Search Results — 2000 specimen records retrieved (1319 records with coordinates)
(That's the default maximum. Contact Jason Alexander for larger data requests.)

Results for search: County=SAN MATEO; Source=All;   
Map/download results:

BerkeleyMapper with layers and yellow flags

Download Options:
Select all records · Select records with coordinates

Include annotations and voucher information

PLEASE NOTE: Due to changes in newer versions of Excel, directly copying text from the above selected results does not produce a usable table.
    Follow these steps:
      1. The contents of the selected results window must be copied into a text editor like TextEdit for Mac or WordPad for Windows
      2. The selected results must be saved as a new text document.
      3. This new text document can now be copied into Excel or imported as a tab delimited text file.

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

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

Click on column header to sort data (* sorts by family); click in leftmost checkbox to select record. CCH Help Page.
A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  SD41411  Abronia latifolia Edith A. Purer 1966-7-27 5381 San Mateo Two miles South of Pigeon Point Comment
  RSA0025758  Abronia latifolia E. A. Purer 1933-7-27 5381 San Mateo 2 miles south of Pigeon Point. Comment
  CAS-BOT-BC177043  Acacia dealbata George Oberlander 1950-2-1 451 San Mateo San Andreas Dam Comment
  CAS-BOT-BC177045  Acacia dealbata J. H. Thomas 1959-11-19 8514 San Mateo Near Bayshore and University Ave., East Palo Alto Comment
  JROH1980  Acacia dealbata John H. Thomas 1971-8-7 16021 San Mateo Jasper Ridge Biological Preserve, Stanford University 127 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-BC451135  Acaena pinnatifida var. californica A. D. E. Elmer 1903-4-1 4823 San Mateo San Bruno Hills Comment
  CAS-BOT-BC451129  Acaena pinnatifida var. californica Elizabeth McClintock; Philip Wheeler 1967-5-14 s.n. San Mateo East side of Mountain, above Harold Ave., Brisbane; San Bruno Mountains Comment
  UC761787  Acanthomintha duttonii R. F. Hoover 1941-5-20 5110 San Mateo Redwood City Comment
  RSA0076543  Acanthomintha obovata subsp. duttonii Harry A. Dutton, Harriet Ann Walker 1915-5-26 3819 San Mateo Near the Menlo Golf Club. Comment
  CAS-BOT-BC333297  Acer macrophyllum Robert Setzer 1969-3-30 2140 San Mateo Crystal Springs Road 60 Comment
  JROH159  Acer macrophyllum John H. Thomas 1975-6-5 17948 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below Searsville Dam 91 Comment
  RSA70706  Acer macrophyllum L. S. Rose 1950-4-1 50047 San Mateo San Mateo Canyon Comment
  SD41293  Acer macrophyllum Delzie Demaree 1932-4-9 8984 San Mateo Streams near Gov. Rolph Estate Comment
  SEINET12234140  Acer macrophyllum Unknown 1932-1 8984 San Mateo Streams near Gov. Rolph Estate Comment
  UCSB11438  Acer macrophyllum Olson, Jim 1962-4-15 San Mateo 1 mile east of Portola State Park on Portola State Park Road 243 Comment
  JROH166  Acer negundo John H. Thomas 1959-4-5 7669 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD117104  Acer negundo R. E. Dengler 1960-4-20 17 San Mateo near Corte de Madera Creek, 0.5 mile from its drainage into Searseville Lake, Jasper Ridge, Stanford Biological Reserve. 375 Comment
  CAS-BOT-BC21581  Achillea millefolium Ned Cahill 1974-4-19 144 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC21598  Achillea millefolium Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain. Below parking lot. Comment
  CAS-BOT-BC28766  Achillea millefolium K. L. Chambers 1984-6-14 5139 San Mateo San Gregorio State Beach, Highway 1. 30 Comment
  CHSC39835  Achillea millefolium Maibelle Williams 1929-5-10 San Mateo Moss Beach. Comment
  UCD18525  Achillea millefolium June McCaskill 1954-5-8 300 San Mateo Moss Beach. Comment
  UCR254762  Achillea millefolium Peter Rubtzoff 1977-6-21 9065 San Mateo San Francisco Bay Region, San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  UCSB22461  Achillea millefolium 1964-3-24 San Mateo About 8/10 of a mile off Skyline Blvd. along Sawyer Camp Road, the entrance off Millbrae Ave., around Crystal Spring Lake 106 Comment
Read comments
Sep 9 2011
  UCSB8055  Achillea millefolium Myrick, Donald 1966-6-1 San Mateo Off Highway 1 south of San Francisco near Pescadero Comment
  CAS-BOT-BC18853  Achillea millefolium Barbara Shervanick 1973-4-1 813 San Mateo San Bruno Mountain, at the end of Crocker Road Comment
  RSA416209  Achillea millefolium var. californica Glenn A. Gorelick 1967-4-14 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  JROH475  Achyrachaena mollis John Hunter Thomas 1988-5-3 24447 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD2527  Acmispon americanus Ulysses S. Grant IV Jun 1925 San Mateo Burlingame Comment
  SJSU7494  Acmispon americanus var. americanus L. S. Rose 1964-9-5 64071 San Mateo Emerald L W of Redwood City 243 Comment
  JROH2096  Acmispon wrangelianus John H. Thomas 1970-4-29 15617 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC391675  Actaea rubra W. R. Dudley 1904-4-23 s.n. San Mateo Santa Cruz Mountain Peninsula. By lower part Goat Ranch Creek Comment
  CAS-BOT-BC391681  Actaea rubra Roland Block 1924-7-1 s.n. San Mateo King Mountain Comment
  CAS-BOT-BC29295  Adenocaulon bicolor A. D. E. Elmer 1903-6-1 4300 San Mateo Pescadero Creek Comment
  CDA352  Adenocaulon bicolor A. C. Browne 1952-7-13 San Mateo Pescadero Creek. 0 Comment
  CAS-BOT-BC139956  Adenostoma fasciculatum David D. Keck 1932-5-25 1781 San Mateo Hills two miles west of Belmont Comment
  CAS-BOT-BC139960  Adenostoma fasciculatum Linda Fox 1969-6-20 1001 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  JROH3583  Adenostoma fasciculatum var. fasciculatum John H. Thomas 1969-5-28 15078 San Mateo Jasper Ridge Biological Preserve, Stanford University 136 Comment
  RSA453174  Adenostoma fasciculatum var. fasciculatum L. S. Rose 1935-6-9 35212 San Mateo Emerald lake, W. of Redwood City. Comment
  RSA85065  Adenostoma fasciculatum var. fasciculatum D. D. Keck 1932-5-25 1781 San Mateo Hills 2 miles W of Belmont Comment
  RSA95821  Adenostoma fasciculatum var. fasciculatum L. S. Rose 1953-6-29 53045 San Mateo Emerald Lake, hills w. of Redwood City 91 Comment
  CHSC112139  Aeonium simsii Dean Wm. Taylor; Alison E. L. Cowell 2005-4-26 19306 San Mateo Pacifica, sea bluffs betwween Shelter Cove and Pacifica State Beach. 16 Comment
  RSA131266  Aesculus californica Lucile Roush 1917-6-3 s.n. San Mateo Jasper Ridge, Santa Cruz Mountain Peninsula. Comment
  RSA292572  Agoseris grandiflora Lyman Benson 1935-5-12 6553 San Mateo Menlo Park 30 Comment
  SD30732  Agoseris grandiflora Edith A. Purer 1933-6-4 3655 San Mateo Spring Valley Lakes Comment
  JROH480  Agoseris grandiflora var. grandiflora John H. Thomas 1967-6-1 12959 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC22978  Agoseris grandiflora var. grandiflora P. C. Wheeler 1966-4-24 s.n. San Mateo Buckeye Canyon Comment
  CAS-BOT-BC23019  Agoseris grandiflora var. grandiflora W. R. Dudley 1899-5-14 s.n. San Mateo Fields southwest of Baden Comment
  CAS-BOT-BC15226  Agoseris hirsuta W. R. Dudley 1896-4-17 s.n. San Mateo Near Pebble Beach, Santa Cruz Mountain Peninsula Comment
  RSA416454  Agoseris hirsuta D. D. Keck 1932-5-6 1461 San Mateo Belmont. Comment
  CAS-BOT-BC15227  Agoseris hirsuta W. R. Dudley 1896-11-14 s.n. San Mateo Santa Cruz Mountain Peninsula, on dam Pelarcitos Creek Comment
  JROH4774  Agrostis avenacea John Hunter Thomas 1982-6-7 21032 San Mateo Jasper Ridge Biological Preserve, Stanford University 108 Comment
  POM226850  Agrostis avenacea Henry E. Wreser 1932-6-4 s.n. San Mateo Black Mountain Road. Hillsborough Hills. Near Burlingane. 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
  UC143951  Agrostis densiflora Dr. E. B. Copeland 1903-8-13 3308 San Mateo Montara Point Comment
Read comments
Nov 29 2009
  RSA523957  Agrostis exarata Gordon H. True Jr. 1937-10-16 849 San Mateo Near Thornton Beach 259 Comment
  CAS-BOT-BC139464  Agrostis hallii Walter Knight; Irja Knight 1965-6-20 s.n. San Mateo San Bruno Mountain. In Crystal Cave Canyon. Comment
  POM199091  Agrostis hallii A. D. E. Elmer 1903-06 4264 San Mateo Alpine School House. Comment
  CAS-BOT-BC138865  Agrostis microphylla Le Roy Abrams 1902-5-11 2458 San Mateo Crsystal Springs. Comment
  JROH4790  Agrostis pallens John Rawlings 2005-5-25 1039 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just inside Escobar gate south of Road F and east of the gate near the fenceline. 160 Comment
  JROH4802  Agrostis pallens John Rawlings 2011-6-14 1073 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill side of Trail 5. 119 Comment
  JROH4803  Agrostis pallens John Rawlings 2013-5-21 1162 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill from power poles near path to Rattlesnake Rocks from Rd. D. 133 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
  SEINET7594107 Image available Agrostis pallens Henry E. Meser 1932-1 s. n. San Mateo Black Mountain Road, Hillborough Hills near Burlingame Comment
  JROH4810  Agrostis stolonifera John Rawlings 2009-7-23 1080 B San Mateo Jasper Ridge Biological Preserve, Stanford University. Weedy bed of San Francisquito Creek near Dennis Martin site marker. 71 Comment
  JEPS101121  Aira caryophyllea Dean W. Taylor 1991-5-20 11786 San Mateo coastal bluffs near south bank of Pescadero Creek at Highway 1 9 Comment
  JROH4831  Aira caryophyllea John Hunter Thomas 1985-5-22 23681 San Mateo Jasper Ridge Biological Preserve, Stanford University 91 Comment
  CAS-BOT-BC138232  Aira caryophyllea var. caryophyllea A. D. E. Elmer 1903-5-1 4705 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC138246  Aira caryophyllea var. caryophyllea H. A. Borthwick 1920-6-1 187 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City. Comment
  UCSC008506  Aira praecox Randall Morgan 2013-5-24 5526 San Mateo Bean Hollow State Beach Comment
  JROH4302  Alisma triviale Toni Corelli 2005-8-10 301 San Mateo Jasper Ridge Biological Preserve, Stanford University; offshoot of main creek in wet area along new bridge near beginning of trail 12 109 Comment
  JROH4547  Allium amplectens Toni Corelli 2005-5-18 288 San Mateo Jasper Ridge Biological Preserve, Stanford University; about 1 m west of Road F 174 Comment
  CAS-BOT-BC467294  Allium dichlamydeum Philip C. Wheeler 1965-5-8 s.n. San Mateo Sierra Point Comment
  SEINET12043950  Allium dichlamydeum H. L. Mason 1921-1 s.n. San Mateo Jasper Ridge near Sand Hell Caves Comment
  RSA40253  Allium falcifolium L. S. Rose 1948-5-16 48111 San Mateo Emerald Lake, west of Redwood City. 152 Comment
  UC766745  Allium falcifolium R. F. Hoover 1941-4-23 4907 San Mateo Redwood City hills Comment
  UC796644  Allium falcifolium Ira L. Wiggins 1949-4-23 12049 San Mateo w Redwood City (hills near Emerald Lakes); Emerald Lakes Comment
  JROH4555  Allium lacunosum var. lacunosum H. J. Dengler 1972-4-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. S.W. of '"road" on serpentine, and E. of Mimulus Gully, opp. oaks on sep., top of J.R. Comment
  JROH4567  Allium lacunosum var. lacunosum John Hunter Thomas 1978-4-20 19082 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4558  Allium peninsulare var. franciscanum John H. Thomas 1971-5-30 15963 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC475495  Allium triquetrum D. E. Breedlove 1963-4-7 4352 San Mateo 3 miles north of Pescadero Comment
  CAS-BOT-BC474307  Allium unifolium R. S. Ferris 1921-5-29 2183 San Mateo New Years Pt. Comment
  SEINET5626583 Image available Allocarya chorisiana Unknown 1907-1 8439 San Mateo Near Lake Merced Comment
  JROH1324  Alnus rhombifolia John H. Thomas 1964-11-29 10539 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below dam Comment
  RSA177007  Alnus rhombifolia John H. Thomas 1964-11-29 10539 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto; along San Francisquito Creek below dam. Comment
  CAS-BOT-BC169357  Alnus rubra W. R. Dudley 1902-12-31 s.n. San Mateo Along Gazos Creek Comment
  RSA107019  Alnus rubra L. S. Rose 1955-11-7 55189 San Mateo Tunitos. 30 Comment
  SEINET10919408  Alnus rubra LeRoy R. Abrams Abrams s.n. San Mateo Near Rescadero on road to Half-Moon Bay. Santa Cruz Mountain Peninsula. Comment
  SBBG39514  Amaranthus deflexus L. S. Rose 1970-7-26 70079 San Mateo Hillsborough, Black Mtn, Skyline Blvd 121 Comment
  UCR242715  Amaranthus deflexus A. C. Sanders 2012-11-11 40517 San Mateo SF Bay Area, Daly City near Colma, between Junipero Serra Blvd. and San Pedro Rd. on Washington St. 56 Comment
  SD87531  Ambrosia chamissonis Frank W. Peirson 1925-9-13 6427 San Mateo Rockaway Beach, back of beach Comment
  CAS-BOT-BC44927  Ambrosia chamissonis Saichi Kawahara 1968-6-15 443 San Mateo Pescadero Beach, 150 yards south of mouth of Pescadero Creek, Highway 1 3 Comment
  RSA123305  Ambrosia chamissonis N. K. Carlson 1935-7-5 120 San Mateo [Unspecified] 0 Comment
  CAS-BOT-BC136835  Amelanchier utahensis L. R. Abrams 1916-4-22 5577 San Mateo Pilarcitos [Canon] Canyon 3 Comment
  UC204200  Amelanchier utahensis A. D. E. Elmer May 1903 4659 San Mateo Slate's Creek Comment
  CAS-BOT-BC222455  Amsinckia lunaris Alice Eastwood 1917-5-12 s.n. San Mateo San Bruno Hills Comment
  UC24619  Amsinckia lycopsoides Alice Eastwood April, 1896 San Mateo near San Mateo Comment
  JROH1344  Amsinckia menziesii John H. Thomas 1966-4-29 11589 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0089951  Amsinckia menziesii John H. Thomas 1966-4-29 11589 San Mateo Jasper Ridge Biological Experimental Area, 5 miles SW of Palo Alto. 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
  JROH3373  Anagallis minima John H. Thomas 1973-4-14 16563 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC45187  Anaphalis margaritacea Walter Knight; Irja Knight 1964-3-15 576 San Mateo San Bruno Mountain, Colusa Canyon Comment
  CAS-BOT-BC391913  Anemone grayi J. H. Thomas 1954-4-15 3905 San Mateo About 1 1/2 mile SW of Searsville Lake 228 Comment
  POM176875  Anemone grayi W. R. Dudley 1894-3-26 s.n. San Mateo Redwoods beyond King's Mt. House Comment
  SEINET12087662  Anemone grayi L. S. Rose 1931-1 s.n. San Mateo Kings Mountain Comment
  UC463321  Anemone oregana W. R. Dudley 1894-3-26 San Mateo redwoods beyond King's Mt. House; Santa Cruz Peninsula Comment
  CAS-BOT-BC273186  Anisocarpus madioides C. F. B. 1902-5-10 300 San Mateo Kings Mountain Comment
  HSC24049  Anisocarpus madioides Mary Katherine Wicksten 1971-6-16 36 San Mateo Bank at Huddart Park, by Werder Flat Comment
  JROH497  Anisocarpus madioides H. J. Dengler 1972-5-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; below redwood grove along S.F. Creek at Searsville Rocks. Growing at Violet Site - also on hillside 100 yds. south of Tiger Lily Site Comment
  CAS-BOT-BC102293  Anthemis cotula Ira L. Wiggins 1973-6-24 22021 San Mateo San Francisquito Creek, about 75 m above Pope Street bridge, along line between Santa Clara and San Mateo Counties Comment
  CAS-BOT-BC280639  Anthoxanthum occidentale L. R. A. 1902-1-7 2258 San Mateo Kings Mountain Comment
  CAS-BOT-BC280643  Anthoxanthum occidentale W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Mountain Peninsula. Moore's Place, Pescadero Creek Comment
  UC2013133  Antirrhinum orontium Neal Kramer 2012-4-27 2044 San Mateo Moss Beach Hills approximately 3/4 mile north of the Half Moon Bay Airport entrance. Comment
  JROH3599  Aphanes occidentalis John H. Thomas 1961-4-29 9181 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3603  Aphanes occidentalis John H. Thomas 1973-4-14 16564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3610  Aphanes occidentalis John Hunter Thomas 1987-4-4 24170 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC454476  Aphanes occidentalis John H. Thomas 1974-4-11 17125 San Mateo Serpentine area to the SE of Canada Road and Edgewood Road. NW of Woodside. 152 Comment
  CAS-BOT-BC454490  Aphanes occidentalis Margaret A. Barry 1937-5-8 68 San Mateo Exposed Slopes of Coal Mine Ridge Comment
  RSA195611  Aponogeton distachyos Peter H. Raven 1967-2-18 20829 San Mateo On east side of State Highway 5, 4.6 miles south of southern boundary of San Francisco. Comment
  CAS-BOT-BC392066  Aquilegia eximia W. R. Dudley 1902-9-21 s.n. San Mateo Santa Cruz Peninsula. Southeast of Crystal Springs Lake Comment
  JROH3401  Aquilegia formosa John Hunter Thomas 1985-4-22 23539 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC405857  Aquilegia formosa Josephine Randall 1908-4-12 s.n. San Mateo King's Mt. Road Comment
  CAS-BOT-BC405897  Aquilegia formosa Everett O'Bannon; Nancy O'Bannon 1956-4-15 s.n. San Mateo Sawyer's Road, near Crystal Springs Lake above Burlingame and Millbrae Comment
  CAS-BOT-BC17321  Arabis blepharophylla Alice Eastwood 1914-3-12 3753 San Mateo San Bruno Hills. Comment
  POM143334  Arabis blepharophylla A. D. E. Elmer 1903-04 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
  RSA0125532  Arabis blepharophylla R. C. Rollins 1941-3-22 2950 San Mateo San Bruno Hills, 2 miles southeast of Daly City Comment
  SEINET11971579  Arabis blepharophylla L. Constance, Bacigalupi, R.; Bell, C. R. 1951-1 3369 San Mateo SE side of Colma Canyon 61 Comment
  CAS-BOT-BC171643  Aralia californica Eric Walther 1919-7-4 s.n. San Mateo Woodside Comment
  UC396977  Aralia californica Fred Gianocca 1929-11-8 San Mateo Half Moon Bay Comment
  RSA112355  Arbutus menziesii W. R. Dudley 1893-2-18 s.n. San Mateo Searsville to La Honda. Comment
  UCSB18630  Arbutus menziesii Schulte, John 1963-4-9 San Mateo Jasper Ridge, 3 miles southwest of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mounatins 152 Comment
  SEINET11989292  Arctostaphylos S. W. Edwards 1982-1 s.n. San Mateo Foothill Park Comment
  CAS-BOT-BC24200  Arctostaphylos andersonii W. R. Dudley 1906-5-8 s.n. San Mateo Near Crystal Springs Lake, Santa Cruz mts. Comment
  SBBG25382  Arctostaphylos andersonii R. Gankin 1959-3-22 324 San Mateo King's Mtn Rd, 1.2 mi E of jct with St Hwy 5, ca. 5 mi W of Woodside Comment
  SEINET11987248  Arctostaphylos andersonii var. imbricata W. Knight, Knight, I. 1981-1 3903 San Mateo Tilden Botanic Garden, Berkeley, originally from San Bruno Mt Comment
  JROH1922  Arctostaphylos canescens subsp. canescens L. R. Abrams 1910-8-14 4990 San Mateo Jasper Ridge, near Stanford University Comment
  CAS-BOT-BC23501  Arctostaphylos crustacea Brandegee 1889-4-1 8 San Mateo Redwood City Comment
  SEINET11977765  Arctostaphylos crustacea J. I. McMurphy 1906-1 7 San Mateo Kings Mt., Santa Cruz Mts., Santa Cruz Peninsula 488 Comment
  JROH1942  Arctostaphylos crustacea subsp. crustacea John Hunter Thomas 1983-7-20 22893 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1943  Arctostaphylos crustacea subsp. crustacea John Hunter Thomas 1987-4-30 24210 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  OBI14494  Arctostaphylos crustacea subsp. crustacea E. K. Balls 1948-3-19 7870 San Mateo 2 mi N of S end of State rte 5 305 Comment
  SBBG34020  Arctostaphylos crustacea subsp. crustacea L. S. Rose 1969-3-27 69006 San Mateo King's Mtn Rd, 4 mi W of Woodside. 304 Comment
  RSA681636  Arctostaphylos cruzensis Annuschka Deb 1989-1-20 1 San Mateo Woodside. Comment
Read comments
Mar 21 2015
  CAS-BOT-BC24734  Arctostaphylos glandulosa subsp. glandulosa Walter Knight; Roger Raiche 1982-1-23 4420 San Mateo San Bruno Mtn. Buckeye Canyon on Oak Ridge. 102 Comment
  CAS-BOT-BC24483  Arctostaphylos imbricata Arthur L. Menzies 1963-3-9 s.n. San Mateo On ridge below se. end of parking lot. San Bruno Hills. Comment
  CAS-BOT-BC24492  Arctostaphylos imbricata Arthur L. Menzies 1963-3-10 s.n. San Mateo San Bruno Hills, on far ridge se. of parking lot. Comment
  CAS-BOT-BC24494  Arctostaphylos imbricata Marian L. Campbell 1915-2-15 s.n. San Mateo San Bruno Hills. Comment
  RSA195588  Arctostaphylos imbricata John H. Thomas 1961-5-7 9319 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  RSA632767  Arctostaphylos imbricata Jon E. Keeley 1996-6-24 27566 San Mateo On knob below end of paved road at top of San Bruno Mountain. 350 Comment
  CAS-BOT-BC40169  Arctostaphylos montaraensis Walter Knight; Irja Knight; James B. Roof; Gregory Whipple; Albert Seneres 1969-9-22 2791 San Mateo .9 from Pilarcitos Dam enroute to Montara Mtt. on San Francisco Water Dept. property. 274 Comment
  RSA167727  Arctostaphylos montaraensis R. F. Thorne, Percy C. Everett 1963-6-9 32224 San Mateo On top of San Bruno Mountain on Kamchatka Point near the TV tower 335 Comment
Read comments
Mar 14 2016
  UCD51756  Arctostaphylos montaraensis Walter Knight; Irja Knight and Elizabeth McClintock 1982-3-27 4496 San Mateo Downhill and north from Pacific Rock; San Bruno Mountain. 304 Comment
  UC486533  Arctostaphylos nummularia Mrs. H. P. Bracelin 1932-7-4 San Mateo e Pescadero; Butano Forest Comment
  JEPS98893  Arctostaphylos pacifica James Roof 1961-4-18 San Mateo type locality; Pacific Ridge, San Bruno Mountain Comment
  CAS-BOT-BC44705  Arctostaphylos regismontana Lewis S. Rose 1932-1-16 3214 San Mateo Kings Mountain 640 Comment
  CAS-BOT-BC44709  Arctostaphylos regismontana Walter Knight; Irja Knight; James B. Roof 1967-1-19 2058 San Mateo Whipple Road, near Crystal Springs Lakes Comment
  CAS-BOT-BC44749  Arctostaphylos regismontana W. R. Dudley 1894-5-1 s.n. San Mateo Woodside to Crystal Springs Reservoir 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
  UC1120848  Arctostaphylos regismontana A. E. Wieslander 1929-3-19 47 San Mateo Kings Mountain Rd Santa Cruz Quadrangle, Peters Creek (head of creek, near Plot 11) Comment
  UCD53804  Arctostaphylos regismontana Roman Gankin 1966-5-17 740 A San Mateo Montara Mountain. Comment
  CAS-BOT-BC44745  Arctostaphylos regismontana W. R. Dudley 1900-5-16 s.n. San Mateo On stage road from King's Mt. to Spanishstown Comment
  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
  POM131770  Arctostaphylos tomentosa subsp. crustacea C. F. Baker 1902-5-10 817 San Mateo Kings Mountain. Comment
  POM299443  Arctostaphylos tomentosa subsp. crustacea L. S. Rose 1942-3-30 42007 San Mateo Kings Mountain. 183 Comment
  RSA636850  Arctostaphylos tomentosa subsp. crustacea S. H. Gudmonson 1978-3-22 18 San Mateo 2 miles north of Woodside Road on Kings Mountain Road. Comment
  UCD51856  Arctostaphylos tomentosa subsp. crustacea Roman Gankin 1959-2-22 321 San Mateo 3.5 miles from junction state route 5 on King's Mt. Road, San Mateo County, California. Comment
  CAS-BOT-BC46835  Arctostaphylos uva-ursi Arthur Menzies; Elizabeth McClintock 1963-2-16 s.n. San Mateo s.e. of parking lot below top of mountain Comment
  CAS-BOT-BC46839  Arctostaphylos uva-ursi Walter Knight; Irja Knight 1981-3-1 4055 San Mateo from fire road edge about 200 yards east of summit parking lot. of San Bruno Mountain. Comment
  SJSU6081  Arctostaphylos uva-ursi S. H. Casey 1969-5-18 256 San Mateo near summit of San Bruno Mt Comment
  SEINET11987331  Arctostaphylos uva-ursi J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4212 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from San Bruno Mt., near Pacific Rock Comment
  POM367521  Arctostaphylos uva-ursi var. coactilis Gary D. Wallace 1975-11-29 1516 San Mateo San Bruno Mtn., e. of parking lot at top of Radio Rd. 396 Comment
  SEINET11987482  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4200 San Mateo Strybing Arboretum, Golden Gate Park, San Francisco, orig. from Samoa Sand Spit Comment
  CAS-BOT-BC47706  Armeria maritima subsp. californica J. H. Thomas 1963-8-4 10237 San Mateo Just north of Pigeon Point Light House Comment
  CAS-BOT-BC47707  Armeria maritima subsp. californica W. R. Dudley 1896-4-18 s.n. San Mateo Pebble Beach Pasture, Pescadero Comment
  SJSU4470  Armeria maritima subsp. californica S. R. Piazza 1963-6-27 San Mateo by lighthouse , Hwy 1, 2 mi N of Pigeon Point Comment
  CHSC1225  Armeria maritima var. californica J. Baynes 1929-5-23 San Mateo Half Moon Bay. Comment
  CAS-BOT-BC84887  Artemisia californica Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain, burned area in Devil's Arroyo Comment
  RSA116787  Artemisia californica L. R. Abrams 1902-12-23 3098 San Mateo Jasper Ridge, Searsville Comment
  SEINET11853229  Artemisia californica Unknown 1930-1 7303 San Mateo Menlo Park Golf Court Comment
  CAS-BOT-BC93935  Artemisia douglasiana Gordon H. True 1937-7-23 803 San Mateo Along Salada Beach - Skyline Blvd. Road Comment
  CAS-BOT-BC93939  Artemisia douglasiana Ira L. Wiggins 1975-8-5 22175 San Mateo Bed of San Francisquito Creek, ca 100 m above Pope Street bridge, San Mateao County side of Santa Clara-San Mateo Comment
  CAS-BOT-BC93640  Artemisia pycnocephala W. R. Dudley 1909-10-4 s.n. San Mateo Santa Cruz Mountain Peninsula - sands near Mussel Rock Comment
  CAS-BOT-BC93643  Artemisia pycnocephala Alice Eastwood 1914-10-1 s.n. San Mateo Mussel Rock Comment
  CAS-BOT-BC146256  Arundo donax Malcom A. Nobs; S. Galen Smith 1949-8-25 1574 San Mateo South of Rockaway Beach. Comment
  POM313191  Arundo donax S. Galen Smith, Malcom A. Nobs 1949-8-25 1574 San Mateo Marsh south of Rockaway Beach. Comment
  CAS-BOT-BC400510  Asarum caudatum A. D. E. Elmer 1903-6-1 4421 San Mateo Butano Creek Comment
  SJSU10590  Asarum caudatum W. F. Larson 1973-4-16 San Mateo 5 mi E of La Honda 457 Comment
  RSA176418  Asclepias fascicularis John H. Thomas 1964-7-9 10444 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  SEINET10580520  Asclepias fascicularis Lewis S. Rose 1965-8-27 Rose 65092 San Mateo Emerald Lake, West of Redwood City, dry slopes. 122 Comment
  POM58697  Aster chilensis Edward L. Greene 1902-9-2 1550 San Mateo Crystal Springs Lake Comment
  UCR254760  Aster chilensis Peter Rubtzoff 1975-9-11 8376 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  UCR254764  Aster chilensis Peter Rubtzoff, Roman Gankin 1975-9-11 8377 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  RSA14211  Aster chilensis C. B. Wolf 1927-1-24 198 San Mateo Near Portola Comment
  JROH1991  Astragalus gambelianus John H. Thomas 1974-4-24 17184 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC186754  Astragalus gambelianus W. R. Dudley 1906-5-8 s.n. San Mateo Near head of Crystal Lake Comment
  UC903409  Astragalus gambelianus Lois E. James 1947-4-11 1758 San Mateo hills back Redwood City; hills back of Redwood City Comment
  POM16308  Astragalus nuttallii C. F. Baker 1903-6-30 3358 San Mateo Pillar Point Comment
  CAS-BOT-BC194429  Astragalus nuttallii var. virgatus Copeland 1905-6-3 3299 San Mateo Montara Pt. Comment
  BLMAR756  Astragalus pycnostachyus var. pycnostachyus Clara Sander 2005-7-5 756 San Mateo San Gregorio, Coastal bluff 25 Comment
  CAS-BOT-BC193091  Astragalus pycnostachyus var. pycnostachyus Alice Eastwood; John Thomas Howell 1938-6-26 6064 San Mateo Arroyo de los Frijoles Comment
  UC1128872  Astragalus pycnostachyus var. pycnostachyus G. E. Sindel 1935-7-25 298 San Mateo 2 mi nnw Pescadero; Santa Cruz Quad., nnw of Pescadero Comment
  CAS-BOT-BC389708  Asyneuma prenanthoides L. Sigal 1970-7-1 s.n. San Mateo Butano Girl Scout Camp Comment
  UC1191360  Atriplex hortensis Malcolm A. Nobs, S. Galen Smith 1949-8-27 1619 San Mateo salt marshes e Redwood City; e of Redwood City Comment
  UC583161  Atriplex leucophylla Lewis S. Rose 1936-8-16 36713 San Mateo Granada Granada (Sea Beaches) 3 Comment
  JROH1806  Atriplex prostrata John Hunter Thomas 1979-9-9 19729 San Mateo Jasper Ridge Biological Preserve, Stanford University; edge of Searsville Lake Comment
  UC1191296  Atriplex triangularis Malcolm A. Nobs, S. Galen Smith 1949-8-26 1595 San Mateo marshes at mouth Pescadero Creek mouth Pescadero Creek Comment
Read comments
Feb 28 2011
  JEPS128391  Avena barbata Adam C. Schneider 2013-5-17 147 San Mateo Crystal Springs Reservoir. Comment
  RSA254228  Avena barbata Robert A. Norris 1975-3-21 2289 San Mateo Hilly grassland near Crocker Ave., San Bruno Mts. Comment
  CAS-BOT-BC146213  Avena brevis John Thomas Howell 1954-6-16 30003 San Mateo Belmont. Ralston Avenue at 6th. Comment
  UCD56091  Avena strigosa T. C. Fuller 1971-6-10 19879 San Mateo 1.6 km east of San Gregorio. Comment
  CAS-BOT-BC68328  Azolla filiculoides Volney Rattan 1883-3-1 s.n. San Mateo Milbrae Comment
  RSA128831  Baccharis douglasii S. D. Halsey 1908-9-15 s.n. San Mateo Palo Alto 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
  JROH533  Baccharis glutinosa John H. Thomas 1968-5-31 12938 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC99504  Baccharis pilularis Elizabeth McClintock 1966-9-29 s.n. San Mateo Lower part of Colma Canyon, San Bruno Mountain Comment
  CAS-BOT-BC99511  Baccharis pilularis J. H. Thomas 1949-10-16 1144 San Mateo just north of outlet of San Gregorio Creek Comment
  CAS-BOT-BC99520  Baccharis pilularis George Oberlander 1949-8-20 361 San Mateo Sweeney Ridge Comment
  CAS-BOT-BC99523  Baccharis pilularis Ned Cahill 1974-4-18 118 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC99536  Baccharis pilularis Carl B. Wolf 1934-11-9 6240 San Mateo 200 yds. south of Pigeon Point Lighthouse 15 Comment
  RSA40137  Baccharis pilularis L. S. Rose 1948-11-14 48235 San Mateo Hills west of Belmont 183 Comment
  RSA38968  Baccharis pilularis Edith A. Purer 1933-8-4 5409 San Mateo Clay hillside near Baden Station Comment
  CAS-BOT-BC16626  Barbarea orthoceras Fred Hemphill 1973-3-9 716 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC16630  Barbarea orthoceras John H. Thomas 1965-4-29 10617 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC16633  Barbarea orthoceras Walter Knight; Irja Knight 1965-3-14 933 San Mateo San Bruno Mountain. Manzanita Dyke north of mountain summit. Comment
  JROH1441  Barbarea orthoceras John H. Thomas 1968-3-17 14183 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA482825  Barbarea orthoceras Glenn A. Gorelick 1967-4-4 s.n. San Mateo San Bruno Mts; overlooking Daly City near San Francisco. Comment
  POM272597  Barbarea vulgaris Lyman Benson 1929-3-15 1009 San Mateo Bank of San Francisquito Creek at Stanford Isolation Hospital. Comment
  JEPS35291  Bellardia trixago J. H. Thomas 1962-5-8 9852 San Mateo Pigeon Point Comment
  CDA6266  Bellardia trixago T. C. Fuller 1967-6-13 15944 San Mateo South side of road to Half Moon Bay, 0.7 mile west of Skyline Boulevard, Crystal Springs. 0 Comment
  RSA681565  Berberis nevinii Annuschka Deb 1989-4-14 88 San Mateo YBN Demonstration Garden Comment
  CAS-BOT-BC75868  Berberis pinnata W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Peninsula. Hills west of San Andreas Reservoir. Comment
  CAS-BOT-BC75872  Berberis pinnata Alice Eastwood 1913-2-22 s.n. San Mateo San Bruno Hills. Comment
  CAS-BOT-BC75874  Berberis pinnata A. D. E. Elmer 1903-4-1 4820 San Mateo San Bruno Hills. Comment
  POM149245  Berberis pinnata A. D. E. Elmer 1903-04 4820 San Mateo San Bruno Hills Comment
  UC306615  Berberis pinnata A. D. E. Elmer April, 1903 4820 San Mateo San Bruno Hills Comment
  CDA34347  Beta vulgaris E. Finley 1990-10-16 s.n. San Mateo Shoreline Blvd., Mountain View. 0 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-BC95348  Bowlesia incana Ned Cahill 1975-1-8 391 San Mateo Near jct. of Canada and Edgewood roads, about 3 mi. W of Redwood City Comment
  CAS-BOT-BC420227  Boykinia occidentalis W. R. Dudley 1895-6-6 s.n. San Mateo Banks of Pescadero Creek above Iverson's Comment
  JROH4852  Brachypodium distachyon John Hunter Thomas 1986-6-7 24089 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA20475  Brachypodium sylvaticum J. Beall 2003-12-12 PDR 1387963 San Mateo San Francisco Bay Area; Along Hwy 84 at Grandview Dr. 0 Comment
  CDA33585  Brachypodium sylvaticum Robin Breckenridge & Katie Filippini 2010-7-22 PDR# 1313482 San Mateo Woodside; Grandview Drive. 0 Comment
  CHSC91953  Brachypodium sylvaticum K. Melo 2003-12-1 1387519 San Mateo San Francisco Peninsula. Hwy 84 at Grandview Terrace and Schilling lake. Martin Creek drainage. Comment
  JROH5658  Brachypodium sylvaticum John Rawlings 2014-7-23 1267 San Mateo Jasper Ridge Biological Preserve, Stanford University; along downhill verge of Rd G between Rd C and the first small drainage crossing Rd G 108 Comment
  POM272569  Brassica nigra Lyman Benson 1939-6-24 9676 San Mateo Menlo Park. 30 Comment
