Search Results — 2000 specimen records retrieved (1245 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
  SEINET946043  Abronia latifolia Leo A. Galloway 1968-1 598 Sonoma Doran County Park. Comment
  CAS-BOT-BC332800  Acer macrophyllum Aven Nelson; Ruth A. Nelson 1933-5-15 568 Sonoma Kenwood Comment
  UCD117027  Acer macrophyllum G. F. Hrusa 1995-4-2 12051 Sonoma corner of Franz Valley School Road and Franz Valley Road. 200 Comment
  SEINET12233936  Acer negundo Unknown 1947-1 99 Sonoma 1/2 mi W of Freezeout Creek, across Russian River duncan's Mills Comment
  UCD160830  Achillea millefolium James A. Neilson Jr.; Teresa A. Sholars 1975-6-20 3368 Sonoma Section 10, the Geysers. (Exact location unknown. Elevation and coordinates estimated by label maker.) 388 Comment
  UCD128365  Achillea millefolium Rimy Waraich; Patti Togioka 1993-5-8 236 Sonoma Sugarloaf Ridge State Park; about 50 air miles N of San Francisco, 10 air miles east of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. 365 Comment
  UCR23388  Achlys californica John C. Roos 1957-7-2 6646 Sonoma Miller Ridge Comment
  CAS-BOT-BC400008  Achlys triphylla Greg de Nevers; Susan Charnley 1987-3-28 8129 Sonoma Sea Ranch, along the Gualala River 20 Comment
  CLARK-A1528-2275  Achlys triphylla John C. Roos 1957-7-2 6646 Sonoma Millers Ridge Comment
  JEPS47752  Achlys triphylla subsp. triphylla Alice Louise Griffin 1924-8-7 Sonoma Stewart's Point Comment
  JEPS128216  Acmispon brachycarpus Roger Raiche 2000-5-4 057 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UCD161313  Acmispon brachycarpus James A Neilson Jr.; Teresa A. Sholars 1976-5-10 3714 Sonoma Mayacmas Mountains. Eight miles east of U.S. Highway 101, ca. 1/2 mile north of the Geysers Road; Aidlin-Gouvea Leasehold. (Elevation and exact location estimated by label maker.) Comment
  NY380622  Acmispon gracilis A. A. Heller 1902-6-24 5754 Sonoma Near Burke's Santarium Comment
  UCD104197  Acmispon grandiflorus var. grandiflorus P. B. Kennedy 1919-5-16 s.n. Sonoma Del Mar. Comment
  UCD104332  Acmispon parviflorus R. Tofsrud 1948-5-1 s.n. Sonoma Santa Rosa. Comment
  CAS-BOT-BC65529  Adiantum aleuticum Volney Rattan 1877-1-1 s.n. Sonoma Guerneville Comment
  CAS-BOT-BC65530  Adiantum aleuticum Greg de Nevers 1987-4-25 8163 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Rd., Santa Rosa 400 Comment
  SBBG216  Adiantum aleuticum H. and M. Dearing 1939-5-15 3383 Sonoma N of Fort Ross Comment
  UCD148509  Adiantum aleuticum Peter Rubtzoff 1965-10-10 5657 Sonoma Duncans Mills Marsh. Comment
  UC1063726  Adiantum jordanii E. Armstrong 1934-3-26 909 Sonoma 1 mi nw Camp Meeker; Sebastopol Quadrangle 121 Comment
  UC1193407  Adiantum jordanii P. Zinke 1950-4-25 113 Sonoma Oat Valley; Quadrangle 61A4 182 Comment
  CDA1676  Aegilops triuncialis T. C. Fuller 1960-6-14 4485 Sonoma J. Black Ranch, River Road, ca. 6 miles E/ Cloverdale. 0 Comment
  CAS-BOT-BC202703  Aesculus californica Margot Lowry 1983-5-5 27 Sonoma 1 mi from top of Sonoma Mtn Rd on Sonoma Mtn. 500 Comment
  UCSC005106  Aesculus californica Lulu Waks 2006-10-15 16 Sonoma Bloomfield, Bloomfield Rd. to Sutton St. Private residence on Sutton St. Comment
  CAS-BOT-BC121  Agastache urticifolia var. glaucifolia Amos Arthur Heller 1902-6-28 5792 Sonoma Between Knight's Valley and Mark West Springs Comment
  CAS-BOT-BC183  Agoseris apargioides var. eastwoodiae Alice Eastwood 1900-7-4 s.n. Sonoma Bodega Point Comment
  SD99422  Agoseris grandiflora Christopher Davidson 1977-6-20 6027 Sonoma Dry Creek Road, 8.6 miles west of Geyserville. 89 Comment
  UCD160829  Agoseris grandiflora James A. Neilson Jr.; Teresa A. Sholars 1975-6-20 3273 Sonoma Section 10, the Geysers. (Exact location unknown. Elevation and coordinates estimated by label maker.) 388 Comment
  CAS-BOT-BC15398  Agoseris grandiflora var. grandiflora G. DeNevers 1981-4-30 900 Sonoma Near the Studio. Also in Pippindale Garden, Pepperwood Ranch Comment
  CAS-BOT-BC22783  Agoseris heterophylla John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary P. Wells 1981-5-14 53989 Sonoma Fairfield Osborn Preserve of the nature Conservancy, 4.5 miles NW of Penngrove on the west slope of Sonoma Mountain 457 Comment
  UC1041088  Agoseris hirsuta J. W. Congdon 1880-5-23 Sonoma Petaluma Comment
  UCD128662  Agoseris retrorsa Gerry North 1993-4 53 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. On Bald Mountain Trail 0.5 mile above fork of Bald Mountain and Meadow trails. 457 Comment
  RSA785750  Agrostis Peter Rubtzoff 1967-8-22 5857 Sonoma SE of Lower Salmon Creek Marsh Comment
  RSA785907  Agrostis Peter Rubtzoff 1977-9-4 9130 Sonoma Cunningham Marsh area. Ca 1 air mile WSW of Cunningham Station Comment
  SEINET10717804  Agrostis P. Rubtzoff 1967-8-22 Rubtzoff 5857 Sonoma SE of Lower Salmon Creek Marsh. Comment
  CAS-BOT-BC127550  Agrostis blasdalei Beecher Crampton 1957-7-11 4345 Sonoma Duncan's Point, Sonoma Coast State Park, 4.6 miles north of Salmon Creek Comment
  CAS-BOT-BC127484  Agrostis capillaris Milo S. Baker 1944-7-29 10878 Sonoma Brookside Garden, near Kenwood. Comment
  UC1153786  Agrostis densiflora Beecher Crampton 1957-7-11 4344 Sonoma sandy slopes above bluffs (4.6 mi n of Salmon Creek); Sonoma Coast State Park, Duncan's Point Comment
  UCD51887  Agrostis densiflora Beecher Crampton 1957-7-11 4331 Sonoma Sonoma Coast State Park, 0.9 miles north of Salmon Creek. Comment
  UCD51890  Agrostis densiflora Freed W. Hoffman 1944-5-27 1988 Sonoma Wright's Beach. Comment
  UCD51895  Agrostis densiflora Beecher Crampton 1957-7-22 4377 Sonoma 1.5 miles south of Stewart's Point. Comment
  UCD51992  Agrostis densiflora Beecher Crampton 1957-7-11 4344 Sonoma Duncan's Point, Sonoma Coast State Park, 4.6 miles north Salmon Creek. Comment
  UCD52020  Agrostis densiflora Beecher Crampton 1957-7-11 4351 Sonoma Sonoma Coast State Park, 9 miles north of Salmon Creek and just south of Goat Rock. Comment
  RSA129591  Agrostis exarata H. S. Yates 1937-5-31 6565 Sonoma 1 1/2 miles N.W. of Petrified Forest, Calistoga quadrangle 335 Comment
  UCD36690  Agrostis exarata Beecher Crampton 1955-6-17 2946 Sonoma 4.5 miles S of Cazadero. Comment
  SEINET10790027  Agrostis exarata A. Arthur Heller 1902-6-4 Heller 5641 Sonoma Santa Rosa. Comment
  UCD52223  Agrostis exarata var. pacifica Beecher Crampton 1957-7-22 4380 Sonoma State Hwy. 1, 8.7 miles south of Stewart's Point. Comment
  UCD52239  Agrostis exarata var. pacifica Beecher Crampton 1955-7-15 2915 Sonoma 6 miles west of Forest Hill. Comment
  UCD53052  Agrostis microphylla Beecher Crampton 1966-5-10 7727 Sonoma 6.5 miles north of Sonoma State Hwy. 12, Glen Ellen Station. California Division of Forestry. Comment
  CAS-BOT-BC138855  Agrostis microphylla Dr. Kellogg 1869-1-1 s.n. Sonoma Russian River Valley. Comment
  CAS-BOT-BC139117  Agrostis oregonensis Peter Rubtzoff 1951-8-5 605 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh. Comment
  CAS-BOT-BC138920  Agrostis pallens G. DeNevers 1981-6-6 1483 Sonoma Pepperwood Ranch. South slope of Telegraph Hill. Comment
  CAS-BOT-BC138597  Agrostis stolonifera John Thomas Howell 1947-6-26 23302 Sonoma Cunningham Marsh. Comment
  SD56669  Agrostis stolonifera Darley F. Howe 1963-7-3 3586 Sonoma 20 miles north of junction with #12 on #1. Comment
  UCD53593  Agrostis stolonifera Mary M. Hektner 1974-6-28 80 Sonoma 6 feet north of Breaker Reach, Unit 21 Owners' Map, Sea Ranch, nera State Highway 1. Comment
  CAS-BOT-BC47987  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-BC176185  Aira caryophyllea Peter Rubtzoff 1974-5-25 7459 Sonoma Upper Green Valley Marsh. Comment
  CDA36851  Aira caryophyllea 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
  UCD37349  Aira caryophyllea Beecher Crampton 1959-6-16 5368 Sonoma Sonoma County, 0.2 mile east of Occidental, on Occidental Road. Comment
  CAS-BOT-BC138392  Aira caryophyllea var. capillaris Alice Eastwood 1921-4-24 10364 Sonoma Santa Rosa. 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
  UC1023611  Aira elegantissima Milo S. Baker Apr 1936 234 Sonoma near Youngman's Rd. Comment
  UC1023613  Aira praecox Virginia Bufford 1935-5-19 54 Sonoma Portugese Beach; n end, coming up cliff Comment
  RSA800349  Alisma lanceolatum Peter Rubtzoff 1977-8-12 9114 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  CAS-BOT-BC445332  Alisma lanceolatum Peter Rubtzoff 1959-6-27 4189 Sonoma Laguna de Santa Rosa northeast of Graton, ca. 1/2 mi. north of Guerneville Road crossing. Comment
  CAS-BOT-BC445334  Alisma lanceolatum Peter Rubtzoff 1954-8-2 1627 Sonoma Austin Creek Marsh. Comment
  CAS-BOT-BC182744  Alisma triviale Peter Rubtzoff 1970-8-18 6304 Sonoma Five miles north of Sears Point Comment
  RSA94453  Alisma triviale Peter Rubtzoff 1951-7-28 565 Sonoma Pitkin Marsh, near Forestville; Lower part of the Upper Marsh. Comment
  CDA31282  Allium dichlamydeum D. G. Kelch, Ed Biffin 2010-5-3 10 .197 Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  UCD150551  Allium dichlamydeum Mary M. Hektner; Sue Dakuzaku, Cathy Hendel 1974-6-1 s.n. Sonoma Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC132059  Allium peninsulare var. peninsulare J. W. Congdon 1880-4-1 s.n. Sonoma Petaluma Comment
  CAS-BOT-BC311778  Allium sativum Mary P. Wells 1985-7-1 523 Sonoma Ducker Creek bank, Rincon Valley, Santa Rosa Comment
  CAS-BOT-BC453448  Allotropa virgata Hugh Leech 1966-5-30 s.n. Sonoma Ida Clayton Road summit, at Lake Co. line 807 Comment
  SEINET7220232  Allotropa virgata W. Roderick 1967-6-18 s.n. Sonoma Ida Clayton Rd. NW side of Mt. St. Helena 610 Comment
  UC1585375  Alnus rhombifolia R. Raiche, K. Zadnik, and H. Forbes 1989-1-10 Sonoma 6.9 km w of Soda Springs (e of Stewarts Point, along the Gualala River, on Skaggs Springs-Stewarts Point Road); Gualala River, Skaggs Springs-Stewarts Point Road Comment
  CAS-BOT-BC169368  Alnus rubra John Thomas Howell 1934-3-3 11741 Sonoma near Fort Ross Comment
  UCD165117  Alnus rubra Peter Rubtzoff 1973-10-10 7338 Sonoma Salmon Creek, 0.25 miles south of Freestone. 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
  CAS-BOT-BC257987  Amaranthus Peter Rubtzoff; Nancy Harrison; Ruth Hass; Charles Quibell 1974-8-31 7846 Sonoma Southern area of Kenwood Marsh, ca. 0.5 miles south of Kenwood. Comment
  CAS-BOT-BC258026  Amaranthus Peter Rubtzoff 1973-10-10 7345 Sonoma American Creek area, 2 miles west of Bloomfield. Comment
  UCD128773  Ambrosia chamissonis Michael Fleschner 1965-5-1 s.n. Sonoma University of California Marine Biology Laboratory, Bodega Bay. Comment
  POM141359  Amelanchier pallida A. A. Heller 1903-4-24 6617 Sonoma Woods near Cazadero. Comment
  CAS-BOT-BC135666  Amelanchier utahensis A. A. Heller 1903-4-24 6617 Sonoma Woods near Cazadero Comment
  CAS-BOT-BC135671  Amelanchier utahensis John Thomas Howell; Alice Eastwood 1939-4-2 7378 Sonoma Near Camp Meeker on road to Occidental Comment
  CAS-BOT-BC26900  Amsinckia communis Alice Eastwood 1921-5-8 10448 Sonoma Petaluma Comment
  JEPS30836  Amsinckia lunaris Rimo Bacigalupi and L. R. Heckard 1962-6-19 8592 Sonoma 1/4 mile southeast of Horseshoe Cove, at northeastern base of low hills forming Bodega Head proper. Comment
  UC1073292  Amsinckia spectabilis George B. Rossbach 1955-3-19 454 Sonoma northern and highest hill on Bodega Head 76 Comment
  UC1084547  Amsinckia spectabilis Peter Kamb 1952-5-30 2300 Sonoma n of Bodega Head (dunes between Bodega Harbor and the ocean) 6 Comment
  SD41476  Anagallis arvensis Edith A. Purer 1932-7-21 4052 Sonoma Bodega Bay, sea bluff Comment
  UCD160840  Anagallis arvensis James A. Neilson Jr.; Teresa A. Sholars 1975-6-20 3471 Sonoma Section 10, ca. 1.5 miles west of the Geysers Resort. (Exact location unknown. Elevation and coordinates estimated by label maker.) 396 Comment
  RSA223349  Anagallis arvensis Peter Rubtzoff 1962-8-22 5040 Sonoma Bodega Bay Marsh. Comment
  CAS-BOT-BC45277  Ancistrocarphus filagineus H. L. Mason 1934-4-28 8093 Sonoma Jensen's Ranch, Dohrmann Creek Comment
  CAS-BOT-BC137819  Andropogon glomeratus var. pumilus F. W. Hoffman 1943-6-17 s.n. Sonoma Guerneville. Comment
  CAS-BOT-BC137788  Andropogon virginicus var. virginicus J. Bufford 1936-9-8 s.n. Sonoma Pitkin Marsh, Vine Hill District. Comment
  CAS-BOT-BC391877  Anemone grayi Ella Dales Cantelow 1939-4-10 4233 Sonoma 7 mi. e. of Seaview Comment
  CAS-BOT-BC221431  Angelica hendersonii Walter Knight; Irja Knight 1963-8-13 166 Sonoma Horseshoe Cove Comment
  UC1299243  Angelica tomentosa Freed W. Hoffman September 1947 1388 Sonoma near Guerneville (North Coast Ranges, Quicksilver Mines); North Coast Ranges, Quicksilver Mines Comment
  UCD126249  Angelica tomentosa Frederica Bowcutt 1997-7-20 2204 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NNE of Kenwood, 1 air mile S of Red Mountain. Edge of service roade just SW of group campground. Adobe Canyon near trailhead to Meadows Trail. 396 Comment
  SD41487  Angelica tomentosa var. hendersonii Edith A. Purer 1932-7-21 4046 Sonoma Bodega Bay Comment
  JEPS78467  Anisocarpus madioides Edward Lee 1936-6-7 2204 Sonoma McLaren Trail Bohemian Grove Comment
  CAS-BOT-BC271441  Anisocarpus madioides Mary P. Wells 1981-4-18 s.n. Sonoma Near So. Fork Gualala R., the Sea Ranch Comment
  UCD128896  Anisocarpus madioides Gerry North 1993-3 6 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood, and 18 air miles NW of Napa. Across Adobe Canyon Road deom Goodspeed Trailhead pullout. 228 Comment
  CDA6810  Anthemis cotula T. C. Fuller 1961-10-13 7108 Sonoma Highway 101, 2 miles south of Asti. 0 Comment
  CAS-BOT-BC280663  Anthoxanthum occidentale J. W. Congdon 1880-5-17 s.n. Sonoma Guerneville Comment
  CAS-BOT-BC280669  Anthoxanthum occidentale Peter Rubtzoff 1953-5-17 1377 Sonoma Vacation Beach, near Guerneville Comment
  RSA129297  Anthoxanthum odoratum H. S. Yates 1937-6-6 6583 Sonoma 1 mile E. of Duncan Mills 91 Comment
  RSA648061  Anthoxanthum odoratum Roos 1924-6-20 1524 Sonoma Between Santa Rosa and Sonoma. Comment
  UCD36687  Anthoxanthum odoratum Beecher Crampton 1955-6-17 2940 Sonoma Sonoma County, 0.5 mile north of Guerneville, along Fife Creek. Comment
  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
  HSC21459  Anthriscus caucalis James Faro 1962-4-17 32 Sonoma W end of Bodega Bay, N end Comment
  UCR44914  Antirrhinum vexillocalyculatum L. F. LaPre 1986-6-5 s.n. Sonoma Dorr Place, 4 mi up a private road from Mannings Flats in Austin Creek State Recreation Area, 6 mi north of Cazadero on upper Austin Creek 207 Comment
  UCR44929  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum L. F. LaPre 1986-6-2 s.n. Sonoma Red Slide, serpentine rockslide along upper East Austin Creek, 5 mi north of Cazadero, 3 mi up a private road from Mannings Flats, Austin Creek State Recreation Area 305 Comment
  CDA41217  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Mike Mason 1977-7-11 PDR# 371779 Sonoma River Road near Guerneville. 0 Comment
  POM14617  Antirrhinum virga A. A. Heller 1902-6-26 5775 Sonoma Along Sonoma Creek, at the foot of Mt. Hood Comment
  CAS-BOT-BC237923  Antirrhinum virga Milo S. Baker 1926-1-1 230 a-Local Sonoma Macartney Ranch - Los Gulicos [Guilicos] Val. Comment
  RSA0077989  Apiaceae B. A. Stein 1981-3-7 449 Sonoma Harrison Grade Rd. 243 Comment
  UC1299575  Apocynum androsaemifolium Freed W. Hoffman 1947-7-29 1418 Sonoma near Guerneville Guerneville (Gabe's Rock); North Coast Ranges, Gabe's Rock Comment
  UC629783  Apocynum androsaemifolium Milo S. Baker 1939-5-19 9334 Sonoma Gravenstein Hwy. ca. 1 mi. s. of Sousa's Cornera Comment
  UC921201  Apocynum androsaemifolium Milo S. Baker 1939-5-19 9334 Sonoma Gravenstein Hwy. a mile or two s. of Sousa's Cornera Comment
  CAS-BOT-BC394997  Aquilegia formosa A. A. Heller 1940-5-10 15601 Sonoma near Fort Ross Comment
  JEPS98814  Arctostaphylos James B. Roof, Walter Knight, Irja Knight 1967-3-19 Sonoma near Pitkin Marsh (Jones Christmas Tree Farm, near Vine Hill Road) Comment
  RSA629210  Arctostaphylos Jon E. Keeley 1993-9-11 24790 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  RSA629227  Arctostaphylos Jon E. Keeley 1993-9-11 24772 Sonoma On south side of North Peak, in saddle between North and South peaks, Mt. St. Helena. 1160 Comment
  CAS-BOT-BC25319  Arctostaphylos bakeri John Thomas Howell 1933-4-2 10958 Sonoma Serpentine ridge, 2 miles E of Occidental Comment
  CAS-BOT-BC27176  Arctostaphylos bakeri John Thomas Howell 1933-4-2 10955 Sonoma 2 miles E of Occidental Comment
  CHSC39445  Arctostaphylos bakeri B. A. Stein 1981-3-7 447 Sonoma Harrison Grade Rd, east of Occidental. 243 Comment
  HSC7753  Arctostaphylos bakeri Freed W. Hoffman Apr 1948 2753 Sonoma Dutch Bill Creek near Camp Meeker Comment
  OBI14769  Arctostaphylos bakeri Robert F. Hoover 1968-2-23 10896 Sonoma Harrison Grade road near summit Comment
  UC1120876  Arctostaphylos bakeri C. M. Belshaw 1936-3-7 1562 A Sonoma 1/2 mi nw Trenton; Sebastopol Quadrangle Comment
  UC1281479  Arctostaphylos bakeri H. E. McMinn 1936-4-5 4409 Sonoma two mi n Occidental Comment
  UC727008  Arctostaphylos bakeri A. A. Heller 1942-3-15 16396 Sonoma 2 mi e Occidental (near summit of grade, from type station); Harrison Grade Comment
  UC876383  Arctostaphylos bakeri Lewis S. Rose 1934-2-22 34032 Sonoma 2 mi e Occidental (type locality) Comment
  RSA622707  Arctostaphylos bakeri subsp. bakeri Jon E. Keeley, Melanie Baer-Keeley 1993-9-10 24695 Sonoma Along Bohemian Highway, 3.3 km north of Camp Meeker, between Occidental and Monte Rio. 90 Comment
  RSA252145  Arctostaphylos bakeri subsp. bakeri G. D. Wallace 1974-12-23 1348 Sonoma NE of Occidental on Grafton Road, 2 mile or so from Occidental. 152 Comment
  CAS-BOT-BC23973  Arctostaphylos canescens subsp. canescens Walter Knight; Irja Knight 1964-1-17 520 Sonoma Hooker Canyon, Cloverdale Rd. Comment
Read comments
Apr 11 2019
  UC1388358  Arctostaphylos canescens subsp. canescens Freed W. Hoffman 1947-3-12 753 Sonoma Trinity road ne Kenwood (w slope of range); North Coast Ranges, Napa Range Comment
  CAS-BOT-BC23898  Arctostaphylos canescens subsp. sonomensis John Thomas Howell 1933-4-2 10945 Sonoma Rincon Ridge, near Santa Rosa Comment
  UC1120075  Arctostaphylos canescens subsp. sonomensis A. E. Wieslander 1939-3-18 877 Sonoma s edge Rincon hills; Santa Rosa Quadrangle Comment
  UC1309672  Arctostaphylos canescens subsp. sonomensis C. M. Belshaw 1936-3-8 1576 Sonoma 3/4 mi from County Farm; Santa Rosa Quadrangle, Rincon Ridge 152 Comment
  UC549707  Arctostaphylos canescens subsp. sonomensis J. E. Adams 1935-3-1 1022 Sonoma e Sta. Rosa; Rincon Ridge Comment
  UC876538  Arctostaphylos canescens subsp. sonomensis Lewis S. Rose 1940-2-12 40006 Sonoma 2 mi e Santa Rosa (type locality); Rincon Ridge 60 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-BC24981  Arctostaphylos densiflora Catherine Best 1986-2-9 1162 Sonoma On Stoetz Lane about 3 miles NE of Occidental. Comment
  CAS-BOT-BC24992  Arctostaphylos densiflora Milo S. Baker 1929-6-1 3572 Sonoma Near Vine Hill Schoolhouse. Comment
  CAS-BOT-BC25012  Arctostaphylos densiflora J. Sigg; Elizabeth McClintock; Walter Knight; Irja Knight 1981-3-11 4083 Sonoma Originally from Vine Hill area near Sebastopol. Comment
  JEPS98818  Arctostaphylos densiflora James Roof and Walter Knight 1967-3-20 Sonoma a few mi W of Santa Rosa (Clark's Driveway, Box 5980 on Guerneville Road, near int. with Laguna Road) Comment
  OBI14750  Arctostaphylos densiflora H. E. McMinn 1936-4-5 4412 Sonoma Just W of Vine HIll School, 16 mi W of Santa Rosa Comment
  UCD50803  Arctostaphylos densiflora Chas. Lamoureux; Lalit Srivastava and Roman Gankin 1947-11-1 248 Sonoma On Vine Hill School Road, 0.1 mile east of juncture with Vine Hill Road. Comment
  SEINET11987220  Arctostaphylos densiflora W. Knight, Knight, I. 1980-1 3858 Sonoma California Native Plant Society preserve on Vine Hill School Rd, near Graton Comment
  SEINET11991012  Arctostaphylos densiflora W. Knight, Knight, I.; Knight, T. 1983-1 4766 Sonoma California Native Plant Society manzanita preserve on Vine Hill School Rd Comment
  UCD158721  Arctostaphylos glandulosa Teresa A. Sholars 1976-9-9 s.n. Sonoma Mayacmas Mtns. Shell US Geothermal # 2. Ca. 4 mi southeast of the junction of Socrates Mine Rd. and Pine Flat Rd. Elevation estimated by label maker. [note by label-maker: 4 mi southeast would take location out of Sonoma County and out of the geothermal area, unless is road miles]. 975 Comment
  SEINET11977772  Arctostaphylos glandulosa C. M. Belshaw 1936-1 1572 Sonoma on Rincon Ridge 1.5 mi N of County Farm 267 Comment
  SEINET11998613  Arctostaphylos glandulosa W. Knight, Knight, I.; Wells, P. V. 1985-1 6344 Sonoma N side Guerneville Hwy between Laguna & Vine Hill roads Comment
  UCD51109  Arctostaphylos glandulosa Roman Gankin; W. R. Hildreth 1967-10-4 1077 Sonoma Near Rocky Mountain, north of Guerneville. Comment
  LA42169  Arctostaphylos glandulosa subsp. cushingiana John Thomas Howell; 1933-4-2 10941 Sonoma Rincon Ridge, near Santa Rosa 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
  JEPS81244  Arctostaphylos glandulosa subsp. glandulosa Edward Lee with W. A. Setchell 1936-6-8 2210 Sonoma North Ridge Fire Trail near junction of Trail 3A; Bohemian Grove Comment
  CAS-BOT-BC39107  Arctostaphylos hispidula Walter Knight; Irja Knight; Stephen W. Edwards 1985-1-27 5174 Sonoma 7.7 miles from west end of Sonoma Lake bridge on Rockpile Road. 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
  SEINET11993006  Arctostaphylos hispidula Unknown 1984-1 RR 40044 Sonoma on Rockpile Road ca 9.1 mi N of origin of Skaggs Springs-Stewarts Point Road 503 Comment
  CAS-BOT-BC24407  Arctostaphylos manzanita Roger Raiche; Steve Edwards 1983-6-9 100 Sonoma The Cedars, w. of ridge on Twitchell property near Cazadero. 274 Comment
  UCD160866  Arctostaphylos manzanita James A. Neilson Jr.; Teresa A. Sholars 1975-6-27 3304 Sonoma Mayacmas Mountains, Caldwell Pines, ca. 3 1/2 miles west of Glenbrook and Bottle Rock Road, northeast Sonoma County. (Elevation and coordinates estimated by label maker.) 975 Comment
  UCR278802  Arctostaphylos manzanita Ann Howald 2016-1-21 3553 Sonoma North Coast Ranges, Annapolis Ridge, c. 0.2 mile north of Annapolis Rd and 0.15 mile west of Soda Springs Rd. 236 Comment
  RSA633056  Arctostaphylos manzanita Jon E. Keeley 1996-6-22 27490 Sonoma Stewarts Road ca. 3 km west of Forestville. 120 Comment
Read comments
Feb 21 2013
  SEINET11990961  Arctostaphylos manzanita Unknown 1983-1 30499 D Sonoma nr entrance to public landfill site, road to Annapolis, 1.2 mi E of intersection to Soda Springs Rd Comment
  SEINET11990970  Arctostaphylos manzanita Unknown 1983-1 30491 I Sonoma near confluence of Thompson Creek & East Austin Creek, East Austin Creek St. Rec. Area 91 Comment
  SEINET11990979  Arctostaphylos manzanita Unknown 1983-1 30476 Sonoma near Redwood Lake, East Austin Creek State Recreation Area 366 Comment
  UCD51915  Arctostaphylos manzanita C. M. Belshaw 1936-3-7 1561 Sonoma 1/2 mile NW of Trenton. 60 Comment
  SEINET11991013  Arctostaphylos manzanita subsp. bakeri W. Knight, Knight, I.; Knight, T. 1983-1 4767 Sonoma intersection of Occidental Rd & Fascindini Lane near Occidental Comment
  CAS-BOT-BC38907  Arctostaphylos manzanita subsp. elegans Alice Eastwood 1922-5-5 11305 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC38682  Arctostaphylos manzanita subsp. manzanita Catherine Best 1981-2-15 s.n. Sonoma Trinity Mt. Road between Sonoma and Napa Valleys Comment
  CAS-BOT-BC38691  Arctostaphylos manzanita subsp. manzanita Peter Rubtzoff 1951-9-15 744 Sonoma Dry, open area separating the western branch of the Upper Marsh from the eastern. Comment
  CAS-BOT-BC38711  Arctostaphylos manzanita subsp. manzanita H. F. Copeland 1933-3-18 A 9 Sonoma Residence of M. S. Batker, at west base of Mt. Hood. Comment
  CAS-BOT-BC38723  Arctostaphylos manzanita subsp. manzanita H. F. Copeland 1932-3-18 A 4 Sonoma Rincon Ridge, north of Santa Rosa Comment
  UC1121478  Arctostaphylos manzanita subsp. manzanita A. E. Wieslander 1938-10-29 834 Sonoma Vine Hill Sebastopol Quadrangle Comment
  UC1193143  Arctostaphylos manzanita subsp. manzanita G. W. Tourtillott 1950-5-5 15 Sonoma 1/2 mi e Hale Ranch; Quad 60B3, Sulphur Creek 243 Comment
  UC1220421  Arctostaphylos manzanita subsp. manzanita B. F. Smith 1962-11-30 32 Sonoma 1/2 mi e summit; Quad 60D2, Mt. St. Helena 1219 Comment
  UC1388362  Arctostaphylos manzanita subsp. manzanita Freed W. Hoffman 1947-2-28 766 Sonoma near Healdsburg (creek is a branch of Mill Creek); North Coast Ranges, Wild Hog Ridge, headwaters of Palmer Cre Comment
  RSA96696  Arctostaphylos manzanita subsp. manzanita P. C. Everett, E. K. Balls, George B. Everett 1954-10-20 20377 Sonoma 4 mi. s.w. of Lake-Sonoma Co. line, n.w. to w. slope Mt. St. Helena. 640 Comment
  UC549421  Arctostaphylos nummularia J. E. Adams 1934-3-28 741 Sonoma s McNamees Store Comment
  CAS-BOT-BC47333  Arctostaphylos stanfordiana Walter Knight; Irja Knight 1964-1-17 517 Sonoma Upper Hooker Canyon. Cloverdale Rd. Comment
  JEPS78746  Arctostaphylos stanfordiana Edward Lee 1936-5-3 2017 Sonoma 13.7 mi (by road) from Santa Rosa (Sonoma-Santa Rosa Road) Comment
  UCD53847  Arctostaphylos stanfordiana Roman Gankin 1966-3-3 686 Sonoma Ridge south of Hooker Canyon at a point directly opposite canyon from Cavedale Road; 3.1 miles east of junction with State Highway 12. Comment
  JEPS95228  Arctostaphylos stanfordiana subsp. decumbens Stephen W. Edwards 1990-12-10 Sonoma Rincon Ridge, summit Comment
  POM181015  Arctostaphylos stanfordiana subsp. stanfordiana J. T. Howell 1931-3-14 5771 Sonoma Vine Hill District Comment
  SBBG28529  Arctostaphylos stanfordiana subsp. stanfordiana H. F. Copeland 1933-3-18 A 11 Sonoma Spring Mtn Rd, ca. 8 mjiles E of Santa Rosa Comment
  SEINET12524556 Image available Arctostaphylos stanfordiana subsp. stanfordiana C. M. Belshaw 1936-1 1565 Sonoma Vine hill. Sebastopol quadrangle. T. 7N. R. 9W. Comment
  UCD52206  Arctostaphylos viscida Freed W. Hoffman 1947-2-28 762 Sonoma Near Guerneville, Sonoma County. Comment
  UC1220419  Arctostaphylos viscida subsp. pulchella J. A. Delapp 1962-3-10 62 Sonoma 4.1 mi ne Cazadero; Quad 61D-$, Gilliam Creek 167 Comment
Read comments
Mar 7 2016
  UCD56480  Aristida oligantha R. Tofsrud 1947-8-1 255 Sonoma near Hicrott. Comment
  POM165727  Aristolochia californica A. A. Heller, H. E. Brown 1902-3-12 s.n. Sonoma Sonoma Creek, eastern base of Mt. Hood. Comment
  UC543758  Aristolochia californica M. Stason and L. Roush 1926-2-28 Sonoma Hoods Peak Comment
  JEPS35855  Arnica discoidea M. E. and E. Van E. Ferguson Jun 8 1919-Jun 10 1919 Sonoma between Guerneville and Monte Rio Russian River Comment
  CAS-BOT-BC82562  Arnica discoidea Peter Rubtzoff 1951-8-25 669 Sonoma Forested hills southeast of Guerneville Comment
  RSA785845  Arrhenatherum elatius Peter Rubtzoff 1979-8-5 9302 Sonoma Freestone Marsh area. Along Bohemian Highway at Freestone Flat Road junction, SE of Freestone marsh. Comment
  CAS-BOT-BC173847  Artemisia Peter Rubtzoff 1951-9-3 731 Sonoma Vacation Beach, near Guerneville. Comment
  CAS-BOT-BC499175  Artemisia douglasiana Peter Rubtzoff 1986-9-28 9752 Sonoma Russian River at Forest Hills, 5.5 mi E of Guerneville Comment
  RSA796171  Artemisia douglasiana Peter Rubtzoff 1954-9-6 1743 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC97234  Artemisia suksdorfii J. Clausen 1939-7-20 1715 (Tr. 1330) Sonoma along road just north of Jenner, towards Fort Ross Comment
  UC628481  Artemisia suksdorfii J. Clausen 1939-7-20 1715 Sonoma along road just n Jenner (towards Fort Ross) Comment
  CAS-BOT-BC400600  Asarum caudatum Volney Rattan 1877-5-16 s.n. Sonoma Guerneville Comment
  UC543764  Asarum caudatum Herbert L. Mason 1926-3-21 2778 Sonoma Middleton Road - Mt. St Helena; Lake Co. Comment
  POM16009  Astragalus gambelianus F. T. Bioletti 1893-06 s.n. Sonoma Hoods Peak Comment
  CAS-BOT-BC66006  Athyrium filix-femina Mary P. Wells 1984-7-21 387 Sonoma The Hot Spot (by the Gualala River South Fork) The Sea Ranch Comment
  CAS-BOT-BC66149  Athyrium filix-femina var. cyclosorum Peter Rubtzoff 1952-5-31 1119 Sonoma Northern half of Lower Marsh Comment
  UC903146  Athyrium filix-femina var. cyclosorum Ethel Crum 1930-7-27 828 Sonoma 1 mi n Fort Ross; North Coast Ranges Comment
  CAS-BOT-BC66151  Athyrium filix-femina var. cyclosorum Peter Rubtzoff 1959-9-12 4256 Sonoma Willow Creek Marsh Comment
  CAS-BOT-BC17428  Athysanus pusillus A. A. Heller; H. E. Brown 1902-3-24 5142 Sonoma Hills East of Santa Rosa. Comment
  UCSC000219  Atriplex prostrata E. L. Greene 1888-9-1 s.n. Sonoma Petaluma Comment
  SEINET10882908  Avena P. Rubtzoff 1972-5-25 Rubtzoff 6766 Sonoma Laguna, Chileno Valley. Comment
  UCD56194  Avena barbata Mary M. Hektner 1975-8-10 218 Sonoma Near State Highway 1. Sea Ranch. Near Sea Ranch Association Office. Comment
  CAS-BOT-BC145729  Avena sativa David L. Morgan 1956-5-17 s.n. Sonoma Watmaugh Road, 0.5 mile west of junction of Arnold Drive. Comment
  CAS-BOT-BC68340  Azolla filiculoides Peter Rubtzoff 1961-8-6 4673 Sonoma Americano Creek 1/2 mi. east of Valley Ford Comment
  CAS-BOT-BC154152  Baccharis douglasii Peter Rubtzoff 1955-9-24 2148 Sonoma Duncans Mills Marsh. Comment
  CAS-BOT-BC98650  Baccharis douglasii Catherine Best 1983-10-12 904 Sonoma Growing along the creek near Occidental Road at the north edge of Occidental Comment
  JEPS40663  Baccharis glutinosa W. L. Jepson 1921-9-12 9481 Sonoma Alexander Valley 45 Comment
  UCD148379  Baccharis glutinosa Peter Rubtzoff 1955-9-24 2147 Sonoma Duncans Mills Marsh. Comment
  RSA796694  Barbarea Peter Rubtzoff 1989-3-13 9981 Sonoma Near Russian River, ca. 6 mi east of Guerneville, at 9850 River Road. Comment
  UCD163789  Barbarea Peter Rubtzoff 1989-3-13 9981 Sonoma Near Russian River, ca. 6 miles east of Guerneville, at 9850 River Road. Comment
  CAS-BOT-BC145831  Beckmannia syzigachne A. A. Heller 1902-6-27 5780 Sonoma West of Windsor near Russian River. Comment
  SEINET10514173  Beckmannia syzigachne A. Arthur Heller 1902-6-7 Heller 5650 Sonoma Bennett Valley, southeast of Santa Rosa. Comment
  OBI35842  Bellis perennis David J. Keil 1983-6-29 17206 Sonoma Ca 10 mi SE of Ft Ross along Hwy 1 Comment
  RSA227207  Berula erecta Peter Rubtzoff 1955-7-24 1986 Sonoma Forestville Marsh. Comment
  CAS-BOT-BC290706  Bidens frondosa Peter Rubtzoff 1962-9-16 5090 Sonoma Vacation Beach, 1.5 miles below Guerneville along Russian River. Comment
  CAS-BOT-BC290722  Bidens frondosa Peter Rubtzoff 1961-8-24 4712 Sonoma Vacation Beach, 2 miles below Guerneville along Russian River. Comment
  CAS-BOT-BC290559  Bidens frondosa Peter Rubtzoff 1958-8-17 3891 Sonoma Laguna de Santa Rosa, northeast of Graton (0.5 mi. north of Guerneville Road). Comment
  UCD129568  Bidens frondosa F. C. Crawford 1963-9-16 101 Sonoma Petaluma, Brentwood. Apricot Way. Comment
  UCR249043  Bidens laevis Peter Rubtzoff 1963-10-30 5300 Sonoma Bodega Head Marsh 2 Comment
  CAS-BOT-BC290563  Bidens laevis Peter Rubtzoff 1963-11-11 5301 Sonoma Pitkin Marsh, near Forestville. Comment
  SEINET7249073  Bidens laevis Peter Rubtzoff 1962-1 5130 Sonoma Pitkin Marsh, near Forestville. Comment
  CAS-BOT-BC100249  Blennosperma bakeri Milo S. Baker 1952-3-20 12393 Sonoma Western outskirts of Sonoma on 5th St. between Bettencourt and McArthur Comment
  JEPS86326  Blennosperma bakeri Jack and Betty Guggolz 1988-3-15 902 Sonoma n of, w of an extension of Hargrave Road Scenic Road Comment
  UC1428029  Blennosperma bakeri Charles F. Quibell with James R. Estes 1974-4-3 1159 Sonoma sw of, near intersection of Llano and Todd Roads Santa Rosa Comment
  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
  RSA0000973  Blennosperma bakeri Milo S. Baker 1946-4-2 11307 Sonoma Western outskirts of Sonoma in 'hog wallow' about 0.25 mi south of Napa Street in field on east side of street. Comment
  UC30585  Blennosperma nanum var. nanum F. T. Bioletti 1893-4-1 Sonoma Kenwood Comment
  CAS-BOT-BC105962  Blennosperma nanum var. nanum G. H. Mallory 1920-3-29 s.n. Sonoma Hills at east end of Sonoma Ave., Santa Rosa Comment
  UC1299661  Boechera breweri Freed W. Hoffman 1946-8-14 592 Sonoma Rocky Mountain North Coast Ranges Comment
  RSA790865  Boisduvalia Peter Rubtzoff, Nancy Harrison, Ruth Hass 1974-8-31 7850 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC154955  Boisduvalia Peter Rubtzoff 1971-6-30 6581 Sonoma Eastern foothills of Sonoma Mtns. On Sobre Vista Road, 0.9 mi. W of Arnold Drive Comment
