Search Results — 2000 specimen records retrieved (1473 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UCD54553  Acacia baileyana Ellen Dean 2005-10-12 2741 Napa W of town of Napa. N side of Partrick Rd. 1660 Partrick Rd. 236 Comment
  UCD117009  Acer macrophyllum Beecher Crampton 1965-8-23 7492 Napa 2.5 miles east of Moskowite Corners, State Hwy. 128. Comment
  UCD47869  Achillea millefolium S. E. Ratay; M. Disney, J. Westbrook,R. Wolfson, A. Houser,S. Wathen 2000-4-22 27 Napa Napa Co., McLaughlin Reserve, Old Knoxville Townsite, 0.10 miles north of Berryessa-Knoxville Rd along Old Knoxville Rd. 396 Comment
  OBI17140  Achillea millefolium R. L. Hoover 1968-4-20 50 Napa On Howell Mtn Rd, 2.6 mi NE of State Rte 29/128, on E side of rd Comment
  RSA0045564  Achillea millefolium subsp. lanulosa Keith E. Hoffmaster 1946-3-23 s.n. Napa Napa range, along Napa-Monticello road Comment
  CAS-BOT-BC211901  Achnatherum coronatum G. L. Stebbins 1966-5-28 6426 Napa Markley Canyon, along State Highway 128, 3.5 miles west of Berryessa Dam 152 Comment
  UC769961  Achnatherum lemmonii Robert F. Hoover 1941-6-8 5320 Napa e side of Mt. St. Helena Mt. St. Helena Comment
  CAS-BOT-BC29759  Achyrachaena mollis Peter H. Raven 1950-5-6 2021 Napa near Old Faithful Geyser, N of Calistoga 182 Comment
  JEPS36724  Achyrachaena mollis W. L. Jepson 1915-4-23 6245 Napa Conn Valley; Napa Range, Conn Valley Comment
  UCD18081  Achyrachaena mollis Ellen Dean; with PLB 102 class 2000-4-22 636 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-BC29757  Achyrachaena mollis David D. Keck 1931-4-3 1058 Napa 7 miles NW of monticello (1 mile above the mouth of Pope Creek) Comment
  SBBG3379  Acmispon americanus J. M. Tucker 1941-9-20 393 Napa Putah Cyn, Vaca Range Comment
  JEPS129110  Acmispon americanus var. americanus Jake Ruygt 2015-6-6 6121 Napa Missimer-Snell Valley Preserve. Aetna Springs 7.5' Quad. Comment
  JEPS129159  Acmispon brachycarpus Jake Ruygt 2015-3-28 6053 Napa Snell Peak, Fernandez, Land Trust. Aetna Springs 7.5' Quad. Comment
  UCD118619  Acmispon brachycarpus Jason Saavedra; 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
  UCD47971  Acmispon brachycarpus A. Ryan; S. Burgess, A. Hufton, J. Pierner, B. Takahashi 2000-4-29 17 Napa Yolo Co/Napa Co line; McLaughlin Reserve, 1 mile (as the crow flies) N of old town of Knoxville. 609 Comment
  UCD75711  Acmispon glaber Jake Ruygt 2008-6-25 4931 Napa Peak below and SW of Berryessa Peak. 762 Comment
  UCD48948  Acmispon glaber var. glaber K. L. Wheeler; M. Bibbo, A. Koehmstedt, and T. Liebmann 2001-4-28 9 Napa Quail Ridge Reserve, SE corner of Lake Berryessa just W of Monticello Dam. Along West Rd., ca. 0.38 as the crow flies miles (1500 ft.) NW of jct, with S. Decker Canyon Rd. 237 Comment
  UCD160344  Acmispon parviflorus Nellie Coffey 1931-2-1 s.n. Napa Chiles Valley. Comment
  SEINET215111  Adenostoma fasciculatum Ben Henry 1973-5-5 30 Napa 2 miles above Monticello Dam on State Highway 128. Comment
  UCD112604  Adenostoma fasciculatum Kamala Crompton 1996-5-3 7 Napa Along Road 128, S of Lake Berryessa. Comment
  UCD48197  Adenostoma fasciculatum R. Blenkush; S. Hee, C. McWhorter, J. Moeller 2000-4-22 9 Napa Northern Napa County, McLaughlin Reserve, first ridge south of Knoxville-Berryessa Road, on Devilhead Road. 487 Comment
  CAS-BOT-BC65664  Adiantum jordanii James L. Reveal 1987-6-7 6397 Napa Vaca Mountains, along the Mix Canyon Road, 3 miles west of Pleasant Valley Road, about 6.5 miles northwest of Vacaville 609 Comment
  SEINET265721 Image available Adiantum jordanii Royal D. Suttkus 1967-6-26 67- 30 -33 Napa Clearly Reserves 7.2 miles NW of Pope Valley. Comment
  UCD49075  Aesculus californica M. Eng; W. Wong, N. Wannlund, and A. Holman 2002-5-4 6 Napa Quail Ridge UC Reserve, northern tip of ridge, N of intersection of East and West roads, along lower road leading to power lines. 20 ft. W of lat./long. position. Along second bend of the road. 30 ft. E of power lines. 304 Comment
  JEPS104514  Agoseris grandiflora Jake Ruygt 1982-5-1 1303 Napa .3 miles north of Chimney Rock Golf Cour se on Silverado Trail 20 Comment
  SEINET181203 Image available Agoseris grandiflora Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-7 15291 Napa 20 miles north of Napa Comment
  UCD160782  Agoseris grandiflora Ellen Dean; D. Potter, D. Hickson, R. Ruygt, C. Donkers 2015-5-2 8662 Napa Knoxville Wildlife Area. California Dept. of Fish and Wildlife public lands. Vicinity of headwaters of Nevada Creek. Northern part of land parcel. 552 Comment
  JEPS104519  Agoseris heterophylla Jake Ruygt 1978-5-21 330 Napa 4.5 NE of Sage Canyon Rd. on Chiles-Pope Valley Rd. 259 Comment
  JEPS104520  Agoseris heterophylla Jake Ruygt 1981-4-25 1002 Napa Table Mountain 621 Comment
  JEPS104537  Agoseris heterophylla Jake Ruygt 1993-4-12 3197 Napa south of James Creek Road and Butts Cany on Road. 213 Comment
  JEPS36282  Agoseris heterophylla var. cryptopleura W. L. Jepson 1920-5-25 9043 Napa Knoxville Ridge 670 Comment
  JEPS36237  Agoseris heterophylla var. heterophylla W. L. Jepson 1938-5-18 18798 Napa slope above St. Helena Sanitarium; Howell Mts. Comment
  UC194724  Agoseris hirsuta C. F. Sonne Apr 1888 Napa Comment
  CAS-BOT-BC127401  Agrostis elliottiana Peter H. Raven 1955-4-9 8268 Napa Howell Mountain (west slope). 457 Comment
  CAS-BOT-BC127138  Agrostis exarata Beecher Crampton 1957-6-4 4105 Napa Above Capell Creek, north end of Capell Valley. Comment
  CAS-BOT-BC127142  Agrostis exarata Peter H. Raven 1951-6-24 3020 Napa Brown's Valley - Sonoma Napa Road. 121 Comment
  OBI22552  Agrostis exarata Robert F. Hoover 1966-8-23 9932 Napa Butts Cyn near Lake Co. line Comment
  UCD37406  Agrostis exarata Beecher Crampton 1960-5-17 5536 Napa Napa County, 4 miles east of Rutherford. Comment
  UCD52141  Agrostis exarata Beecher Crampton 1958-11-6 5136 Napa above Capell Creek, north end of Capell Valley. Comment
  UCD52543  Agrostis exarata Beecher Crampton 1963-9-25 6905 Napa State Hwy. 37, west slope of Howell Mtns., east of Napa. Comment
  UCD32918  Agrostis exarata var. monolepis Beecher Crampton 1965-7-7 7441 Napa Napa County, north end of Capell Valley, Hwy. 128, above Capell Creek. Comment
  SEINET10843464  Agrostis foliosa Joseph P. Tracy 1905-7-5 Tracy 2210 Napa Howell Mountain, on hills at head of Moore's creek, 3.4 miles E of Angwin's. Comment
  CAS-BOT-BC139729  Agrostis gigantea Peter H. Raven 1951-6-24 3010 Napa Napa. 30 Comment
  UC187292  Agrostis hallii Joseph P. Tracy 1904-5-23 2093 Napa hills e Calistoga; Northern Coast Ranges 243 Comment
  CAS-BOT-BC138823  Agrostis microphylla Beecher Crampton 1956-5-21 3443 Napa Meadow, Myrtledale Hot Springs, 2 miles north of Calistoga. Comment
  CAS-BOT-BC139018  Agrostis pallens Joseph P. Tracy 1905-7-5 2210 Napa Northern Coast Ranges. Howell Mountain. On hills at head of Moore's Creek, 3-4 miles east of Angwin's. 365 Comment
  RSA40170  Agrostis pallens J. T. Howell 1943-6-19 18236 Napa Hills southwest of St. Helena Comment
  UCD36949  Agrostis pallens Beecher Crampton 1956-5-25 3479 Napa Eastern slope of Howell Mountains, above Wooden Valley. Comment
  UCD73507  Agrostis pallens Ayzik Solomeshch 2007-5-30 s. n. Napa northwest of the city of Napa. Woolls Ranch, 1032 Mt. Veeder Road. 152 Comment
  JEPS123026  Aira elegans Jake Ruygt 1982-4-29 1214 Napa Suscol plain east of Kaiser Steel, west of Highway 29 (221). Quad: Napa. Comment
  UC1745685  Allium amplectens Annetta M. Carter, Joseph Tracy, Rimo Bacigalupi 1950-5-23 2775 Napa Howell Mtn. La Jota Plateau - Las Posadas State Forest. 533 Comment
  UCD20680  Allium amplectens J. D. Clark 1995-5-27 17 Napa Napa County. Collected on trail between 1/4-3/4 mile from trailhead at Hwy 129. Trailhead begins on the east side of Hwy 129 across from the Robert Lewis Stevenson State Park parking lot. 548 Comment
  CAS-BOT-BC461088  Allium amplectens John Thomas Howell 1933-6-4 11391 Napa Hills east of Napa Comment
  SEINET3883772  Allium amplectens D. W. McNeal 1977-5-18 2032 Napa Beside Pope Valley Rd. 6.1 mi. n. of the jct. of Hwy. #128.; 0 Comment
  POM182671  Allium cratericola David D. Keck 1931-4-4 1090 Napa The Crater Country, 3.5 miles SE from the summit of Mt. St. Helena, northern Napa County. Comment
  JEPS47613  Allium falcifolium Rachael Wilcox 1944-5-9 Napa Conn Valley Comment
  JEPS47616  Allium falcifolium Miss Saidee Wallace 1909-4-23 Napa Pope Valley Comment
  UC1278731  Allium falcifolium G. L. Stebbins Jr. 1948-5-9 3936 Napa on road to Napa 8 mi s Monticello (w side of Steel Canyon); Steel Canyon 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
  CAS-BOT-BC469022  Allium falcifolium R. C. Barneby 1954-4-30 11336 Napa Conn Valley, near the slipway. Comment
  CAS-BOT-BC469030  Allium falcifolium Willis L. Jepson 1893-5-1 43 Napa Upper Conn Valley; Napa River Basin Comment
  RSA293012  Allium falcifolium Reino Alava, Lincoln Constance, Robert Ornduff 1957-5-5 763 Napa Mt St Helena. Comment
  CAS-BOT-BC468997  Allium fimbriatum var. fimbriatum David D. Keck 1931-4-3 1083 Napa Pope Creek Canyon, 8 miles NW. of Monticello Comment
  JEPS110936  Allium lacunosum var. lacunosum Jake Ruygt 1999-5-17 4160 Napa Wild Horse Valley Ranch, near Leoma Lakes 429 Comment
  JEPS129096  Allium serra Jake Ruygt 2016-5-3 6224 Napa Canyon south of Oil Well Road; E of Lake Berryessa. Lake Berryessa 7.5' Quad. Comment
  CAS-BOT-BC475561  Allium serra David D. Keck 1933-5-29 2374 Napa 1.3 miles south of Knoxville Comment
  JEPS110942  Allophyllum divaricatum Jake Ruygt 1989-4-8 2256 Napa about 1/2 mile south of Monticello Dam on Vaca Mtns. 402 Comment
  UC648320  Allophyllum divaricatum M. S. Jussel 1937-5-23 Napa Palisades Comment
  JEPS84573  Allophyllum divaricatum John W. Willoughby 1977-4-20 2127 Napa below and just to s. Mt. Vaca (w. side of Blue Ridge); Vaca Mts. 609 Comment
  CAS-BOT-BC170678  Alnus rhombifolia Herman Knoche 1919-11-22 3068 Napa Laguna Resort. Napa Comment
  JEPS68435  Alopecurus saccatus W. L. Jepson 1921-5-6 9181 Napa Calistoga 109 Comment
  CHSC103021  Amaranthus blitoides Lowell Ahart 2009-10-12 16469 Napa Along Capell Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile soutwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. 133 Comment
  JEPS54296  Amaranthus californicus W. L. Jepson 1930-10-19 15683 Napa Conn Creek Napa Valley 45 Comment
  UCD161296  Amaranthus deflexus Jake Ruygt 1978-6-20 366 Napa Napa County : 'H' Street, Napa. (Coordinates estimated by label maker at UC Davis). 12 Comment
  JEPS54330  Amaranthus retroflexus W. L. Jepson 1894-11-5 Napa St. Helena Comment
  RSA92940  Ambrosia psilostachya Peter H. Raven 1951-9-9 3899 Napa Near slaughterhouse Point, Napa River. 0 Comment
  UCD33089  Amelanchier alnifolia Beecher Crampton 1966-5-10 7716 Napa 9 miles east of Rutherford on State Hwy. 128. Comment
  CAS-BOT-BC136740  Amelanchier utahensis Clara A. Hunt 1923-1-1 s.n. Napa Near St. Helena Comment
  CAS-BOT-BC136745  Amelanchier utahensis John Thomas Howell 1940-5-19 15446 Napa Upper St. Helena Creek Comment
  JEPS110658  Amelanchier utahensis Jake Ruygt 1989-4-22 2260 Napa 2.5 miles NE of Atlas Peak Rd. on Monticello Rd. 307 Comment
  JEPS112659  Ammannia robusta Jake Ruygt 1999-7-28 4212 Napa Lake Hennessey at the boat ramp. 94 Comment
  JEPS16024  Ammi majus W. L. Jepson Sep 23 1893-Sep 25 1893 14204 Napa Yountville Comment
  JEPS16027  Ammi majus Willis L. Jepson 1893-4 14205 Napa near Yountville; Napa Valley, Napa R. Basin Comment
  UCD127156  Ammi majus Rimo Bacigalupi; G. T. Robbins, C. L. Custer 1954-8-9 4752 Napa escape along roadside, just north of the city limits of Napa, about 1/4 mile west of the northern end of Jefferson Street. 18 Comment
  UCD127163  Ammi majus R. Tofsrud; J. M. Tucker 1948-7-14 s.n. Napa Cox Ranch on Highway 29 between Napa and Yountville Comment
  CAS-BOT-BC177207  Amorpha californica var. napensis Alice Eastwood 1923-5-9 11743 Napa Calistoga Comment
  CAS-BOT-BC177209  Amorpha californica var. napensis C. H. M. 1907-7-10 s.n. Napa Howell Mt. Comment
  POM262978  Amorpha californica var. napensis J. C. Roos 1939-4-29 289 Napa Angwin, Howell Mountain Comment
  CDA27222  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 3 of 3. Comment
  JEPS61121  Amsinckia intermedia Willis L. Jepson 1893-4-28 21080 Napa gorge n of Wooden Valley grade (w slope Napa Range, n of Mt. George); Napa River Basin, Napa Range, Mt. George Comment
  UC1094054  Amsinckia intermedia Francia Chisaki 1954-4-15 593 Napa 5 mi n of cut-off from Hwy #29 on Silverado Trail Comment
  UCD119756  Amsinckia menziesii M. Ramos 1996-4-20 7 Napa City of Calistoga, along Lommel Road, off of Silverado Trail. 129 Comment
  UCD119763  Amsinckia menziesii S. Galen Smith 1951-4-15 s.n. Napa Along Silverado Trail. Comment
  UC1178212  Amsinckia menziesii var. menziesii S. Galen Smith 1951-4-15 Napa along Silverado Trail Comment
  UCD170834  Anagallis arvensis 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
  UCD83667  Anagallis arvensis Yuan-Chun Han; E. Dean, S. Foutouhi 2010-5-7 2 Napa Along Wooden Valley Road. Lamb Family Vineyards property on east side of the road. 175 Comment
  CAS-BOT-BC64144  Ancistrocarphus filagineus M. S. Jussel 1931-4-19 s.n. Napa Pope Valley Comment
  HSC81866  Ancistrocarphus filagineus Thomas W. Nelson, Jane P. Nelson 1980-5-3 5142 Napa Along Butts Canyon Rd. N of Pope Valley 274 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
  UCD143049  Angelica californica V. (Shorty) Boucher 2002-4-11 10 Napa Quail Ridge UC Reserve. SE corner of Lake Berryessa, just W of Monticello Dam. Along West Ashley Easement Rd. (West Rd), at base of road closed with brush pile. About 700 ft NW of locality of Dean 730 (Nasella pulchra), which is ca. 2400 airline feet NW of the junction of West Rd and South Decker Canyon Rd. Coordinates are for the Dean 730 locality. 274 Comment
  JEPS14087  Angelica tomentosa W. L. Jepson 1938-9-24 19021 Napa n of Pope Valley (Limekiln Creek); Limekiln Creek 304 Comment
  UCD73051  Anisocarpus madioides Ellen Dean; S. Rae 2008-5-21 4970 Napa Hills to the west of Hwy. 29. Private property accessed by Diamond Mountain Road. Canyon runnning east to west. 213 Comment
  IRVC19774  Anthriscus caucalis Anne E. Justice 1981-4-27 s.n. Napa 10 miles from Winters on Hwy 128, just past Monticello Dam. Comment
  JEPS14068  Anthriscus caucalis W. L. Jepson 1936-6-2 17603 Napa e of St. Helena (thickets on bank of Napa River, near bridge on road to St. Helena Sanitarium); Napa River Comment
  JEPS110619  Antirrhinum cornutum Jake Ruygt 1986-6-28 1849 Napa 1.0 mile north of Snell Valley Rd. on Butts Canyon Rd. 208 Comment
  SBBG83247  Antirrhinum vexillocalyculatum D. M. Thompson 1983-6-15 330 Napa 0.3 mi N of Porter Crk Comment
  UCD149674  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum Ayzik Solomeshch 2008-4-20 s.n. Napa North side of Pope Canyon Road, ca. 2 km west of intersection with Berryessa-Knoxville Road 140 Comment
  JEPS83352  Antirrhinum virga David M. Thompson 1983-6-16 334 Napa Twin Peaks Mine area along gravel road next to Bateman Creek (This gravel road starts at the junction of Oat Hill Road and Livermore Road Twin Peaks Mine area along gravel road next to Bateman Creek (Napa/Lake Co. line); Detert Reservoir Quad. (7.5', 1958) 579 Comment
  UC147871  Antirrhinum virga J. P. Tracy 1899-6-18 368 Napa 3-4 mi e Angwin's (La Jota Plateau, Head of Moore's Creek); Howell Mountain, Moore's Creek, La Jota Plateau 518 Comment
  CAS-BOT-BC451168  Aphanes Peter H. Raven 1953-3-29 5221 Napa Hills e. of Imola 121 Comment
  JEPS104567  Apiastrum angustifolium Jake Ruygt 1982-4-4 1165 Napa 3.2 miles north of Loma Vista Rd. on Soda Canyon Rd. 335 Comment
  UCD126301  Apiastrum angustifolium Beecher Crampton 1967-5-11 7920 Napa 4.5 miles east of Rutherford, south slope, Conn Reservoir. 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
  UC1196199  Aquilegia eximia Joseph P. Tracy Jul 2 1899-Jul 5 1899 353 Napa 3-4 mi e Angwin's (hills at head of Moore's Creek); Northern Coast Ranges, Howell Mt. Comment
  JEPS106845  Arabis glabra Jake Ruygt 1992-4-7 2892 Napa Tuteur Ranch, SW corner 365 Comment
  JEPS53030  Arabis glabra Willis L. Jepson 1893-4-24 32 c Napa hills e St. Helena (to Conn Valley grade); Napa River Basin Comment
  UCD74381  Arabis modesta Jake Ruygt 1987-2-28 1923 Napa Monticello Dam. 164 Comment
  UCD161603  Arabis modesta Jake Ruygt 1999-4-3 4126 Napa Blue Ridge near the Guinda Quad. 731 Comment
  UC21794  Arbutus menziesii Willis L. Jepson 1894-1 Napa Napa River Basin Comment
  UCD20033  Arbutus menziesii C. H. Lamoureux; J. M. Tucker and R. Gankin 1957-4-17 1205 Napa 8 miles north of Calistoga on Hwy 29, 1.2 miles north of crest of Hwy 29 on Mt. St. Helena. Comment
  CDA37815  Arctium lappa S. Longo/J. Chang 2012-6-26 PDR# 280 P06089864 Napa Napa; 3200 Soda Canyon Road, near Loma Vista Dr. 0 Comment
  JEPS38624  Arctostaphylos canescens W. L. Jepson 1913-4-15 5311 Napa La Jota Plateau Howell Mountain Comment
  CAS-BOT-BC23961  Arctostaphylos canescens subsp. canescens Walter Knight; Irja Knight 1963-9-23 105 Napa Near quarry, near Lake County Line, Mt. St. Helana. Adjacent to Silverado State Park. Comment
  CAS-BOT-BC23984  Arctostaphylos canescens subsp. canescens Mrs. S. Earle Kelley 1918-8-1 s.n. Napa Mt. St. Helena Comment
  CAS-BOT-BC23994  Arctostaphylos canescens subsp. canescens Carl B. Wolf 1928-5-4 1859 Napa Mt. St. Helena, just above toll house. Comment
  CAS-BOT-BC24018  Arctostaphylos canescens subsp. canescens John Thomas Howell 1930-3-23 4563 Napa Crater Country, near Mt. St. Helena Comment
  JEPS48499  Arctostaphylos canescens subsp. canescens Elsa Kraeger 1926-3-28 Napa e slope Mt. St. Helena Comment
  RSA301585  Arctostaphylos canescens subsp. canescens E. A. Goldman 1907-12-29 69 Napa Mt. St. Helena. 1067 Comment
  RSA40453  Arctostaphylos canescens subsp. canescens L. R. Abrams 1928-5-4 12271 Napa Near summit Mt. St. Helena. Comment
  UCD73392  Arctostaphylos canescens subsp. canescens 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
  UCD148592  Arctostaphylos crustacea subsp. crustacea G. F. Hrusa; G. L. Webster, J. M. Tucker 1994-10-29 11918 Napa Mt. George Napa Land Trust Reserve. 390 Comment
  UCD73454  Arctostaphylos glandulosa Ayzik Solomeshch 2007-5-30 s. n. Napa Brend-Morgan property, ca. 3 miles northeast of city of Napa. 215 Comment
  CAS-BOT-BC24862  Arctostaphylos glandulosa subsp. cushingiana Gertrude Raven Hardman 1968-2-1 s.n. Napa Pope Valley Comment
  CAS-BOT-BC23147  Arctostaphylos glandulosa subsp. glandulosa Alice Eastwood 1922-5-4 11282 Napa Mt. St. Helena Comment
  UC1120199  Arctostaphylos glandulosa subsp. glandulosa A. Lewis 1932-5-16 83 Napa Sarcos Creek Napa Quadrangle Comment
  UC421585  Arctostaphylos glandulosa subsp. glandulosa John Thomas Howell 1930-3-23 4562 Napa near Mt. St. Helena Comment
  UCR228649  Arctostaphylos glandulosa var. cushingiana Ellen Dean, Stephen Rae 2008-5-21 4981 Napa Hills to the west of Hwy 29. Private property accessed by Diamond Mountain Road 268 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
  RSA734316  Arctostaphylos manzanita C. B. Wolf 1928-5-4 1861 Napa Upper slopes of Mount St. Helena. Comment
  UC549544  Arctostaphylos manzanita J. E. Adams 1934-4-10 647 Napa Mt. St. Helena Comment
  CAS-BOT-BC38914  Arctostaphylos manzanita subsp. elegans J. W. Stacey 1922-3-1 s.n. Napa Mountains of Napa Co. Comment
  JEPS106416  Arctostaphylos manzanita subsp. elegans Jake Ruygt 1978-3-19 245 Napa Mt. St. Helena 1097 Comment
  CAS-BOT-BC24279  Arctostaphylos manzanita subsp. manzanita L. R. Abrams 1916-7-2 5771 Napa Near Saint Helena Sanitarium. Comment
  CAS-BOT-BC24282  Arctostaphylos manzanita subsp. manzanita Willis Linn Jepson 1896-2-23 s.n. Napa Howell Mt. Napa River Basin. Comment
  CAS-BOT-BC38729  Arctostaphylos manzanita subsp. manzanita John Thomas Howell 1933-4-2 10952 Napa Serpentine ridge, 2 miles e. of Occidental Comment
  JEPS122813  Arctostaphylos manzanita subsp. manzanita Jake Ruygt 2007-1-21 5106 Napa Chiles Valley Road northwest of Turtle Rock. QUAD: Chiles Valley. Comment
  POM131775  Arctostaphylos manzanita subsp. manzanita D. O. Hunt 1899-2-11 10640 Napa St. Helena. Comment
  UC1543123  Arctostaphylos manzanita subsp. manzanita Charlotte G. Nast 1936-3-27 41 Napa Putah Canyon Comment
  UC909842  Arctostaphylos manzanita subsp. manzanita J. E. Adams 1934-3-10 646 Napa Mt. St. Helena 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-BC43860  Arctostaphylos stanfordiana Lewis S. Rose 1964-4-2 64015 Napa 2 mi. sw. of Angwin 243 Comment
  CAS-BOT-BC43863  Arctostaphylos stanfordiana Alice Eastwood 1915-6-7 4696 Napa Mt. St. Helena Comment
  CAS-BOT-BC43868  Arctostaphylos stanfordiana Alice Eastwood 1922-3-25 11089 Napa Calistoga Comment
  CAS-BOT-BC43872  Arctostaphylos stanfordiana John Thomas Howell 1930-7-13 5356 Napa edge of the Crater Country Comment
  JEPS38877  Arctostaphylos stanfordiana W. L. Jepson 1936-12-3 17977 Napa near Four Corners; Napa Range, Howell Mt. Comment
  OBI14514  Arctostaphylos stanfordiana H. E. McMinn 1936-4-4 4400 Napa By bridge about 2 mi N of Mt. st. Helena Inn 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
  UC421586  Arctostaphylos stanfordiana John Thomas Howell 1926-3-21 1704 Napa along trail to summit Mt. St. Helena Comment
  UCD53853  Arctostaphylos stanfordiana W. L. Jepson 1937-4-9 17 997 Napa On a cross-rift or rock traverse 1/4 mile below summit; Adam-and-Eve Ridge; Howel Mountain. Comment
  UCR23649  Arctostaphylos stanfordiana John C. Roos 1939-1-21 300 Napa North Coast Range, Pacific Union College, Angwin 549 Comment
  SEINET8729967 Image available Arctostaphylos stanfordiana Lewis S. Rose 1937-1 37019 Napa Wooden Valley Grade, 8 mi. NE. of Napa. Comment
  JEPS120405  Arctostaphylos stanfordiana subsp. decumbens Jake Ruygt 2007-3-3 5123 Napa About 1/2 mile SE of Las Posadas Fire Station. Comment
  JEPS38681  Arctostaphylos stanfordiana subsp. stanfordiana W. L. Jepson 1924-4-27 10373 Napa Mt. St. Helena; at toll house Comment
  POM202671  Arctostaphylos stanfordiana subsp. stanfordiana Alice Eastwood 1922-3-25 11089 Napa Calistoga Comment
  POM367457  Arctostaphylos stanfordiana subsp. stanfordiana Lester Rowntree 1930-7-17 s.n. Napa Napa Comment
  RSA293482  Arctostaphylos stanfordiana subsp. stanfordiana C. W. Tilforth 1979-7-22 1854 Napa Along Wooden Valley Rd., north-east of Napa. Comment
  UC2026413  Arctostaphylos stanfordiana subsp. stanfordiana Louis C. Wheeler 1952-8-30 6876 Napa MANGANESE RIDGE: Moore Creek, Howell Mountain. Comment
  UCD52212  Arctostaphylos viscida R. L. Smith 1948-4-17 s.n. Napa 5 miles north of Aetna Springs, Pope Valley, Napa County, California. Comment
  UC1388347  Arctostaphylos viscida subsp. viscida Freed W. Hoffman 1947-3-20 874 Napa Pope Creek North Coast Ranges Comment
  UCD20914  Aristolochia californica V. (Shorty) Boucher 2002-3-27 5 Napa Quail Ridge UC Reserve. SE corner of Lake Berryessa, just W of Monticello Dam. Northern end of Quail Ridge peninsula, just north of intersection of upper and lower Ridge Roads, under powerlines. 243 Comment
  UCD129045  Arnica discoidea Beecher Crampton 1965-6-17 7406 Napa Solano-Napa Counties:Vaca mountains, summit of Mt. Vaca. 859 Comment
  UCD38610  Arnica discoidea Beecher Crampton 1956-5-25 3484 Napa Howell Mtns. Comment
  UCD161511  Arnica discoidea Jake Ruygt 1989-5-20 2343 Napa Vaca Mountains about 1 mile north of Mt. Vaca. 804 Comment
  JEPS129155  Arum italicum Jake Ruygt 1993-2-13 3162 Napa End of Poison Road (county road). Cordelia 7.5' Quad. Comment
  UC22997  Asclepias fascicularis W. H. Brewer 1862-8-6 1321 Napa near Camp 84; Rag Canyon Comment
  JEPS129152  Asparagus officinalis subsp. officinalis Jake Ruygt 1979-5-23 628 Napa Napa River south of Trancas Street, Napa. Napa 7.5' Quad. Comment
  CAS-BOT-BC68860  Aspidotis californica Peter H. Raven 1950-4-15 1747 Napa Wooden Valley Grade above Napa 457 Comment
  JEPS103979  Aspidotis densa Jake Ruygt 1979-4-6 486 Napa .3 mile east of Butt's Canyon Rd. on Snell Valley Road 213 Comment
  UC796474  Aspidotis densa Ira L. Wiggins 1949-4-30 12094 Napa ne slopea Mt St Helena (near hwy between Calistoga and Middletown, near Lake Co line) 853 Comment
  CAS-BOT-BC140643  Asteraceae John Thomas Howell 1987-10-15 s.n. Napa Vineyard of Eugene and Cody Gillette Kirkham, Silverado Trail North, St. Helena Comment
  CAS-BOT-BC478055  Asteraceae Paul F. Covel 1940-4-28 1709 Napa CCC-Las Posadas Camp - near Pac. Union College Comment
  CAS-BOT-BC180454  Astragalus breweri G. L. Stebbins 1972-4-26 8082 Napa Chiles Valley road, about 1 mile northwest of State Highway no. 128 350 Comment
  CHSC84572  Astragalus breweri John Dittes 2003-4-5 2003 -13 Napa Inner North Coast Range; Napa Valley; approximately 1.8 air-miles north by northwest of Calistoga City Hall, approximately 1.0 air-mile northwest of confluence of Napa River and Garnett Creek. Alfalfa field southwest of intersection of Bennet Lane and Tubbs Lane. 123 Comment
  JEPS48894  Astragalus breweri Elsa Kraeger 1926-3-27 Napa near Geyser (Calistoga, in field); Calistoga, near Geyser Comment
  RSA424721  Astragalus claranus Aaron Liston, M. Blumler, B. Grummer 1987-4-25 661 -1 Napa NE side of Lake Hennessey, Conn Valley Road. Comment
  UCD170279  Astragalus clevelandii Daniel Potter; Ninh Khuu, Sarah Dohle, James Shoulders 2015-6-13 813 Napa Knoxville Wildlife Area, along Nevada Creek. 471 Comment
  UCD104826  Astragalus gambelianus G. L. Webster 1967-3-23 7490 Napa 1 mi. S of Spanish Flat. 167 Comment
  CAS-BOT-BC27753  Astragalus rattanii var. jepsonianus John Thomas Howell 1939-4-30 14625 Napa Walter Springs Comment
  CDA11340  Athysanus pusillus G. F. Hrusa 1995-4-2 12050 Napa North Coast Biodiversity Arena; Alongside Highway 128 at Lake Hennessey. Comment
  JEPS106842  Athysanus pusillus Jake Ruygt 1998-3-21 3887 Napa Intersection of Devilhead Road and Hunting Creek Road 493 Comment
  SEINET3165955  Athysanus pusillus C. D. Bailey 2008-3-19 260 Napa East of the town of Napa along Combsville Rd. Follow onto Wild Horse Valley Rd. as Combsville Rd. comes to an end. Ca. 1 mile up Wild Horse Valley Rd. on a road cut. 183 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
  UCD18015  Athysanus pusillus Ellen Dean; with Susan Harrison, Dean Enderlend, Joe Callizo 2000-3-18 560 Napa Napa County. McLaughlin Reserve. South side of Knoxville-Berryessa Rd., just north of Hunting Creek, SE of Research Hill, by turnout and gate. Joe Callizo calls this area 'Cloaca of Morgan Valley. 609 Comment
  UCD56245  Avena barbata Beecher Crampton 1965-6-30 7407 Napa Solano -- Napa Co.: Mt. Vaca. Vaca Mtns. 872 Comment
  CAS-BOT-BC145927  Avena fatua E. Ruckert 1960-4-29 120 Napa 6465 Dry Creek Road. Pond 300 yards from house. 365 Comment
  CAS-BOT-BC145929  Avena fatua Peter H. Raven 1952-5-9 4082 Napa Napa River 1 mile north Napa. 60 Comment
  JEPS104528  Baccharis pilularis Jake Ruygt 1991-9-23 2845 Napa Napa River north of Slaughterhouse Point 1 Comment
  UC1222975  Baccharis pilularis Joseph P. Tracy 1948-11-15 18258 Napa near, on Silverado Trail e side of Napa Valley St. Helena Comment
  UCD129468  Baccharis salicifolia subsp. salicifolia G. F. Hrusa; S. Larson 1995-4-10 12055 Napa along Chiles Valley-Pope Valley Road. Approximately 2 miles east of Lake Hennessey. 200 Comment
  UCD81444  Baccharis salicifolia subsp. salicifolia M. Wiesendanger 1926-4-1 1498 Napa Napa County. Comment
  CAS-BOT-BC16528  Barbarea orthoceras Betty H. Johnson 1958-6-15 641 Napa 0.25 mile above Mt. Mill House, 6.4 miles southwest of Middletown. Comment
  CAS-BOT-BC16531  Barbarea orthoceras Peter H. Raven 1951-6-10 2926 Napa Center Region east of Palisades. 762 Comment
  UCD19929  Barbarea orthoceras E. A. Dean; J Bradford, K. Mawdsley, and L Wynholds 2001-7-13 785 Napa Quail Ridge Reserve. Slough on N side of Decker Bay trail, in a dried inlet of Lake Beryessa. 128 Comment
  UCR267445  Barbarea vulgaris Catherine Koehler 2012-5-23 s.n. Napa McLaughlin UC Reserve; Hunting Creek between Hunting Creek Campground and contractor road 366 Comment
  UCD56790  Beckmannia syzigachne A. A. Beetle 1946-7-13 4694 Napa SE 1 mi. from Calistoga. Comment
  JEPS106879  Berberis aquifolium var. dictyota Jake Ruygt 1992-3-28 2869 Napa small tributary to Butts Creek, near Berryessa Estates 161 Comment
  RSA52658  Berberis pinnata I. L. Wiggins 1949-4-30 12089 Napa E flank of Mt St Helena. 915 Comment
  CAS-BOT-BC15945  Boechera breweri subsp. breweri David D. Keck 1933-5-29 2360 Napa Pope Creek Bridge south of Walters Springs. Comment
  PASA1885  Boisduvalia densiflora Frank W. Peirson 1928-7-4 Napa Summit of St. Helena Grade Comment
  RSA182010  Boisduvalia densiflora var. densiflora W. L. Jepson 1944-7-30 27545 Napa 3 miles SE of Yountville, Napa Valley. Comment
  SBBG128576  Bolboschoenus maritimus L. Ahart 2009-10-12 16460 Napa below high water line of Lake Berryessa, along Capell Crk S of Rest Area, 0.75 mi NE of Hwy 128 on Berryessa Knoxville Rd, 0.75 mi SW of Capell Cove Launch Ramp on Berryessa Knoxville Rd 133 Comment
  UCD159930  Brachypodium distachyon Alice Warrick 2007-4-26 s.n. Napa Quail Ridge UC Reserve. 2005 Pleasure Fire burn site, along west loop road, north of Decker canyon. Q43-1. 243 Comment
  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
  UCD129630  Brickellia californica D. H. Hartmann 1941-8-19 s.n. Napa Putah Canyon. Comment
  JEPS75998  Briza minor W. L. Jepson 1936-6-1 17592 Napa Four Corners Napa Range, Howell Mt. (w side) Comment
  RSA247335  Briza minor Gary D. Wallace 1967-5-27 767 Napa Northwest of St. Helena on Howell Mtn. Rd. 2 mi west of Pacific Union College. Comment
  UC1543022  Briza minor Donald G. Nelson 1936-4-1 123 Napa along trail to Green Valley Falls Comment
  UCD160776  Briza minor Ellen Dean; D. Potter, D. Hickson, R. Ruygt, C. Donkers 2015-5-2 8656 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
  RSA491733  Brodiaea californica subsp. leptandra James L. Reveal 1987-6-7 6407 Napa Along California Highway 128 near its intersection with the Berryessa-Knoxville Road, about 5 miles west-northwest of Moskowite Corner, about 13.5 airline miles north of Napa 244 Comment
  UCD148580  Brodiaea leptandra Jake Ruygt 1992-5-25 3006 Napa Napa County; north of Leoma Lakes near access road to Wild Horse Valley Reservation. 411 Comment
  UCD36943  Bromus carinatus Beecher Crampton 1956-5-25 3464 Napa Between Wragg Canyon and southeastern Capell Valley. Comment
  UCD57978  Bromus carinatus Beecher Crampton 1956-5-25 3473 Napa Southeastern Capell Valley. Comment
  UCD58266  Bromus carinatus Beecher Crampton 1956-5-25 3464 Napa Between Wragg Canyon and Southeast Capell Valley. Comment
  UCD58297  Bromus carinatus Beecher Crampton 1956-5-25 3457 Napa Head of Markley Canyon. Vaca Mtns. Comment
  JEPS123013  Bromus carinatus var. carinatus Jake Ruygt 1990-5-16 2549 Napa Calistoga Campground, Lommel Road. Quad: Calistoga. Comment
  JEPS76092  Bromus carinatus var. carinatus W. L. Jepson 1938-5-24 18849 Napa Plateau n of Four Corners (Napa Range, Howell Mountain); Napa Range, Howell Mountain 762 Comment
  SEINET201050 Image available Bromus carinatus var. carinatus J. P. Tracy 1902-5-21 1580 Napa Dry hillside 457 Comment
  UCD60199  Bromus catharticus var. elatus Peter H. Raven 1957-5-5 10788 Napa Calistoga. 91 Comment
  SACT000490  Bromus commutatus M. Wiesendanger 1927-5-4 Napa Comment
  UC60218  Bromus diandrus Willis L. Jepson Napa Napa River Basin, Napa Valley Napa Valley; Napa River Basin, Napa Valley Comment
  UCD17982  Bromus hordeaceus Ellen Dean; with Plant Biology 102 class 2001-4-14 708 Napa SE corner of Lake Berryessa, just W of Monticello Dam. Quail Ridge Reserve. Along North Decker Canyon Trail, N of trail. 182 Comment
  UCD58765  Bromus hordeaceus P. Rodriguez-Rojo 1997-4-20 s.n. Napa Lake Berryessa. Capell Creek. 155 Comment
  SBBG20183  Bromus laevipes M. S. Walters 1960-6-18 Napa St Hwy 128 ca. 1 mi W of Conn Lake picnic grounds (ca. 4 mi E of Rutherford) Comment
  UC1010990  Bromus laevipes Virginia Bufford 1936-5-20 321 Napa Calistoga-Healdsburg Highway at Sonoma-Napa County line Calistoga-Healdsburg Highway; , Sonoma-Napa County line Comment
  UCD72385  Bromus laevipes G. F. Hrusa; Marcel Rejmanek 1993-5-15 10973 Napa Quail Ridge Reserve--Univ. of California. 225 Comment
  UCD159919  Bromus rubens 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. 243 Comment
  UCD59601  Bromus rubens David L. Morgan 1961-5-16 s.n. Napa Napa Cemetery, Napa. Comment
  CAS-BOT-BC185228  Calamagrostis koelerioides Beecher Crampton 1957-5-16 4045 Napa Above Capell Creek, north end of Capell Valley. Comment
