Search Results — 2000 specimen records retrieved (1467 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UCD161303  Acer negundo Jake Ruygt 1979-4-2 472 Napa Napa Creek at First Street bridge, Napa. (Coordinates estimated by label maker at UC Davis). 4 Comment
  UCD50273  Achnatherum coronatum Beecher Crampton 1960-5-2 s.n. Napa Markley Canyon, Vaca Mtns., 2.7 miles southwest of Monticello Dam along State Highway 128. Comment
  SEINET11687430  Achnatherum lemmonii F. H. Utech, Knight, W.; Knight, I.; Edwards, S. 1986-1 86 -300 Napa Robert Lewis Stevenson State Park, trailhead on CA 29 near St. Helena Creek 750 Comment
  RSA786930  Achyrachaena mollis Carrie A. Herd 1982-5-9 100 Napa Sage Canyon Road, Con Dam area Comment
  UCD18178  Achyrachaena mollis Eva Bayon; with Plant Biology 102 Class 2000-4-29 s.n. Napa Napa County. McLaughlin Reserve. North of Knoxville -- Berryessa Rd., along road from Knoxville to Clover Valley. Ca. 0.20 miles as the crow flies N of site of old town of Knoxville. 426 Comment
  UCD18112  Acmispon americanus var. americanus K. Carpenter; with E. Dean and K. Chaney. 2000-8-11 49 Napa Napa County. Just south of the border with McLaughlin Reserve. Along Knoxville-Berryessa Rd, ca. 1.4 road miles south of intersection with dirt road leading to old town of Knoxville, SW side of road, along drainage leading into Knoxville Creek; there is an old homestead uphill from collection site. 371 Comment
  SJSU1361  Acmispon brachycarpus J. W. Tilden 1953-5-24 1038 Napa NE slope Mt St Helena 457 Comment
  UCD170214  Acmispon brachycarpus Daniel Potter; Ninh Khuu, Travis Parker 2015-3-7 743 Napa Knoxville Wildlife Area, above and west of Berryessa-Knoxville Road. 357 Comment
  UCD47970  Acmispon brachycarpus M. Carson; A. Haselby, J. Howard, P. Mayers 2000-4-29 5 Napa Napa County, McLaughlin Reserve, near Yolo County line, high on hill. 670 Comment
  UCD16011  Acmispon brachycarpus L. A. Condon; R. Flannery, C. Hallock, C. Kennedy, N. Strahan 2000-4-22 8 Napa McLaughlin Reserve, McLaughlin Reserve, east side of Devilhead Road 38 deg. 49' 14'' N, 122 deg. 21 12'' W; 540 m. Comment
  UCD75711  Acmispon glaber Jake Ruygt 2008-6-25 4931 Napa Peak below and SW of Berryessa Peak. 762 Comment
  SEINET957912  Acmispon micranthus W. L. Jepson 1893-1 13787 Napa Hills, Howell Mountian grade, east of town of St. Helena, Napa River Basin. Comment
  UCD117462  Acmispon parviflorus Roisin Murphy-Deak; Plant Biology 102 Collectors 2012-4-29 2 Napa Las Posadas State Experimental Forest. Near entrance gate on Las Posadas Rd. by fire station. 520 Comment
  UCD17993  Acmispon wrangelianus Ellen Dean; with Plant Biology 102 class 2001-4-14 719 Napa SE corner of Lake Berryessa, just W of Monticello Dam. Quail Ridge Reserve. Along South Decker Canyon Rd., just down slope from jct. with Decker Ridge Rd. 335 Comment
  UCD35290  Acmispon wrangelianus Beecher Crampton 1955-4-7 2434 Napa Napa County; 7.8 miles north of Monticello. Comment
  CDA6754  Acroptilon repens B. E. Eaton 1971-7-7 Napa Dealy Lane, Napa. 0 Comment
  CAS-BOT-BC29284  Adenocaulon bicolor Betty H. Johnson 1958-6-20 673 Napa Old Toll Road, about 1/2 mile above Mt. Mill House, 6.4 miles SW of Middletown Comment
  UCD159946  Adenostoma fasciculatum Alice Warrick 2008-4-22 s.n. Napa Quail Ridge UC Reserve. 2005 Pleasure Fire burn site, along west loop road, north of Decker canyon. Middle section. 243 Comment
  UCD48197  Adenostoma fasciculatum R. Blenkush; S. Hee, C. McWhorter, J. Moeller 2000-4-22 9 Napa Northern Napa County, McLaughlin Reserve, first ridge south of Knoxville-Berryessa Road, on Devilhead Road. 487 Comment
  JEPS121508  Adenostoma fasciculatum var. fasciculatum Adam C. Schneider with Dick O'Donnell 2013-5-26 200 Napa Aetna Springs Road, 1.4 miles west of Pope Valley Road Comment
  UCD137227  Adiantum jordanii M. Sidells 1996-4-13 8 Napa Lake Bereyessa. 280 Comment
  UCD48355  Adiantum jordanii Anne Mini; K. McBride, S. Snow, K. Ehmsen 2001-4-14 20 Napa Quail Ridge Reserve, southeast corner of Lake Berryessa, just west of Monticello Dam, Decker Canyon, along South Decker Canyon Rd., just south of junction with Cut Off Rd., near creek bed. 167 Comment
  UCD48359  Adiantum jordanii Kook-Hyun Chung 2001-4-28 2 Napa Quail Ridge Reserve; SE corner of Lake Berryessa, just W of Monticello Dam; along West Rd., ca. 0.45 miles (2400 ft) NW of jct with South Decker Canyon Rd. 53 Comment
  CAS-BOT-BC202657  Aesculus californica Peter H. Raven 1950-6-20 2326 Napa St. Helena to Conn Valley, Napa Range Comment
  UCD49075  Aesculus californica M. Eng; W. Wong, N. Wannlund, and A. Holman 2002-5-4 6 Napa Quail Ridge UC Reserve, northern tip of ridge, N of intersection of East and West roads, along lower road leading to power lines. 20 ft. W of lat./long. position. Along second bend of the road. 30 ft. E of power lines. 304 Comment
  UCR146888  Aesculus californica Kathleen Stockwell 2000-5-27 s.n. Napa Coast Range, along Napa Creek which flows to the Napa River, along Kingston Ave. in city of Napa, north of Browns Valley Rd. and Westwood Hills Park 30 Comment
  SEINET6646612  Aesculus californica R. R. Halse 1989-5-13 3831 Napa Along State Hwy. 29, 2.7 miles north of Calistoga; on the Calistoga Grade 240 Comment
  UCD164733  Agastache urticifolia Jake Ruygt 2014-6-9 5992 Napa Livermore Ranch, Cub Valley. 657 Comment
  CDA9939  Agoseris grandiflora T. C. Fuller 1958-6-4 Napa 2 1/2 miles north of Calistoga. 0 Comment
  RSA0009530  Agoseris grandiflora Marcus E. Jones 1924-4-24 s.n. Napa Napa. Comment
  CAS-BOT-BC22754  Agoseris heterophylla D. D. Keck 1931-4-3 1060 Napa Pope Creek Canyon, 7 miles NW of Monticello Comment
  CAS-BOT-BC22756  Agoseris heterophylla John H. Thomas 1955-5-21 5163 A Napa Near state highway 128 and Capell Creek, about 12 miles E of St. Helena 274 Comment
  JEPS104520  Agoseris heterophylla Jake Ruygt 1981-4-25 1002 Napa Table Mountain 621 Comment
  CAS-BOT-BC22753  Agoseris heterophylla P. H. Raven; G. L. Stebbins 1953-4-19 5316 Napa Steel Canyon 304 Comment
  UCD128642  Agoseris heterophylla K. Esau; E. Hyde 1938-5-25 s.n. Napa Exact location unknown. Comment
  UC164850  Agoseris heterophylla var. cryptopleura J. P. Tracy 1902-5-14 1439 Napa 3-4 mi e, (head of Moore's Creek) Angwin's; Howell Mountain, Moore's Creek 365 Comment
  CAS-BOT-BC127450  Agrostis elliottiana J. P. Tracy 1902-5-19 1552 Napa Howell Mountain. Head of Moore's Creek, 3-4 miles east of Angwin's. 518 Comment
  UC186909  Agrostis elliottiana J. P. Tracy 1902-5-19 1552 Napa head Moore's Creek (3-4 mi e of Angwin's); Howell Mountain, head Moore's Creek 518 Comment
  CAS-BOT-BC127138  Agrostis exarata Beecher Crampton 1957-6-4 4105 Napa Above Capell Creek, north end of Capell Valley. Comment
  UCD19918  Agrostis exarata E. A. Dean; J Bradford, K. Mawdsley, and L Wynholds 2001-7-13 774 Napa Quail Ridge Reserve. Decker Canyon, along S. Decker Canyon trail, just N of Cut-Off Rd. along drainage that runs NE of trail. 167 Comment
  UCD52311  Agrostis exarata Beecher Crampton 1965-7-7 7441 Napa N end of Capell Valley, Hwy. 128, above Capell Creek. Comment
  UCD32918  Agrostis exarata var. monolepis Beecher Crampton 1965-7-7 7441 Napa Napa County, north end of Capell Valley, Hwy. 128, above Capell Creek. Comment
  CAS-BOT-BC139522  Agrostis hallii Peter H. Raven 1951-6-24 3013 Napa Browns Valley. 30 Comment
  SEINET9326859  Agrostis hallii Unknown 1957-6-4 4109 Napa Napa Comment
  POM126099  Agrostis microphylla Joseph P. Tracy 1903-5-15 1856 Napa Calistoga Hot Springs 91 Comment
  SEINET238872  Agrostis microphylla Beecher Crampton 1956-5-21 3443 Napa Napa County 2 miles north of Calistoga Myrtledale Hot Springs. Comment
  UC1103385  Agrostis microphylla Joseph P. Tracy 1899-7-5 344 Napa 3-4 mi e Angwin's (head of Moore's Creek, Howell Mountain); Northern Coast Ranges, Howell Mt., head Moore's Creek 365 Comment
  UCD53015  Agrostis microphylla Beecher Crampton 1962-5-8 6415 Napa 2 miles north of Calistoga, Myrtledale Hot Springs. Comment
  UCD36876  Agrostis microphylla var. intermedia Beecher Crampton 1956-4-24 3303 Napa Napa County, 2 miles north of Calistoga, Myrtledale Hot Springs. Comment
  UCD53065  Agrostis microphylla var. intermedia Beecher Crampton 1956-5-21 3444 Napa meadow of waters supplied by the Myrtledale Hot Springs, 2 miles north of Calistoga. Comment
  CAS-BOT-BC139017  Agrostis pallens Joseph P. Tracy 1905-7-5 2210 Napa Northern Coast Ranges. Howell Mountain. On hills at head of Moore's Creek, 3-4 miles east of Angwin's. 365 Comment
  JEPS71139  Agrostis pallens W. L. Jepson 1936-7-2 17642 Napa Angwin Meadow Napa Range, Howell Mt. Comment
  JEPS71140  Agrostis pallens W. L. Jepson 1936-7-3 17637 Napa Four Corners Napa Range, Howell Mt. Comment
  UC1103527  Agrostis pallens J. P. Tracy 1899-6-26 350 Napa 3-4 mi e Angwin's (head of creek); Howell Mountain, Moore's Creek 365 Comment
  JEPS32192  Alisma plantago-aquatica Willis L. Jepson April, 1893 Napa Lower Napa Valley Napa River Basin Comment
  CAS-BOT-BC445424  Alisma triviale James L. Reveal 1987-6-7 6410 Napa Along California Highway 128 northeast of Rutherford, along Corn Creek, about 1 mile south of Trail Silverado, about 4 airline miles southeast southeast of St. Helena 76 Comment
  RSA92784  Alisma triviale Peter H. Raven 1950-7-4 2470 Napa Along railroad, Yountville. Comment
  SEINET12044090  Allium amplectens M. S. Jussel 1937-1 s.n. Napa Palisades Comment
  UCD161516  Allium cratericola Jake Ruygt 1990-4-8 2473 Napa White Creek, Wild Horse Valley Ranch. 408 Comment
  JEPS47592  Allium falcifolium W. L. Jepson 1915-4-23 6250 Napa Conn Valley Comment
  CAS-BOT-BC469029  Allium falcifolium David D. Keck 1933-5-29 2375 Napa 1.3 miles south of Knoxville. Comment
  CAS-BOT-BC469030  Allium falcifolium Willis L. Jepson 1893-5-1 43 Napa Upper Conn Valley; Napa River Basin Comment
  JEPS81597  Allium falcifolium R. Raiche 1982-3-7 20208 Napa ridge above Detert Reservoir (on Butts Canyon Road) Comment
  POM257226  Allium falcifolium J. Morrison, Annetta Carter 1938-4-24 1355 Napa 0.6 miles west of Knoxville on road from Monticello to Lower Lake. Comment
  SEINET12043963  Allium falcifolium J. Morrison, Carter, A. 1938-1 1355 Napa .6 mi W of Knoxville on road from Monticello to Lower Lake Comment
  SEINET186014  Allium falcifolium J. Morrison, A Carter 1938-4-24 1355 Napa 0.6 mi W of Knoxville on rd from Monticello to Lower Lake Comment
  UC726233  Allium falcifolium A. A. Heller 1941-5-16 16129 Napa on road to Upper Lake about 3 mi w Knoxville Comment
  UCD141791  Allium falcifolium L. K. Mann 1957-4-18 s.n. Napa above road aout 1/4 mile east of crest on Conn Dam. Comment
  CAS-BOT-BC472783  Allium neapolitanum Alice Ackley 1957-3-30 s.n. Napa 2 miles east of Napa Comment
  CDA33428  Allium paniculatum CDFA Staff 1978-4-6 Napa Calistoga 0 Comment
  RSA123628  Allium serra Milo S. Baker 1932-4-26 5969 Napa Pope Creek along road to Pope Valley. Comment
  UCD48256  Allium serra K. Carpenter; S. Cruz, D. Goldberg, M. Ochoa, and K. Watts 2000-4-28 30 Napa Napa County, McLaughlin Reserve, north of Knoxville-Berryessa Rd., just south of old town of Knoxville, west of Old Knoxville Rd. 432 Comment
  JEPS110935  Allium serra Jake Ruygt 1998-5-2 3955 Napa Landucci Ranch 268 Comment
  POM203718  Allium serra J. T. Howell 1931-4-2 6103 Napa 4 miles from Monticello on Wooden Valley Road. Comment
  JEPS69369  Allophyllum divaricatum W. L. Jepson 1893-6-26 15060 Napa Howell Mt., Angwin's Meadows Comment
  UCD167205  Allophyllum divaricatum Jake Ruygt 2005-6-1 4883 Napa Knoxville Wildlife Area; spur ridge of Blue Ridge, 1 mile N of Mays Flat. 420 Comment
  JEPS58642  Alnus rhombifolia W. L. Jepson Nov 26 1895-Nov 27 1895 Napa sw St. Helena; White Sulphur Springs Comment
  JEPS123022  Alopecurus pratensis Jake Ruygt 1998-4-18 3910 b Napa Pope Canyon Road north of Hardin Road intersection. Quad: Saint Helena. Comment
  CHSC103021  Amaranthus blitoides Lowell Ahart 2009-10-12 16469 Napa Along Capell Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile soutwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. 133 Comment
  UCD148568  Amaranthus blitoides Jake Ruygt 2001-10-22 4347 Napa Napa County; Dry Creek at Solano Avenue. 28 Comment
  UCD47826  Amaranthus blitoides Mark Bibbo; Laura Wynholds 2002-7-20 64 Napa McLaughlin UC Reserve. Hunting Creek campground where Hunting Creek Rd. crosses Hunting Creek. 50 yards downstream of campground. 335 Comment
  POM226226  Amaranthus powellii J. T. Howell 1933-9-17 11667 Napa North of Vallejo Comment
  JEPS54330  Amaranthus retroflexus W. L. Jepson 1894-11-5 Napa St. Helena Comment
  JEPS104501  Ambrosia psilostachya Jake Ruygt 1978-9-27 422 Napa .15 mi. west of Buhmann Ave. on Henry Rd 48 Comment
  CAS-BOT-BC136742  Amelanchier utahensis John Thomas Howell 1933-5-21 11320 Napa Hills east of Napa Comment
  JEPS45494  Amelanchier utahensis W. L. Jepson 1924-4-27 10383 Napa Mt. St. Helena Comment
  RSA26269  Amelanchier utahensis J. T. Howell 1940-5-19 15446 Napa Upper St. Helena Creek. Comment
  UCD127163  Ammi majus R. Tofsrud; J. M. Tucker 1948-7-14 s.n. Napa Cox Ranch on Highway 29 between Napa and Yountville Comment
  CAS-BOT-BC177209  Amorpha californica var. napensis C. H. M. 1907-7-10 s.n. Napa Howell Mt. Comment
  CAS-BOT-BC177210  Amorpha californica var. napensis Peter H. Raven 1951-8-19 3845 Napa Near Lokoya 487 Comment
  JEPS35498  Amorpha californica var. napensis W. L. Jepson 1913-4-15 5309 Napa Howell Mt. 548 Comment
  UC1137510  Amorpha californica var. napensis J. B. Spring 1932-6-27 91 Napa 2 mi e McCormack Ranch; Santa Rosa Quadrangle, Sulphur Spr. Creek 152 Comment
  RSA92931  Amorpha californica var. napensis P. H. Raven 1951-8-19 s.n. Napa Near Lokoya. 488 Comment
  UCD56008  Ampelodesmos mauritanicus R. Tofsrud 1941-5-1 s.n. Napa Mt. St. Helena. Comment
  UCD119266  Amsinckia intermedia Mary N. Artist 1965-3-19 7 Napa 3.5 miles E of Pope Valley. Comment
  UCD37577  Amsinckia intermedia Beecher Crampton 1955-4-7 2453 Napa At border with Solano and Yolo Counties, 7 miles west of Winters, 0.25 mile west of Recreation Beach of Putah Creek, Vaca Mountains, east facing slope of Cold Canyon. Comment
  UCR227357  Amsinckia intermedia Jake Ruygt 2007-5-21 5127 Napa Jameson Canyon Road, west side of Fagan Creek 61 Comment
  JEPS61162  Amsinckia intermedia Elsa Kraeger 1926-3-27 Napa roadside near Soscol Comment
  UC1301077  Amsinckia lycopsoides Helen K. Sharsmith 1963-3-17 5210 Napa s side Mount Atlas; San Francisco Bay Region, Mount Atlas 609 Comment
  UCD119718  Amsinckia lycopsoides H. Popenoe 1949-4-17 12 Napa Putah Canyon, 8 miles west of Winters. Comment
  UCD161576  Amsinckia menziesii Jake Ruygt 2007-3-29 5128 Napa Rector Creek, west of State Lane (Caymus Avenue). 42 Comment
  JEPS20862  Amsinckia menziesii var. menziesii W. L. Jepson 1896-6-2 21079 Napa St. Helena Comment
  UC1178212  Amsinckia menziesii var. menziesii S. Galen Smith 1951-4-15 Napa along Silverado Trail Comment
  UCD35480  Anagallis arvensis Beecher Crampton 1957-4-15 3930 Napa Napa County; Vaca Mtns., Markley Canyon. Comment
  UCD49107  Anagallis arvensis S. Colby; L. Hanson, D. Bosworth, K. Sesser, and G. Belley 2001-4-14 3 Napa Quail Ridge Reserve, SE corner of Lake Berryessa, just W of Monticello Dam, E side of Decker Canyon about 150 m up Cut-Off Rd. from South Decker Canyon Rd. 182 Comment
  UCD118509  Ancistrocarphus filagineus Amber Kimpel; Plant Biology 102 Collectors 2012-5-5 2 Napa Las Posadas State Experimental Forest. Northeastern part of property, uphill and north of Recreation Flat, along undeveloped road. South side of road. 417 Comment
  UCD47899  Ancistrocarphus filagineus R. Blenkush; S. Hee, C. McWhorter, J. Moeller 2000-4-22 13 Napa Northern Napa County, McLaughlin Reserve, on east facing slope of first hill northwest of intersection between Old Knoxville Road and Berryessa-Knoxville Road. 426 Comment
  UC1535365  Ancistrocarphus filagineus J. M. Tucker 1977-4-24 4390 Napa up jeep track ca. 1/3 mi from Berryessa-Knoxville Road (15.9 mi (by road) n of junction with Pope Canyon Road (2 mi se of Knoxville Mine)) 365 Comment
  UCD128906  Ancistrocarphus filagineus J. M. Tucker 1977-4-24 4390 Napa up jeep track ca. 1/3 mile west of road, Berryessa-Knoxville Road, 15.9 miles (by road) north of junction with Pope Canyon Road (2 miles southeast of Knoxville Mine). 365 Comment
  JEPS110887  Anemone oregana Jake Ruygt 1997-5-13 3851 Napa Monticello Road at north entrance to Leoma Lakes 385 Comment
  UCD38975  Angelica californica Beecher Crampton 1961-6-12 5907 Napa 8 miles northeast Napa along State Hwy. 37, Howell Mountains. Comment
Read comments
Jun 12 2007
  UC20797  Angelica tomentosa Willis L. Jepson Aug. 1892 Napa near St. Helena (Napa River Basin); Napa River Basin Comment
  UC765493  Angelica tomentosa R. F. Hoover 1938-9-23 3861 Napa south fork of Butts Creek Butts Creek Comment
  IRVC19774  Anthriscus caucalis Anne E. Justice 1981-4-27 s.n. Napa 10 miles from Winters on Hwy 128, just past Monticello Dam. Comment
  JEPS14070  Anthriscus caucalis W. L. Jepson 1936-6-2 17603 Napa e of St. Helena (thickets on bank of Napa River, near bridge on road to St. Helena Sanitarium); Napa River Comment
  UCR146404  Antirrhinum vexillocalyculatum subsp. breweri Beecher Crampton 1971-10-26 8767 Napa Inner North Coast Ranges, 4.7 miles east of Conn Reservoir Dam on State Hwy. 128 244 Comment
  JEPS100865  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Dean W. Taylor 2000-6-29 17475 Napa Zim Zim Creek, canyon about 2.5 miles up from confluence of Eticuera Creek and Berryessa-Knoxville Road 259 Comment
  JEPS110622  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Jake Ruygt 1978-5-23 98 Napa .4 mile west of Langtry Rd. on Spring Mountain Rd. 185 Comment
  JEPS127863  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Adam C. Schneider with Dick O'Donnell 2013-5-26 201 Napa Aetna Springs Road, 1.4 miles west of Pope Valley Road. Comment
  CAS-BOT-BC248849  Antirrhinum virga Arno H. Wilson 1920-6-26 s.n. Napa Atlas Comment
  RSA80428  Antirrhinum virga Joseph A. Ewan 1933-9-17 8017 Napa Near Stevenson Monument, Mt St Helena Comment
  UC726147  Antirrhinum virga A. A. Heller 1940-6-13 15741 Napa w side Mt. St. Helena (along the road to the summit below the first turn toward the e side) Comment
  CAS-BOT-BC392031  Aquilegia eximia H. M. Hall 1923-10-14 11944 Napa 6 mi. n. of Pope Valley Comment
  POM161354  Aquilegia formosa var. truncata Rimo Bacigalupi 1928-6-20 186 Napa Howell Mt, 10 miles W of St Helena Comment
  JEPS40077  Aralia californica Alice King July, 1919 Napa Mt. St. Helena, Van Ness Ranch Comment
  JEPS66572  Arbutus menziesii W. L. Jepson 1913-4-15 5308 Napa Howell Mountain 762 Comment
  SEINET3094065 Image available Arbutus menziesii V. R. Wandres 1967-6-26 67- 30 -1 Napa Clearly Reserves, 7.2 miles NW of Pope Valley. Comment
  RSA10639  Arceuthobium campylopodum Carl B. Wolf 1928-5-4 1851 Napa Upper slopes of Mount St. Helena. Comment
  JEPS116549  Arctostaphylos canescens Jake Ruygt 2002-7-13 4442 Napa End of Redwood Road, Archer Taylor Preserve, Tin Cabin Trail. Sonoma 7.5' Quad. Comment
  JEPS38625  Arctostaphylos canescens Willis L. Jepson 1893-9-23 14701 Napa summit of mt. Napa River Basin, Mt. St. Helena Comment
  CAS-BOT-BC23951  Arctostaphylos canescens subsp. canescens C. B. Wolf 1928-2-25 1503 Napa 1 mi. north of summit of Mt. St. Helena Comment
  CAS-BOT-BC23957  Arctostaphylos canescens subsp. canescens L. R. Abrams 1928-5-4 12272 Napa Near summit of Mt. St. Helena Comment
  CAS-BOT-BC24018  Arctostaphylos canescens subsp. canescens John Thomas Howell 1930-3-23 4563 Napa Crater Country, near Mt. St. Helena Comment
  RSA182020  Arctostaphylos canescens subsp. canescens W. L. Jepson 1893-4-25 14698 Napa Aux's Knob, west of St. Helena. Comment
  RSA252159  Arctostaphylos canescens subsp. canescens Gary D. Wallace 1974-12-23 1346 Napa SE of Mt. St. Helena along Hwy 29 just N of Robert Louis Stevenson St. Pk. 610 Comment
  UC763159  Arctostaphylos canescens subsp. canescens R. F. Hoover 1941-4-27 4947 Napa e side Mt. St. Helena Comment
  UCR212319  Arctostaphylos canescens subsp. canescens Ayzik Solomeshch 2007-8-7 s.n. Napa North Coast Range, Oakville Ranch, c. 6 miles northwest of the town of Yountville; on Hwy 29 take 'Oakville Grade Road', c. 3 miles north from Yountville 205 Comment
  JEPS120407  Arctostaphylos canescens subsp. sonomensis Jake Ruygt 2010-4-7 5498 Napa Archer Taylor Preserve, east slope of Bismark Knob above Devil's Well. Comment
  CAS-BOT-BC23621  Arctostaphylos crustacea Peter H. Raven 1951-6-26 3052 Napa Wooden Valley Grade 304 Comment
  JEPS122794  Arctostaphylos glandulosa Jake Ruygt 2008-5-3 5318 Napa Mt. St. Helena along fire trail, south side. QUAD: Detert Reservoir. Comment
  CAS-BOT-BC24862  Arctostaphylos glandulosa subsp. cushingiana Gertrude Raven Hardman 1968-2-1 s.n. Napa Pope Valley Comment
  RSA10632  Arctostaphylos glandulosa subsp. cushingiana C. B. Wolf 1928-5-4 1859 Napa Upper slopes of Mount St. Helena. Comment
  CAS-BOT-BC23143  Arctostaphylos glandulosa subsp. glandulosa Alice Eastwood; John Thomas Howell 1939-6-11 7432 Napa Hills west of Calistoga Comment
  CAS-BOT-BC23144  Arctostaphylos glandulosa subsp. glandulosa Alice Eastwood 1922-3-26 11116 Napa Mt. St. Helena Comment
  JEPS106417  Arctostaphylos glandulosa subsp. glandulosa Jake Ruygt 1981-4-12 974 Napa Grassy Hill near Palisades 670 Comment
  JEPS106418  Arctostaphylos glandulosa subsp. glandulosa Jake Ruygt 1986-3-16 1654 Napa 4.5 miles N of Westgate Dr. on Atlas Peak Rd. 463 Comment
  UCD73420  Arctostaphylos glandulosa var. glandulosa Ayzik Solomeshch; Stephen Rae 2007-7-8 s. n. Napa Brend-Morgan property, ca. 3 miles northeast of city of Napa. 215 Comment
  POM264995  Arctostaphylos manzanita I. L. Wiggins 1928-3-24 2861 A Napa Grade on old road to Lake Co. above Calistoga. Comment
  RSA633049  Arctostaphylos manzanita Jon E. Keeley 1993-9-11 24806 Napa On southeast side of Mt. St. Helena. 810 Comment
  UCSB22860  Arctostaphylos manzanita McMinn, H. 1936-4-4 Napa Howell Mt. Comment
  UCSB32987  Arctostaphylos manzanita Haller, John 1979-5-4 Napa Mead Ranch; near Atlas Peak Road; about 5 miles (by road) north of State Highway 121; 9 miles north of Napa 487 Comment
  SEINET11977791  Arctostaphylos manzanita Unknown 1852-1 452 Napa no further locality Comment
  SEINET11987318  Arctostaphylos manzanita J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4179 Napa Strybing Arboretum, Golden Gate Park, San Francisco, orig. from NE of Napa Comment
  CAS-BOT-BC38919  Arctostaphylos manzanita subsp. elegans John Thomas Howell 1926-3-21 s.n. Napa Mt. St. Helena, along trail to summit. Comment
  CAS-BOT-BC38727  Arctostaphylos manzanita subsp. manzanita Alice Eastwood 1918-9-3 7947 Napa Mt. St. Helena Comment
  CAS-BOT-BC38758  Arctostaphylos manzanita subsp. manzanita C. C. Parry 1888-2-1 s.n. Napa Calistoga Comment
  CAS-BOT-BC38763  Arctostaphylos manzanita subsp. manzanita Peter H. Raven 1954-1-22 6385 Napa Sulphur Springs Canyon just N. of the resort 213 Comment
  CAS-BOT-BC38764  Arctostaphylos manzanita subsp. manzanita John Thomas Howell 1930-7-13 5352 Napa Chaparral on the edge of the Crater Country Comment
  CAS-BOT-BC38766  Arctostaphylos manzanita subsp. manzanita John Thomas Howell 1930-3-23 4558 Napa About 1 mile se. of Mt. St. Helena Inn, near Mt. St. Helena. Comment
  CAS-BOT-BC38770  Arctostaphylos manzanita subsp. manzanita C. Hart Merriam 1907-7-27 s.n. Napa Mt. St. Helena, summit 1st ridge on road from Middletown to Knights Valley 731 Comment
  CAS-BOT-BC38775  Arctostaphylos manzanita subsp. manzanita Peter H. Raven 1954-2-22 6413 a Napa Hills just north of White Sulfur Springs, w. of St. Helena 152 Comment
  JEPS122806  Arctostaphylos manzanita subsp. manzanita Jake Ruygt 2007-1-21 5102 Napa Wild Horse Valley Road about .2 mile from east end. QUAD: Mount George Comment
  JEPS38707  Arctostaphylos manzanita subsp. manzanita W. L. Jepson 1895-12-26 14714 Napa hills e St. Helena Comment
  RSA181902  Arctostaphylos manzanita subsp. manzanita W. L. Jepson 1936-12-7 17993 Napa Glass Mt., near St. Helena. Comment
Read comments
Sep 3 2012
  UC2026414  Arctostaphylos manzanita subsp. manzanita Louis C. Wheeler 1952-8-30 6877 Napa MANGANESE RIDGE: Moore Creek, Howell Mountain. Comment
  UC521689  Arctostaphylos manzanita subsp. manzanita Joseph Andorfer Ewan 1933-9-17 8014 Napa Mt. St. Helena road 2 1/2 mi out Calistoga Comment
  UCD95691  Arctostaphylos manzanita subsp. manzanita Ellen Dean; with Clare Loughran 2011-5-20 7037 Napa On the border of Sonoma County. Private property at 4028 Spring Mountain Road. West of the town of St. Helena. 599 Comment
  UCD95921  Arctostaphylos manzanita subsp. manzanita Ellen Dean; with Clare Loughran 2011-5-20 7055 Napa On the border of Sonoma County. Private property at 4028 Spring Mountain Road. West of the town of St. Helena. Western side of property. 608 Comment
  CAS-BOT-BC43838  Arctostaphylos stanfordiana John Thomas Howell 1930-3-23 4559 Napa About 1 mile se. of Mt. St. Helena Inn. Near Mt. St. Helena. Comment
  CAS-BOT-BC43841  Arctostaphylos stanfordiana Alice Eastwood 1918-9-3 7940 Napa Mt. St. Helena Comment
  CAS-BOT-BC43847  Arctostaphylos stanfordiana Willis L. Jepson 1896-2-23 s.n. Napa La Jota Plateau, Howell Mt., Napa River Basin Comment
  CAS-BOT-BC43862  Arctostaphylos stanfordiana C. Hart Merriam 1906-8-15 s.n. Napa Mt. St. Helena (East side) Comment
  CAS-BOT-BC43871  Arctostaphylos stanfordiana Alice Eastwood 1907-3-29 s.n. Napa Mt. St. Helena Comment
  CDA11912  Arctostaphylos stanfordiana G. F. Hrusa, G. L. Stebbins 1994-3-11 11599 Napa North Coast Biodiversity Arena; Ink Grade approx. 2 miles N of Angwin on Howell Mtn. Comment
  CDA11914  Arctostaphylos stanfordiana G. F. Hrusa, G. L. Stebbins 1994-3-11 11598 Napa North Coast Biodiversity Arena; Ink Grade approx. 2 miles N of Angwin on Howell Mtn. Comment
  UC483311  Arctostaphylos stanfordiana Ira L. Wiggins 1932-3-12 5768 Napa hillside between Franz Valley and Calistoga Comment
  UC575711  Arctostaphylos stanfordiana John Thomas Howell and Alice Eastwood 1935-2-11 1937 Napa 5 mi e Napa; Wooden Valley Grade Comment
  UCD53856  Arctostaphylos stanfordiana Lewis S. Rose 1964-4-2 64015 Napa 2 miles southwest of Angwin. 243 Comment
  SEINET11987133  Arctostaphylos stanfordiana W. Knight, Knight, I. 1980-1 3825 Napa Tilden Botanic Gardens, Berkeley, orig. from Mt. St. Helena Comment
  SEINET12524559 Image available Arctostaphylos stanfordiana L. S. Rose 1935-1 35013 Napa Wooden valley grade 5 mi NE. of Napa. Comment
  JEPS106412  Arctostaphylos stanfordiana subsp. stanfordiana Jake Ruygt 1977-3-27 161 Napa Mt. St. Helena 853 Comment
  RSA195289  Arctostaphylos stanfordiana subsp. stanfordiana Gilbert Muth 1967-4-9 608 Napa Aetna Springs to Callistoga Road. 671 Comment
  RSA3949  Arctostaphylos stanfordiana subsp. stanfordiana I. L. Wiggins 1932-3-12 5768 Napa Hillside between Calistoga and Franz Valley. Comment
  RSA52686  Arctostaphylos stanfordiana subsp. stanfordiana I. L. Wiggins 1949-4-30 12084 Napa On saddle bout 1.5 mi. from summit of Mt. St. Helena. Comment
  RSA602256  Arctostaphylos stanfordiana subsp. stanfordiana L. C. Wheeler 1952-8-30 6876 Napa Manganese Ridge: Moore Creek, Howell Mountain. Comment
  SBBG5508  Arctostaphylos stanfordiana subsp. stanfordiana E. R. Blakley 1956-12-23 2017 Napa trail to Linda Falls, Angwin 426 Comment
  UCD73840  Arctostaphylos stanfordiana subsp. stanfordiana Ellen Dean; S. Rae 2008-5-21 4975 Napa Hills to the west of Hwy. 29. Private property accessed by Diamond Mountain Road. Canyon runnning east to west. 238 Comment
  UC876395  Arctostaphylos tomentosa subsp. crustacea Lewis S. Rose 1937-4-4 37017 Napa 8 mi ne Napa; Wooden Valley Grade 274 Comment
  CDA11905  Arctostaphylos viscida G. F. Hrusa, G. L. Stebbins 1994-4-8 11716 Napa North Coast Biodiversity Arena; Approx. 1/2 mile above Aetna Springs resort. Comment
  SEINET9336427  Arctostaphylos viscida Unknown 1994-4-8 11716 Napa Occasional in serpentine chaparral, dominated by Adenostoma and Quercus durata. Approx. 1/2 mi above Aetna Springs resort. Comment
  UCSB30734  Arctostaphylos viscida Kelly, Michael 1975-3-24 Napa Left side of road 15 mi. east of intersections of Highway 128 and 29 853 Comment
  CHSC83413  Arctostaphylos viscida subsp. pulchella L. P. Janeway; B. Castro 2002-5-12 7546 Napa Inner North Coast Ranges. Ridge top north of Cedar Creek, along road from Devilhead Road. 579 Comment
  JEPS120408  Arctostaphylos viscida subsp. pulchella Jake Ruygt 2007-3-31 5135 Napa Las Posadas State Forest, NE of Recreation Flat. Comment
  JEPS126085  Arctostaphylos viscida subsp. pulchella Jake Ruygt 1979-3-11 446 Napa 2.5 miles east of Silverado Trail on Sage Canyon Road. Yountville 7.5' Qua. Comment
  CAS-BOT-BC47450  Arctostaphylos viscida subsp. viscida Alice Eastwood 1922-5-5 11296 Napa Mt. St. Helena Comment
  CAS-BOT-BC47455  Arctostaphylos viscida subsp. viscida M. S. Jussel 1932-4-10 s.n. Napa St. Helena, 10 miles N.E. Cliff Spring Comment
  JEPS58782  Arctostaphylos viscida subsp. viscida W. L. Jepson 1938-5-22 18829 Napa Snell Valley Comment
  RSA13738  Aristolochia californica Annetta Carter 1936-3-15 1040 Napa Conn Creek Canyon, 3.4 miles out of Rutherford on road to Pop Valley, Napa County, Vine trailing over shrub on creek bank Comment
Read comments
Sep 12 2013
  CAS-BOT-BC400453  Aristolochia californica Laura Huffine 1929-4-1 s.n. Napa Berryessa Valley Comment
  UCD151054  Aristolochia californica P. B. Kaufman 1950-4-28 33 Napa besides Winters-Monticello road, approximately 9.5 miles from Winters near Yolo-Napa county line. Comment
  JEPS104525  Arnica discoidea Jake Ruygt 1978-5-7 293 Napa .5 miles south of Monticello Rd. on road to Wild Horse Valley 414 Comment
  JEPS35590  Arnica discoidea L. R. Heckard 1964-6-11 1364 Napa along Cal. 121 about 1/2 mi w of the first road summit e of Napa Comment
  RSA88576  Arnica discoidea L. S. Rose 1954-5-24 54049 Napa Summit, Wooden Valley grade, 6 miles N E of Napa. Comment
  JEPS123016  Arrhenatherum elatius Jake Ruygt 1991-6-10 2721 Napa Lake Henne, Friesen's Lakes. Quad: Saint Helena. Comment
  SEINET251850  Artemisia arbuscula subsp. arbuscula L. Shultz, J. Shultz 1986-9-20 10231 Napa Hills west of Calistoga 180 Comment
  SEINET258288  Artemisia douglasiana Unknown 1986-9-19 10231 Napa Napa County: in the northern end of the Napa Valley, on the west side of Calistoga. 110 Comment
  JEPS129155  Arum italicum Jake Ruygt 1993-2-13 3162 Napa End of Poison Road (county road). Cordelia 7.5' Quad. Comment
  JEPS104559  Asarum caudatum Jake Ruygt 1980-3-30 821 Napa Van Ness Canyon 609 Comment
  CAS-BOT-BC68860  Aspidotis californica Peter H. Raven 1950-4-15 1747 Napa Wooden Valley Grade above Napa 457 Comment
  POM262792  Aspidotis densa J. C. Roos 1938-12-10 286 Napa Blake's Canyon, Howell Mountain 305 Comment
  CAS-BOT-BC180454  Astragalus breweri G. L. Stebbins 1972-4-26 8082 Napa Chiles Valley road, about 1 mile northwest of State Highway no. 128 350 Comment
  JEPS107260  Astragalus breweri Jake Ruygt 1993-4-12 3195 Napa south of James Creek Road and Butts Cany on Road. 213 Comment
  CAS-BOT-BC178661  Astragalus claranus John Thomas Howell 1931-4-19 6442 Napa Conn Valley Comment
  RSA424722  Astragalus claranus Aaron Liston, M. Blumler, B. Grummer 1987-4-25 660 -1 Napa Napa Valley State Park. Comment
  CAS-BOT-BC178626  Astragalus clevelandii Edward Lee Greene 1883-8-1 s.n. Napa N. side of Mt. St. Helena Comment
  JEPS107253  Astragalus clevelandii Jake Ruygt 1991-6-29 2756 Napa 3.2 miles north of Pope Canyon Rd. on Berryessa-Knoxville R 121 Comment
  UC764094  Astragalus clevelandii R. F. Hoover 1938-9-23 3863 Napa Canyon of South Fork Butts Creek Comment
  UCD170808  Astragalus gambelianus 2018-4-28 3 Napa Cedar Roughs Wildlife Area, to the west of Lake Berryessa, on the south side of Pope Creek and Pope Canyon Road. Along Dollarhide Road (undeveloped road/trail) on the west side of Maxwell Creek. 154 Comment
  CAS-BOT-BC193127  Astragalus rattanii var. jepsonianus Maxine Wilkes 1933-5-21 s.n. Napa Mt. St. Helena Comment
  CAS-BOT-BC27753  Astragalus rattanii var. jepsonianus John Thomas Howell 1939-4-30 14625 Napa Walter Springs Comment
  UC862608  Astragalus rattanii var. jepsonianus John Thomas Howell 1939-4-30 14625 Napa Walter Springs; ; Walter Springs, Napa Co. Comment
  UCD164869  Astragalus rattanii var. jepsonianus Jake Ruygt 2012-11-3 5888 Napa Barton Hill, northwest shore of Lake Berryessa. 128 Comment
  JEPS107197  Astragalus tener var. tener Jake Ruygt 1982-3-28 1155 Napa Suscol plain between Kaiser Steel and HWY 29 (221) 4 Comment
  POM182693  Athysanus pusillus D. D. Keck 1931-4-2 1005 Napa Foot of Wooden Valley grade, 4 miles NE of Napa. 50 Comment
  UCD73412  Athysanus pusillus Ayzik Solomeshch; Stephen Rae 2007-3-19 s. n. Napa Oakville Ranch, northwest of the town of Yountville. Along Oakville Grade Road, ca. 6 miles west of the intersection with Hwy 29. Comment
  JEPS106814  Atriplex joaquinana Jake Ruygt 1991-9-14 2839 Napa northwest of end of Mini Drive, American Canyon 2 Comment
  UC850812  Atriplex triangularis Milo S. Baker 1932-9-24 6033 Napa low saline ground at Cutting's Wharf Napa R Comment
  SEINET10565955  Avena Ana Maria Planchuelo 1980-1 Planchuelo 509 Napa No other info available. Comment
  CAS-BOT-BC145927  Avena fatua E. Ruckert 1960-4-29 120 Napa 6465 Dry Creek Road. Pond 300 yards from house. 365 Comment
  UC1536745  Baccharis pilularis G. H. True Jr. 1937-10-12 841 Napa near Lokoya Lodge Comment
  CDA11627  Baccharis salicifolia G. F. Hrusa, S. Larson 1995-4-1 12055 Napa North Coast Biodiversity Arena; along Chiles Valley-Pope Valley Rd. approx 2 miles E of Lake Hennessey. Comment
  CAS-BOT-BC16529  Barbarea orthoceras Peter H. Raven 1953-5-2 5408 Napa Rector Creek. 396 Comment
  CAS-BOT-BC16532  Barbarea orthoceras G. DeNevers 1982-3-21 1941 B Napa Napa Range Mountains. On west slope of Mount George. Comment
  UCD129588  Blennosperma nanum Charles B. Heiser Jr. 1947-2-16 1882 Napa 3 miles north of Napa, near junction of Silverado Trail and road from Monticello. Comment
  JEPS18806  Blennosperma nanum var. nanum W. L. Jepson 1940-2-29 19498 Napa 4 mi se Yountville Comment
Read comments
Oct 4 2009
  CAS-BOT-BC31397  Bolboschoenus robustus Peter H. Raven 1952-8-26 5135 Napa Salt marshes near Bently Wharf. 15 Comment
  JEPS110568  Boschniakia strobilacea Jake Ruygt 1998-5-30 4009 Napa Mt. St. Helena, on RLS cabin trail. 792 Comment
  UC420469  Boykinia occidentalis H. P. Chandler 1907-5-30 7596 Napa White Sulphur Spr. St. Helena (St. Helena); White Sulphur Spr. Comment
  SACT000444  Brachypodium distachyon John Willoughby 1977-4-20 Napa foothill woodland 365.76 Comment
  UCD159930  Brachypodium distachyon Alice Warrick 2007-4-26 s.n. Napa Quail Ridge UC Reserve. 2005 Pleasure Fire burn site, along west loop road, north of Decker canyon. Q43-1. 243 Comment
  UCD81828  Brachypodium distachyon Ellen Dean 2009-4-24 5455 Napa Property on the SE slope of Mt. St. Helena. 3860 Hwy 29. 274 Comment
  UCD75843  Brassica nigra Jake Ruygt 1989-5-21 2345 Napa Napa, Willis Drive. 15 Comment
  UCD20758  Brickellia californica M. Bibbo; with E. Dean and K. Mawdsley 2002-8-29 108 Napa McLaughlin UC Reserve. S of the reserve near Hunting Creek campground where Hunting Creek Rd. crosses the Creek. 100 yards downstream of the campground. 640 Comment
