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Specimen ID
Determination *
Collector
Collection Date
Collection Number
County
Locality
Elevation in meters
Feedback
UC1543049
Abies magnifica var. shastensis
Donald G. Nelson et. al.
1940-6-8
691
Colusa
up to very summit Snow Mountain (w boundary of Colusa County,)
Comment
CDA25791
Abutilon theophrasti
G. K. Helmkamp, E. A. Helmkamp
2008-10-14
14263
Colusa
Sacramento Valley; Along River Road (generally following the Sacramento River), 8.4 miles north of Colusa.
Comment
UCR201545
Abutilon theophrasti
George K. Helmkamp, E. A. Helmkamp
2008-10-14
14263
Colusa
Sacramento Valley, along River Road (generally following the Sacramento River), 8.4 miles north of Colusa
17
Comment
UCD80834
Acer macrophyllum
Ellen Dean; G. Harrington, J. Alderson, M. Bibbo, B. Rice
2009-3-25
5291
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.
239
Comment
CHSC25965
Achillea millefolium
L. V. Ritter
1969-4-30
220
Colusa
Ca 10 mi sw of Williams, s side of Highway 20.
Comment
JEPS73474
Achillea millefolium
L. R. Heckard
1972-7-9
3083
Colusa
along trail from Frog Pond to Milk Ranch Frog Pond; Snow Mt. (southern range extension)
1950
Comment
UC1071729
Achillea millefolium
J. Clausen
1939-6-26
1743 -4
Colusa
17 mi w of, (just before entering Lake County) Williams
Comment
UCD82114
Achillea millefolium
Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth
2009-5-20
5642
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
JEPS75875
Achnatherum lemmonii
L. R. Heckard
1974-9-11
3946
Colusa
e of Foutch Camp; Snow Mt., Trout Creek
1889
Comment
UCD50713
Achnatherum lemmonii
Beecher Crampton
1958-5-19
4799
Colusa
5.8 miles south of Lodoga, Colusa County.
Comment
CHSC32199
Achnatherum occidentale subsp. californicum
James D. Jokerst
1980-8-8
1082
Colusa
North Coast Ranges. Near Snow Mountain (West).
2133
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
HSC92503
Achyrachaena mollis
S. Morrissette, J. Williams & K. Kopper
1994-4-24
24
Colusa
Bear Valley Rd., approx. 1.3 miles south of junction with Brimm Rd.
412
Comment
CAS-BOT-BC29876
Achyrachaena mollis
B. G. Baldwin
1986-4-13
598
Colusa
Bear Valley, 7.3 miles north of junction with California State Highway 20 along Bear Valley Road
Comment
CHSC79733
Acmispon brachycarpus
L. P. Janeway; B. Castro
2000-5-3
6699
Colusa
Vicinity of Antelope Creek and Grapevine Creek.
426
Comment
UCD163235
Acmispon brachycarpus
Craig D. Thomsen
2000-4-28
2250
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
CHSC101628
Acmispon denticulatus
David W. Isle; Teal Richards
2002-4-18
1653
Colusa
Mendocino National Forest; N of Fouts Springs, S of Chlorinator Building on road to Bathhouse Trail (Snow Mtn.) SE aspect drainage in chamise chamassal site burned during 8/8/01 Trough Fire. Teal Richards-DI Reveg Study Plot. MDB and M.
524
Comment
UCD66677
Acmispon denticulatus
Craig D. Thomsen
2000-5-11
2290
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
UCD66709
Acmispon denticulatus
Craig D. Thomsen
2001-5-24
2509
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
UCD146600
Acmispon grandiflorus
G. F. Hrusa
1998-6-19
14638
Colusa
North Coast Ranges. Below Fouts Springs on Fouts Springs Road to Stonyford. Immediately below Candy Bucket Spring crossing.
675
Comment
SEINET957367
Acmispon grandiflorus
L. R. Heckard
1969-1
2240
Colusa
On 14960 burn. Along Trough Spring Ridge road, 0.2 mile north of its junction with Crackerbox Ridge road (about 6-1/2 air miles southeast of Stonyford).
1128
Comment
CHSC52808
Acmispon grandiflorus var. grandiflorus
L. R. Heckard
1969-5-28
2233
Colusa
On road above and west of Fouts Springs.
762
Comment
UCD104192
Acmispon grandiflorus var. grandiflorus
L. R. Heckard
1969-5-29
2240
Colusa
Along Trough Spring Ridge road, 0.2 mile north of its junction with Crackerbox Ridge road (about 6 1/2 air miles southeast of Stonyford).
1127
Comment
SEINET8043935
Acmispon rubriflorus
A. Howald
2003-1
2354
Colusa
Inner North Coast Ranges: Indian Valley, East Park Reservoir, Catholic Point peninsula, Coppermine Road c. 1.2 miles north of intersection with Ruby King Rd., then c. 0.1 mile east on ranch road.
397
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
UCR261742
Acmispon rubriflorus
Ann Howald
2003-6-9
2368
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
UCR261743
Acmispon rubriflorus
Ann Howald
2003-6-9
2365
Colusa
Inner North Coast Ranges, Indian Valley, east side of East Park Reservoir, c. 3 miles north of Lodoga, at Sleepy Hollow camping area
378
Comment
UCR261745
Acmispon rubriflorus
Ann Howald
2003-6-9
2362 A
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
CHSC112313
Acmispon wrangelianus
Lowell Ahart
2013-5-1
18697
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
UCD163704
Acmispon wrangelianus
Craig Thomsen
1999-5-10
2016
Colusa
Bear Valley. About 9 miles north of Hwy 20.
Comment
HSC97663
Acmispon wrangelianus
J. Marshall, J. Savage, L. Allison
1997-3-30
11
Colusa
Mt. Diablo Meridian, 1.6 mi. E of Brim Rd., Walker Ridge intersection.
457
Comment
JEPS75833
Aconitum columbianum
L. R. Heckard
1974-9-11
3943
Colusa
s.e. Foutch Camp (just e. of large rocky outcroppings, Snow Mt.); Snow Mt.
1859
Comment
CAS-BOT-BC29713
Acroptilon repens
F. L. Shanks
1931-10-1
s.n.
Colusa
Mills Orchard, near Maxwell
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
JEPS44792
Adenostoma fasciculatum
Alice King
June 1906
Colusa
College City
Comment
UC71996
Adenostoma fasciculatum
Miss M. Alice King
1905-1
Colusa
near College City; Sacramento Valley
Comment
UCD13213
Adenostoma fasciculatum
Charles Martin
1986-5-17
27
Colusa
Along Sites-Lodoga Road, ca. 8.2 miles W of Sites, on roadside.
Comment
UCD56913
Adiantum jordanii
Ellen Dean; Gordon Harrington and Kate Mawdsley
2007-3-30
3516
Colusa
BLM Payne Ranch. Southwest of intersection of Hwy. 16 and Hwy. 20. In Craig Canyon.
318
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
CDA4021
Aeschynomene rudis
June McCaskill, J. Hill
1990-8-27
s.n.
Colusa
Near Princeton.
0
Comment
CDA4028
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
CDA4030
Aeschynomene rudis
G. D. Barbe, June McCaskill
1990-9-5
4397
Colusa
West side of Boggs Road between Dodge and Fonseca Roads; 5.6 km southwest of Princeton.
0
Comment
UCD104591
Aeschynomene rudis
June McCaskill; G. D. Barbe
1990-9-5
4397
Colusa
West side of Boggs Road Between Dodge and Fonseca roads; 5.6 km southwest of Princeton.
Comment
HSC59124
Aesculus californica
Terry Roth
1979-5-7
40
Colusa
Where Hwy. 20 enters Salt Canyon along Salt Creek
122
Comment
JEPS80777
Agastache urticifolia
L. R. Heckard and J. C. Hickman
1981-7-30
5750
Colusa
Trout Creek trail se side Snow Mt.; se side of Snow Mt.
1615
Comment
CHSC56745
Agoseris heterophylla
Ginger S. Gough
1989-4-1
7
Colusa
Ca. 0.48km W of jct of Hwys 20 and 16, S side of Bear Creek, ca. 29km SW of Williams.
322
Comment
CHSC78591
Agoseris heterophylla
J. Marr; H. West, C. Warren, J. Lacey-Rickert, N. Wight
1998-4-14
Colusa
Vicinity of Antelope Valley.
121
Comment
CHSC79649
Agoseris heterophylla
L. P. Janeway; B. Castro
2000-5-2
6690
Colusa
Vicinity of Grapevine Creek and Sites-Lodoga Road.
225
Comment
HSC72163
Agoseris heterophylla
J. P. Smith, Thomas W. Nelson, Jane P. Nelson
1978-4-2
9538
Colusa
Bear Valley Rd., 1.3 mi. from its junction with Hwy. 20
366
Comment
UCD56897
Agoseris heterophylla
Ellen Dean; Gordon Harrington and Kate Mawdsley
2007-3-30
3500
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
UCD57283
Agoseris heterophylla
Ellen Dean; C. Thomsen, S. Bledsoe, J. Alderson, M. Starbuck
2007-4-7
3651
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
UCD64502
Agoseris heterophylla
Craig D. Thomsen
2000-3-31
2092
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
UCD66469
Agoseris heterophylla
Craig D. Thomsen
2001-4-12
2459
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
UCD82475
Agoseris heterophylla
Craig Thomsen; G. Harrington
2009-5-12
2853
Colusa
Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd.
707
Comment
UCD82508
Agoseris heterophylla
Craig Thomsen; G. Harrington
2009-5-12
2867 a
Colusa
Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd.
710
Comment
OBI49665
Agoseris heterophylla var. cryptopleura
A. Liston, M. Blumler
1987-4-26
667 -2
Colusa
Bear Valley, Lodoga Rd, 6.6 mi 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
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
JEPS110433
Agrostis exarata
Lowell Ahart
2006-8-9
13167
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford
347
Comment
CHSC94280
Agrostis viridis
Lowell Ahart
2006-8-9
13111
Colusa
Gravel bar on the south side of Stony Creek, at Mine Camp, about 3 1/2 miles (air) west of Stonyford.
455
Comment
JEPS110386
Agrostis viridis
Lowell Ahart
2006-8-9
13159
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford
347
Comment
UCD162995
Aira caryophyllea
Craig D. Thomsen
2000-4-12
2169
Colusa
Bear Creek Botanical Management Area. Roadside shoulder of Hwy 20 (south side), about 0.5 mile west of Hwy 20/16 intersection.
345
Comment
UCD66472
Aira caryophyllea
Craig D. Thomsen
2001-4-24
2476
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
UCR227338
Aira caryophyllea
Craig D. Thomsen
2001-4-24
2476
Colusa
Bear Creek Botanical Management Area. Caltrans right-of-way, south side of Hwy 20, c. 0.25 mi west of Hwy 20/16 intersection, near Colusa Co. milepost 3.0
310
Comment
SEINET3917542
Aira caryophyllea
Donald Spalinger
1974-5-4
47
Colusa
St. John Mt. quad. North fork Campground on Stony Creek. 1600.; 0
Comment
CAS-BOT-BC445318
Alisma lanceolatum
Milo S. Baker
1946-9-5
11631
Colusa
Along Hiwy. bet. Colusa and Williams
Comment
UC985656
Alisma plantago-aquatica
Malcolm A. Nobs and S. Galen Smith
1949-9-9
1873
Colusa
3 mi w Williams
Comment
UCD137979
Alisma triviale
June McCaskill; W. A. Harvey
1954-8-9
360
Colusa
2 miles east of Princeton and 300 yards south of Glenn County line.
Comment
CAS-BOT-BC459583
Allium amplectens
Katherine Esau
1934-5-5
s.n.
Colusa
Wilbur Springs Quad., Near Rail Canyon
Comment
CHSC84321
Allium amplectens
Lowell Ahart
2003-7-14
10380
Colusa
Along a small drainage, 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
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
UCD163212
Allium amplectens
Craig D. Thomsen
2000-4-28
2198
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
UCD66451
Allium amplectens
Craig D. Thomsen
2000-5-11
2297
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
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
UC1561213
Allium bolanderi
Barbara Ertter
1989-7-1
8619
Colusa
road to Goat Mt. Lookout 0.4 mi s Rt. M-10 (Bear Creek-Fouts Spring Rd.) (at head of S Fk. Stony Creek, ca. 12 air mi wsw of Stonyford); S. Fk. Stony Creek
1371
Comment
CHSC70819
Allium falcifolium
B. Castro; D. Isle, L. Hanson, B. Corbin, E. Earl, L. Janeway
1995-4-28
565
Colusa
On Walker Ridge just W of Walker Ridge Rd, ca 0.5 mi S of jcn of Walker Ridge Rd and Bartlett Springs Rd, ca 300 ft E of Lake Co. line.
716
Comment
JEPS15563
Allium falcifolium
G. Thomas Robbins with L. R. Heckard
1956-7-25
3717
Colusa
slope above Dark Hollow Creek (a tributary of Middle Fork Stony Creek) (on s flank of Snow Mt. at lower end of cirque between Snow Mt. West and Snow Mt. East); Snow Mt.
1981
Comment
UC1613362
Allium falcifolium
Charles M. Belshaw
April 1937
2865
Colusa
vicinity of Cook's Spring (Devil's Ridge); Inner N. Coast Range, Devil's Ridge
Comment
HSC42373
Allium falcifolium
Dale McNeal
1975-5-3
1595
Colusa
Above Hwy. 20, 1.0 mi. W of junction with Hwy. 16
Comment
POM174570
Allium falcifolium
Roxana S. Ferris
1926-4-23
6570
Colusa
Dry Creek near Stonyford.
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
UCD141855
Allium falcifolium
Roman Gankin
1958-4-25
s.n.
Colusa
4 miles west of Leesville. Near head of Bear Valley.
304
Comment
UCD141787
Allium fimbriatum
M. Yamaguchi; D. Hughes, D. G. Hunt
1965-4-29
s.n.
Colusa
Bear Valley Road (sign to Wilbur Springs) past fenced area after leaving junction of California 16 and 20.
Comment
CAS-BOT-BC135885
Allium fimbriatum subsp. purdyi
A. A. Heller
1940-5-6
15579
Colusa
Summit of the grade on State Highway #20, at the Lake County line.
232
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-BC135888
Allium fimbriatum subsp. purdyi
David D. Keck
1933-5-30
2398
Colusa
Colusa-Lake County line west of Wilbur Springs.
Comment
CAS-BOT-BC135890
Allium fimbriatum subsp. purdyi
David D. Keck
1933-5-30
2398
Colusa
Colusa-Lake County line west of Wilbur Springs.
Comment
HSC48164
Allium fimbriatum var. purdyi
Thomas W. Nelson, Jane P. Nelson
1978-4-29
3928
Colusa
Along Bear Valley Rd., 2 mi. from the junction with State Route 20.
366
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
POM215800
Allium fimbriatum var. purdyi
David D. Keck
1933-5-30
2398
Colusa
Colusa/Lake Co. Line west of Wilbur Springs
Comment
RSA32757
Allium fimbriatum var. purdyi
A. A. Heller
1940-5-6
s.n.
Colusa
Summit of the grade on Hwy 20, at the Lake Co. line
232
Comment
UCD141789
Allium fimbriatum var. purdyi
L. K. Mann
1958-5-3
s.n.
Colusa
Colusa - Lake County: California Highway #20 at county line.
Comment
UCD141858
Allium fimbriatum var. purdyi
L. K. Mann
1958-5-3
s.n.
Colusa
California Highway #20 at Lake County - Colusa County Line.
Comment
UCD57301
Allium fimbriatum var. purdyi
Ellen Dean; C. Thomsen, S. Bledsoe, J. Alderson, M. Starbuck
2007-4-7
3672
Colusa
BLM Payne Ranch. Lands to the southwest of junction of Hwy. 20 and Hwy. 16. Thompson Canyon, near juncture with Craig Canyon. Above Thompson Creek.
366
Comment
UCR198144
Allium fimbriatum var. purdyi
Ellen Dean, C. Thomsen, S. Bledsoe, J. Alderson, M. Starbuck
2007-4-7
3672
Colusa
BLM Payne Ranch, lands to the southwest of junction of Hwy 20 and Hwy 16. Thomposon Canyon, near juncture with Craig Canyon, above Thompson Creek
366
Comment
SEINET3884502
Allium fimbriatum var. purdyi
D. W. McNeal
1980-4-26
2318
Colusa
On an open slope above Bear Valley Rd., 1.4 mi. n. of its jct. with Hwy #20.; 0
Comment
SEINET194974
Allium purdyi
A. A. Heller
1940-5-6
15579
Colusa
Summit of the grade on State Highway # 20 , at the Lake County line,
232
Comment
CDA11415
Allium serra
G. F. Hrusa, K. van Katwyk
1995-4-22
12136
Colusa
Inner North Coast Ranges; S side of Leesville Rd. approx. 3 m. N of Hwy 20.
Comment
CHSC42240
Allium serra
Curtis Williges
1986-4-5
20
Colusa
Hwy 20, 3 mi e of jct Hwy 16.
335
Comment
CHSC71010
Allium serra
Vernon Oswald; Lowell Ahart
1998-5-7
8992
Colusa
Lodoga-Leesville Rd. 4.3 mi south of Cooks Springs Rd.
469
Comment
CHSC77625
Allium serra
Heidi West; Jenny Marr, Julie Cunningham
1998-4-15
Colusa
Vicinity of Grapevine creek and Sites-Lodoga Road.
146
Comment
UC630432
Allium serra
Annetta Carter
1938-5-7
1373
Colusa
4 mi n Rumsey; Inner North Coast Range, Comanche Hills
243
Comment
UC766754
Allium serra
R. F. Hoover
1938-4-24
3216
Colusa
w Arbuckle; Sand Creek foothills
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
JEPS72
Allophyllum gilioides subsp. gilioides
W. L. Jepson
1932-5-7
16271
Colusa
Lodoga; ; Lodoga, Colusa Co.
518
Comment
CHSC62939
Allophyllum gilioides subsp. violaceum
Vernon H. Oswald; Lowell Ahart
1994-4-6
6060
Colusa
Goat Mtn. Rd. at Sullivan Creek, 1.2 mi SW of Digger Pine Flat, S of Stonyford. On slopes bordering Sullivan Creek.
469
Comment
CHSC88518
Allophyllum gilioides subsp. violaceum
B. Castro
2003-5-15
1438
Colusa
Vicinity of Logan Ridge, Sulphur Gap and Lurline Creek. On steep SE-facing slope in opening above dirt rd paralleling a S-trending canyon.
195
Comment
JEPS80795
Alnus incana subsp. tenuifolia
L. R. Heckard and J. C. Hickman
1981-7-30
5765
Colusa
Trout Creek Snow Mt. (se side of mt.)
Comment
CDA12377
Alnus rhombifolia
G. F. Hrusa
1996-1-2
12630
Colusa
Inner North Coast Ranges; Little Stony Creek, +/- 2 miles W of intersection of Cedar Camp Rd. and Stonyford-Lodoga Rd.
Comment
CHSC71667
Alopecurus saccatus
Michael A. Wolder
1998-5-12
Colusa
Sacramento National Wildlife Refuge Complex. Colusa National Wildlife Refuge south west of Colusa.
16
Comment
CHSC85730
Alopecurus saccatus
G. F. Hrusa; K. van Katwyk
1995-4-22
12142
Colusa
Inner North Coast Ranges. Along N side of Leesville Rd. approx. 4 m. NW of Hwy. 20.
290
Comment
CHSC101072
Ambrosia psilostachya
David W. Isle; Rhonda Isle
2007-9-9
1624
Colusa
Stonyford Park at NW edge of Indian VA Elementary School; about 100 yds SE of Co. Rd 306 Stony Creek Bridge; about 1/4 mile S of Glenn Co. line.
Comment
JEPS108783
Ambrosia psilostachya
Lowell Ahart
2006-9-26
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 1/2 miles east of Maxwell
24
Comment
JEPS89498
Ambrosia psilostachya
Dean W. Taylor
1989-8-6
10510
Colusa
s.w. margin Delevan Nat'l Wildlife Refuge; Sacramento Valley, Delevan Nat'l Wildlife Refuge
Comment
RSA718532
Ambrosia psilostachya
L. Ahart
2006-10-31
13518
Colusa
20 yards northeast of the bridge across Stony creek, just north of Stonyford.
348
Comment
RSA78613
Ammannia coccinea
J. T. Howell
1944-7-18
19837
Colusa
3 miles west of Williams.
30
Comment
CHSC94478
Ammannia robusta
Lowell Ahart
2006-8-9
13142
Colusa
North side and just east of the bridge across Stony Creek, just north of Stonyford.
347
Comment
JEPS110091
Ammannia robusta
Lowell Ahart
2006-8-9
13142
Colusa
North side and just east of the bridge across Stony Creek, just north of Stonyford
347
Comment
CHSC90043
Amsinckia intermedia
Craig Fleming
1991-4-6
13
Colusa
In Salt Canyon, n side of Salt Creek, Hwy 20, 11 mi wsw of Williams.
143
Comment
HSC31598
Amsinckia intermedia
Thomas E. Higley
1974-5-5
84
Colusa
0.5 mi. S of N Fork Campground
412
Comment
SBBG126065
Amsinckia lunaris
G. K. Helmkamp with E. A. Helmkamp
2009-3-11
14368
Colusa
St Hwy 20, 9.7 mi SW of Williams, on N side of Salt Crk
162
Comment
UC1093626
Amsinckia lunaris
Francia Chisaki, Gene B. Newcomb
1958-4-1
1097
Colusa
on road to Lodoga (0.7 mi nw of junction with Hwy 20)
Comment
UC762196
Amsinckia lunaris
R. F. Hoover
1938-4-23
3204
Colusa
grade on Rumsey-Arbuckle Road
Comment
UCD77237
Amsinckia lunaris
Robert E. Preston
2005-4-10
2330
Colusa
Ca. 0.9 mi ESE of Wilbur Springs, along Bear Valley Road.
373
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
RSA0089732
Amsinckia lunaris
B. Castro
2003-3-18
1384 -a
Colusa
Vicinity of Sites (Offstream Storage Investigation: Sites S. Bridge road route), hills N of the Sites-Lodoga Road, and Stone Corral Creek.
198
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
UCD160032
Amsinckia lycopsoides
Ellen Dean; Craig Thomsen
2015-4-21
8628
Colusa
Bear Creek Ranch (previously Payne Ranch) at intersection of highways 16 and 20. Area to the SE of Lynch Canyon on S side of undeveloped road and N of creek. Near western end of Thompson Canyon.
381
Comment
UCD67070
Amsinckia menziesii
Ellen Dean; G. Harrington, J. Alderson, E. Bayon, R. Willmarth
2008-6-8
5098
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
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
UC78236
Amsinckia tessellata var. gloriosa
K. Brandegee
May 1884
Colusa
Mountain House; North Coast Ranges
Comment Read comments Jun 20 2007
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
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
RSA256677
Ancistrocarphus filagineus
J. L. Hobson
1974-5-4
63
Colusa
0.75 mile from the junction to Indian Valley on Walker Ridge Road.
854
Comment
CHSC76775
Androsace elongata subsp. acuta
J. Marr; B. Hendrickson
1999-3-30
Colusa
About 11 air miles W of Willows, vicinity of Squaw Flat and Logan Creek.
152
Comment
CDA16107
Angelica tomentosa
G. F. Hrusa, Dmitri Geltman (LE)
1999-8-18
15246
Colusa
North Coast Ranges; Little Stony Creek, approx. 1.5 mi. NE of Stonyford-Lodoga Rd. intersection. Sheet 1 of 2
350
Comment
CAS-BOT-BC69129
Antennaria geyeri
G. Thomas Robbins; L. R. Heckard
1956-7-25
3722
Colusa
At summit of Snow Mt. West
2145
Comment
JEPS80201
Anthemis cotula
L. R. Heckard and J. Hickman
1980-7-3
5356
Colusa
around Summit Springs; Snow Mt. (sw flank)
1548
Comment
UCD163218
Anthemis cotula
Craig D. Thomsen
2000-5-11
2325
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
UCD66932
Anthemis cotula
Ellen Dean; G. Harrington, J. Alderson, E. Bayon, R. Willmarth
2008-6-8
5081
Colusa
BLM Payne Ranch. Lands to the SW of jct of Hwys 16 and 20. Northwestern part of ranch, along ridge trail on border of Lake and Colusa Counties. South of junction with trail that heads down to the headwaters of Thompson Creek.
633
Comment
CHSC101033
Anthriscus caucalis
John Dittes
2008-3-14
1514
Colusa
Great Central Valley; Sacramento Valley; between Butte Sink and Sacramento River, north of Sutter Buttes; ca. 1.6 air mile south of Gridley Road, ca. 1.1 air mile west of Drumheller Slough;
17
Comment
UCD163652
Antirrhinum cornutum
Craig Thomsen
1998-6-10
1950
Colusa
Bear Valley. About 7 miles north of Hwy 20.
Comment
CHSC94883
Antirrhinum subcordatum
Lowell Ahart
2006-6-11
12673
Colusa
On the west side of an off road trail (Trail 30), about 50 yards south of Fouts Road, about 5 miles (by road) west of Stonyford.
613
Comment
CHSC111700
Antirrhinum subcordatum
David Isle; F. Thomas Griggs
1979-5-23
2064
Colusa
Little Stony Creek Watershed. 1/5 mile W of Goat Mtn. Rd/Lodoga Rd. Jct. on N side of Goat Mtn. Rd. Near I-7 fire pre-attack triangular sign on T-post. (Just past Ruby King Mine and small eph. drainage that joins Little Stony Creek from N.
414
Comment
UCD66699
Antirrhinum vexillocalyculatum
Craig D. Thomsen
2000-6-23
2406
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, near Colusa Co. milepost 3.00.
310
Comment
UCD70222
Antirrhinum vexillocalyculatum
D. Sanchez-Mata
1998-7-9
s.n.
Colusa
Bear Valley. Bear Valley Road. Bear Valley Creek.
370
Comment
CHSC115753
Antirrhinum virga
David Isle
2015-6-20
2155
Colusa
10S -0533810E, 435732N . North Coast Range: 3.75 miles W of Stonyford and 100 yds S of road 8N01; S of Bob Angulo mobile home; on E edge of old 4x4 road/firebreak in chaparral.
427
Comment
UCD162982
Aphanes occidentalis
Craig D. Thomsen
2002-2-7
2569
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
UCD64506
Aphanes occidentalis
Craig D. Thomsen
2000-3-31
2093
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
CHSC62836
Apiastrum angustifolium
Vernon H. Oswald; Lowell Ahart
1994-3-23
6017
Colusa
Goat Mtn. Rd. just W of the bridge over Sullivan Creek, S of Stonyford.
505
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
UCD82387
Apiastrum angustifolium
Craig Thomsen; G. Harrington
2009-5-12
2830 b
Colusa
Colusa County. Walker Ridge. South of spur road en route to Eaton Springs, about 1/2 mile east of Walker Ridge Rd. About 200 yds south of road (ravine with spring below).
822
Comment
CHSC86964
Apocynum cannabinum
B. Castro; Michelle Cedarborg
2003-5-1
1426
Colusa
Vicinity of Logan Ridge, Sites Peak and Lurline Creek. By creek not far downstream of pond at creek headwaters
204
Comment
SEINET8731045
Apocynum cannabinum
Helen K. Sharsmith
1953-1
4263
Colusa
Raw serpentine, near confluence of North and Middle forks of Stoney Creek, Red Bride Camp, Mendocino National Forest
549
Comment
JEPS82549
Arabis glabra var. glabra
L. R. Heckard
1983-7-27
6110
Colusa
ca. 1/4 mi. w. Summit Springs (s. side Snow Mt.); Snow Mt.
1500
Comment
JEPS80780
Arceuthobium abietinum
L. R. Heckard and J. C. Hickman
1981-7-30
5753
Colusa
se side of Snow Mountain, Trout Creek Trout Creek; Snow Mountain, Trout Creek
1600
Comment
SEINET3239841
Arceuthobium occidentale
R. L. Mathiasen
2009-1
2009 -21
Colusa
3.2 km E of Summit County line at vista point on St. Rte. 20.
400
Comment
UCR225254B
Arceuthobium occidentale
Ellen Dean, Gordon Harrington, J. Anderson, E. Bayon, R. Willmarth
2008-6-8
5079
Colusa
BLM Payne Ranch, lands to the southwest of the junction of Hwys 16 and 20. 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
Comment
JEPS81346
Arctostaphylos
L. R. Heckard and J. C. Hickman
1982-7-6
5943
Colusa
about 1/2 mi ne Summit Springs (e of trail, s side of mt.); Snow Mt.
1645
Comment
SEINET11989661
Arctostaphylos canescens
R. A. DeMartile
1982-1
s.n.
Colusa
10 mi from Ladoga on road between Ladoga & Goat Mountain lookout
701
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
UC1051740
Arctostaphylos canescens subsp. canescens
Helen K. Sharsmith
1953-6-20
4296
Colusa
n slope Goat Mountain; Inner North Coast Ranges, Mendocino National Forest
1828
Comment
JEPS117095
Arctostaphylos canescens subsp. sonomensis
Peter Warner
2010-5-16
153
Colusa
Walker Ridge Road, ~18.4 km N of jct. with Hwy. 20, along E (Colusa Co.) side of road, scattered on slopes above Zimory Canyon to the west, Trout Creek to east, and adjacent slopes on both sides of road
Comment
UCD66956
Arctostaphylos canescens subsp. sonomensis
Ellen Dean; Davis Botanical Society
2008-5-31
5000
Colusa
west of I-5 at Maxwell, east slope of Goat Mountain, along Goat Mountain Road.
822
Comment
CAS-BOT-BC38981
Arctostaphylos malloryi
P. C. Everett; E. K. Balls
1954-10-17
20335
Colusa
2 mi. SW of Trough Springs on road to Upper Lake from Stonyford
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
SDSU1508
Arctostaphylos manzanita
D. F. Howe
1962-5-19
3285
Colusa
11 miles west of Willams on #20.
152
Comment
UCD67000
Arctostaphylos manzanita
Craig D. Thomsen; Gordon Harrington
2008-7-6
2781 -c
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
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
IRVC29624
Arctostaphylos nevadensis
Mark A. Elvin, Mark S. Brunell, David Isle
2006-8-3
5022
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
JEPS80051
Arctostaphylos nevadensis
L. R. Heckard with J. Hickman
1979-6-15
5051
Colusa
east trail from Frog Pond to cirque of east and west peaks (ne slope of West Peak ridge); Snow Mt.
1981
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
UCD52647
Arctostaphylos viscida
Roman Gankin
1958-4-26
292
Colusa
In Leesville-Bartlett Springs road, ca. 2 miles west of junction of this road and Leesville-Wilbur Springs road, near Colusa-Lake County line, California.
Comment
UCD66999
Arctostaphylos viscida
Craig D. Thomsen; Gordon Harrington
2008-7-6
2781 -a
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
HSC62937
Arctostaphylos viscida
Michael Dalke
1979-4-14
45 .5
Colusa
1067
Comment
SBBG118100
Arctostaphylos viscida subsp. pulchella
C. Bornstein, E. Collins, R. Lutsko
2004-6-18
Colusa
Bartlett Springs Rd, ca. 1.3 mi E of jct with Bear Valley Rd
432
Comment
UCD56680
Arctostaphylos viscida subsp. pulchella
Jack Alderson
2007-3-25
s.n.
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
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
SEINET5731548
Arctostaphylos viscida subsp. pulchella
Bruce Hartsough
1973-1
17
Colusa
7 mi. N of Hwy 20 on Walker Ridge Rd.
853
Comment
SBBG50847
Arctostaphylos viscida subsp. viscida
S. C. Schank
1960-4-10
51
Colusa
above Cache Crk, 2 mi NW of jct of Hwy 16 and Hwy 20 on rd to Bear Valley
Comment
POM367485
Arctostaphylos viscida subsp. viscida
Phyllis Krieg
1979-4-14
s.n.
Colusa
[Unspecified]
1067
Comment
UCD82129
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
UCD95197
Argemone munita
K. Esau
1934-5-5
s.n.
Colusa
above Williams, Tahoe-Ukiah Highway.
Comment
SEINET3296895
Argemone platyceras var. hispida
L. Constance
1939-5-14
2490
Colusa
1 mile east of Mill Creek Ranger Station, Inner North Coast Ranges.
549
Comment
UCD56862
Aristida ternipes var. gentilis
Beecher Crampton
1958-5-19
4789
Colusa
10.7 miles southeast of Leesville.
Comment
CAS-BOT-BC400400
Aristolochia californica
Roxana S. Ferris
1917-4-15
615
Colusa
Sycamore Slough
Comment
UCD146598
Arnica discoidea
G. F. Hrusa
1998-6-19
14615
Colusa
North Coast Ranges. USFS Pacific Ridge Road, 4-5 km northwest of intersecion with Colus County Goat Mountain Road.
1200
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
CHSC32203
Asclepias fascicularis
James Jokerst
1980-8-7
1072
Colusa
North Coast Ranges. Near Snow Mountain (east).
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
HSC72214
Asclepias solanoana
Thomas W. Nelson, Jane P. Nelson
1980-6-24
5876
Colusa
Along road to Snow Mtn. trail head at Summit Springs
1585
Comment
CHSC62834
Aspidotis densa
Vernon H. Oswald; Lowell Ahart
1994-3-23
6014
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
UC1049537
Astragalus breweri
Rimo Bacigalupi
1950-4-16
3112
Colusa
four mi s Ladoga (6 mi nnw of Leesville, in Indian Valley (not the one in Lake County) along Little Indian Creek, eastern base of Inner North Coast Ranges); eastern base Inner North Coast Ranges, Little Indian Creek
396
Comment
UCD163230
Astragalus clevelandii
Craig D. Thomsen
2001-5-24
2535
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
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
UCD104819
Astragalus gambelianus
J. M. Tucker
1958-3-7
3363
Colusa
State Highway 16, Cache Creek Canyon, 0.1 mile north of Yolo-Colusa County line.
Comment
CAS-BOT-BC193115
Astragalus rattanii var. jepsonianus
Alice Eastwood; John Thomas Howell
1938-5-16
5634
Colusa
Lake - Colusa Co. line on road to Williams
Comment
CHSC112270
Astragalus rattanii var. jepsonianus
Lowell Ahart; John Dittes, Josephine Guardino
2013-4-26
18634
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
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
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
UCD105309
Astragalus rattanii var. jepsonianus
J. M. Tucker
1978-5-6
4406
Colusa
On east side of Bear Valley Road, flat valley floor of Bear Valley. 10.6 miles (by road) north of junction with State Highway 20.
365
Comment
UCD163326
Astragalus rattanii var. jepsonianus
Craig D. Thomsen
2009-5-3
2791
Colusa
Walker Ridge. Vicinity of Walker Ridge Rd., 0.25 miles north of Hwy 20.
Comment
UCD169731
Astragalus rattanii var. jepsonianus
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 Hwys. 20 and 53.
558
Comment
UCD56917
Astragalus rattanii var. jepsonianus
Ellen Dean; Gordon Harrington and Kate Mawdsley
2007-3-30
3520
Colusa
BLM Payne Ranch. Southwest of intersection of Hwy. 16 and Hwy. 20. In Craig Canyon.
334
Comment
UCD63037
Astragalus rattanii var. jepsonianus
Ellen Dean; Marjorie Phan and Gerald Dickinson
2008-4-27
4883
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwys 20 and 16. Along unnamed tributary of Bear Creek.
322
Comment
UCD63923
Astragalus rattanii var. jepsonianus
Craig D. Thomsen
2002-2-27
2576
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
SEINET4680474
Astragalus rattanii var. jepsonianus
D. W. McNeal
1988-3-31
3237
Colusa
On a hillside above Bear Valley Rd., 0.6 mi NW of Hwy #20.; 0
Comment
RSA0003126
Astragalus tener var. ferrisiae
Roxana S. Ferris
1926-4-21
6281
Colusa
3 mi W of Colusa..
Comment
JEPS80461
Athyrium filix-femina var. cyclosorum
Alice Q. Howard
1972-7-10
Colusa
trail from Fouts Camp to Box Springs (n side of ridge seaprating Trout and Paradise Creeks); Snow Mt
1676
Comment
JEPS53214
Athysanus pusillus
W. L. Jepson
16277
Colusa
Lodoga, in Coast Range foothills, w Colusa County Lodoga; Coast Range foothills, Lodoga
457
Comment
CAS-BOT-BC17403
Athysanus pusillus
Volney Rattan
1884-1-1
s.n.
Colusa
Unspecified.
Comment
CAS-BOT-BC170615
Atriplex argentea
Roxana Stinchfield
1916-7-1
462
Colusa
Colusa - Williams Road, at bridge over the Trough
Comment
UCD21581
Atriplex argentea var. expansa
Craig D. Thomsen
2002-11-14
s.n.
Colusa
BLM Payne Ranch. Along Hwy 20 about a quarter mile west of Hwy 16. Steep eroding slope. Serpentine derived soil.
Comment
UC1609126
Atriplex coronata
Vernon H. Oswald, Mike Wolder and Joe Silveira
1993-7-26
5701
Colusa
ca 5 mi s Colusa (ca 1 mi n of Ware Rd., ca 1 mi w of Ohm Rd., Tract 18 on the s side of the Colusa National Wildlife Refuge); s side Colusa National Wildlife Refuge, s of Colusa
15
Comment
CHSC107968
Atriplex depressa
B. Castro; Amy Lyons
2011-8-3
1900
Colusa
Sacramento Valley. Extreme west edge of Sacramento Valley; approximately I mi southeast of Funks Reservoir and 800 ft northeast of Tehama-Colusa Canal. At SW end of N-trending swale, off northwest corner of large +- alkaline marsh.
49
Comment
CHSC107934
Atriplex fruticulosa
B. Castro; L. Janeway
2011-7-9
1895
Colusa
Sacramento Valley. Extreme west edge of Sacramento Valley; approximately 1 mi southeast of Funks Reservoir and 0.2 mi northeast of Tehama-Colusa Canal. In swale about 300 ft north of large +- alkaline marsh. At edge of swale near star-thistle thicket.
49
Comment
CHSC79494
Atriplex fruticulosa
L. P. Janeway; B. Castro
2000-3-23
6637 A
Colusa
Vicinity of Funks Creek and Glenn-Colusa Canal.
47
Comment
CHSC80184
Atriplex joaquinana
B. Castro; G. Kuenster
2000-7-19
1210
Colusa
Vicinity of Maxwell, Funks Creek, and the Glenn-Colusa canal, on low terrace beside S edge of shallow ephmeral stream channel draining eastward out of the hills east of Golden Gate.
54
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
UC205343
Atriplex persistens
H. M. Hall
1920-7-12
11012
Colusa
w Princeton; w of Princeton
Comment
JEPS108753
Atriplex prostrata
Lowell Ahart
2006-9-26
13347
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
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
UC217003
Atriplex serenana var. serenana
H. M. Hall
1920-7-12
11011
Colusa
5 mi e Maxwell; e of Maxwell
Comment
UCD82112
Avena fatua
Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth
2009-5-20
5640
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
CHSC96926
Azolla filiculoides
Lowell Ahart
2007-7-7
14260
Colusa
On north side of the Gridley Colusa Highway, about 1 1/4 miles east of River Road, about 17 miles west of Gridley.
20
Comment
RSA726847
Azolla filiculoides
Lowell A. Ahart
2007-7-7
14260
Colusa
About 1.25 miles east of River Road, about 17 miles west of Gridley.
20
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
CHSC98782
Baccharis salicifolia
Richard R. Halse
2007-3-25
7134
Colusa
Along State Hwy. 20 ca. 7.8 miles northeast of its junction with State Hwy. 16, at base of Salt Canyon. Along Salt Creek.
100
Comment
HSC79084
Baccharis salicifolia
C. G. Phillips, L. Cole, S. A. Haultain, K. B. Barrows
1984-4-29
30
Colusa
Mendocino National Forest, Digger Pine Campground, 10 miles SW of Stonyford via Lodoga-Stonyford and Goat Mtn. Rd.
457
Comment
RSA730229
Baccharis salicifolia
R. R. Halse
2007-3-25
7134
Colusa
Along State Hwy. 20 ca. 7.8 miles northeast of its junction with State Hwy. 16, at base of Salt Canyon.
