Search Results — 2000 specimen records retrieved (1358 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
  SD12566  Abronia latifolia Edith Purer 1933-7-27 5381 San Mateo Two miles south of Pigeon Point Comment
  RSA0025757  Abronia latifolia Lyman Benson 1930-8-15 2563 San Mateo San Gregorio. Comment
  RSA0025943  Abronia umbellata C. F. Baker 1902-10-1 1742 San Mateo Pillar Point. Comment
  CAS-BOT-BC451118  Acaena pinnatifida var. californica Reed C. Rollins 1942-4-30 3015 San Mateo San Bruno Hills, 1 mile south of Daly City. Comment
  CAS-BOT-BC451124  Acaena pinnatifida var. californica John Thomas Howell 1926-4-24 1915 San Mateo Daly City Comment
  CAS-BOT-BC451127  Acaena pinnatifida var. californica Elizabeth McClintock 1965-3-28 s.n. San Mateo At Flower Garden adjacent to April Brook; San Bruno Mountains Comment
  CAS-BOT-BC451132  Acaena pinnatifida var. californica W. R. Dudley 1902-5-11 s.n. San Mateo Near Colma; Santa Cruz Peninsula Comment
  CAS-BOT-BC451133  Acaena pinnatifida var. californica Charles Piper Smith 1908-4-26 1425 San Mateo Colma; Pacific Slope Comment
  CAS-BOT-BC219608  Acanthomintha duttonii L. R. Abrams 1920-6-1 7500 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City Comment
  CAS-BOT-BC333292  Acer macrophyllum L. R. Abrams no date on label s.n. San Mateo La HOnda Comment
  CAS-BOT-BC333293  Acer macrophyllum George Oberlander 1950-4-2 583 San Mateo San Francisco Watershed Reserve. South, Lake Pilarcitos Comment
  RSA131268  Acer macrophyllum Josephine Randall 1906-03 s.n. San Mateo San Francisquito Creek near Stanford University Comment
Read comments
Sep 18 2013
  RSA46810  Acer macrophyllum Doris K. Kildale 1929-6-19 8015 San Mateo Kings Mountain Comment
  SJSU10875  Acer macrophyllum E. C. Garbett 1960-4-13 San Mateo Corte Madera Creek, Alpine Rd Comment
  SEINET7898512  Acer saccharum D. Nyquist 1960-4-18 44 San Mateo San Francisco. Comment
  CAS-BOT-BC21591  Achillea millefolium W. E. Lawrence; D. D. Keck 1933-5-11 L 5019 San Mateo Half Moon Bay Comment
  CAS-BOT-BC21625  Achillea millefolium George Oberlander 1949-5-21 157 San Mateo Sawyer Ridge Comment
  CHSC25966  Achillea millefolium S. Villard 1974-4-28 6 San Mateo Found on King's Mt. Rd. at intersection with Jocellyn Lane in Woodside. 45 Comment
  POM284475  Achyrachaena mollis Arthur L. Cohen 1935-4-21 625 San Mateo Jasper Ridge; Mt.Range: Coast; Watershed: Searsville. 183 Comment
  RSA176744  Achyrachaena mollis John H. Thomas 1963-5-12 10079 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  JROH2059  Acmispon americanus var. americanus John H. Thomas 1974-10-26 17632 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2063  Acmispon americanus var. americanus John Hunter Thomas 1983-6-29 22720 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH2067  Acmispon glaber var. glaber W. R. Dudley 1893-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  JROH2053  Acmispon parviflorus G. C. Kimber & Lucile Roush 1918-4-11 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2083  Acmispon wrangelianus John H. Thomas 1955-5-6 4991 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2089  Acmispon wrangelianus Duncan M. Porter 1960-5-5 676 A San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch. Quadrat H-5 Comment
  SEINET10573362  Actaea rubra Ernest A. McGregor McGregor s.n. San Mateo Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC29294  Adenocaulon bicolor George Oberlander 1949-8-20 275 San Mateo Cahill Ridge Comment
  CAS-BOT-BC139952  Adenostoma fasciculatum Fred Hemphill 1973-4-22 744 San Mateo San Carlos, area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC139953  Adenostoma fasciculatum Ned Cahill 1974-5-13 260 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH3591  Adenostoma fasciculatum var. fasciculatum John Hunter Thomas 1987-5-26 24317 San Mateo Jasper Ridge Biological Preserve, Stanford University 160 Comment
  CAS-BOT-BC65670  Adiantum jordanii Ira L. Wiggins 1928-4-14 2919 San Mateo Alpine Creek Road Comment
  JROH93  Adiantum jordanii John Hunter Thomas 1982-11-8 21257 D San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  SD88539  Agoseris apargioides Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay. Comment
  SD30732  Agoseris grandiflora Edith A. Purer 1933-6-4 3655 San Mateo Spring Valley Lakes Comment
  JROH479  Agoseris grandiflora var. grandiflora John H. Thomas 1967-5-31 12936 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH489  Agoseris heterophylla John H. Thomas 1970-4-28 15611 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC15245  Agoseris hirsuta Reed Clark Rollins 1942-4-30 3021 San Mateo San Bruno Hills, 1 mile south of Daly City Comment
  RSA416446  Agoseris hirsuta Edith A. Purer 1933-8-25 5515 San Mateo Sand dunes, near Skyline Drive Comment
  CAS-BOT-BC127481  Agrostis capillaris John Thomas Howell 1975-9-25 51509 San Mateo San Bruno Mountain. Comment
  CAS-BOT-BC210070  Agrostis capillaris Peter Rubtzoff 1978-7-8 9223 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Upper part of East Fork Colma Creek Canyon area. Comment
  CAS-BOT-BC139465  Agrostis hallii A. D. E. Elmer 1903-6-1 4264 San Mateo Alpine School House. Comment
  JROH4793  Agrostis hallii John Rawlings 2011-6-12 1075 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 4 downhill edge. 174 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
  CAS-BOT-BC138865  Agrostis microphylla Le Roy Abrams 1902-5-11 2458 San Mateo Crsystal Springs. Comment
  CAS-BOT-BC138866  Agrostis microphylla Le Roy Abrams 1902-5-11 2458 San Mateo Crystal Springs. Comment
  RSA119335  Agrostis microphylla S. S. Tillett, I. Sternback 1956-6-25 545 San Mateo On Middleton property S of road to Portola State Park, just before entrance; in secondary redwood forest. 396 Comment
  JROH4797  Agrostis pallens W. R. Dudley 1903-1-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  RSA457455  Agrostis pallens Lyman Benson 1937-6-24 8390 a San Mateo Coal Mine Ridge. South of Stanford University. 396 Comment
Read comments
Aug 8 2011
  UCD53094  Agrostis pallens August L. Hormay 1932-5-29 s.n. San Mateo San Mateo County. Comment
  JROH4156  Ailanthus altissima John H. Thomas 1980-11-18 20172 San Mateo Jasper Ridge Biological Preserve, Stanford University 98 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
  RSA320915  Aira caryophyllea Robert A. Norris 1984-3-21 4652 San Mateo Blue Blossom Hill, San Bruno Mts. 357 Comment
  CAS-BOT-BC138244  Aira caryophyllea var. caryophyllea John H. Thomas 1971-5-2 15833 San Mateo Near intersection of Canada Road and Edgewater Road about three miles westward from Redwood City. 152 Comment
  SJSU15968  Aira praecox John Rawlings, Toni Corelli 2016-5-27 1848 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  JROH4570  Allium John Hunter Thomas 1983-6-2 22333 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5785  Allium amplectens John Rawlings 2016-4-26 1757 San Mateo Jasper Ridge Biological Preserve, Stanford University; rocky serpentine north side of ridge (Area C). Also found in the contact drainage just before entering oak woodland as it runs northwest after crossing Trail 9 192 Comment
  CAS-BOT-BC467291  Allium dichlamydeum Walter Knight; Irja Knight 1964-5-30 603 San Mateo North facing slope, Colma Canyon Comment
  RSA40253  Allium falcifolium L. S. Rose 1948-5-16 48111 San Mateo Emerald Lake, west of Redwood City. 152 Comment
  UC766744  Allium lacunosum R. F. Hoover 1941-4-23 4910 San Mateo Redwood City hills Comment
  CAS-BOT-BC471097  Allium lacunosum var. lacunosum H. L. Dale 1920-6-1 s.n. San Mateo Near Menlo Park Comment
  CAS-BOT-BC132025  Allium peninsulare var. franciscanum Paul Arnaud 1941-4-19 s.n. San Mateo Redwood City - Hills - after Hesler farm entrance Comment
  CAS-BOT-BC132026  Allium peninsulare var. franciscanum D. E. Breedlove 1963-5-13 4942 San Mateo On the SE corner of the junction of Crystal Springs Road and Polhemus Road, W of San Mateo 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
  RSA176772  Allium peninsulare var. franciscanum D. E. Breedlove 1963-5-13 4942 San Mateo SE corner of the jct. of Crystal Springs Road and Polhemus Road, west of San Mateo Comment
  CAS-BOT-BC474305  Allium unifolium J. H. Thomas 1949-6-4 570 San Mateo Along the coast, 1.4 miles south of road to Pescadero Comment
  CAS-BOT-BC474306  Allium unifolium L. R. Abrams 1922-5-25 s.n. San Mateo Emerald Lake, back of Redwood City Comment
  JROH1325  Alnus rhombifolia John H. Thomas 1965-1-29 10550 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below dam Comment
  CAS-BOT-BC169347  Alnus rubra S. B. Show 1907-2-18 19 San Mateo VIcinity of Stanford University Comment
  SEINET3917721  Alopecurus aequalis Lewis S. Rose 1932-5-3 32209 San Mateo San Bruno.; 0 183 Comment
  RSA6311  Alopecurus saccatus D. D. Keck 1932-5-6 1472 San Mateo Burlingame. Comment
  RSA107065  Amaranthus deflexus L. S. Rose 1956-9-1 56154 San Mateo Atherton 6 Comment
  RSA121069A  Amaranthus deflexus J. T. Howell 1956-6-20 31631 San Mateo Along El Camino Real, San Carlos Comment
  RSA140626  Amaranthus deflexus John H. Thomas 1960-6-25 8784 San Mateo Redwood City, in vacant lot near Main and Stambaugh Streets 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
  SEINET3146786  Ambrosia chamissonis L. S. Rose 1938-8-14 38226 San Mateo El Granada 3 Comment
  SEINET11855110  Ambrosia chamissonis Unknown 1932-1 9245 San Mateo Half Moon Bay Comment
  RSA416939  Ambrosia chamissonis var. chamissonis Edith A. Purer 1933-7-27 5376 San Mateo 2 mi. S of Pigeon Pt. Comment
  RSA416938  Ambrosia chamissonis var. chamissonis D. D. Keck 1931-10-5 1285 San Mateo 1 mile north of Salada Beach, 200 meters from the ocean. Comment
  POM139596  Amelanchier pallida L. R. Abrams 1916-4-22 5577 San Mateo Pilarcitos Canyon 3 Comment
  RSA175131  Amelanchier pallida Robert F. Thorne 1963-6-9 32232 San Mateo On top of San Bruno Mountain on Kamchatka Point near the TV tower. 335 Comment
  JEPS13156  Ammannia coccinea V. F. Hesse 1955-10-10 1719 San Mateo 4 mi from Pescadero (near Butano road) Comment
  CAS-BOT-BC27473  Amsinckia maculata Alice Eastwood 1915-6-13 4723 San Mateo Granada Comment
  JROH1346  Amsinckia menziesii John H. Thomas 1967-6-1 12950 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
  UCD14397  Anagallis arvensis Marcy Dickenson 1983-4-23 120 San Mateo San Mateo Co.; on Jasper Ridge, at the Stanford Biological Preserve, within 1 mile of Westridge Road entrance; Comment
  JROH3370  Anagallis minima John H. Thomas 1961-4-29 9180 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1125507  Anaphalis margaritacea T. Tyrrell 1928-9-26 10 San Mateo Pomponio Creek; Santa Cruz Quad. 91 Comment
  CAS-BOT-BC45191  Anaphalis margaritacea W. R. Dudley 1894-7-28 s.n. San Mateo Between Pescadero and La Honda Comment
  CAS-BOT-BC391911  Anemone grayi A. D. E. Elmer 1903-4-1 4844 San Mateo King's Mountain Comment
  CAS-BOT-BC391922  Anemone grayi George Oberlander 1950-3-18 354 San Mateo San Francisco Watershed Reserve. On Cahill Ridge Comment
  CAS-BOT-BC391923  Anemone grayi Mrs. H. M. Mitchell 1932-3-31 s.n. San Mateo Skyline Boulevard Comment
  CAS-BOT-BC273188  Anisocarpus madioides David D. Keck 1932-5-11 1497 San Mateo Above Woodside on La Honda road, east slope of Santa Cruz Mtns. 230 Comment
  UC917258  Anisocarpus madioides W. A. Harvey and J. M. Tucker 1948-6-29 1704 San Mateo just w junction with Highway 5 (Skyline Blvd.) (beside road to Portola State Park) Comment
  JROH510  Anthemis cotula John Hunter Thomas 1985-5-21 23668 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the low-flow crossing of San Francisquito Creek Comment
  CAS-BOT-BC102290  Anthemis cotula Saichi Kawahara 1968-7-29 458 San Mateo Old Stage Road, south bank of Pomponio Creek 36 Comment
  CAS-BOT-BC102291  Anthemis cotula George Oberlander 1954-5-21 154 San Mateo Upper San Mateo Creek Comment
  CAS-BOT-BC280649  Anthoxanthum occidentale A. D. E. Elmer 1902-3-1 4124 San Mateo King's Mt. Comment
  JROH193  Anthriscus caucalis John H. Thomas 1966-4-22 11571 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH194  Anthriscus caucalis John H. Thomas 1967-5-31 12921 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH200  Anthriscus caucalis John H. Thomas 1975-4-30 17843 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC454477  Aphanes occidentalis John H. Thomas 1964-4-30 10371 San Mateo San Bruno Mountain in Northern part of county. 396 Comment
  JROH3610  Aphanes occidentalis John Hunter Thomas 1987-4-4 24170 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC454490  Aphanes occidentalis Margaret A. Barry 1937-5-8 68 San Mateo Exposed Slopes of Coal Mine Ridge Comment
  CAS-BOT-BC454491  Aphanes occidentalis Ned Cahill 1975-1-8 387 San Mateo Northside of serpentine outcropping in field bordered by chapparal near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City Comment
  RSA131269  Apocynum pumilum var. rhomboideum H. L. Mason 1931-7-14 s.n. San Mateo Pescadero Creek, La Honda Road. Comment
  CAS-BOT-BC451566  Aponogeton distachyos Peter Rubtzoff 1956-4-2 1767 San Mateo Skyline Blvd. near the junction of Chinese Cemetery Road. Comment
  UC1537326  Aquilegia formosa Gordon H. True Jr. 1936-4-5 388 San Mateo canyon betw san Gregorio adn Pescadero 152 Comment
  CAS-BOT-BC17330  Arabis blepharophylla Lewis S. Rose 1933-3-19 33027 San Mateo South San Francisco. Comment
  JEPS90201  Arabis blepharophylla Dean W. Taylor 1988-3-16 9407 A San Mateo Santa Cruz Mountains, summit of San Bruno Mountain, along fire road 120 m e from summit parking lot San Bruno Mountain; Santa Cruz Mountains, San Bruno Mountain 371 Comment
  JEPS90964  Arabis blepharophylla Dean W. Taylor 1992-3-19 12334 San Mateo in saddle just e of San Pedro Mountain reached via old paved road from San Pedro Valley (Santa Cruz Mountains, Montara Mountain); Santa Cruz Mountains, Montara Mountain 274 Comment
  UC311117  Arabis blepharophylla A. D. E. Elmer Apr 1903 4936 San Mateo San Bruno Hills Comment
  UCR64488  Arabis blepharophylla Lincoln Constance, R. Bacigalupi, C. R. Bell 1951-3-25 s.n. San Mateo SE side of Colma Canyon 61 Comment
  CAS-BOT-BC17325  Arabis blepharophylla W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Peninsula. 1st high hill between Salado Valley and Colma. Comment
  RSA0125507  Arabis blepharophylla Glenn A. Gorelick 1967-2-10 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  UC876368  Arbutus menziesii E. W. Rust 1907-4-22 131 San Mateo vicinity of Stanford Unifersity (King's Mountain); Northern California, King's Mountain 274 Comment
  UCSB11754  Arbutus menziesii Olson, Jim 1962-4-17 San Mateo 1 mile south of La Honda on Skyline Boulevard 670 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
  SEINET12001814  Arctostaphylos andersonii W. R. Dudley 1906-1 6 San Mateo near Crystal Springs Lake, Santa Cruz Mts., Santa Cruz Peninsula Comment
  CAS-BOT-BC23547  Arctostaphylos crustacea W. R. Dudley 1899-5-14 s.n. San Mateo Hills by road from San Andreas Lake to Pilarcitos Comment
  CDA29071  Arctostaphylos crustacea D. G. Kelch 2009-6-9 9 .399 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  JROH1933  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1974-4-25 17208 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville end of ridge Comment
  JROH1939  Arctostaphylos crustacea subsp. crustacea John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA681637  Arctostaphylos densiflora Annuschka Deb 1989-1-27 5 San Mateo Woodside. Comment
  JEPS48588  Arctostaphylos glandulosa subsp. glandulosa James G. Daly 1934-1-1 572 San Mateo Sierra Morena Santa Cruz Mts., San Gregorio Watershed (sw San Mateo Co.) Comment
Read comments
Feb 5 2016
  CAS-BOT-BC24451  Arctostaphylos imbricata James B. Roof 1961-4-18 s.n. San Mateo From ne. face of San Bruno Mountain, northern San Mateo Co. 335 Comment
  CAS-BOT-BC24482  Arctostaphylos imbricata R. F. Hoover 1964-4-24 8742 San Mateo San Bruno Mt., n. side near summit. Comment
  CAS-BOT-BC24488  Arctostaphylos imbricata Lewis S. Rose 1955-2-25 55002 San Mateo San Bruno Hills. Type Locality. Comment
  CAS-BOT-BC24499  Arctostaphylos imbricata B. A. Stein 1981-3-1 442 San Mateo San Bruno Mt., ne. summit ridge along Radio Rd. 396 Comment
  RSA70707  Arctostaphylos imbricata L. S. Rose 1951-3-13 51001 San Mateo San Bruno Hills. 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
  RSA380853  Arctostaphylos montaraensis Roman Gankin 1966-5-17 740 B San Mateo slopes of Montara Mountain Comment
  SEINET11993723  Arctostaphylos montaraensis W. Knight, Knight, I.; Wells, P. V. 1986-1 5373 San Mateo San Bruno Mountain 343 Comment
  CAS-BOT-BC44701  Arctostaphylos regismontana A. D. E. Elmer 1903-3-1 4537 San Mateo Kings Mt. Comment
  CAS-BOT-BC44706  Arctostaphylos regismontana Lewis S. Rose 1955-2-21 55001 San Mateo Kings Mountain 609 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
  RSA636747  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24627 San Mateo NW side of Montara Mtn. 150 Comment
  RSA636750  Arctostaphylos regismontana Jon E. Keeley, Melanie Baer Keeley 1993-9-8 24636 San Mateo NW side of Montara Mtn. 150 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
  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
  UC1121491  Arctostaphylos tomentosa subsp. crinita G. E. Sindel 1935-7-31 319 San Mateo 1/2 mi n Pomponio Creek (near Plot #292); Santa Cruz Quadrangle Comment
  POM299443  Arctostaphylos tomentosa subsp. crustacea L. S. Rose 1942-3-30 42007 San Mateo Kings Mountain. 183 Comment
  RSA636846  Arctostaphylos tomentosa subsp. crustacea Jon E. Keeley, Melanie Baer-Keeley 1993-9-8 24642 San Mateo NW side of Montara Mtn. 150 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
  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
  SEINET11987488  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4204 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from San Bruno Mt Comment
  SEINET11989207  Arctostaphylos uva-ursi var. suborbiculata E. McClintock, Knight, W.; Knight, I. 1982-1 4636 San Mateo Kamchatka Point, San Bruno Mountains Comment
  CAS-BOT-BC102182  Argyranthemum foeniculaceum Elizabeth McClintock 1988-6-7 s.n. San Mateo San Bruno Comment
  CAS-BOT-BC47696  Armeria maritima subsp. californica Alice Eastwood 1915-6-13 4712 San Mateo Granada Comment
  JROH516  Artemisia californica John H. Thomas 1964-11-29 10538 San Mateo Jasper Ridge Biological Preserve, Stanford University; E end of Searsville Dam Comment
  RSA51355  Artemisia californica L. S. Rose 1949-9-11 49179 San Mateo Montara Point. Comment
  JROH522  Artemisia douglasiana John Hunter Thomas 1982-7-2 21057 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  UC892419  Artemisia douglasiana Lewis S. Rose 1938-8-18 38232 San Mateo San Mateo 30 Comment
  CAS-BOT-BC93933  Artemisia douglasiana George Oberlander 1949-9-25 380 San Mateo San Francisco Watershed Reserve, along stream entering San Andreas Lake Comment
  RSA116777  Artemisia douglasiana Josephine Randall 1907-6-29 53 San Mateo Santa Cruz Penninsula, Portola road Comment
  CAS-BOT-BC90859  Artemisia pycnocephala Elsie M. Zeile 1921-7-30 1142 San Mateo Salada Comment
  POM165704  Asarum caudatum A. D. E. Elmer 1903-06 s.n. San Mateo Butano Creek Comment
  JROH428  Asclepias fascicularis Richard L. Garber 1971-7-13 57 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA107478  Aster radulinus L. S. Rose 1955-9-19 55174 San Mateo Skyline Boulevard, 7 miles west of Saratoga. 686 Comment
  JEPS21679  Astragalus gambelianus W. R. Dudley 1894-4-21 San Mateo below Crystal Springs Dam (Santa Cruz Peninsula); , below Crystal Springs Dam Comment
  JROH1985  Astragalus gambelianus John H. Thomas 1956-4-7 5614 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1990  Astragalus gambelianus John H. Thomas 1968-5-3 14448 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1996  Astragalus gambelianus John Hunter Thomas 1984-4-2 23273 3 C San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge fence Comment
  SEINET948341  Astragalus gambelianus Lois E. James 1946-1 1741 San Mateo Serpentine hills back of redwood city. High Road off Woodside Road. Comment
  CAS-BOT-BC177971  Astragalus nuttallii var. virgatus A. A. Heller 1906-6-8 8385 San Mateo Near Ocean View, San Francisco, on the Lake Merced side of the Ocean Shore tracks in soil. Comment
  SD37525  Astragalus nuttallii var. virgatus Edith A. Purer 1933-8-13 5405 San Mateo Small bottom, Santa Clara Valley, near Baden Station. Comment
  CAS-BOT-BC193092  Astragalus pycnostachyus var. pycnostachyus J. H. Thomas 1958-8-1 7372 San Mateo Just north of mouth of San Gregorio Creek 30 Comment
  CAS-BOT-BC193093  Astragalus pycnostachyus var. pycnostachyus Alice Eastwood; John Thomas Howell 1938-6-26 6057 San Mateo Near Pescadero Comment
  CAS-BOT-BC17587  Athysanus pusillus Peter H. Raven 1951-2-18 2734 San Mateo Summit Ridge San Bruno Mountains. Comment
  UC136114  Athysanus pusillus C. F. Baker 1902-4-6 456 San Mateo Crystal Springs Lake Comment
  POM195304  Atriplex californica H. M. Hall 1922-5-17 11805 San Mateo Point Montara. Comment
  UCD39016  Atriplex californica Beecher Crampton 1962-6-11 6514 San Mateo Pacifica, Rockaway Beach, State Hwy. 1. Comment
  SJSU16064  Atriplex prostrata Toni Corelli 2009-9-9 440 San Mateo Half Moon Bay State Beach, in low dunes Comment
  UC463562  Atriplex triangularis L. R. Abrams and I. L. Wiggins 1930-11-13 175 San Mateo Skyline Blvd. 1 mi sw Colma; sw of Colma Comment
  JROH4840  Avena barbata John H. Thomas 1967-5-12 12870 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA254228  Avena barbata Robert A. Norris 1975-3-21 2289 San Mateo Hilly grassland near Crocker Ave., San Bruno Mts. Comment
  RSA291578  Avena barbata T. C. Fuller 1969-6-12 18549 San Mateo on south facing slope of hillside pasture 3 km. east of Pescadero Comment
  RSA187167  Avena barbata John H. Thomas 1954-4-3 3836 San Mateo Pilarcitos Creek Road, 3.5 miles NE of Halfmoon Bay., Lat. N 37 29.5, Long 122.5 W. 122 Comment
  CAS-BOT-BC145999  Avena fatua John H. Thomas 1971-5-2 15869 E San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City. 152 Comment
  JROH4846  Avena fatua W. Lennihan 1990-4-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Across parking lot from picnic tables. Comment
  JROH5  Azolla filiculoides S. F. Blake 1927-6-24 9944 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  UC202031  Azolla filiculoides Dr. P. B. Kennedy 1917-4-29 San Mateo Colma Creek in San Francisco Comment
  RSA226539  Baccharis douglasii E. K. Balls 1969-9-18 12172 San Mateo 5 miles south of junction Highway 84 and Highway 35 along La Honda Road. Comment
  RSA0025138  Baccharis douglasii Peter Rubtzoff 1976-10-5 8908 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Westernmost part of the area on slope across fence. Comment
  JROH541  Baccharis glutinosa John Hunter Thomas 1982-7-22 21089 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG33931  Baccharis glutinosa L. S. Rose 1969-8-22 69099 San Mateo Skyline Blvd and La Honda Rd 609 Comment
  CAS-BOT-BC99522  Baccharis pilularis Ned Cahill 1974-4-30 240 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC99528  Baccharis pilularis P. C. Everett 1934-8-19 6068 San Mateo Pescadero 198 Comment
  POM87046  Baccharis pilularis F. W. Peirson 1925-9-13 6425 San Mateo Rockaway beach. Comment
  UC484307  Baccharis pilularis Carl B. Wolf 1930-11-5 San Mateo 4 mi s Pescadero 7 Comment
  UC1119670  Baccharis pilularis G. E. Sindel 1935-10-18 381 San Mateo 1 3/8 mi n of Langley Hill; Santa Cruz Quad. 518 Comment
  UCSC007721  Baccharis pilularis Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC16623  Barbarea orthoceras Fred Hemphill 1973-3-9 704 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  JROH1454  Barbarea orthoceras John Hunter Thomas 1989-4-20 24643 San Mateo Jasper Ridge Biological Preserve, Stanford University; to below the dam Comment
  POM272597  Barbarea vulgaris Lyman Benson 1929-3-15 1009 San Mateo Bank of San Francisquito Creek at Stanford Isolation Hospital. Comment
  RSA152071  Bellardia trixago John H. Thomas 1961-5-5 9223 San Mateo Along Sandhill road about 3.5 miles westward from Stanford Univ. 91 Comment
  RSA162481  Bellardia trixago E. K. Balls 1963-5-22 12066 San Mateo 2.7 mi. S. from Half Moon Bay, along State Hwy. 1. 15 Comment
  CAS-BOT-BC100192  Bellis perennis Elizabeth McClintock 1967-9-24 s.n. San Mateo Crocker Avenue Comment
  CAS-BOT-BC100193  Bellis perennis Walter Knight; Irja Knight 1964-9-2 s.n. San Mateo Crocker Avenue Comment
  UC662425  Bidens pilosa H. P. Chandler 1941-12-4 San Mateo 1/2 mi e of Half Moon Bay (along highway) Comment
  NY31023  Blennosperma californicum A. D. E. Elmer 05 1903 4521 San Mateo San Bruno Hills Comment
  POM55208  Blennosperma nanum var. robustum A. D. E. Elmer 1903-04 s.n. San Mateo San Bruno Hills Comment
  CAS-BOT-BC28211  Bolboschoenus fluviatilis Ida R. Hayward 1927-7-4 s.n. San Mateo By road crossing Crystal Springs Lake. Comment
  CAS-BOT-BC31088  Bolboschoenus maritimus Ira L. Wiggins 1980-8-29 22258 San Mateo Bed and lower bank of San Francisquito Creek, ca 200 m upstream from Pope St Bridge Comment
  SJSU15760  Bolboschoenus maritimus subsp. paludosus Toni Corelli 2009-9-22 430 San Mateo Pomponio State Beach west of Hwy. 1 4 Comment
  CAS-BOT-BC95346  Bowlesia incana C. F. Baker 1902-4-12 510 San Mateo La Honda Comment
  JROH205  Bowlesia incana Toni Corelli 2004-4-22 273 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9 buckeye alley understory 126 Comment
  CAS-BOT-BC420227  Boykinia occidentalis W. R. Dudley 1895-6-6 s.n. San Mateo Banks of Pescadero Creek above Iverson's Comment
  CDA31372  Brachypodium sylvaticum Robin Breckenridge, K. Filippini 2010-2-17 PDR# 1463751 San Mateo Woodside: 1 Echo Lane. 0 Comment
  CDA43034  Brachypodium sylvaticum T. Hyland 2014-10-22 PDR# MVAP 06099366 San Mateo Upper China Grade. Comment
  SEINET10481265  Brassica campestris David D. Keck 1932-2-16 Keck 1377 San Mateo Portola. Common in cultivated orchards, roadsides, etc. 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
  CAS-BOT-BC36794  Brassica rapa John H. Thomas 1965-4-29 10605 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC36799  Brassica rapa David D. Keck 1932-2-16 1377 San Mateo Portola. Comment
  JROH1469  Brassica rapa John Hunter Thomas 1981-4-7 20295 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Whiskey Hill and Sand Hill Road gate Comment
  CAS-BOT-BC145335  Briza minor Paul Arnaud 1941-4-17 s.n. San Mateo Redwood City, Jefferson Avenue. Comment
  CAS-BOT-BC145336  Briza minor David D. Keck 1932-4-18 1433 San Mateo Burlingame. On the shore of San Francisco Bay. 2 Comment
  CAS-BOT-BC145342  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos. Comment
  CAS-BOT-BC145343  Briza minor A. D. E. Elmer 1903-5-1 4912 San Mateo Crystal Springs Lake. Comment
  POM199078  Briza minor A. D. E. Elmer 1903-05 4912 San Mateo Crystal Springs Lake. Comment
  UCD57435  Briza minor A. A. Beetle 1941-4-20 1738 San Mateo Near San Carlos. Comment
  CAS-BOT-BC482181  Brodiaea appendiculata J. C. Chamberlain 1922-1-1 s.n. San Mateo Fields near San Francisquito Creek back of Stanford University Comment
  UCSB841  Brodiaea coronaria Walker, Clifford 1954-4-20 San Mateo Corner of Jefferson and Canada Rds. Comment
  SEINET12044664  Brodiaea terrestris P. R. Hichborn 1920-1 s.n. San Mateo near Spring Valley Lakes, Santa Cruz Mountain Peninsula Comment
  POM169611  Brodiaea terrestris subsp. terrestris C. F. Baker 1902-4-6 462 San Mateo Crystal Springs Lake. Comment
  SJSU658  Brodiaea terrestris subsp. terrestris A. W. Jacobs 1941-4-20 San Mateo Jasper Ridge above Searsville Lake Comment
  UC843571  Brodiaea terrestris subsp. terrestris Alice Eastwood 1912-6-10 334 San Mateo Crystal Springs Comment
  CAS-BOT-BC483181  Brodiaea terrestris subsp. terrestris Le Roy Abrams 1902-5-4 2427 San Mateo Near Woodside Comment
  POM88018  Bromus berteroanus Le Roy Abrams 1902-5-4 2409 San Mateo Woodside. Comment
  POM286978  Bromus carinatus Lyman Benson 1930-4-17 2079 a San Mateo Stanford University. Corte Madera Creek. 122 Comment
  CAS-BOT-BC148976  Bromus carinatus var. carinatus Lewis S. Rose 1956-5-7 56069 San Mateo Skyline Boulevard west of San Mateo. 182 Comment
  CAS-BOT-BC148981  Bromus carinatus var. carinatus Peter H. Raven 1950-6-3 2253 San Mateo Woods around San Andreas Lake. 121 Comment
  JROH4897  Bromus carinatus var. carinatus John Hunter Thomas 1988-5-16 24466 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  JROH4899  Bromus carinatus var. carinatus W. Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. S.F. Creek Trail -- east side trail. Comment
  CAS-BOT-BC148764  Bromus carinatus var. marginatus Ira L. Wiggins 1929-5-10 3672 San Mateo At Pigeon Point. Comment
  UCD58325  Bromus catharticus John Thomas Howell 1956-5-23 31446 San Mateo El Camino Real at Atherton Ave. Menlo Park. Comment
  JROH4908  Bromus catharticus var. catharticus Ann Lambrecht 2006-8-23 28 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry streambed below Dennis Martin marker Comment
  CAS-BOT-BC155840  Bromus catharticus var. elatus Dale Beltz 1956-5-23 s.n. San Mateo Belmont. Comment
  CAS-BOT-BC155841  Bromus catharticus var. elatus John Thomas Howell 1956-5-23 21446 San Mateo Menlo Park. El Camino Real at Atherton Avenue. Comment
  RSA101049  Bromus diandrus G. Oberlander 1949-5-13 188 San Mateo San Andreas Valley, San Francisco Watershed Reserve 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
  UCD164419  Bromus diandrus Peter Rubtzoff 1977-6-21 9056 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  CAS-BOT-BC155138  Bromus hordeaceus Ned Cahill 1974-4-29 190 San Mateo Near the intersection of Canada and Edgewood Roads, about 3 miles westward from Redwood City. Comment
  CAS-BOT-BC155162  Bromus hordeaceus Duncan M. Porter 1960-4-29 667 San Mateo Above Webb Ranch, Jasper Ridge Biological Preserve. Quadrant H-4. Comment
  JEPS128403  Bromus hordeaceus Adam C. Schneider 2013-5-17 130 San Mateo Crystal springs Reservoir. Comment
  CAS-BOT-BC162309  Bromus madritensis Paul Arnaud 1941-4-17 s.n. San Mateo Redwood City, Jefferson Avenue. Comment
  JROH4958  Bromus madritensis subsp. rubens John Rawlings 2013-4-30 1181 B San Mateo Jasper Ridge Biological Preserve, Stanford University; along Road B near south boundary fence 78 Comment
  CAS-BOT-BC162230  Bromus maritimus R. S. Ferris 1921-5-28 2193 San Mateo Pescadero. Pebble Beach. Comment
  SJSU15908  Bromus maritimus John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1733 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  UCD59044  Bromus maritimus Roxana S. Ferris 1920-4-27 1981 San Mateo Santa Cruz Mountain Peninsula. Ano Nuevo. 0 Comment
  CAS-BOT-BC161748  Bromus rubens Fred Hemphill 1973-4-15 679 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  OBI22458  Bromus sitchensis Lewis S. Rose 1963-4-27 63003 San Mateo Skyline Blvd, W of San Mateo 91 Comment
  SEINET3923305  Bromus stamineus Lewis S. Rose 1963-4-27 63002 San Mateo Skyline Blvd, open hills, west of San Mateo.; 0 91 Comment
