Search Results — 2000 specimen records retrieved (1452 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UCD116169  Abutilon theophrasti John N. Fiske 1957-9-13 s.n. Napa location unknown. Comment
  CAS-BOT-BC331524  Acer macrophyllum Alice Eastwood 1922-3-25 11106 Napa Calistoga Comment
  UC1543125  Acer macrophyllum Charlotte G. Nast 1936-3-27 49 Napa Putah Canyon Comment
  UCD117009  Acer macrophyllum Beecher Crampton 1965-8-23 7492 Napa 2.5 miles east of Moskowite Corners, State Hwy. 128. Comment
  JEPS104476  Achillea millefolium Jake Ruygt 1992-7-22 3102 Napa Leoma Lakes, Wild Horse Valley Ranch 405 Comment
  UCD164483  Achillea millefolium J. A. Johnston 1995-5-7 11 Napa Next to Hwy 128 approximately, 0.5 miles west of Markley Cover on Lake Berryessa. 1000 Comment
  UCD128301  Achillea millefolium Alan P. Godlewski 1974-5-3 26 Napa Lake Berryessa. Comment
  CAS-BOT-BC218684  Achnatherum lemmonii F. H. Utech; W. Knight; I. Knight; S. Edwards 1986-5-19 86 -300 Napa Robert Lewis Stevenson State Park Trail to the pallisades, trailhead on CA Hwy 29 near St. Helena Creek, S. Edwards SWE 85.101 750 Comment
  JEPS36724  Achyrachaena mollis W. L. Jepson 1915-4-23 6245 Napa Conn Valley; Napa Range, Conn Valley Comment
  UCD170663  Achyrachaena mollis 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
  UCD103790  Acmispon americanus var. americanus Edward Lee Greene 1979-6-1 s.n. Napa location unknown. Comment
  SJSU1361  Acmispon brachycarpus J. W. Tilden 1953-5-24 1038 Napa NE slope Mt St Helena 457 Comment
  UCD104055  Acmispon brachycarpus K. Esau; D. Hartmann 1941-7-17 s.n. Napa Between Middletown and Calistoga. Comment
  UCD148816  Acmispon brachycarpus Ellen Dean; Diana Hickson 2014-4-29 8122 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 601 Comment
  UCD104117  Acmispon glaber H. T. Hartmann 1941-8-14 s.n. Napa Between Napa and Monticello. Comment
  UCD75711  Acmispon glaber Jake Ruygt 2008-6-25 4931 Napa Peak below and SW of Berryessa Peak. 762 Comment
  UCD75710  Acmispon strigosus Jake Ruygt 1980-4-1 965 Napa Stags Leap. 213 Comment
  UCD148810  Acmispon wrangelianus Ellen Dean; Diana Hickson 2014-4-29 8117 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 579 Comment
  UCD168551  Acmispon wrangelianus 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
  UCD18153  Acmispon wrangelianus Jean Shepard; with Plant Biology 102 class 2000-4-29 191 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
  CDA6754  Acroptilon repens B. E. Eaton 1971-7-7 Napa Dealy Lane, Napa. 0 Comment
  SBBG50562  Adenostoma fasciculatum var. fasciculatum B. Stanfield 1966-5-22 49 Napa 1 mi W of Monticello Dam, along St Hwy 128 Comment
  UCD164818  Adiantum aleuticum Jake Ruygt 2013-5-18 5907 Napa Las Posadas State Forest. 367 Comment
  UCD137192  Adiantum jordanii D. H. Hartmann 1942-3-7 s.n. Napa in Green Valley. Comment
  CAS-BOT-BC202658  Aesculus californica Marion Ownbey; Ruth P. Ownbey 1938-7-9 1701 Napa 6 miles northeast of Napa Comment
  RSA60347  Aesculus californica G. R. Campbell 1948-6-18 660 Napa 10 miles south of Montecello. Comment
  UC521688  Aesculus californica Joseph Andorfer Ewan 1933-9-17 8016 Napa 2.5 mi out Calistoga (Mt St Helena road) Comment
  JEPS36376  Agoseris grandiflora var. grandiflora W. L. Jepson 1893-4-24 Napa hills e of, on route to Conn Valley St. Helena; Napa Valley River Basin, Conn Valley Comment
Read comments
Jan 18 2009
  CAS-BOT-BC29637  Agoseris grandiflora var. grandiflora P. H. Raven 1950-5-6 2009 Napa Near the place where the W branch of the Napa River meets route 29 approximately 1 mi N of Calistoga. 152 Comment
  UCD69026  Agoseris heterophylla P. Rodriguez-Rojo 1997-4-20 Napa Lake Berryessa. Capell Creek. On serpentine rocks. UTM: 10SEN6659 155 Comment
  CAS-BOT-BC46061  Agoseris heterophylla var. cryptopleura David D. Keck 1933-5-29 2347 Napa Pope Creek bridge south of Walters Springs Comment
  CAS-BOT-BC127140  Agrostis exarata Peter H. Raven 1952-5-31 4117 Napa 2.5 miles east of Yountville. 60 Comment
  UC766831  Agrostis exarata R. F. Hoover 1941-5-10 5007 Napa between St. Helena and Calistoga Comment
  UCD37406  Agrostis exarata Beecher Crampton 1960-5-17 5536 Napa Napa County, 4 miles east of Rutherford. Comment
  UCR152417  Agrostis hallii Beecher Crampton 1957-6-4 4109 Napa Inner North Coast Ranges, North end of Capell Valley, above Capell Creek 213 Comment
  POM126100  Agrostis microphylla Joseph P. Tracy 1903-5-15 1856 Napa Calistoga Hot Springs 91 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
  UCD53040  Agrostis microphylla A. A. Beetle 1946-5-7 4258 Napa 2 miles N of Calistoga at Myrtledale Hot Springs. Comment
  UCD53041  Agrostis microphylla Beecher Crampton 1956-5-21 3443 Napa Myrtledale Hot Springs, 2 miles north of Calistoga. Comment
  POM126110  Agrostis pallens Joseph P. Tracy 1904-5-23 2093 Napa Hills east of Calistoga 244 Comment
  RSA92784  Alisma triviale Peter H. Raven 1950-7-4 2470 Napa Along railroad, Yountville. Comment
  JEPS47554  Allium amplectens W. L. Jepson 1938-6-8 18904 Napa Butts Canyon Comment
  RSA195336  Allium amplectens Gilbert Muth 1967-5-19 690 Napa Milliken Dam. 335 Comment
  RSA32797  Allium cratericola A. A. Heller 1938-4-3 15012 Napa Flat, treeless summit of Table Mountain, north of Oroville. 305 Comment
  RSA0000087  Allium cratericola Alice Eastwood 1918-5-1 6864 Napa Mt. St. Helena. Old crater in sand. Comment
  UCD48253  Allium falcifolium Michele Disney; J. Westbrook,S. Ratay,R. Wolfson,A. Houser,S. Wathen 2000-4-22 30 Napa Napa Co., McLaughlin Reserve, along east side of Devilhead Rd at ridge approx. 0.5 miles sout of Berryessa-Knoxville Rd. 533 Comment
  RSA22699  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
  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
  SEINET195017  Allium fimbriatum A. A. Heller 1941-5-3 16127 Napa Near summit of first ridge W of Knoxville Comment
  CAS-BOT-BC468998  Allium fimbriatum var. fimbriatum John Thomas Howell 1931-4-3 6131 Napa Pope Creek Canyon, Napa Range Comment
  CAS-BOT-BC472796  Allium neapolitanum Merrel Ackley 1956-4-1 s.n. Napa 2 miles east of Napa Comment
  JEPS122682  Allium peninsulare var. franciscanum Jake Ruygt 2000-5-17 4254 Napa Highway 12 NW of Duhig Road on di Rosa Preserve. Quad: Napa. Comment
  UC410445  Allium serra Alice Eastwood 1930-4-13 17927 Napa canyon between Monticello and Pope Valley Comment
  CAS-BOT-BC475559  Allium serra Alice Eastwood 1930-4-13 17927 Napa Canon between Monticello and Pope Valley Comment
  CAS-BOT-BC475564  Allium serra John Thomas Howell 1931-4-2 6103 Napa 4 miles from Monticello on Wooden Valley Road. Comment
  NY452055  Allocarya piperi A. A. Heller 1902-4-25 5361 Napa Near Napa Comment
  UC648320  Allophyllum divaricatum M. S. Jussel 1937-5-23 Napa Palisades Comment
  UCD169878  Allophyllum gilioides subsp. gilioides Daniel Potter; N Khuu, C Donkers, A Yip, M Simon 2015-2-28 718 Napa Knoxville Wildlife Area. 245 Comment
  UCD117325  Allotropa virgata Gilbert Muth 1971-5-20 s.n. Napa 1/2 mile down Ink Grade Road from White Cottage Road, Angwin. Comment
  CAS-BOT-BC170677  Alnus rhombifolia Peter H. Raven 1964-5-9 19053 Napa along dirt road 2 miles W of Aetna Springs Comment
  JEPS126112  Alnus rhombifolia Jake Ruygt 1978-4-6 266 Napa 2.9 miles east of Dry Creek Road on Redwood Road. Napa 7.5' Qua. Comment
  RSA299415  Alnus rhombifolia W. L. Jepson 1901-8-6 1717 Napa White Sulphur Spring. Comment
  UCD110018  Alnus rhombifolia C. R. Kovaic 1969-5-3 31 Napa Along Chiles Creek near roadside; on Chiles Pope Valley Road, 2 miles northwest of junction with Lower Chiles Valley Road. Comment
  CAS-BOT-BC137957  Alopecurus saccatus Peter H. Raven 1952-5-29 4081 Napa Napa River 1 mile north Napa. 60 Comment
  JEPS123023  Alopecurus saccatus Jake Ruygt 1989-4-6 2247 Napa Pasture across from Bale Mill entrance. Quad: Calistoga. Comment
  CHSC102537  Amaranthus albus Lowell Ahart 2009-10-27 16473 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
  JEPS115778  Amaranthus albus Lowell Ahart 2009-10-27 16473 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 Winte 130 Comment
  UC1010754  Amaranthus californicus Peter H. Raven 1951-10-28 3944 Napa Conn Lake 152 Comment
  UCD161575  Amaranthus powellii Jake Ruygt 2006-9-5 5096 Napa Rector Creek about 4/10 mile east of Conn Creek. 41 Comment
  CHSC102520  Amaranthus retroflexus Lowell Ahart 2009-10-12 16471 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
  UC12076  Amelanchier alnifolia var. semiintegrifolia Willis L. Jepson 1893-5-8 Napa near Angwin's (Howell Mt); Napa River Basin, Howell Mt. Comment
  CAS-BOT-BC136750  Amelanchier utahensis Carl B. Wolf 1928-5-4 1868 Napa Mt. St. Helena Comment
  UC659018  Ammi majus Mildred E. Mathias 1937-7-23 1316 Napa roadside n. of Vallejo on rd. to Napa Comment
  UCD127162  Ammi majus R. Tofsrud Date unknown s.n. Napa location unknown. Comment
  JEPS106984  Amorpha californica var. napensis Gordon E. McBride 2001-5-10 s. n. Napa on both sides of Dry Creek Road about 100 yds E of the interection with Wall Road, about five mi W of Oakville (just N of Yountville) Comment
  UCR23952  Amorpha californica var. napensis John C. Roos 1939-4-29 289 Napa North Coast Range, Pacific Union College, Angwin 549 Comment
  CDA27221  Ampelodesmos mauritanicus G. F. Hrusa 2000-7-26 15683 Napa North Coast Biodiversity Arena; Old Toll House Rd. at SW base of Mt. St. Helena, approx. 1/2 mi. S of Hwy 29. Sheet 2 of 3. Comment
  UCD56008  Ampelodesmos mauritanicus R. Tofsrud 1941-5-1 s.n. Napa Mt. St. Helena. Comment
  UCD169886  Amsinckia intermedia Daniel Potter; N Khuu, C Donkers, A Yip, M Simon 2015-2-28 725 Napa Knoxville Wildlife Area. 352 Comment
  UCD48652  Amsinckia intermedia Anne Mini; K. McBride, S. Snow, K. Ehmsen 2001-4-14 1 Napa Quail Ridge Reserve, Decker Canyon, along S. Decker Canyon Rd., N of jct with Cut-Off Rd., S of jct with N. Decker Canyon Rd., approximately 5 m. W of screen shed and about 45 ft. from road. 152 Comment
  JEPS20860  Amsinckia intermedia W. L. Jepson 1915-4-23 6253 Napa Coun Valley; Napa Range, Coun Valley Comment
  RSA195307  Amsinckia intermedia Gilbert Muth 1967-4-23 648 Napa Spring Mountain Road, St. Helena. Comment
  UC1094053  Amsinckia intermedia Francia Chisaki 1954-4-15 594 Napa 12.7 mi n of its cut-off from Highway #29 (on Silverado Trail); Silverado Trail Comment
  UC1191038  Amsinckia intermedia Francia Chisaki 1954-4-15 596 Napa about 2 mi s Calistoga (on Silverado Trail); Silverado Trail Comment
  UCD70458  Amsinckia intermedia M. Thibodeau 1995-4-15 10 Napa W. of city of Winters, along hwy 128. Quail Ridge Reserve; 70m E of main cabin. 274 Comment
  UC1191037  Amsinckia menziesii var. menziesii Francia Chisaki 1954-4-15 597 Napa 2 mi s of Calistoga (on Silverado Trail); Silverado Trail 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
  UCD170378  Anaphalis margaritacea Daniel Potter; N Khuu 2016-5-8 875 Napa Knoxville Wildlife Area, west of Berryessa-Knoxville Road along trail from Zim Zim Falls trailhead to lower Nevada Creek, west of tributary to Nevada Creek. 277 Comment
  UCD18094  Ancistrocarphus filagineus Ellen Dean; with PLB 102 class 2000-4-29 750 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
  UC648280  Angelica californica Alice Eastwood, John Thomas Howell 1939-6-11 7428 Napa w of Calistoga Comment
  UCD127211  Angelica californica Glen Holstein 1977-5-11 s.n. Napa Along State Highway 121, 0.5 mile south of intersection with Wooden Valley Road. Comment
  UCD168522  Angelica lineariloba Stephen P. Rae; A. Solomeshch 2007-5-25 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
  UC127125  Angelica tomentosa Harley P. Chandler Sep 7 1906-Sep 14 1906 7119 Napa Howell Mountain, Alta Loma Ranch Howell Mountain; , Alta Loma Ranch 487 Comment
  UCD126260  Angelica tomentosa G. F. Hrusa; R. Gross 1996-6-30 13071 Napa along Ida Clayton Rd on Foote Ranch. 700 Comment
  HSC71976  Angelica tomentosa J. M. DiTomaso 1980-7-8 1740 Napa N side of Mt. St. Helena at 48.45 mi mark on Hwy 29 610 Comment
  SBBG8596  Anisocarpus madioides H. and M. Dearing 1939-5-1 3241 Napa St Helena Comment
  SEINET3918488  Anthoxanthum odoratum Beecher Crampton 1953-6-2 1434 Napa 8 miles south of Middletown, small meadow along Highway 53.; 0 Comment
  UCD127197  Anthriscus caucalis Joseph M. DiTomaso 1976-4-10 412 Napa on Highway 128, 4 miles west of Monticello Dam at Lake Berryessa. 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
  UCD160733  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Ellen Dean 2015-5-23 8785 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. 219 Comment
  UCD170280  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Daniel Potter; Ninh Khuu, Sarah Dohle, James Shoulders 2015-6-13 814 Napa Knoxville Wildlife Area, along Nevada Creek. 471 Comment
  RSA80428  Antirrhinum virga Joseph A. Ewan 1933-9-17 8017 Napa Near Stevenson Monument, Mt St Helena Comment
  CAS-BOT-BC451168  Aphanes Peter H. Raven 1953-3-29 5221 Napa Hills e. of Imola 121 Comment
  JEPS84629  Apiastrum angustifolium John W. Willoughby 1977-4-20 2173 Napa Vaca Mountains, w side of Blue Ridge, near latitude of Mount Vaca (just south) Blue Ridge; Vaca Mountains, Blue Ridge 731 Comment
  UC1197615  Apocynum androsaemifolium Joseph P. Tracy 1899-7-3 435 Napa 3 - 4 mi. e. of Angwin's (on hills at head of Moore's Creek, Howell Mt.); North Coast Ranges, Howell Mt., Moore's Creek 457 Comment
  UC623308  Apocynum androsaemifolium H. L. Mason 1939-5-18 12103 Napa near summit of Wooden Valley Grade Comment
  CAS-BOT-BC392031  Aquilegia eximia H. M. Hall 1923-10-14 11944 Napa 6 mi. n. of Pope Valley Comment
  UCR44910  Aquilegia eximia L. F. LaPre, R. Bjork 1986-7-13 s.n. Napa Inner North Coast Ranges, Hunting Creek, 0.5 mi south of Dunnigan Hill. SE of Clear Lake, near the county line. 335 Comment
  UC1051669  Aquilegia formosa Peter Kamb and Francia Chisaki 1950-4-22 1757 Napa w side of Wooden Valley on Claifornia Hwy 37 243 Comment
  UCD95543  Aquilegia formosa R. H. Miller 1949-5-8 46 Napa Beside Highway 37, about 10 miles northeast of Napa. Comment
  CDA24648  Arabis glabra var. glabra R. Lawley 1967-7-1 Napa 1806 Jefferson, Napa. 0 Comment
  UCD15004  Arbutus menziesii Wesley Ebert 1977-4-16 35 Napa Off east side of Highway 128 above East Bull Canyon, 6 miles southwest of Monticello Dam. 213 Comment
  UCSB11771  Arbutus menziesii Haller, John 1961-6-18 Napa Las Posadas State Forest, 1.5 mi. S of Angwin on Howell Mountain Plateau 518 Comment
  HSC7610  Arctostaphylos canescens C. B. Wolf 1928-2-25 1503 Napa 1 mi. N of summit of Mt. St. Helena grade Comment
  JEPS116548  Arctostaphylos canescens Jake Ruygt 2006-3-14 4958 Napa Monticello Road about 0.1 mile east of Leoma Lakes Road. Mount George 7.5' Quad. Comment
  CAS-BOT-BC23954  Arctostaphylos canescens subsp. canescens John Thomas Howell 1926-3-21 1703 Napa Mt. St. Helena along trail to summit 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-BC23960  Arctostaphylos canescens subsp. canescens Alice Eastwood 1922-5-5 11300 Napa Mt. St. Helena Comment
  CAS-BOT-BC23963  Arctostaphylos canescens subsp. canescens C. Hart Merriam 1907-7-27 s.n. Napa Mt. St. Helana Comment
  CAS-BOT-BC23986  Arctostaphylos canescens subsp. canescens C. B. Wolf 1928-2-25 1502 Napa 1 mi. north of summit of Mt. St. Helena Comment
  CAS-BOT-BC24000  Arctostaphylos canescens subsp. canescens Alice Eastwood 1915-6-7 4697 Napa Mt. St. Helena Comment
  CDA11262  Arctostaphylos canescens subsp. canescens G. F. Hrusa, G. L. Webster, J. M. Tucker 1994-10-29 11917 Napa North Coast Biodiversity Arena; Mt. George Napa Land Trust Reserve. Comment
  RSA52469  Arctostaphylos canescens subsp. canescens I. L. Wiggins 1949-4-30 12082 Napa On saddle bout 1.5 mi. from summit of Mt. St. Helena. Comment
  UC549704  Arctostaphylos canescens subsp. canescens J. E. Adams 1934-3-10 644 Napa Mt. St. Helena Comment
  UC674740  Arctostaphylos canescens subsp. canescens W. K. Fisher 1900-9-9 Napa Mt. St. Helena 853 Comment
  UC674755  Arctostaphylos canescens subsp. canescens E. A. Goldman 1907-12-29 69 Napa Mt. St. Helena Comment
  JEPS38619  Arctostaphylos columbiana Anson S. Blake Apr. 1923 Napa Moore Creek Howell Mountain Comment
  UCD51055  Arctostaphylos glandulosa Heidi E. M. Dobson 1978-4-8 317 Napa East slope of Mt. Veeder. Comment
  UCD51495  Arctostaphylos glandulosa Collector unknown Date Unknown Napa Comment
  UCD82609  Arctostaphylos glandulosa Ellen Dean; T. Starbuck 2009-5-4 5547 Napa Ridge above Lake Hennesy and Hwy 128 to the E of the Napa Valley. 426 Comment
  CAS-BOT-BC24866  Arctostaphylos glandulosa subsp. cushingiana John Thomas Howell 1930-3-23 4562 Napa About 1 mi. se. of Mt. St. Helena Inn, near Mt. St. Helena. Comment
  RSA626916  Arctostaphylos glandulosa subsp. cushingiana Jon E. Keeley 1993-9-11 24802 Napa Chaparral on southeast side of Mt. Helena. 1020 Comment
  CAS-BOT-BC23145  Arctostaphylos glandulosa subsp. glandulosa Carl B. Wolf 1928-5-4 1861 Napa Mt. St. Helena Comment
  CAS-BOT-BC23149  Arctostaphylos glandulosa subsp. glandulosa Alice Eastwood 1918-9-3 7941 Napa Mt. St. Helena Comment
  CAS-BOT-BC23150  Arctostaphylos glandulosa subsp. glandulosa Alice Eastwood 1915-6-7 4703 Napa Mt. St. Helena 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
  JEPS49536  Arctostaphylos glandulosa subsp. glandulosa W. L. Jepson 1938-9-28 19043 Napa La Jota Mesa, Howell Mt. Comment
  JEPS68363  Arctostaphylos glandulosa subsp. glandulosa L. R. Heckard 1972-6-26 2997 Napa rocky flat near radar station (se of lookout on top of mt.); Mt. St. Helena 1219 Comment
  SBBG5421  Arctostaphylos glandulosa subsp. glandulosa Milton Workman 1953-3-23 26 Napa Mix Cyn Comment
  CAS-BOT-BC24430  Arctostaphylos manzanita R. H. Halse 1987-2-22 3377 Napa Along State Hwy. 29 about one third mi. n. of its junction with Tubbs Lane, just n. of Calistoga. 51 Comment
  CHSC23436  Arctostaphylos manzanita Robert A. Schlising; Glenn Keator 1962-1-25 2024 Napa California Coast Ranges. NW corner Napa County. Mt. Saint Helena Comment
  POM367348  Arctostaphylos manzanita H. de Forest 1930-3-23 s.n. Napa Mt. St. Helena. Ridge SE from mt. 701 Comment
  UCR43195  Arctostaphylos manzanita 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
  CAS-BOT-BC38917  Arctostaphylos manzanita subsp. elegans John Thomas Howell 1926-10-3 2198 Napa Summit of Mt. St. Helena Comment
  JEPS122812  Arctostaphylos manzanita subsp. manzanita Jake Ruygt 2007-1-21 5107 Napa Pope Valley Road just north of tributary of Pope Creek. QUAD: Aetna Springs. Comment
  UCD82605  Arctostaphylos manzanita subsp. manzanita Ellen Dean; T. Starbuck 2009-5-4 5543 Napa Ridge above Lake Hennesy and Hwy 128 to the E of the Napa Valley. 426 Comment
  CAS-BOT-BC43832  Arctostaphylos stanfordiana H. E. McMinn 1922-6-8 173 Napa Howell Mt. 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-BC43840  Arctostaphylos stanfordiana Alice Eastwood 1922-3-25 11088 Napa Calistoga Comment
  CAS-BOT-BC43843  Arctostaphylos stanfordiana John Thomas Howell 1926-3-21 1704 Napa Mt. St. Helena Comment
  CAS-BOT-BC43844  Arctostaphylos stanfordiana Alice Eastwood 1923-5-9 11761 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-BC43855  Arctostaphylos stanfordiana H. E. McMinn 1926-1-2 1630 C Napa Mt. St. Helena Comment
  CAS-BOT-BC43859  Arctostaphylos stanfordiana Peter H. Raven 1951-8-21 3875 Napa Mt. Veeder 792 Comment
  CAS-BOT-BC43865  Arctostaphylos stanfordiana Beecher Crampton 1962-5-16 6429 Napa 1/2 mi. west of aetna Springs. Comment
  CDA11264  Arctostaphylos stanfordiana G. F. Hrusa, G. L. Webster, J. M. Tucker 1994-10-29 11919 Napa North Coast Biodiversity Arena; Mt. George Napa Land Trust Reserve. Comment
  JEPS38678  Arctostaphylos stanfordiana Willis L. Jepson 1893-5-4 14724 Napa summit of mt. Napa River Basin, Mt. St. Helena Comment
  JEPS38680  Arctostaphylos stanfordiana W. L. Jepson 1916-8-6 6827 Napa summit Napa Range, Howell Mt. Comment
  LA42285  Arctostaphylos stanfordiana Lewis S. Rose; 1939-4-16 39071 Napa 4 mi. NE of Napa 198 Comment
  SD60210  Arctostaphylos stanfordiana Ira L. Wiggins 1932-3-12 5767 Napa Hillside between Calistoga and Franz Valley Comment
  UC1198657  Arctostaphylos stanfordiana Joseph P. Tracy 1942-2-23 17057 Napa Wooden Valley Rd 4 mi ne Napa City (along creek); Sarco Creek 91 Comment
  UC1303138  Arctostaphylos stanfordiana Ira L. Wiggins 1932-3-12 5767 Napa hillside between Calistoga and Franz Valley Comment
  UC205100  Arctostaphylos stanfordiana Katharine Brandegee Napa Anguins Comment
  UC402905  Arctostaphylos stanfordiana Mrs. H. P. Bracelin 1930-3-23 Napa flanks of mt. 1 1/2 mi se Mt. St. Helena Inn; Mt. St. Helena Comment
  UC924271  Arctostaphylos stanfordiana H. S. Reed 1939-4-16 229 Napa Napa Hills Comment
  UCD53846  Arctostaphylos stanfordiana Roman Gankin 1966-2-26 679 Napa Ca. 100 yards up hill from gate at roadway; property west of Macdonald Ranch; Las Posadas State Forest. Comment
  JEPS120405  Arctostaphylos stanfordiana subsp. decumbens Jake Ruygt 2007-3-3 5123 Napa About 1/2 mile SE of Las Posadas Fire Station. Comment
  RSA293009  Arctostaphylos stanfordiana subsp. stanfordiana Reino Alava, Lincoln Constance, Robert Ornduff, Aloha Alava 1957-5-5 A- 750 Napa Mt. Saint Helena. 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
  HSC7715  Arctostaphylos viscida Greg Bos 1963-3-3 27 Napa Putah Creek entrance to Lake Berryesa 152 Comment
  UCD20647  Arctostaphylos viscida R. J. Blenkush; J. H. Richards 2000-1-29 41 Napa McLaughlin Reserve. Collected at the intersection of Hunting Creek Road with Devilhead Road. 536 Comment
  JEPS106408  Arctostaphylos viscida subsp. pulchella Jake Ruygt 1996-2-24 3518 Napa NE of Big Basin, along Pocock Creek Rd. 426 Comment
  UC763122  Arctostaphylos viscida subsp. pulchella R. F. Hoover 1941-4-27 4950 Napa e side Mt. St. Helena Comment
  JEPS38759  Arctostaphylos viscida subsp. viscida W. L. Jepson 1920-7-12 9067 Napa near old Chiles Mill; Chiles Creek Comment
  RSA388862  Arctostaphylos viscida subsp. viscida R. W. Brooks 1975-4-26 54 Napa 12 miles north from State Highway 128, Pope Valley. 762 Comment
  UC1388339  Arctostaphylos viscida subsp. viscida Freed W. Hoffman 1947-9-12 1371 Napa near Black Oak Villa; North Coast Ranges, Butts Canyon Comment
  HSC97524  Aristolochia californica Andrew Joseph Eckert 2001-3-3 7 Napa Alston Park, 1.5 mi. N of Redwood Creek Rd. on W side of Napa Valley 122 Comment
  RSA82765  Aristolochia californica W. M. Grannell 1950-3-10 8 Napa Putah Canyon Comment
  SFV957  Aristolochia californica H. Dearing, M. Dearing 1940-3-20 4147 Napa Near Napa. Comment
  UC1198120  Aristolochia californica Joseph P. Tracy 1933-6-2 12492 Napa along Napa R. e. of St. Helena 76 Comment
  UC543760  Aristolochia californica Herbert L. Mason 1928-4-13 4331 Napa hills between Santa Rosa and Calistoga Comment
  UC545801  Aristolochia californica Annetta M. Carter 1936-3-15 1040 Napa on rd. to Pope Valley 3.4 mi. out of Rutherford (Conn Creek Canyon); Conn Creek Canyon Comment
Read comments
Sep 12 2013
  RSA88576  Arnica discoidea L. S. Rose 1954-5-24 54049 Napa Summit, Wooden Valley grade, 6 miles N E of Napa. Comment
  JEPS104540  Artemisia douglasiana Jake Ruygt 1987-7-29 2090 Napa Napa River 50 yds. south of Third St.; east bank 2 Comment
  JEPS37057  Artemisia douglasiana W. L. Jepson 1939-9-12 19483 Napa w of St. Helena; Spring Mountain Comment
  JEPS104559  Asarum caudatum Jake Ruygt 1980-3-30 821 Napa Van Ness Canyon 609 Comment
  JEPS49872  Asclepias eriocarpa Alice King July 1919 Napa Van Ness Ranch Mt. St. Helena Comment
  CAS-BOT-BC478837  Asparagus officinalis Peter H. Raven 1955-8-27 8759 Napa Cuttings Wharf 3 Comment
  CAS-BOT-BC69616  Aspidotis densa Ira L. Wiggins 1949-4-30 12094 Napa Northeastern slopes of Mount St. Helena near highway between Calistoga and Middletown, near Lake County Line. 853 Comment
  RSA52712  Aspidotis densa I. L. Wiggins 1949-4-30 12094 Napa Northeastern slopes of Mount St. Helena near highway between Calistoga and Middletown, near Lake county border 854 Comment
  JEPS107260  Astragalus breweri Jake Ruygt 1993-4-12 3195 Napa south of James Creek Road and Butts Cany on Road. 213 Comment
  RSA739594  Astragalus breweri John Dittes 2003-4-5 2003 -13 Napa Inner N Coast Range, Napa Valley, 1.8 air miles NNW of Calistoga City Hall, 1 air mile NW of confluence of Napa River and Grnett Creek. 123 Comment
  JEPS107257  Astragalus claranus Jake Ruygt 1993-5-14 3261 Napa Lewelling Ranch, west end of Lewelling Lane, St. Helena 97 Comment
  JEPS107252  Astragalus gambelianus Jake Ruygt 1989-4-22 2284 Napa about 1/2 mile south of Monticello Dam on Vaca Mtns. 304 Comment
  UC1199089  Astragalus gambelianus Joseph P. Tracy 1899-6-14 400 Napa 3-4 mi e Angwin's Howell Mountain (on hills at head of Moore's Creek, Howell Mountain); Northern Coast Ranges, , head of Moore's Cree 365 Comment
  JEPS54656  Astragalus gambelianus W. L. Jepson 1924-4-6 10330 Napa Conn Valley Napa Range, Conn Valley (Napa Range, gravelly hillslope) Comment
  UCD104803  Astragalus gambelianus P. Rodriguez-Rojo 1997-4-20 s.n. Napa Lake Berryessa. Capell Creek. 155 Comment
  CAS-BOT-BC27753  Astragalus rattanii var. jepsonianus John Thomas Howell 1939-4-30 14625 Napa Walter Springs Comment
  CAS-BOT-BC27754  Astragalus rattanii var. jepsonianus John Thomas Howell 1939-4-30 14625 Napa Walter Springs Comment
  UCD164869  Astragalus rattanii var. jepsonianus Jake Ruygt 2012-11-3 5888 Napa Barton Hill, northwest shore of Lake Berryessa. 128 Comment
  CAS-BOT-BC17535  Athysanus pusillus Peter H. Raven 1950-4-15 1709 Napa Silverado Trail outside of Napa. 15 Comment
  JEPS53210  Athysanus pusillus W. L. Jepson 1937-4-10 18000 Napa Howell Mountain, Adam-and-Eve Ridge Adam-and-Eve Ridge; Howell Mountain, Adam-and-Eve Ridge Comment
  JEPS53211  Athysanus pusillus W. L. Jepson 1936-4-5 17416 a Napa Knoxville, ne Napa County Knoxville Comment
  UCD18050  Athysanus pusillus Ellen Dean; with Susan Harrison, Dean Enderlend, Joe Callizo 2000-3-18 602 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
  UCD161747  Athysanus pusillus Jake Ruygt 1994-2-26 3403 Napa Chiles Canyon at marker 3.0, 0.4 mile to Chiles Valley Road. 274 Comment
  POM350406  Baccharis pilularis J. T. Howell 1932-10-8 10802 Napa Napa River levee at Cuttings Wharf 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
  RSA136311  Baccharis salicifolia John H. Thomas 1955-5-21 5155 Napa Along State Highway No. 128, about 4.5 miles south of Monticello. 168 Comment
  CAS-BOT-BC16524  Barbarea orthoceras Milo S. Baker 1926-4-10 204 Napa The Crater - 3 miles south of Saint Helena Inn. Comment
  CAS-BOT-BC16527  Barbarea orthoceras David D. Keck 1931-4-2 1015 Napa Wooden Valley Grade, west side of Napa Range, 5 miles northeast of Napa. 170 Comment
  JEPS106877  Berberis aquifolium var. dictyota Jake Ruygt 1981-7-23 1081 Napa north of Berryessa Peak, Blue Ridge 731 Comment
  UCD161604  Berberis aquifolium var. dictyota Jake Ruygt 1999-5-1 4145 Napa Blue Ridge above Gosling Canyon. 792 Comment
  CAS-BOT-BC75847  Berberis pinnata Ira L. Wiggins 1949-4-30 12089 Napa Eastern flank of Mount Saint Helena. 914 Comment
  JEPS120400  Bergia texana Jake Ruygt 1998-12-7 4120 Napa About .15 miles west of boat ramp at Lake Hennessey. 94 Comment
  RSA769216  Bergia texana L. Ahart 2009-10-27 16485 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 air miles northwest of Winters 130 Comment
  UCD167067  Bergia texana Jake Ruygt 2001-8-4 4327 Napa South shore of Lake Hennessey near boat ramp. 94 Comment
  UCD75842  Boechera arcuata Jake Ruygt 2003-4-22 4504 Napa about 2 miles north of Mays flat near the top of the Blue Ridge. 731 Comment
  UCD74382  Boechera breweri Jake Ruygt 2006-4-29 5005 Napa Near Palisades Trail, S of Table Rock. Detert Reservoir. 606 Comment
  CAS-BOT-BC15944  Boechera breweri subsp. breweri Peter H. Raven 1951-6-10 2946 Napa Near Calistoga Palisades. 792 Comment
  JEPS110704  Boisduvalia glabella Jake Ruygt 1981-7-31 1084 Napa Soscol Plain 4 Comment
  CHSC102271  Bolboschoenus maritimus subsp. paludosus Lowell Ahart 2009-10-12 16460 Napa Below the high water line of Lake Berryessa, along Capell Creek south 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
  JEPS106778  Brassica nigra Jake Ruygt 1996-6-24 3760 Napa Jamieson Vineyards, Jameson Canyon. 79 Comment
  UCD47948  Brassica nigra Jessica Westbrook; M. Disney, S. Ratay, S. Wathen, A. Houser, R. Wolfson 2000-4-22 5 Napa Napa Co, McLaughlin Reserve, Old Knoxville Townsite, 0.10 miles north of Berryessa-Knoxville Rd along Old Knoxville Rd. 396 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-BC482166  Brodiaea appendiculata W. L. Jepson 1923-6-3 9981 Napa A little swale in the Napa Valley, not far from the mouth of Conn Creek Comment
  JEPS7654  Brodiaea elegans subsp. elegans W. L. Jepson 1918-6-24 7665 Napa near Toll House; Mount Saint Helena Comment
  UCD160777  Brodiaea elegans subsp. elegans Ellen Dean; D. Potter, D. Hickson, R. Ruygt, C. Donkers 2015-5-2 8657 Napa Knoxville Wildlife Area. California Dept. of Fish and Wildlife public lands. Vicinity of headwaters of Nevada Creek. NE corner of land parcel. 601 Comment
  RSA376767  Brodiaea elegans subsp. elegans Robert Gustafson, Don Reynolds 1983-6-7 2742 Napa Snell Valley Road, about 1 mile northeast from the jct of Butts Canyon Rd. Comment
  RSA734159  Brodiaea laxa Keith E. Hoffmaster 1946-3-23 1206 Napa Napa range, along Napa-Monticello road Comment
  CDA10879  Bromus carinatus G. F. Hrusa, M. Rejmanek 1993-5-15 10974 Napa University of California, Quail Ridge Reserve betw. Hwy 128 and Lake Berryessa. Comment
  UCD36937  Bromus carinatus Beecher Crampton 1956-5-25 3457 Napa Vaca Mountains, head of Markley Canyon. Comment
  UCD60199  Bromus catharticus var. elatus Peter H. Raven 1957-5-5 10788 Napa Calistoga. 91 Comment
  CAS-BOT-BC155987  Bromus diandrus Peter H. Raven 1952-5-29 4084 Napa Napa River 1 mile north of Napa. 60 Comment
  CHSC25161  Bromus diandrus J. E. Beitler 1970-4-19 37 Napa Around York Creek bridge W. side of Spring Mountain Road, ca. 1.7 mi. N.W. of junction of Spring Mountain Road and York Lane. St. Helena. Comment
  UC60218  Bromus diandrus Willis L. Jepson Napa Napa River Basin, Napa Valley Napa Valley; Napa River Basin, Napa Valley Comment
  CAS-BOT-BC155030  Bromus hordeaceus Peter H. Raven 1953-5-2 5359 Napa Yountville. Along railroad tracks. 76 Comment
  UCD58629  Bromus hordeaceus A. A. Beetle; G. L. Stebbins Jr. 1942-6-3 3542 Napa 1 mile south of Napa-Lake County line. Rt. 29. North slope of Mt. St. Helena. Comment
  JEPS76000  Bromus japonicus W. L. Jepson 1936-6-1 17591 Napa w side of Four Corners (Howell Mt.); Howell Mountain, Four Corners Comment
  UCD58901  Bromus laevipes Beecher Crampton 1957-6-4 4107 Napa Above Capell Creek. North end of Capell Valley. Comment
  UCD58948  Bromus laevipes J. Street 1950-1 s.n. Napa 4 mi. E of Rutherford. Comment
  UCD121145  Bromus pseudolaevipes Ellen Dean; G. Golden, C. Loughran, PLB 102 interns 2012-4-29 7345 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
  CAS-BOT-BC161831  Bromus rubens Peter H. Raven 1953-4-2 5287 Napa Burn east of Tulucay Creek. 426 Comment
  UCD17981  Bromus rubens Ellen Dean; with Plant Biology 102 class 2001-4-14 707 Napa SE corner of Lake Berryessa, just W of Monticello Dam. Quail Ridge Reserve. Along North Decker Canyon Trail, N of trail. 182 Comment
  UCD168574  Bromus sterilis Stephen P. Rae; A. Solomeshch 2007-4-10 s.n. Napa Lieff property east of Rutherford, 40 Auberge Road above Rutherford Hill Road, just north of the intersection of Silverado Trail and Highway 128. 165 Comment
  UCD81810  Bromus sterilis Ellen Dean; Stephen Rae 2009-4-21 5437 Napa Along Friesen Lakes Road, NW of Anguin. 563 Comment
  CDA5378  Buddleja davidii H. Stabo 1965-8-26 Napa Yountville Crossroads. 0 Comment
  CAS-BOT-BC438470  Calandrinia ciliata David D. Keck 1931-4-2 1055 Napa Wooden Valley Grade, west side of Napa Range, 8 miles NE. of Napa 170 Comment
  CAS-BOT-BC273232  Calendula arvensis Peter H. Raven 1951-6-24 3014 Napa Brown's Valley 91 Comment
  UCD159531  Calendula officinalis D. S. Park 2011-4-11 279 Napa Linda Vista Ave. and Ceriani Ct. Weed in lawn. 33 Comment
  JEPS42825  Callitriche longipedunculata Willis L. Jepson 1893-4-30 13819 Napa Calistoga; Napa River Basin, Napa Valley Comment