  JEPS100895  Calamagrostis ophitidis Dean W. Taylor 1998-5-14 16440 Napa Asbestos Mine, Steele Canyon (southerly arm of Lake Berryessa) 301 Comment
  UCD37118  Calamagrostis ophitidis Beecher Crampton 1957-5-16 4045 Napa Napa County, north end of Capell Valley, along Highway 128, above Capell Creek. Comment
  CAS-BOT-BC438472  Calandrinia ciliata Elsa G. Ruckert 1960-4-3 64 Napa 6495 Dry Creek Road, west of house 365 Comment
  UCD169609  Calochortus amabilis 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
  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
  CAS-BOT-BC488491  Calochortus amabilis L. R. Abrams 1928-5-3 12208 Napa St. Helena Grade Comment
  POM169455  Calochortus amabilis C. F. B 1903-4-20 2622 Napa Mt. St. Helena. Comment
  SBBG953  Calochortus amabilis H. and M. Dearing 1939-4-30 3236 Napa N of Saint Helena Comment
  SEINET5725020 Image available Calochortus amabilis Richard Beaver 1965-1 151 Napa on a slope with various shrubs, sandy clay soil; 10 miles north of the junction of Highway 128 with Highway 121. Comment
  UCD73424  Calochortus argillosus Ayzik Solomeshch; Stephen Rae 2007-5-30 s. n. Napa Brend-Morgan property, ca. 3 miles northeast of city of Napa. 215 Comment
  JEPS128392  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
  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
  UCD161497  Calochortus luteus Ellen Dean; D. Potter, D. Hickson, R. Ruygt, C. Donkers 2015-5-2 8654 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
  UCD170363  Calochortus luteus Daniel Potter; N Khuu, D McNair, A Holland, K Battenberg 2016-4-24 861 Napa Knoxville Wildlife Area, south of Nevada Creek. 450 Comment
  UCD70349  Calochortus luteus P. J. Plummer 1995-5-29 s.n. Napa Napa County Along hwy 128; 1 m from the hwy. Flowers bright yellow with brown-purple stripes and splotches. 213 Comment
  CAS-BOT-BC492543  Calochortus luteus Tom Craig 1941-6-18 s.n. Napa Road between St. Helena and Pope Valley, N.E. of St. Helena Comment
  CAS-BOT-BC492544  Calochortus luteus Betty H. Johnson 1958-6-8 610 Napa Near St Helena River, 6.4 mi. S.W. of Middleton Comment
  SEINET4169986  Calochortus pulchellus H. E. Cott 1949-6-5 A- 120 Napa Along State Hwy. 37, ca. 10 mi from jct. with Hwy. 28 Comment
  CAS-BOT-BC483612  Calochortus tolmiei Peter H. Raven 1964-5-9 19056 Napa 2 miles west of Aetna Springs Comment
  CAS-BOT-BC132623  Calochortus uniflorus C. F. B. 1903-4-19 1979 Napa Calistoga Comment
  CAS-BOT-BC132624  Calochortus uniflorus John Thomas Howell 1926-3-27 1757 Napa Myrtledale Hot Springs near Calistoga 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
  RSA3280  Calochortus uniflorus D. D. Keck 1931-4-4 1097 Napa Geysers just NW of Calistoga, NW Napa County 110 Comment
  JEPS122766  Calochortus venustus Jake Ruygt 1999-7-3 4197 Napa Newell Canyon. Quad: Cordelia. Comment
Read comments
Dec 13 2016
  JEPS129050  Calycadenia fremontii Jake Ruygt 2016-7-23 6295 Napa Smittle Creek, west side of Lake Berryessa. Chiles Valley 7.5' Quad. 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
  UCD167107  Calycadenia fremontii Jake Ruygt 2015-5-23 6112 Napa Missimer - Snell Valley Preserve. 177 Comment
  SEINET3863994  Calycadenia fremontii G. D. Carr 1971-8-6 616 Napa Lower Chiles Valley Rd, 1.3 mi N of its jct with Hwy 128, 11 mi SE of Pope Valley, on E slope.; 0 313 Comment
  UC935693  Calycadenia multiglandulosa D. D. Keck 1933-7-1 2467 Napa 2 mi SW of Pacific Union College Howell Mountain Comment
  CAS-BOT-BC270824  Calycadenia pauciflora Gerald D. Carr 1971-9-20 666 Napa 4.2 miles N of Spanish Flat on Knoxville - Berryessa Road 152 Comment
  CAS-BOT-BC270829  Calycadenia pauciflora Gerald D. Carr 1972-8-21 729 Napa 3.0 miles NE of Chiles and Pope Valley Road on Pope Canyon Road 182 Comment
  JEPS106901  Calycadenia pauciflora Jake Ruygt 1979-7-21 762 Napa corner of Snell Valley Rd. and Butts Can yon Road 198 Comment
  JEPS38539  Calycadenia pauciflora W. L. Jepson 1916-8-6 6831 Napa Howell Mt. Comment
  RSA255599  Calycadenia pauciflora Gerald D. Carr 1971-8-6 616 Napa Lower Chiles Valley Road, 1.3 miles north of Hwy. 128 Comment
  UCD129812  Calycadenia pauciflora Gerald D. Carr 1971-8-6 620 Napa Lake Hennessy, Hwy 128, 1.7 miles southwest of Chiles-Pope Valley Road. Comment
  CAS-BOT-BC270823  Calycadenia pauciflora Gerald D. Carr 1971-9-20 672 ? Napa 0.8 mile NW of Knoxville on Morgan Valley Road 457 Comment
  CAS-BOT-BC270826  Calycadenia pauciflora Gerald D. Carr 1972-8-9 726 Napa Mysterious Creek Road, 10.0 miles SW of Berryessa - Knoxville Road, via Devilhead Road Comment
  CAS-BOT-BC270827  Calycadenia pauciflora G. D. Carr 1971-9-20 672 Napa 0.8 mile NW of Knoxville Road 458 Comment
  POM180990  Calycadenia pauciflora J. T. Howell 1930-10-19 5626 Napa 5 miles north of Aetna Spring near Napa-Lake County line Comment
  UCD129823  Calycadenia pauciflora Gerald D. Carr 1971-10-23 681 Napa 1/4 mile west of Berryessa-Knoxville Road on Highway 128. Comment
  UC89042  Calycadenia truncata K. Brandegee 1888-9-1 Napa Howell Mountain Comment
  UCD129878  Calycadenia truncata Gerald D. Carr 1971-11-6 686 Napa 0.8 mile south of Angwin on Howell Mt. Road. Comment
  CAS-BOT-BC271562  Calycadenia truncata subsp. truncata H. M. Hall 1924-9-30 s.n. Napa St. Helena Comment
  RSA31986  Calycadenia truncata subsp. truncata A. A. Heller 1941-9-22 16317 Napa Roadside bank 1 mile north of Yountville. Comment
  CAS-BOT-BC90959  Calycanthus occidentalis Peter H. Raven 1950-6-20 2335 Napa In the Napa Range between Saint Helena and Conn Valley. Comment
  JEPS40309  Calycanthus occidentalis W. L. Jepson 1894-10-19 Napa sw of Calistoga (Rebecca Ranch Grade); Napa Valley Comment
  JEPS40320  Calycanthus occidentalis Willis L. Jepson Jul 1894 Napa Mt. St. Helena Comment
  POM210622  Calycanthus occidentalis Joseph A. Ewan 1933-9-17 8010 Napa Mt. St. Helena summit road 2.5 miles out of Calistoga. Comment
  POM255860  Calycanthus occidentalis Marion Ownbey, Ruth Ownbey 1938-7-9 1700 Napa 6 miles northeast of Napa. Comment
  RSA602914  Calycanthus occidentalis Joseph A. Ewan 1934-4-30 8850 Napa Near White Cottages below Pope Valley. Comment
  SBBG2303  Calycanthus occidentalis H. E. Cott 1949-5-22 A- 127 Napa St Hwy 37, ca. 15 mi N of Napa Comment
  UCD151050  Calycanthus occidentalis R. H. Miller 1949-5-8 49 Napa along Highway 37, about 13 miles northeast of Napa. Comment
  SEINET8690276 Image available Calycanthus occidentalis Marion Ownbey, Ruth P. Ownbey 1938-7-9 1700 Napa 6 mi NE of Napa 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
  JEPS31603  Calystegia collina subsp. collina W. L. Jepson 1938-5-24 18841 Napa Howell Mtn. Comment
  UCD164834  Calystegia collina subsp. collina Jake Ruygt 2012-6-2 5857 Napa Spanish Valley on south ridge. 350 Comment
  UCD48863  Calystegia purpurata K. Mogel; B. Pekin and M. Higley 2002-5-4 18 Napa Quail Ridge UC Reserve. At northern tip of ridge, N of the jct of West and East roads; ca. 300 ft. along the upper road that leads to the power lines; on side of road. 335 Comment
  UCD48869  Calystegia purpurata S. Murphy; K. Keck and K. Dyer 2002-5-5 13 Napa Quail Ridge UC Reserve, northern tip of ridge, ca. 500 m from intersection of West and East roads, N side of upper road leading to power lines and tip parcels, 4 m from edge of road. 388 Comment
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Aug 11 2021
  UC796481  Calystegia purpurata Ira L. Wiggins 1949-4-30 12080 Napa on rocky ridge along old toll road between Calistoga and Middletown; between Calistoga and Middletown Comment
  JEPS126103  Calystegia purpurata subsp. purpurata Jake Ruygt 1978-5-14 313 Napa 0.6 miles N of Oakville Cross Road on Silverado Trail. Yountville 7.5' Qua. Comment
  OBI15298  Calystegia purpurata subsp. purpurata R. L. Hoover 1968-4-20 56 Napa NE of jctn of Aetna Springs, Pope Valley, and Butts Cayn roads Comment
  UCD159937  Calystegia purpurata subsp. purpurata 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
  UCD48871  Calystegia purpurata subsp. purpurata E. Gottschalk; C. Brassey and L. Hamamoto 2001-4-28 7 Napa Quail Ridge Reserve, SE corner of Lake Berryessa, just W of Monticello Dam. Along West Rd., N of jct with South Decker Canyon Rd.; on a SW-facing slope on upslope of road. 237 Comment
  CAS-BOT-BC224342  Calystegia subacaulis subsp. subacaulis Rimo Bacigalupi 1928-6-20 1859 Napa Howell Mt 10 miles west of St Helena Comment
  HSC44000  Camissonia graciliflora Robert M. Specht 1977-4-14 662 Napa N side of Nevada Creek 512 Comment
  UCD167262  Camissoniopsis hirtella Jake Ruygt 2005-5-14 4842 Napa Ridge on west side of the mouth of Long Canyon. 426 Comment
  JEPS100899  Campanula griffinii Dean W. Taylor 1998-5-14 16436 Napa Asbestos Mine, Steele Canyon (southerly arm of Lake Berryessa) 301 Comment
  UCD69010  Campanula griffinii P. Rodriguez-Rojo 1997-4-20 Napa Lake Berryessa. Capell Creek. Base of barrens, on serpentine soils. UTM: 10SEN6659 155 Comment
  CAS-BOT-BC37117  Capsella bursa-pastoris Peter H. Raven 1953-4-2 5249 Napa Hills east of Imola. 121 Comment
  CAS-BOT-BC37119  Capsella bursa-pastoris R. E. Frenkel 1963-10-27 298 Napa In the vineyard north of Oakville Cross Road. Comment
  UCD18039  Capsella bursa-pastoris Ellen Dean; with Susan Harrison, Dean Enderlend, Joe Callizo 2000-3-18 590 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
  CAS-BOT-BC37583  Cardamine californica John H. Thomas 1955-5-21 5154 Napa Along State Highway number 128, about 4.5 miles south of Monticello. 167 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
  CAS-BOT-BC37590  Cardamine californica Peter H. Raven 1953-2-21 5194 Napa Steel Canyon. 213 Comment
  UCD17995  Cardamine californica Ellen Dean; Kate Mawdsley 2001-4-9 681 Napa Quail Ridge Reserve. SE corner of Lake Berryessa, just W of Monticello Dam. Along South Decker Canyon Rd., south of jct with Cutoff Rd. 243 Comment
  UCD74394  Cardamine californica Jake Ruygt 1992-4-5 2889 Napa Alston Park, Dry Creek Rd., Napa. 67 Comment
  JEPS106836  Cardamine californica var. integrifolia Jake Ruygt 1982-2-16 1099 Napa .3 miles north of Chimney Rock Golf Cour se on Silverado Trail 20 Comment
  HSC33343  Cardaria chalepensis William J. Ferlatte 1972-4-18 1678 Napa Hwy. 128 at mile post 18.19, 0.8 mi. W of junction with Berryessa-Knoxville Rd., N of road 305 Comment
  SEINET13331011 Image available Carduus nutans T. C. Fuller 1958-5-1 s.n. Napa Calistoga Comment
  OBI68596  Carduus pycnocephalus T. C. Fuller 1958-5-1 451 -58 Napa S facing slope, State hwy 53, 2.5 mi N Calistoga Comment
  RSA156058  Carduus pycnocephalus Peter H. Raven 1962-5-31 17922 Napa 3.8 miles north of junction of State Hwy. 37 with road to Fairfield Comment
  CAS-BOT-BC18182  Carex John H. Thomas 1969-4-29 15029 Napa Between road and railroad tracks at Yountville. Comment
  CDA11435  Carex amplifolia G. F. Hrusa, M. Tu 1995-5-6 12158 Napa North Coast Biodiversity Arena; In wet creek bed under shade of redwoods along Moores Creek in Las Posadas State Forest. Dense rhizomatous colony. Comment
  CDA37916  Carex barbarae D. G. Kelch 2010-5-6 10 .165 Napa Wooden Valley Road, about 5 km north of Napa/Solano county line, north of Rockville. Comment
  JEPS63517  Carex barbarae W. L. Jepson 1936-7-2 17664 Napa Angwin Meadow, Howell Mountain, Napa Range Comment
  JEPS75641  Carex barbarae W. L. Jepson 1936-5-30 17560 Napa Rutherford, Napa Valley Comment
  CDA10951  Carex bolanderi G. F. Hrusa, G. L. Stebbins 1994-4-8 11709 Napa North Coast Biodiversity Arena; Las Posadas State Forest. On moist rocks in streambed of upper Moores Creek. Deep shade under redwoods. Comment
  UCD161684  Carex bolanderi Jake Ruygt 2008-6-22 5352 Napa Aetna Mine Road at James Creek. 307 Comment
  CAS-BOT-BC18905  Carex densa Elsa G. Ruckert 1960-4-29 126 Napa Pond, 300 yards from house, 6495 Dry Creek Road. 365 Comment
  CAS-BOT-BC35075  Carex densa Peter H. Raven 1951-6-24 3017 Napa Brown's Valley. 91 Comment
  UCD161334  Carex densa Jake Ruygt 1982-4-25 1204 Napa Large meadow at base of Swartz Canyon. (Coordinates estimated by label maker at UC Davis). 243 Comment
  CAS-BOT-BC35071  Carex densa Peter H. Raven 1951-6-21 3074 Napa Wooden Valley Grade. 304 Comment
  JEPS121350  Carex dudleyi Jake Ruygt 2006-4-15 4980 Napa Highway 29, about 0.5 mi. south of Lincoln Ave., Calistoga. Comment
  UCD161635  Carex globosa Jake Ruygt 2005-4-4 4742 Napa Mt. St. Helena, Highway 29 at Old Toll Road. (Coordinates converted from UTM data by label maker.) 472 Comment
  CAS-BOT-BC32124  Carex multicaulis Peter H. Raven 1951-5-26 2865 Napa Lokaya Lodge 411 Comment
  CAS-BOT-BC119512  Carex nudata Ella D. Cantelow 1939-4-8 2501 Napa 3.5 mi NW of Knoxville. Comment
  JEPS121337  Carex nudata Jake Ruygt 1993-4-3 3179 Napa Little Bear Valley, along drainage leading in from the W. Comment
  RSA0011231  Carex nudata Lyman Benson 1930-3-31 35 Napa Town: Middletown (Lake Co); Mt. Range: N Coast; Mt. St. Helena at Lake Co. line. 518 Comment
  CHSC83353  Carex praegracilis L. P. Janeway; B. Castro 2002-5-12 7530 Napa Inner North Coast Ranges. Small meadow/springs along Pocock Creek just upstream of the dirt road from Devilhead Road. 506 Comment
  JEPS121328  Carex praegracilis Jake Ruygt 1996-5-14 3700 Napa White Cliff Springs; Elder Valley; (Sabini property). Comment
  UCD161577  Carex praegracilis Jake Ruygt 2007-4-10 5142 -b Napa Linda Falls / land trust property, Conn Creek. 445 Comment
  UCD161695  Carex praegracilis Jake Ruygt 2010-4-19 5511 Napa 0.4 mile south of Bale Mill, east side of Highway 29. 85 Comment
  UCD140839  Carex serratodens Beecher Crampton 1957-4-22 3942 Napa above Capell Creek, north end of Capell Valley, along State Highway 128. Comment
  RSA98669  Carex serratodens Peter H. Raven 1951-5-26 2873 Napa Butts Canyon. 244 Comment
  UCD141172  Carex subfusca L. S. Rose 1935-6-4 s.n. Napa Mt. Helena. Comment
  CAS-BOT-BC115551  Carex tumulicola Peter H. Raven 1951-6-26 3093 Napa Cappell Valley to Wooden Valley. 274 Comment
  UCD148091  Carthamus lanatus Jake Ruygt 2001-7-2 4317 Napa East of Lower Chiles Valley Rd. on Sage Canyon Rd. (Hwy 128) 155 Comment
  CAS-BOT-BC248977  Castilleja John Thomas Howell 1931-4-2 6095 Napa 10 miles east of Napa on road to Monticello, Napa Range Comment
  UCD49258  Castilleja affinis Kook-Hyun Chung 2001-4-28 5 Napa Quail Ridge Reserve; SE corner of Lake Berryessa, just W of Monticello Dam; along West Rd., ca. 0.45 miles (2400 ft.) NW of jct with South Decker Canyon Rd.; downslope of road ca. 20 m. 242 Comment
  CAS-BOT-BC249080  Castilleja affinis John Thomas Howell 1931-4-2 6095 Napa 10 mi. east of Napa on road to Monticello, Napa Range Comment
  JEPS25049  Castilleja affinis subsp. affinis J. P. Tracy 1899-6-26 371 Napa 32 mi e Angwin's; Howell Mountain, Head of Moores Creek 365 Comment
  JEPS8681  Castilleja affinis subsp. affinis W. L. Jepson 1897-4-30 21364 Napa sw of Calistoga (Rebecca Grade); Upper Napa Valley Comment
  SEINET4392935  Castilleja affinis subsp. neglecta Laney Widener 2013-1 Napa Comment
  JEPS122742  Castilleja ambigua var. meadii Jake Ruygt 2011-5-28 5796 Napa West of Atlas Peak Road, 0.6 mi SW of Foss Valley. Quad: Yountville. Comment
  UCD67493  Castilleja applegatei subsp. martinii D. Sanchez-Mata 1996-3-26 s.n. Napa Putah Creek. Lake Berryessa. 350 Comment
  JEPS4833  Castilleja applegatei subsp. martinii Rimo Bacigalupi with James R. Sweeney''Rimo Bacigalupi (with James R. Sweeney) 1953-5-26 4129 Napa Exactly 1 mile south of summit (St. Helena summit) of State Highway no. 29. Comment
  JEPS62590  Castilleja applegatei subsp. martinii T. I. Chuang with Fei-Mei Chuang 1970-7-25 6832 Napa 4.8 mi s Napa-Lake County line (on Highway 29) Comment
  UC199390  Castilleja applegatei subsp. martinii H. P. Chandler 1907-5-14 7580 Napa White Sulphur Springs; St. Helena Comment
  UCD122290  Castilleja applegatei subsp. martinii Robert Kehlor 1951-4-28 39 Napa In Putah Canyon above Recreation Beach, 10 miles west of Winters. Comment
  JEPS110667  Castilleja attenuata Jake Ruygt 1977-5-1 207 Napa east of east end Westgate Dr., Silverado Country Club 198 Comment
  JEPS74864  Castilleja attenuata T. I. and F. M. Chuang 1975-5-4 7505 Napa 5.7 mi e Pope Valley Comment
  UC1301192  Castilleja attenuata Helen K. Sharsmith 1963-4-20 5335 Napa Mt. Atlas; San Francisco Bay Region 609 Comment
  UCD116985  Castilleja attenuata Jillian Howard; Plant Biology 102 Collectors 2012-4-29 6 Napa Las Posadas State Experimental Forest. 0.1 miles NE of fire station, north side of dirt road. 518 Comment
  UCD148788  Castilleja attenuata Ellen Dean; Diana Hickson 2014-4-29 8096 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 603 Comment
  JEPS86222  Castilleja attenuata L. R. Heckard 1970-5-4 2448 Napa ca 10 mi n Vallejo (on n side of Kelly Rd, 0.5 mi n of CA Hwy 12, near junction of Hwy 12 and Hwy 29) Comment
  JEPS110628  Castilleja densiflora subsp. densiflora Jake Ruygt 1978-5-14 309 Napa .3 mile south of Oak Knoll Ave. on Silverado Trail 19 Comment
  UCD122405  Castilleja exserta H. Popenoe 1949-4-17 11 Napa Putah Canyon, 8 miles west of Winters. Comment
  JEPS10340  Castilleja exserta subsp. exserta W. L. Jepson 1915-4-13 5307 Napa Howell Mt. 609 Comment
  UCD122551  Castilleja foliolosa R. L. Smith 1948-5-8 s.n. Napa 6 miles north of Aetna Springs, Pope Valley. Comment
  JEPS86591  Castilleja minor subsp. spiralis L. R. Heckard with Jake Ruygt 1987-5-10 6659 Napa ca 0.25 mi ne Quarry (ne of Vallejo); American Canyon Ridge Comment
  UC1537565  Castilleja minor subsp. spiralis Gordon H. True Jr. 1937-7-30 825 Napa near Aetna Springs 365 Comment
  UC1238994  Castilleja minor subsp. spiralis Freed W. Hoffman 1946-8-21 869 Napa near Morgan Valley (on the Knoxville Road, Hunting Creek, Napa-Lake county line); North Coast Ranges, Hunting Creek Comment
  JEPS11160  Castilleja rubicundula subsp. lithospermoides Rachael Wilcox 1944-5-9 Napa Conn Valley Comment
  JEPS10645  Castilleja rubicundula subsp. lithospermoides C. F. Sonne Apr 1887 Napa Comment
  SBBG7065  Castilleja rubicundula subsp. lithospermoides H. and M. Dearing 1939-5-3 3273 Napa Napa County [no specific locality] Comment
  JEPS110637  Castilleja rubicundula subsp. rubicundula Jake Ruygt 2007-5-29 2194 Napa Cedar Valley 597 Comment
  UCD47950  Caulanthus lasiophyllus J. Pierner; S. Burgess, A. Hufton, A. Ryan, and B. Takahashi 2000-4-29 15 Napa Yolo Co/Napa Co line; McLaughlin Reserve, 1 mile (as the crow flies) N of old town of Knoxville. 640 Comment
  SBBG122273  Ceanothus confusus D. O. Burge 2008-5-31 1005 b Napa Spring Mtn Rd near small reservor at BM 626, 1.7 rd mi W of intersection with Madrona Ave, York Crk, Mayacmas Mtns 200 Comment
  UC1607873  Ceanothus cuneatus C. G. Nast 1936-3-27 57 Napa Berryessa Valley Comment
  UCD95690  Ceanothus cuneatus Ellen Dean; with Clare Loughran 2011-5-20 7036 Napa On the border of Sonoma County. Private property at 4028 Spring Mountain Road. West of the town of St. Helena. 605 Comment
  UC18283  Ceanothus cuneatus var. cuneatus Willis L. Jepson 1893-4-25 Napa trail to Caux's cabin. Napa River Basin Comment
  UC483312  Ceanothus cuneatus var. cuneatus Ira L. Wiggins 1932-3-12 5766 Napa hillside between Franz Valley and Calistoga Comment
  CAS-BOT-BC49794  Ceanothus divergens Carl B. Wolf 1928-5-4 1854 Napa Mt. St. Helena Comment
  CAS-BOT-BC64431  Ceanothus divergens L. R. Abrams 1928-5-4 12270 Napa Near summit of Mt. St. Helena. Comment
  CAS-BOT-BC64435  Ceanothus divergens Milo S. Baker s.n. Napa Franz Valley, about 5 mi. w. of Callistoga. Comment
  SEINET12211205  Ceanothus divergens W. Knight, Schmidt, C. 1987-1 6105 Napa Kortum Canyon Rd. 1-1 1/2 mi from Sharpe Rd Comment
  SEINET12211279  Ceanothus divergens W. Knight, Schmidt, C. 1987-1 6058 Napa Kortum Canyon Road 274 Comment
  RSA261717  Ceanothus foliosus Katherine Brandegee 1889-04 s.n. Napa Mt St. Helena Comment
  UC338441  Ceanothus foliosus Lemmon Napa Calistoga Comment
  UCD73844  Ceanothus foliosus Ellen Dean; S. Rae 2008-5-21 4979 Napa Hills to the west of Hwy. 29. Private property accessed by Diamond Mountain Road. Canyon runnning east to west. 244 Comment
  CAS-BOT-BC50879  Ceanothus foliosus var. foliosus Peter H. Raven 1951-5-26 2891 Napa Howell Mtn. to St. Helena 243 Comment
  CAS-BOT-BC50917  Ceanothus foliosus var. foliosus Lewis S. Rose 1964-4-2 64018 Napa 2 mi. sw. of Angwin 243 Comment
  JEPS110717  Ceanothus foliosus var. foliosus Jake Ruygt 1976-5-6 59 Napa 4.3 miles NE of Westgate Dr. on Atlas Peak Rd. 408 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
  UCD112145  Ceanothus foliosus var. foliosus Lewis S. Rose 1964-4-2 64018 Napa 2 miles SW of Angwin. Comment
  RSA10662  Ceanothus foliosus var. vineatus Carl B. Wolf 1928-5-3 s.n. Napa Summit of Mount St. Helena Grade, N of Calistoga Comment
  CAS-BOT-BC474706  Ceanothus integerrimus 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-BC50792  Ceanothus integerrimus Brandegee 1890-6-1 21 Napa Toll House, Mt. St. Helena Comment
  UCD170257  Ceanothus integerrimus D. O. Burge 2016-10-22 2181 Napa Roadside on Butts Canyon Road. 300 Comment
  JEPS129028  Ceanothus jepsonii Jake Ruygt 2016-6-6 6277 Napa Okin Ranch, Chiles Valley. St. Helena 7.5' Quad. Comment
  UCD112065  Ceanothus jepsonii D. Sanchez-Mata 1996-6-22 s.n. Napa Capell Valley. 380 Comment
  RSA0056202  Ceanothus jepsonii var. purpureus Keith E. Hoffmaster 1946-3-23 1226 Napa Napa range, near summit of Napa-Monticello road. Comment
  CAS-BOT-BC51557  Ceanothus oliganthus var. sorediatus Lewis S. Rose 1955-4-4 55043 Napa Conn Lake, 5 mi. E. of Rutherford 152 Comment
  HSC44021  Ceanothus oliganthus var. sorediatus Robert M. Specht 1977-4-18 681 Napa Along N side of Develhead Rd. 451 Comment
  JEPS110859  Ceanothus oliganthus var. sorediatus Jake Ruygt 1976-4-29 34 Napa .6 mile SW of Napa-Solano Co. line on HWY 128 164 Comment
  UCD37180  Ceanothus oliganthus var. sorediatus Beecher Crampton 1958-4-22 4740 Napa Napa County, Vaca Mountains, Markley Canyon, Highway 128. Comment
  CAS-BOT-BC53176  Ceanothus parryi Elsa G. Ruckert 1960-4-29 122 Napa Dry Creek Road, 1/4 mile n. of junction with Wall Road 365 Comment
  CAS-BOT-BC53181  Ceanothus parryi Brandegee 1890-4-1 20 Napa Toll House, Mt. St. Helena Comment
  CAS-BOT-BC53219  Ceanothus parryi Alice Eastwood 1923-5-9 11745 Napa Calistoga Comment
  JEPS42409  Ceanothus parryi W. L. Jepson 1924-4-27 10372 Napa Toll House Mt. St. Helena Comment
  LA43650  Ceanothus parryi Joseph Andorfer Ewan; 1937-5-23 10329 Napa Mt. St. Helena, Mt. St. Helena summit trail, near Stevenson Tablet Comment
  OBI10390  Ceanothus parryi Milo S. Baker 1934-4-12 7723 Napa E slope of Mt St. Helena along hwy Comment
  UC1299537  Ceanothus parryi Freed W. Hoffman 1947-3-20 941 Napa East side of Napa Range on Trinity Road Comment
  UC80041  Ceanothus parryi Katharine Brandegee June 1889 21 Napa Toll House , Toll House (Mt. St. Helena) Comment
  UCD73852  Ceanothus parryi Ellen Dean; S. Rae 2008-5-21 4987 Napa Hills to the west of Hwy. 29. Private property accessed by Diamond Mountain Road. Canyon runnning east to west. 196 Comment
  RSA10636  Ceanothus prostratus var. occidentalis Carl B. Wolf 1928-5-4 1854 Napa Upper slopes of Mount St. Helena. Comment
  CAS-BOT-BC52177  Ceanothus purpureus Eva Buxton 2001-4-24 1105 Napa Ca. 1 mi. S of Lake Hennessey Comment
  CAS-BOT-BC52179  Ceanothus purpureus Willis L. Jepson 1896-2-22 s.n. Napa New Eden, Howell Mt. Comment
  CAS-BOT-BC52182  Ceanothus purpureus Milo S. Baker 1942-3-1 10190 Napa Northeast of town of St. Helena on road to Pacific Union College Comment
  CAS-BOT-BC52192  Ceanothus purpureus s.n. Napa unspecified Comment
  CDA11160  Ceanothus purpureus G. F. Hrusa, G. L. Stebbins, J. Callizo 1993-12-3 11572 Napa North Coast Biodiversity Arena; Howell Mtn., W face, 2-3 mi. W of Angwin, alongside Howell Mtn Rd. Comment
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Jul 28 2008
  JEPS42096  Ceanothus purpureus Willis L. Jepson 1893-4-28 14027 Napa Milliken Creek, gorge N of Mt. George Napa River Basin Comment
  RSA19031  Ceanothus purpureus Alice Eastwood, John T. Howell 1937-4-4 3832 Napa Wooden Valley Grade Comment
  RSA755230  Ceanothus purpureus Dylan O. Burge 2007-5-4 DOB 904 c Napa Wooden Grade, NE of Mount George, roadside on Monticello Road (SR 121), 3.3 road miles E of Atlas Peak Road or 2.3 road miles W of Wooden Valley Road, at mile marker 13.88, 9.28 km 46 degrees True ENE of Napa. 360 Comment
  SD143477  Ceanothus purpureus M. Van Rensselaer 1938-4-26 Napa Wooden Valley Grade Comment
  UC870639  Ceanothus purpureus Lewis S. Rose Apr 1939 39069 Napa 4 mi NE of Napa 198 Comment
  UC870643  Ceanothus purpureus Milo S. Baker 1931-2-8 5031 Napa Five miles fron Napa on Monticello road. Comment
  UCD123869  Ceanothus purpureus D. O. Burge 2007-5-4 905 e Napa Atlas Road, at roadside 5.7 road miles (9.1 km) north of intersection with Monticello Road (SR 121), east of Milliken Canyon (Milliken Reservoir watershed), 11.4 km 20 deg. (True) NNE of Napa. 410 Comment
  UCD73418  Ceanothus purpureus Ayzik Solomeshch; Stephen Rae 2007-7-8 s. n. Napa Brend-Morgan property, ca. 3 miles northeast of city of Napa. 215 Comment
  UCR25296  Centaurea calcitrapa John C. Roos 1957-6-28 6616 Napa Napa Comment
  UCD18004  Centaurea melitensis Ellen Dean; with Plant Biology 102 class 2001-4-28 735 Napa Quail Ridge Reserve. SE corner of Lake Berryessa, just W of Monticello Dam. Downslope of West Rd., ca. 2400 feet as the crow flies NW of jct. with South Decker Canyon Rd. Along old road that leads NW and downslope along a ridge. 242 Comment
  UCD83403  Centaurium tenuiflorum Jake Ruygt 1998-7-6 4069 Napa Silverado Trail, just N of Rector Reservoir. 64 Comment
  JEPS46944  Centaurium trichanthum W. L. Jepson 1916-8-6 6836 Napa Howell Mt. Comment
  UC22689  Centaurium trichanthum Willis L. Jepson 1895-1 Napa Calistoga Comment
  JEPS46940  Centaurium trichanthum W. L. Jepson 1930-10-19 15699 Napa Butts Canyon, ne Napa Co Butts Canyon Comment
  UC1034623  Centromadia fitchii Milo S. Baker 1932-5-8 5903 Napa near School House; Mill Creek Canyon Comment
  JEPS38176  Centromadia parryi subsp. parryi Willis L. Jepson 1894-7-19 Napa Upper Napa Valley Napa River Basin Comment
  UC894333  Centromadia parryi subsp. parryi Milo S. Baker 1931-7-9 5348 Napa flat near Calistoga Geyser Comment
  UC913083  Centromadia parryi subsp. parryi David D. Keck 1933-11-10 2715 Napa Calistoga Comment
  CAS-BOT-BC279252  Centromadia pungens subsp. pungens Peter H. Raven 1951-9-9 3898 Napa Near Slaughterhouse Pt., Napa River 0 Comment
  UC523517  Centromadia pungens subsp. pungens David D. Keck 1933-11-10 2725 Napa 6 mi s of Napa Comment
  JEPS112624  Centunculus minimus Jake Ruygt 1995-6-5 3486 b Napa Taylor driveway, about 1.5 miles south of Lake Hennessey. 411 Comment
  JEPS106731  Cerastium glomeratum Jake Ruygt 1982-3-2 1110 Napa north of HWY 12 near Huichica Creek 128 Comment
  JEPS51345  Cerastium glomeratum W. L. Jepson 1900-3-10 529 Napa near St. Helena Comment
  JEPS51353  Cerastium glomeratum W. L. Jepson 1921-5-6 9178 Napa Calistoga 109 Comment
  JEPS51366  Cerastium glomeratum W. L. Jepson 1910-3-28 4028 Napa Rebecca Ranch Grade s.w. of Calistoga Comment
  CAS-BOT-BC388230  Cerastium glomeratum Peter H. Raven 1953-4-2 5233 Napa Imola 60 Comment
  UCD98040  Cerastium glomeratum K. Esau 1939-5-1 s.n. Napa Napa Valley. Comment
  LA45606  Cercis occidentalis Ethel Crum; 1937-8-8 1956 Napa Putah Creek Canyon, 7 mi. SE of Monticello Comment
  UCD145181  Cercis occidentalis Daphne K. Christopher; Hannah Stevens, Mark Bibbo 2003-4-11 136 Napa UC Davis, Stebbins Cold Canyon Reserve. Main trail through canyon to old homesite foundation. 138 Comment
  SEINET6331974  Cercocarpus betuloides R. R. Halse 2013-3-27 8754 Napa Along State Hwy. 128 about 5.3 miles east of its junction with State Hwy. 121 at Moskowite Corners. 239 Comment
  UCD49136  Cercocarpus betuloides S. Murphy; K. Keck and K. Dyer 2002-5-5 8 Napa Quail Ridge UC Reserve, northern tip of ridge, ca. 300 m from intersection of West and East roads, N side of upper road leading to power lines and tip parcels. 388 Comment
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Jan 14 2009
  SEINET5586406  Cercocarpus betuloides var. betuloides Richard R. Halse 2013-1 8754 Napa Along State Hwy. 128 ca. 5.3 miles east of its junction with State Hwy. 121 at Moskowite Corners. 239 Comment
  UC12148  Cercocarpus betuloides var. betuloides Mrs. D. O. Hunt 1899-3-6 Napa St. Helena 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
  UC2029551  Cercocarpus betuloides var. betuloides Richard R. Halse 2013-3-27 8754 Napa Along State Highway 128, ca. 5.3 miles eastt of its junction with State Highway 121 at Moskowite Corners Comment
  UC419739  Cercocarpus betuloides var. betuloides Mrs. H. P. Bracelin 1930-7-13 26 Napa s slope of Mount St. Helena Comment
  SEINET11248330 Image available Cercocarpus montanus J. M. Tucker 1951-3-28 2066 Napa South side of Howell Mountain, 5.6 miles north of St. Helena Comment
  JEPS106929  Chaenactis glabriuscula var. heterocarpha Jake Ruygt 1981-5-6 1014 Napa Zim Zim Falls 390 Comment
  POM203306  Chaenactis glabriuscula var. heterocarpha J. T. Howell 1931-4-19 6459 Napa Conn Valley. Comment
  UCD47912  Chaenactis glabriuscula var. heterocarpha A. Laffin; A. Randallm S. Holck 2002-4-13 4 Napa Napa Co, McLaughlin UC Reserve. North of Knoxville-Berryessa Road. Ca. 0.5 airline mile WSW of old town Knoxville. 437 Comment
  UCD148101  Chamaemelum fuscatum Jake Ruygt 1995-3-29 3411 Napa Lower Chiles Valley Road, across from Calochortus uniflorus site. 277 Comment
  CDA34657  Chamaesyce serpillifolia subsp. serpillifolia L. Ahart 2009-10-12 16437 Napa Below the high water line of Lake Berryessa, along Capell Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. Comment
  UC1925871  Chamaesyce serpyllifolia Ethel Crum Oct 1930 912 Napa Conn Creek Road, Yountville to Pope Valley. Comment
  UC615139  Chamaesyce serpyllifolia Beryl O. Schreiber 1936-9-20 2356 Napa 5 mi s Reiff 762 Comment
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Jun 14 2013
  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
  UC1093986  Cheilanthes intertexta Herbert L. Mason 1925-1-22 1209 Napa Wooden Valley Grade Comment
  CAS-BOT-BC68161  Cheilanthes intertexta Peter H. Raven; G. L. Stebbins, Jr. 1953-4-19 5340 Napa North side of Pope Creek between Samuels Springs and Walters Springs 243 Comment
  CDA34674  Chenopodium album L. Ahart 2009-10-27 16483 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. Comment
  JEPS106821  Chenopodium botrys Jake Ruygt 1981-5-21 1035 Napa Putah Creek just north of Berryessa Estates 134 Comment
  UC924253  Chenopodium multifidum H. S. Reed 1948-11-5 2028 Napa 2 mi n Monticello; Berryessa Valley Comment
  UCD48272  Chlorogalum pomeridianum var. pomeridianum S. E. Ratay; M. Disney,J. Westbrook,R. Wolfson,A. Houser,S. Wathen 2000-4-22 26 Napa Napa Co., McLaughlin Reserve, Old Knoxville Townsite, 0.10 miles north of Berryessa-Knoxville Rd along Old Knoxville Rd. 396 Comment
  CDA18829  Chondrilla juncea O. Dannenberg 1999-6-22 PDR 1103331 Napa Hwy 29 Yountville overpass, Yountville. 0 Comment
  JEPS110855  Chorizanthe membranacea Jake Ruygt 1986-5-10 1763 Napa Devil's Canyon above falls 597 Comment
  UCR24252  Chorizanthe membranacea John C. Roos 1939-5-6 294 Napa North Coast Range, Pacific Union College, Bell's Canyon near Three Peaks 862 Comment
  CAS-BOT-BC36451  Chrysolepis chrysophylla var. minor H. E. Mc. Minn 1922-3-27 53 Napa Mt. St. Helena 1066 Comment
  CAS-BOT-BC285218  Cichorium intybus J. H. Thomas 1960-8-29 8837 Napa About 1 mile north of Calistoga along highway number 53 Comment
  UCD127359  Cicuta douglasii Lloyd Harwood 1972-11-6 s.n. Napa Wild Horse Valley Ranch. Comment
  CAS-BOT-BC278018  Cirsium cymosum Peter H. Raven 1952-6-28 4204 A Napa Conn Valley 121 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
  CDA1304  Cirsium occidentale var. californicum G. D. Barbe, M. Foskett, D. Massey 1977-5-5 2254 -A Napa 2.7 km. west of Oakville; Oakville Grade, roadside cut west of summit. Comment
  CAS-BOT-BC286571  Cirsium occidentale var. venustum Alice Eastwood; John Thomas Howell 1939-6-11 7426 Napa Hood Mt. Range sw. of Oakville Comment
  JEPS59276  Cirsium occidentale var. venustum W. L. Jepson 1923-4-29 9890 Napa St. Helena Comment
  UC1301212  Cirsium occidentale var. venustum Helen K. Sharsmith 1962-6-3 5116 a Napa near Angwin (w slope of Mount Howell); San Francisco Bay Region, Mount Howell 487 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
