Click on column header to sort data (* sorts by family); click in leftmost checkbox to select record. CCH Help Page .
Turn on yellow flags to show possible range discrepancies.
Read more ...
?
Specimen ID
Determination *
Collector
Collection Date
Collection Number
County
Locality
Elevation in meters
Feedback
CHSC46859
Acer macrophyllum
Vernon Oswald
1989-9-12
4007
Colusa
Goat Mtn Rd 3.0 mi wsw of Lodoga-Stonyford Rd, ca. 6 mi (air) s of Stonyford.
426
Comment
CAS-BOT-BC334173
Acer negundo var. californicum
Roxana Stinchfield
1916-7-8
398
Colusa
Sycamore Slough, Stinchfield Ranch
Comment
HSC45700
Achillea millefolium
Sheila Logan
1978-4-22
62
Colusa
Bear Valley Rd., 1.5 mi. from its junction with Hwy. 20
412
Comment
CHSC105753
Achyrachaena mollis
Christine C. Lorain
1989-4-15
1853
Colusa
Junction of Hwy 20 with Hwy 16, 41 miles SW of Williams.
152
Comment
CHSC27825
Achyrachaena mollis
K. D. Whitney
1978-4-8
32
Colusa
Ca. 0.3 mi w of jct of Hwys 20 and 16, s side of Bear Creek, ca. 18 mi sw of Williams.
321
Comment
CHSC81215
Achyrachaena mollis
Caroline Warren; Jenny Marr, Heidi West, Joyce Lacey-Rickert, Julie
1998-4-14
Colusa
Vicinity of Grapevine Creek and Sites-Lodoga Road.
137
Comment
UCD163687
Achyrachaena mollis
Craig Thomsen
1999-4-15
1989
Colusa
Bear Valley. About 5 miles north of Hwy 20, west of Bear Valley Rd.
Comment
POM284473
Achyrachaena mollis
Lyman Benson
1933-4-16
4330
Colusa
5 miles east of Lake County line. Mt. Range: Inner N. Coast; Watershed: N. Fork Cache Creek.
457
Comment
UCSC001480
Achyrachaena mollis
Peter Kamb
1950-1
1691
Colusa
Stony ford
Comment
CHSC94284
Acmispon americanus var. americanus
Lowell Ahart
2006-8-9
13112
Colusa
Gravel bar on the south side of Stony Creek, at Mine Camp, about 3 1/2 miles (air) west of Stonyford.
455
Comment
UCD64282
Acmispon brachycarpus
Craig D. Thomsen
2000-3-31
2098
Colusa
Bear Creek Botanical Management Area. On Caltrans right-of-way, south side of Hwy 20, 0.25 mile west of Hwy 20/16 instersection, Colusa Co. milepost 3.00.
310
Comment
UCR261667
Acmispon brachycarpus
Ann Howald
2003-6-9
2367
Colusa
Inner North Coast Ranges, Indian Valley, east side of East Park Reservoir, c. 3 miles north of Lodoga, north of Last Chance camping area
372
Comment
UCR261746
Acmispon brachycarpus
Ann Howald
2003-6-9
2362 B
Colusa
Inner North Coast Ranges, Indian Valley, east side of East Park Reservoir, c. 3 miles north of Lodoga, near Rocky Ridge camping area
424
Comment
UCD163334
Acmispon grandiflorus
Craig D. Thomsen
2009-5-3
2805
Colusa
Walker Ridge. Vicinity of Walker Ridge Rd., about 3 plus miles north of Hwy 20.
841
Comment
UCD84430
Acmispon grandiflorus
Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk
2010-6-2
6045
Colusa
Walker Ridge. Along Walker Ridge Road on southern part of the ridge, south of turnoff to Indian Valley Reservoir.
769
Comment
UCSB61633
Acmispon grandiflorus
Heckard, L.
1969-5-28
Colusa
Road above and west of Fouts Springs
762
Comment
SBBG100086
Acmispon grandiflorus var. grandiflorus
L. R. Heckard
1969-5-29
2240
Colusa
Trough Spring Ridge Rd, 0.2 mi N of its jct with Crackerbox Ridge Rd, ca. 6.5 air mi SE of Stonyford
1127
Comment
HSC48196
Acmispon micranthus
Thomas W. Nelson, Jane P. Nelson
1978-4-29
3960
Colusa
Along Bear Valley Rd., 2.5 mi. from junction with Hwy. 20
366
Comment
CHSC79504
Acmispon rubriflorus
B. Castro; L. P. Janeway
2000-5-3
1121
Colusa
Vicinity of Sites, Huffmaster Rd,and Antelope and Grapevine Creeks, just S of the divide between the two creeks.
365
Comment
UCR261740
Acmispon rubriflorus
Ann Howald
2003-6-9
2364
Colusa
Inner North Coast Ranges, Indian Valley, east side of East Park Reservoir, c. 3 miles north of Lodoga, just north of Eagle Eye camping area
377
Comment
HSC44246
Acmispon wrangelianus
Barbara Kelly
1977-4-24
351
Colusa
Along Walker Ridge Rd. above Barrel Springs Campground.
701
Comment
UCD163209
Acmispon wrangelianus
Craig D. Thomsen
2000-4-28
2200
Colusa
Bear Creek Botanical Management Area. CalTrans right-of-way along Hwy 20 (south side), about 0.3 mile west of Hwy 20/16 intersection.
345
Comment
UCD57278
Acmispon wrangelianus
Ellen Dean; C. Thomsen, S. Bledsoe, J. Alderson, M. Starbuck
2007-4-7
3646
Colusa
BLM Payne Ranch. Mouth of Craig Canyon. Along unimproved road, about 2 road miles south of junction of Hwy 20 and Hwy 16. .
316
Comment
HSC72177
Adenostoma fasciculatum
J. P. Smith, Thomas W. Nelson, Jane P. Nelson
1978-4-2
9555
Colusa
Bear Valley Rd., 1.3 mi. from its junction with Hwy. 20
366
Comment
UC217393
Adenostoma fasciculatum
H. M. Hall
1919-10-5
Colusa
on plains n. of town and e. of R.R. Hershey
Comment
UCD84556
Adenostoma fasciculatum
Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society
2010-6-5
6081
Colusa
Walker Ridge. Along Walker Ridge Road on southern part of the ridge, south of turnoff to Indian Valley Reservoir.
683
Comment
SEINET10866059
Adenostoma fasciculatum
Katherine L. Morris
1973-6-6
Morris 390
Colusa
Chaparral woodland and sparse oak, on hwy 20, 0.3 miles e of lake co line
Comment
CHSC112264
Adiantum jordanii
Lowell Ahart
2013-5-1
18674
Colusa
Inner North Coast Range. On the south side of the wash, north side of State Highway 20, just east of Lake County Line, 12.2 miles (air) east-northeast of Clear Lake (town), 17.1 miles (air) west of Williams.
566
Comment
CHSC114944
Adiantum jordanii
Lowell Ahart
2015-4-1
19989
Colusa
Northside of State Highway 20, 1/2 mile east of Lake County Line, 12 miles (air) east- northeast of Clear Lake (town), 17 miles (air) west of Williams. Chaparral.
520
Comment
CHSC80490
Aegilops cylindrica
Caroline Warren; Joyce Lacey-Rickert
1998-5-8
Colusa
Vicinity of Sites and Antelope Creek.
91
Comment
UCD51585
Aegilops triuncialis
D. Sanchez-Mata
1998-7-9
s.n.
Colusa
Bear Valley, Destanella Flat-Walker Ridge.
450
Comment
UCR206362
Aegilops triuncialis
George K. Helmkamp, E. A. Helmkamp
2009-5-20
14749
Colusa
Inner North Coast Ranges, along CA-16 at 'Cowboy Camp' 1.0 mile south of the junction with CA-20, adjacent to Bear Creek
332
Comment
CDA4026
Aeschynomene rudis
G. D. Barbe, Daryl Brown
1990-8-29
4392
Colusa
West side of Boggs Road between Dodge and Fonseca Roads; 5.6 km southwest of Princeton.
0
Comment
HSC59124
Aesculus californica
Terry Roth
1979-5-7
40
Colusa
Where Hwy. 20 enters Salt Canyon along Salt Creek
122
Comment
JEPS81298
Agastache urticifolia
L. R. Heckard and J. C. Hickman
1982-7-5
5912
Colusa
s side Snow Mt. (along streamlet below Summit Springs); s side of Snow Mt.
1524
Comment
UCD57716
Agoseris grandiflora
Jordan Thompson; with Plant Biology 102
2007-4-29
1
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of State Routes 20 and 16. Central/Eastern part of ranch. Craig Canyon. North side of Craig Creek on south side of unimproved road.
335
Comment
UCD67033
Agoseris heterophylla
Ellen Dean; Davis Botanical Society
2008-5-31
5014
Colusa
west of I-5 at Maxwell, Goat Mountain, ridge below summit off of Goat Mountain Road.
1734
Comment
JEPS36283
Agoseris heterophylla var. cryptopleura
W. L. Jepson
1920-5-24
9029
Colusa
Bear Valley
Comment
JEPS35661
Agoseris heterophylla var. cryptopleura
W. L. Jepson
1932-5-7
16266
Colusa
Indian Valley, north of Leesville.
518
Comment
RSA424738
Agoseris heterophylla var. heterophylla
Aaron Liston, M. A. Blumler
1987-4-26
667 -2
Colusa
Bear Valley - Lodoga Road, 6.6 miles S of Bartlett Springs Jct.
Comment
POM292576
Agoseris heterophylla var. heterophylla
Lyman Benson
1933-4-16
4328
Colusa
5 miles east of Lake County line. Mt. Range: Inner N. Coast; Watershed: N. Fork Cache Creek.
457
Comment
UCD51793
Agrostis avenacea
Beecher Crampton
1958-6-27
4985
Colusa
5 miles south of Colusa.
Comment
UCD51802
Agrostis avenacea
Beecher Crampton
1963-8-5
6871
Colusa
3/4 mile E of Cortena, Lurline Road.
Comment
UCD51826
Agrostis avenacea
A. A. Beetle
1942-5-21
3274
Colusa
12 miles north of Williams.
Comment
CHSC94403
Agrostis exarata
Lowell Ahart
2006-8-9
13167
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
347
Comment
JEPS75878
Agrostis exarata
L. R. Heckard
1974-9-10
3914
Colusa
ne slope West Peak (Snow Mt); Snow Mt., West Peak
2072
Comment
UCD64042
Agrostis exarata
Craig D. Thomsen
2000-6-23
2427
Colusa
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, Colusa Co. milepost 2.63.
304
Comment
CHSC91020
Aira caryophyllea
D. Isle
2002-4-18
298
Colusa
Mendocino National Forest--North Coast Ranges. Middle Fork Stony Creek Watershed. N of Chlorinator bldg., Rd. to Bathhouse Trail.
548
Comment
CAS-BOT-BC445318
Alisma lanceolatum
Milo S. Baker
1946-9-5
11631
Colusa
Along Hiwy. bet. Colusa and Williams
Comment
UCR200661
Alisma triviale
Craig D. Thomsen
2006-8-17
2711
Colusa
BLM Payne Ranch, c. 0.25 mi. south of intersection between Hwy 16 and Hwy 20, near confluence of Hamilton Flat and Jackson Canyon drainages, c. 10 meters east of Bear Creek, west of Hwy 16
Comment
UCD57115
Allium
Gordon Harrington; Diana Hickson
2007-4-7
0019
Colusa
Colusa Co. Ca. BLM Payne Ranch, SW intersection of Hwy 16 and Hwy 20, approx. 1/2 m WNW of Roadkill Cafe.
463
Comment
CHSC112205
Allium amplectens
Lowell Ahart
2013-5-1
18682
Colusa
Inner North Coast Range. Near a small drainage, north of the wash and State Highway 20, just east of Lake County Line, 12.2 mile (air) east-northeast of Clear Lake (town), 17.1 miles (air) west of Williams.
566
Comment
POM174568
Allium amplectens
Roxana S. Ferris
1926-4-23
6578
Colusa
Stonyford.
Comment
UCD138480
Allium amplectens
G. L. Stebbins Jr.
1962-5-6
6024
Colusa
along Highway No. 20, on south bank of Bear Creek, between Williams and Lower Lake, south of Wilbur Springs.
457
Comment
UCD82863
Allium amplectens
Gordon Harrington
2008-4-13
76
Colusa
BLM Payne Ranch. Slopes to the SW of junction of Hwy 16 and Hwy 20. E of unnamed creek (flowing now).
349
Comment
CAS-BOT-BC459582
Allium amplectens
Roxana S. Ferris
1926-4-23
6578
Colusa
Stonyford
Comment
UC119994
Allium amplectens
T. S. Brandegee
1890-6-22
Colusa
Snow Mt.
Comment
UCD141837
Allium cratericola
L. K. Mann; M. D. Mann
1961-4-2
s.n.
Colusa
Bear Valley.
396
Comment
CHSC14088
Allium falcifolium
L. V. Ritter
1969-4-30
239
Colusa
Ca. 100 yds. W of the junction of Highway 20 and 16, Ca 50 yds. N of Highway 20.
Comment
JEPS73488
Allium falcifolium
L. R. Heckard
1972-7-9
3100
Colusa
se slope of East Peak of Snow Mt. East Peak of Snow Mt.
2011
Comment
UCD141834
Allium falcifolium
L. K. Mann
1957-5-30
s.n.
Colusa
road from Goat Mt. Lookout to Upper Lett's Valley.
1524
Comment
UCD141854
Allium falcifolium
Roman Gankin
1958-4-25
s.n.
Colusa
4 miles west of Leesville. Near head of Bear Valley.
304
Comment
UCD141855
Allium falcifolium
Roman Gankin
1958-4-25
s.n.
Colusa
4 miles west of Leesville. Near head of Bear Valley.
304
Comment
SEINET12043975
Allium fimbriatum
A. Eastwood, Howell, J. T.
1938-1
5626
Colusa
Lake-- Colusa county line on road to Williams
Comment
SEINET12051857
Allium fimbriatum
Unknown
1986-1
60124
Colusa
W of Williams, Bear Valley area, Bear Valley Rd, ca .7 mi N of its origin at Rt.20
323
Comment
CAS-BOT-BC135886
Allium fimbriatum subsp. purdyi
James Jokerst
1985-4-5
2204
Colusa
Wilbur Springs Quad., near Coyote Peak
456
Comment
CAS-BOT-BC135884
Allium fimbriatum subsp. purdyi
Katherine Esau
1934-5-5
s.n.
Colusa
West of Williams, Tahoe-Ukiah Highway
Comment
CHSC112220
Allium fimbriatum var. purdyi
Lowell Ahart; John Dittes, Josephine Guardino
2013-4-26
18641
Colusa
Inner North Coast Range. On the north side of State Highway 20, just east of Lake County Line, 12.2 miles (air) east-northeast of Clear Lake (town), 17.1 miles (air) west of Williams.
566
Comment
HSC42391
Allium fimbriatum var. purdyi
Dale McNeal
1977-5-18
2028
Colusa
Beside Hwy. 20, 0.9 mi. W of the junction with Hwy. 16
Comment
HSC67119
Allium fimbriatum var. purdyi
Dale McNeal
1980-4-26
2318
Colusa
Above Bear Valley Rd., 1.4 mi. N of its junction with Hwy. 20
Comment
UCD164168
Allium fimbriatum var. purdyi
Craig Thomsen
2008-5-31
2761
Colusa
Payne Ranch (Bear Creek Ranch) BLM. About 1 mile south of Hwy 20 junction, vicinity of Cowboy Camp.
Comment
UC725287
Allium fimbriatum var. purdyi
A. A. Heller
June, 1937
Colusa
Lake Landing
Comment
CHSC32954
Allium serra
Teri Barowski; Shane Feusier, Ruth Takaki, Carol Zimmerer
1980-4-19
47
Colusa
Leesville Road, road from Leesville to Williams, 3.8 miles east of Leesville.
Comment
HSC72137
Allium serra
J. P. Smith, Thomas W. Nelson, Jane P. Nelson
1978-4-2
9569
Colusa
Bear Valley Rd., 2.1 mi. from its junction with Hwy. 20
366
Comment
UC766754
Allium serra
R. F. Hoover
1938-4-24
3216
Colusa
w Arbuckle; Sand Creek foothills
Comment
CAS-BOT-BC475543
Allium serra
Roxana S. Ferris
1917-4-14
557
Colusa
Foothills 7 miles west of Arbuckle
Comment
CAS-BOT-BC475549
Allium serra
James R. Shevock
1973-4-14
2551
Colusa
Occasional along Leesville Road; Northern Coast Ranges
Comment
HSC47565
Allium serra
J. P. Smith, J. O. Sawyer
1978-4-29
9793
Colusa
Bear Valley Rd., 5.9 mi. from its junction with Hwy. 20
366
Comment
UCD141808
Allium serra
L. K. Mann
1958-5-3
s.n.
Colusa
0.2 mi. toward Clear Lake from junction of California Highway #16 and #20.
Comment
UCD141824
Allium serra
M. Yamaguchi; D. Hughes, D. G. Hunt
1965-4-29
s.n.
Colusa
6.6 miles south of Lodoga on Leesville-Lodoga Road, on right side of road.
Comment
UCD141827
Allium serra
M. Yamaguchi; D. Hughes, D. G. Hunt
1965-4-29
s.n.
Colusa
ca. 8.8 miles west of Maxwell (U.S. Highway 99W) or ca. 0.6 mile east of Sites about 180 feet northwest of bridge and old stone house.
Comment
UCD141829
Allium serra
M. Yamaguchi; D. Hughes, D. G. Hunt
1965-4-29
s.n.
Colusa
along road 3.2 miles past junction of California 16 and 20, toward Rumsey, SW part of county.
Comment
UCD15285
Allium serra
Claire Warshaw
1985-4-13
9
Colusa
along Bear Valley Road, 8 miles northwest from intersection with highway 20;
390
Comment
UCD15595
Allium serra
Lisa Montany
1985-4-13
9
Colusa
Bear Valley, 8.6 miles north of Wilbur Springs Rd and Hwy 20 intersection.
457
Comment
CHSC36827
Allophyllum gilioides
B. Castro
1982-3-27
3
Colusa
On roadcut on n side of Hwy 20 at Salt Canyon, n side of Salt Ck, 11 mi wsw of Williams.
143
Comment
UCD118016
Allophyllum gilioides
Glen Holstein
1978-4-15
s.n.
Colusa
Along Bear Valley Road near Trout Creek bridge, Bear Valley.
402
Comment
RSA783325
Allophyllum gilioides subsp. violaceum
R. R. Halse
2010-3-25
7849
Colusa
Along State Hwy 20 ca. 10.7 miles SW of its junction with Interstate Hwy 5 at Williams. In Salt Canyon.
154
Comment
JEPS80816
Alnus rhombifolia
L. R. Heckard and J. C. Hickman
1981-7-31
5789
Colusa
Trout Creek-Box Spring trail Snow Mt., Paradise Creek (along creek, e side of mt.)
1371
Comment
CDA11421
Alopecurus saccatus
G. F. Hrusa, K. van Katwyk
1995-4-22
12142
Colusa
Inner North Coast Ranges; Low wet site in full sun along N side of Leesville Rd. approx. 4 m. NW of Hwy. 20. Annual.
Comment
RSA198503
Alopecurus saccatus
Roxana S. Ferris
1917-8-12
549
Colusa
4 miles east of Williams, alkali plains.
Comment
UCR201557
Amaranthus albus
George K. Helmkamp, E. A. Helmkamp
2008-10-14
14271
Colusa
Sacramento Valley, along CA-20, 2 miles west of Meridian
14
Comment
CHSC112624
Amaranthus californicus
Lowell Ahart
2013-10-1
19089
Colusa
Inner North Coast Range. Strand of East Park Reservoir, about 2 1/2 miles (air) southeast of Stonyford, about 2 1/2 miles northwest of Lodoga, about 10 miles (air) northwest of Sites.
364
Comment
JEPS120702
Amaranthus californicus
Lowell Ahart
2013-10-1
19089
Colusa
Strand of East Park Reservoir, about 2.5 air miles SE of Stonyford, about 2.5 miles NW of Lodoga, about 10 air miles NW of Sites.
Comment
UCD39269
Amaranthus palmeri
B. Crampton
1958-6-26
4973
Colusa
Grieve road just n.e. of Hershy R.R. siding, 5.5 miles south of College City, Colusa County.
Comment
CHSC84959
Ambrosia psilostachya
Lowell Ahart
2003-10-23
10659
Colusa
Along Squaw Creek, just south of East Park Reservoir, about 1/8 mile northwest of Sites Lodoga Road, about 1 mile north of Lodoga, about 21 miles west of Maxwell.
368
Comment
RSA724821
Ambrosia psilostachya
L. Ahart
2006-9-29
13350
Colusa
Between the deep ditch and the Delevan National Wildlife Refuge, north side of Maxwell road, about 3 miles west of Colusa Princeton Road, about 5.5 mileseast of Maxwell.
24
Comment
CAS-BOT-BC55586
Ambrosia psilostachya
Milo S. Baker
1946-9-4
11591
Colusa
Butte Sink, along Gridley-Princeton Road
Comment
CHSC25321
Ammi visnaga
Hayes; Warner, Schlising
1977-8-23
48
Colusa
Along River Rd. on the east side of the Sacramento River, 3.5 mi n Of Colusa.
50
Comment
SEINET7096533
Amsinckia intermedia
Richard R. Halse
2001-3-22
5944
Colusa
Williams; along a vacant lot by 455 - 4th street. 39 9.52 N 122 8.84W (Converted to decimal degrees). Elevation 18 m.
18
Comment
HSC31598
Amsinckia intermedia
Thomas E. Higley
1974-5-5
84
Colusa
0.5 mi. S of N Fork Campground
412
Comment
SFV3062
Amsinckia intermedia
D. West
1960-4-10
11
Colusa
Southern end of Bear Valley, 5 miles northwest of junction of State Highways 16 and 20.
244
Comment
CHSC86519
Amsinckia lunaris
B. Castro; Beth Hendrickson
2003-3-24
1396
Colusa
Vicinity of Sites, hills N of the Sites-Lodoga Rd, and Stone Corral Creek.
323
Comment
CHSC89610
Amsinckia lunaris
B. Castro; Aric Lester, Shirley Innecken
2004-4-12
1444
Colusa
Vicinity of Antelope Valley, Huffmaster Road, and headwaters of Lurline Creek. Near bottom of secluded E-W trending side-canyon.
167
Comment
SD237359
Amsinckia lunaris
G. K. Helmkamp, E. A. Helmkamp
2009-3-11
14368
Colusa
Inner North Coast Ranges Foothills: along CA-20, 9.7 miles southwest of Williams, on the north side of Salt Creek.
162
Comment
UC1178230
Amsinckia lunaris
Peter M. Ray
1950-4-16
1717
Colusa
junction of North Fork and Big Stony Creek (on n side of canyon)
548
Comment
UC1199518
Amsinckia lunaris
Annetta Carter
1938-5-8
1385
Colusa
3 mi n Leesville (on Lodoga Road)
Comment
UC762196
Amsinckia lunaris
R. F. Hoover
1938-4-23
3204
Colusa
grade on Rumsey-Arbuckle Road
Comment
UCD63713
Amsinckia lunaris
Craig D. Thomsen
2008-3-30
2722
Colusa
BLM Payne Ranch. Southwest of intersection of Hwy 16 and Hwy 20, near ridgeline and headwaters of Eula Canyon drainage.
501
Comment
UCD80820
Amsinckia lunaris
Ellen Dean, G. Harrington; K. Mawdsley, C. Thomsen, G. Walden, E. McDermott
2009-3-18
5276
Colusa
BLM Bear Creek (Payne) Ranch, lands to the SW of the jct of Hwys 20 and 16. SW-facing slope above Lynch Canyon on east side of canyon.
517
Comment
UCD83661
Amsinckia lunaris
Gordon Harrington
2008-4-13
77
Colusa
BLM Payne Ranch. Hills SW of junction of Hwy 16 and Hwy 20. W of unnamed creek (flowing now).
388
Comment
CHSC107984
Amsinckia lycopsoides
B. Castro; Robin Carter, Jessica Boyt
2011-4-25
1852
Colusa
Sacramento Valley. Extreme west edge of Sacramento Valley; 5 air mi NW of Maxwell, 1 mi southeast of Funks Reservoir and 800 ft northeast of Tehama-Colusa Canal. Ca 250 ft SE of large +/- saline/alkaline wetland marsh.
59
Comment
POM287399
Amsinckia lycopsoides
Lyman Benson
1935-3-27
6343
Colusa
Williams.
61
Comment
UC1178228
Amsinckia lycopsoides
Peter M. Ray
1950-4-15
1712
Colusa
1.5 mi s Lodoga (road to Leesville)
381
Comment
UCD56909
Amsinckia menziesii
Ellen Dean; Gordon Harrington and Kate Mawdsley
2007-3-30
3512
Colusa
BLM Payne Ranch. In Craig Canyon. Southwest of intersection of Hwy. 16 and Hwy. 20.
326
Comment
UCR233359
Amsinckia menziesii var. menziesii
George K. Helmkamp, E. A. Helmkamp
2011-4-1
17116
Colusa
Western Sacramento Valley, along Maxwell Road, 2.1 miles east of Maxwell, near Delevan Wildlife Refuge
23
Comment
UC1178293
Amsinckia tessellata var. gloriosa
Ray and Chisaki
1952-3-29
K 125
Colusa
Cache Creek
Comment
CHSC34508
Ancistrocarphus filagineus
J. D. Prouty
1980-4-12
80 .66
Colusa
Roadbank of Hwy 20 ca. 0.3 mi W of junction with Hwy 16 near Bear Creek Bridge.
320
Comment
CHSC78593
Ancistrocarphus filagineus
J. Marr; H. West, C. Warren, J. Lacey-Rickert, N. Wight
1998-4-14
Colusa
Vicinity of Antelope Valley.
137
Comment
SEINET7075569
Ancistrocarphus filagineus
A. G. Vestal
1955-4-5
s.n.
Colusa
In mountains [Cortina Ridge] west of Williams on Route 20 at Salt Canyon. 39? deg. 6' 22" North Latitude, -122? deg. 19' 15" West Longitude. UTM Zone 10, 558719mE, 4328566mN. (NAD 27)]. [Coordinate Datum: WGS84/NAD83].
Comment
UCD163684
Ancistrocarphus filagineus
Craig Thomsen
1999-4-15
1985
Colusa
Bear Valley. About 5 miles north of Hwy 20, west of Bear Valley Rd.
Comment
UCD56923
Ancistrocarphus filagineus
Ellen Dean; Gordon Harrington and Kate Mawdsley
2007-3-30
3526
Colusa
BLM Payne Ranch. Southwest of intersection of Hwy. 16 and Hwy. 20. Near headwaters of Craig Canyon.
359
Comment
UCD64285
Ancistrocarphus filagineus
Craig D. Thomsen
2000-3-31
2118
Colusa
Bear Creek Botanical Management Area. On Caltrans right-of-way, south side of Hwy 20, 0.25 mile west of Hwy 20/16 instersection, Colusa Co. milepost 3.00.
310
Comment
CHSC80415
Androsace elongata subsp. acuta
C. Warren; G. Kuenster
2000-4-11
Colusa
Vicinity of Sites, Huffmaster Rd, and Antelope and Grapevine Creeks, just N of the divide between the two creeks.
411
Comment
CHSC81290
Androsace elongata subsp. acuta
L. P. Janeway; B. Castro
2001-4-19
7025
Colusa
Vicinity of Grapevine Creek, Sites-Lodoga Road, and Scotties Spring.
280
Comment
CHSC42572
Angelica tomentosa
Vernon Oswald
1986-6-30
2178
Colusa
Northwest side of Lily Pond near Letts Lake.
1188
Comment
UC29539
Anthemis cotula
J. Burtt Davy
1898-5-1
4280
Colusa
Willows
Comment
CHSC83681
Antirrhinum subcordatum
L. P. Janeway; Shirley Innecken
2002-5-1
7528
Colusa
Inner North Coast Ranges. Vicinity of Grapevine Creek, Rena Canyon, and Scotties Canyon.
243
Comment
UC726114
Antirrhinum subcordatum
A. A. Heller
1940-6-7
15717
Colusa
ridge e Lodogo
Comment
JEPS121750
Antirrhinum subcordatum
David Isle, Ronda Isle
2013-5-19
2039
Colusa
COLUSA County, CA. 01 mi E of Maxwell Grade Summit; burned SW asp. upper drainage slope N of Sites Lodoga Road.
Comment
UCD70221
Antirrhinum vexillocalyculatum
D. Sanchez-Mata
1998-6-24
s.n.
Colusa
Bear Valley. Bear Valley Road. Bear Valley Creek.
370
Comment
CHSC115752
Antirrhinum virga
David Isle
2015-6-20
2157
Colusa
10S -0533568E, 4357508N). North Coast Ranges: 4 mi W of Stonyford; SE of curve at culvert crossing just E of old dumpsite rd jct; uphill 200' S of 18N01 in 2012 Mill Fire area chaparral. N aspect, chamise chaparral; 50-80' above Quercus berberidifolia and #156 RIMA GPS.
439
Comment
CHSC79556
Aphanes occidentalis
B. Castro; L. P. Janeway
2000-5-4
1127 A
Colusa
Vicinity of Sites, Sites-Lodoga Rd, and Grapevine Creek.
246
Comment
CHSC91007
Aphanes occidentalis
D. Isle
2002-4-18
299
Colusa
Mendocino National Forest--North Coast Ranges. Middle Fork Stony Creek Watershed. N of Chlorinator bldg., Rd. to Bath House Trail.
548
Comment
JEPS87724
Apiastrum angustifolium
Vernon H. Oswald and Lowell Ahart
1994-3-23
6017
Colusa
just w of bridge over Sullivan Creek (s of Stonyford, Goat Mountain Road); Goat Mountain Road
505
Comment
UCD170128
Apiastrum angustifolium
Jack Alderson
2016-5-1
s.n.
Colusa
BLM Bear Creek Ranch (formerly Payne Ranch); 2400 feet (730 m) west of the confluence of Brophy Creek with Bear Creek.
341
Comment
JEPS95645
Apocynum cannabinum
Vernon H. Oswald and L. Ahart
1999-6-18
9773
Colusa
Fouts Springs Rd. (M10) 9.9 mi west of Stonyford-Elk Creek Rd.: T17N R7W Sect. 7, 2050 ft, chaparral, serpentine substrate
624
Comment
UCD58178
Apocynum cannabinum
Gordon Harrington
2007-5-31
64
Colusa
BLM Payne Ranch. Lands to the SW of the intersection of Hwy 16 and Hwy 20. Along Thompson Creek, approximately 3/4 mile downstream from Road Kill Cafe.
336
Comment
UCD23339
Aquilegia eximia
A. M. Shapiro
2003-8-19
s.n.
Colusa
Little Stony Creek. Partly shaded serpentine riparian habitat.
475
Comment
JEPS75709
Aralia californica
Alice Q. Howard
1972-7-10
13
Colusa
Paradise Creek at crossing of trail between Fouts Camp and Box Springs; Snow Mt.
1371
Comment
UCD66930
Arceuthobium campylopodum
Ellen Dean; G. Harrington, J. Alderson, E. Bayon, R. Willmarth
2008-6-8
5079
Colusa
BLM Payne Ranch, lands to the SW of jct of Hwys 16 and 20. In western part of ranch, several hundred feet downslope of ridge trail. Along trail that starts along ridge bordering Thompson Creek headwaters and loops back to ridge trail. Large, dammed stock pond, holding water still, in middle of meadow.
Comment
UC1078808
Arceuthobium campylopodum
Job Kuijt
1957-4-30
1278
Colusa
1/2 mi towards Stonyford (blew the Old Mill Campground on the Stonyford Upper Lake Rd)
1127
Comment
UCD15652
Arctostaphylos canescens
Rachelle Raymond
1989-4-8
102
Colusa
Bear Valley.
1097
Comment
SEINET11989693
Arctostaphylos canescens
R. A. DeMartile
1982-1
s.n.
Colusa
between Ladoga & Goat Mt. lookout
792
Comment
CAS-BOT-BC25252
Arctostaphylos canescens subsp. canescens
Roxana S. Ferris
1917-4-14
595
Colusa
5 mi. W of Arbuckle along Sand Creek
Comment
HSC92498
Arctostaphylos canescens subsp. sonomensis
D. Haskamp, E. Sonnenblick, M. Taft
1995-4-1
9
Colusa
On Walker Ridge Rd. 4.8 mi. N of junction with Indian Valley Access Rd.
976
Comment
UCD13384
Arctostaphylos glandulosa
Charles Martin
1986-5-17
34
Colusa
Medocino National Forest. Mill Valley Campground. 3.2 miles south of junction w/ forest service rd. 18 NO1 on Forest Service Rd 17 NO2.
Comment
UCD66998
Arctostaphylos glandulosa
Craig D. Thomsen; Gordon Harrington
2008-7-6
2781 -b
Colusa
BLM Payne Ranch, lands to the SW of jct of Hwys 16 and 20. Western side of ranch along trail that follows the border of Lake and Colusa counties. South of Dunsfield Flat, along ridge trail above Cache Creek Canyon.
640
Comment
UCD51022
Arctostaphylos glandulosa var. glandulosa
G. L. Webster
1989-5-6
4699
Colusa
Near border with Lake County; on Walker Ridge, near Cold Spring Mountain.
Comment
CHSC31970
Arctostaphylos manzanita
L. Ahart
1976-2-14
1002
Colusa
Ca. 3 mi W of sites.
365
Comment
HSC67141
Arctostaphylos manzanita
J. P. Smith, Thomas W. Nelson
1976-4-14
8587
Colusa
Mendocino National Forest, confluence of Stony Creek and N Fork of Stony Creek.
427
Comment
UCD84554
Arctostaphylos manzanita
Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society
2010-6-5
6080
Colusa
Walker Ridge. Along Walker Ridge Road on southern part of the ridge, south of turnoff to Indian Valley Reservoir.
683
Comment
CHSC79496
Arctostaphylos manzanita subsp. elegans
L. P. Janeway
2000-5-31
6773
Colusa
Inner North Coast Ranges. On top of Hornet Nest Ridge, between Hornet Nest Spring and Hornet Nest Hill; about 6.4 km southwest of Stonyford.
884
Comment
UC1388337
Arctostaphylos manzanita subsp. elegans
Freed W. Hoffman
1948-6-28
2439
Colusa
road between Upper Letts Valley and Lower Letts Valley (w Colusa Co.); North Coast Ranges
1219
Comment
CAS-BOT-BC24425
Arctostaphylos manzanita subsp. manzanita
C. Hart Merriam
1919-9-15
s.n.
Colusa
Stony Ford, nw. Colusa Co.
Comment
UCR261618
Arctostaphylos manzanita subsp. manzanita
Ann Howald
2003-3-11
2278
Colusa
Inner North Coast Ranges, Indian Valley, east side of East Park Reservoir, peninsula c. 2.2 miles north of Lodoga
365
Comment
SEINET7258424
Arctostaphylos manzanita subsp. roofii
R. R. Halse
2014-3-25
9034
Colusa
Along the Bear Valley Road ca. 1.8 mi WNW of its junction with State Hwy. 20.
378
Comment
CDA15497
Arctostaphylos patula
G. F. Hrusa, T. D. Wilfred
1998-6-19
14634
Colusa
North Coast Ranges; Goat Mtn. around summit region.
Comment
CHSC22676
Arctostaphylos patula
Robert A. Schlising; Glenn Keator
1962-1-31
2034
Colusa
Coast Ranges. On Goat Mountain.
1097
Comment
SFV8791
Arctostaphylos viscida
S. C. Schank
1960-4-10
51
Colusa
Above Cache Creek, 2 miles northwest of junction of Highway 16 and Highway 20 on road to Bear Valley.
Comment
CHSC62844
Arctostaphylos viscida subsp. pulchella
Vernon H. Oswald
1994-3-23
6011
Colusa
Frenzel Creek Research Natural Area on the S side of Little Stony Creek, in the section on the E side of Frenzel Creek, S of Stonyford.
518
Comment
UCD63712
Arctostaphylos viscida subsp. pulchella
Craig D. Thomsen
2008-3-21
2721
Colusa
BLM Payne Ranch. In narrow canyon just south of Hwy 20 (at Colusa Co. milepost 2.63), 0.5 mile west of intersection of Hwy 16 and Hwy 20.
Comment
CAS-BOT-BC44549
Arctostaphylos viscida subsp. viscida
Eric B. Peterson; Thomas Ward; Matt Foruria
1995-4-1
47
Colusa
Walker Ridge Rd., 0.9 mile NE of junction with Indian Valley Access Rd., adjacent to Freshwater Branch Creek.
810
Comment
RSA589937
Arctostaphylos viscida subsp. viscida
Michael A. Vincent, Robert Rhode, Karl Vincent
1996-3-30
7301
Colusa
Along Brim Rd., 1.9 mi. W juct . Bear Valley Rd.
Comment
UC1299490
Arenaria congesta var. crassula
Freed W. Hoffman
1947-6-20
1608
Colusa
Nort Coast Ranges, summit of Goat Mountain
Comment
UCD82434
Argemone munita
Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth
2009-5-20
5659
Colusa
Walker Ridge. Along Walker Ridge Road, ca. 0.5 road mi N of intersection with road to Indian Valley Reservoir. Parking area, undeveloped roads, flats and slopes on W side of road.
839
Comment
CDA24525
Argemone munita subsp. rotundata
R. Lawley
1960-5-22
Colusa
Stonyford.
0
Comment
CHSC112642
Artemisia douglasiana
Lowell Ahart
2013-10-1
19098
Colusa
Inner North Coast Range. Strand of East Park Reservoir, about 2 1/2 miles (air) southeast of Stonyford, about 2 1/2 miles northwest of Lodoga, about 10 miles (air) northwest of Sites.
364
Comment
CHSC61398
Artemisia douglasiana
Vernon H. Oswald
1993-8-16
5809
Colusa
Sacramento National Wildlife Refuge. Refuge located ca. 7 mi S of Willows, NE corner of Tract 41.
25
Comment
CHSC94281
Artemisia douglasiana
Lowell Ahart
2006-8-9
13100
Colusa
Gravel bar on the south side of Stony Creek, at Mine Camp, about 3 1/2 miles (air) west of Stonyford.
455
Comment
IRVC29848
Artemisia douglasiana
Mark A. Elvin, David Isle, Mark S. Brunell
2006-8-3
4994
Colusa
Mendocino Nat. Forest; E face of Snow Mtn., Stony Creek along M10. Southern Northern Inner Coast Ranges
610
Comment
JEPS104400
Artemisia douglasiana
Lowell Ahart
2003-10-23
10660
Colusa
Along Squaw Creek, just south of East Park Reservoir, ca 1/8 mi nw of Sites Lodoga Rd, ca 1 mi n of Lodoga, ca 21 mi w of Maxwell.
368
Comment
UCD121262
Asclepias cordifolia
Jack Major
1966-6-6
s.n.
Colusa
At junction of Frenzel Creek with Stony Creek.
426
Comment
CAS-BOT-BC222852
Asclepias solanoana
Volney Rattan
1884-6-1
s.n.
Colusa
Above Fonts Springs, Colusa, Coast Mts. North of San Francisco Bay
Comment
UC424842
Asclepias solanoana
Milo S. Baker
1929-6-30
3472 b
Colusa
Snow Mt. Trail to Summit Springs (at Cedar Creek); Snow Mt., Cedar Creek
Comment
JEPS80758
Asclepias speciosa
L. R. Heckard and J. C. Hickman
1981-7-29
5725
Colusa
above Summit Springs (s side of mountain); Snow Mt., Colusa-Lake County Boundary
1554
Comment
RSA74062
Aster sonomensis
Milo S. Baker
1946-9-4
11618
Colusa
Butte Sink, near gate of Colusa Gun Club
Comment
SEINET12318320
Asteraceae
J. A. LeFurgey
1978-1
4
Colusa
ca 0.3 mi W of jct of hwy 20 & 16, S side of Bear Creek, ca 18 mi SW of Williams
322
Comment
CHSC91565
Astragalus clevelandii
D. Isle
1995-7-12
393
Colusa
Mendocino National Forest--North Coast Ranges. Bear Creek Watershed. Adjacent to BLM parcel 281-C.
585
Comment
CDA11399
Astragalus gambelianus
G. F. Hrusa, K. van Katwyk
1995-4-22
12119
Colusa
Inner North Coast Ranges; Walker Ridge Road, approx. 6 m. S of intersection with Bartlett Springs Rd.
Comment
CHSC101594
Astragalus gambelianus
David W. Isle
2002-4-18
1659
Colusa
Mendocino National Forest; N of Fouts Springs, N of Chlorinator Building and road to Bathhouse Trail (Snow Mtn). MDB and M.
524
Comment
HSC72171
Astragalus gambelianus
Thomas W. Nelson, Jane P. Nelson
1978-4-2
9548
Colusa
Bear Valley Rd., 1.3 mi. from its junction with Hwy. 20
366
Comment
UC638665
Astragalus gambelianus
Ethel Crum
1938-5-7
2017
Colusa
4.2 mi n Rumsey (Inner North Coast Range, summit of ridge); Inner North Coast Range, summit of ridge, n of Rumsey
254
Comment
SEINET4673433
Astragalus rattanii
Richard R. Halse
2013-3-27
8764
Colusa
Along State Hwy. 20 just east of the Colusa/Lake County Line, ca. 14.6 miles east of the junction of State Hwy. 20 and 53.; 0
558
Comment
CHSC26263
Astragalus rattanii var. jepsonianus
J. D. Jokerst
1977-4-16
62
Colusa
S side of Bear Creek, Hwy. 20, ca. 18 mi sw of Williams, .3 mi w of jct. Hwys. 20 and 16.
321
Comment
CHSC29256
Astragalus rattanii var. jepsonianus
John Steiner
1977-4-16
46
Colusa
Growing in an open field, ca. 0.5 km w of jct. of Hwys 20 and 16, s side of Bear Creek, ca. 30 km sw of Williams.
322
Comment
HSC44108
Astragalus rattanii var. jepsonianus
Barbara Kelly
1977-4-24
390
Colusa
Along Walker Ridge Rd. above Barrel Springs Campground.
701
Comment Read comments Jul 31 2014
JEPS21844
Astragalus rattanii var. jepsonianus
John R. Swanson
1958-4-26
280
Colusa
along roadside on Bear Valley - Lodoga road 6.6 mi s Barlett Springs junction; Bear Valley - Lodoga Road
365
Comment
RSA475188
Astragalus rattanii var. jepsonianus
Aaron Liston
1988-3-16
701 -1
Colusa
0.45 miles from jct. Hwy 20 on Walker Ridge road.
600
Comment
UC1613418
Astragalus rattanii var. jepsonianus
Charles M. Belshaw
1937-4-25
2830
Colusa
Cooks Spring, Devils Ridge Inner Coast Range, Cooks Spring, Devils Ridge
Comment
UC2029550
Astragalus rattanii var. jepsonianus
Richard R. Halse
2013-3-27
8764
Colusa
Along State Highway 20 just east of the Colusa/Lake County Line, ca. 14.6 miles east of the junction of State Highway 20 and 53
Comment
UCD64415
Astragalus rattanii var. jepsonianus
Craig D. Thomsen
2000-4-12
2144
Colusa
Bear Creek Botanical Management Area. On Caltrans right-of-way, south side of Hwy 20, 0.25 mile west of Hwy 20/16 instersection, Colusa Co. milepost 3.00.
310
Comment
UCD81236
Astragalus rattanii var. jepsonianus
Ellen Dean; G. Harrington, R. Willmarth, B. Rice, and C. Thomson
2009-4-8
5400
Colusa
BLM Bear Creek (Payne) Ranch. Lands to the SW of the intersection of Hwys. 16 and 20. Edge of Bear Creek, near mouth of canyon located to the south of Brophy Canyon.
224
Comment
RSA0003126
Astragalus tener var. ferrisiae
Roxana S. Ferris
1926-4-21
6281
Colusa
3 mi W of Colusa..
Comment
UCSB3001
Astragalus trichopodus var. lonchus
Keator, Glenn
1958-4-16
Colusa
Between Hough springs and Bartlett springs on road to Nice
Comment
CDA11922
Athysanus pusillus
G. F. Hrusa
1989-5-7
6088
Colusa
North Coast Biodiversity Arena; Cedar Mtn. Rd. along Little Stony Creek, approx. 4 miles above intersection with Stonyford-Lodoga Rd.
Comment
CHSC87153
Athysanus pusillus
Jenny Marr; Beth Hendrickson, Jean Witzman, Natalie Wight
1999-2-25
Colusa
Vicinity of Antelope Valley, Antelope Creek, and Sites.
152
Comment
JEPS53214
Athysanus pusillus
W. L. Jepson
16277
Colusa
Lodoga, in Coast Range foothills, w Colusa County Lodoga; Coast Range foothills, Lodoga
457
Comment
SEINET5586423
Athysanus pusillus
Richard R. Halse
2013-1
8763
Colusa
Along State Hwy. 20 just eat of the Colusa/Lake County Line, ca. 14.6 miles east of the junction of State Hwy. 20 and 53
558
Comment
UCD114233
Athysanus pusillus
Beecher Crampton
1958-4-21
4725
Colusa
Colusa-Yolo County line, along State Hwy. 16, junction Bear and Cache Creeks, 7.4 miles northwest of Rumsey.
Comment
UCD58109
Athysanus pusillus
Ellen Dean; G. Harrington and P. McIntyre
2007-3-16
3361
Colusa
Payne Ranch. Along Hwy. 20, Destanella Flat area just E of Lake Co. border. Ca. 3.4 road miles west of junction with Hwy. 16. South side of road. Grassland area to the SSE of Destanella Flat.
572
Comment
UCR225263
Atriplex
Craig D. Thomsen
2008-4-27
s.n.
Colusa
BLM Payne Ranch, lands to the southwest of the intersection of Hwys 20 and 16. Southwest of Cowboy Camp on the west side of Bear Creek
366
Comment
UCR205145
Atriplex argentea
George K. Helmkamp, E. A. Helmkamp
2008-10-14
14250
Colusa
Sacramento Valley, along CA-20, 0.2 mile east of the Sutter County line
9
Comment
UCD66916
Atriplex argentea var. expansa
Craig D. Thomsen; G. Harrington
2008-7-6
2783
Colusa
BLM Payne Ranch. Lands to the SW of the jct of Hwys 20 and 16. Near valley at the bottom of Lynch Canyon at the junction of Thompson and Lynch Creeks. Informal name for the building in the area is 'Roadkill Cafe.' Small stockpond ca. 0.2 miles to the south of Roadkill Cafe.
396
Comment Read comments Jun 8 2011
RSA670513
Atriplex cordulata
Stan C. Spencer
2002-8-8
unnumbered
Colusa
ca. 3-6 miles E of Colusa, along California Highway 20.
Comment
CHSC61039
Atriplex depressa
Vernon H. Oswald; Mike Wolder, Joe Silveira
1993-7-26
5703
Colusa
Colusa National Wildlife Refuge. W side of Pool 3 on the S end of the refuge near Ohm Rd., ca. 2 mi N of Ware Rd., ca. 5 mi S of Colusa.
15
Comment
CHSC80182
Atriplex depressa
B. Castro; G. Kuenster
2000-7-19
1209
Colusa
Vicinity of Maxwell, Funks Creek, and the Glenn-Colusa canal, on low terrace beside S edge of shallow intermittent stream channel draining eastward out of the hills east of Golden Gate.
44
Comment
CHSC80183
Atriplex fruticulosa
B. Castro; G. Kuenster
2000-7-19
1208
Colusa
Vicinity of Maxwell, Funks Creek, and the Glenn-Colusa canal, on low terrace beside S edge of shallow intermittent stream channel draining eastward out of the hills east of Golden Gate.
42
Comment
UCD163708
Atriplex joaquinana
Craig Thomsen
1999-5-10
2020
Colusa
Colusa County. At confluence of Sulphur Creek and Bear Creek. About 3 miles north of Hwy 20.
Comment
UCD97461
Atriplex joaquinana
A. A. Heller
1916-6-9
12394
Colusa
near Williams.
Comment
CAS-BOT-BC168435
Atriplex parishii var. persistens
H. M. Hall
1920-7-12
11012
Colusa
West of Princeton
Comment
JEPS100804
Atriplex persistens
Dean W. Taylor
1993-7-9
13853
Colusa
300 m S of Sacramento National Wildlife Refuge headquarters; Sacramento National Wildlife Refuge
30
Comment
RSA724831
Atriplex prostrata
L. Ahart
2006-9-26
13347
Colusa
South side of the Delevan National Wildlife Refuge, north side of Maxwell Road, about 3 miles west of Colusa Princeton Road, about 5.5 miles east of Maxwell.
24
Comment
UCD163663
Atriplex prostrata
Craig Thomsen
1998-6-10
1961
Colusa
Bear Valley. About 7 miles north of Hwy 20.
Comment
JEPS90637
Atriplex rosea
Dean W. Taylor
1989-8-4
10422
Colusa
Colusa National Wildlife Refuge Great Central Valley (along Ohm Rd., along ditchbank)
39
Comment
UCD65636
Avena barbata
Craig D. Thomsen
2000-4-12
2148
Colusa
Bear Creek Botanical Management Area. Caltrans right-of-way, on south side of Hwy 20, ca. 0.25 mile west of Hwy 20/16 instersection, near Colusa Co. milepost 3.00.
310
Comment
SEINET10517556
Avena barbata
Roxana S. Ferris
1917-4-18
Ferris 691
Colusa
Zsni west of Arlrickle in open field.
Comment
UCD66443
Avena fatua
Craig D. Thomsen
2000-4-28
2212
Colusa
Bear Creek Botanical Management Area. Caltrans right-of-way, on south side of Hwy 20, ca. 0.25 mile west of Hwy 20/16 instersection, near Colusa Co. milepost 3.00.
310
Comment
UCR225656
Avena fatua
Craig D. Thomsen
2008-4-27
s.n.
Colusa
BLM Payne Ranch, lands to the southwest of the junction of Hwys 20 and 16. Slopes to the northwest of Eula Canyon and west northwest of Cowboy Camp on the west side of Bear Creek
452
Comment
CHSC46039
Azolla microphylla
Lowell Ahart
1975-1-25
699
Colusa
On the south side of Norman Road, about 1 mile west of Princeton.
30
Comment
UCR201551
Baccharis pilularis
George K. Helmkamp, E. A. Helmkamp
2008-10-14
14260
Colusa
Sacramento Valley, along River Road (generally following the Sacramento River), 1.1 miles north of Colusa
18
Comment
CAS-BOT-BC100066
Balsamorhiza macrolepis
James Jokerst
1985-4-5
2210
Colusa
Wilbur Springs Quad. Near Coyote Peak
456
Comment
HSC41860
Balsamorhiza macrolepis
K. Irwin
1977-4-24
299
Colusa
Along Walker Ridge Rd. above Barrel Springs Campground
701
Comment
UC1585403
Balsamorhiza macrolepis
R. Raiche
1989-5-23
90133
Colusa
w of, n of Wilber Springs, se end of Walker Ridge, Sulpher Creek Drainage Williams; Sulpher Creek Drainage
610
Comment
OBI54577
Balsamorhiza macrolepis var. macrolepis
B. Castro, B. Corbin, K Earll, L. Hanson, D. Isle, L. P. Janeway
1995-4-28
564
Colusa
Ca. 18 air mi due W of Williams, on Walker ridge just W of Walker Ridge rd., ca 0.5 mi S of jctn Bartlett Springs rd and Walker ridge Rd. (Site is a few hundred feet E of Lake co line.)
716
Comment
UCD82586
Barbarea vulgaris
Craig D. Thomsen; J. Wiegand, S. Harrison, G. Harrington, A. Fulks
2008-4-22
2731
Colusa
Walker Ridge. Eaton Springs, 4 mi N of Hwy 20, ca. 1 mi E of Walker Ridge Rd.
609
Comment
CDA396
Bassia hyssopifolia
L. Ahart
2003-8-15
10509
Colusa
On the south side oof Highway 20, about 1 mile southwest of Williams.
Comment
JEPS59784
Bassia hyssopifolia
W. L. Jepson
1929-10-1
15341
Colusa
Maxwell
25
Comment
UC1613495
Berberis aquifolium var. dictyota
Charles M. Belshaw
1937-4-25
2838
Colusa
vicinity of Cook's Spring (Inner North Coast Range, Devil's Ridge); Inner North Coast Range, Devil's Ridge
Comment
CDA11388
Berberis dictyota
G. F. Hrusa, K. van Katwyk
1995-4-22
12108
Colusa
Inner North Coast Ranges; Walker Ridge Road approximately 6 miles N of Highway 20.
Comment
SD131864
Bergia texana
Barbara Ertter, Elizabeth Neese, et al.
1989-10-21
8869
Colusa
Southeast end of East Park Reservoir north of Lodoga.
365
Comment
UCSB61646
Bergia texana
Ertter, Barbara
1989-10-21
Colusa
SE end of East Park Reservoir N of Lodoga
365
Comment
CHSC42573
Berula erecta
Vernon Oswald
1986-6-30
2171
Colusa
Fouts Spring Rd. (M10) at Candy Bucket Spring, 6.0 mi w of Rd. 306. 0.4 mi e of jct. John Smith Rd. (M5).
609
Comment
UC1532346
Berula incisa
Vernon Oswald
1986-6-30
2171
Colusa
Fouts Spring Road (M10) at Candy Bucket Spring, 6.0 miles W of Road 306, 0.4 mi E of junction John Smith Road (M5).
Comment
CAS-BOT-BC100260
Blennosperma nanum var. nanum
Roxana S. Ferris
1917-4-12
498
Colusa
4 miles East of Williams
Comment
CHSC117121
Boehmeria cylindrica
B. Castro; Tom Boullion
2009-9-29
1800 G-2
Colusa
Sacramento Valley. Ca 8 air mi SE of Colusa, via Buster Rd off Hwy 45, just W of Ogden Bend on W bank of the Sacramento River at RM 130.8.
17
Comment
CHSC117123
Boehmeria cylindrica
B. Castro; Tom Boullion
2009-8-24
1800 G-1
Colusa
Sacramento Valley. Ca 8 air mi SE of Colusa, via Buster Rd off Hwy 45, just W of Ogden Bend on W bank of the Sacramento River at RM 130.8.
17
Comment
SEINET8354595
Bolboschoenus fluviatilis
David B. Marshall
1954-7-20
Colusa
Colusa National Wildlife Refuge.
Comment
CHSC101402
Bolboschoenus glaucus
David Isle
2006-5-16
1573
Colusa
From bank of irrigation canal west of Maxwell cardlock gas station (south end of Maxwell just W of Hwy 99W). On east edge of canal at west end of Jack Barrett's 4th rice check (counting from N to S).
30
Comment
CHSC80474
Bolboschoenus glaucus
Caroline Warren; Jenny Marr, Heidi West, Natalie Wight
1998-6-11
Colusa
Vicinity of Funks Creek and Logan Ridge.
106
Comment
CHSC84931
Bolboschoenus glaucus
Lowell Ahart
2003-10-23
10672
Colusa
Along Squaw Creek, just south of East Park Reservoir, about 1/8 mile northwest of Sites Lodoga Road, about 1 mile north of Lodoga, about 21 miles west of Maxwell.
368
Comment
CHSC94729
Bolboschoenus glaucus
Lowell Ahart
2006-9-26
13351
Colusa
Along the deep ditch, south side of the Delevan National Wildlife Refuge, north side of Maxwell Road, about 3 miles west of Colusa Princeton Road, about 5 1/2 miles east of Maxwell.
24
Comment
CAS-BOT-BC28250
Bolboschoenus glaucus
V. C. Bryant
1929-8-1
s.n.
