Featuring California vascular plant data from the Consortium of California Herbaria and other sources
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Biodiversity data provided by the participants of the Consortium of California Herbaria (Accessed through CCH1 Data Portal,, 2023 January 30.

Literature Citation:
CCH1 Portal. 2023. Biodiversity data provided by the participants of the Consortium of California Herbaria ( Accessed on January 30).

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You searched for: Collomia diversifolia

  F  CCH1_AIDherbscientific namecollectorcoll. num.formatted datecountylocality
CAS-BOT229525CASCollomia diversifoliaHeller, A. A.59881902-07-25 LakeS of Mount Sanhedrin, midway between Potter Valley and Hullville
CAS-BOT229526CASCollomia diversifoliaMason, Herbert L.117411938-05-01 Lake3 miles E of Middletown
CAS-BOT229527CASCollomia diversifoliaMason, Herbert L.117411938-05-01 Lake3 miles E of Middletown
CAS-BOT229528CASCollomia diversifoliaBaker89661938-05-02 LakeW of new Mirabel mine
CAS-BOT229529CASCollomia diversifoliaBaker, M. S.95811940-01-01 LakeNear Mirabel mine
CAS-BOT229530CASCollomia diversifoliaBaker, M. S.120381948-05-12 NapaButts Canyon just below Black Oak Villa
CAS-BOT229531CASCollomia diversifoliaBaker, M. S.120381948-05-12 NapaButts Canyon just below Black Oak Villa
CAS-BOT229532CASCollomia diversifoliaAbrams, L. R.125631928-05-07 Lake4-5 miles E of Hough′s Springs
CAS-BOT229533CASCollomia diversifoliaLeithold, C. F.s.n.1893-07-08 LakeCobb Valley
CAS-BOT229534CASCollomia diversifoliaStebbins, G. L.66861968-05-15 ColusaS end of Walker Ridge, N of State Highway 20
CAS-BOT229535CASCollomia diversifoliaNelson, Thomas; Anderson, D. E.8111973-05-05 MendocinoAlong jeep-road to Roberts Lake N of Eden Valley Ranch
CAS-BOT229536CASCollomia diversifolias.n.1894-07-01 MendocinoGlen Blair
CAS-BOT229537CASCollomia diversifoliaAbrams, L. R.58351916-07-06 MendocinoWolf Creek between Willits and Laytonville
CAS-BOT229538CASCollomia diversifoliaWheeler, Clare R.3331978-05-06 MendocinoMackerricher State Park, Fort Bragg. Lake Cleone area
CAS-BOT229539CASCollomia diversifoliaLovegrove, Elsie Zeiles.n.1946-04-28 NapaAlong road to Mount St. Helena
CAS-BOT229540CASCollomia diversifoliaRaven, Peter H.s.n.1951-05-26 NapaButts Creek Canyon
CAS-BOT229541CASCollomia diversifoliaAhart, Lowell37081982-07-28 Sierra1-8 mile N of the Pacific Mine, about 5 miles E of La Porte
CAS-BOT229542CASCollomia diversifoliaWheeler, Louis C.28891934-07-06 SiskiyouHungry Creek
CAS-BOT229543CASCollomia diversifoliaWheeler, Louis C.28891934-07-06 SiskiyouHungry Creek
CAS-BOT229544CASCollomia diversifoliaRubtzoff, Peter72011973-07-24 SonomaUpper Green Valley Marsh
CAS-BOT229545CASCollomia diversifoliaRoos, J. C.48731950-07-22 Sonoma2 miles E of Duncan Mills
CAS-BOT229546CASCollomia diversifoliaCarter, Eugene10281975-07-02 TrinityE Fork of North Fork Trinity River; Abandoned mining ground S of Store Gulch
CAS-BOT230058CASCollomia diversifoliaDean, Ellen; Mawdsley, K.; Harrington, G.; Wilmarth, R.; Rice, B.; Salvia, E.57172009-05-27 ColusaWalker Ridge. Along Walker Ridge Road. Til Jones Spring area on W side of road, ca. 6.5 road mi N of junction with Hwy 20. W side of road
CAS-BOT32895CASCollomia diversifoliaCurran, M. K.s.n.1884-07-01 UnknownEpperson′s Road
CDA0010847CDACollomia diversifoliaG.F. Hrusa11784A1994-04-18 NapaSwartz Cyn. Rd, approx. 2 W of Aetna Springs. North Coast Biodiversity Arena.
