Search Results — 2000 specimen records retrieved (1258 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/consortium/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC383909  Abronia latifolia Mrs. H. C. Cantelow 1940-4-20 4023 Sonoma N. of Bay nr mouth of Salmon River Comment
  SEINET946043  Abronia latifolia Leo A. Galloway 1968-1 598 Sonoma Doran County Park. Comment
  CHSC1074  Abronia maritima A. Small 1954-6-4 Sonoma Doran Park. Comment
  CAS-BOT-BC177031  Acacia dealbata Walter Knight; Irja Knight 1990-3-22 6585 Sonoma Petaluma, on North N. McDowell between Palo Verde Dr. and Sunrise Dr. on west side of road Comment
  CAS-BOT-BC436982  Acaena novae-zelandiae Roger Raiche 1985-7-14 50638 Sonoma Horseshoe Cove just north of Horseshoe Point, Salt Point State Park, near Highway #1 15 Comment
  JEPS44843  Acaena pinnatifida var. californica W. L. Jepson 1931-7-19 15933 Sonoma Bodega, Watson School 152 Comment
  UCD112508  Acaena pinnatifida var. californica P. G. Connors 1991-6-27 185 Sonoma Bodega Marine Laboratory. Bodega Head and Dunes. Near Horseshoe Cove. Comment
  CAS-BOT-BC332797  Acer macrophyllum Irja Knight; Walter Knight 1964-11-15 785 Sonoma Hood's Peak at Johnson Lake Comment
  CAS-BOT-BC332800  Acer macrophyllum Aven Nelson; Ruth A. Nelson 1933-5-15 568 Sonoma Kenwood Comment
  RSA7625  Acer macrophyllum Carl B. Wolf 1933-9-27 5513 Sonoma 2 miles southeast of Kellogg on road to Calistoga 91 Comment
  POM136900  Acer negundo subsp. californicum A. A. Heller, H. E. Brown 1902-4-15 5303 Sonoma Santa Rosa Creek Comment
  UC1171645  Acer negundo var. californicum H. S. Yates 1934-4-21 3809 Sonoma near Markham; Duncan's Mills Quad., near Markham 15 Comment
  UC635204  Acer negundo var. californicum Herbert L. Mason 1925-11-26 2494 Sonoma Monte Rio along the Russian River, Monte Rio Comment
  CAS-BOT-BC400008  Achlys triphylla Greg de Nevers; Susan Charnley 1987-3-28 8129 Sonoma Sea Ranch, along the Gualala River 20 Comment
  UCD151201  Achnatherum lemmonii James A. Neilson Jr. 1974-7-10 2818 Sonoma Mayacmas Mountains, 1/4 mile south of Geyser Rock, west of Whispering Pines, northeast Sonoma County. (Elevation estimated using Google Earth by label maker.) 1082 Comment
  CAS-BOT-BC29165  Achyrachaena mollis F. Almeda; G. DeNevers 1981-4-28 4913 Sonoma Pepperwood Ranch, vicinity of Bechtel Cabin Comment
  CAS-BOT-BC85  Acmispon aestivalis Amos Arthur Heller 1902-8-18 6051 Sonoma Santa Rosa Comment
  JEPS128216  Acmispon brachycarpus Roger Raiche 2000-5-4 057 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  OBI12964  Acmispon glaber var. glaber Robert F. Hoover 1964-9-8 9288 Sonoma Timber cove Comment
  UCD104299  Acmispon parviflorus Mary M. Hektner; Cathy Hendel, Sue Dakuzaku 1974-7-6 135 Sonoma Unit 35-B Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC29846  Adenocaulon bicolor Volney Rattan 1877-1-1 s.n. Sonoma Guerneville Comment
  UC455481  Adenocaulon bicolor I. J. Condit 1908-8-13 Sonoma Guerneville Comment
  CAS-BOT-BC139920  Adenostoma fasciculatum A. A. Heller 1902-6-23 5741 Sonoma Petrified Forest Comment
  UCD112602  Adenostoma fasciculatum Jennifer Bury; Peggy Herzog 1993-5-8 270 Sonoma Sugarloaf Ridge State Park. About 40 air miles N of San Francisco, about 11 air miles E of Santa Rosa and 2.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge and S of Red Mountain 1 mile. Near visitor center, 100 feet above parking lot, along Lower Bald Mountaing Trail. 402 Comment
  CAS-BOT-BC65530  Adiantum aleuticum Greg de Nevers 1987-4-25 8163 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC65686  Adiantum jordanii Walter Knight; Irja Knight 1963-12-27 459 Sonoma Pine Flat Rd. Comment
  SEINET11720936  Adiantum jordanii F. H. Utech, Kawano, S.; Ohara, M. 1995-1 95 -58 Sonoma 11.5 mi WNW of Lake Sonoma on Skaggs Springs Road along Skaggs Springs Creek Comment
  HSC945  Adiantum jordanii R. Spellenberg, D. Sutherland, A. Sylvester 1966-3-26 1333 Sonoma 1 mi. NW of Big Geysers Comment
  SEINET11719537  Adiantum jordanii F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -273 Sonoma ca 10 mi from Warm Springs Dam enroute to Healdsburg & US 101 on Old Stewart Point-Skaggs Springs Rd 150 Comment
  CAS-BOT-BC164059  Adiantum pedatum Peter Rubtzoff 1965-10-10 5657 Sonoma Duncans Mills Marsh. Comment
  CAS-BOT-BC29573  Agoseris apargioides var. eastwoodiae John Thomas Howell 1930-6-8 5268 Sonoma North end of Bodega Bay Comment
  CAS-BOT-BC15351  Agoseris grandiflora var. grandiflora John Thomas Howell; Catherine Best; Wilma Follette; Gordon H. True; Mary P. Wells 1981-5-14 53957 Sonoma Fairfield Osborn preserve of the Nature Conservancy, 4.5 miles NE of Penngrove on west slope of Sonoma Mountain 457 Comment
  UC891242  Agoseris grandiflora var. grandiflora Alice Eastwood 1921-5-8 10481 Sonoma Petaluma Comment
  SEINET3141171  Agoseris hirsuta L. S. Rose 1940-5-22 40367 Sonoma Sonoma 61 Comment
  UC1195633  Agrimonia gryposepala A. R. Kruckeberg 1948-6-6 1730 Sonoma w side Mt. St. Helena (bank of Briggs Creek at road crossing, Ida Clayton road); , Briggs Creek Comment
  CAS-BOT-BC176398  Agrostis Peter Rubtzoff 1964-6-24 5378 Sonoma Coleman Marsh, along Salmon Creek Comment
  CAS-BOT-BC176402  Agrostis Peter Rubtzoff 1964-5-20 5308 Sonoma Brooks Gulch Marsh. Comment
  SACT000118  Agrostis alba Herbert Mason 1946-7-4 Sonoma Pitkin Marsh, btw Santa Rosa and Forestville Comment
  UCD51841  Agrostis blasdalei Beecher Crampton 1957-7-22 4366 Sonoma above Fisherman's Bay, 0.3 mile south of Stewart's Point. Comment
  UC1146692  Agrostis exarata Freed W. Hoffman 1943-10-2 2171 Sonoma on Ross Road near Graton; North Coast Ranges Comment
  UCD36636  Agrostis exarata Beecher Crampton 1955-6-8 2830 Sonoma Sonoma County, at Napa County border, 5 miles northwest of Calistoga, along State Highway 128. Comment
  CAS-BOT-BC139550  Agrostis gigantea David L. Morgan 1955-7-18 s.n. Sonoma 5th Street, Petaluma. Comment
  UCD52554  Agrostis hallii var. pringlei P. B. Kennedy 1918-5-28 s.n. Sonoma 8 miles from Santa Rosa, Calistoga. Petrified forest road. Comment
  UC1112778  Agrostis microphylla Leo Whitney 1935-4-14 2258 b Sonoma near Occidental (Blunden's Pasture); Blunden's Pasture Comment
  UC1146632  Agrostis microphylla Freed W. Hoffman 1941-6-15 2153 Sonoma near Salt Point (Eckert Ranch); North Coast Ranges, Eckert Ranch Comment
  UCD53026  Agrostis microphylla Beecher Crampton 1959-6-16 5380 Sonoma 1 mile E of Occidental. Comment
  UCD53053  Agrostis microphylla Freed W. Hoffman 1941-6-20 2088 Sonoma Dutch Hill Creek. Comment
  CAS-BOT-BC139117  Agrostis oregonensis Peter Rubtzoff 1951-8-5 605 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh. Comment
  CAS-BOT-BC138917  Agrostis pallens G. DeNevers 1981-6-15 1519 Sonoma Pepperwood Ranch. Lower Pepperwood entrance. Comment
  UCD53519  Agrostis stolonifera P. B. Kennedy 1917-8-27 s.n. Sonoma Del Mar. Comment
  SEINET4342106  Agrostis stolonifera J. B. Davy 1899-7-22 6003 Sonoma Guerneville Comment
  UCD53477  Agrostis stolonifera var. maritima P. B. Kennedy 1916-7-17 325 Sonoma Del Mar. Comment
  RSA244322  Aira caryophyllea Larry E. DeBuhr 1973-5-18 1098 Sonoma Pitkin-Jones Tree Farm. On Vine Hill Rd 1.3 miles N of jct with Gurneyville Rd. W of Santa Rosa. Comment
  CAS-BOT-BC138390  Aira caryophyllea var. capillaris L. R. Abrams 1918-4-27 6903 Sonoma Independence School near Healdsburg. Comment
  CAS-BOT-BC138213  Aira caryophyllea var. caryophyllea Peter Rubtzoff 1951-6-16 230 Sonoma Pitkin Marsh near Forestville. Lower part of the Upper Marsh. Comment
  CAS-BOT-BC138207  Aira caryophyllea var. caryophyllea John H. Thomas 1976-6-16 18338 Sonoma Southern part of Sea Ranch, northwestern part of county, about 7 miles south of Gualala. 30 Comment
  CAS-BOT-BC138214  Aira caryophyllea var. caryophyllea John H. Thomas 1966-5-8 11604 Sonoma 1.4 miles west of Napa-Sonoma county line. Along road between Calistoga and Santa Rosa. Comment
  CAS-BOT-BC138215  Aira caryophyllea var. caryophyllea Peter Rubtzoff 1952-6-10 1213 Sonoma Northeast slopes of Fitch Mountain near Healdsburg. Comment
  UCD55801  Aira praecox Beecher Crampton 1957-7-11 4353 Sonoma above Blind Beach, just south of Goat Rock, Sonoma Coast State Park, ca. 9 miles north of Salmon Creek. Comment
  CAS-BOT-BC166765  Alisma lanceolatum Peter Rubtzoff 1966-7-4 s.n. Sonoma Laguna de Santa Rosa northeast of Graton, at end of Piner Road. Comment
  UCD137909  Alisma lanceolatum Ellen Dean 2006-6-28 3179 Sonoma Town of Kenwood. East side of Hwy. 12. Kunde Vineyards. In southeast part of vineyard where a new reservoir is planned 169 Comment
  UCD137911  Alisma lanceolatum Ellen Dean 2006-6-28 3179 Sonoma Town of Kenwood. East side of Hwy. 12. Kunde Vineyards. In southeast part of vineyard where a new reservoir is planned 169 Comment
  CAS-BOT-BC445468  Alisma triviale Peter Rubtzoff 1963-7-14 5199 Sonoma Laguna de Santa Rosa east of Graton. Comment
  RSA0057954  Allium amplectens Greg de Nevers 1998-5-19 11252 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Mark West Creek at Franz Valley Road. 100 Comment
  CAS-BOT-BC466698  Allium cepa Peter Rubtzoff 1963-8-17 5226 Sonoma Near Petaluma River, just east of Petaluma Comment
  CAS-BOT-BC474312  Allium unifolium H. C. Cantelow 1934-4-29 492 Sonoma Dry Creek nr Healdsburg Comment
  UCD138618  Allium vineale G. D. Barbe 1974-4-29 1782 Sonoma 1 mile south of Washington School Road on Asti Road, Asti. Comment
  CAS-BOT-BC251179  Alnus Peter Rubtzoff 1969-7-21 6118 Sonoma Duncan Mills Marsh. Comment
  CAS-BOT-BC169653  Alnus rhombifolia Peter Rubtzoff 1960-9-14 4527 Sonoma Laguna de Santa Rosa E of Graton (betw.Occidental and Guerneville roads) Comment
  CAS-BOT-BC169654  Alnus rhombifolia Peter Rubtzoff 1960-6-10 4497 Sonoma Fife Creek Marsh Comment
  CAS-BOT-BC251207  Alnus rhombifolia Peter Rubtzoff 1960-6-11 4504 Sonoma Laguna de Santa Rosa area, east of Graton, between Occidental and Guerneville roads. Comment
  RSA800596  Alnus rhombifolia Peter Rubtzoff 1960-9-14 4550 Sonoma Laguna de Santa Rosa, E of Graton, (between Occidental and Guerneville road) Comment
  CAS-BOT-BC169370  Alnus rubra Mary P. Wells 1984-8-9 448 Sonoma Public path through golf course to the sea, The Sea Ranch Comment
  CAS-BOT-BC138058  Alopecurus aequalis var. sonomensis Peter Rubtzoff 1955-5-14 1835 Sonoma Ross Marsh. Comment
  UCD55893  Alopecurus aequalis var. sonomensis H. S. Yates 1936-5-16 5603 Sonoma 2 miles SE of Forestville. 30 Comment
  SEINET10511202  Alopecurus saccatus A. Arthur Heller 1902-6-10 Heller 5685 Sonoma Santa Rosa. Comment
  RSA105447  Amaranthus powellii Leo Koch 1938-10-20 324 Sonoma S.R.J.C. campus field along Highway 101, Santa Rosa Comment
  UC29417  Ambrosia psilostachya J. Burtt Davy Oct 1 1896-Jan 1 1900 2852 Sonoma Sonoma Comment
Read comments
Nov 13 2016
  JEPS87225  Amorpha californica var. napensis Jack and Betty Guggolz 1992-5-9 1282 Sonoma 1/2 mi nw Buzzard Peak (ne of Santa Rosa) 271 Comment
  RSA0089978  Amsinckia helleri J. T. Howell 1948-4-18 24208 Sonoma Hills east of Agua Caliente. Comment
  SEINET7067241  Amsinckia lycopsoides A. G. Vestal 1947-5-13 s.n. Sonoma Bodega Head. Coordinate datum: NAD27. Comment
  CAS-BOT-BC26970  Amsinckia viridifolia Alice Eastwood 1921-5-8 10484 Sonoma Petaluma Comment
  UCD56034  Andropogon glomeratus Freed W. Hoffman 1942-6-13 2046 Sonoma North Coast Ranges, around Hot Springs, the Geyers. Comment
  CAS-BOT-BC137818  Andropogon glomeratus var. pumilus Walter Knight; Irja Knight 1968-1-1 2265 Sonoma Across footbridge from old bathouse on Sulphur Creek. Geysers Resort. Comment
  UCD56062  Andropogon glomeratus var. pumilus Virginia Bufford 1936-8-18 413 Sonoma Pitkins Marsh, Vine Hill District. Comment
  JEPS74598  Andropogon glomeratus var. scabriglumis L. R. Heckard 1974-8-21 3825 B Sonoma s.-central part near end of Templeton rd. Pitkin Marsh Comment
  UC70435  Anemone oregana Milo S. Baker 1903-3-19 Sonoma Sonoma; Creek canyon Comment
  RSA177897  Angelica californica R. F. Thorne 1965-4-20 34354 Sonoma On Cavedale Road, 0.5 miles up from State Hwy 12, ca. 4 miles N of Sonoma. 244 Comment
  RSA296042  Angelica californica J. M. DiTomaso 1980-6-13 1599 Sonoma Trinity Rd. between Glen Ellen and Oakville 1494 Comment
  CAS-BOT-BC221435  Angelica hendersonii David D. Keck; J. Clausen 1935-6-15 3373 Sonoma 1 mile north of Salmon Creek Comment
  UC174199  Angelica tomentosa Katharine Brandegee 1908-6-28 Sonoma Glen Ellen Comment
  JEPS78467  Anisocarpus madioides Edward Lee 1936-6-7 2204 Sonoma McLaren Trail Bohemian Grove Comment
  UCD128899  Anisocarpus madioides J. M. Tucker 1951-6-26 2135 Sonoma near summit of range, road from Glen Ellen to Oakville. Comment
  CAS-BOT-BC173816  Anthemis cotula Peter Rubtzoff 1969-8-14 6133 Sonoma Along Salmon Creek, ca. 0.5 miles upstream from Highway 1. Comment
  RSA187522  Anthemis cotula John H. Thomas 1966-3-18 11481 Sonoma Edge of vineyard at Italian Swiss Colony vineyard at Asti, very, very common in vineyards and in disturbed habitats, Sonoma County Comment
  RSA259578  Anthemis fuscata Thomas W. Nelson, James Nelson 1975-3-25 1751 Sonoma Asti, Growing as a weed in cultivated areas, vinyards Comment
  CAS-BOT-BC137770  Anthoxanthum aristatum Alice Eastwood; John Thomas Howell 1936-5-19 2506 Sonoma 2 miles north of Windsor. Comment
  RSA26260  Anthoxanthum aristatum Alice Eastwood, J. T. Howell 1936-5-19 2506 Sonoma 2 miles north of Windsor Comment
  SD192846  Anthoxanthum occidentale John A. Churchill 1975-5-1 745146 Sonoma On west side of Camp Meeker. Comment
  UCD56259  Anthoxanthum odoratum Leo Koch 1940-4-22 841 Sonoma North Bay Counties, along Highway 101, north of Windsor. Comment
  UCD56277  Anthoxanthum odoratum Beecher Crampton 1957-7-22 4362 Sonoma 8 miles north of Stewart's Point, Bishop Pine grove along State Hwy. 1. Comment
  RSA496671  Antirrhinum cornutum L. F. LaPre 1986-6-5 s.n. Sonoma Dorr Place, 4 miles up a private road from Manning's Flats in Austin Creek State Recreation Area, 6 mi. N. of Cazadero on upper Austin Creek. Comment
  CDA41218  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Mike Mason 1977-7-11 PDR# 371779 Sonoma River Road near Guerneville. 0 Comment
  RSA0077989  Apiaceae B. A. Stein 1981-3-7 449 Sonoma Harrison Grade Rd. 243 Comment
  UCR255744  Apiastrum angustifolium Greg de Nevers 1997-4-16 10934 Sonoma North Coast Range, Cavedale Road 152 Comment
  UCD126297  Apiastrum angustifolium Frederica Bowcutt 1996-5-19 2126 a Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles N of Kenwood, and 18 air miles NW of Napa. Adobe Canyon firebreak (narrow) btw. lower Bald Mtn. and Bald Mt. Trail. 487 Comment
  CAS-BOT-BC394996  Aquilegia formosa A. A. Heller; H. E. Brown 1902-4-11 5274 Sonoma Bodega Bay Comment
  CAS-BOT-BC128619  Arbutus menziesii Walter Knight; Irja Knight 1964-11-15 790 Sonoma Hood's Peak near Johnson Lake Comment
  POM367169  Arbutus menziesii Christopher Davidson 1977-6-20 6014 Sonoma Dry Cr. Rd. 8.6 mi. W of Geyserville. 91 Comment
  SEINET11996993  Arbutus menziesii F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -244 Sonoma ca 10 mi from Warm Springs Dam enroute to Healdsburg & US 101 on Old Stewart Point-Skaggs Springs Rd 150 Comment
  SEINET7258086  Arbutus menziesii L. Fallon 1939-1-2 s.n. Sonoma 15 miles west of Santa Rosa Comment
  CAS-BOT-BC56911  Arctostaphylos John Thomas Howell 1934-3-3 11747 Sonoma Between Fort Ross and Stewart's Point Comment
  RSA629203  Arctostaphylos Jon E. Keeley 1993-9-11 24780 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA629208  Arctostaphylos Jon E. Keeley 1993-9-11 24792 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA629214  Arctostaphylos Jon E. Keeley 1993-9-11 24789 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA629215  Arctostaphylos Jon E. Keeley 1993-9-11 24775 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  UC549554  Arctostaphylos J. E. Adams 1934-3-28 718 Sonoma near Santa Rosa; Vine Hill Comment
  CAS-BOT-BC24084  Arctostaphylos bakeri B. A. Stein 1981-3-7 447 Sonoma Harrison Grade Rd. c. 1/2 mi. east of Stoez Rd. 243 Comment
  CAS-BOT-BC25325  Arctostaphylos bakeri J. Sigg; Elizabeth McClintock; Walter Knight; Irja Knight 1981-3-4 4101 Sonoma Originally collected from near Occidental Comment
  CAS-BOT-BC27176  Arctostaphylos bakeri John Thomas Howell 1933-4-2 10955 Sonoma 2 miles E of Occidental Comment
  CHSC67659  Arctostaphylos bakeri James D. Jokerst 1989-4-13 3095 Sonoma NE side of Hawson Grade Rd 0.4 mi N of its junction with Stoetz Rd., ca. 1 mi NE of Camp Meeker, N of Occidental, W of Santa Rosa. 228 Comment
  UC1093999  Arctostaphylos bakeri Lewis S. Rose 1951-3-21 55031 Sonoma 2 mi ne Occidental (type locality) 213 Comment
  UC1120874  Arctostaphylos bakeri C. M. Belshaw 1936-3-7 1553 Sonoma 1 mi ne Occidental; Sebastopol Quadrangle Comment
  UC1120875  Arctostaphylos bakeri C. M. Belshaw 1936-3-7 1552 Sonoma 1 mi ne Occidental; Sebastopol Quadrangle Comment
  RSA622702  Arctostaphylos bakeri subsp. bakeri Jon E. Keeley, Melanie Baer-Keeley 1993-9-10 24701 Sonoma Along Bohemian Highway, 3.3 km north of Camp Meeker, between Occidental and Monte Rio. 90 Comment
  SBBG28818  Arctostaphylos bakeri subsp. bakeri L. S. Rose 1934-2-22 34032 Sonoma 2 mi E of Occidental Comment
  SBBG83949  Arctostaphylos bakeri subsp. sublaevis R. Raiche 1982-4-10 20301 b Sonoma King Ridge Rd (4.5 mi N of jct with Ft. Ross Rd, about .7 mi in from King Ridge Rd on Old Layton Mine Rd (on topo map area is called "The Cedars."); N of Cazadero Comment
Read comments
Oct 17 2013
  RSA622721  Arctostaphylos canescens Jon E. Keeley 1993-9-11 24770 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  UCSB4717  Arctostaphylos canescens Keator, Glenn 1959-4-2 Sonoma Mt. St. Helena, 9.1 miles north of Calistoga 762 Comment
  RSA44383  Arctostaphylos canescens subsp. canescens L. S. Rose 1949-3-27 49017 Sonoma 3 mi. east of Beltane. 457 Comment
  CAS-BOT-BC23889  Arctostaphylos canescens subsp. sonomensis John Thomas Howell 1933-4-2 10943 Sonoma Rincon Ridge near Santa Rosa Comment
  LA88623  Arctostaphylos canescens subsp. sonomensis Robert F. Thorne; 1965-4-20 34387 Sonoma Rincon Ridge, Robert Sone's place on Rock Ridge Lane - Montecito Ave. Santa Rosa 106 Comment
  UC549709  Arctostaphylos canescens subsp. sonomensis J. E. Adams 1935-3-1 1024 Sonoma e Sta. Rosa; Rincon Ridge Comment
  UC909881  Arctostaphylos canescens subsp. sonomensis J. E. Adams 1935-3-1 1025 Sonoma e Sta. Rosa; Rincon Ridge Comment
  UC571194  Arctostaphylos columbiana H. L. Mason 1928-4-8 4290 Sonoma Fort Ross Comment
  CAS-BOT-BC23603  Arctostaphylos columbiana John Thomas Howell 1934-3-3 11743 Sonoma Between Fort Ross and Stewart's Point Comment
  CAS-BOT-BC23638  Arctostaphylos columbiana Mary P. Wells 1985-10-4 669 a Sonoma About 1 mile south of Gualala River Comment
  CAS-BOT-BC24977  Arctostaphylos densiflora Walter Knight; Irja Knight 1980-12-23 3858 Sonoma From California Native Plant Society's Preserve on Vine Hill School Road. Near Graton. Comment
  CAS-BOT-BC24980  Arctostaphylos densiflora Walter Knight; Irja Knight; Elizabeth McClintock; J. Sigg 1981-3-25 4035 Sonoma Originally collected in Vine Hill District, near Sebastopol. Comment
  CAS-BOT-BC24986  Arctostaphylos densiflora John Thomas Howell 1931-3-14 5770 Sonoma Vine Hill District, 10 mi. W of Santa Rosa. Comment
  CAS-BOT-BC25014  Arctostaphylos densiflora Peter Rubtzoff 1952-3-22 870 Sonoma Dry, open area separating the Western branch of the Upper Marsh from the Eastern. Comment
  CAS-BOT-BC27250  Arctostaphylos densiflora Milo Samuel Baker 1928-4-18 5045 Sonoma Near Vine Hill School House Comment
  OBI14750  Arctostaphylos densiflora H. E. McMinn 1936-4-5 4412 Sonoma Just W of Vine HIll School, 16 mi W of Santa Rosa Comment
  UC1120148  Arctostaphylos densiflora C. M. Belshaw 1936-3-7 1567 Sonoma Vine Hill Sebastopol Quadrangle Comment
  UC909866  Arctostaphylos densiflora J. E. Adams 1934-3-28 713 Sonoma Vine Hill School Sta. Rosa Comment
  CDA38591  Arctostaphylos densiflora T. C. Fuller 1958-5-24 3997 Sonoma Vinehill District. 0 Comment
  SEINET11987220  Arctostaphylos densiflora W. Knight, Knight, I. 1980-1 3858 Sonoma California Native Plant Society preserve on Vine Hill School Rd, near Graton Comment
  CDA11144  Arctostaphylos glandulosa G. F. Hrusa, G. L. Stebbins, D. Kelch 1993-11-22 11555 Sonoma North Coast Biodiversity Arena; First (unnamed) tributary of Sulphur Creek, immediately after Geysers Road crosses creek. Adjacent to old homestead (on 7.5' quad). Comment
  UCD160019  Arctostaphylos glandulosa subsp. cushingiana James A. Neilson Jr. 1975-1-24 3159 Sonoma Mayacmas Mountains; Dominichelli Ranch # 1. (Exact location unknown. Elevation and coordinates estimated by label maker.) 731 Comment
  RSA631181  Arctostaphylos glandulosa subsp. cushingiana Jon E. Keeley 1993-9-11 24722 Sonoma Chaparral on south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA631192  Arctostaphylos glandulosa subsp. cushingiana Jon E. Keeley 1993-9-11 24733 Sonoma Chaparral on south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  CAS-BOT-BC24725  Arctostaphylos glandulosa subsp. glandulosa John Thomas Howell 1931-3-14 5763 Sonoma Raven Ridge near Santa Rosa. Comment
  LA42174  Arctostaphylos hispidula John Thomas Howell; 1933-4-2 10956 Sonoma 2 mi. E of Occidental Comment
  CAS-BOT-BC38994  Arctostaphylos manzanita Roger Raiche; Stephen W. Edwards 1983-6-9 101 Sonoma The Cedars. On serpentinite, east of ridge on Twitchell property near Cazadero. 274 Comment
  UCD52228  Arctostaphylos manzanita Roman Gankin; W. R. Hildreth 1967-10-3 1069 Sonoma Vine Hill School Road; ca. 1/2 mile east of Vine Hill Road. Comment
  UCD52230  Arctostaphylos manzanita Roman Gankin; W. R. Hildreth 1967-10-3 1068 Sonoma Vine Hill School Road; ca. 1/2 mile east of Vine Hill Road. Comment
  SEINET11990968  Arctostaphylos manzanita Unknown 1983-1 30499 I Sonoma nr entrance to public landfill site, road to Annapolis, 1.2 mi E of intersection to Soda Springs Rd Comment
  SEINET11990970  Arctostaphylos manzanita Unknown 1983-1 30491 I Sonoma near confluence of Thompson Creek & East Austin Creek, East Austin Creek St. Rec. Area 91 Comment
  SEINET11990971  Arctostaphylos manzanita Unknown 1983-1 30491 C Sonoma near Manning's Flat Campground, Austin Creek State Rec. Area 122 Comment
  SEINET11990994  Arctostaphylos manzanita R. Raiche, Edwards, S. W. 1983-1 100 Sonoma The Cedars, W of ridge on Twitchell property 274 Comment
  SEINET11993704  Arctostaphylos manzanita subsp. bakeri Unknown 1985-1 50899 Sonoma NE end of town of Healdsburg on Reservoir Hill 122 Comment
  SEINET11994915  Arctostaphylos manzanita subsp. glaucescens W. Knight, Knight, I. 1987-1 6083 Sonoma Pepperwood Preserve, Garrison Canyon 122 Comment
  SBBG60025  Arctostaphylos manzanita subsp. manzanita A. A. Beetle 1940-2-18 1573 Sonoma Pitkin Ranch, 10 mi W of Santa Rosa Comment
  UC205096  Arctostaphylos manzanita subsp. manzanita Katharine Brandegee Sonoma Mt. St. Helena Comment
  UC1388367  Arctostaphylos manzanita subsp. manzanita Freed W. Hoffman 1947-4-7 1879 Sonoma between Healdsburg Calistoga; North Coast Ranges Comment
  CAS-BOT-BC43877  Arctostaphylos stanfordiana Walter Knight; Irja Knight 1987-2-5 6081 Sonoma Devil's Kitchen in vicinity of Pepperwood 243 Comment
  CAS-BOT-BC43880  Arctostaphylos stanfordiana John Thomas Howell 1933-4-2 10951 Sonoma 8 miles west of Santa Rosa Comment
  JEPS83501  Arctostaphylos stanfordiana Jack and Betty Guggolz 1986-3-3 850 Sonoma above pond (on n side of Chamise Ridge Rd, off West Dry Creek Rd, w of Geyserville) Comment
  JEPS98851  Arctostaphylos stanfordiana James B. Roof 1963-2-28 Sonoma Mt. St. Helena 868 Comment
  RSA380886  Arctostaphylos stanfordiana Roger Raiche 1982-4-10 RR- 20301 G Sonoma King Ridge Rd. (4.5 mi. n. of jct. with Ft. Ross Rd.) about .7 mi. in from King Ridge Rd. on Old Layton Mine Road. On topo map area is called The Cedars. North of Cazadero. Comment
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Oct 17 2013
  RSA636810  Arctostaphylos stanfordiana Jon E. Keeley 1993-9-11 24754 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA636813  Arctostaphylos stanfordiana Jon E. Keeley 1993-9-11 24751 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  UC1388317  Arctostaphylos stanfordiana Freed W. Hoffman 1947-4-13 782 Sonoma near Guerneville; North Coast Ranges, Gilliam Creek, Magnesite Lodge Comment
  UC1602064  Arctostaphylos stanfordiana Katharine Brandegee Sonoma Mt. St. Helena Comment
  SEINET11989086  Arctostaphylos stanfordiana Unknown 1982-1 20301 D Sonoma King Ridge Rd (4.5 mi N of jct Ft Ross Rd) about 0.7 mi in from King Ridge Rd on Old Layton Mine Rd Comment
  SEINET7267257  Arctostaphylos stanfordiana L. Fallon 1939-1-6 s.n. Sonoma 1 mile north of Santa Rosa Comment
  UC725948  Arctostaphylos stanfordiana A. A. Heller 1942-3-15 16394 Sonoma just ne Santa Rosa; Rincon Ridge Comment
  JEPS95237  Arctostaphylos stanfordiana subsp. decumbens Stephen W. Edwards 1990-12-10 Sonoma Rincon Ridge, summit Comment
  JEPS98846  Arctostaphylos stanfordiana subsp. decumbens unknown 1967-3-19 Sonoma W of Healdsburg (on Dorman Canyon Rd); Dry Creek Watershed Comment
  RSA177970  Arctostaphylos stanfordiana subsp. stanfordiana R. F. Thorne 1965-4-20 34344 Sonoma Top of Parker Hill (N end of Parker Hill Rd.) ca. 3 mi. No. of Santa Rosa. 244 Comment
  RSA201846  Arctostaphylos stanfordiana subsp. stanfordiana Roman Gankin 1966-3-3 687 Sonoma 3.1 miles east of junction with State Highway 12. Comment
  UCD52200  Arctostaphylos viscida A. E. Wieslander 1938-10-29 848 Sonoma 3 miles E. of Mt. St. Helena (St. Helena Creek). 457 Comment
  UCR44918  Arenaria douglasii L. F. LaPre 1986-6-5 s.n. Sonoma Dorr Place, 4 mi up a private road from Mannings Flats in Austin Creek State Recreation Area, 6 mi north of Cazadero on upper Austin Creek 207 Comment
  UCR44931  Arenaria douglasii L. F. LaPre 1986-6-2 s.n. Sonoma Red Slide, serpentine rockslide along upper East Austin Creek, 5 mi north of Cazadero, 3 mi up a private road from Mannings Flats, Austin Creek State Recreation Area 305 Comment
  CAS-BOT-BC400487  Aristolochia californica Peter Rubtzoff 1987-3-15 9756 Sonoma Russian River at Forest Hills, 5.5 mi. east of Guerneville. Off Summerhome Park Road 0.2 mi. from (west of) Forest Hills Road Comment
  UCSB50184  Armeria maritima subsp. californica Gray, John 1976-5-1 Sonoma On North Salmon Creek Beach near Highway 1; T 6N, R 11W 18 Comment
  UCR255653  Arnica discoidea Greg de Nevers 1997-4-24 10956 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, Santa Rosa 400 Comment
  CAS-BOT-BC90492  Artemisia douglasiana Robert M. King 1980-7-8 8414 Sonoma 5 miles generally southwest of Santa Rosa Comment
  CAS-BOT-BC90862  Artemisia pycnocephala Alice Eastwood 1915-6-29 4801 Sonoma Bodega Point Comment
  UCD129343  Artemisia pycnocephala D. R. Miller; D. S. Horning 1967-1-23 s.n. Sonoma Goat Rock Beach (near Jenner). Comment
  CAS-BOT-BC97233  Artemisia suksdorfii J. Clausen 1939-7-20 1715 Sonoma along road just north of Jenner, towards Fort Ross Comment
  RSA552337  Artemisia suksdorfii L. M. Shultz, John Shultz 1986-9-20 10233 Sonoma 1 mile north of Jenner along Pacific Coast Highway 6 Comment
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May 7 2016
  JEPS49956  Asclepias fascicularis W. L. Jepson 1921-9-12 9487 Sonoma Alexander Valley 45 Comment
  RSA264768  Asclepias fascicularis Peter Rubtzoff 1975-8-15 8322 Sonoma Laguna, Chileno Valley. Comment
  SEINET10742133  Asclepias solanoana Helen K. Sharsmith 1952-6-18 Sharsmith 4128 Sonoma Near junction of Socrates Mine road with Pine Flat-Middletown road, Mayacamas Mountains 975 Comment
  CAS-BOT-BC68782  Aspidotis densa Donald Branscomb; Harry K. Roberts 1958-6-14 s.n. Sonoma Serpentine hills near Guerneville Comment
  SEINET11718421  Aspidotis densa F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -244 Sonoma end of Stoetz Road 200 Comment
  SACT000181  Aspris capillaris M. Wiesendanger 1927-5-5 Sonoma Comment
  CAS-BOT-BC157676  Asteraceae Peter Rubtzoff 1969-5-11 6044 Sonoma Laguna de Santa Rosa, northeast of Graton, at end of Piner Road. Comment
  CAS-BOT-BC361328  Asteraceae Greg de Nevers 1997-8-17 11080 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa Oak Hill Ranch 400 Comment
  CAS-BOT-BC376327  Asteraceae Greg de Nevers 1994-4-1 10517 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Cresta horse pasture 400 Comment
  CAS-BOT-BC180464  Astragalus breweri Robert F. Hoover 1939-4-18 4038 Sonoma Occidental Comment
  POM253202  Astragalus breweri A. A. Heller, H. E. Brown 1902-4-4 7747 Sonoma Hills east of Santa Rosa Comment
  UC574627  Astragalus breweri W. H. Brewer 979 Sonoma Fields in Sonoma Valley Comment
  UC82559  Astragalus clevelandii Edward Lee Greene 1883-8-22 Sonoma n side Mt. St. Helena Comment
  CAS-BOT-BC186824  Astragalus gambelianus Greg de Nevers 1995-6-6 10750 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road 487 Comment
  CAS-BOT-BC186825  Astragalus gambelianus Greg de Nevers 1993-5-30 10464 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Piny Canyon 457 Comment
  CAS-BOT-BC193345  Astragalus tener var. tener J. W. Congdon 1880-3-1 s.n. Sonoma Petaluma Comment
  UC71465  Athyrium filix-femina var. cyclosorum J. Burtt Davy 1896-7-22 4145 Sonoma Russian River Comment
  UC42234  Athyrium filix-femina var. cyclosorum F. T. Bioletti 1892-1 Sonoma Gualala River Comment
  RSA0018576  Atriplex Peter Rubtzoff 1958-9-20 3990 Sonoma Laguna de Santa Rosa, north of Sebastopol (near Occidental Road). Comment
  UCD97622  Atriplex prostrata Mary M. Hektner 1975-8-14 228 Sonoma on Shell Beach, Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  UCR248352  Atriplex prostrata Peter Rubtzoff 1958-9-20 3996 Sonoma Laguna de Santa Rosa, northeast of Gratton (0.5 mi. north of Guerneville Road) 27 Comment
  UC1925873  Atriplex triangularis Ethel Crum 1930-10-5 871 Sonoma Petaluma Marshes, Sonoma County to Rio Vista, Solano County. Comment
  CAS-BOT-BC146137  Avena barbata A. A. Heller 1902-3-26 5157 Sonoma Santa Rosa Creek, east of Santa Rosa. Comment
  UCD56210  Avena barbata Beecher Crampton 1956-3-13 3227 Sonoma Along U.S. Hwy. 101. Italian-Swiss Colony Winery Grape Vineyard area. Asti. Comment
  CAS-BOT-BC145720  Avena fatua David L. Morgan 1956-5-11 s.n. Sonoma 311 Mountain View Ave. Petaluma. Comment
  RSA800041  Avena fatua Peter Rubtzoff 1975-6-4 8040 Sonoma U.C. Blodgett Forest Research Station: County Road, 0.6 mi E of Main Station entrance. 1351 Comment
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Nov 3 2014
  CAS-BOT-BC68339  Azolla filiculoides Peter Rubtzoff 1962-10-9 5113 Sonoma Lower Salmon Creek Marsh Comment
  CAS-BOT-BC98601  Baccharis douglasii Catherine Best 1983-10-12 904 Sonoma Growing along the creek near Occidental Road at the north edge of Occidental Comment
  UCR30559  Baccharis glutinosa John C. Roos 1948-8-28 3959 Sonoma North Coast Ranges, near Healdsburg 31 Comment
  UC527412  Baccharis pilularis Carl B. Wolf and E. R. Johnson 1934-10-13 Sonoma 2 4/10 mi n of mouth of Russian River 60 Comment
  SEINET11839688  Baccharis pilularis subsp. consanguinea W. Knight, Knight, I. 1981-1 3966 Sonoma 2.3 mi up Cavedale Rd from jct of CA 12 Comment
  UC34306  Baccharis salicifolia subsp. salicifolia W. C. Blasdale Sonoma Santa Rosa Comment
  UCR254890  Barbarea vulgaris Peter Rubtzoff 1989-6-10 10006 Sonoma Along Russian River, c. 6 miles east of Guerneville, at 9850 River Road 14 Comment
  CAS-BOT-BC320536  Beckmannia Peter Rubtzoff 1970-6-14 6263 Sonoma Marsh on River Road, ca. 3 miles west of Fulton. Comment
  CAS-BOT-BC145835  Beckmannia syzigachne A. A. Heller 1902-6-7 5650 Sonoma Bennet Valley, southeast of Santa Rosa. Comment
  CAS-BOT-BC145842  Beckmannia syzigachne Peter Rubtzoff 1955-5-14 1834 Sonoma Ross Marsh. Comment
  SEINET179633  Beckmannia syzigachne H. P. Bracelin 1930-7-27 20 Sonoma 1 mi N of Fort Ross Comment
  UCD56805  Beckmannia syzigachne Lloyd M. Harwood 1972-5-25 s.n. Sonoma Near Petaluma. Comment
  CAS-BOT-BC106394  Bellis perennis George Syme 1917-4-25 s.n. Sonoma Guerneville Comment
  OBI35842  Bellis perennis David J. Keil 1983-6-29 17206 Sonoma Ca 10 mi SE of Ft Ross along Hwy 1 Comment
  CAS-BOT-BC75775  Berberis pinnata A. A. Heller; H. E. Brown 1902-4-11 5257 Sonoma Bodega Bay. Comment
  RSA0015636  Bidens frondosa Peter Rubtzoff 1956-9-15 2905 Sonoma Atascadero Creek Marsh. Comment
  SEINET11842881  Bidens frondosa W. Knight, Knight, I. 1984-1 5291 Sonoma Spring Lake, Santa Rosa Comment
  CAS-BOT-BC290648  Bidens laevis Peter Rubtzoff 1955-11-27 2170 Sonoma Bodega Head Marsh. Comment
  CAS-BOT-BC290563  Bidens laevis Peter Rubtzoff 1963-11-11 5301 Sonoma Pitkin Marsh, near Forestville. Comment
  CAS-BOT-BC290564  Bidens laevis Peter Rubtzoff 1967-8-30 5874 Sonoma Pitkin Marsh, near Forestville. Southern part of the Upper Marsh. Comment
  CAS-BOT-BC100247  Blennosperma bakeri Peter H. Raven 1963-4-28 18251 Sonoma 4.7 miles south of El Verano on Arnold Drive Comment
  HSC5205  Blennosperma nanum var. nanum M. S. Baker 1898-1 724 Sonoma NE Santa Rosa Comment
  CAS-BOT-BC154868  Boisduvalia Peter Rubtzoff 1974-5-26 7491 Sonoma 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  RSA790899  Boisduvalia Peter Rubtzoff 1974-5-26 7491 Sonoma 1.4 mi from Hwy 116 and 0.6 mi from Llano Road. Comment
  CAS-BOT-BC154957  Boisduvalia densiflora Peter Rubtzoff 1962-6-19 4919 Sonoma Occidental Marsh Comment
  CAS-BOT-BC154970  Boisduvalia densiflora Peter Rubtzoff 1955-8-27 2094 Sonoma Bennett Mtn. Lake. Comment
  POM32026  Boisduvalia densiflora var. densiflora A. A. Heller 1902-6-4 5640 Sonoma Santa Rosa. Comment