  JROH1461  Brassica rapa John H. Thomas 1969-4-12 14887 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC36797  Brassica rapa Alice Eastwood 1919-9-1 s.n. San Mateo Chinese garden. Comment
  CAS-BOT-BC145493  Briza maxima Elizabeth McClintock; Paul Reeberg 1988-4-15 s.n. San Mateo San Bruno Mountains. East of East Powerline. 99 Comment
  CAS-BOT-BC145327  Briza minor Copeland 1903-5-24 3257 San Mateo Above Crystal Springs Lake. Comment
  CDA1781  Briza minor A. A. Beetle 1941-4-2 1738 San Mateo Near San Carlos Comment
  JROH4881  Briza minor John H. Thomas 1967-6-1 12957 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4890  Briza minor W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 9, halfway to top Comment
  UCR101608  Briza minor George K. Helmkamp, E. A. Helmkamp 1998-5-16 3747 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  SEINET3884838  Brodiaea coronaria var. macropoda K. Harper 1984-4-25 84 -3 San Mateo Along crest of Jasper Ridge, Research Preserve, Stanford University.; 0 Comment
  JROH4584  Brodiaea elegans subsp. elegans John Hunter Thomas 1982-6-7 21025 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1134026  Brodiaea elegans subsp. elegans N. Carlson 1935-6-20 72 San Mateo between Slate and Oil Creek; Santa Cruz Quad. 670 Comment
  UC843600  Brodiaea terrestris subsp. terrestris Lewis S. Rose 1935-5-4 35150 San Mateo Burlingame Comment
  CAS-BOT-BC148978  Bromus carinatus var. carinatus John Thomas Howell 1960-4-20 35210 A San Mateo In garden of Frances Payne Stickney, Hillcrest Road, San Mateo. Comment
  CAS-BOT-BC148982  Bromus carinatus var. carinatus George Oberlander 1950-4-22 753 San Mateo San Francisco Watershed Reserve. San Andreas Valley. Comment
  CAS-BOT-BC148993  Bromus carinatus var. carinatus John H. Thomas 1974-5-9 17331 San Mateo San Pedro Valley. Northern part of county, inland from Pacifica. 152 Comment
  CAS-BOT-BC149017  Bromus carinatus var. carinatus E. McClintock; Phillip Wheeler 1965-5-23 s.n. San Mateo San Bruno Mountain. Slope below Nike Station. Comment
  JROH4904  Bromus carinatus var. carinatus W. Lennihan 1990-4-4 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Going north on fire road from Goya, before serpentine, 40 yards to right up small hill, middle of oaks, 50 yds from turn by blue oaks. Comment
  CAS-BOT-BC183616  Bromus carinatus var. marginatus Peter Rubtzoff 1976-5-22 8548 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  CAS-BOT-BC148770  Bromus carinatus var. marginatus W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Mountain Peninsula. Hils east of Salida Valley. Comment
  UC1537360  Bromus carinatus var. maritimus Gordon H. True Jr. 1937-4-3 621 San Mateo near coast of Salada Beach 15 Comment
  CDA31079  Bromus catharticus Robin Breckenridge, K. Filippini 2010-2-17 PDR# 1463753 San Mateo Pescadero: Bean Hollow Road (across from Bay Flower Company). 0 Comment
  CAS-BOT-BC155721  Bromus diandrus Margaret Barry 1937-5-8 29 San Mateo Coal Mine Ridge. Comment
  CAS-BOT-BC210145  Bromus diandrus Peter Rubtzoff 1977-6-21 9056 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. East Fork Colma Creek Canyon area. Comment
  UCSC007723  Bromus diandrus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC155133  Bromus hordeaceus W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Mountain Peninsula. Top of Sneath's Ranch Hill near Millbrae. Comment
  CAS-BOT-BC227626  Bromus hordeaceus Peter Rubtzoff 1976-6-13 8634 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  JROH4926  Bromus hordeaceus John Hunter Thomas 1985-5-22 23673 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4935  Bromus laevipes John Hunter Thomas 1983-6-29 22711 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4938  Bromus laevipes W. Lennihan 1990-4-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Eastern draw, 40 yards down. Comment
  JROH4946  Bromus madritensis subsp. madritensis John Rawlings 2013-4-14 1150 A San Mateo Jasper Ridge Biological Preserve, Stanford University; uphill from Trail 14 about 25 yards from the Rd E intersection 112 Comment
  SEINET3921866  Bromus marginatus Robert A. Norris 1984-3-21 4656 San Mateo Blue Blossom Hills, San Mateo Mts., CA.; 0 366 Comment
  CAS-BOT-BC161749  Bromus rubens Fred Hemphill 1973-4-22 787 San Mateo San Carlos. Area north of Malabar Road and Melendy Drive. 207 Comment
  JROH4966  Bromus tectorum John Hunter Thomas 1983-7-7 22827 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near edge of lake below Searsville Lab Comment
  CAS-BOT-BC185397  Bromus vulgaris L. R. Abrams 1915-6-14 5562 San Mateo Kings Mountain Road. Comment
  CAS-BOT-BC233705  Buddleja davidii J. H. Thomas 1958-6-26 7288 San Mateo Along Skyline Blvd., about 0.3 miles north of Pulgas water temple. 91 Comment
  UC144260  Cakile edentula Copeland 1903-6-5 3319 San Mateo Montara Point; Pacific Coast, Montara Point Comment
  SD129649  Cakile maritima Donald G. Nelson 1938-7-28 581 San Mateo Moss Beach Comment
  UC964761  Cakile maritima Herbert L. Mason 1944-3-17 San Mateo Moss Beach Comment
  RSA26885  Cakile maritima R. C. Rollins 1941-7-19 2962 San Mateo Half Moon Bay. Comment
  UCSC004915  Cakile maritima Monica Larenas 1985-6-1 19 San Mateo Hwy 1, 0.5 mi S of Pescadero State Beach Comment
  CAS-BOT-BC36949  Cakile maritima var. maritima John H. Thomas 1963-5-20 10116 San Mateo Ano Nuevo Island about one half mile off shore and about 20 mile northwest of Santa Cruz. Comment
  RSA128368  Cakile maritima var. maritima P. H. Raven 1950-4-30 1965 San Mateo Montara. Comment
  CAS-BOT-BC36952  Cakile maritima var. maritima Betty J. Hammerly 1942-6-15 439 San Mateo Ocean bluffs near mouth of Pescadero Creek. Comment
  CAS-BOT-BC36954  Cakile maritima var. maritima Reed Clark Rollins 1942-11-4 3032 San Mateo Miramar Beach, about 5 miles north of Half Moon Bay. Comment
  CAS-BOT-BC36962  Cakile maritima var. maritima Daniel Cohen 1953-5-9 94 San Mateo Near mouth of Pescadero Creek. Comment
  CAS-BOT-BC36964  Cakile maritima var. maritima Otto M. Sokol 1953-5-9 87 San Mateo Just north of Pescadero Creek on coast road. Comment
  JROH4972  Calamagrostis koelerioides John H. Thomas 1962-7-15 9913 San Mateo Jasper Ridge Biological Preserve, Stanford University. Oak woodland near northern end of ridge Comment
  HSC9414  Calamagrostis nutkaensis C. B. Wolf 1927-6-4 San Mateo S of Pescadero Comment
  UC1131351  Calamagrostis nutkaensis H. S. Yates 1935-5-8 5215 San Mateo 2 mi s Pescadero; Santa Cruz Quadrangle Comment
  JEPS121454  Calandrinia ciliata Adam C. Schneider with C. Matt Guilliams 2013-2-2 190 San Mateo Crystal Springs Reservoir, between power transmission lines and Interstate 280. Comment
  CAS-BOT-BC167301  California macrophylla W. R. Dudley 1896-4-17 s.n. San Mateo Pescadero Comment
  JROH1642  Callitriche marginata Paul Heiple 2010-4-5 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; along side of Rd E Comment
  JEPS67908  Callitriche trochlearis L. R. Heckard and J. H. Thomas 1972-4-16 2891 San Mateo ca 1.5 mi s Pulgas Water Temple (along Old Canada road (private), sw of Upper Crystal Springs Reservoir) 121 Comment
  JROH4604  Calochortus albus John H. Thomas 1976-5-26 18152 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC72477  Calochortus albus Milo S. Baker May 1904 San Mateo near Burlingame Comment
  SEINET12045792  Calochortus albus L. S. Rose 1935-1 35214 San Mateo 9 mi W of Stanford University Comment
  UC648400  Calochortus albus Marion Ownbey and Ruth P. Ownbey 1938-7-7 1698 San Mateo 3 mi w Woodside; Santa Cruz Mts. Comment
  JROH4617  Calochortus argillosus John H. Thomas 1961-6-14 9539 San Mateo Jasper Ridge Biological Preserve, Stanford University; in "parking area" at Searsville end Comment
  JROH4635  Calochortus luteus John H. Thomas 1975-6-5 17941 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack on serpentine and non-serpentine soils Comment
  CAS-BOT-BC491990  Calochortus luteus Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  UC729636  Calochortus tolmiei Carl B. Wolf 1929-5-22 3722 San Mateo near La Honda grade; Santa Cruz Mts. 182 Comment
  CAS-BOT-BC496830  Calochortus tolmiei David D. Keck 1932-5-11 1496 San Mateo Above Woodside on La Honda road, east slope of Santa Cruz Mtn. Comment
  UC423011  Calochortus umbellatus J. Burtt Davy 1893-6-17 795 San Mateo Belmont Comment
  JROH573  Calycadenia multiglandulosa John Hunter Thomas 1987-5-5 24252 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA130963  Calystegia purpurata Josephine Randall 1907-7-24 105 San Mateo Near Crystal Springs Lake. Comment
  UC942937  Calystegia purpurata Lewis S. Rose 1950-5-20 50141 San Mateo hills w Redwood City (Emerald Lake Region); , w of Redwood City 243 Comment
  RSA296719  Calystegia purpurata Clark L. Miller 1978-6-15 1 -59 San Mateo Collected off old hwy. 1, approx. 4 miles south of Half Moon Bay. Comment
  RSA92811  Calystegia purpurata P. H. Raven 1950-4-6 1774 San Mateo Colma Canyon, San Bruno Mts. 183 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-BC224662  Calystegia purpurata subsp. purpurata Fred Hemphill 1973-5-6 764 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 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
  RSA60634  Calystegia soldanella I. L. Wiggins 1950-5-20 12351 San Mateo Pescadero Beach Comment
  CAS-BOT-BC224347  Calystegia subacaulis subsp. subacaulis A. A. Heller 1907-5-23 8557 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  JROH1844  Calystegia subacaulis subsp. subacaulis John H. Thomas 1957-4-16 6652 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA130597  Camissonia ovata Lucile Roush 1918-3-31 s.n. San Mateo Santa Cruz Peninsula; foot of Sierra Morena Comment
  RSA125833  Camissonia ovata G. R. Campbell 1956-4-4 3 San Mateo La Honda Rd (from Hwy 5) to Woodside, 3 mi from Mt Home-Portola road. 610 Comment
  CAS-BOT-BC160326  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Dr. Barton W. Evermann 1924-6-22 s.n. San Mateo [Ano] Ano Nuevo Island Comment
  SD38657  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Edith A. Purer 1934-8-14 5916 San Mateo Half Moon Bay. Comment
  RSA18502  Campanula prenanthoides C. B. Wolf 1927-7-14 618 San Mateo Summit of Kings Mountain Rd. Comment
  SEINET10463048  Campanula prenanthoides David D. Keck 1934-7-7 Keck 2929 San Mateo Kings Mountain, west of summit 610 Comment
  SEINET10905906  Campanula prenanthoides Wicksten 1971-7-7 WICKSTEN 155 San Mateo HUDDART PARK, ROAD CUT ALONG RD TO FAMILY CAMPGROUND Comment
  CAS-BOT-BC37159  Capsella bursa-pastoris John H. Thomas 1965-4-29 10601 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  JROH1477  Capsella bursa-pastoris John Hunter Thomas 1984-4-10 23284 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC37662  Cardamine californica W. R. Dudley 1903-5-9 s.n. San Mateo Santa Cruz Peninsula. Iverson's near Peters Creek. Comment
  CAS-BOT-BC37664  Cardamine californica Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountains. Cable Ravine. Comment
  CAS-BOT-BC37685  Cardamine californica David D. Keck 1393 San Mateo Santa Cruz Mountains. La Honda road above Searsville Lake. Comment
  CAS-BOT-BC37689  Cardamine californica Javier Penalosa 1963-3-9 2698 San Mateo San Bruno Mountains. Ravine 0.5 mile east of 1314 foot summit. 304 Comment
  CAS-BOT-BC37678  Cardamine californica LeRoy Ellsworth Detling 1935-4-3 1530 San Mateo Redwoods, La Honda Grade, 2 miles west of Skyline Boulevard Intersection. Comment
  JROH3903  Cardamine californica D. D. Davis 1903-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5542289  Cardamine californica var. integrifolia H. S. Gentry 1931-1 16 San Mateo 1.5 miles W of San Mateo, Half-Moon Bay road. Comment
  SEINET12004997  Cardamine integrifolia Patterson 1907-1 s.n. San Mateo Kings Mt., Santa Cruz Mountain peninsula Comment
  JROH1489  Cardamine oligosperma Roxana Stinchfield 1914-2-28 155 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  JROH1492  Cardamine oligosperma John H. Thomas 1968-3-17 14182 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1493  Cardamine oligosperma John H. Thomas 1968-5-17 14182 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1500  Cardamine oligosperma John Hunter Thomas 1985-4-10 23515 San Mateo Jasper Ridge Biological Preserve, Stanford University; Whiskey Hill gate Comment
  UC1056982  Cardamine oligosperma H. L. Mason 1927-4-23 3695 San Mateo Pescadero Creek near Bloomquist Mill; Pescadero Creek near Bloomquist Mill Comment
  UC1301005  Cardamine oligosperma Helen K. Sharsmith 1963-3-23 5247 San Mateo Alpine Creek Canyon San Francisco Bay Region, Santa Cruz Mountains, Alpine Creek 243 Comment
  UCD166155  Carex Jack Major; M. Forde and S. Bamberg 1962-4-3 739 San Mateo Above Coastways Ranch on Finney Creek. (Exact location unknown. Coordinates estimated by label maker). Comment
  CAS-BOT-BC18186  Carex W. R. Dudley 1899-4-13 s.n. San Mateo San Francisquito Creek below Cedro Cottage Bridge, Stanford University. Comment
  CAS-BOT-BC18187  Carex Roxana S. Ferris 1918-3-31 753 San Mateo Edge of Helvetio (Mud) Lake, Coal Mine Ridge. Comment
  UCSC006296  Carex Randall Morgan 2001-10-19 3778 San Mateo Half Moon Bay, Moist flat on RMC Lonestar property, upper San Vincente Ck watershed Comment
  NY25691  Carex amplifolia L. Abrams 1915-6-14 5563 San Mateo King's Mountain Road Comment
  SEINET10585498  Carex aquatilis Adolph D. E. Elmer Elmer 4428 San Mateo Crystal Springs Lake. Comment
  SEINET7484300 Image available Carex barbarae Peter F. Zika 2010-1 24798 San Mateo Pescadero Road, c. 1 mile SE of Route 1 10 Comment
  CAS-BOT-BC19545  Carex bolanderi W. R. Dudley 1899-5-14 s.n. San Mateo Sant Cruz Mountain Peninsula. Ravine west of Upper San Mateo Creek. Comment
  CAS-BOT-BC18922  Carex densa Alice Eastwood; John Thomas Howell 1937-5-7 4328 San Mateo Visatacion Valley. Comment
  CAS-BOT-BC18924  Carex densa John Thomas Howell 1938-5-1 13786 San Mateo Near South San Francisco. Comment
  CAS-BOT-BC18940  Carex densa W. R. Dudley 1910-5-26 s.n. San Mateo Santa Cruz Mountain Peninsula. Coal Mine Ridge, near Black Mountain. Comment
  JROH4329  Carex densa John H. Thomas 1967-6-1 12946 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4331  Carex densa John Hunter Thomas 1977-6-16 18738 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC18943  Carex densa W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Mountain Peninsula. Above keepers house, San Andreas Reservoir. Comment
  RSA783464  Carex densa Peter Rubtzoff 1975-5-21 7976 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction Comment
  UCD140266  Carex densa Alice Eastwood; John Thomas Howell, J. W. Stacey 1938-4-24 5246 San Mateo Half Moon Bay. Comment
  RSA304145  Carex dudleyi L. S. Rose 1937-4-30 37243 San Mateo Brisbane. 6 Comment
  SEINET7560149 Image available Carex gracilior Charles Piper Smith 1905-4-26 874 San Mateo Portola Searsville Lake. 98 Comment
  CAS-BOT-BC146610  Carex gynodynama W. R. Dudley 1896-4-17 s.n. San Mateo Pebble Beach Pasture, Pescadero Comment
  JROH4349  Carex harfordii John Rawlings 2009-5-13 1055 San Mateo Jasper Ridge Biological Preserve, Stanford University. Just beyond NE terminus of Leonard's Bridge, a large clump on the SE verge of the trail. 107 Comment
  JROH4353  Carex nudata W. Lennihan 1989-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Before low-flow crossing, edge of San Francisquito Creek. also in middle of creek. Comment
  CAS-BOT-BC176409  Carex obnupta Peter Rubtzoff 1978-5-18 9174 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  SEINET10711654  Carex obnupta Lewis S. Rose 1936-6-10 Rose 36317 San Mateo Chinese Cemetery, E. of Baden. 61 Comment
  CHSC109976  Carex pendula John Rawlings 2011-7-3 San Mateo 200 m E of junction of Purisima Creek Trail and path to Judson Redwood Grove, about 0.5 air miles E of Higgins Canyon Road, Purisima Creek Redwoods Open Space Preserve, W slope of Santa Cruz Mountains, San Francisco Bay (SnFrB). 165 Comment
Read comments
Jan 26 2018
  CAS-BOT-BC117403  Carex senta W. L. Scofield 1908-4-2 s.n. San Mateo Near Roble bridge, Stanford University. Comment
  SJSU15817  Carex serratodens John Rawlings, Ken Hickman 2016-7-21 1902 San Mateo Serpentine seep area (Fountain thistle seep) up-slope from the Hwy 92 west onramp to Hwy 280 north; down-slope from San Francisco Watershed fence line 122 Comment
  CAS-BOT-BC117640  Carex serratodens Joseph Whipple Congdon 1901-7-28 s.n. San Mateo Spring Valley. Comment
  CAS-BOT-BC539276  Carex subbracteata John Rawlings; Sara Timby; Toni Corelli 2016-4-23 1731 A San Mateo Along Bean HOllow bluff trail, W of Hwy 1, S of Pescadero 8 Comment
  CAS-BOT-BC116817  Carex subbracteata var. subbracteata John Thomas Howell 1938-5-1 13778 San Mateo Near South San Francisco Comment
  CAS-BOT-BC116835  Carex subbracteata var. subbracteata J. H. Thomas 1959-4-4 7657 San Mateo Ca 0.7 mi S of Gazos Creek. Ca 6.5 mi southward from Pescadero. 45 Comment
  CAS-BOT-BC116829  Carex subbracteata var. subbracteata W. R. Dudley 1906-6-10 s.n. San Mateo Cahill Ridge, 100 yds N of Spanish Town Road. Comment
  CAS-BOT-BC116833  Carex subbracteata var. subbracteata Roxana S. Ferris 1921-5-29 5197 San Mateo Roadside ditch near Arroyo de los Frijoles. Comment
  CAS-BOT-BC115507  Carex tumulicola George Thomas Oberlander 1950-5-28 967 San Mateo Marsh, Pilarcitos Lake. Comment
  CAS-BOT-BC115513  Carex tumulicola W. R. Dudley 1898-4-24 s.n. San Mateo El Corte Madera Comment
  JROH4374  Carex tumulicola John Rawlings 2011-4-19 1084 San Mateo Jasper Ridge Biological Preserve, Stanford University. Creekside edge of barrow pit a few yards south of NE terminus of Leonard's Bridge. 108 Comment
  CAS-BOT-BC230109  Carpobrotus chilensis Dr. Barton W. Evermann 1924-6-22 s.n. San Mateo Ano Nuevo Island Comment
  CHSC20700  Carpobrotus edulis Robert A. Schlising 1963-2-23 2433 San Mateo 21 miles north of Davenport along Highway 1. Comment
  CAS-BOT-BC249183  Castilleja affinis D. E. Breedlove 1974-5-13 36215 San Mateo San Pedro Valley Park, Pacifica 152 Comment
  CAS-BOT-BC249185  Castilleja affinis James McMurphy 1907-5-19 s.n. San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC249192  Castilleja affinis David D. Keck 1940-5-15 5037 San Mateo Upper Crystal Springs Lake, east side 100 Comment
  RSA120823  Castilleja affinis S. S. Tillett, I. Sternback 1956-6-25 550 San Mateo Along Patterson Creek, on Middleton property just above entrance to Portola State beach. 366 Comment
  RSA505385  Castilleja affinis R. C. Bacigalupi, G. Thomas Robbins 1955-8-4 5443 San Mateo Just opposite Thornton Beach, east of Highway No. 1 (Calif. State). 61 Comment
  SD234175  Castilleja affinis Virginia Pinkus Ryder 1965-6-13 436 San Mateo San Bruno Mtn. above Olivet Cemetary. Growing in sun on dry W. slope. 121 Comment
  JROH3952  Castilleja affinis subsp. affinis John Hunter Thomas 1986-4-18 23959 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD88447  Castilleja ambigua subsp. ambigua Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay Comment
  UC103163  Castilleja ambigua subsp. ambigua Katharine Brandegee 1905-6-20 San Mateo near Half Moon Bay; Moss Beach Comment
  UC886454  Castilleja ambigua subsp. ambigua Alice Eastwood 1915-6-13 4721 San Mateo Granada Comment
  CHSC1814  Castilleja densiflora subsp. densiflora V. Holt 1943-4-21 San Mateo Comment
  JROH3981  Castilleja densiflora subsp. densiflora John Hunter Thomas 1981-4-23 20472 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB18232  Castilleja densiflora subsp. densiflora Muirhead, M. 1964-4-17 San Mateo Crocker Estate, Hillsborough 76 Comment
  SEINET13772767  Castilleja exserta A. A. Heller 1906-1 8381 San Mateo Near Ocean View, San Francisco. Comment
  SJSU15800  Castilleja exserta subsp. latifolia Toni Corelli 2010-6-6 680 San Mateo Montara State Beach. Bluff top west of Highway 1 14 Comment
  CAS-BOT-BC243830  Castilleja latifolia John H. Thomas 1965-4-29 10613 San Mateo San Bruno Mountainin northern part of county 396 Comment
  CAS-BOT-BC243841  Castilleja latifolia John Thomas Howell 1933-4-9 10969 San Mateo Coastal hillside between Pescadero and Pigeon Pt. Comment
  SEINET12288718  Castilleja latifolia M. T. Doutt 1931-1 235 San Mateo S of San Francisco Comment
  OBI9362  Castilleja rubicundula Lewis S. Rose 1966-5-2 66034 San Mateo Emerald Lake, W of Redwood City 91 Comment
  JROH3990  Castilleja rubicundula subsp. lithospermoides James Newman 1951-4-21 10 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  JROH4005  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1982-4-30 20879 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4008  Castilleja rubicundula subsp. lithospermoides John Hunter Thomas 1986-5-8 24024 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1141005  Castilleja subinclusa subsp. franciscana Lawrence Beane 1949-6-2 455 San Mateo between La Honda and Pescadero Comment
  SJSU5850  Castilleja subinclusa subsp. franciscana R. E. Gill 1970-4-16 San Mateo La Honda Rd c. 4 mi E of junction with Skyline Blvd Comment
  CAS-BOT-BC32580  Castilleja wightii Adolph Daniel Edward Elmer 1903-7-1 4761 San Mateo San Pedro Comment
  JEPS15591  Castilleja wightii Rimo Bacigalupi with J. R. Sweeney 1954-8-3 4735 San Mateo along upper slopes Edgemar Road (nw San Mateo County) 100 Comment
  JEPS19719  Castilleja wightii Peter H. Raven 1957-6-24 10965 San Mateo just s Linda Mar Comment
  JEPS29419  Castilleja wightii L. R. Heckard 1961-7-16 1267 San Mateo near San Bruno Mt. summit; San Bruno Mt. 304 Comment
  JEPS34314  Castilleja wightii L. R. Heckard, and Rimo Bacigalupi 1963-7-2 1329 A San Mateo just e Adobe Ave. in San Pedro Valley (grade of old county road over San Pedro Mt); San Pedro Valley, San Pedro Mt. 60 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
  JEPS103881  Castilleja wightii T. I. Chuang and F. M. Chuang 1991-7-1 7846 San Mateo 1.1 mile N or Montara Comment
  POM20827  Castilleja wightii Katherine Brandegee 1917-7-15 s.n. San Mateo Moss Beach between the station and the bluffs. Comment
  RSA523428  Castilleja wightii L. R. Heckard, R. C. Bacigalupi 1963-7-2 1328 San Mateo Near home of John gay. Slopes above S. Fk. of San Pedro Creek. SE of town of San Pedro Valley. 152 Comment
  CAS-BOT-BC39385  Caulanthus lasiophyllus Wilhelm Nikolaus Suksdorf 1913-6-23 258 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC39389  Caulanthus lasiophyllus Ned Cahill 1974-4-29 170 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  CAS-BOT-BC47931  Ceanothus Fred Hemphill 1973-4-15 675 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC48306  Ceanothus cuneatus A. D. E. Elmer 1903-3-1 4578 San Mateo Portola Comment
  CAS-BOT-BC48307  Ceanothus cuneatus Volney Rattan 1884-3-1 s.n. San Mateo Rattan Ranch, Woodside Comment
  JROH3519  Ceanothus cuneatus var. cuneatus Anne Constant 1955-4-8 4 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG116527  Ceanothus integerrimus D. H. Wilken with E. Painter 2003-5-10 16067 San Mateo Skyline Blvd (St Hwy 35), near head of La Honda Crk, 0.8 linear km NE of Allen Lookout, Santa Cruz Mtns 610 Comment
  CAS-BOT-BC51594  Ceanothus oliganthus var. sorediatus A. D. E. Elmer 1903-5-1 4479 San Mateo Portola Comment
  JROH3532  Ceanothus oliganthus var. sorediatus John H. Thomas 1978-4-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM282999  Ceanothus oliganthus var. sorediatus Lyman Benson 1928-4-12 75 San Mateo Standord University. Santa Cruz. Watershed San Francisquito Creek. 46 Comment
Read comments
Oct 24 2014
  UC1206472  Ceanothus oliganthus var. sorediatus Le Roy Abrams 1902-4-5 2307 San Mateo Searsville Comment
  UC311387  Ceanothus oliganthus var. sorediatus A. D. E. Elmer May 1903 4479 San Mateo Portola Comment
  UC762253  Ceanothus oliganthus var. sorediatus R. F. Hoover 1941-5-20 5115 San Mateo Skyline Road sw Black Mt.; sw of Black Mt. Comment
  POM222807  Ceanothus oliganthus var. sorediatus S. S. Berry 1909-3-31 s.n. San Mateo Hill slope near the Hermit. 152 Comment
  POM301652  Ceanothus oliganthus var. sorediatus Carl B. Wolf 1941-7-31 11113 San Mateo Santa Cruz Mts, 1 miles E of summit of La Honda Grade. 396 Comment
  CAS-BOT-BC51237  Ceanothus papillosus David D. Keck 1932-5-11 1774 San Mateo East side of Kings Mountain, on Kings Mountain Road 502 Comment
  CAS-BOT-BC51244  Ceanothus papillosus R. Hoffough 1929-5-8 s.n. San Mateo King's Mountain Comment
  CAS-BOT-BC52291  Ceanothus thyrsiflorus Ira L. Wiggins 1925-5-24 1744 San Mateo Along county road from Pescadero to Pebble Beach Comment
  CAS-BOT-BC52301  Ceanothus thyrsiflorus A. D. E. Elmer 1903-6-1 4603 San Mateo Lake San Andreas Comment
  UC79917  Ceanothus thyrsiflorus Alice Eastwood April 1893 San Mateo San Bruno Range Comment
  SBBG115374  Ceanothus thyrsiflorus var. thyrsiflorus R. Gankin 1950-7-9 21 San Mateo 1 mi W of Pescadero toward St Hwy 1 15 Comment
  JROH588  Centaurea calcitrapa D. E. Breedlove 1971-5-11 19335 San Mateo Jasper Ridge Biological Preserve, Stanford University; at Pinon Road along fence Comment
  POM351492  Centaurea calcitrapa Edith A. Purer 1933-8-13 18173 San Mateo Near Belmont Comment
  UC91552  Centaurea calcitrapa J. W. Congdon 1901-7-27 San Mateo San Mateo Comment
  SD30655  Centaurea calcitrapa Edith A. Purer 1933-8-13 5423 San Mateo In an open field, Santa Clara Valley, near Belmont. Comment
  SEINET11860703  Centaurea calcitrapa Unknown 1933-8-13 10506 San Mateo Belmont Comment
  CDA7169  Centaurea melitensis D. G. Kelch 2002-5-13 s.n. San Mateo Cahill Ridge. 0 Comment
  UC306679  Centaurea melitensis A. D. E. Elmer 1903-6-1 4281 San Mateo Crystal Springs Lake Comment
  JROH613  Centaurea solstitialis John Hunter Thomas 1992-7-24 25387 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near boat ramp Comment
  SEINET2030222 Image available Centromadia pungens L. S. Rose 1941-10-10 41464 San Mateo Fields along Bayshore Boulevard, San Mateo 3 Comment
  SEINET3385989 Image available Centromadia pungens Lewis S. Rose 1938-8-18 38231 San Mateo Open fields. 6 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-BC384962  Cerastium arvense A. A. Heller 1907-4-20 8446 San Mateo Near Lake Merced Comment
  JROH1691  Cerastium glomeratum John H. Thomas 1968-3-17 14191 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH149  Ceratophyllum demersum Alan Grundman 1976-5-1 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH151  Ceratophyllum demersum John Hunter Thomas 1981-7-12 20712 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC400166  Ceratophyllum demersum W. R. Dudley 1909-11-8 s.n. San Mateo Santa Cruz Mountain Peninsula. Hallidie Ranch, Portola Valley Comment
  JROH5927  Cercocarpus betuloides var. betuloides L. Fleycher 1986-2-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; east of Searsville Lake. Comment
  UCSC007731  Chenopodium californicum Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  POM158031  Chenopodium macrospermum var. farinosum L. R. Abrams 1903-9-26 4018 San Mateo Border of Bay back of Menlo Park. Comment
  POM279724  Chenopodium murale Lyman Benson 1937-6-27 8394 San Mateo Moss Beach. 3 Comment
  RSA181237  Chenopodium murale John H. Thomas 1963-5-20 10106 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  CAS-BOT-BC497727  Chlorogalum pomeridianum John H. Thomas 1963-5-20 10127 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz Comment
  CAS-BOT-BC497728  Chlorogalum pomeridianum Hester R. Davis 1920-6-2 199 San Mateo Serpentine Creek and Redwood City Comment
  JROH4646  Chlorogalum pomeridianum var. pomeridianum John H. Thomas 1973-6-10 16821 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC32865  Chorizanthe cuspidata var. marginata Adolph Daniel Edward Elmer 1903-5-1 4828 San Mateo San Pedro Comment
  RSA489244  Chorizanthe membranacea C. Rose Broome, Cristalyn M. Cagle 1978-6-17 2166 San Mateo Nacimiento - Ferguson Road 3 miles east of its junction with California Highway 1, and 4.1 miles west of Nacimiento Guard Station, Los Padres National Forest 427 Comment
  RSA476617  Chrysolepis chrysophylla E. A. Purer 1932-7-18 4001 San Mateo King's Mountain. Comment
  UC1135209  Chrysolepis chrysophylla var. chrysophylla C. M. Belshaw 1935-1-25 1461 San Mateo 4.5 mi w Woodside (on Kings Mt road); Santa Cruz Quad. 609 Comment
  CAS-BOT-BC36402  Chrysolepis chrysophylla var. minor David D. Keck 1934-7-7 2926 San Mateo Kings Mountain, just east of summit 548 Comment
  JEPS78658  Chrysolepis chrysophylla var. minor Edward Lee 1936-1-26 1742 San Mateo between Purisima Creek and Tunitas Creek (near summit) 609 Comment
  SJSU114  Chrysolepis chrysophylla var. minor C. D. Duncan 1929-9-27 San Mateo Kings Mt Comment
  CAS-BOT-BC36404  Chrysolepis chrysophylla var. minor Walter Knight 1964-9-14 830 San Mateo Forest of scores of sub trees ca. 4 m. [hi] and shorter on NW side of Peak Mt. summit - Montara Range Comment
  JROH2584  Cicendia quadrangularis John H. Thomas 1966-4-6 11554 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR240607  Cirsium T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3529 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  CAS-BOT-BC277887  Cirsium brevistylum David D. Keck 1934-7-7 2932 San Mateo Kings Mountain, west of summit 579 Comment
  CAS-BOT-BC277888  Cirsium brevistylum Phillip C. Wheeler 1965-5-11 s.n. San Mateo San Bruno Mountain. Southwest ravine below NBC Towers Comment
  CAS-BOT-BC277894  Cirsium brevistylum Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain. Near parking lot on top of mountain Comment
  RSA18503  Cirsium brevistylum C. B. Wolf 1927-7-14 617 San Mateo Summit of Kings Mt. Comment
  CDA1229  Cirsium fontinale var. fontinale T. C. Fuller 1970-5-13 19532 -A San Mateo East side of I-280, 100 yds. s. of junction Hwy 92 w. to Half Moon Bay. E slope above Crystal Springs Reservoir. Comment
  UC1416530  Cirsium fontinale var. fontinale George E. Pilz 1971-5-9 616 San Mateo e side of Crystal Springs Reservoir, Interstate 280 has cut through the colony Crystal Springs Reservoir 121 Comment
  UC175461  Cirsium fontinale var. fontinale W. N. Suksdorf 1913-6-22 113 San Mateo Crystal Springs Lake Comment
  RSA0008391  Cirsium fontinale var. fontinale A. D. E. Elmer 1903-06 4292 San Mateo Crystal Springs Lake. Comment
  CAS-BOT-BC280132  Cirsium occidentale var. venustum A. D. E. Elmer 1903-6-1 4259 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC280509  Cirsium quercetorum John H. Thomas 1961-5-14 9378 San Mateo Just north of dam on San Mateo Creek 121 Comment
  CAS-BOT-BC280523  Cirsium quercetorum A. D. E. Elmer 1903-6-1 4290 San Mateo Crystal Springs Lake Comment
  CDA1534  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
  CAS-BOT-BC285862  Cirsium vulgare Otto T. Solbrig 1958-8-3 2920 San Mateo On Highway 5, Crystal Spring Lake 30 Comment
  RSA155840  Cirsium vulgare Peter H. Raven 1961-8-24 16585 San Mateo East side of Crystal Springs Lake Comment
  JROH3040  Clarkia John Hunter Thomas 1986-6-7 24080 San Mateo Jasper Ridge Biological Preserve, Stanford University 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-BC163967  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1894-7-30 s.n. San Mateo Near La Honda Comment
  UC1536827  Clarkia purpurea subsp. quadrivulnera Gordon H. True Jr. 1936-6-14 504 San Mateo canyon s Salada Beach 304 Comment
  CAS-BOT-BC163968  Clarkia purpurea subsp. quadrivulnera W. R. Dudley 1903-5-31 s.n. San Mateo Alpine Road, Black Mt., Santa Cruz Range Comment
  CAS-BOT-BC163978  Clarkia purpurea subsp. quadrivulnera Elizabeth McClintock; Phillip Wheeler 1967-5-14 s.n. San Mateo East side of mountain, above Harold Ave., Brisbane. Grassy slope above Philip Wheeler's house Comment
  CAS-BOT-BC165142  Clarkia rubicunda Alice Eastwood; John Thomas Howell 1938-6-26 6067 San Mateo Open ground avove La Honda Comment
  CAS-BOT-BC165157  Clarkia rubicunda Phipps 1922-7-1 s.n. San Mateo Tunitas Creek Comment
  CAS-BOT-BC165158  Clarkia rubicunda Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  CAS-BOT-BC165165  Clarkia rubicunda Peter H. Raven 1957-6-24 10972 San Mateo North of the light house, Pigeon Point Comment
  CAS-BOT-BC165173  Clarkia rubicunda W. R. Dudley 1902-9-21 s.n. San Mateo Near Crystal Springs Reservoir Comment
  CHSC27729  Clarkia rubicunda Coleta Lawler 1978-6-11 295 San Mateo W of Saratoga and SW of Los Altos; on Alpine Road, 0.5 miles southwest of State Hwy 35 (Skyline Blvd); along road cut. 304 Comment
