39.06305 39.16305 -122.54555 -122.44555 Archived CCH Search Results
Search Results — 1876 specimen records retrieved (1876 records with coordinates)
Results for search:   

Mapping Options:

BerkeleyMapper with county and bioregion layers
BerkeleyMapper without layers.
KML export
(Note: only records with coordinates are mappable)

Download Options:
Select all records · Select records with coordinates

Include annotations and voucher information

PLEASE NOTE: Due to changes in newer versions of Excel, directly copying text from the above selected results does not produce a usable table.
    Follow these steps:
      1. The contents of the selected results window must be copied into a text editor like TextEdit for Mac or WordPad for Windows
      2. The selected results must be saved as a new text document.
      3. This new text document can now be copied into Excel or imported as a tab delimited text file.

(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

Click on column header to sort data (* sorts by family); click in leftmost checkbox to select record. CCH Help Page.
Turn on yellow flags to show possible range discrepancies. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  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
  UCD50688  Achnatherum lemmonii R. Tofsrud 1951-4-23 s.n. Lake Stevens Ranch, Indian Valley. Comment
  UCD84580  Acmispon americanus var. americanus Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6105 Lake Walker Ridge. Along Bartlett springs road just west of Walker Ridge Rd intersection. Meadow on south side of road. 647 Comment
  CHSC115193  Acmispon denticulatus Lowell Ahart 2015-4-28 20098 Lake East of the meadow, about 150 yards west of Barrel Spring Meadow, about 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. 696 Comment
  JEPS123915  Acmispon denticulatus Lowell Ahart 2015-4-28 20098 Lake About 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. Comment
  HSC25721  Acmispon grandiflorus J. P. Smith 1971-6-6 4718 Lake 0.75 mi. N of Clyde Mine, Walker Ridge Rd. Comment
  CHSC115199  Acmispon wrangelianus Lowell Ahart 2015-4-28 20099 Lake In the meadow, about 150 yards west of Barrel Spring Meadow, about 1/4 miles (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. 696 Comment
  HSC44246  Acmispon wrangelianus Barbara Kelly 1977-4-24 351 Colusa Along Walker Ridge Rd. above Barrel Springs Campground. 701 Comment
  JEPS123901  Acmispon wrangelianus Lowell Ahart 2015-4-28 20099 Lake About 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. Comment
  UCD82126  Acmispon wrangelianus Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5655 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
  HSC66637  Adenostoma fasciculatum Debbie Stamp, Joanne Spitler, Patty Powers, Cathy Railey, Cathy Macdonald 1980-4-19 20 Lake Coldsprings Campground along access road to Indian Valley Dam Comment
  CHSC32943  Adiantum jordanii D. Boyd; M. Eichelberger, T. Messick, T. Ranker 1980-4-19 9 Lake Coldsprings Campground, along access road to Indian Valley Dam. Comment
  HSC66582  Adiantum jordanii D. Boyd, M. Eichelberger, Tim Messick, T. Ranker 1980-4-19 9 Lake Coldsprings Campground along access road to Indian Valley Dam Comment
  HSC66647  Aesculus californica Cathie Goldberg, Lauren Philbrick, Lynn Kunstman, Geoff Walsh 1980-4-19 15 Lake Coldsprings Campground, along access road to Indian Valley Dam Comment
  HSC86927  Aesculus californica Anthony J. Desch, Bryon Cariss 1988-4-16 33 Colusa 2 mi. W on Brim Rd. from corner of Brim Rd. and Bear Valley Rd. 518 Comment
  CDA21524  Agoseris grandiflora G. F. Hrusa, R. Gross 2008-5-23 17450 Lake North Coast Ranges; Above N. Fk. Cache Cr. +/- 1/2 mi. below spillway of Indian Valley Reservoir. 423 Comment
  UC2014168  Agoseris grandiflora Ellen Dean, G. Harrington, C. Thomsen, Chiao-Yi Cheng, R. Wilmarth 2009-5-20 5643 Colusa Colusa County: 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. Comment
  UCD82099  Agoseris grandiflora Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5626 Lake 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. 821 Comment
  UCD82115  Agoseris grandiflora Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5643 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
  CAS-BOT-BC21332  Agoseris grandiflora var. grandiflora Greg de Nevers 2001-5-14 12399 Lake Clear Lake, Lake County Land Trust, Rodman Slough 475 Comment
  HSC42196  Agoseris heterophylla M. A. Baker 1977-4-24 218 Lake Barrel Springs Campground. 701 Comment
  HSC44267  Agoseris heterophylla Barbara Kelly 1977-4-24 350 Lake Barrel Springs Campground 701 Comment
  HSC45740  Agoseris heterophylla Stephen Plant 1978-4-23 226 Lake Barrel Springs Campground 701 Comment
  HSC48462  Agoseris heterophylla J. P. Smith 1978-4-23 9753 Lake Barrel Springs Campgound 701 Comment
  HSC60454  Agoseris heterophylla J. P. Smith 1977-4-24 9034 Lake Barrel Springs Campground 701 Comment
  HSC95559  Agoseris heterophylla Todd Bouchier, Kathleen Gifford, Cameron Williams 1999-5-1 23 Lake Blue Oak Recreation Area; Walker Ridge Rd. 12.8 km. from Hwy. 20 536 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
  UCSC010468  Agoseris heterophylla var. cryptopleura Dylan M. Neubauer, Tim Forsell 2016-3-31 595 Colusa (NCoRI) Walker Ridge, Walker Ridge Road, 1.78 air-miles sse Cold Spring Mountain 815 Comment
  UCR50006  Agrostis californica L. F. LaPre, K. Campbell 1987-6-29 s.n. Lake Inner North Coast Ranges, Barrel Spring Camp, NE of Clear Lake at Colusa Co. line, on Walker Ridge Rd Comment