100
Comment
CAS-BOT-BC100066
Balsamorhiza macrolepis
James Jokerst
1985-4-5
2210
Colusa
Wilbur Springs Quad. Near Coyote Peak
456
Comment
CAS-BOT-BC100068
Balsamorhiza macrolepis
G. L. Stebbins
1971-6-6
8016
Colusa
Walker Ridge, 1/4 mi. south of road from Leesville to Indian Valley
701
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
UCD82618
Balsamorhiza macrolepis var. macrolepis
Craig Thomsen; G. Harrington
2009-5-12
2887
Colusa
Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. Southeast side of Eaton Springs complex.
710
Comment
UC1191425
Bassia hyssopifolia
Herbert L. Mason
1946-8-6
12958
Colusa
pond on Colusa-Marysville Highway four mi s Colusa (w side of Sacramento River); w side of Sacramento River
Comment
CHSC85963
Bellardia trixago
Jenny Marr; Heidi West, Joyce Lacey-Rickert, Caroline Warren
1998-5-8
Colusa
Vicinity of Sites and Antelope Valley.
137
Comment
UC1563953
Bergia texana
Barbara Ertter, Elizabeth Neese, Laura Fujii, Dawn Espindola
1989-10-21
8869
Colusa
SE end of East park Reservoir N of Lodoga
Comment
JEPS108781
Bidens frondosa
Lowell Ahart
2006-9-26
13344
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
Comment
RSA724819
Bidens frondosa
L. Ahart
2006-9-26
13344
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
CAS-BOT-BC100260
Blennosperma nanum var. nanum
Roxana S. Ferris
1917-4-12
498
Colusa
4 miles East of Williams
Comment
JEPS73458
Boechera platysperma
L. R. Heckard
1972-7-8
3062
Colusa
saddle between East Peak and West Peak; Snow Mt.
1981
Comment
JEPS80111
Boechera platysperma
L. R. Heckard with J. Hickman
1980-7-1
5270
Colusa
ca 10 mi w Stonyford (cirque between West and East Peaks; Colusa-Lake County line); Snow Mt.
1950
Comment
JEPS15548
Boechera repanda
G. Thomas Robbins with L. R. Heckard
1956-7-25
3705
Colusa
along trail due s Snow Mt. East (and skirting the e base of the ridge forming Snow Mt. West); Snow Mt. West
1981
Comment
CHSC117122
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
RSA0105548
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
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
CHSC82037
Bolboschoenus glaucus
L. P. Janeway
2001-6-13
7172
Colusa
Sacramento Valley. Along Norman Road 5.0 km east of Hwy 99W and Hwy I-5.
23
Comment
CAS-BOT-BC75491
Bolboschoenus glaucus
B. Crampton
1953-4-29
1149
Colusa
4 miles east of Norman.
Comment
UCD67058
Bolboschoenus maritimus subsp. paludosus
Craig D. Thomsen
2008-5-23
2755
Colusa
BLM Payne Ranch. Destanella Flat, just south of Hwy 20, 2.5 miles west of Hwy 16.
522
Comment
UCD140026
Bolboschoenus maritimus subsp. paludosus
P. B. Kennedy
30-31 May 1922
s.n.
Colusa
Near Cortina.
Comment
CAS-BOT-BC418409
Boykinia occidentalis
Volney Rattan
1877-6-26
s.n.
Colusa
Sulphur Creek
Comment
UCD61436
Brassica nigra
Ellen Dean; G. Harrington, N. Voegtly, J. Alderson, C. Thomsen
2007-6-24
3881
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
UCR206539
Brassica rapa
George K. Helmkamp, E. A. Helmkamp
2009-1-31
14313
Colusa
Sacramento Valley, junction of Moon Bend Road and CA-20 at the south end of the city of Colusa
23
Comment
CAS-BOT-BC106348
Brickellia californica
A. J. Bassinger
1927-10-29
s.n.
Colusa
Sand Creek, Coast Range
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
UCD55472
Brickellia californica
Ellen Dean; Gordon Harrington
2006-10-6
3296
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
CHSC32208
Brickellia greenei
James Jokerst
1980-8-7
1066
Colusa
North Coast Ranges. Near Snow Mountain (West).
Comment
IRVC29684
Brickellia greenei
Mark A. Elvin, Mark S. Brunell, David Isle
2006-8-3
5034
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
JEPS75869
Brickellia greenei
L. R. Heckard
1974-9-10
3879
Colusa
along e trail, se of saddle between peaks Circle Trail
2011
Comment
UCR206363
Brodiaea elegans
George K. Helmkamp, E. A. Helmkamp
2009-5-20
14747
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
CHSC89838
Brodiaea elegans subsp. elegans
B. Castro; L. Janeway
2001-5-10
1248 A
Colusa
Vicinity of Grapevine Creek, Antelope Creek, and Pence Mtn. Near dirt road paralleling N-S-trending perennial creek, just down from the blue oak-grassland edge.
396
Comment
JEPS7632
Brodiaea elegans subsp. elegans
W. L. Jepson
1920-5-23
8961
Colusa
foothills near Mountain House (sw Colusa Co.); Venado
Comment
CAS-BOT-BC482891
Brodiaea elegans subsp. elegans
Roxana Stinchfield
1916-6-18
300
Colusa
near College City
Comment
CHSC112309
Bromus arenarius
Lowell Ahart
2013-5-1
18685
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 mile (air) east-northeast of Clear Lake (town), 17.1 miles (air) west of Williams.
566
Comment
RSA724892
Bromus arenarius
L. 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
SBBG115860
Bromus arenarius
B. Crampton
1958-5-19
4793
Colusa
ca. 10.1 mi SE of Leesville, E of foothills known as Three Sisters
Comment
UCD57609
Bromus arenarius
Beecher Crampton
1958-5-19
4802
Colusa
5.8 miles south of Lodoga.
Comment
CHSC117405
Bromus catharticus
B. Castro; Tom Boullion
2008-7-10
1765
Colusa
Sacramento Valley. Ca 3 air mi SE of Colusa, on W bank of the Sacramento River near Moon Bend Rd. at RM 141.4, just off Moon Bend Rd.
18
Comment
UCD83625
Bromus diandrus
Adam Clause; with PLB 102 class
2010-5-2
4
Colusa
Walker Ridge. Eaton Springs. 20 meters south of the main road, on the flat valley floor.
709
Comment
UCD58684
Bromus hordeaceus
A. A. Beetle
1942-5-21
3272
Colusa
12 miles north of Williams.
Comment
UCD58711
Bromus hordeaceus
Beecher Crampton
1962-4-17
6222
Colusa
3.3 miles north of College City.
Comment
CHSC71012
Bromus laevipes
Vernon Oswald; Lowell Ahart
1998-5-7
8997
Colusa
On a roadside bank.
487
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
UCD58941
Bromus laevipes
R. Tofsrud
1948-7-1
s.n.
Colusa
Colusa Co.
Comment
UCD81225
Bromus madritensis subsp. madritensis
Ellen Dean; K. Mawdsley, B. Rice, G. Harrington, and J. Alderson
2009-5-6
5562
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
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
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
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
RSA724142
Bromus rubens
R. R. Halse
2002-3-21
6130
Colusa
Williams; by junction of 5th Street and B Street.
24
Comment
SEINET3923568
Bromus tectorum
S. Bowie, J. Lopez; D. Riess
1994-4-23
0172
Colusa
Leesville Quadrangle, Walker Ridge (BLM property). Collected along Bear Valley Road in Bear Valley, approx. 2.1 km south of intersection with Brimm Road.; 0
663
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
RSA141301
Cacaliopsis nardosmia
J. M. Tucker, John Tothill
1959-5-30
3527
Colusa
Road between Goat Mountain Lookout and Upper Letts Valley (ca. 2.5 miles, airline, north of the lookout), Goat Mountain.
1448
Comment
UC1183418
Cacaliopsis nardosmia
J. M. Tucker and John Tothill
1959-5-30
3527
Colusa
Road between Goat Mountain Lookout, Goat Mountain and upper Letts Valley (ca. 2.5 mi air n of lookout)
Comment
UCD129652
Cacaliopsis nardosmia
J. M. Tucker
1959-5-30
3519
Colusa
Trough Spring, at northeast end of Trough Spring Ridge, ca. 5.75 miles (airline) southwest of Stonyford.
975
Comment
HSC72159
Calandrinia ciliata
J. P. Smith, Thomas W. Nelson, Jane P. Nelson
1978-4-2
9534
Colusa
Bear Valley Rd., 1.3 mi. from its junction with Hwy. 20
366
Comment
UCR73129
Calandrinia ciliata
Mark Hershkovitz
1991-5-3
s.n.
Colusa
Bear Valley, along Bear Valley Rd. Near fenceline in central region of valley
Comment
HSC47509
Calandrinia ciliata
Sheila Logan
1978-4-21
51
Colusa
N of Bear Valley Rd.
Comment
UCD100196
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.
Comment
UCD82342
Calandrinia ciliata
Robin McMaster
1973-4-15
332
Colusa
middle of Bear Valley.
Comment
CHSC60670
Callitriche marginata
Vernon H. Oswald
1993-4-14
5261
Colusa
W side of O'Hair Rd., just S of Hwy. 20, Colusa National Wildlife Refuge, SW of Colusa. On the bottom of a depression in a field along the road.
18
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
CHSC112277
Calochortus amabilis
Lowell Ahart; John Dittes, Josephine Guardino
2013-4-26
18640
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
CHSC79618
Calochortus amabilis
B. Castro; L. P. Janeway
2000-5-3
1126
Colusa
Vicinity of Sites, Sites-Lodoga Rd, and Grapevine Creek.
313
Comment
UC1733753
Calochortus amabilis
Kay H. Beach
1940-5-16
660
Colusa
Colusa and Lake county line
Comment
UC725389
Calochortus amabilis
A. A. Heller
1940-5-6
15577
Colusa
2 mi w Highway 16 junction with State Highway 20 (on State Highway 20)
Comment
CAS-BOT-BC492117
Calochortus amabilis
F. P. Cronemiller
1924-5-10
875
Colusa
Mill Creek Ranger Station
609
Comment
UCD63617
Calochortus amabilis
Craig D. Thomsen
1999-5-12
2030
Colusa
BLM Payne Ranch. Approximately 0.5 mile southwest of intersection of Hwy 16 and Hwy 20. On large knoll.
Comment
UCD139532
Calochortus luteus
K. Esau
1934-5-6
s.n.
Colusa
West of Williams, Ukiah-Tahoe Highway.
Comment
CAS-BOT-BC491931
Calochortus luteus
J. Clausen
1935-5-20
1012
Colusa
18 miles west of Williams on Bartlett Springs road
Comment
RSA601304
Calochortus luteus
Jens Clausen
1935-5-20
1011
Colusa
18 mi W of Williams on Bartlett Springs Road. Past the Stonyford road.
Comment
UCD139535
Calochortus luteus
Grady L. Webster
1977-5-15
7679
Colusa
Bear Creek, ca. 0.5 mile west of junction of Wilbur Springs Road and Rtw. 20.
350
Comment
UC1051720
Calochortus splendens
Helen K. Sharsmith
1953-6-19
4276
Colusa
e slope Snow Mountain (on Bonny Doon road); Inner North Coast Ranges, Mendocino National Forest
670
Comment
UC1051717
Calochortus superbus
Helen K. Sharsmith
1953-6-19
4269
Colusa
near North and Middle Forks of Stony Creek confluence; Inner North Coast Ranges, Mendocino National Forest
548
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
UCD139597
Calochortus uniflorus
Clinton C. Shock
1980-5-3
59
Colusa
Bear Valley, about 12 miles northwest of State Highway 20.
384
Comment
SEINET8197763
Calochortus uniflorus
M. J. Williams
1967-5-7
1187
Colusa
Bear Valley.
Comment
SEINET8369630
Calochortus uniflorus
Christine C. Lorain
1993-4-20
2235
Colusa
7.1 mi s of Leesville alogn Bear Valley Road near shart 90o turn in road (cattle yard).
427
Comment
UCR212336
Calycadenia fremontii
Craig D. Thomsen
2000-6-23
2401
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 2.25).
342
Comment
RSA789275
Calycadenia micrantha
R. L. Carr
1994-9-23
2656
Colusa
Wilson Camp, southwest of Stoneyford, near the Colusa/Lake County line, ca. 3 air miles southeast of Goat Mountain.
1400
Comment
UCD69191
Calycadenia multiglandulosa
P. Rodriguez-Rojo; D. Sanchez-Mata
1997-7-25
s.n.
Colusa
Clear Lake-Williams. Southward Bear Valley Rd. D
415
Comment
UC1552845
Calycadenia pauciflora
Frederica Bowcutt
1985-6-19
605
Colusa
just sw, n of Wilbur Hot Springs about 2 air miles Bear Valley
Comment
UCR44924
Calycadenia pauciflora
L. F. LaPre
1986-5-30
s.n.
Colusa
Stony Creek Road, Mendocino Natl Forest
474
Comment
CAS-BOT-BC270742
Calycadenia pauciflora
Gerald D. Carr
1972-8-2
723
Colusa
0.6 mile W of Leesville - Lodoga Road on road to Cook's Springs
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
RSA255514
Calycadenia pauciflora
Gerald D. Carr
1971-9-15
658
Colusa
6 miles north of Yolo County Line on Hwy. 16
Comment
RSA255558
Calycadenia pauciflora
Gerald D. Carr
1972-7-29
720
Colusa
0.3 miles east of Lake County line on Bartlett Springs Road
Comment
UC1876244
Calycadenia pauciflora
Gerald D. Carr
1972-7-29
722
Colusa
1.8 mi E of Walker Ridge Rd. on Deadshot Rd.
731
Comment
UC1876259
Calycadenia pauciflora
Gerald D. Carr
1971-7-29
608
Colusa
1 mi S of Stoneyford on road to Lodoga.
365
Comment
UC1971710
Calycadenia pauciflora
1978-8-20
2155
Colusa
Brim Road (to Bartlett Springs), 1.5 mi W of jct with Bear Valley Road, ca. 3.6 mi SW of Leesville (=GDC 652)
482
Comment
UCD129838
Calycadenia pauciflora
Gerald D. Carr
1972-7-29
721
Colusa
3.1 miles south of Bartlett Springs Road on Walker Ridge Road, Buck Flat.
868
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
UCSB6412
Calycadenia pauciflora
Keator, Glenn
1958-6-16
Colusa
Along road from Lower Lake to Sacramento Valley just east of Lake-Colusa county line
Comment
UCD67591
Calycanthus occidentalis
Charles Martin
1986-5-17
29
Colusa
Along Fouts Spring Rd., 2.8 miles W of Stonyford, along roadside. Growing along small stream, soil dry. Large shrub, ca. 10 ft tall, flowers large, reddish.
Comment
UCD81713
Calycanthus occidentalis
Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia
2009-5-27
5719
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
UCD82572
Calycanthus occidentalis
Craig Thomsen
2008-6-12
2763
Colusa
Walker Ridge, Elgin Mine area.
Comment
UC1731405
Calyptridium quadripetalum
Dean W. Taylor
1998-6-23
16713 A
Colusa
ca. 1 mi. s.e. Baldy Mt. (stock pond at head Doyle Canyon); N. coast Range Region (NCoRI), Walker Ridge, Doyle Canyon
853
Comment
UCD163878
Calystegia collina
Craig D. Thomsen
2001-5-24
2534
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
HSC48190
Calystegia collina subsp. collina
Thomas W. Nelson, Jane Nelson
1978-4-29
3965
Colusa
Along Hwy. 20 just E of Colusa-Lake Co. line
549
Comment
UCD163873
Calystegia collina subsp. collina
Craig D. Thomsen
2000-5-11
2307
Colusa
Bear Creek Botanical Management Area. Caltrans right-of-way on south side of Hwy 20, about 1.5 mile west of Hwy 20/16 instersection.
Comment
RSA0059895
Calystegia collina subsp. collina
Gloria R. Campbell
1948-6-18
653
Colusa
2 miles west of junction of Highways 16 and 20.
Comment
CHSC70976
Calystegia collina subsp. oxyphylla
Vernon Oswald; Lowell Ahart
1998-5-7
9000
Colusa
Barlett Springs Rod. 2.1 mi west of Bear Valley Rd., 0.8 mi east of Sawtelle Valley and Grapevine Flat roads.
524
Comment
RSA800324
Calystegia collina subsp. oxyphylla
Sandra M. Namoff, Eric R. Carter
2013-6-16
79
Colusa
North of Hwy. 20 take Bear Valley Rd to Brim Rd, population is 0.2 miles NE of intersection of Brim Rd and Bartlett Springs Rd.
648
Comment
JEPS81301
Calystegia occidentalis subsp. occidentalis
L. R. Heckard and J. C. Hickman
1982-7-5
5915
Colusa
slope below Summit Springs, S side Snow Mountain
Comment
HSC45719
Camissonia contorta
Sheila Logan
1978-4-22
27
Colusa
Bear Valley Rd., 1.5 mi. from its junction with Hwy. 20
412
Comment
HSC45729
Camissonia ignota
Mark Flippo
1978-4-22
15
Colusa
Bear Valley Rd., 1.5 mi. from its jct. with Hwy. 20
412
Comment
UCD146729
Camissoniopsis hirtella
G. F. Hrusa
1998-6-19
14613
Colusa
Inner North Coast Ranges. Above upper Little Stony Creek. Goat Mountain Roud around 1.5 km west of campground.
485
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
CAS-BOT-BC37027
Capsella bursa-pastoris
Roxana S. Ferris
1917-4-12
519
Colusa
4 miles east of Williams. Alkali Plains.
Comment
CHSC62923
Cardamine oligosperma
Vernon H. Oswald; Lowell Ahart
1994-4-6
6056
Colusa
Goat Mtn. Rd. 0.1 mi NE of Digger Pine Flat, S of Stonyford. On a roadside bank.
463
Comment
CDA30193
Cardaria chalepensis
D. Isle
2007-4-13
1633
Colusa
East of Maxwell ~ 1 mile; south of Maxwell Road and East of Lyons Road in ditch between rice fields east of William Dirk s shop.
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
CHSC79446
Carduus pycnocephalus
B. Castro
2000-5-2
1112
Colusa
Vicinity of Sites, Sites-Lodoga Rd, and Grapevine Creek.
231
Comment
UCD159527
Carduus pycnocephalus subsp. pycnocephalus
D. S. Park
2011-4-6
276
Colusa
Off Rt. CA-20. Roadside. Disturbed.
Comment
SEINET10644548
Carex
Roxana S. Ferris
1917-4-17
Ferris 607
Colusa
Moist earth in an oak grove. Sycamore Slough.
Comment
JEPS75133
Carex athrostachya
L. R. Heckard
1972-7-8
3040
Colusa
N side Snow Mountain (West Peak)
2011
Comment
POM163445
Carex barbarae
Roxana S. Ferris
1926-4-22
6315
Colusa
Near Sycamore.
Comment
CHSC79590
Carex bolanderi
L. P. Janeway
2000-5-31
6772
Colusa
High North Coast Ranges. At Trough Spring; about 8.9 km southwest of Stonyford.
1049
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
CHSC94429
Carex densa
Lowell Ahart
2006-8-22
13213
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
347
Comment
CHSC92529
Carex feta
G. F. Hrusa; WTD
1998-6-19
14619
Colusa
Wet area on spring along Goat Mtn. Rd. below intersection with USFS Pacific Ridge Rd. (M5).
975
Comment
JEPS80866
Carex hoodii
L. R. Heckard and J. C. Hickman
1981-7-31
5778
Colusa
near Fouts Springs Overlook (e side of Snow Mt.); Snow Mt.
1798
Comment
JEPS75132
Carex jonesii
L. R. Heckard
1972-7-8
3060
Colusa
upper reaches of Dark Hollow Creek in saddle between East Peak of Snow Mt. and West Peak of Snow Mt.; Snow Mt., Dark Hollow Creek
1981
Comment
JEPS80378
Carex jonesii
L. R. Heckard and J. Hickman
1981-6-22
5611
Colusa
s side of east ridge of East Peak Snow Mt., East Peak
1950
Comment
JEPS80857
Carex jonesii
L. R. Heckard and J. C. Hickman
1980-9-16
5458
Colusa
cirque area between peaks, ne slope of West Peak Snow Mt., West Peak
2011
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
JEPS75130
Carex luzulina var. luzulina
L. R. Heckard
1972-7-8
3041
Colusa
north side of ridge running southeast of Snow Mt., West Peak
2011
Comment
UCD80894
Carex nudata
Jack Alderson; G. Harrington
2009-3-25
25
Colusa
BLM Bear Creek (Payne) Ranch, lands to the SW of the jct of Hwys 16 and 20. Brophy Canyon, lower reaches.
309
Comment
CHSC85983
Carex pachystachya
L. P. Janeway
2003-7-19
7907
Colusa
High Cascade Range. Along the south edge of Little Willow Lake. Just above high water line.
1831
Comment
UCD163311
Carex praegracilis
Craig D. Thomsen
1997-4-13
1899
Colusa
Bear Valley. About 6 miles north of Hwy 20. Southwest of old corral area (USGS Topo Map), where road takes a 90 degree turn to the north.
Comment
UCR228283
Carex praegracilis
Ellen Dean, Gordon Harrington, Craig D. Thomsen, S. Harrison
2008-5-18
4947
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
399
Comment
CAS-BOT-BC118348
Carex praegracilis
Roxana S. Ferris
1917-4-17
625
Colusa
Under trees, Sycamore Slough.
Comment
RSA262496
Carex praegracilis
Sam Olusuyi
1967-4-29
35
Colusa
9 miles north of junction of Wilbur Springs Road and State Highway 20, Bear Valley.
396
Comment
CHSC79853
Carex serratodens
L. P. Janeway
2000-5-31
6771
Colusa
High North Coast Ranges. At Trough Spring; about 8.9 km southwest of Stonyford.
1049
Comment
UCD67060
Carex serratodens
Craig D. Thomsen
2008-3-20
2716
Colusa
BLM Payne Ranch. Lands to the SW of Hwy 20/16 intersection. South side of Hwy 20, about 0.5 mile west of Hwy 16/20 intersection, at Colusa Co. milepost 2.63.
600
Comment
UCD67061
Carex serratodens
Craig D. Thomsen
2008-3-20
2715
Colusa
BLM Payne Ranch. Lands to the SW of Hwy 20/16 intersection. South side of Hwy 20, about 0.5 mile west of Hwy 16/20 intersection, at Colusa Co. milepost 2.63.
500
Comment
UCD82720
Carex serratodens
Craig Thomsen; G. Harrington
2009-5-14
2903
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
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
JEPS75135
Carex subfusca
L. R. Heckard
1972-7-8
3040 a
Colusa
on n side of ridge running se West Peak; Snow Mt.
2011
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
CHSC77956
Castilleja affinis subsp. affinis
Beth Hendrickson; Jean Witzman
1999-3-17
Colusa
Vicinity of Antelope Valley, Grapevine Creek, and Sites-Lodoga Road.
158
Comment
CHSC89621
Castilleja affinis subsp. affinis
Caroline Warren; Jenny Marr
1998-5-4
Colusa
Vicinity of Sites, Stone Corral Creek, and Antelope Valley.
106
Comment
JEPS74811
Castilleja affinis subsp. affinis
L. R. Heckard, T. I. Chuang and R. Bacigalupi
1975-5-7
4019
Colusa
4.5 mi se (by road) Leesville
Comment
CHSC71000
Castilleja applegatei subsp. martinii
Vernon Oswald; Lowell Ahart
1998-5-7
8995
Colusa
Bartlett Springs Rd. 1.6 mi west of Bear Valley Rd.
487
Comment
CHSC88871
Castilleja applegatei subsp. martinii
Christine Hantelman
2000-4-1
46
Colusa
At side of Bear Valley Road.
365
Comment
JEPS94198
Castilleja applegatei subsp. martinii
Vernon Oswald and Lowell Ahart
1998-5-7
8995
Colusa
Bartlett Springs Rd. 1.6 mi. w. of Bear Valley Rd.
487
Comment
JEPS81324
Castilleja applegatei subsp. pinetorum
L. R. Heckard and J. C. Hickman
1982-7-6
5939
Colusa
slope 1/2 mi NE of Summit Springs (E of trail); Snow Mountain, S side
1645
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
CHSC27516
Castilleja attenuata
Michael F. Henetz
1978-4-15
6
Colusa
Ca. 150 m s of Hwy 20, ca. .5 km w of Williams. S central border of Section 36.
322
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
UCR233448
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
UCD122327
Castilleja attenuata
Alpaslan Ongun
1961-4-16
38
Colusa
South of wooden bridge; in Bear Valley, ca. 8 miles north of State Highway 20.
Comment
UCD122333
Castilleja attenuata
Kim E. Steiner
1978-4-29
194
Colusa
Walker Ridge Rd., 1.5 mi N of State Hwy 20.
777
Comment
CHSC27558
Castilleja exserta
W. K. Cheechov
1978-4-9
4
Colusa
5.1 mi w of Walker Ridge Rd., Hwy 20.
457
Comment
CHSC27851
Castilleja exserta
Susan Perkins
1978-4-8
33
Colusa
Meadow ca. 3 mi w of jct. of Hwys 20 and 16, s side of Bear Creek, ca. 18 mi sw of Williams.
321
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
UCD40887
Castilleja exserta
R. Rhode
1984-4-21
s.n.
Colusa
10 miles north of intersections of highways 16 and 20 in Bear Valley.
426
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
JEPS124296
Castilleja exserta subsp. exserta
Lowell Ahart
2015-4-10
20026
Colusa
About 4 mile south of Lodoga.
Comment
JEPS16218
Castilleja exserta subsp. exserta
Rimo Bacigalupi and Arthur Holmgren
1950-4-26
3165
Colusa
8 mi nw Maxwell (along road Sites, on extreme w edge of the Sacramento Valley); Sacramento Valley
Comment
JEPS58564
Castilleja exserta subsp. exserta
Rimo Bacigalupi
1969-4-13
9325
Colusa
floor of Bear Valley, along county road on boundary between Townships 15N and 14N Bear Valley
Comment
RSA794941
Castilleja exserta subsp. exserta
George K. Helmkamp, E. A. Helmkamp
2011-4-1
17125
Colusa
Antelope Valley, along Maxwell-Sites Road, 0.4 miles southeast of Sites
93
Comment
UCD64254
Castilleja exserta subsp. exserta
Craig D. Thomsen
2000-3-31
2055
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
HSC67098
Castilleja exserta subsp. exserta
D. Boyd, M. Eichelberger, Tim Messick, T. Ranker
1980-4-19
42
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
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
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
UCR225396
Castilleja foliolosa
Ellen Dean, Gordon Harrington, J. Alderson, E. Bayon, R. Willmarth
2008-6-8
5092
Colusa
BLM Payne Ranch, lands to the southwest of the junction of Hwys 16 and 20. Western side of ranch along trail that follows the border of Lake and Colusa counties. South of Dunsfield Flat
648
Comment
HSC99291
Castilleja foliolosa
J. Carey, A. Hong, J. Leffingwell
1995-4-1
25
Colusa
Brim Rd., 1.6 mi. W of junction with Bear Valley Rd.
488
Comment
JEPS80826
Castilleja miniata
L. R. Heckard and J. C. Hickman
1981-7-31
5798
Colusa
e side Snow Mt. (Dark Hollow Creek); , Dark Hollow Creek
1615
Comment
JEPS82554
Castilleja miniata
L. R. Heckard
1983-7-27
6101
Colusa
ca 2 mi w Stonyford road; Little Stony Creek
411
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
UC1238982
Castilleja minor subsp. spiralis
Freed W. Hoffman
1947-6-19
1663
Colusa
Cook's Spring; North Coast Ranges
Comment
JEPS11154
Castilleja rubicundula subsp. lithospermoides
W. L. Jepson
1938-6-9
18964
Colusa
mountains between Indian Valley and Bear Valley (between Lake County and Colusa County)
579
Comment
CHSC112315
Castilleja rubicundula subsp. rubicundula
Lowell Ahart
2013-5-1
18687
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
CHSC34821
Castilleja rubicundula subsp. rubicundula
M. S. Taylor; E. Pierce
1981-5-17
3757
Colusa
On e side of Ladoga-Stonyford Rd.
335
Comment
CHSC56783
Castilleja rubicundula subsp. rubicundula
Peggy Brennan
1980-4-19
107
Colusa
Ca 0.3 mi west of junction of Hwy 20 and Hwy 16; south side of Bear Creek, ca 18 mi southwest of Williams.
321
Comment
JEPS11156
Castilleja rubicundula subsp. rubicundula
W. L. Jepson
1932-5-8
16284
Colusa
Stonyford; w Colusa County
365
Comment
JEPS124233
Castilleja rubicundula subsp. rubicundula
Lowell Ahart
2015-4-1
19987
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
UCD123057
Castilleja rubicundula subsp. rubicundula
John M. Tucker
1980-5-3
4444
Colusa
Bear Valley, 4.3 mi. south of junction of Brim Road and Bear Valley Road.
396
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
CDA11400
Castilleja tenuis
G. F. Hrusa, K. van Katwyk
1995-4-22
12120
Colusa
Inner North Coast Ranges; flat on Walker Ridge Road, approx. 6 m. S of intersection with Bartlett Springs Rd.
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
RSA0121887
Caulanthus flavescens
Roxana S. Ferris
1926-4-23
6405
Colusa
Near Mountain House on the Williams-Stonyford Road.
Comment
CHSC112311
Caulanthus lasiophyllus
Lowell Ahart
2013-5-1
18681
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
CAS-BOT-BC48829
Ceanothus cuneatus
Roxana S. Ferris
1926-4-23
6580
Colusa
Stonyford
Comment
CDA12246
Ceanothus cuneatus
G. F. Hrusa
1989-2-7
5808
Colusa
Inner North Coast Ranges; Leesville Road between Bear Valley & Williams.
Comment
HSC47566
Ceanothus cuneatus
J. P. Smith, J. O. Sawyer
1978-4-29
9768
Colusa
Walker Ridge Rd. 3.4 mi. from its jct. with Hwy. 20
Comment
UCD22472
Ceanothus cuneatus
Brian Vanden Heuvel
2003-2-20
201
Colusa
6.7 miles west of Stonyford on Fouts Spring Road.
Comment
CAS-BOT-BC50803
Ceanothus integerrimus
Brent Helm; Curtis Miller; Mark Steiger
1988-4-16
74
Colusa
2.4 miles west on Goat Mountain Rd., off of Lodoga-Stonyford Rd.
441
Comment
UCD146602
Ceanothus integerrimus
G. F. Hrusa
1998-6-19
14637
Colusa
North Coast Ranges. On Trough Ridge Road. (To Fouts Springs, from Pacific Ridge Road.)
1200
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
UCD170262
Ceanothus integerrimus
D. O. Burge
2016-11-3
2186
Colusa
Fouts Springs area, roadside on Forest Road M10, E of Fouts Springs.
610
Comment
UCD170263
Ceanothus integerrimus
D. O. Burge
2016-11-3
2187
Colusa
Little Stony Creek watershed, roadside on Goat Mountain Road.
415
Comment
UCD112068
Ceanothus jepsonii
D. Sanchez-Mata
1998-7-9
s.n.
Colusa
Lodoga-Stonyford. Mendocino National Forest. Goat Mountain Road between Lodoga and Red Rock Cabin. At Stoney Creek.
450
Comment
SEINET13945967
Ceanothus jepsonii
Thomas E. Higley
1974-1
69
Colusa
3/4 mi N of T junction ofIndian Valley; 2800 ft alt., T14N R6W SEC12
Comment
HSC60452
Ceanothus jepsonii var. albiflorus
J. P. Smith
1977-4-24
9036
Colusa
Along Walker Ridge Rd. above Barrel Springs Campground
701
Comment
RSA757814
Ceanothus jepsonii var. albiflorus
Dylan O. Burge
2008-5-27
DOB 997 c
Colusa
Rathburn-Petray Mine complex, east of Eaton Springs, 12.3 km 193 degrees true south-southwest of Leesville.
700
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
UCR225463
Ceanothus oliganthus var. sorediatus
Ellen Dean, Gordon Harrington, J. Alderson, E. Bayon, R. Willmarth
2008-6-8
5117
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
CDA15500
Ceanothus parryi
G. F. Hrusa, WTD
1998-6-19
14637
Colusa
North Coast Ranges; Trough Ridge Rd. (to Fouts Springs, from Pacific Ridge Rd.)
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
JEPS104358
Centaurea melitensis
Lowell Ahart
2003-7-14
10387
Colusa
By a wash, on the e side of Bear Valley Rd, ca 3 mi nw of Highway 20.
381
Comment
UCD163227
Centaurea melitensis
Craig D. Thomsen
2000-6-23
2407
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
RSA725012
Centaurea solstitialis
L. Ahart
2006-8-9
13148
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
348
Comment
UCR206392
Centaurea solstitialis
George K. Helmkamp, E. A. Helmkamp
2009-5-20
14758
Colusa
Inner North Coast Ranges, along CA-16, 1.8 miles north of the Yolo County line
271
Comment
UCR227905
Centaurium trichanthum
Ellen Dean, Gordon Harrington, J. Alderson, E. Bayon, R. Willmarth
2008-6-8
5060
Colusa
BLM Payne Ranch, lands to the southwest of the junction of Hwys 16 and 20, area of ranch west of Hwy 16, near bridge that spans Bear Creek, c. 4.5 road miles south of junction of Hwy 16/20. Bank of Bear Creek near south end of bridge, east side of creek
555
Comment
RSA92959
Centaurium trichanthum
Milo S. Baker
1941-7-8
10115
Colusa
Colusa County: roadside ditch Bear Valley in adobe, S of Lodoga
Comment
UCD20134
Centromadia
Donald W. Kyhos
1962-8-4
62 -184
Colusa
5.4 miles east of Colusa County line on Hwy 99.
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
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
JEPS118677
Centromadia parryi subsp. rudis
B. Castro with Dave Bogener
2011-9-1
1912
Colusa
Sacramento Valley. 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. Moulton Weir 7.5' quad.
Comment
SBBG119873
Centromadia parryi subsp. rudis
L. Ahart
2003-8-15
10510
Colusa
S side of St Hwy 20, ca. 1 mi SW of Williams
27
Comment
UC1069558
Centromadia parryi subsp. rudis
H. S. Yates
1936-8-14
17575
Colusa
3 mi s Colusa
Comment
UCD16094
Centromadia pungens
J. Schmierer
1999-4-27
s.n.
Colusa
Exact location unknown.
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
UC195398
Centromadia pungens subsp. pungens
A. A. Heller
1916-6-9
12391
Colusa
along the state hwy near Colusa
Comment
UCD58094
Cerastium glomeratum
Ellen Dean; C. Thomsen, S. Bledsoe, G. Harrington, D. Hickson
2007-3-25
3471
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
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
CAS-BOT-BC136987
Cercocarpus betuloides var. betuloides
Roxana S. Ferris
1926-4-23
6419
Colusa
Grade beyond Mountain House on Williams - Stonyford Road
Comment
UCR206710
Cercocarpus betuloides var. betuloides
George K. Helmkamp, E. A. Helmkamp
2009-3-17
14397
Colusa
Inner North Coast Ranges Foothills, along CA-16 and Bear Creek, 7.0 miles south of the junction with CA-20; just north of the Yolo County line
194
Comment
UC630425
Chaenactis glabriuscula var. heterocarpha
Annetta Carter
1938-5-8
1394
Colusa
4 mi se of Wilbur Springs; Inner North Coast Ranges, Bear Creek Canyon
Comment
UC638668
Chaenactis glabriuscula var. heterocarpha
Ethel Crum
1938-5-7
2014
Colusa
4.2 mi n of Rumsey; Inner North Coast Ranges, Comanche Hills
254
Comment
UCD81859
Chaenactis glabriuscula var. heterocarpha
Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia
2009-5-27
5743
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
JEPS2596
Chamaesyce ocellata subsp. rattanii
Volney Rattan
June 1884
Colusa
n San Francisco Bay; Coast Mts., Stony Creek; Stony Creek, Colusa Co., N of San Francisco Bay
Comment
JEPS110186
Chamaesyce serpillifolia subsp. hirtula
Lowell Ahart
2006-8-9
13115
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford
347
Comment
CHSC77333
Chamaesyce serpillifolia subsp. serpillifolia
Heidi West; Joyce Lacey-Rickert
1998-10-29
Colusa
Vicinity of Antelope Valley and Sites.
109
Comment
CHSC94456
Chamaesyce serpillifolia subsp. serpillifolia
Lowell Ahart
2006-8-9
13115
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
347
Comment
IRVC29631
Cheilanthes
Mark A. Elvin, Mark S. Brunell, David Isle
2006-8-3
5027
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
UC1415295
Cheilanthes gracillima
Dale E. Johnson and J. E. Eckenwalder
1974-6-2
127
Colusa
ridge connecting E and W Peaks Snow Mt
2150
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
RSA724893
Chenopodium album
L. Ahart
2006-8-22
13221 -A
Colusa
south side of Stony Creek, about 100 yards west of the bridge across Stony Creek, just north of Stonyford.
349
Comment
JEPS110058
Chenopodium berlandieri
Lowell Ahart
2006-8-22
13220 A
Colusa
South side of Stony Creek, about 100 yards west of the bridge across Stony Creek, just north of Stonyford
349
Comment
RSA724958
Chenopodium botrys
L. Ahart
2006-8-9
13119
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
348
Comment
UCD63033
Chenopodium californicum
Ellen Dean; C. Thomsen, N. Voegtly, J. Alderson, G. Harrington
2008-3-30
4685
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwys 20 and 16. Along west side of Bear Creek, opposite Cowboy Canyon.
312
Comment
UCD168861
Chenopodium strictum var. glaucophyllum
John Anderson
2015-1
s.n.
Colusa
about 0.5 mile north of Colusa Casino west of Highway 45.
Comment
UCD37706
Chloris virgata
Beecher Crampton
1961-7-20
5932
Colusa
2 miles S of Grimes.
Comment
CAS-BOT-BC238007
Chloropyron palmatum
Dean Wm. Taylor
1988-8-8
10024
Colusa
Sacramento Valley. Colusa National Wildlife Refuge, in the far SE corner of the Refuge along Ohm Road 1 mile N of Ware Road
22
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
UCD57280
Chorizanthe membranacea
Ellen Dean; C. Thomsen, S. Bledsoe, J. Alderson, M. Starbuck
2007-4-7
3648
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
UCR138873
Chorizanthe membranacea
B. Ellyson, J. Hooke, D. Newman
1996-5-5
43
Colusa
Coast Range, Leesville, 9.7 mi NW of Hwy 20 on Leesville Rd.; 70 mi east of Hwy 101 on Hwy 20
445
Comment
RSA133247
Chrysothamnus nauseosus subsp. albicaulis
Peter H. Raven, R. Snow
1959-9-11
14416
Colusa
0.5 mile south of Snow Mt.
1921
Comment
CHSC93137
Cicuta douglasii
D. Isle
2001-7-26
1388
Colusa
Mendocino National Forest--North Coast Ranges. Middle Fork Stony Creek Watershed. In spring west of Letts Lake day use area.
Comment
UCD165930
Cirsium cymosum
Ellen Dean; with Tom Starbuck
2016-4-24
8841
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).
391
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
CDA1191
Cirsium douglasii var. breweri
G. D. Barbe, Daryl Brown
1982-7-2
3892
Colusa
Lower Letts Lake, Mill Valley Campground.
Comment
UCD159335
Cirsium douglasii var. breweri
D. S. Park; E. Dean
2010-6-5
119
Colusa
Walker ridge, Cold Spring Mt.
886
Comment
JEPS81287
Cirsium occidentale var. venustum
L. R. Heckard and J. C. Hickman
1982-7-5
5898
Colusa
slope below (s of) area Summit Springs (s side of mountain); Snow Mt., Summit Springs
1500
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
CHSC32911
Clarkia affinis
C. Macdonald; P. Powers, C. Raley, J. Spitler, D. Stamp
1980-4-19
55
Colusa
Leesville Road, road from Leesville to Williams, 3.8 miles east of Leesville.
Comment
CHSC86959
Clarkia affinis
B. Castro
2003-4-10
1421
Colusa
Vicinity of Logan Ridge, Sulphur Gap and Lurline Creek. In E-trending small side canyon tributary.
158
Comment
JEPS105670
Clarkia affinis
L. P. Janeway
2002-4-24
7518
Colusa
Sacramento Valley/Inner North Coast Ranges border. Vicinity of Logan Ridge, Stone Corral Creek, Funks Creek, and Golden Gate
124
Comment
UC762214
Clarkia affinis
R. F. Hoover
1938-4-24
3231
Colusa
below Sites; Stone Corral Canyon
Comment
CDA37986
Clarkia affinis
T. C. Fuller
1958-5-28
s.n.