  CAS-BOT-BC173611  Boisduvalia glabella Peter Rubtzoff 1956-9-14 2875 Sonoma Vacation Beach, near Guerneville. Russian River. Comment
  RSA791564  Boisduvalia glabella Peter Rubtzoff 1960-6-25 4515 Sonoma Sonoma County Marshes: Laguna de Santa Rosa, E of Graton, between Occidental and Guerneville Roads. Comment
  RSA791565  Boisduvalia glabella Peter Rubtzoff 1961-6-7 4613 Sonoma Laguna de Santa Rosa, about 1 mi SE of Trenton. Comment
  SEINET8345733  Bolboschoenus fluviatilis Peter Rubtzoff 1955-8-7 2033 Sonoma [Guermeville learsh]. Comment
  CAS-BOT-BC75483  Bolboschoenus glaucus Mary P. Wells 1987-5-20 s.n. Sonoma 0.6 mile north of Gravenstein Highway on Llano Road - under bridge. Comment
  CAS-BOT-BC75486  Bolboschoenus glaucus John Thomas Howell 1987-5-17 s.n. Sonoma Llano Road Marsh. Comment
  CAS-BOT-BC322143  Bolboschoenus maritimus Peter Rubtzoff 1972-8-26 6859 Sonoma Laguna, Chileno Valley. Comment
  CAS-BOT-BC322144  Bolboschoenus maritimus Peter Rubtzoff 1955-8-20 2083 Sonoma Bodega Harbor Marsh. Comment
  RSA0034188  Bolboschoenus maritimus Peter Rubtzoff 1972-8-26 6859 Sonoma Laguna, Chileno Valley. Comment
  CAS-BOT-BC371427  Boykinia occidentalis Greg de Nevers 1996-6-10 10830 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa Mark West Creek below Leslie Creek 400 Comment
  SEINET10480785  Brassica nigra David B. Dunn, Melvin L. Conrad; Douglas G. LeDoux 1973-6-9 Dunn 20710 Sonoma Collected 5.3 mi e of the jct of hwy 101 and hwy 116 on 116. Rolling hills of grasses. Along the roadside in clay banks. Comment
  SEINET11195111  Brassica rapa R. R. Halse 1987-2-22 3374 Sonoma Sonoma Valley, along State Hwy 121, 0.4 mile E of its junction with State Hwy 116 at Big Bend. 6 Comment
  HSC6588  Brassica rapa F. Demostene 1966-4-1 9 Sonoma 2 mi. E of Healdsburg Comment
  CAS-BOT-BC182742  Brassicaceae Peter Rubtzoff 1959-6-20 4187 Sonoma Willow Creek Marsh Comment
  UC1299277  Brickellia californica Freed W. Hoffman 1946-8-16 786 Sonoma 1 mi below Guerneville (gravel bar along Russian River, North Coast Ranges); North Coast Ranges, Russian River Comment
  CHSC8187  Briza maxima K. Henegar 1969-5-10 42 Sonoma Near Salmon Creek, 1/2 m n of Bodega Bay. Comment
  RSA239698  Briza maxima Larry E. DeBuhr, Gary D. Wallace 1973-5-18 1096 Sonoma Pitkin-Jones Tree Farm. On Vine Hill Rd 1.3 miles N of jct with Gurneyville Rd. W of Santa Rosa. Comment
  SBBG21223  Briza maxima B. Crampton 1954-4-26 Sonoma 2 mi N of Geyserville, US Hwy 101 Comment
  UCD57133  Briza maxima B. Crampton 1954-4-26 1792 Sonoma U. S. Hwy. 101. 2 miles north of Geyserville. Comment
  UCD57155  Briza maxima B. Crampton 1954-4-26 1790 Sonoma Hwy. 128. About 9 miles SE Geyserville. Comment
  UCD57364  Briza maxima Beecher Crampton 1959-6-16 5371 Sonoma 0.2 miles E of Occidental. Comment
  UCR222353  Briza maxima George K. Helmkamp, E. A. Helmkamp 2010-6-4 16231 Sonoma North Coast Ranges, Mark West Springs Road (Porter Creek Rd.), 6.4 rd. miles east of its junction with US-101, 5.9 air mi. east (88 deg. ) of Windsor 155 Comment
  UCD57371  Briza maxima C. H. Lamoureux 1957-4-7 1193 Sonoma 1 mile north of junction of State Highway 12 and Calistoga Road (which leaves Highway 12 3.5 miles east of Santa Rosa). Comment
  CAS-BOT-BC145279  Briza minor Michener; Bioletti 1893-6-1 s.n. Sonoma Kenwood. Comment
  CAS-BOT-BC145286  Briza minor Peter Rubtzoff 1962-6-13 4900 Sonoma Freestone Marsh. Comment
  UC1130934  Briza minor H. S. Yates 1936-5-3 5576 Sonoma 1 mi nw Petrified Forest; Calistoga Quadrangle Comment
  UCD57433  Briza minor Katharine Brandegee Date Unknown s.n. Sonoma Sebastopol. Comment
  UCD57376  Briza minor M. Wiesendanger 1927-5-4 662 Sonoma Sonoma County. Comment
  CAS-BOT-BC132211  Brodiaea californica var. leptandra R. F. Hoover 1938-6-14 3604 Sonoma 2 mi. se. of Healdsburg Comment
  UCD150132  Brodiaea coronaria Ayzik Solomeshch 2009-5-13 s.n. Sonoma West edge of city of Santa Rosa, S of Hwy 12 and just E of S Wright Rd. San Jones wetland, sampling pool #1. 31 Comment
  JEPS7640  Brodiaea elegans subsp. elegans W. L. Jepson 1918-6-23 7655 Sonoma Poor Man's Flat Windsor, Poor Man's Flat 30 Comment
  PASA507  Brodiaea laxa Frank W. Peirson 1926-4-1 Sonoma 6 miles south of Cloverdale Comment
  UC1442870  Brodiaea leptandra Theodore F. Niehaus 1966-5-4 679 Sonoma 2.6 mi w Napa/Sonoma Co. line (on Springs Mtn Rd) Comment
  SD58370  Brodiaea stellaris Harry K. Roberts 1961-5-23 Sonoma About 1.75 miles northeast of Occidental, just west of County Dump at top of Harrison Grade, Ao to I(c) mile west of the type locality of Arctostaphylos bakeri. 221 Comment
  CAS-BOT-BC486526  Brodiaea stellaris Roxana S. Ferris; Laura Lorraine 1961-6-15 13574 Sonoma Junction of Occidental Road with Facendini Lane Comment
  UCD77159  Brodiaea terrestris Robert E. Preston 2005-6-11 2350 Sonoma Irish Hill, along Coleman Valley Rd, ca. 1 mi E of Hwy 1. 208 Comment
  CAS-BOT-BC486466  Brodiaea terrestris subsp. terrestris Peter Rubtzoff; Rimo Bacigalupi 1971-6-10 6528 Sonoma Bennett Mtn. Lake Comment
  CAS-BOT-BC486477  Brodiaea terrestris subsp. terrestris Peter Rubtzoff; Nancy Harrison 1976-6-18 8642 Sonoma False Lake Meadow area, Annadel State Park. Comment
  UC37619 Image available Bromus arizonicus H. N. Bolander 3985 Sonoma Mark West Creek Comment
  RSA155475  Bromus carinatus L. S. Rose 1962-4-18 62024 Sonoma 1 mile NW of Freestone. 76 Comment
  UCD58202  Bromus carinatus A. A. Beetle; G. L. Stebbins Jr. 1942-6-4 3564 Sonoma 10.2 miles northeast of Santa Rosa on road to Calistoga. Comment
  UCSB50204  Bromus carinatus Gray, John 1976-5-1 Sonoma North Salmon Creek Beach T6N R11W 18 Comment
  UCD58258  Bromus carinatus Collector unknown 1941-6-1 Sonoma Santa Rosa. Veteran's Park. Comment
  CAS-BOT-BC149051  Bromus carinatus var. carinatus Peter Rubtzoff 1952-5-31 1100 Sonoma Pitkin Marsh, near Forestville. Area separating the western branch of the Upper Marsh from the eastern. Comment
  UCD59229  Bromus carinatus var. marginatus Collector unknown 1941-3-1 Sonoma Santa Rosa Junior College. Comment
  CAS-BOT-BC155958  Bromus commutatus Peter Rubtzoff 1962-5-25 4844 Sonoma Atascadero Creek Marsh. Comment
  UCD58480  Bromus commutatus Beecher Crampton 1959-6-16 5398 Sonoma 1 mile northeast of Freestone. Comment
  UCD58485  Bromus commutatus Freed W. Hoffman 1942-6-20 2135 Sonoma North Coast Ranges. Near Guerneville. Comment
  CAS-BOT-BC155665  Bromus diandrus Peter Rubtzoff 1952-5-10 1021 Sonoma Pitkin Marsh near Forestville. Bordering the Upper Marsh in the east. Comment
  CAS-BOT-BC155206  Bromus hordeaceus David L. Morgan 1961-5-17 s.n. Sonoma East of Cotati on Petaluma Hill Road near Cotati Avenue. Comment
  CAS-BOT-BC155250  Bromus hordeaceus John H. Thomas 1966-5-8 11596 Sonoma 1.4 miles west of Napa-Sonoma county line. Along road between Calistoga and Santa Rosa. Comment
  RSA785738  Bromus hordeaceus Carrie A. Herd 1982-4-25 117 Sonoma Rohnert park. California State University, Sonoma, Open field between down parking lo and bicycle path. Comment
  UCD58688  Bromus hordeaceus Beecher Crampton 1957-7-11 4338 Sonoma Bluffs just south of Portuguese Beach. Sonoma Coast State Park. 2.5 miles north of Salmon Creek. Comment
  CAS-BOT-BC162397  Bromus laevipes G. DeNevers 1981-5-9 1101 Sonoma Pepperwood Ranch. South of Redwood Canyon. Comment
  UCD36697  Bromus laevipes Beecher Crampton 1955-6-17 2977 Sonoma Sonoma County, 2.4 miles south of Monte Rio, road to Camp Meeker. Comment
  UCD58924  Bromus laevipes B. Crampton 1955-6-8 2826 Sonoma 7 miles northwest of Calistoga. Along State Hwy. 128. Comment
  SEINET10524463  Bromus marginatus A. Arthur Heller 1902-4-9 Heller 5247 Sonoma In a railroad cut three miles south of Healdsburg. Comment
  CAS-BOT-BC162256  Bromus maritimus Peter H. Raven 1963-4-28 18249 Sonoma Between town of Bodega Bay and Bodega Head. Comment
  CAS-BOT-BC161700  Bromus rubens Mary P. Wells 1984-5-24 306 Sonoma Annadel State Park southeast of Santa Rosa. Comment
  UC766916  Bromus vulgaris R. F. Hoover 1941-5-14 5097 Sonoma sw of Occidental (near Joy District School) Comment
  UCD151081  Bromus vulgaris James A. Neilson Jr. 1974-6-1 3022 Sonoma Mayacmas Mountains, 1/4 mi. south of Geyser Rock area, ca. 3 1/2 mi. west of Whispering Pines, east Sonoma County. (Elevation estimated by label maker using Google Earth.) 1027 Comment
  UCD60250  Bromus vulgaris Beecher Crampton 1955-6-17 2955 Sonoma 5 miles W of Cazadero. Comment
  UCD60255  Bromus vulgaris Mary M. Hektner 1976-5-6 262 Sonoma Unit 34-A Owner's Map, Sea Ranch, near State Highway 1. Comment
  UCR141958  Bromus vulgaris Beecher Crampton 1955-6-17 2928 Sonoma North Coast Range, 1.6 miles west of Forestville, along State Highway 116 ['12'] 61 Comment
  UC855700  Cakile maritima Milo S. Baker 1938-5-6 8978 Sonoma near Sea Cliff n of Salmon Creek Comment
  CAS-BOT-BC36913  Cakile maritima var. maritima Walter Knight; Irja Knight 1963-8-13 138 Sonoma Horseshoe Cove. Comment
  UCD37161  Calamagrostis bolanderi Beecher Crampton 1957-7-22 4379 Sonoma Sonoma County, Sonoma Coast State Park, 8.7 miles south of Stewart's Point. Comment
  UCD57039  Calamagrostis bolanderi Freed W. Hoffman 1941-6-15 2157 Sonoma North Coast Ranges, Sonoma Coast, Eckert's Ranch near Salt Point. Comment
  UCD57042  Calamagrostis bolanderi Beecher Crampton 1957-7-22 4379 Sonoma State Hwy. 1, 8.7 miles south of Stewart's Point. Comment
  CAS-BOT-BC185302  Calamagrostis koelerioides Roxana S. Ferris; Laura Lorraine 1961-6-15 13563 Sonoma Harrison Grade, 1.3 mile from junction with Green Valley Road. Comment
  CAS-BOT-BC185127  Calamagrostis nutkaensis Peter Rubtzoff 1952-5-21 1058 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh. Comment
  UCD57505  Calamagrostis nutkaensis P. B. Kennedy 1916-7-17 s.n. Sonoma Del Mar Ranch. Comment
  UCD57515  Calamagrostis nutkaensis Chris Bowen 1974-6-2 146 Sonoma near State Highway 1, Sea Ranch, Unit 7 Owners' Map, near Whaler's Reach. 30 Comment
  CDA11252  Calamagrostis ophitidis G. F. Hrusa, G. L. Stebbins, D. Keil, V. L. Holland 1994-6-5 11875 Sonoma North Coast Biodiversity Arena; Colonial bunchgrass beneath open Cupressus sargentii woodland/forest. Large serpentine outcrop approx. 1 m. N of Camp Meeker on Bohemian Hwy.. 0 Comment
  UC963876  Calamagrostis ophitidis Milo S. Baker 1947-5-30 11772 Sonoma along Harrison Grade ca 2 mi ne Occidental; Nort Bay Counties Comment
  CAS-BOT-BC361366  Calandrinia breweri Greg de Nevers 1997-4-12 10930 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa Oak Hill Ranch 400 Comment
  CAS-BOT-BC438606  Calandrinia ciliata Peter Rubtzoff 1952-5-10 1026 Sonoma Pitkin Marsh, near Forestville. Bordering the Upper Marsh in the west. Comment
  CAS-BOT-BC273245  Calendula arvensis John Thomas Howell 1954-4-1 29138 Sonoma Along highway just east of Shellville Comment
  SEINET11845325  Calendula arvensis W. Knight, Knight, I. 1990-1 6576 Sonoma 1.2 mi S of Warm Springs Rd (Kenwood) Comment
  CAS-BOT-BC290681  Callitriche heterophylla Peter Rubtzoff 1971-5-8 6450 Sonoma Intermittent lake off west side of Highway 1, 0.7 miles southeast of Salmon Creek crossing. Comment
  CAS-BOT-BC293676  Callitriche heterophylla Peter Rubtzoff 1973-7-24 7202 Sonoma Upper Green Valley Marsh. Comment
  RSA90503  Callitriche heterophylla subsp. bolanderi Leo Koch 1939-5-15 630 Sonoma Hamilt(a)on Ranch. 1 mile from Old Adobe. East of Petaluma. Comment
  CAS-BOT-BC290709  Callitriche marginata Peter Rubtzoff 1972-5-25 6748 Sonoma Laguna, Chileno Valley. Comment
  RSA0035350  Callitriche verna Peter Rubtzoff 1974-4-6 7348 Sonoma Kenwood Marsh. Comment
  UCR249066  Callitriche verna Peter Rubtzoff 1969-5-3 6027 Sonoma Laguna de Santa Rosa, east of Sebastopol 21 Comment
  CAS-BOT-BC290703  Calochortus Peter Rubtzoff; Nancy Harrison; Dug Jones 1974-6-8 7574 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  SD6492  Calochortus amabilis Michener, Bioletti 1891-1 2122 a Sonoma Hood's Peak. Comment
Read comments
May 14 2010
  CAS-BOT-BC483280  Calochortus amabilis Aven Nelson; Ruth A. Nelson 1933-5-14 557 Sonoma Kenwood Comment
  CAS-BOT-BC483291  Calochortus amabilis A. T. Graff 1925-5-20 s.n. Sonoma Trospers, Cazadero Comment
  RSA257007  Calochortus amabilis Gary D. Wallace, Larry E. DeBuhr 1972-5-24 1087 Sonoma 150 yds from Napa Co. line along Hwy 128. Comment
  SEINET12048678  Calochortus amabilis F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -079 Sonoma ca 4 mi NNW of Sonoma on Cavedale Road from junction with CA 12, ca 0.5 mi N on Cavedale Rd from jct 152 Comment
  UCR248727  Calochortus luteus Peter Rubtzoff, Nancy Harrison, Doug Jones 1974-6-8 7574 Sonoma Todd Road, 1.4 miles from Hwy 116 and 0.6 miles from Llano Road 29 Comment
  CAS-BOT-BC492631  Calochortus luteus Peter Rubtzoff 1961-6-23 4640 Sonoma Bennett Mtn. Lake. Comment
  UCD139533  Calochortus luteus G. V. Morejohn 1954-5-23 30 Sonoma beside Highway 12, 3 miles north of Sonoma. Comment
  SEINET10859649 Image available Calochortus raichei Roger E. Raiche 1986-7-7 Raiche 60214 Sonoma N of Cazadero. The Cedars. Headwaters of Big Austin Creek, near Laton Mine. 840 Comment
  JEPS55638  Calochortus tolmiei Wayne Roderick 1967-5-13 Sonoma ca 1 rd mi n Fort Ross 22 Comment
  CAS-BOT-BC132635  Calochortus uniflorus Alice Eastwood 1921-4-24 10336 Sonoma Santa Rosa Comment
  CAS-BOT-BC132642  Calochortus uniflorus Ella Dales Cantelow 1939-4-8 3966 Sonoma S. of Shellville Comment
  CAS-BOT-BC181539  Caltha palustris Peter Rubtzoff 1955-4-9 1768 Sonoma Forestville Marsh Comment
  CAS-BOT-BC270849  Calycadenia pauciflora 1877-6-26 s.n. Sonoma Geysers Comment
  CAS-BOT-BC270843  Calycadenia pauciflora Gerald D. Carr 1972-3-20 688 Sonoma 2.0 miles N of Highway 128 on Ida Clayton Road 487 Comment
  CAS-BOT-BC270844  Calycadenia pauciflora Gerald D. Carr 1972-3-20 687 Sonoma 1.0 mile W of Westside Road on Mill Creek Road, 2.5 miles SW of Healdsburg 106 Comment
  RSA255609  Calycadenia pauciflora Gerald D. Carr 1972-9-11 731 Sonoma 1 mile west of Westside Road on Mill Creek Road, 2.5 miles SW of Healdsburg 107 Comment
  RSA0025118  Calycadenia truncata Peter Rubtzoff 1966-8-3 5779 Sonoma Going up Bennett Mountain from Lawndale to Bennett Mountain Lake. Comment
  UC89049  Calycadenia truncata Michener and Bioletti 1891-9-7 1220 a Sonoma Comment
  CAS-BOT-BC272761  Calycadenia truncata subsp. truncata Greg de Nevers 1990-7-24 9681 Sonoma Pepperwood Natural Preserve. 3450 Franz Valley Road. Devils Kitchen 457 Comment
  CAS-BOT-BC90994  Calycanthus occidentalis Peter Rubtzoff 1987-7-18 9798 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC91009  Calycanthus occidentalis James McMurphy 1909-5-29 s.n. Sonoma Near the Geysers. Comment
  SD134014  Calycanthus occidentalis Peter Rubtzoff 1971-9-3 6698 Sonoma Springy area along southeastern border of Spring Creek Reservoir area. Comment
  SEINET5784448 Image available Calycanthus occidentalis Marcus E. Jones 1882-1 Sonoma Duncan's Mills Comment
  UC1536225  Calycanthus occidentalis William Stone 1987-5-25 Sonoma 3 mi e Guerneville (Russian River, Odd Fellows Recreation Club Park) Comment
  UC1745704  Calycanthus occidentalis Annetta M. Carter, Kathryn Thornburg, Florence Little 1938-5-30 Sonoma Cloverdale Grade Comment
  HSC16569  Calypso bulbosa F. Demostene 1966-4-11 41 Sonoma 25 mi. W of Healdsburg Comment
  CAS-BOT-BC223619  Calystegia collina subsp. oxyphylla Roxana S. Ferris; Laura Lorraine 1948-6-9 11660 Sonoma Summit of grade between Mark West Valley and Franz Valley Comment
  SBBG5769  Calystegia purpurata H. and M. Dearing 1939-5-14 3353 Sonoma Bodega State Park [Bodega Dunes State Beach] Comment
  RSA710253  Calystegia purpurata subsp. saxicola R. K. Brummitt 1997-6-10 19682 Sonoma 1 km S of Sereno Del Mar, just S of Schoolhouse Beach 15 Comment
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Mar 15 2013
  UC1794982  Calystegia purpurata subsp. saxicola R. K. Brummitt 1997-6-10 19682 Sonoma 1 km S of SERENO DEL MAR, just S of Schoolhouse Beach 15 Comment
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Mar 15 2013
  CAS-BOT-BC344885  Camassia Peter Rubtzoff 1970-5-10 6214 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  CAS-BOT-BC498777  Camassia quamash subsp. linearis J. W. Congdon 1880-5-16 s.n. Sonoma Sebastopal Road, Mariposa Comment
  UCD166111  Camissonia Peter Rubtzoff 1972-4-23 6739 Sonoma Vernal pool, 4.25 miles west of Glen Ellen on Bennett Valley Road. Comment
  RSA29336  Camissonia cheiranthifolia subsp. cheiranthifolia E. K. Balls 1953-10-9 18597 Sonoma South end of Doran Park, Bodega Bay, Hwy 1 3 Comment
  UCD103511  Camissoniopsis cheiranthifolia H. A. Borthwick 1925-6-7 1844 Sonoma Willow Camp. Comment
  CAS-BOT-BC160365  Camissoniopsis cheiranthifolia subsp. cheiranthifolia A. A. Heller 1940-5-17 15626 Sonoma North of the town of Bay, Bodega Bay Comment
  CAS-BOT-BC160364  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Peter H. Raven 1963-4-28 18247 Sonoma Between town of Bodega Bay and Bodega Head Comment
  RSA264763  Campanula californica Peter Rubtzoff 1965-8-10 5588 Sonoma Duncan's Mill Marsh Comment
  CAS-BOT-BC266422  Campanula californica Carl B. Wolf 1927-9-2 1355 Sonoma 1 mile S of the Gualala RIver on Coast Road Comment
  HSC86665  Campanula californica R. W. Becking 1988-8-12 Sonoma Seaside Estate Meadow area W of Hwy. 1 Comment
  SEINET10463913  Campanula californica Baker 1928-6-28 Baker 30466 Sonoma Pitkin Marsh. Comment
  SEINET10463934  Campanula californica Rimo Bacigalupi 1967-8-30 Bacigalupi 9312 Sonoma Pitkin Marsh, near eastern end of Templeman Road, southeast of Forestville 46 Comment
  JEPS128369  Campanula griffinii Roger Raiche 2010-6-16 024 .10 Sonoma The Cedars. Peak Fork at Pygmy Fork, Mineral Spring Canyon. Bearpen Creek watershed (CalWater # 1114.120002). Comment
  SEINET10905925  Campanula prenanthoides P. Rubtzoff 1951-8-25 Rubtzoff 667 Sonoma Forested hills southeast of Guerneville Comment
  UCD114119  Capsella bursa-pastoris Frederica Bowcutt; Kate Mawdsley 1996-3-24 2070 Sonoma Sugarloaf Ridge State Park; about 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood, and 18 air miles NW of Napa. About 1 air mile S of Red Mountian, just S of Sonoma Creek. Meadow in center of campground, E end of meadow just S of outdoor center. 365 Comment
  CAS-BOT-BC37752  Cardamine californica R. H. Thompson 1880-4-1 s.n. Sonoma Near Healdsburg. Comment
  UC1299650  Cardamine californica Freed W. Hoffman 1947-3-11 821 Sonoma headwaters Duvoul Creek (a branch of Dutch Bill Creek and tributary of Russian River); North Coast Ranges, , Dutch Bill Creek, Russian Comment
  CAS-BOT-BC37772  Cardamine californica Mrs. H. C. Cantelow 1937-3-25 s.n. Sonoma Near Valley Ford. Comment
  POM272804  Cardamine californica var. integrifolia Lyman Benson 1929-3-21 1026 Sonoma 5 miles S of Petaluma. Comment
  RSA63681  Cardamine californica var. integrifolia Milo S. Baker 1950-4-1 12155 Sonoma West side of Los Guilicos Val[ley] near old R.R. tracks. Comment
  CAS-BOT-BC38028  Cardamine oligosperma Peter Rubtzoff 1957-5-4 3309 Sonoma Duncans Mills Marsh. At the border of the upper part of the marsh. Comment
  JEPS53301  Cardamine oligosperma J. Burtt Davy 1896-3-13 1643 Sonoma near Duncan's Mills; near Duncan's Mills Comment
  UC727778  Cardamine oligosperma Milo S. Baker Apr. 1946 11309 Sonoma Brookside Garden near Kenwood; Brookside Garden near Kenwood Comment
  JEPS128328  Cardamine pachystigma var. dissectifolia Roger Raiche 2010-2-7 006 .10 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  RSA107087  Cardionema ramosissimum L. S. Rose 1956-7-16 56129 Sonoma Bodega Point. 9 Comment
  CAS-BOT-BC281770  Carduus pycnocephalus Gordon H. True 1968-7-5 4668 Sonoma Point Reyes Bird Observatory ca 3 miles NW of Bolinas at Arroyo Hondo. Conium plot between Arroyo Hondo and entrance road 60 Comment
  UCD161860  Carex James A. Neilson Jr. 1973-6-6 s.n. Sonoma Mayacmas Mountains. The Geysers. Site IV. (Exact location of Site IV unknown. Elevation and coordinates very broadly estimated by label maker.) 441 Comment
  CAS-BOT-BC334523  Carex abrupta Peter Rubtzoff 1957-5-4 3307 Sonoma Duncans Mills Marsh. Comment
  CAS-BOT-BC334524  Carex abrupta Peter Rubtzoff 1958-4-26 3585 Sonoma Laguna de Santa Rosa east of Sebastopol. Comment
  CAS-BOT-BC353409  Carex abrupta Peter Rubtzoff 1958-6-1 3691 Sonoma Laguna de Santa Rosa east of Cunningham, near Llano Road. Comment
  CAS-BOT-BC353417  Carex abrupta Peter Rubtzoff 1959-5-31 s.n. Sonoma Freestone Marsh. Comment
  UCD140074  Carex amplifolia Frederica Bowcutt 1994-7-5 1934 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. Adobe Canyon N of Sonoma Creek about 30 feet, 70 ft. S of campfire center along N edge of Sonoma Creek, N and E of campground, just N of bridge to campfire center. 381 Comment
  CAS-BOT-BC18136  Carex athrostachya John Thomas Howell; J. W. Stacey 1937-6-6 13018 Sonoma Sebastopol. Comment
  CAS-BOT-BC312673  Carex athrostachya Peter Rubtzoff 1973-8-27 s.n. Sonoma Upper Green Valley Marsh. Comment
  UCR208536  Carex athrostachya Peter Rubtzoff 1960-5-20 4395 Sonoma Laguna de Santa Rosa, east of Graton, between Occidental and Guerneville roads 23 Comment
  CAS-BOT-BC371454  Carex barbarae Peter Rubtzoff 1958-4-26 3606 Sonoma Laguna de Santa Rosa, east of Sebastopol. Comment
  CAS-BOT-BC422350  Carex barbarae Peter Rubtzoff 1958-5-10 3655 Sonoma Laguna de Santa Rosa, north of Cunningham (near Todd Road). Comment
  CAS-BOT-BC19372  Carex barbarae Bioletti 1893-6-1 s.n. Sonoma Los Guilicos Valley. Comment
  RSA0015629  Carex barbarae Peter Rubtzoff 1975-7-3 8152 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC329312  Carex bolanderi Peter Rubtzoff 1954-8-2 1621 Sonoma Duncans Mills Marsh. Comment
  RSA0031800  Carex bolanderi Peter Rubtzoff 1954-8-2 1621 Sonoma Duncans Mills Marsh. Upper portion of the marsh. Comment
  HSC100878  Carex bolanderi Peter Warner 2011-6-16 217 Sonoma Jenner Headlands property, E area, ~1.7 mi. NNW of Duncans Mills, ~250 m up 'east ridge' road from main gravel road. 294 Comment
  JEPS117110  Carex bolanderi Peter Warner 2010-7-8 171 Sonoma Jenner Headlands, along main road across property, ~ 4.1 km, W 322 deg. N of Duncans Mills Comment
  CAS-BOT-BC34025  Carex brevicaulis John Thomas Howell 1938-7-3 13954 Sonoma 3 miles south of Sebastopol. Comment
  SEINET7552671 Image available Carex brevicaulis John Thomas Howell 1955-6-2 30258 Sonoma Near Vine Hill school Comment
  CAS-BOT-BC110183  Carex buxbaumii Peter Rubtzoff 1951-6-7 129 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh. Comment
  CAS-BOT-BC110184  Carex buxbaumii John Thomas Howell 1945-7-18 21327 Sonoma Pitkin Marsh. Comment
  UCD140186  Carex buxbaumii Frederica Bowcutt 1994-6-12 1851 a Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Adobe Canyon along Pony Gate Trail along east west trending stretch before entering woodland. 411 Comment
  UCR248870  Carex cusickii Peter Rubtzoff 1955-5-14 1839 Sonoma Forestville Marsh 71 Comment
  RSA94278  Carex cusickii Peter Rubtzoff 1951-7-14 434 Sonoma Pitkin Marsh, near Forestville. Southern half of lower marsh. Comment
  CAS-BOT-BC18977  Carex densa John Thomas Howell 1938-7-3 13964 Sonoma Pitkin Marsh. Comment
  CAS-BOT-BC18980  Carex densa John Thomas Howell; J. W. Stacey 1936-7-26 12665 Sonoma Occidental. Comment
  CAS-BOT-BC18986  Carex densa G. DeNevers 1981-6-15 1536 Sonoma Pepperwood Ranch. Along the stream down from the Rogers Apple Orchard. Comment
  CAS-BOT-BC20485  Carex densa Peter Rubtzoff 1952-5-31 1122 Sonoma Pitkin Marsh, near Forestville. Lower part of the Upper Marsh. Comment
  CAS-BOT-BC242636  Carex densa Peter Rubtzoff 1957-5-11 3329 Sonoma Occidental Marsh Comment
  UC1586927  Carex densa Juha Pykala and D. H. Norris 1987-5-31 1303 Sonoma e Guerneville Road; Pitkin Marsh 35 Comment
  UC589965  Carex densa H. S. Yates 1936-5-16 5583 Sonoma 1 mi ne Graton; Sebastopol Quadrangle 30 Comment
  CAS-BOT-BC20507  Carex densa Peter Rubtzoff 1958-4-26 3604 Sonoma Sonoma County Marshes. Laguna de Santa Rosa east of Sebastopol. Comment
  CAS-BOT-BC20517  Carex densa John Thomas Howell 1935-5-5 12605 Sonoma Low field near Kenwood. Comment
  UC70636  Carex deweyana subsp. leptopoda Jos. Burtt Davy 1896-7-24 Sonoma Duncan's Mill Comment
  CAS-BOT-BC19901  Carex echinata subsp. phyllomanica Peter Rubtzoff 1951-6-10 195 Sonoma The Pitkin Marsh, near Forestville. Northern half of Lower Marsh. Comment
  CAS-BOT-BC329291  Carex exsiccata Peter Rubtzoff 1954-7-4 1535 Sonoma Duncans Mills Marsh, upper portion of the marsh. Comment
  CAS-BOT-BC20135  Carex feta Peter Rubtzoff 1961-6-17 4619 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC20139  Carex feta Alice Eastwood; John Thomas Howell 1936-5-19 2525 Sonoma Near Asti. Comment
  CAS-BOT-BC28326  Carex gracilior John Thomas Howell 1947-6-5 23241 Sonoma Cunningham Marsh. Comment
  RSA52337  Carex gracilior J. T. Howell 1947-6-5 23238 Sonoma Cunningham Marsh Comment
  CAS-BOT-BC28370  Carex gracilior Peter Rubtzoff 1955-4-23 1779 Sonoma Bennett Mountain Lake. Comment
  SEINET7560150 Image available Carex gracilior Alice Eastwood, John Thomas Howell 1936-5-19 2499 Sonoma North limits of Santa Rosa. Comment
  CAS-BOT-BC146598  Carex gynodynama Lewis S. Rose 1964-6-3 64053 Sonoma N end of Bodega Bay 1 Comment
  CAS-BOT-BC146614  Carex gynodynama A. A. Heller 1903-4-23 6605 Sonoma Fort Ross Comment
  CAS-BOT-BC328118  Carex gynodynama Peter Rubtzoff 1964-6-3 5348 Sonoma Bodega Bay Marsh. Comment
  CAS-BOT-BC419697  Carex gynodynama Peter Rubtzoff 1959-5-31 4085 Sonoma Freestone Marsh. Comment
  RSA51940  Carex gynodynama J. T. Howell 1947-6-5 23231 Sonoma Cunningham Marsh Comment
  RSA0023075  Carex gynodynama Peter Rubtzoff 1959-5-31 4085 Sonoma Freestone Marsh. Comment
  CAS-BOT-BC311836  Carex harfordii Peter Rubtzoff 1974-6-2 7513 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC312674  Carex harfordii Peter Rubtzoff 1958-5-17 3672 Sonoma Laguna de Santa Rosa east of Cunningham (near Llano Road). Comment
  RSA758131  Carex harfordii Peter Rubtzoff 1954-6-20 1499 Sonoma Guerneville Marsh Comment
  RSA115456  Carex hendersonii Beecher Crampton 1955-6-17 2953 Sonoma 4.5 miles south of Cazadero. Comment
  CAS-BOT-BC31181  Carex lemmonii Peter Rubtzoff 1951-6-16 256 Sonoma Pitkin Marsh, near Forestville. Uppermost part of the western branch of the Upper Marsh. Comment
  CAS-BOT-BC350938  Carex leptopoda Peter Rubtzoff 1960-6-7 4459 Sonoma Austin Creek Marsh. Comment
  HSC7141  Carex leptopoda L. S. Rose 1964-6-3 64051 Sonoma N end of Bodega Bay swamp 2 Comment
  SEINET10894836  Carex leptopoda Lewis S. Rose 1964-6-3 Rose 64051 Sonoma N. end of Bodega Bay swamp. 2 Comment
  CAS-BOT-BC32192  Carex multicaulis D. E. Breedlove 1983-4-11 58672 Sonoma Pepperwood Ranch W of Knights Valley. Comment
  CAS-BOT-BC422366  Carex nudata Peter Rubtzoff 1962-5-6 4811 Sonoma Vacation Beach, 2 miles below Guerneville along Russian River. Comment
  RSA0034042  Carex obnupta Peter Rubtzoff 1964-5-20 5305 Sonoma Brooks Gulch Marsh. Comment
  RSA52171  Carex praegracilis J. T. Howell 1947-6-26 23295 Sonoma Cunningham Marsh. Comment
  CAS-BOT-BC117673  Carex serratodens Gregory Clark de Nevers 1987-4-25 8164 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Rd. 400 Comment
  UCD167210  Carex serratodens James Neilson 1977-4-24 3883 Sonoma Mayacmas Mountains, south side of Pine Mt. (Exact location unknown, coordinates estimated by label maker.) Comment
  CAS-BOT-BC117674  Carex serratodens Gregory Clark de Nevers 1981-4-25 804 Sonoma Pepperwood Ranch, near the main Pepperwood entrance, along the Creek Comment
  CAS-BOT-BC329280  Carex stipata Peter Rubtzoff 1955-5-14 1838 Sonoma Forestville Marsh. Comment
  RSA796406  Carex stipata Peter Rubtzoff, Nancy Harrison 1978-5-20 9178 Sonoma Cunningham Marsh area, on north side of Blucher Creek Valley. Comment
  RSA90862  Carex stipata J. W. Stacey 1937-6-6 13021 Sonoma Sebastopol. Comment
  CAS-BOT-BC371453  Carex subbracteata Peter Rubtzoff 1955-5-14 1842 Sonoma Austin Creek Marsh. Comment
  CAS-BOT-BC115831  Carex subfusca Peter Rubtzoff 1954-7-5 1537 Sonoma Guerneville Marsh. Comment
  UCR248922  Carex tumulicola Peter Rubtzoff 1957-5-26 3359 Sonoma Occidental Marsh Comment
  RSA0020341  Carex tumulicola Peter Rubtzoff 1957-5-26 3359 Sonoma Occidental Marsh. Comment
  CDA33583  Carthamus lanatus Robin Breckenridge & Andrew Smith 2010-7-21 PDR# 1313484 Sonoma Calistoga: La Franchi Ranch, Highway 128. 0 Comment
  CDA6986  Carthamus lanatus William J. Ferlatte 1971-6-17 1349 Sonoma Stewarts Point-Skaggs Springs Road, 9.6 miles east of junction with Annapolis Road. 0 Comment
  CDA6988  Carthamus lanatus T. C. Fuller 1970-9-29 19804 Sonoma North side of Valley Ford Road, 6 miles west of Petaluma. 0 Comment
  CDA7003  Carthamus leucocaulos T. C. Fuller 1978-8-17 20253 Sonoma 1.6 km (1 mile) west of freeway exit, Highway 101, Asti. 0 Comment
  HSC26187  Carthamus leucocaulos William J. Ferlatte 1972-6-22 1392 Sonoma 1 mile W of Asti Comment
  CAS-BOT-BC30023  Castanea Peter Rubtzoff 1954-8-12 1701 Sonoma Vacation Beach, near Guerneville. Forested hii slope above road east of Vacation Beach Comment
  JEPS57380  Castilleja affinis subsp. affinis L. R. Heckard and T. I. Chuang 1968-6-18 1951 Sonoma 5 mi e old Redwood Highway (on Mark West Springs road about 1 mi w of the lodge) Comment
  JEPS128283  Castilleja applegatei subsp. martinii Roger Raiche 2005-4-22 011 .05 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  JEPS11921  Castilleja attenuata Francis W. Pennell 1940-7-3 26042 Sonoma ne of Kenwood; Hoods Peak 731 Comment
  UC1012385  Castilleja attenuata Francis W. Pennell 1940-7-3 26042 Sonoma ne of Kenwood; Hoods Peak 731 Comment
  UC726151  Castilleja attenuata A. A. Heller 1940-4-22 15551 Sonoma near West Windsor Comment
  UCD15832  Castilleja attenuata K. Mawdsley 1998-5-10 30 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. Along Bald Mountain Trail, east of junction with Lower Bald Mountain Trail. 548 Comment
  HSC103519  Castilleja densiflora Thomas W. Nelson, Jane Nelson 1981-5-3 6463 Sonoma Along Pressley Rd., ~ 1 mi. N of junction with Roberts Rd. Comment
  UCD161868  Castilleja foliolosa James A. Neilson Jr. 1981-3-13 3999 Sonoma Mayacmas Mountains; Hummingbird Creek. (Coordinates, location, and elevation estimated by label maker.) Comment
  RSA518685  Castilleja franciscana T. I. Chuang, F. M. Chuang 1969-6-29 6690 Sonoma On south side of Russian River on Highway 1. Comment
  RSA523434  Castilleja franciscana L. R. Heckard 1964-6-12 1385 Sonoma South side of Russian River, just across bridge on state highway 1. Comment
  CAS-BOT-BC243849  Castilleja latifolia Ella Dales Cantelow 1939-4-10 2606 Sonoma 4 1/2 mi. NW of Bodega Comment
  UC70350  Castilleja rubicundula subsp. lithospermoides Milo S. Baker 1898-5-7 599 Sonoma Glen Ellen Comment
  JEPS27975  Castilleja subinclusa subsp. franciscana Rimo Bacigalupi, and L. Heckard 1961-6-9 7734 Sonoma 1.75 mi sw Occidental (at junction of Joy Road and Bittner road) 249 Comment
  JEPS116517  Castilleja subinclusa subsp. franciscana Peter Warner 2009-6-3 103 Sonoma Poff Ranch, Wright Hill Road E about 1 mi off State Hwy 1, in grassland 50 m ESE of main (west) gate 250 Comment
  JEPS23808  Castilleja wightii Rimo Bacigalupi with Don Liles 1959-7-13 7323 Sonoma 3.5 mi s Fort Ross (along State Hwy 1) 137 Comment
  JEPS3671  Castilleja wightii C. R. Bell 1951-6-6 1133 Sonoma about 1 mi s Bodega (rocky point between State Hwy 1 and Bodega Bay) Comment
  UC26494  Castilleja wightii Harley P. Chandler 1900-5-25 710 Sonoma Bodega Bay Comment
  RSA221718  Castilleja wightii Noel Holmgren, Liew Fah Seong 1969-6-23 3607 Sonoma Calif. 1, 18.6 miles north of Marin County line, by entrance to Shell Beach. Comment
  CAS-BOT-BC47802  Ceanothus John Thomas Howell 1935-5-5 12618 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  CAS-BOT-BC47804  Ceanothus James McMurphy 1909-5-29 s.n. Sonoma Creek between Geyser Mountain and the Geysers Comment
  UC1614461  Ceanothus Charles M. Belshaw 1936-3-8 1583 Sonoma 3/4 mi. n. Annadel (n.w. of Kenwood); Inner North Coast Range Comment
  JEPS81592  Ceanothus confusus R. Raiche and K. Zadnik 1982-3-27 20251 Sonoma NW of Hood Mountain (Rincon Ridge) Comment
  RSA21906  Ceanothus confusus J. T. Howell 1937-4-11 12903 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  UC634561  Ceanothus confusus H. L. Mason 1934-4-28 8072 Sonoma Jensen's Ranch, at head of Dohrmans Creek Comment
  CAS-BOT-BC49197  Ceanothus cuneatus Walter Knight; Irja Knight 1963-12-27 477 Sonoma Summit, Pine Flat Rd. Comment
  CAS-BOT-BC49200  Ceanothus cuneatus J. P. Moore 1877-5-1 114 Sonoma Knight's Valley Comment
  RSA1353  Ceanothus cuneatus B. D. Stark 1929-7-22 584 Sonoma Sonoma-Mendocino County line. Comment
  UCD160146  Ceanothus cuneatus James A. Neilson Jr. 1974-4-24 2716 Sonoma Mayacmas Mountains, Squaw Creek drainage, at site of geothermal well Ottoboni 17. (Exact location of Ottoboni 17 unknown; this record is georeferenced along Ottoboni Ridge Road in The Geysers; elevation estimated by label-maker). 967 Comment
  JEPS42081  Ceanothus cuneatus var. cuneatus Marie Chase 1928-3-22 Sonoma Kennwood Comment
  UCD112098  Ceanothus cuneatus var. cuneatus Frederica Bowcutt 1996-5-19 2134 Sonoma Sugarloaf Ridge State Park. About 50 air miles north of San Francisco, 10 air miles east of Santa Rosa, 2.5 air miles northeast of Kenwood, and 18 air miles northwest of Napa. Along the ridgeline and on the Napa/Sonoma County line, about 0.5 air mile east of Bald Mountain. Gray Pine Trail. 731 Comment
  UCD158718  Ceanothus foliosus James A. Neilson Jr. 1974-7-10 2836 Sonoma Mayacmas Mountains. South of Little Geysers. 792 Comment
  CAS-BOT-BC49903  Ceanothus foliosus var. foliosus Walter Knight; Irja Knight 1964-1-18 522 Sonoma Hooker Canyon, Cavedale Road Comment