  UCD21496  Clarkia affinis Jake Ruygt; Louise Vincenzio, Land Trust of Napa County 2002-4-22 4398 Napa Quail Ridge Reserve. 249 Comment
  JEPS110769  Clarkia amoena subsp. huntiana Jake Ruygt 1987-6-6 2037 Napa Redwood Rd. at Mt. Veeder Rd. 109 Comment
  UCD67522  Clarkia concinna D. Sanchez-Mata 1996-6-15 s.n. Napa Lake Berryessa. Capell Valley. 320 Comment
  HSC64520  Clarkia concinna subsp. concinna J. P. Smith, J. O. Sawyer 1970-5-17 3772 Napa 3 mi. S of Pope Valley Comment
  POM38096  Clarkia concinna subsp. concinna Marcus E. Jones 1881-7-6 s.n. Napa St. Helena. Comment
  POM271463  Clarkia concinna subsp. concinna Lyman Benson 1935-5-19 6662 Napa S. Base Mount St. Helena, CA Hwy 29. Mayacamas Mt. range, Napa River watershed 213 Comment
  RSA209534  Clarkia concinna subsp. concinna Betty H. Johnson 1958-6-8 592 Napa Near St. Helena River, at the Mill House , 6.4 miles SW of Middletown Comment
  JEPS43693  Clarkia gracilis subsp. gracilis Joseph P. Tracy 1933-6-2 12490 Napa 5 mi e Angwin's (on hills at head of Moore's Creek); Howell Mountain 457 Comment
  POM32044  Clarkia gracilis subsp. gracilis Katherine Brandegee 1909-6-1 s.n. Napa Pope Valley Grade. Comment
  JEPS110765  Clarkia gracilis subsp. sonomensis Jake Ruygt 1976-5-18 90 Napa 1.4 miles west of Madronna St. on Spring Mountain Rd. 152 Comment
Read comments
Aug 15 2010
  JEPS120373  Clarkia gracilis subsp. sonomensis Jake Ruygt 1998-6-13 4025 Napa Redwood Road at Mt. Veeder Road. Napa 7.5' Quad. 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
  UCD164689  Clarkia gracilis subsp. tracyi L. P. Thibault 1995-6-2 61 Napa West side of Lower Chiles Valley Road. 0.25 miles northwest of Highway 128. 300 Comment
  JEPS110732  Clarkia purpurea subsp. quadrivulnera Jake Ruygt 1998-6-24 4052 Napa Rocky Ridge, east of Apple Tree Canyon. 676 Comment
  JEPS110734  Clarkia purpurea subsp. quadrivulnera Jake Ruygt 1990-6-23 2598 Napa White Creek, Wild Horse Valley Ranch 402 Comment
  UC1563877  Clarkia purpurea subsp. quadrivulnera Barbara Ertter with Annetta Carter 1989-5-28 8503 Napa 4.7 mi s Knoxville tunnel (Berryessa-Knoxville Road, n of Lake Berryessa); Eticuera Creek 304 Comment
  UCD48059  Clarkia purpurea subsp. quadrivulnera M. K. Voigt; E. Sweeney, and M. Miller 2002-4-13 8 Napa McLaughlin UC Reserve. SW of old town of Knoxville, 350 m N of Knoxville-Berryessa Rd. 426 Comment
  CAS-BOT-BC163687  Clarkia purpurea subsp. quadrivulnera Betty H. Johnson 1958-6-15 634 Napa 1/2 mi. above Mt. Mill House, 6.4 mi. S-W. of Middletown Comment
  CAS-BOT-BC163689  Clarkia purpurea subsp. quadrivulnera Peter H. Raven 1951-6-24 3032 Napa Valley floor e. of Napa 60 Comment
  CAS-BOT-BC163692  Clarkia purpurea subsp. quadrivulnera M. S. Jussel 1937-5-23 s.n. Napa Mt. St. Helena Comment
  CAS-BOT-BC163825  Clarkia purpurea subsp. quadrivulnera Dr. E Goodman 1921-5-23 s.n. Napa Mt. St. Helena Comment
  JEPS43716  Clarkia purpurea subsp. quadrivulnera W. L. Jepson 1894-7-19 Napa near Schoolhouse; Mt. St. Helena Comment
  JEPS43587  Clarkia purpurea subsp. viminea W. L. Jepson 1936-7-3 17635 Napa below Four Corners; Napa Range, Howell Mt. Comment
  RSA292921  Clarkia unguiculata Reino Alava 1957-5-30 979 Napa Along State Highway No. 128 at the Napa - Solano county line Comment
  UCD105039  Clarkia unguiculata M. Ensign 1943-5-28 305 Napa 10 miles N of Monticello on road to Lower Lake. Comment
  CAS-BOT-BC439133  Claytonia exigua subsp. exigua H. L. Mason 1926-3-14 2716 Napa Mount St. Helena Comment
  HSC17749  Claytonia gypsophiloides Elsa Kraeger 1926-3-28 Napa 0.5 mi. from Mt. St. Helena Inn Comment
  UC634937  Claytonia gypsophiloides H. L. Mason 1926-3-3 2716 Napa Mt. St. Helena Comment
  JEPS112601  Claytonia parviflora subsp. parviflora Jake Ruygt 1992-3-10 2850 Napa Johnson's Meadow ; Wild Horse Valley Ranch 426 Comment
  UCD168556  Claytonia parviflora subsp. parviflora 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
  JEPS43304  Claytonia perfoliata subsp. perfoliata W. L. Jepson 1893-3-13 Napa St. Helena Comment
  RSA195387  Claytonia rubra Gilbert Muth 1967-4-9 609 Napa Bateman Creek. 610 Comment
  CAS-BOT-BC92682  Clematis ligusticifolia H. E. McMinn 296 Napa Upper Pope Canyon about 6 miles north of Aetna Springs on road to Middleton. Comment
  JEPS55205  Clematis ligusticifolia Alice King July 1919 Napa Mt. St. Helena, Van Ness Ranch Comment
  CHSC22322  Collinsia grandiflora Robert A. Schlising; Greg Bos 1963-3-30 2473 Napa Coast Ranges. Pope Valley Road, 5.8 miles north of junction with Lower Chiles Valley Road. Comment
  JEPS112524  Collinsia greenei Jake Ruygt 1998-5-25 4000 Napa Capell Canyon 188 Comment
  CHSC108730  Collinsia heterophylla B. Castro; L. P. Janeway 2002-5-12 1358 Napa Inner North Coast Ranges. Small soggy meadow/springs along Pocock Creek just upstream of the dirt road from Devilhead Road. 505 Comment
  RSA187487  Collinsia heterophylla John H. Thomas 1955-5-21 5169 Napa Near State Highway No. 128 and Capell Creek, about 12 miles east of St. Helena. 244 Comment
  JEPS112522  Collinsia sparsiflora var. arvensis Jake Ruygt 1996-3-23 3530 Napa .3 mile from Pope Canyon Road on Hardin Road, near airstrip. 184 Comment
  UC147869  Collinsia sparsiflora var. arvensis J. P. Tracy 1902-5-18 1533 Napa 3-4 mi e Angwin (head Moore's Creek); Head Moore's Creek, Howell Mountain 518 Comment
  UC903162  Collinsia sparsiflora var. arvensis Ethel Crum 1937-4-19 1778 Napa 6 mi n of Napa (Napa Range, Mount George); Napa Range, Mount George 304 Comment
  UCR17489  Collinsia sparsiflora var. arvensis E. Turula 1975-3-29 78 Napa Soda Canyon Road, 4.2 mi. east of Silverado Trail 213 Comment
  POM15100  Collinsia sparsiflora var. arvensis C. F. Baker 1903-4-19 1984 Napa Calistoga. Comment
  POM182734  Collinsia sparsiflora var. arvensis D. D. Keck 1931-4-2 1051 Napa 4 miles S of Monticello, eastern Napa County. Comment
  RSA505375  Collinsia sparsiflora var. arvensis R. C. Bacigalupi, Jon Dawson 1955-4-25 4844 Napa Along Conn Creek road, about 0.75 mile below (w. of) Lake Hennessey Dam. 79 Comment
  JEPS112529  Collinsia sparsiflora var. collina Jake Ruygt 1982-5-16 1268 Napa .2 mile south of Foss Valley on Atlas Peak Rd. 420 Comment
  UC1196825  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1933-4-30 12099 Napa 3-4 mi e Angwin (head of Moore's Creek, on hills); North Coast Ranges, Howell Mtn, Moore's Creek 396 Comment
  JEPS112525  Collinsia tinctoria Jake Ruygt 1987-6-6 2032 Napa Devil's Canyon near falls 548 Comment
  UC971708  Collomia diversifolia Herbert L. Mason 1948-5-9 13570 Napa on gravel bars of stream near head of canyon Butts Canyon Comment
Read comments
Sep 27 2012
  SEINET8729290 Image available Collomia diversifolia Herbert L. Mason 1948-1 13570 Napa Near head of Butts Canyon Comment
  UCD112237  Collomia heterophylla Christopher Mallek 2008-5-12 AS2- 7 Napa Aetna Springs. 668 Comment
  JEPS120436  Corallorhiza striata Jake Ruygt 1988-4-11 2140 Napa Newell Canyon. Comment
  JEPS20326  Cordylanthus pilosus subsp. pilosus Lewis S. Rose 1954-9-13 54115 Napa 1 mi w Calistoga 121 Comment
  JEPS62604  Cordylanthus pilosus subsp. pilosus T. I. Chuang with Fei-Mei Chuang 1970-8-25 6841 Napa 1 mi nw St. Helena (on US Hwy 29) Comment
  JEPS6809  Cordylanthus pilosus subsp. pilosus W. L. Jepson 1898-1-4 21347 Napa Howell Mt. Napa Range Comment
  JEPS69349  Cordylanthus pilosus subsp. pilosus T. I. Chuang, F. M. Chuang and Carl Chuang 1972-7-22 7073 Napa 2 mi n St. Helena (summit of route 29) Comment
  RSA537658  Cordylanthus pilosus subsp. pilosus T. I. Chuang, F. M. Chuang, Carl Chuang 1972-7-22 7073 Napa 2 mi. N. of St. Helena. Comment
  JEPS66520  Cordylanthus pringlei L. R. Heckard and T. I. Chuang 1971-8-16 2777 Napa along US Hwy 29 s Middletown (just across the Lake Co. line) 457 Comment
  OBI57117  Cordylanthus pringlei T. I. Chuang, Fei-Mei Chuang 1970-7-25 6831 Napa 0.9 mi N of Napa and Lake County line on US hwy 29 Comment
  OBI9573  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
  CAS-BOT-BC238222  Cordylanthus tenuis subsp. brunneus R. F. Hoover 1941-8-24 5571 Napa East side of Mt. St. Helena Comment
  UCD161330  Cornus glabrata Jake Ruygt 1980-6-21 931 Napa Van Ness Creek. (Coordinates estimated by label maker at UC Davis). Comment
  UCSB27482  Cornus nuttallii Havlik, Neil 1969-6-29 Napa Along Trout Creek; near State Highway 29 609 Comment
  UC127083  Corylus californica Harley P. Chandler Sep 7-14 1906 7156 Napa Alta Loma Ranch Howell Mountain 487 Comment
  CAS-BOT-BC180342  Corylus cornuta subsp. californica Alice Eastwood 1923-5-9 11742 Napa Calistoga 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
  POM41962  Cotula coronopifolia Marcus E. Jones 1924-4-24 s.n. Napa Napa. Comment
  JEPS106393  Crassula aquatica Jake Ruygt 1979-4-19 526 a Napa Suscol hill east of HWY 29 (221) 28 Comment
  UCD149722  Crassula connata Stephen P. Rae; Ayzik Solomeshch 2007-3-14 Napa Signorello Winery, 4500 Silverado Trail, ca. 1/4 km east of Silverado Trail. 65 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
  UCD121192  Crataegus monogyna Ellen Dean; G. Golden, C. Loughran, PLB 102 interns 2012-5-5 7364 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
  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
  UC1189969  Crocanthemum scoparium var. vulgare John H. Thomas 1955-5-21 5107 Napa about 6 mi from Napa (near State Highway 37, Sarco Creek drainage); Sarco Creek 243 Comment
  JEPS120402  Crocanthemum scoparium var. vulgare Jake Ruygt 1981-5-17 1027 Napa Mount Vaca Comment
  UCD59944  Crypsis schoenoides Beecher Crampton 1963-9-19 6898 Napa North end of Capell Valley, above Capell Creek, State Hwy. 128. Comment
  UCR146405  Crypsis schoenoides Beecher Crampton 1954-10-26 2300 Napa Inner North Coast Ranges, 4 miles east of Rutherford, Conn Reservoir 122 Comment
  SEINET4343822 Image available Crypsis schoenoides Barbara Ertter, Elizabeth Neese 1988-10-2 7958 Napa Lake Hennessey ca 15 airmiles NN of Napa, on Conn Creek in North Coast Ranges, S side Rt 128 across from spillway, roadside near seepage. 91 Comment
  SD180605  Cryptantha clevelandii var. dissita Beecher Crampton 1954-5-20 1929 Napa 8.0 miles southwest of Monticello, along highway 128. Comment
  SEINET4206988  Cryptantha clevelandii var. dissita Beecher Crampton 1954-5-20 1929 Napa 8 miles southwest of Monticello, along highway 128.; 0 Comment
  UCR141015  Cryptantha clevelandii var. dissita Beecher Crampton 1954-5-20 1929 Napa Inner North Coast Ranges, 8 miles southwest of Monticello, along highway 128 305 Comment
  UC857112  Cryptantha flaccida Joseph Andorfer Ewan 1934-4-30 8842 Napa 5 mi s Monticello (on Steel Canyon road) Comment
  UCD63863  Cryptantha hispidula Daniel Sanchez-Mata 2006-6-23 s.n. Napa Knoxville. Berryessa Knoxville Road from Morgan Valley Road. Knoxville Public Lands close to Hunting Creek. 650 Comment
  SD106148  Cryptantha intermedia W. L. Jepson 1938-5-25 18 861 Napa Bell Canyon, Howell Mountain, Napa Range 580 Comment
  UCD161233  Cryptantha microstachys Jake Ruygt 2002-4-1 4378 Napa Napa County : Blue Ridge north of Mays; flat. (Coordinates estimated by label maker at UC Davis). 487 Comment
  UCD161328  Cryptantha muricata Jake Ruygt 1980-5-13 884 Napa 3 miles south of Oakville Grade on Dry Creek Road. (Coordinates estimated by label maker at UC Davis). 182 Comment
  JEPS106880  Cryptantha torreyana Jake Ruygt 1998-6-20 4044 Napa On Palisades trail from RLSSP, east of Table Rock. 701 Comment
  JEPS39836  Cupressus lawsoniana W. L. Jepson Nov 29 1907-Nov 30 1907 2968 a Napa Cal. Nursery Co. St. Helena Comment
  CAS-BOT-BC80718  Cupressus macnabiana J. Clausen 1935-5-22 1062 Napa 15.9 mi. SE of Lower Lake on the Monticello road beyond the Napa Co. line Comment
  UCD110850  Cupressus macnabiana Christopher Mallek 2008-1 AS- 1 Napa Aetna Springs. 668 Comment
  RSA129445  Cupressus sargentii A. E. Wieslander 1934-2-25 371 Napa Calistoga - Middletown: 3 miles east of Mt. St. Helena 610 Comment
  RSA352387  Cupressus sargentii C. B. Wolf, E. R. Johnson 1934-10-16 6193 Napa Above Aetna Springs about 0.5 mile southwest of Quicksilver Mine 457 Comment
  RSA995  Cupressus sargentii J. T. Howell 1927-8-24 690 Napa Butts Valley, Napa Range Comment
  SEINET10531527  Cupressus sargentii Peter H. Raven 1965-5-16 Raven 20209 Napa Cedar Valley, vicinity of Knoxville. 610 Comment
  SEINET13289871 Image available Cupressus sargentii C. G. Pringle 1882-1 s.n. Napa near Calistoga Comment
  UCD147461  Cuscuta Ellen Dean; Diana Hickson 2014-4-29 8074 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 579 Comment
  UCD18110  Cuscuta californica K. Carpenter; with E. Dean and K. Chaney. 2000-8-11 47 Napa Napa County. Just south of the border with McLaughlin Reserve. Along Knoxville-Berryessa Rd, ca. 1.4 road miles south of intersection with dirt road leading to old town of Knoxville, SW side of road, along drainage leading into Knoxville Creek; there is an old homestead uphill from collection site. 371 Comment
  UCD170291  Cuscuta howelliana Daniel Potter; Ninh Khuu, Sarah Dohle, Casey Peters 2015-7-18 831 Napa Knoxville Wildlife Area, above and north of Nevada Creek. 637 Comment
  UCD170456  Cuscuta howelliana Daniel Potter; Ninh Khuu 2016-6-8 885 Napa Knoxville Wildlife Area, above and north of Nevada Creek. 600 Comment
  UCD170466  Cuscuta indecora var. indecora Daniel Potter; Ninh Khuu 2016-6-18 895 Napa Knoxville Wildlife Area, upper Zim Zim Creek drainage east of Knoxville-Devilhead Road. 448 Comment
  JEPS116546  Cuscuta occidentalis Jake Ruygt 1990-5-12 2540 Napa Wooden Valley, north of Wooden Valley School. Capell Valley 7.5' Quad. Comment
  POM180776  Cuscuta subinclusa J. T. Howell 1930-10-19 5628 Napa Five miles from Aetna Springs on Butts Canyon road to Middletown Comment
Read comments
Feb 4 2011
  UC129079  Cuscuta subinclusa Harley P. Chandler Sep 7 1906-Sep 14 1906 7124 Napa Alta Loma Ranch Howell Mountain 487 Comment
  JEPS47132  Cuscuta subinclusa W. L. Jepson 1930-10-19 15702 Napa Butts Canyon, ne Napa County Butts Canyon Comment
  JEPS39364  Cynoglossum grande Mary Pond 1915-4-18 Napa St. Helena Comment
  UCD95902  Cynoglossum grande Ellen Dean; with Clare Loughran 2011-5-20 7045 Napa On the border of Sonoma County. Private property at 4028 Spring Mountain Road. West of the town of St. Helena. 594 Comment
  UCD60134  Cynosurus cristatus John Thomas Howell 1943-6-20 18239 Napa Southwest of St. Helena. Comment
  CAS-BOT-BC114677  Cyperus eragrostis Peter H. Raven 1951-10-28 3964 Napa Oakville to Yountville 91 Comment
  CAS-BOT-BC114682  Cyperus eragrostis Elsa G. Ruckert 1960-5-22 158 Napa 6495 Dry Creek Road. Pond 300 yds SW of house. 365 Comment
  CAS-BOT-BC114679  Cyperus eragrostis Kate E. Phelps 1930-7-1 s.n. Napa Sanitarium Comment
  UC204265  Cyperus eragrostis A. D. E. Elmer July, 1903 4656 Napa Napa Comment
  SEINET4572024  Cyperus erythrorhizos Lowell Ahart 2009-10-12 16458 Napa Lake Berryessa, along Capell Creek NE of Rest Area, about 19 miles (air) west of Winters. 133 Comment
  UC1133517  Cyperus niger Beryl Schreiber 1938-9-25 2550 Napa Putah Creek Canyon, North Ranch Capay Quad., Putah Creek Canyon, North Ranch Comment
  UCD161533  Cyperus niger Jake Ruygt 1991-7-26 2800 Napa road from Johnson's Meadow to Wooden Valley Wild Horse Valley Ranch. 207 Comment
  JEPS115760  Cypselea humifusa Lowell Ahart 2009-10-27 16475 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, about 20 miles (air) northwest of Winte 130 Comment
  UC1563929  Cypselea humifusa Barbara Ertter with Elizabeth Neese 1988-10-2 7967 Napa 15 air mi nnw of Napa (Lake Hennessey, on Conn Creek, e of boat-launching ramp on se edge); North Coast Ranges, Lake Hennessey, Conn Creek 91 Comment
  JEPS103975  Cystopteris fragilis Jake Ruygt 1990-3-10 2443 Napa White Sulphur Springs Rd. 192 Comment
  UCR30537  Danthonia californica John C. Roos 1939-5-13 272 Napa North Coast Range, Pacific Union College, Angwin 503 Comment
  JEPS104558  Daucus carota Jake Ruygt 1979-6-18 706 Napa .5 mile north of Maple Lane on HWY 29 106 Comment
  UCD127396  Daucus carota R. Tofsrud 1948-6-15 s.n. Napa Exact location unknown. Comment
  UCD161569  Deinandra corymbosa Jake Ruygt 1992-5-18 2969 Napa Alston Park, Dry Creek Road, Napa. 85 Comment
  JEPS60582  Delphinium decorum Willis L. Jepson 1893-5-2 Napa Pope Valley grade from Calistoga Napa River Basin (near summit) Comment
  LA38213  Delphinium hesperium G. Mehlquist; 358 Napa 8.4 mi. S.of Monticello on road to Napa Comment
  RSA149662  Delphinium hesperium Harlan Lewis, G. Mehlquist 1941-5-9 s.n. Napa Monticello to Napa road, 1.5 miles S of road to St. Helena Comment
  UC467744  Delphinium hesperium subsp. hesperium Katharine Brandegee Napa Pope Valley Grade Comment
  UCD48154  Delphinium hesperium subsp. pallescens R. Blenkush; S. Hee, C. McWhorter, J. Moeller 2000-4-22 19 Napa Northern Napa Countym McLaughlin Reserve, grassland 500 feet south of intersection between Old Knoxville Road and Berryessa-Knoxville Road. 411 Comment
  UC906503  Delphinium hesperium subsp. pallescens J. Ewan 1934-4-30 8835 Napa 0.5 mi from jct Steel Canyon Rd and Monticello-Wingers Rd (along Steel Canyon Rd); ; Napa Co. Comment
  CAS-BOT-BC9813  Delphinium nudicaule John Thomas Howell 1931-4-2 6080 Napa Summit of Wooden Valley Grade, 8 miles east of Napa Comment
  RSA787109  Delphinium nudicaule Keith E. Hoffmaster 1946-3-23 1222 -a Napa Napa range, along Napa-Monticello road. Comment
  UC608257  Delphinium nudicaule B. O. Schreiber 1938-4-24 2495 Napa 5.2 mi nne Napa; Napa Quadrangle, Wooden Valley Grade 274 Comment
  UCD170216  Delphinium nudicaule Daniel Potter; Ninh Khuu, Travis Parker 2015-3-7 741 Napa Knoxville Wildlife Area, above and west of Berryessa-Knoxville Road. 330 Comment
  CAS-BOT-BC9814  Delphinium nudicaule John Thomas Howell 1926-3-20 1697 Napa Old toll toad to Mt. St. Helena Comment
  CAS-BOT-BC9815  Delphinium nudicaule John Thomas Howell; Mrs. Lewis 1961-3-30 36476 Napa Near Conn Reservoir Comment
  CAS-BOT-BC9817  Delphinium nudicaule Ira L. Wiggins 1949-4-30 12079 Napa Along old toll road between Calistoga and Middletown, about 2.5 mi. from Calistoga Comment
  UCD95892  Delphinium nudicaule H. MacKenzie 1949-4-26 s.n. Napa 5 miles west of St. Helena. Comment
  UCD96053  Delphinium nudicaule R. L. Smith 1948-5-7 s.n. Napa Samuel Springs, west of Monticello. Comment
  RSA195349  Delphinium patens Gilbert Muth 1967-5-19 697 Napa Milliken Dam. 335 Comment
  CAS-BOT-BC116493  Delphinium patens subsp. patens C. B. Wolf 1928-5-3 1834 Napa base of Mt. St. Helena Comment
  CAS-BOT-BC116497  Delphinium patens subsp. patens Clara A. Hunt 1921-4-1 s.n. Napa St. Helena Comment
  CAS-BOT-BC116494  Delphinium patens subsp. patens J. T. Howell 1931-4-2 6105 Napa Grassy meadow, 4 miles from Monticello on road to Napa, Napa Range Comment
  CAS-BOT-BC116496  Delphinium patens subsp. patens Alice Eastwood 1930-6-8 6815 Napa On the old Toll Road below Pattens's, Mt. St. Helena region Comment
  CAS-BOT-BC116499  Delphinium patens subsp. patens Belle R. Jackson 1930-6-8 s.n. Napa On the old Toll Road below Patten's, Mt. St. Helena region Comment
  JEPS60576  Delphinium patens subsp. patens W. L. Jepson 1893-1 Napa Napa Mountains Comment
  JEPS110980  Delphinium uliginosum Jake Ruygt 1988-5-29 2192 Napa Cedar Valley 585 Comment
  LA207609  Delphinium uliginosum J. Ewan; 1937-5-23 10360 Napa Lower Lake to Monticello road, 1.9 mi. S of Lake Co. line Comment
  UCD169783  Delphinium uliginosum Daniel Potter; Ninh Khuu, Max Potter, James Shoulders 2015-4-18 791 Napa Knoxville Wildlife Area. Upper Zim Zim Creek drainage. 451 Comment
  JEPS110871  Delphinium variegatum subsp. variegatum Jake Ruygt 1982-4-18 1188 Napa Calistoga Grade on Mt. St. Helena 350 Comment
  UC112888  Dendromecon rigida Katharine Brandegee 1889-4 Napa a few hundred feet above Toll House; Mt. St. Helena Comment
  UCD73385  Dendromecon rigida 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-BC659  Dendromecon rigida subsp. rigida Alice Eastwood 1923-5-9 s.n. Napa Mt. St. Helena. Comment
  POM242806  Dendromecon rigida subsp. rigida Lyman Benson 1929-9-30 1930 Napa Mt. St. Helena 610 Comment
  UC766810  Deschampsia danthonioides R. F. Hoover 1941-4-26 4922 Napa Pope Valley Comment
  UC3238  Dichelostemma capitatum Willis L. Jepson 1893-5-2 Napa New Pope Valley grade Napa River Basin Comment
  UC421804  Dichelostemma capitatum Katharine Brandegee 1901-6-1 Napa Pope Valley Grade Comment
  JEPS64147  Dichelostemma capitatum W. L. Jepson 1938-5-18 18799 Napa slope above St. Helena Sanitarium; Howell Mountain Comment
  UCD14208  Dichelostemma capitatum Jim McKenna 1974-4-28 45 Napa 2 mi. south-east of Calistoga along the Silverado Trail, 2 mi. east on Dutch Henry Road. 487 Comment
  CDA10862  Dichelostemma volubile G. F. Hrusa, M. Rejmanek 1993-5-15 10957 Napa University of California, Quail Ridge Reserve betw. Hwy 128 and Lake Berryessa. Comment
  JEPS110905  Dichelostemma volubile Jake Ruygt 1992-5-15 2963 Napa in the vale east of Johnson's Meadow 457 Comment
  UCD48786  Dichelostemma volubile A. Collier; D. Caterson and S. Kenady 2002-5-4 9 Napa Quail Ridge UC Reserve. At northern tip of ridge, N of the intersection of the jct of West and East roads. Along upper road leading to power lines, off N side of road 15 m. 350 Comment
  CAS-BOT-BC502802  Dichelostemma volubile Cornelia S. Masters 1915-6-15 s.n. Napa Napa Valley Comment
  CDA18823  Digitaria sanguinalis J. A. Cooledge 1999-8-2 PDR 980770 Napa Growing in garden compost at 1032 Pueblo Ave., Napa, that originated from Idaho. 0 Comment
  CAS-BOT-BC150362  Diplacus aurantiacus John H. Thomas 1955-5-21 5099 Napa Sarco Creek drainage, near State Highway No. 37, about 6 miles from Napa 274 Comment
  SEINET13769181 Image available Diplacus aurantiacus J. W. Riekels 1961-1 40 Napa State highway 128, 2 miles southwest of Monticello Dam Comment
  CAS-BOT-BC152289  Diplacus congdonii John Thomas Howell 1941-4-5 16156 Napa Franz Valley Comment
  SEINET8409813  Diplacus congdonii R. F. Denno 1967-3-29 33 Napa inner Coast Range; 2 miles southwest of Monticello Dam. 137 Comment
  CAS-BOT-BC153283  Diplacus kelloggii John Thomas Howell 1940-5-19 15452 Napa Upper St. Helena Creek Comment
  CAS-BOT-BC153408  Diplacus layneae J. W. Stacey 1933-5-15 s.n. Napa Howell Mt. Comment
  JEPS8808  Dipsacus fullonum W. L. Jepson 1936-5-30 17562 Napa Napa Valley, Rutherford Rutherford; Napa Valley, Rutherford Comment
  UCD137496  Dipsacus sativus C. Heiser 1947-5-17 1913 Napa between St. Helena and Calistoga. Comment
  UCD64179  Distichlis spicata Beecher Crampton 1956-5-21 3445 Napa Myrtledale Hot Springs, 2 miles north of Calistoga. Comment
  CDA34681  Dittrichia graveolens L. Ahart 2009-10-27 16503 Napa Intersection of Pope Canyon Road and Berryessa Knoxville Road, near Lake Berryessa, about 20 miles (air) west of Winters. Comment
  JEPS112625  Dodecatheon hendersonii Jake Ruygt 1988-3-26 2128 Napa Toll Canyon 243 Comment
  CHSC59583  Dodecatheon hendersonii Scott Bingham 1975-5-11 83 Napa At top of grade 4.5 miles east of Toll House. 120 Comment
  JEPS103628  Downingia concolor var. concolor Lisa Schultheis 1995-5-31 195 -95 Napa corner of Pope Valley Cross Road and Chiles-Pope Valley Road Comment
  JEPS106563  Downingia concolor var. concolor Jake Ruygt 1982-5-12 1240 Napa east of Rocktram, west of HWY 221, Suscol Plain 3 Comment
  JEPS126076  Downingia pulchella Jake Ruygt 1993-5-14 3262 Napa West of American Canyon near county line. Cuttings Wharf 7.5' Quad. Comment
  JEPS106570  Downingia pusilla Jake Ruygt 1986-4-14 1701 Napa 4.5 miles north of Westgate Dr. on Atlas Peak Road 448 Comment
  JEPS82341  Downingia pusilla Robert F. Holland 1983-5-21 1233 Napa 3.5 mi s Route 121 (about 2200 ft w of Routes 12 and 29, e of the Napa River at Horseshoe Bend); Horseshoe Bend 3 Comment
  JEPS106844  Draba verna Jake Ruygt 1982-3-3 1115 Napa Long Canyon near Berryessa-Knoxville Rd 327 Comment
  UCD170196  Draba verna Daniel Potter 2015-3-14 761 Napa Knoxville Wildlife Area, near small creek southwest of Zim Zim Creek. 303 Comment
  JEPS44322  Drymocallis glandulosa var. wrangelliana Willis L. Jepson 1893-4-26 127 p Napa La Lomita at Yountville (Napa River Basin); , La Lomita at Yountville Comment
  UC1543126  Drymocallis glandulosa var. wrangelliana Charlotte G. Nast 1936-3-27 74 Napa Childs Canyon Comment
  JEPS103988  Dryopteris arguta Jake Ruygt 1978-3-12 238 Napa .9 mile east of Silverado Trail on Deer Park Road 152 Comment
  JEPS60038  Dryopteris arguta W. L. Jepson 1936-7-2 17646 Napa Angwin Meadow Howell Mts; Napa Range Comment
  UC1201283  Dryopteris arguta Florence E. Harrison 1941-7-19 Napa roadside between Christian Brothers and Lokoya Comment
  CDA11616  Dryopteris arguta G. F. Hrusa, G. L. Stebbins 1994-3-11 11614 Napa North Coast Biodiversity Arena; Las Posadas State Forest, immediately E of Fire Station. Comment
  UC674804  Dudleya cymosa Thomas Morley 1941-5-11 131 Napa 5.4 mi ne Pope Valley store (on Middletown Rd) 304 Comment
  CAS-BOT-BC428152  Dudleya cymosa subsp. cymosa J. Clausen 1935-5-22 1066 Napa 19.5 mi. S.E. of Lower Lake, on the Monticello road Comment
  UCD98664  Dysphania ambrosioides H. S. Reed 1948-11-6 2020 Napa Berryessa Valley. Comment
  CDA29741  Echinochloa crus-galli M. K. Beyers, F. Favela, J. McDonnell 2009-8-29 214 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
  JEPS122983  Echinochloa crus-galli Jake Ruygt 1986-8-23 1904 b Napa Conn Creek west of the spillway. Quad: Rutherford. Comment
  UCD38848  Echinochloa muricata Beecher Crampton 1962-9-25 6676 Napa Comment
  HSC90855  Echinodorus berteroi Barbara Ertter, Elizabeth Neese 1988-10-2 7968 Napa Lake Hennessey, 15 mi. NNW of Napa, on Conn Creek in N Coast Ranges, E of boat-launching ramp on SE edge 91 Comment
  CAS-BOT-BC445822  Egeria densa Alice A. Ackley 1968-8-29 s.n. Napa Along main highway at Hoffman Road crossing, Yountville Comment
  JEPS120330  Ehrendorferia chrysantha Jake Ruygt 1987-6-27 2055 Napa Homestake Mine, Knoxville. Knoxville 7.5' Quad. Comment
  CAS-BOT-BC112222  Eleocharis rostellata Peter H. Raven 1957-5-5 10753 Napa Near hot springs runoff, Calistoga 91 Comment
  RSA125599  Eleocharis rostellata Peter H. Raven 1957-5-5 17053 Napa Calistoga 91 Comment
  JEPS129125  Elodea canadensis Jake Ruygt 2010-8-14 5733 Napa Steele Canyon Resort, Lake Berryessa. Lake Berryessa 7.5' Quad. Comment
  SACT001058  Elymus canadensis M. Wiesendanger 1927-5-4 Napa Comment
  UCD118395  Elymus elymoides subsp. elymoides Rachael Olliff; Plant Biology 102 Collectors 2012-5-5 3 Napa Las Posadas State Experimental Forest. Northeastern part of property, uphill and north of Recreation Flat, along undeveloped road. 407 Comment
  UC34035  Elymus glaucus Willis L. Jepson 1893-1 Napa Napa Valley Comment
  UCD17975  Elymus glaucus Ellen Dean; with Plant Biology 102 class 2001-4-14 700 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, below stock pond. 152 Comment
  UCR25608  Elymus glaucus John C. Roos 1939-5-13 256 Napa North Coast Range, Pacific Union College, Angwin 503 Comment
  JEPS122976  Elymus multisetus Jake Ruygt 1986-5-17 1768 Napa 0.4 mile east of Flosden Road on American Canyon Road. Quad: Cordelia. Comment
  UCD48053  Emmenanthe penduliflora A. Haselby; M. Carson, S. Howard, P. Mayers 2000-4-29 7 Napa Napa County, McLaughlin Reserve, near Yolo County line, high on hill. 670 Comment
  JEPS110696  Epilobium brachycarpum Jake Ruygt 1992-5-6 2947 Napa Wild Horse Valley Ranch, west of Mitten Lake 420 Comment
  CAS-BOT-BC166342  Epilobium canum subsp. canum Philip A. Munz 1947-10-10 12215 Napa Inner Coast Ranges, 11 miles east of Rutherford on road to Winters Comment
  JEPS44029  Epilobium canum subsp. canum W. L. Jepson 1922-10-22 9834 Napa bed of White Sulphur Creek St. Helena Comment
  UCD105468  Epilobium canum subsp. latifolium D. H. Hartmann 1941-8-19 s.n. Napa Putah Canyon. Comment
  UCR44915  Epilobium ciliatum L. F. LaPre, R. Bjork 1986-7-11 s.n. Napa Inner North Coast Ranges, Tributary to Hunting Creek, 1 mi south of Dunningan Hill, near the Lake Co. line 400 Comment
  JEPS38242  Epilobium densiflorum W. L. Jepson 1893-9-22 14406 Napa Yountville Comment
  UCD19923  Epilobium foliosum Ellen Dean; J Bradford, K. Mawdsley, and L Wynholds 2001-7-13 778 Napa Quail Ridge Reserve. Decker Canyon, junction of West Rd. and Decker Bay trail. 146 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
  UCD63747  Epipactis gigantea Daniel Sanchez-Mata; Emin Ugurlu 2006-6-22 s.n. Napa Knoxville. Knoxville Devilhead Road. Cedar Valley. Cedar Creek. UC MacLaughlin Natural Reserve. BLM area. 580 Comment
  RSA97973  Epipactis gigantea J. M. Tucker 1954-6-13 2709 Napa Putah Creek, 3.5 miles above Recreation Beach Comment
  UCD164758  Epipactis gigantea Jake Ruygt 2014-5-24 5955 Napa Sutro Ranch, Atlas Peak, junction road to Fir canyon and driveway. Comment
  CAS-BOT-BC57894  Equisetum X ferrissii Peter H. Raven 1951-10-28 3922 Napa Yountville. 60 Comment
  RSA769189  Eragrostis hypnoides L. Ahart 2009-10-12 16464 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
  JEPS106941  Ericameria linearifolia Jake Ruygt 1998-4-27 3938 Napa NE corner of the county, on Blue Ridge. 722 Comment
  JEPS122653  Ericameria parryi var. latior Jake Ruygt 1979-7-28 777 Napa Mt. St. Helena on fire trail. Quad: Detert Reservoir Comment
  CAS-BOT-BC293618  Erigeron biolettii L. R. Abrams 1916-7-2 5750 Napa Near St. Helena Sanitarium Comment
  CHSC102267  Erigeron canadensis Lowell Ahart 2009-10-27 16477 Napa Below the high water line of Lake Berryessa, about 100 yards east of Eticuera Creek, about 50 yards south of Eticuera Parking Area at the northeast end of the causeway, on the south side of Berryessa Knoxville Road, about 20 miles (air) northwest of Winters. 130 Comment
  CHSC102301  Erigeron canadensis Lowell Ahart 2009-10-12 16418 Napa Above 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. 437 Comment
  JEPS41411  Erigeron greenei R. F. Hoover 1941-8-24 5572 Napa e side Mt. St. Helena Comment
  POM264143  Erigeron inornatus var. biolettii J. C. Roos 1939-4-16 252 Napa Angwin. Comment
  UCD161621  Erigeron petrophilus var. petrophilus Jake Ruygt 2004-8-28 4652 Napa southwest of Bear Valley on ridge, east of 'Cub Valley'. 719 Comment
  HSC43918  Eriodictyon californicum Robert M. Specht 1977-4-13 657 Napa South-facing slope 488 Comment
  RSA602572  Eriodictyon californicum Louis C. Wheeler 1952-8-30 6878 Napa Manganese Ridge: Moore Creek, Howell Mountain. Comment
  SBBG14310  Eriodictyon californicum L. B. Hendrix 1962-5-5 40 Napa SE end of Lake Berryessa, just W of Monticello Dam on Rd along lake Comment
  UCD16012  Eriodictyon californicum L. A. Condon; R. Flannery, C. Hallock, C. Kennedy, N. Strahan 2000-4-22 9 Napa McLaughlin Reserve, McLaughlin Reserve, found southeast of junction at Devilhead and Hunting Creek Roads. 38 deg. 49' 15'' N, 122 deg. 21' 13'' W; 530 m. 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
  UCR220101  Eriodictyon californicum 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
  JEPS110854  Eriogonum compositum var. compositum Jake Ruygt 1986-6-14 1811 Napa Mt. Millhouse Camp, Mt. St. Helena 548 Comment
  POM196472  Eriogonum dasyanthemum J. T. Howell 1927-8-23 3042 Napa Chiles Valley 213 Comment
  POM209422  Eriogonum dasyanthemum S. G. Stokes 1933-8-27 91 Napa Upper part of Sage Valley, near Chiles School, Napa Mountains Comment
  UCD164780  Eriogonum dasyanthemum Jake Ruygt 1990-9-26 2611 Napa Northwest corner end of Wooden Valley. 307 Comment
  CAS-BOT-BC266058  Eriogonum luteolum Peter H. Raven 1951-8-20 3854 Napa Near Lokoya 518 Comment
  CAS-BOT-BC266061  Eriogonum luteolum John Thomas Howell 1933-8-27 11651 Napa Chiles Valley, Napa Range Comment
  JEPS19662  Eriogonum luteolum W. L. Jepson 1934-10-16 16924 Napa above The Cave (Adam and Eve Ridge); Howell Mt., Adam and Eve Ridge Comment
  SD22495  Eriogonum luteolum Susan G. Stokes 1933-8-27 Napa Near Chiles School Comment
  JEPS110762  Eriogonum luteolum var. luteolum Jake Ruygt 1979-5-24 634 Napa 2.1 miles east of Silverado Trail on HWY 128 106 Comment
  UC6530  Eriogonum luteolum var. luteolum Willis L. Jepson 1893-9-21 Napa Wooden Valley grade Napa River Basin, Wooden Valley grade Comment
  UCD164784  Eriogonum luteolum var. luteolum Jake Ruygt 2009-6-18 5441 Napa Chiles-Pope Valley Rd. 286 Comment
  UCD167100  Eriogonum luteolum var. luteolum Jake Ruygt 2015-6-20 6138 Napa Missimer - Snell Valley Preserve. 178 Comment
  UCD48085  Eriogonum luteolum var. luteolum Robert Wolfson; J. Westbrook, S. Ratay, A. Houser, M. Disney, S. Wathen 2000-4-22 35 Napa Napa Co, McLaughlin Reserve, approx. 0.5 miles South of Berryessa-Knoxville Rd. Along east side of Devilhead Rd, 1 st ridge south of Devilhead Rd. 518 Comment
