4-26 2060 San Mateo Stanford University. 122 Comment
  CAS-BOT-BC260962  Pleuropogon californicus var. californicus J. I. McMurphy 1906-5-8 s.n. San Mateo Pond near head of Crystal Springs Lakes by road from Woodside to Byrnes Store Comment
  CAS-BOT-BC255566  Poa annua Ira L. Wiggins 1975-4-17 22142 San Mateo NE side of Southern Pacific right-of-way, between San Francisquito Creek and Willow Road, Menlo Park 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
  CAS-BOT-BC261645  Poa annua Peter Rubtzoff 1988-5-3 9910 San Mateo San Bruno Mountain, Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road in the northwest part of the Saddle area, east of Saddle Trail Junction. Comment
  JEPS71266  Poa annua unknown 1919-7-22 211 San Mateo Ano Nuevo Comment
  JROH5543  Poa annua John Rawlings 2011-4-5 0993 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 11 S of footbridge. 130 Comment
  UC1537366  Poa douglasii Gordon H. True Jr. 1937-3-31 618 San Mateo Salada Beach 60 Comment
  JROH5410  Poa howellii John Rawlings 2012-5-1 1115 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Trail 9 162 Comment
  JROH5411  Poa howellii John Rawlings 2012-5-1 1071 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill side of Road E on steep north-facing slope of the big inlet. 112 Comment
  JROH5777  Poa howellii John Rawlings 2016-4-16 1702 San Mateo Jasper Ridge Biological Preserve, Stanford University; at the first footbridge on Trail 12 near the old quarries. 108 Comment
  UC1190036  Poa howellii Roxana S. Ferris 1921-3-20 2175 San Mateo road from Alpine Creek to Pescadero Creek; Santa Cruz Mt Peninsula 396 Comment
  SEINET10959346  Poa howellii LeRoy R. Abrams Abrams 1560 San Mateo Santa Cruiz Mts. Comment
  JROH5419  Poa pratensis subsp. pratensis John Rawlings 2008-5-13 1000 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Ranger Bath, Searsville townsite 107 Comment
  CAS-BOT-BC243118  Poa secunda subsp. secunda W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Summit Springs, Kings Mountain Comment
  CAS-BOT-BC243127  Poa secunda subsp. secunda George Thomas Oberlander 1950-4-16 653 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  JROH5425  Poa secunda subsp. secunda John Hunter Thomas 1967-6-1 12958 San Mateo Jasper Ridge Biological Preserve, Stanford University; rocky north slope, Searsville Ridge Comment
  JROH6181  Poa secunda subsp. secunda John Rawlings 2004-4-4 786 San Mateo Jasper Ridge Biological Preserve, Stanford University; east serpentine near Escobar Gate. 165 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
  CAS-BOT-BC474768  Pogogyne serpylloides Robert E. Preston 2011-6-16 2865 San Mateo Santa Cruz Mountains. Oil Creek watershed, 1.8 mi NW of Waterman Gap 268 Comment
  JROH2859  Pogogyne serpylloides John H. Thomas 1976-4-30 18104 A San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH5623  Pogogyne serpylloides John Rawlings 2014-5-9 1236 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 2 extension about 115 meters from its Escobar terminus at the wooden trail marker near the boundary fence east of Escobar Gate 146 Comment
  CAS-BOT-BC232872  Polemonium carneum George Oberlander 1950-5-2 580 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  UC23972  Polemonium carneum J. Burtt Davy 1895-4-20 1040 San Mateo Pilarcitos Comment
  UCR101673  Polygonum George K. Helmkamp, E. A. Helmkamp 1998-5-16 3741 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  UC168661  Polygonum amphibium var. emersum C. F. Baker 1902-10-20 1835 San Mateo Searsville Comment
  CAS-BOT-BC389685  Polygonum aviculare Jeanie Nieri 1953-2-3 23 San Mateo Growing three miles west of Hillsdale Comment
  JEPS81637  Polygonum aviculare subsp. depressum J. C. Hickman 1981-7-21 1003 San Mateo Ano Nuevo Reserve; near center Comment
  JROH3267  Polygonum aviculare subsp. depressum John Hunter Thomas 1992-5-26 25356 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing. Comment
  CAS-BOT-BC6613  Polygonum coccineum f. terrestre Charles Fuller Baker 1902-10-20 1835 San Mateo Searsville Comment
  CAS-BOT-BC109237  Polygonum paronychia Adele Lewis Grant 1917-5-6 944 San Mateo Pebble Beach near Pescadero. Comment
  CAS-BOT-BC109238  Polygonum paronychia Adele Lewis Grant 1917-5-6 944 San Mateo Pebble Beach near Pescadero. Comment
  JEPS50633  Polygonum persicaria W. L. Jepson 1923-10-18 10250 San Mateo hills w Colma (toward ocean) Comment
  RSA120434  Polygonum punctatum Roxana S. Ferris 1924-10-6 4093 San Mateo Searville Lake on Portola Hwy. Comment
  UC1936265  Polypodium Robert Price 1983-1-10 627 San Mateo Pulgas Ridge, just ENE of Crystal Springs Reservoir, ca. 1/8 mi ENE of entry gate on Bunker Hill Ave. Comment
  JROH81  Polypodium californicum Lawrence J. Winship 1974-11-16 17 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC76856  Polypodium calirhiza Peter H. Raven 1951-2-18 2730 San Mateo San Bruno Mts. near Brisbane. Comment
  UC62435  Polypodium scouleri W. C. Blasdale 1893-6-23 San Mateo San Mateo Comment
  JROH5433  Polypogon interruptus John Hunter Thomas 1979-6-12 19588 San Mateo Jasper Ridge Biological Preserve, Stanford University. On dam. Comment
  POM199082  Polypogon interruptus A. D. E. Elmer 1903-07 4694 San Mateo Pilarcitos Stone Dam. Comment
  SEINET10602416  Polypogon interruptus Adolph D. E. Elmer Elmer 4694 San Mateo Pilarcitos Creek. Comment
  JROH5453  Polypogon monspeliensis John Hunter Thomas 1983-5-23 22240 San Mateo Jasper Ridge Biological Preserve, Stanford University. Roadside drainage near shack side & low-flow crossing. Comment
  UC1537219  Polypogon monspeliensis Gordon H. True Jr. 1937-7-23 808 San Mateo n Salada Beach; N of Salada Beach, base of ocean bluff 30 Comment
  JROH46  Polystichum dudleyi Lawrence J. Winship 1974-11-2 2 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC72219  Polystichum dudleyi W. R. Dudley 1902-1-1 s.n. San Mateo upper Gazos Creek Comment
  RSA430495  Polystichum dudleyi Lyman Benson 1934-8-19 6115 San Mateo La Honde Grade, Santa Cruz Mountains, transition zone 305 Comment
  CHSC30987  Potamogeton filiformis M. S. Taylor; E. Pierce 1978-7-31 1875 San Mateo Ano Nuevo State Reserve, in pond on bluff, between Hwy 1 and the Pacific Ocean, n of Santa Cruz. Comment
  CAS-BOT-BC267166  Potamogeton foliosus Ira L. Wiggins 1935-8-24 8159 A San Mateo In reservoir about 2 miles E of Half Moon Bay Comment
  CAS-BOT-BC453678  Potamogeton gramineus W. R. Dudley 1910-5-26 s.n. San Mateo Santa Cruz Mountain Peninsula. Coal Mine Ridge near Black Mountain Comment
  CAS-BOT-BC453736  Potamogeton illinoensis Charles W. O'Brien 1964-8-31 s.n. San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC453834  Potamogeton nodosus L. R. Abrams; I. L. Wiggins 1939-6-3 435 San Mateo Ano Nuevo Point Comment
  SEINET11665020  Potamogeton nodosus H. L. Mason 1921-5-28 s.n. San Mateo back of New Years Pt Comment
  UC279592  Potamogeton nodosus W. A. Setchell, C. B. Setchell, H. E. Parks 1925-8-29 San Mateo Comment
  UC1099838  Potamogeton pectinatus Verne Grant, Herbert L. Mason 1946-8-30 13078 San Mateo n of San Francisco County Prison Comment
  CAS-BOT-BC454007  Potamogeton pectinatus W. R. Dudley 1903-7-21 s.n. San Mateo Near Hallidie's, Portola Comment
  CAS-BOT-BC454008  Potamogeton pectinatus Ira L. Wiggins 1935-6-29 8051 San Mateo Pescadero Creek, about 1 mile west of Pescadero Comment
  CAS-BOT-BC454051  Potamogeton pusillus subsp. pusillus Peter C. Ting, Jr. 1939-8-28 s.n. San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC141934  Potentilla anserina subsp. pacifica H. M. Hall 1922-5-17 s.n. San Mateo Point Montara, wet swale at radio sta., coast of San Mateo co. Comment
  POM203299  Potentilla hickmanii E. C. Satlife 1933-11-10 s.n. San Mateo Moss Beach Comment
  UCD139791  Prosartes hookeri Janet Jacob 1951-4-1 53 San Mateo 7 miles east of Pescadero. Comment
  CAS-BOT-BC516350  Prosartes hookeri George Oberlander 1950-3-11 587 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve Comment