  UCD121153  Briza maxima Ellen Dean; G. Golden, C. Loughran, PLB 102 interns 2012-4-29 7349 Napa East of Las Posadas Rd. California Dept. of Forestry's Las Posadas State Experimental Forest, east of the town of Angwin. Ca. 0.2 mile from Fire Station, along dirt road that travels north/northeast from Station. 522 Comment
  CAS-BOT-BC145365  Briza minor Peter H. Raven 1953-5-2 5368 Napa Valley floor east of Yountville. 76 Comment
  CAS-BOT-BC145366  Briza minor Carl B. Wolf 1928-5-3 1803 Napa 2 miles south of hawkins Mount Inn Camp. Comment
  SACT000478  Briza minor John Willoughby 1979-5-25 Napa Pansy Flat, in open grassy areas below stock pond 609.6 Comment
  CAS-BOT-BC484194  Brodiaea elegans var. elegans James L. Reveal 1987-6-7 6407 Napa Along California Highway 128 near its intersection with the Berryessa-Knoxville Road, about 5 miles west-northwest of Moskowite Corner, about 13.5 airline miles north of Napa 243 Comment
  RSA734159  Brodiaea laxa Keith E. Hoffmaster 1946-3-23 1206 Napa Napa range, along Napa-Monticello road Comment
  JEPS110911  Brodiaea leptandra Jake Ruygt 2003-6-7 4537 Napa Mt. George/Foote Botanical Preserve 268 Comment
  CAS-BOT-BC486434  Brodiaea terrestris subsp. terrestris Alice Eastwood; John Thomas Howell 1938-5-15 5517 Napa Myrtledale Hot Springs Comment
  CAS-BOT-BC144329  Bromus Carl B. Wolf 1928-5-3 1817 Napa 2 miles south of Hawkins Mount Inn Camp. Comment
  UCD58005  Bromus carinatus K. Esau 1935-5-5 s.n. Napa Near Petrified Forest, Calistoga. Comment
  SEINET238874 Image available Bromus carinatus var. carinatus Beecher Crampton 1956-5-25 3464 Napa Between Wragg Canyon and southeastern Capell Valley. Comment
  UCD60200  Bromus catharticus var. elatus Peter H. Raven 1951-5-20 2836 Napa Oakville. 48 Comment
  UCD120796  Bromus diandrus Ellen Dean; G. Golden, C. Loughran, PLB 102 interns 2012-4-29 7333 Napa East of Las Posadas Rd. California Dept. of Forestry's Las Posadas State Experimental Forest, east of the town of Angwin. Near entrance gate, west of fire station buildings. 521 Comment
  JEPS123009  Bromus hordeaceus Jake Ruygt 1977-4-24 195 Napa West of Pope Valley Elementary School on Butts Canyon Road. Quad: Saint Helena. Comment
  UCR49730  Bromus hordeaceus J. Nevin 1987-5-22 36 Napa Napa Valley, east end of Browns Valley, 1 mi on Buhman Avenue from Browns Valley Road 61 Comment
  JEPS76002  Bromus japonicus W. L. Jepson 1936-6-1 17590 a Napa Napa Range, Howell Mountains, w side of Four Corners Four Corners; Napa Range, Howell Mountains, Four Corners Comment
  JEPS123004  Bromus laevipes Jake Ruygt 1987-5-9 1972 Napa 1 mile east of Atlas Peak Road on Monticello Road. Quad: Mount George. Comment
  UCD58606  Bromus laevipes August L. Hormay 1932-6-19 s.n. Napa Mt. St. Helena. 4-5 miles southeast of Middleton. Comment
  UCD95906  Bromus laevipes Ellen Dean; with Clare Loughran 2011-5-20 7047 Napa On the border of Sonoma County. Private property at 4028 Spring Mountain Road. West of the town of St. Helena. 594 Comment
  SACT000578  Bromus mollis John Willoughby 1976-4-12 Napa Near Mount Vaca, in chaparral near top of ridge 609.6 Comment
  SEINET10523828  Bromus rigidus Ana Maria Planchuelo 1980-1 Planchuelo 406 Napa Rte 128, between winter and rutherford. Comment
  UCD59713  Bromus sterilis Beecher Crampton 1964-5-12 6950 Napa 2 miles north of Calistoga, State Hwy. 128, jct. Tubbs Lane. Comment
  UCD73502  Bromus sterilis Ayzik Solomeshch 2007-5-28 s. n. Napa northwest of the city of Napa. Woolls Ranch, 1032 Mt. Veeder Road. 152 Comment
  UCD59776  Bromus tectorum Beecher Crampton 1959-5-26 5264 Napa Above Capell Creek, north end of Capell Valley. Comment
  CDA5378  Buddleja davidii H. Stabo 1965-8-26 Napa Yountville Crossroads. 0 Comment
  JEPS100895  Calamagrostis ophitidis Dean W. Taylor 1998-5-14 16440 Napa Asbestos Mine, Steele Canyon (southerly arm of Lake Berryessa) 301 Comment
  UCD57740  Calamagrostis rubescens Freed W. Hoffman 1944-7-7 1973 Napa North Coast Ranges, Trinity Road. Comment
  UCD100264  Calandrinia ciliata R. L. Smith 1948-5-1 s.n. Napa Monticello. Comment
  JEPS120377  Calendula arvensis Jake Ruygt 1980-3-31 823 Napa end of McLean St., Napa Comment
  NY370184  Callitriche heterophylla var. bolanderi C. F. Baker 1903-4-19 2772 Napa St. Helena Comment
  JEPS120389  Callitriche heterophylla var. bolanderi Jake Ruygt 1983-4-7 1177 Napa east of Rocktram, west of Hwy 221, Suscol Plain Comment
  JEPS42831  Callitriche longipedunculata Willis L. Jepson 1893-4-26 13820 Napa Near Yountville; Napa River Basin Comment
  JEPS61629  Calochortus amabilis W. L. Jepson 1943-5-15 20775 Napa Knoxville Ridge Comment
  RSA450207  Calochortus amabilis J. C. Roos 1939-3-27 305 Napa Snell Valley, Pacific Union College, Angwin Comment
  SEINET3884899  Calochortus amabilis R. Wenk, L. Lina; A. Miles; J. Waggoner; E. Anderson 2000-4-22 5 Napa Mclaughlin Reserve, first ridge South og Knoxville-Berryessa Road, on Southeast side of Devilhead Road.; 0 515 Comment
  UC1134512  Calochortus amabilis B. O. Schreiber 1938-4-24 2494 Napa 5.2 mi nne Napa (Wooden Valley Grade); Napa Quad. 274 Comment
Read comments
Jan 14 2009
  UCD139466  Calochortus amabilis L. P. Thibault 1995-5-21 50 Napa on south side of Highway 128 about 3 miles west of Wragg Canyon Road. 250 Comment
  UCD139467  Calochortus amabilis M. Sidells 1996-4-27 26 Napa north of Route 128, 2 miles east of Lake Berreyessa. Putah Creek. 280 Comment
  UCD170664  Calochortus amabilis 2018-4-28 1 Napa Cedar Roughs Wildlife Area, to the west of Lake Berryessa, on the south side of Pope Creek and Pope Canyon Road. Along Dollarhide Road (undeveloped road/trail) on the west side of Maxwell Creek. 158 Comment
  UCD18372  Calochortus amabilis R. Wenk 2000-5-14 9 Napa SW side of Mayacamas Mountain Rd., off west side of St. Helena Rd. 140 Comment
  UCD22717  Calochortus amabilis Charles Gasser 1978-4-22 15 Napa Chiles/Pope Valley Road, 1.6 miles SW of junction with lower Chiles Valley Road. Comment
  CAS-BOT-BC488487  Calochortus amabilis Ira L. Wiggins 1949-4-20 12073 Napa Grassy slope along old toll road between Calistoga and Middletown, about 1.5 miles northeast of Calistoga. Comment
  UC796458  Calochortus amabilis Ira L. Wiggins 1949-4-30 12073 Napa about 1.5 mi ne Calistoga (along old toll road between Calistoga and Middletown) Comment
  UC917115  Calochortus amabilis W. M. Grannell 1950-4-27 15 Napa n side Putah Canyon Comment
  UCD139530  Calochortus luteus J. Buck 1996-6-2 23 Napa at Hennessey Lake along Highway 128, in field near the boat. 48 Comment
  UCD73515  Calochortus luteus Ayzik Solomeshch 2007-5-30 s. n. Napa northwest of the city of Napa. Woolls Ranch, 1032 Mt. Veeder Road. 152 Comment
  UCD14308  Calochortus luteus L. Coats 1983-5-29 50 Napa J and M Ranch; end of Green Valley Road, 1 mile from Coombsville Road and apporximately 100 yards inside of gate, next to road. Comment
  UCD39242  Calochortus luteus B. Crampton 1971-5-19 8713 Napa South of Wooden Valley. Napa and Solano County border. Comment
  UCD166652  Calochortus superbus Jake Ruygt 2005-6-1 4878 Napa Knoxville Wildlife Area; spur ridge of Blue Ridge, 1 mile N of Mays Flat. 283 Comment
  UCD170377  Calochortus superbus Daniel Potter; N Khuu 2016-5-8 874 Napa Knoxville Wildlife Area, west of Berryessa-Knoxville Road along trail from Zim Zim Falls trailhead to lower Nevada Creek, just west of tributary to Nevada Creek. 281 Comment
  JEPS129064  Calochortus tolmiei Jake Ruygt 1977-4-24 197 Napa 3.5 miles west of Butts Canyon Road on Aetna Springs Road. Detert Reservoir 7.5' Quad. Comment
  UC1103467  Calochortus tolmiei J. P. Tracy 1899-6-10 447 Napa 3-4 mi e Angwin's; Howell Mountain, Head of Moores Creek 457 Comment
  UC768703  Calochortus tolmiei R. F. Hoover 1941-4-27 4951 Napa e side Mt. St. Helena Comment
  CAS-BOT-BC132622  Calochortus uniflorus David D. Keck 1931-4-4 1097 Napa Geysers just NW. of Calistoga, northwestern Napa County 110 Comment
  JEPS17795  Calochortus uniflorus Willis L. Jepson 1893-5-2 Napa Calistoga Napa River Basin Comment
  UC143576  Calochortus uniflorus C. F. Baker 1903-4-19 1979 Napa Calistoga Comment
  UC1876236  Calycadenia fremontii Gerald D. Carr 1971-10-23 681 Napa 1/4 mi W of Berryessa-Knoxville Rd on Hwy 128. Comment
  UC1876264  Calycadenia fremontii Gerald D. Carr 1972-9-14 734 Napa 1.5 mi E of Howell Mt. Rd. on Conn Valley Rd. 121 Comment
  CAS-BOT-BC270611  Calycadenia multiglandulosa G. D. Carr 1971-6-17 566 Napa Junction of Howell Mountain, Deer Park, White Cottage Roads (Four Corners), ca. 1.5 miles SW of Angwin 424 Comment
  RSA255589  Calycadenia pauciflora Gerald D. Carr 1971-10-23 683 Napa Junction of Lower Chiles Valley and Pope Valley Roads Comment
  CAS-BOT-BC270822  Calycadenia pauciflora Gerald D. Carr 1971-9-20 668 Napa 1.8 miles SE of Lake County line on Morgan Valley Road, 125 yards N of road Comment
  JEPS38531  Calycadenia pauciflora W. L. Jepson 1938-10-1 19059 Napa bridge over Putah Creek Coyote Valley Comment
  UC1876240  Calycadenia pauciflora Gerald D. Carr 1972-8-9 726 Napa Mysterious Creek Rd., 10.0 mi SW of Berryessa-Knoxville Rd. Via Devilhead Rd. Comment
  UC1876268  Calycadenia pauciflora Gerald D. Carr 1971-9-20 668 Napa 1.8 mi SE of Lake Co. lne on Morgan Valley Rd. 125 yds N of road. Comment
  UC1876641  Calycadenia pauciflora Gerald D. Carr 1971-9-20 672 Napa 0.8 mi NW of Knoxville on Morgan Valley Rd. 457 Comment
  JEPS106926  Calycadenia truncata Jake Ruygt 1998-8-28 4108 Napa 1.2 miles north of Silverado Trail on Soda Canyon Road. 54 Comment
  JEPS20234  Calycadenia truncata Joseph P. Tracy 1938-8-7 16090 Napa 5 mi n of Napa City; Soda Creek Canyon 91 Comment
  UCD129878  Calycadenia truncata Gerald D. Carr 1971-11-6 686 Napa 0.8 mile south of Angwin on Howell Mt. Road. Comment
  JEPS120378  Calycadenia truncata Jake Ruygt 2004-7-31 4634 Napa Buzzards Roost, east of Stags Leap Comment
  CAS-BOT-BC271557  Calycadenia truncata subsp. truncata H. M. Hall 1924-9-30 s.n. Napa St. Helena Comment
  CAS-BOT-BC271560  Calycadenia truncata subsp. truncata H. M. Hall 1924-9-30 s.n. Napa St. Helena Comment
  CAS-BOT-BC271564  Calycadenia truncata subsp. truncata A. A. Heller 1941-9-22 16317 Napa About a mile north of Yountville Comment
  CAS-BOT-BC90959  Calycanthus occidentalis Peter H. Raven 1950-6-20 2335 Napa In the Napa Range between Saint Helena and Conn Valley. Comment
  HSC65076  Calycanthus occidentalis J. P. Smith, J. O. Sawyer 1970-5-17 3771 Napa 3 mi. S of Pope Valley Comment
  JEPS121524  Calycanthus occidentalis Adam C. Schneider with Dick O'Donnell 2013-5-26 210 Napa The downill (east ) side of the road cut of Butts Canyon Road, 2 miles south of Snell Valley Rd. Comment
  JEPS40320  Calycanthus occidentalis Willis L. Jepson Jul 1894 Napa Mt. St. Helena Comment
  SBBG9297  Calycanthus occidentalis S. Wagener 1955-5-16 73 Napa Conn Dam, St Hwy 128 Comment
  UC521695  Calycanthus occidentalis Joseph Andorfer Ewan 1933-9-17 8010 Napa 2.5 mi out Calistoga (Mt. St. Helena summit road); Mt. St. Helena Comment
  UCD164834  Calystegia collina subsp. collina Jake Ruygt 2012-6-2 5857 Napa Spanish Valley on south ridge. 350 Comment
  JEPS120397  Calystegia occidentalis Jake Ruygt 1985-5-18 1597 Napa Foss Valley Comment
  CAS-BOT-BC418629  Calystegia occidentalis R. K. Brummitt; B. Ertter; J. A. Ruygt 2012-6-16 22058 Napa Napa city, Alston Park, near Dry Creek Road 51 Comment
  CHSC112055  Calystegia occidentalis R. K. Brummitt; B. Ertter, J. A. Ruygt 2012-6-16 22058 Napa Napa city, Alston Park, near Dry Creek Road. 51 Comment
  UCD160744  Calystegia occidentalis subsp. fulcrata Ellen Dean 2015-5-23 8796 Napa Butts Canyon. Private property owned by Jobst Jesse. Permission for access and collecting granted. Along Butts Canyon/Guenoc Road just NW of Shell Valley Rd turn off. South side of road. 249 Comment
  SJSU8780  Calystegia purpurata J. C. Gibbany 1960-4-30 83 Napa Redwood Rd, 7 mi NW of Napa Comment
  UC796481  Calystegia purpurata Ira L. Wiggins 1949-4-30 12080 Napa on rocky ridge along old toll road between Calistoga and Middletown; between Calistoga and Middletown Comment
  CAS-BOT-BC224629  Calystegia purpurata subsp. purpurata Lester Rowntree 1938-5-16 s.n. Napa Atlas Peak, Napa Range Comment
  CAS-BOT-BC224630  Calystegia purpurata subsp. purpurata John Thomas Howell 1931-4-3 6119 Napa Pope Creek Canyon, 8 miles from Monticello, Napa Range Comment
  UCSC009032  Campanula angustiflora Dylan M. Neubauer 2015-4-26 134 Napa (NCoRI) Butts Canyon Road, .29 air-mi NW junction w/ Snell Valley Road 200 Comment
  CAS-BOT-BC37587  Cardamine californica Willis Linn Jepson 1896-2-22 s.n. Napa Napa River Basin. Hills of St. Helena. Comment
  UC1199191  Cardamine californica Joseph P. Tracy 1902-5-17 1529 Napa 3-4 mi e Angwin's (on hills at head of Moore's Creek, Howell Mountain); Northern Coast Ranges, Howell Mt., Moore's Creek 426 Comment
  JEPS106838  Cardamine californica var. californica Jake Ruygt 1982-1-24 1092 Napa Monticello Rd. 1.0 mile east of Vichy Ave. 109 Comment
  JEPS106837  Cardamine californica var. cardiophylla Jake Ruygt 1982-1-24 1093 Napa 3.8 miles south of Monticello Rd. on Wooden Valley Rd. 121 Comment
  UCR115091  Cardamine californica var. integrifolia G. Fred Hrusa, G. L. Stebbins 1994-3-11 11597 Napa Las Posadas State Forest, Immediately east of fire station in upper drainage of Moore Creek. 450 Comment
  POM369327  Cardamine californica var. integrifolia Dr H. de Forest 1930-3-23 s.n. Napa Mt. St. Helena. Ridge SE from mt. Comment
  UCD18023  Cardamine hirsuta Ellen Dean; with Susan Harrison, Dean Enderlend, Joe Callizo 2000-3-18 569 Napa Napa County. McLaughlin Reserve. Along Devil Head Rd. First ridge S of Knoxville -- Berryessa Rd., east side of Devil Head Rd. Along road leading up to air quality station. 545 Comment
  UCD114520  Cardamine hirsuta Michael A. Vincent; Ethan H. Freid 1998-4-7 8168 Napa along Route 128 at Road Marker 24\80. Comment
  JEPS106779  Cardaria draba Jake Ruygt 1981-5-3 1009 Napa American Canyon east of Flosden Rd. 42 Comment
  JEPS53322  Cardaria draba Willis L. Jepson 13398 Napa Napa Valley, Oak Knoll, between Napa and Yountville Oak Knoll; Napa River Basin, Napa Valley, Oak Knoll Comment
  RSA135620  Carduus pycnocephalus John H. Thomas 1955-5-21 5123 Napa Sarco Creek drainage, near State Hwy No. 37 about 6 miles from Napa 244 Comment
  UCD38974  Carduus pycnocephalus Beecher Crampton 1961-6-12 5897 Napa Wragg Canyon, Vaca Mts. along State Hwy. 128. Comment
  UCD159927  Carduus pycnocephalus subsp. pycnocephalus Alice Warrick 2008-4 s.n. Napa Quail Ridge UC Reserve. 2005 Pleasure Fire burn site, along west loop road, north of Decker canyon. 243 Comment
  CAS-BOT-BC17797  Carex amplifolia Hugh Leech 1972-11-6 s.n. Napa Napa Range. 2.5 miles north of Angwin. Comment
  UCD140158  Carex bolanderi G. F. Hrusa; M. Tu 1995-5-6 12160 Napa Moores Creek in Las Posadas State Forest. 500 Comment
  UCD140208  Carex brainerdii Jack Major 1961-6-13 547 Napa State Highway 128, 3.9 miles northwest of Moskowite's Corners. Comment
  UCD140261  Carex densa K. Esau 1935-5-5 s.n. Napa near Petrified Forest, Calistoga. Comment
  UCD161334  Carex densa Jake Ruygt 1982-4-25 1204 Napa Large meadow at base of Swartz Canyon. (Coordinates estimated by label maker at UC Davis). 243 Comment
  UCD161691  Carex densa Jake Ruygt 2010-5-20 5573 Napa Highway 29 north of Yount Mill Road, west side of road. (Coordinates converted from UTM data by label maker.) 45 Comment
  CAS-BOT-BC35074  Carex densa Peter H. Raven 1950-5-6 2019 A Napa Near Rt. 29, on Old Faithful Geyser road 2 miles north of Calistoga. Comment
  JEPS121349  Carex dudleyi Jake Ruygt 1996-4-20 3619 c Napa Jameson Canyon Vineyards entry road. Comment
  CAS-BOT-BC19982  Carex feta Joseph Prince Tracy 1938-6-6 15845 Napa Napa Valley. Between Napa City and Yountville. 30 Comment
  JEPS63727  Carex feta W. L. Jepson 1918-6-24 7666 Napa half way to tollhouse from Calistoga; Mt. St. Helena, Silverado 109 Comment
  CAS-BOT-BC119513  Carex nudata Lewis Samuel Rose 1961-3-30 61024 Napa Conn Reservoir. Lake Hennessy stream bank. 60 Comment
  RSA0011231  Carex nudata Lyman Benson 1930-3-31 35 Napa Town: Middletown (Lake Co); Mt. Range: N Coast; Mt. St. Helena at Lake Co. line. 518 Comment
  RSA155418  Carex nudata L. S. Rose 1961-3-30 61024 Napa Lake Hennessy. 61 Comment
  UCD161614  Carex nudata Jake Ruygt 2002-3-23 4370 Napa Snell Valley, Missimer Wildflower Preserve. 219 Comment
  CHSC83353  Carex praegracilis L. P. Janeway; B. Castro 2002-5-12 7530 Napa Inner North Coast Ranges. Small meadow/springs along Pocock Creek just upstream of the dirt road from Devilhead Road. 506 Comment
  UCD161702  Carex praegracilis Jake Ruygt 2010-5-1 5531 Napa Hunting Creek near campground. (Coorindates converted from UTM data by label maker.) 329 Comment
  UCD161577  Carex praegracilis Jake Ruygt 2007-4-10 5142 -b Napa Linda Falls / land trust property, Conn Creek. 445 Comment
  HSC103668  Carex serratodens Thomas W. Nelson, Jane Nelson 1981-4-14 6369 Napa Along Devil's Head Rd., at crossing of Cedar Creek 549 Comment
  JEPS121330  Carex serratodens Jake Ruygt 1982-5-5 1237 Napa American Canyon Comment
  UC1158108  Carex serratodens Joseph P. Tracy 1950-5-23 18684 Napa along branch of Moores Creek; Las Posadas State Forest, Howell Mountain 335 Comment
  CAS-BOT-BC116771  Carex subfusca Lewis Samuel Rose 1935-6-4 35206 Napa Moist open E slopes of Mt. St. Helena. Comment
  CAS-BOT-BC115550  Carex tumulicola Peter H. Raven 1951-6-24 3023 Napa Brown's Valley to Napa-Sonoma Rd. 91 Comment
  UCD161735  Carex tumulicola Jake Ruygt 2010-5-15 5504 -x Napa Las Posadas State Forest, south side of Moore Creek near Recreation Flat. 384 Comment
  RSA734130  Castilleja Keith E. Hoffmaster 1946-3-23 1242 Napa Napa range, along Napa-Monticello road. Comment
  RSA505374  Castilleja affinis R. C. Bacigalupi, Jon Dawson 1955-4-25 4843 Napa Along Conn Creek road, about 0.75 mile below (w. of) Lake Hennessey Dam. 79 Comment
  JEPS17072  Castilleja affinis subsp. affinis Rimo Bacigalupi with John Dawson 1955-4-25 4843 Napa about 0.75 mi w (below) Hennessey Lake Dam (along Conn Creek road) 79 Comment
  JEPS85281  Castilleja affinis subsp. affinis L. R. Heckard, R. Bacigalupi, P. C. Silva 1962-4-16 1301 a Napa 1 mi s Calif. Hwy. 37 junction with road to Wooden Valley (along Calif Hwy 37); Howell Mts. 304 Comment
  SEINET4392935  Castilleja affinis subsp. neglecta Laney Widener 2013-1 Napa Comment
  JEPS122742  Castilleja ambigua var. meadii Jake Ruygt 2011-5-28 5796 Napa West of Atlas Peak Road, 0.6 mi SW of Foss Valley. Quad: Yountville. Comment
  JEPS84872  Castilleja ambigua var. meadii Jake Ruygt 1986-5-18 1777 Napa ne of Napa (Atlas Peak road, upper end of Milliken Canyon); Milliken Canyon 448 Comment
  JEPS4856  Castilleja applegatei subsp. martinii Peter H. Raven 1953-5-2 5394 Napa Summit of hills due east of Yountville Comment
  RSA195298  Castilleja applegatei subsp. martinii Gilbert Muth 1967-5-17 680 Napa Oat Hill Road, Calistoga. 671 Comment
  JEPS103916  Castilleja applegatei subsp. martinii T. I. and F. M. Chuang 1991-6-23 7835 Napa Near summit between Calistoga and Middletown. Comment
  JEPS3803  Castilleja applegatei subsp. martinii W. L. Jepson 1894-7-19 Napa near Molly Patton's (Toll House) at summit (old grade over Mt. St. Helena); Mt. St. Helena 731 Comment
  JEPS5727  Castilleja applegatei subsp. martinii Rimo Bacigalupi and J. R. Sweeney 1951-6-3 3359 Napa road from Calistoga to Middletown (about 0.75 of the way up the summit, along grade over shoulder of Mt. St. Helena); Mt. St. Helena Comment
  JEPS88836  Castilleja applegatei subsp. martinii T. I. Chuang and F. M. Chuang 1991-6-23 7835 Napa near summit between Calistoga and Middletown Comment
  CDA12104  Castilleja attenuata G. F. Hrusa 1989-4-24 5963 Napa North Coast Biodiversity Arena; Hwy 128, approx. 10 miles S of Pope Valley. Comment
  JEPS129163  Castilleja attenuata Jake Ruygt 2015-3-28 6060 Napa Upper Bohn Lake. Aetna Springs 7.5' Quad. Comment
  JEPS110628  Castilleja densiflora subsp. densiflora Jake Ruygt 1978-5-14 309 Napa .3 mile south of Oak Knoll Ave. on Silverado Trail 19 Comment
  JEPS9416  Castilleja densiflora subsp. densiflora Willis L. Jepson 1893-5-1 21374 Napa Calistoga Napa River Basin, Upper Napa Valley Comment
  UC1301193  Castilleja densiflora subsp. densiflora Helen K. Sharsmith 1963-4-20 5331 Napa 4 mi s Napa (off Kelly Road); San Francisco Bay Region 45 Comment
  UCD19866  Castilleja exserta C. H. Lamoureux; J. M. Tucker and R. Gankin 1957-4-11 1199 Napa Lower slopes of Mount St. Helena, view spot north of Calistoga, along Hwy 29. Comment
  UC1301177  Castilleja foliolosa Helen K. Sharsmith 1963-3-17 5221 Napa s side Mt. Atlas; San Francisco Bay Region 609 Comment
  JEPS3673  Castilleja foliolosa C. R. Bell 1951-3-24 896 Napa 1.5 mi s Pacific Union College Comment
  UC765676  Castilleja minor subsp. spiralis R. F. Hoover 1938-9-23 3860 Napa canyon of south fork of Butts Creek Comment
  UC1607995  Castilleja minor subsp. spiralis Donald G. Nelson 1940-8-7 707 Napa about 3 mi nw Knoxville (at the sign of Harrison Mines); Coast Range Mountains Comment
  UC885436  Castilleja minor subsp. spiralis Milo S. Baker 1938-8-22 9222 Napa Lower Lake to Knoxville Road (just s of Lake-Napa County line) Comment
  SEINET10745043  Castilleja minor var. spiralis Willis L. Jepson 1897-7-13 Jepson 21113 Napa Moist rivulets, Butt's Canyon (Pope Valley to Coyote Valley), northern Napa Co. Comment
  SFV11129  Castilleja rubicundula subsp. lithospermoides F. M. Ball May 1961 Napa Route 29 north of Calistoga. 305 Comment
  UC726417  Castilleja rubicundula subsp. lithospermoides A. A. Heller 1941-5-16 16131 Napa about 3 mi w Knoxville (on the road to Lower Lake) Comment
  UC75151  Castilleja rubicundula subsp. lithospermoides C. F. Baker 1903-5-8 2965 Napa Knoxville Comment
  UCD160684  Castilleja rubicundula subsp. lithospermoides Ellen Dean; Susan Harrison, Sharon Strauss 2015-5-10 8756 Napa Along Shell Valley Road, east of Butts Canyon. South side of road. Land owned by Napa County Land Trust. Permission granted to collect. 177 Comment
  JEPS11153  Castilleja rubicundula subsp. rubicundula W. L. Jepson 1938-6-11 19010 Napa Knoxville Ridge Comment
Read comments
Jun 18 2012
  UCD63061  Castilleja rubicundula subsp. rubicundula Daniel Sanchez-Mata 2006-6-11 s.n. Napa Knoxville Public Lands. 650 Comment
  UCD149597  Catalpa bignonioides Stephen P. Rae; Ayzik Solomeshch 2006-5-30 s.n. Napa On the north side of Soscol Ridge, south of the city of Napa, ca. 3/4 km east of Highway 121, on the south side of Soscol Creek. 25 Comment
  UCD47950  Caulanthus lasiophyllus J. Pierner; S. Burgess, A. Hufton, A. Ryan, and B. Takahashi 2000-4-29 15 Napa Yolo Co/Napa Co line; McLaughlin Reserve, 1 mile (as the crow flies) N of old town of Knoxville. 640 Comment
  UCD74390  Caulanthus lasiophyllus Jake Ruygt 1986-4-5 1681 Napa Ridge to the south of Suscol Creek. 237 Comment
  JEPS42202  Ceanothus cuneatus var. cuneatus W. L. Jepson 1893-5-2 13987 Napa e Calistoga (Pope Valley Grade) Comment
  CAS-BOT-BC49798  Ceanothus divergens John Thomas Howell 1941-4-5 16159 Napa Franz Valley Comment
  CAS-BOT-BC49802  Ceanothus divergens T. S. Brandegee 1889-4-1 74 Napa Mt. St. Helena Comment
  CAS-BOT-BC64438  Ceanothus divergens Brandegee 1889-4-1 74 Napa Mt. St. Helena. Comment
  CAS-BOT-BC64441  Ceanothus divergens John Thomas Howell 1941-6-21 16320 Napa Hills sw. of St. Helena. Comment
  POM304578  Ceanothus divergens J. T. Howell 1941-4-5 s.n. Napa Franz Valley Comment
  RSA32476  Ceanothus divergens Milo S. Baker 1939-02 s.n. Napa 1.5 miles west of Napa-Calistoga Hwy at a point 3/4 mile south of Connor Ranch Comment
  CAS-BOT-BC83819  Ceanothus foliosus D. O. Burge; C. Miller 2007-6-12 941 b Napa Mayacmas Mountains, at roadside on Livermore Road 535 Comment
  RSA399074  Ceanothus foliosus Bonnie C. Templeton 1957-6-27 s.n. Napa 4 miles up trinity road near the junction to Oakville Comment
  UC18329  Ceanothus foliosus Willis L. Jepson 1893-5-8 Napa New Eden, Howell Mt. Grade Napa River Basin Comment
  UCD112134  Ceanothus foliosus var. foliosus M. Wiesendanger 1928-4-5 862 Napa Monticello Road. Comment
  UCD112138  Ceanothus foliosus var. foliosus Heidi E. M. Dobson 1978-5-6 318 Napa East slope of Mt. Veeder. Comment
  UC424875  Ceanothus incanus Milo S. Baker 1929-3-27 3423 b Napa North slope Mt. St. Helena along hwy Comment
  CAS-BOT-BC50794  Ceanothus integerrimus Brandegee 1889-6-1 20 Napa Toll House, Mt. St. Helena Comment
  UCD169649  Ceanothus integerrimus Jake Ruygt 2012-5-19 5840 -B Napa Crystal Flats, west of Putah Creek. 121 Comment
  CAS-BOT-BC50638  Ceanothus jepsonii H. M. Hall 1931-5-27 13098 Napa Near Knoxville Comment
  CAS-BOT-BC50641  Ceanothus jepsonii John Thomas Howell 1939-4-30 14633 Napa Walter Springs Comment
  SBBG50580  Ceanothus jepsonii R. F. Denno 1967-4-15 50 Napa 1 mi N on Lower Chiles Valley Rd off St Hwy 128 228 Comment
  CAS-BOT-BC32695  Ceanothus jepsonii var. albiflorus John Thomas Howell 1937-7-18 13100 Napa Mt. St. Helena Creek, northern part of county Comment
  CAS-BOT-BC83783  Ceanothus jepsonii var. albiflorus D. O. Burge; C. Miller 2007-6-12 940 b Napa Mayacmas Mountains, at roadside on Livermore Road 535 Comment
  UCD123958  Ceanothus jepsonii var. albiflorus D. O. Burge and C. Miller 2007-6-12 940 e Napa Mayacamas Mountains, at roadside on Livermore Road, near Rattlesnake Spring, 0.6 road miles (1.0 km) west of SR 29, 10.5 km 356 deg. (True) NNW of Calistoga. 535 Comment
  CAS-BOT-BC51562  Ceanothus oliganthus var. sorediatus H. E. McMinn 1923-5-26 974 b Napa Along Eticuera Creek tributary to Putah Creek Comment
  JEPS42216  Ceanothus oliganthus var. sorediatus W. L. Jepson 1893-4-25 14005 Napa w St. Helena (Caux's Knob) Comment
  LA44929  Ceanothus oliganthus var. sorediatus John Thomas Howell; 1931-4-3 6133 Napa Napa Range, Pope Creek Canyon, 8.5 mi. from Monticello Comment
  UC924228  Ceanothus oliganthus var. sorediatus H. S. Reed 1939-4-16 222 Napa Napa Hills 60 Comment
  UCD49126  Ceanothus oliganthus var. sorediatus L. Wynholds; S. Du Plessis, B. Erickson, and C. Mallek 2001-4-14 23 Napa SW end of Lake Berryessa, Quail Ridge Reserve, along South Decker Canyon Rd. between Cut-Off Rd. and Decker Ridge Rd. 266 Comment
  CAS-BOT-BC53177  Ceanothus parryi C. Hart Merriam 1915-6-19 s.n. Napa Ridge west of Napa (between Napa and Sonoma, above Sequoia Resort) Comment
  CAS-BOT-BC53221  Ceanothus parryi Alice Eastwood 1915-6-5 4651 Napa Calistoga Comment
  SBBG4433  Ceanothus parryi H. and M. Dearing 1939-3-2 3259 Napa Dry Crk Rd Comment
  UC1998002  Ceanothus parryi Joseph P. Tracy 1902-5-15 1462 Napa on hills at head of Moore's Creek, 3-4 miles east of Angwin's; Howell Mountain 365 Comment
  UC762309  Ceanothus parryi R. F. Hoover 1944-4-27 4946 Napa East side of Mt St. Helena Comment
  UC79862  Ceanothus parryi Katharine Brandegee June 1889 20 Napa Toll House , Toll House (Mt. St. Helena) Comment
  UCD112494  Ceanothus parryi Heidi E. M. Dobson 1978-5-6 319 Napa East slope of Mt. Veeder. Comment
  UCD112501  Ceanothus parryi Ray Prag 1970-6-9 s.n. Napa Highway 121, 2.2 miles south of junction with Wooden Valley Road. Comment
  JEPS48864  Ceanothus prostratus Elsa Kraeger 1926-3-28 Napa e slope Mt. St. Helena Comment
  CAS-BOT-BC52178  Ceanothus purpureus Willis L. Jepson 1894-2-23 s.n. Napa Near New Eden, Howell Mt. Grade, Napa River Basin Comment
  CAS-BOT-BC52189  Ceanothus purpureus H. E. McMinn 1925-1-24 1367 b Napa Summit Wooden Valley Grade Comment
  CAS-BOT-BC52198  Ceanothus purpureus John Thomas Howell 1937-7-4 13062 Napa Wooden Valley Grade Comment
  CDA11157  Ceanothus purpureus G. F. Hrusa, G. L. Stebbins, J. Callizo 1993-12-3 11568 Napa North Coast Biodiversity Arena; Howell Mtn., W face, 2-3 mi. W of Angwin, alongside Howell Mtn Rd. Comment
  JEPS2522 Image available Ceanothus purpureus W. L. Jepson 1893-4-28 Napa mountains n Mt. George; Napa River Basin; Mts. N of Mt. George, Napa River Basin Comment
  RSA22070  Ceanothus purpureus L. S. Rose 1939-4-16 s.n. Napa 4 miles NE of Napa. 198 Comment
  RSA758696  Ceanothus purpureus Dylan O. Burge 2007-5-4 DOB 905 c Napa Atlas Road, at roadside 5.7 road miles north of intersection with Monticello Road (SR 121), east of Milliken Canyon (Milliken Reservoir watershed), 11.4 km 20 degrees true north-northeast of Napa. 410 Comment
  SJSU14052  Ceanothus purpureus C. L. Schmidt 1987-5-24 1183 Napa Mt George off Monticello Rd CA-121 396 Comment
  UC1281276  Ceanothus purpureus H. E. McMinn 1944-6-8 1385 D Napa Wooden Valley Comment
  UC870639  Ceanothus purpureus Lewis S. Rose Apr 1939 39069 Napa 4 mi NE of Napa 198 Comment
  UC870641  Ceanothus purpureus Alice Eastwood and John Thomas Howell 1937-4-4 3832 Napa Wooden Valley Grade Comment
  SEINET13946225 Image available Ceanothus purpureus Peter H. Raven 1950-1 1768 Napa Wooden valley Grade above napa. Alt. ca 1500 ft 457 Comment
  SEINET13946085 Image available Ceanothus sorediatus Lewis S. Rose 1955-1 55043 Napa Conn Lake 5 mi E pf Rutherford. Alt. 500 ft. 152 Comment
  CAS-BOT-BC52894  Ceanothus velutinus H. E. McMinn 1922-3-27 58 Napa Mt. St. Helena Comment
  CAS-BOT-BC52896  Ceanothus velutinus Brandegee 1889-4-1 3 Napa Mt. St. Helena Comment
  UC1543130  Centaurea calcitrapa Donald G. Nelson 1940-8-7 699 Napa Highway from Napa to Wooden Valley Napa (n slope of George Mountain, along Sarco Creek); George Mountain, Sarco Creek 152 Comment
  RSA517740  Centaurea calcitrapa Donald G. Nelson 1940-8-7 699 Napa Highway from Napa to Wooden Valley, north slopes of George Mt. Along Sarco Creek (?) 152 Comment
  UC1199121  Centaurea calcitrapa Joseph P. Tracy 1940-10-27 16797 Napa Napa City Comment
  JEPS106534  Centaurium muehlenbergii Jake Ruygt 1995-7-12 3515 Napa about 2 miles south of Lake Hennessey on private drive (Taylor 432 Comment
  JEPS106657  Centromadia fitchii Jake Ruygt 1981-7-31 1086 Napa Suscol plain SE of Kaiser Steel 3 Comment
  CAS-BOT-BC272821  Centromadia parryi subsp. parryi Milo S. Baker 1933-9-9 7543 Napa Near Calistoga Geyser Comment
  UC894333  Centromadia parryi subsp. parryi Milo S. Baker 1931-7-9 5348 Napa flat near Calistoga Geyser Comment
  UC913083  Centromadia parryi subsp. parryi David D. Keck 1933-11-10 2715 Napa Calistoga Comment
  JEPS33817  Centromadia parryi subsp. parryi C. C. Parry 1881-7-1 129 Napa Calistoga Comment
  JEPS106652  Centromadia pungens subsp. pungens Jake Ruygt 1987-6-29 2093 Napa Horseshoe Bend, Napa River 3 Comment
  CAS-BOT-BC279254  Centromadia pungens subsp. pungens John Thomas Howell 1929-10-26 4542 Napa 9 miles north of Vallejo Comment
  OBI9960  Cephalanthus occidentalis H. E. McMinn 1925-1-24 1391 b Napa From garden Comment
  UCD164822  Cephalanthus occidentalis Jake Ruygt 2012-6-30 5870 Napa Putah Creek, north of Crystal Flats. 195 Comment
  JEPS110589  Cephalanthus occidentalis var. californicus Jake Ruygt 1991-7-20 2783 Napa Pope Creek at high water line of Lake Berryessa 131 Comment
  JEPS106731  Cerastium glomeratum Jake Ruygt 1982-3-2 1110 Napa north of HWY 12 near Huichica Creek 128 Comment
  UC588161  Cercis occidentalis Ethel Crum 1937-8-8 1956 Napa 7 mi se Monticello; Putah Creek Canyon Comment
  UCD48886  Cercis occidentalis S. Colby; L. Hanson, D. Bosworth, K. Sesser, and G. Belley 2001-4-14 27 Napa Quail Ridge Reserve, SE corner of Lake Berryessa, just W of Monticello Dam, along South Decker Canyon Rd, N of jct with Cut-Off Rd. 152 Comment
  CDA11904  Cercocarpus betuloides G. F. Hrusa, G. L. Stebbins 1994-4-8 11725 A Napa North Coast Biodiversity Arena; approx. 1/2 mile above Aetna Springs resort. Comment
  UC1784135  Cercocarpus betuloides Ethel Crum 1930-1 814 Napa St. Helena Comment
  CAS-BOT-BC135484  Cercocarpus betuloides var. betuloides Alice Eastwood 1918-5-1 6839 Napa Mt. St. Helena Comment
  SBBG115436  Cercocarpus betuloides var. betuloides B. Crampton 1966-5-10 7715 Napa 9 mi E of Rutherford on St Hwy 128 Comment
  UC2029551  Cercocarpus betuloides var. betuloides Richard R. Halse 2013-3-27 8754 Napa Along State Highway 128, ca. 5.3 miles eastt of its junction with State Highway 121 at Moskowite Corners Comment
  UC419739  Cercocarpus betuloides var. betuloides Mrs. H. P. Bracelin 1930-7-13 26 Napa s slope of Mount St. Helena Comment
  UC859440  Cercocarpus betuloides var. betuloides Alice Eastwood 1922-5-4 11280 Napa Mount St. Helena Comment
  CAS-BOT-BC284573  Chaenactis glabriuscula var. heterocarpha Peter H. Raven 1952-5-26 4060 Napa Nr. Walter's Springs 170 Comment
  CHSC102530  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2009-10-27 16486 Napa Below the high water line of Lake Berryessa, about 100 yards east of Eticuera Creek, about 50 yards south of Eticuera Parking Area at the northeast end of the causeway, on the south side of Berryessa Knoxville Road, about 20 miles (air) northwest of Winters. 130 Comment
  JEPS106426  Chamaesyce serpillifolia subsp. serpillifolia Jake Ruygt 1991-6-29 2761 Napa 3.2 miles north of Pope Canyon Rd. on Berryessa-Knoxville R 115 Comment
  UC1925871  Chamaesyce serpyllifolia Ethel Crum Oct 1930 912 Napa Conn Creek Road, Yountville to Pope Valley. Comment
  CAS-BOT-BC70163  Cheilanthes gracillima John Thomas Howell 1926-3-28 1763 Napa Summit of Mt. St. Helena Comment
  CHSC102272  Chenopodium album Lowell Ahart 2009-10-12 16435 Napa Below the high water line of Lake Berryessa, along Capell Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. 133 Comment
  JEPS106819  Chenopodium ambrosioides Jake Ruygt 1991-8-24 2835 Napa Napa River at Bale Lane 80 Comment
  JEPS59713  Chenopodium ambrosioides W. L. Jepson 1892-10-22 Napa St. Helena Napa River Comment
  JEPS106723  Chenopodium californicum Jake Ruygt 1989-4-22 2268 Napa east of HWY 121 on HWY 128 Comment
  JEPS126071  Chimaphila menziesii Jake Ruygt 1987-7-11 2068 Napa Between Rattlesnake Springs and Livermore Road. Detert Reservoir 7.5' Quad. Comment
  JEPS128905  Chloropyron molle Jake Ruygt 1979-7-29 783 Napa Fagan's Marsh. Cuttings Wharf 7.5' Quad. Comment
  CDA18829  Chondrilla juncea O. Dannenberg 1999-6-22 PDR 1103331 Napa Hwy 29 Yountville overpass, Yountville. 0 Comment
  CAS-BOT-BC256932  Chorizanthe membranacea W. L. Jepson 1891-6-1 s.n. Napa In the Vaca Mts Comment
  CAS-BOT-BC252842  Chorizanthe polygonoides var. polygonoides John Thomas Howell 1933-6-4 11392 Napa Hills east of Napa Comment
  RSA183452  Chorizanthe polygonoides var. polygonoides J. M. Tucker 1965-5-15 3827 Napa East side of Devilhead Road, Cedar Valley, 4 miles (airline) south and a little west of Knoxville 655 Comment
  UCD130309  Cichorium intybus B. Crampton 1952-11-18 956 Napa About 4 miles n. of Vallejo on road to Napa. Comment
  SBBG119104  Cichorium intybus J. P. Broughton 1977-7-12 71203 Napa School Rd and Mini Rd, Napa Comment
  CAS-BOT-BC278019  Cirsium cymosum John Thomas Howell 1940-5-19 15467 Napa St. Helena Creek Canyon near Montesol Comment
  JEPS59306  Cirsium cymosum var. cymosum W. L. Jepson 1938-6-8 18885 Napa w of Pope Valley; South Fork of Butts Creek Comment
  JEPS59225  Cirsium cymosum var. cymosum Willis L. Jepson 1892-7 Napa Knoxville Mountain Region of Clear Lake Comment