  UC6527  Eriogonum luteolum var. luteolum H. N. Bolander 1863-9-20 2639 Napa Napa Comment
  UCD164787  Eriogonum luteolum var. luteolum Jake Ruygt 1988-5-29 2191 Napa Devilshead Rd. 448 Comment
  UCD170463  Eriogonum nudum var. nudum Daniel Potter; Ninh Khuu 2016-6-18 892 Napa Knoxville Wildlife Area, upper Zim Zim Creek drainage east of Knoxville-Devihlead Road. 442 Comment
  JEPS56627  Eriogonum nudum var. nudum W. L. Jepson 1937-9-29 18571 Napa on road to Sanitorium; St. Helena Comment
  RSA766355  Eriogonum nudum var. nudum Joseph A. Ewan 1933-9-17 8001 Napa Near Stevenson Monument, Mt St Helena Comment
  JEPS106952  Eriophyllum confertiflorum Jake Ruygt 1995-6-13 3495 Napa Oakville Grade about 100 yards east of Mt. Veeder Road. 176 Comment
  UCD160797  Eriophyllum lanatum Ellen Dean; D. Potter, D. Hickson, R. Ruygt, C. Donkers 2015-5-2 8677 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
  CAS-BOT-BC301049  Eriophyllum lanatum var. achilleoides L. R. Abrams 1928-5-4 12284 Napa 4 mi. south of Middletown Comment
  CAS-BOT-BC301052  Eriophyllum lanatum var. achilleoides L. R. Abrams 1928-5-4 12284 Napa 4 mi. south of Middletown Comment
  RSA15681  Eriophyllum lanatum var. achilleoides C. B. Wolf 1928-2-25 1487 Napa Mt. St. Helena Grade, 2 mi. below Hawkins Mt. Camp. Comment
  RSA195303  Eriophyllum lanatum var. achilleoides Gilbert Muth 1967-5-17 669 Napa Oat Hill Road, Calistoga 244 Comment
  UCD161361  Eriophyllum lanatum var. achilleoides Jake Ruygt 1988-5-29 2198 Napa Adams Ridge. (Coordinates estimated by label maker at UC Davis). 670 Comment
  UCSC009024  Eriophyllum lanatum var. achilleoides Dylan M. Neubauer 2015-4-24 126 Napa (NCoRI) Sage Canyon Rd/Hwy 128, across from S edge Lake Hennessey 101 Comment
  CAS-BOT-BC301046  Eriophyllum lanatum var. achilleoides S. Saufferer 1973-5-24 222 Napa About 5 mi. northeast of Calistoga along Highway #29 Comment
  SBBG8172  Eriophyllum lanatum var. achilleoides H. and M. Dearing 1939-5-3 3161 Napa near Napa Comment
  UCD132199  Eriophyllum lanatum var. achilleoides Heidi E. M. Dobson 1977-6-10 264 Napa above Mt. Veeder Road. Comment
  UC1536864  Eriophyllum lanatum var. arachnoideum G. H. True Jr. 1937-6-21 737 Napa near Lokoya Lodge 365 Comment
  JEPS85038  Erodium botrys Larry Heckard and Mary Ashton 1969-5-3 2196 Napa 7 mi ne Napa (Mead Ranch, off the Atlas Peak Rd) 457 Comment
  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
  RSA128564  Erodium brachycarpum Peter H. Raven, G. Ledyard Stebbins 1953-4-19 5299 Napa Roadside in Suisun Valley just over Solano line. 76 Comment
  UC1130305  Erodium cicutarium A. E. Wieslander, H. S. Yates 1934-2-25 370 Napa 3 mi e Calistoga (Calistoga to Middletown); Calistoga Quad. 335 Comment
  JEPS129141  Erodium moschatum Jake Ruygt 1980-3-2 805 Napa Corner of Marin Street and H Street, Napa. Napa 7.5' Quad. Comment
  JEPS17447  Eryngium aristulatum var. aristulatum W. L. Jepson 1893-9-25 14268 Napa Yountville Comment
  JEPS14084  Eryngium aristulatum var. aristulatum W. L. Jepson 1938-6-8 18899 Napa Snell Valley, Playa Comment
  JEPS14257  Eryngium aristulatum var. aristulatum Joseph P. Tracy 1938-6-6 15837 Napa 5 mi. n. Napa City; Napa Valley 30 Comment
  JEPS166  Eryngium aristulatum var. aristulatum W. L. Jepson 1893-4-27 14280 Napa Yountville 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
  UC626482  Eryngium aristulatum var. aristulatum Wilhelm N. Suksdorf 1913-7-24 647 Napa in the neighborhood s.e. Napa Comment
  CAS-BOT-BC54304  Erysimum capitatum David D. Keck 1931-4-2 1031 Napa Wooden Valley road, east side of Napa Range, 8 miles from Napa. Comment
  JEPS97927  Erysimum capitatum Jake Ruygt 1998-5-4 3960 Napa N of Flosden Road American Canyon 158 Comment
  JEPS120386  Erysimum capitatum Jake Ruygt 1981-4-22 997 Napa American Canyon, .3 [0.3} miles east of Flosden Road Comment
  UCD170371  Erysimum capitatum var. capitatum Daniel Potter; N Khuu, K Battenberg 2016-4-30 869 Napa Knoxville Wildlife Area, along Nevada Creek. 194 Comment
  SEINET8255130  Erythranthe microphylla L. Constance 1938-3-27 2040 Napa above Wooden Valley 8 mi. ne. of Napa. e. slope of Howell Mountains, North Coast Ranges. 457 Comment
  SJSU1353  Erythronium californicum J. W. Tilden 1953-5-24 1040 Napa NE slope Mt St Helena 457 Comment
  CAS-BOT-BC124173  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-BC133288  Erythronium helenae Elizabeth Wright 1927-3-27 s.n. Napa Mt. St. Helena Comment
  CDA20131  Erythronium helenae R. Gross 2003-5-4 RG 1 -03 Napa North Coast; Foote Ranch, NW base of Mt Saint Helena. 0 Comment
  UCD166145  Erythronium helenae John Gibson 2016-3-19 6 Napa Near Aetna Springs, ca 2 mi from jct with Pope Valley Rd and 1.1 miles west of Aetna Springs. 365 Comment
  SEINET10528927  Erythronium pluriflorum James R. Shevock, Jim A. Bartel 1988-7-2 Shevock 11844 Napa Common along the north and northeast slope of Shuteye Peak on granitic rocky slopes, subalpine coniferous forest, T7S R23E, sect 2N 1/2. Chiquito Ridge, San Joaquim River drainage, Sierra National Forest. Associated with Saxifraga bryophora, Lomatatium torreyi and Sorbus californica. 8250 feet. Comment
  JEPS110735  Eschscholzia caespitosa Jake Ruygt 1994-3-15 3314 Napa Chiles Canyon Road about 1 mile from Chiles Valley 350 Comment
  UC614560  Eschscholzia caespitosa L. Constance 1938-3-27 2043 Napa near Capell Valley (8 mi s of Monticello); North Coast Ranges, Napa Range, Steel Canyon 304 Comment
  CAS-BOT-BC402785  Eschscholzia caespitosa Lester Rowntree 1937-3-30 s.n. Napa Steel Canyon near Napa Comment
  UCD15072  Eschscholzia caespitosa Janet Zwanziger 1977-4-24 25 Napa Along Berryessa-Knoxville Road, 1.6 miles N of Highway 128 junction. Comment
  UCD34213  Eschscholzia caespitosa Beecher Crampton 1978-4-24 9564 Napa Napa County, Markley Canyon on Hwy 128. Comment
  JEPS106423  Euphorbia crenulata Jake Ruygt 1987-3-14 1928 Napa Conn Dam, old city park 97 Comment
  UCD142430  Euphorbia lathyris H. Stabo 1964-6-11 s.n. Napa Lewelling Ranch; St. Helena. Comment
  CDA10900  Euphorbia spathulata G. F. Hrusa, M. Rejmanek 1993-5-15 10996 Napa University of California, Quail Ridge Reserve betw. Hwy 128 and Lake Berryessa. Comment
  JEPS100816  Euphorbia spathulata Dean Wm. Taylor with Mey Akasah 1999-6-4 17220 Napa ridge dividing Eticuera Creek from Zim Zim Creek, reached via jeep roads eastward of Devilhead Road 594 Comment
  UCD117765  Euphorbia spathulata Lisa Arimoto; Plant Biology 102 Collectors 2012-5-5 6 Napa Las Posadas State Experimental Forest. Northeastern part of property, in Recreation Flat valley. Adjacent to serpentine slope. 386 Comment
  UC1058582  Euphorbia spathulata C. H. Lamoureux, J. M. Tucker, and Roman Gankin 1957-4-11 1218 Napa 5.6 mi n State Hwy. 128 junction with State Hwy. 37 (along State Hwy 128) Comment
  UCD20757  Euthamia occidentalis M. Bibbo; with E. Dean and K. Mawdsley 2002-8-29 107 Napa McLaughlin UC Reserve. S of the reserve near Hunting Creek campground where Hunting Creek Rd. crosses the Creek. 100 yards downstream of the campground. 640 Comment
  UC766903  Festuca californica R. F. Hoover 1941-4-26 4926 Napa canyon n Pope Valley (on road to Butts Canyon) Comment
  UCD36939  Festuca californica Beecher Crampton 1956-5-25 3459 Napa Vaca Mountains, head of Markley Canyon. Comment
  UCSB6949  Festuca californica Kamb, Peter; Chisaki, Francia 1950-4-22 Napa West side of Wooden Valley; on California Highway #37 304 Comment
  CAS-BOT-BC278341  Festuca californica subsp. californica Peter H. Raven 1950-4-15 1741 Napa Wooden Valley Grade above Napa 457 Comment
  HSC26181  Festuca elmeri J. P. Smith, J. O. Sawyer 1970-5-17 3778 Napa 3 mi. S of Pope Valley Comment
  HSC9857  Festuca elmeri C. B. Wolf 1928-5-3 1813 Napa 5 mi. N of Calistoga, on Mt. St. Helena Grade Comment
  UCD65922  Festuca elmeri Beecher Crampton 1970-5-14 8593 Napa 10 miles east of Rutherford. Comment
  UC1153831  Festuca idahoensis Beecher Crampton 1956-5-25 3458 Napa head of Martley Canyon Vaca Mountains Comment
  JEPS122939  Festuca occidentalis Jake Ruygt 1990-5-19 2559 Napa 1/2 mile north of Diamond Mountain Road on Highway 29. Quad: Calistoga. Comment
  POM126174  Festuca occidentalis Joseph P. Tracy 1902-5-18 1544 .5 Napa Head of Moore's Creek, 3-4 miles east of Angwin's. 488 Comment
  UCD37405  Festuca roemeri Beecher Crampton 1960-5-17 5533 Napa 5 miles east of Rutherford, southern slopes of Conn Reservoir, along State Highway 128. Comment
  UCR19343  Festuca tracyi John C. Roos 1939-4-18 251 Napa North Coast Range, 3.5 mi. north of Pacific Union College, Angwin. Roadside below Dilly's Place 231 Comment
  POM57347  Filago californica C. F. Baker 1903-4-20 2626 Napa Mt. St. Helena. Comment
  CAS-BOT-BC454532  Fragaria vesca subsp. californica Alice Eastwood 1922-5-4 11249 Napa Calistoga Comment
  HSC60199  Frangula californica subsp. occidentalis J. P. Smith, J. O. Sawyer 1970-5-17 3785 Napa 9 mi. N of Pope Valley Comment
Read comments
Jun 12 2012
  CAS-BOT-BC53522  Frangula californica subsp. tomentella Peter H. Raven 1951-10-28 3962 Napa Road n. of Knoxville 609 Comment
  UCD167094  Frangula californica subsp. tomentella Jake Ruygt 2015-7-4 6148 Napa Missimer - Snell Valley Preserve. 177 Comment
  UCD18109  Frangula californica subsp. tomentella K. Carpenter; with E. Dean and K. Chaney. 2000-8-11 46 Napa Napa County. Just south of the border with McLaughlin Reserve. Along Knoxville-Berryessa Rd, ca. 1.4 road miles south of intersection with dirt road leading to old town of Knoxville, SW side of road, along drainage leading into Knoxville Creek; there is an old homestead uphill from collection site. 371 Comment
  UCD122027  Fraxinus dipetala Robert C. Bechtel 1952-4-20 69 Napa Samuel Springs, 7 miles northwest of Monticello. 91 Comment
  CAS-BOT-BC223533  Fraxinus latifolia H. E. McMinn 1923-5-25 957 Napa Suisun Creek, between Rockville and Wooden Valley Comment
  CAS-BOT-BC223534  Fraxinus latifolia H. E. McMinn 1922-6-8 178 Napa Collected on summit of Howell Mt. Four Comment
  UCD122055  Fraxinus latifolia Alton Enloe 1955-5-20 37 Napa Near Putah Creek bed; State Highway 128, ca. 10 miles southwest of Monticello Dam. Comment
  UCD33444  Fraxinus latifolia Beecher Crampton 1968-5-8 8262 Napa 1/2 mile south of Calistoga. Comment
  CAS-BOT-BC205885  Fremontodendron californicum Margaret J. Williams; Wayne Roderick 1984-5-22 84- 13 -2 Napa Hwy 29, 0.3 mi into Lake County from Napa County 396 Comment
  RSA38445  Fremontodendron californicum Carl B. Wolf 1944-11-1 11484 Napa 0.4 miles E of Lake Co line, between Knoxville and Lower Lake. 457 Comment
  UCR242099  Fremontodendron californicum S. Boshoren 1983-5-19 025 Napa 5 mi from Knoxville, northwest on Berryessa-Knoxville Road 640 Comment
  CAS-BOT-BC130072  Fritillaria affinis E. Crum 1936-3-15 1740 Napa [Butte's] Butts Canyon, Pope Valley-Middletown Road Comment
  CAS-BOT-BC130490  Fritillaria purdyi John Thomas Howell 1940-5-19 15451 Napa Upper St. Helena Creek Comment
  JEPS81599  Fritillaria purdyi R. Raiche 1982-3-7 20205 Napa Junction of Snell Valley Road and Butts Canyon Road Comment
  UC699685  Fritillaria purdyi Basil Bowers 1941-6-18 378 Napa e of Calistoga (n of point where Old Mine Road crosses summit, Palisades); Palisades 762 Comment
  UCD167997  Fritillaria purdyi James A. Neilson Jr. 1977-4-13 3864 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
  JEPS113968  Fritillaria recurva Jake Ruygt 1990-4-8 2474 Napa White Creek, Wild Horse Valley Ranch. Mount George 7.5' Quad. Comment
  UC796645  Fritillaria recurva Ira L. Wiggins 1949-4-30 12091 Napa Mount St. Helena, near Lake County Line Mount St. Helena Comment
  UCD162118  Fritillaria recurva Dylan O. Burge 2014-3-15 1496 Napa Mount Saint Helena. 640 Comment
  CAS-BOT-BC508186  Fritillaria recurva Hunt 1913-3-27 s.n. Napa St Helena Comment
  RSA68720  Fritillaria recurva J. T. Howell 1926-3-21 1720 Napa St. Helena Creek Comment
  UCD139676  Fritillaria recurva Heidi E. M. Dobson 1978-4-2 291 Napa Mt. Veeder. Comment
  UCD13130  Galium aparine Etienne and Laurie Oleksiewicz 1981-4-18 8 Napa On Knoxville Rd., 8.9 miles north of Pope Canyon Rd., north facing slope. Comment
  UCSB9839  Galium aparine Keator, Glenn 1959-3-28 Napa About 1.5 miles S from Conn's Picnic Area in Lake henessy Area 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
  UC1536781  Galium californicum subsp. californicum G. H. True 1937-6-21 738 Napa near Lokoya Lodge 365 Comment
  UCSB24071  Galium mexicanum subsp. asperulum James, C. 1966-4-24 Napa Junction of State Highway 12 & 121 and Foster Road, west of Napa Comment
  UCD121829  Galium nuttallii Heidi E. M. Dobson 1978-5-28 332 Napa East slope of Mt. Veeder. Comment
  UCD148824  Galium porrigens Ellen Dean; Diana Hickson 2014-4-29 8129 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 606 Comment
  UCD38609  Galium porrigens Beecher Crampton 1956-5-25 3485 Napa Howell Mtns. Comment
  CAS-BOT-BC304340  Gamochaeta John Thomas Howell 1926-3-28 1775 Napa SE base of Mt St Helena in Napa Valley Comment
  JEPS20440  Gamochaeta ustulata Willis L. Jepson 1893-4-24 14757 A Napa hills e St. Helena (to Conn Valley Road, Howell Mt. foothill); Napa River Basin, Howell Mt. Comment
  CAS-BOT-BC199053  Garrya congdonii Peter H. Raven 1951-5-6 2827 Napa Burn below Conn Dam. 274 Comment
  CAS-BOT-BC199054  Garrya congdonii Baker 1938-5-1 9015 Napa Pope Creek ca. 7 miles from Monticello Comment
  UCD160728  Garrya congdonii Ellen Dean 2015-5-23 8780 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
  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
  UCR198123  Garrya congdonii K. Carpenter, Ellen Dean, K. Chaney 2000-8-18 59 Napa UC McLaughlin Reserve, first ridge south of Knoxville-Berryessa Road, along west side of Devilhead Road, top of ridge by air quality station 561 Comment
  CAS-BOT-BC144376  Garrya fremontii Milo S. Baker 1941-6-30 10157 Napa Along Hiwy. to Howell Mt., north road from Silverado Trail to Pacific Union College Comment
  CAS-BOT-BC144382  Garrya fremontii H. E. McMinn 1923-5-25 961 b Napa Summit Wooden Valley Grade. Road to Napa. Comment
  CAS-BOT-BC144425  Garrya fremontii Peter H. Raven 1951-6-10 s.n. Napa Crater Region e. of Pinnacles 762 Comment
  JEPS126034  Garrya fremontii Jake Ruygt 1990-1-29 2431 Napa Napa Range about 1/2 mile south of Circle Oaks. Capell Valley 7.5' Quad. Comment
  UC527949  Gastridium ventricosum R. Bacigalupi, R. S. Ferris, and Ira L. Wiggins 1933-6-2 6659 Napa on road to Pope Valley 5 mi e St. Helena 304 Comment
  JEPS61424  Geranium dissectum H. P. Chandler 1907-4-28 7553 Napa Santa Rosa to Calistoga Comment
  UCD23414  Geranium molle Rebecca L. Moehlmann 1977-4-16 21 Napa Small purple flowers, notched petal. Pubescence both leaf surfaces. Foothill woodland with blue oak, digger pine. East side of Highway 128, 6.4 miles by road SSW of Monticello Dam. Wragg Canyon. 182 Comment
  UCD83410  Geranium purpureum Jake Ruygt 1986-5-7 1755 Napa Napa, Skyline Park. 152 Comment
  UC133966  Gilia capitata subsp. capitata Katharine Brandegee 1909-6-1 Napa Pope Valley Grade Comment
  UC932035  Gilia capitata subsp. capitata Verne Grant, Alva Grant 1947-5-11 7985 Napa wooded canyon ca 8 mi ne Vichy Springs (on Monticello Road, Mayacama Mountains); Mayacama Mountains, ne of Vichy Springs Comment
  UCR202432  Gilia capitata subsp. capitata Peter L. Morrell 1993-6-6 269 Napa Coast Range, Along Hwy 29, north side of road, 1 mile south of Robert Louis Stevenson State Park, c. 3 miles north of Calistoga 146 Comment
  JEPS69529  Gilia capitata subsp. capitata W. L. Jepson 1893-6-26 15073 Napa Howell Mtn. , Howell Mtn. (Napa River Basin) Comment
  UC1197930  Gilia capitata subsp. capitata J. P. Tracy 1903-5-16 1838 Napa near Calistoga (region about San Francisco Bay); Region about San Francisco Bay, nr Calistoga 152 Comment
  HSC43997  Gilia tricolor Robert M. Specht 1977-4-14 664 Napa N side of Nevada Creek 512 Comment
  UCD167224  Gilia tricolor subsp. diffusa Jake Ruygt 1986-4-12 1689 Napa Devil's Canyon. 536 Comment
  UCD167227  Gilia tricolor subsp. diffusa Jake Ruygt 1982-5-1 1217 Napa 3.2 miles north of Loma Vista Drive on Soda Canyon Road. 320 Comment
  JEPS85024  Gilia tricolor subsp. tricolor Larry Heckard and Mary Ashton 1969-5-3 2216 Napa ca 7 mi ne Napa (Mead Ranch, off the Atlas Peak Rd.); ne of Napa, off Atlas Peak Rd., Mead Ranch 510 Comment
  JEPS11814  Githopsis specularioides Willis L. Jepson 1893-5-1 Napa Upper Napa Valley Napa River Basin Comment
  CHSC103004  Gnaphalium palustre Lowell Ahart 2009-10-12 16422 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
  UCD73518  Gnaphalium palustre Ayzik Solomeshch 2007-5-30 s. n. Napa northwest of the city of Napa. Woolls Ranch, 1032 Mt. Veeder Road. 152 Comment
  JEPS122709  Gnaphalium ramosissimum Jake Ruygt 1992-6-24 3055 Napa Tuteur Ranch, end of Green Valley Road. Quad: Mt. George. 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
  CDA6087  Grindelia camporum var. parviflora H. Stabo 1960-7-13 4687 Napa St. Helena Highway, Paradise Park. 0 Comment
  CAS-BOT-BC304898  Grindelia hirsutula Peter H. Raven 1952-8-26 5132 Napa W. Bentley Wharf 15 Comment
  CAS-BOT-BC314580  Grindelia hirsutula Peter H. Raven 1951-6-26 3099 Napa 4 miles N of Vallejo near Solano Co. line 30 Comment
  JEPS106918  Grindelia hirsutula Jake Ruygt 1992-9-5 3146 Napa HWY 221 south of Kennedy Drive, south-bound lane 12 Comment
  POM183387  Grindelia hirsutula var. davyi J. T. Howell 1930-7-13 5346 Napa Mt. St. Helena. Comment
  POM143656  Guillenia lasiophylla C. F. Baker 1903-4-20 2629 Napa Mt. St. Helena. 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-BC302245  Harmonia nutans David D. Keck 1931-4-4 1088 Napa The Crater Country, 3 miles SE. from summit of Mt. St. Helena, northern Napa County 950 Comment
  UCD135764  Harmonia nutans Bruce G. Baldwin 1987-4-26 652 Napa Las Posadas State Forest (Howell Mountain), immediately north of dirt road leading east from Las Posadas Fire Station, less than 0.1 mile east of station. Comment
  JEPS106682  Helenium puberulum Jake Ruygt 1979-10-22 426 Napa .3 miles north of Airport Rd. along Sheehy Creek 4 Comment
  UCD48644  Helianthella californica S. Murphy; K. Keck and K. Dyer 2002-5-5 12 Napa Quail Ridge UC Reserve, northern tip of ridge, along northern edge of upper road leading to power lines and tip parcels, NE from the intersection of West and East roads ca. 500m. 327 Comment
  UCR212284  Helianthella californica Ayzik Solomeshch 2007-8-7 s.n. Napa North Coast Range, Oakville Ranch, c. 6 miles northwest of the town of Yountville; on Hwy 29 take 'Oakville Grade Road', c. 3 miles north from Yountville 205 Comment
  UC134822  Helianthella californica subsp. californica Brandegee 1888-9-1 Napa Howell Mountain Comment
  CAS-BOT-BC314722  Helianthella californica var. californica T. S. Brandegee 1888-9-1 s.n. Napa Howell Mountain Comment
  POM55343  Helianthella californica var. californica C. F. Baker 1903-4-20 2628 Napa Mt. St. Helena. Comment
  CDA11825  Helianthus bolanderi G. F. Hrusa 1993-10-3 11426 Napa North Coast Biodiversity Arena; 2.1 m. SW along Knoxville-Devilhead Rd. from Knowville-Berryessa Rd. 518 Comment
  JEPS106670  Helianthus bolanderi Jake Ruygt 1991-8-5 2821 Napa 3.2 miles north of Pope Creek on Berryes sa-Knoxville Rd. 118 Comment
  JEPS35463  Helianthus bolanderi W. L. Jepson 1938-9-24 19018 Napa Canyon of James Creek Pope Valley, Canyon of James Creek 304 Comment
  JEPS4459  Helianthus californicus W. L. Jepson 1893-9-24 13426 Napa Napaleo, Angwin's Meadows Howell Mt., Napaleo, Angwin's Meadows Comment
  CAS-BOT-BC305617  Helianthus californicus Alice Eastwood; John Thomas Howell 1939-8-20 7619 Napa Capell Creek Comment
  UCD161574  Heliotropium curassavicum Jake Ruygt 2006-9-5 5092 Napa Rector Creek about 4/10 mile east of Conn Creek. 36 Comment
  UCD74368  Heliotropium curassavicum var. oculatum Jake Ruygt 1991-6-29 2762 Napa 3.2 miles north of Pope Canyon Rd. on Berryessa-Knoxville Rd. 121 Comment
  UCD161740  Heliotropium europaeum Jake Ruygt 1992-9-5 3143 Napa 0.15 mile south of Tubbs Lane on Myrtledale Road, Calistoga. 122 Comment
  JEPS115768  Helminthotheca echioides Lowell Ahart 2009-10-12 16427 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 Wint 133 Comment
  RSA81516  Hemizonia clevelandii James I. McMurphy 1909-8-7 696 Napa Calistoga. Comment
  CAS-BOT-BC306150  Hemizonia congesta subsp. clevelandii Milo S. Baker 1933-9-9 7542 Napa Near Calistoga Geyser Comment
  UC88998  Hemizonia congesta subsp. clevelandii Edward Lee Greene 1883-8-1 Napa Calistoga Comment
  UC222700  Hemizonia congesta subsp. clevelandii H. M. Hall 1923-10-15 11950 Napa 2 mi nw Calistoga; Martindale's Spring Comment
  CAS-BOT-BC309835  Hemizonia congesta subsp. luzulifolia John Thomas Howell 1930-10-19 5612 Napa 1 mile east of Aetna Springs, Pope Valley Comment
  JEPS106663  Hemizonia congesta subsp. luzulifolia Jake Ruygt 1996-7-13 3762 Napa White Cliff Springs, Soda Valley (Soda Spring). 335 Comment
  SEINET3930506  Hemizonia congesta subsp. luzulifolia David Keil 1986-11-8 19792 Napa Along Lake Berryessa Knoxville Road near Knoxville. 2.3 miles south of turnoff to Homestake McLaughlin Mine/Mill.; 0 350 Comment
  UCD169870  Hemizonia congesta subsp. luzulifolia Daniel Potter; Ninh Khuu, Igor Jacarini 2015-5-30 805 Napa Knoxville Wildlife Area. Upper Zim Zim Ceek drainage. 432 Comment
  JEPS38253  Hemizonia congesta subsp. luzulifolia W. L. Jepson 1939-9-12 19486 Napa w St. Helena (1 mi w of summit (w side)); Spring Mtn. Comment
  UC197529  Hemizonia congesta subsp. luzulifolia H. M. Hall 1915-8-12 10096 Napa Collins San Francisco Bay Region Comment
  RSA31985  Hemizonia lutescens A. A. Heller 1941-9-22 16316 Napa Near Napa Junction. Comment
  POM195298  Hemizonia parryi subsp. parryi H. M. Hall 1923-10-15 11948 Napa Calistoga. Comment
  CAS-BOT-BC388501  Herniaria hirsuta var. cinerea Peter H. Raven 1951-6-10 2911 Napa Crater Region e. of Mt. St. Helena 762 Comment
  UC175984  Hesperevax acaulis var. robustior Joseph P. Tracy May 15 1903-May 18 1903 1864 Napa near Calistoga (Napa Valley); Northern Coast Ranges, Napa Valley 91 Comment
  UC164895  Hesperevax sparsiflora var. sparsiflora J. P. Tracy 1902-5-16 1511 Napa 3-4 mi e of Angwin's; Howell Mountain, Head of Moore's Creek 365 Comment
  UC31906  Hesperevax sparsiflora var. sparsiflora Willis L. Jepson 1894-5-1 Napa Conn Valley Comment
  UC2026900  Hesperocyparis macnabiana David Keil 1986-11-8 19788 Napa Along Lake Berryessa Knoxville Rd. near Knoxville 2.3 miles south of turnoff to Homestake McLaughlin Mine/Mill Comment
  SD62069  Hesperocyparis sargentii Darley F. Howe 1965-8-3 Napa just south of Napa-Lake County Line on State Highway #29 Comment
  UCD169786  Hesperocyparis sargentii Daniel Potter; Ninh Khuu, Max Potter, James Shoulders 2015-8-18 794 Napa Knoxville Wildlife Area. Upper Zim Zim Creek drainage. 444 Comment
  CAS-BOT-BC167405  Hesperolinon bicarpellatum Mrs. K. Brandegee 1911-6-29 s.n. Napa Butts [Canon] Canyon, near Aetna Springs Comment
  CAS-BOT-BC167422  Hesperolinon bicarpellatum Helen K. Sharsmith 1952-6-20 4145 Napa Above Pope Creek ca. 0.5 mile from Walter Springs 152 Comment
  UC1212354  Hesperolinon bicarpellatum Helen K. Sharsmith 1952-6-19 4141 Napa ridge between Butts Canyon and Pope Valley (on tributary of Pope Creek); Inner North Coast Ranges 274 Comment
  UC1212357  Hesperolinon bicarpellatum Helen K. Sharsmith 1952-6-19 4139 Napa 1.5 mi e Black Oak Villa; Inner North Coast Range, Butts Canyon 213 Comment
  UC1212360  Hesperolinon bicarpellatum Helen K. Sharsmith 1952-5-18 4081 Napa about 0.5 mi n Aetna Springs (near Aetna Mine); Inner North Coast Ranges 304 Comment
  UCD119661  Hesperolinon bicarpellatum Stephen P. Rae 2009-8-10 s.n. Napa Pritchard Hill, south of Lake Hennessey and Highway 128, on lands of Continuum Estate Winery, at end of private road near winery. 427 Comment
  UCD82614  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
  UCR242395  Hesperolinon bicarpellatum Stephen P. Rae 2009-8-10 s.n. Napa Pritchard Hill, south of Lake Hennessey and Hwy 128, on lands of Continuum Estate Winery, at end of private road near winery 427 Comment
  UCD167347  Hesperolinon bicarpellatum Jake Ruygt 2009-5-16 5406 Napa Aetna Springs Road about 1/2 mile east of Aetna Springs resort. 301 Comment
  UC1212210  Hesperolinon breweri Peter H. Raven 1951-6-26 3078 Napa Cappell Valley 365 Comment
  UC1212214  Hesperolinon breweri Helen K. Sharsmith 1959-5-29 4711 Napa se slope below rock spire west of junction of state highways 37 and 128 (s end of valley); Inner North Coast Ranges, Cappell Valley 274 Comment
  JEPS121521  Hesperolinon californicum Adam C. Schneider with Dick O'Donnell 2013-5-26 231 Napa North side of Butts Road, 3/4 miles southeast of Lake/Napa county line. Comment
  JEPS121545  Hesperolinon californicum Adam C. Schneider with Dick O'Donnell 2013-5-26 233 Napa North side of Butts Road, 3/4 miles southeast of Lake/Napa county line. Comment
  JEPS127853  Hesperolinon californicum Adam C. Schneider with Dick O'Donnell 2013-5-28 250 Napa Conn Valley Road, 2.1 miles west of Northwest corner of Lake Hennessey. Comment
  UC1212450  Hesperolinon californicum Helen K. Sharsmith 1952-6-1 4115 Napa n slope above Soda Creek (ca 2 mi se of Chiles Valley); Inner North Coast Ranges 243 Comment
  UCD110496  Hesperolinon californicum P. Rodriguez 1997-5-31 s.n. Napa Lower Chiles Valley Road. 245 Comment
  JEPS32281  Hesperolinon californicum Jos. P. Tracy 1899-6-19 384 Napa hill beyond flat Howell Mt. 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
  POM180782  Hesperolinon clevelandii J. T. Howell 1930-7-13 5359 Napa On the edge of the Crater Country Comment
  RSA151704  Hesperolinon clevelandii H. K. Sharsmith 1957-5-30 4598 Napa West side of Howell Mountain 2.4 miles west of Angwin. 305 Comment
  UCD164732  Hesperolinon clevelandii Jake Ruygt 2014-6-14 6002 Napa Ranch near Oat Hill. 619 Comment
  JEPS122780  Hesperolinon disjunctum Jake Ruygt 1993-6-5 3277 Napa Devihead Road .35 mile south of farm house. QUAD: Knoxville Comment
  JEPS112655  Hesperolinon drymarioides Jake Ruygt 2000-7-8 4283 Napa Devilshead Rd. 475 Comment
  JEPS122779  Hesperolinon drymarioides Jake Ruygt 1998-7-11 4089 Napa Devilhead Road about 1/2 mile south of ranch. QUAD: Knoxville. Comment
  UCD167344  Hesperolinon drymarioides Jake Ruygt 1986-7-5 1863 Napa Devilhead Road near farm. 469 Comment
  JEPS112654  Hesperolinon micranthum Jake Ruygt 1996-5-14 3692 Napa White Cliff Springs; Elder Valley; (Sabini property). 384 Comment
  JEPS122906  Hesperolinon micranthum Adam C. Schneider 2015-5-15 937 Napa Capell Valley Road, just southeast of intersection with Knoxville Road Comment
  UC1212263  Hesperolinon micranthum Helen K. Sharsmith 1952-5-17 4073 Napa road to Rutherford 3 mi e State Route 28; Inner North Coast Ranges, Canyon of Soda Creek 243 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
  UC1601272  Hesperolinon micranthum Helen K. Sharsmith 1958-11-2 4642 b Napa 2.1 mi beyond intersection of Conn Reservoir road to Rutherford with Chiles Valley-Pope Valley road Inner North Coast Ranges, Chiles Valley 198 Comment
  UCD110561  Hesperolinon micranthum Joseph P. Tracy 1933-6-2 12479 Napa Howell Mountain. On hills at head of Moore's Creek, 5 miles east of Angwin's. 396 Comment
  UCD110537  Hesperolinon micranthum M. Ensign 1943-5-25 326 Napa 24 miles from Monticello on road to Lower Lake. Comment
  JEPS122788  Hesperolinon sharsmithiae Jake Ruygt 2009-6-18 5439 Napa Chiles-Pope Valley Road. QUAD: Chiles Valley. 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
  JEPS127877  Hesperolinon sharsmithiae Adam C. Schneider with Dick O'Donnell 2013-5-26 206 Napa Aetna Springs Road, 1.4 miles west of Pope Valley Road. Comment
  JEPS112652  Hesperolinon spergulinum Jake Ruygt 1983-6-12 1494 Napa Mt. St. Helena 624 Comment
  JEPS122775  Hesperolinon spergulinum Jake Ruygt 1982-6-29 1357 Napa 0.4 miles west of Pope Valley Road on Howell Mtn. Road. QUAD: St. Helena Comment
  UC1601204  Hesperolinon spergulinum Helen K. Sharsmith 1951-10-21 4042 Napa 0.5 mi above Aetna Springs (near Aetna Mine); Inner North Coast Ranges 274 Comment
  JEPS11808  Heterocodon rariflorum W. L. Jepson 1936-7-1 17630 Napa below Four Corners (Howell Mt); Napa Range, Howell Mt. Comment
  OBI57141  Heterocodon rariflorum David J. Keil, with V. L. Holland, L. D. Oyler, G. F. Hrusa, G. L. Stebbins, et al. 1994-6-6 24512 Napa Along Aetna Springs Road on east slope of Sugarloaf Mountain Comment
  SEINET10460603  Heterocodon rariflorum Willis L. Jepson Jepson 1893 Napa HOWELL MTN 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
  CAS-BOT-BC143747  Heteromeles arbutifolia Peter H. Raven 1952-6-28 4207 Napa Conn Cr. below Dam 121 Comment
  SEINET3077394 Image available Heteromeles arbutifolia Royal D. Suttkus 1967-6-26 67- 30 -10 Napa Clearly Reserves, 7.2 miles NW of Pope Valley Comment
  UC31135  Heterotheca oregona var. compacta Willis L. Jepson 1892-10-22 Napa Sulphur Spring Creek bed Napa River Basin, Sulphur Spring Creek Comment
  CAS-BOT-BC424161  Heuchera micrantha var. erubescens Peter H. Raven 1950-6-20 2358 Napa in the Napa Range between Corn Valley & Howell Mtn. Comment
  UC127169  Hieracium albiflorum Harley P. Chandler Sep 7 1906-Sep 14 1906 7152 Napa Alta Loma Ranch Howell Mountain 487 Comment
  UCD133137  Hieracium albiflorum K. Esau; E. Hyde 1938-5-25 s.n. Napa exact location unknown. Comment
  UCD38948  Holocarpha virgata Beecher Crampton 1961-9-19 5979 Napa 3 miles east of Moskowite Corner, State Hwy. 128. Comment
  JEPS7754  Holozonia filipes Peter H. Raven 1952-8-28 5158 Napa near Napa Soda Springs 228 Comment
  UCD36377  Hordeum brachyantherum Beecher Crampton 1953-6-2 1436 Napa 8 miles south of Middletown, small meadow along Highway 53. Comment
  UCD83854  Hordeum brachyantherum Ellen Dean; Kate Mawdsley 2010-4-30 5944 a Napa Valley Gate Vineyard, lands near intersection of Hwy 12 and Kirkland Ranch Rd. 71 Comment
  UCD85463  Hordeum brachyantherum J. Street 1950-6-19 s.n. Napa Pope Valley. Comment
  UCD85484  Hordeum brachyantherum M. Wiesendanger 1927-5-4 705 Napa Napa County. Napa. Comment
  CAS-BOT-BC280879  Hordeum brachyantherum subsp. brachyantherum Peter H. Raven 1950-4-15 1702 Napa Napa 9 Comment
  UC1023500  Hordeum brachyantherum subsp. californicum Peter H. Raven 1951-6-10 2927 Napa E of Palisades (Crater Region) 762 Comment
  UC187092  Hordeum marinum subsp. gussoneanum Joseph P. Tracy 1903-5-18 1855 Napa Calistoga Hot Springs Northern Coast Ranges, Calistoga Hot Springs 91 Comment
  UCD120798  Hordeum murinum Ellen Dean; G. Golden, C. Loughran, PLB 102 interns 2012-4-29 7334 Napa East of Las Posadas Rd. California Dept. of Forestry's Las Posadas State Experimental Forest, east of the town of Angwin. Near entrance gate, west of fire station buildings. 521 Comment
  UCD20739  Hordeum murinum Ellen Dean; w/ Mark Bibbo 2002-6-17 1103 Napa Quail Ridge UC Reserve. SE corner of Lake Berryessa, just W of Monticello Dam. By field station, in the middle of the parking lot. 384 Comment
  CAS-BOT-BC284901  Hordeum murinum subsp. leporinum Ira L. Wiggins 1928-3-25 2881 Napa 1 1/2 mi. N.E. of Calistoga Comment
  UC50689  Hordeum murinum subsp. leporinum H. P. Chandler 1900-5-7 626 Napa Rutherford Comment
  JEPS110558  Horkelia californica subsp. dissita Jake Ruygt 1982-6-29 1349 Napa .2 mile south south of Old Bale Mill on west side of HWY 29 97 Comment
  UC679532  Horkelia californica subsp. dissita Milo S. Baker 1942-6-26 10208 Napa 1 mi e Pac. Theolog. Seminary; Pine Crest Comment
  CAS-BOT-BC410801  Hypericum concinnum H. E. McMinn 1922-6-8 168 Napa Mt Howell Summit Comment
  JEPS66790  Hypericum concinnum W. L. Jepson 1938-5-25 18860 Napa Howell Mountain, Bell Canyon Bell Canyon; Howell Mountain, Bell Canyon 579 Comment
  UCD160737  Hypochaeris radicata Ellen Dean 2015-5-23 8789 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. 231 Comment
  RSA135877  Iris fernaldii Lee W. Lenz, E. K. Balls 1952-5-8 17103 Napa 2.6 miles west from Calistoga on road to Santa Rosa, via Petrified Forest 91 Comment
  SEINET4170710  Iris macrosiphon Unknown 1938-4-22 2132 Napa Above Dry Creek, 2 mi W. of Yountville, Miyakma Mountains, North Coast Ranges 457 Comment
  UCR156588  Iris macrosiphon A. French 1967-5-7 36 Napa Coast Range, Oakville to Santa Rosa Rd, approx 7 mi from Oakville 457 Comment