  JROH4962  Bromus sterilis John Rawlings 2013-4-9 1149 San Mateo Jasper Ridge Biological Preserve, Stanford University. Verge of Rd L near Ranger Bath. 107 Comment
  POM144327  Cakile edentula C. F. Baker 1902-10-1 1746 San Mateo Pillar Point. Comment
  UC1301004  Cakile maritima Helen K. Sharsmith 1963-3-23 5251 San Mateo near Half Moon Bay; San Francisco Bay Region Comment
  UC765080  Cakile maritima R. F. Hoover 1941-2-12 4753 San Mateo Half Moon Bay Comment
  RSA30868  Cakile maritima R. C. Rollins 1942-11-4 3032 San Mateo Miramar Beach, about 5 miles N of Half Moon Bay. Comment
  SJSU9863  Calamagrostis rubescens S. H. Casey 1975-6-20 556 San Mateo Dean Trail, Huddert Park W of Woodside Comment
  JROH3321  Calandrinia ciliata John H. Thomas 1967-5-10 12847 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1633  Callitriche marginata John H. Thomas 1968-3-17 14193 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1634  Callitriche marginata John H. Thomas 1968-3-31 14259 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1637  Callitriche marginata John H. Thomas 1971-4-25 15780 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1639  Callitriche marginata John H. Thomas 1973-2-12 16452 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD123519  Callitriche trochlearis W. R. Dudley 1904-4-23 s.n. San Mateo Santa Cruz Mountain Peninsula; Crow foot pond on Alpine Road, opposite the Fitzpatrick Place. Comment
  CAS-BOT-BC492213  Calochortus albus Fred Hemphill 1973-5-6 757 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JROH4602  Calochortus albus John H. Thomas 1973-5-5 16760 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4608  Calochortus albus John Hunter Thomas 1981-4-30 20520 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD656  Calochortus albus lysses S. Grant IV Jun 1925 San Mateo Near La Honda. Comment
  UCR104959  Calochortus albus Tom Paradise 1993-5-3 11 San Mateo San Francisco Bay area, Woodside; Huddart County Park, along Kings Mountain Road, 3 - 4 mi east of Skyline Blvd. 116 Comment
  CAS-BOT-BC492219  Calochortus albus Daniel Cohen 1953-6-3 105 San Mateo Los Trancos Woods. Comment
  CAS-BOT-BC492220  Calochortus albus Otto M. Sokol 1953-5-29 117 San Mateo Bear Creek Road Comment
  JROH4631  Calochortus luteus John H. Thomas 1971-5-30 15960 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4641  Calochortus luteus John Hunter Thomas 1989-5-30 24753 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near dam Comment
  CAS-BOT-BC491979  Calochortus luteus Otto M. Sokol 1953-5-29 113 San Mateo Near Sharon Estate, along Sand Hill Road Comment
  JEPS23925  Calochortus tolmiei Le Roy Abrams 1902-5-20 2473 San Mateo Kings Mountain Comment
  CAS-BOT-BC493992  Calochortus tolmiei Joy H. Ozer 1963-6-9 59 San Mateo Southern boundary of Portola State Park. 609 Comment
  CAS-BOT-BC493993  Calochortus tolmiei Carl B. Wolf 1929-5-22 3722 San Mateo Near base of LaHonda grade, Santa Cruz Mts. 182 Comment
  CAS-BOT-BC496827  Calochortus tolmiei W. R. Dudley 1895-6-6 s.n. San Mateo Dry woods near Pescadero Creek Comment
  RSA18382  Calochortus venustus Carl B. Wolf 1927-7-1 526 San Mateo Above Emerald Lake, back of Redwood City Comment
  JROH573  Calycadenia multiglandulosa John Hunter Thomas 1987-5-5 24252 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH574  Calycadenia multiglandulosa John Hunter Thomas 1987-6-7 24335 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC224651  Calystegia purpurata subsp. purpurata Lewis S. Rose 1950-5-20 50141 San Mateo Emerald Lake region, hills w. of Redwood City 243 Comment
  CAS-BOT-BC224668  Calystegia purpurata subsp. purpurata Elizabeth McClintock 1965-6-13 s.n. San Mateo San Bruno Mountain. Lower slope on south side above Olivet Cemetery Comment
  HSC59092  Calystegia purpurata subsp. purpurata Clark L. Miller 1978-6-15 159 San Mateo Off old Hwy. 1, about 4 mi. S of Half Moon Bay Comment
  UC909351  Calystegia soldanella Ira L. Wiggins 1950-5-20 12351 San Mateo Pescadero Beach Pescadero Beach (upper margin beach) Comment
  RSA130597  Camissonia ovata Lucile Roush 1918-3-31 s.n. San Mateo Santa Cruz Peninsula; foot of Sierra Morena Comment
  UC168532  Camissonia strigulosa Katharine Brandegee June 1905 San Mateo Colma Comment
  CAS-BOT-BC160324  Camissoniopsis cheiranthifolia subsp. cheiranthifolia W. R. Dudley 1901-7-5 s.n. San Mateo Pescadero Comment
  CAS-BOT-BC160327  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Robt. T. Orr 1961-6-27 s.n. San Mateo [Ano] Ano Nuevo Island Comment
  UC1736718  Camissoniopsis hirtella Dean W. Taylor 1989-8-1 10411 San Mateo Montara Mountain, saddle between North Peak and Montara Knob 518 Comment
  JEPS43863  Camissoniopsis micrantha William S. Cooper 1925-5-28 14 San Mateo Salada Comment
  JROH1643  Campanula griffinii John H. Thomas 1975-5-26 17905 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1644  Campanula griffinii John Hunter Thomas 1983-6-2 22332 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC153882  Campanula prenanthoides L. R. Abrams 1907-8-26 San Mateo Kings Mt. Comment
  POM209849  Campanula prenanthoides D. D. Keck 1934-7-7 2929 San Mateo Kings Mountain, west of summit 610 Comment
  SEINET10463048  Campanula prenanthoides David D. Keck 1934-7-7 Keck 2929 San Mateo Kings Mountain, west of summit 610 Comment
  SEINET10840327  Campanula prenanthoides Leithold 1894-7-28 LEITHOLD s.n. San Mateo LA HONDA ROAD Comment
  JROH1471  Capsella bursa-pastoris John H. Thomas 1974-4-6 17094 San Mateo Jasper Ridge Biological Preserve, Stanford University; along path west side of dam Comment
  SBBG51277  Capsella bursa-pastoris J. Doty 1969-3-24 582 San Mateo N side of Embarcadero Rd, just W of W boundary of Byxbee Marshlands Wildlife Preserve, Menlo Park 1 Comment
  CAS-BOT-BC37664  Cardamine californica Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountains. Cable Ravine. Comment
  CAS-BOT-BC37674  Cardamine californica Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountains. From Trillium Gulch. Comment
  CAS-BOT-BC37679  Cardamine californica LeRoy Ellsworth Detling 1934-5-13 s.n. San Mateo Summit of La Honda Grade. Comment
  CAS-BOT-BC37683  Cardamine californica Margaret A. Barry 1937-5-15 135 San Mateo On the south side of Coal Mine Ridge. Comment
  JROH1483  Cardamine californica John H. Thomas 1969-4-12 14884 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH1484  Cardamine californica John Hunter Thomas 1982-4-4 20822 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC37669  Cardamine californica Reed Clark Rollins 1941-3-16 2943 San Mateo Santa Cruz Mountains. East slope of Kings Mountain, 6 miles west of Woodside. Comment
  POM272922  Cardamine californica var. integrifolia Lyman Benson 1931-2-28 2614 San Mateo Town: Woodside; Mt. Range: Santa Cruz; River: San Francisquito Cr. 183 Comment
  UC1301008  Cardamine californica var. integrifolia Helen K. Sharsmith 1963-2-16 5132 San Mateo slopes San Bruno Mountain (above Daly City); San Francisco Bay Region, , Daly City 106 Comment
  UC136067  Cardamine californica var. sinuata C. F. Baker 1902-4-12 501 San Mateo La Honda Comment
  JROH1487  Cardamine oligosperma Le Roy Abrams 1901-3-1 1118 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  JROH1489  Cardamine oligosperma Roxana Stinchfield 1914-2-28 155 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  JROH1500  Cardamine oligosperma John Hunter Thomas 1985-4-10 23515 San Mateo Jasper Ridge Biological Preserve, Stanford University; Whiskey Hill gate Comment
  NY38978  Carex aequa E. L. Greene 1902-5-10 811 San Mateo Crystal Springs Lake Comment
  RSA159424  Carex amplifolia John H. Thomas 1961-5-14 9365 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  CAS-BOT-BC17855  Carex amplifolia Peter Rubtzoff 1953-5-14 1345 San Mateo Pilarcitos Creek Canyon 1 to 2 miles downtreams from Pilarcitos Lake. Comment
  RSA101006  Carex amplifolia G. Oberlander 1950-5-21 958 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve Comment
  SEINET7484300 Image available Carex barbarae Peter F. Zika 2010-1 24798 San Mateo Pescadero Road, c. 1 mile SE of Route 1 10 Comment
  SJSU15909  Carex barbarae John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1734 San Mateo Bean Hollow bluff trail west of Hwy 1 south of Pescadero 8 Comment
  UC767142  Carex bolanderi R. F. Hoover 1940-9-1 4547 San Mateo La Honda summit Comment
  CAS-BOT-BC19545  Carex bolanderi W. R. Dudley 1899-5-14 s.n. San Mateo Sant Cruz Mountain Peninsula. Ravine west of Upper San Mateo Creek. Comment
  RSA220059  Carex bolanderi Peter Rubtzoff 1953-5-14 1339 San Mateo Pilarcitos Creek Canyon, 1 to 2 miles downstream from Pilarcitos Lake. Comment
  JROH4328  Carex densa John H. Thomas 1967-6-1 12946 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM289944  Carex densa Lyman Benson 1930-5-1 2056 San Mateo Stanford University 107 Comment
  CAS-BOT-BC28411  Carex gracilior W. R. Dudley 1900-3-17 s.n. San Mateo A field N of Seal Cove Comment
  SEINET7560149 Image available Carex gracilior Charles Piper Smith 1905-4-26 874 San Mateo Portola Searsville Lake. 98 Comment
  CAS-BOT-BC21819  Carex harfordii W. R. Dudley 1925-6-12 s.n. San Mateo Pescadero Creek below Peters Creek. Comment
  POM248613  Carex harfordii J. T. Howell 1938-5-1 13781 San Mateo Near South San Francisco. Comment
  UCR279853  Carex obnupta Peter Rubtzoff 1978-5-18 9174 San Mateo San Francisco Bay Region, San Bruno Mountains, 'saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 220 Comment
  CDA34492  Carex subbracteata D. G. Kelch, David Gernandt, Steffi Ickert-Bond, Yingli Guo 2011-4-22 11 .176 San Mateo Swanton Rd just S of Ano Nuevo above Weddell Creek. Comment
  RSA364769  Carex subbracteata L. S. Rose 1939-4-14 39063 San Mateo South San Francisco. 15 Comment
  CAS-BOT-BC115513  Carex tumulicola W. R. Dudley 1898-4-24 s.n. San Mateo El Corte Madera Comment
  UC826092  Carex tumulicola Wilhelm N. Suksdorf 1913-6-30 377 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC115512  Carex tumulicola W. R. Dudley 1906-5-13 s.n. San Mateo In oak woods, SW of San Mateo Comment
  UC824947  Carex vesicaria var. major W. R. Dudley May, 1894 San Mateo between Woodside and Crystal Springs; Santa Cruz Mountain Peninsula Comment
  CHSC81449  Carpobrotus edulis Sabrina Wright; Brandi Pedigo, Jessica Wright, Nicky Wright 2000-3-4 San Mateo Sharp Park Rd at Hwy 1, Pacifica. 15 Comment
  CDA20504  Carthamus creticus J. Beall 2004-8-6 PDR 1329641 San Mateo San Francisco Bay Area; at 60 Langley Hill Rd in La Honda. 0 Comment
  SD38139  Castilleja affinis Delzie Demaree 1932-4-9 3615 San Mateo Woods, Gov. Rolf Estate Comment
  CHSC57099  Castilleja affinis subsp. affinis Steven Triana 1988-5-24 200 San Mateo Along w side of Old La Honda Road ca 0.8 mi s of Portola Road and 4.0 mi s of Woodside. 201 Comment
  JEPS86227  Castilleja affinis subsp. affinis L. R. Heckard 1970-5-5 2452 San Mateo n side San Bruno Mountain (n spur) 60 Comment
  JEPS86438  Castilleja affinis subsp. affinis L. R. Heckard 1988-6-9 6679 San Mateo Pescadero Beach State Park Comment
  JROH3932  Castilleja affinis subsp. affinis D. D. Davis 1903-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  JROH3938  Castilleja affinis subsp. affinis John H. Thomas 1955-5-6 5013 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  JROH3942  Castilleja affinis subsp. affinis John H. Thomas 1974-4-25 17213 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3951  Castilleja affinis subsp. affinis John Hunter Thomas 1983-4-28 21780 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS103888  Castilleja affinis subsp. affinis T. I. Chuang 1991-7-6 7862 San Mateo 3 mi E of Fort Bragg, on route 20 Comment
  JEPS60429  Castilleja affinis subsp. affinis T. I. Chuang and F. M. Chuang 1969-6-22 6669 San Mateo 0.2 mi n San Mateo and Santa Cruz County line (on Highway 1) Comment
  SEINET7097933  Castilleja ambigua A. G. Vestal 1937-6-15 s.n. San Mateo Lat. 37 14' 13ao N, Long. 122 24' 55ao W (NAD27 converted to WGS84 decimal degrees) Pebble Beach west of Pescadero. UTM Zone 10, 551863 mE, 4121109 mN. Comment
  LA209419  Castilleja ambigua David D. Keck; 1932-4-29 1453 San Mateo Burlingame-San Mateo city limits Comment
  UCSC005957  Castilleja ambigua Randall Morgan 1995-6-6 2724 San Mateo Common at Bean Hollow State Beach Comment
  UCD40891  Castilleja densiflora Nancy Dickenson 1983-4-23 117 San Mateo Jasper Ridge. Stanford Biological Preserve within 1 mile of Westridge Road entrance. Comment
  JROH3973  Castilleja densiflora subsp. densiflora Robert Robertson 1954-4-23 93 San Mateo Jasper Ridge Biological Preserve, Stanford University 170 Comment
  JROH3974  Castilleja densiflora subsp. densiflora John H. Thomas 1956-4-7 5621 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  JROH3977  Castilleja densiflora subsp. densiflora John H. Thomas 1961-4-29 9189 San Mateo Jasper Ridge Biological Preserve, Stanford University; at western end of serpentine outcroppings Comment
  JROH3981  Castilleja densiflora subsp. densiflora John Hunter Thomas 1981-4-23 20472 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1012312  Castilleja densiflora subsp. densiflora F. W. Pennell and D. D. Keck 1940-5-15 25425 San Mateo 4 mi w Burlingame (Route 101) 152 Comment
  UC1063459  Castilleja exserta H. S. Yates 1935-5-8 5204 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  SEINET12288673  Castilleja foliolosa McCallum 1933-1 s.n. San Mateo in Los Trancus Woods Comment
  RSA428380B  Castilleja franciscana J. Doty 1969-3-26 595 San Mateo 100 yards E of jct Hwy 35 and 92, near summit of Caost Range, San Francisco Peninsula. Comment
  CAS-BOT-BC243828  Castilleja latifolia David D. Keck 1932-5-11 1768 San Mateo Two miles north of San Gregorio Comment
  CAS-BOT-BC243830  Castilleja latifolia John H. Thomas 1965-4-29 10613 San Mateo San Bruno Mountainin northern part of county 396 Comment
  SEINET7097932  Castilleja latifolia A. G. Vestal 1937-6-15 s.n. San Mateo Lat. 37 14' 13ao N, Long. 122 24' 55ao W (NAD27 converted to WGS84 decimal degrees). Pebble Beach west of Pescadero. UTM Zone 10, 551863 mE, 4121109 mN. Comment
  JROH4001  Castilleja rubicundula subsp. lithospermoides John H. Thomas 1978-5-12 19199 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC185345  Castilleja rubicundula subsp. lithospermoides Katharine Brandegee May 1905 San Mateo San Mateo Comment
  UC535783  Castilleja rubicundula subsp. lithospermoides Elmer I. Applegate 1895-5-11 392 San Mateo near Searsville Comment
  JEPS88830  Castilleja subinclusa subsp. franciscana T. I. and F. M. Chuang 1991-7-1 7848 San Mateo 0.8 mi n San Gregorio Beach Comment
  JEPS6917  Castilleja subinclusa subsp. franciscana Rimo Bacigalupi with J. R. Sweeney 1954-8-3 4740 San Mateo lower slopes Tunitas Canyon (about 2 mi above and e of junction of road ascending canyon with the old coast road) 167 Comment
  CAS-BOT-BC32580  Castilleja wightii Adolph Daniel Edward Elmer 1903-7-1 4761 San Mateo San Pedro Comment
  JEPS20780  Castilleja wightii Lawrence Beane 1949-6-2 484 San Mateo s of Pescadero (beyond lighthouse on hillside, Highway 1) Comment
  JEPS30402  Castilleja wightii James B. Roof, Irja Knight 1963-4-24 San Mateo slopes above Colma Canyon (nw end of San Bruno Mountain (in Daly City)); San Bruno Mountain, Daly City Comment
  POM15493  Castilleja wightii C. F. Baker 1902-05 799 San Mateo Kings Mt. Comment
  RSA428367  Castilleja wightii E. S. Spalding 1924-6-28 s.n. San Mateo Moss Beach Comment
  UC202800  Castilleja wightii A. D. E. Elmer Jul 1903 4761 San Mateo San Pedro; ; San Pedro, San Mateo Co. Comment
Read comments
Nov 23 2007
  UC729641  Castilleja wightii Carl B. Wolf 1929-5-25 3730 San Mateo s of Pescadero (Pebble Beach); Pebble Beach Comment
  JEPS34453  Castilleja wightii L. R. Heckard 1963-7-18 1341 San Mateo 2.7 mi s Calif. Hwy. 1 road junction with Pescadero road (along Calif Hwy. 1); Bean Hollow Beach County Park (Arroyo de los Frijoles) Comment
  JEPS60428  Castilleja wightii T. I. Chuang with F. M. Chuang 1969-6-22 6668 San Mateo 2.8 mi s Pescadero Point (on Highway 1) Comment
  JEPS6921  Castilleja wightii Rimo Bacigalupi with G. Thomas Robbins 1954-6-18 4553 San Mateo 0.25 mi w (and below) Alpine Road junction with road to Portola State Park (along Alpine Road) 426 Comment
  JEPS88840  Castilleja wightii T. I. and F. M. Chuang 1991-7-1 7849 San Mateo ca 7 mi s Halfmoon Bay Comment
  POM199579  Castilleja wightii Katherine Brandegee 1917-7-22 s.n. San Mateo Mussel Rock Station, Ocean Shore RR Comment
  RSA18358  Castilleja wightii Carl B. Wolf 1929-5-25 3730 San Mateo Just north of Pigeon Pt. Comment
  RSA219032  Castilleja wightii Walter Knight, I. Knight 1967-1-18 s.n. San Mateo Top of Quarry 4. San Bruno Mountain. Comment
  RSA21997  Castilleja wightii J. T. Howell 1938-5-1 13767 San Mateo Colma Canyon. Comment
  SEINET8212805  Castilleja wightii A. D. E. Elmer 1903-1 4761 San Mateo San Pedro. Comment
  JEPS127825  Caulanthus lasiophyllus Adam C. Schneider with C. Matt Guilliams 2013-3-29 24 San Mateo Comment
  JROH1523  Caulanthus lasiophyllus John H. Thomas 1963-3-20 10024 San Mateo Jasper Ridge Biological Preserve, Stanford University; near poppy knoll Comment
  JROH1524  Caulanthus lasiophyllus John H. Thomas 1967-5-31 12940 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1527  Caulanthus lasiophyllus John H. Thomas 1971-4-10 15759 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1529  Caulanthus lasiophyllus John Hunter Thomas 1981-4-27 20509 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC47935  Ceanothus J. H. Thomas 1949-3-29 189 San Mateo Kings Mountain Comment
  RSA399076  Ceanothus cuneatus L. H. Jones 1909-3-5 s.n. San Mateo Summit and W side of Jasper Ridge, Stanford University 198 Comment
Read comments
Sep 19 2011
  CAS-BOT-BC48307  Ceanothus cuneatus Volney Rattan 1884-3-1 s.n. San Mateo Rattan Ranch, Woodside Comment
  SEINET13945825 Image available Ceanothus cuneatus Lewis S. Rose 1964-1 64011 San Mateo Emerald Lake, west of Redwood City. Alt. ca 400 ft. 122 Comment
  CAS-BOT-BC48393  Ceanothus cuneatus var. cuneatus A. D. E. Elmer 1903-3-1 4578 San Mateo Portola Comment
  UCD112111  Ceanothus cuneatus var. cuneatus Lewis S. Rose 1964-3-23 64011 San Mateo Emerald Lake, west of Redwood City. 121 Comment
  CAS-BOT-BC49652  Ceanothus foliosus var. foliosus J. H. Thomas 1949-4-14 280 San Mateo Kings Mountain. Roadside near Woodside. Comment
  JROH3528  Ceanothus oliganthus var. sorediatus Arthur Spiegler 1952-4-12 12 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM136517  Ceanothus oliganthus var. sorediatus A. D. E. Elmer 1903-05 4479 San Mateo Towards San Mateo; Crystal Springs Lake. Comment
  RSA34326  Ceanothus oliganthus var. sorediatus Paul R. Hichborn 1920-4-21 s.n. San Mateo Strawberry bend near Carte Madera Creek Comment
  UC1071332  Ceanothus oliganthus var. sorediatus C. R. Clar 1928-11-6 7 San Mateo Langley Hills Santa Cruz quad. 670 Comment
  UC762254  Ceanothus papillosus R. F. Hoover 1941-5-20 5114 San Mateo Skyline Road sw Black Mt.; sw of Black Mt. Comment
  CAS-BOT-BC52282  Ceanothus thyrsiflorus Elizabeth McClintock 1972-5-10 s.n. San Mateo East of Kamchatka Point Comment
  CAS-BOT-BC52288  Ceanothus thyrsiflorus W. R. Dudley 1899-5-14 s.n. San Mateo Ravine on road from San Andreas to Palacios Comment
  CAS-BOT-BC52294  Ceanothus thyrsiflorus J. I. McMurphy 1906-5-8 12 San Mateo Woodside, Santa Cruz Mts. 121 Comment
  UC1537016  Ceanothus thyrsiflorus Gordon H. True Jr. 1937-3-31 615 San Mateo on Salada Beach Road 60 Comment
  UC79918  Ceanothus thyrsiflorus Katharine Brandegee May 1890 19 San Mateo San Gregorio, Santa Cruz Mts. Santa Cruz Mts., San Gregorio Comment
  POM351492  Centaurea calcitrapa Edith A. Purer 1933-8-13 18173 San Mateo Near Belmont Comment
  CAS-BOT-BC274594  Centaurea calcitrapa Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon Comment
  CDA35517  Centaurea calcitrapa Ed Finley 1986-9-3 s.n. San Mateo Near Pilarcitos Lake. 0 Comment
  UC306679  Centaurea melitensis A. D. E. Elmer 1903-6-1 4281 San Mateo Crystal Springs Lake Comment
  JEPS10207  Centaurium davyi Rimo Bacigalupi with G. T. Robbins 1954-6-18 4560 San Mateo Point Ano Nuevo Comment
  UC625427  Centaurium davyi L. R. Abrams and I. L. Wiggins 1939-6-3 423 San Mateo Ano Nuevo Point Comment
  UCR121565  Centaurium muehlenbergii George K. Helmkamp, E. A. Helmkamp 1999-6-28 4987 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  UCSC005474  Centaurium muehlenbergii Randall Morgan 1998-7-28 3329 San Mateo N stretch of Stage Road off Hwy 1 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
  SJSU15406  Centaurium tenuiflorum Toni Corelli 2011-8-25 716 a San Mateo Pescadero State Beach and Marsh Natural Preserve, Round Hill Trail at the end of Water Lane Road 12 Comment
  JEPS46942  Centaurium trichanthum J. B. Davy 1893-6-17 778 San Mateo Belmont Comment
  UC35457  Centaurium trichanthum W. C. Blasdale 1893-6-17 San Mateo Belmont Comment
  CAS-BOT-BC272815  Centromadia parryi subsp. parryi James McMurphy 1908-10-18 s.n. San Mateo Cooley's Landing Comment
  CAS-BOT-BC272816  Centromadia parryi subsp. parryi David D. Keck 1931-10-5 1291 San Mateo Salada Beach Comment
  CAS-BOT-BC279330  Centromadia pungens subsp. pungens J. H. Thomas 1954-5-28 4231 San Mateo Redwood City. Near intersection of Bayshore and Main St. Comment
  CAS-BOT-BC279331  Centromadia pungens subsp. pungens Ned Cahill 1974-10-8 377 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC279328  Centromadia pungens subsp. pungens L. R. Abrams 1903-9-26 4017 San Mateo Menlo Park - border of SF Bay Comment
  SJSU5744  Centromadia pungens subsp. pungens L. S. Rose 1965-9-20 65106 San Mateo Burlingame, Trousdale Dr. & California Dr. 9 Comment
  UC894337  Centromadia pungens subsp. pungens Roxana Stinchfield 1915-9-19 250 San Mateo fields near Salt Marshes; Palo Alto Comment
  CAS-BOT-BC388385  Cerastium glomeratum John H. Thomas 1964-4-30 10355 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC388386  Cerastium glomeratum John H. Thomas 1965-4-29 10622 San Mateo San Bruno Mountain in northern part of county 396 Comment
  UC1084416  Cerastium glomeratum G. Thomas Robbins 1937-4-11 101 San Mateo near Spring Valley Lakes along rd. to Woodside Comment
  CAS-BOT-BC400169  Ceratophyllum demersum W. R. Dudley 1909-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. W. twin-pond near Mussel Rock Comment
  JROH3616  Cercocarpus betuloides var. betuloides L. R. Abrams 1916-2-22 7242 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  JROH1947  Chamaesyce maculata John Hunter Thomas 1990-7-28 24939 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1822  Chenopodium californicum D. E. Breedlove 1971-5-31 19351 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  POM177325  Chenopodium macrospermum var. farinosum L. R. Abrams, I. Wiggins 1930-11-13 178 San Mateo Margin of pond at DSalada Beach. Comment
  JROH4652  Chlorogalum pomeridianum var. pomeridianum John Hunter Thomas 1983-6-29 22706 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  CDA20080  Chondrilla juncea J. Beall 2002-11-18 PDR P 205608 San Mateo San Francisco Bay Area; across the street from 3975 Pacific Blvd. 0 Comment
  RSA0004896  Chorizanthe cuspidata var. marginata A. D. E. Elmer 1903-05 4828 San Mateo San Pedro. Comment
  UCR122972  Chrysanthemum coronarium George K. Helmkamp, E. A. Helmkamp 2001-6-2 6761 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  UCR122974  Chrysanthemum maximum George K. Helmkamp, E. A. Helmkamp 2001-6-2 6763 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  SEINET13952978 Image available Chrysolepis chrysophylla Charles M. Belshaw 1936-1 1461 San Mateo Kings Mountain Road, 4.5 miles west of Woodside, South Coast Range. Comment
  UC565402  Chrysolepis chrysophylla var. minor Charles M. Belshaw 1935-1-25 1468 San Mateo 2.5 mi nw Sierra Moreno Peak; South Coast Range Comment
  JROH2580  Cicendia quadrangularis Rimo Bacigalupi 1922-4-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176821  Cicendia quadrangularis John H. Thomas 1961-4-29 9182 San Mateo Jasper Ridge Biological Experimental Area, about five miles southwest of Palo Alto. Comment
  POM202467  Cirsium brevistylum L. S. Rose 1933-6-9 33216 San Mateo 3 miles W of San Bruno. Comment
  CAS-BOT-BC100942  Cirsium fontinale var. fontinale J. W. Congdon 1901-7-27 s.n. San Mateo Spring Valley Comment
  RSA0008391  Cirsium fontinale var. fontinale A. D. E. Elmer 1903-06 4292 San Mateo Crystal Springs Lake. Comment
  JROH633  Cirsium occidentale var. venustum John H. Thomas 1973-6-10 16813 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18266  Cirsium occidentale var. venustum C. B. Wolf 1927-6-27 457 San Mateo Los Troncos Creek, 2 mi back of Stanford University. Comment
  UCD130668  Cirsium occidentale var. venustum W. A. Harvey; J. M. Tucker 1948-6-29 1708 San Mateo Beside road to Portola State Park, just west of junction with Highway 5 (Skyline Boulevard). Comment
  CAS-BOT-BC280530  Cirsium quercetorum John H. Thomas 1961-5-7 9271 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CDA1535  Cirsium quercetorum T. C. Fuller 1971-6-1 19882 San Mateo Crystal Springs Reservoir E shore, 0.3 mi. SE of center causeway; Belmont. Comment
  JEPS30887  Cirsium quercetorum J. H. Thomas 1958-6-11 7227 San Mateo about 4.3 mi due e of Belmont (near Crystal Springs Reservoir); , Crystal Springs Reservoir 91 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
  UC895026  Cirsium quercetorum S. F. Blake 1927-7-8 10006 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC280514  Cirsium quercetorum Javier Penalosa 1963-3-30 2703 San Mateo San Bruno Mountain. North of Randolph Ave. at Hillside Blvd. in SSF 91 Comment
  CAS-BOT-BC280517  Cirsium quercetorum John Thomas Howell 1939-6-16 14740 San Mateo Near San Andreas Lake Comment
  CAS-BOT-BC280528  Cirsium quercetorum George Oberlander 1949-7-10 252 San Mateo San Francisco Watershed Reserve. East of Sawyer Ridge Comment
  JROH634  Cirsium vulgare John H. Thomas 1964-11-15 10526 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road at edge of Searsville Lake Comment
  CAS-BOT-BC285867  Cirsium vulgare J. P. Rose 1907-9-28 s.n. San Mateo Near Cooley's Landing Comment
  RSA155840  Cirsium vulgare Peter H. Raven 1961-8-24 16585 San Mateo East side of Crystal Springs Lake Comment
  CAS-BOT-BC162604  Clarkia Paul Reeberg 1989-5-19 s.n. San Mateo In ravine above Shearwater - San Bruno Mountains 137 Comment
  RSA791714  Clarkia Robert F. Thorne, P. Everett 1965-8-1 35076 San Mateo 21.5 miles S of Golden Gate Bridge. 69 Comment
  RSA130900  Clarkia amoena subsp. amoena E. K. Balls 1958-7-19 23570 San Mateo State Highway 5, 2 miles NW of junction with road from Big Basin State Park 671 Comment
  CAS-BOT-BC172089  Clarkia davyi Peter H. Raven 1959-6-1 14455 San Mateo Pigeon Point Comment
  CAS-BOT-BC163971  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1900-5-19 s.n. San Mateo One mile West of summit of La Honda Road Comment
  CAS-BOT-BC164567  Clarkia purpurea subsp. viminea Cherie Wetzel 1969-6-20 879 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. 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-BC165152  Clarkia rubicunda Daniel Cohen 1953-6-3 106 San Mateo Los Trancos Woods Comment
  CAS-BOT-BC165167  Clarkia rubicunda Margaret A. Barry 1937-6-22 159 San Mateo Exposed slopes on Coal Mine Ridge 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
  JEPS43631  Clarkia rubicunda Dr. L. M. Newlon 1921-1 251 San Mateo between Salada and Mussel Rock Comment
  JEPS82913  Clarkia rubicunda Roy E. Buck, Randall A. Morgan 1983-6-7 335 San Mateo in triangle of Edgewood and Canada Rds. and Hwy. I-280, n of small watercourse San Francisco Watershed Reserve 158 Comment
  UC112979  Clarkia rubicunda Katharine Brandegee 1908-7-26 San Mateo near Half Moon Bay; Moss Beach Comment
  UC1279951  Clarkia rubicunda Peter H. Raven 1957-6-30 11012 San Mateo near bridge Tunitas Creek (along State Highway 1) Comment
  CAS-BOT-BC165128  Clarkia rubicunda Rimo Bacigalupi 1955-8-4 5445 San Mateo Just south of Pedro Point, western end of Montara Mtn. Comment
  CAS-BOT-BC165131  Clarkia rubicunda Carl B. Wolf 1927-6-29 566 San Mateo On the coast 3 mi. so. of San Gregorio Comment
  CAS-BOT-BC165153  Clarkia rubicunda Walter Knight 1964-9-14 836 San Mateo On ridge - between Peak Mt. and highway 1 Comment
  UC1279895  Clarkia rubicunda Peter H. Raven 1957-6-20 10954 San Mateo 2.6 mi n Redwood City turnoff (State Highway 5 (Skyline Boulevard)) Comment
  UC1279932  Clarkia rubicunda Peter H. Raven 1957-6-30 11013 San Mateo 1.8 mi n of bridge Pescadero Creek (State Highway 1) Comment
  RSA108438  Clarkia rubicunda subsp. blasdalei Harlan Lewis, M. Lewis 1951-6-28 859 San Mateo 1.8 mile south of Sharp Park. Comment
  RSA108439  Clarkia rubicunda subsp. blasdalei Harlan Lewis, M. Lewis 1951-6-28 962 San Mateo Highway 1, 0.6 mile south of road to Redwood City, at Tunitas Creek. Comment
  JROH5705  Claytonia exigua subsp. exigua John Rawlings 2015-3-15 1353 San Mateo Jasper Ridge Biological Preserve, Stanford University; Rd D 113 Comment
  CAS-BOT-BC439288  Claytonia exigua subsp. exigua George Oberlander 1950-2-1 445 San Mateo San Francisco Watershed Reserve. Near south boundary Comment
  JROH5734  Claytonia parviflora subsp. parviflora John Rawlings 2015-4-5 1654 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near base of scree slope in old quarry off of Trail 12 111 Comment
  RSA101038  Claytonia perfoliata subsp. mexicana G. Oberlander 1949-3-2 18 San Mateo Under oak madrone, Sawyer Ridge, San Frncisco Watershed Reserve. Comment
  RSA276897  Claytonia perfoliata subsp. mexicana J. M. Miller 1977-3-23 590 San Mateo Purisimo Canyon, 1.4 miles E of Hwy 1 on Purisimo Canyon Road. Comment
  JROH3408  Clematis lasiantha Duncan M. Porter 1961-4-8 748 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12099156  Clematis ligusticifolia Unknown 1931-1 7796 San Mateo Jaspan Ridge, common Comment
Read comments
May 3 2019
  UCD18535  Clinopodium douglasii Roman Gankin 1950-6-25 2 San Mateo about 2 miles from Alameda de Las Puigas Rd., behind Stanford University, off Sandhill Rd. Comment
  CAS-BOT-BC499399  Clintonia andrewsiana W. R. Dudley 1895-6-8 s.n. San Mateo Road near Alpine School House, Black mt. Comment
  CAS-BOT-BC499405  Clintonia andrewsiana David D. Keck 1932-6-1 1797 San Mateo 1 mile west of Skyline Blvd. on La Honda road, Santa Cruz Mountains Comment
  CAS-BOT-BC499406  Clintonia andrewsiana A. D. E. Elmer 1903-5-1 4331 San Mateo Butano Creek Comment
  RSA104877  Collinsia heterophylla Elizabeth Sprague 1956-5-28 s.n. San Mateo 2 miles east of Skyline Drive on La Honda Rd. Comment
  CAS-BOT-BC240928  Collinsia multicolor Reed C. Rollins 1941-3-22 2953 San Mateo San Bruno Hills, 2 miles southeast of Daly City 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
  UC138812  Collinsia multicolor C. F. Baker 1902-4-6 647 San Mateo Pacific Coast, Crystal Springs Lake Crystal Springs Lake; Pacific Coast, Crystal Springs Lake Comment
