Search Results — 2000 specimen records retrieved (1274 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
  CAS-BOT-BC383909  Abronia latifolia Mrs. H. C. Cantelow 1940-4-20 4023 Sonoma N. of Bay nr mouth of Salmon River Comment
  CHSC1074  Abronia maritima A. Small 1954-6-4 Sonoma Doran Park. Comment
  UC146774  Abronia umbellata Katharine Brandegee 1905-6-1 Sonoma Bodega Head Comment
  CAS-BOT-BC203225  Abutilon Peter Rubtzoff 1974-5-26 7497 Sonoma Todd Road 1.4 mi. from Hwy. 116 and 0.6 mi. from Llano Road Comment
  CAS-BOT-BC177032  Acacia dealbata Walter Knight; Irja Knight; John Thomas Howell 1984-10-12 s.n. Sonoma Trinity Road 457 Comment
  UC18123  Acer macrophyllum W. H. Brewer 1862-4-18 960 Sonoma near Sonoma; near Sonoma Comment
  SEINET12238549  Acer macrophyllum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -267 Sonoma ca 10 mi from Warm Springs Dam enroute to Healdsburg & US 101 on Old Stewart Point-Skaggs Springs Rd 150 Comment
  UCD117125  Acer negundo W. W. Robbins 1932-6-17 s.n. Sonoma Sonoma County. Comment
  CAS-BOT-BC336941  Acer negundo var. californicum Peter Rubtzoff 1970-8-31 6347 Sonoma In thicket along sandy bank of Russian River at Forest Hills, 5.5 mi. east of Guerneville Comment
  CAS-BOT-BC30091  Achillea millefolium John Thomas Howell 1955-8-6 30896 Sonoma Dunes at Bodega Head Comment
  UCSB50239  Achillea millefolium Gray, John 1976-5-1 Sonoma Bluff over Salmon Creek State Beach; T6N R11W 18 Comment
  UCD128307  Achillea millefolium Mary M. Hektner 1976-12-14 277 Sonoma onto Walk-On-Beach; unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  RSA176496  Achillea millefolium var. arenicola Roxana S. Ferris 1932-5-27 8254 Sonoma Bodega Bay. Comment
  CAS-BOT-BC166735  Achyrachaena mollis Peter Rubtzoff; H. A. Froebe 1971-5-30 6478 Sonoma Vernal pool, 4.25 miles west of Glen Ellen on Bennett Valley Road. Comment
  SEINET3523218 Image available Acmispon aestivalis A. A. Heller 1938-8-11 15321 Sonoma Knights Valley, Oak Belt of Upper Sonoran Life Zone Comment
  UCD104028  Acmispon brachycarpus Frederica Bowcutt 1994-6-25 1913 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 Grey Pine Trail about 1/2 way between Bushy Peak Trail and Meadow Trail. 530 Comment
  CAS-BOT-BC29847  Adenocaulon bicolor Volney Rattan 1877-6-17 s.n. Sonoma Guerneville Comment
  HSC98397  Adenostoma fasciculatum R. Spellenberg 1964-6-15 404 Sonoma 5 mi. W of The Geysers on road from Geyserville Comment
  JEPS46069  Adenostoma fasciculatum Eleanor Armstrong June 1932 526 Sonoma 4 mi. w. Camp Meeker (near Lake Nervana) 121 Comment
  JEPS128363  Adiantum capillus-veneris Roger Raiche 2000-5-27 112 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UC479340  Adiantum jordanii Marcus E. Jones, A. M. 1931-7-5 29165 Sonoma The Geysers Comment
  SEINET3096032 Image available Aesculus californica Royal D. Suttkus 1967-6-25 67- 29 -1 Sonoma 4.4 miles SE of Alexander Valley. Comment
  SEINET12237259  Aesculus californica F. H. Utech, Knight, W.; Knight, I. 1984-1 84 -074 Sonoma ca 4 mi NNW of Sonoma on Cavedale Road from junction with CA 12 107 Comment
  CAS-BOT-BC210115  Agoseris Peter Rubtzoff 1974-5-26 7470 Sonoma Vernal pool on Bennett Valley Road, 4.25 miles west of Glen Ellen. Comment
  RSA416393  Agoseris grandiflora Christopher Davidson 1977-6-20 6027 Sonoma Dry Cr. Rd. 8.6 mi. W of Geyserville. 91 Comment
  CAS-BOT-BC22788  Agoseris heterophylla G. DeNevers 1981-4-25 829 Sonoma Pepperwood Ranch, lower Pepperwood entrance Comment
  CAS-BOT-BC451164  Agrimonia gryposepala Greg de Nevers 1991-7-20 9765 Sonoma Ida Clayton Road, at the big spring about 7 miles from Hwy 128 609 Comment
  CAS-BOT-BC166693  Agrostis Peter Rubtzoff 1973-9-9 s.n. Sonoma Kenwood Marsh, 0.5 mi. S of Kenwood. Comment
  CAS-BOT-BC210001  Agrostis Peter Rubtzoff 1977-9-4 9130 Sonoma Cunningham Marsh area. Ca. 1 air mi. WSW of Cunningham Station Comment
  CAS-BOT-BC210014  Agrostis Peter Rubtzoff 1964-6-3 5342 Sonoma Bodega Bay Marsh. Comment
  CAS-BOT-BC361297  Agrostis Greg de Nevers 1997-5-8 10992 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa, on Oak Hill Ranch 457 Comment
  RSA785907  Agrostis Peter Rubtzoff 1977-9-4 9130 Sonoma Cunningham Marsh area. Ca 1 air mile WSW of Cunningham Station Comment
  UCD166333  Agrostis Peter Rubtzoff 1968-7-13 5918 Sonoma Upper Salmon Creek Marsh. Comment
  UCD51890  Agrostis densiflora Freed W. Hoffman 1944-5-27 1988 Sonoma Wright's Beach. Comment
  UCD51895  Agrostis densiflora Beecher Crampton 1957-7-22 4377 Sonoma 1.5 miles south of Stewart's Point. Comment
  CAS-BOT-BC126960  Agrostis exarata Greg de Nevers 1992-6-26 10208 Sonoma Pepperwood Natural Preserve. 3450 Franz Valley Road. Along Franz Creek. 91 Comment
  CAS-BOT-BC126963  Agrostis exarata Greg de Nevers 1992-6-25 10178 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. In marshy area at Rogers Homestead. 304 Comment
  CAS-BOT-BC126974  Agrostis exarata Peter Rubtzoff 1951-8-18 622 Sonoma Pitkin Marsh, near Forestville. Uppermost part of the western branch of the Upper Marsh. Comment
  UCD52539  Agrostis exarata Beecher Crampton 1957-7-11 4298 Sonoma Along State Hwy. 1, 1.4 miles SW of Bodega Bay. Comment
  RSA94460  Agrostis exarata Peter Rubtzoff 1951-8-18 622 Sonoma Uppermost part of the western branch of the upper , Sonoma County Comment
  UCD53512  Agrostis exarata P. B. Kennedy 1916-7-17 s.n. Sonoma Del Mar. 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
  UC963927  Agrostis hallii Milo S. Baker 1947-5-30 11774 Sonoma 2 mi nw Occidental (along Harrison's Grade) Comment
  SBBG115784  Agrostis hallii B. Crampton 1953-5-19 1298 Sonoma ca. 5 mi W of Calistoga on St Hwy 128, at Napa county line Comment
  SEINET7953066 Image available Agrostis microphylla Ayzik Solomeshch 2009-5-12 s.n. Sonoma Along Bennett Valley Road (between Santa Rosa and Glen Ellen) 189 Comment
  UC1146691  Agrostis microphylla Freed W. Hoffman 1947-4-10 1944 Sonoma The Geysers North Coast Ranges, The Geysers Comment
  UCD148468  Agrostis microphylla Peter Rubtzoff 1964-6-24 5368 Sonoma Lower Salmon Creek Marsh. Comment
  UCD53026  Agrostis microphylla Beecher Crampton 1959-6-16 5380 Sonoma 1 mile E of Occidental. Comment
  CAS-BOT-BC139117  Agrostis oregonensis Peter Rubtzoff 1951-8-5 605 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh. Comment
  UC174639  Agrostis oregonensis A. A. Heller 1902-6-26 Sonoma along creek at foot Mt. Hood; Sonoma Creek Comment
  CAS-BOT-BC138924  Agrostis pallens 1947-5-30 11774 Sonoma 2 miles northeast of Occidental along Harrison Grade. Comment
  UCD53168  Agrostis pallens A. A. Beetle; G. L. Stebbines Jr. 1942-6-4 3568 Sonoma 10.2 miles northeast of Santa Rosa on road to Calistoga. 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
  UCD53151  Agrostis pallens R. Tofsrud 1951-6-1 s.n. Sonoma summit of Oakville to Kenwood road. Comment
  RSA94090  Agrostis stolonifera J. T. Howell 1947-6-26 23302 Sonoma Cunningham Marsh Comment
  UCD53477  Agrostis stolonifera var. maritima P. B. Kennedy 1916-7-17 325 Sonoma Del Mar. Comment
  CAS-BOT-BC47989  Ailanthus altissima Catherine Best 1984-9-27 1049 Sonoma Grwoing along the road to the Buena Vista Winery, south of the town of Sonoma. Comment
  UCD165152  Aira caryophyllea Peter Rubtzoff 1974-5-18 7438 Sonoma Todd Road 1.4 mi. from Hwy. 116 and 0.6 mi. from Llano Rd. Comment
  CAS-BOT-BC138390  Aira caryophyllea var. capillaris L. R. Abrams 1918-4-27 6903 Sonoma Independence School near Healdsburg. Comment
  CAS-BOT-BC138393  Aira caryophyllea var. capillaris K. Wagnon 1939-4-20 180 Sonoma About 2 miles west of Vine Hill School along road. Comment
  UC903689  Aira elegantissima Milo S. Baker 1947-4-22 11691 Sonoma trail from residence of Gray ranch towards cliffs at summit; Hood Mt. 274 Comment
  CAS-BOT-BC138191  Aira praecox R. E. Frenkel 1964-6-23 611 Sonoma On California Highway 1, 2.3 miles south of Stewarts Point. 18 Comment
  UCD163994  Alisma Peter Rubtzoff 1977-8-12 9114 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  CAS-BOT-BC166765  Alisma lanceolatum Peter Rubtzoff 1966-7-4 s.n. Sonoma Laguna de Santa Rosa northeast of Graton, at end of Piner Road. Comment
  CAS-BOT-BC445329  Alisma lanceolatum Peter Rubtzoff 1959-6-20 4176 Sonoma Willow Creek Marsh. Comment
  CAS-BOT-BC445471  Alisma triviale Volney Rattan 1877-6-22 s.n. Sonoma Healdsburg Comment
  UC119966  Allium amplectens Michener and Bioletti 1897-5-8 2052 a Sonoma Hood's Peak Comment
  UCD84096  Allium amplectens Ayzik Solomeshch 2009-5-12 s.n. Sonoma Sonoma Regional Park. 37 Comment
  CAS-BOT-BC461068  Allium amplectens Alice Eastwood 1915-6-5 4607 Sonoma Petrified Forest Comment
  SEINET181187  Allium amplectens Bassett Maguire, R Maguire; C. B. Maguire 1934-6-7 15081 Sonoma 2 mi N of Geyserville Comment
  JEPS82409  Allium bolanderi Roger Raiche 1983-6-4 30374 Sonoma Sweetwater Springs Road 3.9 mi w West Side Highway (above Porter Creek, e of its intersection with John Gordon Creek, on s side of road); Porter Creek 121 Comment
  CAS-BOT-BC469105  Allium dichlamydeum John H. Thomas 1976-6-15 18323 Sonoma Southern end of Sea Ranch, northwestern part of county, about 7 miles south of Gualala 30 Comment
  UC1083345  Allium falcifolium Herbert L. Mason 1934-4-28 8074 Sonoma head of Dohrman Creek Dohrman's Creek, Jensen's Ranch Comment
  CAS-BOT-BC474311  Allium unifolium Peter Rubtzoff 1962-5-30 4852 Sonoma Freestone Marsh Comment
  CAS-BOT-BC251207  Alnus rhombifolia Peter Rubtzoff 1960-6-11 4504 Sonoma Laguna de Santa Rosa area, east of Graton, between Occidental and Guerneville roads. Comment
  RSA302701  Alnus rubra Jim Shevock 1971-1-30 624 Sonoma Along Russian River Comment
  RSA800594  Alnus rubra Peter Rubtzoff 1969-7-21 6118 Sonoma Duncan Mills Marsh. Comment
  UC847422  Alnus rubra Marcus E. Jones, A. M. 1882-7-17 3484 Sonoma Duncan's Mills Comment
  UCR244612  Alnus rubra Peter Rubtzoff 1973-10-10 7338 Sonoma Salmon Creek, 0.25 mi south of Freestone 64 Comment
  RSA129280  Alopecurus aequalis var. sonomensis H. S. Yates 1937-5-30 6555 Sonoma 1.5 miles E. of Occidental. 91 Comment
  UCD55892  Alopecurus aequalis var. sonomensis H. S. Yates 1937-5-30 6555 Sonoma 1.5 miles east of Occidental. 91 Comment
  UCD55893  Alopecurus aequalis var. sonomensis H. S. Yates 1936-5-16 5603 Sonoma 2 miles SE of Forestville. 30 Comment
  UCD150834  Alopecurus saccatus 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
  CAS-BOT-BC540839  Amaranthus Peter Rubtzoff 1973-8-20 7235 Sonoma Sonoma Creek bottom hear Agua Caliente Road crossing W of Agua Caliente Comment
  CAS-BOT-BC55540  Ambrosia psilostachya M. K. Bellue 1938-6-1 s.n. Sonoma Near Santa Rosa Comment
  POM180627  Amelanchier pallida J. T. Howell 1930-6-8 5287 Sonoma 8.5 miles N of Bodega Bay Comment
  CAS-BOT-BC135672  Amelanchier utahensis John Thomas Howell 1930-6-8 5287 Sonoma 8.5 miles n. of Bodega Bay Comment
  UC58118  Amelanchier utahensis A. A. Heller 1903-4-24 6617 Sonoma woods near Cazadero Comment
  UCD165772  Ammannia robusta Peter Rubtzoff 1973-8-27 7272 Sonoma Upper Green Valley Marsh area. Comment
  CAS-BOT-BC137885  Ammophila arenaria John H. Thomas 1976-6-17 18349 Sonoma Near northern end of Sea Ranch, northwestern part of Sonoma county, about 4 miles south of Gualala. Comment
  CAS-BOT-BC177228  Amorpha californica var. napensis Dr. W. B. Stephens s.n. Sonoma Near Calistoga west of Petrified Forest Comment
  CAS-BOT-BC177234  Amorpha californica var. napensis D. E. Breedlove 1980-6-27 44762 Sonoma Pepperwood Ranch W of Knights Valley Comment
  JEPS87225  Amorpha californica var. napensis Jack and Betty Guggolz 1992-5-9 1282 Sonoma 1/2 mi nw Buzzard Peak (ne of Santa Rosa) 271 Comment
  CAS-BOT-BC222273  Amsinckia Alice Eastwood; John Thomas Howell 1940-5-5 7871 Sonoma North end of Sonoma Mt. Comment
  CHSC21835  Amsinckia intermedia Robert A. Schlising 1962-3-31 2113 Sonoma In pastured field. Comment
  SBBG21166  Amsinckia spectabilis V. Haraden 1941-7-13 5 Sonoma Bodega Bay 15 Comment
  UC36576  Ancistrocarphus filagineus Edw. L. Greene 1892-4-30 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC137819  Andropogon glomeratus var. pumilus F. W. Hoffman 1943-6-17 s.n. Sonoma Guerneville. Comment
  SEINET10513944  Andropogon virginicus var. virginicus Harry S. Yates 1937-8-22 Yates 6865 Sonoma 2 miles southeast of Forestville. 30 Comment
  UCD127216  Angelica californica J. M. Tucker 1951-6-26 2139 Sonoma Near summit of range, road from Glen Ellen to Oakville. Comment
  UC479153  Angelica tomentosa Marcus E. Jones, A. M. 1931-7-5 29050 Sonoma w of Cloverdale Comment
  CDA38217  Angelica tomentosa T. C. Fuller 1957-9-24 406 -57 Sonoma Forestville. 0 Comment
  CAS-BOT-BC271432  Anisocarpus madioides G. DeNevers 1981-6-6 1463 Sonoma Woodland on N slope of Telegraph Hill, Pepperwood Ranch Comment
  CAS-BOT-BC271523  Anisocarpus madioides Edw. L. Greene 1894-6-14 s.n. Sonoma Knight's Valley Comment
  JEPS40363  Anisocarpus madioides M. E. and E. Van E. Ferguson Jun 8 1919-Jun 10 1919 243 Sonoma near Guerneville; Russian River Comment
  JEPS78467  Anisocarpus madioides Edward Lee 1936-6-7 2204 Sonoma McLaren Trail Bohemian Grove Comment
  CAS-BOT-BC271439  Anisocarpus madioides Peter Rubtzoff 1954-6-5 1454 Sonoma Hills south of Guerneville, Neeley Hill area Comment
  POM187931  Anthemis cotula Marcus E. Jones 1931-7-5 29120 Sonoma The Geysers. Comment
  RSA259578  Anthemis fuscata Thomas W. Nelson, James Nelson 1975-3-25 1751 Sonoma Asti, Growing as a weed in cultivated areas, vinyards Comment
  SEINET197667  Anthoxanthum aristatum L. Koch 1940-4-22 841 Sonoma Along Hwy 101 north of Windsor Comment
  UC978118  Anthoxanthum aristatum L. Beane and Lois E. James 1949-5-11 1942 Sonoma about halfway between Healdsburg and Windsor Comment
  UCD56145  Anthoxanthum aristatum Leo Koch 1940-4-22 841 Sonoma along Highway 101, north of Windsor. Comment
  SEINET8718117 Image available Anthoxanthum aristatum Leo Koch 1940-1 841 Sonoma Along Highway 101, north of Windsor. Comment
  CAS-BOT-BC280668  Anthoxanthum occidentale Peter Rubtzoff 1955-5-14 1844 Sonoma Duncans Mill Marsh. Area above the Marsh, along a western tributary of Orrs Creek Comment
  HSC8936  Anthoxanthum odoratum C. S. Chavez 1965-6-3 78 Sonoma 1 mi. E of Forestville on Hwy. 116 Comment
  RSA648061  Anthoxanthum odoratum Roos 1924-6-20 1524 Sonoma Between Santa Rosa and Sonoma. Comment
  UCD56233  Anthoxanthum odoratum G. F. Hrusa; G. L. Stebbins 1994-3-28 11707 Sonoma Fisk Mill Parking Area, Salt Point State Park. 7 Comment
  UCSB31778  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Townsend, J. 1977-5-30 Sonoma East side Old Cazadero Rd; 7 miles north-west of Guerneville 472 Comment
  CAS-BOT-BC447659  Aphanes arvensis Milo S. Baker 1927-3-4 20099 Sonoma Hillside back of Maple Glen Comment
  RSA0125531  Arabis blepharophylla A. A. Heller, H. E. Brown 1902-3-29 5178 Sonoma Bodega Bay. Comment
  UC6047  Arceuthobium campylopodum W. L. Jepson 1893-9-23 Sonoma first summit Mt. St. Helena Comment
  CHSC69206  Arctostaphylos James D. Jokerst 1988-3-15 3050 Sonoma Healdsburg. Comment
  RSA629203  Arctostaphylos Jon E. Keeley 1993-9-11 24780 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA629204  Arctostaphylos Jon E. Keeley 1993-9-11 24783 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA629226  Arctostaphylos Jon E. Keeley 1993-9-11 24796 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  UC549553  Arctostaphylos J. E. Adams 1934-3-28 719 Sonoma near Santa Rosa; Vine Hill Comment
  UC909870  Arctostaphylos J. E. Adams 1934-3-28 720 Sonoma near Santa Rosa; Vine Hill School Comment
  CAS-BOT-BC25321  Arctostaphylos bakeri Alice Eastwood; John Thomas Howell 1939-4-2 7376 Sonoma Near camp marker on road to Monte Rio Comment
  UC1614278  Arctostaphylos bakeri Charles M. Belshaw 1936-3-7 1552 Sonoma 1 mi ne of Occidental Comment
  UC518012  Arctostaphylos bakeri John Thomas Howell 1933-4-2 10956 Sonoma 2 mi e Occidental Comment
  UCD50406  Arctostaphylos bakeri E. Armstrong 1934-3-26 932 Sonoma 3 m. N. Camp Meeker. 91 Comment
  RSA622704  Arctostaphylos bakeri subsp. bakeri Jon E. Keeley, Melanie Baer-Keeley 1993-9-10 24698 Sonoma Along Bohemian Highway, 3.3 km north of Camp Meeker, between Occidental and Monte Rio. 90 Comment
  RSA622709  Arctostaphylos bakeri subsp. bakeri Jon E. Keeley, Melanie Baer-Keeley 1993-9-10 24707 Sonoma Along Bohemian Highway, 3.3 km north of Camp Meeker, between Occidental and Monte Rio. 90 Comment
  RSA339386  Arctostaphylos bakeri subsp. bakeri Roger Raiche 1985-9-29 RR 50899 Sonoma NE end of town of Healdsburg on Reservoir Hill 121 Comment
  SEINET12872780  Arctostaphylos canescens Unknown 2007-11-30 s.n. Sonoma Sonoma County Comment
  SEINET11991014  Arctostaphylos canescens W. Knight, Knight, I. 1983-1 4698 Sonoma Trinity Grade 305 Comment
  CAS-BOT-BC23970  Arctostaphylos canescens subsp. canescens Mrs. H. C. Cantelow 1940-4-6 3781 Sonoma On Triniti road w. of Boyes Spring Comment
  CDA30999  Arctostaphylos canescens subsp. canescens D. G. Kelch, Troy McGregor 2010-8-22 10 .348 Sonoma Nr Peak of Geyser Peak Rd. 0 Comment
  CAS-BOT-BC23897  Arctostaphylos canescens subsp. sonomensis John Thomas Howell 1933-4-2 10944 Sonoma Rincon Ridge, near Santa Rosa Comment
  UC1120076  Arctostaphylos canescens subsp. sonomensis A. E. Wieslander 1939-3-18 876 Sonoma s edge Rincon Hills; Santa Rosa Quadrangle 121 Comment
  UC1309673  Arctostaphylos canescens subsp. sonomensis C. M. Belshaw 1936-3-8 1577 Sonoma 3/4 mi se County Farm; Santa Rosa Quadrangle, Ricon Ridge 152 Comment
  CAS-BOT-BC23605  Arctostaphylos columbiana John Thomas Howell 1934-3-3 11744 Sonoma Between Fort Ross and Stewart's Point Comment
  RSA30114  Arctostaphylos columbiana E. K. Balls, Percy C. Everett, B. K. Balls 1953-10-9 18603 Sonoma 0.2 mi. NW of Ocean cove, Hwy 1 between Fort Ross and Point Arena; 5 mi. NW of Fort Ross 91 Comment
  UC424788  Arctostaphylos columbiana Milo S. Baker 1929-11-16 3728 b Sonoma hwy between Stewart's Point and Fort Ross Comment
  UC549636  Arctostaphylos columbiana J. E. Adams 1934-3-28 731 Sonoma seven mi n Fort Ross Comment
  CAS-BOT-BC24992  Arctostaphylos densiflora Milo S. Baker 1929-6-1 3572 Sonoma Near Vine Hill Schoolhouse. 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
  CAS-BOT-BC25020  Arctostaphylos densiflora H. F. Copeland 1933-3-18 A 5 Sonoma Near Vine Hill Schoolhouse. Comment
  LA42171  Arctostaphylos densiflora E. B. Copeland; 1933-3-18 A 5 Sonoma near Vine Hill School House Comment
  POM204431  Arctostaphylos densiflora J. T. Howell 1931-3-14 5770 Sonoma Vine Hill District Comment
  RSA177948  Arctostaphylos densiflora R. F. Thorne 1965-4-19 34320 Sonoma Vine Hill School Road 1/2 mile from Vine Hill Road. 76 Comment
  RSA88338  Arctostaphylos densiflora J. T. Howell 1933-4-2 10948 Sonoma 8 miles west of Santa Rosa Comment
  SBBG28862  Arctostaphylos densiflora H. F. Copeland 1933-3-18 A 5 Sonoma near Vine Hill School House Comment
  SBBG28870  Arctostaphylos densiflora J. Clausen 1933-3-26 743 Sonoma Vine Hill Schoolhouse, 10 mi W of Santa Rosa Comment
  UC1120151  Arctostaphylos densiflora A. E. Wieslander 1938-10-29 829 Sonoma Vine Hill Sebastapol Quadrangle Comment
  UC1614285  Arctostaphylos densiflora Charles M. Belshaw 1936-3-7 1568 Sonoma just e of Trenton (Forest Hill Road, turn off to Vine Hill School); Forest Hill Road Comment
  UC518978  Arctostaphylos densiflora J. Clausen 1933-3-26 743 Sonoma 10 mi w Santa Rosa (along road); Vine Hill Schoolhouse Comment
  UC549450  Arctostaphylos densiflora J. E. Adams 1934-3-28 723 Sonoma Vine Hill School Sta. Rosa Comment
  UC725333  Arctostaphylos densiflora A. A. Heller 1942-3-15 16398 Sonoma just w Vine Hill School Comment
  UC909875  Arctostaphylos densiflora J. E. Adams 1934-3-28 722 Sonoma Vine Hill School Sta. Rosa Comment
  CAS-BOT-BC361404  Arctostaphylos glandulosa Greg de Nevers 1994-3-18 10514 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, in Devil's Kitchen east of 3865 Franz Valley Rd. 457 Comment
  CDA11144  Arctostaphylos glandulosa G. F. Hrusa, G. L. Stebbins, D. Kelch 1993-11-22 11555 Sonoma North Coast Biodiversity Arena; First (unnamed) tributary of Sulphur Creek, immediately after Geysers Road crosses creek. Adjacent to old homestead (on 7.5' quad). Comment
  SEINET11993015  Arctostaphylos glandulosa W. Knight, Knight, I.; Edwards, S. W. 1985-1 5173 Sonoma 7.7 mi from W end of Sonoma Lake bridge on Rockpile Rd Comment
  CAS-BOT-BC24678  Arctostaphylos glandulosa subsp. glandulosa Walter Knight; Irja Knight 1963-12-27 472 Sonoma Summit Pine Flat Road. Comment
  CAS-BOT-BC24724  Arctostaphylos glandulosa subsp. glandulosa A. A. Heller; H. E. Brown 1902-3-31 5194 Sonoma Mt. Hood. Comment
  RSA631198  Arctostaphylos glandulosa subsp. glandulosa Jon E. Keeley 1993-9-11 24728 Sonoma Chaparral on south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  CAS-BOT-BC38987  Arctostaphylos manzanita Roger Raiche; Steve Edwards; Walter Knight; Irja Knight 1983-7-3 4753 Sonoma Near Cazadero, The Cedars, population samples from north end of 10 acre study area. 274 Comment
  OBI54985  Arctostaphylos manzanita H. F. Copeland 1933-3-18 A 14 Sonoma Vine Hill region on College Ave hwy, W of Santa Rosa Comment
  RSA633060  Arctostaphylos manzanita Jon E. Keeley 1993-9-11 24711 Sonoma Along Calistoga Road, 19 km southwest of Highway 128. 220 Comment
  UCD51969  Arctostaphylos manzanita Roman Gankin 1957-11-1 248 Sonoma Vine Hill School Road; 0.1 mile east of junction with Vine Hill Road; ca. 10 miles west of Santa Rosa. Comment
  SEINET11984822  Arctostaphylos manzanita R. Gankin, Hildreth, W. R. 1967-1 1067 Sonoma Vine Hill School Rd, ca 0.5 mi E of Vine Hill Rd Comment
  SEINET11987348  Arctostaphylos manzanita W. Knight, Knight, I. 1981-1 3962 Sonoma 2.3 mi up Cavedale Road from junction of CA 12 Comment
  SEINET11990992  Arctostaphylos manzanita W. Knight, Knight, I.; Raiche, R.; Edwards, S. 1983-1 4760 Sonoma The Cedars, near Cazadero on Twitchell Ranch 244 Comment
  SEINET11987123  Arctostaphylos manzanita subsp. bakeri S. W. Edwards 1981-1 s.n. Sonoma Green Hill Rd 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
  CAS-BOT-BC38913  Arctostaphylos manzanita subsp. elegans E. A. Goldman 1907-12-29 71 Sonoma Mt. St. Helena, southeast slope 1219 Comment
  CAS-BOT-BC38703  Arctostaphylos manzanita subsp. manzanita A. A. Heller; H. E. Brown 1902-3-20 5107 Sonoma Near Windsor Comment
  CAS-BOT-BC38706  Arctostaphylos manzanita subsp. manzanita G. DeNevers 1981-11-20 1883 Sonoma In the Garrison Canyon Comment
  CAS-BOT-BC38740  Arctostaphylos manzanita subsp. manzanita Walter Knight; Irja Knight 1964-2-16 808 Sonoma Mill Creek Rd. west of Healdsburg. Comment
  JEPS38656  Arctostaphylos manzanita subsp. manzanita W. L. Jepson 1914-9-19 6192 Sonoma Agua Caliente 42 Comment
  POM215749  Arctostaphylos manzanita subsp. manzanita Jens Clausen 1933-3-26 750 Sonoma Baker Ranch, Kenwood, Adobe Canyon. Comment
  RSA44376  Arctostaphylos manzanita subsp. manzanita L. S. Rose 1949-3-27 49016 Sonoma East of Beltane. 114 Comment
  RSA70838  Arctostaphylos manzanita subsp. manzanita J. T. Howell 1931-3-14 5773 Sonoma Vine Hill District Comment
  UC1388366  Arctostaphylos manzanita subsp. manzanita Freed W. Hoffman 1947-2-27 769 Sonoma near Guerneville; North Coast Ranges, Lone Mountain Farm Comment
  CAS-BOT-BC38690  Arctostaphylos manzanita subsp. manzanita John Thomas Howell 1939-1-15 14596 Sonoma Booth place, Knight's Valley Comment
  UC909864  Arctostaphylos nummularia J. E. Adams 1934-3-28 742 Sonoma s McNamees Store Comment
  HSC7717  Arctostaphylos stanfordiana S. N. Wiemeyer 1962-1-28 4 Sonoma 3/4 mi. E of County Hospital along Chanate Rd. 122 Comment
  JEPS83501  Arctostaphylos stanfordiana Jack and Betty Guggolz 1986-3-3 850 Sonoma above pond (on n side of Chamise Ridge Rd, off West Dry Creek Rd, w of Geyserville) Comment
  LA42281  Arctostaphylos stanfordiana H. F. Copeland; 1933-3-18 A 6 Sonoma Rincon Ridge, near Santa Rosa Comment
  RSA636808  Arctostaphylos stanfordiana Jon E. Keeley 1993-9-11 24743 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA636821  Arctostaphylos stanfordiana Jon E. Keeley 1993-9-11 24716 Sonoma Along Calistoga Road, 8.5 km southwest of Highway 128. 360 Comment
  UC1388314  Arctostaphylos stanfordiana Freed W. Hoffman 1946-8-20 867 Sonoma Trinity Rd at quarry; North Coast Ranges, western slope of Napa Range Comment
  UC424812  Arctostaphylos stanfordiana Milo S. Baker 1930-2-21 3878 a Sonoma Rincon Ridge Comment
  UC549547  Arctostaphylos stanfordiana J. E. Adams 1934-3-10 637 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC47337  Arctostaphylos stanfordiana Susan M. Smith 2004-2-9 s.n. Sonoma On St. Helena Rd., 3.5 mi. e. of Calistoga Rd. 487 Comment
  CAS-BOT-BC47347  Arctostaphylos stanfordiana Elsa G. Ruckert 1960-3-12 18 Sonoma 1.5 mi. from Highway 12 on n. Trinity Rd. 152 Comment
  SEINET11984942  Arctostaphylos stanfordiana Unknown 1966-1 686 Sonoma S of Hooker Canyon at point directly opposite canyon from Cavedale Rd, 3.1 mi E of junction of CA 12 Comment
  SEINET11987272  Arctostaphylos stanfordiana J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4103 Sonoma Strybing Arboretum, Golden Gate Park, San Francisco, orig. from Triniti Road 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
  SEINET11845326  Arctotheca calendula W. Knight, Knight, I. 1990-1 6588 Sonoma Petaluma, Lynch Creek Drive Comment
  CAS-BOT-BC400487  Aristolochia californica Peter Rubtzoff 1987-3-15 9756 Sonoma Russian River at Forest Hills, 5.5 mi. east of Guerneville. Off Summerhome Park Road 0.2 mi. from (west of) Forest Hills Road Comment
  POM165727  Aristolochia californica A. A. Heller, H. E. Brown 1902-3-12 s.n. Sonoma Sonoma Creek, eastern base of Mt. Hood. Comment
  SD130420  Aristolochia californica F. Almeda, G. DeNevers 1981-3-30 4875 Sonoma Pepperwood Ranch, along the road to the Garrison Cabin at the southwest sector of the ranch. Comment
  SEINET11262973  Aristolochia californica James Faro 1962-4-22 5 Sonoma South side of Lake Ralphine in Santa Rosa.; 0 Comment
  UC1135994  Aristolochia californica H. S. Yates 1934-4-22 3850 Sonoma 3 mi. e. Mark West; Calistoga Quad. Comment
  UC445109  Armeria maritima subsp. californica Katharine Brandegee June 1905 Sonoma Bodega Comment
  CAS-BOT-BC82562  Arnica discoidea Peter Rubtzoff 1951-8-25 669 Sonoma Forested hills southeast of Guerneville Comment
  CAS-BOT-BC172577  Artemisia douglasiana Peter Rubtzoff 1954-9-6 1743 Sonoma Guerneville Marsh. Comment
  UCD148374  Artemisia douglasiana Peter Rubtzoff 1955-10-12 2164 Sonoma Duncans Mills Marsh. Comment
  CAS-BOT-BC97232  Artemisia suksdorfii Mrs. Bailey 1930-4-1 s.n. Sonoma coast near Jenner Comment
  CAS-BOT-BC400606  Asarum caudatum Peter Rubtzoff 1951-11-24 839 Sonoma Pitkin Marsh, near Forestville. Northern half of Lower Marsh Comment
  UC72227  Asarum caudatum Milo S. Baker 1898-4-5 Sonoma Near Stewart's Point Comment
  UC1299580  Asclepias solanoana Freed W. Hoffman 1947-5-30 549 Sonoma Layton Mine; North Coast Ranges, Austin Creek Comment
  SEINET11718421  Aspidotis densa F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -244 Sonoma end of Stoetz Road 200 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-BC180464  Astragalus breweri Robert F. Hoover 1939-4-18 4038 Sonoma Occidental Comment
  UC82559  Astragalus clevelandii Edward Lee Greene 1883-8-22 Sonoma n side Mt. St. Helena Comment
  CAS-BOT-BC186819  Astragalus gambelianus G. DeNevers 1981-4-20 773 Sonoma Pippindale farm. On bench between Studio and the ridge top Comment
  CAS-BOT-BC66006  Athyrium filix-femina Mary P. Wells 1984-7-21 387 Sonoma The Hot Spot (by the Gualala River South Fork) The Sea Ranch Comment
  RSA227215  Athyrium filix-femina subsp. cyclosorum Peter Rubtzoff 1958-8-23 3911 Sonoma Laguna de Santa Rosa east of Cunningham Comment
  CAS-BOT-BC66155  Athyrium filix-femina var. cyclosorum Peter Rubtzoff 1951-7-8 411 Sonoma northern half of Lower Marsh; Pitkin Marsh near Forestville Comment
  SBBG221  Athyrium filix-femina var. cyclosorum H. and M. Dearing 1939-5-15 3385 Sonoma N of Fort Ross Comment
  JEPS59627  Atriplex prostrata Edw. L. Greene 1888-9-1 Sonoma Petaluma Comment
  SEINET10882908  Avena P. Rubtzoff 1972-5-25 Rubtzoff 6766 Sonoma Laguna, Chileno Valley. Comment
  SEINET237205  Avena barbata B. Crampton 1955-3-15 2326 Sonoma Old grape vineyards of the Italian Swiss Colony Winery Asti 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
  UCD56211  Avena barbata Beecher Crampton 1956-3-12 3222 Sonoma Along U.S. Hwy. 101. Italian-Swiss Colony Winery Grape Vineyards. Asti. Comment
  RSA785846  Avena fatua Peter Rubtzoff 1980-5-26 9450 Sonoma Russian River at Forest Hills, 5.5 miles E of Guerneville. Comment
  SD39664  Baccharis pilularis Edith A. Purer 1932-7-21 Sonoma Bodega Bay. Comment
  CAS-BOT-BC145832  Beckmannia syzigachne H. P. Bracelin 1930-7-20 20 Sonoma One mile north of Fort Ross. Comment
  CAS-BOT-BC145839  Beckmannia syzigachne John Thomas Howell 1930-6-8 5239 Sonoma Bodega Road, 3 miles east of Valley Ford. Comment
  POM206249  Beckmannia syzigachne A. A. Heller 1902-6-7 5650 Sonoma Bennet Valley, southeast of Santa Rosa. Comment
  UCD56776  Beckmannia syzigachne G. F. Hrusa; R. Gross 1996-6-30 13060 Sonoma 2 mi. SW of Calistoga. Diamond Mountain Road. 700 Comment
  UCD56802  Beckmannia syzigachne David L. Morgan 1956-5-18 s.n. Sonoma One mile S of Kenwood on State Highway 12. Comment
  CAS-BOT-BC106388  Bellis perennis John H. Thomas 1976-6-16 18292 Sonoma Southern part of Sea Ranch, northwestern part of county, about 7 miles south of Gualala. 30 Comment
  CDA6862  Bellis perennis G. D. Barbe 1982-5-27 3616 Sonoma 3.6 miles east of Stewarts Point (Highway 1) on Skaggs Spring Road. Comment
  HSC100948  Betula pendula Peter Warner 2011-4-6 186 Sonoma Pitkin Marsh, lower, ~750 m N2 deg. E from junction of Hwy. 116 and Guerneville Rd., S of main stream channel. 38 Comment
  UCR248966  Bidens frondosa Peter Rubtzoff 1956-9-15 2905 Sonoma Atascadero Creek Marsh Comment
  UCR250037  Bidens frondosa Peter Rubtzoff 1958-9-27 4012 Sonoma Laguna de Santa Rosa, northeast of Graton, 0.5 mi north of Guerneville Road 20 Comment
  CAS-BOT-BC290721  Bidens frondosa Peter Rubtzoff 1965-9-5 5644 Sonoma Russian River bottom at Forest Hills (5.5 miles east of Guerneville). Comment
  UCD129568  Bidens frondosa F. C. Crawford 1963-9-16 101 Sonoma Petaluma, Brentwood. Apricot Way. Comment
  JEPS54478  Bidens laevis Rimo Bacigalupi 1967-8-30 9311 Sonoma in central part of upper Pitkin Marsh (just below (s of) confluence of two upper (n) arms, very close to) 45 Comment
  UCR250384  Bidens laevis Peter Rubtzoff 1955-11-27 2170 Sonoma Bodega Head Marsh 2 Comment
  SEINET5586468  Bidens laevis Peter Rubtzoff 1963-1 5299 Sonoma Pitkin Marsh, near Forestville. Comment
  CAS-BOT-BC100247  Blennosperma bakeri Peter H. Raven 1963-4-28 18251 Sonoma 4.7 miles south of El Verano on Arnold Drive Comment
  JEPS81944  Blennosperma bakeri Rimo Bacigalupi, R. Ornduff, L. Heckard 1964-3-25 8929 Sonoma along Hayes St. just s Bettencourt (southern outskirts of town, at type locality); Sonoma 19 Comment
  JEPS83485  Blennosperma bakeri Jack and Betty Guggolz 1986-3-14 856 Sonoma n of, w of Hwy 12, n side of Bonneau road Bonneau Comment
  RSA0008299  Blennosperma bakeri L. S. Rose 1949-3-27 s.n. Sonoma Western outskirts of Sonoma. 27 Comment
  CAS-BOT-BC105961  Blennosperma nanum var. nanum A. A. Heller; H. E. Brown 1902-3-14 s.n. Sonoma Near Windsor Comment
  CAS-BOT-BC154953  Boisduvalia densiflora Peter Rubtzoff 1954-9-6 1739 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC154874  Boisduvalia densiflora Peter Rubtzoff 1961-7-22 4660 Sonoma Bennett Mtn. Lake. Comment
  RSA790717  Boisduvalia densiflora Peter Rubtzoff 1960-9-14 4556 Sonoma Laguna de Santa Rosa area NE of Graton (near Laguna Road). Comment
  CAS-BOT-BC154977  Boisduvalia glabella Peter Rubtzoff 1963-7-14 5202 Sonoma Laguna de Santa Rosa, E of Graton. Comment
  CAS-BOT-BC290567  Bolboschoenus maritimus subsp. paludosus Peter Rubtzoff 1970-8-18 6306 Sonoma 5 miles north of Sears Point. Comment
  CAS-BOT-BC145446  Brachypodium distachyon Barrett Anderson 1987-4-27 3461 Sonoma Petaluma, south of El Rose and west of D Street. 120 Comment
  UCD56892  Brachypodium pinnatum Dick Heim 1979-1-30 s.n. Sonoma Bodega Dunes State Beach. Comment
