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

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

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CHSC22697  Abronia latifolia Robert A. Schlising; Glenn Keator 1962-2-3 2043 San Mateo Sand dunes along Hwy 1, 3.9 mi N of Jct with Bonnie Doon Road. Comment
  SEINET946036  Abronia latifolia C. F. Baker 1902-1 1741 San Mateo Piller Point. Comment
Read comments
Dec 21 2013
  UCSC004916  Abronia latifolia Monica Larenas 1985-6-1 20 San Mateo Hwy 1, 0.5 mi S of Pescadero State Beach Comment
  CAS-BOT-BC177044  Acacia dealbata Ned Cahill 1974-4-30 238 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC177046  Acacia dealbata Walter Knight; Irja Knight; Elizabeth McClintock 1963-1-12 s.n. San Mateo Crocker Ave. Comment
  OBI48988  Acaena pinnatifida Michener & Bioletti, Bioletti May 1892 s.n. San Mateo Cemeteries Comment
  CAS-BOT-BC451117  Acaena pinnatifida var. californica Le Roy Abrams 1901-5-1 1622 San Mateo Colma Comment
  CAS-BOT-BC451135  Acaena pinnatifida var. californica A. D. E. Elmer 1903-4-1 4823 San Mateo San Bruno Hills Comment
  JEPS83041  Acaena pinnatifida var. californica Roy E. Buck, Randall A. Morgan, and James A. West 1983-7-15 433 San Mateo ca. 3.2 km. n.w. of Pilarcitos Dam (and 2.4 km. w.-s.w. of San Andreas Dam, along crest of Fifield Ridge, w. of gravel rd.); San Francisco Watershed Reserve 388 Comment
  CAS-BOT-BC451123  Acaena pinnatifida var. californica George Oberlander 1950-5-6 876 San Mateo Grassland about San Andreas Lake; San Francisco Watershed Reserve Comment
  CAS-BOT-BC451129  Acaena pinnatifida var. californica Elizabeth McClintock; Philip Wheeler 1967-5-14 s.n. San Mateo East side of Mountain, above Harold Ave., Brisbane; San Bruno Mountains Comment
  CAS-BOT-BC219611  Acanthomintha duttonii Lewis S. Rose 1933-5-17 33171 San Mateo Redwood City Comment
  JEPS70085  Acanthomintha duttonii L. R. Heckard and J. H. Thomas 1972-4-16 2903 San Mateo Upper Crystal Springs Reservoir, below and w of State Hwy interchange Upper Crystal Springs Reservoir Comment
  SBBG33522  Acanthomintha duttonii A. D. E. Elmer -May-1903 4538 San Mateo Crystal Springs Lake Comment
  UC55135  Acanthomintha duttonii Lewis S. Rose 1933-5-17 33171 San Mateo Redwood City Comment
  CAS-BOT-BC333292  Acer macrophyllum L. R. Abrams no date on label s.n. San Mateo La HOnda Comment
  JROH155  Acer macrophyllum John H. Thomas 1971-4-25 15786 San Mateo Jasper Ridge Biological Preserve, Stanford University 92 Comment
  RSA116909  Acer macrophyllum I. L. Wiggins 1929-3-23 3372 San Mateo Road to Mud Lake, near Stanford University Comment
  CAS-BOT-BC21551  Achillea millefolium Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain above Hillside Blvd., South San Francisco Comment
  CAS-BOT-BC21587  Achillea millefolium Fred Hemphill 1973-4-8 601 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  JROH444  Achillea millefolium John H. Thomas 1975-6-5 17943 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack 154 Comment
  JROH446  Achillea millefolium John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH447  Achillea millefolium John Hunter Thomas 1980-5-8 19954 San Mateo Jasper Ridge Biological Preserve, Stanford University 124 Comment
  CAS-BOT-BC21582  Achillea millefolium Cherie Wetzel 1969-6-20 863 San Mateo Near Canada College, Redwood City, just off Farm Hill Blvd. Comment
  CAS-BOT-BC28765  Achillea millefolium Elizabeth McClintock; Paul Reeberg 1998-5-31 s.n. San Mateo San Bruno Mountains, in a hydroseeded area east of Carter Street Comment
  JROH2064  Acmispon americanus var. americanus Carol Zabel 1989-9-4 37 San Mateo Jasper Ridge Biological Preserve, Stanford University; "Assembly area" by old docent center Comment
  JROH2074  Acmispon glaber var. glaber John Hunter Thomas 1981-5-25 20620 San Mateo Jasper Ridge Biological Preserve, Stanford University 164 Comment
  SJSU15407  Acmispon glaber var. glaber Toni Corelli 2010-5-13 610 San Mateo Pedro Point Headlands, Pacifica CA; off of South Ridge Road Trail 195 Comment
  JROH2084  Acmispon wrangelianus John H. Thomas 1955-5-6 4991 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2095  Acmispon wrangelianus John H. Thomas 1967-5-10 12848 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2103  Acmispon wrangelianus John Hunter Thomas 1980-4-10 19874 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD104489  Acmispon wrangelianus Adeline Frederick 1924-2-24 s.n. San Mateo Road from Millbrae to Lake San Andreas. Comment
  POM270478  Actaea rubra subsp. arguta Lyman Benson 1937-7-15 8450 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains; San Francisco Bay watershed. 244 Comment
  HSC23907  Adenocaulon bicolor Mary Katherine Wicksten 1971-6-22 89 San Mateo Huddart Park. Dean Trail below Werder Flat Comment
  CAS-BOT-BC140000  Adenostoma fasciculatum Fred Hemphill 1973-4-22 722 San Mateo San Carlos, area north of Malabar Rd. and Melendy Dr. 207 Comment
  SEINET191610  Adenostoma fasciculatum Lewis S. Rose 1941-6-12 41270 San Mateo Hills of Redwood City Emerald Lake. 122 Comment
  JROH3580  Adenostoma fasciculatum var. fasciculatum John Gillespie 1927-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC65516  Adiantum aleuticum J. H. Thomas 1950-4-8 1465 San Mateo Boulder Creek Canyon, about 1 1/2 mile NW of city of Boulder Creek 274 Comment
  POM281089  Adiantum jordanii Lyman Benson 1937-7-15 8454 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains; San Francisco Bay watershed. 244 Comment
  UC42038  Adiantum jordanii F. P. McLean 1873-1 San Mateo Pescadero Comment
  RSA0030869  Adiantum jordanii Deb Annuschka 1989-8-4 337 San Mateo Isenberg Ranch. 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
  SEINET1908063  Aesculus californica Carl B. Wolf 1934-1 6242 San Mateo Menlo Park, in vacant area at Cambridge Ave. & Cornell Rd., N.W. of San Francisco Creek 15 Comment
  CAS-BOT-BC29525  Agoseris apargioides Alice Eastwood 1915-6-13 4715 San Mateo Granada Comment
  CAS-BOT-BC23025  Agoseris grandiflora var. grandiflora George Oberlander 1949-7-30 333 San Mateo Grassland near San Andreas Lake Comment
  JROH484  Agoseris grandiflora var. grandiflora John Hunter Thomas 1981-5-8 20557 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC22978  Agoseris grandiflora var. grandiflora P. C. Wheeler 1966-4-24 s.n. San Mateo Buckeye Canyon Comment
  JROH488  Agoseris heterophylla Duncan M. Porter 1960-5-5 677 San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch. Quadrat H-5 Comment
  JROH491  Agoseris heterophylla John H. Thomas 1971-4-10 15758 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH494  Agoseris heterophylla John Hunter Thomas 1986-5-6 24015 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC15238  Agoseris hirsuta Josephine D. Randall 1907-7-7 43 San Mateo Kings Mountain Road Comment
  UC311237  Agoseris hirsuta A. D. E. Elmer 1903-4-1 4930 San Mateo Comment
  POM226850  Agrostis avenacea Henry E. Wreser 1932-6-4 s.n. San Mateo Black Mountain Road. Hillsborough Hills. Near Burlingane. Comment
  UCD164198  Agrostis capillaris Peter Rubtzoff 1978-7-8 9223 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Upper part of East Fork Colma Creek Canyon area. Comment
  UC143951  Agrostis densiflora Dr. E. B. Copeland 1903-8-13 3308 San Mateo Montara Point Comment
Read comments
Nov 29 2009
  CAS-BOT-BC127380  Agrostis exarata R. E. Frenkel 1964-5-22 503 San Mateo SFWD, on Portola Ridge Road, 0.3 mile north of Sawyer Ridge Road. 268 Comment
  JROH4785  Agrostis exarata John Rawlings 2004-5-20 1015 San Mateo Jasper Ridge Biological Preserve, Stanford University. Side of Trail 2 about 250 yards west of the Zoology Cabin foundation. 82 Comment
  JROH4794  Agrostis hallii John Rawlings 2011-6-21 1085 San Mateo Jasper Ridge Biological Preserve, Stanford University; adjacent to Horse Trail in opening in chaparral a few hundred feet from Escobar Road 125 Comment
  SJSU11264  Agrostis hallii S. H. Casey 1980-6-13 1156 San Mateo Los Trancos Woods Comment
  CAS-BOT-BC138866  Agrostis microphylla Le Roy Abrams 1902-5-11 2458 San Mateo Crystal Springs. Comment
  JROH5781  Agrostis microphylla John Rawlings 2016-5-3 1777 San Mateo Jasper Ridge Biological Preserve, Stanford University; vernally wet area in Serpentine prairie (Area C) 170 Comment
  JROH4801  Agrostis pallens John Rawlings 2010-6-23 0992 San Mateo Jasper Ridge Biological Preserve, Stanford University. Thirty yards up trail from lumber-reinforced section of Trail 5 on uphill side of trail. 119 Comment
  JROH4829  Aira caryophyllea John H. Thomas 1984-5-3 23333 San Mateo Jasper Ridge Biological Preserve, Stanford University 159 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
  JROH5613  Aira caryophyllea John Rawlings 2014-4-11 1216 San Mateo Jasper Ridge Biological Preserve, Stanford University; in road G immediately north of its intersection with Rd. J. 144 Comment
  CAS-BOT-BC138243  Aira caryophyllea var. caryophyllea Fred Hemphill 1973-4-15 674 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC138245  Aira caryophyllea var. caryophyllea W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of Sneath Ranch Hills. Comment
  JROH4566  Allium John H. Thomas 1976-5-26 18153 San Mateo Jasper Ridge Biological Preserve, Stanford University 148 Comment
  JROH4572  Allium John Hunter Thomas 1985-5-22 23682 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Cr. Comment
  JROH4542  Allium amplectens John Hunter Thomas 1980-5-6 19928 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4543  Allium amplectens John H. Thomas 1985-5-7 23645 San Mateo Jasper Ridge Biological Preserve, Stanford University. Serpentine grassland beyond blue oak woodland Comment
  JROH4547  Allium amplectens Toni Corelli 2005-5-18 288 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 1 m west of Road F 174 Comment
  JROH5959  Allium amplectens John Rawlings 2017-6-6 2100 San Mateo Jasper Ridge Biological Preserve, Stanford University; rocky serpentine near ridge crest at NW terminus of Serpentine prairie (Area C). 177 Comment
  CAS-BOT-BC467297  Allium dichlamydeum Hester R. Davis 1920-6-1 s.n. San Mateo Serpentine Creek of Redwood City Comment
  JROH4550  Allium falcifolium John H. Thomas 1957-4-16 6662 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent slopes Comment
  CAS-BOT-BC469034  Allium falcifolium Robert F. Hoover 1941-4-23 4907 San Mateo Redwood City Hills Comment
  CDA2746  Allium neapolitanum J. E. McClellan, B. McClellan Apr 1972 San Mateo Bernal Avenue, Burlingame. 0 Comment
  JEPS33718  Allium peninsulare var. franciscanum D. E. Breedlove 1963-5-13 4942 San Mateo w San Mateo (on the se corner of the junction of Crystal Springs Rd. and Polhemus Rd.) Comment
  JROH4562  Allium triquetrum John Rawlings, Toni Corelli 2012-5-15 1122 San Mateo Jasper Ridge Biological Preserve, Stanford University. West bank of Bear Creek at its crossing of Road H near boundary fence. 82 Comment
  JROH1324  Alnus rhombifolia John H. Thomas 1964-11-29 10539 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below dam Comment
  CAS-BOT-BC137921  Alopecurus saccatus W. R. Dudley 1910-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. New Grade road above Fritz Patricks. Comment
  JROH173  Amaranthus John H. Thomas 1976-10-16 18420 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along or near San Francisquito Creek from the low flow crossing to the vicinity of the old fire place ruins downstream. Comment
  SJSU7593  Amaranthus deflexus C. A. Staicer 1976-9-26 San Mateo 91 Atherton Lane, Atherton Comment
  JROH4576  Amaryllis belladonna Toni Corelli 2011-10-4 374 San Mateo Jasper Ridge Biological Preserve, Stanford University. Disturbed area below Douglas' iris site 89 Comment
  SD39990  Ambrosia chamissonis Edith A. Purer 1932-7-18 4011 San Mateo Half Moon Bay on sand dunes Comment
  CAS-BOT-BC44923  Ambrosia chamissonis Volney Rattan 1879-1-1 s.n. San Mateo Mouth Redwood Creek Comment
  CAS-BOT-BC44927  Ambrosia chamissonis Saichi Kawahara 1968-6-15 443 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1 3 Comment
  SEINET11855119  Ambrosia chamissonis E. H. Graham 1931-1 6941 San Mateo Ano Nuevo Pt. S of San Francisco Comment
  CAS-BOT-BC55528  Ambrosia psilostachya L. R. Abrams 1902-9-21 2992 San Mateo Crystal Lake Comment
  CAS-BOT-BC136830  Amelanchier utahensis Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Horseshoe Ridge Comment
  JROH5617  Amelanchier utahensis Ann Lambrecht 2014-4-29 49 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 14, about midway between dam and road C. 98 Comment
  CAS-BOT-BC136827  Amelanchier utahensis J. Ed. McClellan 1941-4-20 s.n. San Mateo Hills west of San Mateo Comment
  JROH2942  Ammannia robusta John Hunter Thomas 1982-11-6 21214 San Mateo Jasper Ridge Biological Preserve, Stanford University; old bathing beach, edge of Searsville Lake Comment
  JROH1340  Amsinckia intermedia John Hunter Thomas 1982-4-4 20821 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH1353  Amsinckia menziesii John Hunter Thomas 1987-5-5 24241 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1084383  Amsinckia tessellata var. gloriosa G. Thomas Robbins 1937-4-11 77 San Mateo above Colma (along Skyline Blvd, s of San Francisco) Comment
  UC1125509  Anaphalis margaritacea G. E. Sindel 1935-7-30 315 San Mateo 3/4 mi n of Pomponio Creek; Santa Cruz Quad. 259 Comment
  CAS-BOT-BC391924  Anemone grayi H. L. Mason 1927-4-24 3698 San Mateo La Honda Comment
  RSA249476  Angelica hendersonii John F. Emmel 1972-6-11 406 San Mateo Ravine 0.5 air mile west of 1314 summit, southwest slope of San Bruno Mountains 152 Comment
  UC306529  Angelica tomentosa A. D. E. Elmer July, 1903 4998 San Mateo southern end of Crystal Springs Lake Crystal Springs Lake Comment
  POM132762  Angelica tomentosa var. tomentosa C. F. Baker 1903-6-30 3354 San Mateo Crystal Springs Comment
  UC89529  Anisocarpus madioides C. F. Baker 1902-5-10 800 San Mateo Kings Mountain Comment
  CAS-BOT-BC273175  Anisocarpus madioides W. R. Dudley 1900-5-19 s.n. San Mateo Santa Cruz Mountain Peninsula. By road near La Honda Summit 213 Comment
  CAS-BOT-BC273179  Anisocarpus madioides W. R. Dudley 1895-9-15 s.n. San Mateo Santa Cruz Mountain Peninsula. El Corte Madera Creek near Lumber Camp Comment
  RSA101037  Anthemis cotula G. Oberlander 1954-5-21 154 San Mateo Upper San Mateo Creek, San Francisco Watershed Reserve. Comment
  CAS-BOT-BC280648  Anthoxanthum occidentale C. F. B. 1902-1-15 247 San Mateo West side King's Mountain Comment
  RSA492536  Anthriscus caucalis Lyman Benson 1935-5-5 6521 San Mateo Lake Searsville 152 Comment
  CAS-BOT-BC454483  Aphanes occidentalis John H. Thomas 1955-4-6 4847 San Mateo East facing slope of San Bruno Mountain just north of South San Francisco. 91 Comment
  JROH3602  Aphanes occidentalis John H. Thomas 1968-3-31 14260 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3606  Aphanes occidentalis John Hunter Thomas 1981-4-5 20269 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  CAS-BOT-BC454489  Aphanes occidentalis J. I. McMurphy 1906-5-8 s.n. San Mateo Crystal Springs Lakes, Santa Cruz Mountain Pennisula Comment
  RSA112399  Aphanes occidentalis Hester R. Davis 1920-4-12 36 San Mateo San Mateo County: Near Searville Lake Comment
  SEINET3244631  Apiastrum angustifolium A. D. E. Elmer 1903-1 4461 San Mateo Crystal Spring Lake, Southern end Comment
  CAS-BOT-BC451568  Aponogeton distachyos M. P. Johnson 1967-2-18 10014 San Mateo On east side of State Highway 5, 4.6 miles south of southern boundary of San Francisco. Comment
  CAS-BOT-BC392063  Aquilegia eximia A. D. E. Elmer 1903-6-1 4271 San Mateo Crystal Springs Lake Comment
  UC311129  Aquilegia eximia A. D. E. Elmer June, 1903 4271 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC405851  Aquilegia formosa Alice Eastwood 1912-6-10 340 San Mateo Crystal springs Comment
  CAS-BOT-BC405895  Aquilegia formosa Walter Knight; Irja Knight 1965-4-4 1009 San Mateo Bitter-cherry Ravine on north facing slope in chaparral. Comment
  CAS-BOT-BC405899  Aquilegia formosa Phillip Wheeler 1965-3-28 s.n. San Mateo Columbine Gulch Comment
  SD1680  Aquilegia formosa Ulysses S. Grant IV 1925-6-1 San Mateo near La Honda Comment
  SEINET5721773 Image available Aquilegia formosa Johnny O. Johnson 1974-1 29 San Mateo Bear Gulch Road, 2 miles north of its intersection with State Hwy 84. Comment
  CAS-BOT-BC17328  Arabis blepharophylla A. D. E. Elmer 1903-4-1 4936 San Mateo Santa Cruz Peninsula. San Bruno Hills. Comment
  POM143334  Arabis blepharophylla A. D. E. Elmer 1903-04 4936 San Mateo San Bruno Hills Comment
  UC967208  Arabis blepharophylla L. Constance, R. Bacigalupi, and C. R. Bell 1951-3-25 3369 San Mateo se side Colma Canyon 60 Comment
  CAS-BOT-BC128626  Arbutus menziesii Elmer I. Applegate 1895-3-9 315 San Mateo Woodside Comment
  CAS-BOT-BC128674  Arbutus menziesii Ned Cahill 1974-4-30 233 San Mateo Chaparral near the intersection of Canada and Edgewood Roads, about 3 mi. westward from Redwood City. Comment
  UC83010  Arctostaphylos C. F. Baker 1902-5-10 817 San Mateo King's Mountain Comment
  CAS-BOT-BC24126  Arctostaphylos andersonii A. D. E. Elmer 1903-3-1 4537 San Mateo King's Mountain Comment
  RSA289982  Arctostaphylos andersonii Edward Lee 1936-1-26 1735 San Mateo King's Mountain Road, 4.7 miles from Woodside. East side of Cahill Ridge. Comment
  SBBG25382  Arctostaphylos andersonii R. Gankin 1959-3-22 324 San Mateo King's Mtn Rd, 1.2 mi E of jct with St Hwy 5, ca. 5 mi W of Woodside Comment
  UCD50280  Arctostaphylos andersonii Roman Gankin 1959-3-22 324 San Mateo Kings Mountain Road, 1.2 miles east of junction with State Highway 5, ca. 5 miles west of Woodside. Comment
  SEINET12001814  Arctostaphylos andersonii W. R. Dudley 1906-1 6 San Mateo near Crystal Springs Lake, Santa Cruz Mts., Santa Cruz Peninsula Comment
  SEINET11987334  Arctostaphylos andersonii var. imbricata J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4215 San Mateo from Strybing Arboretum, Golden Gate Park, San Francisco, from San Bruno Mountain Comment
  SEINET11989088  Arctostaphylos andersonii var. imbricata W. Knight, Knight, I.; McClintock, E. 1981-1 4493 San Mateo Kamchatka Point, San Bruno Mt 320 Comment
  CAS-BOT-BC23544  Arctostaphylos crustacea J. I. McMurphy 1906-3-9 7 San Mateo King's Mt., Santa Cruz Mts. 487 Comment
  CAS-BOT-BC27247  Arctostaphylos crustacea Mr. A. Seale; Mrs. A. Seale 1922-4-2 s.n. San Mateo King's Mt. Comment
  RSA26358  Arctostaphylos crustacea E. K. Balls, Percy C. Everett 1953-10-16 18682 San Mateo Hwy 5, 30.8 mi SE of San Francisco-San Mateo Co. line. 762 Comment
  SEINET11989198  Arctostaphylos crustacea E. McClintock, Knight, W.; Knight, I. 1982-1 4645 San Mateo San Pedro County Park, near Pacifica Comment
  JROH1940  Arctostaphylos crustacea subsp. crustacea John Hunter Thomas 1979-5-10 19547 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC876560  Arctostaphylos crustacea subsp. crustacea Myrtle Paulson 1914-10-24 San Mateo Jasper Ridge Santa, Cruz Mountain Peninsula. Comment
  SEINET11987278  Arctostaphylos glandulosa W. Knight, Knight, I.; McClintock, E.; Sigg, J. 1981-1 4038 San Mateo Strybing Arboretum in San Francisco, originally from Buckeye Canyon, San Bruno Mountain Comment
  CAS-BOT-BC24727  Arctostaphylos glandulosa subsp. glandulosa Elizabeth McClintock; Paul Reedberg 1988-4-5 s.n. San Mateo Canyon e. of Buckeye Canyon, on a hogback ridge. Comment
  JEPS98830  Arctostaphylos imbricata James Roof May 1961 San Mateo San Bruno Mountain 400 Comment
  UC942860  Arctostaphylos imbricata Lewis S. Rose 1951-3-13 51001 San Mateo San Bruno Hills San Bruno Hills (type locality) 304 Comment
  SBBG21959  Arctostaphylos montaraensis R. F. Thorne with P. C. Everett 1963-6-9 32224 San Mateo top of San Bruno Mtn, near the TV Tower 335 Comment
  SEINET11987192  Arctostaphylos montaraensis W. Knight, Knight, I. 1981-1 3920 San Mateo Tilden Botanic Garden, Berkeley, orig. from Peak Mountain Comment
  CAS-BOT-BC44701  Arctostaphylos regismontana A. D. E. Elmer 1903-3-1 4537 San Mateo Kings Mt. Comment
  CAS-BOT-BC44734  Arctostaphylos regismontana Roman Gankin 1959-3-22 323 San Mateo Kings Mountain Road, 1.2 miles east of junction with State Highway 5, ca. 5 miles west of Woodside. Comment
  CAS-BOT-BC44739  Arctostaphylos regismontana L. R. Abrams 1902-1-12 2254 San Mateo Kings Mountain Comment
  JEPS98838  Arctostaphylos regismontana James B. Roof 1964-9-14 San Mateo middle summit Montara Mt. (Peak Mountain) Comment
  RSA1939  Arctostaphylos regismontana C. B. Wolf 1930-11-6 1067 San Mateo 2 mi N of Summit of Kings Mountain, Skyline Blvd. 640 Comment
  RSA40324  Arctostaphylos regismontana L. S. Rose 1947-3-11 47028 San Mateo Kings Mountain, Type Locality. 609 Comment
  RSA636740  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24633 San Mateo NW side of Montara Mtn. 150 Comment
  RSA636744  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24631 San Mateo NW side of Montara Mtn. 150 Comment
  RSA636748  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24634 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
  UC1120836  Arctostaphylos regismontana A. E. Wieslander and B. O. Schreiber 1940-3-5 5 San Mateo road from Woodside to King's Mt.; Santa Cruz Quadrangle 365 Comment
  UC1120837  Arctostaphylos regismontana A. E. Wieslander and B. O. Schreiber 1940-3-5 8 San Mateo road from Woodside to King's Mt.; Santa Cruz Quadrangle 487 Comment
  UC1424961  Arctostaphylos regismontana Gary D. Wallace 1974-12-28 1375 San Mateo along Skyline Blvd. s Upper Crystal Springs Res. (2.8 mi n of jct. of King Mtn. Rd. opposite Farwell's Rhododendron Nursery); Northern Santa Cruz Mtns. 640 Comment
  CAS-BOT-BC44710  Arctostaphylos regismontana Walter Knight; Irja Knight; Jacob Sigg; Elizabeth McClintock 1981-2-25 4170 San Mateo From Strybing Arboretum, Golden Gate Park, San Francisco, #63-1 vea Univ. of Calif. botanic garden, Comment
  CAS-BOT-BC44745  Arctostaphylos regismontana W. R. Dudley 1900-5-16 s.n. San Mateo On stage road from King's Mt. to Spanishstown Comment
  CAS-BOT-BC44667  Arctostaphylos sensitiva T. J. B. 1913-3-14 s.n. San Mateo South side of Chrystal Springs Lake on Road this side of Rand's store Comment
  JEPS90463  Arctostaphylos tomentosa subsp. crinita Dean W. Taylor 1994-7-5 14744 San Mateo ca. 2 mi se Pescadero (far western end of ridge, on private road that leaves Cloverdale Rd. 0.3 mi s of Pescadero High School); Santa Cruz Mountains, Butano Ridge 228 Comment
  JEPS48594  Arctostaphylos tomentosa subsp. crustacea James G. Daly 1934-1 543 San Mateo San Gregorio watershed Santa Cruz Mts. (sw San Mateo Co.) Comment
  POM131601  Arctostaphylos tomentosa subsp. crustacea C. F. Baker 1902-3-18 328 San Mateo King's Mountain. Comment
  RSA44374  Arctostaphylos tomentosa subsp. crustacea L. S. Rose 1949-3-18 49006 San Mateo Hills west of Belmont. 91 Comment
  RSA636840  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24652 San Mateo NW side of Montara Mtn. 150 Comment
  RSA636844  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24651 San Mateo NW side of Montara Mtn. 150 Comment
  RSA636848  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24648 San Mateo NW side of Montara Mtn. 150 Comment
  RSA636851  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley 1979-6-18 7313 San Mateo Jasper Ridge. Comment
Read comments
Sep 19 2011
  UC1120127  Arctostaphylos tomentosa subsp. crustacea C. M. Belshaw 1935-1-25 1471 San Mateo 2 1/2 mi nw Sierra Moreno Peak; Santa Cruz Quadrangle 609 Comment
  UC1120137  Arctostaphylos tomentosa subsp. crustacea C. M. Belshaw 1935-1-25 1465 San Mateo 4.5 mi w Woodside; Santa Cruz Quadrangle Comment
  UC565408  Arctostaphylos tomentosa subsp. crustacea Chas. M. Belshaw 1936-1-25 1465 San Mateo Kings Mountain rd 4.5 mi w Woodside; South Coast Range Comment
  RSA17966  Arctostaphylos tomentosa subsp. crustacea C. B. Wolf 1927-8-13 713 San Mateo Near summit La Honda Grade, Santa Cruz Mts. Comment
  SJSU6081  Arctostaphylos uva-ursi S. H. Casey 1969-5-18 256 San Mateo near summit of San Bruno Mt Comment
  UCD52049  Arctostaphylos uva-ursi Roman Gankin 1959-3-25 328 San Mateo 1/4 mile east of KRON TV station transmitter. Associated with Baccharis hybrids, Lupinus and Ceanothus. San Mateo County, California. Comment
  UCD52151  Arctostaphylos uva-ursi Walter and Irja Knight; Robert and Janet Blomquist 1981-7-3 4426 San Mateo Kamchatka Point, San Bruno Mt., San Mateo County, California. Comment
  RSA0077992  Arctostaphylos uva-ursi B. A. Stein 1981-2-22 422 San Mateo San Bruno Mountain, just E of sumit. 396 Comment
  SEINET11989204  Arctostaphylos uva-ursi W. Knight, Knight, I.; McClintock, E. 1982-1 4639 San Mateo NE of parking loc, San Bruno Mountain 335 Comment
  SEINET11987484  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4201 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from San Bruno Mt Comment
  SEINET11989256  Arctostaphylos uva-ursi var. coactilis Unknown 1959-1 328 San Mateo near ridge of San Bruno Mountain, South San Francisco, 0.25 mi E of KRON TV transmitter Comment
  CAS-BOT-BC27300  Arctostaphylos uva-ursi var. suborbiculata W. Knight; Irja Knight; Elizabeth McClintock 1981-7-3 4492 San Mateo Kamchatka Point, San Bruno Mountain Comment
  SEINET11987195  Arctostaphylos uva-ursi var. suborbiculata W. Knight, Knight, I. 1981-1 3917 San Mateo Tilden Botanic Garden, Berkeley, orig. from Kamchatka Point on San Bruno Mt Comment
  CAS-BOT-BC401713  Argemone munita subsp. munita J. E. McClellan 1968-8-2 s.n. San Mateo Westerly side of highway 1 about 1/4 mile north from Cascade Ranch entrance, north of Ano Nuevo Pt., near highway post No. 5 M.3039 Comment
  CAS-BOT-BC47701  Armeria maritima subsp. californica Robert Robertson 1954-5-1 118 San Mateo at Pescadero Beach 6 Comment
  CAS-BOT-BC47706  Armeria maritima subsp. californica J. H. Thomas 1963-8-4 10237 San Mateo Just north of Pigeon Point Light House Comment
  UC1123303  Armeria maritima subsp. californica W. W. Akey 1935-5-28 24 San Mateo 1 1/2 mi n Bolsa POint; Santa Cruz Quadrangle Comment
  UC1537507  Armeria maritima subsp. californica Gordon H. True Jr. 1936-6-7 485 San Mateo 4 mi s Pescadero (top of ocean bluff) 15 Comment
  UC877854  Armeria maritima subsp. californica Alice Eastwood 1915-6-13 4712 San Mateo Granada Comment
  CAS-BOT-BC82516  Arnica discoidea W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs Reservoir Comment
  CDA29889  Arrhenatherum elatius J. Eide 2009-7-2 PDR# 1481186 San Mateo Santa Cruz Mountains; San Bruno Mountain, in the vicinity of San Bruno. 0 Comment
  CAS-BOT-BC84886  Artemisia californica Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain, Power Line Ridge Comment
  JROH515  Artemisia californica L. R. Abrams 1902-12-23 3098 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC93930  Artemisia douglasiana Phillip C. Wheeler 1965-8-14 s.n. San Mateo San Bruno Mountain, Brisbane Lagoon Comment
  CAS-BOT-BC93939  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
  SBBG33991  Artemisia douglasiana L. S. Rose 1969-8-8 69090 San Mateo Skyline Blvd and Half Moon Bay Rd, Cahill Ridge 243 Comment
  POM313191  Arundo donax S. Galen Smith, Malcom A. Nobs 1949-8-25 1574 San Mateo Marsh south of Rockaway Beach. Comment
  SACT000356  Arundo donax Malcolm Nobs, S. Smith 1949-8-25 San Mateo on bank in marsh, 6-12 feet tall, with typha, scirpus, potameton, polygonum, and lactuca. Brackish marsh Comment
  JROH431  Asclepias fascicularis John H. Thomas 1974-6-27 17444 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH434  Asclepias fascicularis John Hunter Thomas 1977-6-7 18729 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH436  Asclepias fascicularis John Hunter Thomas 1982-9-23 21161 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH438  Asclepias fascicularis John Hunter Thomas 1992-6-8 25367 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5923013 Image available Asclepias fascicularis L. S. Rose 1965-1 65092 San Mateo Emerald Lake, W of Redwood City. Comment
  UCR254761  Aster chilensis Peter Rubtzoff 1974-12-17 7944 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  RSA128844  Aster chilensis W. R. Dudley 1895-9-21 s.n. San Mateo Meulo Park Comment
  RSA417641  Aster chilensis D. D. Keck 1931-10-5 1282 San Mateo 1 mile north of Salada Beach 91 Comment
  CAS-BOT-BC478066  Asteraceae Peter H. Raven 1957-9-1 11302 San Mateo Along Skyline Blvd. at Woodside Road Comment
  CAS-BOT-BC186758  Astragalus gambelianus Lois E. James 1946-4-16 1740 San Mateo Back of Redwood City, High Road off Woodside Road Comment
  UC1057449  Astragalus gambelianus G. Thomas Robbins 1937-4-11 98 San Mateo near Spring Valley Lakes (along road to Woodside); near Spring Valley Lakes, along road to Woodside Comment
  CAS-BOT-BC186760  Astragalus gambelianus L. R. A. 1902-5-4 2402 San Mateo Woodside Comment
  JEPS54784  Astragalus nuttallii Katharine Brandegee c. 1912 San Mateo Tobin Comment
  CAS-BOT-BC177969  Astragalus nuttallii var. virgatus W. R. Dudley 1896-4-17 s.n. San Mateo Pasture near Pebble Beach, Pescadero - Santa Cruz Peninsula Comment
  SEINET5326017  Astragalus nuttallii var. virgatus A. A. Heller 1906-6-8 8385 San Mateo Near Ocean View, San Francisco Comment
  SFV1786  Astragalus nuttallii var. virgatus W. R. Russell 1966-8-17 s. n. San Mateo On side of hill at north end of Princeton Beach, about 2 miles south of Moss Beach. Comment
  UCD164088  Athyrium filix-femina var. cyclosorum Peter Rubtzoff 1977-11-24 9144 San Mateo San Bruno Mountains.'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC17587  Athysanus pusillus Peter H. Raven 1951-2-18 2734 San Mateo Summit Ridge San Bruno Mountains. 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
  UC499711  Atriplex hortensis L. R. Abrams 1932-8-22 13410 San Mateo Bayshore Highway near Redwood City; near Redwood City Comment
  CHSC57076  Atriplex leucophylla Steven Triano 1988-5-24 201 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  RSA478328  Atriplex leucophylla E. A. Purer 1933-7-27 5349 San Mateo Pigeon Point. Comment
  UCD97642  Atriplex prostrata H. C. Stutz 1995-10-3 9833 San Mateo Half Moon Bay. Comment
  RSA26768  Atriplex subspicata I. L. Wiggins 1929-8-24 3873 San Mateo Moss Beach. Comment
  CAS-BOT-BC146124  Avena barbata Catherine A. Toschi 1963-2-23 63 :31 San Mateo North slope San Bruno Mountains above Crocker Avenue. 152 Comment
  HSC9008  Avena fatua C. B. Wolf 1927-6-4 San Mateo South of San Gregorio Comment
  CAS-BOT-BC389748  Avena fatua M. Danielson 1966-4-23 s.n. San Mateo Hillside east of Canada Road Comment
  UCD56091  Avena strigosa T. C. Fuller 1971-6-10 19879 San Mateo 1.6 km east of San Gregorio. Comment
  JROH6  Azolla filiculoides Lawrence J. Winship 1974-11-16 16 San Mateo Jasper Ridge Biological Preserve, Stanford University. On and below Searsville Dam Comment
  POM89832  Azolla filiculoides F. T. Bioletti 1893-6-15 s.n. San Mateo Baden Comment
  CAS-BOT-BC98698  Baccharis douglasii W. R. Dudley 1894-9-22 s.n. San Mateo Preston's Ravine, Searsville - Santa Cruz Mountain Peninsula Comment
  RSA18494  Baccharis douglasii C. B. Wolf 1927-7-14 626 San Mateo 1 mile west of summit of La Honda Grade Comment
  SEINET3386136 Image available Baccharis douglasii David D. Keck 1931-9-27 1271 San Mateo Dumbarton Bridge. Comment