  RSA466291B  Agrostis densiflora L. F. LaPre, K. Campbell 1987-6-29 s.n. Lake Barrel Springs Camp, NE of Clear Lake at Colusa Co. line, on Walker Pass Road Comment
  CHSC71458  Agrostis exarata Vernon H. Oswald; Lowell Ahart 1998-7-15 9273 Colusa Bartlett Springs Rd. 1.6 mi west of Bear Valley Rd. 487 Comment
  CHSC84214  Agrostis exarata Lowell Ahart 2003-7-14 10406 Lake Along a stream, on the east side of the second causeway going southwest on Bartlett Springs Road, Indian Valley Reservoir. 449 Comment
  JEPS104390  Agrostis exarata Lowell Ahart 2003-7-14 10406 Lake Along a stream, on the e side of the second causeway going sw on Bartlett Springs Rd, Indian Valley Reservoir. 449 Comment
  UCD163845  Agrostis exarata Craig D. Thomsen 2000-6-1 s.n. Colusa Bear Valley. About 7 miles north of Hwy 20. Comment
  UCD82097  Aira caryophyllea Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5624 Lake 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. 821 Comment
  UCD82469  Aira caryophyllea Craig Thomsen; G. Harrington 2009-5-12 2846 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 707 Comment
  UCD82470  Allium Craig Thomsen; G. Harrington 2009-5-12 2847 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. About 100 yds south of road (ravine with spring below). 707 Comment
  CDA14214  Allium amplectens G. F. Hrusa 1993-6-1 11167 Lake Just to W of summit of Walker Ridge along Bartlett Spr. Rd. Comment
  CHSC84319  Allium amplectens Lowell Ahart 2003-7-14 10391 Lake Along a small dry stream, at Barrel Spring, about 1 1/2 miles (air) south of Bartlett Springs Road, about 2 miles (air) west of Bear Valley. 396 Comment
  CHSC84324  Allium amplectens Lowell Ahart 2003-7-14 10409 Lake Along a small stream, on the north side of Bartlett Springs Road, about 2 miles west of Bear Valley. 630 Comment
  HSC25716  Allium amplectens J. P. Smith, J. O. Sawyer 1971-6-6 4723 Lake 0.75 mi. N of Clyde Mine, Walker Ridge Rd. Comment
  JEPS56359  Allium amplectens W. L. Jepson 1920-5-23 8989 Lake Indian Valley 457 Comment
  UC1299744  Allium amplectens Freed W. Hoffman 1949-5-15 2808 Lake 11 mi e Hough Springs (on Bartlett Springs-Leesville road); Bartlett Springs-Leesville road 533 Comment
  UCD63364  Allium amplectens Daniel Sanchez-Mata; Emin Ugurlu 2006-6-19 s.n. Lake Leesville-Barkerville. Bartlett Springs Road. 620 Comment
  UCD82159  Allium amplectens Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5689 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
  UCD82390  Allium amplectens Craig Thomsen; G. Harrington 2009-5-12 2832 Colusa Colusa County. Walker Ridge. South of spur road en route to Eaton Springs, about 1/2 mile east of Walker Ridge Rd. About 100 yds south of road (ravine with spring below). 822 Comment
  UCD82515  Allium amplectens Craig Thomsen; G. Harrington 2009-5-12 2873 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 710 Comment
  UCD82518  Allium amplectens Craig Thomsen; G. Harrington 2009-5-12 2875 b Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 713 Comment
  UCD84518  Allium amplectens Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6069 Lake Lake County. Walker Ridge. Along Bartlett springs road just west of Walker Ridge Rd intersection. 647 Comment
  HSC27380  Allium cratericola J. P. Smith, J. O. Sawyer 1972-4-1 5172 Lake 8.8 mi. N of junction of SR 20 and Walker Ridge Rd. Comment
  HSC66045  Allium cratericola D. Boyd, M. Eichelberger, Tim Messick, T. A. Ranker 1980-4-19 41 Lake Along Walker Ridge Rd. 3.7 mi. N of junction with access rd. to Indian Valley Dam Comment
  SEINET3884407  Allium cratericola D. Boyd, M. Eichelberger; T. Messick; T. A. Ranker 1980-4-19 37 Lake Along Walker Ridge Road, 0.5 miles north of junction with access road to Indian Valley Dam.; 0 Comment
  UCD83750  Allium cratericola Ellen Dean; G. Harrington, K. Mawdsley, J. Shepard 2010-5-1 5946 Lake Walker Ridge. Along Walker Ridge Road. At a lookout that overlooks Indian Valley Reservoir that is located 8.3 road miles N of the intersection of Hwy 20. 1054 Comment
  CHSC59621  Allium falcifolium Clinton C. Shock 1980-5-3 71 Lake Walker Ridge. 14.6 miles north of State Highway 20, at the crest intersection of the road to Bear Valley. 658 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
  CHSC71009  Allium falcifolium Vernon Oswald; Lowell Ahart 1998-5-7 9009 Colusa Bartlett Springs Rd. 2.8 mi west of Bear Valley Rd., 0.1 mi east of Sawtelle Valley and Grapevine Flat roads. 633 Comment
  HSC25717  Allium falcifolium J. P. Smith, J. O. Sawyer 1971-6-6 4722 Lake 0.75 mi. N of Clyde Mine, Walker Ridge Rd. Comment
  HSC44386  Allium falcifolium Joyce Walker 1977-4-24 4 Lake Barrel Springs Campground 701 Comment
  HSC45680  Allium falcifolium Catherine Chin 1978-4-23 47 Lake Barrel Springs Campground 701 Comment
  HSC47457  Allium falcifolium J. P. Smith 1978-4-23 9748 Lake Barrel Springs Campground. 701 Comment
  HSC67130  Allium falcifolium S. Harris, B. Ferguson, M. Smith, M. Moble 1980-4-19 Lake Along Walker Ridge Rd., 0.5 mi. N of junction with access rd. to Indian Valley Dam Comment
  HSC92508  Allium falcifolium Moulton, Sparks, Wood 1995-5-6 29 Lake Brim Rd. E of Walker Ridge Rd. 640 Comment
  JEPS94212  Allium falcifolium Vernon Oswald and Lowell Ahart 1998-5-7 9009 Colusa Bartlett Springs Road 2.8 mi w of Bear Valley Road (0.1 mi e of Sawtelle Valley and Grapevine Flat Roads); Bartlett Springs Road 633 Comment