  JROH3020  Clarkia rubicunda John H. Thomas 1974-6-30 17457 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC114010  Clarkia rubicunda Katharine Brandegee 1908-7-26 San Mateo near Half Moon Bay; Moss Beach Comment
  UC1279894  Clarkia rubicunda Peter H. Raven 1957-6-20 10955 San Mateo hills above se end Lake San Andreas Comment
  UCR253362  Clarkia rubicunda R. F. Thorne, Percy C. Everett 1965-8-1 35076 San Mateo 21.5 miles south of Golden Gate Bridge 69 Comment
  CAS-BOT-BC165136  Clarkia rubicunda Peter H. Raven 1957-6-20 10955 San Mateo Above south-east end of Lake San Andreas Comment
  CAS-BOT-BC165163  Clarkia rubicunda Peter H. Raven 1957-6-30 11012 San Mateo Near bridge over Tunitas Creek along state Highway 1 Comment
  HSC23947  Clarkia rubicunda Mary Katherine Wicksten 1971-7-19 175 San Mateo Huddart Park Comment
  UC1279922  Clarkia rubicunda Peter H. Raven 1957-6-30 11011 San Mateo 1.8 mi s Sharp Park (on State Highway 1) Comment
  CAS-BOT-BC165605  Clarkia unguiculata Kent E. Holsinger 1979-5-16 10 b San Mateo Jasper Ridge Biological Preserve; 5 mi. SW of Stanford Univ. campus, on south facing slope of Searsville Lake 109 Comment
  CAS-BOT-BC439290  Claytonia exigua subsp. exigua H. A. Dutton 1900-2-25 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  CAS-BOT-BC439593  Claytonia parviflora subsp. parviflora H. A. Dutton 1900-2-11 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  JROH3346  Claytonia perfoliata subsp. perfoliata John H. Thomas 1967-4-28 12725 San Mateo Jasper Ridge Biological Preserve, Stanford University; near "Oaks" Comment
  POM151213  Clematis lasiantha C. F. Baker 1902-4-12 499 San Mateo La Honda. Comment
  UC9063  Clematis lasiantha J. Burtt Davy 1895-4-20 1034 San Mateo Lake San Andreas Comment
  SEINET12099146  Clematis lasiantha J. H. Thomas 1959-1 7666 San Mateo Jasper Ridge, 5 mi SW of Palo Alto 152 Comment
  JROH2881  Clinopodium douglasii John Hunter Thomas 1986-6-7 24087 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD164461  Clinopodium douglasii Peter Rubtzoff 1977-6-21 9064 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  UC306644  Clintonia andrewsiana A. D. E. Elmer May, 1903 4331 San Mateo Butano Creek Comment
  CAS-BOT-BC499402  Clintonia andrewsiana D. D. Davis 1903-5-2 s.n. San Mateo Near La Hondas Comment
  RSA3929  Clintonia andrewsiana W. R. Dudley 1895-6-8 s.n. San Mateo Road near Alpine School House, Black Mtn. Comment
  SEINET12044201  Clintonia andrewsiana L. S. Rose 1933-1 33254 San Mateo Kings Mt Comment
  CAS-BOT-BC240933  Collinsia multicolor Walter Knight; Irja Knight 1965-4-4 1014 San Mateo San Bruno Mountain. Bitter Cherry Ravine Comment
  CHSC56998  Collinsia multicolor Josephine Boyd 1988-5-11 San Mateo Along the old stagecoach roal parallel to Crystal Springs Road ca 250 ft sw of its jct. with Polhemus Road in San Mateo. 83 Comment
  UC26608  Collinsia multicolor J. Burtt Davy 1895-4-20 1025 San Mateo Millbrae Comment
  CAS-BOT-BC240929  Collinsia multicolor W. R. Dudley 1906-5-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Hills S.W. of San Mateo Comment
  JROH4016  Collinsia sparsiflora var. collina Herbert Dengler 1963-5-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; lower edge of serp. by "up" road S.W. of Searsville Rocks Comment
  JEPS19373  Collinsia sparsiflora var. sparsiflora G. Thomas Robbins 1937-4-11 86 San Mateo near Spring Valley Lake (along rd to Woodside) Comment
  JROH3142  Collomia heterophylla John Hunter Thomas 1986-5-17 24056 San Mateo Jasper Ridge Biological Preserve, Stanford University; creek trail downstream from Rattlesnake Rock Comment
  RSA653552  Collomia heterophylla George K. Helmkamp, E. A. Helmkamp 1999-6-28 4978 San Mateo Pescadero Rd just N of Loma Mar. 107 Comment
  JROH220  Conium maculatum John Hunter Thomas 1988-6-2 24505 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old bridge Comment
  SBBG54550  Conium maculatum C. Taylor 1971-6-12 158 San Mateo corner of Harbor Blvd and Old Country Rd, Belmont Comment
  SEINET4182807 Image available Conium maculatum Robert A. Norris 1974-7-20 2117 San Mateo San Francisco, Near stream in canyon, Glen Park Recreation Center, San Miguel Hills, San Francisco, S.F. Co., Calif. Comment
  SEINET8733335 Image available Cordylanthus pilosus L. S. Rose 1941-1 41362 San Mateo Woodside 60 Comment
  JROH4027  Cordylanthus pilosus subsp. pilosus John H. Thomas 1971-8-5 16010 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS80892  Cordylanthus rigidus subsp. rigidus Monty Knudsen 1981-8-13 San Mateo Edgewood Park w of Redwood City; Edgewood Park Comment
  JROH4034  Cordylanthus rigidus subsp. rigidus Deane Bowers 1980-8-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University, outskirts just down the road from the Escobar entrance Comment
  CAS-BOT-BC101475  Corethrogyne filaginifolia J. H. Thomas 1958-6-11 7221 San Mateo About 4.3 miles due east of Belmont near Crystal Springs Reservoir 91 Comment
  CAS-BOT-BC101481  Corethrogyne filaginifolia W. R. Dudley 1896-4-6 s.n. San Mateo Near Crystal Springs Comment
  POM57992  Corethrogyne filaginifolia var. californica C. F. Baker 1902-5-10 810 San Mateo Crystal Springs Lake. Comment
  SEINET3161670  Cornus californica L. S. Rose 1939-5-5 39094 San Mateo San Mateo Canyon 46 Comment
  SEINET12136511  Cornus californica R. C. Croker 1929-1 69 San Mateo Searsville Lake Comment
  CAS-BOT-BC209818  Cornus glabrata C. B. Wolf 1931-8-20 2326 San Mateo Los Trancos Creek, 2 miles back of Stanford University, near Schenkel's Camp 91 Comment
  RSA726759  Cornus glabrata Lyman Benson 1930-5-26 2133 San Mateo Stanford University, Lake Searsville 152 Comment
  RSA54182  Cornus glabrata C. B. Wolf 1931-8-20 3870 San Mateo 3 miles west of Mayfield on road to La Honda. 91 Comment
  CAS-BOT-BC210359  Cornus sericea Elizabeth McClintock; Carlyn Halde; Walter Knight; Walter Knight 1963-6-23 s.n. San Mateo San Bruno Mountain. Lower part of Colma Canyon Comment
  SEINET12137024  Cornus sericea subsp. occidentalis J. I. McMurphy 1906-1 22 San Mateo Los Francos Creek, Santa Cruz Mts Comment
  JROH1864  Cornus sericea subsp. sericea John H. Thomas 1961-5-5 9211 San Mateo Jasper Ridge Biological Preserve, Stanford University; along San Francisquito Creek below Searsville Dam 76 Comment
  CAS-BOT-BC190041  Cortaderia jubata Phillip C. Wheeler 1965-8-14 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon. Comment
  CAS-BOT-BC190044  Cortaderia jubata J. H. Thomas 1958-9-15 7472 San Mateo 0.4 mile north of dam on San Mateo Creek along Skyline Boulevard. 91 Comment
  CDA18373  Cortaderia selloana G. D. Barbe 1978-9-26 2441 San Mateo Skylawn Memorial Park; drive from Hwy 92 into the park. 716 Comment
  CAS-BOT-BC180361  Corylus cornuta subsp. californica Josephine D. Randall 1907-6-8 113 San Mateo Portola Road. Santa Cruz Peninsula Comment
  CAS-BOT-BC180364  Corylus cornuta subsp. californica W. R. Dudley 1903-7-10 23 San Mateo Corte de Madera Canon [canyon], Santa Cruz Mts., Santa Cruz Peninsula Comment
  CAS-BOT-BC180371  Corylus cornuta subsp. californica Ira L. Wiggins 1929-3-23 3373 San Mateo Road to Mud Lake, near Stanford University Comment
  HSC3476  Corylus cornuta subsp. californica C. B. Wolf 1927-2-26 223 San Mateo On the La Honda Grade Comment
  CAS-BOT-BC180374  Corylus cornuta subsp. californica Walter Knight 1964-9-14 849 San Mateo On sandstone ridge between Peak Mt. and Highway 1 Comment
  POM166453  Corylus cornuta var. californica A. D. E. Elmer 1903-03 4536 San Mateo Kings Mountain Comment
  CAS-BOT-BC287202  Cosmos bipinnatus Prof. W. R. Dudley 1894-3-28 s.n. San Mateo Santa Cruz Mt Peninsula.l Opposite Halfmoon Bay Comment
  JEPS118180  Cotoneaster hodjingensis Dean W. Taylor 2004-6-2 19078 San Mateo San Bruno Mountain, southeast margin of the radio towers at the summit 365 Comment
  CAS-BOT-BC141552  Cotoneaster pannosus Elizabeth McClintock; Paul Reedberg 1989-9-4 s.n. San Mateo West end of industrail park - San Bruno Mountains Comment
  UC912224  Cotula coronopifolia Herbert L. Mason 1927-4-24 3707 San Mateo mouth of San Gregorio Creek Comment
  CAS-BOT-BC291464  Cotula coronopifolia John H. Thomas 1966-5-13 116112 San Mateo Near Palo Alto Yacht Harbor Comment
  CAS-BOT-BC291471  Cotula coronopifolia Margaret A. Barry 1938-5-14 254 San Mateo In Mud Lake on Coal Mine Ridge Comment
  CAS-BOT-BC427829  Crassula connata John H. Thomas 1958-3-19 7053 San Mateo East facing slope of San Bruno Mountain, just north of South San Francisco. 91 Comment
  CAS-BOT-BC427833  Crassula connata John H. Thomas 1965-4-29 10630 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  JROH1887  Crassula connata John H. Thomas 1973-3-12 16482 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3649  Crataegus laevigata Carol Zabel and Irene Brown 2003-6-15 49 San Mateo Jasper Ridge Biological Preserve, Stanford University. Hermit's cabin site. Comment
  JROH3652  Crataegus monogyna John H. Thomas 1965-4-10 10560 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3653  Crataegus monogyna John H. Thomas 1967-6-1 12972 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC291510  Crepis capillaris Josephine D. Randall 1907-6-29 66 San Mateo Portola Road, Santa Cruz Peninsula Comment
  RSA152117  Crocosmia X crocosmiiflora John H. Thomas 1961-8-27 9700 San Mateo Western end of San Bruno Mountain 244 Comment
  JROH1959  Croton setiger John H. Thomas 1974-10-26 17631 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1963  Croton setiger John Hunter Thomas 1992-7-24 25394 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1962  Croton setiger John Hunter Thomas 1988-8-21 24565 San Mateo Jasper Ridge Biological Preserve, Stanford University; along "main road" Comment
  RSA10273  Cryptantha clevelandii var. florosa H. A. Barker 1927-5-14 671 San Mateo North of Half Moon Bay. Comment
  UC78495  Cryptantha flaccida C. F. Baker 1902-4-6 468 San Mateo Crystal Springs Lake Comment
  JROH1364  Cryptantha micromeres Oz Garton 1968-5-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1379  Cryptantha microstachys John Hunter Thomas 1992-4-23 25164 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5740  Cryptantha microstachys John Rawlings 2014-5-10 16601660 San Mateo Jasper Ridge Biological Preserve, Stanford University; along Tr. 9 alternate 127 Comment
  JROH1387  Cryptantha torreyana var. pumila John Rawlings 2009-5-7 1067 San Mateo Jasper Ridge Biological Preserve, Stanford University. North edge of Trail 9. 162 Comment
  UC1086215  Cupressus abramsiana C. McMillan 1951-1-1 1621 San Mateo Butano Ridge Comment
  UC971944  Cupressus abramsiana C. McMillan, P. McMillan, R. Bacigalupi, L. Heckard, H. Dutton 1951-9-1 1620 San Mateo n of Big Basin (Butano Ridge, on sandstone slope, (The cypress area includes common corner of sections 11, 12, 13, and 14 of T8S R4W, Mount Diable Base and Meridian...)); Santa Cruz Mountains,Santa Cruz quadrangle, Butano Ridge Comment
Read comments
Sep 9 2014
  RSA735620  Cupressus abramsiana subsp. butanoensis John Silba 2004-12-28 B- 423 San Mateo Pescadero County Park, on Butano Ridge, ca. 5.0-5.5 miles east of Dearborn Park Road 396 Comment
  RSA140852  Cupressus macrocarpa John H. Thomas 1960-8-28 8832 San Mateo Near Skyline Blvd. and Summit Dr. to the west of Hillsborough. Comment
  UC580080  Cuscuta salina var. major Ira L. Wiggins 1934-8-11 6970 San Mateo 1 mi n Redwood City (along Bayshore Highway) Comment
  CHSC42086  Cynoglossum grande Rusti Gammon 1986-3-30 2 San Mateo Ca. 8 mi s of Saratoga, 4.1 mi w off hwy 9. 569 Comment
  JEPS68165  Cynoglossum grande Elsa Kraeger 1926-2-21 San Mateo along roadside near La Honda Comment
  JROH1395  Cynoglossum grande John Hunter Thomas 1988-4-7 24384 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCSB18697  Cynoglossum grande Hutchinson, Sandra 1964-3-24 San Mateo Swayer Camp Road, 0.3-0.8 mile from Skyline Blvd., the entrance off millbrae Ave., Crystal Springs area 106 Comment
  CDA40497  Cynoglossum grande T. C. Fuller 1960-4-2 4083 San Mateo La Honda Rd., 0.4 mile north of La Honda. 0 Comment
  CAS-BOT-BC190352  Cynosurus echinatus J. H. Thomas 1961-8-20 9684 San Mateo Hiking and riding trail below Skyline Boulevard between Bear Gulch Road and Kings Mountain Road. 609 Comment
  CAS-BOT-BC114458  Cyperus eragrostis Phillip C. Wheeler 1965-5-8 s.n. San Mateo Sierra Point Comment
  CAS-BOT-BC114457  Cyperus eragrostis W. R. Dudley 1908-6-19 s.n. San Mateo Road from Tanforan to Jersey Dairy. Comment
  CAS-BOT-BC114463  Cyperus eragrostis Phillip C. Wheeler 1965-6-19 s.n. San Mateo Crocker Industrial Park Comment
  SEINET200022  Cyperus eragrostis Malcolm A. Nobs, S. Galen Smith 1949-8-26 1949 San Mateo 1 mile S of Half Moon Bay. Comment
  SEINET3909461  Cyperus eragrostis Lewis S. Rose 1965-9-20 65107 San Mateo Burlingame, Trousdale Dr. & California Dr.; 0 9 Comment
  SEINET7581670 Image available Cyperus eragrostis Lewis S. Rose 1965-9-20 65107 San Mateo Trousdale Dr & California Dr. 9 Comment
  CAS-BOT-BC198192  Cytisus scoparius Charles Piper Smith 1922-4-29 3507 San Mateo Lake San Andreas Comment
  SBBG108508  Cytisus scoparius N. Meng 1964-4-18 San Mateo Pacifica 30 Comment
Read comments
Dec 6 2012
  CAS-BOT-BC189820  Dactylis glomerata Elizabeth McClintock; Paul Reeberg 1989-8-31 s.n. San Mateo San Bruno Mountains. Along Old Guadalupe Trail. Comment
  JROH5017  Dactylis glomerata John Hunter Thomas 1977-6-16 18753 San Mateo Jasper Ridge Biological Preserve, Stanford University. Weedy area near old racing oval Comment
  SJSU15434  Dactylis glomerata Toni Corelli 2010-5-17 674 San Mateo Pescadero State Beach and Marsh Natural Preserve, south of north parking lot 6 Comment
  CAS-BOT-BC192239  Danthonia californica W. R. Dudley 1899-5-14 s.n. San Mateo Top of Sneath Ranch hill, West of South Bruno Comment
  CAS-BOT-BC192243  Danthonia californica A. D. E. Elmer 1903-6-1 4707 San Mateo Crystal Springs Lake Comment
  JROH5035  Danthonia californica H. J. Dengler 1967-4-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Found by the vernal spring at west end of the serpentine meadow Comment
  JROH5038  Danthonia californica John H. Thomas 1968-5-3 14437 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA112477  Datisca glomerata W. R. Dudley 1895-6-14 s.n. San Mateo Santa Cruz Peninsula: Along San Francisquito Creek. Comment
  JEPS13252  Daucus carota Rimo Bacigalupi with G. Thomas Robbins 1955-8-4 5444 San Mateo just s. Pedro Valley (along grade on Ca Hwy. No. 1) Comment
  JROH230  Daucus pusillus John Hunter Thomas 1989-5-11 24742 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM133419  Daucus pusillus E. B. Copeland 1903-6-8 3337 San Mateo Montara Point. Comment
Read comments
Jan 23 2011
  OBI16296  Deinandra corymbosa Robert F. Hoover 1966-8-27 9942 San Mateo Halfmoon Bay Comment
  CAS-BOT-BC299198  Deinandra corymbosa subsp. corymbosa L. R. Abrams 1902-9-21 3000 San Mateo Crystal Lake Comment
  CAS-BOT-BC299221  Deinandra corymbosa subsp. corymbosa Alice Eastwood 1921-7-17 s.n. San Mateo Granada 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-BC292119  Delairea odorata John H. Thomas 1968-12-18 14874 San Mateo Beach at Pescadero Comment
  RSA184849  Delphinium californicum L. S. Rose 1965-5-3 65058 San Mateo San Bruno Mountain, Colma Canyon. 61 Comment
  JROH3432  Delphinium californicum subsp. californicum D. E. Breedlove 1971-5-31 19358 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  CAS-BOT-BC9230  Delphinium decorum R. C. Bacigalupi 1922-3-1 s.n. San Mateo Near coast, vicinity of Pigeon Point Comment
  CAS-BOT-BC9229  Delphinium decorum Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountains, between April Brook and Radio Road Comment
  CAS-BOT-BC10283  Delphinium hesperium LeRoy Abrams 1920-6-1 7495 San Mateo Redwood City Comment
  CAS-BOT-BC10292  Delphinium hesperium Elizabeth McClintock 1979-5-28 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  RSA122777  Delphinium hesperium N. K. Carlson 1935-6-29 107 San Mateo San Mateo: 1 mile S of Pescadero, Santa Cruz. 91 Comment
  CAS-BOT-BC9871  Delphinium nudicaule George Thomas Oberlander 1949-5-13 164 San Mateo San Mateo Creek Canyon Comment
  UCD18536  Delphinium nudicaule Roman Gankin 1950-7-2 3 San Mateo east side of the Peninsula Coast Range, off of the King's Mtn. Rd. behind Woodside. 609 Comment
  CAS-BOT-BC7889  Delphinium variegatum LeRoy Abrams 1902-5-11 2454 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC7938  Delphinium variegatum John Hunter Thomas 1967-5-2 12815 San Mateo Along Skyline Blvd. 0.4 miles S of Black Mt. Road intersection, Hillsborough Comment
  SEINET12086776  Delphinium variegatum L. S. Rose 1932-1 32138 San Mateo Redwood City Comment
  JEPS127792  Delphinium variegatum subsp. variegatum Adam C. Schneider with C. Matt Guilliams 2013-4-7 63 San Mateo 1+ m away from dirt road running parallel to overhead power transmission lines. GPS coordinates approximate. Comment
  CAS-BOT-BC389715  Dendromecon rigida Sharon Rogers 1966-4-1 105 San Mateo San Mateo Comment
  CAS-BOT-BC631  Dendromecon rigida subsp. rigida Oliver Norvell 1931-3-2 1396 San Mateo La Honda Grade. Comment
  CAS-BOT-BC192601  Deschampsia cespitosa subsp. holciformis George Oberlander 1950-4-22 724 San Mateo Cahill Ridge Comment
  SJSU16035  Deschampsia cespitosa subsp. holciformis John Rawlings, Toni Corelli 2016-4-29 1769 San Mateo Cascade Field along Atkinson Bluff Trail, north of Cascade Cr. Trail, in Ano Nuevo State Park 11 Comment
  CAS-BOT-BC201911  Deschampsia elongata W. R. Dudley 1895-6-6 s.n. San Mateo Pescadero Creek near Iverson's [Iverson] Comment
  JROH5073  Deschampsia elongata John Hunter Thomas 1988-5-16 24465 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low flow crossing. Comment
  CAS-BOT-BC901  Dicentra chrysantha George T. Ruddock Sept 1917 s.n. San Mateo San Carlos Peak Comment
  SJSU112  Dicentra formosa T. Rogers 1929-5-30 San Mateo Kings Mt Comment
  SEINET10833780  Dichelostemma capitatum Charles F. Baker 1902-5-4 Baker 76 San Mateo Woodside, Calif. Common in places near rocky outcrops. Comment
  JEPS127778  Dichelostemma capitatum subsp. capitatum Adam C. Schneider with C. Matt Guilliams 2013-3-9 28 San Mateo Comment
  JEPS127848  Dichelostemma capitatum subsp. capitatum Adam C. Schneider 2013-4-7 86 San Mateo Comment
  CAS-BOT-BC502168  Dichelostemma congestum Fred Hemphill 1973-4-22 693 San Mateo San Carlos. Chaparral area north of Malabar Road and Melendy Drive. 207 Comment
  JROH4666  Dichelostemma multiflorum Ruth Porter 1999-5-7 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. North side of Road B Comment
  JROH5720  Digitaria sanguinalis John Rawlings 2015-9-22 1643 San Mateo Jasper Ridge Biological Preserve, Stanford University. In mud of Corte Madera Creek delta near open water 104 Comment
  CAS-BOT-BC150457  Diplacus aurantiacus Viola Nichols 1911-5-6 1006 San Mateo Belmont, 2nd hill Comment
  CAS-BOT-BC150463  Diplacus aurantiacus Carl B. Wolf 1930-11-5 1804 San Mateo Half way up east side of La Honda Grade, Santa Cruz Mtns. 304 Comment
  CAS-BOT-BC151990  Diplacus douglasii L. R. Abrams 1915-3-23 5566 San Mateo Between Woodside and Crystal Springs Lake by crossroads - Santa Cruz Mountain Peninsula Comment
  JEPS127891  Dipsacus sativus Adam C. Schneider with C. Matt Guilliams and Will Freyman 2014-6-24 301 San Mateo Crystal Springs Reservoir Comment
  JROH1909  Dipsacus sativus John H. Thomas 1969-6-4 15108 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1911  Dipsacus sativus John H. Thomas 1975-5-2 17855 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC121869  Dirca occidentalis Dennis E. Breedlove 1964-2-7 5916 San Mateo In San Andreas Canyon below the dam. Comment
  JROH4198  Dirca occidentalis John H. Thomas 1958-2-15 6980 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4202  Dirca occidentalis John H. Thomas 1968-2-11 14144 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4203  Dirca occidentalis John H. Thomas 1968-2-11 14144 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4210  Dirca occidentalis John Hunter Thomas 1981-2-14 20227 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
  POM169497  Disporum hookeri var. hookeri C. F. Baker 1903-04 5052 San Mateo Crystal Springs Lake. Comment
  RSA15289  Disporum hookeri var. hookeri Carl B. Wolf 1927-4-3 257 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  RSA244344  Disporum hookeri var. hookeri C. W. Tilforth, John Dourley 1973-7-19 933 San Mateo Gazos Creek Road, between Butano and Big Basin State Parks Comment
  POM169800  Disporum smithii A. D. E. Elmer 1903-05 4697 San Mateo Butano Creek Comment
  CAS-BOT-BC195722  Distichlis spicata John H. Thomas 1963-5-20 10150 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NE of Santa Cruz Comment
  UC1100272  Distichlis spicata Malcolm A. Nobs, S. Galen Smith 1949-8-26 1602 San Mateo Marshes at mouth of Pescadero Creek Comment
  JROH3385  Dodecatheon hendersonii John H. Thomas 1968-3-17 14179 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  HSC17872  Dodecatheon hendersonii Donald A. Johansen 1940-3-9 810 San Mateo Skyline Blvd. W of Burlingame Comment
  JROH1513  Draba verna John Hunter Thomas 1987-4-7 24172 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  UC1964685  Drymocallis glandulosa Roger Raiche 1983-8-18 30634 San Mateo Montara Mt. Comment
  CAS-BOT-BC159537  Drymocallis glandulosa var. glandulosa W. R. Dudley 1894-5-30 s.n. San Mateo Near San Carlos - Santa Cruz Peninsula Comment
  JROH3735  Drymocallis glandulosa var. wrangelliana D. E. Breedlove 1971-5-31 19349 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  JROH3738  Drymocallis glandulosa var. wrangelliana John Hunter Thomas 1985-5-7 23643 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA112450  Drymocallis glandulosa var. wrangelliana Josephine Randall 1907-7-7 340 San Mateo Kings Mtn. Comment
  CHSC39802  Dryopteris arguta Maxey-Jones 1928-5-21 San Mateo In La Honda Redwoods. Comment
Read comments
Jul 7 2010
  JROH26  Dryopteris arguta John H. Thomas 1973-6-15 16840 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH29  Dryopteris arguta Lawrence J. Winship 1974-11-2 9 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH32  Dryopteris arguta John H. Thomas 1976-4-2 18076 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  POM87721  Dryopteris arguta L. R. Abrams 1902-3-16 2273 San Mateo Kings Mountain Comment
  UC74801  Dryopteris arguta C. F. Baker 1902-1-15 320 San Mateo w side King's Mt Comment
  CAS-BOT-BC67885  Dryopteris arguta L. R. Abrams 1901-12-29 2251 San Mateo Santa Cruz Mts. Comment
  CAS-BOT-BC67889  Dryopteris arguta W. R. Dudley 1897-1-11 s.n. San Mateo Santa Cruz Peninsula - Lower part of Butano Creek Comment
  UCSC008147  Dudleya Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC428362  Dudleya farinosa Ira L. Wiggins 1929-7-4 3802 San Mateo Near the mouth of Pescadero Creek, 2 miles from town of Pescadero Comment
  JROH5085  Echinochloa crus-galli John H. Thomas 1974-10-29 17652 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small peninsula created by drainage channel cut to accommodate water from Corte Madera Cr. Comment
  JROH5088  Echinochloa crus-galli John Hunter Thomas 1979-9-9 19713 San Mateo Jasper Ridge Biological Preserve, Stanford University. Lake edge and delta. Comment
  JROH5655  Eleocharis macrostachya John Rawlings 2014-5-23 1271 San Mateo Jasper Ridge Biological Preserve, Stanford University; up-slope from boat dock (aka Searsville Lab Landing). 104 Comment
  UC1811  Eleocharis macrostachya J. Burtt Davy 1893-6-21 764 San Mateo Lake San Andreas Comment
  CAS-BOT-BC203688  Elymus glaucus subsp. glaucus John H. Thomas 1961-5-7 9255 San Mateo San Bruno Mountain in northern part of county 396 Comment
  JROH5107  Elymus glaucus subsp. glaucus John H. Thomas 1977-5-14 18605 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5136  Elymus multisetus John Hunter Thomas 1992-5-25 25340 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5955  Elymus multisetus John Rawlings 2017-5-19 2052 San Mateo Jasper Ridge Biological Preserve, Stanford University; on slope north of Global Change site, south of Field Station visitor parking lot 117 Comment
  JROH5278  Elymus triticoides W. H. Lennihan 1989-6-22 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Just outside gate on east side of low-flow causeway -- San Francisquito Creek, Whiskey Hill entrance, south side of road. Comment
  SEINET12641003  Epilobium canum E. Crawford 1982-1 s.n. San Mateo Beside highway 1, up cliff from Pomponio Beach. 37 Comment
  UC1122298  Epilobium canum subsp. canum G. E. Sindel 1935-8-19 335 San Mateo 1 mi sw Langley Hill; Santa Cruz Quadrangle Comment
  JROH3051  Epilobium ciliatum subsp. ciliatum John H. Thomas 1976-10-16 18424 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low flow crossing Comment
  JROH3060  Epilobium ciliatum subsp. ciliatum John Hunter Thomas 1981-7-12 20694 San Mateo Jasper Ridge Biological Preserve, Stanford University; growing at boat dock Comment
  UC1122561  Epilobium ciliatum subsp. watsonii H. S. Yates 1935-5-8 5220 San Mateo 2 mi sw Pescadero; Santa Cruz Quadrangle Comment
  POM312602  Epilobium ciliatum subsp. watsonii Malcolm A. Nobs, S. Galen Smith 1949-8-26 1585 San Mateo About 1 mile south of Half Moon Bay. Comment
  UC306525  Epilobium densiflorum A. D. E. Elmer June, 1903 4273 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC389737  Epipactis gigantea J. Lovelle 1973-7-8 6 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  SJSU15420  Epipactis helleborine Toni Corelli 2011-8-31 713 San Mateo Pescadero State Beach and Marsh Natural Preserve. West Butano Loop about 0.5 mile southeast of Hwy. 1 off of Pescadero Road. 3 Comment
  CDA39514  Epipactis helleborine T. C. Fuller 1970-5-12 19528 San Mateo Emily Brown property, 3045 Ralston Avenue, Burlingame. 0 Comment
  CAS-BOT-BC384620  Equisetum J. Lovelle 1973-8-5 s.n. San Mateo Pomponio Canyon Comment
  RSA30891  Equisetum hyemale var. affine Roxana S. Ferris 1921-3-20 2113 San Mateo Pescadero near mouth of canon. The Santa Cruz Mtn Peninsula. Comment
  CAS-BOT-BC57606  Equisetum telmateia L. R. Abrams 1904-3-7 6343 San Mateo Bear Gulch near Time Falls Comment
  RSA131968  Equisetum telmateia var. braunii John H. Thomas 1950-3-5 1295 San Mateo About 5 miles from Pescadero toward La Honda along Hwy. 152 Comment
  CAS-BOT-BC284050  Eragrostis pectinacea var. pectinacea Ira L. Wiggins 1973-6-24 22020 San Mateo Bed of San Francisquito Creek, 50-60 m upstream from Pope Street bridge, boundary between San Mateo and Santa Clara counties Comment
  RSA128463  Erechtites glomeratus Peter H. Raven 1950-6-3 2219 San Mateo Weed along Millbrae Ave, Millbrae. 61 Comment
  JROH644  Erigeron bonariensis John H. Thomas 1972-8-18 16156 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH646  Erigeron bonariensis John H. Thomas 1976-10-16 18411 San Mateo Jasper Ridge Biological Preserve, Stanford University; now dry delta in Searsville Lake at the mouth of Corte de Madera Creek Comment
  JROH654  Erigeron canadensis John Hunter Thomas 1991-11-21 25105 San Mateo Jasper Ridge Biological Preserve, Stanford University; near low-flow crossing of San Francisquito Creek Comment
  UCD131896  Erigeron floribundus John Thomas Howell 1975-9-25 51508 San Mateo San Bruno Mountain. 396 Comment
  JROH691  Erigeron foliosus var. foliosus John H. Thomas 1973-6-10 16807 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC295087  Erigeron glaucus Walter Knight; Irja Knight; Elizabeth McClintock 1963-9-2 s.n. San Mateo San Bruno Mountain. Power Line Ridge Comment
  CAS-BOT-BC295094  Erigeron glaucus Louis F. Pitelka 1974-5-28 s.n. San Mateo Bolsa Point, about 1 mi N of Pigeon Point and about 39 mi S of San Francisco Comment
  CAS-BOT-BC295088  Erigeron glaucus Elizabeth McClintock; Carlyn Halde 1963-6-23 s.n. San Mateo San Bruno Mountain. East facing slope below parking lot Comment
  JROH5627  Erigeron sumatrensis Ann Lambrecht 2006-11-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Behind outbuildings near caretaker's residence (Sector 29 D3) Comment
  CAS-BOT-BC216127  Eriodictyon californicum A. D. E. Elmer 1903-4-1 4801 San Mateo Lake San Andreas Comment
  CAS-BOT-BC216243  Eriodictyon californicum Josephine D. Randall 1907-6-29 164 San Mateo King's Mt. Road, Santa Cruz Peninsula Comment
  CAS-BOT-BC216245  Eriodictyon californicum Josephine D. Randall 1907-6-1 165 San Mateo Los Trancos Road near Stanford University, Santa Cruz Peninsula Comment
  UC24053  Eriodictyon californicum J. Burtt Davy Jun 21 1893-Jun 23 1893 1137 San Mateo Pilarcitos Lake and Canyon Comment
  CAS-BOT-BC250548  Eriogonum gracile John H. Thomas 1971-5-2 15823 San Mateo Near intersection of Canada and Edgewater [Edgewood?] roads. About 4 miles SW of center of Redwood City 304 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
  JEPS127881  Eriogonum latifolium Adam C. Schneider with Alison Colwell 2013-6-23 294 San Mateo Pacifica State Beach, west of CA State Highway 1. Comment
  POM145464  Eriogonum latifolium J. B. Feudge 1923-8-19 97 San Mateo Ano Nuevo Point 6 Comment
  RSA18452  Eriogonum latifolium Carl B. Wolf 1927-6-29 555 San Mateo South of Pebble Beach near Pescadero. Comment
  RSA393631A  Eriogonum latifolium E. A. Purer 1933-7-27 5370 San Mateo 2 miles south of Pigeon Point. Comment
  SBBG1532  Eriogonum latifolium H. and M. Dearing 1951-8-17 6944 San Mateo Pigeon Point on Hwy 1 N of Santa Cruz Comment
  SD38688  Eriogonum latifolium Edith A. Purer 1933-7-27 5379 San Mateo small dunes near strand, two miles south of Pigeon Point Comment
  UC1537277  Eriogonum latifolium Gordon H. True Jr. 1936-6-7 486 San Mateo cove 2 mi s Pescadero 15 Comment
  UC176458  Eriogonum latifolium Katharine Brandegee 1913-8-11 San Mateo Tobin Comment
  UCR240612  Eriogonum latifolium T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3524 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
  RSA246541  Eriogonum latifolium E. K. Balls 1969-9-16 12177 San Mateo 1 mile northwest of Santa Cruz county line, Highway 1. 9 Comment
  SEINET3814248 Image available Eriogonum latifolium Lewis S. Rose 1933-7-21 33307 San Mateo Montara. Comment
  CAS-BOT-BC264771  Eriogonum luteolum David D. Keck 1931-10-5 1281 San Mateo Dam at north end of Crystal Springs Lake Comment
  CAS-BOT-BC264774  Eriogonum luteolum Hester R. Davis 1920-6-1 177 San Mateo Back of Redwood City, Santa Cruz Mountain Peninsula Comment
  POM263681  Eriogonum luteolum L. S. Rose 1941-9-2 41432 San Mateo Emerald Lake, west of Redwood City 90 Comment
  RSA187318  Eriogonum luteolum John H. Thomas 1964-7-3 10441 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles southwest of Palo Alto Comment
  JROH3235  Eriogonum luteolum var. luteolum John Hunter Thomas 1982-10-16 21180 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3226  Eriogonum luteolum var. luteolum Duncan M. Porter 1960-10-12 725 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow at crest of Ridge above Webb Ranch (area H). Comment
  JROH3238  Eriogonum luteolum var. luteolum Carol Zabel 1989-8-27 33 San Mateo Jasper Ridge Biological Preserve, Stanford University. Herb's serpentine loop, top of Trail 5. Comment
  JEPS83064  Eriogonum nudum Roy E. Buck, Randall A. Morgan, James A. West 1983-7-23 449 San Mateo 1.4 km w San Andreas Dam (at n end of Sawyer Ridge, on sw-facing slope above last curve in gravel ridge road before intersection above San Andreas Dam); San Francisco Watershed Reserve, Sawyer Ridge 312 Comment
  JEPS127777  Eriogonum nudum var. auriculatum Adam C. Schneider with C. Matt Guilliams 2013-3-9 30 San Mateo Comment
  CAS-BOT-BC268999  Eriogonum nudum var. auriculatum Elizabeth McClintock; Philip Wheeler 1967-5-14 s.n. San Mateo San Bruno Mountain. East side of mountain, above Harold Ave., Brisbane Comment
  CAS-BOT-BC304086  Eriophyllum confertiflorum Ned Cahill 1974-5-18 285 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City Comment
  CDA5251  Eriophyllum confertiflorum P. Arnand 1959-5-31 2515 San Mateo Redwood City. 0 Comment
  RSA18308  Eriophyllum confertiflorum C. B. Wolf 1927-5-31 408 San Mateo North end of Searsville Lake. Comment