  CAS-BOT-BC36651  Brassica oleracea Mary P. Wells 1989-4-3 977 Sonoma Santa Rosa. Rincon Valley. Streamside of fence east of Friends House. Comment
  CAS-BOT-BC182742  Brassicaceae Peter Rubtzoff 1959-6-20 4187 Sonoma Willow Creek Marsh Comment
  CAS-BOT-BC145478  Briza maxima Ira L. Wiggins; R. S. Ferris 1943-4-30 10165 Sonoma Roadside 0.5 mile south of Asti, along Highway 101. Comment
  JEPS45817  Briza maxima Eleanor Armstrong 1932-5-16 154 Sonoma 2 mi southeast of Camp Meeker on ridge 106 Comment
  SBBG21223  Briza maxima B. Crampton 1954-4-26 Sonoma 2 mi N of Geyserville, US Hwy 101 Comment
  UCD57364  Briza maxima Beecher Crampton 1959-6-16 5371 Sonoma 0.2 miles E of Occidental. Comment
  UCR143595  Briza maxima G. F. Pratt, C. Pierce 2003-5-15 s.n. Sonoma North Coast, Salt Point State Park 122 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
  RSA239699  Briza minor Larry E. DeBuhr, Gary D. Wallace 1973-5-18 1097 Sonoma Pitkin-Jones Tree Farm. On Vine Hill Rd 1.3 miles N of jct with Gurneyville Rd. W of Santa Rosa. Comment
  RSA785739  Briza minor Carrie A. Herd 1982-4-25 74 Sonoma Crane Creek Regional Park,. Comment
  UCD57399  Briza minor Charles B. Heiser Jr. 1946-5-19 1753 Sonoma Russian River near Duncan Mills. Comment
  CAS-BOT-BC361411  Brodiaea californica subsp. leptandra Greg de Nevers 1991-6-22 9753 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, in Devil's Kitchen east of 3865 Franz Valley Rd. In Devils Kitchen 457 Comment
  UCD150132  Brodiaea coronaria Ayzik Solomeshch 2009-5-13 s.n. Sonoma West edge of city of Santa Rosa, S of Hwy 12 and just E of S Wright Rd. San Jones wetland, sampling pool #1. 31 Comment
  CAS-BOT-BC484397  Brodiaea elegans subsp. elegans Peter Rubtzoff 1971-6-23 6545 Sonoma Vernal pool 4.25 miles west of Glen Ellen on Bennett Valley Road Comment
  CAS-BOT-BC486535  Brodiaea elegans subsp. elegans Peter Rubtzoff 1952-6-10 1226 Sonoma Top of Fitch Mountain, near Healdsburg 304 Comment
  UC963918  Brodiaea leptandra Milo S. Baker 1947-5-30 11771 Sonoma sw slope Hood Mt. (near house trail from Gray Ranch) Comment
  JEPS79160  Brodiaea terrestris subsp. terrestris N. Harrison 1978-5-10 1571 Sonoma e end Cunningham Marsh (Blucher Creek drainage); Sebastopol, , Blucher Creek Comment
  CAS-BOT-BC486458  Brodiaea terrestris subsp. terrestris Peter Rubtzoff 1974-6-8 7581 Sonoma Todd Road 1.5 mi. from Hwy, 116 and 0.5 mi. from (west of) Llano Road. Comment
  UC463105  Brodiaea terrestris subsp. terrestris Milo S. Baker 1927-5-20 2148 b Sonoma Santa Rosa to Sebastopol highway (where concrete begins to the s) Comment
  SEINET3921827  Bromus carinatus Beecher Crampton 1955-6-8 2831 Sonoma Sonoma County, at Napa County border, 5 miles northwest of Calistoga, along State Highway 128.; 0 Comment
  UCD58257  Bromus carinatus Collector unknown 1941-3-1 Sonoma S. R. J. C. Santa Rosa. Comment
  UC573764  Bromus carinatus var. carinatus H. S. Yates 1937-5-30 6556 Sonoma 2 mi nw of Freestone 91 Comment
  CAS-BOT-BC149084  Bromus carinatus var. carinatus David L. Morgan 1961-4-26 s.n. Sonoma Marshal - Petaluma road 5 miles west of junction of Wilson Hill Road. Comment
  CAS-BOT-BC155896  Bromus catharticus var. elatus David L. Morgan 1956-4-24 s.n. Sonoma On State Highway #12, 1 mile east of Schellville Railroad Station. Comment
  CAS-BOT-BC155665  Bromus diandrus Peter Rubtzoff 1952-5-10 1021 Sonoma Pitkin Marsh near Forestville. Bordering the Upper Marsh in the east. Comment
  UCD59473  Bromus diandrus David L. Morgan 1956-4-20 s.n. Sonoma 4 mi. W of Petaluma on 'D' St. Ext. Comment
  CAS-BOT-BC155212  Bromus hordeaceus K. Wagnon 1939-4-26 175 Sonoma Near Wagnon home, 5 miles west of Sebastopol. Comment
  CAS-BOT-BC311801  Bromus hordeaceus Peter Rubtzoff 1958-7-5 3732 Sonoma Atascadero Creek Marsh. Comment
  CDA36960  Bromus hordeaceus CDFA Staff 1995-5-23 s.n. Sonoma Sugarloaf Ridge State Park; near junction of Meadow, Hillside, and Gray Pine Trails, east of bridge across Sonoma Creek. 0 Comment
  UCD66095  Bromus hordeaceus Frederica Bowcutt; Jeff Kennedy (Det.) and Jolie Hendricks 1994-5-1 1751 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. In Adobe Canyon N of Sugarloaf Ridge along Goodspeed Trail ~1/8 mile from trail head on Adobe Canyon Rd. 213 Comment
  SEINET10901199  Bromus hordeaceus A. Arthur Heller 1902-4-17 Heller 5325 Sonoma Santa Rosa. Comment
  SEINET11690154  Bromus hordeaceus W. Knight, Knight, I.; Howell, J. T. 1987-1 6278 Sonoma Todd Road Preserve 24 Comment
  UC766917  Bromus laevipes R. F. Hoover 1941-5-14 5089 Sonoma 2 mi s of Monte Rio (on road to Camp Meeker) Comment
  UCD36537  Bromus madritensis subsp. madritensis Beecher Crampton 1954-4-26 1794 Sonoma Sonoma County, at border with Mendocino County, 3 miles north of Cloverdale, along U.S. Highway 101. Comment
  HSC101106  Bromus pseudolaevipes Peter Warner 2011-6-14 212 Sonoma E of Sonoma; Two Terriers Vineyards, 2320 Loval Valley Road; along Arroyo Seco (creek) 102 Comment
  UCD36880  Bromus racemosus Beecher Crampton 1956-4-24 3309 Sonoma Sonoma County, Healdsberg, vacant lot at junction of Prince and Sherman Streets. Comment
  UC855700  Cakile maritima Milo S. Baker 1938-5-6 8978 Sonoma near Sea Cliff n of Salmon Creek Comment
  UCD114959  Cakile maritima Helen K. Sharsmith 1963-5-25 5499 Sonoma Sand dunes just south of Bodega Harbor. 1 Comment
  CAS-BOT-BC352218  Calamagrostis Peter Rubtzoff 1971-6-10 6537 Sonoma Pitkin Marsh, near Forestville. Comment
  UCR254899  Calamagrostis Peter Rubtzoff 1967-8-22 5856 Sonoma Southeast of lower Salmon Creek Marsh 4 Comment
  RSA0064343  Calamagrostis Peter Rubtzoff 1971-6-10 6537 Sonoma Pitkin Marsh, near Forestville. Comment
  UCD57039  Calamagrostis bolanderi Freed W. Hoffman 1941-6-15 2157 Sonoma North Coast Ranges, Sonoma Coast, Eckert's Ranch near Salt Point. Comment
  UCD57042  Calamagrostis bolanderi Beecher Crampton 1957-7-22 4379 Sonoma State Hwy. 1, 8.7 miles south of Stewart's Point. Comment
  RSA94095  Calamagrostis bolanderi J. T. Howell 1947-6-5 23235 Sonoma Cunningham Marsh Comment
  CAS-BOT-BC185122  Calamagrostis nutkaensis Mary P. Wells 1983-8-3 160 Sonoma Timber Preserve of Oceanic of California, Inc., The Sea Ranch. Comment
  CAS-BOT-BC185129  Calamagrostis nutkaensis Peter Rubtzoff 1963-8-17 5228 Sonoma Russian River Mouth Marsh. Comment
  UC905592  Calamagrostis nutkaensis David D. Keck 1948-6-29 5929 Sonoma 2 mi n Fort Ross 45 Comment
  UCD57505  Calamagrostis nutkaensis P. B. Kennedy 1916-7-17 s.n. Sonoma Del Mar Ranch. Comment
  JEPS128372  Calamagrostis ophitidis Roger Raiche 1999-6-20 016 .99 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UCD57734  Calamagrostis rubescens R. Tofsrud 1951-6-1 s.n. Sonoma north of Sonoma, 'Top-O-The-World' road, near Bay Area Lookout. Comment
  CAS-BOT-BC166776  Calandrinia Peter Rubtzoff 1974-5-11 7396 Sonoma Laguna de Santa Rosa ca. 1 mile ESE of Sebastopol. Comment
  CAS-BOT-BC361342  Calandrinia breweri Greg de Nevers 1997-4-24 10970 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  SEINET9288286  Calendula arvensis Unknown 2000-3-6 20969 Sonoma Sonoma Comment
  UC1393146  Calendula arvensis John L. Strother 1969-3-29 691 Sonoma ca. 4 mi sse of Sonoma Comment
  CAS-BOT-BC273237  Calendula arvensis Peter H. Raven 1963-4-28 18257 Sonoma Just west of El Verano Comment
  CAS-BOT-BC273241  Calendula arvensis Rimo Bacigalupi 1946-2-1 s.n. Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles northeast of Penngrove on the west slope of Sonoma Mountain 457 Comment
  UCR249085  Callitriche heterophylla Peter Rubtzoff 1971-5-8 6450 Sonoma Intermittent Lake off west side of Highway 1, 0.7 miles SE of Salmon Creek crossing 18 Comment
  NY370182  Callitriche heterophylla var. bolanderi F. T. Bioletti 05 1893 s.n. Sonoma Comment
  NY370183  Callitriche heterophylla var. bolanderi C. H. Michener 1893-4-25 s.n. Sonoma Comment
  UCR249030  Callitriche verna Peter Rubtzoff 1974-4-6 7348 Sonoma Kenwood Marsh 120 Comment
  UCR249035  Callitriche verna Peter Rubtzoff 1971-6-26 6572 Sonoma Willow Creek Marsh 9 Comment
  SD56795  Calochortus amabilis Darley F. Howe 1963-5-23 Sonoma 3.8 miles north of Cloverdale, on #128. 334 Comment
  UCD111677  Calochortus amabilis Christopher Mallek 2007-5-13 HC1- 8 Sonoma Hooker Canyon. 590 Comment
  CAS-BOT-BC483276  Calochortus amabilis F. G. Krauss 1894-5-1 s.n. Sonoma Mountains west of Calistoga Comment
  CAS-BOT-BC483287  Calochortus amabilis Eliz. Parsons Hawver 1915-6-3 s.n. Sonoma Skaggs Springs Comment
  CAS-BOT-BC483290  Calochortus amabilis W. W. Carruth 1901-6-1 s.n. Sonoma Near Seaview Comment
  CAS-BOT-BC483293  Calochortus amabilis Charles H. Newman 1964-5-24 s.n. Sonoma Mayacamas Range, N.E. of Santa Rosa Comment
  CAS-BOT-BC492640  Calochortus luteus W. L. Jepson 1918-6-23 7656 Sonoma Windsor Comment
  CAS-BOT-BC492643  Calochortus luteus Carl Purdy No date on label. s.n. Sonoma Sonoma Co Comment
  SEINET6165496 Image available Calochortus luteus Unknown 1981-6-18 s.n. Sonoma W side of Ida Clayton Rd on Mt St Helena. Comment
  UCD139533  Calochortus luteus G. V. Morejohn 1954-5-23 30 Sonoma beside Highway 12, 3 miles north of Sonoma. Comment
  SEINET10859649 Image available Calochortus raichei Roger E. Raiche 1986-7-7 Raiche 60214 Sonoma N of Cazadero. The Cedars. Headwaters of Big Austin Creek, near Laton Mine. 840 Comment
  CAS-BOT-BC494025  Calochortus tolmiei Wayne Roderick 1967-5-15 s.n. Sonoma 1 mile n. of Fort Ross 22 Comment
  UCR255747  Calochortus uniflorus Greg de Nevers 1996-4-18 10791 Sonoma North Coast Range, Knights Valley Marsh, on Bavarian Lion Ranch 137 Comment
  RSA93402  Calycadenia multiglandulosa subsp. cephalotes Milo S. Baker 1932-6-9 6000 Sonoma 1 mile east of Occidental Comment
  CAS-BOT-BC270847  Calycadenia pauciflora David D. Keck 1944-7-11 5511 Sonoma The Geysers, Mayacamas Range Comment
  UC89043  Calycadenia truncata Katharine Brandegee 1892-8-1 Sonoma Petrified Forest Comment
  UCD158790  Calycadenia truncata James A. Neilson Jr. 1974-6-1 2877 Sonoma Mayacmas Mountains, Geyser Rock, Sonoma County. (Elevation estimated by label maker using Google Earth.) 1118 Comment
  CAS-BOT-BC91004  Calycanthus occidentalis H. L. Mason 1934-4-28 8067 Sonoma Jensen Ranch, head of Dohrman Creek. Comment
  CAS-BOT-BC91012  Calycanthus occidentalis Roxana S. Ferris; Laura Lorraine 1961-6-15 13554 Sonoma Green Valley Road 0.8 mile east of junction with Harrison Grade Road. Comment
  HSC3814  Calycanthus occidentalis M. E. Ferguson, E. Ferguson 1919-6-8 Sonoma Near Guerneville, Russian River. Comment
  OBI49312  Calycanthus occidentalis Michener & Bioletti, Bioletti Jun 1893 s.n. Sonoma Hoods Peak Comment
  UCD137898  Calycanthus occidentalis P. B. Kennedy 1927-8-20 s.n. Sonoma Knight's Valley. Comment
  JEPS21820  Calypso bulbosa Roy Ramberg 1958-4-5 Sonoma 1/2 mi se of Occidental (in Redwood Picnic Area); Redwood Picnic Area 45 Comment
  JEPS29352  Calypso bulbosa Wayne Roderick 1963-3-2 Sonoma 3 mi nw of Occidental (on Willow Creek Road); Willow Creek Road 304 Comment
  CAS-BOT-BC292508  Calystegia R. K. Brummitt; T. F. Daniel 1997-5-31 19615 Sonoma 10 km NE of Santa Rosa, Pepperwood Ranch Natural Preserve, near Bechtel Cabin. 300 Comment
  JEPS87230  Calystegia collina subsp. collina Jack and Betty Guggolz 1991-4-10 1107 Sonoma about 3 mi n Oakmont (Santa Rosa, gorwing on n side of Los Alamos Road about a half-mi e of a high-power line crossing); n of Oakmont, Santa Rosa 524 Comment
  RSA799041  Calystegia collina subsp. collina Sandra M. Namoff, Eric R. Carter 2013-6-20 94 Sonoma East of Santa Rosa, N side of Los Alamos Rd about 0.5 miles east of high transmission lines, same location as Jack and Betty Guggolz 1107. 524 Comment
  CAS-BOT-BC223620  Calystegia collina subsp. oxyphylla R. K. Brummitt; A. Wolf; R. W. Howe 1998-5-15 19859 Sonoma 18 km ENE of Healdsburg, on Ida Clayton Road 4 km above Rte. 128 650 Comment
  CAS-BOT-BC516195  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
  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
  CAS-BOT-BC436379  Calystegia occidentalis subsp. occidentalis Alice Eastwood 1915-6-5 4570 Sonoma Petrified Forest Comment
  UC105092  Calystegia purpurata subsp. saxicola Katharine Brandegee 1905-6-25 Sonoma Bodega Head Comment
  UC105093  Calystegia purpurata subsp. saxicola Katharine Brandegee 1905-6-25 Sonoma Bodega Cliffs Comment
  UC141628 Image available Calystegia purpurata subsp. saxicola Alice Eastwood 1900-7-4 Sonoma Bodega Point; ; Bodega Pt., Sonoma Co. Comment
  UC879438  Calystegia purpurata subsp. saxicola Alice Eastwood 1917-5-13 Sonoma Bodega Bay Comment
  OBI35908  Calystegia soldanella David J. Keil 1983-6-29 17192 Sonoma Doran Beach County Park, Bodega Head Comment
  CAS-BOT-BC436455  Calystegia subacaulis Lewis S. Rose 1941-5-22 41251 Sonoma Rincon Ridge, 4 mi. E of Santa Rosa 121 Comment
  JEPS128289  Calystegia subacaulis Roger Raiche 2008-5-18 005 .08 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UC1123588  Calystegia subacaulis E. Armstrong 1934-3-26 938 Sonoma 4 miles N of Camp Meeker; Sebastopol Quad. Comment
  CAS-BOT-BC498776  Camassia quamash subsp. linearis John Thomas Howell 1945-5-30 20905 Sonoma Pitkin Marsh Comment
  RSA186557  Camissonia micrantha Peter H. Raven 1963-4-28 18245 Sonoma between town of Bodega and Bodega Head. Comment
  LA93755  Camissoniopsis cheiranthifolia David C. Fruchtenicht; 1965-5-1 54 Sonoma 60 yards from the sea, Marine Biological Station, Horseshoe Cove, Boedga Head 15 Comment
  CAS-BOT-BC160367  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Alice Eastwood 1915-6-29 4832 Sonoma Bodega Point Comment
  UC107658  Camissoniopsis hirtella Michener and Bioletti May 1892 Sonoma Comment
  CAS-BOT-BC266419  Campanula californica Peter Rubtzoff 1965-8-10 5588 Sonoma Duncans Mills Marsh, at the edge of forest bordering the lower portion of the marsh in the west Comment
  RSA264763  Campanula californica Peter Rubtzoff 1965-8-10 5588 Sonoma Duncan's Mill Marsh Comment
  SEINET10463913  Campanula californica Baker 1928-6-28 Baker 30466 Sonoma Pitkin Marsh. Comment
  SEINET10972386  Campanula prenanthoides Condit 1908-8-13 CONDIT s.n. Sonoma GUERNEVILLE Comment
  CDA37789  Cardamine californica G. F. Hrusa, R. Gross 1996-3-8 12657 Sonoma North Coast Biodiversity Arena; Above lower Foote Creek. Foote Ranch at corner of Ida Clayton Rd. and Hwy. 128. Comment
  JEPS119398  Cardamine californica J. Greenhouse with R. Raiche, H. Bartosh, J. Game 2012-2-4 5143 Sonoma The Cedars. Comment
  JEPS128337  Cardamine californica Roger Raiche 2010-2-28 008 .10 Sonoma The Cedars. Gateway parcel. Lower Russian River, Big Austin Creek watershed. Comment
  UCD114498  Cardamine californica R. H. Miller 1949-4-6 24 Sonoma 5 miles southeast of Monte Rio, on Highway 12. Comment
  UCD167111  Cardamine californica James Neilson 1977-3-25 3849 Sonoma Mayacmas Mountains. Socrates Mine area. (Exact location unknown, coordinates estimated by label maker.) Comment
  UCD77454  Cardamine californica Robert E. Preston 2001-2-28 1497 Sonoma Ca. 2.5 mi NE of Fort Ross, near Seaview 381 Comment
  CAS-BOT-BC38030  Cardamine oligosperma Peter Rubtzoff 1959-6-6 4096 Sonoma Willow Creek Marsh. Comment
  CAS-BOT-BC38040  Cardamine oligosperma D. E. Breedlove 1983-4-11 58692 Sonoma Pepperwood Ranch west of Knights Valley. Comment
  CAS-BOT-BC384863  Cardionema ramosissimum John H. Thomas 1976-6-15 18289 Sonoma Southern end of the Sea Ranch, northwestern part of county, about 7 miles south of Gualala 30 Comment
  CAS-BOT-BC281763  Carduus pycnocephalus G. DeNevers 1981-5-9 1058 Sonoma Along road below the Strebel Homestead Comment
  CDA19871  Carduus pycnocephalus P. Lane 2002-5-14 PDR P 092606 Sonoma North Coast Ranges; King St in Petaluma. 0 Comment
  UCD159445  Carduus pycnocephalus subsp. pycnocephalus D. S. Park; S. Nicole, M. Armijos, H. Sandhu 2010-8-3 202 Sonoma Near Sonoma state beach hiking trail. Abundant. 40 Comment
  CAS-BOT-BC281795  Carduus tenuiflorus Catherine Best 1994-5-1 s.n. Sonoma Bodega Head Comment
  UCR280168  Carex Peter Rubtzoff, Nancy Harrison 1978-6-11 9213 Sonoma Cunningham Marsh area, on north side of Blucher Creek Valley 35 Comment
  CAS-BOT-BC334518  Carex abrupta Peter Rubtzoff 1954-6-7 1482 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC18135  Carex athrostachya John Thomas Howell; J. W. Stacey 1937-6-6 13018 Sonoma Sebastopol. Comment
  CAS-BOT-BC18145  Carex athrostachya Peter Rubtzoff 1959-5-30 4055 Sonoma Freestone Marsh. Comment
  CAS-BOT-BC320571  Carex athrostachya Peter Rubtzoff 1974-6-2 7507 Sonoma Upper Green Valley Marsh. Comment
  CDA13128  Carex athrostachya G. F. Hrusa, R. Gross 1996-6-3 13063 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
  UCR208538  Carex athrostachya Peter Rubtzoff 1960-5-29 4426 Sonoma Laguna de Santa Rosa near Trenton [Rd.], south of Woolsey Road Comment
  CAS-BOT-BC19367  Carex barbarae A. A. Heller 1902-7-1 5797 Sonoma Lagoon at Sebastopol. Comment
  CAS-BOT-BC290554  Carex barbarae Peter Rubtzoff 1975-7-3 8152 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC329311  Carex barbarae Peter Rubtzoff 1976-5-30 8577 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC371452  Carex barbarae Peter Rubtzoff 1953-5-16 1360 Sonoma Vacation Beach, near Guerneville, along Russian River. Comment
  CAS-BOT-BC310302  Carex barbarae Peter Rubtzoff 1971-8-9 s.n. Sonoma Laguna Lake area, Cileno Valley. Comment
  RSA0015629  Carex barbarae Peter Rubtzoff 1975-7-3 8152 Sonoma Kenwood Marsh. Comment
  SEINET7551510 Image available Carex barbarae Don Pendleton 1993-5-29 5297 Sonoma Westside Road, Russian River Valley, ca. 5 miles SW of Healdsburg. Comment
  UCD140182  Carex brevicaulis P. G. Connors 1991-5-24 110 Sonoma Bodega Marine Laboratory, Bodega Head and Dunes. Comment
  CAS-BOT-BC18987  Carex densa Lewis S. Rose 1939-5-14 39117 Sonoma Bodega. 30 Comment
  CAS-BOT-BC20473  Carex densa John Thomas Howell 1937-7-4 13073 Sonoma Near Petrified Forest. Comment
  CAS-BOT-BC20476  Carex densa John Thomas Howell; J. W. Stacey 1937-6-6 13025 Sonoma Sebastopol. Comment
  CAS-BOT-BC20498  Carex densa Peter Rubtzoff 1955-4-30 1795 Sonoma Sonoma County Marshes. Stony Point Marsh. Comment
  CAS-BOT-BC20506  Carex densa Peter Rubtzoff 1960-5-15 4323 Sonoma Sonoma County Marshes. Fife Creek Marsh. Comment
  RSA758129  Carex densa Peter Rubtzoff 1954-6-6 1466 Sonoma Guerneville Marsh. Comment
  UCD140258  Carex densa Frederica Bowcutt 1994-5-1 1785 Sonoma Sugarloaf Ridge State Park. About 40 air miles north of San Francisco. About 11 air miles east of Santa Rosa. About 1.5 air miles north of Kenwood. About 18 air miles northwest of Napa. In main campground. Ca. 150 yards south of Sonoma Creek; 1/4 mile NW of confluence with Rattlesnake Creek at toe of Sugarloaf Ridge. 350 Comment
  CAS-BOT-BC20503  Carex densa Peter Rubtzoff 1962-5-30 4853 Sonoma Sonoma County Marshes. Upper Freestone Marsh. Comment
  POM248596  Carex dudleyi J. T. Howell 1938-7-3 13948 Sonoma Stony Point. Comment
  CAS-BOT-BC19897  Carex echinata subsp. phyllomanica John Thomas Howell 1945-5-30 20892 Sonoma Pitkin Marsh. Comment
  CAS-BOT-BC20134  Carex feta Peter Rubtzoff 1957-5-11 3328 Sonoma Occidental Marsh. Comment
  CAS-BOT-BC422355  Carex gracilior Peter Rubtzoff 1959-4-18 4029 Sonoma Laguna de Santa Rosa northeast of Graton, ca. 0.5 miles north of Guerneville Road crossing. Comment
  UCD112361  Carex gracilior Peter Rubtzoff 1955-4-30 1794 Sonoma Stony Point Marsh. Comment
  CAS-BOT-BC422372  Carex gynodynama Peter Rubtzoff 1962-5-11 4829 Sonoma Freestone Marsh. Comment
  CAS-BOT-BC249298  Carex harfordii Peter Rubtzoff 1960-5-16 4350 Sonoma Duncan Mills Marsh Comment
  CAS-BOT-BC249315  Carex harfordii Peter Rubtzoff 1960-5-16 4351 Sonoma Duncan Mills Marsh Comment
  CAS-BOT-BC311836  Carex harfordii Peter Rubtzoff 1974-6-2 7513 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC320574  Carex harfordii Peter Rubtzoff 1964-5-20 5304 Sonoma Brooks Gulch Marsh. Comment
  SEINET7561245 Image available Carex harfordii Andrew L. Hipp, Glen C. Clifton 1999-5-27 349 Sonoma Marsh opposite entrance to Doran Beach Park, Bodega Harbor Marsh. 15 Comment
  UCD112445  Carex harfordii Peter Rubtzoff 1954-6-20 1499 Sonoma Guerneville Marsh. Comment
  UCR248914  Carex harfordii Peter Rubtzoff 1962-6-1 4861 Sonoma Freestone Marsh 79 Comment
  UCR248919  Carex harfordii Peter Rubtzoff 1962-6-1 4865 Sonoma Freestone Marsh 79 Comment
  RSA0022360  Carex harfordii Peter Rubtzoff 1964-5-20 5304 Sonoma Brooks Gulch Marsh. Comment
  CAS-BOT-BC311814  Carex hendersonii Peter Rubtzoff 1955-5-14 1855 Sonoma Duncans Mills Marsh. Comment
  CAS-BOT-BC21030  Carex hendersonii Peter Rubtzoff 1954-6-7 1490 Sonoma East Guernewood, near Guerneville. Comment
  RSA0023064  Carex hendersonii Peter Rubtzoff 1957-6-28 3387 Sonoma Duncans Mills Marsh. Comment
  CAS-BOT-BC31432  Carex leptopoda R. F. Hoover 1941-5-14 5079 Sonoma 3 mi S of Monte Rio on road to Camp Meeker. Comment
  UCR248866  Carex leptopoda Peter Rubtzoff 1960-5-16 4347 Sonoma Duncan Mills Marsh 2 Comment
  UCR249078  Carex leptopoda Peter Rubtzoff 1964-5-20 5323 Sonoma Bodega Bay Marsh 15 Comment
  UCR249080  Carex leptopoda Peter Rubtzoff 1964-6-24 5374 Sonoma Lower Salmon Creek Marsh 6 Comment
  RSA0034041  Carex obnupta Peter Rubtzoff 1964-5-20 5305 Sonoma Brooks Gulch Marsh. Comment
  UCD150841  Carex obnupta 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
  UCD140707  Carex obnupta R. N. Raynor 1942-4-10 s.n. Sonoma 9 miles west of Petalum on road to Tomales. Comment
  CAS-BOT-BC119290  Carex ovalis John Thomas Howell 1947-6-26 23240 Sonoma Cunningham Marsh. Comment
  CAS-BOT-BC320582  Carex ovalis Peter Rubtzoff 1966-6-5 5758 Sonoma Laguna de Santa Rosa, east of Graton, between Occidental and Guerneville roads. Comment
  UC1147827  Carex pellita John Thomas Howell, J. W. Stacey 1937-6-6 13041 Sonoma Pitkin Marsh Comment
  SEINET4469615 Image available Carex sonomensis J. T. Howell, J. W. Stacey 1937-1 13042 Sonoma Pitkin Marsh Comment
  CAS-BOT-BC117341  Carex stipata Peter Rubtzoff 1951-6-7 143 Sonoma Pitkin marsh, near Forestville. Branch of the Upper marsh. Comment
  CAS-BOT-BC329280  Carex stipata Peter Rubtzoff 1955-5-14 1838 Sonoma Forestville 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
  UCR248942  Carex stipata Peter Rubtzoff 1960-5-22 4410 Sonoma Laguna de Santa Rosa, east of Graton, between Occidental and Guerneville roads 37 Comment
  CAS-BOT-BC310296  Carex stipata Peter Rubtzoff 1955-6-4 1904 Sonoma Forestville Marsh. Comment
  UC1133459  Carex stipata var. stipata H. S. Yates 1936-5-16 5604 Sonoma 2 mi se Forestville (Pitkin Marsh); Sebastopol Quadrangle Comment
  CAS-BOT-BC116787  Carex subbracteata var. subbracteata Catherine Best 1985-5-15 1086 Sonoma Bodega Head. Comment
  CAS-BOT-BC350937  Carex tumulicola Peter Rubtzoff 1959-5-31 4076 Sonoma Freestone Marsh. Comment
  RSA0031801  Carex tumulicola Peter Rubtzoff 1960-5-16 4345 Sonoma Duncans Mills Marsh. Borderland of the marsh. Comment
  CAS-BOT-BC281917  Carthamus lanatus B. Crampton 1957-7-22 4356 Sonoma 15.2 miles W of Skagg's Springs on road to Stewart's Point Comment
  CDA7004  Carthamus leucocaulos T. C. Fuller 1970-5-4 19484 Sonoma 2 miles west of the overpass, Highway 101, Asti. 0 Comment
  CDA7006  Carthamus leucocaulos G. D. Barbe, T. C. Fuller 1972-6-28 951 Sonoma Approximately 1 mile west of U.S. 101 freeway, Asti. 0 Comment
  SEINET13331041 Image available Carthamus leucocaulos T. C. Fuller 1969-9-16 18901 Sonoma 0.25 acre of weed scattered over 2 acres, abundant on both slopes of the dam of a reservoir, about 1 mi. W. of the Asti turn-off of the freeway, Hwy 101, Asti 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
  JEPS20321  Castilleja ambigua subsp. ambigua Lewis S. Rose 1955-6-2 55057 Sonoma 10 mi w Santa Rosa (w of Vine Hill Road); Pitkin Marsh 30 Comment
  UCD122116  Castilleja ambigua subsp. ambigua Frederica Bowcutt 1984-6-23 449 Sonoma Salt Point State Park. Approx. 20 miles north of Jenner and 80 miles south of Fort Bragg on the Sonoma County coast. West of Highway 1, about 1/2 mile north of Gerstle Cove. 15 Comment
  JEPS128272  Castilleja applegatei subsp. martinii Roger Raiche 2000-4-7 019 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  JEPS3635  Castilleja applegatei subsp. martinii C. Ritchie Bell 1952-6-12 1143 Sonoma 3.7 mi e Pine Flat (on ridge near Sonoma-Lake County line); Mayacamas Range Comment
  JEPS9948  Castilleja attenuata W. L. Jepson 1921-5-6 9188 Sonoma Porter Creek 365 Comment
  CDA41335  Castilleja attenuata T. C. Fuller 1977-4-21 20195 Sonoma Church of Christ property, 1825 Fulton Road, 0.5 km south of Piner Road, Santa Rosa. 0 Comment
  UCD122304  Castilleja attenuata Collector unknown Date unknown s.n. Sonoma location unknown. Comment
  UC1567928  Castilleja foliolosa F. H. Utech 1986-5-13 86 -104 Sonoma ca 3.0 mi ne Cavedale (road from junction with CA Hwy 12) 250 Comment
  SEINET12320784  Castilleja foliolosa W. Knight, Knight, I. 1981-1 3970 Sonoma 2.3 mi up Cavedale Rd from jct of CA 12 Comment
  SEINET12327823  Castilleja foliolosa F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -078 Sonoma ca 4 mi NNW of Sonoma on Cavedale Road from junction with CA 12 152 Comment
  CAS-BOT-BC243852  Castilleja latifolia Ella Dales Cantelow 1938-5-7 2413 Sonoma 4 1/2 mi. NW of Bodega Comment
  CAS-BOT-BC243859  Castilleja latifolia John Thomas Howell 1930-7-27 5401 Sonoma 1 mile north of Fort Ross Comment
  UC1179004  Castilleja rubicundula subsp. lithospermoides Francia Chisaki with R. Ornduff and H. G. Baker 1958-4-26 1132 Sonoma 2.6 mi n Healdsburg Comment
  JEPS35570  Castilleja subinclusa subsp. franciscana L. R. Heckard 1964-6-12 1384 Sonoma about 2.5 mi n mouth of Russian River (slope back from the ocean in Russian Gulch, near point where highway loops back w); Russian Gulch 91 Comment
  JEPS35852  Castilleja subinclusa subsp. franciscana Rimo Bacigalupi, and L. R. Heckard 1964-8-3 8998 Sonoma 0.9 mi n Calif. Hwy. 1 junction with road to Seaview (along Calif Hwy 1, between Fort Ross and Russian Gulch, just s of Meyer Gulch) 152 Comment
  JEPS116517  Castilleja subinclusa subsp. franciscana Peter Warner 2009-6-3 103 Sonoma Poff Ranch, Wright Hill Road E about 1 mi off State Hwy 1, in grassland 50 m ESE of main (west) gate 250 Comment
  JEPS19386  Castilleja uliginosa G. Thomas Robbins 1937-6-5 218 Sonoma about 10 mi w Santa Rosa (marsh on Pitkin Ranch); Vine Hill Region Comment
  CAS-BOT-BC168063  Castilleja uliginosa John Thomas Howell 1945-5-30 20895 Sonoma Pitkin Marsh Comment
  JEPS23808  Castilleja wightii Rimo Bacigalupi with Don Liles 1959-7-13 7323 Sonoma 3.5 mi s Fort Ross (along State Hwy 1) 137 Comment
  UC1032389  Castilleja wightii H. S. Yates 1934-4-21 3811 Sonoma Bodega Point; Duncan Mills Quad. 7 Comment
  CAS-BOT-BC47804  Ceanothus James McMurphy 1909-5-29 s.n. Sonoma Creek between Geyser Mountain and the Geysers Comment
  CAS-BOT-BC32773  Ceanothus confusus John Thomas Howell 1937-7-4 13080 Sonoma Rincon Ridge, NE of Santa Rosa Comment
  CAS-BOT-BC48514  Ceanothus confusus Alice Eastwood 1923-5-9 11749 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC83812  Ceanothus confusus D. O. Burge; Steven Kembel 2008-5-29 1003 c Sonoma Mayacmas Mountains, western slope of Mount Hood 560 Comment
  RSA21906  Ceanothus confusus J. T. Howell 1937-4-11 12903 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  SBBG4132  Ceanothus confusus M. S. Baker 1939-3-20 9244 Sonoma ca. 4 mi N of Santa Rosa on rd past County Hospital Comment
  SBBG4133  Ceanothus confusus M. Van Rensselaer 1941-4-27 1639 Sonoma Montecito Rd, Rincon Ridge Comment
  UC1281313  Ceanothus confusus H. E. McMinn 1941-4-27 5322 Sonoma Rincon Ridge Comment
  UC1281314  Ceanothus confusus Milo S. Baker 1940-1 10173 Sonoma Fitzsimmon's Grade Comment
  UCD111373  Ceanothus confusus Roger Raiche 1985-11-28 RR 50897 Sonoma W of Cloverdale, Red Mt. between Hot Springs Road and Cherry Creek Road. 377 Comment
  UCD111374  Ceanothus confusus L. Whitney Date unknown s.n. Sonoma University Hill. Comment
  CAS-BOT-BC83820  Ceanothus foliosus D. O. Burge; C. Miller 2007-6-12 938 b Sonoma Mayacmas Mountains, head of Hooker Canyon 560 Comment
  UC1614464  Ceanothus foliosus Charles M. Belshaw 1936-3-8 1580 Sonoma 3 1/2 mi. n.w. Kenwood; Inner N. Coast Range 144 Comment
  UC18322  Ceanothus foliosus State Survey 1862-4-18 984 Sonoma near Sonoma Comment
  CAS-BOT-BC49904  Ceanothus foliosus var. foliosus Walter Knight; Irja Knight 1963-9-1 141 Sonoma Pine Mt. Rd. - N.E. of Cloverdale, Harold Smith Ranch Comment
  CAS-BOT-BC49912  Ceanothus foliosus var. foliosus Tom Craig 1941-6-18 s.n. Sonoma Trinity Road, west slope, between Glen Ellen and Rutherford Comment
  CDA11983  Ceanothus foliosus var. foliosus G. F. Hrusa, T. D. Wilfred 1995-12-3 12488 Sonoma North Coast Biodiversity Arena; SE summit of Chalk Mtn., Foote Ranch property, NW base of Mt. St. Helena. Comment
  RSA300966  Ceanothus foliosus var. vineatus D. C. Michener 1982-7-26 4118 Sonoma Vine Hill School road, 100' west of Vine Hill school, lot west of residence 6096; north road bank between vineyard and road Comment
  UC1280760  Ceanothus foliosus var. vineatus H. E. McMinn 1941-4-26 5320 Sonoma 9 mi s. Gurniville Comment
  CAS-BOT-BC50004  Ceanothus gloriosus John Thomas Howell 1935-5-5 12614 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  CAS-BOT-BC50012  Ceanothus gloriosus Milo S. Baker 1935-4-1 8031 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  LA43584  Ceanothus gloriosus var. exaltatus Henry Reents; 1936-5-2 sn Sonoma 0.5 mi. past slough, on rd. to Rio Nido Comment
  CAS-BOT-BC63739  Ceanothus griseus Alisa S. M. McKenzie 1981-1-31 11 Sonoma Kolmer Gulch, calif. State highway 1 at marker 34. Top of bank w. side of creek, n. side of road. Comment
  CAS-BOT-BC63741  Ceanothus griseus Walter Knight; Irja Knight 1964-2-28 565 Sonoma Ca. 6 mi. n. of Stewarts Point. Comment
  RSA276844  Ceanothus incanus James I. McMurphy 1909-5-29 s.n. Sonoma Creek between Geyser Mtn and the Geysers Comment
  UCD112175  Ceanothus incanus Collector unknown Date unknown s.n. Sonoma southeastern part of county. Comment
  CAS-BOT-BC50720  Ceanothus integerrimus var. macrothyrsus Helen D. Geis 1902-1-1 s.n. Sonoma unspecified Comment
  UCD112069  Ceanothus jepsonii D. Sanchez-Mata; P. Rodriguez Rojo 1996-8-9 s.n. Sonoma Camp Meeker-Monte Rio. Dutch Bill Creek. 800 Comment
  CAS-BOT-BC51869  Ceanothus parryi H. E. McMinn 1922-6-7 s.n. Sonoma Near Monte Rio Comment
  CAS-BOT-BC51871  Ceanothus parryi T. S. Brandegee 1889-6-1 20 Sonoma Tall House, Mt. St. Helena Comment
  CAS-BOT-BC51879  Ceanothus parryi John Thomas Howell 1941-4-5 16174 Sonoma Rincon Ridge Comment
  UC73362  Ceanothus parryi Milo S. Baker 1898-4-23 28 Sonoma Santa Rosa Creek Canyon Comment
  CAS-BOT-BC51887  Ceanothus parryi Roger Raiche 1985-4-6 RR 50183 Sonoma West of Healdsburg, Dry Creek area, ridge West of Dry Creek Valley and North of Dorman Canyon (Crane Creek) 243 Comment
  SEINET12210605  Ceanothus parryi W. Knight, Knight, I. 1981-1 3968 Sonoma 2.3 mi up Cavedale Road from junction of State Route #12 Comment
  SD88410  Ceanothus sonomensis D. F. Howe 1972-4-28 Sonoma Trinity Road, Mt. Hood Range 395 Comment
  UC1614463  Ceanothus sonomensis Charles M. Belshaw 1936-3-8 1581 Sonoma 3/4 mi. n. Annadel (n.w. of Kenwood) 144 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
  SEINET12210863  Ceanothus sonomensis W. Knight, Knight, I. 1982-1 4625 Sonoma 305 Comment
  UCSB25382  Ceanothus sonomensis McMinn, H. 1944-11-5 Sonoma Near old rock quarry about 1-2 miles from Kenwood highway as the Oakville road leads off Comment
  CAS-BOT-BC52398  Ceanothus velutinus Walter Knight; Irja Knight 1964-2-27 560 Sonoma Seaview Comment
  UCD161376  Centaurea melitensis James A. Neilson Jr. 1976-6-18 s.n. Sonoma Mayacmas Mountains. Ridge between Squaw Creek and Big Sulphur Creek, above Cloverdale Mine, (Elevation and exact location estimated by label maker.) 731 Comment
  CAS-BOT-BC277251  Centaurea solstitialis Peter Rubtzoff 1953-11-1 1438 Sonoma Vacation Beach, near Guerneville. Bank of Russian River Comment
  UC34566  Centaurea solstitialis F. T. Bioletti 1891-9-7 Sonoma Shellville Comment
  CAS-BOT-BC277254  Centaurea solstitialis G. DeNevers 1981-6-6 1447 Sonoma Pepperwood Ranch. At the first Pepperwood entrance Comment
  RSA662536  Centaurium floribundum J. C. Roos 1957-7-3 6652 Sonoma Healdsberg Comment