Colusa
Colusa Ricefields.
Comment
UCD18527
Bolboschoenus glaucus
June McCaskill; with Mr. Harvey and Loren Davis
1954-8-9
361
Colusa
ca. 2 mi. east of Princeton and 400 yds. south of Glenn County line.
Comment
CHSC107176
Bolboschoenus maritimus subsp. paludosus
L. P. Janeway; B. Castro
2011-5-19
10287
Colusa
Sacramento Valley. Extreme west edge of Sacramento Valley; 1.8 km southeast of Funks Reservoir and 0.2 km northeast of Tehama-Colusa Canal. In 0-6 cm of standing water where overgrown dirt roadbed passed through the marsh.
49
Comment
JEPS80460
Botrychium crenulatum
Alice Q. Howard
1972-7-10
2
Colusa
mossy spring area crossing trail from Fouts Camp to Box Springs (highest of 2 such areas on n side of ridge separating Trout and Paradise Creeks); Snow Mt.
1676
Comment
CAS-BOT-BC418408
Boykinia occidentalis
Volney Rattan
1877-6-26
s.n.
Colusa
Sulphur Creek
Comment
CAS-BOT-BC418409
Boykinia occidentalis
Volney Rattan
1877-6-26
s.n.
Colusa
Sulphur Creek
Comment
CDA16108
Brickellia californica
G. F. Hrusa, Dmitri Geltman (LE)
1999-8-18
15245
Colusa
North Coast Ranges; Along Leesville Rd.
365
Comment
CHSC94321
Brickellia californica
Lowell Ahart
2006-8-9
13110
Colusa
Gravel bar on the south side of Stony Creek, at Mine Camp, about 3 1/2 miles (air) west of Stonyford.
422
Comment
IRVC29685
Brickellia grandiflora
Mark A. Elvin, Mark S. Brunell, David Isle
2006-8-3
5033
Colusa
Snow Mtn; Summit Spring Trail; 1.4km W of Snow Mtn West summit; 800m N of Cedar Camp. Southern Northern Inner Coast Ranges
1989
Comment
JEPS80803
Brickellia grandiflora
L. R. Heckard and J. C. Hickman
1981-7-30
5773 A
Colusa
at e summit of ridge running e of (about 1.7 km. air miles from) West Peak (Snow Mt); Snow Mt.
2042
Comment
CAS-BOT-BC127866
Brickellia greenei
Mark A. Elvin; Mark S. Brunell; David Isle
2006-8-3
5034
Colusa
Southern Northern Inner Coast Ranges: Snow Mtn; Summit Spring Trail; 1.4km W of Snow Mtn West summit; 800m N of Cedar Camp.
1989
Comment
JEPS75869
Brickellia greenei
L. R. Heckard
1974-9-10
3879
Colusa
along e trail, se of saddle between peaks Circle Trail
2011
Comment
JEPS81271
Brodiaea elegans subsp. elegans
L. R. Heckard and J. C. Hickman
1982-7-5
5879
Colusa
slope below (s of) area Summit Springs (s side of Snow Mountain); s side Snow Mountain
1500
Comment
UC1051716
Brodiaea elegans subsp. elegans
Helen K. Sharsmith
1953-6-19
4268
Colusa
near confluence of North and Middle Forks of Stoney Creek; Inner North Coast Ranges, Mendocino National Forest, Red Bri
548
Comment
UCD72482
Brodiaea elegans subsp. elegans
Ellen Dean; J. Alderson, N. Voegtly, and C. Thomsen
2007-5-12
3816
Colusa
BLM Payne Ranch, lands to the SW of jct of Hwys 16 and 20. Area of ranch west of Hwy 16, near bridge that spans Bear Creek, ca. 4.5 road miles south of junction of Hwy 16/20. West side of Bear Creek, along trail that beings approximately across from BLM parking lot, located at south end of bridge.
256
Comment
JEPS110141
Bromus arenarius
Lowell Ahart
2006-8-22
13216
Colusa
South side of Stony Creek, about 100 yards west of the bridge across Stony Creek, just north of Stonyford
349
Comment
UCD57610
Bromus arenarius
Beecher Crampton
1958-5-19
4793
Colusa
10.1 miles southeast of Leesville.
Comment
HSC100292
Bromus diandrus
J. P. Smith
2011-4-27
13144
Colusa
Along Hwy. 16, 1.3 mi. S of junction with Hwy. 20
315
Comment
CHSC6680
Bromus hordeaceus
Marilyn Lee
1968-4-30
168
Colusa
North side of Hwy. 16, intersection of Hwy. 16 and Hwy. 20, between Hwy. and Cache Creek.
Comment
JEPS80197
Bromus hordeaceus
L. R. Heckard and J. Hickman
1980-7-3
5351
Colusa
10 mi w of Stonyford (just w of Summit Springs, sw of Snow Mountain)
1548
Comment
UCD57554
Bromus hordeaceus
Cindy Yip; with Plant Biology 102
2007-4-29
4
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of State Routes 20 and 16. Meadow on the west side of State Route 16, ca. 2 road miles south of intersection with State Route 20.
304
Comment
POM92520
Bromus hordeaceus
Roxana S. Ferris
1917-04
527
Colusa
4 miles east of Williams.
Comment
UCR228650
Bromus japonicus
Ellen Dean, Gordon Harrington, Craig D. Thomsen, S. Harrison
2008-5-18
4934
Colusa
Payne Ranch, owned by BLM, lands to the southwest of the intersection of Hwys 20 and 16. Unnamed drainage south of Hwy 20 between Hwy 16 and Lynch Canyon that drains to Bear Creek by passing under Hwy 20
348
Comment
UC1055952
Bromus laevipes
Helen K. Sharsmith
1953-6-19
4266
Colusa
near confluence of North and Middle forks of Stoney Creek (Red Bridge Camp, Mendocino National Forest); Inner North Coast Ranges, Mendocino National Forest, Red Bri
548
Comment
UCD163860
Bromus laevipes
Craig D. Thomsen
2001-5-31
2542
Colusa
Bear Creek Canyon south of Sulphur Creek confluence. About 3 miles north of Hwy 20.
Comment
CHSC112028
Bromus laevipes
David Isle; Doug Johnson
1988-5-11
2089
Colusa
Mendocino National Forest. Little Stony Road (Goat Mtn Rd).
426
Comment
CDA16100
Bromus madritensis subsp. rubens
G. F. Hrusa
1999-5-16
15043
Colusa
North Coast Ranges; Slopes above Fouts Springs, on serpentine, immediately below Verbena spring. Few on roadside, scattered here, dominant in a few sites. Annual.
594
Comment
CHSC100274
Bromus madritensis subsp. rubens
D. Isle
1988-4-13
1515
Colusa
Mendocino National Forest - North Coast Ranges. Middle Fork Stony Creek Watershed. Mellow-D Ranch meadow just north of 1st bad erosion channel in area burned during 1987 Fouts Fire.
731
Comment
HSC23360
Bromus madritensis subsp. rubens
J. D. Dagray
1970-4-4
3
Colusa
10 mi. W of Williams on Hwy. 20
122
Comment
SEINET3922874
Bromus madritensis subsp. rubens
Richard R. Halse
2002-3-21
6130
Colusa
Williams; by junction of 5th Street and B Street.; 0
24
Comment
UCD66445
Bromus madritensis subsp. rubens
Craig D. Thomsen
2000-4-28
2214
Colusa
Bear Creek Botanical Management Area. Caltrans right-of-way, on south side of Hwy 20, ca. 0.25 mile west of Hwy 20/16 instersection, near Colusa Co. milepost 3.00.
310
Comment
JEPS80793
Bromus orcuttianus
L. R. Heckard and J. C. Hickman
1981-7-30
5763
Colusa
se Snow Mountain, going down Trout Creek Trout Creek; Snow Mountain, Trout Creek
1569
Comment
CHSC94853
Bromus pseudolaevipes
Lowell Ahart
2006-6-11
12670
Colusa
On the east side of an off road trail (Trail 30), about 100 yards south of Fouts Road, about 5 miles (by road) west of Stonyford.
613
Comment
SEINET3923292
Bromus rubens
Christopher Knopp
1978-4-22
17
Colusa
Wilbur Springs Quad. Bear Valley Road 1.5 miles from its junction with State Route 20.; 0
411
Comment
CHSC94534
Bromus tectorum
Lowell Ahart
2006-8-22
13216
Colusa
South side of Stony Creek, about 100 yards west of the bridge across Stony Creek, just north of Stonyford.
349
Comment
UCD65639
Bromus tectorum
Craig D. Thomsen
2000-4-28
2174
Colusa
Bear Creek Botanical Management Area. Caltrans right-of-way, on south side of Hwy 20, ca. 0.25 mile west of Hwy 20/16 instersection, near Colusa Co. milepost 3.00.
310
Comment
UCD67035
Bromus tectorum
Ellen Dean; Davis Botanical Society
2008-5-31
5016
Colusa
west of I-5 at Maxwell, Goat Mountain, ridge below summit off of Goat Mountain Road.
1734
Comment
UC1563843
Cacaliopsis nardosmia
Barbara Ertter
1989-7-1
8595
Colusa
road to Goat Mt. Lookout 2.2 mi s Rt. M-10 (Bear Creek-Fouts Spring Rd) (at head of creek, ca 12 airmiles wsw of Stonyford); S Fork Stony Creek
1500
Comment
CAS-BOT-BC273299
Cacaliopsis nardosmia
Volney Rattan
1884-6-1
s.n.
Colusa
Coast Mts. North of San Francisco Bay
1524
Comment
JEPS52594
Calandrinia ciliata
Ruth Johnson
1915-4-6
Colusa
College City
Comment
UCD163689
Calandrinia ciliata
Craig Thomsen
1999-4-15
1991
Colusa
Bear Valley. About 5 miles north of Hwy 20, west of Bear Valley Rd.
Comment
UCD64251
Calandrinia ciliata
Craig D. Thomsen
2000-3-31
2053
Colusa
Bear Creek Botanical Management Area. On Caltrans right-of-way, south side of Hwy 20, 0.25 mile west of Hwy 20/16 instersection, Colusa Co. milepost 3.00.
310
Comment
HSC72115
Calandrinia ciliata
J. P. Smith, Jane P. Nelson, Thomas W. Nelson
1978-4-2
9530
Colusa
Bear Valley Rd., 5 mi. from its junction with Hwy. 20
390
Comment
UCD100193
Calandrinia ciliata
Mark Hershkovitz
1991-5-3
s.n.
Colusa
Walker Ridge, along Walker Ridge Rd. nr. Turn-off to Bear Valley on north end; serpentine site.
Comment
UCD82342
Calandrinia ciliata
Robin McMaster
1973-4-15
332
Colusa
middle of Bear Valley.
Comment
CHSC86517
California macrophylla
B. Castro; Beth Hendrickson
2003-3-24
1398
Colusa
Vicinity of Sites, hills N of the Sites-Lodoga Rd, and Stone Corral Creek. On and along dirt road.
289
Comment
UCD57052
California macrophylla
Gordon Harrington; Diana Hickson
2007-4-7
0011
Colusa
BLM Payne Ranch, SW of intersection of Hwy 16 and Hwy 20, 3/4 mile west of Roadkill Cafe.
Comment
NY465060
Callitriche marginata
A. A. Heller
1902-5-2
5440
Colusa
Princeton
Comment
UC1101520
Callitriche marginata
S. Galen Smith and G. T. Robbins
1950-4-15
1906
Colusa
Bear Valley
Comment
JEPS80389
Calocedrus decurrens
L. R. Heckard and J. Hickman
1981-6-22
5622
Colusa
at edge Veratrum meadow; Snow Mt., Dark Hollow Creek, Big Meadow, Veratrum meadow
1889
Comment
UCD139472
Calochortus amabilis
K. Esau
1934-5-6
s.n.
Colusa
West of Williams, Ukiah-Tahoe Highway.
Comment
CAS-BOT-BC492123
Calochortus amabilis
A. A. Heller
1940-5-6
15577
Colusa
2 miles west of Junction with Highway #16, on State Highway #20
Comment
CHSC85971
Calochortus luteus
Jenny Marr; Heidi West, Joyce Lacey-Rickert, Caroline Warren
1998-5-8
Colusa
Vicinity of Sites and Antelope Valley.
152
Comment
UC1733772
Calochortus luteus
Kay H. Beach
1940-5-16
659
Colusa
Colusa and Lake county line
Comment
UCD82117
Calochortus luteus
Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth
2009-5-20
5645
Colusa
Walker Ridge. Along Walker Ridge Road, ca. 0.5 road mi N of intersection with road to Indian Valley Reservoir. Parking area, undeveloped roads, flats and slopes on W side of road.
839
Comment
JEPS120967
Calochortus splendens
Lowell Ahart
2013-5-1
18683
Colusa
On the N of the wash and N side of Hwy 20, just E of the Lake County Line, 12.2 air miles ENE of the town of Clear Lake, 17.1 air miles W of Williams.
Comment
UC1562881
Calochortus splendens
Barbara Ertter
1989-7-1
8600
Colusa
ca 12 air mi wsw Stonyford (road to Goat Mt Lookout, 2.2 mi s of Rt M-10 (Bear Creek-Fouts Spring Rd), at head of South Fork Stony Creek, s.w. side of ridge); South Fork Stony Creek
1500
Comment
UC616859
Calochortus splendens
L. Constance
1939-5-14
2491
Colusa
2.5 mi e Bonnie View (above Middle Fork of Stony Creek, e base of Snow Mountain); Inner North Coast Ranges, Snow Mountain
518
Comment
UCD139570
Calochortus splendens
K. Esau
1934-5-6
s.n.
Colusa
West of Williams, Ukiah-Tahoe Highway.
Comment
UC1051690
Calochortus tolmiei
Helen K. Sharsmith
1953-6-19
4289
Colusa
Old Mill Campground, Trough Springs Ridge Inner North Coast Ranges, Mendocino National Forest
1219
Comment
CHSC82628
Calochortus uniflorus
Tara Morgan
2002-4-1
18
Colusa
Found in Bear Valley located west of Highway 5 and north of Highway 20 within pastures.
385
Comment
HSC45509
Calochortus uniflorus
M. Alcasas
1978-4-23
59
Colusa
Bear Valley Rd., 4.7 mi. from Bartlett Springs Rd.
457
Comment
RSA377474
Calochortus uniflorus
M. Dalke
1979-4-14
48
Colusa
Bear Valley Road, 13 miles north of Hwy 20; Wilbur Springs Quad.
396
Comment
UCD139597
Calochortus uniflorus
Clinton C. Shock
1980-5-3
59
Colusa
Bear Valley, about 12 miles northwest of State Highway 20.
384
Comment
UCD82499
Calochortus uniflorus
Craig Thomsen; G. Harrington
2009-5-12
2858
Colusa
Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd.
707
Comment
HSC65993
Calochortus vestae
D. Boyd, M. Eichelberger, Tim Messick, Tom Ranker
1980-4-20
46
Colusa
Leesville Rd. from Leesville to Williams, 3.8 mi. E of Leesville.
Comment
CAS-BOT-BC270757
Calycadenia pauciflora
Volney Rattan
1884-6-1
s.n.
Colusa
Stony Creek
Comment
HSC94037
Calycadenia pauciflora
G. Fred Hrusa
1998-6-19
14595
Colusa
Along Little Stony Creek, on Goat Mtn. Rd., ~0.5 km W of intersection with Lodoga-Stonyford Rd.
400
Comment
UCR44924
Calycadenia pauciflora
L. F. LaPre
1986-5-30
s.n.
Colusa
Stony Creek Road, Mendocino Natl Forest
474
Comment
CAS-BOT-BC270744
Calycadenia pauciflora
Gerald D. Carr
1972-7-29
722
Colusa
1.8 miles E of Walker Ridge Road on Deadshot Road, Deadshot Flat
731
Comment
CAS-BOT-BC270746
Calycadenia pauciflora
Gerald D. Carr
1972-7-29
720
Colusa
0.3 mile E of Lake County line on Bartlett Springs Road
Comment
CAS-BOT-BC270755
Calycadenia pauciflora
Alice Eastwood
1919-6-8
13230
Colusa
Near Ladoga
Comment
UC1876242
Calycadenia pauciflora
Gerald D. Carr
1972-8-2
723
Colusa
0.6 mi W of Leesville-Lodoga Rd. on road to Cooks Springs.
Comment
UC1876243
Calycadenia pauciflora
Gerald D. Carr
1972-7-29
720
Colusa
0.3 mi E of Lake Co. line on Bartlett Springs Rd.
Comment
UC1876262
Calycadenia pauciflora
Gerald D. Carr
1971-7-23
605
Colusa
1.7 mi W of Lodoga on road to Stoneyford.
411
Comment
UC1971757
Calycadenia pauciflora
R. L. Carr
1997-7-18
3352
Colusa
E of Clearlake Oaks, 1.8 mi E of Lake/Colusa Co. line on Hwy 20
Comment
UCD129870
Calycadenia pauciflora
R. L. Carr
1978-8-20
2155
Colusa
Brim Road (to Bartlett Spring), 1.5 miles west of junction with Bear Valley Road, around 3.6 miles southwest of Leesville.
482
Comment
UCD129891
Calycadenia pauciflora
Gerald D. Carr
1971-9-14
651
Colusa
2.0 miles southwest o Leesville on road to Bartlett Springs.
Comment
UCD129895
Calycadenia pauciflora
Gerald D. Carr
1971-9-15
658
Colusa
6.0 miles north of Yolo County line Hwy 16.
Comment
UCD68099
Calyptridium monospermum
Kathleen A. Robson
1981-5-23
37
Colusa
From Stonyford, take Fouts Spring Road 12 miles West, past Fouts Springs to Letts Lake, Mendocino National Forest.
1219
Comment
IRVC29689
Calyptridium umbellatum
Mark A. Elvin, Mark S. Brunell, David Isle
2006-8-3
5029
Colusa
Snow Mtn; Summit Spring Trail; 1.4km W of Snow Mtn West summit; 800m N of Cedar Camp. Southern Northern Inner Coast Ranges
1989
Comment
CHSC70485
Calystegia collina
R. A. Schlising; T. Spira
1978-5-13
3233
Colusa
Just E of Lake County line, along Hwy 20.
Comment
CDA39872
Calystegia collina
T. C. Fuller
1958-5-27
3670
Colusa
South of Highway 20, 1 mile west of junction with Highway 16.
0
Comment
UCD57719
Calystegia collina subsp. collina
Jordan Thompson; with Plant Biology 102
2007-4-29
2
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of State Routes 20 and 16. Central/Eastern part of ranch. Craig Canyon. North side of Craig Creek on south side of unimproved road.
335
Comment Read comments Feb 20 2009
UCD66710
Calystegia collina subsp. oxyphylla
Craig D. Thomsen
2001-5-24
2533
Colusa
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.
325
Comment
UCD81718
Calystegia occidentalis subsp. occidentalis
Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia
2009-5-27
5723
Colusa
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 20. W side of road.
833
Comment
JEPS94220
Camissoniopsis hirtella
Vernon Oswald and Lowell Ahart
1998-5-7
9004
Colusa
Bartlett Springs Road 2.1 mi w of Bear Valley Road (0.8 mi e of Sawtelle Valley and Grapevine Flat Roads); Bartlett Springs Road
524
Comment
UCD37191
Camissoniopsis hirtella
Beecher Crampton
1958-5-19
4807
Colusa
4-8 miles south of Lodoga, Little Stony Creek Canyon.
Comment
JEPS120912
Campanula angustiflora
Lowell Ahart, John Dittes, Josephine Guardino
2013-4-26
18653
Colusa
Rocky serpentine outcrop on the N side of Hwy 20, just E of the Lake County line, 12.2 air miles ENE of the town of Clear Lake, 17.1 air miles W of Williams
Comment
UCD165932
Campanula griffinii
Ellen Dean; with Tom Starbuck
2016-4-24
8843
Colusa
BLM Bear Creek Ranch (formerly Payne Ranch). Lands to the southwest of the intersection of Highway 16 and Highway 20. On north-facing slope of knoll that is just south of corral area (corral at junction of Highways 16 and 20).
393
Comment
UCD66822
Campanula griffinii
D. Sanchez-Mata
1998-7-9
s.n.
Colusa
Bear Valley, Destanella Flat-Walker Ridge.
450
Comment
JEPS80789
Campanula prenanthoides
L. R. Heckard and J. C. Hickman
1981-7-30
5762
Colusa
se side Snow Mt.; Trout Creek
1569
Comment
CAS-BOT-BC37027
Capsella bursa-pastoris
Roxana S. Ferris
1917-4-12
519
Colusa
4 miles east of Williams. Alkali Plains.
Comment
UCD56906
Capsella bursa-pastoris
Ellen Dean; Gordon Harrington and Kate Mawdsley
2007-3-30
3509
Colusa
BLM Payne Ranch. In Craig Canyon. Southwest of intersection of Hwy. 16 and Hwy. 20.
326
Comment
UCD64045
Capsella bursa-pastoris
Craig D. Thomsen
2000-3-8
2037
Colusa
Bear Creek Botanical Management Area. On Caltrans right-of-way, south side of Hwy 20, 0.25 mile west of Hwy 20/16 instersection, Colusa Co. milepost 3.00.
310
Comment
CAS-BOT-BC37028
Capsella bursa-pastoris
Jeanne McFarland; Kathie Meyer; Anne Mullenniex
1995-4-9
32
Colusa
At intersection of Rim Road with Bear Valley Road.
350
Comment
CHSC87152
Cardamine oligosperma
Jenny Marr; Beth Hendrickson, Jean Witzman, Natalie Wight
1999-2-25
Colusa
Vicinity of Antelope Valley, Antelope Creek, and Sites.
152
Comment
UCD64043
Cardamine oligosperma
Craig D. Thomsen
2000-3-8
2033
Colusa
Bear Creek Botanical Management Area. On Caltrans right-of-way, south side of Hwy 20, 0.25 mile west of Hwy 20/16 instersection, Colusa Co. milepost 3.00.
310
Comment
RSA0116218
Cardaria chalepensis
David W. Isle
2007-4-13
1633
Colusa
About 1 mile east of Maxwell; south of Maxwell Road and east of Lyons Road in ditch between rice fields east of William Dirk s shop.
30
Comment
CHSC107961
Carduus pycnocephalus
B. Castro; Robin Carter, Jessica Boyt
2011-4-25
1848
Colusa
Sacramento Valley. Extreme W edge of Sacramento Valley; 5 air mi NW of Maxwell, 0.6 mi southeast of Funks Reservoir and 130 ft east of Tehama-Colusa Canal. Ca 0.3 mi NW of large +- saline/alkaline wetland/marsh, next to large transmission-line towers.
54
Comment
CHSC79446
Carduus pycnocephalus
B. Castro
2000-5-2
1112
Colusa
Vicinity of Sites, Sites-Lodoga Rd, and Grapevine Creek.
231
Comment
UCD57706
Carduus pycnocephalus
Daniel Chau; with Plant Biology 102
2007-4-29
2
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of State Routes 20 and 16. Eastern part of ranch, ca. 2 road miles south of intersection of State Routes 20 and 16. Along unimproved road in the mouth of Craig Canyon.
313
Comment
UCD159527
Carduus pycnocephalus subsp. pycnocephalus
D. S. Park
2011-4-6
276
Colusa
Off Rt. CA-20. Roadside. Disturbed.
Comment
JEPS80864
Carex bolanderi
L. R. Heckard and J. C. Hickman
1981-7-30
5754
Colusa
Trout creek, SE side of Snow Mountain
1615
Comment
CDA15482
Carex feta
G. F. Hrusa, T. D. Wilfred
1998-6-19
14619
Colusa
North Coast Ranges; Wet area on spring in +- shaded understory of Pinus ponderosa, Abies concolor forest along Goat Mtn. Rd. below intersection with USFS Pacific Ridge Rd. (M5). Short-rhizomatous perennial.
Comment
RSA523879
Carex fracta
Barbara Ertter
1989-7-1
8610
Colusa
Road to Goat Mountain Lookout 1.7 miles S of Rt. M-10 (Bear Creek-Fouts Spring Road) at head of S Fork Stony Creek, ca. 12 airmiles WSW of Stonyford.
1463
Comment
CAS-BOT-BC21226
Carex fracta
Alice Q. Howard
1972-7-10
7
Colusa
Snow Mountain.
1676
Comment
SEINET7563262
Carex klamathensis
Unknown
1999-7-5
6497
Colusa
At Bear Wallow Spring, on north side of Lovelady Ridge about 0.5 mi northeast of Pacific Point. Hough Springs quad.
1045
Comment
JEPS83819
Carex lenticularis var. impressa
L. R. Heckard and J. Hickman
1980-9-16
5461
Colusa
cirque area between peaks, ne slope of West Peak, Snow Mt. West Peak; Snow Mt., West Peak
2011
Comment
CAS-BOT-BC31581
Carex luzulina var. luzulina
L. R. Heckard
1972-7-10
3113
Colusa
Trout Creek crossing of trail to Box Spring, Snow Mt.
1828
Comment
JEPS80878
Carex luzulina var. luzulina
L. R. Heckard and R. Bacigalupi
1976-9-6
4442
Colusa
northeast side of Fouts Camp promonotory, Snow Mt.
1859
Comment
JEPS80861
Carex pachystachya
L. R. Heckard and J. C. Hickman
1981-7-30
5741
Colusa
along Trout Creek trail, se side of Snow Mt. Snow Mt., Trout Creek trail
1676
Comment
UCD163204
Carex praegracilis
Craig D. Thomsen
2000-3-31
2069
Colusa
Bear Creek Botanical Management Area. CalTrans right-of-way along Hwy 20 (south side), about 0.3 mile west of Hwy 20/16 intersection.
345
Comment
UCD82623
Carex praegracilis
Craig Thomsen; G. Harrington
2009-5-12
2893
Colusa
Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd.
707
Comment
UCD82442
Carex serratodens
Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth
2009-5-20
5666
Colusa
Walker Ridge. Along Walker Ridge Road, ca. 0.5 road mi N of intersection with road to Indian Valley Reservoir. Parking area, undeveloped roads, flats and slopes on W side of road.
869
Comment
UCD82727
Carex serratodens
Craig Thomsen; G. Harrington
2009-5-14
2910
Colusa
Colusa County on Walker Ridge: about 200 yds. south of spur road, 1/2 mile east of Walker Ridge Road, en route to Eaton Springs.
813
Comment
HSC36255
Carex serratodens
Steven Lagos
1974-5-4
48
Colusa
915
Comment
JEPS80865
Carex subfusca
L. R. Heckard and J. C. Hickman
1981-7-30
5771
Colusa
along Trout Creek, se side of Snow Mt. Snow Mt., Trout Creek
1600
Comment
JEPS83817
Carex subfusca
L. R. Heckard
1972-7-8
3040 a
Colusa
on n side of ridge running se West Peak; Snow Mt.
2011
Comment
CAS-BOT-BC116775
Carex subfusca
Peter H. Raven; R. Snow
1959-9-11
14422
Colusa
Along stream in wet soil, Bonnie View.
914
Comment
HSC45686
Castilleja applegatei
Patricia Shesgreen
1978-4-22
38
Colusa
Bear Valley Rd., 1.5 mi. from its junction with Hwy. 20
412
Comment
CDA12181
Castilleja applegatei subsp. martinii
G. F. Hrusa
1993-5-2
10863
Colusa
Frenzel Creek Research Natural Area; Point of ridge above mouth of Frenzel Creek, tributary of Little Stony Creek. S. side of creek.
Comment
HSC72113
Castilleja applegatei subsp. martinii
J. P. Smith, Jane P. Nelson, Thomas W. Nelson
1978-4-2
9557
Colusa
Bear Valley Rd., 2.1 mi. from its junction with Hwy. 20
366
Comment
UCD97120
Castilleja applegatei subsp. martinii
Ellen Dean; G. Harrington, J. Alderson
2011-4-10
6903
Colusa
Along Brim Rd on east slope of Walker Ridge (Brim Rd becomes Bartlett Springs Rd).
438
Comment
UCR37517
Castilleja applegatei var. applegatei
C. G. Phillips, K. B. Barrows, L. Cole, S. A. Haultain
1984-4-29
Colusa
Bear Valley Road, 2 mi north of Hwy. 20
366
Comment
CAS-BOT-BC257276
Castilleja attenuata
George K. Helmkamp; E. A. Helmkamp
2011-4-1
17122
Colusa
Eastern Foothills North Coast Ranges: Antelope Valley, along Maxwell-Sites Road, 1.8 miles southeast of Sites
77
Comment
CHSC107964
Castilleja attenuata
B. Castro; T. Boullion
2011-4-20
1841
Colusa
Sacramento Valley. Extreme W edge of Sacramento Valley; ca 5 air mi NW of Maxwell, 0.8 mi SE of Funks Reservoir and 1000 ft northeast of Tehama-Colusa Canal. Off north end of vernally moist swale which extends northeast of large +- saline/alkaline wetland/marsh, in grassy uplands.
49
Comment
CHSC86031
Castilleja attenuata
Jenny Marr; H. West, J. Lacey, C. Warren, N. Wight
1998-4-14
Colusa
Vicinity of Grapevine Creek, Antelope Valley, and Sites-Lodoga Road.
121
Comment
JEPS124209
Castilleja attenuata
Lowell Ahart
2015-4-10
20005
Colusa
About 1/2 mile east of Leesville, about 12 miles (air) northwest of Williams.
Comment
RSA0011988
Castilleja attenuata
George K. Helmkamp, E. A. Helmkamp
2011-4-1
17122
Colusa
Antelope Valley, along Maxwell-Sites Road, 1.8 miles southeast of Sites
77
Comment
SD239905
Castilleja attenuata
George K. Helmkamp, E. A. Helmkamp
2011-4-1
17122
Colusa
Eastern Foothills North Coast Ranges: Antelope Valley, along Maxwell-Sites Road, 1.8 miles southeast of Sites (Sites 7.5'Q)
77
Comment
UC719289
Castilleja attenuata
F. G. Meyer
1938-4-5
1348
Colusa
about 20 mi n Williams
Comment
CHSC27511
Castilleja exserta
Michael F. Henetz
1978-4-15
8
Colusa
Ca. 150 m s of Hwy. 20, ca. .5 km w of junction of Hwy. 20 and Hwy. 16, ca. 29 km s of Williams. S central border of Section 36.
332
Comment
CHSC60153
Castilleja exserta
Bryan Case
1988-4-9
129
Colusa
Ca. 0.3 mi w of jct of hwys 20 and 16, s side of Bear Creek, ca 18 mi se of Williams.
321
Comment
CHSC115373
Castilleja exserta subsp. exserta
Lowell Ahart
2015-4-10
20026
Colusa
Normal size plants, on dry grassy soil.
407
Comment
JEPS10302
Castilleja exserta subsp. exserta
W. L. Jepson
1932-5-7
16255
Colusa
1 mi above Venado (sw Colusa County)
274
Comment
JEPS10303
Castilleja exserta subsp. exserta
W. L. Jepson
1932-5-8
16282
Colusa
Stonyford
365
Comment
JEPS124238
Castilleja exserta subsp. exserta
Lowell Ahart
2015-4-1
20000
Colusa
Inner North Coast Range. About 50 yards west of Bear Creek, about 6 miles south of Leesville, about 6 miles north of Highway 20.
Comment
JEPS124296
Castilleja exserta subsp. exserta
Lowell Ahart
2015-4-10
20026
Colusa
About 4 mile south of Lodoga.
Comment
UCR47925
Castilleja exserta subsp. exserta
Eugene Tanimoto
1975-4-20
13
Colusa
Bear Valley Road, 8.7 mi north of State Hwy 20
Comment
HSC65935
Castilleja exserta subsp. exserta
C. Macdonald, P. Powers, C. Raley, J. Spitler, D. Stamp
1980-4-19
45
Colusa
Along Bartlett Springs Rd., .6 mi. from Jct. with Hwy. 16
Comment
CHSC112412
Castilleja foliolosa
Lowell Ahart; John Dittes, Josephine Guardino
2013-4-26
18642
Colusa
Rocky serpentine outcrop on the north side of State Highway 20, just east of Lake County Line, 12.2 mile (air) east-northeast of Clear Lake (town), 17.1 miles west of Williams.
566
Comment
CHSC114943
Castilleja foliolosa
Lowell Ahart
2015-4-10
20014
Colusa
On the northside of Brim Road, about 2 miles west of the intersection of Bear Valley Road and Brim Road, about 17 miles (air) west of Williams. Chaparral.
500
Comment
CHSC115391
Castilleja foliolosa
Lowell Ahart
2015-4-1
19988
Colusa
Along small drainage, burned over in 2012, rocky serpentine outcrop on the north side of State Highway 20, 1/2 mile east of Lake County Line, 12 miles (air) east-northeast of Clear Lake (town), 17 miles (air) west of Williams. Inner Coast Range.
520
Comment
CHSC48974
Castilleja foliolosa
Vernon Oswald
1983-3-28
224
Colusa
About 19.3 mi s 7 e of Stonyford on the Sites-Lodoga Rd.
457
Comment
JEPS124244
Castilleja foliolosa
Lowell Ahart
2015-4-10
20014
Colusa
About 2 miles west of the intersection of Bear Valley Road and Brim Road, about 17 miles (air) west of Williams.
Comment
JEPS124251
Castilleja foliolosa
Lowell Ahart
2015-4-1
19988
Colusa
Inner North Coast Range. 1/2 mile east of Lake County Line, 12 miles (air) east-northeast of Clear Lake (town), 17 miles (air) west of Williams.
Comment
RSA783308
Castilleja foliolosa
R. R. Halse
2011-3-25
8160
Colusa
Along State Hwy 20 just E of the Lake County Line. ca. 14.6 miles E of its junction with State Hwy 53.
558
Comment
HSC97657
Castilleja foliolosa
Danny Pineda
2001-4-21
7
Colusa
Found at Walker Ridge area
671
Comment
JEPS82554
Castilleja miniata
L. R. Heckard
1983-7-27
6101
Colusa
ca 2 mi w Stonyford road; Little Stony Creek
411
Comment
CDA11256
Castilleja miniata subsp. miniata
G. F. Hrusa
1994-11-7
11991
Colusa
North Coast Biodiversity Arena; Frenzel Creek Research Natural Area, USFS. on banks of Frenzel Creek, a tributary of Little Stony Creek, approx. 2 miles above Stonyford-Lodoga Rd. on Goat Mtn. Rd.
Comment
CHSC111212
Castilleja miniata subsp. miniata
David Isle
2013-8-23
2049
Colusa
Stony Creek Watershed. W bank Salt Ck, ~ 150'NE of Dennis Dr Bridge on Isle Property.
374
Comment
JEPS93868
Castilleja minor subsp. spiralis
Vernon H. Oswald and Lowell Ahart
1998-7-15
9271
Colusa
Bartlett Springs Road 1.6 mi w of Bear Valley Road; Bartlett Springs Road
487
Comment
UC198199
Castilleja minor subsp. spiralis
Katharine Brandegee
1910-8-10
Colusa
Epperson's Grade; sw Colusa Co.
Comment
UCD169353
Castilleja rubicundula
Lowell Ahart
2013-5-1
18687
Colusa
North of the wash and State Highway 20, just east of Lake County Line, 12.2 miles (air) east-northeast of Clear Lake (town), 17.1 miles (air) west of Williams.
566
Comment
UCD166311
Castilleja rubicundula subsp. lithospermoides
Jack Major
1962-4-28
808
Colusa
At entrance to Bear Valley. (Exact location unknown. Coordinates estimated by label maker.)
381
Comment
UCD123056
Castilleja rubicundula subsp. lithospermoides
Barrie Stanford
1966-4-16
27
Colusa
Bear Valley, 5 miles north of Wilbur Springs.
Comment
UC1282150
Castilleja rubicundula subsp. rubicundula
Annetta Carter and Louise Kellogg
1953-6-20
3239
Colusa
6 mi n Wilbur Springs Junction (road to Leesville); Inner North Coast Ranges
400
Comment
UC1745694
Castilleja rubicundula subsp. rubicundula
Annetta M. Carter, Sarah Dyal, Ethel Crum
1938-5-8
1389
Colusa
S end of lake 0.4 mi. N of Lodoga.
Comment
UC584134
Castilleja rubicundula subsp. rubicundula
J. Clausen
1935-5-20
1018
Colusa
ca 27 mi w Williams (past the Wilbur Springs road, along Bear Creek); Bear Creek
Comment
UC903276
Castilleja rubicundula subsp. rubicundula
Ethel Crum
1932-5-7
1458
Colusa
Lodoga
Comment
UCD163871
Castilleja rubicundula subsp. rubicundula
Craig D. Thomsen
2000-3-31
2132
Colusa
Bear Creek Botanical Management Area. Caltrans right-of-way on south side of Hwy 20, about 0.5 mile west of Hwy 20/16 instersection.
Comment
UCD63036
Castilleja rubicundula subsp. rubicundula
Ellen Dean; Marjorie Phan and Gerald Dickinson
2008-4-27
4882
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwys 20 and 16. Across Bear Creek from Cowboy Camp.
318
Comment
UCD82578
Castilleja rubicundula subsp. rubicundula
Craig Thomsen
2008-6-12
2768
Colusa
Bear Creek (formerly Payne) Ranch. South side of Hwy 20, ca. 0.25 mi W of Hwy 16. West and SW of the corral that is located at the junction of Hwy 16 and 20.
Comment
SEINET10539694
Caulanthus
Katherine L. Morris
1973-6-6
Morris 385
Colusa
Chaparral woodland and sparse oaks; on hwy 20, 0.3 mi e of lake county line.
Comment
UCD114215
Caulanthus flavescens
J. M. Tucker
1958-3-7
3364
Colusa
State Highway 16, Cache Creek Canyon, 0.1 mile north of Yolo-Colusa County line.
Comment
UCD170130
Caulanthus lasiophyllus
Jack Alderson
2016-5-1
s.n.
Colusa
BLM Bear Creek Ranch (formerly Payne Ranch); 2400 feet (730 m) west of the confluence of Brophy Creek with Bear Creek.
341
Comment
CAS-BOT-BC48829
Ceanothus cuneatus
Roxana S. Ferris
1926-4-23
6580
Colusa
Stonyford
Comment
RSA399079
Ceanothus cuneatus
Carolyn Sanford
1977-4-24
352
Colusa
Above Barrel Springs Campground.
701
Comment
HSC47467
Ceanothus integerrimus
J. P. Smith, J. O. Sawyer
1978-4-29
9769
Colusa
Walker Ridge Rd. 3.4 mi. from its jct. with Hwy. 20
Comment
UCD170260
Ceanothus integerrimus
D. O. Burge
2016-11-3
2185
Colusa
Fouts Springs area, roadside on Forest Road M10, E of Fouts Springs.
630
Comment
CAS-BOT-BC83779
Ceanothus jepsonii
D. O. Burge; V. Church
2007-12-28
972 b
Colusa
Mendocino National Forest, roadside on Goat Mountain Road
430
Comment
HSC90407
Ceanothus jepsonii
R. Cook, M. Lewis, L. Sims
1992-4-11
7
Colusa
1.0 mi S of Blue Oak Recreation Site on Walker Ridge Rd.
685
Comment
UCD110813
Ceanothus jepsonii
Christopher Mallek
2008-1
PR1- 2
Colusa
Pacific Ridge. Border of Colusa and Lake Counties.
1101
Comment
CHSC105194
Ceanothus jepsonii var. albiflorus
B. Castro; L. P. Janeway
1999-7-5
1016 A
Colusa
Ca 11 air mi SSW of Stonyford, 5 mi NW of Indian Valley Reservoir, just N of Colusa/Lake Co line, near Bear Wallow Spring. In serpentine substrate on NNW-facing slope W of Lovelady Ridge rd ca 0.5 mi N of its jcn with USFS Rd 16N06, 0.6 mi NE of Pacific Point.
1051
Comment
HSC43201
Ceanothus jepsonii var. albiflorus
J. Walker
1977-4-24
27
Colusa
Along Walker Ridge Rd. above Barrel Springs Campground
701
Comment
HSC96785
Ceanothus jepsonii var. albiflorus
J. Carey, A. Hong, J. Leffingwell
1995-5-6
75
Colusa
3.2 mi N on Walker Ridge Rd. from its junction with Indian Valley Access Rd.
854
Comment
UCD72391
Ceanothus oliganthus var. sorediatus
Ellen Dean; G. Harrington, J. Alderson, E. Bayon, R. Willmarth
2008-6-8
5117
Colusa
BLM Payne Ranch, lands to the SW of jct of Hwys 16 and 20. Southwestern edge of ranch above Cache Creek Canyon along ridge trail.
548
Comment
UCD81261
Ceanothus oliganthus var. sorediatus
Ellen Dean; G. Harrington, R. Willmarth, B. Rice, and C. Thomson
2009-4-8
5426
Colusa
BLM Bear Creek (Payne) Ranch. Lands to the SW of the intersection of Hwys. 16 and 20. Just north of the road leading up from the confluence of Bear and Cache Creeks.
323
Comment
UCD66479
Centaurea calcitrapa
Craig D. Thomsen
2001-5-6
2556
Colusa
Bear Creek Botanical Management Area. Caltrans right-of-way, on north side of Hwy 20, ca. 0.25 mile west of Hwy 20/16 instersection, near Colusa Co. milepost 2.80.
310
Comment
CHSC94524
Centaurea melitensis
Lowell Ahart
2006-8-9
13169
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
347
Comment
CHSC94445
Centaurea solstitialis
Lowell Ahart
2006-8-9
13148
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
347
Comment
IRVC29846
Centaurea solstitialis
Mark A. Elvin, David Isle, Mark S. Brunell
2006-8-3
4993
Colusa
Mendocino Nat. Forest; E face of Snow Mtn., Stony Creek along M10. Southern Northern Inner Coast Ranges
610
Comment
SEINET251844
Centaurea solstitialis
L. Shultz, J. Shultz
1986-9-20
10225
Colusa
Ca. 10 miles west of Colusa on Highway 20
Comment
CDA39705
Centaurium trichanthum
Larry Norris
1975-7-2
s.n.
Colusa
Bear Valley.
0
Comment
JEPS68349
Centromadia fitchii
L. R. Heckard with R. Bacigalupi and B. Doren
1971-9-9
2789
Colusa
on Ladoga rd about 3 mi s Stonyford
335
Comment
UCD55450
Centromadia fitchii
Ellen Dean; Gordon Harrington
2006-10-6
3275
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of State Routes 20 and 16. Ranch can be accessed via north gate which is located on a road on the S side of State Route 20, 2.3 road miles W of jct of State Routes 16 and 20. In Thompson Canyon, along dirt road that parallels ephemeral drainage.
374
Comment
CAS-BOT-BC272813
Centromadia parryi subsp. parryi
H. M. Hall
1930-10-3
12938
Colusa
Southwestern Colusa County. North of Wilbur Springs on road to Stonyford
Comment
UCD61446
Centromadia parryi subsp. parryi
Ellen Dean; G. Harrington, N. Voegtly, J. Alderson, C. Thomsen
2007-6-24
3891
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwy 16 and Hwy 20. West of BLM equestrian parking lot (Cowboy Camp) on west side of Bear Creek. Approximately 1000 ft NW of parking lot.
339
Comment
CAS-BOT-BC271546
Centromadia parryi subsp. rudis
A. A. Heller
1941-9-22
16331
Colusa
Along U.S. Highway #99W between Williams and Maxwell
Comment
CHSC108063
Centromadia parryi subsp. rudis
B. Castro; Dave Boegner
2011-9-1
1912
Colusa
Sacramento Valley. Larkins Childrens Rancho. 10 air mi NW of Colusa, 3 mi W of the Sacramento River and 800 ft N of the northern boundary of Delevan NWR. Near where Hunters and Logan Creeks empty into the Colusa Basin Drain. Uncommon along outer western edge of managed +- saline wetland of Gunnersfeld Ranch duck hunting club. Locally common in vicinity along berms and other disturbed areas between rice fields and the NWR.
17
Comment
JEPS104140
Centromadia parryi subsp. rudis
Lowell Ahart
2003-8-15
10510
Colusa
On the south side of Highway 20, ca 1 mi sw of Williams.
27
Comment
CHSC89831
Centromadia pungens subsp. maritima
B. Castro; S. Innecken
2001-3-20
1217
Colusa
Vicinity of Maxwell, Golden Gate in Logan Ridge, Funks Reservoir, and the Glenn-Colusa canal.
39
Comment
JEPS105679
Centromadia pungens subsp. pungens
L. P. Janeway
2002-4-25
7525
Colusa
Sacramento Valley; vicinity of Funks Creek and Tehama - Colusa Canal
51
Comment
CAS-BOT-BC222990
Cephalanthus occidentalis
Roxana Stinchfield
1916-7-8
399
Colusa
Sycamore Slough, Stinchfield ranch
Comment
SEINET8730526
Cephalanthus occidentalis
Unknown
1946-1
7839
Colusa
Butte Creek, 1 mile north of Butte Outing Gun Club, near Colusa, Colusa County.
6
Comment
UCD137756
Ceratophyllum demersum
J. S. Jones
1926-7-16
s.n.
Colusa
Colusa.
Comment
HSC31623
Cercis occidentalis
Glenn McGourty
1974-4-20
7
Colusa
Roadcut of Hwy. 16, 17 mi. E of Esparto
Comment Read comments Aug 13 2014
SFV8462
Cercis occidentalis
R. D. Deragisch
1969-4-20
12
Colusa
Near Bear Creek Bridge on CA State Highway 16, about 2 miles north of Colusa-Yolo County line.
152
Comment
UCD83634
Cercocarpus betuloides
Fanny Ye; with PLB 102 class
2010-5-2
5
Colusa
East slope of Walker Ridge. Along Brim Road, between Bear Valley and Walker Ridge.
493
Comment
HSC71298
Cercocarpus montanus var. glaber
Thomas W. Nelson, Jane P. Nelson
1979-4-12
4628
Colusa
Along Stony Creek below Digger Pine Campground
Comment
CHSC48135
Chaenactis douglasii var. douglasii
Vernon Oswald
1984-7-20
1620
Colusa
Letts Lake in Mendocino National Forest on top of the dam.
1402
Comment
UC727669
Chamaesyce nutans
Milo S. Baker
1946-9-4
11606
Colusa
near locked gate Colusa Gun Club (Butte Sink); Butte Sink
Comment
SBBG28478
Chamaesyce serpillifolia subsp. serpillifolia
Mrs. H. P. Bracelin
1931-10-1
565
Colusa
Indian Crk, Lodoga
Comment
CDA1337
Chenopodium album
L. Ahart
2004-10-4
11430
Colusa
East side of Leesville Road, about 4.7 miles by road southeast of the intersection of Bear Valley Road, Leesville Ladoga Road and Leesville Road, northeast of Bear Valley.
Comment
CHSC77561
Chenopodium album
Heidi West; Jenny Marr, Caroline Warren, Natalie Wight
1998-6-11
Colusa
Vicinity of Salt Lake and Sites.
97
Comment
CHSC94513
Chenopodium berlandieri
Lowell Ahart
2006-8-22
13220
Colusa
South side of Stony Creek, about 100 yards west of the bridge across Stony Creek, just north of Stonyford.
349
Comment
RSA35284
Chenopodium botrys
Milo S. Baker
1941-7-26
10135
Colusa
Stony Creek at bridge north of Stonyford, ca. 1 mile.
Comment
CHSC114994
Chenopodium californicum
Lowell Ahart
2015-4-28
20112
Colusa
High bank on the west side of Leesville-Lodoga Road, about 300 yards north of the intersection of Bear Valley Road and Brim Road, Bear Valley, about 2 miles southwest of Leesville, about 14 1/2 miles(air) west of Williams.
395
Comment
CHSC86515
Chenopodium californicum
B. Castro
2003-3-18
1385
Colusa
Vicinity of Sites, hills N of the Sites-Lodoga Rd, and Stone Corral Creek.
213
Comment
JEPS123892
Chenopodium californicum
Lowell Ahart
2015-4-28
20112
Colusa
About 300 yards north of the intersection of Bear Valley Road and Brim Road, about 2 miles southwest of Leesville, about 14 1/2 miles (air) west of Williams.
Comment
CHSC32207
Chenopodium hians
James Jokerst
1980-8-7
1065
Colusa
North Coast Range. Near Snow Mountain.
Comment
JEPS80466
Chimaphila menziesii
Alice Q. Howard
1972-7-10
8
Colusa
wet mossy spring area crossing trail from Fouts Camp to Box Springs (highest of 2 areas on n. side of ridge separating Trout & Paradise Creeks); Snow Mt.
1676
Comment
UCD57921
Chloris gayana
Beecher Crampton
1958-6-27
4980
Colusa
2.5 miles south of Grimes.
Comment
UCD57927
Chloris gayana
Beecher Crampton
1961-7-20
5932
Colusa
2 miles S of Grimes.
Comment
UCD37706
Chloris virgata
Beecher Crampton
1961-7-20
5932
Colusa
2 miles S of Grimes.
Comment
SEINET10745049
Chloropyron palmatum
R. Stinchfield
1916-6-17
Stinchfield 284
Colusa
In alkaline soil, overflowed lands at Tule near College City
Comment
CHSC86966
Chorizanthe membranacea
B. Castro; Michelle Cedarborg
2003-5-6
1430
Colusa
Vicinity of Logan Ridge, Sites Peak and Lurline Creek.
219
Comment
CHSC86996
Chorizanthe membranacea
B. Castro
2003-5-14
1433
Colusa
Vicinity of Logan Ridge, Sulphur Gap and Lurline Creek. On west edge of Sacramento Valley.
134
Comment
HSC45743
Chorizanthe membranacea
Stephen Plant
1978-4-22
216
Colusa
Bear Valley Rd., 1.5 mi. from its junction with Hwy. 20
412
Comment
UCD159331
Cirsium cymosum
D. S. Park
2010-6-5
115
Colusa
Walker ridge, Cold Spring Mt. roadside, grassland.
760
Comment
UCD66565
Cirsium cymosum
Craig D. Thomsen
2001-5-24
2520
Colusa
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.
325
Comment
CDA1159
Cirsium cymosum
T. C. Fuller
1958-6-16
1848
Colusa
Hillside above Hwy. 20; 2 mi. W/ Cache Creek Bridge.
0
Comment
UCD159335
Cirsium douglasii var. breweri
D. S. Park; E. Dean
2010-6-5
119
Colusa
Walker ridge, Cold Spring Mt.
886
Comment
UC1299440
Cirsium douglasii var. douglasii
Freed W. Hoffman
1947-6-19
1669
Colusa
Cooks Springs North Coast Ranges
Comment
CDA15471
Cirsium occidentale var. venustum
G. F. Hrusa, WTD
1998-6-19
14608
Colusa
North Coast Ranges; Above upper Little Stony Creek. Goat Mtn. Rd. ~ 1.5 km. W of of campground.
Comment
UCD81256
Cirsium vulgare
Ellen Dean; G. Harrington, R. Willmarth, B. Rice, and C. Thomson
2009-4-8
5421
Colusa
BLM Bear Creek (Payne) Ranch. Lands to the SW of the intersection of Hwys. 16 and 20. Just north of the road leading up from the confluence of Bear and Cache Creeks.
323
Comment
UCD57861
Clarkia
Gordon Harrington; Diana Hickson, Jack Alderson
2007-4-29
46
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of State Routes 20 and 16. South terrace of Thompson Creek about 300 feet upstream of breached dam close to Road Kill Cafe.
395
Comment
CHSC86125
Clarkia affinis
Jenny Marr; Caroline Warren
1998-5-4
Colusa
Vicinity of Sites, Stone Corral Creek, and Antelope Valley.
106
Comment
UCD57561
Clarkia affinis
Stephanie Castle; with Plant Biology 102
2007-4-29
4
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of State Routes 20 and 16. Meadow on the west side of State Route 16, ca. 2 road miles south of intersection with State Route 20. West side of Bear Creek, on small rise south of Craig Creek.
304
Comment
CAS-BOT-BC164146
Clarkia concinna
David D. Keck
1933-5-30
2401
Colusa
1 mile east of Lake County line, west of Wilbur Springs
Comment
UCD82739
Clarkia gracilis
Craig Thomsen; G. Harrington
2009-5-14
2920
Colusa
Walker Ridge: south of spur road about 1/2 mile east of Walker Ridge Road, en route to Eaton Springs.
822
Comment
UC1212149
Clarkia gracilis subsp. albicaulis
Francia Chisaki, Helen K. Sharsmith
1959-5-27
1339
Colusa
about 1/4 mi e Cooks Spring (near Cooks Creek); Inner North Coast Ranges
Comment Read comments Nov 19 2007
CHSC88596
Clarkia gracilis subsp. tracyi
L. P. Janeway
2001-6-6
7114
Colusa
Inner North Coast Ranges. Eaton Springs, about 2.4 km east of Walker Ridge Road. Meadow opening.
713
Comment
UCD63104
Clarkia gracilis subsp. tracyi
Ellen Dean; G. Harrington, C. Thomsen, S. Harrison
2008-5-18
4935
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwys 20 and 16. Unnamed drainage south of Hwy 20 between Hwy 16 and Lynch Canyon that drains to Bear Creek by passing under Hwy 20.
348
Comment
UC903259
Clarkia modesta
Ethel Crum
1932-5-7
1462
Colusa
Lodoga Inner North Coast Ranges
Comment
UCR261732
Clarkia modesta
Ann Howald
2003-5-30
2359
Colusa
Inner North Coast Ranges, Indian Valley, east side of East Park Reservoir, c. 3 miles north of Lodoga, near Hole-in-the-Wall camping area
370
Comment
UCR138658
Clarkia purpurea
A. Burgard, J. Goldsmith, J. Kalt
1996-5-4
72
Colusa
8.4 mi north of Indian Reservoir Road on Walker Ridge Road; 57 mi east of Hwy 101 on Hwy 20
701
Comment
JEPS43724
Clarkia purpurea subsp. purpurea
Alice King
1906-1-1
Colusa
College City
Comment
JEPS81296
Clarkia purpurea subsp. quadrivulnera
L. R. Heckard and J. C. Hickman
1982-7-5
5910
Colusa
slope below Summit Springs (s side of snow Mt.); Snow Mt.
1524
Comment
UCR212340
Clarkia purpurea subsp. quadrivulnera
Craig D. Thomsen
2000-4-28
2201
Colusa
Bear Creek Botanical Management Area. On Caltrans right-of-way, south side of Hwy 20, 0.25 mi west of Hwy 20/16 intersection, milepost 2.80-3.00
310
Comment
SD133953
Clarkia rhomboidea
Barbara Ertter
1989-7-1
8597
Colusa
road to Goat Mt Lookout 2.2 miles south of Route M-10 (Bear Creek-Fouts Spring Road) at head of S Fk Stony Creek, ca 12 airmiles WSW of Stonyford;
1500
Comment
CAS-BOT-BC164757
Clarkia rhomboidea
Freed W. Hoffman
1948-6-28
2541
Colusa
Between Upper and Lower Letts valleys
Comment
SBBG122897
Clarkia rhomboidea
B. Ertter
1989-7-1
8597
Colusa
rd to Goat Mtn lookout, 2.2 mi S of Bear Crk-Fouts Spring Rd, head of S Fk of Stony Crk
1500
Comment
CHSC91163
Clarkia unguiculata
D. Isle
1995-6-7
1063
Colusa
Mendocino National Forest--North Coast Ranges. Bear Creek Watershed. Bear Valley Rd. 2.6 miles NW of Hwy. 20/Hwy. 16 junction + 1.4 miles SE of Wilbur Springs Junction. N. edge of Bear Valley Rd.
Comment
UCD100591
Claytonia exigua
K. Esau
1934-5-6
s.n.