  CAS-BOT-BC49913  Ceanothus foliosus var. foliosus D. E. Breedlove 1983-4-11 58671 Sonoma Pepperwood Ranch W of Knights Valley Comment
  CAS-BOT-BC50007  Ceanothus gloriosus John Thomas Howell 1935-5-5 12620 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  CAS-BOT-BC50017  Ceanothus gloriosus John Thomas Howell 1937-4-11 12900 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  CAS-BOT-BC32736  Ceanothus gloriosus var. exaltatus John Thomas Howell 1931-3-14 5781 Sonoma Vine Hill District, 10 miles W of Santa Rosa Comment
  UC870563  Ceanothus gloriosus var. exaltatus Koch 1938-3-30 72 Sonoma Santa Rosa Junior College campus. Transplanted from Vine Hill region near type locality. Comment
  HSC101102  Ceanothus gloriosus var. exaltatus Peter Warner 2011-8-12 231 Sonoma Jenner Headlands, mid-upper Jenner Gulch watershed, ridgetop, about 1.6 km N42 deg. E fr. cottage on Willig Extension 322 Comment
  UC1070747  Ceanothus incanus H. S. Yates 1934-4-21 3782 Sonoma Near Freestone 60 Comment
  RSA63688  Ceanothus incanus Howard N. Jensen 1942-4-29 27 Sonoma SW corner science bldg on Santa Rosa Junior College Campus Comment
  UC1070785  Ceanothus jepsonii C. M. Belshaw 1936-3-8 1584 Sonoma .75 mi n. Annadel (nw of Kenwood); Santa Rosa quad. Comment
  UC70452  Ceanothus jepsonii Milo S. Baker 1898-6-11 662 Sonoma near Geysers (Hog Back) Comment
  CAS-BOT-BC51130  Ceanothus jepsonii var. albiflorus Roger Raiche 1985-4-6 RR 50182 Sonoma Dry Cr area nr Healdsburg, ridge W of Dry Cr Val, unnamed rd N of Dorman Cyn on ridge 243 Comment
  CAS-BOT-BC51870  Ceanothus parryi H. E. McMinn 1922-6-7 165 Sonoma Camp Meeker Comment
  CAS-BOT-BC51876  Ceanothus parryi John Thomas Howell; Catherine Best; Gordon H. True 1982-5-6 54689 Sonoma Bouverie Audobon Preserve, about 1.5 miles East of Glen Ellen near Stuart Creek 137 Comment
  CAS-BOT-BC51891  Ceanothus parryi A. A. Heller; H. E. Brown 1902-5-29 5620 Sonoma Mt. Hood Comment
  JEPS25143  Ceanothus parryi G. Thomas Robbins 1959-5-16 4013 Sonoma on Spring Mtn Road between Calistoga Road and Sonoma-Napa County line (along upper Mark West Creek, Mayacamas Mts.); Mayacamas Mts., along upper Mark West Creek 426 Comment
  RSA122367  Ceanothus parryi H. S. Yates 1934-4-21 3814 Sonoma near Guerneville 91 Comment
  UC1299539  Ceanothus parryi Freed W. Hoffman 1947-5-30 521 Sonoma Layton Mine North Coast Ranges, Austin Creek (Austin Creek) Comment
  UCD170336  Ceanothus parryi D. O. Burge 2016-11-3 2195 Sonoma Mount Saint Helena, roadside on Ida Clayton Road. 600 Comment
  CAS-BOT-BC51887  Ceanothus parryi Roger Raiche 1985-4-6 RR 50183 Sonoma West of Healdsburg, Dry Creek area, ridge West of Dry Creek Valley and North of Dorman Canyon (Crane Creek) 243 Comment
  UCD112486  Ceanothus parryi Collector unknown Date unknown s.n. Sonoma S.W. part of county. Comment
  UCD112879  Ceanothus parryi Roger Raiche 1985-4-6 RR 50183 Sonoma West of Healdsburg, Dry Creek area, ridge west of Dry Creek Valley and north of Dorman Canyon (Crane Creek). 243 Comment
  CAS-BOT-BC52124  Ceanothus prostratus J. Clausen 1933-3-26 736 Sonoma Rincon Range east of Santa Rosa Comment
  LA44966  Ceanothus prostratus Milo S. Baker; 1933-5-26 7338 Sonoma Rincon Ridge about 2 mi. NE of Santa Rosa Comment
  UC1254092  Ceanothus purpureus J. A. Delapp 1964-2-28 71 Sonoma Black Mountain, Quad. 61D-3 457 Comment
  CAS-BOT-BC83740  Ceanothus sonomensis D. O. Burge; Steven Kembel 2008-5-29 1002 b Sonoma Sonoma Mountains, Annadel State Park 330 Comment
  CDA31309  Ceanothus sonomensis D. G. Kelch, Ed Biffin 2010-5-3 10 .193-B Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  RSA757810  Ceanothus sonomensis Dylan O. Burge 2008-5-25 DOB 991 c Sonoma Mayacmas Mountains, western slope of Hooker Canyon, at the residence of Marc Schwager and Allison Ash, Elarra Reserve, 3200 Cavedale Road, 4.5 km 92 degrees east-southeast of Glen Ellen. 500 Comment
  UC580719  Ceanothus sonomensis C. M. Belshaw 1936-3-8 1581 Sonoma 3/4 mile north of Annandel, northwest of Kenwood 144 Comment
  SEINET12210783  Ceanothus sonomensis W. Knight, Knight, I. 1982-1 4501 Sonoma Tilden Botanic Garden, Berkeley Comment
  UC58242  Ceanothus thyrsiflorus var. griseus A. A. Heller 1903-4-23 6606 Sonoma Fort Ross. Comment
  CAS-BOT-BC277018  Centaurea iberica Bremner 1932-8-11 s.n. Sonoma Santa Rosa Comment
  UC397072  Centaurea iberica Grace M. Cole 1929-7-29 Sonoma Santa Rosa Comment
  CAS-BOT-BC277156  Centaurea melitensis G. DeNevers 1981-6-6 1459 Sonoma Pepperwood Ranch Comment
  CAS-BOT-BC277253  Centaurea solstitialis Walter Knight; Irja Knight 1963-12-27 451 Sonoma Pine Flat Rd. Circle 8 Ranch Comment
  CAS-BOT-BC277254  Centaurea solstitialis G. DeNevers 1981-6-6 1447 Sonoma Pepperwood Ranch. At the first Pepperwood entrance Comment
  CAS-BOT-BC271540  Centromadia parryi subsp. parryi David D. Keck 1933-11-10 2730 Sonoma 2.3 mi. S.W. of Shellville railroad station Comment
  CAS-BOT-BC249316  Cerastium Peter Rubtzoff 1967-8-22 5858 Sonoma Hillside depression southeast of Lower Salmon Creek Marsh. Comment
  CAS-BOT-BC251267  Cerastium Peter Rubtzoff 1964-5-20 5315 Sonoma Brooks Gulch Marsh. Comment
  CAS-BOT-BC251311  Cerastium Peter Rubtzoff 1959-6-20 4155 Sonoma Willow Creek Marsh. Comment
  CAS-BOT-BC384972  Cerastium arvense A. A. Heller; H. E. Brown 1902-4-11 5269 Sonoma Bodega Bay Comment
  SEINET7067242  Cerastium glomeratum A. G. Vestal 1947-5-13 s.n. Sonoma Bodega Head. Coordinate datum: NAD27. Comment
  UCD98054  Cerastium glomeratum Caitlin Lewis; William Mutch 1993-4-17 s.n. Sonoma about 40 air miles N of San francisco, 11 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood. In Adobe Canyon, N of Sugarloaf Ridge and S of Red Mtn. 1 mile. Near visiter center. 365 Comment
  CAS-BOT-BC400223  Ceratophyllum demersum Greg de Nevers 1991-8-8 9769 Sonoma Pepperwood Natural Preserve. 3450 Franz Valley Road. In largest Double Pond 475 Comment
  CAS-BOT-BC400224  Ceratophyllum demersum Greg de Nevers 1996-10-18 10888 Sonoma Pepperwood Natural Preserve. 3450 Franz Valley Road. In Biggest Double Pond 487 Comment
  CAS-BOT-BC400229  Ceratophyllum demersum Peter Rubtzoff 1970-8-18 6319 Sonoma 5 mi. north of Sears Point Comment
  CAS-BOT-BC400232  Ceratophyllum demersum Peter Rubtzoff 1962-10-23 5123 Sonoma Laguna de Santa Rosa area east of Graton, betw. Occidental and Guerneville roads Comment
  UC15102 Image available Cercis occidentalis H. N. Bolander 1864-1 3946 Sonoma The Geysers Comment
  CAS-BOT-BC434183  Cercocarpus betuloides Walter Knight; Irja Knight; Tiffany Knight 1985-6-30 5393 Sonoma Pine Mt. Road Comment
  SEINET11908935  Cercocarpus betuloides W. Knight, Knight, I. 1981-1 3989 Sonoma 5.6 mi up Cavedale Road at summit from jct of state route #12 Comment
  CAS-BOT-BC135415  Cercocarpus betuloides var. betuloides A. A. Heller; H. E. Brown 1902-3-25 5147 Sonoma Near Mark West Springs Comment
  JEPS26636  Chamaemelum fuscatum R. Bacigalupi 1948-4-4 2870 Sonoma ca 2 mi s of Asti (along U.S. 101) Comment
  UC754296  Chamaemelum fuscatum R. Bacigalupi 1948-4-4 2870 Sonoma 2 mi s of Asti (along U.S. 101) Comment
  CAS-BOT-BC279779  Chamaemelum fuscatum John H. Thomas 1974-3-20 17061 Sonoma Near Asti Comment
  CAS-BOT-BC279786  Chamaemelum fuscatum M. S. Baker 1940-5-18 9505 Sonoma 101 n. of Cloverdale on s. slope of hill near top of Swiss Italian Colony at Asti Comment
  UCD159761  Cheilanthes intertexta James A. Neilson Jr. 1975-1-24 3131 Sonoma Mayacmas Mountains; Alder Creek drainage, 200 yards south of county line near jeep road. Dominichelli Ranch. (Exact location unknown. Elevation and coordinates estimated by label maker.) 731 Comment
  RSA783840  Chenopodium Peter Rubtzoff 1971-8-9 6638 Sonoma Laguna, Chileno Valley. Comment
  CAS-BOT-BC493399  Chlorogalum pomeridianum Roxana S. Ferris; Laura Lorraine 1961-6-14 13527 Sonoma Junction of Bittner Road with Joy Road, between Occidental and Bodega Comment
  CDA33563  Chondrilla juncea Robin Breckenridge & Katie Filippini 2010-7-22 PDR# 1313481 Sonoma Petaluma; Hwy 116/Lakeville Rd & Hwy 101. 0 Comment
  CAS-BOT-BC191509  Chorizanthe cuspidata var. villosa Lewis S. Rose 1962-8-6 62077 Sonoma Bodega Point 30 Comment
  CAS-BOT-BC376251  Chorizanthe membranacea Greg de Nevers 1995-5-2 10717 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. On south slope of rock west of High Hill 487 Comment
  CAS-BOT-BC252850  Chorizanthe polygonoides var. polygonoides Alice Eastwood 1925-5-9 11750 Sonoma Mt. St. Helena Comment
  RSA130893  Chrysanthemum segetum E. K. Balls 1958-7-20 23582 Sonoma State Hwy. 1, Bodega Bay to Jenner 46 Comment
  JEPS38077  Chrysolepis chrysophylla Milo S. Baker Sep 1920 Sonoma near Gualala River mouth; Gualala River Comment
  JEPS117090  Cicendia quadrangularis Peter Warner 2010-5-12 149 Sonoma Jenner Headlands, in saddle meadow along Willig Extension Drive (main dirt road on property), 2.06 km past barn; E side of road, S edge of grassland along forest ecotone; on divide between upper SE Russian Gulch and Jenner Gulch watersheds Comment
  RSA791553  Cichorium intybus Peter Rubtzoff 1954-7-28 1599 Sonoma Marshes: Guerneville Marsh. Comment
  UCD130503  Cirsium brevistylum Terri Williamson 1990-5-20 53 Sonoma Bayflat Road, Bodega Bay. 3 Comment
  CAS-BOT-BC290636  Cirsium occidentale var. occidentale Peter Rubtzoff 1958-7-26 3801 Sonoma Laguna de Santa Rosa, east of Sebastopol. Comment
  CAS-BOT-BC280361  Cirsium occidentale var. venustum A. A. Heller 1902-6-24 5753 Sonoma Near Burke's Sanitarium Comment
  UC480934  Cirsium occidentale var. venustum H. P. Chandler 1907-4-21 7531 Sonoma road fr. Glen Ellen to Oakville Comment
  CAS-BOT-BC280535  Cirsium quercetorum Roxana S. Ferris 1932-5-27 8255 Sonoma North end of Bodega Bay Comment
  CAS-BOT-BC280539  Cirsium quercetorum John Thomas Howell 1938-7-3 13953 Sonoma Stony Point Comment
  CAS-BOT-BC280542  Cirsium quercetorum Mrs. H. C. Cantelow 1936-5-3 s.n. Sonoma Near El Verano Comment
  RSA0070859  Cirsium quercetorum J. T. Howell 1938-7-3 13953 Sonoma Stony Point. Comment
  UCD159440  Cirsium vulgare D. S. Park; S. Nicole, M. Armijos, H. Sandhu 2010-8-3 197 Sonoma Roadside population along road leading to Bodega Marine Labs. Abundant. 7 Comment
  UCD159443  Cirsium vulgare D. S. Park; S. Nicole, M. Armijos, H. Sandhu 2010-8-3 200 Sonoma Near Sonoma state beach hiking trail. Abundant. 41 Comment
  CAS-BOT-BC162556  Clarkia affinis Alva Day 1982-6-1 82 65 B Sonoma Pepperwood Ranch Comment
  SDSU8655  Clarkia amoena D. F. Howe 1965-8-3 4098 Sonoma 2.4 miles east of Bodega Bay on #1. Comment
  CAS-BOT-BC161054  Clarkia amoena subsp. amoena Alice Eastwood 1915-6-29 4883 Sonoma Bodega Point Comment
  CAS-BOT-BC161059  Clarkia amoena subsp. amoena C. F. Leitholt 1893-6-1 s.n. Sonoma Bennett Valley Comment
  UC112986  Clarkia amoena subsp. amoena Katharine Brandegee 1908-6-28 Sonoma Glen Ellen Comment
  CAS-BOT-BC161053  Clarkia amoena subsp. amoena John Thomas Howell 1930-7-27 5410 Sonoma 8 miles south of Fort Ross Comment
  RSA0059971  Clarkia amoena subsp. amoena Charlotte M. Hoak 1912-08 s.n. Sonoma Monte Rio. Comment
  CDA40856  Clarkia amoena subsp. huntiana G. F. Hrusa, A. Buckmann 1996-10-5 13585 Sonoma North Coast Biodiversity Arena; Summit of Mayacmas Range at W end of Diamond Mtn. Rd. Approx. 2 m. SW of Calistoga. Comment
  OBI12140  Clarkia amoena subsp. huntiana G. Thomas Robbins 1959-5-16 4015 Sonoma Spring Mtn rd, between Califstoga Rd and Sonoma-Napa county line, Mayacamas Mt 488 Comment
  CAS-BOT-BC172221  Clarkia concinna Mrs. E. C. Sutliffe 1927-6-1 s.n. Sonoma Near Monte Rio Comment
  CAS-BOT-BC172345  Clarkia concinna Elsa G. Ruckert 1960-5-28 162 Sonoma Trinity Road, 1 mile from junction with Highway 12 243 Comment
  CHSC41510  Clarkia concinna subsp. concinna R. N. Bowman 1985-5-23 6073 Sonoma .2 miles w of guarded entrance to 'The Geysers' geothermal power generating area on Geysers Resort Rd. 445 Comment
  JEPS43617  Clarkia concinna subsp. concinna Vina W. Krager 1924-5-18 Sonoma Bodega Comment
  UC73320  Clarkia concinna subsp. concinna Milo S. Baker 1898-5-7 598 Sonoma Glen Ellen Comment
  CAS-BOT-BC172093  Clarkia davyi John H. Thomas 1976-6-15 18318 Sonoma Southern end of the Sea Ranch, northwester part of county, about 7 miles south of Gualala 30 Comment
  RSA41289  Clarkia gracilis subsp. gracilis Robert F. Hoover 1941-5-14 5083 Sonoma 3 miles south of Monte Rio on road to Camp Meeker Comment
  CAS-BOT-BC163136  Clarkia gracilis subsp. sonomensis A. A. Heller 1902-6-10 5682 Sonoma Santa Rosa Comment
  CAS-BOT-BC163148  Clarkia gracilis subsp. sonomensis Alice Eastwood 1915-6-5 4592 Sonoma Petrified Forest Comment
  RSA60765  Clarkia gracilis subsp. sonomensis A. A. Heller 1902-6-10 5682 Sonoma Santa Rosa Comment
  SD51810  Clarkia imbricata Peter H. Raven, Richard Snow 1958-7-23 13691 Sonoma Very near type locality; common in grassy field at 4551 Vine Hill Road near Pitkin Marsh. Comment
  UC1018288 Image available Clarkia imbricata H. Lewis and M. Lewis 1951-7-10 865 Sonoma Santa Rosa to Guerneville 6230 Vine Hill Road; Santa Rosa to Guerneville, Vine Hill Road, Sonoma Co. Comment
  UC728606  Clarkia imbricata Milo S. Baker 1945-7-18 11107 Sonoma along path to <Pitkin> marsh; Pitkin Ranch Comment
  NY37725  Clarkia imbricata P. H. Raven 1958-7-23 13691 Sonoma This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  UC930727  Clarkia purpurea subsp. quadrivulnera Lewis S. Rose 1940-5-22 40374 Sonoma Sonoma 30 Comment
  RSA448314  Clarkia purpurea subsp. quadrivulnera Christopher Davidson 1977-6-20 6017 Sonoma Dry Creek Rd., 9.3 miles W of Geyserville. 91 Comment
  SBBG4989  Clarkia purpurea subsp. quadrivulnera H. and M. Dearing 1939-5-3 3274 Sonoma Pope Valley near St Helena Comment
  CAS-BOT-BC164588  Clarkia purpurea subsp. viminea Dorothy Scherer 1997-5-20 127 Sonoma North side of Fort Ross Rd. and 1/8 mi. west of Seaview Rd, Fort Ross State Historic Park 457 Comment
  JEPS43596  Clarkia unguiculata E. Ferguson 1919-6-11 228 Sonoma near Guerneville Comment
  RSA448463  Clarkia unguiculata Christopher Davidson 1977-6-20 6020 Sonoma Dry Creek Rd., 9.3 miles W of Geyserville. 91 Comment
  CAS-BOT-BC439317  Claytonia exigua subsp. exigua Roxana S. Ferris 1962-4-14 13585 Sonoma Ca. 1/8 mi. beyond County dump Comment
  UCD100597  Claytonia exigua subsp. glauca G. F. Hrusa 1991-4-6 8310 Sonoma app. 1/4 m. N of Ida Clayton Rd. on N shoulder of Mt. St. Helena. 426 Comment
  UC1299361  Claytonia gypsophiloides Freed W. Hoffman 1947-3-5 811 Sonoma near Guerneville (Gilliam Creek); North Coast Ranges, Gilliam Creek Comment
  UC852065  Claytonia gypsophiloides Alice Eastwood 1918-5-1 6819 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC94382  Claytonia gypsophiloides R. C. Wenk 2000-5-14 60 Sonoma along Calistoga Road, at intersection with Cleland Road, 0.45 miles S of intersection with St. Helena Road, Comment
  SD130423  Claytonia parviflora subsp. parviflora F. Almeda, G. DeNevers 1981-3-30 4877 Sonoma Pepperwood Ranch; along road to Garrison Cabin at the SW sector of the ranch Comment
  RSA464447  Claytonia sibirica Anstruther Davidson 1931-05 3664 Sonoma Sonoma County (No data on label Comment
  CHSC43170  Collinsia grandiflora Jeffrey D. Prouty 1979-4-11 223 Sonoma Ca. 7 mi n of Santa Rosa. Grassy slope ca. 100 yds w of Mark West Springs Rd. ca. 300 yds n of jctn. with Michelle Way. 164 Comment
  UC103393  Collinsia sparsiflora var. arvensis Michener and Bioletti Apr 1893 Sonoma Kenwood Comment
  JEPS7308  Collinsia tinctoria Milo S. Baker 1904-6-19 Sonoma Sonoma Cr. Canyon Comment
  UC1238979  Collinsia tinctoria Freed W. Hoffman 1948-8-2 2356 Sonoma Spring Mountain Road to St. Helena near summit St. Helena; North Coast Ranges, Spring Mountain Road 609 Comment
  CAS-BOT-BC229544  Collomia diversifolia Peter Rubtzoff 1973-7-24 7201 Sonoma Upper Green Valley Marsh Comment
  CAS-BOT-BC229502  Collomia rawsoniana Walter Knight; Irja Knight; Tiffany Knight 1985-7-15 5144 Sonoma From garden of Knight, Petaluma Comment
  SEINET12332732  Collomia rawsoniana W. Knight, Knight, I.; Knight, T. 1985-1 5144 Sonoma Petaluma Comment
  UCD127300  Conium maculatum Kamala Crompton 1996-5-19 27 Sonoma Roadside near to Pine Grove in small gully, 6 miles west of Petaluma. 100 Comment
  SEINET4676260  Cordylanthus brunneus Lewis S. Rose 1955-7-11 55110 Sonoma 2 miles east of Occidental.; 0 244 Comment
  JEPS57383  Cordylanthus maritimus subsp. palustris L. R. Heckard and T. I. Chuang 1968-6-18 1954 Sonoma in coastal salt marsh along road to Bodega Head Comment
  UCD123109  Cordylanthus pilosus subsp. pilosus K. Esau 1932-8-28 s.n. Sonoma near Petrified Forest. Comment
  CAS-BOT-BC238227  Cordylanthus tenuis subsp. brunneus Francis W. Pennell 1940-7-3 26044 Sonoma Hoods Peak, n.e. of Kenwood 731 Comment
  CDA30951  Cordylanthus tenuis subsp. brunneus D. G. Kelch, Troy McGregor 2010-8-22 10 .353 Sonoma Nr Peak of Geyser Peak Rd. 0 Comment
  OBI9577  Cordylanthus tenuis subsp. capillaris Robert F. Hoover 1965-1 Sonoma Comment
  UC1239008  Cordylanthus tenuis subsp. capillaris Freed W. Hoffman 1947-9-5 1251 Sonoma between Tyrone and Camp Meeker; North Coast Ranges, Dutch Bill Creek Comment
  CDA39435  Cordyline australis Tony Morosco, Adam Holbrook 2004-1-19 s.n. Sonoma Salt Point State Park, Deadman Gulch. From just north of Hwy 1 roadmarker 43 follow south fork of dirt road due east, in partial forest opening approx. 100 feet above stream. 0 Comment
  CAS-BOT-BC212286  Cornus glabrata Peter Rubtzoff 1952-5-31 1105 Sonoma Western branch of the Upper Marsh, Pitkin Marsh near Forestville Comment
  CAS-BOT-BC209880  Cornus nuttallii A. T. Graff 1922-5-1 s.n. Sonoma Cazadero Comment
  CAS-BOT-BC210431  Cornus sericea G. DeNevers 1981-5-2 907 Sonoma Pepperwood Ranch. Confluence of Leslie Creek and Mark West Creek Comment
  RSA800124  Cornus sericea Peter Rubtzoff 1970-8-31 7290 Sonoma Upper Green Valley Marsh, slope of Green Valley Road bank bordering the marsh. Comment
  CAS-BOT-BC210473  Cornus sericea subsp. occidentalis A. A. Heller 1902-7-1 5796 Sonoma Lagoon at Sebastopol Comment
  CAS-BOT-BC180191  Corylus cornuta subsp. californica Walter Knight; Irja Knight 1964-2-16 527 Sonoma Mill Creek Road Comment
  SEINET12031412  Corylus cornuta var. californica F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -259 Sonoma ca 10 mi from Warm Springs Dam enroute to Healdsburg & US 101 on Old Stewart Point-Skaggs Springs Rd 150 Comment
  CAS-BOT-BC143501  Cotoneaster pannosus Mary P. Wells 1989-2-13 975 Sonoma At curve of Montecito Ave. opposite Manzanita Ave., Rincon Ridge, Santa Rosa Comment
  CAS-BOT-BC290301  Cotula coronopifolia Greg de Nevers; Frank Almeda 1987-4-11 8151 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Road, Santa Rosa 400 Comment
  CAS-BOT-BC173690  Cotula coronopifolia Peter Rubtzoff 1970-10-29 6419 Sonoma Dune pond near U.C. Bodega Marine Laboratory. Comment
  CAS-BOT-BC427647  Crassula aquatica Greg de Nevers 1992-7-21 10221 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. 457 Comment
  UCD55334  Crassula aquatica Ellen Dean 2006-6-28 3178 Sonoma Town of Kenwood. East side of Hwy. 12. Kunde Vineyards. Edges of Pepperwood Reservoir. 150 Comment
  CAS-BOT-BC427655  Crassula aquatica Peter Rubtzoff 1972-4-23 6729 Sonoma 4.25 mi. west of Glen Ellen on Bennett Valley Road. Comment
  CAS-BOT-BC427659  Crassula aquatica Peter Rubtzoff 1969-6-14 6074 Sonoma 6.5 mi. northeast of Penngrove, on Lichau Road 426 Comment
  UCD101816  Crassula solieri Reid Moran; Chas. Quibell 1991-5-15 31053 Sonoma Sonoma Valley Regional Park, 1 km E of Glen Ellen (Rt. 12, 0.5 km S of Arnold Drive.) 110 Comment
  UCD35659  Crataegus gaylussacia Beecher Crampton 1959-6-16 5396 Sonoma 1 mile northeast of Freestone. Comment
Read comments
Dec 20 2006
  CAS-BOT-BC173648  Crepis Peter Rubtzoff 1960-6-7 4450 Sonoma Austin Creek Marsh. Comment
  CAS-BOT-BC290542  Crepis capillaris Robert M. King 1980-7-8 8410 Sonoma Vicinity of Bodega Bay Comment
  UC1561762  Crupina vulgaris Liam Davis 1990-5-17 9078 -3 Sonoma about 200 m s Lake Llsanjo (along e side of Canyon Trail); Annadel State Park 243 Comment
  CAS-BOT-BC190108  Crypsis schoenoides Peter Rubtzoff 1971-9-30 6707 Sonoma Laguna, Chileno Valley. Comment
  SEINET11687825  Crypsis schoenoides W. Knight, Knight, I.; Knight, T. 1986-1 5519 Sonoma Old Adobe Road toward E Washington St, 0.5 mi from the old adobe Comment
  CAS-BOT-BC190180  Crypsis vaginiflora Peter Rubtzoff 1958-8-16 3869 Sonoma Laguna de Santa Rosa north of Sebastapol (near Occidental Road). Comment
  UCD119057  Cryptantha ambigua Collector unknown 1932-7-7 s.n. Sonoma Calistoga, near Petrified Forest. Comment
  UC336281  Cryptantha flaccida Hy. Edwards May 1877 331 Sonoma Knights Valley Comment
  UC79410  Cryptantha flaccida Dr. Edward Palmer Sonoma Sonoma Comment
  UC857111  Cryptantha flaccida Milo S. Baker 1936-1-1 8607 Sonoma Sulphur Creek Canyon Highway, near mouth of canyon Sulphur Creek Canyon Comment
  UC908734  Cryptantha muricata Milo S. Baker 1947-5-7 11735 Sonoma near base of Sugar Loaf (sw slope of Hood Mt.); Hood Mt. 365 Comment
  CAS-BOT-BC80747  Cupressus macnabiana C. B. Wolf; E. R. Johnson 1934-10-18 6198 Sonoma Head of Hooker Canyon, 4 7/10 mi. E. of Sonoma-Kenwood Road 548 Comment
  SEINET10531470  Cupressus macnabiana Carl B. Wolf, E. R. Johnson 1934-10-18 Wolf 2154 Sonoma Head of Hooker Canyon, 4 7/10 mi E of Sonoma-Kenwood Road. Upper sonoran:- Chaparral. Sun. Open ridge in porous gray volcanic rock. 550 Comment
  CAS-BOT-BC85455  Cupressus sargentii Elizabeth McClintock 1967-9-10 4 Sonoma Ida Clayton Road on west side of Mount St. Helena Comment
  CAS-BOT-BC85475  Cupressus sargentii Roxana Stinchfield Ferris; L. Lorraine 1961-6-15 13565 Sonoma Harrison Grade, 1.3 mi. from junction with Green Valley Road Comment
  RSA396199  Cupressus sargentii F. H. Utech, Walter, Irja Knight 1984-4-18 84 -166 Sonoma 0.2 mi W on Harrison Grade Road from junction with Stoetz Lane. 146 Comment
  UCD164605  Cuscuta campestris Peter Rubtzoff 1975-9-28 8414 Sonoma Russian River bank at Forest Hills, 5.5 miles east of Guerneville. Comment
  CDA41304  Cuscuta howelliana G. F. Hrusa, A. Buckman (DFG) 1996-10-5 13583 Sonoma North Coast Biodiversity Arena; Summit of Mayacmas Range at W end of Diamond Mtn. Rd. +- 2 m. SW of Calistoga. Sheet 2 of 3. Comment
  SEINET12330328  Cuscuta salina W. Knight, Knight, I. 1985-1 5177 Sonoma Lower Tubbs Island about 1/4 mile from San Pablo Bay 0 Comment
  UCD60066  Cynodon dactylon Beecher Crampton 1964-8-18 7140 Sonoma Northeast Sonoma County: 'The Geysers'. Comment
  CAS-BOT-BC190435  Cynosurus echinatus Mary P. Wells 1984-5-24 268 Sonoma Annadel State Park Santa Rosa. Comment
  SD88320  Cynosurus echinatus D. F. Howe 1972-6-28 Sonoma 4.5 miles north of Jenner 121 Comment
  UC1102750  Cynosurus echinatus A. R. Kruckeberg 1947-6-14 1502 Sonoma on hiway 28 ca 2 mi w Maacamas Creek bridge (w end of Knights Valley); Knights Valley, w of Maacamas Creek bridge Comment
  UCD160902  Cynosurus echinatus James A. Neilson Jr.; Teresa A. Sholars 1975-6-26 3582 Sonoma Section 10, ca. 1.5 miles west of The Geysers Resort. (Exact location unknown. Elevation and coordinates estimated by label maker.) 396 Comment
  UCD60154  Cynosurus echinatus Freed W. Hoffman 1941-6-3 s. n. Sonoma Near Guerneville. Comment
  UCSC000023  Cynosurus echinatus F. W. Hoffman 1941-6-3 s.n. Sonoma Roadside, near Guerneville Comment
  CAS-BOT-BC114518  Cyperus eragrostis Walter Knight; Irja Knight 1963-9-29 228 Sonoma In ditch on Lakeville hwy near freeway. Comment
  UC728611  Cyperus niger Milo S. Baker 1945-6-18 11118 Sonoma lower Meadow Pitkin Marsh Comment
  CAS-BOT-BC113907  Cyperus niger var. capitatus John Thomas Howell 1945-8-14 21412 Sonoma Perry marsh Comment
  CAS-BOT-BC113915  Cyperus niger var. capitatus Peter Rubtzoff 1955-9-10 2136 Sonoma East Guernewood, near Guerneville. On a Russian River island. Comment
  CAS-BOT-BC435191  Cypselea humifusa Peter Rubtzoff 1966-9-25 5827 Sonoma Laguna de Santa Rosa east of Graton, betw. Occidental and Guerneville roads. Comment
  UC399279  Cystopteris fragilis Michener and Bioletti Apr. 1893 5 Sonoma Adobe Canyon Comment
  CAS-BOT-BC201021  Cytisus scoparius Greg de Nevers 1992-6-26 10207 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Along Franz Creek 91 Comment
  CAS-BOT-BC189801  Dactylis glomerata Peter Rubtzoff 1962-6-19 4926 Sonoma Occidental Marsh. Comment
  RSA0022473  Dactylis glomerata Peter Rubtzoff 1968-7-13 5921 Sonoma Upper Salmon Creek Marsh. Comment
  JEPS73354  Damasonium californicum Edward Lee with Joe Ewan and Annetta Carter 1934-4-30 760 Sonoma 1 mi. w. Two Rock junction Comment
  RSA216130  Damasonium californicum Peter Rubtzoff 1961-5-24 4606 Sonoma Upper Stemple Creek Marsh. Comment
  UC1100146  Damasonium californicum Malcolm A. Nobs and S. Galen Smith 1949-7-29 921 Sonoma w. of Santa Rosa (on rd. to Sebastopol, The Laguna) Comment
  CAS-BOT-BC192264  Danthonia californica Walter Knight; Irja Knight; J. T. Howell 1987-5-27 6273 Sonoma Todd Road Preserve 24 Comment
  CAS-BOT-BC192269  Danthonia californica Peter Rubtzoff 1951-6-17 267 Sonoma Eastern branch of the Upper Marsh Comment
  UC1131385  Danthonia californica H. S. Yates 1937-5-30 6540 Sonoma 1 1/2 mi sse Graton; Sebastopol Quadrangle Comment
  UCD60982  Danthonia californica Mary M. Hektner; Cathy Hendel and Sue Dakuzaku 1974-6-21 43 Sonoma Unit 2 Owners' Map, Sea Ranch, near State Hwy. 1. Comment
  UCD61014  Danthonia californica R. Tofsrud 1948-5-9 Sonoma Old Santa Rosa cemetery, Santa Rosa. Comment
  UCR279609  Danthonia californica Peter Rubtzoff 1959-5-30 4072 Sonoma Freestone Marsh 79 Comment
  SACT000895  Danthonia californica M. Wiesendanger 1927-5-5 Sonoma Comment
  RSA126872  Danthonia californica var. americana H. S. Yates 1937-5-30 6541 Sonoma 1.5 miles northeast of Graton 30 Comment
  UCD60685  Danthonia californica var. americana P. B. Kennedy 1914-10-1 s.n. Sonoma Del Mar Ranch. Comment
  UC76181  Datura stramonium Miss M. Alice King May, 1897 Sonoma near Healdsburg (Dry Creek); Dry Creek Comment
  UCR279632  Datura stramonium Peter Rubtzoff 1968-9-21 5986 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville 13 Comment
  JEPS128203  Daucus pusillus Roger Raiche 2000-4-30 051 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  POM133425  Daucus pusillus A. A. Heller, H. E. Brown 1902-5-27 5610 Sonoma Bodega Bay Comment
  UCD126489  Daucus pusillus Frederica Bowcutt 1984-6-23 454 Sonoma Salt Point State Park. Approx. 20 miles N of Jenner and 80 miles S of Fort Bragg on the Sonoma County Coast. West of Highway 1, about 1/2 mile north of Gerstle Cove. 15 Comment
  UC353900  Daucus pusillus Milo S. Baker 1927-5-7 2122 a Sonoma slope above house at Maple Glen Comment
  RSA800286  Deinandra corymbosa Peter Rubtzoff 1955-9-9 2121 Sonoma Bodega Head Marsh. Comment
  CAS-BOT-BC9606  Delphinium bakeri Eleanor Lohman 1921-4-1 3175 Sonoma Coleman Valley Comment
  CAS-BOT-BC9015  Delphinium decorum A. A. Heller; H. E. Brown 1902-4-11 5266 Sonoma Bodega Bay Comment
  CAS-BOT-BC9017  Delphinium decorum John Thomas Howell 1931-4-18 6413 Sonoma Larkspur Rock near Bodega Bay Comment
  CAS-BOT-BC9022  Delphinium decorum M. Hallet 1927-4-1 s.n. Sonoma Graton Comment
  CAS-BOT-BC9025  Delphinium decorum Milo S. Baker 1926-4-14 186 a Sonoma Bodega Bay Comment
  UCSB1971  Delphinium hesperium Dearing, Hugh; Dearing, Margaret 1933-5-14 Sonoma Cloverdale Hopland Grade Comment
  UC1031404  Delphinium hesperium subsp. hesperium C. Epling, L. Stebbins, and H. Lewis 1943-6-17 Sonoma rock outcrops about 2 mi e Bodega Bay Comment
  SBBG2150  Delphinium hesperium subsp. hesperium H. and M. Dearing 1933-5-14 384 Sonoma Cloverdale, Hopland grade Comment
  CAS-BOT-BC10100  Delphinium luteum John Thomas Howell 1931-4-18 6415 Sonoma Larkspur Rock, near Bodega Bay Comment
  UC1126021  Delphinium luteum H. S. Yates 1934-4-21 3798 Sonoma near Bodega; Sebastopol Quadrangle Comment
Read comments
Sep 30 2007
  UC854139  Delphinium luteum L. S. Rose 1939-5-14 39120 Sonoma 1 mi. E of Bodega Bay, Sonoma Co. Comment
  CAS-BOT-BC9899  Delphinium nudicaule Mary Hallett 1925-3-1 s.n. Sonoma Graton Comment
  UCD95873  Delphinium nudicaule Erik Beever; Patti Togioka and Valerie Bullock 1993-5-8 235 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Along Pony Gate Trail. 304 Comment
  UCSB31448  Delphinium nudicaule Townsend, J. 1977-5-29 Sonoma West side U.S. 101; 2 miles north of Petaluma Comment
  CAS-BOT-BC7763  Delphinium variegatum subsp. variegatum Milo S. Baker 1928-4-10 2987 a Sonoma Bennett Val. Comment
  CDA23056  Dendromecon rigida D. G. Kelch, A. G. Murdock, Ben Carter 2007-5-13 7 .266 Sonoma Cavedale Rd. Comment
  RSA177978  Dendromecon rigida Robert F. Thorne 1965-4-19 34305 Sonoma W. of Stoetz Road off of Harrison Grade, ca. 2 miles NNE of Occidental. 183 Comment
  SJSU448  Dendromecon rigida H. H. Anderson 1939-5-15 Sonoma Mt St Helena Comment
  UC1126379  Dendromecon rigida J. B. Spring 1932-7-7 96 Sonoma 2/5 mi sw Veeder Mountain; Napa Quadrangle 609 Comment
  SEINET5339603  Dendromecon rigida K. Brandegee 94 Sonoma Mt. St. Helena, North Coast Ranges, on slopes back of the Toll House. Comment
  UCD61230  Deschampsia cespitosa R. Tofsrud 1948-6-1 Sonoma By Mark West School. Comment
  CAS-BOT-BC192611  Deschampsia cespitosa subsp. holciformis David D. Keck 1944-7-12 5514 Sonoma 1 mile S. of bridge across mouth of Russian River Comment
  CDA34803  Deschampsia danthonioides Peter Warner 2010-5-6 147 Sonoma Annadel State Park, in upland vernal pool ~250 m N of Canyon Trail, ~220 m W of Spring Creek, just S of old rock wall. Comment
  CAS-BOT-BC201962  Deschampsia elongata Peter Rubtzoff 1962-10-9 s.n. Sonoma Russian River Mouth Marsh Comment
  OBI22307  Deschampsia elongata Lewis S. Rose 1962-6-1 62064 Sonoma 1 mi NW of Freestone 76 Comment
  RSA784398  Deschampsia elongata Peter Rubtzoff 1962-6-13 4902 Sonoma Freestone Marsh. Comment
  UCR282049  Deschampsia elongata Peter Rubtzoff 1964-6-24 5373 Sonoma Lower Salmon Creek Marsh 6 Comment
  UCR27417  Dichanthelium acuminatum subsp. thermale John C. Roos, L. Roos 1956-9-1 6598 Sonoma North Coast Range, The Geysers 549 Comment
  SEINET10662587 Image available Dichanthelium acuminatum var. acuminatum Henry N. Bolander 1860-1 Bolander 3941 Sonoma Geysers. Comment
  SEINET12058504  Dichelostemma capitatum F. H. Utech 1995-3-26 95 -50 Sonoma WNW of Lake Sonoma, junction Kelly Road & Rockpile Road Comment
  SEINET12050380  Dichelostemma capitatum F. H. Utech 1988-1 88 -195 Sonoma ca 1.5 mi E of CA 1 on Willow Creek Road, Willow Creek marsh & adjoining meadows 10 Comment
  CAS-BOT-BC502551  Dichelostemma congestum Alice Eastwood 1921-5-8 10437 Sonoma Petaluma Comment
  CAS-BOT-BC152041  Diplacus aurantiacus Alice S. M. McKenzie 1981-2-23 17 Sonoma Fort Ross Road about _mi. above Calif. State Hwy. 1 near wide place at San Andreas fault - Coast between Russian and Gualala Rivers Comment
  CAS-BOT-BC151880  Diplacus congdonii Milo S. Baker 1927-4-12 2073 a Sonoma S.E. slope Hood's Peak 335 Comment
  CAS-BOT-BC151753  Diplacus kelloggii Greg de Nevers 1993-5-17 10455 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, in Devil's Kitchen east of 3865 Franz Valley Rd. 457 Comment
  SEINET12326112  Dipsacus fullonum W. Knight, Knight, I. 1983-1 4710 Sonoma Calistoga Road 3 mi from State Rt 12, 300 yards N of summit 152 Comment
  UCD137487  Dipsacus sativus J. D. Skoss 1948-7-25 40 Sonoma Shellville. Comment
  UC998321  Dirca occidentalis Milo S. Baker 1942-5-20 10197 Sonoma two mi w Bodega town (on a road which turns right within the town) Comment
  CAS-BOT-BC182763  Distichlis spicata Peter Rubtzoff 1962-7-14 5000 Sonoma Lower Salmon Creek Marsh. Comment
  UC483301  Dodecatheon hendersonii Ira L. Wiggins 1932-3-12 5759 Sonoma between Knight's Valley and Franz Valley; between Knight's Valley and Franz Valley Comment
  UCD118839  Dodecatheon hendersonii Frederica Bowcutt; Kate Mawdsley 1996-3-24 2091 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. About 1 1/2 air miles W of Mount Saint John, along Brushy Peaks Trail just S of Malm Fork of Sonoma Creek. 426 Comment
  SD88563  Dodecatheon hendersonii Darley F. Howe 1972-2-20 4804 Sonoma Mt. Hood Range Comment
  CAS-BOT-BC154160  Downingia concolor var. concolor Peter Rubtzoff 1974-5-18 7439 Sonoma Todd Road, 1.4 mi. from Hwy. 116 and 0.6 mi. from Llano Road. Comment
  JEPS19382  Downingia concolor var. concolor G. Thomas Robbins 1937-5-23 179 Sonoma near Wright School (along road between Sebastopol and Santa Rosa) Comment
  RSA783713  Downingia concolor var. concolor Peter Rubtzoff 1969-5-11 6039 Sonoma Laguna de Santa Rosa NE of Graton, at end of Piner Road Comment
  CAS-BOT-BC154141  Downingia pusilla Peter Rubtzoff 1972-5-14 6741 Sonoma 4.25 mi. W of Glen Ellen on Bennett Valley Road. Comment
  CAS-BOT-BC164682  Downingia pusilla Peter Rubtzoff; H. A. Froebe 1971-5-30 6494 Sonoma 4.25 mi. W of Glen Ellen on Bennett Valley Road. Comment
  JEPS14377  Downingia pusilla Milo S. Baker 1934-4-10 7774 Sonoma 2 mi s Warfield R.R. sta. (n side of highway) Comment
  UC567049  Drymocallis glandulosa var. wrangelliana H. S. Yates 1934-4-21 3755 Sonoma near Bodega; Sebastopol Quadrangle Comment
  UCD136430  Dryopteris arguta Frederica Bowcutt; Jolie Henricks, Jeff Kennedy 1994-5-1 1754 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco; about 10 air miles E of Santa Rosa; about 1.5 air miles N of Kenwood; about 18 air miles NW of Napa. In Adobe Canyon along Goodspeed Trail approx. 200 yds. From just E of Bear Creek about 5 yds. N of confluence with Sonoma Creek. 198 Comment
  RSA120869  Dryopteris arguta Milo S. Baker 1898-2-19 715 Sonoma Hills NE of Santa Rosa Comment