  JEPS83062  Eriophyllum lanatum var. arachnoideum Roy E. Buck, Randall A. Morgan, and James A. West 1983-7-23 451 San Mateo 1.4 km w of San Andreas Dam (at n end of Sawyer Ridge, on raodcut and sw-facing slope above last curve in gravel ridge road before intersection above San Andreas Dam.); San Francisco Watershed Reserve, Sawyer Ridge Comment
  JROH720  Eriophyllum lanatum var. arachnoideum John H. Thomas 1962-7-15 9912 San Mateo Jasper Ridge Biological Preserve, Stanford University; near northern end of ridge Comment
  RSA463086  Eriophyllum lanatum var. arachnoideum Lyman Benson 1930-5-3 2113 San Mateo Above Woodside, Mt. Range: Santa Cruz. 366 Comment
  CAS-BOT-BC301751  Eriophyllum latilobum L. Constance 1938-5-16 2242 San Mateo On San Mateo Creek, Half Moon Bay road 2 miles SW. of San Mateo 45 Comment
  JEPS28876  Eriophyllum latilobum V. F. Hesse 1962-6-26 3152 San Mateo 9 mi n of Saratoga Summit Highway 5; ; <State route 5 became state route 35> 609 Comment
Read comments
Sep 8 2011
  LA203607  Eriophyllum latilobum Ira L. Wiggins; 1929-7-4 3785 San Mateo 4 mi. W. of La Honda on hill road to Pescadero Beach Comment
  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-BC301980  Eriophyllum staechadifolium Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  OBI49170  Eriophyllum staechadifolium var. artemisiifolium Lewis S. Rose 1938-8-18 38233 San Mateo Skyline Blvd, 3 mi S of San Francisco Co. line 61 Comment
  JROH2596  Erodium botrys John H. Thomas 1971-4-10 15762 C San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2604  Erodium cicutarium John H. Thomas 1974-4-4 17082 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
  SEINET7062816  Eryngium armatum A. G. Vestal 1937-6-15 s.n. San Mateo Pebble Beach west of Pescadero. UTM Zone 10, 551765mE, 4121313mN. (WGS84/NAD83). 0 Comment
  UC20995  Eryngium armatum Alice Eastwood May 1896 San Mateo Crystal Springs Comment
  JROH235  Eryngium jepsonii A. G. Vestal 1926-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; summit of Jasper Ridge Comment
  CAS-BOT-BC54508  Erysimum capitatum Alice Eastwood; John Thomas Howell 1938-6-26 6053 San Mateo 2 miles south of San Gregorio. Comment
  CAS-BOT-BC54828  Erysimum franciscanum W. R. Dudley 1894-3-27 s.n. San Mateo Santa Cruz Peninsula. On ledges below Crystal Springs Dam. Comment
  CAS-BOT-BC54881  Erysimum franciscanum Roxana S. Ferris 1921-4-7 2147 San Mateo Santa Cruz Mountains. San Bruno Mountain. 182 Comment
  RSA102113  Erysimum franciscanum G. B. Rossbach 567 San Mateo Lower W slope Pulgas Ridge above E shore Crystal Springs Lake Comment
  UC1034943  Erysimum franciscanum G. B. and R. P. Rossbach 1938-4-3 807 San Mateo moist ravine in upper slope of hills San Bruno Hills Comment
  RSA0001945  Erysimum franciscanum G. B. Rossbach 1955-3-26 572 San Mateo High seaward slope 2 mi. S of San Francisco line & 3 mi. N of Sharp Peak (Salada). Comment
  JROH5782  Erythranthe microphylla John Rawlings 2015-5-3 1776 San Mateo Jasper Ridge Biological Preserve, Stanford University; vernally wet area in serpentine prairie (Area C) 170 Comment
  CAS-BOT-BC420646  Escallonia rubra var. macrantha Elizabeth McClintock; Paul Reeberg 1989-3-14 s.n. San Mateo Uncommon, along Guadalupe Canyon Parkway west of the park kiosk, on the north side of the parkway. 182 Comment
  CAS-BOT-BC403552  Eschscholzia californica Ned Cahill 1974-4-18 124 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CHSC22755  Eschscholzia californica Robert A. Schlising 1962-2-24 2083 San Mateo the California Coastal Ranges. Roadside, along Cabrillo Hwy (No 1) .7 mi N of county line. Comment
  JEPS121487  Eschscholzia californica Adam C. Schneider with C. Matt Guilliams 2013-3-9 23 San Mateo Crystal Springs Reservoir Comment
  JROH3099  Eschscholzia californica John H. Thomas 1975-5-26 17911 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC10015  Eschscholzia californica J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  UC2049884  Eschscholzia californica H. W. Johansen 1955-4-3 1 San Mateo Jones Gulch, 5 miles S of La Honda Comment
  CAS-BOT-BC403548  Eschscholzia californica John H. Thomas 1963-5-20 10098 San Mateo Ano Nuevo Island, about one half mile off shore and about 20 miles NW of Santa Cruz 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
  RSA15341  Eschscholzia californica subsp. californica Carl B. Wolf 1927-1-29 152 San Mateo Near coast between Pescadero and Pebble Beach Comment
  CAS-BOT-BC202737  Euonymus occidentalis L. R. Abrams 1906-9-24 s.n. San Mateo Goat Ranch Canon [Canyon], Santa Cruz Mts. near Portola Comment
  CAS-BOT-BC202738  Euonymus occidentalis C. B. Wolf 1931-8-21 2333 San Mateo 1/2 mile above east base of La Honda Grade, Santa Cruz Mts. 243 Comment
  HSC4303  Euonymus occidentalis J. Wendell Howe 1930-3-27 San Mateo Coast Rd. near Pigeon Point. Comment
  JROH1798  Euonymus occidentalis var. occidentalis Elmer I. Applegate 1895-5-11 67 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Comment
  RSA130686  Euphorbia crenulata Roxana S. Ferris 1921-3-20 2114 San Mateo Pescadero - La Honda Road. 183 Comment
  SJSU15422  Euphorbia lathyris Toni Corelli 2011-8-31 715 San Mateo Pescadero State Beach and Marsh Natural Preserve, Round Hill Trail at the end of Water Lane Road 5 Comment
  CDA19846  Euphorbia oblongata D. Pendleton 2002-4-25 PDR 065843 San Mateo San Francisco Bay Area; Sandhill Rd, 0.25 mi N of Portola Rd, Woodside. 0 Comment
  CAS-BOT-BC310614  Eurybia radulina C. F. Leitholt 1894-8-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Devils Canon [Canyon], Black Mountain Comment
  JROH528  Eurybia radulina L. R. Abrams 1916-10-14 6350 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Ridge Comment
  CAS-BOT-BC310720  Euthamia occidentalis James McMurphy 1905-10-29 s.n. San Mateo Above Portola Comment
  SJSU16002  Euthamia occidentalis John Rawlings, Toni Corelli 2016-8-22 1942 San Mateo Franklin Point Trail, Ano Nuevo State Park 10 Comment
  JROH5472  Festuca bromoides John Hunter Thomas 1981-4-23 20492 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5947  Festuca bromoides John Rawlings 2017-4-9 1992 San Mateo Jasper Ridge Biological Preserve, Stanford University; path from Field Station to the top of the Dam, 116 Comment
  CAS-BOT-BC278284  Festuca californica Dean Wm. Taylor 1988-4-8 9504 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
  JEPS18167  Festuca californica Rimo Bacigalupi with Galen Smith, L. Dempster, and T. Robbins 1956-5-15 5645 San Mateo first ridge w San Andreas Lake (on road to Pilarcitos Lake) 198 Comment
  CAS-BOT-BC278350  Festuca californica subsp. californica L. R. A. 1902-5-11 2461 San Mateo Crystal Springs Comment
  CAS-BOT-BC278479  Festuca idahoensis Elizabeth McClintock 1963-6-9 s.n. San Mateo San Bruno Mountain Comment
  JROH5504  Festuca myuros W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By parking lot near marsh. 108 Comment
  RSA135767  Festuca occidentalis W. R. Dudley 1895-06 s.n. San Mateo Pescadero Creek. Comment
  JROH5283  Festuca perennis John H. Thomas 1973-6-15 16851 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH6207  Festuca rubra John Rawlings 2014-4-4 1239 San Mateo Jasper Ridge Biological Preserve, Stanford University; verge of Goya Rd. at its terminus near Preserve entrance. 199 Comment
  POM87792  Fragaria californica L. R. Abrams 1902-5-20 2469 San Mateo Kings Mountain Comment
  RSA133096  Fragaria californica Donald A. Johansen 1933-5-18 709 San Mateo Along road from Portola to La Honda. Comment
  CDA33775  Fragaria chiloensis D. G. Kelch 2011-3-13 11 .048 San Mateo Pacifica. Along sea bluffs 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
  CAS-BOT-BC437038  Fragaria chiloensis Elizabeth McClintock 1965-3-28 s.n. San Mateo April Brook, San Bruno Mountain Comment
  UCSC007755  Fragaria chiloensis Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  UCD113256  Fragaria vesca R. S. Woglum 1935-5-25 1158 San Mateo San Francisco area: Skyline Drive south to Big Basin Redwoods. Comment
  CAS-BOT-BC457519  Fragaria vesca subsp. californica Margaret A. Barry 1937-4-21 6 San Mateo woods on Coal Mine Ridge Comment
  CAS-BOT-BC457527  Fragaria vesca subsp. californica George Oberlander 1949-4-9 58 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve Comment
  CAS-BOT-BC457528  Fragaria vesca subsp. californica J. H. Thomas 1949-3-29 192 San Mateo Kings Mountain. Comment
  JROH3540  Frangula californica subsp. californica John H. Thomas 1973-5-5 16770 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG28507  Frangula californica subsp. californica C. B. Wolf 1927-11-27 San Mateo just S of Pescadero Comment
  JROH3578  Frangula californica subsp. tomentella John H. Thomas 1973-5-5 16770 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3558049 Image available Frankenia grandifolia Lewis S. Rose 1933-7-20 33304 San Mateo Granada Sea Beach. Comment
  CAS-BOT-BC211603  Frankenia salina L. R. Abrams 1906-9-29 s.n. San Mateo Cooley's Landing Comment
  OBI75351  Frankenia salina Lewis S. Rose 1938-8-18 38230 San Mateo Brisbane 2 Comment
  RSA391413  Frankenia salina E. A. Purer 1933-8-13 s.n. San Mateo Belmont Comment
  CAS-BOT-BC223550  Fraxinus latifolia Herman Knoche 1919-10-8 Series A, No. 2488 San Mateo Between Crystal Springs & San Mateo Comment
  UC1140922  Fremontodendron californicum subsp. californicum W. R. Dudley 1897-12-29 San Mateo Santa Cruz Peninsula, Butano Creek Butano Creek; Santa Cruz Peninsula, Butano Creek Comment
  CAS-BOT-BC130139  Fritillaria affinis J. H. Thomas 1949-4-14 268 San Mateo [King's] Kings Mt. Road Comment
  JEPS55687  Fritillaria affinis W. Roderick 1962-2-10 San Mateo Mount San Bruno 3 Comment
  CAS-BOT-BC130123  Fritillaria affinis D. D. Davis 1903-5-2 s.n. San Mateo Near La Honda Comment
  CAS-BOT-BC130125  Fritillaria affinis Catherine A. Toschi 1963-3-17 63 :55 San Mateo East slope San Bruno Mountains below radio station 213 Comment
  RSA794663  Fritillaria affinis Lyman Benson 1930-4-27 2099 San Mateo Stanford University, Corte Madera Creek drainage area Comment
  SEINET12054471  Fritillaria affinis Cummings, McCallum, G. A. 1933-1 s.n. San Mateo near La Honda Comment
  SJSU14166  Fritillaria biflora H. R. Himes 1989-3-17 San Mateo S end of Buri Buri Ridge on W side of Hwy 280 Comment
  CAS-BOT-BC183624  Galium aparine Peter Rubtzoff 1977-4-14 8939 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH3785  Galium murale John H. Thomas 1958-5-10 7138 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3797  Galium murale John H. Thomas 1975-4-19 17790 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3804  Galium murale John Hunter Thomas 1987-4-30 24219 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3788  Galium murale John H. Thomas 1961-4-29 9177 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA195643  Galium nuttallii John H. Thomas 1950-3-19 1301 San Mateo Near intersection of Coast Hwy and road to Swanton, 1 mile SE of mouth of Waddell Creek. 30 Comment
Read comments
Aug 8 2020
  POM222811  Galium nuttallii S. S. Berry, K. L. Dole 1909-4-3 s.n. San Mateo Near foot of Bear Creek Grade. 152 Comment
  POM319916  Galium nuttallii Barbara Shervanick 1973-4-1 805 San Mateo San Bruno Mt. at first summit at end of Crocker Rd. Comment
  JEPS83562  Galium trifidum var. pacificum Dean W. Taylor 1987-8-20 9310 San Mateo between Whitehorse Creek and Cascade Creek (about spring/seep); Santa Cruz Mts., Cascade Ranch state park area 76 Comment
  RSA120734  Galium triflorum S. S. Tillett, I. Sternback 1956-6-24 530 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  CAS-BOT-BC303467  Gamochaeta ustulata John Thomas Howell 1926-4-24 1921 San Mateo Daly City Comment
  JROH802  Gamochaeta ustulata John Hunter Thomas 1987-5-5 24254 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH804  Gamochaeta ustulata John Hunter Thomas 1989-5-5 24659 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH806  Gamochaeta ustulata John Hunter Thomas 1992-5-5 25208 San Mateo Jasper Ridge Biological Preserve, Stanford University; near picnic area and vicinity Comment
  CAS-BOT-BC194559  Garrya elliptica A. D. E. Elmer 1903-2-1 4469 San Mateo Portola Comment
  UC21591  Garrya elliptica J. Burtt Davy Jun 21 1893-Jun 23 1893 San Mateo Pilarcitos Lake and Canyon Comment
  UCD121102  Garrya elliptica R. E. Dengler 1960-4-10 9 San Mateo Jasper Ridge, Stanford Biological Reserve. 160 Comment
  JROH5186  Gastridium phleoides John H. Thomas 1973-6-15 16829 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC59636  Gaultheria shallon Walter Knight; Irja Knight 1964-9-30 s.n. San Mateo Lower Kamchatka Point. Comment
  CAS-BOT-BC219149  Genista monspessulana Sue Roberts 1954-5-1 59 San Mateo La Honda in redwood area on bank above road 7 miles east of La Honda Comment
  JROH2005  Genista monspessulana John Hunter Thomas 1988-4-7 24376 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD119662  Genista monspessulana Annabelle Kleist 2008-5-28 Wun- 4 San Mateo Woodside, Montelena Court. Comment
  UCR2934  Genista monspessulana Wm. Horn Jr. 1963-4-7 630407- 2 San Mateo San Francisco Bay, Hillsborough, 2240 Redington Road 30 Comment
  UCR101651  Geranium carolinianum George K. Helmkamp, E. A. Helmkamp 1998-5-16 3738 San Mateo Portola Valley, Golden Hills Rd along Los Trancos Creek 107 Comment
  RSA0028369  Geranium carolinianum W. R. Dudley 1898-4-24 s.n. San Mateo Field near Corte de Madera Bridge. Comment
  JROH2626  Geranium molle John H. Thomas 1973-4-14 16556 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC909020  Gilia achilleifolia subsp. achilleifolia Herbert L. Mason 1927-4-23 3677 San Mateo summit of road between La Honda and Pescadero Creek; summit of road between La Honda and Pescadero Creek Comment
  JROH3159  Gilia achilleifolia subsp. multicaulis John Hunter Thomas 1987-4-30 24221 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam Comment
  JROH3162  Gilia clivorum Elmer I. Applegate 1895-5-11 343 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Comment
  JROH3163  Gilia clivorum John H. Thomas 1963-3-20 10025 San Mateo Jasper Ridge Biological Preserve, Stanford University; near poppy knoll Comment
  UC75485  Gilia clivorum C. F. Baker Apr 1903 1899 San Mateo San Bruno Hills Comment
  UCSC008259  Gilia clivorum Randall Morgan 1987-4-29 s.n. San Mateo 1st big canyon at Devil's Slide Comment
  SEINET3869111  Ginkgo biloba Bill Popin 1988-10-9 44 San Mateo Central Park.; 0 Comment
  CAS-BOT-BC266511  Githopsis diffusa Margaret A. Barry 1937-5-15 s.n. San Mateo On Coal Mine Ridge Comment
  POM284863  Githopsis specularioides Lyman Benson 1930-4-17 2082 San Mateo Stanford University, foothills. Upper Sonoran. 122 Comment
  CAS-BOT-BC303687  Glebionis coronaria Walter & Irja Knight 1967-6-6 2071 San Mateo San Bruno Mt. Point San Bruno Comment
  JROH5201  Glyceria X occidentalis John Rawlings 2007-6-9 1022 San Mateo Jasper Ridge Biological Preserve, Stanford University. A few meters downstream from the Bear Creek and San Francisquito Creek confluence on a gravel bar on the NW side of San Francisquito Creek. 81 Comment
  RSA17964  Gnaphalium beneolens C. B. Wolf 1927-8-13 715 San Mateo Woodside Comment
  RSA184920  Gnaphalium chilense L. S. Rose 1966-8-6 66079 San Mateo Colma Canyon, San Bruno Mountain 122 Comment
  POM224080  Gnaphalium luteoalbum J. T. Howell 1935-1-13 12578 San Mateo Lake San Andreas. Comment
  POM58047  Gnaphalium palustre C. F. Baker 1902-10-20 1860 San Mateo Searsville Comment
  CAS-BOT-BC304505  Grindelia hirsutula David D. Keck 1931-9-27 1273 San Mateo Dumbarton Bridge Comment
  CAS-BOT-BC304517  Grindelia hirsutula L. R. Abrams 1909-8-2 4249 San Mateo Santa Cruz Peninsula. Pebble Beach. Pescadero Comment
  CAS-BOT-BC304518  Grindelia hirsutula Alice Eastwood 1937-7-25 18885 San Mateo Pebble Beach, Pescadero Comment
  CAS-BOT-BC304535  Grindelia hirsutula George Oberlander 1950-7-15 1099 San Mateo San Francisco Watershed Reserve. Northern Cahill Ridge Comment
  CAS-BOT-BC304549  Grindelia hirsutula Javier Penalosa 1963-3-30 2736 San Mateo San Bruno Mountain. North of Randolph Drive at Hillside Blvd. in SSF 289 Comment
  CAS-BOT-BC304550  Grindelia hirsutula W. R. Dudley 1899-5-14 s.n. San Mateo Santa Cruz Peninsula. By road from Pilarcitos to San Andreas Comment
  CAS-BOT-BC304566  Grindelia hirsutula George Oberlander 1949-7-10 220 San Mateo San Francisco Watershed Reserve. Northern Cahill Ridge Comment
  JEPS17019  Grindelia hirsutula Rimo Bacigalupi with J. R. Sweeney, G. Bacigalupi Jr., and C. Fenneman 1954-8-3 4738 San Mateo rocky road berm directly above Point San Pedro Comment
  JEPS89739  Grindelia hirsutula Dean W. Taylor 1988-3-30 9480 San Mateo n. slope of s.e. ridge San Bruno Mt. (near ridgecrest, right-of-way of eastern-most set of PG & E high-voltage powerlines crossing the mt.); Santa Cruz Mts., San Francisco South 7 1/2 Quad., San Bruno 237 Comment
  RSA296414  Grindelia hirsutula R. C. Bacigalupi, G. Thomas Robbins 1954-6-18 4550 San Mateo Along Alpine Road, 0.25 mile W of Skyline Blvd. 701 Comment
  UC483491  Grindelia hirsutula Ira L. Wiggins 1929-7-4 3799 San Mateo sea bluffs at Pescadero Beach Pescadero Beach Comment
  JROH813  Grindelia hirsutula H. J. Dengler 1961-5-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; S.W. of Searsville Rocks by steep road Comment
  SD30784  Grindelia stricta var. angustifolia Edith A. Purer 1933-8-4 5414 San Mateo Baden Station Comment
  RSA502346  Grindelia stricta var. platyphylla D. W. Taylor 1988-6-5 9789 San Mateo Hwy 1 at 'Big Slide,' a steep, eroding section of coastal bluff 1 mile N of Montara; Santa Cruz Mountains. 76 Comment
Read comments
Aug 25 2016
  POM273889A  Guillenia lasiophylla Lyman Benson 1931-3-15 2649 San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz; Watershed: San Francisco Bay 152 Comment
  JEPS35427  Helenium puberulum Alice King 1908-7-25 San Mateo Moss Beach Comment
  CAS-BOT-BC309534  Helenium puberulum W. R. Dudley 1895-9-15 s.n. San Mateo Santa Cruz Peninsula. El Corte Madera road Comment
  CAS-BOT-BC344859  Helenium puberulum Peter Rubtzoff 1976-6-30 8710 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  POM296643  Helenium puberulum L. S. Rose 1941-9-13 41439 San Mateo San Mateo Canyon. 30 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
  JROH854  Helianthella californica var. californica John Hunter Thomas 1980-5-8 19942 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH856  Helianthella californica var. californica John Hunter Thomas 1981-5-8 20564 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH861  Helianthella californica var. californica John Hunter Thomas 1989-5-9 24722 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC224053  Helianthemum scoparium Fred Hemphill 1973-5-6 779 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  JROH1837  Helianthemum scoparium John H. Thomas 1969-5-28 15077 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC305364  Helianthus annuus Ned Cahill 1974-10-8 373 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CDA40616  Heliotropium curassavicum var. oculatum Mickelson 1958-4-9 385 -58 San Mateo Metsymoto property, East Palo Alto. 0 Comment
  JROH1169  Helminthotheca echioides John H. Thomas 1974-10-26 17629 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1174  Helminthotheca echioides John Hunter Thomas 1982-7-22 21086 San Mateo Jasper Ridge Biological Preserve, Stanford University; near main gate on Sand Hill Rd. Comment
  CAS-BOT-BC314911  Hemizonia congesta subsp. luzulifolia Ned Cahill 1974-10-8 374 San Mateo Near the intersection of Canada and Edgewood Roads about 3 mi. westward from Redwood City 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
  JEPS23956  Hemizonia congesta subsp. luzulifolia John H. Thomas 1959-8-22 8078 San Mateo about 5 mi sw of Palo Alto; Jasper Ridge 152 Comment
  JEPS44416  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1965-8-27 65094 San Mateo w Redwood City; Emerald Lake 182 Comment
  JROH869  Hemizonia congesta subsp. luzulifolia John H. Thomas 1974-10-26 17635 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC32738  Hemizonia congesta subsp. luzulifolia J. Burtt Davy 1893-6-17 784 San Mateo Belmont Comment
  OBI16216  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1964-9-5 64070 San Mateo Emeral Lake, W of Redwood City 244 Comment
  UC1584834  Hemizonia congesta subsp. luzulifolia Jerry Powell 1990-5-11 1580 San Mateo at junction of Hwy 280 and Hwy 92 Comment
  SEINET5782062 Image available Hemizonia corymbosa L. S. Rose 1941-8-9 41361 San Mateo Moss Beach Comment
  POM299466  Hemizonia corymbosa subsp. corymbosa L. S. Rose 1941-8-9 41361 San Mateo Moss Beach. 16 Comment
  RSA133899  Hemizonia corymbosa subsp. corymbosa John H. Thomas 1959-8-16 8067 San Mateo About 2 miles N of Pigeon Point along the coast. 15 Comment
  RSA0034608  Hemizonia corymbosa subsp. corymbosa C. B. Wolf 1927-6-29 538 San Mateo South of Pebble Beach near Pescadero Comment
  POM360313  Hemizonia luzulifolia D. D. Keck 1931-10-5 1277 San Mateo Between Woodside and Crystal Springs Lake. Comment
  RSA81678  Hemizonia luzulifolia James I. McMurphy 1907-8-6 s.n. San Mateo E of causeway, Crystal Springs Lakes. Comment
  RSA124753  Hemizonia luzulifolia subsp. rudis John H. Thomas 1958-11-22 7507 San Mateo Jasper Ridge, 5 miles SW of Palo Alto. 152 Comment
  CDA7809  Hemizonia parryi M. A. Mello 1961-10-3 San Mateo Marsh & Beffa Ranch, Half Moon Bay. 0 Comment
  RSA18316  Heracleum maximum C. B. Wolf 1929-5-20 3720 San Mateo No. end of Searsville Lake. Comment
  JROH891  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1981-5-8 20549 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH899  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1991-5-2 25008 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH902  Hesperevax sparsiflora var. sparsiflora John Hunter Thomas 1992-4-23 25147 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC310248  Hesperevax sparsiflora var. sparsiflora Ned Cahill 1975-2-21 405 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC403865  Hesperocnide tenella Walter Knight; Irja Knight 1964-5-30 615 San Mateo San Bruno Mountain. Colma Canyon Comment
  JROH4231  Hesperocnide tenella John Hunter Thomas 1981-5-5 20539 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC176203  Hesperolinon congestum Blanche Clear 1938-5-22 s.n. San Mateo On road to Emerald Lake Comment
  JROH2926  Hesperolinon micranthum John H. Thomas 1968-5-22 14460 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2935  Hesperolinon micranthum John Hunter Thomas 1983-6-29 22707 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2938  Hesperolinon micranthum John Hunter Thomas 1992-5-25 25342 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3681  Heteromeles arbutifolia John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA71287  Heteromeles arbutifolia L. S. Rose 1949-8-10 49156 San Mateo Skyline Blvd, W of Tanforan 122 Comment
  JROH904  Heterotheca grandiflora John Hunter Thomas 1982-9-23 21163 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS27369  Heuchera micrantha Rimo Bacigalupi with J. Roof and L. Heckard 1961-4-24 7629 San Mateo below and se of end of paved ridge-top road just e of KRON television tower and station San Bruno Mt summit (Guadalupe Valley side of); San Bruno Mt 304 Comment
  CAS-BOT-BC319636  Hieracium albiflorum Josephine D. Randall 1907-6-29 82 San Mateo Portola Valley, Santa Cruz Peninsula Comment
  POM52661  Hieracium albiflorum C. F. Baker 1902-1-15 236 San Mateo Kings Mountain. West side of King's Mountain. Comment
  HSC23782  Hieracium albiflorum Mary Katherine Wicksten 1971-6-17 56 San Mateo Huddart Park; near Werder Flat, on the road to family campground Comment
  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
  UC822103  Hierochloe occidentalis L. R. Abrams 1904-3-7 San Mateo Bear Gulch Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC55431  Hirschfeldia incana Ira L. Wiggins 1975-8-5 22174 San Mateo Bed of San Francisquito Creek, ca. 100 m above Pope Street bridge, both sides of Santa Clara--San Mateo line. Comment
  RSA134378  Hoita orbicularis L. S. Rose 1959-6-24 59031 San Mateo San Mateo, Black Mtn. Rd. near Skyline Blvd. 122 Comment
  CAS-BOT-BC289253  Holcus lanatus Philip Wheeler 1965-6-8 s.n. San Mateo Crocker Industrial Park, San Bruno Mountain Comment
  JROH5219  Holcus lanatus W. Lennihan 1989-6-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 12 (Mapache), low area before Trail 10 goes uphill; left side of trail coming from lake. Comment
  UCR141417  Holcus lanatus June Latting 1975-6-8 s.n. San Mateo Central Coast, slough across from Pescadero dump (on Bean Hollow Rd.), west of Pescadero 9 Comment
  RSA121223  Holcus lanatus G. E. Sindel 1935-8-14 332 San Mateo Half mile N of Purisama Creek. 320 Comment
  UCSC007757  Holcus lanatus Becky Hendricks, Chris Lay 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  NY42430  Holodiscus discolor J. B. Walker 1994-8-14 908 San Mateo Pomponio Creek Rd, 5km S of junction of Hwy 84 & Hwy 1 10 Comment
  SD146168  Holodiscus discolor G. K. Helmkamp, E. A. Helmkamp 1999-6-28 4973 San Mateo Pescadero Creek Watershed: Pescadero Rd. just N of Loma Mar. 106 Comment
  UCR121543  Holodiscus discolor George K. Helmkamp, E. A. Helmkamp 1999-6-28 4973 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  CAS-BOT-BC150057  Holodiscus discolor var. discolor Jay B. Walker; Noah Goldstein 1994-8-14 908 San Mateo Pomponio Creek Road. 5 km south of jct Hwy 84 and Hwy 1 10 Comment
  JROH3690  Holodiscus discolor var. discolor John H. Thomas 1974-5-29 17399 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC150063  Holodiscus discolor var. discolor Elizabeth McClintock 1965-3-28 s.n. San Mateo In Trillium Gulch Comment
  SJSU15222  Hordeum brachyantherum subsp. brachyantherum Toni Corelli 2011-5-23 704 San Mateo Bean Hollow State Beach, Arroyo de los Frijoles Trail. Coastal bluff top south of Bean Hollow Beach 7 Comment
  CAS-BOT-BC289535  Hordeum brachyantherum subsp. californicum Lewis S. Rose 1956-5-7 56070 San Mateo Skyline Blvd. w. of San Mateo 182 Comment
  JROH5232  Hordeum brachyantherum subsp. californicum John Hunter Thomas 1992-5-25 25341 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15907  Hordeum brachyantherum subsp. californicum John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1732 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  CAS-BOT-BC289459  Hordeum murinum subsp. leporinum John H. Thomas 1962-4-24 9847 San Mateo San Bruno Mountain in northern part of county 396 Comment
  CAS-BOT-BC271352  Hordeum vulgare John H. Thomas 1971-4-25 15793 San Mateo Intersection of Interstate 280 and Sand Hill Road behind Stanford Univ. Campus Comment
  CAS-BOT-BC536139  Horkelia californica J. H. Thomas 1954-6-11 4273 San Mateo 0.8 mile north of Pescadero Creek 60 Comment
  CAS-BOT-BC536145  Horkelia californica J. W. Congdon 1897-8-11 s.n. San Mateo San Gregorio Comment
  CAS-BOT-BC536151  Horkelia californica Elizabeth McClintock 1965-6-13 s.n. San Mateo Colma Canyon, San Bruno Mountain Comment
  SEINET5554737  Horkelia californica H. S. Gentry 1931-1 76 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC144012  Horkelia marinensis George Oberlander 1951-7-12 1204 San Mateo Clearing in San Andreas Valley, San Francisco Watershed Reserve Comment
  JROH2769  Hypericum calycinum John Rawlings, Ann Lambrecht 2008-7-23 0935 San Mateo Jasper Ridge Biological Preserve, Stanford University; south side of SF Creek and west of the Low Flow Crossing 81 Comment
  UCD160239  Hypericum canariense Christopher Dillis 2015-5-15 1 San Mateo South of Pescadero on Hwy 1 (Cabrillo Hwy), 400 m south of Highway Brewing Company, then east 200 m on unmarked 1-lane dirt road; 60 m north-northeast of intersection with Old Coast Highway. 200 Comment
  JROH913  Hypochaeris glabra John H. Thomas 1965-4-28 10596 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH918  Hypochaeris glabra John H. Thomas 1975-4-19 17789 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET5554861  Hypochaeris glabra H. S. Gentry 1931-1 97 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  CAS-BOT-BC311486  Hypochaeris radicata Roxana S. Ferris 1917-10-19 727 San Mateo Crystal Springs Lakes Comment
  UCR266160  Ilex aquifolium A. C. Sanders 2015-12-22 41886 San Mateo San Francisco Bay Region, San Bruno Mountain, Summit Loop Trail above April Brook 274 Comment
  SJSU8192  Ipomoea indica D. W. Allen 1978-11-25 San Mateo grounds of residence Comment
  UC143469  Iris douglasiana Alice Eastwood Apr 1898 San Mateo Purissima Comment
  UCSB18476  Iris douglasiana Muirhead, M. 1964-4-17 San Mateo on Crocker Estate; Hillsborough; California 91 Comment
  UCSB880  Iris douglasiana Walker, Clifford 1954-4-20 San Mateo junction of Skyline Blvd and Highway to Half Moon Bay Comment
  CAS-BOT-BC133670  Iris longipetala Walter Knight; Irja Knight 1964-1-15 508 San Mateo South slope, Colma Canyon Comment
  SBBG1123  Iris longipetala H. and M. Dearing 1933-5-14 2766 San Mateo Skyline Boulevard, S of San Francisco Comment
  JROH4434  Iris pseudacorus John Hunter Thomas 1981-7-12 20693 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of lake Comment
  JROH4427  Iris pseudacorus J. H. Thomas 1958-5-11 7165 San Mateo Jasper Ridge Biological Preserve, Stanford University; along edge of Searsville Lake Comment
  RSA116774  Isoetes howellii W. R. Dudley 1909-10-31 s.n. San Mateo Woodside Valley pond. Comment
  SJSU15912  Isolepis carinata John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1738 San Mateo South end of Bean Hollow bluff trail west of Hwy 1 south of Pescadero 8 Comment
  CAS-BOT-BC112627  Isolepis cernua H. L. Mason 1921-6-2 s.n. San Mateo Pebble Beach, near Pescadero. Comment
  CAS-BOT-BC112628  Isolepis cernua H. L. Mason 1921-6-2 s.n. San Mateo Pebble Beach, near Pescadero. Comment
  OBI22587  Isolepis cernua Lewis S. Rose 1956-7-2 56117 San Mateo Skyline Blvd, Hills W of San Mateo 183 Comment
  POM185726  Isolepis cernua E. B. Copeland 1903-5-24 3258 San Mateo Montara Point. Comment
  SJSU15910  Isolepis cernua John Rawlings, Sara Timby, Toni Corelli 2016-4-23 1735 San Mateo Bean Hollow bluff trail west of Hwy 1 south of Pescadero 8 Comment
  CAS-BOT-BC112619  Isolepis cernua W. R. Dudley 1906-10-12 s.n. San Mateo Near sink 14. Comment
  CAS-BOT-BC340137  Jaumea carnosa Ray Pestrong 1963-11-8 s.n. San Mateo South San Francisco Bay. Near east Palo Alto, Dumbarton Bridge Comment
  CAS-BOT-BC340138  Jaumea carnosa Walter Knight; Irja Knight 1964-9-2 718 San Mateo San Bruno Mountain. At Pt. San Bruno Comment
  JROH2774  Juglans hindsii John H. Thomas 1980-11-18 20174 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC173842  Juncus balticus Peter Rubtzoff 1977-5-15 9020 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  UCR121578  Juncus bufonius George K. Helmkamp, E. A. Helmkamp 1999-6-28 5012 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  SEINET8544724  Juncus bufonius Charles Piper Smith 1905-4-1 728 San Mateo Stanford Univ. Roadside near Stockfarm bridge. Comment
  JEPS91286  Juncus bufonius var. bufonius Dean W. Taylor 1989-3-30 10200 San Mateo San Bruno Mountain, along Bayshore Avenue near PG&E substation, in right-of-way of eastern-most set of PGandE high- voltage lines 12 Comment
  JROH4455  Juncus bufonius var. bufonius John Rawlings 2012-5-25 1119 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the intersection of Road E and Trail 13 southeast of Searsville Lake. 112 Comment
  JROH4458  Juncus bufonius var. occidentalis John H. Thomas 1956-4-7 5619 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4467  Juncus bufonius var. occidentalis John Hunter Thomas 1978-4-25 19151 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC115873  Juncus effusus subsp. pacificus J. Rawlings 2013-7-23 2001 San Mateo Near Searsville Landing, W shore of Searsville Lake, Jasper Ridge Biological Preserve, Sand Brancisco Bay subregion. 105 Comment
  UCR244745  Juncus effusus var. pacificus Peter Rubtzoff, Roman Gankin 1975-9-11 8373 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction 213 Comment
  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
  UCSC007263  Juncus lescurii Randall Morgan 1987-4-29 s.n. San Mateo Ravine in 1st big gorge north of Comment