  SEINET12049801  Iris macrosiphon F. H. Utech, Knight, W.; Knight, I.; Edwards, S. 1986-1 86 -303 Napa Robert Lewis Stevenson State Park trail to the Pallisades, trailhead on CA 29 near St. Helena Creek 780 Comment
  UCD138766  Iris macrosiphon R. L. Smith 1948-5-8 s.n. Napa east branch of Monticello Valley near Samuel Springs. Comment
  JEPS103966  Isoetes howellii Jake Ruygt 1996-5-19 3708 Napa West of Barnett Road near Burton Creek, (Peju Pr)Pope Valley. 201 Comment
  JEPS116562  Isoetes howellii Jake Ruygt 2005-4-30 4801 Napa Big Ranch Road at El Centro Ave. Napa 7.5' Quad. Comment
  CAS-BOT-BC57722  Isoetes howellii D. E. Breedlove 1974-4-27 36200 Napa along Silverado Trail just north of junction with Oak Knoll Road Comment
  JEPS116564  Isoetes nuttallii Jake Ruygt 2005-6-7 4908 Napa Ridge top west of Circle Oaks. Capell Valley 7.5' Quad. Comment
  JEPS116565  Isoetes nuttallii Jake Ruygt 1995-5-8 3464 Napa Abut 2 miles SE of Sage Canyon Road from boat dock. Yountville 7.5' Quad. Comment
  JEPS106648  Jaumea carnosa Jake Ruygt 1991-7-27 2805 Napa Napa River, 100 yds north of Southern Crossing 0 Comment
  JEPS126035  Juglans hindsii Jake Ruygt 1995-5-15 3478 Napa Mt. Veeder Road south of Lokoya, Francis can Estate. Sonoma 7.5' Quad. Comment
  LA16775  Juglans hindsii C. B. Wolf; E. R. Johnson 1934-10-17 6197 Napa Napa Range, Munson Ranch, above Wooden Valley, Old Indian Camp Site 304 Comment
  UC1601694  Juncus bufonius Ferd. L. Clarke 1892-1 Napa near Yountville Comment
  UC127473  Juncus effusus var. pacificus Harley P. Chandler Sep 7 1906-Sep 14 1906 7103 Napa Alta Loma Ranch Howell Mountain 487 Comment
  JEPS67117  Juncus hemiendytus Jos. P. Tracy 1902-5-18 1534 Napa Head of Moores Creek Howell Mt. 518 Comment
  JEPS96546  Juncus kelloggii Dean W. Taylor 1998-6-3 16454 Napa Bateman Creek 0.3 miles S Twin Peaks Mine 624 Comment
  JEPS84888  Juncus kelloggii Jake Ruygt May 1990 Napa Bear Valley 603 Comment
  JEPS126046  Juncus luciensis Jake Ruygt 1990-4-28 2516 Napa Bear Valley at pond. Detert Reservoir 7.5' Quad. Comment
  JEPS67098  Juncus occidentalis W. L. Jepson 1891-5-1 40 b Napa Upper Conn Valley Comment
  UC1103058  Juncus oxymeris Joseph P. Tracy 1899-6-11 351 Napa 3-4 mi e Angwin's; Northern Coast Ranges, Howell Mountain, Head of Moores Creek 365 Comment
  UCD121184  Juncus patens Ellen Dean; G. Golden, C. Loughran, PLB 102 interns 2012-5-5 7361 Napa East of Las Posadas Rd. California Dept. of Forestry's Las Posadas State Experimental Forest, east of the town of Angwin. NE Part of property. Recreation Flat. 392 Comment
  UCD166709  Juncus phaeocephalus var. paniculatus Jake Ruygt 1992-5-6 2942 Napa south of Leoma Lakes, Wild Horse Valley Ranch. 411 Comment
  POM263159  Keckiella corymbosa J. C. Roos 1939-7-16 274 Napa Napa Range near Calistoga. Comment
  UCR24498  Keckiella corymbosa John C. Roos 1939-7-16 274 Napa North Coast Range, Palisades, Napa Range near Calistoga 823 Comment
  JEPS11337  Kickxia elatine W. L. Jepson 1930-10-19 15684 Napa mouth of Sage Canyon (in Conn Creek bed); Napa Valley, Conn Creek 45 Comment
  JEPS120442  Kniphofia Jake Ruygt 2008-3-11 5265 Napa Atlas Peak Rd. west of Miliken Reservoir. Comment
  CHSC102540  Lactuca serriola Lowell Ahart 2009-10-27 16480 Napa Below the high water line of Lake Berryessa, about 100 yards east of Eticuera Creek, about 50 yards south of Eticuera Parking Area at the northeast end of the causeway, on the south side of Berryessa Knoxville Road, about 20 miles (air) northwest of Winters. 130 Comment
  CAS-BOT-BC26055  Lagophylla dichotoma subsp. minor David D. Keck 1933-5-29 2338 Napa bridge over Pope Creek, just south of Walters Spring. Comment
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Mar 3 2018
  UC1199151  Lagophylla minor Joseph P. Tracy 1933-6-2 12481 Napa on hills at head Moore's Creek (5 mi e of Angwin's); Howell Mountain Comment
  UCR146396  Lagophylla minor Beecher Crampton 1965-5-13 7331 Napa Inner North Coast Ranges, 11 miles east of Rutherford, State Hwy 128 244 Comment
  CAS-BOT-BC341558  Lagophylla ramosissima L. R. Abrams 1916-7-2 5760 Napa Near St. Helena Sanitarium Comment
  UCD20733  Lagophylla ramosissima Ellen Dean; w/ Mark Bibbo 2002-6-17 1098 Napa Quail Ridge UC Reserve. SE corner of Lake Berryessa, just W of Monticello Dam. Dead Man's Hill, along trail to top. 365 Comment
  UCD133620  Lagophylla ramosissima K. Esau; E. Hyde 1938-5-25 s.n. Napa exact location unknown. Comment
  CHSC10556  Lamium amplexicaule Lowell Ahart 1969-4-7 Napa Near Lake Berryessa. 304 Comment
  SBBG40959  Lamium purpureum M. M. Ackley 1959-4-4 Napa near St Helena Comment
  UCD124931  Lamium purpureum Merrel Ackley 1959-4-4 s.n. Napa near St. Helena. Comment
  RSA10701  Lasthenia californica C. B. Wolf 1928-5-3 1786 Napa 5 miles north of Calistoga, Mt. St. Helena Grade. Comment
  UC1222972  Lasthenia californica subsp. californica Joseph P. Tracy 1949-4-24 18291 Napa in saline flats at Myrtledale Hot Springs; Calistoga Comment
  JEPS10172  Lasthenia californica subsp. californica Willis L. Jepson 1893-4-24 Napa e St. Helena Comment
  UC1363760  Lasthenia conjugens Robert Ornduff 1960-4-26 6116 Napa 0.9 mi n of Soda Canyon Rd.; Silverado Trail Comment
  JEPS126083  Lathyrus cicera Jake Ruygt 1994-4-26 3354 Napa Pope Valley north of Barnett Road. Aetna Springs 7.5' Qua. Comment
  UCD170366  Lathyrus cicera Daniel Potter; N Khuu, K Battenberg 2016-4-30 864 Napa Knoxville Wildlife Area, on ridge west of Zim Zim Falls Creek trailhead. Comment
  CAS-BOT-BC213497  Lathyrus jepsonii subsp. californicus Peter H. Raven 1952-5-29 4092 Napa Napa River 1 mi. N Napa 60 Comment
  JEPS107269  Lathyrus jepsonii subsp. jepsonii Jake Ruygt 1999-6-8 4181 Napa Fagan's Slough Comment
  UCD81832  Lathyrus sphaericus Ellen Dean 2009-4-24 5462 Napa Property at 600 Petrified Forest Road. 170 Comment
  UCD106481  Lathyrus vestitus Paul C. Hutchinson 1963-3-3 2673 Napa 2 miles above the St. Helena Sanitarium along the road to Pope Valley. Comment
  UCD106498  Lathyrus vestitus D. Sanchez-Mata 1996-3-26 s.n. Napa Putah Creek. Lake Berryessa. 350 Comment
  JEPS107264  Lathyrus vestitus var. vestitus Jake Ruygt 1982-3-22 1141 a Napa Sugarloaf peak near Skyline Park 396 Comment
  JEPS107265  Lathyrus vestitus var. vestitus Jake Ruygt 1991-6-1 2708 Napa north of Campbell Flat, Mt. St. John 463 Comment
  JEPS55382  Lathyrus vestitus var. vestitus W. L. Jepson 1924-4-24 10370 Napa Toll House Mt. St. Helena Comment
  CDA27143  Lathyrus vestitus var. vestitus T. C. Fuller 1958-5-1 3713 Napa Highway 53, 8 miles north of Calistoga. 0 Comment
  CAS-BOT-BC323198  Layia chrysanthemoides J. Clausen 1935-5-22 1068 Napa 2.2 mi. S of Knoxville Comment
  JEPS106633  Layia septentrionalis Jake Ruygt 1986-4-20 1719 Napa Palisades north of Oat Hill Mine Rd. 755 Comment
  UC1157918  Lemna minuscula John C. Roos September 1938 Napa Angwin, Pacific Union College farm Angwin; , Pacific Union College farm 487 Comment
  CAS-BOT-BC534950  Lemna minuta Peter H. Raven 1951-6-26 3073 Napa Wooden Valley grade 304 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
  JEPS48644  Lepidium dictyotum var. acutidens Elsa Kraeger 1926-3-27 Napa Calistoga, near geyser Calistoga Comment
  UC1245378  Lepidium latipes Joseph P. Tracy 1950-3-23 18685 Napa Head of Moores Creek Las Posadas State Forest, Howell Mountain 335 Comment
  CAS-BOT-BC12774  Lepidium oxycarpum Peter H. Raven 1953-3-29 5200 Napa Calistoga. 106 Comment
  SBBG5962  Leptosiphon androsaceus H. and M. Dearing 1939-4-29 3239 Napa Conn Valley Comment
  UCD37575  Leptosiphon androsaceus Beecher Crampton 1955-4-7 2448 Napa Napa County, at border with Solano and Yolo Counties, 7 miles west of Winters, 0.25 mile west of Recreation Beach of Putah Creek, Vaca Mountains, east facing slope of Cold Canyon. Comment
  UCD49206  Leptosiphon androsaceus E. Gottschalk; C. Brassey and L. Hamamoto 2001-4-28 3 Napa Quail Ridge Reserve; SE corner of Lake Berryessa, just W of Monticello Dam. Along West Rd. roadside, less than 1/4 mile NW from jct with South Decker Rd. 182 Comment
  UCSC009025  Leptosiphon androsaceus Dylan M. Neubauer 2015-4-24 127 Napa (NCoRI) Sage Canyon Rd/Hwy 128, across from S edge Lake Hennessey 101 Comment
  RSA97993  Leptosiphon androsaceus Robert C. Bechtel 1952-4-20 68 Napa 7 miles northwest of Monticello (Samuel Springs) 91 Comment
  UCD49214  Leptosiphon bicolor E. Gottschalk; C. Brassey and L. Hamamoto 2001-4-28 5 Napa Quail Ridge Reserve; SE corner of Lake Berryessa, just W of Monticello Dam. Along West Rd. ca. 0.45 miles (2,400 ft.) as the crow flies NW from the jct of West Rd. and South Decker Canyon Rd. 249 Comment
  CHSC10563  Leptosiphon parviflorus Lowell Ahart 1969-6-7 Napa Near Lake Berryessa. 243 Comment
  RSA0081010  Leptosiphon parviflorus G. F. Hrusa, S. Larson 1995-4-10 12059 Napa Approx. 1 m. below bridge over Pope Creek, on Pope Canyon Rd. 175 Comment
  UCD121168  Leptosiphon parviflorus Ellen Dean; G. Golden, C. Loughran, PLB 102 interns 2012-5-5 7353 Napa East of Las Posadas Rd. California Dept. of Forestry's Las Posadas State Experimental Forest, east of the town of Angwin. NE Part of property. Recreation Flat area. Valley. 392 Comment
  UCD18033  Leptosiphon parviflorus Ellen Dean; with Susan Harrison, Dean Enderlend, Joe Callizo 2000-3-18 582 Napa Napa County. McLaughlin Reserve. Along Devil Head Rd. First ridge S of Knoxville -- Berryessa Rd., east side of Devil Head Rd. West-facing slope up by air quality station. 548 Comment
  UCD161259  Lessingia hololeuca Jake Ruygt 1982-8-11 1382 Napa Tubbs Lane at Myrtledale Rd., Calistoga. (Coordinates estimated by label maker at UC Davis). 121 Comment
  JEPS20656  Lessingia ramulosa W. L. Jepson 1938-6-8 18887 Napa nw Pope Valley; South Fork of Butts Creek Comment
  UC570411  Lessingia ramulosa Chas. M. Belshaw and A. L. Mason 1936-9-20 2688 Napa 3 mi nw Knoxville; North Inner Coast Range Comment
  POM260695  Lessingia ramulosa C. M. Belshaw, H. L. Mason 1936-9-20 2688 Napa Inner North Coast Range: 3 miles northwest of Knoxville Comment
  JEPS129058  Leucanthemum vulgare Jake Ruygt 1979-6-16 640 Napa 2.9 miles north of Redwood Road on Dry Creek Road. Napa 7.5' Quad. Comment
  CAS-BOT-BC444418  Lewisia rediviva Maxine Wilkes 1940-5-1 s.n. Napa Mt. St. Helena Comment
  JEPS43232  Lewisia rediviva Pearl Lutzi May 1916 Napa High Rocks on the road to Oat Hill Mine; Calistoga Comment
  UC7815  Lewisia rediviva Brewer 976 Napa Napa and Sonoma Comment
  CAS-BOT-BC272250  Leymus triticoides Peter H. Raven 1952-5-31 4104 Napa 1.5 mi. e. Yountville 30 Comment
  UC1746036  Lilaea scilloides Annetta M. Carter, Joseph Tracy, Rimo Bacigalupi 1950-5-23 2763 Napa Howell Mtn. La Jota Plateau - Las Posadas State Forest. 533 Comment
  CAS-BOT-BC451587  Lilaea scilloides Peter H. Raven 1953-5-2 5364 Napa East of Yountville 76 Comment
  UC472  Lilaea scilloides Willis L. Jepson 1893-4-26 Napa near Yountville; Napa River Basin Comment
  JEPS112541  Limnanthes douglasii subsp. douglasii Jake Ruygt 1998-4-8 3902 Napa SE corner of Soda Canyon Road and Silver ado Trail 22 Comment
  UC17898  Limnanthes douglasii subsp. nivea Willis L. Jepson 1893-4-26 Napa Rutherford Napa River Basin Comment
  UC23364  Linanthus androsaceus W. L. Jepson 1893-4-25 Napa St. Helena Comment
  UC23363  Linanthus androsaceus Willis L. Jepson 1893-4-28 Napa trail to Caux's Cabin Napa River Basin Comment
  JEPS110966  Linanthus bicolor Jake Ruygt 1996-4-13 3611 Napa Snell Valley Road at Stagecoach Canyon Road 179 Comment
  SEINET5732163 Image available Linanthus bicolor Jill Bockus 1974-1 5 Napa Wallace Hardin Ranch, 3.9 miles NE of Pope Canyon Road and Chiles Valley Road intersection. Comment
  JEPS110979  Linanthus ciliatus Jake Ruygt 1983-6-12 1490 Napa Mt. St. Helena 597 Comment
  JEPS58297  Linanthus ciliatus W. L. Jepson 1893-5-9 20909 Napa w of Rutherford; Napa Valley Comment
  UC52757  Linanthus dichotomus J. P. Tracy 1899-6-14 431 Napa Howell Mt. Comment
  UCD167994  Linanthus dichotomus subsp. meridianus James A. Neilson Jr. 1977-4-13 3869 Napa 1 to 2 miles east Maple Springs along Oat Hill Mine Rd. (Exact location unknown, coordinates estimated by label maker.) Comment
  JEPS110997  Linanthus jepsonii Jake Ruygt 1987-5-9 1980 Napa north of Catalpa Dr., Circle Oaks 396 Comment
  JEPS110972  Linanthus jepsonii Jake Ruygt 2005-5-11 4828 Napa Bear Valley, near Van Ness Creek 640 Comment
  RSA0004837  Linanthus jepsonii C. Goodwillie 1995-5-11 001 Napa Wantrup Wildlife Sanctuary, on primary road 1.3 km west of Hardin Road, and 60 meters north of vernal pool on north-facing. 256 Comment
  JEPS58098  Linanthus latisectus W. L. Jepson 1897-5-2 20940 Napa sw of Calistoga (Rebecca Ranch grade); Upper Napa Valley Comment
  SEINET11263942  Linanthus parviflorus Barbara Ertter, Jake Ruygt 1996-4-25 14597 Napa Kroeber Ranch on NE flank of Mount St. John, W of Rutherford in Napa Valley.; 0 Comment
  UC908692  Linanthus parviflorus Herbert L. Mason 1926-3-22 2790 Napa along road from Calistoga to Petrified Forest (near Sonoma County line) Comment
  JEPS37849  Lithocarpus densiflorus Willis L. Jepson 1903-9-6 2354 Napa York Creek Canyon Napa River Basin, St. Helena (St. Helena) Comment
  CAS-BOT-BC36063  Lithocarpus densiflorus var. densiflorus Alice Eastwood 1918-5-1 6856 Napa Mt. St. Helena Comment
  UCD83725  Lithophragma affine Surene Foutouhi; with E. Dean, Yuan-Chun Han 2010-5-7 4 Napa Along Wooden Valley Road; East side of the road; Lamb Vineyard Property. 188 Comment
  CAS-BOT-BC430625  Lithophragma affine L. R. Abrams 1928-5-3 12245 Napa Summit Mt. St. Helena Grade Comment
  CAS-BOT-BC435615  Lithophragma heterophyllum Carl B. Wolf 1928-5-3 1826 Napa Base of Mt. St. Helena Comment
  CAS-BOT-BC342248  Logfia filaginoides Peter H. Raven 1951-5-20 2854 Napa Hills w. Oakville 548 Comment
  JEPS33575  Logfia filaginoides W. L. Jepson 1936-5-29 17550 Napa Adam and Eve Ridge Howell Mt. Adam and Eve Ridge Comment
  JEPS106959  Logfia gallica Jake Ruygt 1978-6-25 367 Napa 1.5 miles west of Old Sonoma Rd. on HWY 12 91 Comment
  JEPS84597  Logfia gallica John W. Willoughby 1977-4-20 2146 Napa w side of range The Vaca Mountains (lattitude approximately that of Mount Vaca) 457 Comment
  UCD159934  Logfia gallica Alice Warrick 2007-4 s.n. Napa Quail Ridge UC Reserve. 2005 Pleasure Fire burn site, along west loop road, north of Decker canyon. Below southwest side, Q59. 243 Comment
  CAS-BOT-BC271065  Lolium temulentum Peter H. Raven 1952-5-29 4086 Napa Napa River 1 mi. N Napa 60 Comment
  UCD149669  Lomatium californicum Ayzik Solomeshch 2008-4-20 s.n. Napa North side of Pope Canyon Road, ca. 2 km west of intersection with Berryessa-Knoxville Road 140 Comment
  POM133002  Lomatium californicum C. F. Baker 1909-4-20 2602 Napa Mt. St Helena. Comment
  RSA10651  Lomatium californicum C. B. Wolf 1928-5-3 1838 Napa Summit of Mount St. Helena Grade, north of Calistoga. Comment
  SBBG5203  Lomatium caruifolium H. and M. Dearing 1939-5-3 3263 Napa near Rutherford Comment
  JEPS122699  Lomatium caruifolium var. denticulatum Jake Ruygt 2004-5-1 4587 Napa Green Valley Ranch, northeast of ranch compound. Quad: Mt. George. Comment
  SD125708  Lomatium dasycarpum L. F. Lapre 1986-4-25 Napa Tributary of Hunting Creek from the east, 2 miles southwest of the site of Knoxville, just east of Lake County line. 365 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
  UC1137629  Lomatium hooveri B. O. Schreiber 1938-4-24 2501 Napa 1/2 mi. n.w. Knoxville; Reiff Quad. 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
  UCD47850  Lomatium hooveri S. Burgess; A. Hufton, J. Pierner, A. Ryan, and B. Takahashi 2000-4-29 22 Napa Napa County; McLaughlin Reserve, Southwest side of Hunting creek, on east-facing slope of 'Research Hill'. 655 Comment
  JEPS17118  Lomatium macrocarpum Willis L. Jepson 1893-4-24 14384 Napa hills e. of St. Helena to Conn Valley Grade (Howell Mt. foothills); Howell Mt. foothills Comment
  OBI8852  Lomatium nudicaule Willis L. Jepson 1893-6-14 14316 Napa Near Napa City; Road to Napa Soda Springs near Geualon Miller's Comment
  CAS-BOT-BC217805  Lomatium repostum G. L. Stebbins 1971-5-2 8006 Napa Ranch of Giles Mead, along Atlas Mountain Road, northeast of Napa 487 Comment
  JEPS104550  Lomatium repostum Jake Ruygt 1991-4-20 2626 Napa Friesen's Lakes, near Deer lake 597 Comment
  POM180785  Lomatium repostum J. T. Howell 1930-7-13 5358 Napa On the edge of the Crater Country Comment
  RSA278514  Lomatium repostum T. C. Emmel 1964-4-11 6 Napa Mount St. Helena 915 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
  UCD82606  Lomatium repostum Ellen Dean; T. Starbuck 2009-5-4 5544 Napa Ridge above Lake Hennesy and Hwy 128 to the E of the Napa Valley. 426 Comment
  LA90109  Lomatium repostum Freed W. Hoffman; 1947-6-17 1645 Napa . Comment
  JEPS17552  Lomatium utriculatum Mrs. Mary Van. E. Ferguson 1919-4-13 203 Napa near Atlas Mt. Comment
  UCD149670  Lomatium utriculatum Ayzik Solomeshch 2008-4-20 s.n. Napa North side of Pope Canyon Road, ca. 2 km west of intersection with Berryessa-Knoxville Road 140 Comment
  SBBG5222  Lomatium utriculatum H. and M. Dearing 1939-5-3 3272 Napa Child's Valley, near St Helena Comment
  JEPS104512  Lomatium vaginatum Jake Ruygt 1987-5-16 1999 Napa Devil's Canyon 588 Comment
  JEPS104515  Lomatium vaginatum Jake Ruygt 1998-5-30 4003 Napa Table Rock 749 Comment
  UCD95687  Lonicera hispidula Ellen Dean; with Clare Loughran 2011-5-20 7032 Napa On the border of Sonoma County. Private property at 4028 Spring Mountain Road. West of the town of St. Helena. 605 Comment
  JEPS106726  Lonicera hispidula var. vacillans Jake Ruygt 1989-6-3 2355 Napa Monticello Rd. wset of Snow Flat; above Sarco Cr. 237 Comment
  JEPS12849  Lonicera hispidula var. vacillans W. L. Jepson 1898-1-4 Napa Howell Mountain Comment
  UCD23430  Lotus humistratus Fumi Takeda 1977-4-16 24 Napa Yellow petals, stems branching from base, tap root slender. Foothill woodland, open meadow adjacent to Hwy 128. 6.4 miles southwest from Monticello Dam. 182 Comment
  RSA617140  Lotus micranthus A. C. Sanders 1996-6-1 18193 Napa Southeast edge of town at Skyline Park, east end of Imola Road East. 91 Comment
  JEPS55723  Lotus oblongifolius var. oblongifolius W. L. Jepson 1893-6-26 13789 Napa Howell Mountain Comment
  JEPS107206  Lotus purshianus var. purshianus Jake Ruygt 1992-5-15 2960 Napa NW of Leoma Lakes, Wild Horse Valley Ranch 420 Comment
  CDA10890  Lotus wrangelianus G. F. Hrusa, M. Rejmanek 1993-5-15 10985 Napa University of California, Quail Ridge Reserve betw. Hwy 128 and Lake Berryessa. Comment
  UCD65952  Ludwigia peploides subsp. montevidensis B. J. Grewell 2006-9-19 06- 71 -LU Napa Lake Hennessey where reservoir overflow backs up into confluence with Sage Creek south of Hwy 128. 97 Comment
  RSA735364  Lupinus Keith E. Hoffmaster 1946-3-23 1093 Napa Napa range, along Napa-Monticello road Comment
  JEPS122705  Lupinus affinis Jake Ruygt 2005-3-28 4720 Napa Monticello Road, near large road cut, south of Circle Oaks. Quad: Capell Valley. Comment
  UC725890  Lupinus albifrons A. A. Heller 1940-5-6 15587 Napa just below the summit crossing of State Highway #29 e side Mt. St. Helena; e side of Mt. St. Helena just below summit Comment
  UCD162090  Lupinus albifrons Dylan O. Burge 2014-3-15 1487 Napa Mount Saint Helena. 850 Comment
  CAS-BOT-BC201548  Lupinus albifrons var. albifrons Mrs. H. C. Cantelow 1936-3-22 1131 Napa Howell Mt. Comment
  UC201116  Lupinus albifrons var. albifrons Katharine Brandegee 1918-7-31 Napa Toll House Mt. St. Helena (Mt. St. Helena); , Toll House Comment
  HSC58983  Lupinus bicolor G. E. Johnston 1974-4-4 1019 Napa Near Bell Canyon, close to the town of Angwin 427 Comment
  JEPS107232  Lupinus bicolor Jake Ruygt 1983-4-2 1402 Napa east end Green Valley Rd. 243 Comment
  JEPS64988  Lupinus bicolor Mrs. D. O. Hunt 1909-4-8 Napa St. Helena Comment
  OBI25607  Lupinus chamissonis R. L. Hoover 1968-4-11 20 Napa One block W of hwy 1 on Palm Ave, Marina Comment
  POM181684  Lupinus densiflorus var. aureus Williams 1927-4-15 s.n. Napa Hills. Comment
  POM66217  Lupinus latifolius subsp. latifolius Marcus E. Jones 1924-4-24 s.n. Napa Napa. 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
  OBI48333  Lupinus microcarpus var. densiflorus Rhonda Riggins 1982-5-22 1419 Napa CA 128 E, 7.4 mi E jctn Hwy 29 in Rutherford, 3.6 mi W jct Lower Chiles Valley Rd Comment
  RSA659035  Lupinus microcarpus var. densiflorus R. Riggins 1982-5-22 1419 Napa Ca 1218 E, 7.4 mi E jct. Hwy. 29 in Rutherford, 3.6 mi W jct. Lower Chiles Valley Rd. Comment
  CHSC108727  Lupinus microcarpus var. microcarpus B. Castro; L. P. Janeway 2002-5-12 1371 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
  SDSU21300  Lupinus nanus Michael S. Armstrong 2015-4-1 4 Napa Open field along CA-29 in St. Helena. East side of road about 200 feet from the roadway. 76 Comment
  SEINET11548759  Lupinus nanus Heather Schneider, Sharma, Manju 2015-1 621- 20150426 -1V Napa Quail Ridge Reserve; about 6 miles NE of Vacaville 226 Comment
  UC156988  Lupinus nanus Joseph P. Tracy 1903-5-15 1847 Napa near Calistoga; Northern Coast Ranges, Napa Valley 91 Comment
  UCD168545  Lupinus nanus 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
  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
  SEINET8056980  Lupinus nanus K. Suhr 1967-3-24 s.n. Napa Steele Park Resort, south shore of Lake Berryessa. Comment
  UCR43183  Lupinus sericatus L. F. LaPre 1985-4-24 s.n. Napa Inner North Coast Ranges, Along Livermore Road between Hwy 29 (at Mountain Mill House Girl Scout Camp) and White Point, near the Lake Co. line and south of Three Peaks 671 Comment
  POM66226  Lupinus succulentus Marcus E. Jones 1924-4-24 s.n. Napa Napa. 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
  UC1152134  Luzula comosa Joseph P. Tracy 1933-4-30 12098 Napa head Moore's Creek (now Las Posadas Forest, Howell Mountain); Howell Mountains, head of Moore's Creek, now Las Posadas For Comment
  UC183778  Luzula macrantha Joseph P. Tracy 1902-5-21 1604 Napa Northern Coast Ranges. Howell Mountain. On hills at head of Moore's Creek, 3-4 miles east of Angwin's 457 Comment
  CAS-BOT-BC441243  Luzula macrantha Alice Eastwood 1922-3-25 11094 Napa Calistoga Comment
  CAS-BOT-BC441244  Luzula macrantha C. B. Wolf 1928-2-25 1484 Napa Mt. St. Helenas Grade, 2 miles below Hawkins Mt. Camp Comment
  UCD168553  Luzula subsessilis 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
  JEPS120343  Lythrum californicum Jake Ruygt 2000-6-10 4275 Napa Adams Creek. Walter Springs 7.5' Quad. Comment
  UCD167281  Lythrum hyssopifolia Jake Ruygt 1989-6-25 2385 Napa Napa River north of Trancas Street, Napa. 1 Comment
  UC527943  Madia anomala R. Bacigalupi, R. S. Ferris, and Ira L. Wiggins 1933-6-2 6671 Napa 6 mi ne of Pacific Union College; Howell Mt., Aetna Springs Comment
  JEPS122704  Madia citriodora Jake Ruygt 1998-5-2 3949 Napa Landucci Ranch, Pope Canyon. Quad: Walter Springs. Comment
  UC175969  Madia citriodora J. P. Tracy 1902-5-21 1600 Napa 3-4 mi e Angwin's (head of Moore's Creek); Howell Mountain, head of Moore's Creek 457 Comment
  CAS-BOT-BC343828  Madia elegans Peter H. Raven 1951-8-19 3853 Napa Near Lokoya 487 Comment
  JEPS7382  Madia elegans Willis L. Jepson Aug 1892 Napa Napa Valley Comment
  UC89392  Madia elegans Robinson 1893-1 Napa Napa Comment
  POM285001  Madia elegans subsp. elegans Lyman Benson 1933-8-23 5686 Napa Mt. St. Helena, Mayacamas mountain range, Napa Valley watershed 305 Comment
  CDA10870  Madia exigua G. F. Hrusa, M. Rejmanek 1993-5-15 10965 Napa UC Quail Ridge Reserve betw. Hwy 128 and Lake Berryessa. Comment
  UCD18057  Madia exigua Ellen Dean; with Plant Biology 102 class 2000-4-22 611 Napa Napa County. McLaughlin Reserve. First ridge south of Knoxville -- Berryessa Rd., east side of Devil Head Rd., along road to air quality station. 548 Comment
  UCD21540  Madia exigua B. Pekin; Ellen Dean, Mark Bibbo, Alex Lee 2003-4-26 5 Napa California, Napa County, McLaughlin Reserve. Along Devil Head Road, just upslope (south of ) intersection with Knoxville-Berryessa Road. 487 Comment
  CAS-BOT-BC344448  Madia exigua J. Clausen 1935-5-22 1070 Napa Ca. 1 mi. E. of Chiles Valley Store Comment
  POM231110  Madia exigua Jens Clausen 1935-5-22 1070 Napa Ca. 1 mile east of Chiles Valley Store Comment
  JEPS106548  Madia gracilis Jake Ruygt 1986-6-9 1809 Napa 4.5 miles north of Westgate Dr.on Atlas Peak Rd. 451 Comment
  UCD161277  Madia gracilis Jake Ruygt 1990-6-2 2569 Napa Sulphur Canyon. (Coordinates estimated by label maker at UC Davis). 243 Comment
  CAS-BOT-BC343202  Madia gracilis J. Clausen 1935-5-22 1071 Napa Ca. 1 mi. E. of Chiles Valley Store Comment
  RSA104111  Madia nutans Jens Clausen 1935-5-23 1072 Napa Howell Mountain, near sumit, 6.5 miles NE of St. Helena Comment
  CAS-BOT-BC345051  Madia sativa David D. Keck 1933-11-10 2717 Napa Calistoga Comment
  JEPS106678  Madia sativa Jake Ruygt 1990-5-11 2536 c Napa Green Island Road at first bend 3 Comment
  UCD139045  Maianthemum dilatatum Joan A. Wegner 1973-6-1 93 Napa Bird Hill near St. Helena. Comment
  RSA51298  Maianthemum racemosum subsp. amplexicaule Peter H. Raven 1950-4-15 1732 Napa Wooden Valley grade above Napa 305 Comment
  CAS-BOT-BC347513  Malacothrix floccifera David D. Keck 1933-5-29 2368 Napa Pope Creek bridge south of Walters Springs Comment
  CAS-BOT-BC347516  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 274 Comment
  CAS-BOT-BC347517  Malacothrix floccifera Peter H. Raven 1951-5-6 2824 Napa Burn below Conn Dam 274 Comment
  POM203303  Malacothrix floccifera J. T. Howell 1931-4-19 6461 Napa Conn Valley. Comment
  UC1069945  Malacothrix floccifera B. Schreiber 1936-3-5 2206 Napa 0.3 mi wsw Petrified Forest; Calistoga Quad. 274 Comment
  CAS-BOT-BC347514  Malacothrix floccifera John Thomas Howell 1931-4-19 6461 Napa Conn Valley, Napa Range Comment
  POM216233  Malacothrix floccifera D. D. Keck 1933-5-29 2368 Napa Pope Creek bridge south of Walters Springs. Comment
  JEPS103972  Marsilea vestita subsp. vestita Jake Ruygt 1998-6-13 4023 Napa Milliken Creek south of Foss Valley. 405 Comment
  SEINET8891122 Image available Matricaria discoidea Alex Lasseigne 2003-1 13730 Napa Vicinity of Oakfield grocery store.; Oakville Comment
  UCD20830  Medicago polymorpha N. Nicola 2001-3-30 046 Napa Eastern side of inner north coast range, Putah Creek valley, Berryessa valley, Quail Ridge Nature Preserve, Decker Valley. Lat/long is estimate. Comment
  SACT001488  Melica californica John Willoughby 1977-4-20 Napa Below and just to the south of Mount Vaca. Rocky areas in chaparral. 609.6 Comment
  UCD160734  Melica californica Ellen Dean 2015-5-23 8786 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
  UCR212329  Melica californica Ayzik Solomeshch, Stephen Rae 2007-3-19 s.n. Napa North Coast Range, Northwest of the town of Yountville, along Oakville Grade Road, c. 6 miles west of the intersection with Hwy 29 [onto Dry Creek Road?] Comment
  CAS-BOT-BC282168  Melica geyeri Peter H. Raven 1952-8-26 5154 Napa Lokoya 487 Comment
  UCD87300  Melica geyeri Collector Unknown 1928-4-15 s.n. Napa Blake College -- east of Pacific Union College. Comment
  RSA0078573  Melica geyeri L. R. Abrams 1928-5-3 12254 Napa Summit St. Helena Grade. Comment
  HSC10357  Melica imperfecta J. V. Lenz 1947-4-19 Napa Chiles Valley Comment
  CAS-BOT-BC264213  Melica torreyana unspecified 1870-5-22 s.n. Napa Oakville Comment
  CAS-BOT-BC264214  Melica torreyana Peter H. Raven 1953-3-29 5219 Napa Hills e. of Imola 121 Comment
  CAS-BOT-BC264217  Melica torreyana Peter H. Raven 1964-5-9 19074 Napa Along dirt road 2 miles west of Aetna Springs Comment
  CAS-BOT-BC264219  Melica torreyana Carl B. Wolf 1928-5-3 1812 Napa 2 miles south of Hawkins Mount Inn Camp Comment
  CHSC83356  Melica torreyana L. P. Janeway; B. Castro 2002-5-12 7541 Napa Inner North Coast Ranges. Near top of south side of canyon of Cedar Creek, along the road from Devilhead Road. 564 Comment
  JEPS76084  Melica torreyana W. L. Jepson 1938-5-22 18813 Napa Pope Valley; Limekiln Creek Canyon Comment
  UCD149633  Melica torreyana G. Ledyard Stebbins 1994-4-15 s.n. Napa Hennessey Lake. Comment
  UCD163272  Melica torreyana D. Slakey; CNPS Volunteers 2015-4-25 117 Napa Sensitive Plant Canyon', about 900 m SSW of Campground at the west end of Hunting Creek Rd., near Knoxville. 335 Comment
  UCD88838  Melica torreyana Beecher Crampton 1956-5-25 3487 Napa Howell Mountains. Comment
  UCD89214  Melica torreyana E. Wilson 1932-5-1 s.n. Napa Traffic Officer's Country Club. 274 Comment
Read comments
May 1 2014
  CHSC102250  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
  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
  JEPS115773  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 W 133 Comment
  JEPS112571  Mentzelia laevicaulis var. laevicaulis Jake Ruygt 1997-7-5 3870 Napa White Cliff Springs east of Soda Valley Comment
  CAS-BOT-BC428852  Micranthes californica Peter H. Raven 1953-4-2 5295 Napa Tulucay Creek 243 Comment
  CAS-BOT-BC322616  Micropus amphibolus John H. Thomas 1959-4-19 7111 Napa About 2 miles SW of Oakville 152 Comment
  UCD48575  Micropus amphibolus Anne Mini; K. McBride, S. Snow, K. Ehmsen 2001-4-14 26 Napa Quail Ridge Reserve, SE corner of Lake Berryessa, just W of Monticello Dam, along Decker Ridge Road, N of jct with South Decker Canyon Rd. 335 Comment
  RSA10690  Micropus californicus C. B. Wolf 1928-5-3 1797 Napa 5 miles north of Calistoga, Mt. St. Helena Grade. Comment
  SFV4057  Micropus californicus J. M. Tucker 1965-5-15 3829 Napa Along headwaters of Zim Zim Creek, about 0.5 miles west of Devilhead Road and about 3 miles south southwest of Knoxville. Comment
  UCD18173  Micropus californicus 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
  CAS-BOT-BC348542  Micropus californicus var. californicus John H. Thomas 1955-5-21 5166 Napa Near State Highway No. 128 and Capell Creek, about 12 miles east of St. Helena 274 Comment
  JEPS106897  Micropus californicus var. californicus Jake Ruygt 1979-4-21 533 Napa east of east end Westgate Dr.,Napa 121 Comment
  JEPS40625  Micropus californicus var. californicus W. L. Jepson 1893-4-26 14732 Napa La Lomita Hills Yountville, Napa River Basin Comment
  UC50011  Microseris acuminata Willis L. Jepson 1894-5-1 Napa Conn Valley Napa River Basin Comment
  CAS-BOT-BC348964  Microseris douglasii subsp. douglasii John H. Thomas 1955-5-21 5163 Napa Near State Highway No. 128 and Capell Creek, about 12 miles east of St. Helena 274 Comment
  CAS-BOT-BC348969  Microseris douglasii subsp. douglasii David D. Keck 1933-5-29 2351 Napa Pope Creek bridge south of Walters Springs Comment
  UC166819  Microseris douglasii subsp. douglasii J. P. Tracy 1902-5-15 1458 Napa 3 to 4 mi e Angwin's; Howell Mountain, Head of Moores Creek 457 Comment
  CAS-BOT-BC348967  Microseris douglasii subsp. douglasii John Thomas Howell 1931-4-3 6112 Napa Pope Creek, 7 miles from Monticello, Napa Range Comment
  JEPS86873  Mimulus angustatus David M. Thompson 1988-4-3 865 Napa +/- 2 air mi se Angwin (1.1 road mi e of Howell Mt. Road via Cold Springs and Las Posadas roads, then over fence and along road to large area of boulders in meadow); Los Posadas State Forest 490 Comment
  UCD122156  Mimulus angustatus Kim E. Steiner 1978-4-29 204 Napa Rancho La Jota, 0.4 mi S of Las Posadas State Forest fire station entrance. 563 Comment
  JEPS110614  Mimulus arvensis Jake Ruygt 2000-5-6 4235 Napa Lawley Toll Rd near old log barn. 384 Comment
  JEPS11430  Mimulus arvensis Willis L. Jepson 1893-4-25 11 m Napa w St. Helena (trail to Caux's Cabin); Napa River Basin, Hoods Peak Range Comment
  JEPS11536  Mimulus arvensis W. L. Jepson 1915-4-23 6238 Napa hills e St. Helena 182 Comment
  UCD13200  Mimulus aurantiacus Charles Martin 1986-4-20 1 Napa 3 mi W of Monticello Dam along hwy 128. 304 Comment
  HSC45331  Mimulus aurantiacus var. aurantiacus R. York 1978-4-8 104 Napa 2 mi. W of Angwin on Hwy. 128 305 Comment
  JEPS10220  Mimulus aurantiacus var. aurantiacus Willis L. Jepson 1893-4-28 78 m Napa near Mt. George (Wooden Valley grade); Napa River Basin, Napa Mts. Comment
  JEPS41081  Mimulus aurantiacus var. aurantiacus Rimo Bacigalupi, and L. R. Heckard 1965-5-15 9097 Napa about 3 air mi s Knoxville (along jeep trail, sw of waterfall of Zim Zim Creek, leading to headwaters of Nevada Creek) 396 Comment
  UCD122282  Mimulus aurantiacus var. aurantiacus David Lawfer 1952-4-20 147 Napa Napa. Comment
  RSA298679  Mimulus aurantiacus var. aurantiacus D. C. Michener, Walter Wisura, D. Charlton, John Dourley 1982-7-25 4117 Napa [Unspecified] Comment
  NY90685  Mimulus bakeri C. F. Baker 1903-4-20 2608 Napa Mt. St. Helena. Comment