CDA0014918CDACollomia diversifoliaG.F. Hrusa108541993-05-02 ColusaFrenzel Creek Research Natural Area. Mendocino National Forest. North Coast Ranges.
CDA0040008CDACollomia diversifoliaVernon H. Oswald & Lowell Ahart90061998-05-07 ColusaBartlett Springs Road 2.1 miles west of Bear Valley Road, 0.8 mile east of Sawtelle Valley and Grapevine Flat roads.
CHSC105173CHSCCollomia diversifoliaB. Castro10091999-07-05 LakeCa 12 air mi SSW of Stonyford, 4 W of Indian Valley Reservoir, just S of Colusa-Lake Co line, at Kanaka Glade. In serpentine substrate on gentle S-facing slope, near spring at head of Spanish Ck East Fork near top of Pacific Ridge. T16N R06W S30 SW1-4 of NW1-4 USGS Quadrangle: Hough Springs 1:24,000
CHSC114996CHSCCollomia diversifoliaLowell Ahart201112015-04-28 LakeBy the rock barrier, Barrel Spring Meadow, about 1-4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. T1 N R0 W S13 SW1-4
CHSC23104CHSCCollomia diversifoliaRobert A. Schlising22291962-05-04 LakeCoast Ranges. 0.9 N of county line, along Butts Canon Road.
CHSC48647CHSCCollomia diversifoliaVernon Oswald20111986-05-12 ColusaBrim Rd. (Bartlett Springs Rd.) 2.1 mi w of Bear Valley Rd. On a roadcut. T1 N R0 W S12
CHSC48648CHSCCollomia diversifoliaVernon Oswald11671984-05-02 ColusaMendocino Nat. Forest, Fouts Spring Rd. (M10; 1 N01) 5.7 mi w of Stonyford. On a road cut.
CHSC70989CHSCCollomia diversifoliaVernon Oswald90061998-05-07 ColusaBartlett Springs Rd. 2.1 mi west of Bear Valley Rd., 0.8 mi east of Sawtelle Valley and Grapevine Flat roads. At roadside. T1 N R0 W S12
CHSC78258CHSCCollomia diversifoliaVernon H. Oswald99162000-05-01 TehamaM2 N02) 9.8 road mi west of Paskenta. T24N R0 W S33 SE1-4 of NE1-4 USGS Quadrangle: Riley Ridge 1:24,000
CHSC79786CHSCCollomia diversifoliaTodd Bouchier301999-05-01 LakeWalker Ridge Road, 1.6 km south of Blue Oak Recreation Area. T1 N R0 W S15
CHSC94770CHSCCollomia diversifoliaLowell Ahart127352006-06-15 GlennOn the south side of Black Diamond Road, about 2 miles west of the paved road. about 4 miles (by road) from Stonyford. T1 N R0 W S15 near the center
DAV302946DAVCollomia diversifoliaJ. M. Tucker33281957-05-04 LakeLake-Napa County Line: Canon bottom of St. Helena Creek, 6 miles (by road) S of Middletown on Highway 29.
DAV302947DAVCollomia diversifoliaAnn F. Johnsons.n.1978-05-13 Contra CostaContra Costa County: From Deerflat to Meridian ridge, on Mt. Diablo.
DAV302948DAVCollomia diversifoliaRoman Gankin5191965-05-06 LakeLake County: Hill overlooking Cold Spring Camp, 0.9 mile E of Little Indian Valley (Kowalski Ranch and Stanton Creek).