  CAS-BOT-BC411378  Dudleya caespitosa Peter Rubtzoff 1952-6-10 1245 Sonoma Resort at E base of Fitch Mtn., near Healdsburg Comment
  SEINET12216915  Dudleya cymosa F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -207 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd, between Jimtown & Mercuryville 800 Comment
  SEINET1909911  Dysphania botrys Barbara Ertter 1988-1 8029 Sonoma Lake Sonoma ca 5 airmiles due S of Cloverdale, point below Little Flat parking area W of bridge 152 Comment
  UCD98779  Dysphania chilensis H. S. Reed 1948-10-21 2025 Sonoma Sonoma Creek, near Kenwood. Comment
  RSA785442  Echinochloa Peter Rubtzoff 1976-8-29 8834 Sonoma Russian River at Forest Hills, 5.5 mi east of Guerneville. Comment
  UCD164211  Echinochloa Peter Rubtzoff 1978-9-10 9264 Sonoma Russian River at Del Rio Beach, ca. 2.5 miles east of Healdsburg on South Fitch Mountain Road. Comment
  UCD164337  Echinochloa Peter Rubtzoff 1976-8-29 8834 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  UCD148392  Echinochloa crus-galli Peter Rubtzoff 1956-9-15 2901 Sonoma Atascadero Creek Marsh. Comment
  UCR74391  Ehrharta calycina Peter G. Connors 1991-5-22 107 Sonoma Bodega Head, Bodega Bay. Bay Flat Road, near Clark Marsh Comment
  RSA227243  Elatine heterandra Peter Rubtzoff 1964-7-14 5400 Sonoma Bennett Mtn. Lake Comment
  RSA800156  Eleocharis Peter Rubtzoff 1970-8-18 6313 Sonoma 5 mi N of Sears Point. Comment
  UC1055948  Eleocharis acicularis Francia Chisaki, Peter Kamb 1950-6-16 1865 Sonoma 1 mi N of Sousa Corners (NW from Sebastopol, Pitkin Marsh) Comment
  CAS-BOT-BC113734  Eleocharis acicularis var. occidentalis Peter Rubtzoff 1951-7-22 531 Sonoma Pitkin Marsh, near Forestville. Uppermost part of the western branch of the Upper Marsh. Comment
  CAS-BOT-BC113739  Eleocharis acicularis var. occidentalis Peter Rubtzoff 1951-7-21 499 Sonoma Pitkin Marsh, near Forestville. Northern half of Lower Marsh. Comment
  CAS-BOT-BC113733  Eleocharis acicularis var. occidentalis Peter Rubtzoff 1955-7-30 2002 Sonoma Bennett Mtn. Lake. Comment
  CAS-BOT-BC112980  Eleocharis macrostachya Catherine Best 1981-8-22 s.n. Sonoma At the pond about 2 miles morth of Occidental on Stoetz Lane Comment
  CAS-BOT-BC112195  Eleocharis radicans Peter Rubtzoff 1951-9-2 702 Sonoma Pitkin Marsh, near Forestville: Southern half of Lower Marsh Comment
  CAS-BOT-BC112200  Eleocharis radicans Peter Rubtzoff 1965-8-22 5619 Sonoma Russian River margin at Forest Hills (5.5 mi E of Guerneville). Comment
  UCD165112  Eleocharis rostellata Peter Rubtzoff 1973-9-9 7321 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC451543  Elodea canadensis Peter Rubtzoff 1987-9-27 9860 Sonoma Russian River at Forest Hills, ca. 6 miles east of Guerneville. Comment
  OBI35896  Elymus elymoides David J. Keil 1983-6-30 17211 Sonoma Stillwater Cove Regional Park Comment
  CAS-BOT-BC203728  Elymus glaucus subsp. glaucus Milo S. Baker 1945-5-15 10919 Sonoma 4 mi W of Santa Rosa near Wright's School Comment
  CAS-BOT-BC203706  Elymus glaucus subsp. glaucus K. Wagnon 1939-5-20 209 Sonoma Along road by Santa Rosa Airport Comment
  UC1146609  Elymus glaucus subsp. jepsonii Freed W. Hoffman 1942-6-30 2118 Sonoma Lone Mountain Farm North Coast Ranges (near Guerneville) Comment
  RSA129555  Elymus glaucus subsp. virescens H. S. Yates 1936-5-17 5624 Sonoma 1.5 miles E of Bodega Port 122 Comment
  CAS-BOT-BC162054  Elymus lanceolatus subsp. lanceolatus R. D. Stone 1983-6-14 543 Sonoma Headwaters of Squaw Creek drainage near ridgeline, ca. 1.2 mile northwest of Geyser Rock. 1021 Comment
  UC188891  Elymus multisetus J. Burtt Davy and W. C. Blasdale 1899-7-22 6007 Sonoma Austin Creek Comment
  JEPS87224  Emmenanthe penduliflora Jack and Betty Guggolz 1992-5-17 1299 Sonoma On the up side of the Anderson Trail (The west side of the Black Mountain east of Geyserville). 585 Comment
  UCD167418  Epilobium campestre Peter Rubtzoff 1962-6-21 4940 Sonoma Laguna de Santa Rosa NE of Graton, E of Laguna Road. Comment
  CAS-BOT-BC171946  Epilobium canum subsp. latifolium Clare R. Wheeler 1985-9-8 3766 Sonoma On large boulders above Russian River, 1.6 km N of Preston Bridge 103 Comment
  CAS-BOT-BC262950  Epilobium ciliatum subsp. watsonii Peter Rubtzoff 1954-8-10 1681 Sonoma Bodega Head Marsh. Comment
  CAS-BOT-BC268081  Epilobium ciliatum subsp. watsonii Peter Rubtzoff 1954-6-6 1462 Sonoma Guerneville Marsh. Comment
  RSA800038  Epilobium ciliatum subsp. watsonii Peter Rubtzoff 1967-8-28 5867 Sonoma Lower Salmon Creek Marsh. Comment
  UC873152  Epilobium densiflorum Lewis S. Rose 1938-9-11 38252 Sonoma dry ditch Bloomfield 30 Comment
  UCD106302  Epilobium densiflorum Peter Rubtzoff 1951-8-4 576 Sonoma Pitkin Marsh, near Forestville. Comment
  CAS-BOT-BC262786  Epilobium hallianum Peter Rubtzoff 1959-5-30 4058 Sonoma Freestone Marsh, ca. 1 mile northwest of Freestone. Comment
  CAS-BOT-BC262798  Epilobium hallianum Peter Rubtzoff 1962-5-25 4843 Sonoma Atascadero Creek Marsh. Comment
  RSA155508  Epilobium hallianum L. S. Rose 1962-6-1 62060 Sonoma 1 miles NW of Freestone Marsh 76 Comment
  UCD167358  Epipactis gigantea James Neilson 1982-6-12 4080 Sonoma Mayacmas Mountains. Near Castle Rock Springs Camp. (Exact location unknown. Coordinates estimated by label maker.) Comment
  SEINET12078270  Epipactis gigantea Unknown 1986-1 60215 Sonoma N of Cazadero, The Cedars, headwaters Big Austin Creek, near Laton Mine 244 Comment
  CAS-BOT-BC173542  Equisetum Peter Rubtzoff 1973-8-21 7253 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  UCD165777  Equisetum Peter Rubtzoff 1973-8-29 7285 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  UCD165107  Equisetum Peter Rubtzoff 1973-9-8 7302 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC57127  Equisetum X ferrissii Mary P. Wells 1984-7-20 389 Sonoma East bank South Fork Gualala River, opp. the Hot Spot, the Sea Ranch Comment
  CAS-BOT-BC57047  Equisetum arvense Peter Rubtzoff 1958-4-26 3601 Sonoma Laguna de Santa Rosa east of Sebastopol Comment
  UC1010445  Equisetum arvense Milo S. Baker 1939-4-2 9268 Sonoma stream in front of Mrs. Morton's place Kenwood Comment
  CAS-BOT-BC57208  Equisetum hyemale subsp. affine Mary P. Wells 1981-7-1 s.n. Sonoma Goat Rock State Beach Comment
  RSA0045168  Equisetum hyemale subsp. affine Greg de Nevers 1993-5-16 10447 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road. Along Franz Creek east of 3865 Franz Valley Rd. 91 Comment
  UC211449  Equisetum hyemale subsp. affine Michener and Bioletti Mar, 1893 Sonoma Hood's Peak Comment
  CAS-BOT-BC57211  Equisetum hyemale subsp. affine John Thomas Howell 1931-9-26 8088 Sonoma Creek bottom at Northwood near Monte Rio on the Russian River Comment
  RSA784474  Equisetum laevigatum Peter Rubtzoff 1959-8-22 4230 Sonoma South Fork Eel River in Edward R. Hickey State Park. Comment
  RSA784475  Equisetum laevigatum Peter Rubtzoff 1961-8-26 4725 Sonoma Vacation Beach, near Guerneville. Banks of Russian River. Comment
  CAS-BOT-BC57643  Equisetum telmateia Walter Knight; Irja Knight 1963-9-15 383 Sonoma Los Alamos Rd. Comment
  CAS-BOT-BC57654  Equisetum telmateia J. W. Congdon 1880-4-13 s.n. Sonoma Santa Rosa Road Comment
  RSA216125  Equisetum telmateia var. braunii Peter Rubtzoff 1954-6-6 1468 Sonoma Guerneville Marsh. Comment
  RSA796174  Eragrostis cilianensis Peter Rubtzoff 1958-8-30 3930 Sonoma Vacation Beach, near Guerneville. Open, wet banks of Russian River. Comment
  SEINET10807148  Eragrostis curvula P. Rubtzoff 1971-8-23 Rubtzoff 6653 Sonoma Meacham Road, 0.35 miles S of Stony Point Road Comment
  UCD148327  Eragrostis mexicana subsp. virescens Peter Rubtzoff 1954-7-3 1517 Sonoma Vacation Beach, near Guerneville. Comment
  UCD63537  Eragrostis mexicana subsp. virescens Freed W. Hoffman 1943-9-14 2166 Sonoma Near Guerneville. Comment
  UCD64315  Eragrostis pectinacea Beecher Crampton 1953-11-18 1736 Sonoma 10 miles northwest of Calistoga, along State Highway 128. Comment
  CAS-BOT-BC284191  Eragrostis pectinacea var. pectinacea David Morgan 1960-6-1 s.n. Sonoma Denman Flats 3 mi. s. of Cotati on road to Petaluma Comment
  POM232057  Erechtites minimus Roxana S. Ferris 1937-8-18 9377 Sonoma Near mouth of Salmon Creek on Bodega Bay. Comment
  CAS-BOT-BC131609  Ericameria arborescens Walter Knight; Irja Knight 1963-9-1 133 Sonoma Harold Smith Ranch on Pine Mt. Rd NE of Cloverdale Comment
  UC194498  Ericameria arborescens Edw. L. Greene 1888-9-1 Sonoma Petrified Forest Comment
  CAS-BOT-BC376395  Erigeron Greg de Nevers 1994-6-13 10526 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Along Franz Creek. 400 Comment
  UCD132089  Erigeron Jackie Sinkey; Rene Westbrook 1976-4-14 s.n. Sonoma Bodega Head. Comment
  JEPS41425  Erigeron biolettii F. Bioletti 1893-6-1 Sonoma Hoods Peak Comment
  UCD131758  Erigeron canadensis Charles B. Heiser Jr. 1946-8-17 1830 Sonoma Russian River, near Duncan Mills. Comment
  UC1299251 Image available Erigeron serpentinus Freed W. Hoffman 1947-5-30 558 Sonoma Layton Mine North Coast Ranges, Austin Creek Comment
  CAS-BOT-BC300305  Erigeron supplex Mary P. Wells 1984-7-6 357 A Sonoma Site of North Fire Station. The Sea Ranch Comment
  CAS-BOT-BC224151  Eriodictyon californicum Peter Rubtzoff 1952-6-3 1169 Sonoma South slopes of Fitch Mtn., near Healdsburg Comment
  SEINET12327812  Eriodictyon californicum F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -075 Sonoma ca 4 mi NNW of Sonoma on Cavedale Road from junction with CA 12 107 Comment
  CAS-BOT-BC259252  Eriogonum latifolium W. R. Dudley 1893-9-9 s.n. Sonoma Near mouth of Russian River Comment
  SD22296  Eriogonum latifolium John Thomas Howell 1930-7-27 5414 Sonoma Marine bluff, 4 miles north of Bodega Bay Comment
  CAS-BOT-BC259478  Eriogonum luteolum John Thomas Howell 1932-9-18 10786 Sonoma Field bordering Sonoma Creek where it enters the level of Sonoma Valley Comment
  CAS-BOT-BC259482  Eriogonum luteolum Helen D. Geis 1902-8-1 s.n. Sonoma Russian River, near Cloverdale Comment
  CAS-BOT-BC261685  Eriogonum nudum var. nudum F. G. Krauss 1893-10-8 s.n. Sonoma K. Ranch Comment
  UC6383  Eriogonum nudum var. nudum Alice King May 1897 Sonoma Healdsburg Comment
  CAS-BOT-BC262334  Eriogonum vimineum R. D. Stone; G. Clifton 1983-6-16 552 Sonoma At the Little Geysers, upper Big Sulphur Creek drainage 701 Comment
  UCD131466  Eriophyllum confertiflorum var. confertiflorum Frederica Bowcutt 1994-6-25 1919 Sonoma Sugarloaf Ridge State ParkAbout 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. Brushy Peak Trail about 1/4 mi. from Gray Pine Trail. 670 Comment
  CDA5241  Eriophyllum lanatum S. Quick 1996-5-1 7 Sonoma Along Road 32, within 50 meters of the U.C. Reserve access road leading to Stebbins Cold Canyon Reserve. Comment
  CAS-BOT-BC301159  Eriophyllum lanatum var. achilleoides D. E. Breedlove 1980-6-27 44749 Sonoma Pepperwood Ranch W of Knights Valley Comment
  CDA5240  Eriophyllum lanatum var. achilleoides T. C. Fuller 1958-5-24 4000 Sonoma Vinehill District. 0 Comment
  UC494084  Eriophyllum lanatum var. achilleoides H. E. and S. T. Parks 1930-5-10 0 -837 Sonoma Knights Valley Comment
  CAS-BOT-BC301153  Eriophyllum lanatum var. achilleoides L. Constance 1933-5-20 E 25 Sonoma Between Santa Rosa & Healdsburg, 3 1/2 m. from Healdsburg Comment
  CAS-BOT-BC301154  Eriophyllum lanatum var. achilleoides Greg de Nevers 1981-5-9 1111 Sonoma Pepperwood Ranch Comment
  CAS-BOT-BC301288  Eriophyllum lanatum var. arachnoideum H. L. Mason 1934-4-28 8096 Sonoma Jensen Ranch, at head of Dohrman Creek, four miles west of Healdsburg Comment
  POM66821  Eriophyllum lanatum var. arachnoideum Marcus E. Jones 1882-7-17 2773 Sonoma Duncan[s] Mills. Comment
Read comments
Jun 19 2012
  RSA603483  Eriophyllum lanatum var. arachnoideum Jens Clausen 1935-5-24 1086 Sonoma 5.1 miles S of Jenner, on the Bodega Road. Comment
  SEINET7075546  Eriophyllum lanatum var. arachnoideum A. G. Vestal 1955-5-6 s.n. Sonoma About 2.5 miles east of Occidental on the Occidental Road. 38? deg. 24' 30" North Latitude, -122? deg. 54' 3" West Longitude. UTM Zone 10, 508655mE, 4250919mN. (NAD 27)]. [Coordinate Datum: WGS84/NAD83]. Comment
  UCD132259  Eriophyllum staechadifolium Mary M. Hektner; Cathy Hendel, Sue Dakuzaku 1974-6-19 36 A Sonoma Sea Ranch, near State Highway 1, Unit 24 Owners' Map. 0 Comment
  RSA655455  Eriophyllum staechadifolium Beecher Crampton 1955-6-17 2972 Sonoma State Hwy. 1, 4 miles south of Fort Ross Comment
  UCD38478  Eriophyllum staechadifolium Beecher Crampton 1955-6-17 2972 Sonoma State Hwy. 1, 4 miles south of Fort Ross. Bluffs above the sea. Comment
  CAS-BOT-BC290704  Erodium Peter Rubtzoff 1974-5-18 7436 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  CDA32952  Erodium botrys D. Barbe & P. Hiatt 1979-5-1 Sonoma South of Asti; on Asti Road, 0.45 mile south of Washington School Road. 0 Comment
  CDA34792  Erodium botrys Peter Warner 2010-3-29 119 Sonoma 1670 Bloomfield Road, ~ 3 km south of the center of Sebastopol. Comment
  UCD103021  Erodium botrys Frederica Bowcutt; Kate Mawdsley 1996-3-24 2071 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. About 1 air mile south of Red Mountian, just south of Sonoma Creek. 365 Comment
  UCD103117  Erodium brachycarpum Frederica Bowcutt 1994-6-24 1887 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. Lower Bald Mountain Trail. 426 Comment
  UCSB50218  Erodium cicutarium Gray, John 1976-5-1 Sonoma Bluff above Blind Beach; along the Sonoma County coast; T7N RllW 60 Comment
  RSA139172  Erodium moschatum A. A. Heller, H. E. Brown 1902-3-26 s.n. Sonoma Santa Rosa Creek. Comment
  UCR224675  Eryngium aristulatum var. aristulatum Ayzik Solomeshch 2009-5-12 s.n. Sonoma Along Bennett Valley Road, between Santa Rosa and Glen Ellen 189 Comment
  RSA290418  Eryngium aristulatum var. aristulatum Yusuf Sheikh, Peter Rubtzoff 1971-7-20 504 Sonoma Drying vernal pool along Todd Road, open country NW of Cotati Comment
  CAS-BOT-BC474708  Eryngium armatum Ayzik Solomeshch 2009-5-14 s.n. Sonoma 2.3 km SE of city of Sebastopol. Santa Rosa Plain, Cooper Site, pool 1 22 Comment
  JEPS17460  Eryngium armatum W. L. Jepson 1931-7-19 15946 Sonoma sea bluffs Salmon Creek Comment
  POM132680  Eryngium armatum A. D. E. Elmer 1903-07 4776 Sonoma Petaluma. Comment
  SBBG5184  Eryngium armatum H. and M. Dearing 1939-5-14 3355 Sonoma bluffs above the sea, Bodega State Park [Bodega Dunes State Beach] Comment
  SD88504  Eryngium armatum Darley F. Howe 1972-6-27 Sonoma Near Pitkin Marsh. Comment
  UC202767  Eryngium armatum A. D. E. Elmer July, 1903 4776 Sonoma Petaluma Comment
  UCD127468  Eryngium constancei G. F. Hrusa 1997-7-5 14010 Sonoma approximately 200 meters west of Highway 128 in drainage of Blossom Creek, 2km. northwest of Tubbs Lane int. 200 Comment
Read comments
Dec 30 2014
  CAS-BOT-BC54764  Erysimum franciscanum Catherine Best 1981-5-2 s.n. Sonoma South side of the mouth of the Russian RIver. Comment
  SEINET14046357 Image available Erythranthe guttata Noel H. Holmgren, Liew Fah Seong 1969-1 3606 Sonoma Calif. 1, 7.2 miles north of Marin County line. Comment
  SEINET8255128  Erythranthe microphylla Unknown 1940-5-21 25883 Sonoma Route 28. 183 Comment
  CAS-BOT-BC383058  Erythranthe nasuta David B. Lowry 2005-5-10 CMF Sonoma Camp Meeker Falls, between Camp Meeker and Monte Rio near Bohemian Highway 104 Comment
  SEINET9633973 Image available Erythronium californicum Fred W. Hoffman 1947-4-20 1866 Sonoma Near Mercury, Geysers to Healdsburg. Comment
  UC70419  Erythronium californicum Milo S. Baker 1898-4-6 13 Sonoma Gualala River Comment
  CAS-BOT-BC133295  Erythronium helenae Walter Knight; Irja Knight; Dr. Steve Edwards 1986-3-24 5256 Sonoma Between Mercuryville and Geysers Resort jct. Comment
  CAS-BOT-BC403695  Eschscholzia californica J. Clausen 1935-5-24 1096 Sonoma 6.5 mi. S. of Jenner, on the Bodega road Comment
  UC1084359  Eschscholzia californica G. Thomas Robbins 1937-3-26 21 Sonoma along hwy just w Bodega Comment
  UC1299665  Eschscholzia californica Freed W. Hoffman 1947-6-4 530 Sonoma Red Slide North Coast Ranges, East Austin Creek (headwaters of creek) Comment
  UCR45080  Eschscholzia californica L. F. LaPre 1986-7-29 s.n. Sonoma Socrates Mine, c. 9 mi ENE of Geyserville 976 Comment
  SEINET12193812  Eucalyptus camaldulensis W. Knight, Knight, I.; Howell, J. T. 1984-1 5072 Sonoma intersection Petaluma Ave & Arnold Dr., El Verano Comment
  UCD103207  Eucalyptus globulus Frederica Bowcutt 1997-7-18 2185 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Just south of midpoint between Mt. Hood and Red Mountain. Road on ridge West of Bear Ck. 365 Comment
  SD58446  Euonymus occidentalis M. E. Ferguson, Van E. Ferguson 8-10 Jun 1919 249 Sonoma Between Guerneville and Monte Rio. Comment
  JEPS117124  Euphorbia oblongata Peter Warner 2010-5-6 142 Sonoma Annadel State Park, North Burma Trail, ~500 m W of junction with Richardson Trail; along trail and downslope Comment
  UCR218738  Euphorbia oblongata George K. Helmkamp, E. A. Helmkamp 2010-6-4 16226 Sonoma North Coast Ranges, Mark West Springs Road (Porter Creek Rd.), 6.4 rd. miles east of its junction with US-101, 5.9 air mi. east (88 deg. ) of Windsor 155 Comment
  CAS-BOT-BC368064  Euphorbia spathulata Greg de Nevers 1998-5-26 11262 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Near Murry Gate 400 Comment
  CAS-BOT-BC368004  Euthamia occidentalis Greg de Nevers 1989-8-28 9096 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. At Skovie. 400 Comment
  UCR255940  Euthamia occidentalis Peter Rubtzoff 1960-9-17 4560 Sonoma Laguna de Santa Rosa east of Graton, between Occidentalis and Guerneville roads 27 Comment
  CAS-BOT-BC459232  Euthamia occidentalis Walter Knight; Keith Wagnon 1987-8-28 6106 Sonoma Along Willow Brook north of Petaluma Comment
  RSA155644  Euthamia occidentalis L. S. Rose 1960-9-14 60094 Sonoma Laguna de Santa Rosa, 2 miles east of Grafton 15 Comment
  CAS-BOT-BC239726  Fabaceae Peter Rubtzoff 1974-6-2 7503 Sonoma Upper Green Valley Marsh Comment
  UCR249335  Festuca arundinacea Peter Rubtzoff 1962-5-25 4838 Sonoma Laguna de Santa Rosa area, northeast of Gratton, near the Laguna Road 30 Comment
  UC573938  Festuca californica H. S. Yates 1934-4-21 3831 Sonoma 2 mi n County Farm; Santa Rosa Quad. 243 Comment
  CAS-BOT-BC283185  Festuca californica subsp. californica G. DeNevers 1981-4-27 882 Sonoma West arm of Garrison Canyon, Pepperwood Ranch Comment
  UC1011029  Festuca elmeri Virginia Bufford 1936-5-20 315 Sonoma 5 mi from Mark West (Mark West Rd) Comment
  RSA121313  Festuca idahoensis H. S. Yates 1937-5-31 6568 Sonoma Alpine School. 305 Comment
  CAS-BOT-BC278886  Festuca occidentalis Roxana S. Ferris; Laura Lorraine 1961-6-14 13534 Sonoma Joy Road grade, 1.8 mi. from junction with Bodega Highway Comment
  UC573696  Festuca occidentalis H. S. Yates 1936-5-16 5610 Sonoma 1 mi nw Mountain View; Sebastopol Quad. 91 Comment
  CAS-BOT-BC279076  Festuca rubra D. E. Breedlove 1980-6-28 44795 Sonoma Pepperwood Ranch W of Knights Valley Comment
  JEPS46056  Fragaria chiloensis Eleanor Armstrong 1933-4-15 762 Sonoma Bodega, on beach near Austin Creek 6 Comment
  CAS-BOT-BC457577  Fragaria vesca subsp. californica Mary P. Wells 1985-4-11 470 Sonoma west of ridge, off end of Pilot's Reach, The Sea Ranch Comment
  CAS-BOT-BC457581  Fragaria vesca subsp. californica Volney Rattan 1885-5-9 s.n. Sonoma Unspecified Comment
  UCD160880  Frangula californica James A. Neilson Jr.; Teresa A. Sholars 1975-6-26 3274 Sonoma Mayacmas Mountains, ca. 1/4 mile south of Caldwell Pines, ca. 3 1/2 miles west of Whispering Pines, northeast Sonoma County. (Elevation and coordinates estimated by label maker.) 975 Comment
  CAS-BOT-BC223363  Fraxinus John H. Thomas 1955-5-22 5183 Sonoma Along St. Helena Road and West Creek, 1.2 miles west of Sonoma-Napa County line, about 6 miles from St. Helena 457 Comment
  UCD122078  Fraxinus latifolia Lewis S. Rose 1968-6-25 68117 Sonoma Rincon Valley, Brush Creek. NE of Santa Rosa. 121 Comment
  UC3652  Fritillaria affinis M. L. Dinglass 1898-3-1 Sonoma Glen Ellen Comment
  CAS-BOT-BC130359  Fritillaria liliacea Anita Noldeke 1940-4-1 s.n. Sonoma Near Sebastopol Comment
  UCD121660  Galium aparine Jennifer Bury; Peggy Herzog 1993-5-8 267 Sonoma Sugarloaf Ridge State Park. About 40 air miles N of San Francisco; about 11 air miles E of Santa Rosa and 2.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge and S of Red Mtn 1 mile. Near visitor center. About 100 ft. above parking lot. 402 Comment
  UCD160757  Galium californicum James A. Neilson Jr. 1975-5-23 3214 Sonoma Truit Creek on Big Sulphur Creek. (Elevation and coordinates estimated by label maker.) 388 Comment
  SBBG29176  Galium divaricatum M. S. Baker 1947-5-12 11768 Sonoma SW slope of Hood Mt along horse trail from Gray Ranch 441 Comment
  JEPS52831  Galium muricatum Lauramay T. Dempster and G. L. Stebbins 1963-10-26 3944 Sonoma 12.2 mi e Stewart's Point (on road to Geyserville) 91 Comment
  RSA178028  Galium nuttallii Robert F. Thorne 1965-4-19 34284 Sonoma Near county dump on Stoetz Road off of Harrison Grade ca. 2 miles NNE of Occidental. 183 Comment
  UCD121863  Galium parisiense Frederica Bowcutt 1997-7-18 2181 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Just south of midpoint between Mt. Hood and Red Mountain. Road on ridge West of Bear Ck. 365 Comment
  UCD121945  Galium triflorum Frederica Bowcutt 1984-6-23 428 Sonoma Salt Point State Park. Approx. 20 miles N of Jenner and 80 miles S of Fort Bragg on the Sonoma County coast. Immed. SW of park entrance, W of Hwy 1 and NW of Gerstle Cove along park road. 30 Comment
  CAS-BOT-BC304343  Gamochaeta pensylvanica Greg de Nevers 1993-5-30 10463 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Rd 457 Comment
  UCR255027  Gamochaeta pensylvanica Greg de Nevers 1993-5-30 10463 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC303497  Gamochaeta ustulata G. DeNevers 1981-4-23 784 Sonoma Pippindale farm, Clarence Wright land at Garrison fence, ridgetop, along Hansel's fenceline Comment
  CAS-BOT-BC303504  Gamochaeta ustulata 1877-1-1 s.n. Sonoma Guerneville Comment
  CAS-BOT-BC303505  Gamochaeta ustulata J. H. Thomas 1976-6-16 18274 Sonoma Southern part of Sea Ranch, NW part of county, about 7 miles S of Gualala 30 Comment
  CAS-BOT-BC182166  Garrya fremontii Walter Knight; Irja Knight 1963-9-1 149 Sonoma Pint Mt Rd - NE of Cloverdale, Harold Smith Ranch Comment
  JEPS23940  Garrya fremontii Milo S. Baker 1946-2-9 11263 Sonoma Hope Valley Kenwood Region (near Chamberlain Place) Comment
  CAS-BOT-BC278690  Gastridium phleoides Peter Rubtzoff 1959-9-19 4280 Sonoma Vacation Beach, near Guerneville Comment
  UC903743  Gastridium ventricosum Milo S. Baker 1947-5-5 11727 Sonoma s slope Hood Mt. (above Baker ranch); s slope of Hood Mt. 213 Comment
  SBBG5536  Gaultheria shallon H. and M. Dearing 1939-5-15 3389 Sonoma N of Fort Ross Comment
  UCD117454  Gaultheria shallon Mary M. Hektner; Cathy Hendel, Sue Dakuzaku 1974-6-21 045 Sonoma Unit 2 Owners' Map, Sea Ranch, near State Highway 1. Comment
  UCSB4791  Gaultheria shallon Keator, Glenn 1959-4-1 Sonoma 1.5 miles north of Fort Ross Monument on Highway 1 Comment
  RSA0089559  Genista monspessulana Ann Howald 2015-4-1 3328 Sonoma North Coast Ranges: Stewarts Point-Skaggs Springs Rd, 16.5 miles west of intersection with Rockpile Rd, Wolf Creek drainage. 318 Comment
  RSA98558  Gentiana sceptrum G. Thomas Robbins 1938-6-23 268 Sonoma On Pitkin Ranch, Vine Hill region, ca. ten miles west of Santa Rosa. Comment
  CAS-BOT-BC293761  Geraniaceae Peter Rubtzoff 1969-6-14 s.n. Sonoma Vernal pool, 6.5 miles northeast of Penngrove on Lichan Road. Comment
  SD56708  Geranium core-core Darley F. Howe 1963-8-1 3654 Sonoma 2.2 miles north of Jenner on #1 Comment
  UCD103339  Geranium dissectum Mary M. Hektner 1974-5-27 5 Sonoma South of Whalers' Reach, Unit 7, Sea Ranch, near State Highway 1. Comment
  CDA34813  Geranium dissectum Peter Warner 2010-3-29 178 Sonoma 1670 Bloomfield Road, ~ 3 km south of the center of Sebastopol. Comment
  RSA0028534  Geranium dissectum Robert F. Thorne 1965-4-19 34261 Sonoma Cotati, Waters Ranch 30 Comment
  SEINET12183370  Geranium dissectum W. Irja, Knight, T. 1984-1 5037 Sonoma around Royal Oaks Mobile-home Park on N McDowell Blvd., Petaluna Comment
  UCD15829  Geranium dissectum J. D. DiTomaso 1998-5-18 s.n. Sonoma Sugarloaf Ridge State Park. 430 Comment
  UC867472  Geranium molle Milo S. Baker 1935-5-12 8037 Sonoma 1 mi e Bodega Bay (near highway at Larkspur Rock) Comment
  RSA144719  Gilia capitata Roxana S. Ferris, Laura Lorraine 1961-6-15 13569 Sonoma About 1/8 mile beyond County Dump Comment
  CAS-BOT-BC225279  Gilia capitata subsp. chamissonis Peter Rubtzoff 1960-5-18 4384 Sonoma Bodega Harbor Marsh Comment
  CAS-BOT-BC225286  Gilia capitata subsp. chamissonis Alice Eastwood 1915-6-29 4824 Sonoma Bodega Point Comment
  UCD117974  Gilia tricolor subsp. tricolor Botany 102 Students 1993-5-8 215 Sonoma Sugarloaf Ridge State Park, about 50 air miles north of San Francisco, 10 air miles east of Santa Rosa, 2.5 air miles NE of Kenwood, and 18 air miles NW of Napa. Along Meadow Creek. 396 Comment
  UCD117975  Gilia tricolor subsp. tricolor Frederica Bowcutt; Adam Green 1994-5-21 1799 Sonoma Sugarloaf Ridge State Park, about 50 air miles north of San Francisco, about 10 air miles east of Santa Rosa, about 1.5 air miles north of Kenwood, about 18 air miles NW of Napa. Along meadow trail approx. 0.25 mile from trailhead. 396 Comment
  SEINET10906071  Githopsis specularioides Frederic T. Bioletti 1892-5-15 Bioletti s.n. Sonoma Comment
  CAS-BOT-BC227642  Glyceria Peter Rubtzoff 1964-6-24 5382 Sonoma Coleman Marsh. Comment
  CAS-BOT-BC227663  Glyceria Peter Rubtzoff; Nancy Harrison 1978-5-20 9181 Sonoma Cunningham Marsh area., on north side of Blucher Creek Valley. Comment
  CAS-BOT-BC227664  Glyceria Peter Rubtzoff 1964-5-30 5324 Sonoma Santa Rosa Creek area about 1 mile east of the Laguna de Santa Rosa. Comment
  RSA786490  Glyceria declinata Peter Rubtzoff 1964-5-30 5324 Sonoma Santa Rosa Creek area about 1 mi E of the Laguna de Santa Rosa. Comment
  RSA786493  Glyceria declinata Peter Rubtzoff 1966-5-7 5707 Sonoma North side of Hessel Road, just west of Hwy 116. Comment
  CAS-BOT-BC282729  Glyceria elata Peter Rubtzoff 1951-6-10 204 Sonoma South of the Upper Marsh, Pitkin Marsh near Forestville Comment
  CAS-BOT-BC282732  Glyceria elata Peter Rubtzoff 1960-5-22 4414 Sonoma Laguna de Santa Rosa area east of Graton between Occidental and Guwerneville Roads Comment
  CAS-BOT-BC282818  Glyceria leptostachya John Thomas Howell 1947-6-5 23230 Sonoma Cunningham Marsh Comment
  RSA227240  Glyceria leptostachya Peter Rubtzoff 1962-5-30 4850 Sonoma Freestone Marsh. Comment
  UCR244735  Glyceria occidentalis Peter Rubtzoff 1966-4-30 5687 Sonoma North side of Hwy 116, 0.5 miles northwest of Stony Point Road crossing Comment
  CAS-BOT-BC290690  Gnaphalium Peter Rubtzoff 1987-10-17 9875 Sonoma Russian River ca. 6 miles east of Guerneville. Comment
  CAS-BOT-BC164700  Gnaphalium Peter Rubtzoff 1966-8-29 5815 Sonoma Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC176150  Gnaphalium chilense Peter Rubtzoff 1961-8-24 s.n. Sonoma Fife Creek Marsh. Comment
  CAS-BOT-BC302693  Gnaphalium palustre Peter Rubtzoff 1976-5-30 8567 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC302694  Gnaphalium palustre Peter Rubtzoff 1958-9-6 3984 Sonoma Laguna de Santa Rosa, east of Sebastopol. Comment
  CDA6005  Gnaphalium purpureum T. C. Fuller 1958-5-24 3985 Sonoma Pitkin Marsh, near Forestville. 0 Comment
  CDA6007  Gnaphalium purpureum G. D. Barbe 1982-5-27 3626 Sonoma 3.6 miles east of Stewarts Point (Highway 1) on Scaggs Spring Road. Comment
  CAS-BOT-BC261652  Gratiola Peter Rubtzoff; H. A. Froebe 1971-5-30 6495 Sonoma Vernal pool, 4.25 miles west of Glen Ellen on Bennett Valley Road. Comment
  RSA800602  Gratiola Peter Rubtzoff 1974-5-11 7387 Sonoma Todd Road, 1.4 mi from Hwy 116 and 0.6 mi from Llano Road. Comment
  UCD166172  Gratiola Peter Rubtzoff 1969-6-14 6083 Sonoma Vernal pool, 6.5 miles northeast of Penngrove on Lichau Road. 426 Comment
  CAS-BOT-BC164095  Grindelia Peter Rubtzoff 1963-7-14 5205 Sonoma Laguna de Santa Rosa, E of Graton. Comment
  UCR280127  Grindelia camporum Peter Rubtzoff 1964-7-7 5392 Sonoma Laguna de Santa Rosa, east of Graton 23 Comment
  CAS-BOT-BC305166  Grindelia hirsutula Walter Knight; Irja Knight 1963-9-1 315 Sonoma Asti Comment
  CAS-BOT-BC305177  Grindelia hirsutula John Thomas Howell 1930-6-8 5222 Sonoma 8 miles w. of Petaluma on Bodega Road Comment
  CAS-BOT-BC305181  Grindelia hirsutula J. T. Howell 1930-7-13 5338 Sonoma Black Point Road Comment
  UC473549  Grindelia hirsutula John Thomas Howell 1930-7-13 5338 Sonoma Black Point Road Comment
  CAS-BOT-BC302256  Harmonia nutans J. Clausen 1935-5-23 1073 Sonoma 0.3 mi. N. of entrance to Petrified Forest Comment
  CAS-BOT-BC306331  Hedypnois cretica Ella Dales Cantelow 1941-4-14 3509 Sonoma Mouth of Salmon Creek nr. ocean Comment
  CAS-BOT-BC306771  Helenium bigelovii John Thomas Howell 1945-5-30 s.n. Sonoma Pitkin Marsh Comment
  CAS-BOT-BC306765  Helenium bigelovii Milo S. Baker 1927-6-9 2217 b Sonoma About Kenwood Comment
  CAS-BOT-BC306861  Helenium bolanderi Paul F. Covel 1938-7-11 1429 Sonoma Coast Rd near Gualala River Comment
  CAS-BOT-BC314737  Helianthella californica var. californica L. R. Abrams 1916-7-4 5787 Sonoma Road between Petrified Forest and Mark West Comment
  UC754291  Helianthus bolanderi R. Bacigalupi 1948-3-6 2853 Sonoma The Geysers, just above the resort. Comment
  OBI77851  Helianthus gracilentus David J. Keil, with V. L. Holland, L. D. Oyler, G. F. Hrusa, G. L. Stebbins, et al. 1994-6-5 24503 Sonoma Along Cavedale Road ca. 1.5 miles from junction with Trinity Road, Mayacamus Mountains Comment
  SEINET1782495  Heliotropium oculatum A. A. Heller 1902-7-8 5813 Sonoma Russian river at Healdsburg. Comment
  UCD159448  Helminthotheca echioides D. S. Park; S. Nicole, M. Armijos, H. Sandhu 2010-8-3 205 Sonoma Near 'Big Hole' filled with freshwater. Wet. 10 Comment
  CAS-BOT-BC305967  Helminthotheca echioides Leonore Bravo 1982-9-12 s.n. Sonoma On road to Armstrong Grove, Guerneville Comment
  CAS-BOT-BC173587  Hemizonia Peter Rubtzoff 1969-5-11 6031 Sonoma Laguna de Santa Rosa, northeast of Graton, at end of Piner Road. Comment
  UCD165329  Hemizonia Peter Rubtzoff 1973-8-27 7260 Sonoma Upper Green Valley Marsh area. Comment
  UC89028  Hemizonia congesta Mrs. K. Curran 1888-6-1 Sonoma Verano Comment
  UC990601  Hemizonia congesta James I. McMurphy 1909-8-9 711 Sonoma between Sonoma and Petaluma; Sonoma Comment
  POM360350  Hemizonia congesta L. S. Rose 1935-9-11 35622 Sonoma 2 mi N of Healdsburg. 40 Comment
  RSA81606  Hemizonia congesta James I. McMurphy 1908-9-26 s.n. Sonoma Foothills E of Fulton. Comment
  RSA81625  Hemizonia congesta James I. McMurphy 1909-8-9 s.n. Sonoma 1 mile S of Sonoma. Comment
  RSA14739  Hemizonia congesta subsp. clevelandii L. S. Rose 1935-9-11 35622 Sonoma 2 mi N of Healdsburg. 40 Comment
  SD62035  Hemizonia congesta subsp. clevelandii Darley F. Howe 1965-8-14 Sonoma East of Santa Rosa. 120 Comment
  CAS-BOT-BC306222  Hemizonia congesta subsp. congesta Alice Eastwood; John Thomas Howell 1936-7-4 3822 Sonoma 2 miles n. of Windsor Comment
  CAS-BOT-BC306233  Hemizonia congesta subsp. congesta A. A. Heller 1902-6-4 5637 Sonoma Santa Rosa Comment
  CAS-BOT-BC306234  Hemizonia congesta subsp. congesta A. A. Heller 1902-6-4 5637 Sonoma Santa Rosa Comment
  UC1042317  Hemizonia congesta subsp. congesta John Thomas Howell 1945-8-14 21408 Sonoma Perry Marsh Comment
  UC990616  Hemizonia congesta subsp. congesta James I. McMurphy Sonoma foothills e Fulton (pasture near stream) Comment
  CAS-BOT-BC306239  Hemizonia congesta subsp. congesta J. McMurphy 1909-8-9 708 Sonoma 1 mile south of Sonoma Comment
  UCD132987  Hemizonia congesta subsp. congesta Jack Guggolz; Betty Guggolz 1990-7-1 1081 Sonoma 0.35 mile up Duvall Creek from the Bohemian Highway; on the south side of creek. Comment
  UCSB15710  Hemizonia congesta subsp. congesta Breedlove, Dennis 1961-12-31 Sonoma 2.3 miles south of Russian River on State Highway 1 30 Comment
  CAS-BOT-BC309678  Hemizonia congesta subsp. lutescens James I. McMurphy 1909-8-9 714 Sonoma On road to Petaluma, 4-1/2 miles south of Santa Rosa Comment
  CAS-BOT-BC309695  Hemizonia congesta subsp. lutescens James I. McMurphy 1909-8-10 717 Sonoma About a mi. W of Santa Rosa on road to Fulton Comment
  CAS-BOT-BC309721  Hemizonia congesta subsp. lutescens J. Clausen 1932-9-20 719 Sonoma South of Santa Rosa Comment
  CAS-BOT-BC309730  Hemizonia congesta subsp. lutescens Milo S. Baker 1930-6-6 4158 a Sonoma Along Southern road from Sebastopol to Occidental Comment
  CAS-BOT-BC309946  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1964-8-26 64064 Sonoma 6.5 miles ne. of Penngrove 426 Comment
  OBI16224  Hemizonia congesta subsp. luzulifolia Robert F. Hoover 1966-7-17 9916 Sonoma Sausal crk N of Alexander Valley Comment
  SBBG32325  Hemizonia congesta subsp. luzulifolia L. S. Rose 1964-8-26 Sonoma 6.5 mi NE of Penngrove 426 Comment
  UCD158829  Hemizonia congesta subsp. luzulifolia James A. Neilson Jr.; Teresa A. Sholars 1974-12-26 2926 Sonoma The Geysers, Section 14. (Elevation and coordinates estimated by label maker.) 533 Comment
  CAS-BOT-BC309938  Hemizonia congesta subsp. luzulifolia Walter Knight; Irja Knight; J. T. H. 1984-9-26 5234 Sonoma 5.9 mi. up Cavedale Rd. Comment
  CAS-BOT-BC309951  Hemizonia congesta subsp. luzulifolia J. McMurphy 1909-5-29 s.n. Sonoma Grade, ridge S. of Geysers Comment
  POM181139  Hemizonia lutescens J. T. Howell 1930-7-27 5409 Sonoma 8 miles south of Fort Ross Comment