  HSC81868  Calochortus amabilis Thomas W. Nelson, Jane P. Nelson 1980-5-3 5140 Napa Along Butts Canyon Rd. N of Pope Valley 274 Comment
  JEPS61629  Calochortus amabilis W. L. Jepson 1943-5-15 20775 Napa Knoxville Ridge Comment
  RSA10700  Calochortus amabilis Carl B. Wolf 1928-5-3 1787 Napa 5 miles north of Calistoga, Mt. St. Helena Grade. Comment
  UC1134510  Calochortus amabilis A. Lewis 1932-5-18 96 Napa Dry Creek Napa Quad. 152 Comment
  UC130972  Calochortus amabilis Katharine Brandegee 1909-6-1 Napa Pope Valley Grade from Calistoga 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
  UCD139478  Calochortus amabilis H. Popenoe 1949-5-1 19 Napa one mile from Pope Valley on road to St. Helena. Comment
  UCD139481  Calochortus amabilis R. L. Smith 1948-5-8 s.n. Napa 6 miles north of Aetna Springs, Pope Valley. Comment
  UCD48260  Calochortus amabilis B. Takahashi; S. Burgess, A. Ryan, J. Pierner, A. Hufton 2000-4-29 1 Napa Yolo Co/Napa Co line; McLaughlin Reserve, 1 mile (as the crow flies) N of the old town of Knoxville. 609 Comment
  UCD73382  Calochortus amabilis 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
Read comments
Nov 1 2011
  SEINET12049813  Calochortus amabilis F. H. Utech, Knight, W.; Knight, I.; Edwards, S. 1986-1 86 -309 Napa Robert Lewis Stevenson State Park trail to the Pallisades, trailhead on CA 29 near St. Helena Creek 750 Comment
  SEINET8194296  Calochortus amabilis M. Ackley 1968-5-12 1191 Napa Napa Valley. Comment
  JEPS128394  Calochortus luteus Adam C. Schneider with Dick O'Donnell 2013-5-28 244 Napa Northern edge of Cedar Roughs Wilderness Area, south of Pope Canyon Rd, 2.5 miles west of junction with Berryessa Knoxville Road Comment
  SEINET4169985  Calochortus pulchellus Unknown 1952-4-20 71 Napa Samuel Springs, 7 mi N. W. of Monticello Comment
  CAS-BOT-BC483610  Calochortus tolmiei Ira L. Wiggins 1949-4-30 12092 a Napa Mount St. Helena near Lake County Line Comment
  CAS-BOT-BC483613  Calochortus tolmiei L. R. Abrams 1928-5-4 12291 Napa 4 miles south of Middletown Comment
  CAS-BOT-BC132622  Calochortus uniflorus David D. Keck 1931-4-4 1097 Napa Geysers just NW. of Calistoga, northwestern Napa County 110 Comment
  JEPS113986  Calochortus uniflorus Jake Ruygt 1981-5-6 1011 Napa Highway 28, 0.2 mile south of Lower Chiles Valley Road. Chiles Valley 7.5' Quad. Comment
  JEPS61742  Calochortus uniflorus W. L. Jepson 1924-4-6 10312 Napa Conn Valley Napa Range 914 Comment
  UC3489  Calochortus uniflorus Edw. L. Greene 1892-4-20 Napa Calistoga Comment
  UCSB646  Calochortus venustus Keator, Glenn 1958-6-16 Napa Near Lake Hennessy, Napa Range Comment
  UC1876218  Calycadenia fremontii Gerald D. Carr 1971-9-20 666 Napa 4.2 mi N of Spanish Flat on Knoxville-Berryessa Rd. 152 Comment
  UC1876231  Calycadenia fremontii Gerald D. Carr 1971-8-6 616 Napa Lower Chiles Valley Rd., 1.3 mi N of Hwy 128. Comment
  UC1876230  Calycadenia fremontii Gerald D. Carr 1971-8-6 617 Napa Butts Canyon Rd., 1.3 mi S of Snell Valley Rd. Comment
  UC1876236  Calycadenia fremontii Gerald D. Carr 1971-10-23 681 Napa 1/4 mi W of Berryessa-Knoxville Rd on Hwy 128. Comment
  UC1876150  Calycadenia multiglandulosa Gerald D. Carr 1971-6-17 566 Napa Jct. of Howell Mt., Deer Park, and White Cottage Rds. Comment
  JEPS38548  Calycadenia multiglandulosa W. L. Jepson 1944-7-30 27542 Napa flat below Four Corners, Howell Mt., Napa Valley Napa Valley, Howell Mt. Comment
  UCD69063  Calycadenia multiglandulosa P. Rodriguez-Rojo 1997-5-31 Napa Butts Canyon Rd. Serpentine barrens. UTM: 10SEN4882 285 Comment
  JEPS38539  Calycadenia pauciflora W. L. Jepson 1916-8-6 6831 Napa Howell Mt. Comment
  JEPS38588  Calycadenia pauciflora W. L. Jepson 1897-7-12 Napa Samuels Springs Comment
  RSA255599  Calycadenia pauciflora Gerald D. Carr 1971-8-6 616 Napa Lower Chiles Valley Road, 1.3 miles north of Hwy. 128 Comment
  UCD129824  Calycadenia pauciflora Gerald D. Carr 1971-10-23 683 Napa junction of Lower Chiles Valley and Pope Valley Roads, Comment
  UCD129903  Calycadenia pauciflora Gerald D. Carr 1971-9-20 666 Napa 4.2 miles north of Spanish Flat of Knoxville-Berryessa Road. 152 Comment
  UC1195667  Calycadenia pauciflora A. R. Kruckeberg 1947-6-15 1491 Napa .7 mi w, on Knoxville-Lower Lake Road Knoxville Comment
  UC1876269  Calycadenia pauciflora Gerald D. Carr 1971-9-20 667 Napa 1.8 mi SE of Lake Co. line on Morgan Valley Rd. 609 Comment
  UCD129844  Calycadenia pauciflora Gerald D. Carr 1972-8-9 727 Napa Mysterious Creek Road, 11.3 miles southwest of Berryessa-Knoxville Road. Via Devilhead Road. Comment
  UC30763  Calycadenia truncata W. L. Jepson 1892-10-22 Napa near St. Helena; Park Hill Comment
  UC726256  Calycadenia truncata A. A. Heller 1941-9-22 16317 Napa 1 mi n of, on roadside bank Yountville Comment
  CAS-BOT-BC271551  Calycadenia truncata subsp. truncata C. C. Parry 1881-1-1 s.n. Napa Calistoga Comment
  CAS-BOT-BC271566  Calycadenia truncata subsp. truncata John Thomas Howell 1930-7-13 5344 Napa Lower slopes of Mt. St. Helena Comment
  CAS-BOT-BC271558  Calycadenia truncata subsp. truncata H. M. Hall 1924-9-30 s.n. Napa St. Helena Comment
  CAS-BOT-BC271559  Calycadenia truncata subsp. truncata H. M. Hall 1924-9-30 s.n. Napa Gill's, Howell Mt. Comment
  CAS-BOT-BC90961  Calycanthus occidentalis Mrs. H. C. Cantelow 1940-4-21 2993 Napa Monticello Grade. 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
  UCD13154  Calycanthus occidentalis Kathleen Worden 1981-5-24 12 Napa Sage Canyon Rd. 1.2 miles east of intersection with Silverado Trail. Comment
  UCD15499  Calycanthus occidentalis Ted Graber 1984-5-12 28 Napa 1 mile west from Conn Dam on highway 128. 60 Comment
  CAS-BOT-BC221552  Calystegia collina subsp. collina R. Bacigalupi; R. S. Ferris; Ira L. Wiggins 1933-6-2 6682 Napa Butt's [Butts] Canyon, 10 mi. N. of Howell Mt. Comment
  CAS-BOT-BC221555  Calystegia collina subsp. collina R. K. Brummitt; A. Wolf; R. W. Howe 1998-5-15 19848 Napa 10 km NE of St. Helena, on Chiles and Pope Valley Road 300 Comment
  CAS-BOT-BC436420  Calystegia occidentalis Peter H. Raven 1952-5-29 4085 Napa Napa River, 1 mi. N of Napa 60 Comment
  JEPS129054  Calystegia purpurata Jake Ruygt 2016-5-14 6254 Napa Near south base of Snell Peak. Aetna Springs 7.5' Quad. Comment
  CAS-BOT-BC224631  Calystegia purpurata subsp. purpurata Ira L. Wiggins 1949-4-30 12080 Napa Between Calistoga and Middletown Comment
  JEPS47832  Calystegia subacaulis Willis L. Jepson 1893-4-24 14524 Napa Hills easr of St. Helena to Conn Valley, Napa River Basin Comment
  UC23177  Calystegia subacaulis Willis L. Jepson 1894-5-1 Napa Conn Valley , Conn Valley (Napa River Basin) Comment
  JEPS31722  Camissonia contorta Willis L. Jepson 1893-6-26 14478 Napa Howell Mt. Napa River Basin Comment
  UCD32903  Camissoniopsis hirtella Beecher Crampton 1965-6-30 7395 Napa Solano-Napa Counties: Vaca mountains, summit of Mt. Vaca. 859 Comment
  JEPS101436  Campanula griffinii Dean W. Taylor 1998-6-18 16676 Napa ridge dividing Butts Canyon and Spanish Valley 502 Comment
  CAS-BOT-BC37588  Cardamine californica C. B. Wolf 1928-2-25 1489 Napa Mount St. Helena Grade 2 miles below Hawkins Mountain Camp. Comment
  CDA12074  Cardamine californica G. F. Hrusa, J. Messina 1989-3-3 5879 Napa North Coast Biodiversity Arena; Hwy. 128 W of Monticello Dam (Lake Berryessa). Comment
  CHSC31984  Cardamine californica L. Ahart 1976-3-7 1026 Napa Along edge of creek ca. 2 mi sw of Monticellow Dam. 152 Comment
  RSA369339  Cardamine tenella Dr H. de Forest 1930-3-23 s.n. Napa Mt. St. Helena. Ridge SE from mt. 701 Comment
  CDA6880  Carduus pycnocephalus T. C. Fuller 1958-5-1 451 Napa State Highway 53 to Middletown, 2.5 miles north of Calistoga. 0 Comment
  CAS-BOT-BC281733  Carduus pycnocephalus Ernest L. Place 1946-4-30 s.n. Napa St Helena Sanitarium Comment
  UCD85577  Carduus pycnocephalus T. C. Fuller 1958-5-1 451 -58 Napa State Highway 53, 2.5 miles north of Calistoga. 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
  UCR43086  Carex L. F. LaPre 1986-5-6 s.n. Napa Inner North Coast Ranges, Cedar Creek, 3.5 mi SW of Knoxville & c. 0.5 mi (air) west of Devilhead Road at the junction of the creek & a dirt road 550 Comment
  UC50828  Carex amplifolia J. P. Tracy 1902-5-21 1606 Napa 3-4 mi e Angwin's (head of Moore's Creek); Moore's Creek 365 Comment
  JEPS121335  Carex amplifolia Jake Ruygt 1992-5-2 2920 Napa Scott's Flat, Aetna Springs Rd. Comment
  UC826510  Carex barbarae Wilhelm N. Suksdorf 1913-7-24 619 Napa On a high bank of the Napa River below the town. Comment
  UCD161787  Carex bolanderi Jake Ruygt 1994-5-17 3384 Napa Linda Falls, Angwin. 402 Comment
  CAS-BOT-BC35072  Carex densa Peter H. Raven 1951-6-10 2948 Napa Crater Region of Palisades. 762 Comment
  UCD160768  Carex densa Ellen Dean; D. Potter, D. Hickson, R. Ruygt, C. Donkers 2015-5-2 8638 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-BC18901  Carex densa Betty H. Johnson 1958-6-20 646 Napa At Mt. Mill House, 6.4 miles SW of Middletown. Comment
  CAS-BOT-BC35069  Carex densa Lewis S. Rose 1935-6-4 35205 Napa East slope Mount St. Helena. Comment
  UCD161534  Carex densa Jake Ruygt 1990-4-14 2482 Napa Wooden Valley, north end of Wild Horse Valley Ranch. 195 Comment
  JEPS76001  Carex feta W. L. Jepson 1936-6-1 17590 Napa Napa Range, Howell Mountain, west side of Four Corners Four Corners; Napa Range, Howell Mountain, Four Corners Comment
  UC1158106  Carex feta Joseph P. Tracy 1950-5-23 18670 Napa La Jota Plateau Howell Mountain 518 Comment
  UC836001  Carex feta Wilhelm N. Suksdorf 1913-7-28 707 Napa n Napa Comment
  JEPS121322  Carex globosa Jake Ruygt 1984-3-31 1515 Napa Devils Canyon Comment
  CDA29152  Carex gracilior D. G. Kelch, Daniel Weinstein 2009-6-21 9 .45 Napa Near Skyline Park. Comment
  UCD168730  Carex multicostata Stephen P. Rae; A. Solomeshch 2007-5-25 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
  UC483315  Carex nudata Ira L. Wiggins 1932-3-12 5753 Napa 1 mi N of Calistoga (N Fork of Napa River) Comment
  CAS-BOT-BC119517  Carex nudata Beecher Crampton 1954-6-13 1952 Napa Sandy beach of Putah Creek, along St Hwy 128, 8 mi W of Winters. Comment
  JEPS121336  Carex nudata Jake Ruygt 1984-3-20 1506 Napa Bear Canyon Comment
  POM230030  Carex nudata Alice Eastwood, John Thomas Howell 1937-4-4 3826 Napa North of Wooden Valley. Comment
  UCD161614  Carex nudata Jake Ruygt 2002-3-23 4370 Napa Snell Valley, Missimer Wildflower Preserve. 219 Comment
  JEPS121327  Carex praegracilis Jake Ruygt 2002-4-1 4382 Napa Bothe State Park, north of office; parking area. Comment
  UCD161703  Carex praegracilis Jake Ruygt 2010-5-15 5554 -b Napa Butts Creek, Missimer / Snell Valley Preserve. 185 Comment
  UC1153782  Carex serratodens B. Crampton 1957-4-22 3942 Napa above Capell Creek (along new section Hwy. 128); Capell Valley Comment
  UC835992  Carex serratodens Mrs. H. C. Cantelow 1939-4-8 Napa 3 1/2 mi nw Knoxville Comment
  UCD140839  Carex serratodens Beecher Crampton 1957-4-22 3942 Napa above Capell Creek, north end of Capell Valley, along State Highway 128. Comment
  UCD20740  Carex serratodens E. Dean; w/ PLB 102 class 2002-4-4 1001 Napa McLaughlin UC Reserve. Along Knoxville-Berryesa road just W of turnoff to old town of Knoxville, S side of road. 426 Comment
  UC1152049  Carex serratodens Joseph P. Tracy 1949-4-22 18286 Napa e St. Helena; Conn Valley Reservoir Comment
  RSA783701  Carex subbracteata Jake Ruygt 2009-6-22 3221 -b Napa Yountville Ecological Reserve. Yountville Cross Road. Comment
  RSA296388  Castilleja affinis W. L. Jepson 1938-5-24 18839 Napa Near Four Corners, Howell Mountain. Comment
  RSA296442  Castilleja affinis R. W. Cruden 1967-5-27 1247 Napa About 3 miles northeast of Angwin, Ink Grade. 488 Comment
  POM182742  Castilleja affinis D. D. Keck 1931-4-2 1042 Napa Between Wooden Valley and Monticello, 10 miles from Napa, east base of Napa Range. Comment
  JEPS110635  Castilleja affinis subsp. affinis Jake Ruygt 1976-5-2 44 Napa 3.4 miles NE of Atlas Peak Rd. on Monticello Rd. 335 Comment
  JEPS110636  Castilleja affinis subsp. affinis Jake Ruygt 2001-3-31 4303 Napa ridge between Newell and American Canyon; Newell Open Space 198 Comment
  UC1301210  Castilleja affinis subsp. affinis Helen K. Sharsmith 1963-4-20 5355 Napa above Wooden Valley (on Monticello, e side of Napa Range); San Francisco Bay Region, Napa Range 243 Comment
  JEPS110630  Castilleja ambigua subsp. ambigua Jake Ruygt 1980-6-1 909 Napa Milton Rd. across from yacht club 0 Comment
  JEPS9136  Castilleja ambigua subsp. ambigua W. L. Jepson 1923-6-23 9979 Napa se of Yountville; Napa Valley Comment
  JEPS9137  Castilleja ambigua subsp. ambigua W. L. Jepson 1893-4-24 21401 Napa hills e St. Helena to Conn Valley Grade (Howell Mt. foothills); Napa River Basin, Howell Mt. 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
  UC1012334  Castilleja applegatei subsp. martinii F. W. Pennell and H. L. Mason 1940-5-21 25479 Napa s of Calistoga (Route 29) 152 Comment
  UC199390  Castilleja applegatei subsp. martinii H. P. Chandler 1907-5-14 7580 Napa White Sulphur Springs; St. Helena Comment
  UCD48228  Castilleja attenuata A. Ryan; S. Burgess, A. Hufton, J. Pierner, and B. Takahashi 2000-4-29 18 Napa Yolo Co/Napa Co line; McLaughlin Reserve, 1 mile (as the crow flies) N of old town of Knoxville. 609 Comment
  UCD170444  Castilleja exserta Daniel Potter; Ninh Khuu 2017-5-14 916 Napa Knoxville Wildlife Area, along Nevada Creek. 355 Comment
  JEPS85018  Castilleja exserta subsp. exserta Larry Heckard and Mary Ashton 1969-5-3 2226 Napa ca 7 mi ne Napa (Mead Ranch, off the Atlas Peak Rd, above and w of the meadow) 510 Comment
  UCD48224  Castilleja foliolosa R. Blenkush; S. Hee, C. McWhorter, J. Moeller 2000-4-22 7 Napa Northern Napa County, McLaughlin Reserve, first ridge south of Knoxville-Berryessa Road, on Devilhead Road. 487 Comment
  JEPS3673  Castilleja foliolosa C. R. Bell 1951-3-24 896 Napa 1.5 mi s Pacific Union College Comment
  UC147875  Castilleja minor subsp. spiralis J. P. Tracy 1905-7-6 2231 Napa 3-4 mi e Angwin's; Howell Mountain, Head of Moore's Creek 365 Comment
  UC1537565  Castilleja minor subsp. spiralis Gordon H. True Jr. 1937-7-30 825 Napa near Aetna Springs 365 Comment
  OBI60136  Castilleja rubicundula Joseph Andorfer Ewan 1937-5-23 10359 Napa Knoxville ridge above Knoxville Comment
  UC146239  Castilleja rubicundula subsp. lithospermoides J. P. Tracy 1902-5-15 1454 Napa 3-4 mi e Angwin's; Howell Mountain, Head of Moores Creek 457 Comment
  JEPS4495  Castilleja rubicundula subsp. lithospermoides Rimo Bacigalupi and J. R. Sweeney 1953-5-26 4124 Napa 5.5 mi n Calistoga (S.P. station crossing in town) (along road to Middletown (Calif Hwy 29)) 411 Comment
  JEPS110679  Castilleja rubicundula subsp. rubicundula Jake Ruygt 1980-6-17 923 Napa 23.4 miles north of Pope Canyon Rd. on Berryessa-Knoxville R 633 Comment
  JEPS11153  Castilleja rubicundula subsp. rubicundula W. L. Jepson 1938-6-11 19010 Napa Knoxville Ridge Comment
Read comments
Jun 18 2012
  JEPS2513 Image available Castilleja spiralis W. L. Jepson 1897-7-13 21113 Napa Butt's Canyon; ; Butt's Canyon, (Pope Valley to Coyote Valley), Napa Co. Comment
  JEPS58624  Castilleja subinclusa subsp. franciscana Willis L. Jepson 1894-11-5 Napa Bottle Mt. Napa River Basin, St. Helena Comment
  CAS-BOT-BC48942  Ceanothus cuneatus Peter H. Raven 1951-5-20 2850 Napa hills w. Oakville 548 Comment
  SACT002917  Ceanothus cuneatus John Willoughby 1976-6-4 Napa Collected near top of Mount Vaca, in chaparral. Young individual which germintaed following fire that occured here. Leaves toothed. Comment
  CAS-BOT-BC48937  Ceanothus cuneatus var. cuneatus D. O. Burge 2007-4-27 DOB 899 b Napa Vaca Mountains, on east-west trending ridge south of East Mitchel Canyon, 15.2 road miles (24.3 km) west of Hwy 505 270 Comment
  JEPS42084  Ceanothus cuneatus var. cuneatus W. L. Jepson 1910-3-28 4022 Napa sw Rebecca Ranch grade (Calistoga) Comment
  RSA755233  Ceanothus cuneatus var. cuneatus Dylan O. Burge 2007-4-27 DOB 899 c Napa Vaca Mts.: on E-W trending ridge S of East Mitchel Canyon, 15.2 road miles W of Hwy 505 on SR 128 (mile marker 29.77), 24.1 km 87 degrees true ENE of Rutherford. 270 Comment
  CAS-BOT-BC49800  Ceanothus divergens Walter Knight; Cliff Schmidt 1987-2-27 6058 Napa Korturn Canyon Road 274 Comment
  CAS-BOT-BC49804  Ceanothus divergens H. E. McMinn 1926-1-2 1627 Napa Along trail up Mt. St. Helena Comment
  CAS-BOT-BC49807  Ceanothus divergens Milo S. Baker 1939-2-1 9242 Napa Ca. 1 1/2 miles west of Napa-Calistoga Hgwy. at a point ca. 3/4 mi. south of Calistoga Comment
  CAS-BOT-BC64435  Ceanothus divergens Milo S. Baker s.n. Napa Franz Valley, about 5 mi. w. of Callistoga. Comment
  CAS-BOT-BC64439  Ceanothus divergens John Thomas Howell 1926-3-21 1705 Napa Trail to top of Mt. St. Helena. Comment
  CAS-BOT-BC64441  Ceanothus divergens John Thomas Howell 1941-6-21 16320 Napa Hills sw. of St. Helena. Comment
  JEPS33672  Ceanothus divergens John Thomas Howell 1926-3-21 1705 Napa trail to top of Mt. St. Helena Comment
  RSA339394  Ceanothus divergens Walter Knight, S. Edwards 1985-11-17 5186 Napa Kortum Canyon Road; Vineyards Comment
  JEPS42389  Ceanothus foliosus W. L. Jepson 1893-5-1 14019 Napa at divide, Franz Valley grade from Calistoga Comment
  RSA261717  Ceanothus foliosus Katherine Brandegee 1889-04 s.n. Napa Mt St. Helena Comment
  UC1070630  Ceanothus foliosus A. Lewis 1932-5-13 72 Napa Dry Creek Napa quad. 213 Comment
  UCD162121  Ceanothus foliosus Dylan O. Burge 2014-3-15 1499 Napa Mount Saint Helena. 755 Comment
  CAS-BOT-BC50879  Ceanothus foliosus var. foliosus Peter H. Raven 1951-5-26 2891 Napa Howell Mtn. to St. Helena 243 Comment
  SBBG32462  Ceanothus foliosus var. foliosus L. S. Rose 1964-4-2 64018 Napa 2 mi SW of Angwin 243 Comment
  UC1736301  Ceanothus foliosus var. foliosus Dean W. Taylor 1998-6-3 16451 Napa Livermore Road, edge of roadway bordering walnut orchard, ca. 1 air mile S of Three Peaks 640 Comment
  UC726975  Ceanothus foliosus var. foliosus A. A. Heller 1941-5-3 16085 Napa Mt. St. Helena Mt. St. Helena (at places halfway up the mountain) Comment
  UCD112140  Ceanothus foliosus var. foliosus Ray Prag 1971-4-23 s.n. Napa State Highway 121, 1.9 miles south of Wooden Valley Road. 365 Comment
  UCD112146  Ceanothus foliosus var. foliosus J. M. Tucker 1951-3-28 2065 Napa Beside road up south side of Howell Mountain, 5.6 miles north of St. Helena. Comment
  UCD82599  Ceanothus foliosus var. foliosus Ellen Dean; T. Starbuck 2009-5-4 5537 Napa Ridge above Lake Hennesy and Hwy 128 to the E of the Napa Valley. 426 Comment
  SBBG50584  Ceanothus integerrimus C. Laning 1973-4-21 108 -54 Napa 7 mi N of Pope Valley Post Office on Butts Cyn Rd Comment
  UCD148849  Ceanothus integerrimus Ellen Dean; Diana Hickson 2014-4-29 8152 Napa collected along Devilhead Rd in Cupressus woodland on BLM land. Exact location unknown. 487 Comment
  UCD162743  Ceanothus integerrimus Dylan O. Burge; J. Rugyt 2014-5-23 1627 Napa Pope Canyon, S bank of Pope Creek. 644 Comment
Read comments
Dec 8 2016
  CAS-BOT-BC474707  Ceanothus jepsonii Ayzik Solomeshch 2008-4-20 s.n. Napa North side of Pope Canyon Road, ca 2 km W of intersection with Berryessa-Knoxville Road 140 Comment
  CAS-BOT-BC50631  Ceanothus jepsonii H. E. McMinn 1922-8-2 298 Napa Upper Pope Valley along old RR bed Comment
  RSA399003  Ceanothus jepsonii Lester Rowntree 1930-7-15 s.n. Napa Near Napa Comment
  UC796475  Ceanothus jepsonii Ira L. Wiggins 1949-4-30 12095 Napa near Lake County line (hillside along rd from Calistoga to Middletown) Comment
  UCR43101  Ceanothus jepsonii subsp. albiflorus L. F. LaPre 1985-6-8 s.n. Napa Inner N Coast Ranges, 'Rare Plant Canyon,' a tributary of Hunting Creek from the east, 2 mi SW of the site of Knoxville and just east of the Lake Co. line 366 Comment
  RSA0056202  Ceanothus jepsonii var. purpureus Keith E. Hoffmaster 1946-3-23 1226 Napa Napa range, near summit of Napa-Monticello road. Comment
  SEINET11191994  Ceanothus oliganthus var. oliganthus R. R. Halse 2013-3-27 8751 Napa Along State Hwy. 128 ca. 8.7 miles W of Winters, just west of Monticello Dam, south end of Lake Berryessa. 143 Comment
  CAS-BOT-BC51558  Ceanothus oliganthus var. sorediatus John Thomas Howell 1931-4-3 6133 Napa Pope Creek Canyon, 8.5 miles from Monticello 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
  RSA22077  Ceanothus oliganthus var. sorediatus L. S. Rose 1939-4-16 39067 Napa 3 miles NE of Napa. 137 Comment
  UCD112304  Ceanothus oliganthus var. sorediatus Robert C. Bechtel 1952-4-20 70 Napa Samuel Springs, 7 miles northwest of Monticello. 91 Comment
  RSA182686  Ceanothus parryi D. D. Keck 1931-4-2 10112 Napa Foot of Wooden Valley Grade, W base of Napa Range, 4.5 miles NE of Napa. 90 Comment
  UC1071246  Ceanothus parryi A. E. Wieslander 1934-2-24 366 Napa Spring Mountain Calistoga Quadrangle Comment
  UC1197999  Ceanothus parryi Joseph P. Tracy 1899-6-13 385 Napa 3-4 mi e Angwin's (on hills at head of Moore's Creek); Northern Coast Ranges, Howell Mountain 365 Comment
  UC338132  Ceanothus parryi C. C. Parry 1888-1 Napa Calistoga Comment
  UC338134  Ceanothus parryi C. C. Parry May 1888 Napa Calistoga Comment
  UC79858  Ceanothus parryi Katharine Brandegee June 1889 20 Napa Toll House , Toll House (Mt. St. Helena) Comment
  UCR43182  Ceanothus parryi L. F. LaPre 1985-5-2 s.n. Napa Along Livermore Road between Hwy 29 (At Mountain Mill House Girl Scout Camp) and white point, near Lake Co. line and south of Three Peaks 671 Comment
  UCSB16719  Ceanothus parryi Van Rensselaer, Maunsell 1938-4-26 Napa Wooden Valley Grade Comment
  CAS-BOT-BC52179  Ceanothus purpureus Willis L. Jepson 1896-2-22 s.n. Napa New Eden, Howell Mt. Comment
  JEPS110727  Ceanothus purpureus Jake Ruygt 1995-3-29 3412 Napa about 2 mi S of Sage Canyon Road across from boat ramp 457 Comment
  JEPS110730  Ceanothus purpureus Jake Ruygt 1991-4-19 2624 Napa Long Ranch south of Lake Hennessey 365 Comment
  JEPS42097  Ceanothus purpureus Willis L. Jepson 1893-9-21 14028 Napa Napa Range on Wooden Valley grade Napa River Basin Comment
  UC483677  Ceanothus purpureus Milo S. Baker 1931-4-1 5098 Napa In Canyon 5 miles NE of Napa on Monticello Road, north side Comment
  UC870639  Ceanothus purpureus Lewis S. Rose Apr 1939 39069 Napa 4 mi NE of Napa 198 Comment
  UCD73426  Ceanothus purpureus Ayzik Solomeshch; Stephen Rae 2007-5-30 s. n. Napa Brend-Morgan property, ca. 3 miles northeast of city of Napa. 215 Comment
  CDA35683  Ceanothus purpureus N. van Kleeck 1971-3-21 Napa East side of the Napa Valley. 0 Comment
  RSA95277  Ceanothus purpureus J. T. Howell 1931-4-2 6067 Napa Wooden Valley Grade, 5 miles east of Napa Comment
  SEINET12210810  Ceanothus purpureus W. Knight, Knight, I. 1982-1 4658 Napa Tilden Botanic Garden, Berkeley Comment
  JEPS110664  Ceanothus sonomensis Jake Ruygt 1980-5-13 894 Napa Mt. St. John 518 Comment
  SEINET265705  Ceanothus tomentosus Royal D. Suttkus 1967-6-26 67- 30 -12 Napa Clearly Reserves 7.2 miles northwest of Pope Valley. Comment
  JEPS44135  Centaurea calcitrapa W. L. Jepson 1893-1 Napa Oak Knoll Napa Valley, Oak Knoll 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
  SD129755  Centaurea calcitrapa Donald G. Nelson 1940-8-7 699 Napa Highway from Napa to Wooden Valley, north slopes of George Mountain. Alon Sarco Creek (?). 152 Comment
  CDA7329  Centaurea solstitialis T. C. Fuller 1959-5-15 2431 Napa Fanner property, Sanitarium area. 0 Comment
  JEPS106531  Centaurium muehlenbergii Jake Ruygt 1996-10-19 3795 Napa Vine Village, corner of Congress Valley Rd and Oln Sonoma Rd 45 Comment
  JEPS106533  Centaurium muehlenbergii Jake Ruygt 1992-7-14 3092 Napa Yountville Ecological Reserve,Yountville Cross Rd., Napa River 27 Comment
  JEPS106528  Centaurium trichanthum Jake Ruygt 1980-6-1 907 Napa Milton Rd. 0 Comment
  UC1537512  Centaurium trichanthum Gordon H. True Jr. 1937-7-30 827 Napa near Aetna Springs 365 Comment
  JEPS46940  Centaurium trichanthum W. L. Jepson 1930-10-19 15699 Napa Butts Canyon, ne Napa Co Butts Canyon Comment
  JEPS46941  Centaurium trichanthum W. L. Jepson 1897-7-12 14638 Napa Samuels Springs to Aetna Springs Comment
  JEPS46952  Centaurium trichanthum W. L. Jepson 1894-7-19 14635 Napa above Calistoga Comment
  UC1746024  Centaurium venustum Annetta M. Carter, Joseph Tracy, Rimo Bacigalupi 1950-5-23 2771 Napa Howell Mtn. La Jota Plateau - Las Posadas State Forest. 533 Comment
  JEPS106656  Centromadia fitchii Jake Ruygt 1986-9-6 1914 Napa Trancas St. at Villa Lane 12 Comment
  UCD164738  Centromadia fitchii Jake Ruygt 2014-7-7 6024 Napa Snell Valley, Missimer Wildflower Preserve. 178 Comment
  UC990564  Centromadia fitchii James I. McMurphy 1909-8-7 698 Napa between Mount St. Helena and Calistoga Comment
  SD9168  Centromadia parryi Katherine Curran 1883-1 Napa Calistoga Comment
  JEPS106655  Centromadia parryi subsp. parryi Jake Ruygt 1992-9-5 3139 Napa Tubbs Lane at Myrtledale Rd., Calistoga 122 Comment
  UC990568  Centromadia parryi subsp. parryi James I. McMurphy 1909-8-7 697 Napa Calistoga Warm Springs Comment
Read comments
Aug 31 2011
  CAS-BOT-BC222944  Cephalanthus occidentalis John Thomas Howell 1929-8-4 4367 Napa One mile bleow Samuels Springs, Pope Creek Canon [Canyon], Napa Range Comment
  CDA10896  Cerastium glomeratum G. F. Hrusa, M. Rejmanek 1993-5-15 10991 Napa University of California, Quail Ridge Reserve betw. Hwy 128 and Lake Berryessa. Comment
  UCD118140  Cerastium glomeratum Linnea Neuhaus; Plant Biology 102 Collectors 2012-4-29 4 Napa Las Posadas State Experimental Forest. Just northeast of fire station, along undeveloped road, south side of road. 519 Comment
  UCD48853  Cerastium glomeratum C. Matthews; K. Glover, C. Little, and T. Petrie 2001-4-14 16 Napa Quail Ridge Reserve; SE corner of Lake Berryessa, just W of Monticello Dam. Between West Rd. and Decker Bay Trail; approx. 200' NW of jct of West Rd. and Decker Bay Trail; approx. 300' N of creek. 167 Comment
  HSC4108  Cerastium glomeratum W. L. Jepson 1921-5-6 9178 Napa Calistoga 109 Comment
  JEPS107195  Cercis occidentalis Jake Ruygt 1997-3-18 3809 Napa Conn Valley Road, 2 miles east from Silverado Trail 146 Comment
  JEPS107196  Cercis occidentalis Jake Ruygt 1994-3-26 3335 Napa .4 mile south of Wooden Valley Croos Rd on Suisun Valley Road 82 Comment
  RSA195520  Cercis occidentalis John H. Thomas 1955-5-21 5156 A Napa Along State Highway No. 128, about 4.5 miles south of Monticello. 168 Comment
  RSA3293  Cercis occidentalis D. D. Keck 1931-4-3 1062 Napa Pope Creek Canyon, 8 miles NW of Monticello Comment
  UCD105663  Cercis occidentalis M. R. Wanzer 1948-4-3 5 Napa Putah Creek Canyon, 13 miles west of Winters. Comment
  UC1784135  Cercocarpus betuloides Ethel Crum 1930-1 814 Napa St. Helena Comment
  UC12149  Cercocarpus betuloides var. betuloides W. L. Jepson 1896-2-22 Napa near Eden (e of Angwin, Howell Mountain); Howell Mountain 914 Comment
  UC1328140  Cercocarpus betuloides var. betuloides Donald V. Hemphill 1940-3-22 47 Napa 2 mi w of Angwin (Bell's Canyon); Bell's Canyon 426 Comment
  UC859440  Cercocarpus betuloides var. betuloides Alice Eastwood 1922-5-4 11280 Napa Mount St. Helena Comment
  UC903165  Cercocarpus betuloides var. betuloides Ethel Crum 1937-4-19 1776 Napa 6 mi n of Napa (Mount George); Napa Range, Mount George 304 Comment
  CAS-BOT-BC284572  Chaenactis glabriuscula var. heterocarpha Peter H. Raven 1951-5-6 2823 Napa Burn below Conn Dam 274 Comment
  JEPS106931  Chaenactis glabriuscula var. heterocarpha Jake Ruygt 1980-4-22 856 Napa .7 miles northwest of Knoxville Rd. on Berryessa-Knoxville R 457 Comment
  JEPS81963  Chaenactis glabriuscula var. heterocarpha Rimo Bacigalupi, and L. R. Heckard 1965-5-15 9093 Napa 1/2 mi se Devilhead Road (from Knoxville to Cedar Valley) (headwaters of creek); Zim Zim Creek 487 Comment
  SEINET10844555  Chamaesyce serpillifolia subsp. serpillifolia Lowell Ahart 2009-10-12 Ahart 16437 -A Napa T8N, R3E, east border of southwest 1/4 Section 30. Normal size plant, on dry bare soil, 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
  UC869111  Chamaesyce serpyllifolia Milo S. Baker 1938-8-22 9224 Napa Lower Lake-Knoxville Road just S of Lake-Napa Co. line Comment
  UC1427385  Cheilanthes covillei Alan R. Smith with J. Eckenwalder 1974-5-1 656 Napa junction of Lower Chiles Valley Rd and State Hwy 128 Comment
  SBBG128613  Chenopodium album L. Ahart 2009-10-27 16483 Napa below the high water line of Lake Berryessa, ca. 100 yards E of Eticuera Crk, ca. 50 yards S of Eticuera Parking Area at the NE end of the causeway, on the S side of Berryessa Knoxville Rd, ca. 20 mi NW of Winters 130 Comment
  UCD68010  Chlorogalum pomeridianum P. J. Plummer 1995-6-5 s.n. Napa Napa County Highway 128. 73 Comment
  UCD167624  Chlorogalum pomeridianum var. pomeridianum Jake Ruygt 1978-6-28 370 Napa Partrick Road, 2 miles north of Browns Valley Road. 164 Comment
  CAS-BOT-BC238000  Chloropyron molle subsp. molle Gordon True; Catherine Best 1981-9-12 s.n. Napa At Logan Island Comment
  UCR261728  Chorizanthe membranacea Ann Howald 2003-5-23 2339 Napa Inner North Coast Ranges, Snell Valley Road, c. 2.3 miles east of intersection with Butts Canyon Rd. 190 Comment
  POM262795  Chorizanthe membranacea J. C. Roos 1939-5-6 294 Napa Near Three Peaks, Napa Range 915 Comment
  CAS-BOT-BC252839  Chorizanthe polygonoides var. polygonoides Alice Eastwood 1915-6-5 4603 Napa Petrified Forest Comment
Read comments
Apr 17 2018
  CAS-BOT-BC252841  Chorizanthe polygonoides var. polygonoides M. S. Jussel 1937-5-23 s.n. Napa Palisades Comment
  SEINET11933915  Chorizanthe polygonoides var. polygonoides F. H. Utech, Knight, W.; Knight, I.; Edwards, S. 1986-1 86 -297 Napa Robert Lewis Stevenson State Park trail to the Pallisades, trailhead on CA 29 near St. Helena Creek 750 Comment
  CAS-BOT-BC36499  Chrysolepis chrysophylla Alice Eastwood 1915-6-6 4699 Napa Mt. St. Helena Comment
  JEPS35975  Cichorium intybus W. L. Jepson 1944-7-30 27544 Napa 3 mi s Yountville; Napa Valley Comment
  UC521765  Cichorium intybus Joseph Andorfer Ewan 1933-9-17 7998 Napa Napa Napa Valley Comment
  JEPS120410  Cichorium intybus Jake Ruygt 2010-6-19 5612 Napa 200 yds west of Hunting Creek along Putah Creek. Comment
  CDA1210  Cirsium douglasii var. douglasii Gene Cornett 1952-1-2 s.n. Napa S.E. corner of Napa Co.( 300 yds N of American Canyon Rd., 2.7 mi. E of Hwy 29, about 0.3 mi W of I-80)(map with sheet #3 of 4) Comment
  CAS-BOT-BC279969  Cirsium douglasii var. douglasii Gene Cornett 1952-6-2 s.n. Napa Napa Comment
  OBI76874  Cirsium douglasii var. douglasii Neal Kramer 2012-7-18 2065 Napa Approx 1.3 mi W of jctn I-80 and American Cyn Rd NAD83 UTM 10S 0567936E 4224770N 72 Comment
  CDA1305  Cirsium occidentale var. californicum G. D. Barbe, M. Foskett, D. Massey 1977-5-5 2254 -B Napa 2.7 km. west of Oakville; Oakville Grade, roadside cut west of summit. Comment
  UCD19925  Cirsium vulgare E. A. Dean; J Bradford, K. Mawdsley, and L Wynholds 2001-7-13 780 Napa Quail Ridge Reserve. Decker Canyon, along Decker Bay trail. 140 Comment
  CAS-BOT-BC169772  Cistanthe quadripetala Alice Eastwood 1915-6-6 4673 Napa Mt. St. Helena Comment
  RSA594918  Clarkia John H. Thomas 1955-5-21 5112 Napa Sarco Creek drainage, near State Hwy No. 37 about 6 miles from Napa. 244 Comment
  RSA120889  Clarkia amoena subsp. amoena G. D. Barbe 1957-7-4 372 Napa 0.1 mi. NW of Christian Bros. Mt. LaSalle School on Redwood Road 6.1 miles west of Hwy 29 and Napa 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
  RSA292923  Clarkia amoena subsp. huntiana Reino Alava 1957-5-30 981 Napa Along State Highway No. 128 at the Napa - Solano county line Comment
  CAS-BOT-BC172178  Clarkia concinna R. Bacigalupi; R. S. Ferris; Ira L. Wiggins 1933-6-2 6674 Napa Butt's Canyon, 10 mi. N. of Howell Mt. Comment
  LA45414  Clarkia concinna J. A. Ewan; 1934-4-30 8858 Napa 4 mi. above Samuel Springs, Pope Valley Grade Comment
  CAS-BOT-BC172179  Clarkia concinna Peter H. Raven 1950-6-20 2365 Napa Above Conn Valley Comment
  CAS-BOT-BC172180  Clarkia concinna J. H. Thomas; H. A. Thomas 1954-6-16 541 Napa Mt. Veeder Rd., about 8 miles NW of Napa, along the north fork of the Napa River Comment
  CDA38053  Clarkia concinna W. C. Jacobsen Jun 1920 57 Napa Calistoga. 0 Comment
  UCD21810  Clarkia concinna L. D. Gottlieb 1987-8-1 8740 Napa Hwy. 128, immediately west of Conn Dam. Comment
  UCD104448  Clarkia concinna subsp. concinna L. P. Thibault 1995-5-19 39 Napa Along Highway 128, ca. 1/2 mile W of intersection with Lower Chiles Valley Road and W of Sage Creek. 250 Comment