  CDA1214  Cirsium douglasii var. douglasii T. C. Fuller 1961-6-15 6339 Napa 0.5 mi. n. of American Canyon Rd. about 2 mi e. of Napa Junction (Hwy 29). Comment
  POM352174  Cirsium occidentale var. venustum T. Gertrude Williamson 1924-7-4 s.n. Napa Near St. Helena, Sulphur Springs Comment
  JEPS106934  Cirsium quercetorum Jake Ruygt 1992-5-15 2967 Napa Wild Horse Valley Ranch, west of road north of polo field 487 Comment
  CAS-BOT-BC288695  Cirsium remotifolium John Thomas Howell 1941-6-21 16314 A Napa Hills SW of St Helena Comment
  CAS-BOT-BC288696  Cirsium remotifolium John Thomas Howell 1941-6-21 16314 A Napa Hills SW of St Helena Comment
  UCD20709  Cirsium vulgare Mark Bibbo 2002-7-28 79 Napa Quail Ridge Reserve. SE corner of Lake Berryessa, just W of Monticello Dam. At end of Decker Bay Trail, on the dried up shores of Lake Berryessa inlet, ca. 30 feet from water's edge. 167 Comment
  UCD49182  Clarkia affinis A. Collier; D. Caterson and S. Kenady 2002-5-4 6 Napa Quail Ridge UC Reserve. At northern tip of ridge, N of the intersection of the jct of West and East roads. Along upper road leading to power lines. 335 Comment
  CAS-BOT-BC163512  Clarkia amoena subsp. huntiana James L. Reveal 1987-6-7 6406 Napa Along California Highway 128 near its intersection with the Berryessa-Knoxville Road, about 5 miles west-northwest of Moskowite Corner, about 13.5 airline miles north of Napa 243 Comment
  UCD69065  Clarkia arcuata P. Rodriguez-Rojo 1997-5-31 s.n. Napa Lower Chiles Valley Road. 240 Comment
  UCR260821  Clarkia arcuata M. Kauffman 1997-5-28 24 Napa North Coast Range, 0.3 mi. west of Berryessa-Knoxville Rd. on 128, 5.2 miles west of 121 & 128 junction, mile marker 18.71 on 128 366 Comment
  RSA449282  Clarkia breweri Rockwell s.n. Napa St. Helena. Comment
  CAS-BOT-BC172174  Clarkia concinna William Fottrell 1906-7-1 s.n. Napa Napa redwoods. Comment
  LA93786  Clarkia concinna Barrie Stanfield; 1966-5-22 51 Napa Napa Range, 5 mi S of Wooden Valley Comment
  HSC64520  Clarkia concinna subsp. concinna J. P. Smith, J. O. Sawyer 1970-5-17 3772 Napa 3 mi. S of Pope Valley Comment
  JEPS43613  Clarkia concinna subsp. concinna W. L. Jepson 1896-6-2 14426 Napa mouth Conn Valley (Conn Ridge); Napa Valley Comment
  UCD104446  Clarkia concinna subsp. concinna L. P. Thibault 1995-6-2 58 Napa South side of Highway 128, ca. 2 miles E of Lower Chiles Valley Road. 300 Comment
  SJSU11005  Clarkia concinna subsp. concinna C. H. Brocker 1966-3-8 93 Napa Rancho Monticello by NW shore of Lake Berressa Comment
Read comments
Aug 26 2011
  JEPS43732  Clarkia gracilis subsp. albicaulis W. L. Jepson 1938-6-8 18888 Napa n Pope Valley (Butts Canyon); South Fork of Butts Creek Comment
  UC762847  Clarkia gracilis subsp. albicaulis R. F. Hoover 1938-6-8 3538 Napa South Fork of Butts Creek Butts Creek Comment
  UC562521  Clarkia gracilis subsp. gracilis Joseph P. Tracy 1933-6-2 12490 Napa 5 mi e Angwin's; Howell Mountain, Moore's Creek 457 Comment
  JEPS110765  Clarkia gracilis subsp. sonomensis Jake Ruygt 1976-5-18 90 Napa 1.4 miles west of Madronna St. on Spring Mountain Rd. 152 Comment
Read comments
Aug 15 2010
  RSA0060035  Clarkia gracilis subsp. sonomensis Reino Alava 1957-5-30 1010 Napa 0.7 mile west of the Chiles Valley School. Comment
  SEINET4145440  Clarkia gracilis subsp. sonomensis K. Brandegee 1910-5-22 120 Napa Mountain flopes from Calistoga to the Toll House Comment
  JEPS110732  Clarkia purpurea subsp. quadrivulnera Jake Ruygt 1998-6-24 4052 Napa Rocky Ridge, east of Apple Tree Canyon. 676 Comment
  CAS-BOT-BC163692  Clarkia purpurea subsp. quadrivulnera M. S. Jussel 1937-5-23 s.n. Napa Mt. St. Helena Comment
  JEPS43571  Clarkia purpurea subsp. quadrivulnera W. L. Jepson 1893-6-24 14339 Napa grade to Napa Soda Springs; Napa Range Comment
  RSA92804  Clarkia purpurea subsp. quadrivulnera Peter H. Raven 1951-5-20 2841 Napa Hills west of Oakville 122 Comment
  UCD104908  Clarkia purpurea subsp. quadrivulnera Beecher Crampton 1950-5-7 566 Napa SE of St. Helena, along the Silverado Trail. Comment
  CAS-BOT-BC164774  Clarkia rhomboidea Peter H. Raven 1951-6-10 2907 Napa E. of Toll House, Mt. St. Helena 792 Comment
  UCD105090  Clarkia unguiculata L. P. Thibault 1995-5-19 38 Napa Northside of Highway 128, N of Lake Solano, approx. 2-3 miles E of Monticello Dam. 125 Comment
  RSA292921  Clarkia unguiculata Reino Alava 1957-5-30 979 Napa Along State Highway No. 128 at the Napa - Solano county line Comment
  UCD105039  Clarkia unguiculata M. Ensign 1943-5-28 305 Napa 10 miles N of Monticello on road to Lower Lake. Comment
  RSA464603  Claytonia exigua subsp. exigua H. de Forest 1930-3-23 s.n. Napa Mt. St. Helena. Ridge SE from mt. 701 Comment
  UC83788  Claytonia gypsophiloides C. F. Baker 1903-4-20 2611 Napa Mt. St. Helena Comment
  CHSC25144  Claytonia parviflora subsp. parviflora J. E. Beitler 1970-4-12 17 Napa Found at bottom of N.E. rail support below bridge over dam of Lower Spring Mountain reservoir. Comment
  UCR212302  Claytonia parviflora subsp. parviflora Ayzik Solomeshch, Stephen Rae 2007-3-19 s.n. Napa North Coast Range, Northwest of the town of Yountville, along Oakville Grade Road, c. 6 miles west of the intersection with Hwy 29 [onto Dry Creek Road?] Comment
  JEPS43304  Claytonia perfoliata subsp. perfoliata W. L. Jepson 1893-3-13 Napa St. Helena Comment
  JEPS77941  Claytonia perfoliata subsp. perfoliata Edward Lee 1936-3-15 1797 Napa 0.75 mi out Rutherford (Rutherford-Pope Valley road) Comment
  UCD95604  Clematis lasiantha Beecher Crampton 1954-5-18 1918 Napa 10 miles southwest of Monticello, along highway 128. Comment
  UCD95609  Clematis lasiantha Lynn B. Hendrix 1962-5-5 43 Napa South end of Lake Berryessa. Comment
  UCR146179  Clematis lasiantha Beecher Crampton 1954-5-18 1918 Napa Vaca Mountains, 10 minutes southwest of Monticello, along Highway 128 274 Comment
  CAS-BOT-BC92684  Clematis ligusticifolia John Thomas Howell 1929-8-4 4365 Napa One mile below Samuel Springs, Pope Creek Canon [Canyon], Napa Range. Comment
  JEPS55205  Clematis ligusticifolia Alice King July 1919 Napa Mt. St. Helena, Van Ness Ranch Comment
  JEPS5104  Collinsia greenei Milo S. Baker 1936-4 8581 Napa a few mi e Pope Val. (along Cape Val. Hwy from Monticello) Comment
  CAS-BOT-BC474510  Collinsia heterophylla Ellen Dean; D. Potter; D. Hickson; R. Ruygt; C. Donkers 2015-5-2 8672 Napa Knoxville Wildlife Area. Calif. Dept. of Fish and Wildlife public lands. Vicinity of headwaters of Nevada Creek. Northern part of land parcel. Along Nevada Creek. 470 Comment
  CDA10866  Collinsia heterophylla G. F. Hrusa, M. Rejmanek 1993-5-15 10961 Napa University of California, Quail Ridge Reserve betw. Hwy 128 and Lake Berryessa. Comment
  POM114307  Collinsia heterophylla Marcus E. Jones 1924-4-24 s.n. Napa Napa. Comment
  RSA187487  Collinsia heterophylla John H. Thomas 1955-5-21 5169 Napa Near State Highway No. 128 and Capell Creek, about 12 miles east of St. Helena. 244 Comment
  UCD18158  Collinsia heterophylla Eva Bayon; with Plant Biology 102 class 2000-4-29 s.n. Napa Napa County. McLaughlin Reserve. Ca. 0.20 - 0.50 miles as the crow flies N of site of old town of Knoxville, along road to Clover Valley. 463 Comment
  UCD123581  Collinsia heterophylla Alan P. Godlewski 1974-5-3 17 Napa west of Lake Berryessa, 100 yards from Highway 128. Comment
  UCD123621  Collinsia heterophylla M. Thibodeau 1995-4-15 9 Napa west of City of Winters, along Hwy 128. Quail Ridge Reserve, 15 meters north of main cabin. 274 Comment
  UC1196820  Collinsia sparsiflora var. arvensis Joseph P. Tracy 1933-4-30 12110 Napa 3-4 mi e of Angwin's (at head of Moore's Creek, Howell Mountain, La Jota Plateau); Northern Coast Ranges, Howell Mountain, La Jota Plateau 518 Comment
  UC608238  Collinsia sparsiflora var. arvensis B. O. Schreiber 1938-4-24 2497 Napa 5.2 mi n-ne of Napa (Wooden Valley Grade); Wooden Valley Grade 274 Comment
  POM15100  Collinsia sparsiflora var. arvensis C. F. Baker 1903-4-19 1984 Napa Calistoga. Comment
  RSA79469  Collinsia sparsiflora var. collina Lincoln Constance 1938-3-27 2034 Napa N. slope in Howell Mountains, 5 miles E. of Napa, North Coast Ranges. 457 Comment
  UCD170150  Collinsia sparsiflora var. sparsiflora Daniel Potter; Ninh Khuu, Travis Parker 2015-3-7 736 Napa East side of Berryessa-Knoxville Road, just west of the Knoxville Wildlife Area boundary 347 Comment
  UCD123678  Collinsia sparsiflora var. sparsiflora Carl A. Huether Jr. 1964-4-19 44 Napa south side of Soda Creek, 2 miles east of junction with Lower Chilies Valley Road and ca. 2 1/2 miles southwest of Lake Berryessa. Comment
  JEPS112525  Collinsia tinctoria Jake Ruygt 1987-6-6 2032 Napa Devil's Canyon near falls 548 Comment
  UC147867  Collinsia tinctoria Joseph P. Tracy 1904-5-23 2086 Napa near Calistoga (Napa Valley, top of Pratt Hill); Northern Coast Ranges, Napa Valley 91 Comment
  CAS-BOT-BC229531  Collomia diversifolia M. S. Baker 1948-5-12 12038 Napa Butts Canyon just below Black Oak Villa Comment
  JEPS101657  Collomia diversifolia Dean W. Taylor 1998-6-3 16467 Napa dirt rd 0.4 miles N Twin Peak Mine, Bateman Cr drainage 579 Comment
  UCD160748  Collomia diversifolia Ellen Dean 2015-5-23 8800 Napa Butts Canyon. Private property owned by Jobst Jesse. Permission for access and collecting granted. Along Butts Canyon/Guenoc Road just NW of Shell Valley Rd turn off. South side of road. 207 Comment
  JEPS110956  Collomia heterophylla Jake Ruygt 1982-5-26 1292 Napa Mt. St. Helena 731 Comment
  POM263160  Collomia heterophylla J. C. Roos 1939-4-29 260 Napa Blake's Canyon, Howell Mt. Comment
  UCD127324  Conium maculatum R. Tofsrud Date unknown s.n. Napa location unknown. Comment
  JEPS120436  Corallorhiza striata Jake Ruygt 1988-4-11 2140 Napa Newell Canyon. Comment
  JEPS55937  Cordylanthus pilosus subsp. pilosus T. I. Chuang and F. M. Chuang 1968-7-24 6484 Napa 10.9 mi n Calistoga Comment
  POM193912  Cordylanthus pilosus subsp. pilosus J. T. Howell 1929-8-4 4361 Napa One mile below Samuel's Springs, Pope Creek Canyon. Napa range. Comment
  JEPS55936  Cordylanthus pringlei T. I. Chuang and F. M. Chuang 1968-7-24 6483 Napa 10.9 mi n of Calistoga (on Lake and Napa County Line); Lake and Napa County Line Comment
  JEPS6645  Cordylanthus pringlei R. F. Hoover 1938-9-3 3793 Napa e side Mt. St. Helena Comment
  JEPS6821  Cordylanthus pringlei R. F. Hoover 1938-9-3 3793 Napa e side Mt. St. Helena Comment
  CAS-BOT-BC209799  Cornus glabrata H. E. McMinn 1922-8-2 359 Napa Putah Canyon Comment
  UCD164795  Cornus glabrata Jeff Page 2016-6-13 s.n. Napa Trubody Ranch, 5444 Trubody Lane. 21 Comment
  UC21525  Cornus nuttallii Willis L. Jepson 1893-1 Napa Toll-house Mt. St. Helena; Napa R. Basin, Mt. St. Helena Comment
  UCD110076  Corylus cornuta subsp. californica Baki Kasapligil 1964-4-11 3458 Napa Angwin 7 miles east of St. Helena, Howell Mt. Ca. 1700 along creek. Comment
  JEPS106939  Cotula australis Jake Ruygt 1994-3-14 3412 Napa Trancas Avenue east of Big Ranch Road 13 Comment
  SEINET3817855  Cotula coronopifolia J. M. Tucker 1959-4-18 3506 Napa In dry bed of small vernal pool near top of a hill, beside (south side of) Silverado Trail, ca. 3 miles east of Calistoga Comment
  JEPS120402  Crocanthemum scoparium var. vulgare Jake Ruygt 1981-5-17 1027 Napa Mount Vaca Comment
  RSA0020855  Crypsis schoenoides David J. Keil 1986-11-8 19798 Napa Along Lake Berryessa Knoxville Road near Knoxville. 3.0 miles south of turnoff to Homestake McLaughlin Mine/Mill. 350 Comment
  SBBG117229  Cryptantha clevelandii B. Crampton 1954-5-20 1929 Napa 8 mi SW of Monticello, along Hwy 128 Comment
  UCR141015  Cryptantha clevelandii var. dissita Beecher Crampton 1954-5-20 1929 Napa Inner North Coast Ranges, 8 miles southwest of Monticello, along highway 128 305 Comment
  UCD149660  Cryptantha flaccida Ayzik Solomeshch 2008-4-20 s.n. Napa North side of Pope Canyon Road, ca. 2 km west of intersection with Berryessa-Knoxville Road 140 Comment
  UC912356  Cryptantha flaccida Herbert L. Mason 1934-4-30 8105 Napa 5 mi s Monticello (tributary of Putah Creek); Putah Creek Comment
  UCD15987  Cryptantha hispidula C. D. Kennedy; L. Condon, R. Flannery, C. Hallock, and N. Strahan 2000-4-22 4 Napa McLaughlin Reserve, first ridge S of Knoxville-Berryessa Rd., along E-side of Devilhead Rd. 38 deg. 49' 11.3'' N; 122 deg. 21' 13.4'' W; 530 m. Comment
  UCD119813  Cryptantha hispidula Robert E. Preston 1988-4-10 574 Napa 0.4 mile southwest of the confluence of Putah Creek and Hunting Creek, on a southeast-facing serpentine slope. 268 Comment
  UCD74373  Cryptantha hispidula Jake Ruygt 2004-5-8 4595 Napa Berryessay-Knoxville Rd., about 1.6 mi. north of Homestake tunnel. 640 Comment
  UCD164838  Cryptantha microstachys Jake Ruygt 2012-5-12 5843 Napa Crystal Flats, west of Putah Creek. 182 Comment
  UCD161579  Cryptantha muricata Jake Ruygt 2007-5-17 5178 Napa Duff Ranch, NW of Potato Hill. 792 Comment
  UC175784 Image available Cryptantha torreyana var. calistogae Joseph P. Tracy 1904-5-23 2094 Napa hills e Calistoga; Northern Coast Ranges; hills E of Calistoga, Napa Co. 243 Comment
  CAS-BOT-BC80723  Cupressus macnabiana Elmer I. Applegate 1931-3-25 6621 Napa Near Mountain House, east base of Mt. St. Helena, northern Napa County Comment
  JEPS39791  Cupressus macnabiana W. L. Jepson 1897-7-12 21291 Napa near Samuel's Springs; Pope Creek Comment
  UCD133519  Cupressus macnabiana O. A. Leonard 1962-3-9 s.n. Napa 4 miles northwest of Knoxville on road to Lower Lake, near Napa County-Lake County line. 640 Comment
  UCD67772  Cupressus macnabiana D. Sanchez-Mata; P. Rodriguez-Rojo 1996-10-19 s.n. Napa MacLaughlin UC Natural Reserve. 680 Comment
  CAS-BOT-BC85483  Cupressus sargentii John Thomas Howell 1927-8-24 3050 Napa Moist, rocky stream-bottom, Butts Valley, on Pope Valley-Middletown road, Napa Range Comment
  CDA10848  Cupressus sargentii G. F. Hrusa, G. L. Stebbins 1994-4-18 11785 a Napa North Coast Biodiversity Arena; On hill above Swartz Canyon Rd. approx. 2 m. NW of Aetna Springs. 237 Comment
  CDA11902  Cupressus sargentii G. F. Hrusa, G. L. Stebbins 1994-4-8 11718 Napa North Coast Biodiversity Arena; Tree, 10 m in height, along small creek tributary to Swartz Creek. Colony on serpentine, approx. 1/2 mile above Aetna Springs resort. Comment
  CDA11909  Cupressus sargentii G. F. Hrusa, G. L. Stebbins 1994-4-8 11715 Napa North Coast Biodiversity Arena; Tree 8 meters tall, upper hillslopes above road on small rivulet. Serpentine area approx. 1/2 mile above Aetna Springs resort. Comment
  JEPS56136  Cupressus sargentii Donald V. Hemphill 1968-7-13 Napa sw of Lake Berreyessa (Cedar Roughs); Cedar Roughs 609 Comment
  UC972130  Cupressus sargentii Helen K. Sharsmith 1952-5-18 4083 Napa near Napa-Lake County boundary; Inner North Coast Ranges, Butts Canyon 213 Comment
  SEINET10531522  Cupressus sargentii Mary Susan Taylor, E. Pierce 1981-5-17 Taylor 3756 Napa Calistoga Pass, both sides of Hwy 29, ca 1 mile south of Lake County line. Comment
  SEINET10834046  Cupressus sargentii Carl B. Wolf, E. R. Johnson 1934-10-16 Wolf 2149 Napa Above Aetna Springs about 1/2 mile southwest of Quicksilver Mine. Upper sonoran:- Digger Pines. Sun. Rocky serpentine ravine. 455 Comment
  UCD170283  Cuscuta brachycalyx Daniel Potter; Ninh Khuu, Sarah Dohle, Casey Peters 2015-7-18 823 Napa Knoxville Wildlife Area, north of Nevada Creek. 481 Comment
  UCD69069  Cuscuta californica P. Rodriguez-Rojo 1997-5-31 Napa Butts Canyon Rd. Butts Creek. Parasite on annual grasses. UTM: 10SEN4884 180 Comment
  UCD161535  Cuscuta campestris Jake Ruygt 1991-8-24 2833 Napa Napa River at Bale Lane. 80 Comment
  UCD170278  Cuscuta howelliana Daniel Potter; Ninh Khuu, Sarah Dohle, James Shoulders 2015-6-13 812 Napa Knoxville Wildlife Area, above and north of Nevada Creek. 637 Comment
  UCD170291  Cuscuta howelliana Daniel Potter; Ninh Khuu, Sarah Dohle, Casey Peters 2015-7-18 831 Napa Knoxville Wildlife Area, above and north of Nevada Creek. 637 Comment
  UCD170456  Cuscuta howelliana Daniel Potter; Ninh Khuu 2016-6-8 885 Napa Knoxville Wildlife Area, above and north of Nevada Creek. 600 Comment
  POM180775  Cuscuta indecora J. T. Howell 1930-10-19 5624 Napa Five miles from Aetna Springs on Butts Canyon road to Middletown Comment
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Feb 4 2011
  JEPS129107  Cuscuta subinclusa Jake Ruygt 2015-6-20 6141 Napa Butts Canyon Road south of Snell Valley Road. Aetna Springs 7.5' Quad. Comment
  SEINET891444  Cuscuta subinclusa Harley P. Chandler 1906-1 7124 Napa Alta Loma Ranch. Howell Mountain. 487 Comment
  RSA195286  Cynoglossum grande Gilbert Muth 1967-4-19 603 Napa Aetna Springs Road. 305 Comment
  UCD19952  Cynoglossum grande E. A. Dean; Virginia Boucher 2002-2-28 890 Napa Quail Ridge Reserve. Along West Rd. 0.4 airline miles NW of junction of West Rd. and Decker Canyon Rd. 274 Comment
  CAS-BOT-BC190359  Cynosurus echinatus Betty H. Johnson 1958-6-20 s.n. Napa Along road near stream, near Mt. Mill House, 6.4 miles southwest of Middletown. Comment
  CDA1948  Cynosurus echinatus G. Breuer Jul 1957 Napa Calistoga. 0 Comment
  CHSC33995  Cynosurus echinatus J. D. Prouty 1980-4-12 861 Napa Roadbank of Hwy 29 ca. 4.5 mi sw of summit at R.L. Stevenson State Park. 243 Comment
Read comments
Mar 30 2009
  CAS-BOT-BC114682  Cyperus eragrostis Elsa G. Ruckert 1960-5-22 158 Napa 6495 Dry Creek Road. Pond 300 yds SW of house. 365 Comment
  CAS-BOT-BC114679  Cyperus eragrostis Kate E. Phelps 1930-7-1 s.n. Napa Sanitarium Comment
  UC579872  Cyperus eragrostis Annetta Carter 1935-12-1 1018 Napa w. side Wooden Valley Grade Comment
  CHSC107296  Cyperus erythrorhizos M. K. Byers; F. Favela, J. McDonnell 2009-8-29 218 Napa Lake Berryessa: In a moist, but drying arm of Lake Berryessa, off of Berryessa Knoxville Road, extending towards Capell Valley Road (Highway 128). Comment
  UCD20705  Cyperus erythrorhizos Mark Bibbo 2002-7-28 75 Napa Quail Ridge Reserve. SE corner of Lake Berryessa, just W of Monticello Dam. At end of Decker Bay Trail, on the dried up shores of Lake Berryessa inlet, ca. 30 feet from water's edge. 167 Comment
  UC1133517  Cyperus niger Beryl Schreiber 1938-9-25 2550 Napa Putah Creek Canyon, North Ranch Capay Quad., Putah Creek Canyon, North Ranch Comment
  CAS-BOT-BC70646  Cystopteris fragilis Evelina Cannon 1901-7-15 s.n. Napa Johannisberg, Mt. Veeder Comment
  CAS-BOT-BC70741  Cystopteris fragilis Peter H. Raven 1953-4-2 5292 Napa Tulucay Creek 243 Comment
  RSA10647  Cystopteris fragilis C. B. Wolf 1928-5-3 1842 Napa Summit of Mount St. Helena Grade, north of Calistoga. Comment
  SD27914  Cystopteris fragilis Carl B. Wolf 1928-5-3 1842 Napa St. Helena Grade north of Calistoga Comment
  CAS-BOT-BC190452  Dactylis glomerata Peter H. Raven 1952-5-29 4096 Napa 1 mile north Napa. 45 Comment
  JEPS122991  Danthonia californica Jake Ruygt 1988-5-28 2188 Napa Lovall Valley Road near county line. Quad: Sonoma. Comment
  UCD127387  Daucus carota K. Esau; D. Hartmann 1941-7-17 s.n. Napa Between Middletown and Calistoga. Comment
  JEPS129031  Daucus pusillus Jake Ruygt 2016-5-21 6259 Napa Wantrup Wildlife Preserver, Hardin Road. Santa Helena 7.5' Quad. Comment
  UCD48431  Daucus pusillus S. Murphy; K. Keck and K. Dyer 2002-5-5 6 Napa Quail Ridge UC Reserve, northern tip of ridge, ca. 200 m from intersection of West and East roads, north side of upper road leading to power lines and tip parcels. 388 Comment
  JEPS106658  Deinandra corymbosa Jake Ruygt 1988-6-26 2213 Napa 1.3 miles west of HWY 29 on Green Island Road 9 Comment
  JEPS126255  Deinandra corymbosa Devin Jokerst with Sarah Lynch 2016-5-25 Napa American Canyon. The undeveloped property is located west of Highway 29 and north of Green Island Road. Comment
  UCD161519  Deinandra corymbosa Jake Ruygt 1990-5-11 2536 Napa Green Island Road at first bend in road. 8 Comment
  CAS-BOT-BC10199  Delphinium hesperium P. H. Raven 1951-6-10 2931 Napa Crater Region E of Palisades 762 Comment
  POM161348  Delphinium hesperium Rimo Bacigalupi 1928-6-20 1856 Napa Howell Mt, 10 miles W of St Helena Comment
  UCD160787  Delphinium hesperium Ellen Dean; D. Potter, D. Hickson, R. Ruygt, C. Donkers 2015-5-2 8667 Napa Knoxville Wildlife Area. California Dept. of Fish and Wildlife public lands. Vicinity of headwaters of Nevada Creek. Northern part of land parcel. 470 Comment
  UCD74353  Delphinium hesperium G. Ledyard Stebbins 1967-5-30 6524 Napa Cedar Valley, south of Knoxville. (Exact location unknown. Coordinates estimated by label maker.) Comment
  LA207477  Delphinium hesperium H. Lewis; G. Mehlquist 1941-5-9 sn Napa Monticello to Fairfield road, 1 mi. S of junction with Napa Road Comment
  UC1031409  Delphinium hesperium H. Lewis and G. Mehlquist 1941-5-9 Napa Monticello to Napa rd 1.5 mi s road to St. Helena Comment
  SEINET13094845  Delphinium hesperium f. pallescens Joseph Andorfer Ewan 1934-1 8835 Napa Along Steel Canyon Rd. 1/2 mi. from jct. with Monticello-Winters Rd. Comment
  JEPS127855  Delphinium hesperium subsp. pallescens Adam C. Schneider with Will Freyman 2014-5-17 600 Napa Shadhiliyya Sufi Center at Walter Springs (accessed via turnoff from Pope Canyon Road). Comment
  CAS-BOT-BC10109  Delphinium hesperium subsp. pallescens John Thomas Howell 1939-4-30 14622 Napa Near Walter Springs Comment
  UC1031406  Delphinium hesperium subsp. pallescens H. Lewis and G. Mehlquist 1941-5-9 Napa 13.4 mi n Monticello Comment
  UC130936  Delphinium nudicaule Katharine Brandegee 1909-6-1 Napa from Calistoga; Pope Valley Grade Comment
  UCD102766  Delphinium nudicaule Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-22 s.n. Napa Berryessa-Knoxville Road. Between Moskowite Corner and Spanish Flat. 200 Comment
  RSA195349  Delphinium patens Gilbert Muth 1967-5-19 697 Napa Milliken Dam. 335 Comment
  CAS-BOT-BC116487  Delphinium patens subsp. patens P. Raven 1950-4-15 1749 Napa Wooden Valley Grade, above Napa 457 Comment
  JEPS110984  Delphinium patens subsp. patens Jake Ruygt 1981-4-18 979 Napa Harris Canyon 304 Comment
  CAS-BOT-BC116499  Delphinium patens subsp. patens Belle R. Jackson 1930-6-8 s.n. Napa On the old Toll Road below Patten's, Mt. St. Helena region Comment
  JEPS60576  Delphinium patens subsp. patens W. L. Jepson 1893-1 Napa Napa Mountains Comment
  SBBG2134  Delphinium patens subsp. patens H. and M. Dearing 1939-5-1 3244 Napa Spring Mtn, St Helena Comment
  UCD13263  Delphinium uliginosum Mary M. Hektner 1973-6-4 348 Napa Napa CO. Chiles and Pope Valley Road, ca 3 miles north of junction with Lower Chiles Valley Road. Comment
  UCD54385  Delphinium uliginosum Daniel Sanchez-Mata 2006-6-11 s.n. Napa Berryessa-Knoxville Road. 390 Comment
  SEINET3824804 Image available Delphinium uliginosum Unknown 1982-6-1 s.n. Napa 9.9 miles south of Middletown Lake or Napa county Comment
  CAS-BOT-BC17175  Delphinium variegatum Hilda Smyth 1899-1-1 s.n. Napa near Napa Comment
  UC1126377  Dendromecon rigida A. E. Wieslander 1931-5-11 183 Napa n slope of mountain n Calistoga; Calistoga Quadrangle, Mt. St. Helena 731 Comment
  CAS-BOT-BC657  Dendromecon rigida subsp. rigida Severin A. Baumann 1953-7-4 10 Napa Top of rocky hill, on edge of highway 2 miles from Oakville between Boyes Springs and Oakville. 213 Comment
  POM242806  Dendromecon rigida subsp. rigida Lyman Benson 1929-9-30 1930 Napa Mt. St. Helena 610 Comment
  UC187277  Deschampsia cespitosa subsp. cespitosa J. P. Tracy 1902-5-18 1543 Napa 3-4 mi. e. Angwin's (Moore's Creek, Howell Mt.); Howell Mt., Moore's Creek 518 Comment
  UCD61234  Deschampsia cespitosa var. cespitosa G. F. Hrusa 1988-4-16 5536 Napa North Coast Biodiversity Area. Butts Canon. 200 Comment
  UC766810  Deschampsia danthonioides R. F. Hoover 1941-4-26 4922 Napa Pope Valley Comment
  UCD164842  Deschampsia danthonioides Jake Ruygt 2012-5-19 5849 -b Napa Near Stone Corral Creek, Spanish Valley. 219 Comment
  CAS-BOT-BC599  Dicentra formosa subsp. formosa P. H. Raven 1953-4-2 5294 Napa Tulucay Creek 243 Comment
  SFV8407  Dichelostemma capitatum L. Dodge 1974-4-13 10 Napa Wallace Hardin Ranch, 3.9 miles northeast of junction of Pope Canyon Road and Chiles Valley Road. 183 Comment
  UC3238  Dichelostemma capitatum Willis L. Jepson 1893-5-2 Napa New Pope Valley grade Napa River Basin Comment
  CAS-BOT-BC499417  Dichelostemma capitatum Ira L. Wiggins 1928-3-24 2864 Napa Grade on road to Lake Co. above Colistoga Comment
  CAS-BOT-BC499420  Dichelostemma capitatum Belle Richardson Jackson 1938-5-29 s.n. Napa Road to Mt. Atlas Comment
  CHSC27760  Dichelostemma capitatum subsp. capitatum Ethel Pearson 1978-3-24 1 Napa Ca. 2.8 mi w of junction of State Hwy. 128 with Steele Canyon Rd. on Steele Canyon Rd. 152 Comment
  UCD139189  Dichelostemma capitatum subsp. capitatum J. D. Clark 1995-5-27 18 Napa Napa County. Collected on trail between 1/4-3/4 mile from trailhead at Highway 129. Trailhead begins on the E side of Highway 129 across from the Robert Lewis Stevenson State Park parking lot. 548 Comment
  UCD148736  Dichelostemma capitatum subsp. capitatum Jake Ruygt 1977-3-14 154 Napa Napa County; 2.2 miles north of Silverado Trail on Soda Canyon Road. 115 Comment
  UCD159913  Dichelostemma capitatum subsp. capitatum Alice Warrick 2008-4-6 s.n. Napa Quail Ridge UC Reserve. 2005 Pleasure Fire burn site, along west loop road, north of Decker canyon. West section. Near Q43. 243 Comment
  SEINET5725241 Image available Dichelostemma capitatum subsp. capitatum Jill Bockus 1974-1 2 Napa Wallace Hardin Ranch, 3 miles northeast of Pope Valley, 3.9 miles northeast of south end of Pope Canyon Road and Chilies Road Intersection; Pope Valley 183 Comment
  CAS-BOT-BC502160  Dichelostemma congestum John H. Thomas 1955-5-21 5115 Napa Sarco Creek drainage, near State Highway 37, about 6 miles from Napa. 274 Comment
  UCD160771  Dichelostemma congestum Ellen Dean; D. Potter, D. Hickson, R. Ruygt, C. Donkers 2015-5-2 8650 Napa Knoxville Wildlife Area. California Dept. of Fish and Wildlife public lands. Vicinity of headwaters of Nevada Creek. NE corner of land parcel. 594 Comment
  UCD82593  Dichelostemma congestum Ellen Dean; T. Starbuck 2009-5-4 5532 Napa Ridge above Lake Hennesy and Hwy 128 to the E of the Napa Valley. 426 Comment
  UC1094321  Dichelostemma congestum Peter H. Raven 1957-5-5 10773 Napa w edge Calistoga Comment
  UCD169613  Dichelostemma multiflorum Ayzik Solomeshch 2008-4 s.n. Napa north side of Pope Canyon Road ca 2 km west of intersection with Berryessa-Knoxville Road. 140 Comment
  CAS-BOT-BC150363  Diplacus aurantiacus James L. Reveal 1987-6-7 6398 Napa Vaca Mountains, along the Mix Canyon Road, 3 miles west of Pleasant Valley Road; about 6.5 miles northwest of Vacaville 609 Comment
  CAS-BOT-BC150365  Diplacus aurantiacus Gilbert Muth 1967-5-17 668 Napa Oat Hill Road, Calistoga 243 Comment
  CAS-BOT-BC150366  Diplacus aurantiacus L. R. Abrams 1916-7-12 5769 Napa Near St. Helena Sanitarium Comment
  SEINET13769181 Image available Diplacus aurantiacus J. W. Riekels 1961-1 40 Napa State highway 128, 2 miles southwest of Monticello Dam Comment
  CAS-BOT-BC151879  Diplacus congdonii David D. Keck 1931-4-2 1016 Napa Wooden Valley Grade west side of Napa Range, 5 miles NE of Napa 170 Comment
  CAS-BOT-BC151958  Diplacus douglasii John Thomas Howell 1940-5-19 15454 Napa Upper St. Helena Creek Comment
  SEINET200708  Diplacus douglasii J. P. Tracy 1902-1 1624 .5 Napa Head of Moore's Cr, 3-4 mi E of Angwin's, Howell Mountain 366 Comment
  CAS-BOT-BC153280  Diplacus kelloggii M. S. Jussel 1937-5-23 s.n. Napa Palisades Comment
  OBI49335  Diplacus layneae Joseph P. Tracy 1950-5-23 18662 Napa Howell MTn. On hills at head of Moore's Crk, 5 mi E of Angwin's Comment
  JEPS122985  Distichlis spicata Jake Ruygt 1982-6-29 1352 Napa Tubbs Lane at Myrtledale Road, Calistoga. Quad: Calistoga. Comment
  UCD64179  Distichlis spicata Beecher Crampton 1956-5-21 3445 Napa Myrtledale Hot Springs, 2 miles north of Calistoga. Comment
  JEPS115761  Dittrichia graveolens Lowell Ahart 2009-10-27 16503 Napa Intersection of Pope Canyon Road and Berryessa Knoxville Road, near Lake Berryessa, about 20 miles (air) west of Winters 152 Comment
  SBBG128696  Dittrichia graveolens L. Ahart 2009-10-27 16503 Napa sides of rds at intersection of Pope Cyn Rd and Berryessa Knoxville Rd, near Lake Berryessa, ca. 20 mi (air) W of Winters 152 Comment
  RSA604106  Dodecatheon hendersonii M. Sidells 1996-4-20 10 Napa along trail running along southwest side of Lake Bereyessa, 100 m from Knoxville Rd. 250 Comment
  UC1039589  Dodecatheon hendersonii Herbert L. Mason 1925-1-23 1206 Napa Wooden Valley grade Comment
  UCD118964  Dodecatheon hendersonii M. Sidells 1996-4-20 10 Napa Along trail running along southwest side of Lake Berryessa, 100m from Knoxville Rd. 250 Comment
  UCD15062  Dodecatheon hendersonii Jonathan M. Irvine 1977-4-16 106 Napa California, Napa Co.; along Highway 128, 6.4 miles south-southwest of Monticello Dam; Comment
  UCD73390  Dodecatheon hendersonii Ayzik Solomeshch; Stephen Rae 2007-3-19 s. n. Napa Oakville Ranch, northwest of the town of Yountville. Along Oakville Grade Road, ca. 6 miles west of the intersection with Hwy 29. Comment
  UC725316  Dodecatheon hendersonii A. A. Heller 1929-3-16 14817 Napa grade near foot Mt. St. Helena; grade near foot of Mt. St. Helena Comment
  UCD15065  Dodecatheon hendersonii Gail Matson 1977-4-16 23 Napa Napa Co.; along Highway 128, 6.4 miles southwest of Monticello Dam. Comment
  JEPS106561  Downingia bicornuta var. bicornuta Jake Ruygt 1993-5-1 3244 Napa Pope Canyon Rd at large vernal pond 187 Comment
  UC1189261  Downingia concolor var. concolor Joseph P. Tracy 1950-5-23 18673 Napa 3 mi e Angwin's; Howell Mountain, La Jota Plateau 518 Comment
  UC1746013  Downingia concolor var. concolor Annetta M. Carter, Joseph Tracy, Rimo Bacigalupi 1950-5-23 2776 Napa Howell Mtn. La Jota Plateau - Las Posadas State Forest. 533 Comment
  UCD148768  Downingia concolor var. concolor Jake Ruygt 1982-6-13 1322 Napa Napa County; Pope Canyon Rd., near large vernal pond on south side of road. 185 Comment
  JEPS82341  Downingia pusilla Robert F. Holland 1983-5-21 1233 Napa 3.5 mi s Route 121 (about 2200 ft w of Routes 12 and 29, e of the Napa River at Horseshoe Bend); Horseshoe Bend 3 Comment
  CAS-BOT-BC41386  Draba verna John Thomas Howell 1926-3-21 1727 Napa Saint Helena Creek Near Patten's. 609 Comment
  UC673417  Draba verna Herbert L. Mason 1926-3-14 2739 Napa Mt. St. Helena Comment
  UC1543126  Drymocallis glandulosa var. wrangelliana Charlotte G. Nast 1936-3-27 74 Napa Childs Canyon Comment
  CHSC31985  Dryopteris arguta L. Ahart 1976-3-7 1020 Napa Above Monticello Dam, ca. 2 mi sw of Monticello Dam. 152 Comment
  CAS-BOT-BC70949  Dryopteris arguta Rimo Bacigalupi 1924-2-22 s.n. Napa Toll house, Mt. St. Helena Comment
  CDA11616  Dryopteris arguta G. F. Hrusa, G. L. Stebbins 1994-3-11 11614 Napa North Coast Biodiversity Arena; Las Posadas State Forest, immediately E of Fire Station. Comment
  JEPS49899  Dudleya cymosa W. L. Jepson 1896-6-2 13420 Napa near St. Helena; Napa Valley Comment
  UC608384  Dudleya cymosa B. O. Schreiber 1938-4-24 2505 Napa 1/2 mi nw Knoxville; Reiff Quadrangle 609 Comment
  CAS-BOT-BC428152  Dudleya cymosa subsp. cymosa J. Clausen 1935-5-22 1066 Napa 19.5 mi. S.E. of Lower Lake, on the Monticello road Comment
  UCD148775  Dysphania ambrosioides Jake Ruygt 1986-7-12 1876 Napa Napa County; Napa River just south of confluence with Tulocay Creek. 1 Comment
  RSA518795  Echinodorus berteroi Barbara Ertter, E. Neese 1988-10-2 7968 Napa Lake Hennessey about 15 air miles north-northwest of Napa, on Conn Creek in North Coast Ranges. East of boat-launching ramp on southeast edge. 91 Comment
  CAS-BOT-BC445573  Echinodorus berteroi James L. Reveal 1987-6-7 6409 Napa Along California Highway 128 at the upper end of Lake Hennessey on meadowy flats just west of the turnoff to the Chiles and Pope Valley road, about 6.5 airline miles east-southeast of St. Helena Comment
  UCSB283  Echinodorus berteroi Keator, Glenn 1959-6-22 Napa On the southeast shore of Lake Hennessy, Napa range Comment
  CDA15844  Egeria densa O. Dannenberg 1999-10-12 PDR 1103332 Napa Pond at Bubbling Well Pet Memorial Park, city of Napa. Present in this site >20 yrs. 0 Comment
  JEPS120330  Ehrendorferia chrysantha Jake Ruygt 1987-6-27 2055 Napa Homestake Mine, Knoxville. Knoxville 7.5' Quad. Comment
  UCD167244  Ehrendorferia chrysantha Jake Ruygt 2000-6-10 4269 Napa Devilhead Road at top of first grade. 493 Comment
  JEPS121356  Eleocharis macrostachya Jake Ruygt 1996-5-13 3666 Napa .9 mile south of Pope Canyon Road on Hardin Road. Comment
  UCD19323  Eleocharis macrostachya M. A. Bibbo; E. Dean 2001-7-6 15 Napa Quail Ridge Reserve. SE corner of Lake Berryessa, just W of Monticello Dam. Along West rd, where W and E roads meet near point of Quail Ridge. S of powerline on edge of water hole downslope of the road. 320 Comment
  JEPS121344  Eleocharis radicans Jake Ruygt 1992-7-4 3066 Napa Wild Horse Valley Ranch, Johnson's Meadow. Comment
  CAS-BOT-BC451525  Elodea canadensis Peter H. Raven 1952-5-31 4110 Napa Conn Cr. e. of Yountville 45 Comment
  CAS-BOT-BC203833  Elymus X hansenii Peter H. Raven 1952-6-28 4206 Napa Conn Valley 137 Comment
  CAS-BOT-BC203592  Elymus glaucus subsp. glaucus Doris K. Kildale 1928-5-8 5046 Napa 3 miles west of Vacaville Comment
  JEPS122980  Elymus glaucus subsp. glaucus Jake Ruygt 1990-5-16 2551 Napa Calistoga Campground, Lommel Road. Quad: Calistoga. Comment
  JEPS76093  Elymus glaucus subsp. glaucus W. L. Jepson 1938-5-24 18851 Napa plateau n Four Corners; Napa Range, Howell Mountain 762 Comment
  JEPS84680  Elymus glaucus subsp. glaucus John W. Willoughby 1979-5-25 4327 Napa top of ridge just above Pansy Flat (flat is about 1 mi s of Signal Hill just below and to w of Blue Ridge); Vaca Mountains 609 Comment
  SACT001119  Elymus glaucus subsp. glaucus John Willoughby 1975-5-23 Napa West of Monticello Dam, in foothill woodland. Comment
  JEPS27637 Image available Elymus glaucus var. jepsonii Willis L. Jepson 1893-1 14058 Napa Napa Valley Napa River Basin; Napa River Basin, Napa Valley Comment
  CAS-BOT-BC234136  Elymus multisetus Peter H. Raven 1952-5-31 4143 Napa Summit of hills SW of Rector Canyon 304 Comment
  UCD32570  Elymus multisetus Beecher Crampton 1954-5-20 1923 Napa 4 miles east of Rutherford, along highway 128, southern shore of Conn Reservoir. Comment
  CAS-BOT-BC213803  Elymus repens Peter H. Raven 1952-8-26 5151 Napa Road NE of Buchli Station 30 Comment
  JEPS110831  Emmenanthe penduliflora Jake Ruygt 1989-5-9 2306 Napa about 1/2 mile south of Monticello Dam on Vaca Mtns. 396 Comment
  HSC43935  Emmenanthe penduliflora Robert M. Specht 1977-4-26 789 Napa N from Adams Creek on N side 470 Comment
  UCD166680  Emmenanthe penduliflora var. penduliflora Jake Ruygt 1996-6-1 3730 Napa Hwy 128 about 3/4 mile north of Turtle Rock Cafe. 259 Comment
  CHSC102278  Epilobium ciliatum subsp. glandulosum Lowell Ahart 2009-10-12 16446 Napa Below the high water line of Lake Berryessa, along Capell Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. 133 Comment
  JEPS2500 Image available Epilobium densiflorum Willis L. Jepson 1893-6-26 14390 Napa stream beds Napa River Basin, Howell Mt.; Howell Mt., Napa River Basin Comment
  UCD167248  Epilobium densiflorum Jake Ruygt 1996-7-13 3774 Napa Angwin, near Sanitation ponds. 481 Comment