  UCD82017  Centaurium tenuiflorum Ayzik Solomeshch 2009-5-12 s.n. Sonoma Along Bennett Valley Road (between Santa Rosa and Glenn Ellen). Vernal pool plot BEB2F. 189 Comment
  JEPS20839  Centaurium trichanthum Harry K. Roberts 1958-7-8 Sonoma 0.3 mi w starting at the junction of the Sebastopol and Occidental rd (toward Sebastopol, on the lower half of the borrow pit on the s side of the Sebastopol-Santa Rosa highway) Comment
  UC75838  Centromadia fitchii Miss M. Alice King 1897-6-1 Sonoma near Healdsburg Comment
  CHSC28850  Cerastium arvense Jane A. Rogers 1979-4-15 10 Sonoma Ca. 100 ft. w of Hwy. 1, ca. 1/4 mi. n of intersection of Hwy. 1 and Bay Flat Rd. in Bodega Bay. 15 Comment
  UC1084464  Cerastium arvense G. Thomas Robbins 1937-6-6 228 Sonoma hills 2 - 3 mi. e. of Bodega Bay Comment
  CAS-BOT-BC384977  Cerastium arvense Catherine Best 1981-4-4 s.n. Sonoma Coleman Valley Road about 4 miles west of Occidental Comment
  HSC4104  Cerastium glomeratum F. Demostene 1966-4-1 2 Sonoma 2 mi. E of Healdsburg Comment
  CAS-BOT-BC400224  Ceratophyllum demersum Greg de Nevers 1996-10-18 10888 Sonoma Pepperwood Natural Preserve. 3450 Franz Valley Road. In Biggest Double Pond 487 Comment
  UCD162158  Cercocarpus betuloides D. O. Burge; K. Zhukovsky, A. Ash, M. Schwager 2014-3-23 1512 Sonoma Hooker Creek watershed. 450 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-BC279788  Chamaemelum fuscatum Philip A. Munz 1952-3-23 17351 Sonoma 2 miles south of Asti Vineyard (Italian Swiss Colony) Comment
  CAS-BOT-BC166919  Chenopodium Peter Rubtzoff 1974-9-14 7892 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  UCD166094  Chenopodium Peter Rubtzoff 1971-7-23 6616 Sonoma Laguna, Chileno Valley. Comment
  UCR121475  Chlorogalum pomeridianum George K. Helmkamp, E. A. Helmkamp 2000-6-18 5697 Sonoma Outer North Coast Ranges, along Calif. Hwy 128, 0.5 mi south of Mendocino Co. line 381 Comment
  CAS-BOT-BC499261  Chlorogalum pomeridianum J. W. Congdon 1880-5-1 s.n. Sonoma unspecified Comment
  SEINET3992037  Chlorogalum pomeridianum Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-7 15089 Sonoma In chaparral, 2 miles North of Geyserville Comment
  JEPS128347  Chlorogalum pomeridianum var. pomeridianum Roger Raiche 2000-5-28 118 .00 Sonoma The Cedars, (shown on SLT maps as Marshall Creek but this is not the name on USGS topo sheets). Gualala River, Wheatfield Fork watershed. Comment
  JEPS51212  Chlorogalum pomeridianum var. pomeridianum Glen Keator 1967-6-26 SN 3 Sonoma 1/2 mi e Occidental Comment
  CAS-BOT-BC191507  Chorizanthe cuspidata var. villosa Alice Eastwood 1915-6-29 4832 Sonoma Bodega Point Comment
  CAS-BOT-BC376251  Chorizanthe membranacea Greg de Nevers 1995-5-2 10717 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. On south slope of rock west of High Hill 487 Comment
  CAS-BOT-BC173825  Chrysanthemum Peter Rubtzoff 1970-9-3 6369 Sonoma Marsh off west side of Highway 1, 0.7 miles southeast of Salmon Creek crossing. Comment
  UCR279636  Cichorium intybus Peter Rubtzoff 1966-8-25 5808 Sonoma Laguna de Santa Rosa, east of Graton, between Occidental and Guerneville roads 23 Comment
  RSA135376  Circaea alpina subsp. pacifica Volney Rattan 1877-6-13 s.n. Sonoma Guernville Comment
  CAS-BOT-BC284426  Cirsium brevistylum John Thomas Howell 1930-7-27 5400 Sonoma 1 mile north of Fort Ross Comment
  UCD160834  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
  UC894320  Cirsium occidentale var. venustum A. A. Heller 1902-6-24 5753 Sonoma near Burke's Sanitarium Comment
  RSA666353  Cirsium occidentale var. venustum Barbara Ertter, Lincoln Constance 1993-7-10 12100 Sonoma 5 miles beyond pavement on Rockpile Road west of Lake Sonoma (road to Annapolis) Comment
  UCD130426  Cirsium occidentale var. venustum Frederica Bowcutt 1994-6-25 1906 Sonoma Sugarloaf Ridge State Park, about 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. About 0.25 miles N of Vista Trailhead along Gray Pine Trail. Comment
  CAS-BOT-BC280541  Cirsium quercetorum John Thomas Howell 1938-7-3 13953 Sonoma Stony Point Comment
  CAS-BOT-BC280537  Cirsium quercetorum John Thomas Howell 1937-6-6 13047 Sonoma 7 miles n. of Petaluma on Stony Point road Comment
  CAS-BOT-BC285755  Cirsium remotifolium Alice Eastwood; John Thomas Howell 1939-6-11 7414 Sonoma Near Triniti P. O., Hood Mt. Range Comment
  RSA0070873  Cirsium remotifolium Marcus E. Jones 1882-7-18 3385 Sonoma Duncan's Mills. Comment
  UCD159440  Cirsium vulgare D. S. Park; S. Nicole, M. Armijos, H. Sandhu 2010-8-3 197 Sonoma Roadside population along road leading to Bodega Marine Labs. Abundant. 7 Comment
  CAS-BOT-BC285802  Cirsium vulgare Walter Knight; Irja Knight 1963-8-26 183 Sonoma Hendren Ranch - Two Rocks Comment
  CAS-BOT-BC162607  Clarkia W. R. Dudley 1893-9-9 s.n. Sonoma Russian River Comment
  UC582991  Clarkia amoena P. A. Munz 1936-8-8 14311 Sonoma coast 5 mi n Jenner Comment
  SBBG21142  Clarkia amoena V. Haraden 1940-7-13 10 Sonoma ca. 10 mi E of Bodega Bay 304 Comment
  CAS-BOT-BC161061  Clarkia amoena subsp. amoena D. E. Breedlove 1962-6-6 2887 Sonoma Along State Highway 128, 0.9 mile northwest of U.S. Highway 101 at Cloverdale 106 Comment
  UC423074  Clarkia amoena subsp. amoena Miss C. M. Hoak Aug. 1912 Sonoma Monte Rio Comment
  CAS-BOT-BC161047  Clarkia amoena subsp. amoena Mary P. Wells 1981-8-2 s.n. Sonoma The Sea Ranch Comment
  RSA458845  Clarkia amoena subsp. amoena Unspecified 1941-6-20 s.n. Sonoma Between Santa Rosa and Ukiah, Highway 101 Comment
  POM171626  Clarkia amoena subsp. huntiana Charlotte M. Hoak 1912-08 s.n. Sonoma Monte Rio. Comment
  UC1143221  Clarkia amoena subsp. huntiana H. and M. Lewis 1951-7-10 870 Sonoma 0.1 mi w Mark West Springs Comment
  POM32042  Clarkia amoena subsp. huntiana Katherine Brandegee 1908-1 s.n. Sonoma Glen Ellen Comment
  SEINET4085089  Clarkia breweri O. M. Clark 1932-1 5292 -A Sonoma North Petaluma. Comment
  CAS-BOT-BC172215  Clarkia concinna M. S. Baker 1898-5-7 s.n. Sonoma Glen Ellen Comment
  SEINET10492115  Clarkia concinna Tim Holtsford 1992-5-23 Holtsford 920523 -3 Sonoma Mark west springs rd, 0.1 mi w of ursuline rd, at milepost "ldtr 362+00." W- Facing slope with oaks, rhus, heracleum. Clarkia unguiculata is sympatric. Comment
  JEPS43616  Clarkia concinna subsp. concinna W. L. Jepson 1921-6-2 9293 Sonoma Alder Glen School Hopland 176 Comment
  RSA299011  Clarkia concinna subsp. concinna W. L. Jepson 1921-6-2 9293 Sonoma Alder Glen School. Hopland, N Sonoma County 177 Comment
  CAS-BOT-BC163150  Clarkia imbricata John Thomas Howell 1945-7-18 21315 Sonoma Dry slope bordering Pitkin Marsh 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-BC164746  Clarkia rhomboidea Milo S. Baker 1926-4-10 220 a - Son. Ser. Sonoma Mt. St. Helena - 1 mi. S.E. of Inn Comment
  UCD100578  Claytonia exigua J. Adams; J. Weick, Daehler, Lu 1993-5-8 286 Sonoma about 40 air miles N of San Francisco; about 11 air miles E of Santa Rosa and 2.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge and S of Red Mtn 1 mile. Comment
  RSA6471  Claytonia exigua subsp. exigua Jens Clausen 1933-3-26 745 Sonoma Harrison Grade, betwen Grtaon and Occidental. In orchard, gravelly soil. Comment
  RSA178002  Claytonia gypsophiloides R. F. Thorne 1965-4-19 34292 Sonoma Near county dump on Stoetz Road off of Harrison Grade ca. 2 miles NNE of Occidental. 183 Comment
  UC754333  Claytonia gypsophiloides R. Bacigalupi 1948-3-6 2855 Sonoma 2 mi w Skaggs Springs Comment
  UC796638  Claytonia gypsophiloides Ira L. Wiggins 1949-4-30 12062 Sonoma 6.8 mi e Santa Rosa (on road to Calistoga) Comment
  UCD33223  Claytonia gypsophiloides Beecher Crampton 1967-5-15 7924 Sonoma Lytton. Comment
  CAS-BOT-BC439406  Claytonia gypsophiloides F. G. Krauss 1894-5-1 s.n. Sonoma Mountains west of Calistoga 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
  POM164089  Claytonia parviflora A. A. Heller 1902-3-16 s.n. Sonoma Russian River, Near Trenton Comment
  CAS-BOT-BC439635  Claytonia parviflora subsp. parviflora Peter Rubtzoff 1953-5-17 1390 Sonoma South of Guerneville (Neeley Hill area). Comment
  SEINET9321581  Claytonia perfoliata John Nelson, Wnek, R. 2000-3-7 20938 Sonoma Fern Grove Cottages Comment
  UCD123945  Claytonia perfoliata Caitlin Lewis; William Mutch 1993-4-17 19 Sonoma Sugarloaf Ridge State Park. About 40 miles N of San Francisco, 11 air miles E of Santa Rosa and 2.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge and S of Red Mtn 1 mile. Near visitor center. Along Sonoma Creek. 365 Comment
  CAS-BOT-BC443871  Claytonia sibirica Peter Rubtzoff 1964-7-3 5340 Sonoma Bodega Bay Marsh. Comment
  CAS-BOT-BC366861  Clematis lasiantha Greg de Nevers 1998-4-11 11152 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. At Neuman Center on Porter Creek Road 400 Comment
  CHSC43170  Collinsia grandiflora Jeffrey D. Prouty 1979-4-11 223 Sonoma Ca. 7 mi n of Santa Rosa. Grassy slope ca. 100 yds w of Mark West Springs Rd. ca. 300 yds n of jctn. with Michelle Way. 164 Comment
  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
  UC1238966  Collinsia greenei Freed W. Hoffman 1950-6-16 3616 Sonoma near Mercuryville; North Coast Ranges Comment
  SEINET7067331  Collinsia heterophylla A. G. Vestal 1947-5-16 s.n. Sonoma About 4.5 miles East of Windsor on Faught Road. Coordinate datum: NAD27. UTM Zone 10, 521654mE, 4261292mN. Comment
  UC192679  Collinsia sparsiflora var. arvensis Michener and Bioletti 1893-4-1 Sonoma Kenwood Comment
  UC76208  Collinsia sparsiflora var. arvensis Milo S. Baker 1898-4-2 Sonoma near Santa Rosa Comment
  POM14840  Collinsia sparsiflora var. sparsiflora A. A. Heller, H. E. Brown 1902-4-11 5268 Sonoma Bodega Bay Comment
  JEPS87235  Collinsia tinctoria Jack and Betty Guggolz 1992-6-13 1311 Sonoma w side Black Mtn (Anderson Trail, e of Geyserville) 609 Comment
  UC1238979  Collinsia tinctoria Freed W. Hoffman 1948-8-2 2356 Sonoma Spring Mountain Road to St. Helena near summit St. Helena; North Coast Ranges, Spring Mountain Road 609 Comment
  UCSB21858  Conium maculatum McCarthy, Sharon 1965-4-16 Sonoma Sonoma Creek; approx. 0.5 mile north of bridge at Leveroni Rd., Sonoma 24 Comment
  CHSC446  Convolvulus soldanella A. Small 1954-6-4 Sonoma Bodego Comment
  CAS-BOT-BC286004  Conyza bonariensis Walter Knight; Irja Knight 1963-9-1 215 Sonoma Magnolia Ave., Petaluma Comment
  JEPS62607  Cordylanthus maritimus subsp. palustris T. I. Chuang with Fei-Mei Chuang 1970-8-25 6846 Sonoma Coastal salt marsh nw of Bodega Bay (U. C. Biological Reserve); U. C. Biological Reserve Comment
  SEINET13679568  Cordylanthus pallescens M. J. Williams, Wayne Roderick 1978-7-16 78- 228 -4 Sonoma Near Occidental. Comment
  CHSC52838  Cordylanthus pilosus subsp. pilosus L. R. Heckard; R. Bacigalupi, B. Doren 1971-9-11 2802 Sonoma 1/2 mile west on Lytton Springs road, about 2 miles north of Healdsburg. Comment
  JEPS83652  Cordylanthus pringlei R. Raiche 1987-6-20 70332 Sonoma N of Cazadero, The Cedars, Red Slide Creek at Rede Slice Falls. 304 Comment
  UC1012239  Cordylanthus tenuis subsp. brunneus Francis W. Pennell 1904-7-3 26044 Sonoma ne Kenwood (summit); Hoods Peak 701 Comment
  CAS-BOT-BC238235  Cordylanthus tenuis subsp. capillaris Lewis S. Rose 1962-8-6 62078 Sonoma 2 mi. ne. of Occidental 182 Comment
  JEPS79414  Cordylanthus tenuis subsp. capillaris Edward Lee with W. A. Setchell 1936-6-7 2188 Sonoma south ridge fire trail, Bohemian Grove Comment
  UCD130836  Corethrogyne filaginifolia Mary M. Hektner; Sue Dakuzaku 1974-6-19 27 Sonoma Sea Ranch, near State Highway 1, Unit 24 Owners' Map. 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-BC366870  Cornus glabrata Greg de Nevers 1998-4-27 11196 Sonoma Calistoga Road at Alpine Road, along Mark West Creek 121 Comment
  CAS-BOT-BC210431  Cornus sericea G. DeNevers 1981-5-2 907 Sonoma Pepperwood Ranch. Confluence of Leslie Creek and Mark West Creek Comment
  CAS-BOT-BC290296  Cotula coronopifolia Peter Rubtzoff 1951-7-14 451 Sonoma Pitkin Marsh, near Forestville. Northern half of Lower Marsh Comment
  CAS-BOT-BC427643  Crassula aquatica H. K. Wagnon 1989-5-23 1956 Sonoma Spring Lake Park and environs. Adjacent to Montgomery Drive. Adjacent to Spring Creek diversion channel 67 Comment
  RSA0073843  Crassula solieri Reid V. Moran, Charles Quibell 1991-5-15 31053 Sonoma Sonoma Valley Regional Park, 1.0 km east of Glen Ellen. 110 Comment
  CAS-BOT-BC143507  Crataegus gaylussacia Peter Rubtzoff 1959-5-30 4062 Sonoma Freestone Marsh Comment
  SJSU7519  Croton setiger L. S. Rose 1964-8-26 64065 Sonoma 6.5 mi NE of Penngrove 426 Comment
  JEPS75423  Crupina vulgaris Ken Stocking 1976-6-27 Sonoma se of Bennett Valley golf course (City of Santa Rosa land); Santa Rosa Comment
  CDA4478  Crupina vulgaris G. D. Barbe, Willa May Lowary, T. C. Fuller 1976-7-7 2185 Sonoma West of Matanzas Creek, southeast of Bennett Valley golf course, Santa Rosa. 0 Comment
  OBI51541  Crupina vulgaris Keith Wagnon 1989-7-3 s.n. Sonoma SE of Santa Rosa at Annadel State Park Comment
  CAS-BOT-BC190105  Crypsis schoenoides Peter Rubtzoff 1970-5-30 6243 Sonoma 5 miles north of Sears Point. Comment
  CDA36327  Crypsis schoenoides M. Lennox & D. Curle 2011-11-21 PDR# 1465995 Sonoma Hwy 121 Bridge (Tolay Creek). 0 Comment
  UCD60004  Crypsis vaginiflora Peter Rubtzoff 1971-8-9 6631 Sonoma Laguna, Chileno Valley. Comment
  UC598646  Cryptantha flaccida John Bright 1936-5-2 13106 Sonoma Healdsburg Comment
  UC1731386  Cryptantha milobakeri Dean W. Taylor 1998-6-22 16683 Sonoma 0.3 mi along ridge from Eagle Rock Substation ((ridge dividing Bear Canyon from Squaw Cr.)); North Coast Ranges, Mayacamas Mountains, The Geysers Geother 792 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
  RSA785747  Cucurbita Peter Rubtzoff 1958-8-9 3847 Sonoma Laguna de Santa Rosa north of Sebastopol near Occidental Road. Comment
  CAS-BOT-BC80747  Cupressus macnabiana C. B. Wolf; E. R. Johnson 1934-10-18 6198 Sonoma Head of Hooker Canyon, 4 7/10 mi. E. of Sonoma-Kenwood Road 548 Comment
  CAS-BOT-BC85426  Cupressus sargentii Roxana Stinchfield Ferris; L. Lorraine 1961-6-15 13565 Sonoma Harrison Grade 1.3 mi. from junction with Green Valley Road Comment
  CAS-BOT-BC85455  Cupressus sargentii Elizabeth McClintock 1967-9-10 4 Sonoma Ida Clayton Road on west side of Mount St. Helena Comment
  CAS-BOT-BC85468  Cupressus sargentii Rimo Carlo Felice Bacigalupi 1935-7-12 2374 Sonoma Pine Flat, southern end Mayacamas Range, 10 miles east of Healdsburg. Comment
  NY16824  Cupressus sargentii C. B. Wolf 1934-10-13 6183 Sonoma This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  UCR255870  Cuscuta Greg de Nevers 1996-11-10 10891 Sonoma Just north of Hwy 37, opposite Port Sonoma, Lower Ranch 1 Comment
  CAS-BOT-BC166912  Cuscuta howelliana Peter Rubtzoff; Nancy Harrison 1976-6-18 8648 Sonoma False Lake Meadow area, Annadel State Park. Comment
  RSA0022352  Cynodon Peter Rubtzoff 1970-9-13 6385 Sonoma Russian River bottom at Forest Hills (5.5 mi east of Guerneville). Comment
  UCR248761  Cynodon dactylon Peter Rubtzoff 1971-8-23 6658 Sonoma Meacham Road, 0.35 miles south of Stony Point Road 75 Comment
  RSA94465  Cynodon dactylon Peter Rubtzoff 1951-7-21 504 Sonoma Pitkin Marsh near Forestville; area between the Upper and the Lower marshes Comment
  POM369230  Cynoglossum grande Christopher Davidson 1977-6-20 6032 Sonoma Ridge Crest road, on Sea Ranch property south of Gualala River. 30 Comment
  RSA66916  Cynoglossum grande E. K. Balls 1951-5-3 16407 Sonoma Maacama (Miyakama) Creek, 2mi. from turn-off to Geyserville, from Petrifird Forest, Hwy 28, 610 Comment
  UCD119158  Cynoglossum grande Frederica Bowcutt; Kate Mawdsley 1996-3-24 2090 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. About 1 1/2 air miles W of Mount Saint John, along Brushy Peaks Trail just S of Malm Fork of Sonoma Creek. 426 Comment
  CAS-BOT-BC190428  Cynosurus echinatus John H. Thomas 1976-6-18 18359 Sonoma About 4.6 miles west of Warm Springs Dam, between Skaggs Springs and Geyserville. Comment
  CAS-BOT-BC190434  Cynosurus echinatus G. DeNevers 1981-5-11 1121 Sonoma Pepperwood Ranch. By the Garrison Gate. Comment
  CAS-BOT-BC190473  Cynosurus echinatus John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary P. Wells 1981-5-14 53954 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-BC350944  Cyperus Peter Rubtzoff 1970-9-2 6352 Sonoma Russian River bottom at Mirabel Park. Comment
  CAS-BOT-BC114518  Cyperus eragrostis Walter Knight; Irja Knight 1963-9-29 228 Sonoma In ditch on Lakeville hwy near freeway. Comment
  RSA365071  Cyperus eragrostis Christopher Davidson 1977-6-17 5876 Sonoma State Highway 12 ca. 3 miles west of Guerneville, along Russian River 15 Comment
  CAS-BOT-BC114353  Cyperus erythrorhizos Peter Rubtzoff 1958-9-21 4001 Sonoma Vacation Beach, near Guerneville. Open, wet sandy margin of Russian River. Comment
  UCD69401  Cyperus niger J. Thoits 1997-10-15 Sonoma Area north of Lakewood Hills, a gated community in Windsor (north of Santa Rosa), approximately 1-2 miles from Hwy 101 on the east side of the freeway. Comment
  CAS-BOT-BC113916  Cyperus niger var. castaneus John Thomas Howell; J. W. Stacey 1936-7-26 12675 Sonoma Pitkin Marsh, 5 mi. N of Sebastapol. Comment
  SEINET12078101  Cypripedium montanum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -257 Sonoma ca 10 mi from Warm Springs Dam enroute to Healdsburg on Old Stewart Point-Skaggs Springs Road 150 Comment
  RSA234557  Cypselea humifusa Peter Rubtzoff 1958-9-20 3991 Sonoma Laguna de Santa Rosa, northeast of Graton (0.5 mile north of Guerneville Rd.) Comment
  CAS-BOT-BC435194  Cypselea humifusa H. K. Wagnon 1991-10-14 1993 Sonoma Jack London State Park. Comment
  UC1606175  Cyrtomium falcatum Liz Parsons and Wendy Born Dec 1995 Sonoma s slope Hood Mt; Hood Mt Regional Park Comment
  SEINET9320073  Cytisus striatus John Nelson, Wnek, R. 2000-3-8 20949 Sonoma Along narrow stream edge w/ Umbellularia californica; W side of Guerneville just E of Fern Grove cabins on N side of River Rd (hwy 116) AC Moore Herbarium (USCH) Univ of S. Carolina Comment
  CAS-BOT-BC189803  Dactylis glomerata G. DeNevers 1981-5-20 1230 Sonoma Pepperwood Ranch. Leslie Creek and Mark West Creek. Comment
  UCD60196  Dactylis glomerata Mary M. Hektner; Sue Dakuzaku 1974-6-4 21 Sonoma Near State Hwy 1, Unit 24 Owners' Map, Sea Ranch; surrounding Kirkwood house. Comment
  CAS-BOT-BC445560  Damasonium californicum J. W. Congdon 1880-5-16 s.n. Sonoma Petaluma Comment
  CAS-BOT-BC445563  Damasonium californicum J. W. Congdon 1880-5-16 s.n. Sonoma Petaluma Comment
  UCD60469  Danthonia californica R. Tofsrud 1947-6-17 s.n. Sonoma 1.5 mi. S of Jenner Bridge, Hwy. 1. Comment
  UCD60470  Danthonia californica H. S. Yates 1936-5-16 5579 Sonoma 1 mile NE of Graton. 30 Comment
  UCD60499  Danthonia californica R. Tofsrud 1947-6-16 s.n. Sonoma 1 mi. N. of Valley Ford. Comment
  RSA126872  Danthonia californica var. americana H. S. Yates 1937-5-30 6541 Sonoma 1.5 miles northeast of Graton 30 Comment
  RSA94296  Danthonia californica var. californica Peter Rubtzoff 1952-5-31 1099 Sonoma Pitkin Marsh, near Forestville Comment
  CAS-BOT-BC154116  Datura Peter Rubtzoff 1953-11-1 1437 Sonoma Vacation Beach, near Guerneville, along Russian River 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
  CDA41056  Datura stramonium J. C. Violetti 1968-6-16 s.n. Sonoma Mrs. Lucas prop. 652 Brittain Lane, Santa Rosa. 0 Comment
  JEPS15985  Daucus carota W. L. Jepson 1931-7-19 15936 Sonoma Bodega, Watson School 152 Comment
  CAS-BOT-BC293809  Deinandra corymbosa James I. McMurphy 1910-6-7 s.n. Sonoma Between Napa Junction and Petaluma Comment
  RSA0005301  Delphinium bakeri Milo S. Baker 1939-05 9489 Sonoma Coleman Valley Comment
  POM150566  Delphinium decorum A. A. Heller, H. E. Brown 1902-4-11 s.n. Sonoma Bodega Bay Comment
  UCSC000516  Delphinium hesperium C. B. Churchill 1-May s.n. Sonoma Sonoma Cr. Canon Comment
  SDSU10039  Delphinium hesperium D. F. Howe 1963-7-2 3577 Sonoma 4.2 miles north of junction with #12 and #1. 30 Comment
  SBBG2150  Delphinium hesperium subsp. hesperium H. and M. Dearing 1933-5-14 384 Sonoma Cloverdale, Hopland grade Comment
  SBBG53023  Delphinium hesperium subsp. hesperium M. R. Benedict 1978-4-18 Sonoma Skaggs Springs Rd, 8 mi W of Geyersville Comment
  CAS-BOT-BC10099  Delphinium luteum John Thomas Howell 1931-4-18 6414 Sonoma Larkspur Rock, near Bodega Bay Comment
  CAS-BOT-BC10100  Delphinium luteum John Thomas Howell 1931-4-18 6415 Sonoma Larkspur Rock, near Bodega Bay Comment
  SEINET4445145  Delphinium luteum A. A. Heller, H. E. Brown 1902-1 Sonoma Comment
  RSA177904  Delphinium nudicaule Robert F. Thorne 1965-4-20 34359 Sonoma On Cavedale Road, 0.5 miles up from State Hwy 12, ca. 4 miles N of Sonoma. 244 Comment
  RSA59832  Delphinium nudicaule J. Ewan 1935-5-12 9234 Sonoma 1/2 mile interiorly from this station, mouth of Salmon Creek, NE shore of Bodega Bay, 1/4 mile from road on N side Comment
  SEINET12094689  Delphinium nudicaule F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -233 Sonoma ca 10 mi from Warm Springs Dam enroute to Healdsburg & US 101 on Old Stewart Point-Skaggs Springs Rd 150 Comment
  CAS-BOT-BC121725  Delphinium patens subsp. patens Gregory Clark de Nevers 1981-5-7 994 Sonoma Pepperwood Preserve, Hansel's Lake Comment
  POM302103  Delphinium variegatum H. C. Cantelow 1940-4-6 s.n. Sonoma 1/2 miles S of Shellville Comment
  RSA59844  Delphinium variegatum subsp. variegatum J. Ewan 1935-5-12 9240 Sonoma Los Guilicos, 2 miles N of Kenwood. Comment
  POM215765  Dendromecon rigida Jens Clausen 1933-3-25 725 Sonoma About 4 miles east of Warfield on the road to Oakville, on the Youngman Ranch 213 Comment
  CAS-BOT-BC583  Dendromecon rigida subsp. rigida Catherine Best 1981-4-4 s.n. Sonoma Staetz Lane, 3 miles north of Occidental. Comment
  CAS-BOT-BC585  Dendromecon rigida subsp. rigida Roxana Stinchfield Ferris; Laura Lorraine 1961-6-15 13558 Sonoma Green Valley Rd, 0.8 miles east of junction with Harrison Grade Rd. Comment
  UC1100296  Deschampsia cespitosa subsp. cespitosa Herbert L. Mason 1946-7-4 12885 Sonoma between Santa Rosa and Forestville (Pitkin Marsh); Pitkin Marsh Comment
  UC727687  Deschampsia cespitosa subsp. cespitosa Milo S. Baker 1946-5-13 11393 Sonoma marsh adjoining on n. Pitkin Ranch; Vine Hill Region Comment
  CAS-BOT-BC192604  Deschampsia cespitosa subsp. holciformis John H. Thomas 1976-6-16 18345 Sonoma Southern part of Sea Ranch, northwestern part of county, about 7 miles south of Gualala 30 Comment
  CAS-BOT-BC192611  Deschampsia cespitosa subsp. holciformis David D. Keck 1944-7-12 5514 Sonoma 1 mile S. of bridge across mouth of Russian River Comment
  UC573728  Deschampsia cespitosa subsp. holciformis H. S. Yates 1937-6-6 6586 Sonoma 5 mi. s. Jenner; Duncan Mills Quad. Comment
  UCD166087  Deschampsia cespitosa subsp. holciformis Peter Rubtzoff 1971-6-25 6571 Sonoma Intermittent lake off west side of Hwy. 1, 0.7 mi. southeast of Salmon Creek crossing. Comment
  CAS-BOT-BC201650  Deschampsia danthonioides J. W. Congdon 1880-5-6 s.n. Sonoma Petaluma Comment
  JEPS117076  Deschampsia danthonioides Peter Warner 2010-5-6 147 Sonoma Annadel State Park, in upland vernal pool ~250 m N of Canyon Trail, ~220 m W of Spring Creek, just S of old rock wall Comment
  CAS-BOT-BC201952  Deschampsia elongata Greg de Nevers 1996-6-17 10832 Sonoma CYO camp south of Occidental on Bohemian Hwy. 121 Comment
  CAS-BOT-BC201959  Deschampsia elongata A. A. Heller 1902-6-7 5653 Sonoma Bennett Valley, southeast of Santa Rosa Comment
  CAS-BOT-BC201966  Deschampsia elongata Peter Rubtzoff 1958-7-19 3754 Sonoma Laguna de Santa Rosa east of Sebastopol Comment
  CAS-BOT-BC227656  Deschampsia elongata Peter Rubtzoff 1964-6-24 5373 Sonoma Lower Salmon Creek Marsh. Comment
  CAS-BOT-BC227662  Deschampsia elongata Peter Rubtzoff 1969-8-29 6167 Sonoma Salmon Creek bottom ca. 1/2 mi. upstream from Hwy. 1 crossing Comment
  POM207093  Deschampsia elongata A. A. Heller 1902-6-7 5653 Sonoma Bennett Valley, southeast of Santa Rosa. Comment
  RSA126943  Deschampsia elongata H. S. Yates 1936-5-16 5607 Sonoma 1 mile N.W. of Mountain View School; Sebastopol 91 Comment
  RSA144369  Deschampsia elongata Roxana S. Ferris, Laura Lorraine 1961-6-14 13544 Sonoma Willow Creek Road between Occidental and Jenner, 5.7 miles from Jenner Comment
  UCD63734  Deschampsia elongata P. B. Kennedy 1916-7-17 Sonoma Del Mar. Comment
  UC9934  Dicentra formosa Harley P. Chandler 1900-5-25 669 Sonoma Bodega Comment
  CAS-BOT-BC208927  Dichanthelium acuminatum subsp. acuminatum Helen D. Geis 1903-8-1 569 Sonoma The Geysers Comment
  CAS-BOT-BC254477  Dichanthelium acuminatum subsp. acuminatum John Thomas Howell 1937-6-6 13032 Sonoma Pitkin Marsh Comment
  CAS-BOT-BC221848  Dichanthelium acuminatum subsp. fasciculatum John Roos; Lucille Roos 1956-9-1 6598 Sonoma The Geysers Comment
  POM89831  Dichanthelium acuminatum var. thermale Volney Rattan 1885-06 s.n. Sonoma Geysers. Comment
  CAS-BOT-BC502215  Dichelostemma capitatum A. A. Heller; H. E. Brown 1902-3-14 5065 Sonoma near Windsor Comment
  SEINET12048680  Dichelostemma capitatum F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -093 Sonoma ca 4 mi NNW of Sonoma on Cavedale Road from junction with CA 12, ca 1.2 mi N on Cavedale Rd from jct 244 Comment
  RSA173354  Dichelostemma capitatum subsp. capitatum Walter Knight 1965-6-6 1119 Sonoma [?????] Hill Road. Comment
  UCD139158  Dichelostemma congestum Frederica Bowcutt 1996-5-24 2170 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 and below confluence of Malm Fork. Along Meadow Trail. 381 Comment
  SBBG39521  Dichondra donelliana L. S. Rose 1970-4-18 70029 Sonoma 4 mi N of Sonoma 274 Comment
  CAS-BOT-BC376299  Digitalis purpurea Greg de Nevers 1992-6-26 10190 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Along Franz Creek 91 Comment
  CAS-BOT-BC183610  Digitaria Peter Rubtzoff 1971-8-23 6655 Sonoma Meacham Road, 0.35 mi. S of Stony Point Road. Comment
  RSA783841  Digitaria Peter Rubtzoff 1971-8-23 6645 Sonoma Stony Point Road, just S of Hwy 116. Comment
  SEINET11690138  Digitaria ischaemum J. T. Howell, Best, C. 1986-1 s.n. Sonoma Sonma State Campus, Rohnert Park Comment
  CAS-BOT-BC176364  Digitaria sanguinalis Peter Rubtzoff 1958-8-24 3929 Sonoma Vacation Beach, near Guerneville, along Russian River. Comment
  CAS-BOT-BC176370  Digitaria sanguinalis Peter Rubtzoff 1959-8-30 4243 Sonoma Drake's Beach, near Guerneville, along Russian River. Comment
  CAS-BOT-BC209111  Digitaria sanguinalis Catherine Best 1987-7-2 1299 Sonoma Along Todd Road about 1 mile from Llano Road Comment
  CAS-BOT-BC209114  Digitaria sanguinalis G. DeNevers 1981-9-12 1850 Sonoma On bar in Mark West Creek, at its confluence with Leslie Creek, Pepperwood Ranch. Comment
  UCD64005  Digitaria sanguinalis Collector Unknown 1941-11-1 Sonoma Santa Rosa Cr. by old S.P. R.R. Comment
  CAS-BOT-BC152035  Diplacus aurantiacus D. E. Breedlove 1980-6-27 44754 Sonoma Pepperwood Ranch W of Knights Valley Comment
  CAS-BOT-BC151880  Diplacus congdonii Milo S. Baker 1927-4-12 2073 a Sonoma S.E. slope Hood's Peak 335 Comment
  CAS-BOT-BC151753  Diplacus kelloggii Greg de Nevers 1993-5-17 10455 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, in Devil's Kitchen east of 3865 Franz Valley Rd. 457 Comment
  CAS-BOT-BC151750  Diplacus kelloggii A. A. Heller; H. E. Brown 1902-4-14 5282 Sonoma Near Mark West Springs 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
  UCD64557  Distichlis spicata Beecher Crampton 1957-7-11 4315 Sonoma At the western edge of Bodega Harbor, about 2 miles by road, west of the town of Bodega Bay. Comment
  JEPS76928  Dodecatheon hendersonii Robert M. Lloyd 1963-2-24 2051 Sonoma 3 mi ne Forestville (on road to US 101) Comment
  RSA17454  Dodecatheon hendersonii Elmer I. Applegate 1934-3-25 8856 Sonoma Sausal Creek, Pine Flat region. Comment
  UC1123264  Dodecatheon hendersonii B. O. Schreiber 1938-2-27 2467 Sonoma 2 mi wnw Mark West Springs; Healdsburg Quad. 121 Comment
  UC22415  Dodecatheon hendersonii J. Burtt Davy 1896-3-15 1672 Sonoma near Fort Ross; near Fort Ross Comment
  HSC49613  Dodecatheon hendersonii R. York 1979-4-8 200 Sonoma Along Hwy. 128; 1 mi. N of Calistoga Comment
  CAS-BOT-BC156312  Downingia concolor var. concolor Peter Rubtzoff 1969-5-3 6024 Sonoma Laguna de Santa Rosa, east of Sebastopol. Comment
  JEPS86773  Downingia concolor var. concolor Jack and Betty Guggolz 1990-5-4 1046 Sonoma 1.25 mi w Fulton Road (n side of Piner Road, in the sw corner of a Simi Winery vineyard) 30 Comment
  UC726434  Downingia concolor var. concolor A. A. Heller 1941-5-17 16135 Sonoma 2 mi n Windsor (on U.S. Highway 101) Comment
  RSA181927  Downingia concolor var. concolor John Weiler 1960-4-22 60101 Sonoma State Hwy 12; 1.7 miles N of the turn to the Sonoma State Home or 3.0 miles N of Agua Caliente. Comment
  JEPS29138  Downingia pusilla John H. Weiler 1961-4-30 6196 Sonoma 4.4 mi n Sears Point (along State Highway 37) Comment
  JEPS26987  Downingia pusilla Milo S. Baker 1934-4-10 7774 Sonoma 2 mi s Warfield R.R. sta. (n side of highway) Comment
  RSA123329  Drymocallis glandulosa var. wrangelliana H. S. Yates 1934-4-21 3755 Sonoma Near Bodega. 61 Comment
  CAS-BOT-BC71016  Dryopteris arguta J. W. Congdon 1880-1-11 s.n. Sonoma Petaluma Comment
  CAS-BOT-BC71013  Dryopteris arguta Dorothy Scherer 1997-5-7 096 Sonoma Along path south side of Fort Ross Cr. halfway from Hwy 1 to ocean, Fort Ross State Historic Park 36 Comment
  CAS-BOT-BC411377  Dudleya caespitosa Roxana S. Ferris 1932-5-27 8260 Sonoma N end of Bodega Bay Comment
  SEINET7067251  Dudleya caespitosa A. G. Vestal 1947-5-13 s.n. Sonoma South Sonoma Coast, about 1.3 miles north of Salmon Creek on Route 1. Coordinate datum: NAD27. Comment
  CAS-BOT-BC213758  Dudleya eastwoodiae Alice Eastwood 1900-7-4 s.n. Sonoma Bodega Point Comment
  SD71429  Dysphania ambrosioides Peter Rubtzoff 1958-8-16 3867 Sonoma Laguna de Santa Rosa north of Sebastopol (near Occidental Road) Comment
  UCD98787  Dysphania chilensis Peter Rubtzoff 1953-11-1 1440 Sonoma Vacation Beach, near Guerneville. Comment
  CAS-BOT-BC210130  Echinochloa Peter Rubtzoff 1976-8-29 8834 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC210133  Echinochloa Peter Rubtzoff 1973-9-4 7296 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  UCD167956  Echinochloa James Neilson 1981-7-16 4048 Sonoma Mayacmas Mountains. Big Sulphur Cr. At bridge crossing road to Cloverdale. (Exact location unknown. Coordinates estimated by label maker.) Comment
  CAS-BOT-BC176373  Echinochloa crus-galli Peter Rubtzoff 1953-11-1 1430 Sonoma Vacation Beach, near Guerneville, along Russian River. Comment
  UCD148392  Echinochloa crus-galli Peter Rubtzoff 1956-9-15 2901 Sonoma Atascadero Creek Marsh. Comment
  UCD166224  Echinodorus berteroi Peter Rubtzoff 1970-8-5 6297 Sonoma Five miles north of Sears Point. 11 Comment
  UCD150856  Elatine brachysperma 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
  UCD166256  Eleocharis Peter Rubtzoff 1970-8-18 6313 Sonoma 5 miles north of Sears Point. 11 Comment
  CAS-BOT-BC274415  Eleocharis Peter Rubtzoff 1970-8-18 6313 Sonoma 5 miles north of Sears Point. Comment
  CAS-BOT-BC112662  Eleocharis parvula Peter Rubtzoff; Vanette Bunyan 1973-8-25 7257 Sonoma Lower Salmon Creek Marsh. Just east of Hwy 1. Comment
  CAS-BOT-BC112205  Eleocharis radicans Peter Rubtzoff 1962-7-28 5006 Sonoma Laguna de Santa Rosa east of Cunningham, near Llamo Road. Comment
  CAS-BOT-BC112271  Eleocharis rostellata Peter Rubtzoff 1951-7-21 495 Sonoma Pitkin Marsh, near Forestville. Southern half of Lower Marsh Comment
  RSA92834  Eleocharis rostellata Peter Rubtzoff 1951-7-8 404 Sonoma Pitkin Marsh, near Forestville: Lower part of Upper Marsh Comment
  UC768755  Elymus californicus R. F. Hoover 1941-5-14 5093 Sonoma in hills sw of Occidental (near Joy District School) Comment
  SEINET266627  Elymus glaucus P. G. Connors 1990-7-19 96 Sonoma Bodega Head. Comment
  CDA37196  Elymus glaucus subsp. glaucus CDFA Staff 2005-5-19 s.n. Sonoma Sugarloaf Ridge State Park; near junction of Meadow, Hillside, and Gray Pine Trails, east of bridge across Sonoma Creek. 0 Comment
  CAS-BOT-BC203727  Elymus glaucus subsp. glaucus H. S. Yates 1937-6-5 20815 Sonoma 3 miles S. S. E. of Wildwood Comment
  UC573704  Elymus glaucus subsp. virescens H. S. Yates 1936-5-17 5624 Sonoma 1 1/2 mi e Bodega Port; Duncan Mills Quadrangle 121 Comment