  UCD164690  Clarkia concinna subsp. concinna L. P. Thibault 1995-6-2 58 Napa South side of Highway 128 approximately 2 miles east of Lower Chiles Valley Road. 300 Comment
  CAS-BOT-BC164533  Clarkia gracilis subsp. albicaulis Peter H. Raven 1962-5-31 17920 Napa In Lower Lake--Knoxville road, 1.9 miles south of Lake County line Comment
  RSA41114  Clarkia gracilis subsp. gracilis Robert F. Hoover 1938-6-8 3538 Napa South fork of Butts Creek. Comment
  JEPS110764  Clarkia gracilis subsp. tracyi Jake Ruygt 1980-6-22 939 Napa .1 mile north of Snell Valley Rd. on Butts Canyon Rd. 204 Comment
  UC1586100  Clarkia gracilis subsp. tracyi Barbara Ertter with Annetta Carter 1989-5-28 8517 Napa near Knoxville (2 mi se of Lake County line on Berryessa Road, extreme n Napa County) 609 Comment
  CAS-BOT-BC163694  Clarkia purpurea subsp. quadrivulnera Peter H. Raven 2819 Napa 4 mi. to Conn Dam from Rutherford 91 Comment
  UCD32412  Clarkia purpurea subsp. quadrivulnera Beecher Crampton 1950-5-7 566 Napa E side of Napa Valley and SE of St. Helena, roadside of Silverado Trail. 54 Comment
  JEPS110693  Clarkia rhomboidea Jake Ruygt 1978-5-21 335 Napa .3 mile north of White Cottage Rd. on Summit Rd. 536 Comment
  CAS-BOT-BC165607  Clarkia unguiculata James L. Reveal 1987-6-7 6392 Napa Vaca Mountains, along the Gates Canyon Road, 2 miles west of Pleasant Valley Road, about 5.5 miles west-northwest of Vacaville 182 Comment
  JEPS110691  Clarkia unguiculata Jake Ruygt 1989-5-7 2302 Napa about 1/2 mile south of Monticello Dam on Vaca Mtns. 402 Comment
  UCD169614  Clarkia unguiculata 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
  UCD15612  Clarkia unguiculata Lisa Montany 1985-6-1 30 Napa Highway 128, 3 miles west of Monticello Dam. 213 Comment
  CDA12025  Claytonia exigua G. F. Hrusa 1990-3-19 7501 Napa North Coast Biodiversity Arena; Chiles Valley-Pope Valley Rd. Comment
  UCD100584  Claytonia exigua Robin Brooks 1975-4-26 42 Napa 2 miles south of Pope Valley (12 miles north of Highway 128). Comment
  UCD21538  Claytonia exigua B. Pekin; Ellen Dean, Mark Bibbo, Alex Lee 2003-4-26 1 Napa California, Napa County, on Bureau of Land Management land S of McLaughlin Reserve. West of Devil Head Road, S side of Hunting Creek, S of Hunting Creek campground, just W of pool at confluence of Sensitive Plant Canyon and Hunting Creek. 320 Comment
  HSC17756  Claytonia exigua subsp. exigua C. B. Wolf 1928-2-25 1495 Napa Mt. St. Helena Grade, 5 mi. N of Calistoga Comment
  UCD100700  Claytonia parviflora subsp. parviflora G. L. Webster 1967-3-23 7497 Napa c. 1 mi S of Spanish Flat. 167 Comment
  CAS-BOT-BC439942  Claytonia perfoliata subsp. mexicana Ira L. Wiggins 1928-3-27 2870 Napa 1 1/2 miles northeast of Calistoga Comment
  JEPS43304  Claytonia perfoliata subsp. perfoliata W. L. Jepson 1893-3-13 Napa St. Helena Comment
  CAS-BOT-BC440043  Claytonia perfoliata subsp. perfoliata Elsa G. Ruckert 1960-2-7 10 Napa 6495 Dry Creek Road. Field, 300 yards east of house 365 Comment
  UCD32567  Clematis lasiantha Beecher Crampton 1954-5-18 1918 Napa 10 minutes southwest of Monticello, along highway 128. Comment
  UCD49116  Clematis lasiantha E. Gottschalk; C. Brassey and L. Hamamoto 2001-4-28 2 Napa Quail Ridge Reserve, SE corner of Lake Berryessa, just W of Monticello Dam. Along West Rd., 400 as the crow flies feet NNW of the jct of West Rd. and South Decker Canyon Rd. 167 Comment
  JEPS110884  Clematis ligusticifolia Jake Ruygt 1998-8-29 4111 Napa Berryessa-Knoxville Road at crossing of Eticuera Creek. 216 Comment
  UCD73054  Clinopodium douglasii Ellen Dean; S. Rae 2008-5-21 4973 Napa Hills to the west of Hwy. 29. Private property accessed by Diamond Mountain Road. Canyon runnning east to west. 213 Comment
  UC766312  Collinsia greenei R. F. Hoover 1941-4-26 4918 Napa between Samuel Springs and Walter Springs (Pope Cr) Comment
  UC483682  Collinsia greenei Milo S. Baker 1932-4-26 5965 Napa between Monticello and Pope Val (on Monticello rd to Pope Val, nearer to Pope Val than to Monticello) Comment
  UC1196847  Collinsia heterophylla Joseph P. Tracy 1902-5-21 12484 Napa 3-4 mi e of Angwins (Howell Mountain, on hills at head of Moore's Creek); Northern Coast Ranges, Howell Mountain, Moore's Creek 396 Comment
  UC1196848  Collinsia heterophylla J. P. Tracy 1902-5-21 1572 Napa 3-4 mi e of Angwins (Howell Mountain, Head of Moore's Creek); Howell Mountain, Head of Moore's Creek 457 Comment
  UC192735  Collinsia heterophylla C. F. Sonne Apr 1897 Napa near Napa City Comment
  UCD123662  Collinsia sparsiflora G. L. Webster 1967-3-23 7495 Napa ca. 1 mi S of Spanish Flat. 167 Comment
  UCD20025  Collinsia sparsiflora C. H. Lamoureux; J. M. Tucker and R. Gankin 1957-4-17 1213 Napa 1 mile west of junction of Route 128 and Pope Valley Road, on south side of Lake Hennessy. Comment
  SEINET10548307  Collinsia sparsiflora John T. Middleton 1936-3-27 Middleton 211 A Napa Near monticello. Comment
  JEPS6350  Collinsia sparsiflora var. arvensis H. M. Wheeler 1944-3-27 Napa ca 1.8 mi n of s end of Conn Valley (Conn Ranch) Comment
  JEPS25072  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1933-4-30 12099 Napa 3-4 mi e Angwin's (head of Moore's Creek, on hills); North Coast Ranges, Howell Mtn, Moore's Creek 396 Comment
  UCD18045  Collinsia sparsiflora var. sparsiflora Ellen Dean; with Susan Harrison, Dean Enderlend, Joe Callizo 2000-3-18 596 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
  SBBG6883  Collinsia sparsiflora var. sparsiflora H. and M. Dearing 1939-5-1 3246 Napa top of Spring Mtn grade Comment
  JEPS7296  Collinsia tinctoria Alice King Jul 1919 Napa Van Ness Ranch , Mt. St. Helena (Mt. St. Helena) Comment
  JEPS112561  Collomia diversifolia Jake Ruygt 1998-4-22 3932 b Napa Turner Mtn. about .6 mile from intersection Cement Cr Rd/Myster.V 475 Comment
  UCD118178  Collomia heterophylla K. Esau 1935-5-5 s.n. Napa Near Petrified Forest, Calistoga. Comment
  UCD127310  Conium maculatum Mannix Mendoza Date unknown 15 Napa Roadside Hwy. 128, around 1/4 mile south of Lake Berryessa. Comment
  UCR45098  Cordylanthus pilosus L. F. LaPre 1986-7-13 s.n. Napa Inner North Coast Ranges, Hunting Creek, 0.5 mi south of Dunnigan Hill. SE of Clear Lake, near the county line. 335 Comment
  JEPS55931  Cordylanthus pilosus subsp. pilosus T. I. Chuang and Fei-Mei Chuang 1968-7-24 6477 Napa 1 mi nw of St. Helena Comment
  JEPS6778  Cordylanthus pilosus subsp. pilosus Willis L. Jepson 1893-9-23 21338 Napa near Calistoga; Upper Napa Valley, Napa River Basin Comment
  RSA516551  Cordylanthus pilosus subsp. pilosus R. C. Bacigalupi, G. Thomas Robbins, C. L. Custer 1954-8-9 4750 Napa Grade over shoulder of Mt. St. Helena, road from Calistoga to Middletown, near Hanley's Resort. 511 Comment
  RSA97495  Cordylanthus pilosus subsp. pilosus L. S. Rose 1954-9-13 54115 Napa 1 mi. w. of Calistoga. 122 Comment
  SD131925  Cordylanthus pilosus subsp. pilosus Rimo Bacigalupi, C. L. Custer, G. T. Robbins 1954-8-9 4750 Napa grade over shoulder of Mt. St. Helena, road from Calistoga to Middletown, near Hanley's Resort Comment
  JEPS7009  Cordylanthus pringlei W. L. Jepson 1930-10-19 15701 Napa Butts Canyon Comment
  UCR78362  Cordylanthus pringlei T. I. Chuang, F. M. Chuang 1970-8-25 6842 Napa North Coast Range, Just south of Lake County line, on U.S. Hwy 29 463 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
  OBI9574  Cordylanthus pringlei Robert F. Hoover 1966-8-23 9922 Napa E side of Mt. St. Helena, about 1/2 mi S of lake co. line Comment
  JEPS50118  Cornus glabrata W. L. Jepson 1923-10-10 10235 a Napa Wooden Valley Comment
  SEINET9330248  Cornus glabrata Unknown 1954-5-20 1920 Napa 3 mi E of Rutherford, along hwy 128, Sage Canyon, Conn Creek. Growing under valley oak. Comment
  CAS-BOT-BC209416  Cornus nuttallii John Thomas Howell 1926-10-3 2208 Napa St. Helena Creek one mile below Patten's 609 Comment
  RSA397476  Cornus nuttallii Anonymous 1917-6-21 597 Napa Redwood Comment
  UC21525  Cornus nuttallii Willis L. Jepson 1893-1 Napa Toll-house Mt. St. Helena; Napa R. Basin, Mt. St. Helena Comment
  UC796621  Cornus nuttallii Ira L. Wiggins 1949-4-30 12090 Napa along draw on n.e. flank of Mt. St. Helena 914 Comment
  CAS-BOT-BC180342  Corylus cornuta subsp. californica Alice Eastwood 1923-5-9 11742 Napa Calistoga Comment
  CAS-BOT-BC180345  Corylus cornuta subsp. californica D. E. Breedlove 1980-6-27 44785 Napa 2.2 miles W of Calistoga at Highway 128 on road to Santa Rosa Comment
  JEPS129154  Cotula coronopifolia Jake Ruygt 1978-3-31 256 Napa 2.5 miles west of Highway 29 on Green Island Road. Cuttings Wharf 7.5' Quad. Comment
  UCD130915  Cotula coronopifolia J. M. Tucker 1959-4-18 3506 Napa beside (south side of) Silverado Trail, ca. 3 miles east of Calistoga. Comment
  UCD19947  Crassula connata E. A. Dean; Virginia Boucher 2002-2-28 903 Napa Quail Ridge Reserve. Along upper trail, leading out north of stock pond near Quail Ridge tip; 0.2 airline miles NE of junction with West Rd. 320 Comment
  UC1300834  Crassula connata var. subsimplex Helen K. Sharsmith 1963-3-17 5217 Napa s. side Mt. Atlas; San Francisco Bay Region 609 Comment
  UCD116514  Crocanthemum scoparium Beecher Crampton 1956-5-25 3480 Napa Howell Mountains, above southwest corner of Wooden Valley. Comment
  UCD144651  Crocanthemum scoparium Alice Warrick 2007-4 s.n. Napa Quail Ridge UC Reserve. 2005 Pleasure Fire burn site, along west loop road, north of Decker canyon. 243 Comment
  UCD36950  Crocanthemum scoparium Beecher Crampton 1956-5-25 3480 Napa Howell Mountains, above southwest corner of Wooden Valley. Comment
  OBI49310  Crocanthemum scoparium Joseph Andorfer Ewan 1934-4-30 8825 Napa Sarco crk, 4 mi above Napa Comment
  JEPS31093  Crocanthemum scoparium var. vulgare W. L. Jepson 1938-5-20 18804 Napa slope above St. Helena Sanitarium (open slope above vineyard); Howell Mountain Comment
  CAS-BOT-BC190055  Crypsis schoenoides Peter H. Raven 1951-10-28 3936 Napa Strand at west end of Conn Lake. 152 Comment
  CHSC102273  Crypsis schoenoides Lowell Ahart 2009-10-12 16462 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
  UCD59945  Crypsis schoenoides Beecher Crampton 1962-9-11 6673 Napa Wragg Canyon Resort, Lake Berryessa. Comment
  UCR146405  Crypsis schoenoides Beecher Crampton 1954-10-26 2300 Napa Inner North Coast Ranges, 4 miles east of Rutherford, Conn Reservoir 122 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
  SEINET4206989  Cryptantha clevelandii Barbara Ertter, Annetta Carter 1989-5-28 8510 Napa Near Knoxville 2 mi SE of Lake Co. line on Berryessa Rd.; 0 610 Comment
  CDA10861  Cryptantha flaccida G. F. Hrusa, M. Rejmanek 1993-5-15 10956 Napa University of California, Quail Ridge Reserve betw. Hwy 128 and Lake Berryessa. Comment
  JEPS106755  Cryptantha flaccida Jake Ruygt 1998-5-2 3947 Napa Chiles Canyon near white stone bridge. 146 Comment
  UC55909  Cryptantha flaccida J. P. Tracy 1899-6-17 439 Napa 3-4 mi e Angwin's; Howell Mountain, Head of Moores Creek 365 Comment
  UCD148934  Cryptantha flaccida Ellen Dean; Diana Hickson 2014-4-29 8146 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 511 Comment
  UCD47942  Cryptantha flaccida M. K. Voigt; E. Sweeney and M. Miller 2002-4-13 4 Napa McLaughlin UC Reserve. SW of old town of Knoxville 150 m N of Knoxville-Berryessa Rd. 426 Comment
  UC857112  Cryptantha flaccida Joseph Andorfer Ewan 1934-4-30 8842 Napa 5 mi s Monticello (on Steel Canyon road) Comment
  UC912356  Cryptantha flaccida Herbert L. Mason 1934-4-30 8105 Napa 5 mi s Monticello (tributary of Putah Creek); Putah Creek Comment
  UCD119788  Cryptantha flaccida K. Esau 1934-5-8 s.n. Napa Putah Canyon. Comment
  JEPS106702  Cryptantha hispidula Jake Ruygt 1993-5-1 3239 Napa end of Cedar Creek Rd, to southwest 420 Comment
  JEPS41085  Cryptantha hispidula Rimo Bacigalupi, and L. R. Heckard 1965-5-15 9092 Napa 0.5 mi se Devilhead Road (from Knoxville to Cedar Valley, headwaters of Zim Zim Creek); Zim Zim Creek 487 Comment
  UC998323  Cryptantha hispidula Milo S. Baker 1938-4-29 8939 Napa e of Pope Valley (along road from Monticello) Comment
  UCD160721  Cryptantha hispidula Ellen Dean 2015-5-23 8773 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. 211 Comment
  UCD170153  Cryptantha hispidula Daniel Potter; Ninh Khuu, Maggie Larochelle 2015-4-11 786 Napa Knoxville Wildlife Area, near top of ridge above and west of Berryessa-Knoxville Road 558 Comment
  UCD70466  Cryptantha hispidula B. Wengeler 1995-4-30 s.n. Napa West of city of Winters, 2 m N of hwy 128 along Knoxville Rd. Open hillside of rocky, serpentine soil. Annual, 9 in tall. Flowers white. 183 Comment
  JEPS106882  Cryptantha muricata Jake Ruygt 1983-6-12 1492 Napa Mt.St.Helena 685 Comment
  UCD47944  Cryptantha muricata M. Carson; A. Haselby, S. Howard, P. Meyers 2000-4-29 4 Napa Napa County, McLaughlin Reserve, near Yolo County line, high on hill. 670 Comment
  UCD167152  Cryptantha muricata var. jonesii Jake Ruygt 2015-5-11 6096 Napa Fernandes - Snell Peak. 393 Comment
  SEINET10569440  Cupressus Fisher 1881-1 Fisher s.n. Napa Calistoga Comment
  JEPS39791  Cupressus macnabiana W. L. Jepson 1897-7-12 21291 Napa near Samuel's Springs; Pope Creek Comment
  JEPS88724  Cupressus macnabiana W. L. Jepson Jul 1897 Napa Samuel Springs to Middleton Comment
  UCD133528  Cupressus macnabiana D. Mattson 1969-10-18 9 Napa Knoxville Public Lands. Comment
  RSA92799  Cupressus macnabiana P. H. Raven 1951-10-28 3958 Napa Knoxville. 457 Comment
  RSA96667  Cupressus macnabiana Percy C. Everett, E. K. Balls 1954-10-19 20371 Napa 3.9 miles NW of Knoxville on road to Lower Lake. 610 Comment
  JEPS103999  Cupressus sargentii Jake Ruygt 1979-2-25 436 Napa Oat Hill Mine Rd. near Aetna Springs 411 Comment
  JEPS39750  Cupressus sargentii unknown 1892-1-1 Napa Howell Mt. Comment
  JEPS56136  Cupressus sargentii Donald V. Hemphill 1968-7-13 Napa sw of Lake Berreyessa (Cedar Roughs); Cedar Roughs 609 Comment
  NY16828  Cupressus sargentii C. B. Wolf 1934-10-17 6196 Napa This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  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
  SEINET11739562  Cupressus sargentii F. H. Utech, Knight, W.; Knight, I.; Edwards, S. 1986-1 86 -322 Napa along Butts Canyon Road near junction with Snell Valley Road along Butts Creek 250 Comment
  CAS-BOT-BC224538  Cuscuta californica John Thomas Howell 1930-7-13 5370 Napa Near Myrtledale Hotsprings [Hot Springs], upper Napa Valley Comment
  CAS-BOT-BC224539  Cuscuta californica Peter H. Raven 1952-6-28 4205 Napa Conn Valley 152 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
  JEPS116522  Cuscuta subinclusa Jake Ruygt 1982-7-21 1379 Napa Edgerly Island. Cuttings Wharf 7.5' Quad. Comment
  JEPS47144  Cuscuta subinclusa W. L. Jepson Oct 12 1894-Oct 13 1894 70 a Napa St. Helena Napa Valley Comment
  RSA611429  Cynoglossum grande Joseph A. Ewan 1934-3-18 8661 Napa Steel Canyon. Comment
  SEINET5731319 Image available Cynoglossum grande R. F. Denno 1967-1 49 Napa Lower Chiles Valley Road, 1 mile NW of State Hwy 128. 229 Comment
  CAS-BOT-BC190369  Cynosurus cristatus John Thomas Howell 1943-6-20 18239 Napa Hills southwest of St. Helena. Comment
  CAS-BOT-BC190361  Cynosurus echinatus Peter H. Raven 1950-6-20 2352 Napa On the west side of Howell Mountain. Comment
  UCD37686  Cynosurus echinatus Beecher Crampton 1961-6-12 5903 Napa Napa County, 7 miles northeast of city of Napa, Howell Mountains, summit along State highway 37. Comment
  UC1563948  Cyperus eragrostis Barbara Ertter with Elizabeth Neese 1988-10-2 7956 Napa ca. 15 airmiles n.-n.w. Napa (Lake Hennessey, on Conn Creek, below spillway on n. side of Rte. 128); North Coast Ranges, Conn Creek 91 Comment
  RSA365070  Cyperus eragrostis Anonymous 1924-07 s.n. Napa Near St. Helena Comment
  UC579872  Cyperus eragrostis Annetta Carter 1935-12-1 1018 Napa w. side Wooden Valley Grade Comment
  CDA2601  Cyperus rotundus B. E. Eaton 1965-9-3 Napa 1272 Hayes Street, Napa,. 0 Comment
  CAS-BOT-BC190452  Dactylis glomerata Peter H. Raven 1952-5-29 4096 Napa 1 mile north Napa. 45 Comment
  CAS-BOT-BC189861  Danthonia californica Peter H. Raven 1952-5-26 4038 Napa Saint Helena to Howell Mountain. 304 Comment
  JEPS122991  Danthonia californica Jake Ruygt 1988-5-28 2188 Napa Lovall Valley Road near county line. Quad: Sonoma. Comment
  UCD60520  Danthonia californica Beecher Crampton 1962-5-16 6437 Napa Pope Valley (the town). Comment
  UCD63155  Deinandra corymbosa subsp. corymbosa Jake Ruygt 2007-5-25 5209 Napa between Buchli Station Rd. and Milton Rd. 1 Comment
  CAS-BOT-BC10199  Delphinium hesperium P. H. Raven 1951-6-10 2931 Napa Crater Region E of Palisades 762 Comment
  HSC43970  Delphinium hesperium Robert M. Specht 1977-5-14 896 Napa S side of Morgan Valley Rd. near junction with Develhead Rd. 457 Comment
  POM161348  Delphinium hesperium Rimo Bacigalupi 1928-6-20 1856 Napa Howell Mt, 10 miles W of St Helena Comment
  CAS-BOT-BC10195  Delphinium hesperium Belle R. Jackson 1930-6-8 s.n. Napa Old Toll Road near Toll House, N side of Mt. St. Helena 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
  LA38212  Delphinium hesperium G. Mehlquist; 357 Napa 7 mi. S of Monticello on road to Napa Comment
  LA38213  Delphinium hesperium G. Mehlquist; 358 Napa 8.4 mi. S.of Monticello on road to Napa 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
  CAS-BOT-BC9812  Delphinium nudicaule John Thomas Howell 1931-4-2 6080 Napa Summit of Wooden Valley Grade, 8 miles east of Napa Comment
  CHSC40063  Delphinium nudicaule L. Constance 1938-3-27 2041 Napa Above Wooden Valley 8 mi. NE. of Napa, E. slope of Howell Mountains, North Coast Ranges. 457 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
  CAS-BOT-BC9811  Delphinium nudicaule Belle R. Jackson 1930-6-8 s.n. Napa On Old Toll Road below Patten's Mt. St. Helena region Comment
  POM220822  Delphinium nudicaule Belle Richardson 1930-6-8 s.n. Napa On the old toll road below Pattens, Mt St. Helena Comment
  UC635346  Delphinium patens H. L. Mason 1928-4-13 4330 Napa hills between Santa Rosa and Calistoga Comment
  CAS-BOT-BC116485  Delphinium patens subsp. patens E. Ruckert 1960-4-17 57 -408 Napa Meadow 100 feet southwest of private road leading in from 6495 Dry Creek Road 365 Comment
  JEPS60631  Delphinium uliginosum Joseph P. Tracy 1933-6-2 12488 Napa 3-4 mi e Angwin's (on hills at head of Moore's Creek); Northern Coast Ranges, Howell Mountain 365 Comment
  SFV1290  Delphinium uliginosum A. Day 1965-5-15 65 126 Napa Cedar Valley, west of Lake Berryessa. 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
  SEINET12093076  Delphinium uliginosum F. H. Utech, Knight, W.; Knight, I.; Edwards, S. 1986-1 86 -326 Napa along Butts Canyon Road near junction with Snell Valley Road along Butts Creek 250 Comment
  SEINET3824804 Image available Delphinium uliginosum Unknown 1982-6-1 s.n. Napa 9.9 miles south of Middletown Lake or Napa county Comment
  SEINET7041066  Delphinium uliginosum Christopher T. Ivey 2002-5-17 357 Napa West side of Chiles-Pope Valley Road, 4.2 miles south of Pope Canyon Road. Comment
  CAS-BOT-BC17175  Delphinium variegatum Hilda Smyth 1899-1-1 s.n. Napa near Napa Comment
  CAS-BOT-BC7913  Delphinium variegatum Alice Eastwood 1930-4-13 s.n. Napa Canyon between Monticello and Pope Valley Comment
  UC906477  Delphinium variegatum J. Ewan 1934-4-30 8855 Napa grassy slope Pope Valley (e end of valley) Comment
  UCD147535  Delphinium variegatum Ellen Dean; Diana Hickson 2014-4-29 8089 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 603 Comment
  LA207640  Delphinium variegatum H. Lewis; G. Mehlquist 1941-5-9 sn Napa 16.2 mi. N of Monticello Comment
  JEPS23363  Delphinium variegatum subsp. apiculatum W. L. Jepson 1893-4-26 Napa hills near Yountville; Napa Valley Comment
  RSA0110255  Delphinium variegatum subsp. variegatum E. K. Balls 1952-5-8 17117 Napa 4 miles N along Hwy 29 from jct of Hwy 28 and 29 at Woodleaf. Comment
  CHSC25103  Dendromecon rigida J. E. Beitler 1970-4-19 24 Napa Napa. Located on N. side of road ca. 20 feet in from road shoulder, ca. 11.7 mi. W. on Napa-Monticello road from Moskowite Corners. Comment
  UC142990  Dendromecon rigida Mrs. K. Brandegee May, 1910 94 Napa on slopes back of Toll House; North Coast Ranges, Mt. St. Helena Comment
  UCD167245  Dendromecon rigida Jake Ruygt 1991-4-17 2625 Napa Long Ranch, on ridge south of Lake Hennessey. 365 Comment
  POM242806  Dendromecon rigida subsp. rigida Lyman Benson 1929-9-30 1930 Napa Mt. St. Helena 610 Comment
  CDA11314  Deschampsia cespitosa G. F. Hrusa 1988-4-16 5536 Napa North Coast Biodiversity Arena; Butts Canon, ~6 m. N Aetna Springs. Comment
  UCR43202  Deschampsia cespitosa subsp. cespitosa L. F. LaPre 1985-6-8 s.n. Napa Inner N Coast Ranges, 'Rare Plant Canyon,' a tributary of Hunting Creek from the east, 2 mi SW of the site of Knoxville and just east of the Lake Co. line 366 Comment
  JEPS122989  Deschampsia danthonioides Jake Ruygt 1982-4-29 1213 Napa Suscol plain between Kaiser (Napa Pipe) and Highway 29 (221). Quad: Napa. Comment
  UCD73501  Deschampsia elongata Ayzik Solomeshch 2007-5-28 s. n. Napa northwest of the city of Napa. Woolls Ranch, 1032 Mt. Veeder Road. 152 Comment
  CAS-BOT-BC43417  Descurainia sophia Peter H. Raven 1953-5-2 5361 Napa Along railroad tracks, Yountville. 76 Comment
  JEPS110779  Dicentra chrysantha Jake Ruygt 1998-6-24 4050 Napa On ridge above Apple Tree Canyon, Blue Ridge. 542 Comment
  UC527961  Dichelostemma capitatum R. Bacigalupi, R. S. Ferris, and Ira L. Wiggins 1933-6-2 6658 Napa 5 mi e St. Helena (on road to Pope Valley) 304 Comment
  UCD148795  Dichelostemma capitatum Ellen Dean; Diana Hickson 2014-4-29 8103 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 603 Comment
  CAS-BOT-BC499418  Dichelostemma capitatum Willis L. Jepson 1897-1-1 s.n. Napa St. Helena, Napa River Basin Comment
  HSC45346  Dichelostemma capitatum subsp. capitatum R. York 1978-4-8 111 Napa 2 mi. W of Angwin on Hwy. 128 305 Comment
  JEPS110908  Dichelostemma capitatum subsp. capitatum Jake Ruygt 1982-2-24 1107 Napa Calistoga Grade, Mt. St. Helena 350 Comment
  UCD117811  Dichelostemma capitatum subsp. capitatum Eileen Hollett; Plant Biology 102 Collectors 2012-4-29 7 Napa Las Posadas State Experimental Forest. Along dirt road 0.1 miles northeast of fire station. North side of the road. 518 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
  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
  UCD68011  Dichelostemma congestum P. J. Plummer 1995-5-27 s.n. Napa Napa County Highway 128. Ascending, growing on grassy East facing hillside. Flowers, lavendar. 335 Comment
  SEINET8476739  Dichelostemma ida-maia M. Ackley 1968-5-12 1149 Napa Napa Valley. Comment
  HSC43971  Dichelostemma volubile Robert M. Specht 1977-5-14 891 Napa Near junction of Develhead Rd. and Morgan Valley Rd. 463 Comment
  CAS-BOT-BC153771  Diplacus angustatus J. W. Stacey 1933-5-16 s.n. Napa Howell Mt. Comment
  CAS-BOT-BC153778  Diplacus angustatus Barbara Ertter; Jeffrey Strachan 1980-5-9 3329 Napa Las Posadas State Experimental Forest on Howell Mountain 1-2 mi east of Angwin 548 Comment
  CAS-BOT-BC153779  Diplacus angustatus John Thomas Howell 1940-5-19 15465 Napa Upper St. Helena Creek Comment
  CAS-BOT-BC150361  Diplacus aurantiacus Ira L. Wiggins 1949-4-30 12077 Napa Along old toll road between Calistoga and Middletown, about 1.5 miles from Calistoga Comment
  SEINET13682807  Diplacus aurantiacus M. J. Williams 1967-5-7 s.n. Napa Howell Mountain [Road?], between St. Helena and Angwin. 259 Comment
  CAS-BOT-BC151960  Diplacus douglasii Maxine Wilkes 1940-5-1 s.n. Napa Headwaters of St. Helena Creek Comment
  CAS-BOT-BC153276  Diplacus kelloggii Alice Eastwood 1915-6-6 4662 Napa Mt. St. Helena Comment
  SEINET183712  Diplacus kelloggii L. Constance 1938-1 2044 Napa Steel Cyn near Capell Valley, 8 mi S of Monticello, Napa Range, N Coast Ranges 305 Comment
  CAS-BOT-BC153282  Diplacus kelloggii Maxine Wilkes 1940-5-1 s.n. Napa Mt. St. Helena Comment
  JEPS8808  Dipsacus fullonum W. L. Jepson 1936-5-30 17562 Napa Napa Valley, Rutherford Rutherford; Napa Valley, Rutherford Comment
  SBBG115721  Distichlis spicata B. Crampton 1962-5-8 6412 Napa ca. 2 mi N of Calistoga, Myrtledale Hot Springs Comment
  JEPS112625  Dodecatheon hendersonii Jake Ruygt 1988-3-26 2128 Napa Toll Canyon 243 Comment
  JEPS112626  Dodecatheon hendersonii Jake Ruygt 1977-4-3 168 Napa hills east of Lake Berryessa at north end (Green Canyon) 243 Comment
  RSA15626  Dodecatheon hendersonii Carl B. Wolf 1928-2-25 1480 Napa Mt. St. Helena Grade, 2 mi. below Hawkins Mt. Camp. Comment
  HSC17857  Dodecatheon hendersonii Greg Bos 1963-3-30 53 Napa 2.5 mi. up the Old Toll Rd. out of Calistoga. E slope 305 Comment
  RSA461376  Dodecatheon hendersonii H. de Forest 1930-3-23 s.n. Napa Mt. St. Helena. Ridge SE from mt. 701 Comment
  UCSB4849  Dodecatheon hendersonii Keator, Glenn 1959-3-28 Napa Near south end of Lake Hennessy, Napa range. Comment
  UCD147463  Downingia Ellen Dean; Diana Hickson 2014-4-29 8076 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 579 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
  UC1189260  Downingia concolor var. concolor Joseph T. Gregory 1933-6-2 224 Napa Howell Mt. top Howell Mt. Comment
  CAS-BOT-BC41387  Draba verna Peter H. Raven 1953-3-29 5208 Napa 2 miles south of Calistoga. 121 Comment
  UC673417  Draba verna Herbert L. Mason 1926-3-14 2739 Napa Mt. St. Helena Comment
  JEPS110553  Drymocallis glandulosa var. glandulosa Jake Ruygt 1995-4-24 3446 Napa Mt. Veeder Road south of Lakoya Road, (Franciscan Estate) 304 Comment
  POM346349  Dryopteris arguta F. R. Fosberg 1967-9-10 48643 Napa Near Haven place above St Helena Comment
  CAS-BOT-BC70946  Dryopteris arguta 1899-7-1 s.n. Napa Mt. St. Helena Comment
  UCD136448  Dryopteris arguta D. H. Hartmann 1942-3-7 s.n. Napa In Green Valley. Comment
  UC1127116  Dudleya cymosa B. O. Schreiber 1938-4-24 2505 Napa 1/2 mi nw Knoxville; Reiff Qaudrangle 609 Comment
  UC674804  Dudleya cymosa Thomas Morley 1941-5-11 131 Napa 5.4 mi ne Pope Valley store (on Middletown Rd) 304 Comment
  CAS-BOT-BC428110  Dudleya cymosa subsp. cymosa Peter H. Raven 1951-5-6 2828 Napa Burn below Conn Dam 274 Comment
  CHSC102266  Dysphania pumilio Lowell Ahart 2009-10-27 16484 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
  CHSC102299  Dysphania pumilio Lowell Ahart 2009-10-12 16443 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
  JEPS126102  Dysphania pumilio Jake Ruygt 1991-6-29 2760 Napa 3.2 miles north of Pope Canyon Road on Barryessa-Knoxville Road. Walter Springs 7.5' Qua. Comment
  POM257337  Echinochloa crus-galli Virginia Long 1931-8-22 104 a Napa Sullivan's Halfway Station (between Calistoga and Mt. St. Helen) 111 Comment
  SEINET186064 Image available Echinochloa crus-galli V. E. Long 1931-8-22 104 a Napa Sullivan's Halfway Station (between Calistoga and Mt. St. Helena); near pumping plant 111 Comment
  JEPS120330  Ehrendorferia chrysantha Jake Ruygt 1987-6-27 2055 Napa Homestake Mine, Knoxville. Knoxville 7.5' Quad. Comment
  JEPS129120  Eleocharis coloradoensis Jake Ruygt 2010-8-24 5755 Napa Barton Hill, northwest shore of Lake Berryessa. Walter Springs 7.5' Quad. 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
  UCD161512  Eleocharis parishii Jake Ruygt 1989-5-9 2311 -a Napa American Canyon, Avilla Ranch. 85 Comment
  JEPS129125  Elodea canadensis Jake Ruygt 2010-8-14 5733 Napa Steele Canyon Resort, Lake Berryessa. Lake Berryessa 7.5' Quad. Comment
  UC769959  Elymus X hansenii Robert F. Hoover 1941-6-8 5321 Napa Mt. St. Helena; e side Comment
  RSA128741  Elymus glaucus P. H. Raven 1950-5-6 2010 Napa Shaded place above where the w. branch of the Napa R. Meets Rt. 29, ca. 1 mile N of Calistoga Comment
  UC1153913  Elymus glaucus Beecher Crampton 1957-6-4 4097 Napa slopes above Capell Creek (n end of valley); Capell Valley Comment
  UC187088  Elymus glaucus J. P. Tracy 1902-5-21 1595 Napa 3-4 mi e Angwin (head of creek); Howell Mountain, Morre's Creek 396 Comment
  UC187095  Elymus glaucus J. P. Tracy 1902-5-21 1594 Napa 3-4 mi e Angwin's (head of creek); Howell Mountain, Moore's Creek 396 Comment
  UCD61848  Elymus glaucus M. Wiesendanger 1927-5-4 702 Napa Monticello, Napa Road. Comment
  UCR25608  Elymus glaucus John C. Roos 1939-5-13 256 Napa North Coast Range, Pacific Union College, Angwin 503 Comment
  HSC10971  Elymus multisetus J. V. Lenz 1947-5-14 Napa SW of Monticello Comment
  UCD160740  Elymus multisetus Ellen Dean 2015-5-23 8792 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. 240 Comment
  UCD62437  Elymus multisetus E. G. Cakin 1947-5-14 Napa Near Chemilele Farm Center, Monticello-Napa road. Comment
  CAS-BOT-BC213803  Elymus repens Peter H. Raven 1952-8-26 5151 Napa Road NE of Buchli Station 30 Comment
  CAS-BOT-BC204245  Elymus trachycaulus subsp. subsecundus Peter H. Raven 1952-5-31 4158 Napa Rector Dam 152 Comment
  UCD167092  Elymus trachycaulus subsp. trachycaulus Jake Ruygt 2015-7-4 6145 Napa Missimer - Snell Valley Preserve. 180 Comment
  JEPS110831  Emmenanthe penduliflora Jake Ruygt 1989-5-9 2306 Napa about 1/2 mile south of Monticello Dam on Vaca Mtns. 396 Comment
  UCD48052  Emmenanthe penduliflora B. Takahashi; S. Burgess, A. Hufton, J. Pierner, A. Ryan 2000-4-29 5 Napa Yolo Co/Napa Co line; McLaughlin Reserve, 1 mile (as the crow the flies) N of the old town of Knoxville. 609 Comment
  UCD119205  Emmenanthe penduliflora K. Esau; E. Hyde 1938-5-25 s.n. Napa location unknown. Comment
  SD147979  Epilobium canum subsp. latifolium D. Sanchez-Mata, P. Rodriguez-Rojo 1996-10-19 Napa Knoxville-Berryessa Road. Perennial plant communities in basaltic rocky slopes near Spanish Flat. 220 Comment
  UCD67889  Epilobium canum subsp. latifolium D. Sanchez-Mata; P. Rodriguez-Rojo 1996-10-19 s.n. Napa Knoxville-Berryessa Road. Near Spanish Flat. 220 Comment
  UC19960  Epilobium densiflorum Willis L. Jepson 1892-7 Napa Knoxville Comment
  UCD167133  Epilobium densiflorum Jake Ruygt 2015-5-23 6115 Napa Missimer - Snell Valley Preserve. 172 Comment
  UC19944  Epilobium densiflorum F. T. Bioletti 1892-8-15 Napa Napa Junction Comment
  RSA37535  Epilobium foliosum Milo S. Baker 1942-5-27 10204 Napa Summit of Spring Mt. Road, along road turning north, near boundary of Sonoma and Napa Counties 619 Comment
  JEPS110714  Epilobium minutum Jake Ruygt 1981-5-6 1017 Napa .2 mile east of Walter Springs on Pope Canyon Rd. 182 Comment
  UCD106515  Epilobium minutum G. F. Hrusa 1995-4-2 12045 Napa North Coast Biodiversity Arena. Alongside Highway 128. 200 Comment
  SBBG50823  Epilobium minutum G. L. Young 1974-4-13 11 Napa SW 1/4 T9N, R5W, S15 Comment
  UCD167253  Epilobium minutum Jake Ruygt 1983-4-17 1433 Napa Red Hill, Mt. St. Helena. 655 Comment
  SEINET8512943 Image available Epipactis gigantea J. M. Tucker 1954-6-13 2709 Napa Putah Creek, 3.5 mi. above Recreation Beach Comment
  UC1196439  Epipactis gigantea J. P. Tracy 1899-7-2 452 Napa Canyon of Moore's Creek Howell Mountain 335 Comment
  CAS-BOT-BC56978  Equisetum arvense Peter H. Raven 1952-5-31 4111 Napa Conn Cr. e. of Yountville 45 Comment
  JEPS103965  Equisetum telmateia Jake Ruygt 1993-3-7 3169 Napa end of Conn Valley Rd. (county road) 97 Comment
  CDA34666  Eragrostis hypnoides L. Ahart 2009-10-12 16464 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
  UCD164817  Eragrostis hypnoides Jake Ruygt 2012-9-15 5880 Napa Putah Creek south of Berryessa Estates 131 Comment
  RSA140853  Eremocarpus setiger John H. Thomas 1960-8-29 8836 Napa About 1 mile north of Calistoga along highway number 53. Comment
  UC31075  Ericameria arborescens W. L. Jepson 1894-10-14 Napa near Calistoga (Rebecca Ranch Grade) Comment
  JEPS122653  Ericameria parryi var. latior Jake Ruygt 1979-7-28 777 Napa Mt. St. Helena on fire trail. Quad: Detert Reservoir Comment
  UCD63173  Erigeron biolettii Jake Ruygt 1978-9-9 412 Napa 1.4 miles northeast of College Ave. on Howell Mt. Rd. 573 Comment
  JEPS106947  Erigeron foliosus var. franciscensis Jake Ruygt 1990-6-9 2589 b Napa Arrowhead Mountain 228 Comment
  JEPS106942  Erigeron greenei Jake Ruygt 1997-7-5 3873 Napa Sugarloaf Peak, west of Spanish Flat. 574 Comment
  UCD164737  Erigeron greenei Jake Ruygt 2014-6-23 6012 Napa Sutro Ranch southeast, Atlas Peak. 731 Comment