  UC444808  Mimulus douglasii J. P. Tracy 1902-5-22 1624 1/2 Napa 3-4 mi e Angwin's (head of Moore's Creek); Howell Mountain 365 Comment
  RSA523897  Mimulus guttatus W. L. Jepson 1893-5-8 10 Napa Howell Mountain, La Galea Plateau. Napa River Basin. 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
  SFV8685  Mimulus guttatus J. W. Riekels 1961-4-29 35 Napa Wragg Canyon. 0.25 miles north of State Highway 128. Near stream bed. 152 Comment
  JEPS10934  Mimulus inodorus Willis L. Jepson 1893-6-26 47 m Napa Angwin Meadows Napa River Basin, Howell Mt. Comment
  JEPS110612  Mimulus inodorus Jake Ruygt 2005-5-25 4865 Napa Munson Ranch, E end of Circle Oaks, Ridgecrest Drive 438 Comment
  UCD21582  Mimulus kelloggii K. Esau 1933-4-14 s.n. Napa Calistoga, near Petrified Forest. Comment
  JEPS128916  Mimulus latidens Juanita Duran 2000-4-18 4227 Napa Saint Helena; Spring street, 1.5 west of Highway. Rutherford 7.5' Quad. Comment
  CDA41703  Mimulus layneae S. E. Schoenig 1998-6-5 98 -23 Napa 20 meters east of Ink Grade Road, 0.5 mile northwest of intersection with Howell Mountain Road. Comment
  JEPS110615  Mimulus layneae Jake Ruygt 1999-5-17 4161 Napa Wild Horse Valley Ranch, near Leoma Lakes. 429 Comment
  JEPS110581  Mimulus microphyllus Jake Ruygt 1979-4-21 538 Napa Milliken Canyon 121 Comment
  JEPS11351  Mimulus microphyllus Willis L. Jepson 1893-5-2 7 m Napa e Calistoga (on the New Pope Valley grade); Napa River Basin, Napa Range Comment
  JEPS11437  Mimulus microphyllus W. L. Jepson 1921-5-6 9173 Napa Yountville 30 Comment
  JEPS85027  Mimulus microphyllus Larry Heckard, Mary Ashton 1969-5-3 2212 Napa ca. 7 mi ne Napa (Mead Ranch, off the Atlas Peak Rd., above and w of meadow) 510 Comment
  UC26989  Mimulus microphyllus W. L. Jepson 1893-4-26 Napa near La Lomita; Napa River Basin; Napa River Basin, near La Lomita Comment
  JEPS11428  Mimulus nasutus W. L. Jepson 1921-5-6 9169 Napa Yountville 30 Comment
  JEPS129171  Mimulus nudatus Jake Ruygt 2015-4-4 6064 Napa Butts Canyon south of Snell Valley Road. Aetna Springs 7.5' Quad. Comment
  UCD167090  Mimulus nudatus Jake Ruygt 2015-3-7 6030 Napa South of Snell Peak. 305 Comment
  UCD170353  Mimulus nudatus Daniel Potter; H Won, D McNair, A Holland, K Battenberg 2016-4-17 852 Napa Knoxville Wildlife Area, upper Zim Zim Creek drainage east of Knoxville-Devihlead Road. 459 Comment
  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
  JEPS22478  Minuartia californica Willis L. Jepson 1893-4-26 Napa La Lomita Napa River Basin Comment
  CAS-BOT-BC467196  Minuartia californica L. R. Abrams 1928-5-3 12222 Napa St. Helena Grade Comment
  CAS-BOT-BC388755  Minuartia douglasii Alice Eastwood 1915-6-6 4677 Napa Mt. St. Helena Comment
  JEPS51499  Minuartia douglasii W. L. Jepson 1938-5-22 18824 Napa Snell Valley Comment
  UCD148764  Minuartia douglasii Jake Ruygt 2007-5-17 5177 Napa Napa County; Duff Ranch, NW of Potato Hill. 777 Comment
  UCD160645  Minuartia douglasii Ellen Dean; Susan Harrison, Sharon Strauss 2015-5-10 8732 Napa Butts Canyon. Along Butts Canyon / Guenoc Road, just NW of Shell Valley Road turnoff. South side of road. 253 Comment
  JEPS122749  Mollugo verticillata Jake Ruygt 2009-7-28 5467 Napa North shore of Lake Berryessa near Eticuera Creek parking lot. Quad: Walter Springs. Comment
  CAS-BOT-BC220618  Monardella villosa Peter H. Raven 1951-6-10 2930 Napa Crater Region e. of Palisades 762 Comment
  UCD149659  Monardella villosa subsp. villosa Ayzik Solomeshch 2008-4-20 s.n. Napa North side of Pope Canyon Road, ca. 2 km west of intersection with Berryessa-Knoxville Road 140 Comment
  JEPS62405  Monardella villosa subsp. villosa Willis L. Jepson 1893-6-26 50 m Napa grade to Howell Mt.; Napa River Basin Comment
  CAS-BOT-BC220692  Monardella viridis John Thomas Howell 1933-8-27 11639 Napa Sage Canyon, Napa Range Comment
  UC1995309  Monardella viridis John Thomas Howell 1937-7-4 13060 Napa Wooden Valley Grade Comment
  UCD167097  Monardella viridis Jake Ruygt 2015-6-13 6129 Napa Fernandes - Snell Peak, Land Trust. 381 Comment
  UC292738  Monardella viridis W. L. Jepson 1894-10-13 Napa Cam Valley Cam <Conn> Valley (hillsides) Comment
  JEPS110825  Monardella viridis subsp. viridis Jake Ruygt 1982-7-18 1368 Napa Cedar Roughs near Guilliam Springs 298 Comment
  JEPS55473  Monardella viridis subsp. viridis W. L. Jepson 1893-5-4 32 f Napa Mt. St. Helena Comment
  SEINET10582242  Monardella viridis subsp. viridis A. Graff 1993-7-26 Graff 370 Napa Rte. 128, 3.1 miles east from junction with Pope Valley Rd., on left roadside. Locally infrequent on serpentine, in the semi-shade of Pinus coulteri, Quercus durata var. durata, Umbellularia californica, Heteromeles arbutifolia, Adenostema fascicularis, Arctostaphylos sp. End of bloom. Comment
  JEPS106888  Monolopia major Jake Ruygt 1993-5-1 3237 Napa SW of end of Cedar Creek Road. 426 Comment
  UC195823  Monolopia major C. F. Sonne Apr 1888 Napa field near Napa Junction Comment
  RSA0054950  Montia Keith E. Hoffmaster 1946-3-23 1218 Napa Along Napa-Monticello road. Comment
  CAS-BOT-BC444851  Montia fontana Alice Eastwood 1922-3-25 11091 Napa Calistoga Comment
  JEPS43386  Montia fontana W. L. Jepson 1921-5-6 9179 Napa Calistoga 109 Comment
  SEINET4671914  Muhlenbergia andina B. Crampton 1959-8-26 5450 Napa N end of Capell Valley, along State Hwy 128, above Capell Creek Comment
  SEINET7296349 Image available Muhlenbergia andina Beecher Crampton 1961-1 5969 Napa North end of Capell Valley above Capell Creek along State Hy. 128. Comment
  JEPS122677  Muilla maritima Jake Ruygt 1983-4-4 1410 Napa Tubbs Lane at Myrtledale Road, Calistoga. Quad: Calistoga. Comment
  UCD19937  Myriophyllum sibiricum E. A. Dean; J. Bradford, K. Mawdsley, and L. Wynholds 2001-7-13 795 Napa Quail Ridge Reserve. Gorwing along margin of Lake Berryessa. 121 Comment
  JEPS126062  Najas guadalupensis Jake Ruygt 2010-8-14 5731 Napa Lake. Steele Canyon Resort. Lake Berryessa 7.5' Quad. Comment
  JEPS129124  Najas minor Jake Ruygt 2010-8-14 5722 Napa NW shore of Lake Berryessa; Barton Hill. Walter Springs 7.5' Quad. Comment
  JEPS76080  Nassella lepida W. L. Jepson 1938-5-20 18802 Napa open slope above vineyard of John Ballentine (above St. Helena Sanitarium); Howell Mountain Comment
  UC1133161  Nassella lepida J. B. Spring 1932-6-7 71 Napa head of creek Napa Quadrangle, Carneros Creek 365 Comment
  CAS-BOT-BC260178  Nassella pulchra H. M. Hall 1921-4-14 11265 Napa Near Napa junction Comment
  UC187237  Nassella pulchra J. P. Tracy 1902-5-21 1581 Napa head of creek 3-4 mi e Angwin's; Howell Mountain, Moore's Creek 457 Comment
  CAS-BOT-BC60336  Nasturtium officinale Betty H. Johnson 1958-6-15 636 Napa Near Spring, 0.5 mile above Mount Mill House, 6.4 miles southwest of Middletown. Comment
  CAS-BOT-BC230261  Navarretia cotulifolia David D. Keck 1933-5-29 2350 Napa Just S of Pope Creek Bridge, S of Walters Springs Comment
  HSC58998  Navarretia cotulifolia Tim Excell 1975-5-21 119 Napa Near Pope Creek, close to the town of Pope Valley 183 Comment
  POM215775  Navarretia cotulifolia D. D. Keck 1933-5-29 2350 Napa Just south of Pope Creek Bridge, south of Walter Springs Comment
  RSA73730  Navarretia cotulifolia J. T. Howell 1939-4-30 14626 Napa Walter Springs. Comment
  UC963914  Navarretia divaricata subsp. vividior Milo S. Baker 1947-7-7 11854 Napa s of Mt. St. Helena Inn (rd leading towards the Crater) 914 Comment
  UCD167175  Navarretia divaricata subsp. vividior Jake Ruygt 2006-7-3 5066 Napa Mead Ranch on 'Old Wagon' trail. 472 Comment
  JEPS15003  Navarretia heterodoxa John Thomas Howell 1937-7-4 13056 Napa Wooden Valley Grade Comment
  UC143008  Navarretia heterodoxa Mrs. K. Brandegee 1910-7-28 139 Napa Angwin Comment
  POM258871  Navarretia heterodoxa J. T. Howell 1937-7-4 13056 Napa Wooden Valley Grade Comment
  JEPS116994  Navarretia intertexta subsp. intertexta David Gowen 2008-5-14 911 Napa South side of Snell Rd. ca. 200 feet east of junction with Butts Canyon Rd. Comment
  UCD167186  Navarretia leucocephala subsp. bakeri Jake Ruygt 1998-6-16 4038 Napa North of Barnett Road, Pope Valley. 201 Comment
  JEPS112554  Navarretia mellita Jake Ruygt 1982-7-17 1374 Napa Deer Park Rd. at Four Corners 414 Comment
  JEPS112555  Navarretia mellita Jake Ruygt 1989-6-3 2359 Napa about 1/2 mile south of Monticello Dam on Vaca Mtns. 393 Comment
  SEINET14156388  Navarretia mellita K. Brandegee 1910-7-26 s. n. Napa Pope Valley Comment
  SEINET5642388  Navarretia paradoxinota Leigh A. Johnson, David Gowen; Mark E. Mort 2009-5-27 09 -021 Napa In depressions along southeast side of Snell road within 50 east yards of jct. with Butts Canyon Road. Serpentine influenced soils. 180 Comment
  SEINET4673690  Navarretia paradoxinota David Gowen 2009-6-15 1062 Napa Snell Valley Road, east of Butts Canyon Road in Snell Wildflower Preserve.; 0 Comment
  JEPS110949  Navarretia pubescens Jake Ruygt 1977-5-1 209 Napa east end of Westgate Dr. 115 Comment
  UC23795  Navarretia pubescens Edw. L. Greene 1894-6-17 Napa Calistoga Comment
  POM204471  Navarretia pubescens Thos. Howell 1933-6-4 11390 Napa Hills east of Napa Comment
  POM261444  Navarretia pubescens Thos. Howell 1937-5-23 s.n. Napa Palisades. Comment
  UC1221750  Navarretia pubescens Beecher Crampton 1959-5-26 5258 Napa Martley Canyon Vaca Mountains (along State Hwy 128) Comment
  UC133924  Navarretia pubescens J. P. Tracy 1899-6-17 434 Napa Adobe Flat Howell Mt. 426 Comment
  UCD36307  Navarretia pubescens Beecher Crampton 1953-5-19 1309 Napa 4 miles south of Monticello, along Highway 128. Comment
  UCD59442  Navarretia pubescens Beecher Crampton 1959-5-26 5258 Napa Markley Canyon, Vaca Mountains. Hwy. 128. Comment
  SEINET5641795  Navarretia subuligera Leigh A. Johnson, David Gowen 2009-5-30 09 -052 Napa Along trail to Table Rock on East side of Hwy from parking area off Hwy 29.; 0 725 Comment
  JEPS110944  Navarretia tagetina Jake Ruygt 1983-6-1 1484 Napa HWY 12 at Sonoma County line 91 Comment
  JEPS110945  Navarretia tagetina Jake Ruygt 1986-5-24 1784 Napa Butts Canyon Rd. at Ink Grade 237 Comment
  JEPS16709  Navarretia tagetina Rimo Bacigalupi with J. R. Sweeney 1953-5-26 4125 Napa 5.25 mi n Calistoga (along road to Middletown (State Highway 29)) 411 Comment
  JEPS120357  Navarretia viscidula Jake Ruygt 1991-8-5 2825 Napa Rutherford Hill Lane. Rutherford 7.5' Quad. Comment
  JEPS106578  Nemacladus montanus Jake Ruygt 1989-4-22 2286 Napa NE corner of HWY 128 and Berryessa-Knoxville Rd.,Capell Cyn. 207 Comment
  UCD72910  Nemacladus montanus B. Wengeler 1995-4-30 s.n. Napa 2 m N of hwy 128 along Knoxville Rd. 183 Comment
  OBI20979  Nemacladus montanus Rimo Bacigalupi, L. T. Dempster, G. T. Robbins 1954-5-25 4508 Napa Above Soda Crk along State hwy 28, 8.2 mi E of Conn Lake reservoir Comment
  SEINET10461249  Nemacladus montanus Mason 1935-5-30 Mason 10000 Napa 4 miles north of Knoxville Mines Comment
  SEINET10461258  Nemacladus montanus Rimo Bacigalupi, Lauramay T. Dempster; Guy T. Robbins 1954-5-25 Bacigalupi 4508 Napa Barren serpentine slopes above Soda Creek along State Highway 28, 8.2 miles east of Conn Lake (reservoir) Comment
  SEINET10461259  Nemacladus montanus Jussell JUSSELL s.n. Napa Napa Comment
  UCD126389  Nemacladus montanus Herbert L. Mason 1935-5-30 s.n. Napa 4 miles north of Knoxville Mines. Comment
  JEPS79577  Nemophila heterophylla Edward Lee with A. Carter and E. Crum 1936-3-15 1796 Napa 3.4 mi out Rutherford (Rutherford-Pope Valley Road); <near> Rutherford Comment
  RSA60779  Nemophila heterophylla L. R. Abrams 1928-5-3 12235 Napa Summit St. Helena Grade Comment
  UCD120062  Nemophila heterophylla G. L. Webster 1967-3-23 7488 Napa Along Chiles Creek c. 1 mi SW Chiles Grist Mill, Pope Valley Rd. 137 Comment
  UCD37576  Nemophila heterophylla Beecher Crampton 1955-4-7 2452 Napa Napa County, at border with Solano and Yolo Counties, 7 miles west of Winters, 0.25 mile west of Recreation Beach of Putah Creek, Vaca Mountains, east facing slope of Cold Canyon. Comment
  UCD48047  Nemophila heterophylla M. K. Voigt; E. Sweeney, and M. Miller 2002-4-13 5 Napa McLaughlin UC Reserve. SW of town of Knoxville, 350 m N of Knoxville-Berryessa Rd. 426 Comment
  UCD49095  Nemophila heterophylla L. Wynholds; S. Du Plessis, B. Erickson, and C. Malleck 2001-4-14 6 Napa SW end of Lake Berryessa, Quail Ridge Reserve, along stream that runs along the E side of South Decker Canyon Rd. S of North Decker Canyon Rd. and N of the Cut-Off Rd. Between stream and South Decker Canyon Rd., where stream comes within 6 ft. of the road. 152 Comment
  JEPS3069  Nemophila heterophylla E. Kraeger 1926-3-28 Napa Russ House about 1/2 mi from Mt. St. Helena Inn; <near> Mt. St. Helena Inn Comment
  SBBG6130  Nemophila heterophylla H. and M. Dearing 1939-4-30 3232 Napa Saint Helena Comment
  JEPS110841  Nemophila menziesii Jake Ruygt 1977-3-14 156 Napa .2 mile north of Silverado Trail on Soda Canyon Rd. 121 Comment
  UC126919  Nemophila menziesii H. P. Chandler 1906-4-17 6077 Napa Comment
  UCD120237  Nemophila menziesii G. L. Webster 1967-3-23 7494 Napa c. 1 mi S of Spanish Flat. 167 Comment
  UC619287  Nemophila menziesii Mrs. L. A. R. Peckinpah 1898-3-11 Napa e Yountville (foothills Napa Range); foothills Napa Range e of Yountville Comment
  UCD23406  Nemophila menziesii Fumi Takeda 1977-4-4 1 Napa Flower blue but fades when mature. Highway 128, 6.4 miles southwest of Monticello Dam. Open foothill woodland. Moist, coarse clay soil. 182 Comment
  JEPS1885  Nemophila menziesii var. atomaria Mrs. Mary Van E. Ferguson 1919-4-13 205 Napa near Atlas; near Atlas Comment
  UCD159790  Nemophila menziesii var. atomaria James A. Neilson Jr. 1975-4-13 3135 Napa Soda Canyon Road, near outlet of canyon. 60 Comment
  CAS-BOT-BC219385  Nemophila parviflora H. P. Chandler 1907-5-14 7569 Napa White Sulphur Springs 150 Comment
  SEINET5521059  Nemophila parviflora var. parviflora H. P. Chandler 1907-5-14 7569 Napa White Sulphur Springs 150 Comment
  UCD166686  Nemophila pedunculata Jake Ruygt 1991-3-11 2668 Napa intersection of Aetna Extension Rd and Oat Hill Mine Rd. 670 Comment
  JEPS110824  Nepeta cataria Jake Ruygt 1979-7-28 778 Napa 1.8 miles east of HWY 29 on Livermore Rd 576 Comment
  UCD166672  Nepeta cataria Jake Ruygt 1992-8-3 3114 Napa Green Valley Ranch, end of Green Valley Road. 295 Comment
  JEPS122702  Nerium oleander Jake Ruygt 2002-10-8 4463 Napa Berryessa-Knoxville Road at the outflow of Smittle Creek in the lake. Quad: Chiles Valley. Comment
  JEPS115850  Nicotiana quadrivalvis Lowell Ahart 2009-10-12 16454 Napa Below the high water line of Lake Berryessa, along Capell Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile southwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of 437 Comment
  UC12463  Oemleria cerasiformis W. L. Jepson 1893-5-5 Napa Middleton; Mt. St. Helena 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
  JEPS43960  Oenothera elata subsp. hirsutissima Willis L. Jepson 1893-9-23 14495 Napa above Calistoga; Napa River Basin, Upper Napa Valley Comment
  UCD167255  Orobanche bulbosa Jake Ruygt 1987-5-9 1978 Napa 3.9 miles east of Atlas Peak Road on Monticello Road. 396 Comment
  UCD13158  Orobanche uniflora Jennifer Kent 1974-4-28 39 Napa Dutch Henry Canyon Rd., 2 miles north of junction with Silverado Trail, about 3 (airline) miles east of Calistoga. 487 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
  JEPS110567  Orobanche valida subsp. howellii Jake Ruygt 1986-6-14 1823 Napa Craters, canyon at head of Table Rock 707 Comment
  CAS-BOT-BC243699  Orobanche valida subsp. howellii Keith Wallace 1964-6-1 s.n. Napa 1/8 mile E of lookout, SW slope of Mt. St. Helena 1219 Comment
  POM15656  Orthocarpus erianthus C. F. Baker 1903-4-19 2632 Napa Calistoga. Comment
  JEPS15890  Osmorhiza berteroi John Benson 1887-1-1 Napa Comment
  CAS-BOT-BC316824  Packera clevelandii Harvey Monroe Hall 1923-10-14 11943 Napa 8 miles n. of Pope Valley. Along a small stream. Comment
  CAS-BOT-BC316826  Packera clevelandii John Thomas Howell 1930-10-19 5620 Napa 3 miles from Aetna Springs on Butts Canyon road to Middletown. Comment
  CAS-BOT-BC316827  Packera clevelandii Robert Francis Hoover 1966-8-23 9937 Napa Butts canyon, near Lake County line Comment
  UC166073  Packera clevelandii J. P. Tracy 1905-7-6 2221 Napa 3 to 4 mi e Angwin's; Howell Mountain, Head of Moores Creek 365 Comment
  UC570397  Packera clevelandii Chas. M. Belshaw 1936-9-20 2687 Napa 3 mi nw Knoxville; North Inner Coast Range Comment
  SEINET11744634 Image available Packera clevelandii J. P. Tracy 1905-7-6 2221 Napa Howell Mountain. Head of Moore's Creek, 3-4 miles east of Angwin's 366 Comment
  JEPS81214  Packera eurycephala var. eurycephala Douglas W. James Jr. 1973-5-5 97 Napa near, not far from road that runs through the ranch MacDonald Ranch property line; Las Posadas State Forest, Pope Valley 411 Comment
  CAS-BOT-BC316875  Packera eurycephala var. eurycephala John Thomas Howell 1935-5-12 12626 Napa Pope Creek Canyon 1 mile below Samuels Springs Comment
  OBI15493  Packera greenei Robert F. Hoover 1966-5-28 9878 Napa Just S of summit on Butts Cyn rd from Pope Valley Comment
  JEPS122965  Panicum acuminatum var. acuminatum Jake Ruygt 1986-5-5 1748 Napa NW slope of Mt. George. Quad: Mt. George. Comment
  JEPS122964  Panicum capillare Jake Ruygt 1986-6-18 1825 Napa Imola Ave. southeast of Maxwell bridge, Napa. Quad: Napa. Comment
  JEPS120368  Papaver heterophyllum Jake Ruygt 1981-5-13 1021 Napa American Canyon east of Flosden Road. Cordelia 7.5' Quad. Comment
  JEPS110746  Parentucellia viscosa Jake Ruygt 1988-5-4 2178 Napa SW corner of HWY 29 and Airport Rd. 19 Comment
  UCD170442  Parentucellia viscosa Daniel Potter; Ninh Khuu, Kai Battenberg 2017-5-7 914 Napa Knoxville Wildlife Area, Zim Zim Creek drainage northwest of Zim Zim Falls. 407 Comment
  UC1746158  Parvisedum pumilum Annetta M. Carter, Joseph Tracy, Rimo Bacigalupi 1950-5-23 2759 Napa Howell Mtn. Road near Angwin Creek crossing. Comment
  UC191203  Parvisedum pumilum C. F. Sonne 1895-4-1 Napa Hill at Soda Springs Soda Springs Comment
  UCD88729  Paspalum dilatatum Beecher Crampton 1962-10-9 6699 Napa 1.25 miles southwest Angwin, Howell Mtn. Road. Conn Creek. Comment
  UC218897  Passiflora caerulea Katharine Brandegee 1910-7-11 Napa Calistoga Comment
  JEPS120404  Paxistima myrsinites Jake Ruygt 1995-4-9 3423 Napa Van Ness Canyon near feeder creek to Van Ness Creek Comment
  CHSC22786  Pedicularis densiflora Carol Getzinger 1964-3-24 15 Napa Mt. Veeder Road, 0.3 mi s of jct with Dry Creek Road. 548 Comment
  POM146620  Pedicularis densiflora A. A. Heller 1924-4-12 13840 Napa About 5 miles south of Calistoga. Comment
  UCD17996  Pedicularis densiflora Ellen Dean; Kate Mawdsley 2001-4-9 682 Napa Quail Ridge Reserve. SE corner of Lake Berryessa, just W of Monticello Dam. Along South Decker Canyon Rd., south of jct with Cutoff Rd. 243 Comment
  UCR20384  Pedicularis densiflora D. V. Hemphill, J. C. Roos 1949-4-16 4289 Napa North Coast Range, Pacific Union College, Howell Mountain 499 Comment
  UCSB19025  Pedicularis densiflora Rankine, Jane 1965-4-13 Napa 3 miles W of Pope Valley on road between Pope Valley and Anqwin Comment
  RSA10645  Pedicularis densiflora Carl B. Wolf 1928-5-3 1845 Napa Summit of Mount St. Helena Grade, N of Calistoga Comment
  UC27314  Pedicularis densiflora Willis L. Jepson 1893-4-25 Napa trail to Leaux's Cabin; Napa River Basin Comment
  UCD123316  Pedicularis densiflora Chas. Heiser 1947-3-29 1889 Napa about 7 miles east of Napa. Comment
  UCD36151  Pedicularis densiflora Beecher Crampton 1953-2-26 989 Napa 6 miles east of Monticello, on Highway 128, above Putah Creek. Comment
  UCD47772  Pellaea andromedifolia Yumee Kim; L. Bachman, P. Lalbhai 2002-4-13 6 Napa Mclaughlin Reserve. N of Berryessa-Knoxville Road. Just SW of the old town of Knoxville. Hillside ca. 150 m above the road, east of the calcium seep, on a west-facing slope, 50 m down from the crest of the hill. 426 Comment
  CAS-BOT-BC71377  Pellaea mucronata John H. Thomas 1958-4-19 7112 Napa About 2 miles SW of Oakville 152 Comment
  POM23402  Pellaea mucronata Edward L. Greene 1903-4-20 2613 Napa Mount Saint Helena Comment
  RSA602575  Pellaea mucronata L. C. Wheeler 1952-8-30 6882 Napa Manganese Ridge. Moore Creek, Howell Mountain 366 Comment
  CAS-BOT-BC71382  Pellaea mucronata Paul F. Covel 1940-4-28 1704 Napa Grade near Sanitarium Comment
  UCD20501  Pellaea mucronata var. mucronata E. Dean; w/ Rob Weiss, Layne Huiet, and Kate Mawdsley 2002-6-2 1072 Napa McLaughlin UC Reserve. SE reaches of Research Hill, rocks S of Parking area at jct of old 4WD road with Knoxville-Berryessa road. NE side of Hunting Creek. 609 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
  CDA41870  Penstemon heterophyllus subsp. purdyi Yeager 1930-5-15 s.n. Napa [no further data] 0 Comment
  UC185341  Penstemon heterophyllus var. heterophyllus Katharine Brandegee 1909-6-1 Napa Pope Valley Grade Comment
  CHSC83408  Penstemon heterophyllus var. purdyi L. P. Janeway; B. Castro 2002-5-12 7532 Napa Inner North Coast Ranges. Small meadow along Pocock Creek just upstream of the dirt road from Devilhead Road. 506 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
  UC726424  Penstemon newberryi var. sonomensis A. A. Heller 1941-5-3 16086 Napa Mt. St. Helena, about half way up along the road leading to the sumit Comment
  UC887189  Penstemon newberryi var. sonomensis Milo S. Baker 1940-5-1 9576 Napa ca 2 1/2 mi s St. Helena Inn (and 800 ft higher); North Bay Counties, s of St. Helena Inn Comment
  UCD170213  Pentagramma triangularis Daniel Potter; Ninh Khuu, Travis Parker 2015-3-7 744 Napa Knoxville Wildlife Area, above and west of Berryessa-Knoxville Road. 357 Comment
  CAS-BOT-BC71676  Pentagramma triangularis subsp. triangularis Peter H. Raven 1953-2-21 5193 Napa Wooden Valley Grade 274 Comment
  UC178642  Perideridia gairdneri subsp. gairdneri K. Brandegee Aug. 1888 Napa Howell Mountain Comment
  JEPS12440  Perideridia kelloggii W. L. Jepson 1920-7-12 9071 Napa Conn Valley Napa Range (red ridge at mouth) Comment
  UCD19310  Perideridia kelloggii M. A. Bibbo; E. Dean 2001-7-6 2 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. 0.5 air miles from research station. E (upslope) side of the road. 259 Comment
  UCD164830  Perideridia oregana Jake Ruygt 2012-6-30 5867 Napa Crystal Flats, west of Putah Creek. 195 Comment
  CAS-BOT-BC419150  Persicaria maculosa Kate Eastwood Phelps 1930-7-1 s.n. Napa Sanitarium, Napa Valley Comment
  UCD21495  Petrorhagia dubia Jake Ruygt; Louise Vincenzio, Land Trust of Napa County 2002-4-22 4397 Napa Quail Ridge Reserve. 246 Comment
  UCD48848  Petrorhagia dubia M. Eng; W. Wong, N. Wannlund, and A. Holman 2002-5-4 18 Napa Quail Ridge UC Reserve, northern tip of peninsula just N of power lines in open grassy swale. 274 Comment
  UCR196226  Petrorhagia dubia M. K. Voigt, E. Sweeney, M. Miller 2002-4-13 01 Napa McLaughlin UC Reserve. Southwest of old town of Knoxville on north side of Knoxville-Berryessa Road 427 Comment
  UC131534  Phacelia californica C. F. Baker 1903-4-19 2601 Napa St. Helena Comment
  JEPS110852  Phacelia corymbosa Jake Ruygt 1988-5-29 2190 Napa sensitive plant canyon SE of Hunting Creek campground 411 Comment
  JEPS129067  Phacelia distans Jake Ruygt 2016-4-2 6170 Napa Smittle Creek NCRPOD, W of Lake Berryessa. Chiles Valley 7.5' Quad. Comment
  UCD120436  Phacelia distans M. Wiesendanger 1927-5-4 670 Napa Near Monticello. Comment
  JEPS78808  Phacelia egena John W. Willoughby 1977-4-20 2171 Napa just below top of main ridge (w side of range, latitude approx. that of Mt. Vaca); Vaca Mountains Comment
  UC1228238  Phacelia egena J. R. Sweeney, H. L. Mason, R. Bacigalupi 1953-6-8 Napa top of grade of rd over e flank of mt Mt. St. Helena (from Calistoga to Middletown) 670 Comment
  JEPS2164  Phacelia imbricata W. L. Jepson 1938-5-18 18797 Napa Howell Mtn. Napa Range Comment
  RSA170286  Phacelia imbricata subsp. imbricata W. L. Jepson 1938-5-18 18797 Napa Howell Mountain, Napa Range. Comment
  SD72097  Phacelia nemoralis John Thomas Howell 1937-7-4 13061 Napa Looden Valley Grade. Comment
Read comments
May 31 2018
  CAS-BOT-BC154361  Phacelia suaveolens Belle R. Jackson 1930-6-20 s.n. Napa Middle peak, Mt. St. Helena Comment
  UCD120738  Phacelia tanacetifolia Marshall R. Wanzer 1948-4-3 9 Napa Putah Canyon, 11 miles west of Winters. Comment
  UC187259  Phalaris angusta Joseph P. Tracy 1903-5-15 1844 Napa near Calistoga (Napa Valley); Northern Coast Ranges, Napa Valley 91 Comment
  CAS-BOT-BC265789  Phalaris aquatica J. H. Thomas 1960-8-29 8841 Napa About 1 mile north of Calistoga along Highway number 53 Comment
  CAS-BOT-BC265792  Phalaris aquatica Peter H. Raven 1951-6-24 3025 Napa Brown's Valley to Napa-Sonoma Road 91 Comment
  UC187260  Phalaris caroliniana Joseph P. Tracy 1903-5-15 1851 Napa near Calistoga (Napa Valley); Northern Coast Ranges, Napa Valley 91 Comment
  JEPS122932  Phleum pratense Jake Ruygt 1986-6-9 1807 Napa 4.5 miles north of Westgate Dr. on Atlas Peak Road. Quad: Capell Valley. Comment
  CAS-BOT-BC134981  Phoradendron bolleanum John F. Emmel 1971-4-17 342 Napa Butts Creek, 0.4 miles NW of junction Butts Canyon and Snell Valley roads 198 Comment
  UCD49307  Phoradendron leucarpum subsp. tomentosum A. Collier; D. Caterson and S. Kenady 2002-5-4 19 Napa Quail Ridge UC Reserve. At northern tip of ridge, N of the intersection of West and East roads. Located 20 m W of path leading to tip of the peninsula, in vicinity of power lines. 274 Comment
  JEPS110810  Phoradendron villosum Jake Ruygt 2001-3-1 4293 Napa near Routan Creek 259 Comment
  UCD149584  Phyla nodiflora Stephen P. Rae; Ayzik Solomeshch 2006-5-30 s.n. Napa On the north side of Soscol Ridge, south of the city of Napa, ca. 3/4 km east of Highway 121, on the south side of Soscol Creek. 25 Comment
  SEINET12320621  Phyla nodiflora C. W. Tilforth, Dourley, J. 1979-1 1858 Napa 0.4 MI S of Park Headquarters, W side of Lake Berryesa 137 Comment
  CAS-BOT-BC140550  Physocarpus capitatus E. Ruckert 1960-5-8 147 Napa 6495 Dry Creek Road, field west of gate 365 Comment
  JEPS44811  Physocarpus capitatus W. L. Jepson 1895-11-26 13847 Napa La Jota Plateau Howell Mt Comment
  UC466696  Physocarpus capitatus H. P. Chandler 1907-5-12 7565 Napa White Sulphur Spring St. Helena Comment
  RSA412034  Pickeringia montana var. montana Bonnie C. Templeton 1957-6-27 76 H371B Napa About 3 miles up Trinity Road near the junction to Oakville. Comment
  UC17042  Pickeringia montana var. montana Willis L. Jepson 1896-2-23 Napa La Jota Falls Napa River Basin, Howell Mt. Comment
  JEPS103974  Pilularia americana Jake Ruygt 1996-5-19 3712 Napa West of Barnett Road near Burton Creek, (Peju Pr)Pope Valley. 201 Comment
  JEPS120338  Pilularia americana Jake Ruygt 1998-5-23 3995 Napa Napa Airport Industrial Park, NW corner. Cuttings Wharf 7.5' Quad. Comment
  SD27919  Pinus attenuata Carl B. Wolf 1928-2-25 Napa Mount Saint Helena Grade Comment
  CAS-BOT-BC72882  Pinus ponderosa Peter H. Raven 1954-2-22 6417 Napa Hills n. of White Sulphur Spr., w. of St. Helena. 152 Comment
  JEPS48193  Pinus ponderosa Willis L. Jepson 1901-8-6 1733 Napa Hourell Mt. Napa River Basin, Hourell Mt. Comment
  CAS-BOT-BC72812  Pinus sabiniana James L. Reveal 1987-6-7 6405 Napa Along California Highway 128 between Winters and Rutherford, 5.5 miles southeast of Moskowite Corner, 243 Comment
  UCD118541  Pinus sabiniana Roxanne Faure; Plant Biology 102 Collectors 2012-5-5 1 Napa Las Posadas State Experimental Forest. Northeastern part of property, uphill and north of Recreation Flat, along undeveloped road. 417 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
  UCD74374  Plagiobothrys bracteatus Jake Ruygt 2008-5-21 5339 Napa Near Wildlake Ranch, pond south of Walnut Flat. St. Helena. 664 Comment
  SBBG117336  Plagiobothrys fulvus B. Crampton 1955-4-7 2436 Napa 7.8 mi N of Monticello Comment
  JEPS85055  Plagiobothrys nothofulvus Larry Heckard and Mary Ashton 1969-5-3 2229 Napa ca 7 mi ne Napa (off the Atlas Peak Rd); Mead Ranch 457 Comment
  RSA0051321  Plagiobothrys nothofulvus Keith E. Hoffmaster 1946-3-23 1040 Napa Napa range, along Napa-Monticello road. Comment
  SEINET10456330  Plagiobothrys nothofulvus John T. Middleton 1936-3-21 Middleton 71 Napa Comment
  SEINET12275936  Plagiobothrys scriptus P. H. Raven 1957-1 10741 Napa near the hot springs at the airport, Calistoga Comment
  JEPS129019  Plagiobothrys stipitatus var. micranthus Jake Ruygt 2016-5-7 6237 Napa Smittle Creek west of Lake Berryessa. Chiles Valley 7.5' Quad. Comment
  CAS-BOT-BC228493  Plagiobothrys strictus Peter H. Raven 1950-5-6 2024 Napa Near Old Faithful Geyser N of Calistoga 182 Comment
  CAS-BOT-BC228496  Plagiobothrys strictus Alice Eastwood 1915-6-5 4627 Napa Calistoga Comment
  CAS-BOT-BC228497  Plagiobothrys strictus David D. Keck 1931-4-4 1095 Napa Geysers just NW of Calistoga, NW county Comment
  JEPS24591  Plagiobothrys strictus E. L. Greene 1892-4-20 Napa Calistoga; about sulphur springs Comment
  UC353893  Plagiobothrys strictus Milo S. Baker 1927-5-1 2102 Napa near geysers; Calistoga Comment
  UC55921  Plagiobothrys strictus J. P. Tracy May 15 1903-May 18 1903 1857 Napa Calistoga Hot Springs Region about San Francisco Bay, Napa Valley 91 Comment
  UCD38370  Plagiobothrys strictus Beecher Crampton 1955-4-4 2388 Napa 2 miles north of Calistoga. Meadow supplied by waters of the Myrtledale Hot Springs. Comment
  RSA0008560  Plagiobothrys strictus D. D. Keck 1931-4-4 1095 Napa Geysers just NW of Calistoga, NW Napa County. 34 Comment
  JEPS106761  Plagiobothrys tenellus Jake Ruygt 1982-3-22 1143 Napa Kreuze Canyon 381 Comment
  JEPS68124  Plagiobothrys tenellus Mrs. D. O. Hunt 1909-4-8 Napa St. Helena Comment
  JEPS68146  Plagiobothrys tenellus W. L. Jepson 1938-5-25 18867 Napa Bell Canyon Napa Range, Howell Mt. 579 Comment
  UC573155  Plagiobothrys tenellus Herbert L. Mason 1926-3-14 2737 Napa near summit Mount St. Helena Comment
  UC632459  Plagiobothrys tener var. subglaber Beryl O. Schreiber 1938-4-24 2499 Napa 1/2 mi sw Knoxville; Reiff Quad. 609 Comment
Read comments
Jun 14 2013
  POM182728  Plantago erecta D. D. Keck 1931-4-3 1059 Napa Pope Creek canyon, 7 miles NW of Monticello Comment
  UCD49190  Plantago erecta S. Colby; L. Hanson, D. Bosworth, K. Sesser, and G. Belley 2001-4-14 10 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
  UC585983  Plantago erecta Joseph P. Tracy 1935-3-19 13765 Napa 4 mi nw Calistoga (Knight's Valley road); Northern Coast Ranges 213 Comment
  UCD124178  Plantago erecta Beecher Crampton 1959-5-26 5259 Napa Martley Canyon, Vaca Mountain. State Hwy. 218. Comment
  UCD15037  Plantago hookeriana Lorraine Clarke 1977-4-16 14 Napa California, Napa Co.; along Highway 128, 6.4 miles (by road) south - southwest of Monticello Dam; Comment
  UCR12028  Plantago lanceolata Coleta A. Lawler 1964-3-24 16 Napa Junction of Redwood Rd and Browns Valley Rd Comment
  RSA523626  Plantago lanceolata W. L. Jepson 1936-6-2 17612 Napa Hills to east of Yountville, on east side of road. Comment
  JEPS120327  Platystemon californicus Jake Ruygt 2002-4-17 4389 Napa North of Foss Valley, Atlas Peak Vineyards (Antinori). Rutherford 7.5' Quad. Comment
  JEPS51615  Platystemon californicus W. L. Jepson 1923-4-29 9894 Napa St. Helena 91 Comment
  HSC16791  Platystemon californicus Greg Bos 1963-3-30 67 Napa 7 mi. S of Middletown on Butts Canyon Rd. 305 Comment
  UCD167243  Platystemon californicus Jake Ruygt 1986-4-19 1712 Napa 0.4 mile east of Flosden Road on American Canyon Road. 146 Comment
  POM182730  Platystemon californicus var. californicus D. D. Keck 1931-4-2 1056 Napa Monticello Comment
  JEPS4815  Plectritis brachystemon Miss R. Kuhn 1912-5-19 Napa Oakville Comment
  JEPS4816  Plectritis brachystemon Miss R. Kuhn 1912-5-28 Napa Oakville Comment
  JEPS6140  Plectritis brachystemon Bacigalupi and Dempster 1954-5-10 4449 Napa 4.2 mi n of Wooden Valley (on Monticello Road); Monticello Road Comment
  UC650434  Plectritis ciliosa subsp. ciliosa Ira L. Wiggins 1928-3-24 2868 Napa above Calistoga (on old road to Lake County) Comment
  UCD21506  Plectritis congesta subsp. brachystemon Jake Ruygt; Louise Vincenzio, Land Trust of Napa County 2002-4-22 4408 Napa Quail Ridge Reserve. 243 Comment
  JEPS14267  Plectritis macrocera Bacigalupi and Dempster May, 1955 4446 A Napa between Chiles Valley and Monticello Valley Comment
  UC168965  Plectritis macrocera Joseph P. Tracy 1902-5-15 1483 Napa 3-4 mi e of Angwin's (at head of Moore's Creek, Howell Mountain); Northern Coast Ranges, Howell Mountain, Moore's Creek 365 Comment