Colusa
West of Williams, Tahoe-Ukiah Highway.
Comment
SEINET8214253
Claytonia exigua
K. L. Chambers
1995-4-21
5855
Colusa
Hwy. 20 east of Clear Lake, 1.0 mi. W of junction with Hwy. 16.
Comment
CHSC101595
Claytonia exigua subsp. exigua
David W. Isle
2002-4-18
1655
Colusa
Mendocino National Forest; N of Fouts Springs, N of Chlorinator Building and road to Bathhouse Trail (Snow Mtn). N aspect of E drainage; MDB and M.
524
Comment
JEPS124232
Claytonia exigua subsp. exigua
Lowell Ahart
2015-4-1
19994
Colusa
Inner North Coast Range. 1/2 mile east of Lake County Line, 12 miles (air) east-northeast of Clear Lake (town), 17 miles (air) west of Williams.
Comment
UC1745699
Claytonia exigua subsp. exigua
Annetta M. Carter, Sarah Dyal, Ethel Crum
1938-5-8
1388
Colusa
Between Leesville & Stonyford. 6.6 mi. S of Lodoga. 3 mi. N of Leesville.
Comment
CHSC112263
Claytonia exigua subsp. glauca
Lowell Ahart
2013-5-1
18677
Colusa
Inner North Coast Range. On the south side of the wash, north side of State Highway 20, just east of Lake County Line, 12.2 miles (air) east-northeast of Clear Lake (town), 17.1 miles (air) west of Williams.
566
Comment
SBBG128770
Claytonia exigua subsp. glauca
L. Ahart
2013-5-1
18677
Colusa
S side of wash, N side of State Hwy 20, just E of Lake County Line, 12.2 mi (air) ENE of Clear Lake (town), 17.1 mi (air) W of Williams
566
Comment
CHSC72459
Claytonia gypsophiloides
L. P. Janeway; David Isle
1998-7-3
5709
Colusa
Along Pacific Ridge Road (16N06) 0.5 mi east of road to Spanish Ridge and Hough Springs; about 50 ft below ridge top on north-facing slope.
1051
Comment
UC1745697
Claytonia gypsophiloides
Annetta M. Carter, Sarah Dyal, Ethel Crum
1938-5-8
1380
Colusa
Between Leesville & Stonyford. 6.6 mi. S of Lodoga. 3 mi. N of Leesville.
Comment
CHSC86523
Claytonia parviflora subsp. parviflora
B. Castro; Beth Hendrickson
2003-3-19
1392
Colusa
Vicinity of Sites, hills N of the Sites-Lodoga Rd, and Stone Corral Creek.
198
Comment
HSC45739
Claytonia parviflora subsp. parviflora
Sheila Logan
1978-4-22
55
Colusa
Bear Valley Rd., 1.5 mi. from its junction with Hwy. 20
412
Comment
JEPS87662
Claytonia parviflora subsp. parviflora
Vernon H. Oswald and Lowell Ahart
1994-4-6
6055
Colusa
Goat Mtn Rd 0.1 mi ne Digger Pine Flat (s of Stonyford)
463
Comment
RSA590192
Claytonia parviflora subsp. parviflora
Michael A. Vincent, Robert M. Rhode
1996-3-30
7285
Colusa
Along Bear Valley Rd. above Bear Creek, 1.4 mi. S jct. Wilbur Springs Rd.
Comment
UC638662
Claytonia parviflora subsp. parviflora
Ethel Crum
1938-5-8
2021
Colusa
3 mi n Leesville; Inner North Coast Ranges
Comment
RSA755471
Claytonia parviflora subsp. parviflora
David W. Isle
2002-4-18
1654
Colusa
North of Fouts Springs, North of Chlorinator Building and Road to Bathhouse Trail (Snow Mountain). North aspect of east drainage.
524
Comment
UC1051503
Claytonia parviflora subsp. parviflora
Helen K. Sharsmith
1953-6-19
4285
Colusa
near Trough Springs (on Trough Springs Ridge); Inner North Coast Ranges, Mendocino National Forest
975
Comment
JEPS80200
Claytonia perfoliata subsp. perfoliata
L. R. Heckard and J. Hickman
1980-7-3
5355
Colusa
ca 10 mi w Stonyford (just w of Summit Springs); Snow Mt.
1548
Comment
JEPS15557
Claytonia saxosa
G. Thomas Robbins with L. R. Heckard
1956-7-25
3724
Colusa
0.25 mi s Snow Mt. West summit (on ridge forming s extension of Snow Mt. West, Lake-Colusa County boundary); Snow Mt. West
2103
Comment
UCD146599
Claytonia saxosa
G. F. Hrusa
1998-6-19
14622
Colusa
North Coast Ranges. Summit of Goat Mountain.
1740
Comment
CAS-BOT-BC92547
Clematis ligusticifolia
Roxana Stinchfield
1916-7-5
388
Colusa
Banks of Sycamore Slough. Stinchfield Ranch.
Comment
CHSC91564
Clematis ligusticifolia
D. Isle
1995-7-12
395
Colusa
Mendocino National Forest--North Coast Ranges. Little Stony Creek Watershed. On BLM land S of Cook Springs.
548
Comment
JEPS108908
Clematis ligusticifolia
Lowell Ahart
2006-8-9
13094
Colusa
Gravel bar on the south side of Stony Creek, at Mine Camp, about 3 1/2 miles (air) west of Stonyford
455
Comment
CHSC25053
Collinsia grandiflora
G. N. Steger
1972-4-10
Colusa
Along road cuts of Hwy. 20, s of Lucerne along the shore of Clear Lake.
Comment
CHSC39775
Collinsia grandiflora
Brian H. McMurtry
1979-3-31
1
Colusa
Ca. 0.3 m w of jct of Hwys. 20 and 16, s side of Bear Creek, ca. 18 m sw of Williams.
321
Comment
CHSC55589
Collinsia grandiflora
Jennie J. Dubose
1991-4-6
20
Colusa
Ca. 0.3 mi w of jct of Hwys 20 and 16, s side of Bear Creek, ca. 18 mi sw of Williams.
321
Comment
CHSC57516
Collinsia grandiflora
Lance E. Neuman
1987-4-4
5
Colusa
Ca. 0.3 mi w of jct of Hwys 20 and 16, s side of Bear Creek, ca. 18 mi sw of Williams.
321
Comment
UCD66690
Collinsia greenei
Craig D. Thomsen
2000-5-11
2321
Colusa
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.
325
Comment
UCD81721
Collinsia greenei
Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia
2009-5-27
5725
Colusa
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 20. W side of road.
833
Comment
CHSC1731
Collinsia heterophylla
V. Holt
1946-4-18
Colusa
Cashe Creek.
Comment Read comments Mar 2 2015
CHSC9540
Collinsia heterophylla
L. V. Ritter
1969-4-30
222
Colusa
Ca. 10 mi sw of Williams, s side of Hwy 20.
Comment
HSC31614
Collinsia sparsiflora
Maralyn O'Meara, Gary S. Lester
1974-5-4
344
Colusa
Walker Ridge Rd., 0.7 mi. from junction with Little Indian Valley Rd.
854
Comment
UCD56670
Collinsia sparsiflora
Jack Alderson
2007-3-25
6
Colusa
BLM Payne Ranch. Destinella Flat area, just E of the Lake County border, ca. 3.4 road miles along Hwy 20 from the junction of Hwy 16 and Hwy 20. South side of Hwy 20.
559
Comment
UCD57341
Collinsia sparsiflora
Sergio Testa
2007-3-25
3
Colusa
BLM Payne Ranch. Destinella Flat area, just E of the Lake County border, ca. 3.4 road miles along Hwy 20 from the junction of Hwy 16 and Hwy 20. South side of Hwy 20.
560
Comment
POM253019
Collinsia sparsiflora var. arvensis
A. A. Heller
1937-4-24
15352
Colusa
On Highway #20, 15 miles west of Williams.
Comment
UC1049530
Collinsia sparsiflora var. collina
Rimo Bacigalupi
1950-4-16
3114
Colusa
4 mi s Ladoga (and 6 mi nnw of Leesville, along Little Indian Creek); Indian Valley, Little Indian Creek
396
Comment
JEPS17960
Collinsia sparsiflora var. sparsiflora
George B. Rossbach
1955-4-9
491
Colusa
w edge Colusa Co., Rt 20 w edge Colusa Co.
563
Comment
JEPS80164
Collinsia torreyi var. wrightii
L. R. Heckard with J. Hickman
1980-7-2
5315
Colusa
ca 10 mi w Stonyford (trail from Frog Pond to Milk Ranch, w of West Peak, Snow Mt.); Snow Mt.
1950
Comment
CDA14918
Collomia diversifolia
G. F. Hrusa
1993-5-2
10854
Colusa
North Coast Ranges; Frenzel Creek Research Natural Area. Mendocino National Forest.
Comment
CHSC48647
Collomia diversifolia
Vernon Oswald
1986-5-12
2011
Colusa
Brim Rd. (Bartlett Springs Rd.) 2.1 mi w of Bear Valley Rd. On a roadcut.
487
Comment
JEPS94201
Collomia diversifolia
Vernon Oswald and Lowell Ahart
1998-5-7
9006
Colusa
Bartlett Springs Road 2.1 mi w of Bear Valley Road (0.8 mi e of Sawtelle Valley and Grapevine Flat Roads); Bartlett Springs Road
524
Comment
JEPS15537
Collomia tinctoria
G. Thomas Robbins with L. R. Heckard
1956-7-25
3695
Colusa
open rocky slope in woods on ridge above Fouts Camp (along trail to Snow Mt. (about 1 1/2 mi airline se of summit), on Lake-Colusa County boundary)
1920
Comment
JEPS80144
Collomia tinctoria
L. R. Heckard with J. Hickman
1980-7-2
5305
Colusa
trail from Summit Springs to Snow Mt. Peaks (ca 10 mi w of Stonyford, Colusa-Lake Co. boundary)
1706
Comment
CHSC67606
Cordylanthus palmatus
James D. Jokerst
1988-8-23
3036
Colusa
Delevan National Wildlife Refuge S of Willows, in Cell 12.
Comment
CHSC67608
Cordylanthus palmatus
James D. Jokerst
1988-8-23
3038
Colusa
Colusa National Wildlife Refuge S of Willows, in Tract 7 ca. 150 m NE of Colusa Trough.
Comment
RSA0084707
Cordylanthus palmatus
Ellen Cypher
2004-9-9
2004 -018
Colusa
Delevan National Wildlife Refuge, Tract 33, CNDDB EO# 20
17
Comment
UC1561032
Cordylanthus palmatus
Dean W. Taylor
1988-8-8
10024
Colusa
far se corner of Colusa National Wildlife Refuge (along Ohm Rd, 1 mi n of Ware Rd.)
22
Comment
UC2042496
Cordylanthus pilosus
Holly Forbes and Barbara Keller
2009-7-1
Colusa
Walker Ridge Rd about 6.2 mi. N of junction with Highway 20.
Comment
JEPS14919
Cordylanthus pringlei
Rimo Bacigalupi with G. T. Robbins, L. T. Dempster, and L. R. Heckard
1956-7-26
5748
Colusa
1/2 mi above Fir-Root Spring Public Camp (at summit of ridge forming Colusa-Lake Co. line, on Colusa side, e of head of Long Ridge, region about 7 mi s of Snow Mountain)
1402
Comment
UCD63123
Cordylanthus tenuis
Ellen Dean; G. Harrington, C. Thomsen, S. Harrison
2008-5-18
4953
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwys 20 and 16. Unnamed drainage south of Hwy 20 between Hwy 16 and Lynch Canyon that drains to Bear Creek by passing under Hwy 20.
416
Comment
SFV8758
Cornus glabrata
J. K. Clark
1966-5-8
23
Colusa
On Lodoga to Stongford Road, 2.5 miles northwest of Lodoga.
320
Comment
UC1776781
Cornus glabrata
G. F. Hrusa
1989-5-7
6086
Colusa
North Coast Ranges; Road to Cedar Mtn., along Little Stony Creek, approx. 2.5 miles above intersection with Stonyford-Lodoga Rd. Shaded area beneath Populus fremontii
450
Comment
JEPS75756
Cornus sericea subsp. sericea
L. R. Heckard and R. Bacigalupi
1976-9-6
4438
Colusa
at margin of Trout Creek at trail crossing Snow Mt.
1828
Comment
CDA10282
Cotula coronopifolia
Richard R. Halse
2007-3-23
7109
Colusa
Williams; by junction of 5th Street and B Street. N 39.1586 W 122.14724
Comment
CDA36236
Cotula coronopifolia
G. K. Helmkamp, E. A. Helmkamp
2009-3-11
14381
Colusa
Sacramento Valley; Along CA Hwy. 20, 0.1 mile east of its junction with I-5, north end of Williams.
Comment
CHSC107965
Cotula coronopifolia
B. Castro; L. Janeway
2011-4-27
1863
Colusa
Sacramento Valley. Extreme W edge of Sacramento Valley; aproximately 1 mi southeast of Funks Reservoir and 800 ft northeast of Tehama-Colusa Canal. Approximate center of large +- alkaline marsh.
49
Comment
JEPS22121
Cotula coronopifolia
R. Snow
1958-4-13
419
Colusa
2 mi west of Williams
Comment
UCD159525
Cotula coronopifolia
D. S. Park
2011-4-6
274
Colusa
On side of Putnam Rd. Along ditch/small creek. Growing in abundance. Flooded.
24
Comment
SEINET8194448
Crassula connata
R. R. Halse
2010-3-20
7827
Colusa
Williams, junction of 5th Street and B Street
25
Comment
UC1221796
Crepis intermedia
Beecher Crampton
1958-5-19
4803
Colusa
5.5 mi s Lodega
Comment
CHSC107292
Cressa truxillensis
L. P. Janeway; B. Castro
2011-7-9
10510
Colusa
Sacramento Valley. Extreme west edge of Sacramento Valley; 1.5 km southeast of Funks Reservoir and 0.1-0.6 km northeast of Tehama-Colusa Canal. Just off of the northwest corner of the marsh.
49
Comment
CHSC29713
Cressa truxillensis
K. R. Stern
1980-6-30
6649
Colusa
South central border area of Colusa National Wildlife Refuge.
45
Comment
POM66160
Cressa truxillensis
Roxana Stinchfield
1916-7-11
143
Colusa
Willaims Road at theTrough
Comment
CHSC84955
Croton setiger
Lowell Ahart
2003-10-23
10676
Colusa
Along Squaw Creek, just south of East Park Reservoir, about 1/8 mile northwest of Sites Lodoga Road, about 1 mile north of Lodoga, about 21 miles west of Maxwell.
368
Comment
UCR205144
Croton setiger
George K. Helmkamp, E. A. Helmkamp
2008-10-14
14249
Colusa
Sacramento Valley, along CA-20, 0.2 mile east of the Sutter County line
9
Comment
SACT000807
Crypsis niliacea
Herbert Mason
1945-7-11
Colusa
Alkali Plains 3 miles above Colusa
Comment
CAS-BOT-BC190085
Crypsis schoenoides
Milo S. Baker
1946-9-4
11621
Colusa
Butte Sink near locked Gate of Colusa Gun Club.
Comment
CHSC52702
Crypsis schoenoides
James Jokerst
1985-4-24
2494
Colusa
Near Lurline Creek.
41
Comment
CHSC80307
Crypsis schoenoides
B. Castro; G. Kuenster
2000-7-19
1205
Colusa
Vicinity of Maxwell, Funks Creek, and the Glenn-Colusa canal.
48
Comment
RSA256295
Crypsis schoenoides
J. R. Reeder, C. G. Reeder
1973-5-28
6195
Colusa
ca. 3 miles S of Colusa along Hwy. 45.
Comment
RSA268077
Crypsis schoenoides
J. R. Reeder, C. G. Reeder
1972-6-6
5658
Colusa
ca. 8 miles W of Live Oak, one mile S of Wildlife Area headquarters.
183
Comment Read comments Aug 18 2014
SEINET12765117
Crypsis schoenoides
Lowell Ahart
2006-8-9
13116
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.; 0
347
Comment
CAS-BOT-BC190165
Crypsis vaginiflora
Herbert L. Mason
1945-7-11
12643
Colusa
Butte Lodge Outing Club, three miles above Colusa. Near Butte Creek.
Comment
POM198510
Crypsis vaginiflora
Roxana Stinchfield
1916-7-11
466
Colusa
Davis Tule, near Sycamore Slough.
Comment
RSA756393
Crypsis vaginiflora
Barbara Ertter, Elizabeth Nesse, Laura Fujii, Dawn Espindola
1989-10-21
8873
Colusa
SE end of East Park Reservoir N of Lodoga.
366
Comment
UC1100189
Crypsis vaginiflora
Herbert L. Mason
1945-9-19
12718
Colusa
below causeway over Butte Sink spillway (e bank of river, 1 mi above Colusa); Sacramento River, Butte Sink
Comment
UCD59987
Crypsis vaginiflora
Freed W. Hoffman
1944-7-13
1966
Colusa
North Coast Ranges. Bear Creek at junction of Sulphur Creek near Sulphur Springs.
Comment
CHSC14127
Cryptantha
L. V. Ritter
1969-4-30
236
Colusa
Ca 100 yds. w of the junction of Highway 20 and 16, ca 50 yds. n of Highway 20.
Comment
OBI20715
Cryptantha excavata
Robert F. Hoover
1968-5-27
11099
Colusa
Bear Creek cyn, N of Hwy 20 (near Wilbur Springs)
Comment
SBBG40520
Cryptantha excavata
R. F. Hoover
1968-5-27
11099
Colusa
Bear Crk cyn N of Hwy 20 (near Wilbur Springs)
Comment
UC79296
Cryptantha excavata
Katharine Brandegee
Colusa
Stites [Sites], Colusa Co.
Comment
CHSC79095
Cryptantha flaccida
B. Castro; C. Warren
2000-4-3
1048
Colusa
Vicinity of Antelope Valley, Sites-Lodoga Rd, and Grapevine Ck.
179
Comment
UC1613300
Cryptantha flaccida
Charles M. Belshaw
April 1937
2881
Colusa
vicinity of Cook's Spring (Inner North Coast Ranges, Devil's Ridge); Inner North Coast Ranges, Devil's Ridge
Comment
SEINET7881830
Cryptantha hendersonii
Helen K. Sharsmith
1953-1
4278
Colusa
One mile north of Trough Springs on Trough Springs Ridge; Mendocino National Forest
914
Comment
HSC3611
Cryptantha hispidula
Leo Koch
1940-4-29
936
Colusa
Near Lake and Colusa county line along Hwy. 20, Williams Hwy.
Comment
UC857088
Cryptantha hispidula
Alice Eastwood and John Thomas Howell
1938-5-16
5632
Colusa
Lake-Colusa county on road to Williams
Comment
UCD66686
Cryptantha hispidula
Craig D. Thomsen
2000-5-11
2313
Colusa
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.
325
Comment
SEINET7883435
Cryptantha hispidula
Leo Koch
1940-1
936 a
Colusa
Serpentine hill near Lake and Colusa county line along Highway 20, Williams Highway
Comment
UC1212064
Cryptantha intermedia
Ethel Crum
1938-5-8
2027
Colusa
3 mi n Leesville; Inner North Coast Range
Comment
UC1212585
Cryptantha intermedia
Francia Chisaki and Helen Sharsmith
1959-5-26
1331
Colusa
5 air mi w Stonyford (above Red Bridge Camp); Inner North Coast Ranges, Mendocino National Forest
Comment
UC971695
Cryptantha intermedia
Leo Koch
1940-4-29
936 b
Colusa
near Lake and Colusa County (along Highway 20; Williams Highway)
Comment
RSA114163
Cryptantha intermedia
H. K. Sharsmith
1953-6-19
4278
Colusa
One mile north of Trough Springs on Trough Springs Ridge. Mendocino National Forest
915
Comment
SBBG29133
Cryptantha intermedia
L. Constance
1939-5-14
2489
Colusa
0.5 mi E of Mill Crk Ranger Station
548
Comment
UC1177888
Cryptantha intermedia
Peter M. Ray
1950-4-15
1713
Colusa
road 3 mi e Stony Creek Bridge (s side of canyon of Big Stony Creek); Big Stony Creek
Comment
HSC3610
Cryptantha intermedia var. hendersonii
Leo Koch
1940-4-29
936
Colusa
Near Lake and Colusa county line along Hwy. 20, Williams Hwy.
Comment
SDSU20614
Cryptantha intermedia var. intermedia
Ronald B. Kelley
2008-4-13
1520
Colusa
Bear Valley, on north side of Bear Valley Road, 5.75 miles south of Brim Road junction, on shallow, barren, eroding slopes.
387
Comment
CHSC79477
Cryptantha microstachys
B. Castro; L. P. Janeway
2000-5-4
1142
Colusa
Vicinity of Sites, Sites-Lodoga Rd, and Grapevine Creek.
249
Comment
UC638663
Cryptantha microstachys
Ethel Crum
1938-5-7
2019
Colusa
4.2 mi n Rumsey; Inner North Coast Range, Comanche Hills
254
Comment
UC726039
Cryptantha microstachys
A. A. Heller
1940-6-7
15713
Colusa
ridge e of Lodogo (just above the road leading to Sites)
Comment
UC1051698
Cryptantha milobakeri
Helen K. Sharsmith
1953-6-19
4279
Colusa
1 mi n Trough Springs (on Trough Springs Ridge); Inner North Coast Ranges, Mendocino National Forest
914
Comment
UC1212061
Cryptantha muricata
C. R. Bell
1950-4-26
770
Colusa
w of Leesville (on road to Bartlett Springs, halfway up e side of county-line ridge)
Comment
UC1731395
Cryptantha muricata
Dean W. Taylor
1998-6-16
16662
Colusa
Sulphur Creek canyon 0.5 mi below (e) Wilbur Springs (n-facing shale slide); North Coast Ranges, Walker Ridge and vicinity
381
Comment
UCD84450
Cryptantha muricata
Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk
2010-6-2
6058
Colusa
Walker Ridge. Along Walker Ridge Rd, E side of road in turnout. Just past Pinus attenuata groves.
981
Comment
JEPS67743
Cryptantha nemaclada
R. F. Hoover
1938-4-24
3217
Colusa
w. Arbuckle (Sand Creek foothills); Sand Creek foothills
Comment
UC78654
Cryptantha rostellata
Katharine Curran
May 1884
Colusa
Leesville
Comment
JEPS13746
Cupressus macnabiana
Frank W. Gould
1939-4-8
631
Colusa
1.5 mi w of Colusa County line (on road to Lucerne)
Comment
UCD110851
Cupressus macnabiana
Christopher Mallek
2008-1
WR- 1
Colusa
Walker Ridge. Border of Colusa and Lake Counties.
802
Comment
RSA388860
Cupressus macnabiana
Linda Bell
1975-4-20
63
Colusa
Walker Ridge Road ca. 7 miles from the junction with State Highway 20
Comment
CAS-BOT-BC80805
Cupressus sargentii
C. Hart Merriam
1907-7-23
s.n.
Colusa
[Cook] Cooks Springs
Comment
JEPS87788
Cupressus sargentii
Vernon H. Oswald and Lowell Ahart
1994-3-23
6010
Colusa
s side Little Stony Creek (in section on e side of Frenzel Creek, s of Stonyford); Frenzel Creek Research Natural Area
518
Comment
NY16797
Cupressus sargentii
C. B. Wolf
1934-10-15
6189
Colusa
This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request.
Comment
CHSC115439
Cuscuta
K. R. Stern
1980-5-5
6632
Colusa
South central border area of Colusa National Wildlife Refuge.
45
Comment
CDA35676
Cuscuta approximata
CDFA Staff
2011-11-5
PDR# 1552505
Colusa
Maxwell.
0
Comment
JEPS75861
Cuscuta californica
L. R. Heckard
1974-9-10
3888
Colusa
e of East Peak (along upper reaches of Dark Hollow Creek); Snow Mt., Dark Hollow Creek
2011
Comment
SBBG115554
Cuscuta californica var. californica
B. Crampton
1961-7-20
5935
Colusa
4 mi SE of Grimes, along Knight's Landing Rd
Comment
UCD67007
Cuscuta californica var. californica
Craig D. Thomsen
2008-5-23
2740
Colusa
BLM Payne Ranch. Lands to the SW of Hwy 16/20 intersection. About 0.75 mile south of Hwy 20 (south of Destanella Flat), 2.5 miles west of Hwy 16.
520
Comment
SEINET3157202
Cycladenia humilis
T. S. Brandegee
1890-6-23
sn
Colusa
Snow Mountain
Comment
CHSC46872
Cycloloma atriplicifolium
Vernon Oswald
1989-9-12
4009
Colusa
Goat Mtn Rd 2.1 mi wsw of Lodoga-Stonyford Rd, ca. 6 mi (air) s of Stonyford. On the n side of Little Stony Creek.
411
Comment
CAS-BOT-BC190176
Cynodon dactylon
Beecher Crampton
1958-6-26
4975
Colusa
5.5 miles south of College City.
Comment
UCD60095
Cynodon dactylon
Kathryn Johnson
1966-5-14
51
Colusa
14 miles east of Lodoga on road to Maxwell.
Comment
UCD72464
Cynodon dactylon
Ellen Dean; J. Alderson, N. Voegtly, and C. Thomsen
2007-5-12
3798
Colusa
BLM Payne Ranch, lands to the SW of jct of Hwys 16 and 20. Area of ranch west of Hwy 16, near bridge that spans Bear Creek, ca. 4.5 road miles south of junction of Hwy 16/20. Bank of Bear Creek near north end of bridge, west side of creek.
260
Comment
CAS-BOT-BC433233
Cynoglossum grande
Richard R. Halse
2014-3-25
9032
Colusa
Along the Sites-Logoda Road ca. 4.7 miles northeast of Logoda; on the west end of Grapevine Pass.
527
Comment
UC1100564
Cyperus acuminatus
Herbert L. Mason and Verne Grant
1946-8-6
12969
Colusa
pond 2.7 mi. n. Colusa (between Sacramento R. and Butte Creek); Butte Sink
Comment
CAS-BOT-BC114780
Cyperus acuminatus
Herbert L. Mason; Verne Grant
1946-8-6
12969
Colusa
Pond 2.7 miles N of Colusa between Sacramento River and Butte Creek.
Comment
CAS-BOT-BC114783
Cyperus acuminatus
Milo S. Baker
1946-9-4
11590
Colusa
Gridley-Princeton Rd. Butte Sink.
Comment
UCD141000
Cyperus acuminatus
Herbert L. Mason; Verne Grant
1946-8-6
12969
Colusa
2.7 miles north of Colusa between Sacramento River and Butte Creek.
Comment
CAS-BOT-BC114731
Cyperus difformis
John Thomas Howell
1944-7-18
19838
Colusa
Roadside hollow in shallow overflow from rice fields, 3 mi W of Williams.
30
Comment
SEINET7581552
Cyperus difformis
Lowell Ahart
2006-8-9
13143
Colusa
North side and just east of the bridge across Stony Creek, just north of Stonyford.
347
Comment
UC1100541
Cyperus difformis
Malcolm A. Nobs and S. Galen Smith
1949-9-9
1877
Colusa
3 mi. w. Williams
Comment
UCD141006
Cyperus difformis
V. C. Bryant
1931-6-24
2205
Colusa
Colusa.
Comment
CDA38928
Cyperus difformis
J. T. Howell
1944-7-18
19838
Colusa
3 miles west of Williams.
Comment
UCD141008
Cyperus difformis
John Thomas Howell
1944-7-18
19838
Colusa
3 miles west of Williams.
Comment
UCD141021
Cyperus difformis
June McCaskill
1954-8-23
372
Colusa
7 miles east of Arbuckle, jus north of the road east from Arbuckle.
Comment
CAS-BOT-BC114573
Cyperus eragrostis
Roxana Judkins [later Mrs. Ferris q.v.] Stinchfield
1916-7-9
419
Colusa
On Phillips ranch, near Sycamore.
Comment
SEINET9753686
Cyperus eragrostis
Richard Carter
2006-7-31
Colusa
3.7 mi SSE Colusa, jct. Hwy CA 20 and Hwy CA 45
Comment
CHSC115629
Cyperus eragrostis
David Isle; Rhonda Isle
2014-9-27
2141
Colusa
Northern Sacramento Valley Foothills: W side East Park Reservoir, ~0.3 mi S of boatlaunch, ~100 yds E of normal lake edge in muddy clay soil. (Gilmore Peak California: 10S -0541629E, 4355225N).
353
Comment
CAS-BOT-BC114386
Cyperus erythrorhizos
Herbert L. Mason
1945-9-19
12724
Colusa
Below causway over Butte Sink spillway, E bank of Sacramento River, 1 mi N of Colusa.
Comment
CHSC112621
Cyperus erythrorhizos
Lowell Ahart
2013-10-1
19078
Colusa
Inner North Coast Range. Strand of East Park Reservoir, about 2 1/2 miles (air) southeast of Stonyford, about 2 1/2 miles northwest of Lodoga, about 10 miles (air) northwest of Sites.
364
Comment
JEPS110331
Cyperus erythrorhizos
Lowell Ahart
2006-9-26
13356
Colusa
Along the deep ditch, south side of the Delevan National Wildlife Refuge, north side of Maxwell road, about 3 miles west of Colusa Princeton Road, about 5 1/2 miles east of Maxwell
24
Comment
JEPS64102
Cyperus erythrorhizos
W. L. Jepson
1929-10-1
15342
Colusa
Maxwell
25
Comment
UC698542
Cyperus erythrorhizos
P. B. Kennedy
1925-9-8
Colusa
Cortena
Comment
UCD141054
Cyperus erythrorhizos
H. L. Mason
1945-9-19
12724
Colusa
1 mile N of Colusa. Below causeway over Butte Sink spillway, E bank of Sacramento River.
Comment
CAS-BOT-BC114384
Cyperus erythrorhizos
Roxania Strichfield
1916-7-9
419
Colusa
Overflow land in Oak grove along Sacramento River. Philips Ranch near Sycamore.
Comment
POM313098
Cyperus odoratus
H. L. Mason
1945-9-19
12721
Colusa
Below caus[e]way over Butte Sink spillway, East bank of Sacramento River, 1 mile north of Colusa.
Comment
JEPS73451
Cystopteris fragilis
L. R. Heckard
1972-7-8
3048
Colusa
n side ridge running se of Snow Mt (West Peak)
2011
Comment
RSA714647
Dactylis glomerata
Daisie Huang
2006-4-15
6041502
Colusa
Maxwell rest stop on I-5.
25
Comment
POM208489
Damasonium californicum
H. M. Hall
1916-8-10
10265
Colusa
Sacramento Valley.
Comment
JEPS80385
Danthonia unispicata
L. R. Heckard and J. Hickman
1981-6-22
5618
Colusa
Dark Hollow Creek Snow Mt. (meadow)
1889
Comment
CHSC75705
Datisca glomerata
Vernon H. Oswald; Lowell Ahart
1999-6-22
9787
Colusa
2.2 mi west of Stonyford-Lodoga Road on County Road 42 paralleling Little Stony Creek.
426
Comment
JEPS120797
Datura stramonium var. tatula
Lowell Ahart
2013-10-1
19083
Colusa
Strand of East Park Reservoir, about 2.5 air miles SE of Stonyford, about 2.5 miles NW of Lodoga, about 10 air miles NW of Sites.
Comment
JEPS120992
Daucus pusillus
Lowell Ahart, John Dittes, Josephine Guardino
2013-4-26
18625
Colusa
Rocky serpentine outcrop on the north side of Hwy 20, just east of Lake County line, 12.2 air miles east northeast of the town of Clear Lake, 17.1 air miles west of Williams.
Comment
UCD38811
Daucus pusillus
Beecher Crampton
1958-5-19
4797
Colusa
10.1 miles southeast of Leesville.
Comment
POM174571
Daucus pusillus
Roxana S. Ferris
1926-4-23
6587
Colusa
2 miles from Stony Ford.
Comment
JEPS80869
Delphinium antoninum
L. R. Heckard
1972-7-8
3051
Colusa
n side of ridge running se Snow Mt.; West Peak
2011
Comment
JEPS81344
Delphinium antoninum
L. R. Heckard and J. C. Hickman
1982-7-7
5957
Colusa
Middle Fork of South Fork of Stony Creek Snow Mt. (originating in Veratrom Meadow before Milk Ranch)
1935
Comment
JEPS81345
Delphinium antoninum
L. R. Heckard and J. C. Hickman
1982-7-7
5957
Colusa
Middle Fork of South Fork of Stony Creek Snow Mt. (originating in Veratrom Meadow before Milk Ranch)
1935
Comment
UC1096411
Delphinium antoninum
Helen K. Sharsmith
1956-6-30
4404
Colusa
Linger Longer Camp Inner North Coast Ranges, Mendocino National Forest, Goat Mo
1584
Comment
JEPS81406
Delphinium antoninum
L. R. Heckard and J. C. Hickman
1982-7-9
6013
Colusa
about 100 m w lookout (Colusa-Lake Co. boundary); Goat Mt
1859
Comment
UC424843
Delphinium antoninum
unknown
1929-7-1
3509 b
Colusa
between peaks Snow Mt.
2133
Comment
UCD57667
Delphinium hesperium
Erica A. Smith; with Plant Biology 102
2007-4-29
5
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of State Routes 20 and 16. Central/Eastern part of ranch. Craig Canyon. Along unimproved road, just west of where road crosses Craig Creek.
313
Comment
CAS-BOT-BC10226
Delphinium hesperium
Clinton Hart Merriam
s.n.
Colusa
Indian Rancheria, Stony Ford
Comment
CAS-BOT-BC238187
Delphinium hesperium subsp. pallescens
Roman Gaukin
1958-5-4
s.n.
Colusa
Bear Valley
Comment
CDA15469
Delphinium hesperium subsp. pallescens
G. F. Hrusa, T. D. Wilfred
1998-6-19
14606
Colusa
North Coast Ranges; Scattered perennial on steep slope within chaparral above upper Little Stony Creek. Goat Mtn. Rd. ~ 1.5 km. W of of campground. Non-serpentine. Flowers blue, other plants nearby range to light blue and pinkish. Crown attachment firm.
Comment
CHSC61697
Delphinium hesperium subsp. pallescens
Marjorie McBride
1986-4-5
11
Colusa
Hwy 20, 3 mi e of jct with Hwy 16. Top of slope, s side of road.
243
Comment
CHSC76785
Delphinium hesperium subsp. pallescens
Mary Ann Griggs
1999-5-13
Colusa
Vicinity of Antelope Valley and Sites.
121
Comment
UC726271
Delphinium hesperium subsp. pallescens
A. A. Heller
1940-5-6
15574
Colusa
roadside bank on State Hwy #20 about 3 mi e junction with Highway #16 (<later note places locality along road from Williams to Upper Lake...a spot 3 mi e of <junction> actually is n...)
Comment
UCD163308
Delphinium hesperium subsp. pallescens
Craig D. Thomsen
1997-4-20
1911
Colusa
Bear Valley. About 5 miles north of Hwy 20.
Comment
UCD64429
Delphinium hesperium subsp. pallescens
Craig D. Thomsen
2000-4-28
2208
Colusa
Bear Creek Botanical Management Area. On Caltrans right-of-way, south side of Hwy 20, 0.25 mile west of Hwy 20/16 instersection, Colusa Co. milepost 3.00.
310
Comment
POM149761
Delphinium patens
Roxana S. Ferris
1917-4-14
550
Colusa
7 miles W of Arbuckle, Arbuckle - Rumsey Road
Comment
CAS-BOT-BC116431
Delphinium patens subsp. patens
Roxana S. Ferris
1926-4-23
6446
Colusa
Grapevine Grade near top between Stonyford and Sites
Comment
CAS-BOT-BC17044
Delphinium recurvatum
Mrs. H. C. Cantelow
1936-4-11
1208
Colusa
Bear Creek Canyon.
Comment
SEINET946331
Delphinium variegatum
June McCaskill
1962-1
651
Colusa
Ca. 200 yards west of road; on road along Bear Creek from State Highway 20 north to Leesville, 3.6 miles north of Wilbur Springs turnoff
Comment
UCD96738
Delphinium variegatum
Clinton C. Shock
1980-5-3
65
Colusa
Bear Valley, west side, ca 12 miles north of State Highway 20.
384
Comment
HSC95711
Delphinium variegatum
A. Bebensee
1984-4-21
10
Colusa
9.8 mi. N of Hwy. 20 on Bear Valley Rd., 0.5 mi. into field on E side of rd.
Comment
RSA158040
Delphinium variegatum
June McCaskill
1962-5-2
651
Colusa
Colusa County: road along Beaar Creek from Hwy 20 N to Leesville, 3.6 miles N of Wilbur Springs turnoff
Comment
CHSC89827
Delphinium variegatum subsp. variegatum
B. Castro; L. Janeway
2001-5-2
1244
Colusa
Vicinity of Grapevine Creek, Antelope Creek, and Pence Mtn. In flat to undulating open grazed grassland between hills of blue oak woodland. Adjacent to dirt road paralleling N-S-trending creek.
335
Comment
HSC87075
Delphinium variegatum subsp. variegatum
L. Blackford, S. Branch, D. Malm
1988-4-17
77
Colusa
1.3 mi. S of Bear Valley Rd. from corner of Brim Rd. and Bear Valley Rd.
Comment
CAS-BOT-BC16956
Delphinium variegatum subsp. variegatum
Wayne Roderick
1967-5-7
s.n.
Colusa
Bear Valley
304
Comment
HSC96712
Delphinium variegatum subsp. variegatum
Kay Izlar
2001-4-21
5
Colusa
Bear Valley Rd. off Hwy. 20
415
Comment
HSC96981
Delphinium variegatum subsp. variegatum
Jenny Marr, Heidi West, Joyce Lacey, Caroline Warren, Natalie Wight
1998-4-14
Colusa
Near Grapevine Creek, Antelope Valley, Sites-Lodoga Rd.
137
Comment
POM270792
Delphinium variegatum subsp. variegatum
Lyman Benson
1935-3-27
6330
Colusa
8 miles E of Lake County line, inner N coast mt. range, Sacramento River watershed
305
Comment
UCD61143
Deschampsia cespitosa
Freed W. Hoffman
1944-7-13
1949
Colusa
Between Indian and Bear valleys.
Comment
JEPS82284
Deschampsia cespitosa subsp. cespitosa
Roger Raiche
1982-3-20
20245
Colusa
Walker Ridge
Comment
CAS-BOT-BC192668
Deschampsia danthonioides
Doris K. Kildale
1928-5-8
5019
Colusa
3 miles south of Arbuckle
Comment
CAS-BOT-BC192669
Deschampsia danthonioides
L. R. Abrams
1928-5-8
12591
Colusa
2 miles south of Arbuckle
Comment
CAS-BOT-BC192672
Deschampsia danthonioides
A. A. Heller
1902-5-1
5435
Colusa
Near College City
Comment
JEPS80182
Deschampsia danthonioides
L. R. Heckard with J. Hickman
1980-7-3
5334
Colusa
ca. 10 mi. w. Stonyford (just w. of Summit Springs, s.w. Snow Mt.); Colusa-Lake Co. Boundary
1548
Comment
JEPS75750
Deschampsia elongata
L. R. Heckard and R. Bacigalupi
1976-9-6
4430
Colusa
along trail from Summit Springs to Fouts Camp (Snow Mt.); Lake-Colusa Co. Line, Snow Mt.
1798
Comment
JEPS81318
Descurainia sophia
L. R. Heckard and J. C. Hickman
1982-7-6
5933
Colusa
slope above and e Summit Springs (on s side of Snow Mt); Snow Mt.
1584
Comment
CHSC111331
Dicentra chrysantha
David Isle; Rhonda Isle
2013-5-19
2040
Colusa
0.1 mi W of Maxwell Grade Summit; burned NW asp. S of Sites Lodoga Road. Alluvial terrace of eph. drainage; Sites Fire Area GPS (NFAD 27) 10S 0546355E 4355688N.
548
Comment
UC1053476
Dicentra chrysantha
Rimo Bacigalupi and Arthur Holmgren
1950-4-26
3179
Colusa
just w Bear Valley (slope just w of base of grade to Indian Valley (Bartlett Mt. Road)); Inner North Coast Ranges
Comment
CAS-BOT-BC500073
Dichelostemma capitatum
Roxana S. Ferris
1917-4-14
600
Colusa
5 mi west of Arbuckle
Comment
HSC31718
Dichelostemma capitatum subsp. capitatum
Teresa Prendusi
1974-5-4
50
Colusa
Beyond Clyde Mine 1/8 mi.
854
Comment
HSC47745
Dichelostemma capitatum subsp. capitatum
Thomas W. Nelson, Jane P. Nelson
1978-4-29
3950
Colusa
Along Bear Valley Rd., 2.5 mi. from junction with Hwy. 20
366
Comment
HSC72112
Dichelostemma capitatum subsp. capitatum
J. P. Smith, Thomas W. Nelson, Jane P. Nelson
1978-4-2
9532
Colusa
Bear Valley Rd, 3 mi. from its junction with SR 20
366
Comment
UC1053449
Dichelostemma volubile
Rimo Bacigalupi and Arthur Holmgren
1950-4-26
3173
Colusa
7.7 mi w Sites (Grapevine Grade to Lodoga); Grapevine Grade
Comment
UCD84561
Dichelostemma volubile
Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society
2010-6-5
6086
Colusa
Walker Ridge. Along Walker Ridge Road, N of turnoff to Indian Valley Reservoir but S of Til Jones Springs. Many old undeveloped roads here.
817
Comment
CAS-BOT-BC503139
Dichelostemma volubile
David D. Keck
1933-5-30
2400
Colusa
1 mile east of Lake County line, west of Wilbur Springs, on south slope.
Comment
SEINET3885768
Dichelostemma volubile
Richard R. Halse
1989-5-7
3826
Colusa
Along the Leesville Road, 3 miles southeast of Leesville; just below the summit of the pass on the east side.; 0
480
Comment
JEPS110360
Digitaria sanguinalis
Lowell Ahart
2006-8-22
13226
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford
347
Comment
LA8596
Digitaria sanguinalis
H. S. Yates;
1936-8-14
6138
Colusa
3 mi. S of Grimes
15
Comment
RSA725022
Digitaria sanguinalis
L. Ahart
2006-8-22
13226
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
348
Comment
CAS-BOT-BC152170
Diplacus bolanderi
V. Rattan
1884-6-1
s.n.
Colusa
Unspecified
Comment
SEINET199008
Diplacus layneae
Helen K. Sharsmith
1953-1
4290
Colusa
Mendocino Nat For; In metamorphic rubble of forest clearing, 5 mi beyond Trough Springs on rd to Goat Mt.
1280
Comment
CHSC60689
Diplacus tricolor
Vernon H. Oswald
1993-4-14
5263
Colusa
N. side of O'Hair Rd., just E of the headquarters buildings, Colusa National Wildlife Refuge, SW of Colusa.
18
Comment
UCD64170
Distichlis spicata
Beecher Crampton
1958-6-27
4979
Colusa
2.5 miles south of Grimes.
Comment
UCD64555
Distichlis spicata
A. A. Beetle
1942-5-21
3270
Colusa
12 miles north of Williams.
Comment
UCD64213
Distichlis spicata var. stricta
Beetle
1946-6-27
4685
Colusa
Junction of Wilber Springs Rd. and State Hwy. 20.
Comment
UCD64348
Distichlis spicata var. stricta
K. Esau
1932-6-29
Colusa
Sutter Basin, near Colusa.
Comment
UCD162980
Dodecatheon hendersonii
Craig D. Thomsen
2002-2-7
2562
Colusa
Bear Creek Botanical Management Area. Roadside shoulder of Hwy 20 (south side), about 1.2 miles west of Hwy 20/16 intersection, west end of large turnout.
345
Comment
HSC83326
Dodecatheon hendersonii
Harold Grams
1975-4-12
10
Colusa
Hwy. 16, 12.4 mi. N of Rumsey
Comment
CHSC48008
Downingia elegans
Vernon Oswald
1984-7-20
1616
Colusa
Lily Pond n of Letts Lake in Mendocino National Forest.
1280
Comment
CHSC79145
Downingia insignis
B. Crampton
1953-4-29
1145
Colusa
Along the road, about 3 miles east of Maxwell.
Comment
JEPS33725
Downingia pulchella
D. E. Breedlove
1963-5-30
5191
Colusa
5 mi w Leesville
Comment
UC70438
Drosera rotundifolia
Milo S. Baker
1898-8-22
555
Colusa
Bear Valley Mts.; along stream
Comment
UCD81243
Drymocallis glandulosa
Ellen Dean; G. Harrington, R. Willmarth, B. Rice, and C. Thomson
2009-4-8
5407
Colusa
BLM Bear Creek (Payne) Ranch. Lands to the SW of the intersection of Hwys. 16 and 20. Inside canyon that is located to the south of Brophy Canyon.
292
Comment
HSC45678
Dudleya cymosa
Stephen Plant
1978-4-22
203
Colusa
Bear Valley Rd., 1.5 mi. from its junction with Hwy. 20
412
Comment
CHSC113133
Dysphania ambrosioides
Lowell Ahart
2013-10-1
19088
Colusa
Inner North Coast Range. Strand of East Park Reservoir, about 2 1/2 miles (air) southeast of Stonyford, about 2 1/2 miles northwest of Lodoga, about 10 miles (air) northwest of Sites.
364
Comment
CAS-BOT-BC197058
Echinochloa crus-galli
Milo S. Baker
1944-7-18
10871
Colusa
A few mi. W. of Williams along Highway to Lake Co.
Comment
CAS-BOT-BC242662
Echinochloa crus-galli
Beecher Crampton
1963-9-9
6890
Colusa
1/4 mile east of Cortena
Comment
RSA725019
Echinochloa crus-galli
L. Ahart
2006-8-22
13215
Colusa
south side of Stony Creek, about 100 yards west of the bridge across Stony Creek, just north of Stonyford.
349
Comment
SACT001042
Echinochloa crus-galli
Malcolm Nobs, S. Smith
1949-9-9
Colusa
Rice fields, 3 miles west of Williams.
Comment
UCD32929
Echinochloa crus-galli
Beecher Crampton
1965-7-8
7448 a
Colusa
Colusa County, 4.5 miles south of Grimes.
Comment
JEPS47814
Echinochloa crus-pavonis
W. L. Jepson
1929-10-1
15345
Colusa
Maxwell
Comment
UCD61167
Echinochloa oryzicola
P. B. Kennedy
1925-9-18
Colusa
Rice Station, Cortena.
Comment
UCD61179
Echinochloa oryzoides
Beecher Crampton
1963-9-9
6893
Colusa
1/4 mile E of Cortena.
Comment
CAS-BOT-BC445568
Echinodorus berteroi
Roxana Stinchfield
1916-7-11
436
Colusa
Davis Tule near Sycamore Slough
Comment
RSA518796
Echinodorus berteroi
Barbara Ertter, E. Neese, Laura Fujii, Dawn Espindola
1989-10-21
8879
Colusa
NW side of East Park Reservoir near end of East Park Road form Stonyford.
366
Comment
UC1562615
Echinodorus berteroi
Barbara Ertter with Elizabeth Neese, Laura Fujii, and Dawn Espindola
1989-10-21
8879
Colusa
n.w. side East Park reservoir (near end of East Park Rd. from Stonyford)
365
Comment
CAS-BOT-BC445569
Echinodorus berteroi
Gordon H. True
1974-11-15
7840
Colusa
On Delevan Road just west of Four Mile Road, 4 mi. east of Delevan
27
Comment
CAS-BOT-BC291140
Eclipta prostrata
Herbert L. Mason
1945-9-19
12725
Colusa
Below causway over Butte Sink spillway, east bank of Sacramento River, 1 mile north of Colusa
Comment
UCD131244
Eclipta prostrata
H. L. Mason
1945-9-19
12725
Colusa
1 mile N of Colusa. Below causeway over Butte Sink spillway, E bank of Sacramento River.
Comment
HSC41911
Ehrendorferia chrysantha
M. A. Baker
1977-4-24
224
Colusa
Walker Ridge Rd. above Barrel Springs Campground
701
Comment
HSC60471
Ehrendorferia chrysantha
J. P. Smith
1977-4-24
9038
Colusa
Along Walker Ridge Rd. above Barrel Springs Campground
701
Comment
UCD170084
Ehrendorferia chrysantha
Jack Alderson
2016-5-14
s.n.
Colusa
BLM Bear Creek Ranch (formerly Payne Ranch); 5500 feet (1675 m) south of the intersection of Highway 20 and the Colusa County line.
499
Comment
UC1245141
Elatine ambigua
June McCaskill
1954-8-9
357
Colusa
ca 2 mi e Princeton (300 yards s of Glenn Co. line)
Comment
SEINET893014
Elatine ambigua
June McCaskill
1954-1
357
Colusa
ca. 2 miles east of Princeton and 300 yards south of Glenn County line
Comment
UC1100591
Eleocharis engelmannii
Malcolm A. Nobs, S. Galen Smith
1949-9-9
1878
Colusa
rice fields 3 mi W of Williams
Comment
UCD49598
Eleocharis engelmannii
John M. Tucker
1953-8-28
2676
Colusa
In rice field; 7 miles east of Arbuckle, Colusa County, California.
Comment
CHSC79049
Eleocharis macrostachya
J. Marr; C. Warren, H. West
1998-7-1
Colusa
West of Maxwell, vicinity of Logan Ridge and Funks Creek, in vernal pool in narrow valley bottom west of ridge.
106
Comment
UCD57290
Eleocharis macrostachya
Ellen Dean; C. Thomsen, S. Bledsoe, J. Alderson, M. Starbuck
2007-4-7
3661
Colusa
BLM Payne Ranch. Craig Canyon. West of Hwy. 16, ca. 2 road miles south of junction of Hwy. 20 and Hwy. 16. Along unimproved road.
319
Comment
JEPS80393
Elymus
L. R. Heckard and J. Hickman
1981-6-22
5626
Colusa
below (s of) Dark Hollow Trail; Snow Mt.
1981
Comment
UCD61526
Elymus elymoides
Helen K. Sharsmith
1953-6-19
4267
Colusa
Near confluence of North and Middle forks of Stoney Creek, Red Bridge Camp, Mendocino National Forest.
548
Comment
UCD82516
Elymus elymoides
Craig Thomsen; G. Harrington
2009-5-12
2874
Colusa
Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd.
710
Comment
SEINET10564646
Elymus elymoides
A. Arthur Heller
1916-6-6
Heller 12357
Colusa
Coast range on the grade about 3 miles west of Leesville in the oak and digger pine belt on open gravelly slopes. Scrub oak, Heteromeles, & Toxicodendron are common shrubs.
Comment
UC1055953
Elymus elymoides subsp. elymoides
Helen K. Sharsmith
1953-6-19
4267
Colusa
Red Bridge Camp Inner North Coast Ranges, Mendocino National Forest (near confluence of North and Middle Forks of Stoney Creek)
548
Comment
CHSC100289
Elymus glaucus
D. Isle
1988-4-13
1514
Colusa
Mendocino National Forest - North Coast Ranges. Middle Fork Stony Creek Watershed. Mellow-D Ranch meadow just north of 1st bad erosion channel in area burned during 1987 Fouts Fire.
731
Comment
CHSC91005
Elymus glaucus
D. Isle
2002-6-28
177
Colusa
Mendocino National Forest--North Coast Ranges. Little Stony Creek Watershed. Below 4x4 Rd. 17N31 (Lovelady Ridge Jeep Rd.).
1060
Comment
CHSC94527
Elymus glaucus subsp. glaucus
Lowell Ahart
2006-8-9
13136
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
347
Comment
JEPS75758
Elymus glaucus subsp. glaucus
L. R. Heckard and R. Bacigalupi
1976-9-6
4441
Colusa
just e Fouts Camp; Snow Mtn.
1859
Comment
UCR206350
Elymus glaucus var. glaucus
George K. Helmkamp, E. A. Helmkamp
2009-5-20
14743
Colusa
Central Inner Coast Ranges, along CA-16 near Bear Creek, 1.6 miles south of the junction with CA-20
320
Comment
CAS-BOT-BC228537
Elymus multisetus
A. A. Heller
1916-6-6
12357
Colusa
Grade about 3 miles west of Leesville
Comment
UCD62453
Elymus multisetus
A. A. Heller
1916-6-6
12357
Colusa
Grade about 3 miles west of Leesville.
Comment
UCD67001
Elymus multisetus
Craig D. Thomsen
2008-5-23
2738
Colusa
BLM Payne Ranch. 0.5 mile south of Hwy 20 (south of Destanella Flat), about 2.5 miles west of Hwy 16.
542
Comment
CDA15477
Elytrigia intermedia subsp. intermedia
G. F. Hrusa, T. D. Wilfred
1998-6-19
14614
Colusa
North Coast Ranges; Small colony on roadside and up into edge of Adenostoma/Quercus berberidifolia chaparral, above upper Little Stony Creek. Goat Mtn. Rd. ~ 1.5 km. W of of campground. Non-serpentine. Infestation in distinct clumps.
Comment
JEPS16205
Emmenanthe penduliflora
Rimo Bacigalupi and Arthur Holmgren
1950-4-26
3180
Colusa
Just west of base of the grade to Indian Valley (Bartlett Mt. Road), just west of Bear Valley, Inner North Coast Ranges
Comment
CDA40328
Emmenanthe penduliflora
D. Brown
1974-8-8
s.n.
Colusa
Mendocino National Forest, Stonyford.
0
Comment
SEINET8731329
Emmenanthe penduliflora
Helen K. Sharsmith
1953-1
4406
Colusa
Among Adenostoma chaparral, edge of road, Trough Springs Ridge, Mendocino National Forest
610
Comment
UCD63620
Emmenanthe penduliflora
Craig D. Thomsen
2000-6-12
2370
Colusa
BLM Payne Ranch. Southwest of intersection of Hwy 16 and Hwy 20. Between Cache Creek Ridge and Brophy Canyon, about 5 miles south of Hwy 20 and 1.5 miles west of Hwy 16.
321
Comment
JEPS110405
Epilobium brachycarpum
Lowell Ahart
2006-8-22
13218
Colusa
South side of Stony Creek, about 100 yards west of the bridge across Stony Creek, just north of Stonyford
349
Comment
UCD105289
Epilobium brachycarpum
C. F. Dunshee
1922-7-28
22
Colusa
Cortina.
Comment
UCD66863
Epilobium campestre
Ellen Dean; G. Harrington, J. Alderson, E. Bayon, R. Willmarth
2008-6-8
5066
Colusa
BLM Payne Ranch. Lands to the southwest of the intersection of Hwy 16 and Hwy 20. Northwest corner of ranch. Along ridge trail on the border of Lake and Colusa counties. East side of trail around stock pond.
609
Comment
UCD66925
Epilobium campestre
Craig D. Thomsen; G. Harrington
2008-7-6
2786
Colusa
BLM Payne Ranch. Lands to the SW of the jct of Hwys 20 and 16. Western side of ranch, near ridge trail that follows the border of Colusa/Lake Counties. Dunsfield Flat stock pond.
609
Comment
UCD81239
Epilobium canum
Ellen Dean; G. Harrington, R. Willmarth, B. Rice, and C. Thomson
2009-4-8
5403
Colusa
BLM Bear Creek (Payne) Ranch. Lands to the SW of the intersection of Hwys. 16 and 20. Just west of the mouth of canyon (inside the canyon) that is located south of Brophy Canyon.
