Search Results — 2000 specimen records retrieved (1285 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  POM180771  Abies grandis J. T. Howell 1930-7-27 5398 Sonoma Canyon 1 mile N of Fort Ross. Comment
  CHSC1074  Abronia maritima A. Small 1954-6-4 Sonoma Doran Park. Comment
  CAS-BOT-BC177006  Acacia Walter Knight; Irja Knight 1990-5-1 6591 Sonoma Calistoga Road at north summit between Gates and Porter Creek roads 243 Comment
  UCD160514  Acaena novae-zelandiae Daniel Potter; T. Harrington, M. Harrington, P. Lash, T. Potter. 2013-10-24 702 Sonoma Salt Point State Park, along Highway 1 at mile marker 43.66. 53 Comment
  UC1084436  Acer macrophyllum G. Thomas Robbins 1940-3-21 294 Sonoma along Chalk Hill road ca 5 mi e Windsor; e of Windsor 91 Comment
  CAS-BOT-BC332755  Acer macrophyllum Saichi Kawahara 1968-4-20 330 Sonoma King's mailbox, 3700 Trinity Road 304 Comment
  UCD117066  Acer macrophyllum C. Wistrom 1996-5-26 39 Sonoma Armstrong Redwoods State Park, Gureneville. 15 Comment
  UCSB50239  Achillea millefolium Gray, John 1976-5-1 Sonoma Bluff over Salmon Creek State Beach; T6N R11W 18 Comment
  CAS-BOT-BC30076  Achillea millefolium John Thomas Howell 1945-8-14 21396 Sonoma Perry Marsh Comment
  CAS-BOT-BC166797  Achyrachaena mollis Peter Rubtzoff 1974-5-18 7425 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  CAS-BOT-BC29165  Achyrachaena mollis F. Almeda; G. DeNevers 1981-4-28 4913 Sonoma Pepperwood Ranch, vicinity of Bechtel Cabin Comment
  RSA783728  Achyrachaena mollis Peter Rubtzoff 1963-6-18 5180 Sonoma Bennett Mountain Lake. Comment
  UCD151098  Acmispon James A. Neilson Jr. 1974-6-1 s.n. Sonoma Mayacmas Mountains, 1/4 mi. south of Geyser Rock area, east Sonoma County. (Elevation estimated by label maker using Google Earth.) 1027 Comment
  JEPS128383  Acmispon americanus var. americanus Roger Raiche 2000-7-24 141 .00 Sonoma The Cedars. Rick's Gate. Lower Russian River, Big Austin Creek watershed. Comment
  UCD161313  Acmispon brachycarpus James A Neilson Jr.; Teresa A. Sholars 1976-5-10 3714 Sonoma Mayacmas Mountains. Eight miles east of U.S. Highway 101, ca. 1/2 mile north of the Geysers Road; Aidlin-Gouvea Leasehold. (Elevation and exact location estimated by label maker.) Comment
  HSC101108  Acmispon grandiflorus var. grandiflorus Peter Warner 2011-6-16 214 Sonoma Jenner Headlands property, northeastern area, on ridge between Jenner Gulch and Kidd Creek watersheds, ~ 200 m fr. boundary with E&P Ranch 470 Comment
  UCD104496  Acmispon wrangelianus P. B. Kennedy 1915-6-1 s.n. Sonoma Del Mar. Comment
  CAS-BOT-BC29848  Adenocaulon bicolor Volney Rattan 1877-6-18 s.n. Sonoma Guerneville Comment
  CAS-BOT-BC29850  Adenocaulon bicolor Rimo Bacigalupi 1926-5-2 1398 Sonoma Cazadero Comment
  JEPS128354  Adiantum capillus-veneris Roger Raiche 2000-5-5 097 .00 Sonoma The Cedars. Venus' Seep in Spicebush Canyon. Lower Russian River, Big Austin Creek watershed. Comment
  JEPS82260  Adiantum capillus-veneris Roger Raiche 1983-6-25 30423 Sonoma ca 1 mi w Laton Mine (headwaters of Austin Creek, The Cedars) 365 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
  HSC34931  Adiantum jordanii Thomas W. Nelson, James Nelson 1975-3-25 1759 Sonoma Beside Hwy. 128, E of Geyserville at the Sonoma-Napa Co. line Comment
  CAS-BOT-BC9073  Aegilops triuncialis Thomas C. Fuller 1960-6-14 4483 Sonoma Roadside near Golf Course, Los Alamos Rd., ca. 6 mi. E/Santa Rosa Comment
  POM136963  Aesculus californica A. A. Heller 1902-6-4 8924 Sonoma Santa Rosa. Comment
  UCSC005106  Aesculus californica Lulu Waks 2006-10-15 16 Sonoma Bloomfield, Bloomfield Rd. to Sutton St. Private residence on Sutton St. Comment
  CAS-BOT-BC173633  Agoseris Peter Rubtzoff 1974-5-19 7449 Sonoma Todd Road, 1.4 mi. from Hwy. 116, and 0.6 miles from Llano Road. Comment
  UCD159446  Agoseris apargioides var. eastwoodiae D. S. Park; S. Nicole, M. Armijos, H. Sandhu 2010-8-3 203 Sonoma Bodega head. Sonoma coast state beach. Cliff overlooking sea. Abundant. 20 Comment
  CAS-BOT-BC15352  Agoseris grandiflora var. grandiflora Alice Eastwood 1921-5-8 10481 Sonoma Petaluma Comment
  CAS-BOT-BC13169  Agoseris hirsuta A. A. Heller 1902-6-2 5632 Sonoma Santa Rosa Comment
  CAS-BOT-BC422324  Agropyron Greg de Nevers 1989-4-1 9064 Sonoma Pepperwood Ranch Natural Preserve. Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 400 Comment
  CAS-BOT-BC166695  Agrostis Peter Rubtzoff 1974-5-25 7461 Sonoma Upper Green Valley Marsh Comment
  CAS-BOT-BC176402  Agrostis Peter Rubtzoff 1964-5-20 5308 Sonoma Brooks Gulch Marsh. Comment
  CAS-BOT-BC210011  Agrostis Peter Rubtzoff 1968-7-13 5918 Sonoma Upper Salmon Creek Marsh Comment
  CAS-BOT-BC210012  Agrostis Peter Rubtzoff 1970-9-3 6378 Sonoma Marsh off Hwy. 1, 0.7 mi. SE of Salmon Creek Crossing Comment
  RSA785905  Agrostis Peter Rubtzoff 1967-8-22 5855 Sonoma SE of Lower Salmon Creek Marsh Comment
  UCD166090  Agrostis Peter Rubtzoff 1971-6-29 6580 Sonoma Pitkin Marsh, near Forestville. Comment
  SEINET10915785  Agrostis P. Rubtzoff 1964-6-24 Rubtzoff 5368 Sonoma Lower Salmon Creek Marsh. Comment
  SEINET7297568 Image available Agrostis blasdalei Beecher Crampton 1957-1 4345 Sonoma Duncan's Point, Sonoma Coast State Park, 4.6 miles north of Salmon Creek Comment
  UCR119152  Agrostis californica Beecher Crampton 1957-7-11 4344 Sonoma Central Coast, 4.6 miles north of Salmon Creek, Sonoma Coast State Park, along State Highway 1, Duncan's Point. Sandy slopes above bluffs. 30 Comment
  UCD51881  Agrostis capillaris Milo S. Baker 1943-7-29 10502 Sonoma Brookside Garden, Kenwood. Comment
  SEINET249772  Agrostis clivicola Beecher Crampton 1957-7-11 4351 Sonoma 9 miles north of Salmon Creek, Sonoma Coast State Park, just south of Goat Rock, along pathway to Blind Beach. Comment
  CAS-BOT-BC361400  Agrostis elliottiana Greg de Nevers 1993-5-6 10437 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, in Devil's Kitchen east of 3865 Franz Valley Rd., at Weimar Flat 457 Comment
  CAS-BOT-BC126961  Agrostis exarata Peter Rubtzoff 1951-8-18 622 Sonoma Pitkin Marsh, near Forestville. Uppermost part of the western branch of the Upper Marsh. Comment
  CAS-BOT-BC126962  Agrostis exarata G. DeNevers 1981-6-20 1590 Sonoma Pepperwood Ranch. Confluence of Mark West Creek and Leslie Creek. Along Leslie Creek bed. Comment
  UCD148474  Agrostis exarata Peter Rubtzoff 1964-8-20 5461 Sonoma Americano Creek area, along Petaluma-Valley Ford road near Bloomfield. Comment
  UCD32829  Agrostis exarata Beecher Crampton 1964-8-18 7150 Sonoma N.E. Sonoma County, The Geysers, 12 miles (in direct line) east of Cloverdale, ca. 1/4 mile east of Geyser Resort area, Big Sulfer Creek. Comment
  UCD52506  Agrostis exarata Freed W. Hoffman 1941-5-27 2175 Sonoma Lone Mountain Farm, near Guernerville. Comment
  UCD52539  Agrostis exarata Beecher Crampton 1957-7-11 4298 Sonoma Along State Hwy. 1, 1.4 miles SW of Bodega Bay. Comment
  UCD53506  Agrostis exarata P. B. Kennedy 1916-7-17 s.n. Sonoma Del Mar. Comment
  UCD52239  Agrostis exarata var. pacifica Beecher Crampton 1955-7-15 2915 Sonoma 6 miles west of Forest Hill. Comment
  CAS-BOT-BC139555  Agrostis gigantea Peter Rubtzoff 1951-7-21 508 Sonoma Pitkin Marsh near Forestville. Between the Upper and the Lower Marshes. Comment
  SEINET6762812 Image available Agrostis gigantea A. A. Beetle 1941-1 2855 Sonoma 5 mi S of Steward [Stewarts] Point Comment
  UCD36694  Agrostis hallii Beecher Crampton 1955-6-17 2958 Sonoma Sonoma County, 6 miles west of Cazadero, on road to Fort Ross. Comment
  UCD52701  Agrostis hallii Beecher Crampton 1955-6-17 2958 Sonoma 6 miles west of Cazadero, road to Fort Ross. Comment
  UC1146631  Agrostis microphylla Freed W. Hoffman 1944-5-30 2013 Sonoma sand banks Russian River (Guernewood Park); North Coast Ranges, , Guernewood Park Comment
  SBBG26362  Agrostis microphylla B. Crampton 1966-5-10 Sonoma 5.5 mi N of Sonoma. St Hwy 12 Comment
  CAS-BOT-BC139121  Agrostis oregonensis Peter Rubtzoff 1951-6-16 254 Sonoma Pitkin Marsh, near Forestville. Uppermost part of the western branch of the Upper Marsh. Comment
  CAS-BOT-BC138914  Agrostis pallens Milo S. Baker 1947-5-30 11774 Sonoma 2 miles northeast of Occidental along Harrison Grade. Comment
  UCD53074  Agrostis pallens Beecher Crampton 1955-6-17 2976 Sonoma 2.4 miles south of Monte Rio. Comment
  UCD53178  Agrostis pallens P. B. Kennedy 1914-10-1 s.n. Sonoma Del Mar Ranch. Comment
  CAS-BOT-BC539342  Agrostis pallens Frederica Bowcutt 1994-6-12 1856 Sonoma Sugarloaf Ridge State Park, about 50 air mi N of San Francisco, 10 air mi E of Santa Rosa, 1.5 air mi N of Kenwood, and 18 air mi NW of Napa; Adobe Canyo N of Sonoma Creek, N of Adobe Canyon Rd, at Pony Gate trail jct 432 Comment
  UCD144566  Agrostis pallens Frederica Bowcutt 1994-6-12 1856 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air milse N of Kenwood, and 18 air miles NW of Napa. Adobe Canyon N of Sonoma Creek, N of Adobe Canyon Road, at Pony Gate trail juncture. 432 Comment
  UCD53197  Agrostis pallens R. Tofsrud 1951-6-1 s.n. Sonoma summit of Oakville to Kenwood road. Comment
  SEINET7594124 Image available Agrostis perennans A. A. Beetle 1941-1 2855 Sonoma 5 miles south of Steward Point 24 Comment
  CAS-BOT-BC138595  Agrostis stolonifera A. A. Beetle 1941-7-8 2855 Sonoma Sonoma county coast, 5 miles south of Stewart Point. Comment
  UCD53458  Agrostis stolonifera P. B. Kennedy 1917-8-27 s.n. Sonoma Del Mar. Comment
  RSA316038  Aira caryophyllea Patricia Wilder 1934-6-10 3634 Sonoma 1.0 mile N of Jenner on California state Hwy 1.North coast 23 Comment
  CAS-BOT-BC138217  Aira caryophyllea var. caryophyllea Alice Eastwood 1915-6-29 s.n. Sonoma Bodega Point. Comment
  RSA128795  Aira elegans P. H. Raven 1950-4-23 1913 Sonoma Open wet grassy meadows, Solve quisty. Comment
  UCD37149  Aira praecox Beecher Crampton 1957-7-11 4327 Sonoma Sonoma County, 0.9 mile north of Salmon Creek, Sonoma Coast State Park, along State Highway 1. Comment
  RSA800349  Alisma lanceolatum Peter Rubtzoff 1977-8-12 9114 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  CAS-BOT-BC445333  Alisma lanceolatum Peter Rubtzoff 1958-9-20 3993 Sonoma Laguna de Santa Rosa northeast of Graton (1/2 mi. north of Guerneville Rd.). Comment
  CAS-BOT-BC445336  Alisma lanceolatum Peter Rubtzoff 1954-7-4 1528 Sonoma Austin Creek Marsh. Comment
  CAS-BOT-BC445338  Alisma lanceolatum Peter Rubtzoff 1955-7-16 1959 Sonoma Bennett Mtn. Lake. Comment
  CAS-BOT-BC445339  Alisma lanceolatum Peter Rubtzoff 1954-8-12 1697 Sonoma Bennett Mtn. Lake. Comment
  CAS-BOT-BC445464  Alisma triviale Peter Rubtzoff 1961-7-22 4667 Sonoma Bennett Mtn. Lake. Comment
  CAS-BOT-BC445473  Alisma triviale Volney Rattan 1879-1-1 s.n. Sonoma Healdsburg Comment
  CAS-BOT-BC445478  Alisma triviale Walter Knight; Irja Knight 1965-9-12 1188 Sonoma Newanga Road, Santa Rosa. Comment
  JEPS128306  Allium amplectens Roger Raiche 2009-4-30 027 .09 Sonoma The Cedars. Lower Russian River, East Austin Creek watershed. Comment
  CDA31282  Allium dichlamydeum D. G. Kelch, Ed Biffin 2010-5-3 10 .197 Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  JEPS128211  Allium falcifolium Roger Raiche 2000-5-5 088 .00 Sonoma The Cedars. Gualala River, Wheatfield Fork watershed. Comment
  CDA39418  Allium unifolium T. C. Fuller 1967-5-19 15884 Sonoma South side of Petaluma - Valley Ford Hwy., 2 miles northwest of Two Rock. 0 Comment
  UCD141805  Allium unifolium T. C. Fuller 1967-5-19 15884 Sonoma between ditchbank and fence, south side of Petaluma Valley Ford Hwy, 2 miles NW of Two Rock. Comment
  CAS-BOT-BC371473  Allium vineale Greg de Nevers 1994-6-29 10527 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. On the road below Red Corral. 400 Comment
  UCD138618  Allium vineale G. D. Barbe 1974-4-29 1782 Sonoma 1 mile south of Washington School Road on Asti Road, Asti. Comment
  UCR244613  Alnus oregana Peter Rubtzoff 1966-11-9 5836 Sonoma Along Salmon Creek, near Freestone 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-BC169656  Alnus rhombifolia Peter Rubtzoff 1961-10-23 4781 Sonoma Laguna de Santa Rosa area NE of Graton Comment
  CAS-BOT-BC169658  Alnus rhombifolia Peter Rubtzoff 1957-8-18 3522 Sonoma Vacation Beach, near (1.5 mi below) Guerneville. Russian River bank Comment
  CAS-BOT-BC251211  Alnus rhombifolia Peter Rubtzoff 1960-9-14 4550 Sonoma Laguna de Santa Rosa area, east of Graton, between Occidental and Guerneville roads. Comment
  RSA800597  Alnus rhombifolia Peter Rubtzoff 1960-9-15 4549 Sonoma Laguna de Santa Rosa area, east of Graton, between Occidental and Guerneville roads. Comment
  CAS-BOT-BC169364  Alnus rubra Peter Rubtzoff 1959-9-12 4261 Sonoma Willows Creek Marsh, growing along Willow Creek Comment
  RSA800594  Alnus rubra Peter Rubtzoff 1969-7-21 6118 Sonoma Duncan Mills Marsh. Comment
  CAS-BOT-BC376271  Alopecurus pratensis Greg de Nevers 1996-4-18 10792 Sonoma Knights Valley, marsh at south end of valley at base of hills, on Bavarian Lion Ranch. Knight's Valley Marsh. Bavarian Lion Ranch, 450 ft. 91 Comment
  UCD55812  Alopecurus pratensis Mary M. Hektner 1975-4-30 191 Sonoma near State Highway 1, Sea Ranch, just below Sea Ranch Association Office parking lot, Unit 36 Owners' Map . Comment
  POM161247  Ambrosia chamissonis var. chamissonis Rimo Bacigalupi 1928-6-18 1899 Sonoma Beach at mouth of Salmon Creek, 2 miles N of Bodega Bay. Comment
  RSA90498  Amelanchier florida M. V. Ott 1934-3-31 82 Sonoma Larkspur Hill about 3 miles W of Bodega, near the coast. Comment
  CAS-BOT-BC154862  Ammannia Peter Rubtzoff 1970-8-18 6307 Sonoma 5 miles north of Sears Point. Comment
  CAS-BOT-BC154122  Ammannia coccinea Peter Rubtzoff 1958-9-27 4005 Sonoma Laguna de Santa Rosa, northwest of Graton (0.5 mi. N of Guerneville Road.) Comment
  UCR279886  Ammannia robusta Peter Rubtzoff 1972-8-26 6860 Sonoma North Coast Range, Laguna [Lake], Chileno Valley 69 Comment
  CAS-BOT-BC222285  Amsinckia Alice Eastwood; John Thomas Howell 1934-4-10 1299 Sonoma Cloverdale Grade Comment
  UC1073292  Amsinckia spectabilis George B. Rossbach 1955-3-19 454 Sonoma northern and highest hill on Bodega Head 76 Comment
  UC1303044  Amsinckia spectabilis Roxana S. Ferris 1932-5-27 8257 Sonoma Bodega Bay Comment
  HSC3552  Amsinckia vernicosa R. F. Good 1962-4-20 2 Sonoma 2 mi. W of Petaluma on D St., extension toward Pt. Reyes. Sonoma Mt. Coast Range. 46 Comment
  RSA0089704  Amsinckia vestita Amos Arthur Heller 1940-4-22 15547 Sonoma Anderson Valley. Comment
  UCD117445  Anagallis arvensis Mary M. Hektner; Cathy Hendel, Sue Dakuzaku 1974-6-19 32 Sonoma Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  RSA223349  Anagallis arvensis Peter Rubtzoff 1962-8-22 5040 Sonoma Bodega Bay Marsh. Comment
  SEINET11993493  Anagallis arvensis F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -172 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Road 485 Comment
  UCD56034  Andropogon glomeratus Freed W. Hoffman 1942-6-13 2046 Sonoma North Coast Ranges, around Hot Springs, the Geyers. Comment
  UCD56108  Andropogon virginicus Virginia Bufford 1936-8-19 415 Sonoma Vine Hill District, Pitkins Marsh. Comment
  UC1011020  Andropogon virginicus var. virginicus Virginia Bufford 1936-9-9 416 Sonoma Pitkin's Marsh; Pitkin's Marsh - Vine Hill District Comment
  UC1011023  Andropogon virginicus var. virginicus Virginia Bufford 1936-8-19 412 Sonoma Pitkin's Marsh; Pitkin's Marsh - Vine Hill District Comment
  UC558472  Andropogon virginicus var. virginicus J. Bufford 1936-9-8 Sonoma Pitkin Marsh; Pitkin Marsh, Vine Hill District Comment
  POM188472  Angelica californica Marcus E. Jones 1931-7-5 29050 Sonoma Cloverdale. Comment
  CAS-BOT-BC221431  Angelica hendersonii Walter Knight; Irja Knight 1963-8-13 166 Sonoma Horseshoe Cove Comment
  CAS-BOT-BC221432  Angelica hendersonii Alice Griffin 1925-7-1 s.n. Sonoma Stewarts Pt. Comment
  CDA37918  Angelica tomentosa D. G. Kelch 2011-9-17 11 .739 Sonoma 1.8 km S of Jenner. Goat Rock Rd. Comment
  UC479153  Angelica tomentosa Marcus E. Jones, A. M. 1931-7-5 29050 Sonoma w of Cloverdale Comment
  UCD128896  Anisocarpus madioides Gerry North 1993-3 6 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. Across Adobe Canyon Road deom Goodspeed Trailhead pullout. 228 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
  UC1084476  Anthemis cotula G. Thomas Robbins 1937-6-18 245 Sonoma Santa Rosa Santa Rosa Creek Comment
  CAS-BOT-BC173667  Anthemis cotula Peter Rubtzoff 1958-7-5 3735 Sonoma Atascadero Creek Marsh. Comment
  CAS-BOT-BC173818  Anthemis cotula Peter Rubtzoff 1959-6-13 4139 Sonoma Willow Creek Marsh. Comment
  UCD129047  Anthemis cotula Frederica Bowcutt 1994-6-24 1890 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. Vista Trail about 1/4 way from bald Mountain Trail to Headwaters Trail. 554 Comment
  UCD15834  Anthemis cotula K. Mawdsley 1998-6-30 44 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 Meadow Trail about 100 yds west of Education Center and gate. 350 Comment
  UCR118997  Anthoxanthum aristatum Beecher Crampton 1955-4-5 2412 Sonoma Santa Rosa Area, 3 miles northeast of Trenton, 3 miles southwest of Windsor, Starr Road, near Starr School, along Windsor Creek 91 Comment
  UCD37565  Anthoxanthum aristatum Beecher Crampton 1955-4-5 2412 Sonoma 3 miles northeast of Trenton, 3 miles southwest of Windsor, Starr Road, near Starr School, along Windsor Creek. Comment
  UCD85356  Anthoxanthum occidentale Robert F. Thorne 1965-4-19 34316 Sonoma Harrison Grade. 1/2 mile from Green Valley Road. 152 Comment
  HSC93590  Anthoxanthum occidentale G. Fred Hrusa, G. L. Stebbins 1994-3-28 11705 Sonoma 14 mi. W of Cazadero Comment
  CAS-BOT-BC137688  Anthoxanthum odoratum Peter Rubtzoff 1960-5-16 4348 Sonoma Duncans Mills Marsh. Borderland of the marsh. Comment
  CAS-BOT-BC137689  Anthoxanthum odoratum Peter Rubtzoff 1955-5-14 1849 Sonoma Duncans Mills Marsh. Around the eastern border of the Marsh. Comment
  CAS-BOT-BC137695  Anthoxanthum odoratum David L. Morgan 1961-4-15 s.n. Sonoma Russian River Highway 4 miles west of Monte Rio. Comment
  RSA129297  Anthoxanthum odoratum H. S. Yates 1937-6-6 6583 Sonoma 1 mile E. of Duncan Mills 91 Comment
  UC576279  Anthoxanthum odoratum H. S. Yates 1937-6-6 6583 Sonoma 1 mi e of Duncan Mills 91 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
  JEPS83373  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum David M. Thompson 1983-6-15 330 Sonoma 0.3 mi n Porter Creek Road on Tarwater Grade portion of Franz Vlly Rd (w of Calistoga (Napa County), w side of road); Mark West Springs Quad. (7.5', 1958) 198 Comment
  CAS-BOT-BC248905  Antirrhinum virga R. D. Stone; G. Clifton 1983-6-16 556 Sonoma At intersection of Burma (Kingcaid) Rd. and Big Sulphur Creek Rd., upper Big Sulphur Cr. drainage, ca. 3.0 mi. due S of summit Cobb Mt. 822 Comment
  UC874555  Apium graveolens Marcus E. Jones, A. M. 1882-7-17 3604 Sonoma Duncan Mills Comment
  CAS-BOT-BC394990  Aquilegia formosa Saichi Kawahara 1968-4-20 322 Sonoma Trinity Road, 1 mile northwest of Highway 12 152 Comment
  SD7778  Arbutus menziesii M. Bioletti 1892-1 Sonoma Comment
  CAS-BOT-BC56912  Arctostaphylos John Thomas Howell 1934-3-3 11748 Sonoma Between Fort Ross and Stewart's Point 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
  RSA629211  Arctostaphylos Jon E. Keeley 1993-9-11 24779 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA629221  Arctostaphylos Jon E. Keeley 1993-9-11 24786 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  CAS-BOT-BC24080  Arctostaphylos bakeri Catherine Best 1986-2-9 1161 Sonoma Stoetz Lane about 3 miles northeast of Occidental. 213 Comment
  CAS-BOT-BC25323  Arctostaphylos bakeri R. F. Hoover 1968-2-23 10893 Sonoma Graton-Occidental road. Comment
  CHSC39445  Arctostaphylos bakeri B. A. Stein 1981-3-7 447 Sonoma Harrison Grade Rd, east of Occidental. 243 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
  OBI14768  Arctostaphylos bakeri Robert F. Hoover 1968-2-23 10893 Sonoma Graton-Occidental rd Comment
  UC1220417  Arctostaphylos bakeri B. F. Smith 1962-8-3 28 Sonoma 3.5 mi nnw Occidental; Quad. 64B2 158 Comment
  UC1388373  Arctostaphylos bakeri Freed W. Hoffman 1947-3-11 823 Sonoma ne Camp Meeker; North Coast Ranges Comment
  RSA622701  Arctostaphylos bakeri subsp. bakeri Jon E. Keeley, Melanie Baer-Keeley 1993-9-10 24704 Sonoma Along Bohemian Highway, 3.3 km north of Camp Meeker, between Occidental and Monte Rio. 90 Comment
  RSA622718  Arctostaphylos canescens Jon E. Keeley 1993-9-11 24761 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  UCD160915  Arctostaphylos canescens James A. Neilson Jr. 1975-7-31 2951 Sonoma Mayacmas Mountains. One-quarter mile southwest of Little Geysers. (Exact location unknown. Coordinates and elevation estimated by label maker.) 731 Comment
  UCD50543  Arctostaphylos canescens Roman Gankin; W. R. Hildreth and Ken Milam 1965-4-16 517 Sonoma 0.2 mile on Rockridge Lane from Montecito Road, on Sones Property, Rincon Ridge, Santa Rosa. Comment
  RSA164627  Arctostaphylos canescens subsp. canescens P. C. Everett 1963-11-21 11807 Sonoma Rincon Ridge, now Robt. Sones' residence, ca. 3 mi. ne. of Sasnta Rosa. 145 Comment
  RSA44383  Arctostaphylos canescens subsp. canescens L. S. Rose 1949-3-27 49017 Sonoma 3 mi. east of Beltane. 457 Comment
  CAS-BOT-BC23888  Arctostaphylos canescens subsp. sonomensis John Thomas Howell 1933-4-2 10942 Sonoma Rincon Ridge near Santa Rosa Comment
  RSA177966  Arctostaphylos canescens subsp. sonomensis R. F. Thorne 1965-4-20 34387 Sonoma Robert Sone's place on Rock Ridge Lane- Montecito Ave. on Rincon Ridge, Santa Rosa. 106 Comment
Read comments
Aug 10 2011
  UC876539  Arctostaphylos canescens subsp. sonomensis John Thomas Howell 1937-4-11 12894 Sonoma ne Santa Rosa; Rincon Ridge Comment
  SEINET11984865  Arctostaphylos canescens var. sonomensis R. Gankin, Hildreth, W. R.; Milam, K. 1965-1 517 Sonoma 0.2 mi on Rockridge Lane on Montecito Rd, on Sones Property, Rincon Ridge, Santa Rosa Comment
  CAS-BOT-BC23644  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth; Milam 1965-4-13 497 Sonoma .1 mile north of Timber Cove, eat of State Highway 1. Comment
  CAS-BOT-BC24987  Arctostaphylos densiflora John Thomas Howell 1931-3-14 5769 Sonoma Vine Hill District, 10 mi. W of Santa Rosa. Comment
  CAS-BOT-BC25012  Arctostaphylos densiflora J. Sigg; Elizabeth McClintock; Walter Knight; Irja Knight 1981-3-11 4083 Sonoma Originally from Vine Hill area near Sebastopol. Comment
  UC1120150  Arctostaphylos densiflora C. M. Belshaw 1936-3-7 1568 Sonoma in depression just e Trenton-Forestville; Sebastopol Quadrangle Comment
  UC1120153  Arctostaphylos densiflora A. E. Wieslander 1938-10-29 831 Sonoma Vine Hill Sebastopol Quadrangle Comment
  UC549535  Arctostaphylos densiflora J. E. Adams 1934-3-28 721 Sonoma Vine Hill School Sta. Rosa Comment
  SEINET11991023  Arctostaphylos glandulosa f. cushingiana W. Knight, Knight, I. 1983-1 4700 Sonoma Trinity Grade 270 Comment
  CAS-BOT-BC23279  Arctostaphylos glandulosa subsp. cushingiana H. F. Copeland 1933-3-18 A 1 Sonoma Spring Mountain Road, about 8 miles east of Santa Rosa. Comment
  CAS-BOT-BC23283  Arctostaphylos glandulosa subsp. cushingiana Milo S. Baker 1928-1-1 2588 b Sonoma Hood Mt., above Brown's cabin Comment
  CAS-BOT-BC24678  Arctostaphylos glandulosa subsp. glandulosa Walter Knight; Irja Knight 1963-12-27 472 Sonoma Summit Pine Flat Road. Comment
  CAS-BOT-BC24721  Arctostaphylos glandulosa subsp. glandulosa Walter Knight; Irja Knight; Stephen W. Edwards 1985-1-27 5173 Sonoma 7.7 mi. from w. end of Sonoma Lake Bridge on Rockpile Road. Comment
  UC424816  Arctostaphylos glandulosa subsp. glandulosa unknown 1930-3-1 3881 Sonoma along hwy. region by Frei Bros. Ranch Vine Hill Comment
Read comments
Jun 14 2011
  UC549392  Arctostaphylos glandulosa subsp. glandulosa J. E. Adams 1934-3-28 726 Sonoma five mi n Cazadero Comment
  UCD50865  Arctostaphylos hispidula Roger Raiche 1984-11-10 RR 40541 Sonoma Rockpile Road, 7.8 miles north of its beginning at intersection of Skaggs Springs-Stewarts Point Rd. 548 Comment
  CAS-BOT-BC39108  Arctostaphylos hispidula Walter Knight; Irja Knight; Stephen W. Edwards 1985-1-27 5172 Sonoma South-facing slope of ridge barrens south of Mt. Tom. 5.1 miles west on Kelly Road from Rockpile Road junction. 609 Comment
  CAS-BOT-BC38992  Arctostaphylos manzanita Roger Raiche 1983-7-10 30491 A Sonoma Near intersection between East Austin Creek and Gray Creek 140 Comment
  CDA11186  Arctostaphylos manzanita G. F. Hrusa 1989-1-2 5803 Sonoma North Coast Biodiversity Arena; NW side of Mt. St. Helena near summit of Chalk Mtn. off Ida Clayton Rd. Comment
  HSC83403  Arctostaphylos manzanita D. L. Koutnik, Mary Barbercheck 1981-6-18 Sonoma Austin Creek State Recreation Area, ca. 4 mi. N of Guerneville 488 Comment
  UCD151132  Arctostaphylos manzanita James A. Neilson Jr. 1973-6-6 2950 Sonoma Mayacmas Mountains. The Geysers. Site III. [Location of Site III at The Geysers taken from Neilson 3115 which gave the Township/Range of the location. Elevation and coordinates estimated by label maker.] 731 Comment
  UCD166535  Arctostaphylos manzanita Dylan O. Burge 2016-1-31 2036 Sonoma Russian River Valley, just S of Hopland, roadside on U.S. Route 101. 170 Comment
  SEINET11990955  Arctostaphylos manzanita Unknown 1983-1 30572 Sonoma N slope Morrison Ridge, Austin Creek State Recreation Area, above Thompson Creek 274 Comment
  SEINET11990957  Arctostaphylos manzanita Unknown 1983-1 30585 B Sonoma Layton Mine, Austin Creek, The Cedars Comment
  SEINET11996224  Arctostaphylos manzanita J. T. Vale, Wagnon, K. 1989-1 s.n. Sonoma Cavedale Road 305 Comment
  SEINET11998357  Arctostaphylos manzanita W. Knight, Knight, I.; Edwards, S. 1987-1 6336 Sonoma Pepperwood, Devil's Kitchen area 229 Comment
  SEINET12524595 Image available Arctostaphylos manzanita L. S. Rose 1940-1 40004 Sonoma Rincon Ridge, 2 mi E of Santa Rosa 61 Comment
  UCD51921  Arctostaphylos manzanita John M. Tucker 1977-6-16 4393 Sonoma On Shurtleff Ranch off Chalk Hill Road to the east; ca. 4 miles (airline) northeast of East Windsor (or ca. 10 miles, airline, north-northwest of Santa Rosa). 121 Comment
  SEINET11991013  Arctostaphylos manzanita subsp. bakeri W. Knight, Knight, I.; Knight, T. 1983-1 4767 Sonoma intersection of Occidental Rd & Fascindini Lane near Occidental Comment
  SEINET11998364  Arctostaphylos manzanita subsp. bakeri W. Knight, Knight, I.; Wells, P. V. 1985-1 6379 Sonoma Vine Hill School Rd, on CNPS Preserve 91 Comment
  CAS-BOT-BC38904  Arctostaphylos manzanita subsp. elegans Alice Eastwood 1922-5-5 11301 Sonoma Mt. St. Helena Comment
  OBI70632  Arctostaphylos manzanita subsp. glaucescens Larry E. Brown 1997-8-12 20797 Sonoma E of hwy 101 off of village ofAsti S of Cloverdale Comment
  SEINET11994915  Arctostaphylos manzanita subsp. glaucescens W. Knight, Knight, I. 1987-1 6083 Sonoma Pepperwood Preserve, Garrison Canyon 122 Comment
  CAS-BOT-BC38718  Arctostaphylos manzanita subsp. manzanita John Thomas Howell 1931-3-14 5775 Sonoma Vine Hill district, 10 miles west of Santa Rosa Comment
  CAS-BOT-BC38744  Arctostaphylos manzanita subsp. manzanita Milo S. Baker 1930-4-1 5044 Sonoma Vine Hill Region Comment
  POM131951  Arctostaphylos manzanita subsp. manzanita A. A. Heller, H. E. Brown, A. H. Heller 1902-3-20 10640 Sonoma Near Windsor. Comment
  UC1388364  Arctostaphylos manzanita subsp. manzanita Freed W. Hoffman 1946-10-25 1240 Sonoma headwaters of creek near Healdsburg; Palmer Creek 304 Comment
  CAS-BOT-BC38689  Arctostaphylos manzanita subsp. manzanita John Thomas Howell 1931-6-15 6691 Sonoma Thicket, 1 mile N. of Sebastapool Comment
  CAS-BOT-BC38690  Arctostaphylos manzanita subsp. manzanita John Thomas Howell 1939-1-15 14596 Sonoma Booth place, Knight's Valley Comment
  RSA96696  Arctostaphylos manzanita subsp. manzanita P. C. Everett, E. K. Balls, George B. Everett 1954-10-20 20377 Sonoma 4 mi. s.w. of Lake-Sonoma Co. line, n.w. to w. slope Mt. St. Helena. 640 Comment
  UC1388367  Arctostaphylos manzanita subsp. manzanita Freed W. Hoffman 1947-4-7 1879 Sonoma between Healdsburg Calistoga; North Coast Ranges Comment
  SEINET3164340  Arctostaphylos sonomensis L. S. Rose 1940-2-12 40006 Sonoma Rincon Ridge, 2 mi. e. of Santa Rosa 61 Comment
  CAS-BOT-BC47346  Arctostaphylos stanfordiana Walter Knight; Irja Knight 1963-12-27 471 Sonoma Pine Flat Rd., Circle S Ranch. Comment
  JEPS98844  Arctostaphylos stanfordiana unknown 1967-3-19 Sonoma W of Healdsburg (on Dorman Canyon Rd); Dry Creek Watershed Comment
  SD143521  Arctostaphylos stanfordiana H. F. Copeland 1933-3-18 A 11 Sonoma Spring Mountain Road, about 8 mi. E of Santa Rosa Comment
  UC1043525  Arctostaphylos stanfordiana P. C. Everett and E. K. Balls 1954-10-20 20376 Sonoma 4 mi sw from Lake-Sonoma Co. line (nw to w slopes of Mt. St. Helena) 640 Comment
  UC549680  Arctostaphylos stanfordiana J. E. Adams 1935-3-1 1021 Sonoma e Sta. Rosa; Rincon Ridge Comment
  SEINET11987193  Arctostaphylos stanfordiana W. Knight, Knight, I. 1981-1 3919 Sonoma Tilden Botanic Garden, Berkeley, orig. from near Annapolis Comment
  SEINET11994912  Arctostaphylos stanfordiana W. Knight, Knight, I. 1987-1 6081 Sonoma Devil's Kitchen in vicinity of Pepperwood Preserve 244 Comment
  SEINET12524558 Image available Arctostaphylos stanfordiana L. S. Rose 1934-1 34032 Sonoma 2 mi E of Occidental. Comment
  SEINET7267257  Arctostaphylos stanfordiana L. Fallon 1939-1-6 s.n. Sonoma 1 mile north of Santa Rosa Comment
  UCD53860  Arctostaphylos stanfordiana R. E. Preston 1996-4-22 928 Sonoma 5.7 miles SE of Hopland; on north ridge of Salt Canyon. 609 Comment
  JEPS95229  Arctostaphylos stanfordiana subsp. decumbens Stephen W. Edwards 1990-12-10 Sonoma Rincon Ridge, summit Comment
  JEPS98847  Arctostaphylos stanfordiana subsp. decumbens unknown 1967-3-19 Sonoma W of Healdsburg (on Dorman Canyon Rd); Dry Creek Watershed Comment
  POM181015  Arctostaphylos stanfordiana subsp. stanfordiana J. T. Howell 1931-3-14 5771 Sonoma Vine Hill District Comment
  RSA517039  Arctostaphylos stanfordiana subsp. stanfordiana Jack Guggolz, Betty Guggolz 1986-3-3 851 Sonoma 1.2 miles from West Dry Creek Road on south side of Chamise Ridge Road across from spur road to the north. (west of Geyserville) Comment
  SEINET11990990  Arctostaphylos stanfordiana var. repens W. Knight, Knight, I. 1983-1 4726 Sonoma Tilden Botanic Garden, Berkeley, orig. from Rincon Ridge near Santa Rosa Comment
  SD88565  Arctostaphylos viscida Darley F. Howe 1972-2-20 4805 Sonoma Trinity Road, Mt. Hood Range. Comment
  SEINET11989191  Arctostaphylos viscida S. W. Edwards 1982-1 s.n. Sonoma The Cedars Ridge, N of Cazadero, NW of King Ridge Rd at source of Big Austin Creek Comment
  UCD52206  Arctostaphylos viscida Freed W. Hoffman 1947-2-28 762 Sonoma Near Guerneville, Sonoma County. Comment
  CAS-BOT-BC47468  Arctostaphylos viscida subsp. viscida Stephen W. Edwards 1982-5-30 s.n. Sonoma The Cedars Ridge, north of Cazadero, northwest of King Ridge Road at source of Big Austin Creek. 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-BC400481  Aristolochia californica Greg de Nevers 1980-3-19 552 Sonoma Pepperwood Ranch. Confluence of Leslie Creek with Mark West Creek 68 Comment
  CAS-BOT-BC400482  Aristolochia californica Alice D. Sargent 1922-4-18 s.n. Sonoma Russian River near Montesano. (Southwest of Guernewood Park, across the river from Vacation Beach, acc. to map.) [Locality info from collection label and annotation label combined.] Comment
  UCD19910  Armeria maritima subsp. californica C. H. Lamoureux; J. M. Tucker, J. McCaskill, and S. Armstrong 1957-4-7 1191 Sonoma Duncan Point, Sonoma Coast State Park. 15 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
  CDA5448  Arnica discoidea D. G. Kelch, A. G. Murdock, Ben Carter 2007-5-13 7 .281 Sonoma Cavedale Rd. Comment
  UC353792  Arnica discoidea Milo S. Baker 31676 b. Sonoma road to Youngman's, e side of Los Guilicos Valley Los Guilicos Valley Comment
  CAS-BOT-BC84959  Artemisia californica Alice Eastwood; John Thomas Howell 1937-5-31 4500 Sonoma 2 miles south of Fort Ross Comment
  CAS-BOT-BC172577  Artemisia douglasiana Peter Rubtzoff 1954-9-6 1743 Sonoma Guerneville Marsh. Comment
