Search Results — 2000 specimen records retrieved (1281 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/consortium/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC78076  Abies grandis Walter Knight; Irja Knight 1984-8-18 5018 Sonoma Gualala Point Regional Park over-looking Gualala River Comment
  SEINET946043  Abronia latifolia Leo A. Galloway 1968-1 598 Sonoma Doran County Park. Comment
  UCD14884  Abronia latifolia Chris Chan 1991-3-5 4 Sonoma California, Sonoma Co.; at the University of California Bodega Marine Lab; 33 Comment
  UCR143597  Acaena novae-zelandiae G. F. Pratt, C. Pierce 2003-5-15 s.n. Sonoma North Coast, Salt Point State Park 122 Comment
  UCD112508  Acaena pinnatifida var. californica P. G. Connors 1991-6-27 185 Sonoma Bodega Marine Laboratory. Bodega Head and Dunes. Near Horseshoe Cove. Comment
  RSA785741  Acer macrophyllum Carrie A. Herd 1982-5-9 91 Sonoma Trinity Road; turnout; down hillside of road cut. Comment
  UC1171645  Acer negundo var. californicum H. S. Yates 1934-4-21 3809 Sonoma near Markham; Duncan's Mills Quad., near Markham 15 Comment
  UCD128374  Achillea millefolium Terri Williamson 1990-5-20 50 Sonoma Bayflat Road, Bodega Bay. 3 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
  OBI48781  Acmispon brachycarpus L. F. LaPre 1986-5-31 s.n. Sonoma Socrates Mine, ca 9 mi ENE of Geyserville. The Geysers quad T11N R8W, sec 32 914 Comment
  SBBG84015  Acmispon brachycarpus L. F. LaPre 1986-5-31 Sonoma Socrates Mine, ca. 9 mi ENE of Geyerville 914 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
  UCD104065  Acmispon brachycarpus Freed W. Hoffman 1946-9-26 561 Sonoma Layton Mine, Austin Creek. Comment
  SBBG3390  Acmispon cytisoides H. and M. Dearing 1939-5-14 3378 Sonoma near Fort Ross Comment
  NY380622  Acmispon gracilis A. A. Heller 1902-6-24 5754 Sonoma Near Burke's Santarium Comment
  UCSB50219  Acmispon strigosus Gray, John 1976-5-1 Sonoma Bluff above Salmon Creek State Beach; T6N R11W 18 Comment
  CAS-BOT-BC29850  Adenocaulon bicolor Rimo Bacigalupi 1926-5-2 1398 Sonoma Cazadero Comment
  CAS-BOT-BC30277  Adenocaulon bicolor A. A. Heller 1902-6-26 5771 Sonoma Along Sonoma Creek at the foot of Mt. Hood Comment
  UCD160903  Adiantum jordanii James A. Neilson Jr.; Teresa A. Sholars 1975-6-29 3351 Sonoma Section 10, ca. 2 miles west of the Geysers Resort. (Exact location unknown. Coordinates and elevation estimated by label maker.) 396 Comment
  SEINET1908065  Aesculus californica Lewis S. Rose 1968-1 58116 Sonoma Rincon Valley, Brush Creek, ne of Santa Rosa 122 Comment
  SEINET265728  Aesculus californica Royal D. Suttkus 1967-6-25 67- 29 -1 Sonoma 4.4 miles SE of Alexander Valley. Comment
  CAS-BOT-BC29576  Agoseris apargioides var. eastwoodiae Rimo Bacigalupi 1928-6-18 1877 Sonoma At mouth of Salmon Creek, 2 miles south of Bodega Bay Comment
  UCD128435  Agoseris grandiflora Frederica Bowcutt 1994-6-12 1864 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
  UC1041088  Agoseris hirsuta J. W. Congdon 1880-5-23 Sonoma Petaluma Comment
  CAS-BOT-BC176404  Agrostis Peter Rubtzoff 1971-6-25 6558 Sonoma W side of Hwy. 1, 0.7 mi. SE of Salmon Creek Crossing Comment
  CAS-BOT-BC210007  Agrostis Peter Rubtzoff 1970-9-3 s.n. Sonoma Marsh off Hwy. 1, 0.7 mi. SE of Salmon Creek Crossing Comment
  CAS-BOT-BC210017  Agrostis Peter Rubtzoff; H. A. Froebe 1971-5-30 6501 Sonoma 4.25 mi. W of Glen Ellen on Bennett Valley Road. Comment
  CAS-BOT-BC383037  Agrostis Greg de Nevers 1989-4-1 9061 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 400 Comment
  SEINET10717806  Agrostis P. Rubtzoff 1968-6-19 Rubtzoff 5889 Sonoma Forest Hills (5.5 miles E of Guerneville). Russian River bank. Comment
  UC1146693  Agrostis blasdalei Freed W. Hoffman 1943-5-16 2208 Sonoma Death Rock North Coast Ranges, Sonoma Coast, Bodega Park (Bodega Park, Sonoma Coast) Comment
  UCD51887  Agrostis densiflora Beecher Crampton 1957-7-11 4331 Sonoma Sonoma Coast State Park, 0.9 miles north of Salmon Creek. Comment
  UCD51888  Agrostis densiflora Beecher Crampton 1957-7-11 4320 Sonoma Sonoma Coast State Park, 1/2 mile north of Salmon Creek. Comment
  UCD52006  Agrostis densiflora Beecher Crampton 1957-7-22 4399 Sonoma roadcut of State Hwy. 1, 8.8 miles south of Fort Ross. Comment
  UCD161760  Agrostis exarata James A. Neilson Jr. 1975-7-8 3393 Sonoma Mayacmas Mountains; western portion of Geyser Rock.(Coordinates and elevation estimated by label maker.) 1066 Comment
  UCD52391  Agrostis exarata A. A. Beetle; G. L. Stebbins Jr. 1942-6-4 3556 Sonoma 10 miles northeast of Santa Rosa on road to Calistoga. Comment
  UCD52126  Agrostis exarata Beecher Crampton 1956-6-26 3619 Sonoma about 8 miles northwest of Calistoga, State Hwy. 120. Comment
  UCD52498  Agrostis exarata A. A. Beetle; G. L. Stebbins Jr. 1942-7-4 3593 Sonoma corner of Wright Road and Rt. 12 in outskirts of Santa Rosa. Comment
  UCD53510  Agrostis exarata P. B. Kennedy 1916-7-17 s.n. Sonoma Del Mar. Comment
  UC1130720  Agrostis hallii H. S. Yates 1937-6-6 6579 Sonoma 8 mi sw Healdsburg; Healdsburg Quad. Comment
  UC126593  Agrostis hallii F. T. Bioletti Jun 1893 Sonoma Hood's Peak Comment
  UCD52716  Agrostis hallii Roxana S. Ferris; Laura Lorraine 1961-6-15 13568 Sonoma About 1/8 mile beyond County Dump. 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
  UC1146631  Agrostis microphylla Freed W. Hoffman 1944-5-30 2013 Sonoma sand banks Russian River (Guernewood Park); North Coast Ranges, , Guernewood Park Comment
  UCD53018  Agrostis microphylla Beecher Cramppon 1959-6-16 5381 Sonoma 1 mile east of Occidental. Comment
  UCD53026  Agrostis microphylla Beecher Crampton 1959-6-16 5380 Sonoma 1 mile E of Occidental. Comment
  CAS-BOT-BC138917  Agrostis pallens G. DeNevers 1981-6-15 1519 Sonoma Pepperwood Ranch. Lower Pepperwood entrance. Comment
  UCD53195  Agrostis pallens P. B. Kennedy 1916-7-17 s.n. Sonoma Del Mar. Comment
  CAS-BOT-BC539342  Agrostis pallens Frederica Bowcutt 1994-6-12 1856 Sonoma Sugarloaf Ridge State Park, about 50 air mi N of San Francisco, 10 air mi E of Santa Rosa, 1.5 air mi N of Kenwood, and 18 air mi NW of Napa; Adobe Canyo N of Sonoma Creek, N of Adobe Canyon Rd, at Pony Gate trail jct 432 Comment
  SEINET7594124 Image available Agrostis perennans A. A. Beetle 1941-1 2855 Sonoma 5 miles south of Steward Point 24 Comment
  CAS-BOT-BC138595  Agrostis stolonifera A. A. Beetle 1941-7-8 2855 Sonoma Sonoma county coast, 5 miles south of Stewart Point. Comment
  RSA94459  Agrostis stolonifera Peter Rubtzoff 1951-7-21 514 Sonoma Pitkin Marsh, near Forestville, between the Upper and the Lower marshes Comment
  CAS-BOT-BC47988  Ailanthus altissima Greg de Nevers 1992-6-26 10185 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Along Franz Creek. 91 Comment
  CAS-BOT-BC176183  Aira caryophyllea Peter Rubtzoff 1974-5-26 7475 Sonoma Vernal pool 4.25 mi. west of Glen Ellen on Bennett Valley Road. Comment
  UCD37349  Aira caryophyllea Beecher Crampton 1959-6-16 5368 Sonoma Sonoma County, 0.2 mile east of Occidental, on Occidental Road. Comment
  CAS-BOT-BC138390  Aira caryophyllea var. capillaris L. R. Abrams 1918-4-27 6903 Sonoma Independence School near Healdsburg. Comment
  CAS-BOT-BC138211  Aira caryophyllea var. caryophyllea David L. Morgan 1955-6-30 s.n. Sonoma Under bridge at Austin Creek, 3 miles west of Monte Rio, State Highway #12. Comment
  UCD37149  Aira praecox Beecher Crampton 1957-7-11 4327 Sonoma Sonoma County, 0.9 mile north of Salmon Creek, Sonoma Coast State Park, along State Highway 1. Comment
  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
  UCD55335  Alisma lanceolatum Ellen Dean 2006-6-28 3179 Sonoma Town of Kenwood. East side of Hwy. 12. Kunde Vineyards. In southeast part of vineyard where a new reservoir is planned 169 Comment
  CAS-BOT-BC445339  Alisma lanceolatum Peter Rubtzoff 1954-8-12 1697 Sonoma Bennett Mtn. Lake. Comment
  RSA790060  Alisma lanceolatum Peter Rubtzoff 1968-8-31 5953 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  SBBG39698  Alisma lanceolatum P. Rubtzoff 1955-7-16 1959 Sonoma Bennett Mountain Lake Comment
  CAS-BOT-BC445463  Alisma triviale Peter Rubtzoff 1956-9-15 2903 Sonoma Atascadero Creek Marsh. Comment
  CAS-BOT-BC376322  Allium Greg de Nevers 1993-5-17 10450 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. In Devil's Kitchen east of 3865 Franz Valley Road. 400 Comment
  CAS-BOT-BC461068  Allium amplectens Alice Eastwood 1915-6-5 4607 Sonoma Petrified Forest Comment
  HSC2927  Allium amplectens Beecher Crampton 1966-5-10 7731 Sonoma 6.5 mi. N of Sonoma, Hwy. 12 Comment
  POM272871  Allium triquetrum Boone Hallberg 1947-4-12 220 Sonoma Half mile SE of Graton. 91 Comment
  CAS-BOT-BC474314  Allium unifolium G. DeNevers 1981-5-9 1073 Sonoma In the Oak Woodland Canyon between the two streams draining to the Redwood Canyon Comment
  UCD141806  Allium unifolium T. C. Fuller 1967-5-19 15884 Sonoma south side of Petaluma Valley Ford Hwy, 2 miles NE of Two Rock. Comment
  CAS-BOT-BC171434  Alnus rhombifolia Marcus E. Jones 1982-7-17 3484 Sonoma Duncan's Mills 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
  RSA800595  Alnus rubra Peter Rubtzoff 1966-11-9 5836 Sonoma Salmon Creek near Freestone. Comment
  CAS-BOT-BC138047  Alopecurus aequalis var. sonomensis Peter Rubtzoff 1955-5-21 1882 Sonoma Ross Marsh. Comment
  UC576308  Alopecurus aequalis var. sonomensis H. S. Yates 1936-5-16 5603 Sonoma 2 mi. s.e. Forestville (Pitkin Marsh); Sebastopol Quad., Pitkin Marsh 30 Comment
  CAS-BOT-BC137905  Alopecurus saccatus Peter Rubtzoff 1968-6-20 5894 Sonoma 6.5 miles northeast of Penngrove on Lichan Road. 426 Comment
  JEPS45802  Alopecurus saccatus Eleanor Armstrong 1932-6-4 186 Sonoma 5 mi. w. Graton (<Schlackey> Flat) 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
  JEPS117084  Amelanchier alnifolia var. semiintegrifolia Peter Warner 2010-4-15 133 Sonoma Jenner Headlands, Sonoma Land Trust property, ~ 300 m E of primary access road (Willig Ave. extension), at corral gate near house, ~ 1 km N of Jenner village, on rock outcrop in grassland. Comment
  POM141359  Amelanchier pallida A. A. Heller 1903-4-24 6617 Sonoma Woods near Cazadero. Comment
  CAS-BOT-BC135672  Amelanchier utahensis John Thomas Howell 1930-6-8 5287 Sonoma 8.5 miles n. of Bodega Bay Comment
  UCD158732  Amelanchier utahensis Teresa A. Sholars 1976-9-10 s.n. Sonoma Mayacmas Mtns. Along Big Sulphur Creek. Ca. 2 mi southeast of the junction of Pine Flat Rd. and Socrates Mine Rd. Elevation estimated by label maker. 853 Comment
  JEPS97564  Ammophila arenaria R. D. Stone 1980-11-28 322 Sonoma Northern part of the Sea Ranch development N of Stewart's Point. 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
  UC400144  Amorpha californica var. napensis Ynes Mexia 1929-6-2 2390 Sonoma canyon near Mark West Springs Comment
  UC1084531  Amsinckia intermedia Peter Kamb 1952-5-30 2293 Sonoma 8 mi w of Petaluma (on road to Marshall) Comment
  SD41476  Anagallis arvensis Edith A. Purer 1932-7-21 4052 Sonoma Bodega Bay, sea bluff Comment
  POM44461  Anagallis arvensis Janet Beckman 1882-7-17 s.n. Sonoma Duncans Wills. Comment
  UCD117554  Anagallis arvensis C. Wistrom 1996-4-6 20 Sonoma Healdsburg, 1601 Dry Creek Road. 48 Comment
  UC581123  Ancistrocarphus filagineus H. L. Mason 1934-4-28 8093 Sonoma Jenson's Ranch; Dohrmann Creek Comment
  CAS-BOT-BC137792  Andropogon virginicus var. virginicus R. D. Stone 1983-6-16 555 Sonoma At the Little Geysers, upper Big Sulphur Creek drainage. 701 Comment
  CAS-BOT-BC391872  Anemone grayi Mrs. H. C. Cantelow 1939-4-12 s.n. Sonoma On the road to Cazadero via Plantation Comment
  UCR255042  Anemone oregana Greg de Nevers 1997-2-28 10902 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  POM188472  Angelica californica Marcus E. Jones 1931-7-5 29050 Sonoma Cloverdale. Comment
  UC640633  Angelica californica Alice Eastwood, John Thomas Howell 1938-7-6 6084 Sonoma Alder Glen Springs Comment
  CAS-BOT-BC221433  Angelica hendersonii Walter Knight; Irja Knight 1963-8-13 304 Sonoma Harrison Grade Comment
  UCD127228  Angelica hendersonii Mary M. Hektner; Cathy Hendel 1974-7-25 175 Sonoma Shell Beach; Unit 28 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC271436  Anisocarpus madioides Volney Rattan 1877-6-16 s.n. Sonoma Guerneville Comment
  CAS-BOT-BC271440  Anisocarpus madioides H. M. Hall 1931-5-28 13103 Sonoma Four miles northeast of Mark West Spr., Northeastern Sonoma County Comment
  CAS-BOT-BC102234  Anthemis cotula Greg de Nevers 1987-5-11 8175 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC173818  Anthemis cotula Peter Rubtzoff 1959-6-13 4139 Sonoma Willow Creek Marsh. Comment
  JEPS97536  Anthoxanthum aristatum R. D. Stone 1980-11-28 320 Sonoma the Sea Ranch; Annapolis Road area just below and W of landing strip Comment
  UC903686  Anthoxanthum aristatum Leo Koch 1940-4-22 841 Sonoma n of Winson (e of Hwy 101) Comment
  SEINET11671349  Anthoxanthum aristatum Unknown 1940-1 841 Sonoma along Hwy 101, N of Windsor Comment
  SEINET8718117 Image available Anthoxanthum aristatum Leo Koch 1940-1 841 Sonoma Along Highway 101, north of Windsor. Comment
  CAS-BOT-BC280669  Anthoxanthum occidentale Peter Rubtzoff 1953-5-17 1377 Sonoma Vacation Beach, near Guerneville 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
  UC730018  Anthoxanthum odoratum Leo F. Koch 1940-4-21 Sonoma 2.5 mi n of Anchor Bay (Highway 1); Highway 1 Comment
  UCR25609  Anthoxanthum odoratum John C. Roos 1938-6-20 1524 Sonoma Between Santa Rosa and Sonoma Comment
Read comments
Feb 9 2010
  CAS-BOT-BC137696  Anthoxanthum odoratum David L. Morgan 1956-5-23 s.n. Sonoma Middle Tow Rock Road near junction of Petaluma-Valley Ford road. Comment
  UC249613  Anthriscus caucalis Joseph P. Tracy 1921-5-26 5799 Sonoma near Cloverdale (on road towards Hopland); Northern Coast Ranges 304 Comment
  UCR179374  Anthriscus caucalis Frederica Bowcutt 1994-6-12 1859 Sonoma Sugarloaf Ridge, About 50 air miles N of San Francisco, 10 miles east of Santa Rosa, 1.5 miles 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 433 Comment
  UC444960  Antirrhinum vexillocalyculatum subsp. breweri Milo S. Baker 1907-6-28 Sonoma near Duncan's Mills (Russian River); Russian River Comment
  JEPS83376  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum David M. Thompson 1983-6-13 327 Sonoma 5.4 mi up Old Cazadero Road (via Cherry Street) from Hwy 116 (in the town of Guernewood Park); Guernewood Park, Cazadero Quad. (7.5', 1943) 243 Comment
  POM188514  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Marcus E. Jones 1931-7-5 28820 Sonoma Cloverdale Comment
  UCD126297  Apiastrum angustifolium Frederica Bowcutt 1996-5-19 2126 a Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles N of Kenwood, and 18 air miles NW of Napa. Adobe Canyon firebreak (narrow) btw. lower Bald Mtn. and Bald Mt. Trail. 487 Comment
  SEINET5779372 Image available Apium graveolens Marcus E. Jones 1882-1 3604 Sonoma Duncan's Mills Comment
  UC629783  Apocynum androsaemifolium Milo S. Baker 1939-5-19 9334 Sonoma Gravenstein Hwy. ca. 1 mi. s. of Sousa's Cornera Comment
  CAS-BOT-BC394990  Aquilegia formosa Saichi Kawahara 1968-4-20 322 Sonoma Trinity Road, 1 mile northwest of Highway 12 152 Comment
  CAS-BOT-BC128618  Arbutus menziesii Peter Rubtzoff 1951-8-18 615 Sonoma Uppermost part of the western branch of the Upper Marsh - Pitkin Marsh, near Forestville Comment
  POM367169  Arbutus menziesii Christopher Davidson 1977-6-20 6014 Sonoma Dry Cr. Rd. 8.6 mi. W of Geyserville. 91 Comment
  SEINET7258086  Arbutus menziesii L. Fallon 1939-1-2 s.n. Sonoma 15 miles west of Santa Rosa Comment
  JEPS98902  Arctostaphylos James Roof and Walter Knight 1967-3-20 Sonoma N side of Guerneville Road, 1/2 mi W of Vine Hill Road 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
  RSA629205  Arctostaphylos Jon E. Keeley 1993-9-11 24795 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA629217  Arctostaphylos Jon E. Keeley 1993-9-11 24782 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  UC1388332  Arctostaphylos Freed W. Hoffman 1947-2-28 764 Sonoma near Healdsburg (headwaters of creek (which is a branch of Mill Creek)); North Coast Ranges, Wild Hog Ridge, Palmer Creek Comment
  UC549554  Arctostaphylos J. E. Adams 1934-3-28 718 Sonoma near Santa Rosa; Vine Hill Comment
  CAS-BOT-BC24078  Arctostaphylos bakeri Walter Knight; Irja Knight 1985-12-29 6378 Sonoma Harrison Grade 213 Comment
  UC909852  Arctostaphylos bakeri J. E. Adams 1935-3-1 1027 Sonoma 2 mi w Occidental Comment
  SDSU1487  Arctostaphylos bakeri subsp. bakeri D. F. Howe 1969-6-8 4635 Sonoma 3.8 miles east of Occidental. 274 Comment
  UCD50407  Arctostaphylos bakeri subsp. sublaevis Roger Raiche 1982-4-10 20301 A Sonoma King Ridge Rd. (4.5 mi. n. of jct. with Ft. Ross Rd.) about 0.7 mi. in from King Ridge Rd. on Old Layton Mine Rd. On topo map, area is called 'The Cedars,' north of Cazadero, in Sonoma County. Comment
  SEINET11987356  Arctostaphylos canescens W. Knight, Knight, I. 1981-1 3986 Sonoma 4.2 mi up Cavedale Rd from jct of CA 12 Comment
  UC1281371  Arctostaphylos canescens subsp. canescens H. E. McMinn 1936-4-4 4395 Sonoma ridge near R. L. Stevenson Monument; Mt. St. Helena Comment
  UCD170266  Arctostaphylos canescens subsp. canescens S. J. Seybold; M. A. Siefker 2017-11-14 s.n. Sonoma Vadasz Vineyards, 18070 Carriger Road.Located along driveway near house. 64 Comment
  UC535019  Arctostaphylos canescens subsp. sonomensis H. F. Copeland 1933-3-18 A 12 Sonoma n Santa Rosa; Rincon Ridge Comment
  UC549707  Arctostaphylos canescens subsp. sonomensis J. E. Adams 1935-3-1 1022 Sonoma e Sta. Rosa; Rincon Ridge Comment
  UC549708  Arctostaphylos canescens subsp. sonomensis J. E. Adams 1935-3-1 1023 Sonoma e Sta. Rosa; Rincon Ridge Comment
  CAS-BOT-BC23650  Arctostaphylos columbiana J. E. Adams 1934-3-28 731 Sonoma Seven miles north of Fort Ross Comment
  CDA12242  Arctostaphylos columbiana G. F. Hrusa 1989-1-1 5796 Sonoma North Coast Biodiversity Arena; Approx. 5 miles N of Fort Ross on Hwy 1. Comment
  CAS-BOT-BC23638  Arctostaphylos columbiana Mary P. Wells 1985-10-4 669 a Sonoma About 1 mile south of Gualala River Comment
  CAS-BOT-BC25019  Arctostaphylos densiflora H. F. Copeland 1933-3-18 A 5 Sonoma Near Vine Hill Schoolhouse. Comment
  POM204431  Arctostaphylos densiflora J. T. Howell 1931-3-14 5770 Sonoma Vine Hill District Comment
  RSA32906  Arctostaphylos densiflora A. A. Heller 1941-3-2 15881 Sonoma about 9 miles west of Santa Rosa on roadside banks just west of the Vine Hill Schoolhouse Comment
  UC1093995  Arctostaphylos densiflora Lewis S. Rose 1955-2-28 55003 Sonoma 9 mi w Santa Rosa (type locality); Vine Hill Comment
  UC1120153  Arctostaphylos densiflora A. E. Wieslander 1938-10-29 831 Sonoma Vine Hill Sebastopol Quadrangle 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
  UCD166540  Arctostaphylos glandulosa Dylan O. Burge 2016-2-16 2041 Sonoma Gilfillian Vineyard, roadside on Cavedale Road. 400 Comment
  UCD23476  Arctostaphylos glandulosa Alan T. Whittemore 1976-5-31 134 Sonoma Hwy 1 about 2 mi. south of Salt Point State Park and north of Fort Ross. Comment
  SEINET11993024  Arctostaphylos glandulosa W. Knight, Knight, I.; Edwards, S. W. 1985-1 5170 Sonoma 5.1 mi W on Kelly Rd from Rockpile Rd junction, S of Mt. Tom 610 Comment
  RSA631182  Arctostaphylos glandulosa subsp. cushingiana Jon E. Keeley 1993-9-11 24729 Sonoma Chaparral on south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA631193  Arctostaphylos glandulosa subsp. cushingiana Jon E. Keeley 1993-9-11 24737 Sonoma Chaparral on south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  CAS-BOT-BC24677  Arctostaphylos glandulosa subsp. glandulosa Walter Knight; Irja Knight; Steve Edwards 1986-3-23 5366 Sonoma On Geysers Rd. near Mercuryville at junction of private road ro Sulphur Peak. 822 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-BC39111  Arctostaphylos hispidula Roger Raiche 1984-1-14 40016 Sonoma Roackpile Road, 9/1 miles northwest of its intersection and beginnin at Stewarts Point-Skaggs Springs Road. 502 Comment
  RSA364261  Arctostaphylos hispidula Roger Raiche 1984-1-14 40016 Sonoma Rockpile Road, 9.1 miles northwest of its intersection and beginning at Stewarts Point- Skaggs Springs Rd. 502 Comment
  UCD50864  Arctostaphylos hispidula Roger Raiche 1984-2-26 RR 40044 Sonoma ca. 9.1 miles north of origin of Skaggs Springs-Stewarts Point Road on Rockpile Road. 502 Comment
  CAS-BOT-BC39110  Arctostaphylos hispidula Roger Raiche 1984-2-3 40028 Sonoma Kelly road northwest of Mt. Tom (5.3 miles northwest from its origin at Roackpile Road) 533 Comment
  SEINET11993016  Arctostaphylos hispidula W. Knight, Knight, I.; Edwards, S. W. 1985-1 5172 Sonoma S of Mt. Tom, 5.1 mi W of Kelly Road from Rockpile Road junction 610 Comment
  CAS-BOT-BC38989  Arctostaphylos manzanita Roger Raiche 1983-7-4 30475 Sonoma East Austin Creek State Rec. Area, Morrison Ridge above Gilliam Creek, along old mine road. 274 Comment
  SD107651  Arctostaphylos manzanita Walter Knight, Irja Knight 1980-12-23 3857 Sonoma On south end of Vine Hill Road. Comment
  UCD160759  Arctostaphylos manzanita James A. Neilson Jr.; Teresa A. Sholars 1974-6-6 3258 Sonoma Mayacmas Mountains, ca. 3.5 miles west of Glenbrook and Bottle Rock Road., vicinity of Caldwell Pines. (Elevation and coordinates estimated by label maker.) 975 Comment
  UCD52043  Arctostaphylos manzanita Daryl Koutnik; Mary Barbercheck 1981-6-18 s.n. Sonoma Austin Creek State Recreation Area about 4 miles north of Guerneville. 487 Comment
  UCD59184  Arctostaphylos manzanita Roger Raiche 1982-11-21 20862 Sonoma Above Gilliam Creek, East Austin Creek State Rec. Area. Comment
  UCD59420  Arctostaphylos manzanita Walter and Irja Knight; Research Associates, Roger Raiche, and Steve Edwards 1983-7-3 4753 Sonoma The Cedars, near Cazadero, on Twitchell Ranch. 274 Comment
  SEINET11990965  Arctostaphylos manzanita Unknown 1983-1 30475 Sonoma Morrison Ridge above Gilliam Creek, East Austin Creek State Recreation Area 274 Comment
  SEINET11993022  Arctostaphylos manzanita W. Knight, Knight, T. 1985-1 5176 Sonoma Lovers' Leap area of John Joost Ranch on Calistoga Road between St. Helena Rd & Porter Creek Rd Comment
  RSA364259  Arctostaphylos manzanita subsp. bakeri Roger Raiche 1983-9-20 RR 30723 Sonoma Graton Road near intersection with Tanuda Road (east of Occidental) Comment
  CAS-BOT-BC38947  Arctostaphylos manzanita subsp. elegans Alice Eastwood 1922-5-5 11302 Sonoma Mt. St. Helena Comment
  UCD160020  Arctostaphylos manzanita subsp. elegans James A. Neilson Jr. 1975-1-24 3139 Sonoma Mayacmas Mountains; Dominichelli Ranch # 1. (Exact location unknown. Elevation and coordinates estimated by label maker.) 731 Comment
  CAS-BOT-BC38922  Arctostaphylos manzanita subsp. glaucescens P. V. Wells; Walter Knight; Irja Knight 1986-1-10 5223 Sonoma Next to Carlton Spridgeon's mailbox on Rockridge Lane, Rincon Ridge, Santa Rosa. Comment
  CAS-BOT-BC38718  Arctostaphylos manzanita subsp. manzanita John Thomas Howell 1931-3-14 5775 Sonoma Vine Hill district, 10 miles west of Santa Rosa Comment
  CAS-BOT-BC38750  Arctostaphylos manzanita subsp. manzanita Lewis S. Rose 1955-2-28 55007 Sonoma 2 mi. w. of Graton, road to Occidental 121 Comment
  POM209912  Arctostaphylos manzanita subsp. manzanita H. F. Copeland 1933-3-18 A 9 Sonoma Residence of M.S. Baker, at west base of Mt. Hood. Comment
  RSA3947  Arctostaphylos manzanita subsp. manzanita I. L. Wiggins 1932-3-12 5762 Sonoma Between Franz Valley and Knight's Valley. Comment
  SBBG28917  Arctostaphylos manzanita subsp. manzanita J. Clausen 1933-3-26 750 Sonoma Baker Ranch, Kenwood, Adobe Cyn Comment
  SBBG60025  Arctostaphylos manzanita subsp. manzanita A. A. Beetle 1940-2-18 1573 Sonoma Pitkin Ranch, 10 mi W of Santa Rosa Comment
  UC1043526  Arctostaphylos manzanita subsp. manzanita P. C. Everett and E. K. Balls 1954-10-20 20377 Sonoma 4 mi sw Lake-Sonoma Co. line (nw to w slope Mt. St. Helena) 640 Comment
  UC1388367  Arctostaphylos manzanita subsp. manzanita Freed W. Hoffman 1947-4-7 1879 Sonoma between Healdsburg Calistoga; North Coast Ranges Comment
  RSA636811  Arctostaphylos stanfordiana Jon E. Keeley 1993-9-11 24753 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA636817  Arctostaphylos stanfordiana Jon E. Keeley 1993-9-11 24749 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  UC1093994  Arctostaphylos stanfordiana Lewis S. Rose 1955-2-28 55009 Sonoma 2 mi w Graton 121 Comment
  UCD162184  Arctostaphylos stanfordiana D. O. Burge; K. Zhukovsky, A. Ash, M. Schwager 2014-3-23 1522 Sonoma Hooker Creek watershed. 520 Comment
  SEINET11984944  Arctostaphylos stanfordiana subsp. bakeri Unknown 1966-1 695 Sonoma E of Occidental Ridge on Graton Rd, ca 2.5 mi E of Occidental Comment
  JEPS95229  Arctostaphylos stanfordiana subsp. decumbens Stephen W. Edwards 1990-12-10 Sonoma Rincon Ridge, summit Comment
  RSA364258  Arctostaphylos stanfordiana subsp. stanfordiana Roger Raiche 1983-9-25 RR- 30733 Sonoma Clipper Mill Bridge, Stewarts Point Road (2.6 miles east on that road from Highway 1). Comment
  UC909827  Arctostaphylos uva-ursi J. E. Adams 1934-3-28 740 Sonoma s McNamees Store Comment
  HSC100101  Arctostaphylos viscida J. P. Smith, & J. O. Sawyer 2010-4-26 12720 Sonoma 641 Comment
  HSC7741  Arctostaphylos viscida P. J. Zinke 1949-6-19 63 Sonoma Divide between Smith and Dry Creek 457 Comment
  SEINET11989677  Arctostaphylos viscida Unknown 1982-1 20656 Sonoma East Austin Creek State Park, nr intersection of Gilliam Creek & Schoolhouse Creek along old mine rd Comment
  CAS-BOT-BC400488  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
  CAS-BOT-BC400489  Aristolochia californica John Thomas Howell 1934-2-22 11733 Sonoma Santa Rosa Comment
  HSC3260  Aristolochia californica James Faro 1962-4-22 5 Sonoma S side of Lake Ralphine in Santa Rosa Comment
  CAS-BOT-BC64582  Armeria maritima subsp. californica Alice Eastwood; John Thomas Howell 1939-4-2 7372 Sonoma Coast n. of Bodega Bay. Comment
  UCD98503  Armeria maritima subsp. californica Ross Swenerton 1966-4-16 22 Sonoma On hill overlooking ocean, Duncan's Landing. 15 Comment
  UC573782  Arrhenatherum elatius H. S. Yates 1937-5-30 6557 Sonoma 1 1/2 mi n of Freeestone 91 Comment
  CAS-BOT-BC173847  Artemisia Peter Rubtzoff 1951-9-3 731 Sonoma Vacation Beach, near Guerneville. Comment
  CAS-BOT-BC90488  Artemisia douglasiana G. DeNevers 1981-9-12 1840 Sonoma Pepperwood Ranch. In Leslie Creek, near its confluence with Mark West Creek Comment
  SD41469  Artemisia douglasiana Edith A. Purer 1932-7-24 Sonoma Near Bodega Bay Comment
  RSA552336  Artemisia douglasiana L. M. Shultz, John Shultz 1986-9-20 10236 Sonoma 1 mile north of Jenner along Pacific Coast Highway 6 Comment
Read comments
May 14 2013
  UCSB15414  Artemisia pycnocephala Breedlove, Dennis 1961-12-31 Sonoma At mouth of Russian River 3 Comment
  HSC100846  Arundo donax J. P. Smith, J. O. Sawyer, & R. J. Cole 2009-10-8 12690 Sonoma Hop Kiln Winery. Comment
  UC730026  Asarum caudatum Leo F. Koch 1940-4-16 788 Sonoma Near road at east entrance to Coleman Valley West of Occidental Comment
  UC6177  Asarum caudatum Dr. Lorini Jun 1896 Sonoma Mount St. Helena Comment
  UC1197607  Asclepias fascicularis Joseph P. Tracy 1937-8-28 15678 Sonoma Knights Valley; North Coast Ranges 152 Comment
  JEPS101708  Asclepias solanoana Dean W. Taylor 1997-5-7 15985 Sonoma The Cedars, headwaters Austin Creek 563 Comment
  CAS-BOT-BC478541  Asparagus officinalis Peter Rubtzoff 1951-9-15 766 Sonoma Pitkin Marsh, near Forestville Comment
  JEPS128365  Aspidotis californica Roger Raiche 2009-4-30 029 .09 Sonoma The Cedars. Lower Russian River, East Austin Creek watershed. Comment
  RSA164631  Aspidotis densa P. C. Everett 1963-11-21 24565 Sonoma Harrison Grade, northeast of Occidental. 76 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-BC186822  Astragalus gambelianus John Thomas Howell 1931-4-19 6433 Sonoma Spring Mountain Road, 7.5 miles from St. Helena Comment
  OBI49330  Astragalus gambelianus Michener & Bioletti, Bioletti June1893 s.n. Sonoma Sonoma, Hood's Peak Comment
  UC1299654  Athysanus pusillus Freed Hoffman 1947-2-28 610 Sonoma near. headwaters of Gilliam Creek Guerneville; North Coast Ranges, Gilliam Creek Comment
  CAS-BOT-BC290670  Atriplex Peter Rubtzoff 1958-9-6 3974 Sonoma Laguna de Santa Rosa, north of Cunningham (near Todd Road). Comment
  UCD163888  Avena Peter Rubtzoff 1980-5-26 9450 Sonoma Forest Hills, 5.5 mi. east of Guerneville. Russian River. Comment
  CHSC79392  Avena barbata Beecher Crampton 1956-3-13 3227 Sonoma Asti. In vineyard and along the road. Comment
  CAS-BOT-BC68343  Azolla filiculoides Peter Rubtzoff 1955-4-30 1812 Sonoma Forestville Marsh Comment
  SD254556  Azolla filiculoides Ann Howald, Christina Freeman 2015-1-1 3411 Sonoma Inner North Coast Ranges: Annadel State Park, Ledson Marsh, northwest corner, south of Marsh Trail (Kenwood 7.5'Q) 362 Comment
  CAS-BOT-BC98603  Baccharis douglasii John Thomas Howell 1945-8-14 21398 Sonoma Perry Marsh Comment
  RSA783715  Baccharis douglasii Peter Rubtzoff 1955-9-24 2148 Sonoma Duncan Mills Marsh Comment
  UCD148380  Baccharis glutinosa Peter Rubtzoff 1955-9-10 2129 Sonoma Guerneville Marsh. Comment
  UCR30559  Baccharis glutinosa John C. Roos 1948-8-28 3959 Sonoma North Coast Ranges, near Healdsburg 31 Comment
  CAS-BOT-BC99590  Baccharis pilularis Carl B. Wolf; E. R. Johnson 1934-10-13 6182 Sonoma 2 4/10 mi. no. of mouth of Russian River 60 Comment
  CAS-BOT-BC99591  Baccharis pilularis Carl B. Wolf; E. R. Johnson 1934-10-13 6181 Sonoma 2 4/10 mi. no. of mouth of Russian River 60 Comment
  UC336247  Baccharis salicifolia subsp. salicifolia H. T. Edwards 1877-5-1 321 Sonoma Knights Valley Comment
  CAS-BOT-BC344920  Barbarea Peter Rubtzoff 1989-6-10 10002 Sonoma Along Russian River, ca. 6 miles east of Guerneville, at 9850 River Road. Comment
  CAS-BOT-BC320536  Beckmannia Peter Rubtzoff 1970-6-14 6263 Sonoma Marsh on River Road, ca. 3 miles west of Fulton. Comment
  CAS-BOT-BC145837  Beckmannia syzigachne Peter Rubtzoff 1958-7-5 3740 Sonoma Atascadero Creek Marsh. Comment
  CDA13125  Beckmannia syzigachne G. F. Hrusa, R. Gross 1996-6-3 13060 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
  RSA13556  Beckmannia syzigachne H. P. Bracelin 1930-7-27 20 Sonoma One mile N. of Fort Ross. Comment
  RSA227241  Beckmannia syzigachne Peter Rubtzoff 1958-5-10 3645 Sonoma Laguna de Santa Rosa east of Cunningham, near Llano Road. Comment
  SBBG57110  Beckmannia syzigachne A. A. Heller 1902-6-7 5650 Sonoma Bennet Valley, SE of Santa Rosa Comment
  UC573779  Beckmannia syzigachne H. S. Yates 1937-6-5 6576 Sonoma near Wildwood; Santa Rosa Quadrangle 121 Comment
  CAS-BOT-BC106389  Bellis perennis L. R. Abrams 1920-7-3 7597 Sonoma Gualala River 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
  CAS-BOT-BC164688  Bidens cernua Peter Rubtzoff; Nancy Harrison; Edward Lee; Kenneth Stocking 1979-7-21 9293 Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC102005  Bidens frondosa John Thomas Howell 1946-8-17 22849 Sonoma The Laguna north of Sebastopol Comment
  UC727762  Bidens frondosa Milo S. Baker 1946-8-17 11560 Sonoma at the crossing of the Occidental Road (The Laguna); The Laguna Comment
  UCR248952  Bidens laevis Peter Rubtzoff 1967-8-30 5874 Sonoma Pitkin Marsh, near Forestville. Southern part of Upper Marsh 38 Comment
  UCR249043  Bidens laevis Peter Rubtzoff 1963-10-30 5300 Sonoma Bodega Head Marsh 2 Comment
  JEPS86324  Blennosperma bakeri Jack and Betty Guggolz 1988-2-18 900 Sonoma Kovatch property Comment
  JEPS86325  Blennosperma bakeri Jack and Betty Guggolz 1988-2-23 901 Sonoma Kovatch property, n side of San Miguel Road, 1/10 m w of Walzer Rd Comment
  UC1250299  Blennosperma bakeri Robin W. Thorp 1964-3-15 Sonoma about 5 mi s of El Verano Comment
  CAS-BOT-BC100253  Blennosperma bakeri Rimo Bacigalupi; R. Ornduff; L. Heckard 1964-3-25 8924 Sonoma In pastures along (east of) Arnold Drive, 0.7 mile north of its junction with State Highway 37, south of Sonoma 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
  CAS-BOT-BC164674  Boisduvalia Peter Rubtzoff 1972-4-23 6731 Sonoma 4.25 miles W of Glen Ellen on Bennett Valley Road. Comment
  CDA19901  Boykinia occidentalis R. Gross 2002-6-11 s.n. Sonoma Northern California; Trout farm on NW side of Mt St Helena. 0 Comment
  RSA239698  Briza maxima Larry E. DeBuhr, Gary D. Wallace 1973-5-18 1096 Sonoma Pitkin-Jones Tree Farm. On Vine Hill Rd 1.3 miles N of jct with Gurneyville Rd. W of Santa Rosa. Comment