  RSA790899  Boisduvalia Peter Rubtzoff 1974-5-26 7491 Sonoma 1.4 mi from Hwy 116 and 0.6 mi from Llano Road. Comment
  CAS-BOT-BC154965  Boisduvalia densiflora Peter Rubtzoff 1960-9-14 4544 Sonoma Laguna de Santa Rosa, E of Graton (btwn. Occidental & Guerneville Roads) Comment
  CAS-BOT-BC154974  Boisduvalia densiflora Peter Rubtzoff 1957-8-17 3519 Sonoma Occidental Marsh Comment
  RSA80693  Boisduvalia densiflora F. W. Peirson 1925-8-8 6338 Sonoma Roadside 6 miles south of Santa Rosa Comment
  CAS-BOT-BC154972  Boisduvalia glabella Peter Rubtzoff 1963-7-27 5212 Sonoma Laguna de Santa Rosa E of Graton. Comment
  CAS-BOT-BC31363  Bolboschoenus maritimus Gregory Clark de Nevers; S. Castagnoli 1981-8-2 1791 Sonoma On sand bar in Mark West Creek, at confluence with Leslie Creek. Comment
  CAS-BOT-BC500694  Bolboschoenus maritimus Peter Rubtzoff 1954-7-26 1557 Sonoma Lower Salmon Creek Marsh Comment
  UCR250386  Bolboschoenus maritimus subsp. paludosus Peter Rubtzoff 1955-8-20 2083 Sonoma Bodega Harbor Marsh 0 Comment
  CAS-BOT-BC290549  Bolboschoenus maritimus subsp. paludosus Peter Rubtzoff 1963-8-17 5221 Sonoma Salt marsh near Petaluma River just east of Petaluma. Comment
  UC420422  Boykinia occidentalis Milo S. Baker 1898-1 Sonoma Santa Rosa Canyon Comment
  CAS-BOT-BC145449  Brachypodium distachyon Mary P. Wells 1984-5-5 329 Sonoma Santa Rosa. Friends House, Rincon Valley. Comment
  HREC396 Image available Brachypodium distachyon Kerry L. Heise 1997-5-8 2025 Sonoma IHRMP study site #6 Asti. 1 1/2 mi south of Asti. Comment
  JEPS87102  Brachypodium pinnatum Peter G. Connors 1991-6-5 127 Sonoma just n of town of Bodega Bay (Salmon Creek Dunes, in State Park); Salmon Creek Dunes, State Park Comment
  SEINET242411  Brassica napus Joe Ditomaso 2001-5-9 s.n. Sonoma Bodega Bay Marine Lab, across from entrance to marine facility, along roadside. Comment
  HSC6588  Brassica rapa F. Demostene 1966-4-1 9 Sonoma 2 mi. E of Healdsburg Comment
  CAS-BOT-BC182742  Brassicaceae Peter Rubtzoff 1959-6-20 4187 Sonoma Willow Creek Marsh Comment
  CHSC8187  Briza maxima K. Henegar 1969-5-10 42 Sonoma Near Salmon Creek, 1/2 m n of Bodega Bay. Comment
  JEPS45817  Briza maxima Eleanor Armstrong 1932-5-16 154 Sonoma 2 mi southeast of Camp Meeker on ridge 106 Comment
  RSA126876  Briza maxima H. S. Yates 1936-5-16 5606 Sonoma 1 mile S.E. of Forestville 30 Comment
  SJSU810  Briza maxima A. W. Jacobs 1943-5-15 Sonoma near Forestville Comment
Read comments
Sep 17 2008
  UCD57364  Briza maxima Beecher Crampton 1959-6-16 5371 Sonoma 0.2 miles E of Occidental. Comment
  UCR143595  Briza maxima G. F. Pratt, C. Pierce 2003-5-15 s.n. Sonoma North Coast, Salt Point State Park 122 Comment
  SEINET10514367  Briza maxima Ira L. Wiggins, Roxana S. Ferris 1943-4-30 Wiggins 10165 Sonoma Roadside 1/2 mile south of Asti, along U.S. Highway 101. Comment
  UCD19912  Briza maxima C. H. Lamoureux; J. M. Tucker, J. McCaskill, and S. Armstrong 1957-4-7 1193 Sonoma 1 mile north of junction of Hwy 12 and Calistoga Rd., near Santa Rosa. 15 Comment
  UC1023569  Briza minor Virginia Bufford 1936-5-1 147 Sonoma w Sebastopol (top of hill); O'Farrell Hill Comment
  SEINET11687426  Briza minor F. H. Utech 1986-1 86 -096 Sonoma ca 1.5 mi NE on Cavedale Road from junction with CA 12 100 Comment
  UCD151072  Brodiaea californica James A. Neilson Jr. 1974-6-1 2884 Sonoma Mayacmas Mountains, Geyser Rock area, ca. 3 1/2 mi. west of Whispering Pines, northeast Sonoma County. (Elevation estimated by label maker using Google Earth.) 1027 Comment
  UCD161243  Brodiaea elegans subsp. elegans James A Neilson Jr.; Teresa A. Sholars 1976-5-10 3707 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-BC484387  Brodiaea elegans subsp. elegans James L. Reveal 1987-6-7 6413 Sonoma Along Cavedale Road, about 1.5 miles south of Trinity Road, about 13 airline miles southeast of Santa Rosa 579 Comment
  CAS-BOT-BC484398  Brodiaea elegans subsp. elegans Peter Rubtzoff 1969-6-15 6086 A Sonoma Laguna de Santa Rosa 1 mile east/southeast of Sebastopol Comment
  CAS-BOT-BC486502  Brodiaea stellaris Milo S. Baker 1923-7-26 1278 Sonoma Lamb Ranch near head of South Fork of Yager Comment
  CAS-BOT-BC486526  Brodiaea stellaris Roxana S. Ferris; Laura Lorraine 1961-6-15 13574 Sonoma Junction of Occidental Road with Facendini Lane Comment
  CAS-BOT-BC486470  Brodiaea terrestris subsp. terrestris Catherine Best 1983-6-10 s.n. Sonoma Salt Point, on bluff above the ocean Comment
  UCD57972  Bromus carinatus P. B. Kennedy 1915-6-1 s.n. Sonoma Northern Sonoma County. Del Mar. Comment
  CAS-BOT-BC149051  Bromus carinatus var. carinatus Peter Rubtzoff 1952-5-31 1100 Sonoma Pitkin Marsh, near Forestville. Area separating the western branch of the Upper Marsh from the eastern. Comment
  CAS-BOT-BC149100  Bromus carinatus var. carinatus Peter Rubtzoff 1952-5-31 1100 Sonoma Pitkin Marsh, near Forestville. Area separating the western branch of the Uppe Marsh from the eastern. Comment
  UC37621  Bromus carinatus var. carinatus H. N. Bolander 1864-1 3986 Sonoma Mark West Creek Comment
  CAS-BOT-BC148785  Bromus carinatus var. marginatus A. A. Heller 1902-4-9 5247 Sonoma In a railroad cut three miles south of Healdsburg. Comment
  CAS-BOT-BC155958  Bromus commutatus Peter Rubtzoff 1962-5-25 4844 Sonoma Atascadero Creek Marsh. Comment
  RSA0023113  Bromus commutatus Peter Rubtzoff 1976-6-18 8652 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC155660  Bromus diandrus G. DeNevers 1981-5-15 1163 Sonoma Pepperwood Ranch. North arm of Garrison Canyon. Comment
  UCD58826  Bromus hordeaceus Beecher Crampton 1957-7-11 4304 Sonoma Along State Hwy. 1, 1.4 miles SE of Bodega Bay. Comment
  CAS-BOT-BC162392  Bromus laevipes G. DeNevers 1981-5-15 1159 Sonoma Pepperwood Ranch. North arm of Garrison Canyon. Comment
  CAS-BOT-BC175469  Bromus laevipes Catherine Best 1995-6-17 s.n. Sonoma Pepperwood Nature Preserve (property of California Academy of Sciences) Comment
  SBBG26403  Bromus laevipes B. Crampton 1965-6-30 Sonoma summit of Vaca Mts, near county line 872 Comment
  UCD58929  Bromus laevipes Beecher Crampton 1953-5-19 1296 Sonoma 10 miles west of Calistoga. Hwy. 128. Comment
  UCD58934  Bromus laevipes David L. Morgan 1956-6-9 s.n. Sonoma Crane Canyon, on Bennett Valley Rd. 1 mile E of Petaluma Hill Rd. Comment
  RSA176936  Bromus maritimus P. H. Raven 1963-4-28 18249 Sonoma between town of Bodega and Bodega Head. Comment
  CAS-BOT-BC161701  Bromus rubens A. S. Hitchcock 1902-4-4 5216 Sonoma Hills near Santa Rosa. Comment
  UCD60222  Bromus tectorum Freed W. Hoffman 1942-5-11 2264 Sonoma North Coast Ranges. Headwaters of the Gualala River (The Roughs). Comment
  CAS-BOT-BC185376  Bromus vulgaris Roxana S. Ferris; Laura Lorraine 1961-6-14 13536 Sonoma Joy Road grade, 1.8 mile from junction with Bodega Highway. Comment
  CAS-BOT-BC36909  Cakile maritima var. maritima Roxana S. Ferris 1937-8-18 9370 Sonoma Near mouth of Salmon Creek on Bodega Bay. Comment
  CAS-BOT-BC36918  Cakile maritima var. maritima Mrs. H. C. Cantelow 1940-4-20 s.n. Sonoma About 2.2 miles north of Bay near mouth of Salmon River. Comment
  CAS-BOT-BC185404  Calamagrostis bolanderi Beecher Crampton 1957-7-22 4379 Sonoma State Highway 1, 8.7 miles south of Stewart's Point. Comment
  CAS-BOT-BC185411  Calamagrostis bolanderi Peter Rubtzoff 1951-6-10 194 Sonoma Pitkin Marsh, near Forestville. Northern half of Lower Marsh. Comment
  UCR254853  Calamagrostis bolanderi Greg de Nevers 1996-6-17 10831 Sonoma CYO Camp south of Occidental on Bohemian Highway [2136 Bohemian Hwy, Occidental] 122 Comment
  CAS-BOT-BC185402  Calamagrostis bolanderi Mary P. Wells 1985-10-4 677 Sonoma Along road in forest south of Gualala River. Comment
  UC768850  Calamagrostis koelerioides R. F. Hoover 1941-5-14 5090 Sonoma 2 mi s Monte Rio (toward Camp Meeker) Comment
  CAS-BOT-BC185122  Calamagrostis nutkaensis Mary P. Wells 1983-8-3 160 Sonoma Timber Preserve of Oceanic of California, Inc., The Sea Ranch. Comment
  CAS-BOT-BC185124  Calamagrostis nutkaensis David D. Keck 1948-6-29 5929 Sonoma 2 miles north of Fort Ross. 45 Comment
  RSA74072  Calamagrostis ophitidis Baker 1947-5-30 s.n. Sonoma 2 miles NE of Occidental along Harrison Grade Comment
  UCD165132  Calandrinia Peter Rubtzoff 1974-5-11 7396 Sonoma Laguna de Santa Rosa ca. 1 mile ESE of Sebastopol. Comment
  UCR255656  Calandrinia breweri Greg de Nevers 1997-4-12 10930 Sonoma Santa Rosa, Pepperwood Ranch, 3450 Franz Valley Road 400 Comment
  CAS-BOT-BC273239  Calendula arvensis Milo S. Baker 1946-4-2 11306 Sonoma Along an overflow channel West side of Sonoma Cr. a mile or so south of El Verano Comment
  CAS-BOT-BC273245  Calendula arvensis John Thomas Howell 1954-4-1 29138 Sonoma Along highway just east of Shellville Comment
  CAS-BOT-BC290644  Callitriche Peter Rubtzoff 1972-6-29 6814 Sonoma Laguna, Chileno Valley. Comment
  CAS-BOT-BC290675  Callitriche Peter Rubtzoff 1969-5-16 6050 Sonoma Guerneville Marsh, eastern part of the marsh in Pocket Canyon. Comment
  UC1101513  Callitriche heterophylla var. bolanderi Malcolm A. Nobs 1949-8-1 1106 Sonoma 2 mi e Stewart's Point (on road to Geyserville) Comment
  UC17852  Callitriche trochlearis J. Burtt Davy 1896-3-14 1665 Sonoma Cazadero Comment
  UC1134511  Calochortus amabilis H. S. Yates 1934-4-22 3859 Sonoma 3 mi sw Petrified Forest; Calistoga Quad. 182 Comment
  SEINET8194287  Calochortus amabilis W. Roderick 1967-5-20 s.n. Sonoma Ida Clayton Road, NW side of Mount St. Helena. 305 Comment
  CAS-BOT-BC492635  Calochortus luteus A. Day 1982-6-1 82 -63 Sonoma Pepperwood Ranch Comment
  CAS-BOT-BC492643  Calochortus luteus Carl Purdy No date on label. s.n. Sonoma Sonoma Co Comment
  JEPS82291  Calochortus raichei Roger Raiche 1983-7-4 30473 Sonoma above Gilliam Creek; Morrison Ridge 243 Comment
  JEPS82298  Calochortus raichei Roger Raiche 1983-6-19 30413 Sonoma n of Cazadero (above middle fork of Red Slide Creek); The Cedars 457 Comment
  UCD160814  Calochortus superbus James A. Neilson Jr.; Teresa A. Sholars 1975-6-20 3039 Sonoma Section 10, The Geysers. (Exact location unknown. Elevation and coordinates estimated by label maker.) 426 Comment
  UCD161318  Calochortus superbus James A Neilson Jr.; Teresa A. Sholars 1976-5-11 3716 Sonoma Mayacmas Mountains. Eight miles east of U.S. Highway 101, ca. 1/2 mile north of the Geysers Road; Aidlin-Gouvea Leasehold. (Coordinates estimated by label maker.) Comment
  CAS-BOT-BC132636  Calochortus uniflorus John Thomas Howell 1947-6-26 s.n. Sonoma Cunningham Marsh Comment
  CAS-BOT-BC181538  Caltha palustris Peter Rubtzoff 1955-5-21 1871 Sonoma Forestville Marsh Comment
  UCD129813  Calycadenia pauciflora Gerald D. Carr 1971-8-17 640 Sonoma The Geysers. Comment
  UCR255699  Calycadenia truncata Peter Rubtzoff 1966-8-3 5779 Sonoma North Coast Range, going up Bennett Mountain from Lawndale to Bennett Mountain Lake 305 Comment
  CAS-BOT-BC90998  Calycanthus occidentalis G. DeNevers 1981-6-20 1610 Sonoma Pepperwood Ranch. Along Mark West Creek. Also along Leslie Creek. Comment
  CDA31291  Calycanthus occidentalis D. G. Kelch, Ed Biffin 2010-5-3 10 .208 Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  HSC3814  Calycanthus occidentalis M. E. Ferguson, E. Ferguson 1919-6-8 Sonoma Near Guerneville, Russian River. 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
  CAS-BOT-BC224735  Calystegia purpurata subsp. saxicola Alice Eastwood 1899-4-1 s.n. Sonoma Bodega Point Comment
  CAS-BOT-BC224743  Calystegia purpurata subsp. saxicola Mary P. Wells 1981-7-2 s.n. Sonoma On road between Black Point and the Sea Ranch Lodge Comment
  CAS-BOT-BC32999  Calystegia purpurata subsp. saxicola Alice Eastwood 1900-7-4 s.n. Sonoma Bodega Point Comment
  POM180618  Calystegia purpurata subsp. saxicola J. T. Howell 1930-6-8 5290 Sonoma 8.5 miles N of Bodega Bay Comment
  RSA697152  Calystegia purpurata subsp. saxicola J. R. Bruff 1936-8-21 s.n. Sonoma Bodega Bay. Comment
  UC879438  Calystegia purpurata subsp. saxicola Alice Eastwood 1917-5-13 Sonoma Bodega Bay Comment
  JEPS128288  Calystegia subacaulis Roger Raiche 2008-5-18 004 .08 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  SEINET12327834  Calystegia subacaulis F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -171 Sonoma 0.6 mi from junction of Harrison Grade Road on Stoetz Lane 146 Comment
  HSC15433  Camassia quamash subsp. linearis James Faro 1962-4-22 Sonoma Ocean Cove Ranch, 4 mi. N of Fort Ross on Hwy. 1 Comment
  CAS-BOT-BC498783  Camassia quamash subsp. linearis Peter Rubtzoff 1952-5-10 1030 Sonoma Lower part of the Upper Marsh; The Pitkin Marsh, near Forestville Comment
  NY679548  Camissonia cheiranthifolia subsp. cheiranthifolia A. A. Heller 1940-5-17 15626 Sonoma On the bluff N of the town of Bay, Bodega Bay. Comment
  HSC16503  Camissonia ovata F. Demostene 1966-4-3 14 Sonoma 2 mi. E of Healdsburg Comment
  RSA186605  Camissonia strigulosa Peter H. Raven 1963-4-28 18246 Sonoma between town of Bodega and Bodega Head. Comment
  CAS-BOT-BC160365  Camissoniopsis cheiranthifolia subsp. cheiranthifolia A. A. Heller 1940-5-17 15626 Sonoma North of the town of Bay, Bodega Bay Comment
  JEPS81961  Campanula angustiflora Rimo Bacigalupi, and L. R. Heckard, J. R. Sweeney 1965-5-16 9112 Sonoma along road to Franz Valley School road (between 1 and 1.25 mi due w of Sonoma-Napa counties line) 219 Comment
  RSA94358  Campanula californica Peter Rubtzoff 1951-09 708 Sonoma Northwestern; outer North Coast ranges region Margin of creek at Hwy 12, SE of Forestville Comment
  SEINET10463936  Campanula californica Parks 1925-7-20 PARKS s.n. Sonoma Stewarts Point Comment
  SEINET10840067  Campanula californica Sutcliffe 1920-7-18 SUTCLIFFE s.n. Sonoma Annapolis Comment
  CLARK-A1528-2364  Campanula prenanthoides John C. Roos 1957-7-2 Sonoma Miller Ridge Comment
  SEINET10873281  Campanula prenanthoides Rattan 1877-1 RATTAN s.n. Sonoma GUERNEVILLE Comment
  CAS-BOT-BC184127  Capsella bursa-pastoris Peter Rubtzoff 1960-6-25 4510 Sonoma Laguna de Santa Rosa east of Graton between Occidental and Guerneville Roads Comment
  HSC6632  Capsella bursa-pastoris C. S. Chavez 1965-6-3 79 Sonoma 1 mi. E of Forestville on Hwy. 116 Comment
  CAS-BOT-BC37757  Cardamine californica A. A. Heller; H. E. Brown 1902-3-14 5056 Sonoma Near Santa Rosa. Comment
  CAS-BOT-BC37763  Cardamine californica Alice Eastwood 1921-4-24 10387 Sonoma Santa Rosa. Comment
  SD130426  Cardamine californica F. Almeda, G. DeNevers 1981-3-30 4889 Sonoma Pepperwood Ranch Comment
  UCD114498  Cardamine californica R. H. Miller 1949-4-6 24 Sonoma 5 miles southeast of Monte Rio, on Highway 12. Comment
  UCD166729  Cardamine californica Peter Rubtzoff 1962-4-18 4797 Sonoma Freestone marsh. Comment
  UCR265125  Cardamine californica Ann Howald 2015-4-1 3321 Sonoma North Coast Ranges, Stewarts Point-Skaggs Springs Rd, 15.7 miles west of intersection with Rockpile Rd, Wolf Creek drainage 397 Comment
  RSA790011  Cardamine californica var. californica Peter Rubtzoff 1962-4-18 4797 Sonoma Freestone Marsh. Comment
  RSA257003  Cardamine californica var. integrifolia Gary D. Wallace, Larry E. DeBuhr 1972-3-28 1007 Sonoma Northwest of Calistoga, along Ida Clayton Road, 6 mi east of junction with Hwy. 128. Comment
  CDA16135  Cardamine hirsuta G. F. Hrusa 1999-2-26 14925 Sonoma North Coast Ranges; Foote Ranch, NW base of Mt. St. Helena, near corner of Hwy 128 and Ida Clayton Rd. 152 Comment
  UC727778  Cardamine oligosperma Milo S. Baker Apr. 1946 11309 Sonoma Brookside Garden near Kenwood; Brookside Garden near Kenwood Comment
  JEPS128330  Cardamine pachystigma var. dissectifolia Roger Raiche 2010-4-17 016 .10 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  CAS-BOT-BC172571  Carduus Peter Rubtzoff 1973-7-24 s.n. Sonoma Gran Valley Marsh. Comment
  CAS-BOT-BC282948  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-BC281766  Carduus pycnocephalus John H. Thomas 1976-6-15 18280 Sonoma S end of the Sea Ranch, NW part of county, about 7 miles S of Gualala 30 Comment
  CAS-BOT-BC281771  Carduus pycnocephalus Roxana S. Ferris; Laura Lorraine 1948-6-9 11658 Sonoma Franz Valley Rd about 0.75 mile from Mark West Rd Comment
  CDA19871  Carduus pycnocephalus P. Lane 2002-5-14 PDR P 092606 Sonoma North Coast Ranges; King St in Petaluma. 0 Comment
  UCD85585  Carduus pycnocephalus Peta Lewis 1967-5-13 13 Sonoma ca. 2 miles east on River Road, 3 miles north of Guerneville. 22 Comment
  UCD140992  Carex G. F. Hrusa; R. Gross 1996-6-30 13063 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. Single colony on W side of pool. 700 Comment
  UCD161769  Carex James A Neilson Jr. 1976-5-10 3720 Sonoma Mayacmas Mountains. Aidlin-Gouvea Leasehold. (Exact location unknown. Coordinates estimated by label maker.) Comment
  UCD161772  Carex James A Neilson Jr. 1976-5-10 s.n. Sonoma Mayacmas Mountains. Aidlin-Gouvea Leasehold. (Exact location unknown. Coordinates estimated by label maker.) Comment
  CAS-BOT-BC334521  Carex abrupta Peter Rubtzoff 1957-6-28 3375 Sonoma Duncans Mills Marsh. Comment
  CAS-BOT-BC353417  Carex abrupta Peter Rubtzoff 1959-5-31 s.n. Sonoma Freestone Marsh. Comment
  CAS-BOT-BC18147  Carex athrostachya Peter Rubtzoff 1960-5-20 4395 Sonoma Laguna de Santa Rosa east of Graton (between Occidental and Guerneville roads). Comment
  UCR208536  Carex athrostachya Peter Rubtzoff 1960-5-20 4395 Sonoma Laguna de Santa Rosa, east of Graton, between Occidental and Guerneville roads 23 Comment
  RSA0022355  Carex athrostachya Peter Rubtzoff 1970-6-14 6260 Sonoma On River Road about 3 miles W of Fulton. Comment
  JEPS117110  Carex bolanderi Peter Warner 2010-7-8 171 Sonoma Jenner Headlands, along main road across property, ~ 4.1 km, W 322 deg. N of Duncans Mills Comment
  CAS-BOT-BC18979  Carex densa John Thomas Howell 1947-6-26 23298 Sonoma Cunningham Marsh. Comment
  CAS-BOT-BC20484  Carex densa Peter Rubtzoff 1951-6-10 206 Sonoma Pitkin Marsh, near Forestville. South of the Upper Marsh Comment
  CAS-BOT-BC20485  Carex densa Peter Rubtzoff 1952-5-31 1122 Sonoma Pitkin Marsh, near Forestville. Lower part of the Upper Marsh. Comment
  CAS-BOT-BC20486  Carex densa Peter Rubtzoff 1951-7-7 369 Sonoma Pitkin Marsh, near Forestville. Eastern branch of the Upper Marsh. Comment
  RSA758129  Carex densa Peter Rubtzoff 1954-6-6 1466 Sonoma Guerneville Marsh. Comment
  UCD151306  Carex densa James A. Neilson Jr. 1974-8-19 2852 Sonoma Mayacmas Mountains. Little Geysers. (Elevation estimated by label-maker using topo map.) 731 Comment
  CDA11316  Carex dudleyi G. F. Hrusa, A. Buckman, R. Gross 1995-4-1 12031 Sonoma North Coast Biodiversity Arena; LAGUNA DE SANTA ROSA. Todd Rd. Reserve, near corner of Todd Rd. and Llano Rd. Moist upper margins of pools. Comment
  CAS-BOT-BC329295  Carex exsiccata Peter Rubtzoff 1960-5-20 4396 Sonoma Laguna de Santa Rosa east of Graton (between Occidental and Guerneville roads). Comment
  CAS-BOT-BC290553  Carex exsiccata Peter Rubtzoff 1958-5-17 3668 Sonoma Laguna de Santa Rosa north of Sebastopol (near Occidental Road). Comment
  RSA52330  Carex exsiccata J. T. Howell 1946-8-17 22858 Sonoma The Laguna east of Sebastopol Comment
  CAS-BOT-BC28373  Carex gracilior John Thomas Howell 1938-7-3 13966 Sonoma Pitkin Marsh. Comment
  CAS-BOT-BC328118  Carex gynodynama Peter Rubtzoff 1964-6-3 5348 Sonoma Bodega Bay Marsh. Comment
  RSA51940  Carex gynodynama J. T. Howell 1947-6-5 23231 Sonoma Cunningham Marsh Comment
  CAS-BOT-BC21901  Carex harfordii J. W. Congdon 1880-5-12 s.n. Sonoma Petaluma. Comment
  CAS-BOT-BC311836  Carex harfordii Peter Rubtzoff 1974-6-2 7513 Sonoma Upper Green Valley Marsh. Comment
  RSA0022358  Carex harfordii Peter Rubtzoff 1964-5-20 5320 Sonoma Bodega Bay Marsh. Comment
  CAS-BOT-BC422373  Carex hendersonii Peter Rubtzoff 1957-6-28 3387 Sonoma Duncans Mills Marsh. Comment
  SEINET10551416 Image available Carex lacunarum A. Arthur Heller 1902-7-1 Heller 5797 Sonoma Lagoon at Sebastopol. Comment
  CAS-BOT-BC329277  Carex leptopoda Peter Rubtzoff 1964-6-24 5374 Sonoma Lower Salmon Creek Marsh. Comment
  UCR249048  Carex leptopoda Peter Rubtzoff 1954-6-19 1495 Sonoma Guerneville Marsh Comment
  HSC100971  Carex multicaulis Peter Warner 2011-5-26 210 Sonoma Cresta Ranch, (off Mark West Springs Rd. at Mark West Lodge) ~550 m South of Cresta Rd. 265 Comment
  CAS-BOT-BC371451  Carex nudata Peter Rubtzoff 1952-6-3 1176 Sonoma Fitch Mountain Grove, near Healdsburg, along Russian River. 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-BC119579  Carex nudata Helen D. Geis 1902-8-1 564 Sonoma Sulphur Cr. Comment
  SEINET10711633  Carex nudata Prouty 1980-4-12 PROUTY 122 Sonoma T8N, R7W, sec. 8 Porter Creek Rd., .1 mi. west of the junction with Petrified Forest Rd. Mixed Evergreen, south side of road along Porter Creek. 256 Comment
  CAS-BOT-BC119315  Carex obnupta Peter Rubtzoff 1951-6-10 208 Sonoma Pitkin Marsh, near Forestville. S of the Upper Marsh. Comment
  RSA0034042  Carex obnupta Peter Rubtzoff 1964-5-20 5305 Sonoma Brooks Gulch Marsh. Comment
  RSA0034043  Carex obnupta Peter Rubtzoff 1964-7-29 5445 Sonoma Brooks Gulch Marsh. Comment
  UCD140711  Carex obnupta Mary M. Hektner 1974-6-28 090 Sonoma near Walk-on-Beach, Unit 28 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC119281  Carex ovalis Peter Rubtzoff 1952-5-10 1001 Sonoma Pitkin Marsh, near Forestville. Western Branch of the Upper Marsh. Comment
  CAS-BOT-BC320582  Carex ovalis Peter Rubtzoff 1966-6-5 5758 Sonoma Laguna de Santa Rosa, east of Graton, between Occidental and Guerneville roads. Comment
  UC1042356  Carex ovalis Peter Rubtzoff 1951-6-16 232 Sonoma near Forestville (lower part of the Upper Marsh); Pitkin Marsh Comment
  RSA0022356  Carex ovalis Peter Rubtzoff 1966-6-5 5758 Sonoma Laguna de Santa Rosa, east of Graton, between Occidental and Guerneville Roads. Comment
  RSA94273  Carex ovalis Peter Rubtzoff 1951-7-7 378 Sonoma Pitkin Marsh, near Forestville; Eastern branch of the upper marsh. Comment
  CAS-BOT-BC119250  Carex pachystachya Peter Rubtzoff 1951-6-7 112 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh. Comment
  CAS-BOT-BC118942  Carex pellita John Thomas Howell; J. W. Stacey 1937-6-6 13041 Sonoma Pitkin Marsh Comment
  RSA51977  Carex pellita J. T. Howell 1945-5-30 s.n. Sonoma Pitkin Marsh. Comment
  CAS-BOT-BC312706  Carex rostrata Peter Rubtzoff 1971-7-20 s.n. Sonoma Pitkin Marsh. Comment
  SJSU8861  Carex senta R. D. Demostene 1965-4-25 Sonoma creek bed 3.5 mi NW of Cloverdale on State Rte 128 144 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
  RSA244331  Carex stipata Larry E. DeBuhr, Gary D. Wallace 1973-5-18 1087 Sonoma Pitkin-Jones Tree Farm; on Vine Hill road 1.3 miles north of jct. with Guerneyville Road. West of Santa Rosa. Comment
  RSA90862  Carex stipata J. W. Stacey 1937-6-6 13021 Sonoma Sebastopol. Comment
  CAS-BOT-BC117355  Carex stipata var. stipata Peter Rubtzoff 1951-6-30 306 Sonoma Pitkin Marsh, near Forestville. Western branch of the Upper Marsh. Comment
  UCR248867  Carex stipata var. stipata Peter Rubtzoff 1955-5-14 1838 Sonoma Forestville Marsh 71 Comment
  CAS-BOT-BC116930  Carex subbracteata Peter Rubtzoff 1960-5-16 4353 Sonoma Duncan Mills Marsh. Comment
  RSA169301  Carex subbracteata L. S. Rose 1964-6-3 64052 Sonoma N end of Bodega Bay. 2 Comment
  CAS-BOT-BC329284  Carex tumulicola Peter Rubtzoff 1954-8-2 1620 Sonoma Duncans Mills Marsh. Comment
  UCD140928  Carex tumulicola Botany 102 Students 1993-5-8 292 Sonoma Sugarloaf Ridge State Park; about 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Comment
  CAS-BOT-BC230227  Carpobrotus edulis John H. Thomas 1976-6-15 18302 Sonoma S end of Sea Ranch, NW part of county, about 7 miles S of Gualala 30 Comment
  CAS-BOT-BC281914  Carthamus lanatus Peter Rubtzoff 1969-7-5 6110 Sonoma Ca 5 miles NE of Penngrove, on Lichen Rd Comment
  CDA7003  Carthamus leucocaulos T. C. Fuller 1978-8-17 20253 Sonoma 1.6 km (1 mile) west of freeway exit, Highway 101, Asti. 0 Comment
  UCD160818  Castilleja affinis James A. Neilson Jr.; Teresa A. Sholars 1975-6-20 3481 Sonoma Section 10, along Geysers Road, west of The Geysers Resort. (Exact location unknown. Elevation and coordinates estimated by label maker.) 388 Comment
  CAS-BOT-BC249238  Castilleja affinis A. A. Heller; H. E. Brown 1902-4-2 5200 Sonoma Hills Northeast of Santa Rosa Comment
  JEPS74987  Castilleja ambigua subsp. ambigua T. I. and F. M. Chuang 1975-7-5 7518 Sonoma s side Pitkin Marsh Comment
  JEPS9142  Castilleja ambigua subsp. ambigua Docia Patchett 1918-5-28 78 Sonoma near Black Point (3 mi n of Stewarts Point and 6 mi s of Mendocino County line) Comment
  UC1300924  Castilleja ambigua subsp. ambigua Helen K. Sharsmith 1962-5-25 5480 Sonoma from Freestone to Occidental (along the road) Comment
  JEPS77867  Castilleja attenuata Robert M. Lloyd 1965-5-8 3630 Sonoma 3 mi n Highway 12 junction with Agua Caliente Road (on Highway 12, across from Lawrence Triangle End Garage) Comment
  CDA41335  Castilleja attenuata T. C. Fuller 1977-4-21 20195 Sonoma Church of Christ property, 1825 Fulton Road, 0.5 km south of Piner Road, Santa Rosa. 0 Comment
  LA209417  Castilleja campestris M. S. Baker; May 1935 8043 Sonoma ditch along R.R. track, SW of Wright School Comment
  SBBG68587  Castilleja densiflora subsp. densiflora H. E. and S. T. Parks 1930-5-7 632 Sonoma N end of Knight's Valley 106 Comment
  SEINET12327823  Castilleja foliolosa F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -078 Sonoma ca 4 mi NNW of Sonoma on Cavedale Road from junction with CA 12 152 Comment
  OBI60005  Castilleja lacera Joseph Andorfer Ewan 1935-5-13 9250 Sonoma Along low places of RR right-of-way. Wright school on Sebastopal rd Comment
  CAS-BOT-BC243847  Castilleja latifolia L. Beane; Lois E. James 1949-5-11 2068 Sonoma Between Fort Ross and Jenner Comment
  CAS-BOT-BC243857  Castilleja latifolia John Thomas Howell 1934-3-3 11740 Sonoma Near Fort Ross Comment
  JEPS66231  Castilleja miniata subsp. miniata T. I. Chuang with L. R. Heckard, R. Bacigalupi and P. Rubtzoff 1971-6-10 6903 Sonoma about south-central Pitkin Marsh (near end of Templeton Road); , about south-central Comment
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Oct 15 2010
  JEPS27975  Castilleja subinclusa subsp. franciscana Rimo Bacigalupi, and L. Heckard 1961-6-9 7734 Sonoma 1.75 mi sw Occidental (at junction of Joy Road and Bittner road) 249 Comment
  JEPS35564  Castilleja wightii L. R. Heckard 1964-6-12 1390 Sonoma about 1 mi s Bodega Bay (town) (beach between highway and Bodega Bay) Comment
  JEPS35568  Castilleja wightii L. R. Heckard 1964-6-12 1386 Sonoma s side Russian River (just across bridge on State Hwy 1) Comment
  POM180613  Castilleja wightii J. T. Howell 1930-6-8 5281 Sonoma 8.5 miles north of Bodega Bay. Comment
  CAS-BOT-BC39437  Caulanthus lasiophyllus Greg de Nevers 1993-4-27 10408 Sonoma Pepperwood Ranch Natural Reserve. 3450 Franz Valley Road. Along Mark West Springs Road. 457 Comment
  UC1071521  Ceanothus A. E. Wieslander 1939-3-18 873 Sonoma head of Hooker Canyon Sonoma Quad. Comment
  CAS-BOT-BC48509  Ceanothus confusus Milo S. Baker 1939-3-20 9244 Sonoma ca. 4 mi. north of Santa Rosa on road past County Hospital 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
  CAS-BOT-BC83812  Ceanothus confusus D. O. Burge; Steven Kembel 2008-5-29 1003 c Sonoma Mayacmas Mountains, western slope of Mount Hood 560 Comment
  JEPS81592  Ceanothus confusus R. Raiche and K. Zadnik 1982-3-27 20251 Sonoma NW of Hood Mountain (Rincon Ridge) Comment
  RSA21894  Ceanothus confusus J. T. Howell 1935-5-5 12619 Sonoma 6 miles from Santa Rosa on road to Sonoma. Comment
  RSA21914  Ceanothus confusus J. T. Howell 1935-5-5 12618 Sonoma 6 miles from Santa Rosa on road to Sonoma. Comment
  UC107067  Ceanothus confusus A. E. Wieslander 1939-3-18 874 Sonoma Rincon Hills, S edge 121 Comment
  UC1281312  Ceanothus confusus H. E. McMinn 1944-11-5 5451 Sonoma Rincon Ridge, olive orchard Comment
  UC634561  Ceanothus confusus H. L. Mason 1934-4-28 8072 Sonoma Jensen's Ranch, at head of Dohrmans Creek Comment
  UC1299547  Ceanothus cuneatus var. cuneatus Freed W. Hoffman 1947-2-28 767 Sonoma near Healdsburg (Wild Hog Ridge, heatwaters of Palmer Creek, a branch of Mill Creek); North Coast Ranges Comment
  UC909729  Ceanothus divergens Milo S. Baker 1950-5-20 12226 Sonoma Coleman Ranch summit above; Hope Valley Comment
  RSA114009  Ceanothus divergens subsp. confusus Milo S. Baker 1939-3-20 9244 Sonoma Top of hill 4 miles N of Santa Rosa on road past County Hospital Comment
  CHSC39450  Ceanothus foliosus B. A. Stein; B. Shumacher 1981-3-7 445 Sonoma Vine Hill School Rd. 45 Comment
  UC1070624  Ceanothus foliosus C. M. Belshaw 1936-3-8 1590 Sonoma 3/4 mi n Annadel (nw of Kenwood.); Santa Rosa quad. 144 Comment
  UC33653  Ceanothus foliosus F. T. Bioletti 1892-1 Sonoma Sonoma Comment
  UCD112129  Ceanothus foliosus J. M. Tucker 1951-6-26 2144 Sonoma Near Top of the World Ranch, ca. 5 miles due east of Glen Ellen. Comment
  SEINET12210993  Ceanothus foliosus F. H. Utech, Knight, W.; Knight, I. 1984-1 84 -102 Sonoma ca 4 mi NNW of Sonoma on Cavedale Road from junction with CA 12 396 Comment
  CAS-BOT-BC50003  Ceanothus gloriosus John Thomas Howell 1935-5-5 12615 Sonoma 6 miles from Santa Rosa on road to Sonoma Comment
  UC70430  Ceanothus gloriosus var. exaltatus Milo S. Baker 1898-4-2 24 Sonoma near Guerneville. Comment
  UCD112155  Ceanothus gloriosus var. exaltatus L. Whitney 1932-4-1 s.n. Sonoma Vine Hill district, Santa Rosa. Comment
  CAS-BOT-BC49950  Ceanothus gloriosus var. exaltatus Milo S. Baker 1931-3-7 s.n. Sonoma About 10 mi. West of Santa Rosa at Frei Ranch Comment
  RSA25701  Ceanothus gloriosus var. exaltatus Carl B. Wolf 1941-7-17 11022 Sonoma 1 mile NW of Sebastopol along Hwy 12; 1 mile even from main corner. 30 Comment
  UCSB25383  Ceanothus gloriosus var. gloriosus McMinn, H. 1938-6-20 Sonoma Stewarts Point to Gualala Comment
  CAS-BOT-BC63739  Ceanothus griseus Alisa S. M. McKenzie 1981-1-31 11 Sonoma Kolmer Gulch, calif. State highway 1 at marker 34. Top of bank w. side of creek, n. side of road. Comment
  UC486541  Ceanothus griseus Mrs. G. Earle Kelly 1932-6-13 Sonoma 4.5 mi n Ft. Ross Comment
  RSA1120  Ceanothus integerrimus var. californicus B. D. Stark, H. E. McMinn 1929-7-22 1380 Sonoma Sonoma-Mendocino County line. Comment
  SDSU10320  Ceanothus jepsonii D. F. Howe 1963-5-23 3531 Sonoma 4.0 miles N of Cloverdale on #128. 335 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
  UCD158875  Ceanothus jepsonii James A. Neilson Jr.; Teresa A. Sholars 1974-12-29 2906 Sonoma Mayacmas Mountains; northwest corner of Section 15, The Geysers. (Elevation estimated by label maker using Google Earth.) 609 Comment
  SEINET12211093  Ceanothus jepsonii var. albiflorus I. Knight, Knightwedwards, S. 1986-1 5360 Sonoma Access from Healdsburg-Geysers Road 975 Comment
  CAS-BOT-BC51880  Ceanothus parryi Lester Rowntree 1933-6-5 s.n. Sonoma Occidental Comment
  CAS-BOT-BC51889  Ceanothus parryi A. A. Heller; H. E. Brown 1902-5-29 5620 Sonoma Mt. Hood Comment
  JEPS86811  Ceanothus parryi Jack and Betty Guggolz 1991-5-4 1121 Sonoma firebreak on the S side of Bradford Mountain one mi W of Dry Creek Road 341 Comment
  SD133984  Ceanothus parryi Greg de Nevers, Frank Alameda 1987-4-11 8138 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Road, Santa Rosa 99 Comment
  UC1071243  Ceanothus parryi A. Lewis 1932-5-14 77 Sonoma Calabasas Creek Napa Quadrangle 457 Comment
  UC1071244  Ceanothus parryi A. Lewis 1932-5-18 94 Sonoma Calabasas Creek Napa Quad., Calabasas Creek 457 Comment
  UCD112879  Ceanothus parryi Roger Raiche 1985-4-6 RR 50183 Sonoma West of Healdsburg, Dry Creek area, ridge west of Dry Creek Valley and north of Dorman Canyon (Crane Creek). 243 Comment
  UC1614462  Ceanothus purpureus Charles M. Belshaw 1936-3-8 1582 Sonoma 3/4 mi. n. Annadel (n.w. of Kenwood) 144 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
  CAS-BOT-BC53045  Ceanothus sonomensis J. Clausen 1933-3-25 724 Sonoma About 4 miles east of Warfield on road to Oakville, near the summit of the Youngman Ranch. 213 Comment
  CAS-BOT-BC53046  Ceanothus sonomensis Cliff Schmidt; Walter Knight 6055 Sonoma Cavedale Road 274 Comment
  UCD112701  Ceanothus sonomensis Roman Gankin 1966-3-3 689 Sonoma On south-facing slope in Hooker Canyon, below Cavedale Road, 3.1 miles east of junction with State Highway 12. Comment