  UC676737  Collinsia multicolor Reed C. Rollins 1941-3-22 2953 San Mateo 2 mi se of Daly City (San Bruno Hills); San Bruno Hills Comment
  CAS-BOT-BC240930  Collinsia multicolor W. R. Dudley 1900-3-17 s.n. San Mateo Santa Cruz Peninsula. Pilar Pt. south slope by grade near summit of Montara Mts. Comment
  POM50569  Collinsia sparsiflora var. collina L. R. Abrams 1902-4-13 2322 San Mateo San Andreas Lake. Comment
  CDA29087  Collomia heterophylla D. G. Kelch 2009-6-9 9 .404 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  POM65104  Collomia heterophylla L. R. Abrams 1901-05 1557 San Mateo Portola Comment
  JROH208  Conium maculatum John H. Thomas 1964-7-3 10442 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road above Searsville Lake Comment
  CAS-BOT-BC389736  Convolvulus J. Lovelle 1973-7-22 19 San Mateo Mt. Ellen Comment
  RSA0059768  Convolvulus subacaulis Lewis S. Rose 1956-5-28 56080 San Mateo Skyline Blvd. W of San Mateo. 182 Comment
  RSA0059777  Convolvulus subacaulis A. D. E. Elmer 1903-06 4826 San Mateo Crystal Springs Lake. Comment
  IRVC9058  Corallorhiza maculata P. W. Rundel 1963-7-7 1145 San Mateo San Francisco Bay drainage area; Kings Mtn Road; woodside. Santa Cruz Mountains 305 Comment
  JEPS64360  Corallorhiza striata Inez Smith Mar. 1915 San Mateo Hillsboro Comment
  JROH4032  Cordylanthus pilosus subsp. pilosus Carol Zabel 1989-8-7 20 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 12, near Mapache Gate Comment
  UC885647  Cordylanthus pilosus subsp. pilosus Roxana Stinchfield 1915-10-14 255 San Mateo basaltic columns near Stanford University Comment
  JEPS19701  Cordylanthus rigidus subsp. rigidus Peter H. Raven 1957-9-1 11298 San Mateo Kings Mountain road 2 mi e Skyline Boulevard ((State Highway %)) Comment
  JEPS80892  Cordylanthus rigidus subsp. rigidus Monty Knudsen 1981-8-13 San Mateo Edgewood Park w of Redwood City; Edgewood Park Comment
  POM287560  Cornus californica Lyman Benson 1928-4-12 57 San Mateo Standord University. Santa Cruz. Watershed San Francisquito Creek. 46 Comment
Read comments
Oct 24 2014
  RSA0034444  Cornus glabrata C. B. Wolf 1931-8-20 2329 San Mateo 3 miles west of Mayfield on road to La Honda. 91 Comment
  CAS-BOT-BC210352  Cornus sericea J. I. McMurphy 1906-5-11 22 San Mateo Santa Cruz Peninsula. Los Trancos Creek, Santa Cruz Mts. Comment
  CAS-BOT-BC210353  Cornus sericea W. R. Dudley 1894-4-21 s.n. San Mateo Santa Cruz Peninsula. San Mateo Creek Comment
  UCR121552  Coronopus didymus George K. Helmkamp, E. A. Helmkamp 1999-6-28 4992 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  CDA18371  Cortaderia jubata G. D. Barbe 1978-9-26 2443 San Mateo Skylawn Memorial Park; drive from Hwy 92 into the park. 716 Comment
  JROH4975  Cortaderia selloana John Hunter Thomas 1982-7-3 21060 San Mateo Jasper Ridge Biological Preserve, Stanford University. Lake edge Comment
  CAS-BOT-BC180277  Corylus cornuta subsp. californica Walter Knight; Irja Knight 1965-4-4 s.n. San Mateo In Bitter Cherry Ravine at the upper part. San Bruno Mountain Comment
  CAS-BOT-BC180361  Corylus cornuta subsp. californica Josephine D. Randall 1907-6-8 113 San Mateo Portola Road. Santa Cruz Peninsula Comment
  POM196594  Corylus cornuta var. californica W. R. Dudley 1902-5-17 s.n. San Mateo King Mountain rd. Comment
  RSA152233  Corylus cornuta var. californica I. L. Wiggins 1925-04 1649 San Mateo On Kings Mtn Road three fourths of a mile above Woodside. Comment
  RSA15260  Corylus cornuta var. californica C. B. Wolf 1927-2-26 223 San Mateo Near the road on the La Honda Grade. Comment
  SEINET12034013  Corylus rostrata var. californica Unknown 1930-1 7313 A San Mateo Los Francoo Woods Comment
  CAS-BOT-BC453504  Cotoneaster lacteus Elizabeth McClintock 1978-7-1 s.n. San Mateo Colma Canyon; San Bruno Mountains Comment
  RSA210917  Cotoneaster lacteus John H. Thomas 1968-10-6 14842 San Mateo Vicinity of railroad tracks and Dumbarton Bridge causeway entrance. E of Palo Alto. Comment
  CAS-BOT-BC344964  Cotoneaster pannosus Peter Rubtzoff 1977-4-16 8951 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  JROH3638  Cotoneaster pannosus John Hunter Thomas 1980-4-24 19896 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM88012  Cotula australis L. R. Abrams 1902-4-13 2323 San Mateo San Andreas Lake. Comment
  CAS-BOT-BC291460  Cotula coronopifolia Elizabeth McClintock; Paul Reeberg 1989-4-6 s.n. San Mateo Base of Owl Canyon, San Bruno Mountains 45 Comment
  SEINET11841252  Cotula coronopifolia E. H. Graham 1931-1 6928 San Mateo Ano Nuevo Point Comment
  RSA706101  Cotula mexicana Don Pendleton 2002-4-8 s.n. San Mateo San Francisco Bay Region: Sharp Park Golf Course, Pacifica 15 Comment
  JEPS49999  Crassula aquatica J. B. Davy c. 1919 5 e San Mateo Lake Pilarcitos Comment
  OBI20232  Crassula aquatica Rimo Bacigalupi, G. T. Robbins 1954-6-18 4561 San Mateo At Point Ano Nuevo Comment
  CAS-BOT-BC427835  Crassula connata Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo San Bruno Mountain. Slope above Hillside Blvd., South San Francisco. Comment
  CAS-BOT-BC427836  Crassula connata Elizabeth McClintock 1965-4-11 s.n. San Mateo San Bruno Mountain. Near Guadalupe Road in Crocker Hills. Comment
  CAS-BOT-BC290331  Crepis Ira L. Wiggins 1979-8-26 22250 San Mateo Alley between Woodland and Central Avenues, running from Pope Street to Gilbert Street, Menlo Park Comment
  CAS-BOT-BC291512  Crepis capillaris Roman Gankin; Peter Rubtzoff 1975-9-11 s.n. San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, San Bruno Mountains Comment
  JROH669  Crepis vesicaria subsp. taraxacifolia John Hunter Thomas 1989-5-9 24696 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU4570  Crepis vesicaria subsp. taraxacifolia C. S. Hendrich 1963-3-20 San Mateo Sharon Estate by Sand hill Road near Stanford Comment
  JROH1955  Croton setiger John H. Thomas 1959-8-22 8076 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5739  Cryptantha clevelandii var. florosa John Rawlings 2015-5-28 1659 San Mateo Jasper Ridge Biological Preserve, Stanford University. Bird marker along Trail 9 at edge of chaparral. 140 Comment
  JEPS127873  Cryptantha flaccida Adam C. Schneider 2013-5-17 183 San Mateo Crystal Springs Reservoir Comment
  JROH5622  Cryptantha microstachys John Rawlings 2014-5-6 1223 A San Mateo Jasper Ridge Biological Preserve, Stanford University; on the top of Trevor's Knoll, about 70 m north of Trail 10. 181 Comment
  UC1303040  Cupressus macrocarpa J. H. Thomas 1964-6-19 10423 San Mateo 0.5 mi below Skyline Blvd. (on Half Moon Bay Road toward Crystal Springs Reservoir); Half Moon Bay Road Comment
  CAS-BOT-BC80787  Cupressus macrocarpa J. H. Thomas 1960-8-28 8832 San Mateo Growing on steep road bank near Skyline Blvd. and Summit Drive to the west of Hillsborough. Comment
  SD38407  Cuscuta pacifica var. pacifica Edith A. Purer 1933-8-13 5408 San Mateo Small bottom near Baden Station Comment
  RSA120949  Cynara scolymus J. T. Howell 1956-11-14 31961 San Mateo Bayshore Highway just south of Main Street, Redwood City. Comment
  JROH1393  Cynoglossum grande John Hunter Thomas 1981-4-5 20277 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek Comment
  JROH1394  Cynoglossum grande John Hunter Thomas 1981-5-14 20573 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old shack riders shack Comment
  RSA176667  Cynoglossum grande P. H. Raven 1964-2-16 18744 San Mateo Just south of Lake San Andreas. Comment
  RSA291933  Cynoglossum grande Robert A. Norris, John L. Inase, Willie J. Roberts, Nelson R. Powers 1982-1-30 4326 San Mateo Perennials along Chickadee Trail, Huddart County Park, ca. 3 1/2 miles W Woodside. 274 Comment
  UC1206465  Cynoglossum grande Le Roy Abrams 1902-4-6 2317 San Mateo Searsville Comment
  UC517566  Cyperus eragrostis John Thomas Howell 1926-10-9 2216 San Mateo near Lake San Andreas Comment
  SBBG32286  Cyperus eragrostis L. S. Rose 1965-9-20 San Mateo Burlingame, Trousdale Drive and California Drive 9 Comment
  JROH4391  Cyperus erythrorhizos John H. Thomas 1974-10-29 17643 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  CAS-BOT-BC133769  Cypripedium fasciculatum Miss. Barbara Donahoe; Miss. Louise Boyd 1923-4-18 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  RSA131973  Cytisus monspessulanus John H. Thomas 1960-4-22 8594 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  SD37828  Cytisus scoparius Marie Cummings 1933-5-23 3666 San Mateo La Honda Comment
  SJSU15434  Dactylis glomerata Toni Corelli 2010-5-17 674 San Mateo Pescadero State Beach and Marsh Natural Preserve, south of north parking lot 6 Comment
  CAS-BOT-BC192235  Danthonia californica W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs Comment
  CAS-BOT-BC192236  Danthonia californica E. H. Quayle 1920-5-2 714 San Mateo Moss Beach Comment
  CAS-BOT-BC192242  Danthonia californica Ned Cahill 1974-5-30 322 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC192243  Danthonia californica A. D. E. Elmer 1903-6-1 4707 San Mateo Crystal Springs Lake Comment
  SJSU10402  Danthonia californica E. C. Garbett 1960-5-1 120 San Mateo Georgia Lane c. 1 mi E of Portola Rd, Portola Valley Comment
  UCD60479  Danthonia californica R. Tofsrud 1947-6-14 s.n. San Mateo 1-2 mi. N of Pescadero on road to San Gregorio. Comment
  RSA128798  Danthonia californica var. americana P. H. Raven 1900-4-30 1966 San Mateo along streets, Montara 24 Comment
  JROH1905  Datisca glomerata Carol Zabel 1989-8-11 23 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek bank near intersection with Bear Creek Comment
  UC106445  Daucus pusillus Mrs. K. Brandegee June, 1905 San Mateo Halfmoon Bay Comment
  JEPS59962  Deinandra corymbosa Lewis S. Rose 1969-8-22 69097 San Mateo Skyline and Half Moon Bay Road; Cahill Ridge 243 Comment
  UC702538  Deinandra corymbosa L. S. Rose 1941-8-9 41361 San Mateo Moss Beach, open sandy coastal fields Moss Beach 16 Comment
  UC935705  Deinandra corymbosa David D. Keck 1931-10-5 1295 San Mateo 1.5 mi s Half Moon Bay road (Skyline Boulevard, summit of Cahil Ridge); Cahil Ridge 450 Comment
  OBI16296  Deinandra corymbosa Robert F. Hoover 1966-8-27 9942 San Mateo Halfmoon Bay Comment
  SD30843  Deinandra corymbosa Marie Cummings 1933-6-5 2124 San Mateo Near Spring Valley Lake Comment
  SD30844  Deinandra corymbosa Edith A. Purer 1933-5-31 3662 San Mateo Spring Valley Lakes. Comment
  CAS-BOT-BC299198  Deinandra corymbosa subsp. corymbosa L. R. Abrams 1902-9-21 3000 San Mateo Crystal Lake Comment
  CAS-BOT-BC299218  Deinandra corymbosa subsp. corymbosa Elsie Zeile 1909-5-20 s.n. San Mateo Burlingame Comment
  CAS-BOT-BC299227  Deinandra corymbosa subsp. corymbosa David D. Keck 1932-5-25 1784 San Mateo Hills two miles west of Belmont Comment
  CAS-BOT-BC299224  Deinandra corymbosa subsp. corymbosa H. M. Hall 1930-8-17 12881 San Mateo East side of Crystal Springs Lake Comment
  CAS-BOT-BC292115  Delairea odorata J. H. Thomas 1958-12-18 7509 San Mateo Along Skyline Blvd. just west of San Bruno Comment
  CAS-BOT-BC292116  Delairea odorata John H. Thomas 1956-12-23 6480 San Mateo At 198 Oak Court, Menlo Park Comment
  CAS-BOT-BC389749  Delphinium M. Danielson 1967-4-30 s.n. San Mateo Old road above Crystal Springs Rd. on S.F. Watershed lands Comment
  CAS-BOT-BC9214  Delphinium californicum Lewis Samuel Rose 1965-5-3 65058 San Mateo San Bruno Mountain, Colma Canyon 60 Comment
  RSA152052  Delphinium californicum John H. Thomas 1961-5-7 9279 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  UC311529  Delphinium californicum A. D. E. Elmer July 1903 4548 San Mateo Pilarcitos Stone Dam Comment
  UC511171  Delphinium californicum Lyman Benson 1930-5-12 2127 San Mateo Lake Searsville San Francisco Bay watershed, Santa Cruz Mt. Range, Stanford 152 Comment
  RSA51292  Delphinium decorum Peter H. Raven 1950-4-16 1788 San Mateo Colma Canyon, San Bruno Mountains. 183 Comment
  RSA394480  Delphinium decorum subsp. decorum Glenn A. Gorelick 1968-5-12 s.n. San Mateo San Bruno Mtns, Overlooking Daly City near San Francisco Comment
  CAS-BOT-BC10287  Delphinium hesperium W. R. Dudley 1905-6-19 s.n. San Mateo Above Alpine School House, Black Mtn. Comment
  CAS-BOT-BC116328  Delphinium parryi subsp. parryi W. R. Dudley 1894-7-7 S. N. San Mateo Under trees, head of Corte Madera. Comment
  JROH3458  Delphinium patens subsp. patens John Hunter Thomas 1980-4-10 19872 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam, grassy area Comment
  CAS-BOT-BC7889  Delphinium variegatum LeRoy Abrams 1902-5-11 2454 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC7891  Delphinium variegatum Mrs. John C. Angsbury 1932-4-1 s.n. San Mateo Kings. Mtn. Comment
  CAS-BOT-BC7893  Delphinium variegatum C. F. Baker 1902-4-6 458 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC7940  Delphinium variegatum John Hunter Thomas 1971-5-2 15829 San Mateo near intersection of Canada and Edgewater Roads, about 4 miles SW of center of Redwood City 304 Comment
  CAS-BOT-BC7932  Delphinium variegatum A. J. Ward Hornby 1952-5-10 113 San Mateo In hills behind Searsville Lake 426 Comment
  SEINET13094860  Delphinium variegatum f. superbum David D. Keck 1933-5-11 2309 San Mateo Crystal Springs Lake, on open slopes about east side of lake. Comment
  JROH3462  Delphinium variegatum subsp. variegatum Roger L. von Preissig 1954-4-23 25 San Mateo Jasper Ridge Biological Preserve, Stanford University 167 Comment
  UC203054  Delphinium variegatum subsp. variegatum A. D. E. Elmer May 1903 4796 San Mateo Crystal Springs Lake Comment
  SEINET10476252  Dendromecon rigida Mary Susan Taylor 1978-8-30 Taylor 1865 San Mateo Comment
  POM205845  Deschampsia cespitosa E. B. Copeland 1903-6-10 3305 San Mateo Montara Point. Comment
  SJSU15936  Deschampsia cespitosa subsp. cespitosa John Rawlings, Ken Hickman 2016-5-26 1807 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  CAS-BOT-BC192599  Deschampsia cespitosa subsp. holciformis H. L. Mason 1921-5-29 s.n. San Mateo Near Arroyo de las Frijoles Comment
  CAS-BOT-BC192593  Deschampsia cespitosa subsp. holciformis Harold E. Stark 1959-6-4 s.n. San Mateo North end of Lake San Andreas, 1/2 mile w. of San Bruno, S. F. Watershed and Wildlife Refuge Comment
  JROH5070  Deschampsia elongata John Hunter Thomas 1985-5-22 23670 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB294  Deschampsia elongata Kraebel, C. 1932-7-24 San Mateo no data Comment
  JROH1506  Descurainia sophia John H. Thomas 1977-4-6 18512 San Mateo Stanford University, Santa Clara Co.; in area leased for horse raising between Stanford Linear Accelerator Center and Jasper Ridge, near Alpine Road Comment
  CAS-BOT-BC906  Dicentra chrysantha Alice Eastwood 1915-5-30 4519 San Mateo Mt. Diablo Comment
  SEINET10533994  Dichelostemma capitatum Kimber 1918-4-25 KIMBER s.n. San Mateo Plants of the Santa Cruz Mountain Peninsula. Jasper Ridge. Serpentine. Comment
  UCSB18428  Dichelostemma capitatum subsp. capitatum Muirhead, M. 1964-4-17 San Mateo Crocker instate; Hillsborough, California 83 Comment
  CAS-BOT-BC502169  Dichelostemma congestum Fred Hemphill 1973-4-22 666 San Mateo San Carlos. Chaparral area north of Malabar Road and Melendy Drive. 207 Comment
  JROH4662  Dichelostemma congestum John H. Thomas 1964-4-29 10333 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oakwoodland near Searsville end of ridge Comment
  JROH5076  Digitaria sanguinalis H. J. Dengler 1965-8-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. In S.F. Creek bed, a few hundred yards below N. bend, at the Dennis Martin settlement site. 71 Comment
  CAS-BOT-BC150442  Diplacus aurantiacus Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo unspecified Comment
  CAS-BOT-BC150443  Diplacus aurantiacus J. F. Emmel 1970-2-22 256 San Mateo 0.3 air mile SE of 1314 summit, on NE slope of San Bruno Mt. Comment
  CAS-BOT-BC150449  Diplacus aurantiacus Barrett Anderson; Peter Rubtzoff 1988-4-22 3665 San Mateo San Bruno Mountain. Radio Road south of Guadalupe Canyon Parkway 365 Comment
  SEINET8415145  Diplacus aurantiacus LeRoy E. Detling 1932-8-17 1354 San Mateo San Gregorio. Comment
  CDA19177  Diplotaxis tenuifolia D. Pendleton 2001-5-31 PDR 064471 San Mateo San Francisco Bay Peninsula; Burlingame. 0 Comment
  CAS-BOT-BC121857  Dirca occidentalis Lewis S. Rose 1964-3-9 64004 San Mateo N end of Crystal Springs Lake 121 Comment
  CAS-BOT-BC121862  Dirca occidentalis W. R. Dudley 1900-3-17 s.n. San Mateo Near top of Montara Mtn Comment
  CAS-BOT-BC121863  Dirca occidentalis F. G. Kraus 1893-5-27 s.n. San Mateo near La Honda Comment
  JEPS96866  Dirca occidentalis Dean W. Taylor 1972-2-27 1335 San Mateo near San Andreas Lake 743 Comment
Read comments
Jun 8 2011
  JROH4207  Dirca occidentalis D. E. Breedlove 1971-5-11 19336 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4209  Dirca occidentalis John H. Thomas 1977-2-20 18470 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3821107 Image available Dirca occidentalis Lewis S. Rose 1933-6-9 33222 San Mateo San Andreas Lake. Comment
  UC19691  Dirca occidentalis C. T. Blake 1893-5-27 San Mateo Pilarcitos Reservoir Comment
  SEINET10776854 Image available Dirca occidentalis Lewis S. Rose 1939-4-12 Rose 39060 San Mateo Crystal Springs Lake 152 Comment
  UC860256  Disporum hookeri Lewis S. Rose 1939-5-5 39095 San Mateo San Mateo Canyon 45 Comment
  POM277215  Disporum hookeri var. hookeri Lyman Benson 1937-8-15 8490 San Mateo Upper San Francisquito Creek, Mt. Range: Santa Cruz; Watershed: San Francisco Bay. 244 Comment
  POM169800  Disporum smithii A. D. E. Elmer 1903-05 4697 San Mateo Butano Creek Comment
  JROH3376  Dodecatheon clevelandii subsp. patulum Ellen Searby 1955-4-1 78 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM287082  Dodecatheon clevelandii subsp. patulum Lyman Benson 1929-3-16 1014 San Mateo Crystal Springs Lake, Spring Valley 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
  POM78433  Dodecatheon hendersonii subsp. cruciatum A. D. E. Elmer 1903-04 s.n. San Mateo Woodsides. Comment
  CDA39075  Dracunculus vulgaris M. K. Beyers 2013-5-31 s.n. San Mateo Montara State Beach, McNee Ranch Trail Trailhead. Comment
  RSA112450  Drymocallis glandulosa var. wrangelliana Josephine Randall 1907-7-7 340 San Mateo Kings Mtn. Comment
  RSA451896  Drymocallis glandulosa var. wrangelliana Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mts. overlooking Daly City near San Francisco. Comment
  RSA152261  Drymocallis glandulosa var. wrangelliana I. L. Wiggins 1925-04 1662 San Mateo On Kings Mtn Road three fourths of a mile above Woodside. Comment
  UC903041  Drymocallis glandulosa var. wrangelliana Ethel Crum 1934-4-29 1695 San Mateo one mi w Pescadero (near Pebble Beach); w of Pescadero, near Pebble Beach 30 Comment
  CAS-BOT-BC67885  Dryopteris arguta L. R. Abrams 1901-12-29 2251 San Mateo Santa Cruz Mts. Comment
  CAS-BOT-BC67897  Dryopteris arguta Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain - Wax Myrtle Ravine, Six-Fern Rock Comment
  IRVC3913  Dryopteris arguta P. W. Rundel 1963-6-11 1124 San Mateo San Fransisco Bay drainage area; Old La Honda Road. Santa Cruz Mountain Range 305 Comment
  SEINET11619627  Dryopteris arguta Unknown 1929-1 7295 San Mateo Kings Mt Comment
  JEPS49939  Dudleya caespitosa W. L. Jepson 1910-8-18 4164 San Mateo Gazos Creek Pescadero Comment
  CAS-BOT-BC428359  Dudleya farinosa John H. Thomas 1963-7-19 10197 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC428364  Dudleya farinosa L. R. Abrams 1909-8-2 4272 San Mateo Santa Cruz Peninsula. Pebble Beach hotel, Pescadero Comment
  JROH1815  Dysphania ambrosioides John Hunter Thomas 1980-11-12 20165 San Mateo Jasper Ridge Biological Preserve, Stanford University; delta Comment
  JROH5837  Dysphania ambrosioides Ann Lambrecht 2011-8-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; now-dry bed of San Francisquito Creek below Dennis Martin marker Comment
  CAS-BOT-BC197079  Echinochloa crus-galli Ira L. Wiggins 1985-9-28 22301 San Mateo N side of San Francisquito Creek, ca 125 m upstream from Pope Street bridge, Menlo Park Comment
  JROH5098  Echinochloa crus-galli Ann Lambrecht 2006-8-23 44 San Mateo Jasper Ridge Biological Preserve, Stanford University; dry bed of San Francisquito Creek below Dennis Martin marker 71 Comment
  CAS-BOT-BC197265  Echinochloa muricata var. microstachya George Oberlander 1949-9-25 394 San Mateo San Francisco Watershed Reserve. Upper Crystal Spr. Lake Comment
  UCD61202  Ehrharta erecta Robert E. Preston 2004-6-10 2252 San Mateo Ca. 8 mi NW of Boulder Creek, in Pescadero Creek watershed. 234 Comment
  CAS-BOT-BC113592  Eleocharis acicularis M. E. Lang 1923-5-1 s.n. San Mateo Mud Lakes Comment
  CAS-BOT-BC113593  Eleocharis acicularis George Thomas Oberlander 1950-5-6 841 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC112957  Eleocharis macrostachya Rimo Bacigalupi 1922-5-25 s.n. San Mateo Emerald Lake Redwood City. Comment
  RSA63026  Eleocharis montevidensis L. S. Rose 1950-5-20 50146 San Mateo Emerald Lake region, hills w. of Redwood City. 244 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
  POM199072  Elymus californicus A. D. E. Elmer 1903-06 4700 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC203692  Elymus glaucus subsp. glaucus R. E. Frenkel 1963-12-7 328 San Mateo San Francisco Water District, Whiting Ridge Road, ca. 0.8 mile south-west of Spring Valley Road, at Fire Warden's Gate Comment
  JROH5103  Elymus glaucus subsp. glaucus John H. Thomas 1971-5-30 15979 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5104  Elymus glaucus subsp. glaucus John H. Thomas 1971-5-30 15979 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5107  Elymus glaucus subsp. glaucus John H. Thomas 1977-5-14 18605 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC235208  Elymus multisetus John H. Thomas 1971-5-2 15811 San Mateo Near intersection of Canada Road and Edgewood Road, about three miles westward from Redwood City 152 Comment
  JROH5120  Elymus multisetus D. E. Breedlove 1971-5-31 19389 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH5126  Elymus multisetus John Hunter Thomas 1978-5-16 19218 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC204302  Elymus trachycaulus subsp. trachycaulus L. R. A. 1902-5-11 2452 San Mateo Crystal Springs Comment
  CAS-BOT-BC204303  Elymus trachycaulus subsp. trachycaulus L. R. A. 1902-5-11 2452 San Mateo Crystal Springs Comment
  POM87686  Elymus trachycaulus subsp. trachycaulus Le Roy Abrams 1902-5-11 2452 San Mateo Crystal Springs. Comment
  SJSU15955  Elymus trachycaulus subsp. trachycaulus John Rawlings, Ken Hickman 2016-5-26 1832 San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  SEINET6635579 Image available Epilobium brachycarpum Lewis S. Rose 1932-1 32600 San Mateo Salada Beach Comment
  RSA40474  Epilobium canum subsp. canum W. R. Dudley 1893-7-22 s.n. San Mateo Santa Cruz Mountain Peninsula: Guadalupe Valley Comment
  UCD105431  Epilobium canum subsp. canum Lewis S. Rose 1965-9-4 65099 San Mateo Skyline Blvd. and Half Moon Bay Road, Cahill Ridge. 243 Comment
  JROH3058  Epilobium ciliatum subsp. ciliatum Ann Lambrecht 2006-8-14 26 San Mateo Jasper Ridge Biological Preserve, Stanford University; spillway of dam, western half, top tier Comment
  SEINET12191216  Epilobium ciliatum subsp. ciliatum Unknown 1932-1 9174 A San Mateo Los Tramcos Woods Comment
  JROH3062  Epilobium densiflorum John H. Thomas 1971-8-7 16018 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3075  Epilobium torreyi John H. Thomas 1969-5-28 15091 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD84586  Epipactis gigantea Christopher Michael Bronny 2009-9-29 19 San Mateo Specimen collected along channelized/constrained banks of Belmont Creek south of Harbor Boulevard/east of Industrial Boulevard; property owned and maintained by Novartis Pharmaceuticals. 4 Comment
Read comments
Mar 10 2012
  JEPS79605  Equisetum arvense Edward Lee and Ann Johnson 1974-8-24 San Mateo near Pillar Point (Princeton Marsh) Comment
  IRVC3917  Equisetum telmateia subsp. braunii P. W. Rundel 1963-7-7 1138 San Mateo San Francisco Bay drainage area; Summer Spring Road; woodside. Santa Cruz Mountains 152 Comment
  POM356837  Erechtites glomeratus E. A. Purer 1933-8-13 5422 San Mateo Along roadside, near Belmont. Comment
  CAS-BOT-BC299888  Erechtites glomeratus Delzie Demaree 1933-8-13 10505 San Mateo Santa Clara Valley, Belmont Comment
  RSA124757  Eremocarpus setiger John H. Thomas 1958-11-22 7508 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  JROH3146  Eriastrum abramsii John H. Thomas 1961-6-7 9533 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC512627  Eriastrum abramsii Lewis S. Rose 1937-9-21 37659 San Mateo Emerald Lake 182 Comment
  UCSC007741  Ericameria ericoides Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CHSC57066  Erigeron glaucus Steven Triano 1988-5-24 215 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  JROH2715  Eriodictyon californicum Daniel Cohen 1953-4-11 24 San Mateo Jasper Ridge Biological Preserve, Stanford University; on west side of Jasper Ridge Comment
  SD38515  Eriodictyon californicum Edith A. Purer 1933-5-25 3650 San Mateo La Honda Grade Comment
  CAS-BOT-BC251976  Eriogonum latifolium Elizabeth McClintock; David Schooly; Kim Marcus 1975-4-13 s.n. San Mateo above Hillside Blvd., South San Francisco Comment
  CAS-BOT-BC251980  Eriogonum latifolium John H. Thomas 1961-5-7 9264 San Mateo San Bruno Mountain in northern part of county. 914 Comment
  RSA393632  Eriogonum latifolium E. S. Spalding 1924-6-28 s.n. San Mateo Moss Beach. Comment
  UC176458  Eriogonum latifolium Katharine Brandegee 1913-8-11 San Mateo Tobin Comment
  CAS-BOT-BC251969  Eriogonum latifolium Elizabeth McClintock; Paul Reeberg 1988-4-26 s.n. San Mateo at southern tip of ridge dividing Sage and Poison Oak Ravines 137 Comment
  CAS-BOT-BC251975  Eriogonum latifolium Phillip C. Wheeler 1965-5-18 s.n. San Mateo Base of the mountain adjacent to Olivet Cemetery Comment
  CAS-BOT-BC252001  Eriogonum latifolium W. R. Dudley No date on label s.n. San Mateo Ocean View downs Comment
  POM279949  Eriogonum latifolium Lyman Benson 1930-8-15 2565 San Mateo San Gregorio. Comment
  RSA523299  Eriogonum latifolium Gordon H. True Jr. 1936-6-7 486 San Mateo Cove 2 miles south of Pescadero 15 Comment
  RSA766114  Eriogonum latifolium D. D. Keck 1931-10-5 1287 San Mateo 1 mile north of Salada Beach, 200 meters from the ocean. Comment
  CAS-BOT-BC266072  Eriogonum luteolum A. D. E. Elmer 1903-6-1 4309 San Mateo Belmont Comment
  RSA120436  Eriogonum luteolum Hester R. Davis 1920-6-1 177 San Mateo Back of Redwood City Comment
  UCD100310  Eriogonum luteolum Lewis S. Rose 1964-9-9 64073 San Mateo Emerald Lake, west of Redwood City. 243 Comment
  JROH3234  Eriogonum luteolum var. luteolum John Hunter Thomas 1981-7-24 20728 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA51396  Eriogonum luteolum var. luteolum L. S. Rose 1949-8-14 49164 San Mateo Emerald Lake, hills west of Redwood City. Comment
  JROH5849  Eriogonum luteolum var. luteolum Bill Kirsher 1990-7-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. North side of Road F. Comment
  CAS-BOT-BC269008  Eriogonum nudum var. auriculatum Ned Cahill 1974-10-8 384 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  HSC17314  Eriogonum nudum var. auriculatum L. S. Rose 1964-9-9 64074 San Mateo Emerald Lake W of Redwood City 244 Comment
  RSA169305  Eriogonum nudum var. auriculatum L. S. Rose 1964-9-9 64074 San Mateo Emerald Lake, west of Redwood City 244 Comment
  RSA766375  Eriogonum nudum var. auriculatum D. D. Keck 1931-10-5 1278 San Mateo Between Woodside and Crystal Springs Lake. Comment
  SJSU15946  Eriogonum nudum var. nudum John Rawlings, Ken Hickman 2016-5-26 1822 B San Mateo Serpentine seep area up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  CAS-BOT-BC304066  Eriophyllum confertiflorum Linda Fox 1969-6-20 1005 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd Comment
  CAS-BOT-BC304072  Eriophyllum confertiflorum Fred Hemphill 1973-5-6 776 San Mateo San Carlos. N of Malabar Rd and Melendry Dr 207 Comment
  CAS-BOT-BC304073  Eriophyllum confertiflorum Fred Hemphill 1973-4-22 769 San Mateo San Carlos. N of Malabar Rd and Melendry Dr 207 Comment
  RSA175141  Eriophyllum confertiflorum R. F. Thorne, Percy C. Everett 1963-6-9 32234 San Mateo Top of San Bruno Mountain 335 Comment
  RSA18308  Eriophyllum confertiflorum C. B. Wolf 1927-5-31 408 San Mateo North end of Searsville Lake. Comment
  JROH699  Eriophyllum confertiflorum var. confertiflorum D. E. Breedlove 1971-5-31 19353 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH715  Eriophyllum confertiflorum var. confertiflorum John Hunter Thomas 1988-6-2 24508 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC301752  Eriophyllum latilobum S. Carlquist 1952-4-26 305 San Mateo On N. side of road to Half Moon Bay, 1 mi. e. of San Mateo Comment
  CAS-BOT-BC301753  Eriophyllum latilobum A. D. E. Elmer 1903-6-1 4397 San Mateo field near San Francisquito Creek near Stanford University Comment
  UC1377806  Eriophyllum latilobum W. J. Dress 1951-5-30 3274 San Mateo roadside bank in canyon sw of San Mateo Comment
Read comments
Mar 6 2006
  CAS-BOT-BC301969  Eriophyllum staechadifolium Louis F. Pitelka 1973-6-16 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  CAS-BOT-BC301976  Eriophyllum staechadifolium Saichi Kawahara 1968-7-29 461 San Mateo Old Stage Road, south bank of Pomponio Creek 36 Comment
  CAS-BOT-BC301980  Eriophyllum staechadifolium Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  SD40140  Eriophyllum staechadifolium Edith A. Purer 1933-7-27 5395 San Mateo Partially stabilized san dunes, two miles south of Pigeon Point. Comment
  UC1118210  Eriophyllum staechadifolium T. Tyrrell 1928-9-26 7 San Mateo 2 mi s San Gregorio; Santa Cruz Quad. 182 Comment
  CAS-BOT-BC301975  Eriophyllum staechadifolium Saichi Kawahara 1968-6-15 436 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1 4 Comment
  JEPS121583  Erodium cicutarium Adam C. Schneider with C. Matt Guilliams 2013-3-9 33 San Mateo Crystal Springs Reservoir Comment
  JROH2605  Erodium cicutarium John H. Thomas 1977-4-19 18536 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC41437  Eruca vesicaria subsp. sativa Elsie Z. Lovegrove 1948-2-22 s.n. San Mateo Coast road near Montara. Comment
  SBBG39491  Eryngium armatum L. S. Rose 1970-7-26 70076 San Mateo Hillsborough, Black Mtn, Skyline Blvd 121 Comment
  JROH239  Eryngium jepsonii John H. Thomas 1974-6-27 17445 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH240  Eryngium jepsonii John H. Thomas 1974-6-27 17445 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC54510  Erysimum capitatum D. D. Davis 1903-5-1 s.n. San Mateo La Honda grove. Comment
  CAS-BOT-BC54820  Erysimum franciscanum Javier Penalosa 1963-3-30 2735 San Mateo San Bruno Mountains. North of Randolph Drive at Hillside Boulevard. In South San Francisco. 289 Comment
  CAS-BOT-BC54850  Erysimum franciscanum G. B. Rossbach; R. P. Rossbach 1939-3-28 905 a fl. 905b fr. San Mateo San Mateo Creek, below Crystal Springs Lake. 60 Comment