266
Comment
JEPS75865
Epilobium canum subsp. latifolium
L. R. Heckard
1974-9-10
3883
Colusa
base of rocky cliff along spur running se from west peak; Snow Mt., East Circle Trail
2011
Comment
JEPS80785
Epilobium ciliatum subsp. ciliatum
L. R. Heckard and J. C. Hickman
1981-7-30
5758
Colusa
se side of mt. Snow Mt., Trout Creek
1600
Comment
JEPS75845
Epilobium ciliatum subsp. glandulosum
L. R. Heckard
1974-9-10
3912
Colusa
seep-stream area on ne slope of peak Snow Mt.. West Peak
2011
Comment
RSA724966
Epilobium ciliatum subsp. glandulosum
L. Ahart
2006-8-9
13139
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
348
Comment Read comments Aug 9 2017
JEPS120710
Epilobium densiflorum
Lowell Ahart
2013-10-1
19102
Colusa
Strand of East Park Reservoir, about 2.5 air miles SE of Stonyford, about 2.5 miles NW of Lodoga, about 10 air miles NW of Sites.
Comment
JEPS120978
Epilobium minutum
Lowell Ahart, John Dittes, Josephine Guardino
2013-4-26
18649
Colusa
On N side of Hwy 20, just E of Lake County Line, 12.2 air miles ENE of town of Clear Lake, 17.1 air miles W of Williams.
Comment
POM256523
Epilobium minutum
E. K. Crum
1938-5-8
2026
Colusa
3 miles north of Leesville.
Comment
JEPS74982
Epilobium nivium
L. R. Heckard
1974-9-11
3955
Colusa
w parking area near Summit Springs (sw slope of mt.); Snow Mt.
1706
Comment
UCSB4278
Epilobium torreyi
Keator, Glenn
1958-6-17
Colusa
Not far from Bartlett Springs in the foothills
Comment
CHSC106240
Epipactis gigantea
B. Castro; L. P. Janeway
2001-6-3
1257
Colusa
Inner North Coast Ranges. Spring at Grapevine flat, on top of Walker Ridge about 0.5 mi E of Baldy Mountain. East-facing slope/bench with large springy/meadowy area. At upper edges of meadow.
880
Comment
CAS-BOT-BC58046
Equisetum
Roxana Stinchfield
1916-7-11
430
Colusa
Sycamore Slough Road.
Comment
CHSC94512
Equisetum laevigatum
Lowell Ahart
2006-8-22
13210
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
347
Comment
JEPS110233
Equisetum laevigatum
Lowell Ahart
2006-8-22
13210
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford
347
Comment
CAS-BOT-BC213552
Eragrostis hypnoides
Roxana Stinchfield
1916-7-8
383
Colusa
In bed of Sycamore Slough.
Comment
SD262162
Eragrostis hypnoides
David Isle, Rhonda Isle
2014-9-27
2143
Colusa
Sacramento Valley Foothills: west side East Park Reservoir, 0.3 mile south of boatlaunch. Drying lake bed, c 100 yds east of normal lake edge.
49
Comment
UCD63437
Eragrostis minor
Tom Aldrich
1968-5-28
Colusa
College City area.
Comment
JEPS110406
Eragrostis pectinacea var. pectinacea
Lowell Ahart
2006-8-22
13206
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford
347
Comment
UCR261669
Eriastrum abramsii
Ann Howald
2003-5-29
2343
Colusa
Inner North Coast Ranges, Indian Valley, east side of East Park Reservoir, c. 3.7 miles north of Lodoga, near Chisolm Cove Group Campground
378
Comment Read comments Dec 15 2016
UCD82570
Eriastrum tracyi
Tom Zavortink; Gordon Harrington
2009-5-25
s. n.
Colusa
East side and downslopte of Walker Ridge Road just NE of Til Jones Spring.
779
Comment
CHSC35579
Ericameria linearifolia
J. P. Smith; Tom Nelson, Jane Nelson
1978-4-1
9527
Colusa
Walker Ridge road, 3.2 miles from its junction with State Route 20.
Comment
CHSC89854
Ericameria linearifolia
B. Castro; L. P. Janeway
2001-4-18
1238
Colusa
Vicinity of Grapevine Creek, Sites-Lodoga Road, and Scotties Spring. On edges of low terrace just above riparian corridor paralleling dirt road, adjacent to perennial N-S-trending creek.
268
Comment
RSA589927
Ericameria linearifolia
Michael A. Vincent, Robert Rhode
1996-3-30
7310
Colusa
Along Walker Ridge Road, 11.5 miles S of junction with Brim Road
Comment
SEINET4208167
Ericameria linearifolia
Richard R. Halse
2013-3-26
8742
Colusa
Along the Leesville-Logoda Road ca. 5.5 miles south of Logoda, or 3.2 miles north of the junction of the Leesville and Bear Valley Roads; Indian Valley.; 0
426
Comment
UCR80265
Ericameria linearifolia
J. P. Smith, Thomas Nelson, Jane Nelson
1978-4-1
9527
Colusa
Walker Ridge Road, 3.2 mi. from its junction with State Route 20.
Comment
UCD131766
Erigeron canadensis
P. B. Kennedy
30-31 May 1922
s.n.
Colusa
near Cortina.
Comment
UCD84636
Erigeron greenei
G. Harrington
2009-7-7
84
Colusa
Walker Ridge. Along Walker Ridge Road. Til Jones spring area on W side of road. Ca 6.5 road miles N of junction with Hwy 20. W side of road.
833
Comment
CHSC92605
Erigeron inornatus var. inornatus
D. Isle
2005-8-2
1159
Colusa
Mendocino National Forest--North Coast Ranges. Middle Fork Stony Creek Watershed. West end of Board Camp Ridge.
1554
Comment
CAS-BOT-BC216004
Eriodictyon californicum
L. Constance
1939-5-14
2488
Colusa
Above Middle Fork of Stony Creek 2.5 miles east of Bonnie View, Inner North Coast Ranges
518
Comment
POM257160
Eriodictyon californicum
Lincoln Constance
1939-5-14
2488
Colusa
Above Middle Fork of Stony creek 2.5 miles E of Bonnie View, Inner N Coast Ranges
518
Comment
RSA23083
Eriodictyon californicum
Lincoln Constance
1939-5-14
2488
Colusa
Above Middle Fork of Stony creek 2.5 miles E of Bonnie View, Inner N Coast Ranges
518
Comment
UC624291
Eriodictyon californicum
L. Constance
1939-5-14
2488
Colusa
2.5 mi e of Bonnie View (above Middle Fork of Stony Creek, Inner North Coast Ranges); Inner North Coast Ranges
518
Comment
CDA15553
Eriogonum dasyanthemum
G. F. Hrusa
1998-10-28
14904
Colusa
North Coast Ranges; Summit of Walker Ridge.
Comment
HSC94132
Eriogonum dasyanthemum
G. Fred Hrusa
1998-10-28
14904
Colusa
Along summit of Walker Ridge
900
Comment
POM279914
Eriogonum dasyanthemum
Lyman Benson
1933-6-26
4489
Colusa
Abbott mine.
549
Comment
UCD163236
Eriogonum dasyanthemum
Craig D. Thomsen
2000-6-7
2362
Colusa
Bear Creek Botanical Management Area. CalTrans right-of-way along Hwy 20 (south side), about 1 mile west of Hwy 20/16 intersection.
345
Comment
UCD63122
Eriogonum dasyanthemum
Ellen Dean; G. Harrington, C. Thomsen, S. Harrison
2008-5-18
4952
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwys 20 and 16. Unnamed drainage south of Hwy 20 between Hwy 16 and Lynch Canyon that drains to Bear Creek by passing under Hwy 20.
405
Comment
UCD66538
Eriogonum dasyanthemum
Craig D. Thomsen
2001-5-24
2498
Colusa
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.
325
Comment
UCD82736
Eriogonum dasyanthemum
Craig Thomsen; G. Harrington
2009-5-14
2917
Colusa
Colusa County on Walker Ridge: south of spur road about 1/2 mile east of Walker Ridge Road, en route to Eaton Springs.
762
Comment
UCR228281
Eriogonum dasyanthemum
Ellen Dean, Gordon Harrington, Craig D. Thomsen, S. Harrison
2008-5-18
4952
Colusa
Payne Ranch, owned by BLM, lands to the southwest of the intersection of Hwys 20 and 16. Unnamed drainage south of Hwy 20 between Hwy 16 and Lynch Canyon that drains to Bear Creek by passing under Hwy 20
402
Comment
UCR263625
Eriogonum dasyanthemum
Lowell Ahart
2006-6-11
12680
Colusa
east side of an off road trail (Trail 30), c. 100 yards south of Fouts Road, c. 5 road miles west of Stonyford
613
Comment
JEPS57028
Eriogonum dasyanthemum
W. L. Jepson
1934-7-28
16749
Colusa
hills se of Cortina Valley
Comment
CAS-BOT-BC270977
Eriogonum nervulosum
Roger Raiche
1985-7-27
50667
Colusa
W of Lodoga, Goat Mt. Rd. area, headwaters of Frenzel Creek
707
Comment
JEPS80338
Eriogonum nervulosum
L. Heckard
1982-7-6
5951
Colusa
West Peak ridge, Snow Mt. Snow Mt.
2103
Comment
CDA15552
Eriogonum nudum var. nudum
G. F. Hrusa
1998-10-28
14903
Colusa
North Coast Ranges; Cedar Camp Rd. as it enters Little Stony Ck. Cyn., approx. 1 mi. from Lodoga/Stonyford Rd.
Comment
IRVC29687
Eriogonum nudum var. pubiflorum
Mark A. Elvin, Mark S. Brunell, David Isle
2006-8-3
5031
Colusa
Snow Mtn; Summit Spring Trail; 1.4km W of Snow Mtn West summit; 800m N of Cedar Camp. Southern Northern Inner Coast Ranges
1989
Comment
CDA1339
Eriogonum umbellatum var. bahiiforme
D. Isle
2005-8-1
1155
Colusa
1/3 mi S of Goat Mountain Lookout.
Comment
JEPS73454
Eriogonum umbellatum var. bahiiforme
L. R. Heckard
1972-7-8
3054
Colusa
n side of ridge running se Snow Mt., West Peak
1981
Comment
JEPS75864
Eriogonum umbellatum var. bahiiforme
L. R. Heckard
1974-9-10
3884
Colusa
base of rocky cliff along spur running se West Peak (East Circle Trail); Snow Mt.
2011
Comment
UCR261723
Eriogonum umbellatum var. smallianum
Ann Howald
2003-5-30
2357 B
Colusa
Inner North Coast Ranges, Indian Valley, east side of East Park Reservoir, peninsula c. 2 miles north of Lodoga, Big Boot camping area
365
Comment
HSC39241
Eriophyllum lanatum
J. P. Smith, Thomas W. Nelson
1976-4-14
8578
Colusa
Mendocino National Forest, confluence of Stony Creek and N Fork of Stony Creek.
427
Comment
SBBG83236
Eriophyllum lanatum
L. F. LaPre
1986-5-30
Colusa
1.5 mi W of Mendocino Nat Forest boundary on Stony Crk Rd; T18N, R7W, S34
670
Comment
UCR44912
Eriophyllum lanatum
L. F. LaPre
1986-5-30
s.n.
Colusa
Stony Creek Rd, 2.2 mi. west of Mendocino National Forest boundary, NE of Clear Lake
678
Comment
RSA755891
Eriophyllum lanatum var. achilleoides
George K. Helmkamp, E. A. Helmkamp
2009-5-20
14755
Colusa
Along CA-16, 1.8 miles north of the Yolo County line
271
Comment
UC1484434
Eriophyllum lanatum var. achilleoides
Dale E. Johnson with J. E. Eckenwalder
1974-6-2
128
Colusa
On ridge connecting East and West peaks of Snow Mt.
1999
Comment
UCR206381
Eriophyllum lanatum var. achilleoides
George K. Helmkamp, E. A. Helmkamp
2009-5-20
14755
Colusa
Inner North Coast Ranges, along CA-16, 1.8 miles north of the Yolo County line
271
Comment
JEPS34737
Eriophyllum lanatum var. achilleoides
W. L. Jepson
1938-6-9
18962
Colusa
mountains between Indian Valley, Lake County, and Bear Valley, Colusa County (Complexion Canyon, hillslope); Complexion Canyon
579
Comment
UCD70239
Eriophyllum lanatum var. arachnoideum
D. Sanchez-Mata
1998-7-9
s.n.
Colusa
Bear Valley. Bear Valley Road. Bear Valley Creek.
450
Comment
CAS-BOT-BC301384
Eriophyllum lanatum var. grandiflorum
Roxana S. Ferris
1917-4-18
587
Colusa
5 mi west of Arbuckle, Arbuckle - Rumsey Road
Comment
POM163461
Eriophyllum lanatum var. grandiflorum
Roxana S. Ferris
1926-4-23
6411
Colusa
Grade beyond the Mountain House on the Williams-Stonyford Road.
Comment
UCD38807
Eriophyllum lanatum var. grandiflorum
Beecher Crampton
1958-5-19
4813
Colusa
Little Stony Creek canyon, west of Ladoga.
Comment
CHSC62894
Erodium botrys
Vernon H. Oswald
1994-3-14
5992
Colusa
Sacramento National Wildlife Refuge. Refuge located ca. 7 mi S of Willows, in the parking area in the NE corner of Tract 41.
25
Comment
UCD64269
Erodium cicutarium
Craig D. Thomsen
2000-3-31
2066
Colusa
Bear Creek Botanical Management Area. On Caltrans right-of-way, south side of Hwy 20, 0.25 mile west of Hwy 20/16 instersection, Colusa Co. milepost 3.00.
310
Comment
UC73462
Erodium macrophyllum
Miss M. Alice King
1905-1
Colusa
near College City; Sacramento Valley
Comment
UC1487274
Eryngium aristulatum var. aristulatum
Yusuf Sheikh and Lincoln Constance
1973-5-12
542
Colusa
s. Leesville (on Bear Valley Rd. toward Clear Lake, 1 mi. s. of Brim Rd., 13.3 mi. n. of State Hwy. 20)
Comment
UC660108
Eryngium aristulatum var. aristulatum
Milo S. Baker
1941-7-8
10110
Colusa
s. Stony Ford (Valley along Bear Creek); Valley along Bear Creek
Comment
UCD58163
Eryngium aristulatum var. aristulatum
Gordon Harrington
2007-6-29
70
Colusa
BLM Payne Ranch. Just west of the Hwy 20-Hwy 16 intersection, about 300 feet uphill to the west of the corral.
326
Comment
UCD38844
Eryngium castrense
Beecher Crampton
1958-6-26
4976
Colusa
along Grieve road, just northeast Hershey R.R. siding, 5.5 miles south of College City.
Comment
CAS-BOT-BC40752
Erysimum capitatum
Roxana S. Ferris
1926-4-23
6409
Colusa
In grade beyond Mountain House on the Williams-Stonyford Road.
Comment
CHSC97866
Erysimum capitatum
T. C. Fuller; G. D. Barbe
1986-3-6
4260
Colusa
Leesville Grade west of Williams.
Comment
CAS-BOT-BC40753
Erysimum capitatum
G. B. Rossbach; R. P. Rossbach
1938-5-31
851
Colusa
About 18 miles west of Williams.
Comment
SEINET12011565
Erysimum capitatum
Unknown
1998-4-17
10
Colusa
Bear Valley, Leesville-Lodoga Rd, 2 road mi NE from Bear Vally Rd-Leesville-Lodoga Rd junction
Comment
POM143091
Erysimum capitatum var. capitatum
Roxana S. Ferris
1917-4-14
576
Colusa
7 miles W of Arbuckle, Arbuckle - Rumsey Road
Comment
RSA590193
Erysimum capitatum var. capitatum
Michael A. Vincent, Robert M. Rhode
1996-3-30
7287
Colusa
Along Bear Valley Rd. above Bear Creek, 0.6 mi. N jct. Wilbur Springs Rd.
Comment
JEPS120998
Erysimum cheiranthoides
Lowell Ahart
2013-5-1
18665
Colusa
On the E side of Bear Valley Road, about 2.5 road miles NW of intersection of Hwy 20 and Bear Valley Road.
Comment
CHSC1751
Erythranthe bicolor
L. Oliver
1935-5-3
Colusa
Comment
CHSC94464
Erythranthe floribunda
Lowell Ahart
2006-8-9
13151
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
347
Comment
CHSC80446
Erythranthe latidens
Caroline Warren; Jenny Marr
1998-5-4
Colusa
Vicinity of Sites and Stone Corral Creek.
91
Comment
CHSC106250
Erythranthe microphylla
B. Castro; L. P. Janeway
2001-6-3
1254
Colusa
Inner North Coast Ranges. Spring near head of Doyle Canyon on east side of Walker Ridge, about 1.7 mi (air) south of Bartlett Springs Road.
798
Comment
CHSC35129
Erythranthe microphylla
K. R. Stern
1980-5-5
6628
Colusa
South central border area of Colusa National Wildlife Refuge.
45
Comment
CHSC84196
Erythranthe microphylla
Lowell Ahart
2003-7-14
10383
Colusa
Along a stream, field on the south side of Highway 20, about 2 miles southwest of the intersection of Highway 20 and Bear Valley Road, about 21 miles (by road) southwest of Williams.
520
Comment
CHSC94638
Erythranthe nudata
Lowell Ahart
2006-6-11
12663
Colusa
On the east side of an off road trail (Trail 30), about 100 yards south of Fouts Road, about 5 miles (by road) west of Stonyford.
613
Comment
CHSC86121
Eschscholzia caespitosa
Jenny Marr; Caroline Warren
1998-5-4
Colusa
Vicinity of Sites, Stone Corral Creek, and Antelope Valley.
121
Comment
HSC62925
Eschscholzia caespitosa
Marla J. Carollo
1979-4-14
36
Colusa
Bear Valley Rd., 3.9 mi. N of Hwy. 20
412
Comment
RSA293185
Eschscholzia caespitosa subsp. caespitosa
J. P. Smith, Tom Nelson, Jane Nelson
1978-4-2
9560
Colusa
Bear Valley Road, 2.1 miles from its junction with State Route 20.
366
Comment
UCD57627
Eschscholzia californica
Michele Lanctot; with Plant Biology 102
2007-4-29
3
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of State Routes 20 and 16. Central part of ranch. Thompson Canyon. Bottom of serpentine slope in the middle of the path.
356
Comment
UCD93924
Eschscholzia californica
D. Sanchez-Mata
1998-6-24
s.n.
Colusa
Bear Valley. Bear Valley Road. Bear Valley Creek. Serpentine chaparral (Ceanotho albiflori-Quercetum duratae Sanchez-Mata, Barbour and Rodriguez in Rivas-Martinez 1997).
450
Comment
CAS-BOT-BC402976
Eschscholzia californica
A. A. Heller
1919-5-10
13115
Colusa
Valley west of Leesville
Comment
SEINET10871887
Eschscholzia californica
David B. Dunn, Katherine L. Morris; Melvin L. Conrad
1973-6-6
Dunn 381
Colusa
Chaparral woodland and sparse oaks; on hwy 20, .3 mi e of lake county line.
Comment
CAS-BOT-BC5880
Eschscholzia caruifolia
Mary Katherine (Mrs.) Brandegee
1889-4-1
s.n.
Colusa
Leesville
Comment
UC85498
Eschscholzia caruifolia
K. Brandegee
Apr 1889
Colusa
Colusa County. Near Leesville.
Comment
UCR206870
Eucalyptus camaldulensis
George K. Helmkamp, E. A. Helmkamp
2009-1-31
14319
Colusa
Sacramento Valley, Jameson Road 1.3 miles north of its junction with Lurline Road and south of Harbison Road, generally west of the city of Colusa
16
Comment
SEINET8523003
Eucalyptus globulus
Kelly W. Allred
2006-1
Colusa
Along I-5 south of Maxwell, road side rest stop
26
Comment
CHSC78673
Eucalyptus tereticornis
L. P. Janeway; B. Castro
2000-5-3
6701
Colusa
Sacramento Valley. Along Hwy 99W 0.2 km north of Wadleigh Road; about 3.2 km north of Maxwell.
25
Comment
CHSC64613
Euphorbia spathulata
Vernon H. Oswald; Margie McNairn
1995-4-23
6680
Colusa
Inner North Coast Ranges. Along a roadside ditch bordering Bear Valley Rd. s of Brim Rd. (Bartlett Springs Rd.), w of Williams.
417
Comment
CHSC79501
Euphorbia spathulata
B. Castro; L. P. Janeway
2000-5-2
1110
Colusa
Vicinity of Sites, Sites-Lodoga Rd, and Grapevine Creek.
234
Comment
JEPS94662
Euphorbia spathulata
Vernon Oswald and Lowell Ahart
1998-5-7
Colusa
Bartlett Springs Rd. 2.1 mi w Bear Valley Rd. (0.8 mi e of Sawtelle Valley and Grapevine Flat roads)
524
Comment
SEINET4673877
Euphorbia spathulata
Richard R. Halse
2013-3-27
8760
Colusa
Along State Hwy. 20 just east of the Colusa/Lake county Line, ca. 14.6 miles east of the junction of State Hwys. 20 and 53.; 0
558
Comment
SEINET5586425
Euphorbia spathulata
Richard R. Halse
2013-1
8760
Colusa
Along State Hwy. 20 just eat of the Colusa/Lake County Line, ca. 14.6 miles east of the junction of State Hwy. 20 and 53
558
Comment
UCD57049
Euphorbia spathulata
Gordon Harrington; Diana Hickson
2007-4-7
14
Colusa
BLM Payne Ranch, SW of intersection Hwy 16 and Hwy 20, 3/4 mile west of Roadkill Cafe.
499
Comment
UCD57284
Euphorbia spathulata
Ellen Dean; C. Thomsen, S. Bledsoe, J. Alderson, M. Starbuck
2007-4-7
3655
Colusa
BLM Payne Ranch. Craig Canyon. West of Hwy. 16, ca. 2 road miles south of junction of Hwy. 20 and Hwy. 16. Along unimproved road.
322
Comment
UCD58096
Euphorbia spathulata
Ellen Dean; C. Thomsen, S. Bledsoe, G. Harrington, D. Hickson
2007-3-25
3473
Colusa
BLM Payne Ranch. Lands to the southwest of the intersection of Hwy. 16 and Hwy. 20. Destinella Flat, just E of the Lake County Border. Ca. 3.4 miles along Hwy. 20 from junction of Hwy. 20 and Hwy. 16.
560
Comment
UCD64248
Euphorbia spathulata
Craig D. Thomsen
2000-3-31
2050
Colusa
Bear Creek Botanical Management Area. On Caltrans right-of-way, south side of Hwy 20, 0.25 mile west of Hwy 20/16 instersection, Colusa Co. milepost 3.00.
310
Comment
UCD64283
Euphorbia spathulata
Craig D. Thomsen
2000-3-31
2105
Colusa
Bear Creek Botanical Management Area. On Caltrans right-of-way, south side of Hwy 20, 0.25 mile west of Hwy 20/16 instersection, Colusa Co. milepost 3.00.
310
Comment
CDA35306
Euphorbia spathulata
Vernon H. Oswald & Lowell Ahart
1998-5-7
9002
Colusa
Bartlett Springs Road, 2.1 miles west of Bear Valley Road, 0.8 mile east of Sawtelle Valley and Grapevine Flat Roads.
Comment
UC71774
Euthamia occidentalis
H. P. Chandler
1905-9-14
Colusa
Princeton
Comment
UCD61475
Extriplex joaquinana
Ellen Dean; G. Harrington, N. Voegtly, J. Alderson, C. Thomsen
2007-6-24
3896
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwy 16 and Hwy 20. West of BLM equestrian parking lot (Cowboy Camp) on west side of Bear Creek. Approximately 1/4 mile SW of parking lot.
399
Comment
UCD66909
Extriplex joaquinana
Craig D. Thomsen
2008-4-27
s.n.
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwys 20 and 16. Southwest of Cowboy Camp on the west side of Bear Creek. Ridge to the north of spring box.
365
Comment
UCD82479
Extriplex joaquinana
Ellen Dean; Bob Schneider
2009-6-19
5779
Colusa
BLM Bear Creek (formerly Payne) Ranch. Lands to the SW of the junction of Hwys 16 and 20. Ridges opposite Cowboy Camp parking area on W side of Bear Creek.
394
Comment
CHSC110218
Festuca
David Isle
1990-5-6
1983
Colusa
Stony Creek watershed. Pendell Ranch abt 2 mi W of Co Rd 306 jct with Fouts springs Road; abt 150 yards south of Pendell home.
384
Comment
UC2016538
Festuca bromoides
Richard Olmstead
1984-4-29
530
Colusa
On slopes by Walker Ridge Road 2.4 mi N of Calif. 20. Road follows ridge that is Lake/Colusa Co. line.
Comment
JEPS81290
Festuca roemeri
L. R. Heckard and J. C. Hickman
1982-7-5
5902
Colusa
s of Summit Springs (s side of Snow Mt.); Snow Mt.
1500
Comment
CAS-BOT-BC63012
Frangula californica subsp. crassifolia
A. A. Heller
1916-6-6
12360
Colusa
Coast Range on the grade about 3 mi. w. of Leesville.
Comment
CAS-BOT-BC63013
Frangula californica subsp. crassifolia
A. A. Heller
1916-6-6
12360
Colusa
Coast Range on the grade about 3 mi. w. of Leesville.
Comment
LA207661
Frangula californica subsp. crassifolia
A. A. Heller;
1916-6-6
12359
Colusa
on grade ca 3 mi W of Leesville
Comment
UCD163874
Frangula californica subsp. tomentella
Craig D. Thomsen
2000-5-11
2395
Colusa
Bear Creek Botanical Management Area. Caltrans right-of-way on south side of Hwy 20, about 1 mile west of Hwy 20/16 instersection.
Comment
UCD83758
Frangula californica subsp. tomentella
Ellen Dean; G. Harrington, K. Mawdsley, J. Shepard
2010-5-1
5954
Colusa
Colusa County. Walker Ridge. Along Walker Ridge Road, Buck Flat.
875
Comment
CHSC52632
Frankenia salina
James Jokerst
1985-4-24
2495
Colusa
Near Lurline Creek.
41
Comment
CHSC88540
Frankenia salina
B. Castro; Aric Lester
2003-8-20
1442
Colusa
Vicinity of Sites, Antelope Valley, and Funks Creek. In mud flats at north end and along E edge of lake.
94
Comment
RSA123211
Frankenia salina
H. S. Yates
1936-8-14
6135
Colusa
3 miles S. of Colusa
15
Comment
CHSC76343
Fraxinus dipetala
L. P. Janeway; B. Castro
1999-7-5
6500
Colusa
Along Goat Mountain Road on south side of Little Stony Creek about 0.2 mi west of Trout Creek. Steep north facing shrubby slope.
530
Comment
UCD70234
Fraxinus dipetala
D. Sanchez-Mata
1998-6-24
s.n.
Colusa
Bear Valley. Bear Valley Road. Bear Valley Creek.
450
Comment
UCD58106
Fritillaria affinis
Ellen Dean; G. Harrington and P. McIntyre
2007-3-16
3353
Colusa
Payne Ranch. Along Hwy. 20, just E of Lake Co. border. Ca. 3 road miles west of juncture with Hwy. 16, ca. 0.4 road mile east of Destanella Flat. South side of road.
560
Comment
UCD139660
Fritillaria agrestis
S. W. Winter
1927-3-9
751
Colusa
Arbuckle.
Comment
CAS-BOT-BC130436
Fritillaria pluriflora
Barbara Sherfey
1962-3-1
s.n.
Colusa
At top of Arbuckle Grade between Arbuckle and Rumsey
Comment
CHSC26609
Fritillaria pluriflora
D. W. Isle
1978-3-3
1501
Colusa
Stonyford Cemetary Lane ca. 1.5 mi w of Stonyford, s of Fouts Springs Road.
365
Comment
JEPS42811
Fritillaria pluriflora
Wayne Roderick
1966-3-26
Colusa
1/2 mi e of Robbers Flat (adjacent to Bartlett Springs Road, Bear Valley); Bear Valley
417
Comment
UCD139703
Fritillaria pluriflora
Dora Hunt; Mas Yumaguchi, Doran Hughes
1965-3-8
s.n.
Colusa
ca. 1/8 mile south of Lodoga on road to Leesville.
Comment
UCD82525
Fritillaria pluriflora
Craig Thomsen; G. Harrington
2009-5-12
2882 a
Colusa
Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. East- facing hillslope above (west border) Eaton Springs meadow complex.
722
Comment
UCR261676
Fritillaria pluriflora
Ann Howald
2003-3-25
2283
Colusa
Inner North Coast Ranges, Indian Valley, west side of East Park Reservoir, c. 1.5 miles southeast of Stonyford, just south of cattle guard at entrance to recreation area
364
Comment
HSC59112
Fritillaria purdyi
Terry Roth
1979-4-14
10
Colusa
1067
Comment
UCSC010370
Galium andrewsii subsp. andrewsii
Dylan M. Neubauer, Tim Forsell
2016-3-30
594
Colusa
(NCoRI) Walker Ridge, Bartlett Springs Road, 1.22 air-miles sse Baldy Mountain
899
Comment
JEPS95487
Galium aparine
Vernon H. Oswald and L. Ahart
1994-4-6
6062
Colusa
T17N R7W SE1/4 SW1/4 Sec. 36, 1540 ft, Chaparral. Goat Mtn. Rd. at Sullivan Creek, 1.2 mi SW of Digger Pine Flat, S of Stonyford
469
Comment
UCD64437
Galium aparine
Craig D. Thomsen
2000-3-31
2070
Colusa
Bear Creek Botanical Management Area. On Caltrans right-of-way, south side of Hwy 20, 0.25 mile west of Hwy 20/16 instersection, Colusa Co. milepost 3.00.
310
Comment
UCD121724
Galium aparine
William Pyott
1962-4-28
23
Colusa
West of road in Bear Valley.
Comment
CHSC32201
Galium grayanum
James Jokerst
1980-8-8
1079
Colusa
North Coast Ranges. Near Snow Mountain (west).
Comment
JEPS75849
Galium grayanum var. nanum
L. R. Heckard
1974-9-10
3898
Colusa
top of East Peak Snow Mt.; , top of East Peak
2133
Comment
RSA133259
Galium grayanum var. nanum
Peter H. Raven, Richard Snow
1959-9-11
14411
Colusa
S shoulder of Snow Mtn.
2043
Comment
CHSC86129
Galium parisiense
Jenny Marr; Julie Cunningham, Heidi West, Caroline Warren
1998-5-27
Colusa
Vicinity of Antelope Valley, Antelope Creek, and Huffmaster Road.
137
Comment
JEPS110109
Galium parisiense
Lowell Ahart
2006-8-9
13149
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford
347
Comment
RSA725011
Galium parisiense
L. Ahart
2006-8-9
13149
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
348
Comment Read comments Aug 9 2017
UC1177932
Galium parisiense
Francia Chisaki and Gene B. Newcomb
1958-6-19
1134
Colusa
about 3 mi w Stonyford (along path leading to dam); Diversion Dam Camp
Comment
UC1229764
Galium parisiense
Francia Chisaki and Helen K. Sharsmith
1959-5-27
1334
Colusa
on road leading out of Red Bridge Camp Mill Creek Crossing
Comment
UCD64440
Galium parisiense
Craig D. Thomsen
2000-3-31
2080
Colusa
Bear Creek Botanical Management Area. On Caltrans right-of-way, south side of Hwy 20, 0.25 mile west of Hwy 20/16 instersection, Colusa Co. milepost 3.00.
310
Comment
UCD72471
Galium parisiense
Ellen Dean; J. Alderson, N. Voegtly, and C. Thomsen
2007-5-12
3805
Colusa
BLM Payne Ranch, lands to the SW of jct of Hwys 16 and 20. Area of ranch west of Hwy 16, near bridge that spans Bear Creek, ca. 4.5 road miles south of junction of Hwy 16/20. Bank of Bear Creek near north end of bridge, west side of creek.
260
Comment
UCD82120
Galium parisiense
Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth
2009-5-20
5648
Colusa
Walker Ridge. Along Walker Ridge Road, ca. 0.5 road mi N of intersection with road to Indian Valley Reservoir. Parking area, undeveloped roads, flats and slopes on W side of road.
839
Comment
UCD163913
Galium porrigens var. porrigens
Sara Martin
2016-4-9
5
Colusa
BLM Bear Creek Ranch (Previously Payne Ranch). Lands to the SW of jct of Hwys 16 and 20. Hill to the south of corral at junction of 16 and 20.
464
Comment
UCD81242
Galium porrigens var. tenue
Ellen Dean; G. Harrington, R. Willmarth, B. Rice, and C. Thomson
2009-4-8
5406
Colusa
BLM Bear Creek (Payne) Ranch. Lands to the SW of the intersection of Hwys. 16 and 20. Inside canyon that is located to the south of Brophy Canyon.
292
Comment
JEPS17975
Galium porrigens var. tenue
George B. Rossbach
1955-4-9
508
Colusa
Route 20; w edge of county
563
Comment
UCD121929
Galium tricornutum
Barrie Stanfield
1966-4-16
25
Colusa
4 miles north of Wilbur Springs.
Comment
CHSC48888
Galium trifidum var. pacificum
Vernon Oswald
1984-7-20
1615
Colusa
Lily Pond N of Letts Lake in Mendocino National Forest.
1280
Comment
CDA42204
Galium trifidum var. pacificum
G. D. Barbe, Daryl Brown
1982-7-2
3891
Colusa
Mill Valley Campground, Lower Letts Lake, Mendocino National Forest.
Comment
CAS-BOT-BC199030
Garrya congdonii
Roxana S. Ferris
1926-4-23
6456 a
Colusa
Rocky hills between Leesville and Stonyford, 4 mi. from Stonyford
Comment
CDA12374
Garrya congdonii
G. F. Hrusa
1996-1-2
12627
Colusa
Inner North Coast Ranges; N side of Little Stony Creek, about 2 miles W of intersection of Cedar Camp Rd. and Stonyford-Lodoga Rd.
Comment
CHSC22851
Garrya congdonii
Robert A. Schlising
1962-1-31
2031
Colusa
Coast Ranges. Along Stoney Creek.
441
Comment
CHSC39247
Garrya congdonii
B. A. Stein
1982-5-2
535
Colusa
South end of East park Reservoir.
Comment
SBBG34146
Garrya congdonii
R. D. Slayback
1959-3-20
2
Colusa
near St Hwy 16, 6 mi NW of Rumsey
Comment
UCD121090
Garrya congdonii
G. F. Hrusa
1996-1-23
12627
Colusa
N side of Little Stony Creek, about 2 miles W of intersection of Cedar Camp Rd. and Stonyford-Lodoga Rd. Inner North Coast Ranges.
475
Comment
UCD121096
Garrya congdonii
Robert D. Slayback
1959-3-20
2
Colusa
Near State Highway 16, 6 miles northwest of Rumsey.
Comment
UCD56678
Garrya congdonii
Jack Alderson
2007-3-25
14
Colusa
BLM Payne Ranch. Destinella Flat area, just E of the Lake County border, ca. 3.4 road miles along Hwy 20 from the junction of Hwy 16 and Hwy 20. South side of Hwy 20.
570
Comment
JEPS80433
Garrya fremontii
L. R. Heckard and R. Bacigalupi
1976-9-6
4421
Colusa
above Summit Springs (along trail to Fouts Camp, Lake-Colusa County boundary); Snow Mt.
1615
Comment
OBI14152
Garrya veatchii
Rimo Bacigalupi, G. T. Robbins
1954-6-25
4623
Colusa
1/2 mi E of summit (Lake-Colusa County line) on rd from Indian Valley (Lake County) to Bear Valley (Colusa County)
549
Comment
CDA5308
Gaura neomexicana
Kingwill
Jun 1944
Colusa
0
Comment
JEPS80183
Gayophytum humile
L. R. Heckard with J. Hickman
1980-7-3
5335
Colusa
just w Summit Springs (sw Snow Mt., ca 10 mi w of Stonyford, Colusa-Lake County boundary); Snow Mt.
1548
Comment
JEPS81279
Geranium carolinianum
L. R. Heckard and J. C. Hickman
1982-7-5
5890
Colusa
s of (slope below) Summit Springs (s side of Snow Mt.); Snow Mt.
1500
Comment
UCD103294
Geranium carolinianum
Beecher Crampton
1958-5-19
4806
Colusa
west of Lodoga, Little Stony Creek Canyon.
Comment
UCD164160
Geranium dissectum
Craig Thomsen
2000-4-28
2268
Colusa
Between Bear Creek and Bear Valley Rd. about 0.3 mile north of junction with Hwy 20.
Comment
UCD82816
Geranium dissectum
Craig Thomsen; G. Harrington
2009-5-12
2890
Colusa
Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd.
707
Comment
UCD57289
Geranium molle
Ellen Dean; C. Thomsen, S. Bledsoe, J. Alderson, M. Starbuck
2007-4-7
3660
Colusa
BLM Payne Ranch. Craig Canyon. West of Hwy. 16, ca. 2 road miles south of junction of Hwy. 20 and Hwy. 16. Along unimproved road.
322
Comment
CHSC75627
Geum macrophyllum
Vernon H. Oswald; Lowell Ahart
1999-6-22
9781
Colusa
Lily Pond near Upper Letts Lake west of Stonyford. Along the edge of the meadow at Lily Pond.
1243
Comment
UC1614445
Gilia
Charles M. Belshaw
1937-4-25
2834
Colusa
vicinity Cook's Spring (Devil's Ridge); Inner North Coast Range, Devil's Ridge
Comment
UC1613521
Gilia capitata
Charles M. Belshaw
1937-4-25
2853
Colusa
Inner North Coast Range. Vicinity of Cook's Spring, Devil's Ridge.
Comment
UCD82541
Gilia capitata
Ellen Dean; G. Harrington, C. Thomsen,R. Wilmarth,Chiao-Yi Cheng
2009-5-20
5697
Colusa
Walker Ridge. Til Jones Spring area along Walker Ridge Road.
833
Comment
UC1585898
Gilia capitata subsp. abrotanifolia
Barbara Ertter
1989-7-1
8601
Colusa
road to Goat Mt. Lookout 2.2 mi s Rt M-10 (Bear Creek-Fouts Spring Rd) (ca 12 mi wsw of Stonyford, sw side of ridge, at head of creek); S. Fk. Stony Creek
1500
Comment
HSC45794
Gilia tricolor
J. P. Smith, Thomas W. Nelson
1976-4-14
8581
Colusa
Mendocino National Forest, confluence of Stony Creek and N Fork of Stony Creek.
427
Comment
HSC66136
Gilia tricolor
S. Harris, B. Ferguson, M. Moble, M. Smith
1980-4-19
Colusa
Bartlett Springs Rd.
Comment
SEINET12326985
Gilia tricolor
Unknown
1984-1
7
Colusa
ca 0.5 km W of jct of Hwys 20 and 16, S side of Bear Creek, ca 29 SW of Williams
322
Comment
UCD15437
Gilia tricolor
Lisa Montang
1985-4-13
5
Colusa
California, Colusa Co.; Bear Valley, 8.6 miles north of Wilbur Springs Road and Highway 20 intersection;
390
Comment
UCD82339
Gilia tricolor
Robin McMaster
1973-4-15
325
Colusa
Bear Valley.
Comment
JEPS121110
Gilia tricolor subsp. diffusa
Lowell Ahart
2013-5-1
18684
Colusa
N of the wash and Hwy 20, just E of Lake County line, 12.2 air miles ENE of the town of Clear Lake, 17.1 air miles W of Williams.
Comment
UC1051502
Githopsis diffusa subsp. robusta
Helen K. Sharsmith
1953-6-19
4283
Colusa
near Trough Springs (on Trough Springs Ridge); Inner North Coast Ranges, Mendocino National Forest
975
Comment
HSC47647
Githopsis specularioides
J. P. Smith, J. O. Sawyer
1978-4-29
9789
Colusa
Just W of Walker Ridge Rd. intersection with Bartlett Springs Rd.
Comment
UCD72440
Githopsis specularioides
Kim E. Steiner
1978-4-29
196
Colusa
Walker Ridge Road; 1.5 miles N of State Hwy 20.
777
Comment
RSA523935
Glinus lotoides
Barbara Ertter, E. Neese, Laura Fujii, Dawn Espindola
1989-10-21
8871
Colusa
SE end of East Park Reservoir N of Lodoga.
366
Comment
UCD63039
Glycyrrhiza lepidota
Ellen Dean; Marjorie Phan and Gerald Dickinson
2008-4-27
4885
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwys 20 and 16. Meadow close to Bear Creek in uplands.
376
Comment
UCD72477
Glycyrrhiza lepidota
Ellen Dean; J. Alderson, N. Voegtly, and C. Thomsen
2007-5-12
3811
Colusa
BLM Payne Ranch, lands to the SW of jct of Hwys 16 and 20. Area of ranch west of Hwy 16, near bridge that spans Bear Creek, ca. 4.5 road miles south of junction of Hwy 16/20. West side of Bear Creek, across from BLM parking lot that is located at south end of bridge.
249
Comment
RSA724829
Grindelia camporum
L. Ahart
2006-9-26
13345
Colusa
Between the deep ditch and the Delevan National Wildlife Refuge, north side of Maxwell Road, about 3 miles west of Colusa Princeton Road, about 5.5 miles east of Maxwell.
24
Comment
CAS-BOT-BC305304
Grindelia hirsutula
Roxana Stinchfield
1916-7-11
455
Colusa
Colusa--Williams Road at the trough
Comment
UCD146597
Grindelia hirsutula
G. F. Hrusa
1998-6-19
14598
Colusa
Inner North Coast Ranges. Along Little Stony Creek, on Goat Mountain Road. Around 1.2 km west of intersection with Lodoga-Stonford Road.
400
Comment
RSA0016943
Grindelia hirsutula var. davyi
C. B. Wolf
1928-5-8
2126
Colusa
3 miles S of Arbuckle, Pacific Hwy.
Comment
JEPS80118
Hackelia amethystina
L. R. Heckard with J. Hickman
1980-7-1
5275
Colusa
n side of East Peak; Snow Mountain
2072
Comment
CHSC91036
Hackelia micrantha
D. Isle
2003-6-25
378
Colusa
Mendocino National Forest--North Coast Ranges. Little Stony Creek Watershed. GPS: 10S 0524627E 4345811N.
1731
Comment
UCD85141
Hainardia cylindrica
Beecher Crampton
1953-4-29
1143 A
Colusa
Colusa County, 2 miles east of Maxwell.
Comment
UCD85147
Hainardia cylindrica
Beecher Crampton
1958-5-19
4795
Colusa
10.1 miles southeast of Leesville, foothill area.
Comment
JEPS117118
Harmonia hallii
Peter Warner
2010-5-16
155
Colusa
Walker Ridge Rd., ~ 8.3 km N of jct. with Hwy. 20; ~ 1 km N of jct. w/ Indian Valley Reservoir Rd., at road-cut, both sides and adjacent slopes
Comment
JEPS94706
Harmonia hallii
Vernon Oswald and Lowell Ahart
1998-5-7
9012
Colusa
Bartlett Springs Road 2.8 mi w of Bear Valley Road (0.1 mi e of Sawtelle Vallyy and Grapevine Flat Roads); Bartlett Springs Road
633
Comment
UCD82590
Harmonia hallii
Craig D. Thomsen; J. Wiegand, S. Harrison, G. Harrington, A. Fulks
2008-4-22
2735
Colusa
Walker Ridge. About 3.2 mi N of Hwy 20, adjacent to abandoned road leading back to Walker Ridge Rd. from 'Oak Cove.
822
Comment
CDA34807
Harmonia hallii
Peter Warner
2010-5-16
155
Colusa
Walker Ridge Road, ~8.3 km N of jct. with Hwy. 20, ~1 km N of jct with Indian Valley Reservoir Rd., at road cut, both sides and adjacent slopes.
Comment
CHSC32204
Hazardia whitneyi var. discoidea
James Jokerst
1980-8-7
1068
Colusa
North Coast Ranges. Near Snow Mountain (west).
Comment
UCD64431
Helianthus annuus
Craig D. Thomsen
2000-6-23
2428
Colusa
Bear Creek Botanical Management Area. On Caltrans right-of-way, south side of Hwy 20, 0.25 mile west of Hwy 20/16 instersection, Colusa Co. milepost 3.00.
310
Comment
CDA15546
Helianthus bolanderi
G. F. Hrusa
1998-10-28
14897
Colusa
North Coast Ranges; along Cedar Camp Rd. as it enters Little Stony Ck. Cyn., approx. 1/2 mi. from Lodoga/Stonyford Rd.
Comment
CHSC94313
Helianthus bolanderi
Lowell Ahart
2006-8-9
13097
Colusa
Gravel bar on the south side of Stony Creek, at Mine Camp, about 3 1/2 miles (air) west of Stonyford.
455
Comment
UCD61452
Helianthus bolanderi
Ellen Dean; G. Harrington, N. Voegtly, J. Alderson, C. Thomsen
2007-6-24
3897
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwy 16 and Hwy 20. West of BLM equestrian parking lot (Cowboy Camp) on west side of Bear Creek. Approximately 1/2 mile SW of parking lot. North of Eula Canyon.
420
Comment
RSA7606
Helianthus bolanderi
C. B. Wolf
1955-6-25
5505
Colusa
West side of Bear Valley, near mitchell Ranch House. Inner north coast Range. Upper Sonoran Digger River
305
Comment
CHSC84973
Heliotropium curassavicum
Lowell Ahart
2003-10-23
10663
Colusa
On the east strand of East Park Reservoir, about 1/8 mile northwest of Sites Lodoga Road, about 1 mile north of Lodoga, about 21 miles west of Maxwell.
368
Comment
CHSC89839
Heliotropium curassavicum
B. Castro; L. Janeway
2001-5-10
1250 A
Colusa
Vicinity of Grapevine Creek, Antelope Creek, and Pence Mtn. At side of dirt road paralleling N-S-trending perennial creek.
381
Comment
JEPS80141
Hemizonella minima
L. R. Heckard with J. Hickman
1980-7-2
5301
Colusa
trail from Summit Springs to Snow Mt. Peaks (ca 10 mi w of Stonyford, Colusa-Lake County border)
1661
Comment
UCD82509
Hemizonia
Craig Thomsen; G. Harrington
2009-5-12
2867 b
Colusa
Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd.
710
Comment
CHSC61405
Hemizonia congesta subsp. luzulifolia
Vernon H. Oswald
1993-8-16
5808
Colusa
Sacramento National Wildlife Refuge. Refuge located ca. 7 mi S of Willows, N end of E edge of Tract 41. Also in the south portion of the refuge.
25
Comment
UCD159329
Hemizonia congesta subsp. luzulifolia
D. S. Park
2010-6-5
113
Colusa
Colusa County.: Walker ridge, Cold Spring Mt. roadside, grassland.
781
Comment
UCD160070
Hemizonia congesta subsp. luzulifolia
Ellen Dean; Craig Thomsen and Davis Botanical Society
2015-4-25
8629
Colusa
Bear Creek Ranch (previously Payne Ranch) at intersection of highways 16 and 20. Lynch Canyon near 'Bullfrog Pond.
384
Comment
UCD61435
Hemizonia congesta subsp. luzulifolia
Ellen Dean; G. Harrington, N. Voegtly, J. Alderson, C. Thomsen
2007-6-24
3880
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwy 16 and Hwy 20. West of BLM equestrian parking lot (Cowboy Camp) on west side of Bear Creek. Approximately 1000 ft NNW of parking lot.
314
Comment
UCD61455
Hemizonia congesta subsp. luzulifolia
Ellen Dean; G. Harrington, N. Voegtly, J. Alderson, C. Thomsen
2007-6-24
3901
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwy 16 and Hwy 20. West of BLM equestrian parking lot (Cowboy Camp) on west side of Bear Creek. Just north of the headwaters of Eula Canyon.
339
Comment
UCD72483
Hemizonia congesta subsp. luzulifolia
Ellen Dean; J. Alderson, N. Voegtly, and C. Thomsen
2007-5-12
3817
Colusa
BLM Payne Ranch, lands to the SW of jct of Hwys 16 and 20. Area of ranch west of Hwy 16, near bridge that spans Bear Creek, ca. 4.5 road miles south of junction of Hwy 16/20. West side of Bear Creek, along trail that beings approximately across from BLM parking lot, located at south end of bridge.
256
Comment
CAS-BOT-BC309737
Hemizonia congesta subsp. luzulifolia
A. A. Heller
1939-10-1
15482
Colusa
Between Williams and Maxwell
Comment
CHSC79460
Hesperevax acaulis var. acaulis
B. Castro; L. P. Janeway
2000-5-2
1107
Colusa
Vicinity of Sites, Sites-Lodoga Rd, and Grapevine Creek.
237
Comment
CHSC76742
Hesperevax caulescens
J. Marr; H. West, C. Warren
1998-4-14
Colusa
NW of town of Sites, vicinity of Grapevine and Stone Corral Creeks.
158
Comment
CHSC79845
Hesperocnide tenella
B. Castro; L. P. Janeway
2000-5-4
1129
Colusa
Vicinity of Sites, Sites-Lodoga Rd, and Grapevine Creek.
246
Comment
UCSC010368
Hesperocyparis macnabiana
Dylan M. Neubauer, Tim Forsell
2016-3-30
592
Colusa
(NCoRI) Walker Ridge, Bartlett Springs Road, 1.22 air-miles sse Baldy Mountain
899
Comment
CHSC48598
Hesperolinon californicum
Vernon Oswald
1986-5-12
2010
Colusa
Brim Rd. (Bartlett Springs Rd.) 2.1 mi w of Bear Valley Rd. Common in a grassy opening on a serpentine slope.
487
Comment
JEPS122888
Hesperolinon californicum
Adam C. Schneider with Will Freyman and Yuri P. Springer
2014-5-20
642
Colusa
Along north side of Brim Rd east of Indian Valley Reservoir, near Colusa/Lake Co line.
Comment
JEPS94735
Hesperolinon californicum
Vernon H. Oswald and Lowell Ahart
1998-7-15
9269
Colusa
Bartlett Springs Road 1.6 mi w of Bear Valley Road; Bartlett Springs Road
487
Comment
UCD63873
Hesperolinon californicum
Craig D. Thomsen
2008-5-31
2759
Colusa
BLM Payne Ranch. Lands to the southwest of the intersection of Hwys 16 and 20. Cowboy Camp area on the west side of Hwy 16, 1 mile south of Hwy 20. 0.25 mile west of public viewing area and Bear Creek.
305
Comment
UCR261748
Hesperolinon californicum
Ann Howald
2003-5-29
2347
Colusa
Inner North Coast Ranges, Indian Valley, east side of East Park Reservoir, c. 3.6 miles north of Lodoga, 0.1 mi south of Chisolm Cove Group Campground
385
Comment
SD51765
Hesperolinon congestum
Helen K. Sharsmith
1952-6-21
4159
Colusa
North canyon slope overlooking Cooks Springs.
548
Comment Read comments Jul 18 2010
UCD110514
Hesperolinon didymocarpum
D. Sanchez-Mata
1998-6-24
s.n.
Colusa
Bear Valley. Bear Valley Road. Bear Valley Creek.
370
Comment
UCD110515
Hesperolinon didymocarpum
D. Sanchez-Mata
1998-7-9
s.n.
Colusa
Bear Valley. Destanella Flat-Walker Ridge.
450
Comment
CHSC94727
Hesperolinon disjunctum
Lowell Ahart
2006-6-11
12675
Colusa
On the east side of an off road trail (Trail 30), about 100 yards south of Fouts Road, about 5 miles (by road) west of Stonyford.
613
Comment
UC1088845
Hesperolinon disjunctum
Helen K. Sharsmith
1953-6-18
4253
Colusa
ca. 1 mi above Diversion Dam of Big Stoney Creek (near road from Stoneyford to Fouts Springs); Mendocino National Forest; Mendocino National Forest, Colusa Co.
518
Comment
UC1212498
Hesperolinon disjunctum
Helen K. Sharsmith
1951-7-13
4033
Colusa
on Bartlett Springs road 4.4 mi from Leesville (western margin of county); Inner North Coast Ranges
609
Comment
UCD63114
Hesperolinon disjunctum
Ellen Dean; G. Harrington, C. Thomsen, S. Harrison
2008-5-18
4945
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwys 20 and 16. Unnamed drainage south of Hwy 20 between Hwy 16 and Lynch Canyon that drains to Bear Creek by passing under Hwy 20.
398
Comment
UCR71414
Hesperolinon disjunctum
H. K. Sharsmith
1965-6-23
5529
Colusa
Inner North Coast Ranges, c. 1/4 mi. east of Cook Springs
534
Comment
OBI12542
Hesperolinon disjunctum
Rimo Bacigalupi, G. T. Robbins
1954-6-25
4622
Colusa
0.1 mi E of Lake county line and E of summit of rd from Bear Valley to Indian Valley
640
Comment
RSA151789
Hesperolinon disjunctum
H. K. Sharsmith
1959-5-27
4696
Colusa
Colusa County: foot of grade on lower Lake to Williams road, W side Bear Valley.
427
Comment Read comments Jan 23 2009
RSA151803
Hesperolinon disjunctum
H. K. Sharsmith
1951-7-13
4031
Colusa
Fouts Springs, near Mill Creek at junction with road to Black Diamond Ridge, Mendocino National Forest.
457
Comment
RSA262575
Hesperolinon disjunctum
Marilyn Ivey
1973-5-19
55
Colusa
1.5 miles up Wilbur Springs Road north off of State Highway 20.
Comment
UC1212479
Hesperolinon disjunctum
Helen K. Sharsmith
1959-5-27
4693
Colusa
1 mi below Cook Springs; Inner North Coast Ranges
518
Comment
CAS-BOT-BC167447
Hesperolinon drymarioides
Helen K. Sharsmith
1952-6-21
4159
Colusa
North canyon slope overlooking Cook Springs
548
Comment
CHSC111649
Hesperolinon drymarioides
David Isle; Geri Hulse-Stephens
1979-6-15
2060
Colusa
Mendocino National Forest - North Coast Ranges Little Stony Creek Watershed. NE of junction of Frenzel Creek with Little Stony Creek.
426
Comment
UC1212304
Hesperolinon drymarioides
Helen K. Sharsmith
1952-6-21
4159
Colusa
n canyon slope overlooking Cook Springs; Inner North Coast Ranges
548
Comment
UCD110523
Hesperolinon drymarioides
Helen K. Sharsmith
1952-6-21
4159
Colusa
North canyon slope overlooking Cook Springs.
548
Comment
UCD163331
Hesperolinon micranthum
Craig D. Thomsen
2009-5-3
2800
Colusa
Walker Ridge. Vicinity of Walker Ridge Rd., about 0.5 miles north of Hwy 20.
Comment
UCD82742
Hesperolinon micranthum
Craig Thomsen; G. Harrington
2009-5-14
2923
Colusa
Colusa County on Walker Ridge: southeast of Methany flat.
579
Comment
UCD19075
Heteranthera dubia
Richard Yeo
1976-10-1
s.n.
Colusa
3 mi. north of Williams, Glenn-Colusa Canal irrigation district.
Comment
CHSC94643
Heterocodon rariflorum
Lowell Ahart
2006-6-11
12678
Colusa
On the east side of an off road trail (Trail 30), about 100 yards south of Fouts Road, about 5 miles (by road) west of Stonyford.
613
Comment
SEINET4675377
Heteromeles arbutifolia
Richard R. Halse
2012-3-29
8458
Colusa
Along State Hwy. 20 just east of the Lake County Line, ca. 14.6 miles east of the junction with State Hwy. 53.; 0
558
Comment
UCD72451
Heteromeles arbutifolia
Ellen Dean; Gordon Harrington
2006-11-10
3312
Colusa
BLM Payne Ranch, lands to the SW of jct of Hwys 16 and 20. Western part of ranch, along ridge trail above Cache Creek.