  JEPS110714  Epilobium minutum Jake Ruygt 1981-5-6 1017 Napa .2 mile east of Walter Springs on Pope Canyon Rd. 182 Comment
  UC144088  Epilobium minutum J. P. Tracy 1902-5-16 1499 Napa 3-4 mi e Angwin's (head of creek); Howell Mountain, Moore's Creek 457 Comment
  UCD167254  Epilobium minutum Jake Ruygt 1992-4-10 2904 Napa Johnson's Meadow, Wild Horse Valley Ranch. 426 Comment
  JEPS38232  Epilobium torreyi W. L. Jepson 1938-6-8 18897 Napa Suell Valley Comment
  UCSB4279  Epilobium torreyi 1959-6-22 Napa Near southeast shore of Lake Hennessy, Napa Range Comment
  RSA261479  Epipactis gigantea Stephen L. Clement 1973-5-18 65 Napa At the junction of Snell Valley Road and Butts Canyon Road 274 Comment
  CAS-BOT-BC57894  Equisetum X ferrissii Peter H. Raven 1951-10-28 3922 Napa Yountville. 60 Comment
  JEPS106940  Ericameria arborescens Jake Ruygt 1991-12-7 2849 Napa Mead Ranch, Atlas Peak Rd, ridge over Soda Canyon 554 Comment
  UC31075  Ericameria arborescens W. L. Jepson 1894-10-14 Napa near Calistoga (Rebecca Ranch Grade) Comment
  CHSC102267  Erigeron canadensis Lowell Ahart 2009-10-27 16477 Napa Below the high water line of Lake Berryessa, about 100 yards east of Eticuera Creek, about 50 yards south of Eticuera Parking Area at the northeast end of the causeway, on the south side of Berryessa Knoxville Road, about 20 miles (air) northwest of Winters. 130 Comment
  UCD63174  Erigeron foliosus var. franciscensis Jake Ruygt 1996-6-23 3755 Napa Wantrup Wildlife Sanctuary, Hardin Road, Pope Valley. 438 Comment
  UCD161621  Erigeron petrophilus var. petrophilus Jake Ruygt 2004-8-28 4652 Napa southwest of Bear Valley on ridge, east of 'Cub Valley'. 719 Comment
  UCD63175  Erigeron petrophilus var. petrophilus Jake Ruygt 1981-7-23 1083 Napa Berryessa Peak. 914 Comment
  UCD63172  Erigeron reductus var. angustatus Jake Ruygt 2007-7-1 5247 Napa West of Hwy 29, near Lake County line. 464 Comment
  SEINET3091529 Image available Eriodictyon californicum Royal D. Suttkus 1967-6-26 67- 30 -17 Napa Clearly Reserves, 7.2 miles NW of Pope Valley. Comment
  UCD48051  Eriodictyon californicum E. Anderson; L. Lina, A. Miles, J. Waggoner, and R. Wenk 2000-4-22 11 Napa Napa County, California. McLaughlin Reserve, first ridge South of Knoxville-Berryessa Road, on Southeast side of Devil Road. 515 Comment
  UCD49079  Eriodictyon californicum K. Mogel; B. Pekin and M. Higley 2002-5-4 17 Napa Quail Ridge UC Reserve. At northern tip of ridge, N of the jct of West and East roads; ca. 400 ft. along the upper road that leads to the power lines; on side of road. 335 Comment
  CAS-BOT-BC242612  Eriogonum dasyanthemum John Thomas Howell 1933-8-27 11652 Napa Chiles Valley, Napa Range Comment
  RSA207  Eriogonum dasyanthemum J. T. Howell 1927-8-23 681 Napa Chiles Valley, Napa Range. 213 Comment
  SBBG1475  Eriogonum dasyanthemum J. M. Tucker 1941-9-20 394 Napa Putah Cyn, Vaca Range Comment
  CAS-BOT-BC266060  Eriogonum luteolum John Thomas Howell 1933-8-27 11653 Napa Chiles Valley, Napa Range Comment
  CAS-BOT-BC266064  Eriogonum luteolum Alice Eastwood; John Thomas Howell 1939-6-11 7425 Napa Hood Mt. Range SW of Oakville Comment
  UCD149671  Eriogonum luteolum Ayzik Solomeshch 2008-4-20 s.n. Napa North side of Pope Canyon Road, ca. 2 km west of intersection with Berryessa-Knoxville Road 140 Comment
  JEPS110760  Eriogonum luteolum var. luteolum Jake Ruygt 1992-8-31 3131 Napa Wild Horse Valley Ranch, north of Leoma Lakes 411 Comment
  JEPS110790  Eriogonum luteolum var. luteolum Jake Ruygt 1984-6-23 1572 Napa Hwy 29 near Lake Co. line: Detert Reservoir quad 502 Comment
  SEINET3405144 Image available Eriogonum luteolum var. luteolum Susan G. Stokes 1933-8-27 80 Napa Sage Canyon, Napa Mountains Comment
  UC1198106  Eriogonum luteolum var. luteolum J. P. Tracy 1899-7-6 442 Napa 3-4 mi e Angwin's (head of Moore's Creek); Howell Mountain, Moore's Creek 365 Comment
  UC535082  Eriogonum luteolum var. luteolum Susan G. Stokes 1933-8-27 80 Napa Sage Canyon Napa Mountains, Sage Canyon Comment
  UC6529  Eriogonum luteolum var. luteolum Willis L. Jepson 1893-9-21 Napa Wooden Valley grade Napa River Basin, Wooden Valley grade Comment
  UC6530  Eriogonum luteolum var. luteolum Willis L. Jepson 1893-9-21 Napa Wooden Valley grade Napa River Basin, Wooden Valley grade Comment
  UCD18119  Eriogonum luteolum var. luteolum K. Carpenter; with E. Dean and K. Chaney. 2000-8-18 56 Napa Napa County. McLaughlin Reserve. First ridge south of Knoxville -- Berryessa Rd., east side of Devil Head Rd., top of ridge by air quality station. 560 Comment
  JEPS116864  Eriogonum luteolum var. luteolum David Gowen 2007-9-10 796 Napa Butts Canyon Road at Snell Valley Road. Comment
  JEPS56601  Eriogonum nudum var. auriculatum Willis L. Jepson 1903-9-6 2348 Napa St. Helena Comment
  UC521699  Eriogonum nudum var. auriculatum Joseph Andorfer Ewan 1933-9-17 8001 Napa near Stevenson monument; Mt. St. Helena Comment
  LA206919  Eriogonum nudum var. auriculatum Susan G. Stokes; 1983-8-27 87 Napa Sage Valley, Napa Mountains, Roadside talus Comment
  CAS-BOT-BC124287  Eriogonum nudum var. nudum Susan Gabriella Stokes 1933-8-27 88 Napa Near Chiles Valley, Napa Range Comment
  CAS-BOT-BC269713  Eriogonum nudum var. oblongifolium Peter H. Raven 1951-8-21 3869 Napa Ridge s.e. of Mt. Veeder 670 Comment
  CAS-BOT-BC269715  Eriogonum nudum var. oblongifolium John Thomas Howell 1929-8-4 4357 Napa One mile below Samuels Springs, Pope Creek Canon [Canyon], Napa Range Comment
  UCD18120  Eriogonum nudum var. oblongifolium K. Carpenter; with E. Dean and K. Chaney. 2000-8-18 57 Napa Napa County. McLaughlin Reserve. First ridge south of Knoxville -- Berryessa Rd., east side of Devil Head Rd., top of ridge by air quality station. 560 Comment
  CAS-BOT-BC267864  Eriogonum umbellatum var. bahiiforme Peter H. Raven 1951-6-10 2932 Napa Crater Region e. of Palisades 762 Comment
  SEINET3386691 Image available Eriophyllum lanatum Lewis S. Rose 1934-5-23 34275 Napa N. Slope of Mt. St. Helena Comment
  CAS-BOT-BC301052  Eriophyllum lanatum var. achilleoides L. R. Abrams 1928-5-4 12284 Napa 4 mi. south of Middletown Comment
  UC165848  Eriophyllum lanatum var. achilleoides J. P. Tracy 1902-5-21 1570 Napa head of Moore's Creek (3-4 mi e of Angwin's); Howell Mountain, Moore's Creek 457 Comment
  UC1980566  Eriophyllum lanatum var. achilleoides James L. Reveal 1987-6-7 6403 Napa Along California Highway 128 between Winters and Rutherford, 5.5 miles southeast of Moskowite Corner, about 11 airline miles northeast of Napa and South of Lake Berryessa. Comment
  CAS-BOT-BC301045  Eriophyllum lanatum var. achilleoides S. Saufferer 1973-5-24 222 Napa About 5 mis. northeast of Calistoga along Highway #29 Comment
  CAS-BOT-BC301046  Eriophyllum lanatum var. achilleoides S. Saufferer 1973-5-24 222 Napa About 5 mi. northeast of Calistoga along Highway #29 Comment
  POM358026  Eriophyllum lanatum var. achilleoides B. C. Templeton 1957-6-27 s.n. Napa Near Hill and Connors Ranches, Calistoga Comment
  UC1051754  Eriophyllum lanatum var. achilleoides Helen K. Sharsmith 1953-6-15 4185 Napa se slope of Cappell Valley just w of junction of Cappell Valley <road> and Monticello road; Cappell Valley 274 Comment
  JEPS106526  Erodium botrys Jake Ruygt 1979-5-19 608 Napa Giles-Mead Ranch 481 Comment
  JEPS85038  Erodium botrys Larry Heckard and Mary Ashton 1969-5-3 2196 Napa 7 mi ne Napa (Mead Ranch, off the Atlas Peak Rd) 457 Comment
  UCD159949  Erodium cicutarium Alice Warrick 2007-5-11 s.n. Napa Quail Ridge UC Reserve. 2005 Pleasure Fire burn site, along west loop road, north of Decker canyon. Q-49. 243 Comment
  JEPS17418  Eryngium aristulatum var. aristulatum Willis L. Jepson 1893-9-25 14269 Napa Napa City rd. to Suscol House, within ca. 2 mi. of Suscol House, Lone Tree Farm Napa River Basin, Suscol Hills, Lone Tree Farm Comment
  RSA542106  Eryngium aristulatum var. aristulatum Robert F. Hoover 1937-8-31 2700 Napa Yountville Comment
  UC619330  Eryngium armatum Wilhelm N. Suksdorf 1913-7-24 645 Napa near Napa, SW Comment
  UCD160760  Eryngium castrense Ellen Dean; D. Potter, D. Hickson, R. Ruygt, C. Donkers 2015-5-2 8630 Napa Knoxville Wildlife Area. California Dept. of Fish and Wildlife public lands. Vicinity of headwaters of Nevada Creek. NE corner of land parcel. 594 Comment
  CAS-BOT-BC54304  Erysimum capitatum David D. Keck 1931-4-2 1031 Napa Wooden Valley road, east side of Napa Range, 8 miles from Napa. Comment
  CAS-BOT-BC54306  Erysimum capitatum Mrs. H. C. Cantelow 1939-4-8 2498 Napa 0.5 mile south of Knoxville. Comment
  UC10529  Erysimum capitatum Willis L. Jepson 1893-5-4 Napa trail to summit Napa River Basin, Mt. St. Helena Comment
  UCD161237  Erysimum capitatum var. capitatum Jake Ruygt 1989-4-20 2342 Napa Vaca Mountains about 1 mile north of Mt. Vaca. (Coordinates estimated by label maker at UC Davis). 804 Comment
  RSA101849  Erysimum capitatum var. capitatum G. B. Rossbach, Ruth P. Rossbach 1938-6-1 852 Napa Above Wooden Valley on side toward Napa, about 7 mi NE of Napa. 488 Comment
  CHSC102277  Erythranthe cardinalis Lowell Ahart 2009-10-12 16451 Napa Below the high water line of Lake Berryessa, along Capell Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. 133 Comment
  UCSC009037  Erythranthe nudata Dylan M. Neubauer 2015-4-26 139 Napa (NCoRI) Butts Canyon Road, .29 air-mi NW junction w/ Snell Valley Road 200 Comment
  CAS-BOT-BC501120  Erythronium californicum John Thomas Howell 1926-3-21 1715 Napa St. Helena Creek below Patten's 609 Comment
  CAS-BOT-BC133292  Erythronium helenae Ella Dales Cantelow 1938-5-1 3981 Napa N.E. slope Mt. St. Helena Comment
  JEPS129023  Erythronium helenae Jake Ruygt 2016-3-15 6162 Napa Missimer-Fernandes; E of Butts Canyon. Aetna Springs 7.5' Quad. Comment
  NY319669  Erythronium helenae E. I. Applegate 1932-4-4 7037 Napa Volcanic crater region of Mount St. Helena. Steep northerly slope just east of the Palisades on old stage road. Comment
  SD60206  Erythronium helenae Elmer I. Applegate 1932-4-4 7037 Napa Volcanic crater region of Mount St. Helena, steep northerly slope just east of the Palisades on old stage road, brushy woods. Comment
  SEINET882372 Image available Erythronium helenae Elmer I. Applegate 1932-1 7037 Napa Volcanic crater region of Mount St. Helena. Comment
  SEINET8397211  Erythronium helenae Elmer I. Applegate 1932-4-4 7037 Napa volcanic crater region of Mt. St. Helens; steep northerly slope just east of the Palisades on old stage road. Comment
  SEINET10528927  Erythronium pluriflorum James R. Shevock, Jim A. Bartel 1988-7-2 Shevock 11844 Napa Common along the north and northeast slope of Shuteye Peak on granitic rocky slopes, subalpine coniferous forest, T7S R23E, sect 2N 1/2. Chiquito Ridge, San Joaquim River drainage, Sierra National Forest. Associated with Saxifraga bryophora, Lomatatium torreyi and Sorbus californica. 8250 feet. Comment
  CAS-BOT-BC402797  Eschscholzia caespitosa John Thomas Howell 1931-4-3 6127 Napa Pope Creek Canyon, Napa Range 8 miles from Monticello Comment
  CAS-BOT-BC402803  Eschscholzia caespitosa David D. Keck 1931-4-3 1064 Napa Pope Creek canyon, 8 miles NW. of Monticello Comment
  UCR146408  Eschscholzia caespitosa Beecher Crampton 1978-4-24 9564 Napa Inner North Coast Ranges, Martley Canyon on Hwy. 128, Vaca Mountains 305 Comment
  POM182741  Eschscholzia caespitosa subsp. caespitosa D. D. Keck 1931-4-2 1043 Napa Near Cannon House, Steel Canyon, 8 miles south of Monticello, eastern Napa County Comment
  UC1285727  Eucalyptus viminalis W. L. Jepson 1936-6-29 17628 Napa near Rutherford (in front of house of Mrs. O. G. Freyermuth); Napa Valley Comment
  UC447262  Euphorbia crenulata C. F. Baker 1903-4-20 2615 Napa Mt. St. Helena Comment
  UCD73509  Euphorbia lathyris Ayzik Solomeshch 2007-5-28 s. n. Napa northwest of the city of Napa. Woolls Ranch, 1032 Mt. Veeder Road. 152 Comment
  UC2043157  Euphorbia oblongata Barbara Ertter with Jake Ruygt 1996-4-25 14605 Napa Kroeber Ranch on NE flank of Mount St. John, W of Rutherford in Napa Valley. Comment
  UCD142417  Euphorbia oblongata R. Lawley 1972-5-1 s.n. Napa Highway 29 south of Calistoga. Comment
  POM182718  Euphorbia spathulata D. D. Keck 1931-4-3 1069 Napa Pope Creek Canyon, near Walter Springs. Comment
  UCD170738  Euphorbia spathulata 2018-4-28 4 Napa Cedar Roughs Wildlife Area, to the west of Lake Berryessa, on the south side of Pope Creek and Pope Canyon Road. Along Dollarhide Road (undeveloped road/trail) on the west side of Maxwell Creek. 154 Comment
  UCD149044  Eurybia radulina Ellen Dean; S. P. Rae and T. Starbuck 2014-5-11 8189 Napa Arbuckle Winery property at 3454 Redwood Rd on the outskirts of Napa in the Mayacamas Mountains. 137 Comment
  CDA29762  Euthamia occidentalis M. K. Beyers, F. Favela, J. McDonnell 2009-8-29 220 Napa Lake Berryessa: In a moist, but drying arm of Lake Berryessa, off of Berryessa Knoxville Road, extending towards Capell Valley Road (Highway 128). 0 Comment
  CHSC102302  Euthamia occidentalis Lowell Ahart 2009-10-12 16420 Napa Below the high water line of Lake Berryessa, along Capell Creek east of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. 437 Comment
  CAS-BOT-BC459213  Euthamia occidentalis Peter H. Raven 1952-9-14 5179 Napa 2.5 mi. E of Yountville 121 Comment
  UC2026903  Euthamia occidentalis David Keil 1986-11-8 19797 Napa Along Lake Berryessa Knoxville Rd. near Knoxville 3.0 miles south of turnoff to Homestake McLaughlin Mine/Mill Comment
  HSC9846  Festuca californica C. B. Wolf 1928-5-3 1815 Napa 5 mi. N of Calistoga, on Mt. St. Helena Grade Comment
  JEPS71214  Festuca californica W. L. Jepson 1934-10-16 16895 Napa Adam-and-Eve Ridge Howell Mt. Comment
  SBBG29006  Festuca californica B. Crampton 1967-5-11 Napa 4.5 mi E of Rutherford, Conn Reservoir Comment
  UCD149596  Festuca californica Stephen P. Rae; Ayzik Solomeshch 2006-5-30 s.n. Napa On the north side of Soscol Ridge, south of the city of Napa, ca. 3/4 km east of Highway 121, on the south side of Soscol Creek. 25 Comment
  UCD19336  Festuca californica M. A. Bibbo; E. Dean 2001-7-6 28 Napa Quail Ridge Reserve. SE corner of Lake Berryessa, just W of Monticello Dam. Near point of Quail Ridge, along upper road by powerline, ca. 0.4 air miles from jct of W and E roads, on steep N facing slope. 274 Comment
  JEPS122917  Festuca idahoensis Jake Ruygt 2000-5-15 4251 Napa Henry Road, on old Henry Ranch. Quad: Napa. Comment
  SEINET9366161  Festuca idahoensis Unknown 1965-5-13 7328 Napa Napa county, S end of Chiles Valley on Hwy 128. Open serpentine slopes. Comment
  UCR146181  Festuca microstachys Beecher Crampton 1961-5-22 5878 Napa Inner North Coast Ranges, Northern end of Capell Valley, along State Highway 128, above Capell Creek 213 Comment
  CAS-BOT-BC279009  Festuca rubra Peter H. Raven 1952-5-31 4152 Napa W. of Rector Dam 182 Comment
  CAS-BOT-BC279010  Festuca rubra Peter H. Raven 1952-5-31 4144 Napa Summit of hills s.w. of Rector Canyon 304 Comment
  JEPS122940  Festuca trachyphylla Jake Ruygt 1992-5-6 2948 Napa SW of Mitten Lakes. Wild Horse Valley Ranch. Quad: Mount George. Comment
  RSA132845  Filago gallica John H. Thomas 1958-4-19 7108 Napa About 2 miles SW of Oakville. 152 Comment
  UCD161338  Filago pyramidata var. pyramidata Jake Ruygt 1983-4-17 1430 Napa Napa County : Red Hill, Mt. St. Helena. (Coordinates estimated by label maker at UC Davis). 670 Comment
  UCD18109  Frangula californica subsp. tomentella K. Carpenter; with E. Dean and K. Chaney. 2000-8-11 46 Napa Napa County. Just south of the border with McLaughlin Reserve. Along Knoxville-Berryessa Rd, ca. 1.4 road miles south of intersection with dirt road leading to old town of Knoxville, SW side of road, along drainage leading into Knoxville Creek; there is an old homestead uphill from collection site. 371 Comment
  UCD67543  Frangula californica subsp. tomentella D. Sanchez-Mata 1996-6-22 s.n. Napa Capell Valley. Serpentine chaparral in Capell Creek. 380 Comment
  CAS-BOT-BC223533  Fraxinus latifolia H. E. McMinn 1923-5-25 957 Napa Suisun Creek, between Rockville and Wooden Valley Comment
  RSA298947  Fraxinus latifolia Edward Lee 1936-3-15 1803 Napa Rutherford, Pope Valley Road, 3/4 mile out of Rutherford Comment
  UCD122055  Fraxinus latifolia Alton Enloe 1955-5-20 37 Napa Near Putah Creek bed; State Highway 128, ca. 10 miles southwest of Monticello Dam. Comment
  SEINET13943113 Image available Fraxinus latifolia Lewis S. Rose 1955-1 55190 Napa Below Conn Lake; 4 mi NE of Rutherford; ca. 200 ft alt. 61 Comment
  CAS-BOT-BC26115  Fremontia napensis Mrs. Myron Hobson 1926-5-10 s.n. Napa North side of Mt. St. Helena Comment
  CAS-BOT-BC205885  Fremontodendron californicum Margaret J. Williams; Wayne Roderick 1984-5-22 84- 13 -2 Napa Hwy 29, 0.3 mi into Lake County from Napa County 396 Comment
  CAS-BOT-BC205886  Fremontodendron californicum E. Ruckert 1960-4-3 66 Napa 6495 Dry Creek Road; on terrace 365 Comment
  RSA38445  Fremontodendron californicum Carl B. Wolf 1944-11-1 11484 Napa 0.4 miles E of Lake Co line, between Knoxville and Lower Lake. 457 Comment
  UC615155  Fremontodendron californicum B. O. Schreiber 1936-9-20 2354 Napa 5 miles south of Reiff, Napa County 762 Comment
  RSA96872  Fremontodendron californicum Percy C. Everett, E. K. Balls 1954-10-19 20370 Napa 3.9 miles NW of Knoxville on road to Lower Lake. 610 Comment
  CDA13213  Fremontodendron californicum subsp. napense G. F. Hrusa, J. M. Tucker, G. L. Webster, M. Rejmanek 1996-5-4 12914 Napa North Coast Biodiversity Arena; Summit of 'The Palisades' above Cub Valley. MonteSol Ranch. Comment
  UC504870  Fritillaria affinis R. M. Holman 1933-4-12 Napa near Mount Veeder Comment
  UC545849  Fritillaria affinis E. Crum 1936-3-15 1740 Napa Butts Canyon, Pope Valley-Middletown Road Butts Canyon; , Pope Valley-Middletown Road Comment
  UCD170218  Fritillaria pluriflora Daniel Potter; Ninh Khuu, Travis Parker 2015-3-7 739 Napa West side of Berryessa-Knoxville Road, just west of the Knoxville Wildlife Area boundary 371 Comment
  CAS-BOT-BC130487  Fritillaria purdyi Elizabeth Wright 1922-4-1 s.n. Napa Near Calistoga Comment
  JEPS113966  Fritillaria purdyi Jake Ruygt 1993-4-3 3185 Napa Little Bear Valley. Detert Reservoir 7.5' Quad. Comment
  JEPS81599  Fritillaria purdyi R. Raiche 1982-3-7 20205 Napa Junction of Snell Valley Road and Butts Canyon Road Comment
  CAS-BOT-BC508189  Fritillaria recurva E. Crum 1936-3-15 s.n. Napa Butt's Canyon, Pope Valley - Middletown Road Comment
  JEPS61953  Fritillaria recurva Mrs. Mary Van E. Ferguson 1919-4-13 Napa Atlas Mountain Comment
  UCD48158  Galium andrewsii L. Lina; E. Anderson, A. Miles, J. Waggoner, and R. Wenk 2000-4-22 12 Napa Napa County, California. McLaughlin Reserve, first ridge South of Knoxville-Berryessa Road, on Southeast side of Devilhead Road. 515 Comment
  SEINET12329996  Galium andrewsii F. H. Utech, Knight, W.; Knight, I.; Edwards, S. 1986-1 86 -315 Napa along Butts Canyon Road near junction with Snell Valley Road along Butts Creek 250 Comment
  CHSC83393  Galium andrewsii subsp. andrewsii L. P. Janeway; B. Castro 2002-5-12 7548 Napa Inner North Coast Ranges. Northeast-facing slope along Devilhead Road 0.8 km south of Berryessa-Knoxville Road and Knoxville Creek. 488 Comment
  JEPS52785  Galium andrewsii subsp. andrewsii Lauramay T. Dempster 1965-5-15 4091 Napa n slope above (s of) Knoxville; Cedar Valley 609 Comment
  UCD49239  Galium aparine S. Colby; L. Hanson, D. Bosworth, K. Sesser, and G. Belley 2001-4-14 28 Napa Quail Ridge Reserve, SE corner of Lake Berryessa, just W of Monticello Dam, along South Decker Canyon Rd., N of jct with Cut-Off Rd. 152 Comment
  UCD49241  Galium aparine Anne Mini; K. McBride, S. Snow, and K. Ehmsen 2001-4-14 3 Napa Quail Ridge Reserve, SE corner of Lake Berryessa, just W of Monticello Dam, Decker Canyon, along South Decker Canyon Rd., just N of jct with Cut-Off Rd., near dilapidated buildings. 152 Comment
  UCD49247  Galium aparine L. Wynholds; S. Du Plessis, B. Erickson, and C. Malleck 2001-4-14 8 Napa SW end of Lake Barryessa, Quail Ridge Reserve, along stream that runs along the E side of South Decker Canyon Rd. S of North Decker Canyon Rd. and N of the Cut-Off Rd. 10-20 ft. from stream. 152 Comment
  JEPS110562  Galium bolanderi Jake Ruygt 1981-5-6 1013 Napa Zim Zim Falls 390 Comment
  JEPS52706  Galium bolanderi Lauramay T. Dempster and G. L. Stebbins 1963-5-26 3780 C Napa at junction road to Angwin and road to Sanitarium; n of St. Helena Comment
  UC1196108  Galium californicum subsp. californicum Joseph P. Tracy 1899-7-3 425 Napa 3-4 mi e Angwin's (hills at head of Moore's Creek); Northern Coast Ranges, Howell Mountain 518 Comment
  UCD73512  Galium divaricatum Ayzik Solomeshch 2007-5-30 s. n. Napa northwest of the city of Napa. Woolls Ranch, 1032 Mt. Veeder Road. 152 Comment
  UCD121829  Galium nuttallii Heidi E. M. Dobson 1978-5-28 332 Napa East slope of Mt. Veeder. Comment
  UCD13187  Galium nuttallii J. R. Clark 1976-4-11 7 Napa Napa City, 4 mi N of junction of rds 121 and 128, along 128, upslope from road. Comment
  UCD159926  Galium parisiense Alice Warrick 2007-4 s.n. Napa Quail Ridge UC Reserve. 2005 Pleasure Fire burn site, along west loop road, north of Decker canyon. Q43-1. 243 Comment
  UCD121896  Galium porrigens G. F. Hrusa; G. L. Stebbins 1994-4-14 11778 Napa Butts Canyon, 4 m. N Pope Valley. Along Butts Creek. 200 Comment
  UCR225658B  Galium porrigens Ellen Dean, Stephen Rae 2008-5-21 4985 Napa Hills to the west of Hwy 29. Private property accessed by Diamond Mountain Road 197 Comment
  JEPS110616  Galium porrigens var. porrigens Jake Ruygt 2002-4-1 4377 b Napa Blue Ridge N of Mays Flat 457 Comment
  UCD18071  Galium porrigens var. porrigens Ellen Dean; with Plant Biology 102 class 2000-4-22 626 Napa Napa County. McLaughlin Reserve. First ridge south of Knoxville -- Berryessa Rd., east side of Devil Head Rd., along road to air quality station. 548 Comment
  JEPS18279  Galium porrigens var. porrigens Peter H. Raven 1957-5-5 10776 Napa just w Calistoga 182 Comment
  UCD168538  Gamochaeta ustulata Stephen P. Rae; A. Solomeshch 2007-5-13 s.n. Napa Nickel Property at 1730 Conn Valley Road north of Lake Hennessy, near end of Conn Valley Road, ca. 1/3 km east of Greenfield Road. 125 Comment
  UC1122625  Garrya congdonii B. Schreiber 1936-9-20 2353 Napa 5 mi s Reiff; Reiff Quad. 762 Comment
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  UCD170668  Garrya congdonii 2018-4-28 3 Napa Cedar Roughs Wildlife Area, to the west of Lake Berryessa, on the south side of Pope Creek and Pope Canyon Road. Along Dollarhide Road (undeveloped road/trail) on the west side of Maxwell Creek. 158 Comment
  UCD48040  Garrya congdonii R. Blenkush; S. Hee, C. McWhorter, J. Moeller 2000-4-22 10 Napa Northern Napa County, McLaughlin Reserve, first ridge south of Knoxville-Berryessa Road, on Devilhead Road. 487 Comment
  SEINET9298758  Garrya flavescens Unknown 1997-2-3 13617 Napa Serpentine margin of Lake Hennessey, across from 2nd major canyon upstream from Conn Dam ~1/2 mi. Shrub, 6 ft. Comment
  CAS-BOT-BC144378  Garrya fremontii Alice Eastwood 1922-3-26 11110 Napa Mt. St. Helena Comment
  CAS-BOT-BC144385  Garrya fremontii Willis L. Jepson 1896-2-23 s.n. Napa Near Toland House, Howell Mt. Comment
  CAS-BOT-BC144386  Garrya fremontii H. L. Mason 1925-1-22 1201 Napa Wooden Valley Grade Comment
  CAS-BOT-BC144413  Garrya fremontii C. Hart Merriam 1907-7-10 s.n. Napa Howell Mt. Comment
  CAS-BOT-BC144422  Garrya fremontii Alice Eastwood 1922-3-26 11111 Napa Mt. St. Helena Comment
  CDA38570  Garrya fremontii H. Stabo 1959-9-1 s.n. Napa E. St. Helena hills. 0 Comment
  JEPS71221  Gastridium ventricosum W. L. Jepson 1936-7-3 17633 Napa Four Corners Howell Mt.; Napa Range, Howell Mt. Comment
  UCR106835  Geranium molle Julie Knorr 1977-4-16 7 Napa Hwy 128, 6.4 mi west of Monticello Dam, steep N facing slope Comment
  JEPS120362  Gilia achilleifolia subsp. multicaulis Jake Ruygt 1995-4-29 3453 Napa Skyline Park, Sugarloaf Peak Trail. Mount George 7.5' Quad. Comment
  UC23451  Gilia capitata subsp. capitata Ferd. L. Clarke 1892-1 Napa near Yountville; near Yountville Comment
  UC932031  Gilia capitata subsp. capitata Verne Grant, Alva Grant 1946-7-7 7702 Napa wooded canyon ca 8 mi from Vichy Springs (on Monticello Road, e slope Mayacama Mountains); e slope Mayacama Mountains, ca 8 mi from Vichy Springs Comment
  UCR202432  Gilia capitata subsp. capitata Peter L. Morrell 1993-6-6 269 Napa Coast Range, Along Hwy 29, north side of road, 1 mile south of Robert Louis Stevenson State Park, c. 3 miles north of Calistoga 146 Comment
  JEPS69535  Gilia capitata subsp. capitata W. L. Jepson Nov. 1895 20941 Napa sw St. Helena (White Sulphur Spring); sw of St. Helena, White Sulphur Springs Comment
  RSA3277  Gilia tricolor D. D. Keck 1931-4-3 1103 Napa Pope Creek canyon, 7 miles NW of Monticello Comment
  UCD169876  Gilia tricolor Daniel Potter; N Khuu, C Donkers, A Yip, M Simon 2015-2-28 717 Napa Knoxville Wildlife Area. 245 Comment
  RSA304910  Gilia tricolor Jim Shevock 1971-4-8 919 Napa Hwy 29, near county line. 549 Comment
  SEINET7075538  Gilia tricolor subsp. diffusa A. G. Vestal 1955-5-8 s.n. Napa Serpentine north of Knoxville. 38? deg. 50' 11" North Latitude, -122? deg. 20' 28" West Longitude. UTM Zone 10, 557185mE, 4298615mN. (NAD 27)]. [Coordinate Datum: WGS84/NAD83]. Comment
  UCD167224  Gilia tricolor subsp. diffusa Jake Ruygt 1986-4-12 1689 Napa Devil's Canyon. 536 Comment
  JEPS110962  Gilia tricolor subsp. tricolor Jake Ruygt 1994-3-15 3321 Napa Chiles Canyon Road about 1 mile from Chiles Valley 353 Comment
  UCD167228  Gilia tricolor subsp. tricolor Jake Ruygt 1982-4-7 1170 Napa Suscol Hill west of Highway 29 (221). 24 Comment
  UCD161366  Githopsis diffusa subsp. robusta Jake Ruygt 1989-4-22 2277 Napa Napa County : About 1/2 mile south of Monticello Dam on Vaca Mountains. (Coordinates estimated by label maker at UC Davis). 432 Comment
  UCD38570  Githopsis specularioides Beecher Crampton 1956-5-25 3450 Napa Vaca Mtns., Markley Canyon. Comment
  UC796478  Githopsis specularioides Ira L. Wiggins 1949-4-30 12075 Napa about 1.5 mi ne Calistoga (along old toll road between Calistoga and Middletown) Comment
  RSA518733  Glinus lotoides Barbara Ertter, E. Neese 1988-10-2 7966 Napa Lake Hennessey about 15 air miles north-northwest of Napa, on Conn Creek in North Coast Ranges. East of boat-launching ramp on southeast edge. 91 Comment
  RSA92802  Glinus lotoides Peter H. Raven 1951-10-28 3931 Napa Strand at west end of Conn Lake. 152 Comment
  UCD18098  Gnaphalium palustre Ellen Dean; with PLB 102 class 2000-4-29 754 Napa McLaughlin Reserve, ca. 0.75 as the crow flies miles NNW of the site of the old town of Knoxville, east side of the road to Clover Valley. 499 Comment
  UCD167271  Godetia amoena var. sonomensis Jake Ruygt 1993-5-22 3267 Napa Conn Valley Road near Howell Mountain Road. 121 Comment
  JEPS110683  Gratiola ebracteata Jake Ruygt 1996-5-19 3714 Napa West of Barnett Road near Burton Creek, (Peju Pr)Pope Valley. 201 Comment
  POM204465  Gratiola ebracteata J. T. Howell 1933-5-21 11322 Napa Napa Comment
  UCD63179  Grindelia camporum Jake Ruygt 2004-6-12 4617 Napa 3/4 mile east of Blue Monday Mine. 365 Comment
  CAS-BOT-BC304893  Grindelia hirsutula L. R. Abrams 1916-7-2 5751 Napa Near St. Helena Sanitarium Comment
  CAS-BOT-BC304895  Grindelia hirsutula Alice Eastwood 1915-6-5 4628 Napa Calistoga Comment
  CAS-BOT-BC304896  Grindelia hirsutula Peter H. Raven 1951-6-24 3018 Napa Brown's Valley 91 Comment
  CAS-BOT-BC304907  Grindelia hirsutula John Thomas Howell 1933-8-27 11645 Napa East of Chiles Valley on road to Winters, Napa Range Comment
  CAS-BOT-BC314580  Grindelia hirsutula Peter H. Raven 1951-6-26 3099 Napa 4 miles N of Vallejo near Solano Co. line 30 Comment
  JEPS106918  Grindelia hirsutula Jake Ruygt 1992-9-5 3146 Napa HWY 221 south of Kennedy Drive, south-bound lane 12 Comment
  UC897090  Grindelia hirsutula Alice Eastwood 1915-6-5 4628 Napa Calistoga Comment
  UCD148103  Grindelia hirsutula Jake Ruygt 2977 Napa Yountville Ecological Reserve, Yountville Cross Rd. 28 Comment
  POM183387  Grindelia hirsutula var. davyi J. T. Howell 1930-7-13 5346 Napa Mt. St. Helena. Comment
  UC160978  Guillenia lasiophylla Joseph P. Tracy 1902-5-16 1500 1/2 Napa 3 to 4 mi e Angwin's (on hills at Head of Moores Creek); Northern Coast Ranges, Howell Mountain, Moores Creek 365 Comment
  CAS-BOT-BC302233  Harmonia nutans Alice Eastwood 1923-5-9 11753 Napa Mt. St. Helena Comment
  CAS-BOT-BC302243  Harmonia nutans David D. Keck 1931-4-4 1088 Napa The Crater Country, 3 miles SE. from summit of Mt. St. Helena. Northwestern Napa County 950 Comment
  CAS-BOT-BC302245  Harmonia nutans David D. Keck 1931-4-4 1088 Napa The Crater Country, 3 miles SE. from summit of Mt. St. Helena, northern Napa County 950 Comment
  CAS-BOT-BC302246  Harmonia nutans David D. Keck 1931-4-2 1027 Napa Wooden Valley Grade, west side of Napa Range, 5.5 miles NE. of Napa 200 Comment
  JEPS7511  Harmonia nutans R. F. Hoover 1941-4-27 4944 Napa near Yountville Comment
  UC1746026  Harmonia nutans Annetta M. Carter, Joseph Tracy, Rimo Bacigalupi 1950-5-23 2769 Napa Howell Mtn. La Jota Plateau - Las Posadas State Forest. 533 Comment
  UC761806  Harmonia nutans R. F. Hoover 1941-4-27 4944 Napa rocky hill near Yountville Comment
  UC894091  Harmonia nutans Alice Eastwood 1916-6-6 4664 Napa Mt. St. Helena Comment
  UC913106  Harmonia nutans J. Clausen 1935-5-23 1072 Napa 6.5 mi ne St. Helena (near summit); Howell Mountain Comment
  RSA769211  Helenium puberulum L. Ahart 2009-10-12 16423 Napa Below the high water line of Lake Berryessa, along Capell Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road,, about 19 air miles west of Winters. 133 Comment
  UC1949214  Helenium puberulum Barbara Ertter with Elizabeth Neese 1988-10-2 7955 Napa Lake Hennessey ca 15 airmiles NNW of Napa, on Conn Creek in North Coast Ranges, below spillway on N side of Rt 128 Comment
  UC1199264  Helianthella californica subsp. californica Joseph P. Tracy 1933-6-2 12486 Napa on hills at head Moore's Creek (3-4 mi e of Angwin's); Northern Coast Ranges, Howell Mountain 396 Comment
  CAS-BOT-BC314719  Helianthella californica var. californica Paul F. Covel 1940-4-28 1703 Napa Grade near Sanatarium Comment
  CDA13716  Helianthus bolanderi G. F. Hrusa, T. D. Wilfred 1997-7-24 14020 Napa North Coast Biodiversity Arena; Middle reaches of Butts Canyon +- 8-10 mi. SE of Middletown. Comment
  UCD159470  Helianthus bolanderi D. S. Park 2010-8-13 224 Napa Along Berryessa Knoxville Rd. In dried up creek bed. 234 Comment
  UCD18115  Helianthus bolanderi K. Carpenter; with E. Dean and K. Chaney. 2000-8-11 51 Napa Napa County. Just south of the border with McLaughlin Reserve. Along Knoxville-Berryessa Rd, ca. 1.4 road miles south of intersection with dirt road leading to old town of Knoxville, SW side of road, along drainage leading into Knoxville Creek; there is an old homestead uphill from collection site. 371 Comment
  SBBG127190  Helianthus bolanderi D. Keil 1986-11-8 19789 Napa Lake Berryessa Knoxville Rd near Knoxville; 2.3 mi S of turnoff to Homestake McLaughlin Mine/Mill 350 Comment
  SEINET3930499  Helianthus bracteatus David Keil 1986-11-8 19789 Napa Along Lake Berryessa Knoxville Road, near Knoxville. 2.3 miles south of turnoff to Homestake McLaughlin Mine/Mill.; 0 350 Comment
  CHSC102268  Helianthus cusickii Lowell Ahart 2009-10-12 16424 Napa Below the high water line of Lake Berryessa, along Capell Creek east of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. 133 Comment
  JEPS106666  Helianthus gracilentus Jake Ruygt 1981-6-10 1050 Napa west of Mt. Vaca, down ridge 472 Comment
  CDA34656  Heliotropium europaeum L. Ahart 2009-10-12 16433 Napa Below the high water line of Lake Berryessa, along Capell Creek east of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. Comment
  CHSC102262  Helminthotheca echioides Lowell Ahart 2009-10-27 16481 Napa Below the high water line of Lake Berryessa, about 100 yards east of Eticuera Creek, about 50 yards south of Eticuera Parking Area at the northeast end of the causeway, on the south side of Berryessa Knoxville Road, about 20 miles (air) northwest of Winters. 130 Comment
  CAS-BOT-BC306151  Hemizonia congesta subsp. clevelandii Kate Eastwood Phelps 1930-7-1 s.n. Napa Sanitarium, Napa Valley Comment
  CAS-BOT-BC306175  Hemizonia congesta subsp. congesta W. M. Heusi 1930-10-18 105 Napa About 5 miles w. of Cordelia, in waste field along highway to Napa Comment
  UC1223090  Hemizonia congesta subsp. luzulifolia Joseph P. Tracy 1950-8-12 19303 Napa Conn Valley Comment
  UC222698  Hemizonia congesta subsp. luzulifolia H. M. Hall 1923-10-14 11942 Napa 8 mi w Pope Valley Comment
  UCD18104  Hemizonia congesta subsp. luzulifolia K. Carpenter; with E. Dean and K. Chaney. 2000-8-11 40 Napa Napa County. Just south of the border with McLaughlin Reserve. Along Knoxville-Berryessa Rd, ca. 1.4 road miles south of intersection with dirt road leading to old town of Knoxville, SW side of road, along drainage leading into Knoxville Creek; there is an old homestead uphill from collection site. 371 Comment
  UCD67774  Hemizonia congesta subsp. luzulifolia D. Sanchez-Mata; P. Rodriguez-Rojo 1996-10-19 s.n. Napa MacLaughlin UC Natural Reserve. 680 Comment
  UCD161743  Hemizonia congesta subsp. luzulifolia Jake Ruygt 1993-8-14 3286 Napa Lewelling Ranch, west of end Lewelling Lane. 79 Comment
  CDA7810  Hemizonia parryi A. Delfino 1960-10-4 Napa Tamagni Dairy, Calistoga. 0 Comment
  JEPS122710  Hesperevax sparsiflora var. sparsiflora Jake Ruygt 1979-4-30 567 Napa Southeast corner of Napa County, east of Highway 80. Quad: Cordelia. Comment
  JEPS33794  Hesperevax sparsiflora var. sparsiflora Willis L. Jepson 1893-4-24 Napa hills e St. Helena (to Conn Valley) Comment
  JEPS126105  Hesperocyparis macnabiana Jake Ruygt 1979-2-25 437 Napa Oat Hill Mine Road near Bateman Creek. Detert Reservoir 7.5' Qua. Comment
  OBI7234  Hesperocyparis sargentii Carl B. Wolf & E. R. Johnson, E. R. Johnson 1934-10-17 6196 Napa On Middletown-Calistoga rd, 300 ft S of Lake Co Line 457 Comment
  SFV12215  Hesperocyparis sargentii E. L. Smith 1967-5-7 Napa Butts Canyon Butts Creek, below small reservoir at upper (northwest) end of canyon where road from Pope Valley enters, Butts Canyon, 6.9 miles northwest of Pope Valley._x000B_Soil shallow cherts and serpentine. 213 Comment
  UCD169786  Hesperocyparis sargentii Daniel Potter; Ninh Khuu, Max Potter, James Shoulders 2015-8-18 794 Napa Knoxville Wildlife Area. Upper Zim Zim Creek drainage. 444 Comment
  UC1736420  Hesperolinon Dean W. Taylor 1998-6-18 16669 Napa Butts Canyon, small side canyon 0.5 mi above (north of) mouth into Pope Valley 289 Comment
  CAS-BOT-BC167405  Hesperolinon bicarpellatum Mrs. K. Brandegee 1911-6-29 s.n. Napa Butts [Canon] Canyon, near Aetna Springs Comment
  JEPS122853  Hesperolinon bicarpellatum Adam C. Schneider with Dick O'Donnell 2013-5-26 232 Napa North side of Butts Road, 3/4 miles southeast of Lake/Napa county line. Comment
  UC1212350  Hesperolinon bicarpellatum Helen K. Sharsmith 1951-10-21 4035 Napa 7.2 mi sw Monticello; Inner North Coast Ranges, Steel Canyon Comment
  UC762266  Hesperolinon bicarpellatum R. F. Hoover 1938-6-8 3539 Napa canyon of s. fork of Butts Creek s. fork of Butts Creek Comment