  RSA159434  Hemizonia lutescens James I. McMurphy 1909-8-8 701 -C Sonoma Leddy Station between Santa Rosa and Sebastopol. Comment
  RSA159435  Hemizonia lutescens James I. McMurphy 1909-8-8 701 -A Sonoma Leddy Station between Santa Rosa and Sebastopol. Comment
  RSA81620  Hemizonia lutescens James I. McMurphy 1909-7-10 504 Sonoma Rocky point 4 miles NW of Cloverdale on road to Boonville. Comment
  POM53601  Hemizonia luzulifolia A. A. Heller 1902-8-20 6054 Sonoma Lagoon at Scbastopol Comment
  UC990611  Hemizonia luzulifolia subsp. luzulifolia James I. McMurphy 1909-8-8 706 Sonoma Sonoma Comment
  RSA81596  Hemizonia multicaulis subsp. vernalis James I. McMurphy 1910-6-8 s.n. Sonoma Where road enters hills E of Petaluma. Comment
  OBI77797  Heracleum maximum David J. Keil 1983-6-29 17194 Sonoma 5 mi N of Bodega Bay along hwy 1 Comment
  UCD127530  Heracleum maximum Michelle Mahoney 1965-5-22 34 Sonoma On old Fire Road off Highway 116, Hacienda Park. 91 Comment
  UC1952124  Hesperolinon californicum Clint Kellner 2009-6-7 Sonoma Between approx. 2700 and 4500 ft West of Tolay Creek and approx. 7200 ft Westerly and a little North of Tolay Creek bridge beneath Hwy 121 91 Comment
  UC1212325  Hesperolinon clevelandii Helen K. Sharsmith 1947-5-30 3966 Sonoma s slope of mountain near Grant line; Inner North Coast Ranges, Hood Mountain 243 Comment
  UC1212428  Hesperolinon micranthum Herbert L. Mason 1946-7-4 12895 Sonoma 2 mi e Occidental (on Harrison Grade); Inner North Coast Ranges Comment
  CAS-BOT-BC361350  Hesperolinon spergulinum Greg de Nevers 1997-4-24 10960 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  JEPS82313  Hesperolinon spergulinum Roger Raiche 1983-7-5 30484 Sonoma Occassional. Northeast of Plantation relatively open slope facing northwest, Tin Barn Road (3.5 mi north from King Ridge Road). Comment
  UC66032  Hesperolinon spergulinum A. A. Heller 1902-6-24 5751 Sonoma near Santa Rosa Comment
  RSA264760  Heterocodon rariflorum Peter Rubtzoff 1963-5-26 5133 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC149830  Heteromeles arbutifolia Walter Knight; Irja Knight 1963-9-1 140 Sonoma Pine Mt. Rd - NE of Cloverdale, Harold Smith Ranch Comment
  CAS-BOT-BC251213  Heterotheca oregona Peter Rubtzoff 1953-11-1 1436 Sonoma Vacation Beach, near Guerneville. Comment
  CDA30978  Heterotheca oregona D. G. Kelch, Troy McGregor 2010-8-22 10 .36 Sonoma Geyser Peak Rd along Sulfur Creek nr historic bridge. Comment
  JEPS81179  Heterotheca oregona var. oregona Edward Lee with W. A. Setchell 1936-6-5 2172 Sonoma Bohemian Grove Comment
  CAS-BOT-BC311061  Heterotheca oregona var. oregona John Thomas Howell 1926-11-14 2252 Sonoma Between Rincon Valley and Santa Rosa Comment
  JEPS128257  Heterotheca oregona var. rudis Roger Raiche 2000-9-2 148 .00 Sonoma The Cedars. Rick's Gate. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC311161  Heterotheca sessiliflora subsp. bolanderi John Thomas Howell 1930-7-13 5342 Sonoma Black Point Road Comment
  CAS-BOT-BC420943  Heuchera micrantha var. diversifolia Mary P. Wells 1984-7-20 384 Sonoma Hot Spot, The Sea Ranch Comment
  JEPS23929  Heuchera micrantha var. diversifolia Volney Rattan 1877-1 Sonoma Guerneville Comment
  CAS-BOT-BC420944  Heuchera micrantha var. diversifolia G. DeNevers 1981-5-9 1083 Sonoma Pepper wood Ranch Comment
  POM253357  Heuchera pilosissima A. A. Heller 1938-5-14 s.n. Sonoma S end of Bodega Bay Comment
  RSA0063008  Heuchera pilosissima Ella Dales Cantelow 1938-5-7 2402 Sonoma 4.5 miles W of Bodega. Comment
  RSA0063040  Heuchera pilosissima H. C. Cantelow 1941-6-7 s.n. Sonoma Near Bodega Bay. On State Hwy 1. Comment
  CAS-BOT-BC319707  Hieracium albiflorum Catherine Best 1981-6-5 s.n. Sonoma Skaggs Springs Road 3 miles east of Stewart's Point Comment
  RSA0025690  Hierochloe occidentalis John F. Emmel 1989-12-3 1141 Sonoma 0.3 air mi WSW of Plantation, near NE boundary of Salt Point State Park. 183 Comment
  UCD105868  Hoita macrostachya Frederica Bowcutt 1994-6-24 1903 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Along Meadow Creek at seasonal creek crossing near trail head. 396 Comment
  CDA27097  Hoita orbicularis D. G. Kelch 1991-5-16 s.n. Sonoma Pitkin Marsh Comment
  CAS-BOT-BC227669  Holcus lanatus Peter Rubtzoff 1954-7-29 1605 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC280787  Holcus lanatus G. DeNevers 1981-6-20 1632 Sonoma Pepperwood Ranch. At the Dentist's Lake Comment
  POM114472  Holcus lanatus Marcus E. Jones 1882-7-18 3546 Sonoma Duncan's Mills. Comment
  POM205909  Holcus lanatus A. A. Heller 1902-6-7 5651 Sonoma Bennett Valley, southeast of Santa Rosa. Comment
  UCD84957  Holcus lanatus David L. Morgan 1958-8-6 s.n. Sonoma Just SE of Valley Ford city limits. Comment
  UCD84979  Holcus lanatus M. Wiesendanger 1927-5-5 722 Sonoma Sonoma County. Sonoma. Comment
  CAS-BOT-BC164699  Holocarpha Peter Rubtzoff 1970-5-30 6252 Sonoma 5 miles north of Sears Point. Comment
  CAS-BOT-BC152391  Holodiscus discolor var. discolor D. E. Breedlove 1980-6-27 44761 Sonoma Pepperwood Ranch W of Knights Valley Comment
  UCD158726  Holodiscus discolor var. discolor Teresa A. Sholars 1976-9-9 s.n. Sonoma Mayacmas Mtns.Along Big Sulpher Creek. Ca.1.5 mi southeast of the junction of Pine Flat Rd. and Socrates Mine Rd. Elevation estimated by label maker. 792 Comment
  CAS-BOT-BC166739  Holozonia filipes Peter Rubtzoff 1961-7-22 4661 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC315812  Holozonia filipes James I. McMurphy 1909-8-18 704 Sonoma Kenwood Comment
  RSA0060105  Holozonia filipes Greg de Nevers 1996-7-2 10854 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. On spillway of Dentist's Lake, and in creek below it. 91 Comment
  CAS-BOT-BC166677  Holozonia filipes Peter Rubtzoff 1971-7-20 6602 Sonoma Vernal pool, 4.25 miles west of Glen Ellen on Bennett Valley Road. Comment
  HSC90904  Holozonia filipes Rimo Bacigalupi, Peter Rubtzoff 1976-8-6 Sonoma Knights Valley; off S side of Bavarian Lion Company ranch road (between it and a creek), 1-1.5 mi. W of its junction with Franz Vally Rd. (0.4 mi. S of Hwy. 128) Comment
  RSA783726  Holozonia filipes Peter Rubtzoff 1971-7-9 6601 Sonoma 4.25 mi W of Glen Ellen on Bennett Valley Road. Comment
  UCD85380  Hordeum brachyantherum subsp. californicum Mary M. Hektner; Cathy Hendel, Sue Dakuzaku 1974-6-19 35 A Sonoma Sea Ranch, near State Highway 1, Unit 24 Owners' Map. 30 Comment
  CAS-BOT-BC285183  Hordeum marinum subsp. gussoneanum John Thomas Howell; Walter Knight; Irja Knight 1988-5-21 6226 Sonoma Todd Road Preserve 24 Comment
  CAS-BOT-BC285189  Hordeum marinum subsp. gussoneanum A. A. Heller 1902-6-4 5636 Sonoma Santa Rosa Comment
  CAS-BOT-BC285192  Hordeum marinum subsp. gussoneanum David L. Morgan 1956-5-13 s.n. Sonoma 2.5 miles west of Petaluma on the I Street extension road Comment
  CAS-BOT-BC285184  Hordeum marinum subsp. gussoneanum Barrett Anderson 1987-4-27 3463 Sonoma Petaluma, south of El Rose and west of D Street 120 Comment
  UCD86247  Hordeum murinum subsp. leporinum Gerry North 1993-4 2 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood, and 18 air miles NW of Napa. At Goodspeed trailhead pullout. On bank edge above Sonoma Creek. 213 Comment
  RSA128792  Hordeum vulgare P. H. Raven 1950-4-6 1556 Sonoma Cotati to Santa Rosa. 30 Comment
  UCD113401  Horkelia californica Mary M. Hektner; Cathy Hendel, Sue Dakuzaku 1974-6-24 055 Sonoma Unit 1 Owners' Map, Sea Ranch, near State Highway 1. Comment
  UCD160917  Horkelia californica James A. Neilson Jr. 1975-7-8 3379 Sonoma Mayacmas Mountains. Three hundred yards north of Little Geysers. (Exact location unknown. Coordinates and elevation estimated by label maker.) 731 Comment
  UC424868  Horkelia californica subsp. dissita Milo S. Baker 1930-5-31 4150 Sonoma e Heldsburg (beyond Brattie's); Russian River Comment
  CAS-BOT-BC536169  Horkelia californica var. elata A. A. Heller 1902-6-27 5783 Sonoma West of Windsor ner Russian River Comment
  UC70428  Horkelia tenuiloba Milo S. Baker may 1899 Sonoma near the Laguna (Forest Hill Rd); Forestville Comment
  JEPS40568  Horkelia tenuiloba E. Crum 1931-5-1 1091 Sonoma near Sebastopol School Comment
  SBBG119671  Hosackia gracilis G. F. Pratt, C. Pierce 2003-5-15 Sonoma Salt Point State Park 30 Comment
  UCD106021  Hosackia gracilis P. B. Kennedy 1915-5-28 s.n. Sonoma Northern part of county, Del Mar. Comment
  CAS-BOT-BC540829  Hypericum Peter Rubtzoff 1974-6-9 7583 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC400995  Hypericum anagalloides Peter Rubtzoff 1951-7-1 329 Sonoma Pitkin Marsh, near Forestville. Lower part of the Upper Marsh Comment
  UC1301036  Hypochaeris radicata Helen K. Sharsmith 1963-5-25 5482 Sonoma on road from Freestone to Occidental; San Francisco Bay Region 121 Comment
  CAS-BOT-BC316710  Hypochaeris radicata Greg de Nevers 1981-5-23 1302 Sonoma Top of Devils Kitchen Hill, Pepperwood Ranch Comment
  SEINET12050753  Iris douglasiana F. H. Utech 1988-1 88 -183 Sonoma 0.15 mi SE from East Avenue junction with Bohemian Road on latter 140 Comment
  SEINET3875269  Iris douglasiana Janet McIntosh 1966-4-27 24 Sonoma Ca. 1000 feet from shore; State Highway 1, 5 miles North of Jenner, Sonoma County, California.; 0 Comment
  RSA135876  Iris fernaldii Lee W. Lenz, E. K. Balls 1951-5-3 16408 Sonoma Between Kellogg and Alexander Valley, Maacama (Miyakama) Creek, 2 miles from turn-off to Geyserville from Petrified Forest 610 Comment
  RSA135931  Iris macrosiphon E. K. Balls, Lee W. Lenz 1951-5-10 16535 Sonoma 0.3 miles south of Mendocino-Sonoma Co. line on Hwy 28. Comment
  CAS-BOT-BC182769  Isoetes Peter Rubtzoff 1971-6-5 6514 Sonoma Dry bed of vernal pool, 4.25 miles west of Glen Ellen on Bennett Valley Road. Comment
  UC353915  Isoetes howellii Milo S. Baker 1927-5-8 2131 b Sonoma near summit of Bennett Valley Rd. Comment
  UCD84281  Isoetes howellii Ayzik Solomeshch 2009-5-12 s.n. Sonoma Along Bennett Valley Road (between Santa Rosa and Glen Ellen). 189 Comment
  CAS-BOT-BC368087  Isoetes howellii Greg de Nevers 1998-3-20 11220 Sonoma Cresta Ranch, Mark West Creek Comment
  CAS-BOT-BC112416  Isolepis carinata Peter Rubtzoff 1963-5-26 5140 Sonoma Bennett Mtn. Lake. Comment
  CAS-BOT-BC112572  Isolepis cernua Peter Rubtzoff 1954-8-10 1678 Sonoma Bodega Head Marsh. Comment
  UCD49897  Isolepis cernua Mary M. Hektner 1975-8-14 229 Sonoma Shell Beach, Unit 24 Owner's Map, Sea Ranch, near State Highway 1, Sonoma County, California. Comment
  CAS-BOT-BC164647  Juncus Peter Rubtzoff 1964-7-29 5457 Sonoma Duncans Mills Marsh. Comment
  CAS-BOT-BC322125  Juncus arcticus Peter Rubtzoff 1963-6-6 5170 Sonoma Laguna de Santa Rosa, east of Graton. Comment
  POM111209  Juncus bolanderi Marcus E. Jones 1882-7-17 s.n. Sonoma Duncan's Mills. Comment
  RSA368149  Juncus bolanderi Christopher Davidson 1977-6-20 6024 Sonoma Dry Creek Road, 11.9 miles W of Geyserville. Gravel bar in Warm Springs Creek. 137 Comment
  UCR222350  Juncus bufonius var. bufonius George K. Helmkamp, E. A. Helmkamp 2010-6-4 16234 Sonoma North Coast Ranges, Mark West Springs Road (Porter Creek Rd.), 9.8 rd. miles east of its junction with US-101, 4.5 air miles SW (250 deg. ) of Calistoga 280 Comment
  POM312828  Juncus dubius H. L. Mason 1946-7-4 12890 Sonoma Pitkin Marsh, between Santa Rosa and Forestville Comment
  RSA234552  Juncus dubius Peter Rubtzoff 1960-6-9 4490 Sonoma Laguna de Santa Rosa area NE of Graton, near the Laguna Road. Comment
  CAS-BOT-BC210059  Juncus effusus Peter Rubtzoff 1964-7-29 5454 Sonoma Duncans Mills Marsh. Comment
  UCD141504  Juncus effusus subsp. pacificus Frederica Bowcutt 1984-6-23 427 Sonoma Salt Point State Park. Approx. 20 miles N of Jenner and 80 miles S of Fort Bragg along the Sonoma County coast. Immediately SW of park entrance, West of Highway 1 and NW of Gerstle Cove along park road. 30 Comment
  CAS-BOT-BC164053  Juncus hesperius Peter Rubtzoff 1970-9-3 6374 Sonoma Sonoma: Marsh off west side of Highway 1, 0.7 miles southeast of Salmon Creek crossing Comment
  UCD166109  Juncus kelloggii Peter Rubtzoff 1972-4-23 6732 Sonoma Vernal pool, 4.25 mi. W of Glen Ellen on Bennett Valley Road. Comment
  CAS-BOT-BC290569  Juncus lescurii Peter Rubtzoff 1959-6-20 4179 Sonoma Willow Creek Marsh. Comment
  SEINET6744753 Image available Juncus lescurii S. Saufferer 1973-5-24 218 Sonoma Bodega Bay. Comment
  UCD67349  Juncus lescurii B. Rodeheaver 1973-5-12 43 Sonoma Bodega Head, W of Bodega Marine Lab dormitories. Near sand dunes. Comment
  JEPS67108  Juncus occidentalis W. L. Jepson 1921-6-2 9299 Sonoma w of Windsor Comment
  UC1133689  Juncus occidentalis H. S. Yates 1936-5-16 5586 Sonoma 2 mi se Forestville; Pitkin Marsh, Sebastopol Quad. 30 Comment
  CDA39262  Juncus phaeocephalus T. C. Fuller & D. L. Bristow 1957-12-17 s.n. Sonoma Horn Ave., south of Santa Rosa. 0 Comment
  JEPS67064  Juncus phaeocephalus var. paniculatus W. L. Jepson 1921-6-2 9304 Sonoma nw of Windsor (and just e of Calhoun ranch) Comment
  UCD38691  Juncus tenuis Beecher Crampton 1957-5-16 4041 Sonoma 3 miles south of Healdsburg, along US Hwy. 101. Comment
  RSA126570  Juncus xiphioides H. S. Yates 1936-5-16 5596 Sonoma 2 miles SE of Forestville 30 Comment
  UCD151192  Keckiella corymbosa James A. Neilson Jr. 1974-7-10 2824 Sonoma Mayacmas Mountains, west of Cobb Mountain, along road to PG and E geothermal units 9 and 10, eastern Sonoma County. (Elevation estimated using topo map by label maker.) 960 Comment
  UCR248901  Kickxia elatine Peter Rubtzoff 1971-8-9 6633 Sonoma North Coast Range, Laguna [Lake], Chileno Valley 69 Comment
  RSA0022381  Kickxia elatine Peter Rubtzoff 1971-8-9 6633 Sonoma Laguna, Chileno Valley. Comment
  RSA247442  Kickxia elatine Peter Rubtzoff 1959-6-20 4158 Sonoma Willow Creek Marsh. Willow Creek. Comment
  RSA0065154  Lactuca Greg de Nevers 1997-8-17 11076 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd, Santa Rosa. Oak Hill Ranch. 100 Comment
  UCD133518  Lactuca saligna Freed W. Hoffman 1946-8-23 797 Sonoma Lone Mountain Farm, near Guerneville. North Coast Range. Comment
  CAS-BOT-BC340657  Lactuca serriola Walter Knight; Irja Knight 1963-10-6 489 Sonoma Skillman Lane, Petaluma Comment
  CAS-BOT-BC341711  Lagophylla ramosissima James I. McMurphy 1909-7-10 503 Sonoma Hills near Cloverdale Comment
  CAS-BOT-BC274317  Lagurus ovatus Catherine Best 1984-6-11 973 B Sonoma At Goat Rock Park Comment
  CHSC79887  Lamarckia aurea Gordon Leppig 1998-5-6 1344 Sonoma Austin Creek State Recreation Area, Austin Creek Trail, UTM zone 10 4269N, 495E. 176 Comment
  HSC100870  Lapsana communis Peter Warner 2011-10-31 235 Sonoma Ranchero Mark West, 7125 St. Helena Rd., along dirt road/trail to Buzzards Roost (~600 m W of main residence), ~100 m N of 'Roost'. 281 Comment
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Jun 11 2015
  UCSC007232  Lasthenia Randall Morgan 2003-6-27 3992 Sonoma Colony on low coastal bluff halfway along Salt Pt. State Park, Sonoma Coast Comment
  CAS-BOT-BC324930  Lasthenia burkei Peter Rubtzoff 1966-4-17 5677 Sonoma Laguna de Santa Rosa east of Graton between Occidental and Guerneville Roads Comment
  RSA59636  Lasthenia californica Verne Grant, Alva Grant 1950-4-24 8875 Sonoma Summit of road between Santa Rosa and Calistoga in Hood Mt. Range. Comment
  JEPS15071  Lasthenia californica subsp. californica A. A. Heller and H. E. Brown 1902-4-15 Sonoma Santa Rosa Creek Comment
  UC978119  Lasthenia glaberrima L. Beane and Lois E. James 1949-5-16 1947 Sonoma ca. 3 mi s Healdsburg Comment
  CAS-BOT-BC355525  Lasthenia glaberrima Peter Rubtzoff 1968-6-20 5892 Sonoma 6.5 mi NE of Penngrove, on Lichun Road, 426 Comment
  POM53048  Lasthenia glaberrima Michener, Bioletti 1893-06 s.n. Sonoma Kenwood Comment
  UC2061430  Lasthenia gracilis Rachael L. Olliff Yang 2017-5-2 20 Sonoma Pepperwood Preserve, Double ponds area, about 200 m North of the road. Comment
  UC1028300  Lasthenia minor George B. Rossbach 1955-3-19 516 Sonoma sw end Bodega Head 30 Comment
  CAS-BOT-BC370891  Lasthenia minor D. H. Morey 1958-4-10 13331 Sonoma adjacent to Bodega Head Comment
  SD112563  Lasthenia minor subsp. maritima Darley F. Howe 1966-6-2 4259 Sonoma Coast,4.0 miles north of Bodega Bay on Highway 1. Comment
  CAS-BOT-BC164693  Lathyrus Peter Rubtzoff 1974-9-7 7862 Sonoma Hinebaugh Creek, Rohnert Park; west of Commerce Blvd. crossing. Comment
  UCD106212  Lathyrus cicera Christine Lee 1993-4-24 89 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. 411 Comment
  CHSC96769  Lathyrus hirsutus A. Stephens 2005-6-16 1293626 Sonoma North Coast Range. Sonoma County. Rangeland at 8617 Petaluma Hill Rd, Petaluma. Comment
  UCR255451  Lathyrus palustris Ann Howald 2014-5-16 3004 Sonoma North Coast, lowest coastal terrace, c. 1.5 mi southeast of Del Mar Point 21 Comment
  CDA27145  Lathyrus vestitus var. ochropetalus G. D. Barbe 1982-5-27 3622 Sonoma 3.6 miles east of Stewarts Point (Highway 1), on Skaggs Spring Road. 0 Comment
  UCR222530  Lathyrus vestitus var. ochropetalus George K. Helmkamp, E. A. Helmkamp 2010-6-5 16247 Sonoma North Coast Ranges, Vellutini Road, 1.3 miles northwest of its junction with Martinelli Road, 3.5 air mi. ESE (98 deg. ) of Guerneville 44 Comment
  UC15379  Lathyrus vestitus var. vestitus State Survey 1862-4-18 966 Sonoma near Sonoma Comment
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Jan 20 2011
  UC15384  Lathyrus vestitus var. vestitus W. H. Brewer 1862-4-18 966 Sonoma near Sonoma Comment
  UCD151309  Lathyrus vestitus var. vestitus James A. Neilson Jr. 1974-4-30 2722 Sonoma Mayacmas Mountains. The Geysers. Bruno # 1. (Exact location of Bruno #1 not known by label-maker, but according to Neilson, it is west of Geysers Resort on a north-facing slope near a stream. In the Mayacmas Flora, he indicates it is near 'Old Mercuryville,' which is different than the Mercuryville seen on maps; location and elevation estimated by label-maker) 441 Comment
  UC913069  Layia chrysanthemoides David D. Keck 1933-5-28 2320 Sonoma 3.4 mi e Shellville (just e of intersection of Sonoma Road) Comment
  CAS-BOT-BC323237  Layia chrysanthemoides John Thomas Howell 1931-4-1 6036 Sonoma 9 miles SW of Sonoma on road to San Rafael. Comment
  POM953187  Layia chrysanthemoides Ivar Tidestrom 1895-6-13 s.n. Sonoma [Unspecified] Comment
  SEINET3071642 Image available Layia chrysanthemoides subsp. maritima J. C. Clausen 1935-5-24 1090 Sonoma 6.2 mi. S. of Jenner Comment
  CAS-BOT-BC321738  Layia gaillardioides David D. Keck; J. Clausen 1935-6-15 3379 Sonoma Russian River, 3 mi above mouth. Comment
  CAS-BOT-BC379620  Layia platyglossa A. A. Heller 1903-4-23 6608 Sonoma Fort Ross Comment
  UC57867  Layia platyglossa A. A. Heller 1903-4-23 6608 Sonoma Fort Ross Comment
  POM53352  Layia platyglossa subsp. platyglossa A. A. Heller 1903-4-23 s.n. Sonoma Fort Ross Comment
  CAS-BOT-BC274363  Leersia oryzoides Peter Rubtzoff 1958-7-19 3762 Sonoma Laguna de Santa Rosa east of Sebastopol Comment
  CAS-BOT-BC274364  Leersia oryzoides Greg de Nevers 1995-10-1 10775 Sonoma Russian River near Mirabel Road 91 Comment
  CAS-BOT-BC266610  Legenere limosa Peter Rubtzoff 1969-5-24 6051 Sonoma 6.5 miles NE of Penngrove, on Lichau Road 426 Comment
  CAS-BOT-BC210094  Lemna Peter Rubtzoff 1965-10-10 5653 Sonoma Stony Point Marsh. Comment
  CAS-BOT-BC210095  Lemna Peter Rubtzoff 1974-4-6 7349 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC534368  Lemna minor Greg de Nevers 1992-6-26 10205 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road along Franz Creek 91 Comment
  UC1101272  Lemna minuscula Malcolm A. Nobs, S. Galen Smith 1949-8-1 1105 Sonoma 2 mi e of Stewart's Point (on road to Geyserville) Comment
  UCD166422  Lemna minuta Peter Rubtzoff 1965-11-9 5667 B Sonoma Laguna de Santa Rosa area, E of Graton (btwn. Occidental and Guerneville Roads). Comment
  CAS-BOT-BC527285  Lemna minuta Peter Rubtzoff 1964-9-3 5492 Sonoma Laguna de Santa Rosa area east of Cunningham near Llano Road Comment
  UCD132618  Leontodon saxatilis Frederica Bowcutt 1984-6-23 421 Sonoma Salt Point State Park. Approx. 20 miles N of Jenner and 80 miles E of Fort Bragg along the Sonoma County coast. Immed. N of Gerstle Cove. W of Hwy 1. 15 Comment
  CAS-BOT-BC215729  Lepechinia calycina Walter Knight; Irja Knight 1964-1-17 512 Sonoma Upper Hooker canyon, Cavedale Road Comment
  UCD161377  Lepechinia calycina James A. Neilson Jr. 1976-6-18 s.n. Sonoma Mayacmas Mountains. Crest of ridge between Squaw Creek and Big Sulphur Creek. (Elevation and exact location estimated by label maker.) 731 Comment
  CAS-BOT-BC89150  Lepidium didymum Walter Knight; Irja Knight 1963-8-13 173 Sonoma Horseshoe Cove. Comment
  CDA3806  Lepidium latifolium T. C. Fuller 1958-10-16 1480 -58 Sonoma North side Highway 48, 5 miles east of Sears Point. 0 Comment
  NY76571  Lepidium oxycarpum J. T. Howell 1933-4-1 10924 Sonoma Petaluma Comment
  UCD115834  Lepidium strictum Caitlin Lewis; William Mutch 1993-4-17 12 Sonoma About 40 air miles N of San Francisco, 11 air miles E of Santa Rosa, and 2.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge and S of Red Mtn. 1 mile. Near visitor center. 365 Comment
  RSA0057965  Leptochloa fascicularis Greg de Nevers 1997-9-22 11089 Sonoma Pepprwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Mark West Creek at Leslie Creek junction. 100 Comment
  CAS-BOT-BC273995  Leptochloa fusca subsp. fascicularis Catherine Best 1987-7-2 1291 Sonoma At the intersection of Todd and Llano Rds. Comment
  CAS-BOT-BC226701  Leptosiphon jepsonii D. E. Breedlove 1983-4-11 58684 Sonoma Pepperwood Ranch W of Knights Valley Comment
  UCD55069  Leptosiphon jepsonii Ellen Dean; Tammie Beyerl 2006-4-28 3013 Sonoma Town of Kenwood. East side of Hwy. 12. Kunde Vineyards. Vicinity of Pepperwood Lake Reservoir. 177 Comment
  JEPS128322  Leptosiphon parviflorus Roger Raiche 2000-3-26 012 .00 Sonoma The Cedars. Lower Russian, Big Austin Creek watershed. Comment
  JEPS117109  Leptosiphon parviflorus Peter Warner 2010-5-12 148 Sonoma Jenner Headlands, in saddle meadow along Willig Extension Drive (main dirt road on property), 2.06 km past barn; E side of road, S edge of grassland along forest ecotone; on divide between upper SE Russian Gulch and NW Jenner Gulch watersheds Comment
  JEPS87256  Lessingia arachnoidea Jack and Betty Guggolz 1992-8-29 1339 Sonoma about 2 1/4 mi nw of Camp Meeker 207 Comment
  JEPS20604  Lessingia hololeuca J. Burtt Davy 1897-9-18 4031 Sonoma between San Rafael and Petaluma Comment
  UC1287406  Lessingia hololeuca Willard Spence 1960-9-13 630 Sonoma 2 mi s Monte Rio (on road to Camp Meeker and Occidental) Comment
  UC33158  Lessingia hololeuca Edw. L. Greene 1888-1-1 Sonoma Comment
  CAS-BOT-BC341998  Lessingia ramulosa John Thomas Howell No date on label 2250 Sonoma SE. of Santa Rosa Comment
  POM187316  Ligusticum apiifolium Marcus E. Jones 1931-7-5 29076 Sonoma The Geysers. Comment
  UC32501  Ligusticum apiifolium W. C. Blasdale 1894-6-8 Sonoma Kenwood Comment
  OBI81570  Ligusticum apiifolium Tracey Call, Viola Call 1961-6-10 2070 Sonoma 1 mile north of Kruse Rhododendron State Park. 61 Comment
  CAS-BOT-BC451691  Lilaea scilloides Peter Rubtzoff 1951-6-16 221 Sonoma Pitkin Marsh, near Forestville. Just north of the Lower Marsh. Comment
  CAS-BOT-BC451702  Lilaea scilloides Lewis S. Rose 1962-4-11 62019 Sonoma Laguna de Santa Rosa, 1/2 mi. e of Cunningham 15 Comment
  SEINET12050381  Lilium maritimum F. H. Utech 1988-1 88 -218 Sonoma Salt Point, along CA 1 between Tenner & Stewart's Point, mile marker 38.39 75 Comment
  CAS-BOT-BC132998  Lilium rubescens Greg de Nevers 1990-6-11 9672 Sonoma Pepperwood Natural Preserve, 3450 Franz Valley Road, Weimar Canyon 457 Comment
  CAS-BOT-BC133000  Lilium rubescens A. T. Graff 1925-6-7 s.n. Sonoma Trospers Comment
  SFV2129  Limnanthes douglasii C. Bracker 1961-4-29 14 Sonoma North Coast Ranges 4 miles south of Occidental. 75 Comment
  UCD116502  Limnanthes douglasii Lewis S. Rose 1965-4-4 65020 Sonoma Sonoma County. 24 Comment
  UCSB22630  Limnanthes douglasii McCarthy, Sharon 1965-4-17 Sonoma At corner of 5th St. West and MacArthur St. 25 Comment
  RSA178016  Limnanthes douglasii subsp. douglasii Robert F. Thorne 1965-4-19 34274 a Sonoma Titus Ranch, Valley Ford. 18 Comment
  RSA52724  Limnanthes douglasii subsp. nivea I. L. Wiggins 1949-4-30 12064 Sonoma 4 miles W of Calistoga Comment
  UC17903  Limnanthes striata Alice King Apr. 1897 Sonoma Healdsburg Comment
  CAS-BOT-BC251276  Limosella Peter Rubtzoff 1972-5-25 6751 Sonoma Laguna, Chileno Valley. Comment
  RSA800125  Limosella Peter Rubtzoff 1972-5-25 6751 Sonoma Laguna, Chileno Valley. Comment
  UC908664  Linanthus jepsonii Herbert L. Mason 1940-5-21 12293 Sonoma Head of Maycama Creek Knights Valley Comment
  CAS-BOT-BC311811  Linaria Peter Rubtzoff 1962-5-25 4833 Sonoma Laguna de Santa Rosa area northwest of Graton, east of Laguna Road. Comment
  SEINET12186161  Linum bienne F. H. Utech 1988-1 88 -189 Sonoma ca 1.5 mi E of CA 1 on Willow Creek Road, Willow Creek marsh 10 Comment
  CAS-BOT-BC26043  Linum spergulinum H. N. Bolander 1867-6-1 s.n. Sonoma Cloverdale Comment
  CHSC114678  Linum trigynum Peter Warner 2010-5-16 167 Sonoma Jenner Headlands, Knoll Field, 203m, s244 deg. W of residence house, on S-facing slope of knoll in coastal grassland. UTM 10S: 489308E, 4256990N 230 Comment
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May 27 2016
  CAS-BOT-BC36012  Lithocarpus densiflorus var. densiflorus Mary P. Wells 1985-7-10 547 Sonoma King's Ridge Road Comment
  HSC20223  Lithophragma affine R. F. Good 1962-4-20 4 Sonoma 2 mi. W of Petaluma on D St., extension toward Pt. Reyes. Sonoma Mt. Coast Range. 46 Comment
  UCR37748  Lobularia maritima A. C. Sanders 1985-1-19 5371 Sonoma Bodega Bay, coastal bluffs behind Lucas Wharf, along the highway 15 Comment
  CAS-BOT-BC342133  Logfia filaginoides Greg de Nevers; Frank Almeda 1987-4-11 8140 Sonoma Pepperwood Rach Natural Preserve, 3500 Franz Valley Road, Santa Rosa 400 Comment
  UCD66200  Lolium multiflorum R. Tofsrud 1941-6-1 Sonoma Santa Rosa, Odd Fellows Cemetery. Comment
  JEPS81825  Lomatium californicum Edward Lee with W. A. Setchell 1936-6-8 2208 Sonoma Belvedere, Bohemian Grove Comment
  RSA452569  Lomatium caruifolium Christopher Davidson 1977-6-20 6011 Sonoma Dry Cr. Rd. 8.6 mi. W of Geyserville. 91 Comment
  RSA0051266  Lomatium hallii Greg de Nevers 1993-5-10 10443 Sonoma Harrison Grade. 182 Comment
  POM117353  Lomatium macrocarpum Marcus E. Jones 1924-4-25 s.n. Sonoma Cloverdale. Comment
  UC1299237  Lomatium marginatum var. purpureum Freed W. Hoffman 1949-6-5 3212 Sonoma Lincoln Rock, on Lake County--Pine Flat road North Coast Ranges 685 Comment
  UCD127724  Lomatium utriculatum Jennifer Bury; Peggy Herzog 1993-5-8 261 Sonoma About 40 air miles N of San Francisco; about 11 air miles E of Santa Rosa and 2.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge and S of Red Mtn 1 mile. Near visitor center. 381 Comment
  UC923165  Lomatium vaginatum Freed W. Hoffman 1950-5-24 3282 Sonoma The Island, Devil Creek, a tributary of East Austin Crek North Coast Range, Devil Creek Comment
  CAS-BOT-BC240646  Lonicera hispidula Walter Knight; Irja Knight 1963-10-3 318 Sonoma Crane Canyon Comment
  CAS-BOT-BC240651  Lonicera hispidula Peter Rubtzoff 1952-5-31 1115 Sonoma Pitkin Marsh, near Forestville. Bordering the central part of the Pitkin Marsh Comment
  UCD137329  Lonicera hispidula Frederica Bowcutt; Jeff Kennedy, Jolie Hendricks 1994-5-1 1748 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco; 10 air miles E of Santa Rosa; 18 air miles NW of Napa; 1.5 air miles NE of Kenwood. In Adobe Canyon along Goodspeed Trail approximately 1/8 mile from trail head on Adobe Canyon Road. 213 Comment
  CAS-BOT-BC244006  Lonicera involucrata var. ledebourii Peter Rubtzoff 1951-5-28 83 Sonoma Western branch of the Upper Marsh, Pitkin Marsh near Forestville Comment
  RSA177973  Lonicera involucrata var. ledebourii R. F. Thorne 1965-4-19 34268 Sonoma Halfway between Bloomfield and Valley Ford. 18 Comment
  UCR143602  Lotus G. F. Pratt, C. Pierce 2003-5-15 s.n. Sonoma North Coast, Salt Point State Park 122 Comment
  CAS-BOT-BC200971  Lotus John H. Thomas 1966-5-8 11595 Sonoma 1.4 miles west of Napa-Sonoma county line. Along road between Calistoga and Santa Rosa Comment
  CAS-BOT-BC540824  Lotus Peter Rubtzoff 1974-9-7 7887 Sonoma Hinebaugh Creek in Rohnert Park., creek bed west of Commrece Blvd. crossing. Comment
  CAS-BOT-BC540843  Lotus Peter Rubtzoff 1974-5-18 7423 Sonoma Todd Road, 1.4 mi from Hwy 116 and 0.6 mi from Llany Road Comment
  RSA22095  Lotus angustissimus Alice Eastwood, John T. Howell 1938-7-11 6267 Sonoma Near Stillwater Cove Comment
  UCR143596  Lotus formosissimus G. F. Pratt, C. Pierce 2003-5-15 s.n. Sonoma North Coast, Salt Point State Park 122 Comment
  RSA177938  Lotus humistratus Robert F. Thorne 1965-4-20 34336 Sonoma Parker Hill Rd, 2.5 miles N of Santa Rosa and 1 mile N of Sonoma County Hospital. 107 Comment
  UC566201  Lotus humistratus H. S. Yates 1934-4-22 3861 Sonoma near Petrified Forest; Calistoga Quad. 243 Comment
  CAS-BOT-BC249320  Ludwigia palustris var. pacifica Peter Rubtzoff 1954-7-4 1527 Sonoma Austin Creek Marsh. Comment
  CAS-BOT-BC157689  Ludwigia peploides Peter Rubtzoff 1961-8-24 4711 Sonoma Vacation Beach, 2 miles below Guerneville along Russian River. Comment
  SEINET7067330 Image available Lupinus A. G. Vestal 1947-5-16 s.n. Sonoma About 8.2 miles East of Windsor on Mendocino Avenue [in Santa Rosa]. Coordinate datum: NAD27. UTM Zone 10, 524713mE, 4255867mN. Comment
  CAS-BOT-BC201293  Lupinus Mary P. Wells 1981-4-19 s.n. Sonoma Crows Nest Rd. So. of Moonraker Rd., The Sea Ranch Comment
  CAS-BOT-BC201294  Lupinus Mrs. H. C. Cantelow 1941-6-7 s.n. Sonoma 4 miles north of Bay, on state highway 1 Comment
  UC905105  Lupinus albifrons Milo S. Baker 1947-4-16 11686 Sonoma cliffs at junction of Mark West Road and one from Rincon Summit; cliffs at jct of Mark West Rd and one fr Rincon Summit Comment
  SEINET10488401  Lupinus albifrons Charles Piper Smith 1948-4-27 Smith 48163 Sonoma Junction melitta-mark west-petrified forest roads. Petrified forest, junction Comment
  SEINET5327629  Lupinus albifrons A. A. Heller, H. E. Brown 1902-3-27 5162 Sonoma Western base of Mt. Hood. Comment
  UCD105999  Lupinus albifrons Collector Unknown Date Unknown s.n. Sonoma southwestern part of county. Comment
  CAS-BOT-BC195980  Lupinus albifrons var. albifrons A. A. Heller; H. E. Brown 1902-3-27 5162 Sonoma Western base of Mt. Hood Comment
  UCD151311  Lupinus albifrons var. collinus James A. Neilson Jr. 1974-4-30 2727 Sonoma Mayacmas Mountains. Geyser-Healdsburg Road, 1/2 mile north of Culver Baer Mine. (Elevation estimated by label-maker using topo map.) 853 Comment
  SEINET10484536  Lupinus albifrons var. collinus Joseph W. Congdon 1880-5-30 Congdon s.n. Sonoma Petaluma, CA. Comment
  CAS-BOT-BC196461  Lupinus arboreus Mrs. H. C. Cantelow 1940-4-20 s.n. Sonoma South end of Russian River Bridge on highway 1 Comment
  JEPS85896  Lupinus arboreus Jack and Betty Guggolz 1991-6-1 1160 B Sonoma between Hwy 1 and the ocean just s Meyers Grade; between Hwy 1 and the ocean 182 Comment
  UCD106630  Lupinus arboreus P. B. Kennedy 1915-5-28 14 Sonoma Del Mar. Comment
  POM299302  Lupinus arboreus var. eximius H. C. Cantelow 1941-6-7 s.n. Sonoma 4 miles north of Bay, State Highway 1. Comment
  CHSC33094  Lupinus bicolor Jane A. Rogers 1979-4-14 4 Sonoma Ca. 100 yds. e of end of Hart Lane, ca. 1/2 mi. n of intersection of Hwy. 12 and Duer Rd., ca. 1 mi. e of Sebastopol. 27 Comment
  UCD167410  Lupinus bicolor James Neilson 1977-3-25 3853 Sonoma Mayacmas Mountains, about 3 miles south Pine Flat on Pine Flat Rd. (Exact location unknown. Coordinates estimated by label maker.) Comment
  RSA52650  Lupinus bicolor subsp. microphyllus I. L. Wiggins 1943-4-30 12066 Sonoma 4 miles west of Calistoga, just west of the county line. Comment
  RSA372144  Lupinus formosus var. formosus David B. Dunn, M. L. Conrad, LeDoux 1973-6-9 20712 Sonoma 5.3 miles east of the junction of Highway 101 and Highway 116 on 116. Comment
  UCR255745  Lupinus latifolius Greg de Nevers 1998-4-28 11210 Sonoma North Coast Range, Cresta Ranch, Cresta Road east of Mark West Lodge, on flood plain of Mark West Creek 137 Comment
  CDA27499  Lupinus microcarpus var. densiflorus T. C. Fuller 1966-6-2 14858 Sonoma East side of Pacific Coast Highway 1, 0.2 mile south of junction with Petaluma-Valley Ford Road, 1 mile east of Valley Ford. 0 Comment
  UC201918  Lupinus microcarpus var. microcarpus Milo S. Baker Sonoma Dillon's Beach Comment
  UC1129626  Lupinus nanus B. Schreiber 1936-3-5 2212 Sonoma 2 mi wnw Mark West Springs; Healdsburg Quad., wnw of Mark West Springs 121 Comment
  UCD151181  Lupinus nanus James A. Neilson Jr. 1974-4-16 3114 Sonoma Mayacmas Mountains. Sulphur bank number 13. (Elevation estimated using Google Earth by label maker.) 487 Comment
  UC865365  Lupinus pachylobus Alice Eastwood 1918-5-1 6844 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC320548  Lupinus polycarpus Peter Rubtzoff 1969-5-11 6045 Sonoma Laguna de Santa Rosa northeast of Graton, at end of Piner Road. Comment
  CDA9233  Lupinus polyphyllus var. polyphyllus D. G. Kelch 1991-5-16 s.n. Sonoma Pitkin Marsh Comment
  CAS-BOT-BC207258  Lupinus sericatus John Thomas Howell 1935-5-5 12610 Sonoma Near summit of Trinity P.O. Road, Mt. Hood Range Comment
  SEINET10870696  Lupinus succulentus Joseph W. Congdon 1880-5-2 Congdon s.n. Sonoma Comment
  CAS-BOT-BC202172  Lupinus tidestromii Catherine Best 1980-9-18 s.n. Sonoma On the south side of the mouth of the Russian River Comment
  UC725888  Lupinus variicolor A. A. Heller 1940-5-17 15637 a Sonoma along State Highway #1, 2 mi w Valley Ford; w of Valley Ford Comment