  RSA47576  Briza maxima L. Beane, Lois E. James 1949-5-16 1949 Sonoma About 3 mi. S. of Cloverdale Comment
  RSA633342  Briza maxima Michael A. Vincent, Ethan H. Freid 1997-11-14 8172 Sonoma Bodega Bay, 0.5 mile northeast of city limits along Rt. 1 Comment
  SEINET4182955 Image available Briza maxima Ira L. Wiggins, R. S. Ferris 1943-4-30 10165 Sonoma Roadside 0.5 Mile South of Asti, along Highway 101. Comment
  SJSU810  Briza maxima A. W. Jacobs 1943-5-15 Sonoma near Forestville Comment
Read comments
Sep 17 2008
  UC727686  Briza maxima Milo S. Baker 1946-5-13 11389 Sonoma near Vine Hill School House Comment
  UCD36534  Briza maxima Beecher Crampton 1954-4-26 1790 Sonoma Sonoma County, 9 miles southeast of Geyserville, along Highway 128, 0.5 mile north of Calistoga Road cutoff, on foothills facing Alexander Valley. Comment
  UCD57147  Briza maxima C. Wistrom 1996-5-26 35 Sonoma Healdsburg. 1601 Dry Creek Road. 48 Comment
  UCD57148  Briza maxima B. Crampton 1955-6-17 2968 Sonoma Along State Hwy. 1. Fort Ross. Comment
  UCR222353  Briza maxima George K. Helmkamp, E. A. Helmkamp 2010-6-4 16231 Sonoma North Coast Ranges, Mark West Springs Road (Porter Creek Rd.), 6.4 rd. miles east of its junction with US-101, 5.9 air mi. east (88 deg. ) of Windsor 155 Comment
  CAS-BOT-BC145485  Briza maxima David L. Morgan 1956-5-23 s.n. Sonoma Hill Road, 2 miles southwest of junction with Highway #1. Comment
  SEINET10861606  Briza maxima Jon Ricketson, Deanna Vanderbur 1985-7-3 Ricketson 2619 Sonoma Fort Ross State Park, along State Highwa 1, between Fort Ross and Jenner above Pacific Ocean. 50 miles northwest of San Francisco. 30 Comment
  POM204989  Briza minor Michiner, Bioletti 1893-06 s.n. Sonoma Kenwood 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
  RSA22248  Briza minor Leo Koch 1938-4-21 82 Sonoma Hayfield along Redwood Highway about four miles north of Santa Rosa Comment
  CAS-BOT-BC132209  Brodiaea californica var. leptandra Milo S. Baker 1925-1-1 234 local Sonoma Adobe [Canon] Canyon above Kenwood Sps. Comment
  SEINET12049784  Brodiaea elegans F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -186 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Road 630 Comment
  UCD139132  Brodiaea elegans subsp. elegans Frederica Bowcutt 1994-6-12 1847 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 about 35 yards, N of Adobe Canyon Rd. about 20 ft. Trail head for Pony Gate trail near kiosk and visitor center. 411 Comment
  CAS-BOT-BC484396  Brodiaea elegans subsp. elegans Peter Rubtzoff 1962-6-19 4931 Sonoma Occidental Marsh Comment
  JEPS5691  Brodiaea leptandra W. L. Jepson 1918-6-23 7657 Sonoma Poor Man's Flat Windsor Comment
  SEINET206246  Brodiaea stellaris Rimo Bacigalupi, L. R. Heckard 1961-6-9 7746 Sonoma Along Stoeti Lane about 0.5 mile northwest of its junction with Harrison Grade road and about 0.75 mile northwest of O 229 Comment
  CAS-BOT-BC486467  Brodiaea terrestris subsp. terrestris Mark Okada 1971-6-10 s.n. Sonoma Route ] , 3miles south of Gualala Comment
  SBBG33935  Bromus carinatus L. S. Rose 1962-4-18 62024 Sonoma 1 mi NW of Freestone 76 Comment
  UCD58202  Bromus carinatus A. A. Beetle; G. L. Stebbins Jr. 1942-6-4 3564 Sonoma 10.2 miles northeast of Santa Rosa on road to Calistoga. Comment
  CAS-BOT-BC149088  Bromus carinatus var. carinatus John H. Thomas 1976-6-16 18343 Sonoma Southern part of Sea Ranch, northwestern part of county, about 7 miles south of Gualala. 30 Comment
  UC573764  Bromus carinatus var. carinatus H. S. Yates 1937-5-30 6556 Sonoma 2 mi nw of Freestone 91 Comment
  CAS-BOT-BC155955  Bromus commutatus John Thomas Howell 1947-6-26 23305 Sonoma Cunningham Marsh. Comment
  UCD58474  Bromus commutatus B. Crampton 1955-5-8 2820 Sonoma Hwy. 128. Alexander Valley. Comment
  CAS-BOT-BC155659  Bromus diandrus G. DeNevers 1981-4-20 748 Sonoma Pepperwood Ranch. Top of Horse Hill. Pippindale farm. Comment
  JEPS71167  Bromus diandrus Virginia Bufford 1932-9-23 575 Sonoma 4 mi sw of Santa Rosa 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
  LA13805  Bromus diandrus Joseph Andorfer Ewan; 1935-5-12 9222 Sonoma Bodega Bay road 2 mi. W of Bodega Comment
  CAS-BOT-BC155203  Bromus hordeaceus Peter Rubtzoff 1958-5-10 3640 A Sonoma Lagunda de Santa Rosa east of Cunningham (near Llano Road). Comment
  CAS-BOT-BC155213  Bromus hordeaceus Mary P. Wells 1984-4-23 190 Sonoma Rincon Valley, Santa Rosa. 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
  UCD144423  Bromus laevipes Frederica Bowcutt; Jeff Kennedy (Det.) and Jolie Hendricks 1994-5-1 1752 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
  UCD58888  Bromus laevipes H. S. Yates 1937-5-30 6543 Sonoma 3 miles WNW of Graton. 60 Comment
  UCD59060  Bromus orcuttianus Gerry North 1993-4 3 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood, and 18 air miles NW of Napa. At Goodspeed trailhead pullout. On bank edge above Sonoma Creek. 213 Comment
  JEPS121157  Bromus pseudolaevipes Lowell Ahart, John Dittes, Josephine Guardino, Dr. Marge Anthony 2013-4-25 18587 Sonoma 0.7 air miles E of Pacific Ocean, 0.8 air miles W of Gualala River. Comment
  JEPS116506  Bromus pseudolaevipes Peter Warner 2009-6-3 112 Sonoma Poff Ranch, along N unfenced boundary, adjacent to or on Willow Creek (Calif. State Parks property), upper east Pomo Canyon, on logging road-cut 173 Comment
  RSA656751  Bromus racemosus Beecher Crampton 1956-4-24 3309 Sonoma Healdsberg, vacant lot at junction of Prince and Sherman Streets. Comment
  UC121247  Bromus secalinus H. S. Nichols June 1890 Sonoma Healdsburg Comment
  CAS-BOT-BC161585  Bromus sterilis John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary P. Wells 1981-5-14 53965 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-BC161520  Bromus tectorum John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary P. Wells 1981-5-14 53990 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-BC185423  Bromus vulgaris P. B. Kennedy 1915-5-31 s.n. Sonoma Stewart Point. Annapolis. Comment
  UCR141958  Bromus vulgaris Beecher Crampton 1955-6-17 2928 Sonoma North Coast Range, 1.6 miles west of Forestville, along State Highway 116 ['12'] 61 Comment
  UCD114959  Cakile maritima Helen K. Sharsmith 1963-5-25 5499 Sonoma Sand dunes just south of Bodega Harbor. 1 Comment
  UCR254899  Calamagrostis Peter Rubtzoff 1967-8-22 5856 Sonoma Southeast of lower Salmon Creek Marsh 4 Comment
  UC1779151  Calamagrostis bolanderi Barbara L. Wilson, Sami Gray 1997-7-31 8900 Sonoma Sea Ranch; Big Tree loop trail, which originates between unites [sic] 27A and 29A off Timber Ridge Road, off Deerfield Loop, off Hwy 1 170 Comment
  RSA0056432  Calamagrostis bolanderi Greg de Nevers 1996-6-17 10831 Sonoma CYO Camp south of Occidental on Bohemian Highway. 121 Comment
  CAS-BOT-BC185129  Calamagrostis nutkaensis Peter Rubtzoff 1963-8-17 5228 Sonoma Russian River Mouth Marsh. Comment
  UCD57517  Calamagrostis nutkaensis Alan A. Beetle 1945-8-4 4012 Sonoma 10 miles north of Fort Ross. Comment
  UCD57526  Calamagrostis nutkaensis Beecher Crampton 1957-7-22 4384 Sonoma State Hwy. 1, 8.7 miles south of Stewart's Point. Comment
  CAS-BOT-BC185118  Calamagrostis ophitidis Roxana S. Ferris; Laura Lorraine 1961-6-15 3563 Sonoma Harrison Grade, 1.3 mile from junction with Green Valley Road. Comment
  CAS-BOT-BC361342  Calandrinia breweri Greg de Nevers 1997-4-24 10970 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  RSA0065162  Calandrinia breweri Greg de Nevers 1997-4-24 10970 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 100 Comment
  CAS-BOT-BC438608  Calandrinia ciliata G. DeNevers 1982-3-28 1937 Sonoma Pepperwood Ranch. Across the pasture from the barn at Pepperwood. Comment
  UCD144659  Calandrinia ciliata Frederica Bowcutt 1996-3-24 2080 Sonoma Sugarloaf Ridge State Park; about 50 air miles north of San Francisco, 10 air miles east of Santa Rosa, 2.5 air miles northeast of Kenwood and 18 air miles northwest of Napa. About 1/2 air miles S of Red Mtn, along Vista Trail. 563 Comment
  CAS-BOT-BC273246  Calendula arvensis John Thomas Howell 1954-4-1 29138 Sonoma Along highway just east of Shellville Comment
  RSA99617  Calendula arvensis J. T. Howell 1954-4-1 29138 Sonoma Just east of Shellville. Comment
  SFV12200  Calendula arvensis W. R. Russell 1967-3-28 s. n. Sonoma Sonoma. At roadside near cemetary at north end of town. Comment
  UCR249086  Callitriche Peter Rubtzoff 1969-5-16 6050 Sonoma Guerneville Marsh, eastern part of marsh in Pocket Canyon Comment
  CAS-BOT-BC290710  Callitriche heterophylla Peter Rubtzoff 1967-5-21 5843 Sonoma Guerneville Marsh. Comment
  UC1197699  Calochortus amabilis Joseph P. Tracy 1933-5-1 12126 Sonoma Knights Valley Mayacama Creek 152 Comment
  CAS-BOT-BC483275  Calochortus amabilis F. F. Wood 1918-4-25 s.n. Sonoma Cazadero Comment
  CAS-BOT-BC483280  Calochortus amabilis Aven Nelson; Ruth A. Nelson 1933-5-14 557 Sonoma Kenwood Comment
  CAS-BOT-BC492641  Calochortus luteus Volney Rattan 1885-5-9 s.n. Sonoma Sonoma Creek Comment
  RSA491702  Calochortus luteus James L. Reveal 1987-6-7 6412 Sonoma Along Cavedale Road, about 1.5 mile south of Trinity Road, about 13 airline miles southeast of Santa Rosa 579 Comment
  JEPS82316  Calochortus raichei Roger Raiche 1983-7-10 30490 Sonoma n of Greenville (e end of ridge of Rocky Mt, and w of Blue Rock, above Gray Creek to s and Devil Creek to n); Rocky Mt. 365 Comment
  CAS-BOT-BC494036  Calochortus tolmiei Mary P. Wells 1972-4-22 s.n. Sonoma On mound on Lot 10, unit15 near the cliff, The sea Ranch Comment
  CAS-BOT-BC132636  Calochortus uniflorus John Thomas Howell 1947-6-26 s.n. Sonoma Cunningham Marsh Comment
  UC65044  Calochortus uniflorus Milo S. Baker 1898-4-5 Sonoma between Stewarts Point Sea View Comment
  UCR255747  Calochortus uniflorus Greg de Nevers 1996-4-18 10791 Sonoma North Coast Range, Knights Valley Marsh, on Bavarian Lion Ranch 137 Comment
  CAS-BOT-BC270710  Calycadenia multiglandulosa David D. Keck 1933-11-6 2648 Sonoma 2.5 miles N of Occidental Comment
  UC762559  Calycadenia multiglandulosa R. F. Hoover 1938-6-14 3610 Sonoma 3 mi w, on road to Occidental Graton Comment
  RSA93402  Calycadenia multiglandulosa subsp. cephalotes Milo S. Baker 1932-6-9 6000 Sonoma 1 mile east of Occidental Comment
  CAS-BOT-BC270842  Calycadenia pauciflora Gerald D. Carr 1971-8-17 640 Sonoma The Geysers 487 Comment
  UCD129978  Calycadenia truncata G. F. Hrusa; T. D. Wilfred 1995-12-3 12482 Sonoma Foote Ranch Property at NW base of Mt. St. Helena. Immediately below west base of Chalk Mountain. 500 Comment
  CAS-BOT-BC90994  Calycanthus occidentalis Peter Rubtzoff 1987-7-18 9798 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  POM194538  Calycanthus occidentalis Y. Mexia 1929-6-2 2397 Sonoma Near Santa Rosa. Comment
  RSA456158  Calycanthus occidentalis Christopher Davidson 1977-6-17 5883 Sonoma State Hwy 12, ca. 3 mi. W of Guerneville. Along Russian River. 15 Comment
  UC854800  Calycanthus occidentalis Eliz. Parsons Hawver 1915-6-3 Sonoma Skaggs Springs Comment
  SEINET8565825 Image available Calycanthus occidentalis S. L. G. 1892-1 2919 Sonoma Comment
  JEPS64301  Calypso bulbosa Docia Patchett 1917-3-29 Sonoma Cazadero Comment
  UC1134726  Calypso bulbosa E. Armstrong 1934-3-26 944 Sonoma 2 mi sw of Camp Meeker 121 Comment
  UC1140871  Calypso bulbosa R. M. and A. Tryon 1958-3-9 Sonoma 1 mi w of Cazadero (on road to Fort Ross) Comment
  RSA0059767  Calystegia D. F. Howe 1969-5-28 s.n. Sonoma 13.5 miles north of Jenner on Highway 1. Comment
  UCD126065  Calystegia collina Jennifer Bury; Peggy Herzog 1993-5-8 275 Sonoma About 40 air miles N of San Francisco; about 11 air miles E of Santa Rosa and 2.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge and S of Red Mtn 1 mile. Near visitor center. 396 Comment
  UCD126064  Calystegia collina Erik Beever 1993-5-8 213 Sonoma Sugarloaf Ridge State Park, about 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood, and 18 air miles NW of Napa. Ponygate Trail at disturbed trailhead. 365 Comment
  RSA0059882  Calystegia collina subsp. oxyphylla Milo S. Baker 1898-6-11 648 Sonoma Little Sulphur Creek. Comment
  CAS-BOT-BC224742  Calystegia purpurata subsp. saxicola John Thomas Howell 1930-6-8 5290 Sonoma 8.5 miles n. of Bodega Bay Comment
  RSA710253  Calystegia purpurata subsp. saxicola R. K. Brummitt 1997-6-10 19682 Sonoma 1 km S of Sereno Del Mar, just S of Schoolhouse Beach 15 Comment
Read comments
Mar 15 2013
  SD225766  Calystegia purpurata subsp. saxicola R. K. Brummitt 1997-6-10 19682 Sonoma 1 km S of Sereno Del Mar, just S of Schoolhouse Beach; on to of small sea headland by path down to beach 14 Comment
  SDSU5665  Calystegia purpurata subsp. saxicola D. F. Howe 1969-5-28 4011 Sonoma 13.5 miles north of Jenner on #1. Comment
  JEPS128289  Calystegia subacaulis Roger Raiche 2008-5-18 005 .08 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UC1299583  Calystegia subacaulis Freed W. Hoffman 1947-6-4 527 Sonoma North Coast Ranges. East Austin Creek . Comment
  CAS-BOT-BC344885  Camassia Peter Rubtzoff 1970-5-10 6214 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  UCD138333  Camassia quamash subsp. linearis P. B. Kennedy 1919-5-16 s.n. Sonoma Del Mar. Comment
  CAS-BOT-BC498777  Camassia quamash subsp. linearis J. W. Congdon 1880-5-16 s.n. Sonoma Sebastopal Road, Mariposa Comment
  CAS-BOT-BC498782  Camassia quamash subsp. linearis Peter Rubtzoff 1952-5-10 1030 Sonoma Lower part of the Upper Marsh; The Pitkin Marsh, near Forestville Comment
  RSA186808  Camissonia cheiranthifolia subsp. cheiranthifolia Peter H. Raven 1963-4-28 18247 Sonoma between town of Bodega and Bodega Head. Comment
  RSA29336  Camissonia cheiranthifolia subsp. cheiranthifolia E. K. Balls 1953-10-9 18597 Sonoma South end of Doran Park, Bodega Bay, Hwy 1 3 Comment
  CAS-BOT-BC266420  Campanula californica Herbert L. Mason 1946-7-4 12894 Sonoma Pitkin Marsh, between Santa Rosa and Forestville Comment
  SEINET10463919  Campanula californica Sutcliffe 1920-7-18 SUTCLIFFE s.n. Sonoma ANAPOLIS Comment
  JEPS128369  Campanula griffinii Roger Raiche 2010-6-16 024 .10 Sonoma The Cedars. Peak Fork at Pygmy Fork, Mineral Spring Canyon. Bearpen Creek watershed (CalWater # 1114.120002). Comment
  CAS-BOT-BC37758  Cardamine californica A. A. Heller; H. E. Brown 1902-3-17 5088 Sonoma Hills 8 miles northeast of Santa Rosa. Comment
  CAS-BOT-BC37760  Cardamine californica A. A. Heller; H. E. Brown 1902-3-22 5130 Sonoma West of Sebastapol. Comment
  CAS-BOT-BC37761  Cardamine californica Milo S. Baker 1924-4-27 Local 104 c-24 Sonoma Coopers Grove. Comment
  CAS-BOT-BC37777  Cardamine californica L. R. Abrams 1918-4-27 6910 Sonoma Independence School near Healdsburg. Comment
  CAS-BOT-BC37771  Cardamine californica John H. Thomas 1966-3-22 11535 Sonoma About 2.7 miles from Sebastapol toward Santa Rosa along Highway 12. Comment
  CAS-BOT-BC37772  Cardamine californica Mrs. H. C. Cantelow 1937-3-25 s.n. Sonoma Near Valley Ford. Comment
  CAS-BOT-BC37775  Cardamine californica Frank Walton Gould 1940-2-18 866 Sonoma Two miles north of Petaluma. 30 Comment
  UCD114539  Cardamine oligosperma Frederica Bowcutt 1994-5-1 1757 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. Along Sonoma Creek, just E of Bear Creek near bridge over Sonoma Creek. On Goodspeed Trail about 30 yards from trail head; along Sonoma Creek. 198 Comment
  CAS-BOT-BC38036  Cardamine oligosperma G. DeNevers 1981-3-30 583 Sonoma Pepperwood Ranch. At Garrison House. Comment
  CAS-BOT-BC173680  Carduus Peter Rubtzoff 1960-5-15 4327 Sonoma Fife Creek Marsh. Comment
  CAS-BOT-BC282949  Carduus acanthoides Greg de Nevers 1991-9-16 9771 Sonoma Pepperwood Natural Preserve. 3450 Franz Valley Road, on ridge above Bechtel house 475 Comment
  CAS-BOT-BC422340  Carex Peter Rubtzoff; Betty Lovell 1975-8-11 8313 Sonoma Kenwood Marsh. Comment
  UCR254736  Carex abrupta Peter Rubtzoff 1958-5-17 3658 Sonoma Laguna de Santa Rosa north of Sebastopol, near Occidental Road 18 Comment
  CAS-BOT-BC334521  Carex abrupta Peter Rubtzoff 1957-6-28 3375 Sonoma Duncans Mills Marsh. Comment
  UC1147813  Carex athrostachya J. W. Stacey 1937-6-6 13018 Sonoma Sebastopol Comment
  UCR248933  Carex athrostachya Peter Rubtzoff, Nancy Harrison 1974-7-13 7681 Sonoma Upper Green Valley Marsh Comment
  RSA0022355  Carex athrostachya Peter Rubtzoff 1970-6-14 6260 Sonoma On River Road about 3 miles W of Fulton. Comment
  UCD112452  Carex athrostachya Peter Rubtzoff 1960-5-29 4426 Sonoma Laguna de Santa Rosa near Trenton (south of Woolsey Rd.) Comment
  CAS-BOT-BC328120  Carex barbarae Peter Rubtzoff 1974-6-2 7512 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC329310  Carex barbarae Peter Rubtzoff 1975-7-3 8153 Sonoma Kenwood Marsh. Comment
  RSA295078  Carex barbarae Robert A. Norris, John L. Inase, Allen Nakagawa 1981-6-27 4209 Sonoma Trenton Rd., by the Boriolo Ranch, just S of and paralleling River Rd., approx. halfway between Guerneville and Santa Rosa. (Near N part of Laguna de Santa Rosa). 15 Comment
  UCR249076  Carex bolanderi Peter Rubtzoff 1954-8-2 1621 Sonoma Duncan Mills Marsh, upper portion of marsh 2 Comment
  SEINET7552671 Image available Carex brevicaulis John Thomas Howell 1955-6-2 30258 Sonoma Near Vine Hill school Comment
  CAS-BOT-BC110183  Carex buxbaumii Peter Rubtzoff 1951-6-7 129 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh. Comment
  CAS-BOT-BC350936  Carex cusickii Peter Rubtzoff 1958-5-17 3678 Sonoma Laguna de Santa Rosa, east of Cunningham (near Llano Road). Comment
  CAS-BOT-BC350940  Carex cusickii Peter Rubtzoff 1962-5-25 4841 Sonoma Laguna de Santa Rosa area northeast of Graton, near the Laguna Road. Comment
  CAS-BOT-BC20240  Carex densa Peter Rubtzoff 1975-7-3 8150 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC20488  Carex densa G. DeNevers 1981-6-15 1549 Sonoma Pepperwood Ranch. At Rogers Apple Orchard. Comment
  CAS-BOT-BC20498  Carex densa Peter Rubtzoff 1955-4-30 1795 Sonoma Sonoma County Marshes. Stony Point Marsh. Comment
  CAS-BOT-BC242639  Carex densa Peter Rubtzoff 1957-5-11 3338 Sonoma Occidental Marsh Comment
  CAS-BOT-BC20241  Carex densa Peter Rubtzoff 1968-6-25 5901 Sonoma Lichau Marsh. Comment
  UCD140271  Carex densa G. F. Hrusa; A. Buckman, R. Gross 1995-4-1 12031 Sonoma Todd Road Reserve, near corner Todd Road and Llano Road. Comment
  UCR250041  Carex exsiccata Peter Rubtzoff 1955-6-26 1906 Sonoma Duncan Mills Marsh, lower portion of marsh 2 Comment
  CAS-BOT-BC329291  Carex exsiccata Peter Rubtzoff 1954-7-4 1535 Sonoma Duncans Mills Marsh, upper portion of the marsh. Comment
  UC727688  Carex feta Milo S. Baker 1946-5-13 11391 Sonoma s end of Pitkin Marsh Vine Hill Region Comment
  UCR198235  Carex globosa Dean Kelch 2007-5-13 07 .298 Sonoma Bouverie Preserve; east of Hwy 12 near Glen Ellen 110 Comment
  CAS-BOT-BC20453  Carex globosa Peter Rubtzoff 1953-5-18 1400 Sonoma South of Guernville (Neeley Hill area). Comment
  SEINET10706382  Carex glomerata Henry N. Bolander Bolander 3824 Sonoma In meadow at Cloverdale. Comment
  CAS-BOT-BC28360  Carex gracilior Peter Rubtzoff 1951-6-9 179 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh. Comment
  CAS-BOT-BC28361  Carex gracilior Peter Rubtzoff 1951-6-7 148 Sonoma Pitkin Marsh, near Forestville. Eastern branch of the Upper marsh. Comment
  CAS-BOT-BC28365  Carex gracilior Peter Rubtzoff 1955-4-30 1794 Sonoma Stony Point Marsh Comment
  CAS-BOT-BC28375  Carex gracilior John Thomas Howell 1947-6-5 23238 Sonoma Cunningham Marsh. Comment
  RSA52337  Carex gracilior J. T. Howell 1947-6-5 23238 Sonoma Cunningham Marsh Comment
  UCD112363  Carex gracilior Peter Rubtzoff 1954-7-5 1543 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC28332  Carex gracilior Henry Nicholas Bolander 1864-4-1 3822 a Sonoma Meadow at Cloverdale. Comment
  CAS-BOT-BC28335  Carex gracilior Henry Nicholas Bolander 1864-4-1 3814 Sonoma Meadow near Mark West Creek. Comment
  CAS-BOT-BC28372  Carex gracilior Alice Eastwood; John Thomas Howell 1936-5-19 2499 Sonoma North Limits of Santa Rosa. Comment
  CAS-BOT-BC331477  Carex gynodynama Peter Rubtzoff 1964-5-20 5317 Sonoma Brooks Gulch Marsh. Comment
  RSA758131  Carex harfordii Peter Rubtzoff 1954-6-20 1499 Sonoma Guerneville Marsh Comment
  CAS-BOT-BC21912  Carex harfordii Peter Rubtzoff 1951-6-9 166 Sonoma The Pitkin Marsh, near Forestville. A damp opening south of the upper marsh. Comment
  CAS-BOT-BC22297  Carex hassei Alice Eastwood; John Thomas Howell; J. W. Stacey 1937-5-31 4496 Sonoma 2 miles south of Gualala River, Sonoma Coast. Comment
  CAS-BOT-BC419698  Carex hendersonii Peter Rubtzoff 1960-5-16 4360 Sonoma Duncans Mills Marsh. Comment
  SEINET10647589  Carex hookeriana A. Arthur Heller 1902-4-17 Heller 5324 Sonoma Santa Rosa. Comment
  CAS-BOT-BC31178  Carex lemmonii Peter Rubtzoff 1951-6-16 235 Sonoma Pitkin Marsh, near Forestville. Lower part of the Upper Marsh. Comment
  OBI22652  Carex lemmonii Robert F. Hoover 1939-5-30 4111 Sonoma Perry's "Twin Pines Ranch" near Sebastopol Comment
  CAS-BOT-BC31429  Carex leptopoda Lewis S. Rose 1964-6-3 64051 Sonoma N end of Bodega Bay swamp. 1 Comment
  CAS-BOT-BC329277  Carex leptopoda Peter Rubtzoff 1964-6-24 5374 Sonoma Lower Salmon Creek Marsh. Comment
  CAS-BOT-BC329300  Carex leptopoda Peter Rubtzoff 1960-5-16 4347 Sonoma Duncans Mills Marsh. Comment
  UCR248866  Carex leptopoda Peter Rubtzoff 1960-5-16 4347 Sonoma Duncan Mills Marsh 2 Comment
  CAS-BOT-BC119731  Carex nebrascensis John Thomas Howell 1945-8-14 21411 Sonoma Perry Marsh. Comment
  UCD140692  Carex nudata Frederic Hrusa 1988-2-21 5500 Sonoma Sugarloaf Ridge State Park. Upper end of main valley in moist area along creek. 400 Comment
  CAS-BOT-BC119310  Carex obnupta Mary P. Wells 1981-8-2 s.n. Sonoma S end of Timber Ridge Road, The Sea Ranch. Comment
  RSA0025208  Carex obnupta Peter Rubtzoff 1960-5-20 4394 Sonoma Laguna de Santa Rosa east of Graton, between Occidentalis and Guerneville roads. Comment
  CAS-BOT-BC119282  Carex ovalis Peter Rubtzoff 1958-6-1 3702 Sonoma Laguna de Santa Rosa E of Cunningham near Llano Road. Comment
  CAS-BOT-BC119286  Carex ovalis John Thomas Howell; J. W. Stacey 1937-6-6 13038 Sonoma Pitkin Marsh. Comment
  CAS-BOT-BC119249  Carex pachystachya Lewis Samuel Rose 1962-6-1 62065 Sonoma Freestone Comment
  RSA0022349  Carex pachystachya Peter Rubtzoff 1974-6-2 7504 Sonoma Upper Green Valley Marsh. Comment
  RSA0022359  Carex pachystachya Peter Rubtzoff 1964-5-20 5316 Sonoma Brooks Gulch Marsh. Comment
  CAS-BOT-BC118942  Carex pellita John Thomas Howell; J. W. Stacey 1937-6-6 13041 Sonoma Pitkin Marsh Comment
  SEINET7570933 Image available Carex pellita John Thomas Howell, J. W. Stacey 1937-6-6 13041 Sonoma Pitkin Marsh. Comment
  CAS-BOT-BC117672  Carex serratodens Gregory Clark de Nevers 1987-4-25 8164 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Rd. 400 Comment
  CAS-BOT-BC329282  Carex stipata Peter Rubtzoff 1960-5-22 4410 Sonoma Laguna de Santa Rosa area east of Graton (between Occidental and Guerneville roads). Comment
  CAS-BOT-BC117356  Carex stipata var. stipata Peter Rubtzoff 1951-6-10 190 Sonoma Pitkin Marsh, near Forestville. Northern half of Lower Marsh. Comment
  CAS-BOT-BC249294  Carex subbracteata Peter Rubtzoff 1959-6-13 4124 Sonoma Willow Creek Marsh Comment
  UCR208531  Carex subbracteata Peter Rubtzoff 1959-6-13 4124 Sonoma Willow Creek Marsh 9 Comment
  RSA0022361  Carex subbracteata Peter Rubtzoff 1962-6-1 4868 Sonoma Freestone Marsh. Comment
  CAS-BOT-BC329286  Carex tumulicola Peter Rubtzoff 1958-5-3 3620 Sonoma Atascadero Creek Marsh. Comment
  RSA0034192  Carex tumulicola Peter Rubtzoff 1971-6-25 6561 Sonoma Intermittent lake off west side of Highway 1, 0.7 miles southeast of Salmon Creek crossing. Comment
  UC836641  Carex tumulicola Lewis S. Rose 1939-5-14 39118 Sonoma 1 mi e Bodega Bay 30 Comment
  UC589968  Carex vesicaria var. major H. S. Yates 1936-5-17 5632 Sonoma 2 mi ne Graton; Sebastopol Quadrangle 30 Comment
  CAS-BOT-BC281920  Carthamus lanatus Greg de Nevers 1992-7-22 10223 Sonoma Sonoma Mountain, Lichau Rd, Fairfield-Osborn Preserve 243 Comment
  RSA19277  Castilleja ambigua subsp. ambigua Jens Clausen 1935-5-24 1095 Sonoma 6.5 mi. S. of Jenner on the Bodega Road. Comment
  RSA239766  Castilleja ambigua subsp. ambigua Larry E. DeBuhr, Gary D. Wallace 1973-5-18 1084 Sonoma Pitkin-Jones Tree Farm; on Vine Hill road 1.3 miles north of jct. with Guerneyville Road. West of Santa Rosa. Comment
  UC1537454  Castilleja densiflora subsp. densiflora Gordon H. True Jr. 1938-4-13 860 Sonoma between Sonoma and Black Point Comment
  UC27168  Castilleja densiflora subsp. densiflora H. N. Bolander 1864-1 3851 Sonoma Mark West Comment
  UC535060  Castilleja densiflora subsp. densiflora H. E. and S. T. Parks 1930-5-7 632 Sonoma n end Knight's Valley 106 Comment
  RSA177902  Castilleja foliolosa Robert F. Thorne 1965-4-20 34357 Sonoma On Cavedale Road, 0.5 miles up from State Hwy 12, ca. 4 miles N of Sonoma. 244 Comment
  UC1238900  Castilleja foliolosa Freed W. Hoffman 1950-5-27 3594 Sonoma on Healdsburg to Guerneville Highway (Fred McMurray Ranch); North Coast Ranges Comment
  UC596655  Castilleja foliolosa Rensselaer J. Smith Jul 1904 Sonoma Highland Comment
  CAS-BOT-BC243854  Castilleja latifolia J. Clausen 1935-5-24 1088 Sonoma 5.1 mi. S of Jenner on the Bodega Road Comment
  SEINET10582686  Castilleja roseana Rimo Bacigalupi 1956-5-30 Bacigalupi 5667 Sonoma Along and just above creek-bed, headwaters of Big Austin Creek, vicinity of "The Cedars", near Layton chromite mine. 267 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
  UCD123033  Castilleja subinclusa subsp. franciscana Terri Williamson 1990-5-20 56 Sonoma Bayflat Road, Bodega Bay. 3 Comment
  JEPS60451  Castilleja wightii T. I. Chuang and F. M. Chuang 1969-6-29 6689 Sonoma 2.9 mi s Russian River (Highway 1) Comment
  JEPS85724  Castilleja wightii L. R. Heckard 1968-7-23 2070 Sonoma n of Bodege Bay; Schoolhouse Beach Comment
  POM180772  Castilleja wightii J. T. Howell 1930-7-27 5412 Sonoma Exposed ocean bluff, 4 miles N of Bodega Bay. Comment
  RSA700516  Castilleja wightii Noel Holmgren, James L. Reveal 1966-6-6 2650 Sonoma California 1, 2 miles south of California 116 junction. Comment
  CAS-BOT-BC361351  Caulanthus lasiophyllus Greg de Nevers 1997-4-24 10959 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC48518  Ceanothus confusus Milo S. Baker 1939-3-20 9244 Sonoma ca. 4 mi. north of Santa Rosa on road past County Hospital Comment
  UCD112089  Ceanothus cuneatus Frederica Bowcutt 1994-6-25 1911 Sonoma Sugar Loaf 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 miles northwest of Napa. Gray Pine Trail > 0.5 mile north of trailhead on Meadow Trail; east of Sonoma Creek. 445 Comment
  UC1084437  Ceanothus cuneatus var. cuneatus G. Thomas Robbins 1940-3-21 295 Sonoma ca 6 mi e Windsor (along Chalk Hill Rd) Comment
  UC1299546  Ceanothus cuneatus var. cuneatus Freed W. Hoffman 1947-5-30 520 Sonoma Layton Mine, Auston Creek North Coast Ranges Comment
  CAS-BOT-BC49699  Ceanothus cuneatus var. ramulosus Walter Knight; Cliff Schmidt 1987-2-27 6056 Sonoma Cavedale Road 274 Comment
  CAS-BOT-BC64355  Ceanothus foliosus Peter Rubtzoff 1953-5-17 1398 Sonoma Forested hills s. of Guerneville. Comment
  UCD158849  Ceanothus foliosus James A. Neilson Jr.; Teresa A. Sholars 1974-12-29 2919 Sonoma The Geysers, Section 15. (Elevation estimated by label maker using Google Earth.) 723 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
  CAS-BOT-BC49998  Ceanothus gloriosus Milo S. Baker 1935-4-1 8028 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
  CAS-BOT-BC50015  Ceanothus gloriosus John Thomas Howell 1937-4-11 12903 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  CAS-BOT-BC50017  Ceanothus gloriosus John Thomas Howell 1937-4-11 12900 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  CAS-BOT-BC32736  Ceanothus gloriosus var. exaltatus John Thomas Howell 1931-3-14 5781 Sonoma Vine Hill District, 10 miles W of Santa Rosa Comment
  UC1299551  Ceanothus gloriosus var. exaltatus Freed W. Hoffman 1947-4-15 661 Sonoma In marine sediments, near Sebastopol Comment
  UC912383  Ceanothus gloriosus var. exaltatus Herbert L. Mason 1931-3-7 5801 Sonoma Vine Hill School, 12 miles west of Santa Rosa. Comment
  UCD112150  Ceanothus gloriosus var. exaltatus Roman Gankin 1966-3-3 694 Sonoma east of Occidental Ridge on Graton Road, 2.5 miles east of Occidental. Comment
  CAS-BOT-BC49953  Ceanothus gloriosus var. exaltatus J. Clausen 1933-3-26 742 Sonoma southern boundary of the Frey Brothers Ranch, about 10 miles west of Santa Rosa on the Santa Rosa-Graton Road Comment
  OBI10514  Ceanothus gloriosus var. exaltatus Milo S. Baker 1924-4-18 86 Sonoma Roadside Ft Bragg to Willits about halfway in a small valley Comment
Read comments
Jan 28 2016
  SACT002923  Ceanothus incanus Josephine Van Ess 1982-7-21 Sonoma Collected at Mount Mill House Girl Scout Camp. Open area in forest. Medium size shrubs. White flowers. Comment
  CAS-BOT-BC50954  Ceanothus integerrimus James McMurphy 1909-5-29 s.n. Sonoma Grade between Black Mountain and Geyser Mountain Comment
  CAS-BOT-BC50650  Ceanothus jepsonii Catherine Best 1981-4-4 s.n. Sonoma Harrison Grade Road 2 miles north of Occidental Comment
  UC1070782  Ceanothus jepsonii E. Armstrong 1934-3-26 935 Sonoma 4 mi nw Camp Meeker; Sebastopol quad Comment
  UCD112063  Ceanothus jepsonii Roger Raiche 1985-4-6 RR 50182 Sonoma Dry Cr area nr Healdsburg, ridge w of Dry Cr Vly, unnamed rd n of Dorman Cyn on ridge. 243 Comment
  UC583424  Ceanothus jepsonii var. albiflorus Elmer I. Applegate 1934-3-25 8860 Sonoma Pine Flat, W slope of Mayacama Mountains Comment
  UC73364  Ceanothus parryi Milo S. Baker May, 1899 Sonoma near Occidental; Green Valley Comment
  UCD112491  Ceanothus parryi Beecher Crampton 1955-6-17 2933 Sonoma Sonoma County, 3.3 miles west of Forestville, along State Highway 12. Comment
  RSA25703  Ceanothus parryi Carl B. Wolf 1941-7-17 11020 Sonoma N coast Range, Trinity Mt, 2 miles E of Hwy and12 (Sonoma to Santa Rosa) 457 Comment
  CAS-BOT-BC53044  Ceanothus sonomensis J. Clausen 1933-3-25 723 Sonoma Along the road from Warfield to Oakville, about 4 miles east of Warfield 213 Comment
  RSA175239  Ceanothus sonomensis Robert F. Thorne, Percy C. Everett 1963-6-8 32247 Sonoma Canedale road, 2 miles E of Glan Ellen, Hood's Peak Range betw Napa and Sonoma Valleys Comment
  UC1071400  Ceanothus thyrsiflorus E. Armstrong 1934-3-26 951 Sonoma Camp Meeker Sebastopol quad 121 Comment
  UCD112733  Ceanothus thyrsiflorus var. griseus Mary M. Hektner 1976-5-10 251 Sonoma Along old fence on California Highway 1, Unit 35-A Owners' Map, Sea Ranch. Comment
  CAS-BOT-BC52393  Ceanothus velutinus L. R. Abrams 1920-7-4 7638 Sonoma Seaview Comment
  CAS-BOT-BC366942  Centaurea Greg de Nevers 1993-5-30 10467 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa along Piney Canyon Rd. from Bald Hills 400 Comment
  UC397072  Centaurea iberica Grace M. Cole 1929-7-29 Sonoma Santa Rosa Comment
  CAS-BOT-BC277158  Centaurea melitensis G. DeNevers 1981-5-30 1413 Sonoma Pepperwood Ranch. In Bertoli's Creek Comment
  CAS-BOT-BC277253  Centaurea solstitialis Walter Knight; Irja Knight 1963-12-27 451 Sonoma Pine Flat Rd. Circle 8 Ranch 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
  CAS-BOT-BC288816  Centromadia fitchii Helen D. Geis 1902-8-1 572 Sonoma Unspecified Comment
  CAS-BOT-BC271542  Centromadia parryi subsp. parryi David D. Keck 1933-11-10 2730 Sonoma 2.3 mi. S.W. of Shellville railroad station Comment
  RSA785923  Centromadia pungens subsp. pungens Peter Rubtzoff 1970-5-30 6252 Sonoma 5 mi. north of Sears Point. Comment
  CAS-BOT-BC251267  Cerastium Peter Rubtzoff 1964-5-20 5315 Sonoma Brooks Gulch Marsh. Comment
  CAS-BOT-BC251311  Cerastium Peter Rubtzoff 1959-6-20 4155 Sonoma Willow Creek Marsh. Comment
  CAS-BOT-BC384973  Cerastium arvense Alice Eastwood 1915-6-29 4812 Sonoma Bodega Point Comment
  UC1299489  Cerastium arvense Freed W. Hoffman 1950-5-15 3730 Sonoma Pole Mt. near Cazadero; North Coast Ranges, Pole Mt. Comment
  CAS-BOT-BC388436  Cerastium glomeratum G. DeNevers 1981-4-16 713 Sonoma Pepperwood Ranch. Garrison Canyon, by shack Comment
  CAS-BOT-BC388440  Cerastium glomeratum Ella Dales Cantelow 1940-4-20 3444 Sonoma N. of Ft. Ross, Hy 1 Comment
  CAS-BOT-BC207632  Cercis occidentalis Peter Fritsch 1999-10-3 1749 Sonoma 0.5 mi W of the gate to the geothermal plant along Geysers Resort Road. Comment