  CAS-BOT-BC54871  Erysimum franciscanum J. H. Thomas 1960-3-11 8540 San Mateo Near intersection of Bunker Hill Road and Skyline Drive. 91 Comment
  CAS-BOT-BC54887  Erysimum franciscanum Oliver W. Norvell 1931-3-2 1410 San Mateo Near Crystal Springs Lake. Comment
  RSA101844  Erysimum franciscanum G. B. Rossbach 1939-3-26 901 San Mateo Very near Sharp Park (Salada Beach) Comment
  RSA101866  Erysimum franciscanum G. B. Rossbach 1938-4-3 806 San Mateo San Bruno Hills 305 Comment
  SEINET10667980  Erythranthe arvensis Edward L. Greene Greene s.n. San Mateo Belmont. Comment
  CAS-BOT-BC164031  Erythranthe grandis Peter Rubtzoff 1976-6-30 8705 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Westernmost part of the area on a slope across fence Comment
  CAS-BOT-BC403537  Eschscholzia californica A. D. E. Elmer 1903-6-1 4680 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC403558  Eschscholzia californica W. R. Ernst 1957-4-2 102 San Mateo Near junction of Highway 1 and Skyline Blvd. among San Francisco Headlands Comment
  UCSB18389  Eschscholzia californica Schulte, John 1963-4-12 San Mateo Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 137 Comment
  POM149355  Eschscholzia californica subsp. californica A. D. E. Elmer 1903-06 4680 San Mateo Crystal Springs Lake. Comment
  RSA15341  Eschscholzia californica subsp. californica Carl B. Wolf 1927-1-29 152 San Mateo Near coast between Pescadero and Pebble Beach Comment
  RSA100720  Euonymus occidentalis A. D. E. Elmer 1903-1 4317 San Mateo Butano Creek Comment
  UC1071565  Euonymus occidentalis var. occidentalis N. K. Carlson 1935-7-3 117 San Mateo 3 mi. s. Bellvale; Santa Cruz Quad. Comment
  RSA130685  Euphorbia crenulata C. F. (illegible) 1894-3-28 s.n. San Mateo Lobitas road. Comment
  UCD142397  Euphorbia helioscopia Walter Russell 1949-9-11 594 San Mateo Millbrae. Beside Highway 101. Comment
  JROH1949  Euphorbia maculata Carol Zabel 2005-8-10 55 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road near entrance to large parking lot near field station Comment
  UCR123136  Euphorbia oblongata Don Pendleton 2002-4-26 s.n. San Mateo San Francisco Bay Region, Woodside, Sandhill Road, 0.25 mi north of Portola Road, west of Hwy 280 152 Comment
  JROH5833  Euphorbia oblongata Ann Lambrecht, Teri Barry 2014-5-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; in now-dry bed of San Francisquito Creek Comment
  RSA572320  Euphorbia spathulata Robert F. Hoover 1938-4-27 3256 San Mateo Four miles south of San Jose. Comment
  SJSU16002  Euthamia occidentalis John Rawlings, Toni Corelli 2016-8-22 1942 San Mateo Franklin Point Trail, Ano Nuevo State Park 10 Comment
  JROH5154  Festuca arundinacea John Hunter Thomas 1982-6-7 21034 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5163  Festuca arundinacea John Hunter Thomas 1988-5-12 24456 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Lakeside Laboratory Comment
  JROH5169  Festuca arundinacea John Hunter Thomas 1992-5-14 25231 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat ramp. Comment
  JROH5171  Festuca arundinacea Toni Corelli 2001-5-5 245 San Mateo Jasper Ridge Biological Preserve, Stanford University; near concrete pad above CO2 area in disturbed grassland and planting of Pinus radiata 112 Comment
  JROH5470  Festuca bromoides John H. Thomas 1968-5-3 14441 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC278285  Festuca californica James McMurphy 1906-5-20 s.n. San Mateo Road to Kings Mt. Comment
  CAS-BOT-BC278286  Festuca californica W. R. Dudley 1900-3-17 s.n. San Mateo Ravine north of Seal Cove Comment
  RSA86775  Festuca californica D. D. Keck 1932-5-11 1499 San Mateo Above Woodside on La Honda Road, east slope of Santa Cruz Mountains Comment
  CAS-BOT-BC278352  Festuca californica subsp. californica W. R. Dudley 1900-3-16 s.n. San Mateo Santa Cruz Mountain Peninsula. By road to Kings Mt. Comment
  CAS-BOT-BC278353  Festuca californica subsp. californica David D. Keck 1932-5-11 1499 San Mateo Above Woodside on La Honda road, east slope of Santa Cruz Mountains Comment
  UCD65864  Festuca californica subsp. californica P. B. Kennedy 1916-4-1 San Mateo Daly City, Colma Canyon, S San Francisco. Comment
  POM87695  Festuca californica var. californica Le Roy Abrams 1902-5-11 2461 San Mateo Crystal Springs. Comment
  CAS-BOT-BC282497  Festuca elmeri Peter H. Raven 1950-6-3 2252 San Mateo Woods around San Andreas Lake 121 Comment
  CAS-BOT-BC278472  Festuca idahoensis George Oberlander 1950-4-23 799 San Mateo San Francisco Watershed Reserve Comment
  CAS-BOT-BC278473  Festuca idahoensis L. R. A. 1902-5-11 2450 San Mateo Open ground above La Honda Comment
  CAS-BOT-BC278479  Festuca idahoensis Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  JROH5498  Festuca myuros John H. Thomas 1974-4-19 17166 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5501  Festuca myuros Stephen N. Turitzin 1975-5-7 3 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB18778  Festuca myuros Schulte, John 1963-4-28 San Mateo Jasper Ridge; 3 miles SW of Stanford Campus; between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
Read comments
Oct 17 2011
  RSA582075  Festuca rubra D. D. Keck 1932-5-6 1478 San Mateo Above Millbrae Highlands Comment
  RSA86699  Festuca rubra D. D. Keck 1932-5-6 1478 San Mateo Above Millbrae Highlands Comment
  JROH246  Foeniculum vulgare Le Roy Abrams 1901-10-1 1025 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  UCD164213  Foeniculum vulgare Peter Rubtzoff 1978-9-16 9269 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction; in upper part of East Fork Colma Creek canyon. Comment
  RSA112397  Fragaria californica W. R. Dudley 1894-7-28 s.n. San Mateo Hill between Pescadero and La Honda, San Mateo County. Comment
  CAS-BOT-BC437029  Fragaria chiloensis A. D. E. Elmer 1903-4-1 4799 San Mateo San Pedro Comment
  CAS-BOT-BC437037  Fragaria chiloensis Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point about 1 mile north of Pigeon Point and about 39 miles south of San Francisco Comment
  SEINET11915234  Fragaria vesca subsp. californica L. S. Gill 1930-1 s.n. San Mateo Kuig Mt Comment
  SEINET6697562  Fragaria vesca subsp. californica R. L. Oliver 1976-4-18 s.n. San Mateo La Honda. San Mateo Memorial Park. Comment
  HSC23908  Frangula californica Mary Katherine Wicksten 1971-6-17 78 San Mateo Huddart Park, along Chickadee Trail Comment
  CAS-BOT-BC52674  Frangula californica subsp. californica James Newman 1951-6-5 96 San Mateo Searsville Lake Comment
  CAS-BOT-BC52679  Frangula californica subsp. californica A. D. E. Elmer 1903-7-1 4772 San Mateo Pilarcitos Stone Dam Comment
  CAS-BOT-BC52683  Frangula californica subsp. californica Walter Knight; Irja Knight 1965-5-15 1108 San Mateo Pig Ranch Ravine Comment
  CAS-BOT-BC53599  Frangula californica subsp. tomentella Carl B. Wolf 1927-12-31 1473 San Mateo 1/2 way up Kings Mt. Comment
  CAS-BOT-BC53600  Frangula californica subsp. tomentella Carl B. Wolf 1927-12-31 1472 San Mateo 1/2 way up Kings Mt. Comment
  SEINET3558049 Image available Frankenia grandifolia Lewis S. Rose 1933-7-20 33304 San Mateo Granada Sea Beach. Comment
  CAS-BOT-BC211602  Frankenia salina John Hunter Thomas 1949-10-16 1142 San Mateo Along ocean bluff, just north of outlet of San Gregorio Creek 60 Comment
  CAS-BOT-BC211603  Frankenia salina L. R. Abrams 1906-9-29 s.n. San Mateo Cooley's Landing Comment
  RSA391412  Frankenia salina L. S. Rose 1938-8-18 38230 San Mateo Brisbane 2 Comment
  RSA391414  Frankenia salina D. D. Keck 1931-9-27 1269 San Mateo Dumbarton Bridge. Comment
  CAS-BOT-BC223555  Fraxinus latifolia W. R. Dudley 1894-10-24 s.n. San Mateo Santa Cruz Peninsula. Near San Francisquito Creek Comment
  UC1085319  Fritillaria affinis F. A. Pitelka 1946-4-13 San Mateo Pilarcitos Lake Comment
  CAS-BOT-BC130115  Fritillaria affinis W. R. Dudley 1900-3-16 s.n. San Mateo By Redwood stage road below Woodside Comment
  JROH4682  Fritillaria affinis John H. Thomas 1964-4-11 10309 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road bank in oakwoodland below dam. Comment
  JEPS4954  Fritillaria biflora Inez Smith 1915-3-15 San Mateo Hillsborough, El Nido Hillsborough; , El Nido Comment
  CAS-BOT-BC130379  Fritillaria liliacea James McMurphy 1909-3-20 s.n. San Mateo Crystal Springs Comment
  RSA0037218  Fumaria Peter Rubtzoff 1988-5-12 9921 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction; NW part of the area, near the old Guadalupe Road between Bog Trail and Saddle Trail Junctions. Comment
  CDA34013  Fumaria capreolata D. G. Kelch 2011-3-13 11 .058 San Mateo Near Half Moon Bay along Capistrano Creek. Comment
  JEPS27349  Galium californicum subsp. californicum Rimo Bacigalupi with L. R. Heckard and Jim Roof 1961-4-24 7610 San Mateo just below rocky spur due north of true summit (directly below and ne of KQED radio power station); San Bruno Mountain 342 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
  JROH3786  Galium murale John H. Thomas 1958-5-10 7138 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3795  Galium murale John H. Thomas 1974-4-25 17217 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  JROH801  Gamochaeta ustulata John Hunter Thomas 1986-5-6 24004 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1536872  Gamochaeta ustulata G. H. True Jr. 1936-5-14 502 San Mateo canyon s of Salada Beach 365 Comment
  CAS-BOT-BC303470  Gamochaeta ustulata George Oberlander 1949-5-13 156 San Mateo San Francisco Watershed Reserve. About San Andreas Lake Comment
  CAS-BOT-BC303471  Gamochaeta ustulata Margaret A. Barry 1937-5-15 141 San Mateo Coal Mine Ridge Comment
  POM280064  Garrya elliptica Lyman Benson 1928-12-15 833 San Mateo Near La Honda, Santa Cruz Mt. Range. 305 Comment
  RSA681650  Garrya elliptica Annuschka Deb 1989-3-17 39 San Mateo Woodside. Comment
  CAS-BOT-BC278662  Gastridium phleoides Fred Hemphill 1973-5-14 812 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC278663  Gastridium phleoides George Oberlander 1949-6-25 263 San Mateo San Francisco Watershed Reserve Comment
  JROH5183  Gastridium phleoides John H. Thomas 1967-5-31 12920 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5184  Gastridium phleoides Oz Garton 1968-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5187  Gastridium phleoides John H. Thomas 1977-4-29 18568 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC278712  Gastridium ventricosum Elizabeth McClintock; Paul Reeberg 1988-8-12 s.n. San Mateo San Bruno Mountain. Along drainage ditch west of the Quarry; Crocker Industrial Park 45 Comment
  CAS-BOT-BC278713  Gastridium ventricosum Elizabeth McClintock; Paul Reeberg 1989-5-23 s.n. San Mateo San Bruno Mountain. Wax Myrtle Ravine 121 Comment
  JROH2007  Genista monspessulana John H. Thomas 1971-4-24 15778 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2009  Genista monspessulana John Hunter Thomas 1978-4-22 19107 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC219148  Genista monspessulana Doris M. Ladd 1954-5-1 50 San Mateo Road to La Honda, near Five Points Comment
  RSA0028486  Geranium dissectum John H. Thomas 1954-4-3 3825 San Mateo San Gregorio Creek drainage, 1.2 miles inland from San Gregorio. 61 Comment
  JROH5790  Geranium purpureum Toni Corelli 2016-4-25 1250 San Mateo Jasper Ridge Biological Preserve, Stanford University; outside exclosure Rd. G 121 Comment
  UC23577  Gilia achilleifolia subsp. achilleifolia J. Burtt Davy 1893-6-17 790 San Mateo Belmont South Coast Ranges, Belmont Comment
  JEPS101989  Gilia clivorum Dean W. Taylor 1994-5-10 14266 San Mateo Edgewood Park; ca. 300 meters SE of junction of Edgewood Road and Canada Road, ca. 200 m W of trail parallel to and on west side of Highway 280 137 Comment
  UC184620  Gilia tricolor subsp. tricolor Mrs. Inez Ray Smith 1915-5-26 San Mateo near Crystal Springs (Hillsborough); , near Crystal Springs Comment
  SEINET3869111  Ginkgo biloba Bill Popin 1988-10-9 44 San Mateo Central Park.; 0 Comment
  CAS-BOT-BC303683  Glebionis coronaria Robert S. Jr. Cox 1946-8-10 s.n. San Mateo Half Moon Bay Comment
  JROH2026  Glycyrrhiza lepidota John Hunter Thomas 1983-7-7 22819 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18352  Gnaphalium chilense C. B. Wolf 1927-1-29 465 San Mateo Pescadero Comment
  RSA17890  Gnaphalium chilense C. B. Wolf 1927-6-15 s.n. San Mateo Skyline Boulevard, S of San Francisco Comment
  SEINET11849362  Gnaphalium chilense E. H. Graham 1931-1 6933 San Mateo Ano Nuevo Pt., S of San Francisco Comment
  POM358849  Gnaphalium luteoalbum L. S. Rose 1936-2-12 36005 San Mateo Burlingame. 91 Comment
  POM58047  Gnaphalium palustre C. F. Baker 1902-10-20 1860 San Mateo Searsville Comment
  RSA201473  Grindelia camporum J. T. Howell 1964-12-6 41032 San Mateo Near Southern Pacific RR station, Millbrae. Comment
  CAS-BOT-BC304548  Grindelia hirsutula A. A. Heller 1907-5-28 8575 San Mateo Above Crystal Springs on the Half Moon Bay road 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
  CAS-BOT-BC304566  Grindelia hirsutula George Oberlander 1949-7-10 220 San Mateo San Francisco Watershed Reserve. Northern Cahill Ridge Comment
  POM190261  Grindelia hirsutula D. D. Keck 1932-5-25 1783 San Mateo Hills two miles W of Belmont Comment
  SD39801  Grindelia hirsutula Edith A. Purer 1933-7-27 5369 San Mateo Sand dunes, two miles south of Pigeon Point. Comment
  UC897053  Grindelia hirsutula Lewis S. Rose 1938-8-18 38229 San Mateo Brisbane 1 Comment
  JROH815  Grindelia hirsutula John H. Thomas 1970-4-4 15541 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH816  Grindelia hirsutula D. E. Breedlove 1971-5-31 19369 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH818  Grindelia hirsutula John Hunter Thomas 1978-5-12 19203 San Mateo Jasper Ridge Biological Preserve, Stanford University; draw to Ridge from near the dam Comment
  JROH822  Grindelia hirsutula John Hunter Thomas 1981-5-25 20630 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA93068  Grindelia hirsutula var. hirsutula D. D. Keck 1932-5-25 1783 San Mateo Hills 2 miles W of Belmont Comment
  RSA0110998  Grindelia stricta var. angustifolia L. S. Rose 1938-8-18 38229 San Mateo Brisbane 2 Comment
  SD71025  Grindelia stricta var. angustifolia John Thomas Howell 1964-12-6 41032 San Mateo Millbrae, vacant lot near Southern Pacific Railway Station Comment
  SEINET11835893  Grindelia stricta var. angustifolia E. A. Purer 1933-1 5525 San Mateo no further locality Comment
  POM51491  Grindelia stricta var. platyphylla Katherine Brandegee 1917-7-15 s.n. San Mateo Moss Beach. Comment
  RSA97498  Grindelia stricta var. platyphylla L. S. Rose 1954-8-29 54114 San Mateo Montara. Comment
  UC1146645  Hainardia cylindrica Freed W. Hoffman 1941-6-1 2238 San Mateo South Coast Ranges, along Bayshore Highway Bayshore Highway; South Coast Ranges, Bayshore Highway Comment
  SEINET11849180  Haplopappus ericoides E. A. Purer 1933-1 5511 San Mateo Skyline Drive Comment
  JROH841  Helenium puberulum John Hunter Thomas 1981-7-12 20696 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15964  Helenium puberulum John Rawlings, Ken Hickman 2016-5-26 1841 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
  UCR141419  Helenium puberulum June Latting 1975-6-8 s.n. San Mateo Central Coast, slough across from Pescadero dump (on Bean Hollow Rd.), west of Pescadero 9 Comment
  HSC23988  Helenium puberulum Mary Katherine Wicksten 1971-6-22 93 San Mateo Huddart Park; by Madrone Area, toward Miwok Shelter Comment
  RSA0034607  Helenium puberulum I. L. Wiggins 1929-7-4 3791 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  RSA523310  Helenium puberulum Gordon H. True Jr. 1937-7-23 805 San Mateo Along Skyline Blvd.-Salada Beach Road. 305 Comment
  CAS-BOT-BC224055  Helianthemum scoparium W. R. Dudley 1898-4-15 s.n. San Mateo Santa Cruz Mountain Peninsula. Jasper Ridge near Stanford University Comment
  CAS-BOT-BC224056  Helianthemum scoparium James McMurphy 1907-5-19 s.n. San Mateo Coal Mine Ridge Comment
  JROH1170  Helminthotheca echioides John Hunter Thomas 1977-6-16 18764 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU3591  Helminthotheca echioides A. I. Wilson 1967-9-18 2 San Mateo by W side Los Trancos Cr c. midway between Portola Valley & Palo Alto Comment
  CAS-BOT-BC314914  Hemizonia congesta subsp. luzulifolia Ned Cahill 1974-8-26 367 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City Comment
  JROH873  Hemizonia congesta subsp. luzulifolia John Hunter Thomas 1988-8-21 24562 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG39532  Hemizonia congesta subsp. luzulifolia L. S. Rose 1970-7-26 San Mateo Hillsborough, Black Mtn, Skyline Blvd 121 Comment
  UCSB57493  Hemizonia congesta subsp. luzulifolia Abrams, L. 1914-7-15 San Mateo Crystal Springs Comment
  CAS-BOT-BC314928  Hemizonia congesta subsp. luzulifolia J. McMurphy 1909-6-13 s.n. San Mateo Near Millbrae, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC314930  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1909-5-20 s.n. San Mateo Summit between San Mateo and Crystal Springs Lakes Comment
  UC193426  Hemizonia congesta subsp. luzulifolia H. M. Hall 1916-7-14 10232 San Mateo Hills west of Milbrae, near summit of road from Milbrae west to the lakes Comment
  UCR66751  Hemizonia corymbosa Edith A. Purer 1933-7-27 5339 San Mateo Central Coast, Pigeon Point 15 Comment
  POM360252  Hemizonia corymbosa subsp. corymbosa E. A. Purer 1933-7-27 5339 San Mateo Pigeon Point Comment
  POM284876  Hemizonia corymbosa subsp. corymbosa Lyman Benson 1934-7-4 6102 San Mateo Moss Beach; Pacific Ocean watershed 15 Comment
  RSA81560  Hemizonia luzulifolia James I. McMurphy 1908-8-20 s.n. San Mateo Near causeway, between lakes, Crystal Springs Reservoir. Comment
  RSA81595  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1910-8-24 s.n. San Mateo Corte Madera Creek. Comment
  POM223640  Hemizonia luzulifolia subsp. rudis L. S. Rose 1935-9-21 35652 San Mateo Redwood City. Comment
  RSA81634  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1908-08 s.n. San Mateo Summit of Crystal Springs-Belmont Road. Comment
  SEINET5782066 Image available Hemizonia pungens L. S. Rose 1941-10-10 41463 San Mateo along Bayshore Blvd, San Mateo Comment
  JROH248  Heracleum maximum John H. Thomas 1961-5-5 9210 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  JROH252  Heracleum maximum John Hunter Thomas 1986-5-1 23989 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing near San Francisquito Creek Comment
  CAS-BOT-BC310245  Hesperevax sparsiflora var. sparsiflora John H. Thomas 1971-5-2 15804 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  CAS-BOT-BC310246  Hesperevax sparsiflora var. sparsiflora John H. Thomas 1974-4-11 17126 San Mateo To the SE of Canada Road and Edgewood Road. NW of Woodside 152 Comment
  UCSC007738  Hesperocyparis macrocarpa Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  RSA112350  Hesperolinon congestum L. R. Abrams 1910-5-7 s.n. San Mateo Crystal Springs Lake. Comment
  RSA30460  Hesperolinon congestum A. A. Heller 1907-5-28 8572 San Mateo Near Crystal Springs. Comment
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May 14 2015
  JEPS121586  Hesperolinon disjunctum Ryan E. O'Dell 2013-6-13 San Mateo About 1.35 airline mile S of Black Mountain peak. Comment
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May 8 2019
  JROH2933  Hesperolinon micranthum John Hunter Thomas 1981-5-25 20624 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2937  Hesperolinon micranthum John Hunter Thomas 1986-6-9 24091 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM149362  Hesperomecon linearis A. D. E. Elmer 1903-06 4594 San Mateo San Bruno Hills Comment
  JROH1647  Heterocodon rariflorum Ann Lambrecht 2009-5-13 37 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just off Trail 10 west of big drainage. Comment
  CAS-BOT-BC148474  Heteromeles arbutifolia A. D. E. Elmer 1903-2-1 4575 San Mateo Portola Comment
  JROH3677  Heteromeles arbutifolia John H. Thomas 1965-12-19 11459 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3679  Heteromeles arbutifolia John H. Thomas 1973-6-10 16814 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET11267228  Heterotheca bolanderi Lewis S. Rose 1966-8-20 66087 San Mateo San Bruno Mountain.; 0 366 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
  JEPS49087  Heterotheca sessiliflora subsp. bolanderi Lewis S. Rose 1966-8-20 66087 San Mateo summit San Bruno Mt. 365 Comment
  RSA640952  Heterotheca sessiliflora subsp. bolanderi R. F. Thorne, George B. Everett 1963-6-9 32215 San Mateo On Kamchatka Point near TV tower on San Bruno Mountain. 335 Comment
  CAS-BOT-BC420888  Heuchera micrantha var. diversifolia L. S. Rose 1941-7-2 41289 San Mateo Kings Mountain 600 Comment
  RSA0063146  Heuchera micrantha var. hartwegii Carl B. Wolf 1929-6-8 3747 San Mateo Searsville Lake. Comment
  RSA0066088  Heuchera pilosissima John H. Thomas 1961-5-7 9283 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  RSA187345  Hierochloe occidentalis John H. Thomas 1954-4-3 3820 San Mateo Along San Gregorio Creek about 1.5 miles west of La Honda. 107 Comment
  JROH5577  Hirschfeldia incana John Rawlings 2012-7-9 1203 San Mateo Jasper Ridge Biological Preserve, Stanford University. 106 Comment
  UCD78192  Hoita orbicularis Robert E. Preston 2008-6-10 2640 San Mateo Between Lower Crystal Springs Reservoir and Crystal Springs Golf Course, ca. 0.33 mi W of jct Golf Course Rd and I-280 99 Comment
  CAS-BOT-BC289248  Holcus lanatus Josephine D. Randall 1907-7-23 158 San Mateo Near Crystal Springs Lake, Santa Cruz Mountain Peninsula Comment
  POM274869  Holodiscus discolor Lyman D. Benson 1937-8-15 8487 San Mateo Upper San Francisquito Creek, Santa Cruz Mountains. 244 Comment
  RSA85266  Holodiscus discolor D. D. Keck 1932-6-1 1795 San Mateo Above Searsville Lake, on road between Woodside and Skyline Blvd. Santa Cruz Mountains. Comment
  JROH3700  Holodiscus discolor var. discolor John Hunter Thomas 1989-6-6 24765 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA185013  Hordeum brachyantherum L. S. Rose 1963-4-27 63001 San Mateo Skyline Blvd, open hills west of San Mateo. 91 Comment
  CAS-BOT-BC284682  Hordeum brachyantherum subsp. 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
  CAS-BOT-BC284683  Hordeum brachyantherum subsp. brachyantherum John H. Thomas 1961-5-13 9341 San Mateo At Franklin Point Comment
  JROH5229  Hordeum brachyantherum subsp. californicum John Hunter Thomas 1981-4-27 20510 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC285045  Hordeum depressum John Thomas Howell No date on label 28969 San Mateo Redwood City Comment
  CAS-BOT-BC285046  Hordeum depressum David D. Keck 1932-4-29 1449 San Mateo Redwood City Comment
  JROH5778  Hordeum marinum subsp. gussoneanum John Rawlings 2016-4-19 1725 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rd E at Trail 11 108 Comment
  CAS-BOT-BC289395  Hordeum murinum subsp. glaucum Ned Cahill 1974-5-30 319 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City Comment
  CAS-BOT-BC289396  Hordeum murinum subsp. glaucum Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mi. N of Pigeon Point and about 39 mi S of San Francisco Comment
  POM205100  Hordeum murinum subsp. glaucum Copeland 1903-6-9 3334 San Mateo Montara Point. Comment
  CAS-BOT-BC173821  Hordeum murinum subsp. leporinum Peter Rubtzoff 1977-4-14 8944 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. In area of uppermost part of East Fork Colma Creek, at the northwest corner of Fog Forest. Comment
  JROH5260  Hordeum murinum subsp. leporinum Winkie Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab Comment
  RSA181231  Hordeum murinum subsp. leporinum John H. Thomas 1963-5-20 10152 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  SD99477  Hordeum murinum subsp. leporinum Ira L. Wiggins 1975-4-17 22143 San Mateo NE side of Southern Pacific right-of-way, between San Francisquito Creek and Willow Road, Menlo Park Comment
  CAS-BOT-BC271358  Hordeum vulgare Ned Cahill 1974-5-13 269 San Mateo Near the intersection of Canada and Edgwood Roads about 3 mi. westward from Redwood City Comment
  CAS-BOT-BC271361  Hordeum vulgare W. R. Dudley 1896-4-4 s.n. San Mateo Near Crystal Springs, Santa Cruz Mountain Peninsula Comment
  UC1536910  Horkelia californica Gordon H. True Jr. 1936-6-14 508 San Mateo Canyon s Salada Beach 304 Comment
  POM250804  Horkelia californica D. D. Keck 1939-7-1 5008 San Mateo 3 miles S of Pescadero, 1 mile from the ocean. 61 Comment
  RSA122282  Horkelia californica H. S. Yates 1935-2-3 5008 San Mateo 1/2 mile SE of Pigeon Point. 30 Comment
  SEINET7097934  Horkelia californica subsp. californica A. G. Vestal 1937-6-15 s.n. San Mateo Lat. 37 14' 13ao N, Long. 122 24' 55ao W (NAD27 converted to WGS84 decimal degrees). Pebble Beach west of Pescadero. UTM Zone 10, 551863 mE, 4121109 mN. Comment
  JEPS100822  Hypericum canariense Dean W. Taylor 2000-6-12 17462 San Mateo Highway 1 about 1.3 miles North of Piegon Point, just north of Yankee Jim Gulch 10 Comment
  UCD160240  Hypericum canariense Christopher Dillis 2015-5-15 3 San Mateo South of Pescadero on Hwy 1 (Cabrillo Hwy), 400 m south of Highway Brewing Company, then east 120 m on unmarked 1-lane dirt road; 10 m southwest of intersection with Old Coast Highway. 200 Comment
  CAS-BOT-BC311389  Hypochaeris glabra Javier Penalosa 1963-3-30 2721 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 91 Comment
  CAS-BOT-BC311492  Hypochaeris radicata A. D. E. Elmer 1903-4-1 4861 San Mateo Lake San Andreas Comment
  JROH937  Hypochaeris radicata John Hunter Thomas 1987-5-5 24239 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM361226  Hypochaeris radicata E. A. Purer 1933-7-27 5394 San Mateo Two miles south of Pigeon Point Comment
  CAS-BOT-BC311493  Hypochaeris radicata Elizabeth McClintock 1965-5-23 s.n. San Mateo San Bruno Mountain. Top ridge east of Nike Station Comment
  JROH5581  Impatiens balfourii John Rawlings 2013-7-2 1193 San Mateo Jasper Ridge Biological Preserve, Stanford University; downstream of Low Flow Crossing and about 100 m north of serpentine contact 78 Comment
  JROH5615  Iris douglasiana John Rawlings 2014-4-11 1218 San Mateo Jasper Ridge Biological Preserve, Stanford University; confluence of Bear and San Francisquito creeks just east of the terminus of Trail 20 growing at edge of the steep bank of San Francisquito Creek. 82 Comment
  SD38479  Iris douglasiana Marie Cummings 1933-4-14 16 San Mateo Half-Moon Bay. Comment
  UC306610  Iris douglasiana A. D. E. Elmer Jun 1903 4806 San Mateo San Mateo 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
  RSA24256  Iris douglasiana Carl B. Wolf 1940-11-12 9787 San Mateo North base of San Bruno Mountain or just south of Visitation Valley 152 Comment
  CAS-BOT-BC133654  Iris longipetala W. R. Dudley 1894-3-1 s.n. San Mateo Near South San Francisco Comment
  CAS-BOT-BC133657  Iris longipetala W. R. Dudley 1894-5-1 s.n. San Mateo On road from Woodside to Crystal Springs Comment
  CAS-BOT-BC133675  Iris longipetala Lewis S. Rose 1964-4-12 64020 San Mateo South San Francisco, San Bruno Mt. 60 Comment
  UC143465  Iris longipetala C. F. Baker 1902-3-22 348 San Mateo South San Francisco Comment
  CAS-BOT-BC133669  Iris longipetala W. S. Cooper 1925-4-3 s.n. San Mateo New Years Point Comment
  RSA366830  Iris missouriensis Glenn A. Gorelick 1967-4-4 s.n. San Mateo San Bruno Mts; overlooking Daly City near San Francisco. Comment
  POM290948  Iris missouriensis Lyman Benson 1929-3-21 1021 San Mateo Wet places north of South San Francisco Comment
  JROH4432  Iris pseudacorus John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC112614  Isolepis cernua LeRoy Abrams; Ira L. Wiggins 1956-7-2 56117 San Mateo Skyline Blvd. Hills W of San Mateo. 182 Comment
  CAS-BOT-BC112628  Isolepis cernua H. L. Mason 1921-6-2 s.n. San Mateo Pebble Beach, near Pescadero. Comment
  CAS-BOT-BC112441  Isolepis cernua Lewis Samuel Rose 1956-7-2 56117 San Mateo Skyline Blvd. hills of San Mateo 182 Comment
  CAS-BOT-BC112630  Isolepis cernua Elizabeth McClintock; P. Reeberg 1989-5-2 s.n. San Mateo In lower Owl Canyon 45 Comment
  UCD37961  Isolepis cernua Beecher Crampton 1962-6-11 6499 San Mateo San Mateo County, northern city limits of Pacifica, along State Highway 1, just southwest of its junction with Skyline Boulevard. Comment
  CAS-BOT-BC102322  Juglans hindsii D. E. Breedlove 1973-9-26 35553 San Mateo Pescadero Creek County Park 365 Comment
  CAS-BOT-BC102323  Juglans hindsii Ed Holm; Field Biol. Class, San Mateo High School 1984-7-24 s.n. San Mateo In creekbed of San Mateo Creek next to Polhemus Rd. just before it joins Crystal Springs Rd. and about 100 yds. below Comment
  UCSC008165  Juncus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UCR254887  Juncus balticus Peter Rubtzoff, Elizabeth McClintock 1990-8-31 10044 San Mateo San Bruno Mountains, Willow Pond (located near Saddle Trail), c. 0.15 miles north of junction with Old Guadalupe Trail 210 Comment
  JROH4448  Juncus bolanderi Ann Lambrecht 2004-7-21 12 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Corte Madera Creek. Comment
  JROH4451  Juncus bufonius var. bufonius John Hunter Thomas 1977-6-16 18811 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta in Searsville Lake. Comment
  POM259790  Juncus bufonius var. bufonius I. L. Wiggins, Roxana S. Ferris 1939-8-2 9291 San Mateo Ano Nuevo Point Comment
  JROH4461  Juncus bufonius var. occidentalis John H. Thomas 1967-5-12 12888 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC227613  Juncus effusus subsp. pacificus Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1989-6-3 s.n. San Mateo San Bruno Mountains. PG&E Marsh 15 Comment
  JROH4474  Juncus hesperius Toni Corelli 2008-10-1 346 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake in muddy area on shelf of dried lake bed. 103 Comment
  UC1101029  Juncus hesperius Herbert L. Mason and Verne Grant 1946-8-28 13088 San Mateo s of San Francisco (on Santa Cruz-Daly City Road #5) Comment
  UC1101089  Juncus hesperius Malcolm A. Nobs and S. Galen Smith 1949-8-26 1588 San Mateo about 1 mi s Half Moon Bay Comment
  UCD164600  Juncus hesperius Peter Rubtzoff; Roman Gankin 1975-9-11 8372 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  UC1100998  Juncus lescurii Malcolm A. Nobs and S. Galen Smith 1949-8-26 1600 San Mateo Mouth of Pescadero Creek Comment
  CAS-BOT-BC176166  Juncus lescurii Peter Rubtzoff 1976-6-30 8708 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Westernmost part of the area on slope across fence. Comment
  JROH4479  Juncus occidentalis John H. Thomas 1967-5-10 12856 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4481  Juncus occidentalis John Hunter Thomas 1978-4-20 19078 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM180973  Juncus occidentalis Kellogg, Brannan 1870-06 s.n. San Mateo San Gregorio Creek. Comment
  JROH4477  Juncus occidentalis H. J. Dengler 1961-5-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; old heron rookery Comment