  SEINET6932751 Image available Lupinus versicolor W. P. Vestal, A. G. Vestal 1947-5-13 s.n. Sonoma Cove at Bodega Head. Comment
  UCD164189  Luzula Peter Rubtzoff; Nancy Harrison 1978-6-11 9205 Sonoma Cunningham Marsh area. On north side of Blucher Creek Valley. Comment
  CAS-BOT-BC436743  Luzula comosa var. comosa Peter Rubtzoff 1951-6-7 131 Sonoma Pitkin Marsh. near Forestville. Western branch of the Upper Marsh Comment
  CAS-BOT-BC436744  Luzula comosa var. comosa Peter Rubtzoff 1951-7-28 556 Sonoma Pitkin Marsh. near Forestville. Northern half of Lower Marsh Comment
  CAS-BOT-BC441294  Luzula macrantha D. E. Breedlove 1983-4-11 58685 Sonoma Pepperwood Ranch, W of Knights Valley Comment
  CAS-BOT-BC441391  Luzula subsessilis G. DeNevers 1981-5-9 1102 Sonoma Pepperwood Ranch: south of Redwood Canyon Comment
  CDA19068  Lythrum salicaria L. Correia 2001-7-16 PDR P 117378 Sonoma North Coast Ranges; N bank Russian River at Rio Nido and to east ~ 0.5 mi 0 Comment
  UCD167413  Madia James Neilson 1978-5-3 3961 Sonoma Mayacmas Mountains, north side of Red Hill. (Neilson 3959 collected on the same date indicates that this specimen was located near Red Hill, although his field notebook says Red Mtn. in error. Exact location unknown. Coordinates estimated by label maker.) Comment
  CAS-BOT-BC342609  Madia Lawrence Beane 1949-5-11 338 Sonoma 2 miles north of Cloverdale Comment
  CAS-BOT-BC342617  Madia anomala Alice Eastwood; John Thomas Howell 1938-5-15 5509 Sonoma Near Mark West Springs Comment
  CAS-BOT-BC344039  Madia elegans David D. Keck 1933-11-6 2646 Sonoma 1 mi. N. of Freestone on road to Occidental Comment
  CHSC107497  Madia elegans D. G. Kelch; Troy McGregor 2010-8-22 10 .355 Sonoma Nr Peak of Geyser Peak Rd. Comment
  CAS-BOT-BC344033  Madia elegans Peter Rubtzoff 1952-7-20 1307 Sonoma Pitkin Ranch, Vine Hill region Comment
  CAS-BOT-BC344034  Madia elegans James I. McMurphy 1909-5-29 s.n. Sonoma Mountains near The Geysers Comment
  JEPS12584  Madia elegans Eleanor Armstrong June 1932 509 Sonoma hill below St. Dorothy's (near Camp Meeker) 121 Comment
  CDA31280  Madia elegans subsp. vernalis D. G. Kelch, Ed Biffin 2010-5-3 10 .203 Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  CAS-BOT-BC344548  Madia exigua F. H. Utech; W. Knight; I. Knight 1986-5-17 86 -230 Sonoma End of Stoetz Road 310 Comment
  CAS-BOT-BC166733  Madia gracilis Peter Rubtzoff 1967-9-2 5876 Sonoma Freestone Marsh. Comment
  CAS-BOT-BC343452  Madia gracilis John Thomas Howell 1937-7-4 13065 Sonoma Near Petrified Forest Comment
  CAS-BOT-BC343467  Madia gracilis G. DeNevers 1981-5-30 1341 Sonoma Pepperwood Ranch. In creekbed N of Hansel's corral Comment
  UCD132826  Madia gracilis Frederica Bowcutt 1996-5-24 2160 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Adobe Canyon N of Sonoma/Rattlesnake Creek confluence on small knoll. 381 Comment
  CAS-BOT-BC345212  Madia sativa Alice Eastwood 1915-6-29 s.n. Sonoma Bodega Point Comment
  CAS-BOT-BC345255  Madia sativa Peter Rubtzoff 1951-8-4 580 Sonoma Pitkin Marsh, near Forestville. Opening south of the Upper Marsh Comment
  RSA786498  Madia sativa Peter Rubtzoff 1971-6-30 6582 Sonoma Eastern foothills of Sonoma Mtns., on Sobre Vista Road, 0.9 mi west of Arnold Drive. Comment
  UC1042431  Malus pumila var. domestica Peter Rubtzoff 1951-11-24 847 Sonoma near Forestville (Pitkin Marsh, Upper Marsh, uppermost part of w branch); Pitkin Marsh Comment
  POM59381  Marah fabacea A. A. Heller, H. E. Brown 1902-4-11 5277 Sonoma Bodega Bay. Comment
  CAS-BOT-BC348213  Matricaria discoidea Peter H. Raven 1950-4-6 1578 Sonoma Cotati to Santa Rosa 152 Comment
  CAS-BOT-BC348214  Matricaria discoidea Peter Rubtzoff 1966-5-7 5704 Sonoma Laguna de Santa Rosa east of Sebastopol Comment
  CAS-BOT-BC348219  Matricaria discoidea Peter Rubtzoff 1972-5-25 6773 Sonoma Laguna, Chileno Valley Comment
  UCD134584  Matricaria discoidea Gerry North 1993-4 23 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood, and 18 air miles NW of Napa. South of Hillside Trail, at fork by water tank. 426 Comment
  CAS-BOT-BC348311  Matricaria occidentalis Peter Rubtzoff 1974-5-19 7446 Sonoma Laguna de Santa Rosa east of Graton, between Occidental and Guerneville roads Comment
  UC855219  Meconella californica Alice Eastwood 1917-5-10 Sonoma on rd Bodega Point Comment
  CAS-BOT-BC268111  Medicago Peter Rubtzoff 1973-8-21 7247 Sonoma Sonoma Creek bottom, near Agua Caliente Road crossing, west of Agua Caliente. Comment
  CAS-BOT-BC262977  Medicago Peter Rubtzoff 1968-8-31 5945 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  UC53670  Melica californica F. T. Bioletti 1893-6-5 Sonoma s Los Guilucos Valley Los Guilucos Valley Comment
  UCD87353  Melica geyeri R. Tofsrud 1947-5-4 s.n. Sonoma Parker Hill near Santa Rosa. Comment
  UCD87346  Melica geyeri R. Tofsrud 1942-4-1 279 Sonoma Along Mark West road about 3 mi. above the Springs resort. Comment
  UCD87379  Melica harfordii Beecher Crampton 1954-5-9 1837 Sonoma Sonoma County, 2.5 miles north of Guerneville. Comment
  UC60773  Melica harfordii J. Burtt Davy 1896-7-29 Sonoma Redwood Ridge; Russian River Comment
  CAS-BOT-BC262558  Melica torreyana Peter Rubtzoff 1952-6-3 1161 Sonoma South slopes of Fitch Mtn., near Healdsburg Comment
  UC1024769  Melica torreyana Leo Whitney 1935-4-14 2259 b Sonoma near Occidental (Blunden's Pasture) Comment
  UCD36693  Melica torreyana Beecher Crampton 1955-6-17 2956 Sonoma Sonoma County, 5 miles west of Cazadero, on road to Fort Ross. Comment
  SEINET6205052  Melica torreyana L. S. Rose 1965-1 65022 Sonoma 1 mi N of Sonoma Comment
  UC1146661  Melica torreyana Freed W. Hoffman 1944-5-22 1996 Sonoma near ocean shore Cruz Ranch; North Coast Ranges Comment
  UCD88826  Melica torreyana Virginia Bufford 1936-5-19 295 Sonoma Moss Cottage -- Los Guillicos Valley. Comment
  UCR279859  Melissa officinalis Peter Rubtzoff 1965-9-5 5639 Sonoma North Coast Ranges, Forest Hills, 5.5 miles east of Guerneville 9 Comment
  CAS-BOT-BC164362  Mentha Peter Rubtzoff 1958-9-27 4011 Sonoma Laguna de Santa Rosa, northeast of Graton (1.5 mi. N of Guerneville Road). Comment
  RSA784596  Mentha Peter Rubtzoff 1955-8-28 2113 Sonoma Guerneville region: Russian River. Vacation Beach, near Guerneville. Comment
  UCR244601  Mentha Peter Rubtzoff 1958-8-16 3882 Sonoma Laguna de Santa Rosa, north of Sebastopol, near Occidental Road 17 Comment
  CAS-BOT-BC164420  Mentha Peter Rubtzoff 1958-8-16 3882 Sonoma Laguna de Santa Rosa, north of Sebastopol (near Occidental Road). Comment
  JEPS63477  Mentha canadensis W. L. Jepson 1921-9-12 9485 Sonoma Alexander Valley 45 Comment
  CAS-BOT-BC164694  Mentha spicata Peter Rubtzoff 1973-8-28 7275 Sonoma Upper Green Valley Marsh. Comment
  RSA784550  Mentha spicata Peter Rubtzoff 1961-8-24 4708 Sonoma Fife Creek Marsh. Comment
  UCD148381  Mentha spicata Peter Rubtzoff 1955-8-28 2114 Sonoma Vacation Beach, near Guerneville. Comment
  JEPS42853  Mentzelia laevicaulis var. laevicaulis Miss C. M. Hoak Aug 1912 Sonoma vicinity Monte Rio Comment
  JEPS42864  Mentzelia laevicaulis var. laevicaulis Miss C. M. Hoak Aug 1912 Sonoma Monte Rio Comment
  UCD151251  Mentzelia micrantha James A. Neilson Jr. 1974-7-10 2888 Sonoma Mayacmas Mountains. North of Little Geysers. 853 Comment
  UCR261616  Micranthes californica Ann Howald 2003-3-8 2275 A Sonoma Inner North Coast Ranges, Mayacamas Mountains, Sugarloaf Ridge State Park, McCormick Addition, ca. 0.1 mile east of intersection of Headwaters Trail and Grandmother Oaks Trail 450 Comment
  SD71410  Micropus amphibolus John Thomas Howell 1965-3-25 41033 Sonoma 3.0 miles southeast of Sonoma. 74 Comment
  UCD165221  Microseris laciniata subsp. laciniata Peter Rubtzoff; Nancy Harrison, Dug Jones 1974-6-8 7576 Sonoma Todd Road, 1.4 mi from Hwy 116 and 0.6 mi from Llano Road. Comment
  CAS-BOT-BC322751  Microseris paludosa G. DeNevers; S. Kaza 1981-5-7 976 Sonoma 10510 Old Redwood Highway 2miles NW of Windsor exit from 101, vacant lot by Healdsburg Rent-All Comment
  CAS-BOT-BC311866  Mimulus Peter Rubtzoff 1969-6-14 6073 Sonoma Vernal pool, 6.5 miles northeast of Penngrove, on Lichan Road. 426 Comment
  CAS-BOT-BC312698  Mimulus Peter Rubtzoff 1964-7-29 5442 Sonoma Brooks Gulch Marsh. Comment
  CAS-BOT-BC320581  Mimulus Peter Rubtzoff 1955-7-9 1933 Sonoma Forestville Marsh. Comment
  RSA0025394  Mimulus Peter Rubtzoff 1962-5-30 4849 Sonoma Freestone Marsh. Comment
  SEINET10614150  Mimulus aurantiacus Jon Ricketson, Deanna Vanderbur 1985-7-3 Ricketson 2618 Sonoma Fort Ross State Park, along State Highwa 1, between Fort Ross and Jenner above Pacific Ocean. 50 miles northwest of San Francisco. 30 Comment
  SEINET12327817  Mimulus aurantiacus F. H. Utech, Knight, W.; Knight, I. 1984-1 84 -076 Sonoma ca 4 mi NNW of Sonoma on Cavedale Road from junction with CA 12 107 Comment
  UCD122173  Mimulus aurantiacus Collector Unknown Date Unknown s.n. Sonoma Sonoma County. Exact location unknown. Comment
  UC1012384  Mimulus aurantiacus var. aurantiacus Francis W. Pennell Jul 2 1940-Jul 3 1940 26033 Sonoma mountain ne Kenwood Springs 243 Comment
  UC26898  Mimulus cardinalis Alice Bolton 1888-8-29 Sonoma below Guerneville; Russian River Comment
  RSA535759  Mimulus douglasii David M. Thompson 1989-3-18 990 Sonoma Lake Sonoma Recreation Area. Liberty Glen Campground entrance booth. 2.8 mi W of bridge over Lake Sonoma along Rockpile Road, then 0.4 mi S along paved campground road to booth. 0.1-0.2 mi NE of parking area for free booth. 183 Comment
  UCR248873  Mimulus guttatus Peter Rubtzoff 1955-7-9 1928 Sonoma North Coast Range, Forestville Marsh 71 Comment
  UCR248878  Mimulus guttatus Peter Rubtzoff 1962-6-19 4918 Sonoma Occidental Marsh 305 Comment
  UCR275268  Mimulus guttatus Peter Rubtzoff 1955-7-9 1929 Sonoma North Coast Range, Forestville Marsh 71 Comment
  SEINET12327815  Mimulus guttatus F. H. Utech, Knight, W.; Knight, I. 1984-1 84 -097 Sonoma ca 4 mi NNW of Sonoma on Cavedale Road from junction with CA 12 396 Comment
  UC26956  Mimulus kelloggii H. N. Bolander 1864-1 3951 Sonoma near Pine Mt.; The Geysers Comment
  UC1239065  Mimulus microphyllus Freed W. Hoffman 1947-4-10 1890 Sonoma The Geysers North Coast Ranges Comment
  UCD122796  Mimulus moschatus Mary M. Hektner; Sue Dakuzaku, Cathy Hendel 1974-7-2 96 A Sonoma Unit 28 Owners' Map, Sea Ranch, near State Highway 1. Comment
  NY90752  Mimulus nasutus H. T. Edwards 04 1877 s.n. Sonoma Knights Valley Comment
  UC852247  Minuartia californica Keith Wagnon 1940-3-31 238 Sonoma 5 mi w Sebastopol; Gold Ridge Subdivision Comment
  CAS-BOT-BC388891  Minuartia douglasii Roxana S. Ferris; Laura Lorraine 1961-6-14 13522 Sonoma Junction of Bittner Road with Joy Road, between Occidental and Bodega Comment
  JEPS48608  Minuartia douglasii Eleanor Armstrong 1932-5-20 482 Sonoma near Kenwood (3 mi up canyon); Adobe Canyon 152 Comment
  JEPS128261  Moehringia macrophylla Roger Raiche 2000-4-15 034 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC435110  Mollugo verticillata Peter Rubtzoff 1958-9-21 4002 Sonoma Vacation Beach, near Guerneville. Bottom of Russian River. Comment
  JEPS128225  Monardella villosa Roger Raiche 2000-7-15 138 .00 Sonoma The Cedars. Campbell Ranch. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC220503  Monardella villosa John Thomas Howell 1929-6-30 6316 Sonoma 6 miles from Petrified Forest on road to Knights Valley Comment
  CAS-BOT-BC314161  Monardella villosa subsp. villosa G. DeNevers 1981-6-6 1475 Sonoma Pepperwood Ranch. Top of Telegraph Hill. Comment
  UC50091  Monolopia major H. N. Bolander 1866-4-18 4665 Sonoma Petaluma Comment
  CAS-BOT-BC444997  Montia fontana Greg de Nevers 1993-2-14 10313 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. In Bald Hills vernal pools. 304 Comment
  UCD144662  Montia fontana Frederica Bowcutt; Jolie Hendricks, Jeff Kennedy 1994-5-1 1792 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood, and 18 air miles NW of Napa. Campground S of Sonoma Creek approx. 125 yds. 1/4 mile NW of confluence of Rattlesnake Creek, meadow in center of campground. 350 Comment
  CAS-BOT-BC445005  Montia fontana Peter Rubtzoff 1955-4-23 1775 Sonoma Bennett Mountain Lake. Comment
  JEPS128370  Muhlenbergia andina Roger Raiche 1999-8-28 028 .99 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  SEINET12348989  Myosotis discolor F. H. Utech 1988-5-19 88 -193 Sonoma ca 1.5 mi E of CA 1 on Willow Creek Road, Willow Creek marsh 10 Comment
  UCSB5631  Myosotis discolor Kamb, Peter; Chisaki, Francia 1950-6-16 Sonoma Pitkin Marsh; northwest of Sebastopol; 1 miles north of Sousa Corners Comment
  CAS-BOT-BC257695  Myosurus Peter Rubtzoff 1970-5-30 6238 Sonoma 5 miles north of Sears Point. Comment
  UCD166497  Myosurus Peter Rubtzoff 1966-4-17 5672 Sonoma Laguna de Santa Rosa east of Sebastopol. Comment
  UC1135955  Myrica californica H. S. Yates 1934-4-21 3815 Sonoma near Guerneville; Duncan Mills Quad. Comment
  UC5274  Myrica californica J. Burtt Davy 1896-3-14 1670 Sonoma Fort Ross Comment
  CAS-BOT-BC456192  Najas guadalupensis Peter Rubtzoff 1973-8-27 s.n. Sonoma Upper Green Valley Marsh area. Comment
  CAS-BOT-BC361285  Nassella lepida Greg de Nevers 1997-4-24 10964 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  UCD144430  Nassella lepida Frederica Bowcutt 1996-5-19 2127 b Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles N of Kenwood, and 18 air miles NW of Napa. Adobe Canyon firebreak (narrow) btw. lower Bald Mtn. and Bald Mt. Trail. 487 Comment
  UCD87889  Nassella lepida Leo Koch 1940-4-24 844 Sonoma Bennett Val. Roadside, 1 mile south of road junction. Comment
  CAS-BOT-BC260288  Nassella pulchra W. L. Jepson 1911-4-30 4181 Sonoma Sonoma Valley 83 Comment
  SEINET7040130  Nassella pulchra A. G. Vestal 1962-4-11 Sonoma 1 mile east of Occidental. UTM Zone 10, 505896mE, 4250807mN. Comment
  SEINET7042683  Nassella pulchra A. G. Vestal 1947-5-16 s.n. Sonoma Ca.4.5 miles east of Winsor. Healdsburg quadrangle UTM Zone 10, 519826mE, 4271406mN. Comment
  CAS-BOT-BC60515  Nasturtium officinale Peter Rubtzoff 1951-6-9 158 Sonoma Pitkin Marsh near Forestville. Northern half of Lower Marsh. Comment
  JEPS70255  Navarretia cotulifolia W. L. Jepson 1921-6-3 9307 Sonoma s of Santa Rosa (near Wilfred station); Cotati Valley 28 Comment
  UC1719855  Navarretia cotulifolia David Fruchter 1978-9-16 92 Sonoma Todd Road Comment
Read comments
Jul 24 2011
  UC1719860  Navarretia cotulifolia David Fruchter 1978-9-17 95 Sonoma Diamond D. [sic] Comment
  UCD160967  Navarretia heterandra James A. Neilson Jr. 1975-7-8 3378 Sonoma Mayacmas Mountains. Socrates Mine Road, near summit. (Elevation and coordinates estimated by label maker.) 975 Comment
  JEPS70315  Navarretia heterodoxa W. L. Jepson 1895-8-30 20959 Sonoma near Napa Valley; Petrified Forest Comment
  UC1008714  Navarretia heterodoxa Beecher Crampton 1950-6-27 597 Sonoma 6 mi ne Glen Ellen (on Trinity Road) Comment
  UC188486  Navarretia heterodoxa Edw. L. Greene 1888-8-31 Sonoma Petrified Forest Comment
  CAS-BOT-BC230367  Navarretia leucocephala subsp. bakeri Peter Rubtzoff 1966-7-4 5773 Sonoma Laguna de Santa Rosa NE of Graton, at end of Piner Road Comment
  CAS-BOT-BC230376  Navarretia leucocephala subsp. bakeri Niall McCarten 1986-5-28 5260 Sonoma NE end of Shiloh Ranch, 0.25 mile S of N end of Leslie Road on E side of road Comment
  LA206733  Navarretia squarrosa John Thomas Howell; 1938-7-3 13951 Sonoma Stony Point Comment
  UC1299600  Navarretia squarrosa Freed W. Hoffman 1946-8-20 866 Sonoma western slope of Napa Range, Trinity Road, at quarry North Coast Ranges, Napa Range Comment
  UC582809  Navarretia squarrosa P. A. Munz 1936-8-7 14308 Sonoma 6 mi n Bodega Comment
  UCD48682  Navarretia squarrosa Frederica Bowcutt 1984-6-23 425 Sonoma Salt Point State Park. Approx. 20 miles N of Jenner and 80 miles S of Fort Bragg along Sonoma County Coast. W of Hwy 1. N of Gerstle Cove growing along roads. On Plantation 7.5' Quad. Coastal terrace. 30 Comment
  UCD48702  Navarretia squarrosa Frederica Bowcutt 1994-6-25 1915 Sonoma Sugarloaf Ridge State ParkAbout 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. Along Grey Pine Trail about 1/2 way between Brushy Peak Trail and Meadow Trail. 530 Comment
  POM260569  Navarretia tagetina L. S. Rose 1940-5-22 40366 Sonoma Sonoma 30 Comment
  UCD160863  Navarretia vividior James A. Neilson Jr.; Teresa A. Sholars 1975-6-27 3294 a Sonoma Mayacmas Mountains, Caldwell Pines, ca. 3 1/2 miles west of Glenbrook and Bottle Rock Road, northeast Sonoma County. (Elevation and coordinates estimated by label maker.) 975 Comment
  JEPS3150  Nemophila heterophylla L. Constance 1938-4-24 2151 Sonoma 2 mi ne Bodega (on Salmon Creek); , ne of Bodega 91 Comment
  UCD119981  Nemophila heterophylla Frederica Bowcutt; Jolie Henricks, Jeff Kennedy 1994-5-1 1753 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. In Adobe Canyon along Goodspeed Trail approx. 200 yds. From just E of Bear Creek about 5 yds. N of confluence with Sonoma Creek. 198 Comment
  CDA40366  Nemophila heterophylla J. C. Violetti 1968-5-22 s.n. Sonoma 2939 Mayette Ave., Santa Rosa. 0 Comment
  POM125417  Nemophila heterophylla Alice Eastwood 1923-5-9 s.n. Sonoma Mt. St. Helena. Comment
  UCD160137  Nemophila menziesii James A. Neilson Jr. 1974-3-27 3009 Sonoma Mayacmas Mountains. The Geysers. Site A-8. (Elevation estimated using Google Earth by label maker.) 426 Comment
  UCD120232  Nemophila menziesii R. W. Thorp 1967-3-9 670309 D Sonoma One mile southeast of Verona. Comment
  UCSB5331  Nemophila menziesii Robbins, G. 1940-3-21 Sonoma At junction of Pleasant Avenue Road and Chalk Hill Road; 2-3 miles southeast of Windsor 91 Comment
  RSA51317  Nemophila menziesii var. menziesii Peter H. Raven 1950-4-6 1571 Sonoma Cotati to Santa Rosa. 30 Comment
  UC111228  Nicotiana acuminata var. multiflora W. A. Setchell 1906-9-3 Sonoma near Monte Rio Comment
  UCD110189  Notholithocarpus densiflorus A. T. Leiser 1968-1-16 s.n. Sonoma Sea Ranch, N. end of ridge. 91 Comment
  CAS-BOT-BC400126  Nuphar polysepala Peter Rubtzoff 1954-8-2 1626 Sonoma Duncans Mills Marsh Comment
  CAS-BOT-BC140457  Oemleria cerasiformis Catherine Best 1987-4-16 1249 Sonoma Bouveric - Audubon Preserve on the trail to the waterfall Comment
  JEPS76925  Oemleria cerasiformis Robert M. Lloyd 1963-2-24 2054 Sonoma 4 mi s State Highway 12 (on State Highway 1) 15 Comment
  UCD149026  Onopordum illyricum Andrew Smith 2011-12-21 160423 0 Sonoma Santa Rosa; Pepperwood Preserve; 3450 Franz Valley Road., near Mark West Springs Road. Comment
  RSA177933  Orthocarpus attenuatus Robert F. Thorne 1965-4-20 34334 Sonoma Parker Hill Rd, 2.5 miles N of Santa Rosa and 1 mile N of Sonoma County Hospital. 107 Comment
  RSA66918  Orthocarpus attenuatus E. K. Balls 1951-5-3 16405 Sonoma Ca. 1 mi. e. from Petrified Forest, road to Calistoga 610 Comment
  POM183040  Orthocarpus erianthus A. A. Heller, H. E. Brown 1902-4-4 5219 Sonoma Hills near Santa Rosa. Comment
  RSA51322  Orthocarpus erianthus Peter H. Raven 1950-4-6 1599 Sonoma Lower slopes of Rincon Ridge, 4 miles from Santa Rosa to Sonoma. 244 Comment
  RSA402030A  Orthocarpus faucibarbatus L. S. Rose 1933-5-9 33158 Sonoma Bodega Bay. Comment
  RSA402029B  Orthocarpus faucibarbatus J. T. Howell 1931-4-1 6038 Sonoma 9 miles SW of Sonoma on road to San Rafael. Comment
  RSA402033A  Orthocarpus lacerus Christopher Davidson 1977-6-20 6006 Sonoma Dry Cr. Rd. 8.6 mi. W of Geyserville. 91 Comment
  POM117418  Osmorhiza berteroi Marcus E. Jones 1924-4-25 s.n. Sonoma Cloverdale. Comment
  UCD110782  Oxalis corniculata Collector unknown Date unknown s.n. Sonoma Sonoma County. Comment
  UC971947  Oxalis oregana Martha Meagher 1947-3-23 93 Sonoma 1/2 mi w Freezout (across Russion River from Duncan's Mills) Comment
  SEINET10936147  Oxalis oregana R. D. Sage 1992-1-10 Sage 13412 -1 Sonoma Collected along joy rd between bodega hwy and bittner rd, ca 2-6 km sw occidental. Comment
  JEPS17413  Packera H. L. Mason 1934-4-28 8060 Sonoma 2 or 3 mi w Healdsburg (headwaters of creek); Jensen Ranch, Dorman Creek Comment
  SEINET11808775  Packera greenei Unknown 1986-1 60290 Sonoma at Lake Co. line, Mayacamas Mts., Pine Mt. fireroad, near head of Black Rock Creek 747 Comment
  CAS-BOT-BC376436  Panicum Greg de Nevers 1996-9-22 10878 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. In Mark West Creek at Leslie Creek. 400 Comment
  RSA94264  Panicum acuminatum var. acuminatum Peter Rubtzoff 1951-6-7 134 Sonoma Western branch of the Upper marsh; Pitkin Marsh, near Forestville Comment
  UCD89134  Panicum acuminatum var. thermale A. R. Kruckeberg 1949-6-4 S 21 Sonoma Sulphur Creek.Big Geysers. Comment
  CHSC59824  Parentucellia viscosa Herb McLane 1980-4-21 5 Sonoma W of U. S. 101 and n 20 ft of Healsburg Ave. Comment
  JEPS66219  Parentucellia viscosa T. I. Chuang with L. R. Heckard, R. Bacigalupi and P. Rubtzoff 1971-6-10 6904 Sonoma s central Pitkin Marsh (near end of Templeton Road) Comment
  JEPS128190  Parnassia palustris Roger Raiche 1999-9-20 034 .99 Sonoma The Cedars. Grotto Pool. Lower Russian River, Big Austin Creek watershed. Comment
  UC727743  Paspalum dilatatum Milo S. Baker 1946-8-17 11552 Sonoma ca 1 1/2 mi w of town Cunningham (Upland near the Joe Cunningham Marsh) Comment
  RSA94094  Paspalum dilatatum J. T. Howell 1946-8-17 22860 Sonoma Cunningham Marsh. Comment
  SEINET12327822  Pedicularis densiflora F. H. Utech, Knight, W.; Knight, I. 1984-1 84 -086 Sonoma ca 4 mi NNW of Sonoma on Cavedale Road from junction with CA 12 152 Comment
  SEINET12183371  Pelargonium X domesticum W. Knight, Knight, I.; Knight, T. 1984-1 5034 Sonoma Petaluma, purchased at K-Mart Comment
  CAS-BOT-BC69302  Pellaea andromedifolia D. E. Breedlove 1980-6-28 44816 Sonoma Pepperwood Ranch W of Knights Valley Comment
  UCD168038  Pellaea andromedifolia James A. Neilson Jr. 1981-3-13 3991 Sonoma Mayacmas Mountains, east tributary of Hummingbird Creek. (Exact location unknown, coordinates estimated by label maker.) Comment
  POM14508  Penstemon heterophyllus subsp. heterophyllus Michener, Bioletti 1893-06 s.n. Sonoma Hoods Peak. Comment
  NY130516  Penstemon sonomensis Miss Atterbury 1891-1 s.n. Sonoma Hoods Peak Comment
  SEINET12335254  Pentagramma triangularis F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -272 Sonoma ca 10 mi from Warm Springs Dam enroute to Healdsburg on Old Stewart Point-Skaggs Springs Road 150 Comment
  CAS-BOT-BC71734  Pentagramma triangularis subsp. triangularis John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary P. Wells 1981-5-14 54017 A Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles northeast of Penngrove 457 Comment
  CAS-BOT-BC222745  Perideridia gairdneri subsp. gairdneri Peter Rubtzoff 1962-8-3 5017 Sonoma Atascadero Creek Marsh Comment
  CAS-BOT-BC222749  Perideridia gairdneri subsp. gairdneri Peter Rubtzoff 1967-8-30 5872 Sonoma Pitkin Marsh, near Forestville. Southern part of the Upper Marsh Comment
  CHSC101363  Perideridia kelloggii Holly Forbes; Barbara Keller 2007-10-26 UCBG- 10 Sonoma Ecoregion 15. Coleman Valley Road, 8.05 km west of junction with Bohemian Highway. 304 Comment
  CAS-BOT-BC368035  Persicaria amphibia Greg de Nevers 1998-6-28 11296 Sonoma Lautenberg Ranch, Spencer Lane, Knights Valley. Comment
  CAS-BOT-BC413640  Persicaria amphibia Peter Rubtzoff 1971-6-25 6557 Sonoma Off west side of Hwy. 1, 0.7 mi. southeast of Salmon Creek crossing Comment
  CAS-BOT-BC413661  Persicaria amphibia Peter Rubtzoff 1966-10-9 5834 Sonoma Laguna de Santa Rosa northeast of Graton, ca. 1/2 mi. north of Guerneville Rd. Comment
  CAS-BOT-BC418924  Persicaria hydropiperoides Peter Rubtzoff 1960-6-9 4476 Sonoma Laguna de Santa Rosa area northeast of Graton, near the Laguna Road Comment
  SJSU5986  Persicaria hydropiperoides C. W. Sharsmith 1972-6-24 7807 Sonoma Laguna de Santa Rosa, N of Sebastopol, E of Graton Comment
  CAS-BOT-BC418923  Persicaria hydropiperoides Peter Rubtzoff 1963-9-1 5248 Sonoma Bennett Mtn. Lake Comment
  CAS-BOT-BC419123  Persicaria lapathifolia Walter Knight; Irja Knight 1963-9-29 219 Sonoma On Bodega Ave near Cleveland Lane-Petaluma Comment
  CAS-BOT-BC419268  Persicaria maculosa Peter Rubtzoff 1966-8-25 5798 Sonoma Laguna de Santa Rosa east of Sebastopol Comment
  CAS-BOT-BC419280  Persicaria maculosa M. S. Jussel 1931-5-3 s.n. Sonoma Healdsburg Comment
  CAS-BOT-BC419428  Persicaria punctata Peter Rubtzoff 1955-8-28 2106 Sonoma Forestville Marsh Comment
  UC35660  Petasites frigidus var. palmatus J. Burtt Davy March 1896 1639 Sonoma near Duncan's Mills Comment
  UC335744  Petasites frigidus var. palmatus unknown April 1888 Sonoma redwoods near Healdsburg Comment
  UC107557  Phacelia bolanderi Michener and Bioletti 1892-7-7 1886 a Sonoma Gualala Comment
  UC1333289  Phacelia californica Malcolm L. Byce 1936-3-21 147 Sonoma 1 1/2 mi e Bodega Bay; Larkspur Rock Comment
  UC1602000  Phacelia californica H. S. Yates 1934-4-21 3781 Sonoma near Bodega; Sebastopol Quadrangle Comment
  UC582807  Phacelia californica P. A. Munz 1936-8-7 14310 Sonoma 6 mi n Bodega Comment
  JEPS128247  Phacelia corymbosa Roger Raiche 2000-5-28 116 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UCR44925  Phacelia corymbosa L. F. LaPre 1985-6-7 s.n. Sonoma The Cedars, 6.5 mi NW of Cazadero near Layton, Chromite Mine, upper Austin Creek 413 Comment
  JEPS2394  Phacelia distans Milo S. Baker 1898-4-23 Sonoma Santa Rosa Cr. Canyon Comment
  UCD120591  Phacelia imbricata John Thomas Howell 1929-6-9 4307 Sonoma On road to Petrified Forest, 7.5 miles from Santa Rosa. Comment
  CAS-BOT-BC331487  Phalaris Peter Rubtzoff 1970-7-12 6283 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC332702  Phalaris Peter Rubtzoff; Nancy Harrison; Ruth Hass; Charles Quibell 1974-8-31 7839 Sonoma Kenwood Marsh. Comment
  RSA0023069  Phalaris Peter Rubtzoff 1968-6-25 5913 Sonoma Lichan Marsh. Comment
  CAS-BOT-BC265841  Phalaris arundinacea Peter Rubtzoff 1962-6-21 4943 Sonoma Laguna de Santa Rosa area northeast of Graton, east of Laguna Road, Sonoma County Marshes Comment
  UC1023572  Phalaris minor Virginia Bufford 1936-5-19 259 Sonoma Bennett Valley 2 or 3 mi from Santa Rosa; Bennett Valley Comment
  RSA789053  Phalaris paradoxa Carrie A. Herd 1982-5-15 116 Sonoma Rohnert Park, C.S.U, Sonoma, between dorm parking lot and bicycle path Comment
  UC573901  Phalaris paradoxa H. S. Yates 1937-6-5 6572 Sonoma 5 mi w Sonoma; Sonoma Quad. Comment
  UC1132445  Phleum alpinum H. S. Yates 1936-5-17 5626 Sonoma 1 1/2 mi e Bodega Port; Duncan Mills Quad. Comment
  UC23592  Phlox gracilis Alice King Apr 1897 Sonoma Healdsburg Comment
  JEPS28106  Phoradendron densum Roxana S. Ferris 1962-4-14 13584 Sonoma ca. 1/8 mi. beyond County dump Comment
  UCD102210  Phoradendron leucarpum subsp. tomentosum Frederica Bowcutt 1997-7-20 2203 Sonoma Sugarloaf Ridge State Park. About 50 air miles NE of Kenwood, 1.5 air miles ENE of Mt. Hood, 1 air mile NW of Bald Mtn. Bear Crk. Ranch in headwaters of the Bear Crk. 609 Comment
  UCD102226  Phoradendron leucarpum subsp. tomentosum G. F. Hrusa; T. D. Wilfred 1995-12-3 12481 Sonoma Foote Ranch Property at NW base of Mt. St. Helena. Approx. 1/2 distance to summit along Ida Clayton Rd. 300 Comment
  CAS-BOT-BC171221  Phoradendron serotinum subsp. tomentosum Walter Knight; Irja Knight 1963-12-27 450 Sonoma On Pine Flat Rd. Comment
  HSC100873  Photinia fraseri Peter Warner 2011-4-6 187 Sonoma Santa Rosa, Howarth Park, along foot-trails S of Lake Ralphine, N of Medica Ct. and Slate Dr. 112 Comment
  CAS-BOT-BC251214  Phyla nodiflora Peter Rubtzoff 1973-9-4 7301 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  UC327  Phyllospadix scouleri Milo S. Baker 1899-6-28 Sonoma near mouth of Russian River Comment
  CAS-BOT-BC366895  Physalis Greg de Nevers 1997-11-1 11105 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Franz Creek at Piney Canyon 400 Comment
  UCR255658  Physalis Greg de Nevers 1997-11-1 11105 Sonoma Santa Rosa, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road 400 Comment
  CAS-BOT-BC202278  Pickeringia montana var. montana W. W. Carruth 1899-7-1 s.n. Sonoma Geysers Comment
  CAS-BOT-BC202282  Pickeringia montana var. montana Elsa G. Ruckert 1960-5-15 153 Sonoma 4 miles up Triniti [Trinity] Road from junction with Highway 12 Comment
  SBBG55586  Pinus muricata D. I. Axelrod 1983-7-7 E- 3 Sonoma St Hwy 1, vicinity of Salt Point; ISOTYPE: P. muricata var. borealis 76 Comment
  RSA394828  Pinus muricata var. borealis D. Axelrod 1983-7-7 E- 3 Sonoma Vicinity Salt Point, Sate Highway 1. 76 Comment
  SEINET10908748 Image available Pinus ponderosa Unknown 1864-4-27 Anonymous s.n. Sonoma Comment
  HSC12258  Pinus sabiniana Wendell Wood 1970-9-21 285 Sonoma Preston, Hwy. 101 bridge at Russian River, Bulk Collection # 8 457 Comment
  UCD138999  Piperia elegans K. Esau 1933-7-8 s.n. Sonoma near Petrified Forest. Comment
  UCD144568  Piptatherum miliaceum Frederica Bowcutt 1994-7-5 1931 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. Adobe Canyon N of Sonoma Creek about 70 ft. S of Campfire Center along N edge of Sonoma Creek, N and E of campground. 381 Comment
  UC881363  Plagiobothrys Alice Eastwood 1921-5-8 10482 Sonoma Petaluma Comment
  UCD166132  Plagiobothrys Peter Rubtzoff 1969-5-3 6016 Sonoma Laguna de Santa Rosa, ca. 1 mile east-southeast of Sebastopol. Comment
  UCR279872  Plagiobothrys Peter Rubtzoff 1969-5-11 6048 Sonoma Laguna de Santa Rosa, NE of Graton, at end of Piner Road 30 Comment
  CAS-BOT-BC156307  Plagiobothrys Peter Rubtzoff 1970-5-30 6233 Sonoma 5 miles north of Sears Point. Comment
  CAS-BOT-BC166952  Plagiobothrys Peter Rubtzoff 1969-6-15 6090 Sonoma Laguna de Santa Rosa, ca. 1 mile east-southeast of Sebastopol. Comment
  CAS-BOT-BC177120  Plagiobothrys Peter Rubtzoff 1969-6-15 6089 Sonoma Laguna de Santa Rosa, ca. 1 mile east-southeast of Sebastopol. Comment
  RSA784980  Plagiobothrys bracteatus Peter Rubtzoff 1969-5-11 6040 Sonoma Laguna de Santa Rosa NE of Graton, at end of Piner Road Comment
  RSA785158  Plagiobothrys bracteatus Peter Rubtzoff 1969-5-3 6012 Sonoma Laguna de Santa Rosa, ca. 1 mi ESE of Sebastopol Comment
  RSA783848  Plagiobothrys bracteatus Peter Rubtzoff 1972-6-11 6780 Sonoma Laguna, Chileno Valley. Comment
  UCD120854  Plagiobothrys leptocladus Mary M. Hektner 1976-4-3 233 -A Sonoma Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  UC577956  Plagiobothrys nothofulvus H. S. Yates 1934-4-22 3842 Sonoma two mi s Mark West; Calistoga Quad. 152 Comment
  HSC87768  Plagiobothrys nothofulvus Kenneth Milam 1966-3-25 15 Sonoma 3/4 mi. W of Rockville Comment
  UCD35300  Plagiobothrys nothofulvus Beecher Crampton 1955-4-5 2414 Sonoma 2 miles southwest of Windsor. Comment
  JEPS80989  Plagiobothrys reticulatus Edward Lee with William Setchell 1936-6-8 2225 Sonoma near entrance of disturbed redwood forest; Bohemian Grove Comment
  JEPS60987  Plagiobothrys reticulatus var. reticulatus K. Brandegee June 1905 Sonoma Bodega Bay Comment
  RSA8527  Plagiobothrys stipitatus J. T. Howell 1933-4-1 10922 Sonoma Petaluma Comment
  UC353910  Plagiobothrys stipitatus Milo S. Baker 1927-4-9 2053 a Sonoma ca 1 mi w Monroe School House (Forestville Road) Comment
  RSA0083878  Plagiobothrys stipitatus var. micranthus Peter Rubtzoff 1970-5-16 6231 Sonoma 5 miles north of Sears Point Comment
  RSA785153  Plagiobothrys stipitatus var. stipitatus Peter Rubtzoff 1969-5-3 6017 Sonoma Laguna de Santa Rosa, ca. 1 mi ESE of Sebastopol Comment
  UCD37562  Plagiobothrys tenellus Beecher Crampton 1955-4-5 2409 Sonoma 3 miles west of Fulton, along Woolsey Road, just below Mount Olivet School. Comment
  CAS-BOT-BC293683  Plantago Peter Rubtzoff 1958-8-31 3952 Sonoma Atascadero Creek Marsh. Comment
  SBBG53025  Plantago erecta M. R. Benedict 1978-4-18 Sonoma Warm Springs Dam site, Dry Crk Valley Comment
  UCSB50226  Plantago erecta Gray, John 1976-5-1 Sonoma Bluff above Carment State Beach; T6N R11W 15 Comment
  SD39913  Plantago lanceolata Edith A. Purer 1932-7-21 4050 Sonoma Bodega Bay Comment
  UCD160860  Plantago lanceolata James A. Neilson Jr.; Teresa A. Sholars 1975-6-27 3289 Sonoma Mayacmas Mountains, Caldwell Pines, ca. 3 1/2 miles west of Glenbrook and Bottle Rock Road, northeast Sonoma County. (Elevation and coordinates estimated by label maker.) 975 Comment
  RSA94256  Plantago lanceolata Peter Rubtzoff 1951-7-14 440 Sonoma Pitkin Marsh near Forestville, Lower part of the upper marsh. Comment
  CAS-BOT-BC258383  Plantago subnuda Peter Rubtzoff 1960-6-9 4489 Sonoma Laguna de Santa Rosa area northeast of Graton, near Laguna Road. Comment
  JEPS19391  Plantago subnuda G. Thomas Robbins with John Weiler 1937-6-5 220 Sonoma about 10 mi w Santa Rosa (on Pitkin Ranch); Vine Hill Region Comment
  CAS-BOT-BC258384  Plantago subnuda Peter Rubtzoff 1955-8-6 2022 Sonoma Bodega Harbor Marsh. Comment
  CAS-BOT-BC92124  Platystemon californicus Elizabeth Parsons Hawver 1915-6-3 s.n. Sonoma Skaggs Springs. Comment
  UC766307  Plectritis brachystemon R. F. Hoover 1941-5-14 5082 Sonoma 3 mi s of Monte Rio (on road to Camp Meeker) Comment
  UC416756  Plectritis ciliosa subsp. ciliosa Milo S. Baker 1898-3-26 691 Sonoma Hills near McDonald's Reservoir Comment
  RSA796394  Pleuropogon Peter Rubtzoff, John Thomas Howell 1966-4-30 5686 Sonoma North side of Highway 116, 0.5 mile northwest of Stony Point Road crossing. Comment
  JEPS113047  Pleuropogon californicus Dean W. Taylor 1994-5-4 14200 Sonoma Santa Rosa Plain; north of Todd Road 0.5 mi W of junction with Llano Road (ca. 5 air mi SW Santa Rosa) 24 Comment
  CAS-BOT-BC260926  Pleuropogon californicus Catherine Best 1983-5-11 s.n. Sonoma At the edge of Arnold Drive about .5 mi. south up the intersection of Hwy. 116 Comment