  UCD82517  Allium falcifolium Craig Thomsen; G. Harrington 2009-5-12 2875 a Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 713 Comment
  UCR37945  Allium falcifolium P. Williams, Mike Malamus, Brian Kearney 1984-4-28 4 Lake 1.1 mi north of Blue Oak Campground of Indian Valley Access Road 854 Comment
  JEPS2717 Image available Allium fimbriatum var. fimbriatum W. L. Jepson 1920-5-23 8995 Lake Indian Valley, ne Lake Co. Indian Valley Comment
  HSC60455  Allium serra J. P. Smith 1977-4-24 9033 Lake Barrel Springs Campground 701 Comment
  HSC92529  Allium serra Moulton, Sparks, Wood 1995-5-6 31 Lake Brim Rd. E of Walker Ridge Rd. 640 Comment
  RSA245233  Allium serratum J. P. Smith, John Sawyer 1971-6-6 4723 Lake 0.75 mi. north of Clyde Mine; Walker Ridge Road Comment
  CAS-BOT-BC230055  Allophyllum gilioides Ellen Dean; G. Harrington; C. Thomsen; Chiao-Yi Cheng; R. Wilmarth 2009-5-20 5675 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
  UCD82489  Allophyllum gilioides Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5675 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
  UCD84444  Allophyllum gilioides Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6052 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
  UCD163841  Alnus rhombifolia Craig D. Thomsen 2000-6-1 s.n. Colusa Bear Valley. About 7 miles north of Hwy 20. Comment
  CHSC33031  Amsinckia intermedia S. Harris; B. Ferguson, M. Moble, M. Smith 1980-4-19 Lake Coldsprings Campground, along access road to Indian Valley Dam. Comment
  HSC66016  Amsinckia intermedia Cathy Goldberg, Geoff Walsh, Lauren Philbrick, Lynn Kunstman 1980-4-19 1 Lake Coldsprings Campground, along access road to Indian Valley Dam Comment
  HSC91383  Amsinckia intermedia Sam Stroich Jr., Rolf Miller, Brian Pereira 1990-5-8 21 Lake Blue Oak Campground, Indian Valley Reservoir access road 2.5 mi. NE of intersection with Walker Ridge Rd. 534 Comment
  HSC99326  Amsinckia intermedia Catherine Chin 1978-4-23 37 Lake Barrel Springs Campground 701 Comment
  CHSC117804  Amsinckia lunaris Jake Schweitzer 2010-4-1 Colusa Inner North Coast Rnages. On BLM parcel, approx. 265 m W of Walker Ridge Road (Bartlett Springs Rd on some maps) 120 m SE of Til Jones Spring. 853 Comment
  HSC66058  Anagallis arvensis Cathie Goldberg, Lynn Kuntsman, Lauren Philbrick, Geoff Walsh 1980-4-19 44 Lake Along Walker Ridge Rd., 1 mi. N of its junction with access road to Indian Valley Dam Comment
  CDA24961  Ancistrocarphus filagineus G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17114 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  CHSC45774  Ancistrocarphus filagineus Vernon Oswald 1986-5-12 2015 Lake Brim Rd. (Bartlett Springs Rd.) at the jct. of the road to Barrel Spring. 640 Comment
  JEPS16206  Ancistrocarphus filagineus Rimo Bacigalupi and Arthur Holmgren 1950-4-26 3182 Colusa just w of, (w of base of grade to Indian Valley (Bartlett Mt. Road)) Bear Valley; Inner North Coast Ranges, Indian Valley, Bear Valley Comment
  UC1056275  Ancistrocarphus filagineus Rimo Bacigalupi and Arthur Holmgren 1950-4-26 3182 Colusa just w of, (just w of base of grade to Indian Valley (Bartlett Mtn. Rd.)) Bear Valley; Inner North Coast Ranges Comment
  CDA21519  Angelica californica G. F. Hrusa, R. Gross 2008-5-23 17441 Lake North Coast Ranges; N-facing slope above N. Fk. Cache Cr. +/- 1/2 mi. below spillway of Indian Valley Reservoir. Perennial, in colony on NW facing dry, shaded slope. Flrs white. Uncommon. Sheet 2 of 2. 408 Comment
  CDA21530  Angelica californica G. F. Hrusa, R. Gross 2008-5-23 17441 Lake North Coast Ranges; Slope above N. Fk. Cache Cr. +/- 1/2 mi. below spillway of Indian Valley Reservoir. on Sheet 1 of 2. 408 Comment
  UCD83626  Anthriscus caucalis Adam Clause; with PLB 102 class 2010-5-2 5 Colusa Walker Ridge. Eaton Springs. 40 m south of the main road, on the flat valley floor at the edge of a creek. 709 Comment
  CHSC71449  Antirrhinum cornutum Vernon H. Oswald; Lowell Ahart 1998-7-15 9284 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Bartlett Springs Rd. 640 Comment
  CHSC84201  Antirrhinum cornutum Lowell Ahart 2003-7-14 10402 Lake Along a small stream, on the west side of the second causeway going southwest on Bartlett Springs Road, Indian Valley Reservoir. 449 Comment
  JEPS104392  Antirrhinum cornutum Lowell Ahart 2003-7-14 10402 Lake Along a small stream, on the w side of the second causeway going sw on Bartlett Springs Rd, Indian Valley Reservoir. 449 Comment
  JEPS6466  Antirrhinum cornutum W. L. Jepson 1938-6-9 18954 a Lake Indian Valley 487 Comment
  JEPS94692  Antirrhinum cornutum Vernon H. Oswald and Lowell Ahart 1998-7-15 9284 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Bartlett Springs Rd 640 Comment
  JEPS94754  Antirrhinum cornutum Vernon H. Oswald and Lowell Ahart 1998-7-15 9284 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Bartlett Springs Rd 640 Comment
  UCD123431  Antirrhinum cornutum Vernon H. Oswald; Lowell Ahart 1998-7-15 9284 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Barlett Springs Rd. 640 Comment
  CHSC71450  Antirrhinum vexillo-calyculatum subsp. breweri Vernon H. Oswald; Lowell Ahart 1998-7-15 9298 Lake East side of sounty near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Bartlett Springs Rd. 640 Comment
  JEPS93806  Antirrhinum vexillocalyculatum subsp. breweri Vernon H. Oswald and Lowell Ahart 1998-7-15 9298 Lake 0.8 mi s of Bartlett Springs Road (e side of county near Barrel Spring on the e side of Baldy Mountain and w of Walker Ridge Road); Baldy Mountain 640 Comment