  JEPS120379  Erigeron reductus var. angustatus Jake Ruygt 1996-9-14 3790 Napa east side of Soda Valley, White Cliff Comment
  CDA10860  Eriodictyon californicum G. F. Hrusa, M. Rejmanek 1993-5-15 10955 Napa University of California, Quail Ridge Reserve betw. Hwy 128 and Lake Berryessa. Comment
  UCD18161  Eriodictyon californicum Eva Bayon; with PLB 102 class 2000-4-29 s.n. 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-BC242610  Eriogonum dasyanthemum H. M. Hall 1923-10-12 11923 Napa 16 mi. west of Monticello, on road to Lowerlake Comment
  CAS-BOT-BC242613  Eriogonum dasyanthemum Peter H. Raven 1951-10-28 3954 Napa 4 mi. s. of Knoxville on road 365 Comment
  POM204403  Eriogonum luteolum J. T. Howell 1933-8-17 11622 Napa Sage Canyon, Napa Range Comment
  POM209232  Eriogonum luteolum S. G. Stokes 1933-8-27 92 Napa Upper part of Sage Valley, Napa Mountains. Comment
  RSA102056  Eriogonum luteolum John H. Redfield 1872-8-28 328 Napa Prope Calistoga Comment
  RSA491701  Eriogonum luteolum var. luteolum James L. Reveal 1987-6-7 6411 Napa Along Oakville Grade, 1.5 miles southwest of Oakville, about 6 airline miles south of St. Helena 244 Comment
  UC6530  Eriogonum luteolum var. luteolum Willis L. Jepson 1893-9-21 Napa Wooden Valley grade Napa River Basin, Wooden Valley grade Comment
  UCD73451  Eriogonum luteolum var. luteolum 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
  UCD164823  Eriogonum luteolum var. luteolum Jake Ruygt 2012-9-15 5876 Napa South of Spanish Valley. 347 Comment
  UCD149073  Eriogonum nervulosum G. Ledyard Stebbins 1985-6-17 C 534 Napa Northwest of Dunnigan Hill. West of Hunting Creek. Southwest of Knoxville. (Exact location unknown. Coordinates estimated by label maker.) 432 Comment
  UC521699  Eriogonum nudum var. auriculatum Joseph Andorfer Ewan 1933-9-17 8001 Napa near Stevenson monument; Mt. St. Helena Comment
  UC534875  Eriogonum nudum var. auriculatum Susan G. Stokes 1933-8-27 87 Napa Sage Valley Napa Mountains, Sage Valley Comment
  CAS-BOT-BC124286  Eriogonum nudum var. nudum Susan Gabriella Stokes 1933-8-27 88 Napa Near Chiles Valley, Napa Range Comment
  RSA393327  Eriogonum nudum var. nudum E. S. Spalding 1924-7-5 s.n. Napa Near St. Helena Comment
  RSA766355  Eriogonum nudum var. nudum Joseph A. Ewan 1933-9-17 8001 Napa Near Stevenson Monument, Mt St Helena Comment
  CAS-BOT-BC269714  Eriogonum nudum var. oblongifolium L. R. Abrams 1916-7-2 5766 Napa Near St. Helena Sanitarium Comment
  UCD164789  Eriogonum nudum var. oblongifolium Jake Ruygt 1981-5-27 1049 Napa American Canyon, .4 mile east of Flosden Road. 152 Comment
  JEPS120314  Eriogonum umbellatum var. smallianum Jake Ruygt 1998-7-11 4083 Napa Blue Ridge, about 1.5 miles north of Mays Flat. Knoxville 7.5' Quad. Comment
  UC90304  Eriophyllum confertiflorum var. confertiflorum A. W. Robinson Napa Napa Comment
  CDA37351  Eriophyllum lanatum D. G. Kelch 2010-5-6 10 .166 Napa Wooden Valley Road, about 5 km north of Napa/Solano county line, north of Rockville. Comment
  UCD132167  Eriophyllum lanatum J. D. Clark 1995-5-27 10 Napa collected on trail between 1/4 - 3/4 mile from trailhead at Highway 29. Trailhead begins on the east side of Highway 129 across from the Robert Lewis Stevenson State park parking lot. 548 Comment
  POM315944  Eriophyllum lanatum var. achilleoides Patricia Wilder 1965-6-9 3602 Napa Franz Valley School Road, ca. 1.1 mile N of road to Petrified Forest 183 Comment
  CAS-BOT-BC301050  Eriophyllum lanatum var. achilleoides H. E. McMinn No date on label 956 Napa Unspecified Comment
  UCSB6525  Eriophyllum lanatum var. arachnoideum Keator, Glenn 1958-6-16 Napa Near the east end of Lake Hennessy, Napa range Comment
  JEPS34725  Eriophyllum latilobum W. L. Jepson 1936-5-29 17554 Napa Adam-and-Eve Ridge Howell Mt., Adam-and-Eve Ridge Comment
  JEPS61367  Erodium botrys W. L. Jepson 1923-4-29 9884 Napa St. Helena Comment
  UCD41464  Erodium botrys Ellen Dean; Deborah Canington 2003-3-1 1361 Napa Napa County. Quail Ridge UC Reserve. Southern end of Lake Berryessa, first peninsula west of Monticello Dam. By university gate at sign-in post. 390 Comment
  JEPS61368  Erodium brachycarpum W. L. Jepson 1924-4-6 10325 Napa Napa Valley, Conn Creek Conn Creek; Napa Valley, Conn Creek Comment
  UCD159939  Erodium brachycarpum 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
  UCR12067  Erodium brachycarpum Coleta A. Lawler 1964-3-24 11 Napa Henry Road, c. 0.5 mi. from junction with Buhman Avenue, c. 3 mi. west of Napa 8 Comment
  JEPS129141  Erodium moschatum Jake Ruygt 1980-3-2 805 Napa Corner of Marin Street and H Street, Napa. Napa 7.5' Quad. Comment
  OBI74549  Eryngium aristulatum David J. Keil 1986-11-8 19795 Napa Along Lake Berryessa Knoxville Rd. near Knoxville. 3.0 mi south of turnoff to Homestake McLauglin Mine/Mill. 350 Comment
  JEPS101784  Eryngium aristulatum var. aristulatum Dean W. Taylor 1999-7-20 17287 Napa Crystal Lake (large vernal lake west of Highway 128 and Capell Creek) 350 Comment
  JEPS17445  Eryngium aristulatum var. aristulatum Willis L. Jepson 1893-4-26 14276 Napa Rutherford Comment
  RSA0020856  Eryngium aristulatum var. aristulatum David J. Keil 1986-11-8 19795 Napa Along Lake Berryessa Knoxville Road near Knoxville. 3.0 miles south of turnoff to Homestake McLaughlin Mine/Mill. 350 Comment
  UC1784182  Eryngium armatum Ethel Crum 1930-7-13 817 Napa hill near Napa Comment
  UCD160709  Eryngium castrense Ellen Dean; Jake Ruygt 2015-5-23 8768 Napa Knoxville Wildlife Area. California Dept. of Fish and Wildlife public lands. Headwaters of Nevada Creek.NE corner of land parcel. 592 Comment
  UC1784218  Eryngium pinnatisectum Ethel Crum 1930-7-13 812 Napa near Calistoga Comment
  CAS-BOT-BC54302  Erysimum capitatum John Thomas Howell 1931-4-2 6086 Napa Summit of Wooden Valley Grade, 8 miles east of Napa. Comment
  CAS-BOT-BC40899  Erysimum capitatum G. B. Rossbach; R. P. Rossbach 1938-6-1 852 Napa Above Wooden Valley on side toward Napa, about 7 miles northeast of Napa. 487 Comment
  UC673520  Erysimum capitatum H. L. Mason 1926-3-14 2725 Napa Mount St. Helena Comment
  SJSU1353  Erythronium californicum J. W. Tilden 1953-5-24 1040 Napa NE slope Mt St Helena 457 Comment
  CAS-BOT-BC124172  Erythronium helenae Elmer Ivan Applegate 1932-4-4 7037 Napa Volcanic crater region of Mt. St. Helena, northern Napa County; slope just E of the Palasades on old stage road Comment
  CAS-BOT-BC133282  Erythronium helenae Elmer I. Applegate 1934-3-11 8842 Napa St. Helena Creek, half a mile south of Lake County line Comment
  JEPS113963  Erythronium helenae Jake Ruygt 1976-4-15 10 Napa 3.1 miles west of Butts Canyon Road on Aetna Springs Road. Aetna Springs 7.5' Quad. Comment
  UC13786  Erythronium helenae Miss Armstrong Mar. 1900 Napa Oa<t?> Hill Comment
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May 1 2014
  JEPS110735  Eschscholzia caespitosa Jake Ruygt 1994-3-15 3314 Napa Chiles Canyon Road about 1 mile from Chiles Valley 350 Comment
  JEPS51748  Eschscholzia caespitosa Willis L. Jepson 1893-4-28 Napa Wooden Valley grade Napa River Basin Comment
  UCD73388  Eschscholzia caespitosa 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
  CAS-BOT-BC402788  Eschscholzia caespitosa Ira L. Wiggins 1949-4-30 12078 Napa Along old toll road between Calistoga and Middletown, about 2.5 mi. from Calistoga Comment
  CAS-BOT-BC402789  Eschscholzia caespitosa J. Clausen 1935-5-22 1067 Napa 19.5 mi. S. E. of Lower Lake on the Monticello road, near Knoxville (ca. 1.3-1.6 mi. S. of Knoxville) Comment
  JEPS21000  Eschscholzia caespitosa Willis L. Jepson 1893-4-28 Napa Wooden Valley Grade from Napa City Napa River Basin Comment
  UCD15073  Eschscholzia caespitosa Nicholas Ewing 1977-4-16 16 Napa California, Napa Co.; 0.8 miles east along East Bull Canyon off of Highway 128, 7.4 miles south-southwest of Monticello Dam; 152 Comment
  SD8239  Eschscholzia californica Brandegee Apr 1888 Napa Mt. St. Helena. Comment
  UC126645  Eschscholzia californica Harley P. Chandler Sep 7 1906-Sep 14 1906 7132 Napa Alta Loma Ranch Howell Mountain 487 Comment
  UCD73445  Eschscholzia californica 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
  CAS-BOT-BC5900  Eschscholzia formosa Charles Fuller Baker 1903-4-20 2614 Napa Mount St. Helena Comment
  RSA10671  Euphorbia crenulata C. B. Wolf 1928-5-3 1818 Napa 5 miles north of Calistoga, Mt. St. Helena Grade. Comment
  JEPS129137  Euphorbia maculata Jake Ruygt 1978-6-19 365 Napa Trefethen Winery, Oak Knoll Avenue. Napa 7.5' Quad. Comment
  UCD142806  Euphorbia serpillifolia Freed W. Hoffman 1946-8-20 856 Napa Soda Creek. Comment
  JEPS104523  Eurybia radulina Jake Ruygt 1996-6-24 3761 Napa Jamieson Vineyards, Jameson Canyon. 79 Comment
  CDA34652  Euthamia occidentalis L. 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. Comment
  OBI74551  Euthamia occidentalis David J. Keil 1986-11-8 19797 Napa Along Lake Berryessa Knoxville Rd near Knoxville. 3.0 mi S of turnoff to Homestead McLaughlin Mine/Mill 350 Comment
  JEPS84610  Festuca arundinacea John W. Willoughby 1979-5-25 4305 Napa about 1 mi s Signal Hill (just below and to the w of Blue Ridge); Vaca Mountains, Pansy Flat 609 Comment
  CHSC108741  Festuca californica B. Castro; L. P. Janeway 2002-5-12 1366 Napa Inner North Coast Ranges. Near top of ridge on northeast side of Pocock Creek along the dirt road from Devilhead Road. NNW-facing slope at edge of road opening and cutbank. 536 Comment
  UCD65832  Festuca californica Collector unknown 1941-6-1 Napa Road from Napa to Locoya. Comment
  RSA125842  Festuca elmeri P. H. Raven 1957-5-5 10759 Napa Hills at western edge of Calistoga. 152 Comment
  UCD65968  Festuca idahoensis Beecher Crampton 1956-5-25 3458 Napa Vaca Mtns. Head of Markley Canyon. Comment
  CAS-BOT-BC279008  Festuca rubra Peter H. Raven 1951-5-20 2837 Napa W. Oakville 91 Comment
  CAS-BOT-BC279009  Festuca rubra Peter H. Raven 1952-5-31 4152 Napa W. of Rector Dam 182 Comment
  SEINET10508611  Festuca tracyi Joseph P. Tracy 1902-5-15 Tracy 1479 Napa Head of Moore's Creek, 3-4 mi. E. of Angwin's Howell Mt. Comment
  RSA132842  Filago californica John H. Thomas 1958-4-19 7110 Napa About 2 miles SW of Oakville. 152 Comment
  UCD161315  Foeniculum vulgare Jake Ruygt 1978-6-18 357 Napa Napa, near railroad track south of Imola Avenue. (Coordinates estimated by label maker at UC Davis). 3 Comment
  CAS-BOT-BC53524  Frangula californica subsp. tomentella Mrs. G. Earle Kelly 1918-8-1 s.n. Napa Mt. St. Helena Comment
  CAS-BOT-BC53527  Frangula californica subsp. tomentella H. E. McMinn 1922-7-1 295 Napa Pope Canyon Comment
  CHSC108737  Fraxinus dipetala B. Castro; L. P. Janeway 2002-5-12 1367 Napa Inner North Coast Ranges. Near top of south side of canyon of Cedar Creek, along the road from Devilhead Road. Near road edge. 563 Comment
  HSC46117  Fraxinus dipetala J. P. Smith, J. O. Sawyer 1970-5-17 3787 Napa 9 mi. N of Pope Valley Comment
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Jun 12 2012
  UC1123368  Fraxinus dipetala A. Lewis 1932-5-16 80 Napa Weldon Canyon Napa Quad. 701 Comment
  JEPS122729  Fraxinus latifolia Jake Ruygt 1987-4-28 1965 Napa 0.9 miles north of Trancas Street on Silverado Trail. Quad: Napa. Comment
  JEPS78436  Fraxinus latifolia Edward Lee 1936-3-15 1803 Napa 0.75 mi out of Rutherford (Rutherford to Pope Valley road) Comment
  CAS-BOT-BC26115  Fremontia napensis Mrs. Myron Hobson 1926-5-10 s.n. Napa North side of Mt. St. Helena Comment
  CAS-BOT-BC205890  Fremontodendron californicum M. A. Nobs 1939-6-3 s.n. Napa Half way between Monticello and Lower Lake Comment
  CAS-BOT-BC205893  Fremontodendron californicum Herbert L. Mason 1935-5-30 10009 Napa Four miles north of Knoxville Mines Comment
  RSA121147  Fremontodendron californicum B. O. Schreiber 1936-9-20 2354 Napa 5 miles S of Reiff. 762 Comment
  SEINET8478778  Fritillaria affinis W. Roderick 1967-3-5 s.n. Napa Butts Canyon. 457 Comment
  UCD36150  Fritillaria affinis Beecher Crampton 1953-2-26 988 Napa 6 miles east of Monticello, on Highway 128, above Putah Creek. Comment
  CAS-BOT-BC506161  Fritillaria micrantha Loraine Hart; John Barry 1928-4-21 3626 Napa Mount Saint Helena beyond crater east of chamise lilies Comment
  CAS-BOT-BC130487  Fritillaria purdyi Elizabeth Wright 1922-4-1 s.n. Napa Near Calistoga Comment
  UC583533  Fritillaria purdyi Elmer I. Applegate 1932-4-4 7038 Napa n of Calistoga (Mayacama Range, Palisades); Mayacama Range, Palisades Comment
  UC765859  Fritillaria recurva R. F. Hoover 1941-4-26 4939 Napa e side of Mount St. Helena Mount St. Helena Comment
  UCSC010491  Fritillaria recurva Dylan M. Neubauer, Tim Forsell 2016-4-1 610 Napa (NCoRI) just e Butts Canyon Road, .91 air-mile s junction with Snell Valley Road 327 Comment
  CAS-BOT-BC508187  Fritillaria recurva Alice Eastwood 1923-4-12 s.n. Napa Soda Springs Comment
  JEPS61954  Fritillaria recurva Willis L. Jepson 1893-5-5 14819 Napa ne side of Mount St. Helena, Middletown Grade Mount St. Helena; , Middletown Grade Comment
  UC672098  Fritillaria recurva Herbert L. Mason 1926-3-14 2732 Napa e side of Mount St. Helena, Toll House Canyon Toll House Canyon; Mount St. Helena, Toll House Canyon Comment
  UCD160741  Galium andrewsii Ellen Dean 2015-5-23 8793 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. 240 Comment
  UCD48193  Galium andrewsii subsp. andrewsii Robert Wolfson; J. Westbrook,S. Ratay,A. Houser,M. Disney,S. Wathen 2000-4-22 38 Napa Napa Co, McLaughlin Reserve, approx. 0.5 miles South of Berryessa-Knoxville Rd. Along east side of Devilhead Rd, 1st ridge south of Devihead Rd. 518 Comment
  UCD18063  Galium andrewsii var. andrewsii Ellen Dean; with Plant Biology 102 class 2000-4-22 618 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
  UC28176  Galium aparine Willis L. Jepson 1893-5-1 Napa Calistoga Napa River Basin 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
  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
  HSC49622  Galium aparine R. York 1979-4-8 207 Napa Along Silverado Trail Rd., 5 mi. N of Napa Comment
  UC1034624  Galium bolanderi Milo S. Baker 1932-5-1 5715 Napa about 8 mi from Monticello; Pope Cr. Comment
  UC1196107  Galium californicum subsp. californicum Joseph P. Tracy 1899-6-26 426 Napa 3-4 mi e Angwin's (on hills at head of Moore's Creek); Northern Coast Ranges, Howell Mountain 365 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
  UC710612  Galium divaricatum John Thomas Howell 1943-6-19 18237 Napa hills w Napa Valley (between St. Helena and Mt. St. John) 228 Comment
  UCR43199  Galium nuttallii L. F. LaPre 1985-4-25 s.n. Napa Inner North Coast Ranges, 'Rare Plant Canyon,' 2 mi SW of Knoxville, just east of Lake Co. Line 367 Comment
  UCD13190  Galium nuttallii Mark Streig 1976-4-22 1 Napa Lake Berryessa, 0.5 mi W of Monticello Dam, along hwy 128. Comment
  UCD38609  Galium porrigens Beecher Crampton 1956-5-25 3485 Napa Howell Mtns. 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
  JEPS52755  Galium porrigens var. porrigens Lauramay T. Dempster and G. L. Stebbins 1963-5-26 3780 B Napa n St. Helena (junction of road to Angwin and road to Sanitarium) Comment
  JEPS6612  Galium porrigens var. porrigens W. L. Jepson 1944-5-21 27523 Napa 4 mi e Rutherford Comment
  CDA11161  Garrya congdonii G. F. Hrusa, G. L. Stebbins, J. Callizo 1993-12-3 11573 Napa North Coast Biodiversity Arena; 2 m. NW of Aetna Springs along Schwartz Ck. Rd. Comment
  CDA14220  Garrya congdonii G. F. Hrusa 1997-2-3 13617 Napa North Coast Biodiversity Arena; margin of Lake Hennessey, across from 2nd major canyon upstream from Conn Dam ~ 1/2 mi. Comment
  UC1122625  Garrya congdonii B. Schreiber 1936-9-20 2353 Napa 5 mi s Reiff; Reiff Quad. 762 Comment
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Jan 14 2009
  UCD18122  Garrya congdonii K. Carpenter; with E. Dean and K. Chaney. 2000-8-18 59 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
  JEPS66757  Garrya flavescens W. L. Jepson 1936-2-8 17400 Napa Adam and Eve Ridge; Howell Mt. Comment
  POM259610  Garrya flavescens subsp. congdonii J. T. Howell 1939-5-7 14652 Napa On Lower Lake-Knoxville road at Lake county line. Comment
  CAS-BOT-BC144413  Garrya fremontii C. Hart Merriam 1907-7-10 s.n. Napa Howell Mt. Comment
  UC1618117  Garrya fremontii Donald G. Nelson 1940-8-7 703 Napa about 1 mi nw Knoxville (on road to Clear Lake) Comment
  CDA38570  Garrya fremontii H. Stabo 1959-9-1 s.n. Napa E. St. Helena hills. 0 Comment
  CAS-BOT-BC208042  Genista monspessulana Peter H. Raven 1952-5-26 4040 Napa St. Helena to Howell Mt. 304 Comment
  UCD73510  Genista monspessulana Ayzik Solomeshch 2007-5-28 s. n. Napa northwest of the city of Napa. Woolls Ranch, 1032 Mt. Veeder Road. 152 Comment
  RSA0028368  Geranium carolinianum Carl B. Wolf 1928-5-3 1802 Napa 5 miles north of Calistoga, Mt. St. Helena Grade. Comment
  JEPS61424  Geranium dissectum H. P. Chandler 1907-4-28 7553 Napa Santa Rosa to Calistoga Comment
  UCD103392  Geranium dissectum M. R. Wanzer 1948-5-22 25 Napa Putah Canyon, 12.5 miles west of Winters. Comment
  JEPS106707  Geranium molle Jake Ruygt 1994-3-15 3413 Napa Chiles Valley Raod about 1 mile from Chiles Valley 335 Comment
  JEPS106750  Geranium purpureum Jake Ruygt 1976-5-14 75 Napa 4.0 miles west of HWY 29 on Redwood Rd. 97 Comment
  RSA63719  Gilia capitata Verne Grant, Alva Grant 1947-5-11 7985 Napa ca. 8 miles NE of Vichy Springs on Monticello road, Mayacama Mountains. Comment
  UC1563722  Gilia capitata subsp. capitata Barbara Ertter with Annetta Carter 1989-5-28 8512 Napa on Berryessa Rd 2 mi se Lake Co. line (near Knoxville, extreme n Napa Co.); near Knoxville 609 Comment
  UC914293  Gilia capitata subsp. capitata Verne Grant, Alva Grant 1947-5-4 7968 Napa wooded canyon ca 8 mi ne Vichy Springs (on Monticello Road, Mayacama Mountains); Mayacama Mountains, ne of Vichy Springs Comment
  JEPS69530  Gilia capitata subsp. capitata W. L. Jepson 1896-6-2 15074 Napa hills at mouth of Conn Valley on edge Napa Valley; edge of Napa Valley, mouth of Conn Valley Comment
  UCD117697  Gilia capitata subsp. capitata Carl A. Huether 1965-5-7 66 Napa south side of Soda Creek. Comment
  CAS-BOT-BC257666  Gilia tricolor R. C. Wenk; E. S. Wenk 2006-4-30 434 Napa Robert Louis Stevenson State Park. Trail going east from Highway 29 parking lot for trail to Mt. St. Helena. 1/2 mile from parking lot on left side of trail Comment
  UCD148838  Gilia tricolor Ellen Dean; Diana Hickson 2014-4-29 8142 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 511 Comment
  JEPS110951  Gilia tricolor subsp. diffusa Jake Ruygt 1991-5-11 2671 Napa Little Bear Valley, near Sugarloaf Mtn. 694 Comment
  JEPS86005  Gilia tricolor subsp. tricolor C. F. Sonne Apr. 1888 Napa Sierra Nevada Mountains Comment
  UC908613  Gilia tricolor subsp. tricolor Herbert L. Mason 1926-3-14 2731 Napa Mount St. Helena Comment
  UCSB9986  Githopsis specularioides Kamb, Peter; Chisaki, Francia 1950-4-22 Napa Canyon of Sage Creek about 3 miles east of Chiles Valley 304 Comment
  CHSC102525  Glinus lotoides Lowell Ahart 2009-10-12 16444 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.F 133 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
  JEPS122935  Glyceria occidentalis Jake Ruygt 1996-5-11 3659 Napa SE of Suscol; Napa Sanitation district; Somky Ranch. Quad: Cuttings Wharf. Comment
  JEPS122936  Glyceria occidentalis Jake Ruygt 1992-5-6 2933 Napa West of Foster Road, Napa (Raynes property). Quad: Napa. 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
  JEPS4235  Gratiola ebracteata W. L. Jepson 1936-5-30 17558 Napa Rutherford Napa Valley (Napa Valley) Comment
  UC1196813  Gratiola ebracteata J. P. Tracy 1902-5-18 1532 Napa head of Moore's Creek Howell Mountain (3-4 mi e of Angwin's, La Jota Plateau, Howell Mountain); , , La Jota Plateau 518 Comment
  UC147897  Gratiola ebracteata J. P. Tracy 1902-5-21 1611 Napa head of Moore's Creek Howell Mountain (3-4 mi e of Angwin's); , head of Moore's Creek 518 Comment
  UC517480  Gratiola ebracteata John Thomas Howell 1933-5-21 11322 Napa Napa Comment
  UCR44911  Grindelia camporum L. F. LaPre, R. Bjork 1986-7-13 s.n. Napa Inner North Coast Ranges, Hunting Creek, 0.5 mi south of Dunnigan Hill. SE of Clear Lake, near the county line. 335 Comment
  CAS-BOT-BC304883  Grindelia hirsutula Marcus E. Jones 1924-4-24 s.n. Napa Napa Comment
  CAS-BOT-BC304910  Grindelia hirsutula John Thomas Howell 1930-7-13 5346 Napa Lower slopes of Mt. St. Helena Comment
  JEPS121525  Grindelia hirsutula Adam C. Schneider with Dick O'Donnell 2013-5-26 234 Napa North side of Butts Road, 3/4 miles southeast of Lake/Napa county line. Comment
  JEPS41928  Grindelia hirsutula Willis L. Jepson 1894-7-19 Napa upper Napa Valle; Napa Valley Comment
  JEPS7832  Grindelia hirsutula Peter H. Raven 1950-6-20 2355 Napa between Conn Valley and Howell Mt.; Napa Range Comment
  SEINET3142699  Grindelia hirsutula M. P. Dunford 1959-10-3 556 Napa 3/4 mi. N of Samuel Springs; along Trout Creek, 100 yards S of creek mouth Comment
  SEINET181248  Grindelia hirsutula var. hirsutula Bassett Maguire, RR Maguire; C. B. Maguire 1934-6-7 15299 Napa 20 miles N of Napa Comment
  POM143656  Guillenia lasiophylla C. F. Baker 1903-4-20 2629 Napa Mt. St. Helena. Comment
  JEPS106919  Gutierrezia sarothrae Jake Ruygt 1998-8-29 4109 Napa Blue Ridge, about 1.5 mile north of Mays Flat. 701 Comment
  CAS-BOT-BC302221  Harmonia nutans John Thomas Howell 1931-4-2 6075 Napa Wooden Valley Grade 5 miles east of Napa Comment
  CAS-BOT-BC302228  Harmonia nutans R. Bacigalupi 1946-3-30 2775 Napa At Milliken Dam, on mesa west of reservoir, more or less 10 miles northeast of Napa Comment
  CAS-BOT-BC302229  Harmonia nutans R. F. Hoover 1941-4-27 4944 Napa Near Yountville Comment
  CAS-BOT-BC302230  Harmonia nutans Brandegee 1889-4-1 s.n. Napa Mt. St. Helena Comment
  CAS-BOT-BC302240  Harmonia nutans David D. Keck 1933-5-28 2329 Napa Howell Mountain, ca. 1 mile southwest of Pacific Union College 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
  JEPS7511  Harmonia nutans R. F. Hoover 1941-4-27 4944 Napa near Yountville Comment
  UC1245371  Harmonia nutans Joseph P. Tracy 1950-5-23 18663 Napa 5 mi e Angwin's (on hills at head of Moore's Creek); Howell Mountain, La Jota Plateau 518 Comment
  UC518958  Harmonia nutans David D. Keck 1933-5-28 2329 Napa ca 1 mi sw Pacific Union College; Howell Mountain Comment
  UC89166  Harmonia nutans Brandegee April, 1889 Napa Toll House Mt. St. Helena Comment
  JEPS122687  Hedypnois rhagadioloides Jake Ruygt 1984-3-28 1514 Napa West end of North Whitehall Lane. Quad: Rutherford. Comment
  CDA34654  Helenium puberulum L. Ahart 2009-10-12 16423 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
  CHSC102532  Helenium puberulum Lowell Ahart 2009-10-27 16479 Napa Below the high water line of Lake Berryessa, about 50 yards southeast of Eticuera Creek, about 150 yards south of Eticuera Parking Area at the northeast end of souththe causeway, on the south side of Berryessa Knoxville Road, about 20 miles (air) northwest of Winters. 130 Comment
  JEPS35542  Helenium puberulum W. L. Jepson 1936-7-6 17649 Napa Sage Canyon Napa Range, Sage Canyon 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
  UC127186  Helenium puberulum Harley P. Chandler Sep 7 1906-Sep 14 1906 7109 Napa Alta Loma Ranch Howell Mountain 487 Comment
  JEPS21038  Helianthella californica subsp. californica Willis L. Jepson 1893-6-26 Napa Howell Mt. Napa River Basin Comment
  JEPS33582  Helianthella californica subsp. californica W. L. Jepson 1938-5-24 18843 Napa plateau n Four Corners; Napa Range, Howell Mtn. 883 Comment
  JEPS35463  Helianthus bolanderi W. L. Jepson 1938-9-24 19018 Napa Canyon of James Creek Pope Valley, Canyon of James Creek 304 Comment
  UC221395  Helianthus bolanderi H. M. Hall 1923-10-12 11927 Napa 16 mi se Lowerlake (n Napa Co.) Comment
  UCD63181  Helianthus bolanderi Jake Ruygt 1986-7-5 1861 Napa Devilshead Rd. at road to 'sensitive plant canyon'. 472 Comment
  JEPS105354  Helianthus exilis Dean W. Taylor 1994-10-7 14712 Napa Butts Canyon Road 1.2 mi S junction Snell Valley Road 304 Comment
  CHSC103019  Heliotropium curassavicum Lowell Ahart 2009-10-12 16432 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
  RSA81516  Hemizonia clevelandii James I. McMurphy 1909-8-7 696 Napa Calistoga. Comment
  CAS-BOT-BC306145  Hemizonia congesta subsp. clevelandii H. M. Hall 1924-10-4 12112 Napa Calistoga, (Myrtledale Spring) Comment
  UC222700  Hemizonia congesta subsp. clevelandii H. M. Hall 1923-10-15 11950 Napa 2 mi nw Calistoga; Martindale's Spring Comment
  UC194237  Hemizonia congesta subsp. lutescens H. M. Hall 1916-8-6 10262 Napa 7 km s Napa Comment
  UC197528  Hemizonia congesta subsp. lutescens H. M. Hall 1915-8-12 10095 Napa near Napa Junction Comment
  UC174177  Hemizonia congesta subsp. luzulifolia D. Cleveland 1882-8-23 Napa Aetna Springs Comment
  UCD161645  Hemizonia congesta subsp. luzulifolia Jake Ruygt 2005-10-8 4948 Napa Howell Mountain Road about 0.3 mile south of Deer Park Road. 408 Comment
  RSA81622  Hemizonia fitchii James I. McMurphy 1909-8-7 698 Napa Between Mount St. Helena Pass and Calistoga. Comment
  POM298277  Hemizonia parryi subsp. parryi D. D. Keck, Jens Clausen 1933-11-10 2715 Napa Calistoga, 2 miles N of center of town at the geysers. Comment
  HSC46349  Hesperocyparis sargentii J. P. Smith, J. O. Sawyer 1970-5-17 3786 Napa 9 mi. N of Pope Valley Comment
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Jun 12 2012
  UCD170292  Hesperocyparis sargentii Daniel Potter; Ninh Khuu, Kai Battenberg 2016-2-21 832 Napa Knoxville Wildlife Area, upper Zim Zim Creek drainage east of Knoxville-Devilhead Road. 405 Comment
  JEPS112585  Hesperolinon Jake Ruygt 1997-5-13 3852 Napa Lower Chiles Valley Road near HWY 128; Nichelini property. 298 Comment
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Jan 2 2011
  JEPS22718  Hesperolinon bicarpellatum Katharine Brandegee 1911-6-29 Napa near Aetna Springs; Butts Canyon Comment
  SD51708  Hesperolinon bicarpellatum Helen K. Sharsmith 1952-5-17 4070 Napa North of Cappell Valley road junction 3.8 miles, Steel Canyon. 305 Comment
  UC1212350  Hesperolinon bicarpellatum Helen K. Sharsmith 1951-10-21 4035 Napa 7.2 mi sw Monticello; Inner North Coast Ranges, Steel Canyon Comment
  UC1212356  Hesperolinon bicarpellatum Helen K. Sharsmith 1952-5-31 4109 Napa above creek Sage Creek (w side of valley); Chiles Valley 30 Comment
  UCD167168  Hesperolinon bicarpellatum Jake Ruygt 2015-4-20 6074 Napa Fernandes/ Land Trust, Snell Peak area. 394 Comment
  UCD82615  Hesperolinon bicarpellatum Stephen P. Rae 2009-5-18 s. n. Napa Continuum Vineyards. Ridge above Lake Hennesy and Hwy 128 to the E of the Napa Valley. 427 Comment
  UCD167345  Hesperolinon bicarpellatum Jake Ruygt 2009-6-8 5430 Napa Snell Valley/ Missimer Wildflower Preserve. 213 Comment
  JEPS122904  Hesperolinon breweri Adam C. Schneider 2015-5-19 934 Napa East of Monticello Rd. (CA Hwy 121) Comment
  JEPS127889  Hesperolinon californicum Adam C. Schneider with Dick O'Donnell 2013-5-26 218 Napa About 200 meters west of Butts Canyon Road. Comment
  UC1212439  Hesperolinon californicum Helen K. Sharsmith 1957-6-18 4601 Napa s slope Conn Dam (between Rutherford and Chiles Valley); Inner North Coast Ranges 121 Comment
  UC1212448  Hesperolinon californicum Helen K. Sharsmith 1952-5-31 4114 Napa southern margin of valley near Chiles Valley School; Inner North Coast Ranges, Chiles Valley 304 Comment
  UCD110494  Hesperolinon californicum Milton D. Plocher 1971-5-29 33 Napa 20 yards west of lower Chiles Valley Road, 1.7 miles north of its junction with State Highway 128. Comment
  UC1212454  Hesperolinon californicum Helen K. Sharsmith 1952-5-31 4106 Napa s side Conn Dam (slopes of canyon); Inner North Coast Ranges, Sage Canyon 76 Comment
  UCD167293  Hesperolinon californicum Jake Ruygt 1985-5-25 1606 Napa American Canyon, 0.4 miles east of Flosden Road. 137 Comment
  JEPS122782  Hesperolinon clevelandii Jake Ruygt 1997-5-18 3856 Napa Hogback Mountain. QUAD: Sonoma. Comment
  UCD110504  Hesperolinon clevelandii P. Rodriguez-Rojo 1997-5-31 s.n. Napa Butts Canyon Rd. 285 Comment
  CHSC83405  Hesperolinon disjunctum L. P. Janeway; B. Castro 2002-5-12 7539 Napa Inner North Coast Ranges. Near top of ridge on northeast side of Pocock Creek along the dirt road from Devilhead Road. 536 Comment
  JEPS112586  Hesperolinon disjunctum Jake Ruygt 1988-5-29 2197 Napa Cedar Valley 603 Comment
  JEPS122878  Hesperolinon disjunctum Adam C. Schneider with Will Freyman and Yuri P. Springer 2014-5-19 621 Napa Along Knoxville Devilhead Rd. just south of Knoxville Berryessa Rd. at dirt road junction Comment
  CAS-BOT-BC176236  Hesperolinon disjunctum Helen K. Sharsmith 1952-6-1 4119 Napa Above Knoxville Creek, 0.8 mile south of Knoxville, Monticello Lower Lake road 365 Comment
  JEPS122777  Hesperolinon micranthum Jake Ruygt 1980-5-13 893 Napa Mt. St. John. QUAD: Rutherford Comment
  JEPS122855  Hesperolinon micranthum Adam C. Schneider with Dick O'Donnell 2013-5-28 239 Napa Capell Valley Road, just southeast of intersection with Knoxville Road Comment
  UC1212413  Hesperolinon micranthum Helen K. Sharsmith 1957-5-30 4595 Napa near road from Cappell Valley to Rutherford (Soda Creek canyon); Inner North Coast Ranges, Soda Creek 213 Comment
  UCD36936  Hesperolinon micranthum Beecher Crampton 1956-5-25 3452 Napa Vaca Mountains, Markley Canyon, along new road from Monticello Dam to Napa. Comment
  RSA355182  Hesperolinon micranthum L. F. LaPre 1985-6-8 s.n. Napa Rare Plant Canyon,'' a tributary of Hunting Creek from the east, 2 mi. SW of the site of Knoxville, just E of the Lake Co. line. 366 Comment
  UCD110545  Hesperolinon micranthum Robert E. Preston 1987-6-13 563 Napa ca. 1 mi sw of Big Basin. 292 Comment
  JEPS122787  Hesperolinon sharsmithiae Jake Ruygt 2009-6-18 5438 Napa Sage Canyon, about 1/2 mile south of Nichelini Winery. QUAD: Yountville. Comment
  JEPS122856  Hesperolinon sharsmithiae Adam C. Schneider with Dick O'Donnell 2013-5-28 240 Napa Along west side of Sage Canyon Road, 0.7 mlles south of junction with Lower Chiles Valley Rd. Comment
  JEPS122849  Hesperolinon spergulinum Adam C. Schneider with Dick O'Donnell 2013-5-26 209 Napa Along Aetna Mine Road, by junction with Aenta Springs Rd. Comment
  RSA435710  Hesperolinon spergulinum Robert Gustafson, Don Reynolds 1983-6-7 2740 Napa Butts Canyon Road, about 2 miles north of the Jct. with Aetna Springs Rd. Comment
  UCSC009029  Hesperolinon spergulinum Dylan M. Neubauer 2015-4-24 131 Napa (NCoRI) N side Ink Grade Rd, 1.07 air-miles NW Pope Valley 289 Comment
  JEPS32289  Hesperolinon spergulinum W. L. Jepson 1894-7-19 13542 Napa grade up Mt. St. Helena from Calistoga ((at schoolhouse)) 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
  JEPS106574  Heterocodon rariflorum Jake Ruygt 1986-6-20 1828 Napa NW side of Mt. George 295 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
  UCD164836  Heterocodon rariflorum Jake Ruygt 2012-6-2 5858 -c Napa Spanish Valley on south ridge. 345 Comment
  CAS-BOT-BC143746  Heteromeles arbutifolia James L. Reveal 1987-6-7 6393 Napa Vaca Mountains, along the Gates Canyon Road, 2 miles west of Pleasant Valley Road; about 5.5 miles west-northwest of Vacaville 182 Comment
  HSC47348  Heteromeles arbutifolia Richard Spjut 1978-12-4 5258 Napa Near Lake Barryessa along Hwy. 128 Comment
  JEPS45021  Heteromeles arbutifolia W. L. Jepson Nov 26 1895-Nov 27 1895 13824 Napa St. Helena , Napa River (Stone Bridge, Napa River) Comment
  UCD159954  Heteromeles arbutifolia Alice Warrick 2007-4 s.n. Napa Quail Ridge UC Reserve. 2005 Pleasure Fire burn site, along west loop road, north of Decker canyon. Top of east slope, above Q48. 243 Comment
  UCD73450  Heteromeles arbutifolia Ayzik Solomeshch 2007-5-30 s. n. Napa Brend-Morgan property, ca. 3 miles northeast of city of Napa. 215 Comment
  CAS-BOT-BC310264  Heterotheca grandiflora Peter H. Raven 1953-10-4 6362 Napa Napa-Vallejo Road nr. Dutton's Ldg. turn-off 30 Comment
  RSA518726  Heterotheca oregona var. compacta Barbara Ertter, E. Neese 1988-10-2 7949 Napa Lake Hennessey, ca. 15 airmiles NNW of Napa, on Conn Crk in North Coast Ranges. 91 Comment
  CAS-BOT-BC176952  Heterotheca oregona var. oregona J. C. Semple; S. Heard 1986-8-20 8566 Napa Just N of [Calistogo] Calistoga on CA-29m, 15.3 km SW of Lake county line. Gravel bars of Garnett Creek Comment