  UCR280131  Artemisia douglasiana Peter Rubtzoff 1970-9-3 6371 Sonoma Marsh off west side of Highway 1, 0.7 miles SE of Salmon Creek crossing 30 Comment
  CAS-BOT-BC175851  Artemisia douglasiana Peter Rubtzoff 1955-10-12 2164 Sonoma Duncans Mills Marsh. Comment
  CAS-BOT-BC90491  Artemisia douglasiana John Thomas Howell 1926-11-14 2253 Sonoma Two miles east of Santa Rosa Comment
  UCSB15414  Artemisia pycnocephala Breedlove, Dennis 1961-12-31 Sonoma At mouth of Russian River 3 Comment
  CAS-BOT-BC368057  Arum italicum Greg de Nevers 1998-5-20 11254 Sonoma Mark West Creek on Cresta Ranch Comment
  CAS-BOT-BC400604  Asarum caudatum Peter Rubtzoff 1951-6-17 284 Sonoma Pitkin Marsh, near Forestville. Northern half of Lower Marsh Comment
  UC6177  Asarum caudatum Dr. Lorini Jun 1896 Sonoma Mount St. Helena Comment
  UC449988  Asclepias fascicularis Harriet A. Walker 1908-6-7 1164 Sonoma Santa Rosa Comment
  UC1195651  Asclepias solanoana A. R. Kruckeberg 1949-6-4 1762 Sonoma ca 4 mi above Pine Flat (sw of Cobb Mtn.) Comment
  UCD168056  Asclepias solanoana James Neilson 1978-6-17 3967 Sonoma Mayacmas Mountains, near Shell Well Site E. (Exact location unknown. Coordinates estimated by label maker. Shell Well Site E was located at Shell U.S. Geothermal lease #1, which was subsequently leased to Northern California Power Agency, and is now known as NCPA Power Plant 1.) Comment
  RSA224317  Asparagus officinalis Peter Rubtzoff 1961-8-26 4726 Sonoma Vacation Beach, near Guerneville. Banks of Russian River. Comment
  CAS-BOT-BC65836  Aspidotis californica John Thomas Howell 1943-4-18 17923 Sonoma Hills east of Agua Caliente Comment
  UC42400  Aspidotis californica F. T. Bioletti 1892-5-15 Sonoma Hood's Peak Comment
  UCD67616  Aspidotis densa D. Sanchez-Mata; P. Rodriguez Rojo 1996-8-9 s.n. Sonoma Camp Meeker-Monte Rio. Dutch Bill Creek. Open cypress forests (Cupressus sargentii) in serpentine and andesitic rocks. 800 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-BC66009  Athyrium filix-femina Greg de Nevers 1996-9-1 10870 Sonoma Ida Clayton Road over Mt. St. Helena 914 Comment
  CAS-BOT-BC66146  Athyrium filix-femina var. cyclosorum Peter Rubtzoff 1957-6-28 3384 Sonoma Duncans Mills Marsh Comment
  CAS-BOT-BC66154  Athyrium filix-femina var. cyclosorum Peter Rubtzoff 1951-7-8 411 Sonoma Northern half of Lower Marsh Comment
  UC399376  Athyrium filix-femina var. cyclosorum Michener and Bioletti 1897-7-6 Sonoma Gualala Comment
  POM143742  Athysanus pusillus A. A. Heller, H. E. Brown 1902-3-24 s.n. Sonoma Hills East of Santa Rosa. Comment
  RSA0018578  Atriplex Peter Rubtzoff 1958-9-6 3974 Sonoma Laguna de Santa Rosa, north of Cunningham (near Todd Road). Comment
  SEINET11933972  Atriplex patula W. Knight, Knight, I. 1984-1 5419 Sonoma In flood plain along Petaluma River 3 Comment
  UCR248362  Atriplex prostrata Peter Rubtzoff 1956-9-15 2898 Sonoma Atascadero Creek Marsh Comment
  UCSC000219  Atriplex prostrata E. L. Greene 1888-9-1 s.n. Sonoma Petaluma Comment
  CAS-BOT-BC227671  Avena Peter Rubtzoff 1980-5-26 9450 Sonoma Forest Hills, 5.5 mi. east of Guerneville. Russian River. Comment
  CAS-BOT-BC146141  Avena barbata G. DeNevers 1981-5-9 1018 Sonoma Pepperwood Ranch. By the Red Corral at the McCann Homestead. Comment
  POM207090  Avena barbata A. A. Heller 1902-3-26 5157 Sonoma Santa Rosa creek, east of Santa Rosa Comment
  UCD56195  Avena barbata Eric S. Nagy 1990-5-18 9 Sonoma Bodega Bay. Bodega Head. Dune ridge W of harbor along road. W of marine lab dorms and E of lab. Comment
  SEINET11690141  Avena barbata J. T. Howell, Knight, W.; Knight, I. 1987-1 6231 Sonoma Todd Road Preserve 24 Comment
  JEPS128387  Avena fatua Roger Raiche 2000-4-23 046 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  JEPS81900  Baccharis glutinosa Roger Raiche 1982-8-22 20701 Sonoma canyon running through Vine Hill Vine Hill 213 Comment
Read comments
Oct 17 2013
  UCR279608  Baccharis glutinosa Peter Rubtzoff 1955-9-24 2148 Sonoma Duncan Mills Marsh, upper portion of marsh 9 Comment
  CAS-BOT-BC99596  Baccharis pilularis F. G. Krauss 1894-10-14 s.n. Sonoma County Road, Sonoma Valley Comment
  CAS-BOT-BC99782  Baccharis salicifolia Alice Eastwood 1921-5-8 10464 Sonoma Petaluma Comment
  UCD163789  Barbarea Peter Rubtzoff 1989-3-13 9981 Sonoma Near Russian River, ca. 6 miles east of Guerneville, at 9850 River Road. Comment
  UCD163790  Barbarea Peter Rubtzoff 1989-3-13 9982 Sonoma Near Russian River, ca. 6 miles east of Guerneville, at 9850 River Road. Comment
  CDA18777  Barbarea orthoceras Boris Korotyaev 2000-3-26 s.n. Sonoma Northern California; Coleman Valley Rd. 4 km. W of Occidental. 0 Comment
  UCR254839  Barbarea orthoceras Greg de Nevers 1993-4-6 10356 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Franz Valley Creek, along Franz Valley Road by Franz Valley School Road 168 Comment
  CAS-BOT-BC145830  Beckmannia syzigachne Hy Edwards 1877-1-1 s.n. Sonoma Knight's Valley. Comment
  CAS-BOT-BC290551  Bidens frondosa Peter Rubtzoff 1958-9-27 4012 Sonoma Laguna de Santa Rosa, northeast of Graton (0.5 mi. north of Guerneville Road). Comment
  RSA0020331  Bidens frondosa Peter Rubtzoff 1973-9-4 7297 Sonoma Russian River at Forest Hills, 5.5 mi east of Guerneville. Comment
  RSA44227  Blennosperma bakeri J. T. Howell 1949-4-6 25303 Sonoma North Coast Range southwest of Sonoma. Comment
  RSA786928  Blennosperma bakeri Carrie A. Herd 1982-3-16 27 Sonoma Santa Rosa, Todd Road Preserve Comment
  SEINET3074489  Blennosperma bakeri M. S. Baker 1946-1 Sonoma Comment
  UC1428029  Blennosperma bakeri Charles F. Quibell with James R. Estes 1974-4-3 1159 Sonoma sw of, near intersection of Llano and Todd Roads Santa Rosa Comment
  UC353927  Blennosperma nanum var. nanum Milo S. Baker 1928-3-24 2617 b Sonoma near, along Pacific Hiway Windsor Comment
  SEINET10768038  Boechera breweri subsp. breweri Donald Loarie 2014-4-20 Loarie s.n. Sonoma S-facing rock wall on a tributary just upstream of the confluence with Sausal Creek, but before reaching the Pine Flat road culvert and the nearby pumping station. Comment
  CAS-BOT-BC154875  Boisduvalia densiflora Peter Rubtzoff 1969-7-25 6121 Sonoma 6.5 miles NE of Penngrove on Lichan Road 426 Comment
  CAS-BOT-BC154951  Boisduvalia densiflora Peter Rubtzoff 1969-8-26 6154 Sonoma On River Road, ca. 3 mi. W of Fulton Comment
  CAS-BOT-BC154952  Boisduvalia densiflora Peter Rubtzoff 1954-8-3 1638 Sonoma Lower Salmon Creek Marsh Comment
  POM32027  Boisduvalia densiflora var. densiflora A. A. Heller 1902-7-8 5820 Sonoma Between Healdsburg and Geyserville Comment
  CAS-BOT-BC28177  Bolboschoenus fluviatilis Peter Rubtzoff 1961-9-20 4758 Sonoma Laguna de Santa Rosa NE of Graton, nr. Guerneville Road crossing. Comment
  CAS-BOT-BC322143  Bolboschoenus maritimus Peter Rubtzoff 1972-8-26 6859 Sonoma Laguna, Chileno Valley. Comment
  RSA0034188  Bolboschoenus maritimus Peter Rubtzoff 1972-8-26 6859 Sonoma Laguna, Chileno Valley. Comment
  CAS-BOT-BC75494  Bolboschoenus maritimus subsp. paludosus Walter Knight; Irja Knight 1984-8-26 5426 Sonoma Willow Creek Road. 60 Comment
  UC903746  Bolboschoenus robustus Milo S. Baker 1946-7-28 11541 Sonoma On Sear's Point Highway. Comment
  POM142185  Boykinia occidentalis Michener, Bioletti 1893-06 13 Sonoma Adobe Canyon Comment
  RSA93383  Brachypodium distachyon J. T. Howell 1948-4-18 24214 Sonoma Hills east of Agua Caliente. Comment
  JEPS87102  Brachypodium pinnatum Peter G. Connors 1991-6-5 127 Sonoma just n of town of Bodega Bay (Salmon Creek Dunes, in State Park); Salmon Creek Dunes, State Park Comment
  UC1130927  Brachypodium pinnatum R. C. Morehouse 1937-8-23 Sonoma 1 mi w of Bloomfield (George Jones Property) 30 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
  CHSC91447  Brassica rapa Richard R. Halse 1987-2-22 3374 Sonoma Along State Hwy. 121, .4 miles E of its junction with State Hwy. 116 at Big Bend in the Sonoma Valley. 6 Comment
  HSC6588  Brassica rapa F. Demostene 1966-4-1 9 Sonoma 2 mi. E of Healdsburg Comment
  CAS-BOT-BC182745  Brassicaceae Peter Rubtzoff 1969-6-15 6097 Sonoma Laguna de Santa Rosa ca. 1 mile east-southeast of Sebastopol Comment
  CAS-BOT-BC145294  Briza minor G. DeNevers 1981-5-30 1379 Sonoma Pepperwood Ranch. On the shore of the Pippindale Pond, above the high water mark. Comment
  RSA52654  Briza minor I. L. Wiggins 1949-4-30 12070 Sonoma Four miles west of Calistoga, just west of country line. Comment
  UC76949  Briza minor Michener and Bioletti June, 1893 Sonoma Kenwood Comment
  SEINET10514426  Briza minor A. Arthur Heller 1902-6-7 Heller 5649 Sonoma Bennett Valley, southeast of Santa Rosa. Comment
  UCD57382  Briza minor Frank H. Takatori 1952-5-11 s.n. Sonoma 1 mile north of Petaluma. Comment
  CAS-BOT-BC376235  Brodiaea californica subsp. leptandra Greg de Nevers 1992-6-26 10180 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Along Franz Creek 91 Comment
  UC768624  Brodiaea elegans subsp. elegans R. F. Hoover 1938-6-14 3606 Sonoma 2 mi se Healdsburg Comment
  UC843568  Brodiaea elegans subsp. elegans Lewis S. Rose 1940-5-22 40363 Sonoma Sonoma 30 Comment
  UC72287  Brodiaea elegans subsp. elegans Milo S. Baker 1904-6-19 Sonoma above Maple Glen; Sonoma Creek Canyon Comment
  PASA507  Brodiaea laxa Frank W. Peirson 1926-4-1 Sonoma 6 miles south of Cloverdale Comment
  JEPS74720  Brodiaea leptandra W. L. Jepson 1923-6-28 10006 Sonoma Kenwood Sonoma Canyon 243 Comment
  CAS-BOT-BC486501  Brodiaea stellaris Milo S. Baker 1926-4-1 2086 Sonoma Graton-Occidental Road Comment
  CAS-BOT-BC486502  Brodiaea stellaris Milo S. Baker 1923-7-26 1278 Sonoma Lamb Ranch near head of South Fork of Yager Comment
  CAS-BOT-BC486523  Brodiaea stellaris Catherine Best 1979-5-11 s.n. Sonoma Near Occidental in the east side of Stoetz Road about 100 yeards north of the county dump Comment
  CAS-BOT-BC486526  Brodiaea stellaris Roxana S. Ferris; Laura Lorraine 1961-6-15 13574 Sonoma Junction of Occidental Road with Facendini Lane Comment
  CAS-BOT-BC486528  Brodiaea stellaris Peter Rubtzoff 1969-5-11 6046 Sonoma Laguna de Santa Rosa northeast of Graton, at end of Piner Road. Comment
  CAS-BOT-BC486457  Brodiaea terrestris subsp. terrestris Peter Rubtzoff 1971-6-5 6507 Sonoma Vernal pool 4.25 mi. west of Glen Ellen on Bennett Valley Road. Comment
  CAS-BOT-BC487727  Brodiaea terrestris subsp. terrestris Peter Rubtzoff 1962-6-13 4907 Sonoma Freestone Marsh Comment
  CAS-BOT-BC328121  Bromus Peter Rubtzoff 1964-5-31 5331 Sonoma Fitch Mountain Grove, 2 miles east of Healdsburg, along Russian River. Comment
  RSA127010  Bromus carinatus H. S. Yates 1937-5-30 6556 Sonoma 2 miles N.W. of Freestone Comment
  UCD55138  Bromus carinatus Ellen Dean; Tammie Beyerl 2006-4-28 3020 Sonoma Town of Kenwood. East of Hwy. 12. Kunde Vineyards. Vicinity of Pepperwood Lake Reservoir. 179 Comment
  UCD36637  Bromus carinatus Beecher Crampton 1955-6-8 2831 Sonoma Sonoma County, at Napa County border, 5 miles northwest of Calistoga, along State Highway 128. Comment
  CAS-BOT-BC149090  Bromus carinatus var. carinatus Peter Rubtzoff 1953-5-18 1401 Sonoma South of Guernevile (Neeley Hill area). Comment
  UC1024772  Bromus carinatus var. carinatus Leo Whitney 1935-4-13 2256 b Sonoma Santa Rosa Comment
  UC1131000  Bromus carinatus var. carinatus H. S. Yates 1934-6-21 3868 Sonoma near Bodgea 60 Comment
  CAS-BOT-BC149082  Bromus carinatus var. carinatus David L. Morgan 1961-4-11 s.n. Sonoma Highway 101, 3 miles south of Petaluma. Comment
  CAS-BOT-BC155957  Bromus commutatus Peter Rubtzoff 1959-5-30 4071 Sonoma Freestone Marsh. Comment
  CAS-BOT-BC155958  Bromus commutatus Peter Rubtzoff 1962-5-25 4844 Sonoma Atascadero Creek Marsh. Comment
  RSA127002  Bromus commutatus H. S. Yates 1937-6-6 6581 Sonoma 8 miles S. W. of Healdsburg 152 Comment
  UC574004  Bromus commutatus H. S. Yates 1937-6-6 6581 Sonoma 8 mi sw of Healdsburg 152 Comment
  UCD58485  Bromus commutatus Freed W. Hoffman 1942-6-20 2135 Sonoma North Coast Ranges. Near Guerneville. Comment
  RSA128739  Bromus diandrus P. H. Raven 1950-4-6 1595 Sonoma Santa Rosa to Rincon Ridge Comment
  UC903718  Bromus diandrus Milo S. Baker 1947-5-5 11730 Sonoma Hood Mountain, near nw corner of M.S. Baker property, (East Grant line) Hood Mountain Comment
  UCD58521  Bromus diandrus Gerry North 1993-4 1 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
  UCD58617  Bromus hordeaceus Beecher Crampton 1959-6-16 5370 Sonoma 0.2 miles E of Occidental. Comment
  CAS-BOT-BC155215  Bromus hordeaceus Walter Knight; Irja Knight; J. T. Howell 1987-5-27 6275 Sonoma Dodd Road Preserve. 24 Comment
  SEINET10901199  Bromus hordeaceus A. Arthur Heller 1902-4-17 Heller 5325 Sonoma Santa Rosa. Comment
  CAS-BOT-BC162389  Bromus laevipes G. DeNevers 1981-5-23 1291 Sonoma Pepperwood Ranch. Lower Pepperwood entrance. Comment
  CAS-BOT-BC162395  Bromus laevipes G. DeNevers 1981-5-15 1183 Sonoma Pepperwood Ranch. In first big left hand Canyon off north arm of Garrison Canyon. Comment
  JEPS128348  Bromus madritensis subsp. rubens Roger Raiche 2000-4-8 029 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  RSA176936  Bromus maritimus P. H. Raven 1963-4-28 18249 Sonoma between town of Bodega 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
  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
  CAS-BOT-BC233703  Buddleja davidii Catherine Best 1984-8-18 1042 Sonoma Russian River Highway about .5 miles east of Monte Rio Comment
  CHSC63902  Cakile maritima John Hale 1990-4-12 21 Sonoma Ca. 30 m. S. of Stockhoff Creek and 22 m. W. of Hiway 1, ca. 5 km NW of Fort Ross. 12 Comment
  UCD114957  Cakile maritima Walter Russell 1947-3-5 4 Sonoma Bodega Bay. Comment
  CAS-BOT-BC36913  Cakile maritima var. maritima Walter Knight; Irja Knight 1963-8-13 138 Sonoma Horseshoe Cove. Comment
  CAS-BOT-BC36951  Cakile maritima var. maritima John H. Thomas 1976-6-17 18352 Sonoma Near northern end of Sea Ranch, northwestern part of county, about 4 miles south of Gualala. Comment
  RSA0064342  Calamagrostis Peter Rubtzoff 1967-8-22 5856 Sonoma Hillside depression southeast of lower Salmon Creek Marsh. Comment
  CAS-BOT-BC185403  Calamagrostis bolanderi Mary P. Wells 1981-8-2 s.n. Sonoma Hedgegate Road, The Sea Ranch. Comment
  CAS-BOT-BC185406  Calamagrostis bolanderi John Thomas Howell 1946-8-17 22877 Sonoma Cunningham Marsh. Comment
  CAS-BOT-BC185408  Calamagrostis bolanderi Greg de Nevers 1996-6-17 10831 Sonoma CYO camp south of Occidental on Bohemian Highway. 121 Comment
  CAS-BOT-BC185409  Calamagrostis bolanderi Mary P. Wells 1983-8-3 155 Sonoma Timber Preserve of Oceanic of California, Inc., The Sea Ranch. Comment
  UCD57037  Calamagrostis bolanderi P. B. Kennedy 1915-7-1 s.n. Sonoma Del Mar. Comment
  UCD57042  Calamagrostis bolanderi Beecher Crampton 1957-7-22 4379 Sonoma State Hwy. 1, 8.7 miles south of Stewart's Point. Comment
  RSA144400  Calamagrostis koelerioides Roxana S. Ferris, Laura Lorraine 1961-6-15 13563 Sonoma On Harrison Grade Road, 0.3 mi from Junction with Green Valley Road. Comment
  CAS-BOT-BC185133  Calamagrostis nutkaensis Peter Rubtzoff 1952-5-21 1058 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh. Comment
  UCD57512  Calamagrostis nutkaensis Beecher Crampton 1957-7-11 4349 Sonoma ca. 9 miles north of Salmon Creek, just south of Goat Rock, Sonoma Coast State Park, above Blind Beach. Comment
  SD56676  Calamagrostis nutkaensis D. F. Howe 1953-7-3 3582 Sonoma 19 miles north of junction with #12 on #1 Comment
  SEINET10521062  Calamagrostis nutkaensis Alan A. Beetle 1945-8-4 Beetle 4012 Sonoma 10 miles north of Fort Ross, open coastal hills, grazed. Comment
  CAS-BOT-BC438610  Calandrinia ciliata John H. Thomas 1976-6-15 18281 Sonoma Southern end of the Sea Ranch, northwestern part of county, about 7 miles south of Gualala. 30 Comment
  CDA6850  Calendula arvensis J. T. Howell 1946-3-31 21591 Sonoma Just east of Sonoma. 0 Comment
  SEINET9288286  Calendula arvensis Unknown 2000-3-6 20969 Sonoma Sonoma Comment
  CAS-BOT-BC273237  Calendula arvensis Peter H. Raven 1963-4-28 18257 Sonoma Just west of El Verano Comment
  RSA99617  Calendula arvensis J. T. Howell 1954-4-1 29138 Sonoma Just east of Shellville. Comment
  UCD33564  Calendula arvensis Beecher Crampton 1970-3-12 8545 Sonoma Sonoma, 1st. Street West, just south of r.r. depot. Comment
  CAS-BOT-BC293674  Callitriche heterophylla Peter Rubtzoff 1974-4-6 7355 Sonoma Along Lawndale Road, 0.75 miles south of Highway 12. Comment
  UCD150858  Callitriche heterophylla var. bolanderi 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
  NY370182  Callitriche heterophylla var. bolanderi F. T. Bioletti 05 1893 s.n. Sonoma Comment
  JEPS128188  Calochortus amabilis Roger Raiche 2000-5-5 091 .00 Sonoma The Cedars. Gualala River, Wheatfield Fork watershed. Comment
  JEPS61628  Calochortus amabilis Eleanor Armstrong 1932-5-25 513 Sonoma near Mark West Springs (near Calistoga Grade) 152 Comment
  UC72483  Calochortus amabilis Milo S. Baker 1898-4-23 29 Sonoma Santa Rosa Creek Canyon Comment
  UCD139486  Calochortus amabilis C. Wistrom 1996-5-26 23 Sonoma Healdsburg, 1601 Dry Creek Road. 48 Comment
  UCR90866  Calochortus amabilis 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-BC483281  Calochortus amabilis H. E. Parks; S. T. Parks 1930-5-9 0605 Sonoma Alexander Valley Comment
  CAS-BOT-BC483282  Calochortus amabilis Roxana S. Ferris; Laura Lorraine 1961-6-15 13551 Sonoma Harrison Grade Road, 0.3 mile from junction with Green Valley Road Comment
  CAS-BOT-BC483290  Calochortus amabilis W. W. Carruth 1901-6-1 s.n. Sonoma Near Seaview Comment
  CAS-BOT-BC492635  Calochortus luteus A. Day 1982-6-1 82 -63 Sonoma Pepperwood Ranch Comment
  JEPS55606  Calochortus luteus D. M. Hutt 1965-6-17 Sonoma raised at U.C. Botanical Garden Comment
  UC1973318  Calochortus luteus Roger Raiche 1997-9-1 058 .97 Sonoma W of Occidental, Fitzpatrick Lane, ca. 1.8 mi W of its origin at Jy Ridge Road. Comment
  UC1299343  Calochortus raichei Freed W. Hoffman 1947-5-30 519 Sonoma Layton Mine North Coast Ranges, Austin Creek Comment
  CAS-BOT-BC132635  Calochortus uniflorus Alice Eastwood 1921-4-24 10336 Sonoma Santa Rosa Comment
  RSA369107  Calochortus vestae Christopher Davidson 1977-6-20 6005 Sonoma Dry Cr. Rd. 8.6 mi. W of Geyserville. 91 Comment
  UC1876265  Calycadenia fremontii Gerald D. Carr 1972-9-11 731 Sonoma 1.0 mi W of Westside Rd. on Mill Creek Rd., 2.5 mi SW of Healdsburg. 106 Comment
  RSA255487  Calycadenia multiglandulosa subsp. cephalotes Gerald D. Carr 1971-7-6 577 Sonoma Jct. of Facienda Lane and Occidental Road. Comment
  UCD129583  Calycadenia truncata Frederica Bowcutt 1997-7-19 2190 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NNE of Kenwood. 0.5 air mile SSE of Red Mountain. Mid-slope on S facing side of Adobe Canyon along Vista Trail just E. of Vista Rock (prominent metamorphic rock out crop). 579 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-BC90989  Calycanthus occidentalis Peter Rubtzoff 1959-6-7 4110 Sonoma Bank of Russian River between East Guernewood and Vacation Beach, near Guerneville. Comment
  CAS-BOT-BC90990  Calycanthus occidentalis Peter Rubtzoff 1960-6-10 4492 Sonoma Fife Creek Marsh. Comment
  CAS-BOT-BC90997  Calycanthus occidentalis A. A. Heller 1902-6-11 5689 Sonoma Santa Rosa Creek, east of Santa Rosa. Comment
  CAS-BOT-BC91001  Calycanthus occidentalis H. E. McMinn 1922-6-7 s.n. Sonoma Along roadside over mountain to Guerneville from Monte Rio. Streams leading into Russian River. Comment
  SD134014  Calycanthus occidentalis Peter Rubtzoff 1971-9-3 6698 Sonoma Springy area along southeastern border of Spring Creek Reservoir area. Comment
  UC1536225  Calycanthus occidentalis William Stone 1987-5-25 Sonoma 3 mi e Guerneville (Russian River, Odd Fellows Recreation Club Park) Comment
  UCD166583  Calycanthus occidentalis Dylan O. Burge 2016-8-20 2123 Sonoma Hooker Creek. 415 Comment
  UCSB23042  Calycanthus occidentalis McMinn, Howard 1922-6-7 Sonoma Near Monte Rio, by stream Comment
  JEPS64304  Calypso bulbosa Herman and King 1919-4-15 Sonoma Camp Meeker Comment
  UC1140871  Calypso bulbosa R. M. and A. Tryon 1958-3-9 Sonoma 1 mi w of Cazadero (on road to Fort Ross) Comment
  UC4384  Calypso bulbosa Miss Atterbury 1895-3-20 Sonoma Cazadero Comment
  RSA0059767  Calystegia D. F. Howe 1969-5-28 s.n. Sonoma 13.5 miles north of Jenner on Highway 1. Comment
  UCD126065  Calystegia collina Jennifer Bury; Peggy Herzog 1993-5-8 275 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. 396 Comment
  RSA0059883  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
  UCD125693  Calystegia purpurata subsp. purpurata Frederica Bowcutt 1994-5-1 1749 Sonoma Sugarloaf Ridge State Park. About 40 air miles north of San Francisco; about 11 air miles E of Santa Rosa; about 2.5 air miles N of Kenwood. Adobe Canyon along Goodspeed Trail about 1/8 mile from trail head on Adobe Canyon Road. 213 Comment
  CAS-BOT-BC224741  Calystegia purpurata subsp. saxicola John Thomas Howell 1930-6-8 5290 Sonoma 8.5 miles n. of Bodega Bay Comment
  CAS-BOT-BC224742  Calystegia purpurata subsp. saxicola John Thomas Howell 1930-6-8 5290 Sonoma 8.5 miles n. of Bodega Bay Comment
  JEPS128288  Calystegia subacaulis Roger Raiche 2008-5-18 004 .08 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UC1299584  Calystegia subacaulis Freed W. Hoffman 1947-4-13 777 Sonoma North Coast Ranges. Near Guerneville, Gilliam Creek. Comment
  CAS-BOT-BC376398  Camassia quamash subsp. linearis Greg de Nevers 1996-4-18 10790 Sonoma Knight's Valley Marsh, on Bavarian Lion Ranch. 137 Comment
  JEPS81961  Campanula angustiflora Rimo Bacigalupi, and L. R. Heckard, J. R. Sweeney 1965-5-16 9112 Sonoma along road to Franz Valley School road (between 1 and 1.25 mi due w of Sonoma-Napa counties line) 219 Comment
  CAS-BOT-BC266421  Campanula californica Peter Rubtzoff 1951-6-30 299 Sonoma The Pitkin Marsh near Forestville. W branch of the Upper 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
  SEINET10463913  Campanula californica Baker 1928-6-28 Baker 30466 Sonoma Pitkin Marsh. Comment
  UCR23658  Campanula prenanthoides John C. Roos 1957-7-2 s.n. Sonoma Miller Ridge Comment
  SEINET10463208  Campanula prenanthoides Rowntree 1931-7-15 ROWNTREE s.n. Sonoma STEWART PT. SKAGGS SPRINGS ROAD SHADY BANK Comment
  SEINET10905928  Campanula prenanthoides Rattan 1877-6-25 RATTAN s.n. Sonoma CLOVERDALE Comment
  CAS-BOT-BC37197  Capsella bursa-pastoris G. DeNevers 1981-4-23 797 Sonoma Pepperwood Ranch. In Pippindale Garden. Comment
  CAS-BOT-BC37759  Cardamine californica A. A. Heller; H. E. Brown 1902-3-20 5104 Sonoma Near Windsor. Comment
  CAS-BOT-BC37768  Cardamine californica J. Clausen 1933-3-25 728 Sonoma About 4 miles east of Warfields on road to Oakville. 213 Comment
  UC1084357  Cardamine californica var. integrifolia G. Thomas Robbins 1937-3-26 16 Sonoma along highway to Sebastopol just w Wright School; w of Wright School Comment
  CAS-BOT-BC38035  Cardamine oligosperma A. A. Heller; H. E. Brown 1902-3-14 5053 Sonoma Near Santa Rosa. Comment
  UC727778  Cardamine oligosperma Milo S. Baker Apr. 1946 11309 Sonoma Brookside Garden near Kenwood; Brookside Garden near Kenwood Comment
  UCD164684  Carduus Peter Rubtzoff 1976-5-30 8569 Sonoma Kenwood Marsh. Comment
  CDA37138  Carduus tenuiflorus Chris Heintzelman 2012-4-13 PDR# 1596520 Sonoma East side of Sunset Rock in Goat Rock State Park, 2 miles south of Jenner. 0 Comment
  UCD164192  Carex Peter Rubtzoff; Nancy Harrison 1978-6-11 9206 Sonoma Cunningham Marsh area, North side of Blucher Creek Valley. Comment
  UCR254740  Carex abrupta Peter Rubtzoff 1954-6-7 1482 Sonoma Guerneville Marsh Comment
  SEINET7546986  Carex albida J. T. Howell, J. W. Stacey 1937-1 Sonoma Comment
  CAS-BOT-BC18135  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
  CAS-BOT-BC19369  Carex barbarae H. D. Ripley; R. C. Barneby 1945-6-21 6938 Sonoma East of Petrified Forest. 304 Comment
  CAS-BOT-BC19371  Carex barbarae G. DeNevers 1981-3-14 528 A Sonoma Pepperwood Ranch. Pippindale farm, 7 miles NE of Santa Rosa, near Mark West lodge. In Leslie Creek. In Mark West Creek. Comment
  CAS-BOT-BC310297  Carex barbarae Peter Rubtzoff 1970-6-14 s.n. Sonoma 3 miles west of Fulton on north side of River Road. Comment
  CAS-BOT-BC310301  Carex barbarae Peter Rubtzoff 1969-8-24 s.n. Sonoma 3 miles west of Fulton on north side of River Road. Comment
  CAS-BOT-BC310302  Carex barbarae Peter Rubtzoff 1971-8-9 s.n. Sonoma Laguna Lake area, Cileno Valley. Comment
  CAS-BOT-BC19569  Carex bolanderi Roxana S. Ferris; Laura Lorraine 1961-6-14 13539 Sonoma Joy Road grade, 1.8 mile from junction with Bodgea Highway. Comment
  RSA143956  Carex bolanderi Roxana S. Ferris, Laura Lorraine 1961-6-14 13539 Sonoma Joy Road Grade, 1.8 miles from jct. with Bodega Hwy Comment
  CAS-BOT-BC34023  Carex brevicaulis Alice Eastwood; John Thomas Howell; J. W. Stacey 1937-5-31 4498 Sonoma 6.5 miles south of Gualala River. Sonoma coast. Comment
  CAS-BOT-BC34424  Carex cusickii Peter Rubtzoff 1951-6-10 189 Sonoma Pitkin Marsh near Forestville. Northern half of Lower Marsh. Comment
  UCR248865  Carex cusickii Peter Rubtzoff 1958-5-17 3678 Sonoma Laguna de Santa Rosa, east of Cunningham [Rd.] (near Llano Road) 31 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-BC20488  Carex densa G. DeNevers 1981-6-15 1549 Sonoma Pepperwood Ranch. At Rogers Apple Orchard. Comment
  CAS-BOT-BC20514  Carex densa Peter Rubtzoff 1954-6-7 1478 Sonoma Sonoma County Marshes. Guerneville Marsh. Comment
  CAS-BOT-BC242640  Carex densa Peter Rubtzoff 1958-4-26 3604 Sonoma Laguna de Santa Rosa east of Sebastopol Comment
  UC70609  Carex densa F. Bioletti 1893-5-22 Sonoma Glen Ellen Comment
  CAS-BOT-BC20505  Carex densa Peter Rubtzoff 1958-5-3 3622 Sonoma Sonoma County Marshes. Atascadero Creek Marsh. 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-BC329295  Carex exsiccata Peter Rubtzoff 1960-5-20 4396 Sonoma Laguna de Santa Rosa east of Graton (between Occidental and Guerneville roads). Comment
  CAS-BOT-BC19952  Carex exsiccata John Thomas Howell; J. W. Stacey 1937-6-6 13026 Sonoma Sebastopol. Comment
  UC825094  Carex feta John Thomas Howell, J. W. Stacey 1937-6-6 13038 Sonoma Pitkin Marsh Comment
  CAS-BOT-BC20452  Carex globosa John Thomas Howell; Catherine Best; Wilma Follette; Mary Wells 1982-4-28 54676 Sonoma Bouverie Audubon Preserve, about 1.5 miles east of Glen Ellen near Stuart Creek. 137 Comment
  CAS-BOT-BC28363  Carex gracilior Peter Rubtzoff 1959-5-30 4065 Sonoma freestone Marsh. Comment
  UC8079  Carex gracilior H. N. Bolander 1866-4 4635 Sonoma Petaluma Comment
  CAS-BOT-BC28372  Carex gracilior Alice Eastwood; John Thomas Howell 1936-5-19 2499 Sonoma North Limits of Santa Rosa. Comment
  CAS-BOT-BC32474  Carex gracilior Henry Nicholas Bolander 1864-4-1 3822 Sonoma Meadow at Cloverdale Comment
  UCD112446  Carex gracilior Peter Rubtzoff 1959-4-18 4034 Sonoma Laguna de Santa Rosa northeast of Graton, ca. 0.5 mi. north of Guerneville Road crossing. Comment
  CAS-BOT-BC312678  Carex gynodynama Peter Rubtzoff 1971-6-25 s.n. Sonoma Off west side of Hwy. 1, 0.7 miles southeast of Salmon Creek Crossing Comment
  RSA0023075  Carex gynodynama Peter Rubtzoff 1959-5-31 4085 Sonoma Freestone Marsh. Comment
  CAS-BOT-BC21910  Carex harfordii Peter Rubtzoff 1955-5-21 1857 Sonoma Forestville Marsh. North facing slope bordering the marsh in the south. Comment
  RSA0022360  Carex harfordii Peter Rubtzoff 1964-5-20 5304 Sonoma Brooks Gulch Marsh. Comment
  CHSC114389  Carex hassei Peter Warner; Kara Doolin, Anthony Nelson 2010-6-28 168 Sonoma Lower Pitkin Marsh,--63m, N49 o E ofgate at Hwy. 116, just N of interior fence, in understory of perennialgrasses and herbs. UTM 10S: 511310E, 4256389N, T7N, R9W: Molinos. 39 Comment
  CAS-BOT-BC21030  Carex hendersonii Peter Rubtzoff 1954-6-7 1490 Sonoma East Guernewood, near Guerneville. Comment
  CAS-BOT-BC31180  Carex lemmonii Peter Rubtzoff 1951-7-21 496 Sonoma Pitkin Marsh, near Forestville. Southern half of Lower Marsh. Comment
  SD72056  Carex lemmonii John Thomas Howell 1957-6-13 Sonoma Pitkin Marsh; shaded place in wet soil under azalea bushes. Comment
  UCR248945  Carex leporina Peter Rubtzoff 1966-6-5 5758 Sonoma Laguna de Santa Rosa east of Graton, between Occidental and Guerneville roads 23 Comment
  SEINET10894836  Carex leptopoda Lewis S. Rose 1964-6-3 Rose 64051 Sonoma N. end of Bodega Bay swamp. 2 Comment
  UC767097  Carex mendocinensis Robert F. Hoover 1941-5-14 5091 Sonoma Two miles south of Monte Rio on Road to Camp Meeker. Comment
  CAS-BOT-BC119731  Carex nebrascensis John Thomas Howell 1945-8-14 21411 Sonoma Perry Marsh. Comment
  CAS-BOT-BC119732  Carex nebrascensis John Thomas Howell 1947-6-26 23309 Sonoma Cunningham Marsh Comment
  CDA12282  Carex nudata G. F. Hrusa 1988-2-21 5500 Sonoma North Coast Biodiversity Arena; Sugarloaf Ridge State Park. Upper end of main valley. Comment
  RSA0015489  Carex nudata Marcus E. Jones 1924-4-25 s.n. Sonoma Cloverdale. Comment
  CAS-BOT-BC119311  Carex obnupta Catherine Best 1981-6-5 s.n. Sonoma Ca 5 mi E of Stewart's Point on Stewart's Point Skaggs Creek Rd. Comment
  CAS-BOT-BC119312  Carex obnupta Catherine Best 1981-6-5 s.n. Sonoma Ca 5 mi E of Stewart's Point on Stewart's Point Skaggs Creek Rd. Comment
  SJSU8870  Carex obnupta C. W. Sharsmith 1972-6-24 7804 Sonoma Pitkin Marsh c. 1.5 mi SE of Forestville N of Sebastopol 48 Comment
  RSA0025209  Carex obnupta Peter Rubtzoff 1960-5-18 4392 Sonoma Bodega Head Marsh. Comment
  RSA201424  Carex ovalis J. T. Howell 1947-6-5 23240 Sonoma Cunningham Marsh Comment
  CAS-BOT-BC312676  Carex ovalis Peter Rubtzoff 1955-8-6 2025 Sonoma Duncans Mills Marsh. Comment
  UCR249914A  Carex pachystachya var. pachystachya Peter Rubtzoff 1975-7-3 8151 Sonoma Kenwood Marsh 120 Comment
  RSA52171  Carex praegracilis J. T. Howell 1947-6-26 23295 Sonoma Cunningham Marsh. Comment
  UCD161824  Carex serratodens James A. Neilson Jr. 1975-5-23 3204 Sonoma Abril property, Truit Creek at Big Sulphur Creek. (Exact location unkown, coordinates estimated by label maker.) Comment
  CAS-BOT-BC352236  Carex simulata Peter Rubtzoff 1976-5-30 8561 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC329283  Carex stipata Peter Rubtzoff 1960-6-9 4483 Sonoma Laguna de Santa Rosa area northeast of Graton, near the Laguna Road. Comment
  RSA0020342  Carex stipata Peter Rubtzoff 1958-5-17 3679 Sonoma Laguna de Santa Rosa east of Cunningham (near Llano Rd.) Comment
  UCR208531  Carex subbracteata Peter Rubtzoff 1959-6-13 4124 Sonoma Willow Creek Marsh 9 Comment
  CAS-BOT-BC329286  Carex tumulicola Peter Rubtzoff 1958-5-3 3620 Sonoma Atascadero Creek Marsh. Comment
  CAS-BOT-BC329288  Carex tumulicola Peter Rubtzoff 1960-5-16 4345 Sonoma Duncans Mills Marsh. Comment
  UC2030916  Carex utriculata Peter Rubtzoff 1971-6-29 6578 Sonoma Pitkin Marsh, near Forestville Comment
  UCD19304  Carpobrotus edulis Terry Reedy 1974-5-11 204 Sonoma Bodega Head, between road and freshwater marsh. 3 Comment
  CAS-BOT-BC281916  Carthamus lanatus Peter H. Raven; R. Snow 1958-7-23 13684 Sonoma Near a farm above Wolf Creek, along road to Stewart's Point, 15.5 miles W of Skaggs Springs Comment
  CAS-BOT-BC281918  Carthamus lanatus T. C. Fuller 1970-9-29 19804 Sonoma N side of Valley Ford Rd, 6 miles W of Petaluma Comment
  CAS-BOT-BC281919  Carthamus lanatus Walter & Irja Knight; J. T. Howell 1988-7-9 s.n. Sonoma SE corner Adobe Rd and Petaluma Hill Rd. Penngrove 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
  UCD129937  Carthamus leucocaulos T. C. Fuller 1969-9-16 18901 Sonoma ca. 1 mile west of Asti turn-off of the freeway, Hwy 101, Asti. Comment
  CAS-BOT-BC251253  Caryophyllaceae Peter Rubtzoff 1987-5-3 9765 Sonoma Austin Creek, ca. 0.6 miles north of Hwy. 116 on Austin Creek Road 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
  UCR143607  Castilleja G. F. Pratt, C. Pierce 2003-5-15 s.n. Sonoma North Coast, Salt Point State Park 122 Comment
  JEPS27377  Castilleja ambigua subsp. ambigua H. W. Grinnell 1933-7-21 Sonoma Bodega Bay, old road Bodega Bay Comment
  UC76118  Castilleja attenuata Milo S. Baker 1898-4-23 615 Sonoma Santa Rosa Creek Canyon Comment
  HSC82079  Castilleja exserta subsp. exserta Thomas W. Nelson, Jane P. Nelson 1980-5-3 5126 Sonoma Along Roberts Rd. ca. 100 m past bridge over Copeland Creek, E of Rhonert Park 61 Comment