  UCD123479  Antirrhinum vexillocalyculatum subsp. breweri Veron H. Oswald; Lowell Ahart 1998-7-15 9298 Lake East side of county near Barrel Spring on the east side of Baldy Mountain, and west of Walker Ridge Road, 0.8 mile south of Bartlett Springs Road. 640 Comment
  CDA22925  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum G. F. Hrusa, R. Gross 2008-5-23 17434 Lake North Coast Ranges; above N. Fk. Cache Cr. +/- 1 mi. below spillway of Indian Valley Reservoir. 426 Comment
  CHSC101228  Antirrhinum vexillocalyculatum subsp. vexillocalyculatum G. F. Hrusa; R. Gross 2008-5-23 17434 Lake N-facing slope above N. Fork Cache Creek +/- 1 mile below spillway of Indian Valley Reservoir. 426 Comment
  CAS-BOT-BC248845  Antirrhinum virga P. C. Everett; E. K. Balls 1954-10-18 20360 Lake 9.2 mi. s.e. from Hough Springs on road from Lucerne to Williams 548 Comment
  CAS-BOT-BC248852  Antirrhinum virga P. C. Everett; E. K. Balls 1954-10-18 20360 Lake 9.2 mi. s.e. from Hough Springs on road from Lucerne to Williams 548 Comment
  CAS-BOT-BC248890  Antirrhinum virga Annetta Carter; Louise Kellogg 1953-6-20 3242 Lake Inner North Coast Ranges. Hills west of Indian Valley, Bartlett Springs road 450 Comment
  CAS-BOT-BC248896  Antirrhinum virga Annetta Carter; Louise Kellogg 1953-6-20 3242 Lake Inner North Coast Ranges. Hills west of Indian Valley, Bartlett Springs road 450 Comment
  GH365376  Antirrhinum virga A. M. Carter & L. Kellogg 1953-6-20 3242 Unknown hills west of Indian Valley, Bartlett Springs road Comment
  RSA182036  Antirrhinum virga Annetta Carter, Louise Kellogg 1953-6-20 3242 Lake Hills west of Indian Valley, Bartlett Springs Rd. 450 Comment
  SD62173  Antirrhinum virga Annetta Carter, Louise Kellogg 1953-6-20 3242 Lake Hills west of Indian Valley, Bartlett Springs Road 449 Comment
  UC1282152  Antirrhinum virga Annetta Carter and Louise Kellogg 1953-6-20 3242 Lake w of Indian Valley (Bartlett Springs road); Inner North Coast Ranges 450 Comment
  UC1282153  Antirrhinum virga Annetta Carter and Louise Kellogg 1953-6-20 3242 Lake w of Indian Valley (Bartlett Springs road); Inner North Coast Ranges 450 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
  HSC37637  Arabis breweri var. breweri John Rehling, Robert M. Specht 1976-3-26 167 Lake 8.3 mi. N on Barlett Springs Rd. from junction with Hwy. 20 Comment
  HSC66035  Arceuthobium campylopodum D. Boyd, M. Eichelberger, Tim Messick, T. Ranker 1980-4-19 38 Lake Along Walker Ridge Rd., 1 mi. N of junction with access road to Indian Valley Dam Comment
  HSC96752  Arceuthobium campylopodum J. Carey, A. Hong, J. Leffingwell 1995-4-1 22 Colusa Walker Ridge Rd., 0.9 mi. NE of junction with Indian Valley Access Rd., adjacent to Freshwater Branch Creek 793 Comment
  CHSC83138  Arctostaphylos G. L. Webster 1989-5-6 7700 Colusa Near border with Lake Co., on crest of Walker Ridge, near Cold Springs Mt. Comment
  UCD50538  Arctostaphylos canescens G. L. Webster 1989-5-6 7700 Colusa Near border with Lake County, Pinus attenuata woods on crest of Walker Ridge, near Cold Springs Mountain. Comment
  CAS-BOT-BC25251  Arctostaphylos canescens subsp. canescens Josh Suchocki; Charlene Vullo; Kyle Wear 1995-4-1 36 Colusa Walker Ridge Rd., 4.8 miles N of junction with Indian Valley Access Rd. 975 Comment
  CDA12069  Arctostaphylos canescens subsp. canescens G. F. Hrusa 1989-4-8 5910 Lake North Coast Biodiversity Arena; Summit of Walker Ridge immed. W of Bear Valley and approx. 15 miles N of Hwy 20. Comment
  HSC96816  Arctostaphylos canescens subsp. canescens J. Carey, A. Hong, J. Leffingwell 1995-4-1 24 Colusa Walker Ridge Rd., 4.8 mi. N of its junction with Indian Valley Access Rd. 976 Comment
  HSC92498  Arctostaphylos canescens subsp. sonomensis D. Haskamp, E. Sonnenblick, M. Taft 1995-4-1 9 Colusa On Walker Ridge Rd. 4.8 mi. N of junction with Indian Valley Access Rd. 976 Comment
  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
  RSA670065  Arctostaphylos canescens subsp. sonomensis G. L. Webster 1989-5-6 7700 Colusa Walker Ridge, near Cold Springs Mt. Near border with Lake County. Comment
  UCD51019  Arctostaphylos glandulosa G. L. Webster 1989-5-6 7697 Colusa Near Border with Lake County; on Walker Ridge; near Cold Spring Mountain. Comment
  UCD51022  Arctostaphylos glandulosa var. glandulosa G. L. Webster 1989-5-6 4699 Colusa Near border with Lake County; on Walker Ridge, near Cold Spring Mountain. Comment
  HSC67106  Arctostaphylos manzanita Teri Bartkowski, Shane Feusier, Ruth Takaki, Carol Zimmerer 1980-4-19 4 Lake Coldsprings Campground, along access road to Indian Valley Comment
  HSC27147  Arctostaphylos viscida J. P. Smith, J. O. Sawyer 1972-4-1 5167 Lake 6.2 mi. N of junction of Hwy. 20 and Walker Ridge Rd. Comment
  HSC68122  Arctostaphylos viscida J. P. Smith, J. O. Sawyer 1972-4-1 5167 Lake 6.2 mi. N of junction of Hwy. 20 and Walker Ridge Rd. Comment
  HSC85790  Arctostaphylos viscida Rob Marheine, Tim Tilghman, Bruce Delgado 1987-4-10 Lake 6.5 mi. N of Hwy. 20 on Walker Ridge Rd. Comment
  UCD15253  Arctostaphylos viscida R. Robichaux 1975-4-20 36 Colusa six miles northwest of Highway 20 on the north side of Walker Ridge road. Comment
  UCD52213  Arctostaphylos viscida Roman Gankin 1958-4-26 292 Lake 2 miles up Bartlett Springs Road from junction to Bartlett Springs on Wilbur Springs-Leesville Road. Lake County near Colusa County line, California. Comment