Colusa
Highway 20, 2 miles west of junction with Highway 16.
0
Comment
LA17909
Clarkia concinna
Peter H. Raven;
1962-5-31
sn
Colusa
State Hwy 20, 2.5 mi E of Lake County line
Comment
JEPS90048
Clarkia concinna subsp. concinna
Dean Wm. Taylor with Glenn Clifton
1990-6-11
11222
Colusa
along Goat Mountain Road 2.9 mi w from junction of Logada-Stonyford Road 0.1 mi downstream w confluence of Frenzel Creek, Little Stony Creek drainage Frenzel Creek; North Coast Ranges, Frenzel Creek Research Natural Area
441
Comment
UCD66706
Clarkia concinna subsp. concinna
Craig D. Thomsen
2001-5-24
2502
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
POM216174
Clarkia concinna subsp. concinna
D. D. Keck
1933-5-30
2401
Colusa
1 mile east of Lake County line, west of Wilbur Springs
Comment
RSA0060004
Clarkia concinna subsp. concinna
G. R. Campbell
1948-6-18
654
Colusa
2 miles west of junction of Highway 16 and Highway 20
Comment
UC1552828
Clarkia gracilis
Frederica Bowcutt
1985-5-5
506
Colusa
ca. 1 mi nw Wilbur Springs
Comment
CHSC48626
Clarkia gracilis subsp. gracilis
Vernon Oswald
1984-5-2
1163
Colusa
Sites-Lodoga Rd. 9.5 mi w of Sites. On a road cut.
533
Comment
CHSC86869
Clarkia gracilis subsp. gracilis
B. Castro; Shirley Innecken
2003-4-9
1417
Colusa
Vicinity of Sites, hills N of the Sites-Lodoga Rd, and Grapevine Creek.
164
Comment
CAS-BOT-BC172035
Clarkia gracilis subsp. gracilis
Tamara Gedik; Thom Heinz; Rebecca Siegle
1996-5-4
52
Colusa
8.4 mi. north of Indian Reservoir Rd. on Walker Ridge Rd., campground.
670
Comment
CDA12217
Clarkia gracilis subsp. tracyi
G. F. Hrusa
1993-6-1
11165
Colusa
North Coast Biodiversity Arena; Bear Valley-Bartlett Springs Rd. midway up east side of Walker ridge.
Comment
CAS-BOT-BC163285
Clarkia modesta
Peter H. Raven
1963-5-20
18401
Colusa
9.5 miles east of Houghs Springs (Lake County)
Comment
RSA0059906
Clarkia modesta
Peter H. Raven
1963-5-20
18401
Colusa
9.5 miles east of Houghs Springs (Lake County)
Comment
HSC86833
Clarkia purpurea
S. L. Steinwert
1985-4-13
10
Colusa
Salt Canyon, N side of Salt Creek, Hwy. 20, 11 mi. WSW of Williams
143
Comment
CHSC85962
Clarkia purpurea subsp. quadrivulnera
Jenny Marr; Heidi West, Joyce Lacey-Rickert, Caroline Warren
1998-5-8
Colusa
Vicinity of Sites and Antelope Valley.
152
Comment
UCD64423
Clarkia purpurea subsp. quadrivulnera
Craig D. Thomsen
2000-4-28
2180
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
UC1051695
Clarkia purpurea subsp. quadrivulnera
Helen K. Sharsmith
1953-6-18
4258
Colusa
near Fouts Springs (above Mill Creek); Inner North Coast Ranges, Mendocino National Forest
609
Comment
CHSC25155
Claytonia exigua subsp. exigua
J. D. Sagray
1970-4-4
5
Colusa
1 mi w of Abbott Mercury Mine on Hwy 20, 2 ft off side of Hwy.
594
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
UCD66462
Claytonia exigua subsp. exigua
Craig D. Thomsen
2001-4-12
2457
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-BC439114
Claytonia exigua subsp. exigua
K. L. Chambers
1978-3-19
4423
Colusa
Hwy. 20 between Williams and Clear Lake, Inner Coast Range, 15.8 mi. W of Hwy. 5 and 2.9 mi. E of junction with Hwy. 16.
Comment
UC1051500
Claytonia exigua subsp. exigua
Helen K. Sharsmith
1953-6-19
4281
Colusa
near Trough Springs (on Trough Springs Ridge); Inner North Coast Ranges, Mendocino National Forest
975
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
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
CDA12162
Claytonia parviflora
G. F. Hrusa
1989-5-7
6090
Colusa
North Coast Ranges; N side of Little Stony Creek, approx. 3 miles upstream from junction with Stonyford-Lodoga Rd.
Comment
UCD66466
Claytonia parviflora
Craig D. Thomsen
2001-4-12
2458
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
UCD67063
Claytonia parviflora
Craig D. Thomsen
2008-3-20
2717
Colusa
BLM Payne Ranch. Lands to the SW of Hwy 20/16 intersection. South side of Hwy 20, about 0.5 mile west of Hwy 16/20 intersection, at Colusa Co. milepost 2.63.
450
Comment
UCD82628
Claytonia parviflora
Craig Thomsen; G. Harrington
2009-5-12
2900
Colusa
Colusa County on Walker Ridge: from spur road about 1/2 mile east of Walker Ridge Road, en route to Eaton Springs.
813
Comment
UCD82629
Claytonia parviflora
Craig Thomsen; G. Harrington
2009-5-12
2901
Colusa
Colusa County on Walker Ridge: from spur road about 1/2 mile east of Walker Ridge Road, en route to Eaton Springs.
813
Comment
UC638662
Claytonia parviflora subsp. parviflora
Ethel Crum
1938-5-8
2021
Colusa
3 mi n Leesville; Inner North Coast Ranges
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
UCD56942
Claytonia perfoliata
Ellen Dean; Gordon Harrington and Kate Mawdsley
2007-3-30
3544
Colusa
BLM Payne Ranch. Southwest of intersection of Hwy. 16 and Hwy. 20. Thompson Canyon.
349
Comment
CAS-BOT-BC440035
Claytonia perfoliata subsp. perfoliata
Roxana S. Ferris
1926-4-21
6311
Colusa
Sycamore Slough near Sycamore
Comment
SEINET199005
Claytonia saxosa
H. K. Sharsmith
1953-6-20
4292
Colusa
Mendocino National Forest ; Summit of Goat Mt. Lake-Colusa boundary
1864
Comment
UC1051737
Claytonia saxosa
Helen K. Sharsmith
1953-6-20
4292
Colusa
summit of Goat Mountain Inner North Coast Ranges, Mendocino National Forest, Goat Mt (Lake-Colusa boundary)
1864
Comment
UCD67098
Claytonia saxosa
Ellen Dean; Davis Botanical Society
2008-5-31
5026
Colusa
west of I-5 at Maxwell, Goat Mountain, ridge below summit off of Goat Mountain Road.
1734
Comment
SFV8355
Clematis lasiantha
D. Grau
1972-4-1
4
Colusa
Highway 16, 5 miles south of junction with Highway 20.
Comment
CHSC111245
Clematis ligusticifolia
B. Castro
2008-7-10
1773
Colusa
Sacramento Valley. Along S bank of Sacramento River, ca 5 mi N of town of Colusa, just N of Reservation Road; in undesignated section near Colusa Rancheria.
18
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
UCD61470
Clematis ligusticifolia
Ellen Dean; G. Harrington, N. Voegtly, J. Alderson, C. Thomsen
2007-6-24
3916
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 S of parking lot, along Bear Creek.
312
Comment
POM257147
Collinsia bartsiifolia var. bartsiifolia
E. K. Crum
1938-5-8
2020
Colusa
3 miles north of Leesville.
Comment
CHSC27553
Collinsia grandiflora
Scott E. Patton
1978-4-9
8
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
SEINET12290591
Collinsia grandiflora
L. L. Pate
1978-1
83
Colusa
ca 0.3 mi W of jct of Hwy 20 & 16, S side of Bear Creek, ca 18 mi SW of Williams
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
CHSC33348
Collinsia heterophylla
R. M. Winchell
1980-4-12
1
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
CDA34126
Collinsia heterophylla
P. Hiatt
1979-4-26
Colusa
North end of Bear Valley at Bartlett Springs Road.
0
Comment
CHSC88866
Collinsia sparsiflora
Christine Hantelman
2000-4-1
39
Colusa
In Bear Valley. West side of creek.
Comment
UC725923
Collinsia sparsiflora var. arvensis
A. A. Heller
1937-4-24
15352
Colusa
13 mi w of Williams (on State Highway #20)
Comment
HSC44465
Collinsia sparsiflora var. collina
R. York
1978-4-22
140
Colusa
Bear Valley Rd., 1.5 mi. from its junction with S.R. 20
409
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
HSC31719
Collomia diversifolia
Teresa Prendusi
1974-5-4
51
Colusa
Beyond Clyde Mine 1/8 mi.
854
Comment
UC1191132
Collomia diversifolia
Herbert L. Mason
1953-5-5
14519
Colusa
s end Cracker Box Ridge (along creek); Little Stoney Creek
Comment
UCD81711
Collomia diversifolia
Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia
2009-5-27
5717
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
UCD81856
Collomia diversifolia
Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia
2009-5-27
5740
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
CDA40008
Collomia diversifolia
Vernon H. Oswald & Lowell Ahart
1998-5-7
9006
Colusa
Bartlett Springs Road 2.1 miles west of Bear Valley Road, 0.8 mile east of Sawtelle Valley and Grapevine Flat roads.
Comment
CHSC64135
Collomia tinctoria
David Isle
1992-8-3
Colusa
Snow Mountain. Just west of the helispot.
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
UCD73112
Conium maculatum
Ellen Dean; J. Alderson, N. Voegtly, and C. Thomsen
2007-5-12
3826
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. 0.25 mile downstream of bridge.
246
Comment
CHSC13499
Convolvulus arvensis
L. V. Ritter
1969-4-30
217
Colusa
Ca 6 mi. sw of Williams, w side of Highway 20.
Comment
UCR201548
Convolvulus arvensis
George K. Helmkamp, E. A. Helmkamp
2008-10-14
14266
Colusa
Sacramento Valley, along River Road (generally following the Sacramento River), 8.4 miles north of Colusa
17
Comment
POM66158
Convolvulus arvensis
Roxana Stinchfield
1916-7-8
401
Colusa
Truck garden Stinchfield Ranch - Sycamore Slough.
Comment
CHSC67606
Cordylanthus palmatus
James D. Jokerst
1988-8-23
3036
Colusa
Delevan National Wildlife Refuge S of Willows, in Cell 12.
Comment
JEPS83552
Cordylanthus palmatus
R. D. Stone
1987-8-26
850
Colusa
w side of Ohm Rd ca 0.5 mi n jct. w/ Ware Rd.; Colusa Nat'l Wildlife Refuge, Arbuckle 7.5' quad.
13
Comment
JEPS83553
Cordylanthus palmatus
R. D. Stone
1987-8-26
850
Colusa
w side of Ohm Rd ca 0.5 mi n jct. w/ Ware Rd. (corner of Colusa Nat'l Wildlife Refuge); Colusa Nat'l Wildlife Refuge, Arbuckle 7.5' quad.
13
Comment
RSA0084707
Cordylanthus palmatus
Ellen Cypher
2004-9-9
2004 -018
Colusa
Delevan National Wildlife Refuge, Tract 33, CNDDB EO# 20
17
Comment
JEPS80717
Cordylanthus pilosus subsp. pilosus
L. R. Heckard and J. C. Hickman
1981-7-28
5677
Colusa
3.7 km e Ladoga Bridge (w of Maxwell, along roadside)
Comment
JEPS75706
Cordylanthus pilosus subsp. pilosus
L. R. Heckard and R. Bacigalupi
1976-9-6
4456
Colusa
6 airmiles se Fouts Springs (along road to Summit Springs, below and w of Summit Springs, 1 mi n of junction with Stoneyford Rd., Colusa-Lake County line); Snow Mt.
1219
Comment
RSA500440
Cordylanthus pringlei
Vernon H. Oswald
1989-4-12
4008
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.
412
Comment
UCD123117
Cordylanthus pringlei
Craig Thomsen; Art Shapiro
2004-9-16
s.n.
Colusa
along Cool Springs Road.
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
SBBG50832
Cornus glabrata
J. K. Clark
1966-5-8
23
Colusa
Lodoga to Stonyford Rd, 2.5 mi NW 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
CHSC100407
Cotula australis
John Dittes; Josephine Guardino
2008-3-14
1513
Colusa
Great Central Valley; Sacramento Valley; between Butte Sink and Sacramento River, north of Sutter Buttes; ca. 1.6 air-miles south of Gridley Road, ca. 1.1 air-miles west of Drumheller Slough.
17
Comment
CHSC101636
Cotula coronopifolia
David Isle
2006-5-5
1627
Colusa
Mendocino National Forest; SW of Maxwell cardlock gas station (S of Maxwell and just W of HW 99W). S end of pre-chiseled Jack Barrett rice check #8 of 10 (counting N to S).
30
Comment
UCD18850
Cotula coronopifolia
Vernal Pool Team 2001; Carol Witham and Jennifer Buck
2001-4-30
158
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
RSA0096943
Crassula connata
R. R. Halse
2010-3-20
7827
Colusa
Williams. By junction of 5th Street and B Street.
25
Comment
SEINET8194448
Crassula connata
R. R. Halse
2010-3-20
7827
Colusa
Williams, junction of 5th Street and B Street
25
Comment
UC75673
Crassula connata var. erectoides
Miss M. Alice King
1905-1
Colusa
near College City; Sacramento Valley
Comment
JEPS86621
Crepis
L. R. Heckard with P. C. Silva, R. L. and M. Moe
1988-6-19
6701
Colusa
0.5 km w Summit Springs (sw flank of Snow Mountain); Snow Mountain
1500
Comment
CHSC32200
Crepis monticola
James Jokerst
1980-8-8
1078
Colusa
North Coast Ranges. Near Snow Mountain (West). Hillside.
Comment
JEPS15568
Crepis pleurocarpa
G. Thomas Robbins with L. R. Heckard
1956-7-25
3713
Colusa
slope above Dark Hollow Creek (a tributary of Middle Fork Stony Creek) (on s flank of mt., at lower edge of cirque between Snow Mt. West and Snow Mt. East); Snow Mt. East
1981
Comment
POM66160
Cressa truxillensis
Roxana Stinchfield
1916-7-11
143
Colusa
Willaims Road at theTrough
Comment
UCD126230
Cressa truxillensis
H. S. Yates
1936-8-14
6133
Colusa
3 miles south of Colusa.
15
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
JEPS120800
Crypsis alopecuroides
Lowell Ahart
2013-10-1
19075
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
CHSC113051
Crypsis schoenoides
Lowell Ahart
2013-10-1
19076
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
CHSC77404
Crypsis schoenoides
Heidi West; Joyce Lacey-Rickert
1998-10-29
Colusa
Vicinity of Antelope Valley and Sites.
109
Comment
POM313219
Crypsis schoenoides
H. L. Mason
1945-7-11
12642
Colusa
Alkali plains near Butte Creek; Butte Lodge Outing Club, three miles above Colusa
Comment
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
UC1259361
Crypsis schoenoides
Barry Hammel
1976-8-5
427
Colusa
e side of Hwy 45 near Colusa Golf Club
30
Comment
CHSC115632
Crypsis schoenoides
David Isle; Rhonda Isle
2014-9-27
2145
Colusa
Northern Sacramento Valley foothills: W side East Park Reservoir, ~0.3 mi S of boatlaunch; within ~ 20 yards of normal lake edge in drying clay soil. (Gilmore Peak California: 10S -0541629E, 4355225N).
353
Comment
CAS-BOT-BC190166
Crypsis vaginiflora
H. S. Yates
1936-8-14
6131
Colusa
3 miles south of Colusa.
15
Comment
POM198510
Crypsis vaginiflora
Roxana Stinchfield
1916-7-11
466
Colusa
Davis Tule, near Sycamore Slough.
Comment
POM313168
Crypsis vaginiflora
H. L. Mason
1945-7-11
12643
Colusa
Near Butte creek; Butte Lodge Outing Club, 3 miles above Colusa.
Comment
RSA126602
Crypsis vaginiflora
H. S. Yates
1936-8-14
6131
Colusa
Three miles south of Colusa.
15
Comment
UC1131372
Crypsis vaginiflora
H. S. Yates
1936-8-14
6131
Colusa
3 mi s Colusa; Colusa Quadrangle
15
Comment
UCD59989
Crypsis vaginiflora
H. S. Yates
1936-8-14
6131
Colusa
3 miles south of Colusa.
15
Comment
HSC45712
Cryptantha affinis
Sheila Logan
1978-4-22
77
Colusa
Bear Valley Rd., 1.5 mi. from its junction with Hwy. 20
412
Comment
SEINET4206983
Cryptantha clevelandii var. dissita
D. W. McNeal
1982-5-2
2632
Colusa
On a rd. bank above Hwy. #20 at the Lake-Colus Co. line.; 0
Comment
UC79296
Cryptantha excavata
Katharine Brandegee
Colusa
Stites [Sites], Colusa Co.
Comment
HSC45735
Cryptantha flaccida
M. Alcasas
1978-4-22
43
Colusa
Bear Valley Rd., 1.5 mi. from its junction with Hwy. 20
412
Comment
JEPS16202
Cryptantha flaccida
Rimo Bacigalupi and Arthur Holmgren
1950-4-26
3168
Colusa
8 mi nw Maxwell (along road to Sites, canyon through first hills on extreme w edge of the Sacramento Valley); Sacramento Valley
Comment
JEPS81272
Cryptantha flaccida
L. R. Heckard and J. C. Hickman
1982-7-5
5882
Colusa
s of (slope below area) Summit Springs (s side of Snow Mt.); Snow Mt.
1500
Comment
JEPS90300
Cryptantha flaccida
Dean W. Taylor
1992-4-16
12408
Colusa
on hillsides 0.4 mi due w from spillway into Little Stony Creek (East Park Reservoir); Inner North Coast Range, East Park Reservoir
411
Comment
UCR206891
Cryptantha flaccida
George K. Helmkamp, E. A. Helmkamp
2009-3-11
14362
Colusa
Inner North Coast Range Foothills, along CA-20, 9.7 miles southwest of Williams, on the north side of Salt Creek
162
Comment
UC971694
Cryptantha hispidula
Leo F. Koch
1940-4-29
936 a
Colusa
near Colusa and Lake county line (along Highway 20, Williams Highway)
Comment
UCD163229
Cryptantha hispidula
Craig D. Thomsen
2000-4-28
2532
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
SEINET7883435
Cryptantha hispidula
Leo Koch
1940-1
936 a
Colusa
Serpentine hill near Lake and Colusa county line along Highway 20, Williams Highway
Comment
CHSC146
Cryptantha intermedia
V. Holt
1935-5-17
Colusa
Stonyford.
Comment
JEPS67655
Cryptantha intermedia
W. L. Jepson
1932-5-8
16291
Colusa
n of Stonyford
365
Comment
RSA128429
Cryptantha intermedia
Robert F. Hoover
1941-5-2
4984
Colusa
Just east of Lake County line on Williams-Clear Lake Highway.
Comment
UC1212064
Cryptantha intermedia
Ethel Crum
1938-5-8
2027
Colusa
3 mi n Leesville; Inner North Coast Range
Comment
UCD63120
Cryptantha intermedia
Ellen Dean; G. Harrington, C. Thomsen, S. Harrison
2008-5-18
4950
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
UCR80860
Cryptantha intermedia
G. Fred Hrusa
1993-5-2
10865
Colusa
Frenzel Creek Research Natural Area, Mendocino National Forest. Point of ridge on south side of mouth of Frenzel Creek at confluence with Little Stony Creek.
450
Comment
UCD37192
Cryptantha intermedia
Beecher Crampton
1958-5-19
4820
Colusa
Colusa County, 4-8 miles south of Lodoga, Little Stony Creek Canyon.
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
UC763256
Cryptantha nemaclada
R. F. Hoover
1938-4-24
3229
Colusa
ridge between Venado and Leesville
Comment
UC78651
Cryptantha nemaclada
Katharine Curran
1884-1
Colusa
Comment
UCR212290
Cryptantha torreyana
Ellen Dean, Davis Botanical Society
2008-5-31
5008
Colusa
West of I-5 at Maxwell, east slope of Goat Mountain, along Goat Mountain Road, Cedar Grove Campground
1312
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
RSA388860
Cupressus macnabiana
Linda Bell
1975-4-20
63
Colusa
Walker Ridge Road ca. 7 miles from the junction with State Highway 20
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
UCD81892
Cuscuta californica var. californica
Ellen Dean; Bear Creek Ranch Grazing Committee
2009-6-19
5776
Colusa
BLM Bear Creek (formerly Payne) Ranch. Lands to the SW of the junction of Hwys 16 and 20. SW of Roadkill Cafe near stock pond.
429
Comment
RSA313623
Cycladenia humilis
Brandegee
1892-6-23
s.n.
Colusa
Snow Mountain
Comment
CHSC32212
Cycladenia humilis var. humilis
James Jokerst
1980-8-7
1063
Colusa
North Coast Ranges. Near Snow Mountain (West).
Comment Read comments Jun 8 2007
UCD150721
Cycladenia humilis var. humilis
Susan Harrison
2011-8-8
s.n.
Colusa
California, Colusa County. Snow Mountain. Along trail to Summit Basin.
1920
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
UC1177894
Cynoglossum grande
Peter M. Ray
1950-4-16
1731 b
Colusa
junction of N. Fork and Big Stony Creek (n. side of canyon)
Comment
CHSC112020
Cynoglossum grande
David Isle
1977-4-5
2069
Colusa
Mendocino National Forest. About 1.3 mile NE of Fouts Springon Upper Davis Flat.
493
Comment
POM185713
Cyperus acuminatus
Roxana Stinchfield
1916-7-11
465
Colusa
Davis Tule, near Sycamore Slough.
Comment
UC837462
Cyperus acuminatus
Roxana Stinchfield
1916-7-11
465
Colusa
Davis Tule near Sycamore Slough
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
JEPS110388
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
RSA40155
Cyperus difformis
J. T. Howell
1944-7-18
19838
Colusa
3 miles west of Williams
30
Comment
UC1100547
Cyperus difformis
Herbert L. Mason and Verne Grant
1946-8-7
12983
Colusa
8 mi. n. Colusa (Butte Sink); Butte Sink
Comment
UC710614
Cyperus difformis
John Thomas Howell
1944-7-18
19838
Colusa
3 mi. w. Williams
30
Comment
UCD141015
Cyperus difformis
P. B. Kennedy
1922-5-30
s.n.
Colusa
Cortena.
Comment
UCD141018
Cyperus difformis
Herbert L. Mason; Verne Grant
1946-8-7
12983
Colusa
8 miles north of Colusa.
Comment
CHSC94430
Cyperus eragrostis
Lowell Ahart
2006-8-22
13209
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
347
Comment
UC1100527
Cyperus eragrostis
Herbert L. Mason and Verne Grant
1946-9-5
13117
Colusa
1.6 mi. w. Williams (rd. to Lake Co.)
Comment
JEPS64102
Cyperus erythrorhizos
W. L. Jepson
1929-10-1
15342
Colusa
Maxwell
25
Comment
UC1100515
Cyperus erythrorhizos
Herbert L. Mason and Verne Grant
1946-8-13
13012
Colusa
2 mi. w. Colusa (on Williams hwy. by gridge); Butte Sink
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
RSA523855
Cyperus erythrorhizos
W. L. Jepson
1929-10-1
15342
Colusa
Maxwell
26
Comment
UC1100663
Cyperus odoratus
Herbert L. Mason
1945-9-19
12721
Colusa
1 mi. n. Colusa (e. bank of Sacramento R., below causeway over Butte Sink spillway); Sacramento R.
Comment
POM313066
Cyperus strigosus
S. Galen Smith
1949-9-9
1871
Colusa
Rice fields 3 miles west of Williams
Comment
JEPS120794
Cypselea humifusa
Lowell Ahart
2013-10-1
19073
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
CAS-BOT-BC445505
Damasonium californicum
J. Clausen
1935-5-20
1017
Colusa
Ca. 27 mi. W. of Williams after passed the Wilbur Springs road. Along Bear Creek
Comment
CAS-BOT-BC445506
Damasonium californicum
J. Clausen
1935-5-20
1017
Colusa
Ca. 27 mi. W. of Williams after having passed the Wilbur Springs road. Along Bear Creek
Comment
CAS-BOT-BC445507
Damasonium californicum
J. Clausen
1935-5-20
1017
Colusa
Ca. 27 mi. W. of Williams after having passed the Wilbur Springs road. Along Bear Creek
Comment
POM208489
Damasonium californicum
H. M. Hall
1916-8-10
10265
Colusa
Sacramento Valley.
Comment
POM231094
Damasonium californicum
Jens Clausen
1935-5-20
1017
Colusa
Ca. 27 mi W of Williams after having passed the Wilbur Springs road. Along Bear Creek.
Comment
RSA91938
Damasonium californicum
Beecher Crampton
1953-4-29
1148
Colusa
7 miles E of Maxwell.
Comment
CDA20254
Datisca glomerata
G. D. Barbe, Nola Parmer
1982-6-4
3636 A
Colusa
North Coast Ranges; Goat Mountain Road 8.7 mi w of Ladoga-Stonyford Rd, along Little Stony Creek, 1.2 mi w of Little Stony Creek bridge. Stonyford Ranger District, Mendocino National Forest.
0
Comment
CDA41123
Datura ferox
F. F. Swim
1959-6-18
2919
Colusa
0
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
CHSC94514
Datura wrightii
Lowell Ahart
2006-8-22
13205
Colusa
At the intersection of Sites Lodoga Road and a dirt road to Elk Creek, about 1 1/2 miles (air) east of East Park Reservoir, about 4 1/2 miles (air) northeast of Lodoga.
545
Comment
RSA724817
Datura wrightii
L. Ahart
2006-8-22
13205
Colusa
At the intersection of Sites Lodoga Road and a dirt road to Elk Creek, about 1.5 miles (air) east of East Park Reservoir, about 4.5 miles (air) northeast of Lodoga.
546
Comment
JEPS81326
Daucus pusillus
L. R. Heckard and J. C. Hickman
1982-7-6
5941
Colusa
ca. 1/2 mi. n.e. Summit Springs (e. of trail, s. side Snow Mt.); Snow Mt.
1645
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
HSC86893
Delphinium hesperium
Pat Daly, Rudy Galindo
1988-4-17
58
Colusa
5.2 mi. S of Bear Valley Rd.
390
Comment
UCD163887
Delphinium hesperium
Craig D. Thomsen
2002-4-12
2439
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
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
UC1607881
Delphinium hesperium subsp. pallescens
C. G. Nast
1936-4-17
144
Colusa
Williams to Lake county Highway
Comment
UCD64411
Delphinium hesperium subsp. pallescens
Craig D. Thomsen
2000-4-12
2138
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
HSC45441
Delphinium hesperium subsp. pallescens
M. Alcasas
1978-4-23
58
Colusa
Bartlett Springs Rd., 0.5 mi. from junction with Bear Valley Rd
457
Comment
HSC87027
Delphinium hesperium subsp. pallescens
Terry Hines, Ellen Purcell, N. Williams
1988-4-16
55
Colusa
4.2 mi. W on Goat Mtn. Rd., along Stony Creek 0.5 mi. W of Digger Pine Campground
450
Comment
JEPS6254
Delphinium hesperium subsp. pallescens
W. L. Jepson
1932-5-7
16261
Colusa
Venado (2 mi. above, in a little valley), Southwestern Colusa County
304
Comment
HSC25000
Delphinium nudicaule
M. Dole
1963-4-15
60
Colusa
7 mi. S of junction of Hwy. 16 and Hwy 20 on Hwy. 16
Comment
HSC72154
Delphinium patens
J. P. Smith, Thomas W. Nelson, Jane P. Nelson
1978-4-2
9567
Colusa
Bear Valley Rd., 2.1 mi. from its junction with Hwy. 20
366
Comment
CHSC46049
Delphinium variegatum
June McCaskill
1962-5-2
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
UCD163691
Delphinium variegatum
Craig Thomsen
1999-4-27
1993
Colusa
Bear Valley. About 6 miles north of Hwy 20, west of Bear Valley Rd.
Comment
POM174567
Delphinium variegatum
Roxana S. Ferris
1926-4-23
6582
Colusa
2 miles from Stony Ford.
Comment
UCD14295
Delphinium variegatum
R. Schulhof
1984-4-21
10
Colusa
Colusa Co.; 9.8 miles north of Highway 20 on the east side Bear Valley Road;
381
Comment
UCD15287
Delphinium variegatum
Claire Warshaw
1985-4-13
7
Colusa
along Bear Valley Road, 8 miles norhtwest from intersection with highway 20;
390
Comment
UCD15434
Delphinium variegatum
Lisa Montang
1985-4-13
4
Colusa
Colusa Co.; Bear Valley, 8.6 miles north of Wilbur Springs Road and Highway 20 intersection;
390
Comment
CHSC86016
Delphinium variegatum subsp. variegatum
Jenny Marr; H. West, J. Lacey, C. Warren, N. Wight
1998-4-14
Colusa
Vicinity of Grapevine Creek, Antelope Valley, and Sites-Lodoga Road.
137
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
UCD57456
Delphinium variegatum subsp. variegatum
Ellen Dean; W. Murray, J. Alderson, B. Weiss, M. Starbuck
2007-4-7
3640
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.
308
Comment
SEINET3927152
Deschampsia cespitosa
Fred W. Hoffman
1944-7-13
1949
Colusa
Between Indian and Bear valleys, western.; 0
Comment
JEPS82284
Deschampsia cespitosa subsp. cespitosa
Roger Raiche
1982-3-20
20245
Colusa
Walker Ridge
Comment
CAS-BOT-BC192672
Deschampsia danthonioides
A. A. Heller
1902-5-1
5435
Colusa
Near College City
Comment
CHSC107946
Deschampsia danthonioides
B. Castro; L. Janeway
2011-4-27
1867
Colusa
Sacramento Valley. Extreme west edge of Sacramento Valley; 5 air mi NW of Maxwell, 0.8 mi southeast of Funks Reservoir and 0.3 mi northeast of Tehama-Colusa Canal. At SW end of vernally moist swale which extends northeast of large +- saline/alkaline wetland/ marsh, in drying vernal pool bottom.
48
Comment
CHSC85968
Deschampsia danthonioides
Jenny Marr; Heidi West, Joyce Lacey-Rickert, Caroline Warren
1998-5-8
Colusa
Vicinity of Sites and Antelope Valley.
91
Comment
UCD163856
Deschampsia danthonioides
Craig D. Thomsen
2001-4-26
2483
Colusa
Bear Valley. About 7 miles north of Hwy 20.
Comment
UCD82860
Deschampsia danthonioides
Gordon Harrington
2008-4-13
71
Colusa
BLM Payne Ranch. Just SW of the Hwy 20-Hwy 16 intersection, SW of the corral.
324
Comment
UCR212334
Deschampsia danthonioides
Craig D. Thomsen
2000-4-12
2163
Colusa
Bear Creek Botanical Management Area. Roadside shoulder of Hwy 20 (south side), 0.5 mi west of Hwy 20/16 intersection, (c. 0.3 mi. east of Hwy 20 'Vista Point').
345
Comment
JEPS75036
Deschampsia elongata
L. R. Heckard
1972-7-10
3109
Colusa
Trout Creek crossing of trail to Box Spring (Snow Mt.); Snow Mt.
1828
Comment
JEPS75873
Deschampsia elongata
L. R. Heckard
1974-9-9
3848
Colusa
just s.e. of Foutch Camp (Snow Mt.); Snow Mt.
1920
Comment
UC1950419
Deschampsia elongata
Barbara Ertter
1989-7-1
8609
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; NE-facing slope
Comment
CAS-BOT-BC402210
Dicentra chrysantha
A. A. Heller
1940-6-5
15713 a
Colusa
Near the foot of the grade east of Lodogo, on the Lodogo-Sites road
Comment
CHSC110819
Dicentra chrysantha
David Isle; Rhonda Isle
2013-5-19
2040
Colusa
Mendocino National Forest - North Coast Ranges Little Stony Creek Watershed. 0.1 mi W of Maxwell Grade Summit; Burned NW asp. S of Sites Lodoga Road.
548
Comment
SEINET12103160
Dicentra formosa
C. L. Abbott
1926-1
s.n.
Colusa
Colusa
Comment
UCR233440
Dichelostemma capitatum
George K. Helmkamp, E. A. Helmkamp
2011-4-1
17128
Colusa
Eastern Foothills North Coast Ranges, Antelope Valley, along Maxwell-Sites Road, 0.4 miles southeast of Sites
93
Comment
CHSC81331
Dichelostemma capitatum subsp. capitatum
J. Trizzino
2001-3-31
17
Colusa
Bear Valley Meadow along east side of Bear Valley Road.
396
Comment
HSC31395
Dichelostemma capitatum subsp. capitatum
Maralyn O'Meara, Gary S. Lester
1974-5-4
350
Colusa
Walker Ridge Rd., 0.7 mi. from junction with Little Indian Valley Rd.
854
Comment
HSC31718
Dichelostemma capitatum subsp. capitatum
Teresa Prendusi
1974-5-4
50
Colusa
Beyond Clyde Mine 1/8 mi.
854
Comment
HSC45714
Dichelostemma capitatum subsp. capitatum
Sheila Logan
1978-4-2
69
Colusa
Bear Valley Rd., 1.5 mi. from its junction with Hwy. 20
412
Comment
SD72213
Dichelostemma congestum
Eugene Memmler
1969-5-8
105
Colusa
Between Williams and Clear Lake, Highway 20. Coastal valley hills.
152
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
CHSC32197
Dieteria canescens var. shastensis
James Jokerst
1980-8-8
1084
Colusa
North Coast Ranges. Near Snow Mountain (west).
Comment
CAS-BOT-BC152171
Diplacus bolanderi
A. A. Heller
1940-6-7
15720
Colusa
Slope below the road on the Lodogo-Sites Road near the passing into low ground east of Lodogo
Comment
CHSC29758
Diplacus tricolor
K. R. Stern
1980-5-5
6626
Colusa
South central border area of Colusa National Wildlife Refuge.
45
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
CAS-BOT-BC208651
Distichlis spicata
A. A. Heller
1902-5-19
5569
Colusa
Near Colusa.
Comment
CHSC114987
Distichlis spicata
Lowell Ahart
2015-5-5
20116
Colusa
On the north side of Maxwell-Colusa Road, about 5 1/2 miles east of Maxwell.
53
Comment
CHSC29761
Distichlis spicata
K. R. Stern
1980-6-30
6647
Colusa
Vernal pool, south central border area of Colusa National Wildlife Refuge.
45
Comment
JEPS104128
Distichlis spicata
Lowell Ahart
2003-8-15
10508
Colusa
Rd (disked) that bordered a rice field, on the south side of Highway 20, ca 1 mi sw of Williams.
27
Comment
UCD64348
Distichlis spicata var. stricta
K. Esau
1932-6-29
Colusa
Sutter Basin, near Colusa.
Comment
SEINET10831144
Distichlis spicata var. stricta
A. Arthur Heller
1902-5-19
Heller 5569
Colusa
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
UCD56911
Dodecatheon hendersonii
Ellen Dean; Gordon Harrington and Kate Mawdsley
2007-3-30
3514
Colusa
BLM Payne Ranch. Southwest of intersection of Hwy. 16 and Hwy. 20. In Craig Canyon.
318
Comment
CHSC60673
Downingia insignis
Vernon H. Oswald
1993-4-14
5264
Colusa
N side of O'Hair Rd., just E of the headquarters buildings, Colusa National Wildlife Refuge, SW of Colusa.
18
Comment
JEPS18023
Downingia insignis
George B. Rossbach
1955-4-9
512
Colusa
3 mi e Maxwell; Sacramento Valley
18
Comment
UC1609312
Downingia insignis
Vernon H. Oswald and Lowell Ahart
1993-5-27
5428
Colusa
ca 0.5 mi nw Sites (Sites-Lodoga Rd, Sacramento Valley); Sacramento Valley
121
Comment
UC76662
Downingia insignis
Miss M. Alice King
1905-1-1
Colusa
near College City; Sacramento Valley
Comment
UCD18837
Downingia insignis
Vernal Pool Team 2001; Carol Witham and Jennifer Buck
2001-4-30
144
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
UCD55041
Downingia insignis
Herbert L. Mason
1953-4-5
14506
Colusa
Three miles east of Maxwell.
Comment
UC2048629
Downingia pulchella
Lisa Schultheis with Ewald Weber
1995-6-3
203 -95
Colusa
Bear Valley.
Comment
CAS-BOT-BC159697
Drymocallis glandulosa var. glandulosa
H. H. Keifer
1928-5-2
s.n.
Colusa
North Peak, Marysville Buttes
Comment
UCD81238
Dudleya cymosa
Ellen Dean; G. Harrington, R. Willmarth, B. Rice, and C. Thomson
2009-4-8
5402
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.
223
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
JEPS120799
Dysphania ambrosioides
Lowell Ahart
2013-10-1
19088
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
CHSC112645
Dysphania botrys
Lowell Ahart
2013-10-1
19087
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
JEPS120637
Dysphania botrys
Lowell Ahart
2013-10-1
19087
Colusa
Strand of East Park Reservoir, about 2.5 air miles southeast of Stonyford, about 2.5 miles northwest of Lodoga, about 10 air miles northwest of Sites.
Comment
CHSC94418
Echinochloa crus-galli
Lowell 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
UC1100257
Echinochloa crus-galli
Malcolm A. Nobs and S. Galen Smith
1949-9-9
1874
Colusa
3 mi w Williams; w of Williams
Comment
UCD60930
Echinochloa crus-galli
P. B. Kennedy
1928-9-15
Colusa
Cortena. Rice station.
Comment
UCD61166
Echinochloa oryzicola var. mutica
P. B. Kennedy
1928-9-15
Colusa
Rice Station, Cortena.
Comment
UCD61169
Echinochloa oryzoides
Hursh
1919-11-12
X 3342
Colusa
Williams.
Comment
UCD61179
Echinochloa oryzoides
Beecher Crampton
1963-9-9
6893
Colusa
1/4 mile E of Cortena.
Comment
UCD137951
Echinodorus berteroi
C. F. Dunshee
1922-1
3
Colusa
Cortina.
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
UC1192126
Eclipta prostrata
Herbert L. Mason
1945-9-19
12725
Colusa
below causeway over Butte Sink spillway, e bank of Sacramento River, 1 mi n Colusa; Sacramento River, Butte Sink spillway
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
HSC60471
Ehrendorferia chrysantha
J. P. Smith
1977-4-24
9038
Colusa
Along Walker Ridge Rd. above Barrel Springs Campground
701
Comment
UCD95151
Ehrendorferia chrysantha
K. Esau
1934-5-5
s.n.
Colusa
above Williams, Tahoe-Ukiah Highway.
Comment
UC1101544
Elatine ambigua
Malcolm A. Nobs and S. Galen Smith
1949-9-10
1892
Colusa
17 mi n Knights Landing (rice fields)
Comment
UC1245141
Elatine ambigua
June McCaskill
1954-8-9
357
Colusa
ca 2 mi e Princeton (300 yards s of Glenn Co. line)
Comment
UCD66936
Elatine rubella
Ellen Dean; G. Harrington, J. Alderson, E. Bayon, R. Willmarth
2008-6-8
5085 -a
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
CAS-BOT-BC113364
Eleocharis engelmannii
Malcom A. Nobs; Stanley Galen [S. Galen] Smith
1949-7-18
1006
Colusa
West of Williams, 2.5 miles.
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
SD225710
Eleocharis macrostachya
Carol Witham, Jennifer Buck
2001-4-30
156
Colusa
2 miles south of the town of Clusa alng Hwy 20, east of Hwy 20 and the Colusa Airport, Dolan Ranch site, pool # DOL001
Comment
UCD57106
Eleocharis macrostachya
Gordon Harrington; Diana Hickson
2007-4-7
0026
Colusa
Colusa Co. Ca. BLM Payne Ranch, SW intersection of Hwy 16 and Hwy 20, .25 m NW of Roadkill Cafe.
427
Comment
UCD163346
Eleocharis parishii
Craig D. Thomsen
2000-5-11
2352
Colusa
Walker Ridge. Buck Flat.
129
Comment
UCD61458
Eleocharis parishii
Ellen Dean; G. Harrington, N. Voegtly, J. Alderson, C. Thomsen
2007-6-24
3904
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
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
UCD61690
Elymus elymoides subsp. californicus
D. Sanchez-Mata
1998-7-9
s.n.