DAV302949DAVCollomia diversifoliaD. Boyd351980-04-19 LakeLake County: Along Walker Ridge Road, 1-2 mile N of junction with access road to Indian Valley Dam.
DAV302950DAVCollomia diversifoliaJohn M. Tucker44451980-05-03 LakeLake County: Summit of Walker Ridge, on west side of Walker Ridge Road just north of Brim Road.
DAV302951DAVCollomia diversifoliaDaniel Slakey102011-06-12 LakeLake County: On roadcut of small ORV trail that connects to Indian Valley Reservoir Rd. About halfway between Walker Ridge Rd and Indian Valley Reservoir.
DAV302952DAVCollomia diversifoliaDaniel Slakey92011-06-11 LakeLake County: Walker Ridge. About 9 N of Hwy. 20 Walker Ridge Rd. Along and near small road heading west of Walker Ridge Rd. Border of Lake and Colusa County.
DAV302953DAVCollomia diversifoliaNeil Miller561973-05-05 NapaNapa County: McDonald Ranch, east of Los Posados State Forest, ca. 5 miles south of Pope Valley on Pope Valley Road.
DAV302954DAVCollomia diversifoliaKatherine Graham32012-05-05 NapaNapa County: Las Posadas State Experimental Forest. Northeastern part of property, uphill and north of Recreation Flat, along undeveloped road.
DAV302955DAVCollomia diversifoliaEllen Dean24862005-04-24 LakeLake County, McLaughlin UC Reserve, upslope of old PC Varni Road, E of stock ponds and Reserve Manager′s residence, due E of Morgan Valley Rd.
DAV302956DAVCollomia diversifoliaEllen Dean6212000-04-22 NapaNapa County. McLaughlin Reserve. First ridge south of Knoxville -- Berryessa Rd., east side of Devil Head Rd., along road to air quality station.
DAV302957DAVCollomia diversifoliaEllen Dean87022015-05-10 LakeLake County: Butts Canon. Butts Canon Road, just NW of the Napa County line. North side of the road. Not burned in fire last year (2014).
DAV302958DAVCollomia diversifoliaJames A. Neilson, Jr.35671974-05-24 LakeLake County: Mayacmas Mountains, Childers Peak area, Barceloux Ranch, east of Big Canon Road. (Elevation and georeferencing estimated by label maker.)
DAV302959DAVCollomia diversifoliaEllen Dean88002015-05-23 NapaNapa County: Butts Canon. Private property owned by Jobst Jesse. Permission for access and collecting granted. Along Butts Canon-Guenoc Road just NW of Shell Valley Rd turn off. South side of road.
DAV302960DAVCollomia diversifoliaG. Ledyard Stebbins66861968-05-10 ColusaColusa County: South end of Walker Ridge, north of Hwy 2 Near headwaters of Sulphur Creek. (Note: notebook says date of collection was 10 May. Labels made by Stebbins at CAS say 15 May.)
DAV302961DAVCollomia diversifoliaCraig D. Thomsen28112009-05-03 LakeLake County: Walker Ridge, just south of Cold Spring Mountain 6.5 miles north of Hwy 20. Vicinity of Walker Ridge Rd. Along fire break road, just south of guard rail.
DAV302962DAVCollomia diversifoliaJake Ruygt10381981-05-21 NapaNapa County: Putah Creek north of Snell Valley.
DAV302963DAVCollomia diversifoliaEric LoPrestis.n.2016-05-01 LakeLake County: McLaughlin UC Reserve. Research Hill. (Exact location unknown. Coordinates estimated by label maker).
DAV302964DAVCollomia diversifoliaA. Amezcua201995-04-29 NapaNapa County: Along side of Aetna Springs Road, 3 km west of intersection with Pope Valley Road.
DAV302965DAVCollomia diversifoliaDaniel Potter8542016-04-17 NapaNapa County: Knoxville Wildlife Area, upper Zim Zim Creek drainage east of Knoxville-Devihlead Road.