  CAS-BOT-BC176165  Juncus patens Peter Rubtzoff; Roman Gankin 1975-9-11 8375 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC227612  Juncus patens Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1989-6-3 s.n. San Mateo San Bruno Mountains. Shearwater 22 Comment
  RSA18498  Juncus patens Carl B. Wolf 1927-7-14 622 San Mateo 1 mile south of summit of Kings Mt on Skyline Drive. Comment
  CAS-BOT-BC210152  Juncus phaeocephalus Peter Rubtzoff 1979-7-26 9297 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC210153  Juncus phaeocephalus Peter Rubtzoff 1978-7-8 9227 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  RSA783798  Juncus phaeocephalus var. paniculatus Peter Rubtzoff 1980-8-4 9563 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  RSA783799  Juncus phaeocephalus var. paniculatus Peter Rubtzoff 1978-8-17 9259 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JEPS67075  Juncus phaeocephalus var. phaeocephalus J. B. Davy 1893-6-22 756 San Mateo Lake Pilarcitas Comment
  JEPS67129  Juncus phaeocephalus var. phaeocephalus unknown 1925-5-28 1 San Mateo Salada Comment
  UCR121571  Juncus phaeocephalus var. phaeocephalus George K. Helmkamp, E. A. Helmkamp 1999-6-28 5001 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  SJSU9859  Juncus tenuis Roberta Sears 1968-5-25 81 San Mateo Woodside, 2 mi NNW of Searsville Lake Comment
  JEPS128398  Juncus xiphioides Adam C. Schneider 2014-5-17 137 San Mateo Crystal Springs Reservoir. Comment
  JROH4519  Juncus xiphioides John Hunter Thomas 1981-4-29 20513 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4521  Juncus xiphioides Toni Corelli 2009-7-22 352 San Mateo Jasper Ridge Biological Preserve, Stanford University. South of Road B, Below Dennis Martin Marker site in San Francisquito Creek 71 Comment
  JROH4038  Kickxia elatine Herbert Dengler 1961-9-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; S.F. Creek bed -- about midway between tiger lily site and old Zoology Cabin site -- directly below nesting sites of Kingfisher and Rough-winged Swallow Comment
  JROH4042  Kickxia spuria H. J. Dengler 1965-8-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; in S.F. Creek bed just below N. bend Comment
  JROH4051  Kickxia spuria John Hunter Thomas 1990-7-28 24937 San Mateo Jasper Ridge Biological Preserve, Stanford University; near main JRBP gate Comment
  JROH5266  Koeleria macrantha Louis Adams 1963-5-25 26 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassy field adjacent to Searsville Lake. Comment
  CAS-BOT-BC273738  Koeleria pyramidata Ned Cahill 1974-4-30 226 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  POM290111  Lactuca saligna Lyman Benson 1932-8-15 4050 San Mateo Menlo Park. 30 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
  UCR121559  Lapsana communis George K. Helmkamp, E. A. Helmkamp 1999-6-28 4977 A San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  CHSC68146  Lasthenia californica A. D. E. Elmer 1903-4-1 4507 San Mateo San Bruno Hills. Comment
  POM361529  Lasthenia californica Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  CAS-BOT-BC339049  Lasthenia californica Elizabeth McClintock 1978-4-24 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC339078  Lasthenia californica H. A. Dutton 1910-3-25 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  JROH970  Lasthenia californica subsp. californica Robert Robertson 1954-4-23 88 San Mateo Jasper Ridge Biological Preserve, Stanford University 170 Comment
  JROH976  Lasthenia californica subsp. californica John Hunter Thomas 1980-5-8 19955 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH978  Lasthenia californica subsp. californica John Hunter Thomas 1981-5-8 20563 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC517467  Lasthenia californica subsp. californica John Thomas Howell 1933-5-3 11204 San Mateo San Bruno Hills Comment
  UC762042  Lasthenia californica subsp. californica R. F. Hoover 1939-4-21 4055 San Mateo 2 mi s of Colma Comment
  CAS-BOT-BC324422  Lasthenia californica subsp. macrantha J. H. Thomas 1949-6-4 582 San Mateo Along coast, 1.4 miles south of road from coast to Pescadero Comment
  CAS-BOT-BC324423  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
  SJSU15805  Lasthenia californica subsp. macrantha Toni Corelli 2015-5-3 1191 San Mateo Montara State Beach west of Hwy. 1 and north of La Costanera restaurant in Montara, California. 11 Comment
  CAS-BOT-BC355498  Lasthenia glaberrima W. R. Dudley 1906-5-22 s.n. San Mateo Largest Pond, Coal Mine Ridge Comment
  CAS-BOT-BC355547  Lasthenia glabrata var. glabrata A. D. E. Elmer 1903-5-1 4426 San Mateo Millbrae Comment
  CAS-BOT-BC361417  Lasthenia maritima Sue Roberts 1954-5-1 69 San Mateo Pescadero Beach 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
  CHSC20641  Lathyrus jepsonii var. californicus Robert A. Schlising; S. Banwar 1963-3-15 2447 San Mateo Along King's Mtn. Road southeast of entrance to Huddart Park. Comment
  JEPS22020  Lathyrus littoralis G. Thomas Robbins with S. Galen Smith 1958-6-9 3859 San Mateo 0.5 mi n bridge crossing Pescadero Creek (about 0.25 mi w of State Highway 1) Comment
  SEINET11062227 Image available Lathyrus vestitus subsp. bolanderi A. A. Heller 1907-5-28 8583 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  RSA14975  Lathyrus vestitus subsp. vestitus L. S. Rose 1935-5-29 35191 San Mateo Kings Mountain Comment
  JROH2035  Lathyrus vestitus var. vestitus John Hunter Thomas 1983-4-14 21404 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UC1128955  Lathyrus vestitus var. vestitus H. S. Yates 1935-5-8 5203 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  UC864588  Lathyrus vestitus var. vestitus Lewis S. Rose 1932-5-3 32208 San Mateo San Bruno 182 Comment
  JEPS17917  Lavatera arborea Rimo Bacigalupi 1955-8-4 5450 San Mateo just n Montara Point lighthouse (at town of Montara); Montara Comment
  CAS-BOT-BC321095  Layia gaillardioides W. R. Dudley 1902-4-26 s.n. San Mateo Alpine Road Comment
  CAS-BOT-BC321115  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-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
  CAS-BOT-BC327452  Layia hieracioides David D. Keck 1932-6-1 1796 San Mateo Above Searsville Lake, on La Honda road, E slope of Santa Cruz Mountains Comment
  CAS-BOT-BC327467  Layia hieracioides John H. Thomas 1950-4-23 1646 San Mateo Ben Lomond Sand Hills, along Quail Hollow Road 152 Comment
  JROH985  Layia hieracioides John H. Thomas 1974-5-3 17236 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH988  Layia hieracioides John Hunter Thomas 1980-5-8 19945 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD39841  Layia hieracioides Edith A. Purer 1933-7-27 5397 San Mateo Two miles south of Pigeon Point Comment
  UC89183  Layia hieracioides Alice Eastwood 1899-5-2 San Mateo near Pt. San Pedro 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-BC327527  Layia hieracioides James I. McMurphy 1909-5-25 s.n. San Mateo Grade W of Crystal Springs Lakes Comment
  UCSC007762  Layia hieracioides Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  SEINET8735276 Image available Layia nemorosa Lewis S. Rose 1935-1 35149 San Mateo Burlingame Comment
  JROH991  Layia platyglossa John H. Thomas 1955-5-6 4085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM361731  Layia platyglossa Glenn A. Gorelick 1967-4-15 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  UC828912  Layia platyglossa Delzie Demaree 1932-5-8 9101 San Mateo Half-Moon Bay Comment
  UC913095  Layia platyglossa David D. Keck 1932-5-6 1491 San Mateo e side Crystal Springs Lake 60 Comment
  CAS-BOT-BC382217  Layia platyglossa David D. Keck 1932-6-18 1980 San Mateo Skyline Blvd. at Langley HIll (SW of Stanford Unviersity) 600 Comment
  POM54371  Layia platyglossa subsp. platyglossa A. D. E. Elmer 1903-04 5022 San Mateo Crystal Springs Lake. Comment
  RSA10278  Layia platyglossa subsp. platyglossa H. A. Barker 1927-5-14 659 San Mateo North of Half Moon Bay. Comment
  CAS-BOT-BC266606  Legenere limosa W. R. Dudley 1906-5-22 s.n. San Mateo Santa Cruz Mountain Peninsula. Ponds, Coal Mine Ridge Comment
  CAS-BOT-BC527269  Lemna minuta Walter Knight; Irja Knight 1965-3-28 s.n. San Mateo April Brook adjacent to Radio Road Comment
  JROH2791  Lepechinia calycina D. E. Breedlove 1971-5-31 19348 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  UC25883  Lepechinia calycina Alice Eastwood Apr 1896 San Mateo Crystal Springs Comment
  CAS-BOT-BC89140  Lepidium didymum Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountains. Below parking lot. Comment
  CAS-BOT-BC89216  Lepidium draba Sister Anna 1950-4-1 s.n. San Mateo Belmont Academy. Comment
  JROH1550  Lepidium nitidum John Hunter Thomas 1982-1-3 20793 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA95516  Lepidium oxycarpum L. S. Rose 1953-4-5 53009 San Mateo Redwood City, along Bayshore Highway. 3 Comment
  SJSU8368  Lepidium oxycarpum A. H. Lilleberg 1961-4-9 San Mateo SE of Redwood City Marina, Redwood City Comment
  JROH1556  Lepidium pinnatifidum Herbert Dengler 1972-9-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of S.F. Cr. by old bridge site -- where entrance opposite Whiskey Hill leads some 1000' to S.F. Cr. crossing Comment
  CAS-BOT-BC12952  Lepidium strictum George Oberlander 1949-6-25 229 San Mateo San Francisco Watershed Reserve. On northern Cahill Ridge. Comment
  CAS-BOT-BC226598  Leptosiphon ambiguus C. F. B. 1902-5-4 753 San Mateo Woodside Comment
  CAS-BOT-BC226610  Leptosiphon ambiguus George Oberlander 1950-4-22 778 San Mateo San Francisco Watershed Reserve Comment
  JROH5928  Leptosiphon androsaceus Herb Dengler 1970-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; East serpentine Comment
  RSA0063624  Leptosiphon androsaceus L. R. Abrams 1902-5-11 2445 San Mateo San Mateo Canyon. Comment
  RSA12467  Leptosiphon androsaceus Harry A. Dutton 1900-4-3 5827 San Mateo Woodside serpentine [?] Comment
  CAS-BOT-BC226729  Leptosiphon latisectus D. D. Davis 1903-4-1 s.n. San Mateo Searsville Ridge Comment
  POM128438  Leptosiphon liniflorus L. R. Abrams 1902-5-4 2416 San Mateo Woodside. Comment
  POM65847  Leptosiphon liniflorus C. F. Baker 1902-5-4 760 San Mateo Woodside. Comment
  RSA133950  Leptosiphon liniflorus John H. Thomas 1958-5-13 7166 San Mateo About 3 miles SW of San Mateo along Skyline Blvd., 0.3 mi. S of its intersection with Black Mt. Rd. 305 Comment
  JROH3194  Leptosiphon parviflorus John Hunter Thomas 1990-4-19 24810 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville end of large open grassland Comment
  SD38815  Leptosiphon parviflorus Miss Cummings, McCallum 1933-4-26 3714 San Mateo Hills back of Stanford Campus. Comment
  UC106678  Leptosiphon rosaceus Katharine Brandegee 1905-6-19 San Mateo Moss Beach Halfmoon Bay Comment
  CAS-BOT-BC123030  Lessingia arachnoidea Charles Fuller Baker 1902-9-2 1548 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC324054  Lessingia arachnoidea John Thomas Howell 1927-5-10 2388 San Mateo Crystal Springs Lake 213 Comment
  CAS-BOT-BC324057  Lessingia arachnoidea John Thomas Howell 1927-9-10 3099 San Mateo Crystal Springs Lake 213 Comment
  CAS-BOT-BC324069  Lessingia arachnoidea J. H. Thomas 1958-9-15 7473 San Mateo 0.4 miles north of dam on San Mateo Creek along Skyline Blvd. 91 Comment
  POM197769  Lessingia arachnoidea John T. Howell 1926-10-9 2220 a San Mateo Near Crystal Springs Lake Comment
  POM49389  Lessingia arachnoidea L. R. Abrams 1902-9-2 2996 San Mateo Crystal Lake Comment
  RSA195537  Lessingia arachnoidea John H. Thomas 1958-9-15 7473 San Mateo 0.4 miles north of Dam on San Mateo Creek along Skyline Blvd 91 Comment
  SBBG39542  Lessingia arachnoidea L. S. Rose 1970-7-26 70077 San Mateo Skyline Blvd., Hillsborough, Black Mtn 121 Comment
  UCR70748  Lessingia arachnoidea David D. Keck 1931-10-5 1280 San Mateo San Francisco Bay Region, Crystal Springs Lake, east side 168 Comment
  SEINET1782116  Lessingia bakeri Carl F. Baker 1902-10-20 1834 San Mateo Searsville. Comment
  JROH1003  Lessingia glandulifera var. glandulifera C. F. Leitholt 1893-7-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Comment
  JROH1007  Lessingia glandulifera var. glandulifera John H. Thomas 1961-6-7 9532 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1009  Lessingia glandulifera var. glandulifera John H. Thomas 1963-5-15 10091 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1020  Lessingia glandulifera var. glandulifera John Hunter Thomas 1982-7-3 21062 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
  SEINET7063127  Lessingia hololeuca A. G. Vestal 1963-7-12 s.n. San Mateo Jasper Ridge. UTM Zone 10, 568418mE, 4140415mN. (WGS84/NAD83). 174 Comment
  SEINET10958233 Image available Lessingia hololeuca Charles F. Baker 1902-10-20 Baker 1834 San Mateo Small colonies on grassy slopes. Comment
  CAS-BOT-BC342094  Leucanthemum vulgare John Thomas Howell 1949-7-4 25356 San Mateo On Skyline Blvd. north of Millbrae Comment
  CAS-BOT-BC272188  Leymus triticoides John H. Thomas 1962-5-20 10113 San Mateo Ano Nuevo Island about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  UC37061  Leymus triticoides unknown San Mateo San Mateo Comment
  CAS-BOT-BC173819  Lilaea scilloides Peter Rubtzoff 1978-7-8 9224 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC130791  Lilium pardalinum George Oberlander 1950-5-6 823 San Mateo San Mateo Creek Comment
  RSA14962  Limnanthes douglasii subsp. douglasii L. S. Rose 1935-5-4 35146 San Mateo Skyline Blvd., W. of San Bruno. Comment
  SJSU15432  Limnanthes douglasii subsp. ornduffii Toni Corelli 2010-4-30 625 San Mateo Agriculture field along east side of Hwy 1 south of Moss Beach and directly opposite Half Moon Bay airport. Type locality. 17 Comment
  POM259951  Limosella acaulis I. L. Wiggins, Roxana S. Ferris 1939-8-2 9294 San Mateo Ano Nuevo Point Comment
  UC306700  Linanthus ambiguus A. D. E. Elmer Apr 1903 4913 San Mateo Crystal Springs Lake Comment
  UC124881  Linanthus androsaceus C. F. Baker 1902-4-6 469 San Mateo Crystal Springs Lake Comment
  SEINET8729325 Image available Linanthus androsaceus subsp. croceus Herbert L. Mason 1935-1 8315 San Mateo Pebble Beach, Pescadero Comment
  UC202827  Linanthus liniflorus A. D. E. Elmer Jun 1903 4704 San Mateo s end Crystal Springs Lake Comment
  SEINET12279096  Linanthus liniflorus L. S. Rose 1932-1 32217 San Mateo San Bruno 183 Comment
  SD39367  Linum californicum McCallum 1933-5-24 3707 San Mateo Fields on Stanford Campus. Comment
  UC198505  Linum usitatissimum Katharine Brandegee 1917-8-29 San Mateo Moss Beach Comment
  CAS-BOT-BC389735  Lithocarpus densiflorus J. Lovelle 1973-7-29 26 San Mateo Pescadero Cr. Comment
  CDA29905  Lithocarpus densiflorus D. G. Kelch 2009-6-9 9 .408 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  CAS-BOT-BC36071  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1893-10-1 s.n. San Mateo Bear Gulch, Sierra Morena Comment
  CAS-BOT-BC36066  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1905-9-24 s.n. San Mateo [Cup] Gulch, upper part of Alpine grade, Black Mountain Comment
  CAS-BOT-BC436219  Lithophragma heterophyllum C. F. Baker 1902-4-6 651 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC436221  Lithophragma heterophyllum Ira L. Wiggins 1928-4-14 2900 San Mateo Alpine Creek Road Comment
  JROH3895  Lithophragma heterophyllum John Hunter Thomas 1983-4-5 21319 San Mateo Jasper Ridge Biological Preserve, Stanford University. Path to redwood area Comment
  CAS-BOT-BC436220  Lithophragma heterophyllum Volney Rattan 1883-1-1 s.n. San Mateo Milbrae Comment
  JROH3901  Lithophragma heterophyllum Brenda Butner and Toni Corelli 1990-3-30 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 3 Comment
  CAS-BOT-BC342465  Logfia gallica John H. Thomas 1955-4-6 4849 San Mateo East facing slope of San Bruno Mountain just north of South San Francisco 91 Comment
  CAS-BOT-BC342466  Logfia gallica John H. Thomas 1961-5-7 9265 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH741  Logfia gallica John Hunter Thomas 1982-5-5 20920 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC342473  Logfia gallica Eric Walther 1920-5-1 s.n. San Mateo Woodside Comment
  JROH5295  Lolium perenne John Rawlings 2005-5-15 1009 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road F, 7 yards east of its intersection with the south terminus of Trail 15. In the middle of the road in area subject to regular mowing. 176 Comment
  UCD164421  Lolium perenne Peter Rubtzoff 1977-6-21 9058 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, northwest of Fog Forest. Comment
  JEPS89917  Lomatium caruifolium var. caruifolium Dean W. Taylor 1988-3-30 9493 San Mateo n. slope of s.e. ridge near the ridgecrest San Bruno Mt. (right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain); Santa Cruz Mts., San Francisco South 7 1/2 Quad., San Bruno 237 Comment
  SJSU10974  Lomatium dasycarpum G. I. Tourtlotte 1968-3-16 San Mateo by Sawyer Ridge near Crystal Springs Reservoir Comment
  JROH263  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1973-4-20 16582 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH264  Lomatium dasycarpum subsp. dasycarpum John H. Thomas 1973-4-20 16582 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM132686  Lomatium dasycarpum subsp. dasycarpum A. D. E. Elmer 1903-04 s.n. San Mateo Crystal Springs Lake. Comment
  RSA452094  Lomatium dasycarpum subsp. dasycarpum Glenn A. Gorelick 1967-2-10 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  UC1368794  Lomatium macrocarpum David H. French 1968-4-19 2857 San Mateo w. Redwood City (s.e. of Upper Crystal Springs Reservoir, s.e. side Edgewood Rd., ca. 100 yds. n.e. of intersection w/ Canada Rd.) Comment
  RSA212215  Lomatium macrocarpum L. S. Rose 1970-4-23 70031 San Mateo Black Mountain, Skyline Blvd, west of San Mateo 122 Comment
  CAS-BOT-BC240585  Lonicera hispidula A. D. E. Elmer 1903-7-1 4596 San Mateo Lake San Andreas Comment
  CAS-BOT-BC240586  Lonicera hispidula A. D. E. Elmer 1903-6-1 4255 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC240594  Lonicera hispidula W. R. Dudley 1896-9-15 s.n. San Mateo Santa Cruz Mountain Peninsula. El Corte Madera Creek, Santa Cruz Mts. Comment
  CAS-BOT-BC240597  Lonicera hispidula A. D. E. Elmer 1903-6-1 4255 San Mateo Crystal Springs Lake Comment
  JROH1655  Lonicera hispidula John H. Thomas 1975-6-5 17934 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack Comment
  JEPS85576  Lonicera hispidula var. vacillans Craig Dremann 1986-8-30 323 San Mateo e La Honda (along Cal. Highway 84 (Woodside-La Honda Road), mile marker 6.68, 150 ft w between road and creek) Comment
  UC484309  Lonicera hispidula var. vacillans Carl B. Wolf 1930-11-5 1805 San Mateo 2 mi w La Honda; Santa Cruz Mtns. 304 Comment
  CAS-BOT-BC243966  Lonicera involucrata var. ledebourii Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo Lowe part of Colma Canyon, San Bruno Mountain Comment
  POM46739  Lonicera involucrata var. ledebourii C. F. Baker 1903-4-8 1918 San Mateo San Andreas Lake Comment
  UC595117  Lonicera involucrata var. ledebourii David D. Keck 1938-5-30 4726 San Mateo San Gregorio 30 Comment
  CAS-BOT-BC243965  Lonicera involucrata var. ledebourii Walter Knight 1964-9-14 834 San Mateo Ridge between Peak Mt. and Highway 1 Comment
  CAS-BOT-BC243972  Lonicera involucrata var. ledebourii George Oberlander 1950-4-2 599 San Mateo South boundary, San Franciso Watershed Reserve Comment
  CAS-BOT-BC290619  Lotus Peter Rubtzoff 1987-7-31 9821 San Mateo Best Products Company parking lot on east side of Gellert Blvd. north of Westborough Blvd. intersection, South San Francisco. Comment
  UCR121554  Lotus corniculatus George K. Helmkamp, E. A. Helmkamp 1999-6-28 4990 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-BC389704  Lotus corniculatus L. Sigal 1969-7-1 s.n. San Mateo Belmont Comment
  RSA276357  Lotus corniculatus Jane Turner, Francis M. Ball 1962-7-7 1088 San Mateo Highway 1, ca. 10 miles N of Santa Cruz County line. Comment
  UC69628  Lotus micranthus J. Burtt Davy 1895-4-20 1045 San Mateo Lake Pilarcitos Comment
  JEPS55903  Lotus scoparius Dr. L. M. Newlon 1921-7-30 249 San Mateo Salada Comment
  SEINET12151380  Lotus stipularis Unknown 1932-1 9152 San Mateo rd to Kings Mt Comment
  POM276693  Lotus unifoliolatus Lyman Benson 1930-5-26 2142 San Mateo Stanford University. Lake Searsville. 152 Comment
  UC202829  Lotus wrangelianus A. D. E. Elmer 1903-5-1 4741 San Mateo Belmont Comment
  UCR240782  Lupinus T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3514 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
  UC82226  Lupinus C. F. Baker 1902-5-10 816 San Mateo Summit of Coast Range Comment
  POM10965  Lupinus affinis C. F. Baker 1902-04 1928 San Mateo Crystal Springs Lake. Comment
  UC1481350  Lupinus affinis Dunn and Brown 1946-5-15 2542 San Mateo 3 mi NE of La Honda ( on the SE side of the highway from Woodside to La Honda); San Francisco Peninsula Comment
  JROH2113  Lupinus affinis H. J. Dengler 1972-3-26 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; 100 yds. +/- Quercus chrysolepis site in field Comment
  CAS-BOT-BC195785  Lupinus albifrons var. albifrons Charles Piper Smith 1922-4-22 3495 San Mateo Belmont, Half Moon Bay road Comment
  CAS-BOT-BC195797  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-21 48466 San Mateo Highway 5 - C.S. Dam-Bridge, 0.5 miles south Comment
  CAS-BOT-BC195805  Lupinus albifrons var. albifrons Charles Piper Smith 1948-4-23 48149 San Mateo Canada Road - 4 miles north of Woodside Comment
  CAS-BOT-BC195811  Lupinus albifrons var. albifrons Fred Hemphill 1973-4-8 719 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC195786  Lupinus albifrons var. albifrons Charles Piper Smith 1946-3-26 46115 San Mateo Highway 5, San Francisco County Jail Road north Comment
  CAS-BOT-BC195794  Lupinus albifrons var. albifrons Charles Piper Smith 1948-6-22 48499 San Mateo Highway 5 - junction Woodside 6 mile road, 2.8 miles north Comment
  CAS-BOT-BC195806  Lupinus albifrons var. albifrons Charles Piper Smith 1921-4-9 3295 San Mateo Half Moon Bay Road Comment
  CAS-BOT-BC196114  Lupinus albifrons var. collinus R. Hoffough 1929-5-18 611 San Mateo Crystal Springs Lake - Skyline Blvd near San Francisco Comment
  CAS-BOT-BC196128  Lupinus albifrons var. collinus A. D. E. Elmer 1903-5-1 4642 San Mateo San Bruno Hills Comment
  CAS-BOT-BC196130  Lupinus albifrons var. collinus C. F. B. 1902-3-22 341 San Mateo Crystal Springs Lake Comment
  RSA22000  Lupinus albifrons var. collinus J. T. Howell 1938-5-1 13770 San Mateo Colma Canyon Comment
  RSA800198  Lupinus albifrons var. collinus Robert F. Thorne, Percy C. Everett 1963-6-9 32209 San Mateo On top of San Bruno Mountain, near TV tower. 335 Comment
  CAS-BOT-BC8524  Lupinus apricus C. P. Smith 1908-4-13 1404 San Mateo Stanford University, field back of Cedro Cottage Comment
  CAS-BOT-BC27392  Lupinus apricus C. P. Smith 1908-5-2 1427 San Mateo Stanford University. Stockfarm bridge. Comment
  SBBG11114  Lupinus arboreus D. E. Breedlove 1961-6-18 599 San Mateo 3 mi S of rd to Half Moon Bay 365 Comment
  SD39019  Lupinus arboreus Edith A. Purer 1933-7-27 5371 San Mateo Partially stabilized sand dunes 2 miles south of Pigeon Point Comment
  SD39024  Lupinus arboreus Edith A. Purer 1932-7-18 4007 San Mateo Half Moon Bay, sand dunes Comment
  UC511362  Lupinus arboreus Lyman Benson 1930-6-14 2150 San Mateo San Gregorio; San Gregorio ocean bluffs 30 Comment
  SEINET10451219  Lupinus arboreus Harold W. Rickett 1928-7-10 Rickett s.n. San Mateo La Honda, CA. Comment
  POM349926  Lupinus arboreus var. arboreus Unspecified s.n. San Mateo San Francisco coast. Comment
  RSA10285  Lupinus arboreus var. arboreus H. A. Barker 1927-5-14 664 San Mateo North of Half Moon Bay. Comment
  RSA176779  Lupinus arboreus var. arboreus John H. Thomas 1963-5-20 10109 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  JEPS91323  Lupinus arboreus var. eximius Dean W. Taylor 1992-3-19 12337 San Mateo in saddle between San Pedro Mountain and North Peak, near BM 924 Montara Mountain; ; Montara Mountain, in saddle between San Pedro Mountain and North Peak, near BM 924 274 Comment
  JROH2114  Lupinus bicolor John H. Thomas 1974-4-4 17076 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2117  Lupinus bicolor John Hunter Thomas 1982-5-18 20943 San Mateo Jasper Ridge Biological Preserve, Stanford University; old road now partly plowed up, near main gate Comment
  UC155231  Lupinus bicolor A. A. Heller 1911-4-12 10251 San Mateo near Stanford University; near Stanford University Comment
  SEINET10484850  Lupinus bicolor Walter Knight, Irja Knight 1965-4-4 Knight 1008 San Mateo Bitter Cherry Ravine. In chaparral. Occasional plant - no colonies. Comment
  UC1048668  Lupinus bicolor Lewis S. Rose 1942-3-30 42006 San Mateo Mills Field 1 Comment
  UC1057458  Lupinus bicolor G. Thomas Robbins 1937-4-11 103 San Mateo along roadside near Redwood City; near Redwood City Comment
  POM10639  Lupinus bicolor subsp. umbellatus C. F. Baker 1902-5-10 816 San Mateo Summit of Coast Range. Comment
  SEINET10484980  Lupinus bicolor var. umbellatus Walter Knight, Irja Knight 1965-3-28 Knight 975 San Mateo From flower garden adjacent to april brook. In grassy area. Comment
  SEINET10903830  Lupinus bicolor var. umbellatus Walter Knight, Irja Knight 1964-4-13 Knight 709 San Mateo Power line ridge in grassland. Comment
  CAS-BOT-BC215065  Lupinus chamissonis Charles Piper Smith 1950-5-15 50134 San Mateo Highway 1, 0.4 miles N of Edgemar Comment
  CAS-BOT-BC215066  Lupinus chamissonis Charles Piper Smith 1948-4-20 48107 San Mateo Highway 1, Edgemar sand dunes Comment
  POM10690  Lupinus densiflorus var. palustris C. F. Baker 1902-5-1 850 San Mateo Crystal Springs Lake. Comment
  SEINET11071961 Image available Lupinus latifolius A. A. Heller 1907-5-23 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  UC75238  Lupinus latifolius var. latifolius C. F. Baker 470 San Mateo Crystal Springs Lake; ; Crystal Springs Lake, San Mateo Co. Comment
  UC311393  Lupinus microcarpus var. densiflorus A. D. E. Elmer May, 1903 4847 San Mateo Lake San Andreas Comment
  UC729631  Lupinus microcarpus var. densiflorus Carl B. Wolf 1929-5-17 3712 San Mateo Alpine Road e Skyline Blvd. 304 Comment
  UCD23304  Lupinus microcarpus var. densiflorus Alan T. Whittemore 1976-5-29 106 San Mateo Crystal Springs Canyon, about 1/2 mile below (East of) dam. 39 Comment
  JROH5865  Lupinus nanus John H. Thomas 1975-4-5 17716 B San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET10486158  Lupinus polycarpus Donald E. Bright 1962-4-16 Bright 223 San Mateo Disturbed roadside, along hwy. 17, 15 Mi ne of santa cruz. 549 Comment
  UCD23307  Lupinus polyphyllus Alan T. Whittemore 1976-5-29 114 San Mateo San Francisco Fish and Game Refuge. East side of Lower Crystal Springs Lake, on Sawyer's Camp Road. 94 Comment
  UC201977  Lupinus polyphyllus var. polyphyllus A. D. E. Elmer May, 1903 4444 San Mateo San Pedro Comment
  POM11052  Lupinus succulentus A. D. E. Elmer 1903-06 4681 San Mateo San Pedro. Comment
  POM276254  Lupinus vallicola subsp. apricus Lyman D. Benson 1930-5-1 2048 San Mateo Stanford Univ.; San Lorenzo mt. range. 122 Comment
  RSA178676  Lupinus vallicola subsp. apricus L. R. Abrams 1926-4-19 s.n. San Mateo Junction of Los Trancos and San Francisquito Creek. Comment
  RSA3803  Lupinus vallicola subsp. apricus L. R. Abrams 1914-4-20 5128 San Mateo At the confluence of Los Troncos and San Francisquito creeks. Comment
  SJSU16062  Lupinus variicolor Toni Corelli 2010-4-9 515 San Mateo Rockaway Headlands, southwest of Rockaway Beach, Pacifica Comment
  UC1129743  Lupinus variicolor H. S. Yates 1935-2-3 5005 San Mateo 1/2 mi se Pigeon Pt.; Santa Cruz Quad. Comment
  RSA249488  Lupinus variicolor John F. Emmel 1972-3-26 395 San Mateo Along Guadalupe Cyn. Parkway near NE-facing slope 0.4 air mile SSW of Midway Village School, San Bruno Mts. 91 Comment
  SEINET10969935  Lupinus variicolor Smith 1947-4-25 Smith 47180 San Mateo Skyline hwy 5, 1.4 mi s of old hwy 1 jct. Comment
  UCD109673  Lupinus variicolor P. B. Kennedy 1921-6-3 s.n. San Mateo back of Millbrae Ranch. Comment
  CAS-BOT-BC441268  Luzula macrantha Ira L. Wiggins 1925-4-1 1684 San Mateo First bridge across small creek on Kings Mountain Road above Woodside Comment
  CAS-BOT-BC441365  Luzula subsessilis Walter Knight; Irja Knight 1965-4-4 s.n. San Mateo San Bruno Mountain: Bitter Cherry Ravine Comment
  CAS-BOT-BC441366  Luzula subsessilis Javier Penalosa 1963-3-30 2723 San Mateo San Bruno Mountain: North of Randolph Drive at Hillside Blvd in South San Francisco 91 Comment
  CAS-BOT-BC441373  Luzula subsessilis Ira L. Wiggins 1928-4-14 2907 San Mateo Alpine Creek Road Comment
  JROH3398  Lysimachia latifolia John Hunter Thomas 1991-4-25 24997 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  JROH2943  Lythrum hyssopifolia L. R. Abrams 1914-7-1 5113 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  JROH2944  Lythrum hyssopifolia John H. Thomas 1967-11-5 14126 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2949  Lythrum hyssopifolia John Hunter Thomas 1978-5-23 19226 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1190031  Lythrum hyssopifolia J. H. Thomas 1954-5-28 4242 San Mateo just n of South San Francisco (San Bruno Mountain); San Bruno Mountain 30 Comment
  JROH2947  Lythrum hyssopifolia John Hunter Thomas 1977-6-16 18751 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old racing oval Comment
  CAS-BOT-BC343914  Madia elegans A. D. E. Elmer 1903-5-1 4662 San Mateo Alpine School House Comment
  CAS-BOT-BC344498  Madia exigua John H. Thomas 1971-5-2 15867 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  JROH1045  Madia exigua D. E. Breedlove 1971-5-31 19383 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH1053  Madia exigua John Hunter Thomas 1981-5-19 20609 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1057  Madia exigua John Hunter Thomas 1982-7-3 21066 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC343328  Madia gracilis Peter H. Raven 1950-4-30 1990 San Mateo Montara Mts. 121 Comment
  JEPS14885  Madia gracilis V. F. Hesse 1956-6-21 1936 San Mateo n Saratoga summit 731 Comment
  JROH1069  Madia gracilis Oz Garton 1968-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1071  Madia gracilis John H. Thomas 1969-5-28 15093 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1083  Madia gracilis John Hunter Thomas 1983-7-7 22820 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1084  Madia gracilis John Hunter Thomas 1985-5-7 23642 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1087  Madia gracilis John Hunter Thomas 1986-5-1 23997 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG33375  Madia gracilis A. D. E. Elmer -Apr-1901 San Mateo Stanford University Comment
  CAS-BOT-BC343331  Madia gracilis George Oberlander 1949-7-24 270 San Mateo San Francisco Watershed Reserve. Near Pilarcitos Lake Comment
  UCR121558  Madia madioides George K. Helmkamp, E. A. Helmkamp 1999-6-28 4977 B San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  RSA152256  Madia madioides I. L. Wiggins 1925-04 1663 San Mateo On Kings Mtn Road three fourths of a mile above Woodside. Comment