  POM203653  Cercocarpus betuloides J. T. Howell 1933-4-2 10938 Sonoma Sonoma Creek Canyon. Comment
  UCD158834  Cercocarpus betuloides James A. Neilson Jr.; Teresa A. Sholars 1974-12-29 2920 Sonoma The Geysers, Section 15. (Elevation estimated by label maker using Google Earth.) 586 Comment
  CAS-BOT-BC135415  Cercocarpus betuloides var. betuloides A. A. Heller; H. E. Brown 1902-3-25 5147 Sonoma Near Mark West Springs Comment
  HSC18566  Cercocarpus montanus var. glaber R. Spellenberg, D. Sutherland, A. Sylvester 1966-3-26 1347 Sonoma 10 mi. W of Big Geysers along Sulphur Creek Comment
  CAS-BOT-BC279790  Chamaemelum fuscatum Peter H. Raven 1963-4-12 18161 Sonoma Along U.S. 101 just south of Asti Comment
  HSC67549  Chamaemelum fuscatum J. P. Smith 1975-3-27 8047 Sonoma Dutcher Creek Rd., 0.7 mi. from its jct. with U.S. 101 Comment
  UC42452  Cheilanthes covillei F. T. Bioletti 1893-3-12 Sonoma Sonoma Comment
  UCD166098  Chenopodium Peter Rubtzoff 1971-8-9 6638 Sonoma Laguna, Chileno Valley. Comment
  UCD166099  Chenopodium Peter Rubtzoff 1971-8-9 6639 Sonoma Laguna, Chileno Valley. Comment
  SEINET5763969 Image available Chenopodium ambrosioides H. S. Reed 1948-1 2025 Sonoma Sonoma Creek, near Kenwood Comment
  RSA201186  Chenopodium botrys Peter Rubtzoff 1965-8-22 5615 Sonoma Russian River bottom at Forest Hills (5.5 miles E of Guerneville). Comment
  UC1563922  Chenopodium pumilio Barbara Ertter 1988-11-5 8032 Sonoma ca 5 mi due s Cloverdale (point below Little Flat parking area, Lake Sonoma, w of bridge); Lake Sonoma 152 Comment
  CAS-BOT-BC499264  Chlorogalum pomeridianum David D. Keck 1944-7-11 5517 Sonoma 2 miles south of bridge across mouth of Russian River at Bodega, Sonoma Coast State Park Comment
  JEPS50856  Chlorogalum pomeridianum var. pomeridianum H-M. Beard Jun 26 1967-Jun 27 1967 61 .104 Sonoma Comment
  CAS-BOT-BC361397  Chorizanthe Greg de Nevers 1993-5-10 10442 Sonoma Bodega Dunes State Beach, just north of Bodega Head. 0 Comment
  CAS-BOT-BC191512  Chorizanthe cuspidata var. villosa H. D. Ripley; R. C. Barneby 1945-6-22 6950 Sonoma Bodega Bay 15 Comment
  HSC17260  Chorizanthe cuspidata var. villosa L. S. Rose 1962-8-6 62077 Sonoma Bodega Point 30 Comment
  CAS-BOT-BC368060  Chorizanthe polygonoides Greg de Nevers 1998-5-26 11258 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Near Murry Gate 400 Comment
  CAS-BOT-BC252849  Chorizanthe polygonoides var. polygonoides Alice Eastwood 1918-5-1 6832 Sonoma Mt. St. Helena Comment
  OBI59827  Chrysolepis chrysophylla var. minor P. C. Pendse 1979-10-7 s.n. Sonoma Salt Point State Park Comment
  CAS-BOT-BC368097  Cicendia quadrangularis Greg de Nevers 1998-5-5 11233 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. On Weimar Flat 400 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
  CAS-BOT-BC279994  Cirsium douglasii var. douglasii A. A. Heller 1902-7-2 5804 Sonoma Santa Rosa Creek, east of Santa Rosa Comment
  OBI16748  Cirsium douglasii var. douglasii Robert F. Hoover 1966-7-17 9914 Sonoma Sausal Crk N of Alexander Valley Comment
  CAS-BOT-BC280369  Cirsium occidentale var. venustum Peter Rubtzoff 1952-6-3 1144 Sonoma South slope of Fitch Mtn., near Healdsburg Comment
  UC1618422  Cirsium occidentale var. venustum Barbara Ertter, Lincoln Constance 1993-7-10 12100 Sonoma 5 mi. beyond pavement on Rockpile Rd. w. of Lake Sonoma (rd. to Annapolis) Comment
  CAS-BOT-BC280534  Cirsium quercetorum Alice Eastwood 1915-6-29 4891 Sonoma Bodega Point Comment
  CAS-BOT-BC285749  Cirsium remotifolium John Thomas Howell 1936-7-26 12664 Sonoma 2 1/2 miles from Camp Meeker on road to Monte Rio Comment
  CAS-BOT-BC285757  Cirsium remotifolium Alice Eastwood; John Thomas Howell 1938-7-6 6088 Sonoma Alder Glen Springs Comment
  UC30827  Cirsium remotifolium var. odontolepis F. T. Bioletti 1892-1 Sonoma Tracy Comment
  RSA594919  Clarkia John H. Thomas 1955-5-22 5182 Sonoma Along St. Helena Road and West Creek, 1.2 miles W of Sonoma - Napa County line, 6 miles from St. Helena 457 Comment
  CAS-BOT-BC162557  Clarkia affinis Peter H. Raven 1951-4-22 2781 Sonoma Hills E of Aqua Caliente Comment
  CAS-BOT-BC161049  Clarkia amoena subsp. amoena Eliz. Parsons Hawver June 191 s.n. Sonoma Skaggs Springs Comment
  CAS-BOT-BC161057  Clarkia amoena subsp. amoena P. A. Munz 1936-8-8 14311 Sonoma Coast 5 mi. north of Jenner Comment
  UC107819  Clarkia amoena subsp. amoena Katharine Brandegee 1905-6-26 Sonoma Bodega Bay Comment
  RSA128999  Clarkia amoena subsp. amoena Joanne Taylor 1941-7-13 11 Sonoma Canyon about 10 miles from Bodega Head. Comment
  CAS-BOT-BC172207  Clarkia concinna Rimo Bacigalupi 1926-5-2 1397 Sonoma Cazadero Comment
  UCR115038  Clarkia concinna G. Fred Hrusa, H. Townsend 1994-5-2 11873 Sonoma Gilliam Creek, canyo immediately downslope of Bullfrog Pond Campground Comment
  POM194539  Clarkia concinna subsp. concinna Y. Mexia 1929-6-2 2394 Sonoma Near Mark West Springs Comment
  CAS-BOT-BC163148  Clarkia gracilis subsp. sonomensis Alice Eastwood 1915-6-5 4592 Sonoma Petrified Forest Comment
  RSA60765  Clarkia gracilis subsp. sonomensis A. A. Heller 1902-6-10 5682 Sonoma Santa Rosa Comment
  UC423077  Clarkia gracilis subsp. sonomensis Miss C. M. Hoak Aug. 1912 Sonoma Monte Rio Comment
  RSA449288  Clarkia gracilis subsp. sonomensis Christopher Davidson 1977-6-20 6004 Sonoma Dry Cr. Rd., 8.6 mi. W of Geyserville 91 Comment
  LA30762  Clarkia imbricata Peter H. Raven; Richard Snow 1958-7-23 13692 Sonoma at 4551 Vine Hill Road, near Pitkin Marsh Comment
  UC486497  Clarkia purpurea subsp. quadrivulnera H. E. and S. T. Parks 1930-5-10 606 Sonoma Knights Valley Comment
  CAS-BOT-BC163470  Clarkia purpurea subsp. quadrivulnera H. E. Parks; S. T. Parks 1930-5-10 0606 Sonoma In open hills around Knight's Valley Comment
  UCD161396  Clarkia rhomboidea James A. Neilson Jr. 1976-6-18 s.n. Sonoma Mayacmas Mountains. Ridge crest between Big Sulphur Creek and Squaw Creek. (Exact location unkown. Coordinates estimated by label maker.) Comment
  UC75680  Clarkia unguiculata Milo S. Baker 1898-6-11 594 Sonoma Cemetery Santa Rosa Comment
  RSA22256  Clarkia unguiculata Blanche Clear 1938-5-28 s.n. Sonoma Alexander Valley toward Geyserville Comment
  SEINET10492158  Clarkia unguiculata Tim Holtsford 1992-5-23 Holtsford 920523 -2 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 cocinna is sympatric. Comment
  CAS-BOT-BC439319  Claytonia exigua subsp. exigua Catherine Best 1982-3-20 s.n. Sonoma Stoetz Lane, 2 mi. north east of Occidental Comment
  SD130424  Claytonia gypsophiloides F. Alameda, G. DeNevers 1981-3-30 4876 Sonoma Pepperwood Ranch: along road to the Garrison Cabin at the SW sector of the ranch Comment
  UC583539  Claytonia gypsophiloides Elmer I. Applegate 1934-3-25 8846 Sonoma Sausal Creek Mayacamas Mountains (w foothills of Mayacamas Mountains) Comment
  UC7857  Claytonia gypsophiloides Alice King Apr 1897 Sonoma Healdsburg Comment
  UCD33223  Claytonia gypsophiloides Beecher Crampton 1967-5-15 7924 Sonoma Lytton. Comment
  UCR265107  Claytonia gypsophiloides Ann Howald 2015-4-1 3323 Sonoma North Coast Ranges, Stewarts Point-Skaggs Springs Rd, 16.0 miles west of intersection with Rockpile Rd, Wolf Creek drainage 374 Comment
  CAS-BOT-BC439396  Claytonia gypsophiloides Catherine Best 1982-3-20 s.n. Sonoma On Graton Rd. 1 mi. East of Occidental Comment
  RSA52691  Claytonia gypsophiloides I. L. Wiggins 1949-4-30 12062 Sonoma 6.8 mi. east of Santa Rosa on road to Calistoga. Comment
  UC625511  Claytonia gypsophiloides Frank W. Gould 1938-4-3 119 b Sonoma 1 mi w Sonoma County line (on the road from Calistoga) 182 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
  CAS-BOT-BC439635  Claytonia parviflora subsp. parviflora Peter Rubtzoff 1953-5-17 1390 Sonoma South of Guerneville (Neeley Hill area). Comment
  HSC17700  Claytonia perfoliata F. Demostene 1966-4-2 11 Sonoma 2 mi. E of Healdsburg Comment
  HSC49615  Claytonia perfoliata R. York 1979-4-8 199 Sonoma Along Hwy. 128 305 Comment
  CAS-BOT-BC92743  Clematis ligusticifolia Volney Rattan 1884-6-1 s.n. Sonoma Russian River. Comment
  UC909544  Clintonia andrewsiana E. W. Gifford August, 1950 Sonoma near Stewart's Point (adjacent to coast) 304 Comment
  POM311203  Collinsia greenei H. K. Sharsmith 1952-6-18 4130 Sonoma About 0.8 mile west of junction of Socrates Mine road with Pine Flat-Middletown road, Mayacamas Mountains. 915 Comment
  UC1032563  Collinsia heterophylla A. Lewis 1932-5-12 71 Sonoma 1 mi e of Sonoma 152 Comment
  UCD123569  Collinsia heterophylla Frederica Bowcutt 1994-5-21 1830 Sonoma Sugarloaf Ridge State Park. About 40 air miles north of San Francisco, 11 air miles east of Santa Rosa, 18 air miles northwest of Napa, 1.5 air miles northeast of Kenwood. Along the Hillside Trail, 1/4 mile past Sugar Pine Trail junction. 396 Comment
  UC26649  Collinsia sparsiflora var. arvensis Alice King May 1897 Sonoma Healdsburg Comment
  UC26654  Collinsia sparsiflora var. arvensis Mrs. Ward 1891-1 Sonoma Kenwood Comment
  UC76211  Collinsia sparsiflora var. sparsiflora Milo S. Baker 1898-4-6 Sonoma Between Gualala R. and Skaggs Springs Gualala River Comment
  UC879756  Collomia grandiflora Eliz. Parsons Hawver 1915-6-3 Sonoma Skaggs Springs Comment
Read comments
Jan 23 2016
  SEINET12337433  Collomia heterophylla W. Knight, Knight, I.; Knight, T. 1985-1 5147 Sonoma Comment
  CAS-BOT-BC288916  Conyza canadensis Peter Rubtzoff 1986-9-28 9753 Sonoma Russian River at Forest Hills, 55 miles E of Guerneville Comment
  SD56667  Corallorhiza maculata Darley F. Howe 1963-7-3 3591 Sonoma 20 miles north of junction with #12 on #1, under redwoods. Comment
  SBBG32433  Cordylanthus pilosus L. S. Rose 1956-8-20 56152 Sonoma Rincon Ridge, E of Santa Rosa 91 Comment
  SEINET12327524  Cordylanthus pilosus W. Knight, Knight, I. 1984-1 5074 Sonoma 4.1 mi up Cavedale Rd from St. 12 640 Comment
  JEPS20327  Cordylanthus pilosus subsp. pilosus Lewis S. Rose 1956-8-20 56152 Sonoma e Santa Rosa; Rincon Ridge 91 Comment
  UC103416  Cordylanthus pilosus subsp. pilosus Michener and Bioletti 1891-9-4 1431 a Sonoma s Los Guilucos Comment
  CAS-BOT-BC238233  Cordylanthus tenuis subsp. capillaris R. F. Hoover 1965-6-29 9472 Sonoma North of summit on Harrison Grade road near Occidental Comment
  JEPS29842  Cordylanthus tenuis subsp. capillaris Rimo Bacigalupi and L. Heckard, J. Weiler 1961-6-23 7832 Sonoma ca. 3/4 mi nw Occidental School (nw of garbage disposal area, along Stoetz Lane, 0.5 mi nw of its junction with Harrison Grade road.) 228 Comment
Read comments
Jul 27 2009
  JEPS69347  Cordylanthus tenuis subsp. capillaris T. I. Chuang, F. M. Chuang and Carl Chuang 1972-7-22 7075 Sonoma 2 mi n Occidental (on Harrison Grade Road) Comment
  CAS-BOT-BC212288  Cornus glabrata Peter Rubtzoff 1960-5-29 4420 Sonoma Laguna de Santa Rosa near Trenton south of Woolsey Road Comment
  RSA94342  Cornus glabrata Peter Rubtzoff 1951-6-7 109 Sonoma Western branch of the Upper Marsh. Comment
  UCD117132  Cornus glabrata P. B. Kennedy 1927-8-20 s.n. Sonoma Knight's Valley. Comment
  CAS-BOT-BC180190  Corylus cornuta subsp. californica Walter Knight; Irja Knight 1963-9-15 296 Sonoma Los Alamos Rd., Santa Rosa Comment
  SEINET12029962  Corylus cornuta var. californica F. H. Utech, Walter, W.; Knight, I. 1984-1 84 102 a Sonoma ca 4 mi NNW of Sonoma on Cavedale Road from junction with CA 12 396 Comment
  CAS-BOT-BC290300  Cotula coronopifolia Peter Rubtzoff 1951-7-14 451 Sonoma Pitkin Marsh, near Forestville. Northern half of Lower Marsh Comment
  CAS-BOT-BC427658  Crassula aquatica Peter Rubtzoff 1971-7-3 6587 Sonoma Near (south of) U.C. Bodega Marine Laboratory dormitory. Comment
  NY435883  Crataegus gaylussacia A. A. Heller 1902-8-20 6052 Sonoma Lagoon at Scbastopol. Comment
  POM141059  Crataegus suksdorfii A. A. Heller 1902-8-20 6052 Sonoma Lagoon at Scbastopol Comment
  UCD116890  Crocanthemum scoparium Charles B. Heiser Jr. 1946-5-19 1744 Sonoma Vine Hill, W of Santa Rosa Comment
  UCR246781  Crupina vulgaris Les Sonder 1990-1-25 s.n. Sonoma Anadell State Park, Santa Rosa 351 Comment
  SEINET483798  Cryptantha leiocarpa F. R. Stermitz 1992-4-13 Sonoma Sand dune west of dormitories - Bodegee Bar reserve Comment
  RSA17622  Cupressus macnabiana C. B. Wolf, E. R. Johnson 1934-10-18 6198 Sonoma Head of Hooker Canyon, 4.7 miles east of Sonoma - Kenwood Road. 549 Comment
  RSA178043  Cupressus macnabiana Robert F. Thorne 1965-4-20 34367 Sonoma Head of Hooker Canyon on Cavedale Road, north of Sonoma 610 Comment
  UCD133535  Cupressus macnabiana Jo Ann Olson; Gary R. Robbins 1969-3-1 9 Sonoma On Cavedale Road, 1 mile southwest of Mt. Veeder. 609 Comment
  CAS-BOT-BC85464  Cupressus sargentii Milo Samuel Baker 1928-3-1 2597 b Sonoma W.B. Coy Ranch north of Occidental Comment
  UC353811  Cupressus sargentii Milo S. Baker 1928-4-18 2966 a Sonoma 3 mi n Occidental (W. B. Coy Ranch) Comment
  UCR128480  Cupressus sargentii L. S. Rose 1955-7-11 55113 Sonoma 2 miles east of Occidental 244 Comment
  SEINET11739539  Cupressus sargentii W. Knight, Knight, I.; Edwards, S. 1986-1 5362 Sonoma Geyser Peak, along trail to summit 975 Comment
  CAS-BOT-BC376333  Cuscuta Greg de Nevers 1996-11-10 10891 Sonoma Just north of Highway 37 opposite Port Sonoma, Lower Ranch. 0 Comment
  CDA15297  Cuscuta howelliana G. F. Hrusa, R. Buckmann (DFG) 1996-10-5 13583 Sonoma North Coast Biodiversity Arena; Summit of Mayacmas Range at W end of Diamond Mtn. Rd. +- 2 m. SW of Calistoga. Sheet 1 of 3. Comment
  CDA41304  Cuscuta howelliana G. F. Hrusa, A. Buckman (DFG) 1996-10-5 13583 Sonoma North Coast Biodiversity Arena; Summit of Mayacmas Range at W end of Diamond Mtn. Rd. +- 2 m. SW of Calistoga. Sheet 2 of 3. Comment
  UC1042318  Cuscuta obtusiflora var. glandulosa John Thomas Howell 1946-8-17 22851 Sonoma n of Sebastopol; The Laguna Comment
  CAS-BOT-BC182775  Cuscuta pentagona Peter Rubtzoff 1970-9-8 6384 Sonoma Sluggish tributary of Mark West Creek, ca. 3 miles west of Fulton. Comment
  CDA39985  Cuscuta subinclusa Mary-Jean Sawyer 2008-7-3 PDR# 1544920 Sonoma Sears Pt. Dr., on Hwy 37 X Hwy 121, On side of road down to waters edge, near Tolby Creek. 0 Comment
  UC31350  Cynara cardunculus subsp. cardunculus unknown 1899-7-9 116 Sonoma Sebastopol Comment
  RSA126600  Cynodon dactylon H. S. Yates 1937-5-30 6539 Sonoma 1.5 miles northeast of Graton 30 Comment
  UC816852  Cynodon dactylon Marcus E. Jones, A. M. 1882-7-18 Sonoma Duncan's Mills Comment
  UCR248761  Cynodon dactylon Peter Rubtzoff 1971-8-23 6658 Sonoma Meacham Road, 0.35 miles south of Stony Point Road 75 Comment
  POM63635  Cynoglossum grande A. A. Heller, H. E. Brown 1902-3-14 5052 Sonoma Near Santa Rosa Comment
  CAS-BOT-BC331482  Cynosurus Peter Rubtzoff 1969-8-29 6165 Sonoma Along Salmon Creek, ca. 0.5 miles upstream from Highway #1. Comment
  CAS-BOT-BC190429  Cynosurus echinatus Catherine Best 1984-6-11 s.n. Sonoma At Goat Rock Park. Comment
  UC1146682  Cynosurus echinatus Freed W. Hoffman 1941-6-1 2186 Sonoma Oregon Canyon; North Coast Ranges, Oregon Canyon Comment
  UCR248758  Cynosurus echinatus Peter Rubtzoff 1978-6-11 9209 Sonoma Cunningham Marsh area, on north side of Blucher Creek Valley 35 Comment
  RSA0023081  Cynosurus echinatus Peter Rubtzoff 1974-5-25 7460 Sonoma Upper Green Valley Marsh. Comment
  RSA44397  Cyperus eragrostis Milo S. Baker 1937-9-20 6037 Sonoma 4 miles southeast of Somona on Vineburg - Napa Road Comment
  UCD141032  Cyperus eragrostis Frederica Bowcutt 1994-5-21 1837 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. On side of hillside trail past the junction with Digger Pine trail approximately 1 mile. 411 Comment
  CAS-BOT-BC113904  Cyperus niger var. capitatus Peter Rubtzoff 1951-6-10 193 Sonoma Plants of the Pitkin Marsh, near Forestville. Northern half of Lower Marsh. Comment
  CAS-BOT-BC113914  Cyperus niger var. capitatus Peter Rubtzoff 1958-8-23 3902 Sonoma Laguna de Santa Rosa E of Cunningham (nr. Llamo Road). Comment
  UCD167422  Cypselea humifusa Peter Rubtzoff 1975-8-26 8358 Sonoma Bennett Mountain Lake. 361 Comment
  CAS-BOT-BC70722  Cystopteris fragilis Eliz. Parsons Hawver 1915-6-3 s.n. Sonoma Skaggs Springs Comment
  CAS-BOT-BC201021  Cytisus scoparius Greg de Nevers 1992-6-26 10207 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Along Franz Creek 91 Comment
  UCD105683  Cytisus scoparius Ivette Loredo-Prendeville; Nicole Canon 1993-4-24 62 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. 259 Comment
  CAS-BOT-BC189801  Dactylis glomerata Peter Rubtzoff 1962-6-19 4926 Sonoma Occidental Marsh. Comment
  UCD60280  Dactylis glomerata Alan A. Beetle 1945-8-4 4011 Sonoma 10 miles north of Fort Ross. Comment
  UCD60294  Dactylis glomerata Collector unknown 1941-5-1 Sonoma Garden in Santa Rosa. Comment
  CAS-BOT-BC445564  Damasonium californicum Peter H. Raven 1963-4-28 18253 Sonoma 4.7 miles south of El Verano on Arnold Drive. Comment
  UC1100146  Damasonium californicum Malcolm A. Nobs and S. Galen Smith 1949-7-29 921 Sonoma w. of Santa Rosa (on rd. to Sebastopol, The Laguna) Comment
  UC115528  Damasonium californicum unknown May 8 1880-Jun 7 1880 Sonoma near Petaluma Petaluma Comment
  CAS-BOT-BC192277  Danthonia californica John Thomas Howell 1935-5-5 12611 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  CAS-BOT-BC192282  Danthonia californica H. S. Yates 1937-5-30 6540 Sonoma 1 1/2 miles N. N. E. of Graton Comment
  UCD60307  Danthonia californica R. Tofsrud 1941-5-1 28 Sonoma Behind old Santa Rosa Cemetery. Comment
  UCD60480  Danthonia californica B. Crampton 1955-6-17 2960 Sonoma 4.5 miles east of Fort Ross. Comment
  UC1023587  Danthonia californica Virginia Bufford 1936-5-14 282 Sonoma Sonoma Mt. Rd. about 10 mi from Santa Rosa Comment
  SEINET10912493  Danthonia californica var. americana B. Crampton 1963-5-27 Crampton 6811 Sonoma Alexander Valley, state Hwy. 128, ca. 8 miles SE of Geyserville. Roadside ditch at base of foothill slope. Comment
  CAS-BOT-BC154137  Datura Peter Rubtzoff 1958-8-30 3937 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
  CAS-BOT-BC366897  Datura wrightii Greg de Nevers 1997-10-17 11107 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. By Hansel's corral 400 Comment
  RSA0045177  Datura wrightii Greg de Nevers 1997-10-17 11107 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. By Hansel's corral. 100 Comment
  UCD127397  Daucus carota R. Tofsrud 1948-6-24 s.n. Sonoma Santa Rosa. Comment
  OBI81728  Daucus pusillus Tracey Call, Viola Call 1961-6-10 2069 Sonoma 1 mile north of Kruse Rhododendron State Park. Comment
  CAS-BOT-BC292097  Delairea odorata Greg de Nevers 1986-12-17 8117 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC10349  Delphinium hesperium Roxana Stinchfield Ferris; L. Lorraine 1961-6-14 13540 Sonoma 1 mile on Joy Road from junction with Bodega Highway Comment
  UC118585  Delphinium hesperium subsp. hesperium Michener and Bioletti 1892-5-30 932 a Sonoma Hood's Peak Comment
Read comments
Jun 5 2007
  UC727784  Delphinium hesperium subsp. hesperium Milo S. Baker 1899-1 Sonoma near Glen Ellen Comment
  CAS-BOT-BC10099  Delphinium luteum John Thomas Howell 1931-4-18 6414 Sonoma Larkspur Rock, near Bodega Bay Comment
  NY24260  Delphinium luteum A. A. Heller 1940-5-17 15634 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
  JEPS128285  Delphinium nudicaule Roger Raiche 2005-4-9 007 .05 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UC635362  Delphinium nudicaule H. L. Mason 1930-6-1 5643 Sonoma mouth Gualala River Comment
  UC906492  Delphinium nudicaule J. Ewan 1935-5-12 9234 Sonoma 1/4 mi from road on n side (mouth of creek on ne shore of bay); Bodega Bay, Salmon Creek Comment
  UC70446  Delphinium variegatum Milo S. Baker 1898-5-7 586 Sonoma near Glen Ellen Comment
  UC906463  Delphinium variegatum subsp. variegatum J. Ewan 1935-5-12 9241 Sonoma 2 mi n Kenwood; Los Guilicos Comment
  NY387587  Dendromecon myrtifolia A. A. Heller 1902-5-29 5618 Sonoma Mt. Hood 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
  UCD164696  Deschampsia cespitosa Peter Rubtzoff 1976-6-5 8591 Sonoma False Lake Meadow area, Annadel State Park. Comment
  UC1131421  Deschampsia cespitosa subsp. cespitosa H. S. Yates 1936-5-16 5605 Sonoma 2 mi. s.e. Forestville (Pitkin Marsh); Sebastopol Quad., Pitkin Marsh Comment
  CAS-BOT-BC210169  Deschampsia danthonioides Peter Rubtzoff 1971-6-5 6510 Sonoma Vernal pool 4.25 mi. west of Glen Ellen on Bennett Valley Road. Comment
  RSA0059085  Deschampsia danthonioides Greg de Nevers 1997-5-13 10999 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. On Weimar Flat. 100 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-BC201956  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
  CAS-BOT-BC201963  Deschampsia elongata Peter Rubtzoff 1960-6-7 4461 Sonoma Austin Creek Marsh 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
  UCD63470  Deschampsia elongata Beecher Crampton 1957-7-11 4308 Sonoma Along State Hwy. 1, 1.4 miles SE of Bodega Bay. Comment
  UC72730  Dicentra chrysantha Milo S. Baker 1898-6-11 669 Sonoma Little Sulphur Creek Comment
  CAS-BOT-BC208931  Dichanthelium acuminatum subsp. acuminatum Peter Rubtzoff 1951-7-22 532 Sonoma Uppermost part of NE western branch of the Upper Marsh - Pitkin Marsh, near Forestville Comment
  CAS-BOT-BC254498  Dichanthelium acuminatum subsp. acuminatum Walter Knight; Irja Knight 1968-1-1 2264 Sonoma From end of footbridge at Sulphur Creek opposite bath houses, Geysers Resort Comment
  SEINET12058504  Dichelostemma capitatum F. H. Utech 1995-3-26 95 -50 Sonoma WNW of Lake Sonoma, junction Kelly Road & Rockpile Road Comment
  SEINET12049794  Dichelostemma capitatum F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -176 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Road 485 Comment
  SEINET12048691  Dichelostemma congestum F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -170 Sonoma 0.2 mi W on Harrison Grade Road from junction with Stoetz Lane 146 Comment
  SEINET6879167  Dichelostemma congestum Wanda P. Vestal, A. G. Vestal 1947-5-13 s.n. Sonoma Ca. 7.8 miles south-southeast of Annapolis. Comment
  CAS-BOT-BC183610  Digitaria Peter Rubtzoff 1971-8-23 6655 Sonoma Meacham Road, 0.35 mi. S of Stony Point Road. Comment
  CAS-BOT-BC209111  Digitaria sanguinalis Catherine Best 1987-7-2 1299 Sonoma Along Todd Road about 1 mile from Llano Road Comment
  RSA796380  Digitaria sanguinalis Peter Rubtzoff 1956-9-14 2857 Sonoma Vacation Beach, near Guerneville, along Russian River. Comment
  UCR255869  Digitaria sanguinalis Greg de Nevers 1996-9-23 10879 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 476 Comment
  CAS-BOT-BC151973  Diplacus douglasii Milo S. Baker 1927-4-12 2072 a Sonoma S.E. slope Hood's Peak 396 Comment
  CAS-BOT-BC151752  Diplacus kelloggii Elmer I. Applegate 1934-3-25 8857 Sonoma Head waters of Sulphur Creek, west slope of Mayamaca Mountains Comment
  UC1368685  Dirca occidentalis G. Leyard Stebbins, Walter and Irja Knight 1969-2-23 2611 Sonoma on Salmon Creek Road 2.3 mi from main Bodega (town) intersection (n side of road, about 20 ft from pavement) Comment
  SEINET6957403  Dirca occidentalis Lorin I. Nevling 1996-2-17 348 Sonoma Above Salmon Creek Road approximately 2 miles from Bodega, before intersection with Fitzpatrick Lane. Altitude 320 feet. "Western Leatherwood." Comment
  POM109250  Disporum hookeri var. hookeri Marcus E. Jones 1882-7-8 s.n. Sonoma Duncan Mills. Comment
  UC483301  Dodecatheon hendersonii Ira L. Wiggins 1932-3-12 5759 Sonoma between Knight's Valley and Franz Valley; between Knight's Valley and Franz Valley Comment
  HSC17854  Dodecatheon hendersonii R. Spellenberg, D. Sutherland, A. Sylvester 1966-3-26 1327 Sonoma 1 mi. NW of Big Geysers Comment
  UCR141959  Downingia concolor Beecher Crampton 1966-5-10 7728 Sonoma Coast Range, 6.5 miles north of Sonoma on State Hwy 12, Calif. Dept. of Forestry Glen Ellen station 76 Comment
  UC890619  Downingia concolor var. concolor Alice Eastwood and John Thomas Howell 1936-5-19 2508 Sonoma 2 mi n Windsor Comment
  UCD150850  Downingia concolor var. concolor 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
  JEPS103647  Downingia concolor var. concolor Lisa Schultheis 1995-5-15 147 -95 Sonoma N of Sonoma at Rt. 12 entrance to Sonoma Valley Regional Park Comment
  JEPS108526  Downingia concolor var. concolor Lisa Schultheis 1995-5-15 151 -95 Sonoma Todd Road Reserve. SWof Santa Rosa, on Todd Road, just W of Llano Road. Comment
  RSA177046  Downingia cuspidata P. H. Raven 1963-4-28 18256 Sonoma 4.7 miles south of El Verano on Arnold Drive. Comment
  JEPS103635  Downingia pusilla Lisa Schultheis 1995-5-15 148 -95 Sonoma Santa Rosa. Alton Lane, approximately 0.25 miles W of Fulton Road Comment
  JEPS26984  Downingia pusilla Milo S. Baker 1927-5-8 2114 Sonoma near Bennett Valley Road summit Comment
  LA208036  Drymocallis glandulosa John Thomas Howell; 1930-6-8 5289 Sonoma 8.5 mi. N of Bodega Bay Comment
  CAS-BOT-BC159449  Drymocallis glandulosa var. glandulosa A. A. Heller; H. E. Brown 1902-4-22 5344 Sonoma Between Santa Rosa and Agua Caliente 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
  UC725574  Dudleya cymosa A. A. Heller 1940-5-10 15609 Sonoma along Wheatfield Fork of Gala River (on the Stewart Point-Skagg's Spring Rd) Comment
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Nov 20 2018
  CAS-BOT-BC428183  Dudleya cymosa subsp. cymosa John Thomas Howell 1932-10-9 10814 Sonoma Sonoma Creek Canyon near Kenwood Springs Comment
  UC420755  Dudleya farinosa Miss C. M. Hoak Aug. 1912 Sonoma Monte Rio Comment
  RSA785441  Echinochloa Peter Rubtzoff 1976-8-29 8836 Sonoma Russian River at Forest Hills, 5.5 mi east of Guerneville. Comment
  CAS-BOT-BC176201  Echinochloa crus-galli Peter Rubtzoff 1955-7-17 1974 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC176367  Echinochloa crus-galli Peter Rubtzoff 1955-8-7 2031 Sonoma Guerneville Marsh. Comment
  UCD60852  Echinochloa crus-galli H. H. Wernland 1923-10-10 Sonoma Near Bodega. Comment
  UCD60945  Echinochloa crus-pavonis Virginia Bufford 1935-9-8 79 Sonoma Pitkins Yard, Vine Hill District. Comment
  UCD165969  Ehrendorferia chrysantha James A. Neilson Jr. 1975-7-8 3421 Sonoma Mayacmas Mountains. One mile north of Little Geysers. (Exact location unknown. Coordinates and elevation estimated by label maker.) 1097 Comment
  CAS-BOT-BC113731  Eleocharis acicularis var. occidentalis Peter Rubtzoff 1951-7-28 551 Sonoma Pitkin Marsh, near Forestville. Northern half of Lower Marsh. Comment
  CAS-BOT-BC112981  Eleocharis macrostachya Peter Rubtzoff 1951-7-8 387 Sonoma Pitkin Marsh, near Forestville. Lower part of the Upper Marsh. Comment
  UCD49782  Eleocharis macrostachya Mary M. Hektner 1975-6-2 194 Sonoma Unit 28 Owner's Map, Sea Ranch, near State Highway 1, Sonoma County, California. Comment
  CAS-BOT-BC112206  Eleocharis radicans Peter Rubtzoff 1961-8-25 4722 Sonoma Forest Hills, east of Guerneville. Open, wet margin of Russian River. Comment
  CAS-BOT-BC94038  Eleocharis radicans Greg de Nevers 1990-5-15 9667 A Sonoma Pepperwood Natural Preserve 3450 Franz Valley Road 457 Comment
  CAS-BOT-BC112272  Eleocharis rostellata Peter Rubtzoff 1951-7-14 429 Sonoma Pitkin Marsh, near Forestville. Southern half of Lower Marsh Comment
  CAS-BOT-BC257701  Eleocharis rostellata Peter Rubtzoff 1973-9-9 7321 Sonoma Kenwood Marsh. Comment
  UC769909  Elymus glaucus Robert F. Hoover 1941-6-7 5300 Sonoma Molino Comment
  UCD61803  Elymus glaucus Beecher Crampton 1959-6-16 5377 Sonoma 1 mile E of Occidental. Comment
  UCD61858  Elymus glaucus August L. Hormay 1932-6-19 Sonoma Mt. St. Helena. Comment
  UCD62305  Elymus glaucus H. S. Yates 1936-5-16 5585 Sonoma 1 mile N.E. of Graton. 30 Comment
  RSA129232  Elymus glaucus H. S. Yates 1937-6-5 6574 Sonoma 3 miles S.S.E. of Wildwood; Santa Rosa 122 Comment
  CAS-BOT-BC203714  Elymus glaucus subsp. glaucus Peter Rubtzoff 1952-6-11 1251 Sonoma South slope sof Fitch Mtn., near Healdsburg Comment
  CAS-BOT-BC203721  Elymus glaucus subsp. glaucus G. DeNevers 1981-5-9 1097 Sonoma Pepperwood Ranch. S of Redwood Canyon Comment
  JEPS128373  Elymus glaucus subsp. glaucus Roger Raiche 2000-5-4 062 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  RSA129555  Elymus glaucus subsp. virescens H. S. Yates 1936-5-17 5624 Sonoma 1.5 miles E of Bodega Port 122 Comment
  JEPS87224  Emmenanthe penduliflora Jack and Betty Guggolz 1992-5-17 1299 Sonoma On the up side of the Anderson Trail (The west side of the Black Mountain east of Geyserville). 585 Comment
  CAS-BOT-BC165906  Epilobium Peter Rubtzoff 1986-9-28 9746 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville Comment
  UCD167418  Epilobium campestre Peter Rubtzoff 1962-6-21 4940 Sonoma Laguna de Santa Rosa NE of Graton, E of Laguna Road. Comment
  CAS-BOT-BC166618  Epilobium canum subsp. canum Walter Knight; Irja Knight 1963-10-3 497 Sonoma Bennett Valley Comment
  CAS-BOT-BC262961  Epilobium ciliatum subsp. ciliatum Peter Rubtzoff 1968-8-31 5946 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  UCD35654  Epilobium ciliatum subsp. ciliatum Beecher Crampton 1959-6-16 5387 Sonoma 2 miles E of Occidental, Jonive School area. Comment
  RSA155530  Epilobium ciliatum subsp. ciliatum L. S. Rose 1960-9-14 60096 Sonoma Laguna de Santa Rosa, 4 miles NE of Graton 15 Comment
  CAS-BOT-BC262950  Epilobium ciliatum subsp. watsonii Peter Rubtzoff 1954-8-10 1681 Sonoma Bodega Head Marsh. Comment
  CAS-BOT-BC262970  Epilobium ciliatum subsp. watsonii Peter Rubtzoff 1955-8-20 2088 Sonoma Bodega Harbor Marsh. Comment
  CAS-BOT-BC290593  Epilobium ciliatum subsp. watsonii Peter Rubtzoff 1962-6-21 4946 Sonoma Laguna de Santa Rosa area, northeast of Graton, east of Laguna Road. Comment
  CAS-BOT-BC300482  Epilobium ciliatum subsp. watsonii Peter Rubtzoff 1964-6-3 5338 Sonoma Bodega Bay Marsh. Comment
  RSA800030  Epilobium ciliatum subsp. watsonii Peter Rubtzoff 1955-8-20 2088 Sonoma Bodega Harbor Marsh. Comment
  RSA39637  Epilobium ciliatum subsp. watsonii P. A. Munz 1947-10-10 12218 Sonoma 2 miles north of Jenner 30 Comment
  HSC101098  Epilobium densiflorum Peter Warner 2011-8-10 228 Sonoma Jenner Headlands property, Muniz Ranch Rd., about 0.5mi. N from Hwy. 1 intersection. 56 Comment
  CAS-BOT-BC262788  Epilobium hallianum Peter Rubtzoff 1958-5-17 3670 Sonoma Laguna de Santa Rosa, east of Cunningham, near Llano Road. Comment
  SEINET12194282  Epilobium minutum F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -243 Sonoma end of Stoetz Road 200 Comment
  UC19963  Epilobium torreyi H. N. Bolander 1867-1 6535 Sonoma Cloverdale; ; Cloverdale, Sonoma Co. Comment
  UC4499  Epipactis gigantea W. A. Setchell 1897-6-10 Sonoma Cazadero Comment
  CAS-BOT-BC210086  Equisetum Peter Rubtzoff 1964-8-20 5462 Sonoma Americano Creek area, Petaluma-Valley Ford roadside near Bloomfield. Comment
  RSA790976  Equisetum Peter Rubtzoff 1973-9-8 7302 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC173543  Equisetum Peter Rubtzoff 1970-8-25 s.n. Sonoma Austin Creek Marsh. Comment
  UCD135324  Equisetum Donna Allen 1977-5-24 s.n. Sonoma Dry cr. rd. side 15 miles from the coast. Comment
  CAS-BOT-BC57040  Equisetum arvense Peter Rubtzoff 1960-6-9 4477 Sonoma Laguna de Santa Rosa area northeast of Graton, near the Laguna Road Comment
  CAS-BOT-BC57041  Equisetum arvense Peter Rubtzoff 1952-5-10 1023 Sonoma Eastern branch of the Upper Marsh Comment
  CAS-BOT-BC57047  Equisetum arvense Peter Rubtzoff 1958-4-26 3601 Sonoma Laguna de Santa Rosa east of Sebastopol Comment
  CAS-BOT-BC57209  Equisetum hyemale subsp. affine Peter Rubtzoff 1952-5-31 1104 Sonoma Western branch of the Upper Marsh Comment
  CAS-BOT-BC57813  Equisetum laevigatum Dorothy Scherer 1997-5-6 134 Sonoma SE. of Fort Ross Cove picnic area, Fort Ross State Historic Park. 7 Comment
  RSA784474  Equisetum laevigatum Peter Rubtzoff 1959-8-22 4230 Sonoma South Fork Eel River in Edward R. Hickey State Park. Comment
  RSA784475  Equisetum laevigatum Peter Rubtzoff 1961-8-26 4725 Sonoma Vacation Beach, near Guerneville. Banks of Russian River. Comment
  CDA11332  Equisetum telmateia subsp. braunii G. F. Hrusa 1995-4-2 12042 Sonoma North Coast Biodiversity Arena; Franz Valley Rd. approx 3 m. W of Knights Valley intersection with Hwy. 128. Comment
  UCD135619  Equisetum telmateia subsp. braunii Christine Lee 1993-4-24 80 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. 381 Comment
  CAS-BOT-BC312697  Eragrostis Peter Rubtzoff 1970-9-2 6357 Sonoma Russian River bottom at Mirabel Park. Comment