DAV358511DAVCollomia diversifoliaEllen Dean57402009-05-27 ColusaColusa County: Walker Ridge. Along Walker Ridge Road. Lookout area with fence and view of Indian Valley Reservoir. North of turnoff to Indian Valley Reservoir and S of turnoff to picnic area. W side of road.
DAV358512DAVCollomia diversifoliaEllen Dean57172009-05-27 ColusaColusa County: Walker Ridge. Along Walker Ridge Road. Til Jones Spring area on W side of road, ca. 6.5 road mi N of junction with Hwy 2 W side of road.
DAV358513DAVCollomia diversifoliaCraig Thomsen2882b2009-05-12 ColusaColusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. East- facing hillslope above (west border) Eaton Springs meadow complex.
DAV358514DAVCollomia diversifoliaEllen Dean60062010-05-12 LakeLake County: southern part of Cache Creek Wilderness Area. Area is accessed via Morgan Valley Road and eastern forks of Rocky Creek Road. Permission granted to use private road to get to Wilderness boundary.
DAV358515DAVCollomia diversifoliaEllen Dean61562010-06-16 LakeLake County: Cache Creek Wilderness. Southern part of Wilderness on west side of Rocky Creek Drainage. Above undeveloped road that leads into drainage at terminus of west forks of Rocky Creek Road.
DAV358516DAVCollomia diversifoliaCraig D. Thomsen23102000-05-11 ColusaColusa Co.: Bear Creek Botanical Management Area. On Caltrans right-of-way, south side of Hwy 20, about 0.5 mile west of Hwy 20-16 instersection, between Colusa Co. milepost 2.63 and 2.17.
GH01083889GHCollomia diversifoliaM. K. Brandegee1884-07-01 LakeEpperson′s Road
GH01083979GHCollomia diversifolia;lsqb;data not captured;rsqb;1915-06-25 Lake[data not captured]
HREC316HRECCollomia diversifoliaA. H. M.HF 1261957-06-11 MendocinoWatershed IA.
HSC214001HSCCollomia diversifoliaThomas E. Higley701974-05-04 Colusa3-4 N of T junction of Indian Valley.
HSC214002HSCCollomia diversifoliaMaralyn O′Meara3411974-05-04 ColusaWalker Ridge Rd., 0.7 mi. from junction with Little Indian Valley Rd.
HSC214003HSCCollomia diversifoliaPatricia Shesgreen571978-04-23 LakeBarrel Springs Campground
HSC214004HSCCollomia diversifoliaTeri Bartowski231980-04-19 LakeAlong Walker Ridge Rd. .5 N of jct. with access Rd. to Indian Valley Dam.
HSC214005HSCCollomia diversifoliaTeresa Prendusi511974-05-04 ColusaBeyond Clyde Mine 1-8 mi.
HSC214006HSCCollomia diversifoliaRobert M. Specht8241977-04-28 LakeUkiah district: on S running ridge
HSC214007HSCCollomia diversifoliaBarbara Kelly3601977-04-24 LakeIntersection of Bartlett Springs Rd. and Grapevine Spring Rd.
HSC214008HSCCollomia diversifoliaM.A. Baker2231977-04-24 ColusaWalker Ridge Rd. above Barrel Springs Campground
HSC214009HSCCollomia diversifoliaM.A. Baker2171977-04-24 LakeBarrel Springs Campground.
HSC214010HSCCollomia diversifoliaJ.P. Smith51911972-04-08 Lake0.2 N of jct. of Hwy. 20 Walker Ridge Rd.
HSC214011HSCCollomia diversifoliaJ.P. Smith97431978-04-22 LakeLake-Colusa County line, Walker Ridge Rd., 0.6 mi. from its junction with Hwy. 20
HSC214012HSCCollomia diversifoliaThomas W. Nelson8111973-05-05 MendocinoW of Roberts Lake.