  RSA0057956  Pleuropogon californicus Greg de Nevers 1998-4-28 11207 Sonoma Cresta Ranch, Cresta Road east of Mark West Lodge. Comment
  CAS-BOT-BC260968  Pleuropogon californicus var. californicus Thomas W. Nelson; Jane P. Nelson 1980-5-3 5128 Sonoma Along Roberts Road ca 100 m. past bridge over Copeland Creek, east of Rhonert Park 60 Comment
  CAS-BOT-BC260980  Pleuropogon californicus var. californicus Lewis S. Rose 1965-4-4 65019 Sonoma Sonoma 24 Comment
  RSA73965  Pleuropogon californicus var. californicus Milo S. Baker 1952-4-20 12402 Sonoma Western outskirts of Sonoma, along 5th street. Comment
  SEINET10611506  Pleuropogon californicus var. californicus Edward Lee 1934-4-30 Lee 753 Sonoma 1 mile west of 2 Rock junction. Comment
  HREC248 Image available Pleuropogon hooverianus Chuck Williams 1998-5-21 2162 Sonoma Hopland Field Station: 4100 Pressley Rd. Comment
  NY431399  Pleuropogon hooverianus P. P. But 1975-5-17 P 4 Sonoma Along Bohemian Hwy. at Freestone Flat Road, 0.5 mile from Freestone Comment
  UC1258194  Pleuropogon hooverianus Paul But 1975-4-1 P 25 Sonoma 0.5 mi from Freestone (along Bohemian Hwy at Freeston Flat Road) Comment
  UCD92206  Poa Collector Unknown 1941-5-1 371 Sonoma near Wright School. Comment
  UCR275260  Poa Peter Rubtzoff 1976-5-30 8572 Sonoma North Coast Range, Kenwood Marsh 120 Comment
  RSA0021491  Poa Peter Rubtzoff 1976-5-30 8560 Sonoma Kenwood Marsh Comment
  CAS-BOT-BC173704  Poa annua Peter Rubtzoff 1989-4-30 9990 Sonoma Near Russian River, ca. 6 miles east of Guerneville, at 9850 River Road. Comment
  CAS-BOT-BC255602  Poa annua Peter Rubtzoff 1953-5-16 1361 Sonoma Vacation Beach, near Guerneville, Banks of Russian River Comment
  UCD90366  Poa annua Gerry North 1993-4 4 Sonoma Sugarloaf Ridge State Park. About 50 miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. At Goodspeed trailhead pullout. 213 Comment
  UCD90681  Poa bulbosa G. F. Hrusa; R. Gross 1995-4-1 12034 Sonoma Foote Ranch at NE corner of Hwy. 128 and Ida Clayton Rd., Knights Valley. 150 Comment
  CAS-BOT-BC255057  Poa compressa Catherine Best 1981-4-4 s.n. Sonoma Watson School, Bodega Highway, about 3 miles W of Freestone Comment
  CAS-BOT-BC256025  Poa pratensis David L. Morgan 1961-5-13 s.n. Sonoma Western Ave. and Liberty St., Petaluma Comment
  SEINET11688534  Poa secunda C. F. Quibell 1980-1 1427 Sonoma Geysers Geothermal area, floristic survey for P.G & E (Vic. unit 18) Comment
  UCD15864  Poa secunda Gerry North 1993-3 34 Sonoma Sugarloaf Ridge State Park. About 40 air miles N of San Francisco; about 11 air miles E of Santa Rosa and 2.5 air miles NE of Kenwood. At lower camping area. 50m East of foot bridge. 365 Comment
  UCD92089  Poa secunda subsp. secunda L. Whitney 1935-3-16 s.n. Sonoma Near Occidental. Comment
  RSA129473  Poa trivialis H. S. Yates 1937-5-30 6558 Sonoma 1 1/2 miles N of Freestone. 91 Comment
  CAS-BOT-BC244263  Poa unilateralis Catherine Best 1985-5-15 1099 Sonoma Bodega Head Comment
  CAS-BOT-BC244264  Poa unilateralis Catherine Best 1984-5-11 935 Sonoma Above the ocean at Salt Point State Park Comment
  CAS-BOT-BC368003  Poaceae Greg de Nevers 1989-6-8 9079 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 400 Comment
  JEPS81440  Pogogyne douglasii L. R. Heckard 1982-7-24 5827 A Sonoma Old Naval Air Station Comment
  POM283137  Pogogyne douglasii subsp. parviflora Lyman Benson 1930-6-18 2163 Sonoma South of Santa Rosa. 61 Comment
  JEPS128176  Polygala californica Roger Raiche 2001-5-17 025 .01 Sonoma The Cedars. Gualala River, Wheatfield Fork watershed. Comment
  UC1541612  Polygala californica H. E. and S. T. Parks 1930-5-9 627 Sonoma near head Alexander Valley Comment
  CAS-BOT-BC110531  Polygonum Peter Rubtzoff 1975-8-28 8363 Sonoma Kenwood Marsh. Comment
  UC6718  Polygonum amphibium var. emersum Alice King June 1897 Sonoma Healdsburg Comment
  JEPS87241  Polygonum amphibium var. stipulaceum Jack and Betty Guggolz 1992-6-22 1318 Sonoma pond in cattle pasture se Bloomfield Road 36 Comment
  CAS-BOT-BC164078  Polygonum arenastrum Peter Rubtzoff 1956-9-14 2887 Sonoma Vacation Beach, near Guerneville. Russian River. Comment
  RSA234469  Polygonum hydropiper Peter Rubtzoff 1966-9-25 5821 Sonoma Laguna de Santa Rosa E of Graton, betw. Occidental and Guerneville Roads. Comment
  CAS-BOT-BC72013  Polypodium californicum Margot Lowry 1983-5-1 42 Sonoma Ca. one mile from top of Sonoma Mtn. Rd. on Sonoma Mtn., along roadside 500 Comment
  JEPS76924  Polypodium calirhiza Robert M. Lloyd 1963-2-24 2055 Sonoma 4 mi. s. of State Hwy. 12 on State Hwy. 1 (above hwy.) 15 Comment
  CAS-BOT-BC76863  Polypodium calirhiza A. T. Graff 1926-2-1 s.n. Sonoma Cazadero Comment
  CAS-BOT-BC76897  Polypodium calirhiza Milo S. Baker 1944-6-1 10886 Sonoma 1 1/2 mi N of Sonoma town in the hills along an established road. Comment
  UC1784201  Polypodium scouleri Ethel Crum 1930-1 748 Sonoma Petaluma Comment
  UC353928  Polypodium scouleri Milo S. Baker 1928-4-14 2979 b Sonoma n and w faces of rock near Bay Comment
  CAS-BOT-BC312686  Polypogon Peter Rubtzoff 1983-8-28 9673 Sonoma Austin Creek ca. 0.5 miles north of Hwy. 116 on Cazadero Road. Comment
  RSA0023070  Polypogon Peter Rubtzoff 1964-7-14 5402 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC233186  Polypogon interruptus Greg de Nevers 1992-6-26 10211 Sonoma Along Franz Creek. Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road 91 Comment
  RSA227229  Polypogon maritimus Peter Rubtzoff 1961-6-17 4628 Sonoma Bennett Mtn. Lake. Comment
  CAS-BOT-BC237398  Polypogon monspeliensis Greg de Nevers 1981-5-12 1142 Sonoma Pepperwood Ranch. At the Red Corral, Old McCann Homestead Comment
  UC71449  Polystichum Bioletti 1894-12-25 Sonoma Graham Canyon Comment
  JEPS33241  Polystichum californicum F. T. Bioletti 1892-5-31 Sonoma Hood's Peak Comment
  UCD136560  Polystichum munitum Mary M. Hektner; Cathy Hendel, Sue Dakuzaku 1974-6-19 025 Sonoma Unit 24 Owners' Map, Sea Ranch, near State Highway 1, near old 'railroad' bridge. 30 Comment
  UCR128486  Polystichum munitum John Taylor, Connie Taylor 1971-5-29 8031 Sonoma 1 mile north of Guerneville at Kings Canyon Camp, in coastal hills 20 Comment
  CAS-BOT-BC72485  Polystichum munitum A. T. Graff 1926-2-1 s.n. Sonoma Cazadero Comment
  RSA620430  Portulaca oleracea Peter Rubtzoff 1965-8-22 5610 Sonoma Russian River, Forest Hills 5.5 mi. east of Guerneville. Open, moist bank of river bottom. Comment
  CAS-BOT-BC274037  Potamogeton crispus Peter Rubtzoff 1970-10-3 6407 Sonoma Dune pond near U.C. Bodega Marine Laboratory. Comment
  CAS-BOT-BC258004  Potamogeton foliosus Peter Rubtzoff 1970-10-3 6409 Sonoma Dune pond near U.C. Bodega Marine Laboratory. Comment
  RSA800333  Potamogeton nodosus Peter Rubtzoff, Vanette Bunyan, Nancy Harrison, Marion Weiger 1974-8-5 7812 Sonoma Kenwood Marsh. Comment
  UCD165769  Potamogeton nodosus Peter Rubtzoff 1973-8-27 7267 Sonoma Upper Green Valley Marsh area. Comment
  CAS-BOT-BC257678  Potamogeton nodosus Peter Rubtzoff 1971-9-30 6716 Sonoma Spring Creek Reservoir area. Comment
  RSA800785  Potamogeton nodosus Peter Rubtzoff 1971-9-1 6669 Sonoma Spring Creek Reservoir area Comment
  CAS-BOT-BC268090  Potamogeton pusillus Peter Rubtzoff 1955-8-27 2104 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC141953  Potentilla anserina subsp. pacifica Peter Rubtzoff 1955-8-20 2066 Sonoma Bodega Harbor Marsh - Sonoma County Marshes Comment
  CAS-BOT-BC141954  Potentilla anserina subsp. pacifica Peter Rubtzoff 1955-8-20 2066 Sonoma Bodega Harbor Marsh - Sonoma County Marshes Comment
  CAS-BOT-BC141959  Potentilla anserina subsp. pacifica Walter Knight; Irja Knight 1963-8-13 212 Sonoma Horseshoe Cove Comment
  CAS-BOT-BC26647  Potentilla uliginosa Milo S. Baker 1947-6-26 11831 Sonoma Cunningham Marsh ca 1 mi southwest of Cunningham Station Comment
  CAS-BOT-BC516401  Prosartes hookeri Greg de Nevers 1993-3-24 10330 Sonoma Weimar Canyon, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road 304 Comment
  UCD139798  Prosartes hookeri M. Wiesendanger 1927-5-5 728 Sonoma Kenwood Springs. Comment
  HSC15461  Prosartes hookeri James Faro 1962-4-18 7 Sonoma 5 mi. N of Guerneville on Old Cazadero Rd. Comment
  UCR90890  Prunella vulgaris Kathy Harper, Dane Karr 1994-6-10 s.n. Sonoma North Coast Range, King Ridge Road along Big Austin Creek, north of Cazadero 122 Comment
  CAS-BOT-BC488337  Prunella vulgaris var. lanceolata James A. Neilson, Jr. 1974-7-10 2813 Sonoma Mayacmas Mountains, 1/4 mi S of Geyser Rock, W of Whispering Pines, NE Sonoma Co. 1082 Comment
  UC1288496  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-8-3 646 Sonoma Pitkin Marsh Comment
  UC449934  Prunella vulgaris var. lanceolata Franklin P. Nutting Sonoma Taylor Creek Comment
  CAS-BOT-BC159826  Prunus angustifolia Peter Rubtzoff 1952-5-31 1107 Sonoma Western branch of the Upper Marsh. Pitkin Marsh, near Forestville Comment
  CAS-BOT-BC159846  Prunus cerasifera Greg de Nevers 2002-3-12 12646 Sonoma North of Stewart Creek, near old homestead. Bouverie Audubon Preserve, Highway 12, Glen Ellen Comment
  CAS-BOT-BC159902  Prunus emarginata T. E. Rawlins 1942-9-1 s.n. Sonoma Fort Ross Comment
  UC699661  Prunus serotina T. E. Rawlins September, 1942 Sonoma Fort Ross Comment
  CAS-BOT-BC368069  Prunus virginiana var. demissa Greg de Nevers 1998-6-2 11267 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Franz Valley School Road at Bordjeiffs. 400 Comment
  CAS-BOT-BC356927  Pseudognaphalium californicum G. DeNevers 1981-9-5 1828 Sonoma Pepperwood Ranch. N of Pippindale Garden Comment
  CAS-BOT-BC361616  Pseudognaphalium stramineum Roxana S. Ferris 1937-8-18 9375 Sonoma At mouth of Salmon Creek on Bodega Bay Comment
  CAS-BOT-BC361620  Pseudognaphalium stramineum Walter Knight; Irja Knight 1963-8-31 182 Sonoma Magnolia Ave. in ditch - Petaluma Comment
  UCD135205  Pseudognaphalium stramineum P. G. Connors 1992-6-9 276 Sonoma Bodega Head and Dunes. Comment
  CAS-BOT-BC176177  Psilocarphus Peter Rubtzoff 1970-5-30 6250 Sonoma 5 miles north of Sears Point. Comment
  RSA784564  Psilocarphus Peter Rubtzoff 1963-7-14 5203 Sonoma Laguna de Santa Rosa, east of Graton. Comment
  RSA784565  Psilocarphus Peter Rubtzoff 1966-5-30 5746 Sonoma Laguna de Santa Rosa, northwest of Graton, at end of Piner Road Comment
  UCD166297  Psilocarphus Peter Rubtzoff 1966-5-30 5746 Sonoma Laguna de Santa Rosa, northwest of Graton, at end of Piner Road. Comment
  UCD167966  Psilocarphus James Neilson 1977-6-12 3921 Sonoma Mayacmas Mountains, McMicking Ranch, well site 2. (McMicking Ranch is also known as Santa Angelina Ranch and is in the vicinity of Knights Valley and Coon Creek.) Comment
  CAS-BOT-BC362075  Psilocarphus tenellus G. DeNevers 1981-4-30 889 Sonoma Pepperwood Ranch. At Pippindale Garden Comment
  CAS-BOT-BC72690  Pteridium aquilinum Peter Rubtzoff 1951-8-18 613 Sonoma Uppermost part of the western branch of the Upper Marsh Comment
  UCSB50254  Pteridium aquilinum Gray, John 1976-5-1 Sonoma Above Blind Beach, Sonoma State Beach. T7N R11W 60 Comment
  CAS-BOT-BC334469  Pyracantha fortuneana G. K. Helmkamp; E. A. Helmkamp 2010-6-5 16254 Sonoma North Coast Ranges: junction of Martinelli Rd and River Rd, 4.65 air mi. due E of Guerneville 9 Comment
  UC1751199  Pyrola picta Katharine Brandegee 1910-5-18 Sonoma Mount St. Helena Comment
  CAS-BOT-BC94702  Quercus X howellii D. E. Breedlove 1980-6-27 44759 Sonoma Pepperwood Ranch W of Knights Valley Comment
  UC336261  Quercus X morehus Hy. Edwards April 1877 208 Sonoma Knights Valley Comment
  UC748500  Quercus X morehus Milo S. Baker 1946-8-17 11568 Sonoma about 1.5 mi w (air line) Cunningham (near residence of Mr. Voit) Comment
  CAS-BOT-BC61628  Quercus agrifolia G. DeNevers 1981-4-4 663 Sonoma Along ridge N of Garrison Canyon. Pepperwood Ranch Comment
  UC1193301  Quercus agrifolia R. H. Neuns 1950-4-26 96 Sonoma 5 mi w Geysers (Sulphur Creed Rd, Quad 60B3) 487 Comment
  UCSB22673  Quercus agrifolia var. agrifolia McCarthy, Sharon 1965-4-16 Sonoma Approximately 0.5 mile north of bridge at Leveroni Rd., Sonoma 25 Comment
  UCD162764  Quercus berberidifolia Dylan O. Burge 2014-6-5 1643 Sonoma Mayacmas Mountains, western slope of Hooker Canyon, at Elarra Reserve. 500 Comment
  UCD45276  Quercus berberidifolia Roman Gankin 1967-10-4 1078 4 Sonoma Near Rocky Mountain, north of Guerneville, Sonoma County, California. Comment
  UCD45290  Quercus berberidifolia Frederica Bowcutt 1994-6-25 1920 Sonoma 670 Comment
  CAS-BOT-BC86008  Quercus douglasii Walter Knight; Irja Knight; Tiffany Knight 1985-6-30 5391 Sonoma Pine Mountain rd. Comment
  UC1193272  Quercus douglasii G. W. Tourtillott 1950-4-28 14 Sonoma 1 mi e Hale ranch; Sulphur Creek 213 Comment
  CAS-BOT-BC79567  Quercus dumosa Walter Knight; Irja Knight; Tiffany Knight 1985-6-30 5141 Sonoma Pine Flat Road 335 Comment
  UCD46181  Quercus dumosa J. M. Tucker 1977-6-16 4395 Sonoma On Shurtleff Ranch off Chalk Hill Road to the east, ca. 4 miles (air-line) northeast of East Windsor (or ca. 10 miles, airline, north-northwest of Santa Rosa), Sonoma County, California. 121 Comment
  CAS-BOT-BC94153  Quercus durata D. E. Breedlove 1962-6-6 2904 Sonoma on State Highway 128, 4.0 miles NW of U.S. Highway 101 at Cloverdale 289 Comment
  CDA127  Quercus durata D. G. Kelch, A. G. Murdock, Ben Carter 2007-5-13 7 .283 Sonoma Cavedale Rd. Comment
  SD88422  Quercus durata Darley F. Howe 1972-4-28 Sonoma Mt Hood Range, Trinity Road 395 Comment
  SD99409  Quercus durata Christopher Davidson 1977-6-20 6012 Sonoma 8.6 miles west of Geyserville, on Dry Creek Road 91 Comment
  SEINET12030393  Quercus durata W. Knight, Knight, I.; Howell, J. T. 1984-1 5103 Sonoma 2.65 mi up Cavedale Rd from Hwy 12 Comment
  CAS-BOT-BC94669  Quercus garryana Lewis S. Rose 1964-8-26 64066 Sonoma 6 miles N of Penngrove 365 Comment
  CAS-BOT-BC105481  Quercus kelloggii Alice Eastwood 1921-4-24 10389 Sonoma Santa Rosa Comment
  OBI14248  Quercus kelloggii Robert F. Hoover 1969-9-1 11570 Sonoma Comment
  SEINET2066832 Image available Quercus kelloggii Lewis S. Rose 1964-6-27 Sonoma 2 miles n of Sonoma 274 Comment
  SEINET12031933  Quercus kelloggii W. Knight, Knight, I.; Knight, T. 1985-1 6350 Sonoma between Jimtown and geothermal area Comment
  CAS-BOT-BC62806  Quercus lobata W. R. Dudley 1895-2-23 s.n. Sonoma near Knight Valley Winery Comment
  CDA23789  Quercus lobata D. G. Kelch 2006-10-4 06 .497-B Sonoma Entrance to Bouverie Reserve. 2 km N of Agua Caliente along Rte 12. Comment
  CAS-BOT-BC378687  Ranunculus californicus var. californicus Walter Knight; Irja Knight 1964-3-11 564 Sonoma Petaluma, Cor. La Cresta Dr. and Summit Dr. Comment
  POM150446  Ranunculus californicus var. gratus A. A. Heller, H. E. Brown 1902-3-16 5078 Sonoma Russian River, Near Trenton. Comment
  CAS-BOT-BC83438  Ranunculus lobbii A. A. Heller; H. E. Brown 1902-3-14 5060 Sonoma Near Windsor. Comment
  RSA534579  Ranunculus lobbii Peter Rubtzoff 1962-4-11 s.n. Sonoma Americano Creek area just south of Bloomfield, near Petaluma-Valley Ford Road Comment
  UCD96163  Ranunculus lobbii G. F. Hrusa; A. Buckman, R. Gross 1995-4-1 12030 Sonoma Lagunda de Santa Rosa, Todd Rd. Reserve, near corner of Todd Rd. and Llano Rd. 75 Comment
  JEPS55144  Ranunculus muricatus W. L. Jepson 1911-4-30 4189 Sonoma near Glen Ellen; Sonoma Valley, Eldridge 60 Comment
  RSA534614  Ranunculus occidentalis var. eisenii Peter Rubtzoff 1974-4-17 7368 Sonoma Upper Green Valley Marsh area. Comment
  POM202750  Ranunculus orthorhynchus var. bloomeri I. L. Wiggins 1932-3-12 5757 Sonoma roadside ditch, Knight's Valley Comment
  UC480962  Ranunculus pusillus Katharine Brandegee Sonoma Sebastopol Comment
  CDA18779  Raphanus sativus Boris Korotyaev 2000-3-28 s.n. Sonoma Northern California; Bodega Bay. 0 Comment
  CDA31337  Rhamnus californica D. G. Kelch, Ed Biffin 2010-5-3 10 .193 Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  RSA289508  Rhamnus californica Edward Lee 1936-6-8 2213 Sonoma trail 3A (N Ridge to Smith Creek), Bohemian Grove Comment
  CAS-BOT-BC55945  Rhamnus crocea G. DeNevers 1981-4-30 893 Sonoma W arm of Garrison Canyon Comment
  CDA11980  Rhamnus tomentella subsp. tomentella G. F. Hrusa, T. D. Wilfred 1995-12-3 12485 Sonoma North Coast Biodiversity Arena; W-facing slope of main ridge running SW from Chalk Mtn. NW base of Mt. St. Helena. Comment
  CAS-BOT-BC53744  Rhododendron columbianum Peter Rubtzoff 1951-6-2 106 Sonoma Pitkin Marsh, near Forestville - Western branch of the Upper Marsh Comment
  CAS-BOT-BC56599  Rhododendron macrophyllum Mary P. Wells 1983-8-3 162 Sonoma Pygmy Forest, Timber Preserve of Oceanic of California, Inc., The Sea Ranch Comment
  UC634742  Rhododendron macrophyllum H. L. Mason 1928-7-11 4896 Sonoma 2 mi n of Fort Ross Comment
  CAS-BOT-BC200350  Rhododendron occidentale var. occidentale Peter Rubtzoff 1951-6-2 89 Sonoma Uppermost part of the western branch of the Upper Marsh Comment
  CDA32767  Rhododendron occidentale var. occidentale G. F. Hrusa 1988-5-18 5576 Sonoma Outer North Coast Ranges; W side of Hwy 1 between Salt Point State Park and Kruse Ranch rd. 30 Comment
  RSA0037117  Rhododendron sonomense G. Fred Hrusa 1989-5-8 6097 Sonoma Hogback Mtn. at headwaters of Agua Caliente and Nathanson Creeks NE of Sonoma. 518 Comment
  CAS-BOT-BC111870  Rhynchospora alba Peter Rubtzoff 1951-6-16 252 Sonoma Pitkin Marsh: Uppermost part of the western branch of the Upper Marsh Comment
  RSA90513  Rhynchospora alba Milo S. Baker 1945-7-18 11113 Sonoma Pitkin Marsh, upper bog Comment
  CAS-BOT-BC6187  Rhynchospora californica John Thomas Howell 1936-7-26 12679 Sonoma Pitkin Marsh, 5 miles N of Sebastopol Comment
  NY51372  Rhynchospora californica J. T. Howell 1936-7-26 12679 Sonoma Pitkin Marsh, 5 mi N of Sebastopol. Comment
  UCD141233  Rhynchospora capitellata John Thomas Howell 1945-7-18 21318 Sonoma Pitkin Marsh. Comment
  UC963895  Rhynchospora globularis var. globularis Milo S. Baker 1945-8-14 11145 Sonoma on Gravestein Hwy about 2 mi n Sebastopol; Twin Pine Ranch, Perry Marsh Comment
  CAS-BOT-BC111926  Rhynchospora recognita John Thomas Howell 1947-6-26 23313 Sonoma Cunningham Marsh Comment
  HSC100099  Ribes californicum var. californicum J. P. Smith, & J. O. Sawyer 2010-4-26 12718 Sonoma 211 Comment
Read comments
Nov 24 2014
  CAS-BOT-BC168993  Ribes divaricatum var. pubiflorum Peter Rubtzoff 1952-3-23 899 Sonoma Damp area north of the Lower Marsh - Pitkin Marsh, near Forestville Comment
  CAS-BOT-BC168994  Ribes divaricatum var. pubiflorum Peter Rubtzoff 1954-6-19 1492 Sonoma Guerneville Marsh Comment
  CAS-BOT-BC168999  Ribes divaricatum var. pubiflorum Peter Rubtzoff 1952-3-23 899 Sonoma Damp area north of the Lower Marsh - Pitkin Marsh, near Forestville Comment
  UCD102254  Ribes inerme var. inerme Frederica Bowcutt; Jolie Henricks, Jeff Kennedy 1994-5-1 1780 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. Campground S of Sonoma Creek approx. 150 yds 1/4 mile NW of confluence with Rattlesnake Creek, toe of Sugarloaf Ridge. 350 Comment
  CAS-BOT-BC74692  Rorippa curvisiliqua Peter Rubtzoff 1954-7-3 1516 Sonoma Vacation Beach, near Guernville. Beach of Russian River. Comment
  UCD150847  Rorippa curvisiliqua Ayzik Solomescsh 2009-5-14 s.n. Sonoma 2.3 km. southeast of city of Sebastopol. Santa Rosa Plain, Cooper Site, pool 1. Elevation estimated from Google Earth by label maker. 22 Comment
  CAS-BOT-BC251219  Rosa Peter Rubtzoff 1973-9-9 7314 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC371459  Rosa Greg de Nevers 1989-4-1 9071 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 400 Comment
  UCR254919  Rosa Greg de Nevers 1989-1 9071 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC152672  Rosa californica Ynez Whilton Winblad 1941-6-20 s.n. Sonoma Between Santa Rosa and Ukiah, Highway 101 Comment
  POM187580  Rosa gymnocarpa Marcus E. Jones 1931-7-5 29009 Sonoma West of Cloverdale. Comment
  CAS-BOT-BC146775  Rosa gymnocarpa G. DeNevers 1982-5-18 2034 Sonoma Near Redwoods end at the Redwoods Comment
  CAS-BOT-BC148296  Rosa pinetorum Greg de Nevers 1991-12-18 9839 Sonoma Pepperwood Naturual Preserve, 3450 Franz Valley Road, along Franz Valley Rd. by road cut below Al Cuneo's house. 475 Comment
  CAS-BOT-BC148199  Rosa rubiginosa Dorothy Scherer 1997-5-20 121 Sonoma Ca. 100' north of Russian Orchard, along path to Sag Ponds, Fort Ross State Historic Park 106 Comment
  UC905110  Rosa spithamea Milo S. Baker 1947-5-8 11755 Sonoma top of Rose Butte Hood Mt. (w slope of mt.) 243 Comment
  RSA63654  Rosa spithamea Milo S. Baker 1947-5-8 11755 Sonoma W slope of Hood Mt, burned chaparral, at top of Rose Butte. 244 Comment
  POM91634  Rubus macropetalus Marcus E. Jones 1882-7-18 s.n. Sonoma Duncan's Mills. Comment
  UCD113853  Rubus parviflorus Mary M. Hektner 1975-6-3 206 Sonoma coastward from Halycon Road, Unit 35-A Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC156663  Rubus spectabilis A. A. Heller; H. E. Brown 1902-3-29 5184 Sonoma Bodega Bay Comment
  CAS-BOT-BC262817  Rubus spectabilis Peter Rubtzoff 1957-4-28 3291 Sonoma Duncans Mills Marsh; lower part of the marsh. Comment
  UCD113815  Rubus spectabilis Mary M. Hektner 1974-6-2 12 Sonoma paralleling Fish Rock Road, just below Leeward Road, Unit 35-A Owners' Map, Sea Ranch, near State Highway 1. Comment
  UCR279611  Rubus spectabilis Peter Rubtzoff 1959-6-6 4089 Sonoma Willow Creek Marsh 9 Comment
  CAS-BOT-BC166722  Rumex Peter Rubtzoff 1961-8-24 4707 Sonoma Fife Creek Marsh. Comment
  RSA784602  Rumex Peter Rubtzoff 1964-7-29 5452 Sonoma Bodega Bay Marsh. Comment
  CAS-BOT-BC422237  Rumex acetosella Blanca Barrell 1982-8-7 s.n. Sonoma The Sea Ranch Comment
  CAS-BOT-BC166705  Rumex conglomeratus Peter Rubtzoff 1957-8-17 3510 Sonoma Occidental Marsh. Comment
  CAS-BOT-BC421848  Rumex conglomeratus Walter Knight; Irja Knight 1963-8-13 156 Sonoma Horseshoe Cove Comment
  CAS-BOT-BC433744  Rumex occidentalis J. W. Congdon 1890-5-23 s.n. Sonoma Petaluma Comment
  CDA2888  Rumex pulcher G. D. Barbe 1982-5-27 3621 Sonoma 3.6 miles east of Stewarts Point (Highway 1) on Scaggs Spring Road. Comment
  SDSU9724  Rumex pulcher D. F. Howe 1963-7-2 3579 Sonoma 4.2 miles N of juction with #12, on #1. Comment
  CAS-BOT-BC258034  Rumex salicifolius Peter Rubtzoff; Nancy Harrison 1974-9-7 7884 Sonoma Hinebaugh Creek in Rohnert Park, east of Commerce Blvd. Comment
  RSA216138  Ruppia maritima Peter Rubtzoff 1962-8-3 5033 Sonoma Lower Salmon Creek Marsh. In rather deep water of Salmon Creek. Comment
  CAS-BOT-BC239853  Rytidosperma penicillatum J. C. Roos 1957-7-2 6651 Sonoma Miller Ridge Comment
  CAS-BOT-BC239854  Rytidosperma penicillatum Mary P. Wells 1983-8-3 s.n. Sonoma Timber Preserve of Oceanic of California, Inc., The Sea Ranch Comment
  SEINET1906227  Rytidosperma penicillatum Barbara Ertter 2003-1 18246 Sonoma Bidega Bay, coastal meadow behind community center on west side of Hwy 1north of town. Comment
  CAS-BOT-BC259174  Sagina Peter Rubtzoff 1966-4-30 5694 Sonoma Todd Road, 1.4 miles from Highway 16 and 0.6 miles from Llano Road. Comment
  UC905115  Sagina decumbens subsp. occidentalis Milo S. Baker 1947-4-25 11703 Sonoma e. of football field Santa Rosa Jr. College Comment
  CAS-BOT-BC445687  Sagittaria cuneata Volney Rattan 1877-6-22 s.n. Sonoma Healdsburg Comment
  CAS-BOT-BC445781  Sagittaria latifolia John Thomas Howell 1945-7-18 21316 Sonoma Pitkin Marsh Comment
  SEINET3895885  Sagittaria latifolia Lewis S. Rose 1960-9-14 60091 Sonoma Laguna de Santa Rosa 2 mi. e. of Graton.; 0 15 Comment
  CAS-BOT-BC445777  Sagittaria latifolia Peter Rubtzoff 1963-10-9 5297 Sonoma Laguna de Santa Rosa east of Graton. Comment
  UC903712  Salicornia europaea Milo S. Baker 1946-10 11661 Sonoma 1 mi n junction with Sears Point Hwy. (e of hwy) Comment
  UCR249034  Salix Peter Rubtzoff 1955-4-9 1770 Sonoma Forestville Marsh 71 Comment
  UCR249334  Salix babylonica Peter Rubtzoff 1955-8-14 2051 Sonoma Forestville Marsh 71 Comment
  RSA534567  Salix bonplandiana Peter Rubtzoff 1953-5-16 1359 Sonoma Vacation Beach. Near Guerneville. along Russian River. Comment
  RSA534502  Salix exigua Peter Rubtzoff 1957-5-26 3371 Sonoma Vacation Beach. Near Guerneville. Russian River. Comment
  RSA534608  Salix exigua Peter Rubtzoff 1953-5-16 1358 Sonoma Vacation Beach. Near Guerneville. along Russian River. Comment
  CAS-BOT-BC103941  Salix exigua H. K. Wagnon 1988-8-8 1798 Sonoma Confluence of Maacama Crk. and Russian River Comment
  UC66147  Salix exigua var. hindsiana A. A. Heller 1902-4-8 5224 Sonoma Bennett Valley se of Santa Rosa Comment
  CAS-BOT-BC107756  Salix hindsiana G. De Nevers 1981-5-20 1236 Sonoma Pepperwood Ranch - along Leslie Creek, 100 m above confluence with Mark West Creek Comment
  CAS-BOT-BC106847  Salix hookeriana Mary P. Wells 1981-4-18 s.n. Sonoma Draw, Unit 24, The Sea Ranch Comment
  RSA155474  Salix laevigata L. S. Rose 1962-4-18 62022 Sonoma 1 mile NW of Freestone. 76 Comment
  CAS-BOT-BC128052  Salix lasiandra var. lasiandra Peter Rubtzoff 1953-5-16 1359 Sonoma Vacation Beach, near Guerneville, bank of Russian River Comment
  CAS-BOT-BC107095  Salix lasiolepis Peter Rubtzoff 1952-6-15 1263 Sonoma Fitch Mtn. Grove, near Healdsburg. Bank of Russian River Comment
  CAS-BOT-BC107256  Salix lasiolepis Greg de Nevers 1990-5-1 9663 A Sonoma Pepperwood Natural Preserve, 3450 Franz Valley Road 457 Comment
  CHSC118273  Salix lasiolepis Barbara L. Wilson 2015-9-22 18818 Sonoma Santa Rosa, Howarth Lake. 71 Comment
  UC511361  Salix lasiolepis Lyman Benson 1930-3-20 1954 Sonoma 4 mi. n. of Santa Rosa; San Francisco Bay watershed, Mayacamas Mt. Range 152 Comment
  UCD111582  Salix lasiolepis Ball; Bracelin, Parks, and Parks 1931-4-21 34 Sonoma Maacama Creek, about 25 km. northwest of Calistoga. Comment
  CAS-BOT-BC107344  Salix lasiolepis var. bigelovii C. R. Ball; B. S. Ball 1933-5-6 2502 Sonoma 4 miles SW of Calistoga, on road to Petrified Forest, and just over Napa County line Comment
  CAS-BOT-BC107349  Salix lasiolepis var. bigelovii Peter Rubtzoff 1962-5-11 4812 Sonoma Laguna de Santa Rosa east of Cunningham (near Llano Road) Comment
  CAS-BOT-BC128317  Salix lasiolepis var. lasiolepis W. A. Setchell 1933-7-2 2 Sonoma Bohemian Grove, well away from the Russian River, Monte Rio Comment
  CAS-BOT-BC125699  Salix melanopsis H. E. McMinn 1922-6-7 183 Sonoma Russian River near Guerneville Comment
  CAS-BOT-BC126182  Salix scouleriana Peter Rubtzoff 1955-8-13 2048 Sonoma Duncans Mills Marsh Comment
  CAS-BOT-BC126193  Salix scouleriana Ynes Mexia 1933-2-18 s.n. Sonoma Four miles south of Camp Meeker Comment
  CAS-BOT-BC126194  Salix scouleriana W. A. Setchell 1933-7-9 3 Sonoma Bohemian Grove, well away from the Russian River, Monte Rio Comment
  CAS-BOT-BC126199  Salix scouleriana Peter Rubtzoff 1951-8-18 627 Sonoma Western branch of the Upper Marsh Comment
  POM219077  Salix scouleriana Baker, Carleton R. Ball, H. P. Bracelin, Crum 1931-5-9 342 Sonoma 2 km E of Occidental on Occidental Grade. Comment
  POM362927  Salix scouleriana Baker, Carleton R. Ball, H. P. Bracelin, Crum 1931-5-9 343 Sonoma 2 km E of Occidental on Occidental Grade. Comment
  RSA10901  Salix scouleriana Milo S. Baker 1933-1 s.n. Sonoma Along Santa-Rosa Hwy. At O'Farrell Hill. 3 miles W of Sebastopol. Comment
  SBBG27421  Salix scouleriana Baker, C. R. Ball, H. Bracelin, Crum 1931-5-9 342 Sonoma 2 km E of Occidental, on Occidental grade Comment
  SBBG28810  Salix scouleriana Baker, C. R. Ball, H. Bracelin, Crum 1931-5-9 343 Sonoma 2 km E of Occidental, on Occidental grade Comment
  UC1010343  Salix scouleriana Milo S. Baker 1929-4-12 3428 a Sonoma w. of Occidental (on Coleman Valley Rd.) Comment
  CAS-BOT-BC128911  Salix sitchensis A. A. Heller 1902-3-12 5044 Sonoma Sonoma Creek, foot of Mt. Hood Comment
  CAS-BOT-BC128948  Salix sitchensis Peter Rubtzoff 1951-8-18 627 Sonoma Western branch of the Upper Marsh Comment
  POM362959  Salix sitchensis Carleton R. Ball, H. P. Bracelin, Harold E. Parks, S. T. Parks 1931-4-21 35 Sonoma Maacama Creek. 25 km NW of Calistoga. Comment
  UC524781  Salix sitchensis W. A. Setchell 1934-7-10 2 Sonoma opposite C. Call's house Fort Ross (Coast Hwy.) 30 Comment
  UC524786  Salix sitchensis W. A. Setchell 1934-7-10 4 Sonoma Coast Hwy. above Fort Ross (Kru's Ranch) Comment
  UC726375  Salix sitchensis A. A. Heller 1900-3-12 5044 Sonoma e. flank Mt. Hood (Sonoma Creek); , Sonoma Creek Comment
Read comments
May 1 2014
  CAS-BOT-BC176914  Salsola tragus Catherine Best 1986-11-16 1232 Sonoma At the edge of Hwy. 121 near the railroad crossing Comment
  CAS-BOT-BC366941  Salvia columbariae Greg de Nevers 1993-5-30 10466 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa along Piney Canyon Rd. from Bald Hills 400 Comment
  CAS-BOT-BC225216  Salvia sonomensis Walter Knight; Irja Knight 1963-10-27 437 Sonoma Spring Mt. Rd. Comment
  CAS-BOT-BC225220  Salvia sonomensis Mrs. C. A. Burlingame 1921-5-30 s.n. Sonoma Sonoma Comment
  CDA10856  Salvia sonomensis G. F. Hrusa, G. L. Stebbins 1994-4-8 11732 Sonoma North Coast Biodiversity Arena; Cavedale Edaphic Island, 2.5 m. E of Hwy 12. Mayacmas Mts. Comment
  OBI48690  Salvia sonomensis Michener & Bioletti, Bioletti June1893 s.n. Sonoma Hoods Peak Comment
  RSA134121  Salvia sonomensis John H. Thomas 1955-5-22 5189 Sonoma Along St. Helena Road and West Creek, about 2.7 miles west of Sonoma-Napa County line, about 8 miles northeast of Santa Rosa 366 Comment
  UC25740  Salvia sonomensis F. T. Bioletti May 1892 Sonoma Hood's Peak Comment
  UC1005695  Sanicula arctopoides Frank W. Gould 1939-2-25 566 Sonoma Sonoma County 91 Comment
  UC914292  Sanicula arctopoides Verne Grant, Alva Grant 1947-5-4 7955 Sonoma 1 mi from Bodega Bay (on road to Bodega) Comment
  UCR265122  Sanicula bipinnatifida Ann Howald 2015-4-1 3325 Sonoma North Coast Ranges, Stewarts Point-Skaggs Springs Rd, 16.0 miles west of intersection with Rockpile Rd, Wolf Creek drainage 374 Comment
  RSA178020  Sanicula crassicaulis R. F. Thorne 1965-4-19 34313 Sonoma Harrison Grade, 1/2 mile from Green Valley Road. 152 Comment
  OBI55096  Sanicula graveolens L. Constance, L. R. Heckard and A. R. Kruckeberg 1950-5-13 3329 Sonoma Ridge NE of Sulpher crk 4 mi W of Lincoln Rock 762 Comment
  UCD128030  Sanicula laciniata G. F. Hrusa; R. Gross 1996-3-8 12656 Sonoma Northcoast Biodiversity Arena, Foote Creek. Foote Ranch at corner of Ida Clayton Road and Highway 128. 250 Comment
  CDA10851  Sanicula tuberosa G. F. Hrusa, G. L. Stebbins 1994-4-8 11727 Sonoma North Coast Biodiversity Arena; Cavedale Edaphic Island, 2.5 m. E of Hwy 12. Mayacmas Mts. Comment
  UC635550  Saxifraga californica H. L. Mason 1931-3-7 5807 Sonoma 12 mi w of Santa Rosa (Vine Hill School); Vine Hill School Comment
  UCD128133  Scandix pecten-veneris Robert F. Thorne 1965-4-19 34262 Sonoma Cotati, Waters Ranch. 30 Comment
  RSA0022390  Schedonorus arundinaceus Peter Rubtzoff 1960-5-22 4406 Sonoma Laguna de Santa Rosa area east of Graton (between Occidental and Guerneville Roads.) Comment
  UCD161272  Schoenoplectus acutus var. occidentalis James A Neilson Jr.; Teresa A. Sholars 1976-5-10 3686 Sonoma Mayacmas Mountains. Eight miles east of U.S. Highway 101, ca. 1 mile north of the Geysers Road; Aidlin-Gouvea Leasehold. (Elevation and exact location estimated by label maker.) Comment
  CAS-BOT-BC111397  Schoenoplectus acutus var. occidentalis Peter Rubtzoff 1951-7-7 383 Sonoma Eastern branch of the Upper Marsh in the open on damp ground. Comment
  CAS-BOT-BC111431  Schoenoplectus acutus var. occidentalis Peter Rubtzoff 1955-8-6 2017 Sonoma Bodega Head Marsh, open, wet ground. Comment
  UCD50086  Schoenoplectus acutus var. occidentalis P. G. Connors 1991-8-15 205 Sonoma In Clark Marsh with Typha latifolia. Comment
  RSA0019006  Schoenoplectus maritimus Peter Rubtzoff 1970-8-18 6306 Sonoma Five miles north of Sears Point. Comment
  POM186202  Scirpus microcarpus A. A. Heller 1902-6-24 5746 Sonoma Near Burke s Sanitarium. Comment
  UC2160  Scirpus microcarpus Jos. Burtt Davy July 1896 Sonoma on river flats near Guerneville; near Guerneville Comment
  UC1005694  Scoliopus bigelovii Frank W. Gould 1939-2-25 562 Sonoma canyon ca. 2 1/2 mi. s. Ft. Ross 30 Comment
  SEINET12050506  Scoliopus bigelovii F. H. Utech 1988-1 88 -181 Sonoma 0.2 mi S of Occidental Road on Furlough Road, Sturgeon's Mill 80 Comment
  SEINET12058068  Scoliopus bigelovii F. H. Utech, Knight, W.; Knight, I. 1988-3-1 88 -006 Sonoma 5.75 mi W of jct of Willow Creek Rd & Coleman Valley Rd on former near headwater of Willow Creek 60 Comment
  SEINET12058070  Scoliopus bigelovii F. H. Utech, Knight, W.; Knight, I. 1988-3-1 88 -005 Sonoma 6 mi W of junction of Willow Creek Rd & Coleman Valley Rd on former, along Willow Creek 40 Comment
  SEINET12058071  Scoliopus bigelovii F. H. Utech, Knight, W.; Knight, I. 1988-3-1 88 -005 Sonoma 6 mi W of junction of Willow Creek Rd & Coleman Valley Rd on former, along Willow Creek 40 Comment
  JEPS128174  Scrophularia californica Roger Raiche 2001-5-29 041 .01 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  CDA40963  Scutellaria antirrhinoides T. C. Fuller 1958-5-24 4017 Sonoma 1.5 mi. north of Camp Meeker. 0 Comment
  UCR254833  Scutellaria tuberosa Greg de Nevers 1997-4-16 10933 Sonoma North Coast Range, Cavedale Road 152 Comment
  UC733655  Sedum radiatum Dan Axelrod 1931-7-10 2 Sonoma on Fort Ross Road 3 mi n Cazadero (Ward Creek); , n of Cazadero Comment
  JEPS48027  Sedum spathulifolium W. L. Jepson 1923-6-28 10017 Sonoma Kenwood , Kenwood (Sonoma Canyon) 243 Comment
  UCD151222  Sedum spathulifolium James A. Neilson Jr. 1974-5-17 2978 Sonoma Mayacmas Mountains, 1/4 mile south of Geyser Rock, west of Whispering Pines. (Elevation estimated using Google Earth by label maker.) 1082 Comment