  CAS-BOT-BC99528  Baccharis pilularis P. C. Everett 1934-8-19 6068 San Mateo Pescadero 198 Comment
  RSA38968  Baccharis pilularis Edith A. Purer 1933-8-4 5409 San Mateo Clay hillside near Baden Station Comment
  CAS-BOT-BC16642  Barbarea orthoceras W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Peninsula. Near head of San Andreas Lake. Comment
  JROH1440  Barbarea orthoceras John H. Thomas 1968-3-17 14183 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1452  Barbarea orthoceras John Hunter Thomas 1988-4-6 24373 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UCD165020  Barbarea orthoceras Peter Rubtzoff 1975-5-21 7961 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JEPS35291  Bellardia trixago J. H. Thomas 1962-5-8 9852 San Mateo Pigeon Point Comment
  JROH3915  Bellardia trixago John H. Thomas 1974-5-19 17382 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  JROH3930  Bellardia trixago John Hunter Thomas 1989-5-9 24698 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-BC75866  Berberis pinnata W. R. Dudley 1896-11-14 s.n. San Mateo Santa Cruz Peninsula. Hill west of Crystal Springs Lake. Comment
  CAS-BOT-BC75874  Berberis pinnata A. D. E. Elmer 1903-4-1 4820 San Mateo San Bruno Hills. Comment
  CAS-BOT-BC75879  Berberis pinnata G. Edelbrock 1975-3-21 021 San Mateo On ridge at end of Crocker Street, San Bruno Mountain. 152 Comment
  CAS-BOT-BC75870  Berberis pinnata W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Peninsula. By La Honda Road below BD Week's. Comment
  UC42859  Blechnum spicant F. P. McLean May 1873 San Mateo Pescadero Comment
  CAS-BOT-BC389681  Bloomeria crocea Mary Wicksten 1969-6-25 s.n. San Mateo Huddart Park Comment
  CAS-BOT-BC31089  Bolboschoenus maritimus Ira L. Wiggins 1973-7-29 22056 San Mateo Sandy bed of of San Francisquito Creek, ca 80 m upstream from Pope St Bridge Comment
  SEINET10927832  Bolboschoenus maritimus Lewis S. Rose 1935-8-13 Rose 35565 San Mateo Salada. Salt marsh. 3 Comment
  CAS-BOT-BC95344  Bowlesia incana Walter Knight; Irja Knight 1965-3-28 s.n. San Mateo Devil's Arroyo, San Bruno Mountain Comment
  UC140513  Bowlesia incana C. F. Baker 1902-4-12 510 San Mateo Pacific Coast, La Honda La Honda; Pacific Coast, La Honda Comment
  UC463130  Boykinia occidentalis W. R. Dudley 1895-6-6 San Mateo banks Pescadero Creek (above Iversons); Santa Cruz Peninsula, banks Pescadero Creek Comment
  JROH4855  Brachypodium distachyon John Hunter Thomas 1988-6-2 24509 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15939  Brachypodium distachyon John Rawlings, Ken Hickman 2016-5-26 1815 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
  UCD57119  Brachypodium distachyon Peter H. Raven 1957-6-30 11015 San Mateo 1.8 miles east of Pescadero on road to La Honda. Comment
  CDA36477  Brachypodium sylvaticum Ellen Gartside 2011-8-12 s.n. San Mateo Woodside; above Grandview Drive at entrance of private driveway. Comment
  CDA36482  Brachypodium sylvaticum Ellen Gartside 2011-7-18 s.n. San Mateo Woodside; Martinez Rd., north edge of corral. Comment
  CDA36483  Brachypodium sylvaticum Ellen Gartside 2011-7-18 s.n. San Mateo Woodside; on deer trail north east from trail below Old La Honda Road. Comment
  CHSC91953  Brachypodium sylvaticum K. Melo 2003-12-1 1387519 San Mateo San Francisco Peninsula. Hwy 84 at Grandview Terrace and Schilling lake. Martin Creek drainage. Comment
  JROH5719  Brachypodium sylvaticum John Rawlings 2015-10-4 1651 San Mateo Jasper Ridge Biological Preserve, Stanford University; south of Middle Lake, ranging from Preserve boundary fence south of Caretaker's Residence east into riparian woodland. 101 Comment
  UCR160099  Brachypodium sylvaticum K. Melo 2003-11-10 1387519 San Mateo 4506 Oak Knoll Dr, Emerald Hills Comment
  JROH1457  Brassica nigra D. E. Breedlove 1971-5-31 19364 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH1460  Brassica rapa John H. Thomas 1967-4-20 12704 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1470  Brassica rapa John Hunter Thomas 1989-5-23 24747 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old bridge over two parts of lake Comment
  UC2049864  Brassica rapa H. W. Johansen 1955-4-23 82 a San Mateo Crystal Springs road, 2 miles W of San Mateo Comment
  JROH4868  Briza maxima John Hunter Thomas 1986-5-17 24051 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dam to Rattlesnake Rock Comment
  UCD57161  Briza maxima S. S. Tillett; I. Sternback 1956-6-25 551 San Mateo Skyline Drive. 487 Comment
  CAS-BOT-BC145342  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos. Comment
  POM264294  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo near San Carlo in open field. Comment
  UC144492  Briza minor Copeland 1903-5-24 3257 San Mateo above Crystal Springs Lake Comment
  UCR121574  Briza minor George K. Helmkamp, E. A. Helmkamp 1999-6-28 5006 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  SEINET10868322  Briza minor Alan A. Beetle 1941-4-20 Beetle 1738 San Mateo Near San Carlos, rich heavy loam, in open field. Comment
  SEINET182863  Brodiaea capitata John Campbell 1925-3-27 San Mateo Burlingame Comment
  CAS-BOT-BC484342  Brodiaea elegans subsp. elegans Philip C. Wheeler 1965-6-21 s.n. San Mateo Sierra Point, San Bruno Mountain Comment
  CAS-BOT-BC484350  Brodiaea elegans subsp. elegans W. R. Dudley 1893-5-27 s.n. San Mateo By road to Searsville Comment
  SEINET3559685 Image available Brodiaea laxa Lewis S. Rose 1933-5-17 33169 San Mateo Redwood City. Comment
  JROH4586  Brodiaea terrestris subsp. terrestris Elmer I. Applegate 1895-5-11 700 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU9943  Brodiaea terrestris subsp. terrestris J. R. Verbarg 1955-5-14 44 San Mateo Crystal Springs Hills Comment
  UC72476  Brodiaea terrestris subsp. terrestris Milo S. Baker 1904-5-15 San Mateo near Burlingame Comment
  CAS-BOT-BC483168  Brodiaea terrestris subsp. terrestris John H. Thomas 1971-5-2 15808 San Mateo Near intersection of Canada and Edgewater Roads, about 4 miles SW of center of Redwood City 304 Comment
  CAS-BOT-BC483181  Brodiaea terrestris subsp. terrestris Le Roy Abrams 1902-5-4 2427 San Mateo Near Woodside Comment
  CAS-BOT-BC148976  Bromus carinatus var. carinatus Lewis S. Rose 1956-5-7 56069 San Mateo Skyline Boulevard west of San Mateo. 182 Comment
  CAS-BOT-BC148993  Bromus carinatus var. carinatus John H. Thomas 1974-5-9 17331 San Mateo San Pedro Valley. Northern part of county, inland from Pacifica. 152 Comment
  JROH4901  Bromus carinatus var. carinatus John Rawlings 2013-4-23 1143 San Mateo Jasper Ridge Biological Preserve, Stanford University. Shaded, northwest-facing slope of small drainage about 100 meters upstream from Trail 11 at the upper footbridge. 133 Comment
  CAS-BOT-BC148767  Bromus carinatus var. marginatus W. R. Dudley 1901-5-11 s.n. San Mateo Santa Cruz Mountain Peninsula. Between Colma and Lake Merced. Comment
  RSA120971  Bromus catharticus J. T. Howell 1956-5-23 31446 San Mateo Roadside, El Camino Real at Atherton Ave., Menlo Park. Comment
  CAS-BOT-BC155840  Bromus catharticus var. elatus Dale Beltz 1956-5-23 s.n. San Mateo Belmont. Comment
  CDA34508  Bromus diandrus D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .177 San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. Comment
  POM236902  Bromus diandrus Lyman Benson 1930-5-1 2074 San Mateo San Lorenzo Mt. Range, Stanford University, Portola Road 152 Comment
  SEINET3922418  Bromus diandrus Robert A. Norris 1984-3-21 4657 San Mateo Brushy W-facing slope of Blue Blossom Hill in the San Bruno Mts.; 0 Comment
  SEINET11675595  Bromus diandrus Unknown 1932-1 9128 San Mateo Stanford Farm Comment
  JROH4929  Bromus hordeaceus John Rawlings 2010-4-28 1091 San Mateo Jasper Ridge Biological Preserve, Stanford University; on slope south of the visitor parking lot 119 Comment
  CAS-BOT-BC162407  Bromus laevipes A. A. Heller 1907-5-23 8566 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  JROH4933  Bromus laevipes John H. Thomas 1967-5-12 12865 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4936  Bromus laevipes John Hunter Thomas 1989-6-13 24769 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4948  Bromus madritensis subsp. rubens John Hunter Thomas 1988-6-2 24503 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near old bridge Comment
  JROH4955  Bromus madritensis subsp. rubens John Rawlings 2013-4-9 1146 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along brick path leading from visitor parking to Sun Field Station. 120 Comment
  JROH5650  Bromus vulgaris John Rawlings 2014-5-28 1245 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry bed of San Francisquito Creek at at the Dennis Martin site. 71 Comment
  UC1301004  Cakile maritima Helen K. Sharsmith 1963-3-23 5251 San Mateo near Half Moon Bay; San Francisco Bay Region Comment
  RSA26885  Cakile maritima R. C. Rollins 1941-7-19 2962 San Mateo Half Moon Bay. Comment
  CAS-BOT-BC27843  Calais kelloggii Albert Kellogg s.n. San Mateo San Bruno Mts. Comment
  RSA17938  Calamagrostis nutkaensis C. B. Wolf, Le Roy Abrams 1927-6-4 s.n. San Mateo Pescadero. Comment
  CAS-BOT-BC438534  Calandrinia ciliata Catherine A. Toschi 1963-2-23 63 :36 San Mateo North slope San Bruno Mountains above Crocker Avenue 152 Comment
  CAS-BOT-BC438536  Calandrinia ciliata Elizabeth McClintock 1967-4-16 s.n. San Mateo San Bruno Mountain. Buckeye Canyon. Comment
  CAS-BOT-BC273257  Calendula officinalis Peter H. Raven 1950-4-30 1969 San Mateo Montara 24 Comment
  JROH1641  Callitriche marginata John H. Thomas 1974-4-4 17079 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4599  Calochortus albus John H. Thomas 1971-5-30 15957 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along trail below dam Comment
  JROH4600  Calochortus albus John H. Thomas 1972-5-5 16083 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC72477  Calochortus albus Milo S. Baker May 1904 San Mateo near Burlingame Comment
  UCR121570  Calochortus albus George K. Helmkamp, E. A. Helmkamp 1999-6-28 5000 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-BC492222  Calochortus albus Dr. A. Kellogg; W. G. W. Harford 1861-6-10 991 San Mateo San - handwriting illegible Comment
  RSA292630  Calochortus albus Lyman Benson 1930-5-3 2110 San Mateo Woods, above Woodside, Santa Cruz Mtns. 366 Comment
  JEPS127872  Calochortus luteus Adam C. Schneider 2013-5-17 159 San Mateo Crystal Springs Reservoir Comment
  UC648348  Calochortus luteus Marion Ownbey and Ruth P. Ownbey 1938-7-7 1699 San Mateo above Searsville Lake; Santa Cruz Mountains Comment
  CAS-BOT-BC491980  Calochortus luteus R. Hoffough 1929-5-25 214 San Mateo Sand Hill Road, Palo Alto Comment
  CAS-BOT-BC491987  Calochortus luteus F. H. Lamb 1895-6-14 s.n. San Mateo Along the San Francisquito Creek near St. Michaels' church Comment
  CAS-BOT-BC389721  Calochortus tolmiei M. K. Wicksten 1971-6-16 39 San Mateo Huddart Prk. Comment
  UC203047 Image available Calochortus venustus A. D. E. Elmer Jul 1903 4763 San Mateo Portola Comment
  JEPS23958  Calycadenia multiglandulosa John H. Thomas 1959-8-22 8077 San Mateo about 5 mi sw of Palo Alto (Jasper Ridge); Jasper Ridge 152 Comment
  JROH563  Calycadenia multiglandulosa John H. Thomas 1968-10-29 14858 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH570  Calycadenia multiglandulosa John Hunter Thomas 1983-6-29 22717 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR70789  Calycadenia multiglandulosa L. S. Rose 1934-5-23 34278 San Mateo Emerald Lake. 160 Comment
  RSA124773  Calycadenia multiglandulosa subsp. robusta John H. Thomas 1958-11-22 7506 San Mateo Jasper Ridge, about 5 miles SW of Palo Alto 152 Comment
  CAS-BOT-BC436447  Calystegia occidentalis Elizabeth McClintock; Phillip C. Wheeler 1967-6-11 s.n. San Mateo San Bruno Mountain, slope to S of new Guadalupe Parkway just before it meets Radio Road Comment
  RSA130963  Calystegia purpurata Josephine Randall 1907-7-24 105 San Mateo Near Crystal Springs Lake. Comment
  UC306753  Calystegia purpurata A. D. E. Elmer June, 1903 4299 San Mateo Pescadero Comment
  SJSU8769  Calystegia purpurata D. D. Kohler 1963-5-18 116 San Mateo Moss Beach c. 5 mi N of Half Moon Bay Comment
  CAS-BOT-BC224649  Calystegia purpurata subsp. purpurata George Oberlander 1949-7-24 308 San Mateo San Franciso Watershed Reserve. Sawyer Ridge Comment
  JROH1840  Calystegia purpurata subsp. purpurata John H. Thomas 1969-6-4 15112 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC436440  Calystegia subacaulis George Oberlander 1950-4-16 739 San Mateo San Francisco Watershed Reserve, south boundary 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
  JEPS43862  Camissoniopsis cheiranthifolia subsp. cheiranthifolia William S. Cooper 1924-11-19 37 San Mateo Ano Nuevo Pt. Comment
  CAS-BOT-BC37163  Capsella bursa-pastoris George Oberlander 1949-5-13 169 San Mateo San Francisco Watershed. North boundary. Comment
  CAS-BOT-BC37663  Cardamine californica W. R. Dudley 1904-4-7 s.n. San Mateo Santa Cruz Mountain Peninsula. By Los Francos Creek 1.5 mile above Judge Allens. Comment
  CAS-BOT-BC37667  Cardamine californica LeRoy Abrams 1902-3-16 2274 San Mateo Kings Mountain Road. Comment
  CAS-BOT-BC37691  Cardamine californica Alice Eastwood 1933-4-30 s.n. San Mateo Lake Pilarcitos. Comment
  UCD114192  Cardamine californica Janet Jacob 1951-4-1 54 San Mateo 7 miles eeast of Pescadero. Comment
  SEINET5542289  Cardamine californica var. integrifolia H. S. Gentry 1931-1 16 San Mateo 1.5 miles W of San Mateo, Half-Moon Bay road. Comment
  UC136067  Cardamine californica var. sinuata C. F. Baker 1902-4-12 501 San Mateo La Honda Comment
  SEINET12004997  Cardamine integrifolia Patterson 1907-1 s.n. San Mateo Kings Mt., Santa Cruz Mountain peninsula Comment
  JEPS23926  Cardamine oligosperma LeRoy Abrams 1902-4-5 2308 San Mateo Searsville Comment
  HSC24047  Carduus tenuiflorus Mary Katherine Wicksten 1971-7-15 26 San Mateo Huddart Park Comment
  NY25686  Carex amplifolia L. S. Rose 1933-6-23 33250 San Mateo Kings Mountain Comment
  SEINET7273593 Image available Carex amplifolia L. S. Rose 1933-6-23 33250 San Mateo Kings Mountain Comment
  JROH4318  Carex barbarae W. Lennihan 1989-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Indian Meadow just before Rattlesnake Rock. Comment
  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
  CAS-BOT-BC19543  Carex bolanderi Lewis S. Rose 1933-6-23 33253 San Mateo Kings Mountain. Comment
  JROH4321  Carex bolanderi Carol Zabel, Toni Corelli 2005-6-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Trail 13 south of Leonard's Bridge. 106 Comment
  CAS-BOT-BC34071  Carex brevicaulis W. R. Dudley 1900-3-17 s.n. San Mateo The Santa Cruz Mountain Peninsula. Field north of Seal Cove. Comment
  CAS-BOT-BC18929  Carex densa A. D. E. Elmer 1903-6-1 4428 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC18946  Carex densa Kellogg; Brannan 1870-6-1 s.n. San Mateo San Gregorio Creek. Comment
  JROH4333  Carex densa Toni Corelli 2005-4-20 285 San Mateo Jasper Ridge Biological Preserve, Stanford University; south of Road F 184 Comment
  UC823332  Carex densa John Thomas Howell 1938-5-1 13786 San Mateo near South San Francisco Comment
  UCD140266  Carex densa Alice Eastwood; John Thomas Howell, J. W. Stacey 1938-4-24 5246 San Mateo Half Moon Bay. Comment
  UCD140267  Carex densa Alice Eastwood; John Thomas Howell 1937-5-7 4327 San Mateo Visatacion Valley. Comment
  RSA304145  Carex dudleyi L. S. Rose 1937-4-30 37243 San Mateo Brisbane. 6 Comment
  SEINET3128116  Carex dudleyi L. S. Rose 1939-4-14 39064 San Mateo South San Francisco 15 Comment
  JROH4337  Carex globosa John Hunter Thomas 1981-4-5 20292 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek. Comment
  CAS-BOT-BC21811  Carex harfordii Lewis S. Rose 1935-5-29 35194 San Mateo Kings Mountain. Comment
  UCR279902  Carex harfordii Peter Rubtzoff 1975-5-21 7968 San Mateo Central Coast, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction 220 Comment
  CAS-BOT-BC21809  Carex harfordii Elizabeth McClintock; Paul Reeberg 1988-4-14 s.n. San Mateo Bayshore Blvd. Comment
  CAS-BOT-BC119347  Carex obnupta George Thomas Oberlander 1950-5-6 828 San Mateo Pilarcitos Lake, Marsh. Comment
  RSA100991  Carex obnupta G. Oberlander 1950-5-6 828 San Mateo Pilarcitos Lake. San Francisco Watershed Reserve. Comment
  CAS-BOT-BC176401  Carex obnupta Peter Rubtzoff 1976-10-5 8906 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
  SJSU16013  Carex serratodens John Rawlings, Ken Hickman 2016-5-26 1813 San Mateo Serpentine seep area (Fountain thistle seep) up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  SEINET3100624  Carex serratodens Neal Kramer 2012-3-3 2031 a San Mateo Stulsart Park, Redwood City Comment
  SEINET7547018  Carex serratodens C. F. Baker 1902-1 811 San Mateo Crystal Springs Lake Comment
  SEINET7575205 Image available Carex serratodens Wilhelm Suksdorf 1913-6-22 248 San Mateo Crystal Springs Lake. Comment
  JROH5662  Carex subbracteata John Rawlings 2014-5-19 1252 San Mateo Jasper Ridge Biological Preserve, Stanford University. At west edge of California semaphore grass vernal depression. 122 Comment
  RSA100974  Carex subbracteata G. Oberlander 1950-4-22 633 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve. Comment
  SEINET10750022  Carex subbracteata Alice Eastwood, John Thomas Howell; J. W. Stacey 1938-4-24 Eastwood 5245 San Mateo Half Moon Bay. Comment
  SEINET7577065 Image available Carex subbracteata John Thomas Howell 1938-5-1 13778 San Mateo Near South San Francisco. Comment
  CAS-BOT-BC116815  Carex subbracteata var. subbracteata John Thomas Howell 1938-5-1 13776 San Mateo San Bruno Hills Comment
  CAS-BOT-BC116819  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell 1937-5-7 4326 San Mateo Visatacion Valley. Comment
  CAS-BOT-BC116820  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell; J. W. Stacey 1938-4-24 5254 San Mateo 2 mi N of Pescadero Comment
  CAS-BOT-BC116827  Carex subbracteata var. subbracteata W. R. Dudley 1908-6-26 s.n. San Mateo Edge of Pond, near Coal Mine Ridge Road. Comment
  CAS-BOT-BC115511  Carex tumulicola W. R. Dudley 1910-5-26 s.n. San Mateo Coal Mine Ridge near Black Mountain Comment
  CAS-BOT-BC176395  Carex tumulicola Peter Rubtzoff 1975-5-21 7974 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. 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
  UCSB1817  Carpobrotus chilensis Walker, Clifford 1954-4-20 San Mateo 50 yards from ocean, 1 mile south of Half Moon Bay Comment
  UC84186  Carthamus lanatus T. S. Brandegee 1891-7-1 San Mateo South San Francisco Comment
  CAS-BOT-BC249185  Castilleja affinis James McMurphy 1907-5-19 s.n. San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC249189  Castilleja affinis E. W. Rust 1907-4-27 120 San Mateo Kings Mountain Comment
  RSA10376B  Castilleja affinis H. A. Barker 1926-5-1 606 San Mateo Kings Mt. Comment
  CAS-BOT-BC249190  Castilleja affinis W. R. Dudley 1896-4-19 s.n. San Mateo Santa Cruz Peninsula. Above Alpine School House, Alpine Comment
  SEINET5542520  Castilleja affinis H. S. Gentry 1931-1 99 San Mateo 1 mile SE of Holy Cross Cemetery. Comment
  JEPS6925  Castilleja affinis subsp. affinis Rimo Bacigalupi with G. Thomas Robbins 1954-6-18 4552 San Mateo 0.25 mi below Portola State Park road junction with the Alpine Road (along road to Portola State Park) Comment
  JEPS86438  Castilleja affinis subsp. affinis L. R. Heckard 1988-6-9 6679 San Mateo Pescadero Beach State Park Comment
  JEPS88832  Castilleja affinis subsp. affinis T. I. Chuang 1991-7-20 7878 San Mateo Mussel Rock Comment
  JROH3945  Castilleja affinis subsp. affinis John Hunter Thomas 1978-4-20 19091 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1032388  Castilleja affinis subsp. affinis G. E. Sindel 1935-7-24 311 San Mateo Mouth of Pesacdero Creek Mouth of Pescadero Creek; Santa Cruz Quad. 3 Comment
  CDA41346  Castilleja affinis subsp. affinis T. I. Chuang 1991-7-2 7878 San Mateo Mussel Rock. 0 Comment
  UCSC006159  Castilleja ambigua Randall Morgan 1999-7-12 3588 San Mateo ca. 1+ mile north of Bean Hollow State Beach Comment
  JEPS6959  Castilleja ambigua subsp. ambigua Peter H. Raven 1950-4-30 1964 San Mateo Montara 15 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
  SD88447  Castilleja ambigua subsp. ambigua Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay Comment
  SJSU15806  Castilleja ambigua subsp. ambigua Toni Corelli 2015-5-3 1194 San Mateo Northern edge of Fitzgerald Marine Reserve, and private property adjacent in Moss Beach also know as Vallemar Bluff 14 Comment
  UC205039  Castilleja ambigua subsp. ambigua Katharine Brandegee 1917-7-15 San Mateo Moss Beach Comment
  JROH3975  Castilleja densiflora subsp. densiflora John H. Thomas 1957-4-16 6659 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  JROH3985  Castilleja densiflora subsp. densiflora John Hunter Thomas 1985-5-2 23581 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5616  Castilleja densiflora subsp. densiflora John Rawlings 2014-5-3 1220 San Mateo Jasper Ridge Biological Preserve, Stanford University. South of the power pole mound where dear-browsed shrubby coast live oaks begin transition into San Francisquito Creek riparian corridor. 89 Comment
  JEPS66228  Castilleja foliolosa T. I. Chuang with Fei-Mei Chuang 1971-6-12 6911 San Mateo 5.8 mi ne Big Basin Comment
  CAS-BOT-BC243828  Castilleja latifolia David D. Keck 1932-5-11 1768 San Mateo Two miles north of San Gregorio Comment
  CAS-BOT-BC243841  Castilleja latifolia John Thomas Howell 1933-4-9 10969 San Mateo Coastal hillside between Pescadero and Pigeon Pt. Comment
  SD4825  Castilleja latifolia Ulysses S. Grant IV June 1925 San Mateo near La Honda Comment
  SEINET12288718  Castilleja latifolia M. T. Doutt 1931-1 235 San Mateo S of San Francisco Comment
  UCR139352  Castilleja lithospermoides David D. Keck 1932-5-6 1493 San Mateo San Francisco Bay Region, east side of Crystal Springs Lake 60 Comment
  UCR240614  Castilleja lithospermoides T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3522 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  JEPS49067  Castilleja rubicundula subsp. lithospermoides Lewis S. Rose 1966-5-2 66034 San Mateo w of Redwood City; Emerald Lake 91 Comment
  JROH3994  Castilleja rubicundula subsp. lithospermoides John H. Thomas 1961-4-8 9072 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4005  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1982-4-30 20879 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JEPS3664  Castilleja subinclusa subsp. franciscana V. F. Hesse 1951-7-27 754 San Mateo near Whitehouse Creek Road out of Big Basin (about 2 mi from seacoast) Comment
  JEPS3821  Castilleja subinclusa subsp. franciscana James G. Daly Apr 1935 260 San Mateo near La Honda (San Gregorio watershed); Santa Cruz Mts., San Gregorio Comment
  JEPS88801  Castilleja subinclusa subsp. franciscana T. I. and F. M. Chuang 1991-7-3 7859 San Mateo 0.8 mi sw Interstate 280 junction with Route 92 (on Route 92) Comment
  JEPS34471  Castilleja wightii L. R. Heckard, and R. Bacigalupi 1963-7-2 1360 San Mateo nw slope Montara Peak (trail to Montara Peak, above old county road) 304 Comment
  JEPS3674  Castilleja wightii C. R. Bell 1951-3-25 922 San Mateo e of Daly City (maritime slopes of Colma Canyon); Colma Canyon Comment
  UC198269  Castilleja wightii Katharine Brandegee 1917-7-22 San Mateo Mussel Rock Station, Ocean Shore Railway Comment
  CDA41387  Castilleja wightii T. I. & F. M. Chuang 1991-7-1 7846 San Mateo 1.1 mile north of Montara. 0 Comment
  JEPS103882  Castilleja wightii T. I. Chuang and F. M. Chuang 1991-7-1 7847 San Mateo ca. 7 miles South of halfmoon Bay. Comment
  JEPS34453  Castilleja wightii L. R. Heckard 1963-7-18 1341 San Mateo 2.7 mi s Calif. Hwy. 1 road junction with Pescadero road (along Calif Hwy. 1); Bean Hollow Beach County Park (Arroyo de los Frijoles) Comment
  POM248731  Castilleja wightii J. T. Howell 1938-5-1 13767 San Mateo Colma Canyon. Comment
  RSA18358  Castilleja wightii Carl B. Wolf 1929-5-25 3730 San Mateo Just north of Pigeon Pt. Comment
  SEINET8212805  Castilleja wightii A. D. E. Elmer 1903-1 4761 San Mateo San Pedro. Comment
  CAS-BOT-BC39382  Caulanthus lasiophyllus Fred Hemphill 1973-4-15 685 San Mateo North of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC39383  Caulanthus lasiophyllus Paul Arnaud 1941-5-3 s.n. San Mateo Redwood City, Jefferson Avenue. Comment
  LA41998  Ceanothus cuneatus Lewis S. Rose; 1932-2-27 3246 San Mateo Belmont Comment
  POM285181  Ceanothus cuneatus Lyman Benson 1929-3-2 991 San Mateo East of Lake Searsville Comment
  JROH3524  Ceanothus cuneatus var. cuneatus John H. Thomas 1975-5-2 17848 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG32289  Ceanothus cuneatus var. dubius L. S. Rose 1964-3-23 64011 San Mateo Emerald Lake, W of Redwood City 121 Comment
  RSA130826  Ceanothus oliganthus W. R. Dudley 1902-5-17 s.n. San Mateo King Mountain rd. Comment
  CAS-BOT-BC51596  Ceanothus oliganthus var. sorediatus H. A. Borthwick 1920-4-21 74 San Mateo Strawberry Bend, Corte Madera Cr. Comment
  POM136517  Ceanothus oliganthus var. sorediatus A. D. E. Elmer 1903-05 4479 San Mateo Towards San Mateo; Crystal Springs Lake. Comment
  CAS-BOT-BC51242  Ceanothus papillosus J. I. McMurphy 1906-5-20 13 San Mateo Santa Cruz Peninsula - King's Mt. Santa Cruz Mts. 457 Comment
  POM190252  Ceanothus papillosus D. D. Keck 1932-5-11 1774 San Mateo E side of Kings Mtn, on Kings Mtn road. 503 Comment
  UC1174505  Ceanothus papillosus LeRoy Abrams 1902-5-20 2412 San Mateo King's Mountain Comment
  UC870626  Ceanothus papillosus H. A. Lewis 1908-4-20 San Mateo near Crystal Springs Lakes; near Crystal Springs Lakes 213 Comment
  CAS-BOT-BC52277  Ceanothus thyrsiflorus Javier Penalosa 1963-3-9 2680 San Mateo Slopes southeast of 1314 ft. summit 381 Comment
  CAS-BOT-BC52290  Ceanothus thyrsiflorus Ira L. Wiggins 1925-4-1 1654 San Mateo On Kings Mountain Road three fourths of a mile above Woodside Comment
  CAS-BOT-BC52294  Ceanothus thyrsiflorus J. I. McMurphy 1906-5-8 12 San Mateo Woodside, Santa Cruz Mts. 121 Comment
  CAS-BOT-BC52299  Ceanothus thyrsiflorus W. R. Dudley 1894-3-25 s.n. San Mateo By road from San Gregorio to Pescadero Comment
  POM136452  Ceanothus thyrsiflorus Stewart H. Burnham 1894-4-21 1586 San Mateo [Unspecified] Comment
Read comments
Aug 11 2010
  POM177456  Centaurea calcitrapa L. R. Abrams, I. L. Wiggins 1930-11-13 174 San Mateo Hillside above Crystal Springs Lake Comment
  UC463564  Centaurea calcitrapa L. R. Abrams and I. L. Wiggins 1930-11-13 174 San Mateo above Crystal Springs Lake Comment
  CAS-BOT-BC274592  Centaurea calcitrapa Phillip C. Wheeler 1965-6-21 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  RSA131005  Centaurea calcitrapa H. L. Mason 1921-10 s.n. San Mateo County Hospital, Belmont. Crystal Springs Road Comment
  UCD130007  Centaurea calcitrapa P. B. Kennedy 1916-5-7 s.n. San Mateo vacants lots around Burlingame. Comment
  CAS-BOT-BC277128  Centaurea melitensis John H. Thomas 1963-7-19 10199 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC277230  Centaurea solstitialis John H. Thomas 1958-3-19 7044 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  JROH605  Centaurea solstitialis John Hunter Thomas 1977-6-16 18765 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH611  Centaurea solstitialis John Hunter Thomas 1991-11-21 26109 San Mateo Jasper Ridge Biological Preserve, Stanford University; SLAC corridor Comment
  RSA17963  Centaurea solstitialis C. B. Wolf 1927-8-13 716 San Mateo Woodside Comment
  CAS-BOT-BC277227  Centaurea solstitialis George Oberlander 1949-7-24 268 San Mateo San Francisco Watershed Reserve. South of San Andreas Lake 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
  CHSC56085  Centaurium tenuiflorum Jan M. Karaz 1979-5-27 60 San Mateo 3 mi east of Hwy 280 intersection with Woodside Road, 1.2 mi east of Woodside on Mountain Home Road. 7 Comment
  HSC5817  Centromadia pungens L. S. Rose 1965-9-20 65106 San Mateo Burlingame, Trousdale Dr. and California Dr. 9 Comment
  UC149594  Centromadia pungens subsp. pungens L. R. Abrams 1903-9-26 4017 San Mateo Menlo Park Comment
  UC702541  Centromadia pungens subsp. pungens L. S. Rose 1941-10-10 41463 San Mateo along the Bayshore Boulevard 3 Comment
  JROH1689  Cerastium glomeratum John H. Thomas 1961-4-8 9078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1692  Cerastium glomeratum John H. Thomas 1969-4-20 14897 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1696  Cerastium glomeratum John Hunter Thomas 1983-4-5 21328 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  UC1084416  Cerastium glomeratum G. Thomas Robbins 1937-4-11 101 San Mateo near Spring Valley Lakes along rd. to Woodside Comment
  UC311136  Cerastium glomeratum A. D. E. Elmer April, 1903 4473 San Mateo San Bruno Hills Comment
  CAS-BOT-BC388393  Cerastium glomeratum Margaret A. Barry 1937-5-15 89 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC400166  Ceratophyllum demersum W. R. Dudley 1909-11-8 s.n. San Mateo Santa Cruz Mountain Peninsula. Hallidie Ranch, Portola Valley Comment
  JROH3622  Cercocarpus betuloides var. betuloides John H. Thomas 1961-6-14 9541 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3623  Cercocarpus betuloides var. betuloides John H. Thomas 1964-4-7 10301 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near edge of Searsville Lake. Comment
  JROH3627  Cercocarpus betuloides var. betuloides John Hunter Thomas 1981-7-24 20730 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3631  Cercocarpus betuloides var. betuloides John Hunter Thomas 1989-5-30 24754 San Mateo Jasper Ridge Biological Preserve, Stanford University. Knoll to the west of the dam Comment
  CAS-BOT-BC497727  Chlorogalum pomeridianum John H. Thomas 1963-5-20 10127 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC497730  Chlorogalum pomeridianum Walter & Irja Knight 1964-5-4 s.n. San Mateo Colma Canyon 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
  UCSB17648  Chlorogalum pomeridianum Schulte, John 1963-4-27 San Mateo Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  JROH4644  Chlorogalum pomeridianum var. pomeridianum George Pilz 1963-6-10 43 San Mateo Jasper Ridge Biological Preserve, Stanford University 60 Comment
  RSA133889  Chlorogalum pomeridianum var. pomeridianum John H. Thomas 1958-6-11 7222 San Mateo About 4.3 miles due E of Belmont near Crystal Springs Reservoir. 91 Comment
  CAS-BOT-BC191592  Chorizanthe cuspidata var. cuspidata W. R. Dudley 1901-5-11 s.n. San Mateo near Colma. Santa Cruz Mountain Peninsula Comment
  SEINET10623943 Image available Chorizanthe cuspidata var. marginata Adolph D. E. Elmer Elmer 4828 San Mateo San Pedro, California. Comment
  RSA489244  Chorizanthe membranacea C. Rose Broome, Cristalyn M. Cagle 1978-6-17 2166 San Mateo Nacimiento - Ferguson Road 3 miles east of its junction with California Highway 1, and 4.1 miles west of Nacimiento Guard Station, Los Padres National Forest 427 Comment
  SEINET4183191  Chorizanthe robusta K. Brandegee 1905-1 San Mateo Comment
  RSA159419  Chrysanthemum coronarium John H. Thomas 1961-5-7 9245 San Mateo Colma, near intersection of El Camino Real and F Street 46 Comment
  JEPS78655  Chrysolepis chrysophylla Edward Lee 1936-1-26 1727 San Mateo 4.5 mi out Woodside (Kings Mountain Road, e side of Cahill Ridge); Cahill Ridge Comment