  JEPS101835  Hoita macrostachya Dean W. Taylor 1999-7-20 17290 Napa Crystal Lake (large vernal lake west of Highway 128 and Capell Creek) 350 Comment
  UC16290  Hoita macrostachya unknown Aug 1862 1322 Napa Rag Canyon; dry creek bed Comment
  UC1618008  Hoita macrostachya Donald G. Nelson 1940-8-7 698 Napa between Napa and Wooden Valley (n. slopes of George Mt. along Sarco Creek); George Mt., Sarco Creek 152 Comment
  UC1299260  Holocarpha virgata subsp. virgata Freed W. Hoffman 1947-8-20 855 Napa along Trinity road North Coast Ranges Comment
  UC1299261  Holocarpha virgata subsp. virgata Freed W. Hoffman 1947-9-12 1373 Napa Guenoc Rancho North Coast Ranges Comment
  CAS-BOT-BC149993  Holodiscus discolor var. discolor Betty H. Johnson 1958-6-20 660 Napa Along old toll road, near Mt. Mill House, 6.4 miles SW of Middletown Comment
  UCD160786  Hordeum brachyantherum Ellen Dean; D. Potter, D. Hickson, R. Ruygt, C. Donkers 2015-5-2 8666 Napa Knoxville Wildlife Area. California Dept. of Fish and Wildlife public lands. Vicinity of headwaters of Nevada Creek. Northern part of land parcel. 493 Comment
  UCD85463  Hordeum brachyantherum J. Street 1950-6-19 s.n. Napa Pope Valley. Comment
  UCD36306  Hordeum brachyantherum subsp. brachyantherum Beecher Crampton 1953-5-19 1308 Napa Chiles Valley. Digger Pine belt. 10 miles west of Monticello, along Hwy. 128. Comment
  JEPS122922  Hordeum brachyantherum subsp. californicum Jake Ruygt 1996-5-31 3724 Napa South of James Creek Road and Butts Canyon Road, Pope Valley. Quad: Aetna Springs. 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
  UCD85376  Hordeum marinum subsp. gussoneanum K. Esau; E. Hyde 1938-5-25 s.n. Napa Napa County. Comment
  UCD85377  Hordeum marinum subsp. gussoneanum K. Esau; E. Hyde 1938-5-25 s.n. Napa Napa County. Comment
  CAS-BOT-BC284761  Hordeum murinum subsp. glaucum Peter H. Raven 1950-4-15 1704 A Napa Napa Comment
  UCD106054  Hosackia crassifolia Beecher Crampton 1965-6-30 7423 Napa Solano-Napa Counties, Vaca mountains, Mt. Vaca. 859 Comment
  JEPS126088  Hosackia stipularis Jake Ruygt 1981-7-8 1057 Napa Road to Bateman Creek from Montesol; Livermore Road. Detert Reservoir 7.5' Qua. Comment
  CAS-BOT-BC410212  Hypericum concinnum Peter H. Raven 1950-6-20 2380 Napa Howell Mtn. on NNE side Rd to Pope Valley Comment
  JEPS66798  Hypericum concinnum Alice King July, 1919 Napa Mt. St. Helena, Van Ness ranch Comment
  UC19037  Hypericum concinnum Willis L. Jepson Jul 1 1892-Aug 1 1892 Napa Knoxville Comment
  UCSB4123  Hypericum concinnum Chisaki, Francia; Kamb, Peter 1950-6-9 Napa Road to Monticello; about 20 miles south of Lower Lake Comment
  UCD159530  Hypochaeris radicata D. S. Park 2011-4-11 278 Napa Off Redwood Rd. Residential district. 48 Comment
  UCD18373  Iris R. Wenk 2000-5-14 11 Napa SW side of Mayacamas Mountain Rd., off west side of St. Helena Rd. 140 Comment
  UC429167  Iris H. P. Chandler 1907-8-14 7511 Napa 4 mi n St. Helena (near Napa River) Comment
  CHSC58402  Iris fernaldii Karen Blom 1975-5-16 22 Napa 1 mile north of State Highway 121 on Knoxville Road. Comment
  JEPS126050  Iris fernaldii Jake Ruygt 2002-4-1 4381 Napa West of Calistoga above Blossom Creek. Mark West Springs 7.5' Quad. Comment
  UCD48724  Iris macrosiphon A. Collier; D. Caterson and S. Kenady 2002-5-4 18 Napa Quail Ridge UC Reserve. At northern tip of ridge, N of the intersection of West and East roads. Located in section between upper and lower roads in which the road has become a path. 2 meters E of path. 304 Comment
  UCD71275  Iris macrosiphon Kook-Hyun Chung 2001-4-28 4 Napa Quail Ridge Reserve; SE corner of Lake Berryessa, just W of Monticello Dam; Along West Road, Ca. 0.45 miles(2400ft) NW of jct with South Decker Canyon Road; down slope of road ca. 20 m, shady area in interior live oak woodland; flower cream-yellow, perennial 242 Comment
  UCD82595  Iris macrosiphon Ellen Dean; T. Starbuck 2009-5-4 5534 Napa Ridge above Lake Hennesy and Hwy 128 to the E of the Napa Valley. 426 Comment
  JEPS103966  Isoetes howellii Jake Ruygt 1996-5-19 3708 Napa West of Barnett Road near Burton Creek, (Peju Pr)Pope Valley. 201 Comment
  JEPS116564  Isoetes nuttallii Jake Ruygt 2005-6-7 4908 Napa Ridge top west of Circle Oaks. Capell Valley 7.5' Quad. Comment
  UC14915  Isoetes nuttallii J. P. Tracy 1902-5-19 1553 Napa 3-4 mi e Angwin's (head of Moore's Creek); Howell Mt 518 Comment
  JEPS122672  Juncus bufonius var. bufonius Jake Ruygt 1979-5-15 595 Napa Marina Drive, Napa. Quad: Napa. Comment
  UCD166699  Juncus covillei Jake Ruygt 2010-6-21 5631 Napa Van Ness Creek at north entrance into Bear Valley. 615 Comment
  UC127473  Juncus effusus var. pacificus Harley P. Chandler Sep 7 1906-Sep 14 1906 7103 Napa Alta Loma Ranch Howell Mountain 487 Comment
  JEPS126055  Juncus ensifolius Jake Ruygt 2007-6-2 5218 a Napa Wild Lake, north of Friesen Lakes. Saint Helena 7.5' Quad. Comment
  UC14891  Juncus hemiendytus var. hemiendytus J. P. Tracy 1902-5-18 1534 Napa 3-4 mi e Angwin's (Head of Moores Creek); Howell Mountain, Head of Moores Creek 518 Comment
  JEPS126056  Juncus kelloggii Jake Ruygt 2005-4-30 4802 Napa Skyline Park, Marie Creek Trail. Mount George 7.5' Quad. Comment
  JEPS67097  Juncus occidentalis Willis L. Jepson 1894-5-1 40 a Napa Upper Conn Valley Napa River Basin Comment
  JEPS67098  Juncus occidentalis W. L. Jepson 1891-5-1 40 b Napa Upper Conn Valley Comment
  JEPS75647  Juncus occidentalis W. L. Jepson 1936-6-1 17579 Napa w side Four Corners; Napa Range, Howell Mt. Comment
  UC1103052  Juncus occidentalis J. P. Tracy 1902-5-26 1639 Napa near Calistoga; San Francisco Bay Region, Napa Valley 91 Comment
  UCD73494  Juncus patens Ayzik Solomeshch 2007-5-28 s. n. Napa northwest of the city of Napa. Woolls Ranch, 1032 Mt. Veeder Road. 152 Comment
  UCD166709  Juncus phaeocephalus var. paniculatus Jake Ruygt 1992-5-6 2942 Napa south of Leoma Lakes, Wild Horse Valley Ranch. 411 Comment
  JEPS122668  Juncus xiphioides Jake Ruygt 1996-6-3 3741 Napa Jamieson Vineyards near South Kelly Road. Quad: Cordelia. Comment
  POM14711  Keckiella lemmonii W. L. Jepson 1891-9-13 s.n. Napa Vacaville. Comment
  CDA6289  Kickxia elatine A. Delfino 1963-6-7 Napa G. W. Elicker property, 2297 1st Avenue, Napa. 0 Comment
  POM222621  Kickxia elatine H. P. Bracelin 1931-12-5 575 Napa Conn Creek, Napa Valley. Comment
  UCD85728  Koeleria macrantha Beecher Crampton 1953-5-19 1307 Napa 10 miles west of Monticello, along Highway 128. Comment
  UCD85738  Koeleria macrantha Beecher Crampton 1956-5-25 3474 Napa Southeastern Capell Valley. Comment
  CAS-BOT-BC499196  Kopsiopsis strobilacea Eva Holmes 1929-5-27 s.n. Napa Napa Comment
  CAS-BOT-BC499633  Kopsiopsis strobilacea Elizabeth Wright 1921-5-1 s.n. Napa Calistoga Comment
  CAS-BOT-BC340516  Lactuca serriola Lise Thomsen 1988-8-23 s.n. Napa 1.8 mi. west of intersection of Hwy 29 & Redwood Rd. Comment
  JEPS106649  Lagophylla minor Jake Ruygt 1981-5-21 1042 Napa Putah Dreek north of Snell Valley 231 Comment
  SEINET10672295 Image available Lagophylla minor David D. Keck 1933-5-29 Keck 2338 Napa Bridge over Pope Creek, just south of Walters Spring. On serpentine outcrop and also on hard-baked abobe. Associates: Hordeum Gussoneanum, Linanthus dichotomus, Madia gracilis, Gilia capitata, Festuca reflexa, etc. The large golden-yellow rays closing by 10 A.M. Comment
  JEPS106650  Lagophylla ramosissima Jake Ruygt 1987-5-19 1974 Napa 2.2 miles east of Atlas Peak Rd. on Monticello Road 237 Comment
  UCD133620  Lagophylla ramosissima K. Esau; E. Hyde 1938-5-25 s.n. Napa exact location unknown. Comment
  UCD133621  Lagophylla ramosissima K. Esau; E. Hyde 1938-5-25 s.n. Napa exact location unknown. Comment
  UCD81811  Lamarckia aurea Ellen Dean; Stephen Rae 2009-4-21 5438 Napa Property on the SE slope of Mt. St. Helena. 3860 Hwy 29. 297 Comment
  UC483305  Lamium amplexicaule Ira L. Wiggins 1932-3-12 5749 Napa 1 mi n Calistoga Comment
  CAS-BOT-BC338267  Lasthenia californica John Thomas Howell 1926-3-27 1761 Napa Myrtledale Hot Springs near Calistoga Comment
  CAS-BOT-BC338271  Lasthenia californica Peter H. Raven 1950-5-6 2020 Napa Near Old Faithful Geyser n. of Calistoga 182 Comment
  RSA10701  Lasthenia californica C. B. Wolf 1928-5-3 1786 Napa 5 miles north of Calistoga, Mt. St. Helena Grade. Comment
  JEPS10012  Lasthenia californica subsp. californica Willis L. Jepson 1893-1 Napa 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
  JEPS35406  Lasthenia glaberrima W. L. Jepson 1923-6-3 9974 Napa s of Calistoga Comment
  JEPS35411  Lasthenia glabrata subsp. glabrata W. L. Jepson 1915-4-23 6260 Napa Conn Valley Comment
  UC496104  Lathyrus aphaca Mrs. Ernest Lloyd 1931-5-5 Napa Howell Mountain Comment
  UCD13298  Lathyrus aphaca Stephanie Perez 1974-4-6 s.n. Napa Napa CO. Bickford residence, Ink Grade, 5 miles north of Angwin. Elevation 3000 feet. 914 Comment
  RSA633346  Lathyrus aphaca Michael A. Vincent, Ethan H. Freid, Karl Vincent 1998-4-7 8169 Napa Northwest of St. Helena along Rt. 128. Comment
  JEPS107271 Image available Lathyrus hirsutus Jake Ruygt 1980-5-24 901 Napa end of pavement, Kortum Canyon Rd. 246 Comment
  JEPS107273  Lathyrus hirsutus Jake Ruygt 1996-7-13 3773 Napa Angwin, near Sanitation ponds. 481 Comment
  UCD73500  Lathyrus hirsutus Ayzik Solomeshch 2007-5-30 s. n. Napa northwest of the city of Napa. Woolls Ranch, 1032 Mt. Veeder Road. 152 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
  CDA11433  Lathyrus torreyi G. F. Hrusa, M. Tu 1995-5-6 12156 Napa North Coast Biodiversity Arena; along Moores Creek in Las Posadas State Forest. Comment
  JEPS107266  Lathyrus torreyi Jake Ruygt 1994-4-9 3346 Napa Las Posados Sate Forest on Moore Creek Trail. 487 Comment
  UCSB3115  Lathyrus vestitus Keator, Glenn 1959-4-1 Napa 0.4 miles northwest of Napa County line on Highway 128 Comment
  POM277785  Lathyrus vestitus subsp. vestitus Lyman Benson 1930-3-31 2021 Napa Calistoga 915 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
  CAS-BOT-BC323197  Layia chrysanthemoides J. Clausen 1935-5-22 1068 Napa 2.2 mi. S of Knoxville Comment
  POM53342  Layia chrysanthemoides C. F. Baker 1903-4-19 1098 Napa Calistoga. Comment
  JEPS106617  Layia gaillardioides Jake Ruygt 1980-4-22 858 Napa .7 miles NW of Knoxville on Berryessa-Knoxville Rd. 457 Comment
  UCD160043  Layia platyglossa Catherine Koehler 2012-4-2 s.n. Napa McLaughlin UC Reserve. WSW of Knoxville Mine site, along Knoxville-Berryessa Road. North side of road. 464 Comment
  UCD63159  Layia septentrionalis Jake Ruygt 1980-4-13 834 Napa North of Snell Valley over ridge. 256 Comment
  UCD161693  Layia septentrionalis Jake Ruygt 2010-5-6 5542 Napa Snell Valley / Missimer Preserve, southeast drainage area. 213 Comment
  JEPS122751  Leontodon saxatilis subsp. saxatilis Jake Ruygt 2011-6-18 5802 Napa Silverado Trail, 0.3 mi north of Pope Street, St. Helena. Quad: St. Helena. Comment
  CAS-BOT-BC215774  Lepechinia calycina Milo S. Baker 1926-5-1 221 Napa 2 mi. S.e. of Inn, Mt. St. Helena Comment
  JEPS110793  Lepechinia calycina Jake Ruygt 1989-6-3 2362 Napa about 1 mile south of Monticello Dam on Vaca Mtns. 402 Comment
  UC1124476  Lepechinia calycina A. Lewis 1932-5-19 102 Napa Sarco Creek 182 Comment
  UCD19935  Lepechinia calycina E. A. Dean; J Bradford, K. Mawdsley, and L Wynholds 2001-7-13 793 Napa Quail Ridge Reserve. Slough on N side of Decker Bay trail, in a dried inlet of Lake Beryessa. 128 Comment
  JEPS126117  Lepidium campestre Jake Ruygt 1992-5-23 2997 Napa Buckeye Lane, 0.3 mile north of White Cottage Lane, Angwin. Saint Helena 7.5' Qua. Comment
  UCD74399  Lepidium didymum Jake Ruygt 1990-5-16 2545 Napa Marina Drive, Napa. 3 Comment
  JEPS115756  Lepidium latifolium Lowell Ahart 2009-10-27 16482 Napa Below the high water line of Lake Berryessa, about 150 yards southeast of Eticuera Creek, about 250 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 130 Comment
  JEPS106788  Lepidium latipes var. latipes Jake Ruygt 1981-4-18 981 Napa Harris Canyon 365 Comment
  CAS-BOT-BC226536  Leptosiphon acicularis Peter H. Raven 1951-4-8 2766 Napa Yountville to Rutherford 76 Comment
  UCD149632  Leptosiphon androsaceus Ayzik Solomeshch; Stephen P. Rae 2008-4-20 s.n. Napa Lake Berryessa, along the west shoreline, ca. 2 km north of Pope Canyon Road intersection with Berryessa-Knoxville Road. 140 Comment
  POM204476  Leptosiphon androsaceus J. T. Howell 1933-5-21 11314 Napa Hills east of Napa. Comment
  RSA155422  Leptosiphon androsaceus L. S. Rose 1961-3-30 61025 Napa 1 mile N of Conn Reservoir, Lake Henessy. 152 Comment
  UCD118591  Leptosiphon androsaceus Lewis S. Rose 1961-3-30 61025 Napa 1 mile north of Conn Reservoir, Lake Hennessy. 152 Comment
  UCD13133  Leptosiphon androsaceus Etienne and Laurie Oleksiewicz 1981-4-22 19 Napa Napa CO. State Highway 128, 1.8 miles west of Monticello Dam; west facing slope. Comment
  UCD167232  Leptosiphon ciliatus Jake Ruygt 2000-5-6 4239 Napa Jericho Canyon, Lawley Toll Road. 320 Comment
  UCD82052  Leptosiphon jepsonii Robin McMaster 1972-4-22 67 Napa Pope Valley. Comment
  UCD48066  Leptosiphon parviflorus A. Hufton; S. Burgess, J. Pierner, A. Ryan, and B. Takahashi 2000-4-29 10 Napa Napa County; McLaughlin Reserve, Southwest side of Hunting Creek, on lower reaches of research hill. 655 Comment
  UCD48067  Leptosiphon parviflorus K. Carpenter; S. Cruz, D. Goldberg, M. Ochoa, and K. Watts 2000-4-28 13 Napa Napa County, McLaughlin Reserve, first ridge south of Knoxville Rd., along Devilhead Rd., west side of rd., top of hill, north-facing slope. 533 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
  RSA14531  Lessingia ramulosa Daniel Cleveland 1882-8-23 s.n. Napa Aetna Springs Comment
  UC1287463  Lessingia ramulosa Willard Spence 1962-7-20 719 Napa 2 mi nw Pope Valley (on the road to Aetna Springs) Comment
  JEPS20585  Lessingia ramulosa Willis L. Jepson 1901-8-6 1732 A Napa Howell Mountain Napa River Basin Comment
  SEINET7075535  Lewisia rediviva 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
  JEPS43232  Lewisia rediviva Pearl Lutzi May 1916 Napa High Rocks on the road to Oat Hill Mine; Calistoga Comment
  JEPS32124  Lilaea scilloides Willis L. Jepson 1893-4-26 14598 Napa near Yountville; Napa River Basin Comment
  UCD82054  Limnanthes douglasii Robin McMaster 1972-4-25 80 Napa Pope Valley. Comment
  JEPS19610  Limnanthes douglasii W. L. Jepson 1924-4-6 10326 Napa Napa 15 Comment
  UC971805  Limnanthes douglasii Annetta Carter 1942-4-19 1668 Napa meadow 2 mi s Staggs Leap Comment
  UC17909  Limnanthes douglasii subsp. nivea Willis L. Jepson 1896-4-26 Napa Oakville Napa River Basin Comment
  SEINET6670525  Limnanthes douglasii subsp. nivea M. J. Williams 1967-5-7 s.n. Napa Pope Valley 198 Comment
  UC1277987  Linanthus acicularis B. Crampton 1957-6-4 4093 Napa n end Capell Valley (above Capell Creek); , Capell Creek 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
  JEPS111000  Linanthus bicolor Jake Ruygt 1976-4-23 16 Napa 1.9 miles NE of Silverado Trail on Deer Park Rd. 188 Comment
  UC23460  Linanthus ciliatus W. L. Jepson 1893-5-9 Napa w of Rutherford Comment
  JEPS58393  Linanthus dichotomus Mrs. Mary Van E. Ferguson 1919-4-13 Napa near Atlas Mt. Comment
  UC1198535  Linanthus dichotomus J. P. Tracy 1902-5-19 1559 Napa 3-4 mi e Angwin's; Howell Mountain, Head of Moores Creek 365 Comment
  UCR115094  Linanthus dichotomus G. Fred Hrusa, S. Larson 1995-4-10 12057 Napa 0.25 mi. below bridge over Pope Creek, on Pope Canyon Rd 175 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
  SEINET7075539  Linanthus grandiflorus 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
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Jul 19 2018
  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
  CDA40092  Linanthus parviflorus T. C. Fuller 1958-5-1 3720 Napa Highway 53, 3.5 miles north of Calistoga. 0 Comment
  RSA0062955  Linanthus parviflorus H. P. Bracelin 1930-3-29 s.n. Napa NW flanks of Mt. George. Comment
  UC23783  Linanthus parviflorus Willis L. Jepson 1893-4-24 Napa e of St. Helena; Napa River Basin Comment
  UC402909  Linanthus parviflorus Mrs. H. P. Bracelin 1930-3-29 Napa nw flanks Mt. George Comment
  CAS-BOT-BC430627  Lithophragma affine E. Ruckert 1928-5-3 101 Napa 6495 Dry creek Road, upper meadow southwest of road leading in from county road 411 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
  UCD73395  Lithophragma heterophyllum 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
  JEPS33574  Logfia gallica W. L. Jepson 1944-5-21 27525 Napa fields 7 mi n Napa (e side of Napa Valley); Napa Valley Comment
  CAS-BOT-BC342436  Logfia gallica Peter H. Raven 1950-4-15 1724 Napa Monticello Road, Napa Valley 24 Comment
  UCD48427  Lomatium californicum K. Mogel; B. Pekin, and M. Higley 2002-5-4 9 Napa Quail Ridge UC Reserve. At northern tip of ridge, N of the jct of West and East roads; ca. 1000 ft along the lower road that leads to the power lines; immediately downslope of road. 304 Comment
  CDA38343  Lomatium californicum B. E. Eaton 1972-4-5 s.n. Napa Calistoga. 0 Comment
  UCR45089  Lomatium dasycarpum L. F. LaPre 1985-4-25 s.n. Napa Inner North Coast Ranges, 'Rare Plant Canyon,' 2 mi SW of Knoxville, just east of Lake Co. Line 367 Comment
  UCD127626  Lomatium dasycarpum Robert E. Preston 1987-6-18 564 Napa around 1/2 mile east of Round Corral, Big Basin. 182 Comment
  UC1123025  Lomatium dasycarpum subsp. dasycarpum B. O. Schreiber 1938-4-24 2503 Napa 1/2 mi NW of Knoxville 609 Comment
  UC176029  Lomatium dasycarpum subsp. dasycarpum H. P. Chandler 1907-5-12 7568 Napa St. Helena, White Sulphur Spring Comment
  JEPS14279 Image available Lomatium dasycarpum var. decorum W. L. Jepson 1896-6-2 14303 Napa Conn Valley Ridge Napa River Basin; Conn Valley Ridge, Napa Valley Basin Comment
  JEPS122753  Lomatium hooveri Jake Ruygt 2004-4-3 4579 Napa Ridge between Foley and Knoxville Creeks. Quad: Knoxville. Comment
  UC1137629  Lomatium hooveri B. O. Schreiber 1938-4-24 2501 Napa 1/2 mi. n.w. Knoxville; Reiff Quad. Comment
  UC1563884  Lomatium hooveri Barbara Ertter with Annetta Carter 1989-5-28 8507 Napa Near Knoxville (2 mi. s.e. of Lake Co. line on Berryessa Rd., hills s. of rd.); extreme n. Napa Co. 609 Comment
  UCD18026  Lomatium hooveri Ellen Dean; with Susan Harrison, Dean Enderlend, Joe Callizo 2000-3-18 573 a 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
  UCD18027  Lomatium hooveri Ellen Dean; with Susan Harrison, Dean Enderlend, Joe Callizo 2000-3-18 573 b 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
  UCD47859  Lomatium hooveri E. Anderson; L. Lina, A. Miles, J. Waggoner, and R. Wenk 2000-4-22 16 Napa Napa County, California. McLaughlin reserve, North of Knoxville-Berryessa Road, South of old town of Knoxville. Collected on east side of dirt road. 390 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
  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
  UC963883  Lomatium marginatum var. purpureum Milo S. Baker 1931-4-2 5126 Napa along road to Middletown seven mi from Pope Valley Store Comment
  JEPS17157  Lomatium marginatum var. purpureum W. L. Jepson 1915-4-23 6266 Napa Chiles Creek hills 274 Comment
  POM264418  Lomatium marginatum var. purpureum J. C. Roos 1939-3-18 302 Napa Snell Valley Comment
  JEPS17528  Lomatium nudicaule Willis L. Jepson 1893-6-24 14316 Napa near Napa City (rd. to Napa Soda Springs, near Senator Miller's); Napa R. Basin Comment
  LA202884  Lomatium repostum Lincoln Constance; J. F. Davidson, W. H. Wagner, Ren Hwa. Shan 1946-5-18 3048 Napa Mount Saint Helena, SE slope of Mount Saint Helena, near the old inn Comment
  POM180785  Lomatium repostum J. T. Howell 1930-7-13 5358 Napa On the edge of the Crater Country Comment
  UCD127712  Lomatium repostum Robert E. Preston 1987-6-13 559 Napa Snell Peak. 365 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
  UCD160296  Lomatium repostum James A. Neilson Jr. 1975-5-17 3193 Napa Robert Louis Stevenson State Park, 2/3 of the way along road to summit of Mt. St. Helena. (Exact location unknown. Elevation and coordinates estimated by label maker.) 1165 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
  SEINET7883499 Image available Lomatium repostum Unknown 1946-1 3048 Napa Southeast slope of Mount Saint Helena near the old inn Comment
  HSC44004  Lomatium utriculatum Robert M. Specht 1977-4-13 659 Napa 524 Comment
  JEPS104475  Lomatium utriculatum Jake Ruygt 1979-4-23 545 Napa 3.4 miles east of Silverado Trail on HWY 128 103 Comment
  UC566817  Lomatium utriculatum H. L. Mason 1926-3-22 2786 Napa from Calistoga to Petrified Forest Comment
  JEPS17560  Lomatium vaginatum W. L. Jepson 1893-5-2 14311 Napa Pope Valley grade from Calistoga; Napa Range Comment
  UCD148801  Lonicera Ellen Dean; Diana Hickson 2014-4-29 8108 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 592 Comment
  CAS-BOT-BC240562  Lonicera hispidula L. S. Rose 1927-5-28 s.n. Napa Napa Comment
  JEPS106724  Lonicera hispidula var. vacillans Jake Ruygt 1979-6-1 663 Napa 1.2 miles west of HWY 29 on Diamond Mtn. Road 195 Comment
  POM46741  Lonicera hispidula var. vacillans W. L. Jepson 1893-9-21 s.n. Napa Napa River Basin, Wooden Valley Grade. Comment
  JEPS12814  Lonicera interrupta W. L. Jepson 1898-1-4 Napa Howell Mt. Comment
  JEPS107215  Lotus crassifolius var. crassifolius Jake Ruygt 1998-5-18 3973 Napa north of Mt. Vaca on ridgeline. 804 Comment
  RSA10665  Lotus micranthus Carl B. Wolf 1928-5-3 1824 Napa 5 miles north of Calistoga, Mt. St. Helena Grade. 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
  SEINET7072526  Lotus parviflorus A. G. Vestal 1963-4-7 s.n. Napa About 2.1 miles north of St. Helena on the Silverado Trail. Coordinate datum: NAD 27. Comment
  JEPS107206  Lotus purshianus var. purshianus Jake Ruygt 1992-5-15 2960 Napa NW of Leoma Lakes, Wild Horse Valley Ranch 420 Comment
  UCR220102  Lotus scoparius var. scoparius Ayzik Solomeshch, Stephen Rae 2007-5-30 s.n. Napa North Coast range, Brend-Morgan property, c. 3 miles northeast of city of Napa 215 Comment
  JEPS107200  Lotus wrangelianus Jake Ruygt 1986-3-22 1663 Napa Vaca Mountains east of Markley Cove 231 Comment
  POM66958  Lotus wrangelianus Marcus E. Jones 1924-4-24 s.n. Napa Napa. Comment
  CAS-BOT-BC198366  Lupinus albifrons C. B. Wolf 1928-2-25 1486 Napa On Mt. St. Helena Grade, 2 miles below Hawkins Mt. Camp Comment
  UCD170209  Lupinus albifrons var. albifrons Daniel Potter; Ninh Khuu, Travis Parker 2015-3-7 748 Napa Knoxville Wildlife Area, above and west of Berryessa-Knoxville Road. 408 Comment
  UCD48964  Lupinus bicolor M. Eng; W. Wong, N. Wannlund, and A. Holman 2002-5-4 1 Napa Quail Ridge UC Reserve, northern top of ridge, alongside lower road leading to power lines, just N of intersection with East and West roads. 335 Comment
  UCD81439  Lupinus bicolor M. Wiesendanger 1927-5-4 s.n. Napa Monticello. 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
  UCD16030  Lupinus bicolor N. K. Strahan; C. Kennedy, L Condon, R. Flannery, C. Hallock 2000-4-22 18 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, 2-3 dm tall, flowers dark purple/blue. Comment
  RSA15124  Lupinus densiflorus var. densiflorus J. T. Howell 1935-5-12 12625 Napa Along Pope Creek near its confluence with Putah Creek. Comment
  UC127048  Lupinus formosus Willis L. Jepson 1893-9-24 Napa Angwin's Meadows, Howell Mt. Napa River Basin Comment
  UC196167  Lupinus formosus C. F. Sonne April 1888 Napa field near Napa Junction Comment
  RSA79064  Lupinus formosus var. formosus E. K. Balls, Lee W. Lenz 1952-5-8 17105 Napa 2.8 miles west from Calistoga, road to Santa Rosa via Petrified Forest. 91 Comment
  HSC2123  Lupinus latifolius C. B. Wolf 1928-5-3 1819 Napa Hawkins Mt. Inn Camp, Mt. St. Helena Grade Comment
  UCSC000394  Lupinus latifolius C. F. Sonne 1895-4-15 s.n. Napa Napa Soda Springs Comment
  RSA10670  Lupinus latifolius subsp. latifolius Carl B. Wolf 1928-5-3 1819 Napa 5 miles north of Calistoga, Mt. St. Helena Grade. Comment
  RSA161243  Lupinus latifolius subsp. latifolius Peter H. Raven 1957-5-5 10781 Napa Hills at western edge of Calistoga. 183 Comment
  SEINET10490794  Lupinus latifolius subsp. latifolius Marcus E. Jones 1924-4-24 Jones UMO 71601 Napa Comment
  JEPS65285  Lupinus latifolius var. latifolius Willis L. Jepson 1893-4-24 26 t Napa hills e St. Helena; Napa River Basin, hills e of St. Helena Comment
  UCD161788  Lupinus microcarpus Jake Ruygt 1998-4-27 3946 Napa Foley Creek Basin, west ridge, east of Berryessa-Knoxville Road. 414 Comment
  UCD47988  Lupinus microcarpus var. densiflorus Jessica Westbrook; M. Disney, S. Ratay, S. Wathen, A. Houser, R. Wolfson 2000-4-22 2 Napa Napa Co, McLaughlin Reserve, Old Knoxville Townsite, 0.10 miles north of Berryessa-Knoxville Rd along Old Knoxville Rd. 396 Comment
  OBI48336  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
  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
  UC577241  Lupinus microcarpus var. densiflorus John Thomas Howell 1935-5-12 12625 Napa along Pope Creek near its confluence with Putah Creek; Pope Creek near its confluence with Putah Creek Comment
  JEPS107216  Lupinus microcarpus var. microcarpus Jake Ruygt 1988-5-29 2195 Napa Cedar Valley 588 Comment
  JEPS65393  Lupinus nanus Willis L. Jepson 1893-4-24 29 t Napa hills e St. Helena to Conn Valley (Napa River Basin); , hills e of St. Helena to Conn Valley Comment
  UCD48962  Lupinus nanus L. Wynholds; S. Du Plessis, B. Erickson, and C. Malleck 2001-4-14 15 Napa SW end of Lake Berryessa, Quail Ridge Reserve, above stream that runs along North Decker Canyon Rd., 50-70 ft. N of stream. 167 Comment
  JEPS85043  Lupinus nanus Larry Heckard, Mary Ashton 1969-5-3 2191 Napa 7 mi ne of Napa (Mead Ranch, off Atlas Peak Road); Mead Ranch 457 Comment
  SEINET7042698 Image available Lupinus nanus A. G. Vestal 1941-5-11 s.n. Napa Along Southern Pacific Rail Road 1 mile south of Saint Helena. Rutherford quadrangle UTM Zone 10, 548193mE, 4259900mN. Comment
  SEINET8056980  Lupinus nanus K. Suhr 1967-3-24 s.n. Napa Steele Park Resort, south shore of Lake Berryessa. Comment
  UCD19869  Lupinus nanus C. H. Lamoureux; J. M. Tucker, J. McCaskill and others 1957-4-7 1196 Napa 3 miles southeast of Calistoga, along Silverado Trail. Comment
  POM66227  Lupinus nanus subsp. nanus Marcus E. Jones 1924-4-24 s.n. Napa Napa. Comment
  CAS-BOT-BC202224  Lupinus sericatus Charles Piper Smith 1947-6-19 47525 Napa Highway 29, Mt. St. Helena (Calistoga, 9.8 miles north) Comment
  CAS-BOT-BC202226  Lupinus sericatus R. Bacigalupi; R. S. Ferris; Ira L. Wiggins 1933-6-2 6666 Napa 3 mi. N. of Pacific Union College (Howell Mt.) on road to Aetna Springs Comment
  JEPS65437  Lupinus sericatus Willis L. Jepson 1893-5-4 14527 Napa near Toll-house (Mt. St. Helena); Napa River Basin, Mt. St. Helena Comment
  UC16013  Lupinus sericatus Willis L. Jepson 1896-2-22 Napa Howell Mt. beyond Angwin's Howell Mt.; Howell Mt. beyond Angwin's Comment
  UC1745944  Lupinus sericatus Annetta M. Carter, Joseph Tracy, Rimo Bacigalupi 1950-5-23 2776 a Napa Headwaters of Moore Creek, Las Posadas State Forest. 3-4 mi. E of Angwin. 518 Comment
  SEINET12165201  Lupinus sericatus F. H. Utech, Knight, W.; Knight, I.; Edwards, S. 1986-1 86 -304 Napa Robert Lewis Stevenson State Park trail to the Pallisades, trailhead on CA 29 near St. Helena Creek 750 Comment
  SEINET10486273  Lupinus subvexus James P. Smith, John O. Sawyer 1970-5-17 Smith, Jr. 3790 Napa 9 mi n of pope valley; digger pine chapparal; serpentine. Comment
  POM66226  Lupinus succulentus Marcus E. Jones 1924-4-24 s.n. Napa Napa. Comment
  UCD109596  Lupinus succulentus J. C. Downey 1955-4-23 s.n. Napa In canyon bottom; 4 miles east of Rutherford. Comment
  UCD47982  Lupinus succulentus A. Miles; E. Anderson, L. Lina, J. Waggoner, R. Wenk 2000-4-22 18 Napa Napa County, California. McLaughlin reserve, North of Knoxville-Berryessa Road, South of old town of Knoxville. Collected on east side of dirt road. 390 Comment
  UCD47984  Lupinus succulentus R. Brush; A. Atamian, C. Owens, S. Olmsted, M. Furuyama 2000-4-29 11 Napa The border of Yolo and Napa counties, McLaughlin Reserve, one as the crow flies mile north of the old town of Knoxville, 300 meters east of old road in burned area (burned Oct 1999). 640 Comment
  POM276523  Lupinus succulentus Lyman D. Benson 1930-3-31 2023 Napa Calistoga. 915 Comment
  UCD167086  Luzula comosa var. comosa Jake Ruygt 2010-4-9 5495 Napa Moore Creek Canyon about 0.1 miles north of parking area. 243 Comment
  JEPS45959  Lythrum hyssopifolia Willis L. Jepson 1893-9-24 14085 Napa Napa River Basin, Howell Mt., Angwin's Meadows Angwin's Meadows; Napa River Basin, Howell Mt., Angwin's Meadows Comment
  CAS-BOT-BC342615  Madia anomala R. Bacigalupi; R. S. Ferris; Ira L. Wiggins 1933-6-2 6671 Napa 6 mi. NE. of Pacific College (Howell Mt.) on road to Aetna Springs Comment
  UCD73449  Madia elegans 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
  JEPS40213  Madia elegans W. L. Jepson 1893-9-23 Napa Upper Napa Valley Comment
  CAS-BOT-BC344444  Madia exigua Peter H. Raven 1950-7-20 2378 Napa Howell Mtn., on nne side road to Pope Valley Comment
  JEPS106547  Madia exigua Jake Ruygt 1980-5-24 899 Napa Kortum Canyon Rd. 243 Comment
  POM231110  Madia exigua Jens Clausen 1935-5-22 1070 Napa Ca. 1 mile east of Chiles Valley Store Comment
  UC173111  Madia exigua Katharine Brandegee Napa road from Toll House to Calistoga Comment
  CAS-BOT-BC343196  Madia gracilis Peter H. Raven 1952-5-26 4037 Napa St. Helena to Howell Mt. 304 Comment
  JEPS129043  Madia gracilis Jake Ruygt 2016-6-5 6272 Napa Amy's Grove, near 5700 Dry Creek Road. Rutherford 7.5' Quad. Comment
  UCD48577  Madia gracilis Lynn Wheeler; Mark Bibbo, Ann Koehmstedt, and Tom Liebmann 2001-4-28 2 Napa Quail Ridge Reserve, SE corner of Lake Berryessa, just W of Monticello Dam. Found downslope of West Rd. ca. 0.45 'as the crow flies' miles (2400 ft.) NW of jct. with S. Decker Canyon Rd. 237 Comment
  CAS-BOT-BC343194  Madia gracilis John Thomas Howell 1933-6-4 11384 Napa Hills east of Napa Comment
  CAS-BOT-BC343207  Madia gracilis Ira L. Wiggins 1949-4-30 12072 Napa Along old toll road between Calistoga and Middletown, about 1.5 miles north-east of Calistoga Comment
  RSA52718  Madia gracilis subsp. gracilis I. L. Wiggins 1949-4-30 12072 Napa Along old toll road between Calistoga and Middletown, about 1.5 mi NE of Calistoga. Comment
  CDA11134  Madia nutans G. F. Hrusa, G. L. Stebbins, H. Townsend 1994-4-25 11824 Napa North Coast Biodiversity Arena; Mt. George. Comment
  LA203824  Madia nutans J. Clausen; 1935-5-23 1072 Napa Howell Mountain, near summit 6.5 mi. N.E. of St. Helena Comment
  RSA128374  Madia nutans P. H. Raven 1950-4-15 1752 Napa Wooden Valley grade above Napa. 457 Comment
  CAS-BOT-BC345050  Madia sativa David D. Keck 1933-11-10 2718 Napa Rutherford, just S. of town Comment
  JEPS106678  Madia sativa Jake Ruygt 1990-5-11 2536 c Napa Green Island Road at first bend 3 Comment
  CAS-BOT-BC345053  Madia sativa H. E. Brown; A. A. Heller 1902-5-24 5683 Napa Napa 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
  JEPS36797  Malacothrix clevelandii W. L. Jepson 1938-5-25 18865 Napa Bell Canyon, Napa Range, Howell Mt. Comment
  CAS-BOT-BC347513  Malacothrix floccifera David D. Keck 1933-5-29 2368 Napa Pope Creek bridge south of Walters Springs Comment
  RSA124771  Malacothrix floccifera John H. Thomas 1955-5-21 5174 Napa Near State Highway No. 128 and Capell Creek, about 12 miles east of St. Helena. 244 Comment
  JEPS122718  Malva nicaeensis Jake Ruygt 1977-5-10 220 Napa Southwest corner of Suscol Avenue and Trancas Street. Quad: Napa Comment
  UC504872  Marah fabacea R. M. Holman 1933-4-12 Napa near Mt. Veeder Comment
  UCD18051  Marah fabacea Ellen Dean; with Susan Harrison, Dean Enderlend, Joe Callizo 2000-3-18 604 Napa Napa County. McLaughlin Reserve. Ca. 0.87 miles as the crow flies NNW of site of old town of Knoxville, east side of road to Clover Valley, along old road that climbs up ridge on E side, N- and NW-facing slopes. 536 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
  POM339533  Marah fabacea F. R. Fosberg 1967-4-1 48412 Napa Hills just south of Lake Berryessa Comment
  UC979351  Marah oregana Roxana S. Ferris 1951-3-26 12420 Napa about 2 mi from Oakville (Oakville-Glen Ellen Road) Comment
  UCD170145  Marah watsonii Daniel Potter; N Khuu, C Donkers, A Yip, M Simon 2015-2-28 731 Napa Knoxville Wildlife Area. 311 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