  UCD52469  Arctostaphylos viscida R. Robichaux 1975-4-20 36 Colusa six miles northwest of Highway 20 on the north side of Walker Ridge road. 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
  UCR52388  Arctostaphylos viscida Sandy Floyd, Tom Munton, T'ai Roulston 1987-4-11 84 Lake Blue Oak Campground, 8 mi north of Hwy 20 on Walker Ridge Road Comment
  CHSC88555  Arctostaphylos viscida subsp. pulchella L. P. Janeway; B. Castro 2001-6-3 7095 Colusa Inner North Coast Ranges. Spring near head of Doyle Canyon on east side of Walker Ridge, about 2.7 km (air) south of Bartlett Springs Road. 799 Comment
  RSA182012  Arctostaphylos viscida subsp. pulchella W. L. Jepson 1920-5-23 8977 Lake Ridge between Indian and Bear Valleys. 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
  UCD81854  Arctostaphylos viscida subsp. pulchella Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5738 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
  UCSC010367  Arctostaphylos viscida subsp. pulchella Dylan M. Neubauer, Tim Forsell 2016-3-30 591 Colusa (NCoRI) Walker Ridge, Bartlett Springs Road, 1.22 air-miles sse Baldy Mountain 899 Comment
  CAS-BOT-BC44549  Arctostaphylos viscida subsp. viscida Eric B. Peterson; Thomas Ward; Matt Foruria 1995-4-1 47 Colusa Walker Ridge Rd., 0.9 mile NE of junction with Indian Valley Access Rd., adjacent to Freshwater Branch Creek. 810 Comment
  CAS-BOT-BC47419  Arctostaphylos viscida subsp. viscida Roman Gankin 1958-4-26 292 Lake on Leesville-Bartlett Springs road, ca. 2 miles west of junction of this road and Leesville-Wilbur Springs road Comment
  JEPS38780  Arctostaphylos viscida subsp. viscida W. L. Jepson 1920-5-23 8977 Lake ridge betw. Indian Valley and Bear Valley (ne Lake Co.) Comment
  RSA589937  Arctostaphylos viscida subsp. viscida Michael A. Vincent, Robert Rhode, Karl Vincent 1996-3-30 7301 Colusa Along Brim Rd., 1.9 mi. W juct . Bear Valley Rd. Comment
  SBBG114894  Arctostaphylos viscida subsp. viscida C. Bornstein 1999-3-19 Colusa Brim Rd 396 Comment
Read comments
Dec 10 2014
  SBBG114895  Arctostaphylos viscida subsp. viscida C. Bornstein 1999-3-19 Colusa Brim Rd 396 Comment
Read comments
Dec 10 2014
  SBBG25408  Arctostaphylos viscida subsp. viscida R. Gankin 1958-4-26 292 Colusa Leesville-Bartlett Springs Rd, ca. 2 mi W of jct of this rd and Leesville-Wilbur Springs Rd, near Colusa-Lake County line 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
  UCD82434  Argemone munita Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5659 Colusa Walker Ridge. Along Walker Ridge Road, ca. 0.5 road mi N of intersection with road to Indian Valley Reservoir. Parking area, undeveloped roads, flats and slopes on W side of road. 839 Comment
  HSC41876  Argemone munita subsp. rotundata Richard Runyon 1977-4-24 34 Colusa Along Walker Ridge Rd. above Barrel Springs Campground 701 Comment
  JEPS16204  Argemone rotundata Rimo Bacigalupi, Arthur Holmgren 1950-4-26 3178 Colusa just w of base of the grade to Indian Valley (Bartlett Mountain Road), just w of Bear Valley, Inner North Coast Ranges, Bear Valley; Inner North Coast Ranges Comment
  UC1053477  Argemone rotundata Rimo Bacigalupi, Arthur Holmgren 1950-4-26 3178 Colusa just w of base of the grade to Indian Valley (Bartlett Mountain Road), just w of Bear Valley, Inner North Coast Ranges Indian Valley; Inner North Coast Ranges Comment
  UCD84565  Artemisia douglasiana Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6090 Lake Walker Ridge. Picnic Area near wetland/marsh. 899 Comment
  UCD84440  Asclepias eriocarpa Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6050 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
  CHSC71414  Asclepias fascicularis Vernon H. Oswald; Lowell Ahart 1998-7-15 9266 Colusa Bartlett Springs Rd. 1.6 mi west of Bear Valley Rd. 487 Comment
  UCD82491  Asclepias fascicularis Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5677 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
  UCD164137  Asclepias speciosa Craig Thomsen 2000-6-12 2364 Colusa Bear Valley. About 7 miles north of Hwy 20. Comment
  UCD82583  Astragalus breweri Craig D. Thomsen; J. Wiegand, S. Harrison, G. Harrington, A. Fulks 2008-4-22 2728 Colusa Walker Ridge, 4 mi N of Hwy 20, ca. 1.5 mi E of Walker Ridge Rd. 609 Comment
  CDA26635  Astragalus clevelandii L. Ahart 2003-7-14 10403 Lake On the west side of the second causeway going southwest on Bartlett Springs Road, Indian Valley Reservoir. Comment
Read comments
Jun 8 2016
  CHSC84189  Astragalus clevelandii Lowell Ahart 2003-7-14 10397 Lake Near a small stream, at Barrel Spring, about 1 1/2 miles (air) south of Bartlett Springs Road, about 2 miles (air) west of Bear Valley. 396 Comment
  CHSC84467  Astragalus clevelandii Lowell Ahart 2003-7-14 10403 Lake Along a small stream, on the west side of the second causeway going southwest of Bartlett Springs Road, Indian Valley Reservoir. 449 Comment
  GH58686  Astragalus clevelandii D. Cleveland 1882-06-01 - 1882-07-01 Unknown Indian Valley Comment
  JEPS104124  Astragalus clevelandii Lowell Ahart 2003-7-14 10397 Lake Near a small stream, at Barrel Spring, ca 1 1/2 mi (air) south of Bartlett Springs Rd, ca 2 mi (air) w of Bear Valley. 396 Comment
  JEPS104266  Astragalus clevelandii Lowell Ahart 2003-7-14 10403 Lake Along a small stream, on the w side of the second causeway going sw of Bartlett Springs Rd, Indian Valley Reservoir. 449 Comment