  UCD167347  Hesperolinon bicarpellatum Jake Ruygt 2009-5-16 5406 Napa Aetna Springs Road about 1/2 mile east of Aetna Springs resort. 301 Comment
  UC1212445  Hesperolinon californicum Freed W. Hoffman 1947-6-18 1650 Napa Pope Valley Road Inner North Coast Ranges Comment
  UC1212455  Hesperolinon californicum Helen K. Sharsmith 1957-6-18 4604 Napa head Pope Creek Canyon (where stream leaves Pope Valley); Inner North Coast Ranges 243 Comment
  UC1212521  Hesperolinon californicum Helen K. Sharsmith 1958-10-16 4618 Napa head Pope Creek Canyon (where stream leaves Pope Valley); Inner North Coast Ranges 243 Comment
  UCD110500  Hesperolinon californicum Helen K. Sharsmith 1952-5-31 4110 Napa Above Sage Creek on west side Chiles Valley. 304 Comment
  CAS-BOT-BC176017  Hesperolinon californicum Lester Rowntree 1937-6-1 s.n. Napa Saca Canyon Comment
  JEPS32281  Hesperolinon californicum Jos. P. Tracy 1899-6-19 384 Napa hill beyond flat Howell Mt. Comment
  UCD110495  Hesperolinon californicum Robert E. Preston 1987-6-21 571 Napa ca. 1 1/4 mi se of Devil's Head Peak. 274 Comment
  UCD167294  Hesperolinon californicum Jake Ruygt 2007-5-19 5190 Napa Las Posadas State Forest, ridge between Moore Creek and Uncle John Creek. 414 Comment
  CAS-BOT-BC176058  Hesperolinon clevelandii Peter H. Raven 1950-6-20 2387 Napa Howell Mtn., on NNE side road to Pope Valley Comment
  JEPS122782  Hesperolinon clevelandii Jake Ruygt 1997-5-18 3856 Napa Hogback Mountain. QUAD: Sonoma. Comment
  JEPS122799  Hesperolinon clevelandii Jake Ruygt 2007-5-17 5179 Napa Duff Ranch, NE of High Point. QUAD: Calistoga. Comment
  POM180782  Hesperolinon clevelandii J. T. Howell 1930-7-13 5359 Napa On the edge of the Crater Country Comment
  RSA262583  Hesperolinon clevelandii Kathleen Barnes 1973-6-4 61 Napa McDonald Ranch, 1/2 mile up from house, Pope Valley Road. Comment
  UC517479  Hesperolinon clevelandii John Thomas Howell 1933-6-4 11388 Napa hills e Napa Comment
  RSA151793  Hesperolinon disjunctum H. K. Sharsmith 1952-6-1 4118 Napa About one mile east of spur road to Samuels Springs, south-facing slope above Pope Creek, Pope Valley-Monticello road. 122 Comment
  UCD149658  Hesperolinon disjunctum Ayzik Solomeshch 2008-4-20 s.n. Napa North side of Pope Canyon Road, ca. 2 km west of intersection with Berryessa-Knoxville Road 140 Comment
  SD51662  Hesperolinon disjunctum Helen K. Sharsmith 1952-6-20 4148 Napa Directly east of Knoxville. 395 Comment
  UCD167298  Hesperolinon disjunctum Jake Ruygt 2004-5-8 4596 Napa Lone Pine Thicket on private road accessible from Devilhead Road. 633 Comment
  CAS-BOT-BC167456  Hesperolinon drymarioides G. L. Stebbins 1966-6-6 6447 Napa Along road from Knoxville to Cedar Valley 487 Comment
  JEPS122779  Hesperolinon drymarioides Jake Ruygt 1998-7-11 4089 Napa Devilhead Road about 1/2 mile south of ranch. QUAD: Knoxville. Comment
  JEPS112653  Hesperolinon micranthum Jake Ruygt 1995-6-17 3504 Napa Butts Canyon Road at Snell Valley Road; to SE. 487 Comment
  RSA653987  Hesperolinon micranthum Beecher Crampton 1956-5-25 3452 Napa Vaca Mountains, Martley Canyon, along new road from Monticello Dam to Napa Comment
  UC1601270  Hesperolinon micranthum Helen K. Sharsmith 1958-10-16 4616 Napa Rutherford-Monticello road Inner North Coast Ranges, Chiles Valley (w side of valley) 243 Comment
  UCD37129  Hesperolinon micranthum Beecher Crampton 1957-6-4 4103 Napa Napa County, north end of Capell Valley, above Capell Creek. Comment
  UC1212410  Hesperolinon micranthum Helen K. Sharsmith 1957-5-30 4592 Napa 2.2 mi beyond jct Wooden Valley road (on road between Wooden Valley and Cappell Valley, Highway 37); Inner North Coast Ranges 259 Comment
  UC1601208  Hesperolinon micranthum Helen K. Sharsmith 1958-10-16 4615 b Napa s side above road Conn Cam; Inner North Coast Ranges 121 Comment
  JEPS122787  Hesperolinon sharsmithiae Jake Ruygt 2009-6-18 5438 Napa Sage Canyon, about 1/2 mile south of Nichelini Winery. QUAD: Yountville. Comment
  JEPS122788  Hesperolinon sharsmithiae Jake Ruygt 2009-6-18 5439 Napa Chiles-Pope Valley Road. QUAD: Chiles Valley. Comment
  JEPS122841  Hesperolinon spergulinum W. A. Freyman with A. C. Schneider & Y. P. Springer 2014-5-17 221 Napa Along private road that runs west off of Pope Valley Road. Comment
  JEPS32293  Hesperolinon spergulinum W. L. Jepson 1916-8-6 6828 Napa Howell Mt. Comment
  UC1601204  Hesperolinon spergulinum Helen K. Sharsmith 1951-10-21 4042 Napa 0.5 mi above Aetna Springs (near Aetna Mine); Inner North Coast Ranges 274 Comment
  UC703179  Hesperolinon spergulinum John Thomas Howell 1941-6-21 16316 Napa hills sw St. Helena Comment
  UC1212390  Hesperolinon spergulinum Helen K. Sharsmith 1952-6-19 4134 Napa ca 1 mi s Napa-Lake County line (State Highway 28, w base Mount St. Helena); Inner North Coast Ranges, Mount St. Helena 548 Comment
  UC168967  Heterocodon rariflorum Joseph P. Tracy 1905-7-6 2226 Napa 3-4 mi e Angwin's (on hills at head of Moore's Creek); Northern Coast Ranges, Howell Mountain, Moore's Creek 365 Comment
  UCD113325  Heteromeles arbutifolia P. J. Plummer 1995-6-5 s.n. Napa Highway 128. 73 Comment
  CAS-BOT-BC424163  Heuchera micrantha var. erubescens Alice Eastwood 1915-6-5 4577 Napa Petrified Forest Comment
  UC11351  Heuchera micrantha var. erubescens Willis L. Jepson 1893-5-8 Napa Howell Mt; Napa River Basin Comment
  CAS-BOT-BC312334  Hieracium albiflorum Peter H. Raven 1964-5-9 19058 Napa 2 miles west of Aetna Springs Comment
  JEPS107198 Image available Hoita macrostachya Jake Ruygt 1978-7-5 380 Napa 8.9 miles NE of Monticello Rd. on Atlas Peak Road 554 Comment
  CAS-BOT-BC280701  Holcus lanatus Betty H. Johnson 1958-6-20 672 Napa About 1/2 mile above Mt. Mill House, 6.4 miles SW of Middletown Comment
  CAS-BOT-BC324651  Holocarpha virgata John Thomas Howell 1933-8-27 11644 Napa EAst of Chiles Valley on road to Winters, Napa Range Comment
  UCD32908  Holodiscus discolor Beecher Crampton 1965-6-17 7424 Napa Napa county line, Vaca mountains, ridge of Mt. Vaca. 859 Comment
  CAS-BOT-BC315787  Holozonia filipes K. Brandegee 1910-7-26 186 Napa Near Angwin's Comment
  JEPS76119  Hordeum brachyantherum subsp. brachyantherum W. L. Jepson 1938-6-8 18893 Napa South Fork Butts Creek , Butts Canyon (Butts Canyon) Comment
  UC1023500  Hordeum brachyantherum subsp. californicum Peter H. Raven 1951-6-10 2927 Napa E of Palisades (Crater Region) 762 Comment
  UCD37944  Hordeum brachyantherum subsp. californicum Beecher Crampton 1962-5-16 6424 Napa 6.4 miles S of Pope Valley, western slope of Chiles Valley. Comment
  CAS-BOT-BC285097  Hordeum marinum subsp. gussoneanum Peter H. Raven 1957-5-5 10738 Napa Calistoga 91 Comment
  UCD20430  Hordeum murinum E. Dean; w/ PLB 102 class 2002-5-4 1018 Napa Quail Ridge UC Reserve, SE corner of Lake Berryessa, just west of Monticello Dam. Near tip of peninsula, N of powerlines. 259 Comment
  UC73773  Hordeum murinum subsp. leporinum J. Burtt Davy Apr. 1902 Napa St. Helena Comment
  UCD168567  Hordeum murinum subsp. leporinum Stephen P. Rae; A. Solomeshch 2007-3-17 s.n. Napa Nickel Property at 1730 Conn Valley Road north of Lake Hennessy, near end of Conn Valley Road, ca. 1/3 km east of Greenfield Road. 125 Comment
  JEPS104554  Hydrocotyle ranunculoides Jake Ruygt 1991-7-20 2772 Napa L.Orville, Friesen's Lakes, Angwin 563 Comment
  UC127182  Hypericum anagalloides Harley P. Chandler Sep 7 1906-Sep 14 1906 7104 Napa Alta Loma Ranch 487 Comment
  CAS-BOT-BC410801  Hypericum concinnum H. E. McMinn 1922-6-8 168 Napa Mt Howell Summit Comment
  JEPS126061  Iris longipetala Jake Ruygt 2009-5-22 5411 Napa American Canyon, across road from quarry. Cordelia 7.5' Quad. Comment
  JEPS17332  Iris macrosiphon W. L. Jepson 1900-3-10 516 Napa Howell Mt. Comment
  UCD48249  Iris macrosiphon K. Watts; K. Carpenter, S. Cruz, D. Goldberg, and M. Ochoa 2000-4-28 5 Napa Napa County, McLaughlin Reserve, first ridge south of Knoxville Rd., along Devilhead Rd., west side of rd., south of path. 545 Comment
  UCR156588  Iris macrosiphon A. French 1967-5-7 36 Napa Coast Range, Oakville to Santa Rosa Rd, approx 7 mi from Oakville 457 Comment
  JEPS116562  Isoetes howellii Jake Ruygt 2005-4-30 4801 Napa Big Ranch Road at El Centro Ave. Napa 7.5' Quad. Comment
  UC1746157  Isoetes nuttallii Annetta M. Carter, Joseph Tracy, Rimo Bacigalupi 1950-5-23 2760 Napa Howell Mtn. La Jota Plateau - Las Posadas State Forest. 533 Comment
  JEPS121362  Isolepis carinata Jake Ruygt 1986-6-21 1837 Napa Fagans Marsh Comment
  UC32952  Jaumea carnosa Willis L. Jepson 1896-11-4 Napa below Napa City Comment
  CAS-BOT-BC102318  Juglans hindsii Carl B. Wolf 1930-11-3 1801 Napa On the Munson Ranch, Napa Range, above Wooden Valley 304 Comment
  POM212010  Juglans hindsii Carl B. Wolf 1930-11-3 1801 Napa On Munson Ranch, Napa Range above Wooden Valley. 305 Comment
  UC1601694  Juncus bufonius Ferd. L. Clarke 1892-1 Napa near Yountville Comment
  UCD73514  Juncus bufonius Ayzik Solomeshch 2007-5-30 s. n. Napa northwest of the city of Napa. Woolls Ranch, 1032 Mt. Veeder Road. 152 Comment
  JEPS126040  Juncus dubius Jake Ruygt 1992-3-18 2974 Napa Yountville Ecological Reserve, Yountville Cross Road. Yountville 7.5' Quad. Comment
  JEPS122657  Juncus effusus subsp. pacificus Jake Ruygt 1985-5-25 1601 Napa American Canyon, 0.4 mile east of Flosden Road. Quad: Cordelia. Comment
  CHSC102292  Juncus ensifolius Lowell Ahart 2009-10-12 16641 Napa Below the high water line of Lake Berryessa, along Capelll Creek east of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. 133 Comment
  JEPS126039  Juncus hemiendytus var. hemiendytus Jake Ruygt 1990-4-21 2493 Napa Mead Ranch, Atlas Peak Road. Yountville 7.5' Quad. Comment
  UC14892  Juncus hemiendytus var. hemiendytus J. P. Tracy 1902-5-19 1555 1/2 Napa 3-4 mi e Angwin's (Head of Moores Creek); Howell Mountain, Head of Moores Creek 518 Comment
  JEPS75647  Juncus occidentalis W. L. Jepson 1936-6-1 17579 Napa w side Four Corners; Napa Range, Howell Mt. Comment
  UC184101  Juncus occidentalis Joseph P. Tracy 1905-7-5 2211 Napa 3-4 mi e Angwin's (at head of Moores Creek); Northern Coast Ranges, Howell Mountain, Moores Creek 365 Comment
  UC842740  Juncus occidentalis M. S. Jussel 1937-5-23 Napa Mt. St. Helena Comment
  JEPS122658  Juncus oxymeris Jake Ruygt 1991-6-29 2739 Napa Friesen Drive about 0.2 mile south of Lake Henne. Quad: St. Helena. Comment
  UC1103058  Juncus oxymeris Joseph P. Tracy 1899-6-11 351 Napa 3-4 mi e Angwin's; Northern Coast Ranges, Howell Mountain, Head of Moores Creek 365 Comment
  UCD167045  Juncus phaeocephalus var. phaeocephalus Jake Ruygt 1998-5-25 3998 b Napa Napa River Ecological Reserve, Yountville. 27 Comment
  RSA293538  Juncus xiphioides C. W. Tilforth, John Dourley 1979-7-22 1857 Napa 0.4 miles south of Park Headquarters, west side of Lake Berryesa. 137 Comment
  NY790364  Keckiella lemmonii R. C. F. Bacigalupi 1928-6-20 1873 Napa Howell Mountain, 10 miles west of St. Helena Comment
  CDA6289  Kickxia elatine A. Delfino 1963-6-7 Napa G. W. Elicker property, 2297 1st Avenue, Napa. 0 Comment
  CHSC102284  Kickxia elatine Lowell Ahart 2009-10-12 16450 Napa Below the high water line of Lake Berryessa, along Capelll Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. 133 Comment
  JEPS11337  Kickxia elatine W. L. Jepson 1930-10-19 15684 Napa mouth of Sage Canyon (in Conn Creek bed); Napa Valley, Conn Creek 45 Comment
  JEPS115771  Kickxia elatine Lowell Ahart 2009-10-12 16450 Napa Below the high water line of Lake Berryessa, along Capelll Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west 133 Comment
  UC1552004  Kickxia elatine Aaron Liston and Sara Meury 1987-6-6 676 -1 Napa Bothe-Napa Valley State Park 150 Comment
  UCD123886  Kickxia elatine Herbert L. Mason 1942-9-29 12557 Napa 2 miles north of Calistoga, Napa River. Comment
  JEPS122912  Koeleria macrantha Jake Ruygt 2000-5-15 4250 Napa Henry Road, on old Henry Ranch. Quad: Napa. Comment
  JEPS76077  Koeleria macrantha W. L. Jepson 1938-5-18 18789 Napa behind St. Helena Sanitarium Howell Mountain; , behind St. Helena Sanitarium Comment
  JEPS76081  Koeleria macrantha W. L. Jepson 1938-5-20 18808 Napa above St. Helena Sanitarium Howell Mountain (above vineyard of John Ballentine); , above St. Helena Sanitarium Comment
  UCD170427  Koeleria macrantha Daniel Potter; A Holland, D McNair, H Won, K Battenberg 2016-4-17 902 Napa Knoxville Wildlife Area, upper Zim Zim Creek drainage east of Knoxville-Devilhead Road. 420 Comment
  RSA0104501  Kopsiopsis strobilacea Carl B. Wolf 1928-5-4 1855 Napa Upper slopes of Mt. St. Helena. Comment
  JEPS115849  Lactuca saligna Lowell Ahart 2009-10-12 16425 Napa Below the high water line of Lake Berryessa, along Capell Creek east of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile soutwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winter 133 Comment
  JEPS19965  Lagophylla minor Joseph P. Tracy 1938-6-5 15825 Napa 5 mi e Angwin's (on hills at head of Moore's Creek); Howell Mountain, Moore's Creek 365 Comment
  JEPS89774  Lagophylla minor Dean Wm. Taylor with Glenn L. Clifton 1990-5-25 10803 Napa Butts Canyon Road near junction with Snell Road (North Coast Ranges); , Butts Canyon Road 204 Comment
  UC1199151  Lagophylla minor Joseph P. Tracy 1933-6-2 12481 Napa on hills at head Moore's Creek (5 mi e of Angwin's); Howell Mountain Comment
  UC175976  Lagophylla minor J. P. Tracy 1902-5-15 1474 Napa head Moore's Creek (3-4 mi e of Angwin's); Howell Mountain 365 Comment
  UCD135655  Lagophylla minor Bruce G. Baldwin 1988-5-29 706 Napa immediately beyond junction with State Highway 128 along north side of Lower Chiles Valley Road. Comment
  CAS-BOT-BC341417  Lagophylla minor J. Clausen 1935-5-22 1069 Napa 1 mile east of Chiles Valley Store Comment
  UC913121  Lagophylla minor David D. Keck 1933-5-29 2338 Napa Bridge over Pope Creek just s Walters Spring; ; bridge over Pope Creek, S of Walters Spring, Napa Co. Comment
  UC33058  Lagophylla ramosissima Willis L. Jepson 1894-5-1 Napa e St. Helena; Napa River basin Comment
  JEPS85022  Lamarckia aurea Larry Heckard, Mary Ashton 1969-5-3 2220 Napa 7 mi ne of Napa (Mead Ranch of the Atlas Peak Road); Mead Ranch 510 Comment
  JEPS110795  Lamium amplexicaule Jake Ruygt 1977-3-1 133 Napa .3 miles north of Oak Knoll Ave. on Big Ranch Rd. 21 Comment
  RSA3634  Lamium amplexicaule I. L. Wiggins 1932-2-12 5749 Napa Growing in orchard 1 mi. N. of town, Calistoga. Comment
  CAS-BOT-BC338270  Lasthenia californica Alice Eastwood 1915-6-5 4631 Napa Calistoga Comment
  CAS-BOT-BC338274  Lasthenia californica Peter H. Raven 1957-5-5 10739 Napa Calistoga 91 Comment
  JEPS106676  Lasthenia californica Jake Ruygt 1976-5-6 57 Napa 2.8 miles northeast of Westgate Dr. on Atlas Peak rd. 350 Comment
  CAS-BOT-BC338268  Lasthenia californica John Thomas Howell 1926-3-27 1749 Napa Soscol Comment
  UCD148782  Lasthenia californica subsp. californica Ellen Dean; Diana Hickson 2014-4-29 8090 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 603 Comment
  SD70553  Lasthenia conjugens Robert Ornduff 1960-4-26 6116 Napa East side of Silverado Trail, 0.9 mile north of Soda Canyon road. Comment
  UC1363760  Lasthenia conjugens Robert Ornduff 1960-4-26 6116 Napa 0.9 mi n of Soda Canyon Rd.; Silverado Trail Comment
  RSA0008549  Lasthenia conjugens Robert Ornduff 1960-4-26 6116 Napa East side of Silverado Trail, 0.9 mile north of Soda Canyon Road. Comment
  JEPS122747  Lasthenia glaberrima Jake Ruygt 2011-5-7 5774 Napa Pope Valley, Pope Canyon Road at vernal marsh. Quad: St. Helena. Comment
  JEPS35411  Lasthenia glabrata subsp. glabrata W. L. Jepson 1915-4-23 6260 Napa Conn Valley Comment
  UCD118396  Lasthenia gracilis Rachael Olliff; Plant Biology 102 Collectors 2012-5-5 4 Napa Las Posadas State Experimental Forest. Northeastern part of property, uphill and north of Recreation Flat, along undeveloped road. 406 Comment
  UCD167170  Lathyrus aphaca Jake Ruygt 2015-4-24 6080 Napa Sutro Ranch, east side of Atlas Peak. 712 Comment
  UCD168534  Lathyrus hirsutus Stephen P. Rae; A. Solomeshch 2007-5-13 s.n. Napa Nickel Property at 1730 Conn Valley Road north of Lake Hennessy, near end of Conn Valley Road, ca. 1/3 km east of Greenfield Road. 125 Comment
  CAS-BOT-BC213497  Lathyrus jepsonii subsp. californicus Peter H. Raven 1952-5-29 4092 Napa Napa River 1 mi. N Napa 60 Comment
  JEPS107270  Lathyrus jepsonii subsp. californicus Jake Ruygt 1991-7-19 2767 Napa south of the end of South Jefferson St. along river bank 1 Comment
  UCD106330  Lathyrus jepsonii var. californicus J. Watsonii 1941-5-1 s.n. Napa Monticello - Napa Road. Comment
  SJSU10857  Lathyrus jepsonii var. jepsonii W. Savage 1983-6-6 1593 B Napa NE facing bank of S Slough, Cullinan Ranch Comment
  UC81786  Lathyrus jepsonii var. jepsonii Michener and Bioletti 1892-8-15 Napa Draw Bridge Napa River Comment
  UCD81832  Lathyrus sphaericus Ellen Dean 2009-4-24 5462 Napa Property at 600 Petrified Forest Road. 170 Comment
  POM128965  Lathyrus sulphureus H. P. Chandler 1907-5-14 7578 Napa White Sulphur Spring, St. Helena. Comment
  UCD106481  Lathyrus vestitus Paul C. Hutchinson 1963-3-3 2673 Napa 2 miles above the St. Helena Sanitarium along the road to Pope Valley. Comment
  JEPS107265  Lathyrus vestitus var. vestitus Jake Ruygt 1991-6-1 2708 Napa north of Campbell Flat, Mt. St. John 463 Comment
  JEPS55384  Lathyrus vestitus var. vestitus W. L. Jepson 1924-4-6 10316 Napa Howell Mt. Napa Range 914 Comment
  UCD121193  Lathyrus vestitus var. vestitus Ellen Dean; G. Golden, C. Loughran, PLB 102 interns 2012-5-5 7364 a Napa East of Las Posadas Rd. California Dept. of Forestry's Las Posadas State Experimental Forest, east of the town of Angwin. Along undeveloped road that runs between the Fire Station and Recreation Flat. 526 Comment
  UC15381  Lathyrus vestitus var. vestitus unknown 1895-4-24 Napa e of St. Helena Comment
  UCD75717  Lathyrus vestitus var. vestitus Jake Ruygt 1986-4-14 1698 Napa 4.5 miles north of Westgate Dr. on Atlas Peak Road. 457 Comment
  UC924241  Layia chrysanthemoides H. S. Reed 1939-4-16 225 Napa Napa Valley 60 Comment
  CAS-BOT-BC323198  Layia chrysanthemoides J. Clausen 1935-5-22 1068 Napa 2.2 mi. S of Knoxville Comment
  HSC5916  Layia chrysanthemoides Greg Bos 1963-3-30 59 Napa 3 mi. S of Middleton on Butte Canyon Rd. Comment
  RSA261531  Layia chrysanthemoides Gilbert Muth 1971-4-10 1393 Napa Snell Valley, W side of extreme NW arm-tip of Lake Berryessa, northern Napa County. 152 Comment
  UC169317  Layia chrysanthemoides Joseph P. Tracy 1902-5-26 1635 Napa near Calistoga; Northern Coast Ranges, Napa Valley 243 Comment
  UCD161753  Layia chrysanthemoides Jake Ruygt 1996-4-20 3619 Napa Jameson Vineyards, Jameson Canyon. 57 Comment
  CAS-BOT-BC321717  Layia gaillardioides David D. Keck 1933-5-29 2373 Napa 1.3 miles S of Knoxville Comment
  SBBG8517  Layia gaillardioides H. and M. Dearing 1939-4-28 3220 Napa near Fairfax Comment
  UCD63159  Layia septentrionalis Jake Ruygt 1980-4-13 834 Napa North of Snell Valley over ridge. 256 Comment
  CAS-BOT-BC534369  Lemna minor Peter H. Raven 1951-6-26 3042 Napa Sarco Creek east of Napa 60 Comment
  JEPS129088  Leontodon saxatilis subsp. longirostris Jake Ruygt 2016-4-19 6197 Napa Wantrup Wildlife Sanctuary, Hardin Road. Chiles Valley 7.5' Quad. Comment
  CAS-BOT-BC215769  Lepechinia calycina W. L. Jepson 1891-6-1 s.n. Napa In the Vaca Mts. Comment
  UC1124476  Lepechinia calycina A. Lewis 1932-5-19 102 Napa Sarco Creek 182 Comment
  UCD124950  Lepechinia calycina M. Ensign 1943-5-28 317 Napa 13 miles from Monticello on road to Lower Lake. Comment
  UCD49101  Lepechinia calycina S. Murphy; K. Keck and K. Dyer 2002-5-5 15 Napa Quail Ridge UC Reserve, northern tip of ridge, ca. 450 m from intersection of West and East roads, S side of upper road leading to power lines and tip parcels, 2 m from roadside. 388 Comment
  CAS-BOT-BC89173  Lepidium draba John Thomas Howell 1926-4-3 1781 Napa Near Yountville. Comment
  CAS-BOT-BC89767  Lepidium latipes Alice Eastwood; John Thomas Howell 1938-5-15 5521 Napa Myrtledale Hot Springs. Comment
  JEPS106788  Lepidium latipes var. latipes Jake Ruygt 1981-4-18 981 Napa Harris Canyon 365 Comment
  JEPS106832  Lepidium strictum Jake Ruygt 1982-3-17 1131 Napa Suscol plain along HWY 29 (221) 8 Comment
  UCD164745  Lepidium strictum Jake Ruygt 2014-6-7 5980 Napa Livermore Ranch, Montesol. 735 Comment
  CAS-BOT-BC226537  Leptosiphon acicularis Peter H. Raven 1953-5-2 5385 Napa Hills due e. of Yountville 243 Comment
  SEINET14160510  Leptosiphon androsaceus M. J. Williams 1967-5-7 s. n. Napa Howell Mountain, between St. Helena and Angwin 259 Comment
  UCD118585  Leptosiphon androsaceus Alan P. Godlewskie 1974-5-3 15 Napa west of Lake Berryessa, approximately 75 yards from Highway 128. Comment
  UCD170446  Leptosiphon ciliatus Daniel Potter; Ninh Khuu 2017-5-14 918 Napa Knoxville Wildlife Area, west of and above Nevada Creek. 482 Comment
  UCD167232  Leptosiphon ciliatus Jake Ruygt 2000-5-6 4239 Napa Jericho Canyon, Lawley Toll Road. 320 Comment
  JEPS129094  Leptosiphon latisectus Jake Ruygt 2016-4-26 6209 Napa Amy's Grove, Dry Creek Road. Rutherford 7.5' Quad. Comment
  RSA0081010  Leptosiphon parviflorus G. F. Hrusa, S. Larson 1995-4-10 12059 Napa Approx. 1 m. below bridge over Pope Creek, on Pope Canyon Rd. 175 Comment
  UCD118108  Leptosiphon parviflorus Megan Mateo; Plant Biology 102 Collectors 2012-4-29 4 Napa Las Posadas State Experimental Forest. Just northeast of fire station along undeveloped road. Northwest side of road near fork in road. 519 Comment
  UCD49235  Leptosiphon parviflorus S. Murphy; K. Keck and K. Dyer 2002-5-5 1 Napa Quail Ridge UC Reserve, northern tip of ridge, near junction of West and East roads, 15 m from S edge of stock pond. 328 Comment
  CAS-BOT-BC324163  Lessingia hololeuca Edward Lee Greene 1881-10-1 s.n. Napa Napa Valley Comment
  CAS-BOT-BC324165  Lessingia hololeuca Milo S. Baker 1933-9-9 7536 Napa Near Calistoga Geysers Comment
  CAS-BOT-BC324166  Lessingia hololeuca John Thomas Howell 1927-4-15 2323 Napa Near Callistoga 213 Comment
  JEPS106605  Lessingia hololeuca Jake Ruygt 1992-8-3 3115 Napa east of Spencer Creek near Solano County line 313 Comment
  UCD69064  Lessingia nemaclada P. Rodriguez-Rojo 1997-5-31 Napa Butts Canyon Rd. 285 Comment
  UC1925924  Lessingia ramulosa Ethel Crum Oct 1930 915 Napa Pope Valley. Comment
  UC570411  Lessingia ramulosa Chas. M. Belshaw and A. L. Mason 1936-9-20 2688 Napa 3 mi nw Knoxville; North Inner Coast Range Comment
  JEPS112614  Lewisia rediviva Jake Ruygt 1991-5-11 2670 Napa Little Bear Valley, north of Sugarloaf Mountain 694 Comment
  UC472  Lilaea scilloides Willis L. Jepson 1893-4-26 Napa near Yountville; Napa River Basin Comment
  JEPS89888  Lilaeopsis masonii Dean Wm. Taylor with Glenn L. Clifton 1990-5-30 10815 Napa Napa R. in Napa, ca. 150 meters downstream of Third St. bridge, on west bank. Comment
  UCSB27470  Lilium rubescens Havlik, Neil 1969-6-29 Napa About 2 miles from State Highway 29 Comment
  UCD82054  Limnanthes douglasii Robin McMaster 1972-4-25 80 Napa Pope Valley. Comment
  JEPS19628  Limnanthes douglasii W. L. Jepson 1936-4-5 17412 Napa about 2 mi s Monticello; Berryessa Valley Comment
  UC1593390  Limnanthes douglasii subsp. nivea R. Ornduff 1966-4-21 6880 Napa 4.4 mi se Calistoga (pasture along Hwy 29, in ephemeral stream) Comment
  JEPS110643  Limosella acaulis Jake Ruygt 1979-4-12 505 Napa .2 miles west of Soscol Ave on Imola Ave 4 Comment
  UC23346  Linanthus acicularis Willis L. Jepson 1893-5-1 Napa Calistoga Napa River Basin Comment
  JEPS110967  Linanthus androsaceus Jake Ruygt 1983-5-8 1457 Napa Skyline Park 152 Comment
  RSA0062956  Linanthus androsaceus Reino Alava 1957-5-30 992 Napa Near the end of State Highway no. 37, in the southern end of Capell Valley. Comment
  JEPS110998  Linanthus bolanderi Jake Ruygt 2005-5-11 4835 Napa a ridge S of Bear Valley, E of Cub Valley 701 Comment
  JEPS110978  Linanthus ciliatus Jake Ruygt 1980-5-13 888 Napa Mt. St. John, Campbell Flat 316 Comment
  UCD118645  Linanthus dichotomus R. L. Smith 1948-5-7 s.n. Napa East branch of Monticello Valley, about 3 miles E of Samuel Springs. Comment
  JEPS110977  Linanthus dichotomus subsp. meridianus Jake Ruygt 1976-4-25 31 Napa 23.5 miles north of Pope Canyon Rd. on Berryessa-Knoxville R 630 Comment
  POM65868  Linanthus dichotomus subsp. meridianus C. F. Baker 1903-4-30 2627 Napa [Near] St. Helena. Comment
  SEINET8729335 Image available Linanthus dichotomus subsp. meridianus Herbert L. Mason 1942-1 12540 Napa Eight miles south of Pope Valley Store Comment
  JEPS110997  Linanthus jepsonii Jake Ruygt 1987-5-9 1980 Napa north of Catalpa Dr., Circle Oaks 396 Comment
  JEPS110972  Linanthus jepsonii Jake Ruygt 2005-5-11 4828 Napa Bear Valley, near Van Ness Creek 640 Comment
  JEPS110968  Linanthus parviflorus Jake Ruygt 1986-3-29 1672 Napa Blue Ridge above Toll Canyon 432 Comment
  UC1238002  Linanthus parviflorus John Weiler 1961-4-16 6181 Napa 2 mi s Napa State Hospital (along State Highway 12) Comment
  UC1301143  Linanthus parviflorus Helen K. Sharsmith 1963-4-20 5332 Napa 4 mi s Napa (off of Kelly Road); San Francisco Bay Region 45 Comment
  UC23783  Linanthus parviflorus Willis L. Jepson 1893-4-24 Napa e of St. Helena; Napa River Basin Comment
  UC908692  Linanthus parviflorus Herbert L. Mason 1926-3-22 2790 Napa along road from Calistoga to Petrified Forest (near Sonoma County line) Comment
  JEPS101591  Linanthus pygmaeus subsp. continentalis Dean W. Taylor 1998-6-18 16678 Napa ridge dividing Butts Canyon and Spanish Valley 502 Comment
  JEPS122715  Linum bienne Jake Ruygt 1987-4-20 1953 Napa South of Conn Dam near summit of ridge. Quad: Yountville. Comment
  SEINET12186115  Linum californicum F. H. Utech, Knight, W.; Knight, I.; Edwards, S. 1986-1 86 -336 Napa along Butts Canyon Road near junction with Snell Valley Road along Butts Creek 250 Comment
  CHSC4451  Lithocarpus densiflorus J. Potter 1967-6-26 312 Napa On Forest Service road to top of Mt. St. Helena, 1/4 mi. up from its beginning on State Hwy 29. 914 Comment
  UC762365  Lithocarpus densiflorus R. F. Hoover 1941-5-10 5012 Napa e side Mt. St. Helena Comment
  UCD83725  Lithophragma affine Surene Foutouhi; with E. Dean, Yuan-Chun Han 2010-5-7 4 Napa Along Wooden Valley Road; East side of the road; Lamb Vineyard Property. 188 Comment
  CDA12071  Lithophragma heterophyllum G. F. Hrusa, J. Messina 1989-3-3 5876 Napa North Coast Biodiversity Arena; Hwy. 128 W of Monticello Dam (Lake Berryessa). Comment
  CHSC20610  Lithophragma heterophyllum Carol C. Getzinger 1964-3-24 9 Napa Mt. Veeder Road, 2 miles south from junction with Dry Creek Road, near Pickle Can Creek. 548 Comment
  JEPS110627  Lithophragma heterophyllum Jake Ruygt 1977-4-7 177 Napa 2.8 miles NW of Mt. Veeder Rd. on Redwood Rd. 243 Comment
  UCD20028  Lithophragma heterophyllum C. H. Lamoureux; J. M. Tucker and R. Gankin 1957-4-17 1210 Napa Junction of Glass Mountain Road and Silverado Trail. Comment
  UCD18102  Logfia filaginoides Ellen Dean; with PLB 102 class 2000-4-29 758 Napa McLaughlin Reserve, ca. 0.75 as the crow flies miles NNW of the site of the old town of Knoxville, east side of the road to Clover Valley. 499 Comment
  CAS-BOT-BC342440  Logfia gallica John H. Thomas 1958-4-19 7108 Napa About 2 miles SW of Oakville 152 Comment
  JEPS20927  Logfia gallica W. L. Jepson 1923-4-29 9886 Napa St. Helena Comment
  UCD121179  Lolium multiflorum Ellen Dean; G. Golden, C. Loughran, PLB 102 interns 2012-5-5 7358 Napa East of Las Posadas Rd. California Dept. of Forestry's Las Posadas State Experimental Forest, east of the town of Angwin. NE Part of property. Ridge to the north of Recreation Flat area along undeveloped road. 416 Comment
  UCD18077  Lolium multiflorum Ellen Dean; with PLB 102 class 2000-4-22 633 Napa McLaughlin Reserve. Just S of the site of the old town of Knoxville on the N side of the Knoxville-Berryessa Rd., W side of the road to Clover Valley. 402 Comment
  UCD66635  Lolium temulentum A. A. Beetle; G. L. Stebbins Jr. 1942-6-3 3544 Napa 1 mile south of Napa-Lake County line. Rt. 29. North slope of Mt. St. Helena. Comment
  UC1563883  Lomatium californicum Barbara Ertter with Annetta Carter 1989-5-28 8498 Napa 9.0 mi s Knoxville tunnel (Berryessa-Knoxville Road n of Lake Berryessa); n of Lake Berryessa 243 Comment
  UCD19955  Lomatium dasycarpum E. A. Dean; Virginia Boucher 2002-2-28 904 Napa Quail Ridge Reserve. Along upper trail, north of stock pond near Quail Ridge tip. 0.25 airline miles NE of junction with West Rd. 304 Comment
  UCR198124  Lomatium dasycarpum C. Kennedy, L. Condon, R. J. Flannery, C. Hallock, N. Strahan 2000-4-22 05 Napa UC McLaughlin Reserve, first ridge south of Knoxville-Berryessa Road, along west side of Devilhead Road 480 Comment
  UCD118349  Lomatium dasycarpum subsp. tomentosum Reed Crane; Plant Biology 102 Collectors 2012-5-5 2 Napa Las Posadas State Experimental Forest. Northeastern part of property, uphill and north of Recreation Flat, along undeveloped road. 417 Comment
  UCD168164  Lomatium dasycarpum subsp. tomentosum John Gibson 2015-4-26 s.n. Napa BLM Knoxville Recreation Area; along 4WD road 1.5 mi from Knoxville-Berryessa Road., ca .25 mi. below Hunting Creek Campground; south side of Hunting Creek, 368 Comment
  JEPS104546  Lomatium marginatum var. purpureum Jake Ruygt 1979-4-6 484 Napa .3 mile east of Butts Canyon Rd. on Snell Valley Road 207 Comment
  JEPS41087  Lomatium marginatum var. purpureum Rimo Bacigalupi and L. R. Heckard 1965-5-15 9090 Napa 0.5 mi. s.e. of Devilhead Rd. from Knoxville to Cedar Valley (headwaters of Zim Zim Creek); Zim Zim Creek 487 Comment
  UC1197152  Lomatium marginatum var. purpureum J. P. Tracy 1899-6-13 413 Napa 3 - 4 mi. e. Angwin's (head of Moore's Creek, Howell Mt.); Howell Mt., Moore's Creek 365 Comment
  OBI8852  Lomatium nudicaule Willis L. Jepson 1893-6-14 14316 Napa Near Napa City; Road to Napa Soda Springs near Geualon Miller's Comment
  JEPS101764  Lomatium repostum Dean W. Taylor 1998-6-3 16456 Napa Kidd Canyon on road 50 m N of mine mill site ca. 0.5 road miles N of Twin Peaks Mine 579 Comment
  POM298615  Lomatium repostum Lincoln Constance, J. Davidson, W. H. Wagner, R. H. Shan 1946-5-18 s.n. Napa Souteast slope of Mount St. Helena, near the old inn. Comment
  UCD159751  Lomatium repostum G. Ledyard Stebbins 1971-5-2 8006 Napa Northeast of Napa. Ranch of Giles Mead, along Atlas Mountain [Peak] road. (Exact location unknown. Coordinates estimated by label maker as near Mead Ranch Vineyards.) 487 Comment
  SEINET13944722 Image available Lomatium repostum Lincoln Constance, J. F. Davidson, W. H. Wagner, R. H. Shan 1946-1 3048 Napa Southeast slope of Mount Saint Helena, near the old inn. Comment
  UCD164761  Lomatium utriculatum Jake Ruygt 2014-4-7 5917 Napa Sutro Ranch, south end near Foss. 700 Comment
  UCD47867  Lomatium utriculatum R. Blenkush; S. Hee, C. McWhorter, J. Moeller 2000-4-22 25 Napa Northern Napa County, McLaughlin Reserve, grassland 500 feet south of intersection between Old Knoxville Road and Berryessa-Knoxville Road. 411 Comment
  JEPS78641  Lomatium utriculatum John W. Willoughby 1975-5-23 784 Napa along State Hwy. 128 w. Monticello Dam (Vaca Mts.); Vaca Mts. 170 Comment
  UC176034  Lomatium utriculatum H. P. Chandler 1907-5-19 7574 Napa St. Helena, White Sulphur Spring Comment
  UCD95687  Lonicera hispidula Ellen Dean; with Clare Loughran 2011-5-20 7032 Napa On the border of Sonoma County. Private property at 4028 Spring Mountain Road. West of the town of St. Helena. 605 Comment
  JEPS12850  Lonicera hispidula var. vacillans W. L. Jepson 1898-1-4 Napa Howell Mountain Comment
  CAS-BOT-BC240798  Lonicera interrupta Peter H. Raven 1951-5-20 2859 Napa Oakville to Glen Ellen, Sonoma Co. 274 Comment
  JEPS126121  Lonicera involucrata var. ledebourii Jake Ruygt 1997-5-10 3848 Napa Atlas Peak Road about 0.2 miles south of Foss Valley (Mead). Capell Valley 7.5' Qua. Comment
  JEPS107214  Lotus grandiflorus var. grandiflorus Jake Ruygt 1998-6-24 4058 Napa County line ridge between Taylor Bluff and Cottonwood Canyon 737 Comment
  SEINET7072565  Lotus micranthus A. G. Vestal 1963-5-12 s.n. Napa Howell Mountain Road. Coordinate datum: NAD 27. UTM Zone 10, 548701mE, 4271193mN. Comment
  JEPS29583  Lotus micranthus Rimo Bacigalupi, and L. Heckard, P. C. Silva 1962-4-16 8440 Napa 2.2 mi n Atlas Peak road junction with Monticello road (Calif. 37) (along Atlas Peak road, on first switchback grade) 73 Comment
  JEPS107206  Lotus purshianus var. purshianus Jake Ruygt 1992-5-15 2960 Napa NW of Leoma Lakes, Wild Horse Valley Ranch 420 Comment
  UC1561231  Lotus purshianus var. purshianus Barbara Ertter with Elizabeth Neese 1988-10-2 7957 Napa ca 15 air mi Napa (s side of Rt 128 across from spillway, on Conn Creek, Lake Hennessey); North Coast Ranges, Lake Hennessey, Conn Creek 91 Comment
  CDA10890  Lotus wrangelianus G. F. Hrusa, M. Rejmanek 1993-5-15 10985 Napa University of California, Quail Ridge Reserve betw. Hwy 128 and Lake Berryessa. Comment
  POM128951  Lotus wrangelianus C. F. Sonne 1888-04 2780 Napa Napa Comment
  UCD65952  Ludwigia peploides subsp. montevidensis B. J. Grewell 2006-9-19 06- 71 -LU Napa Lake Hennessey where reservoir overflow backs up into confluence with Sage Creek south of Hwy 128. 97 Comment
  JEPS85667  Lupinus John Thomas Howell 1926-3-20 1701 Napa s side Mt. St. Helena; , s side 457 Comment
  SEINET5327608  Lupinus albicaulis C. M. Fryer 1948-5-1 14 Napa 14 miles north of Monticello. Comment
  JEPS107237  Lupinus albifrons Jake Ruygt 1976-5-2 46 Napa 4.5 miles NE of Atlas Peak Rd. on Monticello Rd. 335 Comment
  UCD148812  Lupinus albifrons Ellen Dean; Diana Hickson 2014-4-29 8119 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 601 Comment
  SEINET197847  Lupinus albifrons Mrs. H. P. Bracrlin 1930-3-29 5 m-3'30 Napa N.W. flaubs of Int. Yanger. Uprn Firddes abouth 1M. Prigles Comment
  RSA195346  Lupinus albifrons var. albifrons Gilbert Muth 1967-5-17 683 Napa Summit of Oat Hill Road 671 Comment
  RSA26103  Lupinus albifrons var. albifrons H. C. Cantelow 1936-3-21 s.n. Napa Howell Mt. Comment
  JEPS107238  Lupinus albifrons var. collinus Jake Ruygt 1998-3-29 3901 Napa Suscol Ridge overlooking Jameson Canyon 140 Comment
  POM10771  Lupinus albifrons var. eminens C. F. Baker 1903-4-20 2603 Napa Mt. St. Helena. Comment
  JEPS107232  Lupinus bicolor Jake Ruygt 1983-4-2 1402 Napa east end Green Valley Rd. 243 Comment
  UC338165  Lupinus bicolor unknown April 1889 Napa Calistoga Comment
  OBI2849  Lupinus bicolor R. L. Hoover 1968-4-20 44 Napa On Howell Mt Rd, 2.6 mi NE of State Rte 29/128, on W side of rd just below curve Comment
  SEINET10488633  Lupinus chamissonis Charles Piper Smith 1947-5-5 Smith 47202 Napa Cordelia, 3.4 mi. W, hwy 40. Comment
  UC15865  Lupinus formosus Willis L. Jepson 1893-1 Napa Napa River Basin, near Oakville Comment
  UC15867  Lupinus formosus var. formosus W. H. Brewer 1861-11-5 857 Napa near Camp 64, Napa Valley; Napa Valley, near Camp 64; Fields near Camp 64 (modern Yountville) fide FB Comment
  SEINET12165968  Lupinus leucophyllus W. Knight, Knight, I. 1985-1 6348 Napa Chiles Valley 290 Comment
  UCD18165  Lupinus microcarpus Eva Bayon; with Plant Biology 102 Class 2000-4-29 s.n. Napa Napa County. McLaughlin Reserve. North of Knoxville -- Berryessa Rd., along road from Knoxville to Clover Valley. Ca. 0.20 miles as the crow flies N of site of old town of Knoxville. 426 Comment