535
Comment
JEPS81347
Heuchera micrantha var. pacifica
L. R. Heckard and J. C. Hickman
1982-7-7
5958
Colusa
nw side Snow Mt (Crooked Tree Ridge)
1935
Comment
UCSC003615
Heuchera micrantha var. pacifica
L. Amidon, C. Rutherford
1975-6-5
45
Colusa
In shaded rocks of promontory on southeast corner of Snow Mt. overlooking and 3 miles northwest of Fouts Springs. Snow Mountain.
Comment
UC914092
Hibiscus lasiocarpos
Milo S. Baker
1946-9-4
11608
Colusa
near locked gate of Colusa Gun Club Butte Sink
Comment
CDA38628
Hibiscus trionum
Ken Flagor
2012-8-28
PDR# 060 P089080
Colusa
North of Maxwell; north of Lenahan Road, south of Delevan Road, west of Sutton Road, east of McDermott Road.
0
Comment
RSA0016033
Hippuris vulgaris
J. M. Tucker, L. K. Mann
1959-5-30
3528
Colusa
Small lake in Mill Valley, ca. 0.25 mile northwest of Lower Letts Valley, and ca. 4 miles, airline, north of Goat Mountain Lookout.
1220
Comment
RSA523605
Holocarpha virgata subsp. virgata
Barbara Ertter, E. Neese, Laura Fujii, Dawn Espindola
1989-10-21
8875
Colusa
NW side of East Park Reservoir near end of East Park Road form Stonyford.
366
Comment
SEINET10758259
Holocarpha virgata subsp. virgata
Andrew Townesmith, Karen M. Meyer
2007-8-7
Townesmith 907
Colusa
Mendocino National Forest, Grindstone Ranger District. Vicinity of Wolf Creek OHV staging area, off Forest Service route M10, 4.2 miles west of intersection with Lodoga-Stonyford road in Stonyford. T18N R7W.
452
Comment
UC725605
Holocarpha virgata subsp. virgata
A. A. Heller
1940-6-7
15721
Colusa
road to Sites; Lodogo
Comment
UCD55458
Holocarpha virgata subsp. virgata
Ellen Dean; Gordon Harrington
2006-10-6
3282
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of State Routes 20 and 16. Ranch can be accessed via north gate which is located on a road on the S side of State Route 20, 2.3 road miles W of jct of State Routes 16 and 20. In Thompson Canyon, along dirt road that parallels ephemeral drainage.
374
Comment
CAS-BOT-BC152578
Holodiscus discolor var. discolor
A. A. Heller
1916-6-6
12362
Colusa
Coast Range on the grade about 3 miels west of Leesville
Comment
CHSC107983
Hordeum brachyantherum subsp. brachyantherum
B. Castro; L. Janeway
2011-4-27
1864
Colusa
Sacramento Valley. Extreme west edge of Sacramento Valley; approximately 1 mi southeast of Funks Reservoir and 800 ft northeast of Tehama-Colusa Canal. Around edges of alkaline flat off northwest corner of large +/- alkaline marsh.
49
Comment
JEPS118603
Hordeum brachyantherum subsp. californicum
B. Castro, L. P. Janeway
2001-6-3
1260
Colusa
Inner North Coast Ranges. Til Jones Spring at headwaters of Freshwater Branch of E. Fork Sulphur Creek, 0.6 mi E of top of Walker Ridge. Ca 3 air mi W of S end of Bear Valley, and 1.75 air mi SSE of Cold Spring Mtn. Wilbur Springs 7.5' quad.
Comment
SEINET10598961
Hordeum californicum
Roxana S. Ferris
1917-1
Ferris 518
Colusa
Comment
CHSC112265
Hordeum depressum
Lowell Ahart; John Dittes, Josephine Guardino
2013-4-26
18637
Colusa
Inner North Coast Range. North side of State Highway 20, just east of Lake County Line, 12.2 miles (air) east-northeast of Clear Lake (town), 17.1 miles (air) west of Williams.
566
Comment
UCD163712
Hordeum marinum subsp. gussoneanum
Craig Thomsen
1999-5-10
2023 b
Colusa
Colusa County. At confluence of Sulphur Creek and Bear Creek. About 3 miles north of Hwy 20.
Comment
CHSC110839
Hordeum marinum subsp. gussoneanum
David Isle
1989-5-14
1999
Colusa
Stony Creek Watershed. Pendell Ranch--2 miles W of Co. Rd. 306 Jct w/ Fouts Ssprings Road. 150 yards south of Pendell home.
384
Comment
RSA669471
Hordeum murinum subsp. glaucum
R. R. Halse
2001-3-22
5946
Colusa
Williams, along vacant lot by 455-4th street.
18
Comment
CHSC83693
Hordeum vulgare
L. P. Janeway
2002-4-24
7522
Colusa
Sacramento Valley/Inner North Coast Ranges border. Vicinity of Logan Ridge, Stone Corral Creek, and Funks Creek.
103
Comment
UCD82589
Horkelia californica var. elata
Craig D. Thomsen; J. Wiegand, S. Harrison, G. Harrington, A. Fulks
2008-4-22
2734
Colusa
Walker Ridge. About 3.2 mi N of Hwy 20, adjacent to abandoned road leading back to Walker Ridge Rd. from 'Oak Cove.
822
Comment
JEPS95511
Hornungia procumbens
Vernon H. Oswald and L. Ahart
1994-4-6
6075
Colusa
T16N R7W SW1/4 Sec. 11, 1800 ft, Chaparral. Goat Mtn. Rd. 0.3 mi S of Little Stony Creek Bridge, SW of Digger Pine Flat, SSW of Stonyford
548
Comment
HSC48199
Hypochaeris glabra
Thomas W. Nelson, Jane P. Nelson
1978-4-29
3957
Colusa
Along Bear Valley Rd., 2.5 mi. from junction with Hwy. 20
366
Comment
RSA256676
Iris macrosiphon
Maralyn O'Meara, Gary S. Lester
1974-5-4
342
Colusa
Walker Ridge Road, ca. 0.7 mile from junction with Little Indian Valley Road
854
Comment
UCD56938
Iva axillaris
Ellen Dean; Gordon Harrington and Kate Mawdsley
2007-3-30
3540
Colusa
BLM Payne Ranch. Southwest of intersection of Hwy. 16 and Hwy. 20. Thompson Canyon.
344
Comment
CHSC62909
Juncus balticus
Vernon H. Oswald
1994-4-11
6104
Colusa
Sacramento National Wildlife Refuge. Refuge located ca. 7 mi S of Willows, at the SW corner of Tract 39.
25
Comment
CHSC86837
Juncus balticus
Jenny Marr; Heidi West, Caroline Warren, Natalie Wight
1998-6-11
Colusa
Vicinity of Funks Creek, Logan Ridge, Golden Gate, and Antelope Valley.
121
Comment
JEPS80251
Juncus balticus
L. R. Heckard, and J. Hickman
1980-9-15
5430
Colusa
below Summit Springs (Lake-Colusa County boundary); Snow Mt.
1524
Comment
UCR212366
Juncus balticus
Craig D. Thomsen
2000-4-28
2178
Colusa
Bear Creek Botanical Management Area. On Caltrans right-of-way, south side of Hwy 20, 0.25 mi west of Hwy 20/16 intersection, milepost 2.80-3.00
310
Comment
CHSC107173
Juncus balticus subsp. ater
L. P. Janeway; B. Castro
2011-5-19
10284
Colusa
Sacramento Valley. Extreme west edge of Sacramento Valley; 1.8 km southeast of Funks Reservoir and 0.2 km northeast of Tehama-Colusa Canal. Large +- alkaline vernal pool/marsh; mucky clay soil. Eastern of the 2 Juncus patches at the south edge of the marsh, just above high water line.
50
Comment
HSC62947
Juncus balticus subsp. ater
Marla J. Carollo
1979-4-14
32
Colusa
Bear Valley Rd., 3.9 mi. N of Hwy. 20, next to Bear Creek.
412
Comment
UCD61468
Juncus balticus subsp. ater
Ellen Dean; G. Harrington, N. Voegtly, J. Alderson, C. Thomsen
2007-6-24
3914
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwy 16 and Hwy 20. West of BLM equestrian parking lot (Cowboy Camp) on west side of Bear Creek. Approximately 1/2 mile south of parking lot, along Bear Creek.
312
Comment
CHSC112219
Juncus bufonius
Lowell Ahart
2013-5-1
18691
Colusa
Inner North Coast Range. In a small drainage, north of the wash and State Highway 20, just east of Lake County Line, 12.2 miles (air) east-northeast of Clear Lake (town), 17.1 miles (air) west of Williams.
566
Comment
JEPS93871
Juncus bufonius var. congestus
Vernon H. Oswald and Lowell Ahart
1998-7-15
9305
Colusa
w side of county on Walker Ridge Road 8.2 mi s of Bartlett Springs Road (6.3 mi n of Highway 20); Walker Ridge Road
792
Comment
JEPS80387
Juncus covillei
L. R. Heckard and J. Hickman
1981-6-22
5620
Colusa
along Dark Hollow Creek Snow Mt.
1889
Comment
JEPS80259
Juncus covillei
L. R. Heckard and J. Hickman
1980-9-15
5439
Colusa
n of road at Summit Springs (Snow Mountain, Lake-Colusa County Boundary); Snow Mountain, Summit Springs
1524
Comment
CHSC94441
Juncus ensifolius
Lowell Ahart
2006-8-9
13145
Colusa
North side and just east of the bridge across Stony Creek, just north of Stonyford.
347
Comment
JEPS110176
Juncus ensifolius
Lowell Ahart
2006-8-9
13145
Colusa
North side and just east of the bridge across Stony Creek, just north of Stonyford
347
Comment
RSA724953
Juncus ensifolius
L. Ahart
2006-8-9
13145
Colusa
North side and just east of the bridge across Stony Creek, just north of Stonyford
348
Comment
JEPS75870
Juncus howellii
L. R. Heckard and J. H. Thomas
1974-9-10
2890
Colusa
s East Peak (upper reaches of creek); Snow Mt., Dark Hollow Creek
2011
Comment
JEPS73502
Juncus laccatus
L. R. Heckard
1972-7-10
3120
Colusa
Trout Creek crossing of trail to Box Springs; Snow Mt.
1828
Comment
UCD61460
Juncus mexicanus
Ellen Dean; G. Harrington, N. Voegtly, J. Alderson, C. Thomsen
2007-6-24
3906
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwy 16 and Hwy 20. West of BLM equestrian parking lot (Cowboy Camp) on west side of Bear Creek. Approximately 1 mile SW of parking lot.
390
Comment
UCD82439
Juncus patens
Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth
2009-5-20
5665
Colusa
Walker Ridge. Along Walker Ridge Road, ca. 0.5 road mi N of intersection with road to Indian Valley Reservoir. Parking area, undeveloped roads, flats and slopes on W side of road.
869
Comment
CHSC90870
Juncus phaeocephalus
D. Isle
2002-6-28
176
Colusa
Mendocino National Forest--North Coast Ranges. Little Stony Creek Watershed. Below a 4x4 Rd. 17N31 (Lovelady Ridge Jeep Rd.).
1060
Comment
SBBG119881
Juncus xiphioides
L. Ahart
2006-8-9
13145
Colusa
N side and just E of the bridge across Stony Crk, just N of Stonyford
347
Comment
UC842993
Juncus xiphioides
A. A. Heller
1916-6-9
12389
Colusa
about 8 mi w Williams; Coast Range
Comment
UCD63130
Juncus xiphioides
Ellen Dean; G. Harrington, C. Thomsen, S. Harrison
2008-5-18
4960
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwys 20 and 16. Meadow to the east of Destinella Flat, ca. 3 rd miles west of the junction with Hwy 16 on the south side of Hwy 20.
526
Comment
CDA20252
Juncus xiphioides
G. D. Barbe, Nola Parmer
1982-6-4
3638
Colusa
Sacramento Valley; Goat Mountain Rd, w of Lodoga-Stonyford Rd, Mendocino National Forest.
0
Comment
CHSC32198
Kelloggia galioides
James Jokerst
1980-8-8
1083
Colusa
North Coast Ranges. Near Snow Mountain (west).
Comment
JEPS73503
Kelloggia galioides
L. R. Heckard
1972-7-10
3121
Colusa
near Trout Crossing of trail to Box Springs (Snow Mt.); Snow Mt.
1828
Comment
UCD164166
Koeleria macrantha
Craig Thomsen
2001-5-6
2558
Colusa
Wilbur Hot Springs.
Comment
UCD72528
Koeleria macrantha
Ellen Dean; J. Alderson, N. Voegtly, and C. Thomsen
2007-5-12
3819
Colusa
BLM Payne Ranch, lands to the SW of jct of Hwys 16 and 20. Area of ranch west of Hwy 16, near bridge that spans Bear Creek, ca. 4.5 road miles south of junction of Hwy 16/20. West side of Bear Creek along trail that begins approximately opposite the BLM parking lot near south end of bridge. Approx. 0.75 mile along trail.
286
Comment
UCD82476
Lactuca
Craig Thomsen; G. Harrington
2009-5-12
2854
Colusa
Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd.
707
Comment
CHSC70966
Lagophylla minor
Vernon Oswald; Lowell Ahart
1998-5-7
8998
Colusa
Bartlett Springs Rd. 2.1 mi west of Bear Valley Rd., 0.8 mi east of Sawtelle Valley and Grapevine Flat roads.
524
Comment
CHSC94692
Lagophylla minor
Lowell Ahart
2006-6-11
12667
Colusa
On the east side of an off road trail (Trail 30), about 100 yards south of Fouts Road, about 5 miles (by road) west of Stonyford.
613
Comment
HSC96892
Lagophylla minor
L. Ahart
2006-6-11
12667
Colusa
E side of an off road trail (Trail 30), about 100 yards S of Fouts Rd., about 5 mi. W of Stonyford
613
Comment
OBI15966
Lagophylla minor
Robert F. Hoover
1968-5-27
11098
Colusa
Bear Crk cyn N of hwy 20 (near Wilbur Springs)
Comment
UCD82519
Lagophylla minor
Craig Thomsen; G. Harrington
2009-5-12
2876
Colusa
Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd.
713
Comment
JEPS38990
Lagophylla minor
W. L. Jepson
1938-6-9
18959
Colusa
mts. betw. Indian Valley (Lake Co.) and Bear Valley (Colusa Co.)
579
Comment
RSA0011767
Lagophylla minor
A. A. Heller
1940-5-6
15578
Colusa
On State Hwy 20, 2 miles W of the junction with Hwy 16.
Comment
SEINET9310484
Lagophylla ramosissima
Unknown
2009-5-20
14740
Colusa
Central Inner Coast Ranges: along CA-16 near Bear Creek, 1.6 miles S of the jct with CA-20 (Glasscock Mountain 7.5' W). Chaparral and oak woodland. Occasional on open flat in disturbed soil.
Comment
UCD56930
Lamium amplexicaule
Ellen Dean; Gordon Harrington and Kate Mawdsley
2007-3-30
3533
Colusa
BLM Payne Ranch. Southwest of intersection of Hwy. 16 and Hwy. 20. Thompson Canyon.
353
Comment
CAS-BOT-BC337883
Lasthenia
Peter Rubtzoff
1978-5-14
9167
Colusa
Bear Valley Road ca. 4-5 miles south of junction of the road to Fort Ross State Historic Park. Bartlett Springs Road
Comment
UCD23380
Lasthenia californica subsp. californica
George C. Ziobro
1978-4-8
2
Colusa
collected off of Bear Valley Road 10.3 miles north of the junction with State Route 20.
396
Comment
CAS-BOT-BC324484
Lasthenia ferrisiae
Alice Eastwood
1921-4-11
10232
Colusa
Colusa
Comment
UC725317
Lasthenia ferrisiae
A. A. Heller
1929-3-12
14824
Colusa
2 mi n Maxwell
Comment
UCD18839
Lasthenia fremontii
Vernal Pool Team 2001; Carol Witham and Jennifer Buck
2001-4-30
146
Colusa
2 mi. south of the town of Colusa along Hwy 20, east of Hwy 20 and the Colusa Airport, Dolan Ranch site, pool # DOL001, UTMs: 10S0587786; 4336302.
Comment
CAS-BOT-BC353479
Lasthenia fremontii
Mrs. Alvin Seale
1932-4-17
s.n.
Colusa
unspecified
Comment
CAS-BOT-BC352923
Lasthenia glaberrima
J. M. Tucker
1978-5-6
4408
Colusa
West side of Bear Valley Road, 11 miles (by road) north of junction with State Hwy 20
396
Comment
UCD133750
Lasthenia glaberrima
J. M. Tucker
1978-5-6
4408
Colusa
On west side of Bear Valley Road, 11 miles (by road) north of junction with State Highway 20.
365
Comment
CAS-BOT-BC328109
Lasthenia glabrata subsp. coulteri
Roxana S. Ferris
1917-4-12
503
Colusa
4 miles E of Williams
Comment
POM163441
Lasthenia glabrata subsp. coulteri
Roxana S. Ferris
1926-4-22
6288
Colusa
3 miles W of Colusa.
Comment
CHSC101593
Lasthenia glabrata subsp. glabrata
David W. Isle; Rhonda Isle, Dorothy Lingerfelt
1998-4-19
1661
Colusa
Mendocino National Forest; Keegan Ranch, adj. Bear Valley Road. MDB and M.
Comment
UCR212333
Lasthenia glabrata subsp. glabrata
Craig D. Thomsen
2000-3-31
2046
Colusa
Bear Creek Botanical Management Area. On Caltrans right-of-way, south side of Hwy 20, 0.25 mi west of Hwy 20/16 intersection, milepost 3.00
310
Comment
UCR247331
Lasthenia glabrata subsp. glabrata
Peter Rubtzoff
1978-5-14
9167
Colusa
Inner North Coast Range, Bear Valley Road, c. 4-5 miles south of junction of the road to Ft. Ross State Historic Park, Bartlett Springs Road
405
Comment
UCD132538
Lasthenia gracilis
Beecher Crampton
1958-4-21
9169
Colusa
3.5 miles N.W. of Lodoga by road.
Comment
UC90010
Lasthenia platycarpha
T. S. Brandegee
1889-4-12
Colusa
Colusa Junction
Comment
JEPS127615
Lathyrus jepsonii var. californicus
B. Castro with Tom Boullion
2008-6-4
1733
Colusa
Ca 5 air miles N of Colusa, ca 0.5 mi E of Hwy 45 off N edge of Reservation Road. On upper terrace within levee, overlooking riprap-lined bend in the Sacramento River (River-mile 154.3).
Comment
JEPS95647
Lathyrus jepsonii var. californicus
Vernon H. Oswald and L. Ahart
1999-6-22
9782
Colusa
West of Stonyford and 0.7 mi south of Letts Lake Road on FS 17N02: T17N R8W Sect. 25, 4440 ft, mixed coniferous forest
1353
Comment
UCD81710
Lathyrus jepsonii var. californicus
Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia
2009-5-27
5716
Colusa
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 20. W side of road.
833
Comment
HSC67099
Lathyrus vestitus subsp. vestitus
Teri Bartowski, Carol Zimmerer, Ruth Takaki, Shane Feusier
1980-4-19
38
Colusa
Bartlett Springs Rd. at stream crossing.
Comment
HSC95805
Lathyrus vestitus subsp. vestitus
A. Skelly, B. Bletcher, G. McCabe
1996-3-30
10
Colusa
1.6 mi. W of Bear Valley Rd. and Brim Rd. on Brim Rd., 14.7 mi. on Walker Ridge Rd. to Brim Rd., 57 mi. E of Hwy. 101 on Hwy. 20, Leesville
Comment
CHSC48511
Lathyrus vestitus var. vestitus
Vernon Oswald
1986-5-12
2009
Colusa
Brim Rd. (Bartlett Springs Rd.) 2.1 mi w of Bear Valley Rd.
487
Comment
CAS-BOT-BC323903
Layia chrysanthemoides
Roxana S. Ferris
1926-4-23
6404
Colusa
Roadside near Mountain House on Williams-Stonyford Road
Comment
CHSC55474
Layia chrysanthemoides
Barbara Adams
1991-4-6
13
Colusa
Ca 0.3 mi west of junction of Hwys 20 and 16, south side of Bear Creek, ca 18 mi southwest of Williams.
321
Comment
JEPS13438
Layia chrysanthemoides
R. F. Hoover
1938-4-24
3224
Colusa
Venado
Comment
UC638650
Layia chrysanthemoides
Ethel Crum
1938-5-8
2038
Colusa
four mi s of Leesville; Bear Valley
426
Comment
UCD163205
Layia chrysanthemoides
Craig D. Thomsen
2000-3-31
2073
Colusa
Bear Creek Botanical Management Area. CalTrans right-of-way along Hwy 20 (south side), about 0.3 mile west of Hwy 20/16 intersection.
345
Comment
POM284945
Layia chrysanthemoides
Lyman Benson
1935-3-27
6341
Colusa
Williams; Mt. Range: Inner N Coast; Watershed: Sacramento River
61
Comment
UCD133958
Layia chrysanthemoides
J. M. Tucker; Dorothy Dreyfus
1967-4-29
4035
Colusa
at south end of Bear Valley. 6.3 miles north of junction of Bear Valley Road with State Highway 20.
426
Comment
UCR37887
Layia chrysanthemoides subsp. chrysanthemoides
C. G. Phillips, L. Cole, SA. Haultain, K. B. Barrows
1984-4-29
32
Colusa
Bear Valley road
Comment
CHSC110419
Layia platyglossa
David Isle; Rhonda Isle; Hank Switzer
2011-4-14
1950
Colusa
North Coast Ranges. Bear Valley on S edge of Bear Valley R. MDBM.
Comment
CHSC65801
Layia platyglossa
L. P. Janeway; B. Castro, Linnea Hanson, Beth Corbin, Kim Earl
1995-4-28
4761
Colusa
Southern end of Bear Valley just west of where the road crosses Bear Creek.
396
Comment Read comments May 24 2013
UCD15426
Layia platyglossa
Margit Sands
1985-4-13
29
Colusa
in Bear Valley, 3.8 miles north of Wilbur Hot Springs rd.
390
Comment
UCD163306
Layia platyglossa
Craig D. Thomsen
1997-4-20
1909
Colusa
Bear Valley. About 5 miles north of Hwy 20.
Comment
UCR206849
Layia platyglossa
George K. Helmkamp, E. A. Helmkamp
2009-3-11
14358
Colusa
Sacramento Valley, junction of Moon Bend Road and CA-20 at the south end of the city of Colusa
23
Comment
UCR206869
Layia platyglossa
George K. Helmkamp, E. A. Helmkamp
2009-1-31
14314
Colusa
Sacramento Valley, junction of Moon Bend Road and CA-20 at the south end of the city of Colusa
23
Comment
CAS-BOT-BC380897
Layia platyglossa
Ethel Crum
1936-5-8
2036
Colusa
Bear Valley 4 miles south of Leesville
426
Comment
UCD135674
Layia platyglossa
Bruce G. Baldwin
1986-4-13
597
Colusa
Bear Valley, 7.3 miles north of junction with California State Highway 20 along Bear Valley Road.
Comment
CAS-BOT-BC329324
Layia septentrionalis
R. F. Hoover
1938-4-24
3213
Colusa
Upper Sand Creek
Comment
CHSC91503
Layia septentrionalis
D. Isle
1995-4-27
390
Colusa
Mendocino National Forest--North Coast Ranges. Middle Fork Stony Creek Watershed. East Park Reservoir Spillway Rd., just SE of spillway and on both sides of road just before spillway summit.
365
Comment
JEPS13436
Layia septentrionalis
R. F. Hoover
1938-4-24
3213
Colusa
Upper Sand Creek
Comment
UC761877
Layia septentrionalis
R. F. Hoover
1938-4-24
3213
Colusa
Upper Sand Creek
Comment
UCR261644
Layia septentrionalis
Ann Howald
2003-3-26
2290
Colusa
Inner North Coast Ranges, Indian Valley, East Park Reservoir, Catholic Point peninsula, near Coppermine Road, c. 0.2 mi northwest of intersection with East Ruby King Road
417
Comment
UCR261645
Layia septentrionalis
Ann Howald
2003-3-26
2289
Colusa
Inner North Coast Ranges, Indian Valley, East Park Reservoir, Catholic Point peninsula, near Coppermine Road, c. 0.2 mi northwest of intersection with East Ruby King Road
407
Comment
UCR261647
Layia septentrionalis
Ann Howald
2003-4-23
2309
Colusa
Inner North Coast Ranges, Indian Valley, East Park Reservoir, Catholic Point peninsula, west of Coppermine Road, c. 0.05 mi north of intersection with East Ruby King Road
428
Comment
UCR261678
Layia septentrionalis
Ann Howald
2003-4-24
2315
Colusa
Inner North Coast Ranges, Indian Valley, west side of East Park Reservoir, west side Little Stony Creek, opposite the dam
350
Comment
UC1101273
Lemna aequinoctialis
Herbert L. Mason
1946-8-15
13009
Colusa
2 mi w on Williams Highway by bridge Colusa; Williams Highway
Comment
POM185961
Lemna gibba
A. A. Heller, H. E. Brown
1902-5-19
5571
Colusa
Near Colusa.
Comment
CAS-BOT-BC527263
Lemna gibba
A. A. Heller; H. E. Brown
1902-5-19
5571
Colusa
Near Colusa
Comment
JEPS127105
Lemna minuta
Lowell Ahart, John Dittes, Josephine Guardino
2016-2-14
20723
Colusa
About 1/2 mile north of Letts Lake, about 1/2 mile south of the large campground, about 13 miles (air) southwest of Stonyford.
Comment
CAS-BOT-BC527300
Lemna trisulca
C. Ritchie Bell
1951-6-13
1167
Colusa
Below Letts Meadow on road from Bear Creek to Foutes Spring
914
Comment
POM312464
Lemna trisulca
C. Ritchie Bell
1951-6-13
1167
Colusa
Lake below Letts Meadow on road from Bear Creek to Foutes Spring
915
Comment
UCD138193
Lemna trisulca
C. Richie Bell
1951-6-13
1167
Colusa
below Letts Meadow on road from Bear Creek to Foutes Spring.
914
Comment
UCD66919
Leontodon saxatilis
Craig D. Thomsen; G. Harrington
2008-7-6
2777
Colusa
BLM Payne Ranch. Lands to the SW of the jct of Hwys 20 and 16. Western edge of ranch on ridge above Cache Creek canyon. Along ridge trail.
510
Comment
UC117628
Lepidium dictyotum var. acutidens
K. Brandegee
Apr 1889
Colusa
Colusa Junction
Comment
CHSC62926
Lepidium dictyotum var. dictyotum
Vernon H. Oswald; Lowell Ahart
1994-4-6
6074
Colusa
Goat Mtn. Rd. 0.3 mi S of Little Stony Creek Bridge, SW of Digger Pine Flat, SSW of Stonyford. Along a drainage.
548
Comment
CHSC91136
Lepidium latifolium
D. Isle
1997-7-31
333
Colusa
Mendocino National Forest--North Coast Ranges. Bear Creek Watershed. 3 mi. S of jct. Bartlett Springs/Bear Valley Rd.
304
Comment
UCD72469
Lepidium latifolium
Ellen Dean; J. Alderson, N. Voegtly, and C. Thomsen
2007-5-12
3803
Colusa
BLM Payne Ranch, lands to the SW of jct of Hwys 16 and 20. Area of ranch west of Hwy 16, near bridge that spans Bear Creek, ca. 4.5 road miles south of junction of Hwy 16/20. Bank of Bear Creek near north end of bridge, west side of creek.
260
Comment
CDA24916
Lepidium latipes
D. Brown
1977-5-5
Colusa
Terhel Farms Inc., Williams.
0
Comment
CAS-BOT-BC89761
Lepidium latipes
Brandegee
s.n.
Colusa
Unspecified.
Comment
CHSC112923
Lepidium latipes var. latipes
B. Castro; L. Janeway, Robin Carter
2010-3-23
1802
Colusa
Vicinity of Golden Gate in Logan Ridge, Funks Reservoir, and the Tehama-Colusa canal, in disturbed, grazed annual grassland.
120
Comment
UCD57874
Lepidium latipes var. latipes
Gordon Harrington; Diana Hickson, Jack Alderson
2007-4-29
52
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of State Routes 20 and 16. About 250 feet north of Road Kill Cafe in flat meadow-pasture area.
385
Comment
JEPS53702
Lepidium nitidum
W. L. Jepson
1920-5-23
8967
Colusa
2-3 mi sw Leesville (foot of Bartlett grade, w side of Bear Valley); Bear Valley, Bartlett Grade
426
Comment
CAS-BOT-BC12710
Lepidium oblongum
Roxana S. Ferris
1917-4-19
695
Colusa
Sycamore Slough. Roadside.
Comment
CHSC79002
Lepidium strictum
J. Marr; C. Warren, H. West, N. Wight
1998-6-11
Colusa
West of Maxwell, vicinity of Logan Ridge and Funks Creek.
114
Comment
RSA799180
Lepidium strictum
George K. Helmkamp, E. A. Helmkamp
2011-4-1
17134
Colusa
Eastern foothills North Coast Ranges: Antelope Valley, along Maxwell-Sites Road, 2.0 mi southeast of Sites.
85
Comment
UCD63675
Leptochloa fusca subsp. fascicularis
Elizabeth Wilson
1940-1
Colusa
Colusa.
Comment
RSA424704B
Leptosiphon bicolor
Aaron Liston, M. A. Blumler
1987-4-26
667 -6
Colusa
Bear Valley - Lodoga Road, 6.6 miles S of Bartlett Springs Jct.
Comment
HSC85856
Leptosiphon bicolor
Bruce Delgado, Tim Tilghman, Rob Marheine
1987-4-11
Colusa
Bear Valley, Bartlett Springs Rd.
Comment
HSC85934
Leptosiphon bicolor
Michalski, Raum, Hopson
1987-4-12
61
Colusa
Side of Leesville-Williams Rd.
Comment
UCD14330
Leptosiphon bicolor
Kathi A. Zurakowski
1984-4-21
Colusa
Colusa Co.; Bear Valley, 3.2 miles north of Wilbur Springs turnoff, west of road;
381
Comment
POM310950
Leptosiphon bolanderi
H. L. Mason
1941-4-5
12404
Colusa
Three miles south of Stonyford
Comment
UCD55171
Leptosiphon bolanderi
Kim E. Steiner
1978-4-29
202
Colusa
Walker Ridge Road; 1.5 miles N of State Hwy 20.
777
Comment
HSC65995
Leptosiphon ciliatus
Cathie Goldberg, Lynn Kunstman, Lauren Philbrick, Geoff Walsh
1980-4-19
51
Colusa
Leesville Rd. from Leesville to Williams, 3.8 mi. E of Leesville
Comment
UCD57704
Leptosiphon ciliatus
Daniel Chau; with Plant Biology 102
2007-4-29
1
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of State Routes 20 and 16. Eastern part of ranch, ca. 2 road miles south of intersection of State Routes 20 and 16. Along unimproved road in the mouth of Craig Canyon.
313
Comment
UCR261753
Leptosiphon ciliatus
Ann Howald
2003-5-29
2348
Colusa
Inner North Coast Ranges, Indian Valley, east side of East Park Reservoir, c. 3.6 miles north of Lodoga, 0.1 mi south of Chisolm Cove Group Campground
385
Comment
CHSC1269
Leptosiphon parviflorus
V. Holt
1935-5-12
Colusa
Stonyford.
Comment
CHSC79792
Leptosiphon parviflorus
L. P. Janeway; B. Castro
2000-5-4
6703
Colusa
Vicinity of Grapevine Creek and Sites-Lodoga Road.
262
Comment
UC1613491
Leptosiphon parviflorus
Charles M. Belshaw
1937-4-25
2829
Colusa
Inner North Coast Range: Cooks Springs, Devils Ridge
Comment
UCD81858
Leptosiphon parviflorus
Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia
2009-5-27
5742
Colusa
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.
1061
Comment
CHSC32205
Lesquerella occidentalis subsp. occidentalis
James Jokerst
1980-8-7
1067
Colusa
North Coast Ranges. Near Snow Mountain (west).
Comment
NY180585
Lessingia nemaclada
M. K. Curran
1884-1
s.n.
Colusa
At Epperson's
Comment
RSA134705
Lessingia nemaclada
P. H. Raven, R. Snow
1959-9-11
14425
Colusa
About 2 miles south-east of Happy Camp
762
Comment
JEPS85618
Lessingia ramulosa
Rimo Bacigalupi with G. T. Robbins
1954-6-25
4621
Colusa
0.1 mi e Lake County line (e of summit of road from Bear Valley to Indian Valley)
640
Comment
RSA700360
Lessingia ramulosa
L. P. Janeway
2001-6-6
7126
Colusa
Deadshot Spring, about 1.9 km (air) east of Walker Ridge Road.
716
Comment
UC1552844
Lessingia ramulosa
Frederica Bowcutt
1985-6-19
604
Colusa
about 2 air mi n Wilbur Hot Springs (just sw of Bear Valley); Bear Valley, Wilbur Hot Springs
Comment
UCD61472
Lessingia ramulosa
Ellen Dean; G. Harrington, N. Voegtly, J. Alderson, C. Thomsen
2007-6-24
3918
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwy 16 and Hwy 20. West of BLM equestrian parking lot (Cowboy Camp) on west side of Bear Creek. Just west of parking lot on west side of Bear Creek.
312
Comment
UCD66698
Lessingia ramulosa
Craig D. Thomsen
2000-6-23
2400
Colusa
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.
325
Comment
UCD66708
Lessingia ramulosa
Craig D. Thomsen
2001-5-24
2507
Colusa
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 2.17 and 2.25.
342
Comment
HSC31308
Lewisia rediviva
Carter Schleicher
1974-5-4
25
Colusa
0.75 mi. from T junction of Walker Ridge Rd. and Indian Valley, near Clyde Mine
854
Comment
JEPS15551
Lewisia triphylla
G. Thomas Robbins with L. R. Heckard
1956-7-25
3708
Colusa
meadow along trail due s, skirting e base of ridge forming Snow Mt. West Snow Mt. East; Snow Mt. West
1981
Comment
UC1146611
Leymus triticoides
Freed W. Hoffman
1944-7-14
1954
Colusa
Wilbur Springs North Coast Ranges
Comment
CHSC75651
Lilium pardalinum subsp. pardalinum
Vernon H. Oswald; Lowell Ahart
1999-6-22
9789
Colusa
2.2 mi west of Stonyford-Lodoga Road on County Road 42 paralleling Little Stony Creek.
426
Comment
CDA34116
Limnanthes alba
P. Hiatt
1979-4-26
7
Colusa
North end of Bear Valley at Bartlett Springs Road.
0
Comment
CHSC84972
Limosella acaulis
Lowell Ahart
2003-10-23
10678
Colusa
On the east strand of East Park Reservoir, about 1/8 mile northwest of Sites Lodoga Road, about 1 mile north of Lodoga, about 21 miles west of Maxwell.
368
Comment
UCD66941
Limosella acaulis
Ellen Dean; G. Harrington, J. Alderson, E. Bayon, R. Willmarth
2008-6-8
5090
Colusa
BLM Payne Ranch, lands to the SW of jct of Hwys 16 and 20. Western side of ranch along trail that follows the border of Lake and Colusa counties. Dunsfield Flat stock pond.
628
Comment
IRVC29626
Linanthus
Mark A. Elvin, Mark S. Brunell, David Isle
2006-8-3
5023
Colusa
Snow Mtn; Summit Spring Trail; 1.4km W of Snow Mtn West summit; 800m N of Cedar Camp. Southern Northern Inner Coast Ranges
1989
Comment
UC971715
Linanthus bolanderi
Herbert L. Mason
1941-4-5
12404
Colusa
3 mi s Stonyford
Comment
UC201776
Linanthus bolanderi
Volney Rattan
1884-5-20
Colusa
summit above Foute's Springs
Comment
CHSC112227
Linanthus ciliatus
Lowell Ahart
2013-5-1
18668
Colusa
On the east side of Bear Valley Road, about 2 1/2 miles (by road) northwest of the intersection of State Highway 20 and Bear Valley Road.
533
Comment
UC614691
Linanthus ciliatus
L. Constance
1938-4-22
2149
Colusa
11 mi ne Lake-Colusa County line (Lower Lake-Williams road, above Salt Creek); Inner North Coast Ranges
152
Comment
UC125228
Linanthus filipes
Katharine Brandegee
Apr 1889
Colusa
Leesville
Comment Read comments Aug 28 2012
UC618381
Linanthus parviflorus
Alice Eastwood and John Thomas Howell
1938-5-16
5630
Colusa
Lake-Colusa county line, on road to Williams
Comment
JEPS39670
Linanthus parviflorus
Rimo Bacigalupi, and T. Crovello, and L. Heckard
1965-4-26
9047
Colusa
2.5 mi from Ladoga junction (at summit w of Bear Valley on road to Bartlett Springs, Colusa-Lake County boundary)
670
Comment
UCD118726
Linanthus pungens
G. Ledyard Stebbins Jr.
1964-7-4
6172
Colusa
Mt. St. John, west of Stonyford.
1676
Comment
UCD58099
Lithophragma affine
Ellen Dean; C. Thomsen, S. Bledsoe, G. Harrington, D. Hickson
2007-3-25
3476
Colusa
BLM Payne Ranch. Lands to the southwest of the intersection of Hwy. 16 and Hwy. 20. Destinella Flat, just E of the Lake County Border. Ca. 3.4 miles along Hwy. 20 from junction of Hwy. 20 and Hwy. 16.
560
Comment
CAS-BOT-BC432295
Lithophragma campanulatum
Helen K. Sharsmith
1953-7-1
4403
Colusa
above Linger Longer Camp, Goat Mountain, Mendocino National Forest
1615
Comment
UCD102676
Lithophragma campanulatum
A. M. Shapiro
1994-6-12
s.n.
Colusa
Below Steel Trap Rock, vicinity of Goat Mtn. (close by to the south of the rock).
1310
Comment
SEINET8720321
Lithophragma parviflorum
Helen K. Sharsmith
1953-1
4403
Colusa
Above Linger Longer Camp, Goat Mountain, Mendocino National Forest.
1615
Comment
UCD57556
Lolium multiflorum
Andrew Pedersen; with Plant Biology 102
2007-4-29
5
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of State Routes 20 and 16. Meadow on the west side of State Route 16, ca. 2 road miles south of intersection with State Route 20. West side of Bear Creek, near confluence with Craig Creek.
304
Comment
JEPS80876
Lolium perenne
L. R. Heckard and J. C. Hickman
1980-7-3
5365 A
Colusa
sw slope Snow Mt. (grazed slopes about Summit Springs); sw slope of Snow Mt., about Summit Springs
1554
Comment
RSA0011990
Lolium perenne subsp. multiflorum
George K. Helmkamp, E. A. Helmkamp
2011-4-1
17119
Colusa
Antelope Valley, along Maxwell-Sites Road, 1.8 miles southeast of Sites
77
Comment
UCR233445
Lolium perenne subsp. multiflorum
George K. Helmkamp, E. A. Helmkamp
2011-4-1
17119
Colusa
Eastern Foothills North Coast Ranges, Antelope Valley, along Maxwell-Sites Road, 1.8 miles southeast of Sites
77
Comment
UC38800
Lolium temulentum
J. Burtt Davy
May, 1898
4293
Colusa
near Princetown
Comment
RSA424750
Lomatium
Aaron Liston, M. Blumler
1987-4-26
667 -7
Colusa
Bear Valley - Lodoga Road, 6.6 miles S of Bartlett Springs Jct.
Comment
UCD56941
Lomatium
Ellen Dean; Gordon Harrington and Kate Mawdsley
2007-3-30
3543
Colusa
BLM Payne Ranch. Southwest of intersection of Hwy. 16 and Hwy. 20. Thompson Canyon.
349
Comment
UCR206393
Lomatium
George K. Helmkamp, E. A. Helmkamp
2009-3-11
14374
Colusa
Inner North Coast Range Foothills, along CA-20, 14.3 miles southwest of Williams
375
Comment
CHSC91217
Lomatium californicum
D. Isle
2003-6-4
370
Colusa
Mendocino National Forest--North Coast Ranges. Middle Fork Stony Creek Watershed. 0.2 mi. W of M-10/M-5 jct. on N. edge of M-10.
621
Comment
UCD80835
Lomatium californicum
Ellen Dean; G. Harrington, J. Alderson, M. Bibbo, B. Rice
2009-3-25
5292
Colusa
BLM Bear Creek (Payne) Ranch, lands to the SW of the jct of Hwys 16 and 20. South side of canyon that is located to the north of Brophy Canyon.
274
Comment
CDA33705
Lomatium ciliolatum
P. Hiatt
1979-4-26
Colusa
North end of Bear Valley at Bartlett Springs Road.
0
Comment
CDA38340
Lomatium ciliolatum var. hooveri
T. C. Fuller
1958-5-27
s.n.
Colusa
South of Highway 20, 1 mile west of junction with Highway 16.
0
Comment
UCR261661
Lomatium dasycarpum
Ann Howald
2003-5-5
2330
Colusa
Inner North Coast Ranges, Goat Mountain Road, c. 0.25 mile west of intersection with Lodoga-Stonyford Road
394
Comment
CHSC91009
Lomatium dasycarpum subsp. tomentosum
D. Isle
2002-4-18
289
Colusa
Mendocino National Forest--North Coast Ranges. Middle Fork Stony Creek Watershed. N of Motorcycle info. Center and Fouts Spring Rd., above 18N01.2 jct. w/ OHV trail.
451
Comment
UC903739
Lomatium hooveri
Milo S. Baker
1947-4-6
11646
Colusa
near Hwy. 20 ca. 1 mi. e. Lake-Colusa Co. line
Comment
UCD163312
Lomatium hooveri
Craig D. Thomsen
1997-4-18
1901
Colusa
Bear Valley. About 6 miles north of Hwy 20. Vicinity of Trout Creek, north of Deadshot Canyon.
Comment
UCD56662
Lomatium hooveri
Sam Bledsoe
2007-3-25
2
Colusa
BLM Payne Ranch. Destinella Flat area, just E of the Lake County border, ca. 3.4 road miles along Hwy 20 from the junction of Hwy 16 and Hwy 20. South side of Hwy 20.
560
Comment
UCD56686
Lomatium hooveri
Gordon Harrington
2007-3-25
5
Colusa
BLM Payne Ranch. Destinella Flat area, just E of the Lake County border, ca. 3.4 road miles along Hwy 20 from the junction of Hwy 16 and Hwy 20. South side of Hwy 20.
558
Comment
UCSC010456
Lomatium hooveri
Dylan M. Neubauer, Tim Forsell
2016-3-31
601
Colusa
(NCoRI) Walker Ridge, Walker Ridge Road, 1.96 air-miles sse Cold Spring Mountain
820
Comment
UCD163700
Lomatium macrocarpum
Craig Thomsen
1999-5-10
2009
Colusa
Bear Valley. About 7 miles north of Hwy 20.
Comment
CDA33687
Lomatium macrocarpum
P. Hiatt
1979-4-26
Colusa
North end of Bear Valley at Bartlett Springs Road.
0
Comment
CHSC77910
Lomatium marginatum var. purpureum
Beth Hendrickson; Heidi West
1999-3-23
Colusa
Vicinity of Sites and Stone Corral Creek.
121
Comment
JEPS16220
Lomatium marginatum var. purpureum
Rimo Bacigalupi and Arthur Holmgren
1950-4-26
3172
Colusa
7.7 mi. w. Sites (Grapevine Grade to Lodoga)
Comment
UCD67095
Lomatium triternatum
Ellen Dean; Davis Botanical Society
2008-5-31
5024
Colusa
west of I-5 at Maxwell, Goat Mountain, ridge below summit off of Goat Mountain Road.
1734
Comment
JEPS17548
Lomatium utriculatum
Alice King
May, 1906
Colusa
College City
Comment
UC1053478
Lomatium utriculatum
Rimo Bacigalupi and Arthur Holmgren
1950-4-25
3177
Colusa
10 mi. n.w. Sites (Grapevine Grade to Lodoga)
Comment
UC630428
Lomatium utriculatum
Annetta Carter
1938-5-8
1387
Colusa
3 mi. n. Leesville (on Lodoga rd.); Inner N. Coast Range
Comment
UCD57859
Lomatium utriculatum
Gordon Harrington
2007-4-17
29
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of State Routes 20 and 16. Destanella Flat, just south of Hwy 20, approximately 3.4 road miles west of the Hwy 16 intersection.
553
Comment
UCD65645
Lomatium utriculatum
Craig D. Thomsen
2000-4-28
2182 -b
Colusa
Bear Creek Botanical Management Area. Caltrans right-of-way, on south side of Hwy 20, ca. 0.25 mile west of Hwy 20/16 instersection, near Colusa Co. milepost 3.00.
310
Comment
UCD40913
Lomatium utriculatum
Jim Mosby
1984-4-21
5
Colusa
Bear Valley, 10 miles north on Bear Valley Road.
426
Comment
CHSC86839
Lotus corniculatus
Jenny Marr; Heidi West, Caroline Warren, Natalie Wight
1998-6-11
Colusa
Vicinity of Funks Creek, Logan Ridge, Golden Gate, and Antelope Valley.
121
Comment
CHSC94444
Lotus corniculatus
Lowell Ahart
2006-8-9
13129
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
347
Comment
JEPS108723
Lotus corniculatus
Lowell Ahart
2006-8-9
13129
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford
347
Comment
JEPS80212
Lotus corniculatus
L. R. Heckard and J. Hickman
1980-7-3
5366
Colusa
sw slope Snow Mt. (about Summit Springs); , Summit Springs
1554
Comment
UCR227340
Lotus denticulatus
Craig D. Thomsen
2000-6-23
2385
Colusa
Bear Creek Botanical Management Area. Caltrans right-of-way, south side of Hwy 20, c. 0.5 mi west of Hwy 20/16 intersection (between mileposts 2.17 and 2.63)
325
Comment
JEPS80208
Lotus denticulatus
L. R. Heckard and J. Hickman
1980-7-3
5362
Colusa
n of (across road) Summit Springs (sw slope of Snow Mt., Lake-Colusa County boundary); Snow Mt.
1548
Comment
CDA15501
Lotus grandiflorus
G. F. Hrusa, Willie the Dog
1998-6-19
14638
Colusa
North Coast Ranges; Below Fouts Springs on Fouts Springs Rd. to Stonyford. Immed. below Candy Bucket Spring crossing.
Comment
JEPS60198
Lotus grandiflorus var. grandiflorus
L. R. Heckard
1969-5-28
2233
Colusa
on road above and w Fouts Springs
762
Comment
JEPS60204
Lotus grandiflorus var. grandiflorus
L. R. Heckard
1969-5-29
2240
Colusa
about 6.5 air mi se Stonyford (along Trough Spring Ridge road, 0.2 mi n of its junction with Crackerbox Ridge road)
1127
Comment
RSA516409
Lotus grandiflorus var. mutabilis
L. R. Heckard
1969-5-28
2236
Colusa
Along Trough Spring Ridge road 1/2 mile southwest of its junction with the Stonyford-Fouts Spring road (about 5 miles west of Stonyford).
732
Comment
HSC45721
Lotus humistratus
M. Alcasas
1978-4-22
45
Colusa
Bear Valley Rd., 1.5 mi. from its junction with Hwy. 20
412
Comment
UCR206894
Lotus humistratus
George K. Helmkamp, E. A. Helmkamp
2009-3-11
14363
Colusa
Inner North Coast Range Foothills, along CA-20, 9.7 miles southwest of Williams, on the north side of Salt Creek
162
Comment
POM163464
Lotus humistratus
Roxana S. Ferris
1926-4-23
6417
Colusa
At Mountain House on the Williams-Stonyford Road.
Comment
RSA725014
Lotus unifoliolatus
L. Ahart
2006-8-9
13150
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
348
Comment Read comments Aug 9 2017
UCD65956
Ludwigia hexapetala
B. J. Grewell
2006-9-15
06- 68 -LU
Colusa
Colusa National Wildlife Refuge, south of Hwy 20, west of Colusa and Sutter Buttes.
12
Comment
UCD78332
Ludwigia hexapetala
B. J. Grewell
2006-7-11
06- 17 -LU
Colusa
Delevan National Wildlife Refuge. Managed seasonal pond at SE corner of refuge, north of Maxwell Road, immediately west of Colusa Basin Drain.
17
Comment
UCD78320
Ludwigia peploides subsp. peploides
B. J. Grewell; Mike Wolder
2006-7-11
06- 16 -LU
Colusa
Colusa National Wildlfe Refuge, west of Colusa, CA. CNWR tract T24.8.
14
Comment
UC726672
Lupinus
A. A. Heller
1940-4-21
15542
Colusa
along U.S. Highway #99W, 2 mi s Williams
Comment
JEPS81378
Lupinus adsurgens
L. R. Heckard and J. C. Hickman
1982-7-8
5989
Colusa
1/4 mi sw East Peak (Snow Mt.); , sw of East Peak
2087
Comment
UCD82547
Lupinus albifrons
Ellen Dean; G. Harrington, C. Thomsen,R. Wilmarth,Chiao-Yi Cheng
2009-5-20
5702
Colusa
Walker Ridge. Along Walker Ridge just S of turn-off to picnic area near Cold Spring.
1007
Comment
POM163513
Lupinus albifrons var. albifrons
Roxana S. Ferris
1926-4-23
6422
Colusa
Near summit on grade. Williams- Stonyford Road.
Comment
POM299305
Lupinus albifrons var. albifrons
H. C. Cantelow
1940-3-10
s.n.
Colusa
11 miles west of Williams.
Comment
UCD83747
Lupinus albifrons var. collinus
Ellen Dean; G. Harrington, K. Mawdsley, J. Shepard
2010-5-1
5945 a
Colusa
Walker Ridge. Along Walker Ridge Road at intersection with road to Eaton Springs. Roadside, on E side of road.
927
Comment
NY15769
Lupinus albipilosus
A. A. Heller
1940-4-21
15543
Colusa
Border of a field along U. S. Highway #99W, 2 miles south of Williams, in the Lower Sonoran LIfe Zone.
Comment
HSC89740
Lupinus bicolor
B. Hoffman, A. Eller, A. Smith
1989-4-15
24
Colusa
Off Bear Valley Rd., 1.2 mi. S of Brim Rd.
396
Comment
SEINET12164083
Lupinus densiflorus
Unknown
1984-1
11
Colusa
ca Salt Canyon, N side of Salt Crk, Hwy 20, 11miWSW of Williams. Wilbur Springs Quad
143
Comment
HSC45663
Lupinus densiflorus var. aureus
Howee Barban
1978-4-22
16
Colusa
Bear Valley Rd., 1.5 mi. from its junction with State Route 20
412
Comment
SEINET10485227
Lupinus densiflorus var. aureus
Clemens
1977-4-16
CLEMENS 17
Colusa
Moderate population, salt creek canyon, n side of salt creek, hwy 20, 10 mi w-sw of williams. Wilbur springs quad, t.15n, r.4w, sec.32, 15 ft e central border. Open bank along roadside.
143
Comment
SEINET12161687
Lupinus densiflorus var. aureus
Unknown
1977-1
20
Colusa
ca 10 m N of Salt Creek, Salt Canyon, Hwy 20, 16kmWSW of Williams. WilburSpringsQuad. seebelow
143
Comment
SEINET9296972
Lupinus densiflorus var. densiflorus
Unknown
2009-5-20
14736
Colusa
Glasscock Mountain
Comment
RSA424726
Lupinus densiflorus var. palustris
Aaron Liston, M. Blumler
1987-4-26
668 -1
Colusa
East Park Reservoir, 3.2 miles E of Stonyford
Comment
CAS-BOT-BC8379
Lupinus formosus var. robustus
Amos Arthur Heller
1940-4-21
15543
Colusa
US Hwy 99W, 2 miles S of Williams
Comment
UC1299680
Lupinus luteolus
Freed W. Hoffman
1949-9-25
3151
Colusa
Bear Valley; North Coast Ranges, Bear Valley
Comment
UC763972
Lupinus luteolus
R. F. Hoover
1938-6-11
3595
Colusa
Williams-Lake Co. highway at junction Wilbur Sprs road
Comment
OBI71991
Lupinus luteolus
Barbara Ertter
1989-7-1
8616
Colusa
Rd to Goat Mt Lookout 0.4 mi S of Rt M-10 (Bear Crk-Fouts Spring Rd) at head of S Fk Stony Crk, ca 12 airmiles WSW of Stonyford; T17N R8W
1372
Comment
RSA716572
Lupinus microcarpus
D. Isle
1995-4-27
403
Colusa
East Park Reservoir Rd. at N edge just at rt. angle turn, w. of cattle guard 1/4 mi.
348
Comment
CDA27487
Lupinus microcarpus var. densiflorus
L. Ahart
2003-7-14
10390
Colusa
On the east and west sides of Bear Valley Road, about 1/4 mile north of the intersection of Bear Valley Road and Wilber Springs Road and bridge.
Comment
CHSC42238
Lupinus microcarpus var. densiflorus
Steve Holloway
1986-4-5
4
Colusa
Salt canyon, s side of Salt Creek, Hwy 20 11 mi wsw of Williams.
143
Comment
CHSC91128
Lupinus microcarpus var. densiflorus
D. Isle
1997-7-31
334
Colusa
Mendocino National Forest--North Coast Ranges. Bear Creek Watershed. S end of Bear Valley Rd.
243
Comment
UC726766
Lupinus microcarpus var. densiflorus
A. A. Heller
1940-5-6
15576
Colusa
on steep clay banks along State Hwy #20 about 3 mi e junction with Highway #16
Comment
UCD57462
Lupinus microcarpus var. densiflorus
Ellen Dean; W. Murray, J. Alderson, B. Weiss, M. Starbuck
2007-4-7
3642
Colusa
Payne Ranch (owned by BLM), lands just west of Hwy 16, about 2 road miles south of junction of Hwy 20 and Hwy 16. Mouth of Craig Canyon, along unimproved road.
316
Comment
UC614851
Lupinus microcarpus var. densiflorus
Beryl O. Schreiber
1932-4-3
223
Colusa
road to Williams; road to Williams
Comment
UCD57053
Lupinus microcarpus var. microcarpus
Ellen Dean; C. Thomsen, S. Bledsoe, J. Alderson, M. Starbuck
2007-4-7
3641
Colusa
BLM Payne Ranch, mouth of Craig Canyon, along unimproved road, about 2 road miles south of junction of Hwy 20 and Hwy 16. .
316
Comment
UCD64426
Lupinus microcarpus var. microcarpus
Craig D. Thomsen
2000-4-28
2199
Colusa
Bear Creek Botanical Management Area. On Caltrans right-of-way, south side of Hwy 20, 0.25 mile west of Hwy 20/16 instersection, Colusa Co. milepost 3.00.
310
Comment
UCD33935
Lupinus nanus
Beecher Crampton
1958-4-21
9166
Colusa
1 mile west of Lodoga.
Comment
HSC86906
Lupinus subvexus var. subvexus
Terry Hines, Ellen Purcell, N. Williams
1988-4-17
58
Colusa
1.3 mi. S on Bear Valley Rd. from corner of Brim Rd.
396
Comment
CHSC90384
Lupinus succulentus
Martin Polsan
1988-4-9
16
Colusa
Salt Canyon, n side of Salt Creek, Hwy 20, 11 mi wsw of Williams.
143
Comment
HSC45690
Lupinus succulentus
Patricia Shesgreen
1978-4-22
28
Colusa
Bear Valley Rd., 1.5 mi. from its junction with Hwy. 20
412
Comment
SEINET7096535
Lupinus succulentus
Richard R. Halse
2001-3-22
5947
Colusa
Williams; along a vacant lot by 455 - 4th street. 39 9.52N 122 8.84W (Converted to decimal degrees). Elevation 18 m.