  UCD122479  Castilleja foliolosa Frederica Bowcutt 1996-5-24 1926 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. Brushy Peaks Trail about 1/2 mile of Gray Pine Trail. 670 Comment
  UC1301201  Castilleja rubicundula subsp. lithospermoides Helen K. Sharsmith 1962-6-3 5118 Sonoma between Calistoga and Santa Rosa (on Calistoga Road); San Francisco Bay Region 91 Comment
  UC726144  Castilleja rubicundula subsp. lithospermoides A. A. Heller 1940-5-10 15613 Sonoma several miles e Skagg's Springs Comment
  JEPS60452  Castilleja subinclusa subsp. franciscana T. I. Chuang and F. M. Chuang 1969-4-29 6690 Sonoma s side Russian River (on Highway 1) Comment
  UC1191869  Castilleja uliginosa Herbert L. Mason 1946-7-4 12892 Sonoma between Santa Rosa and Forestville (Pitkin Marsh); Pitkin Marsh Comment
  UC1032389  Castilleja wightii H. S. Yates 1934-4-21 3811 Sonoma Bodega Point; Duncan Mills Quad. 7 Comment
  UC1614516  Ceanothus Charles M. Belshaw 1936-3-8 1579 Sonoma 3.14 mi. n. Annadel (n.w. of Kenwood) Comment
  OBI10272  Ceanothus confusus H. E. McMinn 1944-11-5 5449 Sonoma Olive orchard on Rincon Ridge Comment
  RSA21892  Ceanothus confusus J. T. Howell 1935-5-5 12620 Sonoma 6 miles from Santa Rosa on road to Sonoma. Comment
  OBI10271  Ceanothus confusus H. E. McMinn 1944-11-5 5451 Sonoma From Olive orchard, Rincon Ridge Comment
  UCD111362  Ceanothus confusus G. F. Hrusa; R. Gross 1995-11-8 12469 Sonoma on N side of Adobe Canyon Road. Comment
  UCSB21172  Ceanothus confusus McMinn, H. 1944-11-5 Sonoma Rincon Ridge Comment
  CDA11330  Ceanothus divergens G. F. Hrusa 1995-4-2 12040 Sonoma North Coast Biodiversity Arena; Franz Valley School Rd. approx. 1 mile NW of Napa/Sonoma county line. Comment
  RSA0028419  Ceanothus divergens A. A. Heller, H. E. Brown 1902-3-27 9008 Sonoma Western base of Mt. Hood. Comment
  CHSC39450  Ceanothus foliosus B. A. Stein; B. Shumacher 1981-3-7 445 Sonoma Vine Hill School Rd. 45 Comment
  UC1070625  Ceanothus foliosus H. S. Yates 1934-4-21 3827 Sonoma 2 mi n County Farm; Santa Rosa quad. 243 Comment
  SEINET11191419  Ceanothus foliosus subsp. foliosus C. L. Schmidt 1987-2-27 1135 Sonoma 4 miles up Cavedale from CA-12, Hooker Canyon. 500 Comment
  CAS-BOT-BC64420  Ceanothus foliosus subsp. vineatus Walter Knight; Irja Knight 1963-11-21 415 Sonoma Vine Hill School Rd. Comment
  CAS-BOT-BC49905  Ceanothus foliosus var. foliosus Walter Knight; Irja Knight 1963-8-23 189 Sonoma Joost Ranch, Calistoga Rd. Comment
  CDA31311  Ceanothus foliosus var. foliosus D. G. Kelch, Ed Biffin 2010-5-3 10 .194 Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  CAS-BOT-BC49993  Ceanothus gloriosus John Thomas Howell 1937-4-11 12902 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  CAS-BOT-BC50008  Ceanothus gloriosus John Thomas Howell 1935-5-5 12619 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  JEPS42421  Ceanothus gloriosus F. W. Hoffman 1928-3-30 Sonoma Lone Mountain Farm Guerneville Comment
  CAS-BOT-BC49948  Ceanothus gloriosus var. exaltatus Walter Knight; Irja Knight 1963-11-21 417 Sonoma Guerneville Rd near Laguna Rd. Comment
  UC604115  Ceanothus gloriosus var. exaltatus Leo Koch 1938-3-30 72 Sonoma Santa Rosa Junior College Campus. Beside north entrance. Vine Hill region Comment
  UC870564  Ceanothus gloriosus var. exaltatus Leo Koch 1938-5-26 165 Sonoma transplanted from Vine Hill near type locality Santa Rosa (Junior College). Comment
  RSA276845  Ceanothus integerrimus James I. McMurphy 1909-5-29 s.n. Sonoma Creek between Geyser Mtn and the Geysers Comment
  CAS-BOT-BC50952  Ceanothus integerrimus H. N. Bolander 4721 Sonoma Russian River - Valley Comment
  CAS-BOT-BC50720  Ceanothus integerrimus var. macrothyrsus Helen D. Geis 1902-1-1 s.n. Sonoma unspecified Comment
  CAS-BOT-BC50650  Ceanothus jepsonii Catherine Best 1981-4-4 s.n. Sonoma Harrison Grade Road 2 miles north of Occidental Comment
  UCD160147  Ceanothus oliganthus var. sorediatus James A. Neilson Jr. 1974-4-24 2717 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
  CAS-BOT-BC51870  Ceanothus parryi H. E. McMinn 1922-6-7 165 Sonoma Camp Meeker Comment
  CAS-BOT-BC51877  Ceanothus parryi Peter Rubtzoff 1953-5-17 1384 Sonoma Forested hills South of Guerneville (Neeley Hill area) Comment
  CAS-BOT-BC51893  Ceanothus parryi J. W. Congdon 1892-5-30 s.n. Sonoma Cazadero Comment
  UC1299539  Ceanothus parryi Freed W. Hoffman 1947-5-30 521 Sonoma Layton Mine North Coast Ranges, Austin Creek (Austin Creek) Comment
  LA44884  Ceanothus parryi Henry Reents; 1936-4-4 sn Sonoma Along Rutherford Rd., 2 mi. E. of Glen Ellen Comment
  RSA32475  Ceanothus parryi Leo Koch 1939-05 631 Sonoma Campus of Santa Rosa Junior college, from Transplant near Qecidental Comment
  CAS-BOT-BC52125  Ceanothus prostratus J. Clausen 1933-3-26 740 Sonoma Rincon Range east of Santa Rosa Comment
  CAS-BOT-BC53003  Ceanothus sonomensis John Thomas Howell 1935-5-5 12609 Sonoma Slopes of Triniti Mt., 2 miles e. of Glen Ellen Comment
  RSA753880  Ceanothus sonomensis Dylan O. Burge, C. Miller 2007-6-12 DOB 939 c Sonoma Mayacmas Mts., head of Hooker Canyon, roadside on Cavedale Road, 4.0 road miles (6.4 km) E of SR 12. 4.90 km 85 degrees (True) ENE of Glenn Ellen. 560 Comment
  RSA755235  Ceanothus sonomensis Dylan O. Burge 2007-4-26 DOB 895 c Sonoma Mayacmas Mts.: head of Hooker Canyon, roadside on Cavedale Road, 4.0 road miles east of SR 12, 4.9 km 85 degrees true ENE of Glen Ellen. 560 Comment
  UCD112701  Ceanothus sonomensis Roman Gankin 1966-3-3 689 Sonoma On south-facing slope in Hooker Canyon, below Cavedale Road, 3.1 miles east of junction with State Highway 12. Comment
  UCD123864  Ceanothus sonomensis D. O. Burge 2007-4-26 895 e Sonoma Mayacamas Mountains, head of Hooker Canyon, roadside on Cavedale Road, 4.0 road miles (6.4 km) east of SR 12, 4.90 km 85 deg. (True) ENE of Glen Ellen. This site is the property of residents at 3890 Cavedale Road. 560 Comment
  UCD112734  Ceanothus thyrsiflorus var. griseus P. B. Kennedy 1919-5-16 s.n. Sonoma Del Mar. Comment
  CAS-BOT-BC52394  Ceanothus velutinus Bell Richardson Jackson 1924-8-1 s.n. Sonoma Mt. St. Helena Comment
  OBI70820  Celtis reticulata Matt Ritter 2009-7-2 s.n. Sonoma Street tree in Petaluma Comment
  CAS-BOT-BC277255  Centaurea solstitialis G. DeNevers 1981-6-20 1584 Sonoma Pepperwood Ranch. Leslie Creek Comment
  CAS-BOT-BC157673  Centromadia Peter Rubtzoff; Nancy Harrison 1977-8-26 9118 Sonoma False Lake Meadow area, Annadel State Park. Comment
  UC75838  Centromadia fitchii Miss M. Alice King 1897-6-1 Sonoma near Healdsburg Comment
  RSA105368  Cerastium arvense M. V. Ott 1934-3-31 70 Sonoma Larkspur Hill about 3 miles W of Bodega, near the coast. Comment
  CDA16230  Ceratophyllum demersum G. F. Hrusa, R. Gross 1998-2-15 14151 Sonoma Knights Valley; Foote Ranch. 0 Comment
  CAS-BOT-BC400227  Ceratophyllum demersum Peter Rubtzoff 1955-8-27 2103 Sonoma Bennett Mtn. Lake 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
  UCD160819  Chaenactis glabriuscula var. heterocarpha James A. Neilson Jr.; Teresa A. Sholars 1975-6-20 3434 Sonoma Section 10, ca. 1.5 miles west of The Geysers Resort. (Exact location unknown. Elevation and coordinates estimated by label maker.) 396 Comment
  RSA437541  Chamaemelum fuscatum R. C. Bacigalupi 1948-4-4 2870 Sonoma In vineyard, ca. 2 mi. so. of Asti, along US 101 Comment
  CDA7375  Chamaemelum fuscatum T. C. Fuller 1970-5-4 19486 Sonoma 2 miles west of the freeway overpass, Highway 101, Asti. 0 Comment
  UC1481824  Cheilanthes covillei Milo Baker 1902-4 4 a Sonoma Hood Mt Comment
  CAS-BOT-BC68222  Cheilanthes gracillima James Jokerst 1985-5-29 2391 Sonoma Whispering Pines Quad. near Cobb Mountain 1126 Comment
Read comments
Jan 26 2018
  UCD137335  Cheilanthes intertexta Frederica Bowcutt 1996-3-24 2082 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. 0.5 air miles SE of Red Mountain. 563 Comment
  CAS-BOT-BC166742  Chenopodium Peter Rubtzoff 1968-9-21 5987 Sonoma Petaluma Creek at Stony Point Road, 4 miles northwest of Petaluma. Comment
  CAS-BOT-BC166798  Chenopodium Peter Rubtzoff 1971-8-9 6638 Sonoma Laguna, Chileno Valley. Comment
  UCD158802  Chenopodium californicum James A. Neilson Jr. 1974-1 3062 Sonoma Mayacmas Mountains. Big Geysers. (Elevation estimated using topo map by label maker.) 548 Comment
  CAS-BOT-BC499255  Chlorogalum pomeridianum Peter Rubtzoff 1951-7-14 476 Sonoma Pitkin Marsh, near Forestville, uppermost part of the western branch of the Upper Marsh Comment
  RSA227212  Chlorogalum pomeridianum var. pomeridianum Peter Rubtzoff 1958-7-19 3765 Sonoma Laguna de Santa Rosa, east of Sebastopol. Comment
  RSA369225  Chlorogalum pomeridianum var. pomeridianum Christopher Davidson 1977-6-20 6010 Sonoma Dry Cr. Rd., 8.6 mi. W of Geyserville 91 Comment
  OBI11171  Chorizanthe cuspidata var. villosa Lewis S. Rose 1962-8-6 62077 Sonoma Bodega Point 30 Comment
  UC126080  Chorizanthe cuspidata var. villosa Katharine Brandegee June 1905 Sonoma Bodega Point Comment
  JEPS86335  Chorizanthe membranacea Jack and Betty Guggolz 1988-6-13 947 Sonoma on the ne side of Pine Flat Road 7.2 mi from its junction with Highway 128 Comment
  CAS-BOT-BC257011  Chorizanthe membranacea H. N. Bolander 1860-1-1 3959 Sonoma At the geysers Comment
  SEINET7883461 Image available Chrysanthemum segetum Lewis S. Rose 1938-9-11 38251 Sonoma Bloomfield 30 Comment
  RSA791552  Cichorium intybus Peter Rubtzoff 1955-9-10 2128 Sonoma Marshes: Guerneville Marsh. Comment
  CAS-BOT-BC285250  Cichorium intybus W. W. Carruth 1900-7-1 s.n. Sonoma Near Healdsburg Comment
  RSA155533  Cicuta douglasii L. S. Rose 1960-9-14 60090 Sonoma Laguna de Santa Rosa, 2 miles east of Grafton 15 Comment
  RSA0035353  Cirsium Peter Rubtzoff 1955-9-24 2146 Sonoma Duncan Mills Marsh, upper portion of the marsh. Comment
  POM179716  Cirsium brevistylum J. T. Howell 1930-6-8 5245 Sonoma 2 miles east of Bodega. Comment
  UCD161669  Cirsium cymosum James A. Neilson Jr.; Teresa A. Sholars 1975-6-20 3369 Sonoma Section 10, the Geysers. (Exact location unknown. Elevation and coordinates estimated by label maker.) 388 Comment
  POM53745  Cirsium douglasii var. breweri A. A. Heller 1902-7-2 5804 Sonoma Santa Rosa creek, east of Santa Rosa. Comment
  CAS-BOT-BC290642  Cirsium occidentale var. occidentale Peter Rubtzoff 1960-9-14 4546 Sonoma Laguna de Santa Rosa area, east of Graton, between Occidental and Guerneville roads. Comment
  UC76019  Cirsium occidentale var. venustum Milo S. Baker 1898-6-11 658 Sonoma Little Sulphur Creek Comment
  CAS-BOT-BC280536  Cirsium quercetorum John H. Thomas 1976-6-16 18277 Sonoma Southern part of Sea Ranch, northwestern part of county, about 7 miles south of Gualala 30 Comment
  CAS-BOT-BC280539  Cirsium quercetorum John Thomas Howell 1938-7-3 13953 Sonoma Stony Point Comment
  CAS-BOT-BC280533  Cirsium quercetorum Mrs. H. C. Cantelow 1936-5-3 s.n. Sonoma Near El Verano Comment
  CAS-BOT-BC280538  Cirsium quercetorum John Thomas Howell 1937-6-6 13047 Sonoma 7 miles n. of Petaluma on Stony Point road Comment
  CAS-BOT-BC285754  Cirsium remotifolium Marcus E. Jones 1882-7-18 3385 Sonoma Duncan's Mills Comment
  RSA73992  Cirsium remotifolium var. odontolepis M. S. Baker 1931-5-22 5209 Sonoma Bennett Valley Road, south of Weavers. Comment
  UC107816  Clarkia amoena Katharine Brandegee 1905-6-26 Sonoma Bodega Bay Comment
  UCD104021  Clarkia amoena Frederica Bowcutt; Joy Keeney, Adam Greene 1994-5-21 1810 b 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 and about 18 air miles NW of Napa. Along meadow trail appx. 3/4 mile from trailhead. 396 Comment
  UC107819  Clarkia amoena subsp. amoena Katharine Brandegee 1905-6-26 Sonoma Bodega Bay Comment
  CAS-BOT-BC161050  Clarkia amoena subsp. amoena Paul F. Covel 1938-7-11 1435 Sonoma Bluffs 15 mi no. Ft Ross Comment
  JEPS82307  Clarkia amoena subsp. huntiana Roger Raiche 1983-7-5 30483 Sonoma n. Plantation (Tin Barn Rd. (3.5 mi. n. of King Ridge Rd.)) Comment
  UC1072039  Clarkia amoena subsp. huntiana H. and M. Lewis 1947-6-15 434 Sonoma 3.7 mi s Fort Ross Historical Monument (Highway 1) Comment
  CAS-BOT-BC172206  Clarkia concinna Rimo Bacigalupi 1926-5-2 1397 Sonoma Cazadero Comment
  CAS-BOT-BC172208  Clarkia concinna C. F. Leitholt 1893-6-1 s.n. Sonoma Bennett Valley Comment
  CAS-BOT-BC172209  Clarkia concinna Peter Rubtzoff 1952-6-9 1184 Sonoma North slopes of Fitch Mtn., near Healdsburg Comment
  CAS-BOT-BC172221  Clarkia concinna Mrs. E. C. Sutliffe 1927-6-1 s.n. Sonoma Near Monte Rio Comment
  CAS-BOT-BC172222  Clarkia concinna Mrs. E. C. Sutliffe 1894-5-15 s.n. Sonoma Cazadero Comment
  CAS-BOT-BC172203  Clarkia concinna Wayne Roderick 1967-6-18 s.n. Sonoma Mark West Springs Road, n.e. of Santa Rosa 60 Comment
  POM161720  Clarkia concinna subsp. concinna R. C. Bacigalupi 1928-5-2 1397 Sonoma Cazadero. Comment
  POM32268  Clarkia concinna subsp. concinna Michener, Bioletti 1893-06 s.n. Sonoma Kenwood Comment
  RSA144395  Clarkia concinna subsp. concinna Roxana S. Ferris, Laura Lorraine 1961-6-15 13550 Sonoma Green Valley Road 0.8 miles E of junction with Harrison Grade Road. Comment
  UCR218635  Clarkia concinna subsp. concinna George K. Helmkamp, E. A. Helmkamp 2010-6-4 16206 Sonoma North Coast Ranges, Mark West Springs Road, 1.7 rd. miles east of US-101, 2.5 air miles NE (75 deg. ) of Fulton 63 Comment
  UCD104045  Clarkia davyi Frederica Bowcutt 1984-6-23 417 Sonoma Salt Point State Park. Approx. 20 miles N of Jenner and 80 miles S of Fort Bragg on the Sonoma County coast. W of Highway 1, N of Gerstle Cove about 1/8 mile. 15 Comment
  UC58863  Clarkia gracilis subsp. sonomensis Milo S. Baker 1898-6-12 670 Sonoma between Cloverdale and Geyserville Comment
  UC76446  Clarkia gracilis subsp. sonomensis Miss M. Alice King May 1897 Sonoma near Healdsburg Comment
  RSA125115  Clarkia gracilis subsp. sonomensis Peter H. Raven 1958-7-23 13686 Sonoma 8.3 miles east of Skaggs Springs on the road to Stewarts Point Comment
  CAS-BOT-BC163153  Clarkia imbricata Peter H. Raven; Richard Snow 1958-7-23 13691 Sonoma At 4551 Vine Hill Road near Pitkin Marsh Comment
  LA87839  Clarkia imbricata H. Lewis; M. Lewis 1951-7-10 865 Sonoma 6230 Vine Hill Rd, between Santa Rosa and Guerneville Comment
  CAS-BOT-BC172355  Clarkia purpurea subsp. viminea J. W. Congdon 1880-6-5 s.n. Sonoma Petaluma Comment
  CAS-BOT-BC165677  Clarkia unguiculata 1938-5-28 s.n. Sonoma Alexander Valley toward Geyserville Comment
  JEPS43595  Clarkia unguiculata W. L. Jepson 1923-6-28 10014 Sonoma Sonoma Canyon Kenwood 243 Comment
  SEINET12194280  Clarkia unguiculata F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -196 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd 740 Comment
  JEPS128336  Claytonia exigua Roger Raiche 2010-2-28 009 .10 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC439405  Claytonia gypsophiloides Mrs. H. C. Cantelow 1938-5-1 4215 Sonoma 9 mi. N. of Kenwood Comment
  RSA17448  Claytonia gypsophiloides Elmer I. Applegate 1934-3-25 8846 Sonoma Sausal Creek, western foothills of the Mayacama Mts. Comment
  SEINET7075542  Claytonia parviflora 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
  POM118511  Claytonia perfoliata Marcus E. Jones 1924-4-23 s.n. Sonoma Petaluma Comment
  SEINET11935786  Claytonia perfoliata Unknown 1987-1 70028 Sonoma S of mouth of Russian River, Goat Rock State Park, W of Coast Hwy 1, S of main entrance rd into park 9 Comment
  CAS-BOT-BC92749  Clematis ligusticifolia Peter Rubtzoff 1970-8-31 6349 Sonoma Along bank of Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  SEINET7075544  Collinsia grandiflora 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
  UC26616  Collinsia greenei H. N. Bolander 1866-1 3968 Sonoma The Geysers Comment
  POM14838  Collinsia sparsiflora var. arvensis A. A. Heller 1903-4-23 6601 Sonoma Fort Ross. From type locality. Comment
  JEPS34522  Collinsia sparsiflora var. arvensis Freed W. Hoffman 1947-3-16 828 Sonoma near Guerneville (rd to Austin Ranch, headwaters of Fife Creek); North Coast Ranges Comment
  UC879756  Collomia grandiflora Eliz. Parsons Hawver 1915-6-3 Sonoma Skaggs Springs Comment
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Jan 23 2016
  UC23632  Collomia heterophylla Harley P. Chandler 1900-5-25 662 Sonoma Bodega Comment
  POM193922  Collomia heterophylla J. T. Howell 1929-6-30 4317 Sonoma 6 miles from Petrified Forest on road to Knights Valley Comment
  CAS-BOT-BC288969  Conyza floribunda Mary P. Wells 1990-1-3 1027 Sonoma Edge of large parking lot two blocks W of Laguna de Santa Rosa Creek, Sebastapol Comment
  UCD138903  Corallorhiza mertensiana Paula Anderson 1977-5-25 31 Sonoma Salt Point State Park. 15 Comment
Read comments
May 16 2017
  SEINET13679568  Cordylanthus pallescens M. J. Williams, Wayne Roderick 1978-7-16 78- 228 -4 Sonoma Near Occidental. Comment
  SJSU5741  Cordylanthus pilosus L. S. Rose 1956-8-20 56152 Sonoma Rincon Ridge E of Santa Rosa 91 Comment
  SEINET12327524  Cordylanthus pilosus W. Knight, Knight, I. 1984-1 5074 Sonoma 4.1 mi up Cavedale Rd from St. 12 640 Comment
  JEPS6780  Cordylanthus pilosus subsp. pilosus W. L. Jepson 1895-8-30 21341 Sonoma Petrified Forest Comment
  RSA0006006  Cordylanthus pilosus var. brunneus W. L. Jepson 1894-7-19 21109 Sonoma Mt. St. Helena Comment
  JEPS82263  Cordylanthus pringlei Roger Raiche 1983-8-6 30586 Sonoma near old mine buildings (headwaters of creek); Austin Creek, The Cedars, Laton Mine Comment
  JEPS20297  Cordylanthus tenuis subsp. capillaris Lewis S. Rose 1955-7-11 55110 Sonoma 2 mi e Occidental 243 Comment
  JEPS29842  Cordylanthus tenuis subsp. capillaris Rimo Bacigalupi and L. Heckard, J. Weiler 1961-6-23 7832 Sonoma ca. 3/4 mi nw Occidental School (nw of garbage disposal area, along Stoetz Lane, 0.5 mi nw of its junction with Harrison Grade road.) 228 Comment
Read comments
Jul 27 2009
  RSA107417  Cordylanthus tenuis subsp. capillaris L. S. Rose 1955-7-11 s.n. Sonoma 2 miles NE of Occidental 244 Comment
  UC727699  Cordylanthus tenuis subsp. capillaris Milo S. Baker 1946-7-4 11523 Sonoma 2 mi ne Occidental; Harrison Grade Comment
  CAS-BOT-BC249261  Cornus Peter Rubtzoff 1973-8-31 7290 Sonoma Upper Green Valley Marsh, slope of Green Valley Road bank bordering the marsh. 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-BC212288  Cornus glabrata Peter Rubtzoff 1960-5-29 4420 Sonoma Laguna de Santa Rosa near Trenton south of Woolsey Road Comment
  CAS-BOT-BC212289  Cornus glabrata Peter Rubtzoff 1958-7-26 3815 Sonoma Laguna de Santa Rosa east of Sabastapol Comment
  CAS-BOT-BC209880  Cornus nuttallii A. T. Graff 1922-5-1 s.n. Sonoma Cazadero Comment
  UCR255050  Cornus nuttallii Greg de Nevers 1993-4-27 10414 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 457 Comment
  CAS-BOT-BC210440  Cornus sericea John Thomas Howell 1945-7-18 21317 Sonoma Pitkin Marsh Comment
  UCSB1014  Corylus cornuta subsp. californica Keator, Glenn 1959-4-2 Sonoma 0.6 miles north of junction of Laguna road and 5.1 miles north of Sebastopol in Vinehill region Comment
  CHSC118276  Cotoneaster franchetii Barbara L. Wilson 2015-9-22 18824 Sonoma Santa Rosa, Howarth Lake. 71 Comment
  CAS-BOT-BC290300  Cotula coronopifolia Peter Rubtzoff 1951-7-14 451 Sonoma Pitkin Marsh, near Forestville. Northern half of Lower Marsh Comment
  SD206989  Crassula aquatica Reid Moran, C. Quibell and W. Knight. 1991-5-21 31054 Sonoma Diversion channel south of Spring Lake, Santa Rosa. 99 Comment
  CDA25821  Crataegus douglasii T. C. Fuller 1958-5-24 3995 Sonoma Pitkin Marsh, near Forestville. 0 Comment
  CAS-BOT-BC143511  Crataegus gaylussacia Peter Rubtzoff 1973-10-10 7344 Sonoma (Tributary of Americano Creek) 2 mi. west of Bloomfield Comment
  CAS-BOT-BC143512  Crataegus gaylussacia Lewis S. Rose 1962-6-1 62066 Sonoma 1 mi. nw of Freestone [This locality is near Freestone Marsh] 76 Comment
  UC963911  Cressa truxillensis Milo S. Baker 1946-10 11710 Sonoma less than 1 mi. n. of junction of Sears Point Cutoff and Black Point Hwy. (near Bay marsh) Comment
  HSC7976  Croton setiger L. S. Rose 1964-8-26 64065 Sonoma 6.5 mi. NE of Penngrove 427 Comment
  UCR246781  Crupina vulgaris Les Sonder 1990-1-25 s.n. Sonoma Anadell State Park, Santa Rosa 351 Comment
  CDA4461  Crupina vulgaris G. D. Barbe 1991-5-15 4412 (b) Sonoma Inside western boundary of Annadel State Park, Santa Rosa. Comment
  SEINET11686587  Crypsis W. Knight, Knight, I.; Edwards, S. W. 1984-1 5041 Sonoma along Willow Creek between Denman Flat & Corona Road, near Petaluma Comment
  CAS-BOT-BC190101  Crypsis schoenoides David L. Morgan 1960-9-10 s.n. Sonoma Old Redwood Highway, 0.5 mile south of Penngrove. Comment
  CAS-BOT-BC190102  Crypsis schoenoides Peter Rubtzoff 1960-9-17 4572 Sonoma Laguna de Santa Rosa near Trenton (south of Woolsey Road). Comment
  CAS-BOT-BC368011  Crypsis schoenoides Greg de Nevers 1989-12-3 9119 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Natural Pond. 400 Comment
  RSA262197  Crypsis schoenoides Peter Rubtzoff 1969-10-29 6200 Sonoma Pond on River Road 3 miles W of Fulton. Comment
  JEPS30831  Cryptantha leiocarpa Rimo Bacigalupi, and L. R. Heckard 1962-6-19 8587 Sonoma 0.25 mi se Horseshoe Cove (at ne base of low hills forming Bodega Head proper); Bodega Head 12 Comment
  UC857170  Cryptantha leiocarpa Milo S. Baker 1934-6-1 7704 Sonoma Wrights Beach Comment
  UC905112  Cryptantha muricata Milo S. Baker 1947-5-7 11735 Sonoma near base of Sugar Loaf (sw slope of Hood Mt.); Hood Mt. 365 Comment
  UCD110844  Cupressus macnabiana Christopher Mallek 2008-1 s.n. Sonoma Hooker Canyon. 590 Comment
  CAS-BOT-BC85466  Cupressus sargentii David Daniels Keck 1933-11-6 2651 Sonoma 4 mi. N. of Occidental Comment
  CAS-BOT-BC85472  Cupressus sargentii J. Ed. McClellan; Mrs. J. Ed. McClellan 1975-1-11 s.n. Sonoma Harrison Grade Rd. Comment
  RSA178042  Cupressus sargentii Robert F. Thorne 1965-4-19 34281 Sonoma Near county dump on Stoetz Road off of Harrison Grade ca. 2 miles NNE of Occidental. 183 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
  UCD133619  Cupressus sargentii Roxana S. Ferris; Laura Lorraine 1961-6-15 13565 Sonoma Harrison Grade, 1.3 mi. from junction with Green Valley Road. Comment
  UCD67619  Cupressus sargentii D. Sanchez-Mata; P. Rodriguez Rojo 1996-8-9 s.n. Sonoma Camp Meeker-Monte Rio. Dutch Bill Creek. 800 Comment
  CAS-BOT-BC85463  Cupressus sargentii Milo Samuel Baker 1928-1-2 3383 a Sonoma north of Mill Creek 2 or 3 miles on trail from Cooper's Ranch Comment
  UC1026477  Cynodon dactylon Peter Rubtzoff 1951-7-14 425 Sonoma Pitkin Marsh, southern half of Lower Marsh; near Forestville Comment
  UC483308  Cynoglossum grande Ira L. Wiggins 1932-3-12 5760 Sonoma between Knight's Valley and Franz Valley Comment
  CAS-BOT-BC190431  Cynosurus echinatus G. DeNevers 1982-4-18 1951 Sonoma Pepperwood Ranch. Along the road to Hansel's Lake. Comment
  CAS-BOT-BC190432  Cynosurus echinatus G. DeNevers 1982-4-30 1954 Sonoma Pepperwood Ranch. In pasture at bottom of Hansel's driveway. Comment
  CAS-BOT-BC190475  Cynosurus echinatus Roxana S. Ferris; Laura Lorraine 1948-6-9 11663 Sonoma 11 miles from Geyserville on road to Kellogg. Comment
  SDSU985  Cynosurus echinatus D. F. Howe 1963-5-23 3527 Sonoma 3.8 miles north of Cloverdale on #128 335 Comment
  UC552760  Cynosurus echinatus Joseph P. Tracy 1935-7-7 14048 Sonoma near the Geysers; near the Geysers 609 Comment
  UCD60165  Cynosurus echinatus David L. Morgan 1956-5-29 s. n. Sonoma On Burnside Rd., near junction of Barnett Valley Rd. Comment
  UCR254743  Cyperus Peter Rubtzoff 1970-9-2 6352 Sonoma Russian River bottom at Mirabel Park 5 Comment
  CAS-BOT-BC350944  Cyperus Peter Rubtzoff 1970-9-2 6352 Sonoma Russian River bottom at Mirabel Park. Comment
  CAS-BOT-BC114515  Cyperus eragrostis Walter Knight; Irja Knight 1963-10-29 400 Sonoma Roblar Rd. Wet spot near county dump. Comment
  CAS-BOT-BC435187  Cypselea humifusa Peter Rubtzoff 1966-6-26 5764 Sonoma Laguna de Santa Rosa east of Graton, betw. Occidental and Guerneville roads. Comment
  UC1606175  Cyrtomium falcatum Liz Parsons and Wendy Born Dec 1995 Sonoma s slope Hood Mt; Hood Mt Regional Park Comment
  CAS-BOT-BC445551  Damasonium californicum Peter Rubtzoff 1972-6-29 6812 Sonoma Laguna, Chileno Valley. Collected at about Marin-Sonoma county line. Comment
  CAS-BOT-BC445552  Damasonium californicum Peter Rubtzoff 1970-6-6 6255 Sonoma At Marin County line on Tomales-Petaluma Road. Comment
  SBBG56539  Damasonium californicum S. W. Hutchinson -Apr-1927 18 Sonoma Petaluma 5 Comment
  CAS-BOT-BC176175  Danthonia californica Peter Rubtzoff 1971-6-5 6508 Sonoma Vernal pool 4.25 mi. west of Glen Ellen on Bennett Valley Road. Comment
  CAS-BOT-BC210057  Danthonia californica Peter Rubtzoff 1957-5-11 3345 Sonoma Occidental Marsh. Comment
  JEPS121156  Danthonia californica Lowell Ahart, John Dittes, Josephine Guardino, Dr. Marge Anthony 2013-4-25 18595 Sonoma 0.7 air miles E of Pacific Ocean, 0.8 air miles W of Gualala River. Comment
  UCD144428  Danthonia californica Frederica Bowcutt; Jolie Hendricks, Jeff Kennedy 1994-5-1 1793 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
  UCD60470  Danthonia californica H. S. Yates 1936-5-16 5579 Sonoma 1 mile NE of Graton. 30 Comment
  UCD61014  Danthonia californica R. Tofsrud 1948-5-9 Sonoma Old Santa Rosa cemetery, Santa Rosa. Comment
  UCR280018  Danthonia californica Peter Rubtzoff 1974-5-18 7414 Sonoma Todd Road, 1.4 miles from Hwy 116 and 0.6 miles from Llano Road 29 Comment
  SBBG115622  Danthonia californica B. Crampton 1964-5-12 6952 Sonoma ca. 14 mi NW of Calistoga on St Hwy 128, jct with Chalk Hill Rd Comment
  CAS-BOT-BC154983  Datura Peter Rubtzoff 1969-8-14 6131 Sonoma Along Salmon Creek, ca. 0.5 mi. upstream from Highway #1. Comment
  CAS-BOT-BC154986  Datura Peter Rubtzoff; Irene Rubtzoff 1968-8-31 5940 Sonoma Russian River bottom at Forest Hills, 5.5 mi. E of Guerneville. Comment
  JEPS15985  Daucus carota W. L. Jepson 1931-7-19 15936 Sonoma Bodega, Watson School 152 Comment
  UC353900  Daucus pusillus Milo S. Baker 1927-5-7 2122 a Sonoma slope above house at Maple Glen Comment
  UCD166347  Deinandra corymbosa Peter Rubtzoff 1954-8-3 1646 Sonoma Bodega Head Marsh. Comment
  UC727734 Image available Delphinium bakeri Milo S. Baker 1946-4-25 11337 Sonoma Coleman Val., West of Occidental on Hedrin Ranch Comment
  CAS-BOT-BC9574  Delphinium bakeri E. Armstrong 1932-5-7 5900 Sonoma Coleman Valley at Hedrin Ranch Comment
  RSA90505  Delphinium bakeri Milo S. Baker 1946-4-25 11337 Sonoma Coleman Valley; West of Occidental on Hendrin Ranch Comment
  CAS-BOT-BC9016  Delphinium decorum Ella D. Cantelow 1940-4-6 4274 Sonoma W of Bodega on Larkspur Rock Comment
  UC726246  Delphinium decorum subsp. tracyi A. A. Heller 1938-5-14 15089 Sonoma steep slope a mi or more e Bodega Bay Comment
  JEPS6240  Delphinium hesperium M. E. and E. Van E. Ferguson Jun 8 1919-Jun 10 1919 220 Sonoma between Guerneville and Monte Rio; Russian River Comment
  UCR25999  Delphinium hesperium J. Townsend 1977-5-30 s.n. Sonoma E side of Russian River about 2 mi. south of Gurneyville. 18 Comment
  CAS-BOT-BC8009  Delphinium nudicaule Catherine Best 1981-5-2 s.n. Sonoma Bohemian Hwy, 3 miles north of Occidental Comment
  CAS-BOT-BC8011  Delphinium nudicaule Margot Lowry 1983-5-1 44 Sonoma One mile from top of Sonoma Mtn. Road, Sonoma Mountain 500 Comment
  CAS-BOT-BC9893  Delphinium nudicaule John Thomas Howell 1931-4-18 6427 Sonoma 8 miles N of Bay Comment
  RSA304847  Delphinium nudicaule James R. Shevock 1971-3-21 814 Sonoma Near Sugarloaf St Park 152 Comment
  RSA138296  Delphinium patens Volney Rattan 1903-1 1880 Sonoma Healdsburg Comment
  CAS-BOT-BC116446  Delphinium patens subsp. patens A. A. Heller; H. E. Brown 1902-3-25 s.n. Sonoma Near Mark West Springs Comment
  RSA70708  Delphinium variegatum L. S. Rose 1951-5-17 51012 Sonoma Hills E of Agua Caliente. 122 Comment
  UC703181  Delphinium variegatum subsp. variegatum John Thomas Howell 1941-4-5 16175 Sonoma 1 mi s El Verano Comment
  UC906473  Delphinium variegatum subsp. variegatum J. Ewan 1935-5-12 9240 Sonoma 2 mi n Kenwood; Los Guilicos Comment
  UC118682  Delphinium variegatum subsp. variegatum Alice Eastwood 1900-4-7 Sonoma Altruria Comment
  CAS-BOT-BC192603  Deschampsia cespitosa subsp. holciformis David L. Morgan 1956-5-23 s.n. Sonoma 4 mi. S. of Jenner on State Highway #1 Comment
  CAS-BOT-BC192606  Deschampsia cespitosa subsp. holciformis Peter Rubtzoff 1951-6-2 95 Sonoma Western branch of the Upper Marsh Comment
  CAS-BOT-BC192609  Deschampsia cespitosa subsp. holciformis J. W. Congdon 1880-5-31 s.n. Sonoma Santa Rosa Comment
  CAS-BOT-BC192608  Deschampsia cespitosa subsp. holciformis Catherine Best 1982-8-18 s.n. Sonoma Goat Rock Park off of Hwy. 1 Comment
  CAS-BOT-BC201652  Deschampsia danthonioides K. Wagnon 1939-5-11 189 Sonoma In Bennett Valley Comment
  CAS-BOT-BC201957  Deschampsia elongata K. Wagnon 1939-5-14 198 Sonoma Along lane running through lower part of Wagnon Ranch, 5 miles west of Sebastopol Comment
  CAS-BOT-BC227672  Deschampsia elongata Peter Rubtzoff 1971-6-25 6560 Sonoma Intermittent lake off west side of Hwy. 1, 0.7 mi. southeast of Salmon Creek crossing. Comment
  POM207093  Deschampsia elongata A. A. Heller 1902-6-7 5653 Sonoma Bennett Valley, southeast of Santa Rosa. Comment
  UC1131465  Deschampsia elongata H. S. Yates 1936-5-16 5607 Sonoma 1 mi. n.w. Mountain View School; Sebastopol Quad. Comment
  UCD63718  Deschampsia elongata A. A. Beetle; G. L. Stebbins Jr. 1942-6-4 3555 Sonoma 10 miles northeast of Santa Rosa on road to Calistoga. Comment
  JEPS85586  Dichanthelium acuminatum subsp. thermale Rick York, Sally de Becker, Laurie Wickenheiser, and Joe O'Hagan 1990-7-24 90 -1 Sonoma s Little Geysers Creek (The Little Geysers); Whispering Pines Quad., Geysers Region, The Little Geysers Comment
  UCR27417  Dichanthelium acuminatum subsp. thermale John C. Roos, L. Roos 1956-9-1 6598 Sonoma North Coast Range, The Geysers 549 Comment
  RSA126986  Dichanthelium acuminatum var. fasciculatum H. S. Yates 1936-5-6 5589 Sonoma two miles southeast of Forestville 30 Comment
  SEINET12058504  Dichelostemma capitatum F. H. Utech 1995-3-26 95 -50 Sonoma WNW of Lake Sonoma, junction Kelly Road & Rockpile Road Comment
  CAS-BOT-BC502220  Dichelostemma capitatum John Thomas Howell 1931-4-18 6428 Sonoma 8 miles n. of Bay Comment
  UCD139196  Dichelostemma capitatum subsp. capitatum Ivette Loredo-Prendeville; Nicole Canon 1993-4-24 68 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. Comment
  CHSC20585  Dichelostemma congestum Robert A. Schlising; Glenn Keator 1965-5-22 2824 Sonoma About 1 mile north of Occidental; Comment
  CAS-BOT-BC502562  Dichelostemma congestum G. DeNevers 1981-5-9 1076 Sonoma Pepperwood Ranch; above Redwood Canyon, S of it (BLM) Comment
  CAS-BOT-BC249262  Digitalis purpurea Peter Rubtzoff 1954-7-4 1534 Sonoma Austin Creek Marsh area. Comment
  SEINET10662591  Digitaria sanguinalis P. Rubtzoff 1956-9-14 Rubtzoff 2857 Sonoma Vacation Beach, near Guerneville, along Russian River. Comment
  CAS-BOT-BC152291  Diplacus congdonii John Thomas Howell 1954-4-1 29139 Sonoma About 2 miles from Sonoma on road to Napa Comment
  CAS-BOT-BC151749  Diplacus kelloggii John Thomas Howell 1931-4-19 6432 Sonoma Spring Mountain Road, 9.5 miles from St. Helena Comment
  CAS-BOT-BC153328  Diplacus layneae Alice Eastwood 1915-6-5 s.n. Sonoma Petrified Forest Comment
  CAS-BOT-BC151378  Diplacus tricolor Peter Rubtzoff; H. A. Froebe 1971-5-30 6482 Sonoma 4.25 mi. west of Glen Ellen on Bennett Valley Road Comment
  CAS-BOT-BC151376  Diplacus tricolor L. R. Abrams 1918-4-27 6901 Sonoma Santa Rosa Comment
  CAS-BOT-BC151379  Diplacus tricolor Peter Rubtzoff; Nancy Harrison; Walter Lennon 1974-5-11 7400 Sonoma Laguna de Santa Rosa ca. 1 mi. east-souteast of Sebastopol Comment
  UC429275  Disporum hookeri Milo S. Baker 1904-6-20 Sonoma Sonoma Creek Canyon Comment
  RSA304236  Disporum hookeri var. hookeri James R. Shevock 1971-3-21 815 Sonoma Sugarloaf State Park. 152 Comment
  UCR244623  Distichlis spicata Peter Rubtzoff 1955-8-20 2065 Sonoma Bodega Harbor Marsh 0 Comment
  CAS-BOT-BC196919  Distichlis spicata David L. Morgan 1956-6-26 s.n. Sonoma Above Shell Beach, 1/4 mi. S of Goat Rock, off State Hiway #1 Comment