  CAS-BOT-BC165906  Epilobium Peter Rubtzoff 1986-9-28 9746 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville Comment
  UCD105291  Epilobium brachycarpum K. Evan 1932-8-28 s.n. Sonoma Near Petrified Forest. Comment
  RSA3446  Epilobium canum subsp. latifolium F. G. Krauss 1893-11-2 s.n. Sonoma Krauss Ranch Comment
  CAS-BOT-BC268107  Epilobium ciliatum subsp. ciliatum Peter Rubtzoff 1969-8-26 6150 Sonoma Marsh on River Road, ca. 3 miles west of Fulton. Comment
  UC455442  Epilobium ciliatum subsp. ciliatum I. J. Condit 1908-8-13 Sonoma Guerneville Comment
  RSA800032  Epilobium ciliatum subsp. ciliatum Peter Rubtzoff 1954-7-4 1520 Sonoma Austin Creek Marsh. In an area adjoining the marsh in the southwest. Comment
  CAS-BOT-BC262950  Epilobium ciliatum subsp. watsonii Peter Rubtzoff 1954-8-10 1681 Sonoma Bodega Head Marsh. Comment
  UC1042438  Epilobium ciliatum subsp. watsonii Peter Rubtzoff 1951-7-14 444 Sonoma on edge of thicket near creek (s edge of Lower Marsh, near Forestville); Pitkin Marsh, Lower Marsh Comment
  CAS-BOT-BC368005  Epilobium densiflorum Greg de Nevers 1989-8-28 9098 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. At Skovie. 400 Comment
  CAS-BOT-BC210075  Equisetum Peter Rubtzoff 1973-8-21 7255 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  UCD165328  Equisetum Peter Rubtzoff 1973-8-21 7255 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  CAS-BOT-BC164072  Equisetum Peter Rubtzoff 1962-5-25 4846 Sonoma Atascadero Creek Marsh. Comment
  CAS-BOT-BC164678  Equisetum Peter Rubtzoff 1973-8-31 7291 Sonoma Upper Green Valley Marsh area. Comment
  UCD148417  Equisetum laevigatum Peter Rubtzoff 1959-8-22 4230 Sonoma South Fork Eel River in Edward R. Hickey State Park. Comment
  CAS-BOT-BC57641  Equisetum telmateia Mary P. Wells 1983-8-3 s.n. Sonoma Timber Preserve of Oceanic of California, Inc., The Sea Ranch Comment
  CAS-BOT-BC57649  Equisetum telmateia Peter Rubtzoff 1954-6-6 1468 Sonoma Guerneville Marsh Comment
  CAS-BOT-BC57650  Equisetum telmateia Peter Rubtzoff 1954-9-6 1741 Sonoma Guerneville Marsh Comment
  CAS-BOT-BC312697  Eragrostis Peter Rubtzoff 1970-9-2 6357 Sonoma Russian River bottom at Mirabel Park. Comment
  CAS-BOT-BC328124  Eragrostis Peter Rubtzoff 1965-8-16 5601 Sonoma Russian River bottom at Forest Hills (5.5 miles east of Guerneville). Comment
  CDA2089  Eragrostis cilianensis E. P. Delfino Sonoma 4051 Harrison Grade Road, Sebastopol. 0 Comment
  UCD62972  Eragrostis cilianensis L. Whitney 1935-10-2 3634 Sonoma Santa Rosa. Comment
  CAS-BOT-BC213573  Eragrostis hypnoides Peter Rubtzoff 1961-8-25 4718 Sonoma Forest Hills, east of Guerneville, bottom of Russian River Comment
  CAS-BOT-BC366888  Eragrostis mexicana subsp. virescens Greg de Nevers 1997-9-29 11096 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Mark West Creek at Leslie Creek junction 400 Comment
  CAS-BOT-BC284185  Eragrostis pectinacea var. pectinacea Peter Rubtzoff 1954-7-3 1517 A Sonoma Vacation Beach near Guerneville, Russian River Comment
  CAS-BOT-BC284192  Eragrostis pectinacea var. pectinacea G. DeNevers 1981-6-26 1660 Sonoma Pippindale Garden, Pepperwood Ranch Comment
  CAS-BOT-BC164045  Erechtites glomeratus Peter Rubtzoff 1960-10-29 4577 Sonoma Bodega Harbor Marsh. Comment
  RSA0062824  Ericameria arborescens Greg de Nevers 1989-9-5 9100 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 100 Comment
  SD40106  Ericameria ericoides subsp. ericoides Edith A. Purer 1932-7-24 Sonoma Bodega Bay 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-BC293624  Erigeron biolettii Walter Knight; Irja Knight 1963-10-27 411 Sonoma Spring Mt. Road Comment
  RSA696822  Erigeron glaucus J. Russell Bruff 1936-8-21 s.n. Sonoma Bodega Bay region Comment
  CAS-BOT-BC224150  Eriodictyon californicum Roxana S. Ferris; Laura Lorraine 1961-6-15 13555 Sonoma Green Valley Road 0.8 mi. E of junction with Harrison Grade Road Comment
  CAS-BOT-BC224153  Eriodictyon californicum Walter Knight; Irja Knight 1963-12-27 469 Sonoma Summit, Pine Flat Rd. Comment
  SEINET12320783  Eriodictyon californicum W. Knight, Knight, I. 1981-1 3974 Sonoma 3.1 mi up Cavedale Rd from junction of St Rt 12 Comment
  JEPS128291  Eriogonum cedrorum Roger Raiche 2008-7-26 018 .08 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  RSA339415  Eriogonum cedrorum Roger Raiche 1984-6-23 40235 Sonoma The Cedars, north of Cazadero, headwaters of East Austin Creek, area called Red Slide. 549 Comment
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Oct 17 2013
  JEPS82262  Eriogonum compositum var. compositum Roger Raiche 1983-6-4 30373 Sonoma s side Sweetwater Springs Road 3.9 mi w its origin at West Side Highway ((above Porter Creek e of its intersection with John Gordon Creek)) Comment
  CAS-BOT-BC259258  Eriogonum latifolium John Thomas Howell 1930-7-27 5415 Sonoma 4 miles north of Bodega Bay Comment
  RSA197065  Eriogonum latifolium Noel Holmgren, James L. Reveal 1966-6-6 2648 Sonoma Just north of Ocean View. On bluff above shore line (form away from immediate coastal influence). Comment
  UCSB50229  Eriogonum latifolium Gray, John 1976-5-5 Sonoma Bluff above Carment State Beach; T6N R11W 15 Comment
  CAS-BOT-BC259472  Eriogonum luteolum Margaret J. Williams; Wayne Roderick 1978-7-16 78- 228 -2 Sonoma Near Occidental Comment
  CAS-BOT-BC259484  Eriogonum luteolum John Thomas Howell 1931-9-26 8091 Sonoma 2 miles from Monte Rio on road to Camp Meeker Comment
  JEPS128231  Eriogonum luteolum Roger Raiche 1999-10-9 046 .99 Sonoma The Cedars. Barnes' Blue Spring Complex. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC259479  Eriogonum luteolum David L. Morgan 1955-7-28 s.n. Sonoma 5 miles west of Petaluma Comment
  UCD100298  Eriogonum luteolum Frederica Bowcutt 1994-6-25 1912 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 Grey Pine Trail about 1/2 way between Bushy Peak Trail and Meadow Trail. 530 Comment
  UC75786  Eriogonum nudum var. nudum Miss M. Alice King April 1897 Sonoma near Healdsburg Comment
  CAS-BOT-BC261686  Eriogonum nudum var. nudum Walter Knight; Irja Knight 1963-9-1 132 Sonoma Sulphur Creek Rd, 1 mi from US 101, Cloverdale Comment
  CDA401  Eriogonum vimineum D. G. Kelch 2003-7-14 3 .378 Sonoma Cavedale Road. Comment
  CAS-BOT-BC262389  Eriogonum vimineum G. DeNevers 1981-5-23 1268 Sonoma Pepperwood Ranch. Along Franz Valley Road. Bottom of Road on SW side Comment
  UCD131468  Eriophyllum confertiflorum var. confertiflorum Frederica Bowcutt 1996-5-19 2129 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles N of Kenwood, and 18 air miles NW of Napa. Adobe Canyon, about 1/4 air mile NE of Red Mtn. Along Bald Mtn. Trial. 633 Comment
  CDA5239  Eriophyllum lanatum var. achilleoides G. D. Barbe 1982-5-27 3619 Sonoma 3.6 miles east of Stewarts Point (Highway 1), on Skaggs Spring Road. 0 Comment
  UC494110  Eriophyllum lanatum var. achilleoides H. E. and S. T. Parks 1930-5-10 837 Sonoma Knights Valley Comment
  CAS-BOT-BC301148  Eriophyllum lanatum var. achilleoides L. Constance 1933-5-20 E 26 Sonoma 1 mile north of Healdsburg Comment
  CAS-BOT-BC301280  Eriophyllum lanatum var. arachnoideum J. Clausen 1935-5-24 1086 Sonoma 5.1 mi. S. of Jenner on the Bodega road Comment
  CAS-BOT-BC301283  Eriophyllum lanatum var. arachnoideum G. DeNevers 1981-4-25 825 Sonoma Pepperwood Ranch. Lower Pepperwood entrance Comment
  CAS-BOT-BC301297  Eriophyllum lanatum var. arachnoideum Marcus E. Jones 1882-7-17 2773 Sonoma Duncan's Mills Comment
  RSA603483  Eriophyllum lanatum var. arachnoideum Jens Clausen 1935-5-24 1086 Sonoma 5.1 miles S of Jenner, on the Bodega Road. Comment
  UC133116  Eriophyllum lanatum var. arachnoideum Alice Eastwood 1900-9-30 Sonoma Bodega Point Comment
  SD88414  Eriophyllum lanatum var. grandiflorum Darley F. Howe 1972-4-30 Sonoma Bodega Bay Comment
  SEINET12183675  Erodium brachycarpum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -247 Sonoma ca 10 mi from Warm Springs Dam enroute to Healdsburg & US 101 on Old Stewart Point-Skaggs Springs Rd 150 Comment
  UCD103118  Erodium brachycarpum Frederica Bowcutt 1996-5-19 2123 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. Lower Bald Mountain trail. 426 Comment
  UCD103125  Erodium brachycarpum John Thomas Howell 1965-3-25 s.n. Sonoma Southwest of Sonoma. Comment
  CDA34797  Erodium moschatum Peter Warner 2010-3-29 124 Sonoma 1670 Bloomfield Road, ~ 3 km south of the center of Sebastopol. Comment
  CAS-BOT-BC41436  Eruca vesicaria subsp. sativa Milo S. Baker 1935-3-1 8025 Sonoma About 5 miles form Santa Rosa on road to Sebastopol. Comment
  UCD167023  Eryngium aristulatum James Neilson 1981-8-21 4043 Sonoma Mayacmas Mountains. Abril property, 1/4 mi. east of headwaters of Truit Creek. (Exact location unknown, coordinates estimated by label maker.) Comment
  UC1307396  Eryngium aristulatum var. aristulatum Peter Rubtzoff 1954-8-12 1695 Sonoma Bennett Mt. Lake Comment
  UC1365628  Eryngium aristulatum var. aristulatum Peter Rubtzoff 1958-4-26 Sonoma e. Sebastopol (Laguna de Santa Rosa); Laguna de Santa Rosa Comment
  POM161245  Eryngium armatum Rimo Bacigalupi 1928-6-19 1884 Sonoma Mouth of Salmon Creek, 2 miles north of Bodega Bay Comment
  SBBG5184  Eryngium armatum H. and M. Dearing 1939-5-14 3355 Sonoma bluffs above the sea, Bodega State Park [Bodega Dunes State Beach] Comment
  CAS-BOT-BC153627  Erythranthe inodora Peter Rubtzoff 1960-6-9 4487 Sonoma Laguna de Santa Rosa area northeast of Graton, near the Laguna Road Comment
  SEINET6911603  Eschscholzia caespitosa W. P. Vestal, A. G. Vestal 1947-5-13 s.n. Sonoma Weedy grassland about 7.8 miles south-southeast of Annapolis; northwest Sonoma county. Comment
  RSA146385  Eschscholzia caespitosa subsp. caespitosa W. R. Ernst 1959-5-3 543 Sonoma About 1 mile southeast of Rionido Comment
  CAS-BOT-BC403696  Eschscholzia californica F. G. Krauss 1894-5-1 s.n. Sonoma Mountains west of Calistoga Comment
  POM149302  Eschscholzia californica subsp. californica A. A. Heller, H. E. Brown 1902-4-15 5301 Sonoma Santa Rosa Creek Comment
  UCD103207  Eucalyptus globulus Frederica Bowcutt 1997-7-18 2185 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Just south of midpoint between Mt. Hood and Red Mountain. Road on ridge West of Bear Ck. 365 Comment
  CAS-BOT-BC202766  Euonymus occidentalis H. E. McMinn 1922-6-7 190 Sonoma Above Monte Rio Comment
  RSA0059081  Euphorbia Greg de Nevers 1992-8-16 10244 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Rd. On Franz Valley School Road. 152 Comment
  JEPS117122  Euphorbia oblongata Peter Warner 2010-4-22 134 Sonoma State Hwy. 128 ~3.03 mi. (fr. N) at turnout on E side of road at metal gate, in adjacent disturbed grassland and across road, about 2 miles NW of Cloverdale. Comment
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Jul 7 2017
  CDA4869  Euphorbia oblongata T. C. Fuller 1985-5-31 20430 Sonoma East side of Arnold Drive, Highway 116, just north of culvert no. 45.19, ca. 7 km. south of El Verano. 0 Comment
  CAS-BOT-BC239716  Fabaceae Peter Rubtzoff 1974-6-2 7521 Sonoma Upper Green Valley Marsh Comment
  UC38545  Festuca idahoensis Michener and Bioletti 1893-6-10 100 Sonoma Hood's Peak Comment
  JEPS128389  Festuca microstachys Roger Raiche 2000-4-2 014 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC278884  Festuca occidentalis Catherine Best 1981-6-5 s.n. Sonoma About 6 miles east of Stewarts Point on Skaggs Springs Rd. Comment
  CAS-BOT-BC376431  Festuca occidentalis Greg de Nevers 1996-5-29 10823 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. In Devil's Kitchen. 400 Comment
  RSA123499  Festuca occidentalis H. S. Yates 1936-5-16 5610 Sonoma 1 mile NW of Mountain View School. 91 Comment
  HSC83427  Festuca rubra Mary M. Hektner 1974-7-20 156 Sonoma Sea Ranch, near Hwy. 1 Comment
  UCD66373  Festuca rubra Freed W. Hoffman 1944-7-1 1971 Sonoma Bodega Bay. Comment
  SEINET11690155  Festuca rubra W. Knight, Knight, I.; Howell, J. T. 1987-1 6276 Sonoma Todd Road Preserve 24 Comment
  CAS-BOT-BC304295  Filago pyramidata John Thomas Howell 1976-4-26 51595 Sonoma E of Geyserville on road to Geysers Comment
  UCSB50247  Fragaria chiloensis Gray, John 1976-5-1 Sonoma Bluff above Salmon Creek State Beach. T6N R11W. 18 Comment
  CAS-BOT-BC457579  Fragaria vesca subsp. californica A. A. Heller; H. E. Brown 1902-3-16 5074 Sonoma Russian River near Trenton Comment
  UCD112526  Frangula californica Frederica Bowcutt 1994-6-24 1899 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 Vista Trail about between Headwaters Trail and Gray Pine Trail. 457 Comment
  CAS-BOT-BC53275  Frangula californica subsp. californica John Thomas Howell 1938-7-3 13955 Sonoma 3 miles N. of Sebastopol Comment
  CAS-BOT-BC53282  Frangula californica subsp. californica Mrs. E. C. Sutliffe 1920-8-1 s.n. Sonoma Annapolis Comment
  CAS-BOT-BC62972  Frangula californica subsp. tomentella Roger Raiche 1985-11-29 50900 Sonoma NE. end of town of Healdsburg on Reservoir Hill. 121 Comment
  UCR248752  Frankenia salina Peter Rubtzoff 1970-5-30 6251 Sonoma San Francisco Bay Region, Five miles north of Sears Point 9 Comment
  CAS-BOT-BC217873  Fraxinus latifolia John Thomas Howell 1951-5-28 27498 Sonoma Laguna east of Sebastopol Comment
  CAS-BOT-BC218581  Fraxinus latifolia Walter Knight; Irja Knight 1963-10-27 446 Sonoma Spring Mt. Road Comment
  JEPS44085  Fraxinus latifolia W. L. Jepson 1903-10-4 2364 Sonoma near Guerneville; Bohemian Club Grove Comment
  JEPS82540  Fremontodendron californicum Roger Raiche 1984-5-4 40133 Sonoma North of Guerneville, Morrison Creek, Austin Creek State Recreational Area, headwaters of East Austin Creek 182 Comment
  CAS-BOT-BC130177  Fritillaria affinis John Thomas Howell 1924-3-22 289 Sonoma Camp Meeker Comment
  CAS-BOT-BC130186  Fritillaria affinis Stewart Wade 1927-4-1 s.n. Sonoma Healdsburg Comment
  UC3652  Fritillaria affinis M. L. Dinglass 1898-3-1 Sonoma Glen Ellen Comment
  CAS-BOT-BC508136  Fritillaria recurva J. P. Moore 1877-3-1 350 Sonoma Skaggs Springs Comment
  SEINET8480170  Fritillaria recurva M. J. Williams 1968-4-6 s.n. Sonoma Cavedale Road. 305 Comment
  RSA177936  Galium aparine Robert F. Thorne 1965-4-20 34333 Sonoma Parker Hill Rd, 2.5 miles N of Santa Rosa and 1 mile N of Sonoma County Hospital. 107 Comment
  UCD121623  Galium aparine Erik Beever 1993-5-8 222 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. 365 Comment
  UC28195  Galium bolanderi F. T. Bioletti June 1893 Sonoma top Hood's Peak Comment
  UCD160757  Galium californicum James A. Neilson Jr. 1975-5-23 3214 Sonoma Truit Creek on Big Sulphur Creek. (Elevation and coordinates estimated by label maker.) 388 Comment
  JEPS52870  Galium californicum subsp. californicum Lauramay T. Dempster and Jean Colton 1963-8-5 3874 Sonoma 2 mi w Cloverdale (on road to Boonville); Alder Glen Springs Comment
  JEPS52888  Galium californicum subsp. californicum Lauramay T. Dempster and G. L. Stebbins 1963-8-12 3910 Sonoma 1.7 mi n Fort Ross (on bluff overlooking ocean) Comment
  UCD160856  Galium nuttallii James A. Neilson Jr.; Teresa A. Sholars 1975-6-26 3277 Sonoma Mayacmas Mountains, Caldwell Pines area, ca. 3 1/2 miles west of Glenbrook and Bottle Rock Road, northeast Sonoma County. (Elevation and coordinates estimated by label maker.) 975 Comment
  SD123748  Galium parisiense J. C. Roos 1950-7-22 4875 Sonoma Sand bar along stream bed 2 miles east of Duncan Mills 60 Comment
  SEINET12515257  Galium parisiense var. leiocarpum Micheuer, Bioletti 1892-7-1 s.n. Sonoma Hoods Creek. Comment
  UCD121891  Galium porrigens P. G. Connors 1992-5-8 247 Sonoma Near rock outcrop on hillside. Comment
  UCD121906  Galium porrigens var. tenue UC Davis Botany 102 Students 1993-4-17 49 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 Sugarloaf Ridge. Near group campground. Comment
  UC1192015  Galium trifidum Malcolm A. Nobs and S. Galen Smith 1949-8-1 1110 Sonoma bog 2 mi e Stewart's Point (on road to Geyserville) Comment
  CAS-BOT-BC304343  Gamochaeta pensylvanica Greg de Nevers 1993-5-30 10463 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Rd 457 Comment
  UCR279603  Gamochaeta ustulata Peter Rubtzoff 1963-6-22 5186 Sonoma Bennett Mountain Lake [apparently = Ledson Marsh] 361 Comment
  CAS-BOT-BC303499  Gamochaeta ustulata John Thomas Howell 1947-6-26 s.n. Sonoma Cunningham Marsh Comment
  CAS-BOT-BC303502  Gamochaeta ustulata Peter Rubtzoff 1951-6-30 303 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh Comment
  CAS-BOT-BC182161  Garrya fremontii Walter Knight; Irja Knight 1963-12-27 465 Sonoma Summit, Pine Flat Rd. Comment
  RSA0055007  Garrya fremontii James R. Shevock 1972-3-28 1487 Sonoma Ida Canyon road near Mt. Helena. 609 Comment
  CAS-BOT-BC320560  Gastridium Peter Rubtzoff 1970-8-19 6334 Sonoma On Austin Creek beach, 0.5 miles north of Cazadero. Comment
  CAS-BOT-BC278692  Gastridium phleoides Peter Rubtzoff 1952-6-3 1148 Sonoma South slopes of Fitch Mtn., near Healdsburg Comment
  CAS-BOT-BC278685  Gastridium phleoides G. DeNevers 1981-5-30 1344 Sonoma Pepperwood Ranch. N of Hansel's corral Comment
  UCD66592  Gastridium phleoides Collector Unknown 1941-5-1 Sonoma Trinity Road. Comment
  UC903724  Gastridium ventricosum Milo S. Baker 1947-5-7 11746 Sonoma sw slope Hood Mt. (above Baker Ranch); sw slope of Hood Mt. 213 Comment
  JEPS102270  Gaudinia fragilis Jane Valerius and Dianne Lake 2002-6-25 s.n. Sonoma Cloverdale; scraped area NW of intersection of Asti Road and South Cloverdale exit ramp from Hwy 101. Comment
  UCD117454  Gaultheria shallon Mary M. Hektner; Cathy Hendel, Sue Dakuzaku 1974-6-21 045 Sonoma Unit 2 Owners' Map, Sea Ranch, near State Highway 1. Comment
  RSA0089559  Genista monspessulana Ann Howald 2015-4-1 3328 Sonoma North Coast Ranges: Stewarts Point-Skaggs Springs Rd, 16.5 miles west of intersection with Rockpile Rd, Wolf Creek drainage. 318 Comment
  CAS-BOT-BC193254  Genista monspessulana Mary P. Wells 1983-8-23 s.n. Sonoma Coast Highway near Milepost 43.58 Comment
  UCD169076  Gentiana affinis Mary M. Hektner; Cathy Hendel 1974-6-26 75 Sonoma Sea Ranch. Near State Highway 1, Unit 35-A Owner's Map. Comment
  UC405441  Gentiana affinis var. ovata Katharine Brandegee June 1905 Sonoma Bodega Bay Comment
  UC796669  Geranium dissectum Ira L. Wiggins 1949-4-30 12068 Sonoma 4 mi w Calistoga Comment
  UCD103404  Geranium molle Frederica Bowcutt 1994-5-21 1825 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, about 1.5 air miles N of Kenwood; about 18 air miles NW of Napa. Along meadow trail approx. 3/4 mile from trailhead. 396 Comment
  RSA144719  Gilia capitata Roxana S. Ferris, Laura Lorraine 1961-6-15 13569 Sonoma About 1/8 mile beyond County Dump Comment
  CAS-BOT-BC225282  Gilia capitata subsp. chamissonis Roxana S. Ferris 1932-5-27 8259 Sonoma Sand dunes, upper Bodega Bay Comment
  POM179724  Gilia capitata subsp. chamissonis J. T. Howell 1930-6-8 5272 Sonoma North end of Bodega Bay. Comment
  JEPS97637  Gilia capitata subsp. tomentosa Annetta M. Carter 1947-5-30 1842 Sonoma 2 mi. E of Occidental. Comment
  RSA0006670  Gilia pallida A. A. Heller 1902-6-23 11498 Sonoma Petrified Forest Comment
  POM65678  Gilia tricolor A. A. Heller, H. E. Brown 1902-4-4 5211 Sonoma Hills east of Santa Rosa Comment
  CAS-BOT-BC435015  Glinus lotoides Peter Rubtzoff 1969-8-24 6146 Sonoma Pond on River Road 3 mi. west of Fulton. Comment
  CAS-BOT-BC227639  Glyceria Peter Rubtzoff 1966-5-7 5707 Sonoma North side of Hessel Road, just west of Hwy. 116. Comment
  RSA786491  Glyceria declinata Peter Rubtzoff 1964-5-30 5325 Sonoma Santa Rosa Creek area about 1 mi E of the Laguna de Santa Rosa. Comment
  CAS-BOT-BC282732  Glyceria elata Peter Rubtzoff 1960-5-22 4414 Sonoma Laguna de Santa Rosa area east of Graton between Occidental and Guwerneville Roads Comment
  JEPS78861  Glyceria elata Edward Lee 1936-6-8 2222 Sonoma near Bohemian Grove entrance Comment
  CAS-BOT-BC282808  Glyceria leptostachya Peter Rubtzoff 1951-6-8 407 Sonoma Northern half of Lower Marsh, Pitkin Marsh near Forestville Comment
  UCD166179  Glyceria leptostachya Peter Rubtzoff 1969-7-5 6109 Sonoma Pond, 5.25 miles NE of Penngrove, near Lichan Road. Comment
  UCR244672  Glyceria occidentalis Peter Rubtzoff 1964-5-30 5324 Sonoma Santa Rosa Creek area about 1 mile east of the Laguna de Santa Rosa 24 Comment
  CAS-BOT-BC166687  Gnaphalium Peter Rubtzoff 1965-8-16 5606 Sonoma Russian River Bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC303844  Gnaphalium Alice Eastwood 1921-5-8 s.n. Sonoma Petaluma Comment
  CAS-BOT-BC166676  Gnaphalium chilense Peter Rubtzoff 1958-8-16 3884 Sonoma Laguna de Santa Rosa, north of Sepastopol, near Occidental Road. Comment
  CAS-BOT-BC166748  Gnaphalium chilense Peter Rubtzoff 1963-9-28 5281 Sonoma Fitch Mountain Grove, 2 miles east of Healdsburg. Comment
  RSA790990  Gnaphalium chilense Peter Rubtzoff 1954-9-4 1725 Sonoma Bodega Head Marsh. Comment
  CAS-BOT-BC166790  Gnaphalium palustre Peter Rubtzoff 1959-6-20 4164 Sonoma Willow Creek Marsh. Comment
  CAS-BOT-BC302697  Gnaphalium palustre Peter Rubtzoff 1955-8-21 2093 Sonoma Vacation Beach, near Guerneville, along Russian River, below the dam. Comment
  CAS-BOT-BC302683  Gnaphalium palustre Peter Rubtzoff 1951-8-19 655 Sonoma Pitkin Marsh, near Forestville. Just north of the Lower Marsh Comment
  CAS-BOT-BC261650  Gratiola Peter Rubtzoff 1969-6-14 6083 Sonoma Vernal pool, 6.5 miles northeast of Penngrove on Lichau Road 426 Comment
  CAS-BOT-BC261653  Gratiola Peter Rubtzoff 1967-7-30 5846 Sonoma Laguna de Santa Rosa, east of Sebastopol. Comment
  JEPS87218  Gratiola ebracteata Jack and Betty Guggolz 1992-5-6 1280 Sonoma about 1 1/4 mi nw Windsor 42 Comment
  UCD84290  Gratiola ebracteata Ayzik Solomeshch 2009-5-12 s.n. Sonoma Along Bennett Valley Road (between Santa Rosa and Glen Ellen). 189 Comment
  UCR279626  Gratiola ebracteata Peter Rubtzoff 1961-7-22 4664 Sonoma Bennett Mountain Lake [apparently = Ledson Marsh] 363 Comment
  CAS-BOT-BC251223  Gratiola ebracteata Peter Rubtzoff 1962-6-8 4883 Sonoma Bennett Mountain Lake. Comment
  RSA785226  Grindelia Peter Rubtzoff 1964-7-7 5392 Sonoma Laguna de Santa Rosa E of Graton. 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-BC305177  Grindelia hirsutula John Thomas Howell 1930-6-8 5222 Sonoma 8 miles w. of Petaluma on Bodega Road Comment
  CAS-BOT-BC305186  Grindelia hirsutula John Thomas Howell 1930-6-8 5256 Sonoma 1 mile east of Bodega Bay Comment
  JEPS86802  Grindelia hirsutula Jack and Betty Guggolz 1991-7-20 1210 Sonoma 2.25 mi nw Camp Meeker (along a road) 182 Comment
  UC74946  Guillenia lasiophylla unknown 1903-4-20 2629 Sonoma Mt. Helena Comment
  CAS-BOT-BC376285  Habenaria Greg de Nevers 1992-7-12 10217 Sonoma Field redacted by CAS, contact the data manager for more information 304 Comment
  UC38766  Hainardia cylindrica Mr. Leckenby June 1896 Sonoma Petaluma Comment
  UC30652  Harmonia nutans F. T. Bioletti 1892-5-15 Sonoma Hood's Peak; ; Hood's Peak, Sonoma Co. Comment
  CAS-BOT-BC306328  Hedypnois cretica John Thomas Howell 1931-4-18 6423 Sonoma At mouth of Salmon Creek, 2 miles n. of Bay Comment
  CAS-BOT-BC306861  Helenium bolanderi Paul F. Covel 1938-7-11 1429 Sonoma Coast Rd near Gualala River Comment
  CAS-BOT-BC262953  Helenium puberulum Peter Rubtzoff 1959-9-12 4260 Sonoma Willow Creek Marsh. Comment
  CAS-BOT-BC309579  Helenium puberulum G. DeNevers 1981-5-30 1386 Sonoma Pepperwood Ranch. Shore of Pippindale Pond Comment
  CAS-BOT-BC309584  Helenium puberulum D. E. Breedlove 1961-12-31 1442 Sonoma At S side of mouth of Russian River 6 Comment
  POM54893  Helenium puberulum A. A. Heller 1902-7-1 5795 Sonoma Lagoon at Sebastopol Comment
  RSA800482  Helenium puberulum Peter Rubtzoff 1962-7-28 5003 Sonoma Laguna de Santa Rosa, east of Cunningham, near Llano Road. Comment
  CAS-BOT-BC314739  Helianthella californica var. californica Catherine Best 1981-5-16 s.n. Sonoma About three miles east of Sonoma on Wood Valley Road Comment
  UC754291  Helianthus bolanderi R. Bacigalupi 1948-3-6 2853 Sonoma The Geysers, just above the resort. Comment
  CAS-BOT-BC305970  Helminthotheca echioides Mary P. Wells 1985-9-2 613 Sonoma Friends House, Rincon Valley, Santa Rosa Comment
  RSA800068  Hemizonia Peter Rubtzoff, Nancy Harrison 1974-9-7 7875 Sonoma Hinebaugh Creek in Rohnert Park, west of Commerce Blvd. crossing of the creek. Comment
  UCR244621  Hemizonia Peter Rubtzoff 1966-8-18 5791 Sonoma Laguna de Santa Rosa, c. 1 mi east southeast of Sebastopol 17 Comment
  CAS-BOT-BC268123  Hemizonia Peter Rubtzoff 1975-8-15 8323 Sonoma Laguna, Chileno Valley. Comment
  CAS-BOT-BC305996  Hemizonia Peter Rubtzoff 1969-8-28 6164 Sonoma Vernal pool area, 6.5 miles northeast of Penngrove on Lichau Road. 426 Comment
  RSA800147  Hemizonia Peter Rubtzoff 1962-10-23 5120 Sonoma Laguna de Santa Rosa area East of Graton, east of Cunningham (near Llano Road). Comment
  UCD166306  Hemizonia Peter Rubtzoff 1966-8-25 5804 Sonoma Laguna de Santa Rosa east of Graton, between Occidental and Guerneville Roads. Comment
  UCD166493  Hemizonia Peter Rubtzoff 1962-10-23 5120 Sonoma Laguna de Santa Rosa area East of Graton, east of Cunningham (near Llano Road). Comment
  UCD166494  Hemizonia Peter Rubtzoff 1964-8-26 5491 Sonoma Marsh 5 miles NE of Penngrove on Lichau Road. 213 Comment
  POM179723  Hemizonia congesta J. T. Howell 1930-6-8 5216 Sonoma 8 miles west of Petaluma on Bodega Road. Comment
  SD62035  Hemizonia congesta subsp. clevelandii Darley F. Howe 1965-8-14 Sonoma East of Santa Rosa. 120 Comment
  SD62041  Hemizonia congesta subsp. clevelandii Darley F. Howe 1965-8-3 Sonoma 4.4 miles west of Santa Rosa. Comment
  CAS-BOT-BC306225  Hemizonia congesta subsp. congesta John Thomas Howell 1930-6-8 5216 Sonoma 8 miles w. of Petaluma on Bodega Road Comment
  CAS-BOT-BC306244  Hemizonia congesta subsp. congesta James I. McMurphy 1908-9-1 s.n. Sonoma George's Vineyard, near Fulton Comment
  CAS-BOT-BC309685  Hemizonia congesta subsp. lutescens Lewis S. Rose 1964-8-26 64067 Sonoma 5 miles ne. of Penngrove 243 Comment
  CAS-BOT-BC309692  Hemizonia congesta subsp. lutescens James I. McMurphy 1909-8-8 701 c Sonoma Leddy Station between Santa Rosa and Sebastopol Comment
  CAS-BOT-BC309699  Hemizonia congesta subsp. lutescens J. McMurphy 1909-8-8 s.n. Sonoma Leddy Station, between Santa Rosa and Sebastopol Comment
  UC483683  Hemizonia congesta subsp. lutescens Milo S. Baker 1932-6-9 5746 Sonoma 1 mi e Occidental Comment
  UC963913  Hemizonia congesta subsp. lutescens Milo S. Baker 1946-1-1 11708 Sonoma bet. El Verano and Sears Point (Black Point Highway) Comment
  CAS-BOT-BC309667  Hemizonia congesta subsp. lutescens J. McMurphy 1909-7-10 504 Sonoma 4 miles north of Cloverdale Comment
  CAS-BOT-BC309712  Hemizonia congesta subsp. lutescens Catherine Best 1981-6-5 s.n. Sonoma Hwy. 1, one mile north of Jenner Comment
  CAS-BOT-BC309719  Hemizonia congesta subsp. lutescens H. M. Hall 1931-5-28 13104 Sonoma Bodega Bay 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
  CAS-BOT-BC309965  Hemizonia congesta subsp. luzulifolia James I. McMurphy 1909-8-9 714 -A Sonoma 4-1/2 miles south of Santa Rosa Comment
  CDA29448  Hemizonia fitchii Unknown 2009-6-25 PDR# 1535007 Sonoma In the vicinity of Santa Rosa. 0 Comment
  RSA81549  Hemizonia lutescens James I. McMurphy 1909-8-10 717 Sonoma About a mile W of Santa Rosa on road to Fulton. Comment
  RSA81599  Hemizonia luzulifolia subsp. rudis James I. McMurphy 1909-5-29 s.n. Sonoma Grade, ridge S of the Geysers. Comment
  RSA81679  Hemizonia multicaulis subsp. vernalis James I. McMurphy 1909-5-28 s.n. Sonoma About 1 mile W of Santa Rosa. Comment
  RSA227201  Heracleum maximum Peter Rubtzoff 1964-5-20 227201 Sonoma Brooks Gulch Marsh. Comment
  CAS-BOT-BC310186  Hesperevax sparsiflora var. brevifolia John H. Thomas 1976-6-15 18266 Sonoma Southern end of Sea Ranch, northwestern part of county, about 7 miles south of Gualala 30 Comment
  HSC100953  Hesperevax sparsiflora var. brevifolia Peter Warner 2011-5-13 192 Sonoma Jenner Headlands, Dairy Field, northern area, S of Johnson Ranch, ~300 m E of Hwy. 1. 121 Comment
  CAS-BOT-BC310216  Hesperevax sparsiflora var. sparsiflora G. DeNevers 1981-4-25 834 Sonoma Pepperwood Ranch. Lower Pepperwood entrance Comment
  HSC92191  Hesperocyparis goveniana A. T. Austin 1990-12-17 Sonoma Salt Point State Park Comment
Read comments
Jul 25 2018
  HSC1230  Hesperocyparis sargentii L. S. Rose 1969-8-17 69096 Sonoma 4 mi. NE of Occidental, Harrison Grade 244 Comment
  UCR49205  Hesperolinon L. F. LaPre 1987-7-30 s.n. Sonoma Socrates Mine, c. 9 mi. ENE of Geyserville 976 Comment
  RSA151707  Hesperolinon clevelandii H. K. Sharsmith 1947-5-30 3966 Sonoma Southern slope of Hood Mountain, volcanic rock, altitude 800 feet, near Grant line. 244 Comment
  RSA151834  Hesperolinon micranthum H. K. Sharsmith 1947-5-30 3965 Sonoma Southern slope of Hood Mountain, volcanic rock, altitude 800 feet, near Grant line. 244 Comment
  JEPS82315  Hesperolinon spergulinum Roger Raiche 1983-6-19 30411 Sonoma The Cedars; slopes of Red Slide Creek 243 Comment
  UC1212379  Hesperolinon spergulinum Helen K. Sharsmith 1952-6-18 4132 Sonoma near Pine Flat-Middletown road crossing (above Big Sulphur Creek); Inner North Coast Ranges, Mayacamas Range 762 Comment
  UC1212400  Hesperolinon spergulinum Milo S. Baker 1946-7-4 11525 Sonoma 2 mi ne Occidental; Harrison Grade Comment
  UCD95454  Hesperomecon linearis P. G. Connors 1992-5-14 256 Sonoma Bodega Marine Laboratory. On north slope of old dune. Comment
  UC1128116  Heteromeles arbutifolia J. B. Spring, R. W. Lundh 1932-7-8 101 Sonoma 1 mi n Sonoma; Napa Quad. 152 Comment
  RSA0075934  Heterotheca oregona Peter Rubtzoff 1953-11-1 1436 Sonoma Vacation Beach, near Guerneville. Banks of Russian River. Comment
  CAS-BOT-BC420942  Heuchera micrantha var. diversifolia D. E. Breedlove 1980-6-27 44763 Sonoma Pepperwood Ranch W of Knights Valley 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
  SD134002  Hoita macrostachya Greg de Nevers, Buddy Goatcher 1987-6-30 8228 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, Santa Rosa, at spring 99 Comment
  UCD158716  Hoita macrostachya Teresa A. Sholars 1976-9-9 s.n. Sonoma Mayacmas Mtns. Ca. 2.5 mi east of the junction of Socrates Mine Rd. and Pine Flat Rd., at the headwaters of Big Sulphur Creek. Elevation estimated by label maker. 975 Comment
  UCD164989  Hoita macrostachya Peter Rubtzoff; Nancy Harrison 1974-8-31 7857 Sonoma Pressley Road, 0.25 miles south of junction with Sonoma Mountain Road (2.7 miles north of Lichau Road junction). Comment
  CDA9234  Hoita orbicularis D. G. Kelch 1991-5-16 s.n. Sonoma Pitkin Marsh Comment
  CAS-BOT-BC227669  Holcus lanatus Peter Rubtzoff 1954-7-29 1605 Sonoma Guerneville Marsh. Comment
  UC573682  Holcus lanatus H. S. Yates 1937-5-30 6538 Sonoma 1 1/2 mi nne Graton; Sebastopol Quadrangle Comment
  UCD84957  Holcus lanatus David L. Morgan 1958-8-6 s.n. Sonoma Just SE of Valley Ford city limits. Comment
  CHSC52696  Holodiscus discolor James Jokerst 1985-5-29 2390 Sonoma Near Cobb Mountain. 1126 Comment
  UC75509  Holodiscus discolor Milo S. Baker 1898-6-11 677 Sonoma Geyser Canyon Comment
  POM91554  Holodiscus discolor Marcus E. Jones 1882-7-18 3579 Sonoma Duncan's Mills. 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
  CAS-BOT-BC315812  Holozonia filipes James I. McMurphy 1909-8-18 704 Sonoma Kenwood Comment
  UCR255729  Holozonia filipes Greg de Nevers 1996-5-30 10834 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 488 Comment
  HSC90904  Holozonia filipes Rimo Bacigalupi, Peter Rubtzoff 1976-8-6 Sonoma Knights Valley; off S side of Bavarian Lion Company ranch road (between it and a creek), 1-1.5 mi. W of its junction with Franz Vally Rd. (0.4 mi. S of Hwy. 128) Comment
  SD133785  Holozonia filipes Rimo Bacigalupi, P. Rubtzoff 1976-8-6 Sonoma Knights Valley, off south side of Bavarian Lion Company ranch road, 1-1.5 miles west of its junction with Franz Valley Road(0.4 mi S of Hwy128 Comment
  UC1002647  Holozonia filipes Milo S. Baker 1954-8-12 13034 Sonoma Coney Ranch, Kenwood Coney Lake 365 Comment
  SEINET258713 Image available Hordeum brachyantherum M. Barkworth, D Amme 1989-6-15 5174 Sonoma South end of Bodega Head on restored grassland. 81 Comment
  CAS-BOT-BC289287  Hordeum brachyantherum subsp. brachyantherum Peter Rubtzoff 1955-5-7 1828 Sonoma Guerneville Marsh Comment
  CAS-BOT-BC289290  Hordeum brachyantherum subsp. brachyantherum Peter Rubtzoff 1963-6-5 5154 Sonoma Brooks Gulch Marsh Comment