Colusa
Bear Valley. Destanella Flat-Walker Ridge.
450
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
CHSC94631
Elymus glaucus subsp. glaucus
Lowell Ahart
2006-6-11
12671
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
JEPS75758
Elymus glaucus subsp. glaucus
L. R. Heckard and R. Bacigalupi
1976-9-6
4441
Colusa
just e Fouts Camp; Snow Mtn.
1859
Comment
UCD72393
Elymus glaucus subsp. glaucus
Ellen Dean; G. Harrington, J. Alderson, E. Bayon, R. Willmarth
2008-6-8
5119
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
JEPS76114
Elymus multisetus
W. L. Jepson
1938-6-11
18989
Colusa
4 mi se Wilbur Springs; Bear Creek
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
UCD84516
Elymus trachycaulus
Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk
2010-6-2
6067
Colusa
Colusa County. On Lake County border. Walker Ridge. Along Walker Ridge Road. Buck Flat.
872
Comment
JEPS110251
Elymus trachycaulus subsp. trachycaulus
Lowell Ahart
2006-6-11
12671
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
HSC48169
Emmenanthe penduliflora
Thomas W. Nelson, Jane P. Nelson
1978-4-29
3933
Colusa
Along Bear Valley Rd., 2 mi. from the junction with State Route 20.
366
Comment
UC1051707
Emmenanthe penduliflora
Helen K. Sharsmith
1953-7-1
4406
Colusa
Trough Springs Ridge; Inner North Coast Ranges, Mendocino National Forest
609
Comment
UC1609171
Emmenanthe penduliflora
Vernon H. Oswald and Lowell Ahart
1993-5-27
5431
Colusa
Sites-Lodoga Rd. ca. 0.4 mi W of Grapevine Pass (4.6 rd mi e of Lodoga)
481
Comment
CDA40328
Emmenanthe penduliflora
D. Brown
1974-8-8
s.n.
Colusa
Mendocino National Forest, Stonyford.
0
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
UCD105385
Epilobium brachycarpum
P. B. Kennedy
30-31 May 1922
s.n.
Colusa
Near Colusa.
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
JEPS75838
Epilobium canum subsp. latifolium
L. R. Heckard
1974-9-11
3954
Colusa
along Summit Springs trail Snow Mt.; , Summit Springs trail
1737
Comment
JEPS75755
Epilobium ciliatum subsp. glandulosum
L. R. Heckard and R. Bacigalupi
1976-9-6
4437
Colusa
trail crossing Snow Mt., Trout Creek
1828
Comment
JEPS110108
Epilobium densiflorum
Lowell Ahart
2006-8-9
13140
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford
347
Comment
JEPS75736
Epilobium densiflorum
L. R. Heckard
1974-9-9
3878
Colusa
about 1/4 mi e Foutch Camp
1828
Comment
CHSC115385
Epilobium minutum
Lowell Ahart
2015-4-1
19998
Colusa
Near a 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
CHSC94885
Epilobium minutum
Lowell Ahart
2006-6-11
12679
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
JEPS124235
Epilobium minutum
Lowell Ahart
2015-4-1
19998
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
UC638657
Epilobium minutum
Ethel Crum
1938-5-8
2026
Colusa
3 mi n Leesville; Inner North Coast Range
Comment
CHSC94473
Epilobium torreyi
Lowell Ahart
2006-8-9
13117 A
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
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
UC188873
Eragrostis hypnoides
H. P. Chandler
1905-9-14
Colusa
Princeton
Comment
JEPS127604
Eragrostis hypnoides
David Isle with Rhonda Isle
2014-9-27
2143
Colusa
W side of East Park Reservoir, ca 0.3 miles S of boat launch, ca 100 yards E of normal lake edge.
Comment
UC17609
Eremocarpus setiger
J. Burtt Davy
May, 1898
4285
Colusa
near Princeton
Comment
UCR261668
Eriastrum abramsii
Ann Howald
2003-5-29
2345
Colusa
Inner North Coast Ranges, Indian Valley, east side of East Park Reservoir, c. 3.1 miles north of Lodoga, near shore of reservoir
370
Comment Read comments Dec 15 2016
UCR261751
Eriastrum abramsii
Ann Howald
2003-5-29
2350
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
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
RSA14917
Ericameria linearifolia
L. S. Rose
1934-3-13
34054
Colusa
2 miles E Clayton.
Comment Read comments Jul 30 2014
CAS-BOT-BC298294
Ericameria nauseosa var. speciosa
Peter H. Raven
1959-9-11
14416
Colusa
0.5 mile S of Snow Mt
1920
Comment
JEPS75829
Ericameria nauseosa var. speciosa
L. R. Heckard
1974-9-9
3837
Colusa
trail up from Summit Springs, Snow Mt., Colusa-Lake County line Snow Mt.
1645
Comment
JEPS73515
Erigeron petrophilus var. petrophilus
L. R. Heckard
1972-7-10
3133
Colusa
overlooking and 3 mi nw Fouts Springs (se corner of Snow Mt.); Snow Mt.
1828
Comment
JEPS80811
Erigeron petrophilus var. petrophilus
L. R. Heckard and J. C. Hickman
1981-7-31
5784
Colusa
e side Snow Mt. (rock promontory called Fouts Springs Overlook); , Fouts Springs Overlook
1798
Comment
CHSC77302
Erigeron sumatrensis
Heidi West; Joyce Lacey-Rickert
1998-10-29
Colusa
Vicinity of Antelope Valley and Sites.
109
Comment
CAS-BOT-BC216002
Eriodictyon californicum
Roxana S. Ferris
1926-4-23
6431 A
Colusa
Near summit of grade on Williams - Stonyford Road
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
CAS-BOT-BC216050
Eriodictyon californicum
Roxana Stinchfield
1916-6-17
278
Colusa
Cemetery, College City
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
RSA60348
Eriodictyon californicum
G. R. Campbell
1948-6-18
649
Colusa
2 miles south of Wilbur Springs.
Comment
CHSC112641
Eriogonum dasyanthemum
Lowell Ahart
2013-10-1
19066
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 miles (air) east-northeast of Clear Lake (town), 17.1 miles (air) west of Williams.
566
Comment
CHSC94726
Eriogonum dasyanthemum
Lowell Ahart
2006-6-11
12680
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
HSC94132
Eriogonum dasyanthemum
G. Fred Hrusa
1998-10-28
14904
Colusa
Along summit of Walker Ridge
900
Comment
JEPS57027
Eriogonum dasyanthemum
W. L. Jepson
1920-5-23
8962
Colusa
grade above Venado
Comment
RSA0118881
Eriogonum dasyanthemum
Lowell Ahart
2013-10-1
19066
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
UCD13221
Eriogonum dasyanthemum
Charles Martin
1986-5-17
28
Colusa
California: Colusa Co. Along Sites-Lodoga Rd, 8.2 mi W of Sites.
Comment
UCR44922
Eriogonum dasyanthemum
L. F. LaPre
1986-5-30
s.n.
Colusa
1.5 mi west of Mendocino National Forest Boundary on Stony Creek Rd [c. 4 mi. west of Stonyford]
671
Comment
CAS-BOT-BC242580
Eriogonum dasyanthemum
James L. Reveal
1988-6-2
6985
Colusa
Walker Ridge Road along the Lake County line, 3.3 miles north of the turnoff to Jordan Valley Dam and 0.2 mile south of the summit of the road, about 9 miles north of California Highway 20 and 7 miles south of the Bartlett Springs Road
1082
Comment
RSA0115043
Eriogonum dasyanthemum
Lyman Benson
1948-7-16
12922
Colusa
Road between Williams and Clear Lake just east of Lake Co. line. Mt. Range: Inner North Coast.
548
Comment
JEPS73500
Eriogonum luteolum var. luteolum
L. R. Heckard
1972-7-10
3118
Colusa
trail to Box Springs near Trout Creek crossing; Snow Mt., Trout Creek
1828
Comment
UCR88380
Eriogonum luteolum var. luteolum
Arthur M. Shapiro
1988-8-24
s.n.
Colusa
Mendocino National Forest, Near Glenn Co. line, at Goat Mtn Lookout, just below summit of Goat Mtn
1866
Comment
CHSC32218
Eriogonum nervulosum
James Jokerst
1980-9-6
1055
Colusa
Near Snow Mountain (West).
Comment
UCD73924
Eriogonum nervulosum
G. Ledyard Stebbins
1966-6-6
6433
Colusa
Lovelady Ridge.
Comment
UCD55453
Eriogonum nudum
Ellen Dean; Gordon Harrington
2006-10-6
3277
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
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
UCD146700
Eriogonum nudum var. nudum
G. F. Hrusa
1998-10-28
14903
Colusa
Inner North Coast Ranges. Along Cedar Camp Road as it enters Little Stony Creek Canyon, approximately 1 mile from Lodoga/Stonyford Road.
400
Comment
UCD100642
Eriogonum nudum var. nudum
Arthur M. Shapiro
1988-8-24
s.n.
Colusa
near Glenn County Line, at Goat Mountain Lookout, just below summit of Goat Mountain. In Mendocino National Forest.
1865
Comment
JEPS56620
Eriogonum nudum var. pubiflorum
W. L. Jepson
1934-7-28
16750
Colusa
hills se Cortina Valley
Comment
RSA7561
Eriogonum prattenianum
Carl B. Wolf
1933-9-25
5497
Colusa
2 mi. W of Grass Valley on rd. to Rough and Ready. West slope of Sierra Nevada.
Comment Read comments Oct 30 2012
JEPS75856
Eriogonum spergulinum var. reddingianum
L. R. Heckard
1974-9-10
3894
Colusa
e ridge of East Peak, Snow Mt. Snow Mt.
2042
Comment
CHSC92619
Eriogonum strictum var. greenei
D. Isle
2005-8-1
1156
Colusa
Mendocino National Forest--North Coast Ranges. Little Stony Creek Watershed. In the saddle and ridge top 1/3 mile South of Goat Mountain lookout.
1804
Comment
UC1299713
Eriogonum tripodum
Freed W. Hoffman
1947-6-19
1618
Colusa
between Ladoga and Cook Springs
Comment
IRVC29686
Eriogonum umbellatum
Mark A. Elvin, Mark S. Brunell, David Isle
2006-8-3
5032
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
CHSC101098
Eriogonum umbellatum var. bahiiforme
D. Isle
2005-8-1
1155
Colusa
In the saddle and ridge top 1/3 mile south of Goat Mountain Lookout,
1804
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
UCD57823
Eriophyllum lanatum
Gordon Harrington
2007-4-17
34
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.
526
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
CDA15503
Eriophyllum lanatum var. achilleoides
G. F. Hrusa, WTD
1998-6-19
14640
Colusa
North Coast Ranges; Trough Springs ridge, immed. above (overlooking settlement) Fouts Springs.
Comment
UC896387
Eriophyllum lanatum var. achilleoides
A. A. Heller
1916-6-6
12353
Colusa
3 mi w of Leesville (on open gravelly slopes); Coast Range
Comment
UCD67054
Eriophyllum lanatum var. achilleoides
Craig D. Thomsen
2008-5-31
2760
Colusa
BLM Payne Ranch. Lands to the SW of Hwy 20/16 intersection. Along Hwy 16, ca. 1 mile south of Hwy 20. Near Cowboy Camp. 0.25 mile west of Bear Creek and public viewing area.
305
Comment
UCR233439
Eriophyllum lanatum var. achilleoides
George K. Helmkamp, E. A. Helmkamp
2011-4-1
17127
Colusa
Eastern Foothills North Coast Ranges, Antelope Valley, along Maxwell-Sites Road, 0.4 miles southeast of Sites
93
Comment
SEINET10673292
Eriophyllum lanatum var. achilleoides
Katherine L. Morris, Melvin L. Conrad; David B. Dunn
1973-6-6
Morris 375
Colusa
Chaparral woodland and sparse oaks; on Hwy. 20, 0.3 mi. E of Lake County line.
Comment
UCD132205
Eriophyllum lanatum var. achilleoides
Ted C. MacRae
1994-4-30
940430 -1
Colusa
1-1.5 miles northeast of junction of Hwys 20 and 16 along Bear Creek.
Comment
UCD70241
Eriophyllum lanatum var. grandiflorum
D. Sanchez-Mata
1998-7-9
s.n.
Colusa
Bear Valley. Destanella Flat-Walker Ridge.
450
Comment
UC35202
Erodium cicutarium
J. Burtt Davy
May 1898
4281
Colusa
near Willows
Comment
UC73462
Erodium macrophyllum
Miss M. Alice King
1905-1
Colusa
near College City; Sacramento Valley
Comment
SEINET8566769
Erodium moschatum
Richard R. Halse
2001-3-22
5943
Colusa
Williams, along vacant lot 455, 4th Street.
18
Comment
UCR238747
Erodium moschatum
George K. Helmkamp, E. A. Helmkamp
2012-2-9
18536
Colusa
Sacramento Valley, River Road, 7.1 miles north of Colusa; east side of Sacramento River
18
Comment
UCD82579
Eryngium aristulatum
Craig Thomsen
2008-6-12
2769
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
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
CHSC107284
Eryngium vaseyi var. vallicola
L. P. Janeway; B. Castro
2011-7-9
10506
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.
50
Comment
CDA12013
Erysimum capitatum
G. F. Hrusa
1990-4-8
7665
Colusa
North Coast Biodiversity Arena; Road into Bear Valley from the S, passing Wilbur Springs, and originating at Hwy. 20.
Comment
CDA21063
Erysimum capitatum
G. F. Hrusa
1993-5-2
10856
Colusa
North Coast Ranges; Frenzel Creek Research Natural Area, Mendocino National Forest. Mouth of Frenzel Creek, tributary of Little Stony Creek.
Comment
HSC71302
Erysimum capitatum var. capitatum
Thomas W. Nelson, Jane P. Nelson
1979-4-12
4624
Colusa
Along Stony Creek below Digger Pine Campground
Comment
CHSC94447
Erythranthe cardinalis
Lowell Ahart
2006-8-9
13157
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
347
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
CAS-BOT-BC402661
Eschscholzia caespitosa
Mrs. H. C. Cantelow
1936-4-11
s.n.
Colusa
Bear Creek Canyon
Comment
CHSC100950
Eschscholzia caespitosa
Rodney Lacey
2008-4-1
Colusa
Inner North Coast Ranges. Little Stony Creek; on private dirt road adjacent to Goat Mountain Road, near Lodoga-Stonyford Road, approximately 3.2 km west of Lodoga.
398
Comment
UCD57300
Eschscholzia caespitosa
Ellen Dean; C. Thomsen, S. Bledsoe, J. Alderson, M. Starbuck
2007-4-7
3671
Colusa
BLM Payne Ranch. Lands to the southwest of junction of Hwy. 20 and Hwy. 16. Thompson Canyon, near juncture with Craig Canyon. Above Thompson Creek.
366
Comment
UCD82626
Eschscholzia caespitosa
Craig Thomsen; G. Harrington
2009-5-12
2896
Colusa
Colusa County on Walker Ridge: from spur road about 1/2 mile east of Walker Ridge Road, en route to Eaton Springs.
813
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
JEPS51725
Eschscholzia californica
Alice King
June 1906
Colusa
College City
Comment
CAS-BOT-BC402976
Eschscholzia californica
A. A. Heller
1919-5-10
13115
Colusa
Valley west of Leesville
Comment
CAS-BOT-BC402977
Eschscholzia californica
A. A. Heller
1919-5-10
13115
Colusa
Valley west of Leesville
Comment
CAS-BOT-BC402978
Eschscholzia californica
Roxana S. Ferris
1917-4-14
603
Colusa
3 mi west of Arbuckle, Arbuckle - Rumsey Road
Comment
CAS-BOT-BC5884
Eschscholzia californica
Townsend Stith Brandegee
1889-4-1
s.n.
Colusa
unspecified
Comment
UC85498
Eschscholzia caruifolia
K. Brandegee
Apr 1889
Colusa
Colusa County. Near Leesville.
Comment
CHSC42185
Eschscholzia lobbii
S. A. Zaitz
1986-4-5
11
Colusa
Ca. 0.3 mi w of jct. of Hwys 20 and 16, s side of Bear Ck, ca. 18 mi sw of Williams.
321
Comment
CHSC115331
Euphorbia crenulata
Lowell Ahart
2015-4-10
20011
Colusa
In a small meadow, 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
CHSC59969
Euphorbia spathulata
J. M. Tucker
1978-5-6
4407
Colusa
In field on east side of Bear Valley Road, 10.6 miles (by road) north of junction with State Highway 20. Valley floor of Bear Valley.
381
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
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
UC71774
Euthamia occidentalis
H. P. Chandler
1905-9-14
Colusa
Princeton
Comment
UCD58122
Extriplex joaquinana
Ellen Dean; PLB 102 Class
2007-4-29
3718
Colusa
Payne Ranch. West of Hwy. 16. Ca. 2 road miles S of junction of Hwy. 20 and Hwy. 16. Near origin of Craig Canyon.
359
Comment
CHSC111694
Festuca arundinacea
David Isle; Rhonda Isle, Justin Isle
1988-5-22
2097
Colusa
Middle Fork Stony Creek Watershed. Field S of Pendell home, S of Fouts Springs Rd 18N01 (M10), 2 miles W of Co. Rd. 306 jct. w/Fouts Springs Road.
384
Comment
JEPS121258
Festuca microstachys var. ciliata
Lowell Ahart
2013-5-1
18689
Colusa
N of the wash and 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
UCD72474
Forestiera pubescens
Ellen Dean; J. Alderson, N. Voegtly, and C. Thomsen
2007-5-12
3808
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 south end of bridge, east side of creek.
252
Comment
JEPS118616
Frangula californica 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 Road ca 0.5 mi N of its junction with USFS Rd 16N06, 0.5 mi NE of Pacific Point. Hough Springs 7.5' quad.
Comment
UCD66952
Frangula californica subsp. crassifolia
Ellen Dean; Davis Botanical Society
2008-5-31
4996
Colusa
west of I-5 at Maxwell, along Goat Mountain Road following Little Stoney Creek, Little Stoney Creek Canyon.
414
Comment
CAS-BOT-BC62917
Frangula californica subsp. tomentella
C. Hart Merriam
1923-5-9
s.n.
Colusa
Stony Ford.
Comment
UCD112795
Frangula californica subsp. tomentella
D. Sanchez-Mata
1998-7-9
s.n.
Colusa
Lodoga-Stonyford. Mendocino National Forest. Goat Mountain Road between Lodoga and Red Rock Cabin. At Stoney Creek.
450
Comment
CHSC107939
Frankenia salina
B. Castro; Joe Silveira, Tom Boullion
2011-6-10
1886
Colusa
Sacramento Valley. Extreme west edge of Sacramento Valley; approximately 1 mi southeast of Funks Reservoir and 0.2 mi northeast of Tehama-Colusa Canal. In swale about 400 ft north of large +- alkaline marsh; off edges of whitish alkali bald.
49
Comment
CHSC46874
Frankenia salina
Vernon Oswald
1989-9-12
4011
Colusa
Maxwell-Colusa Rd 1.9 mi e of Maxwell, just w of Two-Mile Rd. On upper bank of roadside ditch.
33
Comment
RSA123211
Frankenia salina
H. S. Yates
1936-8-14
6135
Colusa
3 miles S. of Colusa
15
Comment
UCD81898
Frankenia salina
G. Harrington
2009-6-18
81
Colusa
BLM Bear Creek (formerly Payne) Ranch. Lands to the SW of the junction of Hwys 16 and 20. S end of Cowboy Camp. E side of Bear Creek.
307
Comment
UC1051743
Fraxinus dipetala
Helen K. Sharsmith
1953-6-20
4299
Colusa
Little Stoney Creek Inner North Coast Ranges, Mendocino National Forest
762
Comment
UCD163233
Fraxinus dipetala
Craig D. Thomsen
2000-4-12
2156
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
CHSC62852
Fritillaria affinis
Vernon H. Oswald; Lowell Ahart
1994-3-23
6013
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
UCSC010485
Fritillaria affinis
Dylan M. Neubauer, Tim Forsell
2016-3-31
598
Colusa
(NCoRI) Walker Ridge, Walker Ridge Road, 1.96 air-miles sse Cold Spring Mountain
820
Comment
UCD139660
Fritillaria agrestis
S. W. Winter
1927-3-9
751
Colusa
Arbuckle.
Comment
SEINET12058445
Fritillaria atropurpurea
M. A. Vincent, Rhode, R.
1996-1
Colusa
Comment
JEPS81409
Fritillaria glauca
L. R. Heckard and J. C. Hickman
1982-7-9
6016
Colusa
near junction of Horse Glade along road to Lookout, Goat Mountain Goat Mountain
1737
Comment
CAS-BOT-BC130433
Fritillaria pluriflora
James Jokerst
1985-4-10
2229
Colusa
Near Walker Ridge
Comment
JEPS100637
Fritillaria pluriflora
Dean W. Taylor
1992-4-16
12400
Colusa
East Park Reservoir, ca. 0.4 mi due W from spillway into Little Stony Creek Inner North Coast Range
411
Comment
JEPS89227
Fritillaria pluriflora
W. Roderick
1964-3-22
Colusa
1/2 mi e of summit of Lake County Line (on Highway 20 (Williams-Clear Lake)); Highway 20 (Williams-Clear Lake)
304
Comment
SJSU8654
Fritillaria pluriflora
E. O. Haas
1956-3-21
Colusa
Salt Cr area 10 mi SW of Arbuckle
Comment
UC765858
Fritillaria pluriflora
R. F. Hoover
1939-3-5
3901
Colusa
2 mi s of Stonyford
Comment
UCD148574
Fritillaria purdyi
G. Ledyard Stebbins
1985-5-19
C 531
Colusa
Southeast of Goat Mountain peak. Pacific Point along Goat Rock Ridge, east of Goat Rock. (Exact location unknown; coordinates estimated by label maker. Note, Pacific Point at 3700 ft does not quite fall into Section 25.)
1127
Comment
UCSC010483
Fritillaria purdyi
Dylan M. Neubauer, Tim Forsell
2016-3-31
599
Colusa
(NCoRI) Walker Ridge, Walker Ridge Road, 1.96 air-miles sse Cold Spring Mountain
820
Comment
HSC59112
Fritillaria purdyi
Terry Roth
1979-4-14
10
Colusa
1067
Comment
CDA15495
Fritillaria recurva
G. F. Hrusa, WTD
1998-6-19
14632
Colusa
North Coast Ranges; N side of Goat Mtn. summit area.
Comment
JEPS120712
Galium andrewsii subsp. andrewsii
Lowell Ahart
2013-10-1
19067
Colusa
Near a small drainage, north of the wash and State Highway 20, just east of Lake County line, 12.2 air miles ENE of the town of Clear Lake, 17.1 air miles west of Williams.
Comment
JEPS121119
Galium andrewsii subsp. andrewsii
Lowell Ahart
2013-5-1
18694
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
UCD57662
Galium andrewsii subsp. andrewsii
Hildegarde Durkin; 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 part of ranch. Thompson Canyon. North side of Thompson Creek.
377
Comment
JEPS52810
Galium andrewsii subsp. intermedium
Lauramay T. Dempster and G. L. Stebbins
1967-4-8
4357
Colusa
2.7 mi by road ne Lodoga (s-facing roadbank)
396
Comment
CHSC62945
Galium aparine
Vernon Oswald; Lowell Ahart
1994-4-6
6062
Colusa
Goat Mtn. Rd. at Sullivan Creek, 1.2 mi SW of Digger Pine Flat, S of Stonyford.
469
Comment
CDA14919
Galium bolanderi
G. F. Hrusa
1993-5-2
10860
Colusa
North Coast Ranges; Frenzel Creek Research Natural Area. Mendocino National Forest. Mid-canyon of Frenzel Creek.
Comment
JEPS75835
Galium bolanderi
L. R. Heckard
1974-9-11
3952
Colusa
along Summit Springs trail Snow Mt.
1798
Comment
CHSC91041
Galium grayanum var. nanum
D. Isle
2003-6-12
375
Colusa
Mendocino National Forest--North Coast Ranges. Little Stony Creek Watershed. On Colusa/Lake County line, 1/8 mi. SE of Goat Mt. Lookout.
1841
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
JEPS21477
Galium parisiense
Francia Chisaki and Gene B. Newcomb
1958-6-19
1134
Colusa
ca 3 mi w Stonyford (along path leading to the dam); Diversion Dam Camp
Comment
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
SEINET11117450
Galium parisiense
Unknown
1959-1
s.n.
Colusa
At Mill Creek crossing on road leading out of Red Bridge Camp, Colusa County.
Comment
UCD66527
Galium porrigens
Craig D. Thomsen
2000-4-28
2228
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.
Comment
UCD121911
Galium porrigens var. tenue
Elaine J. Imada
1971-4-10
15
Colusa
East side of ridge; Bear Valley, Walker Ridge.
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
CAS-BOT-BC199031
Garrya congdonii
C. Hart Merriam
1907-7-23
s.n.
Colusa
Cook Spgs.
Comment
CDA12373
Garrya congdonii
G. F. Hrusa
1996-1-2
12626
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
CHSC90682
Garrya flavescens
D. Isle
1996-3-12
1010
Colusa
Mendocino National Forest--North Coast Ranges. Little Stony Creek Watershed. Just west of Ruby King Mine.
426
Comment
CHSC94472
Gastridium phleoides
Lowell Ahart
2006-8-9
13171 A
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
347
Comment
UC73425
Geranium carolinianum
Miss M. Alice King
1905-1
Colusa
near Arbuckle (near College City); Sacramento Valley
Comment
CHSC87237
Gilia clivorum
B. Castro; Beth Hendrickson
2003-3-24
1399
Colusa
Vicinity of Sites, hills N of the Sites-Lodoga Rd, and Stone Corral Creek.
310
Comment
UC73637
Gilia clivorum
Miss M. Alice King
1905-1
Colusa
near College City (Sacramento Valley); , near College City
Comment
CHSC27514
Gilia tricolor
Michael F. Henetz
1978-4-15
10
Colusa
Field 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
322
Comment
UCD64267
Gilia tricolor
Craig D. Thomsen
2000-3-31
2065
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
HSC72769
Gilia tricolor
J. Krajanowski
1981-4-4
4
Colusa
.3 mi. W of junction of Hwy. 20 and Hwy. 16, S side of Bear Creek, 18 mi. SW of Williams
322
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
UCD14374
Gilia tricolor
L. Coats
1983-4-24
11
Colusa
Colusa Co.; in the hills at the south end of Bear Valley, along Bear Valley Road, 6.3 miles south of Bartlett Springs Road;
487
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
UC1614401
Githopsis
Charles M. Belshaw
1937-4-25
2835
Colusa
vicinity of Cook's Spring (Devil's Ridge); Inner N. Coast Range, Devil's Ridge
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
CHSC79484
Githopsis specularioides
B. Castro; L. P. Janeway
2000-5-4
1141
Colusa
Vicinity of Sites, Sites-Lodoga Rd, and Grapevine Creek.
248
Comment
HSC45716
Githopsis specularioides
Sheila Logan
1978-4-22
61
Colusa
Bear Valley Rd., 1.5 mi. from its junction with Hwy. 20
412
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
JEPS75872
Glyceria elata
L. R. Heckard
1974-9-9
3874
Colusa
se of Foutch Camp (just ne of rock promontory); Snow Mt.
1920
Comment
CHSC77335
Glycyrrhiza lepidota
Heidi West; Joyce Lacey-Rickert
1998-10-29
Colusa
Vicinity of Antelope Valley and Sites.
109
Comment
UCR225394
Gnaphalium californicum
Ellen Dean, Gordon Harrington, J. Alderson, E. Bayon, R. Willmarth
2008-6-8
5099
Colusa
BLM Payne Ranch, lands to the southwest of the junction 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
495
Comment
CHSC94475
Gnaphalium palustre
Lowell Ahart
2006-8-9
13124
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
347
Comment
POM53847
Grindelia camporum
Roxana Stinchfield
1916-7-11
455
Colusa
Willaims Road at the 'Trough'
Comment
CAS-BOT-BC305303
Grindelia hirsutula
Doris K. Kildale
1928-5-8
5018
Colusa
3 miles south of Arbuckle
Comment
JEPS113893
Grindelia hirsutula
L. P. Janeway
2007-6-17
9059
Colusa
Inner North Coast Ranges; Along Bear Valley Road and Bear Creek near Hwy 20.
325
Comment
CHSC97316
Grindelia hirsutula var. davyi
L. P. Janeway
2007-6-17
9059
Colusa
Inner North Coast Ranges. Along Bear Valley Road and Bear Creek near Hwy 20.
325
Comment
RSA0016943
Grindelia hirsutula var. davyi
C. B. Wolf
1928-5-8
2126
Colusa
3 miles S of Arbuckle, Pacific Hwy.
Comment
UC71636
Guillenia lasiophylla
Miss Alice King
1905-1
Colusa
College City
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
UCD37194
Hainardia cylindrica
Beecher Crampton
1958-5-19
4825
Colusa
Colusa County, 4 miles south of Maxwell, along U.S. Highway 99W.
Comment
UCD70228
Hainardia cylindrica
D. Sanchez-Mata
1998-6-24
s.n.
Colusa
Bear Valley. Bear Valley Road. Bear Valley Creek. Annual plant communities on serpentine temporal vernal pools.
370
Comment
UCD86148
Hainardia cylindrica
Beecher Crampton
1958-5-19
4825
Colusa
Colusa County, 4 miles south of Maxwell, along U.S. Highway 99W.
Comment
UCD85235
Hainardia cylindrica
D. Sanchez-Mata
1998-6-24
s.n.
Colusa
Bear Valley. Bear Valley Road. Bear Valley Creek.
370
Comment
UCD135766
Harmonia hallii
Bruce G. Baldwin
1986-4-13
599
Colusa
2.6 miles west of junction with Bear Valley Road along Bartlett Springs Road.
Comment
UCD159338
Harmonia hallii
D. S. Park; E. Dean
2010-6-5
122
Colusa
Walker ridge, Cold Spring Mt. Abundant by road.
692
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
UCD83819
Harmonia hallii
Ellen Dean; G. Harrington, K. Mawdsley, J. Shepard
2010-5-1
5966
Colusa
Walker Ridge on border of Lake and Colusa Counties. Along Walker Ridge Rd., just E of Barrel Springs area.
721
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
SACT000816
Heleochloa schoenoides
Herbert Mason
1945-7-11
Colusa
Alkali Plains three miles above Colusa.
Comment
UC194952
Helianthus bolanderi
H. M. Hall
1916-8-16
10267
Colusa
near Williams
Comment
UCD144347
Helianthus bolanderi
G. F. Hrusa
1998-10-28
14897
Colusa
Inner North Coast Ranges. Along Cedar Camp Road as it enters Little Stony Creek Canyon. Approximately 1/2 mile from Lodoga/Stonyford Road.
400
Comment
UCD163650
Helianthus bolanderi
Craig Thomsen
1998-6-10
1948
Colusa
Bear Valley. About 7 miles north of Hwy 20.
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
JEPS120804
Heliotropium curassavicum
Lowell Ahart
2013-10-1
19096
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
UC1552825
Heliotropium curassavicum
Frederica Bowcutt
1985-5-20
527
Colusa
10 air miles w. Williams (n.e. of Wilbur Springs ca. 7 mi., along Hwy. 20 and Salt Creek)
Comment
JEPS104401
Helminthotheca echioides
Lowell Ahart
2003-10-23
10661
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
UCD163661
Hemizonia congesta
Craig Thomsen
1998-6-10
1958
Colusa
Bear Valley. About 6 miles north of Hwy 20.
Comment
SD133786
Hemizonia congesta subsp. clevelandii
L. R. Heckard, J. C. Hickman
1980-9-15
5418
Colusa
Slopes west of Summit Springs, Snow Mountain.
1555
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
UCD55445
Hemizonia congesta subsp. luzulifolia
Ellen Dean; Gordon Harrington
2006-10-6
3270
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
UCD66696
Hemizonia congesta subsp. luzulifolia
Craig D. Thomsen
2000-6-23
2384
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
UCD72453
Hemizonia congesta subsp. luzulifolia
Ellen Dean; J. Alderson, N. Voegtly, and C. Thomsen
2007-5-12
3790
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. Near north end of bridge, west side of creek.
281
Comment
UCD70224
Hemizonia luzulifolia
D. Sanchez-Mata
1998-7-9
s.n.
Colusa
Bear Valley. Bear Valley Road. Bear Valley Creek. Annual grasslands growing on ultramafic soils.
370
Comment
UCR261648
Hesperevax caulescens
Ann Howald
2003-4-23
2314
Colusa
Inner North Coast Ranges, Indian Valley, East Park Reservoir, Catholic Point peninsula, east of Coppermine Road, c. 1.1 mi north of intersection with East Ruby King Road
403
Comment
CHSC83314
Hesperevax sparsiflora
Jenny Marr; Heidi West, Joyce Lacey-Rickert, Caroline Warren
1998-5-8
Colusa
Vicinity of Sites and Antelope Valley.
137
Comment
SD40656
Hesperocyparis sargentii
Carl B. Wolf, E. R. Johnson
1934-10-15
Colusa
Cook Springs (western part of county)
550
Comment
UCD82619
Hesperolinon
Craig Thomsen; G. Harrington
2009-5-12
2887 b
Colusa
Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd.
710
Comment
CAS-BOT-BC175982
Hesperolinon californicum
A. A. Heller
1916-6-6
12352
Colusa
Coast Range on the grade about 3 miles west of Leesville
Comment
UC1212449
Hesperolinon californicum
Helen K. Sharsmith
1953-6-17
4252
Colusa
1 mi n origin of Wilbur Springs road (near Hwy 20); Inner North Coast Ranges, Bear Creek drainage
365
Comment
UCD66457
Hesperolinon californicum
Craig D. Thomsen
2000-6-7
2362
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
UCD81215
Hesperolinon californicum
Ellen Dean; K. Mawdsley, B. Rice, G. Harrington, and J. Alderson
2009-5-6
5552
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. Top of ridge to the E of Destanella Flat.
578
Comment
UCR200666
Hesperolinon californicum
Craig D. Thomsen
2008-5-31
2759
Colusa
BLM Payne Ranch, southwest of intersection between Hwy 16 and Hwy 20, Cowboy Camp farea on the west side of Hwy 16, 1 mile south of Hwy 20, 0.25 mi. west of public viewing area and Bear Creek
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
UCD110515
Hesperolinon didymocarpum
D. Sanchez-Mata
1998-7-9
s.n.
Colusa
Bear Valley. Destanella Flat-Walker Ridge.
450
Comment
CHSC83165
Hesperolinon disjunctum
Beecher Crampton
1995-6-4
10323
Colusa
Colusa-Lake County Border: State Highway 20.
Comment
CHSC88554
Hesperolinon disjunctum
L. P. Janeway
2001-6-6
7128
Colusa
Inner North Coast Ranges. Deadshot Spring; about 1.9 km (air) east of Walker Ridge Road.
716
Comment
JEPS11966
Hesperolinon disjunctum
Rimo Bacigalupi with G. T. Robbins
1954-6-25
4622
Colusa
0.1 mi e Lake County line (e of summit of road from Bear Valley to Indian Valley)
640
Comment
UC1212470
Hesperolinon disjunctum
Helen K. Sharsmith
1959-5-27
4692
Colusa
hillslope just beyond Candy Bucket Springs (4 mi beyond Mill Creek on road to Stonyford); Inner North Coast Ranges
853
Comment
UC1212487
Hesperolinon disjunctum
Helen K. Sharsmith
1953-6-18
4253
Colusa
ca one mi above Diversion Dam of Big Stony Creek (near road from Stoneyford to Fouts Springs); Inner North Coast Ranges, Mendocino National Forest; above Diversion Dam of Big Stoney Creek, Mendocino National Forest, Colusa Co.
518
Comment
UC1212497
Hesperolinon disjunctum
Helen K. Sharsmith
1951-7-13
4031
Colusa
near Mill Creek at junction with road to Black Diamond Ridge; Inner North Coast Ranges, Mendocino National Forest, Fouts S
457
Comment
OBI12541
Hesperolinon drymarioides
Helen K. Sharsmith
1952-6-21
4159
Colusa
Inner North Coast Ranges. North cyn slope overlooking Cook springs
549
Comment
UC1212304
Hesperolinon drymarioides
Helen K. Sharsmith
1952-6-21
4159
Colusa
n canyon slope overlooking Cook Springs; Inner North Coast Ranges
548
Comment
UC1212306
Hesperolinon drymarioides
Freed W. Hoffman
1947-6-19
1616
Colusa
serpentine slope on n side canyon directly adjacent to Cook Springs (at end of road, ca five mi sw of Ladoga by road); Inner North Coast Ranges
Comment
UCD66692
Hesperolinon micranthum
Craig D. Thomsen
2000-6-23
2373
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
UCD82742
Hesperolinon micranthum
Craig Thomsen; G. Harrington
2009-5-14
2923
Colusa
Colusa County on Walker Ridge: southeast of Methany flat.
579
Comment
CHSC118362
Heteranthera dubia
Dean Wm. Taylor
2014-5-18
21476
Colusa
3.5 miles southwest of Maxwell; eastern bank of the Glenn-Colusa Canal downstream of the crossing of Fairview Road.
35
Comment
SEINET10460718
Heterocodon rariflorum
Lawrence R. Heckard
Heckard 2235
Colusa
6 MI W OF STONYFORD 1700
Comment
HSC87080
Heteromeles arbutifolia
Anthony J. Desch, Bryon Cariss
1988-4-16
35
Colusa
2 mi. W on Brim Rd. from corner of Brim Rd. and Bear Valley Rd.
518
Comment
UCD55466
Heteromeles arbutifolia
Ellen Dean; Gordon Harrington
2006-10-6
3291
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
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
UCR206401
Heteromeles arbutifolia
George K. Helmkamp, E. A. Helmkamp
2009-3-11
14376
Colusa
Inner North Coast Range Foothills, along CA-20, 14.3 miles southwest of Williams
375
Comment
POM312312
Hibiscus
H. L. Mason
1945-7-11
12649
Colusa
Alkali plains near Butte Creek; Butte Lodge Outing Club, three miles above Colusa
Comment
RSA86288
Hibiscus lasiocarpos
Verne Grant
1946-8-6
7837
Colusa
Butte Creek, 1 mile north of Butte Outing Gun Club, near Colusa.
Comment
CHSC25319
Hibiscus lasiocarpos var. occidentalis
Hayes; Warner, Schlising
1977-8-23
49
Colusa
Along Putnam Rd., where this road reaches the Butte Creek Drainage, off of Gridley road 5.
50
Comment
CHSC32210
Hieracium greenei
James Jokerst
1980-8-7
1061
Colusa
North Coast Ranges. Near Snow Mountain (west).
Comment
JEPS73513
Hieracium greenei
L. R. Heckard
1972-7-10
3131
Colusa
overlooking and 3 mi w of Fouts Springs (woods near promontory on se corner of mountain); Snow Mt.
1828
Comment
SEINET10946628
Hippuris vulgaris
Andrew Townesmith, Karen M. Meyer
2007-8-7
Townesmith 914
Colusa
Mendocino National Forest, Grindstone Ranger District. Lily Pond, off Forest Service road 17N02, 1.7 miles SW ofinteresection with Forest Service route M10. T17N R8W S24.
1264
Comment
UCD72479
Hirschfeldia incana
Ellen Dean; J. Alderson, N. Voegtly, and C. Thomsen
2007-5-12
3813
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
UCD164149
Hoita macrostachya
Craig Thomsen
1997-6-21
1930
Colusa
Bear Valley. About 8 miles north of Hwy 20.
Comment
CAS-BOT-BC383129
Holocarpha virgata subsp. virgata
Andrew Townesmith; Karen M. Meyer
2007-8-7
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
452
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
UC725605
Holocarpha virgata subsp. virgata
A. A. Heller
1940-6-7
15721
Colusa
road to Sites; Lodogo
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
CHSC110423
Hordeum brachyantherum
David Isle
1990-5-6
1982
Colusa
Stony Creek Watershed. Pendell Ranch about 2 mi W of Co. Rd. 306 jct. with Fouts Springs Road; abt 150 yds south of Pendell home.
384
Comment
UCD164138
Hordeum brachyantherum
Craig Thomsen
1997-4-20
1927
Colusa
Bear Valley. About 7 miles north of Hwy 20.