  CAS-BOT-BC320562  Eragrostis Peter Rubtzoff 1965-8-16 5599 Sonoma Russian River bottom at Forest Hills (5.5 miles east of Guerneville). Comment
  CAS-BOT-BC182755  Eragrostis mexicana subsp. virescens Peter Rubtzoff 1958-8-30 3933 Sonoma Vacation Beach, near Guerneville. Comment
  RSA785231  Erechtites glomeratus Peter Rubtzoff 1954-6-20 1514 Sonoma Mays Canyon, ca. 0.5 mi SE of Guerneville. Comment
  CAS-BOT-BC291253  Erechtites minimus John H. Thomas 1976-6-17 18351 Sonoma Near northern end of Sea Ranch, northwestern part of Sonoma County, about 4 miles south of Gualala Comment
  UC1563681  Eremocarpus setiger Barbara Ertter 1988-11-5 8033 Sonoma point below Little Flat parking area (w of bridge, ca 5 air mi due s of Cloverdale); Lake Sonoma 152 Comment
  CAS-BOT-BC131609  Ericameria arborescens Walter Knight; Irja Knight 1963-9-1 133 Sonoma Harold Smith Ranch on Pine Mt. Rd NE of Cloverdale Comment
  UC1299284  Ericameria arborescens Freed W. Hoffman 1946-10-25 1239 Sonoma Wild Hog Ridge between Palmer and Porte Creeks North Coast Ranges, Wild Hog Ridge (metamorphosed sandstone, near Guernville) 457 Comment
  RSA130887  Erigeron biolettii E. K. Balls 1958-7-21 23585 Sonoma Highway 12, 0.5 mile NE from junction with Hwy. 1 at Bridgehaven, along Russian River 30 Comment
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Jun 7 2019
  CAS-BOT-BC295126  Erigeron glaucus John H. Thomas 1976-6-15 18308 Sonoma Southern end of Sea Ranch, northwestern part of county, about 7 miles south of Gualala 30 Comment
  UC31486  Erigeron glaucus Harley P. Chandler 1900-5-25 690 Sonoma Bodega Bay Comment
  UC895875  Erigeron glaucus Marcus E. Jones, A. M. 1882-7-17 3622 Sonoma Duncan's Mills Comment
  POM40212  Erigeron inornatus var. biolettii Marcus E. Jones 1882-7-17 3620 Sonoma Duncan's Mills. Comment
  UC909773  Erigeron philadelphicus var. philadelphicus Milo S. Baker 1950-5-20 12224 Sonoma w side Los Guilicos Valley (near old rr right of way) Comment
  CAS-BOT-BC300248  Erigeron reductus var. angustatus G. DeNevers 1981-6-20 1634 Sonoma Pepperwood Ranch. At the Dentist's Lake Comment
  CAS-BOT-BC224154  Eriodictyon californicum Walter Knight; Irja Knight 1963-10-27 439 Sonoma Spring Mt Road Comment
  CDA11915  Eriodictyon californicum G. F. Hrusa, G. L. Stebbins 1994-4-8 11733 Sonoma North Coast Biodiversity Arena; Cavedale Edaphic Island, Cavedale Rd. approx. 2.7 m E of Hwy 12. Comment
  SD6690  Eriodictyon californicum unknown 1880-6-14 Sonoma Near Sonoma Comment
  CAS-BOT-BC259259  Eriogonum latifolium John Thomas Howell 1930-6-8 5288 Sonoma 8.5 miles n. of Bodega Bay Comment
  POM105430  Eriogonum latifolium Marcus E. Jones 1882-7-17 5 M-11-26 Sonoma Duncan's Mills. Comment
  UC582867  Eriogonum latifolium P. A. Munz 1936-8-7 14305 Sonoma 2 mi n Bodega Comment
  UC6345  Eriogonum latifolium Harley P. Chandler 1900-5-25 699 Sonoma Bodega Bay 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
  UCD100300  Eriogonum luteolum K. Esau 1933-7-8 s.n. Sonoma near Petrified Forest. Comment
  CAS-BOT-BC259478  Eriogonum luteolum John Thomas Howell 1932-9-18 10786 Sonoma Field bordering Sonoma Creek where it enters the level of Sonoma Valley Comment
  UC6525  Eriogonum luteolum var. luteolum Alice King Oct. 1896 Sonoma Healdsburg Comment
  CAS-BOT-BC261690  Eriogonum nudum var. nudum Irja Knight; Walter Knight 1964-11-15 791 Sonoma Hood's Peak on road below Johnson Lake Comment
  UCD100603  Eriogonum nudum var. nudum K. Esau 1932-8-28 s.n. Sonoma near Petrified Forest. Comment
  CAS-BOT-BC262388  Eriogonum vimineum G. DeNevers 1981-6-27 1706 Sonoma Pepperwood Ranch. Summit of Franz Valley Road Comment
  UC31703 Image available Eriophyllum confertiflorum var. confertiflorum Ivar Tidestrom 1905-6-3 Sonoma Comment
  CAS-BOT-BC301147  Eriophyllum lanatum var. achilleoides Volney Rattan 1877-6-22 s.n. Sonoma Healdsburg Comment
  CAS-BOT-BC301159  Eriophyllum lanatum var. achilleoides D. E. Breedlove 1980-6-27 44749 Sonoma Pepperwood Ranch W of Knights Valley Comment
  UC632732  Eriophyllum lanatum var. achilleoides H. L. Mason 1934-4-28 8075 Sonoma 4 mi w Healdsburg (Jensen's Ranch); Head of Dohrman Creek Comment
  SEINET11842964  Eriophyllum lanatum var. achilleoides F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -227 Sonoma end of Stoetz Road 200 Comment
  CAS-BOT-BC301295  Eriophyllum lanatum var. arachnoideum Marcus E. Jones 1882-7-17 2773 Sonoma Duncan's Mills Comment
  JEPS34642  Eriophyllum lanatum var. arachnoideum M. E. and E. Van E. Ferguson Jun 8 1919-Jun 10 1919 250 Sonoma between Gurneville and Monte Rio; Russian River Comment
  RSA603483  Eriophyllum lanatum var. arachnoideum Jens Clausen 1935-5-24 1086 Sonoma 5.1 miles S of Jenner, on the Bodega Road. Comment
  RSA800162  Erodium Peter Rubtzoff 1974-4-17 7372 Sonoma Upper Green Valley Marsh area. Comment
  UCD103082  Erodium botrys Robert F. Thorne 1965-4-19 34265 Sonoma Cotati, Waters Ranch. Comment
  HSC8505  Erodium brachycarpum F. Demostene 1966-4-5 29 Sonoma 1 mi. W of Healdsburg Comment
  UCSB50218  Erodium cicutarium Gray, John 1976-5-1 Sonoma Bluff above Blind Beach; along the Sonoma County coast; T7N RllW 60 Comment
  CDA34797  Erodium moschatum Peter Warner 2010-3-29 124 Sonoma 1670 Bloomfield Road, ~ 3 km south of the center of Sebastopol. Comment
  RSA178011  Erodium moschatum Robert F. Thorne 1965-4-19 34264 Sonoma Cotati, Waters Ranch 30 Comment
  UCD103255  Erodium moschatum A. A. Heller 1902-3-26 5159 Sonoma Near Santa Rosa. Comment
  RSA789044  Erodium obtusiplicatum Carrie A. Herd 1982-3-16 24 Sonoma Santa Rosa, S.W. corner of Fulton & Piner Roads Comment
  SEINET3840777  Eryngium aristulatum G. F. Hrusa 1997-7-5 14010 Sonoma Small vernal pool approximately 200 meters west of Highway 128 in drainage Blossom Creek, 2 kilometers Northwest of Tubbs Lane intersection, Quadrangle: Calistoga 7.5 200 Comment
  UC1122970  Eryngium armatum H. S. Yates 1937-8-22 6867 Sonoma 2 mi. s.e. Forestville; Sebastopol Quad. Comment
  UC20997  Eryngium armatum J. W. Congdon July 1888 Sonoma Petaluma Comment
  CDA20458  Eryngium armatum P. Lane 2003-7-25 PDR P 092137 Sonoma Northwestern California; 1301 Ferguson Rd, Sebastopol. 0 Comment
  UC1931038  Eryngium constancei G. F. Hrusa 1996-10-5 13582 C Sonoma Summit of Mayacmas Range at W end of Diamond Mtn. Rd. +- 2 m SW of Calistoga. 700 Comment
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Jan 8 2013
  UC1931039  Eryngium constancei G. F. Hrusa 1996-10-5 13582 B Sonoma Summit of Mayacmas Range at W end of Diamond Mtn. Rd. +- 2 m SW of Calistoga. 700 Comment
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Jan 8 2013
  UCD127468  Eryngium constancei G. F. Hrusa 1997-7-5 14010 Sonoma approximately 200 meters west of Highway 128 in drainage of Blossom Creek, 2km. northwest of Tubbs Lane int. 200 Comment
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Dec 30 2014
  SEINET3826189 Image available Erysimum concinnum Sally Walker 1983-5-12 s.n. Sonoma Goat Rock Comment
  CAS-BOT-BC366860  Erythranthe guttata Greg de Nevers 1998-3-30 11151 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Along Martin Creek, Handley Flat 400 Comment
  SEINET8370236  Erythranthe microphylla Robert F. Thorne 1965-4-19 34286 Sonoma near county dump on Stoetz Road off of Harrison Grade ca. 2 miles nne of Occidental. 183 Comment
  UCR265137  Erythronium californicum Ann Howald 2015-4-1 3314 Sonoma North Coast Ranges, Stewarts Point-Skaggs Springs Rd, 14.7 miles west of intersection with Rockpile Rd, Wolf Creek drainage 520 Comment
  CAS-BOT-BC502685  Erythronium californicum M. S. Baker 1898-4-5 s. n. Sonoma Gualala River Comment
  RSA785713  Erythronium californicum Carrie A. Herd 1982-3-28 62 Sonoma Scagg Springs Road, near bridge no. 1 Comment
  UC72489  Erythronium californicum Milo S. Baker 1898-4-5 14 Sonoma betw. Skagg's Springs and Gualala River (near summit) Comment
  JEPS128278  Eschscholzia caespitosa Roger Raiche 2005-4-22 015 .05 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  SEINET7067273  Eschscholzia californica A. G. Vestal 1947-5-13 s.n. Sonoma About 0.6 miles east of Annaplis. Coordinate datum: NAD27. Comment
  UC10024  Eschscholzia californica Ivar Tidestrom 1895-6-14 Sonoma Petaluma Comment
  SEINET12193812  Eucalyptus camaldulensis W. Knight, Knight, I.; Howell, J. T. 1984-1 5072 Sonoma intersection Petaluma Ave & Arnold Dr., El Verano Comment
  RSA135386  Euonymus occidentalis Volney Rattan 1877-6-14 s.n. Sonoma Healdsburg. Comment
  JEPS89214  Euonymus occidentalis var. occidentalis Volney Rattan 1877-6-14 Sonoma Guerneville Comment
  CDA34798  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, about 2 NW of Cloverdale. Comment
  CDA34801  Euphorbia oblongata Peter Warner 2010-5-6 142 Sonoma Annadel State Park, North Burma Trail, ~ 500 m W of junction with Richardson Trail; along trail and downslope. Comment
  CAS-BOT-BC310741  Euthamia occidentalis Lewis S. Rose 1960-9-14 60094 Sonoma Laguna de Santa Rosa, 2 mi. e. of Graton 15 Comment
  CAS-BOT-BC354322  Euthamia occidentalis Peter Rubtzoff 1960-9-17 4560 Sonoma Laguna de Santa Rosa east of Graton, between Occidentalis and Guerneville roads. Comment
  CAS-BOT-BC368004  Euthamia occidentalis Greg de Nevers 1989-8-28 9096 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. At Skovie. 400 Comment
  CAS-BOT-BC239715  Fabaceae Peter Rubtzoff; Nancy Harrison 1974-5-26 7472 Sonoma Vernal pool on Bennett Valley Road, 4.25 mi. west of Glen Ellen Comment
  RSA0065935  Festuca Greg de Nevers 1989-04 9062 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd, Santa Rosa. 100 Comment
  CAS-BOT-BC422362  Festuca Peter Rubtzoff 1974-5-25 7455 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC278414  Festuca idahoensis A. A. Heller 1902-5-29 5628 Sonoma Near the summit of Mt. Hood Comment
  UCD151131  Festuca idahoensis James A. Neilson Jr. 1973-6-6 2976 Sonoma Mayacmas Mountains. The Geysers. Site III. [Location of Site III at The Geysers taken from Neilson 3115 which gave the Township/Range of the location. Elevation and coordinates estimated by label maker.] 731 Comment
  CAS-BOT-BC278886  Festuca occidentalis Roxana S. Ferris; Laura Lorraine 1961-6-14 13534 Sonoma Joy Road grade, 1.8 mi. from junction with Bodega Highway Comment
  UCD66116  Festuca occidentalis Beecher Crampton 1955-6-17 2926 Sonoma State Hwy. 12, 1.6 miles west of Forestville. Comment
  UCD66127  Festuca occidentalis P. B. Kennedy 1915-5-31 s.n. Sonoma Stewart's Point - Annapolis Comment
  CAS-BOT-BC279079  Festuca rubra John Thomas Howell 1944-5-14 19485 Sonoma Between Petaluma and Chileno Valley Comment
  CAS-BOT-BC279081  Festuca rubra G. DeNevers 1981-5-30 1348 Sonoma Pepperwood Ranch. On N side of Studio Road at base of hill, near the green Gate Comment
  JEPS41089  Festuca rubra Rimo Bacigalupi, and L. R. Heckard, J. R. Sweeney 1965-5-16 9113 Sonoma between 1 and 1.25 mi due w Napa County line (along the Franz Valley School road) 219 Comment
  UCD66328  Festuca rubra P. B. Kennedy 1918-5-28 Sonoma 8 miles from Santa Rosa, Calistoga - Petrified Forest Road. Comment
  RSA94608  Festuca rubra Peter Rubtzoff 1951-7-7 353 Sonoma Pitkin Marsh, near Forestville; Western branch of the upper marsh. Comment
  UCD66500  Festuca subuliflora B. Crampton 1955-6-17 2961 Sonoma 2 miles east of Fort Ross. Comment
  CAS-BOT-BC353381  Filago Peter Rubtzoff 1971-6-23 6542 Sonoma Vernal pool, 4.25 miles west of Glen Ellen on Bennett Valley Road. Comment
  CAS-BOT-BC354070  Filago Peter Rubtzoff 1963-9-28 5276 Sonoma Fitch Mountain Grove, 2 miles east of Healdsburg. Comment
  UCD113202  Fragaria chiloensis R. H. Miller 1949-4-6 25 Sonoma Coast Route 1, approximately 5 miles south of Jenner. Comment
  UCSB50247  Fragaria chiloensis Gray, John 1976-5-1 Sonoma Bluff above Salmon Creek State Beach. T6N R11W. 18 Comment
  UCD112544  Frangula californica G. F. Hrusa; J. Pfeiffer 1995-9-23 12466 Sonoma N slope of Cavedale Edaphic Island. 400 Comment
  UCD112545  Frangula californica G. F. Hrusa; J. Pfeiffer 1995-9-23 12466 Sonoma N slope of Cavedale Edaphic Island. 400 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
  SBBG33950  Fraxinus latifolia L. S. Rose 1968-6-25 68117 Sonoma Rincon Valley, Brush Crk NE of Santa Rosa 121 Comment
  JEPS55695  Fritillaria M. and A. Ackley 1967-4-26 Sonoma 2/3 way down from summit towards Oakville (Trinity Grade Road); Trinity Grade Road 304 Comment
  CAS-BOT-BC130185  Fritillaria affinis Elmer I. Applegate 1934-3-25 8861 Sonoma Pine Flat region, west slope of the [Mayacama] Mayacmas range Comment
  SEINET12058214  Fritillaria affinis F. H. Utech, Kawano, S.; Ohara, M. 1995-3-26 95 -54 Sonoma 11.5 mi WNW of Lake Sonoma on Skaggs Springs Road along Skaggs Springs Creek Comment
  RSA247212  Fritillaria affinis Gary D. Wallace, Larry E. DeBuhr 1972-3-28 1005 Sonoma Northwest of Calistoga, along Ida Clayton Road, 6 miles from junction with Highway 128 Comment
  CHSC40038  Fritillaria recurva Michener; Bioletti 1893-4-1 Sonoma Hood Peak. Comment
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Jan 1 2012
  UC197239  Fritillaria recurva Michener and Bioletti April 1892 Sonoma Hoods Peak Comment
  CAS-BOT-BC508138  Fritillaria recurva Roger Raiche 1985-4-6 50176 Sonoma West of Healdsburg, ridge on west side of Dry Creek Valley, north of Dorman Canyon up to Bradford Mt. 243 Comment
  CAS-BOT-BC376341  Galium andrewsii Greg de Nevers 1998-6-10 11283 Sonoma Modini Mayacamas Preserves. Pine Flat Road, near end of town of Pine Flat. Comment
  SEINET12271023  Galium divaricatum Unknown 1940-1 1014 Sonoma behind Fountaingrove Vneyard 3 mi N of Santa Rosa along Hwy 101 Comment
  SEINET12333743  Galium murale H. K. Wagnon 1989-1 1882 Sonoma Spring Lake Park & environs, adjacent to Montgomery Drive, edge of service road 67 Comment
  UCD160758  Galium nuttallii James A. Neilson Jr. 1975-5-23 3219 Sonoma Truit Creek on Big Sulphur Creek. (Elevation and coordinates estimated by label maker.) 388 Comment
  CDA18033  Galium parisiense R. Gross 1999-7-8 s.n. Sonoma Mt. St. Helena Spring. 0 Comment
  JEPS87246  Galium porrigens var. porrigens Jack and Betty Guggolz 1992-8-29 1346 Sonoma about 2 mi nnw Camp Meeker 146 Comment
  UC1348904  Galium porrigens var. porrigens Robert F. Thorne 1965-4-19 34284 Sonoma on Stoetz Road near county dump (off Harrison Grade, ca 2 mi nne of Occidental) 182 Comment
  UCD121901  Galium porrigens var. porrigens Frederica Bowcutt 1994-5-21 1831 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 N of Kenwood. Along Hillside Trail past the junction with Digger Pine trail approx. 1/4 mile. 411 Comment
  UCD121907  Galium porrigens var. tenue Botany 102 Students 1993-5-8 268 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. In Adobe Canyon N of Sugarloaf Ridge. Bald Mountain Trail about 110 ft. above parking lot. About 1 air mile S of Red Mountain, N of Sonoma Creek. Comment
  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
  UCR255027  Gamochaeta pensylvanica Greg de Nevers 1993-5-30 10463 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  UCD165160  Gamochaeta ustulata Peter Rubtzoff 1974-5-25 7458 Sonoma Upper Green Valley Marsh. Comment
  RSA170011  Garrya elliptica Robert F. Thorne, P. C. Everett 1964-10-21 34218 Sonoma Ten miles north of Fort Ross along Highway 1 and 0.1 mile north of Kruse Rhododendron Reserve. 61 Comment
  UC727755  Garrya fremontii Milo S. Baker 1946-2-9 11263 Sonoma Hope Valley Kenwood Region (near Chamberlain Place) Comment
  RSA0055007  Garrya fremontii James R. Shevock 1972-3-28 1487 Sonoma Ida Canyon road near Mt. Helena. 609 Comment
  SEINET12137589  Garrya fremontii W. Knight, Knight, I.; Edwards, S. 1986-1 5359 Sonoma along trail to summit of Geyser Peak, access from Healdsburg-Geysers Rd 869 Comment
  CAS-BOT-BC278683  Gastridium phleoides G. DeNevers 1981-9-12 1843 Sonoma Pepperwood Ranch. On Mark West Creek, at confluence with Leslie Creek Comment
  HSC101100  Gastridium phleoides Peter Warner 2011-8-10 229 Sonoma Jenner Headlands property, Muniz Ranch Rd., about 0.5 mi. N from Hwy. 1 intersection. 55 Comment
  SEINET4571745  Gastridium phleoides L. Koch 1940-4-22 837 Sonoma Grassy hills above Sulfur Creek Geysers Comment
  UCD66718  Gastridium phleoides Freed W. Hoffman 1941-6-3 2076 Sonoma Near Guerneville. 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
  UCD160843  Genista monspessulana James A. Neilson Jr.; Teresa A. Sholars 1975-6-20 3375 Sonoma Section 10, One-quarter mile west of Eagle Rock on Geysers Road, The Geysers. (Elevation and coordinates estimated by label maker) 457 Comment
  RSA28626  Gentiana affinis Annetta Carter, E. K. Crum 1941-6-22 1638 Sonoma 3.3 miles E of Bay (Bodega Bay). 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
  UCD103320  Geranium dissectum Frederica Bowcutt 1994-5-21 1825 b Sonoma Sugarloaf Ridge State Park. About 40 air miles N of San Francisco, 11 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood. Along Meadow trail about 3/4 mile from trailhead. East from trail about 100 yards. 396 Comment
  UCD55068  Geranium purpureum Ellen Dean; Tammie Beyerl 2006-4-28 3012 Sonoma Town of Kenwood. East side of Hwy. 12. Kunde Vineyards. Vicinity of Pepperwood Lake Reservoir. 177 Comment
  UCD160142  Gilia capitata James A. Neilson Jr. 1973-6-7 3045 Sonoma Mayacmas Mountains. Big Geysers. (Elevation estimated using Google Earth by label maker.) 548 Comment
  CAS-BOT-BC361360  Gilia capitata Greg de Nevers 1997-4-16 10937 Sonoma Cavedale Road Area burned Sept. 1996 152 Comment
  UC1299524  Gilia capitata subsp. capitata Freed W. Hoffman 1947-6-4 510 Sonoma upper reaches East Austin Creek North Coast Ranges, East Austin Creek, Rocky Mountain (Rocky Mountain) Comment
  UC73644  Gilia capitata subsp. capitata Milo S. Baker 1898-6-1 593 Sonoma Santa Rosa Cemetary Comment
  CAS-BOT-BC225279  Gilia capitata subsp. chamissonis Peter Rubtzoff 1960-5-18 4384 Sonoma Bodega Harbor Marsh Comment
  CAS-BOT-BC225281  Gilia capitata subsp. chamissonis Verne Grant; Alva Grant 1948-7-7 8598 Sonoma Sand dunes near Highway 1, eleven miles north of Bodega Comment
  UC907883  Gilia capitata subsp. pacifica Herbert L. Mason 1928-7-10 4886 Sonoma Jenner Comment
  UCD117852  Gilia millefoliata P. G. Connors 1992-4-28 243 Sonoma Bodega Marine Laboratory, in Old North Dune. Comment
  CAS-BOT-BC266522  Githopsis diffusa Peter Rubtzoff 1957-5-26 3354 Sonoma Near Occidental - Graton road, 2.7 miles E of Occidental Comment
  RSA436246  Githopsis specularioides P. H. Raven 1965-5-16 20217 Sonoma Near Frantz District School Comment
  CAS-BOT-BC227639  Glyceria Peter Rubtzoff 1966-5-7 5707 Sonoma North side of Hessel Road, just west of Hwy. 116. Comment
  RSA94607  Glyceria leptostachya Peter Rubtzoff 1951-6-9 187 Sonoma Northern half of Lower Marsh; Pitkin Marsh, near Forestville. Comment
  CAS-BOT-BC166679  Gnaphalium chilense Peter Rubtzoff 1958-8-23 3927 Sonoma Laguna de Santa Rosa, east of Cunningham (near Llano Road). Comment
  CAS-BOT-BC166784  Gnaphalium palustre Peter Rubtzoff 1958-7-19 3766 Sonoma Laguna de Santa Rosa, east of Sebastopol. Comment
  CAS-BOT-BC302695  Gnaphalium palustre Peter Rubtzoff 1958-7-5 3736 Sonoma Atascadero Creek Marsh. Comment
  CAS-BOT-BC166778  Gnaphalium purpureum Peter Rubtzoff 1974-5-25 7458 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC166709  Gnaphalium purpureum Peter Rubtzoff 1963-6-22 5186 Sonoma Bennett Mountain Lake. Comment
  CDA6007  Gnaphalium purpureum G. D. Barbe 1982-5-27 3626 Sonoma 3.6 miles east of Stewarts Point (Highway 1) on Scaggs Spring Road. Comment
  CAS-BOT-BC164095  Grindelia Peter Rubtzoff 1963-7-14 5205 Sonoma Laguna de Santa Rosa, E of Graton. Comment
  CAS-BOT-BC305176  Grindelia hirsutula John Thomas Howell 1930-6-8 5223 Sonoma 8 miles w. of Petaluma on Bodega Road Comment
  CAS-BOT-BC305198  Grindelia hirsutula Marcus E. Jones 1931-7-5 29142 Sonoma The Geysers Comment
  UC583035  Grindelia hirsutula P. A. Munz 1936-8-7 14306 Sonoma 2 mi n of Bodega (sea bluffs) Comment
Read comments
Feb 6 2013
  CDA2098  Hainardia cylindrica Gordon Leppig 2000-5-6 1345 Sonoma Austin Creek State Recreation Area, Austin Creek Trail Comment
  HSC94161  Hainardia cylindrica Gordon Leppig 2000-5-6 1345 Sonoma Austin Creek Trail. 177 Comment
  CAS-BOT-BC306325  Hedypnois cretica G. DeNevers 1981-5-26 1330 Sonoma Pepperwood Ranch. Garrison Canyon Comment
  CAS-BOT-BC306769  Helenium bigelovii Peter Rubtzoff 1951-6-7 114 Sonoma Pitkin Marsh, near Forestville. Uppermost part of the western branch of the Upper Marsh Comment
  RSA71062  Helenium bigelovii L. S. Rose 1951-6-7 51014 Sonoma Pitkin Marsh, 5 miles N of Sebastopol. Comment
  CAS-BOT-BC262985  Helenium puberulum Peter Rubtzoff 1958-7-26 3796 Sonoma Laguna de Santa Rosa, east of Sebastopol. Comment
  CAS-BOT-BC268129  Helenium puberulum Peter Rubtzoff 1958-8-23 3910 Sonoma Laguna de Santa Rosa, east of Cunningham, near Llano Road. Comment
  RSA800282  Helenium puberulum Peter Rubtzoff 1957-8-18 3524 Sonoma Vacation Beach, near Guerneville, along Russian River. Comment
  POM54893  Helenium puberulum A. A. Heller 1902-7-1 5795 Sonoma Lagoon at Sebastopol Comment
  CAS-BOT-BC305582  Helianthus bolanderi R. Bacigalupi 1948-3-6 2583 Sonoma The Geysers, just above the resort Comment
  UCD158804  Helianthus bolanderi James A. Neilson Jr. 1974-3-27 2942 Sonoma Mayacmas Mountains. Big Geysers. (Elevation estimated using topo map by label maker.) 548 Comment
  CAS-BOT-BC305966  Helminthotheca echioides Alice Eastwood 1921-7-20 10619 Sonoma On road between Cotati and Santa Rosa Comment
  CAS-BOT-BC257689  Hemizonia Peter Rubtzoff 1958-8-23 3921 Sonoma Laguna de Santa Rosa, east of Cunningham (near Llano Road). Comment
  UCR255883  Hemizonia Greg de Nevers 1996-11-10 10892 Sonoma Just north of Hwy 37, opposite Port Sonoma, Lower Ranch 1 Comment
  CAS-BOT-BC257985  Hemizonia Peter Rubtzoff 1962-10-23 5120 Sonoma Laguna de Santa Rosa, east of Cunningham (near Llano Road). Comment
  CAS-BOT-BC258906  Hemizonia Peter Rubtzoff 1961-8-24 4703 Sonoma Fife Creek Marsh. Comment
  CAS-BOT-BC305995  Hemizonia Peter Rubtzoff 1966-8-25 5804 Sonoma Laguna de Santa Rosa east of Graton, between Occidental and Guerneville Roads Comment
  RSA796177  Hemizonia Peter Rubtzoff 1966-8-25 5804 Sonoma Marshes: Laguna de Santa Rosa east of Graton, between Occidental and Guerneville Roads. Comment
  RSA159433  Hemizonia congesta James I. McMurphy 1909-8-8 701 Sonoma Leddy Station between Santa Rosa and Sebastopol. Comment
  UCSC000757  Hemizonia congesta subsp. clevelandii M. Alice King October 1896 s.n. Sonoma near Healdsburg Comment
  RSA14739  Hemizonia congesta subsp. clevelandii L. S. Rose 1935-9-11 35622 Sonoma 2 mi N of Healdsburg. 40 Comment
  CAS-BOT-BC306226  Hemizonia congesta subsp. congesta John Thomas Howell; J. W. Stacey 1936-7-26 12672 Sonoma Pitkin Marsh, 5 miles n. of Sebastopol Comment
  UC197506  Hemizonia congesta subsp. congesta H. M. Hall 1916-7-23 10240 Sonoma 4 mi nw Petaluma; San Francisco Bay Region 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-BC309690  Hemizonia congesta subsp. lutescens J. McMurphy 1909-8-8 s.n. Sonoma Leddy Station, between Santa Rosa and Sebastopol Comment
  UC1392842  Hemizonia congesta subsp. lutescens R. F. Hoover 1969-8-31 11567 Sonoma near Petaluma; Adobe Road and Casa Grande Road Comment
  UC523538  Hemizonia congesta subsp. lutescens David D. Keck 1933-11-6 2652 Sonoma 0.5 mi s Jenner Comment
  UC897704  Hemizonia congesta subsp. lutescens Milo S. Baker 1932-10-1 6052 Sonoma along College Ave. Hwy., the Laguna border Comment
  CAS-BOT-BC309667  Hemizonia congesta subsp. lutescens J. McMurphy 1909-7-10 504 Sonoma 4 miles north of Cloverdale Comment
  CAS-BOT-BC309949  Hemizonia congesta subsp. luzulifolia Joseph P. Tracy 1930-9-1 9173 Sonoma North Coast Ranges. Knight's Valley Comment
  CAS-BOT-BC309957  Hemizonia congesta subsp. luzulifolia L. R. Abrams 1907-8-1 s.n. Sonoma Santa Rosa Comment
  RSA791599  Hemizonia congesta subsp. luzulifolia A. Howald 2011-8-28 2804 Sonoma North Coast Ranges: west slope of Mayacamas Mountains, Los Alamos Road at Cougar Lane, 2.3 miles east of intersection Hwy 12 329 Comment
  SEINET4560744  Hemizonia congesta subsp. luzulifolia Ann Howald 2011-1 2807 Sonoma North Coast Ranges: Sonoma Valley, Felder Creek drainage, west side of Macabee Rd., 0.2 mi. north of Felder Rd., west of Arnold Dr. 34 Comment
  SD53366  Hemizonia congesta subsp. luzulifolia Darley F. Howe 1962-7-28 3361 Sonoma Mark West Creek, 3.4 miles east of Highway 101. Comment
  RSA81567  Hemizonia lutescens James I. McMurphy 1909-8-9 714 -B Sonoma 4.5 miles S of Santa Rosa. Comment
  OBI77797  Heracleum maximum David J. Keil 1983-6-29 17194 Sonoma 5 mi N of Bodega Bay along hwy 1 Comment
  JEPS29497  Hesperevax sparsiflora var. sparsiflora W. L. Jepson 1921-6-3 9306 Sonoma s Santa Rosa (near Wilfred Station, in a flat in the Cotati Valley, on the Northwestern Pacific Ry); Cotati Valley 28 Comment
  CAS-BOT-BC310215  Hesperevax sparsiflora var. sparsiflora D. E. Breedlove 1976-3-27 39443 Sonoma Along Dry Creek Road about 3 miles past Warm Springs Road Comment
  LA6482  Hesperocyparis goveniana Milo S. Baker; March 1933 7562 Sonoma near summit of Harrison's Grade near Occidental Comment
  POM8863  Hesperolinon micranthum Michener, Bioletti 1893-06 1411 Sonoma Hoods Peak. Comment
  UC1212386  Hesperolinon spergulinum Helen K. Sharsmith 1952-6-17 4125 Sonoma ca 1 mi beyond origin of Pine Flat road in Alexander Valley (slopes of Saysal Creek canyon); Inner North Coast Ranges, Mayacamas Range, Saysal Creek 182 Comment
  UCD151299  Hesperolinon spergulinum James A. Neilson Jr. 1974-7-24 2967 Sonoma Mayacmas Mountains. One-half mile south of Little Geysers. (Elevation estimated by label-maker using topo map.) 792 Comment
  CAS-BOT-BC149833  Heteromeles arbutifolia Walter Knight; Irja Knight 1964-11-15 771 Sonoma Above Johnson Dam, Hood's Peak Comment
  UC1128116  Heteromeles arbutifolia J. B. Spring, R. W. Lundh 1932-7-8 101 Sonoma 1 mi n Sonoma; Napa Quad. 152 Comment
  UCD102191  Heteromeles arbutifolia Daniel Sanchez-Mata; Tomas Santamaria 2008-7-13 s.n. Sonoma Healdsburg. Alexander Valley. Pine Flat Road to the Geysers Area. Audubon Sanctuary. 400 Comment
  UCD133084  Heterotheca sessiliflora subsp. bolanderi Mary M. Hektner 1976-9-16 269 Sonoma below south end of yardarm Drive, Unit 15 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC311221  Heterotheca sessiliflora subsp. echioides Peter Rubtzoff 1975-8-16 8329 Sonoma Annadel State Park. Near trail between Bennett Mtn. Lake and Bennett Ridge Road (south of Bennett Mtn. Lake) Comment
  UCD102637  Heuchera micrantha Frederica Bowcutt 1996-5-23 2147 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. Toe of Sugarloaf Ridge, just S of campground. Comment
  CAS-BOT-BC420942  Heuchera micrantha var. diversifolia D. E. Breedlove 1980-6-27 44763 Sonoma Pepperwood Ranch W of Knights Valley Comment
  UC858023  Heuchera micrantha var. erubescens Alice Eastwood 1915-6-5 4577 Sonoma Petrified Forest Comment
  POM253357  Heuchera pilosissima A. A. Heller 1938-5-14 s.n. Sonoma S end of Bodega Bay Comment
  SEINET12221839  Heuchera pilosissima F. H. Utech 1988-5-21 88 -221 Sonoma Salt Point, along CA 1 between Tenner & Stewart's Point 75 Comment
  CAS-BOT-BC319709  Hieracium albiflorum Volney Rattan 1877-6-15 s.n. Sonoma Guerneville Comment
  UC496386  Hieracium albiflorum Merle Randall 1930-6-8 Sonoma Cazadero Comment
  UCD160127  Hieracium albiflorum James A. Neilson Jr. 1973-6-6 3559 Sonoma Mayacmas Mountains. The Geysers. Site III. [Location of Site III at The Geysers taken from Neilson 3115 which gave the Township/Range of the location. Elevation and coordinates estimated by label maker.] 731 Comment
  CDA10945  Hierochloe occidentalis G. F. Hrusa, G. L. Stebbins 1994-3-28 11703 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. Perennial. Shade of redwoods. Comment
  UC866224  Hoita macrostachya Lewis S. Rose 1933-9-3 33358 Sonoma 2 mi w Petrified Forest 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
  UC65194  Holcus lanatus A. A. Heller 1902-6-7 5651 Sonoma Santa Rosa Comment
  UCD84887  Holcus mollis Terri Williamson 1990-5-20 63 Sonoma Bayflat Road. Bodega Bay. 3 Comment
  CAS-BOT-BC320404  Holocarpha virgata James I. McMurphy 1906-7-17 s.n. Sonoma Fulton Comment
  JEPS128299  Holodiscus dumosus var. cedrorum Roger Raiche 2010-6-16 021 .10 Sonoma The Cedars, Campbell Ranch. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC315811  Holozonia filipes James I. McMurphy 1906-7-21 s.n. Sonoma Fulton Comment
  SEINET257718 Image available Hordeum brachyantherum M. Barkworth, D Amme 1989-6-15 5173 Sonoma South end of Bodega Head on restored grassland. 81 Comment
  CAS-BOT-BC289292  Hordeum brachyantherum subsp. brachyantherum Peter H. Raven 1950-4-6 1557 Sonoma Cotati to Santa Rosa 45 Comment
  UCD85368  Hordeum brachyantherum subsp. brachyantherum Beecher Crampton 1955-4-5 2401 Sonoma 2 miles north of Healdsburg, along US Highway 101. 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-BC285194  Hordeum marinum subsp. gussoneanum Peter Rubtzoff 1961-5-24 4595 Sonoma Upper Stemple Creek Marsh Comment
  UCD85897  Hordeum marinum subsp. gussoneanum R. Tofsrud 1949-4-1 s.n. Sonoma Fulton. Comment
  CAS-BOT-BC285191  Hordeum marinum subsp. gussoneanum K. Wagnon 1939-5-16 204 Sonoma Entrance of Rd. 9, 14 miles west of Sebastopol on Bodega Highway Comment
  POM205106  Hordeum murinum subsp. leporinum A. A. Heller 1902-4-11 5278 Sonoma Bodega Bay. Comment
  UC1596333  Hordeum murinum subsp. leporinum Richard R. Halse 1987-2-22 3375 Sonoma along State Highway 121 .4 mi e of its junction with State Highway 116 at Big Bend in the Sonoma Valley 6 Comment
  CAS-BOT-BC282019  Hordeum murinum subsp. leporinum Jack Guggolz; Betty Guggolz 1991-6-1 1163 Sonoma Collected between Blank Rd and Highway 116 and S of Hessel Rd, S of Sebastapol 38 Comment
  RSA128792  Hordeum vulgare P. H. Raven 1950-4-6 1556 Sonoma Cotati to Santa Rosa. 30 Comment
  RSA611288  Horkelia californica Joseph A. Ewan 1935-5-12 9198 Sonoma 2 miles west of Bodega, on Bodega Bay Road Comment
  CDA11293  Horkelia tenuiloba G. F. Hrusa 1994-6-14 11889 Sonoma North Coast Biodiversity Arena; W of Hogback Mtn. Point of main ridge separating headwaters of Nathanson Creek and Agua Caliente Creeks. Comment
  JEPS21577  Horkelia tenuiloba Lauramay T. Dempster 1958-5-24 1106 Sonoma along road Vine Hill district Comment
  JEPS97512  Horkelia tenuiloba Dean Schlichting 2000-5-31 Sonoma 1/2 mi E of Annapolis Comment
  UCD110316  Hypericum calycinum Frederica Bowcutt 1984-6-24 463 Sonoma Salt Point State Park. Approx. 20 miles N of Jenner and 80 miles S of Fort Bragg on the Sonoma county coast. Old home site near existing barn just of park road. Northwest of Gerstle Cove approx. 1/2 mile. 30 Comment
  CAS-BOT-BC410825  Hypericum concinnum D. E. Breedlove 1980-6-28 44803 Sonoma Pepperwood Ranch W of Knights Valley Comment
  CDA31270  Hypericum concinnum D. G. Kelch, Ed Biffin 2010-5-3 10 .191 Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  SEINET11987351  Hypericum concinnum W. Knight, Knight, I. 1981-1 Sonoma 4.1 mi up Cavedale Road from jct of state rt. 12 Comment
  CAS-BOT-BC401293  Hypericum perforatum D. E. Breedlove 1962-6-6 2898 Sonoma Along State Highway 128, 1.5 miles northwest of U. S. Highway 101 at Cloverdale 121 Comment
  CAS-BOT-BC316686  Hypochaeris glabra Greg de Nevers 1987-4-25 8157 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Rd., Santa Rosa 400 Comment
  UCD148322  Hypochaeris glabra Peter Rubtzoff 1953-11-1 1429 Sonoma Vacation Beach, near Guerneville. Comment
  UCD159436  Hypochaeris radicata D. S. Park; S. Nicole, M. Armijos, H. Sandhu 2010-8-3 194 Sonoma Abandoned volleyball court/field. Disturbed. 8 Comment
  SDSU11765  Iris douglasiana D. F. Howe 1963-5-23 3533 Sonoma 4.5 miles north of Cloverdale on #128. 366 Comment
  SEINET12048687  Iris douglasiana F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -156 Sonoma Bridgehaven, near junction of Willow Creek Road & CA 1 along Russian River 37 Comment
  SEINET12048683  Iris fernaldii F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -106 Sonoma ca 4 mi NNW of Sonoma on Cavedale Road from junction with CA 12, ca 1.6 mi N of Cavedale Rd from jct 457 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-BC182769  Isoetes Peter Rubtzoff 1971-6-5 6514 Sonoma Dry bed of vernal pool, 4.25 miles west of Glen Ellen on Bennett Valley Road. Comment
  CAS-BOT-BC57734  Isoetes howellii Greg de Nevers 1992-6-16 10165 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road 304 Comment