  CAS-BOT-BC516360  Prosartes hookeri W. R. Bentley 1957-5-11 83 San Mateo La Honda Road, 1/2 mile east of La Honda 152 Comment
  CAS-BOT-BC517391  Prosartes smithii W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Peninsula,La Honda Road 512 Comment
  SEINET8502087 Image available Prosartes smithii L. M. Henry, M. E. Springer 1946-7-21 372 San Mateo La Honda Comment
  CDA40755  Prunella vulgaris subsp. vulgaris Villegas & France 1972-8-7 PDR # 37028 San Mateo 415 Cypress Avenue, Millbrae. 0 Comment
  RSA181225  Prunella vulgaris var. lanceolata John H. Thomas 1964-6-19 10430 San Mateo 0.9 miles S of Tunitas Creek near Coast Hwy, 61 Comment
  RSA18456  Prunella vulgaris var. lanceolata Carl B. Wolf 1927-6-29 551 San Mateo South of Pebble Beach near Pescadero. Comment
  CAS-BOT-BC158177  Prunus emarginata A. D. E. Elmer 1903-5-1 4523 San Mateo Searsville Lake Comment
  CAS-BOT-BC158178  Prunus emarginata George Oberlander 1950-5-21 956 San Mateo Southern Cahill Ridge Comment
  CAS-BOT-BC154653  Prunus subcordata A. D. E. Elmer 1903-4-1 4533 San Mateo Portola Comment
  SEINET11917626  Prunus virginiana var. demissa G. C. McMurphy 1906-4-28 16 San Mateo Santa Cruz Penninsula, Carte de Madera Comment
  UCD135023  Pseudognaphalium beneolens Lewis S. Rose 1966-8-15 66082 San Mateo Emerald Lake, west of Redwood City. 91 Comment
  CAS-BOT-BC356471  Pseudognaphalium beneolens Josephine D. Randall 1907-7-28 76 San Mateo Santa Cruz Peninsula. Black Mt. Road near Iverson's 335 Comment
  JROH769  Pseudognaphalium californicum John Hunter Thomas 1983-7-20 22893 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC357116  Pseudognaphalium luteoalbum John H. Thomas 1963-5-8 10064 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC357120  Pseudognaphalium luteoalbum John Thomas Howell 1935-1-13 12578 San Mateo Lake San Andreas Comment
  CAS-BOT-BC357135  Pseudognaphalium luteoalbum R. E. Frenkel 1963-12-7 326 San Mateo San Francisco Water District, along road edge, ca. 0.5 mile east of Halfmoon [Half Moon] Bay Club toward Pilarcitos Reservoir Comment
  SDSU3737  Pseudognaphalium microcephalum D. F. Howe 1964-8-13 3958 San Mateo Near ocean on #1; near San Francisco Co. line. Comment
  JROH6200  Pseudognaphalium ramosissimum John Rawlings 2017-9-12 2295 San Mateo Jasper Ridge Biological Preserve, Stanford University; east bank of Bear Creek 82 Comment
  CAS-BOT-BC344868  Pseudognaphalium stramineum Peter Rubtzoff 1975-10-11 8422 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC357575  Pseudognaphalium stramineum E. M. Zeile 1921-7-30 s.n. San Mateo Salada Comment
  CAS-BOT-BC361572  Pseudognaphalium stramineum 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-BC361569  Pseudognaphalium stramineum George Oberlander 1949-7-30 327 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  UCD135229  Pseudognaphalium stramineum Lewis S. Rose 1966-8-6 66079 San Mateo San Bruno Mountain, head of Colma Canyon. 121 Comment
  UCR201596  Pseudotsuga menziesii June Latting 1972-4-21 s.n. San Mateo Central Coast, Santa Cruz Mountains, Pseudotsuga study site 777 Comment
  JROH124  Pseudotsuga menziesii var. menziesii John H. Thomas 1970-1-1 15492 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS27364  Psilocarphus tenellus Rimo Bacigalupi with J. Roof and L. Heckard 1961-4-24 7624 San Mateo just e KRON television tower and station (below and se of end of paved ridge-top road on Guadalupe Valley side of summit San Bruno Mountain); on Guadalupe Valley side of summit of San Bruno Mountain 304 Comment
  JROH1182  Psilocarphus tenellus John H. Thomas 1971-4-21 15764 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
  JROH1198  Psilocarphus tenellus John Hunter Thomas 1992-5-5 25217 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam and vicinity Comment
  CAS-BOT-BC362021  Psilocarphus tenellus Elizabeth McClintock 1965-4-11 s.n. San Mateo San Bruno Mountain. Crocker Hills. Near Guadalupe Road Comment
  JROH1183  Psilocarphus tenellus D. E. Breedlove 1971-5-5 19326 San Mateo Jasper Ridge Biological Preserve, Stanford University; on bluff above San Francisquito Creek, 500 yards below Searsville Dam Comment
  UCR143149  Psilocarphus tenellus var. tenellus L. S. Rose 1933-5-3 33140 San Mateo Montara 305 Comment
  SD58312  Puccinellia nutkaensis Alan A. Beetle 1946-6-4 4278 San Mateo on S.F. Bay margin; San Mateo Bridge approach, San Mateo City limits Comment
  RSA0082793  Pyrola aphylla S. S. Tillett, I. Sternback 1956-6-24 532 San Mateo Middleton property, behind (n.) Portola Camp Store, just outside Portol State Park. 396 Comment
  POM192780  Quercus X morehus W. R. Dudley 1904-4-10 s.n. San Mateo Goat Ranch Road near Alpine Road, Black Mountain, Santa Cruz Mountain Peninsula. Comment
  UC1135331  Quercus agrifolia C. M. Belshaw 1935-1-25 1457 San Mateo 2.8 mi w Woodside (on King Mt Road); Santa Cruz Quad. 457 Comment
  UCD23291  Quercus agrifolia Alan T. Whittemore 1976-5-29 103 San Mateo Intersection of Polyhemus Creek Road and Ticonderoga Street, San Mateo. 140 Comment
  UCD45030  Quercus agrifolia J. M. Tucker 1946-3-2 1373 San Mateo Tree on a hillside, associated with Q. wislizenii; about 4 miles east of Pescadero, San Mateo County, California. Comment
  UCD45039  Quercus agrifolia R. E. Dengler 1960-4-10 10 San Mateo Tree ca. 7 meters tall; 15 degrees west-facing slope near bottom of gully, 10 meters away from permanent spring below, elevation 525 feet; Jasper Ridge, Standford Biological Reserve, San Mateo County, California. 160 Comment
  SEINET12027457  Quercus agrifolia L. S. Rose 1938-1 38313 San Mateo 122 Comment
  SEINET12034175  Quercus agrifolia Unknown 1929-1 7299 San Mateo Kings Mtn Comment
  JROH2459  Quercus agrifolia var. agrifolia John H. Thomas 1971-4-21 15769 San Mateo Jasper Ridge Biological Preserve, Stanford University; at bridge Comment
  JROH5868  Quercus agrifolia var. agrifolia David Y. Hollinger 1980-12-17 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2467  Quercus chrysolepis H. J. Dengler 1973-4-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; gully which drains into Searsville Lake Comment
  POM270122  Quercus douglasii Lyman Benson 1932-8-1 4033 San Mateo Stanford University. 122 Comment
  CAS-BOT-BC94271  Quercus durata Ned Cahill 1974-4-19 143 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC94272  Quercus durata Ned Cahill 1975-1-18 399 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC94284  Quercus durata W. R. Dudley 1909-4-27 s.n. San Mateo between Woodside and Crystal Springs Lake Comment
  CAS-BOT-BC94285  Quercus durata W. R. Dudley 1894-3-24 s.n. San Mateo By farm road to O'Brien McDonough Ranch, near Portola Comment
  SEINET12034352  Quercus durata Unknown 1930-1 7294 San Mateo ridges near Searsville Lake Common Chaparral Comment
  JROH2482  Quercus durata var. durata John H. Thomas 1968-5-22 14458 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS48850  Quercus kelloggii James G. Daly 1934-1 545 San Mateo near crossroads of Skyline Blvd. and La Honda road (watershed of San Gregorio Creek); Santa Cruz Mts., San Gregorio Creek Comment
  JROH2496  Quercus kelloggii A. D. E. Elmer 1903-5-1 4520 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  JROH2500  Quercus kelloggii John H. Thomas 1959-4-5 7664 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2501  Quercus kelloggii John H. Thomas 1959-4-5 7664 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2509  Quercus kelloggii John Hunter Thomas 1987-5-26 24323 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD46676  Quercus kelloggii Ira L. Wiggins 1946-5-2 s.n. San Mateo La Honda road, above Searsville Reservoir, San Mateo County, California. 457 Comment
  SEINET3523079 Image available Quercus kelloggii Unknown 1932-10-12 32670 San Mateo Hill slopes, Kings Mountain. Comment
  RSA81914  Quercus parvula var. shrevei E. K. Balls, P. C. Everett 1953-10-16 18681 San Mateo Hwy 5, 30.8 miles southeast of San Francisco-San Mateo county line. 762 Comment
  CAS-BOT-BC134793  Quercus wislizeni H. L. Mason 1929-12-1 s.n. San Mateo Swanton Comment