  SEINET10662294  Distichlis spicata P. Rubtzoff 1955-8-20 Rubtzoff 2065 Sonoma Bodega Harbor Marsh. Comment
  CDA1349  Dittrichia graveolens S. Ostrom 2006-9-1 PDR# 1328648 Sonoma Windsor; Shiloh Rd. & Business Park Ct. Comment
  JEPS30786  Dodecatheon hendersonii G. Thomas Robbins 1937-3-25 12 Sonoma e Santa Rosa; Santa Rosa Creek Canyon, e of Santa Rosa Comment
  UC1199856  Dodecatheon hendersonii Herbert L. Mason 1926-3-22 2792 Sonoma near Napa-Sonoma line (near Petrified Forest); near Petrified Forest Comment
  UCD144665  Dodecatheon hendersonii Christine Lee 1993-4-24 96 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 Hillside Trail S of Sonoma Creek. 396 Comment
  UCD55093  Downingia concolor G. F. Hrusa; R. Gross 1996-6-30 13059 Sonoma At west end of Diamond Mtn. Rd.; 2 m. SW of Calistoga. 700 Comment
  SEINET12320776  Downingia concolor W. Knight, Knight, I. 1980-1 3880 Sonoma Half mi S of junction of highways 116 and 121 in Sonoma Valley 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
  JEPS14420  Downingia concolor var. concolor W. L. Jepson 1921-6-2 9301 Sonoma Windsor Comment
  UCD165153  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
  JEPS29138  Downingia pusilla John H. Weiler 1961-4-30 6196 Sonoma 4.4 mi n Sears Point (along State Highway 37) Comment
  CAS-BOT-BC401545  Drosera rotundifolia Peter Rubtzoff 1951-7-8 393 Sonoma Pitkin Marsh, near Forestville. Lower part of the Upper Marsh Comment
  CAS-BOT-BC159447  Drymocallis glandulosa var. glandulosa Peter Rubtzoff 1953-5-18 1410 Sonoma Near road from Edendale to Vacation Beach, near Guerneville Comment
  RSA123329  Drymocallis glandulosa var. wrangelliana H. S. Yates 1934-4-21 3755 Sonoma Near Bodega. 61 Comment
  UC567171  Drymocallis glandulosa var. wrangelliana H. S. Yates 1934-4-21 3812 Sonoma near Bodega Port; Duncan Mills Quad. 7 Comment
  UC1193406  Dryopteris arguta P. Zinke 1950-4-25 115 Sonoma Oat Valley; Quadrangle 61A4 182 Comment
  CAS-BOT-BC71019  Dryopteris arguta A. T. Graff 1926-2-1 s.n. Sonoma Cazadero Comment
  CAS-BOT-BC71022  Dryopteris arguta G. DeNevers 1981-5-9 1081 Sonoma above Redwood Canyon, S of it Comment
  HSC34932  Dryopteris arguta Thomas W. Nelson, James Nelson 1975-3-25 1758 Sonoma Beside Hwy. 128, E of Geyserville at the Sonoma-Napa Co. line Comment
  POM188329  Dryopteris arguta Marcus E. Jones 1931-7-5 29172 Sonoma West of Cloverdale. Comment
  UCR143604  Dudleya G. F. Pratt, C. Pierce 2003-6-12 s.n. Sonoma Pacific Coast, Salt Point State Park 12 Comment
  CAS-BOT-BC411376  Dudleya caespitosa Carl B. Wolf 1927-9-2 1356 Sonoma 8 miles N of Fort Ross Comment
  CAS-BOT-BC411378  Dudleya caespitosa Peter Rubtzoff 1952-6-10 1245 Sonoma Resort at E base of Fitch Mtn., near Healdsburg Comment
  CAS-BOT-BC213758  Dudleya eastwoodiae Alice Eastwood 1900-7-4 s.n. Sonoma Bodega Point Comment
  CAS-BOT-BC428381  Dudleya farinosa Alice Eastwood 1900-7-4 s.n. Sonoma Bodega Point Comment
  CAS-BOT-BC428382  Dudleya farinosa Alice Eastwood 1915-6-29 4890 Sonoma Bodega Point Comment
  RSA785444  Echinochloa Peter Rubtzoff 1971-8-31 6663 Sonoma Todd Road near Stony Point Road 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
  UC1026474  Eleocharis acicularis Peter Rubtzoff 1951-7-21 515 Sonoma area between Upper marshes and Lower marshes (near Forestville); Pitkin Marsh Comment
  CAS-BOT-BC112074  Eleocharis quinqueflora Peter Rubtzoff 1952-5-31 1125 Sonoma Pitkin Marsh, near Forestville: Lower part of the Upper Marsh. Comment
  CAS-BOT-BC94038  Eleocharis radicans Greg de Nevers 1990-5-15 9667 A Sonoma Pepperwood Natural Preserve 3450 Franz Valley Road 457 Comment
  UCD61432  Elymus elymoides Beecher Crampton 1959-6-16 5386 Sonoma 1 mile E of Occidental. Comment
  UCD61908  Elymus glaucus R. Tofsrud 1947-8-1 256 Sonoma Cloverdale. Comment
  CAS-BOT-BC203710  Elymus glaucus subsp. glaucus David L. Morgan 1955-6-28 s.n. Sonoma Two Rock Comment
  UCD62363  Elymus glaucus subsp. glaucus A. A. Beetle; G. L. Stebbins Jr. 1942-6-4 3577 Sonoma Corner of Wright Road and Rt. 12, in outskirts of Santa Rosa. Comment
  UC1146607  Elymus glaucus subsp. virescens Freed W. Hoffman 1943-5-19 2199 Sonoma Russian Gulch North Coast Ranges, Sonoma Coast (cliffs) Comment
  CAS-BOT-BC235230  Elymus multisetus G. DeNevers 1981-7-1 1723 Sonoma Pepperwood Ranch. On the slope W of the Goat Pen in the Garrison Canyon Comment
  UC20095  Epilobium brachycarpum J. Burtt Davy Aug. 1896 4139 Sonoma Russian River Comment
  RSA39868  Epilobium brachycarpum P. A. Munz 1947-10-9 12211 Sonoma Near entrance to Armstrong Redwoods State Park 61 Comment
  CAS-BOT-BC166837  Epilobium canum subsp. latifolium F. G. Krauss 1893-11-2 s.n. Sonoma Krauss Ranch Comment
  CAS-BOT-BC262961  Epilobium ciliatum subsp. ciliatum Peter Rubtzoff 1968-8-31 5946 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  RSA155530  Epilobium ciliatum subsp. ciliatum L. S. Rose 1960-9-14 60096 Sonoma Laguna de Santa Rosa, 4 miles NE of Graton 15 Comment
  CAS-BOT-BC268074  Epilobium ciliatum subsp. watsonii Peter Rubtzoff 1958-8-23 3914 Sonoma Laguna de Santa Rosa, east of Cunningham, near Llano Road. Comment
  UC125546  Epilobium ciliatum subsp. watsonii Katharine Brandegee 1905-1 Sonoma Bodega Head Comment
  UCR248950  Epilobium ciliatum subsp. watsonii Peter Rubtzoff 1962-8-22 5052 Sonoma Bodega Bay Marsh 15 Comment
  RSA0015638  Epilobium ciliatum subsp. watsonii Peter Rubtzoff 1964-6-3 5339 Sonoma Bodega Bay Marsh. Comment
  UCD148324  Epilobium torreyi Peter Rubtzoff 1954-7-27 1578 Sonoma Guerneville Marsh. Comment
  RSA784482  Equisetum Peter Rubtzoff 1973-8-21 7254 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  CAS-BOT-BC57042  Equisetum arvense Peter Rubtzoff 1959-6-20 4183 Sonoma Willow Creek Marsh 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
  SEINET6032328  Equisetum hyemale var. affine P. L. Henderson 1977-4-30 77 -7 Sonoma Bodega Bay, Bodega Head Comment
  RSA784474  Equisetum laevigatum Peter Rubtzoff 1959-8-22 4230 Sonoma South Fork Eel River in Edward R. Hickey State Park. Comment
  UCD148428  Equisetum laevigatum Peter Rubtzoff 1961-8-26 4725 Sonoma Vacation Beach, near Guerneville. Comment
  CAS-BOT-BC57647  Equisetum telmateia Peter Rubtzoff 1959-6-7 4109 Sonoma Russian River betw. East Guernewood and Vacation Beach, near Guerneville Comment
  UCD62972  Eragrostis cilianensis L. Whitney 1935-10-2 3634 Sonoma Santa Rosa. Comment
  UCR131632  Eragrostis diffusa Beecher Crampton 1953-11-18 1736 Sonoma Knights Valley, 10 miles northwest of Calistoga, along State Highway 128 290 Comment
  CAS-BOT-BC182757  Eragrostis mexicana subsp. virescens Peter Rubtzoff 1954-7-3 1517 Sonoma Vacation Beach, near Guerneville. 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
  RSA785924  Erechtites glomeratus Peter Rubtzoff 1954-8-3 1636 Sonoma Lower Salmon Creek Marsh. Comment
  SEINET11265218  Erechtites glomeratus Kaye H. Thorne 1984-11-21 3634 Sonoma Sea Ranch, 2.5 miles South Gualala, stabilized coast dunes old sheep ranch.; 0 Comment
  RSA784477  Erechtites minimus Peter Rubtzoff 1974-8-4 7799 Sonoma Upper Green Valley Marsh area. Comment
  RSA169314  Eremocarpus setiger L. S. Rose 1964-8-26 64065 Sonoma 6.5 miles NE of Penngrove. 427 Comment
  UC194498  Ericameria arborescens Edw. L. Greene 1888-9-1 Sonoma Petrified Forest Comment
  CAS-BOT-BC366902  Erigeron Greg de Nevers 1997-8-17 11078 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa Oak Hill Ranch 400 Comment
  CAS-BOT-BC293625  Erigeron biolettii Milo S. Baker 1948-7-27 12079 Sonoma Near summit of Hood Mt. 792 Comment
  JEPS35239  Erigeron biolettii W. L. Jepson 1933-8-1 16551 Sonoma very dry hills near Agua Caliente Comment
  RSA130887  Erigeron biolettii E. K. Balls 1958-7-21 23585 Sonoma Highway 12, 0.5 mile NE from junction with Hwy. 1 at Bridgehaven, along Russian River 30 Comment
Read comments
Jun 7 2019
  CAS-BOT-BC308832  Erigeron glaucus Marcus E. Jones 1882-7-17 3622 Sonoma Duncan's Mills Comment
  UC1557908  Erigeron glaucus J. Semple, S. Heard 1986-8-18 8545 Sonoma bluffs above Pebble Beach (CA-1, 10.1 km s of Mendocino Co. line); Pebble Beach Coastal Access, Pebble Beach Comment
  CAS-BOT-BC214551  Erigeron philadelphicus Peter Rubtzoff 1951-6-9 185 Sonoma Pitkin Marsh, near Forestville. Northern half of Lower Marsh Comment
  CAS-BOT-BC214552  Erigeron philadelphicus Peter Rubtzoff 1951-7-28 553 Sonoma Pitkin Marsh, near Forestville. Northern half of Lower Marsh Comment
  JEPS87223  Erigeron philadelphicus var. philadelphicus Jack and Betty Guggolz 1992-5-17 1302 Sonoma on the w side Black Mountain (e of Geyserville, Anderson Trail) 585 Comment
  CAS-BOT-BC300251  Erigeron reductus var. angustatus Roger Raiche 1985-6-30 50565 Sonoma Unnamed ridge on west side of Dry Creek Valley, north of Crane Creek, and south of Bradford Mt. Comment
  CAS-BOT-BC300252  Erigeron reductus var. angustatus Marian L. Campbell 1920-8-1 s.n. Sonoma Monte Rio Comment
  CAS-BOT-BC300304  Erigeron supplex Mary P. Wells 1984-6-8 338 Sonoma Site of North Fire station area. Near Milepost 55.44 on Hwy. 1. The Sea Ranch Comment
  JEPS128205  Eriodictyon californicum Roger Raiche 2000-4-30 055 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UC1124290  Eriodictyon californicum A. Lewis May 1932 123 Sonoma Calabasas Creek; Napa Quad., Calabasas Creek 457 Comment
  SEINET12329974  Eriodictyon californicum F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -191 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd 630 Comment
  RSA765541  Eriogonum cedrorum Roger Raiche 2010-7-11 36 .1 Sonoma The Cedars, headwaters of Big Austin Creek, Azalea Creek drainage 383 Comment
  UCD100328  Eriogonum latifolium Frederica Bowcutt 1984-6-24 472 Sonoma Sonoma Coast State Beaches. Duncan's Landing. 4 miles S of Jenner and the mouth of Russian River. Approx. 7 miles N of Bodega Head. 12 Comment
  UC6515  Eriogonum luteolum var. caninum Ivar Tidestrom 1895-6-14 Sonoma Petaluma Comment
  UC1032215  Eriogonum nudum var. auriculatum J. B. Spring 1932-6-26 87 Sonoma 2 mi ne Kenwood; Santa Rosa Quadrangle 548 Comment
  UCD100603  Eriogonum nudum var. nudum K. Esau 1932-8-28 s.n. Sonoma near Petrified Forest. Comment
  POM165167  Eriogonum nudum var. nudum A. A. Heller 1902-7-8 5814 Sonoma Between Healdsburg and Geyserville Comment
  UC6543  Eriogonum roseum Willis L. Jepson August, 1892 Sonoma Cloverdale Comment
  UC1520694  Eriogonum ternatum R. Raiche 1985-8-10 50716 Sonoma The Cedars, N of Cazadero, headwaters of Big Austin Creek, near Laton Mine site. 371 Comment
Read comments
Oct 15 2009
  SEINET11933965  Eriogonum ternatum Unknown 1984-1 40235 Sonoma The Cedars,N of Cazadero, headwaters of East Austin Creek, area called Red Slide 549 Comment
  SEINET6793133 Image available Eriogonum vimineum Sally Walker 1983-7-18 s.n. Sonoma 3 miles southwest of Occidental Comment
  CAS-BOT-BC262393  Eriogonum vimineum R. D. Stone 1983-6-16 552 Sonoma At the Little Geysers, upper Big Sulphur Creek drainage 701 Comment
  CAS-BOT-BC301147  Eriophyllum lanatum var. achilleoides Volney Rattan 1877-6-22 s.n. Sonoma Healdsburg Comment
  CAS-BOT-BC301155  Eriophyllum lanatum var. achilleoides Alice Eastwood 1915-6-5 4561 Sonoma Petrified Forest Comment
  UC494110  Eriophyllum lanatum var. achilleoides H. E. and S. T. Parks 1930-5-10 837 Sonoma Knights Valley Comment
  UC507060  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-5-20 E 26 Sonoma 1 mi n Healdsburg Comment
  CAS-BOT-BC301277  Eriophyllum lanatum var. arachnoideum Rimo Bacigalupi 1926-5-2 1403 Sonoma Cazadero Comment
  JEPS41003  Eriophyllum lanatum var. arachnoideum Lewis S. Rose 1963-6-3 64057 Sonoma n end Bodega Bay (coastal bluffs) Comment
  JEPS86743  Eriophyllum lanatum var. arachnoideum Jack and Betty Guggolz 1990-4-30 1040 Sonoma 4 mi w Occidental; Coleman Valley Road 304 Comment
  UC31668  Eriophyllum lanatum var. arachnoideum Harley P. Chandler 1900-5-25 655 Sonoma Bodega Comment
  UC31670  Eriophyllum lanatum var. arachnoideum Harley P. Chandler 1900-5-25 694 Sonoma Bodega Bay Comment
  UC632733  Eriophyllum lanatum var. arachnoideum H. L. Mason 1934-4-28 8096 Sonoma 4 mi w of Healdssburg (Jenson Ranch, at head of Dohrman Creek); Jensen Ranch Comment
  UC912251  Eriophyllum lanatum var. arachnoideum Herbert L. Mason 1934-4-28 8096 Sonoma Dohrman Creek Comment
  POM256520  Eriophyllum lanatum var. arachnoideum H. L. Mason 1934-4-28 8096 Sonoma Jansen Ranch, at head of Dohrman Creek, four miles west of Healdsburg Comment
  UCD132185  Eriophyllum lanatum var. arachnoideum Charles B. Heiser Jr. 1946-4-13 1721 Sonoma 2 miles east of Jenner. Comment
  UC472267  Eriophyllum staechadifolium Miss C. M. Hoak 1912-8-1 Sonoma Comment
  UCD131633  Eriophyllum staechadifolium Frederica Bowcutt 1984-6-23 432 Sonoma Salt Point State Park. Approx. 20 miles N of Jenner and 80 miles S of Fort Bragg. North of Gerstle Cove approx. 1/2 mile. 15 Comment
  RSA44517  Erodium brachycarpum L. S. Rose 1949-4-6 49025 Sonoma Western outskirts of Sonoma. 30 Comment
  CAS-BOT-BC520405  Eryngium aristulatum Ayzik Solomescsh 2009-5-14 s.n. Sonoma 2.3 km SE of cit of Sebastopol. Santa Rosa Plain, Cooper Site, pool 1. Elevation est. from Google Earth by label maker. 22 Comment
  CDA13482  Eryngium aristulatum G. F. Hrusa, Allen Buckman 1997-7-21 14010 Sonoma North Coast Biodiversity Arena; approx. 200 m. W of Hwy 128 in drainage of Blossom Creek, 2 km. NW of Tubbs Lane int. Sheet 1 of 2 Comment
  CDA40913  Eryngium aristulatum G. F. Hrusa, Allen Buckman 1997-7-21 14010 Sonoma North Coast Biodiversity Arena; approx. 200 m. W of Hwy 128 in drainage of Blossom Creek, 2 km. NW of Tubbs Lane int. Sheet 2 of 2 Comment
  UCD150144  Eryngium aristulatum Ayzik Solomeshch 2009-5-11 s.n. Sonoma Santa Rosa Plain. NW of City of Santa Rosa. Maggi Property located SW of the intersection of Fulton and River Rds. Sampling pool #1. 43 Comment
  UC1365625  Eryngium aristulatum var. aristulatum Peter Rubtzoff 1966-8-25 5805 Sonoma e. Graton (between Occidental and Guerneville rds, Laguna de Santa Rosa); Laguna de Santa Rosa Comment
  POM259280  Eryngium aristulatum var. aristulatum J. T. Howell 1933-8-27 11619 Sonoma Low lands bordering the San Pablo Bay southwest of Sonoma Comment
  UC20997  Eryngium armatum J. W. Congdon July 1888 Sonoma Petaluma Comment
  UC1126593  Erysimum capitatum E. Armstrong 1934-3-26 939 Sonoma 3 mi n Camp Meeker; Sebastopol Quadrangle 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
  CAS-BOT-BC402864  Eschscholzia caespitosa Catherine Best 1981-5-2 s.n. Sonoma Bohemian Hwy. 3 mi north of Occidental Comment
  RSA177941  Eschscholzia caespitosa subsp. caespitosa Robert F. Thorne 1965-4-20 34361 Sonoma On Cavedale Road, 0.5 miles up from State Hwy 12, ca. 4 miles N of Sonoma. 244 Comment
  CAS-BOT-BC403693  Eschscholzia californica Roxana S. Ferris; Laura Lorraine 1961-6-14 13525 Sonoma Junction of Bittner Rd. with Joy Rd., between Occidental and Bodega Comment
  CAS-BOT-BC403698  Eschscholzia californica Alice Eastwood 1921-4-24 10341 Sonoma Santa Rosa Comment
  CAS-BOT-BC403699  Eschscholzia californica Alice Eastwood 1899-6-9 s.n. Sonoma Bodega Point Comment
  CDA31281  Eschscholzia californica D. G. Kelch 2006-10-4 6 .497 Sonoma Entrance to Bouverie Reserve. 2 km N of Agua Caliente along Rte 12. Comment
  UC10024  Eschscholzia californica Ivar Tidestrom 1895-6-14 Sonoma Petaluma Comment
  CAS-BOT-BC403696  Eschscholzia californica F. G. Krauss 1894-5-1 s.n. Sonoma Mountains west of Calistoga Comment
  RSA33437  Eschscholzia californica subsp. californica E. K. Balls, Percy C. Everett 1953-10-9 18596 Sonoma South end of Doran Park, Bodega Bay, Hwy 1 3 Comment
  CAS-BOT-BC202541  Euphorbia Peter Rubtzoff 1987-10-17 9877 Sonoma Russian River ca. 6 miles east of Guerneville Comment
  CAS-BOT-BC294703  Euphorbia Peter Rubtzoff 1973-8-20 7227 Sonoma Sonoma Creek, near Agua Caliente Road crossing, west of Agua Caliente Comment
  RSA0002811  Euphorbia A. A. Heller 1902-7-2 5802 Sonoma Santa Rosa creek, east of Santa Rosa. Comment
  UC424848  Euphorbia crenulata Milo S. Baker 1927-4-12 3426 Sonoma w of Graton (near Wayne <????>g<?>on place) Comment
  CDA43444  Euphorbia exigua Peter Warner 2015-5-29 PDR# MVAP 06369508 Sonoma Sonoma Coast State Beach, Willow Creek portion. On the ridge between Willow and Freezeout Creeks. Comment
  SEINET11842305  Euryops pectinatus W. Knight, Knight, I.; Knight, T. 1984-1 5035 Sonoma Petaluma, K-Mart Comment
  CAS-BOT-BC354318  Euthamia occidentalis Peter Rubtzoff 1956-9-15 2915 Sonoma Atascadero Creek Marsh. Comment
  CAS-BOT-BC354319  Euthamia occidentalis Peter Rubtzoff 1956-9-15 2916 Sonoma Forestville Marsh. Comment
  CAS-BOT-BC278281  Festuca californica G. DeNevers 1982-4-18 1948 Sonoma Pepperwood Ranch. In W arm at Garrison Canyon Comment
  UCD65874  Festuca californica subsp. californica R. Tofsrud 1941-3-1 93 Sonoma Near Santa Rosa. Comment
  JEPS112968  Festuca idahoensis Dean W. Taylor 1994-5-4 14212 Sonoma ca. 2 mi SW of Occidental; at junction of Bittner Road and Joy Road, 249 Comment
  UCR255651  Festuca microstachys var. pauciflora Greg de Nevers 1997-4-24 10963 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, Santa Rosa 400 Comment
  UCD66122  Festuca occidentalis P. B. Kennedy 1915-5-28 Sonoma Del Mar. Comment
  UCR248743  Festuca octoflora Peter Rubtzoff 1976-6-5 8588 Sonoma North Coast Ranges, False Lake Meadow area, Annadel State Park 244 Comment
  UC1153832  Festuca subuliflora Beecher Crampton 1955-6-15 2961 Sonoma 2 mi e Fort Ross Comment
  CAS-BOT-BC353381  Filago Peter Rubtzoff 1971-6-23 6542 Sonoma Vernal pool, 4.25 miles west of Glen Ellen on Bennett Valley Road. Comment
  CAS-BOT-BC353382  Filago Peter Rubtzoff 1972-6-29 6801 Sonoma Laguna, Chileno Valley. Comment
  CAS-BOT-BC457574  Fragaria vesca subsp. californica Alice Eastwood 1915-6-5 4616 Sonoma Petrified Forest Comment
  CAS-BOT-BC130178  Fritillaria affinis D. E. Breedlove 1983-4-11 58687 Sonoma Pepperwood Ranch W of Knights Valley Comment
  UC1084349  Fritillaria affinis G. Thomas Robbins 1937-3-25 4 Sonoma Bennett Valley, Sonoma Creek Sonoma Creek; Bennett Valley, Sonoma Creek Comment
  UC583457  Fritillaria affinis Elmer I. Applegate 1934-3-25 8861 Sonoma Pine Flat region, west slope of the Mayacama Range. Comment
  UC843892  Fritillaria affinis Alice Eastwood 1918-5-1 6858 Sonoma Mount St. Helena Comment
  UCD151239  Fritillaria affinis James A. Neilson Jr. 1974-4-30 2728 Sonoma Mayacmas Mountains, upper Squaw Creek. (Elevation estimated using Google Earth by label maker.) 975 Comment
  CAS-BOT-BC130179  Fritillaria affinis Milo S. Baker 1940-3-1 s.n. Sonoma unspecified Comment
  RSA304276  Fritillaria affinis James R. Shevock 1971-3-21 813 Sonoma Sugarloaf State Park. 152 Comment
  JEPS83542  Fritillaria liliacea Jack and Betty Guggolz 1987-3-26 883 Sonoma about a half-mile se of the town of Camp Meeker (Acreage Lane); Acreage Lane Comment
  UCD121640  Galium aparine Frederica Bowcutt 1994-6-12 1851 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. Along Pony Gate Trail along east west trending stretch before entering oak woodland, out of view of kiosk and campground. 420 Comment
  UCD151302  Galium bolanderi James A. Neilson Jr. 1974-7-31 3165 Sonoma Mayacmas Mountains. Three-quarters of a mile south of Little Geysers. (Elevation estimated by label-maker using topo map.) 731 Comment
  LA208415  Galium californicum John Thomas Howell; 1930-6-8 5246 Sonoma 1 mi east of Bodega Bay Comment
  UC455883  Galium californicum subsp. californicum I. J. Condit 1908-8-13 Sonoma Guerneville Comment
  UCD161310  Galium divaricatum James A Neilson Jr.; Teresa A. Sholars 1976-5-10 3701 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
  SBBG29176  Galium divaricatum M. S. Baker 1947-5-12 11768 Sonoma SW slope of Hood Mt along horse trail from Gray Ranch 441 Comment
  JEPS52836  Galium muricatum Lauramay T. Dempster and G. L. Stebbins 1963-10-26 3945 Sonoma on Skaggs Springs rd 1/2 mi w Annapolis turn-off 50 Comment
  RSA264738  Galium parisiense Peter Rubtzoff 1970-8-25 6341 Sonoma Austin Creek beach. 0.5 miles N of Cazadero. Comment
  POM67597  Galium porrigens Marcus E. Jones 1882-7-18 s.n. Sonoma Duncan's Mills. Comment
  JEPS52971  Galium porrigens var. porrigens Lauramay T. Dempster and G. L. Stebbins 1963-8-12 3899 Sonoma 1/2 mi n Occidental (on road to Camp Meeker) Comment
  JEPS6613  Galium porrigens var. porrigens Willis L. Jepson 1894-7-19 Sonoma Mt. St. Helena Napa River Basin Comment
  UC480618  Galium porrigens var. porrigens Carl Meyer 1928-3-3 307 Sonoma Santa Rosa Comment
  UCD121907  Galium porrigens var. tenue Botany 102 Students 1993-5-8 268 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. In Adobe Canyon N of Sugarloaf Ridge. Bald Mountain Trail about 110 ft. above parking lot. About 1 air mile S of Red Mountain, N of Sonoma Creek. Comment
  UC201104  Galium tricornutum Katharine Brandegee Sonoma Santa Rosa Comment
  RSA94357  Galium trifidum Peter Rubtzoff 1951-6-30 315 Sonoma Western branch of the Upper Marsh. Comment
  CAS-BOT-BC304343  Gamochaeta pensylvanica Greg de Nevers 1993-5-30 10463 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Rd 457 Comment
  RSA28561  Gamochaeta ustulata Annetta Carter, Ethel Crum 1941-6-22 2148 Sonoma 3.3 miles E of Bay (Bodega Bay). Comment
  RSA790994  Gamochaeta ustulata Peter Rubtzoff 1962-6-19 4923 Sonoma Occidental Marsh. Comment
  CAS-BOT-BC199066  Garrya elliptica C. B. Wolf; E. R. Johnson 1934-10-13 6180 Sonoma 9 mi. N of Ft. Ross on Coast Rd. to Stewarts Pt. 45 Comment
  CAS-BOT-BC199068  Garrya elliptica Greg de Nevers 1987-7-10 8238 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CDA10948  Garrya elliptica G. F. Hrusa, G. L. Stebbins 1994-3-28 11706 Sonoma North Coast Biodiversity Arena; Fisk Mill Parking area, Salt Point State Park. 7 Comment
  CAS-BOT-BC182161  Garrya fremontii Walter Knight; Irja Knight 1963-12-27 465 Sonoma Summit, Pine Flat Rd. Comment
  CDA31016  Garrya fremontii D. G. Kelch, Troy McGregor 2010-8-22 10 .349 Sonoma Nr Peak of Geyser Peak Rd. 0 Comment
  CAS-BOT-BC182162  Garrya fremontii Walter Knight; Steve Edwards 1985-11-17 5184 Sonoma ridge northwest of summit of Kortum Canyon Road Comment
  SEINET12137327  Garrya fremontii W. Knight, Knight, I. 1981-1 3988 Sonoma 5.6 mi up Cavedale Rd at summit from jct of state route #12 Comment
  CAS-BOT-BC278691  Gastridium phleoides Peter Rubtzoff 1956-9-14 2866 Sonoma Vacation Beach, near Guerneville Comment
  CAS-BOT-BC278692  Gastridium phleoides Peter Rubtzoff 1952-6-3 1148 Sonoma South slopes of Fitch Mtn., near Healdsburg Comment
  CAS-BOT-BC278684  Gastridium phleoides G. DeNevers 1981-5-26 1329 Sonoma Pepperwood Ranch. Garrison Canyon Comment
  SBBG5536  Gaultheria shallon H. and M. Dearing 1939-5-15 3389 Sonoma N of Fort Ross Comment
  HSC14656  Genista monspessulana S. N. Wiemeyer 1962-4-20 18 Sonoma 0.75 mi. E of County Hospital along Chanate Rd. 122 Comment
  HSC14659  Genista monspessulana F. Demostene 1966-4-4 19 Sonoma 1 mi. W of Healdsburg Comment
  RSA28626  Gentiana affinis Annetta Carter, E. K. Crum 1941-6-22 1638 Sonoma 3.3 miles E of Bay (Bodega Bay). Comment
  CAS-BOT-BC257348  Geranium Peter Rubtzoff 1971-6-25 6564 Sonoma Intermittent lake off west side of Hwy. 1, 0.7 miles southeast of Salmon Creek crossing. Comment
  UC424819  Geranium dissectum Milo S. Baker 1930-4-15 3951 Sonoma Mouth of Salmon Creek Comment
  UCD103320  Geranium dissectum Frederica Bowcutt 1994-5-21 1825 b Sonoma Sugarloaf Ridge State Park. About 40 air miles N of San Francisco, 11 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood. Along Meadow trail about 3/4 mile from trailhead. East from trail about 100 yards. 396 Comment
  UC1130338  Geranium molle H. S. Yates 1934-4-21 3823 Sonoma near Duncan Mills; Duncan Mills Quad. 60 Comment
  UCD117655  Gilia capitata Roxana S. Ferris; Laura Lorraine 1961-6-15 13569 Sonoma about 0.125 mile beyond County Dump. Comment
  UCD158810  Gilia capitata James A. Neilson Jr. 1974-4-16 2872 Sonoma Mayacmas Mountains. Big Geysers. (Elevation estimated using topo map by label maker.) 548 Comment
  CAS-BOT-BC361360  Gilia capitata Greg de Nevers 1997-4-16 10937 Sonoma Cavedale Road Area burned Sept. 1996 152 Comment
  CAS-BOT-BC225284  Gilia capitata subsp. chamissonis A. A. Heller; H. E. Brown 1902-5-27 5616 Sonoma Bodega Bay Comment
  RSA178597  Gilia capitata subsp. chamissonis Roxana S. Ferris 1932-5-27 8259 Sonoma Upper Bodega Bay Comment
  UCD117702  Gilia capitata subsp. chamissonis Ann F. Johnson 1979-7-2 s.n. Sonoma Bodega Dunes State Park. Comment
  POM179726  Gilia capitata subsp. tomentosa J. T. Howell 1930-6-8 5365 Sonoma 1 mile east of Bodega Bay Comment
  UC931984  Gilia capitata subsp. tomentosa Verne and Alva Grant 1948-7-7 8599 Sonoma on Highway 1 Ocean Bluff 3.7 mi s Fort Ross; s of Fort Ross Comment
  CAS-BOT-BC225468  Gilia millefoliata Alice Eastwood 1901-7-4 s,.n. Sonoma Bodega Point Comment
  UCD160144  Gilia tricolor James A. Neilson Jr. 1974-4-16 2871 Sonoma Mayacmas Mountains. Sulphur bank number 13. (Elevation estimated using Google Earth by label maker.) 487 Comment
  UCD15040  Gilia tricolor James Aronson 1977-4-15 14 Sonoma California, Sonoma Co.; 10.4 miles west of intersection with Dutcher Creek Road, along Skaggs Springs Road; Comment
  UCD158813  Githopsis specularioides James A. Neilson Jr. 1974-4-16 3578 Sonoma Mayacmas Mountains. Big Geysers. (Elevation estimated using topo map by label maker.) 548 Comment
  UC894568  Glebionis segetum Lewis S. Rose 1938-9-11 38251 Sonoma Bloomfield 30 Comment
  CDA2164  Glyceria declinata Farm Adv. 1969-5-22 Sonoma Mill Station Road, Sebastopol. 0 Comment
  UCR25306  Glyceria elata John C. Roos 1955-7-2 6643 Sonoma MIller Ridge. Comment
  UCD66790  Glyceria occidentalis Robert F. Thorne 1965-4-19 34293 Sonoma Near county dump on Stoetz Road off of Harrison Grade ca. 2 miles NNE of Occidental. 182 Comment
  CAS-BOT-BC164700  Gnaphalium Peter Rubtzoff 1966-8-29 5815 Sonoma Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC166688  Gnaphalium Peter Rubtzoff 1965-10-17 s.n. Sonoma Russian River Bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC166689  Gnaphalium Peter Rubtzoff 1965-11-9 s.n. Sonoma Russian River Bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC166683  Gnaphalium chilense Peter Rubtzoff 1951-8-26 685 Sonoma Along road from East Guernewood to Vacation Beach. Comment
  CAS-BOT-BC176132  Gnaphalium palustre Peter Rubtzoff 1955-8-27 2098 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC164671  Gnaphalium purpureum Peter Rubtzoff 1952-6-10 1221 Sonoma Northeast slopes of Fitch Mountain near Healdsburg. Comment
  UC429316  Goodyera oblongifolia Franklin P. Nutting Sonoma Taylor Creek; Western Middle California, Taylor Creek Comment
  JEPS4240  Gratiola ebracteata W. L. Jepson 1921-5-6 9193 Sonoma Sonoma Valley 30 Comment
  UCR242983  Gratiola ebracteata Ayzik Solomeshch 2009-5-12 s.n. Sonoma Along Bennett Valley Road, between Santa Rosa and Glen Ellen 189 Comment
  RSA800342  Gratiola ebracteata Peter Rubtzoff 1961-7-22 4664 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC164093  Grindelia Peter Rubtzoff 1963-6-6 5171 Sonoma Laguna de Santa Rosa, E of Graton. Comment
  CAS-BOT-BC164096  Grindelia Peter Rubtzoff 1971-6-10 6533 Sonoma Laguna de Santa Rosa E of Graton, between Occidental and Guerneville Roads. Comment
  UCD158823  Grindelia James A. Neilson Jr.; Teresa A. Sholars 1974-12-28 2896 Sonoma northwest corner of Section 14, The Geysers. (Elevation estimated by label maker using Google Earth.) 472 Comment
  SEINET3840884  Grindelia acutifolia G. F. Hrusa, M. Gillogly 2000-7-26 15674 Sonoma Dry bed of Leslie Creek, .25 miles above confluence with Mark West Creek, USGS Quadrangle: Mark West Springs 7.5 150 Comment
  CAS-BOT-BC305197  Grindelia hirsutula John Thomas Howell 1929-6-30 4318 Sonoma 4 miles from Petrified Forest on road to Knights Valley Comment
  POM58296  Grindelia hirsutula Michener, Bioletti 1893-06 s.n. Sonoma Glen Ellen Comment
  UC32138  Grindelia hirsutula F. T. Bioletti 1891-1 Sonoma Glen Ellen Comment
  SEINET3142907  Grindelia hirsutula M. P. Dunford 1959-10-3 559 Sonoma 1.8 mi. NE of Mark West Springs on Mark West Road Comment
  UCD160836  Grindelia nana James A. Neilson Jr.; Teresa A. Sholars 1975-6-20 3371 a Sonoma Section 10, the Geysers. (Exact location unknown. Elevation and coordinates estimated by label maker.) 388 Comment
  UCR37762  Grindelia stricta A. C. Sanders 1985-1-19 5373 Sonoma Bodega Bay, coastal bluffs behind Lucas Wharf, along the highway 15 Comment
  CAS-BOT-BC371464  Habenaria Greg de Nevers 1989-9-10 9103 Sonoma Field redacted by CAS, contact the data manager for more information 400 Comment
  UCD85146  Hainardia cylindrica Beecher Crampton 1957-7-11 4337 Sonoma just south of Portugese Beach, in Sonoma Coast State Park, about 2.5 miles north of Salmon Creek, along State Hwy. 1. Comment
  JEPS15040  Helenium puberulum unknown 1877-6-14 Sonoma Guerneville Comment
  UCD158776  Helenium puberulum James A. Neilson Jr. 1974-7-10 3172 a Sonoma Mayacmas Mountains, 1/4 mi. south of Geyser Rock area. (Elevation estimated by label maker using Google Earth.) 1027 Comment
  CAS-BOT-BC309587  Helenium puberulum A. A. Heller 1902-7-1 5795 Sonoma At Sebastopol Comment
  POM187816  Helenium puberulum Marcus E. Jones 1931-7-5 29103 Sonoma Cloverdale Comment
  CAS-BOT-BC314720  Helianthella californica var. californica C. F. Leitholt 1893-6-1 s.n. Sonoma Bennet Valley 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
  CAS-BOT-BC268127  Hemizonia Peter Rubtzoff 1962-10-9 5115 Sonoma Lower Salmon Creek Marsh. Comment
  UCD166266  Hemizonia Peter Rubtzoff 1970-9-3 6379 Sonoma Marsh off west side of Hwy. 1, 0.7 miles southeast of Salmon Creek. Comment
  UCR244620  Hemizonia Peter Rubtzoff 1969-8-28 6164 Sonoma Vernal pool area, 6.5 mi northeast of Penngrove on Lichau Road 427 Comment
  CAS-BOT-BC268068  Hemizonia Peter Rubtzoff 1971-9-30 6710 Sonoma Laguna, Chileno Valley. Comment
  CAS-BOT-BC268069  Hemizonia Peter Rubtzoff 1955-9-9 2121 Sonoma Bodega Head Marsh. Comment
  UCD164541  Hemizonia Peter Rubtzoff 1975-8-15 8323 Sonoma Laguna, Chileno Valley. Comment
  RSA608263  Hemizonia congesta J. T. Howell, J. W. Stacey 1936-7-26 12672 Sonoma Pitkin Marsh, 5 miles north of Sebastopol. Comment
  CAS-BOT-BC306245  Hemizonia congesta subsp. congesta James I. McMurphy 1909-5-28 s.n. Sonoma 2 miles south of Fulton Comment
  SEINET7096780  Hemizonia congesta subsp. congesta A. G. Vestal 1955-5-7 s.n. Sonoma Facendini Lane. Ca. 1 mile east of Occidental. NAD27, 38.4070? deg. , -122.9289?_ (converted to WGS84) UTM Zone 10, 506210mE, 4250769mN. Comment
  UC1612985  Hemizonia congesta subsp. congesta M. Rockwood and L. Esposito 1994-6-14 541 Sonoma ca 1.5 mi nw Bodega; Rancho Bodega 42 Comment
  CAS-BOT-BC309697  Hemizonia congesta subsp. lutescens James I. McMurphy 1909-8-8 701 b Sonoma Leddy Station between Santa Rosa and Sebastopol Comment
  JEPS86755  Hemizonia congesta subsp. lutescens Jack and Betty Guggolz 1990-4-30 1038 Sonoma n side intersection of Occidental Road and Facindini Lane Comment
  UC990618  Hemizonia congesta subsp. lutescens James I. McMurphy 1909-8-9 713 Sonoma Petaluma Comment
  CAS-BOT-BC309717  Hemizonia congesta subsp. lutescens John Thomas Howell 1930-7-27 5409 Sonoma 8 miles south of Fort Ross Comment
  UC990587  Hemizonia congesta subsp. lutescens James I. McMurphy 1910-6-8 Sonoma e; where road enters hills Comment
  CAS-BOT-BC309946  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1964-8-26 64064 Sonoma 6.5 miles ne. of Penngrove 426 Comment
  CAS-BOT-BC309949  Hemizonia congesta subsp. luzulifolia Joseph P. Tracy 1930-9-1 9173 Sonoma North Coast Ranges. Knight's Valley Comment
  JEPS41000  Hemizonia congesta subsp. luzulifolia Lewis S. Rose 1964-8-26 64064 Sonoma 6.5 mi ne Penngrove 426 Comment
  SBBG32325  Hemizonia congesta subsp. luzulifolia L. S. Rose 1964-8-26 Sonoma 6.5 mi NE of Penngrove 426 Comment
  CAS-BOT-BC309943  Hemizonia congesta subsp. luzulifolia H. M. Hall 1924-8-13 12098 Sonoma East side of Russian River between Ukiah and Hopland Comment
  CAS-BOT-BC309948  Hemizonia congesta subsp. luzulifolia R. F. Hoover 1966-8-23 9918 Sonoma Mark West Creek, on Santa Rosa-Calistoga road near junction of St. Helena Road Comment