  JEPS107219  Lupinus microcarpus var. densiflorus Jake Ruygt 1986-4-20 1715 Napa HWY 29 north of Oakville 42 Comment
  OBI48337  Lupinus microcarpus var. densiflorus Rhonda Riggins 1982-5-22 1420 Napa CA 128 E, 7.2 mi E jct CA 121, 2.9 mi W Monticello Dam, Lake Berryessa 305 Comment
  UCD16026  Lupinus microcarpus var. microcarpus N. K. Strahan; C. Kennedy, L Condon, R. Flannery, C. Hallock 2000-4-22 14 Napa McLaughlin Reserve, North of Knoxville-Berryessa Rd., along old Knoxville Rd., just S of site of old town of Knoxville, W side of road. 38 deg. 49' 38.7' N, 122 deg. 20' 22.4' W; 420 m. Grassland, moist reddish-brown clay soil, E-facing slope. Herb, 3-6 dm tall, flowers light purple, white, or yellow. Comment
  JEPS65381  Lupinus nanus W. L. Jepson 1937-4-10 18003 Napa Howell Mt.; Howell Mt., Adam-and-Eve Ridge Comment
  RSA739595  Lupinus nanus John Dittes 2003-4-5 2003 -14 Napa Inner N CoastRange, 6 air miles N of Calistoga, W of confluence of St. Helena and Van Ness Creeks, 0.7 air mile S of the Lake County line. Below Hwy 29. 476 Comment
  UCD109074  Lupinus nanus G. F. Hrusa 1995-3-26 12026 Napa Univ. of Calif. - Quail Ridge Reserve. 290 Comment
  OBI3242  Lupinus nanus R. L. Hoover 1968-4-20 43 Napa On Howell Mt Rd, 2.6 mi NE of State Rte 29/128, on W side of rd just below curve Comment
  UCD161618  Lupinus nanus Jake Ruygt 2004-4-17 4586 Napa Big Ranch Road about 1/4 mile south of El Centro Avenue, Napa. 16 Comment
  UCD161683  Lupinus nanus Jake Ruygt 2008-5-10 5329 Napa Buzzard's Roost, east of Stags Leap, Napa Range. 609 Comment
  RSA169364  Lupinus nanus subsp. nanus L. S. Rose 1964-4-2 64014 Napa St. Helena 76 Comment
  JEPS65427  Lupinus polyphyllus W. L. Jepson 1893-6-26 44 t Napa Howell Mt. Comment
  CAS-BOT-BC202227  Lupinus sericatus John Thomas Howell 1934-3-26 11797 Napa Summit of highway, (at Molly Patten's), Mt. St. Helena Comment
  UC725353  Lupinus sericatus A. A. Heller 1940-5-6 15586 Napa just below the crossing of State Highway #29 e side Mt. St. Helena; e side of Mt. St. Helena Comment
  UCR43183  Lupinus sericatus L. F. LaPre 1985-4-24 s.n. Napa Inner North Coast Ranges, Along Livermore Road between Hwy 29 (at Mountain Mill House Girl Scout Camp) and White Point, near the Lake Co. line and south of Three Peaks 671 Comment
  UCD170379  Lupinus succulentus Daniel Potter; N Khuu 2016-5-8 876 Napa Along Nevada Creek, just west of Knoxville Wildlife Area boundary. 223 Comment
  UCD18164  Lupinus succulentus Eva Bayon; with Plant Biology 102 Class 2000-4-29 s.n. Napa Napa County. McLaughlin Reserve. North of Knoxville -- Berryessa Rd., along road from Knoxville to Clover Valley. Ca. 0.20 miles as the crow flies N of site of old town of Knoxville. 426 Comment
  SEINET10490282  Lupinus vallicola subsp. apricus Ira L. Wiggins 1932-3-12 Wiggins 5765 Napa Between franz valley and calistoga. Comment
  UC1152134  Luzula comosa Joseph P. Tracy 1933-4-30 12098 Napa head Moore's Creek (now Las Posadas Forest, Howell Mountain); Howell Mountains, head of Moore's Creek, now Las Posadas For Comment
  UCD167070  Luzula comosa var. comosa Jake Ruygt 2007-3-3 5122 Napa Las Posadas States Forest, in upper meadow north of fire station. 521 Comment
  CAS-BOT-BC441244  Luzula macrantha C. B. Wolf 1928-2-25 1484 Napa Mt. St. Helenas Grade, 2 miles below Hawkins Mt. Camp Comment
  CHSC102256  Lycopersicon esculentum Lowell Ahart 2009-10-27 16501 Napa Below the high water line of Lake Berryessa, about 100 yards east of Eticuera Creek, about 50 yards south of Eticuera Parking Area at the northeast end of the causeway, on the south side of Berryessa Knoxville Road, about 20 miles (air) northwest of Winters. 130 Comment
  UCD73519  Lythrum hyssopifolia Ayzik Solomeshch 2007-5-30 s.n. Napa NW of the city of Napa. Woolls Ranch, 1032 Mt. Veeder Road. 152 Comment
  JEPS106545  Madia elegans Jake Ruygt 1979-7-28 782 Napa corner of Adams St. and HWY 29,Yountvill 36 Comment
  UCD135709  Madia elegans Bruce G. Baldwin 1986-8-23 623 Napa 0.4 mile west of summit of California State Highway 29 at Robert Louis Stevenson State Park (ca. 0.1 mile west of park boundary). Comment
  POM225540  Madia elegans subsp. elegans Kate Eastwood Phelps 1932-09 s.n. Napa Myrtledale Hot Springs near Calistoga Comment
  CDA31290  Madia exigua D. G. Kelch 2010-5-6 10 .181 Napa Wooden Valley Road, about 5 km north of Napa/Solano county line, north of Rockville. Comment
  JEPS129102  Madia exigua Jake Ruygt 2016-5-3 6225 Napa Canyon south of Oil Well Road; E of Lake Berryessa. Lake Berryessa 7.5' Quad. Comment
  JEPS38329  Madia exigua W. L. Jepson 1938-5-22 18828 Napa Snell Valley Comment
  RSA654108  Madia exigua Beecher Crampton 1956-5-25 3453 Napa Vaca Mountains, Martley Canyon, along new road from Monticello Dam to Napa Comment
  UCD18057  Madia exigua Ellen Dean; with Plant Biology 102 class 2000-4-22 611 Napa Napa County. McLaughlin Reserve. First ridge south of Knoxville -- Berryessa Rd., east side of Devil Head Rd., along road to air quality station. 548 Comment
  JEPS38330  Madia exigua W. L. Jepson 1938-5-18 18794 Napa slope above St. Helen Sanitarium; Howell Mts. Comment
  UC584054  Madia exigua J. Clausen 1935-5-22 1070 Napa ca 1 mi e Chiles Valley Store Comment
  JEPS40336  Madia gracilis W. L. Jepson 1896-6-2 Napa Stone Bridge Hill Napa Valley, St. Helena Comment
  UCD19340  Madia gracilis M. A. Bibbo; E. Dean 2001-7-6 33 Napa Quail Ridge Reserve. SE corner of Lake Berryessa, just W of Monticello Dam. Along West rd, ca. 2.6 air miles from jct. with S Decker canyon rd. In dry creek drainage just W of rd. 228 Comment
  CAS-BOT-BC343198  Madia gracilis David D. Keck 1933-5-29 2372 Napa 10 miles north of Monticello on road to Knoxville Comment
  CAS-BOT-BC343202  Madia gracilis J. Clausen 1935-5-22 1071 Napa Ca. 1 mi. E. of Chiles Valley Store Comment
  POM315932  Madia gracilis Patricia Wilder 1965-6-9 3601 Napa Franz Valley School Road, ca. 1.1 mile N of road to Petrified Forest 183 Comment
  CAS-BOT-BC8139  Madia hallii Harvey Monroe Hall 1931-5-27 13094 Napa Near Knoxville, NE Napa County. Comment
  CDA8258  Madia madioides T. C. Fuller 1958-5-1 3717 Napa Highway 53, 3.5 miles north of Calistoga. 0 Comment
  RSA170280A  Madia nutans Joseph P. Tracy 1950-5-23 18663 Napa La Jota Plateau, on hills at head of Moore's Creek, 5 miles east of Angwin's, Howell Mountain. 518 Comment
  CAS-BOT-BC345049  Madia sativa David D. Keck 1933-11-10 2718 Napa Rutherford, just S. of town Comment
  JEPS40404  Madia sativa W. L. Jepson 1904-6-3 2437 Napa 1 to 2 mi from Stone Bridge (St. Helena to Howell Mt.) Comment
  UC33194  Madia sativa Willis L. Jepson 1894-5-1 Napa hills e St. Helena; Napa River Basin Comment
  JEPS113976  Maianthemum stellatum Jake Ruygt 1990-4-4 2458 Napa Skyline Park on Lake Marie trail 1/4 from lake. Mount George 7.5' Quad. Comment
  CAS-BOT-BC347511  Malacothrix floccifera H. M. Hall 1931-5-27 13096 Napa Near Knoxville Comment
  UCD134397  Malacothrix floccifera B. Wengeler 1995-4-30 s.n. Napa 0.2 mile north of Hwy 128 along Knoxville Road. 183 Comment
  UCD21543  Malacothrix floccifera B. Pekin; Ellen Dean, Mark Bibbo, Alex Lee 2003-4-26 9 Napa California, Napa County, McLaughlin Reserve. Along Knoxville-Berryessa Road, just W of turnoff to old town site of Knoxville, N side of road. 487 Comment
  UC194452  Malacothrix floccifera C. F. Sonne 1897-4-1 Napa Sulphur Springs St. Helena Comment
  UCD95678  Malva nicaeensis Ellen Dean; with Clare Loughran 2011-5-20 7023 Napa On the border of Sonoma County. Private property at 4028 Spring Mountain Road. West of the town of St. Helena. 609 Comment
  UCD19946  Marah fabacea E. A. Dean; Virginia Boucher 2002-2-28 902 Napa Quail Ridge Reserve. Along East Rd., 0.65 airline miles SE of stock pond at tip of ridge, where East and West Roads converge. 396 Comment
  RSA81728  Marah oregana Roxana S. Ferris 1951-3-26 12420 Napa Oakville-Glen Ellen Road, about 2 miles from Oakville. Comment
  UCR242400  Marah watsonii Ellen Dean, Susan Harrison, Dean Enderlend, Joe Callizo 2000-3-18 606 Napa North Coast Range, McLaughlin Reserve, c. 0.87 miles as the crow flies NNW of site of old town of Knoxville, east side of road to Clover Valley, along the old road that climbs up ridge on east side 537 Comment
  JEPS120398  Marah watsonii Jake Ruygt 1982-3-16 1128 Napa Capell Valley north of Monticello Road Comment
  JEPS107241  Medicago sativa Jake Ruygt 1987-4-21 1957 Napa .6 miles west of Monticello Dam on HWY 128 164 Comment
  CAS-BOT-BC269413  Melica californica Peter H. Raven 1952-5-31 4149 Napa W. of Rector Dam 274 Comment
  CAS-BOT-BC269415  Melica californica California Academy of Sciences 1870-5-2 s.n. Napa Oakville Comment
  CAS-BOT-BC269416  Melica californica California Academy of Sciences 1870-5-1 s.n. Napa Oakville Comment
  JEPS76280  Melica californica W. L. Jepson 1943-5-15 20774 Napa Knoxville Ridge Comment
  CHSC60172  Melica geyeri T. B. Devine 1980-4-12 697 Napa On Hwy. 29 ca 4 1/2 mi. sw of Robert Louis Stevenses State Park. Comment
  UCD81834  Melica geyeri Ellen Dean 2009-4-24 5464 Napa Property at 600 Petrified Forest Road. 170 Comment
  CHSC30531  Melica geyeri var. aristulata N. E. H. Prouty 1980-4-12 124 Napa Along Hwy. 29, roadmarker 41.12. Ca. 4 1/2 mi. SW of Robert Louis Stevenson State Park. Western slope of Mt. St. Helena. 243 Comment
  CAS-BOT-BC264215  Melica torreyana Peter H. Raven 1952-5-31 4146 Napa Summit of hills sw of Rector Canyon 304 Comment
  CAS-BOT-BC264216  Melica torreyana Peter H. Raven 1957-5-5 10760 Napa Hills at western edge of Calistoga 152 Comment
  CDA12102  Melica torreyana G. F. Hrusa 1989-4-24 5961 Napa North Coast Biodiversity Arena; W side of upper Chiles Valley. Comment
  JEPS122945  Melica torreyana Jake Ruygt 1984-4-7 1525 Napa Cedar Roughs, Pope Creek. Quad: Walter Springs. Comment
  SBBG29012  Melica torreyana B. Crampton 1967-5-11 Napa 4.5 mi E of Rutherford, Conn Reservoir Comment
  SEINET200624 Image available Melica torreyana J. P. Tracy 1933-6-2 12465 Napa Howell Mtn Rd 5 mi E of St Helena 305 Comment
  UCD73402  Melica torreyana Ayzik Solomeshch; Stephen Rae 2007-3-19 s. n. Napa Oakville Ranch, northwest of the town of Yountville. Along Oakville Grade Road, ca. 6 miles west of the intersection with Hwy 29. Comment
  UCD81835  Melica torreyana Ellen Dean 2009-4-24 5465 Napa Property at 600 Petrified Forest Road. 170 Comment
  UCD89191  Melica torreyana D. Sanchez-Mata; M. G. Barbour 1996-5-12 s.n. Napa Winters-Napa. Capell Valley. 250 Comment
  CDA32528  Melica torreyana P. B. Kennedy 1928-4-15 Napa Blake Estate, south east of Pacific Union College, Angwin 0 Comment
  JEPS65542  Melilotus albus W. L. Jepson 1937-9-29 18569 Napa St. Helena; on road to Sanitorium Comment
  JEPS120372  Mentha suaveolens Jake Ruygt 1986-6-28 1852 Napa Near intersection of Chiles-Pope Valley. Road and Lower Chiles Valley Road. Capell Valley 7.5' Quad. Comment
  JEPS120344  Mentzelia dispersa Jake Ruygt 2005-5-14 4844 Napa Ridge at NE end of County. Knoxville 7.5' Quad. Comment
  CAS-BOT-BC428853  Micranthes californica Carl B. Wolf 1928-5-3 1839 Napa Base of Mt. St. Helena Comment
  UCD102804  Micranthes californica H. H. Dickinson 1950-4-1 16 Napa Putah Canyon, near Monticello. Comment
  UCD102808  Micranthes californica D. H. Hartmann 1942-3-7 s.n. Napa in a canyon of Green Valley. Comment
  UCD170200  Micranthes californica Daniel Potter 2015-3-14 757 Napa Knoxville Wildlife Area, west of Zim Zim Creek. 241 Comment
  CDA12105  Micropus californicus G. F. Hrusa 1989-4-24 5963 A Napa North Coast Biodiversity Arena; Hwy 128, approx. 10 miles S of Pope Valley. Comment
  UCD159957  Micropus californicus Alice Warrick 2007-4-20 s.n. Napa Quail Ridge UC Reserve. 2005 Pleasure Fire burn site, along west loop road, north of Decker canyon. Along roadside on the way to burn site. 243 Comment
  CAS-BOT-BC348548  Micropus californicus var. californicus M. S. Jussel 1931-4-19 s.n. Napa Pope Valley Comment
  UC527930  Micropus californicus var. californicus R. Bacigalupi, R. S. Ferris, and Ira L. Wiggins 1933-6-2 6655 Napa roadside 5 mi e St. Helena (on road to Pope Valley) 304 Comment
  UCD134509  Micropus californicus var. californicus J. M. Tucker 1965-5-15 3829 Napa Zim Zim Creek, around 1/2 mile west of Devilhead Road, and around 3 miles south - southwest of Knoxville. Comment
  UC1301043  Micropus californicus var. californicus Helen K. Sharsmith 1963-4-20 5347 Napa on Monticello Road San Francisco Bay Region, southwest slope of Napa Range 152 Comment
  CAS-BOT-BC348972  Microseris douglasii subsp. douglasii Peter H. Raven; G. L. Stebbins, Jr. 1953-4-19 5337 Napa Pope Creek e. of Samuels Springs 91 Comment
  POM41557  Microseris douglasii subsp. douglasii Marcus E. Jones 1924-4-24 s.n. Napa Napa. Comment
  UC50033  Microseris douglasii subsp. douglasii Willis L. Jepson 1894-5-1 Napa Conn Valley Napa River Basin Comment
  JEPS106890  Microseris douglasii subsp. tenella Jake Ruygt 1989-5-2 2300 Napa Airport Rd., north side about .2 miles west of HWY 29 12 Comment
  JEPS4734  Mimulus angustatus E. V. Ferguson 1920-5-15 351 Napa Howell Mountain Comment
  RSA293488  Mimulus aurantiacus var. aurantiacus John Dourley 1979-07 1856 Napa Wooden Valley Rd., north-east of Napa Comment
  UC796465  Mimulus aurantiacus var. aurantiacus Ira L. Wiggins 1949-4-30 12077 Napa about 1.5 mi from Calistoga (along old toll road between Calistoga and Middletown) Comment
  RSA298679  Mimulus aurantiacus var. aurantiacus D. C. Michener, Walter Wisura, D. Charlton, John Dourley 1982-7-25 4117 Napa [Unspecified] Comment
  UCD122512  Mimulus cardinalis D. H. Hartmann 1941-8-19 s.n. Napa Putah Canyon. Comment
  SBBG28944  Mimulus douglasii J. T. Howell 1940-5-19 Napa upper Saint Helena Crk Comment
  JEPS10573  Mimulus douglasii Willis L. Jepson 1893-3-13 60 m Napa hills e St. Helena; Napa River Basin, Howell Mt. foothills Comment
  OBI9446  Mimulus guttatus R. L. Hoover 1968-4-20 59 Napa NE of jctn of Aetna Springs, Pope Valley, and Butts Cyn Rds Comment
  UCD170682  Mimulus guttatus 2018-4-28 5 Napa Cedar Roughs Wildlife Area, to the west of Lake Berryessa, on the south side of Pope Creek and Pope Canyon Road. Along Dollarhide Road (undeveloped road/trail) on the west side of Maxwell Creek. 158 Comment
  RSA114031  Mimulus guttatus Peter H. Raven 1957-5-5 10754 Napa Calistoga. Comment
  SEINET7041067  Mimulus guttatus Christopher T. Ivey 2002-4-23 358 Napa West side of Chiles-Pope Valley Road, 4.2 miles south of Pope Canyon Road. Comment
  JEPS110584  Mimulus inodorus Jake Ruygt 1979-6-14 697 Napa north of PG&E substation, Tulocay, on Suscol Hill 24 Comment
  JEPS110578  Mimulus kelloggii Jake Ruygt 1998-5-20 3989 Napa Blue Ridge, +/-1.5 mi north of Mays Flat 670 Comment
  UC26955  Mimulus kelloggii W. L. Jepson 1893-5-2 29 m Napa Pope Valley grade from Calistoga Comment
  UCD20376  Mimulus kelloggii K. Esau 1933-4-14 s. n. Napa Napa County, Calistoga, near petrified forest. Comment
  JEPS110609  Mimulus layneae Jake Ruygt 1980-6-17 921 Napa 23.4 miles north of Pope Canyon Rd. on Berryessa-Knoxville R 640 Comment
  UC147882  Mimulus layneae J. P. Tracy 1902-5-19 1544 Napa 3-4 mi e Angwin's; Howell Mountain, Head of Moores Creek 426 Comment
  UC1746030  Mimulus layneae Annetta M. Carter, Joseph Tracy, Rimo Bacigalupi 1950-5-23 2767 Napa Howell Mtn. La Jota Plateau - Las Posadas State Forest. 533 Comment
  RSA293050  Mimulus layneae Reino Alava, Lincoln Constance, Robert Ornduff 1957-5-5 765 Napa Mt St Helena. Comment
  UC963877  Mimulus layneae Milo S. Baker 1947-7-7 11849 Napa s Mt. St. Helena Inn (at end of wood rd.) 914 Comment
  UC26989  Mimulus microphyllus W. L. Jepson 1893-4-26 Napa near La Lomita; Napa River Basin; Napa River Basin, near La Lomita Comment
  UCD122707  Mimulus nasutus L. P. Thibault 1995-5-21 52 Napa along Wragg Creek north side of Highway 128 about 3 mi. west of Wragg Canyon Rd. 250 Comment
  JEPS110597  Mimulus nudatus Jake Ruygt 1995-6-17 3507 Napa Butts Canyon Road; about 100 yds up slope. 307 Comment
  JEPS110598  Mimulus nudatus Jake Ruygt 1991-5-25 2693 a Napa Paradise Valley 280 Comment
  UCD163404  Mimulus nudatus D. Slakey; CNPS Volunteers 2015-4-25 118 Napa near Knoxville. Adjacent to parking lot for campground at west end of Hunting Creek Rd. 335 Comment
  UCD170353  Mimulus nudatus Daniel Potter; H Won, D McNair, A Holland, K Battenberg 2016-4-17 852 Napa Knoxville Wildlife Area, upper Zim Zim Creek drainage east of Knoxville-Devihlead Road. 459 Comment
  UCD96581  Mimulus nudatus Dena Grossenbacher; Brian Green 2008-5-29 851 Napa Along Devil's Head Road, 2 miles south of Berryessa - Knoxville Road junction. 502 Comment
  UCR42417  Mimulus nudatus L. F. LaPre 1986-5-6 s.n. Napa Devil Head Road, c. 2 mi south of the Berryesa to Knoxville Road, 1.75 airlines mi south of Knoxville & about 1.75 mi east of the Lake Co. line. 488 Comment
  UCD85033  Mimulus pulsiferae Dena Grossenbacher 2009-5-14 992 Napa Along east side of Ink Grade Road about 0.3 miles north of junction with Howell Mountain Road. 557 Comment
  JEPS110592  Mimulus tricolor Jake Ruygt 1998-5-2 3954 Napa Jerd Creek 289 Comment
  CAS-BOT-BC388753  Minuartia douglasii Carl B. Wolf 1928-5-3 1791 Napa 2 miles south of Hawkins Mount Inn Camp Comment
  CAS-BOT-BC388755  Minuartia douglasii Alice Eastwood 1915-6-6 4677 Napa Mt. St. Helena Comment
  CAS-BOT-BC388756  Minuartia douglasii Alice Eastwood 1918-5-1 6834 Napa Mt. St. Helena Comment
  JEPS106748  Minuartia douglasii Jake Ruygt 1981-4-12 971 Napa Three Peaks 670 Comment
  UCD148764  Minuartia douglasii Jake Ruygt 2007-5-17 5177 Napa Napa County; Duff Ranch, NW of Potato Hill. 777 Comment
  UCD169787  Minuartia douglasii Daniel Potter; Ninh Khuu, Max Potter, James Shoulders 2015-4-18 795 Napa Knoxville Wildlife Area. Upper Zim Zim Creek drainage. 446 Comment
  CAS-BOT-BC388762  Minuartia douglasii Betty H. Johnson 1958-6-15 611 Napa Slope near St. Helena River, 6.4 mi. S.-W. of Middletown Comment
  UCD167260  Mollugo verticillata Jake Ruygt 1991-6-29 2753 Napa 3.2 miles north of Pope Canyon Road on Berryessa Knoxville Road. 121 Comment
  UCD166667  Monardella villosa subsp. villosa Jake Ruygt 2007-6-2 5220 Napa Duff Ranch, road above Simmons Canyon. 573 Comment
  UC1995309  Monardella viridis John Thomas Howell 1937-7-4 13060 Napa Wooden Valley Grade Comment
  UCD63152  Monolopia major Jake Ruygt 1998-4-22 3931 Napa Blue Monday Mine, Cement Creek Road. 499 Comment
  JEPS112660  Montia fontana Jake Ruygt 1979-4-11 500 Napa 1.3 miles east of Soscol Avenue on Imola Avenue 36 Comment
  JEPS43263  Montia fontana W. L. Jepson Apr. 1893 Napa Napa Valley Comment
  SEINET7296349 Image available Muhlenbergia andina Beecher Crampton 1961-1 5969 Napa North end of Capell Valley above Capell Creek along State Hy. 128. Comment
  UCD145104  Myriophyllum spicatum Tim Allen 2001-7-12 110326 7 Napa Lake Berryessa, close to 4290 Knoxville Rd, Napa. Comment
  JEPS129124  Najas minor Jake Ruygt 2010-8-14 5722 Napa NW shore of Lake Berryessa; Barton Hill. Walter Springs 7.5' Quad. Comment
  CDA10880  Nassella lepida G. F. Hrusa, M. Rejmanek 1993-5-15 10975 Napa University of California, Quail Ridge Reserve betw. Hwy 128 and Lake Berryessa. Comment
  SEINET212975  Nassella lepida Diana Toth 1974-4-29 Napa Rt 128 between Rutherford and Davis Comment
  UCD149687  Nassella lepida Stephen P. Rae; Ayzik Solomeshch 2006-5-7 s.n. Napa Howell Mountain Plateau, about 1 km west of Angwin. McCrane property. Vineyard conversion. 526 Comment
  UCD159947  Nassella lepida Alice Warrick 2008-4 s.n. Napa Quail Ridge UC Reserve. 2005 Pleasure Fire burn site, along west loop road, north of Decker canyon. 243 Comment
  UCD87897  Nassella lepida Jack Maze 1964-3-8 49 Napa 3 miles southwest of Monticello Dam, State Highway 128. Comment
  UCD87903  Nassella lepida Gerry North 1993-3 27 Napa 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. 60 m S of Vista Point at old slide. On NE side of Adobe Canyon Road. Comment
  UCD87956  Nassella lepida J. Street 1950-4-25 s.n. Napa 4 miles east of Rutherford. Comment
  CAS-BOT-BC260177  Nassella pulchra John Thomas Howell 1931-4-2 6087 Napa Summit of Wooden Valley Grade 8 miles E of Napa Comment
  CAS-BOT-BC260181  Nassella pulchra Doris K. Kildale 1928-5-8 5054 Napa 0.5 mile from Napa-Solano County line, on road to Vacaville Comment
  UC23627  Navarretia heterodoxa Edw. L. Greene 1894-6-17 Napa Calistoga Comment
  UCD160711  Navarretia intertexta subsp. intertexta Ellen Dean; Jake Ruygt 2015-5-23 8770 Napa Knoxville Wildlife Area. California Dept. of Fish and Wildlife public lands. Headwaters of Nevada Creek.NE corner of land parcel. 592 Comment
  UCD106388  Navarretia linearifolia subsp. pinnatisecta K. Esau; D. Hartmann 1941-7-17 s.n. Napa Between Middletown and Calistoga. Comment
  JEPS112554  Navarretia mellita Jake Ruygt 1982-7-17 1374 Napa Deer Park Rd. at Four Corners 414 Comment
  UC23709  Navarretia mellita Edw. L. Greene 1894-6-17 Napa Calistoga Comment
  JEPS110949  Navarretia pubescens Jake Ruygt 1977-5-1 209 Napa east end of Westgate Dr. 115 Comment
  CAS-BOT-BC232667  Navarretia pubescens Peter H. Raven 1951-6-26 3077 Napa Coppell Valley 304 Comment
  RSA92795  Navarretia pubescens P. H. Raven 1951-3-26 2879 Napa Butts Canyon . 305 Comment
  SEINET12350537  Navarretia pubescens Unknown 1959-5-26 5258 Napa Vaca Mountains, Marley Canyon, along State highway 128 Comment
  UC1221750  Navarretia pubescens Beecher Crampton 1959-5-26 5258 Napa Martley Canyon Vaca Mountains (along State Hwy 128) Comment
  UCD36307  Navarretia pubescens Beecher Crampton 1953-5-19 1309 Napa 4 miles south of Monticello, along Highway 128. Comment
  JEPS123265  Navarretia rosulata David Gowen with Jake Ruygt 2011-6-11 1157 Napa Cedar Roughs. Comment
  JEPS70465  Navarretia squarrosa Willis L. Jepson 1903-9-7 2353 Napa w of St. Helena (above St. Helena Reservoir); Napa River Basin, York Creek Comment
  JEPS120356  Navarretia subuligera Jake Ruygt 2005-5-11 4837 Napa South of Bear Valley. Detert Reservoir 7.5' Quad. Comment
  JEPS110944  Navarretia tagetina Jake Ruygt 1983-6-1 1484 Napa HWY 12 at Sonoma County line 91 Comment
  UCD48635  Navarretia tagetina Herbert L. Mason 1934-4-30 8110 Napa Talus soil along road, tributary of Putah Creek, Pope Valley, Napa County, California. Comment
  JEPS70510  Navarretia viscidula Willis L. Jepson 1903-9-6 2347 Napa St. Helena Napa River Basin Comment
  JEPS22750  Nemacladus capillaris Francia Chisaki 1957-5-30 971 Napa between Chiles Valley and Monticello (by Soda Creek); Soda Creek Comment
  SEINET10464791  Nemacladus capillaris Chisaki 1957-5-30 CHISAKI 971 Napa By Soda Creek, between Chiles Valley and Monticello Comment
  SEINET10873103  Nemacladus capillaris Baker 1947-7-7 Baker 11852 Napa At end of wood road leading south from Mount St. Helena Inn towards "The Crater" 914 Comment
  JEPS106580  Nemacladus montanus Jake Ruygt 1995-6-17 3500 Napa SE corner of Butts Canyon Road at Snell Valley Road 225 Comment
  UCD72910  Nemacladus montanus B. Wengeler 1995-4-30 s.n. Napa 2 m N of hwy 128 along Knoxville Rd. 183 Comment
  SEINET10461255  Nemacladus montanus Hoffman 1952-5-24 HOFFMAN s.n. Napa Sage Canyon road, 8.3 miles west of the junction of the Monticello, Sage Canyon and Winters roads Comment
  JEPS3069  Nemophila heterophylla E. Kraeger 1926-3-28 Napa Russ House about 1/2 mi from Mt. St. Helena Inn; <near> Mt. St. Helena Inn Comment
  POM182714  Nemophila heterophylla D. D. Keck 1931-4-2 1014 Napa Wooden Valley Grade, west side of Napa Range, 5 miles NE of Napa. 170 Comment
  UC880874  Nemophila heterophylla Lewis S. Rose 1939-4-16 39087 Napa 10 mi ne Napa (Wooden Valley); ne of Napa, Wooden Valley Comment
  CHSC43316  Nemophila menziesii Lowell Ahart 1969-4-7 25 Napa On moist soil of a road cut, near Lake Berryessa. 243 Comment
  JEPS110848  Nemophila menziesii var. atomaria Jake Ruygt 1998-4-11 3904 Napa Langtry Road at Napa/Sonoma County line. 579 Comment
  JEPS110847  Nemophila menziesii var. menziesii Jake Ruygt 1982-2-16 1101 Napa .3 mile north of Chimney Golf Course on Silverado Trail 20 Comment
  UC126921  Nemophila parviflora H. P. Chandler 1907-5-14 7569 Napa White Sulphur Springs 150 Comment
  JEPS126026  Nemophila parviflora var. parviflora Jake Ruygt 1979-5-7 586 Napa 2.5 miles NW of Mt. Veeder Road on Redwood Road. Sonoma 7.5' Quad. Comment
  JEPS110869  Nemophila pedunculata Jake Ruygt 1993-4-3 3183 Napa Little Bear Valley 673 Comment
  CDA34663  Nicotiana acuminata var. multiflora L. Ahart 2009-10-12 16455 Napa Below the high water line of Lake Berryessa, along Capell Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. Comment
  CHSC102298  Nicotiana quadrivalvis Lowell Ahart 2009-10-12 16454 Napa Below the high water line of Lake Berryessa, along Capell Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. 437 Comment
  JEPS12271  Nicotiana quadrivalvis Helen-Mar Wheeler 1942-7-17 Napa Conn Valley Comment
  UCD73443  Nuttallanthus texanus Ayzik Solomeshch 2007-8-7 s. n. Napa Oakville Ranch, ca. 6 miles northwest from Yountville. On Hwy. 29 take 'Oakville grade' road, ca. 3 miles north from Yountville. 205 Comment
  UCD67960  Nuttallanthus texanus Arlene Johnston 1974-5-11 90 Napa Napa. Bodega Bay. Stabilized dunes. Coastal Strand Plant Association, dominated by Lupinus arboreus. Sandy soil, on steep slope, dry area in full sun. Annual herb, 5-12 cm high. Rare. 30 Comment
  RSA475189  Odontostomum hartwegii Aaron Liston, Sara Meury 1988-6-1 755 -1 Napa Bothe-Napa Valley State Park; campground site 21. 150 Comment
  JEPS110556  Oemleria cerasiformis Jake Ruygt 1979-3-24 458 Napa 5.1 miles NE of Westgate Dr. on Atlas Peak Rd. 420 Comment
  JEPS104513  Oenanthe sarmentosa Jake Ruygt 1980-5-9 880 Napa Edgerley Island 0 Comment
  UC1197138  Oenanthe sarmentosa Joseph P. Tracy 1938-8-7 16094 Napa Yountville 30 Comment
  UC126482  Oenothera elata subsp. hirsutissima Harley P. Chandler Sep 7 1906-Sep 14 1906 7135 Napa Alta Loma Ranch Howell Mountain 487 Comment
  JEPS110572  Orobanche fasciculata Jake Ruygt 1992-5-20 2992 Napa west of Leoma Lakes, Wild Horse Valley Ranch 432 Comment
  CAS-BOT-BC500127  Orobanche fasciculata Alice Eastwood 1915-6-7 4704 Napa Mt. St. Helena Comment
  SEINET8853707 Image available Orobanche fasciculata Bill Wardell 1961-1 27 Napa State Highway 37, 20 miles southwest of Monticello Dam Comment
  UCD167258  Orobanche uniflora Jake Ruygt 1998-4-18 3926 b Napa Blue Ridge about 1 mile north of Mays Flat. 701 Comment
  UCD167625  Orobanche uniflora Jake Rugyt 1980-4-22 844 Napa 8.9 miles north of Pope Canyon Rd. on Berryessa-Knoxville Rd. 198 Comment
  JEPS110567  Orobanche valida subsp. howellii Jake Ruygt 1986-6-14 1823 Napa Craters, canyon at head of Table Rock 707 Comment
  POM15659  Orthocarpus attenuatus C. F. Baker 1903-4-19 1993 Napa Calistoga. Comment
  RSA202261  Orthocarpus densiflorus L. D. Thurman 1964-4-15 396 Napa Silverado trail 5 mi N of Napa. Comment
  RSA155421  Orthocarpus erianthus L. S. Rose 1961-3-30 61023 Napa 6 mi w of Napa. 122 Comment
  RSA195330  Orthocarpus lithospermoides var. bicolor Gilbert Muth 1967-5-25 701 Napa [No location information provided.] 15 Comment
  UCD149713  Oxalis micrantha Stephen P. Rae; Ayzik Solomeshch 2007-4-10 s.n. Napa Signorello Winery, 4500 Silverado Trail, ca. 1/4 km east of Silverado Trail. 65 Comment
  CDA4676  Oxalis rubra W. O. McCartney 1966-5-12 49 Napa Monticello Road, 3 miles north of Vicky Road, Napa. 0 Comment
  SEINET9352078  Packera clevelandii Unknown 1993-10-3 11425 Napa Moist edges of stream w/n stand of Cupressus sargentii. 2.6 mi SW along Knowville-Devilhead Rd from Knoxville-Berryessa Rd. Comment
  UCD37945  Packera eurycephala Beecher Crampton 1962-5-16 6427 Napa 0.75 mile E of Aetna Springs. Comment
  JEPS37601  Packera eurycephala Joseph Ewan 1934-4-30 Napa 8 mi above Monticello; Pope Creek Comment
  SD52970  Packera eurycephala Peter H. Raven 1962-5-31 17919 Napa by stream in serpentine on Lower Lake- Knoxville road, 1.9 miles south of Lake County line. Comment
  CAS-BOT-BC316876  Packera eurycephala var. eurycephala T. M. Barkley; N. D. Burroughs 1964-6-19 300 Napa on road between Aetna Springs and junction of Pope Valley-Middletown Road; one mile east of Aetna Springs Comment
  JEPS106860  Packera eurycephala var. eurycephala Jake Ruygt 1998-5-30 4008 Napa Mt. St. Helena fire trail about 3/4 mile from RLS cabin trail. 883 Comment
  UC1234611  Packera eurycephala var. eurycephala Peter H. Raven 1962-5-31 17919 Napa 1.9 mi s Lake County line (on Lower Lake-Knoxville road) Comment
  CAS-BOT-BC316875  Packera eurycephala var. eurycephala John Thomas Howell 1935-5-12 12626 Napa Pope Creek Canyon 1 mile below Samuels Springs Comment
  CAS-BOT-BC316943  Packera greenei Robert Francis Hoover 1966-5-28 9878 Napa just south of summit on Butts Canyon Road from Pope Valley Comment
  UC761908  Packera greenei Robert F. Hoover 1941-6-8 5319 Napa e side Mount St. Helena Comment
  UCD20764  Panicum capillare M. Bibbo; with E. Dean and K. Mawdsley 2002-8-29 113 Napa McLaughlin UC Reserve. S of the reserve near Hunting Creek campground where Hunting Creek Rd. crosses the Creek. 100 yards downstream of the campground. 640 Comment
  UCD33483  Panicum capillare Beecher Crampton 1968-10-1 8386 Napa Napa County, ca. 3 miles north of Moskowite Corner on Hwy. 128. Comment
  JEPS120368  Papaver heterophyllum Jake Ruygt 1981-5-13 1021 Napa American Canyon east of Flosden Road. Cordelia 7.5' Quad. Comment
  JEPS110604  Parentucellia viscosa Jake Ruygt 2003-6-5 4535 Napa Big Ranch Road about 1/4 mi S of El Avenue 16 Comment
  UC11240  Parvisedum pumilum Willis L. Jepson 1893-4-28 Napa near Napa City (Napa River Basin); Napa River Basin Comment
  UCD88729  Paspalum dilatatum Beecher Crampton 1962-10-9 6699 Napa 1.25 miles southwest Angwin, Howell Mtn. Road. Conn Creek. Comment
  CDA2124  Paspalum urvillei B. E. Eaton 1974-8-27 Napa Heinke Drive, 0.4 mile north of Coombsville Road east of Napa. 0 Comment
  UCD74366  Pectocarya pusilla Jake Ruygt 1981-4-18 978 Napa Harris Canyon west of Blue Ridge. 243 Comment
  UCR20384  Pedicularis densiflora D. V. Hemphill, J. C. Roos 1949-4-16 4289 Napa North Coast Range, Pacific Union College, Howell Mountain 499 Comment
  RSA10634  Pedicularis densiflora Carl B. Wolf 1928-5-4 1856 Napa Upper slopes of Mount St. Helena. Comment
  UCD36151  Pedicularis densiflora Beecher Crampton 1953-2-26 989 Napa 6 miles east of Monticello, on Highway 128, above Putah Creek. Comment
  SEINET3872924  Pellaea andromedifolia Daphne K. Christopher, Hannah Stevens; Mark Bibbo 2003-4-11 143 Napa Uc Davis, Stebbins Cold Canyon Reserve. Main trail through canyon to old homesite foundation.; 0 166 Comment
  UCD73415  Pellaea andromedifolia Ayzik Solomeshch; Stephen Rae 2007-3-19 s. n. Napa Oakville Ranch, northwest of the town of Yountville. Along Oakville Grade Road, ca. 6 miles west of the intersection with Hwy 29. Comment
  JEPS103983  Pellaea mucronata Jake Ruygt 1979-2-22 432 Napa west face of Mt. George 121 Comment
  UC1745679  Pellaea mucronata var. mucronata Annetta M. Carter, Edward Lee 1935-12-1 1016 Napa Wooden Valley Grade E of Napa on road to Monticello. 43.1 mi. from Berkeley. Comment
  UCD73458  Pellaea mucronata var. mucronata Ayzik Solomeshch 2007-5-30 s. n. Napa Brend-Morgan property, ca. 3 miles northeast of city of Napa. 215 Comment
  UC197940  Pellaea mucronata var. mucronata C. F. Sonne 1895-4-1 Napa Soda Springs Comment
  POM204007  Penstemon heterophyllus subsp. heterophyllus M. S. Jussel 1931-4-19 s.n. Napa Pope Valley Comment
  JEPS7561  Penstemon heterophyllus var. heterophyllus W. L. Jepson 1936-5-31 17566 Napa Howell Mt. betw. Toland House and Angwin; Howell Mt. btw Toland House and Angwin Comment
  JEPS7217  Penstemon newberryi var. sonomensis E. Ferguson 1920-5-15 354 Napa Silverado Mine , Silverado Mine (Mt. St. Helena) Comment
  RSA10641  Penstemon newberryi var. sonomensis Carl B. Wolf 1928-5-4 1849 Napa Upper slopes of Mount St. Helena. Comment
  UC35614  Pentachaeta exilis Willis L. Jepson 1893-5-8 Napa Howell Mt. Napa River Basin Comment
  CDA11621  Pentagramma triangularis G. F. Hrusa, G. L. Stebbins 1994-3-11 11595 Napa North Coast Biodiversity Arena; Las Posadas State Forest. E of Fire Station in upper drainage of Moore Creek. Comment
  UCD137745  Pentagramma triangularis G. F. Hrusa; G. L. Stebbins 1994-3-11 11595 Napa Las Posadas State Forest, east of fire station in upper drainage of Moore Creek. 450 Comment
  JEPS60091  Pentagramma triangularis subsp. triangularis W. L. Jepson 1943-5-15 20777 Napa Knoxville Ridge Comment
  UCD48368  Pentagramma triangularis subsp. triangularis Anne Mini; K. McBride, S. Snow, K. Ehmsen 2001-4-14 14 Napa Quail Ridge Reserve, SE corner of Lake Berryessa, just W of Monticello Dam. Decker Canyon, along South Decker Canyon Rd. South of junction with Cut Off Rd., 10 ft. from creek bed. 182 Comment
  CAS-BOT-BC71675  Pentagramma triangularis subsp. triangularis Jean Fottrell 1906-7-1 s.n. Napa unspecified Comment
  JEPS104486  Perideridia gairdneri subsp. gairdneri Jake Ruygt 1991-7-24 2799 Napa Leoma Lakes, Wild Horse Valley Ranch 417 Comment
  UCD18114  Perideridia kelloggii K. Carpenter; with E. Dean and K. Chaney. 2000-8-11 50 Napa Napa County. Just south of the border with McLaughlin Reserve. Along Knoxville-Berryessa Rd, ca. 1.4 road miles south of intersection with dirt road leading to old town of Knoxville, SW side of road, along drainage leading into Knoxville Creek; there is an old homestead uphill from collection site. 371 Comment
  UC1228238  Phacelia egena J. R. Sweeney, H. L. Mason, R. Bacigalupi 1953-6-8 Napa top of grade of rd over e flank of mt Mt. St. Helena (from Calistoga to Middletown) 670 Comment
  UC24385  Phacelia imbricata Edw. L. Greene July 1891 Napa near St. Helena; ; near St. Helena Comment
  JEPS110864  Phacelia imbricata subsp. imbricata Jake Ruygt 1990-3-10 2445 Napa White Sulphur Springs Rd.; west end 259 Comment
  JEPS126045  Phacelia suaveolens var. suaveolens Jake Ruygt 1989-5-13 2323 Napa Vaca Mount about 1 mile north of Mt. Vaca. Mount Vaca 7.5' Quad. Comment
  JEPS122961  Phalaris aquatica Jake Ruygt 1982-6-29 1343 Napa 0.6 mile south of Yountville on Highway 29. Quad: Yountaville. Comment
  RSA128561  Phalaris aquatica P. H. Raven 1951-6-24 3034 Napa Napa; 30 Comment
  UCD88185  Phalaris aquatica R. Tofsrud 1948-5-1 s.n. Napa Napa. Comment
  UCD73505  Phalaris minor Ayzik Solomeshch 2007-5-28 s. n. Napa NW of the city of Napa. Woolls Ranch, 1032 Mt. Veeder Road. 152 Comment
  CAS-BOT-BC134983  Phoradendron bolleanum Peter H. Raven 1951-6-10 s.n. Napa Cratter Region E of Palisades 762 Comment
  UCD102037  Phoradendron bolleanum O. A. Leonard 1962-3-9 s.n. Napa Near Napa-Lake County line, 4 miles northwest of Knoxville on road to Lower Lake. 640 Comment
  UCD48242  Phoradendron bolleanum R. Blenkush; S. Hee, C. McWhorter, J. Moeller 2000-4-22 6 Napa Northern Napa County, McLaughlin Reserve, first ridge south of Knoxville-Berryessa Road, on Devilhead Road. 487 Comment
  JEPS110810  Phoradendron villosum Jake Ruygt 2001-3-1 4293 Napa near Routan Creek 259 Comment
  UCD149584  Phyla nodiflora Stephen P. Rae; Ayzik Solomeshch 2006-5-30 s.n. Napa On the north side of Soscol Ridge, south of the city of Napa, ca. 3/4 km east of Highway 121, on the south side of Soscol Creek. 25 Comment