18
Comment
UCD56925
Lupinus succulentus
Ellen Dean; Gordon Harrington and Kate Mawdsley
2007-3-30
3528
Colusa
BLM Payne Ranch. Southwest of intersection of Hwy. 16 and Hwy. 20. Near headwaters of Craig Canyon.
359
Comment
UCR233449
Lupinus succulentus
George K. Helmkamp, E. A. Helmkamp
2011-4-1
17123
Colusa
Eastern Foothills North Coast Ranges, Antelope Valley, along Maxwell-Sites Road, 0.4 miles southeast of Sites
93
Comment
HSC89693
Lupinus succulentus
William E. Avery, Mathew Henry Bergvall-Mensor, Steve Wilson
1989-4-15
Colusa
Walker Ridge Rd., 3 mi. W of Bear Valley Rd.
457
Comment
POM276532
Lupinus succulentus
Lyman D. Benson
1935-3-27
6336
Colusa
2 mi W of Williams. Inner N Coast mtn range, Sacramento River watershed.
122
Comment
RSA276282
Lupinus vallicola subsp. apricus
Lyman D. Benson
1935-3-27
6333
Colusa
2 mi W of Williams. Inner N Coast mtn range, Sacramento River watershed.
122
Comment
CDA5761
Lycium barbarum
G. D. Barbe
1975-10-23
2091
Colusa
7th and Market Streets, Colusa.
0
Comment
UCD163325
Lycium barbarum
Craig D. Thomsen
1997-4-19
1908
Colusa
Wilbur Springs. About 4 miles north of Hwy 20. Vicinity of Blank Spring, about 0.75 miles west of Wilbur Hot Springs hotel, adjacent to Sulphur Creek.
Comment
CHSC86827
Lythrum hyssopifolia
Jenny Marr; Heidi West, Caroline Warren
1998-7-1
Colusa
Vicinity of Sites, Golden Gate, Stone Corral Creek, and Funks Creek. Vernal pools.
103
Comment
RSA0015862
Lythrum hyssopifolia
L. Ahart
2006-8-9
13161
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
348
Comment
CHSC115003
Lythrum tribracteatum
Lowell Ahart
2015-4-28
20113
Colusa
North side of Maxwell-Colusa Road, about 5 1/2 miles east of Maxwell.
53
Comment
OBI71983
Lythrum tribracteatum
Barbara Ertter, Elizabeth Neese, Laura Fujii, Dawn Espindola
1989-10-21
8870
Colusa
SE end of East Park Reservoir N of Lodoga
366
Comment
UCD102948
Lythrum tribracteatum
H. L. Mason
1945-7-11
12645
Colusa
Butte Lodge Outing Club, 3 miles above Colusa, near Butte Creek.
Comment
UCD66865
Lythrum tribracteatum
Ellen Dean; G. Harrington, J. Alderson, E. Bayon, R. Willmarth
2008-6-8
5068
Colusa
BLM Payne Ranch. Lands to the southwest of the intersection of Hwy 16 and Hwy 20. Northwest corner of ranch. Along ridge trail on the border of Lake and Colusa counties. East side of trail around stock pond.
609
Comment
JEPS117019
Lythrum tribracteatum
David Gowen
2008-5-24
925
Colusa
West of Sites on north side of road.
Comment
RSA0016023
Lythrum tribracteatum
Barbara Ertter, E. Neese, Laura Fujii, Dawn Espindola
1989-10-21
8870
Colusa
SE end of East Park Reservoir N of Lodoga.
366
Comment
JEPS108735
Madia elegans subsp. densifolia
Lowell Ahart
2006-8-9
13095
Colusa
Gravel bar on the south side of Stony Creek, at Mine Camp, about 3 1/2 miles (air) west of Stonyford
455
Comment
UCR258102
Madia elegans subsp. elegans
Bart O'Brien
1991-9-11
s.n.
Colusa
Central Western; Inner North Coast Ranges, Bear Valley Rd., 9.5 miles north of Old Wilbur [Springs] Rd. turnoff
409
Comment
CHSC79466
Madia exigua
B. Castro; L. P. Janeway
2000-5-2
1106
Colusa
Vicinity of Sites, Sites-Lodoga Rd, and Grapevine Creek.
216
Comment
RSA755624
Madia exigua
George K. Helmkamp, E. A. Helmkamp
2009-5-20
14741
Colusa
Along CA-16 near Bear Creek, 1.6 miles south of the junction with CA-20
320
Comment
UCD66678
Madia exigua
Craig D. Thomsen
2000-5-11
2302
Colusa
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.
325
Comment
JEPS38333
Madia exigua
W. L. Jepson
1938-6-9
18961
Colusa
mts. between Indian Valley (Lake Co.) Bear Valley (Colusa Co.)
579
Comment
CHSC86127
Madia gracilis
Jenny Marr; Julie Cunningham, Heidi West, Caroline Warren
1998-5-27
Colusa
Vicinity of Antelope Valley, Antelope Creek, and Huffmaster Road.
121
Comment
UCD159852
Madia hallii
G. Ledyard Stebbins
1985-4-19
C 503
Colusa
South end of Walker Ridge, along Walker Ridge Road, 0.25 miles northeast of its junction with road to Indian Valley Dam. (Note by label-maker: Section 12 is farther than 0.25 miles NE of road to Indian Valley Dam. Georeferenced this record in Section 13).
Comment
UCD66442
Madia sativa
Craig D. Thomsen
2000-4-28
2191
Colusa
Bear Creek Botanical Management Area. Caltrans right-of-way, on south side of Hwy 20, ca. 0.25 mile west of Hwy 20/16 instersection, near Colusa Co. milepost 3.00.
310
Comment
UC725449
Malacothamnus fremontii
A. A. Heller
1940-6-7
15719
Colusa
below the road near the foot of the grade e Lodoga; Sites-Lodoga road
Comment Read comments Sep 25 2006
UCD81259
Malacothamnus fremontii
Ellen Dean; G. Harrington, R. Willmarth, B. Rice, and C. Thomson
2009-4-8
5424
Colusa
BLM Bear Creek (Payne) Ranch. Lands to the SW of the intersection of Hwys. 16 and 20. Just north of the road leading up from the confluence of Bear and Cache Creeks.
323
Comment
UCD82630
Malacothamnus fremontii
Jack Alderson
2009-8-6
26
Colusa
BLM Bear Creek (formerly Payne) Ranch. Lands to the SW of junction of Hwys 16 and 20. Southern part of the ranch, just N of confluence of Bear and Cache Creeks.
243
Comment
UC768593
Malacothrix clevelandii
R. F. Hoover
1938-4-24
3212
Colusa
Upper Sand Creek
Comment
CAS-BOT-BC347385
Malacothrix floccifera
Alice Eastwood; John Thomas Howell
1938-5-16
5635
Colusa
Lake-Colusa Co. line on road to Williams
Comment
CAS-BOT-BC347387
Malacothrix floccifera
unspecified
1936-4-11
s.n.
Colusa
Bear Creek Canyon
Comment
CDA11410
Malacothrix floccifera
G. F. Hrusa, K. van Katwyk
1995-4-22
12131
Colusa
Inner North Coast Ranges; Leesville Rd. at summit of ridge immed. E of N end of Bear Valley.
Comment
CHSC8145
Malacothrix floccifera
J. G. Moore
1969-4-12
93
Colusa
Hwy 20, 0.5 mi. w of junction with Hwy. 16.
228
Comment
CHSC86522
Malacothrix floccifera
B. Castro; Beth Hendrickson
2003-3-19
1393
Colusa
Vicinity of Sites, hills N of the Sites-Lodoga Rd, and Stone Corral Creek.
243
Comment
JEPS120980
Malacothrix floccifera
Lowell Ahart, John Dittes, Josephine Guardino
2013-4-26
18627
Colusa
On N side of Hwy 20, just E of Lake County Line, 12.2 air miles ENE of town of Clear Lake, 17.1 air miles W of Williams.
Comment
JEPS16207
Malacothrix floccifera
Rimo Bacigalupi and Arthur Holmgren
1950-4-26
3185
Colusa
just w Bear Valley (just w of base of the grade to Indian Valley (Bartlett Mt. Grade)); Inner North Coast Ranges
Comment
UC1613354
Malacothrix floccifera
Charles M. Belshaw
1937-4-1
2854
Colusa
Vicinity of Cook's Spring Inner North Coast Range, Devil's Ridge
Comment
RSA669479
Malva parviflora
R. R. Halse
2001-3-22
5945
Colusa
Williams; along a vacant lot by 455-4th Street.
18
Comment
CHSC86831
Malvella leprosa
Jenny Marr; Heidi West, Caroline Warren
1998-7-1
Colusa
Vicinity of Sites, Golden Gate, Stone Corral Creek, and Funks Creek. Drainage.
103
Comment
CHSC88532
Malvella leprosa
B. Castro; David Grant, Aric Lester
2003-9-29
1443
Colusa
Vicinity of Antelope Valley, Antelope Creek and Huffmaster Road. On SSE-facing bank in sharp bend of creek.
160
Comment
UC573258
Malvella leprosa
H. S. Yates
1936-8-14
6130
Colusa
3 mi. s. Colusa; Colusa Quad.
15
Comment
CDA32964
Malvella leprosa
Doug Barbe & Phyllis Hiatt
1979-5-2
Colusa
Williams; waste ground by Shell station.
0
Comment
RSA121079
Malvella leprosa
H. S. Yates
1936-8-14
6130
Colusa
3 miles S. of Colusa
15
Comment
CHSC116053
Marah fabacea
Richard R. Halse
2014-3-25
9029
Colusa
Along the Sites-Logoda Road ca. 4.7 miles northeast of Logoda; on the west end of Grapevine Pass.
527
Comment
POM284892
Marah fabacea
Lyman Benson
1935-3-27
6337
Colusa
2 mi W of Williams. Inner N Coast mtn range, Sacramento River watershed.
122
Comment
SEINET11990999
Marah oregana
R. A. DeMartile
1983-1
106
Colusa
Goat Mountain Rd
914
Comment
JEPS95245
Marah watsonii
Steve Edwards
1996-4-26
Colusa
Walker Ridge NE of Barrel Springs, on serpentinite scree visible immediately S of Brim Grade, E of Walker Ridge Road and not far below the latter in elevation
Comment
UC903736
Marah watsonii
Milo S. Baker
1947-4-6
11644
Colusa
less than 1 mi e Colusa-Lake Co. boundary (along Hiway 20)
Comment
UCD66689
Marah watsonii
Craig D. Thomsen
2000-5-11
2319
Colusa
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.
325
Comment
CHSC118890
Marah watsonii
Glenn Keator
1966-4-24
Colusa
Junction of Rail Canyon Road and Sites-Lodoga Road.
Comment
POM174574
Marah watsonii
Roxana S. Ferris
1926-4-23
6593
Colusa
On Grapevine Grade; Stonyford-Sites Road.
Comment
CHSC84939
Marsilea vestita subsp. vestita
Lowell Ahart
2003-10-23
10669
Colusa
On the east strand of East Park Reservoir, about 1/8 mile northwest of Sites Lodoga Road, about 1 mile north of Lodoga, about 21 miles west of Maxwell.
368
Comment
UC89518
Matricaria discoidea
T. S. Brandegee
April 1889
Colusa
Colusa Junction
Comment
UCD107748
Medicago lupulina
Helen K. Sharsmith
1953-6-20
4298
Colusa
Slopes of Little Stoney Creek, Mendocino National Forest. Inner north coast ranges.
762
Comment
UCD72532
Medicago minima
Ellen Dean; J. Alderson, N. Voegtly, and C. Thomsen
2007-5-12
3823
Colusa
BLM Payne Ranch, lands to the SW of jct of Hwys 16 and 20. Area of ranch west of Hwy 16, near bridge that spans Bear Creek, ca. 4.5 road miles south of junction of Hwy 16/20. West side of Bear Creek, ca. 0.5 mile downstream of bridge.
246
Comment
UCR212379
Medicago minima
Ellen Dean, Craig D. Thomsen, N. Voegtly, J. Alderson, Gordon Harrington
2008-3-30
4683
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwys 20 and 16. Along west side of Bear Creek, just north of Eula Canyon.
313
Comment
SEINET255529
Medicago polymorpha
Richard R. Halse
2007-3-22
7103
Colusa
Williams; by junction of 5th Street and B Street.
25
Comment
UCR206895
Medicago polymorpha
George K. Helmkamp, E. A. Helmkamp
2009-3-11
14361
Colusa
Sacramento Valley, along CA-20, 1.6 miles southwest of Colusa and just north of Colusa National Wildlife Refuge
15
Comment
UCR205147
Medicago sativa
George K. Helmkamp, E. A. Helmkamp
2008-10-14
14253
Colusa
Sacramento Valley, along CA-20, 0.2 mile east of the Sutter County line
9
Comment
UCD107923
Medicago sativa
Beecher Crampton
1963-8-5
6872
Colusa
3.5 miles south of Grimes.
Comment
CHSC100246
Melica californica
D. Isle
1988-4-13
1507
Colusa
Mendocino National Forest - North Coast Ranges. Middle Fork Stony Creek Watershed. West of Fouts Springs youth facility; Approx. 1 mile west of current gate on Rd to Bathhouse Trail; East of road and E of Trout Ck Trailhead; Within fenced exclosure burned during 1987 Fouts Fire.
609
Comment
UCR119121
Melica californica
Beecher Crampton
1958-4-21
4730
Colusa
Inner North Coast Ranges, 7.8 miles northwest of Rumsey, along Highway 16, just above junction of Bear Creek with Cache Creek.
381
Comment
CHSC100245
Melica harfordii
D. Isle
1988-4-13
1508
Colusa
Mendocino National Forest - North Coast Ranges. Middle Fork Stony Creek Watershed. West of Fouts Springs youth facility; Approx. 1 mile west of current gate on Rd to Bathhouse Trail; East of road and E of Trout Ck Trailhead; Within fenced exclosure burned during 1987 Fouts Fire.
609
Comment
JEPS80810
Melica harfordii
L. R. Heckard and J. C. Hickman
1981-7-31
5783
Colusa
Fouts Springs Overlook Snow Mt. (e side of Snow Mt.)
1813
Comment
UCD63920
Melica torreyana
Craig D. Thomsen
2001-5-24
2510
Colusa
Bear Creek Botanical Management Area. Caltrans right-of-way on south side of Hwy 20, about 0.5 mile west of Hwy 20/16 instersection (between Colusa Co. mileposts 2.17 and 2.25).
342
Comment
UCD88843
Melica torreyana
Beecher Crampton
1958-5-19
4816
Colusa
West of Lodoga.
Comment
CHSC94289
Mentha canadensis
Lowell Ahart
2006-8-9
13090
Colusa
On the south side of Stony Creek, at Mine Camp, about 3 1/2 miles (air) west of Stonyford.
455
Comment
JEPS80116
Mentzelia dispersa
L. R. Heckard with J. Hickman
1980-7-1
5274
Colusa
Flat at summit of East Peak. Snow Mt.; Colusa-Lake County Boundary
2148
Comment
CDA36623
Mentzelia laevicaulis
R. Lawley
Colusa
Mendocino National Forest, Stonyford.
0
Comment
UC1051549
Mentzelia laevicaulis var. laevicaulis
Helen K. Sharsmith
1953-6-21
4306
Colusa
ca 1 mi within boundary of Mendocino National Forest (Slopes of Little Stoney Creek); Inner North Coast Ranges
670
Comment
UCD163868
Micranthes californica
Craig D. Thomsen
2001-4-12
2465
Colusa
Bear Creek Canyon, first tributary above Sulphur Creek confluence with Bear Creek. About 3 miles north of Hwy 20.
Comment
CAS-BOT-BC479709
Micropus californicus
Ann Howald
2003-4-23
2310
Colusa
Inner North Coast Ranges: Indian Valley, East Park Reservoir, Catholic Point peninsula, west of Coppermine Road, c. 0.05 mi N of intersection with East Ruby King Rd
428
Comment
CDA32824
Micropus californicus
P. Hiatt
1979-4-26
Colusa
North end of Bear Valley at Bartlett Springs Road.
0
Comment
CAS-BOT-BC348362
Micropus californicus var. californicus
Roxana S. Ferris
1917-4-14
573
Colusa
Foothills 7 mi west of Arbuckle, Arbuckle - Rumsey Road
Comment
CHSC79254
Micropus californicus var. californicus
B. Castro; L. P. Janeway
2000-4-10
1065
Colusa
Vicinity of Sites in rolling hills near Sulphur Gap, among un-named tributaries to Lurline Creek.
106
Comment
UCD82822
Micropus californicus var. californicus
Craig Thomsen; G. Harrington
2009-5-12
2844
Colusa
Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd.
707
Comment
JEPS120972
Microseris douglasii
Lowell Ahart, John Dittes, Josephine Guardino
2013-4-26
18628
Colusa
On N side of Hwy 20, just E of Lake County Line, 12.2 air miles ENE of town of Clear Lake, 17.1 air miles W of Williams.
Comment
CHSC70968
Microseris douglasii subsp. douglasii
Vernon Oswald; Lowell Ahart
1998-5-7
8999
Colusa
Bartlett Springs Rd. 2.1 mi west of Bear Valley Rd., 0.8 mi east of Sawtelle Valley and Grapevine Flat roads.
524
Comment
CHSC86872
Microseris douglasii subsp. douglasii
B. Castro
2003-4-3
1413
Colusa
Vicinity of Sites, Golden Gate, and Funks Ck.
82
Comment
UCD56919
Microseris douglasii subsp. tenella
Ellen Dean; Gordon Harrington and Kate Mawdsley
2007-3-30
3522
Colusa
BLM Payne Ranch. Southwest of intersection of Hwy. 16 and Hwy. 20. In Craig Canyon.
334
Comment
CHSC89880
Microseris sylvatica
B. Castro; L. Janeway
2001-5-10
1249
Colusa
Vicinity of Grapevine Creek, Antelope Creek, and Pence Mtn. Near dirt road paralleling N-S-trending perennial creek, at the blue oak-grassland edge on moderately steep E-facing slope
405
Comment
JEPS94209
Microseris sylvatica
Vernon Oswald and Lowell Ahart
1998-5-7
8991
Colusa
Lodoga-Leesville Road 4.3 mi s of Cooks Springs Road; Lodoga-Leesville Road
469
Comment
UCD143422
Microsteris gracilis
Oren Pollak
1987-4-10
s.n.
Colusa
Bear Valley.
Comment
CHSC108158
Mimetanthe pilosa
David Isle; Rhonda Isle
2010-7-21
1915
Colusa
Mendocino National Forest - North Coast Ranges Middle Fork Stony Creek Watershed. West shoreline of East Park Reservoir on bank just north of spillway; Within 2 to 4 ft of water line.
365
Comment
CHSC94312
Mimetanthe pilosa
Lowell Ahart
2006-8-9
13105
Colusa
Gravel bar on the south side of Stony Creek, at Mine Camp, about 3 1/2 miles (air) west of Stonyford.
422
Comment
CHSC94497
Mimetanthe pilosa
Lowell Ahart
2006-8-9
13113
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
347
Comment
SBBG119885
Mimetanthe pilosa
L. Ahart
2006-8-9
13113
Colusa
N side and under bridge across Stony Crk, just N of Stonyford
347
Comment
JEPS73486
Mimulus
L. R. Heckard
1972-7-9
3098
Colusa
se slope East Peak; Snow Mt.
2072
Comment
JEPS86644
Mimulus arvensis
L. R. Heckard with P. C. Silva, R. L. and M. Moe
1988-6-19
6715
Colusa
0.5 mi w Summit Springs (sw flank of mountain); Snow Mountain, Colusa-Lake County line
Comment
UCD82625
Mimulus bolanderi
Craig Thomsen; G. Harrington
2009-5-12
2895
Colusa
Colusa County on Walker Ridge: from spur road about 1/2 mile east of Walker Ridge Road, en route to Eaton Springs. About 200 yds.south off spur road, south-facing hillslope above ravine and spring area.
813
Comment
POM21052
Mimulus cardinalis
Roxana Stinchfield
1916-7-9
417
Colusa
Philip's Ranch, near Sycamore.
Comment
RSA535823
Mimulus douglasii
David M. Thompson
1988-3-28
860
Colusa
2.0 mi W of Bear Valley Road along Bartlett Springs Road. 0.25 mi W of a road culvert for a small stream.
534
Comment
UCD122617
Mimulus douglasii
Delanne Belshaw
1975-4-20
11
Colusa
Bear Valley Road, 7.8 miles north of junction of State Highways 20 and 16.
Comment
JEPS80762
Mimulus floribundus
L. R. Heckard and J. C. Hickman
1981-7-30
5729
Colusa
crossing Trout Creek (se side of mt.); Snow Mt.
1828
Comment
CDA41790
Mimulus guttatus
L. Ahart
2003-7-14
10383
Colusa
On the south side of Highway 20, about 2 miles southwest of the intersection of Highway 20 and Bear Valley Road, about 21 miles (by road) southwest of Williams.
Comment
JEPS121117
Mimulus guttatus
Lowell Ahart
2013-5-1
18688
Colusa
N of the wash and Hwy 20, just E of Lake County line, 12.2 air miles ENE of the town of Clear Lake, 17.1 air miles W of Williams.
Comment
RSA0118612
Mimulus guttatus
Lowell Ahart
2013-5-1
18688
Colusa
Inner North Coast Range. North of the wash and State Highway 20, just east of Lake County Line, 12.2 miles (air) east-northeast of Clear Lake (town), 17.1 miles (air) west of Williams.
566
Comment
UCD64424
Mimulus guttatus
Craig D. Thomsen
2000-4-28
2187
Colusa
Bear Creek Botanical Management Area. On Caltrans right-of-way, south side of Hwy 20, 0.25 mile west of Hwy 20/16 instersection, Colusa Co. milepost 3.00.
310
Comment
UCD82504
Mimulus guttatus
Craig Thomsen; G. Harrington
2009-5-12
2864
Colusa
Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd.
710
Comment
UC1212581
Mimulus layneae
Francia Chisaki, Helen K. Sharsmith
1959-5-27
1338
Colusa
about 1/4 mi e Cooks Spring; Inner North Coast Ranges, Cooks Creek
Comment Read comments Nov 19 2007
UC971992
Mimulus layneae
Herbert L. Mason
1952-6-19
14305
Colusa
Black Diamond Ridge Mendocino National Forest
609
Comment
RSA114162
Mimulus layneae
H. K. Sharsmith
1953-6-20
4290
Colusa
5 miles beyond Trough Springs on road to Goat Mountain, Mendocino National Forest.
1280
Comment
JEPS104385
Mimulus microphyllus
Lowell Ahart
2003-7-14
10383
Colusa
Along a stream, field on the south side of Highway 20, ca 2 mi sw of the intersection of Highway 20 and Bear Valley Rd, ca 21 mi (by road) sw of Williams.
520
Comment
UC1191131
Mimulus microphyllus
Herbert L. Mason
1953-5-5
14519
Colusa
0.25 above junction of Little Stoney Creek and Trout Creek (at sharp bend in road); Little Stoney Creek drainage
Comment
UC726324
Mimulus microphyllus
A. A. Heller
1940-5-14
15619
Colusa
4 mi n Maxwell
Comment
UCD122648
Mimulus microphyllus
R. A. Christison
1960-4-17
28
Colusa
on road to Wilbur Springs, 2 miles north of State Highway 20.
Comment
HSC96797
Mimulus nudatus
L. Ahart
2006-6-11
12663
Colusa
E side of an off road trail (Trail 30), about 100 yards S of Fouts Rd., about 5 mi. W of Stonyford
613
Comment
RSA296392
Mimulus nudatus
Robert F. Hoover
1941-5-2
4982
Colusa
Just east (about 6 miles S of Wilbur Springs) of Lake Co. line on Williams-Clear Lake Hwy
Comment
UC1334723
Mimulus nudatus
Eugene Memmler
1969-5-8
101
Colusa
ca. 1 mi e Lake County line (along State Hwy 20 from Williams); Bear Creek
457
Comment
UCD66858
Mimulus nudatus
Ellen Dean; G. Harrington, J. Alderson, E. Bayon, R. Willmarth
2008-6-8
5061
Colusa
BLM Payne Ranch. Lands to the southwest of the intersection of Hwy 16 and Hwy 20. Destinella Flat. Serpentine meadow on the east side of main drainage.
554
Comment
RSA0118631
Mimulus pilosus
Lowell A. Ahart
2013-10-1
19072
Colusa
Strand of East Park Reservoir, about 2.5 miles (air) southeast of Stonyford, about 2.5 miles northwest of Lodoga, about 10 miles (air) northwest of Sites.
365
Comment
JEPS60201
Mimulus rattanii
L. R. Heckard
1969-5-29
2237
Colusa
about 6 1/2 air mi se Stonyford (along Trough Spring Ridge road, 0.2 mi n of its junction with Crackerbox Ridge road)
1127
Comment
UC1614402
Minuartia cismontana
Charles M. Belshaw
1937-4-25
2833
Colusa
vicinity of Cook's Spring (Devil's Ridge); Inner N. Coast Range, Devil's Ridge
Comment
HSC45718
Minuartia douglasii
Sheila Logan
1978-4-22
59
Colusa
Bear Valley Rd., 1.5 mi. from its junction with Hwy. 20
412
Comment
UCD57309
Minuartia douglasii
Ellen Dean; C. Thomsen, S. Bledsoe, J. Alderson, M. Starbuck
2007-4-7
3680
Colusa
BLM Payne Ranch. Lands to the southwest of junction of Hwy. 20 and Hwy. 16. Thompson Canyon, near juncture with Craig Canyon.
362
Comment
UCD15429
Minuartia douglasii
Margit Sands
1985-4-13
33
Colusa
in Bear Valley, 7.4 miles north of Wilbur Hot Springs rd., a quarter of a mile form the west side of the road;
396
Comment
CHSC91050
Minuartia nuttallii subsp. gregaria
D. Isle
2003-6-12
362
Colusa
Mendocino National Forest--North Coast Ranges. Little Stony Creek Watershed. Goat Mt.--meadow 1/4 mi. below road N80 E from jct. of Rd. to Goat Mt. lookout and Horse Glade Rd. GPS: 10S 0524032E 4346780N.
1645
Comment
JEPS81413
Minuartia nuttallii subsp. gregaria
L. R. Heckard and J. C. Hickman
1982-7-9
6021
Colusa
just e Lookout (Colusa-Lake Co. boundary); Goat Mt.
1859
Comment
CHSC92630
Minuartia nuttallii var. gregaria
D. Isle
1999-7-14
1287
Colusa
Mendocino National Forest--North Coast Ranges. Middle Fork Stony Creek Watershed. Approx. 1/3 mile below jct. 16N18/16N03 (1/4 mi. below Lake/Colusa Co. Line in Colusa Co. GPS: 10S 0522970 E 4347039 N; Spr 25' South.
1688
Comment
CAS-BOT-BC229599
Mirabilis greenei
Volney Rattan
1884-6-1
s.n.
Colusa
Coast Mountains N of San Francisco Bay. Flood-bed of Stony Creek
Comment
CAS-BOT-BC435026
Mollugo verticillata
Edward Lee
1934-8-9
1010
Colusa
Four miles north of Willows, Sacramento Valley
Comment
CHSC64094
Monardella glauca
David Isle
1992-8-3
Colusa
Snow Mountain.
Comment
JEPS80272
Monardella odoratissima subsp. glauca
L. R. Heckard and J. Hickman
1980-9-16
5455
Colusa
East of West Peak (first meadow along trail from Frog Pond in cirque area); Snow Mt.
1981
Comment
CAS-BOT-BC220675
Monardella villosa
A. A. Heller
1916-6-6
12355
Colusa
Coast Range on the grade about 3 miles west of Leesville
Comment
CHSC83196
Monardella villosa
D. Sanchez-Mata
1996-6-27
Colusa
Williams. Blue Ridge. In Bear Creek.
Comment
UCD80833
Monardella villosa
Ellen Dean; G. Harrington, J. Alderson, M. Bibbo, B. Rice
2009-3-25
5290
Colusa
BLM Bear Creek (Payne) Ranch, lands to the SW of the jct of Hwys 16 and 20. Canyon to the north of Brophy Canyon, ca. 100 ft from entrance at Bear Creek.
233
Comment
CHSC48492
Monardella villosa subsp. villosa
Vernon Oswald
1986-6-30
2172
Colusa
Fouts Spring Rd. (M10) at Candy Bucket Spring, 6.0 mi w of Rd. 306, 0.4 mi e of jct. John Smith Rd. (M5).
609
Comment
RSA781217
Monardella villosa subsp. villosa
Mark A. Elvin, David Isle, Mark S. Brunell
2006-8-3
4991
Colusa
Mendocino National Forest, east face of Snow Mountain, Stony Creek along M10
610
Comment
UCR261722
Monardella villosa subsp. villosa
Ann Howald
2003-5-30
2356 A
Colusa
Inner North Coast Ranges, Indian Valley, east side of East Park Reservoir, c. 3 miles north of Lodoga, ridge west of Serenity camping area
373
Comment
CAS-BOT-BC349575
Monolopia major
Ethel Crum
1938-5-8
2035
Colusa
Bear Valley, four miles south of Leesville
426
Comment
CAS-BOT-BC349577
Monolopia major
Ethel Crum
1938-5-8
2035
Colusa
Bear Valley, four miles south of Leesville
426
Comment
UC618924
Monolopia major
R. F. Hoover
1938-4-24
3223
Colusa
Venado
Comment
UCD163879
Monolopia major
Craig D. Thomsen
2002-3-27
2574
Colusa
Bear Creek Botanical Management Area. Caltrans right-of-way on south side of Hwy 20, about 0.5 mile west of Hwy 20/16 instersection.
Comment
UC90430
Monolopia major
K. Brandegee
April 1889
Colusa
Comment
UCD50183
Muhlenbergia andina
Craig D. Thomsen; Art Shapiro
2004-9-16
s. n.
Colusa
In large patch in roadcut along Goat Mountain Road, Colusa County.
Comment
CAS-BOT-BC83274
Myosurus minimus
Herbert L. Mason
1953-4-5
14508
Colusa
Three miles east of Maxwell.
Comment
UC1101350
Myosurus minimus
Herbert L. Mason
1953-4-5
14509
Colusa
3 mi e of Maxwell
Comment
UCD18836
Myosurus minimus
Vernal Pool Team 2001; Carol Witham and Jennifer Buck
2001-4-30
143
Colusa
2 mi. south of the town of Colusa along Hwy 20, east of Hwy 20 and the Colusa Airport, Dolan Ranch site, pool # DOL001, UTMs: 10S0587786; 4336302.
Comment
CAS-BOT-BC83280
Myosurus minimus
Alice Eastwood
1922-4-24
11188
Colusa
Road between Princeton and Norman. Colusa/Glenn county line.
Comment
UC1028302
Myosurus sessilis
George B. Rossbach
1955-4-9
271
Colusa
3 mi e Maxwell (Sacramento Valley); Sacramento Valley
18
Comment
UC1738124
Myosurus sessilis
D. E. Stone
1956-10-9
1- 8 -1
Colusa
3 mi E of Maxwell ( on Maxwell Rd.)
Comment
POM312445
Myosurus sessilis
H. L. Mason
1953-4-5
14508
Colusa
3 miles east of Maxwell
Comment
UCD96289
Myosurus sessilis
H. L. Mason
1953-4-5
14508
Colusa
Three miles east of Maxwell.
Comment
CHSC117595
Myriophyllum spicatum
B. Castro; D. Bogener, A Lyons
2007-11-13
1684
Colusa
Sacramento Valley. Vicinity of Golden Gate on E side of Logan Ridge, at SE corner of Funks Reservoir, within surrounding grassland.
60
Comment
UCD81889
Najas gracillima
Ellen Dean; Bear Creek Ranch Grazing Committee
2009-6-19
5773
Colusa
BLM Bear Creek (formerly Payne) Ranch. Lands to the SW of the junction of Hwys 16 and 20. Central part of ranch at large stock pond.
492
Comment
UC1146671
Nassella cernua
Freed W. Hoffman
1944-7-13
1957
Colusa
between Indian Valley and Bear Valley; North Coast Ranges
Comment
UCD57618
Nassella pulchra
Jill Poloske; with Plant Biology 102
2007-4-29
2
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of State Routes 20 and 16. Central part of ranch. Near the intersection of Thompson Canyon and Craig Canyon. West of spring, the headwaters of Craig Creek.
365
Comment
UCD87673
Nassella pulchra
D. Sanchez-Mata
1998-7-9
s.n.
Colusa
Bear Valley. Destanella Flat-Walker Ridge.
450
Comment
CHSC72457
Navarretia divaricata subsp. vividior
L. P. Janeway; David Isle
1998-7-3
5711
Colusa
Along Pacific Ridge Road (16N06) 0.5 mi east of road to Spanish Ridge and Hough Springs; about 50 ft below ridge top on north-facing slope.
1051
Comment
CHSC79543
Navarretia heterandra
B. Castro; L. P. Janeway
2000-5-1
1104
Colusa
Vicinity of Sites, hills S of the Sites-Lodoga Rd, and Grapevine Creek.
204
Comment
JEPS117020
Navarretia heterandra
David Gowen
2008-5-24
924
Colusa
West of Sites, heading up the hill on road to Ladoga, opposite driveway to #4826.
Comment
UCD48445
Navarretia heterandra
Collector unknown
1946-5-30
s.n.
Colusa
Colusa Co.
Comment
JEPS104075
Navarretia jepsonii
Lowell Ahart
2003-7-14
10385
Colusa
Field on the south side of Highway 20, ca 2 mi sw of the intersection of Highway 20 and Bear Valley Rd, ca 21 mi (by road) sw of Williams.
520
Comment
UC971993
Navarretia jepsonii
Herbert L. Mason
1952-6-19
14307
Colusa
Black Diamond Ridge Mendocino National Forest
609
Comment
UCD36308
Navarretia jepsonii
Beecher Crampton
1949-9-25
494 F
Colusa
Colusa County, 18 miles east of Bartlett Springs.
Comment
UCD61473
Navarretia jepsonii
Ellen Dean; G. Harrington, N. Voegtly, J. Alderson, C. Thomsen
2007-6-24
3919
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwy 16 and Hwy 20. West of BLM equestrian parking lot (Cowboy Camp) on west side of Bear Creek. Just west of parking lot on west side of Bear Creek.
312
Comment
UCD66870
Navarretia jepsonii
Ellen Dean; G. Harrington, J. Alderson, E. Bayon, R. Willmarth
2008-6-8
5073
Colusa
BLM Payne Ranch. Lands to the southwest of the intersection of Hwy 16 and Hwy 20. Northwest corner of ranch. Along ridge trail on the border of Lake and Colusa counties. Just south of junction with trail that heads east to the headwaters of Thompson Creek.
634
Comment
UCR261670
Navarretia jepsonii
Ann Howald
2003-5-29
2346
Colusa
Inner North Coast Ranges, Indian Valley, east side of East Park Reservoir, c. 3 miles north of Lodoga, ridge west of Serenity camping area
373
Comment
CHSC94469
Navarretia leptalea subsp. leptalea
Lowell Ahart
2006-8-9
13128
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
347
Comment
CAS-BOT-BC230340
Navarretia leucocephala subsp. bakeri
Roxana Stinchfield
1916-6-17
290
Colusa
Near College City
Comment
CHSC112918
Navarretia nigelliformis subsp. nigelliformis
B. Castro; Robin Carter, Amy Lyons
2010-5-13
1807
Colusa
Vicinity of Golden Gate in Logan Ridge, Road 69 and the Tehama-colusa canal, in disturbed, grazed annual grassland.
121
Comment
CHSC89835
Navarretia nigelliformis subsp. nigelliformis
B. Castro; L. Janeway
2001-5-10
1250
Colusa
Vicinity of Grapevine Creek, Antelope Creek, and Pence Mtn. Near dirt road paralleling N-S-trending perennial creek.
381
Comment
CAS-BOT-BC230054
Navarretia pubescens
Ellen Dean; G. Harrington; C. Thomsen; Chiao-Yi Cheng; R. Wilmarth
2009-5-20
5646
Colusa
Walker Ridge. Along Walker Ridge Road, ca. 0.5 road mi N of intersection with road to Indian Valley Reservoir. Parking area, undeveloped roads, flats and slopes on W side of road
839
Comment
UC584174
Navarretia pubescens
J. Clausen
1935-5-20
1014
Colusa
18 mi w Williams (on Bartlett Springs road)
Comment
UC726846
Navarretia viscidula
A. A. Heller
1940-6-7
15812
Colusa
3 mi s Stonyford
Comment
JEPS80750
Nemacladus capillaris
L. R. Heckard and J. C. Hickman
1981-7-29
5713
Colusa
n of Summit Springs (n of road, s side of Snow Mt, Colusa-Lake county boundary); Snow Mt.
1539
Comment
RSA537450
Nemacladus capillaris
Barbara Ertter
1989-7-1
8599
Colusa
Road to Goat Mt Lookout 2.2 miles S of Rt M-10 (Bear Creek-Fouts Spring Rd) at head of S Fk Stony Creek, ca 12 airmiles WSW of Stonyford.
1500
Comment
SEINET10464797
Nemacladus capillaris
Rattan
1884-1
RATTAN s.n.
Colusa
Above Stony Creek
Comment
UCD63119
Nemacladus montanus
Ellen Dean; G. Harrington, C. Thomsen, S. Harrison
2008-5-18
4949
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwys 20 and 16. Unnamed drainage south of Hwy 20 between Hwy 16 and Lynch Canyon that drains to Bear Creek by passing under Hwy 20.
405
Comment
SEINET7856709
Nemophila heterophylla
R. R. Halse
2013-3-26
8738
Colusa
Along the Leesville Road ca. 5.6 miles northwest of its junction with State Hwy. 20, west of Williams.
157
Comment
UCD66598
Nemophila heterophylla
Craig D. Thomsen
2000-4-28
2256
Colusa
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.
325
Comment
JEPS3136
Nemophila menziesii
Ruth Johnson
1915-4-6
Colusa
College City
Comment
HSC87763
Nemophila menziesii
Stephen Westergaard
1967-4-29
12
Colusa
Bear Valley, 5 mi. N of Hwy. 20
91
Comment
JEPS81302
Nemophila parviflora
L. R. Heckard and J. C. Hickman
1982-7-5
5916
Colusa
grassy slope below Summit Springs (s side Snow Mt.); , below Summit Springs
1524
Comment
UCD66962
Nemophila parviflora
Ellen Dean; Davis Botanical Society
2008-5-31
5006
Colusa
west of I-5 at Maxwell, east slope of Goat Mountain, along Goat Mountain Road, Cedar Grove Campground.
1311
Comment
RSA537462
Nemophila parviflora var. parviflora
Barbara Ertter
1989-7-1
8614
Colusa
Road to Goat Mountain Lookout 1.7 miles S of Rt. M-10 (Bear Creek-Fouts Spring Road) at head of S Fork Stony Creek, ca. 12 airmiles WSW of Stonyford.
1463
Comment
UC1586079
Nemophila parviflora var. parviflora
Barbara Ertter
1989-7-1
8614
Colusa
ca 12 air mi wsw Stonyford (road to Goat Mt. Lookout, at bend in road, 1.7 mi s of Rt M-10 (Bear Creek-Fouts Spring Rd), at head of South Fork of Stony Creek); South Fork of Stony Creek, rd to Goat Mt. Lookout
1463
Comment
CHSC62938
Nemophila pedunculata
Vernon H. Oswald; Lowell Ahart
1994-4-6
6076
Colusa
Goat Mtn. Rd. 0.3 mi S of Little Stony Creek Bridge, SW of Digger Pine Flat, SSW of Stonyford.
548
Comment
HSC66134
Nemophila pedunculata
C. Macdonald, P. Powers, C. Raley, J. Spitler, D. Stamp
1980-4-19
42
Colusa
On Bartlett Springs Rd. at stream crossing
Comment
JEPS80381
Nemophila pedunculata
L. R. Heckard and J. Hickman
1981-6-22
5614
Colusa
along Dark Hollow Creek (Big Meadow, Snow Mt.); Snow Mt., , Big Meadow
1889
Comment
UC638658
Nemophila pedunculata
Ethel Crum
1938-5-8
2025
Colusa
3 mi n Leesville; Inner North Coast Range
Comment
UCD162986
Nemophila pedunculata
Craig D. Thomsen
2002-4-4
2588
Colusa
Bear Creek Botanical Management Area. Roadside shoulder of Hwy 20 (south side), about 0.3 mile west of Hwy 20/16 intersection.
345
Comment
UC38962
Neostapfia colusana
J. Burtt Davy
1898-5-26
Colusa
near Princeton; ; Princeton, Colusa Co.
Comment
RSA0000499
Neostapfia colusana
Jos Burtt Davy
1898-05
s.n.
Colusa
Near Princeton.
Comment
UC71879
Nicotiana acuminata var. multiflora
H. P. Chandler
1905-9-14
Colusa
Princeton
Comment
CAS-BOT-BC231531
Nicotiana glauca
John Thomas Howell
1944-7-18
19841
Colusa
East side of Coast Ranges west of Williams
Comment
CAS-BOT-BC231532
Nicotiana glauca
J. H. Thomas
1960-8-29
8846
Colusa
About 11 miles SW of Williams along highway 20
Comment
JEPS87759
Nicotiana glauca
Vernon H. Oswald and Lowell Ahart
1994-3-23
6024
Colusa
1.8 mi w Stonyford-Lodoga Rd. (Goat Mtn Rd, s of Stonyford, between the road and Little Stony Creek)
487
Comment
SEINET11587905
Nicotiana glauca
Unknown
2009-3-11
14379
Colusa
Williams
Comment
CHSC113037
Nicotiana quadrivalvis
Lowell Ahart
2013-10-1
19085
Colusa
Inner North Coast Range. Strand of East Park Reservoir, about 2 1/2 miles (air) southeast of Stonyford, about 2 1/2 miles northwest of Lodoga, about 10 miles (air) northwest of Sites.
364
Comment
UC34994
Nicotiana quadrivalvis
J. Burtt Davy
May 1898
4304
Colusa
near Princetown
Comment
CAS-BOT-BC400054
Nuphar polysepala
F. P. Cronemiller
1924-6-26
892
Colusa
Upper Letts Swamp
1371
Comment
CHSC71441
Orobanche californica subsp. jepsonii
Vernon H. Oswald; Lowell Ahart
1998-7-15
9274
Colusa
Bartlett Springs Rd. 2.1 mi west of Bear Valley Rd., 0.8 mi east of Sawtelle Valley and Grapevine Flat roads. Along the edge of a meadow.
524
Comment
UC71766
Orobanche californica subsp. jepsonii
H. P. Chandler
Oct 1905
Colusa
Princeton.
Comment
UCD163335
Orobanche fasciculata
Craig D. Thomsen
2009-5-3
2806
Colusa
Walker Ridge. Vicinity of Walker Ridge Rd., about 3 plus miles north of Hwy 20.
841
Comment
SEINET10549723
Orthocarpus purpurascens
Houseman
1984-4-28
HOUSEMAN 11
Colusa
T15n, r5w, s7. Sw 1/4, 2.9 m w of leesville lodoga junction, brim rd in bear Valley. Collected in moist, open, grassy meadow. Growing with layia, Convolvulus, and lupinus. Flowers pale purple.
418
Comment
UCD40885
Orthocarpus purpurascens
Richard Schulhof
1984-4-21
6
Colusa
Approximately 8 miles north of Hwy 20 on Bear Valley Road.
381
Comment
CHSC88577
Packera clevelandii
L. P. Janeway
2001-6-6
7112
Colusa
Inner North Coast Ranges. Eaton Springs, about 2.4 km east of Walker Ridge Road. Meadow opening.
713
Comment
JEPS105741
Packera clevelandii
David Gowen
2004-6-24
134
Colusa
South of Stonyford. Approx. 1.8 miles along Goat Mt. Road from its junction with the paved road to Stonyford.
Comment
JEPS95998
Packera clevelandii
Vernon H. Oswald and L. Ahart
1999-6-22
9783
Colusa
1.5 mi west of Stonyford-Lodoga Road on County Road 42 paralleling Little Stony Creek: T17N R6W Sect. 29, ca. 1400 ft, 1180 ft, chaparral, serpentine substrate
426
Comment
UCD110420
Packera clevelandii
Daniel Slakey; CNPS volunteers
2011-6-12
6
Colusa
Walker Ridge. Wet meadow area on E side of Walker Ridge Rd. About 18 km N of Hwy.20 by road.
876
Comment
UCD133496
Packera clevelandii
D. Sanchez-Mata
1998-7-10
s.n.
Colusa
Lodoga-Stonyford. Mendocino National Forest. Goat Mountain Road between Lodoga and Red Rock Cabin.
420
Comment
UCD163327
Packera eurycephala
Craig D. Thomsen
2009-5-3
2792
Colusa
Walker Ridge. Vicinity of Walker Ridge Rd., 0.25 miles north of Hwy 20.
Comment
UCD163853
Packera eurycephala
Craig D. Thomsen
2000-5-30
2274
Colusa
Bear Valley. About 7 miles north of Hwy 20.
Comment
CAS-BOT-BC231236
Packera eurycephala var. eurycephala
Roxana Stinchfield Ferris
1926-4-23
6454
Colusa
Stonyford.
Comment
UC91676
Packera eurycephala var. eurycephala
Brandegee
May 1887
Colusa
Epperson's
Comment
CHSC106247
Packera greenei
B. Castro; L. P. Janeway
2001-6-3
1258 C
Colusa
Inner North Coast Ranges. Spring at Grapevine flat, on top of Walker Ridge about 0.5 mi E of Baldy Mountain. East-facing slope/bench with large springy/meadowy area.
883
Comment
UC1543129
Packera greenei
Donald G. Nelson
1940-6-9
Colusa
w of Stoneyford Road to Snow Mountain area (road to Bonnie View)
Comment
HSC46738
Packera greenei
William J. Ferlatte
1978-6-13
1908
Colusa
Colusa-Lake Co. line. On Mendocino National Forest Rd. 16N06 about 0.5 mi. SE of Kanaka Glade
1050
Comment
UCD89786
Panicum capillare subsp. hillmanii
Beecher Crampton
1969-6-18
8457
Colusa
1.5 miles south of Williams. Interstate Hwy. 5 northbound.
Comment
CAS-BOT-BC253937
Parapholis incurva
Beecher Crampton
1958-5-19
4825 A
Colusa
Along US Highway 99W, 4 miles S of Maxwell
Comment
CHSC86779
Parapholis incurva
Jenny Marr; Heidi West, Caroline Warren, Natalie Wight
1998-6-11
Colusa
Vicinity of Funks Creek, Logan Ridge, Golden Gate, and Antelope Valley.
121
Comment
UCR119180
Parapholis incurva
Beecher Crampton
1953-4-29
1143
Colusa
Sacramento Valley, 2 miles east of Maxwell
91
Comment
UC1613494
Parvisedum pumilum
Charles M. Belshaw
1937-4-25
2851
Colusa
vicinity of Cook's Spring (Devil's Ridge); Inner N. Coast Range, Devil's Ridge
Comment
CHSC94712
Paspalum distichum
Lowell Ahart
2006-9-26
13352
Colusa
Along the deep ditch, south side of the Delevan National Wildlife Refuge, north side of Maxwell Road, about 3 miles west of Colusa Princeton Road, about 5 1/2 miles east of Maxwell.
24
Comment
UCR225658A
Paspalum distichum
Craig D. Thomsen, Gordon Harrington
2008-7-6
2780
Colusa
BLM Payne Ranch, lands to the southwest of the junction of Hwys 20 and 16. Western edge of ranch on ridge above Cache Creek Canyon, along ridge trail
511
Comment
UC766200
Pectocarya penicillata
R. F. Hoover
1938-4-24
3220
Colusa
w Arbuckle; Sand Creek foothills
Comment
CHSC77918
Pectocarya pusilla
Jean Witzman; Beth Hendrickson
1999-4-7
Colusa
Vicinity of Antelope Valley, Funks Creek, and Logan Ridge.
121
Comment
UCR261665
Pectocarya setosa
Ann Howald
2003-5-5
2329
Colusa
Inner North Coast Ranges, Goat Mountain Road, c. 0.25 mile west of intersection with Lodoga-Stonyford Road
394
Comment
UCD110808
Pedicularis densiflora
Christopher Mallek
2008-1
s.n.
Colusa
Pacific Ridge. Border of Colusa and Lake Counties.
1101
Comment
RSA401941B
Pedicularis densiflora
Terry Roth
1979-4-14
9
Colusa
[No location data on label]
1067
Comment
UC1051747
Pediomelum californicum
Helen K. Sharsmith
1953-6-21
4304
Colusa
ca 1 mi within boundary of Mendocino National Forest (slopes of Little Stoney Creek); Mendocino Nat For, Little Stoney Creek, Inner N Coast Ranges
670
Comment
UCD161828
Pediomelum californicum
James A. Neilson Jr.
1980-6-15
3426
Colusa
Wilbur Hot Springs. (Exact location unknown. Coordinates estimated by label maker.)
Comment
HSC94208
Pellaea andromedifolia
D. Haskamp, E. Sonnenblick, M. Taft
1995-4-1
22
Colusa
On Brim Rd. 1.6 mi. W of Jct. with Bear Valley Rd.
488
Comment
CHSC86960
Pellaea mucronata var. mucronata
B. Castro
2003-4-10
1423
Colusa
Vicinity of Logan Ridge, Sulphur Gap and Lurline Creek. In E-trending small side canyon tributary.
146
Comment
UCD67126
Penstemon heterophyllus var. azureus
Ellen Dean; Davis Botanical Society
2008-5-31
5056
Colusa
west of I-5 at Maxwell, vicinity of Fouts Springs, west of Stoneyford, Grindstone Ranger District Mill Creek campground parking area on S side of Fouts Springs Road.
507
Comment
CHSC26461
Penstemon heterophyllus var. purdyi
L. V. Ritter
1969-4-30
224
Colusa
Ca. 10 mi sw of Williams, s side of Hwy. 20.
Comment
CHSC84198
Penstemon heterophyllus var. purdyi
Lowell Ahart
2003-7-14
10386
Colusa
By a wash, on the east side of Bear Valley Road, about 3 miles northwest of Highway 20.
381
Comment
NY601769
Penstemon heterophyllus var. purdyi
L. Constance
1938-4-22
2148
Colusa
Above Salt Creek, Lower Lake-Williams road, 11 miles northeast of Lake-Colusa line, Inner North Coast Ranges.
152.4
Comment
CDA20255
Penstemon heterophyllus var. purdyi
G. D. Barbe, Nola Parmer
1982-6-4
3636 B
Colusa
North Coast Ranges; Goat Mountain Rd, w of Lodoga-Stonyford Rd, Mendocino National Forest.
0
Comment
NY601740
Penstemon heterophyllus var. purdyi
C. C. Freeman
1983-5-22
1891
Colusa
CA 20, 2.2 miles north-northeast of the junction of CA 20 & 16 in the foothills of the Sierra Cascades.
Comment
UC76098
Penstemon heterophyllus var. purdyi
Miss M. Alice King
1905-1
Colusa
near College City (hills beyond Arbuckle); Sacramento Valley, near College City, Arbuckle
Comment
CDA8447
Pentachaeta exilis
N. van Kleeck, Willa May Lowary
1970-4-18
Colusa
Bear Valley, just south of Ladoga.
0
Comment
UC1532348
Perideridia howellii
Vernon Oswald
1986-6-30
2180
Colusa
Mill Valley Campground near the Lily Pond and Letts Lake.
1188
Comment
UCD63109
Perideridia kelloggii
Ellen Dean; G. Harrington, C. Thomsen, S. Harrison
2008-5-18
4940
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwys 20 and 16. Unnamed drainage south of Hwy 20 between Hwy 16 and Lynch Canyon that drains to Bear Creek by passing under Hwy 20.
351
Comment
UCSB4567
Perideridia kelloggii
Keator, Glenn
1958-6-16
Colusa
Alogn road from Lower Lake to Sacramento valley just east of the Lake-Colusa county line
Comment
CHSC107483
Persicaria amphibia
Jeanne Pendell
2010-7-17
1918
Colusa
Mendocino National Forest - North Coast Ranges Middle Fork Stony Creek Watershed. East arm of East Park Reservoir, in the lake.
365
Comment
CHSC112625
Persicaria lapathifolia
Lowell Ahart
2013-10-1
19090
Colusa
Inner North Coast Range. Strand of East Park Reservoir, about 2 1/2 miles (air) southeast of Stonyford, about 2 1/2 miles northwest of Lodoga, about 10 miles (air) northwest of Sites.
364
Comment
UCD99460
Persicaria lapathifolia
H. R. Drever
1945-8-24
s.n.
Colusa
Near Grimes.
Comment
HSC47736
Petrorhagia dubia
Thomas W. Nelson, Jane P. Nelson
1978-4-29
3942
Colusa
Along Bear Valley Rd., 2.5 mi. from junction with Hwy. 20
366
Comment
CDA16098
Phacelia corymbosa
G. F. Hrusa
1999-5-16
15045
Colusa
North Coast Ranges; Above Fouts Springs.
594
Comment
JEPS73516
Phacelia corymbosa
L. R. Heckard
1972-7-10
3134
Colusa
w Trout Creek; Snow Mt.
1828
Comment
CHSC108152
Phacelia distans
David Isle
2008-4-9
1934
Colusa
Sacramento River Watershed. Reese Place Duck Club (4498 2 Mile Rd); ~ 4 mi. NE of Maxwell.
30
Comment
CHSC62845
Phacelia distans
Vernon H. Oswald; Lowell Ahart
1994-3-23
6021
Colusa
Goat Mtn. Rd. just W of the bridge over Sullivan Creek, S of Stonyford. Locally common in gravelly serpentine soil on the bank between the road and Little Stony Creek.
505
Comment
UCR212377
Phacelia divaricata
Ellen Dean, Craig D. Thomsen, N. Voegtly, J. Alderson, Gordon Harrington
2008-3-30
4668
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwys 20 and 16. Slopes to the NW of Cowboy Camp on the west side of Bear Creek
358
Comment
POM287455
Phacelia divaricata
Lyman Benson
1933-4-16
4326
Colusa
5 miles east of Lake County line. Mt. Range: Inner N. Coast; Watershed: N. Fork Cache Creek.
457
Comment
CHSC12748
Phacelia egena
L. V. Ritter
1969-4-30
227
Colusa
Ca 10 mi. sw of Williams, s side of Highway 20.
Comment
UC73693
Phacelia egena
Miss M. Alice King
1905-1
Colusa
near College City; Sacramento Valley
Comment
UC1613497
Phacelia imbricata
Charles M. Belshaw
1937-4-25
2892
Colusa
vicinity of Cook's Spring Inner North Coast Range, Devil's Ridge
Comment
UCD57821
Phacelia imbricata
Gordon Harrington
2007-4-17
32
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of State Routes 20 and 16. Destanella Flat, just south of Hwy 20, approximately 3.4 road miles west of the Hwy 16 intersection.