  CAS-BOT-BC134782  Quercus wislizeni W. R. Dudley 1903-5-1 s.n. San Mateo Santa Cruz Peninsula. Alpine Road N of Myer's Place Comment
  JROH5864  Quercus wislizeni var. frutescens Toni Corelli 2003-2-21 257 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail c Comment
  CAS-BOT-BC362543  Rafinesquia californica Fred Hemphill 1973-5-6 782 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  POM290129  Rafinesquia californica Lyman Benson 1937-6-27 8391 San Mateo Summit west of Belmont; Santa Cruz Mt. Range; S. F. Bay Watershed. 152 Comment
  CAS-BOT-BC389716  Ranunculus Sharon Rogers 1966-4-23 s.n. San Mateo Field east of Canada Road, between North and South Gates of Filoli Estate Comment
  CAS-BOT-BC379190  Ranunculus aquatilis var. aquatilis W. R. Dudley 1906-6-10 s.n. San Mateo pond by North Cahill Ridge Road Comment
  CAS-BOT-BC379083  Ranunculus aquatilis var. diffusus George Oberlander 1950-7-15 1115 San Mateo Marsh, San Andreas Lake Comment
  SEINET3816595 Image available Ranunculus bloomeri Lewis S. Rose 1934-3-11 34051 San Mateo Visitacion Valley. Comment
  RSA268419  Ranunculus californicus Lyman Benson 1929-3-16 1013 San Mateo Crystal Springs Lake, Spring Valley Comment
  POM268178  Ranunculus californicus Lyman Benson 1930-5-3 2101 San Mateo Santa Cruz Mt. 244 Comment
  CAS-BOT-BC378537  Ranunculus californicus var. californicus John H. Thomas 1964-4-30 10357 San Mateo San Bruno Mountain in northern part of county 00000000000000000000000 396 Comment
  RSA0005416  Ranunculus californicus var. cuneatus Lyman Benson 1931-3-3 2618 San Mateo Moss Beach. 15 Comment
  UC575705  Ranunculus hebecarpus Lewis S. Rose 1935-5-1 35136 San Mateo Redwood City Comment
  JROH3490  Ranunculus hebecarpus John Hunter Thomas 1987-4-10 24187 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC162558  Ranunculus muricatus Harley P. Chandler 1901-3-15 798 San Mateo marshes w Colma; Region of San Francisco Bay Comment
  CAS-BOT-BC74341  Raphanus sativus Javier Penalosa 1963-2-23 2663 San Mateo San Bruno Mountain. Ravine south of Crocker Avenue. 213 Comment
  UC1071558  Rhamnus californica T. Tyrrell 1928-9-26 9 San Mateo 2 mi s San Gregorio; Santa Cruz Quad. 91 Comment
  POM243722  Rhamnus crocea Carl B. Wolf 1928-3-16 1540 San Mateo Jasper ridge, near Searsville Lake Comment
  CAS-BOT-BC56672  Rhododendron occidentale W. R. Dudley 1895-6-6 s.n. San Mateo Near Iverson's on Upper Pescadero Creek Comment
  CAS-BOT-BC437975  Ribes E. A. McGregor 1908-3-9 s.n. San Mateo Coal Mine Ridge Comment
  JEPS49330  Ribes californicum W. L. Jepson 1922-3-19 9540 San Mateo Lake San Andreas Comment
  UC11498  Ribes californicum J. Burtt Davy 1895-4-21 1058 San Mateo Pilarcitos Creek Comment
  CAS-BOT-BC93000  Ribes californicum var. californicum Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Buckeye Canyon. Comment
  RSA0025027  Ribes divaricatum var. pubiflorum A. D. E. Elmer 1903-05 4511 San Mateo Searsville Lake Comment
  CAS-BOT-BC173467  Ribes malvaceum A. D. E. Elmer 1903-3-1 535 San Mateo Portola Comment
  RSA0021679  Ribes malvaceum L. S. Rose 1933-3-2 33006 San Mateo Belmont. Comment
  CAS-BOT-BC212809  Ribes menziesii A. D. E. Elmer 1903-4-1 4496 San Mateo Portola Comment
  CAS-BOT-BC212812  Ribes menziesii Fred Hemphill 1973-4-22 793 San Mateo San Carlos, north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC212825  Ribes menziesii Josephine D. Randall 1901-6-8 366 San Mateo Portola Valley Comment
  CAS-BOT-BC212830  Ribes menziesii George Oberlander 1950-3-11 495 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC144635  Ribes sanguineum var. glutinosum W. R. Dudley 1900-3-18 s.n. San Mateo Below San Andreas Lake and above head of Crystal Springs Lake Comment
  CAS-BOT-BC144649  Ribes sanguineum var. glutinosum W. R. Dudley 1904-3-1 62 San Mateo Corte de Madera Creek, Santa Cruz Mts Comment
  JROH2685  Ribes sanguineum var. glutinosum John Hunter Thomas 1985-4-25 23556 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway. Comment
  CAS-BOT-BC144644  Ribes sanguineum var. glutinosum Reed C. Rollins 1941-3-16 2945 San Mateo dry ravine, west slope of the Santa Cruz Mts., about 35 miles south of San Francisco Comment
  RSA0019094  Ribes sanguineum var. glutinosum A. D. E. Elmer 1903-03 4470 San Mateo Portola Comment
  RSA0019105  Ribes sanguineum var. glutinosum D. D. Keck 1932-6-1 1786 San Mateo 3 miles north of La Honda, Santa Cruz Mountains. 366 Comment
  RSA0019110  Ribes sanguineum var. glutinosum Lyman Benson 1929-3-5 976 San Mateo King s Mountain. Comment
  CAS-BOT-BC168726  Ribes victoris Eric Walther 1919-8-1 s.n. San Mateo Woodside Comment
  RSA144510  Ricinus communis John H. Thomas 1960-11-11 8925 San Mateo Along Skyline Blvd., 1.1 mile S. of intersection of Skyline Blvd. and Millbrae Avenue. Comment
  RSA176748  Rigiopappus leptocladus John H. Thomas 1963-5-15 10089 San Mateo Jasper Ridge Biological Experimental Area. 5 miles SW of Palo Alto Comment
  CAS-BOT-BC363092  Rigiopappus leptocladus L. R. Abrams 1910-5-7 s.n. San Mateo Santa Cruz Mountain Peninsula. Between Woodside and Crystal Springs Lakes Comment
  SBBG29827  Romanzoffia suksdorfii W. R. Dudley 1909-4-27 San Mateo ponds between Woodside and Crystal Springs Reservoir Comment
  CAS-BOT-BC74649  Rorippa curvisiliqua W. R. Dudley 1906-6-10 s.n. San Mateo Santa Cruz Mountain Peninsula. South Cahil Ridge. Comment
  CAS-BOT-BC74650  Rorippa curvisiliqua W. R. Dudley 1908-6-19 s.n. San Mateo Santa Cruz Mountain Peninsula. Edge of Earthquake Pond east of Jersey Pond west of Baden. Comment
  JROH1584  Rorippa palustris subsp. palustris John Hunter Thomas 1979-9-9 19722 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of Searsville Lake Comment
  CAS-BOT-BC146355  Rosa J. Ed. McClellan; Bonnie McClellan 1968-6-1 s.n. San Mateo Butano Fire Trail between Cloverdale Rd. & west boundary of Butano State Park Comment
  CAS-BOT-BC147620  Rosa californica L. R. Abrams 1914-6-2 5114 San Mateo Los Trancos Creek Comment
  RSA246188  Rosa gymnocarpa E. K. Balls 1969-9-18 12174 San Mateo 6 miles S from jct (crossing) of Hwy 84 with Hwy 35 along the La Honda [road?]. Beside San Gregorio Creek. Comment
  CAS-BOT-BC146704  Rosa gymnocarpa Elizabeth McClintock 1965-3-28 s.n. San Mateo Romanzoffia Ravine Comment
  JROH3757  Rosa gymnocarpa var. gymnocarpa W. R. Dudley 1893-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC146800  Rosa multiflora Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1988-7-28 s.n. San Mateo unspecified Comment
  CAS-BOT-BC152834  Rubus parviflorus A. D. E. Elmer 1903-6-1 4294 San Mateo Alpine School House Comment
  CAS-BOT-BC152874  Rubus parviflorus Gertrude Anthony 1904-4-23 s.n. San Mateo Goat Ranch Road, near Corte Madera - Santa Cruz Mountain Peninsula 243 Comment
  JROH3770  Rubus parviflorus John H. Thomas 1970-5-16 15632 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC311143  Rubus parviflorus A. D. E. Elmer June, 1903 4294 San Mateo Alpine School House Comment
  RSA128601  Rubus parviflorus var. velutinus Peter H. Raven 1950-4-30 1982 San Mateo Montara Mtns. Ca 1/2 mile N of Montara. 91 Comment
  CDA26335  Rubus spectabilis R. J. Pummer 1992-6-8 San Mateo Farwell Nursery, Woodside. 0 Comment
  CAS-BOT-BC157070  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6055 San Mateo Near Pescadero Comment
  CAS-BOT-BC157076  Rubus ursinus L. R. Abrams 1914-10-14 5130 San Mateo At Tunitas Comment
  CAS-BOT-BC157088  Rubus ursinus Robert Robertson 1954-5-1 129 San Mateo Near San Gregorio Creek 6 Comment
  JROH3779  Rubus ursinus John H. Thomas 1977-4-29 18574 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR12025  Rumex acetosella Coleta A. Lawler 1964-4-19 55 San Mateo 4.5 miles east of Half Moon Bay; Pilarcitos Rd, 0.5 mi NE jct Half Moon Bay Rd. 76 Comment
  CAS-BOT-BC422084  Rumex acetosella Ira L. Wiggins 1928-3-25 2945 San Mateo Moss Beach Comment
  CAS-BOT-BC422091  Rumex acetosella Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Slope above Hillside Blvd., South San Francisco. Comment