  SEINET12210861  Ceanothus sonomensis W. Knight, Knight, I. 1982-1 4599 Sonoma Two mi up Pythian Road from Los Guilicos School for Girls near Kenwood, on Hoods Peak 305 Comment
  CAS-BOT-BC52347  Ceanothus thyrsiflorus Mary P. Wells 1985-9-13 654 Sonoma Forest no. of junction of Timber Ridge and Longmeadow Roads, The Sea Ranch Comment
  UC1071391  Ceanothus thyrsiflorus H. S. Yates 1934-4-21 3784 Sonoma near Freestone; Sebastopol Quadrangle Comment
  CAS-BOT-BC52393  Ceanothus velutinus L. R. Abrams 1920-7-4 7638 Sonoma Seaview Comment
  JEPS128218  Centaurea melitensis Roger Raiche 2000-5-5 098 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UCD161376  Centaurea melitensis James A. Neilson Jr. 1976-6-18 s.n. Sonoma Mayacmas Mountains. Ridge between Squaw Creek and Big Sulphur Creek, above Cloverdale Mine, (Elevation and exact location estimated by label maker.) 731 Comment
  CAS-BOT-BC277158  Centaurea melitensis G. DeNevers 1981-5-30 1413 Sonoma Pepperwood Ranch. In Bertoli's Creek Comment
  JEPS105487  Centaurea stoebe subsp. micranthos Elaine Mahaffey Sep 2003 Sonoma The Sea Ranch, Highway 1, 100-200 yards N of the Del Mar Community Center, large pull-out on ocean side of highway; extreme NW Sonoma Co. Comment
  RSA662536  Centaurium floribundum J. C. Roos 1957-7-3 6652 Sonoma Healdsberg Comment
  JEPS97613  Centaurium trichanthum R. D. Stone and G. L. Clifton 1983-6-16 551 Sonoma Little Geysers; Upper Big Sulphur Creek drainage 701 Comment
  UC75838  Centromadia fitchii Miss M. Alice King 1897-6-1 Sonoma near Healdsburg Comment
  CAS-BOT-BC288809  Centromadia fitchii David D. Keck 1933-11-10 2726 Sonoma 1 mile E of Shellville Comment
  CAS-BOT-BC271544  Centromadia parryi subsp. parryi John Thomas Howell 1930-10-5 5530 Sonoma Dry field 5.8 miles SW of Sonoma on Black Point cutoff 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
  CAS-BOT-BC279399  Centromadia pungens subsp. pungens H. M. Hall 1931-10-6 13264 Sonoma West of Petaluma Comment
  CAS-BOT-BC251310  Cerastium Peter Rubtzoff 1960-6-5 s.n. Sonoma Laguna de Santa Rosa, northeast of Graton, near Laguna Road Comment
  UC1084464  Cerastium arvense G. Thomas Robbins 1937-6-6 228 Sonoma hills 2 - 3 mi. e. of Bodega Bay Comment
  JEPS77255  Cerastium glomeratum Robert M. Lloyd 1963-4-24 2394 Sonoma 13.8 mi. from State Hwy. 12 on rd. to Oakdale 365 Comment
  SD134007  Ceratophyllum demersum Peter Rubtzoff 1962-10-23 5123 Sonoma Laguna de Santa Rosa area east of Graton, between Occidental and Guerneville roads. Comment
  CAS-BOT-BC279781  Chamaemelum fuscatum Jerry Parsons 1983-3-26 25 Sonoma 1/2 m off Highway 101, S of City of Santa Rosa 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
  CAS-BOT-BC166903  Chenopodium Peter Rubtzoff 1973-10-10 7340 Sonoma Tributary of Americano Creek, 2 miles west of Bloomfield. Comment
  UCD166099  Chenopodium Peter Rubtzoff 1971-8-9 6639 Sonoma Laguna, Chileno Valley. Comment
  CAS-BOT-BC191511  Chorizanthe cuspidata var. villosa W. P. Vestal; A. G. Vestal 1947-5-13 s.n. Sonoma Bodega Head Comment
  UC84506  Chorizanthe cuspidata var. villosa Alice Eastwood 1900-7-4 Sonoma Bodega Point; ; Bodega Pt., Sonoma Co. Comment
  CAS-BOT-BC257010  Chorizanthe membranacea H. N. Bolander 1860-1-1 3959 Sonoma At the geysers Comment
  CAS-BOT-BC252850  Chorizanthe polygonoides var. polygonoides Alice Eastwood 1925-5-9 11750 Sonoma Mt. St. Helena Comment
  JEPS38077  Chrysolepis chrysophylla Milo S. Baker Sep 1920 Sonoma near Gualala River mouth; Gualala River Comment
  CAS-BOT-BC285251  Cichorium intybus Greg de Nevers 1992-6-26 10186 Sonoma Pepperwood Natural Preserve. 3450 Franz Valley Road. Along Franz Creek 91 Comment
  UCR244695  Cirsium Peter Rubtzoff 1970-9-3 6368 Sonoma above Shell Beach in Sonoma Coast State Beach area 122 Comment
  UCR249044  Cirsium Peter Rubtzoff 1960-9-14 4546 Sonoma Laguna de Santa Rosa, east of Graton, between Occidental and Guerneville roads 37 Comment
  RSA790282  Cirsium arvense Peter Rubtzoff 1955-8-13 2049 Sonoma Willow Creek Marsh. Comment
  OBI16749  Cirsium douglasii var. douglasii Robert F. Hoover 1966-7-17 9914 Sonoma Sausal Crk N of Alexander Valley Comment
  UC178902  Cirsium douglasii var. douglasii Katharine Brandegee 1905-6-25 Sonoma Bodega Comment
  POM53742  Cirsium douglasii var. douglasii A. A. Heller 1902-7-2 5803 Sonoma Santa Rosa creek, east of Santa Rosa. Comment
  CAS-BOT-BC290636  Cirsium occidentale var. occidentale Peter Rubtzoff 1958-7-26 3801 Sonoma Laguna de Santa Rosa, east of Sebastopol. Comment
  CAS-BOT-BC290642  Cirsium occidentale var. occidentale Peter Rubtzoff 1960-9-14 4546 Sonoma Laguna de Santa Rosa area, east of Graton, between Occidental and Guerneville roads. Comment
  UC76019  Cirsium occidentale var. venustum Milo S. Baker 1898-6-11 658 Sonoma Little Sulphur Creek Comment
  UCD158724  Cirsium occidentale var. venustum Teresa A. Sholars 1976-9-10 s.n. Sonoma Mayacmas Mtns. Ca. 1.5 mi southeast of the junction of Socrates Mine Rd. and Pine Flat Rd. Elevation estimated by label maker. 822 Comment
  CAS-BOT-BC280367  Cirsium occidentale var. venustum Walter Knight; Irja Knight 1967-7-24 1966 Sonoma Between Santa Rosa and St. Helena on St. Helena Road about 2 miles from Napa County line Comment
  CAS-BOT-BC280542  Cirsium quercetorum Mrs. H. C. Cantelow 1936-5-3 s.n. Sonoma Near El Verano Comment
  CAS-BOT-BC371461  Cirsium remotifolium var. odontolepis Greg de Nevers 1989-6-10 9080 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. East side of Horse Hill. 400 Comment
  UCD158719  Cirsium vulgare James A. Neilson Jr. 1974-7-31 3025 Sonoma Mayacmas Mountains. Roadside, near Little Geysers. 822 Comment
  CAS-BOT-BC285896  Cirsium vulgare John Thomas Howell 1946-8-17 22865 Sonoma Cunningham Marsh Comment
  RSA800600  Citrullus lanatus Peter Rubtzoff 1955-10-12 2169 Sonoma Vacation Beach, near Guerneville. Comment
  UC1299416  Clarkia affinis Freed W. Hoffman 1947-5-18 771 Sonoma near Camp Meeker; North Coast Ranges, Dutch Bill Creek Comment
  UCD161248  Clarkia affinis James A Neilson Jr.; Teresa A. Sholars 1976-5-11 3705 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
  UCSB15868  Clarkia amoena Breedlove, Dennis 1962-6-6 Sonoma along State Highway 128; 0.9 mile northwest of U.S. Highway 101; at Cloverdale 106 Comment
  UC107819  Clarkia amoena subsp. amoena Katharine Brandegee 1905-6-26 Sonoma Bodega Bay Comment
  CAS-BOT-BC161046  Clarkia amoena subsp. amoena Alva Day 1982-6-1 82 -68 Sonoma Pepperwood Ranch. Franz Valley Rd. Comment
  CAS-BOT-BC161056  Clarkia amoena subsp. amoena Peter Rubtzoff 1962-7-14 s.n. Sonoma 4 mi. west of Petaluma Comment
  RSA778735  Clarkia amoena subsp. amoena Ralph Hoffman 1931-7-14 s.n. Sonoma Bay SW of Sonoma Comment
  POM37827  Clarkia amoena subsp. huntiana Marcus E. Jones 1882-7-18 s.n. Sonoma Duncan s Mills Comment
  CAS-BOT-BC172206  Clarkia concinna Rimo Bacigalupi 1926-5-2 1397 Sonoma Cazadero Comment
  CAS-BOT-BC172215  Clarkia concinna M. S. Baker 1898-5-7 s.n. Sonoma Glen Ellen Comment
  UC725785  Clarkia concinna subsp. concinna A. A. Heller 1940-5-10 15600 Sonoma near Fort Ross Comment
  UCD104045  Clarkia davyi Frederica Bowcutt 1984-6-23 417 Sonoma Salt Point State Park. Approx. 20 miles N of Jenner and 80 miles S of Fort Bragg on the Sonoma County coast. W of Highway 1, N of Gerstle Cove about 1/8 mile. 15 Comment
  RSA60765  Clarkia gracilis subsp. sonomensis A. A. Heller 1902-6-10 5682 Sonoma Santa Rosa Comment
  CAS-BOT-BC163140  Clarkia gracilis subsp. sonomensis G. DeNevers 1981-6-4 1436 Sonoma On the roadcut by the buckeye tree S of the Garrison Gate Comment
  CAS-BOT-BC163150  Clarkia imbricata John Thomas Howell 1945-7-18 21315 Sonoma Dry slope bordering Pitkin Marsh Comment
  UC930737  Clarkia purpurea subsp. quadrivulnera Alice Eastwood, John Thomas Howell 1939-6-11 7415 Sonoma near Triniti P.O.; Hood Mt. Range Comment
  RSA448314  Clarkia purpurea subsp. quadrivulnera Christopher Davidson 1977-6-20 6017 Sonoma Dry Creek Rd., 9.3 miles W of Geyserville. 91 Comment
  RSA448463  Clarkia unguiculata Christopher Davidson 1977-6-20 6020 Sonoma Dry Creek Rd., 9.3 miles W of Geyserville. 91 Comment
  SEINET12194281  Clarkia unguiculata F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -156 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd 80 Comment
  UCD105033  Clarkia unguiculata Frederica Bowcutt 1994-6-12 1868 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. Along Pony Gate Trail above Adobe Canyon Road (road visible from trail.) Less than 1/8 mile SW of trail juncture with Pony Gate Gulch Creek. 326 Comment
  CAS-BOT-BC439320  Claytonia exigua subsp. exigua Catherine Best 1982-3-20 s.n. Sonoma Stoetz Lane, 2 mi. north east of Occidental Comment
  CAS-BOT-BC439409  Claytonia gypsophiloides R. Bacigalupi 1948-3-6 2855 Sonoma 2 mi. w. of Skaggs Springs Comment
  CAS-BOT-BC439403  Claytonia gypsophiloides Peter H. Raven; H. L. Mason; R. Ornduff; et al 1957-3-23 10530 Sonoma 1.1 mi. s. of Mendocino Co. line on State Highway 128, n. of Cloverdale Comment
  HSC49616  Claytonia gypsophiloides R. York 1979-4-8 202 Sonoma Along Hwy. 128, 2 mi. N of Calistoga 305 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
  UCD100671  Claytonia parviflora subsp. parviflora Jennifer Bury; Peggy Herzog 1993-5-8 291 Sonoma Sugarloaf Ridge State Park. About 40 air miles N of San Francisco; about 11 air miles E of Santa Rosa and 2.5 air miles NE of Kenwood. In Adobe Canyon N of Sugarloaf Ridge and S of Red Mtn 1 mile. Near visitor center. 396 Comment
  CAS-BOT-BC443871  Claytonia sibirica Peter Rubtzoff 1964-7-3 5340 Sonoma Bodega Bay Marsh. Comment
  UCR255028  Clematis lasiantha Greg de Nevers 1993-8-14 10489 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 457 Comment
  SEINET12091841  Clematis lasiantha F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -101 Sonoma ca 4 mi NNW of Sonoma on Cavedale Road from junction with CA 12 396 Comment
  CAS-BOT-BC92754  Clematis ligusticifolia John I. Carlson 1917-7-23 s.n. Sonoma Preston. Comment
  CAS-BOT-BC92755  Clematis ligusticifolia L. R. Abrams 1916-7-4 5796 Sonoma Road between Petrified Forest and Mark West. Comment
  RSA135361  Clematis ligusticifolia Volney Rattan 1877-6-21 s.n. Sonoma Santa Rosa Comment
  CAS-BOT-BC499955  Clintonia andrewsiana George Syme 1917-4-25 s.n. Sonoma Guerneville Comment
  RSA377070  Clintonia andrewsiana Christopher Davidson 1977-6-20 6033 Sonoma Ridge Crest road, on Sea Ranch property south of Gualala River. 30 Comment
  SEINET12051401  Clintonia andrewsiana F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -225 Sonoma ca 0.15 mi SE from East Ave jct with Bohemian Road on latter enroute to Occidental from Camp Meeker 140 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
  SBBG6867  Collinsia heterophylla H. and M. Dearing 1933-5-14 1742 Sonoma Cloverdale Comment
  RSA94790  Collinsia sparsiflora A. A. Heller, H. E. Brown 1902-4-11 5268 Sonoma Bodega Bay Comment
  JEPS34523  Collinsia sparsiflora var. arvensis Freed W. Hoffman 1947-4-7 1893 Sonoma Chalk Hill Rd North Coast Ranges Comment
  UC103393  Collinsia sparsiflora var. arvensis Michener and Bioletti Apr 1893 Sonoma Kenwood Comment
  UC26649  Collinsia sparsiflora var. arvensis Alice King May 1897 Sonoma Healdsburg Comment
  JEPS6348  Collinsia sparsiflora var. arvensis Milo S. Baker Apr 1923 Sonoma near Weaver's (Bennett Valley rd, Bennett Valley, se of Santa Rosa); Bennett Valley Comment
  JEPS22935  Collinsia sparsiflora var. sparsiflora Volney Rattan 1880 Sonoma Healdsburg Comment
  UC424769  Collinsia sparsiflora var. sparsiflora Milo S. Baker Apr 1929 3569 C Sonoma South East Macdonald Reservoir is in the hills just e of Santa Roasa and about 1/2 mi s of the Sonoma Hwy (State 12) South East Macdonald Reservoir Comment
  UC58446  Collinsia sparsiflora var. sparsiflora A. A. Heller 1903-4-23 6601 Sonoma Fort Ross Comment
  UCD35326  Collinsia tinctoria Beecher Crampton 1955-6-8 2824 Sonoma 7 miles northwest of Calistoga, State Hwy. 128. Comment
  CAS-BOT-BC229545  Collomia diversifolia J. C. Roos 1950-7-22 4873 Sonoma 2 miles E of Duncan Mills 60 Comment
  UC879756  Collomia grandiflora Eliz. Parsons Hawver 1915-6-3 Sonoma Skaggs Springs Comment
Read comments
Jan 23 2016
  SEINET12332732  Collomia rawsoniana W. Knight, Knight, I.; Knight, T. 1985-1 5144 Sonoma Petaluma Comment
  UCD127322  Conium maculatum Andreas Stohr 1996-5-19 27 Sonoma Roadside near to Pine Grove. 6 miles west of Petaluma. 100 Comment
  NY318907  Convolvulus saxicola A. Eastwood 1900-7-4 Sonoma Bodega Point Comment
  CAS-BOT-BC288915  Conyza canadensis Peter Rubtzoff 1951-9-2 724 Sonoma Pitkin Marsh, near Forestville. Area separating the western branch of the Upper Marsh from the eastern Comment
  JEPS64349  Corallorhiza maculata Docia I. Patchett 1917-5-7 Sonoma Cazadero Rd near Williams Comment
  JEPS28819  Cordylanthus tenuis subsp. capillaris L. R. Heckard 1962-11-27 1317 Sonoma 3/4 mi nw Occidental School (along Stoetz Lane) Comment
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Jul 27 2009
  OBI9576  Cordylanthus tenuis subsp. capillaris Lewis S. Rose 1962-1 Sonoma Comment
  RSA537704  Cordylanthus tenuis subsp. capillaris T. I. Chuang 1970-7-25 6834 Sonoma Stoetz Road, west of Harrison Grade, 2.7 miles east of Occidental Comment
  CAS-BOT-BC212293  Cornus glabrata Elizabeth Parsons Hawver 1915-6-3 s.n. Sonoma Skaggs Springs Comment
  CAS-BOT-BC210429  Cornus sericea Peter Rubtzoff 1951-7-22 534 Sonoma Pitkin Marsh, near Forestville. Uppermost part of the western branch of the Upper Marsh Comment
  CAS-BOT-BC290299  Cotula coronopifolia Walter Knight; Irja Knight 1963-8-13 203 Sonoma Horseshoe Cove Comment
  POM66990  Cotula coronopifolia Marcus E. Jones 1882-7-18 s.n. Sonoma Duncan's Mills. Comment
  CAS-BOT-BC290303  Cotula coronopifolia Peter Rubtzoff 1954-8-9 1666 Sonoma Bodega Head Marsh. Comment
  RSA790515  Cotula coronopifolia Peter Rubtzoff 1970-10-29 6419 Sonoma Dune pond near U.C. Bodega Marine Laboratory. Comment
  CAS-BOT-BC427653  Crassula aquatica Peter Rubtzoff 1972-5-25 6757 Sonoma Laguna, Chileno Valley. Comment
  SD206989  Crassula aquatica Reid Moran, C. Quibell and W. Knight. 1991-5-21 31054 Sonoma Diversion channel south of Spring Lake, Santa Rosa. 99 Comment
  CAS-BOT-BC427643  Crassula aquatica H. K. Wagnon 1989-5-23 1956 Sonoma Spring Lake Park and environs. Adjacent to Montgomery Drive. Adjacent to Spring Creek diversion channel 67 Comment
  CAS-BOT-BC427649  Crassula aquatica Peter Rubtzoff 1959-4-19 4040 Sonoma Laguna de Santa Rosa east of Sebastopol, near Santa Rosa road crossing. Comment
  CAS-BOT-BC427659  Crassula aquatica Peter Rubtzoff 1969-6-14 6074 Sonoma 6.5 mi. northeast of Penngrove, on Lichau Road 426 Comment
  CHSC59106  Crassula solieri Reid Moran; Chas. Quibell 1991-5-15 31053 Sonoma Sonoma Valley Regional National Park, 1 km E of Glen Ellen (Rt. 12 0.5km S of Arnold Drive). 110 Comment
  SD141317  Crassula solieri Reid Moran, Charles Quibell 1991-5-15 31053 Sonoma Sonoma Valley Regional Park, 1.0 km east of Glen Ellen. 110 Comment
  SBBG50614  Crataegus douglasii D. Ryerson 1969-5-3 42 Sonoma W side of Jonive Rd, 0.5 mi N of jct with Bodega Hwy, ca. 1.5 mi NE of Freestone Comment
  SEINET11909863  Crataegus douglasii W. Knight, Knight, I. 1982-1 4609 Sonoma between Occidental and Freestone Comment
  CAS-BOT-BC143505  Crataegus gaylussacia Peter Rubtzoff 1958-5-4 3628 Sonoma Forestville Marsh Comment
  RSA155431  Crataegus suksdorfii L. S. Rose 1962-6-1 62066 Sonoma 1 miles NW of Freestone Marsh 76 Comment
  RSA94007  Crataegus suksdorfii Peter Rubtzoff 1951-6-16 212 Sonoma N half of lower Pitkin Marsh, SE of Forestville Comment
Read comments
Apr 28 2010
  UC750804  Crocanthemum scoparium var. scoparium Charles B. Heiser Jr. 1946-5-19 1744 Sonoma w Santa Rosa; Vine Hill Comment
  UC1299210  Crocanthemum scoparium var. vulgare Freed W. Hoffman 1947-7-30 1412 Sonoma near Guerneville; North Coast Ranges, Mt. Jackson Comment
  CDA36155  Crupina vulgaris Michael Perlmutter 2011-5-26 Sonoma Private land, owned by Fairway View Estates, adjacent to Annadel State Park. 0 Comment
  JEPS75423  Crupina vulgaris Ken Stocking 1976-6-27 Sonoma se of Bennett Valley golf course (City of Santa Rosa land); Santa Rosa Comment
  CDA4460  Crupina vulgaris G. D. Barbe 1991-6-6 4430 Sonoma Inside western boundary of Annadel State Park, Santa Rosa. Comment
  CDA4478  Crupina vulgaris G. D. Barbe, Willa May Lowary, T. C. Fuller 1976-7-7 2185 Sonoma West of Matanzas Creek, southeast of Bennett Valley golf course, Santa Rosa. 0 Comment
  CAS-BOT-BC190146  Crypsis schoenoides Peter Rubtzoff 1987-9-27 9855 Sonoma Russian River at Forest Hills, ca. 6 miles east of Guerneville. Comment
  CAS-BOT-BC361289  Cryptantha Greg de Nevers 1993-5-6 10433 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa At Weimar Flat 457 Comment
  SEINET7067255  Cryptantha A. G. Vestal 1947-5-13 s.n. Sonoma About 1.3 miles north of Salomon Creek. Coordinate datum: NAD27. UTM 10, 647035mE, 3964854mN. Comment
  UC24715  Cryptantha intermedia H. N. Bolander Apr 1864 3817 Sonoma Mark West Creek Comment
  UC908734  Cryptantha muricata Milo S. Baker 1947-5-7 11735 Sonoma near base of Sugar Loaf (sw slope of Hood Mt.); Hood Mt. 365 Comment
  CAS-BOT-BC164356  Cucurbita Peter Rubtzoff 1958-8-9 3847 Sonoma Laguna de Santa Rosa, N of Sebastopol (near Occidental Road). Comment
  UCD110844  Cupressus macnabiana Christopher Mallek 2008-1 s.n. Sonoma Hooker Canyon. 590 Comment
  CAS-BOT-BC85468  Cupressus sargentii Rimo Carlo Felice Bacigalupi 1935-7-12 2374 Sonoma Pine Flat, southern end Mayacamas Range, 10 miles east of Healdsburg. Comment
  CAS-BOT-BC376333  Cuscuta Greg de Nevers 1996-11-10 10891 Sonoma Just north of Highway 37 opposite Port Sonoma, Lower Ranch. 0 Comment
  RSA120965  Cuscuta campestris Anita Noldeke 1956-7-24 s.n. Sonoma Sebastopol Comment
  RSA786666  Cuscuta pentagona Peter Rubtzoff 1975-9-28 8414 Sonoma Russian River bank at Forest Hills, 5.5 mi east of Guerneville. 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
  UCD60037  Cynodon dactylon Peter Rubtzoff 1951-7-14 456 Sonoma Pitkin Marsh, near Forestville. Comment
  SEINET9355702  Cynoglossum grande John Nelson, Wnek, R. 2000-3-7 20935 Sonoma Open ground of steep slope, N edgeo f Hwy 116 just W of Fern Grove cabins on W side of Guerneville With Oxalis oregana, Stachys rigida, Nemophila parviflora, Comment
  SEINET12329798  Cynoglossum grande I. Knight, Knight, W.; Edwards, S. 1986-1 5350 Sonoma along trail to summit of Geyser Peak 853 Comment
  CAS-BOT-BC190436  Cynosurus echinatus Barrett Anderson 1987-4-27 3475 Sonoma Petaluma, south of El Rose and west of D Street. 120 Comment
  JEPS27965  Cynosurus echinatus Rimo Bacigalupi and L. R. Heckard 1961-6-9 7743 Sonoma about 3/4 mi nw Occidental School (just below serpentine area along Stoetz Lane ca 1/2 mi nw of its junction w/Harrison Grade rd, nr reservoir at head North Fork of Lancel Creek); head of North Fork of Lancel Creek 222 Comment
  UC1011015  Cynosurus echinatus Virginia Bufford 1936-5-1 154 Sonoma head of Bodega Canyon Comment
  UCD60140  Cynosurus echinatus Gerry North 1993-4 47 Sonoma Flora of Sugarloaf Ridge State Park. Ca. 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. At first pullout on right after Goodspeed trailhead, less that 0.2 mile east of park entrance gate. 243 Comment
  UCD60159  Cynosurus echinatus Gerry North 1993-4 21 Sonoma Flora of 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. Second pullout on right after park entrance. 0.3 mile from Goodspeed trailhead. 50m south of Pony Gate Gulch Creek crossing. 274 Comment
  UCD60165  Cynosurus echinatus David L. Morgan 1956-5-29 s. n. Sonoma On Burnside Rd., near junction of Barnett Valley Rd. Comment
  CAS-BOT-BC114516  Cyperus eragrostis Walter Knight; Irja Knight 1963-12-27 817 Sonoma Pine Flat Road Comment
  SD99411  Cyperus eragrostis Christopher Davidson 1977-6-17 5876 Sonoma State Highway 12; ca. 3 miles west of Guerneville; sand bar in Russian River; riparian zone along Russian River bordered by coast redwood forest. 14 Comment
  UCD54068  Cyperus eragrostis M. Wiesendanger 1927-5-5 1755 Sonoma Sonoma. Comment
  CAS-BOT-BC114339  Cyperus esculentus Peter Rubtzoff 1965-9-11 5650 Sonoma Russian River margin at Forest Hills (5.5 mi E of Guerneville). Comment
  UCR254758  Cyperus niger Peter Rubtzoff 1970-7-17 6290 Sonoma San Francisco Bay Region, 5 miles north of Sears Point 9 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-BC113911  Cyperus niger var. capitatus Peter Rubtzoff 1963-9-28 5283 Sonoma Fitch Mtn. Grove, 2 mi E of Healdsburg. Shaded, wet ground on Russian River bottom. Comment
  CAS-BOT-BC113902  Cyperus niger var. castaneus Milo S. Baker 1938-6-1 10184 Sonoma Wet spot Bennett Valley Road. Comment
  JEPS128196  Cypripedium californicum Roger Raiche 1982-5-29 20416 A Sonoma The Cedars, Mineral Springs Canyon. Lower Russian River, Big Austin Creek watershed. Comment
  UCD167422  Cypselea humifusa Peter Rubtzoff 1975-8-26 8358 Sonoma Bennett Mountain Lake. 361 Comment
  RSA177983  Cytisus scoparius Robert F. Thorne 1965-4-19 34310 Sonoma Guerneville Hwy, 1 mile E of Laguna Road; 4 miles W of Santa Rosa. 46 Comment
  CAS-BOT-BC189805  Dactylis glomerata G. DeNevers 1981-5-23 1281 Sonoma Pepperwood Ranch. At Big Roadcut on Franz Valley Road, below Walter Ward's House. Comment
  CAS-BOT-BC189848  Dactylis glomerata Mary P. Wells 1984-5-24 299 Sonoma Annadel State Park (near Santa Rosa). Comment
  JEPS73354  Damasonium californicum Edward Lee with Joe Ewan and Annetta Carter 1934-4-30 760 Sonoma 1 mi. w. Two Rock junction Comment
  CAS-BOT-BC192266  Danthonia californica G. DeNevers 1982-5-2 1972 Sonoma Pepperwood Ranch Comment
  CAS-BOT-BC192271  Danthonia californica Alice Eastwood 1921-4-24 10358 Sonoma Santa Rosa Comment
  HSC83438  Danthonia californica Mary M. Hektner, Cathy Hendel, Susan Dakuzaku 1974-6-21 43 Sonoma Sea Ranch, near State Hwy 101, Unit 2 Owner's Map. Comment
  UCD60997  Danthonia californica var. americana A. A. Beetle; G. L. Stebbins Jr. 1942-6-4 3578 Sonoma Corner of Wright Road and Rt. 12 in outskirts of Santa Rosa. Comment
  POM267996  Danthonia californica var. californica D. D. Keck 1944-7-11 5513 Sonoma 1 mi. S. of bridge across mouth of Russian River, open grassy field 1/2 mi. from ocean 23 Comment
  UCD166101  Datura stramonium Peter Rubtzoff 1971-8-23 6651 Sonoma Laguna, Chileno Valley. Comment
  UCD127398  Daucus carota J. M. Tucker; C. H. Lamoureux 1958-6-8 3408 Sonoma beside State Highway 12, 1.6 miles southeast of center of Guerneville. Comment
  UCR279606  Deinandra corymbosa Peter Rubtzoff 1955-9-9 2121 Sonoma Bodega Head Marsh 2 Comment
  UC727734 Image available Delphinium bakeri Milo S. Baker 1946-4-25 11337 Sonoma Coleman Val., West of Occidental on Hedrin Ranch Comment
  RSA264777  Delphinium hesperium Peter Rubtzoff 1974-5-25 7465 Sonoma Hwy 116, 2 miles W of Forestville Road cut (of Hwy 116) in forest Comment
  UCSB31450  Delphinium hesperium Townsend, J. 1977-5-30 Sonoma East side Russian river; about 2 miles south of Guerneville 335 Comment
  UC912568  Delphinium hesperium subsp. hesperium Herbert L. Mason 1934-4-28 8088 Sonoma Jensen's Ranch Comment
  UC1334519  Delphinium hesperium subsp. hesperium G. A. L. Mehlquist and J. A. Jenkins 1940-5-28 3 Sonoma 100 yds sw of Route 29 Mark West Mineral Spring Comment
  CAS-BOT-BC10093  Delphinium luteum Milo S. Baker 1926-4-14 186 e Sonoma Between Bodega and the Bay Comment
  HSC25040  Delphinium luteum R. F. Good 1962-4-19 30 Sonoma 2 mi. W of Petaluma on D St., extension toward Pt. Reyes 46 Comment
  UC1126021  Delphinium luteum H. S. Yates 1934-4-21 3798 Sonoma near Bodega; Sebastopol Quadrangle Comment
Read comments
Sep 30 2007
  CAS-BOT-BC8006  Delphinium nudicaule A. A. Heller; H. E. Brown 1902-3-12 5046 Sonoma Sonoma Creek, Eastern Base of Mt. Hood Comment
  CAS-BOT-BC9898  Delphinium nudicaule Mary Hallett 1927-4-1 s.n. Sonoma Graton Comment
  JEPS128285  Delphinium nudicaule Roger Raiche 2005-4-9 007 .05 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  POM150547  Delphinium nudicaule A. A. Heller 1903-4-23 s.n. Sonoma Fort Ross. Comment
  UC635362  Delphinium nudicaule H. L. Mason 1930-6-1 5643 Sonoma mouth Gualala River Comment
  CAS-BOT-BC8012  Delphinium nudicaule Joseph Whipple Congdon 1880-5-2 s.n. Sonoma Cleveland's Creek Comment
  CAS-BOT-BC8013  Delphinium nudicaule F. Krauss 1895-5-6 s.n. Sonoma near Franza Valley Comment
  CAS-BOT-BC7766  Delphinium variegatum Alice Eastwood 1921-4-24 10320 Sonoma Santa Rosa Comment
  CAS-BOT-BC26766  Dendromecon myrtifolia Amos Arthur Heller; H. E. Brown 1902-5-29 5618 Sonoma Mt. Hood Comment
  UC1126351  Dendromecon rigida E. Armstrong 1934-3-26 941 Sonoma 3 mi w Camp Meeker; Sebastopol Quadrangle 91 Comment
  UC1126379  Dendromecon rigida J. B. Spring 1932-7-7 96 Sonoma 2/5 mi sw Veeder Mountain; Napa Quadrangle 609 Comment
  SEINET10620911 Image available Dendromecon rigida A. Arthur Heller, H. E. Brown 1902-5-29 Heller 5618 Sonoma Mt. Hood. Comment
  CAS-BOT-BC583  Dendromecon rigida subsp. rigida Catherine Best 1981-4-4 s.n. Sonoma Staetz Lane, 3 miles north of Occidental. Comment
  UCD63753  Deschampsia cespitosa subsp. holciformis P. B. Kennedy 1914-10-1 Sonoma Del Mar Ranch. Comment
  CAS-BOT-BC201643  Deschampsia danthonioides John Thomas Howell; Walter Knight; Irja Knight 1987-6-4 6242 Sonoma Todd Road Preserve 24 Comment
  CAS-BOT-BC201649  Deschampsia danthonioides W. L. Jepson 1911-4-30 4183 Sonoma Sonoma Valley Comment
  CAS-BOT-BC376437  Deschampsia danthonioides Greg de Nevers 1997-5-13 10999 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. On Weimar Flat. 400 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-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-BC253653  Dichanthelium acuminatum subsp. acuminatum Helen D. Geis 1902-7-1 s.n. Sonoma Russian River Comment
  CAS-BOT-BC254479  Dichanthelium acuminatum subsp. acuminatum John Thomas Howell 1945-7-18 21322 Sonoma Pitkin Marsh Comment
  CAS-BOT-BC221849  Dichanthelium acuminatum subsp. fasciculatum Mary P. Wells 1984-6-8 346 Sonoma Site for North Firestation, east of Highway #1. The Sea Ranch Comment
  UCD151080  Dichelostemma James A. Neilson Jr. 1973-6-3 2990 Sonoma Mayacmas Mountains. The Geysers. Site I. (Location and elevation of Site I estimated from Neilson 2994 which has Township/Range data and says that Site I is in Geyser Canyon. Coordinates estimated by label maker.) 853 Comment
  UC1084355  Dichelostemma capitatum G. Thomas Robbins 1937-3-25 13 Sonoma 8-10 mi e Santa Rosa; Santa Rosa Creek Canyon Comment
  CAS-BOT-BC502206  Dichelostemma capitatum G. DeNevers 1981-4-25 859 Sonoma Mark West Creek and Leslie Creek confluence, roadside. Pepperwood Ranch Comment
  CAS-BOT-BC502215  Dichelostemma capitatum A. A. Heller; H. E. Brown 1902-3-14 5065 Sonoma near Windsor Comment
  SEINET7067346  Dichelostemma capitatum subsp. capitatum A. G. Vestal 1947-5-16 s.n. Sonoma About 4.8 miles east of Windsor and northwest of Mark West Springs. Coordinate datum: NAD27. UTM Zone 10, 523072mE, 4267195mN. Comment
  POM169358  Dichelostemma capitatum subsp. capitatum A. A. Heller, H. E. Brown 1902-3-17 5087 Sonoma Hills 8 miles northeast of Santa Rosa Comment
  CAS-BOT-BC500685  Dichelostemma pulchellum Peter H. Raven 1955-4-23 8281 Sonoma 2 mi SE of Bennett Mt. Comment
  CAS-BOT-BC176147  Digitaria Peter Rubtzoff 1971-8-23 6643 Sonoma Stony Point Road, just S of Hwy. 116. Comment
  CAS-BOT-BC183608  Digitaria Peter Rubtzoff 1965-9-5 5637 Sonoma Forest Hills (5.5 miles E of Guerneville). Comment
  CAS-BOT-BC183610  Digitaria Peter Rubtzoff 1971-8-23 6655 Sonoma Meacham Road, 0.35 mi. S of Stony Point Road. Comment
  UCD64005  Digitaria sanguinalis Collector Unknown 1941-11-1 Sonoma Santa Rosa Cr. by old S.P. R.R. Comment
  CAS-BOT-BC152038  Diplacus aurantiacus A. A. Heller; H. E. Brown 1902-4-11 5258 Sonoma Bodega Bay Comment
  UC72487  Disporum hookeri Milo S. Baker 1898-4-2 Sonoma road between Forestville and Guerneville Comment
  HSC17854  Dodecatheon hendersonii R. Spellenberg, D. Sutherland, A. Sylvester 1966-3-26 1327 Sonoma 1 mi. NW of Big Geysers Comment
  HSC17868  Dodecatheon hendersonii R. F. Good 1962-4-20 23 Sonoma 2 mi. W of Petaluma on D St. Extension toward Pt. Reyes: Sonoma Mtn. Coastal Range 46 Comment
  CAS-BOT-BC154162  Downingia concolor var. concolor Peter Rubtzoff 1966-5-29 5738 Sonoma Laguna de Santa Rosa, N of Sebastopol (near Occidental Road). Comment
  JEPS14426  Downingia concolor var. concolor F. T. Bioletti 1891-5-9 Sonoma Sonoma Comment
  JEPS19382  Downingia concolor var. concolor G. Thomas Robbins 1937-5-23 179 Sonoma near Wright School (along road between Sebastopol and Santa Rosa) Comment
  UC1001278  Downingia concolor var. concolor W. L. Jepson 1921-5-6 9189 Sonoma Sonoma Valley Comment
  UC28993  Downingia concolor var. concolor F. T. Bioletti May 1892 Sonoma Shellville Comment
  UC890619  Downingia concolor var. concolor Alice Eastwood and John Thomas Howell 1936-5-19 2508 Sonoma 2 mi n Windsor Comment
  UCR279876  Downingia concolor var. concolor Peter Rubtzoff 1969-5-3 6024 Sonoma Laguna de Santa Rosa, east of Sebastopol 21 Comment
  RSA298993  Downingia concolor var. concolor W. L. Jepson 1921-6-2 9301 Sonoma Windsor. Comment
  RSA47585  Downingia concolor var. concolor L. Beane, Lois E. James 1949-5-16 1948 Sonoma About 3 miles S of Healdsburg Comment
  JEPS78860  Drymocallis glandulosa var. wrangelliana Edward Lee 1936-6-8 2221 Sonoma near entrance Bohemian Grove; near entrance Bohemian Grove Comment
  CAS-BOT-BC71021  Dryopteris arguta Walter Knight; Irja Knight 1963-12-27 460 Sonoma Pine Flat Road Comment
  CAS-BOT-BC71013  Dryopteris arguta Dorothy Scherer 1997-5-7 096 Sonoma Along path south side of Fort Ross Cr. halfway from Hwy 1 to ocean, Fort Ross State Historic Park 36 Comment
  RSA0021585  Dryopteris arguta M. Bourell, Alva Day, George Lindsey 1982-6-25 1813 Sonoma CAS Pepperwood Ranch. 6 miles east of Santa Rosa. 366 Comment
  CAS-BOT-BC536739  Duchesnea indica Mary P. Wells 1984-5-1 254 Sonoma Near Humbug creek south of Calistoga Rioad, Hood Mt. Range. Comment
  CAS-BOT-BC428178  Dudleya cymosa subsp. cymosa A. A. Heller 1940-5-10 15609 Sonoma Along Wheatfield Fork of the Guala [Gualala] River on the Stewart Point-Skagg's Springs road. Comment
  UC1015407  Dudleya farinosa Jack Whitehead 81 Sonoma Bodega Park Comment
  CAS-BOT-BC208555  Echinochloa crus-galli John Thomas Howell; Walter Knight; Irja Knight 1986-10-9 6283 Sonoma Llano Road between Gravenstein Hwy. and Todd Road near sewage plant. Comment
  SEINET11690150  Echinochloa crus-galli W. Knight, Knight, I.; Howell, J. T. 1987-1 6283 Sonoma Llano Road between Gravenstein Hwy & Todd Road near sewage plant 20 Comment
  UCD150856  Elatine brachysperma Ayzik Solomescsh 2009-5-14 s.n. Sonoma 2.3 km. southeast of city of Sebastopol. Santa Rosa Plain, Cooper Site, pool 1. Elevation estimated from Google Earth by label maker. 22 Comment
  CAS-BOT-BC257690  Eleocharis Peter Rubtzoff; Nancy Harrison 1974-9-7 7880 Sonoma Hinebaugh Creek in Rohnert Park, east of Commerce Blvd. Comment
  CAS-BOT-BC261655  Eleocharis Peter Rubtzoff; Nancy Harrison 1974-5-26 7478 Sonoma Vernal pool on Bennett Valley Road, 4.25 miles west of Glen Ellen. Comment
  UCD164985  Eleocharis Peter Rubtzoff; Nancy Harrison, Ruth Hass, Charles Quibell 1974-8-31 7849 Sonoma Kenwood Marsh. Comment
  UCD165782  Eleocharis Peter Rubtzoff 1972-8-26 6858 Sonoma Laguna, Chileno Valley. Comment
  CDA13127  Eleocharis acicularis G. F. Hrusa, R. Gross 1996-6-3 13062 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
  CAS-BOT-BC113739  Eleocharis acicularis var. occidentalis Peter Rubtzoff 1951-7-21 499 Sonoma Pitkin Marsh, near Forestville. Northern half of Lower Marsh. Comment
  CAS-BOT-BC113733  Eleocharis acicularis var. occidentalis Peter Rubtzoff 1955-7-30 2002 Sonoma Bennett Mtn. Lake. Comment
  CAS-BOT-BC112980  Eleocharis macrostachya Catherine Best 1981-8-22 s.n. Sonoma At the pond about 2 miles morth of Occidental on Stoetz Lane Comment
  UCD49742  Eleocharis palustris S. Galen Smith; Malcolm A. Nobs 1949-8-1 1113 Sonoma Bog 2 miles east of Stewart's Point on road to Geyserville, Sonoma County. Comment
  CAS-BOT-BC112662  Eleocharis parvula Peter Rubtzoff; Vanette Bunyan 1973-8-25 7257 Sonoma Lower Salmon Creek Marsh. Just east of Hwy 1. Comment
  CAS-BOT-BC112664  Eleocharis parvula Peter Rubtzoff 1962-8-3 5026 Sonoma Lower Salmon Creek Marsh. Comment