  UC810503  Isoetes howellii John Thomas Howell 1937-6-6 13015 Sonoma Sebastopol Comment
  CAS-BOT-BC61923  Isoetes nuttallii Peter Rubtzoff 1951-6-7 138 Sonoma Western branch of the Upper Marsh Comment
  CAS-BOT-BC112412  Isolepis carinata John Thomas Howell 1957-6-13 32620 Sonoma Pitkin Marsh Comment
  UCD150848  Isolepis carinata Ayzik Solomescsh 2009-5-14 s.n. Sonoma 2.3 km. southeast of city of Sebastopol. Santa Rosa Plain, Cooper Site, pool 1. Elevation estimated from Google Earth by label maker. 22 Comment
  CAS-BOT-BC112564  Isolepis cernua John Thomas Howell 1937-6-6 13027 A Sonoma Pitkin Marsh Comment
  CAS-BOT-BC101889  Juglans californica Peter Rubtzoff 1986-8-31 9736 Sonoma On river bank off Summerhome Park Road 0.2 mile west of Forest Hills Road Comment
  CAS-BOT-BC322125  Juncus arcticus Peter Rubtzoff 1963-6-6 5170 Sonoma Laguna de Santa Rosa, east of Graton. Comment
  UC1042427  Juncus balticus Peter Rubtzoff 1951-7-7 368 Sonoma near Forestville (e branch of the upper marsh); Pitkin Marsh Comment
  UCD164998  Juncus bolanderi Peter Rubtzoff 1974-9-7 7882 Sonoma Hinebaugh Creek in Rohnert Park, creek bed east of Commerce Blvd. crossing. Comment
  UCD141316  Juncus bolanderi Mary M. Hektner 1976-8-26 265 Sonoma Unit 28 Owner;s Map, Sea Ranch, near State Highway 1. Comment
  JEPS30835  Juncus breweri Rimo Bacigalupi, and L. R. Heckard 1962-6-19 8591 Sonoma just n Horseshoe Cove ((indicated on Bodega Head U.S.G.S. Sheet as depressed contour)); Bodega Head Comment
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Dec 13 2006
  UCD141367  Juncus bufonius Frederica Bowcutt 1984-6-23 431 a Sonoma Salt Point State Park. Approx. 20 miles N of Jenner and 80 miles S of Fort Bragg along Sonoma County Coast. Immed. SW of park entrance, W of Hwy 1 and NW of Gerstle Cove along park road. 30 Comment
  UCD141358  Juncus bufonius J. Adams; J. Weick, Bot. 102 1993-5-8 281 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
  RSA94318  Juncus bufonius var. bufonius Peter Rubtzoff 1951-7-14 445 Sonoma Pitkin Marsh, near Forestville. Southern half of lower marsh. Comment
  UCR279885  Juncus dubius Peter Rubtzoff 1972-6-27 6792 Sonoma Atascadero Creek Marsh 29 Comment
  UCR279884  Juncus effusus Peter Rubtzoff 1964-7-29 5454 Sonoma Central Coast, Duncan Mills Marsh 2 Comment
  RSA785889  Juncus effusus Peter Rubtzoff 1964-7-29 5454 Sonoma Duncans Mill Marsh. Comment
  UCD144658  Juncus effusus subsp. pacificus Frederica Bowcutt 1994-5-1 1781 Sonoma Sugarloaf Ridge State Park. About 40 air miles N of San Francisco,10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood. Campground S of Sonoma Creek about 150 yards. 1/4 mile NW of confluence with Rattlesnake Creek, toe of Sugarloaf Ridge. 350 Comment
  UCD165113  Juncus effusus subsp. pacificus Peter Rubtzoff 1973-9-9 7324 Sonoma Kenwood Marsh. Comment
  RSA785888  Juncus effusus var. brunneus Peter Rubtzoff 1963-7-27 5213 Sonoma Duncans Mills Marsh. Comment
  UCD167419  Juncus hesperius Peter Rubtzoff 1964-8-3 1634 Sonoma Lower Salmon Creek Marsh. Comment
  RSA789174  Juncus hesperius Peter Rubtzoff 1969-8-14 6137 Sonoma Coleman Marsh. Comment
  RSA789175  Juncus laccatus Peter Rubtzoff 1968-7-13 5919 Sonoma Upper Salmon Creek Marsh. Comment
  CAS-BOT-BC290568  Juncus lescurii Peter Rubtzoff 1954-8-9 1665 Sonoma Bodega Head Marsh. Comment
  CAS-BOT-BC290569  Juncus lescurii Peter Rubtzoff 1959-6-20 4179 Sonoma Willow Creek Marsh. Comment
  RSA94317  Juncus mexicanus Peter Rubtzoff 1951-9-2 717 Sonoma Pitkin Marsh, near Forestville. South of the Upper Marsh. Comment
  UCD141617  Juncus nevadensis Frederica Bowcutt 1997-7-18 2182 a Sonoma Sugarloaf Ridge State Park, about 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Just south of midpoint between Mt. Hood and Red Mountain. Road on ridge west of Bear Creek. 365 Comment
  JEPS67108  Juncus occidentalis W. L. Jepson 1921-6-2 9299 Sonoma w of Windsor Comment
  UC1133689  Juncus occidentalis H. S. Yates 1936-5-16 5586 Sonoma 2 mi se Forestville; Pitkin Marsh, Sebastopol Quad. 30 Comment
  UC143749  Juncus occidentalis A. A. Heller 1902-6-2 5634 Sonoma Santa Rosa Comment
  UCD141648  Juncus occidentalis M. Wiesendanger 1927-5-5 713 Sonoma Sonoma. Comment
  RSA94073  Juncus orthophyllus J. T. Howell 1945-7-18 21329 Sonoma Pitkin Marsh Comment
  CDA39261  Juncus phaeocephalus T. C. Fuller & D. L. Bristow 1957-12-17 s.n. Sonoma Horn Ave., south of Santa Rosa. 0 Comment
  CAS-BOT-BC235900  Keckiella corymbosa Rimo Bacigalupi 1947-8-17 2850 Sonoma On dirt road just above and east of Cazadero, (County road to Guernewood Park), in canyon of Austin Creek Comment
  UC1238930  Keckiella corymbosa Freed W. Hoffman 1947-8-9 1431 Sonoma e of Cazadero (near East Austin Creek); North Coast Ranges Comment
  SEINET12333747  Kickxia elatine W. Knight, Wagnon, K. 1987-1 s.n. Sonoma Willow Creek between Corona Rd & Old Redwood Highway 6 Comment
  UC1011011  Koeleria macrantha Virginia Bufford 1936-5-20 334 Sonoma Kellogg-Mark West Rd 3 mi from Kellogg Comment
  UC1153919  Koeleria phleoides Beecher Crampton 1957-5-16 4038 Sonoma Hot Springs Road 3 mi sw Cloverdale Comment
  CAS-BOT-BC273790  Koeleria pyramidata Peter Rubtzoff 1952-6-1 1136 Sonoma Fitch Mtn. Grove, nr. Healdsburg Comment
  UC1299463  Lactuca saligna Freed W. Hoffman 1946-8-23 797 Sonoma Comment
  SEINET10589342  Lagurus Alan A. Beetle 1941-7-8 Beetle 2856 Sonoma 1 mile north of Steward Point, open coastal bluffs. Assoc. Sedum, Phacelia. Comment
  CAS-BOT-BC274320  Lagurus ovatus John H. Thomas 1976-6-15 18228 Sonoma Southern end of the Sea Ranch, northwestern part of county, about 7 miles south of Gualala 30 Comment
  CDA2216  Lagurus ovatus A. A. Beetle 1941-7-8 2856 Sonoma 1 mile north of Stewart s ( Steward ) Point Comment
  SD34488  Lagurus ovatus A. A. Beetle 1941-7-8 2856 Sonoma 1 mile north of Steward Point, open coastal bluffs Comment
  UCD63273  Lagurus ovatus A. A. Beetle 1941-7-8 2856 Sonoma 1 mile north of Steward Point. Comment
  UCD63406  Lamarckia aurea R. Tofsrud 1948-6-1 Sonoma NE Sonoma County. Comment
  CAS-BOT-BC486688  Lamiaceae Peter Rubtzoff 1964-5-20 5322 Sonoma Bodega Bay Marsh Comment
  UC66154  Lamium amplexicaule A. A. Heller 1902-6-7 5658 Sonoma Santa Rosa Comment
  UCD125066  Lamium purpureum Caitlin Lewis; William Mutch 1993-4-17 23 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
  CAS-BOT-BC324927  Lasthenia burkei Peter Rubtzoff 1974-5-26 7492 Sonoma Todd Road 1.5 mi. from Hwy. 116 and 0.5 mile from (west of) Llano Road Comment
  JEPS10010  Lasthenia burkei W. L. Jepson 1921-6-2 9303 Sonoma nw of Windsor (just e of the Calhoun Ranch) Comment
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Nov 13 2007
  JEPS83490  Lasthenia burkei Jack and Betty Guggolz 1985-4-29 827 702 B Sonoma almost exactly 1.0 mi e of the e side Sebastapol (across the fence w from the duck pond, on the Carinelli Property, Llano de Santa Rosa Rancho) Comment
  UCD150130  Lasthenia burkei Ayzik Solomeshch 2009-5-11 s.n. Sonoma Northwest of the city of Santa Rosa, S of River Rd and W of Fulton Rd. Just N of Wood Rd. Sampling pool #4. 44 Comment
  RSA0008548  Lasthenia burkei Peter Rubtzoff 1963-6-6 5165 Sonoma Laguna de Santa Rosa, east of Graton Comment
  UCD136284  Lasthenia californica M. Rei Scampavia Evangelista 2012-5-4 2 Sonoma Santa Rosa. From the intersection of Franz Valley Road and the entrance to Pepperwood Preserve, travel down Pepperwood Road towards the Visitor Center. Take a left at the sign for the Betchel House. Follow signs on dirt roads that direct towards Three Tree Hill. Park at the top of Three Tree Hill, then take a bearing of 280 degrees for 260 meters. 408 Comment
  CAS-BOT-BC346329  Lasthenia californica John H. Thomas 1976-6-15 18305 Sonoma Southern end of Sea Ranch, NW part of county, about 7 miles south of Gualala Comment
  UC76020  Lasthenia californica subsp. bakeri Milo S. Baker 1899-5-6 Sonoma near Sebastopol Comment
  SEINET11807292  Lasthenia chrysostoma F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -231 Sonoma end of Stoetz Road 200 Comment
  JEPS73356  Lasthenia glaberrima Edward Lee with Joe Ewan and Annetta Carter 1934-4-30 752 Sonoma 1 mi w Two Rock junction Comment
  RSA177051  Lasthenia glaberrima Peter H. Raven 1963-4-28 18254 Sonoma 4.7 miles south of El Verano on Arnold Drive. Comment
  CAS-BOT-BC352789  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
  POM361574  Lasthenia macrantha subsp. macrantha J. T. Howell 1931-4-18 6425 Sonoma 8 miles N of Bay Comment
  UC584181  Lasthenia minor J. Clausen 1935-5-24 1084 Sonoma 5 mi s of Jenner Comment
  UC726106  Lasthenia minor A. A. Heller 1940-5-17 15628 Sonoma n of the town of Bay; Bodega Bay Comment
  POM54989  Lasthenia minor A. A. Heller, H. E. Brown 1902-4-11 5276 Sonoma Bodega 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
  CAS-BOT-BC164389  Lathyrus Peter Rubtzoff 1972-5-25 6769 Sonoma Laguna, Chileno Valley Comment
  UCD150835  Lathyrus hirsutus 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
  CDA4178  Lathyrus hirsutus T. C. Fuller 1969-10-1 18964 Sonoma Two different ranches north & south of Santa Rosa. 0 Comment
  UCR244751  Layia Peter Rubtzoff 1969-6-15 6085 Sonoma Laguna de Santa Rosa, c. 1 mile ESE of Sebastapol 21 Comment
  CAS-BOT-BC323227  Layia chrysanthemoides David D. Keck 1931-4-2 997 Sonoma Boyes Springs. 30 Comment
  CAS-BOT-BC323257  Layia chrysanthemoides Alice Eastwood 1921-4-24 10395 Sonoma Santa Rosa Comment
  SEINET7067252  Layia chrysanthemoides 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
  RSA0001358  Layia chrysanthemoides subsp. maritima Jens Clausen 1935-5-24 1090 Sonoma 6.2 mi. S. of Jenner Comment
  CAS-BOT-BC379621  Layia platyglossa J. Clausen 1935-5-24 1094 Sonoma 6.5 miles south of Jenner Comment
  CAS-BOT-BC379578  Layia platyglossa unspecified 1932-5-3 5717 Sonoma Stewarts Point Comment
  CAS-BOT-BC274361  Leersia oryzoides Peter Rubtzoff 1961-10-15 4759 Sonoma Vacation Beach, 2 mi. below Guerneville Comment
  CAS-BOT-BC210094  Lemna Peter Rubtzoff 1965-10-10 5653 Sonoma Stony Point Marsh. Comment
  RSA785220  Lemna Peter Rubtzoff 1970-5-30 6253 Sonoma 5 mi. north of Sears Point. Comment
  CAS-BOT-BC534357  Lemna aequinoctialis Peter Rubtzoff 1965-9-5 5646 Sonoma Russian River at Forest Hills (5.5 mi. east of Guerneville) Comment
  RSA783714  Lemna gibba Peter Rubtzoff 1965-11-9 5666 Sonoma Stony Point Marsh Comment
  UCR254728  Lemna minima Peter Rubtzoff 1955-7-31 2007 Sonoma Forestville Marsh [c. 0.5 mi E of Forestville, NW of Sebastopol] 50 Comment
  CAS-BOT-BC344900  Lemna minor Peter Rubtzoff 1955-7-10 1958 Sonoma Duncans Mills Marsh. Comment
  POM311075  Lemna minor Leo Koch 1940-6-12 1011 Sonoma In hills behind Fountaingrove Vineyard. 3 miles N of Santa Rosa along Hwy 101. Comment
  SEINET11768003  Lemna minor Unknown 1940-1 1011 Sonoma behind Fountaingrove Vineyard 3 mi N of Santa Rosa along Hwy 101 Comment
  CAS-BOT-BC534883  Lemna valdiviana Walter Knight; Irja Knight; J. T. Howell 1986-10-9 5847 Sonoma Llano Road near sewage disiposal plant near bridge on water of Laguna de Santa Rosa Comment
  CAS-BOT-BC89148  Lepidium didymum Mary P. Wells 1985-6-3 509 Sonoma Santa Rosa. Friends House, Rincon Valley. Comment
  CDA3805  Lepidium latifolium T. C. Fuller 1958-10-16 1480 -58 Sonoma North side Highway 48, 5 miles east of Sears Point. 0 Comment
  CAS-BOT-BC12757  Lepidium oxycarpum J. W. Congdon 1880-4-1 s.n. Sonoma Petaluma. Comment
  UC517474  Lepidium oxycarpum John Thomas Howell 1933-4-1 10924 Sonoma Petaluma Comment
  RSA262194  Leptochloa fusca subsp. fascicularis Peter Rubtzoff 1970-7-17 6284 Sonoma 5 miles north of Sears Point. Comment
  CAS-BOT-BC273994  Leptochloa fusca subsp. fascicularis John Thomas Howell; W. Knight; I. Knight 1988-7-6 s.n. Sonoma Old Redwood Highway & Adobe Road, Penngrove Comment
  CAS-BOT-BC226546  Leptosiphon acicularis John Thomas Howell 1933-4-2 10932 Sonoma Sonoma Creek Canyon Comment
  UCD15831  Leptosiphon bicolor J. D. DiTomaso 1998-5-18 s.n. Sonoma Sugarloaf Ridge State Park. 430 Comment
  CAS-BOT-BC376425  Leptosiphon latisectus Greg de Nevers 1995-4-5 10711 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Southeast of tower in saddle. 400 Comment
  UCR261617  Leptosiphon latisectus Ann Howald 2003-3-8 2274 Sonoma Inner North Coast Ranges, Mayacamas Mountains, Sugarloaf Ridge State Park, McCormick Addition, c. 0.1 mile east of intersection of Headwaters Trail and Grandmother Oaks Trail 450 Comment
  CAS-BOT-BC226735  Leptosiphon latisectus John Thomas Howell 1931-4-4 6179 Sonoma Santa Rosa Canyon Comment
  UCSB5162  Leptosiphon parviflorus Robbins, G. 1937-6-6 Sonoma 2 to 3 miles east of Bodega Bay Comment
  JEPS126509  Lessingia arachnoidea Staci Markos, Jack and Betty Guggolz and Gene Cooley 2001-9-24 210 Sonoma North of Camp Meeker near the Bohemian Highway, Bohemian Ranch, Amaryllis Flat. Comment
  POM183313  Lessingia arachnoidea John T. Howell 1931-9-26 8090 Sonoma 2 miles from Monte Rio on road to camp Meeker Comment
  CAS-BOT-BC324190  Lessingia hololeuca J. W. Compton 1880-9-1 s.n. Sonoma Petaluma Comment
  JEPS86744  Lessingia ramulosa Jack and Betty Guggolz 1990-9-17 1094 Sonoma small meadow on s side of creek 1/2 mi from Bohemian Highway (1 1/2 mi nnw of Camp Meeker); Duvoul Creek 97 Comment
  JEPS86745  Lessingia ramulosa Jack and Betty Guggolz 1990-9-17 1093 Sonoma on creek just below reservoir (about one mi n of Camp Meeker); Grub Creek 79 Comment
  CAS-BOT-BC342000  Lessingia ramulosa John Thomas Howell No date on label 2250 Sonoma SE. of Santa Rosa Comment
  UCD166467  Leymus triticoides Peter Rubtzoff 1956-9-22 2941 Sonoma Vacation Beach, near Guerneville. Comment
  JEPS86739  Lilaea scilloides Jack and Betty Guggolz 1990-4-4 1024 Sonoma w of Paradise Lane (s of Piner Road) 30 Comment
  CAS-BOT-BC451700  Lilaea scilloides Alice Eastwood 1921-4-24 10362 Sonoma Santa Rosa Comment
  CAS-BOT-BC451710  Lilaea scilloides Peter Rubtzoff 1958-4-26 3591 Sonoma Laguna de Santa Rosa east of Sebastopol. Comment
  UCD150014  Lilium pardalinum Teresa A. Sholars 1976-9-10 s.n. Sonoma Mayacmas Mtns. Ca. 2.5 mi southeast of the junction of Socrates Mine Rd. and Pine Flat Rd., along Big Sulphur Creek. Elevation estimated by label maker. 822 Comment
  CAS-BOT-BC132998  Lilium rubescens Greg de Nevers 1990-6-11 9672 Sonoma Pepperwood Natural Preserve, 3450 Franz Valley Road, Weimar Canyon 457 Comment
  HSC15782  Limnanthes douglasii L. S. Rose 1965-4-4 65020 Sonoma Sonoma 24 Comment
  SEINET6205134  Limnanthes douglasii L. S. Rose 1965-1 65020 Sonoma Sonoma Comment
  UC971869  Limnanthes douglasii subsp. douglasii Charles T. Mason Jr. 1948-5-9 1122 A Sonoma 0.8 mi s Kenwood Market (e side of Sonoma-Santa Rosa main hwy); Kinneybrook Farm Comment
  RSA52724  Limnanthes douglasii subsp. nivea I. L. Wiggins 1949-4-30 12064 Sonoma 4 miles W of Calistoga Comment
  SEINET5556953  Limnanthes douglasii var. nivea H. S. Gentry 1962-1 19701 Sonoma Oakville. Comment
  CAS-BOT-BC45949  Limnanthes vinculans Peter Rubtzoff 1958-5-3 3607 Sonoma Atascadero Creek Marsh Comment
  JEPS102970  Limnanthes vinculans Ann Howald 1994-4-19 1809 Sonoma Knights Valley, Bavarian Lion Ranch Comment
  CAS-BOT-BC376438  Linanthus Greg de Nevers 1998-5-26 11257 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Near Murry Gate 400 Comment
  UC496363  Linanthus androsaceus Merle Randall 1930-6-2 Sonoma near Cazadero (Christopher Ranch) Comment
  UC52738  Linanthus androsaceus C. B. Turrill Sonoma Comment
  UC1763995  Linanthus jepsonii Douglas W. Schemske 1993-4-30 1 D Sonoma Pepperwood Ranch Natural Preserve Comment
  UC336386  Linanthus jepsonii unknown 491 Sonoma Knights Valley Comment
  UC908795  Linanthus jepsonii Herbert L. Mason 1928-4-13 4339 Sonoma Reibli School, near springs Comment
  UC353897  Linanthus jepsonii Milo S. Baker 1928-5-7 2144 b Sonoma opposite Maple Glen Comment
  UC1763994  Linanthus latisectus Douglas W. Schemske 1993-4-30 1 C Sonoma Pepperwood Ranch Natural Preserve Comment
  UC1124048  Linanthus parviflorus H. S. Yates 1934-4-22 3847 Sonoma 2 mi s Mark West; Calistoga Quad. 152 Comment
  UC133827  Linanthus parviflorus Katharine Brandegee Jun 1905 Sonoma between Santa Rosa and Sebastopol Comment
  UC76069  Linaria vulgaris Miss Emma Lobenstein 1906-1 Sonoma Valley Ford Comment
  JEPS70989  Linum grandiflorum Peter Rubtzoff 1972-4-23 6727 Sonoma 0.9 mi s Meacham Road junction with Stony Point Road (near Public Refuse Disposal Area road 0.25 mi w of Meacham Road junction) Comment
  CHSC114678  Linum trigynum Peter Warner 2010-5-16 167 Sonoma Jenner Headlands, Knoll Field, 203m, s244 deg. W of residence house, on S-facing slope of knoll in coastal grassland. UTM 10S: 489308E, 4256990N 230 Comment
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May 27 2016
  CAS-BOT-BC430799  Lithophragma affine Alice Eastwood 1921-5-8 10465 Sonoma Petaluma Comment
  CAS-BOT-BC430586  Lithophragma affine G. DeNevers 1981-4-11 700 Sonoma Pepperwood Ranch, along road below Lower Orchard Comment
  CAS-BOT-BC430798  Lithophragma affine Alice Eastwood 1918-5-1 6870 Sonoma Mt. St. Helena Comment
  UC858177  Lithophragma heterophyllum Alice Eastwood 1918-5-1 6814 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC342133  Logfia filaginoides Greg de Nevers; Frank Almeda 1987-4-11 8140 Sonoma Pepperwood Rach Natural Preserve, 3500 Franz Valley Road, Santa Rosa 400 Comment
  UCD167964  Logfia filaginoides James Neilson 1977-6-12 3919 Sonoma Mayacmas Mountains, McMicking Ranch, well site 2. (McMicking Ranch is also known as Santa Angelina Ranch and is in the vicinity of Knights Valley and Coon Creek.) Comment
  UC1093862  Logfia gallica Herbert L. Mason 1947-5-4 13210 Sonoma near Kenwood; Hood Mountain Comment
  CAS-BOT-BC353413  Logfia gallica Peter Rubtzoff 1973-7-24 7197 Sonoma Upper Green Valley Marsh. Comment
  UCD167965  Logfia gallica James Neilson 1977-6-12 3920 Sonoma Mayacmas Mountains, McMicking Ranch, well site 2. (McMicking Ranch is also known as Santa Angelina Ranch and is in the vicinity of Knights Valley and Coon Creek.) Comment
  CAS-BOT-BC283281  Lolium multiflorum Walter & Irja Knight; J. T. Howell 1987-5-27 6279 Sonoma Todd Road Preserve 24 Comment
  UC573666  Lolium multiflorum H. S. Yates 1936-5-16 5581 Sonoma 1 mi ne Graton; Sebastopol Quadrangle Comment
  UCD66008  Lolium multiflorum Beecher Crampton 1957-7-11 4305 Sonoma Along State Hwy. 1, 1.4 miles SE of Bodega Bay. Comment
  UCD66189  Lolium multiflorum Mary M. Hektner; Sue Dakuzaku 1974-6-3 18 B Sonoma Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC283292  Lolium multiflorum David L. Morgan 1960-7-10 s.n. Sonoma 1 mile S of Carmet, State Highway 1, Bodega Coast Comment
  RSA121238  Lolium perenne subsp. multiflorum H. S. Yates 1937-5-30 6552 Sonoma 1.5 miles E. of Occidental. 91 Comment
  CAS-BOT-BC269192  Lolium temulentum David L. Morgan 1956-5-13 s.n. Sonoma On Watmaugh Rd., 1/2 mi. W. of junction of Arnold Drive Comment
  UCD127038  Lomatium californicum Ellen Dean; Tammie Beyerl 2006-4-28 3029 Sonoma Town of Kenwood. East of Hwy. 12. Kunde Vineyards. Hills to the east, near center of property. 254 Comment
  SEINET12121666  Lomatium californicum W. Knight, Knight, I.; Edwards, S. 1986-1 5294 Sonoma on Geysers Road between Geysers Resort site & CLoverdale Comment
  SEINET8465350 Image available Lomatium californicum F. Almeda, G. DeNevers 1981-4-28 4907 Sonoma Approximately 5 mi from main gate to Pepperwood Ranch Natural Preserve just off Franz Valley Rd. Comment
  UCD127044  Lomatium dasycarpum subsp. dasycarpum Frederica Bowcutt 1994-5-21 1806 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, about 10 air miles E of Santa Rosa, about 1.5 air miles N of Kenwood, about 18 air miles NW of Napa. Along meadow trail, approx. 3/8 mile from trailhead. 1300 Comment
  CAS-BOT-BC361371  Lomatium repostum Greg de Nevers 1997-3-20 10920 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa Oak Hill 400 Comment
  CAS-BOT-BC217810  Lomatium repostum Alice Eastwood 1923-5-9 11740 Sonoma Hills above Calistoga Comment
  UC1123059  Lomatium utriculatum H. S. Yates 1934-4-21 3794 Sonoma near Bodgea; Sebastopol Quad. Comment
  UCD127724  Lomatium utriculatum Jennifer Bury; Peggy Herzog 1993-5-8 261 Sonoma About 40 air miles N of San Francisco; about 11 air miles E of Santa Rosa and 2.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge and S of Red Mtn 1 mile. Near visitor center. 381 Comment
  CAS-BOT-BC258030  Lonicera Peter Rubtzoff 1962-4-11 4787 Sonoma Laguna de Santa Rosa east of Cunningham (near Llano Road). Comment
  CAS-BOT-BC240645  Lonicera hispidula Walter Knight; Irja Knight 1963-9-15 294 Sonoma Los Alamos Rd., Santa Rosa Comment
  UCD137329  Lonicera hispidula Frederica Bowcutt; Jeff Kennedy, Jolie Hendricks 1994-5-1 1748 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco; 10 air miles E of Santa Rosa; 18 air miles NW of Napa; 1.5 air miles NE of Kenwood. In Adobe Canyon along Goodspeed Trail approximately 1/8 mile from trail head on Adobe Canyon Road. 213 Comment
  SEINET5784640 Image available Lonicera involucrata Marcus E. Jones 1882-1 2739 Sonoma Duncan's Mills Comment
  UCSB8735  Lonicera involucrata Keator, Glenn 1959-4-2 Sonoma 0.6 miles north of junction of Laguna Road and College Road on Laguna Road and 5.1 miles north of Sebastopol, Vinehill area Comment
  CAS-BOT-BC244008  Lonicera involucrata var. ledebourii Peter Rubtzoff 1952-3-23 898 Sonoma North of the Lower Marsh, Pitkin Marsh near Forestville Comment
  JEPS79074  Lotus aboriginus L. R. Heckard with S. Rae and Betty Lovell 1980-4-21 5175 Sonoma 1.5 mi due e Forestville (about 0.5 mi e of Vine Hill road, Vine Hill School road) 60 Comment
  POM232043  Lotus angustissimus Roxana S. Ferris 1937-8-19 9379 Sonoma 1.5 mi. north of Fort Ross on State Highway 1. Comment
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Dec 13 2015
  UCSB31801  Lotus corniculatus Townsend, J. 1977-5-21 Sonoma North side of Calif. State 12, 1 mile east of Freestone 304 Comment
  SEINET4982902  Lotus formosissimus Unknown 1994-4-3 77 Sonoma approx. 6.5mi SE of Gualala in the Sea Ranch community on the Pacific Coast; Hwy 1 Comment
  UC80808  Lotus heermannii Alice Eastwood 1899-6-9 Sonoma Bodega Point Comment
  UC69629  Lotus humistratus J. Burtt Davy 1896-3-13 1655 Sonoma Duncan's Mills Comment
  RSA177971  Lotus micranthus Robert F. Thorne 1965-4-20 34349 Sonoma On Cavedale Road, 0.5 miles up from State Hwy 12, ca. 4 miles N of Sonoma. 244 Comment
  UCR275251  Lotus purshianus Peter Rubtzoff 1973-8-29 7288 Sonoma Sonoma Creek, near Agua Caliente Road crossing, west of Agua Caliente 38 Comment
  SEINET12165328  Lotus scoparius W. Knight, Kinght, I.; DrEdwards, S. 1986-1 5323 Sonoma Geyser Peak Summit, access from Healdsburg-Geysers Rd 858 Comment
  UC15539  Lotus stipularis var. stipularis F. T. Bioletti 1893-6-7 Sonoma Hoods Peak Comment
  RSA31789  Lotus wrangelianus A. A. Heller 1938-5-14 15079 Sonoma Bluff north of Bodega Bay. Comment
  RSA0034027  Ludwigia Peter Rubtzoff 1987-9-27 9853 Sonoma Russian River at Forest Hills, ca. 6 miles E of Guerneville. Comment
  JEPS86738  Ludwigia hexapetala Jack and Betty Guggolz 1990-9-25 1097 Sonoma Russian R. at road crossing below (e. of) Asti; Russian R. 73 Comment
  CAS-BOT-BC251189  Ludwigia palustris Peter Rubtzoff 1956-9-15 2910 Sonoma Atascadero Creek Marsh. Comment
  CAS-BOT-BC258922  Ludwigia palustris Peter Rubtzoff 1966-6-26 5763 Sonoma Laguna de Santa Rosa, east of Graton, between Occidental and Guerneville roads. Comment
  CAS-BOT-BC249320  Ludwigia palustris var. pacifica Peter Rubtzoff 1954-7-4 1527 Sonoma Austin Creek Marsh. Comment
  CAS-BOT-BC157973  Ludwigia peploides Peter Rubtzoff 1958-7-20 3782 Sonoma Laguna de Santa Rosa, northeast of Graton (near Guerneville Road) Comment
  CAS-BOT-BC164036  Ludwigia peploides Peter Rubtzoff 1958-8-9 3851 Sonoma Laguna de Santa Rosa, north of Sebastopol (near Occidental Road) Comment
  CAS-BOT-BC164062  Ludwigia peploides Peter Rubtzoff 1958-8-16 3881 Sonoma Laguna de Santa Rosa, north of Sebastopol (near Occidental Road) Comment
  SBBG60088  Ludwigia peploides L. Rowntree 1931-8-26 Sonoma near Sonoma Comment
  CAS-BOT-BC201296  Lupinus Charles Piper Smith 1947-6-25 47569 Sonoma Highway 1, Jenner, 1.6 miles north Comment
  SEINET10488351  Lupinus affinis Joseph W. Congdon 1880-5-22 Congdon s.n. Sonoma Santa rosa road Comment
  UCD105742  Lupinus affinis John Thomas Howell 1976-4-26 51596 Sonoma hills east of Geyserville on road to Geysers. Comment
  UC1129274  Lupinus albifrons E. Armstrong 1934-3-26 929 Sonoma 2 mi nw Camp Meeker; Sebastopol quad 91 Comment
  UC127022  Lupinus albifrons F. T. Bioletti 1894-1 Sonoma near Hood's Peak; near Hood's Peak Comment
  SEINET10488438  Lupinus albifrons Joseph W. Congdon 1880-5-16 Congdon s.n. Sonoma Comment
  UC725889  Lupinus albifrons var. albifrons A. A. Heller 1940-5-17 15632 Sonoma about 2 mi e Bodega Bay; e of Bodega Bay Comment
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Jan 27 2007
  CAS-BOT-BC196460  Lupinus arboreus Ella Dales Cantelow 1938-5-7 2395 Sonoma 2 1/2 mi. N. of Bodega Bay Comment
  POM299302  Lupinus arboreus var. eximius H. C. Cantelow 1941-6-7 s.n. Sonoma 4 miles north of Bay, State Highway 1. Comment
  UCR248903  Lupinus bicolor Peter Rubtzoff 1969-5-11 6043 Sonoma Laguna de Santa Rosa, NE of Graton, at end of Piner Road 30 Comment
  UCR275269  Lupinus bicolor Peter Rubtzoff 1974-4-17 7377 Sonoma Upper Green Valley Marsh Comment
  CDA36845  Lupinus formosus 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
  UC1542825  Lupinus formosus M. L. Conrad, Dunn, and LeDoux 1973-6-9 7084 Sonoma on Hwy 121, 0.6 mi w Sonoma-Napa County line 60 Comment
  SD125495  Lupinus formosus var. formosus D. B. Dunn, Conrad and Ledoux 1973-6-9 20712 Sonoma 5.3 miles east of the Junction of Highway 101 and Highway 116 on 116. Comment
  UC726340  Lupinus microcarpus var. microcarpus A. A. Heller 1938-5-14 15091 Sonoma near Two Rocks; near Two Rocks Comment
  UC82239  Lupinus microcarpus var. microcarpus Alice Eastwood Sonoma Bodega Point; ; Bodega Point, Sonoma Co. Comment
  JEPS65363  Lupinus nanus W. L. Jepson 1914-4-11 5801 Sonoma Sonoma Valley 35 Comment
  UC65702  Lupinus nanus A. A. Heller 1902-3-21 5115 Sonoma Santa Rosa Comment
  UCD151182  Lupinus nanus James A. Neilson Jr. 1974-4-16 3064 Sonoma Mayacmas Mountains. Sulphur bank number 13. (Elevation estimated using Google Earth by label maker.) 487 Comment
  SEINET13184149 Image available Lupinus nanus A. G. Vestal 1955-5-7 s.n. Sonoma Comment
  RSA10735  Lupinus nanus subsp. latifolius A. A. Heller, H. E. Brown, A. H. Heller 1902-4-9 7188 Sonoma Three Miles South of Healdsburg. Comment
  SEINET10970295  Lupinus nanus subsp. nanus Mcberty 1961-5-13 MCBERTY 35 Sonoma In moist, open pasture at end of hutchins avenue, 1 mi e of sebastopol. Comment
  SEINET7040132 Image available Lupinus polycarpus A. G. Vestal 1962-4-11 Sonoma 1 mile east of Occidental. UTM Zone 10, 505896mE, 4250807mN. Comment
  SEINET12164400  Lupinus propinquus F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -147 Sonoma between Salmon Creek & Cormet at junction of Coleman Valley Road & CA 1 12 Comment
  CAS-BOT-BC207258  Lupinus sericatus John Thomas Howell 1935-5-5 12610 Sonoma Near summit of Trinity P.O. Road, Mt. Hood Range Comment
  SEINET10973357 Image available Lupinus sonomensis A. Arthur Heller 1940-5-17 Heller 15638 Sonoma Stiff clay on a grassy slope, 2 mi E of Shellville along the roadside. Upper Sonoran Life Zone, but no trees present here. Comment
  HSC34850  Lupinus succulentus Thomas W. Nelson 1975-5-8 1811 Sonoma Beside Hwy. 101 just S of Ash Creek near the Mendocino-Sonoma Co. line Comment
  SEINET13184148 Image available Lupinus succulentus A. G. Vestal 1955-5-7 s.n. Sonoma Comment
  JEPS85895  Lupinus tidestromii Jack and Betty Guggolz 1991-5-27 1153 Sonoma coastal dunes between the mouth of the Russian River and Goat Rock; btw the mouth of the Russian River and Goat Rock 6 Comment
  SEINET6932747 Image available Lupinus vallicola subsp. apricus W. P. Vestal, A. G. Vestal 1947-5-13 s.n. Sonoma Cove at Bodega Head. Comment
  POM231113  Lupinus variicolor Jens Clausen 1935-5-24 1089 Sonoma 5.1 mi. S of Jenner on the Bodega road. Comment
  RSA0036442  Lupinus variicolor Daisie Huang 2006-5-30 06053015 Sonoma Bodega Marine Laboratory. Coastal bluff near building. (waypt 30D). 2 Comment
  UCD166732  Luzula Peter Rubtzoff 1958-5-17 3680 Sonoma Laguna de Santa Rosa, east of Cunningham (near Llano Road). Comment
  CDA12825  Luzula comosa G. F. Hrusa, R. Gross 1996-3-8 12658 Sonoma North Coast Biodiversity Arena; Foote Ranch at corner of Ida Clayton Rd. and Hwy. 128. Comment
  CAS-BOT-BC441296  Luzula macrantha G. De Nevers 1981-3-25 566 Sonoma Pepperwood Ranch. Between the two fir-Redwood canyons Comment
  JEPS128351  Luzula parviflora Roger Raiche 2000-4-15 037 .00 Sonoma The Cedars. Azalea Creek, The Blob area, Beargrass Gulch. Lower Russian River, Big Austin Creek watershed. Comment
  RSA94298  Lythrum hyssopifolia Peter Rubtzoff 1951-8-18 621 Sonoma Uppermost part of the western branch of the upper. Comment
  RSA0016031  Lythrum tribracteatum Peter Rubtzoff 1970-5-30 6244 Sonoma 5 mi. N of Sears Point. Comment
  CAS-BOT-BC166955  Madia Peter Rubtzoff 1969-8-29 6173 Sonoma Salmon Creek, ca. 0.5 miles upstream from Hwy. 1. Comment
  UCD167413  Madia James Neilson 1978-5-3 3961 Sonoma Mayacmas Mountains, north side of Red Hill. (Neilson 3959 collected on the same date indicates that this specimen was located near Red Hill, although his field notebook says Red Mtn. in error. Exact location unknown. Coordinates estimated by label maker.) Comment
  CAS-BOT-BC342616  Madia anomala John Thomas Howell 1959-5-7 34594 Sonoma Hills east of Agua Caliente Comment
  CAS-BOT-BC342622  Madia anomala G. DeNevers 1981-5-7 996 Sonoma Pepperwood Ranch. Along the Studio Road Comment
  UC523537  Madia elegans David D. Keck 1933-11-6 2650 Sonoma 4 mi n of Occidental Comment
  CAS-BOT-BC344032  Madia elegans Peter Rubtzoff 1951-8-26 675 Sonoma Hills south of Guerneville (Neeley Hill area) Comment
  SD51335  Madia elegans subsp. densifolia Darley F. Howe 1961-7-29 3086 Sonoma 2 miles east of a point on #101, 4 miles north of Santa Rosa on road to Calistoga 120 Comment
  CAS-BOT-BC166728  Madia gracilis Peter Rubtzoff 1964-6-24 5366 Sonoma Lower Salmon Creek Marsh. Comment
  CAS-BOT-BC343461  Madia gracilis L. R. Abrams 1916-7-4 5791 Sonoma Road between Petrified Forest and Mark West Comment
  UCD151199  Madia gracilis James A. Neilson Jr. 1974-7-10 3577 Sonoma Mayacmas Mountains, 1/4 mile south of Geyser Rock, west of Whispering Pines, northeast Sonoma County. (Elevation estimated using Google Earth by label maker.) 1082 Comment
  CAS-BOT-BC343464  Madia gracilis G. DeNevers 1981-5-5 926 Sonoma Pepperwood Ranch. W arm of Garrison Canyon Comment
  HSC100964  Madia gracilis Peter Warner 2011-5-28 203 Sonoma Cresta Ranch (Sonoma Co. Ag. Preservation and Open Space Dist. Property; off Mark West Springs Rd. at Mark West Lodge), upslope S from Cresta Rd., near western property boundary. 0 Comment
  RSA177896  Madia gracilis subsp. gracilis R. F. Thorne 1965-4-20 34351 Sonoma On Cavedale Road, 0.5 miles up from State Hwy 12, ca. 4 miles N of Sonoma. 244 Comment
  CAS-BOT-BC345209  Madia sativa A. A. Heller 1902-6-10 5683 Sonoma Santa Rosa Comment
  CAS-BOT-BC345219  Madia sativa David D. Keck 1933-5-28 2321 Sonoma 3.4 miles east of Shellville (just east of intersection of Sonoma road) Comment
  CAS-BOT-BC345228  Madia sativa H. M. Hall 1916-7-24 10250 Sonoma Near Petaluma Comment
  UC75904  Madia sativa Miss M. Alice King June 1897 Sonoma near Healdsburg Comment
  CAS-BOT-BC345258  Madia sativa John Thomas Howell 1932-9-18 10765 Sonoma South base of Mt. Hood on Sonoma Creek Comment
  RSA94304  Madia sativa Peter Rubtzoff 1951-8-4 580 Sonoma Pitkin Marsh, near Forestville: south of the Upper Marsh Comment
  UCD134337  Madia sativa Mary M. Hektner; Cathy Hendel 1974-7-29 182 Sonoma Shell Beach; Unit 28 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC511498  Maianthemum stellatum John Thomas Howell 1924-3-23 298 Sonoma Camp Meeker Comment
  RSA34706  Malva sylvestris I. L. Wiggins, R. S. Ferris 1943-5-2 10207 Sonoma Vacant lot along highway, U.S. 101, in Healdsburg. Comment
  SEINET11993721  Malvella leprosa W. Knight, Knight, I. 1984-1 5425 Sonoma Willow Creek Rd 61 Comment