  UCR27515  Plectritis macrocera John C. Roos 1939-3-27 263 Napa North Coast Ranges, Pope Valley Comment
  OBI8696  Plectritis magna Bacigalupi & Dempster, Dempster 1954-5-10 4444 Napa Conn Cyn Reservoir Comment
  UCD36170  Pleuropogon californicus Beecher Crampton 1952-3-24 1031 Napa Napa County, 8 miles north of city of Napa, along Silverado Road. Comment
  UC1103792  Poa howellii Joseph P. Tracy 1899-6-18 349 Napa 3-4 mi e Angwin's (head of Moore's Creek); Howell Mt 518 Comment
  UCD91104  Poa howellii Beecher Crampton 1956-5-25 3461 Napa Vaca Mountains, eastern slope of Wragg Canyon. Comment
  UCD91143  Poa howellii R. Tofsrud 1941-6-1 370 Napa near Calistoga. Comment
  CDA10845  Poa kelloggii G. F. Hrusa, G. L. Stebbins 1994-4-18 11782 A Napa North Coast Biodiversity Arena; Pope Valley. Along upper Swartz Creek N tributary (James Cr.). 213 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-BC6497  Poa napensis Alan Ackerman Beetle 1946-5-7 4256 Napa 2 miles N of Calistoga at Myrtledale Hot Springs Comment
  UCD91555  Poa napensis R. Tofsrud 1948-5-1 s.n. Napa Calistoga. Comment
  CAS-BOT-BC255949  Poa pratensis Peter H. Raven 1951-5-26 2890 Napa Howell Mtn. above Pope Valley 304 Comment
  CDA31320  Poa secunda D. G. Kelch 2010-5-6 10 .186-B Napa Wooden Valley Road, about 5 km north of Napa/Solano county line, north of Rockville. Comment
  UCD17976  Poa secunda Ellen Dean; with Plant Biology 102 class 2001-4-14 701 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, below stock pond. 152 Comment
  JEPS85020  Poa secunda subsp. secunda Larry Heckard and Mary Ashton 1969-5-3 2224 Napa 7 mi ne Napa (Mead Ranch, off Atlas Peak Rd, above and w of meadow) 510 Comment
  JEPS129037  Pogogyne douglasii Jake Ruygt 2016-5-25 6262 -Y Napa Missimer-Snell Valley Wildflower Preserve. Aetna Springs 7.5' Quad. Comment
  UCD77928  Pogogyne douglasii Robert E. Preston 2002-6-17 1821 Napa Pope Valley, along Pope Canyon Rd, 0.5 mi N of its jct with Pope Valley Cross Rd. 187 Comment
  UC25589  Pogogyne douglasii W. H. Brewer 1861-11-4 855 Napa Napa Valley Comment
  UCD125418  Pogogyne douglasii G. H. Vansell 1934-5-16 s.n. Napa Napa Valley. Comment
  UCD167141  Pogogyne serpylloides Jake Ruygt 2015-5-2 6086 i Napa West of Buck Mountain near Nevada. 598 Comment
  UC710616  Polycarpon tetraphyllum John Thomas Howell 1943-6-20 18242 Napa hills w of Napa Valley (between Mount St. John and St. Helena) 228 Comment
  UC852688  Polycarpon tetraphyllum Alice Eastwood 1915-6-5 4655 Napa Calistoga, along railroad Calistoga Comment
  SEINET6044076  Polycarpon tetraphyllum Unknown 1943-6-20 18242 Napa Hills west of Napa Valley between St. Helena and Mt. St. John. Comment
  UCD98411  Polycarpon tetraphyllum Irving Grover 1954-6-29 s.n. Napa from farm buildings. Comment
  UC109721  Polygala californica K. Brandegee Aug 1888 Napa Howell Mountain Comment
  POM126399  Polygala californica H. P. Chandler 1907-5-19 7581 Napa White Sulphur Spring, St. Helena Comment
  JEPS51314  Polygonum aviculare subsp. aviculare Willis L. Jepson 1893-9-24 Napa Angwin's Meadows Napa River Basin, Howell Mt. Comment
  UC1562686  Polygonum aviculare subsp. depressum Barbara Ertter with Elizabeth Neese 1988-10-2 7971 Napa ca 15 air mi nnw Napa (e of boat-launching ramp on se edge); North Coast Ranges, Conn Creek, Lake Hennessey 91 Comment
  JEPS50583  Polygonum bolanderi Willis L. Jepson 1893-9-21 14791 Napa Wooden Valley grade Napa River Basin Comment
  OBI10869  Polygonum bolanderi H. E. McMinn 1922-6-7 194 Napa Mt. Howell Comment
  POM215137  Polygonum bolanderi D. D. Keck 1933-11-10 2721 Napa 1 mile N of Yountville Comment
  UC6671  Polygonum bolanderi Bolander 1863-9-20 2649 Napa e Napa Valley; ; among rocks near Napa in field notes Comment
  UC77396  Polygonum bolanderi Katharine Brandegee Aug. 1888 Napa Howell Mountain 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
  JEPS112593  Polygonum hydropiperoides Jake Ruygt 1991-7-20 2771 Napa Lake Orville, Friesen's Lakes, Angwin 563 Comment
  JEPS115738  Polygonum lapathifolium Lowell Ahart 2009-10-12 16447 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 W 133 Comment
  UCR71485  Polygonum lapathifolium Barbara Ertter 1988-10-2 7962 Napa North Coast Ranges, Lake Hennesy c. 15 air miles north-northwest of Napa, on Conn Creek, east of boat-launching ramp on southeast edge. 91 Comment
  CAS-BOT-BC419831  Polygonum parryi John Thomas Howell 1940-5-19 15466 Napa Upper St. Helena Creek Comment
  JEPS115743  Polygonum punctatum Lowell Ahart 2009-10-12 16449 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 133 Comment
  CDA15453  Polygonum ramosissimum J. Glazner 1998-7-2 s.n. Napa San Francisco Bay Area; Napa River near mouth of Suscol Creek, ~1.5 mi. NW of Hwy 29/12 intersection. Comment
  UC440186  Polypodium calirhiza W. L. Jepson Nov. 1895 Napa St. Helena Comment
  UCD136973  Polypodium calirhiza D. H. Hartmann 1942-3-7 s.n. Napa Green Valley. Comment
  UCD83865  Polypodium glycyrrhiza Ellen Dean; Stephen Rae 2010-3-15 5823 Napa along Wooden Valley Road. E side of road. Lamb Vineyard property, along creek that runs through property. 188 Comment
  CDA34668  Polypogon interruptus L. Ahart 2009-10-12 16466 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
  JEPS100823  Polypogon interruptus Dean W. Taylor 2000-6-29 17471 Napa Zim Zim Creek, along the creek about 2.5 miles up from confluence of Eticuera Creek and Berryessa-Knoxville Road 259 Comment
  UC1004360  Polystichum W. W. Lipman 1954-9-24 Napa 3 mi n St. Helena (in grounds of Professor Lipman's home) Comment
  UC150411  Polystichum C. C. Parry June 1881 369 Napa Calistoga Comment
  JEPS116569  Polystichum californicum Jake Ruygt 1990-6-2 2574 Napa Sulphur Canyon. Kenwood 7.5' Quad. Comment
  CDA11615  Polystichum dudleyi G. F. Hrusa, G. L. Stebbins 1994-3-11 11613 Napa North Coast Biodiversity Arena; Las Posadas State Forest, immediately E of Fire Station. Comment
  CHSC102296  Portulaca oleracea Lowell Ahart 2009-10-12 16472 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
  CAS-BOT-BC445238  Portulaca oleracea J. H. Thomas 1964-6-28 10438 Napa At Charles Krug winery at St. Helena. Comment
  UCD116990  Prosartes hookeri Jillian Howard; Plant Biology 102 Collectors 2012-4-29 7 Napa Las Posadas State Experimental Forest. 0.25 road miles on dirt road that starts north of fire station. South side of road. 520 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
  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
  UCD73442  Pseudognaphalium californicum 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
  JEPS20447  Pseudognaphalium californicum Willis L. Jepson 1893-6-24 14741 Napa Napa River Basin, Howell Mountain Howell Mountain; Napa River Basin, Howell Mountain Comment
  CAS-BOT-BC356982  Pseudognaphalium luteoalbum John W. Willoughby 1979-5-25 4298 Napa Vaca Mountains. Pansy Flat (ca. 1 mile south of Signal Hill) 609 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
  UCD161687  Pseudognaphalium stramineum Jake Ruygt 2008-8-16 5367 Napa northeast of Napa Airport, Napa Sanitation ponds. 2 Comment
  UCD63177  Pseudognaphalium thermale Jake Ruygt 1988-8-14 2231 Napa Berryessa-Knoxville Rd. at Pope Canyon Road. 143 Comment
  RSA195368  Pseudotsuga menziesii Gilbert Muth 1967-2-12 528 Napa Below Martin Springs. 439 Comment
  JEPS106925  Psilocarphus oregonus Jake Ruygt 1982-5-12 1238 b Napa Suscol Plain 4 Comment
  JEPS106924  Psilocarphus tenellus Jake Ruygt 1993-4-12 3193 Napa Milton Road west of the Brazos Bridge a 0 Comment
  UCD63154  Psilocarphus tenellus var. tenellus Jake Ruygt 1991-5-6 2649 Napa Wantrup Preserve, Pope Valley. 195 Comment
  CAS-BOT-BC72605  Pteridium aquilinum Evelina Cannon 1901-7-20 s.n. Napa Johannisberg, Mt. Veeder Comment
  CAS-BOT-BC421125  Pterostegia drymarioides David D. Keck 1931-4-2 1024 Napa Wooden Valley Grade, west side of Napa Range, 5 miles NE. of Napa 170 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
  UCD92252  Puccinellia simplex R. Tofsrud 1949-4-1 s.n. Napa Calistoga, Myrtledale Hot Springs. Comment
  JEPS106407  Pyrola aphylla Jake Ruygt 1988-6-4 2217 Napa Mt. St. Helena <.5 mi. from HWY 29 on fire road 707 Comment
  UCD167051  Pyrola picta Jake Ruygt 1990-5-19 2558 Napa 1/2 mile north of Diamond Mtn. Rd. on HWY 29. 152 Comment
  JEPS106922  Pyrrocoma racemosa var. racemosa Jake Ruygt 1996-9-14 3788 Napa White Cliff Springs, on slope east of Soda Valley 338 Comment
  SFV890  Quercus X ganderi D. Q. Cavagnaro 1965-6-26 s. n. Napa La Jolla quicksilver mine, north slope of Mount St. John, 7 miles northwest of Oakville. Comment
  UC1184082  Quercus X morehus William E. Ferguson 1960-12-26 Napa ca 7 mi e Napa (s side of Mt. George, on trail to top of mountain); Mt. George 426 Comment
  UCR23941  Quercus X morehus John C. Roos 1939-4-16 281 Napa North Coast Range, Pacific Union College, Angwin, [Pope Valley] 240 Comment
  CAS-BOT-BC61809  Quercus agrifolia J. M. Tucker 1954-9-23 2757 Napa beside Highway 37, 6.5 miles (by road) south of junction with Highway 28 Comment
  CAS-BOT-BC61810  Quercus agrifolia unspecified 1939-10-1 s.n. Napa Napa Comment
  CLARK-A1528-2916  Quercus agrifolia John C. Roos 1939-4-16 283 Napa Angwin Comment
  JEPS37806  Quercus agrifolia W. L. Jepson 1937-4-10 18004 Napa Adam-and-Eve Ridge Howell Mt. Comment
  SEINET3140984  Quercus agrifolia Unknown 1995-6-11 sn Napa Homestead Area of McCormick Ranch, approx. 1.1 mi N of Bald Mnt. in Sugar Loaf State Park, and roughly 7 mi W of St. Helena 549 Comment
  UCD45016  Quercus agrifolia Willis L. Jepson 1901-11-17 1754 Napa Near St. Helena, Nov. 17, 1901 Comment
  CHSC47414  Quercus berberidifolia Lowell Ahart 1976-3-7 1024 Napa On steep hillsides, on the south side of the road and across a small stream, about 2 miles south-west of the Monticello Dam. 152 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
  UCD14676  Quercus berberidifolia John M. Tucker; and G. L. Stebbins 1950-11-5 2004 Napa California, Napa Co.; 11.5 mi. northwest of Monticello, beside road to Pope Valley; Comment
  UCD14832  Quercus berberidifolia John M. Tucker 1950-11-12 2014 -5 Napa California, Napa Co.; Highway 28, 7.7 mi. (by road) west of junction with Highway 37; Comment
  UCD45215  Quercus berberidifolia D. Q. Cavagnaro 1963-9-13 38 Napa On eastern side of range between Sonoma and Napa Valleys, 5 miles southwest of Oakville, Napa County, California. Comment
  CAS-BOT-BC62456  Quercus chrysolepis Bell Richardson Jackson 1924-8-1 s.n. Napa Mt. St. Helena Comment
  UCD45450  Quercus chrysolepis Verne Grant Date Unknown s.n. Napa Below Douglas fir forest; northeast slope of Napa Range, Lokoya, Napa County, California. Comment
  UCD83394  Quercus chrysolepis Jake Ruygt 1991-5-4 2636 Napa Friesen's Lakes, Lake Henne. 548 Comment
  UC993147  Quercus douglasii J. M. Tucker 1948-9-5 1868 Napa ca 0.25 mi e Sonoma-Napa County line (s side of Highway 12) Comment
  UCD37729  Quercus douglasii Beecher Crampton 1961-9-19 5977 Napa Napa County, 3 miles east of Moskowite Corner, along State Highway 128, divide between Wragg Canyon and Capell Valley. Comment
  UCD45739  Quercus douglasii John M. Tucker 1954-9-23 2755 Napa East side of Highway 37 .1 mile south of junction with Wooden Valley Road (about 9.5 miles north-east of Napa), Napa County, California. Comment
  JEPS46658  Quercus dumosa W. L. Jepson 1896-2-23 Napa Howell Mt. Comment
  CDA21881  Quercus durata State Employee 1957-11-13 Napa Knoxville. 0 Comment
  JEPS121551  Quercus durata Adam C. Schneider with Dick O'Donnell 2013-5-26 194 Napa Along Chiles Valley Road. Comment
  JEPS37340  Quercus durata W. L. Jepson 1894-10-13 Napa Upper Conn Valley Comment
  RSA118984  Quercus durata John H. Thomas 1955-5-21 5164 Napa Near State Highway No. 128 and Capell Creek, about 12 miles east of St. Helena. 244 Comment
  RSA38487  Quercus durata Carl B. Wolf 1944-11-1 11483 Napa 2.2 miles east of Lake County line, between Knoxville and Lower Lake. 457 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
  SACT002640  Quercus durata Ira Wiggins, R. Ferris 1933-6-2 Napa 10 miles north of Howell Mount Comment
  UCD14807  Quercus durata John M. Tucker; with G. L. Stebbins 1950-11-5 2007 -5 Napa California, Napa Co.; beside road up Howell Mountain, 5.6 mi. north of St. Helena; Comment
  UCD14818  Quercus durata John M. Tucker; with G. L. Stebbins 1950-11-5 2011 -7 Napa California, Napa Co.; below Conn Valley Dam, Comment
  UCD14824  Quercus durata John M. Tucker; with G. L. Stebbins 1950-11-5 2011 -20 Napa California, Napa Co.; below Conn Valley Dam, Comment
  UCD14842  Quercus durata John M. Tucker 1950-11-12 2014 -20 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
  UCD170830  Quercus durata 2018-4-28 2 Napa Cedar Roughs Wildlife Area, to the west of Lake Berryessa, on the south side of Pope Creek and Pope Canyon Road. Along Dollarhide Road (undeveloped road/trail) on the west side of Maxwell Creek. 158 Comment
  UCD45976  Quercus durata D. Sanchez-Mata 1996-6-22 s.n. Napa Capell Valley. 380 Comment
  JEPS116535  Quercus garryana Jake Ruygt 1984-3-28 1510 Napa West of end of Whitehall Lane. Rutherford 7.5' Quad. Comment
  UCD148750  Quercus garryana Jake Ruygt 1999-5-14 4152 Napa Napa County; Lake Hinman, west of Yountville Veteran's Home. 109 Comment
  UCD46113  Quercus garryana W. L. Jepson 1916-8-6 6825 Napa Howell Mt. Comment
  UCD46206  Quercus garryana John M. Tucker 1950-11-5 2005 1 Napa California, Napa Co.; near Angwin, on Howell Mountain, beside road from Pope Valley. (Collections made from 8 trees). Comment
  UCD46058  Quercus garryana var. garryana J. M. Tucker 1952-4-22 2359 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
  UCD46082  Quercus garryana var. garryana W. L. Jepson 1916-8-6 6833 Napa Howell Mt. Comment
  UCD46100  Quercus garryana var. garryana J. M. Tucker 1952-4-22 2356 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
  CAS-BOT-BC105295  Quercus kelloggii Peter H. Raven 1952-5-29 4093 Napa Napa River 1 mi N Napa 60 Comment
  JEPS116534  Quercus kelloggii Jake Ruygt 1994-3-21 3332 Napa Lewelling Ranch, Sulphur Springs Road, St. Helena. Rutherford 7.5' Quad. Comment
  JEPS37761  Quercus kelloggii Willis L. Jepson 1901-8-6 1719 Napa St. Helena Napa River Basin Comment
  JEPS46695  Quercus kelloggii W. L. Jepson 1938-10-1 19070 Napa St. Helena Sanitarium Comment
  RSA476819  Quercus kelloggii T. Gertrude Williamson 1924-7-5 s.n. Napa Near St. Helena. Comment
  UC615441  Quercus kelloggii Beryl O. Schreiber 1932-4-3 200 Napa road to Calistoga 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
  UCD45331  Quercus kelloggii 1965-6-26 s.n. Napa La Jolla quicksilver mine, north slope of Mt. St. John, 7 miles northwest of Oakville, Napa County, California. Comment
  UCD46655  Quercus kelloggii D. Sanchez-Mata; M. G. Barbour 1996-5-12 s.n. Napa Lake Berryessa. Pope Creek. Open woodland. 380 Comment
  UCD46705  Quercus kelloggii W. L. Jepson 1900-3-8 505 Napa St. Helena, Napa River Basin. Comment
  UCD46714  Quercus kelloggii J. M. Tucker 1966-4-17 3937 Napa Mt. Helena, 0.4 mile over the north side from the summit of the road (State Highway 29), Napa County, California. Comment
  SEINET5644379  Quercus kelloggii D. Q. Cavagnaro 1963-10-18 225 Napa At Napa Valley Ranch Club road junction, 2.8 miles west of Moskowite Corners.; 0 Comment
  JEPS116532  Quercus lobata Jake Ruygt 1992-7-14 3093 Napa Yountville Ecological Reserve, Yountville Cross Road, Napa River. Yountville 7.5' Quad. Comment
  JEPS116539  Quercus lobata Jake Ruygt 1988-5-1 2164 Napa Aetna Springs Road near resort. Aetna Springs 7.5' Quad. Comment
  CAS-BOT-BC104978  Quercus wislizeni Carl B. Wolf 1928-5-4 1862 Napa Mt. St. Helena Comment
  CLARK-A1528-2913  Quercus wislizeni John C. Roos 1939-4-16 284 Napa Angwin Comment
  UCD168566  Ranunculus californicus Stephen P. Rae; A. Solomeshch 2007-3-17 s.n. Napa Nickel Property at 1730 Conn Valley Road north of Lake Hennessy, near end of Conn Valley Road, ca. 1/3 km east of Greenfield Road. 125 Comment
  UC9417  Ranunculus californicus Willis L. Jepson 1893-4-24 Napa hills e St. Helena; Napa River Basin Comment
  UCD95959  Ranunculus californicus David Lawfer 1952-3-15 119 Napa Napa. Comment
  CAS-BOT-BC378488  Ranunculus californicus var. californicus Peter H. Raven 1953-3-29 5202 Napa Calistoga 106 Comment
  UC9420  Ranunculus canus Willis L. Jepson 1893-5-1 Napa Upper Napa Valley Napa River Basin Comment
  UCD96154  Ranunculus hebecarpus J. M. Tucker 1977-4-24 4388 Napa above Eticuera Creek, west side of Berryessa - Knoxville Road, 15.6 miles (by road) north of junction with Pope Canyon Road (2.3 miles southeast of Knoxville Mine.) 304 Comment
  POM269862  Ranunculus lobbii Lyman Benson 1935-2-25 6249 Napa Calistoga. 152 Comment
  UCR30447  Ranunculus muricatus John C. Roos 1939-4-18 s.n. Napa North Coast Range, Pacific Union College; Angwin 549 Comment
  UCD96259  Ranunculus muricatus M. Wiesendanger 1926-4-1 1489 Napa Napa County. Comment
  SEINET197738  Ranunculus occidentalis R. C. Bechtel 1952-3-16 18 Napa Putah Canyon Comment
  JEPS55167  Ranunculus occidentalis W. L. Jepson 1897-5-2 Napa near St. Helena; Napa Valley Comment
  UCD96938  Ranunculus occidentalis H. Popenoe 1949-4-17 9 Napa 17 miles from Winters, at entrance to Monticello Valley. Comment
  UCD117469  Ranunculus occidentalis var. occidentalis Roisin Murphy-Deak; Plant Biology 102 Collectors 2012-4-29 5 Napa Las Posadas State Experimental Forest. Just northeast of fire station. Along roadside opposite drainage pipe. 519 Comment
  RSA92781  Ranunculus orthorhynchus var. bloomeri Peter H. Raven 1950-4-15 1708 Napa [Unspecified] 9 Comment
  SBBG28539  Ranunculus orthorhynchus var. orthorhynchus P. H. Raven 1950-4-15 1708 Napa Napa 9 Comment
  UCD160034  Raphanus raphanistrum Steve Wathan 2015-3-10 2015- 1 Napa McLaughlin UC Reserve. Knoxville Mine site, ca. 7 miles south of McLaughlin Field Station. 396 Comment
  UCD160037  Raphanus raphanistrum Steve Wathan 2015-3-10 2015- 2 Napa McLaughlin UC Reserve. Knoxville Mine site, ca. 7 miles south of McLaughlin Field Station. Collected near old mill foundation. 396 Comment
  UCD115232  Raphanus sativus M. R. Wanzer 1948-5-6 13 Napa Putah Canyon, 8.5 miles west of Winters. Comment
  CAS-BOT-BC362893  Rhagadiolus stellatus John Thomas Howell 1980-5-15 53451 Napa Oakville Grade sw. of Oakville 152 Comment
  CAS-BOT-BC362894  Rhagadiolus stellatus John Thomas Howell 1980-5-15 53451 Napa Oakville Grade sw. of Oakville 152 Comment
  UC1419855  Rhagadiolus stellatus N. Harrison 1976-5-7 1321 Napa Trinity Road near intersection <with> Wall Road Comment
  UCD63166  Rhagadiolus stellatus Jake Ruygt 1979-4-24 553 Napa 2.2 miles NW of Browns Valley Rd. on Redwood Rd. 109 Comment
  CAS-BOT-BC362897  Rhagadiolus stellatus T. C. Fuller 1961-6-15 6336 Napa G. A. Wilson ranch, Dry Creek Road, 2 mi. w. of Yountville Comment
  OBI5246  Rhagadiolus stellatus T. C. Fuller 1961-6-15 6336 Napa G.A. Wilson ranch, Dry Crk Rd, 2mi W of Yountville Comment
  RSA7786  Rhamnus californica Carl B. Wolf 1928-5-4 1856 Napa Upper slopes of Mount St. Helena. Comment
  JEPS42077  Rhamnus californica subsp. californica Miss Frida Niedermuller 1908-9-7 Napa St. Helena Comment
  JEPS41998  Rhamnus crocea Willis L. Jepson 1893-5-2 13971 Napa e of Calistoga (Pope Valley grade from Calistoga); Napa River Basin Comment
  UCD73432  Rhamnus crocea 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-BC56019  Rhamnus ilicifolia H. E. McMinn 1922-3-27 55 Napa Slope on Mt. St. Helena Comment
  UCD160730  Rhamnus ilicifolia Ellen Dean 2015-5-23 8782 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
  UCD48086  Rhamnus ilicifolia Ryan Knox; E. McDermott, G. Walden 2002-4-13 7 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, near Knoxville Creek. 432 Comment
  UC1197982  Rhamnus tomentella subsp. tomentella Joseph P. Tracy 1899-6-19 388 Napa 3-4 mi e Angwin's (on hills at head of Moores Creek); Northern Coast Ranges, Howell Mountain, Moores Creek 365 Comment
  JEPS58755  Rhododendron occidentale W. L. Jepson 1924-4-27 10379 Napa e Mt. St. Helena (along St. Helena Creek); e of Mt. St. Helena, along St. Helena Creek Comment
  UC1221788  Rhododendron occidentale Beecher Crampton 1959-5-11 5204 Napa slopes above Capell Creek (n end of Capell Valley); Capell Valley Comment
  UCD20697  Rhododendron occidentale A. T. Leiser 1984-9-23 BC 7 Napa Napa County, Butts Canyon Rd/ Pope Valley Rd. near Butts Creek. NE side of Pope Valley Rd. from Shell Valley Rd S. along Butts Canyon Rd (Pope Valley Rd.) from 0.1 miles to 0.8 miles S., both sides of Butts Creek, but upstream SW side. Comment
  SEINET6165491 Image available Rhododendron occidentale Unknown 1981-5-18 s.n. Napa 9.9 mi S of middleton, down Butts Canyon Rd. Comment
  UCD63047  Rhus aromatica Daniel Sanchez Mata 2006-6-11 s.n. Napa Berryessa-Knoxville Road pr. Foley Creek close to UC McLaughlin Reserve. 460 Comment
  POM339720  Rhus trilobata F. R. Fosberg 1967-4-1 48417 Napa Hills just south of Lake Berryessa Comment
  UC11500  Ribes californicum Willis L. Jepson 1893-5-2 Napa near Palisades; Napa River Basin, New Pope Valley grade Comment
  CAS-BOT-BC168937  Ribes malvaceum Milo S. Baker 1931-4-1 5096 Napa In canyon 5 mi. N.E. of Napa on Monticello Road, on north side. Comment
  JEPS126069  Ribes malvaceum Jake Ruygt 2007-5-19 5184 Napa Devilhead Road, top of grade, north end. Knoxville 7.5' Quad. Comment
  CAS-BOT-BC198891  Ribes roezlii var. cruentum C. B. Wolf 1928-2-25 1499 Napa Mt. St. Helena Inn at summit of Mt. St. Helena Grade Comment
  JEPS49466  Ribes roezlii var. cruentum Willis L. Jepson 1893-5-5 13523 Napa below Toll-House (Middleton grade); Napa River Basin, Mt. St. Helena Comment
  UC572662  Ribes roezlii var. cruentum Herbert B. Kaufner 1937-2-26 19 Napa Devil's Well Upper Mill Creek Canyon 518 Comment
  UCD167061  Ribes sanguineum var. glutinosum Jake Ruygt 1999-5-18 4165 Napa Skyline Park, along Marie Creek Road near lake. 244 Comment
  JEPS34851  Rigiopappus leptocladus Willis L. Jepson 1893-5-8 Napa grade below New Eden; Napa River Basin, Howell Mountain 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
  UC165852  Rigiopappus leptocladus J. P. Tracy 1902-5-15 1473 Napa 3 to 4 mi e Angwin's (Head of Moores Creek); Howell Mountain, Moores Creek 457 Comment
  UCD18103  Rigiopappus leptocladus Ellen Dean; with Plant Biology 102 class 2000-4-22 612 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
  CAS-BOT-BC74595  Rorippa curvisiliqua Peter H. Raven 1952-5-29 4079 Napa Napa River 1 mile north Napa. 60 Comment
  UC10724  Rorippa curvisiliqua Willis L. Jepson 1893-4-27 Napa Veteran's Home , Veteran's Home (Napa River Basin) Comment
  CHSC103005  Rorippa curvisiliqua var. orientalis Lowell Ahart 2009-10-12 16434 Napa Below the high water line of Lake Berryessa, along Capell Creek northeast of Rest Area, 3/4 mile northeast of Highway 128 on Berryessa Knoxville Road, 3/4 mile soutwest of Capell Cove Launch Ramp on Berryessa Knoxville Road, about 19 miles (air) west of Winters. 133 Comment
  JEPS129101  Rosa californica Jake Ruygt 2016-5-3 6228 Napa Ridge S of Oil Well Road; E side of Lake Berryessa. Lake Berryessa 7.5' Quad. Comment
  JEPS77931  Rosa californica Edward Lee Dec. 1935 1676 Napa 1/2 mi s south junction of Napa-Monticello Road ((between the Howell and Vaca Mts.)); Wooden Valley Comment
  CAS-BOT-BC148155  Rosa gymnocarpa Peter H. Raven 1952-5-26 4049 Napa Howell Mt. 426 Comment
  JEPS45681  Rosa gymnocarpa W. L. Jepson 1896-2-23 13892 Napa on grade beyond Angwins (e side of mt.); Howell Mt., Pope Valley Grade Comment
  UC126647  Rosa gymnocarpa Harley P. Chandler Sep 7 1906-Sep 14 1906 7112 Napa Alta Loma Ranch Howell Mountain 487 Comment
  UC12905  Rosa gymnocarpa Willis L. Jepson 1894-4-30 Napa w Calistoga; Napa River Basin, Rebecca Ranch grade 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
  UCD113904  Rosa spithamea Heidi E. M. Dobson 1978-5-6 320 Napa East slope of Mt. Veeder. Comment
  UCD17677  Rubus H. Olmo; T. S. Mallah 1953-4-3 53 34 Napa California. Napa County: 0.5 miles south of Redwood Lodge along Highway 128. Near Rt. 1B X 234. Comment
  UCD17680  Rubus armeniacus H. Olmo; T. S. Mallah 1953-4-8 53 82 Napa California. Napa County: 0.5 miles south of Redwood Lodge along Highway 128. Near Rt. 1B X 234. Comment
  JEPS110650  Rubus discolor Jake Ruygt 1987-7-11 2066 Napa .2 mile west of Mt. Millhouse Camp on HWY 29 487 Comment
  UCD164828  Rubus ulmifolius var. ulmifolius Jake Ruygt 2012-6-30 5872 Napa Putah Creek. 143 Comment
  SBBG128000  Rumex dentatus L. Ahart 2009-10-27 16492 Napa below the high water line of Lake Berryessa, ca. 50 yards SE of Eticuera Crk, ca. 150 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
  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
  JEPS107239 Image available Rupertia physodes Jake Ruygt 1988-5-3 2175 Napa .3 miles north of Oak Knoll Ave. on Silverado Trail 15 Comment
  UCD54296  Saccharum ravennae Jeffrey L. Firestone 2004-7-14 1 Napa McLaughlin Reserve; precisely at the intersections of Sections 1,2,11,12 of Range 5W, Township 11N. Alternately near waterline of holding ponds at western base of site 5 waste rockpile, to the southwest of the Homestake main pit and the former Manhattan mine site. Comment
  UCD149605  Sagina apetala Stephen P. Rae; Ayzik Solomeshch 2006-5-30 s.n. Napa On the north side of Soscol Ridge, south of the city of Napa, ca. 3/4 km east of Highway 121, on the south side of Soscol Creek. 25 Comment
  JEPS120391  Sagina subulata Jake Ruygt 1979-5-14 592 Napa Trefethen Winery, Oak Knoll Comment
  UC1093859  Salicornia virginica Herbert L. Mason 1923-10-6 773 Napa Suisun Marsh Comment
  CAS-BOT-BC103228  Salix bonplandiana Peter H. Raven 1953-4-2 5228 Napa Imola 60 Comment
  SD958  Salix breweri Mrs. H. P. Bracelin 1931-4-17 253 Napa Butt Canyon, between Pope Springs and Aetna Valley, glade on wooded hillside 299 Comment
  UC481209  Salix breweri Ball, Bracelin, Parks and Parks 1931-4-21 26 Napa near junction with St. Helena Creek (about 6 km s of Middletown, about 120 m above creek mouth); Mirabel Creek 420 Comment
  UC482099  Salix breweri Mrs. H. P. Bracelin 1931-4-17 253 Napa between Pope Springs and Aetna Valley; Butt Canyon Comment
  UCD164792  Salix breweri Jake Ruygt 1994-3-5 3406 Napa Hunting Creek. 280 Comment
  CAS-BOT-BC108192  Salix hindsiana H. L. Mason 1926-3-14 2719 Napa Along stream in grove, Mount St. Helena Comment
  UCD73497  Salix laevigata Ayzik Solomeshch 2007-5-30 s. n. Napa northwest of the city of Napa. Woolls Ranch, 1032 Mt. Veeder Road. 152 Comment
  JEPS13066  Salix lasiandra var. lasiandra Willis L. Jepson 1903-9-6 2340 Napa St. Helena Napa River Basin, St. Helena Comment
  CAS-BOT-BC107048  Salix lasiolepis C. R. Ball; H. E. Parks 1931-2-17 19 Napa One mile northwest of Calistoga Comment
  JEPS13840  Salix lasiolepis Willis L. Jepson 1893-3-13 32 s Napa hills e of St. Helena; Napa River Basin Comment
  POM202751  Salix lasiolepis I. L. Wiggins 1932-3-12 5751 Napa N fork of the Napa River. 1 mile N of Calistoga. Comment
  RSA3944  Salix lasiolepis I. L. Wiggins 1932-3-12 5751 Napa N fork of the Napa River. 1 mile N of Calistoga. Comment
  JEPS38360  Salix scouleriana Willis L. Jepson 1903-9-6 2344 Napa St. Helena; Napa River Basin, St. Helena Comment
  CAS-BOT-BC176909  Salsola tragus Peter H. Raven 1952-9-14 5186 Napa Napa State Game Farm 121 Comment
  SFV8449  Salvia columbariae P. Warner 1967-4-16 44 Napa North Coast Ranges Vaca Mountains. 0.7 miles above (west) of Monticello Dam, Lake Berryessa. 152 Comment
  SEINET7972676  Salvia columbariae W. Roderick 1967-5-7 s.n. Napa Oakville Road. 152 Comment
  JEPS62781  Salvia sonomensis W. L. Jepson 1897-5-2 14945 Napa sw of Calistoga (Rebecca Ranch grade, Napa Valley); Napa Valley Comment
  SEINET7073054  Sanicula bipinnata A. G. Vestal 1963-4-8 s.n. Napa Weedy flat on Route 128 about 5.2 miles east of the turn off to Pope Valley Road. Coordinate datum: NAD27. Comment
  UC1197107  Sanicula bipinnatifida J. P. Tracy 1899-6-26 410 Napa 3-4 mi e of Angwin's (Howell Mountain, Head of Moore's Creek); Howell Mountain, Moore's Creek 365 Comment
  UCD128014  Sanicula bipinnatifida M. Wiesendanger 1927-5-4 679 Napa Near Monticello. Comment
  RSA195384  Sanicula bipinnatifida Gilbert Muth 1967-4-9 623 Napa near Cassidy Creek 335 Comment
  UC658996  Sanicula bipinnatifida Mildred E. Mathias 1938-4-24 1333 Napa e side of Mount St. Helena Mount St. Helena 457 Comment
  UCSB4638  Sanicula bipinnatifida Keator, Glenn 1959-4-1 Napa About 0.2 miles south of northwest Calistoga city limits on highway 128 Comment
  UCD112046  Sanicula crassicaulis Christopher Mallek 2008-5-12 AS2- 6 Napa Aetna Springs. 668 Comment
  UCD95923  Sanicula laciniata Ellen Dean; with Clare Loughran 2011-5-20 7056 Napa On the border of Sonoma County. Private property at 4028 Spring Mountain Road. West of the town of St. Helena. Western side of property. 608 Comment
  UC1197076  Sanicula tuberosa J. P. Tracy June 13,1899 - June 17, 1899 411 Napa 3-4 mi e of Angwin's (Head of Moore's Creek, Howell Mountain); Howell Mountain, Moore's Creek 365 Comment
  RSA15674  Saxifraga californica Carl B. Wolf 1928-2-25 1496 Napa Mt. St. Helena Grade, 2 mi. below Hawkins Mt. Camp. Comment
  JEPS104491  Scandix pecten-veneris Jake Ruygt 1979-4-14 518 Napa Oat Hill Mine Rd., near Calistoga 207 Comment
  JEPS943  Scandix pecten-veneris W. L. Jepson 1922-4-21 9625 Napa Napa Junction Comment
  JEPS944  Scandix pecten-veneris W. L. Jepson 1893-1 14242 Napa Napa Valley, Oak Knoll Oak Knoll; Napa Valley, Oak Knoll Comment
  UC765478  Scandix pecten-veneris R. F. Hoover 1941-4-27 4942 Napa Napa Junction 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
  JEPS121367  Scirpus acutus var. occidentalis Jake Ruygt 1993-4-20 3215 Napa Yountville Ecological Reserve, Youngville Cross Rd. 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
  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
  UCD160790  Scutellaria siphocampyloides Ellen Dean; D. Potter, D. Hickson, R. Ruygt, C. Donkers 2015-5-2 8670 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
  RSA518791  Scutellaria siphocampyloides Barbara Ertter, Annetta Carter 1989-5-28 8504 Napa Berryessa-Knoxville Road N of Lake Berryessa, 4.7 miles S of Knoxville tunnel, along Eticuera Creek. 305 Comment
  UC1713646  Scutellaria siphocampyloides Goff and Calvi 1936-5-1 Napa 5.5 mi from Napa (on Monticello Road up old wagon road 1/4 mi, (then left to on top of ridge near eucalyptus tree)); North Bay Counties Comment
  JEPS2847 Image available Scutellaria tuberosa var. similis W. L. Jepson 1893-5-2 14940 Napa grade near summit Napa River Basin, New Pope Valley; New Pope Valley grade near summit, Napa River Basin Comment
  UCD149716  Sedella pumila Stephen P. Rae; Ayzik Solomeshch 2007-3-14 s.n. Napa Signorello Winery, 4500 Silverado Trail, ca. 1/4 km east of Silverado Trail. 65 Comment
  RSA41992  Sedella pumila Ella Dales Cantelow 1939-5-7 2531 Napa Near cemetery, Napa. Comment
  CAS-BOT-BC63831  Sedum spathulifolium Alice Eastwood 1915-6-6 4692 Napa Mt. St. Helena Comment
  CAS-BOT-BC63835  Sedum spathulifolium John H. Thomas 1955-5-21 5126 Napa Sarco Creek drainage, near Hwy 37, about 6 mi from Napa. 274 Comment
  UCD102078  Sedum spathulifolium R. H. Miller 1949-5-8 50 Napa approximately 10 miles northeast of Napa, on Highway 37. Comment
  RSA670107  Selaginella wallacei James French 1969-2-15 s.n. Napa 7 miles NE of Napa on State Hwy 121. Comment
  UCR45099  Senecio clevelandii L. F. LaPre 1986-7-11 s.n. Napa Inner North Coast Ranges, Tributary to Hunting Creek, 1 mi south of Dunningan Hill, near the Lake Co. line 400 Comment
  RSA183412  Senecio sylvaticus Elden Parchim 1964-4-25 s.n. Napa Summit of Oakvillegrade Road, ca. 4 miles southwest of Oakville. Comment
  UCD19953  Senecio vulgaris E. A. Dean; Virginia Boucher 2002-2-28 894 Napa Quail Ridge Reserve. Along West Rd. 0.7 airline miles N of junction of West Rd. and Decker Canyon Trail. 213 Comment
  JEPS122692  Sesuvium verrucosum Jake Ruygt 1991-10-23 2842 Napa Napa River, northeast of Slaughterhouse Point. Quad: Cuttings Wharf. Comment
  UCD167172  Sidalcea calycosa subsp. calycosa Jake Ruygt 1982-6-21 1332 Napa Suscol Plain near Kaiser Steel, Rocktram. 1 Comment
  UCD81824  Sidalcea diploscypha Ellen Dean 2009-4-24 5451 Napa Property on the SE slope of Mt. St. Helena. 3860 Hwy 29. 297 Comment
  SBBG4683  Sidalcea diploscypha H. and M. Dearing 1939-5-2 3354 Napa near Napa Comment
  UCD116608  Sidalcea diploscypha Richard Beaver 1965-5-1 147 Napa 4.5 miles north of Calistoga, State Highway 29. Comment