  RSA17951  Rumex acetosella Carl B. Wolf 1927-6-4 s.n. San Mateo Summit of La Honda Grade (Pollen for Dr. Malsger - San Francisco) San Mateo County Comment
  JROH3296  Rumex conglomeratus John Hunter Thomas 1990-2-6 24867 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC421820  Rumex conglomeratus Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  CAS-BOT-BC433361  Rumex crispus Josephine D. Randall 1907-7-23 291 San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake. Comment
  SEINET4182631  Rumex maritimus var. persicarioides K. Thorne, J. chandler 1986-7-25 4948 San Mateo Half Moon Bay, 2 miles south of Moss Beach at Dune Beach Comment
  CAS-BOT-BC434000  Rumex salicifolius David D. Keck 1932-5-6 1457 San Mateo Belmont Comment
  JROH5731  Rumex salicifolius John Rawlings 2013-5-21 1198 San Mateo Jasper Ridge Biological Preserve, Stanford University; moist ditch along east side of road E opposite intersection of trail 14 116 Comment
  SD38936  Rumex salicifolius Edith A. Purer 1933-7-27 5357 San Mateo High stabilized sand dunes, Pigeon Point Comment
  UC1191283  Rumex salicifolius var. transitorius Malcolm A. Nobs and S. Galen Smith 1949-8-26 1582 San Mateo about 1 mi s Half Moon Bay Comment
  RSA112462  Rupertia physodes Ynez Henderson 1920-05 s.n. San Mateo Near Searsville Lake. Comment
  RSA112461  Rupertia physodes Paul R. Hichborn 1920-5-3 174 San Mateo San Francisquito Creek near Searsville. Comment
  RSA169526  Ruppia cirrhosa H. E. Parks 1928-10 s.n. San Mateo Laguna Salada. Comment
  UC279586  Ruppia maritima W. A. Setchell 1925-8-29 San Mateo Laguna de Salada Comment
  UC279588  Ruppia maritima W. A. Setchell 1925-8-29 San Mateo Laguna de Salada Comment
  UC583143  Ruppia maritima Lewis S. Rose 1936-9-6 36724 San Mateo Granada 1 Comment
  UC1191404  Salicornia virginica Malcolm A. Nobs and S. Galen Smith 1949-8-26 1601 San Mateo mouth of Pescadero Creek Pescadero Creek Comment
  JROH3858  Salix laevigata Toni Corelli 2002-11-18 250 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 21, West side of Searsville Lake on lake trail that is east of the Field Station 106 Comment
  POM216557  Salix laevigata D. D. Keck 1932-3-6 1392 San Mateo Searsville Lake. Comment
  CAS-BOT-BC125367  Salix lasiandra var. lasiandra Peter H. Raven 1964-9-13 19671 San Mateo Half Moon Bay Comment
  JROH3872  Salix lasiandra var. lasiandra John H. Thomas 1971-4-21 15768 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3873  Salix lasiandra var. lasiandra John H. Thomas 1971-4-21 15768 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU7516  Salix lasiandra var. lasiandra Lewis S. Rose 1965-3-8 65002 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC107139  Salix lasiolepis W. R. Dudley 1904-3-7 68 San Mateo Bear Gulch, Santa Cruz Mt. - Santa Cruz Peninsula 152 Comment
  CAS-BOT-BC166940  Salix lasiolepis Peter Rubtzoff 1976-3-14 8446 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  JROH3862  Salix lasiolepis Lewis S. Rose 1965-3-8 65004 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake stream banks Comment
  JROH3863  Salix lasiolepis John H. Thomas 1967-3-26 12415 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI9820  Salix lasiolepis Lewis S. Rose 1965-3-8 65004 San Mateo Searsville Lake 122 Comment
  RSA788838  Salix lasiolepis Peter Rubtzoff 1976-3-14 8446 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  UCD164611  Salix lasiolepis Peter Rubtzoff 1975-10-24 8433 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  JROH3854  Salix lasiolepis John H. Thomas 1968-3-17 14176 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5884190 Image available Salix lasiolepis L. S. Rose 1965-1 65004 San Mateo Searsville Lake. 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
  CAS-BOT-BC124362  Salix lasiolepis var. lasiolepis David D. Keck 1932-1-29 1358 San Mateo Colma Creek, at Cypress Lawn Cemetery, northern San Mateo County Comment
  CAS-BOT-BC124481  Salix lasiolepis var. lasiolepis Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo Comment
  CAS-BOT-BC124494  Salix lasiolepis var. lasiolepis Margaret A. Barry 1938-5-6 s.n. San Mateo Los Trancos Creek near Coal Mine Ridge Comment
  RSA184900  Salix lucida subsp. lasiandra L. S. Rose 1965-3-16 65007 San Mateo Searsville Lake. 122 Comment
  SBBG33942  Salix lucida subsp. lasiandra L. S. Rose 1965-3-8 65002 San Mateo Searsville Lake 121 Comment
  SEINET3158751  Salix scouleriana L. S. Rose 1934-2-10 34025 San Mateo Skyline blvd. 4 mi S Kings Mtn. Comment
  UC846969  Salix scouleriana Lewis S. Rose 1934-2-10 34025 San Mateo Skyline Blvd. 4 mi. s. of King's Mt. Comment
  CAS-BOT-BC126478  Salix sitchensis W. R. Dudley 1903-5-2 s.n. San Mateo Near Redwood Villa, La Honda Comment
  CAS-BOT-BC126480  Salix sitchensis Josephine D. Randall 1908-3-28 s.n. San Mateo [King's] Kings Mt. Road Comment
  CAS-BOT-BC126486  Salix sitchensis Walter Knight; Irja Knight 1965-2-28 866 San Mateo San Bruno Mt., in Colma Canyon Comment
  CAS-BOT-BC126517  Salix sitchensis W. R. Dudley 1900-3-17 s.n. San Mateo Below Pilar Point Comment
  CAS-BOT-BC126518  Salix sitchensis George Oberlander 1950-3-11 820 San Mateo San Mateo Creek Comment
  CAS-BOT-BC166960  Salix sitchensis Peter Rubtzoff 1975-10-11 8426 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  POM167784  Salix sitchensis C. F. Baker 1902-3-18 390 San Mateo King's Mountain Comment
  CDA3229  Salsola soda W. Anderson 1968-8-16 San Mateo West end of Dumbarton Bridge. 0 Comment
  POM62858  Salvia columbariae Edward L. Greene 1902-4-6 s.n. San Mateo Crystal Springs Lake, San Mateo County. Comment
  UC634908  Salvia spathacea H. L. Mason 1928-2-22 4160 San Mateo Mt. San. Bruno Comment
  SJSU11396  Salvia spathacea G. I. Tourtlotte 1968-5-19 San Mateo S side of Guadalupe Canyon, San Bruno Mt Comment
  POM284212  Sambucus caerulea Lyman Benson 1933-6-14 4447 San Mateo Menlo Park 61 Comment
  CAS-BOT-BC236451  Sambucus racemosa subsp. racemosa Philip Wheeler 1965-5-18 s.n. San Mateo Base of mountain near Olivet Cemetery, San Bruno Mountain Comment
  CAS-BOT-BC235073  Sambucus racemosa var. racemosa A. D. E. Elmer 1903-5-1 4663 San Mateo Butano Creek Comment
  CDA33763  Sanicula arctopoides D. G. Kelch 2011-3-13 11 .05 San Mateo Pacifica. Along sea bluffs Comment
  UC1598748  Sanicula arctopoides Ivar Tidestrom 1894-3-22 San Mateo Comment
  JROH321  Sanicula bipinnatifida Anne Hornby 1952-4-12 63 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  JROH328  Sanicula crassicaulis Ynez Henderson 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  RSA176825  Sanicula crassicaulis John H. Thomas 1961-5-5 9212 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  UCR122971  Sanicula laciniata George K. Helmkamp, E. A. Helmkamp 2001-6-2 6774 San Mateo San Francisco Bay Region, Purisima Creek Road, east of Half Moon Bay at Purisima Creek, 3.2 miles east of CA Hwy 1 244 Comment
  UC1601284  Satureja douglasii Lewis S. Rose 1933-6-9 33220 San Mateo 3 mi w San Bruno 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
  SD37482  Schoenoplectus pungens var. badius Edith A. Purer 1933-7-27 5391 San Mateo Moist place in the sand dunes, 2 miles south of Pigeon Point. Comment
  UC652556  Scirpus cernuus Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9290 San Mateo Ano Nuevo Point Comment
  SEINET3914303  Scirpus cernuus var. californicus Lewis S. Rose 1948-12-3 48242 San Mateo Ocean Shore Blvd., 6 mi. S of San Francisco Co. line.; 0 Comment
  UCD141269  Scirpus microcarpus Herbert L. Mason; Verne Grant 1946-8-28 13093 San Mateo one mile west of San Bruno between Santa Cruz and Daly City on Highway 5. Comment
  CAS-BOT-BC519013  Scoliopus bigelovii Lewis S. Rose 1964-2-6 64000 San Mateo Kings Mountain 609 Comment
  SEINET12050532  Scoliopus bigelovii F. H. Utech 1988-1 88 -142 San Mateo 0.5 mi from jct of Kings Mt. Rd & CA 35 on former enroute to Woodside, Skyline Hiking Trail & jct 580 Comment
  CAS-BOT-BC363223  Scolymus hispanicus T. C. Fuller 1965-7-8 13755 San Mateo D. McBryde prop., 140 Eleanor Dr., Woodside Comment