  CAS-BOT-BC289293  Hordeum brachyantherum subsp. brachyantherum Barrett Anderson 1987-4-27 3464 Sonoma Petaluma, south of El Rose and west of D Street 120 Comment
  UC1011009  Hordeum brachyantherum subsp. brachyantherum Virginia Bufford 1936-5-1 169 Sonoma Larkspur Rock, Bodega Canyon Comment
  UCD21129  Hordeum brachyantherum subsp. brachyantherum Vernal Pool Team 2002; Carol Witham and Jennifer Buck 2002-5-6 304 Sonoma Todd Road Ecological Reserve, W of Highway 101, N of Todd Road. Pool #TOD001. UTMs 10S0519445; 4248904. Comment
  CAS-BOT-BC285186  Hordeum marinum subsp. gussoneanum G. DeNevers 1981-5-30 1342 Sonoma Pepperwood Ranch. N of Hansel's corral Comment
  CAS-BOT-BC282021  Hordeum murinum subsp. leporinum Peter Rubtzoff 1960-5-22 4400 Sonoma Laguna de Santa Rosa area E of Graton (between Occidental and Guerneville Rds) Comment
  POM225967  Horkelia californica Philip A. Munz 1936-8-7 14309 Sonoma 6 miles N of Bodega. Comment
  UC70428  Horkelia tenuiloba Milo S. Baker may 1899 Sonoma near the Laguna (Forest Hill Rd); Forestville Comment
  UC1299116  Horkelia tenuiloba Freed W. Hoffman 1950-5-27 3593 Sonoma Fred McMurry Ranch on Healdsburg-Guerneville Hwy North Coast Ranges Comment
  UC1084463  Hypericum concinnum G. Thomas Robbins 1937-6-5 227 Sonoma roadside near Graton (Vine Hill region); Vine Hill region Comment
  SEINET11987351  Hypericum concinnum W. Knight, Knight, I. 1981-1 Sonoma 4.1 mi up Cavedale Road from jct of state rt. 12 Comment
  UCD160833  Hypericum perforatum subsp. perforatum James A. Neilson Jr.; Teresa A. Sholars 1975-6-20 3355 Sonoma Section 10, the Geysers. (Exact location unknown. Elevation and coordinates estimated by label maker.) 388 Comment
  JEPS128241  Hypochaeris glabra Roger Raiche 2000-5-4 078 .00 Sonoma The Cedars. Promentory, Cabin Site. Lower Russian River, Big Austin Creek watershed. Comment
  JEPS36533  Hypochaeris glabra M. E. and E. Van E. Ferguson Jun 8 1919-Jun 10 1919 Sonoma Guerneville; Russian River Comment
  UC496384  Hypochaeris glabra Merle Randall Sonoma Cazadero Comment
  CAS-BOT-BC133509  Iris Saichi Kawahara 1968-4-20 321 Sonoma Oak-Trinity Road, 1 mile northeast of Highway 12 152 Comment
  SEINET10529079  Iris douglasiana R. D. Sage 1992-1-10 Sage 13411 -1 Sonoma Collected along joy rd between bodega hwy and bittner rd, ca 2-6 km sw occidental. Comment
  RSA261388  Iris fernaldii Johann D. Watjen 1969-4-27 22 Sonoma Adobe Canyon, 3 miles east of Highway 12, 11 miles north of Sonoma Comment
  RSA48721  Iris fernaldii Lee W. Lenz 1949-5-2 14427 Sonoma Santa Rosa - Calistoga Road, 0.5 mile from junction with road to Mark West Springs 610 Comment
  UC905118  Iris fernaldii Milo S. Baker 1947-4-22 11702 Sonoma n of Kenwood (Gray Ranch, above ranch buildings) Comment
  UC972202  Iris longipetala J. Harry Goff 1935-4-25 Sonoma Kenwood; Goff Ranch Comment
  UCD138779  Iris macrosiphon G. E. Kerley 1966-4-3 66- 15 Sonoma Trinity Road, 3.7 miles northeast of State Highway 12. 914 Comment
  CAS-BOT-BC376406  Isoetes Greg de Nevers 1997-5-30 11010 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Three Tree Hill. 400 Comment
  POM203033  Isoetes howellii J. T. Howell 1934-3-27 11805 Sonoma Summit of Bennett Valley road from Glen Ellen to Santa Rosa Comment
  CAS-BOT-BC61916  Isoetes nuttallii John Thomas Howell 1937-6-6 13028 Sonoma Pitkin Marsh Comment
  UC604130  Isoetes nuttallii Leo Koch 1938-4-1 61 Sonoma near Kenwood (small gulch off Adobe Canyon) Comment
  CAS-BOT-BC112408  Isolepis carinata Peter Rubtzoff 1966-4-30 5696 Sonoma Todd Road 1.4 mi. from Hwy 116 and 0.6 mi. from Llamo Road. Comment
  SD134068  Isolepis carinata Peter Rubtzoff 1966-4-30 5696 Sonoma Todd Road, 1.4 miles from Highway 116 and 0.6 mile from Llano Road, low, moist meadow. Comment
  SEINET7589075 Image available Isolepis carinata John Thomas Howell 1937-6-6 13027 Sonoma Pitkin Marsh. Comment
  UCSB26159  Isolepis cernua Beetle, Alan 1941-7-8 Sonoma Coastal bluffs; 5 miles north of Steward Point Comment
  UCD161825  Juncus James A. Neilson Jr. 1975-5-23 3197 Sonoma Abril property, Big Sulphur Creek. (Exact location unkown, coordinates estimated by label maker.) Comment
  CAS-BOT-BC164386  Juncus balticus subsp. ater Peter Rubtzoff 1971-7-23 6606 Sonoma Sonoma: Laguna, Chileno Valley Comment
  CDA18031  Juncus bolanderi R. Gross 1999-7-8 s.n. Sonoma Mt. St. Helena Spring. NW side. 0 Comment
  UCD141316  Juncus bolanderi Mary M. Hektner 1976-8-26 265 Sonoma Unit 28 Owner;s Map, Sea Ranch, near State Highway 1. Comment
  SD40344  Juncus bufonius Edith A. Purer 1932-7-24 4083 Sonoma Near Bodega Bay, stabilized dunes. Comment
  UC1601701  Juncus bufonius J. Burtt Davy 1894-6-17 Sonoma Knights Valley Comment
  UCD141376  Juncus bufonius Mary M. Hektner; Cathy Hendel, Sue Dakuzaku 1974-6-21 50 A Sonoma Unit 2 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC182749  Juncus dubius Peter Rubtzoff; Nancy Harrison 1978-5-20 9187 Sonoma Cunningham Marsh area, on north side of Blucher Creek Valley Comment
  CAS-BOT-BC164038  Juncus effusus Peter Rubtzoff 1970-8-19 6337 Sonoma Sonoma: Austin Creek bank, 0.5 mi. north of Cazadero Comment
  CAS-BOT-BC210059  Juncus effusus Peter Rubtzoff 1964-7-29 5454 Sonoma Duncans Mills Marsh. Comment
  CAS-BOT-BC157999  Juncus effusus subsp. pacificus Peter Rubtzoff 1968-6-25 5903 Sonoma Lichan Marsh Comment
  CAS-BOT-BC157985  Juncus effusus subsp. pacificus Peter Rubtzoff 1964-8-26 5479 Sonoma Marsh 5 miles NE of Penngrove on Lichan Road 213 Comment
  RSA785888  Juncus effusus var. brunneus Peter Rubtzoff 1963-7-27 5213 Sonoma Duncans Mills Marsh. Comment
  UCR280132  Juncus hesperius Peter Rubtzoff 1970-9-3 6375 Sonoma Marsh off west side of Highway 1, 0.7 miles SE of Salmon Creek crossing 30 Comment
  UCD166334  Juncus laccatus Peter Rubtzoff 1968-7-13 5919 Sonoma upper Salmon Creek Marsh. Comment
  POM111129  Juncus lescurii Marcus E. Jones 1882-7-18 s.n. Sonoma Duncan Mills. Comment
  RSA0015644  Juncus lescurii Peter Rubtzoff 1959-6-20 4179 Sonoma Willow Creek Marsh. Comment
  UCD19308  Juncus lescurii Terry Reedy 1974-5-11 207 Sonoma Bodega Head, in freshwater marsh. 6 Comment
  UC143742  Juncus patens A. A. Heller 1902-6-27 5778 Sonoma w of Windsor (near Russian River) Comment
  UC143757  Juncus patens A. A. Heller 1902-6-10 5680 Sonoma Santa Rosa Comment
  UC903171  Juncus phaeocephalus var. phaeocephalus Ethel Crum 1940-5-26 2113 Sonoma Vine Hill North Coast Ranges, Pitkin Marsh Comment
  UCD142819  Juncus xiphioides Frederica Bowcutt 1997-7-18 2179 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Just south of midpoint between Mt. Hood and Red Mountain. Road on ridge West of Bear Ck. 365 Comment
  UC1132153  Koeleria macrantha H. S. Yates 1937-5-3 6561 Sonoma 1 1/2 mi wnw Mark West Springs; Calistoga Quadrangle Comment
  CAS-BOT-BC273787  Koeleria pyramidata G. DeNevers 1981-5-23 1289 Sonoma Pepperwood Ranch. Lower Pepperwood entrance Comment
  CAS-BOT-BC273790  Koeleria pyramidata Peter Rubtzoff 1952-6-1 1136 Sonoma Fitch Mtn. Grove, nr. Healdsburg Comment
  CAS-BOT-BC340483  Lactuca saligna Leonore Bravo 1982-9-12 s.n. Sonoma Guerneville (on road to Armstrong Grove) Comment
  CAS-BOT-BC274315  Lagurus ovatus David D. Keck 1948-6-29 5927 Sonoma Fort Ross, at the chapel 30 Comment
  SEINET190913 Image available Lagurus ovatus A. A. Beetle 1941-7-8 2856 Sonoma 1 mi N of Steward Point. Comment
  CAS-BOT-BC272433  Lamarckia aurea Greg de Nevers; Frank Almeda 1987-4-11 8146 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Road, Santa Rosa 400 Comment
  HSC94178  Lamarckia aurea Gordon Leppig 1998-5-6 1344 Sonoma Austin Creek State Recreation Area, Austin Creek Trail. 177 Comment
  UC353935  Lasthenia burkei Milo S. Baker 1928-4-16 2973 d Sonoma Hi<gh>way a few mi n of Winsor Comment
  UC76020  Lasthenia californica subsp. bakeri Milo S. Baker 1899-5-6 Sonoma near Sebastopol Comment
  UC893742  Lasthenia californica subsp. bakeri Milo S. Baker 1932-4-1 5906 Sonoma 4.5 mi n Ft. Ross Comment
  SJSU11865  Lasthenia californica subsp. macrantha S. H. Casey 1969-5-13 243 Sonoma Sea Ranch, 3 mi N of Stewarts Point 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-BC352791  Lasthenia glabrata subsp. glabrata John Thomas Howell 1933-4-1 10925 Sonoma Petaluma Comment
  UC517469  Lasthenia glabrata subsp. glabrata John Thomas Howell 1933-4-1 10925 Sonoma Petaluma Comment
  UC2061430  Lasthenia gracilis Rachael L. Olliff Yang 2017-5-2 20 Sonoma Pepperwood Preserve, Double ponds area, about 200 m North of the road. Comment
  UCSC000795  Lasthenia macrantha subsp. bakeri A. A. Heller 1938-5-14 s.n. Sonoma Plentiful on a steep slope just east of Bodega Bay Bodega Bay Comment
  SBBG7773  Lasthenia macrantha subsp. macrantha H. and M. Dearing 1939-5-14 3366 Sonoma Bodega State Park [Bodega Dunes State Beach] Comment
  CAS-BOT-BC370851  Lasthenia minor Katharine Brandegee 1905-6-1 s.n. Sonoma Bodega Comment
  UC353930  Lasthenia minor Milo S. Baker 1928-4-14 2984 Sonoma 1.5 mi n of Bay Comment
  CAS-BOT-BC164646  Lathyrus Peter Rubtzoff 1971-5-30 6467 Sonoma Eastern foothills of Sonoma Mountains on Sobre Vista Road, 0.9 miles west of Arnold Drive. Comment
  UCD164991  Lathyrus Peter Rubtzoff 1974-9-7 7862 Sonoma Hinebaugh Creek, Rohnert Park; west of Commerce Blvd. crossing. Comment
  UCD166119  Lathyrus Peter Rubtzoff 1972-5-25 6769 Sonoma Laguna, Chileno Valley. Comment
  SBBG3359  Lathyrus polyphyllus H. and M. Dearing 1939-5-15 3390 Sonoma near Stewarts Point Comment
  SEINET956151  Lathyrus polyphyllus Carl B. Wolf 1934-1 5799 Sonoma 6/10 mi. Inland from Stwearts Pt. Redwood forest floor, semishade. Comment
  UCD106545  Lathyrus vestitus var. ochropetalus Christine Lee 1993-4-24 85 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. Hillside Trail about 2 air miles S of Bald Mtn. Midslope on Hillside Trail. 411 Comment
  SD88301  Lathyrus vestitus var. vestitus Darley F. Howe 1972-4-30 Sonoma Bodaga bay Comment
  CAS-BOT-BC313745  Layia chrysanthemoides subsp. maritima J. Clausen 1935-5-24 1090 Sonoma 6.2 miles S of Jenner Comment
  CAS-BOT-BC379625  Layia platyglossa John Thomas Howell 1930-7-27 5405 Sonoma 1 mile north of Fort Ross Comment
  UC57867  Layia platyglossa A. A. Heller 1903-4-23 6608 Sonoma Fort Ross Comment
  CAS-BOT-BC329304  Layia septentrionalis H. E. Brown; A. A. Heller 1902-5-29 5622 Sonoma Mt. Hood Comment
  UC353802  Ledum glandulosum Milo S. Baker 1928-4-28 3009 b Sonoma Pitkin Swamp Comment
  CAS-BOT-BC184131  Leersia Peter Rubtzoff 1970-9-2 6358 Sonoma Russian River bottom at Mirabel Park Comment
  CAS-BOT-BC274360  Leersia oryzoides Peter Rubtzoff 1961-10-18 4772 Sonoma Laguna de Santa Rosa east of Graton, between Occidental and Guerneville roads Comment
  CAS-BOT-BC274363  Leersia oryzoides Peter Rubtzoff 1958-7-19 3762 Sonoma Laguna de Santa Rosa east of Sebastopol Comment
  CAS-BOT-BC376241  Leersia oryzoides Greg de Nevers 1992-8-16 10245 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Along Franz Creek 304 Comment
  UCD148508  Leersia oryzoides Peter Rubtzoff 1965-10-17 5660 Sonoma Forest Hills (5.5 miles E of Guerneville). Comment
  RSA0056431  Leersia oryzoides Greg de Nevers 1995-10-1 10775 Sonoma Russian River near Mirabel Road. 91 Comment
  CAS-BOT-BC210094  Lemna Peter Rubtzoff 1965-10-10 5653 Sonoma Stony Point Marsh. Comment
  UCD166223  Lemna Peter Rubtzoff 1970-6-21 6273 Sonoma Tributary of Mark West Creek, ca. 3 mi. W of Fulton. 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
  CAS-BOT-BC183613  Lemna minor Peter Rubtzoff 1965-11-9 5669 Sonoma Willow Creek Marsh. Comment
  SEINET11768003  Lemna minor Unknown 1940-1 1011 Sonoma behind Fountaingrove Vineyard 3 mi N of Santa Rosa along Hwy 101 Comment
  CAS-BOT-BC173645  Lepidium Peter Rubtzoff 1962-8-3 5032 Sonoma Lower Salmon Creek Marsh Comment
  CAS-BOT-BC12658  Lepidium nitidum A. A. Heller; H. E. Brown 1902-3-12 5048 Sonoma Sonoma Creek, eastern base of Mount Hood. Comment
  RSA66571  Lepidium oxycarpum J. T. Howell 1933-4-1 10924 Sonoma Petaluma Comment
  UCD115834  Lepidium strictum Caitlin Lewis; William Mutch 1993-4-17 12 Sonoma About 40 air miles N of San Francisco, 11 air miles E of Santa Rosa, and 2.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge and S of Red Mtn. 1 mile. Near visitor center. 365 Comment
  UC10632  Lepidium virginicum Alice King Sep 1897 Sonoma Healdsburg Comment
  CAS-BOT-BC273999  Leptochloa fusca subsp. fascicularis Peter Rubtzoff 1970-9-2 6354 Sonoma Russian River bottom at Mirabel Park Comment
  CAS-BOT-BC274000  Leptochloa fusca subsp. fascicularis Peter Rubtzoff 1970-7-17 6284 Sonoma 5 miles north of Sears Point Comment
  RSA54040  Leptosiphon acicularis J. T. Howell 1948-4-18 s.n. Sonoma Hills east of Agua Caliente. Comment
  UCD161263  Leptosiphon acicularis James A Neilson Jr.; Teresa A. Sholars 1976-5-11 3708 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-BC226704  Leptosiphon jepsonii Herbert L. Mason 1928-4-13 4339 Sonoma Reibli School Comment
  UCR265096  Leptosiphon parviflorus Ann Howald, Christina Freeman 2015-4-13 3343 Sonoma Inner North Coast Ranges, Annadel State Park, Ledson Marsh, northwest corner, south of Marsh Trail 362 Comment
  JEPS117109  Leptosiphon parviflorus Peter Warner 2010-5-12 148 Sonoma Jenner Headlands, in saddle meadow along Willig Extension Drive (main dirt road on property), 2.06 km past barn; E side of road, S edge of grassland along forest ecotone; on divide between upper SE Russian Gulch and NW Jenner Gulch watersheds Comment
  CDA39790  Lessingia arachnoidea Peter Warner 2013-8-2 298 Sonoma Bohemian Highway, ~ 3 km north-northwest of Camp Meeker, just south of sharp west bend in road, in roadside turnout above Dutch Bill Creek. Comment
  CAS-BOT-BC324189  Lessingia hololeuca Walter Knight; Irja Knight 1963-9-11 409 Sonoma Chileno Valley Comment
  JEPS128237  Lessingia ramulosa Roger Raiche 2000-8-18 145 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UC1299462  Lessingia ramulosa Freed W. Hoffman August 1946 1691 Sonoma near Guerneville (Gilliam Creek); North Coast Ranges, Gilliam Creek Comment
  UCR255875  Leucanthemum vulgare Greg de Nevers 1994-4-1 10517 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  UCD61317  Leymus californicus G. L. Stebbins Jr.; W. S. Boyle 1942-5-12 3229 Sonoma Bodega Canyon Road, 2.5 miles west of Bodega. Comment
  CAS-BOT-BC371401  Ligusticum apiifolium Greg de Nevers 1998-7-15 11294 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Mark West Creek, just upstream of bridge at Mark West Lodge 400 Comment
  CAS-BOT-BC436538  Ligusticum apiifolium John Thomas Howell 1930-6-8 5252 Sonoma 1 mile east of Bodega Bay Comment
  CAS-BOT-BC376267  Lilaea scilloides Greg de Nevers 1992-6-16 10162 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. In Weimar Pond 304 Comment
  CAS-BOT-BC451694  Lilaea scilloides Peter Rubtzoff 1970-11-18 6425 Sonoma 1 mi. southeast of Bloomfield. Comment
  CAS-BOT-BC451701  Lilaea scilloides David Morgan 1961-5-9 s.n. Sonoma Along Redwood Highway 4 1/2 mi. s. of Mendocino Co. line Comment
  CAS-BOT-BC451714  Lilaea scilloides Peter Rubtzoff 1971-7-9 6593 Sonoma 5 mi. north of Sears Point. Comment
  SEINET3887045  Lilaea scilloides Lewis S. Rose 1962-4-11 62019 Sonoma Laguna de Santa Rosa 1/2 mi. e. of Cunningham marsh.; 0 15 Comment
  CAS-BOT-BC123087  Lilium pitkinense Lawrence Beane; Albert Michael Vollmer 1954-7-20 1270 Sonoma in the Pitkin Marsh Comment
  RSA227238  Limnanthes douglasii Peter Rubtzoff 1969-5-3 6025 Sonoma Laguna de Santa Rosa, east of Sebastopol. Comment
  UC1057485  Limnanthes douglasii G. Thomas Robbins 1938-4-15 259 Sonoma 6-7 mi w Santa Rosa (along road to Graton) Comment
  UCD116502  Limnanthes douglasii Lewis S. Rose 1965-4-4 65020 Sonoma Sonoma County. 24 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
  NY37426  Limnanthes vinculans P. Rubtzoff 1978-5-20 9179 Sonoma This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  UC907840  Linanthus bicolor Milo S. Baker 1898-1 Sonoma Bodega Bay Region Comment
  UC879936  Linanthus dichotomus Alice Eastwood 1922-5-4 11273 Sonoma Mt. St. Helena Comment
  UC730032  Linanthus jepsonii Leo F. Koch 1940-4-22 832 Sonoma 15 mi from Geysers; Sulfur Creek Canyon 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
  UCD110569  Linum bienne Mary M. Hektner 1974-5-27 006 Sonoma Unit 7 Owners' Map, south of Whaler's Reach, Sea Ranch, near State Highway 1. Comment
  CDA34809  Linum trigynum Peter Warner 2010-6-16 167 Sonoma Jenner Headlands, Knoll Field, 203 m, S244 deg. W of residence house. Comment
  UCD110609  Linum usitatissimum P. B. Kennedy 1929-5-25 s.n. Sonoma Frick ranch, Del Mar, near Gualala. Comment
  UC72504  Lithocarpus densiflorus Milo S. Baker 1904-6-19 Sonoma Sonoma Creek Canyon Comment
  RSA476678  Lithocarpus densiflorus var. densiflorus Christopher Davidson 1977-6-17 5874 Sonoma State Hwy 12, ca. 3 mi. W of Guerneville. Along Russian River. 15 Comment
  CAS-BOT-BC435673  Lithophragma heterophyllum G. de Nevers 1993-3-24 10334 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Weimar Canyon 304 Comment
  CAS-BOT-BC437152  Lithophragma heterophyllum Elmer I. Applegate 1934-3-25 8844 Sonoma Sausal Creek, Pine Flat road, foothills of the Cayamaca Mountains Comment
  UC1093939  Logfia filaginoides Herbert L. Mason 1947-5-4 13211 Sonoma near Kenwood (burned area of Hood Mountain); Hood Mountain Comment
  CAS-BOT-BC283288  Lolium multiflorum Peter Rubtzoff 1951-7-7 380 Sonoma Pitkin Marsh, near Forestville. E branch of the Upper Marsh Comment
  SEINET11690153  Lolium multiflorum W. Knight, Knight, I.; Howell, J. T. 1987-1 6279 Sonoma Todd Road Preserve 24 Comment
  UCD167360  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
  UC140572  Lomatium californicum C. F. Baker 1903-4-20 2602 Sonoma Mt. St. Helena Comment
  RSA97148  Lomatium caruifolium F. W. Peirson, Mabel Peirson 1926-4-1 6548 Sonoma 6 miles south of Cloverdale Comment
  SEINET7040128  Lomatium dasycarpum A. G. Vestal 1962-3-11 Sonoma 1 mile east of Occidental. UTM Zone 10, 505896mE, 4250807mN. Comment
  UC1046220  Lomatium dasycarpum subsp. dasycarpum Lincoln Constance 1953-4-4 3448 Sonoma 1 mi. s.w. Petrified Forest (Mark West rd.) Comment
  JEPS86774  Lomatium repostum Jack and Betty Guggolz 1990-5-9 1049 Sonoma 1 1/4 mi. s.e. Warm Springs Dam (1/4 mi. n. of dam for the large reservoir on the Merlo Ranch) 182 Comment
  RSA177898  Lomatium repostum R. F. Thorne 1965-4-20 34355 Sonoma On Cavedale Road, 0.5 miles up from State Hwy 12, ca. 4 miles N of Sonoma. 244 Comment
  CAS-BOT-BC258030  Lonicera Peter Rubtzoff 1962-4-11 4787 Sonoma Laguna de Santa Rosa east of Cunningham (near Llano Road). Comment
  RSA633341  Lonicera involucrata Michael A. Vincent, Ethan H. Freid 1998-4-8 8173 Sonoma Bodega Bay; 0.5 mile NE of city limits along Rt. 1. Comment
  CAS-BOT-BC243997  Lonicera involucrata var. ledebourii G. DeNevers 1981-3-14 530 Sonoma Pippindale farm, 7 mi. NE of Santa Rosa, near Mark West lodge, Pepperwood Ranch Comment
  CAS-BOT-BC244005  Lonicera involucrata var. ledebourii F. H. Utech; Walter Knight; Irja Knight 1984-4-17 84 -148 Sonoma Bridgehaven (village), near junction of Willow Creek Road and CA Hwy 1 along Russian River 36 Comment
  UC1299561  Lonicera involucrata var. ledebourii Freed W. Hoffman 1947-2-23 618 Sonoma Russian Gulch near mouth of stream North Coast Ranges Comment
  CAS-BOT-BC241419  Lonicera japonica Peter Rubtzoff 1952-5-31 1130 Sonoma Pitkin Marsh, near Forestville. Bordering the Upper Marsh in the west 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-BC540820  Lotus Peter Rubtzoff 1971-6-26 6575 Sonoma Willow Creek Marsh. Comment
  UC864387  Lotus angustissimus Alice Eastwood and John Thomas Howell 1938-7-11 6267 Sonoma near Stillwater Cove Comment
  UCD35134  Lotus angustissimus Beecher Crampton 1946-8-16 417 Sonoma Fort Ross. Comment
  POM316662  Lotus angustissimus Patricia Wilder 1965-6-10 3633 Sonoma 1.0 mile N of Jenner on Calif. state Hwy 1. 46 Comment
  POM18310  Lotus benthamii A. A. Heller 1903-4-25 7458 Sonoma Fort Ross Comment
  JEPS55455  Lotus formosissimus Robert Percy Brandt 1915-5-18 Sonoma Del Mar Comment
  UC1057478  Lotus formosissimus G. Thomas Robbins 1937-5-23 211 Sonoma about 10 mi w Santa Rosa (on Pitkin Ranch, Vine Hill region); Vine Hill Region Comment
  UC15582  Lotus formosissimus Harley P. Chandler 1900-5-25 674 Sonoma Bodega Comment
  JEPS30832  Lotus heermannii Rimo Bacigalupi, and L. R. Heckard 1962-6-19 8588 Sonoma ne of Bodega Head (oppoiste spit of Doran Beach); Bodega Bay Comment
  CDA36838  Lotus micranthus 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
  UC353803  Lotus oblongifolius var. oblongifolius Milo S. Baker 1928-4-28 3008 a Sonoma Pitkin Swamp Comment
  CDA31006  Lotus purshianus D. G. Kelch, Troy McGregor 2010-8-22 10 .357 Sonoma Nr Peak of Geyser Peak Rd. 0 Comment
  SEINET3729647  Lotus purshianus A. A. Heller 1941-8-8 16278 Sonoma West of Petrified Forest Comment
  UCR222351  Lotus scoparius var. scoparius George K. Helmkamp, E. A. Helmkamp 2010-6-4 16233 Sonoma North Coast Ranges, Mark West Springs Road (Porter Creek Rd.), 9.8 rd. miles east of its junction with US-101, 4.5 air miles SW (250 deg. ) of Calistoga 280 Comment
  JEPS55882  Lotus stipularis var. stipularis P. B. Kennedy ca. 1914 Sonoma Del Mar Comment
  CDA4158  Lotus tenuis A. C. Browne 1953-5-27 Sonoma Black Point Cut-off. 0 Comment
  CHSC20629  Lotus uliginosus Robert A. Schlising; G. Keator 1963-7-27 2632 Sonoma California Coastal Range. On east side of Bodega Peninsula. Comment
  UC15702  Lotus wrangelianus Harley P. Chandler 1900-5-25 719 Sonoma Bodega Bay Comment
  UC1745892  Lotus wrangelianus Annetta M. Carter, Edward Lee 1936-6-21 1199 Sonoma 2.2 mi. inland from Bodega Bay on road to Bodega. Comment
  CAS-BOT-BC290621  Ludwigia Peter Rubtzoff 1986-8-31 9731 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  UCD66045  Ludwigia hexapetala Robert McKee; Greg Woods 2006-7-31 06- 54 -LU Sonoma Russian River upstream of Wohler Bridge @ Sonoma County Water Agency collectors. 10 Comment
  CAS-BOT-BC258921  Ludwigia palustris Peter Rubtzoff 1958-8-9 3858 Sonoma Laguna de Santa Rosa, north of Sebastopol (near Occidental Road). Comment
  CAS-BOT-BC376292  Ludwigia palustris Greg de Nevers 1992-6-26 10206 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. In oxbow of Franz Creek 91 Comment
  UC728662  Ludwigia palustris Milo S. Baker 1945-7-18 11110 Sonoma upper meadow of Pitkin Marsh Comment
  CAS-BOT-BC251278  Ludwigia palustris Peter Rubtzoff 1955-4-23 1787 Sonoma Bennett Mountain Lake. Comment
  RSA800129  Ludwigia palustris var. pacifica Peter Rubtzoff 1954-6-7 1486 Sonoma Guerneville Marsh Comment
  RSA800587  Ludwigia palustris var. pacifica Peter Rubtzoff 1955-7-31 2008 Sonoma Forestville Marsh. Comment
  CAS-BOT-BC164350  Ludwigia peploides Peter Rubtzoff 1964-6-20 s.n. Sonoma Laguna de Santa Rosa, southeast of Sebastopol (near Cooper Road) Comment
  RSA791568  Ludwigia peploides Peter Rubtzoff 1958-7-20 3782 Sonoma Laguna de Santa Rosa, NE of Graton (near Guerneville Road). Comment
  CAS-BOT-BC198293  Lupinus Milo S. Baker 1935-5-1 8066 Sonoma Near south end of bridge on Russian River near Jenner. Comment
  CAS-BOT-BC201291  Lupinus Charles Piper Smith 1947-6-25 47572 Sonoma Highway 1, Stewarts Point, 7.6 miles south Comment
  CAS-BOT-BC201294  Lupinus Mrs. H. C. Cantelow 1941-6-7 s.n. Sonoma 4 miles north of Bay, on state highway 1 Comment
  RSA735208  Lupinus Keith E. Hoffmaster 1946-3-9 1092 Sonoma near Bodega. Comment
  SEINET7042675 Image available Lupinus A. G. Vestal 1947-5-16 s.n. Sonoma Ca.4.5 miles east of Winsor. Healdsburg quadrangle UTM Zone 10, 519826mE, 4271406mN. Comment
  UC864972  Lupinus albifrons Alice Eastwood 1939-3-21 18902 Sonoma a few mi n Cloverdale (near Russian River); Russian River, n of Cloverdale Comment
  UCD167634  Lupinus albifrons James A. Neilson Jr. 1977-3-7 3846 Sonoma Mayacmas Mountains. Near soulth base Mt. St. Helena. (Exact location unknown. Coordinates estimated by label maker.) Comment
  CDA27360  Lupinus albifrons G. D. Barbe, T. C. Fuller 1985-3-28 4200 Sonoma 6560 Sonoma Mountain Road, south of Santa Rosa. Comment
  SEINET12165153  Lupinus albifrons W. Knight, Knight, I.; Ellman, P.; Petersen, J. 1986-1 5248 Sonoma Bowerie Aubdubon Preserve, betw Cavedale Rd adn Stuart Canyon .5mi off hwy 12 Comment
  UCD105999  Lupinus albifrons Collector Unknown Date Unknown s.n. Sonoma southwestern part of county. Comment
  CAS-BOT-BC195985  Lupinus albifrons var. albifrons Peter H. Raven 1951-4-22 2788 Sonoma E. of Agua Caliente Comment
  SD130430  Lupinus albifrons var. albifrons F. Almeda, G. DeNevers 1981-4-28 4912 Sonoma Pepperwood Ranch: vicinity of the Bechtel cabin in and about serpentine chaparral. Comment
  JEPS77262  Lupinus albifrons var. albifrons Robert M. Lloyd 1963-4-24 2399 Sonoma 16.5 mi from State Hwy. 12 on road to Oakdale 274 Comment
  CAS-BOT-BC196153  Lupinus albifrons var. douglasii J. W. Congdon 1880-6-1 s.n. Sonoma Petaluma Comment
  CDA36849  Lupinus bicolor 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
  UCR248892  Lupinus bicolor Peter Rubtzoff 1969-5-3 6020 Sonoma Laguna de Santa Rosa, east of Sebastopol 21 Comment
  RSA105076  Lupinus bicolor subsp. tridentatus Alice Eastwood 1921-4-24 10269 Sonoma Santa Rosa Comment
  SEINET10838181  Lupinus densiflorus Joseph W. Congdon 1880-5-30 Congdon s.n. Sonoma Petaluma. Comment
  UCD151109  Lupinus latifolius James A. Neilson Jr. 1974-6-1 2764 Sonoma Mayacmas Mountains, 1/4 mi. south of Geyser Rock, east Sonoma County. (Elevation estimated by label maker using Google Earth.) 1027 Comment
  UCD108128  Lupinus latifolius P. B. Kennedy 1915-5-31 22 Sonoma Annapolis. Comment
  UCD55145  Lupinus latifolius var. latifolius Ellen Dean; Tammie Beyerl 2006-4-28 3027 Sonoma Town of Kenwood. East of Hwy. 12. Kunde Vineyards. Hills to the east, near center of property. 191 Comment
  UC65701  Lupinus nanus A. A. Heller 1902-4-9 5233 Sonoma Healdsburg Comment
  UCD108976  Lupinus nanus Mary M. Hektner 1976-5-10 250 Sonoma Unit 35-A Owners' Map, Sea Ranch, near State Highway 1. Comment
  OBI48720  Lupinus nanus Joseph Andorfer Ewan 1935-5-13 9253 Sonoma Wright School on the Sebastopol rd Comment
  UCD109068  Lupinus nanus Freed W. Hoffman 1947-4-7 1358 Sonoma Chalk Hill Road. Comment
  UC73201  Lupinus pachylobus Milo S. Baker 1898-4-20 631 Sonoma Taylor Mt. Comment
  RSA0022414  Lupinus polycarpus Peter Rubtzoff 1971-5-8 6436 Sonoma Eastern foothills of Sonoma Mts. on Sobre Vista Road 0.9 mi west of Arnold Drive. Comment
  SEINET10838282  Lupinus polycarpus Charles R. Gunn 1963-6-1 Gunn 2663 Sonoma U.s. Hwy. 101 Roadside at gyer summit mainainence station. Growing with avena Barbata and other legumes. Comment
  SEINET5500928 Image available Lupinus ruber Sally Walker 1983-6-13 Sonoma N. Bodega Highway on Joy Rd. Comment
  JEPS83025  Lupinus sericatus Roger Raiche 1984-3-25 40074 Sonoma from Kelly Road near Rockpile Road sw Cloverdale ((about 11 1/2 mi n of its origin (Rockpile) at intersection with Skaggs Springs-Stewarts Point Road)); sw of Cloverdale Comment
  JEPS77251  Lupinus succulentus Robert M. Lloyd 1963-4-24 2390 Sonoma on road to Oakdale 1.3 mi from State Highway 12; rd to Oakdale 243 Comment
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Sep 25 2013
  UC909758  Lupinus succulentus Milo S. Baker Apr 1950 12159 Sonoma w of Mellita Comment
  CAS-BOT-BC202173  Lupinus tidestromii Catherine Best 1980-5-1 s.n. Sonoma On the south side of the mouth of the Russian River Comment
  RSA0036487  Lupinus variicolor Daisie Huang 2006-5-30 06053005 Sonoma Bodega Marine Laboratory. Costal bluff near building (waypt 30B). 1 Comment
  UCD148314  Luzula Peter Rubtzoff 1951-9-3 741 Sonoma Vacation Beach, near Guerneville along Russian River. Comment
  CAS-BOT-BC436744  Luzula comosa var. comosa Peter Rubtzoff 1951-7-28 556 Sonoma Pitkin Marsh. near Forestville. Northern half of Lower Marsh Comment
  UC1534065  Luzula macrantha Carol Conner 1980-3-12 21 Sonoma 2 mi south of Glen Ellen and 1/2 mi northeast of Josephine Lake 91 Comment
  UC221764  Lythrum hyssopifolia Dr. Edward Palmer 1892-6-27 2399 Sonoma Petaluma Comment
  CDA15313  Lythrum salicaria Lane 1998-8-2 s.n. Sonoma Park Ave. Turf, 3075 Old Graverstein Hwy, Sebastopol. 0 Comment
  CAS-BOT-BC173551  Madia Peter Rubtzoff 1974-6-22 7623 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  CAS-BOT-BC342609  Madia Lawrence Beane 1949-5-11 338 Sonoma 2 miles north of Cloverdale Comment
  UCD164542  Madia Peter Rubtzoff 1975-8-16 8324 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC344040  Madia elegans David D. Keck 1933-11-6 2646 Sonoma 1 mi. N. of Freestone on road to Occidental Comment
  CAS-BOT-BC344043  Madia elegans David D. Keck 1933-11-6 2650 Sonoma 4 mi. N. of Occidental Comment
  JEPS77886  Madia elegans Edward Lee 1934-4-30 751 Sonoma 1 mi w 2 Rock junction Comment
  UCD151198  Madia elegans James A. Neilson Jr. 1974-7-10 2817 Sonoma Mayacmas Mountains, 1/4 mile south of Geyser Rock, eastern Sonoma County. (Elevation estimated using Google Earth by label maker.) 1082 Comment
  POM215201  Madia elegans subsp. densifolia D. D. Keck 1933-11-6 2646 Sonoma 1 mile north of Freestone on road to Occidental Comment
  SDSU4727  Madia elegans subsp. densifolia D. F. Howe 1961-7-29 3086 Sonoma 2 miles east of a point 4 miles north of Santa Rosa on #101, on road to Calistoga. 122 Comment
  CAS-BOT-BC157687  Madia exigua Peter Rubtzoff 1962-6-8 4882 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC343446  Madia gracilis Peter Rubtzoff 1952-6-3 1171 Sonoma Fitch Mtn. Grove, near Healdsburg Comment
  POM261213  Madia gracilis subsp. gracilis L. S. Rose 1940-5-22 40370 Sonoma Sonoma 30 Comment
  CAS-BOT-BC345204  Madia sativa John Thomas Howell 1930-6-8 5264 Sonoma 1 mile east of Bodega Bay Comment
  CAS-BOT-BC345211  Madia sativa D. E. Breedlove 1961-12-31 1445 Sonoma At S side of mouth of Russian River 6 Comment
  UCSB15481  Madia sativa Breedlove, Dennis 1961-12-31 Sonoma At S side of mouth of Russian River 6 Comment
  SEINET12052825  Maianthemum stellatum F. H. Utech, Kawano, S.; Ohara, M. 1995-1 95 -51 Sonoma 11.5 mi WNW of Lake Sonoma on Skaggs Springs Road along Skaggs Springs Creek Comment
  UCD139121  Maianthemum stellatum Frederica Bowcutt; Jeff Kennedy and Jolie Henricks 1994-5-1 1768 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco; about 10 air miles E of Santa Rosa; about 18 air miles NW of Napa; about 1.5 air miles NE of Kenwood. In Adobe Canyon along the Goodspeed Trail about 30 yards from the trail head. Along Sonoma Creek just east of confluence with Bear Creek near bridge over Sonoma Creek. 198 Comment
  CAS-BOT-BC511494  Maianthemum stellatum Mary P. Wells 1985-4-11 468 Sonoma Near house at 230 Pilot's Ranch, The Sea Ranch Comment
  RSA177926  Maianthemum stellatum Robert F. Thorne 1965-4-20 34377 Sonoma Charles Newman s place up Los Alamos Rd, on Rincon Ridge 396 Comment
  CAS-BOT-BC347362  Malacothrix floccifera A. T. Graff 1925-5-20 s.n. Sonoma Trospers, Cazadero Comment
  HSC15988  Malva nicaeensis S. N. Wiemeyer 1962-4-20 24 Sonoma 0.75 mi. E of County Hospital along Chanate Rd. 122 Comment
  UCD13100  Marah fabacea M. A. Lefevre 1974-5-11 59 -99 Sonoma SONOMA CO. Bodega Bay - N. Bodega Head - Sand Dunes. Elevation about 30'. Comment
  HSC27363  Matricaria chamomilla J. P. Smith 1973-3-4 5844 Sonoma Near Geyserville Comment
  CAS-BOT-BC262986  Medicago Peter Rubtzoff 1970-8-19 6335 Sonoma On Austin Creek beach, 0.5 miles north of Cazadero. Comment
  CAS-BOT-BC262977  Medicago Peter Rubtzoff 1968-8-31 5945 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  UCD106758  Medicago arabica Mary M. Hektner 1976-4-3 230 Sonoma Sea Ranch Association Office, Sea Ranch, near State Highway 1. Comment
  HSC14982  Medicago polymorpha S. N. Wiemeyer 1962-4-20 27 Sonoma 0.75 mi. E of County Hospital along Chanate Rd. 122 Comment
  UCD107846  Medicago polymorpha P. B. Kennedy 1914-10-1 s.n. Sonoma Del Mar Ranch. Comment
  CAS-BOT-BC269510  Melica californica David L. Morgan 1961-4-15 s.n. Sonoma Bohemian Highway 3 miles north of Occidental Comment
  CAS-BOT-BC269513  Melica californica Peter Rubtzoff 1952-6-3 1147 Sonoma South slopes of Fitch Mtn., near Healdsbrug [Healdsburg] Comment
  UCD87215  Melica californica R. Tofsrud 1941-4-1 294 Sonoma McDonald Reservoir. Comment