  JROH4484  Juncus occidentalis John Hunter Thomas 1978-5-16 19215 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CDA39185  Juncus occidentalis W. Plummer 1974-4-18 s.n. San Mateo Pescadero, Carlene Shade property. 0 Comment
  UCD164603  Juncus patens Peter Rubtzoff; Roman Gankin 1975-9-11 8375 San Mateo San Bruno Mountains. 'Saddle' area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH4505  Juncus xiphioides John H. Thomas 1967-6-1 12960 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4508  Juncus xiphioides John H. Thomas 1974-4-25 17195 San Mateo Jasper Ridge Biological Preserve, Stanford University. Top of ridge. Comment
  SJSU1797  Lactuca saligna C. W. Sharsmith 1956-10-22 6356 San Mateo San Mateo County Memorial Park, Pescadero Cr, Santa Cruz Mts Comment
  JROH952  Lactuca serriola John H. Thomas 1974-10-26 17633 San Mateo Jasper Ridge Biological Preserve, Stanford University 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
  POM53167  Lagophylla ramosissima C. F. Baker 1902-9-2 1554 San Mateo Crystal Springs Lake. Comment
  JROH969  Lagophylla ramosissima Carol Zabel, Ann Lambrecht, John Rawlings 2004-8-25 0053 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC339052  Lasthenia californica A. D. E. Elmer 1903-4-1 4738 San Mateo San Bruno Hills Comment
  CAS-BOT-BC339061  Lasthenia californica V. F. Hesse 1964-5-26 3205 San Mateo Pigeon Point 4 Comment
  CAS-BOT-BC339071  Lasthenia californica John Thomas Howell 1933-5-3 11204 San Mateo San Bruno Hills Comment
  CAS-BOT-BC339074  Lasthenia californica Lewis S. Rose 1933-4-30 33128 San Mateo Redwood City Comment
  CAS-BOT-BC339085  Lasthenia californica Roxana S. Ferris 1921-4-7 2128 San Mateo Santa Cruz Mountain Peninsula. San Bruno Mt. 213 Comment
  CDA33782  Lasthenia californica D. G. Kelch 2011-3-13 11 .047 San Mateo Pacifica. Along sea bluffs 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-BC339048  Lasthenia californica Elizabeth McClintock; Arthur Menzies 1963-2-16 s.n. San Mateo San Bruno Mountain. Below the top of the mountain in the vicinity of the radio station Comment
  CAS-BOT-BC339064  Lasthenia californica Elizabeth McClintock 1972-4-23 s.n. San Mateo San Bruno Mountain. Slope above Fern Rock Comment
  CAS-BOT-BC339083  Lasthenia californica W. R. Dudley 1893-5-17 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Millbrae Comment
  CAS-BOT-BC339092  Lasthenia californica David D. Keck 1933-5-11 2296 San Mateo Montara Light House and Radio Station Comment
  UC517467  Lasthenia californica subsp. californica John Thomas Howell 1933-5-3 11204 San Mateo San Bruno Hills Comment
  UC1598598  Lasthenia glabrata subsp. glabrata A. D. E. Elmer 1903-5-1 4426 San Mateo Millbrae Comment
Read comments
Sep 9 2011
  RSA262209  Lasthenia glabrata subsp. glabrata John H. Thomas 1971-5-2 15794 San Mateo Near intersection of Canada and Edgewater roads; about 3 miles westward from Redwood City. 152 Comment
  CAS-BOT-BC355542  Lasthenia glabrata var. glabrata John H. Thomas 1954-4-2 3793 San Mateo 1.5 miles east of center of Redwood City 0 Comment
  CAS-BOT-BC360403  Lasthenia glabrata var. glabrata Ned Cahill 1974-4-23 166 San Mateo Near intersection of Canada and Edgewood Roads, about 3 mi westward from Redwood City. Comment
  UC311550  Lasthenia gracilis A. D. E. Elmer 1903-4-1 4507 San Mateo San Bruno Hills Comment
  UCR121579  Lasthenia minor George K. Helmkamp, E. A. Helmkamp 1999-6-28 5013 San Mateo Pescadero Creek Watershed, Bean Hollow Road 0.3 mi south of Pescadero Road (SW of Pescadero). Slopes above Butano Creek 61 Comment
  SJSU11831  Lasthenia minor T. J. Sammis 1974-5-2 San Mateo Pescadero Rd 2.2 mi W of Pescadero Comment
  JROH5875  Lathyrus latifolius Ann Lambrecht 2011-8-2 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 2 between Trail 5 intersection and culvert Comment
  RSA22957  Lathyrus latifolius L. R. Abrams, I. L. Wiggins, D. Abrams 1939-6-3 421 San Mateo Roadside 3-4 miles east of San Gregorio, on La Honda Road. Comment
  JEPS22663  Lathyrus littoralis Irene Brown 1959-5-15 151 San Mateo w of Highway 1 (about 50 feet from Ocean, Sharp Park); Sharp Park 7 Comment
  RSA10272  Lathyrus littoralis H. A. Barker 1927-5-14 672 San Mateo North of Half Moon Bay. Comment
  UCD106381  Lathyrus littoralis W. R. Russell 1961-6-5 s.n. San Mateo 1 block west of business district, north end of Pacifica (formerly Sharp Park). Comment
  POM87741  Lathyrus vestitus subsp. bolanderi L. R. Abrams 1902-4-13 2342 San Mateo Crystal Springs Lake. Comment
  POM19355  Lathyrus vestitus subsp. vestitus C. F. Baker 1902-5-10 801 San Mateo Kings Mountain. Comment
  UC85315  Lathyrus vestitus var. vestitus C. F. Baker 1902-1-15 240 San Mateo w side Kings Mountain Comment
  UC913065  Layia chrysanthemoides David D. Keck 1932-5-6 1487 San Mateo near Skyline Boulevard (w of Millbrae Highlands) Comment
  CAS-BOT-BC323157  Layia chrysanthemoides David D. Keck 1932-5-6 1488 San Mateo 4 miles W of Burlingame on Skyline Boulevard. Comment
  CAS-BOT-BC323181  Layia chrysanthemoides K. Curran 1885-4-1 s.n. San Mateo Millbrae Comment
  CAS-BOT-BC321069  Layia gaillardioides Lewis S. Rose 1935-5-4 35149 San Mateo Burlingame 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-BC327460  Layia hieracioides Fred Hemphill 1973-4-15 689 San Mateo San Carlos. Chaparral area N of Malabar Rd and Melendy Dr. 207 Comment
  POM298251  Layia hieracioides D. D. Keck 1932-6-1 1796 San Mateo Above Searsville Lake, on la Honda Road, east slope of Santa Cruz Mts. Comment
  UC89183  Layia hieracioides Alice Eastwood 1899-5-2 San Mateo near Pt. San Pedro Comment
  CAS-BOT-BC327456  Layia hieracioides David D. Keck 1933-5-11 2306 San Mateo Skyline Boulevard, east of Salada, northern San Mateo County. Comment
  CAS-BOT-BC327470  Layia hieracioides John H. Thomas 1967-5-7 12825 San Mateo Sunset Beach State Park, about 4.5 miles SW of Watsonville. Comment
  POM298199  Layia hieracioides D. D. Keck 1933-5-11 2306 San Mateo Skyline Blvd, E of Salada, northern San Mateo County. Comment
  RSA21999  Layia hieracioides J. T. Howell 1938-5-1 13769 San Mateo Colma Canyon Comment
  SEINET8735276 Image available Layia nemorosa Lewis S. Rose 1935-1 35149 San Mateo Burlingame Comment
  JEPS127807  Layia platyglossa Adam C. Schneider with C. Matt Guilliams 2013-4-7 69 San Mateo Along dirt road running parallel to overhead power lines. GPS coordinates approximate. Comment
  JROH1000  Layia platyglossa John Hunter Thomas 1981-4-23 20476 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH991  Layia platyglossa John H. Thomas 1955-5-6 4085 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH999  Layia platyglossa John Hunter Thomas 1980-5-8 19944 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC204134  Layia platyglossa A. D. E. Elmer 1903-4-1 5022 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC382090  Layia platyglossa Elizabeth McClintock 1978-3-25 s.n. San Mateo Gilmore McDowell property, Woodside Comment
  CAS-BOT-BC382225  Layia platyglossa John Thomas Howell 1974-4-11 17130 San Mateo Serpentine area to the SE of Canada Road and Edgewood Road; NW of Woodside 152 Comment
  RSA128853  Layia platyglossa subsp. campestris W. R. Dudley 1909-4-27 s.n. San Mateo Whipple Road near Blacksmith shop between Woodside and Crystal Springs Lake. Plants of the Santa Cruz Mountain Peninsula. Comment
  CAS-BOT-BC527272  Lemna minuta Carl B. Wolf 1929-4-29 3660 San Mateo 10 miles south of San Franciscot on Skyline Blvd. Comment
  CAS-BOT-BC221537  Lepechinia calycina A. D. E. Elmer 1903-6-1 4416 San Mateo San Mateo Comment
  RSA218029  Lepechinia calycina Walter Knight, I. Knight 1964-5-19 s.n. San Mateo Crocker Hills, San Bruno Mountain. Comment
  UC76164  Lepechinia calycina Milo S. Baker 1904-5-15 San Mateo near Burlingame Comment
  RSA116666  Lepidium didymum H. L. Mason 1921-5-29 s.n. San Mateo Pebble Beach near Pescadero. Comment
  CDA19903  Lepidium latifolium D. Pendleton 2002-5-28 PDR P 120142 San Mateo San Francisco Bay Area; RR & Cedar St across the tracks from roller rink. 0 Comment
  JEPS127808  Lepidium nitidum Adam C. Schneider with C. Matt Guilliams 2013-4-7 70 San Mateo Along dirt road running parallel to overhead power lines. GPS coordinates approximate. Comment
  JROH1539  Lepidium nitidum Daniel Cohen 1953-4-11 11 San Mateo Jasper Ridge Biological Preserve, Stanford University; on north shore of Searsville Lake Comment
  CAS-BOT-BC12844  Lepidium pinnatifidum Phillip C. Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Brisbane Lagoon. Comment
  CAS-BOT-BC12954  Lepidium strictum David D. Keck 1933-5-11 2301 San Mateo Montara Summit, Montara Mountain. Comment
  CAS-BOT-BC12952  Lepidium strictum George Oberlander 1949-6-25 229 San Mateo San Francisco Watershed Reserve. On northern Cahill Ridge. Comment
  JROH5275  Leptochloa fusca subsp. uninervia John Hunter Thomas 1980-11-27 20179 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta in Searsville Lake (formed by Corte Madera Creek). Comment
  CAS-BOT-BC226602  Leptosiphon ambiguus John H. Thomas 1971-5-2 15866 San Mateo Near intersection of Canada Road and Edgewater [Edgewood] Road, about three miles westward from Redwood City 152 Comment
  JEPS58097  Leptosiphon androsaceus Adele Lewis Grant 936 San Mateo near Pescadero; Pebble Beach 3 Comment
  CAS-BOT-BC226731  Leptosiphon latisectus A. D. E. Elmer 1903-4-1 4746 San Mateo Cemeteries Comment
  RSA187442  Leptosiphon liniflorus James I. McMurphy 1906-5-8 s.n. San Mateo Near head of Crystal Lake Comment
  JROH3191  Leptosiphon parviflorus John Hunter Thomas 1981-4-23 20479 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA0103660  Leptosiphon parviflorus Arthur L. Cohen 1935-4-21 629 San Mateo Jasper Ridge, Stanford U. Santa Cruz Range; San Francisco Bay watershed. 152 Comment
  CAS-BOT-BC324053  Lessingia arachnoidea W. R. Dudley 1902-9-21 s.n. San Mateo By road east of Crystal Springs Reservoir, near fork to Alnus House, Santa Cruz Mountains Comment
  CAS-BOT-BC324055  Lessingia arachnoidea John Thomas Howell 1927-4-15 2325 San Mateo Crystal Springs Lake 213 Comment
  CAS-BOT-BC324067  Lessingia arachnoidea W. R. Dudley 1896-11-15 s.n. San Mateo Near Crystal Srings Reservoir, Santa Cruz Mountains Comment
  CAS-BOT-BC325499  Lessingia arachnoidea W. Spence 1960-7-2 555 San Mateo Along Route 5, Crystal Springs Lake Comment
  CDA8165  Lessingia arachnoidea M. Knudsen 1982-7-28 San Mateo Crystal Springs Reservoir, just below the dam. 0 Comment
  CAS-BOT-BC324068  Lessingia arachnoidea L. R. Abrams 1902-9-21 2996 San Mateo Crystal Lake Comment
  SJSU15430  Lessingia germanorum Toni Corelli 2011-9-14 720 c San Mateo Northeast of Hillside Park, above houses 107 Comment
  JROH1012  Lessingia glandulifera var. glandulifera Rachel Hays 1972-7-26 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lake Comment
  CAS-BOT-BC324179  Lessingia hololeuca Ned Cahill 1974-10-8 378 San Mateo near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  CAS-BOT-BC324180  Lessingia hololeuca Ned Cahill 1974-8-26 372 San Mateo near the intersection of Canada and Edgewood roads, about 3 miles westward from Redwood City. Comment
  RSA800278  Leucanthemum vulgare Peter Rubtzoff 1988-5-12 9922 San Mateo San Bruno Mountains, ''Saddle'' area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road between Bog Trail and Saddle Trail junctions. Comment
  UCD163782  Leucanthemum vulgare Peter Rubtzoff 1988-5-12 9922 San Mateo San Bruno Mountains, 'Saddle' area on north side of Guadalupe Canyon Parkway, west of Radio Road Junction, near old Guadalupe Road between Bog Trail and Saddle Trail junctions. Comment
  CAS-BOT-BC273564  Leymus californicus A. D. E. Elmer 1903-6-1 4700 San Mateo Toward Crystal Springs Lake from San Mateo Comment
  RSA108328  Leymus condensatus Frank W. Gould 1941-5-10 1293 San Mateo 1 mile north of Santa Cruz County line on Highway 1. Comment
  JEPS71199  Leymus triticoides William S. Cooper 1919-7-22 214 San Mateo Ano Nuevo Pt. Comment
  POM219276  Leymus triticoides H. F. Copeland 1929-7-4 1241 San Mateo La Honda Grade. Comment
  RSA195563  Leymus triticoides John H. Thomas 1963-5-20 10113 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  SEINET6633381  Ligusticum apiifolium A. D. E. Elmer 1903-1 4803 San Mateo San Mateo Comment
  JEPS32129  Lilaea scilloides W. L. Jepson 1923-10-18 10260 San Mateo Colma Comment
  CAS-BOT-BC451673  Lilaea scilloides H. L. Mason 1922-3-28 s.n. San Mateo Pigeon Pt. Comment
  SEINET11764872  Lilaea scilloides Unknown 1932-5-30 9189 San Mateo Lakes Los Francos Woods Comment
  CAS-BOT-BC389738  Lilium pardalinum J. Lovelle 1973-7-8 39 San Mateo Poscader [Pescadero] Cr. Comment
  SEINET12182117  Limnanthes douglasii Unknown 1932-1 9103 San Mateo Roadside between Spring Valley Lakes and Sky Line Drive Comment
  UC2046439  Limonium ramosissimum subsp. provinciale Whitney Thornton 2011-8-19 s.n. San Mateo Seal Slough Comment
  CAS-BOT-BC238362  Limosella aquatica W. R. Dudley 1909-10-10 s.n. San Mateo The Santa Cruz Mountain Peninsula. Near boat-landing of Club-House, Crystal Springs Reservoir Comment
  SEINET3696412 Image available Linanthus filipes Lewis S. Rose 1932-4-10 32140 San Mateo Redwood City. Comment
  CDA982  Linanthus liniflorus D. G. Kelch 2002-5-6 2 .011 San Mateo Crystal Springs Reservoir. Comment
  JROH5967  Linaria bipartita John Hunter Thomas 1982-5-25 20964 San Mateo Jasper Ridge Biological Preserve; roadside [Sand Hill Rd.] Comment
  CHSC57088  Linum bienne Steven Triano 1988-5-24 193 San Mateo Located ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  SEINET10634275  Linum grandiflorum Robert A. Norris 1977-5-2 Norris 3570 San Mateo Several annuals occurring locally as escapes in disturbed gravelly ground by Interstate Hwy. 280, just S of Farmhill Blvd. Exit, Woodside, San Mateo Co., California. Comment
  CAS-BOT-BC36071  Lithocarpus densiflorus var. densiflorus W. R. Dudley 1893-10-1 s.n. San Mateo Bear Gulch, Sierra Morena Comment
  CAS-BOT-BC430769  Lithophragma affine W. R. Dudley 1900-3-17 s.n. San Mateo Redwood stage road below Hookerville Comment
  RSA101014  Lithophragma heterophyllum G. Oberlander 1950-4-23 851 San Mateo Pilarcitos Canyon, San Francisco Watershed Reserve Comment
  CAS-BOT-BC342308  Logfia filaginoides Peter H. Raven 1950-4-16 1803 San Mateo Summit ridge, San Bruno Mts. 243 Comment
  CAS-BOT-BC342307  Logfia filaginoides George Oberlander 1950-4-23 767 San Mateo San Francisco Watershed Reserve. Top of Cahill Ridge Comment
  JROH735  Logfia gallica D. E. Breedlove 1971-5-31 19361 San Mateo Jasper Ridge Biological Preserve, Stanford University; short ridge east of stream leading into Searsville Lake Comment
  UC21264  Lomatium caruifolium var. caruifolium Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  UC1301125  Lomatium dasycarpum subsp. dasycarpum Helen K. Sharsmith 1963-2-16 5145 San Mateo summit San Bruno Mt.; San Francisco Bay Region, San Bruno Mt. 396 Comment
  CHSC65248  Lomatium dasycarpum subsp. tomentosum A. D. E. Elmer 1903-4-1 San Mateo Crystal Springs Lake. Comment
  JROH280  Lomatium macrocarpum John H. Thomas 1975-5-26 17909 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM132671  Lomatium macrocarpum A. D. E. Elmer 1903-04 4926 San Mateo Crystal Springs Lake. Comment
  JROH275  Lomatium macrocarpum John H. Thomas 1963-3-20 10026 San Mateo Jasper Ridge Biological Preserve, Stanford University; serpentine area on north side of ridge near Westridge end Comment
  CDA34371  Lomatium utriculatum E. Finley 1993-3-3 s.n. San Mateo Edgewood Park. 0 Comment
  SEINET7881745 Image available Lomatium utriculatum H. S. Yates 1935-1 5210 San Mateo 2 miles N. of Langley Hill Sec. 1 T. 7S. R.3W Comment
  CAS-BOT-BC240582  Lonicera hispidula Ned Cahill 1974-5-13 264 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  CAS-BOT-BC240593  Lonicera hispidula George Oberlander 1949-5-21 192 San Mateo San Francisco Watershed Reserve. Sawyer Ridge Comment
  CAS-BOT-BC240595  Lonicera hispidula Cherie Wetzel 1969-6-20 861 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  CAS-BOT-BC240600  Lonicera hispidula J. H. Thomas 1949-10-16 1157 San Mateo Between Skyline Drive and Searsville Lake 304 Comment
  SEINET8907183  Lonicera interrupta A. D. 1974-1 San Mateo hwy. 35 ca. 6 mi. from Jct. hwy. 92 701 Comment
  RSA187498  Lotus corniculatus John H. Thomas 1954-6-11 4271 San Mateo 0.8 miles north of Pescadero Creek. 30 Comment
  HSC24031  Lotus corniculatus Mary Katherine Wicksten 1971-6-28 131 San Mateo Huddart Park. Near Park Office. Comment
  SEINET957265  Lotus corniculatus Jane A. Reese 1966-1 131 San Mateo Whiskey hill road, 1 mile from junction with Woodside road. 152 Comment
  POM16716  Lotus formosissimus A. D. E. Elmer 1903-04 4860 San Mateo Lake San Andreas Comment
  UC15578  Lotus formosissimus J. Burtt Davy 1895-4-20 1030 San Mateo Lake San Andreas Comment
  JEPS55903  Lotus scoparius Dr. L. M. Newlon 1921-7-30 249 San Mateo Salada Comment
  UC311102  Lotus scoparius A. D. E. Elmer 1903-6-1 4447 San Mateo Belmont Comment
  HSC23955  Lotus unifoliolatus var. unifoliolatus Mary Katherine Wicksten 1971-6-22 92 San Mateo Huddart Park by horse ring Comment
  UC1129221  Lotus wrangelianus H. S. Yates 1935-5-8 5207 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. 579 Comment
  CAS-BOT-BC60246  Lunaria annua E. W. Rust 1908-3-28 s.n. San Mateo Vicinity of Stanford University. Woodside Post Office. Comment
  CAS-BOT-BC60247  Lunaria annua Alexander Locke 1963-5-19 31 San Mateo Belmont. 714 Alameda de los Pulgas. Comment
  SEINET5766860 Image available Lupinus affinis Dunn, Brown 1946-1 2542 San Mateo 3.7 miles northeast of La Honda on the southeast side of the Hwy; Sann Francisco Peninsula on Hwy from Woodside to la Honda Comment
  SEINET5766884 Image available Lupinus affinis Dunn 1946-1 2601 San Mateo top of Ganyon Rd., 0.7 mi E of jct with Skyline Blvd., jct is 20.8 mi from bridge on N side of Boulder Creek; San Francisco Peninsula Comment
  UC201919  Lupinus affinis A. D. E. Elmer April, 1903 5021 San Mateo Portola Comment
  SEINET10488355  Lupinus affinis David B. Dunn, Howard Brown 1946-5-16 Dunn 2601 San Mateo At the top of canyon road. 0.7 Mile e of the junction with skyline blvd, Junction being 20.8 miles from bridge on n side of boulder creek, on the summit Of the rolling hills of san francisco penninsula Comment
  JEPS64922  Lupinus albifrons W. L. Jepson 1921-4-3 9108 San Mateo Colma Canyon near Colma; Colma Canyon Comment
  SEINET10488392  Lupinus albifrons Randall 1907-7-23 RANDALL 199 San Mateo Near crystal springs lake Comment
  SEINET10488443  Lupinus albifrons Charles F. Baker 1902-5-4 Baker UMO 71685 San Mateo Crystal spring. Open sides of gulches, 9-18 dm high Comment
  SEINET10903755  Lupinus albifrons Charles Piper Smith 1948-4-23 Smith 48146 San Mateo Glabrous keel, abnormal could mean hybridization to formosus or chamissouris Hwy 5, junction s.f. Co jail 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
  RSA15300  Lupinus albifrons var. albifrons Carl B. Wolf 1927-4-3 270 San Mateo 1 mile above La Honda. Santa Cruz Mountains. Comment
  CAS-BOT-BC196112  Lupinus albifrons var. collinus Charles Piper Smith 1908-4-26 1417 San Mateo Side of San Bruno Mountain, south-east of Cemeteries Comment
  CAS-BOT-BC196120  Lupinus albifrons var. collinus Charles Piper Smith 1908-5-31 1437 San Mateo South San Francisco, in town Comment
  CAS-BOT-BC196131  Lupinus albifrons var. collinus Alice Eastwood 1914-3-12 3759 San Mateo San Bruno Hills Comment
  UC1300892  Lupinus albifrons var. collinus Helen K. Sharsmith 1963-2-16 5139 San Mateo lower open slopes San Bruno Mountain (above Daly City); San Francisco Bay Region, slopes of San Bruno Mountain 106 Comment
  SEINET10484535  Lupinus albifrons var. collinus Walter Knight, Irja Knight 1965-3-15 Knight 1225 San Mateo Low growing on open slopes. Colma canyon. San bruno mountains Comment
  CAS-BOT-BC27391  Lupinus apricus C. P. Smith 1908-4-13 1404 San Mateo Stanford University, Cedro Cottage Field. Comment
  UCD106655  Lupinus arboreus June McCaskill 1954-5-8 297 San Mateo Moss Beach. Comment
  UCR122975  Lupinus arboreus George K. Helmkamp, E. A. Helmkamp 2001-6-2 6797 San Mateo Central Coast, Purissima Creek Rd., 0.9 mi from Calif. Hwy 1(junction about 4 mi south of Half Moon Bay) 91 Comment
  SEINET10488469  Lupinus arboreus Mcclintock 1963-6-23 MCCLINTOCK s.n. San Mateo San bruno mountain. Top of mountain, near radio station Comment
  SEINET10488472  Lupinus arboreus Marcus E. Jones 1881-6-24 Jones s.n. San Mateo Comment
  UCSC004917  Lupinus arboreus Monica Larenas 1985-6-1 21 San Mateo Hwy 1, 3 mi N of Pescadero State Beach Comment
  JEPS101819  Lupinus arboreus var. eximius Dean W. Taylor 2000-4-25 17437 San Mateo along dirt road 1 mi W of North Peak, Montara Mountain 411 Comment
  JROH2115  Lupinus bicolor John H. Thomas 1975-4-19 17794 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2118  Lupinus bicolor John Hunter Thomas 1984-4-2 23273 3 H San Mateo Jasper Ridge Biological Preserve, Stanford University; near Westridge fence Comment
  UC2049881  Lupinus bicolor H. W. Johansen 1955-4-9 29 San Mateo Jones Gulch, 5 miles S of La Honda. Comment
  UC711948  Lupinus bicolor Charles Piper Smith 1908-4-13 1402 San Mateo near Cedro Cottage Stanford University (Stanford University) Comment
  HSC43288  Lupinus bicolor Dunn 1946-5-16 2596 San Mateo 1 block N of Sloat Blvd. at Vale Ave. Comment
  UCSB16952  Lupinus bicolor Schulte, John 1963-4-28 San Mateo Jasper Ridge; 3 mi. SW of Stanford Campus; front of Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  SEINET7545231  Lupinus bicolor subsp. pipersmithii C. P. Smith 1908-1 1403 San Mateo Stanford University. Cedro Cottage Field Comment
  SEINET10484957  Lupinus bicolor var. trifidus David B. Dunn, Howard Brown 1946-5-15 Dunn 2596 San Mateo Collected in meadow land in the bottom of a 50 ft. ravine with a small lake at one end; 1 block N of Sloat Blvd. at Vale Ave. Comment
  POM10690  Lupinus densiflorus var. palustris C. F. Baker 1902-5-1 850 San Mateo Crystal Springs Lake. Comment
  JROH2124  Lupinus latifolius var. latifolius John Hunter Thomas 1980-5-6 19921 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5799  Lupinus latifolius var. latifolius John Rawlings 2016-4-4 1701 San Mateo Jasper Ridge Biological Preserve, Stanford University; Douglas Iris site 94 Comment
  JEPS127786  Lupinus nanus Adam C. Schneider with C. Matt Guilliams 2013-4-7 57 San Mateo At high point of dirt road running parallel to transmission lines. Comment
  JROH2144  Lupinus nanus Toni Corelli 2010-3-29 363 San Mateo Jasper Ridge Biological Preserve, Stanford University. Edge of Road E at junction of Trail 11 and Trail 9 106 Comment
  UCSB16951  Lupinus nanus Schulte, John 1963-4-14 San Mateo Jasper Ridge, 3 miles SW of Stanford Campus, between Santa Clara Valley and main front of Santa Cruz Mountains 152 Comment
  SEINET5628417 Image available Lupinus nanus A. A. Heller 1907-4-20 8452 San Mateo Near Lake Merced. Comment
  SJSU10761  Lupinus nanus H. L. Elliot 1958-5-31 129 San Mateo Jasper Ridge 7 mi NW of Stanford Univ Comment
  SEINET10490840  Lupinus nanus subsp. nanus P. Wheeler 1965-6-19 Wheeler UMO 103951 San Mateo Crocker industrial park. Comment
  SD37926  Lupinus succulentus Delzie Demaree 1932-4-9 2135 San Mateo Comment
  SD39057  Lupinus tidestromii Edith A. Purer 1932-7-18 4009 San Mateo Half Moon Bay Comment
  HSC76497  Lupinus vallicola subsp. apricus Charles Piper Smith 1946-3-26 46118 San Mateo Wood side, 2.3 mi. N Comment
  POM276255  Lupinus vallicola subsp. apricus Lyman D. Benson 1930-5-1 2049 San Mateo Stanford University. 122 Comment
  UC1129739  Lupinus variicolor H. S. Yates 1935-2-8 5225 San Mateo 1 mi e Franklin Pt.; Santa Cruz Quad. Comment
  RSA134069  Lupinus variicolor W. R. Dudley 1900-3-17 s.n. San Mateo Grade south side Montara Mts. Comment
  SEINET5559201  Lupinus variicolor H. S. Gentry 1931-1 86 San Mateo Collected about 1 mile SE of Holy Cross Cemetery. Comment
  JROH4527  Luzula comosa var. comosa John Hunter Thomas 1981-4-23 20485 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC441361  Luzula subsessilis Elizabeth McClintock; Philip Wheeler 1967-5-14 34 San Mateo San Bruno Mountain: east side of mountain, above Harold Ave., Brisbane. Slope above Philip Wheeler's house Comment
  CAS-BOT-BC441374  Luzula subsessilis R. E. Frenkel 1964-5-22 505 San Mateo San Francisco Water District, 0.3 mile N of Sawyer Ridge Road, on Portola Ridge Road 268 Comment
  UC1057747  Luzula subsessilis F. A. Pitelka 1946-4-13 San Mateo one mi n Montara; n of Montara 30 Comment
  JROH3366  Lysimachia arvensis John H. Thomas 1975-4-19 17791 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC796711  Lythrum hyssopifolia Ira L. Wiggins 1949-7-2 12195 San Mateo on Pescadero Beach Pescadero Beach Comment
  UCR121566  Lythrum hyssopifolia George K. Helmkamp, E. A. Helmkamp 1999-6-28 4988 San Mateo Pescadero Creek Watershed, Pescadero Road just north of Loma Mar 107 Comment
  JROH2954  Lythrum hyssopifolia John H. Thomas 1967-6-1 12955 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JEPS79508 Image available Lythrum salicaria Edward Lee 1978-8-24 San Mateo Princeton Marsh Comment
  CDA19835  Lythrum salicaria R. Pummer 2001-11-21 PDR 064586 San Mateo San Francisco Bay Area; La Honda Homeowners Association on Entrada Rd. 0 Comment
  RSA210921  Madia Cherie L. Wetzel 1969-7-28 994 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  RSA176551  Madia capitata John H. Thomas 1963-7-19 10179 San Mateo Ano Nuevo Point Comment
  CAS-BOT-BC343901  Madia elegans George Oberlander 1949-9-25 369 San Mateo San Francisco Watershed Reserve. North of San Andreas L. Comment
  CAS-BOT-BC343912  Madia elegans David D. Keck 1932-6-18 1979 San Mateo Skyline Blvd., at Langley Hill. (S.W. of Stanford University) 600 Comment
  POM190414  Madia elegans subsp. vernalis D. D. Keck 1932-6-18 1979 San Mateo Skyline Boulevard, at Langley Hill (SW of Stanford University) 610 Comment
  JROH1039  Madia exigua John H. Thomas 1958-5-10 7141 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1041  Madia exigua John H. Thomas 1961-6-7 9531 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC344486  Madia exigua H. A. Dutton 1900-5-6 s.n. San Mateo Santa Cruz Mountain Peninsula. Woodside Comment
  CAS-BOT-BC343327  Madia gracilis L. R. Abrams 1920-6-1 7502 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City Comment
  JROH1092  Madia gracilis John Hunter Thomas 1988-5-12 24455 San Mateo Jasper Ridge Biological Preserve, Stanford University; by old quarry below dam Comment
  UC917256  Madia gracilis W. A. Harvey and J. M. Tucker 1948-6-29 1703 San Mateo beside road to, just w of junction with Highway 5 Portola State Park; Skyline Boulevard Comment
  POM298347  Madia madioides D. D. Keck 1932-5-11 1497 San Mateo Above Woodside on La Honda road, east slope of Santa Cruz Mountains 229 Comment
  CAS-BOT-BC345114  Madia sativa David D. Keck 1933-11-2 2628 San Mateo 3.5 mi. S.W. of Pescadero, within 100 m. of ocean Comment
  CAS-BOT-BC353474  Madia sativa Peter Rubtzoff 1979-7-26 9300 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road Junction, San Bruno Mountains. Comment
  JROH1102  Madia sativa John H. Thomas 1973-6-10 16812 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  LA83388  Madia sativa O. H. Kappler; 1947-5-23 San Mateo Pescadero Beach Comment
  POM204315  Madia sativa I. L. Wiggins 1929-7-4 3796 San Mateo Pescadero Beach Comment
  POM284995  Madia sativa Lyman Benson 1935-5-5 6543 San Mateo Lake Searsville. Stanford University. Santa Cruz Mtn range. S.F. Bay watershed. 152 Comment
  JROH4702  Maianthemum racemosum John Hunter Thomas 1989-6-17 24777 San Mateo Jasper Ridge Biological Preserve, Stanford University 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-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
  CAS-BOT-BC512114  Maianthemum racemosum subsp. amplexicaule Margaret A. Barry 1937-5-15 131 San Mateo Woods on Coal Mine Ridge 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
  UC138326  Malacothamnus davidsonii J. W. Congdon 1897-7-27 San Mateo Belmont Comment
  UCD54555  Malva arborea Ellen Dean; Tom Starbuck, Margaret Starbuck 2005-10-16 2745 San Mateo Town of Miramar, N of Half Moon Bay. Along Mirada Rd. on coastal bluff overlooking beach. Comment
  CAS-BOT-BC206684  Malva assurgentiflora Ira L. Wiggins 1975-5-26 22161 San Mateo Upper slope of bank of San Francisquito Creek, ca 150 m upstream from Chaucer/Pope Street Bridge, Menlo Park Comment
  JROH2966  Malva nicaeensis John H. Thomas 1970-7-5 15672 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA141087  Malvella leprosa John H. Thomas 1960-6-25 8787 San Mateo Redwood City. Along or near a small creek running into Redwood Slough between El Camino Real and railroad tracks, near Maple Street. 8 Comment
  CHSC28453  Marah fabacea Robert A. Schlising 1963-3-15 2449 San Mateo Along Skyline Blvd., near junction with Half Moon Bay Road. Comment
  RSA176523  Marah fabacea John H. Thomas 1961-4-29 1995 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto. Comment
  RSA8532  Marah fabacea J. T. Howell 1933-4-9 10970 San Mateo Between Pescadero and Pigeon Pt. Comment
  SD99478  Marah fabacea Ira L. Wiggins 1975-4-17 22145 San Mateo Northeast side of Southern Pacific right of way, between Willow Road and San Francisquito Creek, Menlo Park. Comment
  CDA34452  Marah oregana M. Beyers, Z. Bakman, L. Feely, & D. Sozanni 2011-4-4 872 San Mateo Pacifica: San Pedro Valley County Park, along Brooks Creek Trail. 148 Comment
  UC25352  Marrubium vulgare Michener and Bioletti Sept. 1891 San Mateo San Bruno Road Comment
Read comments
Jul 2 2009
  JROH5783  Matricaria discoidea John Rawlings 2016-4-26 1758 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rd E near Trail 13. 105 Comment
  JROH618  Matricaria discoidea John H. Thomas 1975-4-19 17793 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET3816869  Matricaria discoidea Cynthia Taylor 1971-6-8 151 San Mateo Corner of watkins avenue and railroad tracks, Atherton 17 Comment
  CAS-BOT-BC422674  Meconella californica C. F. Baker 1902-4-6 457 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC422683  Meconella californica Miss E. Cannon 1898-3-26 s.n. San Mateo South San Francisco Comment
  CAS-BOT-BC422685  Meconella californica Arthur Menzies 1972-4-9 s.n. San Mateo San Bruno Mountain. Buckeye Canyon south of Crocker Industrial Park. Comment
  JROH2164  Medicago polymorpha John H. Thomas 1967-5-10 12840 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SD99483  Medicago polymorpha Ira L. Wiggins 1975-4-12 22139 San Mateo Northeast side of Southern Pacific right-of-way, between San Francisquito Creek and Ravenswood Avenue, Menlo Park. Comment
  CAS-BOT-BC157959  Medicago polymorpha var. brevispina Peter Rubtzoff 1977-4-16 8952 A San Mateo San Bruno Mountains. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Along west side of East Fork Colma Creek canyon Comment
  CAS-BOT-BC269472  Melica californica L. R. A. 1902-5-4 2407 San Mateo Woodside Comment
  JROH5299  Melica californica W. H. Lennihan 1990-4-12 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Right side of trail leading from serpentine hill to oak woodlands. Comment
  POM204770  Melica californica C. F. Baker 1903-4-6 1892 San Mateo San Bruno Hills. Comment
  POM87694  Melica californica Le Roy Abrams 1902-5-4 2407 San Mateo Woodside. Comment
  UC1738811  Melica californica var. californica Dean W. Taylor 1988-3-30 9489 San Mateo San Bruno Mountain, northern slope of southeast ridge of the mountain, near the ridgecrest; right-of-way of eastern-most set of PGandE high-voltage powerlines crossing the mountain 176 Comment
  JROH5301  Melica imperfecta John H. Thomas 1977-5-14 18609 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC264240  Melica torreyana John H. Thomas 1961-5-14 9374 A San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek, San Francisco Watershed Reserve 152 Comment
  SEINET3561264 Image available Melica torreyana Lewis S. Rose 1932-5-3 32216 San Mateo San Bruno. 183 Comment
  JROH2179  Melilotus albus John H. Thomas 1976-10-16 18401 San Mateo Jasper Ridge Biological Preserve, Stanford University; in Searsville Lake at the mouth of Corte de Madera Creek Comment
  RSA101010  Melilotus albus G. Oberlander 1949-10-8 404 San Mateo Lower Crystal Springs Lake, San Francisco Watershed Reserve. Comment