  CAS-BOT-BC112203  Eleocharis radicans Peter Rubtzoff 1956-9-21 2933 Sonoma Vacation Beach, near Guerneville. Sancy beach of Russian River. Comment
  CAS-BOT-BC112166  Eleocharis radicans Peter Rubtzoff 1951-7-14 446 Sonoma Southern half of the Lower Marsh. Comment
  CAS-BOT-BC213787  Elymus X hansenii G. DeNevers 1981-6-15 1515 Sonoma Pepperwood Ranch, 1st road cut on Franz Valley Road Comment
  RSA126906  Elymus glaucus H. S. Yates 1934-4-22 3837 Sonoma Near Petrified Forest; Calistoga 244 Comment
  UCD160975  Elymus glaucus James A. Neilson Jr. 1975-7-8 3408 Sonoma Mayacmas Mountains. Socrates Mine. (Elevation and coordinates estimated by label maker.) 914 Comment
  CAS-BOT-BC203720  Elymus glaucus subsp. glaucus G. DeNevers 1981-5-12 1133 Sonoma Pepperwood Ranch. N arm of Garrison Canyon Comment
  CAS-BOT-BC162054  Elymus lanceolatus subsp. lanceolatus R. D. Stone 1983-6-14 543 Sonoma Headwaters of Squaw Creek drainage near ridgeline, ca. 1.2 mile northwest of Geyser Rock. 1021 Comment
  UCD62508  Elymus multisetus David L. Morgan 1956-5-15 Sonoma 3 mi. W. of Petaluma on 'I' st. Ext. Comment
  UCD164990  Epilobium Peter Rubtzoff; Nancy Harrison 1974-9-7 7861 Sonoma Hinebaugh Creek in Rohnert Park, W of Commerce Blvd. Comment
  UCR244511  Epilobium campestre Peter Rubtzoff 1962-7-6 4976 Sonoma Coast Range, Laguna de Santa Rosa near Trenton Road [south of Woolsey Road] 21 Comment
  CAS-BOT-BC166619  Epilobium canum subsp. canum John I. Carlson 1917-7-23 s.n. Sonoma Preston Comment
  CAS-BOT-BC262988  Epilobium ciliatum subsp. ciliatum Peter Rubtzoff 1954-6-20 1507 Sonoma Guerneville Marsh. Comment
  UCR248960  Epilobium ciliatum subsp. ciliatum Peter Rubtzoff 1955-7-24 1985 Sonoma Forestville Marsh 71 Comment
  SBBG5065  Epilobium ciliatum subsp. watsonii H. and M. Dearing 1939-5-14 3365 Sonoma Bodega State Park [Bodega Dunes State Beach] Comment
  UCD158775  Epilobium ciliatum subsp. watsonii James A. Neilson Jr. 1974-7-10 2814 Sonoma Mayacmas Mountains, 1/4 mi. south of Geyser Rock area. (Elevation estimated by label maker using Google Earth.) 1027 Comment
  UCR248946  Epilobium ciliatum subsp. watsonii Peter Rubtzoff 1962-6-21 4937 Sonoma Laguna de Santa Rosa area, NE of Graton, east of Laguna Rd. 21 Comment
  UCR244514  Epilobium densiflorum Peter Rubtzoff 1969-8-26 6154 Sonoma On River Road, c. 3 miles west of Fulton 27 Comment
  POM256111  Epilobium hallianum Keith Wagnon 1940-1 MSB- 9587 Sonoma Perry s Marsh, 2 miles north of Sebastopol on highway (Gravenstein opposite Bennett s Nursery). Comment
  JEPS128204  Epilobium minutum Roger Raiche 2000-4-30 052 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UC19963  Epilobium torreyi H. N. Bolander 1867-1 6535 Sonoma Cloverdale; ; Cloverdale, Sonoma Co. Comment
  UC4493  Epipactis gigantea F. T. Bioletti 1892-7-5 Sonoma Comment
  RSA790976  Equisetum Peter Rubtzoff 1973-9-8 7302 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC57047  Equisetum arvense Peter Rubtzoff 1958-4-26 3601 Sonoma Laguna de Santa Rosa east of Sebastopol Comment
  RSA785850  Equisetum hyemale var. affine Peter Rubtzoff 1961-10-23 4785 Sonoma Laguna de Santa Rosa area NE of Graton. Comment
  CAS-BOT-BC57654  Equisetum telmateia J. W. Congdon 1880-4-13 s.n. Sonoma Santa Rosa Road Comment
  CAS-BOT-BC57655  Equisetum telmateia Dorothy Scherer 1996-3-16 006 Sonoma West of Hwy 1 and south side of Kolmer Gulch, Fort Ross State Historic Park 10 Comment
  UC1151492  Equisetum telmateia subsp. braunii H. E. Brown and A. A. Heller 1902-3-27 5161 Sonoma w base Mt. Hood Comment
  UCD135599  Equisetum telmateia subsp. braunii Frederica Bowcutt 1997-7-18 2180 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, West Bear Ck. 365 Comment
  RSA309328  Equisetum telmateia var. braunii Edward Lee, W. A. Setchell 1936-6-7 2174 Sonoma Trail No. 10, Bohemian Grove. Comment
  RSA511283  Equisetum telmateia var. braunii F. Sibal 1965-5-29 338 Sonoma Hwy 1 between Anchor Bay and Gualala. 152 Comment
  CAS-BOT-BC312697  Eragrostis Peter Rubtzoff 1970-9-2 6357 Sonoma Russian River bottom at Mirabel Park. Comment
  UC1025040  Eragrostis cilianensis Leo Whitney 1935-10-2 3634 Sonoma Santa Rosa Comment
  CAS-BOT-BC182752  Eragrostis mexicana subsp. virescens Peter Rubtzoff 1953-11-1 1442 Sonoma Vacation Beach, near Guerneville. Comment
  UCD63537  Eragrostis mexicana subsp. virescens Freed W. Hoffman 1943-9-14 2166 Sonoma Near Guerneville. Comment
  CAS-BOT-BC284043  Eragrostis minor Peter Rubtzoff 1958-8-30 3931 Sonoma Vacation Beach 1.5 mile below Guerneville, bank of Russian River Comment
  RSA785229  Erechtites glomeratus Peter Rubtzoff 1960-10-29 4577 Sonoma Bodega Harbor Marsh. Comment
  RSA785230  Erechtites glomeratus Peter Rubtzoff 1954-6-20 1514 Sonoma Mays Canyon, ca. 0.5 mi SE of Guerneville. Comment
  CAS-BOT-BC291252  Erechtites minimus Roxana S. Ferris 1937-8-18 9377 Sonoma Near mouth of Salmon Creek on Bodega Bay Comment
  UC1563955  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
  JEPS19225  Ericameria arborescens Willis L. Jepson 1893-9-23 Sonoma Mt. St. Helena Napa River Basin, Mt. St. Helena 914 Comment
  SEINET12537284  Ericameria ericoides Jennifer S. Kluse 2010-1 3 Sonoma University of California, Bodega Bay Marine Laboratory; Ridge of dune directly in front of Marine Lab main building.; Bodega Bay Marine Lab Comment
  CAS-BOT-BC293627  Erigeron biolettii H. M. Hall 1909-6-25 8518 Sonoma Guernewood Park Comment
  CAS-BOT-BC295123  Erigeron glaucus L. Beane; Lois E. James 1949-5-11 2072 Sonoma Between Fort Ross and Jenner Comment
  UCD132008  Erigeron glaucus Mary M. Hektner; Sue Dakuzaku, Cathy Hendel 1974-6-21 040 Sonoma Unit 2 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC300249  Erigeron reductus var. angustatus G. DeNevers 1981-6-6 1451 Sonoma Pepperwood Ranch. Franz Valley Road Comment
  CAS-BOT-BC300253  Erigeron reductus var. angustatus Steve Edwards 1984-7-22 s.n. Sonoma Along Bohemian Hwy. N. of Camp Meeker Comment
  HSC100973  Erigeron serpentinus Peter Warner 2011-8-10 224 Sonoma Jenner Headlands Property, Upper Russian Gulch Pasture, N of power lines. 227 Comment
  UC75653  Eriodictyon californicum Milo S. Baker 1898-6-11 Sonoma Little Sulphur Creek Comment
  SEINET12320783  Eriodictyon californicum W. Knight, Knight, I. 1981-1 3974 Sonoma 3.1 mi up Cavedale Rd from junction of St Rt 12 Comment
  UC196696  Eriogonum latifolium Charlotte M. Hoak 1912-8-8 Sonoma mouth of Russian River Russian River Comment
  RSA197065  Eriogonum latifolium Noel Holmgren, James L. Reveal 1966-6-6 2648 Sonoma Just north of Ocean View. On bluff above shore line (form away from immediate coastal influence). Comment
  CDA30996  Eriogonum luteolum D. G. Kelch, Troy McGregor 2010-8-22 10 .356 Sonoma Nr Peak of Geyser Peak Rd. 0 Comment
  UC1478045  Eriogonum nervulosum Charlie Patterson Jun 16 1980-Jun 17 1980 Sonoma ca. 1 1/2 mi e Socrates Mine (near Lake Co. line) Comment
  CAS-BOT-BC261687  Eriogonum nudum var. nudum Mary P. Wells 1985-7-7 544 Sonoma King's Ridge Road, north of Cazadero Comment
  CAS-BOT-BC261698  Eriogonum nudum var. nudum David L. Morgan 1955-7-28 s.n. Sonoma 5 miles west of Petaluma Comment
  UCSB19782  Eriophyllum lanatum Richardson, A. 1961-6-16 Sonoma Along Sweetwater Springs Rd. 1 mi. beyond turn to Armstrong Redwoods State Park north of Gurneville Comment
  CDA5239  Eriophyllum lanatum var. achilleoides G. D. Barbe 1982-5-27 3619 Sonoma 3.6 miles east of Stewarts Point (Highway 1), on Skaggs Spring Road. 0 Comment
  UCD131484  Eriophyllum lanatum var. achilleoides Frederica Bowcutt 1996-5-24 2169 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Along Adobe Canyon Road W of kiosk. 670 Comment
  CAS-BOT-BC301278  Eriophyllum lanatum var. arachnoideum A. A. Heller; H. E. Brown 1902-4-11 5262 Sonoma Bodega Bay Comment
  CAS-BOT-BC301285  Eriophyllum lanatum var. arachnoideum Walter Knight; Irja Knight 1963-10-27 396 Sonoma Spring Mt. Road Comment
  CAS-BOT-BC301292  Eriophyllum lanatum var. arachnoideum John Thomas Howell 1930-6-8 5292 Sonoma 8.5 miles n. of Bodega Bay Comment
  CAS-BOT-BC301294  Eriophyllum lanatum var. arachnoideum John Thomas Howell 1930-7-27 5399 Sonoma 1 mile north of Fort Ross Comment
  SEINET7067337  Eriophyllum lanatum var. arachnoideum A. G. Vestal 1947-5-16 s.n. Sonoma About 6.7 miles East of Windsor on Mendocino Avenue. Coordinate datum: NAD27. UTM Zone 10, 523728mE, 4258330mN. Comment
  UCD103274  Erodium moschatum Robert F. Thorne 1965-4-19 34264 Sonoma Cotati, Waters Ranch. 30 Comment
  CDA28602  Eryngium aristulatum G. F. Hrusa, A. Buckmann (DFG) 1996-10-5 13582 C Sonoma North Coast Biodiversity Arena; Summit of Mayacmas Range at W end of Diamond Mtn. Rd. +- 2 m. SW of Calistoga. Comment
  UC1307396  Eryngium aristulatum var. aristulatum Peter Rubtzoff 1954-8-12 1695 Sonoma Bennett Mt. Lake Comment
  UC1365627  Eryngium aristulatum var. aristulatum Peter Rubtzoff 1958-7-19 3769 Sonoma e. Sebastopol (Laguna de Santa Rosa); Laguna de Santa Rosa Comment
  UCR224675  Eryngium aristulatum var. aristulatum Ayzik Solomeshch 2009-5-12 s.n. Sonoma Along Bennett Valley Road, between Santa Rosa and Glen Ellen 189 Comment
  CDA38334  Eryngium aristulatum var. aristulatum Bremner 1929-9-2 s.n. Sonoma [no additional data] 0 Comment
  RSA290418  Eryngium aristulatum var. aristulatum Yusuf Sheikh, Peter Rubtzoff 1971-7-20 504 Sonoma Drying vernal pool along Todd Road, open country NW of Cotati Comment
  RSA80397  Eryngium aristulatum var. aristulatum F. W. Peirson 1925-8-8 6337 Sonoma 6 miles south of Santa Rosa Comment
  RSA93411  Eryngium aristulatum var. aristulatum Milo S. Baker 1954-8-12 13036 Sonoma Coney Lake Kenwood on Coney Ranch Comment
  UC1122970  Eryngium armatum H. S. Yates 1937-8-22 6867 Sonoma 2 mi. s.e. Forestville; Sebastopol Quad. Comment
  UCD150837  Eryngium armatum 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
  CDA20458  Eryngium armatum P. Lane 2003-7-25 PDR P 092137 Sonoma Northwestern California; 1301 Ferguson Rd, Sebastopol. 0 Comment
  POM287755  Eryngium armatum Lyman Benson 1930-6-18 2166 Sonoma South of Santa Rosa. 61 Comment
  CAS-BOT-BC54763  Erysimum franciscanum D. E. Breedlove 1961-12-31 1441 Sonoma At mouth of Russian River. 3 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
  CAS-BOT-BC153628  Erythranthe inodora Peter Rubtzoff 1955-7-10 1950 Sonoma Duncans Mills Marsh Comment
  CAS-BOT-BC383151  Erythranthe nasuta David B. Lowry 2005-5-9 KRR Sonoma On King's Ridge Road 107 Comment
  SEINET9633973 Image available Erythronium californicum Fred W. Hoffman 1947-4-20 1866 Sonoma Near Mercury, Geysers to Healdsburg. Comment
  CAS-BOT-BC133297  Erythronium helenae F. H. Utech; W. Knight; I. Knight 1986-5-15 86 -199 Sonoma The Geysers, ca 14.0 mi ESE of Preston and US hwy 101 on Geysers Road 800 Comment
  SEINET12044880  Erythronium helenae E. I. Applegate 1934-1 8855 Sonoma headwaters of Sulpher Creek, opposite Old Sonoma quicksiver mine 610 Comment
  SEINET12049790  Erythronium helenae F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -199 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd 800 Comment
  SEINET12057640  Erythronium helenae F. H. Utech, Knight, W.; Knight, I. 1986-5-15 86 -199 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd., between Jimtown & Mercuryville 800 Comment
  UCD158723  Eschscholzia californica James A. Neilson Jr. 1974-7-10 2834 Sonoma Mayacmas Mountains. Little Geysers well # 2. 731 Comment
  SD124796  Eschscholzia californica L. F. La Pre 1986-7-29 Sonoma Socrates Mine, ca. 9.0 miles eastnortheast of Geysserville. 914 Comment
  OBI69876  Eucalyptus globulus Jenn Yost and Matt Ritter, Matt Ritter 8-Apr 52 Sonoma Hwy 101 S, Todd Rd, exit, Santa Rosa, side of fwy Comment
  RSA135387  Euonymus occidentalis Volney Rattan 1877-6-14 s.n. Sonoma Guerneville. Comment
  UCD107426  Euonymus occidentalis Dan Axelrod 1931-7-10 s.n. Sonoma Ward Creek, 3 miles no. of Cazadero on Ft. Ross Road. Comment
Read comments
Feb 6 2013
  UC869900  Euonymus occidentalis var. occidentalis K. Wagnon May 1939 220 Sonoma 5 mi. w. of Sebastopol (1/8 mi. n.e. of Wagnon Ranch, along Jonive Creek) Comment
  CAS-BOT-BC294705  Euphorbia Peter Rubtzoff 1971-7-23 6610 Sonoma Laguna, Chileno Valley. Comment
  JEPS117124  Euphorbia oblongata Peter Warner 2010-5-6 142 Sonoma Annadel State Park, North Burma Trail, ~500 m W of junction with Richardson Trail; along trail and downslope Comment
  UC469051  Eurybia radulina Miss C. M. Hoak 1912-8-1 Sonoma Monte Rio Comment
  CAS-BOT-BC310743  Euthamia occidentalis Peter Rubtzoff 1951-9-2 700 Sonoma Pitkin Marsh, near Forestville. Southern half of Lower Marsh Comment
  JEPS26040  Euthamia occidentalis Lewis S. Rose 1960-9-14 60094 Sonoma 2 mi e Graton; Laguna de Santa Rosa 15 Comment
  UCR254754  Euthamia occidentalis Peter Rubtzoff 1969-8-26 6155 Sonoma On River Road, c. 3 miles west of Fulton 27 Comment
  CAS-BOT-BC354321  Euthamia occidentalis Peter Rubtzoff 1958-9-6 3987 Sonoma Laguna de Santa Rosa east of Sebastopol. Comment
  RSA0025192  Euthamia occidentalis Peter Rubtzoff 1961-9-20 4748 Sonoma Americano Creek, 0.9 mi west of Bloomfield. Comment
  RSA0025193  Euthamia occidentalis Peter Rubtzoff 1969-8-26 6155 Sonoma Marsh on River Road ca. 3 mi west of Fulton. Comment
  CAS-BOT-BC418825  Fagopyrum esculentum H. K. Wagnon 1988-8-8 1797 Sonoma Spring Lake Park and environs. Adjacent to Montgomery Drive 67 Comment
  UCR249336  Festuca arundinacea Peter Rubtzoff 1962-6-13 4911 Sonoma Freestone Marsh 79 Comment
  RSA123477  Festuca californica var. californica H. S. Yates 1934-4-21 s.n. Sonoma 2 miles north of County Farm. 244 Comment
  CAS-BOT-BC278395  Festuca elmeri K. Wagnon 1939-5-22 217 Sonoma Top of Wagnon rock quarry, five miles west of Sebastopol Comment
  JEPS112968  Festuca idahoensis Dean W. Taylor 1994-5-4 14212 Sonoma ca. 2 mi SW of Occidental; at junction of Bittner Road and Joy Road, 249 Comment
  UCD160755  Festuca idahoensis James A. Neilson Jr. 1975-5-23 3213 Sonoma Truit Creek on Big Sulphur Creek. (Elevation and coordinates estimated by label maker.) 388 Comment
  UC1024771  Festuca occidentalis Leo Whitney 1935-4-14 2257 a Sonoma near Occidental Comment
  UCD66117  Festuca occidentalis Beecher Crampton 1955-6-17 2964 Sonoma 2 miles east of Fort Ross. Comment
  CAS-BOT-BC278888  Festuca occidentalis K. Wagnon 1939-5-14 195 Sonoma Near Wagnon home about five miles west of Sebastopol Comment
  CAS-BOT-BC279076  Festuca rubra D. E. Breedlove 1980-6-28 44795 Sonoma Pepperwood Ranch W of Knights Valley Comment
  CAS-BOT-BC279080  Festuca rubra John Thomas Howell; Walter Knight; Irja Knight 1987-5-20 6241 Sonoma Todd Road Preserve 24 Comment
  UC1153832  Festuca subuliflora Beecher Crampton 1955-6-15 2961 Sonoma 2 mi e Fort Ross Comment
  CAS-BOT-BC354074  Filago Peter Rubtzoff; H. A. Froebe 1971-5-30 6480 Sonoma Vernal pool, 4.25 miles west of Glen Ellen on Bennett Valley Road. Comment
  RSA177900  Filago californica R. F. Thorne 1965-4-20 34352 Sonoma On Cavedale Road, 0.5 miles up from State Hwy 12, ca. 4 miles N of Sonoma. 244 Comment
  SBBG2924  Fragaria chiloensis H. and M. Dearing 1939-5-14 3357 Sonoma Bodega State Park [Bodega Dunes State Beach] Comment
  CAS-BOT-BC53268  Frangula californica subsp. californica A. A. Heller 1902-7-8 5816 Sonoma Between Healdsburg and Geyserville Comment
  UCD112779  Frangula californica subsp. tomentella G. F. Hrusa; T. D. Wilfred 1995-12-3 12485 Sonoma W-facing slope of main ridge running SW from Chalk Mountain. Foote Ranch property, NW base of Mt. St. Helena. 450 Comment
  CAS-BOT-BC223363  Fraxinus John H. Thomas 1955-5-22 5183 Sonoma Along St. Helena Road and West Creek, 1.2 miles west of Sonoma-Napa County line, about 6 miles from St. Helena 457 Comment
  CAS-BOT-BC130186  Fritillaria affinis Stewart Wade 1927-4-1 s.n. Sonoma Healdsburg Comment
  UCD151239  Fritillaria affinis James A. Neilson Jr. 1974-4-30 2728 Sonoma Mayacmas Mountains, upper Squaw Creek. (Elevation estimated using Google Earth by label maker.) 975 Comment
  UC3632  Fritillaria recurva Jepson 1893-5-5 Sonoma Mount St. Helena Comment
  CAS-BOT-BC508136  Fritillaria recurva J. P. Moore 1877-3-1 350 Sonoma Skaggs Springs Comment
  JEPS128248  Galium aparine Roger Raiche 2000-5-28 114 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  RSA264745  Galium aparine Peter Rubtzoff 1964-7-7 5395 Sonoma Duncan Mills Marsh. Comment
  UCD121640  Galium aparine Frederica Bowcutt 1994-6-12 1851 b Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Along Pony Gate Trail along east west trending stretch before entering oak woodland, out of view of kiosk and campground. 420 Comment
  UCD67958  Galium aparine Wesley Ebert 1977-4-9 17 Sonoma Penngrove, 6000 Soldiers Ln. on the W. side of Sonoma Mt. on E. facing slope. Heavily shaded by Umbellularia californica and Quercus agrifolia. Growing in rich moist humus. Plant with sticky texture on stems and leaves due to hairs. White flowers. 457 Comment
  CDA15739  Galium californicum subsp. californicum G. F. Hrusa 1998-6-14 14591 Sonoma Knights Valley; Foote Ranch, immed. N of corner Ida Clayton Rd. & Hwy. 128, Knights Valley. Comment
  RSA47580  Galium muricatum L. Beane, Lois E. James 1948-5-11 2071 Sonoma Between Fort Rose and Jenner. Comment
  SD123748  Galium parisiense J. C. Roos 1950-7-22 4875 Sonoma Sand bar along stream bed 2 miles east of Duncan Mills 60 Comment
  JEPS6610  Galium porrigens var. porrigens Willis L. Jepson 1892-8-7 Sonoma to Knights; Alexand Valley Grade Comment
  UC480618  Galium porrigens var. porrigens Carl Meyer 1928-3-3 307 Sonoma Santa Rosa Comment
  RSA264750  Galium trifidum Peter Rubtzoff 1954-8-13 1713 Sonoma Bodega Head Marsh. Comment
  RSA790991  Gamochaeta ustulata Peter Rubtzoff 1974-5-25 7458 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC303496  Gamochaeta ustulata G. DeNevers 1981-5-23 1310 Sonoma Hansel's cow pasture Comment
  CAS-BOT-BC303505  Gamochaeta ustulata J. H. Thomas 1976-6-16 18274 Sonoma Southern part of Sea Ranch, NW part of county, about 7 miles S of Gualala 30 Comment
  RSA790993  Gamochaeta ustulata Peter Rubtzoff 1963-6-22 5186 Sonoma Bennett Mountain Lake. Comment
  RSA790994  Gamochaeta ustulata Peter Rubtzoff 1962-6-19 4923 Sonoma Occidental Marsh. Comment
  CAS-BOT-BC311820  Gastridium Peter Rubtzoff; Nancy Harrison 1976-6-18 8649 Sonoma False Lake Meadow area, Annadel State Park. Comment
  UC1023580  Gastridium ventricosum Virginia Bufford 1936-5-21 361 Sonoma Geysers-Cloverdale Rd. Comment
  UC38571  Gastridium ventricosum A. B. Leckenby July 1896 Sonoma Petaluma Comment
  JEPS102270  Gaudinia fragilis Jane Valerius and Dianne Lake 2002-6-25 s.n. Sonoma Cloverdale; scraped area NW of intersection of Asti Road and South Cloverdale exit ramp from Hwy 101. Comment
  CAS-BOT-BC58943  Gaultheria shallon Walter Knight; Irja Knight 1964-2-27 559 Sonoma 6 mi. N. Stewart's Point Comment
  CAS-BOT-BC208031  Genista monspessulana Elizabeth Parsons Hawver 1915-6-3 s.n. Sonoma Skaggs Springs Comment
  CAS-BOT-BC193258  Genista monspessulana Alice S. M. McKenzie 1981-1-11 s.n. Sonoma Coast between Russian and Gualala Rivers; Beside Hwy. 1; in Timber Cove area. Comment
  SD88311  Geranium core-core Darley F. Howe 1972-5-3 Sonoma Ocean bluff 2.5 miles north of Jenner Comment
  UC1130338  Geranium molle H. S. Yates 1934-4-21 3823 Sonoma near Duncan Mills; Duncan Mills Quad. 60 Comment
  UC1299523  Gilia capitata subsp. capitata Freed W. Hoffman 1946-6-14 595 Sonoma Wild Hog Ridge North Coast Ranges, Mill Creek, Palmer Creek branch (headwaters Mill Creek, Palmer Creek branch) 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
  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
  JEPS69553  Gilia capitata subsp. chamissonis W. S. Cooper 1925-7-25 88 Sonoma Bodega Pt. Comment
  UCD117742  Gilia capitata subsp. pacifica Mary M. Hektner; Cathy Hendel, Sue Dakuzaku 1974-6-21 050 Sonoma Unit 2 Owners' Map, Sea Ranch, near State Highway 1. Comment
  UC726807  Gilia capitata subsp. tomentosa A. A. Heller 1940-5-17 15631 Sonoma immediately e Bodega Bay (on State Highway 1) Comment
  UC124891  Gilia tricolor subsp. tricolor Katharine Brandegee May 1890 Sonoma Mt. St. Helena Comment
  UC1299519  Gilia tricolor subsp. tricolor Freed W. Hoffman 1947-4-3 879 Sonoma near Guerneville (headwaters of Fife Creek on road to Austin Ranch); North Coast Ranges, Fife Creek, near Guerneville Comment
  CAS-BOT-BC266478  Githopsis diffusa Milo S. Baker 1926-1-1 237 A Local Sonoma Side canyon above Kenwood Springs Comment
  UC894568  Glebionis segetum Lewis S. Rose 1938-9-11 38251 Sonoma Bloomfield 30 Comment
  CAS-BOT-BC435014  Glinus lotoides Peter Rubtzoff 1966-9-25 5825 Sonoma Laguna de Santa Rosa east of Graton, betw. Occidental and Guerneville roads. Comment
  SEINET10717790  Glyceria P. Rubtzoff 1964-5-30 Rubtzoff 5324 Sonoma Santa Rosa Creek area about 1 mile east of the Laguna de Santa Rosa. Comment
  RSA177984  Glyceria declinata R. F. Thorne 1965-4-19 34293 Sonoma Near county dump on Stoetz Road off of Harrison Grade ca. 2 miles NNE of Occidental. 183 Comment
  RSA337036  Glyceria declinata Paul But, Peter Rubtzoff 1974-4-6 1005 Sonoma In Kenwood Marsh. Comment
  RSA786605  Glyceria declinata Peter Rubtzoff 1966-4-30 5687 Sonoma North side of Highway 116, 0.5 mile northwest of Stony Point Road crossing. Comment
  UCR25306  Glyceria elata John C. Roos 1955-7-2 6643 Sonoma MIller Ridge. Comment
  CAS-BOT-BC282813  Glyceria leptostachya Peter Rubtzoff 1962-5-30 4850 Sonoma Freestone Marsh Comment
  CAS-BOT-BC282819  Glyceria leptostachya John Thomas Howell 1945-8-14 21390 A Sonoma Perry Marsh Comment
  UCD166179  Glyceria leptostachya Peter Rubtzoff 1969-7-5 6109 Sonoma Pond, 5.25 miles NE of Penngrove, near Lichan Road. Comment
  RSA94607  Glyceria leptostachya Peter Rubtzoff 1951-6-9 187 Sonoma Northern half of Lower Marsh; Pitkin Marsh, near Forestville. Comment
  UCR244672  Glyceria occidentalis Peter Rubtzoff 1964-5-30 5324 Sonoma Santa Rosa Creek area about 1 mile east of the Laguna de Santa Rosa 24 Comment
  CAS-BOT-BC173577  Gnaphalium Peter Rubtzoff 1969-11-2 6207 Sonoma Russian River Bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC173582  Gnaphalium Peter Rubtzoff 1971-10-11 6720 Sonoma Forest Hills, 5.5 miles east of Guerneville. Comment
  UCD166104  Gnaphalium Peter Rubtzoff 1971-9-3 6697 Sonoma Spring Creek Reservoir Area. Comment
  CAS-BOT-BC166779  Gnaphalium chilense Peter Rubtzoff 1955-8-20 2061 Sonoma Bodega Harbor Marsh. Comment
  CAS-BOT-BC251308  Gratiola Peter Rubtzoff 1972-6-11 s.n. Sonoma Laguna, Chileno Valley. Comment
  UCD166115  Gratiola Peter Rubtzoff 1972-5-25 6756 Sonoma Laguna, Chileno Valley. Comment
  UCD158823  Grindelia James A. Neilson Jr.; Teresa A. Sholars 1974-12-28 2896 Sonoma northwest corner of Section 14, The Geysers. (Elevation estimated by label maker using Google Earth.) 472 Comment
  CAS-BOT-BC305174  Grindelia hirsutula P. A. Munz 1936-8-7 14306 Sonoma 2 mi. north of Bodega Comment
  CAS-BOT-BC305187  Grindelia hirsutula Peter Rubtzoff 1951-8-26 680 Sonoma South of Guerneville (Neeley Hill area) Comment
  CAS-BOT-BC305198  Grindelia hirsutula Marcus E. Jones 1931-7-5 29142 Sonoma The Geysers Comment
  CAS-BOT-BC305172  Grindelia hirsutula Mary P. Wells 1983-8-4 183 Sonoma On old path to Gleason's Beach from parking lot south of Duncan's Point Comment
  UC1714869  Grindelia hirsutula Max P. Dunford 1959-10-3 559 Sonoma 1.8 mi NE of on Mark West Springs Road Mark West Springs Comment
  CAS-BOT-BC302250  Harmonia nutans Greg de Nevers 1990-5-1 9662 A Sonoma Pepperwood Natural Preserve. 3450 Franz Valley Road 457 Comment
  JEPS40061  Harmonia nutans R. Kuhn 1914-10-5 Sonoma Sonoma Comment
  CAS-BOT-BC306331  Hedypnois cretica Ella Dales Cantelow 1941-4-14 3509 Sonoma Mouth of Salmon Creek nr. ocean Comment
  RSA800481  Helenium bigelovii Peter Rubtzoff 1961-6-23 4645 Sonoma Bennett Mountain Lake Comment
  RSA94303  Helenium bigelovii Peter Rubtzoff 1951-6-9 155 Sonoma Pitkin Marsh, near Forestville. Northern half of Lower Marsh. Comment
  CAS-BOT-BC262952  Helenium puberulum Peter Rubtzoff 1970-9-3 6373 Sonoma Marsh, off west side of Highway 1, 0.7 miles southeast of Salmon Creek Crossing. Comment
  CAS-BOT-BC262954  Helenium puberulum Peter Rubtzoff 1959-9-19 4286 Sonoma Vacation Beach, near Guerneville, along Russian River. Comment
  RSA800483  Helenium puberulum Peter Rubtzoff 1955-7-31 2014 Sonoma Forestville Marsh. Comment
  RSA800484  Helenium puberulum Peter Rubtzoff 1955-8-13 2043 Sonoma Duncan Mills Marsh. Upper portion of the marsh. Comment
  RSA94283  Helenium puberulum Peter Rubtzoff 1951-9-2 709 Sonoma Northern half of Lower Marsh; Pitkin Marsh, near Forestville. Comment
  SEINET11842951  Helianthella californica F. H. Utech 1986-1 86 -113 Sonoma ca 5 mi NE on Cavedale Road from junction with CA 12 500 Comment
  SEINET11843060  Helianthella californica Unknown 1985-1 RR 50176 Sonoma W of Healdsburg, ridge of W side of Dry Creek Valley, N of Dorman Canyon to Bradford Mt. area 244 Comment
  CAS-BOT-BC314720  Helianthella californica var. californica C. F. Leitholt 1893-6-1 s.n. Sonoma Bennet Valley Comment
  CAS-BOT-BC314736  Helianthella californica var. californica James McMurphy 1909-5-29 s.n. Sonoma Between Geyser Peak and Black Mountain Comment
  UC754291  Helianthus bolanderi R. Bacigalupi 1948-3-6 2853 Sonoma The Geysers, just above the resort. Comment
  CAS-BOT-BC123602  Heliotropium oculatum Amos Arthur Heller 1902-7-8 5813 Sonoma Bank of Russian River at Healdsburg Comment
  UC578052  Helminthotheca echioides H. S. Yates 1935-10-3 5343 Sonoma Santa Rosa Santa Rosa Quad., Santa Rosa 53 Comment
  CAS-BOT-BC258388  Hemizonia Peter Rubtzoff 1973-8-27 7260 Sonoma Upper Green Valley Marsh area. Comment
  CAS-BOT-BC257144  Hemizonia Peter Rubtzoff 1959-6-13 4115 Sonoma Willow Creek Marsh. Comment
  CAS-BOT-BC262975  Hemizonia Peter Rubtzoff 1954-8-3 1646 Sonoma Bodega Head Marsh. Comment
  CAS-BOT-BC305997  Hemizonia Peter Rubtzoff 1969-7-25 6122 Sonoma Vernal pool area, 6.5 miles northeast of Penngrove on Lichau Road. 426 Comment
  UCD166108  Hemizonia Peter Rubtzoff 1971-9-30 6709 Sonoma Laguna, Chileno Valley. Comment
  OBI49651  Hemizonia congesta G. Yatskievych, K. Yatskievych 1988-8-20 88 -160 Sonoma W side of Santa Rosa, just E of jctn with Llano Rd on State Rte 12 to Sebastopol 100 Comment
  RSA94096  Hemizonia congesta J. T. Howell 1945-8-14 21408 Sonoma Perry Marsh Comment
  SD62047  Hemizonia congesta Darley F. Howe 1965-8-3 4101 Sonoma 8.0 miles east of Bodega on Highway 1. Comment
  UC990631  Hemizonia congesta subsp. clevelandii James I. McMurphy 1909-7-10 502 Sonoma hills near Cloverdale Comment
  CAS-BOT-BC306157  Hemizonia congesta subsp. clevelandii James I. McMurphy 1917-9-15 s.n. Sonoma Santa Rosa Comment
  LA203724  Hemizonia congesta subsp. congesta H. M. Hall; 1916-6-23 10241 Sonoma 12 km NW of Petaluma Comment
  CAS-BOT-BC306231  Hemizonia congesta subsp. congesta H. M. Hall 1931-5-26 13079 Sonoma Six miles northwest of Petaluma Comment
  CAS-BOT-BC309675  Hemizonia congesta subsp. lutescens David D. Keck 1933-11-6 2649 Sonoma 2.5 mi. N. of Occidental Comment
  CAS-BOT-BC309697  Hemizonia congesta subsp. lutescens James I. McMurphy 1909-8-8 701 b Sonoma Leddy Station between Santa Rosa and Sebastopol Comment
  JEPS86755  Hemizonia congesta subsp. lutescens Jack and Betty Guggolz 1990-4-30 1038 Sonoma n side intersection of Occidental Road and Facindini Lane Comment
  CAS-BOT-BC309688  Hemizonia congesta subsp. lutescens Walter Knight; Irja Knight; J. T. Howell 1986-10-9 5841 Sonoma Llano Road near sewage disposal plant at Laguna de Santa Rosa 45 Comment
  CAS-BOT-BC309706  Hemizonia congesta subsp. lutescens James I. McMurphy 1909-8-10 717 -D Sonoma About a mile W of Santa Rosa on road to Fulton Comment
  CAS-BOT-BC309715  Hemizonia congesta subsp. lutescens Ella Dales Cantelow 1941-6-7 3575 Sonoma State Hy. 1, 4 mi. n. of Bay Comment
  CDA30997  Hemizonia congesta subsp. luzulifolia D. G. Kelch, Troy McGregor 2010-8-22 10 .352 Sonoma Nr Peak of Geyser Peak Rd. 0 Comment
  CAS-BOT-BC309941  Hemizonia congesta subsp. luzulifolia David D. Keck 1933-11-10 2731 Sonoma 2.3 mi. S.W. of Shellville railroad station Comment
  CAS-BOT-BC309951  Hemizonia congesta subsp. luzulifolia J. McMurphy 1909-5-29 s.n. Sonoma Grade, ridge S. of Geysers Comment
  CAS-BOT-BC309961  Hemizonia congesta subsp. luzulifolia F. G. Krauss 1893-10-16 s.n. Sonoma Petaluma Valley Comment
  RSA81605  Hemizonia lutescens James I. McMurphy 1909-8-9 711 Sonoma Hills between Sonoma and Petaluma. Comment
  SEINET11842958  Hemizonia lutescens F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -242 Sonoma end of Stoetz Road 200 Comment
  POM53601  Hemizonia luzulifolia A. A. Heller 1902-8-20 6054 Sonoma Lagoon at Scbastopol Comment
  UC1212325  Hesperolinon clevelandii Helen K. Sharsmith 1947-5-30 3966 Sonoma s slope of mountain near Grant line; Inner North Coast Ranges, Hood Mountain 243 Comment
  CAS-BOT-BC123115  Hesperolinon spergulinum Henry Nicholas Bolander 1867-6-1 6568 Sonoma Cloverdale Comment
  CAS-BOT-BC149827  Heteromeles arbutifolia Volney Rattan 1877-6-23 s.n. Sonoma Healdsburg Comment
  CAS-BOT-BC149832  Heteromeles arbutifolia Peter Rubtzoff 1952-6-15 1268 Sonoma Fitch Mtn. Grove, near Healdsburg Comment
  CAS-BOT-BC149834  Heteromeles arbutifolia Mary P. Wells 1984-7-21 419 Sonoma Timber Ridge Rd. just No. of Drover's Close, The Sea Ranch Comment
  POM141325  Heteromeles arbutifolia A. A. Heller 1902-7-8 5815 Sonoma Between Healdsburg and Geyserville Comment
  UCD166419  Heterotheca oregona Peter Rubtzoff 1953-11-1 1436 Sonoma Vacation Beach, near Guerneville. Comment
  UCD168047  Heterotheca oregona James A. Neilson Jr. 1983-10-24 4103 Sonoma Mayacmas Mountains, Hummingbird Creek. (Exact location unknown, coordinates estimated by label maker.) Comment
  CAS-BOT-BC311074  Heterotheca oregona var. rudis Walter Knight; Irja Knight 1963-9-1 308 Sonoma 1 mi from US 101 on Sulphur Creek Rd - Cloverdale Comment
  CAS-BOT-BC311162  Heterotheca sessiliflora subsp. bolanderi Carl B. Wolf 1927-9-2 1345 Sonoma 2 miles south of Anchor Cove 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
  CAS-BOT-BC420943  Heuchera micrantha var. diversifolia Mary P. Wells 1984-7-20 384 Sonoma Hot Spot, The Sea Ranch Comment
  CAS-BOT-BC424435  Heuchera pilosissima Catherine Best 1985-5-15 1091 Sonoma Coleman Valley Road about 3 miles W of Occidental Comment
  POM253357  Heuchera pilosissima A. A. Heller 1938-5-14 s.n. Sonoma S end of Bodega Bay Comment
  RSA0062988  Heuchera pilosissima Joseph A. Ewan 1935-5-13 9208 Sonoma Bodega Bay Rd. 2 miles W of Bodega. Comment
  SEINET3817294 Image available Heuchera pilosissima Lewis S. Rose 1939-5-14 39119 Sonoma 2 miles east of Bodega Bay. 30 Comment
  CAS-BOT-BC319709  Hieracium albiflorum Volney Rattan 1877-6-15 s.n. Sonoma Guerneville Comment
  JEPS36683  Hieracium albiflorum W. L. Jepson 1921-5-6 9185 Sonoma summit of grade from Calistoga to Porter Creek 457 Comment
  CAS-BOT-BC319703  Hieracium albiflorum Dorothy Scherer 1997-5-20 131 Sonoma Hilltop south side of Fort Ross Road, 1/8 mi. west of Seaview rd., Fort Ross State Historic Park 39 Comment
  JEPS108607  Hierochloe occidentalis B. Bartholomew et al. 1975-12-1 403 Sonoma West of Occidental on Willow Creek Road Comment
  SEINET12155809  Hoita macrostachya J. P. Tracy 1951-1 19628 Sonoma Alexander Valley 5miE of Geyserville Comment
  POM252710  Hoita orbicularis A. A. Heller 1902-6-24 7548 Sonoma Near Burkes Sanitarium Comment
  UC1011008  Holcus lanatus Virginia Bufford 1936-5-22 407 Sonoma Highway 1 - 4 mi s Stewarts Point; s of Stewarts Point Comment
  UC76910  Holcus lanatus Michener and Bioletti 1892-7-5 Sonoma Skaggs Springs Comment
  UCR32183  Holcus lanatus David J. Keil 1983-6-29 17202 Sonoma c. 10 mi SE of Ft. Ross along Hwy 1 Comment
  SEINET10960739  Holcus lanatus A. Arthur Heller 1902-6-7 Heller 5651 Sonoma Bennett Valley, southeast of Santa Rosa. Comment
  SEINET11843924  Holocarpha virgata W. Knight, Knight, I. 1988-1 6340 Sonoma Kortum Canyon, at county line 351 Comment
  JEPS83481  Holodiscus discolor R. D. Stone 1985-5-29 672 Sonoma Cobb Mt.; ; upper Cobb Creek drainage ca. 1.1 mi. SW of Cobb Mt. summit 1066 Comment
  UC1084468  Holodiscus discolor G. Thomas Robbins 1937-6-6 233 Sonoma 2-3 mi e of Bodega Bay Comment