  JEPS103981  Marsilea vestita subsp. vestita Jake Ruygt 1986-8-23 1909 Napa Lake Hennessey 92 Comment
  UCD18036  Medicago polymorpha Ellen Dean; with Susan Harrison, Dean Enderlend, Joe Callizo 2000-3-18 587 Napa Napa County. McLaughlin Reserve. North of Knoxville -- Berryessa Rd., along road from Knoxville to Clover Valley, just E of site of old town of Knoxville. Near old Osage orange tree by creek. 402 Comment
  UCD48968  Medicago polymorpha E. Gottschalk; C. Brassey and L. Hamamoto 2001-4-28 17 Napa Quail Ridge Reserve, SE corner of Lake Berryessa, just W of Monticello Dam. Along West Rd., 0.45 as the crow flies miles (2400 ft.) NW of jct with South Decker Canyon Rd., on the top of a W-facing slope. 242 Comment
  CAS-BOT-BC269412  Melica californica Peter H. Raven 1951-5-20 2847 Napa Hills w. Oakville 365 Comment
  CAS-BOT-BC269415  Melica californica California Academy of Sciences 1870-5-2 s.n. Napa Oakville Comment
  CDA10875  Melica californica G. F. Hrusa, M. Rejmanek 1993-5-15 10970 Napa University of California, Quail Ridge Reserve betw. Hwy 128 and Lake Berryessa. Comment
  UC53669  Melica californica Willis L. Jepson 1893-1 Napa Napa Valley; Napa River Basin Comment
  SEINET5322427  Melica californica M. Mooney 1982-4-17 452 Napa Stebbins-Cold Canyon Nature Preserve, south of dam at Lake Berryessa 91 Comment
  SEINET196999 Image available Melica californica var. californica W. S. Boyle 1942-4-26 1071 Napa 10 mi N of Napa on Silvarado Trail Rd Comment
  CAS-BOT-BC282164  Melica geyeri W. S. Boyle 1942-4-25 1072 Napa Along the Silverado Trail Rd 7 miles S of Calistoga Comment
  CAS-BOT-BC282166  Melica geyeri J. P. Tracy 1902-5-15 1468 Napa Howell Mountain. Head of Moore's Creek, 3-4 miles E of Angwin's 396 Comment
  SEINET239009 Image available Melica geyeri Beecher Crampton 1967-5-15 7936 Napa Sonoma County Napa County line 4 miles northwest of Calistoga on Hwy 128 Comment
  UC187217  Melica geyeri Joseph P. Tracy 1902-5-15 1468 Napa 3-4 mi e Angwin's (head of Moore's Creek); Howell Mtn 396 Comment
  CAS-BOT-BC264222  Melica torreyana David D. Keck 1931-4-2 1034 Napa Wooden Valley Grade, east side of Napa Range, 8 miles from Napa Comment
  UCD89230  Melica torreyana Beecher Crampton 1958-4-29 4756 Napa Capell Creek, north end of Capell Valley. Comment
  UCSB425  Melica torreyana Kamb, Peter; Chisaki, Francia 1950-4-22 Napa West side of Wooden Valley on California Highway #37 304 Comment
  JEPS65542  Melilotus albus W. L. Jepson 1937-9-29 18569 Napa St. Helena; on road to Sanitorium Comment
  UCD108089  Melilotus indicus Helen K. Sharsmith 1953-6-15 4193 Napa Adjacent to Soda Creek, on road to Rutherford 2 miles west of junction with Monticello road. 213 Comment
  JEPS110791  Melissa officinalis Jake Ruygt 1992-7-10 3080 Napa Yountville Ecological Reserve, Yountville Cross Rd., Napa River 26 Comment
  JEPS112580  Melissa officinalis Jake Ruygt 1979-7-12 749 Napa 1.4 miles SW of HWY 128 on Monticello Rd 243 Comment
  JEPS112576  Mentha Jake Ruygt 1992-8-6 3119 Napa Yountville Ecological Reserve, Yountville Cross Rd. 25 Comment
  JEPS115749  Mentha X piperita Lowell Ahart 2009-10-12 16439 Napa Along Capell Creek south 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 134 Comment
  CDA29750  Mentha pulegium M. K. Beyers, F. Favela, J. McDonnell 2009-8-29 213 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
  CHSC103009  Mentha pulegium Lowell Ahart 2009-10-12 16440 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
  JEPS112575  Mentha pulegium Jake Ruygt 1969-12-31 420 Napa Napa River north of Trancas St. 4 Comment
  UCD20708  Mentha pulegium Mark Bibbo 2002-7-28 78 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
  UC1239690  Mentha spicata Joseph P. Tracy 1899-7-3 403 Napa on hills at head of Moore's Creek Howell Mountain (3-4 mi e of Angwin's); Northern Coast Ranges, Moore's Creek, Howell Mountain 335 Comment
  CAS-BOT-BC428853  Micranthes californica Carl B. Wolf 1928-5-3 1839 Napa Base of Mt. St. Helena Comment
  UCD17973  Micropus amphibolus Ellen Dean; Kate Mawdsley 2001-4-9 692 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
  RSA695590  Micropus californicus var. californicus Keith E. Hoffmaster 1946-4-13 1048 Napa Putah Canyon, Coast Range Comment
  POM41557  Microseris douglasii subsp. douglasii Marcus E. Jones 1924-4-24 s.n. Napa Napa. Comment
  RSA195379  Microseris lindleyi Gilbert Muth 1967-4-16 635 Napa Snell Valley. 183 Comment
  RSA31299  Microseris lindleyi Joseph A. Ewan 1934-4-30 8813 Napa Sarco Creek, 4 miles above Napa. Comment
  POM182735  Microsteris gracilis subsp. gracilis D. D. Keck 1931-4-2 1050 Napa 4 miles S of Monticello, eastern Napa County. Comment
  UC1731236  Mimulus angustatus Dean W. Taylor 1998-6-23 16696 Napa ca. 5 air mi w Aetna Springs (headwaters Swartz Canyon; south flanks Twin Peaks); Mayacamas Mtns, NCoRO, Swartz Canyon, Twin Peaks 716 Comment
  UC26857  Mimulus angustatus Willis L. Jepson 1893-5-8 Napa Angwin's Meadow Napa River Basin, Howell Mt. Comment
  JEPS110614  Mimulus arvensis Jake Ruygt 2000-5-6 4235 Napa Lawley Toll Rd near old log barn. 384 Comment
  UC1196827  Mimulus arvensis J. P. Tracy 1899-6-11 362 Napa 3-4 mi e Angwin's; Howell Mountain, Head of Moore's Creek 365 Comment
  JEPS11341  Mimulus arvensis Willis L. Jepson 1893-4-26 12 m Napa Yountville Napa River Basin Comment
  JEPS11536  Mimulus arvensis W. L. Jepson 1915-4-23 6238 Napa hills e St. Helena 182 Comment
  UCD14919  Mimulus aurantiacus Robert Giorgis 1977-4-17 11 Napa California, Napa Co.; 20 meters northwest of Highway 128, 1 mi. west of Monticello Dam; Comment
  UCD159948  Mimulus aurantiacus 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
  UCD160390  Mimulus aurantiacus Nellie Coffey 1931-3-29 s.n. Napa Chiles Valley. Comment
  UCD48234  Mimulus aurantiacus J. Howard; M. Carson, A. Haselby, P. Mayers 2000-4-29 14 Napa Napa County, McLaughlin Reserve, near Yolo County line, high on hill. 670 Comment
  UCD49287  Mimulus aurantiacus Kook Hyun Chung; M. Hauselt, C. Ineich, and J. Deusterman 2001-4-28 12 Napa Quail Ridge Reserve, SE corner of Lake Berryessa, just W of Monticello Dam; along West Road, N of jct with Decker Canyon Rd.; along roadside. 219 Comment
  RSA0006036  Mimulus bakeri C. F. Baker 1903-4-20 2608 Napa Mt. St. Helena. Comment
  JEPS110748  Mimulus cardinalis Jake Ruygt 1979-6-28 723 Napa Milliken Canyon, south wall 121 Comment
  UC125330  Mimulus congdonii unknown Napa Howell Mountain Comment
  JEPS128874  Mimulus douglasii Jake Ruygt 1999-5-15 4157 b Napa North side of Ritchey Canyon, near Bothe State Park. Calistoga 7.5' Quad. Comment
  UCR24432  Mimulus douglasii John C. Roos 1939-3-18 303 Napa North Coast Range, Snell Valley, [near] Pacific Union College, Angwin 183 Comment
  SEINET12811554  Mimulus guttatus Christopher T. Ivey 2003-1 363 Napa Population occurred along stream margin in the Snell Valley Nature Preserve, 2.2 mi E of Pope Valley Road on Snell Valley Road. 192 Comment
  RSA50066  Mimulus guttatus G. R. Campbell 1948-6-18 656 Napa 5 miles north of Calistoga on road from Middleton. 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
  SEINET7057279  Mimulus guttatus Christopher T. Ivey 2003-11-29 364 Napa Specimen grown in greenhouse from wild-collected seed. Population occured along sream margin feeding Racoon Lagoon at north end of Lake Berryessa, about 4.5 mile north of Pope Canyon Road on Berryessa-Knoxville Road. Comment
  JEPS110587  Mimulus kelloggii Jake Ruygt 1979-4-14 513 Napa Oat Hill Mine Rd., Twin Peaks area 707 Comment
  UCD167999  Mimulus kelloggii James A. Neilson Jr. 1977-4-13 3866 Napa Summit Oat Hill Mine Rd., about 1/2 mile west Twin Peaks, about 1/3 mile north and a liitle west of Sugarloaf Mt. (Exact location unknown, coordinates estimated by label maker.) Comment
  CAS-BOT-BC153780  Mimulus kelloggii Belle Richardson Jackson 1923-5-10 s.n. Napa unspecified Comment
  UCD160767  Mimulus latidens Ellen Dean; D. Potter, D. Hickson, R. Ruygt, C. Donkers 2015-5-2 8637 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
  JEPS18289  Mimulus microphyllus Peter H. Raven 1957-5-5 10754 Napa near Airport; Calistoga 91 Comment
  JEPS110582  Mimulus nasutus Jake Ruygt 1982-4-25 1203 Napa Swartz Canyon 381 Comment
  UC131116  Mimulus nasutus Katharine Brandegee 1909-6-1 Napa Pope Valley grade from Calistoga Comment
  JEPS11352  Mimulus nasutus Willis L. Jepson 1893-5-1 6 m Napa w Calistoga; Napa River Basin Comment
  UC725781  Mimulus nasutus A. A. Heller 1940-4-22 15545 Napa Knight's Valley Comment
Read comments
Jun 25 2013
  HSC81975  Mimulus nudatus Thomas W. Nelson, Jane P. Nelson 1980-5-3 5154 Napa W side of Butts Canyon Rd. at junction with private road 244 Comment
  JEPS101493  Mimulus nudatus Dean W. Taylor 1998-5-20 16445 Napa Butts Canyon, serpentine slopes ca. 0.5 mi E of Butts Canyon Rd from a point 0.6 miles up from mouth 335 Comment
  SFV3393  Mimulus nudatus J. M. Tucker 1965-5-15 3826 Napa Devilhead Road, Cedar Valley. About 4 miles (airline) south, and a little west, of Knoxville. 655 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
  RSA434680  Mimulus pilosus Albert J. Perkins 1924-7-15 s.n. Napa Napa Valley near St. Helena. Comment
  RSA434681  Mimulus pilosus E. S. Spalding 1929-7-4 s.n. Napa Near St. Helena. Comment
  UC1196778  Mimulus pulsiferae J. P. Tracy 1902-5-19 1566 Napa 3-4 mi e Angwin's (in stream bed); Howell Mountain, La Jota Plateau, head of Moore's Creek 518 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
  CAS-BOT-BC174563  Minuartia californica G. DeNevers 1982-3-21 1939 B Napa Along Atlas Peak Road. Napa Range Mt. Comment
  CAS-BOT-BC388755  Minuartia douglasii Alice Eastwood 1915-6-6 4677 Napa Mt. St. Helena Comment
  CAS-BOT-BC388760  Minuartia douglasii David D. Keck 1933-5-29 2346 Napa Pope Creek bridge south of Walters Springs Comment
  JEPS129020  Minuartia douglasii Jake Ruygt 2016-5-7 6234 -B Napa Smittle Creek west side of Lake Berryessa. Chiles Valley 7.5' Quad. Comment
  POM181329  Minuartia douglasii J. T. Howell 1931-4-19 6458 Napa Conn Valley. 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
  CHSC102257  Mollugo verticillata Lowell Ahart 2009-10-27 16499 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
  CHSC102526  Mollugo verticillata Lowell Ahart 2009-10-12 16445 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.F 133 Comment
  JEPS63304  Moluccella laevis H. J. Baade 1926-6-26 Napa Berryessa Valley; Coleman ranch Comment
  UCD169868  Monardella villosa subsp. franciscana Daniel Potter; E. Dean, C. Donkers, D. Hickson, J. Rugyt 2015-5-2 803 Napa Knoxville Wildlife Area. North of upper Nevada Creek. 510 Comment
  UCD160634  Monardella viridis Ellen Dean; Susan Harrison, Sharon Strauss 2015-5-10 8726 Napa Butts Canyon. Along Butts Canyon / Guenoc Road, just NW of Shell Valley Road turnoff. South side of road. 237 Comment
  UCD20755  Monardella viridis M. Bibbo; with E. Dean and K. Mawdsley 2002-8-29 104 Napa McLaughlin UC Reserve. Just S of the reserve on Adam's Ridge Rd. 1.6 road miles E of the jct with Devilhead Rd. 640 Comment
  JEPS110828  Monardella viridis subsp. viridis Jake Ruygt 1979-7-3 733 Napa north of Mt. George on Wild Horse Ranch north access road 408 Comment
  JEPS106887  Monolopia major Jake Ruygt 1982-5-8 1232 Napa American Canyon, north of quarry 176 Comment
  UCD23397  Montia perfoliata Julia Knorr 1977-4-16 5 Napa White and purple flowers. Foothill woodland, N facing slope, full shade. 6.4 miles W from Monticello Dam on Highway 128. Comment
  UCD37368  Muhlenbergia andina Beecher Crampton 1959-8-26 5450 Napa Napa County, north end of Capell Valley, along State Highway 128, above Capell Creek. Comment
  UCR151585  Muhlenbergia andina Beecher Crampton 1959-8-26 5450 Napa N end of Capell Valley, along State Hwy 128, above Capell Creek Comment
  JEPS122677  Muilla maritima Jake Ruygt 1983-4-4 1410 Napa Tubbs Lane at Myrtledale Road, Calistoga. Quad: Calistoga. Comment
  JEPS126049  Najas flexilis Jake Ruygt 2007-7-22 5250 Napa Lake Hennessey at inflow of Conn Creek. Saint Helena 7.5' Quad. Comment
  JEPS126062  Najas guadalupensis Jake Ruygt 2010-8-14 5731 Napa Lake. Steele Canyon Resort. Lake Berryessa 7.5' Quad. Comment
  UC187243  Nassella cernua Joseph P. Tracy 1904-5-23 2096 Napa hills e Calistoga; Northern Coast Ranges 243 Comment
  SBBG116117  Nassella lepida B. Crampton 1956-5-25 3481 Napa Howell Mtn, above SW corner of Wooden Valley Comment
  UCD36951  Nassella lepida Beecher Crampton 1956-5-25 3481 Napa Howell Mountains, above southwest corner of Wooden Valley. Comment
  CAS-BOT-BC260175  Nassella pulchra Peter H. Raven; G. L. Stebbins, Jr. 1953-4-19 5331 Napa Pope Creek E of Samuels Springs 91 Comment
  SEINET201034  Nassella pulchra J. P. Tracy 1902-5-21 1581 Napa Head of Moore's Creek 3-4 miles E of Angwin's. 457 Comment
  SEINET7073049  Nassella pulchra A. G. Vestal 1963-4-7 s.n. Napa Low flat about 2.1 miles north of St. Helena on the Silverado Trail. Coordinate datum: NAD27. Comment
  UC1011036  Nassella pulchra Milo S. Baker 1936-4-8 8171 Napa on Monticello Hwy 5 mi from Napa Comment
  POM215775  Navarretia cotulifolia D. D. Keck 1933-5-29 2350 Napa Just south of Pope Creek Bridge, south of Walter Springs Comment
  JEPS112539  Navarretia divaricata subsp. vividior Jake Ruygt 1982-5-26 1296 Napa S of Robert Louis Stevenson Park toward Palisades 792 Comment
  UC143008  Navarretia heterodoxa Mrs. K. Brandegee 1910-7-28 139 Napa Angwin Comment
  UCD167177  Navarretia heterodoxa Jake Ruygt 1982-6-19 1329 Napa Soda Canyon west of grade. 396 Comment
  RSA176773  Navarretia intertexta D. E. Breedlove 1963-5-29 5045 Napa 8.5 miles S of Pope Valley Comment
  UC908407  Navarretia intertexta Herbert L. Mason 1935-5-30 8329 Napa between Lower Lake and Knoxville mine (Napa-Lake counties) Comment
  UCD36945  Navarretia intertexta subsp. intertexta Beecher Crampton 1956-5-25 3470 Napa Between Wragg Canyon and southeastern Capell Valley. Comment
  UCD167181  Navarretia intertexta subsp. intertexta Jake Ruygt 1987-6-15 2019 Napa Wild Horse Valley Ranch. 502 Comment
  UCD160675  Navarretia jepsonii Ellen Dean; Susan Harrison, Sharon Strauss 2015-5-10 8747 Napa Along Shell Valley Road, east of Butts Canyon. South side of road. Land owned by Napa County Land Trust. Permission granted to collect. 178 Comment
  UCD167140  Navarretia jepsonii Jake Ruygt 2015-5-23 6111 Napa Missimer - Snell Valley Preserve. 178 Comment
  UCD167186  Navarretia leucocephala subsp. bakeri Jake Ruygt 1998-6-16 4038 Napa North of Barnett Road, Pope Valley. 201 Comment
  JEPS112558  Navarretia leucocephala subsp. pauciflora Jake Ruygt 1998-6-8 4016 Napa Mead Ranch, Atlas Peak Road. 487 Comment
  SEINET4673932  Navarretia paradoxinota David Gowen 2010-6-8 s.n. Napa Snell Valley Road, east of Butts Canyon Road in Snell Wildflower Preserve.; 0 Comment
  UCD160778  Navarretia pubescens Ellen Dean; D. Potter, D. Hickson, R. Ruygt, C. Donkers 2015-5-2 8658 Napa Knoxville Wildlife Area. California Dept. of Fish and Wildlife public lands. Vicinity of headwaters of Nevada Creek. NE corner of land parcel. 601 Comment
  UCD170457  Navarretia pubescens Daniel Potter; Ninh Khuu 2016-6-8 886 Napa Knoxville Wildlife Area, above and north of Nevada Creek. 600 Comment
  RSA92795  Navarretia pubescens P. H. Raven 1951-3-26 2879 Napa Butts Canyon . 305 Comment
  UCD48623  Navarretia pubescens Katherine Lahey 1981-5-24 102 Napa Napa Co. 2.2 mi S of junction State Hwy's 128 and 121 on Hwy 128 roadside. 243 Comment
  JEPS110944  Navarretia tagetina Jake Ruygt 1983-6-1 1484 Napa HWY 12 at Sonoma County line 91 Comment
  JEPS70480  Navarretia tagetina Willis L. Jepson 1893-6-26 15027 Napa Howell Mt. Napa River Basin Comment
  RSA73125  Navarretia tagetina M. S. Jussel 1937-5-23 s.n. Napa Palisades. Comment
  JEPS129026  Nemacladus montanus Jake Ruygt 2016-5-7 6241 Napa Smittle Creek west of Lake Berryessa. Chiles Valley 7.5' Quad. Comment
  JEPS5479  Nemacladus montanus W. L. Jepson 1920-5-25 9037 Napa Knoxville Ridge; ne Napa County Comment
  POM248912  Nemophila heterophylla Lincoln Constance 1938-3-27 2035 Napa East slope 5 miles east of Napa, in the Howell Mountains, North Coast Ranges. 457 Comment
  JEPS3116  Nemophila menziesii Mrs. Mary Van E. Ferguson 1919-4-13 Napa near Atlas; near Atlas Comment
  SFV12280  Nemophila menziesii L. Chang 1965-3-19 3 Napa Field besied Dollarhide Road, about 3-4 miles east of Pope Valley. 150 Comment
  UC545848  Nemophila menziesii E. Crum 1936-3-15 1737 Napa Chiles Valley Road 3.2 mi from Pope Valley Store; Chiles Valley Road <nr> Pope Valley Store Comment
  UCD149685  Nemophila menziesii Stephen P. Rae; Ayzik Solomeshch 2006-4-25 s.n. Napa Howell Mountain Plateau, about 1 km west of Angwin. McCrane property. Vineyard conversion. 526 Comment
  UCD23403  Nemophila menziesii Sally Jue 1977-4-16 22 Napa Annual herb, flowers blue with light centers; foothill woodland, gradual east facing grassy slope, full sun. In East Bull Canyon off State Highway 128, 6.4 miles SSW of Monticello Dam. 198 Comment
  UCD159790  Nemophila menziesii var. atomaria James A. Neilson Jr. 1975-4-13 3135 Napa Soda Canyon Road, near outlet of canyon. 60 Comment
  JEPS1878  Nemophila menziesii var. atomaria Willis L. Jepson 1893-4-25 15095 Napa trail to Caux's Cabin Napa River Basin, = Mts. n of St. Helena (Napa River Basin, = Mts. n of St. Helena) Comment
  UCD120239  Nemophila menziesii var. atomaria Charles B. Heiser Jr. 1947-2-18 1880 Napa 14 miles north of Napa. 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
  POM263485  Nemophila menziesii var. menziesii J. C. Roos 1939-3-31 308 Napa Angwin. Howell Mtns. Comment
  RSA10643  Nemophila menziesii var. menziesii Carl B. Wolf 1928-5-3 1847 Napa Summit of Mount St. Helena Grade, N of Calistoga Comment
  CAS-BOT-BC219385  Nemophila parviflora H. P. Chandler 1907-5-14 7569 Napa White Sulphur Springs 150 Comment
  JEPS110869  Nemophila pedunculata Jake Ruygt 1993-4-3 3183 Napa Little Bear Valley 673 Comment
  JEPS2664 Image available Nemophila venosa Mrs. L. A. R. Peckinpah 1898-3-11 Napa near (e of) Yountville; foothills of Napa Range; Napa Range, near Yountville Comment
  SD58155  Nicotiana acuminata var. multiflora Helen-Mar Wheeler 1942-7-17 Napa Conn Valley Comment
  UCD38861  Nicotiana quadrivalvis Beecher Crampton 1962-10-9 6700 Napa 1.25 miles southwest Angwin, Howell Mtn. Road. Conn Creek. Comment
  UCD54563  Nuttallanthus texanus K. Walker; PLB 102 2006-5-13 5 Napa Quail Ridge Reserve, West Ashley Rd. One-half mile northwest of Laurel Creek. 208 Comment
  UCD73399  Nuttallanthus texanus 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
  JEPS44834  Oemleria cerasiformis Willis L. Jepson 1893-5-9 13828 Napa sw of St. Helena (Niebaum's Dam); Napa River Basin Comment
  JEPS15795  Oenanthe sarmentosa Willis L. Jepson 1893-4-24 14228 Napa hills e. St. Helena (to Conn Valley Rd., Howell Mt. Foothills); Napa R. Basin, Howell Mt. Foothills Comment
  JEPS120434  Oenothera glazioviana Jake Ruygt 2009-7-4 5457 Napa Silverado trail north of Pope Street. Comment
  JEPS110572  Orobanche fasciculata Jake Ruygt 1992-5-20 2992 Napa west of Leoma Lakes, Wild Horse Valley Ranch 432 Comment
  UC1125595  Orobanche uniflora subsp. occidentalis Beryl O. Schreiber 1938-4-24 2498 Napa Wooden Valley Grade, 5.2 mi NNE of Napa. Napa 7.5' Quad. Comment
  RSA0059237  Orobanche uniflora subsp. occidentalis John C. Roos 1939-5-6 293 Napa Napa range above Calistoga. Comment
  JEPS60260  Orobanche valida subsp. howellii L. R. Heckard 1969-7-13 2331 Napa Mt. St. Helena; se of lookout, below and s of the radar installation 1219 Comment
  UCD32414  Orthocarpus Beecher Crampton 1950-5-7 569 Napa about 3-4 miles southeast of Yountsville, east side of Napa Valley, along Silverado Trail. Comment
  UC592162  Osmorhiza berteroi H. L. Mason 1926-3-22 2788 Napa between Calistoga to Petrified Forest 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
  UCD160342  Oxalis oregana Nellie Coffey 1931-2-1 s.n. Napa Chiles Valley. Comment
  UCD170286  Packera clevelandii Daniel Potter; Ninh Khuu, Sarah Dohle, Casey Peters 2015-7-18 826 Napa Along Knoxville Devilhead Road, west of Knoxville Wildlife Area. 456 Comment
  CAS-BOT-BC316877  Packera eurycephala var. eurycephala Joseph Andorfer Ewan 1934-4-30 8826 Napa Near Samuels Springs above Monticello on Pope Valley Grade Comment
  UC577240  Packera eurycephala var. eurycephala John Thomas Howell 1935-5-12 12626 Napa 1 mi below Samuels Springs; Pope Creek Comment
  UCD160746  Packera greenei Ellen Dean 2015-5-23 8798 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. 243 Comment
  CAS-BOT-BC316944  Packera greenei Mrs. H. C. Cantelow 1934-5-30 550 Napa Mt. St. Helena Comment
  JEPS122964  Panicum capillare Jake Ruygt 1986-6-18 1825 Napa Imola Ave. southeast of Maxwell bridge, Napa. Quad: Napa. Comment
  SEINET242421 Image available Panicum capillare Beecher Crampton 1968-10-1 8386 Napa UC Ca. 3 miles N of Moskowite Corner on Hwy. 128. Comment
  UC1131609  Panicum capillare B. Schreiber 1936-9-20 2355 Napa 5 mi s Reiff; Reiff 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
  UC1746158  Parvisedum pumilum Annetta M. Carter, Joseph Tracy, Rimo Bacigalupi 1950-5-23 2759 Napa Howell Mtn. Road near Angwin Creek crossing. Comment
  UC571854  Parvisedum pumilum H. L. Mason 1935-5-5 3494 Napa 3 mi s of Napa City Comment
  UCD38860  Paspalum dilatatum Beecher Crampton 1962-10-9 6699 Napa 1.25 miles southwest Angwin, Howell Mtn. Road. Conn Creek. Comment
  UCD123314  Pedicularis densiflora D. C. Finfrock 1950-4-2 17 Napa 7.2 miles from St.Helena on road to Pope Valley. Comment
  UC27314  Pedicularis densiflora Willis L. Jepson 1893-4-25 Napa trail to Leaux's Cabin; Napa River Basin Comment
  UCD36151  Pedicularis densiflora Beecher Crampton 1953-2-26 989 Napa 6 miles east of Monticello, on Highway 128, above Putah Creek. Comment
  UCD47773  Pellaea andromedifolia Ryan Knox; E. McDermott and G. Walden 2002-4-13 6 Napa Napa Co., Mclaughlin Natural Reserve, from old town of Knoxville travel 0.4 miles south, turn west along Berryessa-Knoxville Rd. and continue 0.7 miles. Collected on south side of road, from Knoxville Creek's bank. 432 Comment
  CAS-BOT-BC71380  Pellaea mucronata Alice Eastwood 1922-5-4 11268 Napa Mt. St. Helena Comment
  CAS-BOT-BC71383  Pellaea mucronata John Thomas Howell 1930-3-23 4566 Napa Crater Country near Mt. St. Helena Comment
  JEPS103983  Pellaea mucronata Jake Ruygt 1979-2-22 432 Napa west face of Mt. George 121 Comment
  UCD160780  Pellaea mucronata Ellen Dean; D. Potter, D. Hickson, R. Ruygt, C. Donkers 2015-5-2 8660 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-BC71384  Pellaea mucronata Peter H. Raven 1954-1-22 6387 Napa Soda Springs Canyon just north of the Resort 213 Comment
  HSC43907  Penstemon heterophyllus Robert M. Specht 1977-5-14 894 Napa At junction of Develhead Rd. and Morgan Valley Rd. (Knoxville-Berryessa Rd.) 457 Comment
  UCD124217  Penstemon heterophyllus Alan P. Godlewski 1974-5-3 12 Napa south of Lake Berryessa, 150 yards from Highway 128. Comment
  UCD40894  Penstemon heterophyllus Katherine Countrey 1983-5-29 20 Napa On Berryessa-Knoxville Rd. 3 miles northwest of Knoxville. 304 Comment
  POM204007  Penstemon heterophyllus subsp. heterophyllus M. S. Jussel 1931-4-19 s.n. Napa Pope Valley Comment
  POM182638  Penstemon heterophyllus subsp. heterophyllus D. D. Keck 1931-4-2 1028 Napa Wooden Valley Grade, west side of Napa Range, 5 miles NE of Napa. 200 Comment
  NY601707  Penstemon heterophyllus var. heterophyllus P. H. Raven 1951-6-26 3059 Napa Wooden Valley Grade 304.8 Comment
  CAS-BOT-BC245715  Penstemon newberryi var. sonomensis Belle R. Jackson 1930-6-20 s.n. Napa At the monument, summit of Mt. St. Helena Comment
Read comments
Jan 13 2018
  JEPS104485  Perideridia kelloggii Jake Ruygt 1991-7-24 2799 b Napa Leoma Lakes, Wild Horse Valley Ranch 417 Comment
  UCD170281  Perideridia kelloggii Daniel Potter; Ninh Khuu, Sarah Dohle, Casey Peters 2015-7-18 821 Napa Knoxville Wildlife Area, north of Nevada Creek. 535 Comment
  UCD161739  Perideridia kelloggii Jake Ruygt 1992-7-22 3107 Napa south end of Wooden Valley, Wild Horse Valley Ranch. 179 Comment
  UCD164830  Perideridia oregana Jake Ruygt 2012-6-30 5867 Napa Crystal Flats, west of Putah Creek. 195 Comment
  UCD149604  Persicaria lapathifolia 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
  RSA637565  Petrorhagia dubia Carol Chapman 1978-4-23 20 Napa Hwy 128, 4 miles E of intersection of Hwy 128 and Chiles Pope Valley Road. 488 Comment
  UC917309  Petrorhagia dubia R. L. Smith 1948-5-8 Napa 6 mi N of Aetna Springs, Pope Valley Comment
  UCD98375  Petrorhagia dubia Carol Chapman 1978-4-23 20 Napa Hwy 128, 4 miles east of intersection of Hwy 128 and Chiles Pope Valley Road. 487 Comment
  UCD120303  Phacelia californica John Thomas Howell 1929-6-9 4309 Napa 4 miles from Calistoga on road to Petrified Forest. Comment
  UCR45092  Phacelia corymbosa L. F. LaPre 1985-4-25 s.n. Napa Inner North Coast Ranges, 'Rare Plant Canyon,' 2 mi SW of Knoxville, just east of Lake Co. Line 367 Comment
  JEPS2386  Phacelia distans Mrs. Mary Van E. Ferguson 1919-4-13 Napa near Atlas Mt. Comment
  JEPS2378  Phacelia distans W. L. Jepson 1924-5-8 10412 Napa Pope Creek Comment
  JEPS2346  Phacelia divaricata W. L. Jepson 1893-5-2 21020 Napa Pope Valley grade from Calistoga Napa Valley (that is, in Napa Range e of Calistoga) Comment
  RSA195343  Phacelia divaricata Gilbert Muth 1967-5-17 687 Napa Summit of Oat Hill Road. 671 Comment
  JEPS1969  Phacelia egena Mrs. Mary Van E. Ferguson 1919-4-13 Napa near Atlas Comment
  JEPS78807  Phacelia egena John W. Willoughby 1977-4-27 2268 Napa s side of State Hwy 128 very near Monticello Dam; Vaca Mountains Comment
  RSA10669  Phacelia egena Carl B. Wolf 1928-5-3 1820 Napa 5 miles north of Calistoga, Mt. St. Helena Grade. Comment
  SBBG41206  Phacelia imbricata J. T. Howell 1931-4-3 Napa Pope Crk Cyn, 8 mi from Monticello Comment
  JEPS2167  Phacelia imbricata subsp. imbricata W. L. Jepson 1897-5-2 21049 Napa e St. Helena Comment
  CAS-BOT-BC134012  Phacelia imbricata var. imbricata John H. Thomas 1955-5-21 5153 Napa Along State Highway No. 128, about 4.5 miles south of Monticello. 167 Comment
  CAS-BOT-BC265792  Phalaris aquatica Peter H. Raven 1951-6-24 3025 Napa Brown's Valley to Napa-Sonoma Road 91 Comment
  JEPS85036  Phlox gracilis Larry Heckard and Mary Ashton 1969-5-3 2199 Napa ca 7 mi ne Napa (Mead Ranch, off the Atlas Peak Rd) 457 Comment
  UCD167204  Phlox gracilis Jake Ruygt 1986-3-14 1643 Napa north of Highway 12 near Sonoma county line. 106 Comment
  CAS-BOT-BC134983  Phoradendron bolleanum Peter H. Raven 1951-6-10 s.n. Napa Cratter Region E of Palisades 762 Comment
  UCR80867  Phoradendron densum G. Fred Hrusa 1993-10-3 11427 Napa 2.1 mi SW along Knoxville-Devilhead Rd. from Knoxvlle-Berryessa Rd. 440 Comment
  RSA92800  Phoradendron densum Peter H. Raven 1951-10-28 3959 Napa Knoxville. 457 Comment
  UCSB2829  Physocarpus capitatus Keator, Glenn 1959-3-28 Napa Conn's picnic grounds, Napa range Comment
  RSA602574  Pickeringia montana L. C. Wheeler 1952-8-30 6881 Napa Manganese Ridge: Moore Creek, Howell Mountain. Comment
  JEPS65582  Pickeringia montana var. montana W. L. Jepson 1904-6-3 2439 Napa Howell Mt. Comment
  UC1197437  Pickeringia montana var. montana Joseph P. Tracy 1938-6-5 15833 Napa 3-4 mi Angwin's (on hills at head of Moore's Creek); Northern Coast Ranges, Howell Mountain 365 Comment
  UCD169867  Pickeringia montana var. montana Daniel Potter; Peter Lash 2015-4-26 802 Napa Knoxville Wildlife Area. East of upper Zim Zim drainage. 454 Comment
  JEPS103973  Pilularia americana Jake Ruygt 1990-4-23 2504 Napa Wild Horse Valley Ranch at vernal pool 472 Comment
  SEINET267027  Pinus attenuata Royal D. Suttkus 1967-6-26 67- 30 -4 Napa Clearly Reserves 7.2 mi NW of Pope Valley Comment
  UC182  Pinus ponderosa Davy 1894-10-1 Napa spur of Mt. St. Helena Comment
  JEPS46891  Pinus sabiniana W. L. Jepson 1906-12-29 262 b Napa St. Helena St. Helena (above Sanitarium) Comment
  JEPS46896  Pinus sabiniana W. L. Jepson 1906-12-1 Napa St. Helena Comment
  SEINET3221130 Image available Pinus sabiniana Royal D. Suttkus 1967-6-26 67- 30 -43 Napa Clearly Reserves 7.2 miles NW of Pope Valley. Comment
  UCD47759  Pinus sabiniana R. Wenk; E. Anderson, L. Lina, A. Miles, and J. Waggoner 2000-4-22 10 Napa Napa County, California. Mclaughlin Reserve, first ridge South of Knoxville-Berryessa Road, on Southeast side of Devilhead Road. 515 Comment
  JEPS120416  Piperia transversa Jake Ruygt 2010-6-5 5592 Napa Slopes to south of Snell Valley; Missimer Preserve. Comment
  JEPS60941  Plagiobothrys bracteatus Willis L. Jepson 1893-4-25 21167 Napa sw St. Helena; Napa River Basin, Caux's Knob Comment
  SEINET3895550  Plagiobothrys bracteatus Jake Ruygt 1996-5-13 3667 Napa 0.9 miles south of Pope Canyon Road on Hardin Road. SW side of road in vernal pool.; 0 183 Comment
  UC55913  Plagiobothrys bracteatus J. P. Tracy May 15 1903-May 18 1903 1852 Napa 2 mi below Calistoga (Napa Valley); Napa Valley 91 Comment
  JEPS129132  Plagiobothrys cognatus Jake Ruygt 2011-5-7 5777 Napa Mill Valley near Angwin; central portion. Saint Helena 7.5' Quad. Comment
  UC526806  Plagiobothrys fulvus Joseph P. Tracy 1933-4-30 12089 Napa 5 mi e Angwin's (in hills at head of Moore's Creek); Howell Mountain 365 Comment
  UCD74377  Plagiobothrys fulvus var. campestris Jake Ruygt 1983-4-8 1413 Napa South side of Hwy. 12 at Sonoma Co. line. 88 Comment
  JEPS106767  Plagiobothrys greenei Jake Ruygt 1980-4-22 837 Napa .5 miles west of Pope Valley Rd. on Barnett Rd. 201 Comment
  UC650503  Plagiobothrys nothofulvus Ira L. Wiggins 1928-3-24 2865 Napa above Calistoga (grade onold road to Lake Co.) Comment
  UCD148755  Plagiobothrys nothofulvus Jake Ruygt 2002-4-1 4375 Napa Napa County; Blue Ridge north of Mays Flat. 716 Comment
  UCD48654  Plagiobothrys nothofulvus M. Eng; W. Wong, N. Wannlund, A. Holman 2002-5-4 24 Napa Quail Ridge UC Reserve, northern tip of peninsula. 243 Comment
  UCD120926  Plagiobothrys nothofulvus J. M. Tucker; C. H. Lamoureux and June McCaskill 1957-4-7 3290 Napa Beside 'Silverado Trail', ca. 7.5 miles north of St. Helena, east side of Napa Valley. Comment
  UCD74376  Plagiobothrys nothofulvus Jake Ruygt 1983-3-26 1393 Napa 0.5 mile south of Sage Canyon Rd. on Silverado Trail. 76 Comment
  UC192203  Plagiobothrys stipitatus C. F. Sonne Apr 1887 Napa Napa Junction Comment
  CAS-BOT-BC228492  Plagiobothrys strictus Peter H. Raven 1950-5-6 2024 Napa Near Old Faithful Geyser N of Calistoga 182 Comment
  CAS-BOT-BC228495  Plagiobothrys strictus Alice Eastwood 1900-5-7 s.n. Napa Calistoga Comment
  JEPS106762  Plagiobothrys strictus Jake Ruygt 1996-4-11 3589 Napa Calistoga Airport 105 Comment
  POM63424  Plagiobothrys strictus Joseph P. Tracy 1903-5-15 1857 Napa Calistoga Hot Springs 91 Comment
  JEPS68124  Plagiobothrys tenellus Mrs. D. O. Hunt 1909-4-8 Napa St. Helena Comment
  UCD161344  Plagiobothrys tener Jake Ruygt 1986-4-14 1703 Napa 4.5 miles north of Westgate Drive on Atlas Peak Road. (Coordinates estimated by label maker at UC Davis). 446 Comment
  UCD74384  Plagiobothrys tener var. tener Jake Ruygt 1990-8-14 2475 Napa Leoma Lakes, Wild Horse Valley Ranch. 414 Comment
  JEPS110789  Plantago coronopus Jake Ruygt 1993-5-11 3260 Napa Milton Road north of the railroad tracks 0 Comment
  HSC81864  Plantago elongata Thomas W. Nelson, Jane Nelson 1980-5-3 5148 Napa Along Butts Canyon Rd. N of Pope Valley 274 Comment
  JEPS37918  Plantago elongata John Thomas Howell 1934-3-25 11780 Napa Cuttings Wharf Napa River Comment
  UC540405  Plantago erecta Ira L. Wiggins 1928-3-24 2867 Napa above Calistoga (grade on old road to Lake Co.) Comment
  UCD118542  Plantago erecta Roxanne Faure; 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
  UCD148811  Plantago erecta Ellen Dean; Diana Hickson 2014-4-29 8118 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 579 Comment
  CHSC102283  Plantago major Lowell Ahart 2009-10-27 16490 Napa Below the high water line of Lake Berryessa, about 400 yards east of Eticuera Creek, about 300 yards east of Eticuera Parking Area at the northeast end of the causeway, on the south side of Berryessa Knoxville Road, on the bottom of an unnamed creek, about 20 miles (air) northwest of Winters. 130 Comment