  RSA159434  Hemizonia lutescens James I. McMurphy 1909-8-8 701 -C Sonoma Leddy Station between Santa Rosa and Sebastopol. Comment
  RSA503982  Hemizonia lutescens B. G. Baldwin 1986-10-29 645 Sonoma 0.3 mile S of junction with California State Hwy 116 along Lakeville Road. Comment
  UC581116  Hesperevax sparsiflora var. sparsiflora H. L. Mason 1934-4-28 8082 Sonoma Jensen's Ranch; Dohrmann Creek Comment
  CAS-BOT-BC310215  Hesperevax sparsiflora var. sparsiflora D. E. Breedlove 1976-3-27 39443 Sonoma Along Dry Creek Road about 3 miles past Warm Springs Road Comment
  OBI7229  Hesperocyparis sargentii H. E. McMinn 1936-4-5 4405 Sonoma 2 mi N of Occidental Comment
  JEPS18146  Hesperolinon micranthum Rimo Bacigalupi with G. T. Robbins and F. Hoffmann 1956-5-30 5669 Sonoma vicinity of The Cedars (near Layton Chromite Mine); headwaters of Big Austin Creek 266 Comment
  UC1212244  Hesperolinon micranthum Freed W. Hoffman 1947-5-18 773 Sonoma near Camp Meeker; Inner North Coast Ranges, Dutch Bill Creek Comment
  UCD110539  Hesperolinon micranthum Roxana S. Ferris; Laura Lorraine 1961-6-15 13560 Sonoma Harrison Grade, 1.3 mi. from junction with Green Valley Road. Comment
  JEPS32295  Hesperolinon spergulinum W. L. Jepson 1923-6-28 10008 Sonoma Kenwood Sonoma Canyon 365 Comment
  JEPS82315  Hesperolinon spergulinum Roger Raiche 1983-6-19 30411 Sonoma The Cedars; slopes of Red Slide Creek 243 Comment
  UCD110532  Hesperolinon spergulinum Helen K. Sharsmith 1952-7-23 4168 Sonoma 1.1 mile northeast of Skagg's Springs. 106 Comment
  UCD95454  Hesperomecon linearis P. G. Connors 1992-5-14 256 Sonoma Bodega Marine Laboratory. On north slope of old dune. Comment
  RSA0045175  Heterotheca oregona Greg de Nevers 1996-10-20 10890 Sonoma Pepperwood Ranch Natural Reserve. 3450 Franz Valley Road. 91 Comment
  UC858024  Heuchera micrantha var. erubescens Eliz. Parsons Hauver June 1915 Sonoma Skaggs Springs Comment
  CAS-BOT-BC424435  Heuchera pilosissima Catherine Best 1985-5-15 1091 Sonoma Coleman Valley Road about 3 miles W of Occidental Comment
  RSA0063008  Heuchera pilosissima Ella Dales Cantelow 1938-5-7 2402 Sonoma 4.5 miles W of Bodega. Comment
  SEINET12216892  Heuchera pilosissima W. Knight, Knight, I. 1984-1 5292 Sonoma Gualala Pt. State Park Comment
  JEPS78858  Hieracium albiflorum Edward Lee 1936-6-8 2219 Sonoma Bohemian Grove; grounds near entrance Comment
  SEINET9362826  Hieracium albiflorum Unknown 1995-6-8 2825 Sonoma 7 mi NW of Calistoga. Madrone-Douglas Fir-Quercus-Rhus assoc. Rdside rubble Botany 102, Botany Department, University of California, Davis. Comment
  UC1056243  Holcus lanatus Virginia E. Long 1930-9-13 6 a Sonoma about 10 mi n Cloverdale Comment
Read comments
Aug 15 2010
  UC38610  Holcus lanatus J. Burtt Davy 1896-7-24 Sonoma below Duncan's Mills; below Duncan's Mills Comment
  UC573681  Holcus lanatus H. S. Yates 1936-5-16 5595 Sonoma 2 mi se Forestville (<Pitkin Marsh>); Sebastopol Quad. Comment
  UC573682  Holcus lanatus H. S. Yates 1937-5-30 6538 Sonoma 1 1/2 mi nne Graton; Sebastopol Quadrangle Comment
  CAS-BOT-BC320403  Holocarpha virgata Milo S. Baker 1945-7-17 11106 Sonoma Field S of Guerneville Hiwy about 6 mi from Santa Rosa Comment
  JEPS83481  Holodiscus discolor R. D. Stone 1985-5-29 672 Sonoma Cobb Mt.; ; upper Cobb Creek drainage ca. 1.1 mi. SW of Cobb Mt. summit 1066 Comment
  JEPS120286  Holodiscus dumosus var. cedrorum Barbara Ertter with R. Raiche, J. Shevock, R. Bittman, et al. 1994-6-23 12850 Sonoma The Cedars serpentine area at head of Big Austin Creek N of Cazadero, ca 20 airmiles due W of Healdsburg, along south side of creek Comment
  UCR244743  Holozonia filipes Peter Rubtzoff 1971-7-9 6601 Sonoma 4.25 miles west of Glen Ellen on Bennett Valley Road 244 Comment
  POM53174  Holozonia filipes A. A. Heller 1902-7-1 5800 Sonoma Lagoon at Sebastopol Comment
  UCD85402  Hordeum brachyantherum David L. Morgan 1956-5-13 s.n. Sonoma On Watmaugh Road, 1/2 mile W of junction of Arnold Drive. Comment
  UC1011009  Hordeum brachyantherum subsp. brachyantherum Virginia Bufford 1936-5-1 169 Sonoma Larkspur Rock, Bodega Canyon Comment
  SEINET10892631  Hordeum marinum subsp. gussoneanum A. Arthur Heller 1902-6-4 Heller 5636 Sonoma Santa Rosa. Comment
  SEINET10595770  Hordeum murinum A. Arthur Heller 1902-4-11 Heller 5278 Sonoma Bodega Bay in sand. Comment
  RSA128787  Hordeum murinum subsp. glaucum P. H. Raven 1950-4-6 1561 Sonoma Cotati to Santa Rosa. 30 Comment
  CAS-BOT-BC282024  Hordeum murinum subsp. leporinum A. A. Heller 1902-4-11 5278 Sonoma Bodega Bay Comment
  CDA36853  Hordeum murinum subsp. leporinum CDFA Staff s.n. Sonoma Sugarloaf Ridge State Park; near junction of Meadow, Hillside, and Gray Pine Trails, east of bridge across Sonoma Creek. 0 Comment
  HSC10197  Hordeum murinum subsp. leporinum S. N. Wiemeyer 1962-1-29 7 Sonoma 3/4 mi. E of County Hospital along Chanate Rd. 122 Comment
  CAS-BOT-BC282020  Hordeum murinum subsp. leporinum Mary P. Wells 1981-8-2 s.n. Sonoma Between North Recreation Center and Leeward Rd, the Sea Ranch Comment
  UC1011010  Hordeum vulgare Virginia Bufford 1935-4-23 22 Sonoma back of barn (Santa Rosa); Santa Rosa Comment
  JEPS44586  Horkelia californica Miss C. M. Hoak 1912-8-1 Sonoma Monte Rio Comment
  CAS-BOT-BC536155  Horkelia californica David D. Keck 1944-7-11 5516 Sonoma 1 mile south of bridge across mouth of Russian River, 1/2 mile from ocean 22 Comment
  UCD106071  Hosackia crassifolia R. H. Neuns 1950-5-8 109 Sonoma Nine miles west of Cloverdale. Comment
  SBBG119671  Hosackia gracilis G. F. Pratt, C. Pierce 2003-5-15 Sonoma Salt Point State Park 30 Comment
  CAS-BOT-BC540825  Hypericum Peter Rubtzoff 1969-7-21 6115 Sonoma Guerneville Marsh, Pocket Canyon area. Comment
  CAS-BOT-BC401003  Hypericum anagalloides Walter Knight; Irja Knight 1963-9-1 135 Sonoma Marsh near highest summit of Harold Smith Ranch on Pine Mt Rd NE of Cloverdale 731 Comment
  CDA36540  Hypericum anagalloides T. C. Fuller 1958-5-24 3990 Sonoma Pitkin Marsh, near Forestville. 0 Comment
  SEINET3157293  Hypericum anagalloides W. E. Baymont Sonoma Healdsburg Comment
  UCD110355  Hypericum concinnum Frederica Bowcutt 1994-6-24 1884 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. 396 Comment
  UC479392  Hypochaeris glabra Marcus E. Jones 1931-7-5 29093 Sonoma w Cloverdale Comment
  CAS-BOT-BC316681  Hypochaeris glabra A. A. Heller 1902-6-7 5661 Sonoma Bennett Valley southeast of Santa Rosa Comment
  CAS-BOT-BC316682  Hypochaeris glabra John H. Thomas 1976-6-15 18319 Sonoma Southern end of Sea Ranch northeastern part of county about 7 miles south of Gualala 30 Comment
  UCD133363  Hypochaeris glabra Gerry North 1993-4 26 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 first pullout on right after Pony Gate Gulch Creek by hig rock. 304 Comment
  CAS-BOT-BC316710  Hypochaeris radicata Greg de Nevers 1981-5-23 1302 Sonoma Top of Devils Kitchen Hill, Pepperwood Ranch Comment
  UC725311  Iris douglasiana A. A. Heller 1940-5-10 15605 Sonoma e of Stewart Point (near the Gualala River crossing) Comment
  UCD138705  Iris douglasiana J. J. Dunning 1963-5-12 s.n. Sonoma beside Coleman Valley Road (between State Highway 1 and Occidental), ca. 2-3 miles east of State Highway 1. Comment
  UCD138714  Iris douglasiana Nicholas Foulder 1982-5-22 49 Sonoma 2 miles south Campmeeke on Highway 4 (Bohemian). Comment
  UCD138724  Iris fernaldii Frederica Bowcutt 1994-5-1 1761 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 Kenwood. Along Sonoma Creek just E of Bear Creek near bridge over Sonoma Creek. On Goodspeed trail about 30 yards from trail head. 198 Comment
  JEPS17338  Iris fernaldii W. L. Jepson 1893-4-25 Sonoma w of St. Helena (Caux's Knob); Hoods Peak Range, Caux's Knob Comment
  CAS-BOT-BC133677  Iris longipetala Peter Rubtzoff 1958-5-3 3625 Sonoma Atascadero Creek Marsh Comment
  RSA488797  Iris macrosiphon James L. Reveal 1988-6-1 6975 Sonoma Along Geysers Road, 13.2 mile north of California Highway 128 and 14.8 miles east of U.S. Highway 101, 0.8 mile south of the turnoff to Geysers Resort, about 16.5 miles east of Cloverdale 640 Comment
  CAS-BOT-BC176124  Isoetes Peter Rubtzoff 1971-9-1 6670 Sonoma Spring Creek Reservoir area. Comment
  RSA784489  Isoetes Peter Rubtzoff 1969-5-24 6053 Sonoma 6.5 miles SE of Penngrove, on Lichan Road. 427 Comment
  CAS-BOT-BC376227  Isoetes howellii Greg de Nevers 1992-6-16 10163 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. In Weimar Pond 304 Comment
  UC810503  Isoetes howellii John Thomas Howell 1937-6-6 13015 Sonoma Sebastopol Comment
  RSA114299  Isolepis carinata J. T. Howell 1957-6-13 32620 Sonoma Pitkin Marsh. Comment
  HSC85561  Isolepis cernua Robert A. Norris, John L. Inase, Allen Nakagawa, Willie J. Roberts, Michael Kurtz, Nelson R. Powers 1982-8-8 4434 Sonoma Near Goat Rock picnic area across mouth of Russian River from Jenner, Sonoma State Beach Comment
  SEINET2064756 Image available Juglans californica Royal D. Suttkus 1967-6-25 67 -281 Sonoma Russian River, 1 mile E of Alexander Comment
  UCD141323  Juncus balticus subsp. ater Frederica Bowcutt 1997-7-18 2182 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. Just south of midpoint between Mt. Hood and Red Mountain. Road on ridge west of Bear Creek. 365 Comment
  CAS-BOT-BC164383  Juncus balticus subsp. ater Peter Rubtzoff 1970-5-16 6225 Sonoma Sonoma: Five miles north of Sears Point Comment
  CAS-BOT-BC164386  Juncus balticus subsp. ater Peter Rubtzoff 1971-7-23 6606 Sonoma Sonoma: Laguna, Chileno Valley Comment
  SEINET3877389  Juncus bolanderi Kaye H. Thorne 1984-11-21 3657 Sonoma Sea Ranch, 2.5 mi S Gualala, stabilized coast dunes old sheep ranch.; 0 Comment
  UC1026489  Juncus bufonius Peter Rubtzoff 1951-6-7 125 Sonoma near Forestville (uppermost part of the w branch of the Upper Marsh); Pitkin Marsh Comment
  UCD141497  Juncus effusus P. B. Kennedy 1914-10-1 s.n. Sonoma Del Mar Ranch. Comment
  CAS-BOT-BC164041  Juncus effusus subsp. pacificus Peter Rubtzoff 1973-9-9 7324 Sonoma Sonoma: Kenwood Marsh Comment
  CAS-BOT-BC164050  Juncus effusus subsp. pacificus Peter Rubtzoff 1971-9-3 6693 Sonoma Sonoma: At edge of springy area along southeastern border of Spring Creek Reservoir Comment
  UCR249081  Juncus lescurii Peter Rubtzoff 1961-8-6 4676 Sonoma Americans Creek, 0.5 mi. east of Valley Ford 5 Comment
  RSA0019005  Juncus lescurii Peter Rubtzoff 1954-8-9 1665 Sonoma Bodega Head Marsh. Comment
  RSA368303  Juncus oxymeris Christopher Davidson 1977-6-17 5882 Sonoma State Highway 12 ca. 3 miles west of Guerneville, along Russian River 15 Comment
  UC1026490  Juncus patens Peter Rubtzoff 1951-7-21 518 Sonoma s of Upper Marsh (near Forestville); Pitkin Marsh Comment
  SD30906  Juncus patens Edith A. Purer 1932-7-24 4069 Sonoma From Bodega Bay to Santa Rosa, in canyon. Comment
  RSA94072  Juncus phaeocephalus var. phaeocephalus J. T. Howell 1947-6-26 23300 Sonoma Cunningham Marsh. Comment
  UCD158736  Juncus tenuis James A. Neilson Jr. 1974-7-25 3049 Sonoma Mayacmas Mountains. One-half mile south of Little Geysers. 792 Comment
  CAS-BOT-BC341707  Lagophylla ramosissima John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary P. Wells 1981-5-14 53963 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles northeast of Penngrove on the west slope of Sonoma Mountain 457 Comment
  CAS-BOT-BC341709  Lagophylla ramosissima James I. McMurphy 1909-5-28 s.n. Sonoma 1 mile west of Santa Rosa Comment
  CDA2224  Lamarckia aurea Gordon Leppig 1998-5-6 1344 Sonoma Austin Creek State Recreation Area, Austin Creek Trail. Comment
  CAS-BOT-BC173572  Lamiaceae Peter Rubtzoff 1958-9-1 3964 Sonoma Guerneville region, Vacation Beach, near Guerneville. Russian River. Comment
  CAS-BOT-BC490425  Lamiaceae Peter Rubtzoff 1971-6-25 6566 Sonoma Intermittent lake off W side of Hwy 1, 0.7 mi SE of Salmon Creek crossing Comment
  JEPS83498  Lasthenia burkei Jack and Betty Guggolz 1986-5-7 866 Sonoma Carinalli property; pastureland near the far w end Comment
  UCR267442  Lasthenia burkei Ayzik Solomeshch 2009-5-11 s.n. Sonoma Northwest of the city of Santa Rosa, south of River Rd. and west of Fulton Rd., just north of Wood Rd. Sampling pool # 4 45 Comment
  JEPS86321  Lasthenia burkei Jack and Betty Guggolz 1988-4-14 914 Sonoma Comment
  RSA784684  Lasthenia burkei Mark Elvin 1997-5-7 399 Sonoma Near SE corner of Sonoma Co airport adjacent to main runway. 11 Comment
  UCSC007221  Lasthenia burkei Randall Morgan 2003-1 Sonoma Comment
  RSA585970  Lasthenia californica Adree M. Desrochers 1988-4-30 335 Sonoma Salt Point State Park, Stump Beach. Comment
  CAS-BOT-BC324933  Lasthenia californica subsp. bakeri Milo S. Baker 1938-5-14 s.n. Sonoma Larkspur Rock east of Bay Comment
  UC2061429  Lasthenia californica subsp. californica Rachael L. Olliff Yang 2017-5-3 21 Sonoma Pepperwood Preserve, about 500 m northwest of Three Tree Hill. Comment
  UCD33659  Lasthenia californica subsp. macrantha Beecher Crampton 1971-6-6 8720 Sonoma Carmet, Sonoma Coast State Park. Comment
  CAS-BOT-BC355524  Lasthenia glaberrima Peter Rubtzoff 1958-5-10 3654 Sonoma Laguna de Santa Rosa north of Cunningham (near Todd Road) Comment
  UC90040  Lasthenia glaberrima Katharine Brandegee 1905-6-8 Sonoma between Santa Rosa Sevastopol Comment
  CAS-BOT-BC355531  Lasthenia glaberrima Peter Rubtzoff 1966-5-7 5712 Sonoma Todd Road, 1.4 mi. from Hwy. 116 and 0.6 mi. from Llado Rd. Comment
  CAS-BOT-BC355532  Lasthenia glaberrima Peter Rubtzoff 1969-5-24 6054 Sonoma 6.5 mi. NE of Penngrove, on Lichan Road 426 Comment
  RSA276853  Lasthenia glaberrima Peter Rubtzoff 1958-5-10 3654 Sonoma Laguna de Santa Rosa N of Cunningham (near Todd Road) Comment
  HSC100946  Lasthenia gracilis Peter Warner 2011-3-26 182 Sonoma Annadel State Park, ~50 m E upslope from Live Oak Trail, ~200 m N of junction with Rough Go Trail. 229 Comment
  POM361574  Lasthenia macrantha subsp. macrantha J. T. Howell 1931-4-18 6425 Sonoma 8 miles N of Bay Comment
  CAS-BOT-BC370853  Lasthenia minor John Thomas Howell 1931-4-18 6420 Sonoma mouth of Salmon Creek, 2 miles n. of Bay Comment
  CAS-BOT-BC370900  Lasthenia minor Peter Rubtzoff 1960-5-18 4385 Sonoma Bodega Head Marsh. Comment
  UC353930  Lasthenia minor Milo S. Baker 1928-4-14 2984 Sonoma 1.5 mi n of Bay Comment
  CAS-BOT-BC370856  Lasthenia minor A. A. Heller 1938-5-14 15080 Sonoma on the bluff overlooking the sea just north of bay, Bodega Bay Comment
  CAS-BOT-BC370890  Lasthenia minor Roxana S. Ferris 1932-5-27 8256 Sonoma northern end of Bodega Bay Comment
  RSA783476  Lathyrus Peter Rubtzoff 1974-4-17 7363 Sonoma Upper Green Valley Marsh area Comment
  CAS-BOT-BC164389  Lathyrus Peter Rubtzoff 1972-5-25 6769 Sonoma Laguna, Chileno Valley Comment
  CAS-BOT-BC164395  Lathyrus Peter Rubtzoff 1971-9-1 6672 Sonoma Spring Creek Reservoir area east of Santa Rosa. Comment
  CAS-BOT-BC204994  Lathyrus jepsonii var. californicus Alice Eastwood; John Thomas Howell 1938-5-15 5506 Sonoma Near Mark West Springs Comment
  CDA13132  Lathyrus latifolius G. F. Hrusa, R. Gross 1996-6-3 13067 Sonoma North Coast Biodiversity Arena; Vicinity of old homestead on summit of Mayacmas Range, 2 m. SW of Calistoga, at top of Diamond Mtn. Rd. Comment
  UCR255730  Lathyrus sphaericus Greg de Nevers 1993-4-26 10404 Sonoma North Coast Range, Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  HSC79028  Lathyrus vestitus A. C. Sanders 1985-1-19 5372 Sonoma Bodega Bay, coastal bluffs behind Lucas Wharf, along the highway 15 Comment
  UC864425  Lathyrus vestitus var. alefeldii Marcus E. Jones, A. M. 1882-7-17 3576 Sonoma Duncan's Mills 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
  CAS-BOT-BC323228  Layia chrysanthemoides David D. Keck 1931-4-2 997 Sonoma Boyes Springs. 30 Comment
  CAS-BOT-BC323229  Layia chrysanthemoides David D. Keck 1931-4-1 992 Sonoma 2 miles N of Sears Point (9 miles S of Sonoma), southern Sonoma County. 10 Comment
  CAS-BOT-BC323235  Layia chrysanthemoides H. M. Hall 1931-5-26 13081 Sonoma El Verano. Comment
  RSA785927  Layia chrysanthemoides Peter Rubtzoff 1969-6-15 6085 Sonoma Laguna de Santa Rosa, about 1 mile ESE of Sebastopol. Comment
  CAS-BOT-BC379624  Layia platyglossa Alice Eastwood 1915-6-29 4836 Sonoma Bodega Point Comment
  JEPS82234  Layia platyglossa Roger Raiche 1983-7-5 30486 Sonoma Horseshoe Pt Comment
  SEINET7067227  Layia platyglossa A. G. Vestal 1947-5-12 s.n. Sonoma Stinson Beach [presently Stenson Beach State Park]. Coordinate datum: NAD27. UTM Zone 10, 531872mE, 4193954mN. Comment
  UC57867  Layia platyglossa A. A. Heller 1903-4-23 6608 Sonoma Fort Ross Comment
  CAS-BOT-BC379576  Layia platyglossa John Thomas Howell 1976-6-15 18261 Sonoma Southern end of Sea Ranch, northwestern part of county, about 7 miles outh of Gualala 30 Comment
  CAS-BOT-BC379578  Layia platyglossa unspecified 1932-5-3 5717 Sonoma Stewarts Point Comment
  CAS-BOT-BC329304  Layia septentrionalis H. E. Brown; A. A. Heller 1902-5-29 5622 Sonoma Mt. Hood Comment
  UC572646  Ledum glandulosum G. Thomas Robbins 1937-5-23 203 Sonoma Vine Hill Region, Pitkin Marsh Pitkin Marsh; Vine Hill Region, Pitkin Marsh Comment
  UC770650  Ledum glandulosum R. H. Neuns 1948-8-30 26 Sonoma 2 1/2 mi se of Gualala 182 Comment
  CAS-BOT-BC274359  Leersia oryzoides Freed Hoffman 1943-10-26 s.n. Sonoma Russian River, near Guerneville Comment
  CAS-BOT-BC274358  Leersia oryzoides John Thomas Howell 1946-8-17 22880 Sonoma The Laguna just east of Sebastopol Comment
  CAS-BOT-BC210094  Lemna Peter Rubtzoff 1965-10-10 5653 Sonoma Stony Point Marsh. Comment
  UC971684  Lemna gibba Leo Koch 1940-6-12 1011 Sonoma 3 mi n of Santa Rosa (behind Fountaingrove Vineyard along Highway 101) Comment
  CAS-BOT-BC154134  Lemna gibba Peter Rubtzoff 1965-11-9 5666 Sonoma Stony Point Marsh. Comment
  CAS-BOT-BC344881  Lemna minor Peter Rubtzoff 1962-8-24 5067 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC344900  Lemna minor Peter Rubtzoff 1955-7-10 1958 Sonoma Duncans Mills Marsh. Comment
  UCR255528  Lemna minor Peter Rubtzoff 1958-7-19 3781 Sonoma Laguna de Santa Rosa, east of Sebastopol 21 Comment
  RSA0065910  Lemna minor Peter Rubtzoff 1954-8-13 1710 Sonoma Bodega Head Marsh. Comment
  CAS-BOT-BC527280  Lemna minuta Peter Rubtzoff 1951-7-8 385 Sonoma Lower part of Upper Marsh, Pitkin Marsh near Forestville 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-BC89151  Lepidium didymum Katharine Brandegee 1905-6-1 s.n. Sonoma Bodega. Comment
  UCD115354  Lepidium didymum G. P. McNear 1924-8-1 s.n. Sonoma Petaluma. Comment
  CHSC57358  Lepidium nitidum Shelly A. Kirn 1991-3-28 2 Sonoma Ca. 50 yds e of Hwy 101, 0.5 mi n of Cloverdale. 97 Comment
  SEINET6915965  Lepidium nitidum A. G. Vestal, W. P. Vestal 1962-4-11 s.n. Sonoma Serpentine area 1 mile east of Occidental. Comment
  RSA262194  Leptochloa fusca subsp. fascicularis Peter Rubtzoff 1970-7-17 6284 Sonoma 5 miles north of Sears Point. Comment
  JEPS117075  Leptosiphon androsaceus Peter Warner 2010-5-6 144 Sonoma Annadel State Park, in grassland along Canyon Trail, ~750 m W of junction with Marsh Trail, ~950 m W of dam at Lake Ilsanjo Comment
  CAS-BOT-BC226700  Leptosiphon jepsonii G. DeNevers 1981-4-8 664 Sonoma Pepperwood Ranch. Pippindale Farm. Hansel's cow pasture, at trail over her driveway Comment
  UCR261617  Leptosiphon latisectus Ann Howald 2003-3-8 2274 Sonoma Inner North Coast Ranges, Mayacamas Mountains, Sugarloaf Ridge State Park, McCormick Addition, c. 0.1 mile east of intersection of Headwaters Trail and Grandmother Oaks Trail 450 Comment
  JEPS128322  Leptosiphon parviflorus Roger Raiche 2000-3-26 012 .00 Sonoma The Cedars. Lower Russian, Big Austin Creek watershed. Comment
  JEPS126509  Lessingia arachnoidea Staci Markos, Jack and Betty Guggolz and Gene Cooley 2001-9-24 210 Sonoma North of Camp Meeker near the Bohemian Highway, Bohemian Ranch, Amaryllis Flat. Comment
  CAS-BOT-BC342011  Lessingia ramulosa John Thomas Howell 1926-11-14 2250 Sonoma Hills south-east of Santa Rosa 83 Comment
  CAS-BOT-BC273566  Leymus californicus G. DeNevers 1981-7-1 1731 Sonoma Pepperwood Ranch. In the Pippindale Garden Comment
  SEINET11763375  Lilaea scilloides Michener, Bioletti 1892-1 s.n. Sonoma Shellville Comment
  CAS-BOT-BC130694  Lilium occidentale Peter Rubtzoff 1951-7-28 567 Sonoma Lower part of the Upper Marsh Comment
  CAS-BOT-BC130831  Lilium pardalinum Peter Rubtzoff 1955-7-24 1991 Sonoma Guerneville Marsh Comment
  CAS-BOT-BC130832  Lilium pardalinum Peter Rubtzoff 1955-7-24 1991 Sonoma Guerneville Marsh Comment
  UCD116502  Limnanthes douglasii Lewis S. Rose 1965-4-4 65020 Sonoma Sonoma County. 24 Comment
  UCD116509  Limnanthes douglasii W. L. Jepson 1914-4-11 5804 Sonoma Sonoma Valley. 35 Comment
  POM137451  Limnanthes douglasii subsp. douglasii A. A. Heller, H. E. Brown 1902-4-16 s.n. Sonoma Fields east of Santa Rosa Comment
  RSA178016  Limnanthes douglasii subsp. douglasii Robert F. Thorne 1965-4-19 34274 a Sonoma Titus Ranch, Valley Ford. 18 Comment
  RSA264714  Limnanthes douglasii subsp. douglasii Peter Rubtzoff 1971-5-8 6442 Sonoma Eastern foothills of Sonoma Mts. on Sobre Vista Road 0.9 mi west of Arnold Drive. Comment
  CAS-BOT-BC123078  Limnanthes vinculans Peter Rubtzoff 1966-4-30 5699 Sonoma Todd Rd., 1.4 mi from Hwy 116 and 0.6 mi. from Llano Rd. Comment
  CAS-BOT-BC45942  Limnanthes vinculans Mrs. A. E. Alexander 1946-4-23 s.n Sonoma Between Bodega and Petaluma Comment
  JEPS86816  Limnanthes vinculans Jack and Betty Guggolz 1991-5-14 1136 Sonoma s Lone Pine Road (w of Hwy 116) 27 Comment
  RSA215944  Limnanthes vinculans Peter Rubtzoff 1966-5-29 5726 Sonoma Laguna de Santa Rosa area east of Cunningham (near Llano Road) Comment
  UC1330359  Limnanthes vinculans Peter Rubtzoff 1966-4-30 5699 Sonoma Todd Road 1.4 mi from Hwy 116 (0.6 mi from Llano Road); ; Todd Road, near Llano Road, Sonoma Co. Comment
  RSA0004098  Limnanthes vinculans Peter Rubtzoff 1966-4-30 5699 Sonoma Todd Road 1.4 miles from Hwy. 116 and 0.6 mile from Llano Road. Comment
  UC106674  Linanthus androsaceus Katharine Brandegee 1905-6-25 Sonoma Bodega Bay Comment
  UC73620  Linanthus dichotomus Milo S. Baker Apr 1898 687 Sonoma Santa Rosa Creek Canyon Comment
  UC879936  Linanthus dichotomus Alice Eastwood 1922-5-4 11273 Sonoma Mt. St. Helena Comment
  JEPS23256  Linaria vulgaris G. Thomas Robbins 1958-8-11 3924 Sonoma w of the town of Bodega (along Estero Lane a dirt road about 2 mi s of State Highway 1); Estero Lane Comment
  UCD110565  Linum bienne Chris Bowen 1974-6-1 141 Sonoma Near Pacific Reach, Unit 24, Sea Ranch, near State Highway 1. Comment
  JEPS117116  Linum trigynum Peter Warner 2010-6-16 167 Sonoma Jenner Headlands, Knoll Field, 203 m S 244 deg. W of residence house Comment
  UC1076091  Lithocarpus densiflorus Herbert L. Mason 1928-4-8 4296 Sonoma 2 mi n Ft. Ross (coast) Comment
  CAS-BOT-BC430800  Lithophragma affine Alice Eastwood 1921-4-24 10374 Sonoma Santa Rosa Comment
  UC11884  Lithophragma affine Alice King Apr. 1897 Sonoma Healdsburg Comment
  CAS-BOT-BC430585  Lithophragma affine G. DeNevers 1981-4-11 697 Sonoma Pepperwood Ranch Comment
  CAS-BOT-BC430797  Lithophragma affine Mrs. Clara Hunt 1921-4-1 s.n. Sonoma St. Helena Comment
  CAS-BOT-BC435671  Lithophragma heterophyllum G. DeNevers 1981-3-25 560 Sonoma In a big road cut on Franz Valley Road below Walter Wards house. Comment
  CAS-BOT-BC435672  Lithophragma heterophyllum G. DeNevers 1981-3-14 548 Sonoma Pippindale farm, 7 mi. NE of Santa Rosa, near Mark West lodge. In the 1st E fork of the N fork, up the canyon where we planted Pinus ponderosa Comment
  UC581119  Logfia filaginoides H. L. Mason 1934-4-28 8092 Sonoma Jensen's Ranch Dohrmann Creek Comment
  UCD167964  Logfia filaginoides James Neilson 1977-6-12 3919 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
  UC1093862  Logfia gallica Herbert L. Mason 1947-5-4 13210 Sonoma near Kenwood; Hood Mountain Comment
  CAS-BOT-BC283296  Lolium multiflorum Mary P. Wells 1987-9-7 895 Sonoma Spring Lake Park Comment
  CAS-BOT-BC283285  Lolium multiflorum John H. Thomas 1976-6-16 18344 Sonoma S part of Sea Ranch, NW part of county, about 7 miles S of Gualala 30 Comment
  CAS-BOT-BC283293  Lolium multiflorum David L. Morgan 1961-5-17 s.n. Sonoma Watkins Ranch, 0.25 mile NW of Penngrove Comment
  UC1011013  Lolium temulentum Virginia Bufford 1936-5-19 269 Sonoma 2 or 3 mi from Santa Rosa (Bennett Valley); Bennett Valley Comment
  UCD66664  Lolium temulentum Collector Unknown 1941-4-1 Sonoma Sebastopol Hwy. Comment
  UCD167355  Lomatium californicum James Neilson 1981-5-28 4036 Sonoma Mayacmas Mountains. The Geysers. Vicinity of PG and E lookout. (Exact location unknown. Coordinates estimated by label maker.) Comment
  RSA452563  Lomatium californicum Christopher Davidson 1977-6-20 6021 Sonoma Dry Creek Rd., 9.3 miles W of Geyserville. 91 Comment
  SEINET8465350 Image available Lomatium californicum F. Almeda, G. DeNevers 1981-4-28 4907 Sonoma Approximately 5 mi from main gate to Pepperwood Ranch Natural Preserve just off Franz Valley Rd. Comment
  SEINET12118785  Lomatium dasycarpum Unknown 1953-1 3448 Sonoma Mark West road, 1 mi SW of Petrified Forest Comment
  CAS-BOT-BC217813  Lomatium repostum John Thomas Howell 1966-6-2 41551 Sonoma In hills E. of Aqua Caliente Comment
  UC1076677  Lomatium utriculatum C. Ritchie Bell 1952-3-19 1247 Sonoma top of Larksur Rock Bodega; , Larkspur Rock Comment
  JEPS12837  Lonicera hispidula var. vacillans M. E. and E. Van E. Ferguson Jun 8 1919-Jun 10 1919 Sonoma near Guerneville; Russian River Comment
  UCD137392  Lonicera involucrata P. B. Kennedy 1915-5-31 s.n. Sonoma Del Mar. Comment
  CAS-BOT-BC244000  Lonicera involucrata var. ledebourii Saichi Kawahara 1969-3-31 542 Sonoma 50 yards west of Jenner Comment
  JEPS77875  Lonicera involucrata var. ledebourii Robert M. Lloyd 1965-5-8 3638 Sonoma about 4 mi n Route 116 (Llano Road, upper portion of marsh, e of Cunningham, se of Sebastopol); Laguna de Santa Rosa Marsh Comment
  CAS-BOT-BC243995  Lonicera involucrata var. ledebourii Mary P. Wells 1982-8-24 s.n. Sonoma Salt Point State Park Comment
  SEINET12327831  Lonicera ledebourii F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -148 Sonoma Bridgehaven, near junction of Willow Creek Road & CA 1 along Russian River 37 Comment
  CAS-BOT-BC200972  Lotus Peter Rubtzoff 1983-8-28 9681 Sonoma Austin Creek ca. 0.5 mile north of Hwy 116 on Cazadero Road 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-BC294706  Lotus Peter Rubtzoff 1971-5-8 6452 Sonoma Intermittent lake off west side of Highway 1, 0.7 miles southeast of Salmon Creek crossing. Comment
  RSA0020334  Lotus Peter Rubtzoff 1971-5-8 6452 Sonoma Intermittent lake off W side of Hwy 1. 0.7 miles SE of Salmon Creek Crossing. Comment
  UCD106720  Lotus corniculatus Mary M. Hektner; Sue Dakuzaku 1974-6-4 21 A Sonoma Roadside of Pacific Reach, across from Kirkwood home, Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  IRVC28976  Lotus formosissimus G. F. Pratt, C. Pierce 2003-5-15 s.n. Sonoma Salt Point State Park North Coast 30 Comment
  UC15582  Lotus formosissimus Harley P. Chandler 1900-5-25 674 Sonoma Bodega Comment
  UCR126258  Lotus formosissimus G. F. Pratt 2003-3-28 s.n. Sonoma North Coast, Salt Point State Park, north end of park 25 Comment
  SEINET7075495  Lotus humistratus A. G. Vestal 1955-5-8 s.n. Sonoma Valley of the Moon south of Kenwood. 38? deg. 23' 26" North Latitude, -122? deg. 31' 35" West Longitude. UTM Zone 10, 541365mE, 4249039mN. (NAD 27). [Coordinate Datum: WGS84/NAD83]. Comment
  SEINET12165156  Lotus humistratus W. Knight, Knight, I.; DrEdwards, S. 1986-1 5353 Sonoma Geyser Peak - access from Healdsbrug-Geysers Rd 853 Comment
  UC424867  Lotus stipularis var. stipularis Milo S. Baker Jun 1929 3573 c Sonoma near Vine Hill School House Comment
  UC907562  Lotus tenuis Freed Hoffman 1948-8-12 Sonoma headwaters of Warm Springs Creek Warm Springs Creek 533 Comment
  UC58312  Lotus wrangelianus A. A. Heller 1903-4-25 6597 Sonoma Fort Ross Comment
  UCR255053  Lotus wrangelianus Greg de Nevers 1992-5-2 10138 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 305 Comment
  CAS-BOT-BC478123  Ludwigia Peter Rubtzoff 1987-9-27 9853 Sonoma Russian River at Forest Hills, 6 miles east of Guerneville Comment
  UC1191759  Ludwigia palustris Herbert L. Mason 1946-7-4 12886 Sonoma Pitkin Marsh between Santa Rosa and Forestville; Pitkin Marsh Comment
  UCR244609  Ludwigia palustris Peter Rubtzoff 1969-8-24 6149 Sonoma Pond on River Road, 3 miles west of Fulton 27 Comment
  UCR244610  Ludwigia palustris Peter Rubtzoff 1966-6-26 5763 Sonoma Laguna de Santa Rosa, east of Graton, between Occidental and Guerneville roads 23 Comment
  CAS-BOT-BC157972  Ludwigia peploides Peter Rubtzoff 1958-7-26 3807 Sonoma Laguna de Santa Rosa, east of Sebastopol 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-BC201297  Lupinus Charles Piper Smith 1947-6-19 47533 Sonoma Highway 1, Jenner, 1 mile south Comment
  CAS-BOT-BC195973  Lupinus albifrons var. albifrons Milo S. Baker 1934-1-1 9481 Sonoma Cunningham Marsh Comment
  CAS-BOT-BC195976  Lupinus albifrons var. albifrons Charles Piper Smith 1948-4-27 48164 Sonoma Junction Melitta-Mark West-Petrified Forest roads. Petrified Forest, junction Comment
  CAS-BOT-BC195978  Lupinus albifrons var. albifrons Charles Piper Smith 1908-4-3 1392 Sonoma Forestville, 3 miles west Comment
  CAS-BOT-BC195979  Lupinus albifrons var. albifrons Alice Eastwood 1893-4-27 s.n. Sonoma Hood Mt. Comment
  UCD106015  Lupinus albifrons var. albifrons Frederica Bowcutt 1996-5-24 2158 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-BC196463  Lupinus arboreus Mary P. Wells 1985-4-13 471 Sonoma Above Highway #1. North of the Russian Gulch bridge Comment
  CHSC63910  Lupinus arboreus John Hale 1990-4-10 14 Sonoma 305 m. NW of Ocean Grove. 6 Comment
  UCD106630  Lupinus arboreus P. B. Kennedy 1915-5-28 14 Sonoma Del Mar. Comment
  UC15932  Lupinus bicolor W. H. Brewer 1862-4-17 982 Sonoma Sonoma Valley Comment
  SEINET12165191  Lupinus bicolor F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -178 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd 485 Comment
  CAS-BOT-BC8409  Lupinus bicolor var. tridentatus Alice Eastwood 1921-4-24 10369 Sonoma Santa Rosa Comment
  SEINET10838181  Lupinus densiflorus Joseph W. Congdon 1880-5-30 Congdon s.n. Sonoma Petaluma. Comment
  POM186932  Lupinus densiflorus var. aureus Marcus E. Jones 1931-7-5 28954 Sonoma The Geysers. Comment
  SEINET10485254  Lupinus densiflorus var. palustris Joseph W. Congdon 1880-6-6 Congdon s.n. Sonoma Comment
  SEINET12165200  Lupinus densiflorus var. palustris F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -224 Sonoma Valley Ford, junction of CA 1 & Valley Ford-Freestone highway, along Ebabias Creek 30 Comment
  POM11292  Lupinus latifolius subsp. latifolius Philip A. Munz 1922-6-27 5846 Sonoma Santa Rosa, Santa Rosa Mountains. Comment
  UC73199  Lupinus latifolius var. latifolius Miss M. Alice King April, 1897 Sonoma near Healdsburg; near Healdsburg Comment
  UC726340  Lupinus microcarpus var. microcarpus A. A. Heller 1938-5-14 15091 Sonoma near Two Rocks; near Two Rocks Comment
  SD64433  Lupinus microcarpus var. microcarpus Darley F. Howe 1966-6-2 Sonoma 5 miles south of Bodega Bay Comment
  POM276264  Lupinus nanus subsp. nanus Lyman D. Benson 1935-3-31 6403 Sonoma U.S. 101, S. of Cloverdale. 244 Comment
  SEINET10451627  Lupinus nanus subsp. nanus Melvin L. Conrad, David B. Dunn; Douglas G. LeDoux 1973-6-9 Conrad 7083 Sonoma On n-facing grassy clay bank, .6 mi w of sonoma-napa co line on hwy 121. 61 Comment
  RSA51315  Lupinus polycarpus Peter H. Raven 1950-4-6 1560 Sonoma Cotati to Santa Rosa. 30 Comment
  UCD109522  Lupinus sericatus Roger Raiche 1984-3-25 RR 40074 Sonoma Kelly Road just west of its intersection with Rockpile Road. 609 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
  SEINET12170293  Lupinus tracyi F. H. Utech 1995-3-26 95 50 a Sonoma WNW of Lake Sonoma, junction Kelly Road & Rockpile Road Comment
  RSA22011  Lupinus variicolor Alice Eastwood, John T. Howell 1939-4-2 7362 A Sonoma Larkspur Rock Comment
  UCD148314  Luzula Peter Rubtzoff 1951-9-3 741 Sonoma Vacation Beach, near Guerneville along Russian River. Comment