  JROH4121  Scrophularia californica W. R. Dudley 1895-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  RSA152269  Scrophularia californica John H. Thomas 1961-5-7 9301 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  RSA46817  Scrophularia californica Doris K. Kildale 1929-6-19 8011 San Mateo 1.5 miles from La Honda. Comment
  CHSC57003  Scrophularia californica subsp. californica Steven Triano 1988-5-24 179 San Mateo Along w side of Old La Honda Road ca 0.8 mi s of Portola Road and 4.0 mi s of Woodside. 201 Comment
  UCR121556  Scrophularia californica subsp. californica George K. Helmkamp, E. A. Helmkamp 1999-6-28 4980 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  JROH2883  Scutellaria tuberosa Hester R. Davis 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM64273  Scutellaria tuberosa C. F. Baker 1902-4-4 447 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC59051  Sedum spathulifolium Phillip C. Wheeler 1965-7-8 s.n. San Mateo Canyon adjacent to quarry, San Bruno Mountain Comment
  CAS-BOT-BC59052  Sedum spathulifolium Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain, below parking lot on the top of the mountain. Comment
  CAS-BOT-BC59274  Sedum spathulifolium C. F. Baker 1902-5-27 3198 San Mateo Foothills near Stanford Cal Comment
  CAS-BOT-BC59275  Sedum spathulifolium A. D. E. Elmer 1903-6-1 4550 San Mateo Crystal Springs Lake, Toward San Mateo Comment
  CAS-BOT-BC363394  Senecio aronicoides A. D. E. Elmer 1903-5-1 4508 San Mateo San Bruno Hills Comment
  CAS-BOT-BC363400  Senecio aronicoides A. A. Heller 1907-4-20 8448 San Mateo Near Lake Merced 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
  JROH1220  Senecio aronicoides John H. Thomas 1969-5-28 15082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1221  Senecio aronicoides D. E. Breedlove 1971-5-31 19356 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  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
  UC311548  Senecio aronicoides A. D. E. Elmer May 1903 4508 San Mateo San Bruno Hills Comment
  RSA0012756  Senecio aronicoides C. F. Baker 1902-5-4 746 San Mateo Woodside. Comment
  RSA0012763  Senecio aronicoides C. F. Baker 1903-4-6 1900 San Mateo San Bruno Hills, San Francisco. [San Mateo] Comment
  SEINET5571345  Senecio aronicoides H. S. Gentry 1931-1 103 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  UC1219871  Senecio glomeratus J. H. Thomas 1961-5-7 9275 San Mateo San Bruno Mountain 304 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
  CAS-BOT-BC364630  Senecio vulgaris Ira L. Wiggins 1973-6-24 22030 San Mateo Bed of San Francisquito Creek, about 60 m above Pope Street bridge, along line between Santa Clara and San Mateo Counties Comment
  POM176867  Sequoia sempervirens E. G. Dudley 1904-1-21 74 San Mateo Santa Cruz Peninsula: Canada de Raymundo, Santa Cruz Mountains 274 Comment
  RSA181221  Sequoia sempervirens John H. Thomas 1964-11-29 10542 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto; along San Francisquito Creek below dam. Comment
  RSA170453  Sequoia sempervirens Mark Parratt 1963-2-2 512 San Mateo Santa Cruz Mountains; Big Basin Redwoods State Park, near park headquarters 183 Comment
  CDA33644  Sesbania punicea Robin Breckenridge 2010-7-2 PDR# 1313483 San Mateo East Palo Alto; Cooley Ave. 0 Comment
  JROH5464  Setaria viridis John Rawlings 2005-9-28 1008 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera Creek. 110 Comment
  JROH3836  Sherardia arvensis John Hunter Thomas 1989-5-11 24741 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB18832  Sherardia arvensis Schulte, John 1963-4-28 San Mateo 3 miles SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz mountains 152 Comment
  SBBG30046  Sidalcea diploscypha L. S. Rose 1948-5-16 San Mateo Emerald Lake, hills W of Redwood City 152 Comment
  UCD116624  Sidalcea diploscypha Ellen Phillips 1977-4-30 9 San Mateo east of Canada College across Farmhill Boulevard. Redwood City. 304 Comment
  UCD116803  Sidalcea malviflora Gerald W. Sodomka 1963-5-5 36 San Mateo Moss Beach. 30 Comment
  CAS-BOT-BC205603  Sidalcea malviflora Dean Wm. Taylor 1988-3-30 9468 San Mateo Santa Cruz Mountains. San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest. Right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 237 Comment
  JEPS127779  Sidalcea malviflora subsp. laciniata Adam C. Schneider with C. Matt Guilliams 2013-3-9 32 San Mateo Comment
  POM61910  Sidalcea malviflora subsp. laciniata A. D. E. Elmer 1903-05 4687 San Mateo San Bruno Hills. Comment
  RSA187474  Sidalcea malviflora subsp. malviflora John H. Thomas 1964-4-30 10360 San Mateo San Bruno Mtn in northern part. Northern Coastal Scrub of Munz and Keck 305 Comment
  UC1327248  Sidalcea malviflora subsp. malviflora John T. Doyen 1966-3-28 29 San Mateo near Radio Towers at top (San Bruno Mountain); , near Radio Towers at top Comment
  POM282904  Sidalcea malviflora subsp. malviflora Lyman Benson 1931-4-26 2760 San Mateo Behind Stanford U., Brookside Park, Santa Cruz mtn range. 244 Comment
  CHSC22898  Sidalcea malviflora subsp. rostrata Robert A. Schlising 1963-2-23 2434 San Mateo California Coast Ranges. 21 miles north of Davenport, along highway 1. Comment
  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
  POM286434  Silene gallica Lyman Benson 1931-4-26 2762 San Mateo Behind Stanford U., Brookside Park, Santa Cruz mtn range. 244 Comment
  UCD98646  Silene gallica W. A. Harvey; J. M. Tucker 1948-6-28 1696 San Mateo 3 miles north of Pescadero. Comment
  CAS-BOT-BC389194  Silene laciniata subsp. californica A. D. E. Elmer 1903-6-1 4446 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC175276  Silene verecunda Elizabeth McClintock; Paul Reeberg 1988-8-12 s.n. San Mateo Grassland near Summit. San Bruno Mountains Comment
  CAS-BOT-BC389896  Silene verecunda Dean Wm. Taylor 1988-4-8 9505 San Mateo Santa Cruz Mountains. San Bruno Mountain, summit of mountain, near the parking lot at the eastern extent of public road access Comment
  CAS-BOT-BC75378  Sisymbrium orientale Walter Knight; Irja Knight 1965-4-11 s.n. San Mateo San Bruno Mountains. Guadalupe Road about 0.5 mile from Radio Road. Comment
  SEINET3558360 Image available Sisyrinchium bellum David D. Keck 1932-5-6 1467 San Mateo Belmont, Belmont. Comment
  RSA120320  Sisyrinchium bellum S. S. Tillett, I. Sternback 1956-6-24 541 San Mateo Behind (n.) Portola Camp Store, just outside Portola State Park 396 Comment
  SEINET5571633  Sisyrinchium bellum H. S. Gentry 1931-1 6 San Mateo Collected 1.5 miles west of San Mateo, Half-moon Bay road. 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
  SEINET5571650  Smilacina racemosa H. S. Gentry 1931-1 San Mateo Comment
  RSA22959  Solanum douglasii L. R. Abrams, I. L. Wiggins 1939-6-3 425 San Mateo Ano Nuevo Point. Comment
  SEINET12274723  Solanum douglasii M. T. Doutt 1931-1 s.n. San Mateo Ano Nuevo Pt Comment
  RSA152273  Solanum furcatum John H. Thomas 1961-5-7 9302 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  RSA34830  Solanum physalifolium var. nitidibaccatum I. L. Wiggins 1945-9-22 11196 San Mateo Moss Beach. Comment
  CAS-BOT-BC157036  Solanum umbelliferum L. Abrams 1914-4-2 5073 San Mateo Woodside Comment
  CAS-BOT-BC157631  Solanum umbelliferum B. 1902-1-15 234 San Mateo West side King's Mt. 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
  CAS-BOT-BC58482  Solanum umbelliferum R. C. Rollins 1941-3-16 2944 San Mateo E slope of Kings Mountain about 6 miles W of Woodside, Santa Cruz Mts. Comment
  JROH4185  Solanum umbelliferum John H. Thomas 1956-4-7 5603 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA127358B  Solanum umbelliferum Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mts. overlooking Daly City near San Francisco. Comment
  CAS-BOT-BC154181  Solanum umbelliferum H. A. Dutton 1900-2-11 s.n. San Mateo Woodside, on Jasper 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
  UCD40949  Solanum wallacei J. Skoss 1948-8-22 113 San Mateo San Vincente Canyon, near Montara. Comment
Read comments