552
Comment
SEINET5520514
Phacelia imbricata subsp. imbricata
R. R. Halse
2010-3-25
7850
Colusa
Along State Hwy. 20 ca 10.7 miles southwest of its junction with Interstate Hwy. 5 at Williams; in Salt Canyon.; 0
154
Comment
UC901839
Phacelia imbricata subsp. imbricata
L. Constance, R. Bacigalupi, C. R. Bell, and A. H. Holmgren
1950-4-26
3322
Colusa
ridge between Bear Valley and Indian Valley (near Colusa-Lake Co. line)
609
Comment
UCR233444
Phacelia imbricata subsp. imbricata
George K. Helmkamp, E. A. Helmkamp
2011-4-1
17132
Colusa
Eastern Foothills North Coast Ranges, Antelope Valley, along Maxwell-Sites Road, 0.4 miles southeast of Sites
93
Comment
JEPS1305
Phacelia tanacetifolia
R. F. Hoover
1938-4-24
3230
Colusa
below Sites; Stone Corral Canyon
Comment
UC765521
Phacelia tanacetifolia
R. F. Hoover
1938-4-24
3230
Colusa
below Sites; Stone Corral Canyon
Comment
UCR233441
Phacelia tanacetifolia
George K. Helmkamp, E. A. Helmkamp
2011-4-1
17129
Colusa
Eastern Foothills North Coast Ranges, Antelope Valley, along Maxwell-Sites Road, 0.4 miles southeast of Sites
93
Comment
UCD67073
Phalaris aquatica
Ellen Dean; G. Harrington, J. Alderson, E. Bayon, R. Willmarth
2008-6-8
5100
Colusa
BLM Payne Ranch, lands to the SW of jct of Hwys 16 and 20. Western part of ranch along ridge trail at Cache Creek Canyon. Just south of junction with trail that leads east to Brophy Canyon and Thompson Creek.
488
Comment
UCD88035
Phalaris aquatica
Beecher Crampton
1963-8-5
6869
Colusa
1/4 mile E of Cortena.
Comment
CAS-BOT-BC259027
Phalaris lemmonii
Roxana S. Ferris
1917-4-12
547
Colusa
4 miles east of Williams
Comment
POM163470
Phalaris lemmonii
Roxana S. Ferris
1926-4-21
6282
Colusa
3 mi W of Colusa..
Comment
SEINET10660257
Phalaris lemmonii
Roxana S. Ferris
1917-4-12
Ferris 547
Colusa
4 miles east of Williams; Alkali Plains
Comment
CAS-BOT-BC265956
Phalaris minor
Roxana S. Ferris
1917-4-12
508
Colusa
4 miles east of Williams
Comment
SEINET10657421
Phalaris minor
Roxana S. Ferris
1917-4-12
Ferris 508
Colusa
4 mi. east of Williams; Alkali Plains
Comment
CHSC85974
Phalaris paradoxa
Jenny Marr; Heidi West, Joyce Lacey-Rickert, Caroline Warren
1998-5-8
Colusa
Vicinity of Sites and Antelope Valley.
121
Comment
POM207817
Phalaris paradoxa
Jos Burtt Davy
1898-05
s.n.
Colusa
Near Princeton.
Comment
UC50462
Phalaris paradoxa
J. Burtt Davy
May, 1898
4264
Colusa
near Princeton; near Princeton
Comment
UCD63034
Phalaris paradoxa
Ellen Dean; Marjorie Phan and Gerald Dickinson
2008-4-27
4880
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwys 20 and 16. Across Bear Creek from Cowboy Camp.
323
Comment
UCD66454
Phalaris paradoxa
Craig D. Thomsen
2000-5-12
2322
Colusa
Bear Creek Botanical Management Area. Caltrans right-of-way, on south side of Hwy 20, ca. 0.25 mile west of Hwy 20/16 instersection, near Colusa Co. milepost 3.00.
310
Comment
UCR206810
Phlox gracilis
George K. Helmkamp, E. A. Helmkamp
2009-3-17
14389
Colusa
Inner North Coast Ranges Foothills, along CA-16 and Bear Creek, 4.3 miles south of the junction with CA-20
261
Comment
HSC103841
Phoradendron bolleanum
G. Fred Hrusa, K. van Katwyk
1995-4-22
12109
Colusa
North end of Walker Ridge, ~1 mi. south of intersection with Bartlett Springs Rd. Parasite on Cupressus macnabiana
1000
Comment
UCD83810
Phoradendron bolleanum
Ellen Dean; G. Harrington, K. Mawdsley, J. Shepard
2010-5-1
5957
Colusa
Walker Ridge, along Walker Ridge Road, at intersection with road/trail to Mount Baldy.
880
Comment
UCR257578
Phoradendron macrophyllum
George K. Helmkamp, Elizabeth Helmkamp
2014-1-4
22508
Colusa
Sacramento Valley, along CA-20 at the junction with Alameda Court, 0.2 mile west of the Sacramento River crossing at Meridian
20
Comment
CAS-BOT-BC135299
Phoradendron serotinum subsp. macrophyllum
Roxana S. Ferris
1917-4-15
623
Colusa
Sycamore. Sycamore Slough
Comment
CAS-BOT-BC135298
Phoradendron serotinum subsp. macrophyllum
Roxana Stinchfield
1918-7-12
461
Colusa
Sycamore Slough, Stinchfield Ranch
Comment
UCD80895
Phragmites australis
Jack Alderson; C. Thomsen
2009-3-18
24
Colusa
BLM Bear Creek (Payne) Ranch, lands to the SW of the jct of Hwys 16 and 20. Headwaters of Craig Canyon.
527
Comment
CDA5824
Physalis lancifolia
Cowley
Jul 1931
Colusa
West of Colusa.
0
Comment
CDA37576
Phytolacca americana
J. D.
2000-4-28
PDR 019976
Colusa
Zumwalt Lane, Williams.
0
Comment
UCD80817
Pickeringia montana
Ellen Dean, G. Harrington; K. Mawdsley, C. Thomsen, G. Walden, E. McDermott
2009-3-18
5273
Colusa
BLM Bear Creek (Payne) Ranch, lands to the SW of the jct of Hwys 20 and 16. E-facing slope above Eula Canyon. Between the headwater areas of Craig and Eula Canyons.
528
Comment
UCD81734
Pickeringia montana
Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia
2009-5-27
5736
Colusa
Walker Ridge. Along Walker Ridge Road, just S of turn off to Indian Valley Reservoir.
840
Comment
UC1051745
Pickeringia montana var. montana
Helen K. Sharsmith
1953-6-20
4301
Colusa
Little Stoney Creek Inner North Coast Ranges, Mendocino National Forest
762
Comment
CHSC105196
Pinus attenuata
B. Castro; L. P. Janeway
1999-7-5
1010
Colusa
Ca 11 air mi SSW of Stonyford, 5 mi NW of Indian Valley Reservoir, just N of Colusa/Lake Co line, near Bear Wallow Spring. In serpentine substrate on gentle N-facing slope along Lovelady Ridge rd ca 0.35 mi N of its jcn with USFS Rd 16N06, near top of Pacific Ridge.
1097
Comment
UCD57447
Pinus sabiniana
Gina Darin; with Plant Biology 102
2007-4-29
4
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of State Routes 20 and 16. Central part of ranch. Thompson Canyon. Along trail, north side of Thompson Creek.
374
Comment
UCD165933
Piperia leptopetala
Ellen Dean; with Tom Starbuck
2016-4-24
8844
Colusa
BLM Bear Creek Ranch (formerly Payne Ranch). Lands to the southwest of the intersection of Highway 16 and Highway 20. On north-facing slope of knoll that is just south of corral area (corral at junction of Highways 16 and 20).
393
Comment
JEPS110173
Piptatherum miliaceum
Lowell Ahart
2006-8-9
13106
Colusa
Gravel bar on the south side of Stony Creek, at Mine Camp, about 3 1/2 miles (air) west of Stonyford
455
Comment
UCR225461
Piptatherum miliaceum
Ellen Dean, Gordon Harrington, J. Alderson, E. Bayon, R. Willmarth
2008-6-8
5115
Colusa
BLM Payne Ranch, lands to the southwest of the junction of Hwys 16 and 20. Southwestern edge of ranch above Cache Creek Canyon along ridge trail
548
Comment
CHSC107949
Pisum sativum
B. Castro; T. Boullion
2011-4-20
1847
Colusa
Sacramento Valley. Extreme W edge of Sacramento Valley; ca 5 air mi NW of Maxwell, 0.8 mi SE of Funks Reservoir and 0.3 mi east of bend in Tehama-Colusa Canal. In grassy uplands north of large +- saline/alkaline wetland/marsh and associated vernal swales, just south of east-west fence bordering grain fields.
49
Comment
CAS-BOT-BC169840
Plagiobothrys
Alice M. King
1905-1-1
s.n.
Colusa
near College City. Sacramento Valley
Comment
CAS-BOT-BC227984
Plagiobothrys
Doris K. Kildale
1928-5-8
5016
Colusa
3 miles S of Arbucle [Arbuckle]
Comment
UCR206385
Plagiobothrys
George K. Helmkamp, E. A. Helmkamp
2009-5-20
14751
Colusa
Inner North Coast Ranges, along CA-16, 1.8 miles north of the Yolo County line
271
Comment
CHSC89829
Plagiobothrys austiniae
B. Castro; S. Innecken
2001-3-20
1215
Colusa
Vicinity of Maxwell, Golden Gate in Logan Ridge, Funks Reservoir, and the Glenn-Colusa canal.
39
Comment
UCD57876
Plagiobothrys bracteatus
Gordon Harrington; Diana Hickson, Jack Alderson
2007-4-29
53
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of State Routes 20 and 16. About 250 feet north of Road Kill Cafe in flat meadow-pasture area.
385
Comment
UCD82474
Plagiobothrys bracteatus
Craig Thomsen; G. Harrington
2009-5-12
2852
Colusa
Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd.
707
Comment
UCD120813
Plagiobothrys canescens
Alpaslun Ongun
1961-4-16
37
Colusa
Bear Valley, 8 miles north of State Highway 20.
Comment
CHSC79099
Plagiobothrys fulvus
B. Castro
2000-3-17
1040
Colusa
Vicinity of Sites, Antelope Valley, and Huffmaster Rd.
182
Comment
CHSC81232
Plagiobothrys greenei
Jenny Marr; Heidi West, Caroline Warren
1998-4-16
Colusa
Vicinity of Grapevine Creek and Antelope Valley.
134
Comment
CHSC31260
Plagiobothrys humistratus
R. A. Schlising; K. R. Stern
1980-5-5
3586
Colusa
NW of Colusa; Delevan National Wildlife Refuge; about 1.4 mi south of north margin of refuge.
Comment
UC78155
Plagiobothrys humistratus
Katharine Brandegee
1888-4
Colusa
Colusa Junction
Comment
UCD18843
Plagiobothrys leptocladus
Vernal Pool Team 2001; Carol Witham and Jennifer Buck
2001-4-30
151 A
Colusa
2 mi. south of the town of Colusa along Hwy 20, east of Hwy 20 and the Colusa Airport, Dolan Ranch site, pool # DOL001, UTMs: 10S0587786; 4336302.
Comment
JEPS80194
Plagiobothrys nothofulvus
L. R. Heckard and J. Hickman
1980-7-3
5347
Colusa
ca 10 mi w Stonyford (just w of Summit Springs, sw of Snow Mt., Colusa-Lake County boundary)
1548
Comment
POM163465
Plagiobothrys nothofulvus
Roxana S. Ferris
1926-4-23
6418
Colusa
At Mountain House on the Williams-Stonyford Road.
Comment
CHSC114995
Plagiobothrys stipitatus var. micranthus
Lowell Ahart
2015-4-28
20115
Colusa
North side of Maxwell-Colusa Road, about 5 1/2 miles east of Maxwell.
53
Comment
CHSC52671
Plagiobothrys stipitatus var. micranthus
James Jokerst
1986-5-6
2304
Colusa
Near Lurline Creek. Vernal pool.
41
Comment
UCD18900
Plagiobothrys stipitatus var. micranthus
Vernal Pool Team 2001; Carol Witham and Jennifer Buck
2001-4-17
151 B
Colusa
2 mi. south of the town of Colusa along Hwy 20, east of Hwy 20 and the Colusa Airport, Dolan Ranch site, pool # DOL001, UTMs: 10S0587286; 4336302.
Comment
UCD66938
Plagiobothrys stipitatus var. micranthus
Ellen Dean; G. Harrington, J. Alderson, E. Bayon, R. Willmarth
2008-6-8
5087
Colusa
BLM Payne Ranch, lands to the SW of jct of Hwys 16 and 20. Western side of ranch along trail that follows the border of Lake and Colusa counties. Dunsfield Flat stock pond.
628
Comment
UCR212317
Plagiobothrys stipitatus var. micranthus
Craig D. Thomsen
2000-4-12
2096
Colusa
Bear Creek Botanical Management Area. On Caltrans right-of-way, south side of Hwy 20, 0.25 mi west of Hwy 20/16 intersection, milepost 3.00
310
Comment
CHSC86873
Plagiobothrys stipitatus var. stipitatus
B. Castro; Beth Hendrickson
2003-4-7
1416
Colusa
Vicinity of Sites, Antelope Valley, and Salt Lake.
94
Comment
UCR212375
Plagiobothrys stipitatus var. stipitatus
Ellen Dean, Craig D. Thomsen, N. Voegtly, J. Alderson, Gordon Harrington
2008-3-30
4662
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwys 20 and 16. Near corral on west side of Bear Creek just south of Hwy 20
320
Comment
CAS-BOT-BC60834
Planodes virginica
Doris K. Kildale
1928-5-8
5017
Colusa
3 miles south of Arbuckle.
Comment
CHSC79538
Plantago coronopus
L. P. Janeway; B. Castro
2000-3-23
6637
Colusa
Vicinity of Funks Creek and Glenn-Colusa Canal.
47
Comment
CHSC89837
Plantago coronopus
B. Castro; L. Janeway, S. Innecken
2001-5-9
1252
Colusa
Vicinity of Grapevine Creek, Antelope Creek, and Andys Canyon. Near dirt road paralleling N-S-trending perennial creek.
367
Comment
UCSC009428
Plantago elongata
Lowell Ahart
2015-4-28
20114
Colusa
On the north side of Maxwell-Colusa Road, about 5 1/2 miles east of Maxwell
53
Comment
CHSC115396
Plantago erecta
Lowell Ahart
2015-4-10
20004
Colusa
Along the south edge of Leesville Road, about 1/2 mile east of Leesville, about 12 miles (air) northwest of Williams.
445
Comment
CHSC86027
Plantago erecta
Jenny Marr; H. West, J. Lacey, C. Warren, N. Wight
1998-4-14
Colusa
Vicinity of Grapevine Creek, Antelope Valley, and Sites-Lodoga Road. Pasture.
121
Comment
JEPS124211
Plantago erecta
Lowell Ahart
2015-4-10
20004
Colusa
About 1/2 mile east of Leesville, about 12 miles (air) northwest of Williams.
Comment
UCD64271
Plantago erecta
Craig D. Thomsen
2000-3-31
2067
Colusa
Bear Creek Botanical Management Area. On Caltrans right-of-way, south side of Hwy 20, 0.25 mile west of Hwy 20/16 instersection, Colusa Co. milepost 3.00.
310
Comment
HSC16823
Plantago erecta
M. Dole
1963-4-15
71
Colusa
1 mi. S of the junction of Hwys. 16 and 20, on Hwy. 16
Comment
HSC85854
Plantago erecta
Bruce Delgado, Tim Tilghman, Rob Marheine
1987-4-11
Colusa
Bear Valley, Bartlett Springs Rd.
Comment
UCD14370
Plantago erecta
L. Coats
1983-4-24
6
Colusa
in the hills at the south end of Bear Valley, along Bear Valley Road, 6.3 miles south of Bartlett Springs Road.
487
Comment
CHSC113049
Plantago major
Lowell Ahart
2013-10-1
19094
Colusa
Inner North Coast Range. Strand of East Park Reservoir, about 2 1/2 miles (air) southeast of Stonyford, about 2 1/2 miles northwest of Lodoga, about 10 miles (air) northwest of Sites.
364
Comment
CHSC94449
Plantago major
Lowell Ahart
2006-8-9
13152
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
347
Comment
JEPS110111
Plantago major
Lowell Ahart
2006-8-9
13152
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford
347
Comment
RSA724960
Plantago major
L. Ahart
2006-8-9
13152
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
348
Comment
CAS-BOT-BC93146
Platanus racemosa
Roxana Stinchfield
1916-7-8
395
Colusa
Sycamore Slough. Stinchfield Ranch.
Comment
POM142384
Platanus racemosa
Roxana Stinchfield
1916-7-8
395
Colusa
Stinchfield Ranch, along Sycamore Slough
Comment
CHSC27552
Platystemon californicus
Scott E. Patton
1978-4-9
9
Colusa
Ca. 0.3 m w of jct of Hwys 20 and 16, s side of Bear Creek, ca 18 sw of Williams.
321
Comment
SEINET3124160
Platystemon californicus
Sandra Wainwright
1969-4-13
1
Colusa
Bear Valley, 9.5 miles north of State Highway 20
Comment
UC72707
Platystemon californicus
Miss M. Alice King
1905-1
Colusa
near College City (Sacramento Valley); , near College City
Comment
CAS-BOT-BC91595
Platystemon californicus
Mrs. Brandegee
1889-4-1
s.n.
Colusa
Unspecified.
Comment
SEINET12091628
Platystemon californicus
C. L. Eddy
1984-1
5
Colusa
Ca 0.3 mi W of jct of Hwys 20 and 16, S side of Bear Creek, ca 16 m SW of Williams. Wilbur Springs
322
Comment
SEINET8794142
Platystemon californicus
K. Brandegee
1889-1
s.n.
Colusa
Colusa Junction [now Cortena].
Comment
UCD22719
Platystemon californicus
Nancy Vucinich
1978-4-8
6
Colusa
Bear Valley. 10.3 miles(by road) north of the junction of Hwys 16 and 20.
396
Comment
UCSB63724
Platystemon californicus
Devanna, Martin
1987-4-4
Colusa
Ca. 0.3 mi w of jct Hwys 20 and 16; S side of Bear Creek; ca. 18 mi sw of Williams; Wilbur Springs Quadrangle; S central border of Sect. 36. T14N, R5W
321
Comment
UCD137585
Plectritis ciliosa
Gene R. Williams
1961-3-25
27
Colusa
In Bear Valley, 8.4 miles north of turnoff from State Highway 20.
Comment
JEPS87663
Plectritis ciliosa subsp. ciliosa
Vernon H. Oswald and Lowell Ahart
1994-4-6
6066
Colusa
1.2 mi sw of Digger Pine Flat (s of Stonyford, Goat Mountain Road at Sullivan Creek); Sullivan Creek, Goat Mountain Road
469
Comment
UC1613289
Plectritis ciliosa subsp. ciliosa
Charles M. Belshaw
1937-4-25
2848
Colusa
vicinity of Cook's Spring, Devil's Ridge; Inner N. Coast Range
Comment
UC999837
Plectritis ciliosa subsp. ciliosa
S. C. Dyal, A. Carter, E. Crum
1938-5-7
711
Colusa
Colusa County
Comment
JEPS81274
Plectritis congesta
L. R. Heckard and J. C. Hickman
1982-7-5
5884
Colusa
below (south of) Summit Spring (s side of Snow Mountain); Snow Mountain
1500
Comment
CDA32826
Plectritis congesta subsp. brachystemon
P. Hiatt
1979-4-26
Colusa
North end of Bear Valley at Bartlett Springs Road.
0
Comment
UC999826
Plectritis macrocera
S. C. Dyal, A. Carter, E. Crum
1938-5-7
693
Colusa
near Williams
Comment
UCD67594
Plectritis macrocera
Charles Martin
1986-5-17
33
Colusa
Mendocino National Forest, along Forest Rd. 17NO2, 3.2 miles south of junction with Forest service road 18NO1, Mill Valley campground. In wet meadow, growing in moist soil. Herb, ca. 1ft tall. Small purple flowers in a head, ca. 1 ft tall.
Comment
UC1108833
Poa annua
Herbert L. Mason
1947-3-29
13152
Colusa
ca 3 mi ne Colusa (Butte Sink, along Butte Creek)
Comment
UCD56898
Poa bulbosa
Ellen Dean; Gordon Harrington and Kate Mawdsley
2007-3-30
3501
Colusa
BLM Payne Ranch. On the west side of Hwy. 16. Ca. 2 road miles south of junction of Hwy. 16 and Hwy. 20.
304
Comment
UCD57879
Poa bulbosa
Gordon Harrington; Diana Hickson, Jack Alderson
2007-4-29
54
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of State Routes 20 and 16. About 250 feet north of Road Kill Cafe in flat meadow-pasture area.
385
Comment
UCD64291
Poa secunda
Craig D. Thomsen
2000-4-12
2130
Colusa
Bear Creek Botanical Management Area. On Caltrans right-of-way, south side of Hwy 20, 0.25 mile west of Hwy 20/16 instersection, Colusa Co. milepost 3.00.
310
Comment
CHSC77408
Poa secunda subsp. secunda
Heidi West; Beth Hendrickson, Natalie Wight
1999-3-25
Colusa
Vicinity of Antelope Valley and Sites.
121
Comment
CHSC8244
Poa secunda subsp. secunda
J. G. Moore
1969-4-12
2
Colusa
Hwy 20, 15 mi. w of Williams on n and s sides of road.
106
Comment
JEPS81341
Poa secunda subsp. secunda
L. R. Heckard with J. Hickman
1982-7-6
5954
Colusa
West Peak Snow Mt
2103
Comment
UCD90806
Poa secunda subsp. secunda
Beecher Crampton
1958-4-21
4729
Colusa
Southwestern Colusa County. 7.8 miles NW of Rumsey, along Hwy 16, just above junction of Bear Creek with Cache Creek.
Comment
UCD90886
Poa secunda subsp. secunda
John R. Davey
1967-12-2
90
Colusa
Border, ca. 5-6 miles WSW of Leesville, Bartlett Springs Road N of Baldy Mountain.
609
Comment
UC883695
Pogogyne douglasii
A. A. Heller
1916-6-9
12387
Colusa
Coast Range about 2 miles west of Leesville
Comment
JEPS62433
Pogogyne douglasii
W. L. Jepson
1920-5-23
8966
Colusa
near Leesville, foot of Bartlett grade, west side of Bear Valley, w Colusa Co.
Comment
CAS-BOT-BC413964
Polygonum aviculare subsp. aviculare
Roxana Stinchfield
1916-7-11
457
Colusa
Sycamore
Comment
CAS-BOT-BC413966
Polygonum aviculare subsp. aviculare
Karl H. Rechinger
1953-4-11
s.n.
Colusa
3 miles east of Maxwell
Comment
JEPS80165
Polygonum polygaloides subsp. kelloggii
L. R. Heckard and J. Hickman
1980-7-2
5316
Colusa
ne Snow Mtn. peaks (ca 10 mi w of Stonyford); Upper Milk Ranch Meadow
1920
Comment
RSA724952
Polygonum punctatum
L. Ahart
2006-8-9
13133
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
348
Comment
CDA43071
Polypogon australis
L. P. Janeway, B. Castro
2011-5-19
10282
Colusa
Sacramento Valley.; Extreme west edge of Sacramento Valley; 1.8 km southeast of Funks Reservoir and 0.1 km northeast of Tehama-Colusa Canal.
Comment
RSA725023
Polypogon maritimus
L. Ahart
2006-8-9
13171
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
348
Comment
RSA725017
Polypogon monspeliensis
L. Ahart
2006-8-9
13122
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
348
Comment
UCD18842
Polypogon monspeliensis
Vernal Pool Team 2001; Carol Witham and Jennifer Buck
2001-4-30
149
Colusa
2 mi. south of the town of Colusa along Hwy 20, east of Hwy 20 and the Colusa Airport, Dolan Ranch site, pool # DOL001, UTMs: 10S0587786; 4336302.
Comment
UCD61444
Polypogon monspeliensis
Ellen Dean; G. Harrington, N. Voegtly, J. Alderson, C. Thomsen
2007-6-24
3889
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwy 16 and Hwy 20. West of BLM equestrian parking lot (Cowboy Camp) on west side of Bear Creek. Approximately 1000 ft NW of parking lot.
339
Comment
SBBG119883
Polypogon viridis
L. Ahart
2006-8-9
13159
Colusa
N side and under bridge across Stony Crk, just N of Stonyford
347
Comment
CAS-BOT-BC102381
Populus fremontii
Roxana S. Ferris
1917-4-17
624
Colusa
Sycamore, Sycamore Slough
Comment
HSC59137
Populus fremontii subsp. fremontii
Terry Roth
1979-5-7
41
Colusa
Where Hwy. 20 enters Salt Canyon along Salt Creek
122
Comment
UCD83719
Populus fremontii subsp. fremontii
Joseph Schlottman; with PLB 102 class
2010-5-2
5
Colusa
East slope of Walker Ridge. Eaton Springs. Adjacent to main creek.
710
Comment
SEINET3892428
Potamogeton diversifolius
G. Harrington, J. Alderson; E. Bayon; R. Willmarth
2008-6-8
5107
Colusa
Blm Payne Ranch, lands to the SW of jct of Hwys 16 and 20. Western edge of ranch on ridge above Cache Creek Canyon.; 0
511
Comment
UCD35976
Potamogeton nodosus
Beecher Crampton
1963-8-5
6870
Colusa
1/4 mile E Cortena.
Comment
CHSC46886
Potamogeton pusillus var. tenuissimus
Vernon Oswald
1989-9-12
4006
Colusa
Letts Lake in the Mendocino National Forest, ca. 10 mi (air) sw of Stonyford. On the edge of the lake.
1365
Comment
UC1607563
Potentilla drummondii
Barbara Ertter with Elizabeth Neese
1989-7-2
8627
Colusa
ca. 11 air mi due w Stonyford (Long Glade s of Milk Ranch just w of Snow Mt. West); just w Snow Mt. West
1956
Comment
JEPS8022
Proboscidea louisianica subsp. louisianica
Rimo Bacigalupi with L. R. Heckard
1951-8-6
3471
Colusa
4.6 mi nw Sites (along road between Sites and Lodoga)
Comment
UC914241
Proboscidea louisianica subsp. louisianica
Verne Grant and Alva Grant
1946-8-6
7842
Colusa
4 mi nw Colusa (e Colusa Co.); West Butte Ranch
Comment
UCD122109
Proboscidea louisianica subsp. louisianica
Rimo Bacigalupi; L R. Heckard
1951-8-6
3471
Colusa
along road between Sites and Lodoga, 4.6 mi. N.W. of Sites.
Comment
CAS-BOT-BC159894
Prunus emarginata
Leah D. McKee
1881-5-3
036
Colusa
Mill Valley Campgrounds, near bridge on [Lodga] Lodoga
1219
Comment
CHSC94739
Pseudognaphalium californicum
Lowell Ahart
2006-6-15
12791
Colusa
On the west side of Forest Road 18N03, about 100 yards north of Mill Creek, near Fouts, Mill Creek Campgrounds, about 5 3/4 miles (air) west-southwest of Stonyford.
500
Comment
JEPS108724
Pseudognaphalium californicum
Lowell Ahart
2006-6-15
12791
Colusa
On the west side of Forest Road 18N03, about 100 yards north of Mill Creek, near Fouts, Mill Creek Campgrounds, about 5 3/4 miles (air) west-southwest of Stonyford
500
Comment
UCD67072
Pseudognaphalium californicum
Ellen Dean; G. Harrington, J. Alderson, E. Bayon, R. Willmarth
2008-6-8
5099
Colusa
BLM Payne Ranch, lands to the SW of jct of Hwys 16 and 20. Western part of ranch along ridge trail at Cache Creek Canyon. Just south of junction with trail that leads east to Brophy Canyon and Thompson Creek.
494
Comment
JEPS18022
Psilocarphus brevissimus var. brevissimus
George B. Rossbach
1955-4-9
558
Colusa
3 mi e Maxwell; Sacramento Valley
18
Comment
JEPS40460
Psilocarphus brevissimus var. brevissimus
W. L. Jepson
1934-5-3
16598
Colusa
College City
Comment
UC1178819
Psilocarphus brevissimus var. brevissimus
Herbert L. Mason
1953-4-5
14507
Colusa
about 3 mi e Maxwell (near bend in road by bench mark)
Comment
CHSC115395
Psilocarphus oregonus
Lowell Ahart
2015-4-10
20008
Colusa
Along the south edge of Leesville Road, about 1/2 mile east of Leesville, about 12 miles (air) northwest of Williams.
445
Comment
CHSC60658
Psilocarphus oregonus
Vernon H. Oswald
1993-4-14
5268
Colusa
Tour Route, Colusa National Wildlife Refuge, SW of Colusa. On top of a levee road branching off of the S leg of the tour route.
18
Comment
UC1601291
Psilocarphus oregonus
T. S. Brandegee
Apr 1889
Colusa
Colusa Junction
Comment
UC1601294
Psilocarphus oregonus
T. S. Brandegee
Colusa
Williams
Comment
CAS-BOT-BC361876
Psilocarphus tenellus
Roxana S. Ferris
1917-4-12
526
Colusa
4 miles east of Williams
Comment
UC71968
Psilocarphus tenellus
Miss M. Alice King
1905-1
Colusa
near College City; Sacramento Valley
Comment
UCD163706
Psilocarphus tenellus
Craig Thomsen
1999-5-10
2018
Colusa
Colusa County. At confluence of Sulphur Creek and Bear Creek. About 3 miles north of Hwy 20.
Comment
UCD57867
Psilocarphus tenellus
Gordon Harrington; Diana Hickson, Jack Alderson
2007-4-29
50
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of State Routes 20 and 16. About 250 feet north of Road Kill Cafe in flat meadow-pasture area.
385
Comment
UCD58125
Psilocarphus tenellus
Ellen Dean; PLB 102 Class
2007-4-29
3721
Colusa
Payne Ranch. West of Hwy. 16. Ca. 2 road miles S of junction of Hwy. 20 and Hwy. 16. Through Craig Canyon. Near 'Roadkill Cafe.
414
Comment
CHSC86029
Psilocarphus tenellus var. tenellus
Jenny Marr; H. West, J. Lacey, C. Warren, N. Wight
1998-4-14
Colusa
Vicinity of Grapevine Creek, Antelope Valley, and Sites-Lodoga Road.
121
Comment
CHSC62847
Pterostegia drymarioides
Vernon H. Oswald; Lowell Ahart
1994-3-23
6018
Colusa
Goat Mtn. Rd. just W of the bridge over Sullivan Creek, S of Stonyford. Growing at the base of an outcropping of serpentine.
505
Comment
CHSC79550
Pterostegia drymarioides
B. Castro; L. P. Janeway
2000-5-2
1120
Colusa
Vicinity of Sites, Sites-Lodoga Rd, and Grapevine Creek.
231
Comment
JEPS89241
Purshia tridentata var. tridentata
L. R. Heckard and J. C. Hickman
1981-7-30
5775
Colusa
about 1.7 km e (air mi) Snow Mt., West Peak (at e summit of ridge running e of West Peak); Snow Mt.
2042
Comment
UCD117828
Pyrola aphylla
M. Vincent
1968-6-6
789
Colusa
On road to Stony Ford from Goat Mt. 2 4/10 miles west of Old Mills Campground.
Comment
RSA0080624
Pyrola dentata
Barbara Ertter
1989-7-1
8593
Colusa
Road to Goat Mt Lookout 2.2 mi S of Rt M-10 (Bear Creek-Fouts Spring Rd) at head of S Fk Stony Creek, ca 12 airmiles WSW of Stonyford.
1500
Comment
JEPS75762
Quercus
L. R. Heckard, and R. Bacigalupi
1976-9-6
4451
Colusa
Fouts Camp-Summit Spring trail Snow Mt.
1584
Comment
UCD144417
Quercus chrysolepis
G. F. Hrusa
1998-10-28
14897
Colusa
Inner North Coast Ranges. Above Fouts Springs. Through Springs Road mile 2.7.
750
Comment
CAS-BOT-BC86602
Quercus douglasii
Roxana Stinchfield
1916-6-18
302
Colusa
near College City
Comment
CAS-BOT-BC86603
Quercus douglasii
Roxana S. Ferris
1917-4-14
580
Colusa
7 mi W of Arbuckle - Rumsey Road
Comment
UC993118
Quercus douglasii
J. M. Tucker
1948-9-22
1869
Colusa
11.3 mi w Williams (beside road to Venado)
Comment
UC993121
Quercus douglasii
J. M. Tucker
1948-9-22
1869
Colusa
11.3 mi w Williams (beside road to Venado)
Comment
UCD41209
Quercus durata
John Snelling
1986-5-17
3 -
Colusa
5.7 mi. west of Stoneyford along Fouts Spring Road.
Comment
UCD57325
Quercus durata
Amy Whitcomb
2007-3-25
1
Colusa
BLM Payne Ranch. Destinella Flat area, just E of the Lake County border, ca. 3.4 road miles along Hwy 20 from the junction of Hwy 16 and Hwy 20. South side of Hwy 20.
563
Comment
UCD84510
Quercus durata
Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk
2010-6-2
6061
Colusa
Colusa County. On Lake County border. Walker Ridge. Along Walker Ridge Road, between Cold Spring and Buck Flat.
971
Comment
CHSC105193
Quercus durata var. durata
B. Castro; L. P. Janeway
1999-7-5
1016
Colusa
Ca 11 air mi SSW of Stonyford, 5 mi NW of Indian Valley Reservoir, just N of Colusa/Lake Co line, near Bear Wallow Spring. In serpentine substrate on NNW-facing slope W of Lovelady Ridge rd ca 0.5 mi N of its jcn with USFS Rd 16N06, 0.6 mi NE of Pacific Point.
1051
Comment
HSC71306
Quercus durata var. durata
Thomas W. Nelson, Jane P. Nelson
1979-4-12
4620
Colusa
Along Stony Creek below Digger Pine Campground
Comment
HSC71309
Quercus durata var. durata
Thomas W. Nelson, Jane P. Nelson
1979-4-12
4617
Colusa
Along Stony Creek below Digger Pine Campground
Comment
UC1299701
Quercus garryana
Freed W. Hoffman
1948-6-26
2517
Colusa
n side Goat Mt. (near forks of Stonyford and Goat Mt. roads, w Colusa County)
1653
Comment
CHSC92580
Quercus garryana var. breweri
D. Isle
2005-7-14
1154
Colusa
Mendocino National Forest--North Coast Ranges. Middle Fork Stony Creek Watershed. In saddle of Board Camp Ridge on 17N10, SE of the Homesites about 1 mile. SE of Boardcamp gate at the junction with OHV Trail 06 and road 17N10.
1633
Comment
RSA758621
Quercus lobata
George K. Helmkamp
2008-10-14
14258
Colusa
Sacramento Valley: along CA-20, 0.2 mile east of the Sutter County Line
9
Comment
UC1179011
Quercus lobata
Herbert L. Mason
1947-3-29
13153
Colusa
ca 3 mi ne Colusa (along Butte Creek); Butte Sink, Butte Creek
Comment
UCR205170
Quercus lobata
George K. Helmkamp, E. A. Helmkamp
2008-10-14
14251
Colusa
Sacramento Valley, along CA-20, 0.2 mile east of the Sutter County line
9
Comment
RSA623529
Quercus palmeri
Roger Raiche
1990-12-2
s.n.
Colusa
Across Sulphur Creek from Wilbur Springs
Comment
UCR255069
Quercus palmeri
Roger Raiche
1990-12-2
s.n.
Colusa
North Coast Range, across Sulphur Creek from Wilbur Springs
412
Comment
JEPS73455
Quercus vacciniifolia
L. R. Heckard
1972-7-8
3056
Colusa
se of Snow Mt.; West Peak
1981
Comment
UCD144336
Quercus wislizeni var. frutescens
G. F. Hrusa
1998-11-7
14905
Colusa
Inner North Coast Ranges. Above Fouts Springs. Through Springs Road mile 2.7.
750
Comment
CHSC45699
Rafinesquia californica
Vernon Oswald
1986-5-12
2004
Colusa
Sites-Lodoga Rd. 0.2 mi w of Grapevine Pass. Roadside.
487
Comment
UCD159337
Rafinesquia californica
D. S. Park; E. Dean
2010-6-5
121
Colusa
Walker ridge, Cold Spring Mt. roadside on exposed slope.
935
Comment
UCD66456
Ranunculus arvensis
Craig D. Thomsen
2000-5-12
2324
Colusa
Bear Creek Botanical Management Area. Caltrans right-of-way, on south side of Hwy 20, ca. 0.25 mile west of Hwy 20/16 instersection, near Colusa Co. milepost 3.00.
310
Comment
CHSC118888
Ranunculus arvensis
David Isle; Ffrank Pendell
2017-5-17
2172
Colusa
Foothills E edge of N Coast Range: W of Stonyford ~1.5 miles on 18N01.1 toFrank and Sheri Pendell Ranch; in black adobe pasture S of house ~1/8 mile.
381
Comment
CAS-BOT-BC378937
Ranunculus californicus var. californicus
Roxana Ferris
1926-4-21
6296
Colusa
abandoned rice field 2 mi west of Colusa
Comment
CHSC86880
Ranunculus canus
B. Castro
2003-4-1
1408
Colusa
Vicinity of Sites, hills N of the Sites-Lodoga Rd, and Stone Corral Creek.
146
Comment
SEINET11587858
Ranunculus canus
Unknown
2009-3-11
14373
Colusa
Williams
Comment
UCR206701
Ranunculus canus
George K. Helmkamp, E. A. Helmkamp
2009-3-17
14391
Colusa
Inner North Coast Ranges Foothills, along CA-16 and Bear Creek, 4.3 miles south of the junction with CA-20
261
Comment
SEINET4208544
Ranunculus canus var. canus
Richard R. Halse
2013-3-26
8740
Colusa
Along the Leesville Road ca. 5.6 miles northwest of its junction with State Hwy. 20, west of Williams.; 0
157
Comment
CAS-BOT-BC378805
Ranunculus canus var. canus
A. A. Heller
1919-5-10
13113
Colusa
grade east of Leesville in the oak belt
Comment
CHSC62943
Ranunculus hebecarpus
Vernon H. Oswald; Lowell Ahart
1994-4-6
6057
Colusa
Goat Mtn. Rd. 0.1 mi NE of Digger Pine Flat, S of Stonyford. On a roadside bank.
463
Comment
UCD169733
Ranunculus hebecarpus
Richard R. Halse
2013-3-26
8739
Colusa
Along the Leesville Road ca. 5.6 miles northwest of its junction with State Hwy. 20, west of Williams.
157
Comment
UCD97128
Ranunculus hebecarpus
Ellen Dean; G. Harrington, J. Alderson
2011-4-10
6912
Colusa
Along Bear Valley Road at the Cal Fire station.
335
Comment
HSC72770
Ranunculus hebecarpus
J. Krajanowski
1981-4-4
2
Colusa
Salt Canyon, N side of Salt Creek, Hwy. 20, 11 mi. WSW of Williams
143
Comment
UCD163875
Ranunculus occidentalis
Craig D. Thomsen
2000-4-12
2453
Colusa
Bear Creek Botanical Management Area. Caltrans right-of-way on south side of Hwy 20, about 1 mile west of Hwy 20/16 instersection.
Comment
CHSC99463
Raphanus raphanistrum
Richard R. Halse
2007-3-22
7104
Colusa
Williams; by the junction of 5th Street and B Street,
25
Comment
JEPS2828
Rhamnus californica var. crassifolia
W. L. Jepson
1920-5-23
8974
Colusa
ridge w Bear Valley; ; W of Bear Valley, Colusa Co.
Comment
UC71642
Rhamnus ilicifolia
Miss Alice King
1905-1
Colusa
College City
Comment
CHSC105169
Rhamnus tomentella subsp. crassifolia
B. Castro; L. P. Janeway
1999-7-5
1014
Colusa
Ca 11 air mi SSW of Stonyford, 5 mi NW of Indian Valley Reservoir, just N of Colusa/Lake Co line, at Bear Wallow Spring. In serpentine substrate on NNW-facing slope W of Lovelady Ridge rd ca 0.5 mi N of its jcn with USFS Rd 16N06, 0.5 mi NE of Pacific Point.
1045
Comment
CHSC88560
Rhamnus tomentella subsp. crassifolia
L. P. Janeway; B. Castro
2001-6-3
7096
Colusa
Inner North Coast Ranges. Spring near head of Doyle Canyon on east side of Walker Ridge, about 2.7 km (air) south of Bartlett Springs Road.
799
Comment
JEPS41964
Rhamnus tomentella subsp. crassifolia
W. L. Jepson
1920-5-23
8975
Colusa
hills w of Bear Valley (on grade over ridge to Indian Valley)
Comment
RSA289466
Rhamnus tomentella subsp. crassifolia
Edward Lee, C. M. Belshaw
1936-12-13
2612
Colusa
Stonyford - Lodoga Road
Comment
UCR228656
Rhamnus tomentella subsp. crassifolia
Ellen Dean, Davis Botanical Society
2008-5-31
4996
Colusa
West of Hwy I-5 at Maxwell, along Goat Mountain Road,following Little Stoney Creek, Little Stoney Creek Canyon
414
Comment
CHSC75707
Rhododendron occidentale
Vernon H. Oswald; Lowell Ahart
1999-6-22
9788
Colusa
2.2 mi west of Stonyford-Lodoga Road on County Road 42 paralleling Little Stony Creek.
426
Comment
UCD117941
Rhododendron occidentale
George F. Hrusa
1989-5-5
6066
Colusa
Open margin of Little Stony Creek, along Rd. to Cedar Camp. 1.5 m. SW of intersection of Stonyford-Lodoga Rd.
470
Comment
CAS-BOT-BC170522
Rhus aromatica
Roxana S. Ferris
1926-4-23
6590
Colusa
Near Stonyford.
Comment
HSC3157
Rhus aromatica
C. M. Belshaw
1937-4-25
2813
Colusa
Cooks Springs.
Comment
UCD57304
Rhus aromatica
Ellen Dean; C. Thomsen, S. Bledsoe, J. Alderson, M. Starbuck
2007-4-7
3675
Colusa
BLM Payne Ranch. Lands to the southwest of junction of Hwy. 20 and Hwy. 16. Thompson Canyon, near juncture with Craig Canyon.
366
Comment
UCD82135
Rhus aromatica
Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth
2009-5-20
5667
Colusa
Walker Ridge. Along Walker Ridge Road, ca. 0.5 road mi N of intersection with road to Indian Valley Reservoir. Parking area, undeveloped roads, flats and slopes on W side of road.
869
Comment
RSA403713
Rhus trilobata var. quinata
Michelle Stevens
1979-4-14
30
Colusa
Bear Valley Road, 3.9 miles north of State Route 20
412
Comment
HSC44275
Ribes malvaceum
Barbara Kelly
362
Colusa
1 mi.. from intersection of Bartlett Springs Rd. and Grapevine Spring Rd. on Walker Ridge Rd.
Comment
HSC94175
Ribes malvaceum var. malvaceum
A. Skelly, G. McCabe, B. Bletcher
1996-3-30
4
Colusa
1.6 mi. W of Bear Valley Rd. and Brim Rd. on Brim Rd., 14.7 mi. on Walker Ridge Rd. to Brim Rd., 57 mi. E of Hwy. 101 on Hwy. 20, Leesville
Comment
UCD120073
Ribes quercetorum
Gordon Harrington
2012-2-14
s.n.
Colusa
N side of Hwy 20 and Salt Creek Canyon between Hwy 16 and the Central Valley. Bear Valley Ranch property. Top of small canyon.
306
Comment
UCD97117
Ribes quercetorum
Ellen Dean; G. Harrington, J. Alderson
2011-4-10
6900
Colusa
Along Bear Valley Rd on west and east sides of road.
355
Comment
CHSC90878
Ribes roezlii
D. Isle
2003-6-24
214
Colusa
Mendocino National Forest--North Coast Ranges. Little Stony Creek Watershed. UTM's: 10S 0523825E 4346753N.
1767
Comment
LA97624
Ribes roezlii
J. M. Tucker;
1959-5-30
3524
Colusa
Goat Mountain, ca. 1.25 mi. NW of Goat Mountain Lookout
1767
Comment
UC1051741
Ribes roezlii
Helen K. Sharsmith
1953-6-20
4297
Colusa
n slope Goat Mountain; Inner North Coast Ranges, Mendocino National Forest
1828
Comment
UCR246379
Ribes roezlii
Mona Bourell
1997-3-29
5770
Colusa
Mendocino National Forest, Dixie Glade Campground
918
Comment
HSC48145
Rigiopappus leptocladus
Thomas W. Nelson, Jane P. Nelson
1978-4-30
3966
Colusa
Along Hwy. 20, E of Colusa-Lake county line
549
Comment
UCD82862
Rigiopappus leptocladus
Gordon Harrington
2008-4-13
73
Colusa
BLM Payne Ranch. Slopes to the SW of junction of Hwy 16 and Hwy 20. E of unnamed creek (flowing now).
385
Comment
CAS-BOT-BC147382
Rosa californica
Roxana Stinchfield
1916-7-8
384
Colusa
Sycamore Slough, Stinchfield Ranch
Comment
CAS-BOT-BC158727
Rubus ursinus
Roxana S. Ferris
1926-4-21
6310
Colusa
Oak Graove Sycamore Slough, near Sycamore
Comment
POM163497
Rubus vitifolius
Roxana S. Ferris
1926-4-21
6310
Colusa
Sycamore Slough/ Near Sycamore.
Comment
JEPS80273
Rumex acetosella
L. R. Heckard, and J. Hickman
1980-9-16
5456 A
Colusa
ne slope West Peak (cirque area between peaks Snow Mt.); Snow Mt.
2011
Comment
UCD82155
Rumex conglomeratus
Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth
2009-5-20
5681
Colusa
Walker Ridge. Along Walker Ridge Road, ca. 0.5 road mi N of intersection with road to Indian Valley Reservoir. Parking area, undeveloped roads, flats and slopes on W side of road.
843
Comment
CHSC29731
Rumex obtusifolius
K. R. Stern
1980-5-5
6625
Colusa
Vernal pool, south central border area of Colusa National Wildlife Refuge.
45
Comment
CDA2395
Saccharum ravennae
Gordon Leppig
2001-3-29
1541
Colusa
Route 16, 100 meters east of mile marker 4.58.
0
Comment Read comments Jul 31 2014
HSC102730
Saccharum ravennae
J. P. Smith
2013-8-23
13779
Colusa
Along State Route 16 above Cache Creek.
192
Comment
CHSC79280
Sagina apetala
B. Castro; L. P. Janeway
2000-4-10
1063
Colusa
Vicinity of Sites in rolling hills near Sulphur Gap, among un-named tributaries to Lurline Creek.
91
Comment
UCD138020
Sagittaria longiloba
June McCaskill
1954-8-23
374
Colusa
7 miles east of Arbuckle, jus north of the road east from Arbuckle.
Comment
CAS-BOT-BC445794
Sagittaria montevidensis
Herbert L. Mason; Verne Grant
1946-8-7
12981
Colusa
Eight miles north of Colusa
Comment
UC935750
Sagittaria montevidensis subsp. calycina
Herbert L. Mason and Verne Grant
1946-8-6
12961
Colusa
on Colusa - Marysville Highway four mi s Colusa (w side of Sacramento River); w side of Sacramento River
Comment
UCD138036
Sagittaria montevidensis subsp. calycina
Herbert L. Mason; Verne Grant
1946-8-7
12981
Colusa
8 miles north of Colusa.
Comment
UCD138042
Sagittaria montevidensis subsp. calycina
June McCaskill; W. A. Harvey
1954-8-9
366
Colusa
Grimes - Knights Landing Highway, ca. 3 miles south of Grimes.
Comment
CAS-BOT-BC103026
Salix bonplandiana
Roxana S. Ferris
1926-4-23
6401
Colusa
near Mountain House on Williams - Stonyford Road
Comment
UCD163852
Salix breweri
Craig D. Thomsen
2000-6-7
2368 a
Colusa
Bear Valley. About 7 miles north of Hwy 20.
Comment
UCD55470
Salix breweri
Ellen Dean; Gordon Harrington
2006-10-6
3294
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of State Routes 20 and 16. Ranch can be accessed via north gate which is located on a road on the S side of State Route 20, 2.3 road miles W of jct of State Routes 16 and 20. In Thompson Canyon, along dirt road that parallels ephemeral drainage.
362
Comment
JEPS80787
Salix exigua
L. R. Heckard and J. C. Hickman
1981-7-30
5760
Colusa
se side Snow Mt. (Trout Creek)
1600
Comment
UCD163351
Salix exigua
Craig D. Thomsen
2000-5-12
2359
Colusa
Walker Ridge. Along road to Elgin Mine.
Comment
CDA39532
Salix gooddingii
G. D. Barbe
1975-6-4
2008
Colusa
North of boat ramp, Colusa State Recreation Area.
0
Comment
CDA12796
Salix laevigata
G. F. Hrusa
1996-2-26
12631
Colusa
Inner North Coast Ranges; Small valley approx. 5 m. NW of Hwy. 20 along Leesville Rd. W of Oat Valley at S end of Boxer Valley.
Comment
CDA12799
Salix laevigata
G. F. Hrusa
1996-2-26
12634
Colusa
Inner North Coast Ranges; On Sites-Lodoga Rd. ~2.5 m. NW of Sites at base of Little Antelope Grade.
Comment
UCD164152
Salix laevigata
Craig Thomsen
1999-4-27
2002
Colusa
Bear Creek Canyon. About 5 miles north of Hwy 20, 0.25 mile south of Wilbur Bridge.
Comment
UCD164153
Salix laevigata
Craig Thomsen
1999-4-27
1999
Colusa
Bear Creek Canyon. Along Bear Creek, just north of Sulphur Creek confluence, next to Wilbur Bridge.
Comment
UCD57306
Salix laevigata
Ellen Dean; C. Thomsen, S. Bledsoe, J. Alderson, M. Starbuck
2007-4-7
3677
Colusa
BLM Payne Ranch. Lands to the southwest of junction of Hwy. 20 and Hwy. 16. Thompson Canyon, near juncture with Craig Canyon.
362
Comment
UCD82128
Salix laevigata
Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth
2009-5-20
5658
Colusa
Walker Ridge. Along Walker Ridge Road, ca. 0.5 road mi N of intersection with road to Indian Valley Reservoir. Parking area, undeveloped roads, flats and slopes on W side of road.
839
Comment
UCR206356
Salix laevigata
George K. Helmkamp, E. A. Helmkamp
2009-3-11
14380
Colusa
Inner North Coast Range Foothills, along CA-20, 9.7 miles southwest of Williams beside Salt Creek
107
Comment
JEPS81275
Salix lasiandra var. lasiandra
L. R. Heckard and J. C. Hickman
1982-7-5
5885
Colusa
s side Snow Mt. (Summit Springs, slope below (s of ) area)
1500
Comment
CHSC114706
Salix lasiolepis
G. F. Hrusa
1999-5-16
15047
Colusa
Below ridge of summit of Goat Mountain on S side. At intersection of rd to Young's Corral and Goat Mtn Lookout. UTM: 10S, 4347149N, 0523426E.
1737
Comment
UC1179040
Salix lasiolepis
Herbert L. Mason
1947-3-29
13154
Colusa
ca. 3 mi ne Colusa; Butte Sink, Butte Creek
Comment
UC1179060
Salix lasiolepis
Herbert L. Mason
1947-3-29
13161
Colusa
ca. 3 mi ne Colusa; Butte Sink, Butte Creek
Comment
CDA20233
Salsola australis
P. Akers
2003-10-7
s.n.
Colusa
Sacramento Valley; 5th St and Hillgate Rd, Arbuckle, just E of Hwy 5 behind Shell Stn on RR tracks.
42
Comment
CDA20232
Salsola australis
P. Akers
2003-10-7
s.n.
Colusa
Sacramento Valley; N of Maxwell on frontage rd E of Hwy 5, W of RR tracks, 1.8 mi N of Delevan Rd. Area mostly S. tragus.
0
Comment
JEPS118679
Salsola soda
B. Castro with Dave Bogener
2011-9-1
1913
Colusa
Sacramento Valley. 10 air mi W of the Sacramento River and 800 ft N of the northern boundary of Delevan NWR. Near where Hunters and Logan Creeks empty into the Colusa Basin Drain. Moulton Weir 7.5' quad.
Comment
CAS-BOT-BC176899
Salsola tragus
Roxana Stinchfield
1916-7-8
369
Colusa
Sycamore Slough Road
Comment
CDA12015
Salvia columbariae
G. F. Hrusa
1990-4-8
7667
Colusa
North Coast Biodiversity Arena; Road into Bear Valley from the S, passing Wilbur Springs, and originating at Hwy. 20.
Comment
HSC62788
Salvia columbariae
J. M. DiTomaso
1979-4-14
874
Colusa
Bear Valley Rd., 3.9 mi. N of S.R. 20, next to Bear Creek.
412
Comment
HSC72151
Salvia columbariae
J. P. Smith, Thomas W. Nelson, Jane P. Nelson
1978-4-2
9564
Colusa
Bear Valley Rd., 2.1 mi. from its junction with Hwy. 20
366
Comment
JEPS62672
Salvia columbariae
R. F. Hoover
1938-4-24
3228
Colusa
ridge between Venado and Leesville (e of Leesville)
Comment
UCD163337
Salvia columbariae
Craig D. Thomsen
2009-5-3
2808
Colusa
Walker Ridge. Vicinity of Walker Ridge Rd., about 3 plus miles north of Hwy 20.
841
Comment
SEINET12326928
Salvia columbariae
E. M. Kelly
1977-1
9
Colusa
Salt Canyon, N side of Salt Creek, Hwy 20, 10 mi WSW of Williams. Wilbur Springs Quadrangle, 15'.*
143
Comment
UCD70242
Salvia mellifera
D. Sanchez-Mata
1998-7-9
s.n.
Colusa
Bear Valley. Destanella Flat-Walker Ridge. Open serpentine chaparral (Ceanotho albiflori-Quercetum duratae Sanchez-Mata, Barbour and Rodriguez in Rivas-Martinez 1997).
450
Comment
JEPS75867
Sambucus mexicana
L. R. Heckard
1974-9-10
3881
Colusa
East Circle Trail Snow Mt. (at base of ne-facing rocky cliff along spur running se from west peak)
2011
Comment
JEPS80781
Sambucus mexicana
L. R. Heckard and J. C. Hickman
1981-7-30
5755
Colusa
Trout Creek Snow Mt. (se side of mt.)
1600
Comment
CAS-BOT-BC238628
Sambucus nigra subsp. caerulea
Roxana Stinchfield
1916-7-8
389
Colusa
Sycamore Slough, Stinchfield Ranch
Comment
CAS-BOT-BC238629
Sambucus nigra subsp. caerulea
Roxana S. Ferris
1917-4-15
622
Colusa
Sacramento River levee near Sycamore Slough
Comment
CAS-BOT-BC238630
Sambucus nigra subsp. caerulea
Roxana Stinchfield
1916-7-8
389
Colusa
Sycamore Slough, Stinchfield ranch
Comment
CAS-BOT-BC230039
Sanicula bipinnatifida
Craig Thomsen; G. Harrington
2009-5-12
2837
Colusa
On Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd.
707
Comment
UCD82459
Sanicula bipinnatifida
Craig Thomsen; G. Harrington
2009-5-12
2837
Colusa
Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd.
707
Comment
UCD66530
Sanicula crassicaulis
Craig D. Thomsen
2000-4-12
2153
Colusa
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.
325
Comment
UCD66606
Sanicula tuberosa
Craig D. Thomsen
2000-5-11
2282
Colusa
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.
325
Comment
UCD67087
Schoenoplectus acutus var. occidentalis
Ellen Dean; G. Harrington, J. Alderson, E. Bayon, R. Willmarth
2008-6-8
5109
Colusa
BLM Payne Ranch, lands to the SW of jct of Hwys 16 and 20. Western edge of ranch on ridge above Cache Creek Canyon. Spring-fed stock pond at base of uphill climb east side of ridge trail.