Comment
CHSC112029
Hordeum brachyantherum
David Isle; Rhonda Isle, Justin Isle
1988-5-22
2098
Colusa
Mendocino National Forest, Pendell Ranch, S of Fouts Springs Rd 18N01 (M10), ~2 miles W of Co. Rd. ~150 yds south of Pendel home.
384
Comment
UC1745700
Hordeum brachyantherum subsp. brachyantherum
Annetta M. Carter, Sarah Dyal, Ethel Crum
1938-5-8
1391
Colusa
5.5 mi. S of Leesville. Bear Valley.
426
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
POM198500
Hordeum depressum
Roxana S. Ferris
1917-4-12
518
Colusa
4 miles east of Williams
Comment
UCD18853
Hordeum depressum
Vernal Pool Team 2001; Carol Witham and Jennifer Buck
2001-4-30
161
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
SEINET9320843
Hordeum jubatum
Unknown
1998-7-9
Colusa
Bear Valley
Comment
UCD163872
Hordeum marinum subsp. gussoneanum
Craig D. Thomsen
2000-3-31
2173
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
UCD85779
Hordeum marinum subsp. gussoneanum
A. A. Beetle
1942-5-21
3273
Colusa
12 miles north of Williams.
Comment
UCD57281
Hordeum murinum subsp. glaucum
Ellen Dean; C. Thomsen, S. Bledsoe, J. Alderson, M. Starbuck
2007-4-7
3649
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
UCD86536
Hordeum vulgare
Beecher Crampton
1962-4-17
6216
Colusa
Sycamore.
Comment
CHSC48848
Horkelia californica subsp. dissita
Vernon Oswald
1984-7-20
1614
Colusa
Lily Pond n of Letts Lake in Mendocino National Forest. On the edge of a meadow.
1280
Comment
JEPS88739
Horkelia californica subsp. dissita
Dean W. Taylor
1992-6-10
12696
Colusa
Highway 162-Alder Springs Road ca 2 mi w from junction with Grindstone Road (Inner North Coast Ranges); Inner North Coast Ranges
1371
Comment
SEINET10947309
Horkelia tenuiloba
Andrew Townesmith, Karen M. Meyer
2007-8-7
Townesmith 915
Colusa
Mendocino National Forest, Grindstone Ranger District. Lily Pond, off Forest Service road 17N02, 1.7 miles SW ofinteresection with Forest Service route M10. T17N R8W S24.
1264
Comment Read comments Aug 17 2018
CHSC62925
Hornungia procumbens
Vernon H. Oswald; Lowell Ahart
1994-4-6
6075
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
UCD66960
Hosackia crassifolia
Ellen Dean; Davis Botanical Society
2008-5-31
5004
Colusa
west of I-5 at Maxwell, east slope of Goat Mountain, along Goat Mountain Road.
1152
Comment
UCD146730
Hosackia crassifolia var. crassifolia
G. F. Hrusa
1998-6-19
14617
Colusa
North Coast Ranges. Along USFS Pacific Ridge Road. (M5) Above intersection with Goat Mountain Road.
1120
Comment
JEPS80063
Hydrophyllum occidentale
L. R. Heckard and J. Hickman
1979-6-15
5069
Colusa
saddle between e and w peaks Snow Mt.
2103
Comment
JEPS80831
Hypericum formosum var. scouleri
L. R. Heckard and J. C. Hickman
1981-8-1
5803
Colusa
s. side Snow Mt. (lower Foutch Camp Meadow)
1844
Comment
UCD110369
Hypericum perforatum subsp. perforatum
Jack Booth
1973-6-14
s.n.
Colusa
State Highway 20, 2 miles west of junction with State Highway 16.
Comment
CHSC105470
Hypochaeris glabra
Richard R. Halse
2007-3-25
7122
Colusa
Along State Hwy. 20 ca. 7.8 miles northeast of its junction with State Hwy. 16, at base of Salt Canyon.
100
Comment
UCD57109
Hypochaeris glabra
Gordon Harrington; Diana Hickson
2007-4-7
0022
Colusa
Colusa Co. Ca. BLM Payne Ranch, SW intersection of Hwy 16 and Hwy 20, approx. 1/5 to 1/2 mile W of Roadkill Cafe on old fuel break.
442
Comment
UCD135955
Ibicella lutea
Barry Rice
2012-6-11
BR 120601
Colusa
near Hwy 20, 10 km west of I-5.
50
Comment
CHSC71008
Iris macrosiphon
Vernon Oswald; Lowell Ahart
1998-5-7
9008
Colusa
Bartlett Springs Rd. 2.2 mi west of Bear Valley Rd., 0.7 mi east of Sawtelle Valley and Grapevine Flat roads.
524
Comment
SEINET3875317
Iris macrosiphon
Thomas E. Higley
1974-5-4
066
Colusa
3/4 miles north of T junction of Indian Valley.; 0
853
Comment
JEPS80126
Iris tenuissima
L. R. Heckard with J. Hickman
1980-7-1
5285
Colusa
10 mi w Stonyford (Summit Springs to Frog Lake, Snow Mt., Colusa-Lake County boundary); Snow Mt.
1706
Comment
CHSC32202
Ivesia gordonii
James Jokerst
1980-8-8
1076
Colusa
North Coast Ranges. Near Snow Mountain (west).
Comment
CHSC79769
Juglans californica var. hindsii
L. P. Janeway; Caroline Warren
2000-4-6
6660
Colusa
Vicinity of Lurline Creek and Standard Road.
51
Comment
UCD82635
Juglans hindsii
Jack Alderson
2009-9-19
31
Colusa
BLM Bear Creek (formerly Payne) Ranch. Lands to the SW of junction of Hwys 16 and 20. Along Bear Creek, SE of mouth of Craig Canyon.
304
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
CHSC84195
Juncus balticus
Lowell Ahart
2003-7-14
10384
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
CHSC71509
Juncus bufonius var. congestus
Vernon H. Oswald; Lowell Ahart
1998-7-15
9305
Colusa
West side of county on Walker Ridge Rd. 8.2 mi south of Bartlett Springs Rd., 6.3 mi north of Hwy. 20. In meadow.
792
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
JEPS80246
Juncus effusus subsp. pacificus
L. R. Heckard and J. Hickman
1980-9-15
5424
Colusa
w of Summit Springs; Snow Mt.
1554
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
JEPS80271
Juncus howellii
L. R. Heckard, and J. Hickman
1980-9-16
5454
Colusa
e of West Peak (first meadow along trail from Frog Pond in cirque area); Snow Mt.
1981
Comment
JEPS73502
Juncus laccatus
L. R. Heckard
1972-7-10
3120
Colusa
Trout Creek crossing of trail to Box Springs; Snow Mt.
1828
Comment
UCD18851
Juncus mexicanus
Vernal Pool Team 2001; Carol Witham and Jennifer Buck
2001-4-30
159
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
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
JEPS80257
Juncus occidentalis
L. R. Heckard, and J. Hickman
1980-9-15
5435
Colusa
n of Summit Springs (n side of road); Snow Mt.
1524
Comment
CHSC97128
Juncus usitatus
Lowell Ahart
2007-7-7
14258
Colusa
South of the wire fence, on the south side of the Gridley Colusa Highway, about 1 1/4 miles east of River Road, about 17 miles west of Gridley.
20
Comment
HSC100768
Juncus usitatus
Lowell Ahart
2007-7-7
14258
Colusa
S side of the Gridley-Colusa Hwy., ~1 1/4 mi. E of River Rd. and 17 mi. W of Gridley.
20
Comment
UCD169280
Juncus usitatus
Lowell Ahart
2007-7-7
14258
Colusa
About 17 miles west of Gridley, About 1 1/4 miles east of River Road, on the south side of the Gridley Colusa Highway, south of the wire fence.
20
Comment
JEPS118670
Juncus xiphioides
L. P. Janeway and B. Castro
2011-5-19
10289
Colusa
Sacramento Valley. Extreme west edge of Sacramento Valley; 1.9 km southeast of Funks Reservoir and 0.2 km northeast of Tehama-Colusa Canal.
Comment
UC842993
Juncus xiphioides
A. A. Heller
1916-6-9
12389
Colusa
about 8 mi w Williams; Coast Range
Comment
UCR280794
Juncus xiphioides var. xiphioides
David Isle
2014-6-7
2133
Colusa
North Coast Range, c. 1 mile south of Stonyford, David and Rhonda Isle property. West bank of Salt Creek, just north of second curve north of bridge on Dennis Drive
366
Comment
CAS-BOT-BC80913
Juniperus californica
Roxana S. Ferris
1926-4-23
6456
Colusa
4 miles from Stanford on the Leesville Road
Comment
JEPS48304
Juniperus californica
W. L. Jepson
1932-5-8
16298
Colusa
n of Stonyford (w Colusa Co.)
365
Comment
UCD133669
Juniperus californica
L. Ahart
1971-6-10
79
Colusa
Near Sites.
76
Comment
CHSC94282
Keckiella corymbosa
Lowell Ahart
2006-8-9
13102
Colusa
On the south side of Stony Creek, at Mine Camp, about 3 1/2 miles (air) west of Stonyford.
422
Comment
JEPS110095
Kickxia elatine
Lowell Ahart
2006-8-9
13134
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford
347
Comment
CDA6281
Kickxia spuria
F. Argain
1965-11-18
Colusa
Norman Road & Main Street, Princeton.
0
Comment
CHSC107962
Koeleria phleoides
B. Castro; Robin Carter, Jessica Boyt
2011-4-25
1851
Colusa
Sacramento Valley. Extreme W edge of Sacramento Valley; 5 air mi NW of Maxwell, 1 mi southeast of Funks Reservoir and 170 ft northeast of Tehama-Colusa Canal. Ca 0.15 mi S of large +- saline/alkaline wetland/marsh, on dry grassy hillside just downslope from canal.
59
Comment
RSA746963
Lactuca serriola
George K. Helmkamp, E. A. Helmkamp
2008-10-14
14244
Colusa
Sacramento Valley: along CA-20, 0.2 mile east of the Sutter County Line
9
Comment
UC33049
Lactuca serriola
J. Burtt Davy
1898-5-1
4275
Colusa
near Willows
Comment
UCD57827
Lagophylla minor
Gordon Harrington
2007-4-17
36
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.
567
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
CAS-BOT-BC341470
Lagophylla ramosissima
L. R. Abrams
1928-5-8
12586
Colusa
2 miles south of Arbuckle
Comment
JEPS80244
Lagophylla ramosissima
L. R. Heckard and J. Hickman
1980-9-15
5419
Colusa
slopes w of Summit Springs; Snow Mt.
1554
Comment
UCR238928
Lamium amplexicaule
George K. Helmkamp, E. A. Helmkamp
2012-2-9
18533
Colusa
Sacramento Valley, River Road, 7.1 miles north of Colusa; east side of Sacramento River
18
Comment
CHSC77915
Lasthenia californica
Jean Witzman; Beth Hendrickson
1999-4-7
Colusa
Vicinity of Antelope Valley, Funks Creek, and Logan Ridge.
121
Comment
POM288355
Lasthenia californica
Lyman Benson
1933-4-16
4329
Colusa
5 miles east of Lake County line. Mt. Range: Inner N. Coast; Watershed: N. Fork Cache Creek.
457
Comment
UC90030
Lasthenia ferrisiae
K. Brandegee
Apr 1889
Colusa
Colusa Junction
Comment
CAS-BOT-BC353480
Lasthenia fremontii
A. A. Heller
1921-4-10
13546
Colusa
Near Colusa
Comment
UC90070
Lasthenia fremontii
T. S. Brandegee
Apr 1889
Colusa
Stites
Comment
CHSC107929
Lasthenia glaberrima
B. Castro; L. Janeway
2011-4-27
1862
Colusa
Sacramento Valley. Extreme west edge of Sacramento Valley; approximately 1 mi southeast of Funks Reservoir and 800 ft northeast of Tehama-Colusa Canal. Approximate center of large +- alkaline marsh.
49
Comment
UC1535364
Lasthenia glaberrima
J. M. Tucker
1978-5-6
4408
Colusa
w side Bear Valley Road (11 mi (by road) n of junction with State Highway 20)
365
Comment
SEINET5712846
Lasthenia glaberrima
J. M. Tucker
1978-1
4408
Colusa
West side of Bear Valley Road, 11 miles (by road) north of junction with State Hwy 20.
366
Comment
UCR261737
Lasthenia glabrata
Ann Howald
2003-4-23
2306
Colusa
Inner North Coast Ranges, Bear Valley Road, c. 1.5 miles north of intersection with Bear Valley Grade/Old Wilbur Road
395
Comment
CHSC79464
Lasthenia glabrata subsp. glabrata
Simona Altman
1999-4-3
51
Colusa
Bear Valley, Bear Valley Rd.
396
Comment
HSC96787
Lasthenia glabrata subsp. glabrata
J. Carey, A. Hong, J. Leffingwell
1995-4-1
30
Colusa
Bear Valley Rd., 1.2 mi. S of its junction with Brim Rd.
415
Comment
RSA293117
Lasthenia glabrata subsp. glabrata
J. P. Smith, Jane P. Nelson, Thomas W. Nelson
1978-4-2
9529
Colusa
Bear Valley Road, 5 miles from its junction with State Route 20.
390
Comment
UC1049545
Lasthenia glabrata subsp. glabrata
Rimo Bacigalupi
1950-4-16
3124
Colusa
Bear Valley
Comment
UC638651
Lasthenia glabrata subsp. glabrata
Ethel Crum
1938-5-8
2034
Colusa
4 mi s Leesville
426
Comment
CAS-BOT-BC353439
Lasthenia glabrata subsp. glabrata
Ella Dales Cantelow
1936-4-11
1151
Colusa
Jct. William Hy, Bear Creek Canyon
Comment
UC71630
Lasthenia gracilis
Miss Alice King
1905-1-1
Colusa
College City
Comment
CHSC116580
Lathyrus jepsonii
B. Castro; Tom Boullion
2015-6-15
17336 /4/20
Colusa
Sacramento Valley. CA 5 air mi N of colusa, ca 0.5 mi E of Hwy 45 off N edge of Reservation Road. On upper terrace within levee, overlooking a riprap-lined bend in the Sacramento Rier (Rivermile ~154.3).
16
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
JEPS80788
Lathyrus jepsonii var. californicus
L. R. Heckard and J. C. Hickman
1981-7-30
5761
Colusa
se side of Snow Mountain, Trout Creek Trout Creek; Snow Mountain, Trout Creek
1584
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
UCD80896
Lathyrus vestitus
Ellen Dean; G. Harrington
2009-3-27
5296
Colusa
BLM Bear Creek (Payne) Ranch, lands to the SW of the jct of Hwys 16 and 20. Along road that connects Lynch Canyon and the Ridge Trail on slope above road.
453
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
CAS-BOT-BC323885
Layia chrysanthemoides
Joshua Suchocki; Charlene Vullo; Kyle Wear
1995-4-1
44
Colusa
Along Bear Valley Rd. 1.2 miles S of the junction with Brim Rd.
414
Comment
CAS-BOT-BC323886
Layia chrysanthemoides
Brad Kerstetter; Roxanne Jackson; Jeff Cox
1995-4-1
010
Colusa
On Bear Valley Road, 1.2 miles S of junction with Brim Road.
414
Comment
CAS-BOT-BC323901
Layia chrysanthemoides
Mrs. H. C. Cantelow
1936-4-11
1155
Colusa
Bear Creek Canyon.
396
Comment
CHSC81247
Layia chrysanthemoides
J. Trizzino
2001-3-31
14
Colusa
Bear Valley Meadow along east side of Bear Valley Road.
396
Comment
JEPS13438
Layia chrysanthemoides
R. F. Hoover
1938-4-24
3224
Colusa
Venado
Comment
JEPS39184
Layia chrysanthemoides
W. I. Follette
1935-3-31
Colusa
Williams
Comment
UC762527
Layia chrysanthemoides
R. F. Hoover
1938-4-24
3221
Colusa
Williams
Comment
UC89163
Layia chrysanthemoides
K. Brandegee
Apr 1889
Colusa
Leesville
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
UCR212376
Layia chrysanthemoides
Ellen Dean, Craig D. Thomsen, N. Voegtly, J. Alderson, Gordon Harrington
2008-3-30
4663
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
SEINET5712162
Layia chrysanthemoides
Clinton C. Shock
1980-1
64
Colusa
Bear Valley, ca. 12 miles north of State Hwy 20; west edge of valley.; Bear Valley
390
Comment
UCD15425
Layia fremontii
Margit Sands
1985-4-13
28
Colusa
in Bear Valley, 3.8 miles north of Wilbur Hot Springs rd.;
390
Comment Read comments Apr 18 2009
CDA11407
Layia platyglossa
G. F. Hrusa, K. van Katwyk
1995-4-22
12128
Colusa
Inner North Coast Ranges; Bear Valley, 15 m. N of Hwy. 20.
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
CHSC53937
Layia platyglossa
Vernon H. Oswald
1991-4-21
4522
Colusa
Bear Valley Rd in Bear Valley, 3.3 mi south of Brim Rd (Bartlett Springs Rd), west of Williams. Roadside.
417
Comment Read comments May 24 2013
HSC92539
Layia platyglossa
S. Morrissette, J. Williams, K. Kopper
1994-4-24
23
Colusa
Bear Valley Rd., approx. 1.3 miles south of junction with Brimm Rd.
412
Comment
SEINET11447842
Layia platyglossa
M. J. Williams
1967-5-7
s.n.
Colusa
Bear Valley
396
Comment
JEPS13435
Layia septentrionalis
R. F. Hoover
1938-4-23
3206
Colusa
grade on Rumsey; Arbuckle road
Comment
UC75946
Layia septentrionalis
Miss M. Alice King
1905-1-1
Colusa
near College City
Comment
UC761855
Layia septentrionalis
R. F. Hoover
1938-4-23
3206
Colusa
grade on Rumsey-Arbuckle road
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
UCR261679
Layia septentrionalis
Ann Howald
2003-4-24
2316
Colusa
Inner North Coast Ranges, Indian Valley, west side of East Park Reservoir, south side of road to spillway
367
Comment
UC1100313
Leersia oryzoides
Herbert L. Mason
1945-9-19
12715
Colusa
1 mi above Colusa (below causeway over Butte Sink spillway, e bank of Sacramento River, Butte Sink); Sacramento River, Butte Sink
Comment
UC1101247
Lemna aequinoctialis
Malcolm A. Nobs, S. Galen Smith
1949-9-10
1889
Colusa
about 1 mi s of Maxwell
Comment
UC1101273
Lemna aequinoctialis
Herbert L. Mason
1946-8-15
13009
Colusa
2 mi w on Williams Highway by bridge Colusa; Williams Highway
Comment
CAS-BOT-BC527290
Lemna trisulca
C. Ritchie Bell
1951-6-13
1167
Colusa
Below Letts Meadow on road from Bear Creek to Foutes Spring
914
Comment
CAS-BOT-BC527293
Lemna trisulca
J. M. Tucker; L. K. Mann; John Tothill
1959-5-30
3532
Colusa
On small lake in Mill Valley, ca. 1/4 mile northwest of Lower Letts Valley, and ca. 4 airline miles, north of Goat Mountain Lookout
Comment
RSA141287
Lemna trisulca
J. M. Tucker, L. K. Mann, John Tothill
1959-5-30
3532
Colusa
Small lake in Mill Valley, ca. 1/4 mile northwest of Lower Letts Valley, and ca. 4 miles, airline, north of Goat Mountain Lookout
1220
Comment
SEINET8201321
Lemna trisulca
J. M. Tucker, L. K. Mann, John Tothill
1959-1
3532
Colusa
Mill Valley
Comment
UCD63714
Lepidium draba
Craig D. Thomsen
2008-4-7
2724
Colusa
BLM Payne Ranch. Southwest of intersection of Hwy 16 and Hwy 20. Along entry road into Cowboy Camp from Hwy 16, 1 mile south of Hwy 20.
Comment
HSC72170
Lepidium lasiocarpum
J. P. Smith, Thomas W. Nelson, Jane P. Nelson
1978-4-2
9542
Colusa
Bear Valley Rd., 1.3 mi. from its junction with Hwy. 20
366
Comment
SEINET1908437
Lepidium latifolium
G. K. Helmkamp, E. A. Helmkamp
2008-1
14257
Colusa
Sacramento Valley: along River Road (generally following the Sacramento River), 1.1 miles north of Colusa
18
Comment
SEINET2033409
Lepidium latifolium
George K. Helmkamp, E. A. Helmkamp
2008-1
14257
Colusa
Sacramento Valley; along River Road (generally following the Sacramento River), 1.1 miles north of Colusa (Meridian 7.5' Q.: 39 deg. 13'33''N, 121 deg. 59'43''W, +/- 1000m).
18
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
CAS-BOT-BC89760
Lepidium latipes
Roxana S. Ferris
1917-4-12
502
Colusa
4 miles east of Williams.
Comment
CHSC52006
Lepidium nitidum
Camille M. Corda
1982-4-12
17
Colusa
Ca. 0.3 mi w of jct of Hwys 20 and 16, s side of Bear Creek, 100 ft from n side of Hwy 20, ca. 18 mi sw of Williams.
321
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
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
UC1100305
Leptochloa fascicularis
Herbert L. Mason and Verne Grant
1946-8-6
12962
Colusa
pond on Colusa-Marysville Hwy 4 mi s Colusa (w side of Sacramento River)
Comment
UCD63675
Leptochloa fusca subsp. fascicularis
Elizabeth Wilson
1940-1
Colusa
Colusa.
Comment
UCD82365
Leptosiphon androsaceus
Robin McMaster
1973-4-15
335
Colusa
1/2 mi towards Bartlett Springs from Bear Valley Road.
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
UCD58114
Leptosiphon bicolor
Ellen Dean; G. Harrington and P. McIntyre
2007-3-16
3381
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. Along unimproved road that goes south from Hwy. 20, ca. 2.3 road miles W of junction with Hwy. 16. Unnamed valley with old building called 'Roadkill Cafe.
414
Comment
HSC85934
Leptosiphon bicolor
Michalski, Raum, Hopson
1987-4-12
61
Colusa
Side of Leesville-Williams Rd.
Comment
RSA388851
Leptosiphon bicolor
Eugene Tanimoto
1975-4-20
s.n.
Colusa
Bear Valley Road, 8.7 miles north of State Highway 20.
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
UCD55171
Leptosiphon bolanderi
Kim E. Steiner
1978-4-29
202
Colusa
Walker Ridge Road; 1.5 miles N of State Hwy 20.
777
Comment
HSC47564
Leptosiphon ciliatus
J. P. Smith, J. O. Sawyer
1978-4-29
9796
Colusa
Bear Valley Rd., 5.9 mi. from its junction with Hwy. 20
366
Comment
HSC99741
Leptosiphon ciliatus
J. Carey, A. Hong, J. Leffingwell
1995-5-7
86
Colusa
2.25 mi. SE on Leesville-Williams Rd. from its junction with Bear Valley Rd.
396
Comment
HSC85855
Leptosiphon filipes
Rob Marheine, Tim Tilghman, Bruce Delgado
1987-4-11
Colusa
Bear Valley, Bartlett Springs Rd.
Comment
CHSC1269
Leptosiphon parviflorus
V. Holt
1935-5-12
Colusa
Stonyford.
Comment
UCD163911
Leptosiphon parviflorus
Sara Martin
2016-4-9
4
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.
375
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
UCD82545
Leptosiphon parviflorus
Ellen Dean; G. Harrington, C. Thomsen,R. Wilmarth,Chiao-Yi Cheng
2009-5-20
5700
Colusa
Walker Ridge. Along Walker Ridge just S of turn-off to picnic area near Cold Spring.
1007
Comment
CHSC32205
Lesquerella occidentalis subsp. occidentalis
James Jokerst
1980-8-7
1067
Colusa
North Coast Ranges. Near Snow Mountain (west).
Comment
CAS-BOT-BC341801
Lessingia nemaclada
Peter H. Raven; R. Snow
1959-9-11
14425
Colusa
About 2 miles south-east of Happy Camp
762
Comment
SD132027
Lessingia nemaclada
Barbara Ertter, Neese,Fujii,Espindola
1989-10-21
8868
Colusa
Brim Road, southwest of Leesville to Indian Valley Reservoir
609
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
RSA0118883
Lessingia ramulosa
Lowell Ahart
2013-10-1
19068
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
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
UCD84547
Lessingia ramulosa
Ellen Dean; C. Thomsen, T. Hansen, and windfarm meeting
2010-6-11
6145
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
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
UC38247
Leymus triticoides
J. Burtt Davy
May, 1898
4290
Colusa
near Princeton
Comment
UCD163658
Leymus triticoides
Craig Thomsen
1998-6-10
1956
Colusa
Bear Valley. About 7 miles north of Hwy 20.
Comment
CAS-BOT-BC451579
Lilaea scilloides
Roxana S. Ferris
1917-4-12
723
Colusa
4 miles East of Williams
Comment
JEPS80768
Lilium pardalinum
L. R. Heckard and J. C. Hickman
1981-7-30
5736
Colusa
along Trout Creek Trail, se side of Snow Mountain Snow Mountain; , Trout Creek Trail
1676
Comment
CDA34116
Limnanthes alba
P. Hiatt
1979-4-26
7
Colusa
North end of Bear Valley at Bartlett Springs Road.
0
Comment
UCD33937
Limnanthes douglasii subsp. nivea
Beecher Crampton
1958-4-21
9168
Colusa
Colusa County, 2 miles W.N.W. of Lodoga.
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
UC71654
Linanthus ciliatus
Miss Alice King
1905-1
Colusa
College City
Comment
UC73621
Linanthus ciliatus
Miss Alice King
1905-1
Colusa
near College City; Sacramento Valley
Comment
JEPS2613
Linanthus rattanii
V. Rattan
Colusa
summit above Fout's Springs (summit on trail to Fout's Springs from Stony Valley); ; Above Fout's Springs, Colusa Co.
Comment
JEPS86704
Linanthus rattanii
L. R. Heckard with P. C. Silva, R. L. and M. Moe
1988-6-19
6697
Colusa
0.5 km w Summit Springs (sw flank of mtn., Colusa-Lake County line); Snow Mtn.
1500
Comment
UCD39927
Linum
Beecher Crampton
1995-6-4
10323
Colusa
Lake County Border: State Highway 20.
Comment
JEPS14626
Lithophragma
Helen K. Sharsmith
1953-7-1
4403
Colusa
above Linger Longer Camp Goat Mountain (Goat Mountain); Inner North Coast Ranges, Mendocino National Forest
1615
Comment
JEPS15252
Lithophragma affine
Rimo Bacigalupi with G. Ledyard Stebbins and Peter Kamb
1950-4-16
3111
Colusa
4 mi s Ladoga (and 6 mi nnw of Leesville, along Little Indian Creek); Indian Valley, Little Indian Creek
396
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
UC1051513
Lithophragma campanulatum
Helen K. Sharsmith
1953-7-1
4403
Colusa
above Linger Longer Camp Goat Mountain (Goat Mountain); Inner North Coast Ranges, Mendocino National Forest
1615
Comment
JEPS80090
Lithophragma glabrum
L. R. Heckard with J. Hickman
1979-6-16
5098
Colusa
nw of West Peak Snow Mt. (s end of Milk Ranch meadow); , , s end of Milk Ranch meadow
1950
Comment
RSA0118614
Logfia filaginoides
Lowell Ahart
2013-5-1
18678
Colusa
Inner North Coast Range. On the north 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
UCD159333
Logfia filaginoides
D. S. Park
2010-6-5
117
Colusa
Walker ridge, Cold Spring Mt. roadside and adjacent grassland.
760
Comment
SBBG128772
Logfia filaginoides
L. Ahart
2013-5-1
18678
Colusa
N 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
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
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
SEINET13944350
Lomatium ciliolatum
Bonnie Prange
1974-1
sn
Colusa
Wilbur Springs Quad. Near Clyde Mine. Elev 2800 ft
853
Comment
CDA12080
Lomatium ciliolatum var. hooveri
G. F. Hrusa
1989-4-8
5913
Colusa
North Coast Biodiversity Arena; Bartlett Springs road immediately to W of Bear Valley, lower slopes of Walker Ridge.
Comment
UC903739
Lomatium hooveri
Milo S. Baker
1947-4-6
11646
Colusa
near Hwy. 20 ca. 1 mi. e. Lake-Colusa Co. line
Comment
UCD110811
Lomatium hooveri
Christopher Mallek
2008-1
s.n.
Colusa
Pacific Ridge. Border of Colusa and Lake Counties.
1101
Comment
UCR261643
Lomatium hooveri
Ann Howald
2003-3-26
2288
Colusa
Inner North Coast Ranges, Indian Valley, East Park Reservoir, Catholic Point peninsula, near Coppermine Road, c. 0.3 mi northwest of intersection with East Ruby King Rd.
419
Comment
UCD150867
Lomatium hooveri
Clinton C. Shock
1980-5-3
73
Colusa
Walker Ridge, 14.6 miles north of State Highway 20, at intersection with road to Bear Valley.
670
Comment
CHSC116064
Lomatium macrocarpum
Richard R. Halse
2014-3-25
9033
Colusa
Along the Leesville-Logoda Road ca. 5.6 miles south of Logoda; Indian Valley.
425
Comment
RSA0060080
Lomatium macrocarpum
Richard R. Halse
2014-3-25
9033
Colusa
Along the Leesville-Logoda Road ca. 5.6 miles south of Logoda; Indian Valley.
425
Comment
SEINET11263259
Lomatium macrocarpum
Richard R. Halse
2014-3-25
9033
Colusa
Along the Leesville-Logoda Road ca. 5.6 miles S of Logoda. Indian Valley.; 0
425
Comment
UCD163208
Lomatium macrocarpum
Craig D. Thomsen
2000-4-28
2206
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
UCD82531
Lomatium macrocarpum
Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth
2009-5-20
5683
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
CDA33687
Lomatium macrocarpum
P. Hiatt
1979-4-26
Colusa
North end of Bear Valley at Bartlett Springs Road.
0
Comment
SEINET13944634
Lomatium tomentosum
Jack Major, Eilif Dahl
1962-1
sn
Colusa
Bear Valley
Comment
UC875215
Lomatium utriculatum
Lewis S. Rose
1936-4-27
36180
Colusa
11 mi. n.w. Rumsey
Comment
UCD64263
Lomatium utriculatum
Craig D. Thomsen
2000-3-31
2060
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
UCR261619
Lomatium utriculatum
Ann Howald
2003-3-25
2287
Colusa
Inner North Coast Ranges, Sites-Lodoga Road, c. 1.5 miles east of Grapevine Pass, east of Clark Ridge
319
Comment
HSC47643
Lomatium utriculatum
J. P. Smith, J. O. Sawyer
1978-4-29
9795
Colusa
Bear Valley Rd., 5.9 mi. from its junction with Hwy. 20
366
Comment
SEINET13944681
Lomatium utriculatum
F. G. Meyer
1938-1
1361
Colusa
low meadows, about 50 miles west of Williams
Comment
UCD40909
Lomatium utriculatum
A. Bebensee
1984-4-21
6
Colusa
9 miles north of Hwy 20 on Bear Valley Road. About 100 yards into field on west roadside.
Comment
SEINET9672754
Lomatium vaginatum
R. R. Halse
2014-3-25
9028
Colusa
Along the Sites-Logoda Road, ca. 5.2 mi NW of Sites.
175
Comment
UCD57666
Lonicera interrupta
Erica A. Smith; 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/Eastern part of ranch. Craig Canyon. Along unimproved road, 100 yards west of where road crosses Craig Creek.
313
Comment
UCD63113
Lonicera interrupta
Ellen Dean; G. Harrington, C. Thomsen, S. Harrison
2008-5-18
4944
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.
384
Comment
UC1299560
Lonicera involucrata var. ledebourii
Freed W. Hoffman
1948-6-27
2493
Colusa
8.6 mi sw Fouts Spring; North Coast Ranges, Upper Letts Valley
1310
Comment
RSA725013
Lotus corniculatus
L. Ahart
2006-8-9
13129
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
348
Comment Read comments Aug 9 2017
SEINET7042570
Lotus formosissimus
A. G. Vestal
1938-9-1
s.n.
Colusa
Along top of trough, Springs Ridge near Foxtrap Springs. Fouts Spring quadrangle UTM Zone 10, 530960mE, 4350980mN.
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
JEPS101802
Lotus grandiflorus var. grandiflorus
Dean W. Taylor
1998-6-23
16705
Colusa
Walker Ridge; ; Walker Ridge, along BLM access road
929
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
RSA424761
Lotus humistratus
Aaron Liston, M. Blumler
1987-4-26
668 -6
Colusa
East Park Reservoir, 3.2 miles E of Stonyford
Comment
HSC72772
Lotus humistratus
J. Krajanowski
1981-4-4
7
Colusa
Salt Canyon, N side of Salt Creek, Hwy. 20, 11 mi. WSW of Williams
143
Comment
JEPS110414
Lotus purshianus var. purshianus
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
UCR205138
Lotus purshianus var. purshianus
George K. Helmkamp, E. A. Helmkamp
2008-10-14
14242
Colusa
Sacramento Valley, along CA-20, 0.2 mile east of the Sutter County line
9
Comment
JEPS75753
Lotus purshianus var. purshianus
L. R. Heckard, and R. Bacigalupi
1976-9-6
4434
Colusa
just e Fout's Camp; Snow Mt.
1859
Comment
UCD66958
Lupinus adsurgens
Ellen Dean; Davis Botanical Society
2008-5-31
5002
Colusa
west of I-5 at Maxwell, east slope of Goat Mountain, along Goat Mountain Road.
1099
Comment
CAS-BOT-BC198402
Lupinus albifrons var. albifrons
Roxana S. Ferris
1926-4-23
6422
Colusa
Summit of grade Williams-Stonyford Road
Comment
SD58255
Lupinus albifrons var. collinus
Stanton A. Cook
1959-5-30
891
Colusa
Ridge below and to the north of the summit of Goat Mountain.
1829
Comment
UCR212293
Lupinus albifrons var. collinus
Ellen Dean, Davis Botanical Society
2008-5-31
5010
Colusa
West of I-5 at Maxwell, east slope of Goat Mountain, along Goat Mountain Road, between Cedar Grove Campground and the summit, near crossing of tributary of Little Stoney Creek
1309
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
HSC45687
Lupinus bicolor
Patricia Shesgreen
1978-4-22
32
Colusa
Bear Valley Rd., 1.5 mi. from its junction with Hwy. 20
412
Comment
HSC48044
Lupinus bicolor
Thomas W. Nelson, Jane P. Nelson
1978-4-29
3938
Colusa
Along Bear Valley Rd., 2.5 mi. from junction with Hwy. 20
366
Comment
JEPS81297
Lupinus bicolor
L. R. Heckard with J. C. Hickman
1982-7-5
5911
Colusa
below Summit Springs (S side Snow Mt.)
Comment
RSA724140
Lupinus bicolor
Richard R. Halse
2002-3-21
6131
Colusa
Williams; by junction of 5th Street and B Street.
24
Comment
SEINET5328111
Lupinus bicolor
R. R. Halse
2002-3-21
6131
Colusa
Williams; by junction 5th St. and B St.
24
Comment
UCR206360
Lupinus bicolor
George K. Helmkamp, E. A. Helmkamp
2009-3-11
14383
Colusa
Sacramento Valley, on the south side of CA-20 just west of the junction with Freshwater Road, northwest edge of Williams
49
Comment
SEINET10838151
Lupinus bicolor subsp. tridentatus
Smith
1978-4-2
Smith 9570
Colusa
Colusa co. T14n, r5w, sec. 34. Bear valley rd., 2.1 Miles from its junction With state route 20. Rock faces in metasedimentary chaparral.
366
Comment
HSC85822
Lupinus densiflorus var. aureus
David Munger, Jeff Dunk, Tallchief Comet
1987-4-12
72
Colusa
Comment
POM163463
Lupinus densiflorus var. aureus
Roxana S. Ferris
1926-4-23
6415
Colusa
At Mountain House on the Williams-Stonyford Road.
Comment
RSA60349
Lupinus densiflorus var. aureus
G. R. Campbell
1948-6-18
650
Colusa
2 miles south of Wilbur Springs
Comment
SEINET10838182
Lupinus densiflorus var. aureus
J. P. Kroessig
1977-4-16
Kroessig 9
Colusa
Corolla yellow-white, pleasantly scented. Large population ca. 0.3 Mi. Sw of Jct of hwys 20 and 16, s side of bear creek, ca 18 mi. Sw of williams. Wilbur Springs quad, 15'. S central border of sec 36, t14n, r5w. Open foothill Woodlands.
322
Comment
UC84449
Lupinus formosus
Katharine Brandegee
April 1889
Colusa
Epperson's
Comment
NY15886
Lupinus formosus var. robustus
A. A. Heller
1902-5-20
5573
Colusa
Near College City
Comment
JEPS81270
Lupinus luteolus
L. R. Heckard and J. C. Hickman
1982-7-5
5878
Colusa
slope below (s) Summit Springs (s side of Snow Mt.); , s of Summit Springs
1500
Comment
UCD81894
Lupinus luteolus
Ellen Dean; Bear Creek Ranch Grazing Committee
2009-6-19
5778
Colusa
BLM Bear Creek (formerly Payne) Ranch. Lands to the SW of the junction of Hwys 16 and 20. Along Bear Creek opposite Cowboy Camp parking lot, on W side of creek.
314
Comment
CHSC90508
Lupinus microcarpus var. densiflorus
Martin Polsan
1988-4-9
14
Colusa
Salt Canyon, n side of Salt Creek, Hwy 20, 11 mi wsw of Williams.
143
Comment
UC1543161
Lupinus microcarpus var. densiflorus
Charlotte G. Nast
1936-4-17
137
Colusa
Williams to Lake Co. Road
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
UCD63105
Lupinus microcarpus var. densiflorus
Ellen Dean; G. Harrington, C. Thomsen, S. Harrison
2008-5-18
4936
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
OBI56805
Lupinus microcarpus var. densiflorus
Rhonda Riggins
1982-5-30
1448
Colusa
Roadside Ladoga-Leesville Rd, 4.4 mi N Leesville
457
Comment
SD52958
Lupinus microcarpus var. densiflorus
Peter H. Raven
1962-5-31
17910
Colusa
Stae Hwy 20, 2.5 miles east of Lake County line
Comment
CHSC107948
Lupinus microcarpus var. microcarpus
B. Castro; Robin Carter, Jessica Boyt
2011-4-25
1849
Colusa
Sacramento Valley. Extreme west edge of Sacramento Valley; 5 air mi NW of Maxwell, 1 mi southeast of Funks Reservoir and 170 ft northeast of Tehama-Colusa Canal. Ca 0.15 mi S of large +- saline/alkaline wetland/ marsh, on dry grassy hillside just downslope from canal.
59
Comment
UCR212341
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 mi west of Hwy 20/16 intersection, milepost 2.80-3.00
310
Comment
SEINET12165154
Lupinus milo-bakeri
Unknown
1985-1
50656
Colusa
Bear Vly. W of Williams
404
Comment
SEINET5320953
Lupinus nanus
Unknown
2002-3-21
6129
Colusa
Williams; By junction of 5th Street and B Street
20
Comment
RSA724143
Lupinus nanus subsp. nanus
Richard R. Halse
2002-3-21
6129
Colusa
Willaism; by junction of 5th Street and B Street.
24
Comment
CHSC114063
Lupinus succulentus
Richard R. Halse
2013-3-26
8736
Colusa
Along the Leesville Road ca 1.8 miles northwest of its junction with State Hwy 20, west of Williams.
85
Comment
CHSC77930
Lupinus succulentus
Jean Witzman; Beth Hendrickson
1999-4-19
Colusa
Vicinity of Logan Ridge and Golden Gate.
152
Comment
HSC72173
Lupinus succulentus
J. P. Smith, Jane P. Nelson, Thomas W. Nelson
1978-4-2
9550
Colusa
Bear Valley Rd., 1.3 mi. from its junction with Hwy. 20
366
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
SEINET9325857
Lupinus succulentus
Unknown
2009-5-20
14735
Colusa
Glasscock Mountain
Comment
HSC48193
Lupinus vallicola subsp. apricus
Thomas W. Nelson, Jane P. Nelson
1978-4-29
3963
Colusa
Along Bear Valley Rd., 2.5 mi. from junction with Hwy. 20
366
Comment
CHSC107980
Lythrum californicum
B. Castro; Joe Silveira, Tom Boullion
2011-6-10
1883
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 100 ft E of large +- saline/alkaline wetland/marsh, on S edge of compacted E-W road track that goes through marsh.