  POM270420  Chrysolepis chrysophylla Lyman Benson 1932-7-25 3953 San Mateo Kings Mt. above Woodside; San Francisquito Cr. watershed. 305 Comment
  UCSC000177  Chrysolepis chrysophylla var. chrysophylla C. M. Belshaw 1935-1-25 1462 San Mateo 4.5 miles W. of Woodside 610 Comment
  CAS-BOT-BC36403  Chrysolepis chrysophylla var. minor Oliver W. Norvell 1931-2-22 1320 San Mateo Kings Mt. Road Comment
  CAS-BOT-BC36407  Chrysolepis chrysophylla var. minor Walter Knight; Irja Knight; James B. Roof; Gregory Whipple; Al Senenes 1969-9-22 2793 San Mateo Montara Mountain. North facing slope along dirt road to summit 365 Comment
  RSA187410  Cicendia quadrangularis John H. Thomas 1966-4-2 11545 San Mateo Jasper Ridge Biological Experimental Area, about five miles southwest of Palo Alto. Along road at the Searsville end. Comment
  JROH627  Cichorium intybus Ann Lambrecht 2007-8-29 31 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek below Dennis Martin marker Comment
  CAS-BOT-BC277896  Cirsium brevistylum L. R. Abrams; I. L. Wiggins 1939-6-3 427 San Mateo Ano Nuevo Point Comment
  CDA21620  Cirsium brevistylum D. G. Kelch, B. G. Baldwin 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  JROH628  Cirsium brevistylum John H. Thomas 1961-6-7 9535 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC100937  Cirsium fontinale var. fontinale H. K. Sharsmith 1937-6-3 3951 San Mateo near road which connects Skyline Boulevard with road to Belmont. About 3 miles west of San Mateo, Crystal Springs Lake 152 Comment
  UC1416532  Cirsium fontinale var. fontinale George E. Pilz 1972-5-22 789 San Mateo e side of Crystal Springs Reservoir, Interstate 280 cuts through colony Crystal Springs Reservoir 121 Comment
  JROH630  Cirsium occidentale var. occidentale John Hunter Thomas 1979-6-12 19590 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam near "old" low-flow crossing Comment
  RSA34005  Cirsium occidentale var. venustum J. Wendell Howe 1930-5-21 s.n. San Mateo Hillside near Alpine Creek Comment
  CAS-BOT-BC280523  Cirsium quercetorum A. D. E. Elmer 1903-6-1 4290 San Mateo Crystal Springs Lake Comment
  RSA0070861  Cirsium quercetorum John H. Thomas 1958-6-11 7227 San Mateo About 4.3 miles due E of Belmont near Crystal Springs Reservoir. 91 Comment
  UC175180  Cirsium quercetorum W. N. Suksdorf 1913-6-28 114 San Mateo San Bruno San Francisco Area, San Bruno Comment
  JROH640  Cirsium vulgare John Hunter Thomas 1977-6-16 18799 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285859  Cirsium vulgare Ira L. Wiggins 1977-7-23 22189 San Mateo Northerly side of San Francisquito Creek stream bed, ca 150 m upstream from Pope Street bridge, Menlo Park Comment
  UCD104853  Clarkia purpurea W. A. Harvey; J. M. Tucker 1948-6-29 1710 San Mateo Beside road to Portola State Park, just W of junction with Highway 5 (Skyline Boulevard). Comment
  CAS-BOT-BC163967  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1894-7-30 s.n. San Mateo Near La Honda Comment
  CAS-BOT-BC163973  Clarkia purpurea subsp. quadrivulnera Margaret A. Barry 1937-5-15 145 San Mateo Exposed slopes on Coal Mine Ridge Comment
  JROH3008  Clarkia purpurea subsp. viminea Duncan M. Porter 1960-5-26 702 San Mateo Jasper Ridge Biological Preserve, Stanford University; N part of ridge, above Searsville Lake Comment
  CAS-BOT-BC165129  Clarkia rubicunda Josephine D. Randall 1907-7-23 268 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC165133  Clarkia rubicunda R. W. Thorp 1963-7-11 63 -60 San Mateo Rockaway Beach, Pacifica Comment
  CAS-BOT-BC165146  Clarkia rubicunda Phillip C. Wheeler 1965-6-19 s.n. San Mateo [Serra] Sierra Point Comment
  CAS-BOT-BC165158  Clarkia rubicunda Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  CAS-BOT-BC165173  Clarkia rubicunda W. R. Dudley 1902-9-21 s.n. San Mateo Near Crystal Springs Reservoir Comment
  JEPS29416  Clarkia rubicunda L. R. Heckard 1961-7-16 1263 San Mateo ne transmitting station KQED (near summit of mountain); San Bruno Mt. 335 Comment
  JROH3019  Clarkia rubicunda John H. Thomas 1974-6-30 17457 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1071884  Clarkia rubicunda H. and M. Lewis 1951-6-28 862 San Mateo 0.6 mi s of road to Redwood City (Hwy. 1); Tunitas Creek Comment
  UC1279917  Clarkia rubicunda Peter H. Raven 1957-6-30 11016 San Mateo 5.3 mi e Pescadero (on road along creek); Pescadero Creek Comment
  UC1279951  Clarkia rubicunda Peter H. Raven 1957-6-30 11012 San Mateo near bridge Tunitas Creek (along State Highway 1) Comment
  UC930770  Clarkia rubicunda Mrs. Phipps July 1922 San Mateo Tunitas Creek Comment
  CAS-BOT-BC165125  Clarkia rubicunda W. R. Dudley 1909-10-4 s.n. San Mateo By roadside to N. Pond, below Mussel Rock Comment
  CAS-BOT-BC165139  Clarkia rubicunda Peter H. Raven 1957-6-30 11011 San Mateo 1.8 miles south of Sharp Park on State Highway 1 Comment
  OBI12094  Clarkia rubicunda Lewis S. Rose 1957-7-6 57117 San Mateo Skyline blvd. W of San Mateo 183 Comment
  RSA118919  Clarkia rubicunda L. S. Rose 1957-7-6 57117 San Mateo Skyline Blvd. west of San Mateo 183 Comment
  RSA18290  Clarkia rubicunda Carl B. Wolf 1927-6-21 427 San Mateo East slope of Kings Mt. Comment
  RSA41288  Clarkia rubicunda Robert F. Hoover 1941-5-20 5108 San Mateo Redwood City hills Comment
  RSA458855  Clarkia rubicunda E. S. Spalding 1924-8-3 s.n. San Mateo 3 miles west of Redwood City Comment
  SJSU11020  Clarkia rubicunda P. L. Rucker 1963-7-20 San Mateo Alpine Rd Comment
  UC1279916  Clarkia rubicunda Peter H. Raven 1957-6-30 11017 San Mateo 3.0 mi from State Highway 5 (Skyline Boulevard) (on road to Portola State Park) Comment
  UC1279948  Clarkia rubicunda Peter H. Raven 1957-7-4 11046 San Mateo 6.1 mi from San Gregorio (on road to La Honda); San Gregorio Creek Comment
  RSA73309  Clarkia rubicunda subsp. blasdalei F. W. Peirson 1925-9-13 6423 San Mateo Rockaway beach Comment
  CAS-BOT-BC165600  Clarkia unguiculata Josephine D. Randall 1907-6-5 258 San Mateo Los Trancos Road near Stanford University Comment
  UCD100726  Claytonia perfoliata E. Jacqueline Garcia 1986-4-19 s.n. San Mateo San Bruno Mountains, 0.25 mile from Summit Loop trailhead on Guadeloupe Canyon Road. Comment
  CAS-BOT-BC439986  Claytonia perfoliata subsp. mexicana John M. Miller 1977-3-23 590 San Mateo Purisimo Canyon; Hwy. 1, 4 mi. E of Hwy. 1 on Purisimo Canyon Road. Comment
  JROH3345  Claytonia perfoliata subsp. perfoliata John H. Thomas 1967-3-13 12410 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC443655  Claytonia perfoliata subsp. perfoliata Peter H. Raven 1951-2-18 2728 San Mateo Brisbane Comment
  JROH5687  Clematis lasiantha John Rawlings 2015-3-3 1311 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 9. 194 Comment
  RSA119755  Clematis lasiantha J. C. Murphy 1906-5-20 19 San Mateo Santa Cruz Mts. Comment
  JROH2876  Clinopodium douglasii D. E. Breedlove 1971-5-31 19366 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  UCD164461  Clinopodium douglasii Peter Rubtzoff 1977-6-21 9064 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC499371  Clintonia andrewsiana K. Hofpaugh 1929-5-11 210 San Mateo Redwood forest 3 miles east of La Honda Comment
  CAS-BOT-BC499398  Clintonia andrewsiana W. R. Dudley 1893-5-27 s.n. San Mateo Between Woodside and Summit Springs Comment
  CAS-BOT-BC499404  Clintonia andrewsiana L. R. A. 1902-5-22 2465 San Mateo Kings Mountain Comment
  SEINET12047074  Clintonia andrewsiana F. H. Utech, Utech, C. L. 1972-1 72 -601 San Mateo road between Pescadero and La Honda, ca 2.5 mi before the junction with CA 84 183 Comment
  RSA130676  Collinsia heterophylla Josephine Randall 1907-6-8 384 San Mateo Portola Valley. Santa Cruz Peninsula. Comment
  RSA104877  Collinsia heterophylla Elizabeth Sprague 1956-5-28 s.n. San Mateo 2 miles east of Skyline Drive on La Honda Rd. Comment
  JEPS121051  Collinsia multicolor Janell M. Hillman 2012-4-29 San Mateo San Bruno Mountain. Comment
  RSA296437  Collinsia multicolor A. Martin 1957-5-23 s.n. San Mateo Upper edge of the town Brisbane, SW slope of San Bruno Hills 198 Comment
  UC765656  Collinsia multicolor R. F. Hoover 1941-4-23 4901 San Mateo San Mateo Creek below Crystal Springs Dam Comment
  JEPS47718  Collinsia sparsiflora var. collina Elizabeth McClintock 1965-3-21 San Mateo n side of San Bruno Mountain (1/4 mi e of Brisbane power lines) Comment
  RSA101013  Collomia heterophylla G. Oberlander 1950-4-23 816 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve Comment
  RSA59639  Collomia heterophylla Verne Grant, Alva Grant 1950-6-28 8921 San Mateo west side of Kings Mt. on Tunitas Creek road Comment
  RSA161348  Conium maculatum P. H. Raven 1961-8-24 16588 San Mateo East side of Crystal Springs Lake Comment
  JROH1853  Convolvulus arvensis John Hunter Thomas 1986-6-3 24078 San Mateo Jasper Ridge Biological Preserve, Stanford University; old racing bowl Comment
  JROH1857  Convolvulus arvensis John Hunter Thomas 1989-5-9 24701 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285995  Conyza bonariensis John H. Thomas 1961-8-27 9692 San Mateo Colma. Near intersection of El Camino Real and F Street 45 Comment
  CAS-BOT-BC286209  Conyza canadensis Walter Knight; Irja Knight; Elizabeth McClintock 1964-9-11 s.n. San Mateo San Bruno Mountain. Point San Bruno Comment
  CAS-BOT-BC286205  Conyza canadensis R. E. Frenkel 1963-12-7 323 San Mateo San Francisco Water District, 1.5 miles north of Halfmoon [Half Moon] Bay Club Comment
  JROH4765  Corallorhiza striata John Hunter Thomas 1985-4-25 23568 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM226854  Cordylanthus maritimus subsp. palustris L. R. Abrams 1914-7-16 s.n. San Mateo Cooley's Landing on San Francisco Bay Comment
  JROH4025  Cordylanthus pilosus subsp. pilosus John H. Thomas 1970-7-5 15660 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA17972  Cordylanthus pilosus subsp. pilosus Carl B. Wolf 1927-7-28 707 San Mateo Los Trancos Creek, 2 mi back of Stanford University. Comment
  JROH4034  Cordylanthus rigidus subsp. rigidus Deane Bowers 1980-8-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University, outskirts just down the road from the Escobar entrance Comment
  UC87472  Corethrogyne filaginifolia Katharine Brandegee 1905-6-20 San Mateo near Lake Pilarcitos Comment
  POM132435  Cornus californica C. F. Baker 1902-9-2 1551 San Mateo Crystal Springs Lake. Comment
  POM287561  Cornus californica Arthur L. Cohen 1935-2-22 525 San Mateo King's Mountain Road; Mt. Range: Santa Cruz; Watershed: San Francisco Bay. 152 Comment
  UC527529  Cornus glabrata C. B. Wolf 1931-8-20 San Mateo 3 mi. w. Mayfield (on rd. to La Honda) 91 Comment
  CAS-BOT-BC210360  Cornus sericea Walter Knight; Walter Knight 1963-6-24 s.n. San Mateo San Bruno Mountain. Quarry 4 Comment
  CDA18374  Cortaderia selloana G. D. Barbe 1978-9-26 2440 San Mateo Skylawn Memorial Park; drive from Hwy 92 into the park. 716 Comment
  NY42441  Cortaderia selloana J. B. Walker 1994-8-15 910 San Mateo N edge of town 10 Comment
  UC1206477  Corylus californica Le Roy Abrams 1902-3-16 2271 San Mateo Kings Mountain Comment
  JROH1335  Corylus cornuta subsp. californica John H. Thomas 1976-10-16 18430 San Mateo Jasper Ridge Biological Preserve, Stanford University; along or near San Francisquito Creek from the low flow crossing to the vicinity of the old fire place ruins downstream Comment
  RSA481440  Corylus cornuta var. californica Paul C. Silva 1948-1-31 2621 San Mateo Skyline Blvd. just north of junction of Alpine Creek Road. 701 Comment
  CAS-BOT-BC453504  Cotoneaster lacteus Elizabeth McClintock 1978-7-1 s.n. San Mateo Colma Canyon; San Bruno Mountains Comment
  JROH3639  Cotoneaster pannosus John Hunter Thomas 1981-4-23 20466 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH659  Cotula australis John H. Thomas 1979-4-8 19445 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC287308  Cotula australis Peter H. Raven 1951-2-8 2731 San Mateo Summit ridge, San Bruno Mts Comment
  CAS-BOT-BC291465  Cotula coronopifolia John H. Thomas 1963-5-20 10100 San Mateo Ano Nuevo Island about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC291469  Cotula coronopifolia Elmer I. Applegate 1895-3-9 293 San Mateo Field near Woodside Comment
  CAS-BOT-BC291470  Cotula coronopifolia R. Bacigalupi 1941-10-22 2747 San Mateo Very close to the San Francisco - San Mateo County Line Comment
  CAS-BOT-BC291477  Cotula coronopifolia John Thomas Howell 1924-9-28 660 San Mateo Leslie Salt Rifinery, San Mateo Comment
  RSA101041  Cotula coronopifolia G. Oberlander 1950-5-6 933 San Mateo Marsh, north boundary, San Francisco Watershed Reserve Comment
  UC1776756  Cotula mexicana D. Pendleton 2002-3-21 PDR 65823 San Mateo Sharp Park Golf Course, Pacifica Comment
  UCSC007735  Crassula connata Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UC571142  Crassula tillaea Herbert L. Mason 1927-4-23 3690 San Mateo along roadside between La Honda and Pescadero Creek Comment
  CDA21572  Crepis vesicaria subsp. taraxacifolia D. G. Kelch 2000-4-8 0 .139 San Mateo S of Woodside along I-680. Comment
  JROH1952  Croton setiger John H. Thomas 1958-11-22 7508 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1953  Croton setiger John H. Thomas 1958-11-22 7508 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1956  Croton setiger Duncan M. Porter 1960-10-12 727 San Mateo Jasper Ridge Biological Preserve, Stanford University; flat area on crest of the ridge (above area G) Comment
  JROH1957  Croton setiger John H. Thomas 1967-11-5 14131 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD38456  Croton setiger Edith A. Purer 1933-8-25 5513 San Mateo Skyline Drive, along the roadside Comment
  CAS-BOT-BC189264  Cryptantha W. R. Dudley 1906-6-9 s.n. San Mateo Tunitas Road Comment
  JROH1360  Cryptantha flaccida John H. Thomas 1975-5-26 17898 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA728109  Cupressus abramsiana subsp. butanoensis John Silba 2004-12-28 B- 422 San Mateo Pescadero County Park, on Butano Ridge, ca. 5 miles east of Dearborn Park Road 442 Comment
  CAS-BOT-BC80786  Cupressus macrocarpa John H. Thomas 1967-5-2 12814 San Mateo Millbrae. Along Skyline Blvd. near Millbrae Ave. Comment
  CAS-BOT-BC287331  Cynara cardunculus J. H. Thomas 1958-10-21 7487 San Mateo Near intersection of Bayshore Highway and Main St, Redwood City, near slough Comment
  JEPS88622  Cynara cardunculus subsp. cardunculus John Thomas Howell 1956-11-14 31961 San Mateo Bayshore Highway just south of Main Street, Redwood City Comment
  JROH5001  Cynodon dactylon John H. Thomas 1967-11-5 14135 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  RSA176667  Cynoglossum grande P. H. Raven 1964-2-16 18744 San Mateo Just south of Lake San Andreas. Comment
  CAS-BOT-BC114454  Cyperus eragrostis John H. Thomas 1960-6-25 8791 San Mateo Redwood City. Along or near a small creek running into Redwood Slough, 7 Comment
  JROH4388  Cyperus eragrostis John H. Thomas 1973-6-15 16831 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM290779  Cyperus eragrostis Lyman Benson 1937-7-8 8446 San Mateo Lake Searsville, Stanford University; Santa Cruz Mt. Range 122 Comment
  CAS-BOT-BC114456  Cyperus eragrostis W. R. Dudley 1908-6-19 s.n. San Mateo Road from Tanforan to Jersey Dairy. Comment
  CAS-BOT-BC114462  Cyperus eragrostis Lewis Samuel Rose 1965-9-20 65107 San Mateo Burlingame, moist open fields. Trousdale Dr & California Dr. 9 Comment
  RSA101027  Cyperus eragrostis G. Oberlander 1949-7-24 318 San Mateo Lower Crystal Springs Lake, San Francisco Watershed Reserve Comment
  CAS-BOT-BC198193  Cytisus scoparius Daniel Cohen 1953-5-5 69 San Mateo Skyline Drive above San Mateo Comment
  JROH5018  Dactylis glomerata John Hunter Thomas 1979-5-22 19576 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC192232  Danthonia californica David D. Keck 1932-5-6 1479 San Mateo Just west of Millbrae Highlands 50 Comment
  HSC81716  Danthonia californica Thomas W. Nelson, Jane P. Nelson 1980-5-3 5133 San Mateo Intersection of Hwy. 92 and Hwy. 280, W of San Mateo. Comment
  JROH5036  Danthonia californica John H. Thomas 1967-6-1 12947 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5037  Danthonia californica John H. Thomas 1968-5-3 14437 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15903  Danthonia californica John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1728 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  UCD60479  Danthonia californica R. Tofsrud 1947-6-14 s.n. San Mateo 1-2 mi. N of Pescadero on road to San Gregorio. Comment
  JROH1904  Datisca glomerata John H. Thomas 1961-6-14 9543 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  RSA176777  Daucus pusillus John H. Thomas 1963-5-20 10137 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  SD30841  Deinandra corymbosa Edith A. Purer 1932-7-18 4025 San Mateo Near Pigeon Point. Comment
  UC134960  Deinandra corymbosa C. F. Baker 1902-10-1 1739 San Mateo Pillar Point Comment
Read comments
Feb 2 2012
  UC1536896  Deinandra corymbosa Gordon H. True Jr. 1936-6-14 501 San Mateo s Salada Beach (meadow in canyon) 365 Comment
  CAS-BOT-BC287371  Deinandra corymbosa A. Kellogg; W. G. W. Harford 1868-6-10 486 San Mateo San Bruno Comment
  JEPS35779  Deinandra corymbosa V. F. Hesse 1964-5-26 3201 San Mateo near coast Whitehouse Creek Road 45 Comment
  UC2046132  Deinandra corymbosa Neal Kramer with Tom Mahony 2015-6-12 2150 San Mateo Redondo Bluffs, Half Moon Bay Comment
  CAS-BOT-BC299201  Deinandra corymbosa subsp. corymbosa James I. McMurphy 1909-10-8 s.n. San Mateo Below Whitehouse Creek east of Franklin Point Comment
  CAS-BOT-BC299228  Deinandra corymbosa subsp. corymbosa David D. Keck 1932-5-11 1765 San Mateo One mile east of San Gregorio 50 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
  JROH682  Delairea odorata Paul Heiple 2008-12-3 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; just inside Sand Hill Rd. fence well south of main gate (just south of abandoned telephone pole) Comment
  JEPS8375  Delphinium Rimo Bacigalupi with L. Constance and C. R. Bell 1951-3-25 3205 San Mateo near San Francisco; Colma Canyon 137 Comment
  CAS-BOT-BC9215  Delphinium californicum Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo San Bruno Mountain, Romanzoffia Ravine 396 Comment
  CAS-BOT-BC9231  Delphinium decorum W. R. Dudley 1900-3-17 s.n. San Mateo South side near the typ of Montaro Mountain Comment
  POM270764  Delphinium hesperium Lyman Benson 1930-5-12 2124 San Mateo Lake Searsville. 152 Comment
  CAS-BOT-BC10292  Delphinium hesperium Elizabeth McClintock 1979-5-28 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC10293  Delphinium hesperium Elizabeth McClintock 1979-5-28 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  RSA18089  Delphinium patens Carl B. Wolf 1929-4-26 3659 San Mateo Woodside. 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-BC116525  Delphinium patens subsp. patens Josephine D. Randall 1908-3-22 s.n. San Mateo Corte de Madera Canon near Alpine Road Comment
  CAS-BOT-BC116529  Delphinium patens subsp. patens W. Dudley 1896-4-4 s.n. San Mateo Near Crystal Springs Comment
  CAS-BOT-BC116533  Delphinium patens subsp. patens P. H. Arnaud 1941-4-21 s.n. San Mateo Hills - back of Hesler farm, Redwood City Comment
  CAS-BOT-BC7939  Delphinium variegatum John Hunter Thomas 1969-4-24 14914 San Mateo near Canada College, Redwood City, near Farm Hill Drive Comment
  JROH3465  Delphinium variegatum subsp. variegatum John Hunter Thomas 1978-4-20 19088 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM148952  Delphinium variegatum subsp. variegatum A. D. E. Elmer 1903-05 s.n. San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC629  Dendromecon rigida subsp. rigida Roxana Stinchfield Ferris 1920-4-26 1954 San Mateo Slopes above Peters Creek. 609 Comment
  CAS-BOT-BC631  Dendromecon rigida subsp. rigida Oliver Norvell 1931-3-2 1396 San Mateo La Honda Grade. Comment
  UCD164702  Deschampsia cespitosa subsp. holciformis Peter Rubtzoff 1976-6-13 8639 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH5048  Deschampsia danthonioides John H. Thomas 1975-5-26 17917 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS18169  Dicentra formosa Rimo Bacigalupi with Dempster, Robbins and Galen Smith 1956-5-15 5648 San Mateo center of Montara Mt. (on summit fire trail) 487 Comment
  CAS-BOT-BC708  Dicentra formosa subsp. formosa Alice Eastwood 1922-6-11 s.n. San Mateo Lake Pilarcitos Comment
  CAS-BOT-BC500927  Dichelostemma capitatum Ned Cahill 1974-4-18 128 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC500930  Dichelostemma capitatum Kim Marcus; David Schooly; Elizabeth McClintock 1975-4-13 s.n. San Mateo Above Hillside Blvd., South San Francisco Comment
  UCSB11443  Dichelostemma capitatum subsp. capitatum Olson, Jim 1962-4-17 San Mateo 10 miles east of Halfmoon Bay on Canada Road 30 Comment
  CAS-BOT-BC150453  Diplacus aurantiacus Ned Cahill 1974-4-30 229 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC150459  Diplacus aurantiacus Robert Robertson 1954-5-1 108 San Mateo 2 miles E. of Pescadero 30 Comment
  JEPS127891  Dipsacus sativus Adam C. Schneider with C. Matt Guilliams and Will Freyman 2014-6-24 301 San Mateo Crystal Springs Reservoir Comment
  JROH1910  Dipsacus sativus John Hunter Thomas 1981-10-25 20773 San Mateo Jasper Ridge Biological Preserve, Stanford University; near main gate Comment
  JROH4197  Dirca occidentalis Miss A. M. Patterson 1906-2-11 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4208  Dirca occidentalis John H. Thomas 1975-4-3 17701 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM274503  Dirca occidentalis Lyman D. Benson 1929-3-2 992 San Mateo East of Lake Searsville Comment
  SEINET3821107 Image available Dirca occidentalis Lewis S. Rose 1933-6-9 33222 San Mateo San Andreas Lake. Comment
  UC872739  Dirca occidentalis Lewis S. Rose 1939-4-12 39060 San Mateo Crystal Springs Lake 152 Comment
  UC961171  Disporum hookeri G. H. Ward 1950-4-8 949 San Mateo 1 mi n of La Honda Comment
  JEPS61835  Disporum smithii Lucille Roush 1928-3-11 San Mateo Butano Creek Comment
  POM196567  Disporum smithii W. R. Dudley 1896-4-17 s.n. San Mateo By road beyond La Honda Summit. Comment
  CAS-BOT-BC195722  Distichlis spicata John H. Thomas 1963-5-20 10150 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NE of Santa Cruz Comment
  CDA20072  Dittrichia graveolens D. Pendleton 2002-10-16 PDR 065871 San Mateo San Francisco Bay Area; Sandhill Rd & Lawler Ranch Rd, W of Hwy 280. 0 Comment
  CDA43448  Dittrichia graveolens John Beall 2015-10-7 PDR# 410 P06280645 San Mateo Pescadero; 6099 Pescadero Creek Road, near Dearborn Park Road. 0 Comment
  UC1019562  Dodecatheon hendersonii H. J. Thompson 1952-3-6 1516 San Mateo 2 mi w Woodside (Kings Mountain Road); , w of Woodside Comment
  JEPS48589  Dodecatheon hendersonii James G. Daly 1934-1-1 208 San Mateo San Gregorio Watershed Santa Cruz Mts., San Gregorio Watershed (branch of La Honda Canyon, sw San Mateo County) Comment
  POM49825  Dodecatheon hendersonii subsp. cruciatum L. R. Abrams 1902-4-5 2311 San Mateo Searrvill Comment
  CAS-BOT-BC159547  Drymocallis glandulosa var. glandulosa John H. Thomas 1961-5-7 s.n. San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC159540  Drymocallis glandulosa var. glandulosa H. A. Lewis 1908-5-7 s.n. San Mateo Near Searsville Comment
  JROH3736  Drymocallis glandulosa var. wrangelliana John H. Thomas 1973-6-15 16842 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC67880  Dryopteris arguta John H. Thomas 1973-6-15 16840 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  JROH26  Dryopteris arguta John H. Thomas 1973-6-15 16840 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH31  Dryopteris arguta Lawrence J. Winship 1974-11-16 21 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  POM23159  Dryopteris arguta C. F. Baker 1902-1-15 320 San Mateo Kings Mountain. West side of King's Mountain, San Mateo Co. CA. Comment
  CAS-BOT-BC67889  Dryopteris arguta W. R. Dudley 1897-1-11 s.n. San Mateo Santa Cruz Peninsula - Lower part of Butano Creek Comment
  CDA42717  Dryopteris arguta L. Masini 1965-9-22 s.n. San Mateo La Honda Creek, north of La Honda. 0 Comment
  RSA11000  Dryopteris arguta C. B. Wolf 1928-3-14 1537 San Mateo La Honda grade in the Santa Cruz Mountains 152 Comment
  SEINET11619627  Dryopteris arguta Unknown 1929-1 7295 San Mateo Kings Mt Comment
  SD12572  Dudleya caespitosa Edith A. Purer 1933-7-27 5383 San Mateo 2.0 miles south of Pigeon Point. Comment
  CAS-BOT-BC428363  Dudleya farinosa L. R. Abrams 1909-8-2 4273 San Mateo Santa Cruz Peninsula. Pebble Beach hotel, Pescadero Comment
  CAS-BOT-BC428365  Dudleya farinosa Carlyn Halde; Elizabeth McClintock 1963-6-23 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC208921  Echinochloa crus-galli Ira L. Wiggins 1980-8-29 22266 San Mateo Bed of San Francisquito Creek, ca 240 m upstream from Pope Street Bridge, Manlo [Menlo] Park Comment
  CDA5626  Echium pininana T. C. Fuller 1967-6-13 15943 San Mateo North side of road to Crystal Springs, 1.2 miles east of Highway 1 at Half Moon Bay. 0 Comment
  CDA5627  Echium pininana T. C. Fuller 1967-8-23 16296 San Mateo North side of road to Crystal Springs, 1.2 miles east of Highway 1 at Half Moon Bay. 0 Comment
  CDA5628  Echium pininana Gordon Leppig 2000-5-24 1384 San Mateo Highway 1 between Montara and Linda Mar. 0 Comment
Read comments
Sep 13 2011
  JROH4409  Eleocharis macrostachya John Hunter Thomas 1987-5-19 24301 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5115  Elymus X hansenii D. E. Breedlove 1971-5-31 19368 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake 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
  POM352566  Elymus californicus P. H. Raven 1967-6-25 21418 San Mateo Pescadero Road 2.8 miles SW of Alpine Road. Comment
  CAS-BOT-BC203679  Elymus glaucus subsp. glaucus Walter Knight; Irja Knight 1965-5-15 s.n. San Mateo San Bruno Mountain. Bitter Cherry Ravine Comment
  CAS-BOT-BC235204  Elymus multisetus Phillip C. Wheeler 1965-6-20 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  CAS-BOT-BC235206  Elymus multisetus Ned Cahill 1974-5-30 316 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC235210  Elymus multisetus John H. Thomas 1961-5-14 9384 B San Mateo Just north of dam on San Mateo Creek 121 Comment
  JROH3041  Epilobium brachycarpum John H. Thomas 1971-8-7 16019 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA72120  Epilobium brachycarpum F. W. Peirson 1925-9-13 6428 San Mateo Rockaway beach Comment
  SEINET6635579 Image available Epilobium brachycarpum Lewis S. Rose 1932-1 32600 San Mateo Salada Beach Comment
  UC1537613  Epilobium brachycarpum Gordon H. True 1937-7-23 804 San Mateo along Skyline-Salada Beach Rd 60 Comment
  UC873502  Epilobium brachycarpum Roxana Stinchfield 1915-10-14 261 San Mateo Cedro Villa Stanford University 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
  UC306521  Epilobium ciliatum subsp. watsonii A. D. E. Elmer July, 1903 4962 San Mateo Crystal Springs Lake Comment
  JROH3069  Epilobium densiflorum H. J. Dengler 1972-8-21 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH58  Equisetum arvense John Hunter Thomas 1982-11-6 21194 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC57602  Equisetum telmateia Ira L. Wiggins 1925-4-1 1669 San Mateo First bridge across small creek on Kings Mountain Road above Woodside Comment
  CAS-BOT-BC57603  Equisetum telmateia Ira L. Wiggins 1931-3-15 5103 San Mateo between Skyline Boulevard and La Honda Comment
  CAS-BOT-BC57607  Equisetum telmateia George Oberlander 1950-4-2 568 San Mateo south boundary Comment
  JROH67  Equisetum telmateia subsp. braunii Lawrence J. Winship 1974-11-2 4 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH5925  Eragrostis curvula John Rawlings 2009-5-1 1048 San Mateo Sand Hill Road at entrance to Horse Park at Woodside, on the Menlo Park-Woodside border, San Mateo Co. Comment
  JROH5145  Eragrostis mexicana subsp. virescens John Rawlings 2009-7-23 1027 San Mateo Jasper Ridge Biological Preserve, Stanford University. In the dry creek bed of San Francisquito Creek near the Dennis Martin site 71 Comment
  CAS-BOT-BC299892  Erechtites glomeratus John H. Thomas 1961-5-13 9340 San Mateo Franklin Point Comment
  CAS-BOT-BC291243  Erechtites minimus Elizabeth McClintock; Walter Knight; Irja Knight 1963-9-2 s.n. San Mateo San Bruno Mountain. Power Line Ridge Comment
  CAS-BOT-BC286883  Ericameria ericoides Elizabeth McClintock 1966-9-29 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  UCSC007741  Ericameria ericoides Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  SD40117  Ericameria ericoides subsp. ericoides Edith A. Purer 1933-7-27 5375 San Mateo Two miles south of Pigeon Point. Comment
  CHSC25996  Ericameria parishii James Henrickson 1969-10-19 4189 San Mateo 6 mi. NNW of Descanso on Boulder Creek Rd. Comment
Read comments
Dec 11 2013
  CAS-BOT-BC300610  Erigeron foliosus var. franciscensis C. F. Leitholt 1893-7-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Searsville Comment
  CAS-BOT-BC295083  Erigeron glaucus Robert Robertson 1954-5-1 123 San Mateo Pebble Beach 12 Comment
  CAS-BOT-BC295090  Erigeron glaucus Ernest C. Twisselmann 1955-11-19 2496 San Mateo Crocker Estate, Diamont Heights 152 Comment
  SEINET11859443  Erigeron glaucus M. T. Doutt 1931-3-14 239 San Mateo along coast S of San Francisco Comment
  JROH692  Erigeron karvinskianus Herbert Dengler 1965-6-25 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; S.F. Cr. about 2' above water - N.W. of Searsville Rocks - (about 200' below Dennis Martin mill site of ca. 1849) Comment
  CAS-BOT-BC216126  Eriodictyon californicum A. D. E. Elmer 1903-4-1 4801 San Mateo Lake San Andreas Comment
  CDA34113  Eriodictyon californicum D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .153 San Mateo Santa Cruz Mountains; Along Route 9, ~5 km E of Big Basin Redwoods. Comment
  JROH2724  Eriodictyon californicum John H. Thomas 1973-5-5 16767 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC24063  Eriodictyon californicum J. Burtt Davy 1893-6-17 720 San Mateo Belmont Comment
  CAS-BOT-BC248711  Eriogonum arborescens Elizabeth McClintock; Paul Reeberg 1988-9-1 s.n. San Mateo San Bruno Mountains. Above area where Caltrans had planted this species along Bayshore Boulevard 91 Comment
  CAS-BOT-BC250544  Eriogonum gracile John H. Thomas 1969-10-19 15478 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC250546  Eriogonum gracile L. S. Rose 1931-5-15 s.n. San Mateo Emerald Lake in hills near Redwood City Comment
  RSA17962  Eriogonum gracile var. gracile Carl B. Wolf 1927-8-15 718 San Mateo Jasper Ridge near Searsville Lake Comment
  SBBG1532  Eriogonum latifolium H. and M. Dearing 1951-8-17 6944 San Mateo Pigeon Point on Hwy 1 N of Santa Cruz Comment
  SD214602  Eriogonum latifolium Edith A. Purer 1933-7-27 5379 San Mateo Sand dunes, two miles south of Pigeon Point Comment
  CAS-BOT-BC251981  Eriogonum latifolium Elsie M. Zeile 1921-7-30 s.n. San Mateo Salada Beach (slopes nr. road) Comment
  CAS-BOT-BC264781  Eriogonum luteolum L. R. Abrams 1902-9-21 2988 San Mateo Crystal Lake Comment
  SEINET5330457  Eriogonum luteolum J. L. Reveal, John H. Thomas 1975-7-31 3911 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto, on oak covered hillsides south of San Francisquito Creek, on a low, serpentine ridge 183 Comment