510
Comment
RSA530101A
Schoenoplectus glaucus
D. W. Taylor
1989-8-4
10420
Colusa
Colusa National Wildlife Refuge, on Ohm Road ca. 0.5 miles north of Ware Road
24
Comment
JEPS95824
Schoenoplectus pungens var. longispicatus
Vernon H. Oswald and L. Ahart
1999-6-22
9772
Colusa
Fouts Springs Rd. (M10) 6.7 mi west of Stonyford-Elk Creek Rd.: T18N R7W Sect. 33, 1960 ft, chaparral, serpentine substrate
597
Comment
SEINET9769686
Schoenoplectus tabernaemontani
Richard Carter
2006-7-31
Colusa
3.7 mi SSE Colusa, jct. Hwy CA 20 and Hwy CA 45
Comment
JEPS110449
Scirpus acutus var. occidentalis
Lowell Ahart
2006-8-22
13214
Colusa
South side of Stony Creek, about 100 yards W of the bridge across Stony Creek, just N of Stonyford.
349
Comment
UC1055825
Scirpus acutus var. occidentalis
Frank W. Gould
1940-5-15
1257
Colusa
2.5 mi n Maxwell (in marshes along roadside); n of Maxwell
Comment
UC1100677
Scirpus acutus var. occidentalis
Herbert L. Mason, Verne Grant
1946-8-7
12987
Colusa
eight mi n Colusa (Butte Sink); , n of Colusa
Comment
UC1100902
Scirpus maritimus
Malcolm A. Nobs, S. Galen Smith
1949-9-9
1872
Colusa
rice fields 3 mi w Williams; w of Williams
Comment
CHSC75613
Scutellaria californica
Vernon H. Oswald; Lowell Ahart
1999-6-22
9775
Colusa
West of Stonyford on Fouts Springs Rd. (M10) 0.5 mi east of Dixie Glade Picnic Area.
975
Comment
UC1299474
Scutellaria siphocampyloides
Freed W. Hoffman
1947-6-19
1661
Colusa
Cooks Springs, western Colusa County Cooks Springs
Comment
CHSC112016
Scutellaria siphocampyloides
David Isle; F. Thomas Griggs
1979-5-23
2073
Colusa
Mendocino National forest. Off N side Goat Mtn. Rd, about 2 miles W of jct w/ Lodoga-Stonyford Rd. Near old fire pre-attack triangular sign I-7 on metal T-post.
426
Comment
JEPS73510
Sedum obtusatum subsp. boreale
L. R. Heckard
1972-7-10
3128 A
Colusa
among rocks of promontory on se corner of Snow Mt. overlooking and 3 mi nw Fouts Springs; se corner Snow Mt., nw of Fouts Springs
1828
Comment Read comments Aug 17 2011
RSA201801
Senecio eurycephalus
J. M. Tucker
1968-5-4
4108
Colusa
Bear Valley, 8.6 miles (by Bear Valley Road) northwest of junction with State Highway 20.
396
Comment
CDA11923
Senecio greenei
G. F. Hrusa
1989-5-7
6078
Colusa
North Coast Biodiversity Arena; N side of Little Stony Creek, approx. 3.7 miles upstream from intersection of Cedar Mtn. Rd. and Stonyford-Lodoga Rd.
Comment
CHSC79528
Sidalcea diploscypha
B. Castro; L. P. Janeway
2000-5-1
1104 A
Colusa
Vicinity of Sites and Grapevine Creek.
365
Comment
UCD116629
Sidalcea diploscypha
Clinton C. Shock
1980-5-3
63
Colusa
Bear Valley west side, about 12 miles northwest of State Highway 20 near State Highway 16.
390
Comment
JEPS50051
Sidalcea hartwegii
W. L. Jepson
1932-5-8
16278
Colusa
Lodoga Lodoga (w Colusa Co.)
Comment
UCD82538
Sidalcea hartwegii
Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth
2009-5-20
5691
Colusa
Walker Ridge. Along Walker Ridge Road, ca. 0.5 road mi N of intersection with road to Indian Valley Reservoir. Parking area, undeveloped roads, flats and slopes on W side of road.
817
Comment
CHSC91809
Sidalcea oregana subsp. hydrophila
G. F. Hrusa; S. Winterton
2004-6-6
16385
Colusa
Northern California. Inner North Coast Ranges. Mendocino National Forest. Rd 21N06D off 21N06 off Forest Rd. M3. Lower Markham Ridge at small pond site. Pond visible on 7.5' topo.
1348
Comment
UC767046
Silene antirrhina
R. F. Hoover
1938-4-24
3215
Colusa
Sand Creek foothills w Arbuckle; Sand Creek foothills w of Arbuckle
Comment
CDA15466
Silene californica
G. F. Hrusa, WTD
1998-6-19
14603
Colusa
North Coast Ranges; Upper Little Stony Creek. Goat Mtn. Rd. ~ 2 km. W of campground.
Comment
UC583287
Silene californica
Lewis S. Rose
1936-4-27
36179
Colusa
11 mi nw Rumsey; nw of Rumsey
304
Comment
POM174579
Silene californica
Roxana S. Ferris
1926-4-23
6444
Colusa
Near top of Grapevine Grade on Stonyford-Sites Road.
Comment
HSC62780
Silene campanulata subsp. glandulosa
Thomas Wood
1979-4-14
108
Colusa
1067
Comment
UCR37946
Silene gallica
Brian Kearney, Mike Malamus, Peter Williams
1984-4-29
10
Colusa
Bear Valley Road, 2 mi. north of Hwy 20.
366
Comment
JEPS124241
Silene laciniata subsp. californica
Lowell Ahart
2015-4-1
19992
Colusa
Inner North Coast Range. 1/2 mile east of Lake County Line, 12 miles (air) east-northeast of Clear Lake (town), 17 miles (air) west of Williams.
Comment
SEINET11262894
Silene laciniata subsp. californica
Richard R. Halse
2014-3-25
9036
Colusa
Along the Bear Valley Road ca. 1.8 miles W NW of its junction with State Hwy 20.; 0
378
Comment
UCD56665
Silene laciniata subsp. californica
Jack Alderson
2007-3-25
1
Colusa
BLM Payne Ranch. Destinella Flat area, just E of the Lake County border, ca. 3.4 road miles along Hwy 20 from the junction of Hwy 16 and Hwy 20. South side of Hwy 20.
555
Comment
UCD99009
Silene laciniata subsp. californica
Kathleen A. Robson
1981-5-25
41
Colusa
from Stonyfield, take Fouts Spring Road 8 miles west to Fouts Springs, continue 1 mile West along roadside.
579
Comment
CHSC32220
Silene verecunda
James Jokerst
1980-8-6
1053
Colusa
North Coast Ranges. Near Snow Mountain (west). Ridge top.
Comment
JEPS73457
Silene verecunda subsp. platyota
L. R. Heckard
1972-7-8
3061
Colusa
saddle between East and West Peaks of Snow Mt. saddle between East and West Peak of Snow Mt.
1981
Comment
UCD81234
Sisymbrium irio
Ellen Dean; K. Mawdsley and B. Rice
2009-5-6
5571
Colusa
Payne Ranch, lands to the SW of the jct. of Hwys. 16 and 20. Along Bear Creek south of Brophy Canyon, near old access road that leaves Hwy. 16 near milepost 6.
218
Comment
CAS-BOT-BC75280
Sisymbrium officinale
Roxana S. Ferris
1926-4-21
6272
Colusa
On Sycamore Slough 2 miles west of Sycamore.
Comment
CHSC114941
Sisyrinchium bellum
Lowell Ahart
2015-4-10
20012
Colusa
In a small meadow, on the south side of Brim Road, about 2 miles west of the intersection of Bear ValleyRoad and Brim Road, about 17 miles (air) west of Williams. Meadow in Chaparral.
500
Comment
JEPS124213
Sisyrinchium bellum
Lowell Ahart
2015-4-10
20012
Colusa
About 2 miles west of the intersection of Bear Valley Road and Brim Road, about 17 miles (air) west of Williams.
Comment
HSC62938
Sisyrinchium bellum
Michael Dalke
1979-4-14
49
Colusa
Bear Valley Rd., 13 mi. N of Hwy. 20
396
Comment
SEINET3992537
Smilacina stellata
J. M. Tucker, L. K. Mann
1959-5-30
3529
Colusa
Small lake in Mill Valley, ca. 0.25 mi N. W. of Lower Letts Valley, and ca. 4 air miles N. of Goat Mountian Lookout
1219
Comment
CHSC112626
Solanum americanum
Lowell Ahart
2013-10-1
19082
Colusa
Inner North Coast Range. Strand of East Park Reservoir, about 2 1/2 miles (air) southeast of Stonyford, about 2 1/2 miles northwest of Lodoga, about 10 miles (air) northwest of Sites.
364
Comment
POM62090
Solanum americanum
Roxana Stinchfield
1916-7-7
385
Colusa
Sycamore Slough bed. Stinchfield Ranch.
Comment
UCR201554
Solanum americanum
George K. Helmkamp, E. A. Helmkamp
2008-10-14
14256
Colusa
Sacramento Valley, along CA-20, 0.2 mile east of the Sutter County line
9
Comment
CDA33581
Solanum elaeagnifolium
Robin Breckenridge
2010-8-17
PDR# 1313487
Colusa
Interstate 5 north, 1 mile before Hahn Rd. exit.
0
Comment
NY821006
Solanum nodiflorum
R. J. Stinchfield
1916-7-7
385
Colusa
Stinchfield Ranch. Sycamore Slough bed
Comment
HSC62930
Solanum parishii
Kenneth Clark
1979-4-14
103
Colusa
Bear Valley Rd. 3.9 mi. N of State Rte. 20
412
Comment
UCD13386
Solanum parishii
Charles Martin
1986-5-17
35
Colusa
Mendocino National Forest. 3.7 miles west of Stonyford on Forest Service Road 18NO1.
Comment
UCD84438
Solanum parishii
Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk
2010-6-2
6048
Colusa
Walker Ridge. Along Walker Ridge Road, N of turnoff to Indian Valley Reservoir but S of Til Jones Spring. Many old undeveloped roads here.
817
Comment
CHSC94521
Solanum physalifolium var. nitidibaccatum
Lowell Ahart
2006-8-22
13223
Colusa
South side of Stony Creek, about 100 yards west of the bridge across Stony Creek, just north of Stonyford.
349
Comment
CAS-BOT-BC35921
Solanum umbelliferum
Roxana S. Ferris
1926-4-23
6591
Colusa
Near Stonyford.
Comment
UC1053447
Solanum umbelliferum
Rimo Bacigalupi, Arthur Holmgren
1950-4-26
3175
Colusa
10 mi nw of Sites (Grapevine Grade to Lodoga); Grapevine Grade
Comment
UC1733755
Solanum umbelliferum
Kay H. Beach
1940-5-16
658
Colusa
Colusa and Lake county line
Comment
CDA15549
Solidago californica
G. F. Hrusa
1998-10-28
14900
Colusa
North Coast Ranges; along Cedar Camp Rd. as it enters Little Stony Ck. Cyn., approx. 1 mi. from Lodoga/Stonyford Rd.
Comment
HSC94133
Solidago velutina subsp. californica
G. Fred Hrusa
1998-10-28
14900
Colusa
Roadside along Cedar Camp Rd. as it enters Little Stony Creek Canyon, approx. 1 mi. from Lodoga/Stonyford Rd.
400
Comment
JEPS80224
Sonchus asper
L. R. Heckard and J. Hickman
1980-7-3
5381
Colusa
slopes about Summit Springs (sw slope Snow Mt.); sw slope Snow Mt.
1554
Comment
UCD72466
Sonchus asper
Ellen Dean; J. Alderson, N. Voegtly, and C. Thomsen
2007-5-12
3800
Colusa
BLM Payne Ranch, lands to the SW of jct of Hwys 16 and 20. Area of ranch west of Hwy 16, near bridge that spans Bear Creek, ca. 4.5 road miles south of junction of Hwy 16/20. Bank of Bear Creek near north end of bridge, west side of creek.
260
Comment
CAS-BOT-BC236520
Sorghum bicolor
Mary L. Bowerman
1940-1-1
3836
Colusa
Wall Point Trail, Mount Diablo
Comment
CAS-BOT-BC235304
Sorghum halepense
Herbert L. Mason
1945-9-19
12723
Colusa
Below causway over Butte Sink spillway, east bank of Sacramento River, 1 mile north of Colusa
Comment
UC1100454
Sorghum halepense
Herbert L. Mason
1945-9-10
12723
Colusa
1 mi. n. Colusa (below causeway over Butte Sink spillway, e. bank Sacramento R.); Sacramento R.
Comment
UCD99217
Spergularia macrotheca var. leucantha
Malcolm A. Nobs; S. Galen Smith
1949-6-18
874
Colusa
Highway 99 W, near Delevan.
Comment
CAS-BOT-BC390762
Spergularia marina
G. B. Rossbach; R. P. Rossbach
1938-5-31
637
Colusa
2 mi. so. of Maxwell
Comment
CDA41017
Stachys ajugoides var. ajugoides
Agr. Comm Staff
1960-5-11
s.n.
Colusa
[no additional data]
0
Comment
CHSC80392
Stachys ajugoides var. rigida
Caroline Warren; Jenny Marr, Heidi West, Natalie Wight
1998-6-11
Colusa
Vicinity of Funks Creek and Logan Ridge.
106
Comment
JEPS110534
Stachys ajugoides var. rigida
Lowell Ahart
2006-10-31
13539
Colusa
On the south side of road M 10, about 6 miles by road west of Stonyford
583
Comment
JEPS104386
Stachys albens
Lowell Ahart
2003-7-14
10381 -A
Colusa
Along a stream, field on the south side of Highway 20, ca 2 mi sw of the intersection of Highway 20 and Bear Valley Rd, ca 21 mi (by road) sw of Williams.
520
Comment
SEINET13710181
Stachys albens
Lowell William Ahart, Lowell William Ahart
2003-1
10381 -A
Colusa
2 Mi. SW Jct. Hwy 20 and Bear Valley Road, 21 Mi. SW of Williams (39 Deg 00'23.7"N, 122 Deg 23' 59.5"W) 1708'W)
521
Comment
UCD64039
Stachys albens
Craig D. Thomsen
2000-6-23
2417
Colusa
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, Colusa Co. milepost 2.63.
304
Comment
CHSC62930
Stellaria nitens
Vernon H. Oswald; Lowell Ahart
1994-4-6
6072
Colusa
Goat Mtn. Rd. 0.8 mi S of Sullivan Creek Bridge, SW of Digger Pine Flat, S of Stonyford. On the edge of the road.
487
Comment
JEPS80756
Stephanomeria lactucina
L. R. Heckard and J. C. Hickman
1981-7-29
5723
Colusa
spur about 1 km se Summit Springs (s side of Snow Mt.); Snow Mt.
1554
Comment
CHSC91026
Streptanthus
D. Isle
2003-6-10
360
Colusa
Mendocino National Forest--North Coast Ranges. Little Stony Creek Watershed. GPS: 10S 0526306E 4345340N.
1365
Comment
UCD23461
Streptanthus batrachopus
A. M. Shapiro
1988-6-6
s.n.
Colusa
Goat Mountain Road.
762
Comment
CAS-BOT-BC61238
Streptanthus breweri
Alice Eastwood; John Thomas Howell
1938-5-16
5627
Colusa
Lake-Colusa county line. On road to Williams.
Comment
UC1733757
Streptanthus breweri
Kay H. Beach
1940-5-16
1258
Colusa
Colusa and Lake county line
Comment
UC1736740
Streptanthus breweri
Dean W. Taylor
1998-6-16
16663
Colusa
Bear Valley road 1.5 mi NW junction Highway 120; near mouth Warnick Canyon
350
Comment
UCD110407
Streptanthus breweri
Daniel Slakey; CNPS volunteers
2011-6-12
3
Colusa
Walker Ridge. Brim Rd., 1/4 mile E of Walker Ridge Rd. Population extends about 1 mile farther east.
647
Comment
CAS-BOT-BC61237
Streptanthus breweri
Roger Raiche
1985-5-25
50460
Colusa
Walker Ridge, Brim Road, near intersection West Walker Road.
637
Comment
HSC62796
Streptanthus breweri
M. A. Ericksen
1979-4-14
207
Colusa
Adjacent to Bear Valley Rd., 3.9 mi. from Hwy. 20
Comment
HSC72216
Streptanthus breweri
Thomas W. Nelson, Jane P. Nelson
1980-6-24
5872
Colusa
Colusa-Lake County line, along trail to Snow Mtn., 0.5 mi. from trailhead
1616
Comment
CHSC48348
Streptanthus breweri var. breweri
Vernon Oswald
1984-5-2
1166
Colusa
Fouts Springs Rd. (M10) in the Mendocino National Forest, 5.1 mi w of Stonyford.
548
Comment
UC1051749
Streptanthus breweri var. breweri
Helen K. Sharsmith
1953-6-17
4251
Colusa
above Wilbur Springs; Inner North Coast Ranges, Wide Awake Mercury Mine
462
Comment
UCD57659
Streptanthus breweri var. breweri
Madeline Christopher; with Plant Biology 102
2007-4-29
2
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of State Routes 20 and 16. Eastern/Central part of ranch. Craig Canyon. North side of unimproved road.
335
Comment
UCD58119
Streptanthus breweri var. breweri
Ellen Dean; PLB 102 Class
2007-4-29
3714
Colusa
Payne Ranch. West of Hwy. 16. Ca. 2 road miles S of junction of Hwy. 20 and Hwy. 16. Craig Canyon. Along unimproved road.
328
Comment
UCD82160
Streptanthus breweri var. breweri
Ellen Dean; G. Harrington, C. Thomsen,R. Wilmarth,Chiao-Yi Cheng
2009-5-20
5693
Colusa
Walker Ridge. Til Jones Spring area along Walker Ridge Road.
833
Comment
JEPS93866
Streptanthus drepanoides
Vernon H. Oswald and Lowell Ahart
1998-7-15
9275
Colusa
Bartlett Springs Road 2.6 mi w of Bear Valley Road (0.3 mi e of Sawtelle Valley and Grapevine Flat Roads)
624
Comment Read comments Jul 24 2018
CHSC25074
Streptanthus glandulosus
D. Joley
1968-3-30
Colusa
On Hwy 20 10 mi w of Williams.
Comment
CHSC56756
Streptanthus glandulosus
Joel Hoskins
1989-4-1
1
Colusa
Ca. 5 yds n of Hwy 20, Salt Canyon, n side of Salt Creek, Hwy 20, 11 mi. wsw of Williams.
143
Comment
CAS-BOT-BC87086
Streptanthus glandulosus subsp. glandulosus
Robert F. Hoover
1938-4-23
3205
Colusa
Grade on Rumsey-Arbuckle Road.
Comment
UC1178879
Streptanthus glandulosus subsp. glandulosus
Herbert L. Mason
1941-4-5
12408
Colusa
on road between Maxwell and Stonyford just w summit of grade
Comment
UC596393
Streptanthus glandulosus subsp. glandulosus
R. F. Hoover
1938-4-23
3205
Colusa
grade on Rumsey-Arbuckle road Rumsey-Arbuckle road
Comment
UC764981
Streptanthus glandulosus subsp. glandulosus
R. F. Hoover
1938-4-23
3205
Colusa
grade on Rumsey-Arbuckle road
Comment
SEINET11993370
Streptanthus morrisonii
Unknown
1985-1
50668
Colusa
W of Ladoga, off of Goat Mt. Rd, Frenzel Creek drainage
707
Comment
SEINET11993700
Streptanthus morrisonii
Unknown
1984-1
RR 40259
Colusa
W of Ladoga, Goat Mt Rd, along Little Stonyford Cr (2 mi W of origin of road at Ladoga-Stonyford Rd)
427
Comment
UCD146583
Streptanthus morrisonii
Roger Raiche
1984-7-4
RR 40259
Colusa
west of Ladoga, Goat Mt. Road, along Little Stonyford Creek (2.0 miles west of origin of road at Ladoga-Stonyford Rd).
426
Comment
UCR141627
Styrax officinalis var. californicus
Roman Gankin
1959-4-19
330
Colusa
Along road to Walker Ridge from Bear Valley
Comment
UCD119091
Styrax redivivus
Tom Aldrich
1975-5-25
17
Colusa
2.3 miles west of Leesville Grade, Wilbur Springs Road junction, toward Walker Ridge.
Comment
UCD119103
Styrax redivivus
Roman Gankin
1965-5-5
518
Colusa
On Bartlett Springs Road from Bear Valley, ca. 2 miles west of junction with Lodoga Road.
Comment
CHSC29751
Suaeda nigra
K. R. Stern
1980-6-30
6653
Colusa
Vernal pool, south central border of Colusa National Wildlife Refuge.
45
Comment
UCD163324
Suaeda nigra
Craig D. Thomsen
1997-4-19
1906
Colusa
Wilbur Springs. About 4 miles north of Hwy 20.
Comment
CAS-BOT-BC97651
Symphyotrichum chilense
Roxana Stinchfield
1916-7-11
437
Colusa
Sycamore Slough Road
Comment
CHSC92638
Symphyotrichum spathulatum
D. Isle
2005-9-14
1172
Colusa
Mendocino National Forest--North Coast Ranges. Middle Fork Stony Creek Watershed. Meadow west of Angel Spring, Snow Mountain Wilderness. 10S 0522348E 4358185N = Angel Springs.
Comment
UC727671
Symphyotrichum subulatum
Milo S. Baker
1946-9-4
11614
Colusa
near locked gate of Colusa Gun Club; Butte Sink
Comment
UCD86110
Taeniatherum caput-medusae
Beecher Crampton
1958-5-19
4788
Colusa
8.5 miles east (probably west) of Williams, just off of Highway 20.
Comment
HSC31622
Tamarix parviflora
Glenn McGourty
1974-4-20
6
Colusa
Roadcut of Hwy. 16, 17 mi. E of Esparto
Comment
HSC41184
Tamarix parviflora
Robert M. Specht, John Rehling
1976-4-12
383
Colusa
7.5 mi. S of Hwy. 20 on Hwy. 16
Comment
UCD101743
Tamarix parviflora
S. R. Sims
1971-4-24
34
Colusa
16 miles northwest of Rumsey; along a watercourse.
Comment
CHSC59989
Tetrapteron graciliflorum
Terri Simon
1975-4-20
14
Colusa
Field. Bear Valley Road, 8.7 miles north of State Highway 20.
Comment
UCD71257
Tetrapteron graciliflorum
Kathi A. Zurakowski
1984-4-29
s.n.
Colusa
Bear Valley, 3.2 miles north of Wilbur Springs turnoff; in field west of road; in heavy clay soil; in full sun; yellow flowers, red in age.
381
Comment
CAS-BOT-BC240289
Thalictrum fendleri
Craig D. Thomsen; J. Wiegand; S. Harrison; G. Harrington; A. Fulks
2008-4-22
2730
Colusa
Walker Ridge. Eaten Springs, 4 mi N of Hwy 20, ca. 1.5 mi E of Walker Ridge Rd.
609
Comment
UCD81708
Thalictrum fendleri var. polycarpum
Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia
2009-5-27
5715
Colusa
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 20. W side of road.
833
Comment
UCR47922
Thelypodium flavescens
Walter C. Overton
1980-4-14
s.n.
Colusa
Side canyon on road into Bear Valley, c. 1 mi. north of junction of State Hwys 16 and 20.
Comment
UCD93333
Thinopyrum ponticum
Beecher Crampton
1963-8-5
6867
Colusa
1/4 mile E of Cortena.
Comment
HSC66006
Thysanocarpus curvipes
Teri Bartowski, Shane Feusier, Ruth Takaki, Carol Zimmerer
1980-4-19
41
Colusa
5.4 miles from Lodoga, along Little Stony Creek at Digger Pine Campground
Comment
CAS-BOT-BC88159
Thysanocarpus curvipes
Roxana S. Ferris
1917-4-14
553
Colusa
7 miles west of Arbuckle.
Comment
SEINET3166339
Thysanocarpus curvipes subsp. curvipes
P. J. Alexander, C. D. Bailey
2009-3-31
972 --1
Colusa
Eastern foothills of the North Coast Ranges, east side of High Valley on Leesville Rd., 1.4 miles SE of Leesville, 14.5 miles west of Williams.
503
Comment
CHSC112230
Thysanocarpus laciniatus
Lowell Ahart
2013-5-1
18664
Colusa
On the east side of Bear Valley Road, about 2 1/2 miles (by road) northwest of the intersection of State Highway 20 and Bear Valley Road.
533
Comment
CHSC62928
Thysanocarpus laciniatus
Vernon H. Oswald; Lowell Ahart
1994-4-6
6065
Colusa
Goat Mtn. Rd. at Sullivan Creek, 1.2 mi SW of Digger Pine Flat, S of Stonyford. On the slopes bordering Sullivan Creek.
469
Comment
JEPS95519
Tonella tenella
Vernon H. Oswald and L. Ahart
1994-4-6
6068
Colusa
T17N R7W SE1/4 SW1/4 Sec. 36, 1540 ft, Chaparral. Goat Mtn. Rd. at Sullivan Creek, 1.2 mi SW of Digger Pine Flat, S of Stonyford
469
Comment
UCD56916
Tonella tenella
Ellen Dean; Gordon Harrington and Kate Mawdsley
2007-3-30
3519
Colusa
BLM Payne Ranch. Southwest of intersection of Hwy. 16 and Hwy. 20. In Craig Canyon.
318
Comment
POM163525
Torilis nodosa
Roxana S. Ferris
1926-4-21
s.n.
Colusa
On Sycamore slough, 2 miles from Sycamore
Comment
UCD41197
Torilis nodosa
James Salyards
1986-5-17
86 -
Colusa
Along Maxwell-Sites Road, 0.95 mi. east of Sites.
Comment
UCD57559
Torilis nodosa
Stephanie Castle; with Plant Biology 102
2007-4-29
2
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of State Routes 20 and 16. Meadow on the west side of State Route 16, ca. 2 road miles south of intersection with State Route 20. West side of Bear Creek, just north of Craig Creek.
304
Comment
CAS-BOT-BC172885
Toxicodendron diversilobum
Alice Eastwood
1921-4-11
10236
Colusa
Colusa
Comment
UCD163692
Toxicoscordion fontanum
Craig Thomsen
1999-4-27
1994
Colusa
Bear Valley. About 6 miles north of Hwy 20, west of Bear Valley Rd.
Comment
UCD139830
Toxicoscordion fremontii
Jim Nelson
Date Unknown
s.n.
Colusa
Wilbur Springs.
Comment
UCD15424
Toxicoscordion fremontii
Margit Sands
1985-4-13
27
Colusa
in Bear Valley, 3.8 miles north of Wilbur Hot Springs rd.
390
Comment
UCD139842
Toxicoscordion fremontii
Kim E. Steiner
1978-4-29
200
Colusa
Walker Ridge Road; 1.5 miles N of State Hwy 20.
777
Comment
UCD14319
Toxicoscordion fremontii
Kathi A. Zurakowski
1984-4-21
Colusa
Bear Valley, 3.2 miles north of Wilbur Springs turnoff; west side of the road.
381
Comment
UCD14425
Toxicoscordion fremontii
R. M. Rhode
1984-4-21
s.n.
Colusa
Bear Valley, 10 miles north of intersection of Highways 16 and 20.
426
Comment
CHSC49670
Toxicoscordion micranthum
Vernon Oswald
1984-5-2
1170
Colusa
Fouts Springs Rd. (M10) in Mendocino National Forest, 5.9 mi w of Stonyford.
60
Comment
UCD82530
Trichostema
Craig Thomsen; G. Harrington
2009-5-12
2886
Colusa
Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. East- facing hillslope above (west border) Eaton Springs meadow complex.
710
Comment
JEPS108910
Trichostema laxum
Lowell Ahart
2006-8-9
13093
Colusa
Gravel bar on the south side of Stony Creek, at Mine Camp, about 3 1/2 miles (air) west of Stonyford
455
Comment
RSA718053
Trichostema laxum
L. Ahart
2006-8-9
13093
Colusa
Gravel bar on the south side of Stony Creek, at Mine Camp, about 3.5 miles (air) west of Stonyford.
455
Comment
UCD55465
Trichostema laxum
Ellen Dean; Gordon Harrington
2006-10-6
3290
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of State Routes 20 and 16. Ranch can be accessed via north gate which is located on a road on the S side of State Route 20, 2.3 road miles W of jct of State Routes 16 and 20. In Thompson Canyon, along dirt road that parallels ephemeral drainage.
362
Comment
SEINET10499336
Trichostema laxum
Katherine L. Morris
1973-6-6
Morris 387
Colusa
Chaparral woodland and sparse oaks, on hwy 20, .3 mi e of lake co line.
Comment
UCSC005368
Trifolium
Randall Morgan
1995-5-16
2628
Colusa
Bear Valley
Comment
HSC45736
Trifolium albopurpureum
M. Alcasas
1978-4-22
46
Colusa
Bear Valley Rd., 1.5 mi. from its junction with Hwy. 20
412
Comment
RSA590138
Trifolium albopurpureum
Michael A. Vincent, Robert Rhode, Karl Vincent
1996-3-30
7292
Colusa
Along Bear Valley Road, 4.6 miles N of junction Wilbur Springs Road
Comment
SEINET11173449
Trifolium albopurpureum
J. M. Tucker, Dorothy Dreyfus
1967-4-29
4036
Colusa
South end of Bear Valley, 6.3 miles north of junction of Bear Valley Road with State Highway 20
427
Comment
UCD107366
Trifolium albopurpureum
R. Tofsrud
1949-4-1
s.n.
Colusa
Off Highway 20, E of Williams about 6 miles.
Comment
HSC96791
Trifolium albopurpureum var. dichotomum
J. Carey, J. Leffingwell, A. Hong
1995-5-6
80
Colusa
.5 mi. E down Brim Rd. from its jct. with Walker Ridge Rd.
640
Comment
JEPS124214
Trifolium bifidum var. bifidum
Lowell Ahart
2015-4-10
20009
Colusa
About 2 miles west of the intersection of Bear Valley Road and Brim Road, about 17 miles (air) west of Williams.
Comment
CHSC107959
Trifolium bifidum var. decipiens
B. Castro; T. Boullion
2011-4-20
1842
Colusa
Sacramento Valley. Extreme W edge of Sacramento Valley; ca 5 air mi NW of Maxwell, 0.8 mi SE of Funks Reservoir and 1000 ft northeast of Tehama-Colusa Canal. Off north end of vernally moist swale which extends northeast of large +- saline/alkaline wetland/marsh, in grassy uplands.
49
Comment
CHSC115393
Trifolium bifidum var. decipiens
Lowell Ahart
2015-4-10
20010
Colusa
On the south side of Brim Road, about 2 miles west of the intersection of Bear Valley Road and Brim Road, about 17 miles (air) west of Williams.
500
Comment
HSC45684
Trifolium ciliolatum
Patricia Shesgreen
1978-4-22
46
Colusa
Bear Valley Rd., 1.5 mi. from its junction with Hwy. 20
412
Comment
CHSC107963
Trifolium depauperatum var. amplectens
B. Castro; T. Boullion
2011-4-20
1840
Colusa
Sacramento Valley. Extreme W edge of Sacramento Valley; ca 5 air mi NW of Maxwell, 0.8 mi SE of Funks Reservoir and 1000 ft northeast of Tehama-Colusa Canal. In grassy vernally moist swale which just north of large +- saline/alkaline wetland/marsh, in small vernal pool.
49
Comment
CHSC27812
Trifolium depauperatum var. depauperatum
Jan M. Karaz
1978-4-9
8
Colusa
Ca. 0.3 mi w of jct of Hwys 20 and 16, s side of Bear Creek, 18 mi sw of Williams.
321
Comment
UCR212346
Trifolium depauperatum var. truncatum
Craig D. Thomsen
2000-4-12
2165
Colusa
Bear Creek Botanical Management Area. On Caltrans right-of-way, south side of Hwy 20, 0.25 mi west of Hwy 20/16 intersection, milepost 3.00
310
Comment
RSA590142
Trifolium depauperatum var. truncatum
Michael A. Vincent, Robert Rhode, Karl Vincent
1996-3-30
7289
Colusa
Along Bear Valley Rd., 2.5 mi. N jct. Wilbur Springs Rd.
Comment
HSC87052
Trifolium dichotomum
L. Blackford, S. Branch, D. Malm
1988-4-16
59
Colusa
6.1 mi. on Walker Ridge Rd. off Hwy. 20 at Blue Oak Campground
732
Comment
UCSC010689
Trifolium dichotomum
R. Morgan
1995-5-16
2630
Colusa
Bear Valley Road
Comment
UCR146312
Trifolium fragiferum
Beecher Crampton
1961-7-20
5933
Colusa
2 mi south of Grimes
Comment
CHSC107981
Trifolium fucatum
B. Castro; Robin Carter, Jessica Boyt
2011-4-25
1853
Colusa
Sacramento Valley. Extreme west edge of Sacramento Valley; ca 5 air mi NW of Maxwell, I mi southeast of Funks Reservoir and 0.2 mi northeast of Tehama-Colusa Canal. Ca 280 ft E of large +- saline/alkaline wetland/marsh, on S edge of compacted E-W road track that goes through marsh.
49
Comment
CHSC84913
Trifolium fucatum
Ron P. Garcia
1995-4-1
5
Colusa
Ca. 0.3 mi w of jct of Hwys 20 and 16, s side of Bear Creek, ca. 18 mi sw of Williams.
321
Comment
UCR119031
Trifolium fucatum
Beecher Crampton
1962-4-17
6221
Colusa
Sacramento Valley, 3.3 miles north of College City
91
Comment
UCD35561
Trifolium fucatum
Beecher Crampton
1958-4-21
4737
Colusa
13.8 miles northwest of Rumsey, along State Highway 16.
Comment
UCD35784
Trifolium fucatum
Beecher Crampton
1962-4-17
6221
Colusa
3.3 miles north of College City.
Comment
UCD58116
Trifolium glomeratum
Ellen Dean; PLB 102 Class
2007-4-29
3711
Colusa
Payne Ranch. Lands just west of Hwy. 16. About 2 road miles south of junction of Hwy. 20 and Hwy. 16.
308
Comment
UCD64277
Trifolium hirtum
Craig D. Thomsen
2000-3-31
2076
Colusa
Bear Creek Botanical Management Area. On Caltrans right-of-way, south side of Hwy 20, 0.25 mile west of Hwy 20/16 instersection, Colusa Co. milepost 3.00.
310
Comment
JEPS80818
Trifolium obtusiflorum
L. R. Heckard and J. C. Hickman
1981-7-31
5789 B
Colusa
Box Spring Snow Mtn (e side of mountai4600 ft)
Comment
JEPS94737
Trifolium obtusiflorum
Vernon H. Oswald and Lowell Ahart
1998-7-15
9302
Colusa
6.3 mi n of Highway 20 (w side of county on Walker Ridge Road 8.2 mi s of Bartlett Springs Road); Walker Ridge Road
792
Comment
SBBG119886
Trifolium obtusiflorum
L. Ahart
2006-8-9
13130
Colusa
N side and under bridge across Stony Crk, just N of Stonyford
347
Comment
UCD82721
Trifolium obtusiflorum
Craig Thomsen; G. Harrington
2009-5-14
2904
Colusa
Colusa County on Walker Ridge: about 200 yds. south of spur road, 1/2 mile east of Walker Ridge Road, en route to Eaton Springs.
813
Comment
UCSC011130
Trifolium obtusiflorum
Lowell Ahart
2006-8-9
13130
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
347
Comment
SBBG128768
Trifolium obtusiflorum
L. Ahart
2013-5-1
18679
Colusa
N side of the wash, N side of State Hwy 20, just E of Lake County Line, 12.2 mi (air) ENE of Clear Lake (town), 17.1 mi (air) W of Williams
566
Comment
UCD134781
Trifolium resupinatum
Josh Davy
2013-6-15
s.n.
Colusa
Pasture just north of Williams on the east side of I-5.
21
Comment
JEPS110097
Trifolium variegatum
Lowell Ahart
2006-8-9
13131
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford
347
Comment
UC16913
Trifolium wormskioldii
J. Burtt Davy
1898-5-1
Colusa
near Princetown
Comment
UCD82622
Triglochin maritima
Craig Thomsen; G. Harrington
2009-5-12
2892
Colusa
Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd.
707
Comment
UCD163681
Triphysaria eriantha
Craig Thomsen
1999-4-15
1982
Colusa
Bear Valley. About 5 miles north of Hwy 20, west of Bear Valley Rd.
Comment
UCD64257
Triphysaria eriantha
Craig D. Thomsen
2000-3-31
2057
Colusa
Bear Creek Botanical Management Area. On Caltrans right-of-way, south side of Hwy 20, 0.25 mile west of Hwy 20/16 instersection, Colusa Co. milepost 3.00.
310
Comment
UCR212332
Triphysaria eriantha
Craig D. Thomsen
2000-3-31
2057
Colusa
Bear Creek Botanical Management Area. On Caltrans right-of-way, south side of Hwy 20, 0.25 mi west of Hwy 20/16 intersection, milepost 3.00
310
Comment
HSC34867
Triphysaria eriantha
Thomas W. Nelson, James Nelson
1975-3-27
1771
Colusa
Bear Valley Rd.
Comment
CHSC114969
Triphysaria versicolor subsp. faucibarbata
Lowell Ahart
2015-4-1
20003
Colusa
In the field on the west side of Leesville Lodoga Road, abot 1/2 mile south of Lodoga, about 16 miles (air) west of Maxwell.
365
Comment
CHSC107985
Triteleia hyacinthina
B. Castro; L. Janeway
2011-4-27
1868
Colusa
Sacramento Valley. Extreme west edge of Sacramento Valley; approxamately 0.7 mi southeast of Funks Reservoir and 350 ft northeast of Tehama-Colusa Canal. Scattered in lush grassland northwest of large +/- alkaline marsh.
52
Comment
CAS-BOT-BC361304
Triteleia laxa
Richard R. Halse
2013-3-26
8737
Colusa
Along the Leesville Road ca. 4.6 miles NW of its junction with State Hwy 20, west of Williams.
157
Comment
CHSC70922
Triteleia laxa
Vernon Oswald; Lowell Ahart
1998-4-21
8945
Colusa
Stonyford-Lodoga Rd 3.7 mi south of Stonyford.
384
Comment
JEPS83146
Triteleia laxa
L. R. Heckard
1972-7-10
3119
Colusa
near Trout Creek (crossing of trail to Box Spring); Snow Mt.
1828
Comment
POM276975
Triteleia laxa
Lyman Benson
1929-3-26
1044
Colusa
Williams
Comment
RSA537523
Triteleia laxa
Barbara Ertter
1989-7-1
8613
Colusa
Road to Goat Mountain Lookout 1.7 miles S of Rt. M-10 (Bear Creek-Fouts Spring Road) at head of S Fork Stony Creek, ca. 12 airmiles WSW of Stonyford.
1463
Comment
SEINET199007
Triteleia laxa
Helen K. Sharsmith
1953-6-19
4270
Colusa
Mendocino National Forest ; East slope Snow Mountain near Paradise Creek in mixed chaparral and forest
823
Comment
SEINET5585730
Triteleia laxa
Richard R. Halse
2013-1
8737
Colusa
Along the Leesville Road ca. 4.6 miles northwest of its junction with State Hwy. 20, west of Williams.
Comment
UCD57465
Triteleia laxa
Ellen Dean; W. Murray, J. Alderson, B. Weiss, M. Starbuck
2007-4-7
3654
Colusa
Payne Ranch (owned by BLM), lands just west of Hwy 16, about 2 road miles south of junction of Hwy 20 and Hwy 16. Craig Canyon, along unimproved road.
322
Comment
HSC72157
Triteleia laxa
J. P. Smith, Thomas W. Nelson, Jane P. Nelson
1978-4-2
9531
Colusa
Bear Valley Rd, 3 mi. from its junction with SR 20
366
Comment
RSA523190
Triteleia laxa
R. R. Halse
1989-5-7
3825
Colusa
Along the Leesville Road, 3 miles southeast of Leesville, just below the summit of the pass on the east side
480
Comment
UC1051718
Triteleia laxa
Helen K. Sharsmith
1953-6-19
4270
Colusa
e slope of mountain near Paradise Creek; Inner Northern Coast Ranges, Mendocino National Forest, Snow
822
Comment
UCD66461
Triteleia peduncularis
Craig D. Thomsen
2000-6-23
2410
Colusa
Bear Creek Botanical Management Area. Caltrans right-of-way, on south side of Hwy 20, ca. 0.25 mile west of Hwy 20/16 instersection, near Colusa Co. milepost 3.00.
310
Comment
CAS-BOT-BC527388
Triteleia peduncularis
Lillian S. Mott
1965-5-31
LM 6550
Colusa
Highway 20 east of Clear Lake
396
Comment
RSA202879
Triteleia peduncularis
Annetta Carter
1953-6-20
3241
Colusa
Near summit east of Hough Springs on Bartlett Springs Road.
Comment
SEINET3888961
Triteleia peduncularis
Annetta Carter
1953-6-20
3241
Colusa
Near summit east of Hough Springs on Bartlett Springs Road.; 0
Comment
RSA714649
Triticum aestivum
Daisie Huang
2006-4-16
6041601
Colusa
Colusa Trough and Grimes-Arbuckle Road. Ditch next to field.
11
Comment
CHSC86968
Tropidocarpum gracile
B. Castro
2003-5-15
1435
Colusa
Vicinity of Logan Ridge, Sulphur Gap and Lurline Creek. Along sides of dirt road near concluence of small creek, on west edge of Sacramento Valley.
79
Comment
JEPS118683
Tropidocarpum gracile
David Isle, Ronda Isle
2009-4-1
1910
Colusa
W of Isle barn & field adj garden fence. 2253 Dennis Dr, Stonyford. Gilmore Peak 7.5' quad.
Comment
HSC102792
Tropidocarpum gracile
David Isle, Rhonda Isle
2009-4-1
1910
Colusa
Stonyford; Dennis Drive, west of Isle barn and garden
375
Comment
UCD163866
Typha angustifolia
Craig D. Thomsen
2001-5-31
2554
Colusa
Bear Creek Canyon, south of Bear Valley. About 4 miles north of Hwy 20.
Comment
UCD72405
Typha latifolia
Ellen Dean; G. Harrington, J. Alderson, E. Bayon, R. Willmarth
2008-6-8
5120
Colusa
BLM Payne Ranch, lands to the SW of jct of Hwys 16 and 20. Southwestern part of ranch, upslope of confluence of Bear and Cache Creeks. Along old hunting camp road southeast (downslope) of junction with ridge trail.
384
Comment
SEINET7075570
Uropappus lindleyi
A. G. Vestal
1955-4-5
s.n.
Colusa
In mountains [Cortina Ridge] west of Williams on Route 20 at Salt Canyon. 39? deg. 6' 22" North Latitude, -122? deg. 19' 15" West Longitude. UTM Zone 10, 558719mE, 4328566mN. (NAD 27)]. [Coordinate Datum: WGS84/NAD83].
Comment
UC71622
Uropappus lindleyi
Miss Alice King
1905-1
Colusa
College City
Comment
RSA718531
Urtica dioica subsp. gracilis
L. Ahart
2006-10-31
13535
Colusa
Big Springs, on the south side of Letts Lake, about 13 miles (sir) SW of Stonyford.
1530
Comment
UC1736436
Verbena brasiliensis
Dean W. Taylor
1993-8-31
14068
Colusa
Sacramento National Wildlife Refuge, along North Fork Logan Creek
24
Comment
UCD68106
Verbena lasiostachys
Kathleen A. Robson
1981-5-25
45
Colusa
From Stonyford, take Fouts Springs Road 8 miles West to Fouts Springs, continue 1 mile West along roadside.
579
Comment
JEPS110057
Verbena lasiostachys var. lasiostachys
Lowell Ahart
2006-8-22
13212
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford
347
Comment
CHSC113134
Verbena lasiostachys var. scabrida
Lowell Ahart
2013-10-1
19091 A
Colusa
Inner North Coast Range. Strand of East Park Reservoir, about 2 1/2 miles (air) southeast of Stonyford, about 2 1/2 miles northwest of Lodoga, about 10 miles (air) northwest of Sites.
364
Comment
RSA0112572
Verbena lasiostachys var. scabrida
Lowell A. Ahart
2013-10-1
19091
Colusa
Strand of East Park Reservoir, about 2.5 miles (air) southeast of Stonyford, about 2.5 miles northwest of Lodoga, about 10 miles (air) northwest of Sites.
365
Comment
CHSC60692
Veronica peregrina subsp. xalapensis
Vernon H. Oswald
1993-4-14
5262
Colusa
W side of O'Hair Rd., just S of Hwy. 20, Colusa National Wildlife Refuge, SW of Colusa.
18
Comment
CHSC94467
Veronica peregrina subsp. xalapensis
Lowell Ahart
2006-8-9
13126
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
347
Comment
JEPS80213
Veronica peregrina subsp. xalapensis
L. R. Heckard and J. Hickman
1980-7-3
5367
Colusa
Summit Springs, sw slope of Snow Mountain Summit Springs; Snow Mountain, Summit Springs
1554
Comment
SD225893
Veronica peregrina subsp. xalapensis
Carol Witham, Jennifer Buck and Vernal Pool Team 2001
2001-4-30
147
Colusa
2 mi. south of the town of Colusa along Hwy 20, east of Hwy 20 and the Colusa airport, Dolan Ranch site, pool # DOL001
Comment
UC1179090
Veronica peregrina subsp. xalapensis
Herbert L. Mason
1947-3-29
13149
Colusa
3 mi ne of Colusa (along Butte Creek, Butte Sink); Butte Creek, Butte Sink
Comment
RSA176712
Veronica peregrina subsp. xalapensis
D. E. Breedlove
1963-4-20
4620
Colusa
12 miles W of Arbuckle on the Rumsey-Arbuckle Road.
Comment
CHSC89886
Vicia americana var. americana
B. Castro; L. P. Janeway
2001-4-18
1239
Colusa
Vicinity of Grapevine Creek, Sites-Lodoga Road, and Scotties Spring. Adjacent to dirt road paralleling N-S-trending creek. On gravel bar at confluence of two perennial creeks.
259
Comment
CHSC80384
Vicia benghalensis
Caroline Warren; Jenny Marr, Heidi West, Natalie Wight
1998-6-11
Colusa
Vicinity of Funks Creek and Logan Ridge.
106
Comment
UCD83716
Vicia sativa subsp. nigra
Joseph Schlottman; with PLB 102 class
2010-5-2
2
Colusa
East slope of Walker Ridge. Eaton Springs. Adjacent to main creek.
710
Comment
UCD163908
Vicia villosa
Sara Martin
2016-4-9
1
Colusa
BLM Bear Creek Ranch (Previously Payne Ranch). Lands to the SW of jct of Hwys 16 and 20. Just west of Cowboy Camp on east side of Bear Creek.
312
Comment
RSA0033768
Viola adunca
Barbara Ertter
1989-7-1
8605
Colusa
Road to Goat Mt. Lookout 1.7 mi. S of Rt M-10 (Bear Creek-Fouts Spring Rd) at head of S Fk Stony Creek, ca. 12 airmiles WSW of Stonyford.
1463
Comment
UC1761574
Viola adunca
Hoffman
1948-6-17
2618
Colusa
Upper Letts Valley
1310
Comment Read comments May 8 2018
UC2028224
Viola adunca
Barbara Ertter
1989-7-1
8605
Colusa
Road to Goat Mt Lookout 1.7 mi S of Rt M-10 (Bear Creek-Fouts Spring Road) at head of South Fork Stony Creek, ca. 12 airmiles WSW of Stonyford
Comment
HSC31310
Viola douglasii
Carter Schleicher
1974-5-4
26
Colusa
0.75 mi. from T junction of Walker Ridge Rd. and Indian Valley, near Clyde Mine
854
Comment
JEPS50291
Viola douglasii
Alice King
1906-4-1
Colusa
College City
Comment
JEPS73518
Viola douglasii
L. R. Heckard
1972-7-10
3137
Colusa
between Foutch Camp and Trout Creek crossing; Snow Mountain
1889
Comment
UCD56663
Viola douglasii
Sam Bledsoe
2007-3-25
1
Colusa
BLM Payne Ranch. Destinella Flat area, just E of the Lake County border, ca. 3.4 road miles along Hwy 20 from the junction of Hwy 16 and Hwy 20. South side of Hwy 20.
560
Comment
UCD56690
Viola douglasii
Gordon Harrington
2007-3-25
9
Colusa
BLM Payne Ranch. Destinella Flat area, just E of the Lake County border, ca. 3.4 road miles along Hwy 20 from the junction of Hwy 16 and Hwy 20. South side of Hwy 20.
584
Comment
UCD67093
Viola douglasii
Ellen Dean; Davis Botanical Society
2008-5-31
5023
Colusa
West of I-5 at Maxwell, Goat Mountain, ridge below summit off of Goat Mountain Road.
1734
Comment
UCD82461
Viola douglasii
Craig Thomsen; G. Harrington
2009-5-12
2839
Colusa
Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd.
707
Comment
UC1005691
Viola douglasii
Frank W. Gould
1939-4-7
627
Colusa
on road from Knoxville to Rumsey (just n of county line)
Comment
UCD40924
Viola douglasii
Kathi A. Zurakowski
1984-4-21
s.n.
Colusa
Bear Valley. Meadow at Barrel Springs Campsite (on road along ridge).
701
Comment
UCD40926
Viola douglasii
G. Robinson
1984-4-21
16
Colusa
Northwest of Barrel Springs Campground (ca. 200 m) off Barrel Springs Road. Adjacent to water well.
701
Comment
UCD66963
Viola glabella
Ellen Dean; Davis Botanical Society
2008-5-31
5007
Colusa
West of I-5 at Maxwell, east slope of Goat Mountain, along Goat Mountain Road, Cedar Grove Campground.
1311
Comment
CAS-BOT-BC203034
Vitis californica
Roxana S. Ferris
1926-4-22
6303
Colusa
Sycamore Slough near Sycamore
Comment
UCD81227
Vitis californica
Ellen Dean; K. Mawdsley, B. Rice, G. Harrington, and J. Alderson
2009-5-6
5564
Colusa
Payne Ranch, lands to the SW of the jct. of Hwys. 16 and 20. Destinella Flat area on the S side of Hwy. 20. Canyon to the south of Destanella Flat.
446
Comment
HSC72166
Vulpia microstachys
J. P. Smith, Thomas W. Nelson, Jane P. Nelson
1978-4-2
9541
Colusa
Bear Valley Rd., 1.3 mi. from its junction with Hwy. 20
366
Comment
HSC87055
Vulpia microstachys
Pat Daly
1988-4-16
52
Colusa
21.6 mi. off Hwy. 20 on Brim Rd., via Walker Ridge Rd.
518
Comment
UCD66700
Vulpia microstachys var. ciliata
Craig D. Thomsen
2001-4-12
2431
Colusa
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.
325
Comment
UC596025
Vulpia microstachys var. confusa
R. F. Hoover
1938-4-23
3208
Colusa
Upper Sand Creek
Comment
UCD93940
Vulpia microstachys var. confusa
Beecher Crampton
1958-4-21
4723
Colusa
along State Hwy. 16, junction of Bear and Cache Creeks, 7.4 miles northwest of Rumsey. Colusa-Yolo county line.
Comment
SEINET186048
Vulpia microstachys var. pauciflora
Annetta Carter
07/40/0001
1374
Colusa
Comanche Hills,4 mi. N. of Rumsey, Inner North Coast Range.
244
Comment
UCD94505
Vulpia microstachys var. pauciflora
Beecher Crampton
1958-4-21
4722
Colusa
along State Hwy. 16, junction on Bear and Cache creeks, 7.4 miles northwest of Rumsey, on county line.
Comment
CAS-BOT-BC184670
Vulpia myuros subsp. megalura
Roxana S. Ferris
1926-4-21
6278
Colusa
Sycamore Slough 2 miles from Sycamore
Comment
CHSC100271
Vulpia myuros var. hirsuta
D. Isle
1988-4-13
1511
Colusa
Mendocino National Forest - North Coast Ranges. Middle Fork Stony Creek Watershed. Mellow-D Ranch meadow just north of 1st bad erosion channel in area burned during 1987 Fouts Fire.
731
Comment
JEPS80221
Vulpia myuros var. myuros
L. R. Heckard and J. Hickman
1980-7-3
5376 A
Colusa
w of Summit Springs (sw slope of Snow Mt); Snow Mt.
1554
Comment
CHSC77916
Wyethia angustifolia
Jean Witzman; Beth Hendrickson
1999-5-6
Colusa
Vicinity of Antelope Valley, Huffmaster Road, and Sulphur Gap.
164
Comment
UCD58170
Wyethia angustifolia
Gordon Harrington
2007-5-19
60
Colusa
BLM Payne Ranch. Along Hwy 16, south of the the intersection of Hwy 16 and Hwy 20. East edge of Cowboy Camp parking area.
315
Comment
UC2014156
Wyethia angustifolia
Gordon Harrington
2007-5-19
60
Colusa
Colusa County: BLM Payne Ranch. Along Hwy 16, south of the the intersection of Hwy 16 and Hwy 20. East edge of Cowboy Camp parking area.
Comment
RSA589934
Wyethia glabra
Michael A. Vincent, Robert M. Rhode
1996-3-30
7271
Colusa
Along St Hwy 16, near mile marker 6/65, a little N of the Yolo Co. line; 6.65 mi S jct St Hwy 20.
Comment
JEPS32015
Wyethia helenioides
W. L. Jepson
1932-5-8
16293
Colusa
n of Stonyford (w Colusa County)
Comment
UC71626
Wyethia helenioides
Miss Alice King
1905-1-1
Colusa
College City
Comment
RSA232965
Wyethia helenioides
D. A. Young
1969-5-4
P 466
Colusa
10 miles W of Wilbur Springs, along Hwy 16.
610
Comment
CAS-BOT-BC383632
Xanthium spinosum
Roxana Stinchfield
1916-7-8
400
Colusa
Truck garden, Stinchfield ranch near Sycamore
Comment
JEPS15755
Yabea microcarpa
W. L. Jepson
1932-5-7
16275
Colusa
Lodoga; w Colusa County
Comment
UCD57621
Yabea microcarpa
Joseph A. E. Stewart; with Plant Biology 102
2007-4-29
3
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of State Routes 20 and 16. Central part of ranch. Craig Canyon. South side of unimproved road.
335
Comment
CDA16110
Zeltnera trichantha
G. F. Hrusa, Dmitri Geltman (LE)
1999-8-18
15243
Colusa
North Coast Ranges; Along Leesville Rd., +/- 1 mi S of Lodoga.
320
Comment
UCD121476
Zeltnera trichantha
Vernon H. Oswald; Lowell Ahart
1998-7-15
9267 B
Colusa
Bartlett Springs Rd. 1.6 mi west of Bear Valley Rd.
487
Comment
UC1049538
Zigadenus
Rimo Bacigalupi
1950-4-16
3109
Colusa
Near Stony Creek Canyon entrance (vicinity of Colusa-Glenn County line); Inner North Coast Ranges, Mendocino National Forest.
Comment Read comments Jun 12 2012
CAS-BOT-BC530510
Zigadenus fremontii
Wayne Roderick
1967-5-7
s.n.
Colusa
In a hay field, Bear Valley near Leesville
304
Comment
CDA32831
Zigadenus fremontii
P. Hiatt
1979-4-26
Colusa
North end of Bear Valley at Bartlett Springs Road.
0
Comment
RSA296705
Zigadenus micranthus
Rick Lundquist
1979-4-14
17
Colusa
Unspecified.
1067
Comment
RSA589935
Zigadenus venenosus
Michael A. Vincent, Robert Rhode
1996-3-30
7306
Colusa
Along Walker Ridge Road, 0.5 mile south of the junction with Brim Road
Comment
SEINET3889535
Zigadenus venenosus
Steven Lagos
1974-5-4
42
Colusa
Wilbur Springs Quad. Along roadside.; 0
747
Comment