  JEPS110894  Phyla nodiflora var. rosea Jake Ruygt 1991-6-29 2754 Napa 3.2 miles north of Pope Canyon Rd. on Berryessa-Knoxville R 121 Comment
  SBBG50615  Physocarpus capitatus R. A. Christison 1960-4-24 51 Napa 2 mi below jct of Silverado Rd with Glass Mtn Rd 15 Comment
  UC466696  Physocarpus capitatus H. P. Chandler 1907-5-12 7565 Napa White Sulphur Spring St. Helena Comment
  CDA12114  Pickeringia montana G. F. Hrusa 1989-5-2 7185 Napa North Coast Biodiversity Arena; Hwy 128 approx. 1/2 mile S of Knoxville-Berryessa Rd. intersection. Comment
  UCD108172  Pickeringia montana D. Sanchez-Mata; M. G. Barbour 1996-5-12 s.n. Napa Winters-Napa. Capell Valley. Capell Creek. 250 Comment
  CDA7596  Picris echioides T. C. Fuller 1957-10-25 552 -57 Napa Napa Junction. 0 Comment
  SEINET3221128 Image available Pinus attenuata Royal D. Suttkus 1967-6-26 67- 30 -4 Napa Clearly Reserves, 7.2 miles NW of Pope Valley. Comment
  SEINET12527538  Pinus ponderosa var. ponderosa D. A. Charlet, Dene Charlet 2005-1-1 2861 Napa Robert Lois Stevenson State Park, Saint Helena Creek drainage, Mayacmas Mountains; west side of highway near trailhead, w 600 Comment
  JEPS129048  Piperia elongata Jake Ruygt 2016-6-11 6279 Napa Smittle Creek, west side Lake Berryessa. Chiles Valley 7.5' Quad. Comment
  JEPS102208  Piperia leptopetala J. Greenhouse with Jake Ruygt, Joe Callizo 2000-5-20 5007 Napa Adams Ridge. About 50 feet below Adams Ridge Rd., 1 mi from Devilshead Rd. in Hunting Creek BLM area N of Knoxville. 670 Comment
  JEPS60944  Plagiobothrys bracteatus Willis L. Jepson 1893-4-24 21164 Napa hills e of St. Helena to Conn Valley; Napa River Basin Comment
  UCD74380  Plagiobothrys bracteatus Jake Ruygt 1995-4-25 3448 Napa West end of Lewelling Lane, St. Helena. 76 Comment
  UCD120814  Plagiobothrys canescens H. Popenoe 1949-4-17 13 Napa 8 miles west of Winters. Comment
  UCD37571  Plagiobothrys canescens Beecher Crampton 1955-4-7 2437 Napa Napa County, 7.8 miles north of Monticello. Comment
  UCD164866  Plagiobothrys greenei Jake Ruygt 2012-4-21 5826 Napa Crystal Flats, west of Putah Creek. 259 Comment
  JEPS106764  Plagiobothrys nothofulvus Jake Ruygt 1996-5-19 3715 Napa West of Barnett Road near Burton Creek, (Peju Pr)Pope Valley. 201 Comment
  JEPS68063  Plagiobothrys nothofulvus W. L. Jepson 1897-5-2 21158 Napa St. Helena Comment
  UCD21504  Plagiobothrys stipitatus var. micranthus Jake Ruygt; Louise Vincenzio, Land Trust of Napa County 2002-4-22 4406 Napa Quail Ridge Reserve. 262 Comment
  UCD47947  Plagiobothrys stipitatus var. micranthus Yumee Kim; L. Bachman, P. Lalbhai 2002-4-13 1 Napa McLaughlin UC Reserve. N of Berryessa-Knoxville Road. Just SW of the old town of Knoxville. 426 Comment
  CAS-BOT-BC228491  Plagiobothrys strictus John Thomas Howell 1926-3-28 1778 Napa Myrtledale Hot Springs near Calistoga Comment
  UC353893  Plagiobothrys strictus Milo S. Baker 1927-5-1 2102 Napa near geysers; Calistoga Comment
  JEPS21208  Plagiobothrys tener var. subglaber B. O. Schreiber 1938-4-24 2499 Napa 1/2 mi nw Knoxville; Reiff Quadrangle Comment
  POM252890  Plagiobothrys tener var. subglaber B. O. Schreiber 1938-4-24 2499 Napa 0.5 mile NW of Knoxville. 610 Comment
  UCD77273  Plantago elongata Robert E. Preston 2005-3-10 2315 Napa Mouth of Long Canyon 312 Comment
  UCD48071  Plantago erecta L. Lina; E. Anderson, A. Miles, J. Waggoner, and R. Wenk 2000-4-22 2 Napa Napa County, California. McLaughlin Reserve, first ridge South of Knoxville-Berryessa Road, on Southeast side of Devilhead Road. 515 Comment
  UCD49192  Plantago erecta Anne Mini; K. McBride, S. Snow, and K. Ehmsen 2001-4-14 24 Napa Quail Ridge Reserve, SE corner of Lake Berryessa, just W of Monticello Dam, along Decker Ridge Rd., N of jct with South Decker Canyon Rd. 335 Comment
  UCD69078  Plantago erecta P. Rodriguez-Rojo 1997-5-31 Napa Lake Berryessa. Capell Creek. Base of barrens, on serpentine soils. UTM: 10SEN6659 155 Comment
  JEPS110775  Platystemon californicus Jake Ruygt 1998-4-18 3909 Napa Pope Valley, N of intersection of Pope Canyon Rd X Hardin Rd 182 Comment
  JEPS51578  Platystemon californicus W. L. Jepson 1915-4-23 6240 Napa St. Helena Comment
  UCD170190  Platystemon californicus Daniel Potter; Ninh Khuu, Ellen Dean 2015-3-22 767 Napa Knoxville Wildlife Area, east of Zim Zim Falls. 385 Comment
  CAS-BOT-BC91870  Platystemon californicus John Thomas Howell 1926-3-20 1691 Napa Near Calistoga. Comment
  JEPS110899  Plectritis brachystemon Jake Ruygt 1996-4-6 3550 Napa about 100 ft above Rector Dam on south side of lake. 146 Comment
  JEPS5112  Plectritis brachystemon W. L. Jepson 1900-3-10 515 Napa near Toland House (Howell Mountain); Howell Mountain Comment
  UC903163  Plectritis ciliosa subsp. ciliosa Ethel Crum 1937-4-19 1777 a Napa 6 mi n of Napa (Napa Range, Mount George); Napa Range, Mount George 304 Comment
  POM263492  Plectritis ciliosa subsp. insignis J. C. Roos 1939-3-27 263 Napa Pope Valley Comment
  UCD137533  Plectritis congesta J. McGrath 1963-3-8 3 Napa Lake Berryessa, 5 miles above Monticello Dam, off State Highway 128. Comment
  UCR27515  Plectritis macrocera John C. Roos 1939-3-27 263 Napa North Coast Ranges, Pope Valley Comment
  UC999821  Plectritis macrocera S. C. Dyal, A. Carter, E. Crum 1938-4-24 697 Napa Howell Mountains, Wooden Valley Grade Wooden Valley Grade; Howell Mountains, Wooden Valley Grade Comment
  CHSC84556  Pleuropogon californicus John Dittes 2003-4-5 2003 -8 Napa Inner North Coast Range; Napa Valley; approximately 1.6 air-miles north by northwest of Calistoga City Hall, approximately 0.9 air-mile northwest of confluence of Napa River and Garnett Creek, in the vicinity of the intersection of Myrtledale Road and Tubbs Lane. 121 Comment
  JEPS122934  Pleuropogon californicus Jake Ruygt 1996-3-23 3536 Napa North side of Deer Park Road between Napa River and Highway 29. Quad: Saint Helena. Comment
  UC1145108  Pleuropogon californicus Joseph P. Tracy 1938-6-6 15844 Napa between Napa City and Yountville Napa City; Napa Valley 30 Comment
  UC187257  Pleuropogon californicus Joseph P. Tracy 1903-5-18 1874 Napa near Calistoga (Napa Valley); Northern Coast Ranges, Napa Valley 91 Comment
  CAS-BOT-BC260957  Pleuropogon californicus var. californicus A. A. Heller 1924-4-12 s.n. Napa Near one of the hot springs, Calistoga Comment
  UCD90196  Pleuropogon californicus var. californicus R. Tofsrud 1951-5-20 s.n. Napa East edge of Yountville Cemetery. Comment
  CAS-BOT-BC244372  Poa annua Ira L. Wiggins 1928-3-25 2879 Napa Roadside 1.5 miles NE of Calistoga Comment
  UC73784  Poa annua J. Burtt Davy April 1902 Napa St. Helena Comment
  CAS-BOT-BC246687  Poa howellii Peter H. Raven 1950-4-15 1735 Napa Wooden Valley Grade above Napa 274 Comment
  SD58318  Poa napensis Alan A. Beetle 1946-5-7 4256 Napa Damp banks of overflow stream; two miles north of Calistoga at Myrtledale Hot Springs Comment
  UC1117808  Poa napensis A. A. Beetle 1946-5-7 4256 Napa N of Calistoga at Myrtledale Hot Springs, Napa Co. Comment
  UCD37942  Poa napensis Beecher Crampton 1962-5-8 6418 Napa Napa County, 2 miles north of Calistoga, Myrtledale Hot Springs. Comment
  JEPS122926  Poa pratensis subsp. pratensis Jake Ruygt 1990-5-6 2531 b Napa Yountville Ecological Reserve, Yountville Cross Road, Napa River. Quad: Yountville. Comment
  CDA31320  Poa secunda D. G. Kelch 2010-5-6 10 .186-B Napa Wooden Valley Road, about 5 km north of Napa/Solano county line, north of Rockville. Comment
  RSA10120  Poa secunda Joseph P. Tracy 1933-4-30 12118 Napa Near Angwin Creek on Howell Mountain 457 Comment
  UCD121143  Poa secunda Ellen Dean; G. Golden, C. Loughran, PLB 102 interns 2012-4-29 7344 Napa East of Las Posadas Rd. California Dept. of Forestry's Las Posadas State Experimental Forest, east of the town of Angwin. Ca. 0.1 mile from Fire Station, along dirt road that travels north/northeast from Station. Near small drainage that is just west of granitic grassland on north side of road. 519 Comment
  JEPS110823  Pogogyne douglasii Jake Ruygt 1994-6-7 3399 Napa Calistoga Airport 100 Comment
  JEPS62446  Pogogyne douglasii W. L. Jepson 1897-7-12 14907 Napa Pope Valley Comment
  RSA83437  Pogogyne douglasii J. T. Howell 1929-5-30 4278 Napa 3 miles from Pope Valley Store on road to Pope Creek Canyon, Napa Range Comment
  UC1239670  Pogogyne douglasii Joseph P. Tracy 1903-5-15 1863 Napa Napa Valley, near Calistoga 91 Comment
  JEPS62429  Pogogyne douglasii W. L. Jepson 1938-6-8 18898 Napa Playa Snell Valley Comment
  UC1279971  Pogogyne douglasii Peter H. Raven 1957-5-5 10749 Napa near geysers, Calistoga Comment
  UCD147465  Pogogyne serpylloides Ellen Dean; Diana Hickson 2014-4-29 8078 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 579 Comment
  JEPS51382  Polycarpon tetraphyllum W. L. Jepson 1897-5-2 Napa St. Helena; along railroad track Comment
  UC852688  Polycarpon tetraphyllum Alice Eastwood 1915-6-5 4655 Napa Calistoga, along railroad Calistoga Comment
  UCD110455  Polygala Christopher Mallek 2008-1 KX1- 2 Napa Knoxville. 593 Comment
  JEPS51315  Polygonum aviculare subsp. aviculare W. L. Jepson 1893-6-26 Napa Howell Mt. Napa Range Comment
  JEPS50584  Polygonum bolanderi Willis L. Jepson Nov 26 1895-Nov 27 1895 14792 Napa Howell Mt. Napa River Basin, La Jota Plateau Comment
  OBI10869  Polygonum bolanderi H. E. McMinn 1922-6-7 194 Napa Mt. Howell Comment
  JEPS50624  Polygonum lapathifolium Willis L. Jepson 1893-9-24 Napa Angwin's Meadows Napa River Basin, Howell Mountain Comment
  RSA309338  Polypodium californicum Edward Lee, Annetta Carter 1935-12-1 1672 Napa Sarco Creek, Howell Mountains (road from Napa to Wooden Valley) Comment
  JEPS116556  Polypodium calirhiza Jake Ruygt 2000-4-3 4229 Napa Henry Road, Henry Ranch, Carneros Valley. Napa 7.5' Quad. Comment
  CHSC102289  Polypogon interruptus Lowell Ahart 2009-10-12 16466 Napa Below the high water line of Lake Berryessa, along Capelll Creek east of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. 133 Comment
  UCD73504  Polypogon interruptus Ayzik Solomeshch 2007-5-30 s. n. Napa northwest of the city of Napa. Woolls Ranch, 1032 Mt. Veeder Road. 152 Comment
  UCD91027  Polypogon interruptus R. Tofsrud 1941-6-1 23 Napa Few miles south of Calistoga. Comment
  UCD91411  Polypogon monspeliensis M. Wiesendanger 1926-4-1 1495 Napa Somewhere. Comment
  UC34077  Polystichum californicum L. R. Heckard 1964-5-23 1363 Napa ca. 2 mi. s.w. Aetna Springs (Cleary Reserve, at foot of falls of Swartz Creek); Cleary Reserve, Swartz Creek 365 Comment
  CAS-BOT-BC72149  Polystichum californicum Rimo Bacigalupi 1924-2-22 s.n. Napa Toll house Rd. below Mt. St. Helena Comment
  JEPS116567  Polystichum dudleyi Jake Ruygt 1999-7-10 4204 b Napa Spring Street near White Sulphur Springs. Rutherford 7.5' Quad. Comment
  UCD73520  Potamogeton diversifolius Ayzik Solomeshch 2007-5-30 s. n. Napa northwest of the city of Napa. Woolls Ranch, 1032 Mt. Veeder Road. 152 Comment
  JEPS122748  Proboscidea lutea Jake Ruygt 2006-9-10 5100 Napa West side of Highway 29, south of Darms Lane. Quad: Napa. Comment
  UCD73851  Prosartes hookeri Ellen Dean; S. Rae 2008-5-21 4986 Napa Hills to the west of Hwy. 29. Private property accessed by Diamond Mountain Road. Canyon runnning east to west. 196 Comment
  JEPS112641  Prunella vulgaris var. lanceolata Jake Ruygt 1982-6-29 1346 Napa .3 mile south of Old Bale Mill on east side of HWY 29 88 Comment
  CAS-BOT-BC151178  Prunus subcordata Mrs. H. C. Cantelow 1936-3-22 1140 Napa Howell Mt. Comment
  JEPS44963  Prunus subcordata W. L. Jepson 1917-8-16 7434 Napa Howell Mountain 182 Comment
  UC1543127  Prunus subcordata Charlotte G. Nast 1936-3-27 65 Napa Childs Canyon Comment
  JEPS106912  Pseudognaphalium beneolens Jake Ruygt 1979-8-14 796 Napa Suscol Hill at HWY 29 (121) 30 Comment
  JEPS20433  Pseudognaphalium beneolens W. L. Jepson 1938-10-1 19046 Napa Mt. St. Helena Comment
  JEPS106917  Pseudognaphalium biolettii Jake Ruygt 1996-4-6 3561 b Napa East end of Rector Reservoir. 152 Comment
  CAS-BOT-BC356659  Pseudognaphalium californicum L. R. Abrams 1916-7-2 5757 Napa Near St. Helena Sanitarium Comment
  JEPS115745  Pseudognaphalium luteoalbum Lowell Ahart 2009-10-12 16421 Napa Below the high water line of Lake Berryessa, along Capell Creek east of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile soutwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winter 133 Comment
  UCD19930  Pseudognaphalium luteoalbum E. A. Dean; J Bradford, K. Mawdsley, and L Wynholds 2001-7-13 787 Napa Quail Ridge Reserve. Slough on N side of Decker Bay trail, in a dried inlet of Lake Beryessa. 128 Comment
  CAS-BOT-BC356981  Pseudognaphalium luteoalbum Peter H. Raven 1952-5-31 4161 Napa Flood plain of Rector Creek 121 Comment
  CAS-BOT-BC357566  Pseudognaphalium stramineum Peter H. Raven 1953-10-4 6368 Napa Duttons Landing 0 Comment
  RSA187448  Pseudotsuga menziesii John H. Thomas 1966-3-22 11534 Napa About 5 miles north of Calistoga as measured along highway 29 on the southeast slope of Mt. St. Helena. 610 Comment
  JEPS48289  Pseudotsuga menziesii var. menziesii W. L. Jepson 1903-9-7 2356 Napa hills w of St. Helena (York Canon Road); , York Creek Canon 548 Comment
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Oct 2 2012
  UCD133367  Pseudotsuga menziesii var. menziesii Beecher Crampton 1955-3-15 2328 Napa Calistoga. Comment
  UCD63154  Psilocarphus tenellus var. tenellus Jake Ruygt 1991-5-6 2649 Napa Wantrup Preserve, Pope Valley. 195 Comment
  UCD118095  Pteridium aquilinum var. pubescens Megan Mateo; Plant Biology 102 Collectors 2012-4-29 1 Napa Las Posadas State Experimental Forest. Near entrance gate on Las Posadas Rd. by fire station. 520 Comment
  JEPS110781  Pterostegia drymarioides Jake Ruygt 1994-3-15 3319 Napa Chiles Canyon Road about 1 mile from Chiles Valley 457 Comment
  UC1735927  Pterostegia drymarioides Dean W. Taylor 1973-1-27 2059 Napa below Montecello Dam at Lake Berryessa along Putah Creek; under rocks on the south exposure of the canyon Comment
  SEINET237202 Image available Puccinellia simplex B. Crampton 1955-3-15 2327 Napa N edge of meadow 2 mi N of Calistoga Comment
  UCD92252  Puccinellia simplex R. Tofsrud 1949-4-1 s.n. Napa Calistoga, Myrtledale Hot Springs. Comment
  UCR141075  Puccinellia simplex Beecher Crampton 1955-3-15 2327 Napa North Coast Range, 2 miles north of Calistoga, near Myrtledale Hot Springs 107 Comment
  CAS-BOT-BC362359  Pyrrocoma racemosa var. racemosa Milo S. Baker 1933-9-9 7535 Napa Near Calistoga Geyser Comment
  UC762610  Pyrrocoma racemosa var. racemosa R. F. Hoover 1941-8-24 5579 Napa near Calistoga; Myrtledale Hot Springs Comment
  JEPS116530  Quercus X morehus Jake Ruygt 2003-5-5 4517 Napa Upper end of Long Canyon. Knoxville 7.5' Quad. Comment
  UC1010753  Quercus X morehus Peter H. Raven 1951-6-26 3086 Napa Cappell Valley to Wooden Vallen 304 Comment
  UC518957  Quercus X morehus David D. Keck 1933-5-29 2346 Napa Pope Creek Bridge Pope Creek Canyon (s of Walters Springs, s wall of canyon) Comment
  CAS-BOT-BC61808  Quercus agrifolia John Thomas Howell 1930-10-19 5617 Napa Canyon bottom, 3 miles from Aetna Springs on Butts canyon road to Middletown Comment
  CLARK-A1528-2916  Quercus agrifolia John C. Roos 1939-4-16 283 Napa Angwin Comment
  UCD149562  Quercus agrifolia G. Ledyard Stebbins 1994-10-5 s.n. Napa Lake Berryessa. 1 mile northwest of the junction of Spanish Flat and Route 128. Comment
  UCD45014  Quercus agrifolia Frank W. Gould 1939-4-6 595 Napa Five miles east of Napa, grove of trees in Arctostaphylos-Ceanothus chaparral. Trees 20 to 30 feet tall. Comment
  UCD45140  Quercus agrifolia W. C. Overton Jr. 1980-7-13 s.n. Napa From a population of this speciesm Q. wislizenii, and a few hybrids; along south bank of Eticuera Creek ca. 1 1/2 road miles north of Lake Berryessa, Napa Co., Calif.; elev. 580 feet. Location is to the west of the Berryessa-Knoxville Road (at the 20.00 mile marker) where the creek turns sharply to the NW, away from the road. (Extends the range of Q. agrifolia in this area by ca. 15 miles to the NE of the limits shown in Griffin and Critchfield, 1972). No. 1 of 4 sheets. 176 Comment
  RSA608861  Quercus agrifolia var. agrifolia Louis C. Wheeler 1963-9-16 8392 Napa Moore Creek Prospect, E of St. Helena. Comment
  UCD149599  Quercus agrifolia var. agrifolia Stephen P. Rae; Ayzik Solomeshch 2006-5-30 s.n. Napa On the north side of Soscol Ridge, south of the city of Napa, ca. 3/4 km east of Highway 121, on the south side of Soscol Creek. 25 Comment
  UCD14829  Quercus berberidifolia John M. Tucker 1950-11-12 2014 -2 Napa California, Napa Co.; Highway 28, 7.7 mi. (by road) west of junction with Highway 37; Comment
  UCD45210  Quercus berberidifolia G. L. Stebbins Jr. 1948-5-9 3938 Napa South-facing slope, on edge of serpentine formation; Capell Canyon, beside road from Monticello to Rutherford, 9 miles southeast of Monticello, Napa County, California. Comment
  SEINET3140220  Quercus chasei Unknown 1994-10-29 sn Napa Mt. George, north-ne. side ca. 400m Comment
  CAS-BOT-BC62462  Quercus chrysolepis John Thomas Howell 1926-10-3 2201 Napa Mt. St. Helena Comment
  UC1135373  Quercus chrysolepis J. B. Spring, R. W. Lundh 1932-6-27 89 Napa 1.5 mi s and 0.25 mi e McCormack Ranch; Santa Rosa Quad. 548 Comment
  UCD120918  Quercus chrysolepis Ellen Dean; G. Golden, C. Loughran, PLB 102 interns 2012-4-29 7339 Napa East of Las Posadas Rd. California Dept. of Forestry's Las Posadas State Experimental Forest, east of the town of Angwin. Ca. 0.1 mile from Fire Station, along dirt road that travels north/northeast from Station. North side of road. 519 Comment
  CAS-BOT-BC85940  Quercus douglasii Peter H. Raven 1953-4-2 5277 Napa hills of Tulucay Creek 243 Comment
  JEPS37393  Quercus douglasii Willis L. Jepson 1901-8-6 1729 Napa Howell Mt. grade Napa River Basin Comment
  UC993143  Quercus douglasii J. M. Tucker 1948-9-5 1868 Napa ca 0.25 mi e Sonoma-Napa County line (s side of Highway 12) Comment
  UCD121176  Quercus douglasii Ellen Dean; G. Golden, C. Loughran, PLB 102 interns 2012-5-5 7356 Napa East of Las Posadas Rd. California Dept. of Forestry's Las Posadas State Experimental Forest, east of the town of Angwin. NE Part of property. Ridge to the north of Recreation Flat area along undeveloped road. 416 Comment
  UCD45739  Quercus douglasii John M. Tucker 1954-9-23 2755 Napa East side of Highway 37 .1 mile south of junction with Wooden Valley Road (about 9.5 miles north-east of Napa), Napa County, California. Comment
  UCD45747  Quercus douglasii John M. Tucker; G. L. Stebbins 1950-11-5 2008 16 Napa California, Napa Co.; ca. 2 mi. north of St. Helena, beside road to Howell Mountain; growing with both parental species. Comment
  UCD48036  Quercus douglasii A. Atamian; C. Owens, R. Brush, S. Olmsted, M. Furuyama 2000-4-29 18 Napa Border of Yolo and Napa County, McLaughlin Reserve, one as the crow flies mile north of the old town of Knoxville, 250 meters east of old road in an oak woodland, near a burned area (burned Oct 1999). 640 Comment
  SEINET12034333  Quercus douglasii C. G. Pringle 1882-1 s.n. Napa Calistoga Comment
  CAS-BOT-BC86435  Quercus dumosa John Thomas Howell 1933-8-27 11647 Napa E of Chiles Valley on road to Winters, Napa Range Comment
  CAS-BOT-BC79832  Quercus durata John Thomas Howell 1933-8-27 11642 Napa Sage Canyon, Napa range Comment
  RSA150  Quercus durata J. T. Howell 1927-8-24 685 Napa Near Walter's Spring, Napa Range. Comment
  SEINET234414  Quercus durata John Tucker 1950-11-12 2014 -20 Napa Hwy 28 7.7 road mi W of junction with Hwy 37; SE-facing slope above Sage Creek Comment
  UCD14822  Quercus durata John M. Tucker; with G. L. Stebbins 1950-11-5 2011 -18 Napa California, Napa Co.; below Conn Valley Dam, Comment
  UCD14824  Quercus durata John M. Tucker; with G. L. Stebbins 1950-11-5 2011 -20 Napa California, Napa Co.; below Conn Valley Dam, Comment
  UCD14825  Quercus durata John M. Tucker; with G. L. Stebbins 1950-11-5 2011 -21 Napa California, Napa Co.; below Conn Valley Dam, Comment
  UCD14838  Quercus durata John M. Tucker 1950-11-12 2014 -16 Napa California, Napa Co.; Highway 28, 7.7 mi. (by road) west of junction with Highway 37; Comment
  UCD45978  Quercus durata G. F. Hrusa; G. L. Stebbins 1994-3-11 11602 Napa Rhyolitic ash flat on Ink Grade approx. 2 miles N of Angwin. 520 Comment
  HSC71371  Quercus durata var. durata J. P. Smith, J. O. Sawyer 1970-5-17 3784 Napa 8 mi. N of Pope Valley Comment
  HSC96007  Quercus durata var. durata D. Sanchez-Mata 1996-6-22 Napa Capell Valley, in Capell Creek 380 Comment
  UCD45909  Quercus durata var. durata Thomas Morley 1941-5-11 130 B Napa On north bank of Butts Creek 1/4 mile west of its junction with Putah Creek, Napa County. Elevation 480 feet. 146 Comment
  UCD45943  Quercus durata var. durata Thomas Morley 1941-5-11 129 B Napa On north bank of Butts Creek 1/4 mile west of its junction with Putah Creek, Napa County. Elevation 480 feet. 146 Comment
  JEPS116535  Quercus garryana Jake Ruygt 1984-3-28 1510 Napa West of end of Whitehall Lane. Rutherford 7.5' Quad. Comment
  UCD148750  Quercus garryana Jake Ruygt 1999-5-14 4152 Napa Napa County; Lake Hinman, west of Yountville Veteran's Home. 109 Comment
  UCD46174  Quercus garryana J. M. Tucker 1954-9-23 2754 Napa (X Q. douglasii H. and A.) Slope on Mt. St. Helena, overlooking Highway 29, 5.2 miles (by road) north of the city limits sign on north side of Calistoga, Napa County, California. Comment
  UCD46206  Quercus garryana John M. Tucker 1950-11-5 2005 1 Napa California, Napa Co.; near Angwin, on Howell Mountain, beside road from Pope Valley. (Collections made from 8 trees). Comment
  UCD14549  Quercus garryana var. garryana John M. Tucker; and G. L. Stebbins 1950-11-5 2008 -19 Napa California, Napa Co.; ca. 2 mi. north of St. Helena, beside road to Howell Mountain; Comment
  UCD46061  Quercus garryana var. garryana J. M. Tucker 1952-9-20 2626 Napa Tree on high bank above Highway 29, Mt. St. Helena, 5.2 miles (by road) north of 'city limits' sign on north side of Calistoga, Napa County, California. Comment
  UCD46082  Quercus garryana var. garryana W. L. Jepson 1916-8-6 6833 Napa Howell Mt. Comment
  UCD46092  Quercus garryana var. garryana J. M Tucker 1952-4-22 2360 Napa Tree on high bank above Highway 29, Mt. St. Helena, 5.2 miles (by road) north of 'city limits' sign on north side of Calistoga, Napa County, California. Comment
  UCD46099  Quercus garryana var. garryana J. M. Tucker 1966-4-17 3938 Napa Beside Dry Creek, 0.2 mile west of junction of Trinity (Glen Ellen to Oakville) Road and Mt. Veeder Road, 3.4 miles (by road) southwest of Oakville, Napa County, California. Comment
  CAS-BOT-BC105294  Quercus kelloggii Peter H. Raven 1951-8-20 3861 Napa near Lokoya 548 Comment
  LA205302  Quercus kelloggii J. A. Ewan; 1933-9-17 8012 Napa trail above Mt St. Helena Inn Comment
  UC1196356  Quercus kelloggii J. P. Tracy 1902-5-22 1620 Napa 3-4 mi e Angwin's; Howell Mountain, Head of Moores Creek 365 Comment
  UCD14957  Quercus kelloggii John M. Tucker 1976-10-24 4381 Napa California, Napa County: Beside Dry Creek Road, 0.6 mi. east of junction with Wall Road, and 5.2 mi. (by road) southwest of Oakville. Comment
  UCD46610  Quercus kelloggii D. Q. Cavagnaro 1963-10-18 225 Napa At Napa Valley Ranch Club road junction, 2.8 miles west of Moskowite Corners, Napa County, California. 30 Comment
  UCD49046  Quercus kelloggii Anne Mini; K. McBride, S. Snow, and K. Ehmsen 2001-4-14 18 Napa Quail Ridge Reserve, SE corner of Lake Berryessa, just W of Monticello Dam, Decker Canyon, along South Decker Canyon Rd., just S of jct with Cut-Off Rd., W side of creek bed. 167 Comment
  CAS-BOT-BC62877  Quercus lobata Peter H. Raven 1952-8-28 5159 Napa Near Napa Soda Springs 228 Comment
  CAS-BOT-BC62883  Quercus lobata H. E. McMinn 1922-6-8 205 Napa Pope Creek Canyon Comment
  SACT002665  Quercus lobata John Willoughby 1979-5-25 Napa About 1 mile south of Signal Hill just below and to the west of the Blue Ridge, in foothill woodland on the north side of the flat. 609.6 Comment
  UCD46832  Quercus lobata Thomas Morley 1941-5-11 122 Napa At Lombard's Ranch, west side of Putah Creek just above junction with Butts Creek. 140 Comment
  UCD48374  Quercus lobata Kook-Hyun Chung; C. Ineich, J. Deusterman, M. Hauselt 2001-4-28 19 Napa Quail Ridge Reserve, SE corner of Lake Berryessa just W of Monticello Dam, 3 m from end of Decker Bay Trail and 20 m from edge of Lake Berryessa. 146 Comment
  CLARK-A1528-2901  Quercus lobata John C. Roos 1939-3-27 282 Napa Angwin Comment
  CAS-BOT-BC104839  Quercus wislizeni G. F. Ferris 1920-10-1 s.n. Napa Napa Comment
  CAS-BOT-BC104979  Quercus wislizeni John Thomas Howell 1926-3-28 1764 Napa Trail to top of Mt. St. Helena Comment
  CAS-BOT-BC104982  Quercus wislizeni Alice Eastwood 1918-5-1 6866 Napa Mt. St. Helena Comment
  CLARK-A1528-2913  Quercus wislizeni John C. Roos 1939-4-16 284 Napa Angwin Comment
  UCD49054  Quercus wislizeni L. Wynholds; S. Du Plessis, B. Erickson, and C. Malleck 2001-4-14 9 Napa SW end of Lake Berryessa, Quail Ridge Reserve, along stream that runs along the E side of South Decker Canyon Rd. S of North Decker Canyon Rd. and N of the Cut-Off Rd., 2 ft. from stream. 152 Comment
  JEPS110888  Ranunculus californicus Jake Ruygt 1982-2-11 1095 Napa Suscol plain near Kaiser Steel (Rocktram 4 Comment
  UC917102  Ranunculus californicus D. C. Finfrock 1950-4-2 15 Napa 2 mi from St. Helena (on Pope Valley Rd) Comment
  CAS-BOT-BC378489  Ranunculus californicus var. californicus Elsa G. Ruckert 1960-4-24 115 Napa 6495 Dry Creek Road; road leading in to property and meadows to left and right 365 Comment
  POM225341  Ranunculus hebecarpus J. T. Howell 1931-4-2 6064 Napa Wooden Valley Grade, 5 miles east of Napa Comment
  JEPS110874  Ranunculus lobbii Jake Ruygt 1992-3-18 2854 Napa Wild Horse Valley Ranch north of the polo field 472 Comment
  JEPS110882  Ranunculus lobbii Jake Ruygt 1996-3-23 3529 Napa Wantrop Wildlife Sanctuary, Pope Valley 280 Comment
  UC136198  Ranunculus lobbii C. F. Baker 1903-4-19 1997 Napa St. Helena Comment
  UCD159791  Ranunculus muricatus James A. Neilson Jr. 1975-4-13 3160 Napa Soda Canyon Road, near outlet of canyon. 60 Comment
  RSA638890  Ranunculus muricatus J. A. J.ohnston 1995-5-7 3 Napa Hwy 128, 1 mile W of Markley Cove on Lake Berryessa. 38Y'30'N, 122Y'0'W, alt 700m 700 Comment
  JEPS110879  Ranunculus occidentalis Jake Ruygt 1980-4-4 825 Napa Foss Valley 445 Comment
  JEPS55170  Ranunculus occidentalis Willis L. Jepson 1893-3-13 Napa hills e St. Helena; Napa River Basin Comment
  JEPS60702  Ranunculus occidentalis W. L. Jepson 1920-5-25 9044 Napa Knoxville Ridge; ne Napa Co. 670 Comment
  UCD96774  Ranunculus occidentalis D. C. Finfrock 1950-4-2 15 Napa 2 miles from St. Helena on Pope Valley Road. Comment
  UC511333  Ranunculus occidentalis Lyman Benson 1931-2-26 2600 Napa Mt. St. Helena Hwy Mayacamas Mt. Range, Napa Valley Watershed (near summit) 548 Comment
  UCD96938  Ranunculus occidentalis H. Popenoe 1949-4-17 9 Napa 17 miles from Winters, at entrance to Monticello Valley. Comment
  UCD169879  Ranunculus occidentalis var. occidentalis Daniel Potter; N Khuu, C Donkers, A Yip, M Simon 2015-2-28 719 Napa Knoxville Wildlife Area. 239 Comment
  UCD170810  Ranunculus occidentalis var. occidentalis 2018-4-28 4 Napa Cedar Roughs Wildlife Area, to the west of Lake Berryessa, on the south side of Pope Creek and Pope Canyon Road. Along Dollarhide Road (undeveloped road/trail) on the west side of Maxwell Creek. 160 Comment
  SEINET5718622 Image available Ranunculus occidentalis var. occidentalis Gary W. Elmstrom 1965-1 5 Napa Dollarhide Road, ca. 3.5 miles east of Pope Valley.; Pope Valley 274 Comment
  JEPS110992  Ranunculus orthorhynchus Jake Ruygt 1982-2-16 1100 Napa .3 mile north of Chimney Rock Golf Course on Silverado T 20 Comment
  UC162832  Ranunculus orthorhynchus var. bloomeri Joseph P. Tracy 1903-5-15 1846 Napa near Calistoga; Northern Coast Ranges, Napa Valley 91 Comment
  JEPS110989  Ranunculus pusillus Jake Ruygt 1990-5-5 2525 Napa Johnsons Meadow, Wild Horse Valley Ranch 420 Comment
  POM306532  Ranunculus pusillus A. M. Ottley 1921-5-6 1327 Napa San Francisco Bay area, N of St. Helena, Wet meadow Comment
  CAS-BOT-BC427555  Reseda luteola Betty H. Johnson 1958-6-20 647 Napa Near Mt. Mill House, 6.4 mi. S.-W. of Middletown Comment
  CAS-BOT-BC427556  Reseda luteola Thomas H. Kearney 1948-8-1 s.n. Napa Near Napa Comment
  SD175803  Rhagadiolus stellatus D. G. Kelch 2002-4-10 02 1 Napa Redwood Road, west of Napa city limits. 60 Comment
  RSA7786  Rhamnus californica Carl B. Wolf 1928-5-4 1856 Napa Upper slopes of Mount St. Helena. Comment
  UCR148776  Rhamnus californica J. Good 1998-6-6 33 Napa hwy 128; 3 mi west of Monticello dam and then up the dirt road behind Markley Cove 50' 146 Comment
  JEPS42003  Rhamnus crocea W. L. Jepson 1915-12-5 6587 Napa Adam-and-Eve Ridge Howell Mt. Comment
  RSA133654  Rhamnus crocea John H. Thomas 1955-5-21 5110 Napa Sarco Creek drainage, near State Hwy No. 37 about 6 miles from Napa. 244 Comment
  UC592787  Rhamnus tomentella subsp. tomentella unknown 1928-2-25 1509 Napa 3 mi n summit of the Mt. St. Helena grade (near Lake-Napa Cos. line) Comment
  JEPS58750  Rhododendron occidentale W. L. Jepson 1897-7-13 14672 Napa Butts Canyon, near Napa Co. Comment
  SBBG50855  Rhododendron occidentale R. Beaver 1965-5-1 149 Napa 14 mi N of jct of Hwy 121 and 128 Comment
  UCD20698  Rhododendron occidentale A. T. Leiser 1985-6-3 BC 8 Napa Border of Lake County. 0.5 miles N. of Napa/Lake Cos. Line, Butts Creek SW of Butts Canyon Rd. Population extends .5 mile up drainage. Comment
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Sep 28 2012
  UCD20704  Rhododendron occidentale A. T. Leiser 1984-10-27 RLS 2 Napa Robert Louis Stevenson State Park (Hwy 29 N. from Calistoga) along creek immediately S. of trail, near the old mine entrance. Within 10 ft of creek bed. Comment
  UCD20765  Rhododendron occidentale M. Bibbo; with E. Dean and K. Mawdsley 2002-8-29 115 Napa McLaughlin UC Reserve. S of the reserve near Hunting Creek campground where Hunting Creek Rd. crosses the Creek. Along Hunting Creek 100 yards upstream of junction with Sensitive Plant Canyon. 624 Comment
  UCD68033  Rhododendron occidentale Allen Barnes 1976-6-1 24 Napa On highway 128, 3.9 miles Northwest of Moskowite Corners, approximately 200 yds West of roadside. Found on canyon slopes, in a moist area near creek, common but not numerous. A large bush, 3-5 ft. high. Flowers, creamy yellow and sticky. Comment
  CAS-BOT-BC200648  Rhus aromatica Mrs. Clara Hunt 1921-4-1 s.n. Napa St. Helena Comment
  JEPS129173  Rhus aromatica Jake Ruygt 2016-3-14 6043 Napa Sutro Ranch, west side of Atlas Peak. Yountville 7.5' Quad. Comment
  CAS-BOT-BC92978  Ribes californicum var. californicum Peter H. Raven 1951-5-20 285 b Napa Hills west Oakville. 548 Comment
  JEPS129079  Ribes californicum var. californicum Jake Ruygt 2016-4-5 6176 Napa Gunn Ranch, E side Lake Berryessa. Lake Berryessa 7.5' Quad. Comment
  CAS-BOT-BC168938  Ribes malvaceum Peter H. Raven 1953-2-21 5195 Napa Steel Canyon 213 Comment
  CDA11151  Ribes malvaceum G. F. Hrusa, G. L. Stebbins, J. Callizo 1993-12-3 11562 Napa North Coast Biodiversity Arena; N side of Mt. George, above Sarco Creek, 10 m. NE of city of Napa. Comment
  UCD33890  Ribes malvaceum Beecher Crampton 1975-2-17 9106 Napa Napa County, 1/2 mile west of Monticello Dam. Comment
  UCD167061  Ribes sanguineum var. glutinosum Jake Ruygt 1999-5-18 4165 Napa Skyline Park, along Marie Creek Road near lake. 244 Comment
  UCD167010  Ribes victoris Jake Ruygt 1980-5-4 874 Napa Van Ness Canyon. 609 Comment
  RSA84971  Ribes victoris var. greenianum J. T. Howell 1940-5-19 15450 Napa Upper St. Helena Creek. Comment
  JEPS34906  Rigiopappus leptocladus Joseph P. Tracy 1938-6-5 15827 Napa on hills at head Moore's Creek (3-4 mi e of Angwin's); Northern Coast Ranges, Howell Mountain, hills at head of Moo 365 Comment
  CAS-BOT-BC363049  Rigiopappus leptocladus David D. Keck 1933-5-29 2341 Napa Pope Creek Bridge, south of Walters Springs. South wall of Pope Creek Canyon Comment
  CAS-BOT-BC340993  Robinia pseudoacacia Alice Eastwood 1915-6-5 s.n. Napa Calistoga Comment
  SEINET5763310 Image available Rorippa curvisiliqua E. L. Greene 1893-1 s.n. Napa Dry Creek Comment
  UC10724  Rorippa curvisiliqua Willis L. Jepson 1893-4-27 Napa Veteran's Home , Veteran's Home (Napa River Basin) Comment
  CHSC103005  Rorippa curvisiliqua var. orientalis Lowell Ahart 2009-10-12 16434 Napa Below the high water line of Lake Berryessa, along Capell Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile soutwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. 133 Comment
  CAS-BOT-BC147533  Rosa californica John Thomas Howell 1933-8-27 11649 Napa Chiles Valley, Napa Range Comment
  CAS-BOT-BC148155  Rosa gymnocarpa Peter H. Raven 1952-5-26 4049 Napa Howell Mt. 426 Comment
  CAS-BOT-BC148156  Rosa gymnocarpa Peter H. Raven 1964-5-9 19055 Napa Edge of redwood grove along dirt road 2 miles west of Aetna Springs Comment
  JEPS45680  Rosa gymnocarpa W. L. Jepson 1894-10-14 13891 Napa sw Calistoga; Rebecca Ranch grade Comment
  UC963910  Rosa gymnocarpa Milo S. Baker 1947-7-7 11860 Napa e slope of mt. near hiway at St. Andrew's Camp; Mt. St. Helena 609 Comment
  JEPS122764  Rotala ramosior Jake Ruygt 2009-7-18 5461 Napa Wild Lake. Quad: St. Helena. Comment
  UCD17677  Rubus H. Olmo; T. S. Mallah 1953-4-3 53 34 Napa California. Napa County: 0.5 miles south of Redwood Lodge along Highway 128. Near Rt. 1B X 234. Comment
  CAS-BOT-BC156589  Rubus bifrons Peter H. Raven 1952-5-29 4075 Napa Napa River 1 mi. n. Napa 60 Comment
  UCD113843  Rubus parviflorus K. Esau 1920-4-19 s.n. Napa Calistoga. Comment
  JEPS110651  Rubus ursinus Jake Ruygt 1979-4-17 521 Napa Napa River at Oak Knoll Ave. 15 Comment
  UCD114003  Rubus ursinus Heidi E. M. Dobson 1978-4-8 303 Napa East slope of Mt. Veeder. Comment
  JEPS110753  Rumex salicifolius var. salicifolius Jake Ruygt 1996-5-4 3653 Napa Butts Canyon Road at James Creek Road; SE field. 205 Comment
  CAS-BOT-BC434079  Rumex transitorius Kate E. Phelps 1932-9-1 s.n. Napa Myrtledale Hot Springs near Calistoga Comment
  UC1197460  Rupertia physodes Joseph P. Tracy 1899-6-17 393 Napa on hills at head Moore's Creek (3-4 mi e of Angwin's); Northern Coast Ranges, Howell Mountain 365 Comment
  CDA19126  Ruppia maritima D. Dannenberg 2001-6-14 PDR 1103335 Napa N side of American Canyon Dump at end of Eucalyptus Dr. 0 Comment
  UCD54296  Saccharum ravennae Jeffrey L. Firestone 2004-7-14 1 Napa McLaughlin Reserve; precisely at the intersections of Sections 1,2,11,12 of Range 5W, Township 11N. Alternately near waterline of holding ponds at western base of site 5 waste rockpile, to the southwest of the Homestake main pit and the former Manhattan mine site. Comment
  UCD149605  Sagina apetala Stephen P. Rae; Ayzik Solomeshch 2006-5-30 s.n. Napa On the north side of Soscol Ridge, south of the city of Napa, ca. 3/4 km east of Highway 121, on the south side of Soscol Creek. 25 Comment
  UCD167161  Sagina apetala Jake Ruygt 2015-3-23 6050 Napa Missimer - Snell Valley Preserve. 178 Comment
  JEPS51081  Sagina decumbens subsp. occidentalis Willis L. Jepson 1893-4-26 Napa Oakville Napa R. Basin, Oakville Comment