  JROH3234  Eriogonum luteolum var. luteolum John Hunter Thomas 1981-7-24 20728 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3225  Eriogonum luteolum var. luteolum Duncan M. Porter 1960-10-12 725 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow at crest of Ridge above Webb Ranch (area H). Comment
  SBBG39490  Eriogonum nudum var. auriculatum L. S. Rose 1970-7-26 70080 San Mateo Hillsborough, Black Mtn, Skyline Blvd 121 Comment
  SEINET11938128  Eriogonum nudum var. auriculatum E. A. Purer 1933-1 5401 San Mateo Along the Bayshore Highway, near Redwood City Comment
  SEINET11938130  Eriogonum nudum var. auriculatum Unknown 1932-1 9110 San Mateo Btw road and Sring Valley Lakes Comment
  CAS-BOT-BC304088  Eriophyllum confertiflorum Ned Cahill 1974-5-13 267 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City Comment
  RSA171029  Eriophyllum confertiflorum R. F. Thorne, Percy C. Everett 1963-6-9 32229 San Mateo Top of San Bruno Mountain 335 Comment
  JROH709  Eriophyllum confertiflorum var. confertiflorum John Hunter Thomas 1980-6-5 19996 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC301255  Eriophyllum lanatum var. arachnoideum L. R. A. 1902-5-17 2472 San Mateo Kings Mountain Comment
  CAS-BOT-BC301259  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs Reservoir Comment
  RSA116767  Eriophyllum lanatum var. arachnoideum W. R. Dudley 1906-6-12 s.n. San Mateo W Union Gulch, back of Winery; Santa Cruz Mountain Peninsula Comment
  SD40140  Eriophyllum staechadifolium Edith A. Purer 1933-7-27 5395 San Mateo Partially stabilized san dunes, two miles south of Pigeon Point. Comment
  POM358131  Eriophyllum staechadifolium L. S. Rose 1938-8-18 38233 San Mateo Skyline Blvd., 3 miles south of San Francisco County line. 61 Comment
  RSA302653  Eriophyllum staechadifolium Jim Shevock 1970-11-25 551 San Mateo Along Hwy 1 9 Comment
  SEINET11850785  Eriophyllum staechadifolium var. artemisiaefolium E. H. Graham 1931-1 6930 San Mateo Ano Nuevo Pt., S of San Francisco Comment
  OBI49170  Eriophyllum staechadifolium var. artemisiifolium Lewis S. Rose 1938-8-18 38233 San Mateo Skyline Blvd, 3 mi S of San Francisco Co. line 61 Comment
  JROH2605  Erodium cicutarium John H. Thomas 1977-4-19 18536 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA391840  Erodium cicutarium Glenn A. Gorelick 1967-4-4 s.n. San Mateo San Bruno Mts; overlooking Daly City near San Francisco. Comment
  UC174154  Eryngium armatum Katharine Brandegee June, 1905 San Mateo Moss Beach Comment
  UC619415  Eryngium armatum Wilhelm N. Suksdorf 1913-6-23 278 San Mateo Crystal Springs Lake Comment
  JROH243  Eryngium jepsonii John Hunter Thomas 1978-7-4 19254 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC54836  Erysimum franciscanum G. B. Rossbach 1955-3-26 573 San Mateo Inner dunes back of sea bluff ca. 1 mile north of Sharp Park (Salada). Comment
  CAS-BOT-BC54855  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-4-2 907 a fl. 907b fr. San Mateo Above road, north end of Sawyer Ridge. Between San Andreas Lake and San Mateo Creek. 289 Comment
  CAS-BOT-BC54864  Erysimum franciscanum G. B. Rossbach 1940-4-23 925 San Mateo About 1 mile inland, Montara Mountains, south of San Pedro Valley and northwest of Peak Mountain. 121 Comment
  CAS-BOT-BC54876  Erysimum franciscanum C. F. Baker 1902-3-22 342 San Mateo Crystal Spring Lakes. Comment
  LA204415  Erysimum franciscanum H. E. Parks; S. T. Parks 1930-3-10 401 San Mateo Spring Valley Lakes Comment
  PGM1716  Erysimum franciscanum Helen Lind 1977-3-12 San Mateo Devils Slide Area Highway 1 Devils, Highway 1 in Devil's Slide Area Comment
  RSA101842B  Erysimum franciscanum G. B. Rossbach 1939-4-2 908 -b San Mateo Just above and west of South end of San andreas Lake 213 Comment
  RSA101862  Erysimum franciscanum G. B. Rossbach 1938-3-15 800 San Mateo East side of Crystal springs Lake 107 Comment
  RSA101865  Erysimum franciscanum G. B. Rossbach 1939-6-4 915 San Mateo West slope Buriburi Ridge, between Crystal Springs and San Andreas Lakes 122 Comment
  RSA101912  Erysimum franciscanum G. B. Rossbach 1939-5-12 900 San Mateo 2.5 miles N of Montara near Devil s Slide Comment
  RSA102125  Erysimum franciscanum G. B. Rossbach 1955-3-26 577 San Mateo Near radio tower, crest of San Bruno Mountain 401 Comment
  UC1301015  Erysimum franciscanum Helen K. Sharsmith 1963-2-16 5144 San Mateo summit San Francisco Bay Region, San Bruno Mountain 396 Comment
  UC534993  Erysimum franciscanum H. E. and S. T. Parks 1930-3-10 401 San Mateo Spring Valley Lakes 152 Comment
  CHSC22332  Erythranthe guttata Robert A. Schlising; Glenn Keator 1962-2-3 2044 San Mateo Coast Ranges. Along Highway 1, 3.9 mi N of jct with Bonnie Doon Road. Comment
  JROH5683  Erythranthe microphylla John Rawlings 2015-3-15 1357 San Mateo Jasper Ridge Biological Preserve, Stanford University; rocky serpentine north side of ridge. 176 Comment
  JROH3096  Eschscholzia californica John H. Thomas 1969-4-12 14881 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  RSA15341  Eschscholzia californica subsp. californica Carl B. Wolf 1927-1-29 152 San Mateo Near coast between Pescadero and Pebble Beach Comment
  CAS-BOT-BC202738  Euonymus occidentalis C. B. Wolf 1931-8-21 2333 San Mateo 1/2 mile above east base of La Honda Grade, Santa Cruz Mts. 243 Comment
  JROH1804  Euonymus occidentalis var. occidentalis John Rawlings, Paul Heiple 2007-4-11 1026 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 10 meters inside Preserve boundary near its SW corner 115 Comment
  UC1071566  Euonymus occidentalis var. occidentalis A. E. Wieslander 1925-9-25 1 San Mateo Santa Cruz Quad., Pescadero Creek Comment
  CDA19888  Euphorbia oblongata J. Beall 2002-6-3 PDR P 120145 San Mateo San Francisco Bay Area; Pope at San Francisquito Creek. 0 Comment
  JROH5158  Festuca arundinacea John Hunter Thomas 1985-5-21 23664 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bridge 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
  CAS-BOT-BC278287  Festuca californica Roxana S. Ferris 1920-4-23 1952 San Mateo Santa Cruz Mountain Peninsula. Bridge on Alpine Road along Corte Madera Cr. 365 Comment
  CAS-BOT-BC278477  Festuca idahoensis L. R. A. 1902-5-11 2450 San Mateo Crystal Springs Comment
  POM193633  Festuca idahoensis Le Roy Abrams 1902-5-11 2450 San Mateo Crystal Springs. Comment
  JROH5490  Festuca microstachys Stephen N. Turitzin 1975-5-7 4 San Mateo Jasper Ridge Biological Preserve, Stanford University 190 Comment
  JROH5769  Festuca microstachys Herb Dengler 1957-4-21 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Top of dome. Comment
  CAS-BOT-BC278864  Festuca occidentalis W. R. Dudley 1895-6-6 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Creek near Iverson's Place Comment
  JROH5285  Festuca perennis John Hunter Thomas 1981-5-25 20635 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5934  Festuca perennis J. Gaither 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Whiskey Hill Gate Entrance Comment
  UC429787  Festuca roemeri LeRoy Abrams 1902-5-11 2450 San Mateo Crystal Springs Comment
  JROH2973  Ficus carica John H. Thomas 1967-6-1 12982 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC77693  Ficus carica Elizabeth McClintock; Paul Reeberg 1988-5-12 s.n. San Mateo Juncus Ravine Comment
  CDA34004  Fragaria californica D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .151 San Mateo Santa Cruz Mountains.; Skyline Blvd, ~ 5 miles W of Los Altos. Comment
  CAS-BOT-BC52679  Frangula californica subsp. californica A. D. E. Elmer 1903-7-1 4772 San Mateo Pilarcitos Stone Dam Comment
  JROH3535  Frangula californica subsp. californica John H. Thomas 1961-6-14 9540 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC53596  Frangula californica subsp. tomentella Ned Cahill 1974-4-23 157 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH3570  Frangula californica subsp. tomentella D. E. Breedlove 1971-5-31 19345 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  UC18511  Frangula purshiana J. Burtt Davy 1895-4-21 1064 San Mateo Pilarcitos Creek Comment
Read comments
Jul 18 2008
  SD38247  Frankenia salina Edith A. Purer 1933-8-13 5415 San Mateo Near bay, Belmont. Comment
  UC1191594  Frankenia salina Malcolm A. Nobs and S. Galen Smith 1949-8-26 1599 San Mateo marshes at mouth Pescadero Creek Comment
  CAS-BOT-BC223553  Fraxinus latifolia A. D. E. Elmer 1903-7-1 4615 San Mateo San Mateo Creek Comment
  POM130871  Fraxinus latifolia C. F. Baker 1903-6-30 3355 San Mateo Crystal Springs Lake Comment
  UC1140922  Fremontodendron californicum subsp. californicum W. R. Dudley 1897-12-29 San Mateo Santa Cruz Peninsula, Butano Creek Butano Creek; Santa Cruz Peninsula, Butano Creek Comment
  CAS-BOT-BC130122  Fritillaria affinis L. R. A. 1902-4-13 2339 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC130132  Fritillaria affinis Roxana S. Ferris 1921-3-21 2121 San Mateo [Ano] Ano Nuevo Pt. Comment
  JROH4684  Fritillaria affinis John H. Thomas 1971-5-30 15973 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM273485  Fritillaria affinis Lyman Benson 1930-4-27 2099 San Mateo Stanford University 122 Comment
  RSA371591  Fritillaria affinis Thomas S. Elias 1987-4-10 10336 San Mateo Along Canyon Road, north of Butano State Park Comment
  SDSU20660  Fritillaria liliacea Sean Ryan 2011-3-19 77 San Mateo On E side of Serpentine Loop trail, 175 yds N of the service road entering from Robertson Way. Edgewood County Park. 209 Comment
  RSA15248  Fritillaria liliacea Carl B. Wolf 1927-2-19 s.n. San Mateo Skyline Blvd. above Spring Valley Lakes, near where Belmont Road crosses Comment
  SD39122  Fritillaria liliacea McCallum, Marie Cummings 1933-4-12 2148 San Mateo Open hills near Skyline Boulevard, above La Honda. Comment
  SEINET12044985  Fritillaria liliacea H. E. Parks, Parks, S. T. 1930-1 400 San Mateo Spring Valley Lakes 152 Comment
  RSA0031337  Fumaria Peter Rubtzoff, B. Anderson 1988-4-12 9900 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
  UCD78148  Fumaria capreolata Robert E. Preston 2008-4-1 2600 San Mateo Lower Crystal Springs Reservoir, at jct Hwy 92 and Hwy 35 92 Comment
  JEPS21692  Galium murale R. S. Ferris, W. R. Ernst and John H. Thomas 1958-5-10 7138 San Mateo about 5 mi sw Palo Alto; Jasper Ridge 152 Comment
  UCD121881  Galium parisiense John Thomas Howell 1978-7-18 53188 San Mateo McClellan residence, 1356 Bernal Ave., Burlingame. Comment
  OBI9909  Galium triflorum L. T. Dempster 1956-5-15 1001 San Mateo Lake Pilarcitos Comment
  SEINET10902556  Galium triflorum Mary Susan Taylor 1978-8-30 Taylor 1857 San Mateo Comment
  JROH5574  Gamochaeta ustulata John H. Thomas 1962-5-31 9896 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of the ridge Comment
  RSA502345  Gamochaeta ustulata D. W. Taylor 1988-4-8 9506 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest. 238 Comment
  CAS-BOT-BC194560  Garrya elliptica Lewis S. Rose 1962-2-5 62001 San Mateo San Andreas Lake 152 Comment
  CAS-BOT-BC194567  Garrya elliptica W. R. Dudley 1895-2-10 s.n. San Mateo San Mateo Ravine by Road above Pt. of Rocks Comment
  UC306760  Garrya elliptica A. D. E. Elmer Feb 1903 4469 San Mateo Portola Comment
  JROH5185  Gastridium phleoides John H. Thomas 1973-6-10 16809 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA129640  Gastridium phleoides N. K. Carlson 1935-6-20 73 San Mateo Between head of Oil and Slate Creek and ridge. Comment
  SJSU15819  Gastridium phleoides John Rawlings, Ken Hickman 2016-7-21 1907 San Mateo Serpentine seep area (Fountain thistle seep) up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  CAS-BOT-BC219141  Genista monspessulana T. C. Fuller 1960-4-20 4086 San Mateo roadside, Page Mill Road, 0.5 mi above (SW) Moody Road, Los Altos Hills Comment
  JROH2014  Genista monspessulana John Hunter Thomas 1983-4-14 21407 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  UCR121492  Geranium dissectum George K. Helmkamp, E. A. Helmkamp 1999-6-28 4956 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-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
  JROH2625  Geranium molle John H. Thomas 1967-3-26 12422 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC23939  Geranium retrorsum Mary Katherine Wicksten 1971-7-22 187 San Mateo Huddart Park, near park entrance Comment
  JROH3151  Gilia achilleifolia subsp. multicaulis John H. Thomas 1967-4-28 12722 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3159  Gilia achilleifolia subsp. multicaulis John Hunter Thomas 1987-4-30 24221 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam Comment
  RSA185797  Gilia capitata subsp. abrotanifolia Josephine Randall 1908-5-1 s.n. San Mateo Corte de Madera Canon near Alpine RoadSanta Cruz Peninsula Comment
  JROH5682  Gilia clivorum John Rawlings 2015-3-15 1354 San Mateo Jasper Ridge Biological Preserve, Stanford University; sepentine prairie on ridge top south of a shallow drainage 195 Comment
  SJSU15952  Gilia clivorum John Rawlings, Ken Hickman 2016-5-26 1829 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; 25 yards down-slope from the San Francisco Watershed boundary fence 122 Comment
  SEINET3869111  Ginkgo biloba Bill Popin 1988-10-9 44 San Mateo Central Park.; 0 Comment
  RSA176726  Glycyrrhiza lepidota John H. Thomas 1962-7-15 9923 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below dam. Comment
  POM202446  Gnaphalium californicum W. R. Dudley 1895-6-14 s.n. San Mateo Top of ridge near rocks, Searsville Comment
  CDA6003  Gnaphalium canescens subsp. beneolens A. C. Browne 1950-8-12 San Mateo Alpine Creek. 0 Comment
  SEINET11849363  Gnaphalium chilense L. K. Henry 1956-1 s.n. San Mateo along Pacific Ocean at Pigeon Point Lighthouse on Rt. 1 Comment
  RSA217983  Gnaphalium luteoalbum Elizabeth McClintock 1965-6-13 s.n. San Mateo Colma Canyon. Plants of San Bruno Mountain. Comment
  RSA249493  Gnaphalium luteoalbum John F. Emmel 1971-9-25 390 San Mateo Along Radio Road, at 1000 ft. contour, NW end of San Bruno Mts., 0.3 air mile NW of 1314 ft summit. 305 Comment
  SEINET3386993 Image available Gnaphalium ramosissimum Lewis S. Rose 1935-8-13 35568 San Mateo Salada, Brushy coastal hills. 30 Comment
  POM359110  Grindelia D. D. Keck 1932-5-25 1783 San Mateo Hills two miles W of Belmont Comment
  JROH812  Grindelia camporum H. J. Dengler 1972-10-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; above kingfisher nesting site Comment
  CAS-BOT-BC304513  Grindelia hirsutula John Thomas Howell 1964-12-6 41032 San Mateo Vacant lot near S. P. R. R. station, Millbrae Comment
  CAS-BOT-BC304515  Grindelia hirsutula Walter Knight 1963-11-8 389 San Mateo San Bruno Mt. Along Bayshore highway north of So. San Francisco Comment
  CAS-BOT-BC304530  Grindelia hirsutula L. R. A. 1909-8-2 4249 San Mateo Pebble Beach, Pescadero Comment
  CAS-BOT-BC304537  Grindelia hirsutula J. H. Thomas 1954-5-28 4243 San Mateo East facing slopes of San Bruno Mountain, just north of South San Francisco 91 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
  JEPS20069  Grindelia hirsutula Peter H. Raven 1957-9-1 11297 San Mateo at junction of State Highway 1 and Tunitas Creek Comment
  POM55186  Grindelia hirsutula A. D. E. Elmer 1903-06 4267 San Mateo Crystal Springs Lake. Comment
  UC32136  Grindelia hirsutula J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Pilarcitos Canyon; Pilarcitos Lake, Pilarcitos Canyon Comment
  UC520425  Grindelia hirsutula J. A. Moore and J. A. Steyermark 1931-8-7 3684 San Mateo South San Francisco 0 Comment
  UC897085  Grindelia hirsutula J. T. Howell 1932-10-21 San Mateo Pigeon Point Comment
  JROH820  Grindelia hirsutula John Hunter Thomas 1980-5-8 19941 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0110999  Grindelia stricta var. angustifolia E. A. Purer 1933-8-26 5525 San Mateo Along highway. [No further location information.] Comment
  RSA0116908  Grindelia stricta var. angustifolia Lyman Benson 1945-7-29 11839 San Mateo Bayshore Highway at San Carlos. 3 Comment
  POM209880  Grindelia stricta var. platyphylla D. D. Keck 1934-7-7 2943 San Mateo Pigeon Point. Comment
  POM359102  Grindelia stricta var. platyphylla E. A. Purer 1933-7-27 18776 San Mateo Two miles south of Pigeon Point Comment
  RSA18345  Grindelia stricta var. platyphylla C. B. Wolf 1927-1-29 473 San Mateo Pescadero Comment
  UCR240778A  Grindelia stricta var. platyphylla T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3518 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  CAS-BOT-BC309543  Helenium puberulum A. D. E. Elmer 1903-7-1 4972 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC309545  Helenium puberulum John Thomas Howell 1939-6-16 14744 San Mateo Crystal Springs Lake Comment
  JROH834  Helenium puberulum Richard L. Garber 1971-7-13 75 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH836  Helenium puberulum John H. Thomas 1974-6-27 17449 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing, below Searsville Dam Comment
  JROH838  Helenium puberulum John Hunter Thomas 1977-6-16 18744 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH847  Helenium puberulum John Hunter Thomas 1992-6-8 25369 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
  UC407000  Helenium puberulum W. R. Dudley 1895-6-14 San Mateo near Searsville; San Francisquito Creek Comment
  CAS-BOT-BC309534  Helenium puberulum W. R. Dudley 1895-9-15 s.n. San Mateo Santa Cruz Peninsula. El Corte Madera road Comment
  CAS-BOT-BC309536  Helenium puberulum Josephine D. Randall 1907-6-12 72 San Mateo Santa Cruz Peninsula. Portola Road near Stanford University Comment
  JROH831  Helenium puberulum John H. Thomas 1964-11-29 10548 San Mateo Jasper Ridge Biological Preserve, Stanford University; eastern arm of Searsville Lake, just above high water mark Comment
  JROH837  Helenium puberulum John H. Thomas 1976-10-16 18402 San Mateo Jasper Ridge Biological Preserve, Stanford University; now dry delta in Searsville Lake at the mouth of Corte de Madera Creek Comment
  JROH853  Helianthella californica var. californica John Hunter Thomas 1978-4-20 19081 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC224051  Helianthemum scoparium Fred Hemphill 1973-4-22 832 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  JROH1835  Helianthemum scoparium John H. Thomas 1968-5-22 14453 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC305928  Helminthotheca echioides Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  JROH1174  Helminthotheca echioides John Hunter Thomas 1982-7-22 21086 San Mateo Jasper Ridge Biological Preserve, Stanford University; near main gate on Sand Hill Rd. Comment
  CAS-BOT-BC453466  Hemitomes congestum R. S. Ferris 1923-5-26 3787 San Mateo Chris Iverson Trail, Butano Ridge Comment
  CAS-BOT-BC306177  Hemizonia congesta subsp. congesta J. McMurphy 1909-6-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Summit of ridge between Colma & San Bruno Comment
  CAS-BOT-BC314909  Hemizonia congesta subsp. luzulifolia Ned Cahill 1974-4-30 224 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City Comment
  CAS-BOT-BC314924  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1941-10-24 41470 San Mateo Belmont 6 Comment
  CAS-BOT-BC314936  Hemizonia congesta subsp. luzulifolia C. F. Baker 1903-6-30 3350 San Mateo Crystal Springs Comment
  CAS-BOT-BC314949  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1914-7-15 5140 San Mateo Crystal Springs Comment
  SBBG39532  Hemizonia congesta subsp. luzulifolia L. S. Rose 1970-7-26 San Mateo Hillsborough, Black Mtn, Skyline Blvd 121 Comment
  UC32738  Hemizonia congesta subsp. luzulifolia J. Burtt Davy 1893-6-17 784 San Mateo Belmont Comment
  UCSB57493  Hemizonia congesta subsp. luzulifolia Abrams, L. 1914-7-15 San Mateo Crystal Springs Comment
  CAS-BOT-BC313454  Hemizonia congesta subsp. luzulifolia J. McMurphy 1909-8-29 s.n. San Mateo Summit between Crystal Springs Lake and Belmont, Santa Cruz Peninsula Comment
  CAS-BOT-BC314926  Hemizonia congesta subsp. luzulifolia W. R. Dudley 1894-4-21 s.n. San Mateo Crystal Springs Comment
  CAS-BOT-BC314934  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1907-8-6 s.n. San Mateo Low ground east of causeway, Crystal Springs Lakes Comment
  CAS-BOT-BC314943  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-13 10225 San Mateo Near Crystal Springs Lake Comment
  POM296654B  Hemizonia luzulifolia L. S. Rose 1941-10-24 41470 San Mateo Belmont. 6 Comment
  POM360311  Hemizonia luzulifolia L. S. Rose 1964-9-5 64070 San Mateo Emerald Lake, W of Redwood City. 244 Comment
  CAS-BOT-BC310243  Hesperevax sparsiflora var. sparsiflora Margaret A. Barry 1937-5-15 126 San Mateo Coal Mine Ridge Comment
  JROH884  Hesperevax sparsiflora var. sparsiflora John H. Thomas 1970-1-1 15493 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH888  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1980-5-8 19950 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH891  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1981-5-8 20549 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH894  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1982-4-28 20874 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB24049  Hesperocyparis abramsiana Dutton, H. 1949-9-19 San Mateo Common corners of sections 11 & 12 and 13 & 14 Range 4 West, on the north bank of the North Fork of Butano Creek Comment
  UC725506  Hesperolinon congestum A. A. Heller 1907-5-28 8572 San Mateo near Crystal Springs Comment
  UC311178  Hesperomecon linearis A. D. E. Elmer 1903-6-1 4594 San Mateo San Bruno Hills Comment
  CAS-BOT-BC148462  Heteromeles arbutifolia Ned Cahill 1974-4-19 145 San Mateo Chaparral near the intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC148471  Heteromeles arbutifolia Fred Hemphill 1973-4-15 681 San Mateo San Carlos, chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  RSA681422  Heteromeles arbutifolia Annuschka Deb 1989-1-27 14 San Mateo Woodside. Comment
  JEPS125948  Heterotheca sessiliflora subsp. bolanderi D. W. Taylor 2000-7-20 17537 San Mateo Montara Mountain, on Montara State Beach, along dirt road 1 mile W from North Peak. Comment
  CAS-BOT-BC310772  Heterotheca sessiliflora subsp. echioides Margaret A. Barry 1937-9-24 217 San Mateo Coal Mine Ridge Comment
  JROH3885  Heuchera micrantha John H. Thomas 1970-5-16 15628 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC420892  Heuchera micrantha var. diversifolia George Oberlander 1950-5-28 955 San Mateo Pilarcitos Canyon Comment
  UC858020  Heuchera micrantha var. erubescens Lewis S. Rose 1939-6-16 39280 San Mateo Kings Mountain 670 Comment
  CAS-BOT-BC420900  Heuchera micrantha var. erubescens Josephine D. Randall 1907-7-7 s.n. San Mateo Kings Mt Comment
  RSA0063102  Heuchera micrantha var. hartwegii G. Oberlander 1950-5-28 955 San Mateo Pilarcitos Canyon. San Francisco Watershed Reserve. Comment
  RSA0063142  Heuchera micrantha var. hartwegii D. D. Keck 1932-6-1 1794 San Mateo Above Woodside on La Honda Rd. E slope of Santa Cruz Mtns. Comment
  CHSC56591  Heuchera micrantha var. pacifica Steven Triano 1988-5-24 167 San Mateo Ca 0.1 mi w of Old La Honda Road near Martin Creek and 0.4 air miles e of SkyLonda. 381 Comment
  UCR141450  Heuchera pilosissima June Latting 1975-6-8 s.n. San Mateo Santa Cruz Mtns., Pescasero Road, 8 miles east of highway Calif. Hwy 1 122 Comment
  CAS-BOT-BC319633  Hieracium albiflorum George Oberlander 1950-5-6 997 San Mateo Sawyer Ridge, San Francisco Watershed Reserve Comment
  CAS-BOT-BC55444  Hirschfeldia incana George Oberlander 1949-7-24 290 San Mateo San Francisco Watershed. Grassland about San Andreas Lake. 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
  UCD84964  Holcus lanatus Josephine D. Randall 1907-6-29 159 San Mateo Portola Valley. Comment
  CDA2181  Holcus lanatus C. M. Sill 1960-1-15 San Mateo Plath Nursery, Pescadero. 0 Comment
  RSA121223  Holcus lanatus G. E. Sindel 1935-8-14 332 San Mateo Half mile N of Purisama Creek. 320 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
  JROH3698  Holodiscus discolor var. discolor John Hunter Thomas 1987-5-19 24289 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near lake Comment
  CAS-BOT-BC150063  Holodiscus discolor var. discolor Elizabeth McClintock 1965-3-28 s.n. San Mateo In Trillium Gulch Comment
  CAS-BOT-BC150065  Holodiscus discolor var. discolor Walter Knight 1964-9-14 839 San Mateo Ridge between Peak Mt. and highway 1 Comment
  POM190456  Hordeum brachyantherum D. D. Keck 1932-5-6 1465 San Mateo Belmont. Comment
  POM198993  Hordeum brachyantherum A. D. E. Elmer 1903-06 4857 San Mateo Crystal Springs Lake. Comment
  RSA181232  Hordeum brachyantherum John H. Thomas 1963-5-20 10111 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  RSA6305  Hordeum brachyantherum D. D. Keck 1965-5-6 1465 San Mateo Belmont Comment
  SEINET7297786 Image available Hordeum brachyantherum David D. Keck 1932-1 1463 San Mateo Belmont; Common in fields near the salt marshes of San Francisco Bay. Comment
  CAS-BOT-BC284684  Hordeum brachyantherum subsp. brachyantherum George Oberlander 1950-4-16 718 San Mateo San Francisco Watershed Reserve. North of San Andreas Lake Comment
  SEINET10610448  Hordeum brachyantherum subsp. brachyantherum Edwin B. Copel 1903-6-10 Copeland 3304 San Mateo Montara Point. Comment
  CAS-BOT-BC289538  Hordeum brachyantherum subsp. californicum Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Crocker Hills, San Bruno Mountain Comment
  JROH5230  Hordeum brachyantherum subsp. californicum John Hunter Thomas 1981-5-19 20607 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285047  Hordeum depressum Le Roy Abrams 1901-5-1 1651 San Mateo Cooley's Landing Comment
  SEINET6851597  Hordeum geniculatum Robert A. Evers, Clara V. Evers 1975-8-24 115025 -B San Mateo Trailer Villa, Redwood City. Comment
  CAS-BOT-BC285146  Hordeum marinum subsp. gussoneanum Elizabeth McClintock; Paul Reeberg 1989-4-10 s.n. San Mateo San Bruno Mountains. PG&E Marsh 7 Comment
  SEINET10831781 Image available Hordeum murinum Delzie Demaree 1932-3-27 Demaree 8957 San Mateo Moist bottoms. La Honda Comment
  UC1537225  Hordeum murinum subsp. leporinum Gordon H. True Jr. 1937-4-3 620 San Mateo Salada Beach Road 182 Comment
  CAS-BOT-BC271357  Hordeum vulgare Mary Helen Kelson 1956-4-27 150 San Mateo One mile from beach at Pescadero 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
  RSA523364  Horkelia californica G. H. True 1936-6-14 508 San Mateo Canyon S of Salada Beach. 305 Comment
  UC1128147  Horkelia californica H. S. Yates 1935-2-3 5008 San Mateo 1/2 mi se Pigeon Pt.; Santa Cruz quad. 30 Comment
  CAS-BOT-BC536150  Horkelia californica Alice Eastwood 1915-6-13 4711 San Mateo Granada Comment
  RSA184912  Horkelia californica L. S. Rose 1966-8-20 66086 San Mateo San Bruno Mtn, Head of Colma Canyon. 206 Comment
  UCD113404  Horkelia californica var. californica Collector unknown 1925-6-15 1680 San Mateo Pescadero-Santa Cruz Rd. Comment
  SJSU16037  Hosackia gracilis Toni Corelli, John Rawlings 2016-4-29 1766 San Mateo Cascade Field along Atkinson Bluff Trail, north of Cascade Cr. Trail, in Ano Nuevo State Park 11 Comment
  UC964738  Hydrocotyle moschata W. J. Bevan 1951-5-4 San Mateo 24 Belford Way, San Mateo Comment
  UCR253352  Hydrocotyle moschata A. C. Sanders 2014-8-3 41241 San Mateo San Francisco Bay, South San Francisco, Utah Ave. near Harbor Way, north of S.F. Intl. Airport 4 Comment
  CAS-BOT-BC400965  Hypericum anagalloides Elizabeth McClintock; Philip Wheeler 1967-6-11 s.n. San Mateo San Bruno Mountains. North facing slope to south of new Guadalupe Parkway just before it meets Radio Road Comment
  JROH2770  Hypericum calycinum Toni Corelli 2008-10-15 355 San Mateo Jasper Ridge Biological Preserve, Stanford University; west of Road C, beyond Trail 1, before low flow crossing 83 Comment
  RSA739721  Hypericum canariense John Dittes, Josephine Guardino 2007-6-30 1457 San Mateo Undesignated section of Punta Del Ano Nuevo Lant Grant, Central Coast, Ano Nuevo State Reserve, coastal terrace 2.4 air mile SE of Pidgeon Point Lighthouse, E side of Hwy 1 on slope S and E of Gazos Creek. 21 Comment
  UC101765  Hypochaeris glabra Katharine Brandegee 1891-6-1 San Mateo South San Francisco Comment
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Apr 1 2009
  CAS-BOT-BC311483  Hypochaeris radicata John H. Thomas 1958-3-19 7057 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  CAS-BOT-BC311485  Hypochaeris radicata A. D. E. Elmer 1903-4-1 4861 San Mateo Lake San Andreas Comment
  SD39734  Hypochaeris radicata Edith A. Purer 1933-7-27 5342 San Mateo Pigeon Point Comment
  POM361225  Hypochaeris radicata E. A. Purer 1932-7-18 4005 San Mateo Half Moon Bay Comment
  OBI33307  Ilex aquifolium Marcia Meissner 1965-5-7 5 San Mateo Growing in garden at 139 Scenic Dr., Redwood City Comment
  UCR266160  Ilex aquifolium A. C. Sanders 2015-12-22 41886 San Mateo San Francisco Bay Region, San Bruno Mountain, Summit Loop Trail above April Brook 274 Comment
  UCR260807  Iris douglasiana S. White 1998-6-5 34 San Mateo Central Coast, City of Moss Beach, west side of intersection of Beach Way and Marine Blvd., 40 ft. down path leading from Moss Beach Distillery 21 Comment
  RSA136530  Iris douglasiana Lee W. Lenz, E. K. Balls 1952-5-6 17096 San Mateo Old La Honda Road to Palo Alto, northeast from Highway 5 305 Comment
  RSA3090  Iris douglasiana Carl B. Wolf 1931-8-21 2332 San Mateo 0.5 mi above east base of La Honda Grade; Santa Cruz Mountains 244 Comment
  CAS-BOT-BC133664  Iris longipetala Alice Eastwood 1914-3-12 3751 San Mateo San Bruno Hills Comment
  CAS-BOT-BC133652  Iris longipetala Elmer I. Applegate 1895-3-3 282 San Mateo Purissima Comment
  SBBG1123  Iris longipetala H. and M. Dearing 1933-5-14 2766 San Mateo Skyline Boulevard, S of San Francisco 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
  UC571173  Iris macrosiphon A. E. Borell 1928-4-1 58 San Mateo San Bruno Mountains Comment
  JROH4429  Iris pseudacorus J. H. Thomas 1958-5-11 7165 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of lake Comment
  JROH4432  Iris pseudacorus John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4436  Iris pseudacorus John Hunter Thomas 1990-6-7 24865 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of lake at boat ramp near bridge over the 2 halves of Searsville Lake. Comment
  CAS-BOT-BC57730  Isoetes howellii W. R. Dudley 1909-10-31 s.n. San Mateo Woodside Valley Pond Comment
  CAS-BOT-BC112628  Isolepis cernua H. L. Mason 1921-6-2 s.n. San Mateo Pebble Beach, near Pescadero. Comment
  OBI22587  Isolepis cernua Lewis S. Rose 1956-7-2 56117 San Mateo Skyline Blvd, Hills W of San Mateo 183 Comment
  POM259793  Isolepis cernua I. L. Wiggins, Roxana S. Ferris 1939-8-2 9290 San Mateo Ano Nuevo Point Comment
  POM267963  Isolepis cernua Jens Clausen 1939-7-1 1745 San Mateo Ano Nuevo Point. Comment
  RSA132406  Isolepis cernua John H. Thomas 1959-7-8 8017 San Mateo Pescadero Beach. Comment
  CAS-BOT-BC340139  Jaumea carnosa W. R. Dudley 1908-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Laguna Salada Comment
  RSA0064344  Juncus balticus Peter Rubtzoff, Elizabeth McClintock 1989-8-31 10044 San Mateo San Bruno Mountains, near Willow Pond (located near Saddle Trail), ca. 0.15 miles north of junction iwth Old Guadalupe Trail. Comment