  CAS-BOT-BC281283  Melica geyeri John Thomas Howell; et al. 1982-4-28 54674 Sonoma Bouverie Audubon Preserve, about 1.5 miles E of Glen Ellen near Stuart Creek 137 Comment
  SD134042  Melica geyeri Greg de Nevers 1987-6-1 8184 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Road, Santa Rosa 99 Comment
  UCD87356  Melica geyeri R. Tofsrud 1948-5-1 s.n. Sonoma Woods between Kellogg and Alexander Valley. Comment
  CAS-BOT-BC281280  Melica geyeri David L. Morgan 1961-4-17 s.n. Sonoma On Bohemian Highway, 3 miles N of Occidental Comment
  SEINET197658 Image available Melica geyeri Leo Koch 1940-4-24 843 Sonoma Roadside in Bennett Valley a mile north of two and one-half mile junction from Kenwood and Glen Ellen Comment
  CAS-BOT-BC281391  Melica harfordii H. S. Yates 1936-5-16 5612 Sonoma 1 mile NW of Mountain View Comment
  JEPS45822  Melica harfordii Eleanor Armstrong 1932-6-3 181 Sonoma near Camp Meeker 121 Comment
  UCD87379  Melica harfordii Beecher Crampton 1954-5-9 1837 Sonoma Sonoma County, 2.5 miles north of Guerneville. Comment
  UC60773  Melica harfordii J. Burtt Davy 1896-7-29 Sonoma Redwood Ridge; Russian River Comment
  CAS-BOT-BC262560  Melica torreyana Mary P. Wells 1984-5-24 300 A Sonoma Annadel State Park (near Santa Rosa) Comment
  CAS-BOT-BC262563  Melica torreyana A. A. Heller 1902-3-17 5084 Sonoma Hills near Santa Rosa Comment
  UCD144429  Melica torreyana Frederica Bowcutt 1994-6-24 1883 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
  UCD89201  Melica torreyana R. Tofsrud 1942-4-1 300 Sonoma Stream bank 3 mi. east of Mark West resort on same road. Comment
  RSA784568  Melissa Peter Rubtzoff 1973-8-28 7277 Sonoma Upper Green Valley Marsh. Comment
  UCR279859  Melissa officinalis Peter Rubtzoff 1965-9-5 5639 Sonoma North Coast Ranges, Forest Hills, 5.5 miles east of Guerneville 9 Comment
  CAS-BOT-BC164353  Mentha Peter Rubtzoff 1960-9-17 4564 Sonoma Laguna de Santa Rosa area NE of Graton (near Laguna Road). Comment
  CAS-BOT-BC164068  Mentha Peter Rubtzoff 1962-7-6 4971 Sonoma Laguna de Santa Rosa near Trenton (south of Woolsey Road). Comment
  UCD148432  Mentha Peter Rubtzoff 1962-7-4 4965 Sonoma Healdsburg region. Fitch Mts. Grove, 2 mi. east of Healdsburg. Russian River. Comment
  UC456136  Mentha canadensis I. J. Condit 1908-8-13 Sonoma Guerneville Comment
  RSA33085  Mentha pulegium A. A. Heller 1923-7-12 s.n. Sonoma Windsor Comment
  UCD125123  Mentha pulegium Mary M. Hektner 1974-9-12 183 Sonoma Sea Ranch. Near State Highway 1. Unit 7 Owners' Map. Comment
  UCD148373  Mentha pulegium Peter Rubtzoff 1955-10-12 2165 Sonoma Duncans Mills Marsh, lower portion of marsh. Comment
  UCR244649  Mentha rotundifolia Peter Rubtzoff 1973-8-27 7266 Sonoma Upper Green Valley Marsh Comment
  CAS-BOT-BC428950  Micranthes californica Peter H. Raven 1954-2-27 6426 Sonoma Hooker Creek, Hoods Peak Range 228 Comment
  CAS-BOT-BC428953  Micranthes californica Ella Dales Cantelow 1939-4-10 2604 Sonoma Grade n.w. of Cazadero Comment
  RSA54045  Micropus amphibolus J. T. Howell 1948-4-18 24203 Sonoma Hills east of Agua Caliente. Comment
  SEINET11601909 Image available Microseris bigelovii P. Kamb, F. Chisaki 1952-6-21 2304 Sonoma Fort Ross Comment
  SEINET11601910 Image available Microseris bigelovii P. Kamb, F. Chisaki 1952-6-21 2304 Sonoma Fort Ross Comment
  UC50030  Microseris douglasii subsp. douglasii Edw. L. Greene 1892-4-23 Sonoma Mt. St. Helena Comment
  JEPS85523  Microseris laciniata Charles F. Quibell 1990-5-20 2019 Sonoma Hunter Lane 0.2 mi w junction with Petaluma Hill Road (ne of Rohnert Park) Comment
  CAS-BOT-BC322710  Microseris laciniata John Thomas Howell; Alice Eastwood 1938-7-6 6086 Sonoma Alder Glen Springs Comment
  CAS-BOT-BC322748  Microseris paludosa Ella Dales Cantelow 1941-4-18 3508 Sonoma 2 miles north of Windsor Comment
  CAS-BOT-BC320530  Mimulus Peter Rubtzoff 1966-5-29 5742 Sonoma Pitkin Marsh. Comment
  CAS-BOT-BC311866  Mimulus Peter Rubtzoff 1969-6-14 6073 Sonoma Vernal pool, 6.5 miles northeast of Penngrove, on Lichan Road. 426 Comment
  CAS-BOT-BC311875  Mimulus Peter Rubtzoff 1954-7-29 1606 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC320515  Mimulus Peter Rubtzoff 1962-6-19 4918 Sonoma Occidental Marsh. Comment
  RSA0025399  Mimulus Peter Rubtzoff 1954-9-4 1729 Sonoma Bodega Head Marsh. Comment
  RSA420300  Mimulus aurantiacus var. aurantiacus Ynez Whilton Winblad 1934-6-10 s.n. Sonoma Nob Hill at Monte Rio on the Russian River Comment
  UC445122  Mimulus aurantiacus var. aurantiacus Miss C. M. Hoak Aug. 1912 Sonoma Monte Rio Comment
  UCD122502  Mimulus cardinalis Frederica Bowcutt 1994-7-5 1935 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. Adobe Canyon N of Sonoma Creek about 30 feet, 70 ft. S of campfire center along N edge of Sonoma Creek, N and E of campground, just N of bridge to campfire center. 381 Comment
  JEPS86852  Mimulus douglasii David M. Thompson 1989-3-18 990 Sonoma 2.8 mi w of birdge Lake Sonoma (along Rockpile Road, then 0.4 mi s along paved campground road to Liberty Glen campground entrance booth, 0.1-0.2 mi ne of parking area); Lake Sonoma Recreation Area 180 Comment
  POM5118  Mimulus guttatus A. A. Heller 1902-6-11 5687 Sonoma Santa Rosa creek, E of Santa Rosa Comment
  RSA0040387  Mimulus guttatus Peter Rubtzoff 1957-5-11 3336 Sonoma Occidental Marsh. Comment
  SBBG84751  Mimulus guttatus F. W. Pennell, H. L. Mason 1940-5-21 25483 Sonoma Kellogg, St Hwy 28 213 Comment
  UCR248873  Mimulus guttatus Peter Rubtzoff 1955-7-9 1928 Sonoma North Coast Range, Forestville Marsh 71 Comment
  UCR248874  Mimulus guttatus Peter Rubtzoff 1978-6-11 9215 Sonoma Cunningham Marsh area, on north side of Blucher Creek Valley 35 Comment
  UCR252543  Mimulus guttatus Peter Rubtzoff 1969-5-24 6060 Sonoma 6.5 miles northeast of Penngrove, on Lichau Road 427 Comment
  UCR252544  Mimulus guttatus Peter Rubtzoff 1962-5-30 4849 Sonoma Freestone Marsh 79 Comment
  UCR275267  Mimulus guttatus Peter Rubtzoff 1955-8-20 2081 Sonoma Bodega Harbor Marsh 0 Comment
  RSA0022509  Mimulus guttatus Peter Rubtzoff 1960-6-9 4486 Sonoma Laguna de Santa Rosa area NE of Graton, near the Laguna Road. Comment
  UC26956  Mimulus kelloggii H. N. Bolander 1864-1 3951 Sonoma near Pine Mt.; The Geysers Comment
  UC26937  Mimulus microphyllus F. T. Bioletti 1892-1 Sonoma Sonoma Comment
  UC26911  Mimulus pilosus Alice King Sept., 1896 Sonoma Healdsburg Comment
  CAS-BOT-BC174577  Minuartia californica John Thomas Howell 1948-4-18 24207 Sonoma Hills east of Agua Caliente Comment
  CAS-BOT-BC388900  Minuartia douglasii Barbara Keller 1990-4-30 2034 Sonoma On Coleman Valley Rd. 6 miles west of Occidental Comment
  RSA77981  Minuartia douglasii Verne Grant, Alva Grant 1946-04 7671 Sonoma On Hwy 12, N of intersection of highways 48 & 37. Comment
  CAS-BOT-BC435114  Mollugo verticillata Peter Rubtzoff 1958-8-30 3935 Sonoma Vacation Beach, near Guerneville. Bottom of Russian River. Comment
  UCD125197  Monardella purpurea Walter Knight; Irja Knight, Roger Raiche, Steve Edwards Date Unknown 4756 Sonoma The Cedars; near Cazadero on Twitchell Ranch. Comment
  UCD160824  Monardella villosa James A. Neilson Jr.; Teresa A. Sholars 1975-6-20 3362 Sonoma Section 10, the Geysers. (Exact location unknown. Elevation and coordinates estimated by label maker.) 388 Comment
  CAS-BOT-BC314185  Monardella villosa subsp. villosa W. R. Dudley 1893-9-9 s.n. Sonoma Near mouth of Russian River. Comment
  JEPS87252  Monardella viridis subsp. viridis Jack and Betty Guggolz 1992-7-25 1332 Sonoma 4 1/2 mi sw Geyserville (about 5/8 mi ssw of Bradford Mountain) 292 Comment
  CAS-BOT-BC444985  Montia fontana J. Clausen 1933-3-25 731 Sonoma Between Warfield and Kenwood, along the highway Comment
  CAS-BOT-BC444992  Montia fontana G. DeNevers 1981-4-1 659 Sonoma Pepperwood Ranch. 30 m S of Aluminum Pepperwood Gate. Comment
  CAS-BOT-BC444999  Montia fontana Peter Rubtzoff 1952-3-23 900 Sonoma Pitkin Marsh, near Forestville. Northern half of Lower Marsh Comment
  CDA42984  Morella californica L. Ahart, Marge Anthony, John Dittes, Josephine Guardino 2013-4-25 18601 Sonoma North Coast; Near the edge of a residential driveway, 0.7 miles (air) east of Pacific Ocean, 0.8 miles (air) west of Gualala River. Comment
  CAS-BOT-BC515645  Muilla maritima Alice Griffin 1922-3-29 s. n. Sonoma Meadow opposite Myrtledale Geyser 1 1/2 mi north of Calistoga Comment
  JEPS23179  Myosotis discolor Reino Alava 1955-5-24 2044 Sonoma Pitkin Marsh n.w. of Sebastopol; Pitkin Marsh Comment
  RSA461913  Myrica californica Christopher Davidson 1977-6-17 5887 Sonoma Coast Highway 1, ca. three miles north of Jenner. Comment
  UCR279604  Myriophyllum aquaticum Peter Rubtzoff 1963-7-6 5195 Sonoma Laguna de Santa Rosa, east of Cunningham (near Llano Road) 31 Comment
  UCD166460  Myriophyllum verticillatum Peter Rubtzoff 1955-8-13 2039 Sonoma Duncans Mills Marsh, lower portion of the marsh. Comment
  CAS-BOT-BC456194  Najas guadalupensis Peter Rubtzoff 1955-7-30 1996 Sonoma Bennett Mtn. Lake. Comment
  UC729998  Nassella cernua Leo F. Koch 1940-4-24 844 Sonoma roadside n junction 2 1/2 miles from Kenwood and Glen Ellen; Bennett Valley Comment
  CAS-BOT-BC260075  Nassella lepida G. DeNevers 1981-6-6 1479 Sonoma Pepperwood Ranch, S slope of Telegraph Hill Comment
  RSA115461  Nassella pulchra Beecher Crampton 1957-5-16 4041 Sonoma US Highway 101, 3 miles south of Healdsburg. Comment
  SEINET7067245  Nassella pulchra A. G. Vestal 1947-5-13 s.n. Sonoma About 5 miles north of Fort Ross on Route 1. Coordinate datum: NAD27. Comment
  UC1133201  Nassella pulchra H. S. Yates 1934-4-21 3832 Sonoma 2 mi n County Farm; Santa Rosa Quadrangle Comment
  UCD87528  Nassella pulchra John Elliott 1958-4-6 s.n. Sonoma State Hwy. 1. 2 miles north of Jenner. Comment
  CAS-BOT-BC260285  Nassella pulchra Milo S. Baker 1945-4-1 10892 Sonoma Above house at Maplewood ca 2 miles N of Kenwood Comment
  UCR265236  Nasturtium officinale Ann Howald 2015-4-28 3377 Sonoma North Coast Ranges, Stewarts Point-Skaggs Springs Rd, Las Lomas, c. 12.9 miles west of intersection with Rockpile Rd, Wild Cattle Creek drainage 585 Comment
  CAS-BOT-BC479713  Navarretia cotulifolia Ann Howald 2003-5-15 2334 A Sonoma Inner North Coast Ranges: Sonoma Mountains, S end, lower E slope, c. 0.2 mi SE of intersection of Lewis Creek and Felder Creek 151 Comment
  RSA73731  Navarretia cotulifolia F. W. Peirson 1925-8-8 6339 Sonoma 6 miles south of Santa Rosa Comment
  POM279099  Navarretia jepsonii Lyman Benson 1930-6-18 s.n. Sonoma South of Santa Rosa. 61 Comment
  CAS-BOT-BC230370  Navarretia leucocephala subsp. bakeri Peter Rubtzoff; Nancy Harrison 1976-6-18 8647 Sonoma False Lake Meadow area, Annadel State Park Comment
  CAS-BOT-BC230373  Navarretia leucocephala subsp. bakeri Alice Eastwood; John Thomas Howell 1936-5-19 2520 Sonoma 2 miles N of Windsor Comment
  CAS-BOT-BC233610  Navarretia pubescens Milo S. Baker 1925-6-28 149 a Sonoma Maple Glen near Kenwood Comment
  CDA40114  Navarretia pubescens G. D. Barbe 1991-5-15 4412 c Sonoma Along ridge west of Annadel State Park boundary, Santa Rosa. Comment
  SDSU3220  Navarretia pubescens D. F. Howe 1963-7-2 3574 Sonoma 3.5 miles south of Guerneville on #12. 30 Comment
  UCD37159  Navarretia squarrosa Beecher Crampton 1957-7-22 4364 Sonoma Sonoma County, Sonoma Coast State Park, 8.2 miles north of Stewart's Point. Comment
  UC1719859  Navarretia tagetina David Fruchter 1978-9-17 96 Sonoma Diamond D. 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
  CDA11326  Nemophila heterophylla G. F. Hrusa 1995-4-2 12036 Sonoma North Coast Biodiversity Arena; Foote Ranch at NE corner of Hwy. 128 and Ida Clayton Rd. Knights Valley. Comment
  UCSC000579  Nemophila heterophylla Daisy Swett 1901-3-18 s.n. Sonoma Windsor Comment
  SEINET7067240  Nemophila menziesii A. G. Vestal 1947-5-13 s.n. Sonoma Bodega Head. Coordinate datum: NAD27. Comment
  UC107228  Nemophila menziesii Alice Eastwood Apr 1901 Sonoma Bodega Comment
  POM179734  Nemophila menziesii var. atomaria A. A. Heller 1903-4-23 6600 Sonoma Fort Ross. Comment
  UC24256  Nemophila menziesii var. atomaria W. A. Setchell March, 1898 Sonoma Cloverdale Comment
  UC67151  Nemophila menziesii var. atomaria Milo S. Baker 1899-3 Sonoma near Kenwood (Dr. Turk Canyon); Dr Turk Canyon, near Kenwood Comment
  POM216812  Nemophila menziesii var. menziesii H. F. Copeland 1933-3-18 s.n. Sonoma Field northeast of Santa Rosa. Comment
  RSA51317  Nemophila menziesii var. menziesii Peter H. Raven 1950-4-6 1571 Sonoma Cotati to Santa Rosa. 30 Comment
  CAS-BOT-BC368029  Nemophila parviflora Greg de Nevers 1998-6-15 11284 Sonoma CYO Camp on Bohemian Highway. Comment
  CAS-BOT-BC290672  Nicotiana Peter Rubtzoff 1986-9-29 9754 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  UCR255657  Nicotiana Greg de Nevers 1997-10-17 11106 Sonoma North Coast Range, Santa Rosa, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road 400 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
  CAS-BOT-BC336873  Oemleria cerasiformis Greg de Nevers 1998-4-27 11199 Sonoma Calistoga Road at Alpine Road, along Mark West Creek 121 Comment
  UCD144579  Origanum vulgare Susan Dean 2013-11-18 s.n. Sonoma 1722 Barlau Lane, Sebastopol. 51 Comment
  CAS-BOT-BC499779  Orobanche californica subsp. grayana Peter Rubtzoff 1971-8-9 6637 Sonoma Laguna, Chileno Valley Comment
  CAS-BOT-BC500337  Orobanche uniflora subsp. occidentalis Barrett Anderson 1986-4-9 2872 Sonoma Ida Clayton Rd, N of Kellogg 745 Comment
  CAS-BOT-BC7012  Orthocarpus castillejoides Alice Eastwood; John Thomas Howell 1936-5-19 2518 Sonoma 2 miles N of Windsor Comment
  SDSU10841  Orthocarpus erianthus var. roseus D. F. Howe 1969-5-29 4583 Sonoma Sea Ranch. Comment
  SEINET12270158  Orthocarpus faucibarbatus Unknown 1936-1 13418 Sonoma near Healdsburg Comment
  UC1295818  Osmorhiza berteroi unknown 1892-2 Sonoma Petrified Forest Comment
  POM139492  Oxalis albicans subsp. pilosa A. A. Heller, H. E. Brown 1902-4-9 8378 Sonoma Three Miles South of Healdsburg. Comment
  JEPS76915  Oxalis oregana Robert M. Lloyd 1963-2-24 2047 Sonoma 1/2 mi n Occidental (abandoned picnic ground, on rd to Camp Meeks) 45 Comment
  UCD160299  Packera eurycephala James A. Neilson Jr. 1975-5-17 3192 Sonoma West of State Highway 29, Robert Louis Stevenson State Park, 2/3 of the way to summit of Mt. St. Helena along road. (Exact location unknown. Elevation and coordinates estimated by label maker.) 1165 Comment
  CAS-BOT-BC376219  Panicum Greg de Nevers 1996-9-6 10873 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. In Mark West Creek 487 Comment
  UCD166341  Panicum Peter Rubtzoff 1968-9-21 5977 Sonoma Russian River Bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  UC1023571  Panicum acuminatum var. acuminatum Milo S. Baker Apr 1936 252 Sonoma Sonoma Co. Geysers Comment
  UC1131619  Panicum acuminatum var. acuminatum H. S. Yates 1936-5-16 5589 Sonoma 2 mi se Forestville; Sebastopol Quad. Comment
  UCD88559  Panicum acuminatum var. fasciculatum Freed W. Hoffman 1942-6-21 2143 Sonoma At 'Hillcrest' on highway from Forestville to Sebastopol. Comment
  CAS-BOT-BC253772  Panicum capillare Peter Rubtzoff 1959-9-19 4275 Sonoma Russian River bottom, Vacation Beach, near Guerneville Comment
  UC1146579  Panicum capillare Freed W. Hoffman 1946-8-17 802 Sonoma Russian River near Korbel; North Coast Ranges, Russian River near Korbel Comment
  CAS-BOT-BC253655  Panicum capillare John Thomas Howell 1957-9-26 32977 Sonoma Russian River bottom near Guerneville Comment
  UCSC000082  Panicum capillare Ken Kellman 1998-9-12 s.n. Sonoma Sandy ground above overflow pool of the Russian River, near Guerneville Comment
  UC1146647  Panicum miliaceum subsp. miliaceum Freed W. Hoffman 1942-8-26 2272 Sonoma near Guerneville (Herr Ranch); North Coast Ranges, Herr Ranch Comment
  JEPS86295  Parentucellia latifolia Jack and Betty Guggolz 1989-5-5 1012 Sonoma Comment
  RSA800123  Parentucellia viscosa Peter Rubtzoff 1971-6-10 6538 Sonoma Pitkin Marsh, near Forestville, along western border of the upper part of the marsh. Comment
  CAS-BOT-BC265687  Paspalum distichum Peter Rubtzoff 1958-8-16 3868 Sonoma Laguna de Santa Rosa north of Sebastopol, near Occidental Road Comment
  CAS-BOT-BC265690  Paspalum distichum Peter Rubtzoff 1955-7-17 1973 Sonoma Guerneville Marsh Comment
  CAS-BOT-BC265693  Paspalum distichum Peter Rubtzoff 1958-7-26 3809 Sonoma Laguna de Santa Rosa east of Sebastopol Comment
  UCD148512  Paspalum distichum Peter Rubtzoff 1965-8-16 5607 Sonoma Russina River margin at Forest Hills (5.5 miles E of Guerneville). Comment
  CAS-BOT-BC202874  Paxistima myrsinites Richard Mc. P Brown 1979-7-4 s.n. Sonoma Camp Meeker, St. Dorothy's Rest (Episcopalian retreat) Comment
  UC1239018  Pedicularis densiflora Freed W. Hoffman 1947-2-28 603 Sonoma headwaters of Palmer Creek (a branch of Mill Creek); North Coast Ranges, Wild Hog Ridge Comment
  SEINET8733624 Image available Pedicularis densiflora Laura Zeller 1965-1 3 Sonoma Ca. 1.5 miles E of Highway 12 on Cavedale Road 198 Comment
  CAS-BOT-BC69304  Pellaea andromedifolia Peter Rubtzoff 1952-6-3 1145 A Sonoma South slopes of Fitch Mtn., near Healdsburg Comment
  CAS-BOT-BC71483  Pellaea mucronata Walter Knight; Irja Knight 1964-1-17 519 Sonoma Hooker Canyon, Cavedale Rd. Comment
  UCD158871  Pellaea mucronata James A. Neilson Jr.; Teresa A. Sholars 1974-12-29 2913 Sonoma Mayacmas Mountains; unnamed creek east of Truit Creek, ca 2 miles west of The Geysers. (Elevation estimated by label maker using Google Earth.) 457 Comment
  UC42625  Pellaea mucronata var. mucronata F. T. Bioletti 1891-12-25 Sonoma Sonoma Comment
  SEINET12326114  Penstemon heterophyllus W. Knight, Knight, I. 1983-1 4710 Sonoma Calistoga Rd 2.5 mi from State Route 12,300 yds S of summit 152 Comment
  CAS-BOT-BC245722  Penstemon newberryi var. sonomensis F. T. Bioletti; Michener 1893-5-1 91 Sonoma Hood's Peak Comment
  CHSC28811  Pentagramma triangularis Jane A. Rogers 1979-4-15 12 Sonoma S side of Barnett Valley Rd., ca. 2 mi. e of intersection of Barnett Valley Rd. and Bodega Hwy., ca. 4 mi. w of Sebastopol. 137 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
  CAS-BOT-BC413657  Persicaria amphibia Peter Rubtzoff 1963-7-6 5197 Sonoma Laguna de Santa Rosa northeast of Graton, ca. 1/2 mi. north of Guerneville Rd. crossing Comment
  CAS-BOT-BC413664  Persicaria amphibia Volney Rattan 1877-6-4 s.n. Sonoma Guerneville Comment
  CAS-BOT-BC418916  Persicaria hydropiperoides Peter Rubtzoff 1956-9-15 2897 Sonoma Atascadero Creek Marsh Comment
  CAS-BOT-BC418899  Persicaria hydropiperoides Peter Rubtzoff 1951-7-1 349 Sonoma Pitkin Marsh, near Forestville. North of the Lower Marsh Comment
  CAS-BOT-BC419122  Persicaria lapathifolia Walter Knight; Irja Knight 1963-9-13 253 Sonoma On Rainsville Rd near Liberty Road, Petaluma Comment
  CAS-BOT-BC419416  Persicaria punctata Mary P. Wells 1985-7-7 539 Sonoma Ducker Creek, Rincon Valley, Santa Rosa Comment
  CAS-BOT-BC419428  Persicaria punctata Peter Rubtzoff 1955-8-28 2106 Sonoma Forestville Marsh Comment
  UCD98401  Petrorhagia nanteuilii Ivette Loredo-Prendeville; Nicole Canon 1993-4-24 67 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. 259 Comment
  JEPS128247  Phacelia corymbosa Roger Raiche 2000-5-28 116 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UC1047018  Phacelia corymbosa L. R. Heckard and C. R. Bell 1951-6-12 154 Sonoma ridge above Pine Flat (reached by road from Alexander Valley to Middletown) Comment
  POM298993  Phacelia distans J. T. Howell 1930-6-8 5274 Sonoma North end of Bodega Bay. Comment
  UC702959  Phacelia distans John Thomas Howell 1930-6-8 5274 Sonoma sand hills at n end Bodega Bay (type locality region) Comment
  UC703123  Phacelia distans John Thomas Howell 1929-6-9 4306 Sonoma near Petrified Forest Comment
  RSA177903  Phacelia distans Robert F. Thorne 1965-4-20 34358 Sonoma On Cavedale Road, half mile up from State Highway 12, ca. four miles north of Sonoma. 244 Comment
  POM299003  Phacelia divaricata J. T. Howell 1931-4-18 6421 Sonoma Mouth of Salmon Creek, two miles north of Bay. Comment
  JEPS35562  Phacelia egena L. R. Heckard 1964-6-11 1370 Sonoma along Trenton-Healdsburg road (Eastside Rd) 2 1/2 mi s junction with Windsor River Road Comment
  SD72089  Phacelia imbricata John Thomas Howell 1929-6-9 4302 Sonoma 2.0 miles north of Sonoma. Comment
  UCD120562  Phacelia malvifolia Frederica Bowcutt 1984-6-23 423 Sonoma Salt Point State Park. Approx. 20 miles N of Jenner and 80 miles S of Fort Bragg along the Sonoma County coast. N of Gerstle Cove ca. 1/8 mile. W of Hwy 1. Salt Point State Park. 15 Comment
  CAS-BOT-BC156325  Phalaris angusta Peter Rubtzoff 1972-6-23 6785 Sonoma Atascadero Creek Marsh. Comment
  CAS-BOT-BC258955  Phalaris aquatica Mary P. Wells 1984-5-31 323 Sonoma Friends House, Rincon Valley, Santa Rosa Comment
  UC1132418  Phalaris californica H. S. Yates 1936-5-16 5618 Sonoma near Green Valley School; Sebastopol Quadrangle Comment
  UCD88771  Phalaris californica H. S. Yates 1936-5-16 5618 Sonoma California Forest and Range Experiment Station. Near Green Valley School. 91 Comment
  UC730028  Phalaris californica Leo F. Koch 1940-4-20 806 Sonoma along Plantation Road ten mi from Highway 101 Comment
Read comments
Jun 1 2015
  UCD88994  Phalaris lemmonii John Thomas Howell 1943-5-10 s.n. Sonoma 2 miles N of Windsor. Comment
  CAS-BOT-BC265912  Phalaris lemmonii David L. Morgan 1961-5-4 s.n. Sonoma Field on Stony Point Road near Graventein Highway Comment
  CAS-BOT-BC265941  Phalaris minor Peter Rubtzoff 1962-6-13 4904 Sonoma Freestone Marsh Comment
  JEPS70603  Phalaris minor Chas. Rule 1846-6-9 Sonoma within one mi of the ocean Jenner; , within one mi of the ocean Comment
  CAS-BOT-BC250745  Phalaris paradoxa John Thomas Howell; Walter Knight; Irja Knight 1987-6-4 6243 Sonoma Todd Road Preserve 24 Comment
  UC1011004  Phalaris paradoxa Virginia Bufford 1936-5-20 341 Sonoma Kellogg Mark West Rd 3 mi from Mark West; 3 mi from Mark West Comment
  UC50459  Phalaris paradoxa Mr. Leckenby June 1896 Sonoma Petaluma Comment
  UCD89309  Phleum alpinum Freed W. Hoffman 1943-6-6 2213 Sonoma Ocean bank at Wright's Beach, Sonoma Coast. Comment
  JEPS69993  Phlox speciosa subsp. occidentalis Milo S. Baker 1928-3-24 2718 c Sonoma 5 mi w Healdsburg (on Jensen ranch) Comment
  CAS-BOT-BC135032  Phoradendron bolleanum Catherine Best 1981-5-2 s.n. Sonoma Harrison Grade Rd 2 miles N of Occidental Comment
  CAS-BOT-BC171217  Phoradendron serotinum subsp. tomentosum G. De Nevers 1981-7-1 1725 A Sonoma Pepperwood Ranch. Along the Road to the Studio on Horse Hill Comment
  UC327  Phyllospadix scouleri Milo S. Baker 1899-6-28 Sonoma near mouth of Russian River Comment
  CAS-BOT-BC140626  Physocarpus capitatus Greg de Nevers 1987-5-11 8179 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Rd., Santa Rosa 400 Comment
  SEINET11912073  Physocarpus capitatus F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -264 Sonoma ca 10 mi from Warm Springs Dam on Old Stewart Point-Skaggs Springs Road 150 Comment
  OBI75343  Pickeringia montana Michener & Bioletti, Bioletti May 1893 s.n. Sonoma Hood's Peak Comment
  POM20260  Pickeringia montana var. montana Michener, Bioletti 7160 Sonoma Hoods Peak Comment
  CAS-BOT-BC202286  Pickeringia montana var. montana Severin A. Baumann 1953-7-4 14 Sonoma Along edge of road connecting Oakville and Boyes Springs, ca. 5 mi. from Boyes Springs 304 Comment
  UCR278821  Pinus lambertiana Ann Howald 2016-1-21 3552 Sonoma North Coast Ranges, Annapolis Ridge, c. 0.3 mile north of Annapolis Rd and 0.4 mile west of Soda Springs Rd. 223 Comment
  UCD134772  Pinus muricata Chris Bowen 1974-6-6 143 Sonoma On side of first hills east of Highway 1; Sea Ranch, near State Highway 1. 36 Comment
  UCD134794  Pinus muricata Lalit M. Srivastava 1957-11-2 25 Sonoma East side of State Highway 1, ca. 2 miles north of Fort Ross. 30 Comment
  UCD133336  Pinus sabiniana Frederica Bowcutt 1994-6-25 1916 Sonoma 609 Comment
  UCSC008263  Piperia elegans Randall Morgan 1989-1-1 1322 -P Sonoma Malm Flat Trail, Sugarloaf Ridge State Park Comment
  JEPS128341  Piperia elongata Roger Raiche 2010-7-17 037 .10 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC154157  Plagiobothrys Peter Rubtzoff 1972-5-14 6741 Sonoma 4.25 mi. W of Glen Ellen on Bennett Valley Road Comment
  CAS-BOT-BC157648  Plagiobothrys Peter Rubtzoff; Tim Tunison; Nancy Harrison 1976-6-5 8582 Sonoma False Lake Meadow area, Annadel State Park. Comment
  RSA784981  Plagiobothrys Peter Rubtzoff 1969-5-11 6047 Sonoma Laguna de Santa Rosa NE of Graton, at end of Piner Road Comment
  JEPS117078  Plagiobothrys Peter Warner 2010-5-6 141 Sonoma Annadel State Park, in upland vernal pool ~250 m N of Canyon Trail, ~220 m W of Spring Creek, just S of old rock wall Comment
  RSA620971  Plagiobothrys bracteatus Peter Rubtzoff 1959-4-18 4028 Sonoma Laguna de Santa Rosa northeast of Graton, about 0.5 miles north of Guerneville road crossing Comment
  UC1229794  Plagiobothrys bracteatus Robert Ornduff 1960-4-21 6073 Sonoma in midst of housing development on both sides Hayes St. (s of Sonoma Elementary School, w edge of Sonoma); Sonoma Comment
  UCD120792  Plagiobothrys collinus var. californicus Roxana S. Ferris; Laura Lorraine 1961-6-14 13541 Sonoma Willow Creek Road between Occidental and Jenner, 5.7 miles from Jenner. Comment
  JEPS21216  Plagiobothrys nothofulvus H. S. Yates 1934-4-22 3842 Sonoma 2 mi s Mark West; Calistoga Quadrangle Comment
  RSA788371  Plagiobothrys reticulatus Peter Rubtzoff, H. A. Froebe 1971-5-16 6455 Sonoma Duncans Mills Marsh. Comment
  CAS-BOT-BC228494  Plagiobothrys strictus Rimo Bacigalupi 1926-3-27 1248 Sonoma Opposite Myrtledale Geyser 1 1/2 miles N of Calistoga Comment
  SD130522  Plagiobothrys tenellus F. Almeda, G. DeNevers 1981-3-30 4892 Sonoma southeast facing slopes just west of the Redwood Canyon. Comment
  UCD35306  Plagiobothrys tenellus Beecher Crampton 1955-4-5 2409 Sonoma 3 miles west of Fulton, along Woolsey Road, below Mt. Olivet School. Comment
  RSA783847  Plagiobothrys undulatus Peter Rubtzoff 1976-6-5 8582 Sonoma False Lake Meadow area, Annadel State Park. Comment
  CAS-BOT-BC293681  Plantago Peter Rubtzoff 1958-7-19 3763 Sonoma Laguna de Santa Rosa, east of Sebastopol. Comment
  CAS-BOT-BC376388  Plantago coronopus Greg de Nevers 1993-4-26 10403 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Mountain House driveway. 400 Comment
  SD130533  Plantago erecta F. Almeda, G. DeNevers 1981-3-30 4880 Sonoma Vicinity of the Bechtel Cabin. Comment
  UCD124501  Plantago erecta Collector Unknown Date Unknown s.n. Sonoma Exact location unknown. Comment
  UC496402  Plantago lanceolata Merle Randall 1930-4-10 Sonoma Fort Ross to Jenner 91 Comment
  JEPS7156  Plantago maritima var. californica W. L. Jepson 1931-7-19 15948 Sonoma near Scotta Creek (between Bodega Bay and mouth of Russian River) Comment
  CAS-BOT-BC257367  Plantago subnuda Peter Rubtzoff 1954-8-9 1658 Sonoma Bodega Head Marsh. Comment
  CHSC22752  Platystemon californicus Robert A. Schlising 1962-3-31 2111 Sonoma California Coast Ranges. In pastured field. Comment
  SD130425  Platystemon californicus F. Almeda, G. DeNevers 1981-3-30 4882 Sonoma Vicinity of the Bechtel Cabin. Comment
  UC50149  Platystemon californicus Willis L. Jepson 1893-4-25 Sonoma trail to Caux's Cabin w St. Helena; w of St. Helena Comment
  UC416756  Plectritis ciliosa subsp. ciliosa Milo S. Baker 1898-3-26 691 Sonoma Hills near McDonald's Reservoir Comment
  SEINET780339  Plectritis samolifolia J. Ewan 1935-5-13 9262 Sonoma Wright School on Sebastopol Road. Comment
  CAS-BOT-BC173802  Pleuropogon Peter Rubtzoff 1966-5-7 5708 Sonoma On north side of Hessel Road, just west of Highway 116. Comment
  UC1024775  Pleuropogon californicus Leo Whitney 1935-3-17 2354 a Sonoma Santa Rosa Comment
  CAS-BOT-BC260967  Pleuropogon californicus var. californicus John R. Reeder; Charlotte G. Reeder 1973-5-28 6197 Sonoma Ca. 12 miles S of Dixon, ca. 1 mile SW of Dozier Station 30 Comment
  CAS-BOT-BC260985  Pleuropogon californicus var. californicus A. A. Heller 1902-4-15 5294 Sonoma Santa Rosa Comment
  UCD90132  Pleuropogon californicus var. californicus Beecher Crampton 1955-4-5 2417 Sonoma 2.5 miles south of Windsor, western boundary of Sonoma County Airport, along Mark West Road. Comment
  UCD90133  Pleuropogon californicus var. californicus Beecher Crampton 1955-4-5 2418 Sonoma 3 miles northwest of Cotati, Llano Road. Comment
  UCD90169  Pleuropogon californicus var. californicus David L. Morgan 1961-4-25 s.n. Sonoma junction of Meacham Rd. and Pepper Rd., approx. 3 miles southwest of Cotati. Comment
  UCD90199  Pleuropogon californicus var. californicus L. Whitney 1935-3-23 s.n. Sonoma Santa Rosa, Prune Orchard. Comment
  JEPS75984  Pleuropogon hooverianus Craig D. Thomsen 1977-4-16 Sonoma adjacent to Pressley Road (on Sonoma Mountain); Sonoma Mountain 225 Comment
  UC1446217  Pleuropogon hooverianus Paul But with Grace Law 1977-5-3 P 6 Sonoma 3 mi ne of Penngrove (along Pressley Road) Comment
  SEINET10590027  Poa A. Arthur Heller 1902-5-29 Heller 5628 Sonoma Near the summit of Mt. Hood. Comment
  CAS-BOT-BC255599  Poa annua Peter Rubtzoff 1960-5-22 4401 Sonoma Laguna de Santa Rosa area E of Graton, between Occidental and Guerneville roads Comment
  POM204981  Poa douglasii A. A. Heller 1902-3-29 5187 Sonoma Bodega Bay Comment
  RSA63655  Poa howellii Milo S. Baker s.n. Sonoma Hood Mountain; above Gray Ranch 305 Comment
  CAS-BOT-BC255851  Poa kelloggii P. B. Kennedy 1915-5-28 s.n. Sonoma Del Mar Comment
  CAS-BOT-BC256036  Poa pratensis Peter Rubtzoff 1963-6-5 5153 Sonoma Brooks Gulch Marsh Comment
  UCD91933  Poa pratensis David L. Morgan 1961-4-12 s.n. Sonoma Two Rock Highway, 3 mi. S of Bloomfield. Comment
  CAS-BOT-BC243246  Poa secunda subsp. secunda John Thomas Howell; et al. 1981-5-14 53950 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles NE of Penngrove on the W slope of Sonoma Mountain 457 Comment
  UC1132792  Poa secunda subsp. secunda H. S. Yates 1934-4-22 3852 Sonoma 2 mi s Mark West; Calistoga Quadrangle Comment
  CAS-BOT-BC243256  Poa secunda subsp. secunda G. DeNevers 1982-3-28 1943 A Sonoma Sugarloaf Ridge State Park, near the parking lot Comment
  CAS-BOT-BC244191  Poa trivialis Peter Rubtzoff 1960-6-5 4435 Sonoma Laguna de Santa Rosa area NE of Graton, near the Laguna Road Comment
  CAS-BOT-BC244194  Poa trivialis Peter Rubtzoff 1962-5-25 4831 Sonoma Laguna de Santa Rosa N of Sebastopol, near Occidental Road crossing Comment
  UCD92137  Poa unilateralis Beecher Crampton 1973-5-5 8928 Sonoma Sonoma Coast State Park at Carmet. Comment
  CAS-BOT-BC376254  Pogogyne serpylloides Greg de Nevers 1995-5-5 10719 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Weimar Flat roadbed vernal pools 487 Comment
  UCSB15931  Polygala californica Breedlove, Dennis 1962-6-6 Sonoma Along State Highway 128, 1.5 miles northwest of U.S. Highway 101 at Cloverdale 121 Comment
  SEINET5845267  Polygala californica J. Grimes 1981-5-22 1991 Sonoma Dry Creek Road at intersection with Skaggs Springs-Stewarts Point road above Warm Springs Dam west of Geyserville Comment
  UCD160122  Polygala cornuta James A. Neilson Jr. 1973-6-3 2993 Sonoma Mayacmas Mountains. The Geysers. Site I. (Location and elevation of Site I estimated from Neilson 2994 which has Township/Range data and says that Site I is in Geyser Canyon. Coordinates estimated by label maker.) 853 Comment
  CAS-BOT-BC258015  Polygonum Peter Rubtzoff; Nancy Harrison; Ruth Hass; Charles Quibell 1974-8-31 7847 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC290599  Polygonum Peter Rubtzoff 1966-8-25 5802 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  CDA11982  Polygonum bolanderi G. F. Hrusa, T. D. Wilfred 1995-12-3 12487 Sonoma North Coast Biodiversity Arena; Summit of Chalk Mtn. on the W face. Foote Ranch property, NW base of Mt. St. Helena, immediately N of Ida Clayton Rd. Comment
  SEINET11935785  Polygonum lapathifolium J. T. Vale 1988-1 Sonoma In old bed of Russian River about 1/4 mi below bridge at Hacienda among boulders Comment
  HSC34929  Polypodium californicum Thomas W. Nelson, James Nelson 1975-3-25 1761 Sonoma Beside Hwy. 128, E of Geyserville at the Sonoma-Napa Co. line Comment
  UCD55140  Polypodium glycyrrhiza Ellen Dean; Tammie Beyerl 2006-4-28 3022 Sonoma Town of Kenwood. East of Hwy. 12. Kunde Vineyards. Vicinity of Pepperwood Lake Reservoir. 179 Comment