  UC1103529  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1902-5-16 1503 Napa 3 - 4 mi. e. Angwin's (hills at head of Moore's Creek); Northern Coast Ranges, Howell Mt., Moore's Creek 365 Comment
  UCD164755  Sagina decumbens subsp. occidentalis Jake Ruygt 2014-5-19 5951 Napa Sutro Ranch, Atlas Peak. 610 Comment
  POM203578  Salix I. L. Wiggins 1932-3-12 5752 Napa N fork of the Napa River. 1 mile N of Calistoga. Comment
  CAS-BOT-BC103227  Salix bonplandiana Peter H. Raven 1952-9-14 5177 Napa Conn Creek e. of Yountville 91 Comment
  CAS-BOT-BC108660  Salix breweri David D. Keck 1931-4-3 1075 Napa 5 miles NE of Aetna Springs, along Butts Creek, northern Napa County Comment
  CAS-BOT-BC108664  Salix breweri John Thomas Howell 1930-10-19 5629 Napa Stream bottom, 5 miles from Aetna Springs on Butts Canyon road to Middletown, near Napa-Lake Co. line. Comment
  CHSC108725  Salix breweri B. Castro; L. P. Janeway 2002-5-12 1369 Napa Inner North Coast Ranges. CA 0.8 mi NW of Cedar Valley, at crossing of Cedar Creek, along the road from Devilhead Road. 536 Comment
  POM219054  Salix breweri H. P. Bracelin 1931-4-17 253 Napa Butt Canyon. Between Pope Springs and Aetna Valley. 300 Comment
  SJSU186  Salix breweri Mrs. H. P. Bracelin 1931-4-17 253 Napa Butt Canyon between Pope Springs & Aetna Valley 335 Comment
  UCD110949  Salix exigua Bob Wych 1975-5-29 37 Napa Wragg Canyon Road, 0.2 mile north of intersection with State Highway 128. Comment
  RSA92782  Salix exigua Peter H. Raven 1952-5-31 4109 Napa Strand of Conn Creek. E of Yountville. 46 Comment
  CAS-BOT-BC108193  Salix hindsiana Ira L. Wiggins 1932-3-12 5755 Napa North fork of the Napa River, 1 mi. N. of Calistoga Comment
  CAS-BOT-BC108195  Salix hindsiana Bracelin; Ball; Parks 1931-4-21 33 Napa On main highway in roadside ditch, about 2 km. W. of Calistoga. Comment
  CAS-BOT-BC108196  Salix hindsiana Bracelin; Ball; Parks 1931-4-21 33 Napa About 2 km. W. of Calistoga, on main highway in roadside ditch. Comment
  UCD164803  Salix laevigata Jake Ruygt 1995-3-21 3408 Napa End of Niebaum Lane, Bear Canyon. 89 Comment
  CAS-BOT-BC125150  Salix lasiandra var. lasiandra Ira L. Wiggins 1932-3-12 5750 Napa North fork of the Napa River, 1 mi. N. of Calistoga Comment
  CAS-BOT-BC539357  Salix lasiandra var. lasiandra Jake Ruygt 2009-3-21 5388 Napa Larkmead Lane, S side of Napa River 85 Comment
  JEPS13832  Salix lasiolepis Willis L. Jepson 1903-9-6 2346 Napa St. Helena; Napa River Basin Comment
  CAS-BOT-BC124413  Salix lasiolepis var. lasiolepis Peter H. Raven 1951-6-26 3044 Napa Sarco Creek e. of Napa 60 Comment
  CAS-BOT-BC124415  Salix lasiolepis var. lasiolepis Peter H. Raven 1954-2-22 6418 Napa flood plain of White Sulphur Creek 106 Comment
  CAS-BOT-BC124416  Salix lasiolepis var. lasiolepis C. R. Quick; J. A. Vogtmann 1933-3-2 s.n. Napa Dry Creek Road, approximately 15 miles from Napa Comment
  JEPS120367  Salvia argentea Jake Ruygt 2001-7-2 4319 Napa On private road south of Lake Hennessey boat-ramp. Yountville 7.5' Quad. Comment
  UCD144655  Salvia columbariae Alice Warrick 2008-4-5 s.n. Napa Quail Ridge UC Reserve. 2005 Pleasure Fire burn site, along west loop road, north of Decker canyon. 243 Comment
  CAS-BOT-BC238595  Sambucus nigra subsp. caerulea Peter H. Raven 1950-6-20 2329 Napa St. Helena to Conn Valley, Napa Range Comment
  SBBG7384  Sambucus nigra subsp. caerulea H. and M. Dearing 1939-5-3 3668 Napa Rutherford-Sage Cyn Rd Comment
  UCD102769  Sambucus nigra subsp. caerulea Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-22 s.n. Napa Berryessa-Knoxville Road. Between Moskowite Corner and Spanish Flat. 410 Comment
  UCD19954  Sanicula bipinnata E. A. Dean; Virginia Boucher 2002-2-28 906 Napa Quail Ridge Reserve. Where upper and lower trails meet, just S of powerlines near ridge tip. 274 Comment
  UCD169881  Sanicula bipinnatifida Daniel Potter; N Khuu, C Donkers, A Yip, M Simon 2015-2-28 721 Napa Knoxville Wildlife Area. 352 Comment
  SBBG5259  Sanicula bipinnatifida H. and M. Dearing 1939-3-2 3255 Napa near Napa Comment
  UCD81387  Sanicula crassicaulis M. Wiesendanger 1927-5-4 680 Napa Near Monticello. Comment
  JEPS43798  Saxifraga californica Mrs. Mary Van E. Ferguson 1919-4-13 211 Napa near Atlas Comment
  RSA10650  Saxifraga californica Carl B. Wolf 1928-5-3 1839 Napa Summit of Mount St. Helena Grade, north of Calistoga. Comment
  UC11762  Saxifraga californica Willis L. Jepson 1893-5-2 13478 Napa Pope Valley Grade from Calistoga; Napa River Basin, Pope Valley Grade Comment
  UC917158  Scandix pecten-veneris C. G. Baughn 1949-4-24 20 Napa 3 1/4 mi nw of Cordelia (State Highway 12); State Highway 12 Comment
  UCD118610  Scandix pecten-veneris William Goss; Plant Biology 102 Collectors 2012-5-5 6 Napa Las Posadas State Experimental Forest. Northeastern part of property, Recreation Flat. 388 Comment
  UCD128134  Scandix pecten-veneris R. Tofsrud Date Unknown s.n. Napa Exact location unknown. Comment
  CAS-BOT-BC111446  Schoenoplectus californicus Peter Raven 1951-9-9 3901 Napa Slaugterhouse Pt., Napa River 0 Comment
  RSA366080  Schoenoplectus robustus J. T. Howell 1932-10-8 10807 Napa Tidal flat at Cuttings Wharf. Comment
  JEPS121367  Scirpus acutus var. occidentalis Jake Ruygt 1993-4-20 3215 Napa Yountville Ecological Reserve, Youngville Cross Rd. Comment
  JEPS121368  Scirpus acutus var. occidentalis Jake Ruygt 1988-5-4 2184 Napa .5 miles NE of Flosden Rd. intersection with American Cyn Rd. Comment
  JEPS121372  Scirpus pungens var. longispicatus Jake Ruygt 1986-7-5 1866 Napa Hunting Creek near campground Comment
  JEPS110741  Scrophularia californica subsp. californica Jake Ruygt 2000-4-3 4228 Napa Henry Road, Carneros Valley. 167 Comment
  SEINET9303026  Scutellaria californica Ellen Dean, Bibbo, Mark 2002-6-17 1099 Napa Quail Ridge UC Reserve. SE corner of Lake Berrysea, just W of Monticello Dam. South Decker Canyon Rd, just S of jct with Cut Off Rd. Shady drainage with Quercus douglasii, Quercus wislizeni, and Symphoricarpos. Comment
  POM63106  Scutellaria siphocampyloides C. F. Baker 1903-5-8 2970 Napa Knoxville. Comment
  CDA11429  Scutellaria tuberosa G. F. Hrusa, M. Tu 1995-5-6 12152 Napa North Coast Biodiversity Arena; Ink Grade approx 1 m. below intersection with Howell Mtn Rd. Comment
  UCD54560  Scutellaria tuberosa K. Walker; PLB 102 2006-5-13 1 Napa Quail Ridge Reserve, West Ashley Rd. One-half mile northwest of Laurel Creek. 208 Comment
  CAS-BOT-BC417001  Sedella pumila Belle Richardson Jackson 1923-5-10 s.n. Napa unspecified Comment
  RSA201806  Sedella pumila W. R. Russell 1967-5-10 s.n. Napa Just N of Soscol House restaurant, ca. 2 miles S of Napa State Hospital, State Hwy 29. Comment
  UCD164852  Sedella pumila Jake Ruygt 2012-4-21 5822 Napa Crystal Flats, west of Putah Creek. 222 Comment
  CAS-BOT-BC63831  Sedum spathulifolium Alice Eastwood 1915-6-6 4692 Napa Mt. St. Helena Comment
  CAS-BOT-BC63837  Sedum spathulifolium John Thomas Howell 1929-5-30 4280 Napa Sage Canyon, Napa Range Comment
  CAS-BOT-BC69710  Selaginella wallacei John H. Thomas 1955-5-21 5103 Napa Sarco Creek drainage, near State Highway No. 37, about 6 mi. from Napa. 274 Comment
  CAS-BOT-BC69715  Selaginella wallacei Alice Eastwood s.n. Napa Mt. St. Helena. Comment
  POM197729  Selaginella wallacei John Thomas Howell 1930-3-23 4557 Napa E of Mt St Helena Inn, near Mt St Helena. Comment
  POM22500  Selaginella wallacei C. F. Baker 1903-4-20 2746 Napa Mt. St. Helena. Comment
  RSA670107  Selaginella wallacei James French 1969-2-15 s.n. Napa 7 miles NE of Napa on State Hwy 121. Comment
  UCD118563  Senecio aronicoides Kaya MacMillen; Plant Biology 102 Collectors 2012-4-29 4 Napa Las Posadas State Experimental Forest. NE of fire station on south side of undeveloped road near dry ditch. 519 Comment
  UCD161781  Senecio hydrophilus Jake Ruygt 1999-6-8 4180 Napa Fagan Slough. 1 Comment
  CAS-BOT-BC364594  Senecio vulgaris John H. Thomas 1955-5-21 5122 A Napa Sarco Creek drainage, near State Highway No. 37, about 6 miles from Napa 274 Comment
  CDA11136  Senecio vulgaris G. F. Hrusa, G. L. Stebbins, H. Townsend 1994-4-25 11826 Napa North Coast Biodiversity Arena; Mt. George Comment
  CAS-BOT-BC85825  Sequoia sempervirens Peter H. Raven 1964-5-9 19072 Napa Grove along dirt road 2 miles west of Aetna Springs Comment
  UC1198398  Sidalcea diploscypha J. P. Tracy 1899-6-14 381 Napa 3-4 mi e Angwin's (head of Moore's Creek, Howell Mountain); head of Moore's Creek, Howell Mountain 365 Comment
  UCD167286  Sidalcea diploscypha Jake Ruygt 1996-5-19 3719 Napa Chiles Valley at east end of large meadow. 228 Comment
  JEPS50054  Sidalcea hartwegii Willis L. Jepson 1893-5-9 14070 Napa hills w Rutherford; Napa River Basin, w of Rutherford Comment
  UC871453  Sidalcea hartwegii M. S. Jussel 1937-5-23 Napa Palisades Comment
  JEPS50094  Sidalcea hartwegii W. L. Jepson with R. F. Hoover 1938-6-8 18890 Napa Lower portion of Butts Canyon Comment
  UCD116745  Sidalcea hartwegii Jake A. Ruygt 1975-5-17 37 Napa above south wall of canyon, Milliken Creek, 4.5 miles south of Trancas Street and State Highway 29 intersection. 60 Comment
  UCD167287  Sidalcea hartwegii Jake Ruygt 1998-6-8 4017 b Napa Atlas Peak Road, entry road to Milliken Reservoir. Comment
  RSA292974  Sidalcea keckii Reino Alava 1957-5-30 993 Napa Near the end of State Highway no. 37, in the southern end of Capell Valley. Comment
Read comments
Jan 30 2008
  SD133948  Sidalcea keckii Barbara Ertter, Annette Carter 1989-5-28 8500 Napa Berryessa-Knoxville Road north of Lake Berryessa, 4.7 miles south of Knoxville tunnel. 299 Comment
  UCD170376  Sidalcea keckii Daniel Potter; N Khuu 2016-5-8 873 Napa Knoxville Wildlife Area, west of Berryessa-Knoxville Road along trail from Zim Zim Falls trailhead to lower Nevada Creek, just west of tributary to Nevada Creek. 281 Comment
  UCD170459  Sidalcea keckii Daniel Potter; Ninh Khuu 2016-6-18 888 Napa Knoxville Wildlife Area, upper Zim Zim Creek drainage east of Knoxville-Devihlead Road. 447 Comment
  UCD116607  Sidalcea keckii John D. Atkin 1952-5-1 6 Napa on north slope of Portugese Canyon, about 1 mile up Putah Creek from Recreation Beach. Comment
  UCD167289  Sidalcea malviflora subsp. laciniata Jake Ruygt 1990-5-6 2531 Napa Yountville Ecological Reserve, Napa River, Yount. Cross Road. 27 Comment
  JEPS120392  Silene coniflora Jake Ruygt 2005-6-1 4882 Napa Knoxville Wildfire Area; spur ridge of Blue Ridge, 1 mile N of Mays Flat. Comment
  UC1300951  Silene gallica Helen K. Sharsmith 1963-4-20 5339 Napa southern slopes Mt. Atlas (San Francisco Bay Region); , southern slopes Mt. Atlas 609 Comment
  JEPS126133  Silene lemmonii Jake Ruygt 2008-5-21 5346 Napa Wildlake Ranch, Rattlesnake Ridge, road to Potato Hill. Calistoga 7.5' Qua. Comment
  UCR212283  Silene multinervia Ayzik Solomeshch 2007-8-7 s.n. Napa North Coast Range, Oakville Ranch, c. 6 miles northwest of the town of Yountville; on Hwy 29 take 'Oakville Grade Road', c. 3 miles north from Yountville 205 Comment
  JEPS59331  Silybum marianum W. L. Jepson 1936-6-2 17606 Napa banks Napa River (near bridge on road to Sanitarium, St. Helena); banks Napa River, St. Helena Comment
  UCD148092  Silybum marianum Jake Ruygt 1978-5-13 300 Napa Suscol Hill, west of Hwy 29 (221). 7 Comment
  UCD74405  Sinapis arvensis Jake Ruygt 1999-7-3 4190 Napa Napa College, road north of tennis courts. 3 Comment
  UCD74404  Sisymbrium orientale Jake Ruygt 2000-5-17 4260 Napa Devilhead Rd. at top of first grade. 493 Comment
  UC1032510  Sisyrinchium bellum A. Lewis 1932-5-18 100 Napa Sarco Creek 182 Comment
  UCD48245  Sisyrinchium bellum Yumee Kim; L. Bachman, P. Lalbhai 2002-4-13 4 Napa McLaughlin UC Reserve. N of Berryessa-Knoxville Road. Just SW of the old town of Knoxville. 426 Comment
  POM291000  Sisyrinchium bellum Lyman Benson 1930-3-31 2020 Napa Calistoga, North Coast mt. range, base of Mt. St. Helena 305 Comment
  JEPS122676  Sium suave Jake Ruygt 1979-7-3 732 Napa Napa River south of Trancas St. Quad: Napa. Comment
  UCD21497  Solanum parishii Jake Ruygt; Louise Vincenzio, Land Trust of Napa County 2002-4-22 4399 Napa Quail Ridge Reserve. 249 Comment
  UCD49293  Solanum parishii A. Collier; D. Caterson and S. Kenady 2002-5-4 14 Napa Quail Ridge UC Reserve. At northern tip of ridge, N of the intersection of West and East roads. Along upper road leading to power lines, 2 m N of road. 335 Comment
  UC26280  Solanum umbelliferum H. P. Chandler 1900-5-7 Napa Rutherford Comment
  UC26281  Solanum umbelliferum H. P. Chandler 1900-5-7 Napa Rutherford Comment
  SEINET3149130  Solidago californica H. P. Chandler 1906-9-7 7117 Napa Alta Loma Ranch, Howell Mtn. 549 Comment
  UC88138  Solidago elongata K. Brandegee Sep 1888 Napa Howell Mountain Comment
  CAS-BOT-BC365097  Solidago velutina subsp. californica Mrs. E. C. Sutliffe 1921-9-5 s.n. Napa Oakville Comment
  JEPS106875  Solidago velutina subsp. californica Jake Ruygt 1987-6-14 2043 Napa 2.5 miles west of Madronna Ave.on Spring Mountain Rd. 274 Comment
  UCD63168  Solidago velutina subsp. californica Jake Ruygt 2001-10-22 4344 Napa Napa Valley, Solano Avenue at Dry Creek Rd. 30 Comment
  CHSC102297  Sonchus asper subsp. asper Lowell Ahart 2009-10-12 16429 Napa Below the high water line of Lake Berryessa, along Capell Creek east of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. 437 Comment
  UC2043156  Spartium junceum Barbara Ertter with Jake Ruygt 1996-4-25 14604 Napa Kroeber Ranch on NE flank of Mount St. John, W of Rutherford in Napa Valley. Comment
  CAS-BOT-BC390308  Spergularia macrotheca var. macrotheca John Thomas Howell 1932-10-8 10803 Napa Napa River levee at Cuttings Wharf Comment
  UCD18143  Spergularia rubra Jean Shepard; with PLB 102 class 2000-4-29 194 Napa McLaughlin Reserve, ca. 0.75 as the crow flies miles NNW of the site of the old town of Knoxville, east side of the road to Clover Valley. 499 Comment
  CAS-BOT-BC390564  Spergularia rubra Peter H. Raven 1953-10-4 6366 Napa Duttons Landing 3 Comment
  JEPS62970  Stachys ajugoides Willis L. Jepson 1893-4-24 14985 Napa hills e St. Helena (to Conn Valley) Comment
  RSA505701  Stachys albens Gordon H. True Jr. 1937-7-30 828 Napa Stream near Etna Springs. 366 Comment
  POM118339  Stachys rigida subsp. quercetorum Marcus E. Jones 1924-4-24 s.n. Napa Napa. Comment
  RSA195294  Stachys rigida subsp. quercetorum Gilbert Muth 1967-5-17 671 Napa Oat Hill Road, Calistoga 244 Comment
  JEPS112632  Stachys stricta Jake Ruygt 1981-7-8 1062 Napa Bateman Creek 609 Comment
  CAS-BOT-BC386934  Stellaria media Elsa G. Ruckert 1960-2-20 2 Napa Dry Creek Road 365 Comment
  UCD99477  Stellaria nitens J. M. Tucker 1977-4-24 4389 Napa above Eticuera Creek; west side of Berryessa - Knoxville Road, 15.6 miles by road north of junction with Pope Canyon Road (2.3 miles southeast of Knoxville Mine). 304 Comment
  UC35827  Stephanomeria elata Willis L. Jepson 1893-9-23 Napa Calistoga Napa River Basin Comment
  UCD35506  Stephanomeria elata Beecher Crampton 1956-9-28 3881 Napa Vaca Mtns, floor of Wragg Canyon. Comment
  JEPS129047  Stephanomeria virgata subsp. pleurocarpa Jake Ruygt 2016-6-11 6281 Napa Smittle Creek, east side of Lake Berryessa. Chiles Valley 7.5' Quad. Comment
  SD148000  Stephanomeria virgata subsp. pleurocarpa D. Sanchez-Mata, P. Rodriguez-Rojo 1996-10-19 Napa Knolxville-Berryessa Road; near Spanish Flat. 220 Comment
  JEPS123027  Stipa lemmonii Jake Ruygt 2002-4-17 4390 Napa North of Foss Valley, Atlas Peak, Vineyards (Antinori). Quad: Rutherford. Comment
  JEPS122971  Stipa lepida Jake Ruygt 1995-6-26 3511 Napa About 2 miles south of Lake Hennessey on private road (Talyor). Quad: Yountville. Comment
  SACT002371  Stipa lepida John Willoughby 1977-4-27 Napa Along State Highway 128 near Monticello Dam, northwest facing slope on south side of highway. Comment
  UCD164229  Streptanthus breweri N. Ivalu Cacho; Sharon Y. Strauss 2013-5-25 IC-SS 306 Napa Hunting Creek. 313 Comment
  POM197071  Streptanthus glandulosus L. F. Robbins 1927-4-15 s.n. Napa [no locality information provided] Comment
  CAS-BOT-BC87151  Streptanthus glandulosus subsp. glandulosus John Thomas Howell 1931-4-3 6120 Napa Napa Range. Pope Creek Canyon, 8 miles from Monticello. Comment
  JEPS106600  Streptanthus glandulosus subsp. glandulosus Jake Ruygt 1979-4-14 517 Napa Oat Hill Mine Rd. in the Palisades area 670 Comment
  UC1278007  Streptanthus glandulosus subsp. glandulosus B. Crampton 1957-5-16 4043 Napa slopes above Capell Creek (n end of valley); Capell Valley Comment
  JEPS96912  Streptanthus hesperidis Dean W. Taylor 1998-6-23 16689 Napa N flank Twin Peaks, ridge dividing Cedar Canyon & Bateman Cr (ca. 5 air mi W Aetna Springs) 655 Comment
  JEPS121550  Streptanthus morrisonii Adam C. Schneider with Dick O'Donnell 2013-5-26 229 Napa Near Three Peaks, Lake County Comment
  UCD164230  Streptanthus morrisonii N. Ivalu Cacho; Sharon Y. Strauss 2013-6-6 IC-SS 308 Napa Hunting Creek. 337 Comment
  UC1102668  Streptanthus morrisonii subsp. elatus Arthur R. Kruckeberg 1947-5-3 1438 Napa 0.25 mi w White's Point (Table Mtn. road, ca 5 mi e of Mountain Mill House, Napa-Lake Co. line); ; W of White's Pt., Table Mt., Napa-Lake Co. Comment
  UCD74414  Streptanthus tortuosus Jake Ruygt 1986-4-12 1688 Napa Devil's Canyon. 569 Comment
  UCD137414  Symphoricarpos albus var. laevigatus K. Esau 1933-7-8 s.n. Napa Calistoga near Petrified Forset. Comment
  JEPS40827  Symphyotrichum spathulatum W. L. Jepson 1939-9-12 19482 Napa 1 mi w of summit, w side Spring Mountain (w of St. Helena) Comment
  JEPS40791  Symphyotrichum subspicatum W. L. Jepson 1894-11-6 Napa Calistoga Comment
  RSA129898  Taeniatherum caput-medusae P. H. Raven 1951-5-26 2878 Napa Butts Canyon. 305 Comment
  UCD37949  Taeniatherum caput-medusae Beecher Crampton 1962-5-16 6436 Napa Napa County, town of Pope Valley. Comment
  JEPS120424  Tamarix chinensis Jake Ruygt 2010-8-24 5765 Napa Barton Hill, northwest shore of Lake Berryessa. Comment
  HSC21381  Tamarix parviflora Greg Bos 1963-3-17 42 Napa Delta region, Montezuma Slough. 15 Comment
  UC9679  Thalictrum fendleri var. polycarpum Willis L. Jepson 1894-5-1 Napa Upper Conn Valley Napa River Basin Comment
  UC9703  Thalictrum fendleri var. polycarpum Willis L. Jepson 1893-5-1 Napa Upper Conn Valley Napa River Basin Comment
  CAS-BOT-BC399739  Thalictrum polycarpum Betty H. Johnson 1958-6-20 662 Napa Near Mt. Mill House, 6.4 mi. S.-W. of Middletown Comment
  UC16393  Thermopsis californica var. californica Willis L. Jepson 1893-4-27 Napa Napa City Comment
  UCD148806  Thermopsis californica var. californica Ellen Dean; Diana Hickson 2014-4-29 8113 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 579 Comment
  UCSB7191  Thermopsis gracilis Keator, Glenn 1959-3-28 Napa About 1/2 mile above Conn's picnic grounds near Lake Hennessy, Napa range Comment
  SEINET7075534  Thermopsis macrophylla var. venosa A. G. Vestal 1955-5-8 s.n. Napa Serpentine north of Knoxville. 38? deg. 50' 11" North Latitude, -122? deg. 20' 28" West Longitude. UTM Zone 10, 557185mE, 4298615mN. (NAD 27)]. [Coordinate Datum: WGS84/NAD83]. Comment
  CAS-BOT-BC66479  Thysanocarpus curvipes John Thomas Howell 1930-3-23 4574 Napa Mount Saint Helena, 5 miles from Calistoga. Comment
  CAS-BOT-BC66501  Thysanocarpus curvipes Peter H. Raven 1950-4-15 1748 Napa Wooden Valley Grade, above Napa. 457 Comment
  CAS-BOT-BC66515  Thysanocarpus curvipes Paul F. Covel 1940-4-28 1706 Napa Pac-Union College-Pope Valley Road. Comment
  CHSC43429  Thysanocarpus curvipes Lowell Ahart 1976-3-7 1028 Napa About 2 miles south-west of Monticello Dam. 152 Comment
  JEPS106591  Thysanocarpus curvipes Jake Ruygt 1994-3-15 3318 Napa Chiles Canyon Road about 1 mile from Chiles Valley 365 Comment
  UC11013  Thysanocarpus curvipes Willis L. Jepson 1893-4-26 Napa La Lomita; Napa River Basin, La Lomita Comment
  UC11032  Thysanocarpus curvipes W. L. Jepson 1893-4-25 Napa St. Helena Comment
  CAS-BOT-BC66507  Thysanocarpus curvipes John H. Thomas 1968-4-4 14274 Napa About 3 miles north of Calistoga on road to Lakeport. Comment
  UCD14242  Thysanocarpus curvipes M. A. LeFevre 1974-4-6 53 -4e Napa Along Highway 128 at Monicello Dam on Lake Berryessa. 304 Comment
  JEPS106585  Thysanocarpus radians Jake Ruygt 1997-3-8 3803 Napa south of Butts Canyon Road intersection with James Creek Rd 210 Comment
  JEPS666 Image available Thysanocarpus radians W. L. Jepson 1893-4-28 30 n Napa plateau n Mt. George; Napa River Basin Comment
  UCD36171  Thysanocarpus radians Beecher Crampton 1952-3-24 1032 Napa 8 miles north of city of Napa, on Soda Springs Road. Comment
  POM182721  Tonella tenella D. D. Keck 1931-4-3 1066 Napa Pope Creek Canyon, 8 miles NW of Monticello. Comment
  UCD41326  Torilis nodosa Tera Pitman; E. Dean, M. Bibbo, and A. Douglas 2004-5-1 1 Napa Southern end of McLaughlin UC Reserve, NE side of Knoxville-Berryessa Rd, W side of Knoxville Creek, 1 road mile S of the gate to old town of Knoxville. 353 Comment
  HSC99975  Torreya californica Michael Kauffmann 2011-6-11 16 Napa Along trail to Mount Saint Helena 701 Comment
  UCD20035  Torreya californica C. H. Lamoureux; J. M. Tucker and R. Gankin 1957-4-17 1203 Napa 8 miles north of Calistoga on Hwy 29, 1.2 miles north of crest of Hwy 29 on Mt. St. Helena. Comment
  UC17923  Toxicodendron diversilobum Willis L. Jepson May, 1893 Napa near St. Helena St. Helena; Napa R. Basin Comment
  UC869555  Toxicodendron diversilobum Alice Eastwood 1922-5-4 11256 Napa Calistoga Comment
  UCD117068  Toxicodendron diversilobum Stephen E. Willeford 1964-5-1 7 Napa East of highway, Putah Creek Drainage, 3 miles south of junction of State Highways 128 and 37. [37 was what is now called 121; assume this was traveling SW along 128 from junction] 182 Comment
  UCD147533  Toxicoscordion micranthum Ellen Dean; Diana Hickson 2014-4-29 8087 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 603 Comment
  CAS-BOT-BC377108  Tragopogon porrifolius Elsa Ruckert 1960-5-7 144 Napa 6495 Dry Creek Road 365 Comment
  JEPS112637  Trichostema lanceolatum Jake Ruygt 1969-12-31 3792 Napa Suscol Ridge near PG & E substation. 12 Comment
  JEPS63144  Trichostema laxum W. L. Jepson 1938-9-24 19024 Napa canyon of Limekiln Creek, N of Pope Valley 304 Comment
  UCD166642  Trichostema laxum Jake Ruygt 2007-7-1 5245 Napa west of Hwy 29, near Lake County line. 541 Comment
  UCD18105  Trichostema laxum K. Carpenter; with E. Dean and K. Chaney. 2000-8-11 41 Napa Napa County. Just south of the border with McLaughlin Reserve. Along Knoxville-Berryessa Rd, ca. 1.4 road miles south of intersection with dirt road leading to old town of Knoxville, SW side of road, along drainage leading into Knoxville Creek; there is an old homestead uphill from collection site. 371 Comment
  JEPS108655 Image available Trichostema ruygtii Jake Ruygt 2004-8-21 3089 Napa Mead Ranch, Atlas peak Road, south of Foss Valley 481 Comment
  JEPS120349  Trichostema ruygtii Jake Ruygt 2004-8-7 4642 Napa Green Valley Ranch near Solano County line. Mount George 7.5' Quad. Comment
  JEPS126091  Trifolium albopurpureum Jake Ruygt 1995-4-29 3451 Napa Skyline Park, Sugarloaf Peak Trail. Mount George 7.5' Qua. Comment
  UCD83434  Trifolium albopurpureum Jake Ruygt 1983-4-17 1428 Napa Mt. St. Helena. 777 Comment
  UCD83435  Trifolium albopurpureum Jake Ruygt 2003-5-17 4525 Napa Archer Taylor Preserve. 548 Comment
  JEPS65845  Trifolium albopurpureum var. dichotomum W. L. Jepson 1893-4-25 13664 Napa w St. Helena (rd to Caux's Cabin); Hoods Peak Range Comment
  UCD107885  Trifolium bifidum R. Tofsrud 1951-5-20 s.n. Napa Yountville Cemetery. Comment
  JEPS106696  Trifolium bifidum var. bifidum Jake Ruygt 1977-4-3 169 Napa Green Creek area east of Lake Berryessa 259 Comment
  JEPS106794  Trifolium bifidum var. decipiens Jake Ruygt 1993-5-24 3269 Napa Las Posadas State Forest 524 Comment
  UCD83439  Trifolium bifidum var. decipiens Jake Ruygt 2005-3-28 4728 Napa Berryessa-Knoxville Rd., between Spanish Flat and Lake Berryessa Marina. 146 Comment
  RSA91562  Trifolium bifidum var. decipiens Unspecified 1931-4-2 6093 Napa 10 miles east of Napa on road to Monticello, Napa Range. Comment
  SEINET7063152  Trifolium breweri A. G. Vestal 1963-4-7 s.n. Napa About 2.1 miles north of Saint Helena on the Silverado Trail. UTM Zone 10, 544382mE, 4264735mN. (WGS84/NAD83). 70 Comment
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Jul 24 2018
  JEPS122769  Trifolium cernuum Jake Ruygt 2011-5-12 5784 Napa Ridgeview Lane south of Howell Mtn Road. Quad: St. Helena. Comment
  JEPS106799  Trifolium ciliolatum Jake Ruygt 1996-5-4 3648 Napa Butts Canyon Road at James Creek Road; field to SE. 205 Comment
  UCD108299  Trifolium ciliolatum R. Tofsrud 1951-5-20 s.n. Napa Yountville Cemetery. Comment
  OBI12704  Trifolium ciliolatum R. L. Hoover 1968-4-20 46 Napa On Howell Mtn rd, 2.6 mi NE of State Rte 29/128, on W side of rd Comment
  UCD83441  Trifolium ciliolatum Jake Ruygt 1981-4-18 977 a Napa Harris Canyon. 213 Comment
  JEPS126080  Trifolium depauperatum var. amplectens Jake Ruygt 1986-4-5 1684 Napa Ridge on the south side of Suscol Creek. Cordelia 7.5' Quad. Comment
  JEPS106806  Trifolium fucatum Jake Ruygt 1982-5-8 1228 Napa American Canyon Rd. north side of road 121 Comment
  UCD48023  Trifolium fucatum Ari Houser; J. Westbrook,S. Ratay,M. Disney,R. Wolfson,S. Wathen 2000-4-22 10 Napa Napa Co, McLaughlin Reserve, Old Knoxville Townsite, 0.10 miles north of Berryessa-Knoxville Rd along Old Knoxville Rd. 396 Comment
  UC16803  Trifolium fucatum Willis L. Jepson 1893-4-25 Napa trail to Cuax's Cabin Napa River Basin Comment
  RSA121049  Trifolium incarnatum H. C. Cantelow, Ella Dales Cantelow s.n. Napa On Silverado Trail southeast of Rutherford. Comment
  UCD83724  Trifolium incarnatum Surene Foutouhi; with E. Dean, Yuan-Chun Han 2010-5-7 3 Napa Along Wooden Valley Road; East side of the road; Lamb Vineyard Property. 188 Comment
  CDA10873  Trifolium microcephalum G. F. Hrusa, M. Rejmanek 1993-5-15 10968 Napa University of California, Quail Ridge Reserve betw. Hwy 128 and Lake Berryessa. Comment
  JEPS106710  Trifolium microcephalum Jake Ruygt 1980-5-3 867 Napa Oat Hill Mine Rd. at Twin Peaks 755 Comment
  UCD38821  Trifolium microcephalum Beecher Crampton 1958-4-29 4757 Napa Capell Valley. Comment
  UCD118356  Trifolium microdon Reed Crane; Plant Biology 102 Collectors 2012-5-5 7 Napa Las Posadas State Experimental Forest. Northeastern part of property, on Recreation flat. 387 Comment
  UCD17970  Trifolium microdon Ellen Dean; Kate Mawdsley 2001-4-9 689 Napa SE corner of Lake Berryessa, just W of Monticello Dam. Quail Ridge Reserve. Along Decker Ridge Trail at jct with South Decker Canyon Rd. 359 Comment
  UC1300874  Trifolium microdon Helen K. Sharsmith 1963-4-20 5352 Napa above Wooden Valley (Montecello Rd); Napa Range Comment
  UC1197498  Trifolium obtusiflorum Joseph P. Tracy 1902-5-15 1481 Napa 3-4 mi e Angwin's (on hills at head of Moore's Creek); Northern Coast Ranges, Howell Mtn 365 Comment
  JEPS106715  Trifolium oliganthum Jake Ruygt 1992-4-4 2884 Napa Scott's Flat, Aetna Mine Rd. 505 Comment
  POM126206  Trifolium olivaceum var. olivaceum C. F. Sonne 1888-04 183 Napa Napa Comment
  POM21431  Trifolium olivaceum var. olivaceum A. A. Heller, H. E. Brown, A. H. Heller 1902-4-25 7409 Napa Near Napa Comment
  CDA4314  Trifolium subterraneum T. C. Fuller 1958-5-1 3725 Napa Matheson property, 2092 Los Amigos Road, Napa. 0 Comment
  UCD168552  Trifolium subterraneum Stephen P. Rae; A. Solomeshch 2007-3-25 s.n. Napa Nickel Property at 1730 Conn Valley Road north of Lake Hennessy, near end of Conn Valley Road, ca. 1/3 km east of Greenfield Road. 125 Comment
  UCD38371  Trifolium variegatum Beecher Crampton 1955-4-4 2389 Napa 2 miles north of Calistoga. Meadow supplied by waters of the Myrtledale Hot Springs. Comment
  UCD83432  Trifolium variegatum Jake Ruygt 1991-5-11 2657 Napa Aetna Springs, 0.5 mi W of golf course. 310 Comment
  JEPS4392  Trifolium variegatum var. variegatum W. L. Jepson 1915-4-23 6235 Napa e St. Helena (hills) Comment
  UCD47882  Trifolium vesiculosum Joe Ditomaso 2005-6-27 s.n. Napa Napa County, McLaughlin UC Reserve, along Morgan Valley Rd, ca. 0.5 miles S of the junction of Napa and Lake Counties. Comment
  CDA31273  Trifolium willdenovii D. G. Kelch 2010-5-6 10 .184 Napa Wooden Valley Road, about 5 km north of Napa/Solano county line, north of Rockville. Comment
  JEPS4171  Trifolium willdenovii W. L. Jepson 1936-7-2 17645 Napa Angwin Napa Range, Howell Mtn Comment
  JEPS4400  Trifolium willdenovii W. L. Jepson 1913-4-15 5305 Napa Howell Mtn 609 Comment
  UC137707  Trifolium willdenovii C. F. B. 1903-4-19 1992 Napa Calistoga Comment
  UCD160013  Trifolium willdenovii James A. Neilson Jr. 1975-4-13 3138 Napa Soda Canyon Road. (Exact location unknown. Elevation and coordinates estimated by label maker.) 457 Comment
  JEPS4399  Trifolium willdenovii W. L. Jepson 1913-4-15 5304 Napa Howell Mountain, Napa Range Comment
  POM18840  Trifolium willdenovii C. F. Baker 1903-4-19 1989 Napa Calistoga. Comment
  UC16735  Trifolium willdenovii Willis L. Jepson 1893-5-1 Napa Knights Valley grade at divide Napa River Basin Comment
  UCD109894  Trifolium willdenovii R. Tofsrud 1951-5-26 s.n. Napa Strut Canyon Road. Comment
  UCD167155  Trifolium wormskioldii Jake Ruygt 2015-5-19 6103 Napa Atlas Peak Road Circle R (S) Ranch. 432 Comment
  UCD20032  Trillium chloropetalum C. H. Lamoureux; J. M. Tucker, R. Gankin 1957-4-17 1206 Napa Junction of Glass Mountain Road and Silverado Trail. Comment
  JEPS120429  Triphysaria eriantha Jake Ruygt 2010-3-9 5483 Napa Lovell Valley Loop Rd. about 0.5 mi. south of Napa / Sonoma Line. Comment
  JEPS10403  Triphysaria eriantha subsp. eriantha W. W. Mott 1915-4-26 2 Napa hills w Napa; hills w Napa Comment
  JEPS20135  Triphysaria eriantha subsp. eriantha W. W. Mott 1915-4-25 Napa Napa Comment
  JEPS10434  Triphysaria versicolor subsp. faucibarbata W. L. Jepson 1922-4-21 9624 Napa Napa Jct 22 Comment
  SJSU11599  Triphysaria versicolor subsp. faucibarbata E. C. Garbett 1961-4-15 288 Napa by rd between Vallejo & Brown Valley Rd Comment
  UC1220982  Triphysaria versicolor subsp. faucibarbata Beecher Crampton 1962-5-8 6413 Napa 2 mi n Calistoga (Myrtledale Hot Springs); Myrtledale Hot Springs Comment
  UCD95927  Trisetum canescens Ellen Dean; with Clare Loughran 2011-5-20 7059 Napa On the border of Sonoma County. Private property at 4028 Spring Mountain Road. West of the town of St. Helena. Western side of property. 612 Comment
  JEPS110930  Triteleia hyacinthina Jake Ruygt 1995-6-5 3486 Napa Taylor property, about 2 miles south of Lake Hennessey. 432 Comment
  SEINET3889059  Triteleia laxa R. Blenkush, S. Hee; C. McWhorter; J. Moeller 2000-4-22 18 Napa Northern Napa County, McLaughlin Reserve, grassland 500 feet south of intersection between Old Knoxville Road and Berryessa-Knoxville Road.; 0 411 Comment
  UCD148809  Triteleia laxa Ellen Dean; Diana Hickson 2014-4-29 8116 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 579 Comment
  UCD48276  Triteleia laxa D. Goldberg; K. Carpenter, S. Cruz, M. Ochoa, and K. Watts 2000-4-28 9 Napa Napa County, McLaughlin Reserve, first ridge south of Knoxville Rd., along Devilhead Rd., west side of rd., top of hill, ca. 50 ft from lookout tower. 548 Comment
  CAS-BOT-BC526508  Triteleia laxa David D. Keck 1933-5-29 2367 Napa Pope Creek bridge south of Walters Springs. Comment
  UCD21718  Triteleia laxa Robin McMaster 1972-4-9 49 Napa Lake Berryessa, shaded grassy slope. Comment
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Dec 18 2011
  UCD148739  Triteleia lugens Jake Ruygt 1989-5-13 2322 Napa Napa County; Vaca Mtns. About 1 mile north of Mt. Vaca. 822 Comment
  UCD139363  Triteleia peduncularis Beecher Crampton 1957-6-4 4104 Napa above Capell Creek, north end of Capell Valley. Comment
  UCD148740  Triteleia peduncularis Jake Ruygt 1980-6-7 925 Napa Napa County; 2.5 miles south of Berryessa Knoxville Rd. on Devilhead Rd. 432 Comment
  UCD160647  Triteleia peduncularis Ellen Dean; Susan Harrison, Sharon Strauss 2015-5-10 8733 Napa Butts Canyon. Along Butts Canyon / Guenoc Road, just NW of Shell Valley Road turnoff. South side of road. 253 Comment
  CAS-BOT-BC527963  Triteleia peduncularis R. F. Hoover 1938-6-8 3541 Napa South Fork of Butts Creek Comment
  UCD161236  Turritis glabra Jake Ruygt 1992-4-2 2873 Napa Napa County : Wild Horse Valley Ranch, Johnson's Meadow. (Coordinates estimated by label maker at UC Davis). 481 Comment
  RSA187424  Umbellularia californica John H. Thomas 1966-3-22 11530 Napa R. L. Stevenson State Park on the eastern slopes of Mt. St. Helena along highway 29 between Middletown and Calistoga. 762 Comment
  CAS-BOT-BC381967  Uropappus lindleyi John H. Thomas 1958-4-19 7115 Napa About 2 miles SW of Oakville 152 Comment
  JEPS36213  Uropappus lindleyi W. L. Jepson 1923-4-29 9891 Napa St. Helena Comment
  UCD170833  Uropappus lindleyi 2018-4-28 2 Napa Cedar Roughs Wildlife Area, to the west of Lake Berryessa, on the south side of Pope Creek and Pope Canyon Road. Along Dollarhide Road (undeveloped road/trail) on the west side of Maxwell Creek. 158 Comment
  UCD39036  Uropappus lindleyi Beecher Crampton 1962-5-16 6440 Napa 0.25 mile northwest of the junction of State Hwy. 128 and Spanish-Flat Lake Berryessa Road. Comment
  CAS-BOT-BC526976  Urtica dioica subsp. holosericea Dennis W. Woodland 1970-8-13 1616 Napa 0.1 mi N of Anguinon Pope Valley Rd Comment
  JEPS43440  Urtica dioica subsp. holosericea W. L. Jepson 1894-11-7 Napa below Napa City Comment
  CAS-BOT-BC404292  Urtica urens Peter H. Raven 1953-4-2 5298 Napa Hills just e. of Imola 60 Comment
  UCD124633  Verbascum thapsus Beecher Crampton 1962-10-9 6702 Napa 1.25 miles southwest of Angwin, Howell Mtn. Road. Conn Creek. Comment
  JEPS110737  Verbena lasiostachys var. scabrida Jake Ruygt 1979-7-28 780 Napa 2 miles north of fire trail up Mt. St. Helena on HWY 29 487 Comment
  JEPS110577  Veronica americana Jake Ruygt 1986-8-2 1891 Napa .5 mile east of . Kelly Rd. , Fagan's Creek 28 Comment
  UCD21502  Veronica peregrina subsp. xalapensis Jake Ruygt; Louise Vincenzio, Land Trust of Napa County 2002-4-22 4404 Napa Quail Ridge Reserve. 262 Comment
  UCD83428  Vicia americana subsp. americana Jake Ruygt 1995-5-8 3476 Napa Taylor Property, 1.5 mi S of boatramp on Sage Canyon Rd. 402 Comment
  POM16867  Vicia sativa C. F. Baker 1903-4-19 1988 Napa Calistoga. Comment
  JEPS106539  Vicia sativa subsp. nigra Jake Ruygt 1996-4-6 3551 Napa near ridgetop, sout of Rector Dam. 243 Comment
  JEPS106540  Vicia sativa subsp. nigra Jake Ruygt 1990-4-21 2501 Napa Giles Mead ranch, Atlas Peak Rd. 429 Comment
  UC1300883  Vicia sativa subsp. nigra Helen K. Sharsmith 1963-4-20 5343 Napa s slopes Mt. Atlas; San Francisco Bay Region 609 Comment
  UCD108922  Vicia sativa subsp. nigra David Lawfer 1952-3-29 142 Napa Napa. Comment
  JEPS85034  Vicia villosa subsp. varia Larry Heckard and Mary Ashton 1969-5-3 2204 Napa ca 7 mi ne Napa (Mead Ranch, off the Atlas Peak Rd) 457 Comment
  CDA11438  Viola glabella G. F. Hrusa, M. Tu 1995-5-6 12161 Napa North Coast Biodiversity Arena; Summit of Howell Mtn. in Las Posadas State Forest, vicinity of fire station. Comment
  RSA195287  Viola lobata Gilbert Muth 1967-4-19 604 Napa Aetna Springs Road. 457 Comment
  UCD110899  V