  JROH4448  Juncus bolanderi Ann Lambrecht 2004-7-21 12 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Corte Madera Creek. Comment
  UCR121578  Juncus bufonius George K. Helmkamp, E. A. Helmkamp 1999-6-28 5012 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  JROH4455  Juncus bufonius var. bufonius John Rawlings 2012-5-25 1119 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the intersection of Road E and Trail 13 southeast of Searsville Lake. 112 Comment
  JROH5673  Juncus bufonius var. bufonius John Rawlings 2014-6-10 1275 San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek delta near open water. 104 Comment
  RSA17947  Juncus bufonius var. bufonius Carl B. Wolf, Le Roy Abrams 1927-6-4 s.n. San Mateo Pescadero. Comment
  POM290139  Juncus bufonius var. congestus Lyman Benson 1930-5-26 2145 San Mateo Stanford University. Lake Searsville. 152 Comment
  UC1101043  Juncus bufonius var. congestus Herbert L. Mason 1949-7-7 14030 San Mateo Mouth of Gazos Creek Comment
  SJSU15214  Juncus capitatus Toni Corelli 2011-4-28 700 San Mateo Ano Nuevo, Cascade Field, junction of Cascade Creek Trail and Atkinson Bluff Trail 9 Comment
  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
  UC652558  Juncus lescurii Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9289 San Mateo Ano Nuevo Point Comment
  JROH4488  Juncus occidentalis John Hunter Thomas 1982-5-18 20934 San Mateo Jasper Ridge Biological Preserve, Stanford University. Old racing oval. Comment
  SJSU15929  Juncus occidentalis John Rawlings, Toni Corelli 2016-4-29 1762 San Mateo Cascade Field, north and south of Cascade Cr. Trail, Ano Nuevo State Park 21 Comment
  JROH5797  Juncus phaeocephalus John Rawlings 2016-5-3 1779 San Mateo Jasper Ridge Biological Preserve, Stanford University. South of Trail 9 and west of Rd F in contact drainage 185 Comment
  RSA796175  Juncus phaeocephalus Peter Rubtzoff 1978-8-17 9260 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH4513  Juncus xiphioides John Hunter Thomas 1978-4-20 19087 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4516  Juncus xiphioides John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5741  Kickxia spuria John Rawlings 2015-10-2 1661 San Mateo Jasper Ridge Biological Preserve, Stanford University; Bear Creek 81 Comment
  JROH5265  Koeleria macrantha H. J. Dengler 1961-4-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Lower serpentine margin of gully on east serpentine near first or east-most enclosure. Comment
  RSA87125  Koeleria macrantha D. D. Keck 1932-5-6 1476 San Mateo Above Millbrae Highlands Comment
  UCD85838  Koeleria macrantha P. B. Kennedy 1916-5-7 s.n. San Mateo Crocker Estate, Burlingame. Comment
  UCD86022  Koeleria macrantha A. A. Beetle 1942-6-11 3597 San Mateo rt. 5, 15 miles south of San Bruno. Comment
  CAS-BOT-BC273733  Koeleria pyramidata Walter Knight; Irja Knight 1964-4-25 s.n. San Mateo San Bruno Mountain. Near Nike base Comment
  SEINET12317274  Lachnagrostis filiformis H. E. Wieser 1932-1 s.n. San Mateo Black Mtn road, Hillsborough Hills, near Burlingame Comment
  CAS-BOT-BC340704  Lactuca virosa Ira L. Wiggins 1979-8-26 22244 San Mateo Alley between Central and Woodland Avenues, running from Pope to Gilbert Streets, Menlo Park Comment
  CAS-BOT-BC340706  Lactuca virosa Walter Knight; Irja Knight 1963-7-27 s.n. San Mateo San Bruno Mountain. Saddle Camp Comment
  CAS-BOT-BC341627  Lagophylla ramosissima Linda Fox 1969-6-20 1000 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  JROH961  Lagophylla ramosissima John H. Thomas 1969-5-28 15087 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH966  Lagophylla ramosissima John Hunter Thomas 1983-7-20 22900 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH968  Lagophylla ramosissima John Hunter Thomas 1986-6-7 24084 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC272430  Lamarckia aurea W. R. Dudley 1906-5-19 s.n. San Mateo Hillside toward Cordilleras Creek and Whipple Road on Britton Ranch west of Redwood City, Santa Cruz Peninsula Comment
  JROH5638  Lapsana communis John Rawlings 2014-6-2 1250 San Mateo Jasper Ridge Biological Preserve, Stanford University. Bear Creek and Preserve Boundary. 87 Comment
  UCSC003370  Lasthenia Randall Morgan 2001-5-9 3729 San Mateo north edge of Montara, just north of Chart House restaurant, San Mateo County Comment
  CAS-BOT-BC339060  Lasthenia californica John H. Thomas 1961-5-7 9251 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC339073  Lasthenia californica A. D. E. Elmer 1903-4-1 4738 San Mateo San Bruno Hills Comment
  CAS-BOT-BC339096  Lasthenia californica John H. Thomas 1964-4-30 10367 San Mateo San Bruno Mountain in northern part of county 396 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
  POM52845  Lasthenia californica A. D. E. Elmer 1903-04 4738 San Mateo San Bruno Hills Comment
  POM55142  Lasthenia californica C. F. Baker 1903-4-6 1890 San Mateo San Bruno Hills. Comment
  POM55213  Lasthenia californica A. D. E. Elmer 1903-04 4507 San Mateo San Bruno Hills Comment
  CAS-BOT-BC339058  Lasthenia californica Lewis S. Rose 1933-5-3 33141 San Mateo Montara Comment
  CAS-BOT-BC339094  Lasthenia californica W. R. Dudley 1899-5-14 s.n. San Mateo About hills southwest of Baden Comment
  RSA116658  Lasthenia californica Roxana S. Ferris 1921-4-7 2128 San Mateo San Bruno Mt.; Plants of the Santa Cruz Mountain Peninsula. 213 Comment
  JEPS98730  Lasthenia californica subsp. californica Raymund Chan 1998-5-9 98031 San Mateo Mori Point Pacifica Comment
  JROH5789  Lasthenia californica subsp. californica John Rawlings 2016-5-3 1781 San Mateo Jasper Ridge Biological Preserve, Stanford University; bare, rocky, sepentinite about 30 yards west of Rd F in Area C 177 Comment
  UC202790  Lasthenia californica subsp. californica A. D. E. Elmer 1903-4-1 4738 San Mateo San Bruno Hills Comment
  CAS-BOT-BC324425  Lasthenia californica subsp. macrantha Kenton L. Chambers 1956-6-20 1045 San Mateo Pebble Beach near Pescadero Point, on bluff between Highway 1 and the ocean Comment
  CAS-BOT-BC324429  Lasthenia californica subsp. macrantha H. L. Mason 1921-6-1 s.n. San Mateo Pebble Beach near Pescadero Comment
  SEINET11811271  Lasthenia chrysostoma L. K. Henry 1956-1 s.n. San Mateo along Pacific Ocean at Pigeon Point Lighthouse on Rt. 1 Comment
  UC1142638  Lasthenia glabrata subsp. glabrata Edw. L. Greene 1886-5-11 San Mateo Belmont Comment
  CAS-BOT-BC355543  Lasthenia glabrata var. glabrata David D. Keck 1932-4-29 1452 San Mateo Redwood City Comment
  JEPS10017  Lasthenia gracilis W. L. Jepson 1921-4-3 9113 San Mateo Colma Canyon northwestern end San Bruno Hills Comment
  SJSU15210  Lasthenia gracilis Teri Barry 2010-4-23 San Mateo Jasper Ridge Biological Preserve northwest of Trail 9 near the intersection of Road F and Trail 9. 189 Comment
  JEPS28873  Lasthenia gracilis V. F. Hesse 1962-7-19 3166 San Mateo 6 Comment
  UCD133776  Lasthenia gracilis R. E. Dengler 1960-4-10 4 San Mateo Jasper Ridge, Stanford Biological Reserve. 190 Comment
  CAS-BOT-BC368192  Lasthenia minor K. L. Chambers 1956-6-20 1047 San Mateo Pebble Beach near Pescadero Point, between Hwy 1 and the ocean, on bluff near parking area. 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
  SJSU2270  Lasthenia minor C. W. Sharsmith 1947-3-13 6747 San Mateo Pescadero Beach near Pescadero Point Comment
  UC188985  Lasthenia minor Michener and Bioletti 1892-5-1 San Mateo Cemeteries Comment
  POM194716  Lathyrus littoralis H. M. Hall 1924-6-17 11957 San Mateo Salada Comment
  POM277781  Lathyrus polyphyllus Lyman Benson 1930-5-26 2137 San Mateo Stanford University. Lake Searsville. 152 Comment
  POM19357  Lathyrus vestitus subsp. bolanderi Edward L. Greene 1902-1-15 8231 San Mateo West side Kings Mountain. Comment
  RSA14975  Lathyrus vestitus subsp. vestitus L. S. Rose 1935-5-29 35191 San Mateo Kings Mountain Comment
  CDA9326  Lathyrus vestitus var. vestitus M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 878 San Mateo Pacifica: San Pedro Valley County Park, at Brooks Creek Trail trailhead, near visitor center's parking lot. 74 Comment
  CDA31708  Lavatera arborea M. K. Beyers, G. F. Hrusa, P. Woods, D. Orozco 2010-4-17 s.n. San Mateo Brisbane: Underneath northbound Highway 101 exit (426B), adjacent to the Radisson Hotel s parking lot. Approximately, 700 feet northwest of San Francisco Bay s west shores. Comment
  RSA0110304  Lavatera arborea John H. Thomas 1959-4-4 7660 San Mateo At Pescadero. 61 Comment
  RSA176876  Lavatera cretica John H. Thomas 1964-4-30 10335 San Mateo Near intersection of El Camino Real and F St, Colma Comment
  RSA187501  Lavatera cretica John H. Thomas 1954-5-28 4241 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 30 Comment
  CAS-BOT-BC323154  Layia chrysanthemoides David D. Keck 1932-5-6 1487 San Mateo Near Skyline Boulevard, west of Millbrae Highlands. Comment
  CAS-BOT-BC323162  Layia chrysanthemoides J McMurphy 1909-6-13 s.n. San Mateo San Bruno HIlls Comment
  CAS-BOT-BC323156  Layia chrysanthemoides David D. Keck 1932-5-6 1488 San Mateo 4 miles W of Burlingame on Skyline Boulevard. Comment
  CAS-BOT-BC321067  Layia gaillardioides A. D. E. Elmer 1903-6-1 4261 San Mateo Alpine School House Comment
  CAS-BOT-BC321075  Layia gaillardioides James McMurphy 1907-4-27 s.n. San Mateo Kings Mt. Comment
  CAS-BOT-BC321114  Layia gaillardioides David D. Keck 1932-6-1 1798 San Mateo 1.5 mi. NE of La Honda Santa Cruz Mountains 213 Comment
  CAS-BOT-BC321073  Layia gaillardioides Josephine D. Randall 1907-7-28 89 San Mateo Black Mt. Road near Iverson's. Comment
  CAS-BOT-BC321094  Layia gaillardioides W. R. Dudley 1900-5-19 s.n. San Mateo Santa Cruz Mountain Peninsula, La Honda State Road below Grand View Saloon Comment
  CAS-BOT-BC321096  Layia gaillardioides W. R. Dudley 1905-6-19 s.n. San Mateo Alpine School, Black Mt. Comment
  CAS-BOT-BC321100  Layia gaillardioides David D. Keck 1932-6-1 1798 San Mateo 1.5 mi. NE of La Honda (5 mi SW of Skyline Blvd) Comment
  CAS-BOT-BC321116  Layia gaillardioides David D. Keck 1932-5-11 1763 San Mateo La Honda road 2 miles W of Skyline Blvd. Comment
  UC89225  Layia gaillardioides Katharine Brandegee 1905-6-20 San Mateo banks a few miles from San Mateo Comment
  UC935712  Layia gaillardioides David D. Keck 1932-5-6 1483 San Mateo w of Milbrae Highlands Skyline Boulevard; Santa Cruz Mountains 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
  JEPS27361  Layia hieracioides Rimo Bacigalupi with Jim Roof and L. R. Heckard 1961-4-24 7621 San Mateo lateral ridge below and se of end of paved ridge-top road just e KRON television tower and station (Guadalupe Valley side of mt.); San Bruno Mountain 304 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
  POM298251  Layia hieracioides D. D. Keck 1932-6-1 1796 San Mateo Above Searsville Lake, on la Honda Road, east slope of Santa Cruz Mts. Comment
  POM53350  Layia hieracioides C. F. Baker 1902-5-4 742 San Mateo Woodside. Comment
  CAS-BOT-BC327453  Layia hieracioides David D. Keck 1933-5-11 2299 San Mateo Near west base of Montara MOuntain Grade (south side of mountain) Comment
  CAS-BOT-BC327455  Layia hieracioides David D. Keck 1933-5-11 2306 San Mateo Skyline Boulevard, east of Salada, northern San Mateo County. Comment
  CAS-BOT-BC327478  Layia hieracioides Walter Knight; Irja Knight 1963-7-5 s.n. San Mateo San Bruno Mountain; Dairy Ravine across road from KQED radio tower. Comment
  CAS-BOT-BC352222  Layia hieracioides Peter Rubtzoff 1978-7-8 9221 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  CAS-BOT-BC382222  Layia platyglossa Donald A. Johansen 1932-5-21 688 San Mateo One-half mile N of Pigeo Point Light HOuse Comment
  CAS-BOT-BC382084  Layia platyglossa J. I. McMurphy 1906-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula: Between Schoolhouse and Head of Crystal Springs Lakes Comment
  CAS-BOT-BC382086  Layia platyglossa Ned Cahill 1974-4-8 117 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City Comment
  SEINET11811325  Layia platyglossa L. K. Henry 1956-1 s.n. San Mateo along Pacific Ocean at Pigeon Point Lighthouse on Rt. 1 Comment
  JEPS33102  Lemna gibba A. D. E. Elmer July, 1903 4765 San Mateo San Pedro Comment
  CAS-BOT-BC527272  Lemna minuta Carl B. Wolf 1929-4-29 3660 San Mateo 10 miles south of San Franciscot on Skyline Blvd. Comment
  UC1101256  Lemna valdiviana Malcolm A. Nobs, S. Galen Smith 1949-8-26 1579 San Mateo about 1 mi s of Half Moon Bay Comment
  CAS-BOT-BC221527  Lepechinia calycina Margaret A. Barry 1937-6-24 193 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC221530  Lepechinia calycina David D. Keck 1932-5-25 1779 San Mateo Hills two miles west of Belmont Comment
  CAS-BOT-BC221537  Lepechinia calycina A. D. E. Elmer 1903-6-1 4416 San Mateo San Mateo Comment
  CDA34569  Lepechinia calycina M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 875 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 Comment
  POM202471  Lepechinia calycina L. S. Rose 1933-6-9 33225 San Mateo Belmont Comment
  RSA218029  Lepechinia calycina Walter Knight, I. Knight 1964-5-19 s.n. San Mateo Crocker Hills, San Bruno Mountain. Comment
  RSA409617  Lepechinia calycina E. S. Spalding 1923-8-8 s.n. San Mateo 8 mi. W of Redwood City, near Pielgas Tunnel. Comment
  UC518036  Lepechinia calycina Lewis S. Rose 1933-6-9 33225 San Mateo Belmont Comment
  JROH1545  Lepidium nitidum John H. Thomas 1974-4-13 17146 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC12601  Lepidium nitidum John H. Thomas 1974-4-11 17138 A San Mateo To the southeast of Canada Road and Edgewood Road. Northwest of Woodside. 152 Comment
  RSA66570  Lepidium oxycarpum D. D. Keck 1932-3-24 1401 San Mateo Redwood City, at border of San Francisco Bay. Comment
  UC501384  Lepidium perfoliatum David D. Keck 1932-3-24 1400 San Mateo San Francisco Bay border Redwood City Comment
  JROH1558  Lepidium strictum John H. Thomas 1968-3-17 14186 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  POM176894  Lepidium strictum Helen M. Edwards 1917-2-8 s.n. San Mateo Stanford University. Campus. Comment
  JROH5275  Leptochloa fusca subsp. uninervia John Hunter Thomas 1980-11-27 20179 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta in Searsville Lake (formed by Corte Madera Creek). Comment
  CAS-BOT-BC226611  Leptosiphon ambiguus A. D. E. Elmer 1903-4-1 4913 San Mateo Crystal Springs Lake Comment
  POM65851  Leptosiphon ambiguus C. F. Baker 1902-5-4 753 San Mateo Woodside. Comment
  JROH5672  Leptosiphon androsaceus John Rawlings 2014-4-10 1274 San Mateo Jasper Ridge Biological Preserve, Stanford University; a few feet uphill from trail 5 in serpentine prairie 124 Comment
  RSA128848  Leptosiphon androsaceus Roxana S. Ferris 1921-5-24 2192 San Mateo Bluffs, Pebble Beach near Pescadero. Comment
  JROH5663  Leptosiphon androsaceus Herb Dengler 1970-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; East serpentine Comment
  JROH5691  Leptosiphon bicolor John Rawlings 2015-4-7 1454 San Mateo Jasper Ridge Biological Preserve, Stanford University; quarry off Trail 12 110 Comment
  CAS-BOT-BC226728  Leptosiphon latisectus A. D. E. Elmer 1903-4-1 4746 San Mateo Cemeteries Comment
  POM128438  Leptosiphon liniflorus L. R. Abrams 1902-5-4 2416 San Mateo Woodside. Comment
  JROH5708  Leptosiphon parviflorus John Rawlings 2015-3-15 1351 San Mateo Jasper Ridge Biological Preserve, Stanford University; Rd. D. 110 Comment
  SJSU15218  Leptosiphon rosaceus Toni Corelli 2010-5-10 626 San Mateo Pillar Point Air Force Station 28 Comment
Read comments
Jan 23 2015
  UC106678  Leptosiphon rosaceus Katharine Brandegee 1905-6-19 San Mateo Moss Beach Halfmoon Bay Comment
  UC133724  Leptosiphon rosaceus Dr. E. B. Copeland 1903-6-6 3300 San Mateo Montara Point Comment
  CAS-BOT-BC324057  Lessingia arachnoidea John Thomas Howell 1927-9-10 3099 San Mateo Crystal Springs Lake 213 Comment
  CAS-BOT-BC325499  Lessingia arachnoidea W. Spence 1960-7-2 555 San Mateo Along Route 5, Crystal Springs Lake Comment
  POM197769  Lessingia arachnoidea John T. Howell 1926-10-9 2220 a San Mateo Near Crystal Springs Lake Comment
  POM289269A  Lessingia arachnoidea Lyman Benson 1934-7-29 6109 San Mateo Crystal Springs Lake; Mt. Range: Santa Cruz; Watershed: S. F. Bay. 152 Comment
  JROH1022  Lessingia glandulifera var. glandulifera John Hunter Thomas 1983-6-29 22714 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1023  Lessingia glandulifera var. glandulifera John Hunter Thomas 1983-7-7 22823 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1026  Lessingia glandulifera var. glandulifera John Hunter Thomas 1988-5-5 24450 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1006  Lessingia glandulifera var. glandulifera G. H. Mallory 1919-7-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; south end of Jasper Ridge Comment
  JROH1027  Lessingia glandulifera var. glandulifera Carol Zabel 1989-9-4 36 San Mateo Jasper Ridge Biological Preserve, Stanford University; near side of Road E, 100 yards down from intersection of Roads D, E, and F Comment
  CAS-BOT-BC324171  Lessingia hololeuca Cherie Wetzel 1969-7-8 924 San Mateo near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  JROH1031  Lessingia hololeuca Rachel Hays 1972-7-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB7872  Leucanthemum vulgare Myrick, Donald 1966-6-11 San Mateo Along Highway #1 near Pescadero Comment
  UCD61335  Leymus californicus P. B. Kennedy 1916-5-7 San Mateo Crocker Estate, Burlingame. Comment
  UCD64550  Leymus condensatus David L. Morgan 1955-8-1 San Mateo Lower San Mateo County: 1 mile N of Santa Cruz county line on Hwy 1. 22 Comment
  UC306537  Ligusticum apiifolium A. D. E. Elmer July 1903 4966 San Mateo San Mateo Comment
  CAS-BOT-BC436529  Ligusticum apiifolium Elizabeth McClintock 1972-4-23 s.n. San Mateo San Bruno Mountain, above Fern Rock Comment
  JROH2986  Ligustrum vulgare John Rawlings 2007-4-11 1052 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the cleared area of private property bordering the Preserve and Corte Madera Creek 115 Comment
  JROH2987  Ligustrum vulgare John Rawlings 2012-5-23 1116 San Mateo Jasper Ridge Biological Preserve, Stanford University; at the end of a spur off Trail 12 nearly opposite the intersection with Trail 10. The spur ends in a large patch of Scirpus microcarpus at the edge of Corte Madera Creek. 109 Comment
  UCR247566  Limonium binervosum Michael Perlmutter 2011-6-15 s.n. San Mateo Burlingame, Sanchez Marsh Comment
  SEINET3358242 Image available Limonium californicum Lewis S. Rose 1942-1 42225 San Mateo Brisbane 1 Comment
  POM259951  Limosella acaulis I. L. Wiggins, Roxana S. Ferris 1939-8-2 9294 San Mateo Ano Nuevo Point Comment
  UC885935  Limosella acaulis Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9294 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC123068  Linanthus croceus Alice Eastwood 1899-5-2 s.n. San Mateo Near Pt. San Pedro (Blenheim) Comment
  UC1745718  Linanthus dichotomus Annetta Carter, Helen Sharsmith 1937-5-23 1318 San Mateo E side of Middle Crystal Springs Lake, about 1/2 mi. N of dam. Comment
  HSC24042  Linum bienne Mary Katherine Wicksten 1971-6-24 114 San Mateo Huddart Park, near entrance Comment
  SEINET10634275  Linum grandiflorum Robert A. Norris 1977-5-2 Norris 3570 San Mateo Several annuals occurring locally as escapes in disturbed gravelly ground by Interstate Hwy. 280, just S of Farmhill Blvd. Exit, Woodside, San Mateo Co., California. Comment
  SEINET8912914  Lithocarpus densiflorus A. D. 1974-1 San Mateo California 35, about 5 miles from junction with 92 701 Comment
  CAS-BOT-BC36075  Lithocarpus densiflorus var. densiflorus Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  RSA15201  Lithocarpus densiflorus var. densiflorus Carl B. Wolf 1926-10-19 78 San Mateo La Honda Grade. Santa Cruz Mtns. Comment
  CAS-BOT-BC430772  Lithophragma affine George Oberlander 1950-5-21 955 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC436217  Lithophragma heterophyllum John H. Thomas 1961-5-14 9361 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  CAS-BOT-BC436225  Lithophragma heterophyllum D. E. Breedlove 1974-5-13 36209 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  JROH3894  Lithophragma heterophyllum John Hunter Thomas 1983-4-5 21319 San Mateo Jasper Ridge Biological Preserve, Stanford University. Path to redwood area Comment
  CAS-BOT-BC436223  Lithophragma heterophyllum Paul Arnaud 1941-4-19 s.n. San Mateo Redwood City - Hills, after Hesler farm entrance. Comment
  CAS-BOT-BC342306  Logfia filaginoides Eric Walther 1920-5-1 s.n. San Mateo Woodside Comment
  CAS-BOT-BC283232  Lolium multiflorum Fred Hemphill 1973-5-6 771 San Mateo San Carlos, N of Malabar Rd and Melendy Dr 243 Comment
  JROH5294  Lolium perenne W. Lennihan 1990-5-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 15 - path turnoff by black oak, bottom of swale. Comment
  RSA585119  Lolium perenne D. D. Keck 1932-5-6 1474 San Mateo Millbrae Highlands Comment
  SEINET473805  Lomatium dasycarpum L. S. Rose 1932-3-10 3268 San Mateo South San Francisco Comment
  JROH256  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1958-5-10 7145 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC21554  Lomatium dasycarpum subsp. dasycarpum L. S. Rose 1965-4-22 65027 San Mateo San Bruno Mountain, S of parking lot 579 Comment
  JROH254  Lomatium dasycarpum subsp. dasycarpum Anne Hornby 1952-5-10 111 San Mateo Jasper Ridge Biological Preserve, Stanford University; in hills above Searsville Lake Comment
  JROH257  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1963-3-2 10027 San Mateo Jasper Ridge Biological Preserve, Stanford University; north side of ridge near Westridge end Comment
  CAS-BOT-BC240587  Lonicera hispidula David D. Keck 1932-8-13 1753 San Mateo Alpine Creek Road above Rolph's Ranch, east slope of Santa Cruz Mtns. 550 Comment
  CAS-BOT-BC240595  Lonicera hispidula Cherie Wetzel 1969-6-20 861 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC240601  Lonicera hispidula Daniel Cohen 1953-6-5 110 San Mateo Los Trancos Woods Comment
  CAS-BOT-BC240599  Lonicera hispidula W. R. Dudley 1902-9-21 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Belmont Reservoir Comment
  POM46744  Lonicera hispidula var. vacillans Edward L. Greene 1901-9-2 1533 San Mateo Crystal Springs Lake. Comment
  RSA120039  Lonicera hispidula var. vacillans W. R. Dudley 1896-9-15 s.n. San Mateo El Corte Madera Creek. Santa Cruz Mountain Peninsula. Comment
  RSA1949  Lonicera hispidula var. vacillans C. B. Wolf 1930-11-5 1061 San Mateo 2 miles W of La Honda, Santa Cruz. 305 Comment
  UC1125230  Lonicera hispidula var. vacillans N. K. Carlson 1935-7-5 61 San Mateo 3 mi s Bellvale; Santa Cruz Quadrangle Comment
  CAS-BOT-BC243974  Lonicera involucrata var. ledebourii W. R. Dudley 1894-3-28 s.n. San Mateo Canyon near Lobitos Creek Comment
  POM250690  Lonicera involucrata var. ledebourii D. D. Keck 1938-5-30 4726 San Mateo San Gregorio. 30 Comment
  UC1536785  Lonicera involucrata var. ledebourii G. H. True 1936-4-5 387 San Mateo canyon between San Gregorio and Pescadero 30 Comment
  UCD163731  Lonicera involucrata var. ledebourii Peter Rubtzoff 1980-12-11 9635 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC241414  Lonicera japonica Elizabeth McClintock 1967-9-24 s.n. San Mateo San Bruno Mountain. Crocker Avenue Comment
  RSA187498  Lotus corniculatus John H. Thomas 1954-6-11 4271 San Mateo 0.8 miles north of Pescadero Creek. 30 Comment
  SEINET957265  Lotus corniculatus Jane A. Reese 1966-1 131 San Mateo Whiskey hill road, 1 mile from junction with Woodside road. 152 Comment
  HSC2126  Lotus formosissimus J. Wendell Howe 1930-5-27 San Mateo Pigeon Point Rd., 3 mi. S of Pescadero Comment
  UC729630  Lotus formosissimus Carl B. Wolf 1929-5-10 3703 San Mateo s of Pescadero; Pigeon Pt. 30 Comment
  SEINET5557839  Lotus scoparius H. S. Gentry 1931-1 90 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  POM18624  Lotus stipularis C. F. Baker 1902-5-10 805 San Mateo Kings Mountain. Comment
  JEPS83227  Lupinus Adele Lewis Grant 1917-3-6 938 San Mateo Pebble Beach near Pescadero; near Pescadero, Pebble Beach 3 Comment
  JROH5564  Lupinus affinis John Rawlings 2013-4-2 1160 San Mateo Jasper Ridge Biological Preserve, Stanford University. Ten meters east of Westridge Creek at base of rock outcrop near South Boundary Chia site. 162 Comment
  POM77731  Lupinus affinis C. P. Smith 1921-4-9 3293 San Mateo San Mateo Canyon Comment
  UCSB11178  Lupinus albifrons Connelly, Dianne 1962-4-21 San Mateo San Mateo County Game Preserve, 15 miles southeast of San Francisco on Highway 9 152 Comment
  CAS-BOT-BC195788  Lupinus albifrons var. albifrons Charles Piper Smith 1946-7-15 46373 San Mateo Belmont, Vanderlaan Summit Comment
  CAS-BOT-BC196106  Lupinus albifrons var. collinus Javier Penalosa 1963-3-9 2685 San Mateo 1/2 mi. east of 1314 ft. summit 304 Comment
  CAS-BOT-BC196110  Lupinus albifrons var. collinus Walter Knight; Irja Knight 1964-3-15 580 San Mateo Colma Canyon Comment
  CAS-BOT-BC196117  Lupinus albifrons var. collinus M. S. Jussel 1931-4-18 s.n. San Mateo Colma Canyon Comment
  CAS-BOT-BC196123  Lupinus albifrons var. collinus Elizabeth McClintock 1967-4-16 s.n. San Mateo Buckeye Canyon Comment
  CAS-BOT-BC196129  Lupinus albifrons var. collinus A. D. E. Elmer 1903-5-1 4643 San Mateo Delmont Comment
  SEINET10484532  Lupinus albifrons var. collinus Elizabeth M. McClintock 1963-6-9 McClintock 134 San Mateo San bruno mountain. Exposed slopes below top of mountain Comment
  SEINET10484535  Lupinus albifrons var. collinus Walter Knight, Irja Knight 1965-3-15 Knight 1225 San Mateo Low growing on open slopes. Colma canyon. San bruno mountains Comment
  CAS-BOT-BC8521  Lupinus apricus C. P. Smith 1908-3-30 1374 San Mateo Stanford University, field back of Cedro Cottage Comment
  CAS-BOT-BC8523  Lupinus apricus C. P. Smith 1908-5-2 1427 San Mateo Stanford University. Stockfarm bridge. Comment
  JEPS85208  Lupinus arboreus Roy E. Buck, James A. West 1985-4-29 523 San Mateo along n side of Whitehouse Canyon Rd. just w of minor gulch, e of first curve in from CA Hwy 1 ca 0.7 air km ne Whitehouse Canyon Rd. - CA 1 jct (2.0 air km e of Franklin Point, Cascade Ranch); e of Franklin Point, Cascade Ranch 60 Comment
  SEINET11548753  Lupinus arboreus Univ. of Calif. Bot. Gard. 1974-1 list 17 - 43 San Mateo San Mateo Co.;;;; Comment
  POM11077  Lupinus arboreus var. arboreus A. D. E. Elmer 1903-05 4414 San Mateo Colma. Comment
  UC75246  Lupinus bicolor C. F. Baker 1903-4-8 1931 San Mateo Crystal Springs Lake Comment
  HSC43288  Lupinus bicolor Dunn 1946-5-16 2596 San Mateo 1 block N of Sloat Blvd. at Vale Ave. Comment
  SEINET11071791 Image available Lupinus collinus A. A. Heller 1907-4-25 8462 San Mateo San Bruno Hills Comment
  POM257513  Lupinus densiflorus var. aureus Carl B. Wolf 1929-5-17 3712 San Mateo Alpine road east of Skyline Blvd. 305 Comment
  POM11073  Lupinus densiflorus var. palustris A. D. E. Elmer 1903-05 4847 San Mateo Lake San Andreas. Comment
  SD37885  Lupinus formosus var. formosus Edith A. Purer 1933-8-13 5426 San Mateo Near Belmont Comment
  RSA130909  Lupinus formosus var. formosus E. K. Balls 1958-7-22 23592 San Mateo Highway 5, at turn-off to San Bruno, San Bruno Hills. 213 Comment
  SEINET5628414 Image available Lupinus latifolius A. A. Heller 1907-5-23 8562 San Mateo Back of San Mateo on the Half Moon Bay road. Comment
  JROH2122  Lupinus latifolius var. latifolius John H. Thomas 1977-4-29 18575 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2123  Lupinus latifolius var. latifolius John H. Thomas 1977-4-29 18575 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSC011283  Lupinus latifolius var. latifolius Unknown 1972-5-26 s.n. San Mateo Waddell Creek Area Comment
  JROH2127  Lupinus nanus John H. Thomas 1967-4-28 12723 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2131  Lupinus nanus John H. Thomas 1976-4-30 18100 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UCSB16951  Lupinus nanus Schulte, John 1963-4-14 San Mateo Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC164349  Lupinus nanus Peter Rubtzoff 1978-7-8 9225 San Mateo Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction. East Fork Colma Creek Canyon, W side of canyon Comment
  POM226876  Lupinus polycarpus L. R. Abrams 5094 San Mateo Menlo Heights Comment
  SEINET10969931  Lupinus succulentus Walter Knight, Irja Knight 1964-3-16 Knight s.n. San Mateo San bruno mtns. San bruno pt. Comment
  SEINET10490286  Lupinus vallicola subsp. apricus David B. Dunn, Howard Brown 1946-5-16 Dunn 2600 San Mateo Collected on dry, rocky road out in the e side of the mtns of the san francisco Peninsula; 4.7 mi ne on the canyon rd from the jct with skyline drive (hwy 5). 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
  POM190281  Lupinus variicolor D. D. Keck 1932-5-11 1967 San Mateo Two miles north of San Gregorio. 15 Comment
  RSA162483  Lupinus variicolor E. K. Balls 1963-5-22 12065 San Mateo 4.1 miles N of Moss Beach, along Hwy 1. 61 Comment
  RSA15311  Luzula comosa Carl B. Wolf 1927-4-3 281 San Mateo 1 1/2 miles above east base of La Honda grade, Santa Cruz Mountains. Comment
  CAS-BOT-BC441374  Luzula subsessilis R. E. Frenkel 1964-5-22 505 San Mateo San Francisco Water District, 0.3 mile N of Sawyer Ridge Road, on Portola Ridge Road 268 Comment
  UC311531  Lysichiton americanus A. D. E. Elmer June, 1903 4551 San Mateo Butano Creek Comment
Read comments
Sep 6 2011
  JROH2943  Lythrum hyssopifolia L. R. Abrams 1914-7-1 5113 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  UC138274  Lythrum hyssopifolia Katharine Brandegee 1905-6-1 San Mateo Colma Comment
  UC19773  Lythrum hyssopifolia J. Burtt Davy 1893-6-17 777 San Mateo Belmont Comment
  UCR122578  Lythrum hyssopifolia George K. Helmkamp, E. A. Helmkamp 2001-6-2 6794 San Mateo Central Coast, Purissima Creek Rd., 0.9 mi from Calif. Hwy 1(junction about 4 mi south of Half Moon Bay) 91 Comment
  JROH2947  Lythrum hyssopifolia John Hunter Thomas 1977-6-16 18751 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  SD38972  Madia elegans Edith A. Purer 1933-8-13 5421 San Mateo Santa Clara Valley near Belmont. Comment
  CAS-BOT-BC343918  Madia elegans John Thomas Howell 1926-10-9 2221 San Mateo Between Crystal Spring Lakes and San Mateo Comment
  CAS-BOT-BC343332  Madia gracilis David D. Keck 1932-5-25 1780 San Mateo Hills two miles west of Belmont Comment
  RSA3891  Madia gracilis I. L. Wiggins 1929-7-4 3780 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  CAS-BOT-BC345142  Madia sativa J. H. Thomas 1959-8-16 8064 San Mateo About 2 miles SW of Pescadero 60 Comment
  CAS-BOT-BC353466  Madia sativa Peter Rubtzoff 1975-9-11 8378 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  JROH1098  Madia sativa John H. Thomas 1963-6-23 10163 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge end of ridge Comment
  UC523546  Madia sativa David D. Keck 1933-11-2 2628 San Mateo 3.5 mi sw Pescadero (within 100 m of ocean) Comment
  UC913116  Madia sativa David D. Keck 1930-10-15 988 San Mateo sw Woodside; Coast Ranges 450 Comment
  UCR256297  Madia sativa Peter Rubtzoff 1979-7-26 9301 San Mateo 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction, San Bruno Mountains 213 Comment