Aug 8 2007
  CAS-BOT-BC365744  Solidago spathulata Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Motorcycle Ridge Comment
  CAS-BOT-BC365749  Solidago spathulata John H. Thomas 1961-5-12 9331 San Mateo San Bruno Mountain in northern part of county 396 Comment
  SEINET9319779  Solidago spathulata Unknown 1948-8-22 121 San Mateo San Vicente Canyon Comment
  UCD18352  Solidago spathulata J. Skoss 1948-8-22 121 San Mateo San Vicente Canyon. Comment
  CAS-BOT-BC365924  Soliva sessilis W. R. Dudley 1895-6-6 s.n. San Mateo Santa Cruz Peninsula. Near Pescadero Creek Comment
  JEPS15054  Sonchus asper L. R. A. 1901-3-16 1144 San Mateo Menlo Park Comment
  CAS-BOT-BC374710  Sonchus oleraceus Walter Knight; Irja Knight 1964-4-25 691 San Mateo San Bruno Mountain. Upper part of ravine adjacent to Radio Rd. Comment
  JROH5585  Sparganium eurycarpum var. eurycarpum John Rawlings 2012-7-9 1201 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Near upper lake (west of Portola Rd.) adjacent to power line right-of-way. 106 Comment
  JROH5529  Sparganium eurycarpum var. eurycarpum John Hunter Thomas 1990-6-7 24866 San Mateo Jasper Ridge Biological Preserve, Stanford University; boat ramp near bridge over the 2 halves of Searsville Lake Comment
  CAS-BOT-BC236624  Spartina foliosa Le Roy Abrams 1900-10-1 1015 San Mateo Cooley Landing Comment
  CAS-BOT-BC236629  Spartina foliosa Ray Pestrong 1963-11-8 s.n. San Mateo In the marsh near East Palo Alto, Dumbarton Bridge, South San Francisco Bay Comment
  SACT002295  Spartina foliosa Malcolm Nobs, S. Smith 1949-8-27 San Mateo Salt marches east of Redwood City. Comment
  CAS-BOT-BC390009  Spergula arvensis John H. Thomas 1961-5-7 9247 San Mateo Colma. Field near intersection of El Camino Real and F Street 45 Comment
  RSA65493  Spergula arvensis Mabel Peirson 1926-2-24 6520 San Mateo Moss Beach. Comment
  CAS-BOT-BC390012  Spergula arvensis Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain. April Brook Comment
  JROH1746  Spergula arvensis John Hunter Thomas 1981-4-7 20297 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  JROH1748  Spergula arvensis John Hunter Thomas 1985-4-10 23512 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  CAS-BOT-BC390199  Spergularia bocconi R. I. Gilbreath 1975-8-1 0084 San Mateo In school yard on Alberta Way, Hillsborough 167 Comment
  UCD169488  Spergularia macrotheca Dr. E. B. Copeland 1903-6-5 3317 San Mateo Montara Point. Comment
  CAS-BOT-BC390470  Spergularia macrotheca var. macrotheca W. S. Atkinson 1901-7-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Pescadero Creek Comment
  CAS-BOT-BC390749  Spergularia marina Elizabeth McClintock; Paul Reeberg 1989-6-13 s.n. San Mateo San Bruno Mountains. P.G.&.E. Marsh Comment
  CAS-BOT-BC390919  Spergularia marina John Thomas Howell 1924-9-28 662 San Mateo At the Leslie Salt Refinery Comment
  RSA128560  Spergularia salina P. H. Raven 1950-5-7 2039 San Mateo Moss Beach. Comment
  SEINET3559376 Image available Sphacele calycina Lewis S. Rose 1933-6-9 33225 San Mateo Belmont. Comment
  POM63302  Stachys ajugoides A. D. E. Elmer 1903-06 4260 San Mateo Crystal Springs Lake. Comment
  SD39617  Stachys ajugoides var. ajugoides Edith A. Purer 1933-7-27 5358 San Mateo Pigeon Point Comment
  UCLA70851  Stachys ajugoides var. rigida A. A. Heller 1907-5-28 San Mateo above Crystal Springs (Half Moon Bay road) Comment
  JROH2898  Stachys bullata John H. Thomas 1971-5-30 15977 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  RSA116741  Stachys bullata Josephine Randall 1907-6-8 187 San Mateo Portola Valley. Santa Cruz Peninsula. Comment
  UC100826  Stachys bullata J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  HSC23911  Stachys bullata Mary Katherine Wicksten 1971-6-15 51 San Mateo Huddart Park near residence Comment
  JROH2900  Stachys bullata Herb Dengler 1972-5-28 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; above (W.) of junction of S.F. and Bear Creeks Comment
  RSA116742  Stachys bullata W. R. Dudley s.n. San Mateo El Corte Madera Road, near Stanford University. Comment
  UC1206470  Stachys pycnantha Le Roy Abrams 1902-9-21 2986 San Mateo Crystal Springs. Comment
  RSA446690  Stachys rigida subsp. quercetorum Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mts. overlooking Daly City near San Francisco. Comment
  JROH2894  Stachys rigida var. quercetorum John Hunter Thomas 1978-4-20 19089 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR122976  Stachys rigida var. quercetorum George K. Helmkamp, E. A. Helmkamp 2001-6-2 6768 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  CAS-BOT-BC374794  Stebbinsoseris heterocarpa K. L. Chambers 1952-5-24 418 San Mateo 1.2 mi. towards Woodside from Skyline junction of Woodside-La Honda road, (1.2 mi. e. of Skyline Blvd.). [Locality info from collection label and voucher label combined.] Comment
  RSA478185  Stellaria media Glenn A. Gorelick 1967-4-15 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  CAS-BOT-BC394056  Stellaria media John H. Thomas 1963-5-20 10125 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC394060  Stellaria media Josephine D. Randall 1907-6-8 34 San Mateo Portola Valley; Santa Cruz Peninsula Comment
  CAS-BOT-BC398982  Stellaria nitens H. A. Dutton 1900-3-25 s.n. San Mateo Woodside. Northside of stone fence Comment
  POM259788  Stuckenia pectinata I. L. Wiggins, Roxana S. Ferris 1939-8-2 9293 San Mateo Ano Nuevo Point Comment
  POM313014  Stuckenia pectinata Malcolm A. Nobs, S. Galen Smith 1949-8-25 1552 San Mateo Marshes at Sharp Park. Comment
  CAS-BOT-BC423012  Stylomecon heterophylla A. D. E. Elmer 1903-4-1 4921 San Mateo Spanishtown 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-BC271601  Symphoricarpos albus var. laevigatus Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo East facing slope below parking lot, San Bruno Mountain Comment
  CAS-BOT-BC271648  Symphoricarpos albus var. laevigatus John H. Thomas 1961-5-7 9267 San Mateo San Bruno Mountain in northern part of county 396 Comment
  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
  JROH1687  Symphoricarpos mollis John Rawlings, Ann Lambrecht 2010-5-2 1097 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near west end of Birder's Trail between and parallel Rd. E and Trail 7 150 Comment
  CAS-BOT-BC99063  Symphyotrichum chilense Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain - Dairy Ravine across road from KQED radio tower Comment
  CAS-BOT-BC99058  Symphyotrichum chilense David D. Keck 1930-10-15 989 San Mateo South-west of Woodside 457 Comment
  JEPS40839  Symphyotrichum subspicatum James G. Daly 1934-1-1 320 San Mateo San Gregorio watershed Santa Cruz Mts. Comment
  CDA34524  Tamarix parviflora T. Hyland 2011-3-1 San Mateo CalTrans right of way 100 meters west of gate leading to Cascade Creek mouth. 0 Comment
  UCSB18577  Taraxacum officinale Hutchinson, Sandra 1964-3-22 San Mateo Backyard, 908 Patricia Ave., San Mateo Comment
  UC306535  Tauschia kelloggii A. D. E. Elmer April, 1903 4928 San Mateo Crystal Springs Lake Comment
  UC875689  Tauschia kelloggii Lewis S. Rose 1939-5-5 39092 San Mateo San Mateo Canyon 45 Comment
  RSA159427  Tellima grandiflora John H. Thomas 1961-5-14 9363 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  UC1127673  Tellima grandiflora H. S. Yates 1935-5-8 5213 San Mateo 1.5 mi s Mindego Hill; Santa Cruz Quad. 335 Comment
  CAS-BOT-BC447474  Tellima grandiflora Philip C. Wheeler 1965-5-12 s.n. San Mateo South canyon below western power lines Comment
  CAS-BOT-BC438265  Tetragonia tetragonoides J. H. Thomas 1959-7-8 8015 San Mateo At Pescadero Beach. Comment
  UC634944  Thalictrum fendleri H. L. Mason 1927-4-23 3680 San Mateo summit of road between La Honda and Pescadero Creek Comment
  JROH3504  Thalictrum fendleri var. polycarpum D. D. Davis 1903-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. On Searsville Ridge Comment
  JROH3508  Thalictrum fendleri var. polycarpum John H. Thomas 1961-4-29 9196 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC399839  Thalictrum polycarpum J. H. Thomas 1954-4-3 3834 San Mateo Pilarcitos Creek Road, 3.5 miles NE of Halfmoon [Half Moon] Bay 121 Comment