  JEPS104446  Astragalus clevelandii Lowell Ahart 2003-7-14 10403 Lake Along a small stream, on the w side of the second causeway going sw of Bartlett Springs Rd, Indian Valley Reservoir. 449 Comment
  SD8538  Astragalus clevelandii Daniel Cleveland 1882-7-1 Lake Indian Valley Comment
  SD8539  Astragalus clevelandii Daniel Cleveland Jun 1882 Lake Indian Valley Comment
Read comments
Sep 28 2012
  SEINET13711209  Astragalus clevelandii Lowell William Ahart, Lowell William Ahart 2003-1 10403 Lake Indian Valley Reservoir (39 Deg 09'46.2"N, 122 Deg 32'39.1"W) 1476 Ft. 54 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
  CDA24962  Astragalus gambelianus G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17104 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  HSC45674  Astragalus gambelianus Stephen Plant 1978-4-23 227 Lake Barrel Springs Campground 701 Comment
  UCD163837  Astragalus gambelianus Craig D. Thomsen 2001-4-12 2466 Colusa Bear Valley. About 7 miles north of Hwy 20. Comment
  UCSC0010466  Astragalus gambelianus Dylan M. Neubauer, Tim Forsell 2016-3-31 597 Colusa (NCoRI) Walker Ridge, Walker Ridge Road, 1.78 air-miles sse Cold Spring Mountain 815 Comment
  CDA14185  Astragalus rattanii var. jepsonianus G. F. Hrusa 1993-5-2 10881 Lake Inner North Coast Ranges; Upper parts of N end of Walker Ridge btwn. Bear Valley and Indian Valley Reservoir. Comment
  CHSC115197  Astragalus rattanii var. jepsonianus Lowell Ahart 2015-4-28 20094 Lake In the meadow, about 150 yards west of Barrel Spring Meadow, about 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the interstion of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. 696 Comment
  CHSC46306  Astragalus rattanii var. jepsonianus Vernon Oswald 1986-5-12 2006 Colusa Brim Rd. (Bartlett Springs Rd.) 1.8 mi w of Bear Valley Rd. 502 Comment
  HSC42246  Astragalus rattanii var. jepsonianus Rich White 1977-4-24 35 Lake Barrel Springs Campground 701 Comment
  HSC43176  Astragalus rattanii var. jepsonianus D. L. Goforth 1977-4-24 29 Lake Barrel Springs Campground. 701 Comment
  HSC44108  Astragalus rattanii var. jepsonianus Barbara Kelly 1977-4-24 390 Colusa Along Walker Ridge Rd. above Barrel Springs Campground. 701 Comment
Read comments
Jul 31 2014
  HSC45693  Astragalus rattanii var. jepsonianus Christopher Knopp 1978-4-23 30 Lake Barrel Springs Campground 701 Comment
  JEPS117121  Astragalus rattanii var. jepsonianus Peter Warner 2010-5-16 150 Lake Walker Ridge, Walker Ridge Rd., ~1.4 km S of jct. with Bartlett Springs and Brim rosds, at Barrel Springs camping area, along interior road and cable fence, and west of fence Comment
  JEPS123903  Astragalus rattanii var. jepsonianus Lowell Ahart 2015-4-28 20094 Lake About 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. Comment
  JEPS94661  Astragalus rattanii var. jepsonianus Vernon Oswald and Lowell Ahart 1998-5-7 9013 Lake Bartlett Springs Rd. 3.7 mi w Bear Valley Rd. (0.8 mi w of Sawtelle Valley and Grapevine roads) 627 Comment
  JEPS94796  Astragalus rattanii var. jepsonianus Vernon Oswald and Lowell Ahart 1998-5-7 9013 Lake Bartlett Springs Road 3.7 mi wof Bear Valley Road (0.8 mi w of Sawtelle Valley and Grapevine Flat Roads); Bartlett Springs Road 627 Comment
  RSA415840  Astragalus rattanii var. jepsonianus Dwain L. Goforth 1977-4-24 29 Lake Barrel Springs Campground. 701 Comment
  UCD84528  Astragalus rattanii var. jepsonianus Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6079 Lake Lake County. Walker Ridge. Along Walker Ridge Road. Barrel Spring. 701 Comment
  UCD84581  Astragalus rattanii var. jepsonianus Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6106 Lake Walker Ridge. Along Bartlett springs road just west of Walker Ridge Rd intersection. Meadow on south side of road. 647 Comment
  HSC45673  Astragalus tener Stephen Plant 1978-4-23 227 Lake Barrel Springs Campground 701 Comment
  CDA21526  Athysanus pusillus G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17089 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  UCSC010467  Athysanus pusillus Dylan M. Neubauer, Tim Forsell 2016-3-31 596 Colusa (NCoRI) Walker Ridge, Walker Ridge Road, 1.78 air-miles sse Cold Spring Mountain 815 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
  UCD82621  Avena fatua Craig Thomsen; G. Harrington 2009-5-12 2891 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 710 Comment
  UCD82105  Baccharis pilularis Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5632 Lake 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. 821 Comment
  CAS-BOT-BC98151  Baccharis salicifolia B. Ellyson; J. Hooke; D. Newman 1996-5-4 32 Lake Benmore Canyon, Blue Oak Campground - 5.3 miles on Indian Reservoir Road; 57 miles east of Hwy. 101 on Hwy. 20. 548 Comment
  HSC92106  Baccharis salicifolia D. Baxter, S. Boren, C. Williams 1994-4-23 9 Lake Blue Oak Campground 549 Comment
  HSC41860  Balsamorhiza macrolepis K. Irwin 1977-4-24 299 Colusa Along Walker Ridge Rd. above Barrel Springs Campground 701 Comment
  HSC44271  Balsamorhiza macrolepis D. L. Goforth 1977-4-24 26 Lake Barrel Springs Campground. 701 Comment
  CHSC69867  Balsamorhiza macrolepis var. macrolepis B. Castro; B. Corbin, K. Earll, L. Hanson, D. Isle, L. 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 jcn Bartlett Springs Rd and Walker Ridge Rd. (Site is a few hundred feet E of Lake Co. line.) 716 Comment