  JROH5749  Maianthemum racemosum L. Nordby 1982-4-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near San Francisquito Creek, north of Rattlesnake rock Comment
  POM169288  Maianthemum racemosum subsp. amplexicaule C. F. Baker 1903-4-8 1917 San Mateo San Andreas Lake Comment
  CAS-BOT-BC512111  Maianthemum racemosum subsp. amplexicaule John H. Thomas 1967-5-7 12835 San Mateo Near intersection of Bean Hollow Rd. and Pescadero Rd., about 1/2 mile westward from Pescadero. 91 Comment
  SD39134  Maianthemum racemosum subsp. amplexicaule McCallum 1933-5-22 2145 San Mateo Damp woods in Los Trancus woods. Comment
  CAS-BOT-BC514167  Maianthemum stellatum John H. Thomas 1961-5-7 9280 San Mateo San Bruno Mountain in northern part of county Comment
  JROH4715  Maianthemum stellatum John Hunter Thomas 1985-4-25 23569 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC514158  Maianthemum stellatum Lewis S. Rose 1933-4-9 33070 San Mateo Belmont, wooded hills Comment
  CAS-BOT-BC514160  Maianthemum stellatum W. R. Dudley 1900-3-18 s. n. San Mateo Near San Andreas Comment
  JROH2963  Malacothamnus fasciculatus John Hunter Thomas 1977-6-7 18732 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR254721  Malus domestica Peter Rubtzoff 1975-10-24 8432 San Mateo San Francisco Bay Region, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains 220 Comment
  UCD39014  Malva arborea Beecher Crampton 1962-6-11 6510 San Mateo Pacifica, Sharp Park at Mori's Point. Comment
  UCD116405  Malva arborea Ellen Dean; Tom Starbuck, Margaret Starbuck 2005-10-16 2745 San Mateo Town of Miramar, N of Half Moon Bay. Along Mirada Rd. on coastal bluff overlooking beach. Comment
  JROH2966  Malva nicaeensis John H. Thomas 1970-7-5 15672 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA195577  Malva nicaeensis John H. Thomas 1966-4-24 11576 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  SEINET5560600  Malva parviflora H. S. Gentry 1931-1 87 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC67843  Marsilea vestita Peter H. Raven 1950-6-3 2269 San Mateo San Andreas Lake 121 Comment
  JROH618  Matricaria discoidea John H. Thomas 1975-4-19 17793 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH621  Matricaria discoidea John Hunter Thomas 1980-5-8 19953 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH626  Matricaria discoidea John Hunter Thomas 1989-5-9 24700 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC348194  Matricaria discoidea Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo San Bruno Mountain. Crocker Hills Comment
  UC635442  Meconella californica H. L. Mason 1928-2-22 4162 San Mateo San Bruno Mtns Comment
  CAS-BOT-BC422680  Meconella californica Elizabeth McClintock 1965-3-21 s.n. San Mateo San Bruno Mountain. East of Brisbane power lines and north of summit ridge. Comment
  CAS-BOT-BC269473  Melica californica LeRoy Abrams 1901-5-1 1568 San Mateo Woodside Comment
  CAS-BOT-BC269479  Melica californica George Oberlander 1950-4-23 808 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  JROH5305  Melica imperfecta John Hunter Thomas 1979-5-18 19556 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near green shack. Comment
  UCD87869  Melica imperfecta P. B. Kennedy 1916-4-1 s.n. San Mateo Daly City, Colma Canyon, S San Francisco. Comment
  CAS-BOT-BC264239  Melica torreyana Ira L. Wiggins 1928-4-14 2904 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC264244  Melica torreyana Phillip C. Wheeler 1965-5-18 s.n. San Mateo Near base of mountain at Olivet Cemetery, San Bruno Mountain Comment
  CAS-BOT-BC264246  Melica torreyana John H. Thomas 1965-4-29 10620 San Mateo San Bruno Mountain in northern part of county 396 Comment
  SEINET3561264 Image available Melica torreyana Lewis S. Rose 1932-5-3 32216 San Mateo San Bruno. 183 Comment
  JROH2198  Melilotus indicus John Hunter Thomas 1988-6-2 24497 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC290608  Mentha Peter Rubtzoff; Walter Knight; Irja Knight 1987-10-16 9866 San Mateo San Bruno Mountain. Saddle area on north side of Guadelupe Canyon Parkway west of Radio Road junction; NW part of the area along old Guadalupe Road. Comment
  RSA0018571  Mentha Peter Rubtzoff, Walter Knight, Irja Knight 1987-10-16 9866 San Mateo San Bruno Mountain. Saddle area on north side of Guadelupe Canyon Parkway west of Radio Road junction. NW part of the area along old Guadalupe Road. Comment
  RSA217959  Mentha Phillip C. Wheeler 1965-7-7 s.n. San Mateo San Bruno Mountains; Crocker Avenue Comment
  UC583160  Mentha canadensis Lewis S. Rose 1936-9-13 36730 San Mateo Granada 1 Comment
  JROH2816  Mentha pulegium John Hunter Thomas 1980-11-12 20163 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU43  Mentha pulegium C. D. Duncan 1925-10-11 San Mateo Mud Lakes, summit of Coal Mine Ridge (above Corte Madera Cr) Santa Cruz Mts. Comment
  UC1778594  Mercurialis annua T. C. Fuller 1960-6-23 4542 San Mateo East fence line, Sanchez Adobe House, S side of Linda Mar Blvd., Pedro Valley. Comment
  CDA4874  Mercurialis annua T. C. Fuller 1967-8-23 16293 San Mateo Coastways Ranch, 0.2 mile east of the Coast Highway (Hwy 1), 0.2 mile north of the county line of Santa Cruz Co., 0 Comment
  CDA4876  Mercurialis annua G. D. Barbe 1974-6-4 1826 San Mateo Sanchez Adobe County Park and Museum, Mira Mar Boulevard, Linda Mar District. 0 Comment
  RSA34832  Mercurialis annua I. L. Wiggins 1945-9-22 11194 San Mateo Cultivated fields in Pedro Valley, inland from Pedro Point. Comment
  CAS-BOT-BC428900  Micranthes californica W. R. Dudley 1900-3-16 s.n. San Mateo Santa Cruz Peninsula. Bank by Redwood Stage road to Woodside Comment
  CAS-BOT-BC428907  Micranthes californica Paul Arnaud 1941-3-16 s.n. San Mateo Redwood City, near Hesler farm entrance - Hills. 45 Comment
  CAS-BOT-BC348581  Micropus californicus var. californicus Margaret A. Barry 1937-4-21 9 San Mateo On Coal Mine Ridge Comment
  JROH1120  Micropus californicus var. californicus John H. Thomas 1961-4-29 9187 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC348723  Microseris bigelovii W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. West of Baden Comment
  CAS-BOT-BC349022  Microseris douglasii subsp. douglasii H. A. Dutton 1900-3-25 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  JROH1144  Microseris douglasii subsp. douglasii John H. Thomas 1971-4-10 15749 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC92194  Microseris douglasii subsp. douglasii A. Kellogg San Mateo San Bruno Hills Comment
  CAS-BOT-BC349191  Microseris elegans R. E. Frenkel 1964-5-26 507 San Mateo On Whiting Ridge Fire Tr. Road, SFWD, 0.5 mile west of Spring Valley Ridge Road 304 Comment
  RSA1950  Mimulus aurantiacus var. aurantiacus Carl B. Wolf 1930-11-5 1804 San Mateo one-half way up east side of the La Honda Grade, Santa Cruz Mtns. 305 Comment
  UC885697  Mimulus aurantiacus var. aurantiacus E. W. Rust 1907-4-27 127 San Mateo vicinity Stanford University; King's Mountain 213 Comment
  UCD122291  Mimulus aurantiacus var. aurantiacus June McCaskill 1954-5-8 298 San Mateo Highway 5, ca. 2 miles northeast of junction with Halfmoon Bay Road. 883 Comment
  UCSC007764  Mimulus aurantiacus var. aurantiacus Becky Hendricks, Chris Lay 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC174576  Minuartia californica A. A. Heller 1907-4-20 8447 San Mateo Near Lake Merced Comment
  CAS-BOT-BC388831  Minuartia douglasii Ned Cahill 1974-4-19 148 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  POM151741  Minuartia douglasii Edward L. Greene 1902-5-4 835 San Mateo Woodside. Comment
  CAS-BOT-BC214082  Monardella villosa Cherie Wetzel 1969-6-20 887 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  RSA176713  Monardella villosa John H. Thomas 1963-6-23 10166 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto Comment
  CAS-BOT-BC214172  Monardella villosa John H. Thomas 1971-5-2 15862 San Mateo Near intersection of Canada and Edgewater Roads, about 4 miles SW of center of Rewood City 304 Comment
  RSA18315  Monardella villosa Carl B. Wolf 1927-7-14 596 San Mateo Summit of Kings Mt. at junction with Skyline Drive Comment
  JROH2838  Monardella villosa subsp. villosa D. E. Breedlove 1971-5-31 19346 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH2842  Monardella villosa subsp. villosa John H. Thomas 1976-5-26 18159 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2843  Monardella villosa subsp. villosa John Hunter Thomas 1980-6-5 19995 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
  HSC24050  Monardella villosa subsp. villosa Mary Katherine Wicksten 1971-6-24 115 San Mateo Huddart Park, by park entrance Comment
  JROH2847  Monardella villosa subsp. villosa John Hunter Thomas 1982-6-7 21026 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  CAS-BOT-BC327793  Monolopia gracilens Fred Hemphill 1973-4-22 770 San Mateo San Carlos. N of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC349586  Monolopia major Le Roy Abrams 1898-5-1 s.n. San Mateo New Grade Road, Santa Cruz Mts. Comment
  POM169572  Muilla maritima C. F. Baker 1902-3-30 423 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC243706  Myoporum laetum Elizabeth McClintock; Paul Reeberg 1988-8-12 s.n. San Mateo Above Hillside School, San Bruno Mountains Comment
  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
  RSA120743  Myosotis latifolia S. S. Tillett, I. Sternback 1956-6-24 542 San Mateo Behind (n.) Portola Camp Store, just outside Portola State Park. 396 Comment
  HSC23339  Myosotis sylvatica L. A. Wright Jr. 1971-4-4 25 San Mateo 0.5 mi. E on Gazos Creek Rd. from junction with Cloverdale Rd., 6.5 mi. S off of Pescadero Rd., about 3 mi. E off of Hwy. 1. On N side of Gazos Creek, about 25 ft. from the creek and about 100 ft. from the road 91 Comment
  CAS-BOT-BC101769  Myrica californica W. R. Dudley 1894-9-22 s.n. San Mateo Preston's Ravine, Portola Valley Comment
  CAS-BOT-BC101770  Myrica californica W. R. Dudley 1893-2-18 s.n. San Mateo near La Honda Comment
  CAS-BOT-BC101777  Myrica californica Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Wax Myrtle Ravine 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
  RSA130858  Myrica californica R. C. Bacigalupi 1922-03 s.n. San Mateo Along coast near lagoon at Arroyo de los Frijoles. Comment
  RSA15308  Myrica californica Carl B. Wolf 1927-4-3 278 San Mateo 1 mi. west of Summit of La Honda grade, Santa Cruz Mts. Comment
  JROH2690  Myriophyllum aquaticum John H. Thomas 1970-7-5 15675 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  JROH2704  Myriophyllum aquaticum John Hunter Thomas 1992-5-14 25223 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat ramp. Comment
  CAS-BOT-BC260027  Nassella lepida John H. Thomas 1971-5-2 15855 San Mateo Near intersection of Canada Road and Edgewater Road, about 3 miles W from Redwood City 152 Comment
  POM295476  Nassella pulchra Lyman Benson 1930-4-17 2080 San Mateo Stanford University. 152 Comment
  RSA176741  Nassella pulchra John H. Thomas 1963-3-20 10023 A San Mateo Jasper Ridge Biological Experimental Area, about five miles southwest of Palo Alto. Comment
  RSA185012  Nassella pulchra L. S. Rose 1963-4-27 63000 San Mateo Skyline Blvd, open hills west of San Mateo. 91 Comment
  CAS-BOT-BC60479  Nasturtium officinale George Oberlander 1949-5-21 146 San Mateo San Francisco Watershed Reserve. Along Pilarcitos Creek. Comment
  RSA95822  Navarretia heterodoxa L. S. Rose 1953-6-29 53044 San Mateo Emerald Lake, hills w. of Redwood City 91 Comment
  POM226867  Navarretia mellita L. R. Abrams 1914-7-1 5224 San Mateo Searsville Lake. Comment
  UC796712  Navarretia squarrosa Ira L. Wiggins 1949-7-2 12197 San Mateo Pescadero Beach Comment
  POM282334  Navarretia squarrosa Lyman Benson 1932-7-11 3929 San Mateo Stanford University, Santa Cruz Mountain range, San Francisquito Creek watershed 152 Comment
  RSA17967  Navarretia viscidula C. B. Wolf 1927-8-13 712 San Mateo Summit La Honda Grade, Santa Cruz Mountains Comment
  JROH2756  Nemophila John Hunter Thomas 1992-4-23 25150 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rocks and along trail to redwoods Comment
  CAS-BOT-BC219474  Nemophila parviflora Alice Eastwood 1922-5-27 11325 San Mateo La Honda Comment
  CAS-BOT-BC219480  Nemophila parviflora John H. Thomas 1961-5-14 9374 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos. San Francisco Watershed Reserve 152 Comment
  CAS-BOT-BC219487  Nemophila parviflora Mrs. E. C. Sutliffe 1933-5-25 s.n. San Mateo Purissima Canyon Comment
  JROH5667  Nemophila parviflora var. parviflora John Rawlings 2014-3-31 1243 San Mateo Jasper Ridge Biological Preserve, Stanford University; along uphill side of Rd G just south of small drainage south of Rd G intersection with Rd J. 107 Comment
  JROH4171  Nicotiana acuminata var. multiflora John Rawlings 2012-8-20 1128 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek bed near Dennis Martin site marker 71 Comment
  SJSU5388  Nymphaea odorata R. A. Pattison 1970-5-16 San Mateo pond in Los Trancos Woods 6 mi SW of Stanford University Comment
  CAS-BOT-BC140431  Oemleria cerasiformis David D. Keck 1932-3-6 1396 San Mateo Near La Honda, Santa Cruz Mountains Comment
  CAS-BOT-BC140448  Oemleria cerasiformis Elizabeth McClintock 1967-4-16 s.n. San Mateo Buckeye Canyon 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
  UC652594  Oenothera elata subsp. hookeri L. R. Abrams and Ira Wiggins 1939-6-3 438 San Mateo 2 mi n Pigeon Point Lighthouse Comment
  JROH2991  Olea europaea John H. Thomas 1976-4-19 18085 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  CAS-BOT-BC499692  Orobanche californica subsp. californica Dr. Henry T. Taabor 1953-8-30 s.n. San Mateo Pigeon Pt. Comment
  CAS-BOT-BC500166  Orobanche fasciculata David D. Keck 1932-6-18 1982 San Mateo Skyline Blvd., at Langley Hill (SW of Stanford Uniersity) 600 Comment
  JROH3089  Orobanche vallicola James McMurphy 1906-8-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  CAS-BOT-BC238396  Orthocarpus Charles Piper Smith 1950-5-15 50143 San Mateo Pescadero Creek Bridge - Highway 1; 3.9 miles south Comment
  RSA92815  Orthocarpus densiflorus Peter H. Raven 1950-4-16 1776 San Mateo Colma Canyon, San Bruno Mountains. 183 Comment
  RSA184904  Orthocarpus pusillus L. S. Rose 1965-3-25 65011 San Mateo San Bruno Mountains, north end. 122 Comment
  UCR133535  Osmaronia cerasiformis Lyman Benson 1929-3-5 978 San Mateo road from Searsville Lake to Kings Mountain 610 Comment
  JROH300  Osmorhiza berteroi John Hunter Thomas 1987-4-30 24216 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH302  Osmorhiza berteroi John Hunter Thomas 1992-4-30 25174 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET6948092  Oxalis corniculata Robert A. Evers, Clara V. Evers 1975-8-24 115022 San Mateo Trailer Villa, Redwood City. Comment
  JROH5646  Oxalis micrantha John Rawlings 2014-4-22 1238 San Mateo Jasper Ridge Biological Preserve, Stanford University; at verge of Trail 11 in chaparral 143 Comment
  RSA130349  Oxalis oregana Josephine Randall 1908-3-28 s.n. San Mateo Kings Mt. 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
  UCSB16637  Oxalis oregana Schulte, John 1963-4-14 San Mateo 2 miles by air west of Portola Valley 182 Comment
  POM177457  Oxalis pes-caprae L. R. Abrams, I. L. Wiggins 1930-11-13 176 San Mateo Along Skyline Blvd. near Colma Comment
  UC1101573  Parapholis incurva Malcolm A. Nobs and S. Galen Smith 1949-8-26 1604 San Mateo Hwy 1, 0.6 mi n Pigeon Point Comment
  CDA15877  Parietaria judaica J. Xerogeanes 2000-1-4 PDR 1242905 San Mateo North Coast; Chorry Rd., San Bruno. 0 Comment
  JROH5351  Paspalum distichum John Rawlings 2011-9-4 1094 San Mateo Jasper Ridge Biological Preserve, Stanford University. At base of dam at trail terminus. 88 Comment
  RSA177004  Paspalum distichum John H. Thomas 1964-11-15 10521 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  CDA5092  Passiflora caerulea T. C. Fuller, P. Arnand Jr. 1959-6-14 2615 San Mateo Menlo Park. 0 Comment
  JROH1404  Pectocarya pusilla Carol Zabel and Ann Lambrecht 2003-4-15 48 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail c. After starting at the east end of trail, it splits into two trails which lead out to Trail 9. Sample collected on long (righthand) branch, immediately after the split Comment
  JEPS40981  Pedicularis densiflora Lewis S. Rose 1964-3-23 64013 San Mateo w of Redwood City; Emerald Lake 121 Comment
  JROH4111  Pedicularis densiflora John H. Thomas 1967-6-1 12970 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4119  Pedicularis densiflora John Hunter Thomas 1985-4-22 23550 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA117092  Pedicularis densiflora Carl B. Wolf 1927-3-2 235 San Mateo Above Searsville Lake. Comment
  SBBG32290  Pedicularis densiflora L. S. Rose 1964-3-23 San Mateo Emerald Lake, W of Redwood City 121 Comment
  UC886634  Pedicularis densiflora Lewis S. Rose 1939-4-12 39061 San Mateo Crystal Springs Lake 152 Comment
  CAS-BOT-BC266664  Pedicularis dudleyi D. D. Davis No date on label s.n. San Mateo Santa Cruz Peninsula. Iverson's Peter's Creek Comment
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Jun 13 2020
  CAS-BOT-BC266666  Pedicularis dudleyi J. H. Thomas 1961-6-20 9550 San Mateo Portola State Park, near junction of Peters and Pescadero Creeks, from near rangers station to the camp grounds 152 Comment
  CAS-BOT-BC7097  Pedicularis dudleyi Adolph Daniel Edward Elmer 1903-6-1 4289 San Mateo Pescadero Creek - Iverson's Place Comment
  UCSC003377  Pelargonium grossularioides Randall Morgan 2001-5-5 3725 San Mateo south of Franklin Point, San Mateo County Comment
  CAS-BOT-BC207028  Pelargonium vitifolium Roland M. Block 1894-5-1 s.n. San Mateo King's Mountain Comment
  JEPS23863  Pelargonium vitifolium J. H. Thomas 1959-8-16 8066 San Mateo about 2 mi n Pigeon Point (along the coast) 15 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
  CAS-BOT-BC327979  Pentachaeta alsinoides John H. Thomas 1958-5-10 7155 San Mateo Jasper Ridge, about 5 mi SW of Palo Alto. 182 Comment
  SJSU12769  Pentachaeta bellidiflora S. C. Sommers 1986-5-2 San Mateo W side Edgewood Park, W of Hwy 280 off Edgewood Rd, Redwood City Comment
  CAS-BOT-BC77008  Pentagramma triangularis subsp. triangularis Margaret Barry 1937-5-8 84 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC77012  Pentagramma triangularis subsp. triangularis David D. Keck 1932-2-12 1365 San Mateo La Honda Road, east slope of Coast Range above Searsville Lake. 304 Comment
  JROH109  Pentagramma triangularis subsp. triangularis John H. Thomas 1968-3-17 14194 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UCSB25635  Pentagramma triangularis subsp. triangularis Masero, Ann 1967-3-21 San Mateo Butano Creek, 3.3 miles east of junction of Cloverdale Road and Canyon Road 106 Comment
  CAS-BOT-BC423362  Peritoma serrulata Mrs. Brandegee No date on label s.n. San Mateo Montera [Montara] Comment
  CAS-BOT-BC389692  Persicaria maculosa Mary K. Wicksten 1972-6-9 78 San Mateo San Francisquito Creek Comment
  CAS-BOT-BC419390  Persicaria punctata Ira L. Wiggins 1974-10-27 22132 San Mateo Bed of San Francisquito Creek, along line between Palo Alto and Mrnlo [Menlo] Park and between San Mateo and Santa Clara Counties, near Pope Street bridge Comment
  CAS-BOT-BC330251  Petasites frigidus var. palmatus John Thomas Howell 1924-2-23 269 San Mateo King Mountain 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
  JROH1164  Petasites frigidus var. palmatus Carol Zabel 1989-8-11 27 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek near confluence with Bear Creek Comment
  RSA116726  Petasites palmatus L. R. Abrams 1904-3-7 s.n. San Mateo Bear Gulch. Santa Cruz Mountain Peninsula. Comment
  RSA152207  Phacelia californica John H. Thomas 1961-5-7 9313 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  UC131512  Phacelia distans C. F. Baker 1902-4-4 442 San Mateo Crystal Springs Lake Comment
  POM128434  Phacelia distans L. R. Abrams 1902-4-13 2345 San Mateo San Mateo Canyon. Comment
  RSA128863  Phacelia divaricata W. R. Dudley 1895-6-8 s.n. San Mateo Along the road near the alpine school house, Black Mt. Comment
  UC735097  Phacelia imbricata subsp. imbricata Lincoln Constance 1946-6-7 3078 San Mateo Skyline Drive about 5 mi se Portola 457 Comment
  CDA34191  Phacelia malvifolia D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .172 San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. Comment
  JROH2760  Phacelia nemoralis subsp. nemoralis John H. Thomas 1967-5-31 12939 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC258932  Phalaris aquatica J. H. Thomas 1963-8-4 10233 San Mateo About 2.5 miles inland from San Gregorio along the highway Comment
  CAS-BOT-BC259003  Phalaris californica Ira L. Wiggins 1928-4-22 2943 San Mateo Moss Beach Comment
  JEPS101195  Phalaris californica Dean W. Taylor 1987-8-20 9313 San Mateo Cascade Ranch State Park, between Whitehorse Creek and Cascade Creek, at crest of north facing hil 188 Comment
  SEINET10657422  Phalaris minor Adolph D. E. Elmer Elmer 4427 San Mateo Crystal Springs Lake Comment
  JROH4289  Phoradendron serotinum subsp. tomentosum John H. Thomas 1960-3-1 8536 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH4293  Phoradendron serotinum subsp. tomentosum John H. Thomas 1975-1-14 17674 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD138387  Phyllospadix torreyi R. V. Parker 1953-4-15 s.n. San Mateo Moss Beach. Comment
  JROH3729  Physocarpus capitatus John Hunter Thomas 1981-4-5 20281 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  CDA28804  Pickeringia montana D. G. Kelch 2009-6-9 9 .39 San Mateo Santa Cruz Mtns.; King s Mtn. Rd. N of Summit Springs. Comment
  CAS-BOT-BC206938  Pickeringia montana var. montana Volney Rattan 1882-5-1 s.n. San Mateo Belmont Comment
  CAS-BOT-BC206941  Pickeringia montana var. montana Josephine D. Randall 1907-6-29 218 San Mateo King's Mt. Road - Santa Cruz Peninsula Comment
  JROH2202  Pickeringia montana var. montana John H. Thomas 1975-6-5 17937 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack Comment
  JROH2203  Pickeringia montana var. montana John H. Thomas 1976-5-26 18147 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Shack Comment
  RSA472045  Picris echioides E. A. Purer 1933-8-13 5417 San Mateo Belmont Comment
  UC400305  Pinus radiata none San Mateo Pescadero Coast Comment
  CAS-BOT-BC158326  Piperia Peter Rubtzoff; Randall Morgan 1987-8-28 9847 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  JEPS125908  Pittosporum crassifolium D. W. Taylor 2002-3-30 17961 San Mateo Sea bluff on S edge outlet of Martini Creek, Montara State Beach Comment
  CAS-BOT-BC135929  Pittosporum tenuifolium Elizabeth McClintock; Paul Reeberg 1989-8-31 s.n. San Mateo Willow Pond - San Bruno Mountains Comment
  RSA22135  Plagiobothrys chorisianus Alice Eastwood, Howell 1938-6-26 s.n. San Mateo Pigeon Point. Comment
  UC579690  Plagiobothrys chorisianus H. S. Yates 1935-5-8 5216 San Mateo 2 mi s Pescadero; Santa Cruz Quad. 60 Comment
  CAS-BOT-BC228121  Plagiobothrys chorisianus David D. Keck 1938-5-30 4728 San Mateo Pescadero, on bluffs overlooking ocean Comment
  RSA128816  Plagiobothrys chorisianus Roxana S. Ferris 1920-4-23 s.n. San Mateo Santa Cruz Mountain peninsula, on abandoned road above north fork of Peters Creek 640 Comment
  SEINET13365367  Plagiobothrys chorisianus var. chorisianus D. W. Taylor 2008-4-16 20181 San Mateo Half Moon Bay, bluff at the far W end of Redondo Beach Drive. 15 Comment
  JROH1424  Plagiobothrys nothofulvus John H. Thomas 1969-4-12 14879 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  SD39269  Plagiobothrys undulatus Edith A. Purer 1939-6-1 7928 B San Mateo Sandy soil, Ano Nuevo Point Comment
  UCSC003378  Plantago elongata Randall Morgan 2001-5-5 3725 San Mateo south of Franklin Point, San Mateo County Comment
  OBI58721  Plantago erecta Lewis S. Rose 1966-5-2 66033 San Mateo Emerald lake, W of Redwood City 91 Comment
  POM283960  Plantago erecta Lyman Benson 1931-4-26 2756 San Mateo Behind Stanford University. Santa Cruz mtn range, Corte Madera Creek. 213 Comment
  UCD124478  Plantago erecta Lewis S. Rose 1965-5-3 65056 San Mateo San Bruno Mountain, north end. 182 Comment
  RSA176677  Plantago lanceolata John H. Thomas 1949-4-6 273 San Mateo 4 miles S of Daly city Comment
  UC1192027  Plantago major Malcolm A. Nobs and S. Galen Smith 1949-8-26 1584 San Mateo about 1 mi s Half Moon Bay Comment
  SD39917  Plantago maritima Edith A. Purer 1933-7-27 5364 San Mateo Near Pigeon Point. Comment
  RSA19306  Plantago maritima L. S. Rose 1937-9-5 37645 San Mateo Mussel Rocks 61 Comment
  JEPS7154  Plantago maritima var. californica James G. Daly 1934-1 478 San Mateo mouth of San Gregorio Creek San Gregorio Creek Comment
  CAS-BOT-BC92012  Platystemon californicus A. D. E. Elmer 1903-6-1 4853 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC92013  Platystemon californicus A. D. E. Elmer 1903-6-1 4853 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC92017  Platystemon californicus Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon. Comment
  JROH3105  Platystemon californicus H. J. Dengler 1972-4-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; E. of Searsville rocks, and above largest Douglas Fir on Jasper Ridge Comment
  POM149360  Platystemon californicus var. californicus A. D. E. Elmer 1903-06 4853 San Mateo Crystal Springs Lake. Comment
  JROH4241  Plectritis congesta subsp. brachystemon H. J. Dengler 1972-4-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By trail N.E.J.R. to S.F. Creek, at point where deer trail joins trail to creek, ca. 20' below junco nesting site. Comment
  SEINET10931001 Image available Plectritis congesta subsp. nitida A. Arthur Heller 1907-5-28 Heller 8578 San Mateo Above Crystal Springs on the Half Moon Bay road. Comment
  JROH5951  Plectritis macrocera John Rawlings 2017-4-9 2017 San Mateo Jasper Ridge Biological Preserve, Stanford University; path to Global Change site south of Field Station visitor parking lot. 117 Comment
  UC766305  Plectritis macrocera R. F. Hoover 1941-4-23 4908 San Mateo Redwood City Comment
  UC204163  Pleuricospora fimbriolata A. D. E. Elmer Jun 1903 5075 San Mateo on Big Basin trail, Iverson's Place Comment
  UC1190045  Pleuropogon californicus J. I. McMurphy 1906-5-8 San Mateo road near head of Crystal Springs Lakes (by road from Woodside to Byrnes Store) Comment
  CAS-BOT-BC260960  Pleuropogon californicus var. californicus J. I. McMurphy 1906-5-8 s.n. San Mateo Pond near head of Crystal Sprins Laks on road from Woodside to Byrne's Store, Santa Cruz Mountain Peninsula Comment
  UCD92188  Poa August L. Hormay 1932-5-29 s.n. San Mateo Bay shore, San Bruno. Comment
  UCD163746  Poa annua Peter Rubtzoff 1988-5-3 9911 San Mateo San Bruno Mountain, 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road in the northwest part of the 'Saddle' area, east of Saddle Trail Junction. Comment
  CAS-BOT-BC254906  Poa bulbosa W. L. Plummer 1963-3-27 s.n. San Mateo Alvin Peters property, Skyline Boulevard, Redwood City Comment
  SJSU7645  Poa kelloggii T. J. Sammis 1974-5-16 San Mateo redwood forest between Pescadero Road & Pescadero Creek c. 1 mi W of Loma Mar Comment
  CAS-BOT-BC173840  Poa pratensis Peter Rubtzoff 1976-5-22 8544 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC247424  Poa pratensis W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of hill at Sneath's Ranch, near Millbrae Comment
  RSA120384  Poa secunda Roxana S. Ferris 1921-5-20 2174 San Mateo Santa Cruz Mountain Peninsula; road over divide from Alpine Creek and Pescadero Creek 305 Comment
  CAS-BOT-BC243110  Poa secunda subsp. secunda David D. Keck 1933-5-11 2311 San Mateo Crystal Springs Lake, about E side Comment
  CAS-BOT-BC243123  Poa secunda subsp. secunda L. R. A. 1902-5-4 2408 San Mateo Woodside Comment
  CAS-BOT-BC243125  Poa secunda subsp. secunda Roxana S. Ferris 1921-3-20 2174 San Mateo Road over divide from Alpine Creek to Pescadero Creek 304 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
  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
  JROH2866  Pogogyne serpylloides John Hunter Thomas 1985-5-7 23641 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD73212  Pogogyne serpylloides Darley F. Howe 1969-6-10 4642 San Mateo 18.5 miles north of San Mateo-Santa Cruz county line on Highway 1. Comment
  UC203050  Polemonium carneum A. D. E. Elmer July, 1903 4771 San Mateo Pilarcitos Stone Dam Comment
  JROH5584  Polygala californica John Rawlings 2013-5-28 1190 San Mateo Jasper Ridge Biological Preserve, Stanford University; in the vicinity of an abandoned camper shell near a small drainage on north side of main ridge 100 Comment
  RSA112464  Polygala californica W. R. Dudley 1895-6-6 s.n. San Mateo Santa Cruz Mountains: Pescadero Creek Comment
  CAS-BOT-BC413945  Polygonum aviculare subsp. aviculare E. M. Zeile 1921-7-31 s.n. San Mateo Salada Comment
  CAS-BOT-BC414106  Polygonum aviculare subsp. aviculare J. H. Thomas 1960-6-25 8784 A San Mateo Redwood City. Near Main and Stambaugh sts. Comment
  JROH3259  Polygonum aviculare subsp. depressum John H. Thomas 1974-8-3 17498 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS81636  Polygonum aviculare subsp. depressum J. C. Hickman 1981-7-21 1003 San Mateo Ano Nuevo Reserve; near center Comment
  CAS-BOT-BC109236  Polygonum paronychia John H. Thomas 1954-6-11 4285 San Mateo About 0.25 mile north of Pigeon Point Light House along low coastal bluffs. Comment
  CAS-BOT-BC109243  Polygonum paronychia Robert Robertson 1954-5-1 120 San Mateo Pebble Beach. 4 Comment
  CAS-BOT-BC109245  Polygonum paronychia David D. Keck 1931-10-5 1288 San Mateo 1 mile north of Salada Beach. 200 m. from ocean. Comment
  RSA3888  Polygonum paronychia I. L. Wiggins 1929-7-4 3795 San Mateo Pescadero Beach Comment
  UCR240610  Polygonum paronychia T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3526 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  RSA120434  Polygonum punctatum Roxana S. Ferris 1924-10-6 4093 San Mateo Searville Lake on Portola Hwy. Comment
  CAS-BOT-BC76904  Polypodium californicum Roxana S. Ferris 1921-4-7 2133 San Mateo Santa Cruz Mountain Peninsula - San Bruno Mt. 213 Comment
  SBBG32442  Polypodium californicum L. S. Rose 1964-2-6 64001 San Mateo King's Mtn 609 Comment
  JEPS48462  Polypogon australis James G. Daly 1934-1 444 San Mateo sw La Honda (n-facing slopes in lower San Gregorio Canyon); lower San Gregorio Canyon Comment
  JROH5677  Polypogon interruptus John Rawlings 2014-5-28 1249 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Up-stream edge of low flow crossing of San Francisquito Creek. 81 Comment
  RSA187461  Polypogon monspeliensis John H. Thomas 1965-12-19 11458 San Mateo Jasper Ridge Biological Experimental Area, 5 miles SW of Palo. Comment
  SD39924  Polypogon monspeliensis Edith A. Purer 1933-7-27 5370 San Mateo Sand dunes, Pigeon Point Comment
  JROH5544  Polypogon viridis John Rawlings 2012-5-23 1111 San Mateo Jasper Ridge Biological Preserve, Stanford University. 106 Comment
  CAS-BOT-BC6608  Polystichum dudleyi W. R. Dudley 1903-5-2 s.n. San Mateo Near bridge, Peter's Creek, Santa Cruz Mts. Comment
  CAS-BOT-BC72225  Polystichum dudleyi George Oberlander 1950-7-15 1026 San Mateo Pilarcitos Canyon Comment
  SEINET10665573 Image available Polystichum dudleyi William R. Dudley 1903-5-2 Dudley s.n. San Mateo Near bridge. Peters Creek. Santa Cruz Mts. Comment