  JROH2187  Melilotus indicus John H. Thomas 1973-6-15 16838 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2195  Melilotus indicus John Hunter Thomas 1983-5-23 22240 A San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack side & low-flow crossing Comment
  JROH2198  Melilotus indicus John Hunter Thomas 1988-6-2 24497 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2803  Melissa officinalis John Hunter Thomas 1992-7-24 25384 A San Mateo Jasper Ridge Biological Preserve, Stanford University; along causeway Comment
  JROH2810  Mentha pulegium John H. Thomas 1976-10-16 18398 San Mateo Jasper Ridge Biological Preserve, Stanford University; in Searsville Lake at the mouth of Corte de Madera Creek Comment
  POM177458  Mercurialis annua L. R. Abrams, I. L. Wiggins 1930-11-13 179 San Mateo 3 miles S of Rockaway Beach (Pedro Valley) Comment
  UCD148357  Mercurialis annua T. C. Fuller 1960-6-23 4542 San Mateo east fence line, Sanchez Adobe House, south side of Linda Mar Blvd., Pedro Valley. Comment
  UCD96998  Mesembryanthemum nodiflorum Malcolm A. Nobs; S. Galen Smith 1949-8-27 1623 San Mateo E of Redwood City. Comment
  CAS-BOT-BC428898  Micranthes californica James McMurphy 1902-3-22 s.n. San Mateo Above Portola Comment
  JROH1129  Micropus californicus var. californicus John Hunter Thomas 1982-4-28 20872 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1149  Microseris douglasii subsp. douglasii John Hunter Thomas 1988-5-3 24438 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1153  Microseris douglasii subsp. douglasii John Rawlings, Toni Corelli 2010-5-19 0928 San Mateo Jasper Ridge Biological Preserve, Stanford University. Uphill from Trail 20. 88 Comment
  POM87986  Microseris douglasii subsp. douglasii L. R. Abrams 1902-5-4 2418 San Mateo Woodside. Comment
  CAS-BOT-BC349018  Microseris douglasii subsp. douglasii W. R. Dudley 1906-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. Alpine Road near Strawberry Bend Comment
  CAS-BOT-BC349035  Microseris douglasii subsp. douglasii Lewis S. Rose 1956-5-28 56079 A San Mateo Skyline Blvd w. of San Mateo 182 Comment
  SEINET5713334  Microseris douglasii subsp. douglasii Kenton L. Chambers 1953-1 463 San Mateo 3.2 mi N of Woodside on road to Crystal Springs Lake.; Woodside Comment
  RSA184976  Microseris douglasii subsp. tenella L. S. Rose 1966-5-2 66037 -B San Mateo Emerald Lake, west of Redwood City. 91 Comment
  CAS-BOT-BC349147  Microseris douglasii subsp. tenella L. R. Abrams 1918-4-30 7212 San Mateo San Bruno Hills, Bay Shore [Bayshore] road Comment
  JEPS87275  Mimulus aurantiacus var. aurantiacus David M. Thompson 1992-6-3 1105 San Mateo 1.2 mi s Hwy. 35 (Skyline Blvd.) (along Hwy. 84 (La Honda Road)) 340 Comment
  JROH4071  Mimulus aurantiacus var. aurantiacus Richard L. Garber 1971-5-18 21 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA1950  Mimulus aurantiacus var. aurantiacus Carl B. Wolf 1930-11-5 1804 San Mateo one-half way up east side of the La Honda Grade, Santa Cruz Mtns. 305 Comment
  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
  UC1080543  Mimulus aurantiacus var. aurantiacus S. S. Tillett and I. Sternback 1956-6-25 539 San Mateo along road into Portola State Park 396 Comment
  UCSB11439  Mimulus aurantiacus var. aurantiacus Olson, Jim 1962-4-17 San Mateo 1 mile east of Halfmoon Bay on road to San Mateo 18 Comment
  RSA53515  Mimulus glaucescens Edward L. Greene s.n. San Mateo Crystal Springs Lake. Frequent along banks, specially shady places. Comment
Read comments
Jul 13 2018
  POM5178B  Mimulus guttatus C. F. Baker 1902-5-4 759 San Mateo Woodside. 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
  SEINET12269870  Mimulus guttatus var. grandis Unknown 1932-1 9123 San Mateo Half Moon Bay 0 Comment
  CAS-BOT-BC388835  Minuartia douglasii John H. Thomas 1971-5-2 15813 San Mateo Near intersection of Canada Road and Edgewater Road, about three miles westward from Redwood City 152 Comment
  CAS-BOT-BC388829  Minuartia douglasii W. R. Dudley 1896-4-4 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Crystal Springs Lake Comment
  JROH1706  Minuartia douglasii Carol Zabel 1989-5-5 15 San Mateo Jasper Ridge Biological Preserve, Stanford University; Herb's serpentine loop, top of Trail 5 Comment
  RSA18453  Monardella villosa Carl B. Wolf 1927-6-29 554 San Mateo South of Pebble Beach near Pescadero. Comment
  CAS-BOT-BC214063  Monardella villosa Lewis S. Rose 1965-6-15 65080 San Mateo South of parking lot near summit, San Bruno Mountain 365 Comment
  CAS-BOT-BC214073  Monardella villosa George Oberlander 1949-6-25 219 San Mateo Cahill Ridge, San Francisco Watershed Reserve Comment
  CAS-BOT-BC214075  Monardella villosa Elizabeth McClintock 1965-3-25 s.n. San Mateo North Power Line Ridge, San Bruno Mountain Comment
  CAS-BOT-BC214081  Monardella villosa Cherie Wetzel 1969-7-8 920 San Mateo Near Canada College, Redwood City, just off of Farm Hill Blvd. Comment
  SEINET13948725 Image available Monardella villosa Lewis S. Rose 1950-1 50135 San Mateo Emerald Lake region, hills W of Redwood City, alt ca 800 ft 244 Comment
  SEINET10928196  Monardella villosa subsp. franciscana A. Graff 1993-6-14 Graff 6 San Mateo 0.6 miles down Bean Hollow Road from its intersection with Pescadero Road, along right road cut. Windy, exposed, dry, steep, rocky cuts. Locally infrequent, with Artemisia californica, Baccharis pilularis, Mimulus aurantiacus, Eriophyllum stachaedifolium, Anaphalis margaritacea, Dudleya sp., Scrophularia californica, Eriogonum sp., grasses. Comment
  JROH2849  Monardella villosa subsp. villosa John Hunter Thomas 1983-6-29 22712 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC349586  Monolopia major Le Roy Abrams 1898-5-1 s.n. San Mateo New Grade Road, Santa Cruz Mts. Comment
  UCD163600  Morella californica Peter Rubtzoff 1980-12-11 9634 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
  JEPS127796  Muilla maritima Adam C. Schneider with C. Matt Guilliams 2013-4-7 65 San Mateo Along dirt road running parallel to the overhead power transmission lines. Comment
  UC13848  Muilla maritima Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  CDA5599  Myosotis discolor Wm. Davis 1959-5-15 2398 San Mateo Woodlawn Cemetery, Colma. 0 Comment
  JROH1398  Myosotis latifolia John Hunter Thomas 1983-4-5 21326 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  UCSB11661  Myosotis latifolia Olson, Jim 1962-4-15 San Mateo 8 miles north of junction with Portola State Park Road on Camp Pomponio Road; 10 miles southwest of La Honda 213 Comment
  RSA15200  Myrica californica Carl B. Wolf 1926-10-19 77 San Mateo West of summit of La Honda Grade, Santa Cruz Mountains. Comment
  CAS-BOT-BC101772  Myrica californica Phillip C. Wheeler 1965-7-7 s.n. San Mateo Canyon south of Pig Ranch Comment
  JROH2702  Myriophyllum aquaticum M. Whitley 1990-4-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. By the floats in Searsville Lake. Comment
  RSA10397  Myriophyllum sibiricum Carl B. Wolf 1927-6-15 s.n. San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  CAS-BOT-BC259766  Nassella cernua Walter & Irja Knight 1965-5-15 s.n. San Mateo San Bruno Mountain. Pig Ranch Ravine Comment
  POM295476  Nassella pulchra Lyman Benson 1930-4-17 2080 San Mateo Stanford University. 152 Comment
  SBBG115413  Nassella pulchra B. Crampton 1962-6-11 6486 San Mateo ca. 5 mi W of Belmont, at jct of Ralston Ave and Skyline Blvd, Pulgas Ridge, along E side of lower Crystal Springs Reservoir Comment
  JROH3204  Navarretia heterodoxa John Hunter Thomas 1983-6-29 22705 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC762302  Navarretia heterodoxa R. F. Hoover 1941-5-20 5111 San Mateo Redwood City hills Redwood City Comment
  RSA10401  Navarretia squarrosa C. B. Wolf 1927-6-15 2169 San Mateo Along Skyline Drive, 8 mi. S of San Francisco. Comment
  SEINET3861929  Navarretia squarrosa Genevieve K. Walden 2009-5-21 140 San Mateo Pillar Point, north of Vandenberg Radar Base, along trails of public access land.; 0 Comment
  JROH2753  Nemophila John Hunter Thomas 1991-4-25 24994 San Mateo Jasper Ridge Biological Preserve, Stanford University. Rattlesnake Rocks Comment
  UC1301146  Nemophila menziesii Helen K. Sharsmith 1963-2-16 5132 a San Mateo above Daly City (lower open slopes of San Bruno Mountain); San Francisco Bay Region, San Bruno Mountain 106 Comment
  RSA101011  Nemophila menziesii var. atomaria G. Oberlander 1950-4-2 569 San Mateo Near San Andreas Lake, San Francisco Watershed Reserve Comment
  JROH5546  Nemophila menziesii var. menziesii John Rawlings 2013-4-13 1195 San Mateo Jasper Ridge Biological Preserve, Stanford University; southeast side of creek and about 75 meters upstream of bridge on Trail 11 136 Comment
  POM289745  Nemophila menziesii var. menziesii Lyman Benson 1930-5-1 2067 San Mateo Stanford University. San Lorenzo Mt. Range. 91 Comment
  CAS-BOT-BC219471  Nemophila parviflora Margaret A. Barry 1937-5-15 122 San Mateo On Coal Mine Ridge Comment
  CAS-BOT-BC219474  Nemophila parviflora Alice Eastwood 1922-5-27 11325 San Mateo La Honda Comment
  CAS-BOT-BC219485  Nemophila parviflora L. Constance 1938-5-16 2241 San Mateo Near Crystal Springs Lake, 5 miles southwest of San Mateo 121 Comment
  CAS-BOT-BC219483  Nemophila parviflora Ira L. Wiggins 1925-4-1 1670 San Mateo On Kings Mountain Road above Woodside Comment
  JROH5667  Nemophila parviflora var. parviflora John Rawlings 2014-3-31 1243 San Mateo Jasper Ridge Biological Preserve, Stanford University; along uphill side of Rd G just south of small drainage south of Rd G intersection with Rd J. 107 Comment
  UCSC007766  Nuttallanthus texanus Becky Hendricks 2012-5-16 s.n. San Mateo Ano Nuevo State Park Comment
  CAS-BOT-BC140425  Oemleria cerasiformis A. D. E. Elmer 1903-3-1 4579 San Mateo Woodside Comment
  CAS-BOT-BC140445  Oemleria cerasiformis A. D. E. Elmer 1903-3-1 4579 San Mateo Woodside Comment
  UC555631  Oemleria cerasiformis Herbert L. Mason 1927-4-23 3693 San Mateo near Pescadero Creek (along La Honda road) Comment
  UCD23290  Oemleria cerasiformis Alan T. Whittemore 1976-5-29 102 San Mateo Intersection of Polyhemus Creek Road and Ticonderoga Street, San Mateo. 140 Comment
  UC2061401  Oenothera elata subsp. hookeri H. W. Johansen 1958-5-18 23 San Mateo Coast Hwy 1, S of Pescadero Comment
  JROH3082  Oenothera elata subsp. hookeri Fay Gilbert 1920-5-31 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake Comment
  UCD18548  Oenothera elata subsp. hookeri Roman Gankin 1950-7-9 19 San Mateo 1 mile west of city of Pescadero toward State Hwy 1. Along the roadside. Swamp nearby. Near ocean. 15 Comment
  SEINET200711  Orobanche californica subsp. californica L. M. Newlon 1919-9-7 68 San Mateo Pillar Point northern end of Half Moon Bay Comment
  RSA0066487  Orobanche californica subsp. californica E. B. Copeland 1903-6-5 3330 San Mateo Montara Point. Comment
  JEPS121488  Orobanche fasciculata Adam C. Schneider with C. Matt Guilliams 2013-5-17 189 San Mateo Crystal Springs Reservoir Comment
  JROH5801  Orobanche fasciculata John Rawlings 2017-6-12 2102 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 12 on bank just west of first footbridge. 108 Comment
  UC1125589  Orobanche fasciculata C. J. Kraebel 1934-4-15 8 San Mateo Head of Pescadero Creek. Santa Cruz Quad. Comment
  CAS-BOT-BC500166  Orobanche fasciculata David D. Keck 1932-6-18 1982 San Mateo Skyline Blvd., at Langley Hill (SW of Stanford Uniersity) 600 Comment
  CAS-BOT-BC502963  Orobanche vallicola Burleigh H. Murray 1929-7-20 s.n. San Mateo Beresford, near San Mateo Comment
  SEINET3819130 Image available Orthocarpus densiflorus Lewis S. Rose 1932-4-10 32141 San Mateo Atherton. Comment
  RSA130958  Orthocarpus erianthus var. erianthus Hester R. Davis 1920-4-8 s.n. San Mateo Near San Francisquito Creek. Comment
  RSA184905  Orthocarpus erianthus var. roseus L. S. Rose 1965-3-25 65010 San Mateo San Bruno Mountains, north end. 122 Comment
Read comments
Mar 28 2016
  POM15377  Orthocarpus floribundus A. D. E. Elmer 1903-04 4522 San Mateo South San Francisco. Comment
  POM15668  Orthocarpus lithospermoides A. D. E. Elmer 1903-06 4420 San Mateo Crystal Springs Lake. Comment
  POM286414  Orthocarpus purpurascens Lyman D. Benson 1930-5-1 2051 San Mateo Stanford Univ.; San Lorenzo mt. range. 122 Comment
  UCR133535  Osmaronia cerasiformis Lyman Benson 1929-3-5 978 San Mateo road from Searsville Lake to Kings Mountain 610 Comment
  RSA176714  Osmorhiza berteroi John H. Thomas 1963-6-23 10168 San Mateo Jasper Ridge Biological Experimental Area, about 5 mi SW of Palo Alto. Along road at Westridge end of ridge Comment
Read comments
Feb 15 2013
  POM139435  Oxalis oregana A. D. E. Elmer 1903-03 4532 San Mateo Portola Comment
  JROH5340  Panicum miliaceum subsp. miliaceum Ann Lambrecht 2000-9-11 1 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera Creek. Comment
  CDA12444  Parentucellia viscosa G. F. Hrusa 1987-5-21 5342 San Mateo Ano Nuevo State Beach near visitor center. Comment
Read comments
Mar 2 2010
  JROH5351  Paspalum distichum John Rawlings 2011-9-4 1094 San Mateo Jasper Ridge Biological Preserve, Stanford University. At base of dam at trail terminus. 88 Comment
  JROH1400  Pectocarya pusilla J. I. McMurphy 1911-5-11 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC266632  Pedicularis Ned Cahill 1975-2-21 402 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles from Redwood City Comment
  JROH4096  Pedicularis densiflora James Newman 1951-4-21 44 San Mateo Jasper Ridge Biological Preserve, Stanford University; Searsville Lake, above lake 91 Comment
  JROH4115  Pedicularis densiflora John Hunter Thomas 1978-4-20 19094 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4118  Pedicularis densiflora John Hunter Thomas 1982-1-3 20794 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC886634  Pedicularis densiflora Lewis S. Rose 1939-4-12 39061 San Mateo Crystal Springs Lake 152 Comment
  UCR131712  Pedicularis densiflora C. B. Wolf 1927-2-26 00221 San Mateo La Honda Grade 305 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
  RSA130343  Pedicularis densiflora H. A. Lewis 1908-4-30 s.n. San Mateo Los Trancos. Comment
  RSA40106  Pedicularis densiflora L. S. Rose 1946-3-31 48031 San Mateo Millbrae Highlands. 91 Comment
  CAS-BOT-BC266669  Pedicularis dudleyi W. R. Dudley 1903-5-2 s.n. San Mateo Santa Cruz Peninsula. Near fork of road to old Page Mill Comment
  CAS-BOT-BC207027  Pelargonium vitifolium Rimo Bacigalupi 1922-3-29 s.n. San Mateo Roadside between Pigeon Pt. and Arroyo de los Frijoles Comment
  CAS-BOT-BC207028  Pelargonium vitifolium Roland M. Block 1894-5-1 s.n. San Mateo King's Mountain Comment
  JROH6183  Pellaea mucronata var. mucronata John Rawlings 2017-12-19 2308 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near south border of Preserve just east of Westridge fork of Corte Madera Creek. 134 Comment
  JROH109  Pentagramma triangularis subsp. triangularis John H. Thomas 1968-3-17 14194 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH115  Pentagramma triangularis subsp. triangularis John Hunter Thomas 1981-4-23 20487 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UC812463  Pentagramma triangularis subsp. triangularis Lewis S. Rose 1938-2-23 38082 San Mateo Woodside 152 Comment
  UCSB25635  Pentagramma triangularis subsp. triangularis Masero, Ann 1967-3-21 San Mateo Butano Creek, 3.3 miles east of junction of Cloverdale Road and Canyon Road 106 Comment
  JROH312  Perideridia kelloggii John H. Thomas 1975-7-31 17981 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3246  Persicaria amphibia John H. Thomas 1970-7-5 15676 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC419156  Persicaria maculosa George Oberlander 1949-7-24 317 San Mateo San Francisco Watershed Reserve. San Andreas Lake Comment
  RSA15277  Petasites palmatus C. B. Wolf 1927-4-3 243 San Mateo 1 mile above La Honda. Santa Cruz Mountains Comment
  POM87739  Petunia parviflora L. R. Abrams 1902-9-21 2994 San Mateo Crystal Lake Comment
  RSA120041  Petunia parviflora W. R. Dudley 1909-10-31 s.n. San Mateo Searsville Lake. The Santa Cruz Mtn Peninsula. Comment
  RSA149147  Phacelia distans John H. Thomas 1961-5-13 9334 San Mateo Franklin Point. Comment
  UC306570  Phacelia distans A. D. E. Elmer April 1903 4862 San Mateo San Pedro Comment
  RSA184848  Phacelia malvifolia L. S. Rose 1965-5-3 65057 San Mateo San Bruno Mountain, Colma Canyon. 61 Comment
  RSA21847  Phacelia malvifolia J. T. Howell 1938-5-1 13768 San Mateo Colma Canyon. Comment
  SJSU15764  Phacelia ramosissima Toni Corelli 2010-5-17 630 San Mateo Pescadero State Beach and Marsh Natural Preserve, west side of Hwy. 1, along trail in dunes south of north parking lot 10 Comment
  JROH5360  Phalaris aquatica John Hunter Thomas 1981-9-24 20745 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA187374  Phalaris aquatica John H. Thomas 1958-8-1 7375 San Mateo Just N of mouth of San Gregorio Creek 30 Comment
  CAS-BOT-BC259002  Phalaris californica Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain. Base of Quarry #2 Comment
  CAS-BOT-BC259011  Phalaris californica Ned Cahill 1974-7-14 363 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  UC204158  Phalaris californica A. D. E. Elmer June, 1903 4699 San Mateo Crystal Springs Lake Comment
  UCD37957  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, along eastern side of lower Crystal Springs Reservoir. Comment
  JROH5382  Phalaris lemmonii John Hunter Thomas 1970-4-29 15613 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC250647  Phalaris minor Paul Arnaud 1941-5-3 s.n. San Mateo Redwood City, Jefferson Avenue Comment
  POM199090  Phalaris minor A. D. E. Elmer 1903-06 4427 San Mateo Crystal Springs Lake. Comment
  UC820505  Phalaris minor John Thomas Howell 1937-7-5 13099 San Mateo along Bayshore Highway Redwood City Comment
  RSA17944  Phalaris paradoxa C. B. Wolf, Le Roy Abrams 1927-6-4 s.n. San Mateo San Gregorio Comment
  SJSU16000  Phalaris paradoxa John Rawlings 2006-6-26 860 San Mateo Edgewood Preserve's West Kiosk (intersection of Edgewood and Serpentine Loop trails) 184 Comment
  JROH4290  Phoradendron serotinum subsp. tomentosum John H. Thomas 1960-3-1 8536 San Mateo Jasper Ridge Biological Preserve, Stanford University 182 Comment
  UCD18545  Phyla nodiflora Roman Gankin 1950-7-8 13 San Mateo city of Menlo Park, Hermosa Way, along roadside. 30 Comment
  SJSU4276  Phyllospadix scouleri E. B. Woon 1957-5-31 227 San Mateo Pigeon Point Comment
  RSA647542  Phyllospadix torreyi Judy Hansen 1969-6-29 s.n. San Mateo Pidgeon Point. Comment
  CAS-BOT-BC142184  Physocarpus capitatus W. R. Dudley 1894-4-21 s.n. San Mateo San Mateo Creek - Santa Cruz Peninsula Comment
  POM139635  Physocarpus capitatus A. D. E. Elmer 1903-07 4804 San Mateo Portola. Comment
  POM139821  Physocarpus capitatus C. F. Baker 1902-5-4 747 San Mateo Woodside. Comment
  POM222904  Physocarpus capitatus J. P. Rose 1909-4-17 s.n. San Mateo Los Trancos Creek. 61 Comment
  SEINET10542162  Physocarpus opulifolius Charles H. Boxmeyer 1894-1 Boxmeyer s.n. San Mateo Comment
  CDA34334  Pickeringia montana Anonymous 1973-5-8 San Mateo Hwy 84, three miles W of Woodside. 0 Comment
  SEINET12151539  Pickeringia montana R. S. Croker 1929-1 s.n. San Mateo Near Shelf Lire Dr. (?) Comment
  CAS-BOT-BC206937  Pickeringia montana var. montana Daniel Cohen 1953-5-9 86 San Mateo La Honda Road nera Skyline Drive Comment
  CAS-BOT-BC206938  Pickeringia montana var. montana Volney Rattan 1882-5-1 s.n. San Mateo Belmont Comment
  JROH2203  Pickeringia montana var. montana John H. Thomas 1976-5-26 18147 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Shack Comment
  CAS-BOT-BC72843  Pinus radiata Walter Knight; Irja Knight 1964-9-30 s.n. San Mateo San Bruno Mountain, Cable Ravine Comment
  JEPS121040  Pinus radiata Adam C. Schneider with C. Matt Guilliams 2013-3-8 40 San Mateo Crystal Springs Reservoir, Northern part of western margin of San Francisco Public Utilities Commission land. Comment
  JEPS48202  Pinus radiata W. L. Jepson 1910-8-18 4166 San Mateo Ano Nuevo Creek Comment
  LA16839  Pinus radiata C. B. Wolf; 1934-11-9 6439 San Mateo Ano Nuevo Point to Pigeon Point 45 Comment
  JROH4769  Piperia John Hunter Thomas 1991-4-4 25081 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC136531  Piperia candida A. D. E. Elmer 1903-8-1 5058 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC137311  Piperia elegans James McMurphy 1906-8-24 s.n. San Mateo Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC389707  Piperia elegans L. Sigal 1969-8-1 51 San Mateo Field redacted by CAS, contact the data manager for more information Comment
  POM64748  Plagiobothrys chorisianus C. F. Baker 1902-3-30 429 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC228126  Plagiobothrys chorisianus Peter H. Raven 1950-4-16 1816 San Mateo Between Geneva Avenue (San Francisco County) and San Bruno Mountains 182 Comment
  CAS-BOT-BC228132  Plagiobothrys chorisianus Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountains. About half way down Devil's Arroyo Comment
  RSA216143  Plagiobothrys chorisianus P. H. Raven 1954-5-16 s.n. San Mateo North of mouth of Lobos Creek, Presidio Comment
  SD73208  Plagiobothrys chorisianus var. chorisianus Darley F. Howe 1969-6-10 4640 San Mateo 18.5 miles north of San Mateo Santa Cruz County line. Comment
  JROH1413  Plagiobothrys chorisianus var. hickmanii John H. Thomas 1971-4-25 15781 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC25045  Plagiobothrys nothofulvus Alice Eastwood April 1896 San Mateo Crystal Springs Comment
  POM287296  Plagiobothrys nothofulvus Lyman Benson 1930-5-1 2055 San Mateo Stanford University. Mt. Range: San Lorenzo. 122 Comment
  UC24581  Plagiobothrys undulatus J. Burtt Davy Jun 21-23 1893 1136 San Mateo Pilarcitos Lake; Pilarcitos Canyon Comment
  JROH3123  Plantago erecta John Hunter Thomas 1986-5-1 23994 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD124478  Plantago erecta Lewis S. Rose 1965-5-3 65056 San Mateo San Bruno Mountain, north end. 182 Comment
  UC1125643  Plantago lanceolata N. K. Carlson 1935-6-29 100 San Mateo 1.5 mi se Pescadero Pt.; Santa Cruz Quad. 91 Comment
  JROH3130  Plantago lanceolata John H. Thomas 1971-4-3 15743 San Mateo Jasper Ridge Biological Preserve, Stanford University; near dam Comment
  UCD164599  Plantago major Peter Rubtzoff; Roman Gankin 1975-9-11 8371 San Mateo San Bruno Mountains. Pond NW of and across old Guadalupe Road from 'Saddle' area (which is located on N side of Guadalupe Canyon Parkway, W of Radio Road junction). Comment
  RSA176766  Plantago maritima John H. Thomas 1963-5-20 10139 San Mateo Ano Nuevo Island, 1/2 mile off shore and about 20 miles NW of Santa Cruz. Comment
  RSA18371  Plantago maritima Carl B. Wolf 1927-6-29 537 San Mateo Along coast south of Pebble Beach near Pescadero. Comment
  POM283861  Plantago maritima Lyman Benson 1930-6-14 2153 San Mateo San Gregorio. 30 Comment
  SEINET12284426  Plantago maritima Unknown 1933-1 10441 San Mateo near Pigeon Point Comment
  JEPS7154  Plantago maritima var. californica James G. Daly 1934-1 478 San Mateo mouth of San Gregorio Creek San Gregorio Creek Comment
  SEINET8389512  Plantago subnuda J. H. Thomas 1964-6-19 10433 San Mateo near Pigeon Pt. Lighthouse. Comment
  CAS-BOT-BC92018  Platystemon californicus A. A. Heller 1907-4-20 8445 San Mateo Near Lake Merced. Comment
  CAS-BOT-BC92022  Platystemon californicus David D. Keck 1932-5-6 1473 San Mateo Burlingame. North city limits. Comment
  CAS-BOT-BC92024  Platystemon californicus Phillip Wheeler 1965-3-30 s.n. San Mateo San Bruno Mountain. Wheeler's Canyon. Comment
  POM149344  Platystemon californicus var. californicus C. F. Baker 1902-3-30 433 San Mateo Crystal Springs Lake. Comment
  POM204134  Platystemon californicus var. californicus L. S. Rose 1933-5-17 33170 San Mateo Redwood City. Comment
  RSA6413  Platystemon californicus var. californicus D. D. Keck 1932-5-6 1473 San Mateo Burlingame. 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
  JROH4252  Plectritis macrocera John H. Thomas 1977-4-29 18572 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5684  Plectritis macrocera John Rawlings 2015-4-7 1462 San Mateo Jasper Ridge Biological Preserve, Stanford University; rocky ridge crest of Jasper Ridge 175 Comment
  SEINET10611508  Pleuropogon californicus var. californicus Adolph D. E. Elmer Elmer 4848 San Mateo San Bruno Hills. Comment
  CAS-BOT-BC255563  Poa annua W. R. Dudley 1894-3-26 s.n. San Mateo Santa Cruz Mountain Peninsula. By road from Pescadero to San Gregorio Comment
  CAS-BOT-BC255565  Poa annua Ira L. Wiggins 1928-4-22 2944 San Mateo Moss Beach Comment
  CAS-BOT-BC257691  Poa annua Peter Rubtzoff 1988-5-3 9915 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
  JROH5404  Poa annua John Hunter Thomas 1982-4-28 20869 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC254546  Poa douglasii W. R. Dudley 1900-3-18 s.n. San Mateo Santa Cruz Mountain Peninsula. San Pedro Beach Comment
  RSA176552  Poa douglasii John H. Thomas 1963-5-20 10155 San Mateo at Ano Nuevo Point Comment
  RSA785876  Poa pratensis Peter Rubtzoff 1976-5-22 8544 San Mateo 'Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction. Comment
  SEINET10855247  Poa scabrella LeRoy R. Abrams Abrams 1162 San Mateo Menlo Park-reservoir. Comment
  RSA120384  Poa secunda Roxana S. Ferris 1921-5-20 2174 San Mateo Santa Cruz Mountain Peninsula; road over divide from Alpine Creek and Pescadero Creek 305 Comment
  SEINET3130238  Poa secunda L. R. Abrams 1902-5-4 2408 San Mateo Woodside Comment
  CAS-BOT-BC243111  Poa secunda subsp. secunda Holm 1903-4-20 1920 San Mateo San Andreas Lake, about hill tops Comment
  CAS-BOT-BC243114  Poa secunda subsp. secunda Ned Cahill 1974-5-30 308 San Mateo Near the intersection of Canada and Edgewood roads, about 3 miles W from Redwood City Comment
  JROH5426  Poa secunda subsp. secunda W. Lennihan 1989-4-6 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Across Lake from lab. Comment
  CAS-BOT-BC244255  Poa unilateralis Javier Penalosa 1963-3-30 2755 San Mateo San Bruno Mountain. Crest of ridge SW of Brisbane, NW of power lines 304 Comment
  SJSU15966  Poa unilateralis subsp. unilateralis Toni Corelli, John Rawlings 2016-5-27 1844 San Mateo Bean Hollow bluff trail, west of Hwy 1 south of Pescadero 8 Comment
  RSA0022156  Pogogyne serpylloides John H. Thomas 1966-4-29 11588 San Mateo Jasper Ridge Biological experimental area, 5 miles SW of Palo Alto. Comment
  JROH2853  Pogogyne serpylloides H. J. Dengler 1961-4-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; by trail, above old trough Comment
  SD73212  Pogogyne serpylloides Darley F. Howe 1969-6-10 4642 San Mateo 18.5 miles north of San Mateo-Santa Cruz county line on Highway 1. Comment
  CAS-BOT-BC232897  Polemonium carneum A. D. E. Elmer 1903-7-1 4771 San Mateo Pilarcitos Stone Dam Comment
  UC882706  Polemonium carneum L. R. Abrams 1916-4-22 5576 San Mateo Pilarcito Canyon Santa Cruz Mountain Peninsula, Pilarcito Canyon Comment
  JROH5958  Polycarpon tetraphyllum var. tetraphyllum John Rawlings 2017-6-5 2098 San Mateo Jasper Ridge Biological Preserve, Stanford University. Road D, ~20 yards west of its intersection with Road E 157 Comment
  CAS-BOT-BC413944  Polygonum aviculare subsp. aviculare Thomas R. Mertens 1963-9-28 6 San Mateo 1-2 miles north of Santa Cruz County line on State Highway 1 Comment
  JEPS81637  Polygonum aviculare subsp. depressum J. C. Hickman 1981-7-21 1003 San Mateo Ano Nuevo Reserve; near center Comment
  POM280424  Polygonum coccineum Lyman Benson 1932-7-11 3930 San Mateo Stanford University, Lake border, Santa Cruz Creek, San Francisquito. 152 Comment
  UC1101152  Polygonum lapathifolium Malcolm A. Nobs and S. Galen Smith 1949-8-26 1577 San Mateo pond in sand dunes about 1 mi s Half Moon Bay Comment
  CAS-BOT-BC109239  Polygonum paronychia V. F. Hesse 1954-7-30 1343 San Mateo Near Pebble Beach. 15 Comment
  CAS-BOT-BC109243  Polygonum paronychia Robert Robertson 1954-5-1 120 San Mateo Pebble Beach. 4 Comment
  SEINET3086523 Image available Polygonum paronychia C. W. Sharsmith 1950-4-16 6627 San Mateo Vicinity of Pescadero Point, near Pescadero. Comment
  UCR240610  Polygonum paronychia T. B. Salvato, Lia V. D. Mansfield, Joel-Henry J. Mansfield 2008-6-14 3526 San Mateo Central Coast, Pebble Beach State Beach, 12.5 mi north of Santa Cruz Co. line, along Hwy 1, Pacific Coast Hwy, 1.65 mi south of road to Pesacadero and 16 mi south of Half Moon Bay 11 Comment
  RSA88326  Polygonum patulum J. T. Howell 1953-6-3 29057 San Mateo Bayshore Hwy, Redwood City. Comment
  UCD100554  Polygonum patulum John Thomas Howell 1953-6-3 29057 San Mateo Bayshore Highway, Redwood City. Comment
  JROH76  Polypodium californicum John H. Thomas 1964-11-29 10541 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH79  Polypodium californicum John H. Thomas 1972-4-1 16045 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  UC474210  Polypodium californicum H. F. Copeland 1928-2-26 985 San Mateo on cliffs above ocean Montara Comment
  UCSC007770  Polypodium californicum Becky Hendricks, Shayne Coppedge 2012-6-22 s.n. San Mateo Ano Nuevo State Park Comment
  UC42914  Polypodium scouleri J. Burtt Davy 1893-6-22 San Mateo top of Pilarcitos Canyon Comment
  CAS-BOT-BC167228  Polypodium scouleri Peter Rubtzoff 1977-11-24 9143 San Mateo Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC72108  Polypodium scouleri Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo Wax Myrtle Ravine Comment
  CAS-BOT-BC72110  Polypodium scouleri George Oberlander 1949-7-24 305 San Mateo Cypress Cayhill Range Comment
  CAS-BOT-BC233153  Polypogon interruptus H. A. Borthwick 1920-6-1 203 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City Comment
  JROH5435  Polypogon interruptus John Hunter Thomas 1983-5-23 22247 San Mateo Jasper Ridge Biological Preserve, Stanford University. Roadside drainage near shack side & low-flow crossing. Comment
  CAS-BOT-BC237346  Polypogon monspeliensis George Oberlander 1949-7-24 312 San Mateo San Francisco Watershed Reserve. Pilarcitos Canyon Comment
  JROH5438  Polypogon monspeliensis L. R. Abrams 1901-5-14 1639 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH5446  Polypogon monspeliensis John H. Thomas 1976-10-16 18410 San Mateo Jasper Ridge Biological Preserve, Stanford University. Dry delta in Searsville Lake at the mouth of Corte de Madera Creek. Comment
  JROH5608  Polypogon monspeliensis John Rawlings 2013-5-28 1210 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small drainage west of Goya Gate. 177 Comment
  UC1100375  Polypogon monspeliensis Malcolm A. Nobs and S. Galen Smith 1949-8-26 1609 San Mateo about 1 mi s Pigeon Point; s of Pigeon Point Comment
  UCD91350  Polypogon monspeliensis Herbert L. Mason; Verne Grant 1946-8-28 13094 San Mateo On Highway 5, about 3 miles south of Daly City Road. Comment
  CAS-BOT-BC237586  Polypogon viridis J. H. Thomas 1958-8-1 7369 San Mateo About 0.25 mile W of center of Pescadero Comment
  CAS-BOT-BC72113  Polystichum Peter Rubtzoff; Patricia Fallon 1987-8-26 9844 San Mateo San Bruno Mountains, East Fork Colma Creek Canyon Comment
  JROH46  Polystichum dudleyi Lawrence J. Winship 1974-11-2 2 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH49  Polystichum dudleyi Carol Zabel 2001-10-5 45 San Mateo Jasper Ridge Biological Preserve, Stanford University. Off Trail 1 on south side San Francisquito Creek bank, just below redwood grove. From "redwood circle", go down incline to bank. Comment
  JROH54  Polystichum munitum Lawrence J. Winship 1974-11-2 8 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  JROH55  Polystichum munitum Lawrence J. Winship 1974-11-16 19 San Mateo Jasper Ridge Biological Preserve, Stanford University. Comment
  CAS-BOT-BC166964  Polystichum munitum Peter Rubtzoff 1976-10-5 8905 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  CAS-BOT-BC76606  Polystichum munitum George Oberlander 1949-5-21 211 San Mateo San Francisco Watershed Reserve - Cahill Ridge Comment
  CAS-BOT-BC76646  Polystichum munitum Elizabeth McClintock 1965-3-28 s.n. San Mateo San Bruno Mountain - North Power Line Ridge area. Comment