  UCD166732  Luzula Peter Rubtzoff 1958-5-17 3680 Sonoma Laguna de Santa Rosa, east of Cunningham (near Llano Road). Comment
  CAS-BOT-BC441294  Luzula macrantha D. E. Breedlove 1983-4-11 58685 Sonoma Pepperwood Ranch, W of Knights Valley Comment
  CAS-BOT-BC441402  Luzula macrantha A. A. Heller; H. E. Brown 1902-3-26 5156 Sonoma Santa Rosa Creek Comment
  JEPS128351  Luzula parviflora Roger Raiche 2000-4-15 037 .00 Sonoma The Cedars. Azalea Creek, The Blob area, Beargrass Gulch. Lower Russian River, Big Austin Creek watershed. Comment
  RSA0015985  Lythrum hyssopifolia Edward Palmer 1892-6-27 2399 Sonoma Petaluma. Comment
  RSA0015994  Lythrum hyssopifolia Peter Rubtzoff 1958-7-19 3775 Sonoma Laguna de Santa Rosa, east of Sebastopol. Comment
  RSA0016000  Lythrum hyssopifolia Milo S. Baker 1951-07 12321 Sonoma Yard of Ada Hunkins near Kenwood. Comment
  SEINET12194751  Lythrum hyssopifolia W. Knight, Knight, I.; Knight, T. 1985-1 5145 Sonoma in Knight's garden, Petaluma Comment
  UCD165253  Madia Peter Rubtzoff; Nancy Harrison 1974-7-13 7669 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC342620  Madia anomala G. DeNevers 1981-5-5 960 Sonoma Pepperwood Ranch. On the bench S of the Studio Comment
  CAS-BOT-BC344045  Madia elegans James I. McMurphy 1909-8-10 716 Sonoma West Santa Rosa Comment
  UC990649  Madia elegans James I. McMurphy 1909-8-10 716 Sonoma West Santa Rosa Comment
  JEPS12584  Madia elegans Eleanor Armstrong June 1932 509 Sonoma hill below St. Dorothy's (near Camp Meeker) 121 Comment
  CAS-BOT-BC343453  Madia gracilis John Thomas Howell 1937-7-4 13066 Sonoma Near Petrified Forest Comment
  CAS-BOT-BC343456  Madia gracilis John Thomas Howell; Catherine Best; Gordon H. True 1982-5-6 54684 Sonoma Bouverie Audubon Preserve, about 1.5 miles east of Glen Ellen near Stuart Creek 137 Comment
  CAS-BOT-BC343458  Madia gracilis A. A. Heller 1902-6-23 5738 Sonoma Petrified Forest Comment
  CAS-BOT-BC343459  Madia gracilis A. A. Heller 1902-6-23 5738 Sonoma Petrified Forest Comment
  UCD148434  Madia gracilis Peter Rubtzoff 1962-6-13 4894 Sonoma Freestone Marsh. Comment
  UCD160858  Madia gracilis James A. Neilson Jr.; Teresa A. Sholars 1975-6-27 3303 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
  UCR244755  Madia gracilis Peter Rubtzoff 1967-9-2 5876 Sonoma Freestone Marsh 79 Comment
  UCD132825  Madia gracilis Frederica Bowcutt 1994-5-21 1832 Sonoma Sugarloaf Ridge State Park. About 40 air miles N of San Francisco, 11 air miles E of Santa Rosa, 18 air miles NW of Napa, 1.5 air miles NE of Kenwood. Along the Hillside Trail 1/2 mile. 396 Comment
  POM56193  Madia gracilis subsp. gracilis A. A. Heller 1902-6-23 5738 Sonoma Petrified Forest Comment
  UCR222554  Madia madioides George K. Helmkamp, E. A. Helmkamp 2010-6-5 16244 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
  CAS-BOT-BC157678  Madia sativa Peter Rubtzoff 1962-8-24 5066 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC345227  Madia sativa A. A. Heller 1902-8-18 6050 Sonoma Santa Rosa Comment
  LA209925  Madia sativa O. H. Kappler; 1930-6-8 5264 Sonoma 1 mi. east of Bodega Bay Comment
  UCD132831  Madia sativa Frederica Bowcutt 1997-7-19 2199 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Franscio, 10 air miles E of Santa Rosa, 0.5 air miles SSE of Red Mountain, 0.1 air mile ENE of confluence of the Malm Fork and Sonora Creek. Along Meadow Trail E. of Gray Pine Trailhead and N. of Sonora Creek. Downstream of culvert under trail. 411 Comment
  CHSC26310  Maianthemum racemosum P. Kunst 1977-4-12 32 Sonoma 170 Comment
  CAS-BOT-BC511573  Maianthemum racemosum subsp. amplexicaule A. A. Heller; H. E. Brown 1902-4-11 s.n. Sonoma Bodega Bay Comment
  CAS-BOT-BC511489  Maianthemum stellatum Greg de Nevers 1993-4-6 10357 Sonoma Pepperwood Ranch Natural Preserve, 3450 Faranz Valley Road 304 Comment
  CHSC26309  Maianthemum stellatum P. Kunst 1977-4-12 31 Sonoma 170 Comment
  CAS-BOT-BC511488  Maianthemum stellatum F. G. Krauss 1894-5-1 s.n. Sonoma Mountains west of Calistoga Comment
  CAS-BOT-BC511495  Maianthemum stellatum H. E. Brown; A. A. Heller 1902-4-15 5297 Sonoma Santa Rosa Creek Comment
  SEINET7067226  Malacothrix californica A. G. Vestal 1947-5-12 s.n. Sonoma Stinson Beach [presently Stenson Beach State Park]. Coordinate datum: NAD27. UTM Zone 10, 531872mE, 4193954mN. Comment
  CAS-BOT-BC347362  Malacothrix floccifera A. T. Graff 1925-5-20 s.n. Sonoma Trospers, Cazadero Comment
  UC18749  Malva sylvestris J. Burtt Davy July, 1896 2964 Sonoma Russian River near Guerneville; Russian River Comment
  CAS-BOT-BC262962  Medicago Peter Rubtzoff 1973-8-29 7282 Sonoma Sonoma Creek bottom, near Agua Caliente Road crossing, west of Agua Caliente. Comment
  CAS-BOT-BC268063  Medicago Peter Rubtzoff 1973-8-21 7246 Sonoma Sonoma Creek bottom, near Agua Caliente Road crossing, west of Agua Caliente. Comment
  JEPS65517  Medicago polymorpha W. L. Jepson 1912-4-17 4768 Sonoma Sonoma Valley Comment
  CAS-BOT-BC269511  Melica californica G. DeNevers 1981-5-23 1264 Sonoma Pepperwood Ranch. At bottom of Franz Valley Road Comment
  CAS-BOT-BC269512  Melica californica G. DeNevers 1981-5-20 1219 Sonoma Pepperwood Ranch. On roadcut along Mark West Springs Rd. SW of Mark West Lodge, just before the road widens Comment
  CAS-BOT-BC281284  Melica geyeri John Thomas Howell; et al. 1981-5-14 53988 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles NE of Penngrove on the W slope of Sonoma Mountain 457 Comment
  UC1132259  Melica geyeri H. S. Yates 1937-6-6 6587 Sonoma hill between Freestone and Sebastopol Sebastopol 91 Comment
  UC933821  Melica geyeri Leo Koch 1940-4-22 830 Sonoma ca 0.5 mi from bridge over Little Sulphur Creek towards Mercuryville from the Geysers Mercuryville Comment
  UCD87362  Melica geyeri H. S. Yates 1937-5-30 6545 Sonoma 3 miles NW of Graton. 243 Comment
  UCD88610  Melica subulata B. Crampton 1955-6-17 2962 Sonoma 2 miles east of Fort Ross. Comment
  UCD88633  Melica subulata P. B. Kennedy 1919-5-16 s.n. Sonoma Del Mar. Comment
  CAS-BOT-BC262565  Melica torreyana A. A. Heller 1902-3-27 5160 Sonoma Western base of Mt. Hood Comment
  UC573649  Melica torreyana H. S. Yates 1937-5-30 6542 Sonoma 3 mi wnw Graton; Sebastopol Quad. 60 Comment
  UCD151184  Melica torreyana James A. Neilson Jr. 1974-4-17 3006 Sonoma Mayacmas Mountains. Big Geysers. (Elevation estimated using Google Earth by label maker.) 548 Comment
  CAS-BOT-BC164351  Melissa Peter Rubtzoff 1973-9-9 7317 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC164085  Mentha Peter Rubtzoff 1966-10-9 5831 Sonoma Brooks Gulch Marsh. Comment
  RSA784596  Mentha Peter Rubtzoff 1955-8-28 2113 Sonoma Guerneville region: Russian River. Vacation Beach, near Guerneville. Comment
  UCR244668  Mentha Peter Rubtzoff 1960-9-14 4553 Sonoma Laguna de Santa Rosa area northeast of Graton (near Laguna Road) 30 Comment
  CAS-BOT-BC164352  Mentha Peter Rubtzoff 1973-8-29 7281 Sonoma Sonoma Creek near Aqua Caliente Road crossing west of Aqua Caliente. Comment
  UCD163793  Mentha aquatica Peter Rubtzoff 1962-10-9 s.n. Sonoma Brooks Gulch Marsh. Comment
  CAS-BOT-BC164388  Mentha pulegium Peter Rubtzoff 1958-8-9 3830 Sonoma Laguna de Santa Rosa, N of Sebastopol (near Occidental Road). Comment
  UC126707  Mentha pulegium Geo. R. Hall 1906-10-14 Sonoma Guerneville; Bohemian Club Grove, etc. Comment
  CAS-BOT-BC164098  Mentha pulegium Peter Rubtzoff 1958-8-31 3950 Sonoma Atascadero Creek Marsh. Comment
  RSA33085  Mentha pulegium A. A. Heller 1923-7-12 s.n. Sonoma Windsor Comment
  UCD125170  Mentha pulegium Frederica Bowcutt 1995-11-7 2059 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. 0.5 air miles south of Red Mountain. In Sonoma Creek. Off of Bald Mountain Road near western trailhead for Vistra Trail. 548 Comment
  RSA784401  Mentha spicata Peter Rubtzoff 1953-11-1 1449 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC173571  Mentha spicata Peter Rubtzoff 1961-8-24 4696 Sonoma Fife Creek Marsh. Comment
  RSA785145  Mentha spicata Peter Rubtzoff 1973-9-9 7315 Sonoma Kenwood Marsh. Comment
  RSA54045  Micropus amphibolus J. T. Howell 1948-4-18 24203 Sonoma Hills east of Agua Caliente. Comment
  SEINET11806893  Micropus californicus var. californicus F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -090 Sonoma ca 4 mi NNW of Sonoma on Cavedale Road from junction with CA 12, ca 1.2 mi N on Cavedale Road 244 Comment
  CAS-BOT-BC322706  Microseris laciniata A. A. Heller 1902-6-2 5633 Sonoma Santa Rosa Comment
  CAS-BOT-BC322708  Microseris laciniata John Thomas Howell 1937-7-4 13081 Sonoma 4 miles west of Santa Rosa Comment
  CAS-BOT-BC322709  Microseris laciniata John Thomas Howell 1947-6-5 23242 Sonoma Near Wright School 4 miles west of Santa Rosa Comment
  RSA784490  Microseris laciniata subsp. laciniata Peter Rubtzoff, Nancy Harrison, Doug Jones 1974-6-8 7576 Sonoma Todd Road, 1.4 mi from Hwy 116 and 0.6 mi from Llano Road. Comment
  UC50059  Microseris laciniata subsp. laciniata F. T. Bioletti 1893-5 Sonoma Comment
  CAS-BOT-BC320518  Mimulus Peter Rubtzoff 1978-6-11 9215 Sonoma Cunningham Marsh area. On north side of Blucher Creek Valley. Comment
  CAS-BOT-BC320519  Mimulus Peter Rubtzoff 1974-5-26 7484 Sonoma Vernal pool area on Bennett Valley Road, 4.25 miles west of Glen Ellen. Comment
  RSA0025390  Mimulus Peter Rubtzoff 1962-6-19 4918 Sonoma Occidental Marsh. Comment
  UCD122173  Mimulus aurantiacus Collector Unknown Date Unknown s.n. Sonoma Sonoma County. Exact location unknown. Comment
  POM43747  Mimulus aurantiacus var. aurantiacus Marcus E. Jones 1924-4-25 s.n. Sonoma Cloverdale Comment
  CDA15996  Mimulus cardinalis G. F. Hrusa, M. Gillogly 2000-7-26 15676 Sonoma North Coast Biodiversity Arena; Dry bed of Leslie Creek, 1/4 mi. above confluence with Mark West Ck. Comment
  RSA535770  Mimulus congdonii David M. Thompson 1989-4-4 994 Sonoma Ca. 3 air mi E of Glen Ellen. 3.9 mi NE of Hwy 12 along Cavedale Road; W side of Road, 5 ft S of entrance to 3845-3850-3860 private driveway. 183 Comment
  RSA535826  Mimulus douglasii David M. Thompson 1988-4-2 864 Sonoma 1.1 mi N of Porter Creek Road along Franz Valley Road. 30 ft S of (and opposite) 900 Franz Valley Road residence gate. 305 Comment
  UCD122663  Mimulus grandis Mary M. Hektner 1975-8-14 226 -A Sonoma Unit 24 Owner's Map, Sea Ranch, near State Highway 1. Comment
  UCR248740  Mimulus guttatus Peter Rubtzoff 1970-6-21 6271 Sonoma North Coast Ranges, tributary of Mark West Creek, c. 3 mi west of Fulton 49 Comment
  UCR248872  Mimulus guttatus Peter Rubtzoff 1954-9-4 1729 Sonoma Bodega Head Marsh 2 Comment
  UCR248879  Mimulus guttatus Peter Rubtzoff 1964-7-29 5442 Sonoma Central Coast, Brooks Gulch Marsh 15 Comment
  UCR248895  Mimulus guttatus Peter Rubtzoff 1976-6-18 8656 Sonoma Kenwood Marsh 120 Comment
  POM5061  Mimulus guttatus A. A. Heller, H. E. Brown 1902-4-23 5349 Sonoma Near Sonoma. Comment
  SEINET12335261  Mimulus guttatus subsp. arvensis F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -251 Sonoma ca 10 mi from Warm Springs Dam enroute to Healdsburg & US 101 on Old Stewart Point-Skaggs Springs Rd 150 Comment
  JEPS27318  Mimulus inodorus Eleanor Armstrong 1932-5-23 497 Sonoma 3 mi w Graton 60 Comment
  UCD151179  Mimulus microphyllus James A. Neilson Jr. 1974-4-16 2874 Sonoma Mayacmas Mountains. Big Geysers. (Elevation estimated using Google Earth by label maker.) 548 Comment
  UCD122689  Mimulus microphyllus Janet McIntosh 1966-4-27 21 Sonoma 8 miles east of Petaluma, State Highway 116. 76 Comment
  UCD84291  Mimulus tricolor Ayzik Solomeshch 2009-5-12 s.n. Sonoma Along Bennett Valley Road (between Santa Rosa and Glen Ellen). 189 Comment
  CAS-BOT-BC174577  Minuartia californica John Thomas Howell 1948-4-18 24207 Sonoma Hills east of Agua Caliente Comment
  CDA11327  Minuartia californica G. F. Hrusa 1995-4-2 12037 Sonoma North Coast Biodiversity Arena; Franz Valley School Rd. approx. 1 mile NW of Napa/Sonoma county line. Comment
  UC8120  Minuartia douglasii Alice King May, 1897 Sonoma Healdsburg Comment
  UCD167967  Minuartia douglasii James Neilson 1977-6-12 3921 a 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-BC435113  Mollugo verticillata Peter Rubtzoff 1961-8-25 4714 Sonoma Forest Hills, east of Guerneville. Bottom of Russian River. Comment
  CAS-BOT-BC435116  Mollugo verticillata James McMurphy 1906-7-16 s.n. Sonoma Fulton Comment
  UCD125197  Monardella purpurea Walter Knight; Irja Knight, Roger Raiche, Steve Edwards Date Unknown 4756 Sonoma The Cedars; near Cazadero on Twitchell Ranch. Comment
  UCD125297  Monardella villosa Mary M. Hektner; Cathy Hendel 1974-6-28 84 Sonoma Unit 21 Owner's Map, Sea Ranch, near State Highway 1. Comment
  UC722653  Monardella villosa subsp. franciscana C. L. Hitchcock, J. S. Martin 1939-7-15 5446 Sonoma Cliffs below Bodega State Park Comment
  SEINET12324063  Monardella villosa subsp. neglecta W. Knight, Knight, I. 1982-1 4615 Sonoma 2.1mi from Camp Meeker toward Monte Rio on Bohemian Highway Comment
  CAS-BOT-BC314157  Monardella villosa subsp. subserrata Peter Rubtzoff 1952-6-3 1143 Sonoma South slopes of Fitch Mtn, near Healdsburg. Comment
  CHSC68008  Monardella villosa subsp. villosa James Jokerst 1985-5-29 2387 Sonoma Near Cobb Mountain. 1126 Comment
  UC32607  Monardella villosa subsp. villosa Alice King June, 1897 Sonoma Healdsburg Comment
  RSA518858  Monardella viridis Roger Raiche 1987-7-5 70380 Sonoma N of Cazadero, The Cedars, Big Austin Creek drainage, between Gravelly Springs and Red Slide Creek. 305 Comment
  SEINET12320782  Monardella viridis W. Knight, Knight, I. 1981-1 3958 Sonoma 2.3mi up Cavedale Road from State Hwy #12 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
  CAS-BOT-BC444985  Montia fontana J. Clausen 1933-3-25 731 Sonoma Between Warfield and Kenwood, along the highway Comment
  POM161366  Muilla maritima Rimo C. Bacigalupi 1252 Sonoma Opposite Myrtledale Geyser. 1.5 miles north of Calistoga. Comment
  UC903210  Myosotis discolor Ethel Crum 1940-5-26 2114 Sonoma Pitkin Marsh near Vine Hill; North Coast Ranges, Pitkin Marsh Comment
  RSA800151  Myriophyllum brasiliense Peter Rubtzoff 1963-7-6 5195 Sonoma Laguna de Santa Rosa area east of Cunningham. Comment
  RSA0060104  Myriophyllum hippuroides Greg de Nevers 1996-10-18 10889 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. In Biggest Double Pond. 91 Comment
  RSA0028934  Myriophyllum verticillatum Barbara Ertter 1988-11-5 8034 Sonoma Lake Sonoma 5 air miles due S of Cloverdale, point below Little Flat parking area W of bridge. 152 Comment
  CAS-BOT-BC456195  Najas guadalupensis Greg de Nevers 1996-10-18 10885 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. In Biggest Double Pond. 487 Comment
  RSA543177  Najas guadalupensis Peter G. Connors 1992-6-18 289 Sonoma Button Ranch (prospective Univ. Calif. Natural Reserve, pond #15 of Connor s numbering system). Between Walker Road and Roblar Road, 5 km north of Two Rock. 20 km from coast between Bodega Bay and Petaluma 122 Comment
  CAS-BOT-BC260073  Nassella lepida G. DeNevers 1981-5-30 1403 Sonoma Pepperwood Ranch. E slope of Horse Hill Comment
  CAS-BOT-BC260076  Nassella lepida G. DeNevers 1981-5-23 1292 Sonoma Pepperwood Ranch, Lower Pepperwood entrance Comment
  SEINET4559079  Nassella manicata M. Barkworth, D. Amme 1989-1 5170 Sonoma About 2 mi north of Jenner of US 1 Comment
  CAS-BOT-BC260282  Nassella pulchra G. DeNevers 1981-4-11 677 Sonoma Pepperwood Ranch. On S slope of 3 Tree Hill Comment
  CAS-BOT-BC260281  Nassella pulchra K. Wagnon 1939-5-4 187 Sonoma Downie's pasture, 5 miles W of Sebastopol, near O'Farrel Hill Comment
  CAS-BOT-BC366901  Navarretia Greg de Nevers 1997-8-17 11075 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa Oak Hill Ranch 400 Comment
  RSA0088471  Navarretia cotulifolia Ann Howald 2003-5-15 2334 A Sonoma Inner North Coast Ranges: Sonoma Mountains, south end, lower east slope, c. 0.2 mile southeast of intersection of Lewis Creek and Felder Creek. 151 Comment
  OBI36026  Navarretia heterodoxa John C. Roos 1950-7-22 4877 Sonoma 2 miles east of Duncan Mills 61 Comment
  JEPS70317  Navarretia heterodoxa Milo S. Baker 1928-6-16 3041 b Sonoma Hope Valley, n of Barber Ranch Hope Valley Comment
  UCR30586  Navarretia intertexta John C. Roos 1950-7-22 4876 Sonoma North Coast Range, 2 miles east of Duncan Mills 61 Comment
  CAS-BOT-BC230375  Navarretia leucocephala subsp. bakeri Niall McCarten; R. Bittman 1985-5-19 5491 Sonoma SE of junction of Highway 101 and Shiloh Road, N of Santa Rosa Comment
  CAS-BOT-BC233579  Navarretia prostrata Peter Rubtzoff; H. A. Froebe 1971-5-30 6491 Sonoma 4.25 miles W of Glen Ellen on Bennett Valley Road Comment
  HSC17152  Navarretia viscidula H. K. Sharsmith 1952-7-6 4178 Sonoma Stewart's Point Rd. 12.2 mi. W of Skagg's Springs 579 Comment
  UC1042316  Navarretia viscidula John Thomas Howell 1947-6-26 23318 Sonoma Cunningham Marsh Comment
  UC126415  Navarretia viscidula Prof. Heaton Jun 1887 Sonoma Verano Comment
  RSA94353  Navarretia viscidula Peter Rubtzoff 1951-7-21 523 Sonoma Pitkin Marsh near Forestville; dry ground bordering the Upper Marsh in the west Comment
  SD130512  Nemophila heterophylla F. Almeda, G. DeNevers 1981-3-30 4888 Sonoma Pepperwood Ranch; summit and east-facing slope of Three Tree Hill. Comment
  UCD120068  Nemophila heterophylla M. Wiesendanger 1927-5-5 736 Sonoma Kenwood Springs. Comment
  HSC13610  Nemophila menziesii James Faro 1962-4-18 13 Sonoma About 5 mi. N of Geurneville on the Old Cazadero Rd. Comment
  UCD120232  Nemophila menziesii R. W. Thorp 1967-3-9 670309 D Sonoma One mile southeast of Verona. Comment
  UC75665  Nemophila menziesii var. atomaria Miss Emma Lobenstein 1906-1 Sonoma Valley Ford Comment
  CAS-BOT-BC231193  Nemophila parviflora Roxana S. Ferris; Laura Lorraine 1961-6-14 13529 Sonoma Junction of Bittner Road with Joy Road between Occidental and Bodega Comment
  CAS-BOT-BC157971  Nicotiana Peter Rubtzoff 1974-8-3 7793 Sonoma Forest Hills, 5.5 miles east of Guerneville, along Russian River Comment
  RSA0060128  Nicotiana quadrivalvis Barbara Ertter 1988-11-5 8030 Sonoma Lake Sonoma ca 5 airmiles due S of Cloverdale, point below Little Flat parking area W of bridge. 152 Comment
  HSC8113  Notholithocarpus densiflorus var. densiflorus F. Demostene 1966-4-4 20 Sonoma 1 mi. W of Healdsburg Comment
  CAS-BOT-BC366855  Oemleria cerasiformis Greg de Nevers 1998-3-4 11138 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC368012  Orobanche californica subsp. jepsonii Greg de Nevers 1989-12-16 9123 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Top of High Hill. 400 Comment
  SD56755  Orobanche fasciculata Darley F. Howe 1963-7-2 Sonoma 4.2 miles north of junction with #12 on #1. Comment
  CAS-BOT-BC500335  Orobanche uniflora subsp. occidentalis J. W. Congdon 1880-4-13 s.n. Sonoma Petaluma Comment
  JEPS11691  Orobanche vallicola Bernard Lile 1933-10-1 Sonoma Russian R. bank near Cloverdale Comment
  SEINET13754683  Orthocarpus W. Roderick 1967-5-13 s. n. Sonoma N. of Steward's Pt. 15 Comment
  UC875255  Osmorhiza berteroi Lewis S. Rose 1940-5-6 40263 Sonoma Sonoma Creek Canyon 213 Comment
  POM139491  Oxalis oregana A. A. Heller, H. E. Brown 1902-3-22 5131 Sonoma Among Redwood Trees W of Sebastopol Comment
  SEINET9323534  Oxalis oregana John Nelson, Wnek, R. 2000-3-7 20947 Sonoma Sonoma County Comment
  UC1130245  Oxalis oregana E. Armstrong 1934-3-26 914 Sonoma 1 mi n Camp Meeker; Sebastopol quad 121 Comment
  UC17220  Oxalis oregana J. Burtt Davy 1896-3-13 1638 Sonoma Duncan's Mills Comment
  UCD110970  Oxalis oregana Donna Allen 1977-5-29 s.n. Sonoma dry creek roadside 5 miles from coast. Comment
  CAS-BOT-BC368045  Oxalis pes-caprae Greg de Nevers 1989-4-1 9053 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. At Strebel, section 26. 400 Comment
  JEPS117127  Oxalis pes-caprae Peter Warner 2010-3-29 123 Sonoma 1670 Bloomfield Road, approx. 3 km S of center Sebastopol, throughout property. Comment
  UC35989  Packera eurycephala var. eurycephala H. N. Bolander 1864-1 3963 Sonoma at the Geysers Geysers Comment
  UCD160904  Packera greenei James A. Neilson Jr.; Teresa A. Sholars 1975-6-26 3433 Sonoma Section 10, The Geysers, above Geysers Road. (Exact location unknown. Elevation and coordinates estimated by label maker.) 388 Comment
  CAS-BOT-BC254465  Panicum Peter Rubtzoff 1986-9-28 9749 Sonoma Russian River at Forest Hills, 5.5 miles E of Guerneville Comment
  RSA784566  Panicum Peter Rubtzoff 1968-9-21 5977 Sonoma Russian River bottom at Forest HIlls, 5.5 mi east of Guerneville. Comment
  UC1254542  Panicum acuminatum var. acuminatum R. Spellenberg 1964-6-15 402 Sonoma 17 mi e Geyserville; The Geysers, e of Geyserville Comment
  UC204227  Panicum acuminatum var. acuminatum Volney Rattan 1877-6-26 Sonoma Geysers Comment
  UC971699  Panicum acuminatum var. acuminatum Leo Koch 1940-4-22 825 Sonoma bare slopes around Sulphur Creek Geysers (e of Cloverdale); Inner North Coast Ranges, Sulfur Creek Geysers Comment
  UCD167112  Panicum acuminatum var. fasciculatum James Neilson 1975-7-8 3404 Sonoma Mayacmas Mountains. Socrates Mine. (Exact location unknown, coordinates estimated by label maker.) Comment
  UCD88706  Panicum acuminatum var. fasciculatum P. B. Kennedy 1915-5-31 21 Sonoma Annapolis region. Comment
  UCD32826  Panicum acuminatum var. thermale Beecher Crampton 1964-8-18 7139 d Sonoma North East part of county. The Geysers, 12 miles (in direct line) east of Cloverdale, ca. 1/2 mile east of Geyser Resort area, slope of steam well (locally called 'The Outlaw') or otherwise thermal no. 10 (Thermal Power co.). 493 Comment
  CHSC59824  Parentucellia viscosa Herb McLane 1980-4-21 5 Sonoma W of U. S. 101 and n 20 ft of Healsburg Ave. Comment
  SJSU5985  Parentucellia viscosa C. W. Sharsmith 1972-6-24 7806 Sonoma edge of Pitkin Marsh c. 1.5 mi SE of Forestville N of Sebastopol 48 Comment
  UC972197  Parvisedum pumilum Milo S. Baker 1952-4-20 12399 Sonoma ca 1/4 mi n of Caliente (e side of Highway 12); e side of Highway 12 Comment
  CAS-BOT-BC154989  Paspalum Peter Rubtzoff 1973-10-10 7342 Sonoma Tributary of Americano Creek, 2 mi. W of Bloomfield Comment
  UCD88962  Paspalum distichum Collector Unknown 1941-1 328 Sonoma E Street Bridge, Santa Rosa. Comment
  UC1071574  Paxistima myrsinites E. Armstrong 1934-3-26 905 Sonoma 1 mi. w. Camp Meeker; Sebastopol Quad. 182 Comment
  CAS-BOT-BC202868  Paxistima myrsinites Roger Raiche 1985-11-29 RR 50901 Sonoma West of Cloverdale along Skunk Creek on Cherry Creek Road 2-4 mi w. of its origin at US-101 228 Comment
  CAS-BOT-BC202870  Paxistima myrsinites W. Knight; I. Knight; Dr. Steve Edwards 1986-6-8 5452 Sonoma Cherry Creek Road, W of Cloverdale Comment
  UC25019  Pectocarya penicillata H. N. Bolander 1864-1 3858 Sonoma Russian River Bed Comment
  HSC24667  Pedicularis densiflora F. Demostene 1966-4-1 5 Sonoma 2 mi. E of Healdsburg Comment
  SEINET12183371  Pelargonium X domesticum W. Knight, Knight, I.; Knight, T. 1984-1 5034 Sonoma Petaluma, purchased at K-Mart 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
  SEINET5501471 Image available Penstemon heterophyllus Sally Walker 1981-6-8 s.n. Sonoma E side of Mt St Helena 610 Comment
  CAS-BOT-BC327999  Pentachaeta alsinoides Alice Eastwood; John Thomas Howell 1938-5-15 5507 Sonoma Near Mark West Springs Comment
  RSA0059039  Pentagramma triangularis Robert F. Thorne 1965-4-19 34298 a Sonoma W of Stoetz Road off of Harrison Grade, ca. 2 miles NNE of Occidental. 183 Comment
  UCD137755  Pentagramma triangularis Ivette Loredo-Prendeville; Nicole Canon 1993-4-24 58 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. Sonoma and Bear Creek confluence. Comment
  CAS-BOT-BC71727  Pentagramma triangularis subsp. triangularis Walter Knight; Irja Knight 1963-12-27 457 Sonoma Pine Flat Rd. Comment
  SEINET8465052 Image available Pentagramma triangularis subsp. triangularis G. K. Helmkamp, E. A. Helmkamp 2010-6-5 16241 Sonoma North Coast Ranges: River Rd., 9.6 miles west of its junction with US-101, 4.25 mi. ENE (83 deg. ) of Guemeville on slope above the Russian River 12 Comment
  CAS-BOT-BC222741  Perideridia gairdneri subsp. gairdneri Peter Rubtzoff 1951-8-19 666 Sonoma Pitkin Marsh, near Forestville. Lower part of the Upper Marsh Comment
  CAS-BOT-BC222742  Perideridia gairdneri subsp. gairdneri John Thomas Howell 1946-8-17 22862 Sonoma Cunningham Marsh Comment
  UCD161302  Persicaria amphibia James A Neilson Jr. 1976-5-10 3688 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-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-BC258010  Persicaria hydropiper Peter Rubtzoff 1973-8-20 7223 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  CAS-BOT-BC418904  Persicaria hydropiperoides Peter Rubtzoff 1958-8-31 3953 Sonoma Atascadero Creek Marsh Comment
  SD123635  Persicaria hydropiperoides Peter Rubtzoff 1960-9-14 4526 Sonoma Laguna de Santa Rosa east of Graton, (betw. Occidental and Guerneville rds.) Comment
  CAS-BOT-BC418894  Persicaria hydropiperoides Catherine Best 1981-8-22 s.n. Sonoma On Stoetz Lane about 2 miles northeast of Occidental Comment
  CAS-BOT-BC419113  Persicaria lapathifolia Peter Rubtzoff 1963-8-24 5244 Sonoma Laguna de Santa Rosa east of Graton Comment
  CAS-BOT-BC419118  Persicaria lapathifolia Peter Rubtzoff 1953-11-1 1439 Sonoma Vacation Beach, near Guerneville. Bank of Russian River Comment
  CAS-BOT-BC419116  Persicaria lapathifolia Peter Rubtzoff 1965-9-5 5643 Sonoma Russian River bottom at Forest Hills (5.5 mi. east of Guerneville) Comment
  CAS-BOT-BC419119  Persicaria lapathifolia Peter Rubtzoff 1955-9-10 2138 Sonoma East Guernewood, near Guerneville Comment
  CAS-BOT-BC419266  Persicaria maculosa Peter Rubtzoff 1951-7-14 4 Sonoma Pitkin Marsh, near Forestville. Northern half of Lower Marsh Comment
  CAS-BOT-BC419267  Persicaria maculosa Peter Rubtzoff 1968-9-21 5978 Sonoma Russian River bottom at Forest Hills, 5.5 mi. east of Guerneville Comment
  CAS-BOT-BC419270  Persicaria maculosa Peter Rubtzoff 1969-8-29 6171 Sonoma Beach of Salmon Creek ca. 1/2 mi. upstream from Hwy. #1 Comment
  CAS-BOT-BC419274  Persicaria maculosa Peter Rubtzoff 1958-7-20 3787 B Sonoma Laguna de Santa Rosa northeast of Graton (nr. Guerneville Rd.) Comment
  JEPS18122  Petrorhagia nanteuilii Rimo Bacigalupi with G. T. Robbins and F. Hoffmann 1956-5-31 5676 Sonoma along secondary road following Big Austin Creek (at base of The Butcher Knife); along secondary road following Big Austin Creek 182 Comment
  OBI48665  Phacelia californica Joseph Andorfer Ewan 1935-5-12 9225 Sonoma 1.5 mi W of Bodega on Bodega Bay rd Comment
  UCD120302  Phacelia californica K. Esau 1932-5-2 s.n. Sonoma Bodega Bay. Comment
  JEPS128247  Phacelia corymbosa Roger Raiche 2000-5-28 116 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UC107445  Phacelia distans J. W. Congdon 1880-4-9 Sonoma Petaluma Comment
  UC1299136  Phacelia distans Freed W. Hoffman April 1948 2758 Sonoma between Occidental and Monte Rio Comment
  UCR168244  Phacelia distans Alice Eastwood 1933-5-7 18841 Sonoma Sonoma 198 Comment
  UC24390  Phacelia egena F. T. Bioletti 1892-1 Sonoma Sonoma Comment
  UC901847  Phacelia imbricata Malcolm Nobs, F. W. Hoffmann, and A. R. Kruckeberg 1950-6-4 671 Sonoma 1 mi nw Lafayette School (ca 5 mi e of Guerneville); Fred McMurray Ranch Comment
  SEINET12347573  Phacelia imbricata F. H. Utech 1986-5-13 86 -106 Sonoma ca 3 mi NE on Cavedale Road from junction with CA 12 250 Comment
  CAS-BOT-BC154988  Phalaris Peter Rubtzoff 1974-5-11 7406 Sonoma Laguna de Santa Rosa E of Sebastopol (south of Hwy. 23 crossing). Comment
  RSA783845  Phalaris Peter Rubtzoff 1978-5-20 9175 Sonoma Todd Road, 1.4 mi from Hwy 116 and 0.6 mi from Llano Road (off N side of road, in Todd Road Wildflower Preserve). Comment
  CAS-BOT-BC258847  Phalaris angusta Peter Rubtzoff 1962-6-19 4921 Sonoma Sonoma County Marshes. Occidental Marsh Comment
  UCR248887  Phalaris aquatica Peter Rubtzoff 1970-7-12 6283 Sonoma Guerneville Marsh Comment
  SEINET11687491  Phalaris aquatica W. Knight, Knight, I. 1984-1 5417 Sonoma next to Spring Lake, Howarth Park, Santa Rosa Comment
  UCD88547  Phalaris californica William Anderson 1965-7-30 s.n. Sonoma Stewart's Point. Comment
  UC1011002  Phalaris minor Doris Cole 1935-5-27 68 Sonoma Petaluma; at Doris Cole's home Comment
  RSA129243  Phleum alpinum H. S. Yates 1936-5-17 5626 Sonoma 1.5 miles E of Bodega Port 122 Comment
  UC1132445  Phleum alpinum H. S. Yates 1936-5-17 5626 Sonoma 1 1/2 mi e Bodega Port; Duncan Mills Quad. Comment
  CAS-BOT-BC260877  Phleum pratense Peter Rubtzoff 1951-7-7 382 Sonoma Eastern branch of the Upper Marsh, Pitkin Marsh near Forestville Comment
  JEPS128214  Phlox speciosa Roger Raiche 2002-5-26 009 .02 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UC353923  Phlox speciosa subsp. nitida Milo S. Baker 1928-3-24 2718 c Sonoma 5 mi w Healdsburg (Jensen Ranch) Comment
  RSA139502  Phoradendron densum Del Wiens 1960-6-14 2723 Sonoma Ca 4 miles SE of Monte Rio on road to Camp Meeker. Comment
  UCD102227  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
  CAS-BOT-BC171222  Phoradendron serotinum subsp. tomentosum A. A. Heller; H. E. Brown 1902-3-12 5036 Sonoma Sonoma Creek, Eastern Base of Mt. Hood Comment
  UC1981710  Phyllospadix R. Ghelardi 1962-10-19 550 Sonoma Horseshoe Cove Comment
  CAS-BOT-BC140620  Physocarpus capitatus Peter Rubtzoff 1960-6-10 4493 Sonoma Fife Creek Marsh Comment
  RSA178026  Physocarpus capitatus Robert F. Thorne 1965-4-19 34316 a Sonoma Harrison Grade, 1/2 mile from Green Valley Road. 152 Comment
  CDA39793  Phytolacca americana var. americana Peter Warner 2013-8-18 297 Sonoma 5381 Thomas Road, Sebastopol (northwest of Graton); along driveway, inside fenced area. 0 Comment
  UCD158851  Pickeringia montana James A. Neilson Jr.; Teresa A. Sholars 1974-12-29 2924 Sonoma The Geysers, Section 15. (Elevation estimated by label maker using Google Earth.) 723 Comment
  POM20260  Pickeringia montana var. montana Michener, Bioletti 7160 Sonoma Hoods Peak Comment
  HSC100961  Pilularia americana Peter Warner, Sarah Gordon 2011-5-16 200 Sonoma McCullough Ranch, end of Cresta Rd. (off Mark West Spring Rd. at Mark West Lodge), 175 m E144 deg. S from swimming pool. 0 Comment
  UCD134778  Pinus muricata P. B. Kennedy 1919-5-16 s.n. Sonoma Del Mar. Comment
  SEINET3560620 Image available Pinus muricata James Montgomery 1969-8-13 83751 a Sonoma Along Route 1, 9 miles north of Ft. Ross. 61 Comment
  SEINET3874482 Image available Pinus radiata Ralph R. Wilson 1939-7-24 437 Sonoma Near Valley Ford.; 0 Comment
  UCD134988  Pinus radiata Mary M. Hektner 1975-8-14 222 Sonoma Next to Whalers' Reach, Unit 7 Owners' Map, Sea Ranch, near State Highway 1. Comment
  SEINET10795154 Image available Pinus sabiniana Henry N. Bolander 1864-8-27 Bolander s.n. Sonoma Sonoma Comment
  UC1044488  Pityopus californicus Mary L. Bowerman 1954-6-27 4334 Sonoma old mill site ca 3 mi e Fort Ross Comment
  CAS-BOT-BC166956  Plagiobothrys Peter Rubtzoff 1969-5-3 6011 Sonoma Laguna de Santa Rosa, ca. 1 mile east-southeast of Sebastopol. Comment
  UCR244740  Plagiobothrys Peter Rubtzoff 1969-6-15 6093 Sonoma Laguna de Santa Rosa, c. 1 mile ESE of Sebastapol 21 Comment
  CAS-BOT-BC154995  Plagiobothrys Peter Rubtzoff 1970-5-16 6219 Sonoma 5 miles north of Sears Point. Comment
  CAS-BOT-BC155000  Plagiobothrys Peter Rubtzoff 1970-5-30 6237 Sonoma 5 miles north of Sears Point. Comment
  CDA13131  Plagiobothrys bracteatus G. F. Hrusa, R. Gross 1996-6-3 13066 Sonoma North Coast Biodiversity Arena; W end of Diamond Mtn. Rd. Lower of two pools, approx 150 meters apart. 2 m. SW of Calistoga. Comment
  RSA620970  Plagiobothrys bracteatus Peter Rubtzoff 1955-5-7 1822 Sonoma Guerneville Marsh Comment
  UCD84292  Plagiobothrys bracteatus Ayzik Solomeshch 2009-5-12 s.n. Sonoma Along Bennett Valley Road (between Santa Rosa and Glen Ellen). 189 Comment
  CAS-BOT-BC228115  Plagiobothrys chorisianus John H. Thomas 1976-6-16 18256 Sonoma Southern part of Sea Ranch, NW part of county, about 7 miles S of Gualala 30 Comment
  POM204149  Plagiobothrys greenei J. T. Howell 1934-3-27 11803 Sonoma Summit of Bennett Valley road from Glen Ellen to Santa Rosa Comment