  RSA784484  Marsilea vestita subsp. vestita Peter Rubtzoff 1964-7-7 5388 Sonoma Laguna de Santa Rosa, east of Graton, between Occidental and Guerneville Roads. Comment
  CAS-BOT-BC348220  Matricaria discoidea D. E. Breedlove 1980-6-28 44807 Sonoma Pepperwood Ranch W of Knights Valley Comment
  UCD134467  Matricaria discoidea Mary M. Hektner 1976-4-3 234 Sonoma Shell Beach, Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  UCD107850  Medicago polymorpha Caitlin Lewis; William Mutch 1993-4-17 24 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
  CAS-BOT-BC269511  Melica californica G. DeNevers 1981-5-23 1264 Sonoma Pepperwood Ranch. At bottom of Franz Valley Road Comment
  JEPS128376  Melica californica Roger Raiche 2000-5-28 119 .00 Sonoma The Cedars. (Shown on SLT maps as Marshall Creek but this is not the name on USGS sheets). Gualala River Wheatfield Fork watershed. Comment
  UC53670  Melica californica F. T. Bioletti 1893-6-5 Sonoma s Los Guilucos Valley Los Guilucos Valley 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
  SJSU9871  Melica geyeri G. J. Woodside 1969-4-29 36 Sonoma Dutton Bill Creek 4 mi above Camp Meeker at St. Dorothy's Rest Comment
  UC1132266  Melica geyeri H. S. Yates 1934-4-22 3839 Sonoma 3 mi e Mark West; Calistoga Quad. 213 Comment
  UCD87313  Melica geyeri Virginia Bufford 1937-5-10 453 Sonoma Top of O'farrell Hill -- West of Sebastopol. Comment
  CAS-BOT-BC262558  Melica torreyana Peter Rubtzoff 1952-6-3 1161 Sonoma South slopes of Fitch Mtn., near Healdsburg Comment
  UCD89212  Melica torreyana M. Wiesendanger 1927-5-5 734 Sonoma Kenwood Springs. Comment
  UCD166100  Melilotus indicus Peter Rubtzoff 1971-8-20 6640 Sonoma 5 miles north of Sears Point. Comment
  CAS-BOT-BC164351  Melissa Peter Rubtzoff 1973-9-9 7317 Sonoma Kenwood Marsh. Comment
  UC456136  Mentha canadensis I. J. Condit 1908-8-13 Sonoma Guerneville Comment
  UCD125048  Mentha canadensis P. B. Kennedy 1927-8-20 s.n. Sonoma Knight's Valley. Comment
  JEPS63448  Mentha pulegium W. L. Jepson 1903-10-4 2363 Sonoma near Monte Rio (Bohemian Club Grove, moist bed of winter pond); Bohemian Club Grove Comment
  JEPS63450  Mentha pulegium W. L. Jepson 1931-7-19 15938 Sonoma Watson School Bodega (Bodega) 152 Comment
  CAS-BOT-BC164704  Mentha spicata Peter Rubtzoff 1954-9-6 1740 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC166681  Mentha spicata Peter Rubtzoff 1968-7-20 5924 Sonoma Upper Salmon Creek Marsh. Comment
  CAS-BOT-BC166975  Mentha spicata Peter Rubtzoff 1968-8-24 5936 Sonoma Forest Hills, 5.5 miles east of Guerneville. Comment
  UC26555  Mertensia F. T. Bioletti 1893-4-24 Sonoma Los Guilucos Valley Comment
  UCD134481  Micropus amphibolus John Thomas Howell 1965-3-25 41033 Sonoma 3 miles southeast of Sonoma. 76 Comment
  CAS-BOT-BC348627  Micropus californicus var. californicus G. DeNevers 1981-5-5 944 B Sonoma Pepperwood Ranch. Hansel's cow pasture. On the trail across the driveway to the Pippindale Garden Comment
  CAS-BOT-BC322705  Microseris laciniata Volney Rattan May and June s.n. Sonoma North of Cloverdale Comment
  RSA784490  Microseris laciniata subsp. laciniata Peter Rubtzoff, Nancy Harrison, Doug Jones 1974-6-8 7576 Sonoma Todd Road, 1.4 mi from Hwy 116 and 0.6 mi from Llano Road. Comment
  CAS-BOT-BC312701  Mimulus Peter Rubtzoff 1964-8-26 5476 Sonoma Marsh 5 miles northeast of Penngrove on Lichan Road. 213 Comment
  CAS-BOT-BC320503  Mimulus Peter Rubtzoff 1955-7-9 1929 Sonoma Forestville Marsh. Comment
  SEINET12327817  Mimulus aurantiacus F. H. Utech, Knight, W.; Knight, I. 1984-1 84 -076 Sonoma ca 4 mi NNW of Sonoma on Cavedale Road from junction with CA 12 107 Comment
  POM43747  Mimulus aurantiacus var. aurantiacus Marcus E. Jones 1924-4-25 s.n. Sonoma Cloverdale Comment
  UC1063404  Mimulus aurantiacus var. aurantiacus J. B. Spring May 1932 69 Sonoma Head Hooker Canyon Napa Quadrangle 457 Comment
  UC445122  Mimulus aurantiacus var. aurantiacus Miss C. M. Hoak Aug. 1912 Sonoma Monte Rio Comment
  UC943906  Mimulus aurantiacus var. aurantiacus H. E. McMinn 1944-11-5 5454 Sonoma along road from Kenwood to Oakville Comment
  UCD39137  Mimulus cardinalis Beecher Crampton 1964-8-18 7144 Sonoma N.E. 'The Geysers', Big Sulphur Creek. Comment
  UC1012302  Mimulus guttatus F. W. Pennell and H. L. Mason 1940-5-21 25483 Sonoma Kellogg Route 28 182 Comment
  UCR248740  Mimulus guttatus Peter Rubtzoff 1970-6-21 6271 Sonoma North Coast Ranges, tributary of Mark West Creek, c. 3 mi west of Fulton 49 Comment
  UCR275268  Mimulus guttatus Peter Rubtzoff 1955-7-9 1929 Sonoma North Coast Range, Forestville Marsh 71 Comment
  OBI47583  Mimulus guttatus L. F. LaPre 1986-6-3 s.n. Sonoma Dorr Place, 4 mi up a privated rd from Mannings flats in Austin Crk State Recreation Area, 6 mi N of Cazadero on upper Austin Crk. Cazadero Quad 207 Comment
  RSA0022509  Mimulus guttatus Peter Rubtzoff 1960-6-9 4486 Sonoma Laguna de Santa Rosa area NE of Graton, near the Laguna Road. Comment
  SEINET12334049  Mimulus guttatus Unknown 1977-1 17 Sonoma no further locality 122 Comment
  UC1348905  Mimulus microphyllus Robert F. Thorne 1965-4-19 34286 Sonoma 2 mi ne Occidental (near county dump on Stoetz Road, off of Harrison Grade) 182 Comment
  UC768827  Mimulus microphyllus R. F. Hoover 1939-4-18 4036 Sonoma Occidental Comment
  UCD122794  Mimulus moschatus Frederica Bowcutt 1997-7-18 2173 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. 662 Comment
  UC124362  Mimulus pilosus T. S. Brandegee July 1887 Sonoma Healdsburg Comment
  UCD39138  Mimulus pilosus Beecher Crampton 1964-8-18 7145 Sonoma N.E. Sonoma County: 'The Geysers', Big Sulphur Creek. Comment
  UC1063065  Mimulus tricolor E. Armstrong 1934-4-15 1210 Sonoma near Occidental; Sebastapol Quadrangle Comment
  UCSC000249  Minuartia californica I. J. Condit 2013-3-7 s.n. Sonoma Petaluma Comment
  CAS-BOT-BC388893  Minuartia douglasii F. Almeda; G. DeNevers 1981-4-28 4910 Sonoma Pepperwood Ranch. Vicinity of the Bechtel cabin Comment
  CAS-BOT-BC435110  Mollugo verticillata Peter Rubtzoff 1958-9-21 4002 Sonoma Vacation Beach, near Guerneville. Bottom of Russian River. Comment
  UC72588  Mollugo verticillata Miss M. Alice King Sept. 1896 Sonoma near Healdsburg (Russian River); Russian River Comment
  UC7699  Mollugo verticillata Miss Alice King 1897-1 Sonoma Healdsburg Comment
  UCD167560  Monardella James A. Neilson Jr. 1976-6-18 s.n. Sonoma Mayacmas Mountains. On Squaw Creek. 1/4 mile from Black Hawk Ranch. (Exact location unkown. Coordinates estimated by label maker. Black Hawk Ranch location not found. Location georeferenced at the end of Ottobani Ridge between Big Sulphur Creek and Squaw Creek because neilson collected in that area on 18 June 1976.) Comment
  SEINET12326118  Monardella neglecta W. Knight, Knight, I.; Raiche, R.; Edwards, S. 1983-1 4756 Sonoma The Cedars, near Cazadero on Twitchell Ranch 229 Comment
  CAS-BOT-BC220388  Monardella purpurea R. F. Hoover 1965-6-29 9474 Sonoma North of summit on Harrison Grade road near Occidental Comment
  JEPS87251  Monardella purpurea Jack and Betty Guggolz 1992-3-12 1242 Sonoma w side Rincon Ridge; Santa Rosa 213 Comment
  LA57191  Monardella purpurea Robert F. Hoover; 1942-7-13 5915 Sonoma 3 mi. S of Monte Rio Comment
  LA37424  Monardella villosa Carl Epling; Ledyard Stebbins, Harlan Lewis 1943-6-17 sn Sonoma Bodega Bay Comment
  LA62455  Monardella villosa Merle Randall; 1930-6-13 sn Sonoma Alamere Creek Comment
  UC1561918  Monardella villosa subsp. franciscana Barbara Ertter 1989-6-19 8592 Sonoma Dry knoll S of junction Highway 1 and road to Goat Rock Beach S Russian River Comment
  CAS-BOT-BC220701  Monardella viridis Roger Raiche; Steve Edwards; Walter Knight; Irja Knight 1983-7-3 4756 Sonoma The Cedars, near Cazadero on Twitchell Ranch 228 Comment
  CAS-BOT-BC445007  Montia fontana Peter Rubtzoff 1962-4-11 4791 Sonoma Laguna de Santa Rosa east of Cunningham (near Llano Road). Comment
  CAS-BOT-BC444983  Montia fontana R. Bacigalupi 1948-3-6 2856 A Sonoma At junction of roads from Stewart's Point and Annapolis, on road from Skaggs Springs, NW Sonoma County Comment
  RSA620419  Montia fontana Peter Rubtzoff 1955-4-23 1775 Sonoma Sonoma County: Bennett Mtn Lake Comment
  UCD144661  Montia fontana Frederica Bowcutt; Kate Mawdsley 1996-3-24 2067 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. About 1 air miles S of Red Mtn, just S of Sonoma Creek. 365 Comment
  RSA0102995  Montia gypsophiloides Lyman Benson 1935-3-31 6407 Sonoma U.S. 101, Healdsburg. Mt. Range: North Coast. Watershed: Russian River. 243 Comment
  UC1051631  Myosotis discolor Peter Kamb and Francia Chisaki 1950-6-16 1867 Sonoma n.w. Sebastopol (1 mi. n. of Sousa Corners); Pitkin Marsh Comment
  UCR222562  Myosotis latifolia George K. Helmkamp, E. A. Helmkamp 2010-6-5 16253 Sonoma North Coast Ranges, Vellutini Road, 1.3 miles northwest of its junction with Martinelli Road, 3.5 air mi. ESE (98 deg. ) of Guerneville 44 Comment
  CAS-BOT-BC257697  Myosurus Peter Rubtzoff 1970-5-30 6245 Sonoma 5 miles north of Sears Point. Comment
  UC672611  Myrica californica Herbert L. Mason 1928-7-11 4893 Sonoma canyon 2 mi. n. Fort Ross Comment
  CAS-BOT-BC251160  Myriophyllum hippuroides Peter Rubtzoff 1962-8-3 5021 Sonoma Atascadero Creek Marsh. Comment
  CAS-BOT-BC258916  Myriophyllum verticillatum Peter Rubtzoff 1955-8-13 2039 Sonoma Duncans Mills Marsh, lower portion of the marsh. Comment
  RSA0028934  Myriophyllum verticillatum Barbara Ertter 1988-11-5 8034 Sonoma Lake Sonoma 5 air miles due S of Cloverdale, point below Little Flat parking area W of bridge. 152 Comment
  RSA543177  Najas guadalupensis Peter G. Connors 1992-6-18 289 Sonoma Button Ranch (prospective Univ. Calif. Natural Reserve, pond #15 of Connor s numbering system). Between Walker Road and Roblar Road, 5 km north of Two Rock. 20 km from coast between Bodega Bay and Petaluma 122 Comment
  CAS-BOT-BC260070  Nassella lepida Peter Rubtzoff 1952-6-3 1149 Sonoma S slopes of Fitch Mountain, near Healdsburg Comment
  UC727739  Nassella pulchra Milo S. Baker 1946-4-14 11311 Sonoma ridge near Howar Rodger's Ranch (ne of Santa Rosa); Rincon Ridge Comment
  UCD87462  Nassella pulchra Beecher Crampton 1956-4-24 3310 Sonoma 2.5 miles north of Healdsburg. Comment
  SEINET7042683  Nassella pulchra A. G. Vestal 1947-5-16 s.n. Sonoma Ca.4.5 miles east of Winsor. Healdsburg quadrangle UTM Zone 10, 519826mE, 4271406mN. Comment
  CAS-BOT-BC60515  Nasturtium officinale Peter Rubtzoff 1951-6-9 158 Sonoma Pitkin Marsh near Forestville. Northern half of Lower Marsh. Comment
  CAS-BOT-BC60517  Nasturtium officinale Peter Rubtzoff 1951-6-9 173 Sonoma Pitkin Marsh near Forestville. Lower part of the Upper Marsh. Comment
  UC106834  Navarretia heterodoxa Michener and Bioletti Jul 1891 1554 a Sonoma Hoods Peak Comment
  UCR197893  Navarretia heterodoxa Calvin McMillan 1949-1 597 Sonoma Trinity Road, 6 miles northeast of Glen Ellen 368 Comment
  UCR265547  Navarretia intertexta Ann Howald, Christina Freeman 2015-6-1 3413 Sonoma Inner North Coast Ranges, Annadel State Park, Ledson Marsh, northwest corner, south of Marsh Trail 362 Comment
  UCD161456  Navarretia mellita James A. Neilson Jr.; Teresa A. Sholars 1975-6-27 3294 c Sonoma Mayacmas Mountains, Caldwell Pines, ca. 3 1/2 miles west of Glenbrook and Bottle Rock Road, northeast Sonoma County. (Elevation and coordinates estimated by label maker.) 1005 Comment
  SEINET191588  Navarretia pubescens Lewis S. Rose 1940-5-22 40371 Sonoma Sonoma 30 Comment
  UC908513  Navarretia pubescens Herbert L. Mason 1940-5-21 12294 Sonoma head of Mayacama Creek Knights Valley, Mayacama Creek Comment
  CAS-BOT-BC232685  Navarretia pubescens Milo S. Baker 1927-5-17 2157 a Sonoma Bennett Valley Road, 0.5 mile W of Sonoma Creek Bridge Comment
  HSC100965  Navarretia pubescens Peter Warner, Sarah Gordon 2011-5-27 204 Sonoma McCullough Ranch, end of Cresta Rd. (off Mark West Spring Rd. at Mark West Lodge), ~675 m, N75 deg. E from main residence, E from Mark West Creek Rd., S of 2nd bridge below power lines. 58 Comment
  SEINET196703  Navarretia pubescens Herbert L. Mason 1940-5-21 12294 Sonoma Head of Mayacama Creek in Knights Valley. Comment
  UC1299600  Navarretia squarrosa Freed W. Hoffman 1946-8-20 866 Sonoma western slope of Napa Range, Trinity Road, at quarry North Coast Ranges, Napa Range Comment
  UC133770  Navarretia squarrosa Katharine Brandegee Aug 1892 Sonoma Petrified Forest Comment
  UC188522  Navarretia squarrosa J. W. Congdon 1889-7-25 Sonoma Petaluma Comment
  UCD38724  Navarretia squarrosa Beecher Crampton 1957-7-11 4313 Sonoma State Hwy. 1, 1 1/4 miles southeast Bodega Bay. Comment
  UCR118961  Navarretia squarrosa Beecher Crampton 1957-7-11 4313 Sonoma Central coast, State Highway 1, 1.25 miles southeast Bodega Bay 15 Comment
  JEPS30771  Navarretia viscidula G. Thomas Robbins 1938-6-23 270 Sonoma ca 10 mi w Santa Rosa (just e of marsh on Pitkin ranch); Vine Hill Region Comment
  UC1299129  Nemophila heterophylla Freed W. Hoffman April 1948 2757 Sonoma between Camp Meeker and Monte Rio (along Dutch Bill Creek); , btw Camp Meeker and Monte Rio Comment
  POM65264  Nemophila heterophylla A. A. Heller 1903-4-24 6619 Sonoma Woods near Cazadero. Comment
  POM65327  Nemophila heterophylla M. Alice King 1897-1 s.n. Sonoma Near Healdsburg. Comment
  UC1299128  Nemophila heterophylla Freed W. Hoffman 1947-4-13 778 Sonoma Gilliam Creek near Guerneville (Magnesite Ledge); Gilliam Creek near Guerneville Comment
  UC24253  Nemophila menziesii var. atomaria Michener and Bioletti Mar 1891 Sonoma Sonoma Comment
  SD88406  Nemophila menziesii var. atomaria Darley F. Howe 1972-5-1 4815 Sonoma Duncan Point. Comment
  UCD120238  Nemophila menziesii var. atomaria J. Adams; J. Weick 1993-5-8 254 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
  CAS-BOT-BC231191  Nemophila parviflora Mrs. E. C. Sutliffe 1927-6-1 s.n. Sonoma Monte Rio Comment
  CAS-BOT-BC230567  Nemophila parviflora var. parviflora A. A. Heller 1903-4-23 s.n. Sonoma Fort Ross Comment
  CAS-BOT-BC157698  Nicotiana Peter Rubtzoff 1958-8-30 3939 Sonoma Vacation Beach, near Guerneville, along Russian River Comment
  CAS-BOT-BC231512  Nicotiana Peter Rubtzoff 1986-9-28 9754 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville Comment
  HSC100869  Nicotiana acuminata var. multiflora Peter Warner 2011-11-2 236 Sonoma Annadel State Park, lower Canyon-Spring Creek Trails access from Vietnam Veterans Trail at Park Trail Drive, Santa Rosa. 0 Comment
  CAS-BOT-BC157656  Nicotiana bigelovii Peter Rubtzoff 1959-9-19 4284 Sonoma Vacation Beach, near Guerneville along Russian River. Comment
  CAS-BOT-BC140452  Oemleria cerasiformis A. A. Heller; H. E. Brown 1902-3-12 5043 Sonoma Sonoma Creek, Eastern base of Mt. Hood Comment
  JEPS76925  Oemleria cerasiformis Robert M. Lloyd 1963-2-24 2054 Sonoma 4 mi s State Highway 12 (on State Highway 1) 15 Comment
  POM89246  Oemleria cerasiformis Marcus E. Jones 1982-7-18 3578 Sonoma Duncan Mill Comment
Read comments
Mar 22 2010
  CDA38495  Oenanthe sarmentosa T. C. Fuller 1958-1-29 104 -58 Sonoma Triangle G Ranch, Sonoma Mtn., Petaluma. 0 Comment
  UCD149026  Onopordum illyricum Andrew Smith 2011-12-21 160423 0 Sonoma Santa Rosa; Pepperwood Preserve; 3450 Franz Valley Road., near Mark West Springs Road. Comment
  CAS-BOT-BC500336  Orobanche uniflora subsp. occidentalis Carrie A. Burlingame 1925-3-10 s.n. Sonoma Unspecified Comment
  CAS-BOT-BC368046  Orthocarpus Greg de Nevers 1989-4-1 9055 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 400 Comment
  RSA177967  Orthocarpus attenuatus Robert F. Thorne 1965-4-20 34350 Sonoma On Cavedale Road, 0.5 miles up from State Hwy 12, ca. 4 miles N of Sonoma. 244 Comment
  POM183041  Orthocarpus faucibarbatus A. A. Heller, H. E. Brown 1902-4-15 5292 Sonoma Santa Rosa. Comment
  RSA177981  Orthocarpus faucibarbatus Robert F. Thorne 1965-4-19 34308 Sonoma Guerneville Hwy, 1 mile E of Laguna Road; ca 4 miles W of Santa Rosa. 46 Comment
  RSA789045  Orthocarpus faucibarbatus Carrie A. Herd 1982-4-25 75 Sonoma Crane Creek Regional Park. Comment
  CAS-BOT-BC7001  Orthocarpus faucibarbatus var. albidus David Daniels Keck; Jens Chr. Clausen 1935-6-15 3375 Sonoma 3 mi. S of Russian River mouth Comment
  RSA32863  Orthocarpus faucibarbatus var. albidus A. A. Heller 1937-5-1 16176 Sonoma Along State Highway #1, on the bluff at Bodega Bay, south of the Town of Bay. Comment
  RSA34065  Orthocarpus faucibarbatus var. albidus A. A. Heller 1930-5-14 15083 Sonoma Back of bluff north of Bodega Bay. Comment
  CHSC26016  Oxalis oregana William Larkin 1961-3-28 Sonoma Rio Nido; along canyon road leading to cabins. 30 Comment
  SEINET12181947  Oxalis oregana Unknown 1947-1 93 Sonoma county rd 0.5 mi W of Freezeout Creek, across Russian River from Duncan's Mills Comment
  CDA34796  Oxalis pes-caprae Peter Warner 2010-3-29 123 Sonoma 1670 Bloomfield Road, ~ 3 km south of the center of Sebastopol. Comment
  UCD110992  Oxalis pilosa K. Esau 1932-5-2 s.n. Sonoma Bodega Bay. Comment
  UC35989  Packera eurycephala var. eurycephala H. N. Bolander 1864-1 3963 Sonoma at the Geysers Geysers Comment
  UCR244746  Panicum Peter Rubtzoff 1968-9-21 5977 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville 13 Comment
  CHSC83174  Panicum acuminatum var. acuminatum Beecher Crampton 1964-8-18 7139 f Sonoma The Geysers, 12 miles (in direct line) east of Cloverdale, ca. 1/2 mile east of Geyser Resort area, slope of steam well (locally called 'The Outlaw') or otherwise thermal no. 10 (Thermal Power co.). Banks along road to steam well. 493 Comment
  UCD89129  Panicum acuminatum var. thermale Beecher Crampton 1964-8-18 7149 Sonoma North East part of county. 'The Geysers', Big Sulphur Creek. Comment
  CAS-BOT-BC253773  Panicum capillare Peter Rubtzoff 1971-10-11 6719 Sonoma Russian River, Forest Hills, 5.5 miles E of Guerneville Comment
  UC149534  Panicum capillare J. Burtt Davy July 1896 4019 Sonoma below Guerneville (Russian River Valley); Russian River Valley Comment
  SEINET11690288  Panicum capillare subsp. hillmanii I. Knight, Knight, W.; Howell, J. T. 1986-1 5854 Sonoma Penngrove, at edge of driveway to fire department entrance 18 Comment
  RSA0045170  Panicum dichotomiflorum Greg de Nevers 1996-9-2 10872 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road, at base of Al Cuneo's driveway. 91 Comment
  CAS-BOT-BC253795  Panicum hillmanii Walter & Irja Knight; J. T. Howell 1986-10-9 5854 Sonoma Town of Penngrove at edge of driveway at fire department entrance 12 Comment
  SEINET12329970  Parentucellia viscosa F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -157 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd, between Jimtown & Mercuryville 120 Comment
  SEINET11687492  Paspalum distichum W. Knight, Knight, I. 1985-1 5416 Sonoma near Sonoma on Norrbom Road Comment
  UCD88927  Paspalum distichum David L. Morgan 1955-12-2 s.n. Sonoma Lawn, Sonoma State Home, Eldridge. Comment
  CAS-BOT-BC202868  Paxistima myrsinites Roger Raiche 1985-11-29 RR 50901 Sonoma West of Cloverdale along Skunk Creek on Cherry Creek Road 2-4 mi w. of its origin at US-101 228 Comment
  UC1084353  Pedicularis densiflora G. Thomas Robbins 1937-3-25 10 Sonoma 8-10 mi e of Santa Rosa; Santa Rosa Creek Canyon Comment
  UCD165222  Pelargonium Peter Rubtzoff 1974-6-9 7585 Sonoma Upper Green Valley Marsh area. Comment
  CAS-BOT-BC69303  Pellaea andromedifolia Eliz. Parsons Hawver 1915-6-3 s.n. Sonoma Skaggs Springs Comment
  UCD159765  Pellaea mucronata James A. Neilson Jr. 1975-1-24 3130 Sonoma Mayacmas Mountains; Alder Creek drainage; Dominichelli Ranch. (Elevation and coordinates estimated by label maker.) 731 Comment
  UC71499  Pellaea mucronata var. mucronata Bioletti 1894-1 Sonoma near Hood's Peak Comment
  SEINET5501471 Image available Penstemon heterophyllus Sally Walker 1981-6-8 s.n. Sonoma E side of Mt St Helena 610 Comment
  NY601758  Penstemon heterophyllus var. purdyi A. A. Heller 1902-5-29 5625 Sonoma Mount Hood Comment
  UC27595  Penstemon heterophyllus var. purdyi State Survey 1890-1 6540 Sonoma Russian River bed at Cloverdale; Russian River bed at Cloverdale Comment
  LA209546  Penstemon newberryi var. newberryi F. W. Embree; 1934-6-6 75 Sonoma 1 mi S, 0.25 mi W of Rutherford 1615 Comment
  JEPS83484  Penstemon newberryi var. sonomensis Jack and Betty Guggolz 1986-5-27 876 Sonoma just to the nw lookout on Mt. St. Helena; nw of the lookout on Mt. St. Helena Comment
  CAS-BOT-BC222741  Perideridia gairdneri subsp. gairdneri Peter Rubtzoff 1951-8-19 666 Sonoma Pitkin Marsh, near Forestville. Lower part of the Upper Marsh Comment
  RSA224288  Perideridia gairdneri subsp. gairdneri Peter Rubtzoff 1967-9-16 5883 Sonoma Southern part of the Upper Marsh Comment
  RSA264720  Perideridia gairdneri subsp. gairdneri Peter Rubtzoff 1975-8-16 8328 Sonoma Bennett Mountain Lake, near south side of lake Comment
  UCD151298  Perideridia kelloggii James A. Neilson Jr. 1974-7-25 2896 Sonoma Mayacmas Mountains. One-half mile south of Little Geysers. (Elevation estimated by label-maker using topo map.) 792 Comment
  CAS-BOT-BC413644  Persicaria amphibia Peter Rubtzoff 1971-9-1 6674 Sonoma Spring Creek Reservoir area Comment
  CAS-BOT-BC413663  Persicaria amphibia Peter Rubtzoff 1960-5-29 4425 Sonoma Laguna de Santa Rosa near Trenton (south of Woolsey Road) Comment
  CAS-BOT-BC413656  Persicaria amphibia Peter Rubtzoff 1963-7-6 5196 Sonoma Laguna de Santa Rosa northeast of Graton, ca. 1/2 mi. north of Guerneville Road crossing Comment
  CAS-BOT-BC258011  Persicaria hydropiper Peter Rubtzoff 1973-8-15 7210 Sonoma Russian River at Squaw Rock, 6 miles south of Hopland. Comment
  CAS-BOT-BC413741  Persicaria hydropiper John Thomas Howell 1932-9-18 10779 Sonoma Bank of slough draining Kenwood Marsh Comment
  CAS-BOT-BC418923  Persicaria hydropiperoides Peter Rubtzoff 1963-9-1 5248 Sonoma Bennett Mtn. Lake Comment
  CAS-BOT-BC419112  Persicaria lapathifolia Peter Rubtzoff 1955-8-7 2030 Sonoma Guerneville Marsh Comment
  SD99428  Persicaria lapathifolia Peter Rubtzoff 1962-10-23 5127 Sonoma Atascadero Creek Marsh Comment
  CAS-BOT-BC419268  Persicaria maculosa Peter Rubtzoff 1966-8-25 5798 Sonoma Laguna de Santa Rosa east of Sebastopol Comment
  UCR179375  Petrorhagia nanteuilii Botany 102 students 1993-5-8 285 Sonoma Sugarloaf Ridge, About 50 air miles N of San Francisco, 10 air miles east of Santa Rosa, 2.5 air miles NE of Kenwood and 18 eair miles NW of Napa. In Adobe Canyon N of Sugarloaf Ridge. Bald Mountain Trail less than 1 air mile south of Red Mountain, N of Sonoma Creek 488 Comment
  UC672383  Phacelia californica Herbert L. Mason 1928-7-10 4887 Sonoma Jenner Russian River (mouth of river) Comment
  UCD158781  Phacelia corymbosa James A. Neilson Jr. 1974-6-1 2778 Sonoma Mayacmas Mountains, Geyser Rock, Sonoma County. (Elevation estimated by label maker using Google Earth.) 1118 Comment
  JEPS2394  Phacelia distans Milo S. Baker 1898-4-23 Sonoma Santa Rosa Cr. Canyon Comment
  SD41351  Phacelia distans Edith A. Purer 1932-7-21 4832 Sonoma Bodega Bay Comment
  SD72106  Phacelia distans H. S. Yates 1934-4-21 Sonoma Near Bodega Comment
  UC1299136  Phacelia distans Freed W. Hoffman April 1948 2758 Sonoma between Occidental and Monte Rio Comment
  UCD55067  Phacelia distans Ellen Dean; Tammie Beyerl 2006-4-28 3011 Sonoma Town of Kenwood. East side of Hwy. 12. Kunde Vineyards. Vicinity of Pepperwood Lake Reservoir. 177 Comment
  UCR255879  Phacelia distans Greg de Nevers 1997-4-16 10943 Sonoma North Coast Range, Moon Mountain Road [NNW of Sonoma] 396 Comment
  RSA26565  Phacelia distans J. T. Howell 1929-6-9 4306 Sonoma Near Petrified Forest. Comment
  UCD120385  Phacelia distans E. F. Beukman 1964-4-21 20 Sonoma ca. 1/2 mile from town of Bodega Bay on road to Bodega head. 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
  JEPS83658  Phacelia egena R. Raiche 1987-5-20 70193 Sonoma N of Cazadero, The Cedars, headwaters of Big Austin Creek, creek branch referred to locally as Azealea Creak. 280 Comment
  UCR198234  Phacelia imbricata Dean Kelch, A. G. Murdock, Ben Carter 2007-5-13 07 .267 Sonoma Cavesdale Road 518 Comment
  UCD166121  Phalaris angusta Peter Rubtzoff 1972-6-23 6785 Sonoma Atascadero Creek Marsh. Comment
  CAS-BOT-BC258952  Phalaris aquatica Peter Rubtzoff 1959-6-13 4137 Sonoma Sonoma County Marshes. Willow Creek Marsh Comment
  SEINET11690289  Phalaris aquatica J. T. Howell, Knight, W.; Knight, I. 1986-1 6125 Sonoma Llano Road between Growenstein Hwy and Todd Road Comment
  CAS-BOT-BC259024  Phalaris californica Peter Rubtzoff 1962-5-11 4828 Sonoma Freestone Marsh Comment
  UCD88771  Phalaris californica H. S. Yates 1936-5-16 5618 Sonoma California Forest and Range Experiment Station. Near Green Valley School. 91 Comment
  CDA32602  Phalaris californica P. B. Kennedy 1919-5-16 Sonoma Del Mar. 0 Comment
  CAS-BOT-BC265911  Phalaris lemmonii Peter Rubtzoff 1960-5-15 4339 Sonoma Fife Creek Marsh, Sonoma County Marshes Comment
  UC1132438  Phalaris paradoxa H. S. Yates 1937-6-6 6578 Sonoma near Windsor; Healdsburg Quad. Comment
  UC50459  Phalaris paradoxa Mr. Leckenby June 1896 Sonoma Petaluma Comment
  HSC101099  Phalaris paradoxa Peter Warner 2011-8-10 227 Sonoma Jenner Headlands property, Muniz Ranch Rd., about 0.5 mi. N from Hwy. 1 intersection. 55 Comment
  RSA129159  Phalaris paradoxa H. S. Yates 1937-6-5 6572 Sonoma 5 mi W. of Sonoma 91 Comment
  UC1132445  Phleum alpinum H. S. Yates 1936-5-17 5626 Sonoma 1 1/2 mi e Bodega Port; Duncan Mills Quad. Comment
  JEPS83506  Phlox speciosa subsp. occidentalis Jack and Betty Guggolz 1985-5-29 833 Sonoma w of Geyserville (w of West Dry Creek Rd., near the n edge of Chamise Rd) Comment
  RSA572341  Phoradendron densum Vanessa Ashworth, Nigel Boyle 1994-8-20 55 Sonoma Ca 2.5 miles N of Camp Meeker on Bohemia Hwy from Occidental to Monte Rio. Comment
  UCD102226  Phoradendron leucarpum subsp. tomentosum G. F. Hrusa; T. D. Wilfred 1995-12-3 12481 Sonoma Foote Ranch Property at NW base of Mt. St. Helena. Approx. 1/2 distance to summit along Ida Clayton Rd. 300 Comment
  CDA22385  Phoradendron macrophyllum C. W. Nichols, W. O. McCartney 1966-1-17 Sonoma W. P. Tischer property, 1270 Gravenstein Highway North, ca. 1 mile north of Sebastopol. 0 Comment
  CAS-BOT-BC171220  Phoradendron serotinum subsp. tomentosum G. De Nevers 1981-3-31 587 Sonoma Pepperwood Ranch Comment
  HSC100873  Photinia fraseri Peter Warner 2011-4-6 187 Sonoma Santa Rosa, Howarth Park, along foot-trails S of Lake Ralphine, N of Medica Ct. and Slate Dr. 112 Comment
  CDA36258  Phyla nodiflora M. Lennox & D. Curle 2011-11-21 PDR# 1465997 Sonoma Hwy 121 Bridge (Tolay Creek). 0 Comment
  CAS-BOT-BC376239  Physalis philadelphica Greg de Nevers 1992-10-15 10251 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Franz Creek 304 Comment
  CAS-BOT-BC140615  Physocarpus capitatus Lester Rowntree 1932-6-11 s.n. Sonoma Bodega Comment
  CAS-BOT-BC366871  Physocarpus capitatus Greg de Nevers 1998-4-27 11197 Sonoma Calistoga Road at Alpine Road, along Mark West Creek 121 Comment
  POM139826  Physocarpus capitatus A. A. Heller 1902-6-4 5647 Sonoma Santa Rosa. Comment
  CDA20075  Phytolacca americana R. Gross 2002-10-26 s.n. Sonoma Northwestern California; Hwy 128 at Foss Hill Rd. 0 Comment
  SEINET12162057  Pickeringia montana I. Knight, Knight, W. 1981-1 3971 Sonoma 2.3 mi up Cavedale Rd. from jct of State Rt. #12 Comment
  JEPS74967  Pinus ponderosa Tim Tunison Sonoma Sugarloaf Ridge Trail e of Kenwood (Sonoma Valley, 0.5 mi from site of nearest habitation and 100 yds recently built Vista Trail); Sugarloaf Ridge State Park 487 Comment
  NY62288  Pinus ponderosa H. N. Bolander s.n. 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
  SEINET3874482 Image available Pinus radiata Ralph R. Wilson 1939-7-24 437 Sonoma Near Valley Ford.; 0 Comment
  UCSC008263  Piperia elegans Randall Morgan 1989-1-1 1322 -P Sonoma Malm Flat Trail, Sugarloaf Ridge State Park Comment
  JEPS128295  Piperia elongata Roger Raiche 2010-7-11 034 .10 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  JEPS128341  Piperia elongata Roger Raiche 2010-7-17 037 .10 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UCD166130  Plagiobothrys Peter Rubtzoff 1969-5-3 6014 Sonoma Laguna de Santa Rosa, ca. 1 mile east-southeast of Sebastopol. Comment
  UCR279874  Plagiobothrys Peter Rubtzoff 1969-6-15 6092 Sonoma Laguna de Santa Rosa, c. 1 mile ESE of Sebastapol 21 Comment
  UCR279875  Plagiobothrys Peter Rubtzoff 1969-5-3 6018 Sonoma Laguna de Santa Rosa, c. 1 mile ESE of Sebastopol 21 Comment
  CAS-BOT-BC154994  Plagiobothrys Peter Rubtzoff 1970-5-16 6218 Sonoma 5 miles north of Sears Point. Comment
  RSA788370  Plagiobothrys bracteatus Peter Rubtzoff, H. A. Froebe 1971-5-30 6488 Sonoma 4.25 mi west of Glen Ellen on Bennett Valley Rd. Comment
  UCD120776  Plagiobothrys bracteatus G. F. Hrusa; R. Gross 1996-6-30 13066 Sonoma Permanent spring-derived pool at W end of Diamond Mtn. Rd. Lower of two pools, approx 150 meters apart. 2 m. SW of Calistoga. 700 Comment
  UCR261634  Plagiobothrys bracteatus Ann Howald 2003-5-15 2336 Sonoma Inner North Coast Ranges, Sonoma Mountains, south end, upper east slope, c. 0.1 mile south of Rodgers Creek 205 Comment
  RSA0083875  Plagiobothrys bracteatus Peter Rubtzoff 1970-5-30 6233 Sonoma 5 miles north of Sears Point. Comment
  UCD166062  Plagiobothrys bracteatus Peter Rubtzoff 1971-5-8 6430 Sonoma E foothills of Sonoma Mtns. On Sobre Vista Road, 0.9 mi. W of Arnold Drive. Comment
  UCR118791  Plagiobothrys greenei Beecher Crampton 1955-4-5 2413 Sonoma Santa Rosa Area, 2 miles southwest of Windsor 91 Comment
  UCR70807  Plagiobothrys greenei J. T. Howell 1949-4-6 25304 Sonoma North Coast Range, southwest of Sonoma Comment
  UCD35300  Plagiobothrys nothofulvus Beecher Crampton 1955-4-5 2414 Sonoma 2 miles southwest of Windsor. Comment
  UC353910  Plagiobothrys stipitatus Milo S. Baker 1927-4-9 2053 a Sonoma ca 1 mi w Monroe School House (Forestville Road) Comment
  UCR118958  Plagiobothrys tenellus Beecher Crampton 1955-4-5 2409 Sonoma Santa Rosa Area, 3 miles west of Fulton, along Woolsey Road, just below Mount Olivet School 61 Comment
  RSA783737  Plagiobothrys undulatus Peter Rubtzoff 1969-6-15 6091 Sonoma Laguna de Santa Rosa, about 1 mile ESE of Sebastopol. Comment
  CAS-BOT-BC293683  Plantago Peter Rubtzoff 1958-8-31 3952 Sonoma Atascadero Creek Marsh. Comment
  UC28041  Plantago erecta Edw. L. Greene 1889-1 Sonoma Knight's Valley Comment
  SEINET6990031  Plantago erecta A. G. Vestal, Wanda P. Vestal 1962-4-11 s.n. Sonoma Serpentine area, 1 mile east of Occidental. Comment
  UCD124172  Plantago erecta Frederica Bowcutt 1994-6-21 1804 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; about 18 air miles NW of Napa. Along meadow trail approx. 1/4 mile from trailhead. South facing slope: 15 degrees. 396 Comment
  UCD166337  Plantago subnuda Peter Rubtzoff 1968-7-29 5922 Sonoma Upper Salmon Creek Marsh. Comment
  UC118467  Platystemon californicus Alice Eastwood Apr. 1901 Sonoma Bodega Comment
  CAS-BOT-BC92119  Platystemon californicus Alice Eastwood; John Thomas Howell 1937-5-31 4509 Sonoma 6 miles north of Bodega Bay. Comment
  CAS-BOT-BC92126  Platystemon californicus George H. Mallory 1920-3-29 s.n. Sonoma East side of Rincon Valley 6 miles from Santa Rosa. Comment
  CHSC22438  Plectritis ciliosa Robert A. Schlising 1962-3-31 2121 Sonoma Along Cavedale Road, 1 mi E of Hwy 12. Comment
  POM59709  Plectritis ciliosa subsp. ciliosa A. A. Heller, H. E. Brown 1902-3-24 5139 Sonoma Hills East of Santa Rosa. Comment
  POM253176  Plectritis congesta subsp. nitida A. A. Heller 1938-5-14 15088 Sonoma Just east of Bodega Bay. Comment
  RSA52689  Plectritis macrocera subsp. grayi I. L. Wiggins 1949-4-30 12060 Sonoma 6.8 miles east of Santa Rosa on road to Calistoga. Comment
  RSA796394  Pleuropogon Peter Rubtzoff, John Thomas Howell 1966-4-30 5686 Sonoma North side of Highway 116, 0.5 mile northwest of Stony Point Road crossing. Comment
  OBI22106  Pleuropogon californicus Lewis S. Rose 1965-4-4 65019 Sonoma Sonoma 24 Comment
  UCD90157  Pleuropogon californicus G. F. Hrusa 1996-3-29 12739 Sonoma Napa Valley bottom, immediately S of Tubbs Lane, approximately 2 m. NW of Calistoga. 110 Comment
  UCR111257  Pleuropogon californicus L. S. Rose 1965-4-4 65019 Sonoma Sonoma 24 Comment
  CAS-BOT-BC260932  Pleuropogon californicus var. californicus John Thomas Howell 1944-5-14 19484 Sonoma Between Petaluma and Chileno Valley Comment
  CAS-BOT-BC260973  Pleuropogon californicus var. californicus Peter Rubtzoff 1958-5-10 3648 Sonoma Laguna de Santa Rosa north of Cunningham near Todd Road Comment