  UC42912  Polypodium scouleri F. T. Bioletti 1892-7-6 Sonoma Gualala River Comment
  UCR254831  Polypogon Peter Rubtzoff 1970-9-3 6376 Sonoma Marsh off west side of Highway 1, 0.7 miles SE of Salmon Creek crossing 30 Comment
  CAS-BOT-BC232998  Polypogon australis Peter Rubtzoff 1961-9-20 4754 Sonoma Willow Creek Marsh Comment
  CAS-BOT-BC233001  Polypogon australis Peter Rubtzoff 1951-7-1 327 Sonoma Pitkin Marsh, near Forestville. Lower part of the Upper Marsh Comment
  RSA201192  Polypogon australis Peter Rubtzoff 1955-8-13 2044 Sonoma Duncan Mills Marsh. Upper portion of the marsh. Comment
  CAS-BOT-BC233189  Polypogon interruptus Peter Rubtzoff 1951-6-16 220 Sonoma Pitkin Marsh, near Forestville, N half of Lower Marsh Comment
  CAS-BOT-BC233195  Polypogon interruptus Peter Rubtzoff 1960-5-22 4407 Sonoma Laguna de Santa Rosa area E of Graton, between Occidental and Guerneville Roads Comment
  SEINET197659 Image available Polypogon interruptus L. Koch 1940-6-5 1012 Sonoma Hills behind Fountaingrove Vinyard 3 mi N of Santa Rosa along Hwy 101 Comment
  SEINET8719333 Image available Polypogon lutosus Leo Koch 1940-1 1012 Sonoma Behind Fountaingrove Vineyard three miles north of Santa Rosa along Highway 101 Comment
  CAS-BOT-BC237396  Polypogon monspeliensis Walter Knight; Irja Knight 1963-8-13 276 Sonoma Horseshoe Cove Comment
  CAS-BOT-BC237416  Polypogon monspeliensis A. A. Heller 1902-4-23 5353 Sonoma Near Sonoma Comment
  CAS-BOT-BC368071  Polystichum californicum Greg de Nevers 1998-5-31 11269 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Along Mark West Creek. 400 Comment
  CAS-BOT-BC72167  Polystichum californicum Walter Knight; Irja Knight; Dr. Steve Edwards 1986-6-9 5447 Sonoma Annadel State Park 83 Comment
  UCD136561  Polystichum munitum Botany 102 Students 1993-5-8 103 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. Comment
  UCD19303  Polystichum munitum Terry Reedy 1974-5-11 236 Sonoma Bodega Head, shady gully south of road to Field Station. 12 Comment
  CAS-BOT-BC257354  Populus Peter Rubtzoff 1980-5-26 9447 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC102353  Populus alba Peter Rubtzoff 1972-8-25 6854 Sonoma San Antonio Creek on east side of Hwy 101 crossing Comment
  CDA15401  Potamogeton filiformis G. F. Hrusa, R. Gross 1997-8-31 14094 Sonoma North Coast Biodiversity Arena; Uncommon in pond on Foote Ranch, NW base of Mt. St. Helena. Immed. NE of int. of Hwy. 128 and Ida Clayton Road. Single patch in desely vegetated corner on N side of pond. Flowering spikes emersed. Comment
  CAS-BOT-BC267174  Potamogeton foliosus Peter Rubtzoff 1956-9-11 2843 Sonoma Vacation Beach, near Guerneville, pool on Russian River bottom Comment
  UCR244637  Potamogeton nodosus Peter Rubtzoff 1971-9-1 6669 Sonoma Spring Creek Reservoir area, east of Santa Rosa 87 Comment
  CAS-BOT-BC453900  Potamogeton nodosus D. E. Breedlove 1980-6-27 44737 Sonoma Pepperwood Ranch W of Knights Valley Comment
  CAS-BOT-BC454085  Potamogeton pusillus subsp. pusillus D. E. Breedlove 1980-6-27 44736 Sonoma Pepperwood Ranch W of Knights Valley Comment
  CAS-BOT-BC141954  Potentilla anserina subsp. pacifica Peter Rubtzoff 1955-8-20 2066 Sonoma Bodega Harbor Marsh - Sonoma County Marshes Comment
  SEINET12052828  Prosartes hookeri F. H. Utech, Kawano, S.; Ohara, M. 1995-1 95 -57 Sonoma 11.5 mi WNW of Lake Sonoma on Skaggs Springs Road along Skaggs Springs Creek Comment
  CAS-BOT-BC516396  Prosartes hookeri J. W. Congdon 1880-4-1 s.n. Sonoma Santa Rosa Comment
  CAS-BOT-BC517367  Prosartes smithii Mildred Parks 1925-7-20 s.n. Sonoma Stewarts Point Comment
  JEPS62502  Prunella vulgaris var. lanceolata Alice King June 1897 Sonoma Healdsburg Comment
  CAS-BOT-BC356928  Pseudognaphalium californicum G. DeNevers 1981-7-25 1872 Sonoma Pepperwood Ranch. In Garrison Canyon Comment
  RSA785670  Pseudognaphalium luteoalbum Peter Rubtzoff 1968-8-18 5931 Sonoma Laguna de Santa Rosa, E of Graton, between Occidental and Guerneville roads. Comment
  UC176853  Pseudognaphalium stramineum P. B. Kennedy 1912-5-27 Sonoma Bodega Bay Comment
  CAS-BOT-BC361615  Pseudognaphalium stramineum A. A. Heller 1982-5-27 s.n. Sonoma Bodega Bay Comment
  HSC2215  Pseudognaphalium stramineum Roxana S. Ferris 1937-8-18 9375 Sonoma At mouth of Salmon Creek on Bodega Bay Comment
  CAS-BOT-BC80182  Pseudotsuga menziesii Peter Rubtzoff 1951-8-18 636 Sonoma Western branch of the Upper Marsh Comment
  CAS-BOT-BC166787  Psilocarphus Peter Rubtzoff 1971-6-10 6531 Sonoma Laguna de Santa Rosa, east of Graton, between Occidental and Guerneville Roads. Comment
  CAS-BOT-BC166710  Psilocarphus Peter Rubtzoff 1959-6-20 4150 Sonoma Willow Creek Marsh Comment
  CAS-BOT-BC176171  Psilocarphus Peter Rubtzoff 1966-5-30 5746 Sonoma Laguna de Santa Rosa, northeast of Graton, at end of Piner Road. Comment
  UCD166297  Psilocarphus Peter Rubtzoff 1966-5-30 5746 Sonoma Laguna de Santa Rosa, northwest of Graton, at end of Piner Road. Comment
  HSC100954  Psilocarphus oregonus Peter Warner 2011-5-13 193 Sonoma Jenner Headlands, Dairy Field, northern area, S of Johnson Ranch,along cattle trails, ~250 m E of Hwy. 1. 77 Comment
  CAS-BOT-BC362072  Psilocarphus tenellus Alice Eastwood 1921-5-8 10466 Sonoma Petaluma Comment
  CAS-BOT-BC362079  Psilocarphus tenellus John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary P. Wells 1981-5-14 53942 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles northeast of Penngrove on the west slope of Sonoma Mountain 457 Comment
  CHSC34599  Pteridium aquilinum var. pubescens Jeffrey D. Prouty 1979-4-12 211 Sonoma Ca. 7 mi n of Santa Rosa, e of Mark West Springs Rd. 243 Comment
  UCR222563  Pteridium aquilinum var. pubescens George K. Helmkamp, E. A. Helmkamp 2010-6-5 16252 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
  SEINET6033390  Pteridium aquilinum var. pubescens P. L. Henderson 1977-4-30 77 -6 Sonoma Bodega Bay, on high ground above coast Comment
  CAS-BOT-BC421373  Pterostegia drymarioides Greg de Nevers 1990-4-19 9666 Sonoma Pepperwood Natural Preserve. 3450 Franz Valley Road. On south slope of Telegraph Hill. 457 Comment
  POM165161  Pterostegia drymarioides A. A. Heller, H. E. Brown 1902-5-27 s.n. Sonoma Bodega Bay. Comment
  SD225863  Quercus X chasei John M. Tucker 1952-9-20 2624 Sonoma Voight Ranch, ca. 1.25 mi. (airline) southwest of Cunningham, large tree in the back yard of the Voight house. Comment
  CHSC78080  Quercus agrifolia David Cherrtham 1998-6-26 34 Sonoma I street extension, Petaluma. 42 Comment
  SEINET12030396  Quercus agrifolia W. Knight, Knight, I.; Howell, J. T. 1984-1 s.n. Sonoma 0.4mi up Cavedale Rd from Hwy-12 91 Comment
  UC1193267  Quercus berberidifolia R. H. Neuns 1950-5-3 101 Sonoma 6 mi e Geyserville 426 Comment
  UC405491  Quercus chrysolepis W. P. Taylor 1913-6-23 Sonoma Cazadero Comment
  UCD46181  Quercus dumosa J. M. Tucker 1977-6-16 4395 Sonoma On Shurtleff Ranch off Chalk Hill Road to the east, ca. 4 miles (air-line) northeast of East Windsor (or ca. 10 miles, airline, north-northwest of Santa Rosa), Sonoma County, California. 121 Comment
  SEINET12030397  Quercus dumosa W. Knight, Knight, I.; Howell, J. T. 1984-1 5078 Sonoma 0.4mi up Cavedale Rd from State Tr-12 91 Comment
  CAS-BOT-BC94151  Quercus durata G. De Nevers 1981-9-12 1936 Sonoma Pepperwood Ranch, on hill top N of Bechtel Cabin Comment
  SD113991  Quercus durata Darley F. Howe 1972-4-28 4813 Sonoma Mt Hood Range, Trinity Road 395 Comment
  SD99409  Quercus durata Christopher Davidson 1977-6-20 6012 Sonoma 8.6 miles west of Geyserville, on Dry Creek Road 91 Comment
  HSC8232  Quercus garryana L. S. Rose 1964-8-26 64066 Sonoma 6 mi NE of Penngrove 366 Comment
  SJSU16080  Quercus garryana Allen W. Jacobs 1934-8-1 3 Sonoma Found near the Hilton on NW slope above the Russian River Comment
  UC424818  Quercus garryana Milo S. Baker 1927-11-5 2503 b Sonoma 2-3 mi w Skagg's Springs Hwy. Comment
  OBI37030  Quercus garryana var. garryana P. C. Pende 1979-10-7 s.n. Sonoma On hwy 116 3 mi from Sebastopol Comment
  CAS-BOT-BC105485  Quercus kelloggii Lewis S. Rose 1964-6-27 64058 Sonoma 2 miles N of Sonoma 900 Comment
  SJSU16078  Quercus kelloggii Allen W. Jacobs 1938-9-10 417 Sonoma North of Cloverdale about 2 1/2 miles beyond fork on Saint Bragg Road Comment
  UC478894  Quercus kelloggii Marcus E. Jones, A. M. 1931-7-5 28847 Sonoma The Geysers Comment
  SEINET12030400  Quercus kelloggii W. Knight, Knight, I.; Knight, T. 1985-1 5387 Sonoma Pine Mt. Road Comment
  CAS-BOT-BC62846  Quercus lobata Dorothy Scherer 1996-10-14 74 Sonoma North of barn off Deaview Rd. SE corner of Fort Ross State Historic Park 441 Comment
  UC1193235  Quercus wislizeni R. H. Neuns 1950-4-26 95 Sonoma 5 mi w The Geysers (Sulphur Creek Rd) 457 Comment
  JEPS73359  Ranunculus aquatilis var. subrigidus Edward Lee 1934-4-30 749 Sonoma 1 mi w Two Rock Junction Comment
  CAS-BOT-BC378696  Ranunculus californicus var. californicus V. Penalosa 1961-5-24 1579 Sonoma Unspecified Comment
  UCR139478  Ranunculus californicus var. cuneatus A. A. Heller 1938-5-14 15082 Sonoma San Francisco Bay/Central Coast region, the bluff north of Bodega Bay 61 Comment
  RSA31774  Ranunculus californicus var. cuneatus A. A. Heller 1938-5-14 15082 Sonoma On the bluff N of Bay, Bodega Bay. Comment
  CAS-BOT-BC83409  Ranunculus lobbii Peter Rubtzoff 1972-3-31 6721 Sonoma Todd Road 1.4 mile from Highway 116 and 0.6 mile from Llano Road. Comment
  CDA11315  Ranunculus lobbii G. F. Hrusa, A. Buckman, R. Gross 1995-4-1 12030 Sonoma North Coast Biodiversity Arena; Laguna de Santa Rosa. Todd Rd. Reserve, near corner of Todd Rd. and Llano Rd. Comment
  UCR222564  Ranunculus occidentalis George K. Helmkamp, E. A. Helmkamp 2010-6-5 16251 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
  UCSB2075  Ranunculus occidentalis Keator, Glenn 1959-4-1 Sonoma 8.1 miles east of Digger Indian Reservation on Stewart Point-Geyserville highway. Comment
  UCD97051  Ranunculus orthorhynchus Mary M. Hektner 1976-4-3 231 Sonoma along ocean headlands above Shell Beach; Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  JEPS55134  Ranunculus pusillus Miss R. Kuhn 1913-4-16 Sonoma Sonoma Comment
  UC1084367  Raphanus sativus G. Thomas Robbins 1937-3-26 33 Sonoma along road to Bodega (just e of Bodega) Comment
  UCR179424  Rhagadiolus stellatus Caitlin Lewis, William Mutch 1993-4-17 s.n. Sonoma Sugarloaf Ridge State Park, c. 40 air mi N of San Francisco, 11 air mi east of Santa Rosa, and 2.5 mi NE of Kenwood. Adobe Canyon N of Sugarloaf Ridge and south of Red Mountain, near visitor center, along Sonoma Creek 366 Comment
  UCD135429  Rhagadiolus stellatus Caitlin Lewis; William Mutch 1993-4-17 25 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 Mtn 1 mile. Near visitor center. Along Sonoma Creek. 365 Comment
  UC1121748  Rhamnus californica R. W. Lundh 1932-7-19 121 Sonoma 1 mi nw Los Alamos School; Santa Rosa Quad. 518 Comment
  SEINET12211235  Rhamnus californica W. Knight, Knight, I.; Edwards, S. 1985-1 6330 Sonoma Bradford Mt., NW of Healdsburg 762 Comment
  UCD117936  Rhododendron occidentale Charles B. Heiser Jr. 1946-5-19 1750 Sonoma Vine Hill region, Pitkin Marsh. Comment
  CAS-BOT-BC200347  Rhododendron occidentale var. occidentale Peter Rubtzoff 1951-6-2 89 Sonoma Uppermost part of the western branch of the Upper Marsh Comment
  CHSC114305  Rhododendron occidentale var. occidentale G. F. Hrusa 1989-5-8 7006 Sonoma North Coast Ranges. Hogback Mtn. at headwaters of Agua Caliente and Nathanson Creeks NE of Sonoma. 518 Comment
  CAS-BOT-BC111891  Rhynchospora californica John Thomas Howell 1945-7-18 21321 Sonoma Pitkin Marsh 182 Comment
  UC710417  Rhynchospora californica John Thomas Howell 1936-7-26 12679 Sonoma 5 mi n Sebastopol (Pitkin Marsh); Pitkin Marsh Comment
  CAS-BOT-BC111907  Rhynchospora capitellata John Thomas Howell; J. W. Stacey 1936-7-26 12677 Sonoma Pitkin Marsh; 5 miles north of Sebastopol. Comment
  RSA35297  Rhynchospora capitellata J. T. Howell 1936-7-26 12677 Sonoma Pitkin Marsh, 5 miles north of Sebastopol. Comment
  RSA94074  Rhynchospora capitellata J. T. Howell 1945-8-14 s.n. Sonoma Perry Marsh Comment
  CAS-BOT-BC376237  Ribes Greg de Nevers 1996-4-19 10795 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Oak Hill Ranch, Devil's Kitchen 487 Comment
  UCD161867  Ribes James A. Neilson Jr. 1981-3-13 3994 Sonoma Mayacmas Mountains, location unkown. (Collections from this date were made from Hummingbird Creek.) Comment
  UC75440  Ribes californicum Milo S. Baker 1898-4-3 20 Sonoma between Forestville and Guerneville Comment
  UC75444  Ribes californicum Milo S. Baker 1898-4-4 19 Sonoma Sea View Comment
  RSA0024683  Ribes roezlii var. cruentum R. C. Bacigalupi 1948-3-6 2857 Sonoma Slopes of Mayacama Range, on road from The Geysers to Geyserville. Comment
  RSA0019544  Ribes sanguineum Michael A. Vincent, Ethan H. Freid 1998-4-8 8174 Sonoma Bodega Bay; 0.5 mile NE of city limits along Rt. 1. Comment
  CHSC26437  Ribes sanguineum var. glutinosum P. Kunst 1977-4-12 22 Sonoma Large population, ca. 3 yd n of Coleman Valley Rd and 2.5 mi w of Occidental. 219 Comment
  UCSB2662  Ribes sanguineum var. glutinosum Keator, Glenn 1959-4-1 Sonoma Near lumber mill; 1.8 miles north of Fort Ross monument; on highway 1 Comment
  CAS-BOT-BC168764  Ribes victoris A. A. Heller 1903-4-24 6615 Sonoma Woods near Cazadero Comment
  UC1182092  Ribes victoris var. minus C. R. Quick and Alice Quick 1935-3-10 171 Sonoma ne Kenwood (n from Sonoma, at foot of Mt. Hood); Mt. Hood, Canyon of Sonoma Creek Comment
  POM203710  Romanzoffia californica J. T. Howell 1931-4-18 6411 Sonoma Larkspur Rock near Bodega Bay. Comment
  UC881300  Romanzoffia californica Alice Eastwood 1917-5-13 Sonoma along rd. to Bodega Bay Comment
  CAS-BOT-BC488331  Rorippa curvisiliqua Ayzik Solomeshch 2009-5-14 s.n. Sonoma 2.3 km SE of city of Sebastopol. Santa Rosa Plain, Cooper Site, pool 1 22 Comment
  CAS-BOT-BC74710  Rorippa curvisiliqua Peter Rubtzoff 1970-5-30 6242 Sonoma 5 miles north of Sears Point. Comment
  CAS-BOT-BC376306  Rorippa sinuata Greg de Nevers 1992-5-13 10148 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Turtle Pond. 400 Comment
  CAS-BOT-BC371459  Rosa Greg de Nevers 1989-4-1 9071 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 400 Comment
  CAS-BOT-BC152659  Rosa californica Peter Rubtzoff 1951-7-7 363 Sonoma Western branch of the Upper Marsh - Pitkin Marsh, near Forestville Comment
  CAS-BOT-BC152666  Rosa californica Greg de Nevers 1986-11-7 8116 Sonoma Riebli Rd., NE of Santa Rosa 150 Comment
  CAS-BOT-BC152675  Rosa californica James McMurphy 1910-6-8 s.n. Sonoma roadside, hills east of Petaluma Comment
  CAS-BOT-BC251220  Rosa canina Peter Rubtzoff 1976-5-30 8565 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC146771  Rosa gymnocarpa Peter Rubtzoff 1953-5-17 1387 Sonoma South of Guerneville (Neeley Hill area) Comment
  RSA240594  Rosa gymnocarpa C. W. Tilforth, J. Dourley 1973-7-18 911 Sonoma 1 mile E of Occidental. Along Graton Rd. Comment
  SEINET11912078  Rosa gymnocarpa F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -258 Sonoma ca 10 mi from Warm Springs Dam on Old Stewart Point-Skaggs Springs Road 150 Comment
  CAS-BOT-BC146920  Rosa spithamea Milo S. Baker 1947-5-8 11755 Sonoma S.W. slope of Hood Mt. at top of Rose Butte 243 Comment
  UCD166412  Rubus Peter Rubtzoff 1960-5-16 4357 Sonoma Duncans Mills Marsh; upper portion of the marsh. Comment
  CAS-BOT-BC147184  Rubus parviflorus Alice Eastwood; John Thomas Howell 1939-6-11 74 ? Sonoma Near [Triniti] Trinity P.O., Hood Mt. Range Comment
  UCD113851  Rubus parviflorus Mary M. Hektner 1974-6-28 85 Sonoma Unit 21 Owners' Map, Sea Ranch, near State Highway 1. Comment
  UCD113815  Rubus spectabilis Mary M. Hektner 1974-6-2 12 Sonoma paralleling Fish Rock Road, just below Leeward Road, Unit 35-A Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC157174  Rubus ursinus Alice Eastwood 1915-6-29 4803 Sonoma Bodega Point Comment
  CAS-BOT-BC157182  Rubus ursinus Walter Knight; Irja Knight 1964-2-16 810 Sonoma Mill Creek Rd, W. of Healdsburg 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
  UCD17815  Rubus ursinus H. Olmo 8-10 May 1962 62 10 Sonoma California. Sonoma County: 1.6 miles south of Timber Cove on ocean front ravine. Comment
  CAS-BOT-BC164081  Rumex Peter Rubtzoff 1955-8-7 2029 Sonoma Guerneville Marsh. Along Pocket Canyon. Comment
  CAS-BOT-BC166690  Rumex Peter Rubtzoff 1958-7-20 3791 Sonoma Laguna de Santa Rosa, northeast of Graton (near Guerneville Road). Comment
  CAS-BOT-BC173544  Rumex Peter Rubtzoff 1964-6-24 5387 Sonoma Coleman Marsh. Salmon Creek. Comment
  RSA783796  Rumex Peter Rubtzoff 1964-6-3 5351 Sonoma Bodega Bay Marsh. Comment
  CAS-BOT-BC157665  Rumex Peter Rubtzoff 1971-6-29 6579 Sonoma Pitkin Marsh. Area 27. Comment
  UCD101121  Rumex crassus Ann F. Johnson 1979-6-19 s.n. Sonoma South of entrance road to Bodega Dunes State Park. Comment
  CAS-BOT-BC433410  Rumex crispus Mary P. Wells 1984-5-30 317 Sonoma Friends House, Rincon Valley, Santa Rosa Comment
  CAS-BOT-BC433413  Rumex crispus G. DeNevers 1981-5-30 1395 Sonoma Pepperwood Ranch. Near Pippindale Pond. Comment
  RSA783833  Rumex fueginus Peter Rubtzoff 1958-7-20 3792 Sonoma Laguna de Santa Rosa, NE of Graton (near Guerneville Road). Comment
  RSA783834  Rumex fueginus Peter Rubtzoff 1958-9-27 4007 Sonoma Laguna de Santa Rosa NE of Graton (near Guerneville Road). 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
  SEINET7042613  Rupertia physodes A. G. Vestal 1947-5-16 s.n. Sonoma 8.1 miles east of Winsor.Mark West Springs quadrangle UTM Zone 10, 531876mE, 4267566mN. Comment
  UCSB45520  Rytidosperma penicillatum Roos, John 1957-7-2 Sonoma Miller Ridge Comment
  CAS-BOT-BC445694  Sagittaria cuneata Peter Rubtzoff 1955-8-27 2101 Sonoma Bennett Mtn. Lake. Comment
  RSA247450  Sagittaria cuneata Peter Rubtzoff 1971-7-9 6594 Sonoma 5 miles north of Sears Point. Comment
  CAS-BOT-BC445775  Sagittaria latifolia Peter Rubtzoff 1955-8-28 2111 Sonoma Forestville Marsh. Comment
  CAS-BOT-BC290655  Salix Peter Rubtzoff 1974-4-17 7364 Sonoma Upper Green Valley Marsh. Comment
  UCR250389  Salix Peter Rubtzoff, J. E. Eckenwalder 1974-4-6 7361 Sonoma Salmon Creek, 0.25 mi. south of Freestone 64 Comment
  RSA0037217  Salix Peter Rubtzoff 1971-9-1 6679 Sonoma Spring Creek Reservoir area. Comment
  CAS-BOT-BC290592  Salix babylonica Peter Rubtzoff 1955-8-14 2051 Sonoma Forestville Marsh. Comment
  RSA0015567  Salix babylonica Peter Rubtzoff 1955-8-14 2051 Sonoma Forestville Marsh. Comment
  CAS-BOT-BC103080  Salix bonplandiana C. R. Ball; H. E. Parks 1931-2-17 22 Sonoma Santa Rosa Creek, 1 mile south of Santa Rosa Comment
  CAS-BOT-BC103083  Salix bonplandiana Peter Rubtzoff 1966-9-10 5819 Sonoma Atascadero Creek Marsh Comment
  RSA534570  Salix bonplandiana Peter Rubtzoff 1963-10-5 5291 Sonoma Laguna de Santa Rosa. E of Graton. Comment
  JEPS128331  Salix breweri Roger Raiche 2000-3-26 010 .00 Sonoma The Cedars. Lower Russian, Big Austin Creek watershed. Comment
  UC463100  Salix breweri Milo S. Baker 1931-10-10 5615 Sonoma near confluence with Sonoma Cr. (above Los Guilicos Val.); Fitzsimmons Cr. Comment
  RSA534507  Salix exigua Peter Rubtzoff 1966-4-30 5698 Sonoma Todd Road 1.4 miles from Hwy. 116 and 0.6 mile from Llano Road. Comment
  CAS-BOT-BC103841  Salix exigua subsp. melanopsis Peter Rubtzoff 1957-5-26 3372 Sonoma Vacation Beach, near Guerneville; bank of Russian River Comment
  UC482047  Salix exigua var. hindsiana Ball, Bracelin, Parks and Parks 1931-4-21 38 Sonoma 25 km n.w. of Calistoga (Maacama Creek) Comment
  UC453090  Salix lasiandra subsp. lasiandra W. A. Setchell 1931-7-25 10 Sonoma Bohemian Grove near Monte Rio; Russian R. Comment
  UC453095  Salix lasiandra subsp. lasiandra W. A. Setchell 1925-7-25 14 Sonoma Bohemian Grove near Monte Rio (Russian R.); 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-BC128067  Salix lasiandra var. lasiandra Baker; Ball; Bracelin; Crum 1931-5-9 347 Sonoma About 2 km. east of Bodega Bay. Comment
  CAS-BOT-BC128099  Salix lasiandra var. lasiandra Peter Rubtzoff 1952-3-23 891 Sonoma Pitkin Marsh, near Forestville, opening south of the Upper Marsh Comment
  CHSC118273  Salix lasiolepis Barbara L. Wilson 2015-9-22 18818 Sonoma Santa Rosa, Howarth Lake. 71 Comment
  UC1042518  Salix lasiolepis Peter Rubtzoff 1952-3-23 872 Sonoma Upper Marsh Pitkin Marsh (lower part, near Forestville) Comment
  UC1042520  Salix lasiolepis Peter Rubtzoff 1951-9-2 714 Sonoma marshy opening s Upper Marsh (near Forestville); Pitkin Marsh Comment
  UC453112  Salix lasiolepis W. A. Setchell 1931-8-1 26 Sonoma Jenner-by-the-Sea Comment
  UC453113  Salix lasiolepis W. A. Setchell 1931-8-1 27 Sonoma Jenner-by-the-Sea Comment
  UC482061  Salix lasiolepis Baker, Ball, Bracelin, and Crum 1931-5-9 345 Sonoma about 2 km e Bodega Bay (creek bed) Comment
  UC66165  Salix lasiolepis A. A. Heller 1902-3-28 5177 Sonoma Bodega Bay Comment
  CAS-BOT-BC107354  Salix lasiolepis var. bigelovii Alice Eastwood 1915-6-29 4809 Sonoma Bodega Point Comment
  CAS-BOT-BC128320  Salix lasiolepis var. lasiolepis A. A. Heller 1902-8-23 5097 Sonoma Santa Rosa Creek, east of Santa Rosa Comment
  RSA534501  Salix lucida subsp. lasiandra Peter Rubtzoff 1962-5-5 4805 Sonoma Fife Creek Marsh. Comment
  POM219076  Salix melanopsis W. A. Setchell 1931-8-1 s.n. Sonoma Bohemian Grove. Near Monte Rio. Bed of Russian River. Comment
  CAS-BOT-BC126192  Salix scouleriana Ynes Mexia 1933-2-18 s.n. Sonoma Four miles south of Camp Meeker Comment
  CAS-BOT-BC126199  Salix scouleriana Peter Rubtzoff 1951-8-18 627 Sonoma Western branch of the Upper Marsh Comment
  SBBG28810  Salix scouleriana Baker, C. R. Ball, H. Bracelin, Crum 1931-5-9 343 Sonoma 2 km E of Occidental, on Occidental grade Comment
  UC1135087  Salix scouleriana E. Armstrong 1934-3-26 904 Sonoma 1 mi. w. Camp Meeker; Sebastopol Quadrangle 152 Comment
  UC482052  Salix scouleriana Baker, Ball, Bracelin, and Crum 1931-5-9 343 Sonoma 2 km. e. Occidental (on Occidental grade) Comment
  UC482053  Salix scouleriana Baker, Ball, Bracelin, and Crum 1931-5-9 343 Sonoma 2 km. e. Occidental (on Occidental grade) 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-BC128901  Salix sitchensis W. A. Setchell 1934-7-10 7 Sonoma Kru's Ranch, Coast Highway above Fort Ross Comment
  CAS-BOT-BC128949  Salix sitchensis W. A. Setchell 1933-5-6 s.n. Sonoma Roadside between monte Rio and Camp Meeker Comment
  UC498692  Salix sitchensis Annetta Carter 1933-2-19 255 Sonoma 150 yds. from ocean beside creek Fort Ross 3 Comment
  UC524786  Salix sitchensis W. A. Setchell 1934-7-10 4 Sonoma Coast Hwy. above Fort Ross (Kru's Ranch) Comment
  UC726375  Salix sitchensis A. A. Heller 1900-3-12 5044 Sonoma e. flank Mt. Hood (Sonoma Creek); , Sonoma Creek Comment
Read comments
May 1 2014
  UC1124722  Salvia columbariae H. S. Yates 1934-4-22 3862 Sonoma near Petrified Forest; Calistoga Quad. 243 Comment
  CDA10856  Salvia sonomensis G. F. Hrusa, G. L. Stebbins 1994-4-8 11732 Sonoma North Coast Biodiversity Arena; Cavedale Edaphic Island, 2.5 m. E of Hwy 12. Mayacmas Mts. Comment
  CAS-BOT-BC225215  Salvia sonomensis Wayne Roderick 1967-4-28 s.n. Sonoma Cavedale Road n. of Sonoma 457 Comment
  UC480611  Sanicula bipinnatifida Carl Meyer 1928-3-3 317 Sonoma Santa Rosa Comment
  JEPS128263  Sanicula laciniata Roger Raiche 2000-4-15 035 .00 Sonoma The Cedars. Laton Camp. Lower Russian River, Big Austin Creek watershed. Comment
  UCD114698  Sanicula tuberosa Christopher Mallek 2008-1 HC12- 13 Sonoma Hooker Canyon. 590 Comment
  CAS-BOT-BC441180  Saxifraga mertensiana J. Burtt Davy 1896-3-14 1667 Sonoma Adobe Canon Comment
  RSA474863  Saxifraga mertensiana R. C. Bacigalupi 1948-3-6 2854 Sonoma 1 mile W of Skaggs Springs. Comment
  UCSB2698  Saxifraga mertensiana Keator, Glenn 1959-4-1 Sonoma 8.1 miles east of Digger Indian Reservation on Stewart Point Geyserville highway Comment
  CAS-BOT-BC283140  Schedonorus arundinaceus G. De Nevers 1982-4-30 1966 Sonoma Philli's Lake, Pepperwood Ranch Comment
  CAS-BOT-BC283143  Schedonorus arundinaceus G. De Nevers 1981-6-20 1633 Sonoma At the Dentist's Lake, Pepperwood Ranch Comment
  CAS-BOT-BC111436  Schoenoplectus acutus var. occidentalis Peter Rubtzoff 1959-6-20 4166 Sonoma Willow Creek Marsh. Open, wet, gravelly bank of Willow Creek. Comment
  CAS-BOT-BC111633  Schoenoplectus californicus Peter Rubtzoff 1955-7-30 1995 Sonoma Bennett Mtn. Lake. Comment
  RSA540068  Schoenoplectus californicus Peter Rubtzoff 1955-8-6 2020 Sonoma Bodega Harbor Marsh Comment
  RSA0019147  Schoenoplectus maritimus Peter Rubtzoff, Nancy Harrison 1974-9-7 7873 Sonoma Hinebaugh Creek in Rohnert Park, creek bed west of Commerce Blvd. crossing. 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-BC111842  Schoenoplectus tabernaemontani Peter Rubtzoff 1955-9-10 2135 Sonoma East Guernewood, near Guerneville. On a Russian River island. Comment
  UC1254996  Scirpus cernuus Alan A. Beetle 1941-7-8 2854 Sonoma coastal bluffs 5 mi n Steward Point; n of Steward Point Comment
  CAS-BOT-BC111103  Scirpus microcarpus A. A. Heller 1902-6-24 5746 Sonoma Near Burke's Sanitarium Comment
  CAS-BOT-BC111110  Scirpus microcarpus Gregory Clark de Nevers 1981-6-20 1627 Sonoma In Mark West Creek, Pepperwood Ranch. Comment
  SEINET12050503  Scoliopus bigelovii F. H. Utech 1988-1 88 -231 Sonoma 3 mi S of Ft. Ross Historic Site & junction with Ft. Ross Road on CA 1, mile marker 29.90 100 Comment
  SEINET12050504  Scoliopus bigelovii F. H. Utech 1988-1 88 -215 Sonoma Salt Point, along CA 1 between Jenner & Stewart's Point, mile marker 38.39 75 Comment
  UCR248718  Scrophularia californica Peter Rubtzoff 1962-10-23 5122 Sonoma Laguna de Santa Rosa, east of Graton, between Occidental and Guerneville roads 37 Comment
  UC76189  Scutellaria californica Milo S. Baker 1901-1 591 Sonoma Santa Rosa Comment
  RSA0056489  Sedella pumila Greg de Nevers 1997-4-16 10941 Sonoma Moon Mountain Road Area burned Sept. 1996. Comment
  CAS-BOT-BC63937  Sedum spathulifolium J. Clausen 1935-5-23 1076 Sonoma 1.2 mi S of Petrified Forest Comment
  RSA0074774  Sedum spathulifolium Christopher Davidson 1977-6-17 5884 Sonoma Coast Hwy 1, ca. 3 miles N of Jenner. Comment
  SEINET194264 Image available Selaginella A. A. Heller 1902-4-2 Sonoma On the Calistoga Road 10 mi from Santa Rosa Comment
  UC371002  Selaginella wallacei Michener and Bioletti 1893-12-25 Sonoma Adobe Canyon Comment
  UC485215  Senecio aronicoides H. P. Chandler 1907-4-21 7528 Sonoma road from Glen Ellen to Oakville Comment
  UCR45083  Senecio greenei L. F. LaPre 1986-5-31 s.n. Sonoma Socrates Mine, c. 9 mi ENE of Geyserville 976 Comment
  UC1612986  Senecio minimus M. Rockwood and L. Esposito 1994-7-27 612 Sonoma 1.5 mi nw Bodega; Rancho Bodega 42 Comment
  UCD148313  Senecio minimus Peter Rubtzoff 1951-8-25 668 Sonoma Forested hills southeast of Guerneville. Comment
  CAS-BOT-BC173681  Senecio vulgaris Peter Rubtzoff 1956-9-14 2896 Sonoma Vacation Beach, near Guerneville, along Russian River. Comment
  CAS-BOT-BC364680  Senecio vulgaris Walter Knight; Irja Knight 1963-10-14 414 Sonoma Blomquist Ranch, Penngrove Comment
  NY64476  Sequoia sempervirens R. R. Wilson 1939-7-25 438 Sonoma Ft. Ross, one-half mile from ocean Comment
  JEPS128164  Sesbania punicea Eric Wrubel 2012-6-30 101 Sonoma Santa Rosa. Olivet Road at the intersection with Viking Road. Comment
  CAS-BOT-BC376434  Setaria Greg de Nevers 1996-9-22 10877 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. In Mark West Creek at Leslie Creek. 400 Comment
  CAS-BOT-BC243536  Setaria faberi David L. Morgan 1958-4-6 s.n. Sonoma Highway 101, Sonoma-Marin County Line Comment
  UCR250224  Setaria parviflora Peter Warner 2013-8-12 295 Sonoma Green Valley Road, 0.15 mi east of junction with Bones and Maddocks Roads 87 Comment
  CAS-BOT-BC243605  Setaria parviflora Burbank 1926-1-1 s.n. Sonoma Luther Burrant Garden Comment
Read comments
Sep 24 2017
  CHSC107301  Setaria pumila D. G. Kelch; Troy McGregor 2010-8-22 10 .337 Sonoma Geyser Peak Rd. In roadside ditch. 1646 Comment
  CAS-BOT-BC240278  Setaria viridis G. DeNevers 1981-6-20 1620 Sonoma Pepperwood Ranch. In Mark West Creek Comment
  UC871431 Image available Sidalcea calycosa Marcus E. Jones, A. M. 1882-7-18 Sonoma Duncan's Mills Comment
  CAS-BOT-BC187888  Sidalcea calycosa subsp. rhizomata Peter Rubtzoff 1951-8-4 569 Sonoma Southern half of Lower Marsh, Pitkin Marsh, near Forestville Comment
  JEPS50080  Sidalcea diploscypha W. L. Jepson 1921-6-2 9295 Sonoma Healdsburg Comment
  SEINET11994390  Sidalcea diploscypha F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -162 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd 120 Comment
  UC108867  Sidalcea diploscypha Katharine Brandegee 1905-6-8 Sonoma bet Santa Rosa Sevastopol; bet Santa Rosa and Sevastopol Comment
  SEINET11971663  Sidalcea hartwegii L. S. Rose 1940-1 40372 Sonoma Sonoma 30 Comment
  UCD169969  Sidalcea hickmanii subsp. viridis L. Coats 1983-5-17 23 Sonoma Highway 1, 4.3 miles north of entrance to Salt Point State Park. 21 Comment
  CAS-BOT-BC205564  Sidalcea malachroides L. R. Abrams 1920-7-3 7604 Sonoma Gualala River near Mendocino-Sonoma Co. Line Comment
  RSA87995  Sidalcea malviflora C. L. Hitchcock 1952-6-4 19584 Sonoma 1 mile N. of Ft Ross. Comment
  UCD116801  Sidalcea malviflora Marla A. Shapiro 1976-5-29 420 Sonoma 5 miles north of Bodega Bay on Highway 1 at Coleman Beach. Comment
  JEPS67240  Sidalcea malviflora subsp. laciniata W. L. Jepson 1921-5-6 9192 Sonoma Sonoma Valley 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
  RSA87714  Sidalcea malviflora subsp. laciniata C. L. Hitchcock 1952-6-4 19582 Sonoma About 2 miles east of Sebastopol Road to Petaluma, Comment
  SEINET7042576  Sidalcea malviflora subsp. laciniata A. G. Vestal 1947-5-16 s.n. Sonoma Ca. 6.7 miles east of Windsor. Jimtown quadrangle UTM Zone 10, 519948mE, 4276242mN. Comment
  POM61854  Sidalcea malviflora subsp. malviflora A. A. Heller, H. E. Brown 1902-4-9 9190 Sonoma Three Miles South of Healdsburg. Comment
  CAS-BOT-BC213171  Sidalcea oregana subsp. valida C. L. Hitchcock 1952-6-28 196368 Sonoma Kenwood Marsh about 1/4 mile west of Kenwood. Comment
  CAS-BOT-BC540832  Sidalcea oregana subsp. valida Peter Rubtzoff; Rimo Bacigalupi 1979-8-6 9305 Sonoma Knights Valley. South side of Bavarian Lion Company ranch road, 1.25-1.5 miles west of its junction with Franz Valley Road. Comment
  CAS-BOT-BC361349  Silene coniflora Greg de Nevers 1997-4-24 10961 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  UC1541419  Silene gallica H. E. and S. T. Parks 1930-5-10 846 Sonoma Knights Valley 152 Comment
  RSA41908  Silene gallica H. C. Cantelow 1936-5-3 1244 Sonoma 3 miles S of El Verano. Comment
  CAS-BOT-BC389221  Silene laciniata subsp. californica Nora Pettibone 1894-5-15 s.n. Sonoma Cazadero Comment
  UC905113  Silene multinervia Milo S. Baker 1947-4-22 11689 Sonoma near Kenwood (on Macartney Ranch); w slope Hood Mt., near Kenwood, Macartney Ranch 182 Comment
  UC604116  Silene scouleri subsp. grandis Baker 1938-6-6 9026 Sonoma top of Bodega Rock Bodega Bay; North Bay Counties, , top of Bodega Rock Comment
  UC8454  Silene scouleri subsp. grandis Alice Eastwood 1900-7-4 Sonoma Bodega Point; ; Bodega Point, Sonoma Co. Comment
  SD38223  Silybum marianum Edith A. Purer 1932-7-24 Sonoma Near Bodega Bay Comment
  CAS-BOT-BC75327  Sisymbrium officinale Clare R. Wheeler 1978-3-30 139 Sonoma Pine Mountain Road, 4 miles northeast of Cloverdale. 548 Comment
  UCD166206  Sisymbrium officinale Peter Rubtzoff 1969-8-29 6169 Sonoma Willow Creek Marsh. Comment
  UCD160117  Sisyrinchium James A. Neilson Jr. 1973-6-3 3040 Sonoma Mayacmas Mountains. The Geysers. Site I. (Location and elevation of Site I estimated from Neilson 2994 which has Township/Range data and says that Site I is in Geyser Canyon. Coordinates estimated by label maker.) 853 Comment
  CHSC34405  Sisyrinchium bellum Jeffrey D. Prouty 1979-4-11 216 Sonoma CA. 7 mi. n of Santa Rosa. Mark West Springs Road, ca. 300 yards n of juct. with Michelle Way. 137 Comment
  CHSC78104  Sisyrinchium bellum David Cheetham 1998-6-26 27 Sonoma 125-150 ft. elevation. I street extension. 38 Comment
  SBBG1135  Sisyrinchium bellum H. and M. Dearing 1939-5-14 3371 Sonoma Bodega State Park [Bodega Dunes State Beach] Comment
  UC1032511  Sisyrinchium bellum E. Armstrong 1934-3-26 940 Sonoma 3 mi nw of Camp Meeker 91 Comment