HSC214013HSCCollomia diversifoliaThomas W. Nelson58111980-06-22 ShastaShasta-Trinity National Forest, along USFS Rd. 2 N07 E of junction with Rd. 41
HSC214014HSCCollomia diversifoliaThomas W. Nelson51451980-05-03 NapaAlong Butts Canon Rd. N of Pope Valley
JEPS100384UCJEPSCollomia diversifoliaDean W. Taylor176592001-05-15 NapaCedar Valley (ca. 3 air miles South from Knoxville)
JEPS101634UCJEPSCollomia diversifoliaDean W. Taylor166711998-06-18 NapaButts Canon, small side canyon 0.5 mi above (north of) mouth into Pope Valley
JEPS101657UCJEPSCollomia diversifoliaDean W. Taylor164671998-06-03 Napadirt rd 0.4 miles N Twin Peak Mine, Bateman Cr drainage
JEPS101660UCJEPSCollomia diversifoliaDean W. Taylor164481998-05-20 NapaButts Canon, serpentine slopes ca. 0.5 mi E of Butts Canon Rd from a point 0.6 miles up from mouth
JEPS103103UCJEPSCollomia diversifoliaMary L. Bowerman1975-06-07 Contra CostaE of Murchio Gap, on and near fire road Mount Diablo
JEPS110463UCJEPSCollomia diversifoliaLowell Ahart127352006-06-15 GlennOn the south side of Black Diamond Road, about 2 miles west of the paved road. about 4 miles (by road) from Stonyford
JEPS110957UCJEPSCollomia diversifoliaJake Ruygt8471980-04-22 Napa22.0 miles north of Pope Canon Rd. on Berryessa-Knoxville R
JEPS110958UCJEPSCollomia diversifoliaJake Ruygt14321983-04-17 NapaRed Hill, Mt. St. Helena
JEPS112561UCJEPSCollomia diversifoliaJake Ruygt3932b1998-04-22 NapaTurner Mtn. about .6 mile from intersection Cement Cr Rd-Myster.V
JEPS120431UCJEPSCollomia diversifoliaJake Ruygt55542010-05-15 NapaSnell Valley - Missimer Preserve, Butts Creek.
JEPS128533UCJEPSCollomia diversifoliaRyan E. O′Dell2015-05-21 StanislausDel Puerto Canon.
JEPS128870UCJEPSCollomia diversifoliaJake Ruygt63342017-04-29 NapaSouth of Snell Peak. Aetna Springs 7.5 Quad.
JEPS3761UCJEPSCollomia diversifoliaC. R. Bell8811951-03-24 Lake6 mi se Middletown (on Pope Valley road, hill by Dieterts Reservoir)
JEPS41088UCJEPSCollomia diversifoliaRimo Bacigalupi, L. R. Heckard90891965-05-15 Napa0.5 mi se Devilhead Road (from Knoxville to Cedar Valley) (headwaters of Zim Zim Creek, ne Napa County); Zim Zim Creek
JEPS71038UCJEPSCollomia diversifoliaMilo S. Baker77321934-04-12 Lakenear Mirabel Mine (w of Middletown)
JEPS79511UCJEPSCollomia diversifoliaEdward Lee1978-05-13 Contra CostaMeridian Ridge Mt. Diablo
JEPS94201UCJEPSCollomia diversifoliaVernon Oswald, Lowell Ahart90061998-05-07 ColusaBartlett Springs Road 2.1 mi w of Bear Valley Road (0.8 mi e of Sawtelle Valley and Grapevine Flat Roads); Bartlett Springs Road
JEPS99515UCJEPSCollomia diversifoliaMary Bowerman1975-05-26 Contra CostaMount Diablo, Murchio Gap. W of the saddle
LA86509LACollomia diversifoliaRoman Gankin5191965-05-06 Lakehill overlooking Cold Spring Camp, 0.9 mi. E of Little Indian Valley (Kowalski Ranch and Stanton Creek)
POM310951RSACollomia diversifoliaH. L. Mason117411938-05-01 Lake3 miles east of Middletown
POM332471RSACollomia diversifoliaL. E. Philbrick351980-04-19 LakeAlong Walker Ridge Road, 0.5 miles north of jct. with access road to Indian Valley Dam
PUA40727PUACollomia diversifoliaThomas Nelson1980-06-22 ShastaLocal landmark: Regan Meadow. Dubakella Mt Quad.