  CAS-BOT-BC76605  Polystichum munitum Margaret Barry 1938-5-29 267 San Mateo Corte Madera Creek, near Coal Mine Ridge. Comment
  JROH53  Polystichum munitum Lawrence J. Winship 1974-11-2 7 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC76646  Polystichum munitum Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain - North Power Line Ridge area. Comment
  RSA157754  Polystichum munitum I. L. Wiggins 1925-5-24 1731 San Mateo Along county road from Pescadero to Pebble Beach along rich swamp land just before coming to the artichoke lands of the American Produce Co. Comment
  CAS-BOT-BC445246  Portulaca oleracea Fay Gilbert 1920-6-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Redwood City Comment
  JROH3358  Portulaca oleracea John H. Thomas 1976-10-16 18404 San Mateo Jasper Ridge Biological Preserve, Stanford University. Now dry delta in Searsville Lake at the mouth of Corte de Madera Creek 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
  JROH5514  Potamogeton illinoensis John Hunter Thomas 1981-7-12 20711 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS42973  Potamogeton nodosus W. L. Jepson 1910-8-18 4165 San Mateo White House Creek 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-BC141935  Potentilla anserina subsp. pacifica Robert Robertson 1954-4-17 85 San Mateo By stream near coast north of Moss Beach (Montara) 4 Comment
  UC114491  Potentilla hickmanii Katharine Brandegee 1905-6-20 San Mateo near Halfmoon Bay (Moss Beach); near Halfmoon Bay, Moss Beach Comment
  CAS-BOT-BC516357  Prosartes hookeri Ira L. Wiggins 1928-4-14 2912 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC517391  Prosartes smithii W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Peninsula,La Honda Road 512 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
  CAS-BOT-BC158174  Prunus emarginata Phillip C. Wheeler 1965-4-27 s.n. San Mateo San Bruno Mountain. Buckeye Canyon Comment
  CAS-BOT-BC158176  Prunus emarginata Peter H. Raven 1950-4-16 1810 San Mateo Above [Visitation] Visitacion Valley, San Bruno Mts. 182 Comment
  CAS-BOT-BC154497  Prunus ilicifolia A. D. E. Elmer 1903-7-1 4773 San Mateo Pilarcitos Stone Dam Comment
  JROH3748  Prunus ilicifolia subsp. ilicifolia John Hunter Thomas 1981-7-24 20729 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC154654  Prunus subcordata Margaret A. Barry 1938-4-21 248 San Mateo North slope on Los Trancos Creek near Coal Mine Ridge Comment
  CAS-BOT-BC154656  Prunus subcordata Le Roy Abrams 1901-3-1 1168 San Mateo Portola, Los Trancos Creek Comment
  SEINET11917542  Prunus subcordata W. R. Dudley 1904-4-7 17 San Mateo Los Fracos Creek, Santa Cruz Mts Comment
  CAS-BOT-BC156358  Prunus virginiana var. demissa J. I. McMurphy 1906-4-28 16 San Mateo [Corte de] Corte Madera Creek, Santa Cruz Mts. 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
  CAS-BOT-BC356859  Pseudognaphalium californicum John H. Thomas 1961-5-7 9303 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JEPS27346  Pseudognaphalium californicum Rimo Bacigalupi with L. Heckard and J. Roof 1961-4-24 7606 San Mateo just n San Bruno Mt. (summit of divide between Colma Canyon and Guadalupi Valley) 205 Comment
  JROH755  Pseudognaphalium californicum John H. Thomas 1961-6-7 9534 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH760  Pseudognaphalium californicum D. E. Breedlove 1971-5-31 19386 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CAS-BOT-BC356853  Pseudognaphalium californicum Walter Knight 1963-10-7 324 San Mateo San Bruno Mountain. Cow Trough Ravine Comment
  CAS-BOT-BC356855  Pseudognaphalium californicum George Oberlander 1949-8-20 361 San Mateo San Francisco Watershed Reserve. Sweeney Ridge Comment
  CAS-BOT-BC357115  Pseudognaphalium luteoalbum John H. Thomas 1963-5-8 10064 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC357119  Pseudognaphalium luteoalbum John Thomas Howell 1935-1-13 12578 San Mateo Lake San Andreas Comment
  CAS-BOT-BC357120  Pseudognaphalium luteoalbum John Thomas Howell 1935-1-13 12578 San Mateo Lake San Andreas Comment
  CAS-BOT-BC357127  Pseudognaphalium luteoalbum Philip Wheeler 1965-6-13 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  CAS-BOT-BC413801  Pseudognaphalium luteoalbum Robert I. Gilbreath 1977-8-16 105 San Mateo Hillsborough. Cultivated garden area at 366 Alberta Way 160 Comment
  JROH773  Pseudognaphalium luteoalbum J. H. Thomas 1958-12-21 7510 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  HSC5703  Pseudognaphalium stramineum L. S. Rose 1966-8-6 66079 San Mateo San Bruno Mtns.; Colma Canyon 122 Comment
  CAS-BOT-BC85902  Pseudotsuga menziesii George Oberlander 1950-7-15 1100 San Mateo San Francisco Watershed Reserve, Cahill Ridge Comment
  CAS-BOT-BC85907  Pseudotsuga menziesii W. R. Dudley 1894-3-24 s.n. San Mateo Santa Cruz Mountain Peninsula, bank of Pescadero Cr. Comment
  NY63873  Pseudotsuga menziesii var. menziesii L. S. Rose 1955-9-19 55178 San Mateo Skyline Boulevard, 7 miles west of Saratoga 685.8 Comment
  CAS-BOT-BC362021  Psilocarphus tenellus Elizabeth McClintock 1965-4-11 s.n. San Mateo San Bruno Mountain. Crocker Hills. Near Guadalupe Road Comment
  CAS-BOT-BC421316  Pterostegia drymarioides John H. Thomas 1965-4-29 10625 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC421314  Pterostegia drymarioides W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula. By grade south slope Montara Mts. Comment
  UCSC007774  Pterostegia drymarioides Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  JROH3755  Pyracantha fortuneana John H. Thomas 1967-6-1 12975 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC460837  Pyrola aphylla A. D. E. Elmer 1903-6-1 4297 San Mateo Pescadero Comment
  POM88668  Pyrrocoma racemosa L. R. Abrams 1901-09 2211 San Mateo Cooley Landing. Comment
  JROH2532  Quercus John H. Thomas 1974-4-24 17183 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2536  Quercus X jolonensis John Gray 1916-10-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC104277  Quercus X morehus W. R. Dudley 1904-4-10 s.n. San Mateo Santa Cruz Mountain Peninsula, Goat Ranch Road near Alpine Road - Black Mt. Comment
  CAS-BOT-BC61706  Quercus agrifolia Elizabeth McClintock; Walter Knight; Irja Knight 1964-9-11 s.n. San Mateo Point San Bruno. On bluff near shoreline, San Bruno Mountain Comment
  UCD45091  Quercus agrifolia Roman Gankin; Ken Himes, and Toni Corelli 2003-8-23 1401 San Mateo About 0.4 mi above Pilarcitos Lake Dam on main road to '5 points' crossroads on downside edge of roadway. Comment
  JEPS121484  Quercus agrifolia var. agrifolia Adam C. Schneider with C. Matt Guilliams 2013-2-2 7 San Mateo Crystal Springs Reservoir Comment
  JROH2462  Quercus agrifolia var. agrifolia John H. Thomas 1974-6-30 17461 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2466  Quercus berberidifolia John Rawlings 2007-12-26 1065 San Mateo Jasper Ridge Biological Preserve, Stanford University; a few yards uphill of Trail I in serpentine woodland below lost serpentine prairie 85 Comment
  CAS-BOT-BC62308  Quercus chrysolepis Albert Wilson 1936-8-16 s.n. San Mateo Santa Cruz Mts. above Pescadero Comment
  JROH2472  Quercus douglasii John H. Thomas 1977-4-28 18566 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2476  Quercus douglasii John Hunter Thomas 1988-4-6 24374 San Mateo Jasper Ridge Biological Preserve, Stanford University; roadside below dam. Comment
  SEINET12034334  Quercus douglasii Unknown 1929-1 7302 San Mateo Kings Mtn Comment
  CAS-BOT-BC94276  Quercus durata John H. Thomas 1969-10-19 15486 San Mateo near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  SEINET13953265 Image available Quercus durata Lewis S. Rose 1950-1 50136 San Mateo Emerald Lake region; hills w. of Redwood City; alt. ca. 800 ft. 244 Comment
  JROH2486  Quercus durata var. durata John H. Thomas 1974-6-30 17462 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC105398  Quercus kelloggii Ira L. Wiggins 1925-4-1 1664 San Mateo On Kings Mountain Road three fourths of a mile above Woodside in the old cut over redwood (S. sempervirens) belt. Comment
  JROH2499  Quercus kelloggii K. Hoffough 1929-4-27 277 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
  POM270203  Quercus kelloggii Lyman Benson 1930-5-3 2116 San Mateo La Honda Grade, above Woodside, Santa Cruz mt. range, San Francisco Bay watershed. 457 Comment
  CAS-BOT-BC62888  Quercus lobata W. R. Dudley 1901-5-4 s.n. San Mateo Coal Mine Canyon Comment
  CAS-BOT-BC134794  Quercus wislizeni H. L. Mason 1929-12-1 s.n. San Mateo Swanton Comment
  UC1084409  Quercus wislizeni G. Thomas Robbins 1937-4-11 112 San Mateo Wooded hillside above Redwood City Comment
  JROH2529  Quercus wislizeni var. frutescens Toni Corelli 2007-1-31 337 b San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 9 140 Comment
  CAS-BOT-BC362544  Rafinesquia californica Fred Hemphill 1973-5-14 803 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC362546  Rafinesquia californica Fred Hemphill 1973-5-14 822 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH1200  Rafinesquia californica John H. Thomas 1966-4-29 11587 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH3475  Ranunculus californicus Toni Corelli 2005-4-13 284 San Mateo Jasper Ridge Biological Preserve, Stanford University; east of Trail 10 178 Comment
  UC665800  Ranunculus californicus Ira L. Wiggins 1941-4-17 9719 San Mateo near junction of road to California Sanitarium and Woodside-Half Moon Bay road Comment
  RSA100978  Ranunculus californicus G. Oberlander 1949-4-2 20 San Mateo Top of Sweeney ridge, San Francisco Watershed Reserve Comment
  RSA399415  Ranunculus californicus J. Doty 1969-3-26 600 San Mateo 100 yards E of jct Hwy 35 and 92, near summit of Caost Range, San Francisco Peninsula. Comment
  CAS-BOT-BC378542  Ranunculus californicus var. californicus Ira L. Wiggins 1928-4-14 2903 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC378550  Ranunculus californicus var. californicus Paul F. Covel 1937-4-15 644 San Mateo Hgwy no. Half Moon Bay Comment
  JROH3485  Ranunculus hebecarpus John Hunter Thomas 1983-4-21 21638 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3494  Ranunculus hebecarpus John Rawlings 2013-4-9 1158 San Mateo Jasper Ridge Biological Preserve, Stanford University; verge of Trail 11 through chaparral 144 Comment
  POM150090  Ranunculus hebecarpus L. R. Abrams 1901-03 1164 San Mateo San Mateo Park Comment
  CAS-BOT-BC83422  Ranunculus lobbii E. A. McGregor 1908-3-9 s.n. San Mateo Coal Mine Ridge. Comment
  CAS-BOT-BC83423  Ranunculus lobbii J McMurphy 1904-1-1 s.n. San Mateo Coal Mine Ridge. Comment
  CAS-BOT-BC83427  Ranunculus lobbii W. R. Dudley 1964-4-22 s.n. San Mateo Santa Cruz Mountain Peninsula. Corte Madera Creek. Along New Grade Road. Comment
  RSA120998  Ranunculus muricatus A. D. E. Elmer 1903-06 5 ++2 San Mateo San Pedro. Comment
  UC204177  Ranunculus orthorhynchus var. bloomeri A. D. E. Elmer June, 1903 4665 San Mateo San Pedro Comment
  POM268819  Ranunculus repens W. R. Dudley 1906-10-12 s.n. San Mateo Pond 15 Comment
  CAS-BOT-BC74341  Raphanus sativus Javier Penalosa 1963-2-23 2663 San Mateo San Bruno Mountain. Ravine south of Crocker Avenue. 213 Comment
  UCD115167  Raphanus sativus L. Angst 1917-4-21 14 San Mateo south of San Francisco. Comment
  JROH5825  Rhamnus alaternus John Rawlings 2016-2-1 1662 San Mateo Jasper Ridge Biological Preserve, Stanford University; upper Trail 10 180 Comment
  UC1071558  Rhamnus californica T. Tyrrell 1928-9-26 9 San Mateo 2 mi s San Gregorio; Santa Cruz Quad. 91 Comment
  CAS-BOT-BC55891  Rhamnus crocea Carl B. Wolf 1927-8-7 717 San Mateo At Schenkel's Camp back of Stanford University Campus. Los Trancos Creek Comment
  JROH3556  Rhamnus crocea H. L. Mason 1921-3-9 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3560  Rhamnus crocea John H. Thomas 1963-3-20 10029 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Westridge end of ridge Comment
  RSA7729  Rhamnus crocea Carl B. Wolf 1927-5-31 407 San Mateo Searsville Lake Comment
  RSA10390  Rhamnus tomentella subsp. tomentella H. A. Barker 1926-5-15 603 San Mateo King Mt. Comment
  UC1121784  Rhamnus tomentella subsp. tomentella C. M. Belshaw 1935-1-25 1459 San Mateo 2.8 mi w Woodside; Santa Cruz Quad. 457 Comment
  CAS-BOT-BC92488  Ribes aureum var. gracillimum James McMurphy 1906-4-4 s.n. San Mateo Creek above Judge Allen's, Santa Cruz Mountains. Comment
  POM141978  Ribes aureum var. tenuiflorum A. D. E. Elmer 1903-05 4514 San Mateo Portola Comment
  POM141970  Ribes californicum A. D. E. Elmer 1903-03 4683 San Mateo Portola Comment
  UC518033  Ribes californicum Lewis S. Rose 1933-6-9 33226 San Mateo Belmont Comment
  JEPS121444  Ribes californicum var. californicum Adam C. Schneider with C. Matt Guilliams 2013-2-2 8 San Mateo Crystal Springs Reservoir Comment
  CAS-BOT-BC173082  Ribes divaricatum var. pubiflorum Lewis S. Rose 1965-3-16 65008 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC173091  Ribes divaricatum var. pubiflorum George Oberlander 1949-4-9 49 San Mateo Pilarcitos Canyon Comment
  JROH2651  Ribes divaricatum var. pubiflorum A. D. E. Elmer 1903-5-1 4511 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC173465  Ribes malvaceum Marian L. Campbell 1920-5-2 s.n. San Mateo Los Altos Comment
  CAS-BOT-BC173470  Ribes malvaceum James B. Roof; Walter Knight; Irja Knight 1965-6-20 1127 San Mateo Crystal Cave Canyon Comment
  CAS-BOT-BC173477  Ribes malvaceum George Oberlander 1949-2-2 5 San Mateo Crest of Sweeney Ridge Comment
  CAS-BOT-BC173469  Ribes malvaceum Walter Knight 1964-9-14 827 San Mateo Near summit Peak Mt. Comment
  CAS-BOT-BC212828  Ribes menziesii Peter H. Raven 1952-4-6 3984 San Mateo 1 mile s. of Sharp Park Comment
  CAS-BOT-BC212841  Ribes menziesii J. H. Thomas 1949-3-29 188 San Mateo King's Mountain Comment
  UC11613  Ribes menziesii J. Burtt Davy 1895-4-21 1059 San Mateo Pilarcitos Creek Comment
  CAS-BOT-BC144601  Ribes sanguineum var. glutinosum James McMurphy 1906-3-9 s.n. San Mateo Near King's Mountain House Comment
  CAS-BOT-BC144638  Ribes sanguineum var. glutinosum D. E. Breedlove 1974-5-13 36216 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  UC306757  Ribes sanguineum var. glutinosum A. D. E. Elmer March 1903 4470 San Mateo Portola Comment
  UC676760  Ribes sanguineum var. glutinosum Reed C. Rollins 1941-2-22 2936 San Mateo about 10 mi nw Palo Alto; Coast Range 152 Comment
  UC858477  Ribes sanguineum var. glutinosum E. G. Dudley 1904-3-3 San Mateo Portola Road, bridge Santa Cruz Mountain Peninsula Comment
  RSA0019094  Ribes sanguineum var. glutinosum A. D. E. Elmer 1903-03 4470 San Mateo Portola Comment
  RSA0019106  Ribes sanguineum var. glutinosum Josephine Randall 1907-3-9 s.n. San Mateo Kings Mountain. Santa Cruz Peninsula. Comment
  POM53912  Rigiopappus leptocladus C. F. Baker 1902-5-4 754 San Mateo Woodside Comment
  UC429742  Rigiopappus leptocladus L. R. Abrams 1902-5-4 240 San Mateo Woodside Comment
  UC75100  Rigiopappus leptocladus C. F. Baker 1902-5-4 754 San Mateo Woodside Comment
  JROH2207  Robinia pseudoacacia Carol Zabel 2007-4-30 66 San Mateo Jasper Ridge Biological Preserve, Stanford University; caretaker's garden area Comment
  CAS-BOT-BC6011  Romanzoffia californica Charles Fuller Baker 1902-4-6 463 San Mateo Crystal Springs Lake Comment
  RSA159406  Romanzoffia californica John H. Thomas 1961-5-14 9369 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  UC107586  Romanzoffia californica C. F. Baker 1902-4-6 463 San Mateo Crystal Springs Lake; ; Crystal Springs Lake, San Mateo Co. Comment
  POM65642  Romanzoffia californica L. R. Abrams 1916-4-22 5582 San Mateo Pilarcitos Canyon at the little upper lake; Santa Cruz Mountain Peninsula. Comment
  SJSU16041  Romulea rosea var. australis John Rawlings, Toni Corelli 2016-4-29 1760 San Mateo Cascade Creek Trail, Ano Nuevo State Park 21 Comment
  CHSC59705  Rorippa nasturtium-aquaticum Jan M. Karaz 1979-5-28 82 San Mateo 2.5 mi west of Hwy 280 toward San Francisco Bay on Farm Hill Blvd, along Stulsaft Creek in Stulsaft Park. 3 Comment
  SEINET5570005  Rorippa nasturtium-aquaticum H. S. Gentry 1931-1 100 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  JROH3768  Rosa John Hunter Thomas 1979-6-12 19595 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near stream below dam Comment
  CAS-BOT-BC147623  Rosa californica Alice B. Wright 1919-8-1 s.n. San Mateo Granada Comment
  CAS-BOT-BC147629  Rosa californica Walter Knight; Irja Knight 1967-6-6 2068 San Mateo Overlooking San Francisco Bay. Point San Bruno Comment
  SEINET11917917  Rosa californica J. C. McMurphy 1906-1 64 &35 San Mateo Santa Cruz Mts & Palo Alto Comment
  CAS-BOT-BC146703  Rosa gymnocarpa Ira L. Wiggins 1928-4-14 2922 San Mateo Alpine Creek Road Comment
  CAS-BOT-BC5991  Rosa piscatoria Adolph Daniel Edward Elmer 1903-5-1 4923 San Mateo On the Pescadero Creek, Iverson's Place Comment
  UC481582  Rubus parviflorus H. F. Copeland 1920-5-18 169 San Mateo Kings Mt. Comment
  POM139641  Rubus parviflorus var. velutinus A. D. E. Elmer 1903-06 4294 San Mateo Alpine School House. Comment
  UC202759  Rubus spectabilis A. D. E. Elmer May 1903 4788 San Mateo Spanishtown [Half Moon Bay] Comment
  CAS-BOT-BC156773  Rubus spectabilis Walter Knight; Irja Knight 1964-5-30 613 San Mateo Colma Creek between Indian Head Rock and the Eucalyptus forest Comment
  CAS-BOT-BC157074  Rubus ursinus Walter Knight; Irja Knight 1964-5-30 595 San Mateo Colma Canyon Comment
  CAS-BOT-BC157076  Rubus ursinus L. R. Abrams 1914-10-14 5130 San Mateo At Tunitas Comment
  CAS-BOT-BC157093  Rubus ursinus W. B. Duncan 1924-5-25 s.n. San Mateo Moss Beach Comment
  CAS-BOT-BC157099  Rubus ursinus John Thomas Howell 1938-6-4 13889 San Mateo Burlingame Comment
  CAS-BOT-BC389668  Rubus ursinus M. Wicksten 1968-6-20 s.n. San Mateo Memorial Park Comment
  JROH3778  Rubus ursinus W. R. Dudley 1898-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM204330  Rubus ursinus I. L. Wiggins 1929-7-4 3775 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  UC204056  Rubus ursinus A. D. E. Elmer June, 1903 4664 San Mateo Crystal Springs Lake southern end Comment
  POM139627  Rubus vitifolius A. D. E. Elmer 1903-06 4664 San Mateo Crystal Springs Lake. Comment
  JROH3290  Rumex acetosella D. D. Davis 1903-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. West end of Searsville Ridge. Comment
  CAS-BOT-BC422076  Rumex acetosella Javier Penalosa 1963-3-30 2704 San Mateo San Bruno Mountain. North of Randolph Ave. at Hillside Blvd. in SSF. 91 Comment
  CAS-BOT-BC422093  Rumex acetosella Louis F. Pitelka 1973-6-16 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco. Comment
  UCD101053  Rumex acetosella Robert A. Norris 1984-5-9 4728 San Mateo Olivet Memorial Park Throughway, Colma. Comment
  CAS-BOT-BC421822  Rumex conglomeratus John H. Thomas 1963-5-20 10145 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC421571  Rumex crassus John H. Thomas 1963-5-20 10130 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  JROH5595  Rumex crispus John Rawlings 2013-6-13 1189 San Mateo Jasper Ridge Biological Preserve, Stanford University. West end of the shallow depression known as the Semaphore Grass Meadow. 122 Comment
  UC1101234  Rumex crispus Malcolm A. Nobs and S. Galen Smith 1949-8-25 1572 San Mateo s of Rockaway Beach Comment
  CAS-BOT-BC433358  Rumex crispus Ned Cahill 1974-6-21 349 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Comment
  CAS-BOT-BC433367  Rumex crispus A. D. E. Elmer 1903-6-1 4276 San Mateo San Mateo Comment
  UC1094021  Rumex maritimus Lewis S. Rose 1956-8-13 56143 San Mateo Princeton 3 Comment
  CAS-BOT-BC433828  Rumex pulcher Margaret Barry 1938-5-14 269 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC433999  Rumex salicifolius David D. Keck 1934-7-7 2968 San Mateo Pigeon Point Comment
  UC569569  Rumex salicifolius var. crassus James Arata Karakawa 1937-10-20 228 San Mateo near Montara Comment
  JROH2222  Rupertia physodes John Hunter Thomas 1981-5-14 20571 San Mateo Jasper Ridge Biological Preserve, Stanford University; old shack riders shack Comment
  UC279586  Ruppia maritima W. A. Setchell 1925-8-29 San Mateo Laguna de Salada Comment
  UC279599  Ruppia maritima W. A. Setchell 1925-8-29 San Mateo Laguna de Salada Comment
  JROH1712  Sagina apetala John Pelton 1962-4-25 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near the horsemen's drinking facility Comment
  JROH1713  Sagina apetala John H. Thomas 1963-4-17 10036 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of road near the "riders shack" at the Searsville end of the ridge Comment
  JROH1717  Sagina apetala John H. Thomas 1971-4-25 15779 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC103338  Salix bonplandiana Josephine D. Randall 1908-3-28 s.n. San Mateo Kings Mt. Comment
  OBI9814  Salix lasiandra Lewis S. Rose 1961-2-16 61004 San Mateo 3 mi N of La Honda 335 Comment
  JROH3875  Salix lasiandra var. lasiandra John H. Thomas 1975-5-2 17854 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC107129  Salix lasiolepis A. D. E. Elmer 1903-3-1 4875 San Mateo Searsville Lake Comment
  CAS-BOT-BC107133  Salix lasiolepis Peter H. Raven 1964-2-16 18742 San Mateo Just south of Lake San Andreas Comment
  CAS-BOT-BC107139  Salix lasiolepis W. R. Dudley 1904-3-7 68 San Mateo Bear Gulch, Santa Cruz Mt. - Santa Cruz Peninsula 152 Comment
  CAS-BOT-BC176136  Salix lasiolepis Peter Rubtzoff 1976-3-14 8447 A San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  JROH3865  Salix lasiolepis John Hunter Thomas 1983-4-5 21330 San Mateo Jasper Ridge Biological Preserve, Stanford University. Low-flow crossing Comment
  LA208768  Salix lasiolepis David D. Keck; 1932-1-24 1356 San Mateo Portola 150.0 Comment
  RSA176658  Salix lasiolepis Peter H. Raven 1964-2-16 18742 San Mateo Just south of Lake San Andreas. Comment
  RSA178596  Salix lasiolepis L. R. Abrams 1915-3-13 5161 San Mateo Near jct of San Francisquito and Los Trancos creeks. About 2 miles from Stanford University. Comment
  UCR279843  Salix lasiolepis Peter Rubtzoff 1976-3-14 8445 San Mateo San Francisco Bay Region, San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction; upper part of East Fork Colma Creek Canyon 220 Comment
  POM281343  Salix lasiolepis Lyman D. Benson 1931-1-25 2577 San Mateo Near the Skyline Blvd. 5 miles S of La Honda Grade. 366 Comment
  CAS-BOT-BC108256  Salix lasiolepis var. bigelovii Peter H. Raven 1964-9-13 19673 San Mateo San Gregorio 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-BC124479  Salix lasiolepis var. lasiolepis Walter Knight; Irja Knight 1987-10-16 6070 San Mateo San Bruno Mt., 100 yds from corner of Hillside Blvd. and Kearney St. Comment
  RSA184900  Salix lucida subsp. lasiandra L. S. Rose 1965-3-16 65007 San Mateo Searsville Lake. 122 Comment
  CAS-BOT-BC129071  Salix scouleriana W. R. Dudley 1896-4-17 s.n. San Mateo By trail from Haladay place to summit La Honda Rd. - Santa Cruz Peninsula Comment
  CAS-BOT-BC126481  Salix sitchensis H. A. Dutton 1899-10-15 s.n. San Mateo Above Byrne's store, along road from Crystal Springs to Half Moon Bay Comment
  CAS-BOT-BC126492  Salix sitchensis Lewis S. Rose 1958-3-19 58010 male, 58011 female San Mateo Princeton 6 Comment
  CAS-BOT-BC126508  Salix sitchensis A. D. E. Elmer 1903-5-1 4917 San Mateo Portola Comment
  CAS-BOT-BC126512  Salix sitchensis A. D. E. Elmer 1903-6-1 4786 San Mateo Lake San Andreas Comment
  CAS-BOT-BC126521  Salix sitchensis W. R. Dudley 1897-4-19 s.n. San Mateo Bank of Pescadero Creek below Peters Creek Comment
  CDA20077  Salsola soda W. Shek 2002-10-29 PDR 065875 San Mateo San Francisco Bay Area; Rangeland at 3517 Haven Ave, Menlo Park. 2 Comment
  CAS-BOT-BC180793  Salsola soda John H. Thomas 1968-12-7 14860 San Mateo Western end of Dumbarton Bridge Comment
  CAS-BOT-BC180795  Salsola soda John H. Thomas 1974-10-6 17615 San Mateo Palo Alto Yacht Harbor near airport. Altitude about sea level. Comment
  RSA681662  Salvia apiana Annuschka Deb 1989-8-18 s.n. San Mateo YBN [Yerba Buena Nursery] Demonstration Garden, Woodside Comment
  RSA681665  Salvia clevelandii Annuschka Deb 1989-7-19 313 San Mateo Yerba Buena Herbarium Stock Comment
  UC1046499  Salvia spathacea R. Bacigalupi, L. Constance, Ritchie and Sarah Bell 1951-3-25 3204 San Mateo near San Francisco (Colma Canyon); Colma Canyon 137 Comment
  UC306578  Salvia spathacea A. D. E. Elmer May 1903 4440 San Mateo Colma Comment
  RSA51285  Salvia spathacea Peter H. Raven 1950-4-16 1787 San Mateo Colma Canyon, San Bruno Mountains. 183 Comment
  UC416705  Salvia spathacea Franklin P. Nutting 1892-1 San Mateo Comment
  CAS-BOT-BC246021  Sambucus nigra subsp. caerulea Phillip C. Wheeler 1965-5-12 s.n. San Mateo Ravine at Sierra Point, San Bruno Mountain Comment
  JROH1669  Sambucus nigra subsp. caerulea John H. Thomas 1963-6-23 10171 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC236453  Sambucus racemosa subsp. racemosa Walter Knight; Walter Knight 1963-6-24 s.n. San Mateo Quarry 4, San Bruno Mountain Comment
  CAS-BOT-BC236455  Sambucus racemosa subsp. racemosa James B. Roof 1966-3-27 s.n. San Mateo Power Line Ridge, San Bruno Mountain Comment
  UC1123153  Sanicula arctopoides H. S. Yates 1935-2-3 5012 San Mateo 1/2 mi se of Pigeon Point 30 Comment
  CAS-BOT-BC223320  Sanicula bipinnatifida Ned Cahill 1974-4-30 215 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC223327  Sanicula bipinnatifida John H. Thomas 1958-3-19 7067 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  SJSU1080  Sanicula bipinnatifida C. W. Sharsmith 1951-4-6 5820 San Mateo Woodside Hills c. 3 mi W of Woodside 182 Comment
  CAS-BOT-BC223319  Sanicula bipinnatifida Elizabeth McClintock; Philip Wheeler 1967-5-14 s.n. San Mateo San Bruno Mountain. East side of mountain, above Harold Ave., Brisbane Comment
  UCD127932  Sanicula bipinnatifida R. E. Dengler 1960-4-14 33 San Mateo Jasper Ridge, Stanford Biological Reserve. 121 Comment
  JROH335  Sanicula crassicaulis John H. Thomas 1973-4-14 16552 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA191945  Sanicula crassicaulis R. F. Thorne, P. Everett 1963-6-9 32242 San Mateo On top of San Bruno Mountain. 335 Comment
  UC1601281  Satureja douglasii Ira L. Wiggins 1929-7-4 3778 San Mateo 4 mi w La Honda (on hill road to Pescadero Beach) Comment
  POM274844  Saxifraga californica Lyman Benson 1930-3-31 2025 San Mateo Stanford University. 122 Comment
  RSA134131  Scandix pecten-veneris John H. Thomas 1955-4-6 4830 San Mateo Disturbed ground along San Francisco Bay, about 1 mi. SE of Broadway, Burlingame. 5 Comment
  CAS-BOT-BC283615  Schedonorus pratensis Elizabeth McClintock; Paul Reeberg 1989-5-30 s.n. San Mateo San Bruno Mountains. In a seep above Lipman School 60 Comment
  CAS-BOT-BC218936  Schinus molle John H. Thomas 1960-6-25 8788 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street 7 Comment
  CAS-BOT-BC111414  Schoenoplectus acutus var. occidentalis Elizabeth McClintock; P. Reeberg 1989-8-19 s.n. San Mateo P. G. & E. Marsh, San Bruno Mountains. Comment
  RSA365994  Schoenoplectus pungens Edith A. Purer 1933-7-27 s.n. San Mateo 2 miles south of Pigeon Point. Comment
  CAS-BOT-BC111781  Schoenoplectus pungens var. badius Ira L. Wiggins 1928-4-22 2947 San Mateo Moss Beach Comment
  UCD50157  Schoenoplectus pungens var. badius S. Galen Smith; Malcolm A. Nobs 1949-8-25 1558 San Mateo Marshes at Sharp Park, San Mateo County. Comment
  CAS-BOT-BC111062  Scirpus microcarpus Walter Knight; Irja Knight 1964-5-30 s.n. San Mateo Colma Canyon Comment
  POM312852  Scirpus microcarpus H. L. Mason, Verne Grant 1946-8-28 13093 San Mateo 1 mile west of San Bruno between Santa Cruz and Daly City on Highway 5 Comment
  UC1100816  Scirpus pungens Malcolm A. Nobs, S. Galen Smith 1949-8-25 1558 San Mateo Sharp Park; marshes Comment
  POM170228  Scoliopus bigelovii C. F. Baker 1902-3-18 322 San Mateo Kings Mountain Comment
  CAS-BOT-BC519004  Scoliopus bigelovii George Oberlander 1949-4-17 87 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC519006  Scoliopus bigelovii W. R. Dudley 1895-3-5 s. n. San Mateo Kings Mt Comment
  CAS-BOT-BC519010  Scoliopus bigelovii L. R. Abrams 1904-3-7 s. n. San Mateo Bear Gulch, Santa Cruz Mtn. Penn. Comment
  CAS-BOT-BC519017  Scoliopus bigelovii Alice Eastwood 1922-3-1 s. n. San Mateo Lake Pilarcitos Comment
  SEINET12050525  Scoliopus bigelovii F. H. Utech 1988-1 88 -041 San Mateo 3.3 mi from junction of Kings Mt Rd & CA 35 on former enroute to Woodside 260 Comment
  SEINET12057692  Scoliopus bigelovii F. H. Utech, Sato, T.; Ohara, M. 1990-5-4 90 -223 San Mateo 0.5 mi from junction of Kings Mt Rd & CA 35, on the former, near Skyline Trail head 580 Comment
  JROH5459  Scribneria bolanderi John H. Thomas 1980-5-1 19912 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road D Comment
  CHSC1898  Scrophularia californica H. Summers 1929-5-10 San Mateo Moss Beach. Comment
  JROH4128  Scrophularia californica John Hunter Thomas 1977-6-16 18747 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH2886  Scutellaria tuberosa John Hunter Thomas 1978-4-22 19104 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC59062  Sedum spathulifolium H. L. Mason 1921-7-1 s.n. San Mateo Pescadero Creek Comment
  SBBG33418  Sedum spathulifolium A. D. E. Elmer -Jun-1903 4550 San Mateo Crystal Springs Lake Comment
  RSA0074736  Sedum spathulifolium A. D. E. Elmer 1903-06 4550 San Mateo Toward San Mateo from Crystal Springs Lake. Comment
  CAS-BOT-BC363399  Senecio aronicoides Fred Hemphill 1973-5-14 808 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC363401  Senecio aronicoides Margaret Barry 1937-5-23 149 San Mateo Coal Mine Ridge Comment
  JEPS22901  Senecio aronicoides John H. Thomas 1958-5-10 7163 San Mateo about 5.0 mi sw Palo Alto; Jasper Ridge 152 Comment
  RSA0012754  Senecio aronicoides John H. Thomas 1961-5-7 9308 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  CAS-BOT-BC363387  Senecio aronicoides Walter Knight; Irja Knight 1965-3-21 966 San Mateo San Bruno Mountain. About 1/4 mi. e. of Brisbane power lines near road on ridge Comment
  CAS-BOT-BC363395  Senecio aronicoides Le Roy Abrams 1902-5-4 2398 San Mateo Hills back of Redwood Comment
  SJSU5433  Senecio aronicoides G. I. Tourtlotte 1968-5-5 San Mateo N end Sawyer Camp Rd near Crystal Springs Comment
  CAS-BOT-BC363736  Senecio hydrophilus Le Roy Abrams 1901-9-1 2220 San Mateo Menlo Park, borders of S.F. Bay Comment
  RSA195550  Senecio mikanioides John H. Thomas 1967-2-9 12399 San Mateo San Bruno. Near intersection of Skyline Blvd. and Berkshire Dr. Comment
  JROH5834  Senecio vulgaris Ann Lambrecht 2014-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. End of Trail 20 (Douglas Iris road) Comment
  CAS-BOT-BC80295  Sequoia sempervirens William R. Dudley 1893-2-18 s.n. San Mateo Near La Honda Comment
  CAS-BOT-BC85782  Sequoia sempervirens unspecified 1901-1-27 s.n. San Mateo Mountain side West of Preston Place Comment
  JROH3830  Sherardia arvensis John H. Thomas 1967-3-26 12421 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG83432  Sherardia arvensis B. Bowman 1961-3-30 30 San Mateo corner of Sebastian Drive and Lassuen Court; Burlingame 9 Comment
  SD114361  Sherardia arvensis Darley F. Howe 1967-4-14 4350 San Mateo 7 miles from San Mateo on road to Half Moon Bay 121 Comment