  RSA0062817  Plagiobothrys reticulatus Greg de Nevers 1989-04 9070 Sonoma Pepperwood Ranch, 3450 Franz Valley Road. By Murrys Gate. 100 Comment
  RSA620967  Plagiobothrys reticulatus Peter Rubtzoff 1960-5-18 4375 Sonoma Bodega Head Marsh. Comment
  UCR255045  Plagiobothrys reticulatus var. reticulatus Greg de Nevers 1989-1 9070 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  RSA783850  Plagiobothrys stipitatus var. micranthus Peter Rubtzoff 1972-5-14 6740 Sonoma 4.25 mi W of Glen Ellen on Bennett Valley Road. Comment
  RSA785153  Plagiobothrys stipitatus var. stipitatus Peter Rubtzoff 1969-5-3 6017 Sonoma Laguna de Santa Rosa, ca. 1 mi ESE of Sebastopol Comment
  SD130522  Plagiobothrys tenellus F. Almeda, G. DeNevers 1981-3-30 4892 Sonoma southeast facing slopes just west of the Redwood Canyon. Comment
  UCD164695  Plagiobothrys undulatus Peter Rubtzoff; Tim Tunison, Nancy Harrison 1976-6-5 8582 Sonoma False Lake Meadow area, Annadel State Park. Comment
  RSA151887  Plagiobothrys undulatus Robert Ornduff 1960-4-21 6072 Sonoma West edge of Sonoma. Both sides of Hayes St., south of Sonoma Elementary School. Comment
  RSA783737  Plagiobothrys undulatus Peter Rubtzoff 1969-6-15 6091 Sonoma Laguna de Santa Rosa, about 1 mile ESE of Sebastopol. Comment
  CAS-BOT-BC290697  Plantago Peter Rubtzoff 1971-6-26 6574 Sonoma Willow Creek Marsh. Comment
  JEPS103958  Plantago lanceolata Jack and Betty Guggolz 1991-5-27 1158 Sonoma E side of Hwy 1 just S of the S end of Meyers Grade Comment
  UC730039  Plantago lanceolata Leo F. Koch 1940-4-18 790 Sonoma 3 mi from Occidental (to Freestone) Comment
  UC565399  Plantago subnuda G. Thomas Robbins 1937-6-5 220 Sonoma Pitkin Ranch, Vine Hill region, about 10 miles west of Santa Rosa. Comment
  CDA11317  Pleuropogon californicus G. F. Hrusa, A. Buckman, R. Gross 1995-4-1 12032 Sonoma North Coast Biodiversity Arena; LAGUNA DE SANTA ROSA. Todd Rd. Reserve, near corner of Todd Rd. and Llano Rd. Moist upper margins of pools. Comment
  SBBG34041  Pleuropogon californicus L. S. Rose 1965-4-4 65019 Sonoma Sonoma 24 Comment
  SJSU5733  Pleuropogon californicus Lewis S. Rose 1965-4-4 65019 Sonoma Sonoma 24 Comment
  UCD90170  Pleuropogon californicus David L. Morgan 1961-4-25 s.n. Sonoma near Stemple Creek, 3 miles southwest of Cotati. Comment
  CAS-BOT-BC260985  Pleuropogon californicus var. californicus A. A. Heller 1902-4-15 5294 Sonoma Santa Rosa Comment
  HSC82085  Pleuropogon californicus var. californicus Thomas W. Nelson, Jane P. Nelson 1980-5-3 5128 Sonoma Along Roberts Rd. ca. 100 m past bridge over Copeland Creek, E of Rhonert Park 61 Comment
  RSA73965  Pleuropogon californicus var. californicus Milo S. Baker 1952-4-20 12402 Sonoma Western outskirts of Sonoma, along 5th street. Comment
  UCSB63833  Pleuropogon davyi James D. Jokerst 1993-5-13 3979 Sonoma collected the Sonoma Air Center Sonoma Air Center Comment
  HREC248 Image available Pleuropogon hooverianus Chuck Williams 1998-5-21 2162 Sonoma Hopland Field Station: 4100 Pressley Rd. Comment
  UCD92206  Poa Collector Unknown 1941-5-1 371 Sonoma near Wright School. Comment
  UCD92209  Poa Collector Unknown 1942-4-1 377 Sonoma bank of Mark West Creek, about 3 miles east of Springs on the main road. Comment
  UCD90338  Poa annua Beecher Crampton 1955-3-15 2325 Sonoma Sonoma County, town of Asti. Comment
  UCD90689  Poa bulbosa David L. Morgan 1961-3-23 s.n. Sonoma Cotati. Comment
  POM204981  Poa douglasii A. A. Heller 1902-3-29 5187 Sonoma Bodega Bay Comment
  UC1132643  Poa howellii H. S. Yates 1936-5-16 5608 Sonoma 1 mi nw Mountain View School; Sebastopol Quadrangle Comment
  UCR248953  Poa pratensis Peter Rubtzoff 1976-6-18 8650 Sonoma Kenwood Marsh 120 Comment
  CAS-BOT-BC243247  Poa secunda subsp. secunda John Thomas Howell; et al. 1981-5-14 54024 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles NE of Penngrove on the W slope of Sonoma Mountain 457 Comment
  CAS-BOT-BC243255  Poa secunda subsp. secunda G. DeNevers 1981-4-4 622 Sonoma Pepperwood Ranch. By the Studio Comment
  UCD36686  Poa trivialis Beecher Crampton 1955-6-17 2939 Sonoma Sonoma County, 0.5 mile south of Guerneville. Comment
  HSC93551  Pogogyne douglasii G. Fred Hrusa, A. Buckmann 1996-10-5 13586 Sonoma Summit of Mayacmas Range at W end of Diamond Mtn. Rd., 2 mi. SW of Calistoga 700 Comment
  SDSU19283  Pogogyne douglasii Scott McMillan 1993-6-10 10 VI93A Sonoma Bennett Rd. north of Glen Ellen. Comment
  POM62751  Pogogyne douglasii subsp. parviflora A. A. Heller 1902-6-4 5642 Sonoma Santa Rosa. Comment
  RSA264717  Pogogyne douglasii subsp. parviflora Peter Rubtzoff 1974-5-26 7499 Sonoma Todd Road 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  CAS-BOT-BC368094  Pogogyne serpylloides Greg de Nevers 1998-5-5 11228 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. On Weimar Flat 400 Comment
  JEPS128235  Polygala californica Roger Raiche 2000-3-30 054 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UC450151  Polygala californica Milo S. Baker 1898-6-11 657 Sonoma Little Sulphur Creek Comment
  RSA135334  Polygala californica Volney Rattan 1883-5-9 s.n. Sonoma Glen Ellen Comment
  CAS-BOT-BC110532  Polygonum Peter Rubtzoff 1973-8-20 7223 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  UCD164986  Polygonum Peter Rubtzoff; Nancy Harrison, Ruth Hass 1974-8-31 7853 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC110531  Polygonum Peter Rubtzoff 1975-8-28 8363 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC210114  Polygonum Peter Rubtzoff 1955-5-7 1823 Sonoma Guerneville Marsh. Eastern extension of the Marsh along Pocket Canyon. Comment
  POM161244  Polygonum amphibium var. stipulaceum R. C. Bacigalupi 1958-6-18 s.n. Sonoma Beach at mouth of Salmon Creek, 2 miles N of Godega Bay Comment
  UCD166508  Polygonum aviculare subsp. aviculare Peter Rubtzoff 1956-9-14 2887 Sonoma Vacation Beach, near Guerneville. Russian River. Comment
  CAS-BOT-BC414280  Polygonum aviculare subsp. depressum Peter Rubtzoff 1961-8-22 4681 Sonoma Fife Creek Marsh Comment
  CLARK-A1528-5207  Polygonum convolvulus John C. Roos 1959-7-30 Sonoma Healdsburg Garden Comment
  CDA2793  Polygonum cuspidatum H. F. McCracken 1967-10-11 Sonoma West 4th Street, Santa Rosa. 0 Comment
  UC850174  Polygonum lapathifolium Lewis S. Rose 1938-9-11 38254 Sonoma Bloomfield 30 Comment
  UCD136916  Polypodium californicum Frederica Bowcutt 1996-5-23 2145 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 at toe of Sugarloaf Ridge just S of campground on rocky slope. 377 Comment
  UC440181  Polypodium calirhiza Michener and Bioletti Mar 1892 Sonoma Adobe Canyon Comment
  CAS-BOT-BC328122  Polypogon Peter Rubtzoff 1964-7-14 5402 Sonoma Bennett Mountain Lake. Comment
  POM206955  Polypogon interruptus Jos Burtt Davy 1896-07 s.n. Sonoma Near Guerneville. Comment
  UCD36689  Polypogon interruptus Beecher Crampton 1955-6-17 2945 Sonoma 4.5 miles S of Cazadero. Comment
  CAS-BOT-BC237403  Polypogon monspeliensis Peter Rubtzoff 1951-8-19 642 Sonoma Pitkin Marsh, near Forestville. S half of Lower Marsh Comment
  CAS-BOT-BC237406  Polypogon monspeliensis Peter Rubtzoff 1955-7-9 1935 Sonoma Forestville Marsh Comment
  CAS-BOT-BC237408  Polypogon monspeliensis Peter Rubtzoff 1956-9-11 2847 Sonoma Vacation Beach, near Guerneville, Russian River bottom Comment
  CAS-BOT-BC237409  Polypogon monspeliensis Peter Rubtzoff 1958-7-5 3745 Sonoma Atascadero Creek Marsh Comment
  UCD91353  Polypogon monspeliensis David L. Morgan 1955-6-27 s.n. Sonoma Porter's Gulch, between Soquel and Aptos. 15 Comment
  CAS-BOT-BC237615  Polypogon viridis Peter Rubtzoff 1959-6-6 4102 Sonoma Willow Creek Marsh Comment
  CAS-BOT-BC311810  Polypogon viridis Peter Rubtzoff 1973-8-20 7225 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  CAS-BOT-BC72165  Polystichum californicum G. DeNevers 1982-2-9 1886 Sonoma beneath big power lines W of Garrison house, due W of Fir Forest Comment
  UC2031960  Polystichum californicum Wendy Born July 2012 Sonoma Armstrong Redwoods State Park, area by maintenance office Comment
  CAS-BOT-BC72174  Polystichum californicum Peter H. Raven 1950-4-23 1885 Sonoma Sobre Vista 152 Comment
  CAS-BOT-BC257343  Populus Peter Rubtzoff 1973-10-10 7336 Sonoma Salmon Creek, 0.25 miles south of Freestone along creek canyon. Comment
  CAS-BOT-BC445295  Portulaca oleracea Peter Rubtzoff 1965-8-22 5610 Sonoma Russian River, Forest Hills 5.5 mi east of Guerneville. Comment
  POM118993  Potamogeton illinoensis Marcus E. Jones 1882-7-18 s.n. Sonoma Duncan Mills. Comment
  CAS-BOT-BC272848  Potamogeton nodosus Peter Rubtzoff 1974-6-22 7619 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC454025  Potamogeton pectinatus Peter Rubtzoff 1971-9-30 6712 Sonoma Dune pond near U.C. Bodega Marine Laboratory. Comment
  CAS-BOT-BC272846  Potamogeton pusillus Peter Rubtzoff 1964-7-14 5396 Sonoma Bennett Mountain Lake. Comment
  UC903040  Potentilla anserina subsp. pacifica Ethel Crum 1930-6-8 742 Sonoma one mi e Bodega Bay (bottom of gulch); e of Bodega Bay Comment
  CAS-BOT-BC141947  Potentilla anserina subsp. pacifica Peter Rubtzoff 1961-5-6 4675 Sonoma Americano Creek 1/2 mi. east of Valley Ford - Sonoma County Marshes Comment
  CAS-BOT-BC141955  Potentilla anserina subsp. pacifica Peter Rubtzoff 1959-6-13 4127 Sonoma Willow Creek Marsh - Sonoma County Marshes Comment
  CAS-BOT-BC141650  Potentilla uliginosa John Thomas Howell 1946-8-17 22861 Sonoma Cunningham Marsh Comment
  POM64541  Prunella vulgaris var. lanceolata A. A. Heller 1902-6-4 12191 Sonoma Santa Rosa. Comment
  CAS-BOT-BC154681  Prunus subcordata Eliz. Parsons Hawver 1915-6-1 s.n. Sonoma Skaggs Springs Comment
  CAS-BOT-BC154682  Prunus subcordata Stewart Wade 1927-4-1 s.n. Sonoma Healdsburg Comment
  UC861010  Prunus virginiana var. demissa Alice Eastwood 1922-5-5 11295 Sonoma Mount St. Helena Comment
  CDA37440  Pseudognaphalium beneolens D. G. Kelch, Troy McGregor 2010-8-22 10 .336 Sonoma Geyser Peak Rd. Comment
  UCD135197  Pseudognaphalium beneolens M. Barbour 1970-11-30 s.n. Sonoma Bodega Head. Comment
  CAS-BOT-BC80184  Pseudotsuga menziesii A. A. Heller; H. E. Brown 1902-3-31 5188 Sonoma Mt. Hood Comment
  SEINET3351010 Image available Pseudotsuga taxifolia Alan A. Beetle 1940-1 2596 Sonoma 1 mile south of Ft. Ross; hgwy#1 between Jenner and Ft. Ross; Comment
  CAS-BOT-BC176131  Psilocarphus Peter Rubtzoff 1971-6-25 6553 Sonoma Intermittent lake off wst side of Hwy. 1, 0.7 miles southeast of Salmon Creek crossing. Comment
  UCD135312  Psilocarphus tenellus Mary M. Hektner 1974-7-5 125 Sonoma between what will be Helm and Sea Stack; Unit 35-C Owners' Map, Sea Ranch, near State Highway 1. Comment
  SEINET8722024 Image available Psoralea macrostachya Unknown 1892-1 51 a Sonoma Comment
  CAS-BOT-BC421375  Pterostegia drymarioides Alice Eastwood 1900-7-4 s.n. Sonoma Bodega Point Comment
  SEINET12121513  Pteryxia terebinthina var. californica F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -164 Sonoma 0.2 mi W on Harrison Grade Road from junction with Stoetz Lane 146 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
  CAS-BOT-BC466309  Pyrola picta Greg de Nevers 1991-7-9 9756 Sonoma Pepperwood Natural Reserve, 3450 Franz Valley Rd. 475 Comment
  UCD45323  Quercus X chasei John M. Tucker 1952-9-20 2618 Sonoma (Q. kelloggii Newb. X Q. agrifolia Nee). California, Sonoma Co.: Voight Ranch, ca. 1.25 mi. (airline) southwest of Cunningham, along a lane running east from Voight farmhouse. Comment
  CAS-BOT-BC94230  Quercus X eplingii Walter Knight; Irja Knight; Tiffany Knight 1985-6-30 5139 Sonoma Pine Mountain Rd. 304 Comment
  CAS-BOT-BC94704  Quercus X howellii John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary Wells 1981-5-14 53936 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles NE of Penngrove on the W slope of Sonoma Mountain 457 Comment
  CDA11260  Quercus X morehus G. F. Hrusa 1994-10-25 11915 Sonoma North Coast Biodiversity Arena; Austin Creek State Recreation Area. Gilliam Creek, below Bullfrog Pond Camp. Comment
  CAS-BOT-BC61637  Quercus agrifolia Peter Rubtzoff 1951-9-15 746 Sonoma Pitkin marsh, near Forestville. Western branch of the Upper Marsh Comment
  HSC12620  Quercus agrifolia Wendell Wood 1970-9-21 286 Sonoma Preston, Hwy. 101 bridge at Russian River 457 Comment
  UC1173733  Quercus agrifolia Joseph P. Tracy 1939-10-14 16513 Sonoma 4 mi SE of Geyserville (Alexander Valley, foothills) 121 Comment
  UCD45061  Quercus agrifolia John M. Tucker 1952-9-20 2625 Sonoma California Sonoma Co.; Voight Ranch, ca.1.25 mi. (airline) southwest of Cunningham, near stream, ca. 200 yards from farmhouse; small, young tree ca. 8-10 ft. tall. Comment
  UCD151139  Quercus berberidifolia James A. Neilson Jr. 1973-6-6 2959 Sonoma Mayacmas Mountains. The Geysers. Site IV. (Exact location of Site IV unknown. Elevation and coordinates very broadly estimated by label maker.) 441 Comment
  UCD45209  Quercus berberidifolia Roman Gankin 1967-10-4 1078 1 Sonoma Near Rocky Mountain, north of Guerneville, Sonoma County, California. Comment
  UC478891  Quercus chrysolepis Marcus E. Jones, A. M. 1931-8-3 28846 Sonoma Cloverdale Comment
  SD113991  Quercus durata Darley F. Howe 1972-4-28 4813 Sonoma Mt Hood Range, Trinity Road 395 Comment
  UC1193257  Quercus durata R. H. Neuns 1950-5-3 98 Sonoma 6 mi e Geyserville 441 Comment
  UCD46178  Quercus garryana Roman Gankin 1967-10-4 1078 2 Sonoma Near Rocky Mountain, north of Guerneville, Sonoma County, California. Comment
  OBI4985  Quercus kelloggii Lewis S. Rose 1964-6-27 64058 Sonoma 2 mi N of Sonoma 274 Comment
  RSA623531  Quercus kelloggii J. M. Tucker 1952-9-20 2622 Sonoma Voight Ranch, ca. 1.25 miles (airline) southwest of Cunningham, along a lane running east from the Voight farmhouse. Comment
  UC1084354  Quercus kelloggii G. Thomas Robbins 1937-3-25 11 Sonoma 8-10 mi e Santa Rosa; Santa Rosa Creek Canyon Comment
  UC1135655  Quercus kelloggii C. M. Belshaw 1936-3-7 1563 Sonoma 0.25 mi w Trenton; Sebastopol Quad. 182 Comment
  UC5630  Quercus kelloggii unknown 1899-6 111 Sonoma Asti Comment
  UC1193242  Quercus lobata G. W. Tourtillott 1950-4-28 13 Sonoma 1 mi (off) Hale Ranch; Sulphur Creek 213 Comment
  CAS-BOT-BC376399  Ranunculus Greg de Nevers 1996-4-18 10793 Sonoma Knight's Valley Marsh, on Bavarian Lion Ranch, south end of valley. 91 Comment
  RSA0062826  Ranunculus aquatilis Greg de Nevers 1990-3-26 9655 A Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. In Weimar Flat. 100 Comment
  SEINET12087446  Ranunculus californicus A. Eastwood, Howell, J. T. 1939-1 s.n. Sonoma Sonoma coast N of Bodega Bay Comment
  SEINET12089665  Ranunculus californicus Unknown 1980-1 18 Sonoma Skaggs Springs Quad. T10N R11W Sec. 7 61 Comment
  SEINET6908239  Ranunculus californicus W. P. Vestal, A. G. Vestal 1947-5-13 s.n. Sonoma Cove at Bodega Head. Comment
  UCD123944  Ranunculus californicus Caitlin Lewis; William Mutch 1993-4-17 6 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
  UCD14289  Ranunculus californicus L. Coats 1983-5-17 22 Sonoma Sonoma Co.; along Highway 1, 4.3 miles north of Salt Point State Park; 21 Comment
  CAS-BOT-BC378700  Ranunculus californicus var. californicus John Thomas Howell 1931-4-2 6043 Sonoma Boyes Springs Comment
  UC72749  Ranunculus lobbii Milo S. Baker 1898-5-7 603 Sonoma Glen Ellen Comment
  JEPS55144  Ranunculus muricatus W. L. Jepson 1911-4-30 4189 Sonoma near Glen Ellen; Sonoma Valley, Eldridge 60 Comment
  RSA534577  Ranunculus muricatus Peter Rubtzoff 1957-4-28 3292 Sonoma Duncans Mills Marsh Comment
  UCD167340  Ranunculus muricatus James A. Neilson Jr. 1983-5-9 4093 Sonoma Mayacmas Mountains. About 3 mi north of beginning of Geysers-Healdsberg Rd. (Location information obtained from Neilson 4091 which indicated mileage is from the beginning of Geysers-Healdsberg Rd. Exact location unknown. Coordinates estimated by label maker.) Comment
  UCD96257  Ranunculus muricatus Robert F. Thorne 1965-4-19 34273 Sonoma on Titus Ranch, Valley Ford. 18 Comment
  UC1542900  Ranunculus occidentalis H. E. and S. T. Parks 1930-5-9 614 Sonoma Alexander Valley; on banks of stream entering valley Comment
  RSA534613  Ranunculus orthorhynchus var. platyphyllus Peter Rubtzoff 1962-5-11 4827 Sonoma Freestone Marsh Comment
  RSA534706  Ranunculus orthorhynchus var. platyphyllus Peter Rubtzoff 1959-5-31 4084 Sonoma Freestone Marsh Comment
  CAS-BOT-BC492930  Ranunculus pusillus Ayzik Solomeshch 2009-5-11 s.n. Sonoma Santa Rosa Plain; NW of City of Santa Rosa. Maggi Property located SW of the intersection of Fulton and River Rds; sampling pool #1 43 Comment
  UC1121748  Rhamnus californica R. W. Lundh 1932-7-19 121 Sonoma 1 mi nw Los Alamos School; Santa Rosa Quad. 518 Comment
  CAS-BOT-BC53746  Rhododendron columbianum Ella Dales Cantelow 1941-6-7 3643 Sonoma 5 mi. n. of Fort Ross. Hwy 1 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
  RSA94071  Rhynchospora alba J. T. Howell 1945-7-18 s.n. Sonoma Pitkin Marsh Comment
  CAS-BOT-BC6187  Rhynchospora californica John Thomas Howell 1936-7-26 12679 Sonoma Pitkin Marsh, 5 miles N of Sebastopol Comment
  SEINET4178848 Image available Rhynchospora globularis Unknown 1946-7-4 12882 Sonoma Pitkin Marsh, between Santa Rosa and Forestville Comment
  POM142003  Ribes californicum A. A. Heller 1903-4-24 6364 Sonoma Woods near Cazadero. Comment
  CAS-BOT-BC93058  Ribes californicum var. californicum Elmer I. Applegate 1932-3-19 7018 Sonoma West of Cloverdale. Comment
  CAS-BOT-BC168992  Ribes divaricatum var. pubiflorum Peter Rubtzoff 1951-6-16 211 Sonoma Northern half of Lower Marsh - Pitkin Marsh, near Forestville Comment
  UC754295  Ribes roezlii var. cruentum R. Bacigalupi 1948-3-6 2857 Sonoma on road from The Geyers to Geyserville; Mayacamas Range Comment
  CAS-BOT-BC344963  Rorippa curvisiliqua Peter Rubtzoff 1976-9-25 8902 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC74692  Rorippa curvisiliqua Peter Rubtzoff 1954-7-3 1516 Sonoma Vacation Beach, near Guernville. Beach of Russian River. Comment
  CAS-BOT-BC74715  Rorippa curvisiliqua Peter Rubtzoff 1976-9-25 8902 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC74704  Rorippa curvisiliqua Peter Rubtzoff 1962-6-13 4913 Sonoma Americano Creek area. Pond near Petaluma Valley Ford road just south of Bloomfield. Comment
  UCR254884  Rorippa curvisiliqua var. occidentalis Peter Rubtzoff 1973-8-25 7259 Sonoma Willow Creek Marsh 9 Comment
  CAS-BOT-BC74850  Rorippa palustris var. palustris Volney Rattan 1877-6-15 s.n. Sonoma Guerneville. Comment
  CAS-BOT-BC152653  Rosa californica Alice Eastwood; John Thomas Howell 1936-5-19 2522 Sonoma 2 miles n. of Windsor Comment
  CAS-BOT-BC152656  Rosa californica John Thomas Howell 1926-11-14 2248 Sonoma Santa Rosa Comment
  CAS-BOT-BC152658  Rosa californica Peter Rubtzoff 1951-8-18 631 Sonoma Western branch of the Upper Marsh - Pitkin Marsh, near Forestville Comment
  CAS-BOT-BC152659  Rosa californica Peter Rubtzoff 1951-7-7 363 Sonoma Western branch of the Upper Marsh - Pitkin Marsh, near Forestville Comment
  UC914710  Rosa californica Marcus E. Jones, A. M. 1882-7-18 Sonoma Duncan's Mills Comment
  CAS-BOT-BC148204  Rosa rubiginosa John Thomas Howell 1946-8-17 22871 Sonoma Cunningham Marsh Comment
  UC191247  Rosa spithamea Edw. L. Greene 1888-9-1 Sonoma Comment
  CAS-BOT-BC499108  Rubus parviflorus Ann Howald 2015-4-1 3312 Sonoma North Coast Ranges: Stewarts Point-Skaggs Springs Rd, 11.5 mi W of intersection with Rockpile Rd, Warm Springs drainage 408 Comment
  UCD113851  Rubus parviflorus Mary M. Hektner 1974-6-28 85 Sonoma Unit 21 Owners' Map, Sea Ranch, near State Highway 1. Comment
  UCD15022  Rubus parviflorus Allen Hahus 1978-4-22 15 Sonoma along Jonive Road, 0.6 miles north of highway 12; 152 Comment
  CAS-BOT-BC262817  Rubus spectabilis Peter Rubtzoff 1957-4-28 3291 Sonoma Duncans Mills Marsh; lower part of the marsh. Comment
  RSA800354  Rubus spectabilis Peter Rubtzoff 1957-4-28 3291 Sonoma Duncans Mills Marsh. Comment
  CAS-BOT-BC158722  Rubus ulmifolius Mary P. Wells 1985-7-1 527 Sonoma Bank of Ducker Creek, Rincon Valley, Santa Rosa Comment
  CAS-BOT-BC158721  Rubus ulmifolius Milo S. Baker 1944-7-31 10879 Sonoma Bank of Sonoma Cr. at the Miller residence below Kenwood. Comment
  SEINET11910567  Rubus ulmifolius var. inermis W. Knight, Knight, I.; Wagnon, K. 1984-1 5064 Sonoma between Enterprise Road and Cooper's Grove on Sonoma Mt. Road Comment
  SEINET11912601  Rubus ulmifolius var. inermis H. K. Wagnon 1990-1 1976 Sonoma bank of Santa Rosa Creek by Brookwood Ave. bridge, Santa Rosa Comment
  UCD17810  Rubus ursinus H. Olmo 8-10 May 1962 62 04 Sonoma California. Sonoma County: 1.4 miles from Bridgehaven Restaurant turnoff, heading north. Comment
  CAS-BOT-BC110496  Rumex Peter Rubtzoff; Nancy Harrison 1974-9-7 7884 Sonoma Hinebaugh Creek in Rohnert Park east of Commerce Boulevard crossing of the creek. Comment
  RSA783793  Rumex Peter Rubtzoff 1955-8-7 2029 Sonoma Guerneville Marsh. Along Pocket Canyon. Comment
  UCD166511  Rumex Peter Rubtzoff 1959-9-12 4262 Sonoma Willow Creek Marsh. Comment
  RSA790985  Rumex Peter Rubtzoff 1959-9-12 4262 Sonoma Willow Creek Marsh. Comment
  CAS-BOT-BC421581  Rumex crassus Walter Knight; Irja Knight 1963-8-13 179 Sonoma Horseshoe Cove Comment
  CAS-BOT-BC421582  Rumex crassus Peter H. Raven; R. Snow 1958-7-23 13687 Sonoma 2.6 miles north of Jenner Comment
  CAS-BOT-BC433414  Rumex crispus G. DeNevers 1981-5-7 1004 Sonoma Pepperwood Ranch. Confluence of Leslie Creek with Mark West Creek, along the bank of Mark West Creek. Comment
  CAS-BOT-BC166800  Rumex fueginus Peter Rubtzoff 1962-9-30 5097 Sonoma Vacation Beach, 2 miles below Guerneville. Comment
  UCD158722  Rumex salicifolius James A. Neilson Jr. 1974-7-31 2832 Sonoma Mayacmas Mountains. North of Little Geysers well # 2. 731 Comment
  RSA698487  Rumex salicifolius var. montigenitus J. R. Bruff 1936-07 s.n. Sonoma Bodega Bay. Comment
  HSC49283  Rupertia physodes J. P. Smith, J. O. Sawyer 1977-6-5 2880 Sonoma Canyon Rd. about 1/2 mi. W of US 101 across from Pendrocelli Winery Comment
  CAS-BOT-BC249311  Sagina Peter Rubtzoff 1953-5-30 1419 Sonoma Vacation Beach near Guerneville, along Russian River. Comment
  CAS-BOT-BC249312  Sagina Peter Rubtzoff 1960-5-18 4377 Sonoma Bodega Head Marsh. Comment
  CAS-BOT-BC445693  Sagittaria cuneata Peter Rubtzoff 1961-7-22 4666 Sonoma Bennett Mtn. Lake. Comment
  CAS-BOT-BC445696  Sagittaria cuneata Peter Rubtzoff 1971-7-9 6594 Sonoma 5 mi. north of Sears Point. Comment
  CAS-BOT-BC445698  Sagittaria cuneata Peter Rubtzoff 1963-7-27 5211 Sonoma Laguna de Santa Rosa east of Graton. Comment
  UCD148463  Salicornia Peter Rubtzoff 1963-8-17 5222 Sonoma Petaluma Creek just east of Petaluma. Comment
  UC1191412  Salicornia europaea Herbert L. Mason 1946-7-29 12956 -A Sonoma 0.5 mi n Sears Point Comment
  UCD151195  Salix James A. Neilson Jr. 1974-7-10 2975 Sonoma Mayacmas Mountains, road to PG and E geothermal units 9 and 10. (Elevation estimated using topo map by label maker.) 975 Comment
  CAS-BOT-BC126265  Salix X sepulcralis W. A. Setchell 1934-3-17 s.n. Sonoma Valley Ford Road, six miles from Petaluma Comment
  RSA0015567  Salix babylonica Peter Rubtzoff 1955-8-14 2051 Sonoma Forestville Marsh. Comment
  CAS-BOT-BC103077  Salix bonplandiana Maxine Wilkes 1933-5-21 s.n. Sonoma Mt. St. Helena Comment
  RSA534609  Salix bonplandiana Peter Rubtzoff, Theodore J. Crovello 1964-9-3 5494 Sonoma Bodega Bay Marsh. Comment
  UC1299158  Salix breweri Freed W. Hoffman 1947-5-30 517 Sonoma Layton Mine North Coast Ranges, Austin Creek Comment
  CAS-BOT-BC103942  Salix exigua Peter Rubtzoff 1954-7-4 1531 Sonoma Austin Creek Marsh Comment
  POM106848  Salix exigua Marcus E. Jones 1882-7-17 s.n. Sonoma Duncan's Mills. Comment
  CAS-BOT-BC103941  Salix exigua H. K. Wagnon 1988-8-8 1798 Sonoma Confluence of Maacama Crk. and Russian River Comment
  UC453086  Salix exigua var. hindsiana W. A. Setchell 1931-7-25 7 Sonoma Russian R. at Bohemian Grove (near Monte Rio) 213 Comment
  UCD151172  Salix exigua var. hindsiana James A. Neilson Jr. 1974-3-3 3022 Sonoma Mayacmas Mountains. The Geysers. Site A-8. (Elevation estimated using Google Earth by label maker.) 426 Comment
  SEINET11992143  Salix hookeriana F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -154 Sonoma Bridgehaven, near junction of Willow Creek Road & CA 1, along Russian River 37 Comment
  SEINET5633132 Image available Salix jepsonii A. A. Heller 1902-1 5044 Sonoma Foot of Mount Hood. Comment
  UC66157  Salix laevigata A. A. Heller 1902-4-18 5335 Sonoma on Russian R. near Windsor; Russian R. Comment
  UC66172  Salix lasiandra subsp. lasiandra A. A. Heller 1902-4-18 5329 Sonoma on Russian R. near Windsor; Russian R. Comment
  CAS-BOT-BC128054  Salix lasiandra var. lasiandra Peter Rubtzoff 1962-5-5 4806 Sonoma Fife Creek Marsh, open bank of Fife Creek - Sonoma County Marshes Comment
  CAS-BOT-BC107088  Salix lasiolepis Mary P. Wells 1986-2-2 736 Sonoma north of Wild Moor Reach, The Sea Ranch Comment
  CAS-BOT-BC107089  Salix lasiolepis Mary P. Wells 1986-2-2 726 Sonoma north of Wild Moor Reach, The Sea Ranch Comment
  CAS-BOT-BC107095  Salix lasiolepis Peter Rubtzoff 1952-6-15 1263 Sonoma Fitch Mtn. Grove, near Healdsburg. Bank of Russian River Comment
  UC453105  Salix lasiolepis W. A. Setchell 1931-7-31 20 Sonoma Bodega Bay Comment
  POM281345  Salix lasiolepis Lyman D. Benson 1930-3-20 1954 Sonoma Toward Healdsburg. Santa Ross. N Coast mtn range. 152 Comment
  SEINET10396745  Salix lasiolepis A. A. Heller 1902-3-28 5177 Sonoma Bodega Bay. Comment
  SEINET5633134 Image available Salix lasiolepis A. A. Heller 1902-1 2738 Sonoma Santa Rosa creek, east of Santa Rosa. Comment
  CAS-BOT-BC107350  Salix lasiolepis var. bigelovii Peter Rubtzoff; T. J. Crovello 1964-9-3 5495 Sonoma Bodega Bay Marsh Comment
  SD133978  Salix lasiolepis var. bigelovii Peter Rubtzoff 1966-11-9 5837 Sonoma Salmon Creek near Freestone Comment
  CAS-BOT-BC128313  Salix lasiolepis var. lasiolepis Peter Rubtzoff 1951-11-24 845 Sonoma A marshy opening south of the Upper Marsh - Pitkin Marsh near Forestville Comment
  CAS-BOT-BC128316  Salix lasiolepis var. lasiolepis Peter Rubtzoff 1951-11-24 845 Sonoma A marshy opening south of the Upper Marsh 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-BC128318  Salix lasiolepis var. lasiolepis W. A. Setchell 1933-7-2 1 Sonoma Bohemian Grove, well away from the Russian River, Monte Rio Comment
  CAS-BOT-BC128319  Salix lasiolepis var. lasiolepis W. A. Setchell 1933-7-2 2 Sonoma Bohemian Grove, well away from the Russian River, Monte Rio Comment
  SEINET10417356  Salix lucida subsp. lasiandra A. A. Heller 1902-3-18 5098 Sonoma Santa Rosa Creek, E of Santa Rosa. Comment
  UC453089  Salix melanopsis W. A. Setchell 1931-7-25 9 Sonoma Russian R. at Bohemian Grove near Monte Rio; Russian R. Comment
  UC453094  Salix melanopsis W. A. Setchell 1931-7-25 13 Sonoma Bohemian Grove near Monte Rio (Russian R.); Russian R. Comment
  CAS-BOT-BC126193  Salix scouleriana Ynes Mexia 1933-2-18 s.n. Sonoma Four miles south of Camp Meeker Comment
  CAS-BOT-BC126196  Salix scouleriana Baker; Ball; Bracelin; Crum 1931-5-9 342 Sonoma Two km. east of Occidental, on Occidental Grade Comment
  CAS-BOT-BC126198  Salix scouleriana Baker; Ball; Bracelin; Crum 1931-5-9 343 Sonoma Two km. east of Occidental, on Occidental Grade Comment
  CAS-BOT-BC126199  Salix scouleriana Peter Rubtzoff 1951-8-18 627 Sonoma Western branch of the Upper Marsh Comment
  SJSU234  Salix scouleriana Baker, Ball, Bracelin & Crum 1931-5-9 343 Sonoma 2 km E of Occidenta on Occidental Grade Comment
  UC517940  Salix scouleriana W. A. Setchell 1934-3-17 Sonoma beside rd. entering Bohemian Grove Monte Rio Comment
  UC524791  Salix scouleriana W. A. Setchell 1934-7-10 8 Sonoma Ridge Hwy. above Fort Ross Comment
  UC524792  Salix scouleriana W. A. Setchell 1934-7-10 9 Sonoma Ridge Hwy. above Fort Ross Comment
  CAS-BOT-BC126185  Salix scouleriana W. W. Schneebeli 1963-7-1 s.n. Sonoma Joy Grade Road on Fathergill Ranch west of Occidental Comment
  CAS-BOT-BC128903  Salix sitchensis Ball; Bracelin; Parks & Parks 1931-4-21 36 Sonoma Maacama Creek, 25 km. northwest of Calistoga Comment
  CAS-BOT-BC128906  Salix sitchensis Ball; Bracelin; Baker; Crum 1931-5-9 344 Sonoma About 2 km. east of Bodega Bay Comment
  CAS-BOT-BC128908  Salix sitchensis Mary P. Wells 1982-8-21 120 Sonoma North end of South Gerstle Cove, Salt Point State Park Comment
  CAS-BOT-BC128909  Salix sitchensis Mary P. Wells 1981-4-19 s.n. Sonoma East of Coast Highway, part way up Moonraker Rd., The Sea Ranch Comment
  UC482066  Salix sitchensis Baker, Ball, Bracelin, and Crum 1931-5-9 344 Sonoma 2 km. e. Bodega Bay Comment
  UC482069  Salix sitchensis Baker, Ball, Bracelin, and Crum 1931-5-9 344 Sonoma 2 km. e. Bodega Bay Comment
  UCD125322  Salvia columbariae Frederica Bowcutt 1996-5-24 2167 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 Adobe Canyon Road W of kiosk. Comment
  CAS-BOT-BC225210  Salvia sonomensis F. H. Utech; Walter Knight; Irja Knight 1984-4-16 84 -099 Sonoma Ca. 4.0 mi NNW of Sonoma on Cavedale Road from junction with CA Hwy 12, ca 1.6 mi N on Cavedale Road from junction 396 Comment
  UC73327  Sanicula arctopoides Milo S. Baker 1898-4-5 6 a Sonoma between Stewarts Point and Sea View Comment
  POM117139  Sanicula crassicaulis Marcus E. Jones 1924-4-25 s.n. Sonoma Cloverdale. Comment
  POM82758  Sanicula crassicaulis Marcus E. Jones 1882-7-18 s.n. Sonoma Duncan Mills. Comment
  UCD128076  Sanicula crassicaulis M. Wiesendanger 1927-5-5 733 Sonoma Kenwood Springs. 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
  CDA12818  Sanicula laciniata G. F. Hrusa, R. Gross 1996-3-8 12652 Sonoma North Coast Biodiversity Arena; near summit on NE side of Chalk Hill. Foote Ranch at corner of Ida Clayton Rd. and Hwy. 128. Comment
  CAS-BOT-BC328134  Santolina chamaecyparissus Peter Rubtzoff 1952-5-31 1129 Sonoma Upper Marsh in the west, Pitkin Marsh near Forestville Comment
  CAS-BOT-BC251245  Saponaria Peter Rubtzoff 1967-8-18 5849 Sonoma 6 miles east of Guerneville. Comment
  UCD166486  Saponaria Peter Rubtzoff 1965-9-5 5634 Sonoma Forest Hills, 5.5 miles east of Guerneville, along Russian River. Comment
  SDSU7967  Satureja douglasii D. F Howe 1963-7-3 3589 Sonoma 20 miles north of junction with #12 on #1. Comment
  UC11769  Saxifraga californica F. T. Bioletti 1894-1 Sonoma Hood's Peak Comment
  RSA52688  Scandix pecten-veneris I. L. Wiggins 1949-4-30 12059 Sonoma Roadside 6.8 miles east of Santa Rosa on road to Calistoga Comment
  RSA789039  Scandix pecten-veneris Carrie A. Herd 1982-3-30 30 Sonoma Rohnert Park State University, Sonoma next to bicycle path between Rancho Cotate High School and Sonoma State University. Comment
  UCD128058  Scandix pecten-veneris Botany 102 Students 1993-4-24 88 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 Hillside Trail. 411 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-BC111796  Schoenoplectus pungens var. badius Marcus Eugene Jones 1882-7-18 3526 Sonoma Duncan's Mills Comment
  CAS-BOT-BC111798  Schoenoplectus pungens var. badius Peter Rubtzoff 1954-7-26 1558 Sonoma Lower Salmon Creek Marsh. Comment
  CAS-BOT-BC111799  Schoenoplectus pungens var. badius Peter Rubtzoff 1954-8-10 1679 Sonoma Bodega Head Marsh. Comment
  CAS-BOT-BC111804  Schoenoplectus pungens var. badius Peter Rubtzoff 1964-8-20 5471 A Sonoma Near pond 1 mi. SE of Jenner (near junction of Highways 1 and 12). Comment
  CAS-BOT-BC111836  Schoenoplectus tabernaemontani Peter Rubtzoff 1955-7-9 1930 Sonoma Forestville Marsh. Comment
  CAS-BOT-BC111838  Schoenoplectus tabernaemontani Peter Rubtzoff 1986-8-31 9734 Sonoma Russian River at Forest Hills, 5.5 miles East of Guerneville. Comment
  CAS-BOT-BC111839  Schoenoplectus tabernaemontani Peter Rubtzoff 1986-9-28 9742 Sonoma Russian River at Forest Hills, 5.5 miles East of Guerneville. Comment
  SEINET11750297  Schoenoplectus tabernaemontani W. Knight, Knight, I. 1984-1 5427 Sonoma Willow Cr. Road 61 Comment
  CAS-BOT-BC361425  Scirpus microcarpus Greg de Nevers 1997-4-1 10925 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC320540  Scrophularia californica Peter Rubtzoff 1953-5-16 1356 Sonoma Vacation Beach, near Guerneville, along Russian River. Comment