49
Comment
UCD102989
Lythrum californicum
Dick Johnson
1977-6-15
s.n.
Colusa
West of Williams rangeland.
Comment
CHSC94454
Lythrum hyssopifolia
Lowell Ahart
2006-8-9
13161
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
347
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
UCR225655
Lythrum hyssopifolia
Craig D. Thomsen, Gordon Harrington
2008-7-6
2773
Colusa
BLM Payne Ranch, lands to the southwest of the junction of Hwys 20 and 16. Western edge of ranch, near ridge trail that follows the border of Colusa/Lake Counties. Dunsfield Flat stock pond
610
Comment
CHSC61222
Lythrum tribracteatum
K. R. Stern
1980-6-30
6645
Colusa
South central border area of Colusa National Wildlife Refuge.
45
Comment
SBBG122988
Lythrum tribracteatum
B. Ertter et al.
1989-10-21
8870
Colusa
SE end of East Park Reservoir, N of Lodoga
365
Comment
UC1619949
Lythrum tribracteatum
Barbara Ertter with Elizabeth Neese, Laura Fujii, Dawn Espindola
1989-10-21
8870
Colusa
SE end of East Park Reservoir N of Lodoga
365
Comment
JEPS4791
Madia elegans
Rimo Bacigalupi with L. R. Heckard
1951-8-6
3472
Colusa
1 mi se Sites (in canyon near stone quarry)
Comment
JEPS80798
Madia elegans
L. R. Heckard and J. C. Hickman
1981-7-30
5768
Colusa
about 100 ft above on n side Trout Creek (se side of mountain); Snow Mt.
1554
Comment
CAS-BOT-BC342678
Madia elegans
Roxana Stinchfield
1916-7-11
429
Colusa
Sycamore Slough Road
Comment
CHSC27631
Madia exigua
Timothy Spira; Robert Schlising
1978-5-13
3239
Colusa
Just E of Lake County line, along Hwy 20.
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
JEPS119422
Madia exigua
G. K. Helmkamp, E. A. Helmkamp
2009-5-20
14741
Colusa
Central Inner Coast Ranges, along CA-16 near Bear Creek, 1.6 miles south of the junction with CA-20
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
UC638697
Madia exigua
Ethel Crum
1938-5-7
2008
Colusa
4.2 mi n Rumsey (Comanche Hills, summit of ridge); Inner North Coast Range
254
Comment
UCD66603
Madia exigua
Craig D. Thomsen
2000-5-11
2277
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
UCR206319
Madia exigua
George K. Helmkamp, E. A. Helmkamp
2009-5-20
14741
Colusa
Central Inner Coast Ranges, along CA-16 near Bear Creek, 1.6 miles south of the junction with CA-20
320
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
UCD66450
Madia gracilis
Craig D. Thomsen
2000-5-11
2296
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
UCD67039
Madia gracilis
Ellen Dean; Davis Botanical Society
2008-5-31
5019
Colusa
west of I-5 at Maxwell, Goat Mountain, ridge below summit off of Goat Mountain Road.
1734
Comment
UCR206383
Madia gracilis
George K. Helmkamp, E. A. Helmkamp
2009-5-20
14753
Colusa
Inner North Coast Ranges, along CA-16, 1.8 miles north of the Yolo County line
271
Comment
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
UCR281732
Malacothamnus fremontii
David Isle, Frank Elliott
2014-6-11
2134
Colusa
Northern Sacramento Foothills, Frank and Judy Elliott Ranch, c. 1 mile south of Rail Canyon Road junction with Sites-Lodoga Road and c. 0.5 mile south of Sites-Lodoga Road
604
Comment
CHSC115622
Malacothamnus fremontii
David Isle; Frank Elliott
2014-6-11
2134
Colusa
Northern Sacramento Foothills: Frand and Judy Elliott Ranch, 1 mile S of Rail Canyon Rd. Jct. with Ssites-Lodoga Rd. and 1/2 mile S of Sites-Lodoga Rd. SE of Elliott home. (GPSs for Rail Canyon Rd. Jct./Sites-Lodoga Rd.) 10S-0546594E, 4356133N).
Comment
JEPS127598
Malacothamnus fremontii
David Isle with Frank Elliott
2014-6-11
2134
Colusa
Frank and Judy Elliott Ranch, ca 1 mile S of Rail Canyon Road junction with Sites-Lodoga Road and ca 1/2 mile S of Sites-Lodoga Road.
Comment
CHSC80037
Malacothamnus helleri
L. P. Janeway; Joyce Lacey-Rickert
2000-6-1
6778
Colusa
Vicinity of Grapevine Creek, Hayes Canyon, and Eggman Canyon.
335
Comment
POM282851
Malacothamnus helleri
Lyman Benson
1933-6-26
4488
Colusa
Abbott mine.
549
Comment
CHSC59692
Malacothrix californica
Janet Delight
1978-4-8
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
UCD83450
Malacothrix clevelandii
Craig Thomsen; G. Harrington
2009-5-12
2826
Colusa
Colusa County on Walker Ridge: About 200 yards south of spur road enroute to Eaton Springs from Walker Ridge Rd. ( About 1/2 mile east of Walker Ridge Road)
822
Comment
CHSC27868
Malacothrix floccifera
Robin Ondricek
1978-4-8
5
Colusa
Salt Canyon, n side of Salt Creek, Hwy 20, 11 mi wsw of Williams.
143
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
UCD132838
Malacothrix floccifera
Beecher Crampton
1975-4-21
9164
Colusa
1.5 miles SE of Sites.
Comment
RSA135416
Malacothrix floccifera
Volney Rattan
1884-1
s.n.
Colusa
[no location specified]
Comment
UC1174491
Malacothrix floccifera
Volney Rattan
1884-1
Colusa
Comment
RSA669479
Malva parviflora
R. R. Halse
2001-3-22
5945
Colusa
Williams; along a vacant lot by 455-4th Street.
18
Comment
CHSC84435
Malvella leprosa
Lowell Ahart
2003-8-15
10507
Colusa
Road (disked) that bordered rice field, on the south side of Highway 20, about 1 mile southwest of Williams.
27
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
RSA140617
Malvella leprosa
John H. Thomas
1960-8-30
8863
Colusa
About 5 miles NW of College City along road to Sycamore.
Comment
UC1368667
Malvella leprosa
L. M. Moe
1969-7-29
98
Colusa
along Butte Creek ca. 3 mi. n.e. Colusa (also along rd. of Butte Creek Outing Club property); Butte Creek
Comment
UC573258
Malvella leprosa
H. S. Yates
1936-8-14
6130
Colusa
3 mi. s. Colusa; Colusa Quad.
15
Comment
UCD63127
Malvella leprosa
Ellen Dean; G. Harrington, C. Thomsen, S. Harrison
2008-5-18
4957
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwys 20 and 16. Destinella Flat on the south side of Hwy 20, just east of the Lake County line, ca 3.4 rd miles west of junction with Hwy 16.
551
Comment
CDA32964
Malvella leprosa
Doug Barbe & Phyllis Hiatt
1979-5-2
Colusa
Williams; waste ground by Shell station.
0
Comment
SEINET6669708
Marah fabacea
R. R. Halse
2014-3-25
9029
Colusa
Along the Sites-Logoda Road about 4.7 miles northeast of Logoda; on the west end of Grapevine Pass
527
Comment
SEINET7254189
Marah fabacea
Richard. R. Halse
2014-1
9029
Colusa
Along the Sites-Logoda Road ca. 4.7 miles northeast of logoda; on the west end of Grapevine Pass
527
Comment
SEINET8551368
Marah watsonii
R. R. Halse
2014-3-25
9031
Colusa
W end of Grapevine Pass, along the Sites-Logoda Road, ca 4.7 miles NE of Logoda.
527
Comment
UCR206540
Marah watsonii
George K. Helmkamp, E. A. Helmkamp
2009-3-17
14398
Colusa
Inner North Coast Ranges Foothills, along CA-16 and Bear Creek, 7.0 miles south of the junction with CA-20; just north of the Yolo County line
194
Comment
CHSC118890
Marah watsonii
Glenn Keator
1966-4-24
Colusa
Junction of Rail Canyon Road and Sites-Lodoga Road.
Comment
RSA63685
Marah watsonii
Milo S. Baker
1947-4-6
11644
Colusa
1 mile E of Lake - Colusa boundary along hwy 20, Serpentine area.
Comment
UCR206379
Marrubium vulgare
George K. Helmkamp, E. A. Helmkamp
2009-5-20
14757
Colusa
Inner North Coast Ranges, along CA-16, 1.8 miles north of the Yolo County line
271
Comment
CAS-BOT-BC67833
Marsilea vestita
Roxana Stinchfield
1916-7-11
452
Colusa
Colusa-Williams Road at the trough
Comment
JEPS374
Marsilea vestita subsp. vestita
W. L. Jepson
1934-7-28
16751
Colusa
Williams
Comment
UC89518
Matricaria discoidea
T. S. Brandegee
April 1889
Colusa
Colusa Junction
Comment
UCD57865
Matricaria discoidea
Gordon Harrington; Diana Hickson, Jack Alderson
2007-4-29
48 a
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
CDA34098
Matricaria discoidea
P. Hiatt
1979-4-26
Colusa
North end of Bear Valley at Bartlett Springs Road.
0
Comment
UC75895
Matricaria occidentalis
Miss M. Alice King
1905-1
Colusa
near City College; Sacramento Valley
Comment
UC1051742
Medicago lupulina
Helen K. Sharsmith
1953-6-20
4298
Colusa
Little Stoney Creek Inner North Coast Ranges, Mendocino National Forest (slopes)
762
Comment
UCD63031
Medicago minima
Ellen Dean; C. Thomsen, N. Voegtly, J. Alderson, G. 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
CHSC112216
Medicago polymorpha
Lowell Ahart; John Dittes, Josephine Guardino
2013-4-26
18651
Colusa
Inner North Coast Range. 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 (air) west of Williams.
566
Comment
POM276559
Medicago polymorpha var. brevispina
Lyman D. Benson
1933-4-16
4336
Colusa
5 miles south of Arbuckle, Sacramento River Watershed, Sacramento Valley.
91
Comment
CDA14215
Melica californica
G. F. Hrusa
1993-5-2
10859
Colusa
Frenzel Creek Research Natural Area; Mendocino National Forest. Small colony of several clumps on lower NW facing slopes in mid-canyon of Frenzel Creek, tributary of Little Stony Creek. Scattered among openings in sparse Quercus durata chaparral. Perennial.
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
CHSC79629
Melica californica
B. Castro; L. P. Janeway
2000-5-4
1132
Colusa
Vicinity of Sites, Sites-Lodoga Rd, and Grapevine Creek.
268
Comment
UCD82124
Melica californica
Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth
2009-5-20
5653
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
CHSC101644
Melica geyeri var. geyeri
David W. Isle
2003-6-3
1666
Colusa
Mendocino National Forest; in meadow adjacent creek in Green Flat Campground; 1 mile N-NE of Horse Rock and 1.5 miles SE of Goat Rock.
1170
Comment
UCD57334
Melica torreyana
Diane Hickson
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
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
RSA724820
Melilotus albus
L. Ahart
2006-9-26
13349
Colusa
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 mils east of Maxwell.
24
Comment
UCD72468
Melilotus albus
Ellen Dean; J. Alderson, N. Voegtly, and C. Thomsen
2007-5-12
3802
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
UCD72476
Melilotus albus
Ellen Dean; J. Alderson, N. Voegtly, and C. Thomsen
2007-5-12
3810
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
UCD169976
Melilotus officinalis
G. F. Hrusa
1999-5-16
15050
Colusa
Little Stony Creek.
457
Comment
POM62477
Mentha canadensis
Roxana Stinchfield
1918-7-8
382
Colusa
Sycamore Slough; Stinchfield Ranch
Comment
JEPS104403
Mentha spicata
Lowell Ahart
2003-10-23
10666
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
CHSC94314
Mentzelia laevicaulis
Lowell Ahart
2006-8-9
13109
Colusa
Gravel bar on the south side of Stony Creek, at Mine Camp, about 3 1/2 miles (air) west of Stonyford.
422
Comment
UCD38806
Mentzelia micrantha
Beecher Crampton
1958-5-19
4821
Colusa
Colusa County, 6.3 miles northeast of Ladoga.
Comment
UCD63030
Micranthes californica
Ellen Dean; C. Thomsen, N. Voegtly, J. Alderson, G. Harrington
2008-3-30
4682
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwys 20 and 16. Eula Canyon.
313
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
UCD162998
Micropus californicus
Craig D. Thomsen
2000-4-28
2183
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
UCR261642
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 north of intersection with East Ruby King Road
428
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
CHSC62919
Micropus californicus var. californicus
Vernon H. Oswald; Lowell Ahart
1994-4-6
6067 B
Colusa
Goat Mtn. Rd. at Sullivan Creek, 1.2 mi SW of Digger Pine Flat, S of Stonyford.
469
Comment
JEPS87666
Micropus californicus var. californicus
Vernon H. Oswald and Lowell Ahart
1994-4-6
6067 B
Colusa
s. Stonyford (Goat Mt. Rd. at Sullivan Creek, 1.2 mi. s.w. of Digger Pine Flat); Sullivan Creek
469
Comment
UC1049551
Micropus californicus var. californicus
Rimo Bacigalupi
1950-4-16
3104
Colusa
vicinity Colusa-Glenn County line (ridge above Red Bridge Camp and the confluence of the North amd Middle Forks of Stony Creek); Inner North Coast Ranges, Mendocino National Forest
579
Comment
CHSC114968
Microseris douglasii subsp. douglasii
Lowell Ahart
2015-4-1
20001
Colusa
Along Bear Valley Road, in Bear Valley, about 50 yards west of Bear Creek, about 6 miles south of Leesville, about 6 miles south of Highway 20.
395
Comment
JEPS124223
Microseris douglasii subsp. douglasii
Lowell Ahart
2015-4-1
20001
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
JEPS94219
Microseris douglasii subsp. douglasii
Vernon Oswald and Lowell Ahart
1998-5-7
8999
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
UC133492
Microseris douglasii subsp. douglasii
Katharine Brandegee
April 1889
Colusa
Leesville
Comment Read comments Aug 28 2012
UCD57108
Microseris douglasii subsp. douglasii
Gordon Harrington; Diana Hickson
2007-4-7
0021
Colusa
Colusa Co. Ca. BLM Payne Ranch, SW intersection of Hwy 16 and Hwy 20, approx. 1/5 to 1/2 mile W of Roadkill Cafe on old fuel break.
442
Comment
JEPS86634
Microseris nutans
L. R. Heckard with P. C. Silva, R. L. and M. Moe
1988-6-19
6694
Colusa
near road w Summit Springs (sw flank Snow Mountain); Colusa-Lake County Line, sw flank Snow Mountain
1550
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
CHSC86524
Microsteris gracilis
B. Castro; Beth Hendrickson
2003-3-19
1391
Colusa
Vicinity of Sites, hills N of the Sites-Lodoga Rd, and Stone Corral Creek.
198
Comment
UCD56675
Microsteris gracilis
Jack Alderson
2007-3-25
11
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.
571
Comment
UCD57339
Microsteris gracilis
Robin Testa
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
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
CDA41441
Mimulus douglasii
S. E. Schoenig
1998-4-24
98 -8
Colusa
Adjacent to clearing east of Brim Road, 1.5 miles west of Bear Valley Road.
Comment
JEPS110093
Mimulus floribundus
Lowell Ahart
2006-8-9
13151
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford
347
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
HSC85824
Mimulus guttatus
David Munger, Tallchief Comet, Jeff Dunk
1987-4-12
78
Colusa
Bear Valley
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
SEINET3450718
Mimulus guttatus
Unknown
2003-7-14
10383
Colusa
Williams, Williams, about 21 road miles southwest, open field on the south side of highway 20, about 2 miles southwest of the intersection of highway 20 and Bear Valley Road
520
Comment
UCD57657
Mimulus guttatus
Madeline Christopher; 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/Central part of ranch. Craig Canyon. North side of unimproved road in Craig Creek.
323
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
UC1051505
Mimulus layneae
Helen K. Sharsmith
1953-6-20
4290
Colusa
5 mi beyond Trough Springs (on road to Goat Mountain); Inner North Coast Ranges, Mendocino National Forest
1280
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
SEINET7881836
Mimulus layneae
Helen K. Sharsmith
1953-6-20
4290
Colusa
Mendocino Nat For ; In metamorphic rubble of forest clearing 5 mi beyond Trough Springs on rd to Goat Mt.
1280
Comment
JEPS3633
Mimulus microphyllus
H. L. Mason
1953-5-5
14518
Colusa
1/4 mi above confluence of Little Stony Creek and Trout Creek; Little Stony Creek drainage
670
Comment
UC71647
Mimulus microphyllus
Miss Alice King
1905-1
Colusa
College City
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
JEPS82743
Mimulus nudatus
L. R. Heckard and J. C. Hickman
1984-4-6
6149
Colusa
just e Lake County line (along route 20)
Comment
UCD82576
Mimulus nudatus
Craig Thomsen
2008-6-12
2766
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
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
RSA718048
Mimulus pilosus
L. Ahart
2006-8-9
13105
Colusa
On the south side of Stony Creek, at Mine Camp, about 3.5 miles (air) west of stonyford.
422
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
HSC72160
Minuartia douglasii
J. P. Smith, Thomas W. Nelson, Jane P. Nelson
1978-4-2
9535
Colusa
Bear Valley Rd., 1.3 mi. from its junction with Hwy. 20
366
Comment
UC1613426
Minuartia douglasii
Charles M. Belshaw
1937-4-25
2876
Colusa
vicinity of Cook's Spring (Devil's Ridge); Inner N. Coast Range, Devil's Ridge
Comment
UCD57104
Minuartia douglasii
Gordon Harrington; Diana Hickson
2007-4-7
0025
Colusa
BLM Payne Ranch, SW of intersection of Hwy 16 and Hwy 20, ca .5 mi. W of Roadkill Cafe, N. of Thompson Creek.
439
Comment
SFV8394
Minuartia douglasii
I. Batat
1973-4-15
24
Colusa
1.4 miles west of Bear Valley Road on Bartlett Springs Road, about 14 miles northeast of Clear Lake.
412
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
JEPS15565
Minuartia nuttallii subsp. gregaria
G. Thomas Robbins with L. R. Heckard
1956-7-25
3716
Colusa
slope above Dark Hollow Creek (a tributary of Middle Fork Stony Creek) (on s flank of mt., at lower edge of cirque between Snow Mt. West and Snow Mt. East); Snow Mt. East
1981
Comment
JEPS73512
Minuartia nuttallii subsp. gregaria
L. R. Heckard
1972-7-10
3130
Colusa
overlooking and 3 mi nw Fouts Springs (promontory on se corner); Snow Mt.
1828
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
UC903048
Mirabilis greenei
Ethel Crum
1932-5-8
1454
Colusa
Stonyford North Coast Ranges (southern extension of ranges)
426
Comment
CHSC106248
Monardella villosa
B. Castro; L. P. Janeway
2001-6-3
1261
Colusa
Inner North Coast Ranges. 'Til Jones Spring' at headwaters of Freshwater Branch of E. Fork Sulphur Ck, 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. Just downslope from Walker Ridge Rd., in opening in surrounding serpentine chaparral.
822
Comment
SEINET10582138
Monardella villosa
A. Graff
1993-7-25
Graff 367
Colusa
Bear Valley Rd., 2.2 miles north of Rte. 20, on right road cut. Locally infrequent on sandstone cliff, beneath Pinus coulteri, Quercus agrifolia, Arctostaphylos, sp. Past bloom.
Comment
UC883639
Monardella villosa subsp. villosa
A. A. Heller
1916-6-6
12355
Colusa
Coast Range on the grade about 3 miles west of Leesville
Comment
UCD82537
Monardella villosa subsp. villosa
Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth
2009-5-20
5690
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
JEPS35220
Monolopia major
Ruth Johnson
1915-4-6
Colusa
College City
Comment
SFV12204
Monolopia major
J. M. Tucker
1968-5-4
4109
Colusa
Bear Valley, middle of valley floor, 10 miles (by road) northwest of junction of Bear Valley Road and State Highway 20.
396
Comment
UC1056271
Muhlenbergia rigens
Rimo Bacigalupi and Arthur Holmgren
1950-4-26
3166
Colusa
eight mi nw Maxwell (along road to Sites, in canyon between forst hills on extreme w edge of valley); Sacramento Valley
Comment
CAS-BOT-BC83283
Myosurus minimus
James Jokerst
1986-5-6
2300
Colusa
Near Lurline Creek.
41
Comment
POM312436
Myosurus minimus subsp. apus
H. L. Mason
1953-4-5
14510 -a
Colusa
3 miles east of Maxwell
Comment
UC1028302
Myosurus sessilis
George B. Rossbach
1955-4-9
271
Colusa
3 mi e Maxwell (Sacramento Valley); Sacramento Valley
18
Comment
CAS-BOT-BC456163
Najas guadalupensis
Herbert L. Mason; Verne Grant
1946-8-15
13008
Colusa
Two miles west of Colusa on Williams highway by bridge
Comment
CHSC49580
Nassella cernua
Vernon Oswald
1984-5-2
1165
Colusa
Fouts Springs Rd. (M10) in the Mendocino National Forest, 4.6 mi w of Stonyford.
487
Comment
UCD87543
Nassella pulchra
Freed W. Hoffman
1942-4-23
2253
Colusa
Near Maxwell.
Comment
UCD87672
Nassella pulchra
D. Sanchez-Mata
1998-7-9
s.n.
Colusa
Bear Valley. Destanella Flat-Walker Ridge.
450
Comment
JEPS80184
Navarretia divaricata subsp. vividior
L. R. Heckard with J. Hickman
1980-7-3
5336
Colusa
ca 10 mi w Stonyford (just w of Summit Springs, Colusa-Lake County boundary); Snow Mt.
1548
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
JEPS117022
Navarretia heterandra
David Gowen
2008-5-24
920
Colusa
West side of Bear Valley Road, about 6.7 miles north of Hwy 20.
Comment
CHSC88556
Navarretia jepsonii
L. P. Janeway
2001-6-6
7127
Colusa
Inner North Coast Ranges. Deadshot Spring; about 1.9 km (air) east of Walker Ridge Road.
716
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
JEPS105730
Navarretia jepsonii
David Gowen
2004-5-18
81
Colusa
About 1.5 miles southeast of Stonyford at East Park Resevoir. Northwestern end, .3 mile SW of the dam that drains to Little Sony Creek.
Comment
UC908621
Navarretia jepsonii
Herbert L. Mason
1946-5-30
12814
Colusa
about 1 mi e Lake County line (w Colusa County); Leesville Grade
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
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
CHSC107942
Navarretia leucocephala subsp. leucocephala
B. Castro; L. Janeway
2011-4-27
1866
Colusa
Sacramento Valley. Extreme west edge of Sacramento Valley; 5 air mi NW of Maxwell, 0.8 mi southeast of Funks Reservoir and 0.3 mi northeast of Tehama-Colusa Canal. At SW end of vernally moist swale which extends northeast of large +- saline/alkaline wetland/ marsh, in drying vernal pool bottom.
48
Comment
POM64861
Navarretia leucocephala subsp. leucocephala
Roxana Stinchfield
1916-7-11
449
Colusa
Colusa - Williams Road at Trough
Comment
UC963802
Navarretia leucocephala subsp. leucocephala
Herbert L. Mason
1945-7-11
12646
Colusa
3 mi above Colusa (Butte Lodge Outing Club, Butte Creek); Butte Creek
Comment
UCD84439
Navarretia mellita
Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk
2010-6-2
6049
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
CDA40123
Navarretia nigelliformis
D. Brown
1986-6-3
s.n.
Colusa
County road southwest of Williams.
0
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
CHSC79545
Navarretia nigelliformis subsp. nigelliformis
B. Castro; L. P. Janeway
2000-5-1
1103
Colusa
Vicinity of Sites, hills S of the Sites-Lodoga Rd, and Grapevine Creek.
204
Comment
CHSC85965
Navarretia nigelliformis subsp. nigelliformis
Jenny Marr; Heidi West, Joyce Lacey-Rickert, Caroline Warren
1998-5-8
Colusa
Vicinity of Sites and Antelope Valley.
137
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
UCD66915
Navarretia nigelliformis subsp. nigelliformis
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. Northwest of Eula Canyon and southwest of Cowboy Camp on the west side of Bear Creek. Ridge to the north of spring box.
365
Comment
CAS-BOT-BC233594
Navarretia pubescens
J. Clausen
1935-5-20
1014
Colusa
18 miles W of Williams on Bartlett Springs Road
Comment
UC584174
Navarretia pubescens
J. Clausen
1935-5-20
1014
Colusa
18 mi w Williams (on Bartlett Springs road)
Comment
UCD82118
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
JEPS105729
Navarretia tagetina
David Gowen
2004-5-18
83
Colusa
About 1.5 miles southeast of Stonyford at East Park Resevoir. Northwestern end, 1/3 mile W of the dam that drains to Little Stony Creek.
Comment
POM64859
Navarretia viscidula
Roxana Stinchfield
1916-6-18
301
Colusa
Timber near College City
Comment
CHSC62937
Nemophila heterophylla
Vernon H. Oswald; Lowell Ahart
1994-4-6
6058
Colusa
Goat Mtn. Rd. 0.1 mi NE of Digger Pine Flat, S of Stonyford. Growing in gravelly soil of a roadside bank.
463
Comment
CHSC77935
Nemophila heterophylla
Beth Hendrickson; Heidi West
1999-3-23
Colusa
Vicinity of Antelope Valley, Funks Creek, and Golden Gate.
137
Comment
UC595049
Nemophila heterophylla
Annetta Carter
1938-5-8
1384
Colusa
6.6 mi s Lodoga; s of Lodoga
Comment
UC606895
Nemophila heterophylla
L. Constance
1938-4-22
2146
Colusa
Lower Lake-Williams Rd 4 mi e Lake-Colusa LIne (on Cache Creek near Wilbur Springs); Inner North Coast Ranges, Cache Creek nr Wilbur Springs
365
Comment
UCD66587
Nemophila heterophylla
Craig D. Thomsen
2000-4-12
2158
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
UCR206395
Nemophila heterophylla
George K. Helmkamp, E. A. Helmkamp
2009-3-11
14372
Colusa
Inner North Coast Range Foothills, along CA-20, 14.3 miles southwest of Williams
375
Comment
UCR206667
Nemophila heterophylla
George K. Helmkamp, E. A. Helmkamp
2009-3-17
14396
Colusa
Inner North Coast Ranges Foothills, along CA-16 and Bear Creek, 7.0 miles south of the junction with CA-20; just north of the Yolo County line
194
Comment
HSC87763
Nemophila menziesii
Stephen Westergaard
1967-4-29
12
Colusa
Bear Valley, 5 mi. N of Hwy. 20
91
Comment
UCSB23986
Nemophila menziesii
Masero, Ann
1967-2-12
Colusa
Along roadside of Wilber Springs Road; 1.4 miles south of Wilber Springs; in Northern inner Coastal Ranges
548
Comment
CHSC70890
Nemophila menziesii var. menziesii
Vernon Oswald; Lowell Ahart
1998-4-21
8949
Colusa
Rd. 401 1.8 mi north of Grapevine Pass on the Sites-Lodoga Rd.
472
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
UCD163210
Nemophila pedunculata
Craig D. Thomsen
2000-3-31
2103
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
CHSC112643
Nicotiana acuminata var. multiflora
Lowell Ahart
2013-10-1
19084
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-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
RSA730238
Nicotiana glauca
Richard R. Halse
2007-3-25
7123
Colusa
Along State Hwy 20, ca 7.8 miles northeast of its junction with State Hwy 16, at base of Salt Canyon. (WGS84)
100
Comment
UCR206398
Nicotiana glauca
George K. Helmkamp, E. A. Helmkamp
2009-3-11
14379
Colusa
Inner North Coast Range Foothills, along CA-20, 9.7 miles southwest of Williams beside Salt Creek
107
Comment
UC194932
Nicotiana quadrivalvis
H. M. Hall
1916-6-16
10269
Colusa
near Arbuckle (Colusa to Woodland)
Comment
UC71628
Nuttallanthus texanus
Miss Alice King
1905-1
Colusa
College City
Comment
UCD66934
Orobanche bulbosa
Ellen Dean; G. Harrington, J. Alderson, E. Bayon, R. Willmarth
2008-6-8
5083
Colusa
BLM Payne Ranch. Lands to the SW of jct of Hwys 16 and 20. Northwestern part of ranch, along trail that follows the border of Lake and Colusa Counties. South of junction with trail that heads down to the headwaters of Thompson Creek.
568
Comment
UC1187361
Orobanche californica subsp. grayana
Herbert L. Mason
1945-7-11
12647
Colusa
Near Butte Creek; Butte Lodge Outing Club, 3 miles above Colusa.
Comment
JEPS81407
Orobanche pinorum
L. R. Heckard and J. C. Hickman
1982-7-9
6014
Colusa
Colusa-Lake County Boundary: Near junction of Horse Glade along road to Lookout, Goat Mt.
Comment
CAS-BOT-BC502948
Orobanche vallicola
Roxana Stinchfield
1916-7-12
475
Colusa
Sycamore Slough
Comment
RSA516500
Orthocarpus lithospermoides var. bicolor
W. L. Jepson
1938-6-9
18964
Colusa
Mts. between Indian Valley and Bear Valley. Btw. Lake Co. and Colusa Co.
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
UC1552843
Packera clevelandii
Frederica Bowcutt
1985-6-19
598
Colusa
about 2 mi nw Wilbur Hot Springs (just sw of Bear Valley); Wilbur Springs Quad. 15'
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
UC1299444
Packera greenei
Freed W. Hoffman
1947-6-19
1670
Colusa
Cooks Springs, w Colusa County North Coast Ranges
Comment
JEPS110410
Panicum capillare
Lowell Ahart
2006-8-22
13222
Colusa
South side of Stony Creek, about 100 yards west of the bridge across Stony Creek, just north of Stonyford
349
Comment
UCD32923
Panicum capillare subsp. hillmanii
Beecher Crampton
1965-7-8
7446
Colusa
Colusa County, 1 mile south of Sycamore.
Comment
SEINET238367
Parapholis incurva
Beecher Crampton
1953-4-29
1143
Colusa
2 miles east of Maxwell.
Comment
UC1027193
Parvisedum pentandrum
Herbert L. Mason
1953-5-4
Colusa
Little Stony Creek Road 0.25 mi above junction of Little Stony Creek and Trout Creek (Inner North Coast Ranges); , Little Stony Creek Road
609
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
JEPS110214
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
POM198505
Paspalum distichum
Roxana Stinchfield
1916-7-11
454
Colusa
Williams Road-the 'Trough'
Comment
UCD88914
Paspalum distichum
K. Esau; D. Hartmann
1941-7-17
s.n.
Colusa
near Williams.
Comment
UC1613496
Pectocarya penicillata
Charles M. Belshaw
1937-4-25
2840
Colusa
vicinity of Cook's Spring (Inner North Coast Ranges, Devil's Ridge); Inner North Coast Ranges, Devil's Ridge
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
CHSC62850
Pedicularis densiflora
Vernon H. Oswald
1994-3-23
6012
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
RSA401941B
Pedicularis densiflora
Terry Roth
1979-4-14
9
Colusa
[No location data on label]
1067
Comment
RSA589938
Pedicularis densiflora
Michael A. Vincent, Robert M. Rhode
1996-3-30
7304
Colusa
Along Brim Road, 2.9 mi W jct Bear Valley Rd.
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
UCD66581
Pediomelum californicum
Craig D. Thomsen
2001-5-24
2526
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
UCD66694
Pediomelum californicum
Craig D. Thomsen
2000-6-23
2379
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, about 1/8 of a mile east of Vista Point.
325
Comment
CHSC1851
Penstemon centranthifolius
E. Walker
1932-4-18
Colusa
Stonyford.
365
Comment
SEINET12327201
Penstemon heterophyllus
C. C. Freeman, Wetter, M. A.
1983-1
1891
Colusa
2.2 mi NNE of the jct of CA 20 & 16 in the foothills of the Sierra Cascades
Comment
UCD38809
Penstemon heterophyllus
Beecher Crampton
1958-5-19
4805
Colusa
Colusa County, Ladoga.
Comment
UCSB6183
Penstemon heterophyllus
Keator, Glenn
1958-6-17
Colusa
Near Bartlett Springs
Comment
UCR206380
Penstemon heterophyllus subsp. purdyi
George K. Helmkamp, E. A. Helmkamp
2009-5-20
14756
Colusa
Inner North Coast Ranges, along CA-16, 1.8 miles north of the Yolo County line
271
Comment
CAS-BOT-BC240290
Penstemon heterophyllus var. purdyi
Ellen Dean; G. Harrington; C. Thomsen; Chiao-Yi Cheng; R. Wilmarth
2009-5-20
5674
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
853
Comment
UC125238
Penstemon purpusii
Katharine Brandegee
1892-8-24
Colusa
Snow Mountain near Monument; Snow Mountain near the Monument
Comment
UCD124198
Penstemon purpusii
A. M. Shapiro
1994-6-12
s.n.
Colusa
at road junction just below summit of Goat Mountain.
Comment
JEPS94162
Pentachaeta exilis
Vernon Oswald and Lowell Ahart
1998-4-21
8947
Colusa
bordering Goat Mt. Rd. 0.2 mi. s.w. of Stonyford-Lodoga Rd.
390
Comment
CDA8447
Pentachaeta exilis
N. van Kleeck, Willa May Lowary
1970-4-18
Colusa
Bear Valley, just south of Ladoga.
0
Comment
CAS-BOT-BC77144
Pentagramma triangularis subsp. triangularis
Roxana S. Ferris
1917-4-14
559
Colusa
Arbuckle - Rumsey Road, foothills 7 mi. west of Arbuckle
Comment
UCD61454
Perideridia kelloggii
Ellen Dean; G. Harrington, N. Voegtly, J. Alderson, C. Thomsen
2007-6-24
3900
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
UCR281727
Perideridia kelloggii
David Isle, Frank Pendell
2014-6-16
2135
Colusa
North Coast Range, c. 2 miles west of Stonyford on the Pendell Ranch, southeast of the home of Frank and Sheri Pendell c. 0.25 mile and northwest of the Stonyford Cemetary, c. 200 yards
384
Comment
JEPS80375
Perideridia oregana
L. R. Heckard and J. Hickman
1981-6-22
5608
Colusa
East Peak Snow Mt. (s side of e ridge)
1950
Comment
SBBG119882
Persicaria punctata
L. Ahart
2006-8-9
13133
Colusa
N side and under the bridge across Stony Crk, just N of Stonyford
347
Comment
JEPS2272
Phacelia ciliata var. ciliata
Ruth Johnson
1915-4-6
Colusa
College City
Comment
RSA794842
Phacelia distans
D. Isle
2008-4-9
1934
Colusa
Reese Place Duck Club (4498 2 Mile Road); approx. 4 miles northeast of Maxwell.
30
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
JEPS73508
Phacelia egena
L. R. Heckard
1972-7-10
3125
Colusa
overlooking and 3 mi nw Fouts Springs (near promontory on se corner of mt.); Snow Mt.
1828
Comment
UC73693
Phacelia egena
Miss M. Alice King
1905-1
Colusa
near College City; Sacramento Valley
Comment
UC1051762
Phacelia egena
L. R. Heckard
1953-4-12
S- 136
Colusa
University of California Botanical Garden
Comment
HSC45747
Phacelia heterophylla
Stephen Plant
1978-4-22
205
Colusa
Bear Valley Rd., 1.5 mi. from its junction with Hwy. 20
412
Comment
SEINET7096745
Phacelia heterophylla subsp. virgata
A. G. Vestal
1955-4-5
s.n.
Colusa
Steep south of facing bank ca. 1/3 mile into Colusa National Wildlife Refuge on Route 20.NAD27, 39? deg. 09' 09ao, -122?_ 11ao (converted to WGS84 decimal degrees) UTM Zone 10, 570301mE, 4333799mN.
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
CHSC60747
Phacelia imbricata subsp. imbricata
Vernon H. Oswald; Lowell Ahart
1993-5-27
5430
Colusa
Sites-Lodoga Rd. ca. 0.4 mi W of Grapevine Pass (4.6 road mi E of Lodoga).
481
Comment
CHSC79767
Phacelia imbricata subsp. imbricata
L. P. Janeway; B. Castro
2000-5-2
6696
Colusa
Vicinity of Grapevine Creek and Sites-Lodoga Road.
231
Comment
UC1051793
Phacelia mutabilis
L. R. Heckard and C. R. Bell
1951-6-13
170
Colusa
n slope of mt. Mendocino National Forest, Goat Mountain (ne of Bartlett Springs, along road from Bear Creek to Fouts Springs)
Comment
CDA12020
Phacelia tanacetifolia
G. F. Hrusa
1990-4-8
7671
Colusa
North Coast Biodiversity Arena; Hwy 16 approx. 10 m. N of Rumsey, along Cache Creek.
198
Comment Read comments Jul 24 2009
RSA799178
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 mi southeast of Sites.
93
Comment
UCD164156
Phacelia tanacetifolia
Craig Thomsen
2008-4-7
2726
Colusa
Bear Creek Canyon, along Bear Valley Rd. about 0.75 mile north of junction with Hwy 20.
Comment
CHSC107954
Phalaris aquatica
B. Castro; T. Boullion
2011-4-20
1832
Colusa
Sacramento Valley. Extreme W edge of Sacramento Valley; ca 5 air mi NW of Maxwell, 0.8 mi SE of Funks Reservoir and 800 ft east of Tehama-Colusa Canal. Ca 0.25 mi NW of large +- saline/alkaline wetland/marsh, just south of tilled grain field.
52
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
UCD67056
Phalaris paradoxa
Craig D. Thomsen
2008-5-23
2750
Colusa
BLM Payne Ranch. Lands to the SW of Hwy 16/20 intersection. About 1 mile south of Hwy 20 (south of Destanella Flat), 2.5 miles west of Hwy 16.
420
Comment
SEINET11587800
Phlox gracilis
Unknown
2009-3-11
14370
Colusa
Williams
Comment
RSA0115434
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
CHSC88597
Phragmites australis
L. P. Janeway; B. Castro
2001-6-3
7098
Colusa
Inner North Coast Ranges. Spring at Grapevine Flat, on top of Walker Ridge about 0.8 km east of Baldy Mountain.
884
Comment
JEPS106503
Phragmites australis
L. P. Janeway, B. Castro
2001-6-3
7098
Colusa
Inner North Coast Ranges. Spring at Grapevine Flat, on top of Walker Ridge about 0.8 km east of Baldy Mountain
884
Comment
POM63850
Phyla nodiflora
Roxana Stinchfield
1916-6-11
444
Colusa
Willow Lake near Colusa -Williams Road.
Comment
CHSC80450
Physalis lancifolia
Caroline Warren; Jenny Marr, Heidi West
1998-7-1
Colusa
Vicinity of Peterson Road and Funks Creek.
91
Comment
UC1004696
Physalis lancifolia
J. M. Tucker
1954-8-23
2746
Colusa
7 mi e Arbuckle (just n of rd e from Arbuckle)
Comment
UC985936
Physalis lancifolia
Herbert L. Mason and Verne Grant
1946-8-7
12979
Colusa
8 mi n Colusa; Butte Sink
Comment
CDA5826
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
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
CAS-BOT-BC76959
Pilularia americana
G. Thomas Robbins; S. Galen Smith
1950-4-15
1905
Colusa
Bear Valley
Comment
CDA580
Pinus sabiniana
G. D. Barbe, T. C. Fuller
1986-3-6
4259
Colusa
Steep bank below road grade, Leesville Grade, W of Williams.
0
Comment
CAS-BOT-BC242677
Piptatherum miliaceum
Ellen Dean; C. Thomsen; G. Harrington; Davis Botanical Society
2010-6-5
6082
Colusa
Walker Ridge. Along Walker Ridge Road on southern part of the ridge, south of turnoff to Indian Valley Reservoir
683
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
UCD63621
Piptatherum miliaceum
Craig D. Thomsen
2000-6-12
2371
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
POM163443
Plagiobothrys
Roxana S. Ferris
1926-4-21
6295
Colusa
3 mi W of Colusa..
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
CHSC81227
Plagiobothrys bracteatus
Caroline Warren; Joyce Lacey-Rickert
1998-5-8
Colusa
Vicinity of Sites and Antelope Creek.