  UCD160813  Holodiscus discolor James A. Neilson Jr.; Teresa A. Sholars 1975-6-20 3363 Sonoma Section 10, ca. 1 1/2 miles west of The Geysers, 50 feet south of the Geysers Road. (Exact location unknown. Elevation and coordinates estimated by label maker..) 396 Comment
  UCD38483  Holodiscus discolor Beecher Crampton 1955-6-17 2957 Sonoma 5 miles west of Cazadero, road to Fort Ross. Comment
  CAS-BOT-BC315807  Holozonia filipes Greg de Nevers 1996-5-30 10834 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road 487 Comment
  UCD148362  Holozonia filipes Peter Rubtzoff 1955-8-27 2095 Sonoma Bennett Mountain Lake. Comment
  UC1746175  Hordeum brachyantherum Annetta M. Carter 1934-4-29 513 Sonoma 1 mi. W of Two Rock Junction on rd. to Tomales. Comment
  UCD85402  Hordeum brachyantherum David L. Morgan 1956-5-13 s.n. Sonoma On Watmaugh Road, 1/2 mile W of junction of Arnold Drive. Comment
  CAS-BOT-BC289288  Hordeum brachyantherum subsp. brachyantherum Peter Rubtzoff 1958-8-9 3822 Sonoma Laguna de Santa Rosa north of Sebastapol, near Occidental Road Comment
  SEINET7067246  Hordeum brachyantherum subsp. californicum A. G. Vestal 1947-5-13 s.n. Sonoma About 5 miles north of Fort Ross on Route 1. Coordinate datum: NAD27. Comment
  UCD37350  Hordeum brachyantherum subsp. californicum Beecher Crampton 1959-6-16 5385 Sonoma 1 mile E of Occidental. Comment
  CAS-BOT-BC285183  Hordeum marinum subsp. gussoneanum John Thomas Howell; Walter Knight; Irja Knight 1988-5-21 6226 Sonoma Todd Road Preserve 24 Comment
  CAS-BOT-BC285189  Hordeum marinum subsp. gussoneanum A. A. Heller 1902-6-4 5636 Sonoma Santa Rosa Comment
  SEINET10892631  Hordeum marinum subsp. gussoneanum A. Arthur Heller 1902-6-4 Heller 5636 Sonoma Santa Rosa. Comment
  CHSC8222  Hordeum murinum subsp. glaucum K. Henegar 1969-5-10 46 Sonoma Schooner Gulch, 200 yds s on Highway 1. Found on ocean side of road. Comment
  CAS-BOT-BC282023  Hordeum murinum subsp. leporinum David L. Morgan 1956-4-8 s.n. Sonoma 4 miles W of Sebastopol, at junction of Burnside and Gold Ridge Roads Comment
  UC116850  Horkelia californica Alice Eastwood 1900-7-4 Sonoma Bodega Bay Comment
  CAS-BOT-BC536158  Horkelia californica John Thomas Howell 1930-7-27 5389 Sonoma Fort Ross Comment
  SDSU9065  Horkelia californica D. F. Howe 1963-8-1 3653 Sonoma 2.2 miles north of Jenner on #1. Comment
  CAS-BOT-BC536168  Horkelia californica var. elata Volney Rattan 1877-6-23 s.n. Sonoma Healdsburg Comment
  CAS-BOT-BC146521  Horkelia tenuiloba John Thomas Howell 1937-7-4 13083 Sonoma 5 miles north of Sebastopol Comment
  JEPS86813  Horkelia tenuiloba Jack and Betty Guggolz 1991-5-4 1126 Sonoma one mi w Dry Creek Road (firebreak on the south side of Bradford Mountain); Bradford Mountain 341 Comment
  UC70428  Horkelia tenuiloba Milo S. Baker may 1899 Sonoma near the Laguna (Forest Hill Rd); Forestville Comment
  CAS-BOT-BC400998  Hypericum anagalloides Peter Rubtzoff 1958-6-1 3696 Sonoma Laguna de Santa Rosa east of Cunningham (nr. Llano Road) Comment
  UC1084463  Hypericum concinnum G. Thomas Robbins 1937-6-5 227 Sonoma roadside near Graton (Vine Hill region); Vine Hill region Comment
  SEINET11987351  Hypericum concinnum W. Knight, Knight, I. 1981-1 Sonoma 4.1 mi up Cavedale Road from jct of state rt. 12 Comment
  CAS-BOT-BC401290  Hypericum perforatum Peter Rubtzoff 1956-9-16 2922 A Sonoma Vacation Beach, near Guerneville Comment
  JEPS36533  Hypochaeris glabra M. E. and E. Van E. Ferguson Jun 8 1919-Jun 10 1919 Sonoma Guerneville; Russian River Comment
  CAS-BOT-BC210083  Hypochaeris glabra Peter Rubtzoff 1974-5-18 7437 Sonoma Todd Road, 1.4 miles from Highway 116 and 0.6 miles from Llano Road. Comment
  UCR56082  Iris douglasiana Fran Sibel 1965-5-28 328 Sonoma North Coast, along Gualala River off Hwy 1 and east toward Anapolis 152 Comment
  UC896986  Iris macrosiphon Alice Eastwood 1918-5-1 6822 Sonoma Mt. St. Helena Comment
  UCSB890  Iris macrosiphon Keator, Glenn 1959-4-2 Sonoma 1.2 miles east; on Cavedale road and 2.3 miles from Agua Caliente Comment
  RSA66912  Iris missouriensis E. K. Balls, Lee W. Lenz 1951-5-3 16399 Sonoma Ca. 2 miles north of Highway 12 on road to Petrified Forest Comment
  JEPS128286  Iris purdyi Roger Raiche 2005-4-9 008 .05 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UCR254909  Isoetes Greg de Nevers 1997-5-30 11010 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC57738  Isoetes howellii John Thomas Howell 1937-6-6 13015 Sonoma Sebastopol Comment
  CAS-BOT-BC112569  Isolepis cernua Peter Rubtzoff 1962-8-22 5059 Sonoma Bodega Bay Marsh. Comment
  CHSC91622  Isolepis cernua G. F. Hrusa 2000-11-13 15718 Sonoma Northern California. At base of ocean bluff. Kortum trail head to Goat Rock. Comment
  CAS-BOT-BC112563  Isolepis cernua John Thomas Howell 1930-6-8 s.n. Sonoma Salt Marsh at N end of Bodega Bay Comment
  POM180614  Isolepis cernua J. T. Howell 1930-6-8 5276 Sonoma Salt marsh at north end of Bodega Bay. Comment
  CAS-BOT-BC157987  Juncus Peter Rubtzoff 1968-6-25 5905 Sonoma Lichan Marsh Comment
  RSA790005  Juncus Walter Knight, I. Knight 1968-1-1 2266 Sonoma Geyser Resort. Along geyser trail at creek edge. Comment
  POM111209  Juncus bolanderi Marcus E. Jones 1882-7-17 s.n. Sonoma Duncan's Mills. Comment
  UC1026489  Juncus bufonius Peter Rubtzoff 1951-6-7 125 Sonoma near Forestville (uppermost part of the w branch of the Upper Marsh); Pitkin Marsh Comment
  UC1601701  Juncus bufonius J. Burtt Davy 1894-6-17 Sonoma Knights Valley Comment
  UCD141366  Juncus bufonius Frederica Bowcutt 1994-5-21 1840 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. On Hillside Trail 1 mile from junction with Grey Pine Trail. Comment
  UCD141394  Juncus bufonius Gerry North 1993-4 14 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. At first pullout on right after Goodspeed trailhead. Less than 0.2 mile east of park entrance gate. 228 Comment
  CAS-BOT-BC173568  Juncus bufonius var. congestus Peter Rubtzoff; Nancy Harrison 1974-9-7 7860 Sonoma Hinebaugh Creek in Rohnert Park. West of Commerce Blvd. crossing Comment
  CAS-BOT-BC210089  Juncus effusus Peter Rubtzoff 1963-7-27 5213 Sonoma Duncans Mills Marsh. Comment
  UCR244513  Juncus effusus subsp. pacificus Peter Rubtzoff 1968-6-25 5904 Sonoma Lichau Marsh [5 miles northeast of Penngrove on Lichau Road] 220 Comment
  CAS-BOT-BC164037  Juncus effusus subsp. pacificus Peter Rubtzoff 1971-7-23 6607 Sonoma Sonoma: Laguna, Chileno Valley Comment
  CAS-BOT-BC157998  Juncus hesperius Peter Rubtzoff 1959-6-20 4178 Sonoma Willow Creek Marsh Comment
  UCD141547  Juncus hesperius Mary M. Hektner; Sue Dakizaku 1974-6-3 015 -A Sonoma Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  UCR244626  Juncus hesperius Peter Rubtzoff 1969-8-14 6137 Sonoma Coleman Marsh 269 Comment
  CAS-BOT-BC290569  Juncus lescurii Peter Rubtzoff 1959-6-20 4179 Sonoma Willow Creek Marsh. Comment
  UCD19308  Juncus lescurii Terry Reedy 1974-5-11 207 Sonoma Bodega Head, in freshwater marsh. 6 Comment
  SEINET3880603  Juncus oxymeris M. L. Conrad, Dunn; LeDoux 1973-6-9 7081 Sonoma 0.6 mile west of Sonoma-Napa County Line on Hwy. 121.; 0 61 Comment
  UCD38691  Juncus tenuis Beecher Crampton 1957-5-16 4041 Sonoma 3 miles south of Healdsburg, along US Hwy. 101. Comment
  UCD151192  Keckiella corymbosa James A. Neilson Jr. 1974-7-10 2824 Sonoma Mayacmas Mountains, west of Cobb Mountain, along road to PG and E geothermal units 9 and 10, eastern Sonoma County. (Elevation estimated using topo map by label maker.) 960 Comment
  CAS-BOT-BC320568  Kickxia Peter Rubtzoff 1970-7-11 6281 Sonoma Laguna de Santa Rosa northwest of Trenton, at Healdsburg Road crossing. Comment
  CAS-BOT-BC320577  Kickxia Peter Rubtzoff 1970-9-8 6381 Sonoma Marsh on River Road, ca. 3 miles west of Fulton. Comment
  CAS-BOT-BC419699  Kickxia Peter Rubtzoff; Vanette Bunyan; Nancy Harrison; Marion Weiger 1974-8-5 7806 Sonoma Kenwood Marsh. Comment
  RSA0022379  Kickxia elatine Peter Rubtzoff 1970-7-11 6281 Sonoma Laguna de Santa Rosa northwest of Trenton, at Healdsburg Road crossing. Comment
  SEINET12333747  Kickxia elatine W. Knight, Wagnon, K. 1987-1 s.n. Sonoma Willow Creek between Corona Rd & Old Redwood Highway 6 Comment
  CDA1348  Kickxia spuria A. Ramey 2006-11-27 PDR# 1328770 Sonoma Sebastopol; 2900 Gravenstein Hwy. 95472 Comment
  UC1132153  Koeleria macrantha H. S. Yates 1937-5-3 6561 Sonoma 1 1/2 mi wnw Mark West Springs; Calistoga Quadrangle Comment
  UCD86025  Koeleria macrantha Beecher Crampton 1957-7-22 4396 Sonoma 1/4 mile north of Fort Ross, State Hwy. 1. Comment
  UC903716  Koeleria macrantha Milo S. Baker 1947-5-7 11733 Sonoma 2 mi n Kenwood (above house at Maplewood); n of Kenwood Comment
  UC1299463  Lactuca saligna Freed W. Hoffman 1946-8-23 797 Sonoma Comment
  UC1069689  Lactuca serriola H. S. Yates 1935-10-3 5344 Sonoma Santa Rosa Santa Rosa Quad., Santa Rosa 53 Comment
  CAS-BOT-BC340657  Lactuca serriola Walter Knight; Irja Knight 1963-10-6 489 Sonoma Skillman Lane, Petaluma 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
  JEPS97572  Lagurus ovatus R. D. Stone 1980-11-28 324 Sonoma Northern part of the Sea Ranch development N of Stewart's Point. Comment
  UC1146594  Lagurus ovatus Freed W. Hoffman 1944-6-8 2028 Sonoma Cruz Ranch, on coast Comment
  CAS-BOT-BC272433  Lamarckia aurea Greg de Nevers; Frank Almeda 1987-4-11 8146 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Road, Santa Rosa 400 Comment
  UCD165120  Lamium Peter Rubtzoff; Paul But 1974-4-6 7359 Sonoma Along roadside at the border of the Forestville Marsh. Comment
  UC1594207  Lasthenia burkei L. Huntington 1990-5-4 255 Sonoma n side of Laguna de Santa Rosa; Sebastapol 18 Comment
  UCSC007221  Lasthenia burkei Randall Morgan 2003-1 Sonoma Comment
  CAS-BOT-BC346331  Lasthenia californica G. DeNevers 1981-4-20 759 Sonoma Pepperwood Ranch. Pippindale farm; notch at ridge above Studio on Horse Hill Comment
  CAS-BOT-BC385626  Lasthenia californica Eliz. Parsons Hawver 1915-6-3 s.n. Sonoma Skaggs Springs Comment
  UC2061429  Lasthenia californica subsp. californica Rachael L. Olliff Yang 2017-5-3 21 Sonoma Pepperwood Preserve, about 500 m northwest of Three Tree Hill. Comment
  UCD133664  Lasthenia californica subsp. californica Mary M. Hektner; Cathy Hendel 1974-7-2 102 Sonoma Near State Highway 1, Sea Ranch, Unit 28 Owner's Map. Comment
  JEPS9909  Lasthenia californica subsp. californica Alice Eastwood 1899-6-1 Sonoma Comment
  CAS-BOT-BC324405  Lasthenia californica subsp. macrantha J. Clausen 1935-5-24 1092 Sonoma 6.2 miles south of Jenner Comment
  CAS-BOT-BC355521  Lasthenia glaberrima Alice Eastwood 1921-4-24 10356 Sonoma Santa Rosa Comment
  UC828906  Lasthenia glaberrima Leo Koch 1939-4-23 604 Sonoma along Game Refuge Road off Petaluma Hill Road Comment
  UCD133795  Lasthenia gracilis G. F. Hrusa 1995-4-2 12038 Sonoma along Franz Valley School Road, approx. 1 mile NW of Napa/Sonoma county line. 250 Comment
  RSA123035  Lasthenia macrantha subsp. bakeri H. S. Yates 1934-4-21 3787 Sonoma Near Bodega 61 Comment
  POM361574  Lasthenia macrantha subsp. macrantha J. T. Howell 1931-4-18 6425 Sonoma 8 miles N of Bay Comment
  CAS-BOT-BC164390  Lathyrus Peter Rubtzoff 1971-6-23 6551 Sonoma Eastern foothills of Sonoma Mountains on Sobre Vista Road, 0.9 miles west of Arnold Drive. Comment
  UCD166103  Lathyrus Peter Rubtzoff 1971-9-1 6672 Sonoma Spring Creek Reservoir area east of Santa Rosa. Comment
  CAS-BOT-BC204992  Lathyrus jepsonii var. californicus A. A. Heller 1902-6-7 5659 Sonoma Bennett Valley, southeast of Santa Rosa Comment
  CAS-BOT-BC204994  Lathyrus jepsonii var. californicus Alice Eastwood; John Thomas Howell 1938-5-15 5506 Sonoma Near Mark West Springs Comment
  CAS-BOT-BC376424  Lathyrus sphaericus Greg de Nevers 1993-4-26 10404 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Along Franz Valley Road by Mountain House entrance. 400 Comment
  UCR255730  Lathyrus sphaericus Greg de Nevers 1993-4-26 10404 Sonoma North Coast Range, Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  UCD159762  Lathyrus sulphureus James A. Neilson Jr. 1975-1-24 3430 Sonoma Mayacmas Mountains; Alder Creek drainage; along tributary of Alder Creek. Reservoir #2. Dominichelli Ranch. (Exact location unknown. Elevation and coordinates estimated by label maker.) 731 Comment
  UCD106668  Lathyrus tingitanus Donna Allen 1977-5-24 s.n. Sonoma Dry cr. Rd. next to bridge at site of proposed dam. Comment
  HSC100959  Lathyrus torreyi Peter Warner, Sarah Gordon 2011-5-16 198 Sonoma McCullough Ranch, end of Cresta Rd. (off Mark West Spring Rd. at Mark West Lodge), Fern Trail along lower to mid-Mill Creek. 273 Comment
  SEINET12165326  Lathyrus vestitus W. Knight, Knight, I.; DrEdwards, S. 1986-1 5333 Sonoma trail to the summit of Geyser Peak, access from Healdsburg-Geysers Road 863 Comment
  POM17270  Lathyrus vestitus subsp. vestitus A. A. Heller, H. E. Brown, A. H. Heller 1902-3-10 8256 Sonoma Hills East of Santa Rosa. Comment
  UCD106537  Lathyrus vestitus var. ochropetalus Mary M. Hektner 1975-6-2 193 Sonoma Coastal prairie; along path to beach, below parking lot on Pipers Reach, Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  UCR244752  Layia Peter Rubtzoff 1969-5-3 6010 Sonoma Laguna de Santa Rosa, c. 1 mile ESE of Sebastopol 21 Comment
  CAS-BOT-BC323228  Layia chrysanthemoides David D. Keck 1931-4-2 997 Sonoma Boyes Springs. 30 Comment
  CAS-BOT-BC323235  Layia chrysanthemoides H. M. Hall 1931-5-26 13081 Sonoma El Verano. Comment
  CAS-BOT-BC323259  Layia chrysanthemoides Alice Eastwood 1921-5-8 10447 Sonoma Petaluma Comment
  CAS-BOT-BC323253  Layia chrysanthemoides Wayne Roderick 1967-5-7 s.n. Sonoma 2 miles E of Petaluma 15 Comment
  CAS-BOT-BC313745  Layia chrysanthemoides subsp. maritima J. Clausen 1935-5-24 1090 Sonoma 6.2 miles S of Jenner Comment
  UC57867  Layia platyglossa A. A. Heller 1903-4-23 6608 Sonoma Fort Ross Comment
  CAS-BOT-BC329305  Layia septentrionalis H. E. Brown; A. A. Heller 1902-5-29 5622 Sonoma Mt. Hood Comment
  CAS-BOT-BC154154  Lemna Peter Rubtzoff 1965-11-9 5667 A Sonoma Laguna de Santa Rosa area, E of Graton (btwn. Occidental and Guerneville Roads). Comment
  CAS-BOT-BC210103  Lemna Peter Rubtzoff 1970-8-18 6315 Sonoma 5 miles north of Sears Point. Comment
  CAS-BOT-BC210109  Lemna Peter Rubtzoff 1970-6-21 6273 Sonoma Tributary of Mark West Creek, ca. 3 mi. W of Fulton. Comment
  RSA785222  Lemna gibba Peter Rubtzoff 1969-7-13 6111 Sonoma Pond 5.25 mi NE of Penngrove near Lichan Road. Comment
  UCR255075  Lemna minor Peter Rubtzoff 1960-6-5 4434 Sonoma Laguna de Santa Rosa area northeast of Graton, near the Laguna Road 30 Comment
  JEPS87236  Lemna minuscula Jack and Betty Guggolz 1992-4-22 1349 Sonoma cattle ranch se of Bloomfield Road 36 Comment
  UCR256275  Lemna valdiviana Peter Rubtzoff 1954-8-10 1671 Sonoma Bodega Head Marsh 6 Comment
  CAS-BOT-BC89146  Lepidium didymum Peter Rubtzoff 1987-10-17 9870 Sonoma Russian River at Forest Hills, 5.5 mile east of Guerneville, 9981 Old River Road near Forest Hills Road junction. 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
  UC1034634  Lepidium strictum Milo S. Baker 1955-6-1 13044 Sonoma Humboldt St. near 5th Santa Rosa Comment
  RSA122133  Leptosiphon androsaceus E. Armstrong 1934-3-26 936 Sonoma 4 miles N. of Camp Meeker 61 Comment
  CAS-BOT-BC376422  Leptosiphon ciliatus Greg de Nevers 1992-6-24 10177 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. By the PG&E tower in the saddle. 400 Comment
  CAS-BOT-BC324193  Lessingia hololeuca John Thomas Howell 1931-9-26 8090 Sonoma 2 miles from Monte Rio on road to Camp Meeker Comment
  JEPS86818  Lessingia ramulosa Jack and Betty Guggolz 1991-8-10 1232 Sonoma growing on creek below reservoir about a mile nnw Camp Meeker; Grub Creek 82 Comment
  JEPS87257  Lessingia ramulosa Jack and Betty Guggolz 1992-8-29 1340 Sonoma on creek just below reservoir (about 1 1/2 mi nw of Camp Meeker); Grub Creek 146 Comment
  UCD92468  Leymus X vancouverensis Freed W. Hoffman 1943-7-10 2170 Sonoma North Coast Ranges. Wright's Beach, Sonoma Coast. Comment
  CAS-BOT-BC436056  Ligusticum grayi Rimo Bacigalupi 1926-5-2 1388 Sonoma Cazadero Comment
  CAS-BOT-BC130695  Lilium occidentale Peter Rubtzoff 1951-8-18 633 Sonoma Western branch of the Upper Marsh 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
  UC942861  Limnanthes alba Lewis S. Rose 1951-5-17 51007 Sonoma hills w Agua Caliente 91 Comment
  RSA215898  Limnanthes douglasii Peter Rubtzoff 1955-5-21 1875 Sonoma Ross Marsh. Comment
  POM126412  Limnanthes douglasii subsp. douglasii I. J. Condit 1913-3-7 s.n. Sonoma Petaluma Comment
  RSA129915  Limnanthes douglasii subsp. douglasii Peter H. Raven 1950-4-6 1584 Sonoma Cotati to Santa Rosa. 152 Comment
  RSA262357  Limnanthes douglasii subsp. douglasii Lynn Gould 1962-4-20 57 Sonoma 1 mile east of Sonoma. 24 Comment
  UC971868  Limnanthes douglasii subsp. douglasii Charles T. Mason Jr. 1948-3-7 1117 Sonoma along Sonoma-Glen Ellen-Santa Rosa road; ditch at crossroad Comment
  CDA12906  Limnanthes douglasii subsp. nivea G. F. Hrusa, R. Gross, A. Buckmann 1996-3-29 12740 Sonoma North Coast Biodiversity Arena; Napa Valley bottom, immediately S of Tubbs Lane, approx. 2 m. NW of Calistoga. Comment
  JEPS73358  Limnanthes douglasii subsp. nivea Edward Lee 1934-4-30 748 Sonoma 1 mi w Two Rock Junction Comment
  CAS-BOT-BC251274  Limosella Peter Rubtzoff 1966-5-7 5721 Sonoma Laguna de Santa Rosa, east of Graton, between Occidental and Guerneville roads. Comment
  CDA36957  Linanthus androsaceus 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
  UC52738  Linanthus androsaceus C. B. Turrill Sonoma Comment
  UC133827  Linanthus parviflorus Katharine Brandegee Jun 1905 Sonoma between Santa Rosa and Sebastopol Comment
  CAS-BOT-BC540822  Linum Peter Rubtzoff 1974-6-2 7522 Sonoma Upper Green Valley Marsh. Comment
  UC72504  Lithocarpus densiflorus Milo S. Baker 1904-6-19 Sonoma Sonoma Creek Canyon Comment
  UC11884  Lithophragma affine Alice King Apr. 1897 Sonoma Healdsburg Comment
  SEINET12216914  Lithophragma heterophyllum F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -204 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd 440 Comment
  CAS-BOT-BC342498  Logfia gallica John Thomas Howell 1930-6-8 5236 Sonoma Bodega Road 3 miles east of Valley Ford Comment
  CAS-BOT-BC342500  Logfia gallica H. L. Mason 1934-4-28 8078 Sonoma Jensen's Ranch, head of Dohrmann Creek Comment
  CAS-BOT-BC283283  Lolium multiflorum John Thomas Howell; et al. 1981-5-14 53951 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles NE of Penngrove on the W slope of Sonoma Mountain 457 Comment
  CAS-BOT-BC283289  Lolium multiflorum Peter Rubtzoff 1951-7-21 488 Sonoma Pitkin Marsh, near Forestville. S half of Lower Marsh, near the highway Comment
  UCD66227  Lolium multiflorum A. A. Beetle; G. L. Stebbins Jr. 1942-6-4 3553 Sonoma 10 miles northeast of Santa Rosa on road to Calistoga. Comment
  RSA121238  Lolium perenne subsp. multiflorum H. S. Yates 1937-5-30 6552 Sonoma 1.5 miles E. of Occidental. 91 Comment
  RSA786875  Lolium perenne subsp. multiflorum Carrie A. Herd 1982-5-15 115 Sonoma Rohnert Park, C.S.U, Sonoma, between dorm parking lot and bicycle path Comment
  UC573663  Lolium temulentum H. S. Yates 1937-5-31 6560 Sonoma 1 1/2 mi wnw Mark West Springs; Calistoga Quadrangle Comment
  RSA121233  Lolium temulentum H. S. Yates 1937-5-31 6560 Sonoma 1.5 mi. WNW of Mark West Springs 183 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
  SBBG26774  Lomatium caruifolium L. Constance, R. C. Rollins 1942-5-10 Sonoma 4 mi N of Geyserville 60 Comment
  CAS-BOT-BC217811  Lomatium repostum Alice Eastwood 1915-6-6 4659 Sonoma Mt. St. Helena Comment
  JEPS86814  Lomatium repostum Jack and Betty Guggolz 1991-5-4 1127 Sonoma <firebrake> on s. side Bradford Mt. (1 mi. w. of Dry Creek Rd.) 341 Comment
  UCD73920  Lomatium repostum G. Ledyard Stebbins 1966-5-1 6390 Sonoma Rincon Ridge, Chanate Road, 1/4 mile west of Montecito. 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-BC240647  Lonicera hispidula A. A. Heller 1902-6-26 5767 Sonoma Along Sonoma Creek, at the foot of Mt. Hood Comment
  CDA31357  Lonicera hispidula var. vacillans D. G. Kelch 2010-5-3 10 .206 Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  UC912444  Lonicera hispidula var. vacillans Herbert L. Mason 1934-4-28 8080 Sonoma Jensen's Ranch Comment
  CAS-BOT-BC244004  Lonicera involucrata var. ledebourii A. A. Heller; H. E. Brown 1902-3-10 5015 Sonoma Hills east of Santa Rosa Comment
  CAS-BOT-BC244011  Lonicera involucrata var. ledebourii Peter Rubtzoff 1953-5-16 1368 Sonoma Vacation Beach, near Guerneville, bank of Russian River Comment
  UC28561  Lonicera involucrata var. ledebourii J. Burtt Davy 1894-6-18 Sonoma Knight's Valley Comment
  CAS-BOT-BC244002  Lonicera involucrata var. ledebourii A. A. Heller 1902-6-11 5690 Sonoma Santa Rosa Creek, east of Santa Rosa Comment
  CAS-BOT-BC198582  Lotus Peter Rubtzoff; Nancy Harrison 1974-9-7 7870 Sonoma Creek bed west of Commerce Blvd. crossing, Hinebaugh Creek in Rohnert Park Comment
  CAS-BOT-BC200970  Lotus Peter Rubtzoff 1983-8-28 9682 Sonoma Austin Creek ca. 0.5 mile north of Hwy 116 on Cazadero Road Comment
  CAS-BOT-BC293679  Lotus Peter Rubtzoff; Nancy Harrison 1974-9-7 7870 Sonoma Hinebaugh Creek in Rohnert Park., creek bed west of Commrece Blvd. crossing. Comment
  CAS-BOT-BC198577  Lotus C. F. L. 1890-7-1 s.n. Sonoma Bennet Valley Comment
  CAS-BOT-BC540824  Lotus Peter Rubtzoff 1974-9-7 7887 Sonoma Hinebaugh Creek in Rohnert Park., creek bed west of Commrece Blvd. crossing. Comment
  SEINET3523658 Image available Lotus americanus Lewis S. Rose 1938-9-11 38255 Sonoma Bloomfield 30 Comment
  UC1044492  Lotus angustissimus B. Crampton 1955-6-17 2967 Sonoma State Hwy 1 Fort Ross Comment
  UCD106701  Lotus angustissimus Robert E. Preston 2000-8-2 1427 Sonoma Ca. 2.5 mi NNE of Fort Ross, Seaview. 381 Comment
  CDA27201  Lotus formosissimus T. C. Fuller 1958-5-24 3983 Sonoma Pitkin Marsh, near Forestville. 0 Comment
  HSC98263  Lotus humistratus S. N. Wiemeyer 1962-4-20 29 Sonoma 0.75 mi. E of County Hospital along Chanate Rd. 122 Comment
  SEINET6233226  Lotus oblongifolius L. S. Rose 1962-1 62062 Sonoma Sonoma co, CA Comment
  UC726745  Lotus purshianus var. purshianus A. A. Heller 1941-8-8 16278 Sonoma w of Petrified Forest Comment
  UC864759  Lotus purshianus var. purshianus Lewis S. Rose 1938-9-11 38255 Sonoma Bloomfield 30 Comment
  UC862208  Lotus purshianus var. purshianus A. A. Heller 1938-8-11 15321 Sonoma Anderson Valley Comment
  RSA138211  Lotus unifoliolatus Volney Rattan 1877-1 s.n. Sonoma Santa Rosa Comment
  POM18957  Lotus unifoliolatus A. A. Heller 1902-8-18 7453 Sonoma Santa Rosa. Comment
  CAS-BOT-BC478122  Ludwigia Peter Rubtzoff 1986-8-31 9731 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville Comment
  UCD65846  Ludwigia hexapetala B. J. Grewell 2006-8-23 06- 48 -LU Sonoma Russian River watershed, Russian River at summer water crossing, Asti. Collection immediately downstream of summer bridge, west bank. 64 Comment
  CAS-BOT-BC258913  Ludwigia palustris Peter Rubtzoff 1969-8-24 6149 Sonoma Pond on River Road, 3 miles west of Fulton. Comment
  UC1191759  Ludwigia palustris Herbert L. Mason 1946-7-4 12886 Sonoma Pitkin Marsh between Santa Rosa and Forestville; Pitkin Marsh Comment
  UC728662  Ludwigia palustris Milo S. Baker 1945-7-18 11110 Sonoma upper meadow of Pitkin Marsh Comment
  RSA790998  Ludwigia peploides Peter Rubtzoff 1961-8-24 4711 Sonoma Vacation Beach, 2 miles below Guerneville along Russian River. Comment
  CAS-BOT-BC157972  Ludwigia peploides Peter Rubtzoff 1958-7-26 3807 Sonoma Laguna de Santa Rosa, east of Sebastopol Comment
  UCD65949  Ludwigia peploides subsp. peploides B. J. Grewell 2006-9-19 06- 73 -LU Sonoma Spring Lake, Sonoma County Park. Santa Rosa, CA. Shoreline near kayak rental and concession area. 89 Comment
  UCD65950  Ludwigia peploides subsp. peploides B. J. Grewell 2006-9-19 06- 74 -LU Sonoma Spring Lake, Sonoma County Park. Santa Rosa, CA. Shoreline near kayak rental and concession area at Spring Creek overflow spillway. 90 Comment
  CAS-BOT-BC201292  Lupinus Charles Piper Smith 1948-6-14 48386 Sonoma Glen Ellen - Triniti Road - Highway 12 junction, 1.5 miles east Comment
  CAS-BOT-BC201294  Lupinus Mrs. H. C. Cantelow 1941-6-7 s.n. Sonoma 4 miles north of Bay, on state highway 1 Comment
  SEINET10488351  Lupinus affinis Joseph W. Congdon 1880-5-22 Congdon s.n. Sonoma Santa rosa road Comment
  JEPS57129  Lupinus albifrons L. R. Heckard 1967-5-7 1593 Sonoma w of summit Hood Peak; w of summit of Hood Peak 792 Comment
  UC864972  Lupinus albifrons Alice Eastwood 1939-3-21 18902 Sonoma a few mi n Cloverdale (near Russian River); Russian River, n of Cloverdale Comment
  SEINET5327629  Lupinus albifrons A. A. Heller, H. E. Brown 1902-3-27 5162 Sonoma Western base of Mt. Hood. Comment
  CAS-BOT-BC195978  Lupinus albifrons var. albifrons Charles Piper Smith 1908-4-3 1392 Sonoma Forestville, 3 miles west Comment
  CAS-BOT-BC195985  Lupinus albifrons var. albifrons Peter H. Raven 1951-4-22 2788 Sonoma E. of Agua Caliente Comment
  CAS-BOT-BC196045  Lupinus albifrons var. collinus A. A. Heller 1940-5-17 15632 Sonoma About 2 miles east of Bodega Bay, near State Highway #1 Comment
  CAS-BOT-BC196152  Lupinus albifrons var. douglasii F. W. Johnson 1890-9-10 57 Sonoma Santa Rosa Comment
  SEINET10829743  Lupinus arboreus Jon Ricketson, Deanna Vanderbur 1985-7-3 Ricketson 2615 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
  UC796636  Lupinus bicolor Ira L. Wiggins 1949-4-30 12066 Sonoma 4 mi w Calistoga (just w of the county line); w of Calistoga Comment
  UCR275269  Lupinus bicolor Peter Rubtzoff 1974-4-17 7377 Sonoma Upper Green Valley Marsh Comment
  UC126967  Lupinus bicolor Willis L. Jepson 1893-5-3 Sonoma Mt. St. Helena Napa River Basin, Mt. St. Helena (foot of grade) Comment
  HSC34851  Lupinus densiflorus var. aureus Thomas W. Nelson 1975-5-8 1812 Sonoma Beside Hwy. 101 just S of Ash Creek near the Mendocino-Sonoma Co. line Comment
  POM320491  Lupinus densiflorus var. densiflorus Chris Dearden 1971-4-7 26 Sonoma Roadside turnout along HIghway 1, between Lytton and Geyserville. Pacific ocean drainage area. 213 Comment
  UC1076235  Lupinus formosus H. L. Mason June 1930 5655 Sonoma mouth of Gualala River Comment
  UC501358  Lupinus formosus H. E. and S. T. Parks 1930-5-10 849 Sonoma Knights Valley Comment
  UCR143605  Lupinus littoralis G. F. Pratt, C. Pierce 2003-5-15 s.n. Sonoma North Coast, Salt Point State Park 122 Comment
  OBI81777  Lupinus microcarpus var. densiflorus Rhonda Riggins 1982-5-22 1418 Sonoma Roadside, D St. (Petaluma-Reyes Rd) 1.4 mi S Petaluma Blvd in Petaluma Comment
  JEPS86805  Lupinus microcarpus var. microcarpus Jack and Betty Guggolz 1991-7-7 1207 Sonoma one mi nnw Camp Meeker (at head of a reservoir on Grub Creek); Grub Creek 91 Comment
  UC727104  Lupinus microcarpus var. microcarpus A. A. Heller 1940-5-17 15635 Sonoma along State Highway #1, one mi e Valley Ford; e of Valley Ford Comment
  UCD108952  Lupinus nanus Eric Davidson 1972-4-22 378 Sonoma along State Highway 21, ca. 5 miles north of State Highway 37. Comment
  CAS-BOT-BC320548  Lupinus polycarpus Peter Rubtzoff 1969-5-11 6045 Sonoma Laguna de Santa Rosa northeast of Graton, at end of Piner Road. Comment
  UC16007  Lupinus polyphyllus var. polyphyllus F. T. Bioletti 1892-1 Sonoma Comment
  JEPS83488  Lupinus sericatus Jack and Betty Guggolz 1986-4-23 864 Sonoma on a w-facing steep bank on the Kelly Road 0.2 mi w of the junction with Rockpile Road Comment
  RSA22011  Lupinus variicolor Alice Eastwood, John T. Howell 1939-4-2 7362 A Sonoma Larkspur Rock Comment
  SEINET5500889 Image available Lupinus variicolor Sally Walker 1984-6-6 Sonoma Salt Point Comment
  UCD109676  Lupinus variicolor John M. Tucker 1957-4-7 3288 Sonoma Chaney Gulch, beside road to Bodega Bay, ca. 3 miles east of the community of Bodega Bay. Comment
  UCD164189  Luzula Peter Rubtzoff; Nancy Harrison 1978-6-11 9205 Sonoma Cunningham Marsh area. On north side of Blucher Creek Valley. Comment
  CAS-BOT-BC210022  Luzula Peter Rubtzoff 1962-4-11 4793 Sonoma Laguna de Santa Rosa, east of Cunningham (near Llano Road) Comment
  UCD161671  Luzula subsessilis James A. Neilson Jr. 1974-4-30 2724 Sonoma Mayacmas Mountains. The Geysers. Bruno # 1. (Exact location of Bruno #1 not known by label-maker, but according to Neilson, it is west of Geysers Resort on a north-facing slope near a stream. In the Mayacmas Flora, he indicates it is near 'Old Mercuryville,' which is different than the Mercuryville seen on maps; location and elevation estimated by label-maker) 441 Comment
  CAS-BOT-BC293673  Lythrum Peter Rubtzoff 1971-6-30 6583 Sonoma Eastern foothills of Sonoma Mountains on Sobre Vista Road, 0.9 miles west of Arnold Drive. Comment
  UCD151069  Lythrum hyssopifolia James A. Neilson Jr. 1974-6-1 3057 Sonoma Mayacmas Mountains, Geyser Rock area, in the vicinity of the boundary line of Sonoma and Lake Counties. (Elevation estimated by label maker using Google Earth.) 1118 Comment
  CAS-BOT-BC166732  Madia Peter Rubtzoff; Nancy Harrison 1974-7-13 7669 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC166909  Madia Peter Rubtzoff 1955-9-25 2161 Sonoma Forestville Marsh area. Comment
  CAS-BOT-BC368061  Madia anomala Greg de Nevers 1998-5-26 11259 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Near Murry Gate 400 Comment
  CAS-BOT-BC368100  Madia anomala Greg de Nevers 1998-5-12 11247 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC344047  Madia elegans James McMurphy 1908-9-27 s.n. Sonoma 2 mi. S. of Fulton Comment
  JEPS128236  Madia elegans Roger Raiche 2000-9-2 147 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  HSC100974  Madia elegans Peter Warner 2011-8-10 225 Sonoma Jenner Headlands Property, Upper Russian Gulch Pasture, N of power line overcrossing. 227 Comment
  JEPS128198  Madia exigua Roger Raiche 2000-5-4 074 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  JEPS128215  Madia exigua Roger Raiche 2000-5-4 061 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UC33228  Madia exigua W. A. Setchell 1897-6-16 Sonoma Casadero Comment
  CAS-BOT-BC343450  Madia gracilis Alice Eastwood; John Thomas Howell 1938-5-15 5509 Sonoma Near Mark West Springs Comment
  JEPS128310  Madia gracilis Roger Raiche 2000-5-27 106 .00 Sonoma The Cedars, road into The Cedars at bridge (before 2nd crossing. Lower Russian River, Big Austin Creek watershed. Comment
  UC598735  Madia gracilis John Bright 1936-5-2 13114 Sonoma near Healdsburg Comment
  CAS-BOT-BC343460  Madia gracilis G. DeNevers 1981-5-23 1275 Sonoma Pepperwood Ranch Comment
  UCD132825  Madia gracilis Frederica Bowcutt 1994-5-21 1832 Sonoma Sugarloaf Ridge State Park. About 40 air miles N of San Francisco, 11 air miles E of Santa Rosa, 18 air miles NW of Napa, 1.5 air miles NE of Kenwood. Along the Hillside Trail 1/2 mile. 396 Comment
  POM231097  Madia nutans Jens Clausen 1935-5-24 1077 Sonoma Adobe Canyon at Sonoma Creek, along base of first ravine above Kenwood Springs. Comment
  CAS-BOT-BC345213  Madia sativa Alice Eastwood; John Thomas Howell 1936-7-4 3825 Sonoma 2 miles n. of Windsor 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-BC345226  Madia sativa A. A. Heller 1902-8-18 6050 Sonoma Santa Rosa Comment
  CAS-BOT-BC345230  Madia sativa John H. Thomas 1976-6-15 18285 Sonoma Southern end of the Sea Ranch, northwestern part of county, about 7 miles south of Gualala 30 Comment
  POM215200  Madia sativa D. D. Keck 1933-11-6 2647 Sonoma 1 mile north of Freestone on road to Occidental Comment
  UCD165237  Madia sativa Peter Rubtzoff 1974-6-22 7623 Sonoma Todd Road, 1.4 mi from Hwy 116 and 0.6 mi from Llano Road. Comment
  CAS-BOT-BC368076  Maianthemum stellatum Greg de Nevers 1998-4-27 11202 Sonoma Calistoga Road at Alpine Road, along Mark West Creek 121 Comment
  HSC7018  Marah fabacea F. Demostene 1966-4-1 3 Sonoma 2 mi. E of Healdsburg Comment
  CAS-BOT-BC348216  Matricaria discoidea Peter Rubtzoff 1966-5-26 s.n. Sonoma Laguna de Santa Rosa east of Sebastopol Comment
  CAS-BOT-BC348223  Matricaria discoidea Volney Rattan 1867-4-1 s.n. Sonoma Black Point Comment
  CAS-BOT-BC262962  Medicago Peter Rubtzoff 1973-8-29 7282 Sonoma Sonoma Creek bottom, near Agua Caliente Road crossing, west of Agua Caliente. Comment
  CAS-BOT-BC268100  Medicago Peter Rubtzoff; Vanette Bunyan; Nancy Harrison; Marion Weiger 1974-8-5 7804 Sonoma Kenwood Marsh. Comment
  UCD106758  Medicago arabica Mary M. Hektner 1976-4-3 230 Sonoma Sea Ranch Association Office, Sea Ranch, near State Highway 1. Comment