  CAS-BOT-BC345125  Madia sativa Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC345126  Madia sativa Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  HSC24008  Madia sativa Mary Katherine Wicksten 1971-6-15 21 San Mateo Huddart Park near horse ring Comment
  RSA176607  Madia sativa John H. Thomas 1961-8-27 9695 San Mateo Colma; open sandy field near intersection of El Camino Real and F Street 46 Comment
  UC913116  Madia sativa David D. Keck 1930-10-15 988 San Mateo sw Woodside; Coast Ranges 450 Comment
  CAS-BOT-BC510725  Maianthemum dilatatum John H. Thomas 1961-5-7 9288 San Mateo San Bruno Mountain in northern part of county 396 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
  CAS-BOT-BC511479  Maianthemum racemosum subsp. amplexicaule Josephine Randall 1908-3-22 s.n. San Mateo Corte de Madera Canyon near Alpine Road Comment
  CAS-BOT-BC512105  Maianthemum racemosum subsp. amplexicaule Daniel Cohen 1953-4-11 17 San Mateo About 1/3 of the way up Jasper Ridge Road from Searsville Lake. Comment
  CAS-BOT-BC512106  Maianthemum racemosum subsp. amplexicaule George Oberlander 1950-3-18 583 San Mateo Pilarcitos Canyon; San Francisco Watershed Reserve Comment
  CAS-BOT-BC512110  Maianthemum racemosum subsp. amplexicaule Mrs. S. G. Suttiffe 1921-4-3 s.n. San Mateo Lake Pilarcitos 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
  JROH4712  Maianthemum stellatum John Hunter Thomas 1978-7-8 19256 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM226215  Maianthemum stellatum Lewis S. Rose 1933-4-9 33070 San Mateo Belmont Comment
  SEINET3992115  Maianthemum stellatum Unknown 1941-3-12 41024 San Mateo Skyline Blvd. W. of San Bruno 152 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
  UCSB17388  Maianthemum stellatum Schulte, John 1963-4-9 San Mateo Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  CAS-BOT-BC203909  Malacothamnus aboriginum A. A. Heller 1901-7-13 s.n. San Mateo Spring Valley Lake Comment
  CAS-BOT-BC204103  Malacothamnus hallii Carl B. Wolf 1929-6-8 3746 San Mateo 2.5 mi. w. of Los Altos on the road to La Honda Comment
  SEINET7248026  Malva arborea D. R. Kaplan 1961-1 s.n. San Mateo 100 ft. East of Moss Beach Comment
  JROH2965  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
  SEINET5560624  Marah fabacea H. S. Gentry 1931-1 13 San Mateo Collected 1.5 miles W of San Mateo, Half-Moon Bay Road. Comment
  UC306750  Meconella californica A. D. E. Elmer April 1903 4499 San Mateo San Mateo; toward Crystal Springs Lake Comment
  CAS-BOT-BC422675  Meconella californica W. R. Dudley 1894-4-4 s.n. San Mateo Santa Cruz Peninsula. Near Crystal Springs Lake Comment
  CAS-BOT-BC422676  Meconella californica W. R. Dudley 1894-3-26 s.n. San Mateo Santa Cruz Peninsula. By road from San Mateo to Crystal Springs Reservoir 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
  UC2049895  Medicago polymorpha H. W. Johansen 1958-5-18 32 San Mateo Jones Gulch, 5 miles S of La Honda Comment
  JROH2170  Medicago polymorpha John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA101048  Medicago sativa G. Oberlander 1949-9-25 382 San Mateo Lower Crystal Springs Lake, San Francisco Watershed Reserve. Comment
  CAS-BOT-BC269478  Melica californica W. R. Dudley 1900-3-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Fields East of Salida Valley Comment
  JROH5302  Melica imperfecta John Hunter Thomas 1978-4-8 19059 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5308  Melica imperfecta John Hunter Thomas 1985-4-22 23551 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Rattlesnake Rocks Comment
  CAS-BOT-BC264189  Melica subulata W. R. Dudley 1900-5-19 s.n. San Mateo Summit La Honda Stage road, Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC264241  Melica torreyana Robert Robertson 1954-4-23 97 San Mateo Jaspers Ridge near Searsville Lake 170 Comment
  CAS-BOT-BC264255  Melica torreyana George Oberlander 1949-5-21 185 San Mateo South boundary, San Francisco Watershed Reserve Comment
  CAS-BOT-BC264256  Melica torreyana Walter Knight; Irja Knight 1965-5-12 s.n. San Mateo Southwest Canyon, San Bruno Mountain Comment
  SEINET3561264 Image available Melica torreyana Lewis S. Rose 1932-5-3 32216 San Mateo San Bruno. 183 Comment
  UC2049893  Melilotus indicus H. W. Johansen 1955-4-23 80 San Mateo Crystal Springs Road, 2 miles W of San Mateo Comment
  JROH2192  Melilotus indicus John Hunter Thomas 1982-5-18 20933 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2828  Mentha X piperita John H. Thomas 1968-10-29 14856 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1244714  Mentha pulegium John H. Thomas 1959-8-22 8079 San Mateo about 5 mi sw Palo Alto (Jasper Ridge); Jasper Ridge 152 Comment
  RSA135751  Mercurialis annua John H. Thomas 1955-11-9 5503 San Mateo Fallow Brussel Sprout field near Sanchez Adobe House, San Pedro Valley, about 8.5 miles south of San Francisco - San Mateo County line, and 0.9 mile inland from the ocean. Comment
Read comments
Aug 8 2010
  UCD142325  Mercurialis annua T. C. Fuller 1958-10-16 1444 San Mateo Pedro Valley, E of Sanchez Adobe House, S of Linda Mar Blvd. Comment
  CAS-BOT-BC428898  Micranthes californica James McMurphy 1902-3-22 s.n. San Mateo Above Portola Comment
  RSA176742  Micropus californicus John H. Thomas 1963-5-12 10086 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  CAS-BOT-BC348571  Micropus californicus var. californicus John H. Thomas 1974-4-11 17138 B San Mateo Area to the SE of Canada Road and Edgewood Road. NW of Woodside 152 Comment
  JEPS40609  Micropus californicus var. californicus R. F. Hoover 1941-4-23 4909 San Mateo Redwood City Hills Comment
  JROH1119  Micropus californicus var. californicus John H. Thomas 1958-5-10 7152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1121  Micropus californicus var. californicus John H. Thomas 1963-5-12 10085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA130390  Micropus californicus var. subvestitus W. R. Dudley 1906-5-13 s.n. San Mateo Open hills southwest of San Mateo Comment
  CAS-BOT-BC348719  Microseris bigelovii Kenton L. Chambers 1956-6-20 1048 San Mateo Pebble Beach near Pescadero Point Comment
  CAS-BOT-BC348720  Microseris bigelovii John H. Thomas 1966-4-30 11591 San Mateo Bluffs at San Gregorio Beach Comment
  CAS-BOT-BC349025  Microseris douglasii subsp. douglasii A. D. E. Elmer 1903-5-1 4721 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC349026  Microseris douglasii subsp. douglasii Ned Cahill 1974-5-13 273 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  POM52854  Microseris douglasii subsp. douglasii A. D. E. Elmer 1903-05 4721 San Mateo Crystal Springs Lake Comment
  POM87986  Microseris douglasii subsp. douglasii L. R. Abrams 1902-5-4 2418 San Mateo Woodside. Comment
  UC26859  Mimulus arvensis J. Burtt Davy 1895-4-20 1078 San Mateo Crystal Springs Lake Comment
  JROH4073  Mimulus aurantiacus var. aurantiacus John H. Thomas 1974-5-29 17405 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4074  Mimulus aurantiacus var. aurantiacus John H. Thomas 1975-6-5 17936 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack Comment
  JROH4077  Mimulus aurantiacus var. aurantiacus John Hunter Thomas 1980-6-5 19998 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA420292  Mimulus aurantiacus var. aurantiacus Glenn A. Gorelick 1967-5-24 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco Comment
  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
  JROH4081  Mimulus cardinalis John Hunter Thomas 1992-5-26 25358 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing Comment
  UC26963  Mimulus grandis J. Burtt Davy Jun 21 1893-Jun 23 1893 1138 San Mateo Pilarcitos Lake and Canyon Comment
  POM5176  Mimulus guttatus A. D. E. Elmer 1903-04 4857 San Mateo Crystal Springs Lake. Comment
  RSA60035  Mimulus guttatus G. R. Campbell 1950-6-7 15484 San Mateo 7 miles north of Junction of Hwy 5 and 9; hills west of Palo Alto. 457 Comment
  UCD122715  Mimulus microphyllus R. S. Woglum 1935-5-25 996 San Mateo King City-Coalinga, along State Highway 198. Comment
  UCD122861  Mimulus primuloides Clyde Elmore 1967-9-14 s.n. San Mateo The Sequoias (Lutheran retirement community), off Portola Road, Woodside. Comment
  CAS-BOT-BC388827  Minuartia douglasii A. D. E. Elmer 1903-4-1 5042 San Mateo San Bruno Hills Comment
  CAS-BOT-BC388833  Minuartia douglasii Lewis S. Rose 1956-5-7 56067 San Mateo Skyline Blvd. w. of San Mateo 182 Comment
  CAS-BOT-BC388832  Minuartia douglasii Ned Cahill 1974-5-9 169 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  NY429333  Monardella franciscana A. D. E. Elmer 07 1903 4766 San Mateo San Pedro Comment
  CAS-BOT-BC214068  Monardella villosa Elsie Zeile 1909-5-20 s.n. San Mateo Burlingame Comment
  CAS-BOT-BC214084  Monardella villosa Josephine D. Randall 1907-6-1 178 San Mateo Los Trancos Road near Stanford University, Santa Cruz Peninsula 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
  CAS-BOT-BC214173  Monardella villosa Gelsomina Smith 1951-6-5 106 San Mateo Searsville Lake edge 106 Comment
  SEINET10582382  Monardella villosa subsp. franciscana A. Graff 1993-7-13 Graff 185 San Mateo Devil's Slide, in arroyos on inland side of Hwy. 1. Mostly past bloom. Coastal scrub. Comment
  CAS-BOT-BC327790  Monolopia gracilens James McMurphy 1909-5-25 s.n. San Mateo La Honda Comment
  CAS-BOT-BC349586  Monolopia major Le Roy Abrams 1898-5-1 s.n. San Mateo New Grade Road, Santa Cruz Mts. Comment
  UCSC007765  Morella californica Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UC1057459  Muilla maritima G. Thomas Robbins 1937-4-11 100 San Mateo near Spring Valley Lakes, along road to Woodside Comment
  RSA159422  Myosotis latifolia John H. Thomas 1961-5-14 9370 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek. San Francisco Watershed Reserve. 152 Comment
  JROH1397  Myosotis latifolia John H. Thomas 1961-5-5 9207 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  CAS-BOT-BC101769  Myrica californica W. R. Dudley 1894-9-22 s.n. San Mateo Preston's Ravine, Portola Valley 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
  JROH2978  Myrtus communis John H. Thomas 1967-6-1 12980 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC260021  Nassella lepida W. R. Dudley 1900-3-17 s.n. San Mateo By road half way up S slope of Montara Mountain Comment
  CAS-BOT-BC260238  Nassella pulchra H. A. Dutton 1900-2-1 s.n. San Mateo Woodside Comment
  CAS-BOT-BC60480  Nasturtium officinale J. H. Thomas 1959-7-8 8018 San Mateo At Pescadero Beach. Comment
  CAS-BOT-BC60478  Nasturtium officinale Walter Knight; Irja Knight 1963-8-6 s.n. San Mateo San Bruno Mountain. Crocker Avenue. Comment
  SEINET183956  Navarretia heterodoxa Lewis S. Rose 1936-5-28 36306 San Mateo Emerald Lake, west of Redwood City 91 Comment
  UC101994  Navarretia heterodoxa Alice Eastwood Jun 1897 San Mateo Crystal Springs Comment
  UC662623  Navarretia heterodoxa L. S. Rose 1941-6-12 41269 San Mateo hills w Redwood City; Emerald Lake 120 Comment
  JROH3197  Navarretia heterodoxa W. R. Dudley 1895-6-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Point of Rocks near Searsville Lake Comment
  JROH3205  Navarretia heterodoxa (John H. Thomas) 1983-6-29 22715 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1124148  Navarretia squarrosa A. E. Wieslander 1935-2-3 504 San Mateo 0.5 mi se Pigeon Pt.; Santa Cruz Quad. 30 Comment
  JROH3319  Navarretia viscidula H. J. Dengler 1973-5-18 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Above south-east edge of Searsville Lake, ca. 100 m. Growing in small 4' dia. patch by trail, about 15' outside oak (Q. agrifolia) cover. Comment
  UCSC005138  Nemophila Randall Morgan 1994-3-12 2154 San Mateo Coal Mine Ridge Comment
  RSA15266  Nemophila menziesii var. menziesii Carl B. Wolf 1927-3-2 230 San Mateo Above Searsville Lake. Comment
  RSA120713  Nemophila parviflora S. S. Tillett, I Sternberg 1956-6-24 535 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  SEINET3840801  Nemophila parviflora Unknown 2005-6-21 5 .368 San Mateo Northeast corner of Pilarcitos Lake, SF Water District land 250 Comment
  CAS-BOT-BC219488  Nemophila parviflora George Oberlander 1950-4-16 691 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  POM65250  Nemophila parviflora var. parviflora C. F. Baker 1902-4-12 509 San Mateo La Honda. Comment
  CAS-BOT-BC140438  Oemleria cerasiformis W. R. Dudley 1904-3-3 42 San Mateo Portola Valley, Santa Cruz Mts. Comment
  JROH3706  Oemleria cerasiformis John H. Thomas 1965-2-22 10552 San Mateo Jasper Ridge Biological Preserve, Stanford University. Above edge of Searsville Lake Comment
  UC676734  Oemleria cerasiformis Reed C. Rollins 1941-2-22 2938 San Mateo about 10 mi nw Palo Alto 152 Comment
Read comments
Apr 10 2013
  SEINET12189809  Oenothera elata L. K. Henry 1956-1 s.n. San Mateo along Pacific Ocean at Pigeon Point Lighthouse on Rt 1 Comment
  JEPS11666  Orobanche californica subsp. californica Mrs. Clara Hunt Sep 1908 San Mateo Farallone City. Comment
  CAS-BOT-BC499694  Orobanche californica subsp. californica J. H. Thomas 1979-7-31 19684 San Mateo San Bruno Mountain, in northern part of county. Upper portion of Reservoir Hill, NE of Guadalupe Parkway Comment
  POM59435  Orobanche californica subsp. californica W. A. Setchell 1909-8-29 173 San Mateo Farallone City, on slopes facing the ocean. Comment
  JROH3088  Orobanche uniflora John H. Thomas 1968-5-3 14444 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC502962  Orobanche vallicola James McMurphy 1906-8-6 s.n. San Mateo Searsville Lake Comment
  CAS-BOT-BC502963  Orobanche vallicola Burleigh H. Murray 1929-7-20 s.n. San Mateo Beresford, near San Mateo Comment
  POM49738  Orthocarpus densiflorus L. R. Abrams 1902-5-11 2455 San Mateo Crystal Lake. Comment
  RSA92815  Orthocarpus densiflorus Peter H. Raven 1950-4-16 1776 San Mateo Colma Canyon, San Bruno Mountains. 183 Comment
  RSA402011B  Orthocarpus erianthus Glenn A. Gorelick 1967-4-15 s.n. San Mateo San Bruno Mts. overlooking Daly City near San Francisco. Comment
  POM15369  Orthocarpus floribundus C. F. Baker 1903-4-8 1926 San Mateo San Andreas Lake Comment
  RSA88573  Orthocarpus lithospermoides L. S. Rose 1954-5-17 54043 San Mateo Emerald Lake, E of Redwood City. 183 Comment
  UCR2998  Oxalis incarnata Wm. Horn Jr. 1963-4-7 630407- 01 San Mateo San Francisco Bay, Hillsborough, 2240 Redington Road 30 Comment
  POM139435  Oxalis oregana A. D. E. Elmer 1903-03 4532 San Mateo Portola Comment
  CAS-BOT-BC422866  Papaver somniferum Walter Knight; Irja Knight 1965-5-15 s.n. San Mateo San Bruno Mountain. Pig Ranch Ravine Comment
  JROH5872  Parentucellia viscosa Ann Lambrecht 2011-4-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; 6-8 m off road from Main Gate to visitor parking lot, about 3 m north of power line Comment
  CDA15877  Parietaria judaica J. Xerogeanes 2000-1-4 PDR 1242905 San Mateo North Coast; Chorry Rd., San Bruno. 0 Comment
  JROH5341  Paspalum dilatatum John Rawlings 2010-8-19 1061 San Mateo Jasper Ridge Biological Preserve, Stanford University. Adjacent to caretakers residence. 106 Comment
  UCD88912  Paspalum distichum W. R. Dudley 1903-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Searsville Lake. Comment
  JROH1403  Pectocarya pusilla John H. Thomas 1981-4-27 20499 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5551  Pectocarya pusilla John Rawlings 2013-4-16 1126 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 2 extension about 120 meters northwest from trail marker, east side of trail 136 Comment
  POM63452  Pectocarya pusilla A. D. E. Elmer 1903-04 4676 San Mateo Portola. 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
  JROH4100  Pedicularis densiflora John H. Thomas 1956-4-7 5602 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes 182 Comment
  SBBG32290  Pedicularis densiflora L. S. Rose 1964-3-23 San Mateo Emerald Lake, W of Redwood City 121 Comment
  JROH4106  Pedicularis densiflora Duncan M. Porter 1961-1-18 736 San Mateo Jasper Ridge Biological Preserve, Stanford University; Westridge end of Jasper Ridge Comment
  RSA14207  Pedicularis densiflora Carl B. Wolf 1927-1-24 190 San Mateo 1/2 way up east slope of La Honda Grade, Santa Cruz Mtns. Comment
  CAS-BOT-BC207023  Pelargonium vitifolium J. H. Thomas 1949-6-4 589 San Mateo Along coast, 1.4 miles S of road leading to Pescadero. Comment
  POM203868  Pelargonium vitifolium J. T. Howell 1932-12-21 10864 San Mateo Near Pescadero. Comment
  CDA35479  Pennisetum villosum Ed Finley 1992-11-1 PDR# 1013531 San Mateo South San Francisco; north of Oyster Point Blvd., Southern Pacific Railroad right-of-way. 0 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
  RSA137339  Pentachaeta alsinoides John H. Thomas 1958-5-10 7155 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  POM88666  Pentachaeta exilis L. R. Abrams 1902-4-13 2326 San Mateo San Andreas Lake. Comment
  UC133379  Pentachaeta exilis C. F. Baker 1902-4-4 446 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC77008  Pentagramma triangularis subsp. triangularis Margaret Barry 1937-5-8 84 San Mateo Coal Mine Ridge Comment
  JROH106  Pentagramma triangularis subsp. triangularis John H. Thomas 1955-5-6 4983 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH111  Pentagramma triangularis subsp. triangularis John H. Thomas 1974-11-5 17663 San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail below dam. Comment
  POM132815  Perideridia kelloggii A. D. E. Elmer 1901-09 3411 San Mateo Crystal Springs Comment
  SEINET192395  Perideridia lemmonii Ira Wiggins, Roxana Ferris 1939-8-2 9295 San Mateo Ano Nuevo Point Comment
  JROH3243  Persicaria amphibia W. R. Dudley 1909-10-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Searsville Lake. Comment
  JROH3247  Persicaria amphibia John H. Thomas 1974-8-3 17496 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3249  Persicaria amphibia John Hunter Thomas 1979-9-9 19728 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake. Comment
  CAS-BOT-BC413609  Persicaria amphibia W. R. Dudley 1909-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula. North Pond - north end of county Comment
  JROH3244  Persicaria amphibia J. H. Thomas 1960-6-1 8771 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Searsville Lake near dam. Comment
  CAS-BOT-BC389692  Persicaria maculosa Mary K. Wicksten 1972-6-9 78 San Mateo San Francisquito Creek Comment
  RSA342247  Phacelia californica Robert F. Thorne, P. C. Everett 1963-6-9 32213 San Mateo On top of San Bruno Mountain, near TV tower. 335 Comment
  UC1523540  Phacelia californica Robert F. Thorne and P. Everett 1963-6-9 32213 San Mateo top of mt. near TV tower; San Bruno Mountain 335 Comment
  UCD120425  Phacelia distans Lewis S. Rose 1963-5-23 63060 San Mateo Thornton Beach Park. 30 Comment
  JEPS3114  Phacelia divaricata James G. Daly 1934-1 156 San Mateo on ridge s road to La Honda; Santa Cruz Mountains Comment
  CDA929  Phacelia malvifolia D. G. Kelch, B. G. Baldwin, Sue Bainbridge, Abigail Moore 2005-6-21 5 .367 San Mateo S.F. Water District land, near Spring Valley. NE corner Pilarcitos Lake. Comment
  UC206190  Phacelia malvifolia Katharine Brandegee San Mateo Montara Point Comment
  JROH5358  Phalaris aquatica John Hunter Thomas 1979-5-22 19577 San Mateo Jasper Ridge Biological Preserve, Stanford University. In parking lot. Comment
  JROH5368  Phalaris aquatica John Hunter Thomas 1983-7-7 22828 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5375  Phalaris aquatica W. Lennihan 1989-5-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Just to right before causeway at Whiskey Hill, on San Francisquito Creek. Comment
  SD227705  Phalaris aquatica G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3743 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek 106 Comment
  CAS-BOT-BC259000  Phalaris californica John Thomas Howell 1938-6-4 13885 San Mateo Burlingame Comment
  CAS-BOT-BC259001  Phalaris californica A. D. E. Elmer 1903-6-1 4699 San Mateo Crystal Springs Lake Comment
  UCD88557  Phalaris californica Beecher Crampton 1962-6-11 6487 San Mateo 5 miles W of Belmont, at junction of Ralston Avenue and Skyline Boulevard. At foot of western slope of Pulgas Ridge. Comment
  UCD88567  Phalaris californica P. B. Kennedy 1916-5-1 s.n. San Mateo Crocker Estate, Burlingame. Comment
  CAS-BOT-BC250642  Phalaris minor A. D. E. Elmer 1903-6-1 4427 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC250643  Phalaris minor A. D. E. Elmer 1903-6-1 4427 San Mateo Crystal Springs Lake Comment
  CDA2317  Phalaris paradoxa T. C. Fuller 1967-6-13 15948 San Mateo Road to San Mateo, 0.7 mile east of Skyline Blvd., east above Crystal Springs Lake. 0 Comment
  RSA681616  Philadelphus lewisii Deb Annuschka 1989-6-13 239 San Mateo YBN [Yerba Buena Nursery] next to lath house. Comment
  SD38211  Phoradendron leucarpum subsp. tomentosum Edith A. Purer 1934-8-14 5914 San Mateo On highway, west of Stanford University campus Comment
  JROH4289  Phoradendron serotinum subsp. tomentosum John H. Thomas 1960-3-1 8536 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  RSA132361  Phoradendron villosum John H. Thomas 1960-3-1 8536 San Mateo Jasper Ridge, about 5 miles SW of Palo Alto. 152 Comment
  CAS-BOT-BC142176  Physocarpus capitatus Paul Arnaud 1941-4-19 s.n. San Mateo Redwood City, before Hesler Farm entrance. Comment
  CAS-BOT-BC142180  Physocarpus capitatus Margaret A. Barry 1937-5-15 112 San Mateo Woods on Coal Mine Ridge Comment
  JROH3723  Physocarpus capitatus John H. Thomas 1975-6-5 17928 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near lowflow crossing Comment
  JROH3724  Physocarpus capitatus John H. Thomas 1975-6-5 17928 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near lowflow crossing Comment
  JROH3729  Physocarpus capitatus John Hunter Thomas 1981-4-5 20281 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along San Francisquito Creek Comment
  SEINET12151537  Pickeringia montana J. I. McMurphy 1906-1 50 San Mateo King's Mtn., Santa Cruz Mtns 457 Comment
  CAS-BOT-BC206942  Pickeringia montana var. montana J. I. McMurphy 1906-5-20 80 San Mateo King's Mt. Road, Santa Cruz Mts. - Santa Cruz Peninsula 457 Comment
  JROH2201  Pickeringia montana var. montana John H. Thomas 1974-5-29 17402 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Riders' shack Comment
  RSA19297  Pickeringia montana var. montana L. S. Rose 1937-5-23 37321 San Mateo Belmont 91 Comment
  RSA18516  Piperia transversa Carl B. Wolf 1927-7-14 603 San Mateo Summit of Kings Mountain Rd. Comment
  JROH1407  Plagiobothrys bracteatus Herbert Dengler 1966-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC228134  Plagiobothrys chorisianus Edward Lee Greene 1886-5-10 s.n. San Mateo Belmont Comment
  UC586830  Plagiobothrys chorisianus David Keck 1938-5-30 4728 San Mateo Pescadero Comment
  UC78190  Plagiobothrys chorisianus K. Brandegee 1892-4-9 San Mateo South San Francisco Comment
  CAS-BOT-BC228129  Plagiobothrys chorisianus Walter & Irja Knight 1965-4-26 s.n. San Mateo San Bruno Mountains. Devil's Arroyo Comment
  CAS-BOT-BC228137  Plagiobothrys chorisianus Roxana S. Ferris 1920-4-23 1953 San Mateo The Santa Cruz Mountain Peninsula. On abandoned road above N fork of Peters Creek, about spring 640 Comment
  CAS-BOT-BC228158  Plagiobothrys chorisianus var. chorisianus L. R. Abrams 1909-4-27 s.n. San Mateo The Santa Cruz Mountain Peninsula. Near Crystal Springs Lake Comment
  JEPS85242  Plagiobothrys chorisianus var. chorisianus Roy E. Buck and James A. West 1985-6-3 535 San Mateo just s unnamed sw-draining creek N of Cascade Creek (ca 2.2 air km e of Whitehouse Canyon Rd-CA Hwy 1 jct, 3.8 air km e of Franklin Point); Cascade Ranch 67 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
  CAS-BOT-BC228160  Plagiobothrys chorisianus var. chorisianus W. R. Dudley 1900-3-18 s.n. San Mateo The Santa Cruz Mountain Peninsula. Top of first summit E of Salada Valley Comment
  JROH1426  Plagiobothrys nothofulvus D. E. Breedlove 1971-5-31 19362 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH1435  Plagiobothrys tenellus P. R. Hickborn 1920-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA6602  Plantago coronopus D. G. Kelch 2002-5-13 s.n. San Mateo Highway 92 at Quarry gate. Comment
  UCSC003378  Plantago elongata Randall Morgan 2001-5-5 3725 San Mateo south of Franklin Point, San Mateo County Comment
  JEPS127787  Plantago erecta Adam C. Schneider with C. Matt Guilliams 2013-4-7 58 San Mateo Along dirt road running parallel to overhead power transmission lines. GPS coordinates approximate. Comment
  JROH3112  Plantago erecta John H. Thomas 1974-4-13 17151 San Mateo Jasper Ridge Biological Preserve, Stanford University; near area H Comment
  JROH3125  Plantago erecta John Hunter Thomas 1991-5-2 25017 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA184882  Plantago erecta L. S. Rose 1965-5-3 65056 San Mateo San Bruno Mountain, North end. 183 Comment
  RSA278542  Plantago erecta subsp. erecta T. C. Emmel 1965-4-4 32 San Mateo San Bruno Hills, above Daly City and Brisbane. Comment
  POM61248  Plantago lanceolata Copeland 1903-6-5 3325 San Mateo Montara Point. Comment
  JROH3130  Plantago lanceolata John H. Thomas 1971-4-3 15743 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  SEINET12284426  Plantago maritima Unknown 1933-1 10441 San Mateo near Pigeon Point Comment
  JEPS22008  Plantago maritima var. californica G. Thomas Robbins 1958-6-9 3872 San Mateo about 0.5 mi s Pescadero Point (above the beach at Pebble Beach); Pebble Beach Comment
  CAS-BOT-BC92020  Platystemon californicus Lewis S. Rose 1933-5-17 33170 San Mateo Redwood City. Comment
  JROH4245  Plectritis congesta subsp. brachystemon John Hunter Thomas 1981-4-23 20490 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5878  Plectritis congesta subsp. brachystemon Diane Renshaw 2014-4-30 1222 San Mateo Jasper Ridge Biological Preserve, Stanford University; by fallen tree between Alan's Mountain (utility pole mound) and San Francisquito Creek 89 Comment
  JROH5922  Plectritis congesta subsp. brachystemon H. J. Dengler 1964-3-29 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Grass island Comment
  JROH4253  Plectritis macrocera John Hunter Thomas 1980-5-6 19923 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA800330  Poa annua Peter Rubtzoff 1988-5-3 9911 San Mateo San Bruno Mountain, ''Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road in the northwest part of the ''Saddle area, east of Saddle Trail Junction. Comment
  CAS-BOT-BC261657  Poa infirma Peter Rubtzoff 1988-5-3 9918 San Mateo San Bruno Mountain, Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road in the northwest part of the Saddle area, near its crossing of the upper part of East Fork Colma Creek. Comment
  CAS-BOT-BC247422  Poa pratensis Phillip C. Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. No. West Radio Road Comment
  CAS-BOT-BC247423  Poa pratensis George Oberlander 1950-5-6 880 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  JROH5417  Poa pratensis subsp. pratensis John Hunter Thomas 1982-6-7 21028 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5419  Poa pratensis subsp. pratensis John Rawlings 2008-5-13 1000 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Ranger Bath, Searsville townsite 107 Comment
  SEINET10855247  Poa scabrella LeRoy R. Abrams Abrams 1162 San Mateo Menlo Park-reservoir. Comment
  JROH6181  Poa secunda subsp. secunda John Rawlings 2004-4-4 786 San Mateo Jasper Ridge Biological Preserve, Stanford University; east serpentine near Escobar Gate. 165 Comment
  CAS-BOT-BC244245  Poa unilateralis G. L. Stebbins, Jr. 1943-4-8 3349 San Mateo San Bruno Hills, 1 mile E of Daly City Comment
  CAS-BOT-BC244246  Poa unilateralis John H. Thomas 1955-4-6 4841 San Mateo E facing slope of San Bruno Mountain just N of South San Francisco 91 Comment
  CAS-BOT-BC244251  Poa unilateralis Louis F. Pitelka 1973-4-30 s.n. San Mateo Bolsa Point, about 1 mile N of Pigeon Point and about 39 miles S of San Francisco Comment
  CAS-BOT-BC474768  Pogogyne serpylloides Robert E. Preston 2011-6-16 2865 San Mateo Santa Cruz Mountains. Oil Creek watershed, 1.8 mi NW of Waterman Gap 268 Comment
  POM204332  Polygala californica I. L. Wiggins 1929-7-4 3781 San Mateo 4 miles W of La Honda on hill road to Pescadero Beach. Comment
  CAS-BOT-BC166771  Polygonum arenastrum Peter Rubtzoff 1977-4-16 8953 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC414107  Polygonum aviculare subsp. aviculare Elizabeth McClintock; Paul Reeberg 1989-8-19 s.n. San Mateo San Bruno Mountains. Reservoir Hill Comment
  JROH3265  Polygonum aviculare subsp. depressum John Hunter Thomas 1982-7-22 21087 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Saersville Lab. Comment
  RSA10408  Polygonum coccineum Carl B. Wolf 1927-6-15 2166 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  CAS-BOT-BC109241  Polygonum paronychia Carl B. Wolf 1929-5-25 3726 San Mateo Pebble Beach south of Pescadero. Comment
  RSA18362  Polygonum paronychia Carl B. Wolf 1929-5-25 3726 San Mateo Pebble Beach, S of Pescadero Comment
  POM144853  Polygonum punctatum C. F. Baker 1902-10-20 1858 San Mateo Searsville. Comment
  CAS-BOT-BC76907  Polypodium californicum W. R. Dudley 1899-11-30 s.n. San Mateo Santa Cruz Mountain Peninsula - Pescadero Creek, near Iverson's Comment
  JROH75  Polypodium californicum John H. Thomas 1964-4-19 10313 San Mateo Jasper Ridge Biological Preserve, Stanford University. At Searsville end of ridge Comment
  RSA485490  Polypodium californicum Lyman Benson 1929-3-5 977 San Mateo King s Mountain Comment
  UCD136938  Polypodium californicum Lewis S. Rose 1964-2-6 64001 San Mateo Kings Mountain. 609 Comment
  UCSC007770  Polypodium californicum Becky Hendricks, Shayne Coppedge 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC76807  Polypodium glycyrrhiza Rachael A. Tickner 1974-1-1 s.n. San Mateo Butano Sandstone Bluffs, Butano State Park, southern part of county. Comment
  UC931949  Polypodium scouleri Verne Grant and Alva Grant 1946-8-30 7851 San Mateo ranch 1 mi s of Daly City (on Hwy. 5) Comment
  CAS-BOT-BC233155  Polypogon interruptus C. F. Leitholt 1894-8-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Devil's [Canon] Canyon Comment
  CAS-BOT-BC233156  Polypogon interruptus A. D. E. Elmer 1903-7-1 4694 San Mateo Pilarcitos Stone Dam Comment
  SEINET10602416  Polypogon interruptus Adolph D. E. Elmer Elmer 4694 San Mateo Pilarcitos Creek. Comment
  CAS-BOT-BC237347  Polypogon monspeliensis Margaret A. Barry 1937-6-22 176 San Mateo Coal Mine Ridge Comment
  UC1100376  Polypogon monspeliensis Malcolm A. Nobs and S. Galen Smith 1949-8-26 1592 San Mateo marshes mouth of Pescadero Creek Comment
  UCD91322  Polypogon monspeliensis August L. Hormay 1932-5-29 s.n. San Mateo San Bruno. Comment
  UC1537219  Polypogon monspeliensis Gordon H. True Jr. 1937-7-23 808 San Mateo n Salada Beach; N of Salada Beach, base of ocean bluff 30 Comment