  RSA11001  Polystichum munitum C. B. Wolf 1928-3-14 1538 San Mateo La Honda Grade, Santa Cruz Mountains. Comment
  UC1174501  Populus trichocarpa W. R. Dudley 1902-9-21 San Mateo on Whipple Road s Crystal Springs Lake (and w of Serpentine); Santa Cruz Peninsula, s of Crystal Springs Lake Comment
  CAS-BOT-BC445246  Portulaca oleracea Fay Gilbert 1920-6-1 s.n. San Mateo Santa Cruz Mountain Peninsula. Redwood City Comment
  CAS-BOT-BC453678  Potamogeton gramineus W. R. Dudley 1910-5-26 s.n. San Mateo Santa Cruz Mountain Peninsula. Coal Mine Ridge near Black Mountain Comment
  CAS-BOT-BC453736  Potamogeton illinoensis Charles W. O'Brien 1964-8-31 s.n. San Mateo Lake Pilarcitos Comment
  POM193749  Potamogeton nodosus H. L. Mason 1921-5-28 s.n. San Mateo Unspecified. Comment
  SEINET10946049  Potamogeton nodosus Herbert L. Mason 1921-5-28 Mason s.n. San Mateo Lagoon back of New Years Pt. Comment
  UCR141402  Potamogeton pectinatus June Latting 1975-6-8 s.n. San Mateo Central Coast, slough across from Pescadero dump (on Bean Hollow Rd.), west of Pescadero 9 Comment
  CAS-BOT-BC454005  Potamogeton pectinatus W. R. Dudley 1909-10-10 s.n. San Mateo Santa Cruz Mountain Peninsula. Crystal Springs Reservoir near Club House. Comment
  JROH5517  Potamogeton pusillus John Hunter Thomas 1981-7-12 20710 San Mateo Jasper Ridge Biological Preserve, Stanford University. In lake along the shore Comment
  CAS-BOT-BC454050  Potamogeton pusillus subsp. pusillus W. R. Dudley 1909-10-10 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Club House, Crystal Springs Reservoir Comment
  CAS-BOT-BC141926  Potentilla anserina subsp. pacifica Anne Constant 1955-5-28 196 San Mateo Top of bluff at Pescadero Beach 7 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
  SJSU2276  Potentilla anserina subsp. pacifica C. W. Sharsmith 1947-4-13 6757 San Mateo Pescadero Beach Comment
  POM203299  Potentilla hickmanii E. C. Satlife 1933-11-10 s.n. San Mateo Moss Beach Comment
  JROH3388  Primula hendersonii John Hunter Thomas 1982-3-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rattlesnale Rocks Comment
  JROH4672  Prosartes hookeri John H. Thomas 1973-5-5 16761 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4673  Prosartes hookeri John H. Thomas 1973-5-5 16761 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCD139791  Prosartes hookeri Janet Jacob 1951-4-1 53 San Mateo 7 miles east of Pescadero. Comment
  CAS-BOT-BC516359  Prosartes hookeri E. A. McGregor 1908-3-28 s.n. San Mateo Kings Mountain Comment
  CAS-BOT-BC517386  Prosartes smithii Mrs. Boot 1940-4-7 1731 San Mateo Canyon near Half Moon Bay and Skyline Highway junction Comment
  CAS-BOT-BC517399  Prosartes smithii A. D. E. Elmer 1903-5-1 4697 San Mateo Butano Creek Comment
  SEINET12044821  Prosartes smithii J. D. Randall 1908-1 s.n. San Mateo King's Mt, Santa Cruz Peninsula Comment
  CAS-BOT-BC154502  Prunus ilicifolia Fred Hemphill 1973-4-22 838 San Mateo San Carlos. North of Malabar Rd. and Melendy Dr. 207 Comment
  CAS-BOT-BC156361  Prunus virginiana var. demissa George Oberlander 1949-6-25 245 San Mateo Pilarcitos Canyon Comment
  OBI16449  Pseudognaphalium beneolens Lewis S. Rose 1966-8-15 66082 San Mateo Emerald lake, W of Redwood City 91 Comment
  CAS-BOT-BC356868  Pseudognaphalium californicum Ned Cahill 1974-6-21 340 San Mateo Near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  JROH767  Pseudognaphalium californicum John Hunter Thomas 1983-4-28 21783 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC356855  Pseudognaphalium californicum George Oberlander 1949-8-20 361 San Mateo San Francisco Watershed Reserve. Sweeney Ridge Comment
  HSC23984  Pseudognaphalium californicum Mary Katherine Wicksten 1971-6-17 54 San Mateo Huddart Park on Chickadee Trail Comment
  RSA191946  Pseudognaphalium californicum R. F. Thorne, Percy C. Everett 1963-6-9 32231 San Mateo On top of San Bruno Mountain. 335 Comment
  JROH775  Pseudognaphalium luteoalbum John H. Thomas 1970-7-5 15657 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH780  Pseudognaphalium luteoalbum John H. Thomas 1978-5-23 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC413801  Pseudognaphalium luteoalbum Robert I. Gilbreath 1977-8-16 105 San Mateo Hillsborough. Cultivated garden area at 366 Alberta Way 160 Comment
  CAS-BOT-BC357509  Pseudognaphalium ramosissimum John H. Thomas 1976-10-7 18391 San Mateo Along coast highway #1, 0.6 miles north of northern most road to Pigeon Pt. Lighthouse. About 4.2 miles almost due south of Pescadero 30 Comment
  UC575670  Pseudognaphalium ramosissimum Lewis S. Rose 1935-8-13 35568 San Mateo Salada 30 Comment
  CAS-BOT-BC361570  Pseudognaphalium stramineum L. R. Abrams; I. L. Wiggins 1939-6-3 428 San Mateo Ano Nuevo Point Comment
  JEPS49081  Pseudognaphalium stramineum Lewis S. Rose 1966-8-6 66079 San Mateo Colma Canyon San Bruno Mountain, Colma Canyon 121 Comment
  CAS-BOT-BC85905  Pseudotsuga menziesii Josephine D. Randall 1906-3-9 275 San Mateo Santa Cruz Peninsula, King's Mt. Comment
  UCSB11506  Pseudotsuga menziesii Olson, Jim 1962-4-15 San Mateo 2 miles east of Portola State Park of Portola State Park Road; 20 miles south of La Honda Comment
  CAS-BOT-BC85909  Pseudotsuga menziesii W. R. Dudley 1899-8-27 s.n. San Mateo Near Sisson Tavern Comment
  SBBG28043  Psilocarphus tenellus L. S. Rose 1933-5-3 33140 San Mateo Montara Comment
  CAS-BOT-BC362016  Psilocarphus tenellus W. R. Dudley 1899-4-13 s.n. San Mateo Santa Cruz Mountain Peninsula. Field near San Francisquito Creek, Stanford University Comment
  CAS-BOT-BC362021  Psilocarphus tenellus Elizabeth McClintock 1965-4-11 s.n. San Mateo San Bruno Mountain. Crocker Hills. Near Guadalupe Road Comment
  CAS-BOT-BC362030  Psilocarphus tenellus Walter Knight; Irja Knight 1965-3-21 960 San Mateo San Bruno Mountain. North Power Line Ridge Comment
  SEINET3086525 Image available Pterostegia drymarioides C. W. Sharsmith 1947-4-13 6756 San Mateo Pescadero Beach near Pescadero Point. 50 Comment
  CAS-BOT-BC421313  Pterostegia drymarioides Elizabeth McClintock; Paul Reeberg 1988-3-29 s.n. San Mateo San Bruno Mountains. Colma Canyon. 121 Comment
  JROH3754  Pyracantha fortuneana J. H. Thomas 1960-6-8 8773 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near entrance to Searsville Lake Comment
  CAS-BOT-BC460838  Pyrola aphylla W. R. Dudley 1895-6-7 s.n. San Mateo Santa Cruz Peninsula: 4000 feet above Iverson's; Butano Ridge Comment
  CAS-BOT-BC362361  Pyrrocoma racemosa var. racemosa L. R. Abrams 1906-9-29 s.n. San Mateo Cooley's [Cooley] Landing Comment
  CAS-BOT-BC104277  Quercus X morehus W. R. Dudley 1904-4-10 s.n. San Mateo Santa Cruz Mountain Peninsula, Goat Ranch Road near Alpine Road - Black Mt. Comment
  JROH2534  Quercus X morehus W. K. Fisher 1898-3-19 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
Read comments
Oct 31 2016
  CAS-BOT-BC61708  Quercus agrifolia Walter Knight; Irja Knight 1964-9-2 722 San Mateo About 1/3 way up Buckeye Canyon - west facing slope, San Bruno Mountain Comment
  SEINET9326838  Quercus agrifolia Unknown 1938-11-6 San Mateo Woodside, hill slopes. Comment
  JROH2458  Quercus agrifolia var. agrifolia John H. Thomas 1971-4-21 15769 San Mateo Jasper Ridge Biological Preserve, Stanford University; at bridge 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
  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
  CAS-BOT-BC85952  Quercus douglasii Ned Cahill 1974-5-30 327 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwwod City. Comment
  CAS-BOT-BC94271  Quercus durata Ned Cahill 1974-4-19 143 San Mateo near the intersection of Canada and Edgewood roads, about 3 mi westward from Redwood City Comment
  SEINET12034352  Quercus durata Unknown 1930-1 7294 San Mateo ridges near Searsville Lake Common Chaparral Comment
  SEINET13953265 Image available Quercus durata Lewis S. Rose 1950-1 50136 San Mateo Emerald Lake region; hills w. of Redwood City; alt. ca. 800 ft. 244 Comment
  JROH2484  Quercus durata var. durata John H. Thomas 1972-8-18 16149 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC105392  Quercus kelloggii W. R. Dudley 1901-5-4 s.n. San Mateo Santa Cruz Mountain Peninsula, Coal Mine Canon [canyon] Comment
  RSA15312  Quercus kelloggii Carl B. Wolf 1927-4-3 282 San Mateo 1 1/2 miles above east base of La Honda grade, Santa Cruz Mountains. Comment
  RSA477344  Quercus kelloggii L. H. Jones 1909-3-5 s.n. San Mateo On the west side of Jasper Ridge, Stanford University. 137 Comment
Read comments
Sep 19 2011
  UCD46676  Quercus kelloggii Ira L. Wiggins 1946-5-2 s.n. San Mateo La Honda road, above Searsville Reservoir, San Mateo County, California. 457 Comment
  UCD46744  Quercus kelloggii Edmond Holm 1993-10-20 s.n. San Mateo (Q. parvula Greene var. shrevei (Muller) Nixon. California, San Mateo Co.; Huddart Park, near Miwok Picnic Area. Comment
  CAS-BOT-BC62897  Quercus lobata John H. Thomas 1974-4-11 17136 San Mateo SE of Canada Road and Edgewood Road. NW of Woodside 152 Comment
  RSA623993  Quercus lobata R. Hoffough 1929-4-24 278 San Mateo Jasper Ridge- Stanford Campus. Comment
  CAS-BOT-BC62896  Quercus lobata George Oberlander 1949-7-30 346 San Mateo Southern boundary Comment
  UCD14074  Quercus parvula var. shrevei Stephen K. Langer 1988-11-5 s.n. San Mateo California, San Mateo Co.; Jones Gulch Y.M.C.A. Camp. Comment
  CAS-BOT-BC134787  Quercus wislizeni James McMurphy 1909-5-26 s.n. San Mateo San Bruno Mountainin northern part of county. 396 Comment
  CAS-BOT-BC134791  Quercus wislizeni Le Roy Abrams 1902-5-20 2439 San Mateo Kings Mountain Comment
  HSC23883  Quercus wislizeni Mary Katherine Wicksten 1971-6-16 16 San Mateo Huddart Park, dry gully by horse ring 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
  CAS-BOT-BC362543  Rafinesquia californica Fred Hemphill 1973-5-6 782 San Mateo San Carlos. Chaparral area north of Malabar Rd. and Melendy Dr. 207 Comment
  JEPS54964  Ranunculus californicus W. L. Jepson 1914-3-22 5730 San Mateo Redwood City Comment
  JROH3475  Ranunculus californicus Toni Corelli 2005-4-13 284 San Mateo Jasper Ridge Biological Preserve, Stanford University; east of Trail 10 178 Comment
  JROH5899  Ranunculus californicus L. Nordby 1982-4-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville Lab. 178 Comment
  UC277217  Ranunculus californicus H. M. Hall 1923-2-20 11844 a San Mateo Pigeon Point; 3.4 mi s of L.H., near the sea Comment
  POM268423  Ranunculus californicus Arthur L. Cohen 1935-4-21 618 San Mateo Jasper Ridge, San Francisquito Creek. 122 Comment
  RSA100978  Ranunculus californicus G. Oberlander 1949-4-2 20 San Mateo Top of Sweeney ridge, San Francisco Watershed Reserve Comment
  CAS-BOT-BC378538  Ranunculus californicus var. californicus M. P. Johnson 1967-2-18 10013 San Mateo open north facing slope off Crocker Avenue just south of San Francisco boundary 183 Comment
  RSA120769  Ranunculus californicus var. cuneatus S. S. Tillett, I. Sternback 1956-6-24 537 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  RSA15339  Ranunculus californicus var. cuneatus Carl B. Wolf 1927-1-29 s.n. San Mateo Pebble Beach, along bluffs near Beach Comment
  JROH3478  Ranunculus hebecarpus John H. Thomas 1971-4-25 15788 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH3483  Ranunculus hebecarpus John Hunter Thomas 1981-4-5 20264 San Mateo Jasper Ridge Biological Preserve, Stanford University. Below dam Comment
  CAS-BOT-BC83417  Ranunculus lobbii J. I. McMurphy 1906-5-8 s.n. San Mateo Santa Cruz Mountain Peninsula. Pond near Head of Crystal Springs Lakes. Comment
  CAS-BOT-BC83425  Ranunculus lobbii George Oberlander 1950-3-18 518 San Mateo San Francisco Watershed Reserve. About Upper Crystal Spring Lake. Comment
  CAS-BOT-BC83429  Ranunculus lobbii A. D. E. Elmer 1903-4-1 4734 San Mateo Alpine School House. Comment
  UC202813  Ranunculus lobbii A. D. E. Elmer April, 1903 4734 San Mateo Alpine School House Comment
  UC162558  Ranunculus muricatus Harley P. Chandler 1901-3-15 798 San Mateo marshes w Colma; Region of San Francisco Bay Comment
  JROH3499  Ranunculus muricatus John Hunter Thomas 1985-4-10 23513 San Mateo Jasper Ridge Biological Preserve, Stanford University. Grassy areas, east of low flow crossing. Comment
  JROH3501  Ranunculus uncinatus John Rawlings 2013-4-16 1144 A San Mateo Jasper Ridge Biological Preserve, Stanford University. Trail 1. 79 Comment
  RSA210922  Raphanus sativus John H. Thomas 1969-6-4 15106 San Mateo Jasper Ridge Biological Experimental Area, about 5 miles SW of Palo Alto. Comment
  OBI48701  Raphanus sativus S. Bagley 1969-3-28 s.n. San Mateo Overlooking the San Francisco Game Refuge 145 Comment
  UC592790  Rhamnus californica unknown 1927-12-31 1473 San Mateo 0.5 way up Kings Mt. Comment
  JROH3560  Rhamnus crocea John H. Thomas 1963-3-20 10029 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Westridge end of ridge Comment
  CAS-BOT-BC56671  Rhododendron occidentale W. R. Dudley 1895-6-6 s.n. San Mateo Near Iverson's on Upper Pescadero Creek Comment
  CAS-BOT-BC437974  Ribes Elizabeth McClintock 1965-3-28 s.n. San Mateo Devil's Arroyo; San Bruno Mountains Comment
  RSA3921  Ribes californicum James I. McMurphy 1906-5-11 57 San Mateo San Francisquito Cr. Stanford University. Comment
  UC11498  Ribes californicum J. Burtt Davy 1895-4-21 1058 San Mateo Pilarcitos Creek Comment
  UC974953  Ribes californicum Lewis S. Rose 1937-3-14 37003 San Mateo Belmont 152 Comment
  CAS-BOT-BC93012  Ribes californicum var. californicum Margaret A. Barry 1938-4-21 224 San Mateo Coal Mine Ridge. Comment
  CAS-BOT-BC93014  Ribes californicum var. californicum K. Haj Jaryh 1929-5-6 533 San Mateo La Honda Grade. Comment
  JROH2635  Ribes californicum var. californicum John H. Thomas 1958-2-15 6989 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2638  Ribes californicum var. californicum Duncan M. Porter 1961-2-8 742 San Mateo Jasper Ridge Biological Preserve, Stanford University. N face of sandstone cliff at N end of ridge above San Francisquito Creek. Comment
  JROH2646  Ribes californicum var. californicum John Hunter Thomas 1982-2-19 20802 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Goya Gate Comment
  CAS-BOT-BC173081  Ribes divaricatum var. pubiflorum A. D. E. Elmer 1903-5-1 4511 San Mateo Searsville Lake Comment
  CAS-BOT-BC173084  Ribes divaricatum var. pubiflorum F. J. Jack 1894-3-24 s.n. San Mateo La Honda Road Comment
  UC311181  Ribes divaricatum var. pubiflorum A. D. E. Elmer May, 1903 4511 San Mateo Searsville Lake Comment
  CAS-BOT-BC173465  Ribes malvaceum Marian L. Campbell 1920-5-2 s.n. San Mateo Los Altos Comment
  CAS-BOT-BC173473  Ribes malvaceum A. D. E. Elmer 1903-3-1 4535 San Mateo Portola Comment
  CAS-BOT-BC173475  Ribes malvaceum W. R. Dudley 1893-1-1 s.n. San Mateo Near Belmont Comment
  UC202789  Ribes menziesii A. D. E. Elmer April, 1903 4496 San Mateo Portola Comment
  JROH2666  Ribes menziesii var. menziesii John H. Thomas 1960-3-1 8538 San Mateo Jasper Ridge Biological Preserve, Stanford University. In shaded areas near San Francisquito Creek. Comment
  JROH2672  Ribes menziesii var. menziesii Toni Corelli 2002-8-19 248 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Trail 1. 82 Comment
  JROH5605  Ribes menziesii var. menziesii John Rawlings 2014-3-25 1211 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along Trail 2 -- one plant upslope and one downslope -- about 400 yards west of Zoology Cabin site. 80 Comment
  JEPS48600  Ribes sanguineum Elsa Kraeger 1926-2-21 San Mateo La Honda Comment
  RSA0019107  Ribes sanguineum A. C. Life 1929-2-22 s.n. San Mateo Kings Mountain. Redwood Park. Comment
  CAS-BOT-BC144603  Ribes sanguineum var. glutinosum J. H. Thomas 1955-3-18 4693 San Mateo About 6 milesup Tunitas Road from Ocean 335 Comment
  CAS-BOT-BC144605  Ribes sanguineum var. glutinosum Lewis S. Rose 1955-4-1 55041 San Mateo Kings Mountain 609 Comment
  CAS-BOT-BC144633  Ribes sanguineum var. glutinosum C. F. Baker 1902-1-15 241 San Mateo West side of King's Mt. Comment
  CAS-BOT-BC144635  Ribes sanguineum var. glutinosum W. R. Dudley 1900-3-18 s.n. San Mateo Below San Andreas Lake and above head of Crystal Springs Lake Comment
  CAS-BOT-BC144649  Ribes sanguineum var. glutinosum W. R. Dudley 1904-3-1 62 San Mateo Corte de Madera Creek, Santa Cruz Mts Comment
  RSA0019092  Ribes sanguineum var. glutinosum Ray Langham 1966-4-3 133 San Mateo King s Grove. 10 miles SE of La Honda. Santa Cruz Mountains. Pacific drainage area. 229 Comment
  RSA0019108  Ribes sanguineum var. glutinosum Paul C. Silva 1948-1-31 2620 San Mateo Skyline Blvd. just north of junction of Alpine Creek Road. 701 Comment
  CAS-BOT-BC168727  Ribes victoris Eric Walther 1919-6-9 s.n. San Mateo Woodside Comment
  CAS-BOT-BC363086  Rigiopappus leptocladus Ira L. Wiggins 1949-4-23 12050 San Mateo Hillsides above Emerald Lake, back of Redwood City Comment
  UC75101  Romanzoffia californica C. F. Baker 1902-4-6 463 San Mateo Crystal Springs Lake Comment
  POM65642  Romanzoffia californica L. R. Abrams 1916-4-22 5582 San Mateo Pilarcitos Canyon at the little upper lake; Santa Cruz Mountain Peninsula. Comment
  SJSU6410  Romanzoffia californica C. W. Sharsmith 1973-3-24 7935 San Mateo Pillarcitos Canyon, Crystal Springs area San Francisco Watershed Lands Comment
  UC1736041  Romulea rosea var. australis Dean W. Taylor 1995-3-14 14751 San Mateo Buri Buri Ridge; west of Hillsborough; west of Skyline Blvd.; San Francisco Fish & Game Refuge, San Francisco Water Department lands 152 Comment
  JROH1577  Rorippa curvisiliqua Ann Lambrecht, Toni Corelli 2004-9-15 14 San Mateo Jasper Ridge Biological Preserve, Stanford University. About 10 m E of Sand Hill Rd culvert 104 Comment
  CAS-BOT-BC146355  Rosa J. Ed. McClellan; Bonnie McClellan 1968-6-1 s.n. San Mateo Butano Fire Trail between Cloverdale Rd. & west boundary of Butano State Park Comment
  CHSC56587  Rosa californica Steven Triano 1988-5-24 173 San Mateo Along w side of Old La Honda Road ca 0.6 mi s of Portola Road and 3.8 mi s of Woodside. 201 Comment
  CAS-BOT-BC146698  Rosa gymnocarpa W. R. Dudley 1906-5-8 65 San Mateo Near Crystal Springs Lake, Santa Cruz Mts. 91 Comment
  CAS-BOT-BC146700  Rosa gymnocarpa John H. Thomas 1961-5-14 9367 San Mateo Vicinity of Pilarcitos Stone Dam on Pilarcitos Creek, San Francisco Watershed Reserve 152 Comment
  RSA195394  Rosa gymnocarpa W. R. Dudley 1906-5-8 65 San Mateo Near Crystal Springs Lake. Santa Cruz Mtns. Santa Cruz peninsula. 91 Comment
  POM275418  Rosa gymnocarpa Lyman D. Benson 1931-5-10 2796 San Mateo Woodside. Santa Cruz Mtn Range. 427 Comment
  JROH2869  Rosmarinus officinalis Diane Renshaw, Ann Lambrecht 2011-6-21 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; N of Westridge fence near Escobar Rd. turnaround Comment
  CAS-BOT-BC156594  Rubus bifrons J. H. Thomas 1963-9-11 10263 A San Mateo San Bruno Mountain. Near intersection of Guadalupe Rd. and South Hill Blvd. Comment
  CAS-BOT-BC156645  Rubus bifrons Phillip C. Wheeler 1965-7-7 s.n. San Mateo Crocker Avenue Comment
  CAS-BOT-BC152837  Rubus parviflorus Margaret A. Barry 1938-5-1 251 San Mateo Coal Mine Ridge Comment
  CAS-BOT-BC152870  Rubus parviflorus Walter Knight; Irja Knight 1963-6-24 s.n. San Mateo Quarry 4 - San Bruno Mountain Comment
  JROH3773  Rubus parviflorus John H. Thomas 1974-5-3 17247 San Mateo Jasper Ridge Biological Preserve, Stanford University. Redwood area below dam Comment
  POM222901  Rubus parviflorus var. velutinus S. S. Berry 1909-4-2 s.n. San Mateo Bear Creek Canyon Grade 244 Comment
  RSA128601  Rubus parviflorus var. velutinus Peter H. Raven 1950-4-30 1982 San Mateo Montara Mtns. Ca 1/2 mile N of Montara. 91 Comment
  CAS-BOT-BC156662  Rubus spectabilis V. F. Hesse 1959-4-16 2587 San Mateo Gazos Creek near coast 45 Comment
  CAS-BOT-BC157067  Rubus ursinus R. Hoffough 1929-5-6 s.n. San Mateo La Honda Grade Comment
  CAS-BOT-BC157078  Rubus ursinus L. R. Abrams 1914-10-14 5132 San Mateo Tunitas [Canon] Canyon Comment
  CAS-BOT-BC157082  Rubus ursinus L. R. Abrams 1914-10-14 5136 San Mateo Tunitas [Canon] Canyon Comment
  CAS-BOT-BC157093  Rubus ursinus W. B. Duncan 1924-5-25 s.n. San Mateo Moss Beach Comment
  CAS-BOT-BC157102  Rubus ursinus Alice Eastwood; John Thomas Howell 1938-6-26 6050 San Mateo Montara Mt. above Pt. San Pedro Comment
  CAS-BOT-BC157111  Rubus ursinus John Thomas Howell 1938-6-4 13890 San Mateo Burlingame Comment
  UC204056  Rubus ursinus A. D. E. Elmer June, 1903 4664 San Mateo Crystal Springs Lake southern end Comment
  CAS-BOT-BC422081  Rumex acetosella John H. Thomas 1964-4-30 10362 San Mateo San Bruno Mountain in northern part of county. 396 Comment
  CAS-BOT-BC422084  Rumex acetosella Ira L. Wiggins 1928-3-25 2945 San Mateo Moss Beach Comment
  UCD101038  Rumex acetosella E. M. Johnston Jun and Jul 191 11 San Mateo Bay Region, Millbrae. Comment
  JROH3304  Rumex conglomeratus John Hunter Thomas 1989-6-13 24768 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC421820  Rumex conglomeratus Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Colma Canyon Comment
  UC1101213  Rumex maritimus Malcolm A. Nobs and S. Galen Smith 1949-8-26 1590 San Mateo mouth of Pescadero Creek Pescadero Creek Comment
  UC1215067  Rumex occidentalis V. F. Hesse 1962-7-19 3164 San Mateo between ocean and Pescadero 9 Comment
  CAS-BOT-BC433820  Rumex pulcher A. D. E. Elmer 1903-7-1 4778 San Mateo Pilarcitos Stone Dam Comment
  SD88535  Rumex salicifolius Darley F. Howe 1972-6-25 San Mateo 7.5 miles north of Half Moon Bay Comment
  UC1191281  Rumex salicifolius var. transitorius Herbert L. Mason and Verne Grant 1946-8-28 13080 San Mateo n of San Francisco county prison Comment
  CAS-BOT-BC434132  Rumex transitorius Alice Eastwood; John Thomas Howell 1938-6-26 6061 San Mateo Near Pescadero Comment
  JROH2210  Rupertia physodes John H. Thomas 1961-5-5 9218 San Mateo Jasper Ridge Biological Preserve, Stanford University; at NW end of ridge 152 Comment
  POM348838  Rupertia physodes E. S. Spalding 1928-8-3 s.n. San Mateo Pulgas Tunnel east side. Comment
  UC1109006  Ruppia cirrhosa H. E. Parks Oct 1928 San Mateo Laguna Salada Comment
  UC279587  Ruppia cirrhosa W. A. Setchell 1925-8-29 San Mateo Laguna de Salada Comment
  UC279598  Ruppia maritima W. A. Setchell San Mateo Laguna de Salada Comment
  SEINET3837363  Ruppia maritima Unknown 1946-4-30 s.n. San Mateo .5 mile north of Redwood City Comment
  JROH1724  Sagina John Hunter Thomas 1984-4-8 23277 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1715  Sagina apetala Oz Garton 1968-5-27 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SJSU15762  Sagina decumbens subsp. occidentalis Toni Corelli 2010-5-13 612 San Mateo Pedro Point Headlands, Pacifica CA; off of South Ridge Road Trail in rocky ridge, scrub, native grassland area 180 Comment
  UC1076484  Sagina decumbens subsp. occidentalis Herbert L. Mason 1927-4-23 3685 San Mateo outcrop on rd. from La Honda to Pescadero Creek Comment
  POM163965  Sagina maxima subsp. crassicaulis Copeland 1903-6-5 3329 San Mateo Montara Point. Comment
  UC1191408  Salicornia europaea Malcolm A. Nobs and S. Galen Smith 1949-8-27 1624 San Mateo e of Redwood City Comment
  UC1191409  Salicornia europaea Herbert L. Mason and Malcolm A. Nobs 1948-12-11 713 San Mateo Highway 101, near shore of bay, at Whipple Avenue intersection, Redwood City Redwood City Comment
  CAS-BOT-BC125944  Salix X rubens George Oberlander 1950-4-16 627 San Mateo North of San Andreas Lake Comment
  UC492362  Salix lasiandra subsp. lasiandra Mrs. H. P. Bracelin 1932-7-4 640 San Mateo 4/10 mi e. Pescadero (Butano Creek Rd.) Comment
  JROH3872  Salix lasiandra var. lasiandra John H. Thomas 1971-4-21 15768 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC107129  Salix lasiolepis A. D. E. Elmer 1903-3-1 4875 San Mateo Searsville Lake Comment
  CAS-BOT-BC107133  Salix lasiolepis Peter H. Raven 1964-2-16 18742 San Mateo Just south of Lake San Andreas Comment
  CAS-BOT-BC107135  Salix lasiolepis Walther 1919-2-23 s.n. San Mateo Woodside Comment
  JROH3866  Salix lasiolepis Carol Zabel 1989-2-20 3 San Mateo Jasper Ridge Biological Preserve, Stanford University. Causeway bridge, Trail 13. Comment
  POM362648  Salix lasiolepis D. D. Keck 1932-3-6 1392 San Mateo Searsville Lake. 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
  CAS-BOT-BC108255  Salix lasiolepis var. bigelovii Peter H. Raven 1950-4-30 1981 San Mateo Along a stream in the Montara Mts. ca 1/2 mile N. of Montara 91 Comment
  CAS-BOT-BC124482  Salix lasiolepis var. lasiolepis Walter Knight; Irja Knight 1964-5-4 986 San Mateo Abandoned quarry south side of Colma Creek in Colma Canyon Comment
  CAS-BOT-BC124493  Salix lasiolepis var. lasiolepis W. R. Dudley 1894-3-23 s.n. San Mateo Corte de Madera Creek, Portola Valley Comment
  UC846969  Salix scouleriana Lewis S. Rose 1934-2-10 34025 San Mateo Skyline Blvd. 4 mi. s. of King's Mt. Comment
  CAS-BOT-BC129072  Salix scouleriana W. R. Dudley 1900-3-18 s.n. San Mateo Below Jersey Farm near Baden - Santa Cruz Peninsula Comment
  CAS-BOT-BC126489  Salix sitchensis A. D. E. Elmer 1903-3-1 4874 San Mateo Portola Comment
  CAS-BOT-BC126496  Salix sitchensis Javier Penalosa 1963-2-23 2640 San Mateo San Bruno Mtn. Ravine south of Crocker Ave. 213 Comment
  CAS-BOT-BC126502  Salix sitchensis W. R. Dudley 1904-3-7 69 San Mateo Bear Gulch, Santa Cruz Mts. 213 Comment
  CAS-BOT-BC126514  Salix sitchensis Lewis S. Rose 1964-3-14 64006 San Mateo Princeton 6 Comment
  CAS-BOT-BC166961  Salix sitchensis Peter Rubtzoff 1976-3-14 8448 San Mateo Saddle area on north side of Guadalupe Canyon Parkway, west of Radio Road junction, East Fork Colma Creek Canyon. Comment
  UC75015  Salix sitchensis unknown 1902-3 San Mateo King's Mt. Comment
  CAS-BOT-BC180792  Salsola soda William Anderson 1968-8-16 s.n. San Mateo Edge of salt marsh just above high tide line, west end of Dumbarton Bridge Comment
  SBBG40540  Salsola soda W. Anderson 1968-8-16 San Mateo W end of Dumbarton Bridge Comment
  JEPS29418  Salvia spathacea L. R. Heckard 1961-7-16 1266 San Mateo just below San Bruno Mt. summit (sw of transmitting station KQED); San Bruno Mt. 304 Comment
  JEPS62786  Salvia spathacea W. L. Jepson 1921-4-3 9107 San Mateo Colma Canyon Comment
  UC1219867  Salvia spathacea John H. Thomas 1961-5-7 9299 San Mateo San Bruno Mountain; n part of San Mateo County 304 Comment
  UC1327249  Salvia spathacea John T. Doyen 1966-3-28 32 San Mateo San Bruno Mountains; near Radio Towers at top Comment
  UC416705  Salvia spathacea Franklin P. Nutting 1892-1 San Mateo Comment
  SEINET12286992  Sambucus caerulea Unknown 1933-1 90 San Mateo Comment
  CAS-BOT-BC246019  Sambucus nigra subsp. caerulea Walter Knight; Walter Knight 1963-6-24 s.n. San Mateo Bottom of Quarry 4 and west ravine, San Bruno Mountain Comment
  CAS-BOT-BC246027  Sambucus nigra subsp. caerulea A. D. E. Elmer 1903-7-1 4689 San Mateo Portola Comment
  JEPS127879  Sambucus nigra subsp. caerulea Adam C. Schneider 2013-5-17 143 San Mateo Crystal Springs Reservoir Comment
  JROH1676  Sambucus nigra subsp. caerulea John Hunter Thomas 1989-5-9 24724 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC236466  Sambucus racemosa subsp. racemosa Alice Eastwood 1933-5-31 s.n. San Mateo Butano Creek Comment
  RSA34797  Sanguisorba I. L. Wiggins 1946-5-7 11203 San Mateo Strawberry Bend. Corte Madera Creek Rd. Comment
  UCD127909  Sanicula arctopoides Lewis S. Rose 1965-3-25 65012 San Mateo San Bruno Mountains, north end. 121 Comment
  JROH337  Sanicula crassicaulis John H. Thomas 1974-5-3 17243 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CHSC45763  Satureja douglasii Steven Triano 1988-5-24 198 San Mateo Ca 750 ft s of Hwy. 1 and 2.9 mi s of Pigeon Point Light Station. 24 Comment
  RSA18449  Satureja douglasii Carl B. Wolf 1927-6-29 558 San Mateo South of Pebble Beach near Pescadero. Comment
  RSA8352  Satureja douglasii L. S. Rose 1933-6-9 s.n. San Mateo 3 miles W of San Bruno. Comment
  POM274844  Saxifraga californica Lyman Benson 1930-3-31 2025 San Mateo Stanford University. 122 Comment
  JROH348  Scandix pecten-veneris John H. Thomas 1955-5-6 5011 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH360  Scandix pecten-veneris John Hunter Thomas 1983-5-23 22241 San Mateo Jasper Ridge Biological Preserve, Stanford University; near shack side and low-flow crossing Comment
  CAS-BOT-BC111605  Schoenoplectus californicus Herbert L. Mason; Verne Grant 1946-8-28 13092 San Mateo Pond, Highway 5, about 3 miles south of Daly City Road. Comment
  CAS-BOT-BC111603  Schoenoplectus californicus W. R. Dudley 1909-10-4 s.n. San Mateo North pond, northern part of county Comment
  SJSU15221  Schoenoplectus pungens var. longispicatus Toni Corelli 2011-5-23 703 San Mateo Bean Hollow State Beach, Arroyo de los Frijoles Trail. Coastal bluff top south of Bean Hollow Beach 7 Comment
  UC1104551  Scirpus cernuus J. H. Thomas 1959-7-8 8017 San Mateo Pescadero Beach bluffs at Pescadero Beach Comment
  POM170228  Scoliopus bigelovii C. F. Baker 1902-3-18 322 San Mateo Kings Mountain Comment
  POM202952  Scoliopus bigelovii Alice Eastwood 1933-4-30 s.n. San Mateo Lake Pilarcitos. Comment
  SEINET3888355  Scoliopus bigelovii Lewis S. Rose 1964-2-6 64000 San Mateo Kings Mountain.; 0 610 Comment
  POM193871  Scoliopus bigelovii W. R. Dudley 1895-3-5 s.n. San Mateo Kings Mt.; Plants of the Santa Cruz Peninsula. Comment
  SEINET12050520  Scoliopus bigelovii F. H. Utech 1988-1 88 -039 San Mateo 0.5 mi from jct of Kings Mt. Rd & CA 35 on former enroute to Woodside, near Skyline Hiking Trail 580 Comment
  SEINET12050524  Scoliopus bigelovii F. H. Utech 1988-1 88 -041 San Mateo 3.3 mi from junction of Kings Mt Rd & CA 35 on former enroute to Woodside 260 Comment
  SEINET12050532  Scoliopus bigelovii F. H. Utech 1988-1 88 -142 San Mateo 0.5 mi from jct of Kings Mt. Rd & CA 35 on former enroute to Woodside, Skyline Hiking Trail & jct 580 Comment
  SEINET12055153  Scoliopus bigelovii Unknown 1932-1 8918 San Mateo La Honda Road to Skyline Drive Comment
  JEPS23869  Scrophularia californica J. H. Thomas 1949-10-16 1153 San Mateo just n of outlet San Gregorio Creek Comment
  JROH4124  Scrophularia californica Richard L. Garber 1971-5-18 19 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM128330  Scrophularia californica R. L. Pendleton 1907-4-20 602 San Mateo Lake Merced. 30 Comment
  RSA131004  Scrophularia californica Deborah Hichborn 1920-4-20 s.n. San Mateo Near San Francisquito Creek. Santa Cruz Mountain Peninsula. Comment
  JROH2890  Scutellaria tuberosa John Hunter Thomas 1992-4-23 25161 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Rattlesnake Rocks and along trail to redwoods Comment
  RSA14791  Scutellaria tuberosa L. S. Rose 1935-5-1 35140 San Mateo Belmont. Comment
  UC76166  Scutellaria tuberosa Milo S. Baker 1904-5-15 San Mateo near Burlingame Comment
  SBBG33418  Sedum spathulifolium A. D. E. Elmer -Jun-1903 4550 San Mateo Crystal Springs Lake Comment
  CAS-BOT-BC59056  Sedum spathulifolium G. B. Rossbach 1939-6-18 756 San Mateo Montar Mts, Ledge near no 755 on SE slope of North Peak. 396 Comment
  CAS-BOT-BC59270  Sedum spathulifolium W. R. Dudley 1894-4-1 s.n. San Mateo San Mateo Reservoir. Comment
  CAS-BOT-BC59273  Sedum spathulifolium George Oberlander 1951-3-16 1156 San Mateo On Fiefield Ridge Comment
  RSA0074736  Sedum spathulifolium A. D. E. Elmer 1903-06 4550 San Mateo Toward San Mateo from Crystal Springs Lake. Comment
  SJSU5889  Sedum spathulifolium S. H. Casey 1969-5-18 247 San Mateo above Fern Rock on NE side of San Bruno Mt Comment
  CAS-BOT-BC363389  Senecio aronicoides Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. South Power Line Ridge Comment
  CAS-BOT-BC363396  Senecio aronicoides Le Roy Abrams 1901-5-11 1612 San Mateo Colma Comment
  RSA0012756  Senecio aronicoides C. F. Baker 1902-5-4 746 San Mateo Woodside. Comment
  CAS-BOT-BC363737  Senecio hydrophilus George Oberlander 1950-5-28 994 San Mateo San Francisco Watershed Reserve. Upper Crystal Springs Lake Comment
  CAS-BOT-BC364240  Senecio sylvaticus John H. Thomas 1961-5-7 9272 San Mateo San Bruno Mountain in northern part of county 396 Comment
  POM176867  Sequoia sempervirens E. G. Dudley 1904-1-21 74 San Mateo Santa Cruz Peninsula: Canada de Raymundo, Santa Cruz Mountains 274 Comment