  JEPS110706  Sidalcea hartwegii Jake Ruygt 1985-5-18 1595 Napa west of Veteran's Home toward L. Hinman 182 Comment
  UCD116728  Sidalcea hartwegii T. Adams 1998-5-10 9 Napa about 3 miles up Soda Canyon Road, across the road from the 'Soda Hole. 198 Comment
  UC198240  Sidalcea hartwegii H. P. Chandler 1907-5-8 7567 Napa White Sulphur Spr. , White Sulphur Spr. (St. Helena) Comment
  UCD20538  Sidalcea keckii E. Dean; w/ PLB 102 class 2002-4-4 1000 Napa McLaughlin UC Reserve. Along Knoxville-Berryesa road just W of turnoff to old town of Knoxville, N side of road. 441 Comment
  JEPS67230  Sidalcea malviflora subsp. laciniata Willis L. Jepson 1893-4-26 14076 Napa Vineland Napa River Basin, Napa Valley, Vineland Comment
  UC18933  Sidalcea oregana subsp. hydrophila Willis L. Jepson 1893-9-24 Napa Angwin's Napa River Basin, Howell Mt., Angwin's (Howell Mt.) Comment
  UC161053  Silene antirrhina Joseph P. Tracy 1902-5-16 1496 Napa 3-4 mi e Angwin's (on hills at head of Moore's Creek, Howell Mountain); Northern Coast Ranges, Howell Mt., Moore's Creek 457 Comment
  JEPS106851  Silene californica Jake Ruygt 1981-5-13 1022 Napa .2 miles east of Flosden Rd. on north side American Canyon 164 Comment
  CAS-BOT-BC384429  Silene coronaria Peter H. Raven 1952-5-26 4032 Napa St. Helena to Howell Mt. 91 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
  RSA52708  Silene gallica I. L. Wiggins 1949-4-30 12074 Napa Along old toll road between Calistoga and Middletown, about 1.5 mi NE of Calistoga. 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
  UCD148760  Silene laciniata subsp. californica Jake Ruygt 1979-5-24 632 Napa Napa County; Hwy. 128 2.1 miles east of Silverado Trail. 103 Comment
  UCD160671  Silene laciniata subsp. californica Ellen Dean; Susan Harrison, Sharon Strauss 2015-5-10 8744 Napa Butts Canyon. Along Butts Canyon / Guenoc Road, just NW of Shell Valley Road turnoff. South side of road. 233 Comment
  UCD148757  Silene verecunda Jake Ruygt 1998-6-22 4047 Napa Napa County; Buzzard's Roost. 617 Comment
  CAS-BOT-BC75287  Sisymbrium officinale Betty H. Johnson 1958-6-15 640 Napa 0.25 mile above Mt. Mill House, 6.4 miles southwest of Middletown. Comment
  UCD164749  Sisymbrium orientale Jake Ruygt 2014-5-30 5966 Napa Atlas Peak Road about 4.5 miles north of Monticello Road. 454 Comment
  UCD138801  Sisyrinchium bellum D. C. Finfrock 1950-4-2 12 Napa 2 miles from St. Helena on road to Pope Valley. Comment
  UCD148827  Sisyrinchium bellum Ellen Dean; Diana Hickson 2014-4-29 8132 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 606 Comment
  UCR47042  Sisyrinchium bellum J. Nevin 1987-4-12 01 Napa Coast Range, Napa. East end of Brown's Valley, 1 mi on Buhman Ave. from Brown's Valley Road 61 Comment
  RSA125805  Sisyrinchium bellum Peter H. Raven 1958-5-5 10740 Napa Near the Hot Springs, Calistoga. 91 Comment
  UCD16048  Sisyrinchium bellum C. L. Hallock; C. Kennedy, L Condon, N. Strahan, R. Flannery 2000-4-22 22 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, 1.5-3 dm tall, solitary purple flowers with 6 clawed petals. Comment
  SEINET4171098  Sisyrinchium douglasii Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-7 15090 Napa Under Chaparral, 20 miles north of Napa Comment
  JEPS113973  Smilax californica Jake Ruygt 1999-5-30 4175 Napa Sulphur Creek about 1/2 mile below the resort. Rutherford 7.5' Quad. Comment
  JEPS110921  Solanum americanum Jake Ruygt 1986-7-13 1880 Napa SW of Buchli Sation near countyline 1 Comment
  UCD170148  Solanum parishii Daniel Potter; N Khuu, C Donkers, A Yip, M Simon 2015-2-28 734 Napa Knoxville Wildlife Area 257 Comment
  CDA34153  Solanum rostratum L. Ahart 2009-10-27 16494 Napa About 50 yards southeast of Eticuera Creek, and about 150 yards south of Eticuera Parking Area at the northeast end of the causeway, on the south side of Berryessa Knoxville Road. Approximately, 20 miles (air) northwest of Winters. 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
  OBI9134  Solanum umbelliferum R. L. Hoover 1968-4-11 21 Napa 1 block W of hwy 1 on Palm Ave, Marina Comment
  UCD49295  Solanum xanti E. Gottschalk; C. Brassey and L. Hamamoto 2001-4-28 4 Napa Quail Ridge Reserve, SE corner of Lake Berryessa, just W of Monticello Dam. Along West Road, N of jct with South Decker Canyon Rd. in a shady gully downslope of road. Comment
  UCD40899  Solanum xanti Katherine Countrey 1983-4-22 4 Napa About 8 miles east of Winters on Hwy 128 at the Monticello Dam Parking area. Comment
  UCD67965  Solanum xanti Allen Gilbert 1974-4-28 22 Napa Near Lake Berryessa, approximately 2 miles West of Monticello dam, on highway 128. 76 Comment
  UC88138  Solidago elongata K. Brandegee Sep 1888 Napa Howell Mountain Comment
  JEPS106874  Solidago spathulata Jake Ruygt 1987-7-27 2082 Napa 4.0 miles east of Atlas Peak Rd. on Mont icello Rd. 441 Comment
  JEPS106875  Solidago velutina subsp. californica Jake Ruygt 1987-6-14 2043 Napa 2.5 miles west of Madronna Ave.on Spring Mountain Rd. 274 Comment
  JEPS18729  Soliva sessilis Willis L. Jepson 1893-5-8 14874 Napa Howell Mt. grade below New Eden; Napa River Basin, Howell Mt. Comment
  UCD149677  Soliva sessilis Stephen P. Rae; Ayzik Solomeshch 2006-4-14 s.n. Napa 2 km south of Calistoga, ca. 1.5 km west of Highway 29 at 1755 Diamond Mountain Road. Pierce Vineyard Property. 375 Comment
  UCD170445  Soliva sessilis Daniel Potter; Ninh Khuu 2017-5-14 917 Napa Knoxville Wildlife Area, along Nevada Creek. 373 Comment
  CAS-BOT-BC365998  Sonchus asper R. E. Frenkel 1963-10-27 299 Napa In the vinyard north of Oakville Cross Road Comment
  CDA3446  Spergularia bocconi H. Stabo 1979-4-26 Napa Residence at 41 Magnolia, Calistoga. 0 Comment
  CAS-BOT-BC390295  Spergularia macrotheca var. longistyla John Thomas Howell 1926-3-27 1759 Napa Myrtledale Hot Springs near Calistoga Comment
  RSA0098486  Spergularia macrotheca var. longistyla Alice Eastwood, John Thomas Howell 1938-5-15 5518 Napa Myrtledale Hot Springs. Comment
  UCD149592  Spergularia rubra 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
  JEPS62962  Stachys ajugoides W. L. Jepson 1894-11-7 14960 Napa Asylum Field Napa Comment
  UCD166675  Stachys ajugoides Jake Ruygt 1982-6-21 1339 Napa Suscol plain, just east of steel mill, Rocktram. 2 Comment
  UCD69149  Stachys albens D. Sanchez-Mata; P. Rodriguez-Rojo 1997-7-24 s.n. Napa Aetna Springs-Middletown. Butts Canyon Road. Riparian Sargent cypress woodland on serpentine alluvial and rocky soils. 270 Comment
  UCD126061  Stachys rigida var. quercetorum M. Wiesendanger 1927-5-4 686 Napa Near Monticello. Comment
  CAS-BOT-BC375246  Stephanomeria elata Peter H. Raven 1951-8-21 3873 Napa Mt. Veeder 762 Comment
  CAS-BOT-BC375247  Stephanomeria elata Peter H. Raven 1951-6-26 3057 Napa Wooden Valley Grade 304 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
  JEPS122969  Stipa lepida Jake Ruygt 1991-5-18 2574 Napa Mount George Avenue. Quad: Mount George. 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
  SEINET10893282  Stipa lepida David D. Keck 1931-4-2 Keck 1017 Napa Wooden Valley Grade, West side of Napa Range, 5 miles NE of Napa. Dry rocky openings in the chaparral. 170 Comment
  UCD74403  Streptanthus barbiger Jake Ruygt 2007-6-23 5239 Napa Spring Mtn. Rd. across from York Creek Dam. 195 Comment
  CAS-BOT-BC61252  Streptanthus breweri John Thomas Howell 1937-7-18 13101 Napa Mount Saint Helena Creek. North Napa county. Comment
  JEPS126127  Streptanthus breweri Jake Ruygt 2010-7-5 5666 Napa East of White Point. Detert Reservoir 7.5' Qua. Comment
  UCD164231  Streptanthus breweri N. Ivalu Cacho; Sharon Y. Strauss 2013-6-6 IC-SS 309 Napa McLaughlin UC Reserve: 'Lomatium hill. 341 Comment
  UCD115954  Streptanthus breweri Robert E. Preston 1987-6-20 567 Napa 0.75 mile north of Round Corral in Big Basin. 268 Comment
  UCD74410  Streptanthus breweri Jake Ruygt 2005-6-4 4901 Napa Hunting Creek about 3/4 mile NE of Putah Creek. 201 Comment
  UC1198805  Streptanthus breweri var. hesperidis Joseph P. Tracy 1899-7-6 407 Napa hills at head of creek 3-4 mi e Angwin's; Northern Coast Ranges, Howell Mountain, Moore's Creek 457 Comment
  CAS-BOT-BC87153  Streptanthus glandulosus subsp. glandulosus John Thomas Howell 1940-5-19 15453 Napa Upper Saint Helena Creek. Comment
  CAS-BOT-BC87158  Streptanthus glandulosus subsp. glandulosus David D. Keck 1933-5-29 2370 Napa Pope Creek Bridge, south of Walters Springs. Comment
  CAS-BOT-BC87162  Streptanthus glandulosus subsp. glandulosus J. F. Emmel 1968-4-7 57 Napa Hills north of road above Pope Creek and Maxwell Creek. Comment
  JEPS106600  Streptanthus glandulosus subsp. glandulosus Jake Ruygt 1979-4-14 517 Napa Oat Hill Mine Rd. in the Palisades area 670 Comment
  UCD161701  Streptanthus glandulosus subsp. glandulosus Jake Ruygt 2010-5-1 5528 Napa southwest of end Cedar-Pocock Creek Road. (Coordinates converted from UTM data by label maker.) 365 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
  UCD160653  Streptanthus hesperidis Ellen Dean; Susan Harrison, Sharon Strauss 2015-5-10 8739 Napa Butts Canyon. Along Butts Canyon / Guenoc Road, just NW of Shell Valley Road turnoff. South side of road. 251 Comment
  UCD170471  Streptanthus hesperidis Daniel Potter; A Holland, D McNair, H Won, K Battenberg 2016-6-23 900 Napa Knoxville Wildlife Area, west slope of ridge above upper Zim Zim Creek drainange east of Knoxville-Devilhead Road. 572 Comment
  UCD74409  Streptanthus hesperidis Jake Ruygt 2007-6-23 5236 Napa Las Posadas State Forest, north of Recreation Flat. 405 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
  UCR66571  Streptanthus morrisonii subsp. elatus Robert M. Specht 1977-5-15 884 Napa Serpentine barrens on N running ridge below Develhead Rd in drainage 473 Comment
  UCD119099  Styrax redivivus K. Esau; S. Keeton and E. Hyde 1938-5-1 s.n. Napa location unknown. Comment
  UCD38863  Symphoricarpos albus var. laevigatus Beecher Crampton 1962-10-9 6703 Napa 1.25 miles southwest Angwin. Comment
  UCD110459  Symphoricarpos mollis Christopher Mallek 2008-1 KX2- 16 Napa Knoxville. 593 Comment
  JEPS40793  Symphyotrichum spathulatum Willis L. Jepson 1893-9-24 Napa Howell Mt. Comment
  JEPS40796  Symphyotrichum spathulatum W. L. Jepson 1893-9-21 Napa Wooden Valley Comment
  UC1536891  Symphyotrichum spathulatum G. H. True Jr. 1937-10-12 842 Napa near Lokoya Lodge Comment
  UC87074  Symphyotrichum spathulatum T. S. Brandegee 1888-9-1 Napa Howell Mountain Comment
  JEPS40770  Symphyotrichum subspicatum Willis L. Jepson 1894-11-7 Napa Napa City Napa River Basin Comment
  JEPS40818  Symphyotrichum subspicatum W. L. Jepson 1894-11-7 Napa Napa City Comment
  SD211538  Symphyotrichum subulatum var. parviflorum Barbara Ertter, Elizabeth Neese 1988-10-2 7950 Napa Lake Hennessey circa 15 airmiles North-Northwest of Napa, on Conn Creek in North Coast Ranges, below spillway on North side of Route 128, base of riprap 91 Comment
  UCD86121  Taeniatherum caput-medusae Beecher Crampton 1962-5-16 6436 Napa town of Pope Valley. Comment
  JEPS45772  Tamarix gallica W. L. Jepson 9832 Napa White Sulphur Creek; Napa Valley 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
  JEPS21536  Tanacetum parthenium W. L. Jepson 1918-6-24 Napa Silverado, an abandoned inn half-way up to the grade to the Tollhouse on Mt. St. Helena Mt. St. Helena Comment
  JEPS37028  Tanacetum parthenium W. L. Jepson 1936-6-2 17601 Napa Pratt Valley, St. Helena St. Helena, Pratt Valley Comment
  UC1196946  Taraxia ovata Joseph P. Tracy 1933-4-30 12107 Napa 3-4 mi e Angwin's (on hills at head of Moore's Creek); Northern Coast Ranges, Howell Mountain, La Jota Plateau 518 Comment
  UCD83866  Taraxia ovata Ellen Dean; Stephen Rae 2010-3-15 5824 Napa along Wooden Valley Road. E side of road. Lamb Vineyard property, upper pasture. 198 Comment
  UCR261682  Tetrapteron graciliflorum Ann Howald 2003-4-23 2303 Napa Inner North Coast Ranges, Snell Valley Road, c. 2.3 miles east of intersection with Butts Canyon Rd. 175 Comment
  JEPS110988  Thalictrum fendleri var. polycarpum Jake Ruygt 1979-6-3 670 Napa Aetna Springs Rd. 472 Comment
  UC9680  Thalictrum fendleri var. polycarpum Willis L. Jepson 1893-4-28 Napa gorge n Wooden Valley grade; Napa River Basin Comment
  UC9707  Thalictrum fendleri var. polycarpum Willis L. Jepson 1893-4-28 Napa gorge n Wooden Valley Grade; Napa River Basin Comment
  UCD108633  Thermopsis californica var. californica C. H. Lamoureux; J. M. Tucker, Roman Gankin 1957-4-11 1211 Napa South side of Lake Hennessy, 1 mile west of junction of State Highway 128 and Pope Valley Road. Comment
  UCD20027  Thermopsis californica var. californica C. H. Lamoureux; J. M. Tucker and R. Gankin 1957-4-17 1211 Napa 1 mile west of junction of Route 128 and Pope Valley Road. Serpentine hillside on S side of Lake Hennessy. Comment
  UCD48029  Thermopsis californica var. californica K. Watts; K. Carpenter, S. Cruz, D. Goldberg, and M. Ochoa 2000-4-28 27 Napa Napa County, McLaughlin Reserve, north of Knoxville-Berryessa Rd., just south of old town of Knoxville, next to Old Knoxville Rd. 426 Comment
  POM127144  Thermopsis californica var. californica H. P. Chandler 1907-4-14 7509 Napa Near Napa River, 4 miles N. of St. Helena. Comment
  CAS-BOT-BC66480  Thysanocarpus curvipes John Thomas Howell 1930-3-23 4575 Napa Mount Saint Helena, 5 miles from Calistoga. Comment
  CAS-BOT-BC66483  Thysanocarpus curvipes John Thomas Howell 1931-4-2 6085 Napa Summit of Wooden Valley Grade. 8 miles east of Napa. Comment
  CAS-BOT-BC66488  Thysanocarpus curvipes John Thomas Howell 1931-4-19 6455 Napa Conn Valley. Comment
  CAS-BOT-BC66493  Thysanocarpus curvipes David D. Keck 1931-4-2 1036 Napa Wooden Valley Road, east side of Napa Range, 8 miles from Napa. Comment
  CAS-BOT-BC66498  Thysanocarpus curvipes M. S. Jussel 1931-4-19 s.n. Napa Pope Valley. Comment
  JEPS106589  Thysanocarpus curvipes Jake Ruygt 1996-4-12 3606 Napa Blue Ridge, north of Monticello Dam. Rockwell Gap area 615 Comment
  JEPS54167  Thysanocarpus curvipes W. L. Jepson 1897-5-2 30 f Napa St. Helena Comment
  CAS-BOT-BC66490  Thysanocarpus curvipes John Thomas Howell 1934-3-26 11796 Napa South side of Mount Saint Helena. 4 miles from Calistoga. Comment
  CAS-BOT-BC66507  Thysanocarpus curvipes John H. Thomas 1968-4-4 14274 Napa About 3 miles north of Calistoga on road to Lakeport. Comment
  CAS-BOT-BC66510  Thysanocarpus curvipes John H. Thomas 1968-4-4 14275 Napa About 2 miles east of Rutherfor along Highway 128. Comment
  JEPS54164  Thysanocarpus curvipes Willis L. Jepson 1893-4-25 29 d Napa hills w St. Helena (trail to Caux's Cabin); Napa River Basin, hills w of St. Helena Comment
  RSA0057573  Thysanocarpus curvipes David D. Keck 1931-4-2 1035 Napa Wooden Valley Road, east side of Napa Range, 8 miles from Napa. Comment
  UCD14241  Thysanocarpus curvipes Lisa McNair 1974-4-4 11 Napa At Monicello Dam on Highway 128. 243 Comment
  SEINET3165954  Thysanocarpus curvipes subsp. curvipes C. D. Bailey 2008-3-19 259 Napa East of the town of Napa along Combsville Rd. Follow onto Wild Horse Valley Rd. as Combsville Rd. comes to an end. Ca. 1 mile up Wild Horse Valley Rd. on a road cut. 183 Comment
  JEPS106584  Thysanocarpus radians Jake Ruygt 1977-5-3 216 Napa 6.7 miles north of Monticello Rd. on Atlas Peak Rd. 438 Comment
  JEPS106585  Thysanocarpus radians Jake Ruygt 1997-3-8 3803 Napa south of Butts Canyon Road intersection with James Creek Rd 210 Comment
  RSA0049961  Thysanocarpus radians D. D. Keck 1931-4-2 1046 Napa 4 miles S. of Monticello, eastern Napa County. Comment
  CAS-BOT-BC474518  Tonella tenella G. F. Hrusa; R. Cole; D. Anderson 1995-3-26 12024 Napa Quail Ridge Reserve, N slope below field house 370 Comment
  JEPS110739  Tonella tenella Jake Ruygt 1996-4-9 3563 Napa Wantrop Wildlife Sanctuary 207 Comment
  JEPS26171  Tonella tenella Joseph P. Tracy 1902-5-14 1444 Napa 1 mi from St. Helena (on Howell Mt road); Northern Coast Ranges, Napa Valley 91 Comment
  UCD149580  Torilis arvensis 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
  SBBG321  Torreya californica J. M. Tucker 1954-4-22 2699 Napa Hwy 29, E side of Mt St Helena, 1 mi N of summit of rd Comment
  SEINET3073146 Image available Torreya californica Royal D. Suttkus 1967-6-26 67- 30 -22 Napa Clearly Reserves, 7.2 miles NW of Pope Valley. Comment
  JEPS46485  Toxicodendron diversilobum W. L. Jepson Jan. 1898 Napa St. Helena Comment
  JEPS63929  Toxicodendron diversilobum W. L. Jepson 1913-4-15 5314 Napa Howell Mt. 609 Comment
  UCD15984  Toxicoscordion fontanum C. D. Kennedy; L. Condon, R. Flannery, C. Hallock, and N. Strahan 2000-4-22 1 Napa McLaughlin Reserve, first ridge S of Knoxville-Berryessa Rd., along W-side of Devilhead Rd. 38 deg. 49' 11.2'' N; 122 deg. 21' 11.7''W; 480 m. Comment
  UCD147533  Toxicoscordion micranthum Ellen Dean; Diana Hickson 2014-4-29 8087 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 603 Comment
  UCD170439  Tragopogon porrifolius Daniel Potter; Ninh Khuu, Kai Battenberg 2017-5-7 911 Napa Knoxville Wildlife Area, along Berryessa-Knoxville Road. 407 Comment
  UC127171  Trichostema lanceolatum Harley P. Chandler Sep 7-14 1906 7136 Napa Alta Loma Ranch Howell Mountain 304 Comment
  OBI13450  Trichostema laxum Robert F. Hoover 1966-8-23 9919 Napa E side of Mt. St. Helena Comment
  JEPS112610  Trientalis latifolia Jake Ruygt 1991-5-18 2685 Napa Ink Grade 329 Comment
  UC22514  Trientalis latifolia Willis L. Jepson 1893-5-8 Napa Napa River Basin, Howell Mountain, New Eden New Eden; Napa River Basin, Howell Mountain, New Eden Comment
  UCD121195  Trientalis latifolia Ellen Dean; G. Golden, C. Loughran, PLB 102 interns 2012-5-5 7366 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 4H camp. 526 Comment
  UC22513  Trientalis latifolia Willis L. Jepson 1893-5-9 Napa Napa River Basin, [Nibaum's Dam] Napa River Basin Comment
  RSA3289  Trifolium albopurpureum D. D. Keck 1931-4-2 1039 Napa Between Wooden Valley and Monticello, 10 miles from Napa, east base of Napa Range. Comment
  UC137702  Trifolium albopurpureum C. F. Baker 1903-4-20 2625 Napa Mt. St. Helena, Napa Co. Comment
  UCD35294  Trifolium albopurpureum Beecher Crampton 1955-4-7 2430 Napa 7.8 miles north of Monticello. Comment
  UCD83434  Trifolium albopurpureum Jake Ruygt 1983-4-17 1428 Napa Mt. St. Helena. 777 Comment
  JEPS106689  Trifolium albopurpureum var. albopurpureum Jake Ruygt 1980-4-13 833 Napa Snell Valley 237 Comment
  UC457175  Trifolium albopurpureum var. albopurpureum David D. Keck 1931-4-2 1039 Napa 10 mi from Napa (between Wooden Valley and Monticello); east base of the Napa Range Comment
  JEPS65846  Trifolium albopurpureum var. dichotomum Willis L. Jepson 1893-5-2 13663 Napa e Calistoga (Palisades, near summit of New Pope Valley Grade); Napa River Basin Comment
  UC16488  Trifolium albopurpureum var. dichotomum Edw. L. Greene 1894-6-17 Napa Calistoga Comment
  UC74964  Trifolium albopurpureum var. dichotomum C. F. Baker 1903-4-19 1983 Napa Calistoga Comment
  UC16498  Trifolium albopurpureum var. dichotomum Edw. L. Greene Apr. 1892 Napa W. St. Helena Comment
  CAS-BOT-BC208299  Trifolium amoenum Peter H. Raven 1951-6-24 3005 Napa Napa 30 Comment
  UC85329  Trifolium amoenum Michener and Bioletti May 1891 Napa Napa Junction Comment
  UC2043168  Trifolium bifidum Barbara Ertter with Jake Ruygt 1996-4-25 14599 Napa Kroeber Ranch on NE flank of Mount St. John, W of Rutherford in Napa Valley. Comment
  UCD148791  Trifolium bifidum Ellen Dean; Diana Hickson 2014-4-29 8099 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 603 Comment
  UCD18152  Trifolium bifidum Jean Shepard; with Plant Biology 102 class 2000-4-29 190 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
  JEPS65760  Trifolium bifidum var. bifidum E. K. Crum 1931-4-17 1055 c Napa 1/2 mi n P. O.; Pope Valley Comment
  JEPS106798  Trifolium ciliolatum Jake Ruygt 1979-4-29 562 Napa .4 miles west of HWY 29 on Kortum Canyon Road 201 Comment
  UCD108300  Trifolium ciliolatum R. Tofsrud 1951-5-26 s.n. Napa Enterprise School. 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
  OBI12704  Trifolium ciliolatum R. L. Hoover 1968-4-20 46 Napa On Howell Mtn rd, 2.6 mi NE of State Rte 29/128, on W side of rd Comment
  JEPS106802  Trifolium depauperatum var. depauperatum Jake Ruygt 1995-4-8 3414 Napa Silverado Trail at Souza Lane, Napa. 12 Comment
  UCD117477  Trifolium depauperatum var. depauperatum Roisin Murphy-Deak; Plant Biology 102 Collectors 2012-4-29 7 Napa Las Posadas State Experimental Forest. Right next to road. Ca. 0.1 mile northeast from fire station. On north side of road. 518 Comment
  UC188495  Trifolium depauperatum var. depauperatum Edw. L. Greene 1895-4-1 Napa Napa Valley Comment
  UC917166  Trifolium depauperatum var. truncatum D. C. Finfrock 1950-4-6 21 Napa 14 mi from Monticello (Mountain meadow); Pope valley Comment
  SEINET3131839  Trifolium dichotomum L. S. Rose 1935-4-18 35100 Napa Steel Canyon Comment
  JEPS106804  Trifolium dubium Jake Ruygt 1987-4-22 1960 Napa DFG property near Buchli Station 1 Comment
  JEPS106805  Trifolium dubium Jake Ruygt 1996-5-5 3640 Napa Butts Canyon Road at James Creek Road; field to SE. 210 Comment
  UCD41327  Trifolium dubium Tera Pitman; E. Dean, M. Bibbo, and A. Douglas 2004-5-1 2 Napa Southern end of McLaughlin UC Reserve, NE side of Knoxville-Berryessa Rd, W side of Knoxville Creek, 1 road mile S of the gate to old town of Knoxville. 353 Comment
  UCD83444  Trifolium dubium Jake Ruygt 1991-6-10 2714 Napa Lake Henne, Friesen's Lakes. 553 Comment
  JEPS106809  Trifolium fucatum Jake Ruygt 1984-4-21 1530 Napa Tubbs Lane at Myrtledale Rd. 118 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
  POM262789  Trifolium fucatum var. fucatum J. C. Roos 1939-4-15 279 Napa Pope Valley 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
  JEPS106611  Trifolium gracilentum var. gracilentum Jake Ruygt 1996-4-10 3571 Napa Milliken Peak 219 Comment
  CDA37354  Trifolium hirtum D. G. Kelch 2010-5-6 10 .171 Napa Wooden Valley Road, about 5 km north of Napa/Solano county line, north of Rockville. Comment
  UCD111240  Trifolium incarnatum David Slade 1982-4-22 37 Napa Pleasant Valley Road 1.2 mi. w. Highway 128, roadside. 30 Comment
  UCD48984  Trifolium microcephalum M. Eng; W. Wong, N. Wannlund, and A. Holman 2002-5-4 19 Napa Quail Ridge UC Reserve, northern tip of peninsula just N of power lines in open grassy swale. 274 Comment
  UCD111455  Trifolium microcephalum R. Tofsrud 1951-5-26 s.n. Napa Near Enterprise School. Comment
  POM349632  Trifolium microdon J. T. Howell 1934-3-26 s.n. Napa Calistoga geysers. Comment
  JEPS106713  Trifolium obtusiflorum Jake Ruygt 1990-6-2 2570 Napa Sulphur Canyon 237 Comment
  UC1103445  Trifolium obtusiflorum Joseph P. Tracy 1899-5-14 397 Napa 3-4 mi e Angwin's (on hills at head of Moore's Creek); Northern Coast Ranges, Howell Mtn 365 Comment
  UC16686  Trifolium oliganthum Willis L. Jepson 1893-4-24 Napa e St. Helena (hills) Comment
  UCD83422  Trifolium oliganthum Jake Ruygt 1978-4-17 1431 Napa Red Hill, Mt. St. Helena. 670 Comment
  NY50564  Trifolium petrophilum C. F. Baker 1903-4-20 2625 Napa Mt. St. Helena 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
  CDA31273  Trifolium willdenovii D. G. Kelch 2010-5-6 10 .184 Napa Wooden Valley Road, about 5 km north of Napa/Solano county line, north of Rockville. Comment
  JEPS4145  Trifolium willdenovii Willis L. Jepson 1893-5-2 13673 Napa e Calistoga (Pope Valley grade); Napa River Basin Comment
  UCD33552  Trifolium willdenovii Beecher Crampton 1969-10-14 8522 Napa Napa County, 1.5 miles west of Monticello Dam on Hwy. 128. Comment
  UCD49028  Trifolium willdenovii A. Collier; D. Caterson and S. Kenady 2002-5-4 4 Napa Quail Ridge UC Reserve. At northern tip of ridge, N of the intersection of the jct of East and West roads, near stock pond, on the SW side of pond. 320 Comment
  UCD49030  Trifolium willdenovii S. Murphy; K. Keck and K. Dyer 2002-5-5 18 Napa Quail Ridge UC Reserve, northern tip of ridge, along N edge of upper road leading to power lines and tip parcels, NE from intersection of West and East Roads ca. 20 m. 328 Comment
  UCD109855  Trifolium willdenovii G. F. Hrusa 1992-4-15 10381 Napa Along Hwy. 128 app. 2 m. N of Knoxville-Berryessa Rd. Comment
  CAS-BOT-BC451905  Triglochin maritima John Thomas Howell 1932-10-8 10810 Napa At Cuttings Wharf on Napa River Comment
  UCD67357  Trillium chloropetalum G. F. Hrusa 1996-5-4 s.n. Napa Shaded canyon below Cub Valley on MonteSol Ranch. Summit of Palisades SE of Mount St. Helena. 609 Comment
  SBBG1071  Trillium chloropetalum H. and M. Dearing 1939-5-1 3240 C Napa Bill Hart's Ranch, St. Helena Comment
  CAS-BOT-BC133384  Trillium ovatum Mrs. Clara Hunt 1921-4-1 s.n. Napa St. Helena Comment
  JEPS106582  Triodanis biflora Jake Ruygt 1987-6-5 2028 Napa Wild Horse Valley Ranch near White Creek 402 Comment
  UCD123379  Triphysaria eriantha D. C. Finfrock 1950-4-6 22 Napa 14 miles from Monticello and 3 miles from Pope Valley. Comment
  UCD18179  Triphysaria eriantha 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
  SEINET5738473 Image available Triphysaria eriantha subsp. eriantha Stan Logan 1965-1 8 Napa Dollarhide Road, ca. 3 miles east of Pope Valley.; Pope Valley Comment
  JEPS85046  Triphysaria pusilla Larry Heckard, Mary Ashton 1969-5-3 2188 Napa ca. 7 mi. n.e. Napa (Mead Ranch, off the Atlas Peak Rd.); Mead Ranch 457 Comment
  JEPS11167  Triphysaria versicolor subsp. faucibarbata W. L. Jepson 1915-4-23 6258 Napa Conn Valley Comment
  UCD148587  Triphysaria versicolor subsp. faucibarbata G. F. Hrusa; S. Larson 1995-4-10 12060 Napa Along Pope Canyon Road approximately 1 mile east of intersection of Pope Valley-Chiles Valley Road and Pope Canyon Road. 180 Comment
  CDA41890  Triphysaria versicolor subsp. faucibarbata T. C. Fuller 1958-5-1 s.n. Napa Highways 29 & 21, 6 miles south of Napa. 0 Comment
  HSC60268  Triphysaria versicolor subsp. faucibarbata R. W. Spjut 1979-4-8 5454 Napa Within Napa city limits just off Hwy. 121 Comment
  UC1334878  Triphysaria versicolor subsp. faucibarbata L. D. Thurman 1964-4-15 392 Napa on Silvarado trail 5 mi n Napa; on Silverado Trail Comment
  UC27200  Triphysaria versicolor subsp. faucibarbata Willis L. Jepson 1893-4-27 Napa Napa City; Napa River Basin Comment
  JEPS110904  Triteleia hyacinthina Jake Ruygt 1977-5-3 211 Napa 1.6 miles north of Monticello Rd. on Atlas Peak Rd. 54 Comment
  UCD160785  Triteleia hyacinthina Ellen Dean; D. Potter, D. Hickson, R. Ruygt, C. Donkers 2015-5-2 8665 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
  CAS-BOT-BC526506  Triteleia laxa John H. Thomas 1955-5-21 5150 Napa Along State Highway No. 128, about 4.5 miles south of Monticello. 167 Comment
  UCD148809  Triteleia laxa Ellen Dean; Diana Hickson 2014-4-29 8116 Napa Knoxville public lands. California Department of Fish and Wildlife property. Headwaters of Nevada Creek. Most northwestern part of property. 579 Comment
  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
  UCD18074  Triteleia laxa Ellen Dean; with Plant Biology 102 class 2000-4-22 629 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
  UCD48792  Triteleia laxa A. Collier; D. Caterson and S. Kenady 2002-5-4 15 Napa Quail Ridge UC Reserve. At northern tip of ridge, N of the intersection of West and East roads. Along upper road leading to power lines, both N and S of road. 335 Comment
  CAS-BOT-BC526507  Triteleia laxa Betty H. Johnson 1958-6-8 607 Napa In meadow near St. Helena River, 6.4 miles SW of Middleton Comment
  CAS-BOT-BC526509  Triteleia laxa David D. Keck 1933-5-29 2367 Napa Pope Creek bridge south of Walters Springs. Comment
  UC3311  Triteleia laxa Willis L. Jepson 1893-4-24 Napa hills e St. Helena; Napa River Basin Comment
  UC422833  Triteleia laxa H. P. Chandler 1907-5-8 7564 Napa White Sulphur Spr. St. Helena Comment
  UCD63053  Triteleia peduncularis Daniel Sanchez-Mata 2006-6-11 s.n. Napa Knoxville Public Lands. 650 Comment
  SEINET3243502  Triteleia peduncularis Sally Walker 1981-1 H- 8 Napa Beside creek, 9.9 miles south of Middletown along Butts Canyon Road. Comment
  UC765431  Triteleia peduncularis R. F. Hoover 1941-5-10 5006 Napa betw St. Helena and Calistoga Comment
  UCD161236  Turritis glabra Jake Ruygt 1992-4-2 2873 Napa Napa County : Wild Horse Valley Ranch, Johnson's Meadow. (Coordinates estimated by label maker at UC Davis). 481 Comment
  CAS-BOT-BC91198  Umbellularia californica John H. Thomas 1966-3-22 11530 Napa R.L. Stevenson State Park on the eastern slopes of Mount Saint Helena along highway 29 between Middletown and Calistoga. 762 Comment
  CAS-BOT-BC91201  Umbellularia californica John Thomas Howell 1933-8-27 11623 Napa Sage Canyon, Napa Range. Comment
  HSC24895  Umbellularia californica J. P. Smith, J. O. Sawyer 1972-2-20 5069 Napa Hwy. 128 W of Lake Hennessey Comment
  JEPS40103  Umbellularia californica W. L. Jepson 1937-4-9 17998 Napa Howell Mountain, St. Helena, 1/4 mi below summit St. Helena; Howell Mountain, St. Helena Comment
  UCD162094  Umbellularia californica Dylan O. Burge 2014-3-15 1491 Napa Mount Saint Helena. Comment
  HSC81865  Uropappus lindleyi Thomas W. Nelson, Jane P. Nelson 1980-5-3 5144 Napa Along Butts Canyon Rd. N of Pope Valley 274 Comment
  JEPS106872  Uropappus lindleyi Jake Ruygt 1979-5-16 602 Napa 5.8 miles east of Monticello Rd. on HWY 128 304 Comment
  UCD170678  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. 158 Comment
  UCD32573  Uropappus lindleyi Beecher Crampton 1954-5-20 1927 Napa 8 miles southwest of Monticello, along highway 128. Comment
  CAS-BOT-BC404188  Urtica dioica subsp. holosericea Dennis W. Woodland 1970-8-13 1617 Napa Anguin Meadows just west of shopping center Comment
  JEPS120409  Vaccinium ovatum Jake Ruygt 1986-5-10 1757 Napa Devil's Canyon. Comment
  CLARK-A1528-4322  Verbascum blattaria John C. Roos 1938-10-22 265 Napa Comment
  UC27672  Verbascum blattaria Mrs. D. O. Hunt 1899-6-13 Napa St. Helena Comment
  UCD124633  Verbascum thapsus Beecher Crampton 1962-10-9 6702 Napa 1.25 miles southwest of Angwin, Howell Mtn. Road. Conn Creek. Comment
  UCD50230  Verbascum virgatum S. Nichol 2004-4-1 s.n. Napa Intersection 128 and Pope Valley Rd, Napa. Comment
  JEPS110893  Verbena lasiostachys var. lasiostachys Jake Ruygt 1988-6-4 2209 Napa south slope of Mt. St. Helena 694 Comment
  UCD20828  Veronica persica N. Nicola 2001-3-30 044 Napa Eastern side of inner north coast range, Putah Creek valley, Berryessa valley, Quail Ridge Nature Preserve, Decker Valley. Lat/long is estimate. Comment
  POM16867  Vicia sativa C. F. Baker 1903-4-19 1988 Napa Calistoga. Comment
  JEPS106540  Vicia sativa subsp. nigra Jake Ruygt 1990-4-21 2501 Napa Giles Mead ranch, Atlas Peak Rd. 429 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
  UCD48237  Viola douglasii A. Ryan; S. Burgess, A. Hufton, J. Pierner, and B. Takahashi 2000-4-29 19 Napa McLaughlin Reserve, Southwest side of Hunting Creek, on east-facing slope of 'Research Hill'. 655 Comment
  HSC103466  Viola douglasii Thomas W. Nelson, Jane Nelson 1981-4-14 6397 Napa Along Morgan Valley Rd., ~ 1.5 mi. N of junction with Devil Head Rd., opposite Manhattan Mine. 579 Comment
  SJSU11033  Viola lobata D. L. Blair 1968-4-5 Napa Pope Valley Comment
  UCD67977  Viola lobata Linda A. Bell 1975-5-18 151 Napa Oakville Grade, 5.7 miles W of junction with Highway 29. 381 Comment
  RSA44295  Viola lobata E. Z. Lovegrove 1946-4-28 s.n. Napa Along trail to crater, Mt St Helena. Comment
  UC422894  Viola lobata subsp. lobata H. P. Chandler 1907-4-21 7519 Napa Road from Glen Ellen to Oakville (near summit) Comment
  JEPS50321  Viola lobata subsp. lobata W. L. Jepson 1893-5-1 14109 Napa near Calistoga (Franz Valley grade); Napa River Basin, Franz Valley grade Comment
  UC19296  Viola lobata subsp. lobata Willis L. Jepson 1893-5-1 Napa Franz Valley grade; Napa River Basin, Franz Valley grade Comment
  JEPS110801  Viola purpurea subsp. quercetorum Jake Ruygt 1991-5-4 2645 Napa White Cottage Rd. at Ink Grade 563 Comment
  UC140873  Viola purpurea subsp. quercetorum C. F. Baker 1903-5-6 3082 Napa Knoxville Comment
  UC1762401  Viola purpurea subsp. quercetorum Edith Hessel 1922-4-23 Napa St. Helena Mt., on trail to crater Comment
  UC575299  Viola purpurea subsp. quercetorum Milo S. Baker 1924-5-3 460 Napa Pine Crest; Howell Mountain, Pine Crest Comment
  CAS-BOT-BC203091  Vitis californica Peter H. Raven 1964-5-9 19049 Napa 2 miles west of Aetna Springs Comment
  RSA390411  Vitis californica T. Gertrude Williamson 1929-7-4 s.n. Napa Canyon behind White. Sulphur Springs, St Helena. Comment
  UCD102810  Vitis californica H.