  CAS-BOT-BC237588  Polypogon viridis George Oberlander 1950-6-3 1028 San Mateo San Francisco Watershed Reserve. Upper Crystal Spring Lake Comment
  JROH44  Polystichum dudleyi Herbert Dengler 1961-6-25 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. San Francisquito Creek about 100' below tiger lily site Comment
  NY149446  Polystichum dudleyi W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Peninsula: near bridge, Peters Creek, Canta Cruz Mts. Comment
  CAS-BOT-BC76612  Polystichum munitum Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain - Base of Quarry 2 Comment
  CAS-BOT-BC76649  Polystichum munitum Roxana S. Ferris 1921-3-20 2108 San Mateo Pescadero Creek in canyon, 6 mi. from Pescadero Comment
  JROH5510  Potamogeton crispus Alan Grundman 1976-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake Comment
  JROH5844  Potamogeton crispus P. Heiple, A. Lambrecht 2008-8-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  SEINET10501698  Potamogeton filiformis var. macounii Mary Susan Taylor 1978-8-30 Taylor 1875 San Mateo Comment
  CAS-BOT-BC267164  Potamogeton foliosus L. R. A. 1902-9-21 2999 San Mateo Belmont Lake Comment
  UC438  Potamogeton illinoensis J. Burtt Davy Jun 21 1893-Jun 23 1893 1132 San Mateo Pilarcito Lake and Canyon Pilarcito Lake Comment
  UC1191228  Potamogeton pectinatus Herbert L. Mason, Verne Grant 1946-8-28 13091 San Mateo about 3 mi s of Daly City Road (near Highway 5) Comment
  CAS-BOT-BC454004  Potamogeton pectinatus W. R. Dudley 1909-10-31 s.n. San Mateo Santa Cruz Mountain Peninsula. Menlo Park Reservoir Comment
  CDA857  Potamogeton pusillus Wm. Davis 1964-6-17 San Mateo Lake on Purcell property, San Mateo. 0 Comment
  CAS-BOT-BC143408  Potentilla Elizabeth McClintock 1974-11-8 s.n. San Mateo On north side of Guadalupe Parkway Comment
  UC1618019  Potentilla anserina Donald G. Nelson 1939-6-14 617 San Mateo 3 mi s of San Francisco County line (Skyline Boulevard, due e of Mussel Rock on the coast); Skyline Boulevard Comment
  CAS-BOT-BC141927  Potentilla anserina subsp. pacifica A. A. Heller 1907-4-20 8441 San Mateo Near Lake Merced. 60 Comment
  CAS-BOT-BC141932  Potentilla anserina subsp. pacifica David D. Keck 1934-7-7 2969 San Mateo Ano Nuevo Point at Ano Nuevo Creek Comment
  CHSC39829  Potentilla anserina subsp. pacifica Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  CHSC56585  Potentilla anserina subsp. pacifica Steven Triano 1988-5-24 211 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  CAS-BOT-BC141933  Potentilla anserina subsp. pacifica David D. Keck 1933-5-11 2291 San Mateo Half Moon Bay, ca. 2 miles north of town. Comment
  JROH4668  Prosartes hookeri John H. Thomas 1964-4-19 10328 San Mateo Jasper Ridge Biological Preserve, Stanford University. Area below dam in among redwoods near creek. Comment
  JROH4675  Prosartes hookeri John Hunter Thomas 1981-4-5 20258 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC516345  Prosartes hookeri C. F. Leithold 1894-8-13 s.n. San Mateo Devil's Canyon near Black Mt., Santa Cruz Peninsula Comment
  CAS-BOT-BC516346  Prosartes hookeri D. D. Davis 1903-5-2 s.n. San Mateo Near La Honda, Santa Cruz Peninsula Comment
  CAS-BOT-BC516350  Prosartes hookeri George Oberlander 1950-3-11 587 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve Comment
  CAS-BOT-BC516351  Prosartes hookeri M. N. Paulson 1915-4-1 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC517388  Prosartes smithii E. W. Rust 1887-4-27 133 San Mateo Kings Mountain Comment
  UC449935  Prunella vulgaris var. lanceolata Franklin P. Nutting 1893-7-15 San Mateo near Lake San Andreas; near Lake San Andreas Comment
  POM209848  Prunella vulgaris var. lanceolata D. D. Keck 1934-7-7 2935 San Mateo South of the mouth of Tunitas Creek, on slopes overlooking ocean. Comment
  JROH3750  Prunus virginiana var. demissa Toni Corelli 2006-8-9 319 San Mateo Jasper Ridge Biological Preserve, Stanford University; down slope along fire Road E, above deep inlet 109 Comment
  SEINET11917626  Prunus virginiana var. demissa G. C. McMurphy 1906-4-28 16 San Mateo Santa Cruz Penninsula, Carte de Madera Comment
  UCSC007421  Pseudognaphalium Randall Morgan 2010-5-29 5039 San Mateo Rockaway Beach Comment
  CAS-BOT-BC356858  Pseudognaphalium californicum A. D. E. Elmer 1903-6-1 4291 San Mateo Crystal Springs Lake Comment
  JROH757  Pseudognaphalium californicum John H. Thomas 1967-5-10 12851 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC356860  Pseudognaphalium californicum W. R. Dudley 1898-9-15 s.n. San Mateo Santa Cruz Mountain Peninsula. El Corte Madera Comment
  SJSU16004  Pseudognaphalium luteoalbum John Rawlings, Ken Hickman 2016-7-21 1950 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
  UCD166153  Pseudognaphalium luteoalbum Jack Major; M. Forde and S. Bamberg 1962-4-3 737 San Mateo Above Coastways Ranch on Finney Creek. (Exact location unknown. Coordinates estimated by label maker). Comment
  JROH784  Pseudognaphalium luteoalbum John Hunter Thomas 1986-5-6 24001 San Mateo Jasper Ridge Biological Preserve, Stanford University; near bath house Comment
  CAS-BOT-BC357505  Pseudognaphalium ramosissimum Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC357511  Pseudognaphalium ramosissimum Robert S. Cox, Jr. 1946-8-7 s.n. San Mateo Near Pescadero Comment
  CAS-BOT-BC357506  Pseudognaphalium ramosissimum W. R. Dudley 1895-9-15 s.n. San Mateo Santa Cruz Mountain Peninsula. El Corte Madera Comment
  UC1536874  Pseudognaphalium stramineum G. H. True Jr. 1936-6-7 489 San Mateo 2 mi s Pescadero 15 Comment
  UC31976  Pseudognaphalium stramineum F. P. McLean 1874-6-1 San Mateo Pescadero Comment
  CAS-BOT-BC361568  Pseudognaphalium stramineum Lewis S. Rose 1966-8-6 66079 San Mateo San Bruno Mountain, Colma Canyon 121 Comment
  CAS-BOT-BC85901  Pseudotsuga menziesii Lewis S. Rose 1955-9-19 55178 San Mateo Skyline Boulevard, 7 mi. w. of Saratoga 685 Comment
  CAS-BOT-BC85906  Pseudotsuga menziesii A. D. E. Elmer 1903-4-1 4562 San Mateo King's Mountain Comment
  CAS-BOT-BC85914  Pseudotsuga menziesii Miss O. Boring 1897-8-31 s.n. San Mateo Santa Cruz Peninsula, King's Mt. Comment
  RSA15295  Pseudotsuga menziesii C. B. Wolf 1927-4-3 265 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  JROH127  Pseudotsuga menziesii var. menziesii John Hunter Thomas 1981-2-14 20222 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC362019  Psilocarphus tenellus George Oberlander 1950-5-6 909 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  JROH1176  Psilocarphus tenellus John H. Thomas 1955-5-6 5001 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1192  Psilocarphus tenellus John Hunter Thomas 1986-5-6 24006 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1198  Psilocarphus tenellus John Hunter Thomas 1992-5-5 25217 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam and vicinity Comment
  SBBG28043  Psilocarphus tenellus L. S. Rose 1933-5-3 33140 San Mateo Montara Comment
  CAS-BOT-BC362020  Psilocarphus tenellus Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. South Power Line Ridge Comment
  JROH12  Pteridium aquilinum var. pubescens John H. Thomas 1974-10-12 17624 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UCD18553  Puccinellia lemmonii Roman Gankin 1950-7-15 27 San Mateo city of Menlo Park, Hermosa Way, along roadside. 30 Comment
  CDA36281  Puccinellia maritima Michael Perlmutter 2011-6-15 San Mateo South San Francisco; Oyster Point Marina. 0 Comment
  CDA28814  Pyrola picta D. G. Kelch 2009-6-9 9 .405 San Mateo Santa Cruz Mts.; Chert outcrop and adjacent mixed evergreen forest along Skyline Blvd ~1 km W of Skegg s Point. Comment
  CAS-BOT-BC105390  Quercus Ned Cahill 1974-4-23 158 San Mateo near the inteersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  SEINET12031837  Quercus agrifolia F. G. Meyer 1984-1 20335 San Mateo Woodside, Filoli Gardens Comment
  JROH2457  Quercus agrifolia var. agrifolia W. R. Dudley 1898-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2459  Quercus agrifolia var. agrifolia John H. Thomas 1971-4-21 15769 San Mateo Jasper Ridge Biological Preserve, Stanford University; at bridge Comment
  JROH2463  Quercus agrifolia var. agrifolia John H. Thomas 1974-6-30 17461 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2464  Quercus agrifolia var. agrifolia John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC62306  Quercus chrysolepis William R. Dudley 1893-1-1 s.n. San Mateo Near Searsville (Bear G. Road) [Bear Gulch Road - San Mateo Co.?] Comment
  JEPS121557  Quercus chrysolepis Adam C. Schneider with C. Matt Guilliams and Will Freyman 2014-2-1 323 San Mateo Crystal Springs Reservoir, Pulgas Ridge, east of Crystal Springs Reservoir. Comment
  JROH2467  Quercus chrysolepis H. J. Dengler 1973-4-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; gully which drains into Searsville Lake Comment
  UCD45585  Quercus chrysolepis Roman Gankin; W. R. Hildreth 1966-5-17 s.n. San Mateo Elevation 1600 feet, ca. .4 mile northeast of Peak Mountain of greater Montara Mountain, San Mateo County, California. 487 Comment
  CAS-BOT-BC94273  Quercus durata Lewis S. Rose 1970-7-21 70074 San Mateo Emerald Lake, W of Redwood City 243 Comment
  CAS-BOT-BC94284  Quercus durata W. R. Dudley 1909-4-27 s.n. San Mateo between Woodside and Crystal Springs Lake Comment
  POM224196  Quercus durata Annetta Carter 1934-10-13 728 San Mateo Long Branch of Isabel Creek, half mile above jct with Isabel Creek, Mt Hamilton Range. 549 Comment
  SEINET13953377 Image available Quercus durata Lewis S. Rose 1964-1 64068 San Mateo W. of Redwood City; alt. ca. 800 ft. 244 Comment
  JROH2487  Quercus durata var. durata John H. Thomas 1974-6-30 17462 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2489  Quercus durata var. durata John H. Thomas 1975-5-2 17851 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2511  Quercus kelloggii John Hunter Thomas 1988-4-6 24372 San Mateo Jasper Ridge Biological Preserve, Stanford University; along road near dam Comment
  POM270206  Quercus kelloggii Lyman Benson 1932-8-1 4034 San Mateo Stanford University, Santa Cruz mountain range, Corte Madera Creek watershed. 122 Comment
  RSA571671  Quercus kelloggii D. D. Keck 1932-3-6 1395 San Mateo La Honda road above Searsville Lake, Santa Cruz Mountains. Comment
  CAS-BOT-BC62888  Quercus lobata W. R. Dudley 1901-5-4 s.n. San Mateo Coal Mine Canyon Comment
  UC1083146  Quercus lobata Herbert L. Mason 1924-10-8 1109 San Mateo between Stanford University and Jasper Ridge Comment
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Sep 19 2011
  CAS-BOT-BC134780  Quercus wislizeni W. R. Dudley s.n. San Mateo Santa Cruz Peninsula. By road from Pilarcitos Lake to San Andreas Lake Comment
  CAS-BOT-BC134781  Quercus wislizeni W. R. Dudley 1902-11-28 s.n. San Mateo Santa Cruz Peninsula. In front of Murphy Place, Upper Pescadero Creek Comment
  JROH2527  Quercus wislizeni var. frutescens W. R. Dudley 1903-4-10 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; east of Searsville Reservoir 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
  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
  SJSU2273  Ranunculus californicus C. W. Sharsmith 1947-4-13 6754 San Mateo Pescadero Beach near Pwscadero Point 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
  SEINET5718555 Image available Ranunculus californicus Leslie Fenster 1964-1 10 San Mateo Ca. 2.5 miles up Polhemus Road. Comment
  JEPS127797  Ranunculus californicus var. californicus Adam C. Schneider with C. Matt Guilliams 2013-4-7 68 San Mateo Along dirt road running parallel to overhead power transmission lines. Comment
  CAS-BOT-BC378524  Ranunculus californicus var. californicus Margaret A. Barry 1937-5-8 56 San Mateo grassland on Coal Mine Ridge Comment
  CAS-BOT-BC378539  Ranunculus californicus var. californicus John H. Thomas 1971-5-2 15828 San Mateo serpentine fields bordered by chaparral, near intersection of Canada and Edgewater roads, about 4 mi SW of center of Redwood City 305 Comment
  CAS-BOT-BC378550  Ranunculus californicus var. californicus Paul F. Covel 1937-4-15 644 San Mateo Hgwy no. Half Moon Bay Comment
  JROH3488  Ranunculus hebecarpus John Hunter Thomas 1985-5-2 23583 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC83420  Ranunculus lobbii W. R. Dudley 1904-4-10 s.n. San Mateo Near junction of Page Mill Road and Skyline Boulevard. Comment
  JEPS67906  Ranunculus lobbii L. R. Heckard and J. H. Thomas 1972-4-16 2889 San Mateo ca 1 1/2 mi s Pulgas Water Temple (along old Canada road (private), sw of Upper Crystal Springs Reservoir) 121 Comment
  SBBG33475  Ranunculus lobbii A. D. E. Elmer -Apr-1903 4734 San Mateo Alpine School House Comment
  UCR49694  Ranunculus lobbii J. J. McMurphy 1906-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. Pond near Head of Crystal (?) Springs Lakes 85 Comment
  POM269795  Ranunculus pusillus W. R. Dudley 1906-5-8 s.n. San Mateo Road betw woodside and Byrnes store Comment
  CAS-BOT-BC74341  Raphanus sativus Javier Penalosa 1963-2-23 2663 San Mateo San Bruno Mountain. Ravine south of Crocker Avenue. 213 Comment
  SJSU1605  Rhamnus alaternus C. D. Duncan 1955-2-17 San Mateo residence, Menlo Park Comment
  UC1071558  Rhamnus californica T. Tyrrell 1928-9-26 9 San Mateo 2 mi s San Gregorio; Santa Cruz Quad. 91 Comment
  UC592790  Rhamnus californica unknown 1927-12-31 1473 San Mateo 0.5 way up Kings Mt. Comment
  CAS-BOT-BC55883  Rhamnus crocea Walter Knight; Irja Knight 1964-5-4 590 San Mateo unspecified Comment
  CAS-BOT-BC55890  Rhamnus crocea H. A. Dutton 1900-2-1 s.n. San Mateo unspecified Comment
  UC592785  Rhamnus crocea unknown 1928-3-16 1540 San Mateo near Searsville Lake; Jasper Ridge Comment
  CAS-BOT-BC437977  Ribes Alice Eastwood 1922-5-27 11324 San Mateo La Honda Comment
  POM141970  Ribes californicum A. D. E. Elmer 1903-03 4683 San Mateo Portola Comment
  UC11496  Ribes californicum Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  UC11498  Ribes californicum J. Burtt Davy 1895-4-21 1058 San Mateo Pilarcitos Creek Comment
  CAS-BOT-BC92997  Ribes californicum var. californicum Lewis S. Rose 1933-6-9 33226 San Mateo Belmont. Comment
  JROH2637  Ribes californicum var. californicum John H. Thomas 1959-2-23 7518 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2639  Ribes californicum var. californicum John H. Thomas 1964-4-7 10302 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near edge of Searsville Lake. Comment
  JROH2643  Ribes californicum var. californicum D. E. Breedlove 1971-5-31 19359 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH2649  Ribes californicum var. californicum John Hunter Thomas 1983-2-21 21280 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Escobar Gate Comment
  RSA0003752  Ribes deductum C. F. Baker 1902-4-4 441 San Mateo Crystal Springs Lake Comment
  SD121787  Ribes divaricatum Lewis S. Rose 1965-3-16 65008 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC173082  Ribes divaricatum var. pubiflorum Lewis S. Rose 1965-3-16 65008 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC173083  Ribes divaricatum var. pubiflorum Walter Knight; Irja Knight 1964-5-4 s.n. San Mateo Colma Canyon, south ridge Comment
  SBBG33963  Ribes divaricatum var. pubiflorum L. S. Rose 1965-3-16 65008 San Mateo Searsville Lake 121 Comment
  CAS-BOT-BC173475  Ribes malvaceum W. R. Dudley 1893-1-1 s.n. San Mateo Near Belmont Comment
  CAS-BOT-BC173476  Ribes malvaceum W. R. Dudley 1893-1-1 s.n. San Mateo Near Belmont Comment
  CAS-BOT-BC173480  Ribes malvaceum G. Edelbrock 1975-2-8 002 San Mateo Eastern exposure overlooking Crystal Springs Reservoir along fire road; S.F. Watershed 152 Comment
  UC202806  Ribes malvaceum A. D. E. Elmer March 1903 4750 San Mateo Portola Comment
  CAS-BOT-BC173469  Ribes malvaceum Walter Knight 1964-9-14 827 San Mateo Near summit Peak Mt. Comment
  CAS-BOT-BC212817  Ribes menziesii A. D. E. Elmer 1903-4-1 4496 San Mateo Portola Comment
  CAS-BOT-BC212828  Ribes menziesii Peter H. Raven 1952-4-6 3984 San Mateo 1 mile s. of Sharp Park Comment
  CAS-BOT-BC212831  Ribes menziesii George Oberlander 1950-4-23 822 San Mateo Pilarcitos Canyon Comment
  UC1177377  Ribes menziesii Peter H. Raven 1950-2-25 1377 San Mateo canyon above Brisbane; San Bruno Montains 182 Comment
  UC202760  Ribes menziesii A. D. E. Elmer June, 1903 4787 San Mateo Lake San Andreas Comment
  CAS-BOT-BC212814  Ribes menziesii William Russel Dudley 1894-4-1 s.n. San Mateo Above St. Dennis Church, Searsville Comment
  CAS-BOT-BC144631  Ribes sanguineum var. glutinosum Lewis S. Rose 1931-1-25 s.n. San Mateo Belmont Comment
  JROH2678  Ribes sanguineum var. glutinosum John Hunter Thomas 1977-6-16 18792 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along raised causeway. Comment
  JROH2685  Ribes sanguineum var. glutinosum John Hunter Thomas 1985-4-25 23556 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway. Comment
  RSA0019100  Ribes sanguineum var. glutinosum D. D. Keck 1932-2-14 1370 San Mateo Near La Honda, Santa Cruz Mountains (3 miles north). 366 Comment
  JROH1210  Rigiopappus leptocladus John Hunter Thomas 1992-4-29 25169 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM53912  Rigiopappus leptocladus C. F. Baker 1902-5-4 754 San Mateo Woodside Comment
  RSA119750  Romanzoffia californica W. R. Dudley 1894-3-26 s.n. San Mateo Between San Mateo and Crystal Springs Reservoir; Santa Cruz Mt Peninsula. Comment
  CAS-BOT-BC74653  Rorippa curvisiliqua George Oberlander 1949-7-30 315 San Mateo In bottom of San Francisquito Creek, about 60 m. above Pope Street bridge. Comment
  JROH1580  Rorippa palustris subsp. palustris John Hunter Thomas 1977-6-16 18784 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1586  Rorippa palustris subsp. palustris John Hunter Thomas 1981-10-25 20764 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC147622  Rosa californica Walter Knight; Irja Knight 1964-5-30 618 San Mateo Colma Canyon Comment
  CAS-BOT-BC147623  Rosa californica Alice B. Wright 1919-8-1 s.n. San Mateo Granada Comment
  CAS-BOT-BC147634  Rosa californica J. I. McMurphy 1906-4-30 64 San Mateo Woodside, Santa Cruz Mts. Comment
  JROH3756  Rosa californica Toni Corelli 2007-8-29 335 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Trail 1 just before first redwood grove, above San Francisquito Creek 80 Comment
  UC725850  Rosa californica A. A. Heller 1907-5-28 8582 San Mateo back of San Mateo (on the Half Moon Bay road) Comment
  CAS-BOT-BC146800  Rosa multiflora Peter Rubtzoff; Elizabeth McClintock; Paul Reeberg 1988-7-28 s.n. San Mateo unspecified Comment
  CAS-BOT-BC152829  Rubus parviflorus W. R. Dudley 1894-12-13 s.n. San Mateo La Honda Road - Santa Cruz Peninsula Comment
  CAS-BOT-BC152834  Rubus parviflorus A. D. E. Elmer 1903-6-1 4294 San Mateo Alpine School House Comment
  LA37943  Rubus parviflorus Ira L. Wiggins; 1939-8-12 9296 -A San Mateo Along banks of Gazos Cr. about 5 mi. inland from coast Comment
  POM222901  Rubus parviflorus var. velutinus S. S. Berry 1909-4-2 s.n. San Mateo Bear Creek Canyon Grade 244 Comment
  RSA51270  Rubus parviflorus var. velutinus Peter H. Raven 1950-4-30 51270 San Mateo Montara Mtns. Ca 1/2 mile N of Montara. 91 Comment
  UCR51532  Rubus spectabilis var. franciscanus R. Ascanio 1988-4-17 s.n. San Mateo E on Gazo Creek Road off Hwy 1, c. 2 mi. north of Ano Nuevo State Reserve 85 Comment
  CAS-BOT-BC157087  Rubus ursinus James McMurphy 1902-3-22 s.n. San Mateo Above Portola Comment
  CAS-BOT-BC157096  Rubus ursinus George Oberlander 1949-4-9 25 San Mateo Pilarcitos Canyon Comment
  CAS-BOT-BC157100  Rubus ursinus Peter H. Raven 1950-4-30 1972 San Mateo Above streets of Montara 15 Comment
  CAS-BOT-BC157101  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6050 San Mateo Montara Mt. above Pt. San Pedro Comment
  JEPS25748  Rubus ursinus L. R. Heckard with Rimo Bacigalupi 1961-5-14 1233 San Mateo Canyon of Pilarcitos Creek about 0.5 mi below Stone Dam Reservoir; Canyon of Pilarcitos Creek below Stone Dam Reservoir 182 Comment
  JEPS25749  Rubus ursinus L. R. Heckard with Rimo Bacigalupi 1961-5-14 1234 San Mateo Canyon of Pilarcitos Creek about 0.5 mi below Stone Dam Reservoir; Canyon of Pilarcitos Creek below Stone Dam Reservoir 182 Comment
  UC136500  Rubus ursinus C. F. Baker 1902-1-15 246 San Mateo West side King's Mountain Comment
  UC748878  Rubus ursinus Alice Eastwood, John Thomas Howell 1938-6-26 6055 San Mateo near Pescadero; near Pescadero Comment
  CAS-BOT-BC157095  Rubus ursinus W. R. Dudley 1897-1-1 s.n. San Mateo Near junction of forks of Butano Cr. Comment
  SJSU22  Rubus ursinus C. D. Duncan 1925-5-23 San Mateo S end Portola Valley Comment
  UCSB18180  Rubus ursinus Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough, California 91 Comment
  RSA264999  Rumex acetosella I. L. Wiggins 1928-3-25 2945 San Mateo Moss Beach Comment
  UC1084377  Rumex acetosella G. Thomas Robbins 1937-4-11 74 San Mateo just s San Francisco (along Skyline Boulevard) Comment
  CAS-BOT-BC422094  Rumex acetosella George Oberlander 1949-4-9 59 San Mateo San Francisco Watershed Reserve. Cahill Ridge Comment
  SD1201  Rumex acetosella U. S. Grant IV 1925-6-5 San Mateo San Mateo Comment
  UC1101213  Rumex maritimus Malcolm A. Nobs and S. Galen Smith 1949-8-26 1590 San Mateo mouth of Pescadero Creek Pescadero Creek Comment
  CAS-BOT-BC433827  Rumex pulcher Margaret A. Barry 1938-6-22 s.n. San Mateo Slope on Coal Mine Ridge Comment
  JROH3314  Rumex salicifolius Toni Corelli 2006-8-9 320 San Mateo Jasper Ridge Biological Preserve, Stanford University; road E near intersection of Trail 14 118 Comment
  RSA788844  Rumex salicifolius var. denticulatus Peter Rubtzoff 1980-8-4 9564 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC182771  Rumex salicifolius var. transitorius Peter Rubtzoff 1979-7-26 9299 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  CAS-BOT-BC454176  Ruppia maritima H. L. Mason 1921-6-2 s.n. San Mateo Pebble Beach near Pescadero Comment
  CAS-BOT-BC103337  Salix bonplandiana W. R. Dudley 1900-3-18 s.n. San Mateo South of San Andreas Lake Comment
  CAS-BOT-BC125367  Salix lasiandra var. lasiandra Peter H. Raven 1964-9-13 19671 San Mateo Half Moon Bay Comment
  CAS-BOT-BC107128  Salix lasiolepis A. D. E. Elmer 1903-3-1 4875 San Mateo Searsville Lake Comment
  CAS-BOT-BC107130  Salix lasiolepis C. R. Ball; G. W. Hendry 1931-2-22 14 San Mateo San Gregorio, near sea level - in arroyo near San Gregorio Creek, 100 m. from ocean Comment
  JROH3860  Salix lasiolepis W. R. Dudley 1903-4-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Wild Plum Canyon, Searsville Ridge Comment
  JROH3866  Salix lasiolepis Carol Zabel 1989-2-20 3 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway bridge, Trail 13. 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
  UC1618081  Salix lasiolepis Donald G. Nelson 1939-6-14 618 San Mateo 3 mi. s of San Francisco Co, line (Skyline Blvd. due e. of Mussel Rock on coast, large permanent Sag Pond) Comment
  UCD164611  Salix lasiolepis Peter Rubtzoff 1975-10-24 8433 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  RSA788842  Salix lasiolepis var. bigelovii Peter Rubtzoff 1975-10-24 8433 San Mateo Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC124484  Salix lasiolepis var. lasiolepis W. R. Dudley 1894-7-11 s.n. San Mateo San Francisquito Cr. near Cedro Cottage, Stanford University Comment
  CAS-BOT-BC124487  Salix lasiolepis var. lasiolepis George Oberlander 1950-3-18 949 San Mateo San Andreas Lake Comment
  POM362921  Salix scouleriana L. S. Rose 1934-2-10 34025 San Mateo Skyline Blvd. 4 miles S Kings Mtn. Comment
  CAS-BOT-BC126489  Salix sitchensis A. D. E. Elmer 1903-3-1 4874 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-BC126513  Salix sitchensis W. R. Dudley 1903-6-6 s.n. San Mateo Near mouth of Peters Creek below Iverson's Comment
  CAS-BOT-BC126521  Salix sitchensis W. R. Dudley 1897-4-19 s.n. San Mateo Bank of Pescadero Creek below Peters Creek Comment
  UC75015  Salix sitchensis unknown 1902-3 San Mateo King's Mt. 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
  RSA201244  Salsola soda W. Anderson 1968-8-16 s.n. San Mateo Edge of salt marsh just above high tide line, west end of Dumbarton Bridge Comment
  SJSU6456  Salsola soda H. T. Harvey 1971-7-15 570 San Mateo Faber Tract, E Palo Alto Comment
  UCD99304  Salsola soda T. C. Fuller 1968-9-25 17640 San Mateo w. end of Dumbarton Bridge, Menlo Park. Comment
  RSA15302  Salvia columbariae Carl B. Wolf 1927-4-3 s.n. San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  CAS-BOT-BC246022  Sambucus nigra subsp. caerulea Margaret A. Barry 1937-6-24 188 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC246023  Sambucus nigra subsp. caerulea George Oberlander 1950-4-2 586 San Mateo Sawyer Ridge, San Francisco Watershed Reserve Comment
  JROH1672  Sambucus nigra subsp. caerulea John H. Thomas 1978-5-16 s.n. 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-BC236452  Sambucus racemosa subsp. racemosa Nancy Kittle 1981-5-15 067 San Mateo 1 mile west of junction of Highway 280 with Sandhill Road 50 Comment
  CAS-BOT-BC235074  Sambucus racemosa var. racemosa W. R. Dudley 1893-3-24 s.n. San Mateo Santa Cruz Mountain Peninsula. Pescadero Creek Comment
  CDA33763  Sanicula arctopoides D. G. Kelch 2011-3-13 11 .05 San Mateo Pacifica. Along sea bluffs Comment
  RSA187473  Sanicula arctopoides John H. Thomas 1964-4-30 10347 San Mateo San Bruno Mtn in northern part. Northern Coastal Scrub of Munz and Keck 305 Comment
  UC1598748  Sanicula arctopoides Ivar Tidestrom 1894-3-22 San Mateo Comment
  JROH319  Sanicula bipinnata Ann Lambrecht 2003-4-9 5 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 11, W edge of trail, around curve SW of Collinsia heterophylla site Comment
  CAS-BOT-BC223322  Sanicula bipinnatifida Margaret A. Barry 1938-3-6 230 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC223323  Sanicula bipinnatifida A. D. E. Elmer 1903-4-1 4817 San Mateo Lake San Andreas Comment
  UC1084385  Sanicula bipinnatifida G. Thomas Robbins 1937-4-11 91 San Mateo near Spring Valley Lakes (along road to Woodside) Comment
  JROH331  Sanicula crassicaulis John H. Thomas 1967-5-12 12877 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC166810  Sanicula crassicaulis Peter Rubtzoff 1976-6-30 8712 San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  CAS-BOT-BC283132  Schedonorus arundinaceus J. H. Thomas 1963-8-4 10235 San Mateo About 2.5 miles inland from San Gregorio along the highway Comment
  CAS-BOT-BC283133  Schedonorus arundinaceus Elizabeth McClintock; Paul Reeberg 1988-4-26 s.n. San Mateo On the south side of Crocker Industrial Park, San Bruno Mountains 22 Comment
  RSA140840  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. alt. below 25 feet. 8 Comment
  POM185335  Schoenoplectus pungens E. B. Copeland 1903-6-15 3336 San Mateo Montara Point. Comment
  UC1154039  Scirpus cernuus J. Clausen 1939-7-1 1745 San Mateo Ano Nuevo Point Ano Nuevo Point (in depressions in stabilized dunes) Comment
  UC840693  Scirpus cernuus Ira L. Wiggins and Roxana S. Ferris 1939-8-2 9290 San Mateo Ano Nuevo Point Comment
  UC841022  Scirpus maritimus Lewis S. Rose 1935-8-13 35565 San Mateo Salada 3 Comment
  CDA39140  Scirpus microcarpus I. J. Campbell 1959-4-16 s.n. San Mateo Quadro Ranch, Pescadero. 0 Comment
  CAS-BOT-BC519008  Scoliopus bigelovii Harold Block 1926-1-24 s. n. San Mateo Kings Mountain Comment
  JROH4123  Scrophularia californica John H. Thomas 1962-7-15 9917 San Mateo Jasper Ridge Biological Preserve, Stanford University; near northern end of ridge Comment
  JROH4124  Scrophularia californica Richard L. Garber 1971-5-18 19 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4129  Scrophularia californica John Hunter Thomas 1983-6-29 22696 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR141418  Scrophularia californica June Latting 1975-6-8 s.n. San Mateo Central Coast, slough across from Pescadero dump (on Bean Hollow Rd.), west of Pescadero 9 Comment
  SEINET12287674  Scrophularia californica Unknown 1933-1 104 San Mateo Mud Lake Comment
  UC884214  Scutellaria tuberosa Lewis S. Rose 1933-5-21 33179 San Mateo Belmont Comment
  CAS-BOT-BC59053  Sedum spathulifolium John F. Emmel 1970-5-2 269 San Mateo South end of Milagra ridge, along and north of Sharp Park Road. 175 Comment
  CAS-BOT-BC363392  Senecio aronicoides Alice Eastwood 1914-3-12 3752 San Mateo San Bruno Hills Comment
  CAS-BOT-BC363393  Senecio aronicoides A. D. E. Elmer 1903-5-1 4508 San Mateo San Bruno Hills Comment
  UC36172  Senecio aronicoides J. Burtt Davy 1895-4-20 1069 San Mateo Crystal Springs Lake Comment
  JROH1216  Senecio aronicoides D. D. Davis 1903-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville vicinity Comment
  RSA0012757  Senecio aronicoides Lyman Benson 1930-5-26 2129 -A San Mateo Stanford University, Lake Searsville. 152 Comment
  RSA152140  Senecio glomeratus John H. Thomas 1961-5-7 9275 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  JEPS37223  Senecio hydrophilus W. L. Jepson 1910-8-18 4162 San Mateo Butano Creek Comment
  CAS-BOT-BC353468  Senecio jacobaea Peter Rubtzoff 1975-10-24 8434 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction. Uppermost part of East Fork Colma Creek, at the northwest corner of Fog Forest, San Bruno Mountains. Comment
  RSA132965  Senecio mikanioides John H. Thomas 1958-12-18 7509 San Mateo Along Skyline Blvd. just west of San Bruno. Comment
  CAS-BOT-BC364238  Senecio sylvaticus Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain. East facing slope below parking lot 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-BC80289  Sequoia sempervirens David D. Keck 1932-2-14 1368 San Mateo La Honda road, east slope of Coast Range above Searsville Lake 304 Comment
  CAS-BOT-BC80298  Sequoia sempervirens J. H. Thomas 1949-10-16 1141 San Mateo Along La Honda Creek, about 0.7 miles north of La Honda Comment
  UCR19335  Sequoia sempervirens Bernice Bowers 1977-4-4 s.n. San Mateo San Francisco Bay Area, Kings Mtn. Road, 1 mi south of Huddart County Park, 2 mi north of Woodside 549 Comment
  SEINET5334860  Sequoia sempervirens R. L. Oliver 1976-4-18 s.n. San Mateo La Honda. San Mateo Memorial Park. Comment
  SEINET6841677  Sequoia sempervirens R. A. Evers, Clara V. Evers 1975-8-24 115029 San Mateo Trailer Villa, Redwood City. Comment
  CDA2435  Setaria parviflora I. J. Campbell 1958-8-12 1015 San Mateo Redwood City. 0 Comment
  CDA2436  Setaria parviflora E. L. Labadie 1958-7-8 833 -58 San Mateo Redwood City. 0 Comment
  JROH3829  Sherardia arvensis John H. Thomas 1957-4-16 6661 San Mateo Jasper Ridge Biological Preserve, Stanford University. Open serpentine area on top of ridge and adjacent slopes Comment
  CDA6642  Sherardia arvensis Wm. Davis 1958-6-5 San Mateo San Bruno. 0 Comment
  SEINET3561109 Image available Sidalcea diploscypha Lewis S. Rose 1933-5-17 33167 San Mateo Redwood City. Comment
  RSA432966  Sidalcea hickmanii subsp. hickmanii H. F. Copeland 1928-2-26 s.n. San Mateo Montara Comment
  CDA33789  Sidalcea malviflora D. G. Kelch 2011-3-13 11 .049 San Mateo Pacifica. Along sea bluffs Comment