  UC55048  Melica aristata Jos. Burtt Davy Jul 1896 Sonoma Russian River Comment
  CAS-BOT-BC269510  Melica californica David L. Morgan 1961-4-15 s.n. Sonoma Bohemian Highway 3 miles north of Occidental Comment
  JEPS128380  Melica geyeri Roger Raiche 2000-5-5 086 .00 Sonoma The Cedars. Danfield Creek, Leona's Cabin Site. Gualala River, Wheatfield Fork watershed. Comment
  UCD87314  Melica geyeri Virginia Bufford 1937-5-10 454 Sonoma Larkspur Rock, Bodega Canyon. Comment
  UCD87521  Melica harfordii P. B. Kennedy 1915-5-31 s.n. Sonoma Stewarts Point--Annapolis Road. Comment
  CAS-BOT-BC262554  Melica torreyana G. DeNevers 1981-5-7 1006 Sonoma Pepperwood Ranch. By confluence of Leslie Creek with Mark West Creek Comment
  SEINET3383322 Image available Melica torreyana Barbara L. Wilson, Cheri Buskirk 2009-4-5 15419 Sonoma Santa Rosa; Annadel State Park; Comment
  UC1146593  Melica torreyana Freed W. Hoffman 1947-5-30 1701 Sonoma Austin Creek Layton Mine; North Coast Ranges, Austin Creek Comment
  UCD89210  Melica torreyana L. Whitney 1935-4-14 s.n. Sonoma Near Occidental. Comment
  CAS-BOT-BC164405  Melissa Peter Rubtzoff 1973-8-28 7277 Sonoma Upper Green Valley Marsh Comment
  UCSC000630  Melissa officinalis I. J. Condit 2008-8-13 s.n. Sonoma in redwoods redwoods - Guerneville Comment
  UCR244669  Mentha Peter Rubtzoff 1960-9-17 4567 Sonoma Laguna de Santa Rosa near Trenton [Rd.] (south of Woolsey Road) Comment
  CAS-BOT-BC164083  Mentha Peter Rubtzoff 1960-9-17 4567 Sonoma Laguna de Santa Rosa, near Trenton (south of Woolsey Road). Comment
  CAS-BOT-BC164089  Mentha Peter Rubtzoff 1960-9-17 4571 Sonoma Laguna de Santa Rosa, near Trenton (south of Woolsey Road). Comment
  UCD166502  Mentha canadensis Peter Rubtzoff 1960-10-29 4584 Sonoma Laguna de Santa Rosa, east of Graton (btwn. Occidental and Guerneville Road). Comment
  UCD148406  Mentha canadensis Peter Rubtzoff 1958-8-16 3882 Sonoma Laguna de Santa Rosa, north of Sebastopol (near Occidental Road). Comment
  PASA1168  Mentha pulegium Frank W. Peirson 1925-8-8 Sonoma 5 miles east of Santa Rosa Comment
  RSA785148  Mentha rotundifolia Peter Rubtzoff 1973-8-27 7266 Sonoma Upper Green Valley Marsh. Comment
  RSA785143  Mentha spicata Peter Rubtzoff 1968-8-24 5936 Sonoma Forest Hills, 5.5 mi E of Guerneville. On Russian River bank. Comment
  RSA785144  Mentha spicata Peter Rubtzoff 1973-8-28 7275 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC429003  Micranthes fragosa Milo S. Baker 1928-3-1 2737 e Sonoma Golf Club Links 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-BC348632  Micropus californicus var. californicus L. R. Abrams 1918-4-27 6902 Sonoma Independence School near Healdsburg Comment
  CAS-BOT-BC348634  Micropus californicus var. californicus Barrett Anderson 1987-4-27 3472 Sonoma Petaluma, south of El Rose and west of D Street 120 Comment
  RSA52653  Micropus californicus var. californicus I. L. Wiggins 1949-4-30 12069 Sonoma 4 miles W of Calistoga, just W of country line. Comment
  CAS-BOT-BC348730  Microseris bigelovii John Thomas Howell 1931-4-18 6417 Sonoma Mouth of Salmon Creek 2 miles n. of Bay Comment
  CAS-BOT-BC348854  Microseris douglasii subsp. douglasii Greg de Nevers 1987-4-25 8167 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Rd., Santa Rosa 400 Comment
  UC50030  Microseris douglasii subsp. douglasii Edw. L. Greene 1892-4-23 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC322705  Microseris laciniata Volney Rattan May and June s.n. Sonoma North of Cloverdale Comment
  UC50056  Microseris laciniata subsp. laciniata J. Burtt Davy 1894-6-17 Sonoma Knight's Valley Comment
  UC50059  Microseris laciniata subsp. laciniata F. T. Bioletti 1893-5 Sonoma Comment
  CAS-BOT-BC322748  Microseris paludosa Ella Dales Cantelow 1941-4-18 3508 Sonoma 2 miles north of Windsor Comment
  CAS-BOT-BC320496  Mimulus Peter Rubtzoff 1955-8-20 2064 Sonoma Bodega Head Marsh. Comment
  CAS-BOT-BC320529  Mimulus Peter Rubtzoff 1958-7-5 3748 Sonoma Atascadero Creek Marsh. Comment
  RSA0025389  Mimulus Peter Rubtzoff 1957-5-11 3336 Sonoma Occidental Marsh. Comment
  JEPS77266  Mimulus arvensis Robert M. Lloyd 1963-4-24 2403 Sonoma 18.3 mi e State Highway 12 (on road to Oakdale) 243 Comment
  UCR222566  Mimulus aurantiacus George K. Helmkamp, E. A. Helmkamp 2010-6-4 16235 Sonoma North Coast Ranges, Mark West Springs Road (Porter Creek Rd.), 9.8 rd. miles east of its junction with US-101, 4.5 air miles SW (250 deg. ) of Calistoga 280 Comment
  UCD122189  Mimulus aurantiacus Valerie Bullock 1993-5-8 216 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 hillside on base of woodland. 365 Comment
  RSA39875  Mimulus aurantiacus var. aurantiacus P. A. Munz 1947-10-9 12212 Sonoma Dry Slope near entrance to Armstrong Redwoods State Park Comment
  JEPS128246  Mimulus guttatus Roger Raiche 2000-5-27 109 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  POM5021  Mimulus guttatus C. F. Baker 1899-05 s.n. Sonoma Stewarts Canon, near Falls. Comment
  RSA434668  Mimulus guttatus Francis W. Pennell, H. L. Mason 1940-5-21 25483 Sonoma Route 28, Kellogg. 183 Comment
  RSA80596  Mimulus guttatus E. K. Balls, Lee W. Lenz 1952-5-8 17109 Sonoma 3.3 mi. n.e. from Mark West Springs on rd. to Kellogg. 91 Comment
  UCSB31445  Mimulus guttatus Townsend, J. 1977-5-30 Sonoma East bank Russian River; 1 mile south of Guerneville 335 Comment
  UC26956  Mimulus kelloggii H. N. Bolander 1864-1 3951 Sonoma near Pine Mt.; The Geysers Comment
  UC1374916  Mimulus microphyllus Noel H. Holmgren, Liew Fah Seong 1969-6-23 3606 Sonoma 7.2 mi n Marin County line (Calif. 1) Comment
  UC103685  Mimulus nasutus unknown May 1891 Sonoma Cloverdale Comment
  POM5035  Mimulus tricolor Katherine Brandegee 1905-6-8 s.n. Sonoma Along electric line near Santa Rosa. Comment
  UCSC000249  Minuartia californica I. J. Condit 2013-3-7 s.n. Sonoma Petaluma Comment
  CAS-BOT-BC388891  Minuartia douglasii Roxana S. Ferris; Laura Lorraine 1961-6-14 13522 Sonoma Junction of Bittner Road with Joy Road, between Occidental and Bodega Comment
  CAS-BOT-BC388893  Minuartia douglasii F. Almeda; G. DeNevers 1981-4-28 4910 Sonoma Pepperwood Ranch. Vicinity of the Bechtel cabin Comment
  UCR248888  Minuartia douglasii Peter Rubtzoff 1974-5-18 7408 Sonoma Todd Road, 1.4 miles from Hwy 116 and 0.6 miles from Llano Road 29 Comment
  CAS-BOT-BC388899  Minuartia douglasii Peter Rubtzoff 1957-5-26 3353 Sonoma Hillslope near Occidental-Graton road, 2.7 mi. east of Occidental Comment
  JEPS128238  Moehringia macrophylla Roger Raiche 2000-5-5 084 .00 Sonoma The Cedars. Danfield Creek, Leona's Cabin Site. Gualala River, Wheatfield Fork watershed. Comment
  CAS-BOT-BC435115  Mollugo verticillata James McMurphy 1906-7-16 s.n. Sonoma Fulton Comment
  UCD167562  Monardella James A. Neilson Jr. 1976-6-18 s.n. Sonoma Mayacmas Mountains. 1/4 mile north of Black Hawk Ranch. Banks above Squaw Creek. (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
  NY429328  Monardella coriacea A. A. Heller 1902-7-8 5812 Sonoma Sandy bank of Russian River at Healdsburg Comment
  LA57191  Monardella purpurea Robert F. Hoover; 1942-7-13 5915 Sonoma 3 mi. S of Monte Rio Comment
  CAS-BOT-BC220387  Monardella purpurea Milo S. Baker 1946-7-4 11524 Sonoma Harrison Grade Rd. ca 2 mi N.E. of Occidental Comment
  CAS-BOT-BC314208  Monardella villosa subsp. subserrata Marcus E. Jones 1882-7-18 s.n. Sonoma Duncan Mills Comment
  RSA0022780  Monardella villosa subsp. subserrata L. S. Rose 1965-7-3 65081 Sonoma 2 mi. north of Sonoma. 274 Comment
  CAS-BOT-BC314210  Monardella villosa subsp. villosa John H. Thomas 1969-9-21 15470 Sonoma Coastal bluffs to the S of the mouth of the Russian River. 121 Comment
  RSA518858  Monardella viridis Roger Raiche 1987-7-5 70380 Sonoma N of Cazadero, The Cedars, Big Austin Creek drainage, between Gravelly Springs and Red Slide Creek. 305 Comment
  SEINET12320782  Monardella viridis W. Knight, Knight, I. 1981-1 3958 Sonoma 2.3mi up Cavedale Road from State Hwy #12 Comment
  UCR106049  Montia fontana Peter Rubtzoff 1966-4-30 5685 Sonoma North side of Hwy 116, 0.5 miles northwest of Stony Point Road crossing Comment
  CAS-BOT-BC444990  Montia fontana Catherine Best 1982-3-20 s.n. Sonoma Stoetz Lane 2 mi. north east of Occidental Comment
  CAS-BOT-BC445006  Montia fontana Peter Rubtzoff 1967-5-21 5841 Sonoma Todd Road 1.4 mi. from Hwy. 116 and 0.6 mi. from Llano Rd. Comment
  CAS-BOT-BC445060  Montia linearis Alice Eastwood 1921-4-24 10348 Sonoma Santa Rosa Comment
  UC1146576  Muhlenbergia andina Freed W. Hoffman 1947-8-30 575 Sonoma Red Slide North Coast Ranges, Austin Creek, Layton Mine Comment
  CAS-BOT-BC515555  Muilla maritima J. W. Congdon 1880-4-8 s.n. Sonoma Petaluma [collected as Marin County] Comment
  RSA123590  Muilla maritima Leo Koch 1938-3-23 63 Sonoma Roadside near Shiloh cemetery, near Windsor. Comment
  UCR255876  Myosotis discolor Greg de Nevers 1993-5-17 10454 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 220 Comment
  CAS-BOT-BC257704  Myosurus Peter Rubtzoff 1966-4-17 5672 Sonoma Laguna de Santa Rosa east of Sebastopol. Comment
  RSA26145  Myrica californica E. K. Balls, P. C. Everett 1953-10-9 18604 Sonoma 0.2 mi. NW of Ocean cove, Hwy 1 between Fort Ross and Point Arena; 5 mi. NW of Fort Ross. 91 Comment
  UC1135955  Myrica californica H. S. Yates 1934-4-21 3815 Sonoma near Guerneville; Duncan Mills Quad. Comment
  RSA94652  Myrica californica Peter Rubtzoff 1952-3-23 876 Sonoma Pitkin Marsh, near Forestville. Eastern branch of the upper marsh. Comment
  RSA216139  Najas guadalupensis Peter Rubtzoff 1955-7-30 1996 Sonoma Bennett Mountain Lake Comment
  UCD36695  Nassella lepida Beecher Crampton 1955-6-17 2966 Sonoma Sonoma County, 1.5 miles east of Fort Ross. Comment
  CAS-BOT-BC260287  Nassella pulchra A. A. Heller 1902-4-23 5350 Sonoma Near Sonoma Comment
  UC1153820  Nassella pulchra Beecher Crampton 1957-5-16 4041 Sonoma US Hwy 101 3 mi s Healdsburg (banks of railway cut) Comment
  CAS-BOT-BC60527  Nasturtium officinale John H. Thomas 1976-6-18 18363 Sonoma About 4.6 miles west of Warm Springs Dam, between Skaggs Springs and Geyserville. Comment
  UCR265236  Nasturtium officinale Ann Howald 2015-4-28 3377 Sonoma North Coast Ranges, Stewarts Point-Skaggs Springs Rd, Las Lomas, c. 12.9 miles west of intersection with Rockpile Rd, Wild Cattle Creek drainage 585 Comment
  UCD48473  Navarretia intertexta Herbert L. Mason 1940-5-21 12295 Sonoma Head of Maacama Creek, Knights Valley, Sonoma County. Comment
  CAS-BOT-BC230373  Navarretia leucocephala subsp. bakeri Alice Eastwood; John Thomas Howell 1936-5-19 2520 Sonoma 2 miles N of Windsor Comment
  CAS-BOT-BC230379  Navarretia leucocephala subsp. bakeri James McMurphy 1906-7-16 s.n. Sonoma Fulton Comment
  UC30204  Navarretia leucocephala subsp. bakeri H. N. Bolander 1866-1 3893 Sonoma Mark West Creek Comment
  UCR224692  Navarretia leucocephala subsp. bakeri Ayzik Solomeshch 2009-5-12 s.n Sonoma Along Bennett Valley Road, between Santa Rosa and Glen Ellen 189 Comment
  JEPS83483  Navarretia leucocephala subsp. plieantha Jack and Betty Guggolz 1986-5-23 872 Sonoma sw of Windsor Comment
  UC73615  Navarretia pubescens Milo S. Baker 1898-5-7 Sonoma Glen Ellen Comment
  UC124588  Navarretia squarrosa I. J. Condit 1908-8-13 Sonoma between G- and Armstrong Grove Comment
  UCD48682  Navarretia squarrosa Frederica Bowcutt 1984-6-23 425 Sonoma Salt Point State Park. Approx. 20 miles N of Jenner and 80 miles S of Fort Bragg along Sonoma County Coast. W of Hwy 1. N of Gerstle Cove growing along roads. On Plantation 7.5' Quad. Coastal terrace. 30 Comment
  CDA38609  Navarretia squarrosa A. Smith & C. Morgan 2012-7-12 PDR# 1604317 Sonoma Vicinity of Annapolis. 0 Comment
  UCD48702  Navarretia squarrosa Frederica Bowcutt 1994-6-25 1915 Sonoma Sugarloaf Ridge State ParkAbout 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. Along Grey Pine Trail about 1/2 way between Brushy Peak Trail and Meadow Trail. 530 Comment
  UC631639  Navarretia viscidula G. Thomas Robbins 1938-6-23 270 Sonoma just e Pitkin Marsh; Vine Hill Region Comment
  CAS-BOT-BC7192  Nemophila divaricata Alice Eastwood 1900-4-21 s.n. Sonoma Mt. St. Helena Comment
  UCD119981  Nemophila heterophylla Frederica Bowcutt; Jolie Henricks, Jeff Kennedy 1994-5-1 1753 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. In Adobe Canyon along Goodspeed Trail approx. 200 yds. From just E of Bear Creek about 5 yds. N of confluence with Sonoma Creek. 198 Comment
  POM126456  Nemophila heterophylla H. P. Chandler 1907-4-27 7543 Sonoma Spring Mountain, beyond summit [no county listed]. Comment
  UCD119984  Nemophila heterophylla Frederica Bowcutt 1996-3-24 2087 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. 0.5 air mile SE of Red Mountain. Along Vista Trail just SE of Headwaters Trailhead. 563 Comment
  SEINET12345599  Nemophila menziesii F. H. Utech, Kawano, S.; Ohara, M. 1995-3-26 95 -59 Sonoma 11.5 mi WNW of Lake Sonoma on Skaggs Springs Road along Skaggs Springs Creek Comment
  UC1299130  Nemophila menziesii Freed W. Hoffman 1947-3-31 884 Sonoma Chimney Rock near Monte Rio; near Monte Rio, Chimney Rock Comment
  UCD120232  Nemophila menziesii R. W. Thorp 1967-3-9 670309 D Sonoma One mile southeast of Verona. Comment
  UCD13104  Nemophila menziesii William Sischo 1973-5-10 123 Sonoma Sonoma County, Bodega Bay Head. Comment
  UC606952  Nemophila menziesii var. atomaria L. Constance 1938-4-24 2158 Sonoma mouth of small canyon 0.5 mi s Fort Ross; s of Fort Ross 91 Comment
  SD254635  Nemophila pedunculata Ann Howald 2015-4-1 3313 Sonoma Northern Coast Ranges: Stewarts Point-Skaggs Springs Road, 11.5 miles west of intersection with Rockpile Road. Warm Springs drainage (Warm Springs Dam 7.5'Q) 408 Comment
  CAS-BOT-BC366896  Nicotiana Greg de Nevers 1997-10-17 11106 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. By Hansel's corral 400 Comment
  CAS-BOT-BC157974  Nicotiana Peter Rubtzoff 1965-8-16 5605 Sonoma Russian River bottom at Forest Hills, 5.5 miles East of Guerneville Comment
  UCR280150  Nicotiana acuminata var. multiflora Peter Rubtzoff 1973-8-29 7286 Sonoma Sonoma Creek, near Agua Caliente Road crossing, west of Agua Caliente 38 Comment
  SEINET12327553  Nicotiana acuminata var. multiflora W. Knight, Knight, I.; Edwards, S. W. 1984-1 5043 Sonoma along Willow Creek near Stony Point Rd, between Corona Rd & Old Redwood Hwy 6 Comment
  CAS-BOT-BC157656  Nicotiana bigelovii Peter Rubtzoff 1959-9-19 4284 Sonoma Vacation Beach, near Guerneville along Russian River. Comment
  SD133974  Nicotiana quadrivalvis Barbara Ertter 1988-11-5 8030 Sonoma Lake Sonoma ca 5 airmiles due S of Cloverdale, point below Little Flat parking area W of bridge 152 Comment
  JEPS128195  Notholithocarpus densiflorus var. densiflorus Roger Raiche 1999-12-4 052 .99 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UCD127753  Oenanthe sarmentosa Terri Williamson 1990-5-20 47 Sonoma Bayflat Rd., Bodega Bay. 3 Comment
  UCSB6225  Orobanche fasciculata Kamb, Peter 1950-6-17 Sonoma "Larkspur Rock", south side of Cheney Gulch, 2.9 miles west of fork in road to Bodega and Valley Ford 30 Comment
  CAS-BOT-BC500335  Orobanche uniflora subsp. occidentalis J. W. Congdon 1880-4-13 s.n. Sonoma Petaluma 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
  POM15635  Orthocarpus faucibarbatus A. A. Heller 1903-4-23 6607 Sonoma Fort Ross. 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
  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
  RSA177935  Osmorhiza berteroi R. F. Thorne 1965-4-20 34331 Sonoma Parker Hill Rd, 2.5 miles N of Santa Rosa and 1 mile N of Sonoma County Hospital. 107 Comment
  CHSC26016  Oxalis oregana William Larkin 1961-3-28 Sonoma Rio Nido; along canyon road leading to cabins. 30 Comment
  HSC16700  Oxalis oregana Martha Meagher 1947-3-23 93 Sonoma County Rd. one-half 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
  UC1389001  Packera Milo S. Baker 1934-4-28 7605 Sonoma w Dry Creek Valley (ne corner of ranch); Jensen Ranch Comment
  UC964740  Packera Herbert Mason 1934-4-28 8060 Sonoma Dohrman Creek Jensen's Ranch (head) Comment
  CAS-BOT-BC316882  Packera eurycephala var. eurycephala Brandegee s.n. Sonoma unspecified Comment
  CAS-BOT-BC316926  Packera greenei Helen Katherine Sharsmith 1952-6-18 4127 Sonoma Near junction of Socrates Mine road with Pine Flat-Middletown road, Mayacamas Mountains. 975 Comment
  SEINET11744645 Image available Packera greenei H. K. Sharsmith 1952-6-18 4127 Sonoma Near junction of Socrates Mine road with Pine Flat-Middletown road, Mayacamas Mountains.; 38.7619444 -122.7583333 975 Comment
  UC91652  Packera greenei Brandegee May 1890 Sonoma Mt. St. Helena Comment
  CAS-BOT-BC227648  Panicum Peter Rubtzoff; Nancy Harrison 1978-5-20 9186 Sonoma Cunningham Marsh area, on north side of Blucher Creek Valley. Comment
  RSA784570  Panicum Peter Rubtzoff 1978-5-20 9186 Sonoma Cunningham Marsh area, on north side of Blucher Creek Valley. Comment
  UC1254541  Panicum acuminatum var. acuminatum R. Spellenberg 1966-9-7 1618 Sonoma downstream from the geyser area (along Sulphur Creek); The Geysers, along Sulphur Creek Comment
  UCD88550  Panicum acuminatum var. fasciculatum Mary M. Hektner 1974-7-6 132 A Sonoma Unit 34-A Owners' Map, Sea Ranch. Comment
  UCD32828  Panicum acuminatum var. thermale Beecher Crampton 1964-8-18 7139 f Sonoma N.E. Sonoma County: The Geysers, 12 miles (in direct line) east of Cloverdale, ca. 1/2 mile east of Geyser Resort area, slope of steam well (locally called 'The Outlaw') or otherwise thermal no. 10 (Thermal Power co.), steep banks along road to steam well. 493 Comment
  UCD89125  Panicum acuminatum var. thermale Beecher Crampton 1964-8-18 7139 c Sonoma North East part of county. The Geysers. 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
  UCD89754  Panicum miliaceum P. B. Kennedy 1914-10-1 s.n. Sonoma Del Mar Ranch. Comment
  UCD88621  Parapholis incurva Beecher Crampton 1957-7-11 4316 Sonoma western edge of Bodega Harbor. About 2 miles, by road, west of the town of Bodega Bay. Comment
  CDA32871  Parentucellia viscosa CDFA Staff 1980-1 Sonoma 0 Comment
  UC972197  Parvisedum pumilum Milo S. Baker 1952-4-20 12399 Sonoma ca 1/4 mi n of Caliente (e side of Highway 12); e side of Highway 12 Comment
  CAS-BOT-BC154998  Paspalum Peter Rubtzoff 1971-8-31 6662 Sonoma Todd Road, near Stony Point Road. Comment
  UC635622  Paxistima myrsinites H. L. Mason 1934-4-28 8079 Sonoma Dohrman Creek at head of Jensen's Ranch Comment
  CDA12037  Pedicularis densiflora G. F. Hrusa 1990-1-2 7352 Sonoma North Coast Biodiversity Arena; Hogback Mtn. between headwaters of Nathanson and Agua Caliente Creeks, approximately 4 km. NE of Sonoma. Comment
  SEINET12327822  Pedicularis densiflora F. H. Utech, Knight, W.; Knight, I. 1984-1 84 -086 Sonoma ca 4 mi NNW of Sonoma on Cavedale Road from junction with CA 12 152 Comment
  CAS-BOT-BC245716  Penstemon newberryi var. sonomensis Belle Richardson Jackson 1924-8-1 s.n. Sonoma Mt. St. Helena 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-BC245723  Penstemon newberryi var. sonomensis Rimo Bacigalupi 1920-5-30 s.n. Sonoma Summit of Mt. St. Helena, Lake-Sonoma Co. Comment
  UC35615  Pentachaeta exilis F. T. Bioletti 1892-1 Sonoma Comment
  HSC34930  Pentagramma triangularis Thomas W. Nelson, James Nelson 1975-3-25 1760 Sonoma Beside Hwy. 128, E of Geyserville at the Sonoma-Napa Co. line Comment
  SEINET12335254  Pentagramma triangularis F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -272 Sonoma ca 10 mi from Warm Springs Dam enroute to Healdsburg on Old Stewart Point-Skaggs Springs Road 150 Comment
  CAS-BOT-BC71729  Pentagramma triangularis subsp. triangularis D. E. Breedlove 1980-6-27 44765 Sonoma Pepperwood Ranch W of Knights Valley Comment
  CAS-BOT-BC71730  Pentagramma triangularis subsp. triangularis Peter Rubtzoff 1952-6-3 1164 Sonoma South slopes of Fitch Mtn., near Healdsburg Comment
  JEPS128377  Pentagramma triangularis subsp. triangularis Roger Raiche 2000-4-23 044 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UC399562  Pentagramma triangularis subsp. triangularis C. F. Sonne April 1887 208 Sonoma White Sulphur Springs near Vallejo Comment
Read comments
1
  CAS-BOT-BC222748  Perideridia gairdneri subsp. gairdneri Peter Rubtzoff 1958-7-26 3798 Sonoma Laguna de Santa Rosa east of Sebastopol Comment
  JEPS120461  Perideridia gairdneri subsp. gairdneri Daniel Slakey 2013-8-11 63 Sonoma Salt Point State Park, along the Salt Point trail, about 0.4 mile north of Salt Point, along the coast. Comment
  UCD127853  Perideridia kelloggii Mary M. Hektner 1976-10-19 271 Sonoma north of draw by intersection of Pacific Reach Road and Wilel Moor Reach, Unit 24 Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC413665  Persicaria amphibia Volney Rattan 1877-6-14 s.n. Sonoma Guerneville Comment
  CAS-BOT-BC413639  Persicaria amphibia Peter Rubtzoff 1971-6-25 6556 Sonoma Off west side of Hwy. 1, 0.7 mi. southeast of Salmon Creek crossing Comment
  CAS-BOT-BC413645  Persicaria amphibia Peter Rubtzoff 1966-8-26 5811 Sonoma Atascadero Creek Marsh Comment
  CAS-BOT-BC413655  Persicaria amphibia Peter Rubtzoff 1966-10-9 5833 Sonoma Bodega Head Marsh Comment
  UCD99060  Persicaria hydropiper Frederica Bowcutt 1997-7-18 2174 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Just south of midpoint between Mt. Hood and Red Mountain. Road on ridge West of Bear Ck. 365 Comment
  CAS-BOT-BC418906  Persicaria hydropiperoides Peter Rubtzoff 1960-9-17 4565 Sonoma Laguna de Santa Rosa area northeast of Graton (near Laguna Road) Comment
  CAS-BOT-BC418915  Persicaria hydropiperoides Peter Rubtzoff 1963-10-5 5290 Sonoma Laguna de Santa Rosa east of Graton Comment
  CAS-BOT-BC418893  Persicaria hydropiperoides John Thomas Howell 1946-8-17 22856 Sonoma The Laguna north of Sebastopol Comment
  CAS-BOT-BC418899  Persicaria hydropiperoides Peter Rubtzoff 1951-7-1 349 Sonoma Pitkin Marsh, near Forestville. North of the Lower Marsh Comment
  CAS-BOT-BC419121  Persicaria lapathifolia Peter Rubtzoff 1964-5-31 5328 Sonoma Fitch Mtn. Grove, 2 mi. east of Healdsburg Comment
  CAS-BOT-BC419275  Persicaria maculosa Peter Rubtzoff 1954-7-29 1614 Sonoma Guerneville Marsh Comment
  CAS-BOT-BC258013  Persicaria pensylvanica Peter Rubtzoff 1973-9-9 7325 Sonoma Kenwood Marsh. Comment
  CAS-BOT-BC330279  Petasites frigidus var. palmatus Mary P. Wells 1981-8-2 s.n. Sonoma Trail north of Crow's Nest Rd and E of Spyglass Lane. The Sea Ranch Comment
  HSC63599  Petrorhagia nanteuilii Richard K. Rabeler 1980-8-8 507 Sonoma Along trail to Big Austin Creek along N side of King Ridge Rd., .4 km. NW of Big Austin Creek Bridge, 7 km. N of jct. with Cazadero Hwy. Comment
  OBI48665  Phacelia californica Joseph Andorfer Ewan 1935-5-12 9225 Sonoma 1.5 mi W of Bodega on Bodega Bay rd Comment
  RSA0045532  Phacelia californica Keith E. Hoffmaster 1946-3-9 s.n. Sonoma Near Bodega. [Label says Marin Co. but actually in Sonoma Co.] Comment
  RSA133558  Phacelia californica L. R. Heckard, Paul C. Silva 1952-4-14 219 Sonoma Along State Highway 1, just south of Goat Rock. Comment
  JEPS128245  Phacelia corymbosa Roger Raiche 2000-3-30 056 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  POM298993  Phacelia distans J. T. Howell 1930-6-8 5274 Sonoma North end of Bodega Bay. Comment
  SD41351  Phacelia distans Edith A. Purer 1932-7-21 4832 Sonoma Bodega Bay Comment
  UC1069266  Phacelia distans H. S. Yates 1934-4-21 3799 Sonoma near Bodega; Sebastopol Quadrangle Comment
  UC126049  Phacelia distans Katharine Brandegee July 1905 Sonoma Bodega Head Comment
  JEPS1968  Phacelia egena F. T. Bioletti 1892-1 Sonoma Sonoma Comment
  UCD160115  Phacelia imbricata James A. Neilson Jr. 1973-6-3 3117 Sonoma Mayacmas Mountains. The Geysers. Site I. (Location and elevation of Site I estimated from Neilson 2994 which has Township/Range data and says that Site I is in Geyser Canyon. Coordinates estimated by label maker.) 853 Comment
  RSA428022  Phacelia imbricata subsp. imbricata Christopher Davidson 1977-6-20 6019 Sonoma Dry Creek Rd., 9.3 miles W of Geyserville. 91 Comment
  CAS-BOT-BC154987  Phalaris Peter Rubtzoff; Nancy Harrison 1978-5-20 9175 Sonoma Todd Road, 1.4 mi. from Hwy. 116 and 0.6 mi. from Llano Road (off N side of road, in Todd Road Wildflower Preserve). Comment
  CAS-BOT-BC329229  Phalaris Peter Rubtzoff 1968-6-25 5913 Sonoma Lichan Marsh. Comment
  RSA0022999  Phalaris Peter Rubtzoff 1975-7-3 8149 Sonoma Kenwood Marsh. Comment
  UCD88336  Phalaris angusta H. S. Yates 1936-5-16 5617 Sonoma California Forest and Range Experiment Station. Near Green Valley School. 91 Comment
  UCD88138  Phalaris aquatica Freed W. Hoffman 1943-6-1 2218 Sonoma Near Guerneville. Lone Mountain Farm. Comment
  UCD88174  Phalaris aquatica Javier Penalosa 1961-5-24 1602 Sonoma Pepper Road. .9 miles N of Petaluma - Valley Ford Road. Comment
  CAS-BOT-BC265841  Phalaris arundinacea Peter Rubtzoff 1962-6-21 4943 Sonoma Laguna de Santa Rosa area northeast of Graton, east of Laguna Road, Sonoma County Marshes Comment
  UCD88569  Phalaris californica P. B. Kennedy 1919-5-16 s.n. Sonoma Del Mar. Comment
  CDA32602  Phalaris californica P. B. Kennedy 1919-5-16 Sonoma Del Mar. 0 Comment
  UC1132423  Phalaris canariensis H. S. Yates 1936-5-16 5621 Sonoma near Green Valley School; Sebastopol Quadrangle Comment
  UC1011001  Phalaris lemmonii Virginia Bufford 1935-5-3 31 Sonoma vicinity Santa Rosa; Santa Rosa vicinity Comment
  UCD88994  Phalaris lemmonii John Thomas Howell 1943-5-10 s.n. Sonoma 2 miles N of Windsor. Comment
  UC1023572  Phalaris minor Virginia Bufford 1936-5-19 259 Sonoma Bennett Valley 2 or 3 mi from Santa Rosa; Bennett Valley Comment
  UC1011003  Phalaris paradoxa Virginia Bufford 1936-5-20 307 Sonoma Mark West Creek Rd about 3 or 4 mi from Redwood Hiway; Mark West Creek Rd. Comment
  UC1011004  Phalaris paradoxa Virginia Bufford 1936-5-20 341 Sonoma Kellogg Mark West Rd 3 mi from Mark West; 3 mi from Mark West Comment
  UCD89350  Phalaris paradoxa A. A. Beetle; G. L. Stebbins Jr. 1942-6-4 3576 Sonoma Corner of Wright Road and Rt. 12 in outskirts of Santa Rosa. Comment
  CAS-BOT-BC253562  Phleum alpinum Alice Eastwood 1915-6-29 4874 Sonoma Bodega Point Comment
  RSA129242  Phleum alpinum H. S. Yates 1936-5-17 5626 Sonoma 1.5 miles E of Bodega Port 122 Comment
  UCD89316  Phleum alpinum P. B. Kennedy 1919-5-16 s.n. Sonoma Del Mar. Comment
  CAS-BOT-BC260878  Phleum pratense Peter Rubtzoff 1958-7-5 3733 Sonoma Atascadero Creek Marsh Comment
  UC50732  Phleum pratense J. Burtt Davy July 1896 Sonoma near Guerneville; near Guerneville Comment
  JEPS69993  Phlox speciosa subsp. occidentalis Milo S. Baker 1928-3-24 2718 c Sonoma 5 mi w Healdsburg (on Jensen ranch) Comment
  CAS-BOT-BC135033  Phoradendron bolleanum Walter Knight; Irja Knight 1963-11-21 418 Sonoma Morelli Land near county dump Comment
  SEINET12230309  Phoradendron bolleanum var. densum F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -163 Sonoma 0.2 mi W on Harrison Grade Road from junction with Stoetz Lane 146 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
  CDA36258  Phyla nodiflora M. Lennox & D. Curle 2011-11-21 PDR# 1465997 Sonoma Hwy 121 Bridge (Tolay Creek). 0 Comment
  UCD138370  Phyllospadix scouleri P. G. Connors 1993-6-6 316 Sonoma Bodega Head and Dunes. Horseshoe Cove. Comment
  UCD113680  Physocarpus capitatus Mary M. Hektner 1975-6-3 208 Sonoma Unit 35-A Owners' Map, Sea Ranch, near State Highway 1. Comment
  CAS-BOT-BC202281  Pickeringia montana var. montana A. A. Heller 1902-6-23 5740 Sonoma Petrified Forest Comment
  CAS-BOT-BC173529  Picris echioides Peter Rubtzoff 1973-8-20 7221 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  CAS-BOT-BC176157  Picris echioides Peter Rubtzoff 1964-7-29 5447 Sonoma Brooks Gulch Marsh. Comment
  RSA796378  Picris echioides Peter Rubtzoff 1955-8-14 2050 Sonoma Forestville Marsh. Comment
  NY61622  Pinus lambertiana Collector unspecified 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
  SEINET3874232 Image available Pinus muricata Ralph R. Wilson 1939-7-25 439 Sonoma North of Ft. Ross.; 0 15 Comment
  UCD134776  Pinus muricata Cathy Hendel 1974-7-25 s.n. Sonoma Sea Ranch, Unit 35-A owner's map, near State Highway 1. Comment
  UCD134794  Pinus muricata Lalit M. Srivastava 1957-11-2 25 Sonoma East side of State Highway 1, ca. 2 miles north of Fort Ross. 30 Comment
  SEINET10612004 Image available Pinus muricata var. borealis Daniel I. Axelrod 1983-7-7 Axelrod E- 3 Sonoma Vicinity of Salt Point, Sate Highway 1. Site on coarse, thickly bedded Eocene marine sandstone. 76 Comment
  CAS-BOT-BC72731  Pinus sabiniana Walter Knight; Irja Knight 1963-9-1 263 Sonoma Asti Comment
  JEPS128340  Piperia transversa Roger Raiche 2010-7-10 032 .10 Sonoma The Cedars. Processing Area. Lower Russian River, Big Austin Creek watershed. Comment
  UCD108193  Pisum sativum Peter H. Raven 1950-4-6 1562 Sonoma Cotoli to Santa Rosa. 152 Comment
  CAS-BOT-BC173584  Plagiobothrys Peter Rubtzoff 1969-5-3 6015 Sonoma Laguna de Santa Rosa, ca. 1 mile east-southeast of Sebastopol. Comment
  CAS-BOT-BC154142  Plagiobothrys Peter Rubtzoff 1972-5-25 6771 Sonoma Laguna, Chileno Valley. Comment
  CAS-BOT-BC154144  Plagiobothrys Peter Rubtzoff 1973-7-24 7198 Sonoma Upper Green Valley Marsh Comment
  CAS-BOT-BC488330  Plagiobothrys bracteatus Ayzik Solomeshch 2009-5-14 s.n. Sonoma 2.3 km SE of city of Sebastopol. Santa Rosa Plain, Cooper Site, pool 1 22 Comment
  RSA639272  Plagiobothrys bracteatus R. F. Thorne 1965-4-19 34276 Sonoma Titus Ranch, Valley Ford. 18 Comment
  RSA788371  Plagiobothrys reticulatus Peter Rubtzoff, H. A. Froebe 1971-5-16 6455 Sonoma Duncans Mills Marsh. Comment
  UC725293  Plagiobothrys reticulatus A. A. Heller 1938-5-14 15081 Sonoma just back of the sea n of bay Bodega Bay Comment
  UCD120863  Plagiobothrys reticulatus Mary M. Hektner 1974-7-5 121 -A Sonoma Unit 35-A Owners' Map, Sea Ranch, near State Highway 1. Comment
  JEPS61047  Plagiobothrys stipitatus var. micranthus Milo S. Baker 1927-4-9 2053 x Sonoma near Forestville; Monroe School Comment
Read comments
May 5 2013
  UC353903  Plagiobothrys stipitatus var. micranthus Milo S. Baker 1927-5-8 2141 a Sonoma summit of Bennett Valley Road Comment
  SD130522  Plagiobothrys tenellus F. Almeda, G. DeNevers 1981-3-30 4892 Sonoma southeast facing slopes just west of the Redwood Canyon. Comment
  CAS-BOT-BC290688  Plantago Peter Rubtzoff 1987-10-17 9876 Sonoma Russian River ca. 6 miles east of Guerneville. Comment
  CAS-BOT-BC290697  Plantago Peter Rubtzoff 1971-6-26 6574 Sonoma Willow Creek Marsh. Comment
  RSA177988  Plantago erecta Robert F. Thorne 1965-4-20 34342 Sonoma Top of Parker Hill ( N end of Parker Hill Road). ca. 3 miles N of Santa Rosa 244 Comment
  SEINET7067234  Plantago erecta A. G. Vestal 1947-5-12 s.n. Sonoma About 1 miles east of Occidental on the Occidental Road and near Taddeuci. Coordinate datum: NAD27. UTM Zone 10, 505861mE, 4250832mN. Comment
  SDSU1027  Plantago erecta D. F. Howe 1972-5-3 4819 Sonoma 4 miles north of Fort Ross. Comment
  UCD158728  Plantago lanceolata Teresa A. Sholars 1976-9-10 s.n. Sonoma Mayacmas Mtns. Ca. 2 mi southeast of the junction of Pine Flat Rd. and Socrates Mine Rd. Elevation estimated by label maker. 853 Comment
  CAS-BOT-BC258397  Plantago lanceolata Peter Rubtzoff 1959-6-20 4159 Sonoma Willow Creek Marsh. Comment
  CAS-BOT-BC6408  Platystemon californicus Alice Eastwood 1899-1-1 s.n. Sonoma Bodega Point Comment
  CAS-BOT-BC92118  Platystemon californicus Alice Eastwood 1915-6-29 4863 Sonoma Bodega Point. Comment
  UC118434  Platystemon californicus Katharine Brandegee 1905-6-25 Sonoma Bodega Head; Cliffs of Bodega Head Comment
  UCSB50178  Platystemon californicus Gray, John 1976-5-1 Sonoma Duncan's Landing; near parking lot; T 6N R 11W 15 Comment
  POM149315  Platystemon californicus var. californicus A. A. Heller, H. E. Brown 1902-3-20 5105 Sonoma Near Windsor. Comment
  CAS-BOT-BC173802  Pleuropogon Peter Rubtzoff 1966-5-7 5708 Sonoma On north side of Hessel Road, just west of Highway 116. Comment
  CAS-BOT-BC173804  Pleuropogon Peter Rubtzoff 1966-4-30 5686 Sonoma On north side of Highway 116, 0.5 miles northwest of Stony Point Road crossing. Comment
  SEINET10717831  Pleuropogon P. Rubtzoff 1966-4-30 Rubtzoff 5686 Sonoma On north side of Highway 116, 0.5 miles northwest of Stony Point Road crossing. Comment