  SEINET10611506  Pleuropogon californicus var. californicus Edward Lee 1934-4-30 Lee 753 Sonoma 1 mile west of 2 Rock junction. Comment
  SEINET10826797  Pleuropogon californicus var. californicus John Thomas Howell 1944-5-14 Howell 19484 Sonoma Between Petaluma & Chileno Valley. Comment
  UCD90133  Pleuropogon californicus var. californicus Beecher Crampton 1955-4-5 2418 Sonoma 3 miles northwest of Cotati, Llano Road. Comment
  UCD90181  Pleuropogon californicus var. californicus R. Tofsrud 1942-4-1 s.n. Sonoma 1/4 mile south of County Hospital. Comment
  UCD90199  Pleuropogon californicus var. californicus L. Whitney 1935-3-23 s.n. Sonoma Santa Rosa, Prune Orchard. Comment
  UCSB63833  Pleuropogon davyi James D. Jokerst 1993-5-13 3979 Sonoma collected the Sonoma Air Center Sonoma Air Center Comment
  SEINET190470  Pneumonanthe oregana Unknown 1941-6-22 1638 Sonoma 3.3 miles east of Bay (Bodega Bay). Comment
  RSA0056428  Poa Greg de Nevers 1998-6-10 11281 Sonoma Modini Mayacamas Preserves. Pine Flat Road, near end of town of Pine Flat. Comment
  UCD92210  Poa Collector Unknown 1942-4-1 383 Sonoma between S. R. and County Farm. 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
  CAS-BOT-BC255607  Poa annua Mary P. Wells 1985-9-9 616 Sonoma At Friends House, Rincon Valley, Santa Rosa Comment
  CAS-BOT-BC246636  Poa howellii K. Wagnon 1939-4-17 171 Sonoma Near Wagnon's rock quarry five miles west of Sebastopol Comment
  UCD90528  Poa kelloggii P. B. Kennedy 1915-5-28 s.n. Sonoma Del Mar. Comment
  CAS-BOT-BC256033  Poa pratensis Peter Rubtzoff 1954-7-28 1597 Sonoma Guerneville Marsh Comment
  CAS-BOT-BC243248  Poa secunda subsp. secunda John Thomas Howell; et al. 1982-4-28 54668 Sonoma Bouverie Audubon Preserve, about 1.5 miles E of Glen Ellen near Stuart Creek 137 Comment
  JEPS45816  Poa secunda subsp. secunda Eleanor Armstrong 1932-5-19 163 Sonoma 1/4 mi n Santa Rosa 60 Comment
  CAS-BOT-BC244201  Poa trivialis Roxana S. Ferris; Laura Lorraine 1961-6-14 13542 Sonoma Willow Creek Road between Occidental and Jenner, 5.7 miles from Jenner Comment
  UC573868  Poa trivialis H. S. Yates 1937-5-30 6558 Sonoma 1 1/2 mi n Freestone; Sebastopol Quadrangle Comment
  UC1023577  Poa unilateralis Virginia Bufford 1935-5-19 55 Sonoma Portuguese Beach Comment
  UC573867  Poa unilateralis H. S. Yates 1934-4-3 3796 Sonoma near Bodega; Sebastopol Quadrangle Comment
  CAS-BOT-BC311827  Poaceae Peter Rubtzoff 1972-7-22 6833 Sonoma Laguna, Chileno Valley. Comment
  CAS-BOT-BC329227  Poaceae Peter Rubtzoff 1968-6-20 5899 Sonoma 6.5 miles northeast of Penngrove on Lichan Road. 426 Comment
  RSA264762  Pogogyne douglasii subsp. parviflora Peter Rubtzoff, Tim Tunison, Nancy Harrison 1976-6-5 8585 Sonoma False Lake Meadow area, Annadel State Park. Comment
  UC1002652  Polycarpon tetraphyllum Milo S. Baker and H. K. Wagnon 1954-7-1 12960 Sonoma Santa Rosa; sidewalk crevices in front of Hughes Garage 2nd St. Comment
  UC952859  Polycarpon tetraphyllum Milo S. Baker 1957-4-8 12320 Sonoma Kenwood; Mrs. Ada Hunkins' yard Comment
  UCD109703  Polygala californica Mary M. Hektner; Sue Dakuazku, Cathy Hendel 1974-7-3 107 Sonoma Unit 15 Owners' Map, Sea Ranch, near State Highway 1. Comment
  SEINET12205240  Polygala californica F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -162 Sonoma 0.2 mi W on Harrison Grade Road from junction with Stoetz Lane 146 Comment
  CAS-BOT-BC110536  Polygonum Peter Rubtzoff; Nancy Harrison; Ruth Hass 1974-8-31 7853 Sonoma Kenwood Marsh. Comment
  UCD166307  Polygonum Peter Rubtzoff 1966-8-25 5810 Sonoma Forest Hills, 5.5 mi. east of Guerneville. Russian River. Comment
  CAS-BOT-BC414119  Polygonum aviculare subsp. aviculare A. A. Heller 1902-6-11 5693 Sonoma Santa Rosa Creek, east of Santa Rosa Comment
  RSA234544  Polygonum hydropiperoides Peter Rubtzoff 1960-9-14 4535 Sonoma Laguna de Santa Rosa, E of Graton, (between Occidental and Guerneville road) Comment
  RSA234545  Polygonum hydropiperoides Peter Rubtzoff 1958-8-31 3954 Sonoma Atascadero Creek Marsh. Comment
  RSA94326  Polygonum hydropiperoides Peter Rubtzoff 1951-9-2 711 Sonoma N of the Lower marsh, in the creek Comment
  SEINET11719959  Polypodium californicum W. Knight, Knight, I. 1990-1 6570 Sonoma Armstrong Redwoods State Reserve Comment
  CAS-BOT-BC76862  Polypodium calirhiza Walter Knight; Irja Knight 1963-12-27 449 Sonoma Pine Flat Road Comment
  JEPS76924  Polypodium calirhiza Robert M. Lloyd 1963-2-24 2055 Sonoma 4 mi. s. of State Hwy. 12 on State Hwy. 1 (above hwy.) 15 Comment
  CAS-BOT-BC320497  Polypogon Peter Rubtzoff 1973-9-4 7294 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC331491  Polypogon interruptus Peter Rubtzoff 1973-7-24 7194 Sonoma Upper Green Valley Marsh. 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
  UCD51671  Polypogon interruptus Collector unknown 1941-10-1 Sonoma Santa Rosa Creek by S.P. R.R. Comment
  CAS-BOT-BC233222  Polypogon maritimus Peter Rubtzoff 1968-6-20 5895 Sonoma 6.5 miles NE of Penngrove on Lichen Road 426 Comment
  RSA262195  Polypogon maritimus Peter Rubtzoff 1968-6-20 5895 Sonoma 6.5 mi. northeast of Penngrove on Lichau Road. 427 Comment
  CAS-BOT-BC237400  Polypogon monspeliensis Greg de Nevers 1981-5-9 1027 Sonoma Pepperwood Ranch. At the Red Corral, at the McCann Homestead Comment
  CAS-BOT-BC237410  Polypogon monspeliensis Peter Rubtzoff 1958-8-9 3854 Sonoma Laguna de Santa Rosa N of Sebastopol (near Occidental Road) Comment
  UC505685  Polypogon monspeliensis C. R. and B. S. Ball 1933-5-30 2510 Sonoma Bodega Bay Comment
  UCD91352  Polypogon monspeliensis David L. Morgan 1955-6-25 s.n. Sonoma On Bloomfield Rd., 2 mile north of junction of Petaluma-Valley Ford Rd. 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
  SEINET11719958  Polystichum californicum Unknown 1987-1 70019 Sonoma W of Cloverdale, Hot Springs Rd area, Lake Somona near inundation point of Brush Creek 183 Comment
  SEINET6744750  Polystichum californicum Michener, Bioletti 1893-1 Sonoma Adobe Canon Comment
  SEINET10794020  Polystichum dudleyi Wendy Born Born s.n. Sonoma Armstrong Redwoods State Park, along road to the Pack Station, ca. 3/4 the way up (immediately across road from large downed tree, on right side of road). Population of P. dudleyi is on left side of road, ca. 100 plants, mixed with Polystichum hybrids, Dryopteris arguta. Comment
  UC1041134  Polystichum munitum J. W. Congdon 1892-5-29 Sonoma Cazadero Comment
  CAS-BOT-BC257354  Populus Peter Rubtzoff 1980-5-26 9447 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  RSA262241  Populus alba Peter Rubtzoff 1972-8-25 6854 Sonoma San Antonio Creek on E side of Hwy 101 crossing. Comment
  CAS-BOT-BC445299  Portulaca oleracea Peter Rubtzoff 1958-8-16 3870 Sonoma Laguna de Santa Rosa north of Sebastopol (nr. Occidental Road). Comment
  CAS-BOT-BC376302  Portulacaceae Greg de Nevers 1989-2-1 9036 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. By Murry. 400 Comment
  CDA14199  Potamogeton nodosus G. F. Hrusa, R. Gross 1997-8-31 14092 Sonoma North Coast Biodiversity Arena; Common around edges of pond on Foote Ranch, NW base of Mt. St. Helena. Immed. NE of int. of Hwy. 128 and Ida Clayton Road. Flowering spikes emersed. 106 Comment
  CAS-BOT-BC454083  Potamogeton pusillus subsp. pusillus Peter Rubtzoff 1961-5-24 4610 Sonoma Upper Stemple Creek Marsh. Comment
  CAS-BOT-BC141961  Potentilla anserina subsp. pacifica Alice Eastwood 1917-5-13 s.n. Sonoma Bodega Bay Comment
  CAS-BOT-BC141950  Potentilla anserina subsp. pacifica Peter Rubtzoff 1960-5-18 4386 Sonoma Bodega Head Marsh - Sonoma County Marshes Comment
  UC963929 Image available Potentilla uliginosa Milo S. Baker 1947-6-26 11831 Sonoma ca 1 mi (airline) sw Cunningham Sta.; North Bay Counties, Cunningham Marsh Comment
Read comments
Oct 28 2010
  UC1288500  Prunella Andrew P. Nelson 1960-1 646 -9 Sonoma Pitkin Marsh Comment
  UCD125268  Prunella vulgaris Beecher Crampton 1955-6-17 2934 Sonoma 0.5 mile south of Guerneville. Comment
  CDA40757  Prunella vulgaris subsp. lanceolata G. D. Barbe 1982-5-27 3617 Sonoma 3.6 miles east of Stewarts Point (Highway 1) on Scaggs Spring Road. Comment
  JEPS23732  Prunella vulgaris var. lanceolata Hilda W. Grinnell 1933-7-21 Sonoma Bodega Bay Comment
  JEPS62502  Prunella vulgaris var. lanceolata Alice King June 1897 Sonoma Healdsburg Comment
  UC1084462  Prunella vulgaris var. lanceolata G. Thomas Robbins 1937-6-5 225 Sonoma about 10 mi w Santa Rosa (Vine Hill region) Comment
  UC1288496  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-8-3 646 Sonoma Pitkin Marsh Comment
  CAS-BOT-BC159846  Prunus cerasifera Greg de Nevers 2002-3-12 12646 Sonoma North of Stewart Creek, near old homestead. Bouverie Audubon Preserve, Highway 12, Glen Ellen Comment
  CAS-BOT-BC159901  Prunus emarginata A. A. Heller; H. E. Brown 1902-3-21 5120 Sonoma Hills Southeast of Santa Rosa Comment
  UCR254918  Prunus virginiana var. demissa Greg de Nevers 1998-6-2 11267 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC356502  Pseudognaphalium beneolens F. G. Krauss 1893-10-4 s.n. Sonoma Krauss Ranch 5 mi. west of Calistoga Comment
  CAS-BOT-BC357167  Pseudognaphalium luteoalbum Walter Knight; Irja Knight 1985-9-23 5180 Sonoma Lower Tubbs Island, 1/4 mile from San Pablo Bay 0 Comment
  CAS-BOT-BC357411  Pseudognaphalium microcephalum Walter Knight; Irja Knight 1963-9-15 300 Sonoma Los Alamos Rd, Santa Rosa Comment
  CAS-BOT-BC361624  Pseudognaphalium stramineum R. E. Frenkel 1964-6-22 614 Sonoma On California Hwy. 1 at Sonoma Coast S.P., south of Coleman Beach 18 Comment
  UCD133693  Pseudognaphalium stramineum Frederica Bowcutt 1984-6-23 414 Sonoma Salt Point State Park. Approx. 20 miles N of Jenner and 80 miles S of Fort Bragg on the Sonoma County coast. W of Highway 1. Immediately N of Gerstle Cove near large parking lot. 15 Comment
  UCD135205  Pseudognaphalium stramineum P. G. Connors 1992-6-9 276 Sonoma Bodega Head and Dunes. Comment
  CAS-BOT-BC80178  Pseudotsuga menziesii Irja Knight; Walter Knight 1964-11-15 795 Sonoma Hood's Peak near Johnson Lake Comment
  UC1193109  Pseudotsuga menziesii var. menziesii P. Zinke 1949-6-14 60 Sonoma ridge between Smith <Creek> and Dry Creek; Quadrangle 61-A-3 457 Comment
  UCD135111  Pseudotsuga menziesii var. menziesii J. Adams; J. Weick 1993-5-8 260 Sonoma Sugarloaf State Park, about 40 air miles N of San Francisco; about 11 air miles E of Santa Rosa and 2.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge and S of Red Mtn 1 mile. Comment
  CAS-BOT-BC166938  Psilocarphus Peter Rubtzoff 1966-5-30 s.n. Sonoma Laguna de Santa Rosa, northeast of Graton, ca. 0.5 mi. N of Guerneville Road. Comment
  RSA784564  Psilocarphus Peter Rubtzoff 1963-7-14 5203 Sonoma Laguna de Santa Rosa, east of Graton. Comment
  RSA784565  Psilocarphus Peter Rubtzoff 1966-5-30 5746 Sonoma Laguna de Santa Rosa, northwest of Graton, at end of Piner Road Comment
  UCD150849  Psilocarphus chilensis 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
  UC35754  Psilocarphus oregonus Miss King 1897-1-1 Sonoma Healdsburg 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
  CDA8508  Psilocarphus tenellus var. tenellus G. D. Barbe 1991-6-6 4429 Sonoma Annadel State Park, Santa Rosa 0 Comment
  RSA784485  Pteridium Peter Rubtzoff 1974-6-2 7528 Sonoma Upper Green Valley Marsh area. Comment
  CAS-BOT-BC72686  Pteridium aquilinum Irja Knight; Walter Knight 1964-11-15 s.n. Sonoma Hood's Peak at Johnson Lake Comment
  JEPS78472  Pyrola aphylla Edward Lee 1936-6-7 2207 Sonoma MacLaren Trail, Bohemian Grove Comment
  UC424815  Quercus X morehus unknown 1930-3-1 3880 Sonoma Vine Hill Region, on <?>rei Ranch Vine Hill Region Comment
  UCSB22673  Quercus agrifolia var. agrifolia McCarthy, Sharon 1965-4-16 Sonoma Approximately 0.5 mile north of bridge at Leveroni Rd., Sonoma 25 Comment
  POM188377  Quercus chrysolepis Marcus E. Jones 1931-8-3 28846 Sonoma Cloverdale. Comment
  UC847903  Quercus chrysolepis Alice Eastwood 1918-9-3 7953 Sonoma Mount St. Helena Comment
  CAS-BOT-BC79569  Quercus dumosa Milo S. Baker 1927-10-15 s.n. Sonoma Santa Rosa - St. Helena Road Comment
  CDA21883  Quercus durata D. G. Kelch 2006-10-4 6 .499 Sonoma Along Cavedale Road about 5 KM E of Route 12. Comment
  UCD45936  Quercus durata var. durata Maunsell Van Rensselaer 1941-10-12 s.n. Sonoma Rincon Ridge, Sonoma County, California. Comment
  CAS-BOT-BC94672  Quercus garryana Alice Eastwood 1921-4-24 10388 Sonoma Santa Rosa Comment
  CDA31315  Quercus garryana D. G. Kelch, Ed Biffin 2010-5-3 10 .189 Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  SJSU16081  Quercus garryana Allen W. Jacobs 1935-7-1 5 Sonoma Found on Russian River terrace; across the river from Hilton. Found well up and near the end of the trail above Summer Home park. High up SW facing slope past 2nd road and at end of off wood road at right. Comment
  UCD46175  Quercus garryana Rimo Baeigalupi 1958-11-23 6961 Sonoma On property of Fred H. Clemens, at junction of Arata Road and U.S. Highway 101, 4 miles south of Healdsburg. Comment
  UCD46202  Quercus garryana Roman Gankin 1967-10-4 1078 3 Sonoma Near Rocky Mountain, north of Guerneville, Sonoma County, California. Comment
  JEPS77253  Quercus garryana Robert M. Lloyd 1963-4-24 2392 Sonoma 13.8 mi from State Highway 12 (on road to Oakdale) 365 Comment
  UC5610  Quercus kelloggii unknown 971 Sonoma Sonoma Comment
  UCD46739  Quercus kelloggii John M. Tucker 1952-9-20 2622 Sonoma California, Sonoma Co.; Voight Ranch, ca. 1.25 mi. (airline) southwest of Cunningham, along a lane running east from the Voight farmhouse; Comment
  CAS-BOT-BC62802  Quercus lobata Peter Rubtzoff 1951-8-18 637 Sonoma Pitkin Marsh, near Forestville, Western branch of the Upper Marsh Comment
  CAS-BOT-BC62805  Quercus lobata Greg de Nevers 1981-9-5 1815 Sonoma Pepperwood Ranch, at Hansel's Corral, by the bottom of the Studio Road Comment
  CAS-BOT-BC62807  Quercus lobata Mary P. Wells 1984-4-20 188 Sonoma Ground of Friends House 684 Benicia Drive, Santa Rosa, Rincon Valley Comment
  CAS-BOT-BC62848  Quercus lobata Mary P. Wells 1984-6-18 356 Sonoma Friends House grounds, Rincon Valley, Santa Rosa Comment
  RSA94650  Quercus lobata Peter Rubtzoff 1951-8-18 637 Sonoma Western branch of the Upper Marsh. Comment
  SJSU10147  Quercus lobata A. W. Jacobs 1939-8-21 Sonoma Russian R near Hilton Comment
  UC1135382  Quercus wislizeni E. Armstrong 1934-3-26 908 Sonoma 1 mi w Camp Meeker; Sebastopol Quad. 152 Comment
  UCD162763  Quercus wislizeni Dylan O. Burge 2014-6-5 1642 Sonoma Mayacmas Mountains, western slope of Hooker Canyon, at Elarra Reserve. 500 Comment
  CDA10852  Quercus wislizeni var. wislizeni G. F. Hrusa, G. L. Stebbins 1994-4-8 11728 Sonoma North Coast Biodiversity Arena; Cavedale Edaphic Island, 2.5 m. E of Hwy 12. Mayacmas Mts. Comment
  UCR255873  Ranunculus Greg de Nevers 1996-4-18 10793 Sonoma North Coast Range, Knights Valley Marsh, on Bavarian Lion Ranch 137 Comment
  CAS-BOT-BC376399  Ranunculus Greg de Nevers 1996-4-18 10793 Sonoma Knight's Valley Marsh, on Bavarian Lion Ranch, south end of valley. 91 Comment
  SEINET9334866  Ranunculus californicus John Nelson, Wnek, R. 2000-3-7 20939 Sonoma Coleman Beach Comment
  POM268814  Ranunculus californicus A. A. Heller, H. E. Brown 1902-3-14 s.n. Sonoma Near Santa Rosa. Comment
  CAS-BOT-BC378697  Ranunculus californicus var. californicus Marcus E. Jones 1924-4-24 s.n. Sonoma Petaluma Comment
  CAS-BOT-BC378689  Ranunculus californicus var. californicus Walter Knight; Irja Knight 1964-2-27 532 Sonoma Highway 1 near Plantation turnoff Comment
  CAS-BOT-BC378701  Ranunculus californicus var. californicus John Thomas Howell 1931-4-2 6044 Sonoma Boyes Springs Comment
  JEPS97529  Ranunculus lobbii R. D. Stone and W. B. Davilla 1985-3-13 654 Sonoma Shiloh Ranch Mark West Springs (2.3 airmiles NE of int. of Shiloh and Faught rds.; 0.6 airmiles WSW of); valley of sm. tributary in Mark West Creek drainage 259 Comment
  UC75778  Ranunculus lobbii Miss M. Alice King April, 1897 Sonoma near Healdsburg Comment
  JEPS55143  Ranunculus muricatus W. L. Jepson 1914-4-11 5803 Sonoma Sonoma Valley 35 Comment
  UC486512  Ranunculus muricatus H. E. and S. T. Parks 1930-5-9 617 Sonoma Alexander Valley; on creek entering valley Comment
  JEPS128334  Ranunculus occidentalis Roger Raiche 2010-4-17 015 .10 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  RSA268383  Ranunculus occidentalis var. eisenii Lyman Benson 1935-3-31 6405 Sonoma Hwy 101, N Coast, Russian River. 244 Comment
  UCD158817  Ranunculus occidentalis var. occidentalis James A. Neilson Jr. 1974-4-17 2890 Sonoma Mayacmas Mountains. Above Big Geyser Canyon. (Elevation estimated using topo map by label maker.) 914 Comment
  RSA281534  Ranunculus orthorhynchus var. bloomeri Michener, Bioletti 1893-04 s.n. Sonoma Kenwood Comment
  UC480962  Ranunculus pusillus Katharine Brandegee Sonoma Sebastopol Comment
  RSA94006  Ranunculus pusillus Peter Rubtzoff 1951-6-17 269 Sonoma Western branch of the Upper Marsh. Comment
  UC1084367  Raphanus sativus G. Thomas Robbins 1937-3-26 33 Sonoma along road to Bodega (just e of Bodega) Comment
  CAS-BOT-BC74236  Raphanus sativus Mary P. Wells 1985-5-26 499 Sonoma Ca. 0.5 mile north of Stewart's Point, along Highway #1. Comment
  CAS-BOT-BC55944  Rhamnus crocea G. DeNevers 1981-6-27 1695 Sonoma On a walk from Franz Valley Road up the main Creek draining the Devil's Kitchen and West along a chaparral ridge Comment
  CAS-BOT-BC59447  Rhamnus ilicifolia Milo S. Baker 1927-11-5 2502 a Sonoma 2-3 mi. west of Skagg's along Hwy Comment
  CDA11980  Rhamnus tomentella subsp. tomentella G. F. Hrusa, T. D. Wilfred 1995-12-3 12485 Sonoma North Coast Biodiversity Arena; W-facing slope of main ridge running SW from Chalk Mtn. NW base of Mt. St. Helena. Comment
  CAS-BOT-BC200348  Rhododendron occidentale var. occidentale Peter Rubtzoff 1959-6-7 4106 Sonoma Bank of Russian River betw. East Guernewood and Vacation Beach, near Guerneville Comment
  CAS-BOT-BC200349  Rhododendron occidentale var. occidentale Mary P. Wells 1984-8-8 433 B Sonoma Deer Trail Road north of present end. The Sea Ranch Comment
  CAS-BOT-BC111862  Rhynchospora alba Milo S. Baker; John Thomas Howell 1945-7-18 11113 Sonoma Pitkin Marsh, upper bog. Comment
  RSA74060  Rhynchospora alba Milo S. Baker 1945-7-18 11113 Sonoma Pitkin Marsh, upper bog Comment
  CAS-BOT-BC111895  Rhynchospora californica John Thomas Howell 1945-8-14 21382 Sonoma Perry Marsh 182 Comment
  RSA0065918  Rhynchospora californica Peter Rubtzoff 1961-10-18 4763 Sonoma Cunningham Marsh. Comment
  JEPS117112  Rhynchospora capillacea Peter Warner 2010-7-29 175 Sonoma Lower Pitkin Marsh, N of primary drainage channel, ~ 350 m, N 44 deg.E from Hwy. 116 gate, in quaking bog (fen) area. Comment
  CAS-BOT-BC111903  Rhynchospora capitellata Peter Rubtzoff 1951-9-2 726 Sonoma Pitkin Marsh; lower part of the upper marsh. Comment
  JEPS117111  Rhynchospora globularis Peter Warner 2010-7-29 174 Sonoma Lower Pitkin Marsh, ~ 425 m, N 33 deg. E from Hwy. 116 gate, ~ 100 m, N 40 deg. E from nearest fence corner to west, ~ 20 m E of secondary drainage channel dense w/ Rubus armeniacus. Comment
  RSA94070  Rhynchospora globularis var. recognita J. T. Howell 1945-8-14 21393 Sonoma Perry Marsh Comment
  CAS-BOT-BC111936  Rhynchospora recognita Peter Rubtzoff 1951-7-21 506 Sonoma Pitkin Marsh, Damp, open area between the Upper and Lower Marshes. Comment
  UC75435  Ribes californicum Milo S. Baker 1898-4-6 22 Sonoma Skagg's Springs Comment
  RSA0025035  Ribes divaricatum var. pubiflorum J. C. Roos 1939-4-1 312 Sonoma Hood Peak Range west of Calistoga. Comment
  UC75452  Ribes menziesii Milo S. Baker 1899-6-2 Sonoma Sonoma Creek Comment
  UCD151193  Ribes menziesii James A. Neilson Jr. 1974-7-10 s.n. Sonoma Mayacmas Mountains, west of Geyser Rock, along road to PG and E geothermal units 9 and 10, eastern Sonoma County. (Elevation estimated using Google Earth by label maker.) 1036 Comment
  CAS-BOT-BC209371  Ribes sanguineum var. glutinosum Dorothy Scherer 1996-3-16 005 Sonoma West of Hwy 1 and south of Kolmer Gulch, Fort Ross State Historic Park 9 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
  CAS-BOT-BC74699  Rorippa curvisiliqua Peter Rubtzoff 1958-8-16 3866 Sonoma Laguna de Santa Rosa north of Sebastopol (near Occidental Road). 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
  UCR254919  Rosa Greg de Nevers 1989-1 9071 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC152668  Rosa californica D. E. Breedlove 1980-6-27 44767 Sonoma Pepperwood Ranch W of Knights Valley Comment
  UCD113845  Rosa gymnocarpa Frederica Bowcutt 1994-5-1 1766 b Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco; about 10 air miles E of Santa Rosa; about 1.5 air miles N of Kenwood; about 18 air miles NW of Napa. Along Sonoma Creek just E of confluence with Bear Creek near bridge over Sonoma Creek. On Goodspeed trail about 30 yards from trailhead. 198 Comment
  CAS-BOT-BC146770  Rosa gymnocarpa F. G. Krauss 1895-5-6 s.n. Sonoma Mountains near [Franze] Franz and Knights Valleys Comment
  CAS-BOT-BC148195  Rosa rubiginosa Lewis S. Rose 1955-10-24 55188 Sonoma Two Rock 30 Comment
  CAS-BOT-BC262810  Rubus Peter Rubtzoff 1958-5-3 3613 Sonoma Atascadero Creek Marsh. Comment
  UCR279643  Rubus Peter Rubtzoff 1964-5-20 5306 Sonoma Bodega Bay Marsh 15 Comment
  RSA245523  Rubus discolor Larry E. DeBuhr, Gary D. Wallace 1973-5-18 1086 Sonoma Pitkin-Jones Tree Farm. On Vine Hill Rd 1.3 miles N of jct with Gurneyville Rd. W of Santa Rosa. Comment
  RSA800354  Rubus spectabilis Peter Rubtzoff 1957-4-28 3291 Sonoma Duncans Mills Marsh. Comment
  RSA800355  Rubus spectabilis Peter Rubtzoff 1959-6-6 4089 Sonoma Willow Creek Marsh. Comment
  UC467858  Rubus spectabilis Katharine Brandegee June 1905 Sonoma Bodega Comment
  UCR279611  Rubus spectabilis Peter Rubtzoff 1959-6-6 4089 Sonoma Willow Creek Marsh 9 Comment
  UCR47956  Rubus spectabilis var. franciscanus D. Neubacher 1975-5-11 17 Sonoma Duncan Mills Campground in Duncan Mills Comment
  CAS-BOT-BC158720  Rubus ulmifolius Walter Knight; Irja Knight; Keith Wagnon 1984-8-30 5064 Sonoma Between Enterprise Road and Cooper's Graove on Sonoma Mt. Road Comment
  CAS-BOT-BC157176  Rubus ursinus Peter Rubtzoff 1951-6-30 290 Sonoma Uppermost part of the western branch of the Upper Marsh Comment
  CAS-BOT-BC376293  Rumex Greg de Nevers 1995-8-1 10764 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Skovie 487 Comment
  CAS-BOT-BC166796  Rumex Peter Rubtzoff 1962-8-22 5039 Sonoma Bodega Bay Marsh. Comment
  RSA790986  Rumex Peter Rubtzoff 1958-7-19 3756 Sonoma Laguna de Santa Rosa, east of Sebastopol. Comment
  UCD148370  Rumex Peter Rubtzoff 1955-8-7 2029 Sonoma Guerneville Marsh. Along Pocket Canyon. Comment
  CAS-BOT-BC422235  Rumex acetosella J. D. Randall 1907-7-12 297 Sonoma Sebastopol Comment
  SD39768  Rumex acetosella E. A. Purer 1932-7-21 4039 Sonoma Bodega Bay Comment
  UCD100990  Rumex acetosella Frederica Bowcutt 1994-5-21 1827 Sonoma Sugarloaf Ridge State Park. About 40 air miles N of San Francisco, 11 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood. 1 mile from trailhead. 396 Comment
  UCD167342  Rumex conglomeratus James Neilson 1981-5-28 4033 Sonoma Mayacmas Mountains. Lookout point along road fill over culvert 1/2 mi. west Big Geysers. Geysers Healdsburg Rd. (Exact location unknown. Coordinates estimated by label maker.) Comment
  CAS-BOT-BC166969  Rumex crispus Peter Rubtzoff 1959-9-13 4268 Sonoma Vacation Beach, near Guerneville. Comment
  RSA782168  Rumex crispus Anna Kostikova, Glenn Litsios, Sarah Burgy 2010-7-3 162 Sonoma Westside Rd, Bodega bay area Comment
  UCD148318  Rumex crispus Peter Rubtzoff 1954-6-6 1465 Sonoma Guerneville Marsh. Comment
  RSA783836  Rumex fueginus Peter Rubtzoff 1963-10-5 5288 Sonoma Laguna de Santa Rosa. E of Graton. Comment
  CAS-BOT-BC166659  Rumex obtusifolius Peter Rubtzoff 1962-10-23 5121 Sonoma Laguna de Santa Rosa area east of Graton, between Occidental and Guerneville Roads. Comment
  CAS-BOT-BC434141  Rumex transitorius M. S. Baker 1945-8-14 s.n. Sonoma Santa Rosa Junior College, Santa Rosa Comment
  UCD108456  Rupertia physodes P. B. Kennedy 1915-5-31 s.n. Sonoma Woods near Annapolis. Comment
  UCD92339  Rytidosperma penicillatum Beecher Crampton 1957-7-22 4358 Sonoma below Bishop Pine Forest, along State Hwy. 1, 2 miles north of Stewards Point. Comment
  SEINET4344595 Image available Rytidosperma penicillatum Unknown 2003-7-19 18246 Sonoma Bodega Bay, coastal meadow behind community center on west side of Hwy 1 north of town. Comment
  CAS-BOT-BC445693  Sagittaria cuneata Peter Rubtzoff 1961-7-22 4666 Sonoma Bennett Mtn. Lake. Comment
  SEINET11933369  Salicornia depressa W. Knight, Knight, I. 1984-1 5083 Sonoma Gilardi's Resort near Lakeville on Petaluma River 3 Comment
  CAS-BOT-BC290700  Salix Peter Rubtzoff 1973-9-9 7313 Sonoma Kenwood Marsh. Comment
  RSA0037215  Salix Peter Rubtzoff, James E. Eckenwalder 1974-4-6 7346 Sonoma Kenwood Marsh. At south margin of the area. Comment
  CAS-BOT-BC125946  Salix X rubens Milo S. Baker 1928-3-12 2734 b Sonoma Hawkins Residence Comment
  UC517938  Salix X sepulcralis W. A. Setchell 1934-3-17 Sonoma Valley Ford Rd. 6 mi. from Petaluma Comment
  CAS-BOT-BC103085  Salix bonplandiana Peter Rubtzoff 1957-5-4 3320 Sonoma Vacation Beach, near Guerneville; bank of Russian River Comment
  RSA534609  Salix bonplandiana Peter Rubtzoff, Theodore J. Crovello 1964-9-3 5494 Sonoma Bodega Bay Marsh. Comment
  CDA42345  Salix exigua D. G. Kelch 2012-5-2 12 .066 Sonoma Dry Creek Valley; near Preston Organic Winery along tributary of Dry Creek. Comment
  RSA534608  Salix exigua Peter Rubtzoff 1953-5-16 1358 Sonoma Vacation Beach. Near Guerneville. along Russian River. Comment
  UC453083  Salix exigua var. hindsiana W. A. Setchell 1931-7-25 4 Sonoma bed of Russian R. at Bohemian Grove near Monte Rio Comment
  UCD151172  Salix exigua var. hindsiana James A. Neilson Jr. 1974-3-3 3022 Sonoma Mayacmas Mountains. The Geysers. Site A-8. (Elevation estimated using Google Earth by label maker.) 426 Comment
  JEPS30834  Salix hookeriana Rimo Bacigalupi and L. R. Heckard 1962-6-19 8590 Sonoma just n Horseshoe Cove (near Bodega) Comment
  UC66157  Salix laevigata A. A. Heller 1902-4-18 5335 Sonoma on Russian R. near Windsor; Russian R. Comment
  SEINET10392978  Salix laevigata A. A. Heller 1902-3-28 5174 Sonoma Santa Rosa Creek, E of Santa Rosa. Comment
  UC1042521  Salix lasiandra subsp. lasiandra Peter Rubtzoff 1951-11-24 837 Sonoma Pitkin Marsh near Forestville (between upper and lower marshes) Comment
  UC66172  Salix lasiandra subsp. lasiandra A. A. Heller 1902-4-18 5329 Sonoma on Russian R. near Windsor; Russian R. Comment
  CAS-BOT-BC107098  Salix lasiolepis A. A. Heller 1902-3-11 5025 Sonoma Hills two miles east of Santa Rosa Comment
  RSA534495  Salix lasiolepis Peter Rubtzoff 1964-8-26 5487 Sonoma Marsh 5 miles NE of Penngrove on Lichau Road 213 Comment
  UC511620  Salix lasiolepis W. A. Setchell 1933-7-2 2 Sonoma Bohemian Grove Monte Rio (well away from Russian River) Comment
  UC524779  Salix lasiolepis W. A. Setchell 1934-7-10 1 Sonoma Coast Hwy 1-2 ni s Fort Ross 76 Comment
  UC66160  Salix lasiolepis A. A. Heller 1902-3-10 5016 Sonoma hills 2 mi se Santa Rosa Comment
  UC66163  Salix lasiolepis A. A. Heller 1902-3 5097 Sonoma e Santa Rosa; Santa Rosa Creek Comment
  CAS-BOT-BC128319  Salix lasiolepis var. lasiolepis W. A. Setchell 1933-7-2 2 Sonoma Bohemian Grove, well away from the Russian River, Monte Rio Comment
  RSA94334  Salix lucida subsp. lasiandra Peter Rubtzoff 1952-3-23 891 Sonoma S of the Upper Marsh. Comment
  UC453094  Salix melanopsis W. A. Setchell 1931-7-25 13 Sonoma Bohemian Grove near Monte Rio (Russian R.); Russian R. Comment
  CAS-BOT-BC126182  Salix scouleriana Peter Rubtzoff 1955-8-13 2048 Sonoma Duncans Mills Marsh Comment
  CAS-BOT-BC126186  Salix scouleriana Baker; Ball; Bracelin; Crum 1931-5-9 342 Sonoma Two km. east of Occidental, on Occidental Grade Comment
  CAS-BOT-BC126194  Salix scouleriana W. A. Setchell 1933-7-9 3 Sonoma Bohemian Grove, well away from the Russian River, Monte Rio Comment
  CAS-BOT-BC126200  Salix scouleriana Milo S. Baker 1933-1-1 s.n. Sonoma Along Santa Rosa-Bodega Highway, at O'Farrell Hill, 3 miles west of Sebastopol Comment
  POM214873  Salix scouleriana Y. Mexia 1933-2-18 s.n. Sonoma 4 miles S of Camp Meeker. Comment
  POM219058  Salix scouleriana Baker, Carleton R. Ball, H. P. Bracelin, Crum 1931-5-9 343 Sonoma 2 km E of Occidental on Occidental Grade. Comment
  POM219077  Salix scouleriana Baker, Carleton R. Ball, H. P. Bracelin, Crum 1931-5-9 342 Sonoma 2 km E of Occidental on Occidental Grade. Comment
  RSA90536  Salix scouleriana Milo S. Baker 1939-4-12 3428 -c Sonoma W of Occidental 0.5 mile Coleman Valley Rd Comment
  LA208960  Salix sitchensis Ball; Bracelin, Parks 1931-4-21 36 Sonoma Maacama Creek, 25 km NW of Calistoga Comment
  POM219061  Salix sitchensis Baker, Carleton R. Ball, H. P. Bracelin, Crum 1931-5-9 344 Sonoma About 2 km E of Bodega Bay. Comment
  SBBG57980  Salix sitchensis C. R. Ball, H. P. Bracelin, H. E. Parks, S. Parks 1931-4-21 35 Sonoma Maacama Crk, 25 km NW of Calistoga Comment
  UC1084371  Salix sitchensis G. Thomas Robbins 1937-3-26 41 Sonoma creek near Bodega Bay Bodega Bay Comment
  UC453080  Salix sitchensis W. A. Setchell 1931-7-25 2 Sonoma bank of Russian R. at Bohemian Grove near Monte Rio; Russian R. Comment
  UC482066  Salix sitchensis Baker, Ball, Bracelin, and Crum 1931-5-9 344 Sonoma 2 km. e. Bodega Bay Comment
  UC524782  Salix sitchensis W. A. Setchell 1934-7-10 2 Sonoma opposite C. Call's house Fort Ross (Coast Hwy.) 30 Comment
  CAS-BOT-BC176848  Salsola australis Mary P. Wells 1992-11-16 1075 Sonoma Sixth Street where Adams Street ends, Santa Rosa Comment
  SEINET12329797  Salvia columbariae W. Knight, Knight, I.; Edwards, S. 1986-1 5339 Sonoma Geyser Peak, Access from Healdsburg-Geysers Road 869 Comment
  CAS-BOT-BC225208  Salvia sonomensis Alice Eastwood 1923-5-9 s.n. Sonoma Mt. St. Helena Comment
  CAS-BOT-BC225218  Salvia sonomensis Walter Knight; Irja Knight 1964-1-17 515 Sonoma Upper Hooker Canyon, Cavedale Road Comment
  POM262891  Salvia sonomensis J. C. Roos 1939-4-1 311 Sonoma Hood Peak Range west of Calistoga. Comment
  CAS-BOT-BC221105  Salvia sonomensis K. J. Murray 1980-4-12 024 Sonoma Franz Valley Rd., 8 mi. NW of Calistoga 609 Comment
  SEINET7042395  Sanicula bipinnatifida A. G. Vestal 1947-5-12 s.n. Sonoma 1 mile east of Occidental. Camp Meeker quadrangle UTM Zone 10, 505500mE, 4251757mN. Comment
  UCD128074  Sanicula crassicaulis J. M. Tucker 1951-6-26 2137 Sonoma at roadside, near summit of range, road from Glen Ellen to Oakville. Comment
  UC1123195  Sanicula laciniata B. O. Schreiber 1938-2-27 2465 Sonoma 2 mi nw of Mark West Springs 121 Comment
  SEINET13945233 Image available Sanicula menziesii Carl B. Wolf 1934-1 5804 Sonoma 0.6 mi inland from Stewarts Point, alt. ca 200 ft 61 Comment
  UC875544  Sanicula tuberosa Alice Eastwood 1918-5-1 6809 Sonoma Mount St. Helena Comment
  CAS-BOT-BC328134  Santolina chamaecyparissus Peter Rubtzoff 1952-5-31 1129 Sonoma Upper Marsh in the west, Pitkin Marsh near Forestville Comment
  RSA799993  Saponaria Peter Rubtzoff 1955-9-10 2127 Sonoma Marshes: Guerneville Marsh. Comment
  CAS-BOT-BC251245  Saponaria Peter Rubtzoff 1967-8-18 5849 Sonoma 6 miles east of Guerneville. Comment
  UCD166314  Saponaria officinalis Peter Rubtzoff 1967-8-18 5849 Sonoma 6 miles east of Guerneville. 18 Comment
  RSA789039  Scandix pecten-veneris Carrie A. Herd 1982-3-30 30 Sonoma Rohnert Park State University, Sonoma next to bicycle path between Rancho Cotate High School and Sonoma State University. Comment
  UCD128126  Scandix pecten-veneris Caitlin Lewis; William Mutch 1993-4-17 14 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
  UCD128133  Scandix pecten-veneris Robert F. Thorne 1965-4-19 34262 Sonoma Cotati, Waters Ranch. 30 Comment
  CAS-BOT-BC283140  Schedonorus arundinaceus G. De Nevers 1982-4-30 1966 Sonoma Philli's Lake, Pepperwood Ranch Comment
  CAS-BOT-BC111398  Schoenoplectus acutus var. occidentalis Peter Rubtzoff 1951-6-9 186 Sonoma Northern half of Lower Pitkin Marsh, near Forestville. Comment
  UCD161272  Schoenoplectus acutus var. occidentalis James A Neilson Jr.; Teresa A. Sholars 1976-5-10 3686 Sonoma Mayacmas Mountains. Eight miles east of U.S. Highway 101, ca. 1 mile north of the Geysers Road; Aidlin-Gouvea Leasehold. (Elevation and exact location estimated by label maker.) Comment