  CAS-BOT-BC399842  Thalictrum polycarpum A. D. E. Elmer 1903-6-1 4425 San Mateo Butano Creek Comment
  CAS-BOT-BC399845  Thalictrum polycarpum W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Peninsula. Northwest of San Andreas Reservoir Comment
  UC74947  Thermopsis californica var. californica C. F. Baker 1902-5-1 685 San Mateo Crystal Springs Lake Comment
  RSA100996  Thermopsis californica var. californica G. Oberlander 1950-4-16 745 San Mateo East of Lower Crystal Springs Lake, San Francisco Watershed Reserve. Comment
  CAS-BOT-BC66656  Thysanocarpus curvipes J. H. Thomas 1954-5-7 4068 San Mateo Near Skyline Boulevard. About 2 miles southwest of Black Mountain. 655 Comment
  CAS-BOT-BC66659  Thysanocarpus curvipes John H. Thomas 1968-4-13 14290 A San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66674  Thysanocarpus curvipes John H. Thomas 1977-4-2 18507 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66676  Thysanocarpus curvipes Margaret A. Barry 1937-4-21 18 San Mateo On Coal Mine Ridge. Comment
  CAS-BOT-BC66655  Thysanocarpus curvipes H. J. Dengler 1972-4-30 s.n. San Mateo Unspecified. Comment
  CAS-BOT-BC66679  Thysanocarpus curvipes W. R. Dudley 1894-4-11 s.n. San Mateo Santa Cruz Peninsula. Slope near Menlo Park Reservoir. Comment
  CAS-BOT-BC66681  Thysanocarpus curvipes Walter Knight; Irja Knight 1967-5-1 s.n. San Mateo San Bruno Mountain. Owl's Canyon. Comment
  JROH1588  Thysanocarpus curvipes subsp. curvipes John Hunter Thomas 1978-4-8 19059 D San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1592  Thysanocarpus curvipes subsp. curvipes John Hunter Thomas 1981-4-4 20257 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1593  Thysanocarpus curvipes subsp. curvipes John Hunter Thomas 1981-4-7 20299 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH386  Torilis nodosa John Hunter Thomas 1981-5-14 20572 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old shack riders shack Comment
  JROH405  Torilis nodosa John Hunter Thomas 1991-5-9 25043 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3876264 Image available Torreya californica Ira L. Wiggins 1945-5-5 11161 San Mateo Along La Honda Creek about 1 mile above La Honda.; 0 152 Comment
  UC754286  Torreya californica Ira L. Wiggins 1945-5-5 11161 San Mateo about 1 mi above La Honda (along La Honda Creek); La Honda Creek 152 Comment
  JROH4757  Toxicoscordion fremontii Richard L. Garber 1971-5-18 25 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4760  Toxicoscordion fremontii John Hunter Thomas 1980-4-10 19871 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH4296  Tribulus terrestris Toni Corelli 2005-9-14 305 a San Mateo Jasper Ridge Biological Preserve, Stanford University; along road B just west of entrance to Dennis Martin marker site 168 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
  UCSC010359  Trifolium Dylan M. Neubauer 2016-5-19 690 San Mateo (SnFrB) Santa Cruz Mountains, headwaters of Waterman Creek, w of Hwy 9 423 Comment
  UCSC010361  Trifolium Dylan M. Neubauer 2016-5-19 690 San Mateo (SnFrB) Santa Cruz Mountains, headwaters of Waterman Creek, w of Hwy 9 423 Comment
  POM278023  Trifolium albopurpureum Lyman D. Benson 1935-5-5 6527 San Mateo Lake Searsville. 152 Comment
  JROH2234  Trifolium arvense Toni Corelli 2006-5-30 312 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road G, in the center of road that goes to Douglas' iris site, in disturbed area in large mammal camera site 4 111 Comment
  JROH2238  Trifolium barbigerum John H. Thomas 1961-4-29 9176 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU7992  Trifolium bifidum var. bifidum M. S. Hall 1965-5-8 111 San Mateo near canyon bottom, W San Carlos Hills Comment
  RSA120985  Trifolium bifidum var. decipiens G. C. Kimber, Lucile Roush, Clarissa Kimber 1918-4-25 s.n. San Mateo Jasper Ridge Comment
  JROH2256  Trifolium cernuum Toni Corelli 2012-5-15 376 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road J 115 Comment
  RSA120981  Trifolium ciliolatum W. R. Dudley 1904-4-23 s.n. San Mateo Lower part Goat Ranch Road. Comment
  UCR101649  Trifolium dubium George K. Helmkamp, E. A. Helmkamp 1998-5-16 3744 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  SJSU15229  Trifolium fragiferum Toni Corelli 2012-7-12 805 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay 22 Comment
  JEPS101282  Trifolium fucatum Dean W. Taylor 1991-5-20 11792 San Mateo coastal bluffs near south bank of Pescadero Creek at Highway 1 9 Comment
  JROH2287  Trifolium fucatum John H. Thomas 1958-5-10 7148 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2302  Trifolium fucatum John Hunter Thomas 1985-4-11 23522 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2303  Trifolium fucatum John Hunter Thomas 1986-4-9 23928 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG39547  Trifolium fucatum L. S. Rose 1970-4-8 San Mateo Black Mtn, W of San Mateo 121 Comment
  UCSB7299  Trifolium fucatum Walker, Clifford 1954-4-20 San Mateo 50 yds. from ocean, 1 mi. S of Half Moon Bay Comment
  UCSC003369  Trifolium fucatum var. fucatum Randall Morgan 2001-5-9 3730 San Mateo on bluff at San Gregorio State Beach, San Mateo County Comment
  SJSU15444  Trifolium gracilentum var. gracilentum Toni Corelli 2010-5-13 603 San Mateo Pedro Point Headlands, Pacifica, CA, along South Ridge Trail 180 Comment
  JROH2321  Trifolium hirtum John Hunter Thomas 1982-5-18 20942 San Mateo Jasper Ridge Biological Preserve, Stanford University; old road now partly plowed up, near main gate Comment
  CAS-BOT-BC5350  Trifolium macraei Adolph Daniel Edward Elmer 1903-5-1 4812 San Mateo San Pedro Comment
  RSA120982  Trifolium macraei W. R. Dudley s.n. San Mateo Near Colma Comment
  UC1130082  Trifolium microdon H. S. Yates 1935-5-8 5205 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  UCSC006098  Trifolium oliganthum Randall Morgan 1996-5-24 2972 San Mateo Pescadero Creek Comment
  JROH2385  Trifolium variegatum John H. Thomas 1975-4-19 17803 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC006363  Trifolium variegatum Randall Morgan 1995-6-6 2725 San Mateo Group at Bean Hollow State Beach 2.5 mi S of Pescadero Rd. Comment
  RSA349594  Trifolium variegatum var. melananthum L. S. Rose 1937-5-2 37251 San Mateo Burlingame 91 Comment
  HSC100120  Trifolium willdenovii J. Wendell Howe 1930-4-11 San Mateo Menlo Park Comment
  JROH2412  Trifolium willdenovii John Hunter Thomas 1988-4-7 24379 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2413  Trifolium willdenovii John Hunter Thomas 1988-5-3 24446 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA51346  Trifolium wormskioldii Peter H. Raven 1950-4-30 s.n. San Mateo Up a road about 1/2 mile N of Montara. 30 Comment
  UC1140924  Trillium chloropetalum W. R. Dudley 1900-3-16 San Mateo by trail n. of Tripp's Store Woodside; Santa Cruz Peninsula, Woodside Comment
  POM169971  Trillium chloropetalum var. chloropetalum C. F. Baker 1902-3-30 431 San Mateo Crystal Springs Lake. Comment
  RSA15264  Trillium chloropetalum var. chloropetalum Carl B. Wolf 1927-2-27 228 San Mateo Near Pescadero, 1/2 mile inland. Comment
  RSA378201  Trillium chloropetalum var. giganteum D. D. Keck 1932-3-6 1394 San Mateo La Honda road above Searsville Lake, Santa Cruz Mountains. Comment
  CAS-BOT-BC133446  Trillium ovatum J. H. Thomas 1949-3-29 190 San Mateo King's Mountain Comment
  UC672064  Trillium ovatum Herbert L. Mason 1927-4-23 3670 San Mateo La Honda Comment
  UCD139910  Trillium ovatum Janet Jacob 1951-4-1 55 San Mateo 7 miles east of Pescadero. Comment
  RSA15280  Trillium ovatum Carl B. Wolf 1927-4-3 246 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  CAS-BOT-BC238558  Triphysaria floribunda Alice Eastwood 1915-5-6 s.n. San Mateo Burlingame Comment
  CAS-BOT-BC238567  Triphysaria floribunda George Oberlander 1951-3-30 1182 San Mateo San Francisco Watershed Reserve Comment