PUA43991PUACollomia diversifoliaG.L. Clifton1980-05-26 NapaLocal landmark: Butts Canon. Aetna Springs Quad.
PUA43997PUACollomia diversifoliaG.L. Clifton1980-04-26 NapaLocal landmark: Canon. Capell Valley Quad.
PUA46284PUACollomia diversifoliaG.L. Clifton1980-05-31 NapaLocal landmark: Butts Canon. Aetna Springs Quad.
PUA46972PUACollomia diversifoliaG.L. Clifton1981-04-26 NapaLocal landmark: Luhman Property -- Sage Canyo. Yountville Quad.
PUA46980PUACollomia diversifoliaG.L. Clifton1981-04-26 NapaLocal landmark: Luhman Property -- Sage Canyo. Yountville Quad.
PUA47542PUACollomia diversifoliaG.L. Clifton1981-05-07 NapaLocal landmark: Knoxville Road North. Knoxville Quad.
PUA47548PUACollomia diversifoliaG.L. Clifton1981-05-07 NapaLocal landmark: Harrison Mine. Knoxville Quad.
PUA47593PUACollomia diversifoliaG.L. Clifton1981-05-07 NapaLocal landmark: Knoxville Road North. Knoxville Quad.
PUA47719PUACollomia diversifoliaG.L. Clifton1981-05-12 NapaLocal landmark: Hunting Creek. Jericho Valley Quad.
PUA47722PUACollomia diversifoliaG.L. Clifton1981-05-12 LakeLocal landmark: Red Elephant Mine. Jericho Valley Quad.
PUA47732PUACollomia diversifoliaG.L. Clifton1981-05-12 NapaLocal landmark: Devilhead Creek. Knoxville Quad.
PUA47864PUACollomia diversifoliaG.L. Clifton1981-05-25 LakeLocal landmark: Morgan Valley. Jericho Valley Quad.
PUA47874PUACollomia diversifoliaG.L. Clifton1981-05-25 NapaLocal landmark: Knoxville-lakeport Road. Jericho Valley Quad.
PUA47901PUACollomia diversifoliaG.L. Clifton1981-05-21 YoloLocal landmark: Harrison Mine. Jericho Valley Quad.
PUA47967PUACollomia diversifoliaG.L. Clifton1981-05-29 NapaLocal landmark: Devilhead Creek. Knoxville Quad.
PUA48297PUACollomia diversifoliaG.L. Clifton1981-06-23 NapaLocal landmark: Cedar Creek. Jericho Valley Quad.
PUA48320PUACollomia diversifoliaG.L. Clifton1981-05-25 LakeLocal landmark: Big Canon Creek. Whispering Pines Quad.
PUA48369PUACollomia diversifoliaG.L. Clifton1981-06-02 YoloLocal landmark: Little Blue Ridge. Knoxville Quad.
PUA48373PUACollomia diversifoliaG.L. Clifton1981-06-02 YoloLocal landmark: Little Blue Ridge. Knoxville Quad.
PUA48415PUACollomia diversifoliaG.L. Clifton1981-06-08 LakeLocal landmark: East Branch Jericho Creek. Jericho Valley Quad.
PUA48426PUACollomia diversifoliaG.L. Clifton1981-06-08 LakeLocal landmark: East Branch Jericho Creek. Jericho Valley Quad.
PUA55836PUACollomia diversifoliaG.L. Clifton1983-06-14 LakeLocal landmark: Cobb Valley. Whispering Pines Quad.
PUA58647PUACollomia diversifoliaG.L. Clifton1981-06-05 LakeLocal landmark: Crazy Creek. Middletown Quad.
PUA63387PUACollomia diversifoliaJoe Callizo1984-05-26 NapaLocal landmark: Dollarhide Road. Chiles Valley Quad.