  CAS-BOT-BC91870  Platystemon californicus John Thomas Howell 1926-3-20 1691 Napa Near Calistoga. Comment
  CAS-BOT-BC91874  Platystemon californicus H. L. Mason 1926-3-22 2793 Napa Between Calistoga and Petrified Forest. Comment
  UC650434  Plectritis ciliosa subsp. ciliosa Ira L. Wiggins 1928-3-24 2868 Napa above Calistoga (on old road to Lake County) Comment
  RSA261550  Plectritis congesta J. McGrath 1963-3-8 3 Napa Lake Berryessa, 5 miles above Montcello Dam, off State Hwy 128. Comment
  JEPS110895  Plectritis macrocera Jake Ruygt 1979-5-20 613 Napa 1.6 miles north of White Cottage Rd. on Summit Street 694 Comment
  JEPS110896  Plectritis macrocera Jake Ruygt 1980-4-22 855 Napa Devilshead Rd. at Berryessa-Knoxville Rd 457 Comment
  JEPS6143  Plectritis macrocera Bacigalupi and Dempster 1954-5-10 4446 Napa Highway 128 between Chiles Valley and Monticello Valley; Highway 128 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
  UC936193  Pleuropogon californicus H. L. Mason 1931-4-12 5833 Napa grounds s of Napa State Hospital Comment
  UCD90143  Pleuropogon californicus var. californicus Beecher Crampton 1962-5-8 6417 Napa 2 miles north of Calistoga, Myrtledale Hot Springs. Comment
  CAS-BOT-BC260956  Pleuropogon californicus var. californicus Mabel Wiesendanger 1928-4-5 870 Napa Field opposite geyser, Calistoga Comment
  CAS-BOT-BC244370  Poa annua Peter H. Raven 1950-4-15 1705 Napa Along streets, Napa 9 Comment
  UCD149703  Poa bulbosa Stephen P. Rae; Ayzik Solomeshch 2006-4-18 s.n. Napa Northeast of St.Helena, along Sanitarium Road, east of intersection with Glass Mountain Road, vineyard conversion. Partridge Vineyard property. 95 Comment
  RSA113786  Poa howellii Beecher Crampton 1956-5-25 3461 Napa east slope of Wragg Canyon, Vaca Mountains Comment
  UCD148605  Poa kelloggii G. F. Hrusa; G. L. Stebbins 1994-4-18 11782 -A Napa along upper Swartz Creek north tributary. 213 Comment
  CAS-BOT-BC246848  Poa napensis Peter H. Raven 1957-5-5 10737 Napa Field near the hot springs at the airport, Calistoga Comment
  UCD37942  Poa napensis Beecher Crampton 1962-5-8 6418 Napa Napa County, 2 miles north of Calistoga, Myrtledale Hot Springs. Comment
  UCD91552  Poa napensis Beecher Crampton 1965-5-13 7338 Napa 2 miles north of Calistoga, Myrtledale Hot Springs area. Comment
  UCD91554  Poa napensis R. Tofsrud 1948-5-1 s.n. Napa Calistoga. Comment
  UCD18085  Poa secunda Ellen Dean; with PLB 102 class 2000-4-22 641 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
  CAS-BOT-BC242897  Poa secunda subsp. secunda Peter H. Raven 1950-4-15 1719 Napa Silverado Trail outside of Napa 15 Comment
  JEPS122927  Poa secunda subsp. secunda Jake Ruygt 1991-5-25 2698 Napa Paradise Valley. Quad: Jericho Valley. Comment
  JEPS76089  Poa secunda subsp. secunda W. L. Jepson 1938-5-24 18844 Napa plateau n of Four Corners (Howell Mt); Napa Range 762 Comment
  UCD90839  Poa secunda subsp. secunda Beecher Crampton 1965-5-13 7333 Napa 11 miles E of Rutherford, State Hwy. 128. Comment
  UCD92024  Poa secunda subsp. secunda E. W. Taylor 1932-4-1 s.n. Napa Entrance to Napa county traffic officers country club. 274 Comment
  SDSU22047  Pogogyne douglasii Ellen Dean, Jake Ruygt 2015-5-23 8760 Napa McLaughlin UC Reserve on the N side of Knoxville-Berryessa Road, west of the old town of Knoxville site. 416 Comment
  RSA424574  Pogogyne douglasii E. S. Spalding 1924-7-7 s.n. Napa Near Calistoga. Comment
  JEPS122744  Pogogyne serpylloides Jake Ruygt 2011-5-7 5780 Napa Mill Valley near Angwin; central portion. Quad: St. Helena. Comment
  UCD98413  Polycarpon tetraphyllum Freed W. Hoffman 1946-8-20 1855 Napa Conn Reservoir. Comment
  UC1537006  Polygala californica Gordon H. True Jr. 1937-6-21 742 Napa near Lokoya Lodge 365 Comment
  UCD109707  Polygala californica D. Sanchez-Mata 1996-6-22 s.n. Napa Capell Valley. Capell Creek. 350 Comment
  UCD21553  Polygala californica A. Lee; Ellen Dean, Mark Bibbo, Burak Petin 2003-4-26 7 Napa California, Napa County, on Bureau of Land Management land S of McLaughlin Reserve. West of Devil Head Road, S side of Hunting Creek, S of Hunting Creek campground, along trail west of pool at confluence of Sensitive Plant Canyon and Hunting Creek, in forest by stream that crosses trail. 320 Comment
  RSA114988  Polygala californica E. K. Balls, Lee W. Lenz 1955-5-17 20764 Napa 7.6 miles south of Lake-Napa county line along State Highway 20, Middletown to Calistoga 442 Comment
  RSA292917  Polygala californica Reino Alava 1957-5-30 987 Napa 4.2 miles (four and 2 tenths of a mile) north of the junction of Highways 37 and 128, on State Highway 128. Comment
  JEPS51315  Polygonum aviculare subsp. aviculare W. L. Jepson 1893-6-26 Napa Howell Mt. Napa Range Comment
  UC523515  Polygonum bolanderi David D. Keck 1933-11-10 2721 Napa 1 mi n Yountville Comment
  UCD99863  Polygonum bolanderi Walter R. Russell 1963-11-5 s.n. Napa ca. 2 miles south of Napa State Hospital, State Highway 12-29. Comment
  POM192997  Polygonum californicum H. P. Bracelin 118 Napa 1 mile of Etua Springs Comment
  JEPS112594  Polygonum lapathifolium Jake Ruygt 1991-8-24 2832 Napa Napa River at Bale Lane 80 Comment
  UC614935  Polygonum lapathifolium Beryl O. Schreiber 1936-8-16 2324 Napa 0.8 mi s Yountville 152 Comment
  UC1198080  Polygonum lapathifolium Joseph P. Tracy 1905-7-3 2204 Napa near Calistoga; Northern Coast Ranges, Napa Valley Comment
  CAS-BOT-BC420986  Polygonum spergulariiforme R. F. Hoover 1966-8-23 9920 Napa East side of Mt. St. Helena Comment
  CAS-BOT-BC72053  Polypodium calirhiza Betty H. Johnson 1958-6-20 276 Napa above old toll road ca. 1/2 mile above Mt. Mill House, 6.4 miles SW of Middletown Comment
  CAS-BOT-BC72054  Polypodium calirhiza Peter H. Raven 1953-4-2 5293 Napa Tulucay Creek 243 Comment
  HSC26626  Polypogon interruptus J. P. Smith, J. O. Sawyer 1970-5-17 3776 Napa 3 mi. S of Pope Valley Comment
  SBBG128694  Polypogon interruptus L. Ahart 2009-10-12 16466 Napa below high water line of Lake Berryessa, along Capell Crk E of Rest Area, 3/4 mi NE of Hwy 128 on Berryessa Knoxville Rd, 3/4 mi SW of Capell Cove Launch Ramp on Berryessa Knoxville Rd, ca. 19 mi (air) W of Winters 133 Comment
  CDA34667  Polypogon monspeliensis L. Ahart 2009-10-12 16465 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
  JEPS75639  Polypogon monspeliensis W. L. Jepson 1936-5-30 17557 Napa Napa Valley Rutherford; Napa Valley Comment
  UC1242055  Polystichum californicum Don Branscomb 1959-2-2 Napa between Calistoga and Napa (Mill Creek Canyon); Mill Creek Canyon Comment
  JEPS20256  Populus fremontii subsp. fremontii W. L. Jepson 1942-11-1 20748 Napa Conn Valley; Napa Range, Conn Valley Comment
  UCD164807  Populus trichocarpa Jake Ruygt 1998-6-13 4021 Napa Milliken Creek south of Foss Valley. 405 Comment
  JEPS113961  Prosartes hookeri Jake Ruygt 1996-4-6 3534 Napa Along southeast drainage entering Rector Reservoir. Yountville 7.5' Quad. Comment
  CAS-BOT-BC508641  Prosartes hookeri Ira L. Wiggins 1949-4-30 12088 Napa On eastern flank of Mount St. Helena 914 Comment
  UCD166659  Prosartes hookeri Jake Ruygt 1990-4-4 2459 Napa Skyline Park on Lake Marie trail, 1/4 [mile] from lake. 201 Comment
  JEPS62485  Prunella vulgaris W. L. Jepson 1923-6-3 9975 Napa e Yountville (Napa Valley, near base of hills); Napa Valley 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
  UC1198769  Prunus emarginata J. P. Tracy 1902-5-18 1530 Napa 3-4 mi e of Angwin's (head of Moore's Creek, Howell Mountain); Howell Mountain, Moore's Creek 518 Comment
  CAS-BOT-BC151176  Prunus subcordata W. L. Jepson 1891-6-1 s.n. Napa In the Vaca Mts. Comment
  JEPS44963  Prunus subcordata W. L. Jepson 1917-8-16 7434 Napa Howell Mountain 182 Comment
  POM262889  Prunus subcordata J. C. Roos 1939-3-31 307 Napa Angwin. Howell Mtns. Comment
  UC1128467  Prunus virginiana var. demissa B. Schreiber 1936-5-3 2205 Napa .3 mi wsw of Petrified Forest 274 Comment
Read comments
Jun 12 2012
  UCD19309  Pseudognaphalium californicum M. A. Bibbo; E. Dean 2001-7-6 1 Napa Quail Ridge Reserve. SE corner of Lake Berryessa, just W of Monticello Dam. Along West road, between research station and junction with southern part of Frank's road, ca. 0.4 air miles from research station. E (upslope) side of the road. 365 Comment
  JEPS20447  Pseudognaphalium californicum Willis L. Jepson 1893-6-24 14741 Napa Napa River Basin, Howell Mountain Howell Mountain; Napa River Basin, Howell Mountain Comment
  JEPS106909  Pseudognaphalium luteoalbum Jake Ruygt 1987-7-23 2079 Napa Willis Dr., Napa 15 Comment
  JEPS84600  Pseudognaphalium luteoalbum John W. Willoughby 1979-5-25 4298 Napa 1 mi s Signal Hill (below stock pond); Vaca Mountains, Pansy Flats 609 Comment
  UC127187  Pseudognaphalium thermale Harley P. Chandler Sep 7 1906-Sep 14 1906 7108 Napa Alta Loma Ranch Howell Mountain 487 Comment
  CAS-BOT-BC80149  Pseudotsuga menziesii Ira L. Wiggins 1928-3-24 2863 Napa Grade on old road to Lake Co. above Calistoga Comment
  CAS-BOT-BC80150  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 609 Comment
  CAS-BOT-BC80153  Pseudotsuga menziesii Peter H. Raven 1951-8-19 3852 Napa near Lokoya 487 Comment
  SEINET3221129 Image available Pseudotsuga menziesii Royal D. Suttkus 1967-6-26 67- 30 -14 Napa Clearly Reserves, 7.2 miles NW of Pope Valley. 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
Read comments
Oct 2 2012
  UC35749  Psilocarphus tenellus Willis L. Jepson 1893-6-26 Napa Howell Mt. Napa River Basin Comment
  UCD49170  Pterostegia drymarioides M. Eng; W. Wong, N. Wannlund, and A. Holman 2002-5-4 23 Napa Quail Ridge UC Reserve, northern tip of peninsula directly beneath power lines along road. 274 Comment
  CDA11153  Quercus X chasei G. F. Hrusa, G. L. Stebbins, J. Callizo 1993-12-3 11564 Napa North Coast Biodiversity Arena; N side of Mt. George, 10 m. NE of city of Napa, above Sarco Creek. Comment
  JEPS77932  Quercus X morehus Edward Lee 1935-12-1 1677 Napa ca 1 mi se Wooden Valley (on Wooden Valley-Monticello Road (3.5 mi s of junction), valley of the w fork of Suisun Creek) Comment
  UCSB64094  Quercus X townei Tucker, John; Stebbins, G. 1950-11-5 Napa Beside road up Howell Mountain, 5.6 mi. north of St. Helena Comment
  HSC83359  Quercus agrifolia W. C. Overton 1980-7-13 Napa S bank of Eticuera Creek 1.5 mi N of Lake Berryessa 177 Comment
  JEPS37373  Quercus agrifolia W. L. Jepson 1930-10-19 15694 Napa Butts Canyon Comment
  UCD118400  Quercus agrifolia Rachael Olliff; Plant Biology 102 Collectors 2012-5-5 6 Napa Las Posadas State Experimental Forest. Northeastern part of property, in Recreation Flat, just south of main meadow. 387 Comment
  UCD148743  Quercus agrifolia var. agrifolia Jake Ruygt 2002-10-23 4467 c Napa Napa County; Mt. Vaca, south side of peak. 835 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
  UCD45147  Quercus alba Bill Davis 1966-9-26 s.n. Napa Veterans' Home Memorial Grove, Napa Co., Cal. (origin: Fredricksburg) Comment
  SBBG111481  Quercus berberidifolia J. M. Tucker, G. L. Stebbins 1950-11-5 2004 Napa 11.5 mi NW of Monticello, beside rd to Pope Valley Comment
  JEPS116527  Quercus chrysolepis Jake Ruygt 1998-6-15 4028 Napa Mount Saint Helena, SW peak. Detert Reservoir 7.5' Quad. Comment
  JEPS2952 Image available Quercus chrysolepis W. L. Jepson 1893-5-4 Napa summit Mt. St. Helena; Napa River Basin; Mt. St. Helena, Napa River Basin Comment
  SACT002631  Quercus chrysolepis John Willoughby 1977-2-1 Napa East side of Mount Vaca, just below summit along road, near stand of Torreya californica, in chaparral. Comment
  UCD63353  Quercus chrysolepis Daniel Sanchez-Mata 2006-6-15 s.n. Napa Lower Chiles Valley Road. Chiles Valley. 160 Comment
  UCD162119  Quercus douglasii Dylan O. Burge 2014-3-15 1497 Napa Mount Saint Helena. 670 Comment
  CLARK-A1528-2918  Quercus douglasii John C. Roos 1939-3-27 280 Napa Angwin Comment
  CAS-BOT-BC79832  Quercus durata John Thomas Howell 1933-8-27 11642 Napa Sage Canyon, Napa range Comment
  CAS-BOT-BC79838  Quercus durata C. Hart Merriam 1907-7-10 s.n. Napa Howell Mt. Comment
  CAS-BOT-BC79843  Quercus durata Walter Knight; Irja Knight 1963-9-15 241 Napa Los Alamos Rd., Santa Rosa Comment
  CAS-BOT-BC79844  Quercus durata M. S. Jussel 1932-4-10 s.n. Napa St. Helena, 10 mi NE Cliff Spring Comment
  CAS-BOT-BC79847  Quercus durata H. E. McMinn 1922-6-8 167 Napa summit of Howell Mt. Comment
  RSA82771  Quercus durata J. M. Tucker 1941-9-20 407 Napa Opposite junction of road from Samuel Springs with Monticello--Pope Valley Road. Comment
  RSA8544  Quercus durata J. T. Howell 1933-8-27 11642 Napa Sage Canyon, Napa Range. Comment
  UCD14826  Quercus durata John M. Tucker; with G. L. Stebbins 1950-11-5 2011 -22 Napa California, Napa Co.; below Conn Valley Dam, Comment
  UCD14827  Quercus durata John M. Tucker; with G. L. Stebbins 1950-11-5 2011 -25 Napa California, Napa Co.; below Conn Valley Dam, Comment
  UCD14836  Quercus durata John M. Tucker 1950-11-12 2014 -12 Napa California, Napa Co.; Highway 28, 7.7 mi. (by road) west of junction with Highway 37; Comment
  UCD14837  Quercus durata John M. Tucker 1950-11-12 2014 -13 Napa California, Napa Co.; Highway 28, 7.7 mi. (by road) west of junction with Highway 37; Comment
  UCD14845  Quercus durata John M. Tucker 1950-11-12 2014 -23 Napa California, Napa Co.; Highway 28, 7.7 mi. (by road) west of junction with Highway 37; Comment
  UCD160803  Quercus durata Ellen Dean; D. Potter, D. Hickson, R. Ruygt, C. Donkers 2015-5-2 8683 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
  UCD45935  Quercus durata D. Sanchez-Mata; P. Rodriguez-Rojo 1996-10-19 s.n. Napa Mac Laughlin UC Natural Reserve. 680 Comment
  UCD45947  Quercus durata G. F. Hrusa; M. Hooper 1995-9-12 12463 Napa Serpentine margin of Lake Hennessey, across from 2nd major canyon upstream from Conn Dam. 100 Comment
  UCD45972  Quercus durata D. Sanchez-Mata; M. G. Barbour 1996-5-12 s.n. Napa Winters-Napa. Capell Valley. Serpentine chaparral in Capell Creek. 250 Comment
  UCD45929  Quercus durata var. durata Thomas Morley 1941-5-11 130 A Napa On north bank of Butts Creek 1/4 mile west of its junction with Putah Creek, Napa County. Elevation 480 feet. 146 Comment
  UCD48033  Quercus durata var. durata E. Anderson; L. Lina, A. Miles, J. Waggoner, and R. Wenk 2000-4-22 6 Napa Napa County, California. McLaughlin Reserve, first ridge South of Knoxville-Berryessa Road, on Southeast side of Devilhead Road. 515 Comment
  UCD83396  Quercus durata var. durata Jake Ruygt 1980-4-22 854 Napa Devilshead Rd. 475 Comment
  JEPS116535  Quercus garryana Jake Ruygt 1984-3-28 1510 Napa West of end of Whitehall Lane. Rutherford 7.5' Quad. Comment
  JEPS116536  Quercus garryana Jake Ruygt 1990-4-7 2461 Napa Lake Hinman. Yountville 7.5' Quad. Comment
  RSA151  Quercus garryana var. garryana J. T. Howell 1927-8-23 684 Napa Chiles Valley, Napa Range. 213 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
  UCD46075  Quercus garryana var. garryana J. M. Tucker 1950-11-5 2009 Napa At summit of ridge marking Sonoma-Napa County line, beside Highway 28, ca. 5 miles northwest of Calistoga, California. Comment
  JEPS46695  Quercus kelloggii W. L. Jepson 1938-10-1 19070 Napa St. Helena Sanitarium Comment
  POM270252  Quercus kelloggii Lyman Benson 1931-2-26 2602 Napa Southern base of Mt. St. Helena, north of Calistoga, Mayacamas mt. range, Napa watershed. 213 Comment
  RSA187425  Quercus kelloggii John H. Thomas 1966-3-22 11533 Napa About 5 miles north of Calistoga as measured along highway 29 on the southeast slope of Mt. St. Helena. 610 Comment
  RSA623982  Quercus kelloggii T. Gertrude Williamson 1924-7-4 346 Napa Canon near S. Helena, Napa Valley. 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
  UCD120920  Quercus kelloggii Ellen Dean; G. Golden, C. Loughran, PLB 102 interns 2012-4-29 7340 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
  UCD14958  Quercus kelloggii John M. Tucker 1976-10-24 4383 Napa California, Napa County: Beside Dry Creek Road, 0.8 mi. east of junction with Wall Road, and 5 mi. (by road) southwest of Oakville. Comment
  UCD46679  Quercus kelloggii K. Esau 1937-4-22 s.n. Napa Monticello-Napa Highway. Comment
  UCD46705  Quercus kelloggii W. L. Jepson 1900-3-8 505 Napa St. Helena, Napa River Basin. Comment
  CAS-BOT-BC62880  Quercus lobata John Thomas Howell 1930-10-19 5608 Napa Pope Valley School, Pope valley Comment
  CAS-BOT-BC62883  Quercus lobata H. E. McMinn 1922-6-8 205 Napa Pope Creek Canyon Comment
  UCD46936  Quercus marilandica Bill Davis 1966-9-26 s.n. Napa Veterans' Home Memorial Grove Napa Co., Calif. Comment
  CAS-BOT-BC104982  Quercus wislizeni Alice Eastwood 1918-5-1 6866 Napa Mt. St. Helena Comment
  CHSC59980  Quercus wislizeni Wm. C. Overton Jr. 1980-7-13 Napa Along a south bank of Eticuera Creek ca. 1-1/2 road miles north of Lake Berryessa. 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). 176 Comment
  UCD149565  Quercus wislizeni G. Ledyard Stebbins 1994-10-5 s.n. Napa Lake Berryessa. 1.2 miles southeast of junction of Route 128 and road to Spanish Flat. Comment
  JEPS106868  Rafinesquia californica Jake Ruygt 1978-5-21 326 Napa 2.2 miles north of Sage Canyon Rd. on Chiles-Pope V.Rd. 134 Comment
  UCD17980  Ranunculus aquatilis Ellen Dean; with Plant Biology 102 class 2001-4-14 705 Napa SE corner of Lake Berryessa, just W of Monticello Dam. Quail Ridge Reserve, Decker Canyon. West side of South Decker Canyon Rd., between junctions with Cutoff Rd. and North Decker Canyon Rd., W of old buildings, in stock pond. 152 Comment
  JEPS110890  Ranunculus aquatilis var. hispidulus Jake Ruygt 1981-4-22 996 Napa Suscol plain near Kaiser Steel (Rocktram 3 Comment
  UC160921  Ranunculus californicus Joseph P. Tracy 1903-5-15 1845 Napa near Calistoga; Northern Coast Ranges, Napa Valley 91 Comment
  UCR12015  Ranunculus californicus Coleta A. Lawler 1964-3-24 19 Napa 7 mi. from Napa; Mt. Veeder Rd. 2 mi north of Jct. Dry Creek Rd Comment
  UC9417  Ranunculus californicus Willis L. Jepson 1893-4-24 Napa hills e St. Helena; Napa River Basin Comment
  RSA114032  Ranunculus californicus var. gratus Peter H. Raven 1957-5-5 10780 Napa Hills at western edge of Calistoga. Comment
  UCD118564  Ranunculus muricatus Kaya MacMillen; Plant Biology 102 Collectors 2012-4-29 5 Napa Las Posadas State Experimental Forest. NE of fire station on south side of undeveloped road, growing at the bottom of dry ditch. 519 Comment
  UCD83671  Ranunculus muricatus Yuan-Chun Han; E. Dean, S. Foutouhi 2010-5-7 6 Napa Along Wooden Valley Road. Lamb Family Vineyards property on east side of the road. 183 Comment
  JEPS77945  Ranunculus occidentalis Edward Lee 1936-3-15 1811 Napa Rutherford-Pope Valley road 10.7 mi out of Rutherford Comment
  SEINET7072527  Ranunculus occidentalis A. G. Vestal 1963-4-7 s.n. Napa About 2.1 miles north of St. Helena on the Silverado Trail. Coordinate datum: NAD 27. Comment
  UCD148829  Ranunculus occidentalis Ellen Dean; Diana Hickson 2014-4-29 8134 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 560 Comment
  UCR242401  Ranunculus occidentalis Ellen Dean, Susan Harrison, Dean Enderlend, Joe Callizo 2000-3-18 600 Napa North Coast Range, McLaughlin Reserve, c. 0.2 miles as the crow flies NNW of site of old town of Knoxville, east side of road to Clover Valley 463 Comment
  UCSB2073  Ranunculus occidentalis Kamb, Peter; Chisaki, Francia 1950-4-22 Napa Hill on west side of Capell Valley, 3.2 miles west of junction of the road with California Highway #37 213 Comment
  POM268385  Ranunculus occidentalis var. eisenii Lyman Benson 1931-2-26 2600 Napa N of Calistoga, Mayacamas Mt. Napa watershed. 549 Comment
  JEPS55062  Ranunculus orthorhynchus var. bloomeri Willis L. Jepson 1893-4-26 Napa Rutherford Napa River Basin Comment
  JEPS48652  Ranunculus orthorhynchus var. bloomeri Elsa Kraeger 1926-4-4 Napa near Soscal (railroad station near Napa) Comment
  UC162818  Ranunculus pusillus Joseph P. Tracy 1902-5-18 1531 Napa La Jota Plateau Northern Coast Region, Howell Mountain (on hills at head of Moore's Creek, 3-4 mi e of Angwin's) 518 Comment
  UCD18037  Raphanus raphanistrum Ellen Dean; with Susan Harrison, Dean Enderlend, Joe Callizo 2000-3-18 588 Napa Napa County. McLaughlin Reserve. North of Knoxville -- Berryessa Rd., along road from Knoxville to Clover Valley, just E of site of old town of Knoxville. Near old Osage orange tree by creek. 402 Comment
  UC2013271  Reseda luteola David Keil with V. L. Holland, L. D. Oyler, G. F. Hrusa, G. L. Stebbins, et al. 1994-6-6 24509 Napa Near east end of Lake Hennessy along Highway 128. Comment
  CAS-BOT-BC427557  Reseda luteola John Thomas Howell 1943-5-11 18067 Napa S. side of Mt. St. Helena Comment
  UCD116487  Reseda luteola Herbert L. Mason 1942-9-29 12558 Napa 2 miles N of Calistoga. Comment
  CDA42397  Rhagadiolus stellatus R. Robison 2014-4-21 s.n. Napa Bale Gristmill State Historic Park. 0 Comment
  UCD135425  Rhagadiolus stellatus T. C. Fuller 1961-6-15 6336 Napa G. A. Wilson Ranch, Dry Creek Road, 2 miles west of Yountville. Comment
  CHSC75009  Rhamnus tomentella D. Sanchez-Mata 1996-6-22 Napa Capell Valley. Serpentine chaparral in Capell Creek. 380 Comment
  CAS-BOT-BC199723  Rhododendron occidentale H. E. McMinn 297 Napa About 6 mi. above Aetna Comment
  CHSC20600  Rhododendron occidentale Robert A. Schlising; Botany 222 1962-5-4 2226 Napa Coast Ranges. 1.5 mi S Lake Co line on Butts Canyon Rd. Comment
  HSC43983  Rhododendron occidentale Robert M. Specht 1977-4-14 665 Napa N of Adams Creek 561 Comment
  SBBG50855  Rhododendron occidentale R. Beaver 1965-5-1 149 Napa 14 mi N of jct of Hwy 121 and 128 Comment
  UC1017696  Rhododendron occidentale Marion Ownbey, Ruth P. Ownbey 1938-7-9 1702 Napa 6 mi ne of Napa Comment
  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
  CDA38891  Rhododendron occidentale A. T. Leiser 1984-9-23 s.n. Napa Butts Canyon Rd. along both sides of Butts Creek. Lake County line to 500' southeast of county line, predominately on southwest bank, a few on northeast bank. 0 Comment
  JEPS58769  Rhododendron occidentale var. occidentale Alice King Jul 1919 Napa Mt. Helena Comment
  UCD116924  Rhus aromatica J. M. Tucker 1951-3-28 2067 Napa Capell Creek, about 6 miles south of Monticello. Comment
  JEPS66270  Rhus trilobata W. L. Jepson 1924-5-8 10411 Napa near mouth of Pope Creek (w side of Berryessa Valley); Berryessa Valley Comment
  JEPS49319  Ribes californicum Willis L. Jepson 1893-5-2 13511 Napa Mts. e Calistoga (Pope Valley grade) Comment
  CAS-BOT-BC92979  Ribes californicum var. californicum Peter H. Raven 1953-2-21 5196 Napa Steel Canyon. 213 Comment
  CAS-BOT-BC168938  Ribes malvaceum Peter H. Raven 1953-2-21 5195 Napa Steel Canyon 213 Comment
  CAS-BOT-BC168939  Ribes malvaceum David D. Keck 1931-4-2 1025 Napa Wooden Valley Grade, west side of Napa Range, 5 miles NE of Napa 170 Comment
  SBBG2766  Ribes malvaceum Milton Workman 1953-3-23 22 Napa Mix Cyn 548 Comment
  UCD33890  Ribes malvaceum Beecher Crampton 1975-2-17 9106 Napa Napa County, 1/2 mile west of Monticello Dam. Comment
  UCD49073  Ribes malvaceum S. Murphy; K. Keck and K. Dyer 2002-5-5 19 Napa Quail Ridge UC Reserve, northern tip of ridge, NE from intersection of West and East roads ca. 500 m, along edge of upper road leading out to power lines and tip parcels. 328 Comment
  UCD19333  Ribes malvaceum var. malvaceum M. A. Bibbo; E. Dean 2001-7-6 25 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. 286 Comment
  CAS-BOT-BC198892  Ribes roezlii var. cruentum Rimo Bacigalupi 1926-3-28 1268 Napa In canyon just below Mt. St. Helena Inn (Mollie Patton's), lower slopes of Mt. St. Helena Comment
  CAS-BOT-BC198895  Ribes roezlii var. cruentum Rimo Bacigalupi 1926-3-28 1268 Napa Patton's Toll House along old road, Mt. St. Helena Comment
  JEPS49457  Ribes roezlii var. cruentum Katharine Brandegee 1909-6-1 Napa summit of Pope Valley Grade from Calistoga; Napa Range, Pope Valley Grade Comment
  CAS-BOT-BC168760  Ribes victoris Clarence R. Quick 1942-4-18 s.n. Napa Mouth of canyon just west of Rutherford, Napa Valley Comment
  JEPS110833  Ribes victoris Jake Ruygt 1980-5-4 876 Napa canyon near Bateman Creek 597 Comment
  JEPS49309  Ribes victoris Alice King July, 1919 Napa Napa Range, Mount St. Helena, Van Ness Ranch Mount St. Helena; Napa Range, , Van Ness Ranch Comment
  UCD102441  Ribes victoris Mary Lou Douglass 1976-4-24 21 Napa 100 yds SW of P.M. 31.37 on Rt 128. Comment
  UCD164831  Ribes victoris Jake Ruygt 2012-5-19 5851 Napa Crystal Flats, west of Putah Creek. 268 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
  UC1535368  Rigiopappus leptocladus Glen Holstein 1977-5-11 Napa 0.2 mi s of intersection with Berryessa-Knoxville Road Highway 128; Capell Valley Comment
  CAS-BOT-BC363051  Rigiopappus leptocladus Beecher Crampton 1972-4-19 8792 Napa North end of Capell Valley Comment
  UC165855  Rigiopappus leptocladus J. P. Tracy 1899-6-13 421 Napa Chamiso ridge Howell Mountain 457 Comment
  UCD69027  Rigiopappus leptocladus P. Rodriguez-Rojo 1997-4-20 Napa Lake Berryessa. Capell Creek. Base of barrens, on serpentine soils. UTM: 10SEN6659 155 Comment
  CAS-BOT-BC340993  Robinia pseudoacacia Alice Eastwood 1915-6-5 s.n. Napa Calistoga Comment
  CAS-BOT-BC74597  Rorippa curvisiliqua Peter H. Raven 1952-6-28 4199 Napa Hennessey Lake. 121 Comment
  JEPS53853  Rorippa curvisiliqua Willis L. Jepson Nov. 1894 13381 Napa river bed near St. Helena; river bed near St. Helena Comment
  CAS-BOT-BC147534  Rosa californica Alice Eastwood 1915-6-5 4645 Napa Calistoga Comment
  CAS-BOT-BC147536  Rosa californica Peter H. Raven 1952-8-26 5146 Napa Railway 3/4 mi. w. of Buchli Sta. 30 Comment
  JEPS110648  Rosa californica Jake Ruygt 2007-5-14 593 Napa NE corner of Trefethen Vineyards, Dry Creek 22 Comment
  UCD73498  Rosa californica Ayzik Solomeshch 2007-5-27 s.n. Napa NW of the city of Napa. Woolls Ranch, 1032 Mt. Veeder Road. 152 Comment
  CAS-BOT-BC148158  Rosa gymnocarpa A. A. Heller 1924-4-12 13838 Napa About 5 miles south of Calistoga Comment
  CAS-BOT-BC148159  Rosa gymnocarpa Alice Eastwood 1922-5-4 11248 Napa Calistoga Comment
  SEINET11910993  Rosa gymnocarpa F. H. Utech, Knight, W.; Knight, I.; Edwards, S. 1986-1 86 -311 Napa Robert Lewis Stevenson State Park trail to the Pallisades, trailhead on CA 29 near St. Helena Creek 770 Comment
  JEPS112570  Rosa rubiginosa Jake Ruygt 1987-5-11 1983 Napa Milliken Creek below Foss Valley 393 Comment
  CAS-BOT-BC148210  Rosa spithamea Peter H. Raven 1951-8-21 3877 Napa Mt. Veeder 792 Comment
  POM275408  Rosa spithamea Lyman D. Benson 1929-9-30 1931 Napa N side Mt. St. Helena. Mayacamas Mtns. Putah Creek watershed. 762 Comment
  RSA73974  Rosa spithamea Milo S. Baker 1947-7-7 11845 Napa Near end of wood road leading S from Mt. St. Helena Inn towards the 'Crater'. 915 Comment
  UCD17683  Rubus armeniacus H. Olmo; T. S. Mallah 1953-4-8 53 77 Napa California. Napa County: 2 miles west of Sage Creek on Highway 128. Comment
  UCD114003  Rubus ursinus Heidi E. M. Dobson 1978-4-8 303 Napa East slope of Mt. Veeder. Comment
  UCD101077  Rumex acetosella M. Wiesendanger 1927-5-4 699 Napa Monticello, Napa Road. Comment
  CHSC102260  Rumex dentatus Lowell Ahart 2009-10-27 16492 Napa Below the high water line of Lake Berryessa, about 50 yards southeast of Eticuera Creek, about 150 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
  JEPS115755  Rumex dentatus Lowell Ahart 2009-10-27 16492 Napa Below the high water line of Lake Berryessa, about 50 yards southeast of Eticuera Creek, about 150 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 130 Comment
  RSA755378  Rumex dentatus L. Ahart 2009-10-27 16492 Napa Below the high water line of Lake Berryessa, about 50 yards southeast of Eticuera Creek, about 150 yards south of Eticuera Parking Area at the northeast end of the causeway, on the south side of Berryessa Knoxville Road., About 20 air miles northwest of Winters. 130 Comment
  CHSC102281  Rumex fueginus Lowell Ahart 2009-10-27 16493 Napa Below the high water line of Lake Berryessa, about 400 yards east of Eticuera Creek, about 300 yards east of Eticuera Parking Area at the northeast end of the causeway, on the south side of Berryessa Knoxville Road, on the bottom of an unnamed creek, about 20 miles (air) northwest of Winters. 130 Comment
  CAS-BOT-BC433758  Rumex pulcher Peter H. Raven 1952-5-31 4099 Napa Yountville 30 Comment
  SEINET9331061  Rupertia physodes Unknown 1953-5-19 1301 Napa Dense stand under oaks, along Hwy 128 about 9 mi E of Rutherford. Comment
  UCD161748  Sagina decumbens subsp. occidentalis Jake Ruygt 1995-4-8 3415 Napa Silverado Trail at Souza Lane, Napa. 12 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
  LA208565  Salix breweri David D. Keck; 1931-4-3 1075 Napa 5 mi. NE of Aetna Springs, along Butts Creek Comment
  UC481207  Salix breweri Ball, Bracelin, Parks and Parks 1931-4-21 25 Napa near junction with St. Helena Creek (about 6 km s of Middletown, about 120 m above creek mouth); Mirabel Creek 420 Comment
  UCD102771  Salix breweri Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-22 s.n. Napa Berryessa-Knoxville Road. Between Moskowite Corner and Spanish Flat. 410 Comment
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Jul 22 2018
  UCD110792  Salix breweri Edward L. Smith 1967-5-7 s.n. Napa 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. 213 Comment
  POM202754  Salix exigua I. L. Wiggins 1932-3-12 5756 Napa N fork of the Napa River. 1 mile N of Calistoga. Comment
  UC146203  Salix exigua var. hindsiana Joseph P. Tracy 1904-5-20 2077 Napa along Napa R. near Rutherford; Northern Coast Ranges 30 Comment
  UC483319  Salix exigua var. hindsiana Ira L. Wiggins 1932-3-12 5756 Napa 1 mi n Calistoga; N. Fork Napa R. Comment
  CAS-BOT-BC108191  Salix hindsiana Paul H. Jr. Arnaud 1978-5-6 s.n. Napa Steele Resort Park, Lake Berryessa 100 Comment
  CAS-BOT-BC108199  Salix hindsiana Peter H. Raven 1951-6-26 3045 Napa Sarco Ck. E of Napa 60 Comment
  JEPS38404  Salix laevigata Willis L. Jepson 1893-4-29 16 s Napa Bewery Rd. York Creek; Napa River Basin Comment
  UC5024  Salix laevigata Willis L. Jepson 1893-5-8 Napa beyond Angwin's Howell Mt. Comment
  CAS-BOT-BC107047  Salix lasiolepis C. R. Ball; Harold E. Parks 1931-2-17 17 a Napa One mile northwest of Calistoga Comment
  UC504073  Salix lasiolepis C. R. Quick and J. A. Vogtmann 1933-3-2 W 2 Napa 10 mi from Monticello (Rutherford to Monticello); Chiles Valley Comment
  UC524082  Salix lasiolepis Ira L. Wiggins 1932-3-12 5752 Napa 1 mi n Calistoga; North Fork of the Napa River Comment
  CAS-BOT-BC124420  Salix lasiolepis var. lasiolepis Ira L. Wiggins 1932-3-12 5751 Napa North fork of the Napa River, 1 mi. N. of the town of Calistoga Comment
  CAS-BOT-BC128201  Salix lucida Rimo Bacigalupi 1924-2-22 s.n. Napa Toll house road Mt. St. Helena on Calistoga sie of Napa County Comment
  SBBG29033  Salix lucida subsp. lasiandra I. L. Wiggins 1932-3-12 5750 Napa N fk of Napa River, 1 mi N of Calistoga Comment
  UCD48054  Salvia columbariae A. Ryan; S. Burgess, A. Hufton, J. Pierner, and B. Takahashi 2000-4-29 16 Napa Yolo Co/Napa Co line; McLaughlin Reserve, 1 mile (as the crow flies) N of old town of Knoxville. 609 Comment
  CAS-BOT-BC225171  Salvia sonomensis Elizabeth Wright 1922-4-1 217 Napa Near Calistoga Comment
  UC634916  Salvia sonomensis H. L. Mason 1926-3-22 2795 Napa from Calistoga to Petrified Forest Comment
  SEINET12323505  Salvia sonomensis W. Knight, Knight, I. 1982-1 4678 Napa Wooden Valley Road Comment
  JEPS104480  Sanicula bipinnata Jake Ruygt 1977-4-3 167 Napa hills east of Lake Berryessa,Green Canyon 228 Comment
  UCD112046  Sanicula crassicaulis Christopher Mallek 2008-5-12 AS2- 6 Napa Aetna Springs. 668 Comment
  UCD117806  Sanicula crassicaulis Eileen Hollett; Plant Biology 102 Collectors 2012-4-29 4 Napa Las Posadas State Experimental Forest. Along dirt road that goes northeast of fire station. In field on south side of road. 519 Comment
  UCD48494  Sanicula crassicaulis Anne Mini; K. McBride, S. Snow, K. Ehmsen 2001-4-14 5 Napa Quail Ridge Reserve, Decker Canyon, along South Decker Canyon Rd., N of jct with Cut Off Rd., S or jct with North Decker Cayon Rd., W side of road. 152 Comment
  UCD83670  Sanicula crassicaulis Yuan-Chun Han; E. Dean, S. Foutouhi 2010-5-7 5 Napa Along Wooden Valley Road. Lamb Family Vineyards property on east side of the road. 178 Comment