  CAS-BOT-BC238568  Triphysaria floribunda George Oberlander 1949-4-30 142 San Mateo San Francisco Watershed Reserve Comment
  UC138991  Triphysaria floribunda C. F. Baker 1903-4-8 1926 San Mateo San Andreas Lake Comment
  SEINET7067219  Triphysaria pusilla A. G. Vestal 1947-5-10 s.n. San Mateo Up east side of Jasper Ridge. Coordinate datum: NAD27. UTM Zone 10, 568517mE, 4140222mN. Comment
  JROH4142  Triphysaria pusilla John Hunter Thomas 1983-4-3 21310 San Mateo Jasper Ridge Biological Preserve, Stanford University; old beach near Searsville Lab Comment
  SEINET7076094  Triphysaria versicolor subsp. faucibarbata 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
  JROH5466  Trisetum canescens John H. Thomas 1967-5-12 12869 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5468  Trisetum canescens John Rawlings 2013-4-16 1131 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along the Escobar Gate fence line about 100 m east of the gate. 149 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
  JROH4737  Triteleia hyacinthina John H. Thomas 1967-6-1 12961 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU9940  Triteleia ixioides subsp. ixioides L. S. Chan 1955-6-4 117 San Mateo Kings Mt Rd, 1.5 mi W of Woodside, E slope Santa Cruz Mts 243 Comment
  CAS-BOT-BC526358  Triteleia laxa H. A. Dutton 1900-3-25 s.n. San Mateo Woodside, Santa Cruz Peninsula Comment
  CAS-BOT-BC526367  Triteleia laxa David D. Keck 1932-5-6 1466 San Mateo Belmont Comment
  CAS-BOT-BC526368  Triteleia laxa Ned Cahill 1974-5-30 311 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City Comment
  SEINET12053115  Triteleia laxa Unknown 1933-1 20 San Mateo near Emerald Lake above Redwood City Comment
  CAS-BOT-BC527392  Triteleia peduncularis Susan Sommers 1980-5-30 s.n. San Mateo Edgewood site, flat zone below hill with serpentine outcrops Comment
  POM273891B  Tropidocarpum gracile Lyman Benson 1930-5-1 2047 San Mateo Stanford University. Mt. Range: San Lorenzo. 122 Comment
  CAS-BOT-BC74058  Turritis glabra Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Above Hillside Boulevard. South San Francisco. Comment
  CAS-BOT-BC74063  Turritis glabra George Oberlander 1950-5-28 954 San Mateo San Francisco Watershed Reserve. Southern Cahill Ridge. 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
  JROH136  Umbellularia californica John H. Thomas 1959-8-22 8081 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH137  Umbellularia californica John H. Thomas 1968-2-11 14143 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
  CDA7780  Urospermum picroides T. C. Fuller 1974-5-21 19991 San Mateo San Pedro Valley County Park, 0.2 miles east of the end of Linda Mar Boulevard, Pacifica. 0 Comment
  CAS-BOT-BC403969  Urtica dioica subsp. gracilis L. R. Abrams 1927-6-13 s.n. San Mateo La Honda Comment
  CAS-BOT-BC403972  Urtica dioica subsp. gracilis John H. Thomas 1966-9-13 12393 San Mateo Montara Comment
  JROH4239  Urtica dioica subsp. holosericea John Hunter Thomas 1989-6-6 24766 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC404028  Urtica dioica subsp. holosericea Walter Knight; Irja Knight; Elizabeth McClintock 1964-9-11 752 San Mateo San Bruno Mountain. Guadalupe Creek Comment
  CAS-BOT-BC199352  Vaccinium ovatum Rose M. Higley 1907-4-27 141 San Mateo La Honda Comment
  CAS-BOT-BC199365  Vaccinium ovatum Elizabeth McClintock 1966-5-1 s.n. San Mateo Kamchatka Point Comment
  CAS-BOT-BC199374  Vaccinium ovatum Eric Walther 1919-8-1 s.n. San Mateo Woodside Comment
  OBI14436  Vaccinium ovatum Lewis S. Rose 1964-3-14 64005 San Mateo Kings Mountain 610 Comment
  POM132203  Vaccinium ovatum A. D. E. Elmer 1903-04 4561 San Mateo Kings Mountain. Comment
  RSA471173  Vaccinium ovatum L. S. Rose 1934-2-23 34036 San Mateo King's Mountain. Comment
  RSA681684  Vaccinium ovatum Annuschka Deb 1989-3-31 63 San Mateo Woodside. Comment
  UC877266  Vaccinium ovatum E. W. Rust 1907-4-27 San Mateo Kings Mountain 762 Comment
  CAS-BOT-BC199469  Vaccinium parvifolium W. R. Dudley 1895-6-6 s.n. San Mateo On trail from Iversons, Pesadero Cr. to top Butano Ridge Comment
  JROH4259  Verbena lasiostachys var. lasiostachys John H. Thomas 1971-5-30 15975 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA181222  Verbena lasiostachys var. lasiostachys John H. Thomas 1964-6-19 10428 San Mateo 0.9 miles S of Tunitas Creek near Coast Hwy, 61 Comment
  JROH4277  Verbena lasiostachys var. scabrida John H. Thomas 1974-10-26 17626 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC112848  Veronica americana Katharine Brandegee July 1908 San Mateo near San Pedro Comment
  UC1618125  Veronica americana Donald G. Nelson 1940-7-7 697 San Mateo highway from Half Moon Bay to San Mateo (along Pilarcitos Creek); Pilarcitos Creek 76 Comment
  JROH5832  Veronica americana Ann Lambrecht, Teri Barry, Nona Chiariello, and Alice Cummings 2014-5-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek delta of Searsville Lake Comment
  SEINET5578159  Vicia americana H. S. Gentry 1931-1 11 San Mateo 1.5 miles W of San Mateo, Half-Moon Bay road. Comment
  SEINET12157777  Vicia americana var. villosa M. T. Doutt 1931-1 183 San Mateo Pigeon Pt Comment
  JROH2431  Vicia benghalensis John Hunter Thomas 1989-5-23 24749 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  RSA254231  Vicia dasycarpa Robert A. Norris 1975-3-31 2290 San Mateo Near Crocker Avenue, San Bruno Mountains. 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
  JROH2439  Vicia sativa subsp. nigra John Hunter Thomas 1982-5-18 20945 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Searsville Lake near bridge Comment
  SD148148  Vicia tetrasperma G. K. Helmkamp, E. A. Helmkamp 2001-6-2 6769 San Mateo Central CA coast, Purissima Roas east of Half Moon Bay, 1.9 miles east of CA-1, disturbed roadside soil 167 Comment
  UCR51648  Vinca major R. Ascanio 1988-4-17 s.n. San Mateo E on Gazo Creek Road off Hwy 1, c. 2 mi. north of Ano Nuevo State Reserve 85 Comment
  CAS-BOT-BC264039  Viola adunca Ira L. Wiggins 1931-2-21 5091 a San Mateo Near the beach, Pescadero Beach Comment
  CAS-BOT-BC264045  Viola adunca Miss E. Cannon 1899-4-21 s.n. San Mateo E of Colma Comment
  JEPS50208  Viola adunca W. I. Follett 1934-2-18 1 San Mateo 4 mi n of Pigeon Point (from a point beside the main highway) Comment
  RSA130698  Viola adunca Roxana S. Ferris 1920-3-8 1767 San Mateo Montara Mtns vicinity of South Peak. 503 Comment
  CHSC56604  Viola glabella Steven Triano 1988-5-24 169 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
  UC1121577  Viola glabella Beryl Schreiber 1939-4-3 2610 San Mateo 1 mi s of La Honda (Pescadero-La Honda Road) 152 Comment
  UC19283  Viola glabella J. Burtt Davy 1895-4-20 1056 San Mateo Pilarcitos Creek Comment
  CAS-BOT-BC536570  Viola glabella E. A. McGregor 1908-3-28 s.n. San Mateo Kings Mt. Comment
  RSA15278  Viola glabella Carl B. Wolf 1927-4-3 244 San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  RSA101046  Viola ocellata G. Oberlander 1949-7-30 353 San Mateo On Cahill Ridge, San Francisco Watershed Reserve. Comment
  SEINET204884 Image available Viola ocellata W. D. McLellan 1954-5-17 58 San Mateo Memorial Park near Pescadero Comment
  POM128419  Viola pedunculata L. R. Abrams 1902-4-13 2328 San Mateo San Andreas Lake. Comment
  POM134805  Viola pedunculata C. F. Baker 1902-3-22 347 San Mateo South San Francisco. Comment
  RSA184886  Viola pedunculata L. S. Rose 1965-3-25 65009 San Mateo San Bruno Mountains, north end. 122 Comment
  CAS-BOT-BC182765  Vulpia bromoides Peter Rubtzoff 1978-5-18 9169 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction and northwest of Fog Forest. Comment
  CAS-BOT-BC199855  Vulpia bromoides Catherine A. Toschi 1963-2-23 63 :24 San Mateo North slope San Bruno Mountains above Crocker Avenue 152 Comment
  CAS-BOT-BC199862  Vulpia bromoides George Oberlander 1949-5-13 138 San Mateo South of San Andreas Dam Comment
  RSA254225  Vulpia bromoides Robert A. Norris 1975-3-31 2288 San Mateo Near Crocker Avenue, San Bruno Mountains. Comment
  CAS-BOT