  RSA0022386  Scrophularia californica Peter Rubtzoff 1953-5-16 1356 Sonoma Vacation Beach. Near Guerneville. along Russian River. Comment
  CAS-BOT-BC344882  Scrophulariaceae Peter Rubtzoff 1964-6-6 5355 Sonoma Fitch Mountain Grove, 2 miles east of Healdsburg. Comment
  RSA0074774  Sedum spathulifolium Christopher Davidson 1977-6-17 5884 Sonoma Coast Hwy 1, ca. 3 miles N of Jenner. Comment
  OBI59736  Selaginella wallacei S. F. Blake 1927-8-28 10351 Sonoma Near Petrified Forest, near Santa Rosa Comment
  CDA42468  Selaginella wallacei T. C. Fuller 1958-5-24 4016 Sonoma 1.5 mi. north of Camp Meeker. 0 Comment
  UCD151310  Senecio aronicoides James A. Neilson Jr. 1974-4-30 2726 Sonoma Mayacmas Mountains. Ridge between Squaw Creek and Big Sulphur Creek, (Elevation and coordinates estimated by label maker.) 731 Comment
  UCR279645  Senecio glomeratus Peter Rubtzoff 1954-8-3 1636 Sonoma Lower Salmon Creek Marsh 6 Comment
  UCD148418  Senecio hydrophilus Peter Rubtzoff 1959-8-2 4208 Sonoma Willow Creek Marsh. Comment
  JEPS77268  Senecio sylvaticus Robert M. Lloyd 1963-4-24 2404 Sonoma 18.9 mi e State Highway 12 (on road to Oakdale) Comment
  UCD18204  Senecio sylvaticus Joe Ditomaso 2001-5-9 s.n. Sonoma Bodega Bay Marine Lab, in sand dunes near housing facility. Comment
  CAS-BOT-BC80318  Sequoia sempervirens A. A. Heller; H. E. Brown 1902-3-16 5080 Sonoma Russian River, Near Trenton Comment
  CAS-BOT-BC80326  Sequoia sempervirens A. A. Heller 1906-3-16 5080 Sonoma Russian [river] River near Trenton Comment
  SEINET10612339  Sequoia sempervirens A. Arthur Heller, H. E. Brown 1902-3-16 Heller 5080 Sonoma Russian River, Near Trenton. Comment
  SEINET8714496 Image available Sequoia sempervirens L. Fallon 1939-1 s.n. Sonoma 15 miles west of Santa Rosa on Guerneville Hy. Comment
  YM-YOSE15452  Sequoia sempervirens Jesse Peter 10/1938 Sonoma 7 miles South of Santa Rosa in Bennet Valley Comment
  CAS-BOT-BC366891  Setaria Greg de Nevers 1997-9-29 11099 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Mark West Creek at Leslie Creek junction 400 Comment
  RSA0051276  Setaria Greg de Nevers 1996-9-22 10877 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. In Mark West Creek at Leslie Creek. 100 Comment
  UCD92681  Setaria faberi David L. Morgan 1958-8-6 s.n. Sonoma Highway 101, Sonoma-Marin County Line. Comment
  SEINET10827242  Setaria parviflora P. Rubtzoff 1971-9-2 Rubtzoff 6685 Sonoma Todd Road near Stony Point Road. Dry roadside ditch, in the open. Comment
  CAS-BOT-BC240275  Setaria viridis G. DeNevers 1981-6-27 1672 Sonoma Pepperwood Ranch. On a walk up through the Devil's Kitchen. Kellog Ranch. Starting from the bottom of the hill in Franz Valley, along Franz Valley Road. Weed along Franz Valley Road Comment
  CAS-BOT-BC371430  Sherardia arvensis Greg de Nevers 1997-4-17 10948 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  UCR275238  Sidalcea Peter Rubtzoff, Vanette Bunyan, Nancy Harrison, Marion Weiger 1974-8-5 7814 Sonoma Kenwood Marsh 120 Comment
  CAS-BOT-BC290641  Sidalcea Peter Rubtzoff 1974-5-26 7497 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  JEPS54475  Sidalcea calycosa subsp. calycosa Rimo Bacigalupi and L. R. Heckard, and Peter Rubtzoff 1967-8-30 9314 Sonoma se Forestville (near eastern end of Templeman Road, Pitkin Marsh); Pitkin Marsh, se of Forestville 45 Comment
  UC496409  Sidalcea diploscypha Merle Randall 1930-6-9 Sonoma Cazadero Comment
  UC108867  Sidalcea diploscypha Katharine Brandegee 1905-6-8 Sonoma bet Santa Rosa Sevastopol; bet Santa Rosa and Sevastopol Comment
  SEINET4854003  Sidalcea malviflora subsp. laciniata C. Leo Hitchcock 1952-6-4 19582 Sonoma About 2 miles east of Sebastopol on road to Petaluma. Comment
  UC353855  Sidalcea oregana subsp. valida Milo S. Baker 1928-6-29 3203 b Sonoma Kenwood Marsh along Hiway Comment
  UC972134  Silene californica Helen K. Sharsmith 1952-6-18 4131 Sonoma 0.8 mi w of junction of Pine-Flat-Middletown road with Socrates Mine Road (Mayacamas Range); Inner North Coast Ranges, Mayacamas Range 914 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
  CAS-BOT-BC5808  Silene scouleri subsp. grandis Alice Eastwood 1900-7-4 s.n. Sonoma Bodega Point Comment
  UC8454  Silene scouleri subsp. grandis Alice Eastwood 1900-7-4 Sonoma Bodega Point; ; Bodega Point, Sonoma Co. Comment
  JEPS108631  Sisyrinchium bellum W. Roderick Sonoma NW of Glen Ellen Comment
  JEPS64293  Sisyrinchium californicum Lucille Roush 1928-4-15 Sonoma near Russian River; Fort Ross Comment
  UCSB913  Sisyrinchium californicum Kamb, Peter; Chisaki, Francia 1950-6-16 Sonoma Pitkin Marsh; northwest of Sebastopol; 1 mile north of Sousa Corners 60 Comment
  UC429242  Smilacina racemosa H. P. Chandler 1907-4-21 7529 Sonoma road fr. Glen Ellen to Oakville Comment
  UCD165014  Solanum Peter Rubtzoff 1974-10-20 7939 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  UC424779  Solanum umbelliferum Milo S. Baker 1929-4-14 3489 b Sonoma Jensen's Ranch Comment
  CAS-BOT-BC365585  Solidago elongata Peter Rubtzoff 1951-9-16 750 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh Comment
  UCD136065  Solidago spathulata G. F. Hrusa; G. L. stebbins, J. McCaskill 1993-9-14 11419 Sonoma along Cavedale Road approximately 2.7 miles east of Highway 12. 400 Comment
  CAS-BOT-BC173670  Soliva sessilis Peter Rubtzoff 1963-5-26 5137 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC173701  Soliva sessilis Peter Rubtzoff 1960-5-18 4363 Sonoma Bodega Head Marsh. Comment
  CAS-BOT-BC365956  Soliva sessilis G. DeNevers 1981-4-11 688 Sonoma Pepperwood Ranch. Lower orchard Comment
  CAS-BOT-BC365958  Soliva sessilis Peter Rubtzoff 1951-6-16 242 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh Comment
  CAS-BOT-BC365959  Soliva sessilis Peter Rubtzoff 1952-6-10 1204 Sonoma Northeast slopes of Fitch Mtn., near Healdsburg Comment
  UCD148378  Sonchus Peter Rubtzoff 1955-9-24 2153 Sonoma Duncans Mills Marsh. Comment
  CAS-BOT-BC236587  Sorghum halepense Mary P. Wells 1984-5-21 264 Sonoma Friends House grounds, Rincon Valley, Santa Rosa Comment
  UCD167343  Sorghum halepense James Neilson 1981-5-28 4034 Sonoma Mayacmas Mountains.1/2 mi. west Big Geysers. (Location information obtained from Neilson 4033 indicates that the location is at lookout point along road fill over culvert 1/2 mi. west Big Geysers. Exact location unknown. Coordinates estimated by label maker.) Comment
  UCR71885  Sparganium emersum subsp. emersum Peter Rubtzoff 1972-6-24 6790 Sonoma Atascadero Creek Marsh 28 Comment
  CAS-BOT-BC390043  Spergula arvensis G. DeNevers 1981-3-14 536 Sonoma Pepperwood Ranch. Pippindale farm, 7 mi. NE of Santa Rosa, near Mark West lodge. Along Leslie road Comment
  CAS-BOT-BC390046  Spergula arvensis Peter Rubtzoff 1952-3-23 880 Sonoma Pitkin Marsh, near Forestville. Area separating the western branch of the Upper Marsh from the eastern Comment
  CAS-BOT-BC390048  Spergula arvensis Barbara Stuart Dows 1907-7-12 s.n. Sonoma Sebastopol Comment
  CAS-BOT-BC390049  Spergula arvensis Ella Dales Cantelow 1940-4-20 3446 Sonoma N. of Ft. Ross. Hy I Comment
  CAS-BOT-BC258926  Spergularia Peter Rubtzoff 1965-8-29 5625 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC390731  Spergularia rubra John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary P. Wells 1981-5-14 53938 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles northeast of Penngrove on the west slope of Sonoma Mountain 457 Comment
  CAS-BOT-BC390732  Spergularia rubra Lewis S. Rose 1962-8-6 s.n. Sonoma Bodega Comment
  CAS-BOT-BC500695  Stachys Peter Rubtzoff 1954-8-13 1708 Sonoma Bodega Head Marsh Comment
  JEPS87220  Stachys ajugoides Jack and Betty Guggolz 1992-6-22 1320 Sonoma cattle pasture se Knowles Corner 36 Comment
  RSA179722  Stachys ajugoides J. T. Howell 1930-6-8 5228 Sonoma Bodega Road, 4 miles east of Valley Ford. Comment
  SEINET9365554  Stachys rigida Unknown 1994-5-25 Sonoma Bodega Head East Comment
  SEINET9340248  Stachys rigida var. quercetorum John Nelson, Wnek, Richard 2000-3-7 21352 Sonoma Guerneville Comment
  CAS-BOT-BC366880  Stachys stricta Greg de Nevers 1993-8-8 10485 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. At marsh above Skovie, at base of Telegraph Hill. 400 Comment
  CAS-BOT-BC251305  Stellaria borealis subsp. sitchana Peter Rubtzoff 1955-4-30 1809 Sonoma Forestville Marsh. Comment
  CAS-BOT-BC251257  Stellaria media Peter Rubtzoff 1958-8-31 3951 Sonoma Atascadero Creek Marsh. Comment
  CAS-BOT-BC394958  Stellaria media Walter Knight; Irja Knight 1963-8-13 274 Sonoma Horseshoe Cove Comment
  CAS-BOT-BC397763  Stellaria media Mary P. Wells 1990-4-9 1041 Sonoma Santa Rosa; Yard in Rincon Valley Comment
  CAS-BOT-BC397766  Stellaria media John H. Thomas 1976-6-15 18310 Sonoma Southern end of Sea Ranch, northwestern part of county, about 7 miles south of Gualala. 30 Comment
  CAS-BOT-BC397768  Stellaria media G. DeNevers 1981-3-30 582 Sonoma Pepperwood Ranch; Garrison House Comment
  CAS-BOT-BC397769  Stellaria media G. DeNevers 1981-4-2 614 Sonoma Pepperwood Ranch; Along Studio Road at the Mesa. Comment
  HSC4280  Stellaria media S. N. Wiemeyer 1962-4-20 17 Sonoma 0.75 mi. E of County Hospital along Chanate Rd. 122 Comment
  CAS-BOT-BC405137  Stellaria nitens G. DeNevers 1982-2-21 1913 Sonoma Hill side above first serpentine road cut, end of canyon. Pine Flat Road. Blm. Comment
  UCR254832  Stephanomeria virgata Greg de Nevers 1997-8-17 11076 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, Santa Rosa, Oak Hill Ranch 400 Comment
  CAS-BOT-BC375753  Stephanomeria virgata Walter Knight; Irja Knight 1963-9-1 154 Sonoma Sulphur Creek - 3 mi. E. Cloverdale Comment
  RSA74053  Streptanthus barbiger Milo S. Baker 1947-5-30 11775 Sonoma Located 2 miles NE of Occidental along Harrison Grade. Comment
  UCD168162  Streptanthus brachiatus James Neilson 1977-3-28 3856 Sonoma Mayacmas Mountains, Location 8, US Geothermal 1. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UCR67077  Streptanthus brachiatus subsp. brachiatus L. F. LaPre 1986-7-29 s.n. Sonoma Socrates Mine, c. 9 mi ENE of Geyserville 976 Comment
  UCR71159  Streptanthus brachiatus subsp. brachiatus L. F. LaPre 1985-6-25 s.n. Sonoma Vicinity of Socrates Mine, west of Pine Flats Road. Comment
  UCD151165  Streptanthus glandulosus James A. Neilson Jr. 1974-3-27 3018 Sonoma Mayacmas Mountains. Big Geysers. (Elevation estimated using Google Earth by label maker.) 548 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
  UC10885  Streptanthus glandulosus subsp. glandulosus H. N. Bolander April 1864 3944 Sonoma at the Geysers Comment
  UC72933  Streptanthus glandulosus subsp. glandulosus Milo S. Baker 1898-6-12 646 Sonoma Geyer Road Geyser Canyon Comment
  UC1492782  Streptanthus glandulosus subsp. hoffmanii Freed W. Hoffman 1947-4-10 1056 Sonoma near hot springs; North Coast Ranges, Big Geysers Comment
  UC1492789  Streptanthus glandulosus subsp. hoffmanii Freed W. Hoffman June 1950 3368 Sonoma roadside <from> Cazadero to Trospers Resort; North Coast Ranges Comment
  UC1492790  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1950-5-24 3362 Sonoma near Nylander's house (near Rocky Mountain); North Coast Ranges, East Austin Creek Comment
  UC985966  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1948-6-16 2346 Sonoma Dorr's Cabin North Coast Ranges, upper East Austin Creek Comment
  UC483689  Streptanthus glandulosus subsp. secundus Milo S. Baker 1932-5-8 5916 Sonoma 5 mi n Ft. Ross; Salt Point Comment
  UC985969  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1948-8-18 3208 Sonoma Cazadero Rd between Guerneville and Cazadero; North Coast Ranges Comment
  UCD167451  Streptanthus morrisonii James Neilson 1983-6-13 4099 Sonoma East Austin Creek. (On the same date Neilson was in the upper reaches of East Austin Creek. Exact location unknown. Coordinates estimated by label maker.) Comment
  UC1751202  Streptanthus morrisonii subsp. morrisonii Freed W. Hoffman 1946-8-29 1024 Sonoma Red Slide, Bargeman Creek North Coast Ranges Comment
  UC956605  Streptanthus tortuosus Freed W. Hoffman 1948-9-19 2374 Sonoma n-s ridge on Big Geysers rd from Healdsburg about 1 mi w The Geysers; North Coast Ranges Comment
  UCD138358  Stuckenia pectinata E. D. Mathews 1931-9-8 s.n. Sonoma Exact location unknown. Comment
  CAS-BOT-BC257963  Symphoricarpos Peter Rubtzoff 1967-9-2 5877 Sonoma Freestone Marsh. Comment
  UCR254879  Symphyotrichum Peter Rubtzoff 1971-8-23 6649 Sonoma North Coast Range, Laguna [Lake], Chileno Valley 69 Comment
  CAS-BOT-BC354313  Symphyotrichum Peter Rubtzoff 1971-8-23 6649 Sonoma Laguna, Chileno Valley. Comment
  CAS-BOT-BC97816  Symphyotrichum chilense Peter Rubtzoff 1958-8-9 3826 Sonoma Laguna de Santa Rosa north of Sebastopol (nr. Occidental Road) Comment
  CAS-BOT-BC97828  Symphyotrichum chilense J. W. C. 1880-9-1 s.n. Sonoma Petaluma Comment
  CAS-BOT-BC97833  Symphyotrichum chilense Walter Knight; Irja Knight 1963-9-25 118 Sonoma [Coffy] Coffee Lane, Coddington Comment
  CAS-BOT-BC98565  Symphyotrichum lentum F. G. Krauss 1893-10-8 s.n. Sonoma Mountains, Krauss Ranch Comment
  UC29899  Symphyotrichum spathulatum J. Burtt Davy 1897-9-19 4032 Sonoma near Petaluma Comment
  CAS-BOT-BC99377  Symphyotrichum subspicatum Peter Rubtzoff 1951-9-15 768 Sonoma Lower part of the Upper Marsh; Pitkin Marsh, near Forestville Comment
  UC29833  Symphyotrichum subspicatum Harley P. Chandler 1900-5-25 698 Sonoma Bodega Bay Comment
  CAS-BOT-BC157679  Taraxacum Peter Rubtzoff 1974-4-17 7367 Sonoma Upper Green Valley Marsh area. 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
  CHSC63920  Taraxia ovata John Hale 1990-4-10 17 Sonoma 610 m. N. of Stillwater Cove. Meadow. 24 Comment
  HSC46827  Teesdalia coronopifolia Chas F. Quibell 1977-3-18 1393 Sonoma SW corner of Fulton and Piner Rds., W Santa Rosa, between Piner Elementary School and the church on Fulton Rd. Comment
  UCR222557  Tellima grandiflora George K. Helmkamp, E. A. Helmkamp 2010-6-5 16240 Sonoma North Coast Ranges, River Rd., 9.6 miles west of its junction with US-101, 4.25 mi. ENE (83 deg. ) of Guerneville on slope above the Russian River 12 Comment
  CAS-BOT-BC399884  Thalictrum polycarpum Peter Rubtzoff 1959-6-13 4140 Sonoma Willow Creek Marsh Comment
  POM188484  Thalictrum polycarpum Marcus E. Jones 1931-7-5 28900 Sonoma West of Cloverdale. Comment
  CDA27876  Thermopsis californica var. californica T. C. Fuller 1958-5-24 3993 Sonoma Pitkin Marsh, near Forestville. 0 Comment
  UC1127049  Thysanocarpus curvipes E. Armstrong 1934-3-26 920 Sonoma 2 mi w Camp Meeker; Sebastopol Quadrangle 121 Comment
  CAS-BOT-BC66820  Thysanocarpus curvipes A. A. Heller; H. E. Brown 1902-4-14 5287 Sonoma Near Mark West Springs. Comment
  RSA0049971  Thysanocarpus radians Peter H. Raven 1913-4-6 1602 Sonoma Lower slopes of Rincon River. 4 miles from Santa Rosa to Sonoma. 243 Comment
  JEPS49745  Tiarella trifoliata var. unifoliata M. E. and E. Van E. Ferguson Jun 8 1919-Jun 10 1919 Sonoma Russian River near Guerneville; Russian River Comment
  SBBG2854  Tiarella trifoliata var. unifoliata H. and M. Dearing 1939-5-15 3384 Sonoma N of Fort Ross Comment
  UCD160971  Torilis arvensis James A. Neilson Jr. 1975-7-8 3412 Sonoma Mayacmas Mountains. Socrates Mine Road, near summit. (Elevation and coordinates estimated by label maker.) 975 Comment
  RSA47813  Torilis nodosa Roxana S. Ferris, Laura Lorraine 1948-6-9 s.n. Sonoma Franz Valley Road ca. 3/4 mi. from Mark West Road Comment
  RSA789605  Torreya californica Richard W. Spjut, Peter Baye 2010-6-21 16713 Sonoma Fuller Creek near junction with High-Low Road and South Branch Road, east of Annapolis Road. 91 Comment
  SBBG34159  Torreya californica L. M. Srivastava 1957-11-1 22 Sonoma Hwy 1, ca. 100 yards S of Fort Ross 30 Comment
  UCD135170  Torreya californica A. T. Leiser 1969-6-25 s.n. Sonoma Just So. Ft. Ross Park, Highway 1. Comment
  CAS-BOT-BC499109  Toxicoscordion fontanum Ann Howald 2015-4-13 3341 Sonoma Inner North Coast Ranges: Annadel State Park, Ledson Marsh, south shore, c. 300 ft N of intersection Pig Flat and Marsh Trails 363 Comment
  JEPS128177  Toxicoscordion fremontii Roger Raiche 2001-5-17 024 .01 Sonoma The Cedars. Gualala River, Wheatfield Fork watershed. Comment
  JEPS77869  Tragopogon porrifolius Robert M. Lloyd 1965-5-8 3632 Sonoma corner of Pressley Rd and Sonoma Mt. Road (w of Glen Ellen) Comment
  CAS-BOT-BC519551  Triantha occidentalis subsp. occidentalis Peter Rubtzoff 1951-7-28 566 Sonoma Sonoma Comment
  CAS-BOT-BC519552  Triantha occidentalis subsp. occidentalis Peter Rubtzoff 1951-7-14 466 Sonoma Sonoma Comment
  UCD163995  Trichostema Peter Rubtzoff; Nancy Harrison 1977-8-26 9117 Sonoma False Lake Meadow area, Annadel State Park. Comment
  UC157931  Trichostema laxum Milo S. Baker 1898-6-12 675 Sonoma Geyser Canyon Comment
  CAS-BOT-BC173535  Trifolium Peter Rubtzoff 1974-6-2 7511 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC173639  Trifolium Peter Rubtzoff 1974-5-26 s.n. Sonoma Vernal pool, 4.25 miles west of Glen Ellen on Bennett Valley Road. Comment
  JEPS128277  Trifolium Roger Raiche 2005-4-22 013 .05 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  RSA784986  Trifolium Peter Rubtzoff 1974-4-17 7375 Sonoma Upper Green Valley Marsh. 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-BC173638  Trifolium Peter Rubtzoff 1974-5-19 7442 Sonoma Laguna de Santa Rosa east of Graton, between Occidental and Guerneville roads. Comment
  UCSC010635  Trifolium R. Morgan 2014-5-12 5637 d Sonoma Bodega Head Comment
  JEPS117086  Trifolium albopurpureum Peter Warner 2010-4-15 131 Sonoma Jenner Headlands, Sonoma Land Trust property, approx. 250 m E of primary access road (Willig Ave. extension), approx. 0.8 km N of Jenner village, in ultramafic grassland, near power line overhead. Comment
  UCR255743  Trifolium bifidum var. bifidum Greg de Nevers 1997-4-16 10940 Sonoma North Coast Range, Cavedale Road 152 Comment
  UCD165135  Trifolium bifidum var. decipiens Peter Rubtzoff 1974-5-18 7418 Sonoma Todd Road, 1.4 mi from Hwy 116 and 0.6 mi from Llano Road. Comment
  SEINET12166393  Trifolium campestre H. K. Wagnon 1989-1 1891 Sonoma Jack London State Park Comment
  UC16467  Trifolium depauperatum var. depauperatum Michener and Bioletti 1892-5-1 Sonoma Schellville Comment
  UC16475  Trifolium depauperatum var. depauperatum W. H. Brewer 1862-4-18 964 Sonoma Sonoma Valley Comment
  UCSC005278  Trifolium depauperatum var. hydrophilum Randall Morgan 1995-5-18 2617 Sonoma Santa Rosa, Stony Point Road, across from Yuba Drive 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
  UCD151187  Trifolium fucatum James A. Neilson Jr. 1974-4-17 2844 Sonoma Mayacmas Mountains. Big Geysers. (Elevation estimated using Google Earth by label maker.) 548 Comment
  UCD165150  Trifolium gracilentum Peter Rubtzoff 1974-5-18 7428 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  UCD109771  Trifolium hirtum Frederica Bowcutt 1994-6-12 1854 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 75 yards, N of Adobe Canyon Road up Pony Gate Trail. 426 Comment
  UCSC009217  Trifolium hydrophilum Randall Morgan 1998-5-25 2743 Sonoma Viansa Vineyard on west side of Highway 121, about 2 miles south of Highway 116, and approximately 6 miles north of Sears Point Comment
  UC16646  Trifolium microdon Harley P. Chandler 1900-5-25 682 Sonoma Bodega Comment
  UCD161295  Trifolium microdon James A Neilson Jr.; Teresa A. Sholars 1976-5-10 3689 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
  CDA31340  Trifolium repens D. G. Kelch, Ed Biffin 2010-5-3 10 .212 Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  UCSC005675  Trifolium stenophyllum Randall Morgan 1995-5-18 2610 Sonoma 6+ miles up Coleman Valley Road from Occidental Comment
  UCD147006  Trifolium tomentosum Robert E. Preston 2011-4-28 2851 Sonoma Sonoma, in vacant lot N of MacArthur St, between 4th St and Hayes St. 21 Comment
  SEINET6935458  Trifolium variegatum W. P. Vestal, A. G. Vestal 1947-5-13 s.n. Sonoma Ca. 7.8 miles south-southeast of Annapolis. Comment
  UC165540  Trifolium willdenovii H. P. Chandler 1907-4-21 1723 Sonoma rd from Glen Ellen to Oakville Comment
  UCD109910  Trifolium wormskioldii Frederica Bowcutt 1984-6-23 439 Sonoma Salt Point State Park. Approx. 20 miles N of Jenner and 80 miles S of Fort Bragg on the Sonoma County coast. North of Gerstle Cove ca. 1/2 mile. 15 Comment
  CAS-BOT-BC451945  Triglochin maritima Lewis S. Rose 1964-6-3 64055 Sonoma N. end of Bodega Bay 1 Comment
  SEINET12051461  Trillium albidum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -263 Sonoma ca 10 mi from Warm Springs Dam enroute to Healdsburg on Old Stewart Point-Skaggs Springs Road 150 Comment
  CAS-BOT-BC519100  Trillium chloropetalum var. chloropetalum Greg de Nevers 1993-3-24 10332 Sonoma Wimar Canyon, 3450 Franz Valley, Pepperwood Ranch Natural Preserve 304 Comment
  JEPS44411  Triphysaria eriantha subsp. eriantha Lewis S. Rose 1965-4-4 65018 Sonoma Sonoma 24 Comment
  UC886476  Triphysaria versicolor subsp. faucibarbata A. A. Heller 1938-5-14 15090 Sonoma just e Bodega Comment
  CDA41893  Triphysaria versicolor subsp. faucibarbata T. C. Fuller 1967-5-19 15876 Sonoma Junction of Petaluma-Valley Ford Rd. and Hwy. 1, 1 mile southeast of Valley Ford. 0 Comment
  UCD123427  Triphysaria versicolor subsp. versicolor Frederica Bowcutt 1984-6-23 455 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, north of Gerstle Cove about 1/3 mile. 15 Comment
  UC1133276  Trisetum canescens H. S. Yates 1936-5-16 5609 Sonoma 2 mi se Forestville; Pitkin Marsh, Sebastopol Quad. 30 Comment
  UCD93496  Trisetum canescens Beecher Crampton 1955-6-17 2931 Sonoma Sonoma County, 3.3 miles west of Forestville, along State Highway 12. Comment
  CAS-BOT-BC200111  Trisetum canescens G. DeNevers 1981-5-23 1303 Sonoma On Devils Kitchen Hill Comment
  RSA121006  Tristagma uniflorum Peter H. Raven 1950-4-6 1598 Sonoma Vernal Flats, Santa Rosa to Rincon Ridge. 183 Comment
  JEPS64193  Triteleia hyacinthina Eleanor Armstrong 1932-5-25 512 Sonoma near Mark West Springs 152 Comment
  CAS-BOT-BC522356  Triteleia hyacinthina Peter Rubtzoff 1959-5-31 4087 Sonoma Freestone Marsh; Sonoma County Marshes Comment
  CAS-BOT-BC522358  Triteleia hyacinthina Peter Rubtzoff 1971-5-8 6439 Sonoma Eastern foothills of Sonoma Mts. on Sobre Vista Road 0.9 mile west of Arnold Drive Comment
  CAS-BOT-BC522359  Triteleia hyacinthina Peter Rubtzoff 1974-5-19 7447 Sonoma Todd Road 1.4 mile from Hwy. 116 and 0.6 mile from Llano Road Comment
  CAS-BOT-BC527031  Triteleia laxa Peter Rubtzoff; Nancy Harrison 1974-7-13 7674 Sonoma Upper Green Valley Marsh Comment
  CAS-BOT-BC527032  Triteleia laxa Peter Rubtzoff 1952-6-10 1199 Sonoma Northeast slopes of Fitch Mountain, near Healdsburg Comment
  RSA173356  Triteleia laxa Walter Knight 1965-6-5 1116 Sonoma McDowell Road 1/2 mile from Casa Grande Road. Petaluma Comment
  UC565400  Triteleia peduncularis G. Thomas Robbins 1937-6-5 216 Sonoma about ten mi w Santa Rosa (Vine Hill region, Pitkin Ranch); Vine Hill region, Pitkin Ranch Comment
  RSA540084  Triteleia tubergenii Peter Rubtzoff, Rimo C. Bacigalupi 1971-6-10 6526 Sonoma South side of W Railroad Ave between Hwy 101 and Stony Point Road Comment
  CAS-BOT-BC200493  Triticum aestivum Peter H. Raven 1950-4-6 1594 Sonoma Santa Rosa to Rincon Ridge 60 Comment
  CAS-BOT-BC80204  Tsuga heterophylla John Madison; Mary P. Wells; Mary Rhyne 1985-11-4 691 Sonoma Forest about 1/3 mile south of the Gualala River Comment
  RSA216183  Typha latifolia Peter Rubtzoff 1960-9-14 4537 Sonoma Laguna de Santa Rosa east of Graton below Occidental and Guerneville roads. Comment
  CHSC997  Ulex europaeus M. Anthony 1953-3-9 Sonoma Comment
  POM21294  Ulex europaeus A. A. Heller, H. E. Brown 1902-3-22 7308 Sonoma Among Redwood Trees W of Sebastopol Comment
  CAS-BOT-BC91280  Umbellularia californica Walter Knight; Irja Knight 1963-9-1 266 Sonoma Asti. Comment
  RSA785729  Umbellularia californica Carrie A. Herd 1982-3-9 13 Sonoma Crane Creek Regional Park Comment
  UCD137872  Umbellularia californica C. Winstrom 1996-5-26 30 Sonoma Healdsburg, 1601 Dry Creek Road. 48 Comment
  CAS-BOT-BC403980  Urtica dioica subsp. gracilis Peter Rubtzoff 1958-9-1 3965 Sonoma Vacation Beach, near Guerneville. Sandy bank of Russian River Comment
  CAS-BOT-BC403991  Urtica dioica subsp. gracilis Marcus E. Jones 1882-7-17 3483 Sonoma Duncan's Mills Comment
  CAS-BOT-BC403992  Urtica dioica subsp. gracilis Rimo Bacigalupi 1926-4-30 1400 Sonoma Cazadero Comment
  SEINET177097  Urtica dioica subsp. holosericea Marcus E. Jones 1882-7-17 3488 Sonoma Duncan Mills. Comment
  CAS-BOT-BC404245  Urtica dioica subsp. holosericea Peter Rubtzoff 1954-8-13 1717 Sonoma Bodega Head Marsh Comment
  UC848754  Urtica urens Leo Koch 1939-4-23 590 Sonoma in Game Refuge off Petaluma Hill Road (North Bay); , Game Refuge Comment
  CAS-BOT-BC193383  Vaccinium ovatum H. L. Mason 1928-4-8 4289 a Sonoma Two miles north of Fort Ross. Comment
  CAS-BOT-BC193386  Vaccinium ovatum Walter Knight; Irja Knight 1964-2-16 809 Sonoma Mill Creek Road west of Healdsburg Comment
  UC754368  Vaccinium parvifolium Ira L. Wiggins 1948-3-21 11617 Sonoma At western margin of Kruse Rhododendron State Park Comment
  CDA24422  Vancouveria planipetala G. D. Barbe 1982-5-27 3624 Sonoma 3.6 miles east of Stewarts Point (Highway 1), on Skaggs Spring Road. 0 Comment
  CAS-BOT-BC376393  Verbascum Greg de Nevers 1993-8-12 10488 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Garrison Canyon. 457 Comment
  CDA15999  Verbascum bombyciferum G. F. Hrusa, M. Gillogly 2000-7-26 15679 Sonoma North Coast Biodiversity Arena; Dry bed of Leslie Creek, 1/4 mi. above confluence with Mark West Ck. Sheet 1 of 2. Comment
  CDA16001  Verbascum bombyciferum G. F. Hrusa, M. Gillogly 2000-7-26 15681 Sonoma North Coast Biodiversity Arena; Dry bed of Leslie Creek, 1/4 mi. above confluence with Mark West Ck. Sheet 1 of 2. Comment
  CDA16002  Verbascum bombyciferum G. F. Hrusa, M. Gillogly 2000-7-26 15682 Sonoma North Coast Biodiversity Arena; Dry bed of Leslie Creek, 1/4 mi. above confluence with Mark West Ck. Sheet 1 of 2. Comment
  UCD124727  Verbascum thapsus K. Esau 1932-8-28 s.n. Sonoma Near Petrified Forest. Comment
  UC25159  Verbena lasiostachys var. scabrida J. Burtt Davy 1894-12-9 865 Sonoma Kenwood Comment
  CAS-BOT-BC157664  Veronica Peter Rubtzoff 1966-4-17 5680 Sonoma Laguna de Santa Rosa east of Graton, between Occidental and Guerneville roads. Comment
  RSA785447  Veronica Peter Rubtzoff 1969-6-14 6082 Sonoma 6.5 miles NE of Penngrove, on Lichau Road. 427 Comment
  CAS-BOT-BC166741  Veronica americana Peter Rubtzoff 1960-6-9 4481 Sonoma Laguna de Santa Rosa area northeast of Graton, near the Laguna Road. Comment
  RSA169299  Veronica americana L. S. Rose 1964-6-3 64050 Sonoma N end of Bodega Bay. 2 Comment
  RSA783734  Veronica americana Peter Rubtzoff 1960-6-9 4482 Sonoma Laguna de Santa Rosa area NE of Graton, near the Laguna Road. Comment
  UCD148401  Veronica americana Peter Rubtzoff 1958-6-1 3694 Sonoma Laguna de Santa Rosa, east of Cunningham (near Llano Road). Comment
  UCR255466  Veronica scutellata Ann Howald 2014-5-2 3002 Sonoma North Coast, c. 1.5 mi southeast of Del Mar Point 23 Comment
  POM312401  Veronica scutellata Malcolm A. Nobs, S. Galen Smith 1949-8-1 1107 Sonoma 2 miles east of Stewart's Pt on road to Geyserville. Comment
  RSA0021069  Veronica serpyllifolia Peter Rubtzoff 1971-5-8 6447 Sonoma Pitkin Marsh, near Forestville. Western border of the marsh near end of Templeman Road. Comment
  UC175500  Viburnum ellipticum Mrs. R. Kuhn 1914-5-5 3512 Sonoma El Cerrito Ranch Comment
  CAS-BOT-BC257966  Vicia Peter Rubtzoff 1974-5-25 7462 Sonoma Upper Green Valley Marsh area. Comment
  RSA799986  Vicia Peter Rubtzoff 1974-5-25 7462 Sonoma Upper Green Valley Marsh. Comment
  RSA29231  Vicia angustifolia Joseph A. Ewan 1935-5-13 9277 Sonoma 3 miles W of Santa Rosa on Sebastopol Road. Comment
  UCD38373  Vicia benghalensis Beecher Crampton 1955-4-4 2393 Sonoma Asti. Comment
  POM17347  Vicia gigantea A. A. Heller, H. E. Brown, A. H. Heller 1902-4-11 8210 Sonoma Bodega Bay Comment
  UCD108794  Vicia lutea Frederica Bowcutt 1994-6-12 1849 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 Creek, N of Adobe Canyon Rd. Trail head for Pony Gate Trail near kiosk and visitor center. 411 Comment
  UC424776  Vicia sativa Milo S. Baker 1929-4-17 3507 Sonoma near Steuben School House Comment
  UCR142293  Viola G. F. Pratt, C. Pierce 2003-5-15 s.n. Sonoma North Coast, Salt Point State Park 122 Comment
  CAS-BOT-BC536963  Viola lobata Mrs. C. A. Burlingame 1921-4-1 s.n. Sonoma Sonoma Comment
  UC19295  Viola lobata subsp. lobata W. H. Brewer 1864-1 3943 Sonoma near the Geysers (at Pine Mountain); Pine Mountain Comment
  UC35301  Viola ocellata J. Burtt Davy 1896-3-16 1680 Sonoma Cazadero Comment
  UCD110696  Viola ocellata Thomas Miller 1976-5-8 25 Sonoma Canyon 3 Creek. 1.1 miles N of River Road and Russian River. 106 Comment
  UC1742248  Viola rafinesquei Milo S. Baker Apr 1934 7705 Sonoma Brookside Garden Comment
  OBI5335  Viscum album C. W. Nichols & W. O. McCartney, W. O. McCartney 1966-1-17 s.n. Sonoma Backyard of 1220 Gravenstein hwy N at Ill Station rd, 1 mi N of Sebastopol Comment
  UCR55537  Viscum album William McCartney 1966-5-4 s.n. Sonoma Residential property, NW corner of Mills Station Road and Gravenstein Hwy North, Sebastopol 55 Comment
  CDA2767  Viscum album subsp. album C. W. Nichols, W. O. McCartney 1966-1-17 Sonoma Stanley Rose property, 1090 Gravenstein Highway North at Hill Station Road, 1 mile north of Sebastopol. 0 Comment
  CAS-BOT-BC290696  Vitis Peter Rubtzoff 1970-8-31 6350 Sonoma Forest Hills, 5.5 miles east of Guerneville, along Russian River. Comment
  CAS-BOT-BC203122  Vitis californica Wosnessensky No date on label s.n. Sonoma Ross Comment
  CAS-BOT-BC203134  Vitis californica A. A. Heller 1902-6-24 5760 Sonoma Near Burke's Sanitarium Comment
  POM117433  Vitis californica Marcus E. Jones 1924-4-25 s.n. Sonoma Cloverdale. Comment
  UC419014  Vitis californica H. E. and S. T. Parks 1930-8-20 693 Sonoma Maacama Creek Comment
  UCD58729  Vitis californica Eric Wada 2006-9-3 RR 4 Sonoma On Westside Road between Healdsburg and Guerneville. North bank of Russian River 18 Comment
  CAS-BOT-BC385058  Vitis californica G. de Nevers 1981-6-4 1434 Sonoma Pepperwood Ranch, by bridge south of the green gate Comment
  CDA15738  Vitis vinifera G. F. Hrusa 1998-6-14 14590 Sonoma Cultivated Plants; on Foote Ranch. Immed. N of corner Ida Clayton Rd. & Hwy. 128, Knights Valley. Comment
  CAS-BOT-BC199911  Vulpia bromoides Alice Eastwood 1915-6-29 s.n. Sonoma Bodega Point Comment
  CAS-BOT-BC199912  Vulpia bromoides Peter Rubtzoff 1960-5-22 4404 Sonoma Laguna de Santa Rosa area east of Graton (betw. Occidental & Guerneville rds.) Comment
  CAS-BOT-BC312705  Vulpia bromoides Peter Rubtzoff 1960-5-22 4404 Sonoma Laguna de Santa Rosa area east of Graton, between Occidental and Guerneville Roads. Comment
  SEINET197662 Image available Vulpia bromoides Leo Koch 23/47/0001 85564 Sonoma At Geysers in Sulfur Creek Canyon. Comment
  SEINET5424526  Vulpia bromoides V. Longozo 1999-4-19 s.n. Sonoma Bodega Bay Highway 0 Comment
  UCD93701  Vulpia microstachys K. Wagnon 1940-5-4 260 Sonoma Adobe Canyon. Comment
  CAS-BOT-BC183219  Vulpia microstachys var. ciliata John Thomas Howell 1943-4-18 17924 Sonoma Hills east of Agua Caliente Comment
  CAS-BOT-BC361284  Vulpia microstachys var. pauciflora Greg de Nevers 1997-4-24 10963 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  SD112861  Vulpia microstachys var. pauciflora Darley F. Howe 1963-5-23 3530 Sonoma 4 miles north of Cloverdale on #128 334 Comment
  POM206212  Vulpia myuros A. A. Heller 1902-4-4 5221 Sonoma Hills near Santa Rosa. Comment
  CAS-BOT-BC185827  Vulpia myuros subsp. megalura Milo S. Baker 1942-5-27 10383 Sonoma Summit between Napa Valley and Sonoma County Comment
  CAS-BOT-BC185835  Vulpia myuros subsp. megalura G. DeNevers 1981-5-15 1202 Sonoma Grazed shore of Hansel's Lake Comment
  UC1023601  Vulpia myuros var. hirsuta Virginia Bufford 1936-5-20 303 Sonoma 3 to 4 mi from Redwood Highway (Mark West Rd) Comment
  CAS-BOT-BC128704  Whipplea modesta Walter Knight; Irja Knight 1964-2-27 531 Sonoma Seaview <