91
Comment
RSA10709
Plagiobothrys bracteatus
C. B. Wolf
1928-5-8
2122
Colusa
Sacramento Valley. 3 mi. S of Arbuckle
Comment
CHSC86878
Plagiobothrys canescens
B. Castro
2003-3-28
1406
Colusa
Vicinity of Sites, hills N of the Sites-Lodoga Rd, and Stone Corral Creek.
256
Comment
SBBG126070
Plagiobothrys canescens
G. K. Helmkamp with E. A. Helmkamp
2009-5-20
14750
Colusa
St Hwy 16 at "Cowboy Camp" 1.0 mi S of jct with St Hwy 20, adjacent to Bear Crk
332
Comment
SD237378
Plagiobothrys canescens
G. K. Helmkamp, E. A. Helmkamp
2009-5-20
14750
Colusa
Inner North Coast Ranges: along CA-16 at Cowboy Cammp 1.0 mile south of the junction with CA-20, adjacent to Bear Creek (Glascock Mountain 7.5'Q)
331
Comment
SFV3146
Plagiobothrys canescens
A. Ongun
1961-4-16
37
Colusa
Bear Valley, 8 miles north of State Highway 20. Just south of wooden bridge.
Comment
CAS-BOT-BC478200
Plagiobothrys distantiflorus
Ann Howald
2003-3-25
2286
Colusa
Inner Coast Ranges: Indian Valley, west side of East Park Reservoir, c. 2.1 miles southeast of Stonyford, near diversion canal inflow to reservoir
369
Comment
CHSC79099
Plagiobothrys fulvus
B. Castro
2000-3-17
1040
Colusa
Vicinity of Sites, Antelope Valley, and Huffmaster Rd.
182
Comment
UCD58098
Plagiobothrys fulvus
Ellen Dean; C. Thomsen, S. Bledsoe, G. Harrington, D. Hickson
2007-3-25
3475
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
UCD80898
Plagiobothrys fulvus
Ellen Dean; w/ Destanella Flat Tour
2009-3-28
5298
Colusa
BLM Bear Creek (Payne) Ranch, lands to the SW of the jct of Hwys 16 and 20. Destanella Flat, just E of the Lake County border, ca. 3.4 road miles west of Hwy 16 along Hwy 20, south side of Hwy 20.
560
Comment
CHSC81232
Plagiobothrys greenei
Jenny Marr; Heidi West, Caroline Warren
1998-4-16
Colusa
Vicinity of Grapevine Creek and Antelope Valley.
134
Comment
CHSC89833
Plagiobothrys greenei
B. Castro; S. Innecken
2001-3-19
1214
Colusa
Vicinity of Maxwell, Golden Gate in Logan Ridge, Funks Reservoir, and the Glenn-Colusa canal.
48
Comment
CHSC31259
Plagiobothrys leptocladus
R. A. Schlising; K. R. Stern
1980-5-5
3580
Colusa
Southwest of Colusa, at Colusa National Wildlife Refuge; southwest cornerof refuge, north of Ware Road, in dried flats.
Comment
SD180603
Plagiobothrys leptocladus
Carol Witham, Jennifer Buck
2001-4-30
151 A
Colusa
2.0 miles south of the town of Colusa along Highway 20, east of Highway 20 and the Colusa Airport, Dolan Ranch site, pool # DOL001.
Comment
HSC47742
Plagiobothrys nothofulvus
Thomas W. Nelson, Jane P. Nelson
1978-4-29
3947
Colusa
Along Bear Valley Rd., 2.5 mi. from junction with Hwy. 20
366
Comment
JEPS81273
Plagiobothrys nothofulvus
L. R. Heckard and J. C. Hickman
1982-7-5
5883
Colusa
s side Snow Mt.; , Summit Springs
1500
Comment
POM163465
Plagiobothrys nothofulvus
Roxana S. Ferris
1926-4-23
6418
Colusa
At Mountain House on the Williams-Stonyford Road.
Comment
UCD120933
Plagiobothrys nothofulvus
E. Witharm
1998-4-17
5
Colusa
Bear Vly., Leesville-Lodoga Rd., 2 road miles NE from Bear Vly Rd. -- Leesville-Lodoga Rd. junction.
Comment
UC78102
Plagiobothrys shastensis
unknown
May 1886
Colusa
Stites
Comment
POM63665
Plagiobothrys stipitatus
Roxana S. Ferris
1917-4-12
533
Colusa
4 miles east of Williams.
Comment
JEPS123890
Plagiobothrys stipitatus var. micranthus
Lowell Ahart
2015-4-28
20115
Colusa
About 5 1/2 miles east of Maxwell.
Comment
SEINET3287497
Plagiobothrys stipitatus var. micranthus
George K. Helmkamp, E. A. Helmkamp
2009-3-11
14359
Colusa
Sacramento Valley; along CA-20, 1.6 miles southwest of Colusa and just north of Colusa National Wildlife Refuge.
15
Comment
UCD64508
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 mile west of Hwy 20/16 instersection, Colusa Co. milepost 3.00.
310
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
UCR212374
Plagiobothrys stipitatus var. micranthus
Ellen Dean, Craig D. Thomsen, N. Voegtly, J. Alderson, Gordon Harrington
2008-3-30
4661
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
CHSC86873
Plagiobothrys stipitatus var. stipitatus
B. Castro; Beth Hendrickson
2003-4-7
1416
Colusa
Vicinity of Sites, Antelope Valley, and Salt Lake.
94
Comment
UCD63009
Plagiobothrys stipitatus var. stipitatus
Ellen Dean; C. Thomsen, N. Voegtly, J. Alderson, G. 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.
319
Comment
HSC47746
Plagiobothrys tenellus
Thomas W. Nelson, Jane P. Nelson
1978-4-29
3941
Colusa
Along Bear Valley Rd., 2.5 mi. from junction with Hwy. 20
366
Comment
CAS-BOT-BC60828
Planodes virginica
L. R. Abrams
1928-5-8
12590
Colusa
2 miles south of Arbuckle.
Comment
UC1584634
Plantago coronopus
Dean W. Taylor
1988-3-24
9460
Colusa
ca 0.5 mi n Ware Road (on Ohm Road); Sacramento Valley, Colusa National Wildlife Refuge
24
Comment
UCD58124
Plantago coronopus
Ellen Dean; PLB 102 Class
2007-4-29
3720
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
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
CHSC59997
Plantago erecta
Linda A. Bell
1975-4-19
44
Colusa
Bear Valley Road, 1 mile north of State Highway 20.
Comment
HSC72167
Plantago erecta
J. P. Smith, Thomas W. Nelson, Jane P. Nelson
1978-4-2
9542
Colusa
Bear Valley Rd., 1.3 mi. from its junction with Hwy. 20
366
Comment
POM61338
Plantago erecta
Roxana S. Ferris
1917-4-12
496
Colusa
4 miles east of Williams.
Comment
UCD56910
Plantago erecta
Ellen Dean; Gordon Harrington and Kate Mawdsley
2007-3-30
3513
Colusa
BLM Payne Ranch. In Craig Canyon. Southwest of intersection of Hwy. 16 and Hwy. 20.
326
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
UCD82465
Plantago erecta
Craig Thomsen; G. Harrington
2009-5-12
2842
Colusa
Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd.
707
Comment
UCD72478
Plantago lanceolata
Ellen Dean; J. Alderson, N. Voegtly, and C. Thomsen
2007-5-12
3812
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
CAS-BOT-BC93146
Platanus racemosa
Roxana Stinchfield
1916-7-8
395
Colusa
Sycamore Slough. Stinchfield Ranch.
Comment
CHSC23473
Platystemon californicus
S. R. Poe
1974-3-30
29
Colusa
In fields adjacent to highway 20, 22.5 mi. w of williams.
Comment
CHSC79537
Platystemon californicus
Simona Altman
1999-4-3
53
Colusa
Bear Valley, Bear Valley Rd.
396
Comment
HSC83345
Platystemon californicus
Robin Brooks
1975-4-20
31
Colusa
Bear Valley Rd., 8.7 mi. N of State Hwy. 20
Comment
UCD96073
Platystemon californicus
Clinton C. Shock
1980-5-3
61
Colusa
Bear Valley, about 12 miles northwest of State Highway 20.
384
Comment
SEINET5718795
Platystemon californicus
Lois Goodman
1969-1
1
Colusa
9.5 miles north of State Hwy 20.
Comment
SFV8387
Platystemon californicus
L. E. Miller
1973-4-15
12
Colusa
Middle of Bear Valley, north of State Highway 20. Roadside.
Comment
UCD13217
Platystemon californicus
Steve Daniel
1986-4-13
10
Colusa
California. Colusa Co. Bear Valley, 7.6 mi No of jct of Bear Valley Rd. and hwy 20. Elev. ca. 1300 ft.
396
Comment
UCD14364
Platystemon californicus
L. Coats
1983-4-24
15
Colusa
Colusa Co.; along Bear Valley Road, 4.3 miles south of Bartlett Springs Road;
Comment
CHSC115381
Platystemon californicus var. californicus
Lowell Ahart
2015-4-1
20002
Colusa
Along Bear Valley Road, in Bear Valley, about 50 yards west of Bear Creek, about 6 miles south of Leesville, about 6 miles north of Highway 20. Inner North Coast Range.
395
Comment
POM158154
Platystemon californicus var. californicus
Lyman Benson
1935-3-27
6335
Colusa
2 mi W of Williams. Inner N Coast mtn range, Sacramento River watershed.
122
Comment
RSA388341
Platystemon californicus var. californicus
Linda Bell
1975-4-19
40
Colusa
Bear Valley Road, 1 mile north of State Highway 20
Comment
CHSC62948
Plectritis ciliosa subsp. ciliosa
Vernon H. Oswald; Lowell Ahart
1994-4-6
6066
Colusa
Goat Mtn. Rd. at Sullivan Creek, 1.2 mi SW of Digger Pine Flat, S of Stonyford.
469
Comment
JEPS87664
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
UC999845
Plectritis ciliosa subsp. ciliosa
S. C. Dyal, A. Carter, E. Crum
1938-5-7
683
Colusa
near Williams
Comment
UC999837
Plectritis ciliosa subsp. ciliosa
S. C. Dyal, A. Carter, E. Crum
1938-5-7
711
Colusa
Colusa County
Comment
CHSC86875
Plectritis macrocera
B. Castro
2003-4-1
1410
Colusa
Vicinity of Sites, hills N of the Sites-Lodoga Rd, and Stone Corral Creek. On cutbank of dirt road which contours along hillside.
185
Comment
JEPS94195
Plectritis macrocera
Vernon Oswald and Lowell Ahart
1998-5-7
9007
Colusa
Bartlett Springs Rd. 2.1 mi. w. of Bear Valley Rd., 0.8 mi. e. of Sawtelle Valley & Grapevine Flat rds.
524
Comment
SEINET3287538
Poa annua
George K. Helmkamp, E. A. Helmkamp
2009-1-31
14322
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
UCR206675
Poa annua
George K. Helmkamp, E. A. Helmkamp
2009-1-31
14322
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
UCR206852
Poa annua
George K. Helmkamp, E. A. Helmkamp
2009-3-11
14360
Colusa
Sacramento Valley, along CA-20, 1.6 miles southwest of Colusa and just north of Colusa National Wildlife Refuge
15
Comment
CHSC57562
Poa bulbosa
Steven Triano
1987-4-4
16
Colusa
Salt Canyon, n side of Salt Creek, ca. 40 ft s of Hwy 20, 11 mi wsw of Williams.
143
Comment
UCD82444
Poa howellii
Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth
2009-5-20
5661
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.
861
Comment
UCD82624
Poa pratensis
Craig Thomsen; G. Harrington
2009-5-12
2894
Colusa
Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd.
707
Comment
JEPS80373
Poa secunda subsp. secunda
L. R. Heckard and J. Hickman
1981-6-22
5606
Colusa
s side of e ridge of E Peak Snow Mt
1950
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
JEPS68348
Polanisia dodecandra subsp. trachysperma
L. R. Heckard with R. Bacigalupi and B. Doren
1971-9-9
2788
Colusa
ca. 2 mi. n.w. Sites
243
Comment
CDA22742
Polygonum amphibium var. emersum
P. Steinbaugh, Goodwin
1932-10-1
Colusa
Near Grand Island.
0
Comment
CHSC85960
Polygonum aviculare
Jenny Marr; Caroline Warren
1998-5-4
Colusa
Vicinity of Sites, Stone Corral Creek, and Antelope Valley.
106
Comment
JEPS80124
Polygonum bistortoides
L. R. Heckard and J. Hickman
1980-7-1
5282
Colusa
cirque between East Peak and West Peak (ca 10 mi w of Stonyford); Snow Mt.
2042
Comment
UC1299697
Polygonum sawatchense subsp. sawatchense
Freed W. Hoffman
1948-6-27
2528
Colusa
8.6 mi sw Fouts Spring (w Colusa Co.); Upper Letts Valley
1310
Comment
CHSC107163
Polypogon maritimus
L. P. Janeway; B. Castro
2011-5-19
10281 A
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. Large +- alkaline vernal pool/marsh; mucky clay soil. At edge of deepest west end of the marsh in a large patch of Juncus balticus, at the edge of the water line.
49
Comment
CHSC94413
Polypogon maritimus
Lowell Ahart
2006-8-9
13171
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
347
Comment
UCD67067
Polypogon maritimus
Ellen Dean; G. Harrington, J. Alderson, E. Bayon, R. Willmarth
2008-6-8
5095
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
UCD72472
Polypogon maritimus
Ellen Dean; J. Alderson, N. Voegtly, and C. Thomsen
2007-5-12
3806
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.
259
Comment
CAS-BOT-BC232541
Polypogon monspeliensis
A. A. Heller
1902-5-19
5570
Colusa
Near Colusa
Comment
CHSC107161
Polypogon monspeliensis
L. P. Janeway; B. Castro
2011-5-19
10281 B
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. Large +- alkaline vernal pool/marsh; mucky clay soil. At edge of deepest west end of the marsh in a large patch of Juncus balticus, at the edge of the water line.
49
Comment
CHSC77637
Polypogon monspeliensis
Heidi West; Caroline Warren, Julie Cunningham, Jenny Marr
1998-5-27
Colusa
Vicinity of Antelope Valley, Huffmaster Road, and Sites.
121
Comment
POM206735
Polypogon monspeliensis
A. A. Heller
1902-5-19
5570
Colusa
Near Colusa.
Comment
SD225721
Polypogon monspeliensis
Carol Witham, 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
Comment
SEINET10901036
Polypogon monspeliensis
Katherine L. Morris
1973-6-6
Morris 384
Colusa
Chaparral woodland and sparse oaks; on Hwy 20, 0.3 mi E of Lake County line.
Comment
HSC97043
Polypogon viridis
L. Ahart
2006-8-9
13159
Colusa
N side and under the bridge across Stony Creek, just N of Stonyford.
348
Comment
CHSC116676
Polystichum imbricans subsp. curtum
Lowell Ahart; John Dittes, Josephine Guardino
2016-2-14
20721
Colusa
On the east side of the gravel road, about 1/2 mile north of Letts Lake, about 1/2 mile south of thee large campground, about 13 miles (air) southwest of Stonyford.
966
Comment
HSC86897
Populus fremontii subsp. fremontii
Anthony J. Desch, Bryon Cariss
1988-4-17
36
Colusa
Goat Mountain Rd. 7 mi. W from its junction with Stonyford Rd.
Comment
UCD67085
Potamogeton diversifolius
Ellen Dean; 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. Spring-fed stock pond at base of uphill climb east side of ridge trail.
510
Comment
UCD35976
Potamogeton nodosus
Beecher Crampton
1963-8-5
6870
Colusa
1/4 mile E Cortena.
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
UCD164036
Poterium sanguisorba
Amber Flores
2016-4-9
2
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.
311
Comment
RSA0013900
Proboscidea louisianica
J. C. Roos
1948-9-2
4024
Colusa
West of Williams.
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
JEPS101449
Proboscidea lutea
Dean W. Taylor
1999-8-10
17295
Colusa
1 mile South of Williams, field between Interstate 5 and Delphos Road (old highway), 150 meters southeast of Husted Road freeway overcrossing
29
Comment
JEPS27877
Proboscidea lutea
Richard Snow
1958-8-3
671
Colusa
on road to Leesville near Highway 20
Comment
UCD163849
Prunus subcordata
Craig D. Thomsen
2000-6-7
2366
Colusa
Bear Valley. About 7 miles north of Hwy 20.
Comment
CHSC113053
Pseudognaphalium luteoalbum
Lowell Ahart
2013-10-1
19097
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
CHSC79457
Pseudognaphalium luteoalbum
B. Castro; L. P. Janeway
2000-5-4
1136
Colusa
Vicinity of Sites, Sites-Lodoga Rd, and Grapevine Creek.
249
Comment
CHSC101626
Psilocarphus brevissimus var. brevissimus
David W. Isle
2002-4-18
1657
Colusa
Mendocino National Forest; N of Fouts Springs, N of Chlorinator Building on road to Bathhouse Trail (Snow Mtn.) Edge of E-flowing ephemeral drainage in chamise site burned during 8/8/01 Trough Fire and part of Helicopter Hydromulch Study Plot.
524
Comment
JEPS18022
Psilocarphus brevissimus var. brevissimus
George B. Rossbach
1955-4-9
558
Colusa
3 mi e Maxwell; Sacramento Valley
18
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
CAS-BOT-BC361830
Psilocarphus oregonus
L. R. Abrams
1928-5-8
12589
Colusa
2 miles south of Arbuckle
Comment
UC1601294
Psilocarphus oregonus
T. S. Brandegee
Colusa
Williams
Comment
JEPS75721
Psilocarphus tenellus
L. R. Heckard
1974-9-9
3853
Colusa
just se Foutch Camp; Snow Mountain
1889
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
UCD135314
Psilocarphus tenellus
George F. Hrusa
1989-5-7
6087
Colusa
slopes on north side above Little Stony Creek approximately 4 meters from intersection of Ceder Mountain Road and Stonyford-Lodoga Road.
Comment
JEPS121101
Pterostegia drymarioides
Lowell Ahart
2013-5-1
18669
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
JEPS15216
Purshia tridentata var. tridentata
Rimo Bacigalupi with L. T. Dempster, Mrs. P. A. Munz and G. T. Robbins
1956-7-25
5747
Colusa
about 0.75 mi w Fouts Camp (s shoulder of Snow Mountains, Colusa-Lake County boundary); Snow Mountains
1905
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
SFV10851
Pyrola picta
M. L. Vincent
1968-6-6
789
Colusa
On road to Stony Ford from Goat Mountain, 2.4 miles west of Old Mills Campground.
1220
Comment
JEPS48934
Quercus X morehus
Thomas H. Jukes
1938-11-24
Colusa
Stonyford
Comment
UCD45291
Quercus berberidifolia
D. Sanchez-Mata
1998-7-10
s.n.
Colusa
Stonyford. Fouts Spring Road. Open interior live oak scrub chaparral (Quercus wislizenii var. frutescens) in deforested slopes.
Comment
CAS-BOT-BC86603
Quercus douglasii
Roxana S. Ferris
1917-4-14
580
Colusa
7 mi W of Arbuckle - Rumsey Road
Comment
SBBG25340
Quercus douglasii
S. C. Schank
1960-4-10
40
Colusa
several hundred feet from river, Bear Valley
Comment
SD236305
Quercus douglasii
G. K. Helmkamp, E. A. Helmkamp
2008-10-14
14258
Colusa
Sacramento Valley: along River Road (generally following the Sacramento River), 1.1 miles north of Colusa.
17
Comment
UCD45869
Quercus dumosa
Hans G. Jung
1976-4-17
6
Colusa
California, Colusa County: 2 miles west of Bear Valley, on north end of Walker Ridge, T15N, R6W, sec. 11. Elevation 1800 feet.
548
Comment Read comments Apr 18 2009
UCD45981
Quercus durata
D. Sanchez-Mata
1996-7-3
s.n.
Colusa
Williams. Walker Ridge. Wilburg Springs-Wintun Camp. Serpentine chaparral.
850
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
UCD84514
Quercus durata
Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk
2010-6-2
6065
Colusa
Colusa County. On Lake County border. Walker Ridge. Along Walker Ridge Road, between Cold Spring and Buck Flat.
971
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
UCSC010369
Quercus durata var. durata
Dylan M. Neubauer, Tim Forsell
2016-3-30
593
Colusa
(NCoRI) Walker Ridge, Bartlett Springs Road, 1.22 air-miles sse Baldy Mountain
899
Comment
JEPS75761
Quercus garryana var. breweri
L. R. Heckard, and R. Bacigalupi
1976-9-6
4450
Colusa
Fouts Camp-Summit Spring trail Snow Mt.
1615
Comment
JEPS82547
Quercus garryana var. breweri
L. R. Heckard
1983-7-27
6112
Colusa
s flank Snow Mt. (slopes around Summit Springs)
Comment
UCD67036
Quercus garryana var. breweri
Ellen Dean; Davis Botanical Society
2008-5-31
5017
Colusa
west of I-5 at Maxwell, Goat Mountain, ridge below summit off of Goat Mountain Road.
1734
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
RSA759171
Quercus lobata
Doug Goldman
2004-11-1
2916
Colusa
East side of Route 45 (Princeton Road).
23
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
SBBG111416
Quercus palmeri
R. Raiche
1990-12-2
Colusa
across Sulphur Crk from Wilbur Springs
Comment
SFV17753
Quercus palmeri
R. Raiche
1990-12-2
s. n.
Colusa
Acoss Sulphur Creek from Wilber Springs.
Comment
UCD14527
Quercus palmeri
Roger Raiche
1990-12-2
D
Colusa
California, Colusa Co.; across Sulphur Creek from Wilbur Springs;
Comment
JEPS73455
Quercus vacciniifolia
L. R. Heckard
1972-7-8
3056
Colusa
se of Snow Mt.; West Peak
1981
Comment
CDA15554
Quercus wislizeni var. frutescens
G. F. Hrusa
1998-11-7
14905
Colusa
North Coast Ranges; Above Fouts Springs on Trough Springs Rd. mi. 2.7.
Comment
UCD72390
Quercus wislizeni var. frutescens
Ellen Dean; G. Harrington, J. Alderson, E. Bayon, R. Willmarth
2008-6-8
5116
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
UCD84512
Quercus wislizeni var. frutescens
Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk
2010-6-2
6063
Colusa
Colusa County. On Lake County border. Walker Ridge. Along Walker Ridge Road, between Cold Spring and Buck Flat.
971
Comment
UCD82383
Rafinesquia californica
Craig Thomsen; G. Harrington
2009-5-12
2824
Colusa
Colusa County. Walker Ridge. South of spur road en route to Eaton Springs, about 1/2 mile east of Walker Ridge Rd. About 200 yds south of road (ravine with spring below).
822
Comment
JEPS80085
Ranunculus alismifolius
L. R. Heckard with J. Hickman
1979-6-16
5092
Colusa
about 1/2 mi s Milk Ranch (nw of West Peak, Snow Mt.)
2011
Comment
CDA19005
Ranunculus aquatilis var. aquatilis
R. Breckenridge
2000-9-25
PDR 958947
Colusa
East Park Reservoir, including coves on northern end of reservoir in the vicinity of Stonyford.
0
Comment
UCR47929
Ranunculus canus
Dave Read
1975-4-20
08
Colusa
Inner Coastal Ranges. Bear Valley Road, 8.7 miles north of intersection with State Highway 20
412
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
SEINET8699529
Ranunculus hebecarpus
R. R. Halse
2013-3-26
8739
Colusa
Along the Leesville Road ca 5.6 miles NW of its junction with CA Hwy 20, W of Williams.
157
Comment
UC72903
Ranunculus hebecarpus
Miss M. Alice King
1905-1
Colusa
near College City; Sacramento Valley
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
POM332451
Rhamnus californica
Thomas W. Nelson, Jane P. Nelson
1978-4-29
3961
Colusa
Along Bear Valley Rd., 2 miles from jct with Hwy 20.
366
Comment
HSC97351
Rhamnus ilicifolia
J. P. Smith, J. O. Sawyer
2007-9-2
12412
Colusa
River Rd. N of Colusa
20
Comment
JEPS79008
Rhamnus tomentella subsp. crassifolia
Edward Lee with C. Belshaw
1936-12-13
2612
Colusa
Stoneyford to Lodoga Road
Comment
JEPS95649
Rhamnus tomentella subsp. crassifolia
Vernon H. Oswald and L. Ahart
1999-6-22
9785
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
UC1299216
Rhamnus tomentella subsp. crassifolia
Freed W. Hoffman
1947-6-19
1641
Colusa
Cooks Springs, w Colusa County Cooks Springs
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
UCD117976
Rhododendron occidentale
A. T. Leiser
1985-5-19
LO
Colusa
Between 3-4 miles along Frenzel Creek as it parallels the road M5 from Lodoga to Goat Mtn. Frenzel Creek is on S. side of road and down 30-40 ft. Populations are scattered in full sun on both sides of the creek.
Comment
HSC71304
Rhus aromatica
Thomas W. Nelson, Jane Nelson
1979-4-12
4622
Colusa
Along Stony Creek below Digger Pine Campground
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
POM174573
Rhus trilobata var. quinata
Roxana S. Ferris
1926-4-23
6590
Colusa
2 miles from Stony Ford.
Comment
UC1299689
Ribes binominatum
Freed W. Hoffman
1948-6-26
2513
Colusa
n side Goat Mountain (Colusa Lake county line)
1630
Comment
JEPS15562
Ribes lobbii
G. Thomas Robbins with L. R. Heckard
1956-7-25
3718
Colusa
about 50 yards below summit Snow Mt. West (ridge between east and west peaks of Snow Mt.); Snow Mt.
2133
Comment
CAS-BOT-BC168901
Ribes malvaceum
Eric Peterson; Matt Foruria; Tom Ward
1995-4-2
59
Colusa
4.3 north on Walker Ridge Road from jct with Hwy 20
822
Comment
UCD80839
Ribes malvaceum
Jack Alderson
2009-2-21
20
Colusa
BLM Payne Ranch (Bear Creek Ranch), lands to the SW of intersection of Hwys 16 and 20. Brophy Canyon.
304
Comment
CHSC115751
Ribes malvaceum
David Isle
2015-6-20
2156
Colusa
North Coast Ranges: 4 mi W of Stonyford; SE of curve at culvert crossing just E of old dumpsite rd jct; uphill, 100-200' S of 18N01 in 2012 Mill Fire area chaparral. 10S -0533568E, 4357508N.
439
Comment
UCD119994
Ribes quercetorum
Ellen Dean; G. Harrington, J. Alderson
2011-12-30
7270
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
RSA0024715
Ribes roezlii
J. M. Tucker
1959-5-30
3524
Colusa
Ca. 1.25 miles northwest of Goat Mountain Lookout, Goat Mountain.
1768
Comment
CAS-BOT-BC362903
Rigiopappus leptocladus
Roxana S. Ferris
1926-4-23
6589
Colusa
Near Stonyford
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
POM174572
Rigiopappus leptocladus
Roxana S. Ferris
1926-4-23
6589
Colusa
Near Stonyford.
Comment
UC638693
Rigiopappus leptocladus
Ethel Crum
1938-5-7
2012
Colusa
4.2 mi n Rumsey (Comanche Hills, summit of ridge); Inner North Coast Range, summit of ridge, Comanche Hills
254
Comment
UCD67038
Rigiopappus leptocladus
Ellen Dean; Davis Botanical Society
2008-5-31
5018
Colusa
west of I-5 at Maxwell, Goat Mountain, ridge below summit off of Goat Mountain Road.
1734
Comment
UCR212316
Rigiopappus leptocladus
Craig D. Thomsen
2000-4-12
2131
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
JEPS80886
Rorippa curvipes var. truncata
L. R. Heckard and J. C. Hickman
1981-7-30
5733
Colusa
Trout Creek crossing se side Snow Mountain, Trout Creek crossing (se side Snow Mt.)
1828
Comment
CAS-BOT-BC147382
Rosa californica
Roxana Stinchfield
1916-7-8
384
Colusa
Sycamore Slough, Stinchfield Ranch
Comment
JEPS106501
Rosa californica
L. P. Janeway, B. Castro
2001-6-3
7097
Colusa
Inner North Coast Ranges. Spring at Grapevine Flat, on top of Walker Ridge about 0.8 km east of Baldy Mountain
884
Comment
UC72992
Rosa californica
H. P. Chandler
1905-9-14
Colusa
Princeton
Comment
JEPS80824
Rubus parviflorus
L. R. Heckard and J. C. Hickman
1981-7-31
5794
Colusa
e side Snow Mt.; e side Snow Mt., Dark Hollow Creek
1584
Comment
CAS-BOT-BC158728
Rubus ursinus
Roxana Stinchfield
1916-7-8
381
Colusa
Sycamore Slough, Stinchfield Ranch
Comment
JEPS75734
Rumex acetosella
L. R. Heckard
1974-9-9
3876
Colusa
se of Foutch Camp (just ne of rocky promontory); Snow Mt.
1798
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
UCD61463
Rumex crispus
Ellen Dean; G. Harrington, N. Voegtly, J. Alderson, C. Thomsen
2007-6-24
3909
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
CAS-BOT-BC421589
Rumex crispus
Roxana S. Ferris
1926-4-22
6284
Colusa
3 miles west of Colusa
Comment
UCR206365
Rumex pulcher
George K. Helmkamp, E. A. Helmkamp
2009-5-20
14745
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
UCD163344
Rumex salicifolius
Craig D. Thomsen
2007-7-31
s.n.
Colusa
Walker Ridge. East of Eaton Springs en route to Rathburn Mine.
Comment
UCD57287
Saccharum ravennae
Ellen Dean; C. Thomsen, S. Bledsoe, J. Alderson, M. Starbuck
2007-4-7
3658
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
UCR146703
Sagittaria
June McCaskill, Et al.
1954-8-9
363
Colusa
c. 1 mi east of Princeton and 500 yds. south of Glenn County line
23
Comment
UC1178890
Sagittaria latifolia
Herbert L. Mason
1945-9-19
12713
Colusa
1 mi n Colusa (on e side, Marshy bank of the Sacramento River); bank of the Sacramento River
Comment
UCD138041
Sagittaria latifolia
Herbert L. Mason
1945-9-19
12713
Colusa
Sacramento river, 1 mile north of Colusa on east side, below causeway.
Comment
UCD138036
Sagittaria montevidensis subsp. calycina
Herbert L. Mason; Verne Grant
1946-8-7
12981
Colusa
8 miles north of Colusa.
Comment
CHSC78976
Salicornia virginica
Vernon H. Oswald; Joseph G. Silveira
2000-9-29
9972
Colusa
Delevan National Wildlife Refuge.
15
Comment
CAS-BOT-BC103026
Salix bonplandiana
Roxana S. Ferris
1926-4-23
6401
Colusa
near Mountain House on Williams - Stonyford Road
Comment
CAS-BOT-BC102859
Salix breweri
C. Hart Merriam
1907-7-23
s.n.
Colusa
Cook Springs
Comment
CHSC70904
Salix breweri
Vernon H. Oswald; Lowell Ahart
1998-4-21
8944
Colusa
Stonyford-Lodoga Rd. 3.7 mi south of Stonyford.
384
Comment
UCD110780
Salix breweri
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
UCD162977
Salix breweri
Jack Major
1963-5-4
s.n.
Colusa
In stream, west of Bear Valley on Bartlett Springs Road. (Exact location unknown. Coordinates estimated by label maker.)
518
Comment
UCD57307
Salix breweri
Ellen Dean; C. Thomsen, S. Bledsoe, J. Alderson, M. Starbuck
2007-4-7
3678
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
UCD84434
Salix exigua
Jack Alderson
2009-4-8
32
Colusa
BLM Bear Creek Ranch (Previously Payne Ranch). Lands to the SW of jct of Hwys 16 and 20. Brophy Canyon.
304
Comment
CAS-BOT-BC107838
Salix gooddingii
Roxana Stinchfield
1916-7-7
397
Colusa
Sycamore slough near Sycamore
Comment
CHSC80068
Salix gooddingii
L. P. Janeway; B. Castro
2000-4-10
6662
Colusa
Vicinity of Lurline Creek and Sulphur Gap.
91
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
CHSC77954
Salix laevigata
Beth Hendrickson; B. Castro, L. P. Janeway, Mary Ann Griggs
1999-4-12
Colusa
Vicinity of Antelope Valley, Funks Creek, and Golden Gate.
97
Comment
UCD81258
Salix laevigata
Ellen Dean; G. Harrington, R. Willmarth, B. Rice, and C. Thomson
2009-4-8
5423
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
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
CDA12798
Salix lasiolepis
G. F. Hrusa
1996-2-26
12633
Colusa
Serpentine Flora of California; Margin of Little Stony Creek approx. 2 m. beyond intersection of Goat Mtn. Rd. and Stonyford-Lodoga Rd.
Comment
JEPS86636
Salix lasiolepis
L. R. Heckard with P. C. Silva, R. L. and M. Moe
1988-6-18
6686
Colusa
sw flank Snow Mt. (n side of West Peak)
2000
Comment
UCD164154
Salix lasiolepis
Craig Thomsen
1999-4-1
s.n.
Colusa
Bear Creek Canyon. Along Bear Creek, just north of Sulphur Creek confluence, next to Wilbur Bridge.
Comment
CHSC101023
Salix lasiolepis var. lasiolepis
John Dittes; Josephine Guardino
2008-3-14
1515
Colusa
Great Central Valley; Sacramento Valley; butween Butte Sink and Sacramento River, north of Sutter Buttes; ca. 1.6 air mile south of Gridley Road, ca. 1.1 air mile west of Drumheller Slough.
17
Comment
CHSC94432
Salix lasiolepis var. lasiolepis
Lowell Ahart
2006-8-9
13147
Colusa
Gravel bar, north side and 30 yards west of the bridge across Stony Creek, just north of Stonyford.
347
Comment
JEPS110140
Salix lasiolepis var. lasiolepis
Lowell Ahart
2006-8-9
13147
Colusa
Gravel bar, north side and 30 yards west of the bridge across Stony Creek, just north of Stonyford
347
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
CHSC86526
Salvia columbariae
B. Castro
2003-3-18
1388
Colusa
Vicinity of Sites, hills N of the Sites-Lodoga Rd, and Stone Corral Creek.
243
Comment
HSC87083
Salvia columbariae
L. Blackford, S. Branch, D. Malm
1988-4-16
48
Colusa
6.1 mi. on Walker Ridge Road off Hwy 20 at Blue Oak campground
732
Comment
JEPS62672
Salvia columbariae
R. F. Hoover
1938-4-24
3228
Colusa
ridge between Venado and Leesville (e of Leesville)
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
UCD125703
Salvia columbariae
Bob Zasoski
1967-5-6
25
Colusa
around 6 miles north from State Highway 20 on Bear Valley Road (to Leesville).
396
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
JEPS80782
Sambucus mexicana
L. R. Heckard and J. C. Hickman
1981-7-30
5755
Colusa
Trout Creek Snow Mt. (se side of mt.)
1600
Comment
JEPS228
Sanicula bipinnatifida
W. L. Jepson
1932-5-8
16273
Colusa
Lodoga; w Colusa Co.
Comment
UCD56944
Sanicula bipinnatifida
Ellen Dean; Gordon Harrington and Kate Mawdsley
2007-3-30
3546
Colusa
BLM Payne Ranch. On west side of Hwy. 16. 2 road miles south of intersection with Hwy. 20.
312
Comment
UCD57664
Sanicula crassicaulis
Erica A. Smith; 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. Along unimproved road, where road crosses Craig Creek.
313
Comment
UCD146697
Sanicula graveolens
G. F. Hrusa
1998-6-19
14633
Colusa
on NE side of Goat Mountain.
1710
Comment
UCD163232
Sanicula tuberosa
Craig D. Thomsen
2001-4-12
2437
Colusa
Bear Creek Botanical Management Area. CalTrans right-of-way along Hwy 20 (south side), about 1 mile west of Hwy 20/16 intersection (about 1/8 mile east of vista point).
345
Comment
UCD82861
Sanicula tuberosa
Gordon Harrington
2008-4-13
72
Colusa
BLM Payne Ranch. Slopes to the SW of junction of Hwy 16 and Hwy 20. E of unnamed creek (flowing now).
385
Comment
UCD163867
Schedonorus arundinaceus
Craig D. Thomsen
2001-5-31
2555
Colusa
Bear Creek Canyon, south of Bear Valley. About 4 miles north of Hwy 20.
Comment
UCD81232
Schedonorus arundinaceus
Ellen Dean; K. Mawdsley, B. Rice
2009-5-6
5569
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.
220
Comment
CAS-BOT-BC111366
Schoenoplectus acutus var. occidentalis
Roxana Judkins [later Mrs. Ferris q.v.] Stinchfield
1916-7-11
470
Colusa
Davis Tule near Sucamore Slough
Comment
UCD163854
Schoenoplectus pungens var. longispicatus
Craig D. Thomsen
2001-4-12
2471
Colusa
Bear Valley. About 7 miles north of Hwy 20.
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
CDA2621
Scirpus glaucus
M. R. Pryor
1947-5-1
Colusa
Grimes (col. near Biggs)
0
Comment
CDA417
Scirpus glaucus
Kingwill
1929-8-23
Colusa
0
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
UCR261651
Scleranthus annuus subsp. annuus
Ann Howald
2003-4-24
2318
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
UC769882
Scribneria bolanderi
R. F. Hoover
3207
Colusa
Upper Sand Creek
Comment
POM21047
Scrophularia californica
Roxana Stinchfield
1916-6-18
305
Colusa
Timber near College City
Comment
UC71646
Scrophularia californica
Miss Alice King
1905-1
Colusa
College City
Comment
JEPS73453
Scutellaria californica
L. R. Heckard
1972-7-8
3053
Colusa
on n side of ridge running se of Snow Mountain (West Peak); West Peak
2011
Comment
JEPS80801
Scutellaria californica
L. R. Heckard and J. C. Hickman
1981-7-30
5772
Colusa
heading up East Ridge of Snow Mountain, West Peak
1950
Comment
UCD66954
Scutellaria californica
Ellen Dean; Davis Botanical Society
2008-5-31
4998
Colusa
west of I-5 at Maxwell, along Goat Mountain Road following Little Stoney Creek, Little Stoney Creek Canyon.
414
Comment
CHSC79519
Scutellaria tuberosa
B. Castro; L. P. Janeway
2000-5-2
1108
Colusa
Vicinity of Sites, Sites-Lodoga Rd, and Grapevine Creek.
234
Comment
UC71637
Scutellaria tuberosa
Miss Alice King
1905-1
Colusa
College City
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
RSA700356
Senecio clevelandii
L. P. Janeway, B. Castro
2001-6-3
7103
Colusa
At Buck Flat: East side of Walker Ridge at head of Gaither Canyon; about 1.3 km. south-southeast of Baldy Mountain.
872
Comment
CHSC94415
Senecio sylvaticus
Lowell Ahart
2006-8-9
13158
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
347
Comment
JEPS110106
Senecio sylvaticus
Lowell Ahart
2006-8-9
13158
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford
347
Comment
CHSC6689
Senecio vulgaris
Marilyn Lee
1968-3-30
119
Colusa
North side of Hwy. 16 at junction of Hwy. 16 and Hwy. 20. Between Hwy. 16 and Cache Creek.
Comment
UCD58126
Senecio vulgaris
Ellen Dean; PLB 102 Class
2007-4-29
3722
Colusa
Payne Ranch. Lands to the SW of the junction of Hwy. 16 and Hwy. 20. Thompson Canyon, near junction with Craig Canyon. Thompson Creek.
362
Comment
CAS-BOT-BC364516
Senecio vulgaris
Roxana S. Ferris
1926-4-21
6273
Colusa
Sycamore Slough 2 miles west of Sycamore
Comment
CHSC94402
Setaria viridis
Lowell Ahart
2006-8-9
13137 A
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
347
Comment
UCD92837
Setaria viridis
Beecher Crampton
1958-6-26
4974
Colusa
along Grieve Road, 5.5 miles south of College City.
Comment
CHSC79528
Sidalcea diploscypha
B. Castro; L. P. Janeway
2000-5-1
1104 A
Colusa
Vicinity of Sites and Grapevine Creek.
365
Comment
JEPS120911
Sidalcea diploscypha
Lowell Ahart, John Dittes, Josephine Guardino
2013-4-26
18647
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
UCD23423
Sidalcea diploscypha
David Rhode
1977-4-30
22
Colusa
Bear Valley, 2.1 miles north of Wilbur Springs. Dry gravel, west facing slope in sparse valley grassland pasture.