  JEPS1735 Image available Sanicula menziesii var. pedata W. L. Jepson 1893-5-1 14189 Napa Calistoga Napa River Basin; Calistoga, Napa River Basin Comment
  JEPS943  Scandix pecten-veneris W. L. Jepson 1922-4-21 9625 Napa Napa Junction Comment
  UCD128072  Scandix pecten-veneris Peter Kamb; Francia Chisaki 1950-4-22 1772 Napa Canyon of Sage Creek about 3 miles east of Chiles Valley. 304 Comment
  UCSB12314  Scandix pecten-veneris Dearing, Hugh; Dearing, Margaret 1939-5-1 Napa Top of Spring Mt.grade, Napa County Comment
  SEINET10333154  Schoenoplectus acutus A. A. Beetle 1940-5-5 1586 Napa One mile north of County Line on road from Vallejo to Napa Comment
  CAS-BOT-BC21128  Schoenoplectus acutus var. occidentalis Peter H. Raven 1952-5-31 4118 Napa 2.5 miles east of Yountville. 60 Comment
  UC683304  Scirpus americanus Alan A. Beetle 1941-7-8 2852 Napa in outwash of geysers at Calistoga (farthest n station for this species); in outwash of geysers at Calistoga Comment
  JEPS121364  Scirpus fluviatilis Jake Ruygt 1991-7-20 2795 Napa 3.2 miles north of Pope Canyon Rd. on Berryessa - Knoxville R. Comment
  JEPS106749  Scleranthus annuus subsp. annuus Jake Ruygt 1993-5-1 3231 Napa Cedar Creek Rd. at Cedar Creek. 548 Comment
  RSA170259  Scribneria bolanderi Joseph P. Tracy 1950-5-23 18674 Napa La Jota Plateau, on hills at head of Moore's Creek, 5 miles east of Angwin's, Howell Mountain. 518 Comment
  UC1103133  Scribneria bolanderi Joseph P. Tracy 1902-5-18 1538 1/2 Napa 3-4 mi e of Angwin's (at head of Moore's Creek, on La Jota Plateau, Howell Mountain); Northern Coast Ranges, Howell Mountain, Moore's Creek 518 Comment
  UC1158116  Scribneria bolanderi Joseph P. Tracy 1950-5-23 18674 Napa 3-4 mi e of Angwins (at head of Moore's Creek, La Jota Plateau, Howell Mountain); Northern Coast Ranges, Howell Mountain, Moore's Creek 518 Comment
  UCD41468  Scrophularia californica Ellen Dean; Deborah Canington 2003-3-1 1365 Napa Napa County. Quail Ridge UC Reserve. Southern end of Lake Berryessa, first peninsula west of Monticello Dam. Along Decker Bay Trail, right along stream. 176 Comment
  OBI9233  Scrophularia californica R. L. Hoover 1968-4-20 52 Napa Howell Mtn Rd, 2.6 mi NE of State Rts 29/128, on E side of rd Comment
  RSA0054926  Scrophularia californica Keith E. Hoffmaster 1946-3-9 1252 Napa Napa-Monticello road. Comment
  RSA491729  Scrophularia californica subsp. floribunda James L. Reveal 1987-6-7 6401 Napa Vaca Mountains, along the Mix Canyon Road, 5 miles west of Pleasant Valley Road, about 7 miles northwest of Vacaville. 762 Comment
  JEPS112643  Scutellaria californica Jake Ruygt 1992-6-11 3029 Napa below South lake, Wild Horse Valley Ranch 426 Comment
  UC205176  Sedum radiatum Katharine Brandegee 1909-6-1 Napa Pope Valley grade Comment
  CAS-BOT-BC63831  Sedum spathulifolium Alice Eastwood 1915-6-6 4692 Napa Mt. St. Helena Comment
  JEPS103971  Selaginella wallacei Jake Ruygt 1994-3-19 3326 Napa Top of the Palisades. 716 Comment
  JEPS37306  Senecio aronicoides Willis L. Jepson 1893-4-28 Napa Wooden Valley grade Napa River Basin Comment
  UCR80866  Senecio clevelandii G. Fred Hrusa 1993-10-3 11425 Napa 2.6 mi SW along Knoxville-Devilhead Rd. from Knoxvllle-Berryessa Rd. 488 Comment
  CAS-BOT-BC364595  Senecio vulgaris Ira L. Wiggins 1928-3-25 2873 Napa 1 1/2 mi. N.E. of Calistoga Comment
  CAS-BOT-BC243632  Setaria pumila Peter H. Raven 1952-9-14 5184 Napa Napa State Game Farm 121 Comment
  CDA2460  Setaria verticillata Steve Bardessono 1958-11-1 1569 -58 Napa Orsoe property, Napa. 0 Comment
  UCD167285  Sidalcea calycosa subsp. calycosa Jake Ruygt 1983-5-1 1452 Napa Suscol Ridge near PG and E substation. 22 Comment
  JEPS50095  Sidalcea diploscypha W. L. Jepson 1938-5-22 18822 Napa Snell Valley Comment
  UCD13152  Sidalcea diploscypha Kathleen Worden 1981-5-26 18 Napa Napa CO. Highway 128, 1 mile west of Knoxville Rd. intersection. Comment
  JEPS50055  Sidalcea hartwegii W. L. Jepson 1897-5-2 14069 Napa near St. Helena; near St. Helena Comment
  UCD170380  Sidalcea keckii Daniel Potter; N Khuu 2016-5-8 877 Napa West of Nevada Creek, west of Knoxville Wildlife Area. 294 Comment
  JEPS110722  Sidalcea malviflora subsp. laciniata Jake Ruygt 1982-3-26 1150 Napa Suscol ridge SE of Rocktram 18 Comment
  JEPS106851  Silene californica Jake Ruygt 1981-5-13 1022 Napa .2 miles east of Flosden Rd. on north side American Canyon 164 Comment
  UCD73436  Silene coniflora 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
  RSA185755  Silene gallica John H. Thomas 1955-5-21 5121 Napa Sarco Creek drainage, near State Hwy No. 37 about 6 miles from Napa 244 Comment
  UC796479  Silene gallica Ira L. Wiggins 1949-4-30 12074 Napa about 1.5 mi ne Calistoga (along old toll road between Calistoga and Middletown); ne of Calistoga Comment
  UCD18134  Silene gallica Jean Shepard; with PLB 102 class 2000-4-29 183 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
  UCD48861  Silene gallica K. L. Wheeler; M. Bibbo, A. Koehmstedt, and T. Liebmann 2001-4-28 5 Napa Quail Ridge Reserve, SE corner of Lake Berryessa just W of Monticello Dam. Down slope of West Rd., ca. 0.45 as the crow flies miles (2400 ft.) NW of jct with South Decker Canyon Rd. Comment
  CAS-BOT-BC389181  Silene laciniata subsp. californica Joseph P. Tracy 1905-7-5 2208 Napa Northern Coast Ranges. Howell Mountain. On hills at head of Moore's Creek, 3-4 miles East of Angwin's 457 Comment
  JEPS106853  Silene multinervia Jake Ruygt 1997-6-22 3867 Napa Bismark Knob 640 Comment
  CAS-BOT-BC364803  Silybum marianum Betty H. Johnson 1958-6-15 643 Napa 1/4th mi. above Mt. Mill House, 6.4 mi S.-W. of Middletown Comment
  CAS-BOT-BC75288  Sisymbrium officinale Elsa G. Ruckert 1960-4-3 65 Napa 6495 Dry Creek Road. West of house. 365 Comment
  UCD63065  Sisymbrium officinale Ellen Dean 2008-4-8 4770 Napa Quail Ridge UC Reserve. South end of Lake Berryessa, first peninsula, west of Monticello Dam. Along Decker Ridge Road, at junction with South Decker Canyon Rd. 342 Comment
  UCD164749  Sisymbrium orientale Jake Ruygt 2014-5-30 5966 Napa Atlas Peak Road about 4.5 miles north of Monticello Road. 454 Comment
  UCD138849  Sisyrinchium bellum M. Wiesendanger 1927-5-4 685 Napa Near Monticello. Comment
  UCD170815  Sisyrinchium bellum 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), in meadow on the west side of Maxwell Creek. 166 Comment
  UCD18175  Sisyrinchium bellum 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
  UCD35481  Sisyrinchium bellum Beecher Crampton 1957-4-15 3929 Napa Napa County; Vaca Mtns., Markley Canyon. Comment
  UCD48728  Sisyrinchium bellum L. Wynholds; S. Du Plessis, B. Erickson, and C. Malleck 2001-4-14 18 Napa SW end of Lake Berryessa, Quail Ridge Reserve, along North Decker Canyon Rd., 20-30 ft. N of stream. 152 Comment
  UCD48732  Sisyrinchium bellum E. Gottschalk; C. Brassey and L. Hamamoto 2001-4-28 18 Napa Quail Ridge Reserve: SE corner of Lake Berryessa, just W of Monticello Dam. Along Decker Bay Trail, 1/4 mi. from jct with West Rd. 152 Comment
  UCD48734  Sisyrinchium bellum Kook-Hyun Chung; M. Hauselt, C. Ineich, and J. Deusterman 2001-4-28 7 Napa Quail Ridge Reserve; SE corner of Lake Berryessa, just W of Monticello Dam; along West Road, ca. 0.45 mi (2400 ft.) 'as the crow flies' NW of jct with South Decker Canyon Rd.; downslope of West Rd. ca. 20 m. 242 Comment
  UCD48738  Sisyrinchium bellum S. Murphy; K. Keck and K. Dyer 2002-5-5 17 Napa Quail Ridge UC Reserve, northern tip of ridge, along N edge of upper road leading to power lines, NE from intersection of West and East roads ca. 20 m. 328 Comment
  SEINET4171053  Sisyrinchium bellum Unknown 1963-4-27 Napa State Hwy 128, .5 mile S. of Lake Berryessa. 396 Comment
  SEINET4171055  Sisyrinchium bellum Unknown 1967-5-1 Napa 13.4 miles W. of Winters on State Hwy 128 137 Comment
  JEPS113975  Smilax californica Jake Ruygt 1990-4-30 2474 Napa Napa River about 1/4 mile north of Trancas Street. Napa 7.5' Quad. Comment
  CHSC102304  Solanum americanum Lowell Ahart 2009-10-12 16456 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
  JEPS110918  Solanum rostratum Jake Ruygt 1984-6-30 1579 Napa Pope Valley Middle Rd. 195 Comment
  UC1301158  Solanum umbelliferum Helen K. Sharsmith 1963-3-17 5214 Napa s side of Mount Atlas Mount Atlas; San Francisco Bay Region, Mount Atlas 609 Comment
  UC26280  Solanum umbelliferum H. P. Chandler 1900-5-7 Napa Rutherford Comment
  CAS-BOT-BC156678  Solanum umbelliferum H. E. McMinn 1922-6-7 195 Napa Howell Mt. Comment
  OBI9134  Solanum umbelliferum R. L. Hoover 1968-4-11 21 Napa 1 block W of hwy 1 on Palm Ave, Marina Comment
  UC1280958  Solanum umbelliferum H. E. McMinn 1922-6-7 195 Napa on summit of Howell Mountain Howell Mountain Comment
  UC614509  Solanum umbelliferum L. Constance 1938-3-27 2039 Napa 5 mi e of Napa (e slope in the Howell Mountains); North Coast Ranges, Howell Mountains 457 Comment
  SEINET3149130  Solidago californica H. P. Chandler 1906-9-7 7117 Napa Alta Loma Ranch, Howell Mtn. 549 Comment
  CAS-BOT-BC365098  Solidago velutina subsp. californica L. S. Rose 1927-7-24 s.n. Napa St. Helena Comment
  CDA29133  Sonchus asper D. G. Kelch, Daniel Weinstein 2009-6-21 9 .447 Napa Near Skyline Park. Comment
  JEPS120415  Spartium junceum Jake Ruygt 2010-6-19 5613 Napa 200 yds west of Hunting Creek along Putah Creek. Comment
  JEPS120393  Spergularia bocconi Jake Ruygt 1987-5-17 2004 Napa John F. Kennedy Park Comment
  CAS-BOT-BC390297  Spergularia macrotheca var. longistyla Milo S. Baker 1927-5-1 2111 a Napa Calistoga Geyser Comment
  CAS-BOT-BC390308  Spergularia macrotheca var. macrotheca John Thomas Howell 1932-10-8 10803 Napa Napa River levee at Cuttings Wharf Comment
  CAS-BOT-BC390565  Spergularia rubra A. A. Heller; H. E. Brown 1902-4-25 6364 Napa Near Napa Comment
  JEPS128908  Spiranthes porrifolia Jake Ruygt 1996-6-23 3756 Napa Wontrup Wildlife Sanctuary, Hardin Road, Pope Valley. Saint Helena 7.5' Quad. Comment
  JEPS64519  Spiranthes porrifolia W. L. Jepson 1936-7-3 17632 Napa Four Corners Napa Range, Howell Mt. Comment
  UCD166675  Stachys ajugoides Jake Ruygt 1982-6-21 1339 Napa Suscol plain, just east of steel mill, Rocktram. 2 Comment
  JEPS63068  Stachys ajugoides var. rigida Willis L. Jepson 1893-4-24 14982 Napa hills e St. Helena (to head of Conn Valley); Napa River Basin Comment
  UC648281  Stachys albens Alice Eastwood, John Thomas Howell 1939-8-20 7617 Napa Capell Creek Comment
  UCD83669  Stachys rigida var. quercetorum Yuan-Chun Han; E. Dean, S. Foutouhi 2010-5-7 4 Napa Along Wooden Valley Road. Lamb Family Vineyards property on east side of the road. 178 Comment
  UCLA85559  Stachys stebbinsii C. Epling, H. Lewis 1941-5-9 Napa 11.1 mi s St. Helena Comment
  JEPS112632  Stachys stricta Jake Ruygt 1981-7-8 1062 Napa Bateman Creek 609 Comment
  CAS-BOT-BC386933  Stellaria media Ira L. Wiggins 1928-3-25 2874 Napa Roadside 1 1/2 mi. N.E. of Calistoga Comment
  JEPS106612  Stellaria nitens Jake Ruygt 1996-4-10 3575 Napa Soda Spring, White Cliff Springs 396 Comment
  CAS-BOT-BC393989  Stellaria nitens John Thomas Howell 1931-4-2 6054 Napa Wooden valley Grade 4 miles east of Napa Comment
  UCD159903  Stephanomeria virgata Alice Warrick 2007-4 s.n. Napa Quail Ridge UC Reserve. 2005 Pleasure Fire burn site, along west loop road, north of Decker canyon. 243 Comment
  JEPS126107  Stephanomeria virgata subsp. pleurocarpa Jake Ruygt 1978-8-29 401 Napa 8.3 miles N of Redwood Road on Dry Creek Road. Rutherford 7.5' Qua. Comment
  UCD161262  Stephanomeria virgata subsp. pleurocarpa Jake Ruygt 2005-10-8 4949 Napa Pope Canyon Rd. near high water range of Lake Berryessa (Landucci). (Coordinates estimated by label maker at UC Davis). 164 Comment
  SBBG128109  Stephanomeria virgata subsp. pleurocarpa L. Ahart 2009-10-12 16430 Napa just above high water line of Lake Berryessa, along the W side of Capell Crk N of Rest Area, 3/4 mi NE of Hwy 128 on Berryessa Knoxville Rd, 3/4 mi SW of Capell Cove Launch Ramp on Berryessa Knoxville Rd, ca. 19 mi (air) W of Winters 133 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
  UCD170367  Stipa miliacea var. miliacea Daniel Potter; N Khuu, K Battenberg 2016-4-30 865 Napa Knoxville Wildlife Area, on ridge west of Zim Zim Falls Creek trailhead. Comment
  UCD169880  Stipa pulchra Daniel Potter; N Khuu, C Donkers, A Yip, M Simon 2015-2-28 720 Napa Knoxville Wildlife Area. 307 Comment
  CAS-BOT-BC61248  Streptanthus breweri David D. Keck 1933-5-29 2369 Napa Pope Creek bridge south of Walters Springs. Comment
  CAS-BOT-BC61251  Streptanthus breweri John Thomas Howell 1937-7-18 13101 Napa Mount Saint Helena Creek. North Napa county. Comment
  UC518933  Streptanthus breweri var. breweri David D. Keck 1933-5-29 2369 Napa Pope Creek bridge s Walters Springs (roadbank) Comment
  UC956593  Streptanthus breweri var. hesperidis Freed W. Hoffman 1949-9-3 2998 Napa Conn Dam North Coast Ranges Comment
  UC1292725  Streptanthus breweri var. hesperidis Freed W. Hoffman 1947-8-4 1041 Napa near Detert Reservoir; Napa-Lake County line Comment
  SFV8749  Streptanthus glandulosus P. Warner 1967-4-16 49 Napa North Coast Ranges Vaca Mountains. 0.7 miles above (west) of Monticello Dam, Lake Berryessa. 152 Comment
  UCD33219  Streptanthus glandulosus Beecher Crampton 1967-5-11 7919 Napa Napa County, 4.5 miles east of Rutherford, south slope, Conn Reservoir. Comment
  RSA94058  Streptanthus glandulosus R. C. Barneby 1954-4-30 11335 Napa Conn Valley. near the slipway., 300 [ft? m?] Comment
  SEINET5501528 Image available Streptanthus glandulosus Sally Walker 1983-5-26 Napa e side of Mt St Helena Napa co. Comment
  UCD116018  Streptanthus glandulosus subsp. glandulosus Bill Wengeler 1995-4-30 s.n. Napa 2 miles north of Highway 128 along Knoxville Road. 183 Comment
  UCD170193  Streptanthus glandulosus subsp. glandulosus Daniel Potter 2015-3-14 764 Napa Knoxville Wildlife Area, along Eticuera Creek east of Berryessa-Knoxville Road at the creek crossing just north of the Zim Zim Falls trailhead. 228 Comment
  UCD81180  Streptanthus glandulosus subsp. glandulosus Roger Willmarth; A. Fulks 2009-4-10 s. n. Napa Inner North Coast Range along Napa/Yolo County border. Blue Ridge on the east side of Lake Berryessa, north of Green Canyon. 487 Comment
  UCD170472  Streptanthus morrisonii Daniel Potter; A Holland, D McNair, H Won, K Battenberg 2016-6-23 901 Napa Knoxville Wildlife Area, upper Zim Zim Creek drainage east of Knoxville-Devilhead Road. 477 Comment
  UC939443  Streptanthus morrisonii subsp. elatus Arthur R. Kruckeberg 1947-6-14 1482 Napa outcrop on low saddle 1/4 mi w White's Point (Table Mtn. rd ca 5 mi e of Mountain Mill House) 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
  UCD19319  Symphoricarpos mollis M. A. Bibbo; E. Dean 2001-7-6 11 Napa Quail Ridge Reserve. SE corner of Lake Berryessa, just W of Monticello Dam. Along West rd, ca. 0.8 air miles from jct. with S Decker canyon rd. 20 yards off of the road, up a small dry creek, on N facing slope of drainage. 198 Comment
  CAS-BOT-BC98078  Symphyotrichum lentum Peter H. Raven 1951-6-24 3002 Napa Napa 30 Comment
  JEPS104538  Symphyotrichum lentum Jake Ruygt 1991-11-29 2847 Napa Fagan's Marsh 1 Comment
  UC87074  Symphyotrichum spathulatum T. S. Brandegee 1888-9-1 Napa Howell Mountain Comment
  CHSC106847  Symphyotrichum subulatum var. parviflorum Barbara Ertter; Elizabeth Neese 1988-10-2 7950 Napa Lake Hennessey ca 15 airmiles NNW of Napa, on Conn Creek in North Coast Ranges; below spillway on N side of Rt 128. 91 Comment
  HSC21381  Tamarix parviflora Greg Bos 1963-3-17 42 Napa Delta region, Montezuma Slough. 15 Comment
  JEPS122772  Tamarix parviflora Jake Ruygt 2011-5-7 5772 Napa Pope Canyon Road, Pope Creek, west of arm of Lake Berryessa. Quad: Walter Springs. Comment
  JEPS120336  Taraxia ovata Jake Ruygt 1990-4-1 2452 Napa White Creek, Wild Horse Valley Ranch. Mount George 7.5' Quad. Comment
  UC107641  Taraxia ovata Mrs. K. Curran Sept. 1888 Napa Howell Mountain Comment
  JEPS110689  Tetrapteron graciliflorum Jake Ruygt 1988-5-29 2205 Napa Devilshead Rd. at Berryessa-Knoxville Rd NW corner 457 Comment
  UC9679  Thalictrum fendleri var. polycarpum Willis L. Jepson 1894-5-1 Napa Upper Conn Valley Napa River Basin Comment
  UC9704  Thalictrum fendleri var. polycarpum Willis L. Jepson 1893-5-1 Napa Upper Conn Valley Napa River Basin Comment
  JEPS106595  Thelypodium brachycarpum Jake Ruygt 1982-6-15 1325 Napa Devilshead Rd. area north of Cedar Creek on road to Hunting Cr 387 Comment
  CDA12199  Thermopsis californica var. californica G. F. Hrusa 1989-4-29 6045 Napa North Coast Biodiversity Arena; Chiles Valley Rd., approx. 2 km N of junction of Hwy 128 and Chiles Valley Rd. Comment
  JEPS118639  Thermopsis californica var. californica B. Castro and L. P. Janeway 2002-5-12 1360 Napa Inner North Coast Ranges. Small soggy meadow/springs along Pocock Creek just upstream of the dirt road from Devilhead Road. NE-facing slope ~ 15 ft SE of main channel through springs. Jericho Valley 7.5' quad. 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
  CAS-BOT-BC66514  Thysanocarpus curvipes Saichi Kawahara 1968-4-20 341 Napa 2 miles south of Pope Valley, Pope Valley-Chiles Road. 259 Comment
  CAS-BOT-BC66517  Thysanocarpus curvipes Jim Steele 1980-4-11 44 Napa Pope Valley. Cleary Reserve. 0.25 mile from entrance gate. 365 Comment
  JEPS106590  Thysanocarpus curvipes Jake Ruygt 1992-4-3 2882 Napa Tuteur Ranch, end of Green Valley Rd. 365 Comment
  CAS-BOT-BC66486  Thysanocarpus curvipes John Thomas Howell 1931-4-2 6108 Napa 4 miles from Monticello on Wooden Valley Road, Napa Range. Comment
  CAS-BOT-BC66510  Thysanocarpus curvipes John H. Thomas 1968-4-4 14275 Napa About 2 miles east of Rutherfor along Highway 128. Comment
  JEPS54166  Thysanocarpus curvipes Willis L. Jepson 1893-4-24 30 e Napa e St. Helena; Napa River Basin, e of St. Helena Comment
  SEINET8727857 Image available Thysanocarpus curvipes Laura Zeller 1965-1 33 Napa Ca. 1/2 mile E of Junction of Pope Valley Road and Butts Canyon Road on Butts Canyon Road. Elevation ca. 700 feet. 213 Comment
  RSA122894  Thysanocarpus curvipes var. curvipes B. O. Schreiber 1938-4-24 2496 Napa Wooden Valley Grade, 5.2 miles NNE of Napa 274 Comment
  CDA11318  Tonella tenella G. F. Hrusa, R. Cole, D. Anderson 1995-3-26 12024 Napa UC Quail Ridge Reserve. Immediately below field house. Comment
  SEINET7466299 Image available Tonella tenella J. M. Tucker 1957-1 3287 Napa beside Highway 37, .4 mile southwest of junction with road to Monticello Dam and Winters. Comment
  UCD20003  Torreya californica C. H. Lamoureux; J. M. Tucker and R. Gankin 1957-5-4 1236 Napa 8 miles north of Calistoga on Hwy 29. 1 mile north of crest of Hwy 29 on Mt. St. Helena. 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
  JEPS63912  Toxicodendron diversilobum W. L. Jepson 1939-9-12 19476 Napa w. of St. Helena (York Creek, Spring Mt.); Spring Mt., York Creek 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
  UCD110460  Toxicoscordion Christopher Mallek 2008-1 KX1- 7 -b Napa Knoxville. 593 Comment
  UCD110461  Toxicoscordion Christopher Mallek 2008-1 KX1- 7 -a Napa Knoxville. 593 Comment
  UCD139880  Toxicoscordion venenosum var. venenosum P. B. Kennedy 1929-5-23 s.n. Napa St. Helena highway to Pope Valley. Comment
  UCD83744  Tragopogon porrifolius Ellen Dean; Yuan-chun Han, Surene Foutouhi 2010-5-7 5993 Napa Along Wooden Valley Road; E side of the road; Lamb Vineyard property. 219 Comment
  JEPS112637  Trichostema lanceolatum Jake Ruygt 1969-12-31 3792 Napa Suscol Ridge near PG & E substation. 12 Comment
  JEPS112620  Trichostema oblongum Jake Ruygt 1986-6-14 1818 Napa Craters, behind Palisades 719 Comment
  JEPS108657  Trichostema ruygtii Jake Ruygt 2004-9-4 4656 Napa Las Posadas State Experimental Forest 524 Comment
  JEPS120348  Trichostema ruygtii Jake Ruygt 2004-8-21 4648 Napa Atlas Peak Road about 1/4 mile north of Hardman Ave., near Silverado C. C. Napa 7.5' Quad. Comment
  UCR25326  Trientalis latifolia John C. Roos 1939-4-29 290 Napa North Coast Range, Pacific Union College, Angwin 549 Comment
  UCD148800  Trifolium albopurpureum Ellen Dean; Diana Hickson 2014-4-29 8107 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 513 Comment
  UCD83435  Trifolium albopurpureum Jake Ruygt 2003-5-17 4525 Napa Archer Taylor Preserve. 548 Comment
  UC1602048  Trifolium albopurpureum var. dichotomum Baker 1903-4-20 2625 Napa Mt. St. Helena Comment
  JEPS126124  Trifolium angustifolium Jake Ruygt 2009-5-18 5408 Napa American Canyon Road, near Highway 80; north side of road. Cordelia 7.5' Qua. Comment
  UCD107886  Trifolium bifidum R. Tofsrud 1951-5-26 s.n. Napa Enterprise School. Comment
  UC1197178  Trifolium bifidum var. bifidum J. P. Tracy 1899-6-13 396 Napa 3-4 mi e Angwin's (on hills at head of Moore's Creek); Northern Coast Ranges, Howell Mtn 365 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
  JEPS129098  Trifolium ciliolatum Jake Ruygt 2016-4-30 6218 Napa Smitty Ranch, east side Lake Berryessa. Lake Berryessa 7.5' Quad. Comment
  UCD149693  Trifolium ciliolatum 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
  UCD108358  Trifolium depauperatum var. amplectens D. C. Finfrock 1950-4-6 21 Napa 14 miles from Monticello, Pope Valley. Comment
  UC16483  Trifolium depauperatum var. depauperatum Willis L. Jepson 1893-4-26 Napa La Lomita Comment
  JEPS65837  Trifolium depauperatum var. depauperatum W. L. Jepson 1893-4-28 13738 Napa n Mt. George (plateau) Comment
  JEPS106829  Trifolium depauperatum var. hydrophilum Jake Ruygt 1996-4-11 3593 Napa Calistoga Airport 105 Comment
  UC162802  Trifolium depauperatum var. stenophyllum Joseph P. Tracy 1902-5-18 1541 Napa 3-4 mi e Angwin's (on hills at head of Moore's Creek); Northern Coast Ranges, Howell Mtn 518 Comment
  JEPS100381  Trifolium fucatum Dean W. Taylor 2001-5-15 17654 Napa Cedar Valley (ca. 3 air miles South from Knoxville) 592 Comment
  JEPS106808  Trifolium fucatum Jake Ruygt 1993-4-12 3200 Napa south of James Creek Road and Butts Cany on Road. 213 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
  UC16802  Trifolium fucatum Jepson 1894-4-24 Napa w St. Helena (trail to Cuax's Cabin) Comment
  UC16803  Trifolium fucatum Willis L. Jepson 1893-4-25 Napa trail to Cuax's Cabin Napa River Basin Comment
  SD224979  Trifolium glomeratum A. C. Sanders 1996-6-1 18194 Napa Napa: southeast edge of town at Skyline Park, east end of Imola Road East. Adjacent to meeting hall. 91 Comment
  UCD83446  Trifolium glomeratum Jake Ruygt 1988-4-29 2161 a Napa SE corner of Highway 12 and 29. 22 Comment
  UCD83447  Trifolium gracilentum Jake Ruygt 1998-3-29 3899 Napa Suscol Ridge overlooking Jameson Canyon. 158 Comment
  UCD48019  Trifolium hirtum Ari Houser; J. Westbrook,S. Ratay,M. Disney,R. Wolfson,S. Wathen 2000-4-22 33 Napa Napa Co, McLaughlin Reserve, Old Knoxville Townsite, 0.10 miles north of Berryessa-Knoxville Rd along Old Knoxville Rd. 396 Comment
  CDA38369  Trifolium microcephalum D. G. Kelch 2010-5-6 10 .183 Napa Wooden Valley Road, about 5 km north of Napa/Solano county line, north of Rockville. Comment
  UC74979  Trifolium microcephalum C. F. Baker 1903-4-19 1994 Napa Calistoga Comment
  UC80349  Trifolium microcephalum C. F. Baker 1903-4-19 1994 Napa Calistoga Comment
  UCD111441  Trifolium microcephalum P. Rodriguez-Rojo 1997-4-20 s.n. Napa Lake Berryessa. Capell Creek. 155 Comment
  UCD48015  Trifolium microdon A. Laffin; S. Holck, and A. Randall 2002-4-13 8 Napa Yolo County, McLaughlin UC Reserve, W side of Davis Creek Reservoir, along road that goes from Soda Springs to Rayhouse Rd.; due N of Soda Spring and ca. 1.0 airline mile WNW of UC Davis Aquatic Lab facility. Along S side of running stream where road travels east-west for a short distance. Ca. yds. From the N side of the road. 488 Comment
  UCD109177  Trifolium microdon R. Tofsrud 1951-5-26 s.n. Napa Strut Canyon Road. Comment
  UCD35333  Trifolium obtusiflorum Beecher Crampton 1955-5-16 2795 Napa 8.5 miles west of Winters, just west of the Monticello Dam site. Comment
  UCD111357  Trifolium olivaceum M. Wiesendanger 1926-4-1 1491 Napa location unknown. Comment
  JEPS126078  Trifolium repens Jake Ruygt 1978-9-19 421 Napa Napa River north of Trancas St. Napa 7.5' Quad. Comment
  CDA31301  Trifolium subterraneum D. G. Kelch 2010-5-6 10 .186 Napa Wooden Valley Road, about 5 km north of Napa/Solano county line, north of Rockville. Comment
  JEPS4392  Trifolium variegatum var. variegatum W. L. Jepson 1915-4-23 6235 Napa e St. Helena (hills) Comment
  JEPS106688  Trifolium willdenovii Jake Ruygt 1989-4-8 2251 Napa about 1/2 mile south of Monticello Dam on Vaca Mtns. 377 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
  JEPS4401  Trifolium willdenovii Willis L. Jepson 1893-4-24 13672 Napa e St. Helena (hills, to Conn Valley); Napa River Basin Comment
  UC16759  Trifolium willdenovii H. P. Chandler 1900-4-7 Napa Rutherford Comment
  UCD83425  Trifolium willdenovii Jake Ruygt 2000-5-6 4240 Napa Hwy 128 at Sonoma County line; N of Calistoga. 219 Comment
  CAS-BOT-BC451905  Triglochin maritima John Thomas Howell 1932-10-8 10810 Napa At Cuttings Wharf on Napa River Comment
  UC429263  Trillium albidum unknown Apr. 1897 554 S Napa woods near Napa City Napa City Comment
  JEPS113980  Trillium ovatum subsp. ovatum Jake Ruygt 1997-3-23 3816 Napa Devil's Canyon, about 1/2 mile upstream Taylor picnic area. Sonoma 7.5' Quad. Comment
  JEPS16798  Triphysaria eriantha subsp. eriantha Rimo Bacigalupi with John Dawson 1955-4-25 4846 Napa near junction of Lower Lake road with Calif. Highway 128 in Monticello Valley; field in Monticello Valley 94 Comment
  JEPS3983  Triphysaria pusilla W. L. Jepson 1910-3-28 4027 Napa Rebecca Ranch grade sw Calistoga; sw of Calistoga Comment
  JEPS74863  Triphysaria pusilla T. I. and F. M. Chuang 1975-5-4 7503 Napa on highway 29, 4.2 mi s Napa Comment
  UCD123416  Triphysaria versicolor subsp. faucibarbata Gerald D. Carr; R. F. Denno 1971-5-13 546 Napa 1.5 miles northwest of Pope Valley on Pope Valley Road. Comment
  HSC20861  Triphysaria versicolor subsp. faucibarbata L. D. Thurman 1964-4-18 417 Napa W Imola Ave., 1 mi. W of Hwy. 12 & 29 Comment
  UC1334906  Triphysaria versicolor subsp. faucibarbata L. D. Thurman 1964-4-15 494 Napa on Silvarado trail 5 mi n Napa; on Silverado Trail Comment
  UC183045  Trisetum canescens J. P. Tracy 1902-5-15 1459 Napa 3-4 mi e Angwin's; Howell Mountain, Head of Moore's Creek, Howell Mountain 487 Comment
  UCD73052  Trisetum canescens Ellen Dean; S. Rae 2008-5-21 4971 Napa Hills to the west of Hwy. 29. Private property accessed by Diamond Mountain Road. Canyon runnning east to west. 213 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
  JEPS64207  Triteleia hyacinthina Elizabeth Ferguson 1920-5-15 347 Napa e Howell Mountain (Pope Creek); e of Howell Mountain, Pope Creek Comment
  UCD102761  Triteleia laxa Daniel Sanchez-Mata; M. P. Rodriguez-Rojo 2002-4-22 s.n. Napa Berryessa-Knoxville Road. Between Moskowite Corner and Spanish Flat. 180 Comment
  UCD139409  Triteleia laxa R. L. Smith 1948-5-8 s.n. Napa 6 miles north of Aetna Springs, Pope Valley. Comment
  UCD159928  Triteleia laxa 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
  UCD48796  Triteleia laxa Kook-Hyun Chung 2001-4-28 1 Napa Quail Ridge Reserve; SE corner of Lake Berryessa, just W of Monticello Dam; Along West Rd., ca. 0.45 mi (2400 ft.) NW of jct with South Decker Canyon Rd.; down slope of West Road ca. 1 m. 242 Comment
  CAS-BOT-BC526511  Triteleia laxa Elsa G. Ruckert 1960-5-20 157 Napa 6495 Dry Creek Road 365 Comment
  UC422833  Triteleia laxa H. P. Chandler 1907-5-8 7564 Napa White Sulphur Spr. St. Helena Comment
  UCD132723  Ulmus minor Ramona Robison 2012-4-26 s.n. Napa Bale Grist Mill State Historic Park. Growing near Grist Mill. 106 Comment
  SBBG2307  Umbellularia californica var. californica Milton Workman 1953-3-7 8 Napa Portuguese Cyn, Putah Crk Rd Comment
  CAS-BOT-BC381964  Uropappus lindleyi J. Clausen 1935-5-23 1072 m Napa Howell Mountain, near summit, 6.5 mi. N. of St. Helena Comment
  JEPS106872  Uropappus lindleyi Jake Ruygt 1979-5-16 602 Napa 5.8 miles east of Monticello Rd. on HWY 128 304 Comment
  UCD170805  Uropappus lindleyi 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. 135 Comment
  JEPS43438 Image available Urtica dioica subsp. holosericea Willis L. Jepson 1893-9-24 Napa Angwin's Meadows Napa River Basin Comment
  CAS-BOT-BC404186  Urtica dioica subsp. holosericea Dennis W. Woodland 1969-8-6 1312 Napa 100 yards south of junction and bridge of Pratt Ave. and Silverado Drive; 1 mile east of St. Helena and highway 29; 1/2 mile south of Anguin Road Comment
  UC27680  Verbascum thapsus Mrs. D. O. Hunt Nov., 1898 Napa St. Helena Comment
  JEPS110577  Veronica americana Jake Ruygt 1986-8-2 1891 Napa .5 mile east of . Kelly Rd. , Fagan's Creek 28 Comment
  UC917283  Veronica persica M. R. Wanzer 1948-5-22 27 Napa 12.5 mi w of Winters (Putah Creek Canyon); Putah Creek Canyon Comment
  UCD83429  Vicia americana subsp. americana Jake Ruygt 1991-5-11 2655 Napa 1 mi N of College Ave. on Howell Mountain Rd. 551 Comment
  JEPS106542  Vicia americana var. americana Jake Ruygt 1979-4-23 549 Napa .4 miles east of Howell Mtn. Rd. on Chiles and Pope V.Rd. 207 Comment
  RSA195308  Vicia sativa Gilbert Muth 1967-4-28 652 Napa Spring Mountain Road, St. Helena. Comment
  SEINET7042499  Vicia sativa A. G. Vestal 1963-4-7 s.n. Napa 3.8 miles north of Saint Helena on the Silverado Trail. Saint Helena quadrangle UTM Zone 10, 544281mE, 4266677mN. Comment
  UCD49040  Vicia sativa subsp. nigra L. Wynholds; S. Du Plessis, B. Erickson, and C. Malleck 2001-4-14 4 Napa SW end of Lake Berryessa, Quail Ridge Reserve, along stream that runs along the East side of South Decker Canyon Rd. S of North Decker Canyon Rd. and N of the Cut-Off Rd. 152 Comment
  UCD108922  Vicia sativa subsp. nigra David Lawfer 1952-3-29 142 Napa Napa. Comment
  UCD109152  Vicia villosa subsp. varia Helen K. Sharsmith 1963-4-20 5351 Napa East side Napa Range on Monticello Road above Wooden Valley. 243 Comment
  JEPS129143  Vinca major Jake Ruygt 1979-3-29 462 Napa Dry Creek, northeast corner Trefethen Vineyard. Napa 7.5' Quad. Comment
  UCD15014  Viola douglasii Craig Homar 1977-4-8 7 Napa Along Berryessa-Knoxville Road, 34 miles west of Winters. Comment
  RSA44295  Viola lobata E. Z. Lovegrove 1946-4-28 s.n. Napa Along trail to crater, Mt St Helena. Comment
  CAS-BOT-BC530127  Viola lobata subsp. integrifolia Alice Eastwood 1922-3-25 11095 Napa near Calistoga Comment
  UC1761540  Viola lobata subsp. lobata Milo S. Baker Napa Comment
  CHSC22402  Viola ocellata Robert A. Schlisingc 1964-3-24 2657 Napa Mount Veeder Road, 0.3 mi S of Jct of Mt. Veeder Rd and Dry Creek Rd. Comment
  UC1713553  Viola pedunculata Willis L. Jepson 1893-4-28 Napa n of Mount George (Upland Meadows); Napa River Basin, Upland Meadows Comment
  UCD111073  Viola pedunculata David Lawfer 1952-3-29 138 Napa Napa. Comment
  JEPS110842  Viola purpurea subsp. quercetorum Jake Ruygt 1990-4-21 2495 Napa Giles Mead Ranch, Atlas Peak Rd. 441 Comment
  RSA41973  Viola purpurea subsp. quercetorum Ella Dales Cantelow 1939-4-8 4549 Napa Howell Mtn. 0.5 mi N of Pacific Union College. Comment
  CAS-BOT-BC203087  Vitis californica Lewis S. Rose 1955-9-26 55191 Napa Below Conn Lake 4 mi. ne. of Rutherford 60 Comment
  JEPS110809  Vitis californica Jake Ruygt 1978-6-11 348 Napa 1.5 miles north of Silverado Trail on Soda Canyon Rd. 60 Comment
  RSA390411  Vitis californica T. Gertrude Williamson 1929-7-4 s.n. Napa Canyon behind White. Sulphur Springs, St Helena. Comment
  UCD16226  Vitis californica H. Olmo; G. Ishizuka 1967-10-14 67 02 Napa California. Napa County: vines in bay trees, 25 yards west of Bridge 21-62 along Soda Creek near Hwy 128 and Silverado Trail. Comment
  UCD16227  Vitis californica H. Olmo; G. Ishizuka 1967-10-14 67 03 Napa California. Napa County: 75 yards west of Bridge 21-62, along Soda Creek near Hwy 128 and Silverado Trail. Comment
  JEPS84616  Vulpia bromoides John W. Willoughby 1979-5-25 4328 Napa about 1 mi s Signal Hill (just below and w of Blue Ridge, n side of Pansy Flat); Vaca Mountains, Pansy Flat 609 Comment
  SD27913  Vulpia bromoides Carl B. Wolf 1928-5-3 1804 Napa 5 mi no. of Calistoga Mt. St. Helena Grade Comment
  RSA10104  Vulpia microstachys Joseph P. Tracy 1933-6-2 12476 .5 Napa Howell Mountain; on hills at head of Moore's Creek, 5 miles east of Angwin's, at food of Chamise Ridge. 396 Comment