  UC1132563  Pleuropogon californicus H. S. Yates 1937-6-5 6675 Sonoma near Wildwood 121 Comment
Read comments
Jul 28 2008
  UCD90182  Pleuropogon californicus var. californicus R. Tofsrud 1942-4-1 s.n. Sonoma 1/2 mile north of Lewis School, Santa Rosa. Comment
  UC1258194  Pleuropogon hooverianus Paul But 1975-4-1 P 25 Sonoma 0.5 mi from Freestone (along Bohemian Hwy at Freeston Flat Road) Comment
  UCD92179  Poa Beecher Crampton 1955-6-17 2938 Sonoma 1/2 mile south of Guerneville. Comment
  RSA0021491  Poa Peter Rubtzoff 1976-5-30 8560 Sonoma Kenwood Marsh Comment
  CAS-BOT-BC255606  Poa annua Greg de Nevers 1981-4-2 612 Sonoma Pepperwood Ranch. Horse Hill mesa Comment
  UCD90338  Poa annua Beecher Crampton 1955-3-15 2325 Sonoma Sonoma County, town of Asti. Comment
  CAS-BOT-BC255058  Poa compressa Peter H. Raven 1950-4-23 1884 Sonoma Sobre Vista 152 Comment
  UCD91043  Poa douglasii Freed W. Hoffman 1944-7-2 1983 Sonoma near entrance to Bodega Bay. Comment
  UC729987  Poa howellii Leo F. Koch 1940-4-22 829 Sonoma roadside near Little Sulfur Creek; Sulfur Spring Canyon Comment
  UCD91933  Poa pratensis David L. Morgan 1961-4-12 s.n. Sonoma Two Rock Highway, 3 mi. S of Bloomfield. Comment
  CAS-BOT-BC243245  Poa secunda subsp. secunda A. A. Heller 1902-4-9 5245 Sonoma In railroad cut 3 miles S of Healdsburg Comment
  CAS-BOT-BC243255  Poa secunda subsp. secunda G. DeNevers 1981-4-4 622 Sonoma Pepperwood Ranch. By the Studio Comment
  CAS-BOT-BC244195  Poa trivialis Peter Rubtzoff 1959-6-13 4121 Sonoma Willow Creek Marsh Comment
  UCD92135  Poa unilateralis Beecher Crampton 1971-6-6 8719 Sonoma Sonoma Coast State Park at Carmet. Comment
  HSC93551  Pogogyne douglasii G. Fred Hrusa, A. Buckmann 1996-10-5 13586 Sonoma Summit of Mayacmas Range at W end of Diamond Mtn. Rd., 2 mi. SW of Calistoga 700 Comment
  JEPS62432  Pogogyne douglasii W. L. Jepson 1921-6-2 9302 b Sonoma Windsor, just east of Calhoun Ranch Comment
  RSA244745  Pogogyne douglasii subsp. parviflora Peter Rubtzoff 1971-6-23 6549 Sonoma 4.25 miles west of Glen Ellen Comment
  JEPS128235  Polygala californica Roger Raiche 2000-3-30 054 .00 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  POM138788  Polygala californica Michener, Bioletti 1893-5-7 s.n. Sonoma Hood's Peak 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
  UCD148369  Polygonum aviculare subsp. depressum Peter Rubtzoff 1955-8-7 2034 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC109166  Polygonum bolanderi John Thomas Howell 1926-10-3 2213 Sonoma Two miles from Petrified Forest on road to Calistoga. Comment
  CDA2792  Polygonum cuspidatum S. Bradbury 1969-5-7 Sonoma On College Avenue between freeway & Cleveland, Santa Rosa. 0 Comment
  RSA94326  Polygonum hydropiperoides Peter Rubtzoff 1951-9-2 711 Sonoma N of the Lower marsh, in the creek Comment
  SEINET11935785  Polygonum lapathifolium J. T. Vale 1988-1 Sonoma In old bed of Russian River about 1/4 mi below bridge at Hacienda among boulders Comment
  UC1042522  Polygonum punctatum Peter Rubtzoff 1952-10-26 1338 Sonoma Lower Marsh Pitkin Marsh (near Forestville) Comment
  SEINET3873633  Polypodium calirhiza Kaye H. Thorne 1984-11-22 3665 Sonoma Sea Ranch, Black Point near Lodge.; 0 Comment
  CAS-BOT-BC76833  Polypodium glycyrrhiza J. W. Congdon 1892-5-30 s.n. Sonoma Cazadero Comment
  UC1063661  Polypodium scouleri H. S. Yates 1934-4-21 3797 Sonoma near Bodega; Sebastopol Quadrangle Comment
  UC1784201  Polypodium scouleri Ethel Crum 1930-1 748 Sonoma Petaluma Comment
  CAS-BOT-BC232935  Polypogon Peter Rubtzoff 1983-8-28 9673 Sonoma Austin Creek, ca. 0.5 mile N of Highway 116 on Cazadero Road Comment
  CAS-BOT-BC312688  Polypogon Peter Rubtzoff 1986-7-13 9723 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC320505  Polypogon Peter Rubtzoff 1973-8-21 7249 Sonoma Sonoma Creek bottom near Agua Caliente Road crossing west of Agua Caliente. Comment
  CAS-BOT-BC331490  Polypogon Peter Rubtzoff 1973-9-8 7303 Sonoma Russian River at Forest Hills, 5.5 miles east of Guerneville. Comment
  RSA0023070  Polypogon Peter Rubtzoff 1964-7-14 5402 Sonoma Bennett Mountain Lake. Comment
  RSA201192  Polypogon australis Peter Rubtzoff 1955-8-13 2044 Sonoma Duncan Mills Marsh. Upper portion of the marsh. Comment
  UCD51632  Polypogon interruptus P. B. Kennedy 1914-10-1 s.n. Sonoma Del Mar Ranch. Comment
  POM206737  Polypogon monspeliensis A. A. Heller 1902-4-23 5353 Sonoma Near Sonoma. Comment
  SD39929  Polypogon monspeliensis Edith A. Purer 1932-7-24 4082 Sonoma Bodega Bay, stabilized dunes Comment
  UC1023579  Polypogon monspeliensis Virginia Bufford 1936-5-19 257 Sonoma 2 or 3 mi from Santa Rosa (Bennett Valley); Bennett Valley Comment
  RSA93467  Polypogon monspeliensis Milo S. Baker 12390 Sonoma Near creek west of Petrified Forest at Shale Quarry. Comment
  UCD91339  Polypogon monspeliensis P. B. Kennedy 1920-6-16 X 3252 Sonoma Santa Rosa; Field -- Campus -- Berkeley Comment
  CAS-BOT-BC237615  Polypogon viridis Peter Rubtzoff 1959-6-6 4102 Sonoma Willow Creek Marsh Comment
  UC42162  Polystichum californicum F. T. Bioletti 1891-12-25 Sonoma Sonoma Comment
  CAS-BOT-BC72169  Polystichum californicum Walter Knight; Irja Knight; Dr. Stephen W. Edwards 1986-8-17 5510 Sonoma 4.85 miles from end of Mill Creek Road Comment
  SEINET11718541  Polystichum dudleyi W. Knight, Knight, I.; Ellman, P. 1986-1 5851 Sonoma Bouverie Audubon Preserve, 0.75 mi E of parking lot along fire road 46 Comment
  SEINET11719960  Polystichum dudleyi Unknown 1986-1 60589 Sonoma W of Healdsburg, Palmer Creek (tributary of Mill Creek), Palmer Creek Rd 213 Comment
  UC1481826  Polystichum imbricans subsp. imbricans Milo S. Baker 1898-6-11 656 Sonoma Little Sulphur Creek Comment
  UCR222529  Polystichum imbricans subsp. imbricans George K. Helmkamp, E. A. Helmkamp 2010-6-5 16248 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
  SBBG298  Polystichum munitum H. and M. Dearing 1939-5-15 3386 Sonoma N of Fort Ross Comment
  UC62824  Polystichum munitum J. Burtt Davy 1896-3-15 1675 Sonoma Fort Ross Comment
  UCR222555  Polystichum munitum George K. Helmkamp, E. A. Helmkamp 2010-6-5 16243 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-BC376231  Potamogeton Greg de Nevers 1992-6-8 10160 Sonoma Pepperwood Ranch Natural Preserve. 3450 Franz Valley Road 304 Comment
  CAS-BOT-BC251265  Potamogeton nodosus Peter Rubtzoff 1973-8-27 7267 Sonoma Upper Green Valley Marsh area. Comment
  JEPS42986  Potamogeton nodosus Willis L. Jepson 1892-8-7 13767 Sonoma near Geyserville; Russian River Comment
  UC441347  Potamogeton nodosus Milo S. Baker Aug. 1900 Sonoma near Laguna; Mark West Creek Comment
  UCR280145  Potamogeton nodosus Peter Rubtzoff 1971-9-30 6716 Sonoma North Coast Range, Spring Creek Reservoir area 87 Comment
  HSC93482  Potamogeton nodosus G. Fred Hrusa, R. Gross 1997-8-31 14092 Sonoma Foote Ranch, NW base of Mt. St. Helena, NE of int. of Hwy. 128 and Ida Clayton Rd. 107 Comment
  UCD165770  Potamogeton pusillus Peter Rubtzoff 1973-8-27 7269 Sonoma Upper Green Valley Marsh area. Comment
  UC441323  Potamogeton pusillus var. pusillus Milo S. Baker June 1899 Sonoma near Sebastopol Comment
  UCD113695  Potentilla anserina subsp. pacifica Mary M. Hektner; Sue Dakuzaku, Cathy Hendel 1974-7-2 097 Sonoma Unit 28 Owners' Map, Sea Ranch, near State Highway 1. Comment
  JEPS46068  Potentilla anserina subsp. pacifica Eleanor Armstrong May 1932 517 Sonoma Sorrenti Ranch near Camp Meeker, Sorrenti Ranch 106 Comment
  CAS-BOT-BC141649  Potentilla uliginosa Milo S. Baker 1946-8-17 11550 Sonoma Cunningham Marsh within the fence of the Camp Ground, ca 1 1/2 mi. west of the town of Cunningham Comment
  JEPS26116  Proboscidea louisianica subsp. louisianica Peter H. Raven, R. Snow 1958-7-23 13681 Sonoma along US Hwy 101 2.1 mi n junction to Skagg's Springs Comment
  CAS-BOT-BC516401  Prosartes hookeri Greg de Nevers 1993-3-24 10330 Sonoma Weimar Canyon, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Road 304 Comment
  JEPS128324  Prosartes hookeri Roger Raiche 2000-3-26 006 .00 Sonoma The Cedars. Lower Russian, Big Austin Creek watershed. Comment
  CAS-BOT-BC516397  Prosartes hookeri Volney Rattan 1877-1-1 s.n. Sonoma 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
  NY622091  Prunella vulgaris var. atropurpurea A. A. Heller 1902-6-4 5639 Sonoma Santa Rosa Comment
  UC1051657  Prunella vulgaris var. lanceolata Peter Kamb and Francia Chisaki 1950-6-16 1858 Sonoma 1 mi n Sousa Corners (nw of Sebastopol, Pitkin Marsh); Pitkin Marsh Comment
  CAS-BOT-BC159825  Prunus angustifolia Peter Rubtzoff 1952-5-31 1107 Sonoma Western branch of the Upper Marsh. Pitkin Marsh, near Forestville Comment
  CAS-BOT-BC368080  Prunus virginiana var. demissa Greg de Nevers 1998-4-27 11206 Sonoma Calistoga Road at Alpine Road, along Mark West Creek 121 Comment
  UCD113518  Prunus virginiana var. demissa Frederica Bowcutt 1996-5-24 2161 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, just NW of Sonoma/Rattlesnake Creek confluence. 365 Comment
  UCD160855  Pseudognaphalium californicum James A. Neilson Jr.; Teresa A. Sholars 1975-6-26 3282 Sonoma Mayacmas Mountains, south of Caldwell Pines, ca. 3 1/2 miles west of Glenbrook and Bottle Rock Road, northeast Sonoma County. (Elevation and coordinates estimated by label maker.) 975 Comment
  RSA785670  Pseudognaphalium luteoalbum Peter Rubtzoff 1968-8-18 5931 Sonoma Laguna de Santa Rosa, E of Graton, between Occidental and Guerneville roads. Comment
  UCD165870  Pseudognaphalium luteoalbum Peter Rubtzoff 1970-10-3 6403 Sonoma Dune pond near U.C. Bodega Marine Laboratory. Comment
  SBBG22252  Pseudognaphalium stramineum V. Haraden 1941-7-13 4 Sonoma E exposure to bay, Bodega Bay 15 Comment
  SEINET11738932  Pseudotsuga menziesii I. Knight, Knight, W. 1981-1 3980 Sonoma 6.2 mi up Cavedale Road from jct of state route #12 Comment
  OBI35892  Pseudotsuga menziesii var. menziesii David J. Keil 1983-6-29 17207 Sonoma Ca. 10 mi SE of Ft. Ross along Hwy 1 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
  CAS-BOT-BC176178  Psilocarphus Peter Rubtzoff 1971-6-5 6512 Sonoma 4.25 miles west of Glen Ellen on Bennett Valley Road. Comment
  RSA94031  Psilocarphus brevissimus M. S. Baker 1928-5-26 3027 Sonoma Near summit of Bennet Val. Road. Comment
  CAS-BOT-BC361863  Psilocarphus oregonus John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary P. Wells 1981-5-14 53943 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-BC362075  Psilocarphus tenellus G. DeNevers 1981-4-30 889 Sonoma Pepperwood Ranch. At Pippindale Garden Comment
  SEINET7067334  Psilocarphus tenellus var. tenellus A. G. Vestal 1947-5-16 s.n. Sonoma About 4.5 miles East of Windsor on Faught Road. Coordinate datum: NAD27. UTM Zone 10, 521654mE, 4261292mN. Comment
  SEINET12121513  Pteryxia terebinthina var. californica F. H. Utech, Walter, W.; Knight, I. 1984-1 84 -164 Sonoma 0.2 mi W on Harrison Grade Road from junction with Stoetz Lane 146 Comment
  CAS-BOT-BC466277  Pyrola aphylla F. H. Utech; W. Knight; I. Knight 1986-5-15 86 -176 Sonoma The Geysers ca 14.0 mi ESE of Preston and US Hwy 101 on Geysers Road 330 Comment
  CAS-BOT-BC94234  Quercus X eplingii Peter H. Raven 1955-8-27 8757 Sonoma 3.2 mi N of Sears Point on State Route 37 Comment
  UC336261  Quercus X morehus Hy. Edwards April 1877 208 Sonoma Knights Valley Comment
  CAS-BOT-BC104409  Quercus X subconvexa G. DeNevers 1981-9-12 1834 Sonoma Pepperwood Ranch, on S slope of the hill above the Betchel Cabin Comment
  POM166598  Quercus agrifolia A. A. Heller, H. E. Brown 1902-4-15 s.n. Sonoma Santa Rosa Creek Comment
  UC1196504  Quercus agrifolia Joseph P. Tracy 1930-11-30 9272 Sonoma below Knights Valley; North Coast Ranges 152 Comment
  UCD45024  Quercus agrifolia Joseph P. Tracy 1939-10-14 16513 Sonoma Alexander Valley. Foothills 4 miles S.E. of Geyserville. Abundant tree. 121 Comment
  RSA94624  Quercus agrifolia Peter Rubtzoff 1951-8-19 639 Sonoma near Forestville. Pitkin marsh Comment
  SACT002627  Quercus chrysolepis M. Wiesendanger 1927-5-5 Sonoma Comment
  CAS-BOT-BC79570  Quercus dumosa G. De Nevers 1981-9-5 1822 Sonoma In the W arm of the Garrison Canyon Comment
  SEINET12030398  Quercus dumosa W. Knight, Knight, I.; Howell, J. T. 1984-1 5104 Sonoma 2.8 mi up Cavedale Rd from Hwy-12 Comment
  UCD45982  Quercus durata Jennifer Bury; Peggy Herzog 1993-5-8 256 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. 379 Comment
  UCD45936  Quercus durata var. durata Maunsell Van Rensselaer 1941-10-12 s.n. Sonoma Rincon Ridge, Sonoma County, California. Comment
  UC1135605  Quercus garryana J. B. Spring 1932-7-8 102 Sonoma Alta Vista Napa Quad. 304 Comment
  UCD46199  Quercus garryana Roman Gankin 1967-10-4 1078 6 Sonoma (Back crossed to Q. garryana). Near Rocky Mountain, north of Guerneville, Sonoma County, California. Comment
  UCD46076  Quercus garryana var. garryana Frederica Bowcutt 1996-5-19 2138 Sonoma Sugarloaf Ridge State ParkAbout 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. in Adobe Canyon near office and corral. 396 Comment
  UCD46116  Quercus garryana var. garryana Jennifer Bury; Peggy Herzog 1993-5-8 278 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, along Lower Bald Mountain Trail. In meadow, 100 feet above parking lot. 402 Comment
  HSC100879  Quercus garryana var. garryana Peter Warner 2011-6-16 218 Sonoma Jenner Headlands property, ~3 mi. NW of Jenner, lower Russian Gluch, near large rock outcrop downslope from Muniz Ranch Rd., ~400 m N20 deg. E from Hwy. 1 Russian Gulch Bridge. 27 Comment
  POM270134  Quercus garryana var. garryana Lyman Benson 1933-8-23 5687 Sonoma Mark West Springs, Hood's Peak Mt. Range. 305 Comment
  CDA12817  Quercus kelloggii G. F. Hrusa, R. Gross 1996-3-8 12651 Sonoma North Coast Biodiversity Arena; Near intersection of Ida Clayton Rd. and Hwy 128 on Foote Ranch at corner of Ida Clayton Rd. and Hwy. 128. Comment
  CDA31848  Quercus kelloggii D. G. Kelch 2006-10-4 6 .496 Sonoma Entrance to Bouverie Reserve. 2 km N of Agua Caliente along Rte 12. Comment
  POM166601  Quercus kelloggii A. A. Heller, H. E. Brown 1902-3-17 5085 Sonoma Hills 8 miles northeast of Santa Rosa Comment
  RSA169362  Quercus kelloggii L. S. Rose 1964-6-27 64058 Sonoma 2 miles north of Sonoma. 274 Comment
  UC1135655  Quercus kelloggii C. M. Belshaw 1936-3-7 1563 Sonoma 0.25 mi w Trenton; Sebastopol Quad. 182 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-BC62848  Quercus lobata Mary P. Wells 1984-6-18 356 Sonoma Friends House grounds, Rincon Valley, Santa Rosa Comment
  JEPS46673  Quercus lobata W. L. Jepson 1902-11-12 Sonoma Cloverdale Comment
  UCD14498  Quercus wislizeni Steven J. Barnhart 1994-6-5 s.n. Sonoma California, Sonoma Co.; Salt Point State Park east of Highway 1, near junction of fire road up to the meadow and the trail to the Pygmy Forest. Comment
  CDA31008  Quercus wislizeni var. frutescens D. G. Kelch, Troy McGregor 2010-8-22 10 .347 Sonoma Nr Peak of Geyser Peak Rd. 0 Comment
  CDA31302  Quercus wislizeni var. wislizeni D. G. Kelch, Ed Biffin 2010-5-3 10 .207 Sonoma Near old Buena Vista Estate ~3 km E of Sonoma. Comment
  RSA0051271  Ranunculus Greg de Nevers 1996-4-18 10793 Sonoma Knight's Valley Marsh, on Bavarian Lion Ranch, south end of valley. 91 Comment
  CAS-BOT-BC379156  Ranunculus aquatilis var. aquatilis Greg de Nevers 1993-3-7 10319 Sonoma Pepperwood Natural Preserve; 3450 Franz Valley Road, and surrounding sections 00000000000000000000000 305 Comment
  CHSC33026  Ranunculus californicus Jane A. Rogers 1979-4-14 6 Sonoma Ca. 100 yds. e of end of Hart Lane, ca. 1/2 mi. n of intersection of Hwy. 12 and Duer Rd., ca. 1 mi. e of Sebastopol. Field. 27 Comment
  UCSB50246  Ranunculus californicus Gray, John 1976-5-1 Sonoma Bluff above Carment State Beach. T6N R11W. 15 Comment
  CAS-BOT-BC378679  Ranunculus californicus var. californicus Peter Rubtzoff 1957-5-4 3300 Sonoma Duncans Mills Marsh, border of the uper part of Marsh Comment
  CAS-BOT-BC378690  Ranunculus californicus var. californicus Saichi Kawahara 1968-4-20 317 Sonoma Trinity Road, 1 mi northeast of Highway 12 152 Comment
  UC483320  Ranunculus canus Ira L. Wiggins 1932-3-12 5758 Sonoma meadows between Calistoga and Knight's Valley Comment
  POM163785  Ranunculus muricatus Rimo Bacigalupi 1926-4-30 1368 Sonoma Cagadero Comment
  POM281530  Ranunculus orthorhynchus var. bloomeri J. W. Congdon 1880-04 s.n. Sonoma Petaluma. Comment
  UC72899  Ranunculus orthorhynchus var. bloomeri Miss M. Alice King April, 1897 Sonoma near Healdsburg Comment
  RSA178036  Ranunculus orthorhynchus var. bloomeri Robert F. Thorne 1965-4-19 34267 Sonoma Titus Ranch, Valley Ford. 18 Comment
  UCR179424  Rhagadiolus stellatus Caitlin Lewis, William Mutch 1993-4-17 s.n. Sonoma Sugarloaf Ridge State Park, c. 40 air mi N of San Francisco, 11 air mi east of Santa Rosa, and 2.5 mi NE of Kenwood. Adobe Canyon N of Sugarloaf Ridge and south of Red Mountain, near visitor center, along Sonoma Creek 366 Comment
  SEINET12211235  Rhamnus californica W. Knight, Knight, I.; Edwards, S. 1985-1 6330 Sonoma Bradford Mt., NW of Healdsburg 762 Comment
  CAS-BOT-BC55945  Rhamnus crocea G. DeNevers 1981-4-30 893 Sonoma W arm of Garrison Canyon Comment
  CAS-BOT-BC55946  Rhamnus crocea A. A. Heller 1902-6-26 5766 Sonoma Along Sonoma Creek, at the foot of Mt. Hood 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
  CLARK-A1528-5112  Rhododendron occidentale John C. Roos 1957-7-2 6645 Sonoma Miller Ridge Comment
  UC1084452  Rhododendron occidentale G. Thomas Robbins 1937-5-23 204 Sonoma 10 mi w of Santa Rosa (Vine Hill Region, Pitkin Ranch); Vine Hill Region, Pitkin Ranch Comment
  UCR23636  Rhododendron occidentale John C. Roos 1957-7-2 6645 Sonoma Miller Ridge Comment
  CAS-BOT-BC200335  Rhododendron occidentale var. occidentale Peter Rubtzoff 1960-6-11 4502 Sonoma Laguna de Santa Rosa area east of Graton, betw. Occidental and Guerneville rds. Comment
  CAS-BOT-BC200343  Rhododendron occidentale var. occidentale Peter Rubtzoff 1970-6-6 6254 Sonoma Bloomfield Road. 4 1/4 mi. northeast of Bloomfield 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
  RSA93974  Rhynchospora capitellata Peter Rubtzoff 1951-7-22 529 Sonoma Uppermost part of the western branch of the Upper Marsh Comment
  JEPS83544  Rhynchospora globularis var. globularis Jack and Betty Guggolz 1987-6-9 891 Sonoma wet area at n end Pitkin Marsh (on what has been known as the Wilhoff property, now owned by Barry Samuels) Comment
  CAS-BOT-BC111933  Rhynchospora recognita John Thomas Howell 1936-7-26 12678 Sonoma Pitkin Marsh, 5 miles n of Sebastopol. Comment
  UC58224  Ribes californicum A. A. Heller 1903-4-24 6613 Sonoma near Cazadero Comment
  SEINET13942324 Image available Ribes californicum A. A. Heller, H. E. Brown 2002-1 5012 Sonoma Hills East of Santa Rosa Comment
  CAS-BOT-BC169268  Ribes divaricatum Peter Rubtzoff 1957-4-28 3289 Sonoma Duncans Mills Marsh, at the edge of the upper part of the Marsh Comment
  UC1299687  Ribes roezlii Freed W. Hoffman 1947-3-6 808 Sonoma near Guerneville (road to McCray Cabin, headwaters of Gilliam Creek); North Coast Ranges Comment
  CAS-BOT-BC198921  Ribes roezlii var. cruentum A. A. Heller; H. E. Brown 1902-3-31 5195 Sonoma Mt. Hood Comment
  UC75453  Ribes roezlii var. cruentum Milo S. Baker 1898-4-4 23 Sonoma Sea View Comment
  RSA0024683  Ribes roezlii var. cruentum R. C. Bacigalupi 1948-3-6 2857 Sonoma Slopes of Mayacama Range, on road from The Geysers to Geyserville. Comment
  SJSU15311  Ribes sanguineum var. glutinosum Janis L. Tipton 1976-4-18 47 Sonoma Rohert Park, Petaluma Hill Road to Roberts Road 2 miles to Lichau Road, Lichau Creek. 121 Comment
  UC11671  Ribes victoris F. T. Bioletti Mar 1891 Sonoma Watson's Canyon Comment
  CAS-BOT-BC74694  Rorippa curvisiliqua Peter Rubtzoff 1955-9-10 2143 Sonoma Vacation Beach, near Guernville. Bank of Russian River. Comment
  CAS-BOT-BC74695  Rorippa curvisiliqua Peter Rubtzoff 1956-9-21 2936 Sonoma Vacation Beach, near Guernville. On Russian River bottom. Comment
  CAS-BOT-BC74696  Rorippa curvisiliqua Peter Rubtzoff 1958-5-17 3662 Sonoma Laguna de Santa Rosa north of Sebastopol (near Occidental Road). Comment
  CAS-BOT-BC74707  Rorippa curvisiliqua Peter Rubtzoff 1965-8-16 5594 A Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC74714  Rorippa curvisiliqua Peter Rubtzoff 1974-6-2 7517 Sonoma Upper Green Valley Marsh. Comment
  CAS-BOT-BC74715  Rorippa curvisiliqua Peter Rubtzoff 1976-9-25 8902 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC74716  Rorippa curvisiliqua Peter Rubtzoff 1986-9-28 9750 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  UC117540  Rorippa palustris Michener and Bioletti 1892-5-15 Sonoma S. L. G. Comment
  CAS-BOT-BC74850  Rorippa palustris var. palustris Volney Rattan 1877-6-15 s.n. Sonoma Guerneville. Comment
  POM89567  Rosa californica Marcus E. Jones 1882-7-18 s.n. Sonoma Duncan's Mills. Comment
  SDSU9226  Rosa gymnocarpa D. F. Howe 1963-7-2 3576 Sonoma 3.5 miles E of Guerneville on #12 . 30 Comment
  CAS-BOT-BC146775  Rosa gymnocarpa G. DeNevers 1982-5-18 2034 Sonoma Near Redwoods end at the Redwoods Comment
  UC467684  Rosa gymnocarpa H. P. Chandler 1907-4-27 7542 Sonoma above 2nd reservoir (St. Helena to Santa Rosa) Comment
  NY415883  Rosa sonomensis L. Greene 1888-9-30 s.n. Sonoma Comment
  JEPS117050  Rotala ramosior Peter Warner 2008-8-26 91 Sonoma Lower Pitkin Marsh, 1 mi SE of Forestville, on Sonoma Land Trust parcel, N of primary stream channel, in small drainage downslope from adjacent, off-site water impoundment (pond). 41 Comment
  UCD113763  Rubus armeniacus Mary M. Hektner 1975-8-14 221 Sonoma on fence along State Highway 1, just north of Galleons Reach, Sea Ranch. Comment
  CAS-BOT-BC147992  Rubus leucodermis H. E. McMinn 1922-6-17 191 Sonoma By Monte Rio Comment
  POM91634  Rubus macropetalus Marcus E. Jones 1882-7-18 s.n. Sonoma Duncan's Mills. Comment
  CAS-BOT-BC147184  Rubus parviflorus Alice Eastwood; John Thomas Howell 1939-6-11 74 ? Sonoma Near [Triniti] Trinity P.O., Hood Mt. Range Comment
  UC12978  Rubus parviflorus J. Burtt Davy 1896-3-14 1679 Sonoma Fort Ross Comment
  CAS-BOT-BC157175  Rubus ursinus Mrs. E. C. Sutliffe 1920-7-18 s.n. Sonoma Annapolis Comment
  UCD114018  Rubus ursinus M. Wiesendanger 1927-5-5 723 Sonoma Kenwood Springs. Comment
  CAS-BOT-BC173548  Rumex Peter Rubtzoff 1964-7-29 5444 Sonoma Brooks Gulch Marsh. Comment
  CAS-BOT-BC422232  Rumex acetosella Peter Rubtzoff 1952-3-22 871 Sonoma Pitkin Marsh, near Forestville. Area separating the western branch of the Upper Marsh from the eastern. Comment
  CAS-BOT-BC422234  Rumex acetosella Walter Knight; Irja Knight 1963-8-13 410 Sonoma Horseshoe Cove Comment
  CAS-BOT-BC433408  Rumex crispus John Thomas Howell 1955-8-6 30892 Sonoma 1 mile southeast of Bloomfield on road to Two Rock Comment
  CAS-BOT-BC433410  Rumex crispus Mary P. Wells 1984-5-30 317 Sonoma Friends House, Rincon Valley, Santa Rosa Comment
  SEINET11933971  Rumex crispus W. Knight, Knight, I. 1984-1 5421 Sonoma Along floodplain of Petaluma River. Gilardi's Resort 3 Comment
  UCR279637  Rumex fueginus Peter Rubtzoff 1958-9-27 4007 Sonoma Laguna de Santa Rosa, northeast of Graton, near Guerneville Road 18 Comment
  RSA783835  Rumex fueginus Peter Rubtzoff 1963-10-5 5286 Sonoma Laguna de Santa Rosa. E of Graton. Comment
  UCD148412  Rumex obtusifolius Peter Rubtzoff 1959-6-20 4167 Sonoma Willow Creek Marsh. Comment
  CAS-BOT-BC433738  Rumex occidentalis J. W. Congdon 1880-5-23 s.n. Sonoma Petaluma Comment
  CAS-BOT-BC433851  Rumex pulcher D. E. Breedlove 1980-6-27 44735 Sonoma Pepperwood Ranch W of Knights Valley Comment
  SDSU9724  Rumex pulcher D. F. Howe 1963-7-2 3579 Sonoma 4.2 miles N of juction with #12, on #1. Comment
  CAS-BOT-BC239853  Rytidosperma penicillatum J. C. Roos 1957-7-2 6651 Sonoma Miller Ridge Comment
  CAS-BOT-BC249309  Sagina Peter Rubtzoff 1956-9-14 2886 Sonoma Vacation Beach near Guerneville, along Russian River. Comment
  CAS-BOT-BC320558  Sagina Peter Rubtzoff 1974-5-18 7408 Sonoma Todd Road 1.4 miles from Highway 116 and 0.6 miles from Llano Road. Comment
  JEPS90776  Sagina decumbens subsp. occidentalis Dean W. Taylor 1994-5-4 14225 Sonoma 1.8 mi n of Camp Meeker (along Bohemian Highway, Dutch Bill Creek drainage just downstream from confluence with Duvol Creek); North Coast Ranges, Bohemian Highway 76 Comment
  RSA262225  Sagittaria calycina Peter Rubtzoff 1970-8-18 6305 Sonoma 5 mi N of Sears Point. Comment
  CAS-BOT-BC445695  Sagittaria cuneata Peter Rubtzoff 1971-8-20 6641 Sonoma 5 mi. north of Sears Point. Comment
  CAS-BOT-BC445776  Sagittaria latifolia Peter Rubtzoff 1963-10-9 5296 Sonoma Laguna de Santa Rosa east of Graton. Comment
  CAS-BOT-BC445780  Sagittaria latifolia John Thomas Howell 1946-8-17 22879 Sonoma The Laguna just east of Sebastopol Comment
  CAS-BOT-BC445803  Sagittaria montevidensis Peter Rubtzoff 1970-8-18 6305 Sonoma 5 mi. north of Sears Point. Comment
  CAS-BOT-BC157666  Salicornia Peter Rubtzoff 1963-8-17 5222 Sonoma Petaluma Creek just east of Petaluma. Comment
  UCD99149  Salicornia pacifica D. Sanchez-Mata; M. G. Barbour 1996-4-12 s.n. Sonoma S. Pablo Bay. S. Pablo National Wildlife Refuge. 5 Comment
  RSA0037217  Salix Peter Rubtzoff 1971-9-1 6679 Sonoma Spring Creek Reservoir area. Comment
  CAS-BOT-BC135955  Salix alba subsp. vitellina Walter Knight; Irja Knight 1987-3-16 6010 Sonoma Corner Adobe Rd. & Stage Gulch Rd. Comment
  RSA534607  Salix bonplandiana Peter Rubtzoff 1960-5-29 4421 Sonoma Laguna de Santa Rosa near Trenton (S of Woodsey Road). Comment
  SEINET11998392  Salix bonplandiana W. Knight, Knight, I. 1988-1 6208 Sonoma Hacienda, along Russian River Comment
  UC517471  Salix breweri John Thomas Howell 1933-4-2 10940 Sonoma Sonoma Creek Canyon Mt. Hood Comment
  UC1134887  Salix exigua var. hindsiana H. S. Yates 1934-4-21 3818 Sonoma near Monte Rio; Duncan Mills Quadrangle Comment
  UC490514  Salix exigua var. hindsiana Joseph P. Tracy 1932-5-8 9899 Sonoma in river bed Geyserville; Northern Coast Ranges Comment
  UC66167  Salix exigua var. hindsiana A. A. Heller 1902-4-18 5328 Sonoma on Russian R. near Windsor Comment
  CAS-BOT-BC107755  Salix hindsiana G. De Nevers 1981-3-14 535 Sonoma Pepperwood Ranch - Pippindale farm, 7 mi. NE of Santa Rosa near Mark West Lodge. Leslie Creek, 100 m upstream from the junction. Comment
  CAS-BOT-BC107798  Salix hindsiana Walter Knight; Irja Knight 1963-9-14 254 Sonoma North roadside, Storny Pt. Road 1/2 mi. W. Railroad Ave. Comment
  UC66170  Salix laevigata A. A. Heller 1902-4-23 5348 Sonoma near Sonoma Sonoma Comment
  UC353926  Salix lasiandra subsp. lasiandra Milo S. Baker 1928-3-17 2732 Sonoma 1 mi. e. of town Santa Rosa Creek Comment
  UC511618  Salix lasiandra subsp. lasiandra W. A. Setchell 1933-7-13 Sonoma Monte Rio Bohemian Grove (opposite iron warehouse on R.R.); , Monte Rio Comment
  CAS-BOT-BC128061  Salix lasiandra var. lasiandra Peter Rubtzoff 1952-3-23 891 Sonoma Pitkin Marsh, near Forestville, south of Upper Marsh Comment
  CAS-BOT-BC128100  Salix lasiandra var. lasiandra Peter Rubtzoff 1951-8-18 626 Sonoma Pitkin Marsh, near Forestville, western branch of the Upper Marsh Comment
  CAS-BOT-BC128051  Salix lasiandra var. lasiandra Walter Knight; Irja Knight; Dr. Steve Edwards 1986-9-9 5250 Sonoma Norborn Road, near Sonoma Comment
  CAS-BOT-BC107092  Salix lasiolepis Peter Rubtzoff; J. Eckenwalder 1973-10-3 7333 Sonoma along Salmon Creek 0.75 mi. northwest of Freestone Comment
  CAS-BOT-BC107094  Salix lasiolepis Peter Rubtzoff; T. J. Crovello 1964-9-3 5497 Sonoma Brooks Gulch Marsh Comment
  UC453092  Salix lasiolepis W. A. Setchell 1931-7-25 12 Sonoma Bohemian Grove Russian River (lower bank of river, near Monte Rio) Comment
  UC511620  Salix lasiolepis W. A. Setchell 1933-7-2 2 Sonoma Bohemian Grove Monte Rio (well away from Russian River) Comment
  UCD111636  Salix lasiolepis G. F. Hrusa 1998-3-15 14153 B Sonoma Hwy 128 at Lake Hennessey. 175 Comment
  RSA31743  Salix lasiolepis A. A. Heller 1900-3-18 5097 Sonoma Santa Rosa Creek. Near Santa Rosa. Comment
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May 1 2014
  CAS-BOT-BC107354  Salix lasiolepis var. bigelovii Alice Eastwood 1915-6-29 4809 Sonoma Bodega Point Comment
  UCD111783  Salix melanopsis W. A. Setchell 1931-8-1 s.n. Sonoma Bohemian Grove, near Monte Rio. Comment
  CAS-BOT-BC126183  Salix scouleriana W. A. Setchell 1934-7-10 5 Sonoma Coast Highway above Fort Ross Comment
  SJSU192  Salix scouleriana Baker, Ball, Bracelin & Crum 1931-5-9 342 Sonoma 2 km E of Occidenta on Occidental Grade Comment
  UC437360  Salix scouleriana W. P. Taylor 1913-6-11 Sonoma Freestone Comment
  CAS-BOT-BC126189  Salix scouleriana Walter Knight; Irja Knight 1964-2-27 558 Sonoma 2 mi. S. Gualala on [hiway] highway #1 Comment
  LA208587  Salix sitchensis W. A. Setchell; 1934-7-10 7 Sonoma Coast Highway, N of Fort Ross Comment
  SJSU218  Salix sitchensis Baker, Ball, Bracelin & Crum 1931-5-9 344 Sonoma c. 2 km E of Bodega Bay Comment
  UC1173579  Salix sitchensis Joseph P. Tracy 1935-8-18 14743 Sonoma w. of Knight's Valley (Mayacamas Creek); Mayacamas Creek 152 Comment
  UC453081  Salix sitchensis W. A. Setchell 1931-7-25 3 Sonoma above Russian R. at Bohemian Grove near Monte Rio Comment
  UC453107  Salix sitchensis W. A. Setchell 1931-7-31 21 Sonoma Bodega Bay Comment
  UC482108  Salix sitchensis Ball, Bracelin, Parks and Parks 1931-4-21 36 Sonoma 25 km. n.w. Calistoga (Maacama Creek); Maacama Creek Comment
  UC498691  Salix sitchensis Annetta Carter 1933-2-18 254 Sonoma 185 yds. from ocean Fort Ross (beside creek) 3 Comment
  OBI48690  Salvia sonomensis Michener & Bioletti, Bioletti June1893 s.n. Sonoma Hoods Peak Comment
  POM62660  Salvia sonomensis A. A. Heller, H. E. Brown 1902-3-31 12297 Sonoma Mt. Hood Comment
  RSA396195  Salvia sonomensis F. H. Utech, Walter Knight, I. Knight 1984-4-16 84 -99 Sonoma ca 4.0 mi NNW of Sanoma on Cavedale Road from junction with CA hwy 12; ca 1.6 mi N on Cavedale Road from junction 396 Comment
  CAS-BOT-BC225215  Salvia sonomensis Wayne Roderick 1967-4-28 s.n. Sonoma Cavedale Road n. of Sonoma 457 Comment
  OBI39520  Sambucus racemosa var. racemosa F. H. Utech, Walter and Irja Knight, Irja Knight 1984-4-17 84 -160 Sonoma Ca 5.0 mi E of Bridgehaven on Willow Creek rd 145 Comment
  CHSC60066  Sanicula arctopoides E. L. Knight 1988-4-1 3 Sonoma Ca 0.25 m ene of southernmost point of Bodega Head and 100 ft n of Pacific Ocean. 15 Comment
  CAS-BOT-BC223343  Sanicula bipinnatifida Alice Eastwood 1921-5-8 10438 Sonoma Petaluma Comment
  UCD127978  Sanicula crassicaulis Mary M. Hektner; Cathy Hendel; Sue Dakuzaku 1974-6-26 074 Sonoma Unit 3 Owners' Map, Sea Ranch, near State Highway 1. Comment
  UC875544  Sanicula tuberosa Alice Eastwood 1918-5-1 6809 Sonoma Mount St. Helena Comment
  UCD114698  Sanicula tuberosa Christopher Mallek 2008-1 HC12- 13 Sonoma Hooker Canyon. 590 Comment
  CAS-BOT-BC251239  Saponaria Peter Rubtzoff 1955-8-7 2028 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC251245  Saponaria Peter Rubtzoff 1967-8-18 5849 Sonoma 6 miles east of Guerneville. Comment
  CAS-BOT-BC361296  Sarcococca Greg de Nevers 1997-5-5 10990 Sonoma Santa Rosa, Kaiser hospital, Mendocino Avenue 30 Comment
  JEPS82982  Saxifraga californica Patrick Elvander 1982-3-27 1021 Sonoma 2.2 mi on road to Sugarloaf State Park (from Hwy 12, 7 mi e of Santa Rosa) Comment
  POM142444  Saxifraga mertensiana A. A. Heller 1903-4-24 6616 Sonoma Woods near Cazadero. Comment
  UC21368  Scandix pecten-veneris F. T. Bioletti Jun 1891 Sonoma Kenwood Comment
  UC796641  Scandix pecten-veneris Ira L. Wiggins 1949-4-30 12059 Sonoma 6.8 mi e of Santa Rosa (on road to Calistoga) Comment
  CAS-BOT-BC283141  Schedonorus arundinaceus G. De Nevers 1981-5-30 1387 Sonoma Pepperwood Ranch Comment
  CAS-BOT-BC111432  Schoenoplectus acutus var. occidentalis Peter Rubtzoff 1958-8-31 3955 Sonoma Atascadero Creek Marsh. Comment
  CAS-BOT-BC111434  Schoenoplectus acutus var. occidentalis Mary P. Wells 1987-5-17 s.n. Sonoma Marsh by Llano Road Comment
  CAS-BOT-BC111531  Schoenoplectus americanus Peter Rubtzoff 1970-5-16 6223 Sonoma 5 mi north of Sears Point. Open, wet margin of a pond. Comment
  RSA540070  Schoenoplectus californicus Peter Rubtzoff 1960-10-29 4573 Sonoma Bodega Harbor Marsh. Comment
  UCD50153  Schoenoplectus pungens var. badius Mary M. Hektner 1975-6-3 201 Sonoma Unit 28 Owner's Map, Sea Ranch, near State Highway 1, Sonoma County, California. Comment