  CHSC70963  Balsamorhiza macrolepis var. macrolepis Vernon Oswald; Lowell Ahart 1998-5-7 9010 Colusa Bartlett Springs Rd. 2.8 mi west of Bear Valley Rd., 0.1 mi east of Sawtelle Valley and Grapevine Flat road. 633 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
  UCD82586  Barbarea vulgaris Craig D. Thomsen; J. Wiegand, S. Harrison, G. Harrington, A. Fulks 2008-4-22 2731 Colusa Walker Ridge. Eaton Springs, 4 mi N of Hwy 20, ca. 1 mi E of Walker Ridge Rd. 609 Comment
  UCD148049  Berberis aquifolium Andrew Fulks 2014-4-11 s.n. Lake Above Benmore Canyon. Silver Spur Ranch. Private land. 487 Comment
  HSC25602  Berberis aquifolium var. dictyota J. P. Smith, J. O. Sawyer 1971-6-6 4746 Lake Grapevine Flat Comment
  HSC27289  Berberis aquifolium var. dictyota J. P. Smith, J. O. Sawyer 1972-4-1 5179 Lake Wuntun Campground Comment
  HSC31389  Berberis aquifolium var. dictyota Maralyn O'Meara, Gary S. Lester 1974-5-4 354 Lake Along Walker Ridge Rd., near turnoff to Wintun Campground 915 Comment
  UCD84563  Berberis aquifolium var. dictyota Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6088 Lake Walker Ridge. Picnic Area near wetland/marsh. 899 Comment
  CDA11388  Berberis dictyota G. F. Hrusa, K. van Katwyk 1995-4-22 12108 Colusa Inner North Coast Ranges; Walker Ridge Road approximately 6 miles N of Highway 20. Comment
  CDA40141  Berberis dictyota G. F. Hrusa, R. Gross, G. Holstein 2014-5-14 18595 Lake North Coast Ranges; Silver Spur Ranch. Benmore Canyon Rd. in upper Benmore Canyon 1 1/2 mi. S of spillway at Indian Valley Reservoir. 525 Comment
  UCD82536  Briza maxima Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5688 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
  CAS-BOT-BC132186  Brodiaea coronaria subsp. rosea Ella D. Cantelow 1957-5-31 s.n. Lake Indian Valley, 8.1 mi. west of Leesville Comment
  CAS-BOT-BC132188  Brodiaea coronaria subsp. rosea Roger Raiche 1985-5-25 RR 50461 Lake Nr. Colusa Co line, Walker Ridge, Barrel Springs campground area 670 Comment
  JEPS54943  Brodiaea coronaria subsp. rosea Mr. and Mrs. Hugo Hamann and Eddie Dearing 1968-5-5 Lake ne end of valley Little Indian Valley 463 Comment
  JEPS74714  Brodiaea coronaria subsp. rosea W. L. Jepson 1920-5-23 8985 Lake Indian Valley 457 Comment
  JEPS75672  Brodiaea coronaria subsp. rosea W. L. Jepson 1920-5-23 8985 Lake Indian Valley 457 Comment
  JEPS7698  Brodiaea coronaria subsp. rosea W. L. Jepson 1938-6-9 18948 Lake Indian Valley 487 Comment
  JEPS7699  Brodiaea coronaria subsp. rosea W. L. Jepson 1920-5-23 8985 Lake Indian Valley 457 Comment
  RSA276590  Brodiaea coronaria subsp. rosea W. L. Jepson 1920-5-23 8985 Lake Indian Valley 457 Comment
  UC1280474  Brodiaea coronaria subsp. rosea Theodore F. Niehaus 1965-6-7 556 Lake 0.25 mi e Cache Creek (on road in Indian Valley); Indian Valley Comment
  UC768743  Brodiaea coronaria subsp. rosea R. F. Hoover 1938-6-9 3572 Lake Indian Valley Comment
  CHSC71455  Brodiaea elegans subsp. elegans Vernon H. Oswald; Lowell Ahart 1998-7-15 9285 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. And west of Walker Ridge Rd. 0.8 mi south of Barlett Springs Rd. 640 Comment
  JEPS93864  Brodiaea elegans subsp. elegans Vernon H. Oswald and Lowell Ahart 1998-7-15 9285 Lake 0.8 mi s of Bartlett Springs Road (e side of county near Barrel Spring on e side of Baldy Mountain and w of Walker Ridge Road); Baldy Mountain 640 Comment
  UC768461  Brodiaea elegans subsp. elegans R. F. Hoover 1938-6-9 3577 Lake Indian Valley Comment
  UCD82131  Brodiaea elegans subsp. elegans Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5657 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
  SD24126  Brodiaea rosea R. F. Hoover 1938-6-9 3572 Lake Indian Valley. Comment
  RSA699786  Bromus arenarius L. Ahart 2004-6-30 11148 Glenn on the north side of Grindhouse Creek, just east of the deep wash, about 50 yards east of the bridge across Grindhouse Creek, about 50 yards west of the Grindhouse Rancheria Indian Reservation. 191 Comment
  UCD81879  Bromus carinatus Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5759 Lake Walker Ridge. Picnic area near Cold Spring. 912 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
  HSC66663  Bromus hordeaceus S. Harris, B. Ferguson, S. Smith 1980-4-19 Lake Coldsprings Campground, along access road to Indian Valley Dam Comment
  HSC98355  Bromus hordeaceus Brent Helm, Mark Steiger, Curtis Miller 1988-4-16 65 Lake 11.6 mi. up Hwy. 20 1067 Comment
  UCD84558  Bromus hordeaceus Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6083 Colusa Walker Ridge. Along Walker Ridge Road, N of turnoff to Indian Valley Reservoir but S of Til Jones Springs. Many old undeveloped roads here. 817 Comment
  CAS-BOT-BC231520  Bromus laevipes Ellen Dean; C. Thomsen; G. Harrington; R. Wilmarth; R. Wenk 2010-6-2 6057 Lake Walker Ridge. Picnic Area near wetland/marsh 899 Comment
  CDA21532  Bromus laevipes G. F. Hrusa, R. Gross 2008-5-23 17443 Lake North Coast Ranges; Slope above N. Fk. Cache Cr. +/- 1/2 mi. below spillway of Indian Valley Reservoir. 408 Comment
  CHSC71012  Bromus laevipes Vernon Oswald; Lowell Ahart 1998-5-7 8997 Colusa On a roadside bank. 487 Comment
  HSC31698  Bromus laevipes Thomas E. Higley 1974-5-4 63 Colusa 3/4 mi. N of T junction of Indian Valley. 854 Comment
  UCD81719  Bromus laevipes Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5724 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
  UCD84449  Bromus laevipes Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6057 Lake Walker Ridge. Picnic Area near wetland/marsh. 899 Comment