Comment
CHSC45331
Sidalcea keckii
Vernon Oswald
1984-5-2
1164
Colusa
Along the access road on the e side of East Park Res. 0.3 mi n of Site-Lodoga Rd.
365
Comment
JEPS105737
Sidalcea keckii
David Gowen
2004-5-18
84
Colusa
About 1.5 miles south of Stonyford. Road shoulder on the east side.
Comment
JEPS116996
Sidalcea keckii
David Gowen
2008-5-24
922
Colusa
Sites Ladoga Rd., northeast of Ladoga, ca. 1.9 miles southwest of Grapevine Pass.
Comment
JEPS123189
Sidalcea keckii
David Gowen
2009-5-6
1014
Colusa
Eastside of Hwy 20, about 16 miles west of Williams, near milepost 6.42 (from county line?).
Comment
UC852801
Silene californica
A. A. Heller
1937-4-24
15351
Colusa
on Highway #20, 15 mi w Williams; w of Williams
Comment
POM914478
Silene californica
L. S. Rose
1936-4-27
36179
Colusa
11 miles NW of Rumsey.
305
Comment
UCD111674
Silene campanulata
Christopher Mallek
2008-1
s.n.
Colusa
Frenzel Creek.
654
Comment
CDA12223
Silene campanulata subsp. glandulosa
G. F. Hrusa
1993-5-2
10861
Colusa
Frenzel Creek Research Natural Area; Mid-canyon of Frenzel Creek, tributary of Little Stony Creek.
Comment
HSC45722
Silene gallica
M. Alcasas
1978-4-22
38
Colusa
Bear Valley Rd., 1.5 mi. from its junction with Hwy. 20
412
Comment
CAS-BOT-BC388980
Silene laciniata subsp. californica
Lewis S. Rose
1936-4-27
36179
Colusa
11 mi. NW. of Rumsey
304
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
SEINET8879658
Silene laciniata subsp. californica
R. R. Halse
2014-3-25
9036
Colusa
Along the Bear Valley Road, ca 1.8 miles WNW of its junction with State Hwy 20.
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
UCD23381
Silene laciniata subsp. californica
Beverly Ortiz
1978-4-8
16
Colusa
Rhizomes spreading horizontally beneath the ground, stems pubescent, flowers red. Moist soil, growing in a litter layer, partially shaded by shrubs, growing on flat on slope. 2 miles north of the intersection of Highway 16 and Highway 20.
408
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
JEPS83163
Sinapis alba
L. R. Heckard with J. Hickman
1980-7-3
5332 a
Colusa
SW Snow Montain, just W of Summit Springs
1548
Comment
UCR238925
Sinapis alba
George K. Helmkamp, E. A. Helmkamp
2012-2-9
18530
Colusa
Sacramento Valley, River Road, 7.1 miles north of Colusa; east side of Sacramento River
18
Comment
CAS-BOT-BC74903
Sinapis arvensis
Roxana S. Ferris
1917-4-12
513
Colusa
4 mile east of Williams.
Comment
CHSC110364
Sinapis arvensis
Richard R. Halse
2010-3-20
7826
Colusa
Along State Hwy 20 ca. 5.4 miles wwest of Colusa (junction of State Hwys 20 and 45).
17
Comment
UCD61438
Sisymbrium altissimum
Ellen Dean; G. Harrington, N. Voegtly, J. Alderson, C. Thomsen
2007-6-24
3883
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
UCD63623
Sisymbrium altissimum
Craig D. Thomsen
2008-3-21
2720
Colusa
BLM Payne Ranch. 0.25 mile south of intersection of Hwy 16 and Hwy 20. Between Bear Creek and Hwy 16.
Comment
CHSC115383
Sisymbrium orientale
Lowell Ahart
2015-4-1
19993
Colusa
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
HSC31314
Sisyrinchium bellum
Carter Schleicher
1974-5-4
27
Colusa
0.75 mi. from T junction of Walker Ridge Rd. and Indian Valley, near Clyde Mine
854
Comment
UCD64292
Sisyrinchium bellum
Craig D. Thomsen
2000-4-12
2134
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
UCD82502
Sisyrinchium bellum
Craig Thomsen; G. Harrington
2009-5-12
2861
Colusa
Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd.
710
Comment
HSC59568
Sisyrinchium bellum
Rick Lundquist
1979-4-14
22
Colusa
Bear Valley Rd., 13 mi. N of Hwy. 20
396
Comment
IRVC29851
Smilacina racemosa
Mark A. Elvin, Mark S. Brunell, David Isle
2006-8-3
5038
Colusa
Snow Mtn; Summit Spring Trail; between Snow Mtn West summit and Cedar Camp. Southern Northern Inner Coast Ranges
2012
Comment
JEPS80060
Smilacina racemosa
L. R. Heckard with J. Hickman
1979-6-15
5059
Colusa
saddle trail between east peak and west peak Snow Mt
2103
Comment
CHSC63425
Solanum elaeagnifolium
Vernon H. Oswald
1994-7-18
6411
Colusa
Near the S boundary of the Sacramento National Wildlife Refuge located S of Willows, on the S side of Cell 3 of Pool 11 bordering Hunters Creek. Along a levee road.
21
Comment
CHSC114061
Solanum parishii
Richard R. Halse
2012-3-29
8456
Colusa
Along State Hwy. 20 ca. 6.8 miles northeast of its junction with State Hwy16
176
Comment
CHSC57525
Solanum parishii
Shelly A. Kirn
1991-4-6
12
Colusa
Salt Canyon, n side of Salt Creek, Hwy 20, 11 mi wsw of Williams.
143
Comment
HSC41467
Solanum parishii
Richard Runyon
1977-4-24
35
Colusa
Along Walker Ridge Rd. above Barrel Springs Campground
701
Comment
HSC42017
Solanum parishii
M. A. Baker
1977-4-24
222
Colusa
Walker Ridge Rd. above Barrel Springs Campground
701
Comment
HSC62930
Solanum parishii
Kenneth Clark
1979-4-14
103
Colusa
Bear Valley Rd. 3.9 mi. N of State Rte. 20
412
Comment
NY821077
Solanum parishii
R. C. F. Bacigalupi
1950-4-25
3175
Colusa
"Grapevine Grade" to Lodoga, ten miles northwest of Sites
Comment
UCD57555
Solanum parishii
Andrew Pedersen; 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, at confluence with Craig Creek.
304
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
CDA6240
Solanum pseudocapsicum
M. H. Handley
1961-7-24
Colusa
0
Comment
CAS-BOT-BC157050
Solanum umbelliferum
R. S. Ferris
1917-4-14
590
Colusa
Along Sand Creek, Arbuckle - Rumsey Road
Comment
UC1733755
Solanum umbelliferum
Kay H. Beach
1940-5-16
658
Colusa
Colusa and Lake county line
Comment
JEPS105309
Solidago elongata
Dean W. Taylor
1994-10-7
14713
Colusa
Little Stony Creek along Goat Mountain Road 2.1 miles West from junction Lagoda-Stonyford Road,
426
Comment
JEPS127581
Solidago velutina subsp. californica
David Isle with Terril Wolt
2016-7-15
2168
Colusa
North Coast Ranges: ~5 1/2 miles W of Stonyford off S side Fouts Springs Road M10 (18N01.2). Also ~5/8 mile SE of M10 Junction with Trough Sp R Rd M5 (18N07).
Comment
UCD55462
Solidago velutina subsp. californica
Ellen Dean; Gordon Harrington
2006-10-6
3286
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.
381
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-BC390101
Spergularia bocconi
A. A. Heller
1916-6-9
12392
Colusa
Along the state highway near Colusa
Comment
CHSC29847
Spergularia macrotheca var. leucantha
K. R. Stern
1980-6-30
6658
Colusa
Vernal pool area, south border Colusa National Wildlife Refuge.
45
Comment
CHSC53948
Spergularia marina
Vernon H. Oswald
1991-4-21
4525
Colusa
Two Mile Rd, 3.7 mi south of Maxwell Colusa Rd. On a flat along edge of road through rice fields.
27
Comment
SEINET8883999
Spergularia marina
R. R. Halse
2012-3-28
8455
Colusa
Williams, along 5th Street between intersections with C and D Streets, near railroad tracks.
24
Comment
CHSC94290
Stachys ajugoides var. rigida
Lowell Ahart
2006-8-9
13091
Colusa
Gravel bar on the south side of Stony Creek, at Mine Camp, about 3 1/2 miles (air) west of Stonyford.
455
Comment
CHSC94516
Stachys ajugoides var. rigida
Lowell Ahart
2006-8-22
13235
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
347
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
CHSC106246
Stachys albens
B. Castro; L. P. Janeway
2001-6-3
1256
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.
880
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
JEPS120807
Stachys albens
Lowell Ahart
2013-10-1
19079
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
UCD55468
Stachys albens
Ellen Dean; Gordon Harrington
2006-10-6
3288
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
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
RSA0109095
Stachys pycnantha
L. Ahart
2006-8-9
13092
Colusa
Gravel bar on the south side of Stony Creek, at Mine Camp, about 3.5 miles (air) west of Stonyford.
455
Comment
RSA724895
Stachys rigida subsp. quercetorum
L. Ahart
2006-8-22
13235
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
348
Comment
UCD64273
Stellaria media
Craig D. Thomsen
2000-3-31
2074
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
CHSC94316
Stephanomeria paniculata
Lowell Ahart
2006-8-9
13099
Colusa
Gravel bar on the south side of Stony Creek, at Mine Camp, about 3 1/2 miles (air) west of Stonyford.
455
Comment
RSA703243
Stephanomeria virgata subsp. pleurocarpa
L. Ahart
2004-10-4
11424
Colusa
On the east side of Leesville Road, about 4.7 miles by road SE of the intersection of Bear Valley Road, Leesville Ladoga road and Leesville Road, NE of Bear Valley.
370
Comment
CHSC107966
Stipa pulchra
B. Castro; L. Janeway
2011-4-27
1869
Colusa
Sacramento Valley. Extreme W edge of Sacramento Valley; ca 5 air mi NW of Maxwell, 0.4 mi southeast of Funks Reservoir on top of N-trending ridge southeast of outlet toTehama-Colusa Canal. In grassy hills about 80 ft N of the canal.
74
Comment
UCD72374
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
UCD163238
Streptanthus breweri
Craig D. Thomsen
2000-6-23
2374
Colusa
Bear Creek Botanical Management Area. CalTrans right-of-way along Hwy 20 (south side), about 1 mile west of Hwy 20/16 intersection (about 1/8 mile east of vista point).
345
Comment
UCD164311
Streptanthus breweri
Ryan O'Dell
2010-7-1
s.n.
Colusa
UTM zone 10, 553253, 4318610. [UTM coordinates place this location along Bear Valley Rd., north of HWY 20.]
381
Comment
UCD38808
Streptanthus breweri
Beecher Crampton
1958-5-19
4812
Colusa
Colusa County, Little Stony Creek canyon, west of Ladoga.
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
JEPS75714
Streptanthus breweri
L. R. Heckard
1974-9-9
3839
Colusa
trail up from Summit Springs (bare w-facing slope, Colusa-Lake County line); Snow Mt.
1645
Comment
UC1292771
Streptanthus breweri
Freed W. Hoffman
2784
Colusa
N of road from Leesville to Bartlett Springs, along the summit between Colusa and Lake counties
Comment
UC1051693
Streptanthus breweri var. breweri
Helen K. Sharsmith
1953-6-18
4256
Colusa
Candy Bucket Spring Inner North Coast Ranges, Mendocino National Forest (road from Stoneyford to Mill Spring)
609
Comment
UC1552822
Streptanthus breweri var. breweri
Frederica Bowcutt
1985-5-10
510
Colusa
road bank along Bear Valley Rd about 3 mi se Wilbur Springs (1 mi w of Hwy 20); Wilbur Springs 15' Quad
Comment
UC956515
Streptanthus breweri var. breweri
Freed W. Hoffman
1948-6-28
Colusa
1.8 mi n Fouts Springs; Red Bridge
441
Comment
UCD57303
Streptanthus breweri var. breweri
Ellen Dean; C. Thomsen, S. Bledsoe, J. Alderson, M. Starbuck
2007-4-7
3674
Colusa
BLM Payne Ranch. Lands to the southwest of junction of Hwy. 20 and Hwy. 16. Thompson Canyon, near juncture with Craig Canyon. Above Thompson Creek.
366
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
UCD63121
Streptanthus breweri var. breweri
Ellen Dean; G. Harrington, C. Thomsen, S. Harrison
2008-5-18
4951
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
UCD66907
Streptanthus breweri var. breweri
Jack Alderson
2008-4-27
s.n.
Colusa
Payne Ranch (owned by BLM), lands to the SW of the intersection of Hwys 20 and 16. Slopes to the WNW of Cowboy Camp on the west side of Bear Creek.
427
Comment
SEINET11993369
Streptanthus breweri var. hesperidis
Unknown
1985-1
50460
Colusa
Walker Ridge, Brim Rd nr intersection W Walker Ridge Rd
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
UC1552823
Streptanthus glandulosus subsp. glandulosus
Frederica Bowcutt
1985-5-10
513
Colusa
about 3 mi se Wilbur Springs (1 mi w of Hwy 20, base of steep s-facing hillsides); Wilbur Springs 15' Quad, Big Valley Shale Barrens
Comment
UC764910
Streptanthus glandulosus subsp. glandulosus
R. F. Hoover
1938-4-24
3227
Colusa
ridge between Venado and Leesville
Comment
UCD167944
Streptanthus morrisonii
James Neilson
1982-7-1
4090
Colusa
Frenzel Creek. (Exact location unknown. Coordinates estimated by label maker.)
Comment
UCD167946
Streptanthus morrisonii
James Neilson
1982-7-1
4089
Colusa
About 6 miles west of Lodoga, about 1 mile south of mouth of Frenzel Creek. (Exact location unknown. Coordinates estimated by label maker.)
Comment
HSC92004
Styrax redivivus
S. Morrissette, J. Williams, K. Kopper
1994-4-24
25
Colusa
Bear Valley Rd. 0.5 mi. S of junction with Brimm Rd.
457
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
UCD119113
Styrax redivivus
D. Sanchez-Mata; P. Rodriguez-Rojo
1997-7-25
s.n.
Colusa
Williams (c. 15 miles West). Blue Ridge near Bear Creek.
350
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
UCD136692
Symphyotrichum subulatum var. parviflorum
P. B. Kennedy
1925-9-18
s.n.
Colusa
Cortena.
Comment
CAS-BOT-BC99394
Symphyotrichum subulatum var. parviflorum
A. A. Heller
1939-10-1
15484
Colusa
places between Williams and Maxwell
Comment
JEPS81289
Taeniatherum caput-medusae
L. R. Heckard and J. C. Hickman
1982-7-5
5900
Colusa
Summit Springs, s side of Snow Mountain Summit Springs; Snow Mountain, Summit Springs
1500
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
CDA5072
Tamarix parviflora
T. C. Fuller
1960-6-15
4479
Colusa
Bear Creek, 2 miles north of Yolo Co. line.
0
Comment
HSC62813
Tamarix parviflora
J. M. DiTomaso
1979-4-14
873
Colusa
Bear Valley Rd., 3.9 mi. N of S.R. 20, next to Bear Creek.
412
Comment
HSC62945
Tamarix parviflora
Marla J. Carollo
1979-4-14
29
Colusa
Bear Valley Rd., 3.9 mi. N of Hwy. 20, next to Bear Creek.
412
Comment
CHSC59989
Tetrapteron graciliflorum
Terri Simon
1975-4-20
14
Colusa
Field. Bear Valley Road, 8.7 miles north of State Highway 20.
Comment
UCD163838
Tetrapteron graciliflorum
Craig D. Thomsen
2001-4-12
2467
Colusa
Bear Valley. About 7 miles north of Hwy 20.
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
UCD146699
Thinopyrum intermedium
G. F. Hrusa
1998-6-19
14614
Colusa
above upper Little Stony Creek. Goat Mountain Road around 1.5 km west of campground.
485
Comment
HSC72161
Thysanocarpus curvipes
J. P. Smith, Thomas W. Nelson, Jane P. Nelson
1978-4-2
9536
Colusa
Bear Valley Rd., 1.3 mi. from its junction with Hwy. 20
366
Comment
CAS-BOT-BC88159
Thysanocarpus curvipes
Roxana S. Ferris
1917-4-14
553
Colusa
7 miles west of Arbuckle.
Comment
SEINET3166341
Thysanocarpus curvipes subsp. curvipes
P. J. Alexander, C. D. Bailey
2009-4-1
973
Colusa
East slope of the North Coast Ranges, Mendocino National Forest, east side of Mill Creek 0.8 miles SSW of its confluence with South Fork Stony Creek, 6.3 miles WSW of Stonyford.
509
Comment
UCD56905
Thysanocarpus curvipes subsp. curvipes
Ellen Dean; Gordon Harrington and Kate Mawdsley
2007-3-30
3508
Colusa
BLM Payne Ranch. In Craig Canyon. Southwest of intersection of Hwy. 16 and Hwy. 20.
326
Comment
CHSC57362
Thysanocarpus laciniatus
Steven Triano
1987-4-4
18
Colusa
Salt Canyon, n side of Salt Creek, ca. 30 ft s of Hwy 20, 11 mi wsw of Williams.
143
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
UC72283
Tofieldia occidentalis subsp. occidentalis
Milo S. Baker
1898-8-22
552
Colusa
along a stream Bear Valley Mountains
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
UCD41211
Torilis arvensis
John Snelling
1986-5-17
3 -
Colusa
Maxwell-Sites Road, 0.95 mi. east of Sites.
Comment
UCR212306
Torilis arvensis
Craig D. Thomsen
2001-5-24
2530
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
UCD41197
Torilis nodosa
James Salyards
1986-5-17
86 -
Colusa
Along Maxwell-Sites Road, 0.95 mi. east of Sites.
Comment
UCD83753
Torreya californica
Ellen Dean; G. Harrington, K. Mawdsley, J. Shepard
2010-5-1
5950
Colusa
Walker Ridge. Along Walker Ridge Road. 10 road miles N of intersection with Hwy 20. Just N of radio tower at Cold Spring Mountain on border with Lake County.
971
Comment
UCD93191
Torreyochloa pallida var. pauciflora
Freed W. Hoffman
1948-6-28
2504
Colusa
Lower Letts Valley, western part of county.
Comment
UCD66702
Toxicoscordion fontanum
Craig D. Thomsen
2001-4-12
2450
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
UCD139864
Toxicoscordion fremontii
Kim E. Steiner
1978-4-29
200
Colusa
Walker Ridge Road; 1.5 miles N of State Hwy 20.
777
Comment
UCD15678
Toxicoscordion fremontii
Anne B. Overturf
1989-4-8
12
Colusa
Colusa/Lake County: Walker Ridge.
658
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
CHSC62951
Toxicoscordion paniculatum
Vernon H. Oswald; Lowell Ahart
1994-4-6
6073
Colusa
Goat Mtn. Rd. 1.5 mi S of Sullivan Creek Bridge, SW of Digger Pine Flat, S of Stonyford.
518
Comment
UCD139884
Toxicoscordion venenosum var. venenosum
W. K. Sutton
1931-2-26
2176
Colusa
Maxwell.
Comment
CAS-BOT-BC323063
Trichocoronis wrightii
J. M. Tucker
1953-8-28
2675
Colusa
7 miles east of Arbuckle
Comment
HSC87773
Trichocoronis wrightii
J. M. Tucker
1953-8-28
2675
Colusa
Rice field 7 mi. E of Arbuckle
Comment
POM50995
Trichocoronis wrightii
Roxana Stinchfield
1916-7-11
s.n.
Colusa
Davis, near Sycamore slough
Comment
UCD136900
Trichocoronis wrightii
S. Galen Smith; Malcolm A. Nobs
1949-9-10
1890
Colusa
17 miles north of Knights Landing.
Comment
CHSC84248
Trichostema laxum
Lowell Ahart
2003-7-14
10381
Colusa
Along a drainage, 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
CHSC88578
Trichostema laxum
L. P. Janeway
2001-6-6
7113
Colusa
Inner North Coast Ranges. Eaton Springs, about 2.4 km east of Walker Ridge Road. Meadow opening.
713
Comment
CHSC94298
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
RSA0118601
Trichostema laxum
Lowell Ahart
2013-10-1
19081
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
SEINET13710182
Trichostema laxum
Lowell William Ahart, Lowell William Ahart
2003-1
10381
Colusa
2 Mi. SW Jct. Hwy 20 with Bear Valley Road, about 21 Rd. Mi. SW of Williams (39 Deg 00'23.7"N, 122 Deg 23'59.5"W) 1708 Ft.
521
Comment
UC725735
Trichostema laxum
A. A. Heller
1941-9-22
Colusa
just E of Lake County line
Comment
RSA161330
Trichostema oblongum
Peter H. Raven, R. Snow
1959-9-11
14417
Colusa
Openings in forest of Pinus ponderosa, Dark Hollow Creek.
1860
Comment
UCD169981
Trichostema parishii
G. F. Hrusa; Dmitri Geltman
1992-8-18
15242
Colusa
Along Leesville Rd., about 1 mi S of Lodoga.
320
Comment
UCD81252
Trifolium
Ellen Dean; G. Harrington, R. Willmarth, B. Rice, and C. Thomson
2009-4-8
5417
Colusa
BLM Bear Creek (Payne) Ranch. Lands to the SW of the intersection of Hwys. 16 and 20. South of the canyon that is located to the south of Brophy Canyon and north of the road leading up from the confluence of Bear and Cache Creeks.
365
Comment
UCSC004744
Trifolium
Randall Morgan
1995-5-16
2628
Colusa
Bear Valley
Comment
UCSC005368
Trifolium
Randall Morgan
1995-5-16
2628
Colusa
Bear Valley
Comment
HSC72139
Trifolium albopurpureum
J. P. Smith, Jane P. Nelson, Thomas W. Nelson
1978-4-2
9571
Colusa
Bear Valley Rd., 2.1 mi. from its junction with Hwy. 20
366
Comment
JEPS66026
Trifolium albopurpureum
Alice King
May 1906
Colusa
College City
Comment
UCSC010478
Trifolium albopurpureum
Dylan M. Neubauer, Tim Forsell
2016-3-30
590
Colusa
(NCoRI) Bear Valley, Bear Valley Road, 0.67 air miles south-southeast of junction with Wilbur Springs Road
381
Comment
POM278017
Trifolium albopurpureum
Lyman D. Benson
1933-4-16
4334
Colusa
5 miles south of Arbuckle, Sacramento River Watershed, Sacramento Valley.
91
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
CHSC115392
Trifolium bifidum var. bifidum
Lowell Ahart
2015-4-10
20009
Colusa
In a small meadow, 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
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
UC80312
Trifolium bifidum var. bifidum
Katharine Brandegee
Apr 1889
Colusa
Colusa County
Comment
UCD107898
Trifolium bifidum var. bifidum
E. W. Laubscher
1958-3-7
8
Colusa
State Highway 16, 2 miles N of Yolo-Colusa county line.
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
CHSC112218
Trifolium bifidum var. decipiens
Lowell Ahart; John Dittes, Josephine Guardino
2013-4-26
18631
Colusa
Inner North Coast Range. 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 (air) west of Williams.
566
Comment
UC638666
Trifolium ciliolatum
Ethel Crum
1938-5-7
2016
Colusa
4.2 mi n Rumsey; Inner North Coast Ranges, Comanche Hills
254
Comment
UC80325
Trifolium depauperatum var. depauperatum
Katharine Brandegee
Apr 1889
Colusa
Colusa Junction
Comment
JEPS89584
Trifolium depauperatum var. truncatum
Dean W. Taylor
1992-4-16
12407
Colusa
stony hillside ca. 0.4 mi. due w. from spillway into Little Stony Creek (East Park Reservoir); Inner N. Coast Range, Gilmore Peak Quad.
411
Comment
UCD64260
Trifolium depauperatum var. truncatum
Craig D. Thomsen
2000-3-31
2058
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
UCD64417
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 mile west of Hwy 20/16 instersection, Colusa Co. milepost 3.00.
310
Comment
JEPS121103
Trifolium dichotomum
Lowell Ahart
2013-5-1
18667
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
CHSC9539
Trifolium fucatum
L. V. Ritter
1969-4-30
229
Colusa
Ca. 100 yds. w of the junction of Highway 20 and 16, ca. 50 yds. n of Highway 20.
Comment
UCR212285
Trifolium fucatum
Craig D. Thomsen
2000-3-31
2047
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
SEINET12161438
Trifolium fucatum
S. M. Leary
1978-1
4
Colusa
ca .3 mi W of Jct of Hwys 20 & 16, S side of Bear Creek, ca 18 mi SW of Williams. Wilbur >>
322
Comment
SEINET5738242
Trifolium fucatum
Betty Hess
1973-1
11
Colusa
0.2 mile NW of junction of State Highways 16 and 20 on Bear Valley Road.
Comment
UCSB63950
Trifolium fucatum
Foley, Michael-Anne
1983-4-9
Colusa
Ca. 0.3 mi. W of jct. of Hwy. 20 and 16, S side of Bear Creek, ca. 18 mi. SW of Williams; Wilbur Springs Quadrangle, 15 ft., S central border of Sect. 36. T14N, R5W
320
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
UCR206382
Trifolium hirtum
George K. Helmkamp, E. A. Helmkamp
2009-5-20
14754
Colusa
Inner North Coast Ranges, along CA-16, 1.8 miles north of the Yolo County line
271
Comment
JEPS121121
Trifolium microcephalum
Lowell Ahart
2013-5-1
18693
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
JEPS110476
Trifolium obtusiflorum
Lowell Ahart
2006-8-9
13130
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford
347
Comment
RSA0118786
Trifolium obtusiflorum
Lowell A. Ahart
2013-5-1
18679
Colusa
On the north 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.
567
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
UCD169352
Trifolium obtusiflorum
Lowell Ahart
2013-5-1
18679
Colusa
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. North side of wash.
566
Comment
UCD82116
Trifolium obtusiflorum
Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth
2009-5-20
5644
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
UCD82380
Trifolium obtusiflorum
Craig Thomsen; G. Harrington
2009-5-12
2822
Colusa
Colusa County. Walker Ridge. On moist flat just west of Walker Ridge Road, below turnoff to Eaton Springs.
944
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
JEPS80441
Trifolium repens
L. R. Heckard and J. Hickman
1980-7-3
5370
Colusa
sw slopes Snow Mtn (Summit Springs)
1554
Comment
CHSC94405
Trifolium variegatum
Lowell Ahart
2006-8-9
13131
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
347
Comment
UCD109420
Trifolium variegatum
Clinton C. Shock
1980-5-3
67
Colusa
Bear Valley, about 12 miles north of State Highway 20.
384
Comment
JEPS80211
Trifolium variegatum var. variegatum
L. R. Heckard and J. Hickman
1980-7-3
5365
Colusa
sw slope Snow Mtn (Summit Springs)
1554
Comment
POM174578
Trifolium variegatum var. variegatum
Roxana S. Ferris
1926-4-23
6435
Colusa
Dry Creek near Stonyford.
Comment
UCD64420
Trifolium willdenovii
Craig D. Thomsen
2000-4-28
2175
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
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
UCD149528
Trillium albidum
Greg Kareofelas
2013-4-25
s.n.
Colusa
Colusa County; north of Lily Pond, Mill Valley Campground, along Forest Route AN02. In the Mendocino National Forest, between Snow Mountain and Goat Mountain.
1228
Comment
UCD82723
Triodanis biflora
Craig Thomsen; G. Harrington
2009-5-14
2906
Colusa
Colusa County on Walker Ridge: south of spur road about 1/2 mile east of Walker Ridge Road, en route to Eaton Springs.
813
Comment
CHSC79718
Triodanis perfoliata
B. Castro; L. P. Janeway
2000-5-4
1133
Colusa
Vicinity of Sites, Sites-Lodoga Rd, and Grapevine Creek.
246
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
JEPS80779
Trisetum canescens
L. R. Heckard and J. C. Hickman
1981-7-30
5752
Colusa
Trout Creek Snow Mt. (se side of Snow Mt.)
1615
Comment
HSC47744
Triteleia hyacinthina
Thomas W. Nelson, Jane P. Nelson
1978-4-29
3949
Colusa
Along Bear Valley Rd., 2.5 mi. from junction with Hwy. 20
366
Comment
UC1093631
Triteleia laxa
Francia Chisaki and Gene B. Newcomb
1958-4-1
1105
Colusa
on bank of road to Lodoga 2.6 mi n junction with road to Bartlett Springs
Comment
UCD64413
Triteleia laxa
Craig D. Thomsen
2000-4-12
2140
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
UCR233442
Triteleia laxa
George K. Helmkamp, E. A. Helmkamp
2011-4-1
17130
Colusa
Eastern Foothills North Coast Ranges, Antelope Valley, along Maxwell-Sites Road, 0.4 miles southeast of Sites
93
Comment
CAS-BOT-BC278172
Triteleia laxa
Mona Bourell
1997-3-29
5809
Colusa
Mendocino National Forest along road near Brittan Ranch, 0.1 mi. N of North Fork Campground
Comment
HSC85828
Triteleia laxa
Jeff Dunk, Tallchief Comet, David Munger
1987-4-11
63
Colusa
Bartlett Springs Rd.
Comment
SEINET3127298
Triteleia laxa
M. A. King
1905-1
sn
Colusa
Near Arbuckle [hand written], collected near College City, Sacramento Valley [printed label
Comment
SEINET199006
Triteleia peduncularis
Helen K. Sharsmith
1953-6-19
4247
Colusa
Mendocino National Forest ; East slope of Snow Mountain on Bonny Doon Road
671
Comment
UC1051722
Triteleia peduncularis
Helen K. Sharsmith
1953-6-19
4274
Colusa
e slope Snow Mountain (on Bonny Doon Road, Mendocino National Forest); Inner North Coast Ranges, Mendocino National Forest
670
Comment
UC1299323
Triteleia peduncularis
Freed W. Hoffman
1947-6-19
1660
Colusa
Cooks Springs Cooks Springs (western Colusa County)
Comment
CHSC90201
Tropidocarpum gracile
A. Francis
1989-4-1
1
Colusa
Salt Canyon, n side of Salt Creek, Hwy 20, 11 mi wsw of Williams.
143
Comment
HSC71308
Umbellularia californica
Thomas W. Nelson, Jane P. Nelson
1979-4-12
4618
Colusa
Along Stony Creek below Digger Pine Campground
Comment
JEPS80760
Umbellularia californica
L. R. Heckard and J. C. Hickman
1981-7-29
5727
Colusa
s side of High Rock near summit High Rock (s side of Snow Mountain); Snow Mountain, High Rock
1935
Comment
CHSC89856
Uropappus lindleyi
B. Castro; L. P. Janeway
2001-4-18
1237
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
JEPS124231
Uropappus lindleyi
Lowell Ahart
2015-4-1
19997
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
UC71622
Uropappus lindleyi
Miss Alice King
1905-1
Colusa
College City
Comment
JEPS110102
Urtica dioica subsp. holosericea
Lowell Ahart
2006-8-9
13172
Colusa
East side of East Park Reservoir, about 1/2 mile north of Lodoga, west of the road from Lodoga to Maxwell
365
Comment
CAS-BOT-BC404289
Urtica urens
Roxana S. Ferris
1917-4-15
620
Colusa
Sycamore Slough
Comment
CAS-BOT-BC479711
Velezia rigida
Ann Howald
2003-5-29
2352
Colusa
Inner North Coast Ranges: Indian Valley, east side of East Park Reservoir, c. 3.7 mi N of Lodoga, near Chisolm Cove Group Campground
378
Comment
CHSC110425
Velezia rigida
David Isle; Rhonda Isle
2011-7-6
1951
Colusa
SW of Stonyford; N of Dennis Dr.; on gravelly flat about 85 yds NW of Salt Creek Bridge on Isle property.
374
Comment
UCD72462
Velezia rigida
Ellen Dean; J. Alderson, N. Voegtly, and C. Thomsen
2007-5-12
3796
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. Near north end of bridge, west side of creek.
281
Comment
UCR261639
Velezia rigida
Ann Howald
2003-5-29
2352
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
UCD61471
Verbascum blattaria
Ellen Dean; G. Harrington, N. Voegtly, J. Alderson, C. Thomsen
2007-6-24
3917
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
POM63857
Verbena lasiostachys
Roxana Stinchfield
1916-7-8
375
Colusa
Stinchfield Ranch, along Sycamore Slough
Comment
RSA725018
Verbena lasiostachys
L. Ahart
2006-8-22
13212
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
348
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
JEPS75854
Verbena lasiostachys var. lasiostachys
L. R. Heckard
1974-9-11
3940
Colusa
meadow just e Foutch Camp; Snow Mt
1859
Comment
CDA16103
Verbena lasiostachys var. scabrida
G. F. Hrusa, Dmitri Geltman (LE)
1999-8-18
15250
Colusa
North Coast Ranges; Goat Mtn. summit.
1706
Comment
RSA0105550
Verbena lasiostachys var. scabrida
Lowell Ahart
2013-10-1
19091 -A
Colusa
Inner North Coast Range. 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
RSA725015
Veronica catenata
L. Ahart
2006-8-9
13127
Colusa
North side and under the bridge across Stony Creek, just north of Stonyford.
348
Comment
JEPS75716
Veronica serpyllifolia subsp. humifusa
L. R. Heckard
1974-9-9
3842
Colusa
just se of Foutch Camp (Snow Mountain); Snow Mountain
1889
Comment
JEPS80088
Veronica serpyllifolia subsp. humifusa
L. R. Heckard with J. Hickman
1979-6-16
5096
Colusa
s of Milk Ranch Meadow (nw of West Peak, Snow Mountain); Snow Mountain
2011
Comment
UCD67034
Vicia americana
Ellen Dean; Davis Botanical Society
2008-5-31
5015
Colusa
west of I-5 at Maxwell, Goat Mountain, ridge below summit off of Goat Mountain Road.
1734
Comment
CHSC59717
Vicia americana var. americana
Darci Field
1977-4-16
21
Colusa
Ca. 0.3 mi w of jct of Hwys 20 and 16, s side of Bear Creek, ca. 18 mi s w of Williams.
321
Comment
HSC45726
Vicia cracca
Patricia Shesgreen
1978-4-22
45
Colusa
Bear Valley Rd., 1.5 mi. from its junction with Hwy. 20
412
Comment
UCD163870
Vicia villosa subsp. varia
Craig D. Thomsen
2000-3-31
2109
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
CHSC86014
Vicia villosa subsp. villosa
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
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
HSC21779
Viola douglasii
Charles Belshaw
1937-4-25
2820
Colusa
North Coast Ranges: Cooks Springs
Comment
HSC72212
Viola douglasii
Thomas W. Nelson, Jane P. Nelson
1980-6-24
5878
Colusa
Along road to Snow Mtn. trail head at Summit Springs
1585
Comment
JEPS73518
Viola douglasii
L. R. Heckard
1972-7-10
3137
Colusa
between Foutch Camp and Trout Creek crossing; Snow Mountain
1889
Comment
UC1060635
Viola douglasii
Francia Chisaki, Gene B. Newcomb
1958-4-1
1106
Colusa
2.1 mi s of Lodoga (by road side)
Comment
UC519681
Viola douglasii
Victor Duran
1933-4-2
3379
Colusa
Stonyford
304
Comment
UCD110679
Viola douglasii
Victor Duran
1933-4-2
3379
Colusa
Stonyford.
304
Comment
UCD15438
Viola douglasii
Lisa Montang
1985-4-13
8
Colusa
Bear Valley, 8.6 miles north of Bear Valley Road and Highway 20 intersection;
441
Comment
UCD15679
Viola douglasii
Anne B. Overturf
1989-4-8
11
Colusa
Walker Ridge.
658
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-BC203032
Vitis californica
Roxana S. Ferris
1917-4-16
629
Colusa
Near Sacramento River near Sycamore Slough
Comment
CAS-BOT-BC203034
Vitis californica
Roxana S. Ferris
1926-4-22
6303
Colusa
Sycamore Slough near Sycamore
Comment
UC18628
Vitis californica
J. Burtt Davy
May 1898
4284
Colusa
near Princeton
Comment
UCD81717
Vitis californica
Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia
2009-5-27
5722
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
HSC87048
Vulpia microstachys
Pat Daly, Rudy Galindo
1988-4-16
51
Colusa
21.6 mi. off Hwy. 20 on Brim Rd., via Walker Ridge Rd.
518
Comment
UCD56920
Vulpia microstachys var. ciliata
Ellen Dean; Gordon Harrington and Kate Mawdsley
2007-3-30
3523
Colusa
BLM Payne Ranch. Southwest of intersection of Hwy. 16 and Hwy. 20. In Craig Canyon.
334
Comment
UC596025
Vulpia microstachys var. confusa
R. F. Hoover
1938-4-23
3208
Colusa
Upper Sand Creek
Comment
CAS-BOT-BC184158
Vulpia microstachys var. pauciflora
Lewis S. Rose
36188
Colusa
15 miles north of Rumsey
Comment
JEPS75409
Vulpia microstachys var. pauciflora
W. L. Jepson
1932-5-8
16290
Colusa
Stonyford
365
Comment
JEPS80186
Vulpia microstachys var. pauciflora
L. R. Heckard and J. Hickman
1980-7-3
5338
Colusa
ca 10 mi w Stonyford (just w of Summit Springs, sw Snow Mt, Colusa-Lake county boundary); Snow Mt.
1548
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
SEINET10604484
Vulpia microstachys var. pauciflora
Roxana S. Ferris
1917-4-12
Ferris 495
Colusa
4 miles east of Williams Alkali Plains.
Comment
POM296602B
Vulpia myuros
Lyman Benson
1935-3-27
6371
Colusa
Williams, Sacramento River watershed.
91
Comment
JEPS83807
Wyethia angustifolia
L. R. Heckard and J. C. Hickman
1982-7-9
6011
Colusa
below Summit Springs; Snow Mt.
1463
Comment
HSC38355
Wyethia angustifolia
J. P. Smith
1974-5-5
7365
Colusa
Comment
CHSC79968
Wyethia glabra
L. P. Janeway; B. Castro
2000-5-4
6708
Colusa
Vicinity of Grapevine Creek and Sites-Lodoga Road.
274
Comment
UCD70173
Wyethia helenioides
D. Sanchez-Mata
1998-7-10
s.n.
Colusa
Stonyford. Fouts Springs Road. Open interior live oak scrub chaparral (Quercus wislizenii var. frutescens) in deforested slopes.
640
Comment
CHSC80347
Xanthium spinosum
Caroline Warren; Jenny Marr, Heidi West, Natalie Wight
1998-6-11
Colusa
Vicinity of Funks Creek and Logan Ridge.
106
Comment
UC36807
Xanthium spinosum
J. Burtt Davy
May, 1898
4277
Colusa
near Willows
Comment
CAS-BOT-BC383632
Xanthium spinosum
Roxana Stinchfield
1916-7-8
400
Colusa
Truck garden, Stinchfield ranch near Sycamore
Comment
JEPS110358
Zannichellia palustris
Lowell Ahart
2006-8-22
13234
Colusa
On the north side of Stony Creek, about 50 yards east of the north end of the bridge across Stony Creek, just north of Stonyford
347
Comment
CHSC71426
Zeltnera muehlenbergii
Vernon H. Oswald; Lowell Ahart
1998-7-15
9267 A
Colusa
Bartlett Springs Rd. 1.6 mi west of Bear Valley Rd. In a meadow.
487
Comment
UCD55464
Zeltnera venusta
Ellen Dean; Gordon Harrington
2006-10-6
3289
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
UCD61456
Zeltnera venusta
Ellen Dean; G. Harrington, N. Voegtly, J. Alderson, C. Thomsen
2007-6-24
3902
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
RSA262383
Zigadenus fremontii
Rosalie B. Lopopolo
1967-4-29
34
Colusa
Ca. 8 miles northwest of junction of Highway 16 and Highway 20, Bear Valley
402
Comment
HSC31617
Zigadenus micranthus
Maralyn O'Meara, Gary S. Lester
1974-5-4
343
Colusa
Walker Ridge Rd., 0.7 mi. from junction with Little Indian Valley Rd.
854
Comment
HSC31716
Zigadenus paniculatus
Teresa Prendusi
1974-5-4
53
Colusa
Beyond Clyde Mine 1/8 mi.
854
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
HSC31312
Zigadenus venenosus var. venenosus
Carter Schleicher
1974-5-4
28
Colusa
0.75 mi. from T junction of Walker Ridge Rd. and Indian Valley, near Clyde Mine
854
Comment