  RSA448568  Sidalcea diploscypha L. S. Rose 1936-5-28 36300 San Mateo Emerald lake, W. of Redwood City. Comment
  SD39295  Sidalcea diploscypha Edith A. Purer 1933-5-30 3636 San Mateo Between Woodside and Spring Valley Lakes. 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
  POM61910  Sidalcea malviflora subsp. laciniata A. D. E. Elmer 1903-05 4687 San Mateo San Bruno Hills. Comment
  UC108870  Sidalcea malviflora subsp. laciniata T. S. Brandegee June 1893 San Mateo Colma Comment
  UC18913  Sidalcea malviflora subsp. laciniata J. Burtt Davy 1895-4-20 1024 San Mateo Millbrae Comment
  UC204266  Sidalcea malviflora subsp. laciniata A. D. E. Elmer May 1903 4637 San Mateo San Bruno Hills Comment
  UC8421  Silene californica J. Burtt Davy Jun 21 1893-Jun 23 1893 1158 San Mateo Pilarcitos Lake and Canyon Comment
  RSA477893  Silene gallica Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mts. overlooking Daly City near San Francisco. Comment
  CAS-BOT-BC386855  Silene gallica John H. Thomas 1963-5-20 10132 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC386859  Silene gallica George Oberlander 1949-4-23 811 San Mateo Sawyer Ridge Comment
  CAS-BOT-BC389198  Silene laciniata subsp. californica Brandegee No date on label s.n. San Mateo Crystal Springs Comment
  CAS-BOT-BC389200  Silene laciniata subsp. californica H. A. Dutton 1900-4-17 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  JEPS83066  Silene scouleri subsp. grandis Roy E. Buck, Randall A. Morgan, James A. West 1983-7-23 447 San Mateo ca 1.4 km w San Andreas Dam (on sw-facing slope above last curve in gravel ridge rd before intersection above San Andreas Dam, n end Sawyer Ridge); San Francisco Watershed Reserve, n end Sawyer Ridge 312 Comment
  CAS-BOT-BC389901  Silene scouleri subsp. scouleri Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Above the quarry Comment
  CAS-BOT-BC389895  Silene scouleri subsp. scouleri Dean Wm. Taylor 1988-6-5 9792 San Mateo Santa Cruz Mountains. San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest. Right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 237 Comment
  CAS-BOT-BC389899  Silene scouleri subsp. scouleri Elizabeth McClintock; Paul Reeberg 1988-8-12 s.n. San Mateo San Bruno Mountains. Kamtchaka [Kamchatka] Point Comment
  CAS-BOT-BC364854  Silybum marianum Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  JEPS59180  Silybum marianum James G. Daly 1934-1 461 San Mateo San Gregorio watershed , San Gregorio watershed (Santa Cruz Mts.) Comment
  CAS-BOT-BC74987  Sinapis arvensis Fred Hemphill 1973-4-8 615 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  POM273726A  Sisymbrium officinale Lyman Benson 1935-5-5 6533 San Mateo Lake Searsville; Santa Cruz Mt. Range. S. F. Bay watershed 152 Comment
  CAS-BOT-BC75352  Sisymbrium officinale Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountains. Crocker Avenue. Comment
  HSC24043  Sisyrinchium bellum Mary Katherine Wicksten 1971-6-15 20 San Mateo Huddart Park near horse ring Comment
  SD227685  Sisyrinchium bellum G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3746 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek. 106 Comment
  UC75049  Sisyrinchium bellum C. F. Baker 1902-3-30 428 San Mateo Crystal Springs Lake Comment
  UCR51646  Sisyrinchium bellum R. Ascanio 1989-4-17 s.n. San Mateo c. 2 mi north of Ano Nuevo State Reserve, E on Gazo Creek Road off Hwy 1. 85 Comment
  UC1577337  Smilacina racemosa Cynthia DiGiovanni 1971-4-4 19 San Mateo Alpine Road Menlo Park (foothills) Comment
  RSA15288  Smilacina stellata var. sessilifolia Carl B. Wolf 1927-4-3 256 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  JROH6178  Solanum americanum John Rawlings 2017-10-3 2302 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera Creek 111 Comment
  JROH4181  Solanum americanum Carol Zabel 1989-8-11 29 San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek bank about 100 feet upstream from low-flow crossing on Road C. Comment
  SD38286  Solanum douglasii Edith A. Purer 1933-7-27 5389 San Mateo partially stabilized areas in sand dunes, two miles south of Pigeon Point Comment
  UCR51662  Solanum douglasii 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
  RSA523368  Solanum douglasii Gordon H. True Jr. 1937-7-23 806 San Mateo North of Sharpe Park. 15 Comment
  UCSC007781  Solanum douglasii Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  UC1332474  Solanum furcatum G. L. Stebbins Jr. and J. W. Duffield 1938-10-24 19 San Mateo Mussell Rock Comment
  CHSC57101  Solanum physalifolium var. nitidibaccatum Steven Triano 1988-5-24 214 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  CAS-BOT-BC157036  Solanum umbelliferum L. Abrams 1914-4-2 5073 San Mateo Woodside 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
  HSC23784  Solanum umbelliferum Mary Katherine Wicksten 1971-6-17 58 San Mateo Huddart Park, above Oak Flat Comment
  JROH4192  Solanum umbelliferum John H. Thomas 1976-4-2 18071 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA22395  Solanum umbelliferum L. S. Rose 1939-2-26 39016 San Mateo Emerald Lake. 183 Comment
  CAS-BOT-BC154181  Solanum umbelliferum H. A. Dutton 1900-2-11 s.n. San Mateo Woodside, on Jasper Comment
  SEINET7262166 Image available Solanum umbelliferum S. B. Snow 1907-2-18 16 San Mateo Jasper Ridge Comment
  JROH5859  Soleirolia soleirolii Toni Corelli, Ann Lambrecht 2005-7-13 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University, San Mateo Co.; face of Searsville Dam, west side. Comment
  CAS-BOT-BC365746  Solidago spathulata Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo San Bruno Mountain. Colma Canyon near old quarry Comment
  JEPS6048  Solidago spathulata V. F. Hesse 1954-7-30 1341 San Mateo near Pebble Beach 15 Comment
  SD38297  Solidago spathulata Edith A. Purer 1932-7-18 4024 San Mateo Comment
  LA203968  Solidago velutina subsp. californica U. S. Grant; 1926-9-6 IV San Mateo Kuiqs Mountain 609 Comment
  CAS-BOT-BC365924  Soliva sessilis W. R. Dudley 1895-6-6 s.n. San Mateo Santa Cruz Peninsula. Near Pescadero Creek Comment
  CAS-BOT-BC365926  Soliva sessilis John H. Thomas 1958-3-19 7062 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco 91 Comment
  CAS-BOT-BC365936  Soliva sessilis J. H. Thomas 1954-6-11 4283 San Mateo About 0.25 miles north of Pigeon Point Light House Comment
  JROH1244  Soliva sessilis John Hunter Thomas 1978-5-12 19202 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC353414  Soliva sessilis Peter Rubtzoff 1976-5-22 8550 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. East Fork Colma Creek canyon area, San Bruno Mountains. Comment
  RSA177000  Sparganium erectum subsp. stoloniferum John H. Thomas 1964-6-3 10412 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH5520  Sparganium eurycarpum var. eurycarpum L. R. Abrams 1917-10-9 6864 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Ridge Comment
  CAS-BOT-BC236627  Spartina foliosa Ira L. Wiggins 1938-11-25 9213 San Mateo Along Dumbarton Bridge approach. Comment
  CAS-BOT-BC236630  Spartina foliosa John Thomas Howell 1956-11-22 31962 San Mateo Near Main St. and Bayshore Highway, Redwood City Comment
  JROH1743  Spergula arvensis John Hunter Thomas 1978-4-25 19157 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1746  Spergula arvensis John Hunter Thomas 1981-4-7 20297 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  JROH1762  Spergularia John Hunter Thomas 1983-4-3 21309 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  JROH1763  Spergularia John Hunter Thomas 1983-5-23 22244 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road near shack side and low-flow crossing Comment
  JROH1767  Spergularia John Hunter Thomas 1988-4-27 24411 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC390199  Spergularia bocconi R. I. Gilbreath 1975-8-1 0084 San Mateo In school yard on Alberta Way, Hillsborough 167 Comment
  RSA18465  Spergularia macrotheca C. B. Wolf 1927-6-29 543 San Mateo South of Pebble Beach near Pescadero Comment
  CAS-BOT-BC390455  Spergularia macrotheca var. macrotheca J. H. Thomas 1949-6-4 584 San Mateo 1.4 miles S. of road leading to Pescadero Comment
  CAS-BOT-BC390459  Spergularia macrotheca var. macrotheca G. B. Rossbach; R. P. Rossbach 1937-10-1 615 San Mateo Near Burlingame Comment
  CAS-BOT-BC390917  Spergularia marina C. F. Baker 1902-10-20 1859 San Mateo Searsville 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
  UCD169489  Spergularia marina Peter H. Raven 1950-5-7 2039 San Mateo Moss Beach. 24 Comment
  CAS-BOT-BC166942  Spergularia rubra Peter Rubtzoff 1978-7-8 9234 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC390703  Spergularia rubra Philip C. Wheeler 1965-5-17 s.n. San Mateo San Bruno Mountain. In Crocker Hills near the Cow Palace Comment
  JROH1773  Spergularia rubra John Hunter Thomas 1992-5-26 25352 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito Creek Comment
  RSA0098733  Spergularia villosa Lyman Benson 1934-7-29 6112 San Mateo Moss Beach. Pcific Ocean watershed. 15 Comment
  JROH2899  Stachys bullata John H. Thomas 1971-5-30 15977 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2916  Stachys bullata John Hunter Thomas 1992-7-24 25384 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Causeway Comment
  SEINET12330318  Stachys bullata Unknown 1984-1 RR 40151 San Mateo Pacifica, foothills of Montara Mountain, San Pedro Valley Park 61 Comment
  RSA107098  Stachys chamissonis L. S. Rose 1956-7-2 56118 San Mateo Emerald Lake, hills of Redwood City. 183 Comment
  CAS-BOT-BC5588  Stachys rigida var. quercetorum A. A. Heller 1907-5-28 8581 San Mateo Back of San Mateo on the Half Moon Bay road, about 3 miles beyond San Mateo 91 Comment
  JROH5890  Stachys rigida var. quercetorum Ruth Porter 1998-4-28 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1783  Stellaria media John Hunter Thomas 1978-4-20 19073 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1786  Stellaria media John Hunter Thomas 1982-3-23 20815 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1787  Stellaria media John Hunter Thomas 1983-4-5 21323 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  CAS-BOT-BC394054  Stellaria media Elizabeth McClintock 1965-3-21 s.n. San Mateo Along summit of ridge east of Brisbane Power Lines; San Bruno Mountain 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-BC394062  Stellaria media Fred Hemphill 1973-3-9 641 San Mateo 347 Alberta Way, Hillsborough (1 mile from Skyline Blvd.) Comment
  JROH1777  Stellaria media J. H. Thomas 1963-2-21 10021 San Mateo Jasper Ridge Biological Preserve, Stanford University; along old road at Westridge end of ridge Comment
  JROH1782  Stellaria media John H. Thomas 1976-10-16 18417 San Mateo Jasper Ridge Biological Preserve, Stanford University; along or near San Francisquito Creek from the low flow crossing to the vicinity of the old fire place ruins downstream Comment
  JROH1791  Stellaria nitens John Hunter Thomas 1988-5-16 24462 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC375210  Stephanomeria elata John Thomas Howell 1939-10-8 15369 San Mateo Pt. San Pedro Comment
  JROH1274  Stephanomeria virgata John H. Thomas 1978-9-24 19337 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC375911  Stephanomeria virgata Le Roy Abrams 1902-9-28 3002 San Mateo New Grade Road - near Portola Comment
  HSC13372  Stipa pulchra L. S. Rose 1963-4-27 63000 San Mateo Skyline Blvd., W of San Mateo 91 Comment
  JROH5334  Stipa pulchra John H. Thomas 1964-4-12 10311 San Mateo Jasper Ridge Biological Preserve, Stanford University. On slope to the east of the dam. Comment
  JROH1679  Symphoricarpos albus var. laevigatus John Hunter Thomas 1977-6-16 18737 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA120029  Symphoricarpos albus var. laevigatus G. H. Mallory 1919-8-20 s.n. San Mateo Near La Honda. Comment
  RSA177008  Symphoricarpos albus var. laevigatus John H. Thomas 1964-11-29 10540 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto; along San Francisquito Creek below dam. 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
  CAS-BOT-BC237067  Symphoricarpos mollis Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo, San Bruno Mountain Comment
  SJSU14728  Symphoricarpos orbiculatus C. W. Sharsmith 1991-12-14 9230 San Mateo Yerba Buena Nursery, Woodside Comment
  UC87085  Symphyotrichum chilense C. F. Baker 1902-9-2 1550 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC99062  Symphyotrichum chilense Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain - Quarry 4 Comment
  CAS-BOT-BC99091  Symphyotrichum chilense W. R. Dudley 1895-9-21 s.n. San Mateo Menlo Park - Santa Cruz Peninsula Comment
  CAS-BOT-BC99387  Symphyotrichum subspicatum Phillip Wheeler 1965-5-23 s.n. San Mateo Radio Road, San Bruno Mountain Comment
  CAS-BOT-BC376917  Taraxacum officinale J. H. Thomas 1964-4-30 10337 San Mateo Near intersection of El Camino Real and F St., Colma Comment
  JROH2999  Taraxia ovata James Newman 1951-4-21 7 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  JROH369  Tauschia hartwegii John H. Thomas 1976-4-19 18086 San Mateo Jasper Ridge Biological Preserve, Stanford University; vicinity of dam Comment
  JROH374  Tauschia kelloggii John Hunter Thomas 1992-5-25 25347 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC447468  Tellima grandiflora A. D. E. Elmer 1903-6-1 4702 San Mateo Pescadero Comment
  RSA176767  Tellima grandiflora John H. Thomas 1961-5-5 9209 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Along San Francisquito Creek below Searsville Dam. 76 Comment
  UC634944  Thalictrum fendleri H. L. Mason 1927-4-23 3680 San Mateo summit of road between La Honda and Pescadero Creek Comment
  JROH3510  Thalictrum fendleri var. polycarpum John H. Thomas 1973-3-12 16495 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC399851  Thalictrum polycarpum C. F. Baker 1902-5-1 692 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC399843  Thalictrum polycarpum W. R. Dudley 1906-5-19 s.n. San Mateo Santa Cruz Mountain Peninsula. Whipple Road - West of Redwood City Comment
  UC311389  Thermopsis californica var. californica A. D. E. Elmer May, 1903 4824 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC66660  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-BC66664  Thysanocarpus curvipes John H. Thomas 1971-4-3 15745 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66669  Thysanocarpus curvipes John H. Thomas 1973-4-7 16519 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66671  Thysanocarpus curvipes John H. Thomas 1974-5-3 17244 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  JROH1611  Thysanocarpus curvipes John Hunter Thomas 1987-4-4 24167 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam Comment
  JROH1619  Thysanocarpus curvipes John Hunter Thomas 1990-4-7 24801 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC66655  Thysanocarpus curvipes H. J. Dengler 1972-4-30 s.n. San Mateo Unspecified. Comment
  JROH1608  Thysanocarpus curvipes John Hunter Thomas 1986-4-9 23929 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old fence and gate (now removed) Comment
  RSA0039332  Thysanocarpus curvipes var. curvipes Carl B. Wolf 1929-5-17 3716 San Mateo 1 mi. west of Skyline Drive on Alpine Road. Comment
  POM354789  Tiarella trifoliata var. unifoliata E. S. Spalding 1924-6-6 s.n. San Mateo La Honda. Comment
  JROH378  Torilis arvensis John Hunter Thomas 1989-6-17 24778 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC172905  Toxicodendron diversilobum Ned Cahill 1974-5-13 241 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City. Located within five feet of the stream. Comment
  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
  UCR253355  Tragopogon porrifolius A. C. Sanders 2014-8-3 41235 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
  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
  RSA14358  Trientalis latifolia Elmer I. Applegate 1895-4-6 328 a San Mateo Shady arroya in hills above Stanford University Comment
  RSA79060  Trientalis latifolia E. K. Balls, Lee W. Lenz 1952-5-6 17097 San Mateo Old La Honda Road to Palo Alto, Ne from Hwy5. 305 Comment
  SD227822  Trifolium G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3744 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek. 106 Comment
  JROH2226  Trifolium albopurpureum John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2227  Trifolium albopurpureum John Hunter Thomas 1980-4-10 19868 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC631539  Trifolium albopurpureum var. albopurpureum A. A. Heller 1907-5-23 8554 San Mateo back of San Mateo (on Half Moon Bay Rd) Comment
  UC165515  Trifolium albopurpureum var. dichotomum J. Burtt Davy 1893-6-22 836 San Mateo Lake Pilarcitos Comment
  JROH2239  Trifolium barbigerum John H. Thomas 1973-4-14 16566 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET7076095  Trifolium barbigerum var. andrewsii 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
  NY33700  Trifolium bicephalum A. D. E. Elmer 05 1903 4812 San Mateo San Pedro Comment
  UC203043  Trifolium bifidum var. bifidum A. D. E. Elmer May, 1903 4714 San Mateo Portola Comment
  JROH2254  Trifolium bifidum var. decipiens John H. Thomas 1967-5-12 12871 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM20507  Trifolium bifidum var. decipiens A. D. E. Elmer 4714 San Mateo Portola. Comment
  SJSU15445  Trifolium bifidum var. decipiens Toni Corelli 2010-5-13 604 San Mateo Pedro Point Headlands, Pacifica, CA, along South Ridge Trail 180 Comment
  UCSC005926  Trifolium buckwestiorum Randall Morgan 1996-5-18 2955 San Mateo Seed from Coal Mine Ridge Comment
  JROH2231  Trifolium dichotomum John H. Thomas 1966-4-22 11574 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  POM126277  Trifolium fucatum var. fucatum R. L. Pendleton 1907-4-20 622 San Mateo Ocean View. 122 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
  UCSC005240  Trifolium fucatum var. fucatum Randall Morgan 1995-6-6 2723 San Mateo Pescadero State Beach, Highway 1 opposite Pescadero Road Comment
  SJSU15442  Trifolium glomeratum Toni Corelli 2010-5-13 602 San Mateo Pedro Point Headlands, Pacifica, CA, disturbed area along South Ridge Trail, west of Hwy. 1 100 Comment
  JROH2312  Trifolium glomeratum Ann Lambrecht 2006-4-21 23 San Mateo Jasper Ridge Biological Preserve, Stanford University; roadside, N side of Road A, in old seven acre lease lot Comment
  JROH2313  Trifolium glomeratum Ann Lambrecht 2006-4-24 24 San Mateo Jasper Ridge Biological Preserve, Stanford University; roadside, N side of Road A, in old seven acre lease lot Comment
  JROH2317  Trifolium gracilentum John H. Thomas 1971-4-24 15776 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC165628  Trifolium gracilentum J. Burtt Davy 1895-1 1026 San Mateo Pilarcitos Comment
  CDA27988  Trifolium macraei D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  POM20397  Trifolium macraei A. D. E. Elmer 1908-05 4812 San Mateo San Pedro. Comment
  JROH2338  Trifolium microcephalum John H. Thomas 1956-4-7 5607 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  POM20503  Trifolium microdon A. D. E. Elmer 1903-06 4628 San Mateo Portola. Comment
  JROH2346  Trifolium subterraneum John Hunter Thomas 1980-4-10 19873 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2362  Trifolium subterraneum John Hunter Thomas 1987-5-19 24299 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2363  Trifolium subterraneum John Hunter Thomas 1988-5-3 24435 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Lakeside Laboratory Comment
  JROH2367  Trifolium subterraneum John Hunter Thomas 1990-4-7 24802 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2366  Trifolium subterraneum John Hunter Thomas 1989-4-20 24645 San Mateo Jasper Ridge Biological Preserve, Stanford University; new bridge below San Francisquito Creek below dam Comment
  JROH2372  Trifolium variegatum John H. Thomas 1955-5-6 4989 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent grassy slopes Comment
  JROH2373  Trifolium variegatum John H. Thomas 1955-5-6 4999 San Mateo Jasper Ridge Biological Preserve, Stanford University; small draw on south side of ridge Comment
  JROH2377  Trifolium variegatum John H. Thomas 1961-4-8 9070 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2382  Trifolium variegatum John H. Thomas 1973-4-14 16569 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2383  Trifolium variegatum John H. Thomas 1974-4-25 17203 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge Comment
  JROH2387  Trifolium variegatum John Hunter Thomas 1981-4-23 20470 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2391  Trifolium variegatum John Hunter Thomas 1992-4-23 25155 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Indian grinding rock and along trail to redwoods Comment
  SEINET3131915  Trifolium variegatum L. S. Rose 1937-5-2 37251 San Mateo Burlingame 91 Comment
  JROH2413  Trifolium willdenovii John Hunter Thomas 1988-5-3 24446 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2416  Trifolium willdenovii John Hunter Thomas 1991-5-2 25022 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC74990  Trifolium willdenovii C. F. B. 1903-4-8 1925 San Mateo San Andreas Lake Comment
  POM278617  Trifolium willdenovii Lyman D. Benson 1930-5-1 2057 San Mateo Stanford Univ.; San Lorenzo mt. range. 122 Comment
  SJSU7998  Trifolium willdenovii M. S. Hall 1965-5-8 136 San Mateo W San Carlos Hills Comment
  CAS-BOT-BC451909  Triglochin maritima Ira L. Wiggins 1946-4-30 11200 San Mateo On west side of Bayshore Highway 1/2 mile north of Redwood City. Comment
  JROH4730  Trillium chloropetalum John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1134685  Trillium chloropetalum H. S. Yates 1935-2-3 5001 San Mateo 2 mi. s. San Gregorio; Santa Cruz Quad. Comment
  UC1206466  Trillium chloropetalum Le Roy Abrams 1902-4-13 2331 San Mateo Crystal Springs Lake Comment
  UC1300919  Trillium chloropetalum Helen K. Sharsmith 1963-3-23 5246 San Mateo Alpine Creek Canyon Santa Cruz Mts., Alpine Creek Canyon 243 Comment
  UC74959  Trillium chloropetalum C. F. Baker 1902-3-30 431 San Mateo Crystal Springs Lake Comment
  RSA116750  Trillium chloropetalum var. chloropetalum James I. McMurphy 1902-3-22 s.n. San Mateo Above Portola. Comment
  RSA176413  Trillium chloropetalum var. chloropetalum John H. Thomas 1964-4-19 10330 San Mateo Jasper Ridge Biological experimental area, 5 miles SW of Palo Alto. Comment
  CAS-BOT-BC521060  Trillium chloropetalum var. giganteum David D. Keck 1932-3-6 1394 San Mateo La Honda road above Searsville Lake, Santa Cruz Mountains Comment
  CAS-BOT-BC521067  Trillium chloropetalum var. giganteum Phillip C. Wheeler 1965-6-20 s.n. San Mateo San Bruno Mountain: Trillium Gulch near Knife Rock Comment
  CAS-BOT-BC521075  Trillium chloropetalum var. giganteum W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula: ravine S side Montara Mt. Comment
  CAS-BOT-BC521208  Trillium chloropetalum var. giganteum Ira L. Wiggins 1928-4-14 2917 San Mateo Alpine Creek Road Comment
  RSA378200  Trillium chloropetalum var. giganteum L. J. Clemments s.n. San Mateo San Mateo Comment
  CAS-BOT-BC133431  Trillium ovatum John Hunter Thomas 1954-4-3 3822 San Mateo Along San Gregorio Creek about 1.5 miles west of La Honda 106 Comment
  CAS-BOT-BC133448  Trillium ovatum L. R. Abrams 1898-3-5 s.n. San Mateo Kings Mt. Comment
  UC142146  Trillium ovatum Dr. E. L. Greene 1902-3-18 329 San Mateo West side King's Mountain, San Mateo County Comment
  JROH1649  Triodanis biflora John Hunter Thomas 1979-6-12 19586 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC238568  Triphysaria floribunda George Oberlander 1949-4-30 142 San Mateo San Francisco Watershed Reserve Comment
  JEPS3988  Triphysaria pusilla Dr. L. M. Newlon 1919-4-14 4 San Mateo Moss Beach 22 Comment
  JROH5612  Triphysaria pusilla John Rawlings 2014-4-11 1215 San Mateo Jasper Ridge Biological Preserve, Stanford University; in road G immediately north of its intersection with Rd. J. 105 Comment
  SBBG40480  Triphysaria versicolor subsp. versicolor W. J. Dress 1951-5-12 San Mateo 4.5 mi N of Pigeon Point Comment
  UCR156579  Triteleia ixioides var. ixioides P. W. Rundel 1963-7-7 1136 San Mateo San Francisco Bay watershed, Santa Cruz Mountain Range, South Spring Rd., Woodside 500 Comment
  RSA18458  Triteleia laxa Carl B. Wolf 1927-6-29 549 San Mateo South of Pebble Beach near Pescadero Comment
  CAS-BOT-BC526364  Triteleia laxa Philip C. Wheeler 1965-6-8 s.n. San Mateo Crocker Hills, San Bruno Mountain Comment
  CAS-BOT-BC526789  Triteleia laxa D. D. Davis 1903-5-1 2 San Mateo near [?]avery place Comment
  CAS-BOT-BC526790  Triteleia laxa Josephine D. Randall 1907-6-8 235 San Mateo Santa Cruz Peninsula Comment
  SEINET12044747  Triteleia laxa G. C. Kimber, Roush, L. 1918-1 s.n. San Mateo Jasper Ridge, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC200487  Triticum aestivum Phillip C. Wheeler 1965-6-19 s.n. San Mateo Brisbane Lagoon Comment
  RSA17882  Typha latifolia Carl B. Wolf 1927-6-10 s.n. San Mateo Searsville Lake. Comment
  JROH4219  Ulmus minor John Hunter Thomas 1977-6-16 18804 A San Mateo Jasper Ridge Biological Preserve, Stanford University 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-BC403971  Urtica dioica subsp. gracilis Roxana S. Ferris 1920-4-26 1965 San Mateo Santa Cruz Mountain Peninsula. Near mouth of canyon of Pescadero Creek 243 Comment
  UCD111539  Urtica dioica subsp. gracilis G. K. Helmkamp; E. A. Helmkamp 2001-6-2 6780 San Mateo Central CA coast: Purissima Crk Road, E of Half Moon Bay at Purissima Crk, 3.2 miles E of CA-1. 243 Comment
  CAS-BOT-BC412534  Urtica urens John H. Thomas 1967-5-27 11638 San Mateo Menlo Park, near the Southern Pacific train station Comment
  CAS-BOT-BC199348  Vaccinium ovatum John Thomas Howell 1924-2-23 258 San Mateo King Mountain Comment
  CAS-BOT-BC199356  Vaccinium ovatum L. R. A. 1902-3-16 2281 San Mateo Kings Mountain Comment
  CAS-BOT-BC199362  Vaccinium ovatum George Oberlander 1949-4-17 67 San Mateo Cahill Ridge Comment
  CAS-BOT-BC199371  Vaccinium ovatum A. D. E. Elmer 1903-4-1 4561 San Mateo King's [Kings] Mountain Comment
  JEPS85569  Vaccinium ovatum Craig Dremann 1986-8-30 329 San Mateo entrance to Memorial Park, off Pescadero road Loma Mar Comment
  POM87997  Vaccinium ovatum L. R. Abrams 1902-3-16 2281 San Mateo Kings Mountain. Comment
  RSA681683  Vaccinium ovatum Annuschka Deb 1989-3-17 50 San Mateo Woodside. Comment
  SJSU11091  Vaccinium ovatum S. H. Casey 1969-5-18 260 San Mateo near summit San Bruno Mt Comment
  UC634722  Vaccinium ovatum Herbert L. Mason 1927-4-23 3671 San Mateo La Honda Comment
  UC877266  Vaccinium ovatum E. W. Rust 1907-4-27 San Mateo Kings Mountain 762 Comment
  CAS-BOT-BC199354  Vaccinium ovatum R. Stinchfield 1913-11-1 176 San Mateo King's Mt. Trail Comment
  CAS-BOT-BC199467  Vaccinium parvifolium A. D. E. Elmer 1903-5-1 4924 San Mateo Butano Creek Comment
  UC306548  Vaccinium parvifolium A. D. E. Elmer May 1903 4924 San Mateo Butano Creek Comment
  SEINET3559610 Image available Vagnera sessilifolia Lewis S. Rose 1933-4-9 33070 San Mateo Belmont. Comment
  CAS-BOT-BC76146  Vancouveria planipetala W. R. Dudley 1901-12-31 s.n. San Mateo Santa Cruz Mountain Peninsula. Above Gazos Creek. Comment
  UC1537693  Verbena lasiostachys Gordon H. True Jr. 1936-6-14 500 San Mateo canyon s of Salada Beach 152 Comment
  RSA411631  Verbena lasiostachys E. S. Spalding 1923-8-3 s.n. San Mateo 3 miles W of Redwood City, near Pulgas Tunnel. Comment
  JROH4261  Verbena lasiostachys var. lasiostachys John H. Thomas 1975-6-5 17932 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just outside gate. Comment
  JROH4271  Verbena lasiostachys var. lasiostachys John Hunter Thomas 1991-6-9 25069 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
  JROH4279  Verbena lasiostachys var. scabrida John Hunter Thomas 1982-7-3 21065 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA82516  Verbena robusta J. T. Howell 1939-6-16 14745 San Mateo Crystal Springs Lake. Comment
  UC112848  Veronica americana Katharine Brandegee July 1908 San Mateo near San Pedro Comment
  CAS-BOT-BC157693  Veronica americana Peter Rubtzoff; Roman Gankin 1975-5-21 7971 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  POM127023  Vicia americana var. americana R. L. Pendleton 1907-4-20 608 San Mateo Lake Merced 30 Comment
  UCD108698  Vicia americana var. americana A. A. Heller 1907-4-20 8449 San Mateo Near Lake Merced. Comment
  RSA788949  Vicia angustifolia Peter Rubtzoff 1977-6-21 9062 San Mateo San Bruno Mountains. Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  UC1130191  Vicia benghalensis N. K. Carlson 1935-6-28 98 A San Mateo 1 mi w Pigeon Pt.; Santa Cruz Quad. 91 Comment
  UCD108671  Vicia hassei P. B. Kennedy 1917-5-1 s.n. San Mateo Crystal Springs Road. Comment
  SD227823  Vicia sativa G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3749 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek. 106 Comment
  JROH2447  Vicia sativa subsp. sativa John Hunter Thomas 1981-4-30 20516 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2450  Vicia sativa subsp. sativa John Hunter Thomas 1983-4-3 21311 San Mateo Jasper Ridge Biological Preserve, Stanford University; old beach area Comment
  JROH2442  Vicia sativa subsp. sativa John H. Thomas 1973-6-10 16825 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2443  Vicia sativa subsp. sativa H. J. Dengler 1975-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; by "road" onto J.R. from Westridge, Goya Road entrance; 200 m from Westridge fence Comment
  JEPS112937  Vicia tetrasperma Dean W. Taylor 2002-3-20 17954 San Mateo Franklin Point, along path to the coastal bluff from parking area on Highway 1 15 Comment
  UCD108798  Vicia tetrasperma G. K. Helmkamp; E. A. Helmkamp 2001-6-2 6769 San Mateo Central CA coast: Purissima Road. E of Half Moon Bay, 1.9 miles E of CA-1. 168 Comment
  SBBG50995  Vinca major J. Doty 1969-3-27 611 San Mateo W side of State Hwy 1, ca. 4 mi N of San Gregorio State Beach Park 30 Comment
  CAS-BOT-BC264031  Viola adunca W. R. Dudley 1896-12-31 s.n. San Mateo Santa Cruz Mountain Peninsula. Between San Gregorio and Pescadero, near sea 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
  UC19283  Viola glabella J. Burtt Davy 1895-4-20 1056 San Mateo Pilarcitos Creek Comment
  CAS-BOT-BC536575  Viola glabella George Oberlander 1949-6-25 200 San Mateo San Francisco Watershed Reserve: southern boundary Comment
  CAS-BOT-BC536830  Viola glabella J. H. Thomas 1949-4-14 283 San Mateo Kings Mt. Comment
  POM128420  Viola ocellata L. R. Abrams 1902-3-16 2276 San Mateo Kings Mountain. Comment
  RSA130599  Viola ocellata Josephine Randall 1908-3-28 s.n. San Mateo Kings Mt Road. Santa Cruz Peninsula. Comment
  SEINET11981030  Viola pedunculata L. S. Hill 1930-1 74 San Mateo Comment
  UC74940  Viola sempervirens C. F. Baker 1902-1-15 232 San Mateo w side of King's Mountain; The Pacific Slope, King's Mountain Comment
  UCD111301  Viola sempervirens Janet Jacob 1951-4-1 61 San Mateo 7 miles east of Pescadero. Comment
  POM286649  Viola sempervirens Lyman D. Benson 1935-3-10 6252 San Mateo La Honda Grade. Santa Cruz mtn range, Pacific Ocean watershed. 518 Comment
  CAS-BOT-BC199849  Vulpia bromoides W. R. Dudley 1894-5