PUA66262PUACollomia diversifoliaG.L. Clifton1984-04-22 LakeLocal landmark: High Valley Creek. The Geysers Quad.
PUA66649PUACollomia diversifoliaG.L. Clifton1984-05-19 ColusaLocal landmark: Mill Creek. Fouts Springs Quad.
RSA183448RSACollomia diversifoliaRoman Gankin5191965-05-06 LakeOverlooking Cold Spring Camp, 0.9 mile east of Little Indian Valley (Kowalski Ranch and Stanton Creek)
RSA259552RSACollomia diversifoliaDonald Spalinger401974-05-04 LakeWalker Ridge Road, 0.5 mile S of Clyde Mine.; Wilbur Spring
RSA304647RSACollomia diversifoliaD. H. Wilken119241973-05-06 NapaAlong Copell Creek, 4 miles N of Moskowite Corner, E of Red Mountain
RSA372076RSACollomia diversifoliaKatherine Brandegees.n.1884-07-01 LakeEpperson′s Road
RSA409249RSACollomia diversifoliaMilo S. Bakers.n.1945-05-09 LakeButte′s Canon below Black Oak Villa
RSA409250RSACollomia diversifoliaM. B. Dunkle91051944-07-15 SiskiyouSiskiyou National Forest
RSA71930RSACollomia diversifoliaF. W. Peirson9141912-07-01 MarinMt. Tamalpais
RSA74124RSACollomia diversifoliaMilo S. Baker120381948-05-12 LakeButt′s Canon just below Black Oak Villa
RSA90847RSACollomia diversifoliaMilo S. Baker127081953-05-31 TehamaLogging road west of Paskenta near 10 mile post
SBBG186858SBBGCollomia diversifoliaD. H. Wilken119211973-05-06 LakeButts Cyn. 0.5 N of Napa-Lake County boundary
SBBG193133SBBGCollomia diversifoliaJohn M. Tucker44451980-05-03 LakeSummit of Walker Ridge, on west side of Walker Ridge Road just north of Brim Road
SFV110806SFVCollomia diversifoliaM. H. Grayum73511973-05-15 Contra CostaSouth Coast Ranges; Mount Diablo. North slope along Deer Flat - Meridian Ridge fire road.
SFV110807SFVCollomia diversifoliaR. Gankin5191965-05-06 LakeNorth Coast Ranges; South-facing hill overlooking Cold Spring Camp, 0.9 miles east of Little Indian Valley (Kowalski Ranch and Stanton Creek).
UC1010403UCJEPSCollomia diversifoliaMilo S. Baker, H. K. Wagnon127081953-05-31 Tehamalogging road w Paskenta (near 10 mi post, w Tehama Co.)
UC1051697UCJEPSCollomia diversifoliaHelen K. Sharsmith42601953-06-18 Colusaon Letts Valley road above Fouts Springs; Inner North Coast Ranges, Mendocino National Forest
UC1076032UCJEPSCollomia diversifoliaHerbert L. Mason147931947-05-18 Tehamaw Paskenta; Paskenta Grade
UC1178932UCJEPSCollomia diversifoliaHerbert L. Mason141521953-04-18 Lakeserpentine ridge 4.5 mi n Middletown (near Anderson′s Springs)
UC1181373UCJEPSCollomia diversifoliaMilo S. Baker120381948-05-12 Lakejust below Black Oak Villa; Butt′s Canon
UC1191132UCJEPSCollomia diversifoliaHerbert L. Mason145191953-05-05 Colusas end Cracker Box Ridge (along creek); Little Stoney Creek
UC1191142UCJEPSCollomia diversifoliaHerbert L. Mason145221953-06-08 LakeBlack Oak Villa Butts Canon
UC1278070UCJEPSCollomia diversifoliaBeecher Crampton34401956-05-21 Lake1.5 mi n Middletown (barren roadcut)
UC1278746UCJEPSCollomia diversifoliaG. L. Stebbins, Jr.1948-05-09 Napa6.5 mi se Pope Valley (ne-facing slopes); Chiles Valley