  SEINET10612340  Sequoia sempervirens Charles F. Baker 1902-1-15 Baker 319 San Mateo West side King's Mountain. The redwood of the Coast Range. Plants of the Pacific Coast. Spermaphytes and Ferns. Distributed by C.F. Baker. Comment
  CDA2436  Setaria parviflora E. L. Labadie 1958-7-8 833 -58 San Mateo Redwood City. 0 Comment
  HSC83378  Sherardia arvensis K. L. Koch 1965-5-1 39 San Mateo Alpine Rd., 0.4 mi. from Portola Park turnoff 488 Comment
  JROH3826  Sherardia arvensis John H. Thomas 1955-5-6 4996 San Mateo Jasper Ridge Biological Preserve, Stanford University. Small draw on south side of ridge. 182 Comment
  JROH3838  Sherardia arvensis John Hunter Thomas 1992-4-23 25154 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Rattlesnake Rocks and along trail to redwoods Comment
  JEPS48780  Sidalcea malviflora subsp. laciniata James G. Daly 1934-1 211 San Mateo branch of La Honda Canyon Santa Cruz Mts., , La Honda Canyon (San Gregorio Watershed) Comment
  JEPS67241  Sidalcea malviflora subsp. malviflora W. L. Jepson 1921-4-3 9109 San Mateo canyon near Colma (Colma Canyon); n. San Mateo Co., Colma Canyon Comment
  JROH2972  Sidalcea malviflora subsp. malviflora John Hunter Thomas 1981-4-21 20465 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM203640  Sidalcea malviflora subsp. malviflora J. T. Howell 1933-4-9 10975 San Mateo 2 miles N. of Pigeon Pt. Comment
  POM214348  Sidalcea malviflora subsp. malviflora I. L. Wiggins 1931-2-21 5097 San Mateo Near Pescadero Comment
  CHSC27889  Sidalcea malviflora subsp. purpurea Susan Perkins 1978-3-24 8 San Mateo San Gregorio Beach, 100 yds w of jct Hwys 1 and 84, 9 mi w of La Honda. Bluff n side of San Gregorio Creek. 15 Comment
  CAS-BOT-BC384433  Silene coronaria Alexander Locke 1963-5-19 32 San Mateo 714 Alameda de los Pulgas, Belmont Comment
  CAS-BOT-BC386857  Silene gallica Margaret Barry 1937-5-15 144 San Mateo on Coal Mine Ridge Comment
  CAS-BOT-BC389197  Silene laciniata subsp. californica L. R. Abrams 1920-6-1 7494 San Mateo Santa Cruz Mountain Peninsula. Back of Redwood City Comment
  CAS-BOT-BC389198  Silene laciniata subsp. californica Brandegee No date on label s.n. San Mateo Crystal Springs Comment
  CAS-BOT-BC389200  Silene laciniata subsp. californica H. A. Dutton 1900-4-17 s.n. San Mateo Santa Cruz Peninsula. Woodside Comment
  CAS-BOT-BC389899  Silene scouleri subsp. scouleri Elizabeth McClintock; Paul Reeberg 1988-8-12 s.n. San Mateo San Bruno Mountains. Kamtchaka [Kamchatka] Point Comment
  CAS-BOT-BC364853  Silybum marianum W. R. Dudley 1893-6-8 s.n. San Mateo Santa Cruz Peninsula. Cedro Cottage, Stanford University Comment
  CAS-BOT-BC364855  Silybum marianum W. Knight; I. Knight 1964-5-4 s.n. San Mateo San Bruno Mountain. Crocker Hills Comment
  CAS-BOT-BC74989  Sinapis arvensis Fred Hemphill 1973-5-6 752 San Mateo San Carlos. North of Malabar Road and Melendy Drive. 207 Comment
  CAS-BOT-BC74985  Sinapis arvensis D. D. Davis 1903-3-1 s.n. San Mateo Unspecified. Comment
  POM273726B  Sisymbrium officinale Lyman Benson 1935-5-5 6533 San Mateo Lake Searsville. Stanford University. Santa Cruz Mtn range. S.F. Bay watershed. 152 Comment
  SD227685  Sisyrinchium bellum G. K. Helmkamp, E. A. Helmkamp 1998-5-16 3746 San Mateo Portola Valley: Golden Hills Rd along Los Trancos Creek. 106 Comment
  SEINET3558360 Image available Sisyrinchium bellum David D. Keck 1932-5-6 1467 San Mateo Belmont, Belmont. Comment
  UC75049  Sisyrinchium bellum C. F. Baker 1902-3-30 428 San Mateo Crystal Springs Lake Comment
  POM291007  Sisyrinchium bellum Lyman Benson 1931-3-15 2640 San Mateo Emerald Lake; Redwood City; Mt. Range: Santa Cruz 152 Comment
  SEINET4171036  Sisyrinchium bellum Unknown 1925-3-17 San Mateo Burlingame Comment
  RSA18327  Sisyrinchium californicum Carl B. Wolf 1929-5-10 3708 San Mateo Coast at Pigeon Pt. South of Pescadero. Comment
  UC1134665  Smilacina racemosa G. E. Sindel 1935-8-2 342 San Mateo Harington Creek Santa Cruz Quadrangle (head) Comment
  JROH4179  Solanum americanum John Hunter Thomas 1982-7-2 21054 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near low-flow crossing Comment
  JROH6178  Solanum americanum John Rawlings 2017-10-3 2302 San Mateo Jasper Ridge Biological Preserve, Stanford University. Corte Madera Creek 111 Comment
  RSA152273  Solanum furcatum John H. Thomas 1961-5-7 9302 San Mateo San Bruno Mountain, in northern part of county. 305 Comment
  RSA784604  Solanum nodiflorum Peter Rubtzoff 1974-12-17 7942 San Mateo San Bruno Mountains. 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  JROH4187  Solanum umbelliferum John H. Thomas 1967-5-12 12887 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM203826  Solanum umbelliferum L. S. Rose 1934-2-10 34024 San Mateo Woodside Canyons in hills. Comment
  SD37373  Solanum umbelliferum Delzie Demaree 1932-4-9 8981 San Mateo Los Trancos Woods Comment
  UC676731  Solanum umbelliferum Reed C. Rollins 1941-3-16 2944 San Mateo about 6 mi w of Woodside (e slope of Kings Mountain); Santa Cruz Mountains, Kings Mountain 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
  RSA133955  Solidago canadensis subsp. elongata John H. Thomas 1959-8-16 8065 San Mateo About two miles southwest of Pescadero. 61 Comment
  CAS-BOT-BC365533  Solidago elongata R. E. Frenkel 1963-12-7 324 San Mateo San Francisco Water District, Whiting Ridge Road, ca. 0.9 mile south-west of Spring Valley Road Comment
  JROH1237  Solidago velutina subsp. californica John Hunter Thomas 1990-7-28 24938 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC365924  Soliva sessilis W. R. Dudley 1895-6-6 s.n. San Mateo Santa Cruz Peninsula. Near Pescadero Creek Comment
  JROH1244  Soliva sessilis John Hunter Thomas 1978-5-12 19202 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA320914  Soliva sessilis Robert A. Norris 1984-3-21 4651 San Mateo Along trail in saddle between Parking Area (and summit) and Blue Blossom Hill, San Bruno Mtns. 305 Comment
  UCD23458  Soliva sessilis E. A. Parzail 1949-8-1 s.n. San Mateo 1144 Cortez Avenue, Burlingame. Comment
  JEPS128402  Sonchus asper subsp. asper Adam C. Schneider 2013-5-17 135 San Mateo Crystal Springs Reservoir. Comment
  JROH1256  Sonchus asper subsp. asper John H. Thomas 1968-5-3 14438 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM292654  Sonchus oleraceus Lyman Benson 1928-12-15 837 San Mateo Lake Searsville, Stanford, Santa Cruz, San Francisco Bay 152 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-BC374696  Sonchus oleraceus Ira L. Wiggins 1979-8-26 22247 San Mateo Alley between Central and Woodland Avenues, running from Pope to Gilbert Streets, Menlo Park Comment
  CAS-BOT-BC374703  Sonchus oleraceus Josephine D. Randall 1907-4-27 99 San Mateo Santa Cruz Peninsula. Kings Mt. Comment
  RSA121019  Spartina foliosa J. T. Howell 1956-11-22 31962 San Mateo Redwood City Comment
  RSA159416  Spergula arvensis John H. Thomas 1961-5-7 9247 San Mateo Colma, near intersection of El Camino Real and F Street 46 Comment
Read comments
Aug 15 2014
  RSA15628  Spergula arvensis C. B. Wolf 1928-2-16 1476 San Mateo Near Alpine Road. Comment
  JROH1764  Spergularia John Hunter Thomas 1986-4-30 23984 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC390204  Spergularia bocconi G. B. Rossbach; R. P. Rossbach 1940-6-20 737 San Mateo 1 mile south of Montara Point Comment
  CAS-BOT-BC344921  Spergularia macrotheca Peter Rubtzoff; Jacob Sigg 1990-11-12 10245 San Mateo Sharp Park, south of Laguna Salada. 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-BC390455  Spergularia macrotheca var. macrotheca J. H. Thomas 1949-6-4 584 San Mateo 1.4 miles S. of road leading to Pescadero Comment
  CAS-BOT-BC390920  Spergularia marina Malcom A. Nobs; S. Galen Smith 1949-8-26 1596 San Mateo At the mouth of Pescadero Creek Comment
  SJSU15220  Stachys ajugoides Toni Corelli 2011-5-23 702 San Mateo Bean Hollow State Beach, Arroyo de los Frijoles Trail. Coastal bluff top south of Bean Hollow Beach 10 Comment
  SJSU15801  Stachys ajugoides Toni Corelli 2010-6-1 637 San Mateo Wavecrest, west of Highway 1 in Half Moon Bay. 25 Comment
  JEPS82539  Stachys bullata Roger Raiche 1984-5-13 40151 San Mateo San Pedro Creek Montara Mt. 30 Comment
  UCLA71396  Stachys bullata Alice Eastwood 1933-5-31 18840 San Mateo on road near Pescadero Comment
  UCLA71403  Stachys bullata Ira L. Wiggins 1929-7-4 3783 San Mateo 4 mi w La Honda (on hill road to Pescadero) Comment
  JROH2904  Stachys bullata John Hunter Thomas 1977-6-16 18809 San Mateo Jasper Ridge Biological Preserve, Stanford University; in Searsville Lake Comment
  POM63312  Stachys bullata A. D. E. Elmer 1903-06 4417 San Mateo San Mateo Comment
  SEINET10499250  Stachys bullata A. Arthur Heller 1907-5-28 Heller 8581 San Mateo Back of San Mateo on the Half Moon Bay road Comment
  UCD126015  Stachys bullata J. D. Skoss 1948-8-22 97 San Mateo San Vicente Canyon, near Montara. Comment
  POM204001  Stachys pycnantha L. S. Rose 1934-5-27 s.n. San Mateo Emerald Lake. Comment
  RSA152069  Stachys rigida subsp. quercetorum John H. Thomas 1961-5-12 9330 San Mateo San Bruno Mountain in northern part of county. 305 Comment
  CAS-BOT-BC164654  Stachys rigida subsp. quercetorum Peter Rubtzoff; Elizabeth McClintock; Barbara Deutsch 1978-6-4 9202 San Mateo San Bruno Mountain. Saddle area on north side of Guadalupe Canyon Parkway west of Radio Road junction. Comment
  UC36684  Stebbinsoseris heterocarpa Alice Eastwood May 1890 - May 1896 San Mateo Crystal Springs Comment
  JROH1779  Stellaria media John H. Thomas 1968-3-17 14181 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1787  Stellaria media John Hunter Thomas 1983-4-5 21323 San Mateo Jasper Ridge Biological Preserve, Stanford University; low-flow crossing Comment
  RSA478185  Stellaria media Glenn A. Gorelick 1967-4-15 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  JROH5733  Stellaria nitens John Rawlings 2013-4-16 1653 San Mateo Jasper Ridge Biological Preserve, Stanford University; Trail 2 extension south of the Dengler Transect after a short uphill section 84 Comment
  CAS-BOT-BC375211  Stephanomeria elata Elizabeth McClintock; Walter Knight; Irja Knight 1967-8-1 s.n. San Mateo San Bruno Mountain. South side of Ridge Road about 200 yards south of Parking Lot Comment
  RSA128948  Stephanomeria virgata subsp. virgata J. T. Howell 1939-10-8 15369 San Mateo Pt San Pedro. Comment
  JROH5320  Stipa lepida Duncan M. Porter 1960-4-22 649 D San Mateo Jasper Ridge Biological Preserve, Stanford University; meadow near crest of N-facing slope above Webb Ranch Comment
  JROH5332  Stipa pulchra Duncan M. Porter 1960-5-5 685 San Mateo Jasper Ridge Biological Preserve, Stanford University. Meadow near crest of N-facing slope above Webb Ranch. Comment
  JROH5333  Stipa pulchra John H. Thomas 1963-3-20 10023 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  CAS-BOT-BC423011  Stylomecon heterophylla W. R. Dudley 1905-5-13 s.n. San Mateo Santa Cruz Mountain Peninsula. S.W. of San Mateo Comment
  SEINET8060318  Symphoricarpos albus C. F. Baker 1901-9-5 238 San Mateo West side Kings Mountain. Comment
  CAS-BOT-BC271645  Symphoricarpos albus var. laevigatus Margaret A. Barry 1937-5-23 152 San Mateo Coal Mine Ridge Comment
  RSA14209  Symphoricarpos albus var. laevigatus C. B. Wolf 1926-10-19 193 San Mateo Roadside slope, west of La Honda. Comment
  RSA770503  Symphoricarpos albus var. laevigatus Lyman Benson 1930-5-3 2091 San Mateo Above Woodside, La Honda Grade; Mt. range: Santa Cruz. 244 Comment
  UC527526  Symphoricarpos albus var. laevigatus C. B. Wolf 1931-8-20 San Mateo 2 mi back Stanford University (near Schenkel's Camp, Los Trancos Creek); Los Trancos Creek 91 Comment
  CAS-BOT-BC237066  Symphoricarpos mollis Phillip C. Wheeler 1965-4-27 s.n. San Mateo Live Oak Canyon, San Bruno Mountain Comment
  SJSU14728  Symphoricarpos orbiculatus C. W. Sharsmith 1991-12-14 9230 San Mateo Yerba Buena Nursery, Woodside Comment
  CAS-BOT-BC99052  Symphyotrichum chilense Lewis S. Rose 1933-10-14 33381 San Mateo Visitacion Valley Comment
  SJSU11805  Symphyotrichum chilense R. E. Douglas 1964-11-11 San Mateo Half Moon Bay Comment
  CAS-BOT-BC99054  Symphyotrichum chilense Alice Eastwood; John Thomas Howell Apr. 24, 1938. 5253 San Mateo Tunitas Comment
  CAS-BOT-BC99062  Symphyotrichum chilense Walter Knight; Irja Knight 1963-7-14 s.n. San Mateo San Bruno Mountain - Quarry 4 Comment
  CAS-BOT-BC99064  Symphyotrichum chilense Peter Rubtzoff 1975-10-4 8416 San Mateo San Bruno Mountain - on ridge northwest of Fog Forest Comment
  CAS-BOT-BC99085  Symphyotrichum chilense W. R. Dudley 1899-12-2 s.n. San Mateo Near the coast between Pebble Beach and White House Creek - Santa Cruz Mountain Peninsula Comment
  CAS-BOT-BC99089  Symphyotrichum chilense Josephine D. Randall 1907-7-4 55 San Mateo Mills Lake near Stanford University - Santa Cruz Peninsula Comment
  JEPS49084  Symphyotrichum subspicatum Lewis S. Rose 1966-8-15 66083 San Mateo Pillar Point Comment
Read comments
Feb 2 2012
  JEPS81901  Symphyotrichum subspicatum Roger Raiche 1982-9-6 20719 San Mateo Northeast slope Montara Mt. Montara Mt. 243 Comment
  CAS-BOT-BC376710  Tanacetum bipinnatum Walter Knight; Irja Knight 1963-8-5 s.n. San Mateo San Bruno Mountain. Radio Road Comment
  CAS-BOT-BC376917  Taraxacum officinale J. H. Thomas 1964-4-30 10337 San Mateo Near intersection of El Camino Real and F St., Colma Comment
  JROH1287  Taraxacum officinale John Hunter Thomas 1981-2-14 20230 San Mateo Jasper Ridge Biological Preserve, Stanford University; old picnic area below dam Comment
  JROH2997  Taraxia ovata W. R. Dudley 1894-3-24 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; canada above Searsville Reservoir Comment
  JROH5751  Taraxia ovata L. Nordby 1982-4-15 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Searsville Lab on the west side of Searsville Lake. Comment
  CAS-BOT-BC447472  Tellima grandiflora A. D. E. Elmer 1903-6-1 4702 San Mateo Pescadero Comment
  JROH3910  Tellima grandiflora H. J. Dengler 1961-5-8 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Shaded creek bank N.E. of Searsville Rocks, across creek from violet site. Comment
  UCR51661  Thalictrum fendleri 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
  UC727238  Thalictrum fendleri var. polycarpum W. R. Dudley 1904-4-10 San Mateo Alpine Rd Santa Cruz Mountain Peninsula, Black Mt. Comment
  CAS-BOT-BC66665  Thysanocarpus curvipes John H. Thomas 1971-4-24 15775 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-BC66676  Thysanocarpus curvipes Margaret A. Barry 1937-4-21 18 San Mateo On Coal Mine Ridge. Comment
  JROH1589  Thysanocarpus curvipes John Hunter Thomas 1980-4-5 19859 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH1611  Thysanocarpus curvipes John Hunter Thomas 1987-4-4 24167 San Mateo Jasper Ridge Biological Preserve, Stanford University; below Searsville Dam Comment
  JROH1622  Thysanocarpus curvipes John Hunter Thomas 1991-4-6 24974 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC66682  Thysanocarpus curvipes George Oberlander 1949-4-22 688 San Mateo San Francisco Watershed Reserve. On Northern Cahill Ridge. Comment
  JROH1609  Thysanocarpus curvipes John Hunter Thomas 1986-5-1 23993 San Mateo Jasper Ridge Biological Preserve, Stanford University; near old gate and fence (which has now been removed) Comment
  JROH1593  Thysanocarpus curvipes subsp. curvipes John Hunter Thomas 1981-4-7 20299 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  CAS-BOT-BC447582  Tiarella trifoliata var. unifoliata W. R. Dudley 1905-6-18 s.n. San Mateo Santa Cruz Mountain Peninsula: Iverson's Old Place Pescadero Creek Comment
  JROH377  Torilis arvensis John Hunter Thomas 1989-6-13 24770 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
  CAS-BOT-BC81495  Torreya californica Ira L. Wiggins 1945-5-5 11160 San Mateo along La Honda Creek about 1 mile above La Honda 152 Comment
  CAS-BOT-BC81499  Torreya californica Ira L. Wiggins 1945-5-5 11161 San Mateo along La Honda Creek about 1 mile above La Honda 152 Comment
  RSA386599  Toxicodendron diversilobum Glenn A. Gorelick 1967-4-15 s.n. San Mateo San Bruno Mountains, overlooking Daly City near San Francisco. Comment
  CAS-BOT-BC377138  Tragopogon porrifolius Phillip Wheeler 1965-6-19 s.n. San Mateo San Bruno Mountain. Crocker Industrial Park Comment
  RSA681672  Trichostema lanatum Deb Annuschka 1989-6-13 230 San Mateo Yerba Buena Herbarium Demonstration Garden. Comment
  JROH3397  Trientalis latifolia John Hunter Thomas 1985-4-22 23542 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM128507  Trientalis latifolia L. R. Abrams 1902-5-20 2468 San Mateo Kings Mountain Comment
  RSA116718  Trientalis latifolia H. L. Mason 1917-4-21 s.n. San Mateo Permental Creek Comment
  POM88143  Trifolium bifidum L. R. Abrams 1902-5-20 2470 San Mateo Kings Mountain Comment
  UC203043  Trifolium bifidum var. bifidum A. D. E. Elmer May, 1903 4714 San Mateo Portola Comment
  JROH2249  Trifolium bifidum var. decipiens John H. Thomas 1955-5-6 5009 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2252  Trifolium bifidum var. decipiens John H. Thomas 1964-4-19 10317 San Mateo Jasper Ridge Biological Preserve, Stanford University; near Searsville end of ridge Comment
  JROH2253  Trifolium bifidum var. decipiens John H. Thomas 1967-5-12 12879 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR123140  Trifolium campestre George K. Helmkamp, E. A. Helmkamp 2001-6-2 6766 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  RSA131348  Trifolium depauperatum var. amplectens John H. Thomas 1955-5-6 4990 San Mateo Jasper Ridge about 3.5 miles southwest of Stanford University. 152 Comment
  UC165566  Trifolium depauperatum var. amplectens J. Burtt Davy 1895-1 1020 San Mateo Pilarcitos Comment
  UC631216  Trifolium depauperatum var. amplectens P. B. Kennedy 1928-5-2 10099 San Mateo e Daly City (hills) Comment
  UC630933  Trifolium depauperatum var. depauperatum P. B. Kennedy 1928-5-2 10098 San Mateo e Daly city (hills) Comment
  JROH2269  Trifolium depauperatum var. truncatum John H. Thomas 1964-4-19 10320 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2281  Trifolium fucatum Marie Tifft 1952-5-10 42 San Mateo Jasper Ridge Biological Preserve, Stanford University; above Searsville Lake Comment
  JROH2290  Trifolium fucatum John H. Thomas 1973-4-14 16560 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2302  Trifolium fucatum John Hunter Thomas 1985-4-11 23522 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA120972  Trifolium fucatum var. fucatum L. R. Abrams 1914-4-5 5086 San Mateo Menlo Park Comment
  JROH2329  Trifolium hirtum John Hunter Thomas 1986-6-3 24077 San Mateo Jasper Ridge Biological Preserve, Stanford University; old beach Comment
  JROH5566  Trifolium hirtum John Rawlings 2013-4-30 1197 San Mateo Jasper Ridge Biological Preserve, Stanford University. Along east side of Road C south of the San Francisquito Creek bridge. 89 Comment
  JROH2331  Trifolium hirtum Carol Zabel 1989-4-19 12 San Mateo Jasper Ridge Biological Preserve, Stanford University; Road C Comment
  SBBG39488  Trifolium hirtum L. S. Rose 1970-4-23 San Mateo Skyline Blvd, W of San Mateo 121 Comment
  RSA128600  Trifolium macraei Peter H. Raven 1950-4-30 1991 San Mateo Montara Mts. 122 Comment
  SEINET8232361  Trifolium macraei A. D. E. Elmer 1903-1 4812 San Mateo San Pedro. Comment
  POM126710  Trifolium microcephalum R. L. Pendleton 1907-4-20 611 San Mateo Lake Merced. 30 Comment
  UCSC006059  Trifolium oliganthum Randall Morgan 1996-5-24 2972 San Mateo Pescadero Creek Comment
  JROH2349  Trifolium subterraneum John Hunter Thomas 1982-5-18 20936 San Mateo Jasper Ridge Biological Preserve, Stanford University; old racing oval Comment
  JROH2353  Trifolium subterraneum John Hunter Thomas 1984-4-7 23274 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH2374  Trifolium variegatum John H. Thomas 1956-4-7 5605 San Mateo Jasper Ridge Biological Preserve, Stanford University; on top of ridge and adjacent slopes Comment
  UCSC006378  Trifolium variegatum Randall Morgan 1995-6-22 2796 San Mateo On flat top ridge W of Waterman Creek, Redtree Properties 335 Comment
  RSA95537  Trifolium variegatum var. melananthum L. S. Rose 1953-4-5 53011 San Mateo Redwood City, along Bayshore Highway. 3 Comment
  UCSC004602  Trifolium vesiculosum Randall Morgan 2004-4-16 4239 San Mateo Dejernosi property NW of Skylanda Comment
  JROH2405  Trifolium willdenovii John Hunter Thomas 1980-4-10 19875 San Mateo Jasper Ridge Biological Preserve, Stanford University; below dam Comment
  POM277649  Trifolium willdenovii Lyman D. Benson 1930-5-3 2095 San Mateo Roadside on La Honda Grade. Above Woodside. Santa Cruz Mtn range. 305 Comment
  RSA120987  Trifolium willdenovii Helen M. Edwards 1917-03 s.n. San Mateo Crystal Springs Lake. Comment
  JROH2408  Trifolium willdenovii John Hunter Thomas 1984-5-3 23332 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM20402  Trifolium wormskioldii A. D. E. Elmer 1903-04 4858 San Mateo Lake San Andreas Comment
  CAS-BOT-BC451907  Triglochin maritima Le Roy Abrams 1901-3-1 1145 San Mateo Cooley's Landing Comment
  CAS-BOT-BC451908  Triglochin maritima Le Roy Abrams 1901-3-16 1145 San Mateo Cooley's Landing Comment
  JROH4729  Trillium chloropetalum John H. Thomas 1977-4-21 18538 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4731  Trillium chloropetalum John H. Thomas 1979-4-8 19444 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1140924  Trillium chloropetalum W. R. Dudley 1900-3-16 San Mateo by trail n. of Tripp's Store Woodside; Santa Cruz Peninsula, Woodside Comment
  SEINET5577479  Trillium chloropetalum H. S. Gentry 1931-1 1 San Mateo Collected 1.5 miles west of San Mateo, Half-moon Bay road. Comment
  CAS-BOT-BC133432  Trillium ovatum W. R. Dudley 1893-4-1 s.n. San Mateo Bear Gulch [Canon] Canyon, near Woodside Comment
  CAS-BOT-BC133446  Trillium ovatum J. H. Thomas 1949-3-29 190 San Mateo King's Mountain Comment
  UC1327237  Triphysaria eriantha subsp. eriantha John T. Doyen 1966-3-28 36 San Mateo San Bruno Mountain; near Radio Towers on top Comment
  JEPS10697  Triphysaria eriantha subsp. rosea W. L. Jepson 1921-4-3 9117 San Mateo near Colma (Colma Canyon); Colma Canyon Comment
  UCD123413  Triphysaria eriantha subsp. rosea Lewis S. Rose 1965-3-25 65010 San Mateo San Bruno Mountains, north end. 121 Comment
  CAS-BOT-BC238561  Triphysaria floribunda L. S. Rose 1927-5-1 s.n. San Mateo San Mateo Comment
  CAS-BOT-BC238564  Triphysaria floribunda W. R. Dudley 1899-5-14 s.n. San Mateo The Santa Cruz Peninsula. Baden Comment
  CAS-BOT-BC238574  Triphysaria floribunda W. C. McCalla 1925-4-29 3437 San Mateo Along Skyline Blvd., 15 miles south of San Francisco Comment
  CAS-BOT-BC238571  Triphysaria floribunda W. R. Dudley 1897-5-8 s.n. San Mateo The Santa Cruz Peninsula. By road above Belmont School Comment
  JROH4144  Triphysaria pusilla John Hunter Thomas 1985-4-18 23527 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UC1063255  Triphysaria pusilla H. S. Yates 1935-5-8 5208 San Mateo 2 mi n Langley Hill; Santa Cruz Quad. Comment
  SEINET7097920  Triphysaria versicolor subsp. faucibarbata 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
  JROH5466  Trisetum canescens John H. Thomas 1967-5-12 12869 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SEINET12044735  Triteleia ixioides P. R. Hichborn 1921-1 231 San Mateo Santa Cruz Mountain peninsula Comment
  CAS-BOT-BC523100  Triteleia ixioides subsp. ixioides C. F. Leithold 1893-5-27 s.n. San Mateo Santa Cruz Peninsula, road between Woodside and King's Mountain Comment
  JROH4749  Triteleia laxa John H. Thomas 1974-4-13 17147 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4752  Triteleia laxa John Hunter Thomas 1977-6-16 18777 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  JROH4753  Triteleia laxa John H. Thomas 1978-5-16 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  RSA18305  Triteleia laxa Carl B. Wolf 1927-5-31 411 San Mateo North end of Searsville Lake. Comment
  SD39088  Triteleia laxa Janet Turner 1933-4-18 3688 San Mateo Emerald Lake. Comment
  CAS-BOT-BC526369  Triteleia laxa Elizabeth McClintock; Walter Knight; Irja Knight; Baki Kasapligil 1967-7-18 s.n. San Mateo Colma Canyon near old quarry, San Bruno Mountain Comment
  IRVC9054  Triteleia laxa P. W. Rundel 1963-6-11 1118 San Mateo San Fransisco Bay drainage area; Old La Honda Road. Santa Cruz Mountain Range 305 Comment
  CAS-BOT-BC200487  Triticum aestivum Phillip C. Wheeler 1965-6-19 s.n. San Mateo Brisbane Lagoon Comment
  POM273891B  Tropidocarpum gracile Lyman Benson 1930-5-1 2047 San Mateo Stanford University. Mt. Range: San Lorenzo. 122 Comment
  CAS-BOT-BC74053  Turritis glabra John F. Emmel 1971-4-24 344 San Mateo 0.25 mile southwest of Natalie M. Lipman School, south edge of Guadalupe Valley, west edge of Brisbane. 60 Comment
  CAS-BOT-BC74060  Turritis glabra Volney Rattan 1877-1-1 s.n. San Mateo San Mateo Cemetery. Comment
  CAS-BOT-BC74063  Turritis glabra George Oberlander 1950-5-28 954 San Mateo San Francisco Watershed Reserve. Southern Cahill Ridge. Comment
  JROH5535  Typha angustifolia John H. Thomas 1973-6-15 16852 San Mateo Jasper Ridge Biological Preserve, Stanford University. By dam in Searsville Lake Comment
  JROH5538  Typha latifolia John Hunter Thomas 1982-11-6 21202 San Mateo Jasper Ridge Biological Preserve, Stanford University. Delta along edge of Searsville Lake Comment
  CAS-BOT-BC213100  Ulex europaeus J. H. Thomas 1961-5-7 9322 San Mateo San Bruno Mountain in northern part of county Comment
  JROH5760  Ulex europaeus John Rawlings, Bob Dodge 2016-3-1 1676 San Mateo Jasper Ridge Biological Preserve, Stanford University; hidden in plain view adjacent to the Bike Bowl 50 m west of Sun Field Station visitor parking. Comment
  RSA254229  Ulex europaeus Robert A. Norris 1975-3-31 2292 San Mateo Near Crocker Avenue, San Bruno Mountains. Comment
  RSA563837  Ulex europaeus Don Pendleton 1993-10-28 s.n. San Mateo San Bruno Mountain State/County Park, 0.3 mi. E. of the park gate/parking lot on Guadalupe Canyon Park. 300 Comment
  JROH141  Umbellularia californica John Hunter Thomas 1981-2-15 20216 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  POM272291  Umbellularia californica Lyman Benson 1929-3-4 984 San Mateo Hill east of Lake Searsville. Comment
  POM272292  Umbellularia californica Lyman Benson 1931-2-16 2582 a San Mateo Stanford University, San Francisquito Creek. 61 Comment
  RSA132457  Umbellularia californica John H. Thomas 1959-8-22 8081 San Mateo Jasper Ridge, about 5 miles southwest of Palo Alto. 152 Comment
  POM87994  Urtica dioica subsp. holosericea L. R. Abrams 1901-09 2218 San Mateo Menlo Park. Comment
  POM580641  Urtica urens Lyman D. Benson 1935-5-12 6548 San Mateo Menlo Park 30 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
  UC1302442  Vaccinium cespitosum Robert F. Thorne and P. Everett 1963-6-9 32214 San Mateo near TV tower on San Bruno Mountain; Kamchatka Point 335 Comment
  CAS-BOT-BC199370  Vaccinium ovatum James McMurphy 1907-4-27 js.n. San Mateo Kings Mt. Comment
  OBI14436  Vaccinium ovatum Lewis S. Rose 1964-3-14 64005 San Mateo Kings Mountain 610 Comment
  POM216297  Vaccinium ovatum D. D. Keck 1933-5-11 2302 San Mateo Montara Summit, Montara Mountain. Comment
  RSA187267  Vaccinium ovatum W. R. Dudley 1898-3-5 s.n. San Mateo King's Mountain. Comment
  SD38449  Vaccinium ovatum M. C. 1933-5-23 3683 San Mateo Skyline Boulevard. Comment
  UC571033  Vaccinium ovatum Herbert L. Mason 1927-4-23 3671 San Mateo La Honda Comment
  CDA38876  Vaccinium ovatum A. C. Browne 1950-5-3 s.n. San Mateo La Honda. 0 Comment
  JEPS90930  Vaccinium ovatum var. ovatum Dean W. Taylor 1988-4-29 9587 San Mateo n slope of San Bruno Mountain 0.3 mi n(22d)w of summit, summit of small hill (local botaniceal placename of Kamchatka Point), Santa Cruz Mountains San Bruno Mountain; Santa Cruz Mountains, San Bruno Mountain 371 Comment
  RSA112361  Vaccinium parvifolium W. R. Dudley 1895-9-15 s.n. San Mateo El Corte de Madera, west side., Santa Cruz Range. Comment
  RSA112362  Vaccinium parvifolium W. R. Dudley 1895-6-6 s.n. San Mateo Out trail from Iverson's Pescadero Creek to top Butano Ridge. Comment
  UC22218  Vaccinium parvifolium W. J. V. Osterhout Jul 1899 San Mateo Near Pescadero Comment
  CAS-BOT-BC76139  Vancouveria planipetala Eric Walther 1919-6-9 s.n. San Mateo Woodside. Comment
  CAS-BOT-BC389676  Verbena lasiostachys Maryann Danielson 1969-7-21 s.n. San Mateo On road into Mud Lake (San Francisco Watershed area-Dam side) Comment
  JROH4281  Verbena lasiostachys var. scabrida John Hunter Thomas 1983-6-2 22325 San Mateo Jasper Ridge Biological Preserve, Stanford University. Near the low-flow crossing Comment
  UC615560  Verbena lasiostachys var. scabrida Beryl O. Schreiber 1932-5-29 307 San Mateo Crystal Springs Comment
  JROH5832  Veronica americana Ann Lambrecht, Teri Barry, Nona Chiariello, and Alice Cummings 2014-5-20 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University; Corte Madera Creek delta of Searsville Lake Comment
  JROH2427  Vicia benghalensis John Hunter Thomas 1977-6-16 18797 -2 San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  SBBG30068  Vicia benghalensis J. T. Howell 1938-6-4 13886 San Mateo Burlingame Comment
  SJSU15431  Vicia benghalensis Toni Corelli 2010-5-4 624 a San Mateo Ano Nuevo State Park, Cascade Field, Cascade Creek Trail 25 Comment
  SEINET7076099  Vicia sativa A. G. Vestal 1955-5-31 s.n. San Mateo Near Pebble Beach off Route 1. (NAD 27; 37.2369? deg. North Latitude, 122.4153? deg. West Longitude, UTM Zone 10, 551863mE, 4121109mN). [GPS Coordinate: WGS84/NAD83]. Comment
  UCD164333  Vicia sativa Peter Rubtzoff 1976-6-30 8709 San Mateo San Bruno Mountains. 'Saddle' area on N side of Guadalupe Canyon Parkway west of Radio Road junction, upper part of East Fork Colma Creek Canyon. Comment
  JROH2447  Vicia sativa subsp. sativa John Hunter Thomas 1981-4-30 20516 A San Mateo Jasper Ridge Biological Preserve, Stanford University Comment
  UCR123141  Vicia sativa subsp. sativa George K. Helmkamp, E. A. Helmkamp 2001-6-2 6765 San Mateo Central Coast, Pillar Point Harbor, about 4 miles north of Half Moon Bay 6 Comment
  UCD108798  Vicia tetrasperma G. K. Helmkamp; E. A. Helmkamp 2001-6-2 6769 San Mateo Central CA coast: Purissima Road. E of Half Moon Bay, 1.9 miles E of CA-1. 168 Comment
  POM257512  Vicia villosa Carl B. Wolf 1929-5-27 3737 San Mateo Los Trancos Creek back of Stanford University. Comment
  JROH2455  Vicia villosa subsp. varia John Rawlings 2012-5-15 1120 San Mateo Jasper Ridge Biological Preserve, Stanford University. South side of Road B. 89 Comment
  UC729850  Vicia villosa subsp. varia Carl B. Wolf 1929-5-27 3737 San Mateo back of Stanford University (Los Trancos Creek); Los Trancos Creek Comment
  JROH5883  Vinca major J. C. Gaither Jr. 1982-5-14 s.n. San Mateo Jasper Ridge Biological Preserve, Stanford University. Near Whiskey Hill Gate. Comment
  SFV8403  Vinca major P. Kuehn 1967-5-7 15 San Mateo Skyline Blvd, 8 miles from Half Moon Bay. 610 Comment
  CAS-BOT-BC264030  Viola adunca W. R. Dudley 1894-3-28 s.n. San Mateo Santa Cruz Mountain Peninsula. Near Pebbly Beach, Pescadero Comment
  CAS-BOT-BC264041  Viola adunca Elizabeth McClintock 1965-3-14 s.n. San Mateo San Bruno Mountain. Cable Ravine, on left ridge Comment
  SD27771  Viola glabella Carl B. Wolf 1927-4-3 244 San Mateo 1 mi. above La Honda, near stream 244 Comment
  RSA120705  Viola ocellata S. S. Tillett, I. Sternback 1956-6-24 527 San Mateo Middleton property, behind (N.) Portola Camp Store, just outside Portola State Park. 396 Comment
  UCR64473  Viola ocellata David D. Keck 1932-6-1 1495 San Mateo Coast Range; Santa Cruz Mtns, above Woodside on La Honda road 366 Comment
  RSA184886  Viola pedunculata L. S. Rose 1965-3-25 65009 San Mateo San Bruno Mountains, north end. 122 Comment
  RSA249485  Viola pedunculata John F. Emmel 1971-6-21 397 San Mateo On grassy slope above Guadalupe Cyn Parkway, 0.4 air mile SSW of Midway Village School, San Bruno Mtns. 107 Comment
  RSA0056266  Viola sarmentosa W. M. Arbaugh 1968-4-10 225 San Mateo Butano State Park. Comment
  RSA130690  Viola sempervirens W. R. Dudley 1894-7-7 s.n. San Mateo Bear Gulch Road. The Santa Cruz Mtn Peninsula. Comment
  RSA130691  Viola sempervirens W. R. Dudley 1893-1-20 s.n. San Mateo El Corte Madera. The Santa Cruz Mountain Peninsula. Comment