  CAS-BOT-BC111836  Schoenoplectus tabernaemontani Peter Rubtzoff 1955-7-9 1930 Sonoma Forestville Marsh. Comment
  UCR255465  Scirpus koilolepis Ann Howald 2014-5-2 3001 Sonoma North Coast, c. 1.5 mi southeast of Del Mar Point 23 Comment
  UCR249041  Scirpus maritimus Peter Rubtzoff 1974-9-7 7873 Sonoma Hinebaugh Creek in Rhonert Park, creek bed west of Commerce Blvd. crossing 29 Comment
  CAS-BOT-BC111107  Scirpus microcarpus Peter Rubtzoff 1951-8-4 583 Sonoma A marshy opening south of the Upper Marsh, at the edge of a thicket. Comment
  UCD141248  Scirpus microcarpus Mary M. Hektner 1976-10-19 271 Sonoma just south of Irena Morgan's house on Pacific Reach, Unit 24 Owner's Map, Sea Ranch. Comment
  UC841014  Scirpus pungens Marcus E. Jones, A. M. 1882-7-18 3526 Sonoma Duncan's Mills Comment
  CAS-BOT-BC516414  Scoliopus bigelovii Alfaretta Wood No date on label. s.n. Sonoma Duncan's Mill Comment
  RSA135352  Scoliopus bigelovii Volney Rattan 1880 Sonoma Duncans Mill. Comment
  SEINET12057679  Scoliopus bigelovii F. H. Utech, Knight, W.; Knight, I. 1988-3-1 88 -002 Sonoma WNW of Sebastapol, 0.2 mi S of Occidental Road on Furlough Road, Sturgeon's Mill 80 Comment
  SEINET12058068  Scoliopus bigelovii F. H. Utech, Knight, W.; Knight, I. 1988-3-1 88 -006 Sonoma 5.75 mi W of jct of Willow Creek Rd & Coleman Valley Rd on former near headwater of Willow Creek 60 Comment
  SEINET12058075  Scoliopus bigelovii F. H. Utech, Knight, W.; Knight, I. 1988-3-1 88 -003 Sonoma ca 0.15 mi SE from East Avenue junction with Bohemian Rd on latter to Occidental from Camp Meeker 140 Comment
  JEPS128174  Scrophularia californica Roger Raiche 2001-5-29 041 .01 Sonoma The Cedars. Lower Russian River, Big Austin Creek watershed. Comment
  UCD161244  Scrophularia californica James A Neilson Jr.; Teresa A. Sholars 1976-5-10 3694 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
  UCR249357  Scrophularia californica Peter Rubtzoff 1960-5-22 4412 Sonoma Laguna de Santa Rosa, east of Graton, between Occidental and Guerneville roads 37 Comment
  UCD160919  Scutellaria californica James A. Neilson Jr. 1975-7-8 3382 Sonoma Mayacmas Mountains. Three hundred yards north of Little Geysers. Exact location unknown. Coordinates and elevation estimated by label maker.) 731 Comment
  RSA73968  Sedella pumila Milo S. Baker 1952-4-20 12399 Sonoma East side of Hwy 12 on outcrop of [tuff?] and ca. 0.25 miles N of Caliente. Comment
  CAS-BOT-BC63940  Sedum radiatum subsp. radiatum J. Clausen 1935-5-23 1076 Sonoma 1.2 miles S of Petrified Forest. Comment
  CAS-BOT-BC363430  Senecio aronicoides A. A. Heller; H. E. Brown 1902-4-11 5264 Sonoma Bodega Bay Comment
  UC480625  Senecio aronicoides Carl Meyer 1928-3-3 308 Sonoma Santa Rosa Comment
  UC201784  Senecio glomeratus P. B. Kennedy 1914-10-1 Sonoma Del Mar Ranch Comment
  SEINET11807204  Senecio jacobaea W. Knight, Knight, I. 1984-1 5113 Sonoma near junction Hwy 1 & Headlands Beach Rd, Sea Ranch Comment
  UCR279612  Senecio minimus Peter Rubtzoff 1955-9-24 2150 Sonoma Duncan Mills Marsh, upper portion of marsh 9 Comment
  UCD135625  Senecio minimus Mary M. Hektner; Cathy Hendel 1974-7-26 179 Sonoma Unit 24 Owners' Map, Sea Ranch, near State Highway 1. 30 Comment
  SEINET10612339  Sequoia sempervirens A. Arthur Heller, H. E. Brown 1902-3-16 Heller 5080 Sonoma Russian River, Near Trenton. Comment
  UCR250224  Setaria parviflora Peter Warner 2013-8-12 295 Sonoma Green Valley Road, 0.15 mi east of junction with Bones and Maddocks Roads 87 Comment
  CDA39792  Setaria parviflora Peter Warner 2013-8-12 295 Sonoma Green Valley Road, 0.15 miles east of junction with Bones and Maddocks Roads. Comment
  UC189198  Sidalcea calycosa J. W. Congdon 1880-5-6 Sonoma Petaluma Comment
  UC871431 Image available Sidalcea calycosa Marcus E. Jones, A. M. 1882-7-18 Sonoma Duncan's Mills Comment
  CAS-BOT-BC187890  Sidalcea calycosa subsp. rhizomata J. W. Congdon 1880-5-1 s.n. Sonoma Petaluma Comment
  SEINET11994390  Sidalcea diploscypha F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -162 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd 120 Comment
  SEINET7042401  Sidalcea diploscypha A. G. Vestal 1947-5-12 s.n. Sonoma 1 mile east of Occidental. Camp Meeker quadrangle UTM Zone 10, 505500mE, 4251757mN. Comment
  UCD169969  Sidalcea hickmanii subsp. viridis L. Coats 1983-5-17 23 Sonoma Highway 1, 4.3 miles north of entrance to Salt Point State Park. 21 Comment
  CAS-BOT-BC213168  Sidalcea oregana subsp. valida Milo S. Baker 1932-8-15 6013 Sonoma Marshy road ditch just W. of Kenwood. Comment
  JEPS83543  Sidalcea oregana subsp. valida Jack and Betty Guggolz 1987-8-29 893 Sonoma w end Kenwood Marsh (about 50 m e of the Warm Springs Road) Comment
  UCD166326  Silene Peter Rubtzoff 1967-8-28 5860 Sonoma Hillside depression southeast of Lower Salmon Creek Marsh. Comment
  POM127093  Silene californica L. R. Abrams 1922-6-21 8097 Sonoma Healdsburg to Cloverdale. Comment
  UC1084461  Silene gallica G. Thomas Robbins 1937-6-5 224 Sonoma about 10 mi w Santa Rosa (Pitkin Ranch, Vine Hill region); Vine Hill Region, w of Santa Rosa, Pitkin Ranch Comment
  UC1137860  Silene gallica H. S. Yates 1934-4-22 3856 Sonoma 2 mi s Mark West; Calistoga Quad., s of Mark West Comment
  UCR253369  Silene gallica Peter Rubtzoff 1974-5-25 7456 Sonoma Upper Green Valley Marsh 76 Comment
  UCR253372  Silene gallica Peter Rubtzoff 1969-8-14 6134 Sonoma Along Salmon Creek, c. 0.5 mile upstream from Hwy #1 3 Comment
  CAS-BOT-BC392495  Silene gallica G. DeNevers 1981-5-9 1064 Sonoma Pepperwood Ranch; Along the road at the aluminum gate above the Strebel Homestead. Comment
  UCD98632  Silene gallica Botany 102 Students 1993-5-8 280 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 less than 1 air mile S of Red Mountain, N of Sonoma Creek. Comment
  UCD98711  Silene gallica Rimy Waraich; Patti Togioka 1993-5-8 240 Sonoma Sugarloaf Ridge State Park, about 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Ponygate Trail. 365 Comment
  SEINET4856109  Silene grandis Alice Eastwood 1900-7-4 s.n. Sonoma Bodega Point. Comment
  CAS-BOT-BC389884  Silene scouleri subsp. scouleri Alice Eastwood 1899-6-1 s.n. Sonoma Bodega Point Comment
  CAS-BOT-BC364814  Silybum marianum Peter Rubtzoff 1951-7-21 479 Sonoma Pitkin Marsh, near Forestville. Southern half of Lower Marsh Comment
  CAS-BOT-BC75327  Sisymbrium officinale Clare R. Wheeler 1978-3-30 139 Sonoma Pine Mountain Road, 4 miles northeast of Cloverdale. 548 Comment
  UCD164685  Sisyrinchium Peter Rubtzoff 1976-5-30 8573 Sonoma Kenwood Marsh. Comment
  CHSC34405  Sisyrinchium bellum Jeffrey D. Prouty 1979-4-11 216 Sonoma CA. 7 mi. n of Santa Rosa. Mark West Springs Road, ca. 300 yards n of juct. with Michelle Way. 137 Comment
  UCR274881  Sisyrinchium bellum Carolyn McNeill 1969-5-25 s.n. Sonoma North Coast Range, north side of Warm Springs Road, 1 mile west of town of Glen Ellen, near entrance to Jack London State Park 91 Comment
  CAS-BOT-BC164423  Solanum Peter Rubtzoff 1962-9-9 5079 Sonoma Brooks Gulch Marsh. Comment
  CAS-BOT-BC164416  Solanum Peter Rubtzoff 1960-9-17 4568 Sonoma Laguna de Santa Rosa, near Trenton (south of Woolsey Road). Comment
  UCD126816  Solanum americanum C. B. Heiser; D. Heiser 1946-4-14 s.n. Sonoma Bodega Bay. Comment
  SEINET6035513  Solanum furcatum Unknown 1958-8-17 3889 Sonoma Laguna de Santa Rosa. Northeast of Graton (near Guerneville Road). Comment
  SEINET11807811  Solidago occidentalis W. Knight, Wagnon, K. 1987-1 6106 Sonoma Willow Brook, N of Petaluma Comment
  OBI76737  Solidago velutina G. S. Ringius 1982-8-7 1495 Sonoma 8 km N of Bodega on Hwy 1 Comment
  CAS-BOT-BC365260  Solidago velutina subsp. californica Barbara Dows 1907-7-12 s.n. Sonoma Sebastopol Comment
  CAS-BOT-BC374526  Sonchus asper John Thomas Howell 1932-9-18 10776 Sonoma Kenwood Marsh Comment
  CAS-BOT-BC374530  Sonchus asper Peter Rubtzoff 1951-7-7 359 Sonoma Western branch of the Upper Marsh. Pitkin Marsh, near Forestville Comment
  CDA32940  Sonchus oleraceus D. Barbe & P. Hiatt 1979-5-1 Sonoma South of Asti; on Asti Road, 0.45 mile south of Washington School Road. 0 Comment
  UCD136182  Sonchus oleraceus Mary M. Hektner; Cathy Hendel, Sue Dakuzaku 1974-7-2 103 Sonoma Near State Highway 1, Sea Ranch, Unit 28 Owner's Map. Comment
  UC1099917  Sparganium emersum var. emersum Malcolm A. Nobs and S. Galen Smith 1949-8-1 1109 Sonoma 2 mi e Stewart's Point (on road to Beyserville) Comment
  SEINET7420494  Spartium junceum J. Landers 1974-9-28 s.n. Sonoma 5 miles west of Rio Nido. 91 Comment
  CAS-BOT-BC258919  Spergula Peter Rubtzoff 1958-9-28 s.n. Sonoma Vacation Beach near Guerneville, along Russian River. Comment
  CAS-BOT-BC390051  Spergula arvensis Walter Knight; Irja Knight 1963-12-25 432 Sonoma Magnolia & Marshall Aves. Comment
  CAS-BOT-BC258926  Spergularia Peter Rubtzoff 1965-8-29 5625 Sonoma Russian River bottom at Forest Hills, 5.5 miles east of Guerneville. Comment
  CAS-BOT-BC390976  Spergularia marina G. B. Rossbach; R. P. Rossbach 1938-5-27 630 Sonoma Bodega Bay Comment
  CAS-BOT-BC320523  Spergularia rubra Peter Rubtzoff 1974-7-29 7789 Sonoma Forest Hills, 5.5 miles east of Guerneville, along Russian River. Comment
  UCR254753  Spiranthes porrifolia Peter Rubtzoff 1969-6-27 6103 Sonoma 6.5 miles NE of Penngrove on Lichau Road 427 Comment
  CAS-BOT-BC500700  Stachys Peter Rubtzoff 1962-6-13 4910 Sonoma Freestone Marsh Comment
  UC416741  Stachys ajugoides var. rigida Katharine Brandegee Sonoma Bodega Comment
  UCD125557  Stachys albens Frederica Bowcutt 1994-6-24 1893 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. Vista Trail about 1/4 way from bald Mountain Trail to Headwaters Trail. 554 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
  UCD126053  Stachys rigida var. quercetorum E. Frost 1996-5-26 25 Sonoma Mt. St. Helena, 150 yards in along hiking trail. 609 Comment
  UCD126062  Stachys rigida var. quercetorum Terri Williamson 1990-5-20 55 Sonoma Bayflat Road, Bodega Bay. 3 Comment
  UCD126054  Stachys rigida var. quercetorum D. G. Heiser 1946-4-14 s.n. Sonoma Bodega Bay. Comment
  CAS-BOT-BC251255  Stellaria borealis subsp. sitchana Peter Rubtzoff 1955-6-4 1901 Sonoma Forestville Marsh. Comment
  UC1057441  Stellaria media G. Thomas Robbins 1937-3-27 46 Sonoma Santa Rosa Comment
  UCD166456  Stellaria media Peter Rubtzoff 1954-9-6 1736 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC397768  Stellaria media G. DeNevers 1981-3-30 582 Sonoma Pepperwood Ranch; Garrison House Comment
  RSA74473  Streptanthus barbiger Milo S. Baker 1947-7-15 11868 Sonoma 2 miles NE of Occidental, along Harrison Grade Comment
  UC956501  Streptanthus barbiger Freed W. Hoffman 1948-6-16 2341 Sonoma Dorr's Cabin North Coast Ranges, upper East Austin Creek Comment
  JEPS26976  Streptanthus glandulosus subsp. secundus W. L. Jepson 1904-5-29 2430 Sonoma Mark West Creek Comment
  UC1492783  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1950-5-21 3397 Sonoma Coleman Valley North Coast Ranges Comment
  UC1492788  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1950-5-24 3395 Sonoma headwaters of East Austin Creek North Coast Ranges, The Island Comment
  UC985954  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1949-5-29 2787 Sonoma somewhat e of first <b>end in road after crossing stream on way n from Jenner North Coast Ranges, Russian Gulch 15 Comment
  UC985968  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1949-5-22 Sonoma Gabe's Rock North Coast Ranges, Poole Ridge (1.0 mi nw of Guerneville) 213 Comment
  CAS-BOT-BC87289  Streptanthus glandulosus subsp. secundus Milo S. Baker 1932-5-8 5916 Sonoma Salt Point, 5 miles north of Fort Ross. Comment
  NY185747  Streptanthus glandulosus subsp. secundus F. W. Hoffman 1948-6-8 2323 Sonoma North Coast Ranges; Great Eastern Quicksilver Mine near Guerneville Comment
  UC1492784  Streptanthus glandulosus subsp. secundus Freed W. Hoffman 1950-5-27 3363 Sonoma near Porter Creek; North Coast Ranges, Fred McMurray Ranch Comment
  CAS-BOT-BC87303  Streptanthus glandulosus subsp. sonomensis Doreen Smith 2003-5-1 s.n. Sonoma Coleman Valley Road. South of the road. Comment
  UC956621  Streptanthus morrisonii subsp. morrisonii Freed W. Hoffman 1946-9-26 1020 Sonoma Layton Chromite Mine North Coast Ranges, Big Austin Creek (headwaters of creek); headwaters of Big Austin Creek at Layton Chromite Mine, Sonoma Co. Comment
  JEPS2877 Image available Streptanthus tortuosus Michener and Bioletti 1893-6-7 Sonoma Hoods Peak; ; Hoods Peak, Sonoma Co. Comment
  CAS-BOT-BC423045  Stylomecon heterophylla L. R. Abrams 1918-4-28 s.n. Sonoma Nr. Burbanks Garden, Santa Rosa Comment
  UCD166492  Symphoricarpos Peter Rubtzoff 1961-9-6 4735 Sonoma Laguna de Santa Rosa area northeast of Graton. Comment
  CAS-BOT-BC269634  Symphoricarpos albus var. laevigatus Marcus E. Jones 1931-7-5 29056 Sonoma West of Cloverdale Comment
  UCR254879  Symphyotrichum Peter Rubtzoff 1971-8-23 6649 Sonoma North Coast Range, Laguna [Lake], Chileno Valley 69 Comment
  UC87065  Symphyotrichum spathulatum W. E. Bryant 1887-7-1 Sonoma Healdsburg Comment
  CAS-BOT-BC221966  Taeniatherum caput-medusae G. DeNevers; M. Harding 1981-7-11 1755 Sonoma Pepperwood Ranch. Above Skovie Comment
  CDA16157  Taeniatherum caput-medusae G. F. Hrusa, R. Gross 1999-6-12 15078 Sonoma North Coast Ranges; Foote Ranch, corner of Ida Clayton Rd & Hwy 128, Knights Valley. 152 Comment
Read comments
Jul 28 2008
  CDA16162  Taeniatherum caput-medusae G. F. Hrusa, R. Gross 1999-6-12 15073 Sonoma North Coast Ranges; Foote Ranch, corner of Ida Clayton Rd & Hwy 128, Knights Valley. 152 Comment
  UC1146608  Taeniatherum caput-medusae Freed W. Hoffman 1943-6-13 2035 Sonoma Geyser Peak Road to Geysers (North Coast Ranges); North Coast Ranges Comment
  UCD144431  Taeniatherum caput-medusae Frederica Bowcutt 1994-6-12 1843 b Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Adobe Canyon N of Sonoma Creek about 35 yards, N of Adobe Canyon Rd. ca. 20 ft.Trail head for Pony Gate trail near kiosk and visitor center. 411 Comment
  CAS-BOT-BC376984  Taraxacum officinale John Thomas Howell; Catherine Best; Wilma Follette; Gordon True; Mary P. Wells 1981-5-14 53962 Sonoma Fairfield Osborn Preserve of the Nature Conservancy, 4.5 miles northeast of Penngrove on the west slope of Sonoma Mountain 457 Comment
  CHSC1158  Taraxia ovata V. Holt 1935-3-24 Sonoma Near Petaluma. Comment
  SD243313  Teesdalia coronopifolia D. G. Kelch, A. G. Murdock, Ben Carter. 2007-5-13 07 288 Sonoma Cavedale Road. 518 Comment
  CAS-BOT-BC399883  Thalictrum polycarpum A. A. Heller; H. E. Brown 1902-4-18 5326 Sonoma Near Windsor Comment
  POM196178  Thermopsis californica var. californica Emma Hawkins 1929-3-10 s.n. Sonoma Coast Ranges Comment
  UCR265091  Thysanocarpus curvipes var. 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 294 Comment
  UC609293  Thysanocarpus radians Milo S. Baker 1934-3-27 7580 Sonoma Vernal pool by Bennett Valley road se Santa Rosa; se of Santa Rosa Comment
  RSA0049971  Thysanocarpus radians Peter H. Raven 1913-4-6 1602 Sonoma Lower slopes of Rincon River. 4 miles from Santa Rosa to Sonoma. 243 Comment
  POM192688  Tiarella trifoliata var. unifoliata H. P. Bracelin 1930-7-27 21 Sonoma One mile N. of Fort Ross. Comment
  UC419740  Tiarella trifoliata var. unifoliata Mrs. H. P. Bracelin 1930-7-27 21 Sonoma one mi n Fort Ross; n of Fort Ross Comment
  UC496421  Tiarella trifoliata var. unifoliata Merle Randall 1930-6-11 Sonoma Cazadero Comment
  UC570909  Tiarella trifoliata var. unifoliata H. L. Mason June 1930 5667 Sonoma mouth of Gualala River Comment
  UC764989  Tiarella trifoliata var. unifoliata R. F. Hoover 1941-5-14 5074 Sonoma on road to Camp Meeker 3 mi s Monte Rio Comment
  POM312928  Tofieldia glutinosa subsp. occidentalis H. L. Mason 1946-7-4 12887 Sonoma Pitkin Marsh, between Santa Rosa and Forestville Comment
  POM14850  Tonella tenella Michener, Bioletti 1893-04 s.n. Sonoma Adobe Canyon. Comment
  RSA801567  Torilis arvensis Peter Rubtzoff 1967-7-2 5844 Sonoma Forest Hills, 5.5 miles east of Guerneville. Comment
  UC1011106  Torreya californica Milo S. Baker 1941-8-4 8592 Sonoma Russian Gulch 15 Comment
  CAS-BOT-BC169258  Toxicodendron diversilobum Volney Rattan 1877-6-22 s.n. Sonoma Healdsburg Comment
  CDA35358  Toxicodendron diversilobum G. D. Barbe 1974-4-29 1783 Sonoma 1 mile south of Washington School Road on Asti Road, south of Asti. 0 Comment
  UCR265093  Toxicoscordion fontanum Ann Howald, Christina Freeman 2015-4-13 3341 Sonoma Inner North Coast Ranges, Annadel State Park, Ledson Marsh, south shore, c. 300 feet north of intersection Pig Flat and Marsh trails 363 Comment
  CAS-BOT-BC173624  Trifolium Peter Rubtzoff; Walter Lennon 1974-5-11 7393 Sonoma Laguna de Santa Rosa, ca. 1 mile east-southeast of Sebastopol. Comment
  CAS-BOT-BC173637  Trifolium Peter Rubtzoff 1976-5-30 8556 Sonoma Kenwood Marsh. Comment
  RSA784997  Trifolium Peter Rubtzoff 1974-5-26 7496 Sonoma Todd Road 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. Comment
  UCSC006358  Trifolium Randall Morgan 1996-5-30 2980 Sonoma Bodega Bay, Bodega Marine Lab Comment
  UC726238  Trifolium barbigerum A. A. Heller 1940-4-22 15554 Sonoma near West Windsor Comment
  UCD143667  Trifolium barbigerum A. A. Heller 1903-4-23 6609 Sonoma Fort Ross. Comment
  UCD165149  Trifolium barbigerum Peter Rubtzoff 1974-5-18 7427 Sonoma Todd Road, 1.4 miles from Hwy. 116 and 0.6 miles from Llano Road. 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
  UC631327  Trifolium bifidum var. bifidum P. B. Kennedy 1919-5-16 Sonoma Del Mar Comment
  UCD151095  Trifolium bifidum var. decipiens James A. Neilson Jr. 1973-6-3 2989 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
  SEINET12166389  Trifolium depauperatum H. K. Wagnon 1989-1 1851 Sonoma Spring Lake Park and environs. Adjacent to MOntgomery Drive 67 Comment
  UCD35303  Trifolium depauperatum Beecher Crampton 1955-4-5 2408 Sonoma 2 miles west of Fulton, along Woolsey Road. Comment
  UC16475  Trifolium depauperatum var. depauperatum W. H. Brewer 1862-4-18 964 Sonoma Sonoma Valley Comment
  JEPS117072  Trifolium depauperatum var. depauperatum Peter Warner 2010-3-30 126 Sonoma Annadel State Park, east of Santa Rosa; approx. 200 m south of Cobblestone Trail, approx. 1 km west of Channel Drive. Comment
  UCSC005278  Trifolium depauperatum var. hydrophilum Randall Morgan 1995-5-18 2617 Sonoma Santa Rosa, Stony Point Road, across from Yuba Drive Comment
  JEPS65732  Trifolium depauperatum var. truncatum Milo S. Baker 1934-3-27 7583 Sonoma near vernal pool (Bennett Valley) Comment
  POM21428  Trifolium depauperatum var. truncatum A. A. Heller, H. E. Brown 1902-4-8 5229 Sonoma Bennett Valley, southeast of Santa Rosa. Comment
  UCD108895  Trifolium fragiferum Frederica Bowcutt 1997-7-18 2186 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Just south of midpoint between Mt. Hood and Red Mountain. Road on ridge West of Bear Ck. 365 Comment
  UC1084487  Trifolium fucatum G. Thomas Robbins 1938-5-19 263 Sonoma sw Santa Rosa (along Sandy Point Rd) Comment
  UC866777  Trifolium fucatum Alice Eastwood 1917-5-13 Sonoma rd to Bodega Point Comment
  POM89154  Trifolium fucatum F. W. Peirson 1926-4-1 6551 Sonoma 6 miles south of Cloverdale. Comment
  RSA90940  Trifolium fucatum F. W. Peirson, Mabel B. Peirson 1926-4-1 6551 Sonoma 6 miles south of Cloverdale. Comment
  UCD147005  Trifolium glomeratum Robert E. Preston 2011-4-28 2850 Sonoma Sonoma, in vacant lot N of MacArthur St, between 4th St and Hayes St. 21 Comment
  UCD37561  Trifolium grayi Beecher Crampton 1955-4-5 2407 Sonoma 2 miles west of Fulton, along Woolsey Road. Comment
  UCD111143  Trifolium hirtum Frederica Bowcutt 1996-5-19 2122 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NE of Kenwood and 18 air miles NW of Napa. Lower Bald Mtn. trail. 426 Comment
  SEINET7067237  Trifolium macraei A. G. Vestal 1947-5-13 s.n. Sonoma Base of dunes, Bodega Head. Coordinate datum: NAD27. UTM Zone 10, 505861mE, 4250832mN. Comment
  CAS-BOT-BC368051  Trifolium microcephalum Greg de Nevers 1998-5-12 11248 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  UCR255047  Trifolium microcephalum Greg de Nevers 1998-5-12 11248 Sonoma North Coast Range, Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  JEPS85900  Trifolium obtusiflorum Jack and Betty Guggolz 1991-7-29 1218 Sonoma 2 mi n Camp Meeker (Upper Duvoul Creek) 121 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
  SEINET12165539  Trifolium subterraneum F. H. Utech, Knight, W.; Knight, I. 1986-1 86 -194 Sonoma The Geysers, ca 14 mi ESE of Preston & US 101 on Geysers Rd 630 Comment
  CAS-BOT-BC361337  Trifolium variegatum Greg de Nevers 1997-4-25 10977 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  JEPS117130  Trifolium variegatum var. variegatum Peter Warner 2010-5-6 139 Sonoma Annadel State Park, in upland vernal pool ~250 m N of Canyon Trail, ~220 m W of Spring Creek, just S of old rock wall Comment
  UCD55337  Trifolium vesiculosum Ellen Dean 2006-6-28 3181 Sonoma Town of Kenwood. East side of Hwy. 12. Kunde Vineyards. In southeast part of vineyard where a new reservoir is planned 169 Comment
  JEPS4354  Trifolium willdenovii W. L. Jepson 1912-4-17 4770 Sonoma Sonoma Valley Comment
  SD40319  Trifolium wormskioldii Edith A. Purer 1932-7-24 4090 Sonoma Near Bridge Bay Comment
  CAS-BOT-BC451943  Triglochin maritima Lewis S. Rose 1964-6-3 64055 Sonoma N. end of Bodega Bay. [Actually the loc. is at north end of Bodega Harbor, not Bodega Bay -- Rubtzoff '91.] 1 Comment
  SEINET12052826  Trillium albidum F. H. Utech, Kawano, S.; Ohara, M. 1995-1 95 -53 Sonoma 11.5 mi WNW of Lake Sonoma on Skaggs Springs Road along Skaggs Springs Creek Comment
  CAS-BOT-BC520847  Trillium albidum J. W. Congdon 1880-3-1 s.n. Sonoma Near Santa Rosa Comment
  UC103157  Triphysaria eriantha subsp. eriantha Michener and Bioletti June 1892 172 Sonoma Shellville Comment
  JEPS117073  Triphysaria eriantha subsp. eriantha Peter Warner 2010-3-30 125 Sonoma Annadel State Park, east of Santa Rosa; approx. 200 m south of Cobblestone Trail, approx. 1 km west of Channel Drive. Comment
  SBBG7054  Triphysaria eriantha subsp. eriantha H. and M. Dearing 1939-4-29 323 Sonoma N of San Raphael Comment
  UC27180  Triphysaria eriantha subsp. eriantha F. T. Bioletti May 1892 Sonoma Comment
  CHSC60152  Triphysaria eriantha subsp. rosea E. L. Knight 1988-4-1 1 Sonoma Ca 0.25 m ene of southernmost point of Bodega Head and 100 ft n of Pacific Ocean. 15 Comment
  UC1239031  Triphysaria versicolor subsp. faucibarbata Freed W. Hoffman 1947-4-7 1894 Sonoma Chalk Hill road; North Coast Ranges, Chalk Hill road Comment
  UC194181  Triphysaria versicolor subsp. faucibarbata Michener and Bioletti 1893-6-7 Sonoma Kenwood Comment
  UC673454  Triphysaria versicolor subsp. faucibarbata H. L. Mason 1928-4-8 4297 Sonoma in fields near Sebastopol Comment
  UC1042399  Triphysaria versicolor subsp. versicolor Lewis S. Rose 1948-5-1 48097 Sonoma Valley Ford 13 Comment
  CAS-BOT-BC200106  Trisetum canescens Peter Rubtzoff 1951-6-7 111 Sonoma Western branch of the Upper Marsh Comment
  UCD15865  Trisetum canescens Botany 102 Students 1993-3 9 Sonoma Sugarloaf Ridge State Park. About 40 air miles N of San Francisco; about 11 air miles E of Santa Rosa and 2.5 air miles NE of Kenwood. Across road from Goodspeed trailhed pullout. 228 Comment
  UC72474  Triteleia laxa Milo S. Baker 1904-6-19 Sonoma Sonoma Creek Canyon Comment
  UCR18634  Triteleia laxa John C. Roos 1950-7-22 4866 Sonoma Jenner 30 Comment
  CAS-BOT-BC527037  Triteleia laxa D. E. Breedlove 1962-6-6 2897 Sonoma Along State Highway 128, 1.5 miles northwest of U.S. Highway 101 at Cloverdale 121 Comment
  RSA378042B  Triteleia laxa Christopher Davidson 1977-6-20 6007 Sonoma Dry Cr. Rd., 8.6 mi. W of Geyserville 91 Comment
  UCD93312  Triticum aestivum Frederica Bowcutt 1997-7-19 2188 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 2.5 air miles NNE of Kenwood. 1 air mile S of Red Mountain. Edge of service road just SW of group campground. Adobe Canyon near trailhead to Meadows Trail. 396 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
  CAS-BOT-BC74108  Turritis glabra Rimo Bacigalupi 1926-5-2 1404 Sonoma Cazadero. Comment
  CAS-BOT-BC74110  Turritis glabra A. A. Heller; H. E. Brown 1902-5-29 5624 Sonoma Mount Hood. Comment
  CHSC997  Ulex europaeus M. Anthony 1953-3-9 Sonoma Comment
  CAS-BOT-BC404222  Urtica dioica subsp. holosericea Peter Rubtzoff 1971-9-3 6690 Sonoma Along southeastern border of Spring Creek Reservoir area Comment
  CAS-BOT-BC404237  Urtica dioica subsp. holosericea Peter Rubtzoff 1954-7-27 1584 Sonoma Guerneville 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
  UC877173  Vaccinium cespitosum Milo S. Baker 1940-1 9670 Sonoma Gravenstein Highway Perrys Marsh Comment
  CAS-BOT-BC193382  Vaccinium ovatum Mary P. Wells 1985-10-4 680 Sonoma New road to semi-pygmy forest south of Gualala River Comment
  SJSU9483  Vaccinium ovatum G. J. Woodside 1969-4-29 Sonoma Dutton Bill Cr 4 mi above Camp Meeker at St Dorothy's Rest Comment
Read comments
Apr 30 2012
  UC419732  Vaccinium parvifolium Mrs. H. P. Bracelin 1930-7-27 22 Sonoma 1 mi N of Fort Ross Comment
  UC1126304  Vancouveria planipetala H. S. Yates 1936-5-16 5614 Sonoma 1 mi nw Mountain View School; Sebastopol Quad., nw of Mountain View School Comment
  CAS-BOT-BC76169  Vancouveria planipetala M. S. Baker 1899-5-6 s.n. Sonoma Green Valley, near Gallagher's. Comment
  CAS-BOT-BC135767  Veratrum fimbriatum Elizabeth Eaton Morse 1936-8-30 s.n. Sonoma Gualala River Comment
  SEINET3889195  Veratrum insolitum Kaye H. Thorne 1984-11-21 3653 Sonoma Sea Ranch, 2.5 miles South Gualala, stabilized coast dunes old sheep ranch.; 0 Comment
  CAS-BOT-BC320584  Verbascum Peter Rubtzoff 1969-8-24 6142 Sonoma Pond on River Road 3 miles west of Fulton. Comment
  UCD148315  Verbascum virgatum Peter Rubtzoff 1952-6-15 1261 Sonoma Fitch Mountain Grove Resort, near Healdsburg, along Russian River. Comment
  UCD125639  Verbena lasiostachys Frederica Bowcutt 1994-7-5 1933 Sonoma Sugarloaf Ridge State Park. About 50 air miles N of San Francisco, 10 air miles E of Santa Rosa, 1.5 air miles N of Kenwood and 18 air miles NW of Napa. Adobe Canyon N of Sonoma Creek about 30 feet, 70 ft. S of campfire center along N edge of Sonoma Creek, N and E of campground. 381 Comment
  RSA135429  Verbena lasiostachys var. lasiostachys Volney Rattan 1877-6-17 s.n. Sonoma Guernville Comment
  SJSU4770  Verbena litoralis W. A. Lordge 1963-11-2 21 Sonoma Fort Ross Comment
  CAS-BOT-BC164366  Veronica Peter Rubtzoff 1955-5-7 1825 Sonoma Guerneville Marsh. Comment
  CAS-BOT-BC262795  Veronica Peter Rubtzoff 1974-9-7 7869 Sonoma Hinebaugh Creek in Rohnert Park, west of Commerce Blvd. crossing of the creek. Comment
  CAS-BOT-BC164371  Veronica Peter Rubtzoff 1961-6-23 s.n. Sonoma Bennett Mountain Lake. Comment
  CAS-BOT-BC177116  Veronica americana Peter Rubtzoff 1955-7-9 1939 Sonoma Forestville Marsh. Comment
  CAS-BOT-BC182754  Veronica americana Peter Rubtzoff 1958-6-1 3693 Sonoma Laguna de Santa Rosa, east of Cunningham (near Llano Road). Comment
  CAS-BOT-BC166806  Veronica americana Peter Rubtzoff 1962-6-22 4955 Sonoma Fife Creek Marsh. Comment
  CAS-BOT-BC182764  Veronica americana Peter Rubtzoff 1962-8-22 5049 Sonoma Bodega Bay Marsh. Comment
  JEPS67156  Veronica anagallis-aquatica Peter Rubtzoff 1971-8-24 6660 Sonoma 3 mi w of Fulton (tributary of Mark West Creek); Mark West Creek Comment
  UCR279619  Veronica peregrina subsp. xalapensis Peter Rubtzoff 1962-5-6 4809 Sonoma Guerneville Marsh Comment
  JEPS88699  Veronica scutellata P. B. Kennedy 1919-5-16 Sonoma Del Mar Comment
  CAS-BOT-BC267246  Viburnum ellipticum Greg de Nevers 1987-5-11 8177 Sonoma Pepperwood Ranch Natural Preserve, 3500 Franz Valley Road, Santa Rosa 400 Comment
  CAS-BOT-BC257965  Vicia Peter Rubtzoff 1974-5-25 7457 Sonoma Upper Green Valley Marsh area. Comment
  RSA92779  Vicia dasycarpa Peter H. Raven 1951-4-22 2786 Sonoma Hills E. of Agua Caliente. Comment
  RSA96839  Vicia dasycarpa Percy C. Everett, E. K. Balls, George B. Everett 1954-10-20 20381 Sonoma 0.6 mi. n.w. of Freestone on road to Occidental. 91 Comment
  UCR255891  Vicia hirsuta Greg de Nevers 1993-5-6 10425 Sonoma Pepperwood Ranch Natural Preserve, 3450 Franz Valley Rd., Santa Rosa 400 Comment
  CAS-BOT-BC366881  Vicia lutea Greg de Nevers 1994-5-21 10524 Sonoma Pepperwood Ranch, 3450 Franz Valley Rd., Santa Rosa. Between Mountain House and Al Cuneo's. 400 Comment
  UCD108795  Vicia lutea Frederica Bowcutt 1996-5-19 2152 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 Mountain. Near trailhead for Lower Bald Mountain. Above Group campground. 472 Comment
  UCD108964  Vicia sativa subsp. nigra Helen K. Sharsmith 1963-5-25 5490 Sonoma Coleman Valley road east of Occidental. 304 Comment
  UCR254854  Vicia tetrasperma Greg de Nevers 1993-7-4 10471 Sonoma Willow Creek drainage downhill from 18375 Willow Creek Road [Occidental] 244 Comment
  UC1084366  Vinca major G. Thomas Robbins 1937-3-26 32 Sonoma along rd. to Bodega Bay just w. of Bodega Comment
  UCD15000  Vinca major Wesley Ebert 1977-4-9 13 Sonoma Sonoma County; along Copeland Creek, on the northwest corner of Sonoma State College; 42 Comment
  CAS-BOT-BC270249  Viola adunca L. R. Abrams 1920-7-3 7619 Sonoma Stewarts Point Comment
  CAS-BOT-BC270243  Viola adunca Walter Knight; Irja Knight 1964-2-27 536 Sonoma Highway 1, Rocky Point, coastal bluffs Comment
  CAS-BOT-BC536902  Viola glabella Volney Rattan 1880-4-1 s.n. Sonoma Duncans Mill Comment
  CAS-BOT-BC536904  Viola glabella Mildred Parks 1925-7-20 s.n. Sonoma Stewarts Point Comment
  UC1761515  Viola lobata Milo S. Baker 1926-3-31 165 a Sonoma Triniti[sic] Road 1 mi from hwy Comment
  UC1749379  Viola lobata Milo S. Baker 1937-4-18 8633 Sonoma Hope Valley north of Chamberlain's House, ca. 3/4 miles Comment
  UC1010429  Viola ocellata Leo Koch 1939-4-8 497 Sonoma Baxman Ranch near Plantation; North Bay, Baxman Ranch Comment
  UC1763350  Viola pedunculata Milo S. Baker Apr 1899 5540 Sonoma Petaluma road to the coast Comment
  SEINET4926724  Viola sempervirens Unknown 1994-4-3 76 Sonoma approx. 6.5mi SE of Gualala in the Sea Ranch community on the Pacific Coast; above Gualala River Comment
  UC496478  Viola sempervirens Merle Randall 1930-8-6 Sonoma Cazadero Comment
  UC1393645  Viscum album W. J. Ferlatte and William O. McCartney 1970-12-22 1325 Sonoma Sebastopol; nw corner of Mill Station and Gravenstein Highway Comment
  UC1540660  Viscum album D. Wiens and R. Sharpf 1973-6-17 4900 Sonoma Sebastopol, in and around the town Sebastopol Comment
  RSA183446  Viscum album subsp. album William O. McCartney 1966-5-4 s.n. Sonoma In a residential property, NW corner of Mill Station Road and Gravestein North Hwy, Sebastopol. Comment
  CAS-BOT-BC203126  Vitis californica Peter Rubtzoff 1960-5-29 4423 Sonoma Laguna de Santa Rosa near Trenton (south of Woolsey Road) Comment
  CAS-BOT-BC203130  Vitis californica Lewis S. Rose 1968-6-25 68115 Sonoma Rincon Ridge ne. of Santa Rosa 121 Comment
  UCD158821  Vitis californica James A. Neilson Jr.; Teresa A. Sholars 1974-12-28 2898 Sonoma northwest corner of Section 14, The Geysers. (Elevation estimated by label maker using Google Earth.) 472 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-BC199901  Vulpia bromoides G. DeNevers 1981-4-2 619 Sonoma Cows Udder. In N arm of Garrison Canyon Comment
  CAS-BOT-BC199912  Vulpia bromoides Peter Rubtzoff 1960-5-22 4404 Sonoma Laguna de Santa Rosa area east of Graton (betw. Occidental & Guerneville rds.) Comment
  CAS-BOT-BC199914  Vulpia bromoides Peter Rubtzoff 1951-7-7 372 Sonoma Eastern branch of the Upper Marsh Comment
  UCD93551  Vulpia bromoides P. B. Kennedy 1918-5-28 s.n. Sonoma 8 miles from Santa Rosa. Retrified Forest Road. Comment
  SEINET5427986  Vulpia microstachys L. Koch 1940-4-22 835 Sonoma At Geysers in Sulfur Creek Canyon Comment
  SEINET5428073  Vulpia microstachys L. Koch 1940-4-22 838 a Sonoma At Geysers in Sulfur Creek Canyon Comment
  CAS-BOT-BC199970  Vulpia microstachys var. ciliata John Thomas Howell 1948-4-18 24205 Sonoma Hills east of Aqua Caliente Comment
  CAS-BOT-BC184134  Vulpia microstachys var. microstachys G. DeNevers 1981-5-15 1195 B Sonoma N slope of hill above Hansel's Lake Comment
  UCD161305  Vulpia myuros James A Neilson Jr.; Teresa A. Sholars 1976-5-10 3687 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.)