  JEPS127779  Sidalcea malviflora subsp. laciniata Adam C. Schneider with C. Matt Guilliams 2013-3-9 32 San Mateo Comment
  JROH2972  Sidalcea malviflora subsp. malviflora John Hunter Thomas 1981-4-21 20465 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC389902  Silene Alice Eastwood 1912-6-10 328 San Mateo Millbrae Comment
  CAS-BOT-BC175277  Silene W. R. Dudley 1900-3-17 s.n. San Mateo By grade, south slope, near top Montara Mts. Comment
  UC136248  Silene californica C. F. Baker 1903-6-30 3352 San Mateo Crystal Springs Comment
  CAS-BOT-BC384433  Silene coronaria Alexander Locke 1963-5-19 32 San Mateo 714 Alameda de los Pulgas, Belmont Comment
  POM286436  Silene gallica Lyman Benson 1930-5-3 2118 San Mateo Lake Searsville, Stanford Univ. San Francisco Bay watershed, Santa Cruz mtn range. 183 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-BC386861  Silene gallica G. Edelbrock 1975-3-21 022 San Mateo On ridge ar end of crocker Street; San bruno Mountain 152 Comment
  CAS-BOT-BC389194  Silene laciniata subsp. californica A. D. E. Elmer 1903-6-1 4446 San Mateo Crystal Springs Lake 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-BC389896  Silene verecunda Dean Wm. Taylor 1988-4-8 9505 San Mateo Santa Cruz Mountains. San Bruno Mountain, summit of mountain, near the parking lot at the eastern extent of public road access Comment
  CAS-BOT-BC75349  Sisymbrium officinale John H. Thomas 1969-4-24 14918 San Mateo Near Canada College, Redwood City, near Farm Hill Drive. Comment
  JROH4442  Sisyrinchium bellum John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR101612  Sisyrinchium bellum George K. Helmkamp, E. A. Helmkamp 1998-5-16 3746 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  RSA647584  Sisyrinchium bellum J. Doty 1969-3-26 607 San Mateo San Gregorio Beach State Park. 15 Comment
Read comments
Jan 26 2017
  SEINET5571633  Sisyrinchium bellum H. S. Gentry 1931-1 6 San Mateo Collected 1.5 miles west of San Mateo, Half-moon Bay road. Comment
  SJSU15344  Sisyrinchium bellum J. A. Nikkel 1985-4-3 19 San Mateo east side of Highway 1, a 1/2 mile south of Pigeon Point; Comment
  POM196491  Sisyrinchium californicum Roxana S. Ferris 1920-4-26 1973 San Mateo Near mouth of Arroyo de los Frijoles 30 Comment
  IRVC9075  Smilacina stellata var. sessilifolia P. W. Rundel 1962-4-12 1017 San Mateo 1 mile East of Skyline Hwy on La Honda Rd. Comment
  JEPS101208  Solanum americanum Dean W. Taylor 1989-8-1 10409 San Mateo Montara Mountain, saddle between North Peak and Montara Knob 518 Comment
  SEINET12274723  Solanum douglasii M. T. Doutt 1931-1 s.n. San Mateo Ano Nuevo Pt Comment
  UCD126847  Solanum furcatum John H. Thomas 1961-5-7 9302 San Mateo San Bruno Mountain in northern part of county. 304 Comment
  CAS-BOT-BC35922  Solanum umbelliferum Fred Hemphill 1973-4-15 673 San Mateo San Carlos. Chaparral area N of Malabar Rd. and Melendy Dr. 207 Comment
  JROH4186  Solanum umbelliferum John H. Thomas 1958-2-15 6988 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC156868  Solanum umbelliferum W. R. Dudley 1896-2-16 s.n. San Mateo Glen Gloaming near Peters Cr., Santa Cruz Mts. Comment
  CAS-BOT-BC157039  Solanum umbelliferum S. Kawahara 1968-7-29 464 San Mateo Side road off Old Stage Road at south bank of Pomponio Creek 36 Comment
  JROH4195  Solanum umbelliferum John Hunter Thomas 1989-5-11 24732 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near bridge on causeway, bridge separates two parts of lake Comment
  NY820593  Solanum umbelliferum D. Demarée 1932-4-9 8981 San Mateo Los Troncos Woods Comment
  POM280568  Solanum umbelliferum Arthur L. Cohen 1935-4-21 605 San Mateo Jasper Ridge. Stanford U. Santa Cruz Mt Range. Comment
  UCR256294  Solidago canadensis subsp. elongata Peter Rubtzoff 1978-9-16 9271 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  CAS-BOT-BC365535  Solidago elongata Walter Knight 1964-9-14 s.n. San Mateo Peak Mountain - Montara Range Comment
  CAS-BOT-BC365536  Solidago elongata Lewis S. Rose 1931-9-19 s.n. San Mateo Kings Mt. Comment
  JEPS32447  Solidago elongata W. L. Jepson 1910-8-18 4163 San Mateo Butano Cr Comment
  LA203952  Solidago elongata Lewis B. Rose; 1931-9-19 San Mateo Kings Mt Comment
  LA203968  Solidago velutina subsp. californica U. S. Grant; 1926-9-6 IV San Mateo Kuiqs Mountain 609 Comment
  JEPS27366  Soliva sessilis Rimo Bacigalupi with J. Roof and L. Heckard 1961-4-24 7626 San Mateo Guadalupe Valley side of the summit San Bruno Mountain (on lateral ridge below and se end of paved ridge-top road just e of KRON television tower and station); Guadalupe Valley side of the summit San Bruno Mountain 304 Comment
  CAS-BOT-BC365938  Soliva sessilis R. S. Ferris 1925-5-1 4157 San Mateo Selah Chamberlain Residence, Woodside Comment
  JROH1238  Soliva sessilis John H. Thomas 1955-5-6 5000 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1248  Soliva sessilis John Hunter Thomas 1984-4-12 23292 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA176778  Sonchus oleraceus John H. Thomas 1963-5-20 10112 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC374708  Sonchus oleraceus Javier Penalosa 1963-3-30 2724 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 91 Comment
  JROH1261  Sonchus oleraceus John H. Thomas 1970-7-5 15656 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA181336  Sorghum bicolor subsp. drummondii John H. Thomas 1965-9-8 11444 San Mateo Near intersection of Bayshore & University Ave., East Palo Alto Comment
  UCD92988  Spartina foliosa Malcolm A. Nobs; S. Galen Smith 1949-8-27 1622 San Mateo E of Redwood City. Comment
  RSA65493  Spergula arvensis Mabel Peirson 1926-2-24 6520 San Mateo Moss Beach. Comment
  CDA24131  Spergularia macrotheca T. C. Fuller 1967-6-13 15939 San Mateo Half Moon Bay Harbor, north edge of the town of Half Moon Bay. 0 Comment
  UCD169488  Spergularia macrotheca Dr. E. B. Copeland 1903-6-5 3317 San Mateo Montara Point. Comment
  CAS-BOT-BC390453  Spergularia macrotheca var. macrotheca J. H. Thomas 1954-5-28 4245 San Mateo Guadalupe Valley, about 2 miles south of San Francisco - San Mateo County line 30 Comment
  CAS-BOT-BC390467  Spergularia macrotheca var. macrotheca Elsie M. Zeile 1921-7-30 s.n. San Mateo Salada Comment
  CAS-BOT-BC390452  Spergularia macrotheca var. macrotheca Philip C. Wheeler 1965-5-8 s.n. San Mateo San Bruno Mountain. Sierra Point Comment
  CAS-BOT-BC390916  Spergularia marina John Thomas Howell 1924-9-28 666 San Mateo At the Leslie Salt Refinery 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
  RSA0098734  Spergularia villosa Lyman Benson 1930-6-14 2154 San Mateo San Gregorio. 30 Comment
  JROH2905  Stachys bullata John Hunter Thomas 1980-11-27 20177 San Mateo Jasper Ridge Biological Preserve, Stanford University; along causeway Comment
  UC100826  Stachys bullata J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  UC25937  Stachys bullata J. Burtt Davy 1895-4-20 1036 San Mateo Lake San Andreas Comment
  POM283275  Stachys bullata Lyman Benson 1928-12-15 828 San Mateo La Honda, Santa Cruz Mountain Range, North slope. 213 Comment
  RSA116680  Stachys bullata Josephine Randall 1907-4-27 186 San Mateo Kings Mt. Road. Comment
  SBBG55038  Stachys bullata C. Taylor 1971-7-11 209 San Mateo Skyline Blvd near La Honda Rd, Santa Cruz Mtns 445 Comment
  SEINET12343830  Stachys bullata L. S. Rose 1932-5-3 32215 San Mateo San Bruno 183 Comment
  RSA0109086  Stachys pycnantha W. R. Dudley 1902-9-21 s.n. San Mateo Near Crystal Springs Lake. Comment
  SEINET13948127 Image available Stachys rigida Lewis S. Rose 1950-1 50139 San Mateo Emerald Lake region, alt ca 800 ft. hills W of Redwood City 244 Comment
  JEPS121450  Stachys rigida subsp. quercetorum Adam C. Schneider 2013-5-17 125 San Mateo Crystal Springs Reservoir Comment
  RSA446690  Stachys rigida subsp. quercetorum Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mts. overlooking Daly City near San Francisco. Comment
  UCR279846  Stachys rigida subsp. quercetorum Peter Rubtzoff 1975-10-11 8425 San Mateo San Francisco Bay Region, San Bruno Mountains. 'Saddle'area on north side of Guadalupe Canyon Parkway, west of Radio Road junction 220 Comment
  RSA218025  Stachys rigida subsp. quercetorum Elizabeth McClintock, Carlyn Halde 1963-6-23 s.n. San Mateo East-facing slope below parking lot, San Bruno Mountain Comment
  JROH2891  Stachys rigida var. quercetorum Herbert Dengler 1961-4-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; by S.F. Cr. near E corner of preserve Comment
  JROH1273  Stebbinsoseris heterocarpa John Rawlings 2007-5-30 1035 San Mateo Jasper Ridge Biological Preserve, Stanford University; uphill from Escobar horse trail, 126 Comment
  JROH1791  Stellaria nitens John Hunter Thomas 1988-5-16 24462 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA223602  Stephanomeria virgata Elizabeth McClintock, Walter Knight, I. Knight 1967-8-1 s.n. San Mateo S side of Ridge Road, about 200 yards S of Parking Lot. San Bruno Mtns. Comment
  JROH5388  Stipa miliacea var. miliacea John Hunter Thomas 1989-5-30 24757 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5576368  Streptanthus cordatus H. S. Gentry 1931-1 8 San Mateo Collected outskirts of San Bruno on west side. Comment
  POM149336  Stylomecon heterophylla C. F. Baker 1902-5-4 745 San Mateo Woodside. Comment
  CAS-BOT-BC271645  Symphoricarpos albus var. laevigatus Margaret A. Barry 1937-5-23 152 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC271646  Symphoricarpos albus var. laevigatus Josephine D. Randall 1907-7-23 28 San Mateo Near Crystal Springs Lake, Santa Cruz Peninsula Comment
  CAS-BOT-BC271650  Symphoricarpos albus var. laevigatus Elizabeth McClintock 1964-2-16 s.n. San Mateo Lowe part of Radio Road, San Bruno Mountain Comment
  JEPS85568  Symphoricarpos albus var. laevigatus Craig Dremann 1986-8-30 326 San Mateo near San Gregorio (on Stage road, 500 ft s of intersection of Seaside School road, next to road) Comment
  RSA14209  Symphoricarpos albus var. laevigatus C. B. Wolf 1926-10-19 193 San Mateo Roadside slope, west of 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-BC237059  Symphoricarpos mollis Ned Cahill 1974-5-13 254 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
  SEINET5579326  Symphoricarpos mollis H. S. Gentry 1931-1 78 San Mateo 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC99056  Symphyotrichum chilense David D. Keck 1931-10-5 1282 San Mateo 1 mile north of Salada Beach 91 Comment
  CAS-BOT-BC99088  Symphyotrichum chilense Josephine D. Randall 1907-7-23 54 San Mateo Near Crystal Springs Lake - Santa Cruz Peninsula Comment
  CAS-BOT-BC99100  Symphyotrichum chilense Lewis S. Rose 1966-8-15 66083 San Mateo Pillar Point 1 Comment
  CAS-BOT-BC99051  Symphyotrichum chilense Lewis S. Rose 1955-8-29 54112 San Mateo Tunitas 30 Comment
  CAS-BOT-BC99060  Symphyotrichum chilense Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain - West Power Line Ridge at Ridge Road Comment
  CAS-BOT-BC99094  Symphyotrichum chilense W. R. Dudley 1899-11-29 s.n. San Mateo Near Alpine School House, Black Mt. - Santa Cruz Peninsula Comment
  CAS-BOT-BC99389  Symphyotrichum subspicatum E. H. Quayle 1920-5-18 242 San Mateo Half Moon Bay, Santa Cruz Mountain Peninsula Comment
  JROH1279  Tanacetum parthenium Carol Zabel 1989-8-11 30 San Mateo Jasper Ridge Biological Preserve, Stanford University; San Francisquito Creek bank upstream 20 feet from low-flow crossing on Road C Comment
  CAS-BOT-BC376869  Taraxacum erythrospermum Elizabeth McClintock 1965-4-25 s.n. San Mateo San Bruno Mountain. Summit at Power Line Ridge Comment
  JROH367  Tauschia hartwegii H. J. Dengler 1972-4-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; on slope about 100 feet above the east margin of Searsville Lake, and 300 feet south of the dam Comment
  POM132670  Tauschia kelloggii A. D. E. Elmer 1903-04 4928 San Mateo Crystal Springs Lake. Comment
  RSA119855  Tauschia kelloggii W. R. Dudley 1892-5-14 s.n. San Mateo Pass, near head of Calera Valley. Comment
  CAS-BOT-BC447467  Tellima grandiflora Carl B. Wolf 1929-5-10 3710 San Mateo santa Cruz Mts La Honda 304 Comment
  CDA25447  Tellima grandiflora T. C. Fuller 1960-4-2 San Mateo Alpine Road, 3.4 miles southeast of La Honda. 0 Comment
  CAS-BOT-BC438267  Tetragonia tetragonoides Walter Knight; Irja Knight 1965-4-24 1081 San Mateo San Bruno Mountain. Near dumps at west end of mt. Comment
  CAS-BOT-BC399848  Thalictrum polycarpum Peter Rubtzoff 1953-5-14 1350 A San Mateo Pilarcitos Creek Canyon 1 to 2 miles downstream from Pilarcitos Lake 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-BC66674  Thysanocarpus curvipes John H. Thomas 1977-4-2 18507 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto. Comment
  CAS-BOT-BC66655  Thysanocarpus curvipes H. J. Dengler 1972-4-30 s.n. San Mateo Unspecified. Comment
  CAS-BOT-BC66679  Thysanocarpus curvipes W. R. Dudley 1894-4-11 s.n. San Mateo Santa Cruz Peninsula. Slope near Menlo Park Reservoir. Comment
  CAS-BOT-BC66683  Thysanocarpus curvipes Carl B. Wolf 1929-5-17 3716 San Mateo 1 mile west of Skyline Boulevard on Alpine Road. 304 Comment
  JROH1595  Thysanocarpus curvipes subsp. elegans John Hunter Thomas 1981-4-21 20455 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH382  Torilis nodosa John H. Thomas 1977-5-14 18611 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC23958  Torilis nodosa Mary Katherine Wicksten 1971-6-17 62 San Mateo Huddart Park, above Redwood Shelter 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
  CAS-BOT-BC377135  Tragopogon porrifolius J. H. Thomas 1958-10-28 7493 San Mateo Near intersection of Bayshore highway and Main Street. Redwood City Comment
  CAS-BOT-BC377136  Tragopogon porrifolius W. R. Dudley 1897-5-12 s.n. San Mateo Santa Cruz Peninsula. On road from Bay to Menlo Park Comment
  JROH3392  Trientalis latifolia John H. Thomas 1974-5-3 17248 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  RSA116716  Trientalis latifolia Josephine Randall 1908-5-20 s.n. San Mateo Iversons near Peter Creek Comment
  RSA116747  Trientalis latifolia Josephine Randall 1907-4-27 s.n. San Mateo KingsM Mt. Comment
  SEINET11974143  Trientalis latifolia Unknown 1932-1 8974 San Mateo Los Trancos Woods Comment
  UCSC010359  Trifolium Dylan M. Neubauer 2016-5-19 690 San Mateo (SnFrB) Santa Cruz Mountains, headwaters of Waterman Creek, w of Hwy 9 423 Comment
  UCSC010361  Trifolium Dylan M. Neubauer 2016-5-19 690 San Mateo (SnFrB) Santa Cruz Mountains, headwaters of Waterman Creek, w of Hwy 9 423 Comment
  JROH2238  Trifolium barbigerum John H. Thomas 1961-4-29 9176 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC311113  Trifolium barbigerum A. D. E. Elmer Apr, 1903 4859 San Mateo Lake San Andreas Comment
  UCD147019  Trifolium barbigerum Robert E. Preston 2011-6-16 2864 San Mateo Santa Cruz Mtns, Oil Creek watershed, 1.7 mi NW of Waterman Gap. 298 Comment
  JROH2242  Trifolium barbigerum John Hunter Thomas 1982-5-18 20941 San Mateo Jasper Ridge Biological Preserve, Stanford University; along SLAC fence Comment
  RSA633305  Trifolium bifidum Michael A. Vincent, Ethan H. Freid, Karl Vincent 1998-4-9 8201 San Mateo Along east side of Canada Road, ca. 200 yards southeast of its junction with Edgewood Road, just southwest of I-280, at Filoli Center. Comment
  JROH2251  Trifolium bifidum var. bifidum John H. Thomas 1958-5-10 7144 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC203053  Trifolium bifidum var. bifidum A. D. E. Elmer April, 1903 4798 San Mateo Portola Comment
  UCSC005926  Trifolium buckwestiorum Randall Morgan 1996-5-18 2955 San Mateo Seed from Coal Mine Ridge Comment
  UC16447  Trifolium ciliolatum Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  JROH2273  Trifolium depauperatum var. truncatum John H. Thomas 1974-4-25 17205 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge Comment
  JROH2274  Trifolium depauperatum var. truncatum John Hunter Thomas 1982-4-18 20871 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2232  Trifolium dichotomum John H. Thomas 1967-5-10 12845 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2277  Trifolium dubium John H. Thomas 1977-5-18 18614 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA4289  Trifolium dubium T. C. Fuller 1967-6-13 15945 San Mateo South side of road to Half Moon Bay, 0.7 mile west of Skyline Boulevard, Crystal Springs. 0 Comment
  JROH2281  Trifolium fucatum Marie Tifft 1952-5-10 42 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  SBBG3006  Trifolium fucatum L. S. Rose 1935-5-4 San Mateo open hills, Burlingame Comment
  UC137797  Trifolium fucatum C. F. Baker 1902-5-1 693 San Mateo Belmont Comment
  UC16510  Trifolium fucatum J. Burtt Davy 1895-4-20 1022 San Mateo Millbrae Comment
  UC16515  Trifolium fucatum J. Burtt Davy 1893-6-17 769 San Mateo Belmont Comment
  UC866776  Trifolium fucatum Alice Eastwood 1915-6-13 4720 San Mateo Granada Comment
  POM216312  Trifolium fucatum var. fucatum D. D. Keck 1933-5-11 2295 San Mateo Montara Light House and Radio Station. Comment
  RSA120972  Trifolium fucatum var. fucatum L. R. Abrams 1914-4-5 5086 San Mateo Menlo Park 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
  UC165628  Trifolium gracilentum J. Burtt Davy 1895-1 1026 San Mateo Pilarcitos Comment
  SJSU15444  Trifolium gracilentum var. gracilentum Toni Corelli 2010-5-13 603 San Mateo Pedro Point Headlands, Pacifica, CA, along South Ridge Trail 180 Comment
  RSA120974  Trifolium grayi W. R. Dudley 1896-4-17 s.n. San Mateo Pebble Beach Pasture. Pescadero. Comment
  JROH2325  Trifolium hirtum John Hunter Thomas 1985-5-2 23578 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2330  Trifolium hirtum John Hunter Thomas 1988-6-2 24498 San Mateo Jasper Ridge Biological Preserve, Stanford University; beach Comment
  JROH2336  Trifolium hybridum John Hunter Thomas 1983-6-2 22326 San Mateo Jasper Ridge Biological Preserve, Stanford University; near the low-flow crossing Comment
  POM126710  Trifolium microcephalum R. L. Pendleton 1907-4-20 611 San Mateo Lake Merced. 30 Comment
  UCSC006343  Trifolium obtusiflorum Randall Morgan 1995-6-22 2793 San Mateo Ridge W of Waterman Creek Comment
  JROH2340  Trifolium oliganthum John H. Thomas 1968-4-19 14306 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM278622  Trifolium oliganthum Lyman D. Benson 1935-5-5 6525 San Mateo Lake Searsville. Stanford University. Santa Cruz Mtn range. S.F. Bay watershed. 152 Comment
  JROH2346  Trifolium subterraneum John Hunter Thomas 1980-4-10 19873 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC2048923  Trifolium suffocatum Neal Kramer 2016-4-9 2169 a San Mateo Pescadero State Beach Parking Area. Comment
  UC729682  Trifolium variegatum Carl B. Wolf 1929-4-24 3657 San Mateo sw end Jasser Ridge; back of Stanford University 152 Comment
  UC165501  Trifolium variegatum var. melananthum J. Burtt Davy 1895-1 1017 San Mateo Pilarcitos Comment
  UC165542  Trifolium variegatum var. variegatum J. Burtt Davy 1893-6-22 838 San Mateo Lake Pilarcitos Comment
  JROH2399  Trifolium willdenovii John H. Thomas 1968-4-19 14297 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2403  Trifolium willdenovii John Hunter Thomas 1978-4-20 19079 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2409  Trifolium willdenovii John Hunter Thomas 1985-4-11 23520 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam and bridge across San Francisquito Creek Comment
  CHSC39828  Trifolium wormskioldii Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  UC16818  Trifolium wormskioldii J. Burtt Davy 1893-6-17 807 San Mateo Belmont South Coast Ranges Comment
  UC311114  Trifolium wormskioldii A. D. E. Elmer April, 1903 4858 San Mateo Lake San Andreas Comment
  JROH4725  Trillium chloropetalum John H. Thomas 1972-4-1 16047 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4730  Trillium chloropetalum John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM170078  Trillium chloropetalum var. chloropetalum C. F. Baker 1902-3-30 431 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC521063  Trillium chloropetalum var. giganteum Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain Comment
  CAS-BOT-BC521069  Trillium chloropetalum var. giganteum C. F. Leithold 1894-7-29 s.n. San Mateo Santa Cruz Peninsula: Near La Honda 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
  POM169950  Trillium ovatum A. D. E. Elmer 1903-04 4752 San Mateo Portola. Comment
  SEINET8502272  Trillium ovatum R. L. Oliver 1976-4-18 s.n. San Mateo San Mateo Memorial Park, La Honda. Comment
  JEPS100825  Triphysaria eriantha subsp. rosea Dean W. Taylor 2000-6-12 17463 San Mateo Highway 1 at junction Pescadero Road, Pescadero State beach 6 Comment
  JEPS10697  Triphysaria eriantha subsp. rosea W. L. Jepson 1921-4-3 9117 San Mateo near Colma (Colma Canyon); Colma Canyon Comment
  CAS-BOT-BC238558  Triphysaria floribunda Alice Eastwood 1915-5-6 s.n. San Mateo Burlingame Comment
  CAS-BOT-BC238560  Triphysaria floribunda F. W. Pennell; D. D. Keck 1940-5-15 25426 San Mateo Route 101, 4 miles west of Burlingame 182 Comment
  UC311192  Triphysaria floribunda A. D. E. Elmer April, 1903 4522 San Mateo South San Francisco Comment
  UCR139346  Triphysaria floribunda David D. Keck 1932-5-6 1471 San Mateo San Francisco Bay Region, 1 mi south of San Mateo on Highway US 101 61 Comment
  UC1063255  Triphysaria pusilla H. S. Yates 1935-5-8 5208 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. Comment
  JEPS70094  Triphysaria versicolor subsp. versicolor L. R. Heckard with T. I. Chuang and R. C. Bacigalupi 1972-6-14 2946 San Mateo Punta Ano Nuevo Comment
  UCD93599  Trisetum canescens P. B. Kennedy 1916-4-1 s.n. San Mateo Daly City, Colma Canyon, S San Francisco. Comment
  UCR101614  Triteleia George K. Helmkamp, E. A. Helmkamp 1998-5-16 3751 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  SEINET12044735  Triteleia ixioides P. R. Hichborn 1921-1 231 San Mateo Santa Cruz Mountain peninsula Comment
  CAS-BOT-BC523096  Triteleia ixioides subsp. ixioides Fred Hemphill 1973-5-6 783 San Mateo San Carlos, area north of Malabar Road and Melendy Drive 207 Comment
  CAS-BOT-BC523095  Triteleia ixioides subsp. ixioides W. R. Dudley 1894-5-1 s.n. San Mateo Santa Cruz Peninsula, from Woodside to Crystal Springs Lake Comment
  UCR156579  Triteleia ixioides var. ixioides P. W. Rundel 1963-7-7 1136 San Mateo San Francisco Bay watershed, Santa Cruz Mountain Range, South Spring Rd., Woodside 500 Comment
  JROH4746  Triteleia laxa John H. Thomas 1967-5-10 12852 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA6306  Triteleia laxa David D. Keck 1932-5-6 1466 San Mateo Belmont. Comment
  SD626  Triteleia laxa U. S. Grant IV 1925-6-15 San Mateo La Honda. Comment
  UC1133973  Triteleia laxa W. W. Akey 1935-5-25 26 San Mateo near Bolsa Point; Santa Cruz quad 30 Comment
  CAS-BOT-BC527392  Triteleia peduncularis Susan Sommers 1980-5-30 s.n. San Mateo Edgewood site, flat zone below hill with serpentine outcrops Comment
  CAS-BOT-BC200486  Triticum aestivum Walter Knight; Irja Knight 1965-4-24 1037 San Mateo Point San Bruno Comment
  CAS-BOT-BC74054  Turritis glabra John H. Thomas 1965-4-28 10606 San Mateo San Bruno Mountain in northern part of county. 914 Comment
  CAS-BOT-BC74059  Turritis glabra Elizabeth McClintock; Paul Reeberg 1988-3-15 s.n. San Mateo San Bruno Mountain. Near Ranger Station (Nike Base). Comment
  JROH5532  Typha angustifolia L. R. Abrams 1919-8-20 7347 San Mateo Jasper Ridge Biological Preserve, Stanford University. Searsville Lake. Comment
  RSA10402  Typha angustifolia Carl B. Wolf 1927-6-15 2168 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  UC1176859  Typha domingensis Peter Rubtzoff 1957-11-20 3581 San Mateo 0.2 mi n San Gregorio road junction (ca 60 ft e of the road); ditch near coastal road Comment
  CAS-BOT-BC213100  Ulex europaeus J. H. Thomas 1961-5-7 9322 San Mateo San Bruno Mountain in northern part of county Comment
  RSA144497  Ulex europaeus John H. Thomas 1960-11-11 8924 San Mateo Along Skyline Drive about 0.2 mi. N. of Pulgas water temple. 91 Comment
  RSA254229  Ulex europaeus Robert A. Norris 1975-3-31 2292 San Mateo Near Crocker Avenue, San Bruno Mountains. Comment
  JROH4226  Ulmus minor John Hunter Thomas 1992-5-14 25222 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near boat ramp Comment
  JEPS121560  Umbellularia californica Adam C. Schneider with C. Matt Guilliams 2013-3-9 39 San Mateo Crystal Springs Reservoir Comment
  JROH139  Umbellularia californica John H. Thomas 1974-10-12 17621 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH146  Umbellularia californica John Hunter Thomas 1991-12-28 25117 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA681685  Umbellularia californica Deb Annuschka 1989-2-24 S.N. San Mateo Yerba Buena Herbarium, Woodside. On slope next to path behind potting barn. Comment
  UCR2995  Umbellularia californica Wm. Horn Jr. 1963-4-9 630409- 01 San Mateo San Francisco Bay region, Hillsborough, 2240 Redington Rd. 30 Comment
  SEINET3559461 Image available Umbellularia californica Lewis S. Rose 1934-2-12 34028 San Mateo Burlingame. Comment
  CAS-BOT-BC404023  Urtica dioica subsp. holosericea Mrs. E. C. Sutliffe 1933-7-12 s.n. San Mateo Alpine Creek Road, Skyline Blvd. to La Honda Comment
  JROH4235  Urtica dioica subsp. holosericea John H. Thomas 1961-6-14 9547 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near bridge across the two parts of Searsville Lake Comment
  CAS-BOT-BC199175  Vaccinium cespitosum John H. Thomas 1961-8-27 9709 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC199176  Vaccinium cespitosum John H. Thomas 1961-5-7 9317 A San Mateo San Bruno Mountain in northern part of county 396 Comment
  JEPS27348  Vaccinium cespitosum Rimo Bacigalupi with L. R. Heckard and Jim Roof 1961-4-24 7609 San Mateo due n true summit of San Bruno Mt. (directly below and ne of KQED radio power station) 342 Comment
  CAS-BOT-BC199357  Vaccinium ovatum Reed C. Rollins 1942-4-30 3003 San Mateo S.E. slope of San Bruno Hills, about 1 mile west of Brisbane Comment
  CAS-BOT-BC199362  Vaccinium ovatum George Oberlander 1949-4-17 67 San Mateo Cahill Ridge Comment
  CAS-BOT-BC199363  Vaccinium ovatum W. R. Dudley 1898-3-5 s.n. San Mateo Kings Mountain Comment
  JEPS85569  Vaccinium ovatum Craig Dremann 1986-8-30 329 San Mateo entrance to Memorial Park, off Pescadero road Loma Mar Comment
  OBI14436  Vaccinium ovatum Lewis S. Rose 1964-3-14 64005 San Mateo Kings Mountain 610 Comment
  UCD118098  Vaccinium ovatum Lewis S. Rose 1964-3-14 64005 San Mateo Kings Mountain. 609 Comment
  CAS-BOT-BC199354  Vaccinium ovatum R. Stinchfield 1913-11-1 176 San Mateo King's Mt. Trail Comment
  POM149188  Vancouveria planipetala A. D. E. Elmer 1903-05 4922 San Mateo Iverson s Place; on the Pescadero Creek. Comment
  POM272218  Vancouveria planipetala Lyman Benson 1931-5-10 2795 San Mateo Woodside, Santa Cruz Mountains. 244 Comment
  RSA187475  Verbascum thapsus John H. Thomas 1958-9-15 7477 San Mateo 3 miles north of Woodside along Canada Rd. 122 Comment
  CAS-BOT-BC389699  Verbena lasiostachys Lorene Sigal 1969-7-1 s.n. San Mateo At Polhemus Road and Crystal Springs Road junction Comment
  JROH4259  Verbena lasiostachys var. lasiostachys John H. Thomas 1971-5-30 15975 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4264  Verbena lasiostachys var. lasiostachys John Hunter Thomas 1977-6-16 18745 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15962  Verbena lasiostachys var. lasiostachys John Rawlings, Ken Hickman 2016-5-26 1838 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
  JROH4283  Verbena lasiostachys var. scabrida John Hunter Thomas 1986-6-7 24081 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC615560  Verbena lasiostachys var. scabrida Beryl O. Schreiber 1932-5-29 307 San Mateo Crystal Springs Comment
  JROH4150  Veronica arvensis John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC306601  Veronica peregrina subsp. xalapensis A. D. E. Elmer June, 1903 4268 San Mateo Crystal Springs Lake Comment
  POM283784  Veronica peregrina var. xalapensis Lyman D. Benson 1930-5-21 2143 San Mateo Lake Searsville. 152 Comment
  POM16863  Vicia exigua C. F. Baker 1902-5-4 741 San Mateo Woodside. Comment
  CHSC27883  Vicia gigantea Susan Perkins 1978-3-24 14 San Mateo Stage Road, 4 mi. s of San Gregorio, 2.5 mi n of Pescadeero, ca. 8 mi sw of La Honda. 60 Comment
  SEINET7097925  Vicia gigantea A. G. Vestal 1937-6-15 s.n. San Mateo Lat. 37 14' 13ao N, Long. 122 24' 55ao W (NAD27 converted to WGS84 decimal degrees). Pebble Beach west of Pescadero. UTM Zone 10, 551863 mE, 4121109 mN. Comment
  SFV4290  Vicia gigantea J. Turner, F. M. Ball 1962-7-7 s. n. San Mateo Highway 1, almost 10 miles north of Santa Cruz County line Open roadside. 30 Comment
  CAS-BOT-BC157965  Vicia sativa Peter Rubtzoff 1976-6-30 8709 San Mateo San Bruno Mountains. Saddle area on N side of Guadalupe Canyon Parkway west of Radio Road junction, upper part of East Fork Colma Creek Canyon Comment
  JROH2435  Vicia sativa subsp. nigra John H. Thomas 1975-4-19 17798 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2445  Vicia sativa subsp. sativa John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD148148  Vicia tetrasperma G. K. Helmkamp, E. A. Helmkamp 2001-6-2 6769 San Mateo Central CA coast, Purissima Roas east of Half Moon Bay, 1.9 miles east of CA-1, disturbed roadside soil 167 Comment
  JEPS81151  Vicia villosa Edward Lee with H. L. Mason 1935-6-16 1527 San Mateo between Ano Nuevo and Franklin Point Comment
  JROH425  Vinca major John Hunter Thomas 1985-5-2 23577 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS50208  Viola adunca W. I. Follett 1934-2-18 1 San Mateo 4 mi n of Pigeon Point (from a point beside the main highway) Comment
  JEPS50209  Viola adunca W. I. Follett 1934-2-18 2 San Mateo 9/10 mi s of Pigeon Point (along Said Highway) Comment
  CAS-BOT-BC264040  Viola adunca R. E. Frenkel 1963-12-7 321 San Mateo San Francisco Water District, 1.5 miles N of Halfmoon Bay Club Comment
  RSA130984  Viola glabella M. N. paulson 1915-4-10 s.n. San Mateo Kings Mountain. Comment
  HSC23975  Viola glabella Mary Katherine Wicksten 1971-7-8 163 San Mateo Huddart Park, Squeeler Creek Comment
  POM190256  Viola ocellata D. D. Keck 1932-6-1 1495 San Mateo Above Woodside on La Honda road, east slope of Santa Cruz Mtns. Comment
  RSA130982  Viola ocellata Helen M. Edwards 1917-3-8 s.n. San Mateo Woodside. Comment
  SEINET215133 Image available Viola ocellata F. Martin, M Martin 1960-3-26 54 San Mateo YMCA Camp 10 miles east of Pescadero 152 Comment
  RSA412720  Viola pedunculata Glenn A. Gorelick 1967-4-15 s.n. San Mateo San Bruno Mts. overlooking Daly City near San Francisco. Comment
  RSA130764  Viola sempervirens W. R. Dudley 1895-6-6 s.n. San Mateo By road to Moore's above Iverson's, Pescadero Creek. The Santa Cruz Peninsula. Comment
  SEINET5729332 Image available Viola sempervirens Franklin Martin, Madelain Martin 1960-1 55 San Mateo YMCA camp, 10 miles east of Pescadero.; Pescadero 152 Comment
  CAS-BOT-BC199855  Vulpia bromoides