UC1282736UCJEPSCollomia diversifoliaJ. R. Sweeney10381953-05-18 Lakene facing slope on Pope Valley road 0.4 mi se Black Oak Villa (1.1 mi from Lake-Napa county line); Butts Canon
UC1282737UCJEPSCollomia diversifoliaJ. R. Sweeney7641952-05-02 Lakene-facing slope on Pope Valley road 0.4 mi se Black Oak Villa (1.1 mi from Lake-Napa county line); Butts Canon
UC1299510UCJEPSCollomia diversifoliaFreed W. Hoffman25351948-06-28 GlennBlack Diamond Mountain
UC1299511UCJEPSCollomia diversifoliaFreed W. Hoffman24831948-06-26 Lake3 mi n Bear Creek crossin < g >; Rice Creek
UC1299592UCJEPSCollomia diversifoliaFreed W. Hoffman27381948-05-09 LakeBig Creek Canon
UC1299593UCJEPSCollomia diversifoliaFreed W. Hoffman16881947-06-20 Lakebetween lower Nye and upper Nye (w side of mountain); Snow Mountain
UC1299594UCJEPSCollomia diversifoliaFreed W. Hoffman16041947-06-21 Lakeon road to Thistle Glade (w side of mountain); Snow Mountain
UC1561247UCJEPSCollomia diversifoliaBarbara Ertter, Annetta Carter85141989-05-28 Napaon Berryessa Rd 2 mi se Lake County line (near Knoxville, serpentine hills s of road)
UC1736677UCJEPSCollomia diversifoliaDean W. Taylor108131990-05-25 NapaButts Canon Road, near junction with Snell Road.
UC581337UCJEPSCollomia diversifoliaBacigalupi, Kraebel1934-05-01 MendocinoMendocino National Forest to coastal Mendocino Co.
UC84867UCJEPSCollomia diversifoliaK. Curran1884-07-01 LakeEpperson′s Road;; ; Epperson′s Road, Lake Co.
UC908351UCJEPSCollomia diversifoliaH. K. Sharsmith35841936-04-23 Stanislause-facing serpentine talus of canyon of Adobe Creek Mount Hamilton Range, Red Mountains (tributary to Arroyo del Puerto)
UC908758UCJEPSCollomia diversifoliaMilo S. Baker86151936-04-01 Lakeburned-over area near Mirabel Mine
UC963990UCJEPSCollomia diversifoliaR. F. Hoover49361941-04-26 Lake5 mi e Middletown (on road to Pope Valley)
UC971708UCJEPSCollomia diversifoliaHerbert L. Mason135701948-05-09 Napaon gravel bars of stream near head of canyon Butts Canon
UC971716UCJEPSCollomia diversifoliaHerbert L. Mason117411938-05-01 Lakeserpentine outcrop 3 mi e Middletown
UCR0105604UCRCollomia diversifoliaMilo S. Baker120381948-05-12 LakeButts Canon just below Black Oak Villa
UCR0105605UCRCollomia diversifoliaLarry F. LaPres.n.1986-05-08 LakeBerryessa-Knoxville Road at the Lake-Napa county line, along Hunting Creek at the SE end of Morgan Valley.
UCR0105606UCRCollomia diversifoliaJohn C. Roos48731950-07-22 Sonoma2 miles east of Duncan Mills
UCSB062587UCSBCollomia diversifoliaDavid Magney6-192019-04-29 LakeNW Calif, Inner North Coast Ranges, Blue Lakes Ridge, North Canon; Upper Lake Quad.; SW1 W1-4SW1-4 S4, T15N R10W Mt. Diablo Base Meridian; Saratoga Springs Retreat, along trail N of compound.
UCSC100004494UCSCCollomia diversifoliaDylan M. Neubauer1412015-04-26 Napa(NCoRI) Butts Canon Road, .29 air-mi NW junction w- Snell Valley Road

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