  CAS-BOT-BC363428  Senecio aronicoides G. DeNevers 1981-4-25 817 Sonoma Pepperwood Ranch. Along Creek that runs past chicken and goat pens, hillside, near main Pepperwood entrance Comment
  UCR279861  Senecio minimus Peter Rubtzoff 1954-8-13 1706 Sonoma Bodega Head Marsh 2 Comment
  CAS-BOT-BC173681  Senecio vulgaris Peter Rubtzoff 1956-9-14 2896 Sonoma Vacation Beach, near Guerneville, along Russian River. Comment
  RSA791558  Senecio vulgaris Peter Rubtzoff 1973-8-20 7220 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  CAS-BOT-BC364679  Senecio vulgaris John H. Thomas 1976-6-15 18312 Sonoma Southern end of the Sea Ranch, northwestern part of county, about 7 miles south of Gualala 30 Comment
  CDA31319  Sequoia sempervirens D. G. Kelch, Ed Biffin 2010-5-3 10 .195 Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  UC401314  Sequoia sempervirens W. P. Taylor 1913-6-1 Sonoma Freestone Comment
  UC403025  Sequoia sempervirens J. Burtt Davy 1896-8-1 Sonoma Bohemian Camp Guerneville Comment
  CDA31043  Setaria pumila D. G. Kelch, Troy McGregor 2010-8-22 10 .337 Sonoma Geyser Peak Rd. Comment
  CAS-BOT-BC240168  Setaria verticillata Walter Knight; Irja Knight 1963-10-14 413 Sonoma Blomquist Ranch, Penngrove Comment
  RSA264726  Sherardia arvensis Peter Rubtzoff, H. A. Froebe 1971-5-16 6456 Sonoma Duncans Mills Marsh. Comment
  UCR275254  Sidalcea Peter Rubtzoff 1974-5-26 7497 Sonoma Todd Road, 1.4 miles from Hwy 116 and 0.6 miles from Llano Road 29 Comment
  UCR275255  Sidalcea Peter Rubtzoff 1971-6-5 6509 Sonoma 4.25 miles west of Glen Ellen on Bennett Valley Road 244 Comment
  CAS-BOT-BC540823  Sidalcea Peter Rubtzoff; Vanette Bunyan; Nancy Harrison; Marion Weiger 1974-8-5 7814 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC187882  Sidalcea calycosa subsp. rhizomata John Thomas Howell 1945-8-14 21387 Sonoma Perry Marsh Comment
  CHSC13721  Sidalcea diploscypha J. G. Moore 1970-5-29 154 Sonoma Cazadero. Comment
  JEPS50081  Sidalcea diploscypha M. E. and E. Van E. Ferguson Jun 8 1919-Jun 10 1919 Sonoma between Gurneville and Monte Rio; Russian River, btw Gurneville and Monte Rio Comment
  UC1299201  Sidalcea diploscypha Freed W. Hoffman 1950-5-27 3592 Sonoma on Healdsburg-Guerneville Highway North Coast Ranges, Roy Litton Ranch (Roy Litton Ranch) Comment
  RSA448573  Sidalcea hartwegii Cora Mae Life 1924-3-23 14601 Sonoma Petaluma. Comment
  SEINET11998342  Sidalcea malviflora C. F. Quibell 1976-1 1357 Sonoma Meacham Hill, Christo fence route Comment
  UCD116808  Sidalcea malviflora M. Wiesendanger 1927-5-5 704 Sonoma Sonoma County. Comment
  CHSC66957  Sidalcea malviflora subsp. laciniata James D. Jokerst; Lorie May 1993-5-13 3980 Sonoma Sonoma Air Center. Comment
  SD56817  Sidalcea malviflora subsp. laciniata Darley F. Howe 1963-5-22 3522 Sonoma 10 miles west of Santa Rosa, on Vine Hill Road. 152 Comment
  POM126815  Sidalcea malviflora subsp. malviflora M. S. Baker 1899-04 s.n. Sonoma Dillon Beach. Comment
  SDSU8176  Sidalcea malviflora subsp. purpurea D. F. Howe 1966-6-2 4260 Sonoma Coast 3 miles north of Bodega Bay Comment
  CAS-BOT-BC540832  Sidalcea oregana subsp. valida Peter Rubtzoff; Rimo Bacigalupi 1979-8-6 9305 Sonoma Knights Valley. South side of Bavarian Lion Company ranch road, 1.25-1.5 miles west of its junction with Franz Valley Road. Comment
  JEPS45851  Silene californica Eleanor Armstrong 1932-5-28 504 Sonoma 6 mi w of Graton (along Meek[s] grade); w of Graton 60 Comment
  UC1137921  Silene californica H. S. Yates 1934-4-22 3863 Sonoma near Petrified Forest; Calistoga Quad., near Petrified Forest Comment
  CAS-BOT-BC384436  Silene coronaria Peter Rubtzoff 1954-6-19 1498 Sonoma East Guernewood, near Guerneville Comment
  UC1137860  Silene gallica H. S. Yates 1934-4-22 3856 Sonoma 2 mi s Mark West; Calistoga Quad., s of Mark West Comment
  UCD158812  Silene gallica James A. Neilson Jr. 1974-4-16 3169 Sonoma Mayacmas Mountains. Big Geysers. (Elevation estimated using topo map by label maker.) 548 Comment
  CAS-BOT-BC392490  Silene gallica John H. Thomas 1976-6-16 18334 Sonoma Southern part of Sea Ranch, northwestern part of county, about 7 miles south of Gualala. 30 Comment
  CAS-BOT-BC389226  Silene laciniata subsp. californica D. E. Breedlove 1980-6-27 44758 Sonoma Pepperwood Ranch W of Knights Valley Comment
  SBBG14879  Silene laciniata subsp. californica A. I. Richardson 1961-6-16 21 Sonoma Sweetwater Springs Rd, 1 mi beyond turn to Armstrong Redwoods State Park, N of Guerneville Comment
  SBBG71623  Silene laciniata subsp. californica L. Rowntree 1931-7-15 Sonoma Stewart Point to Skaggs Springs Comment
  CAS-BOT-BC75372  Sisymbrium officinale Elizabeth McClintock 1969-4-11 s.n. Sonoma Property of David Pleydell-Bouverie, west of Glen Ellen. Comment
  POM169048  Sisyrinchium bellum A. A. Heller, H. E. Brown 1902-3-26 5154 Sonoma Santa Rosa Creek. Comment
  RSA785733  Sisyrinchium bellum Carrie A. Herd 1982-4-25 77 Sonoma Crane Creek Regional Park,. Comment
  UCD138810  Sisyrinchium bellum Cynthia Hodges 1982-4-8 15 Sonoma 10 miles south Healdsburg on Chalk Hill Road directly off Highway 128. 38 Comment
  SEINET5272562  Sisyrinchium californicum Unknown 1994-4-3 81 Sonoma approx. 6.5mi SE of Gualala in the Sea Ranch community on the Pacific Coast; Hwy 1 Comment
  UCSB11203  Sisyrinchium californicum Breedlove, Dennis 1961-10-31 Sonoma at base of cliff; at S side of mouth of Russian River 6 Comment
  UC1134661  Smilacina racemosa E. Armstrong 1934-3-26 917 Sonoma 2 mi s Camp Meeker; Sebastopol Quadrangle Comment
  CAS-BOT-BC164027  Solanum Peter Rubtzoff 1961-8-22 4685 Sonoma Fife Creek Marsh. Comment
  CAS-BOT-BC164416  Solanum Peter Rubtzoff 1960-9-17 4568 Sonoma Laguna de Santa Rosa, near Trenton (south of Woolsey Road). Comment
  CAS-BOT-BC156446  Solanum umbelliferum P. H. Raven 1951-5-20 2862 Sonoma Oakville to Glen Ellen 274 Comment
  CAS-BOT-BC354317  Solidago Peter Rubtzoff 1955-8-27 2097 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC365657  Solidago spathulata John Thomas Howell 1945-8-14 21409 Sonoma Perry Marsh Comment
  RSA20120  Solidago spathulata Roxana S. Ferris 1937-8-19 9378 Sonoma 1.5 miles north of Fort Ross on State Highway 1. Comment
  CAS-BOT-BC368009  Solidago velutina subsp. californica Greg de Nevers 1989-9-15 9104 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 400 Comment
  CAS-BOT-BC365268  Solidago velutina subsp. californica Walter Knight; Irja Knight 1963-9-22 109 Sonoma Near jct. Mark West Rd. and Calistoga Rd. Comment
  CAS-BOT-BC173831  Soliva sessilis Peter Rubtzoff 1960-5-16 4341 Sonoma Duncans Mills Marsh. Comment
  CAS-BOT-BC365960  Soliva sessilis Catherine Best 1983-10-12 906 Sonoma In the school yard at Watson School on the Bodega Hwy west of Freestone Comment
  UCD32631  Soliva sessilis Beecher Crampton 1954-6-24 2005 Sonoma Sonoma - Napa County: 5 miles northeast Calistoga, along highway 128, in roadbed. Comment
  UCD148422  Sonchus Peter Rubtzoff 1960-5-18 4391 Sonoma Bodega Head Marsh. Comment
  CAS-BOT-BC236589  Sorghum halepense Peter Rubtzoff 1962-9-16 5089 Sonoma Vacation Beach, 1.5 mi. below Guerneville, along Russian River Comment
  CAS-BOT-BC236592  Sorghum halepense Walter Knight; Irja Knight 1963-9-29 227 Sonoma Near Lindberg Lane on Lakeville Highway, Petaluma Comment
  RSA227248  Sparganium angustifolium subsp. emersum Peter Rubtzoff 1954-7-27 1587 Sonoma Guerneville Marsh, in the northwestern end of the marsh. Comment
  SD39609  Spergula arvensis Edith A. Purer 1932-8-21 4053 a Sonoma Bodega Bay. Comment
  SEINET7040127  Spergula arvensis A. G. Vestal 1962-4-11 Sonoma 1 mile east of Occidental. UTM Zone 10, 505896mE, 4250807mN. Comment
  CAS-BOT-BC251284  Spergularia Peter Rubtzoff 1958-9-28 4020 Sonoma Vacation Beach near Guerneville, along Russian River. Comment
  CAS-BOT-BC323963  Spergularia Peter Rubtzoff 1971-7-23 6614 Sonoma Laguna, Chileno Valley. Comment
  CAS-BOT-BC390975  Spergularia marina G. B. Rossbach; R. P. Rossbach 1938-5-27 630 Sonoma Bodega Bay Comment
  UCD160119  Spergularia rubra James A. Neilson Jr. 1973-6-3 2995 Sonoma Mayacmas Mountains. The Geysers. Site I. (Location and elevation of Site I estimated from Neilson 2994 which has Township/Range data and says that Site I is in Geyser Canyon. Coordinates estimated by label maker.) 853 Comment
  UCR275242  Spergularia rubra Peter Rubtzoff 1969-8-14 6130 Sonoma Along Salmon Creek, c. 0.5 mile upstream from Hwy #1 3 Comment
  UCR255517  Spiranthes porrifolia Peter Rubtzoff 1971-6-23 6547 Sonoma 4.25 miles west of Glen Ellen on Bennett Valley Road 229 Comment
  CAS-BOT-BC376238  Spiranthes porrifolia Greg de Nevers 1995-7-20 10762 Sonoma Field redacted by CAS, contact the data manager for more information 487 Comment
  CDA36952  Stachys ajugoides CDFA Staff 1995-5-23 s.n. Sonoma Sugarloaf Ridge State Park; near junction of Meadow, Hillside, and Gray Pine Trails, east of bridge across Sonoma Creek. 0 Comment
  UCLA71586  Stachys ajugoides var. ajugoides John Thomas Howell 1930-6-8 5228 Sonoma 4 mi e Valley Ford (Bodega Road) Comment
  UCLA71594  Stachys ajugoides var. ajugoides C. Epling, Wm. Robison 1935-7-28 Sonoma Shellville Comment
  UCD160979  Stachys albens James A. Neilson Jr. 1975-7-8 3403 Sonoma Mayacmas Mountains. Socrates Mine. (Elevation and coordinates estimated by label maker.) 914 Comment
  SEINET12331118  Stachys rigida subsp. quercetorum F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -179 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd 485 Comment
  SEINET9286426  Stachys rigida var. quercetorum John Nelson, Wnek, Richard 2000-3-7 21352 Sonoma Guerneville Comment
  UCD160883  Stachys rigida var. quercetorum James A. Neilson Jr.; Teresa A. Sholars 1975-6-26 3279 Sonoma Mayacmas Mountains, adjacent to Caldwell Pines, ca. 3 1/2 miles west of Glenbrook and Bottlerock Road, northeast Sonoma County. (Elevation and coordinates estimated by label maker.) 975 Comment
  UCD161301  Stachys rigida var. quercetorum James A Neilson Jr.; Teresa A. Sholars 1976-5-10 3715 Sonoma Mayacmas Mountains. Eight miles east of U.S. Highway 101, ca. 1 mile north of the Geysers Road; Aidlin-Gouvea Leasehold. (Elevation and exact location estimated by label maker.) Comment
  RSA0062827  Stachys stricta Greg de Nevers 1993-8-8 10485 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 100 Comment
  UCD166327  Stellaria Peter Rubtzoff 1967-8-28 5866 Sonoma Hillside depression southeast of Lower Salmon Creek Marsh. Comment
  CAS-BOT-BC251306  Stellaria borealis subsp. sitchana Peter Rubtzoff 1955-7-9 1932 Sonoma Forestville Marsh. Comment
  RSA800338  Stellaria borealis subsp. sitchana Peter Rubtzoff 1955-6-4 1901 Sonoma Forestville Marsh Comment
  POM118621  Stellaria media Marcus E. Jones 1924-4-24 s.n. Sonoma Petaluma Comment
  UC1057441  Stellaria media G. Thomas Robbins 1937-3-27 46 Sonoma Santa Rosa Comment
  CAS-BOT-BC397763  Stellaria media Mary P. Wells 1990-4-9 1041 Sonoma Santa Rosa; Yard in Rincon Valley Comment
  CAS-BOT-BC397764  Stellaria media A. A. Heller 1902-6-10 1041 Sonoma Santa Rosa Comment
  CAS-BOT-BC397769  Stellaria media G. DeNevers 1981-4-2 614 Sonoma Pepperwood Ranch; Along Studio Road at the Mesa. Comment
  UCR255650  Stipa lepida Greg de Nevers 1997-4-24 10964 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, Santa Rosa 400 Comment
  OBI35891  Stipa pulchra David J. Keil 1983-6-29 17205 Sonoma Ca. 10 mi SE of Ft. Ross along Hwy 1 Comment
  SACT002404  Stipa pulchra M. Wiesendanger 1927-5-5 Sonoma Comment
  SEINET10508398 Image available Stipa pulchra A. Arthur Heller 1902-4-9 Heller 5252 Sonoma In a railroad cut three miles S of Healdsburg Comment
  UCR274968  Streptanthus Jack and Betty Guggolz 2000-8-7 1644 Sonoma long-abandoned mining road east of the Crystal Mine 730 Comment
  JEPS78239  Streptanthus barbiger Charley Patterson 1979-6-22 Sonoma ca 3 air mi sw Whispering Pines (recently disturbed fire break); Whispering Pines Quad Comment
Read comments
Apr 16 2007
  CAS-BOT-BC61214  Streptanthus brachiatus Lawrence F. LaPre 1985-6-5 s.n. Sonoma Socrates Mine near Lake County Line, just west of Pine Flats Road. Comment
  UCD167315  Streptanthus brachiatus James Neilson 1977-6-7 3907 Sonoma Mayacmas Mountains, Lunar Point. (Location information obtained from Neilson 3911 which indicated that Lunar Point is west of Locke Cabin. Exact location unknown. Coordinates estimated by label maker.) Comment
  UCD167314  Streptanthus glandulosus James Neilson 1977-6-7 3906 Sonoma Mayacmas Mountains, about 1/3 mi south east Lunar Point. (Location information obtained from Neilson 3911 which indicated that Lunar Point is west of Locke Cabin. Exact location unknown. Coordinates estimated by label maker.) Comment
  CAS-BOT-BC87232  Streptanthus glandulosus subsp. glandulosus John Thomas Howell 1931-4-19 6436 Sonoma Spring Mountain Road, 7.5 miles west of Saint Helena. Comment
  JEPS27974  Streptanthus glandulosus subsp. secundus Rimo Bacigalupi and L. Heckard 1961-6-9 7735 Sonoma 1.75 mi. s.w. Occidental (at junction of Joy Rd. and Bittner Rd.) 249 Comment
  UC1492783  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1950-5-21 3397 Sonoma Coleman Valley North Coast Ranges Comment
  UC1492788  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1950-5-24 3395 Sonoma headwaters of East Austin Creek North Coast Ranges, The Island Comment
  UC985958  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1949-6-4 2904 Sonoma along road at base of mt 2.2 mi from Healdsburg Park (e of Healdsburg); North Coast Ranges, Fitch Mountain Comment
  UC1292749  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1949-6-25 2909 Sonoma Hart Hill gate on road from Cazadero along Morhardt Ridge to Happy Hills Farm North Coast Ranges 441 Comment
  UC985964  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1948-5-24 2337 Sonoma Austin rd just above Great Eastern Quicksilver Mine (near Guerneville); North Coast Ranges Comment
  JEPS128181  Streptanthus morrisonii Roger Raiche 2001-3-17 008 .01 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  JEPS82296  Streptanthus morrisonii Roger Raiche 1983-7-4 30472 Sonoma above Gilliam Creek; East Austin Creek State Recreational Area, Morrison Ridge 304 Comment
  UCD167364  Streptanthus morrisonii James Neilson Date Unknown 4058 Sonoma Creek northeast of Layton Mine buildings. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UCD167365  Streptanthus morrisonii James Neilson Date Unknown 4059 Sonoma Hillside due east of Layton Mines. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UC1492807  Streptanthus morrisonii subsp. hirtiflorus F. W. Hoffman 1948-6-17 2344 Sonoma bluffs and cliff talus above Dorr's Cabin (headwaters of creek); North Coast Ranges, East Austin Creek; above Dorr's cabin, headwaters of East Austin Creek, Sonoma Co. Comment
  UC1492812  Streptanthus tortuosus Freed W. Hoffman 1949-7-9 2849 Sonoma on road from Healdsburg to Geysers 1.4 mi from Geyser-Cloverdale road (ledge 200 ft above road); North Coast Ranges 624 Comment
  UCD161863  Streptanthus tortuosus James A. Neilson Jr. 1978-6-13 3966 Sonoma Mayacmas Mountains. Lookout tower on Mount St. Helena. (Exact location unknown. Coordinates estimated by label maker.) Comment
  CAS-BOT-BC423045  Stylomecon heterophylla L. R. Abrams 1918-4-28 s.n. Sonoma Nr. Burbanks Garden, Santa Rosa Comment
  CAS-BOT-BC258005  Symphoricarpos Peter Rubtzoff 1966-6-5 5754 Sonoma Laguna de Santa Rosa east of Graton, between Occidental and Guerneville roads. Comment
  UCD166222  Symphoricarpos Peter Rubtzoff 1970-6-14 6259 Sonoma Marsh on River Road, about 3 miles west of Fulton. Comment
  UCD166489  Symphoricarpos Peter Rubtzoff 1958-7-19 3760 Sonoma Laguna de Santa Rosa, east of Sebastopol. Comment
  UCD158713  Symphoricarpos albus var. laevigatus Teresa A. Sholars 1976-9-9 s.n. Sonoma Mayacmas Mtns. Ca. 1 mi southeast of the junction of Socrates Mine Rd. and Pine Flat Rd., along Big Sulphur Creek. Elevation estimated by label maker. 792 Comment
  CAS-BOT-BC97820  Symphyotrichum chilense John Thomas Howell 1946-8-17 22870 Sonoma Cunningham Marsh Comment
  CAS-BOT-BC97823  Symphyotrichum chilense Greg de Nevers 1987-1-1 8121 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC98568  Symphyotrichum lentum Peter Rubtzoff 1958-9-6 3971 Sonoma Laguna de Santa Rosa north of cunningham (nr. Todd Rd.) - Sonoma County Marshes Comment
  CAS-BOT-BC99377  Symphyotrichum subspicatum Peter Rubtzoff 1951-9-15 768 Sonoma Lower part of the Upper Marsh; Pitkin Marsh, near Forestville Comment
  CHSC28708  Taraxia ovata R. A. Schlising; C. A. Lawler 1979-4-12 3359 Sonoma S of Petaluma in extreme southern part of county, just N of Marin Co. line along San Antonia Road, 0.3 mi W of Hwy 101. In pasture. Comment
  CAS-BOT-BC447460  Tellima grandiflora Greg de Nevers 1993-5-16 10446 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Along Franz Creek east 3865 Franz Valley Road. 457 Comment
  SEINET7096767  Thermopsis macrophylla var. venosa A. G. Vestal 1955-5-7 s.n. Sonoma On Jonive Road. Ca 4.6 miles west of Sebastipol. NAD27,38? deg. 22' 48ao, -122?_ 54' 01ao (converted to WGS84 decimal degrees) UTM Zone 10, 508701mE, 4247764mN. Comment
  CAS-BOT-BC66825  Thysanocarpus curvipes P. B. Kennedy 1920-5-29 s.n. Sonoma Russian River. Comment
  SEINET11993722  Thysanocarpus curvipes W. Knight, Knight, I.; Edwards, S. 1986-1 5323 Sonoma along trail to summit of Geyser Peak, access from Healdsburg-Geysers Road 853 Comment
  CHSC57363  Thysanocarpus curvipes var. elegans Shelly A. Kirn 1991-3-28 7 Sonoma Ca. 50 yds e of Hwy 101, 0.5 mi n of Cloverdale. 97 Comment
  CAS-BOT-BC447598  Tiarella trifoliata var. unifoliata Volney Rattan 1877-6-14 118 Sonoma Guernville Comment
  SD88502  Tiarella trifoliata var. unifoliata Darley F. Howe 1972-6-27 Sonoma Bank of Duncan Mills Pond Comment
  SJSU474  Tilia dasystyla A. W. Jacobs 1940-5-29 Sonoma residence, Santa Rosa Comment
  JEPS128233  Torilis arvensis Roger Raiche 2000-5-28 115 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UC1084739  Torilis arvensis Milo S. Baker May 1957 13121 Sonoma Brookside Garden Comment
  SEINET10905242  Torreya californica Milo S. Baker 1941-8-4 Baker 8592 Sonoma Canyon near Sea Coast. Comment
  UCD135176  Torreya californica Lalit M. Srivastava 1957-11-1 22 Sonoma At side of State Highway 1, ca. 100 yards south of Fort Ross. 30 Comment
  CDA35358  Toxicodendron diversilobum G. D. Barbe 1974-4-29 1783 Sonoma 1 mile south of Washington School Road on Asti Road, south of Asti. 0 Comment
  JEPS58985  Tracyina rostrata John Thomas Howell 1967-6-17 42599 Sonoma Arthur E. Cooley ranch, at confluence of Galloway and Dry Creeks, n Sonoma County Galloway Creek, Dry Creek 182 Comment
  CAS-BOT-BC323058  Tracyina rostrata John Thomas Howell 1967-6-17 42599 Sonoma On Arthur E. Cooley Ranch at confluence of Galloway adn Dry Creeks, northern Sonoma Co. 182 Comment
  CAS-BOT-BC157684  Tragopogon Peter Rubtzoff; Vanette Bunyan; Nancy Harrison; Marion Weiger 1974-8-5 7807 Sonoma Kenwood Marsh. Comment
  SD58366  Trichostema laxum Harry K. Roberts 1961-6-20 Sonoma Roadside and open areas at summit of Harrison Grade, north and east of Occidental. Comment
  UC1299469  Trichostema laxum Freed W. Hoffman 1946-8-14 787 Sonoma serpentine island E of Camp Meeker; North Coast Ranges Comment
  CAS-BOT-BC173535  Trifolium Peter Rubtzoff 1974-6-2 7511 Sonoma Upper Green Valley Marsh. Comment
  RSA785000  Trifolium Peter Rubtzoff, Nancy Harrison 1978-5-20 9188 Sonoma Cunningham Marsh area, on north side of Blucher Creek Valley. Comment
  CAS-BOT-BC173533  Trifolium Peter Rubtzoff 1974-5-19 7440 Sonoma Laguna de Santa Rosa, east of Graton, between Occidental and Guerneville Roads. Comment
  CAS-BOT-BC173569  Trifolium Peter Rubtzoff 1974-5-18 7421 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  CAS-BOT-BC173636  Trifolium Peter Rubtzoff 1974-5-18 7426 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  CAS-BOT-BC173650  Trifolium Peter Rubtzoff 1974-5-11 7403 Sonoma Laguna de Santa Rosa east of Sebastopol (south of Hwy. 12 crossing). Comment
  RSA784983  Trifolium Peter Rubtzoff 1972-6-23 6783 Sonoma Atascadero Creek Marsh. Comment
  RSA784988  Trifolium Peter Rubtzoff 1974-5-18 7418 Sonoma Todd Road, 1.4 mi from Hwy 116 and 0.6 mi from Llano Road. Comment
  UCSC010632  Trifolium R. Morgan 2014-5-12 5637 a Sonoma Bodega Head Comment
  CAS-BOT-BC376246  Trifolium albopurpureum Greg de Nevers 1995-5-31 10737 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road 487 Comment
  UCD165157  Trifolium barbigerum Peter Rubtzoff 1974-5-19 7441 Sonoma Laguna de Santa Rosa east of Graton, between Occidental and Guerneville roads. Comment
  UCD107904  Trifolium bifidum var. decipiens A. A. Heller; H. E. Brown 1902-4-15 5293 Sonoma Santa Rosa. Comment
  SEINET7062933  Trifolium ciliolatum A. G. Vestal 1947-5-16 s.n. Sonoma About 4.8 miles east of Winsor and northwest of Mark West Springs. UTM Zone 10, 522970mE, 4267388mN. (WGS84/NAD83). 244 Comment
  UCD108303  Trifolium ciliolatum Patti Togioka; Valerie Bullock 1993-5-8 242 b Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Ponygate Trail. 365 Comment
  UC16475  Trifolium depauperatum var. depauperatum W. H. Brewer 1862-4-18 964 Sonoma Sonoma Valley Comment
  UC16480  Trifolium depauperatum var. depauperatum F. T. Bioletti 1892-1 Sonoma Comment
  UC16481  Trifolium depauperatum var. depauperatum F. T. Bioletti 1892-1 Sonoma Comment
  UCD165131  Trifolium depauperatum var. depauperatum Peter Rubtzoff; Walter Lennon 1974-5-11 7393 Sonoma Laguna de Santa Rosa, ca. 1 mile east-southeast of Sebastopol. Comment
  UCD150836  Trifolium depauperatum var. truncatum Ayzik Solomescsh 2009-5-13 s.n. Sonoma Vicinity of Santa Rosa, north of city of Rohnert Park. East of Hwy 101 and south of Horn Ave. Elevation estimated from Google Earth by label maker. 30 Comment
  UCD33226  Trifolium dichotomum Beecher Crampton 1967-5-15 7927 Sonoma Lytton. Comment
  UC1026471  Trifolium dubium Peter Rubtzoff 1951-7-14 439 Sonoma near Forestville (s half of lower marsh, near hwy); Pitkin Marsh Comment
  UCD165162  Trifolium dubium Peter Rubtzoff 1974-5-25 7464 Sonoma Upper Green Valley Marsh. Comment
  UCD108861  Trifolium dubium Caitlin Lewis; William Mutch 1993-4-17 8 Sonoma Sugarloaf Ridge State Park. About 40 air miles N of San Francisco, 11 air miles E of Santa Rosa, and 2.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge and S of Red Mountain 1 mile. Near visitor center. 365 Comment
  UCD143708  Trifolium grayi Beecher Crampton 1955-4-5 2407 Sonoma 2 miles west of Fulton, along Woolsey Road. Comment
  SEINET7067237  Trifolium macraei A. G. Vestal 1947-5-13 s.n. Sonoma Base of dunes, Bodega Head. Coordinate datum: NAD27. UTM Zone 10, 505861mE, 4250832mN. Comment
  CAS-BOT-BC368063  Trifolium microcephalum Greg de Nevers 1998-5-26 11261 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Near Murry Gate 400 Comment
  UC631549  Trifolium microcephalum P. B. Kennedy 1915-5-31 Sonoma Anapolis Comment
  UCD165171  Trifolium microcephalum Peter Rubtzoff 1974-6-2 7510 Sonoma Upper Green Valley Marsh. Comment
  UC1541580  Trifolium microdon H. E. and S. T. Parks 1930-5-9 601 Sonoma Knights Valley 152 Comment
  UC631590  Trifolium microdon P. B. Kennedy 1915-5-31 Sonoma along trails; Del Mar Comment
  SEINET10829861  Trifolium truncatum A. Arthur Heller, H. E. Brown 1902-4-22 Heller s.n. Sonoma Between Santa Rosa and Agua Caliente. Comment
  UCD84286  Trifolium variegatum Ayzik Solomeshch 2009-5-12 s.n. Sonoma Along Bennett Valley Road (between Santa Rosa and Glen Ellen). 189 Comment
  UCD109492  Trifolium variegatum var. major Peter Rubtzoff 1969-5-3 6023 Sonoma Laguna de Santa Rosa east of Sebastopol. Comment
  UC353905  Trifolium variegatum var. melananthum Milo S. Baker 1927-5-8 2142 a Sonoma along Bennett Valley Rd (near Summit) Comment
  UC70390  Trifolium variegatum var. variegatum Milo S. Baker 1898-5-7 587 Sonoma near Glen Ellen Comment
  JEPS117957  Trifolium vesiculosum Zoya Akulova-Barlow 2008-1 Sonoma Cloverdale River Park Comment
  UCR141953  Trifolium willdenovii Beecher Crampton 1967-5-15 7925 Sonoma Coast Range, Lytton, Alexander Valley 122 Comment
  RSA66920  Trifolium willdenovii E. K. Balls 1951-5-3 16403 Sonoma Ca. 1 mi. e. from Petrified Forest, road to Calistoga 610 Comment
  UCD109507  Trifolium willdenovii J. Adams; J. Weick 1993-5-8 272 Sonoma About 40 air miles N of San Francisco; about 11 air miles E of Santa Rosa and 2.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge and S of Red Mtn 1 mile. Comment
  UCD35305  Trifolium willdenovii Beecher Crampton 1955-4-5 2404 Sonoma 2 miles west of Fulton, along Woolsey Road. Comment
  CAS-BOT-BC451982  Triglochin striata Peter Rubtzoff 1973-9-15 7328 Sonoma Lower Salmon Creek Marsh. Slough just east of Hwy. 1. Comment
  SEINET12052826  Trillium albidum F. H. Utech, Kawano, S.; Ohara, M. 1995-1 95 -53 Sonoma 11.5 mi WNW of Lake Sonoma on Skaggs Springs Road along Skaggs Springs Creek Comment
  CAS-BOT-BC520842  Trillium albidum G. DeNevers 1982-4-30 1956 Sonoma Pepperwood Ranch: Riparian area at Mark West Creek and Leslie Creek Comment
  SEINET12049780  Trillium albidum F. H. Utech 1986-1 86 -124 Sonoma ca 3 mi SW on Sonoma Mt. Rd from junction with CA 12, near Jack London Historical Park 200 Comment
  RSA178023  Trillium ovatum Robert F. Thorne 1965-4-19 34314 Sonoma Harrison Grade, 1/2 mile from Green Valley Road. 152 Comment
  OBI9376  Triphysaria eriantha Lewis S. Rose 1965-4-4 65018 Sonoma Sonoma 24 Comment
  UC103157  Triphysaria eriantha subsp. eriantha Michener and Bioletti June 1892 172 Sonoma Shellville Comment
  SEINET6987684  Triphysaria eriantha subsp. eriantha Wanda P. Vestal, A. G. Vestal 1947-5-13 s.n. Sonoma Weedy flat next to maritime grassland; cove at Bodega Head. Comment
  UC76120  Triphysaria eriantha subsp. eriantha Milo S. Baker 1898-3-26 739 Sonoma Reservoir Hills Comment
  UC1745768  Triphysaria versicolor subsp. versicolor Annetta M. Carter 1934-4-29 512 Sonoma 1 mile W of Two Rock junction on road to Tomales. Comment
  UC58260  Triphysaria versicolor subsp. versicolor A. A. Heller 1903-4-23 6607 Sonoma Fort Ross Comment
  CAS-BOT-BC200098  Trisetum canescens Catherine Best 1981-6-5 s.n. Sonoma Skaggs Spring Road 9 miles east of Stewart's [Stewarts] Point Comment
  CAS-BOT-BC200101  Trisetum canescens G. DeNevers 1981-5-20 1231 Sonoma Leslie Creek and Mark West Creek Comment
  UC1133276  Trisetum canescens H. S. Yates 1936-5-16 5609 Sonoma 2 mi se Forestville; Pitkin Marsh, Sebastopol Quad. 30 Comment
  UCD36301  Trisetum canescens Beecher Crampton 1953-5-19 1297 Sonoma Sonoma County, 5 miles west of Calistoga, on Highway 128, at Napa County line. Comment
  UCD93497  Trisetum canescens Beecher Crampton 1955-6-17 2948 Sonoma 4.5 miles S of Cazadero. Comment
  CAS-BOT-BC522362  Triteleia hyacinthina Peter Rubtzoff 1971-6-5 6511 Sonoma Vernal pool 4.25 miles west of Glen Ellen on Bennett Valley Road. Comment
  SEINET7067244  Triteleia laxa A. G. Vestal 1947-5-13 s.n. Sonoma About 5 miles north of Fort Ross on Route 1 and east of Ocean Cove. Coordinate datum: NAD27. Comment
  CAS-BOT-BC527040  Triteleia laxa J. W. Congdon 1880-4-1 111 Sonoma Petaluma Comment
  SEINET7042672  Triteleia laxa A. G. Vestal 1947-5-16 s.n. Sonoma Ca. 5.1 miles east of Windsor. Healdsburd quadrangle UTM Zone 10, 519806mE, 4273479mN. Comment
  CAS-BOT-BC527965  Triteleia peduncularis Greg de Nevers 1987-5-11 s. n. Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Road, Santa Rosa 400 Comment
  CAS-BOT-BC527971  Triteleia peduncularis Peter Rubtzoff; R. Bacigalupi 1971-6-10 6526 Sonoma Grassy flat on South side of W. Railroad Ave. between Fwy. 101 and Stony Point Rd. Comment
  CAS-BOT-BC200493  Triticum aestivum Peter H. Raven 1950-4-6 1594 Sonoma Santa Rosa to Rincon Ridge 60 Comment
  CAS-BOT-BC208025  Ulex europaeus A. A. Heller; H. E. Brown 1902-3-22 5126 Sonoma Among redwood trees West of Sebastopol Comment
  UCD164987  Ulmus Peter Rubtzoff; Nancy Harrison, Ruth Hass 1974-8-31 7854 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC91283  Umbellularia californica Walter Knight; Irja Knight 1964-11-15 774 Sonoma Hood's Peak at Johnson Lake. Comment
  CDA15846  Umbellularia californica G. F. Hrusa, G. L. Stebbins 1993-10-3 11462 Sonoma Sugarloaf Ridge State Park. Trail to Bald Mountain. Midway. 518 Comment
  CAS-BOT-BC404233  Urtica dioica subsp. holosericea Peter Rubtzoff 1958-8-17 3890 Sonoma Laguna de Santa Rosa northeast of Graton (near Guerneville Road) Comment
  CAS-BOT-BC404235  Urtica dioica subsp. holosericea Peter Rubtzoff 1960-9-17 4566 Sonoma Laguna de Santa Rosa area northeast of Graton (near Laguna Road) Comment
  CAS-BOT-BC404242  Urtica dioica subsp. holosericea Peter Rubtzoff 1954-7-27 1588 Sonoma Guerneville Marsh Comment
  SBBG50857  Vaccinium ovatum J. C. Lee 1966-4-27 41 Sonoma Hwy 116, 1 mi E of Guerneville 304 Comment
  CDA19730  Vaccinium ovatum H. R. Leach 1950-9-24 s.n. Sonoma Northern California; Russian River. 0 Comment
  UC912416  Vaccinium parvifolium Herbert L. Mason 1928-7-11 4892 Sonoma 2 miles north of Fort Ross Comment
  CAS-BOT-BC76167  Vancouveria planipetala Rimo Bacigalupi 1926-4-30 1376 Sonoma Cazadero. Comment
  UC1479609  Vancouveria planipetala Roy Y. Berg 1964-5-10 RYB 8096 Sonoma along Hwy 12 Russian River Valley 1 mi below sideroad to Occidental; Russian River Valley Comment
  UC558486  Veratrum fimbriatum Elizabeth E. Morse 1936-8-30 Sonoma Gualala River Comment
  JEPS58976  Verbascum virgatum Pat Watters and Walter Knight 1963-7-19 Sonoma Gravenstein Highway intersection with US 101 Freeway Cotati (Cotati) Comment
  RSA201200  Verbascum virgatum Walter Knight, Pat Watters 1963-7-19 s.n. Sonoma Gravenstein Highway inersection with US 101 Freeway, Cotati. Comment
  CAS-BOT-BC269309  Veronica Peter Rubtzoff 1971-5-8 6447 Sonoma Pitkin Marsh, near Forestville. Western border of the marsh near end of Templeman Road. Comment
  CAS-BOT-BC177116  Veronica americana Peter Rubtzoff 1955-7-9 1939 Sonoma Forestville Marsh. Comment
  CAS-BOT-BC182764  Veronica americana Peter Rubtzoff 1962-8-22 5049 Sonoma Bodega Bay Marsh. Comment
  UCD148401  Veronica americana Peter Rubtzoff 1958-6-1 3694 Sonoma Laguna de Santa Rosa, east of Cunningham (near Llano Road). Comment
  UCD124782  Veronica scutellata Mary M. Hektner 1974-7-17 147 Sonoma Between Sea Watch and Leeward Road, Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC267247  Viburnum ellipticum Greg de Nevers 1982-5-17 2012 Sonoma Pepperwood Ranch. Mark West Creek and Leslie Creek Comment
  RSA799986  Vicia Peter Rubtzoff 1974-5-25 7462 Sonoma Upper Green Valley Marsh. Comment
  UCSB31792  Vicia benghalensis Townsend, J. 1977-5-30 Sonoma West side Russian River about 1 mile south of Guerneville 335 Comment
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Jul 28 2008
  CHSC33020  Vicia sativa Jane A. Rogers 1979-4-14 5 Sonoma Ca. 50 yds e of end of Hart Lane, ca. 1/2 mi. n of intersection of Hwy. 12 and Duer Rd., ca. 1 mi. e of Sebastopol. 27 Comment
  JEPS73355  Vicia sativa Edward Lee with Joe Ewan and Annetta Carter 1934-4-30 758 Sonoma 1 mi w Two Rock Junction Comment
  RSA51333  Vicia sativa Peter H. Raven 1950-4-6 1585 Sonoma Cotati to Santa Rosa Comment
  UCSB22471  Vicia sativa subsp. sativa McCarthy, Sharon 1965-4-17 Sonoma in field West of 5th St. West opposite Betancourt St. intersection, Sonoma 10 Comment
  UC1761569  Viola douglasii Helen Von Grafen 1927-3-25 Sonoma Santa Rosa golf course Comment
  UC1761828  Viola douglasii Mary Focht 1932-3-11 Sonoma Santa Rosa Country Club golf links Comment
  RSA135422  Viola glabella Volney Rattan 1877-6-14 s.n. Sonoma Guerneville. Comment
  UC1761445  Viola lobata Milo S. Baker 1924-5-3 463 Sonoma Howell Mt., Pinecrest Comment
  UC1121589  Viola ocellata E. Armstrong 1934-4-15 1208 Sonoma 4 mi se of Occidental 152 Comment
  SEINET186436 Image available Viola ocellata M. S. Baker 9469 Sonoma South side of Meeker Grade ca 2 miles east of Occidental Comment
  UC1761452  Viola ocellata Milo S. Baker May 1899 992 Sonoma Stewarts Canyon Santa Cruz Mountains Comment
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Jun 8 2007
  UC1761634  Viola pedunculata Miss Bumbaugh 1898-3-15 Sonoma near Sebastopol Comment
  UC1742248  Viola rafinesquei Milo S. Baker Apr 1934 7705 Sonoma Brookside Garden Comment
  SEINET11996124  Viola sempervirens F. H. Utech 1988-1 88 -009 Sonoma 3 mi S of Ft. Ross Historic Site & junction with Ft. Ross Rd on CA 1 100 Comment
  CAS-BOT-BC135294  Viscum album D. Wiens; R. Scharpf 1973-6-17 4900 Sonoma Sebastopol, in and around the town Comment
  CDA2766  Viscum album G. D. Barbe 1968-1-1 859 Sonoma 7790 Atkinson Road, 1 block east of State Hwy 12, 1.5 miles north of Sebastopol. 0 Comment
  CDA2768  Viscum album subsp. album C. W. Nichols, W. O. McCartney 1966-1-17 Sonoma In back yard of property, 1220 Gravenstein Highway North at Hill Station Road, 1 mile north of Sebastopol. 0 Comment
  CAS-BOT-BC203135  Vitis californica C. B. Wolf; B. D. Stark 1933-9-27 5512 Sonoma 5.8 mi. N.W. of Kellogg on rd. to Geyserville 91 Comment
  POM127692  Vitis californica L. R. Abrams 1922-6-21 8099 Sonoma Healdsburg to Cloverdale. Comment
  SJSU7518  Vitis californica L. S. Rose 1968-6-25 68115 Sonoma Rincon Ridge NE of Santa Rosa 121 Comment
  CAS-BOT-BC199898  Vulpia bromoides A. A. Heller 1902-4-4 5221 Sonoma Hills near Santa Rosa Comment
  UC1024737  Vulpia bromoides Leo Whitney 3043 a Sonoma Molino Comment
  UCD93551  Vulpia bromoides P. B. Kennedy 1918-5-28 s.n. Sonoma 8 miles from Santa Rosa. Retrified Forest Road. Comment
  CAS-BOT-BC199915  Vulpia bromoides Peter Rubtzoff 1951-7-7 372 Sonoma Eastern branch of the Upper Marsh Comment
  HSC9911  Vulpia microstachys Leo Koch 1940-4-22 838 Sonoma At Geysers in Sulfur Creek Canyon. Comment