  CAS-BOT-BC111439  Schoenoplectus acutus var. occidentalis Adolph Daniel Edward Elmer 1903-7-1 4940 Sonoma Vallejo Comment
  CAS-BOT-BC111633  Schoenoplectus californicus Peter Rubtzoff 1955-7-30 1995 Sonoma Bennett Mtn. Lake. Comment
  RSA540067  Schoenoplectus californicus Peter Rubtzoff 1966-8-18 5790 Sonoma Laguna de Santa Rosa ca. 1 mile east-southeast of Sebastopol Comment
  RSA227213  Schoenoplectus fluviatilis Peter Rubtzoff 1955-8-7 2033 Sonoma Sonoma County: Guerneville Marsh. Comment
  RSA0020332  Schoenoplectus maritimus Peter Rubtzoff 1961-9-20 4750 Sonoma Bodega Harbor Marsh. Comment
  CAS-BOT-BC366889  Schoenoplectus mucronatus Greg de Nevers 1997-9-29 11097 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Mark West Creek at Leslie Creek junction 400 Comment
  CAS-BOT-BC111798  Schoenoplectus pungens var. badius Peter Rubtzoff 1954-7-26 1558 Sonoma Lower Salmon Creek Marsh. Comment
  CAS-BOT-BC111803  Schoenoplectus pungens var. badius Ella D. Cantelow 1941-4-14 3638 Sonoma Near mouth of Salmon Creek near the Pacific Ocean. Comment
  CAS-BOT-BC111836  Schoenoplectus tabernaemontani Peter Rubtzoff 1955-7-9 1930 Sonoma Forestville Marsh. Comment
  CAS-BOT-BC111840  Schoenoplectus tabernaemontani Peter Rubtzoff 1965-8-16 5608 Sonoma Russian River margin at Forest Hills (5.5 mi E of Guerneville). Comment
  CAS-BOT-BC111116  Scirpus microcarpus Peter Rubtzoff 1955-8-20 2070 Sonoma Bodega Harbor Marsh. Open damp sandy ground bordering the marsh. Comment
  CAS-BOT-BC111106  Scirpus microcarpus Peter Rubtzoff 1958-9-6 3982 Sonoma Laguna de Santa Rosa east of Sebastopol. Comment
  CAS-BOT-BC516413  Scoliopus bigelovii A. A. Heller; H. E. Brown 1902-3-22 5128 Sonoma West of Sebastapol Comment
  SEINET12058066  Scoliopus bigelovii F. H. Utech 1988-3-2 88 -011 Sonoma 3 mi S of Ft. Ross Historic Site & junction with Ft. Ross Rd on CA 1 100 Comment
  SEINET8408407  Scoliopus bigelovii Frank Callahan, Karen Callahan 1989-5-20 Sonoma off Graton Rd. between Graton and Occidental in Purrington Creek area. Comment
  CAS-BOT-BC240035  Scribneria bolanderi John Thomas Howell 1948-4-18 24209 Sonoma Hills east of Agua Caliente Comment
  CAS-BOT-BC311817  Scrophularia californica Peter Rubtzoff 1967-8-28 5870 Sonoma Lower Salmon Creek Marsh. Comment
  CAS-BOT-BC320540  Scrophularia californica Peter Rubtzoff 1953-5-16 1356 Sonoma Vacation Beach, near Guerneville, along Russian River. Comment
  UCR249343  Scrophularia californica Peter Rubtzoff 1958-5-17 3675 Sonoma Laguna de Santa Rosa, east of Cunningham [Rd.] (near Llano Road) 31 Comment
  SEINET10869909 Image available Scutellaria antirrhinoides A. Arthur Heller 1902-6-27 Heller 5786 Sonoma West of Windsor near Russian River Comment
  CAS-BOT-BC371428  Sedella pumila Greg de Nevers 1997-4-16 10941 Sonoma Moon Mountain Road Area burned Sept. 1996 Comment
  OBI59736  Selaginella wallacei S. F. Blake 1927-8-28 10351 Sonoma Near Petrified Forest, near Santa Rosa Comment
  CAS-BOT-BC363429  Senecio aronicoides G. DeNevers 1981-5-9 1084 Sonoma Pepperwood Ranch. Above (S of) Redwood Canyon Comment
  UCD135497  Senecio glomeratus Cathy Hendel 1974-7-10 s.n. Sonoma near Kirkwood House on Pacific Reach Road, Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC363762  Senecio integerrimus F. G. Krauss 1894-5-1 s.n. Sonoma Mountains west of Calistoga Comment
  UC1299457  Senecio minimus Freed W. Hoffman 1946-9-1 1236 Sonoma ocean bank Bodega Park; North Coast Ranges, Bodega Park Comment
  UCD135622  Senecio minimus Charles B. Heiser Jr. 1946-8-17 1831 Sonoma Russian River. Near Duncan Mills. Comment
  JEPS77267  Senecio sylvaticus Robert M. Lloyd 1963-4-24 2404 Sonoma 18.9 mi e State Highway 12 (on road to Oakdale) Comment
  CAS-BOT-BC173675  Senecio vulgaris Peter Rubtzoff 1954-9-4 1723 Sonoma Bodega Head Marsh. Comment
  UCD133859  Senecio vulgaris Frederica Bowcutt 1996-3-24 2077 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. 1 air mile south of Red Mountian. Along Lower Bald Mtn. Trail on first switchback. 441 Comment
  CAS-BOT-BC80320  Sequoia sempervirens Dr. Louise Taber 1960-6-1 s.n. Sonoma Villa Grande, 1 mi. n. of Monte Rio (at locality known as Patterson Point.) Comment
  CAS-BOT-BC80321  Sequoia sempervirens John Thomas Howell 1924-3-22 285 Sonoma Near Camp Meeker Comment
  CAS-BOT-BC80322  Sequoia sempervirens Elsa G. Ruckert 1960-3-12 17 Sonoma 2 1/2 miles up [Triniti] Trinity Road north, from Highway 12 243 Comment
  JEPS79411  Sequoia sempervirens Edward Lee with W. A. Setchell 1936-6-6 2173 Sonoma Bohemian Grove Bohemian Grove (on ground under old trees (the majority), on bark of upper surface of old horizontal section of redwood logs (circle of benches about campfire)) Comment
  NY64476  Sequoia sempervirens R. R. Wilson 1939-7-25 438 Sonoma Ft. Ross, one-half mile from ocean Comment
  UC401314  Sequoia sempervirens W. P. Taylor 1913-6-1 Sonoma Freestone Comment
  UCD135186  Sequoia sempervirens Chris Bowen 1974-6-1 142 Sonoma Near Sorcer's Wood, Unit 30-A Owners' Map, Sea Ranch, near State Highway 1. Comment
  YM-YOSE15455  Sequoia sempervirens Jesse Peter 10/1938 Sonoma 7 Miles South of Santa Rosa in Bennet Valley Comment
  CAS-BOT-BC540823  Sidalcea Peter Rubtzoff; Vanette Bunyan; Nancy Harrison; Marion Weiger 1974-8-5 7814 Sonoma Kenwood Marsh. Comment
  RSA448561  Sidalcea M. K. Curran 1886-6-5 s.n. Sonoma Valley Ford Comment
  UCD116611  Sidalcea diploscypha Botany 102 Students 1993-5-8 239 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
  CAS-BOT-BC205564  Sidalcea malachroides L. R. Abrams 1920-7-3 7604 Sonoma Gualala River near Mendocino-Sonoma Co. Line Comment
  RSA245528  Sidalcea malviflora Larry E. DeBuhr, Gary D. Wallace 1973-5-18 1103 Sonoma Fort Ross State Park. Comment
  RSA87979  Sidalcea malviflora C. L. Hitchcock 1952-6-4 19585 Sonoma 2 miles N. of Ft. Ross. Comment
  UCD116782  Sidalcea malviflora Mary M. Hektner; Cathy Hendel, Sue Dakuzaku 1974-6-20 038 A Sonoma near Bihler Point, Unit 2 Owners' Map, Sea Ranch, near State Highway 1. Comment
  SD88305  Sidalcea malviflora subsp. malviflora Darley F. Howe 1972-5-3 Sonoma Ocean bluff, 2.5 miles north of Jenner. Comment
  RSA41897  Sidalcea malviflora subsp. purpurea Ella Dales Cantelow 1938-5-7 s.n. Sonoma 4 miles N of Fort Ross Comment
  SDSU8176  Sidalcea malviflora subsp. purpurea D. F. Howe 1966-6-2 4260 Sonoma Coast 3 miles north of Bodega Bay Comment
  CAS-BOT-BC213166  Sidalcea oregana subsp. valida C. L. Hitchcock 1952-6-28 19638 Sonoma Kenwood Marsh, about 1/4 mile west of Kenwood Comment
  CAS-BOT-BC213173  Sidalcea oregana subsp. valida Peter Rubtzoff; Vanette Bunyan; Nancy Harrison; Marion Weiger 1974-8-5 7813 Sonoma Kenwood Marsh 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
  UC112916  Silene californica Katharine Brandegee 1908-6-28 Sonoma Glen Ellen Comment
  CAS-BOT-BC389223  Silene laciniata subsp. californica A. T. Graff 1925-5-20 s.n. Sonoma Trospers, Cazadero 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
  UC852864  Silene scouleri subsp. grandis Baker 1938-6-6 9026 Sonoma top of Bodega Rock North Bay Counties, Bodega Bay, top of Bodega Rock Comment
  CAS-BOT-BC75327  Sisymbrium officinale Clare R. Wheeler 1978-3-30 139 Sonoma Pine Mountain Road, 4 miles northeast of Cloverdale. 548 Comment
  HSC13909  Sisyrinchium bellum S. N. Wiermeyer 1962-4-20 22 Sonoma 0.75 mi. E of County Hospital along Chanate Rd. 122 Comment
  POM169048  Sisyrinchium bellum A. A. Heller, H. E. Brown 1902-3-26 5154 Sonoma Santa Rosa Creek. Comment
  UC1585373  Smilacina racemosa R. Raiche, K. Zadnik, and H. Forbes 1989-10-1 UCBG 6 Sonoma 0.3 km e Stewarts Point (on Skaggs Springs-Stewarts Point Rd, nw-facing bank) 50 Comment
  UC844172  Smilacina racemosa Mrs. E. C. Sutliff Aug. 1920 Sonoma near Annapolis Comment
  CAS-BOT-BC166692  Solanum Peter Rubtzoff 1974-9-7 7888 Sonoma Hinebaugh Creek in Rohnert Park, east of Commerce Blvd. at creek crossing. Comment
  UCD126816  Solanum americanum C. B. Heiser; D. Heiser 1946-4-14 s.n. Sonoma Bodega Bay. Comment
  JEPS54471  Solidago elongata Rimo Bacigalupi and L. R. Heckard, and Peter Rubtzoff 1967-8-30 9318 Sonoma Pitkin Marsh 53 Comment
  CAS-BOT-BC365657  Solidago spathulata John Thomas Howell 1945-8-14 21409 Sonoma Perry Marsh Comment
  RSA20120  Solidago spathulata Roxana S. Ferris 1937-8-19 9378 Sonoma 1.5 miles north of Fort Ross on State Highway 1. Comment
  CAS-BOT-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
  UC1613315  Solidago velutina subsp. californica Charles M. Belshaw 1936-9-18 2670 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC173669  Soliva sessilis Peter Rubtzoff 1955-8-7 2036 Sonoma Guerneville Marsh. Comment
  UCR280137  Soliva sessilis Peter Rubtzoff 1971-5-8 6444 Sonoma Eastern foothills of Sonoma Mountains, on Sobre Vista Road, 0.9 miles west of Arnold Drive 137 Comment
  CAS-BOT-BC365967  Soliva sessilis Alice Eastwood 1921-4-24 10377 Sonoma Santa Rosa Comment
  CAS-BOT-BC374526  Sonchus asper John Thomas Howell 1932-9-18 10776 Sonoma Kenwood Marsh Comment
  UCD136184  Sonchus oleraceus Mary M. Hektner 1974-7-25 167 Sonoma Galleon's Reach, Unit 3 Owner's Map, Sea Ranch, near State Highway 1. Comment
  JEPS32223  Sparganium eurycarpum var. eurycarpum F. T. Bioletti Jun 1893 Sonoma Kenwood Comment
  UC1224629  Spartium junceum J. H. Thomas 1964-6-28 10439 Sonoma near Petrified Forest between Calistoga and Santa Rosa Comment
  UCD166481  Spergula arvensis Peter Rubtzoff 1962-5-25 4837 Sonoma Laguna de Santa Rosa area, northeast of Graton, east of Laguna Road. Comment
  UCR275246  Spergularia Peter Rubtzoff 1971-7-9 6597 Sonoma San Francisco Bay Region, 5 miles north of Sears Point 9 Comment
  CAS-BOT-BC390516  Spergularia macrotheca var. macrotheca Alice Eastwood 1915-6-29 4796 Sonoma Bodega Point Comment
  UCD99211  Spergularia macrotheca var. macrotheca P. G. Connors 1991-6-17 160 Sonoma Bodega Marine Laboratory. Comment
  UCD99235  Spergularia marina S. F. Bailey 1951-6-1 s.n. Sonoma Skagg's Island, north of Plack Point cutoff (Highway 48). Comment
  CAS-BOT-BC390727  Spergularia rubra Alice Eastwood; John Thomas Howell 1936-5-19 2497 Sonoma Santa Rosa Comment
  SEINET11933368  Spergularia villosa W. Knight, Knight, I. 1984-1 5085 Sonoma near Gilardi's Resort, near Lakeville along Petaluma River Comment
  CAS-BOT-BC502056  Stachys Peter Rubtzoff 1965-10-10 5658 Sonoma Bodega Head Marsh Comment
  CDA36952  Stachys ajugoides CDFA Staff 1995-5-23 s.n. Sonoma Sugarloaf Ridge State Park; near junction of Meadow, Hillside, and Gray Pine Trails, east of bridge across Sonoma Creek. 0 Comment
  UCD151096  Stachys rigida James A. Neilson Jr. 1973-6-3 2974 Sonoma Mayacmas Mountains. The Geysers. Site I. In Geyser Canyon. (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
  OBI39525  Stachys rigida var. quercetorum F. H. Utech, Walter & Irja Knight, Irja Knight 1984-4-16 84 -081 Sonoma Ca 4.0 mi NNW of Sonoma on Cavedale Rd from jctn with CA hwy 12; ca 0.5 mi N on Cavedale Rd from jctn 152 Comment
  RSA0062827  Stachys stricta Greg de Nevers 1993-8-8 10485 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. 100 Comment
  CAS-BOT-BC251171  Stellaria Peter Rubtzoff 1967-8-28 5866 Sonoma Hillside depression southeast of Lower Salmon Creek Marsh. Comment
  UCD166315  Stellaria Peter Rubtzoff 1967-8-22 5852 Sonoma Hillside depression southeast of Lower Salmon Creek Marsh. Comment
  SD192872  Stellaria littoralis John A. Churchill 1974-5-2 7442756 Sonoma Off Route 1 ca. 1.0 mile north of town. Bodego Bay. Comment
  UCR248886  Stellaria media Peter Rubtzoff 1970-10-29 6418 Sonoma Dune pond near U.C. Bodega Marine Laboratory 13 Comment
  CAS-BOT-BC397766  Stellaria media John H. Thomas 1976-6-15 18310 Sonoma Southern end of Sea Ranch, northwestern part of county, about 7 miles south of Gualala. 30 Comment
  CAS-BOT-BC397773  Stellaria media Peter Rubtzoff 1952-5-31 1116 Sonoma Pitkin Marsh, near Forestville; Thickets south of the Upper Marsh. Comment
  SACT002404  Stipa pulchra M. Wiesendanger 1927-5-5 Sonoma Comment
  UC1492714  Streptanthus barbiger Freed W. Hoffman 1948-6-16 2341 Sonoma Dorr's Cabin North Coast Ranges, upper East Austin Creek Comment
  UC1492715  Streptanthus barbiger Freed W. Hoffman 1948-6-1 2334 Sonoma near Camp Meeker; North Coast Ranges, Dutch Bill Creek Comment
  UC1745585  Streptanthus barbiger Annetta M. Carter 1947-5-30 1843 Sonoma 2 mi. E of Occidental. Comment
  UC708787  Streptanthus barbiger G. L. Stebbins Jr. and California Botanical Society 1946-5-19 3645 Sonoma 3 mi ne Occidental Comment
  UC956502  Streptanthus barbiger Freed W. Hoffman 1947-5-30 1032 Sonoma Layton Mine North Coast Ranges, Main Austin Creek Comment
  UC1292729  Streptanthus brachiatus Freed W. Hoffman 1957-8-22 4207 Sonoma near Contact Mine, E of Pine Flat; on Sonoma-Lake county line 914 Comment
  UCD72522  Streptanthus brachiatus Sharon Strauss 2007-6-28 s. n. Sonoma End of Pine Flat Road at Calpine 'The Geysers.' Up fire road 0.1 mile from parking area at gate. 973 Comment
  UC956618  Streptanthus brachiatus subsp. brachiatus Freed W. Hoffman 1949-7-6 2871 Sonoma e. Pine Flat (ridge near contact Mine, on Sonoma-Lake co. line); North Coast Ranges 914 Comment
  UCR67077  Streptanthus brachiatus subsp. brachiatus L. F. LaPre 1986-7-29 s.n. Sonoma Socrates Mine, c. 9 mi ENE of Geyserville 976 Comment
  UC410837  Streptanthus glandulosus subsp. glandulosus Miss Anna F. Rodda 1929-5-6 Sonoma Geyserville Comment
  UC956574  Streptanthus glandulosus subsp. glandulosus Freed W. Hoffman 1949-6-5 2902 Sonoma along ridge top above Pine Flat (near Contact Mine); North Coast Ranges 960 Comment
  JEPS18148  Streptanthus glandulosus subsp. secundus Rimo Bacigalupi with G. T. Robbins and F. Hoffmann 1956-5-30 5672 Sonoma headwaters of creek near Layton Chromite Mine (along and just above creek-bed); Big Austin Creek, vicinity of The Cedars 266 Comment
  UC985960  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1947-7-29 1063 Sonoma Gabe's Rock North Coast Ranges, Poole Ridge (1 mi nw of Guerneville) Comment
  UC985963 Image available Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1948-6-8 2323 Sonoma near Guerneville (Great Eastern Quicksilver Mine); North Coast Ranges; Great Eastern Quicksilver Mine, near Guerneville, Sonoma Co. Comment
  UC2031713  Streptanthus hesperidis Sherry Adams 2009-6-10 Sonoma About 12 miles ENE from Healdsburg, via Pine Flat Road. About 500' north of the confluence of McDonnell and Ingalls Creeks Modini Ingalls Ecological Preserve of Audubon Canyon Ranch Comment
  UC1492806  Streptanthus morrisonii subsp. morrisonii Freed W. Hoffman 1949-8-19 2995 Sonoma near headwaters of Devil Creek (tributary of East Austin Creek); North Coast Ranges, The Island Comment
  UC1492812  Streptanthus tortuosus Freed W. Hoffman 1949-7-9 2849 Sonoma on road from Healdsburg to Geysers 1.4 mi from Geyser-Cloverdale road (ledge 200 ft above road); North Coast Ranges 624 Comment
  UCD161863  Streptanthus tortuosus James A. Neilson Jr. 1978-6-13 3966 Sonoma Mayacmas Mountains. Lookout tower on Mount St. Helena. (Exact location unknown. Coordinates estimated by label maker.) Comment
  CAS-BOT-BC274041  Stuckenia pectinata Peter Rubtzoff 1970-10-3 6408 Sonoma Dune pond near U.C. Bodega Marine Laboratory. Comment
  CAS-BOT-BC257970  Symphoricarpos Peter Rubtzoff 1970-6-14 6259 Sonoma Marsh on River Road, about 3 miles west of Fulton. Comment
  RSA799982  Symphoricarpos Peter Rubtzoff 1970-6-14 6259 Sonoma On River Road about 3 miles W of Fulton. Comment
  CAS-BOT-BC269629  Symphoricarpos albus var. laevigatus Peter Rubtzoff 1952-6-13 1252 Sonoma North slopes of Fitch Mtn., near Healdsburg Comment
  CAS-BOT-BC269709  Symphoricarpos mollis D. E. Breedlove 1962-6-6 2900 Sonoma Along State Highway 128, 1.5 miles northwest of U. S. Highway 101 at Cloverdale 121 Comment
  UC353794  Symphoricarpos mollis Milo S. Baker Jun 1928 3168 a Sonoma e side Los Guilucos Valley (road to Youngman's) Comment
  CAS-BOT-BC97818  Symphyotrichum chilense Peter Rubtzoff 1951-9-15 763 Sonoma open ground bordering the central part of the Pitkin Marsh Comment
  UC463221  Symphyotrichum spathulatum L. R. Abrams 1907-8-1 Sonoma Sebastapol Comment
  UCD148394  Taraxacum Peter Rubtzoff 1958-4-26 3587 Sonoma Laguna de Santa Rosa, east of Sebastopol. Comment
  CAS-BOT-BC447465  Tellima grandiflora A. A. Heller; H. E. Brown 1902-4-11 s.n. Sonoma Bodega Bay Comment
  OBI9743  Tellima grandiflora Lewis S. Rose 1962-4-18 62023 Sonoma 1 mi NW of Freestone 76 Comment
  CAS-BOT-BC447459  Tellima grandiflora Dorothy Scherer 1997-5-6 100 Sonoma Lower Fort Ross Cr, north side, Fort Ross State Historic Park 7 Comment
  CAS-BOT-BC399885  Thalictrum polycarpum Peter Rubtzoff 1960-6-7 4448 Sonoma Austin Creek Marsh Comment
  UC796642  Thermopsis californica var. californica Ira L. Wiggins 1949-4-30 12058 Sonoma roadside 6.8 mi e Santa Rosa (on road to Calistoga) Comment
  SEINET12165190  Thermopsis macrophylla F. H. Utech 1986-1 86 -116 Sonoma ca 6 mi NE on Cavedale Road from junction with CA 12 600 Comment
  UC1611636  Thermopsis macrophylla var. macrophylla R. Spellenberg, N. Zucker 1994-6-9 12070 Sonoma 7 air mi se of Stewart's Point (2.3 mi s of Skagg's Springs on road to Plantation) Comment
  SD254581  Thysanocarpus curvipes Ann Howald 2015-4-1 3334 Sonoma North Coast Ranges; Stewarts Point-Skaggs Springs Rd, 16.7 miles west of intersection with Rockpile Rd, Wolf Creek drainage (Tombs Creek 7.5'Q) 294 Comment
  CAS-BOT-BC66816  Thysanocarpus curvipes G. DeNevers 1981-4-4 637 Sonoma Pepperwood Ranch. 200 meters north of Pippindale garden. North of Studio. Comment
  SEINET11996226  Thysanocarpus curvipes H. K. Wagnon 1989-1 1852 Sonoma Spring Lake County Park, Santa Rosa 67 Comment
  RSA0057550  Thysanocarpus curvipes subsp. curvipes Milo S. Baker 1898-1 735 Sonoma Hills near Santa Rosa. Comment
  CHSC57363  Thysanocarpus curvipes var. elegans Shelly A. Kirn 1991-3-28 7 Sonoma Ca. 50 yds e of Hwy 101, 0.5 mi n of Cloverdale. 97 Comment
  CAS-BOT-BC67334  Thysanocarpus radians John H. Thomas 1968-4-4 14268 Sonoma 2.8 miles northeast of highway 101 on road to Mark Springs West, along Mark Springs road. Comment
  CAS-BOT-BC447590  Tiarella trifoliata subsp. unifoliata W. W. Carruth 1899-7-1 s.n. Sonoma Geysers Comment
  RSA135474  Tiarella trifoliata var. unifoliata Volney Rattan 1877-6-14 s.n. Sonoma Guerneville. Comment
  CAS-BOT-BC368089  Tolpis barbata Greg de Nevers 1998-5-2 11223 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Northwest of High Hill, southwest of big bay 400 Comment
  RSA801567  Torilis arvensis Peter Rubtzoff 1967-7-2 5844 Sonoma Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC81459  Torreya californica Mary P. Wells 1984-7-21 374 Sonoma Hot Spot (near So. Fork of Gualala River) The Sea Ranch Comment
  UC139953  Torreya californica Alice Eastwood 1900-9-9 Sonoma Mt. St. Helena Comment
  UCD135176  Torreya californica Lalit M. Srivastava 1957-11-1 22 Sonoma At side of State Highway 1, ca. 100 yards south of Fort Ross. 30 Comment
  CAS-BOT-BC169264  Toxicodendron diversilobum D. E. Breedlove 1980-6-28 44801 Sonoma Pepperwood Ranch W of Knights Valley Comment
  UCD112403  Toxicoscordion Christopher Mallek 2008-5-2 HC1- 1 Sonoma Hooker Canyon. 590 Comment
  UCD110462  Toxicoscordion fremontii Christopher Mallek 2008-1 HC1- 1 Sonoma Hooker Canyon. 590 Comment
  CAS-BOT-BC376268  Tribulus terrestris Greg de Nevers 1995-7-4 10758 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road. Franz Creek 487 Comment
  CAS-BOT-BC166758  Trifolium Peter Rubtzoff 1974-4-17 7375 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC173625  Trifolium Peter Rubtzoff 1974-4-17 7374 Sonoma Upper Green Valley Marsh. Comment
  RSA785000  Trifolium Peter Rubtzoff, Nancy Harrison 1978-5-20 9188 Sonoma Cunningham Marsh area, on north side of Blucher Creek Valley. Comment
  CAS-BOT-BC173531  Trifolium Peter Rubtzoff 1974-5-18 7431 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  CAS-BOT-BC173638  Trifolium Peter Rubtzoff 1974-5-19 7442 Sonoma Laguna de Santa Rosa east of Graton, between Occidental and Guerneville roads. Comment
  CAS-BOT-BC210048  Trifolium Peter Rubtzoff 1974-5-18 7432 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  UC1784121  Trifolium Milo S. Baker 1932-4-25 5680 Sonoma at Larkspur Hill, 1 mile east of Bodega Bay, south of highway Comment
Read comments
Jun 12 2012
  UCSC006358  Trifolium Randall Morgan 1996-5-30 2980 Sonoma Bodega Bay, Bodega Marine Lab Comment
  UCSC010634  Trifolium R. Morgan 2014-5-12 5637 c Sonoma Bodega Head Comment
  UC80541  Trifolium albopurpureum var. dichotomum Alice Eastwood 1900-4-7 Sonoma Altruria Comment
  JEPS65855 Image available Trifolium amoenum Joseph P. Tracy 1921-5-13 5548 Sonoma near Petaluma; Northern Coast Ranges 15 Comment
  UC188464  Trifolium barbigerum J. W. Congdon 1880-5-9 Sonoma Petaluma Comment
  UC630839  Trifolium barbigerum P. B. Kennedy June, 1915 Sonoma Del Mar northern part of county Comment
  UCR118959  Trifolium barbigerum var. andrewsii Beecher Crampton 1955-4-5 2410 Sonoma Santa Rosa Area, 2 miles north of Trenton, Mark West Station Road 91 Comment
  UC1129993  Trifolium ciliolatum H. S. Yates 1934-4-22 3849 Sonoma 2 mi s Mark West; Calistoga quad 152 Comment
  UCD35303  Trifolium depauperatum Beecher Crampton 1955-4-5 2408 Sonoma 2 miles west of Fulton, along Woolsey Road. Comment
  RSA54041  Trifolium depauperatum var. amplectens J. T. Howell 1948-4-18 24206 Sonoma Hills east of Agua Caliente. Comment
  UCSB50222  Trifolium fucatum Gray, John 1976-5-1 Sonoma Bluffs on Duncan's Landing peninsula, Sonoma Coast State Beaches; T6N R11W 15 Comment
  UCSB31785  Trifolium hybridum Townsend, J. 1977-5-29 Sonoma West side Russian River about 1 mile south of Guerneville 335 Comment
  UCSC009217  Trifolium hydrophilum Randall Morgan 1998-5-25 2743 Sonoma Viansa Vineyard on west side of Highway 121, about 2 miles south of Highway 116, and approximately 6 miles north of Sears Point Comment
  UC16904  Trifolium incarnatum unknown 1894-5-4 Sonoma Lytton Springs Healdsburg Comment
  CAS-BOT-BC368051  Trifolium microcephalum Greg de Nevers 1998-5-12 11248 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  UCD109166  Trifolium microdon Christine Lee 1993-4-24 90 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. 411 Comment
  UC631272  Trifolium oliganthum P. B. Kennedy 1915-5-31 Sonoma Annapolis Comment
  UCR255722  Trifolium striatum Greg de Nevers 1998-5-12 11245 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  SEINET10829861  Trifolium truncatum A. Arthur Heller, H. E. Brown 1902-4-22 Heller s.n. Sonoma Between Santa Rosa and Agua Caliente. 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
  UCSC006256  Trifolium variegatum Randall Morgan 1995-6-8 2753 Sonoma Petaluma, Field opposite Lincoln School on Wilson Hill Rd. near Petaluma Rd. Comment
  JEPS4154  Trifolium willdenovii W. L. Jepson 1912-4-30 4191 Sonoma Sonoma Valley Comment
  JEPS4354  Trifolium willdenovii W. L. Jepson 1912-4-17 4770 Sonoma Sonoma Valley Comment
  UC496412  Trifolium willdenovii Merle Randall 1930-4-7 Sonoma Redwood Grove Cazadero Comment
  UCD165156  Trifolium wormskioldii Peter Rubtzoff 1974-5-19 7440 Sonoma Laguna de Santa Rosa, east of Graton, between Occidental and Guerneville Roads. Comment
  CAS-BOT-BC451942  Triglochin maritima Peter Rubtzoff 1963-8-17 5224 Sonoma Near Petaluma River just east of Petaluma. Comment
  UC1057434  Trillium albidum G. Thomas Robbins 1937-3-25 3 Sonoma Sonoma Creek Bennett Valley, Sonoma Creek Comment
  SEINET12051398  Trillium albidum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -229 Sonoma W of Glen Ellen & CA 12, ca 0.1 mi W on Sonoma Mt. Road from Bennett Valley Road along Graham Creek 75 Comment
  UCD139904  Trillium chloropetalum Mary M. Hektner 1976-5-13 257 Sonoma Unit 34-A Owners' Map, Sea Ranch, near State Highway 1. 1325 Comment
  SEINET7067236  Triphysaria eriantha A. G. Vestal 1947-5-13 s.n. Sonoma Base of dunes, Bodega Head. Coordinate datum: NAD27. UTM Zone 10, 505861mE, 4250832mN. Comment
  SEINET6987684  Triphysaria eriantha subsp. eriantha Wanda P. Vestal, A. G. Vestal 1947-5-13 s.n. Sonoma Weedy flat next to maritime grassland; cove at Bodega Head. Comment
  JEPS11168  Triphysaria versicolor subsp. faucibarbata W. L. Jepson 1921-5-6 9186 Sonoma just w of summit of road from Calistoga to Petrified Forest along Porter Creek; along Porter Creek 365 Comment
  JEPS11169  Triphysaria versicolor subsp. faucibarbata R. F. Hoover 1939-4-18 4034 Sonoma Occidental Comment
  SFV8312  Triphysaria versicolor subsp. faucibarbata R. R. Martin 1968-5-2 13 Sonoma Dry Creek Road, 5 miles north of Healdsburg. Comment
  UCSB22950  Triphysaria versicolor subsp. faucibarbata McCarthy, Sharon 1965-4-17 Sonoma West of 5th Street opposite Betancourt Street Intersection 25 Comment
  UCD93598  Trisetum canescens P. B. Kennedy 1915-6-1 s.n. Sonoma Northern. Del Mar. Comment
  RSA121006  Tristagma uniflorum Peter H. Raven 1950-4-6 1598 Sonoma Vernal Flats, Santa Rosa to Rincon Ridge. 183 Comment
  CAS-BOT-BC522367  Triteleia hyacinthina H. C. Cantelow 1936-5-3 1326 Sonoma N of Shellville Comment
  UC421767  Triteleia hyacinthina R. L. Pendleton 1906-5-24 356 Sonoma Kenwood Saratoga 144 Comment
  CHSC22981  Triteleia laxa Robert A. Schlising; Lloy Thurman 1962-6-15 2305 Sonoma Dutcher Creek Road, S of Cloverdale and Asti. Comment
  SEINET7067244  Triteleia laxa A. G. Vestal 1947-5-13 s.n. Sonoma About 5 miles north of Fort Ross on Route 1 and east of Ocean Cove. Coordinate datum: NAD27. Comment
  UC421780  Triteleia laxa Milo S. Baker 1898-6-1 590 Sonoma Cemetery Hills Santa Rosa Comment
  CAS-BOT-BC527032  Triteleia laxa Peter Rubtzoff 1952-6-10 1199 Sonoma Northeast slopes of Fitch Mountain, near Healdsburg Comment
  CAS-BOT-BC527970  Triteleia peduncularis J. W. Congdon 1880-5-30 115 Sonoma Santa Rosa Comment
  RSA378054  Triteleia peduncularis J. W. Congdon 1880-5-16 s.n. Sonoma Sting Point? Sebastapol Road. Comment
  CAS-BOT-BC80205  Tsuga heterophylla B. F. Smith 1962-10-24 29 Sonoma 3.5 miles southeast of Gualala 182 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
  RSA39873  Umbellularia californica P. A. Munz 1947-10-9 12209 Sonoma 1.5 miles northeast of Armstrong Redwoods State Park. 91 Comment
  SEINET12090183  Umbellularia californica W. Knight, Knight, I. 1981-1 3963 Sonoma 2.3 mi up Cavedale Road from junction of State Route #12 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-BC403974  Urtica dioica subsp. gracilis Peter Rubtzoff 1954-8-2 1624 Sonoma Duncans Mills Marsh Comment
  CAS-BOT-BC403988  Urtica dioica subsp. gracilis Mary P. Wells 1984-8-9 438 Sonoma Near South Fork of Gualala River, the Hot Spot, The Sea Ranch Comment
  CAS-BOT-BC404221  Urtica dioica subsp. holosericea A. A. Heller 1902-6-24 5759 Sonoma Near Burke's Sanitarium Comment
  CAS-BOT-BC404246  Urtica dioica subsp. holosericea Peter Rubtzoff 1955-8-20 2057 Sonoma Bodega Harbor Marsh Comment
  CAS-BOT-BC404224  Urtica dioica subsp. holosericea Peter Rubtzoff 1958-8-17 3890 Sonoma Laguna de Santa Rosa sourtheast of Graton (near Guerneville Road) Comment
  CAS-BOT-BC404230  Urtica dioica subsp. holosericea Peter Rubtzoff 1964-8-26 5480 Sonoma Marsh 5 miles northeast of Penngrove on Lichan Road 213 Comment
  CAS-BOT-BC193981  Vaccinium cespitosum Milo S. Baker 1940-1-1 9670 Sonoma Perry's Marsh, Gravenstein Highway Comment
  UCD118081  Vaccinium ovatum Mary M. Hektner; Cathy Hendel and Sue Dakuzaku 1974-6-29 094 Sonoma Unit 28 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC135763  Veratrum fimbriatum Alice S. M. McKenzie 1974-10-28 s.n. Sonoma Salt Point State Park - Coast between Russian and Gualala Rivers Comment
  UC558487  Veratrum fimbriatum Elizabeth E. Morse 1936-8-30 Sonoma Gualala River Comment
  JEPS11192  Verbascum blattaria M. E. and E. Van E. Ferguson Jun 8 1919-Jun 10 1919 244 Sonoma near Guerneville Comment
  CAS-BOT-BC157663  Veronica Peter Rubtzoff 1962-5-6 4809 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC164371  Veronica Peter Rubtzoff 1961-6-23 s.n. Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC269309  Veronica Peter Rubtzoff 1971-5-8 6447 Sonoma Pitkin Marsh, near Forestville. Western border of the marsh near end of Templeman Road. Comment
  UCD148319  Veronica americana Peter Rubtzoff 1954-6-6 1461 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC164360  Veronica arvensis Peter Rubtzoff 1959-6-20 4147 Sonoma Willow Creek Marsh. Comment
  RSA94259  Veronica scutellata Peter Rubtzoff 1951-6-16 233 Sonoma Lower part of the upper marsh. Comment
  UCD165332  Vicia Peter Rubtzoff 1973-8-27 7265 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
  SEINET12165816  Vicia benghalensis H. K. Wagnon 1988-1 1751 Sonoma Santa Rosa, Spring Lake Park, just S of Montgomery Drive 73 Comment
  UCD38373  Vicia benghalensis Beecher Crampton 1955-4-4 2393 Sonoma Asti. Comment
  POM17347  Vicia gigantea A. A. Heller, H. E. Brown, A. H. Heller 1902-4-11 8210 Sonoma Bodega Bay Comment
  UCD108964  Vicia sativa subsp. nigra Helen K. Sharsmith 1963-5-25 5490 Sonoma Coleman Valley road east of Occidental. 304 Comment
  RSA247451  Vicia tetrasperma Peter Rubtzoff 1968-7-13 5916 Sonoma Upper Salmon Creek Marsh. Comment
  RSA0065197  Vicia tetrasperma Greg de Nevers 1993-7-4 10471 Sonoma Willow Creek drainage downhill from 18375 Willow Creek Rd. 244 Comment
  CAS-BOT-BC270248  Viola adunca Peter Rubtzoff 1977-11-26 9147 Sonoma On E side of Highway 1 ca 1.5 miles NW of junction of the road to Fort Ross State Historic Park Comment
  CAS-BOT-BC270249  Viola adunca L. R. Abrams 1920-7-3 7619 Sonoma Stewarts Point Comment
  UC1023467  Viola adunca Leo Koch 1939-4-8 496 Sonoma near Plantation; North Bay, Baxman Ranch 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
  UC1763348  Viola douglasii Milo S. Baker 1920-1 5514 Sonoma Kenwood Comment
  UC1742214  Viola floridana Milo S. Baker 1937-1 Sonoma Brookside Garden Comment
  UC35304  Viola glabella J. Burtt Davy 1896-3-13 1653 Sonoma Cazadero Comment
  CAS-BOT-BC536903  Viola glabella Rimo Bacigalupi 1921-7-1 s.n. Sonoma Woods at Monte Rio Comment
  CAS-BOT-BC536962  Viola lobata Mary P. Wells 1984-5-1 204 Sonoma Near Humbug Creek, S of Calistoga Rd, Hood Mountain Range Comment
  UC1763350  Viola pedunculata Milo S. Baker Apr 1899 5540 Sonoma Petaluma road to the coast Comment
  UC575324  Viola purpurea subsp. quercetorum Milo S. Baker 1934-3-25 7573 Sonoma Pine Flat Comment
  UC19359  Viola sempervirens J. Burtt Davy 1896-3-14 1666 Sonoma Cazadero Comment
  UC496478  Viola sempervirens Merle Randall 1930-8-6 Sonoma Cazadero Comment
  CHSC89799  Viscum album C. W. Nichols; W. O. McCartney 1966-1-17 Sonoma In back yard of prop., 1220 Gravenstein Hwy North at Hill Station Rd., 1 mi. n. of Sebastopol. Comment
  RSA201205  Viscum album Stanley Rose 1966-5-8 s.n. Sonoma On apple trees about 1 mile from Sebastopole on Gravenstein Highway North (1090) Comment
  SD70998  Viscum album Stanley Rose 1966-4-3 Sonoma about 1 mile from Sebastopol on Gravenstein Highway North Comment
  CDA36403  Viscum album G. D. Barbe 1968-1-1 859 Sonoma Semi-abandoned residence yard, 7790 Atkinson Road 1 block east of Hwy 122, 1.5 miles north of Sebastopol. 0 Comment
  CDA2768  Viscum album subsp. album C. W. Nichols, W. O. McCartney 1966-1-17 Sonoma In back yard of property, 1220 Gravenstein Highway North at Hill Station Road, 1 mile north of Sebastopol. 0 Comment
  CAS-BOT-BC203130  Vitis californica Lewis S. Rose 1968-6-25 68115 Sonoma Rincon Ridge ne. of Santa Rosa 121 Comment
  SJSU7518  Vitis californica L. S. Rose 1968-6-25 68115 Sonoma Rincon Ridge NE of Santa Rosa 121 Comment
  UC552473  Vitis californica Professor J. T. Barrett 1936-6-19 Sonoma above Guerneville; Russian River Comment
  CAS-BOT-BC203124  Vitis californica Walter Knight; Irja Knight 1963-9-1 134 Sonoma Along 1st stream up from County Dump on Pine Mt Rd NE of Cloverdale Comment
  UCD60314  Vitis californica H. Olmo 1934-9-30 s.n. Sonoma On highway near Hilton, 2 miles E of Korbel on Russian River. Comment
  CAS-BOT-BC199908  Vulpia bromoides Peter Rubtzoff 1960-5-18 4365 Sonoma Bodega Head Marsh Comment
  RSA128468  Vulpia bromoides P. H. Raven 1950-4-6 1552 Sonoma Cotati to Santa Rosa. 30 Comment
  UC1023606  Vulpia bromoides Virginia Bufford 1935-5-17 39 Sonoma Guernewood Park; Russian River Comment
  UC576350  Vulpia bromoides H. S. Yates 1937-6-6 6585 Sonoma