  UC496429  Sisyrinchium bellum Merle Randall 1930-6-10 Sonoma Shore road from Jenner to Fort Ross 91 Comment
  SEINET7042393  Sisyrinchium bellum A. G. Vestal 1947-5-12 s.n. Sonoma 1 mile east of Occidental. Camp Meeker quadrangle UTM Zone 10, 505500mE, 4251757mN. Comment
  UC844172  Smilacina racemosa Mrs. E. C. Sutliff Aug. 1920 Sonoma near Annapolis Comment
  CAS-BOT-BC164408  Solanum Peter Rubtzoff 1959-9-19 4278 Sonoma Vacation Beach, near Guerneville. Comment
  CAS-BOT-BC164707  Solanum Peter Rubtzoff; Nancy Harrison; Ruth Hass; Charles Quibell 1974-8-31 7845 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC166713  Solanum Peter Rubtzoff 1958-8-17 3889 Sonoma Laguna de Santa Rosa, northeast of Graton (near Guerneville Road). Comment
  CAS-BOT-BC166967  Solanum Peter Rubtzoff 1956-9-16 2930 Sonoma Vacation Beach, near Guerneville. Comment
  UCD167434  Solanum Peter Rubtzoff 1958-9-20 3998 Sonoma Laguna de Santa Rosa NE of Graton (0.5 mi. N Guerneville Rd). Comment
  RSA0030765  Solanum Peter Rubtzoff 1958-8-17 3889 Sonoma Laguna de Santa Rosa, northeast of Graton (near Guerneville Road). Comment
  UCR281902  Solanum americanum Peter Rubtzoff 1965-9-11 5649 Sonoma North Coast Ranges, Russian River margin at Forest Hills, 5.5 miles east of Guerneville 9 Comment
  UCD126816  Solanum americanum C. B. Heiser; D. Heiser 1946-4-14 s.n. Sonoma Bodega Bay. Comment
  UC914097  Solanum physalifolium var. nitidibaccatum Herbert A. Thomas 1935-11-23 Sonoma Burbank Farm Comment
  UCR255057  Solidago californica Greg de Nevers 1989-9-15 9104 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC365585  Solidago elongata Peter Rubtzoff 1951-9-16 750 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh Comment
  CAS-BOT-BC365655  Solidago spathulata Mary P. Wells 1972-8-4 s.n. Sonoma The Sea Ranch Comment
  CAS-BOT-BC365261  Solidago velutina subsp. californica Alice Eastwood 1915-6-29 4804 Sonoma Bodega Point Comment
  CAS-BOT-BC365270  Solidago velutina subsp. californica Walter Knight; Irja Knight; Tiffany Knight; S. W. Edwards 1985-7-21 6357 Sonoma Pine Flat Road 304 Comment
  CAS-BOT-BC365257  Solidago velutina subsp. californica unspecified 1898-8-1 s.n. Sonoma San Raphael [Rafael] Comment
  CAS-BOT-BC365264  Solidago velutina subsp. californica Mary P. Wells 1983-8-4 182 Sonoma North of Parking Lot south of Duncan's Point Comment
  LA203961  Solidago velutina subsp. californica M. S. Baker; 1934-6-1 7701 Sonoma About 1 mi. E of Gravenstein Hwy along Road from Moleno towards Santa Rosa Comment
  CAS-BOT-BC173668  Soliva sessilis Peter Rubtzoff; Walter Lennon 1974-5-11 7397 Sonoma Laguna de Santa Rosa, ca. 1 mile east-southeast of Sebastopol. Comment
  CAS-BOT-BC173844  Soliva sessilis Peter Rubtzoff 1969-6-22 6101 Sonoma Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC365957  Soliva sessilis G. DeNevers 1981-4-30 888 Sonoma Pepperwood Ranch. At Pippindale Garden. Also at Garrison House Comment
  CAS-BOT-BC365964  Soliva sessilis John Thomas Howell; Catherine Best; Wilma Follette; Gordon True 1981-5-14 54023 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-BC365970  Soliva sessilis D. E. Breedlove 1983-4-11 58689 Sonoma Pepperwood Ranch W of Knights Valley Comment
  CDA8805  Soliva sessilis G. D. Barbe 1982-5-27 3618 Sonoma 3.6 miles east of Stewarts Point (Highway 1) on Scaggs Spring Road. Comment
  UCD148422  Sonchus Peter Rubtzoff 1960-5-18 4391 Sonoma Bodega Head Marsh. Comment
  CAS-BOT-BC374526  Sonchus asper John Thomas Howell 1932-9-18 10776 Sonoma Kenwood Marsh Comment
  UCD133996  Sonchus asper subsp. asper Frederica Bowcutt; Jolie Henricks and Jeff Kennedy 1994-5-1 1772 Sonoma Sugarloaf Ridge State ParkAbout 40 air miles N of San Francisco, 11 air miles E of Santa Rosa, 1.5 air miles NE of Kenwood and 18 air miles NW of Napa. In Adobe Canyon N of Sugarloaf Ridge along the S edge of Sonoma Creek at the parking lot/trail head of Goodspeed Trail. 198 Comment
  CAS-BOT-BC235357  Sorghum X drummondii David L. Morgan 1956-7-29 s.n. Sonoma At junction of Petaluma-Vy. Ford Rd. and Smith Rd. Comment
  CAS-BOT-BC236592  Sorghum halepense Walter Knight; Irja Knight 1963-9-29 227 Sonoma Near Lindberg Lane on Lakeville Highway, Petaluma Comment
  JEPS32223  Sparganium eurycarpum var. eurycarpum F. T. Bioletti Jun 1893 Sonoma Kenwood Comment
  UCD37286  Spartina foliosa Beecher Crampton 1958-12-30 5140 Sonoma Sonoma County, 10 miles west of city of Vallejo, along Sonoma Creek. Comment
  RSA477990  Spergula arvensis E. A. Purer 1932-7-21 16084 Sonoma Bodega Bay. Comment
  CAS-BOT-BC390516  Spergularia macrotheca var. macrotheca Alice Eastwood 1915-6-29 4796 Sonoma Bodega Point Comment
  UC1222182  Spiranthes porrifolia Joseph P. Tracy 1950-5-24 18687 B Sonoma In field where the Knights Valley Road enters Alexander Valley (and leaves Muyacamas Creek). Comment
  CAS-BOT-BC534886  Spirodela polyrhiza Peter Rubtzoff 1951-9-2 704 Sonoma Northern half of Lower Marsh, in the open, in water Comment
  CAS-BOT-BC258358  Stachys J. Penalosa 1961-5-24 1585 Sonoma Upper Stemple Creek Marsh Comment
  JEPS87220  Stachys ajugoides Jack and Betty Guggolz 1992-6-22 1320 Sonoma cattle pasture se Knowles Corner 36 Comment
  UC1299470  Stachys albens Freed W. Hoffman 1946-9-26 580 Sonoma Layton Mine North Coast Ranges, Austin Creek Comment
  UCD125558  Stachys albens Frederica Bowcutt 1997-7-18 2172 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Just south of midpoint between Mt. Hood and Red Mountain. Road on ridge West of Bear Ck. 365 Comment
  UCD125776  Stachys chamissonis Mary M. Hektner 1974-6-3 17 -A Sonoma Sea Ranch. Near State Highway 1. Unit 24 Owners' Map. Comment
  UCD160823  Stachys rigida James A. Neilson Jr.; Teresa A. Sholars 1975-6-20 3371 Sonoma Section 10, the Geysers. (Exact location unknown. Elevation and coordinates estimated by label maker.) 388 Comment
  RSA177954  Stachys rigida subsp. quercetorum Robert F. Thorne 1965-4-20 34324 Sonoma Parker Hill Road ca. 2 1/2 miles N of Santa Rosa and 1 mile N of Sonoma County hospital. 107 Comment
  SEINET12331121  Stachys rigida subsp. quercetorum F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -153 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd 80 Comment
  UCD160883  Stachys rigida var. quercetorum James A. Neilson Jr.; Teresa A. Sholars 1975-6-26 3279 Sonoma Mayacmas Mountains, adjacent to Caldwell Pines, ca. 3 1/2 miles west of Glenbrook and Bottlerock Road, northeast Sonoma County. (Elevation and coordinates estimated by label maker.) 975 Comment
  SEINET12326113  Stachys rigida var. quercetorum W. Knight, Knight, I. 1983-1 4718 Sonoma Sonoma Montain Road #2 along creek near Wake Robin Lodge on old Jack London property Comment
  CAS-BOT-BC361391  Stachys stricta Greg de Nevers 1993-8-8 10487 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa at Upper Skovie Spring (below Rd. T) 400 Comment
  CAS-BOT-BC320563  Stellaria Peter Rubtzoff 1970-10-29 6418 Sonoma Dune pond near U.C. Bodega Marine Laboratory. Comment
  RSA800605  Stellaria Peter Rubtzoff 1967-8-28 5866 Sonoma SE of Lower Salmon Creek Marsh. Comment
  CAS-BOT-BC397765  Stellaria media Alice S. M. McKenzie 1981-2-23 22 Sonoma Coast between Russian and Gualala Rivers; Calif. State Hwy 1 at Kolmer Gulch. Comment
  SACT002404  Stipa pulchra M. Wiesendanger 1927-5-5 Sonoma Comment
  UCD167312  Streptanthus James Neilson 1977-6-7 3904 Sonoma Mayacmas Mountains, between Lunar Point and crest of Mayacmas. (Location information obtained from Neilson 3911 which indicated that Lunar Point is west of Locke Cabin. Exact location unknown. Coordinates estimated by label maker.) Comment
  UC956501  Streptanthus barbiger Freed W. Hoffman 1948-6-16 2341 Sonoma Dorr's Cabin North Coast Ranges, upper East Austin Creek Comment
  UC963921  Streptanthus barbiger Milo S. Baker 1947-5-30 11775 Sonoma along grade ca 2 mi ne Occidental; North Bay Counties, Harrison Grade Comment
  UC1292753  Streptanthus glandulosus Freed W. Hoffman 1947-9-5 1085 Sonoma Dutch Bill Creek near Camp Meeker Comment
  UC1292754  Streptanthus glandulosus Freed W. Hoffman 1948-5-24 2337 Sonoma Austin Creek road just above Great Easten Quicksilver Mine North Coast Ranges Comment
  SEINET10947471 Image available Streptanthus glandulosus Fred W. Hoffman 1948-7-9 Hoffman 2311 Sonoma Serpentine soil 6.9 miles north of California-Oregon line on Happy Camp-O'Brien road, Josephine County Comment
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May 8 2018
  UC10912  Streptanthus glandulosus subsp. secundus Edw. L. Greene 1894-6-17 Sonoma Mt. St. Helena Comment
  UC1292748  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1950-5-24 3361 Sonoma trail from Gray Creek to the Island North Coast Ranges (headwaters of East Austin Creek) Comment
  UC427868  Streptanthus glandulosus subsp. secundus H. E. and S. T. Parks 1930-5-10 835 Sonoma hillsides in w end of valley Knights Valley Comment
  CAS-BOT-BC87295  Streptanthus glandulosus subsp. sonomensis Peter Rubtzoff 1952-6-3 1141 Sonoma South slopes of Fitch Mountain, near Healdsburg. Comment
  SEINET11990984  Streptanthus glandulosus var. secundus R. Raiche, Edwards, S.; Knight, W.; Knight, I. 1983-1 4756 Sonoma The Cedars, near Cazadero on Twitchell Ranch 274 Comment
  UCD167024  Streptanthus morrisonii James Neilson 1981-7-1 4046 Sonoma Mayacmas Mountains. Abril Ridge. (Abril Ridge assumed to be on Abril property which, based on other Neilson collections, includes T11N R9W Sect. 15. Exact location unknown, coordinates estimated by label maker.) Comment
  UCD167337  Streptanthus morrisonii James A. Neilson Jr. 1980-6-16 3983 Sonoma Mayacmas Mountains. On unnamed tributary of Little Sulphur Creek above Healdsburg-Geysers Road. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UCD167365  Streptanthus morrisonii James Neilson Date Unknown 4059 Sonoma Hillside due east of Layton Mines. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UCD168068  Streptanthus morrisonii James Neilson 1981-5-28 4032 Sonoma Mayacmas Mountains, Shell Well Site B. (Exact location unknown. Coordinates estimated by label maker. Shell Well Site B 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
  CAS-BOT-BC267237  Stuckenia filiformis Peter H. Raven 1955-3-20 s.n. Sonoma 1 mile W of Schelville Comment
  CAS-BOT-BC258005  Symphoricarpos Peter Rubtzoff 1966-6-5 5754 Sonoma Laguna de Santa Rosa east of Graton, between Occidental and Guerneville roads. Comment
  RSA799983  Symphoricarpos Peter Rubtzoff 1961-9-6 4735 Sonoma Laguna de Santa Rosa area northeast of Graton. Comment
  CAS-BOT-BC540817  Symphoricarpos Peter Rubtzoff 1961-9-6 4735 Sonoma Laguna de Santa Rosa area northeast of Graton. Comment
  CAS-BOT-BC269628  Symphoricarpos albus var. laevigatus Barbara Stuart Dows 1907-7-12 s.n. Sonoma Sebastopol Comment
  CAS-BOT-BC269634  Symphoricarpos albus var. laevigatus Marcus E. Jones 1931-7-5 29056 Sonoma West of Cloverdale Comment
  UC1010374  Symphoricarpos mollis Milo S. Baker Jun 1928 3168 b Sonoma e side Los Guilicos Valley (road to Youngman's) Comment
  CAS-BOT-BC99377  Symphyotrichum subspicatum Peter Rubtzoff 1951-9-15 768 Sonoma Lower part of the Upper Marsh; Pitkin Marsh, near Forestville Comment
  UC76083  Synthyris reniformis Milo S. Baker 1898-4-4 Sonoma between Cazadero and Sea View Comment
  UC1023608  Taeniatherum caput-medusae Virginia Bufford 1936-5-21 349 Sonoma Geyser Road 4 mi from Geyserville; Geyser Road Comment
  CAS-BOT-BC376985  Taraxacum officinale Greg de Nevers 1981-4-1 s.n. Sonoma Pepperwood Ranch Comment
  CAS-BOT-BC371466  Tellima grandiflora Greg de Nevers 1993-5-16 10446 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa along Franz Creek, E of 3865 Franz Valley Rd 400 Comment
  CAS-BOT-BC447460  Tellima grandiflora Greg de Nevers 1993-5-16 10446 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Along Franz Creek east 3865 Franz Valley Road. 457 Comment
  CHSC26306  Tellima grandiflora P. Kunst 1977-4-12 23 Sonoma Ca. 4 yd n of Coleman Valley Rd and 3 yd s of Coleman Valley Creek, 2.5 mi w of Occidental. 219 Comment
  OBI9743  Tellima grandiflora Lewis S. Rose 1962-4-18 62023 Sonoma 1 mi NW of Freestone 76 Comment
  UCD102952  Tellima grandiflora Linda A. Bell 1975-5-18 155 Sonoma State Hwy 116, 3 miles west of Guernville. 21 Comment
  CAS-BOT-BC399887  Thalictrum polycarpum Greg de Nevers 1996-4-21 10796 A Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road 487 Comment
  RSA52687  Thermopsis californica var. californica I. L. Wiggins 1949-4-30 12058 Sonoma Roadside 6.8 miles east of Santa Rosa on road to Calistoga Comment
  SEINET7096767  Thermopsis macrophylla var. venosa A. G. Vestal 1955-5-7 s.n. Sonoma On Jonive Road. Ca 4.6 miles west of Sebastipol. NAD27,38? deg. 22' 48ao, -122?_ 54' 01ao (converted to WGS84 decimal degrees) UTM Zone 10, 508701mE, 4247764mN. Comment
  CAS-BOT-BC66827  Thysanocarpus curvipes Ira L. Wiggins 1949-4-30 12069 A Sonoma 4 miles west of Calistoga. Comment
  CAS-BOT-BC66814  Thysanocarpus curvipes Karl H. Rechinger; J. T. Howell 1953-4-12 s.n. Sonoma Hills north of Sonoma. Comment
  CAS-BOT-BC67340  Thysanocarpus radians David D. Keck 1931-4-2 998 Sonoma Boyes Springs. 30 Comment
  CAS-BOT-BC447595  Tiarella trifoliata subsp. unifoliata Catherine Best 1980-7-1 s.n. Sonoma Growing on the bank of Dutch Bill Creek about 1 mile north of Occidental Comment
  UC764989  Tiarella trifoliata var. unifoliata R. F. Hoover 1941-5-14 5074 Sonoma on road to Camp Meeker 3 mi s Monte Rio Comment
  CAS-BOT-BC447589  Tiarella trifoliata var. unifoliata L. R. Abrams 1920-7-3 7599 Sonoma Gualala River Comment
  OBI48846  Tonella tenella Michener & Bioletti, Bioletti April 1893 s.n. Sonoma Adobe canon Comment
  UCR256117  Torilis arvensis Greg de Nevers 1996-6-3 10825 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC169258  Toxicodendron diversilobum Volney Rattan 1877-6-22 s.n. Sonoma Healdsburg Comment
  UCD139866  Toxicoscordion fremontii L. Whitney 1932-4-1 s.n. Sonoma Vine Hill, Santa Rosa. Comment
  CAS-BOT-BC323058  Tracyina rostrata John Thomas Howell 1967-6-17 42599 Sonoma On Arthur E. Cooley Ranch at confluence of Galloway adn Dry Creeks, northern Sonoma Co. 182 Comment
  CDA8947  Tracyina rostrata J. T. Howell 1967-6-17 42599 Sonoma Near ranch house on Arthur E. Cooley ranch at forks of Dry & Galloway Creeks. Northern Sonoma County. Comment
  SD58366  Trichostema laxum Harry K. Roberts 1961-6-20 Sonoma Roadside and open areas at summit of Harrison Grade, north and east of Occidental. Comment
  UC496403  Trientalis latifolia Merle Randall 1930-6-11 Sonoma near Cazadero Comment
  POM128178  Trientalis latifolia H. P. Chandler 1907-5-19 7571 Sonoma White Sulphur Spring, St Helena Comment
  RSA784994  Trifolium Peter Rubtzoff 1974-5-25 7464 Sonoma Upper Green Valley Marsh Comment
  CAS-BOT-BC173624  Trifolium Peter Rubtzoff; Walter Lennon 1974-5-11 7393 Sonoma Laguna de Santa Rosa, ca. 1 mile east-southeast of Sebastopol. 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
  RSA784987  Trifolium Peter Rubtzoff 1974-5-11 7403 Sonoma Laguna de Santa Rosa east of Sebastopol (south of Hwy 12 crossing) Comment
  RSA784993  Trifolium Peter Rubtzoff 1974-5-19 7440 Sonoma Laguna de Santa Rosa, E of Graton, between Occidental and Guerneville roads. Comment
  CAS-BOT-BC217059  Trifolium amoenum J. W. Congdon 1880-5-1 s.n. Sonoma Santa Rosa Comment
  UC555446  Trifolium barbigerum H. L. Mason 1931-4-12 5843 Sonoma 1.5 mi w Fulton Comment
  UCR119035  Trifolium barbigerum var. andrewsii Beecher Crampton 1955-4-5 2416 Sonoma Santa Rosa Area, 2.5 miles south of Windsor, western boundary of Sonoma County Airport, along Mark West Road 91 Comment
  CDA36828  Trifolium ciliolatum CDFA Staff 1995-5-23 s.n. Sonoma Sugarloaf Ridge State Park; near junction of Meadow, Hillside, and Gray Pine Trails, east of bridge across Sonoma Creek. 0 Comment
  POM21436  Trifolium dichotomum A. A. Heller, H. E. Brown, A. H. Heller 1902-4-14 5290 Sonoma Near Mark West Springs Comment
  UCD38290  Trifolium dubium Beecher Crampton 1954-4-26 1791 Sonoma 9 miles SE of Geyserville, Highway 128, Alexander Valley. Comment
  CAS-BOT-BC371475  Trifolium fragiferum Greg de Nevers 1995-7-19 10761 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa Trapper's Cabin 400 Comment
  RSA0079933  Trifolium fragiferum Greg de Nevers 1997-7-24 11071 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. At Double Ponds and Turtle Pond. 100 Comment
  UCD108895  Trifolium fragiferum Frederica Bowcutt 1997-7-18 2186 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Just south of midpoint between Mt. Hood and Red Mountain. Road on ridge West of Bear Ck. 365 Comment
  CAS-BOT-BC366944  Trifolium fragiferum Greg de Nevers 1995-6-16 10755 Sonoma Knights Valley Marsh on Bavarian Lion Ranch 1036 Comment
  UCD109129  Trifolium grayi Beecher Crampton 1955-4-5 2401 Sonoma 2 miles W of Fulton, Woolsey Road. Comment
  UCD143709  Trifolium grayi Beecher Crampton 1955-4-5 2410 Sonoma 2 miles north of Trenton, Mark West Station Road. Comment
  CDA36945  Trifolium hirtum CDFA Staff 1995-5-23 s.n. Sonoma Sugarloaf Ridge State Park; near junction of Meadow, Hillside, and Gray Pine Trails, east of bridge across Sonoma Creek. 0 Comment
  UCR218645  Trifolium hirtum George K. Helmkamp, E. A. Helmkamp 2010-6-4 16210 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
  UCSB31785  Trifolium hybridum Townsend, J. 1977-5-29 Sonoma West side Russian River about 1 mile south of Guerneville 335 Comment
  UCD109139  Trifolium hydrophilum P. G. Connors 1996-5-6 364 Sonoma 8 km S of Sonoma, W of Sonoma Creek, Viansa Wetlands. Comment
  UC1096834  Trifolium incarnatum Milo S. Baker May 1957 13175 Sonoma near S. F. State College (n Santa Rosa, Hwy 101) Comment
  CAS-BOT-BC368063  Trifolium microcephalum Greg de Nevers 1998-5-26 11261 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Near Murry Gate 400 Comment
  UC450035  Trifolium microdon Katharine Brandegee 1905-6-1 Sonoma Santa Rosa Comment
  UC631590  Trifolium microdon P. B. Kennedy 1915-5-31 Sonoma along trails; Del Mar Comment
  UCD160308  Trifolium obtusiflorum James A. Neilson Jr. 1975-5-23 3202 Sonoma Truit Creek on Big Sulphur Creek. Abril property. (Elevation and coordinates estimated by label maker.) 388 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
  CAS-BOT-BC474559  Trifolium variegatum Ayzik Solomeshch 2009-5-13 s.n. Sonoma West edge of city of Santa Rosa, S of Hwy 12 and just E of S Wright Rd. San Jones wetland, sampling pool #1 31 Comment
  UCSC005256  Trifolium variegatum Randall Morgan 1995-5-18 2618 Sonoma Santa Rosa, Vernal field at Stony Point Road (Across from Yuba Drive) Comment
  JEPS66095  Trifolium variegatum var. melananthum F. T. Bioletti 1893-5-26 Sonoma South Los Guilicos Comment
  UC16790  Trifolium variegatum var. melananthum H. N. Bolander Apr 1864 3881 Sonoma Mark West Creek Coast Ranges Comment
  JEPS117130  Trifolium variegatum var. variegatum Peter Warner 2010-5-6 139 Sonoma Annadel State Park, in upland vernal pool ~250 m N of Canyon Trail, ~220 m W of Spring Creek, just S of old rock wall Comment
  POM21426  Trifolium variegatum var. variegatum A. A. Heller, H. E. Brown, A. H. Heller 1902-4-22 5341 Sonoma Bet Santa Rosa and Agua Caliente Comment
  UC165605  Trifolium willdenovii Milo S. Baker 1898-4 729 Sonoma Santa Rosa Creek canyon Comment
  HSC15175  Trifolium willdenovii S. N. Wiemeyer 1962-4-13 13 Sonoma 2.1 mi. N of Jct. of Calistoga Rd. and Hwy. 12 274 Comment
  RSA66920  Trifolium willdenovii E. K. Balls 1951-5-3 16403 Sonoma Ca. 1 mi. e. from Petrified Forest, road to Calistoga 610 Comment
  RSA216157  Triglochin maritima Peter Rubtzoff 1955-8-6 2023 Sonoma Lower Salmon Creek Marsh Comment
  UCD151245  Trillium chloropetalum James A. Neilson Jr. 1974-4-24 2729 Sonoma Mayacmas Mountains, upper Squaw Creek. (Elevation estimated using Google Earth by label maker.) 883 Comment
  UCD139914  Trillium ovatum Jo Nixon 1951-3-24 7 Sonoma two miles east of Duncan Mills, south bank of Russian River. Comment
  UC1239030  Triphysaria eriantha subsp. eriantha Freed W. Hoffman 1947-4-7 1914 Sonoma near Windsor; North Coast Ranges Comment
  UCR256122  Triphysaria pusilla Greg de Nevers 1996-5-3 10796 C Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road, Santa Rosa 400 Comment
  SD130528  Triphysaria pusilla F. Almeda, G. DeNevers 1981-3-30 4890 Sonoma Pepperwood Ranch, SE facing slopes just west of the Redwood Canyon Comment
  SEINET7067247  Triphysaria versicolor subsp. faucibarbata A. G. Vestal 1947-5-13 s.n. Sonoma About 5 miles north of Fort Ross on Route 1. Coordinate datum: NAD27. Comment
  UC726328  Triphysaria versicolor subsp. faucibarbata A. A. Heller 1940-4-22 15555 Sonoma in a grassy field at Windsor Comment
  UC1334862  Triphysaria versicolor subsp. versicolor L. D. Thurman 1965-5-3 665 Sonoma on State Highway #1, 2 mi n Bodega Bay; n of Bodega Bay Comment
  UC584211  Triphysaria versicolor subsp. versicolor David D. Keck and J. Clausen 1935-6-15 3375 Sonoma 3 mi s Russian River mouth (on slopes overlooking the sea) Comment
  RSA784397  Trisetum canescens Peter Rubtzoff 1971-6-25 6570 Sonoma Intermittent lake off W side of Hwy 1, 0.7 mi SE of Salmon Creek crossing. Comment
  UCD15865  Trisetum canescens Botany 102 Students 1993-3 9 Sonoma Sugarloaf Ridge State Park. About 40 air miles N of San Francisco; about 11 air miles E of Santa Rosa and 2.5 air miles NE of Kenwood. Across road from Goodspeed trailhed pullout. 228 Comment
  CAS-BOT-BC522357  Triteleia hyacinthina Peter Rubtzoff 1957-5-26 3364 Sonoma Occidental Marsh; Sonoma County Marshes Comment
  CAS-BOT-BC522364  Triteleia hyacinthina Peter Rubtzoff 1951-6-9 167 Sonoma Lower part of the Upper Marsh; Pitkin Marsh, near Forestville Comment
  CAS-BOT-BC522370  Triteleia hyacinthina G. DeNevers 1981-5-9 1038 Sonoma Along the road W of the Red Corral; Pepperwood Ranch Comment
  CAS-BOT-BC522373  Triteleia hyacinthina G. DeNevers; S. Kaza 1981-5-7 974 Sonoma 10510 Old Redwood Hwy. 2 miles NW of Windsor exit from 101, vernal pool meadow, vacant lot by Healdsburg Rent-All Comment
  POM221986  Triteleia hyacinthina W. C. Merrill 1895-05 s.n. Sonoma Ross Station [or Marin Co.] Comment
  RSA264776  Triteleia hyacinthina Peter Rubtzoff 1971-6-5 6511 Sonoma 4.25 mi west of Glen Ellen on Bennett Valley Road. Comment
  SEINET7042677  Triteleia hyacinthina A. G. Vestal 1947-5-16 s.n. Sonoma Ca.4.5 miles east of Winsor. Healdsburg quadrangle UTM Zone 10, 519826mE, 4271406mN. Comment
  UC421780  Triteleia laxa Milo S. Baker 1898-6-1 590 Sonoma Cemetery Hills Santa Rosa Comment
  UCD139377  Triteleia laxa Frederica Bowcutt 1994-6-12 1863 Sonoma Sugarloaf Ridge State Park. about 50 air miles north of San Francisco, 10 air miles east of Santa Rosa, 1.5 air miles north of Kenwood, and 18 air mles NW of Napa. Adobe Canyon north of Sonoma Creek, north of Adobe Canyon Road, About 50 yards N. of Pony Gate trail juncture. 432 Comment
  CAS-BOT-BC361283  Turritis glabra Greg de Nevers 1997-4-22 10952 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa Above Bechtel House 400 Comment
  SD134039  Typha angustifolia Peter Rubtzoff 1971-7-9 6592 Sonoma 5 mi. north of Sears Point. Shallow water near margin of pond Comment
  CAS-BOT-BC208026  Ulex europaeus John H. Thomas 1966-3-22 11543 Sonoma on hillsides in the vicinity of Bodega Comment
  NY643593  Ulex europaeus A. A. Heller 1902-3-22 5126 Sonoma West of Sebastopol Comment
  SD69963  Ulex europaeus Darley Howe 1968-5-21 4520 Sonoma 3.7 miles south of Bodega Bay on route 1 Comment
Read comments
Feb 6 2013
  RSA699636  Ulex europaeus Keith E. Hoffmaster 1946-3-9 s.n. Sonoma Roadside, spreading thruoghout a hillside pasture. Near Petaluma. Comment
  CAS-BOT-BC91282  Umbellularia californica Walter Knight; Irja Knight 1963-12-27 476 Sonoma Summit, Pine Flat Road. Comment
  OBI13414  Umbellularia californica Robert F. Hoover 1968-2-23 10894 Sonoma Graton-Occidental road Comment
  POM149110  Umbellularia californica A. A. Heller, H. E. Brown 1902-3-10 5013 Sonoma Hills East of Santa Rosa. Comment
  RSA785729  Umbellularia californica Carrie A. Herd 1982-3-9 13 Sonoma Crane Creek Regional Park Comment
  UCD158805  Uropappus lindleyi James A. Neilson Jr. 1974-3-27 2940 Sonoma Mayacmas Mountains. Big Geysers. (Elevation estimated using topo map by label maker.) 548 Comment
  CAS-BOT-BC403984  Urtica dioica subsp. gracilis Peter Rubtzoff 1962-5-30 4854 Sonoma Freestone Marsh Comment
  UCD111537  Urtica dioica subsp. gracilis P. G. Connors 1991-7-2 191 Sonoma Bodega Head and Dunes. Near Bodega Harbor, on Bodega Head. Comment
  CAS-BOT-BC403979  Urtica dioica subsp. gracilis Peter Rubtzoff 1951-8-26 672 Sonoma Hills south of Guerneville (Neeley Hill area) Comment
  CAS-BOT-BC404223  Urtica dioica subsp. holosericea Peter Rubtzoff 1968-8-24 5934 Sonoma Upper Salmon Creek Marsh Comment
  CAS-BOT-BC404239  Urtica dioica subsp. holosericea Peter Rubtzoff 1954-8-2 1624 Sonoma Duncans Mills Marsh Comment
  CAS-BOT-BC404246  Urtica dioica subsp. holosericea Peter Rubtzoff 1955-8-20 2057 Sonoma Bodega Harbor Marsh Comment
  CAS-BOT-BC404220  Urtica dioica subsp. holosericea Dennis W. Woodland 1968-6-10 1248 Sonoma 4 miles west of Calistoga on the Santa Rosa Road at road junction along wet stream bank 100 feet south of the road where both roads go to Santa Rosa Comment
  UC912416  Vaccinium parvifolium Herbert L. Mason 1928-7-11 4892 Sonoma 2 miles north of Fort Ross Comment
  CAS-BOT-BC76165  Vancouveria planipetala J. W. Congdon 1892-5-30 s.n. Sonoma Cazadero. Comment
  SD88335  Vancouveria planipetala Darley F. Howe 1972-5-1 Sonoma Duncan Mills Pond 149 Comment
  UC72741  Vancouveria planipetala Milo S. Baker May, 1899 Sonoma Green Valley; near Gallager's Comment
  CAS-BOT-BC135768  Veratrum fimbriatum Elizabeth Eaton Morse 1936-8-30 s.n. Sonoma Gualala River 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
  CDA41760  Verbascum bombyciferum G. F. Hrusa, M. Gillogly 2000-7-26 15680 Sonoma North Coast Biodiversity Arena; Dry bed of Leslie Creek, 1/4 mi. above confluence with Mark West Ck. Sheet 1 of 2. Comment
  UCR244665  Veronica Peter Rubtzoff 1966-6-5 5757 Sonoma Laguna de Santa Rosa east of Graton, between Occidental and Guerneville roads 23 Comment
  CAS-BOT-BC262794  Veronica americana Peter Rubtzoff 1973-8-29 7280 Sonoma Sonoma Creek, near Agua Caliente Road crossing west of Agua Caliente. Comment
  RSA786489  Veronica americana Peter Rubtzoff 1962-8-22 5049 Sonoma Bodega Bay Marsh. Comment
  RSA264764  Veronica anagallis-aquatica Peter Rubtzoff 1972-6-23 6782 Sonoma Laguna de Santa Rosa northeast of Graton, ca 0.5 mi north of Guerneville Road crossing. Comment
  RSA276858  Veronica anagallis-aquatica Peter Rubtzoff 1968-9-21 5983 Sonoma Russian River bottom at Forest HIlls, 5.5 mi east of Guerneville. Comment
  UC750806  Veronica arvensis Charles B. Heiser Jr. 1946-4-13 1717 Sonoma 3 mi w of Duncan Mills (near Russian River) Comment
  RSA799984  Vicia Peter Rubtzoff 1973-8-27 7265 Sonoma Upper Green Valley Marsh. Comment
  UCD165161  Vicia Peter Rubtzoff 1974-5-25 7462 Sonoma Upper Green Valley Marsh area. Comment
  RSA177953  Vicia americana var. americana Robert F. Thorne 1965-4-20 34323 Sonoma Parker Hill Rd, 2.5 miles N of Santa Rosa and 1 mile N of Sonoma County Hospital. 107 Comment
  SEINET4965652  Vicia gigantea Unknown 1994-4-3 69 Sonoma approx. 6.5mi SE of Gualala in the Sea Ranch community on the Pacific Coast; vicinity of Sea Ranch Airstrip Comment
  UCR254843  Vicia gigantea Greg de Nevers 1998-3-14 11147 Sonoma Duncans Landing Beach, north of Bodega bay 0 Comment
  JEPS66188  Vicia pannonica Milo S. Baker May 1931 5162 Sonoma Rincon School Rincon Valley (Rincon Valley, in Austin's field just n of highway) Comment
  RSA239726  Vicia sativa Unspecified 1973-5-18 1083 Sonoma Pitkin-Jones Tree Farm; on Vine Hill Road, 1.3 mi. north of jct. with Guerneyville Rd. from Santa Rosa. Comment
  UC454617  Vicia sativa subsp. sativa I. J. Condit 1908-8-13 Sonoma Guerneville Comment
  UCR198231  Vicia villosa Dean Kelch, A. G. Murdock, Ben Carter 2007-5-13 07 .274 Sonoma Cavesdale Road 518 Comment
  CDA34791  Vinca major Peter Warner 2010-3-1 111 Sonoma State Hwy 1 at 6.77 mile marker, west of junction of Bay Hill Rd. between road and Cheney Gulch Creek. Comment
  SEINET9288686  Vinca major Unknown 1990-5-4 Sonoma Sonoma Co. Riparian, with Vitis, Alnus. Botany 102, Botany Department, University of California, Davis. Comment
  POM135111  Viola adunca A. A. Heller, H. E. Brown 1902-3-29 5179 Sonoma Bodega Bay Comment
  UC1057435  Viola douglasii G. Thomas Robbins 1937-3-25 9 Sonoma 8-10 mi e of Santa Rosa (near Golf and Country Club); Santa Rosa Creek Canyon Comment
  CAS-BOT-BC536902  Viola glabella Volney Rattan 1880-4-1 s.n. Sonoma Duncans Mill Comment
  CAS-BOT-BC536909  Viola glabella Volney Rattan 1877-6-14 s.n. Sonoma Guerneville Comment
  RSA80503  Viola lobata Milo S. Baker 1942-4-29 10189 Sonoma Spring Mt Road near summit. Near Napa -Sonoma county line. 457 Comment
Read comments
Jun 10 2012
  UCD110909  Viola lobata G. F. Hrusa 1992-4-15 10376 Sonoma Along Cavedale Road, approximately 5 m. E of Boyes Hot Springs. Comment
  UC1762486  Viola lobata subsp. integrifolia Milo S. Baker 1942-6-11 10205 Sonoma Spring Mt. Rd. near Summit. 457 Comment
  CDA10944  Viola ocellata G. F. Hrusa, G. L. Stebbins 1994-3-28 11702 Sonoma North Coast Biodiversity Arena; Along Austin Creek, 4.3 m. N of Duncan's Mills on D.M. Cazadero Rd. Adjacent to East Austin Cr. Rd. on E side of Creek. Comment
  UC1761472  Viola ocellata Milo S. Baker 1898-4-3 991 Sonoma between Cazadero and Guerneville Comment
  UC336275  Viola ocellata J. Ewan 1877-3-1 Sonoma Skaggs Springs Comment
  UC762287  Viola ocellata R. F. Hoover 1941-5-14 5075 Sonoma 3 mi s of Monte Rio (on road to Camp Meeker) Comment
  UCD111068  Viola pedunculata Mary M. Hektner 1975-4-27 188 Sonoma Unit 24 Owner's Map, Sea Ranch, near State Highway 1. Comment
  UC337768  Viola sempervirens unknown Mar. 1888 Sonoma Redwoods near Healdsburg Comment
  CAS-BOT-BC135296  Viscum album William O. McCartney 1966-5-4 s.n. Sonoma in a residential property, NW corner of Mill Station Road and Gravestein North Highway, Sebastopol Comment
  OBI65600  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
  UC1393645  Viscum album W. J. Ferlatte and William O. McCartney 1970-12-22 1325 Sonoma Sebastopol; nw corner of Mill Station and Gravenstein Highway Comment
  CAS-BOT-BC203122  Vitis californica Wosnessensky No date on label s.n. Sonoma Ross Comment
  CAS-BOT-BC203129  Vitis californica Peter Rubtzoff 1951-8-5 595 Sonoma Mirabel Park, 1 1/2 mi. north of Forestville Comment
  CAS-BOT-BC385036  Vitis californica L. R. Abrams 1922-6-21 8099 Sonoma Healdsburg to Cloverdale Comment
  UC419014  Vitis californica H. E. and S. T. Parks 1930-8-20 693 Sonoma Maacama Creek Comment
  RSA0121714  Vitis californica Lewis S. Rose 1968-6-25 68115 Sonoma Rincon Ridge, NE of Santa Rosa. 122 Comment
  SEINET10691477  Vitis californica John H. Redfield 1872-8-26 Redfield 1106 Sonoma Geysers Comment
  UCD17548  Vitis californica H. Olmo 1934-9-30 s.n. Sonoma 3 miles N on Upper Lake Highway, east of Ukiah. Near first highway bridge. Comment
  UCD17551  Vitis californica H. Olmo 1934-9-30 s.n. Sonoma 2 miles N on Upper Lake Highway, E of Ukiah. Comment
  UC573936  Vulpia bromoides H. S. Yates 1937-6-6 6585 Sonoma 3 mi e Jenner; Duncan Hills Quad. 60 Comment
  RSA0065161  Vulpia microstachys Greg de Nevers 1997-4-24 10963 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 100 Comment
  CAS-BOT-BC183219  Vulpia microstachys var. ciliata John Thomas Howell 1943-4-18 17924 Sonoma Hills east of Agua Caliente Comment
  UC933825  Vulpia microstachys var. confusa Leo Koch 1940-4-22 839 Sonoma Geysers; Sulphur Creek Canyon Comment
  POM206212  Vulpia myuros A. A. Heller 1902-4-4 5221 Sonoma Hills near Santa Rosa. Comment
  CAS-BOT-BC185831  Vulpia myuros subsp. megalura John Thomas Howell; Catherine Best; Wilma Follette; Mary Wells 1982-4-28 54657 Sonoma Bouverie Audubon Preserve, about 1.5 miles east of Glen Ellen near Stuart Creek 137 Comment
  CAS-BOT-BC185834  Vulpia myuros subsp. megalura W. L. Jepson 1911-4-30 4186 Sonoma Sonoma Valley 83 Comment
  UCR250223  Wahlenbergia marginata Peter Warner 2013-3-27 271 Sonoma Glen Oaks Ranch, c. 1 mi east of Glen Ellen, in northeast part of ranch 168 Comment
  CAS-BOT-BC128750  Whipplea modesta John H. Thomas 1955-5-22 5188