  HSC66032  Calandrinia ciliata S. Harris, B. Ferguson, M. Smith, M. Moble 1980-4-19 Lake Along Walker Ridge Rd., 1 mi. N of junction with access road to Indian Valley Dam Comment
  CAS-BOT-BC80333  Callitropsis macnabiana G. L. Stebbins 1968-5-15 6689 Lake Northeast edge of Little Indian Valley, on road from Leesville to Bartlett Springs 457 Comment
  CHSC49642  Calochortus amabilis Vernon Oswald 1986-5-12 2007 Colusa Brim Rd, (Bartlett Springs Rd.) 1.8 mi w of Bear Valley Rd. 502 Comment
  HSC25718  Calochortus amabilis J. P. Smith, J. O. Sawyer 1971-6-6 4720 Lake 0.75 mi. N of Clyde Mine, Walker Ridge Rd. Comment
  HSC66589  Calochortus amabilis D. Boyd, M. Eichelberger, Tim Messick, T. A. Ranker 1980-4-19 22 Lake Coldsprings Campground along access road to Indian Valley Dam Comment
  HSC92003  Calochortus amabilis John Cromwell, Julie Schneider, A. Thoele 1994-4-23 34 Lake Walker Ridge by intersection of Walker Ridge Rd. and Bartlett Springs Rd., top of Brim Grade 701 Comment
  JEPS101262  Calochortus amabilis Dean W. Taylor 1972-5-8 1402 Lake Walker Ridge 1127 Comment
  SEINET3884894  Calochortus amabilis D. Boyd, M. Eichelberger; T. Messick; T. Ranker 1980-4-19 22 Lake Coldsprings Campground, along access road to Indian Valley Dam.; 0 Comment
  UCR198059  Calochortus amabilis E. Jacqueline Garcia 1986-4-13 s.n. Colusa Bear Valley, 2.6 mi west of the junction of Bear Valley Road and Bartlett Springs Road, on Bartlett Springs Road 664 Comment
  UCR37573  Calochortus amabilis Michelle A. Strull, L. Linstedt, C. Houseman 1984-4-28 s.n. Lake 23 mi. NE of Clearlake Oaks via Hwy 20 and Walker Ridge Road 610 Comment
  CHSC78346  Calochortus luteus Vernon H. Oswald 2000-5-11 9917 Colusa Brim Rd. 1.5 mi west of Bear Valley Rd. 446 Comment
  JEPS127731  Calochortus luteus H. Forbes, B. Keller 2009-7-1 UCBG 32 Lake Walker Ridge Road, 10.35 km north of its junction with Hwy 20 and about 41.35 km NE of the town of Lower Lake.intersection with Bear Valley Road. Comment
  JEPS61681  Calochortus luteus W. L. Jepson 1920-5-23 8969 Colusa 2-3 mi sw Leewville (at foot of Bartlett grade, w side of Bear Valley); Bear Valley, Bartlett Grade 426 Comment
  UCD82117  Calochortus luteus Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5645 Colusa Walker Ridge. Along Walker Ridge Road, ca. 0.5 road mi N of intersection with road to Indian Valley Reservoir. Parking area, undeveloped roads, flats and slopes on W side of road. 839 Comment
  UCD82156  Calochortus splendens Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5688 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
  UCD84574  Calochortus splendens Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6099 Lake Lake County. Along Walker Ridge Road between Barrel Springs and intersection with Bartlett Springs Road. West side of the road. 1038 Comment
  UCD82499  Calochortus uniflorus Craig Thomsen; G. Harrington 2009-5-12 2858 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 707 Comment
  UCD83629  Calochortus uniflorus Fanny Ye; with PLB 102 class 2010-5-2 1 Colusa E slope of Walker Ridge. Eaton Springs. On edge of campsite/parking area. 709 Comment
  CHSC71415  Calycadenia pauciflora Vernon H. Oswald; Lowell Ahart 1998-7-15 9277 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Bartlett Springs Rd. 640 Comment
  CHSC98704  Calycadenia pauciflora L. P. Janeway 2007-6-17 9053 Lake Inner North Coast Ranges. Along dirt road 0.3 km northwest of Bartlett Springs Road and Indian Valley Reservoir; about 5.6 air km east of Hough Springs. 500 Comment
  JEPS38550  Calycadenia pauciflora W. L. Jepson 1938-6-9 18951 Lake Indian Valley , NE Lake Co. 487 Comment
  JEPS94781  Calycadenia pauciflora Vernon H. Oswald and Lowell Ahart 1998-7-15 9277 Lake e side of county near Barrel Spring (on e side of Baldy Mountain and w of Walker Ridge Road 0.8 mi s of Bartlett Springs Road); Baldy Mountain 640 Comment
  JEPS95244  Calycadenia pauciflora Steve Edwards 1996-7-26 Lake a few hundred(?) yards w of junction of Bartlett Springs Road and Walker Springs Road Walker Ridge; Bartlett Springs Road; Walker Ridge, along Bartlett Springs Road a few hundred(?) yards w of junction with Bartlett Springs Road and Walker Springs Road, in a summer-dry ephemeral streamlet on serpentinite, assoc. with Brodiaea rosea Comment
  RSA739739  Calycadenia pauciflora L. P. Janeway 2007-6-17 9053 Lake Inner N coast Ranges, along dirt road 0.3km NW of Bartlett Springs Road and Indian Valley Reservoir, 5.6 air km E of Hough Springs 500 Comment
  UCD82487  Calycadenia pauciflora Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5673 a 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
  UCD84638  Calycadenia pauciflora G. Harrington 2009-7-7 85 Colusa Walker Ridge. Along Walker Ridge Road. Til Jones spring area on W side of road. Ca 6.5 road miles N of junction with Hwy 20. W side of road. 833 Comment
  HSC86928  Calycanthus occidentalis Anthony J. Desch, Bryon Cariss 1988-4-16 34 Colusa 2 mi. W on Brim Rd. from corner of Brim Rd. and Bear Valley Rd. 518 Comment
  UC1728662  Calycanthus occidentalis Richard Olmstead 1986-6-14 853 Lake 1.3 mi from jct Bartlett Spring Road and Walker Ridge Road 560 Comment
  UC766217  Calycanthus occidentalis R. F. Hoover 1938-6-9 3580 Lake ridge between Indian Valley and Bear Creek Valley 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
  CHSC71446  Calyptridium quadripetalum Vernon H. Oswald; Lowell Ahart 1998-7-15 9283 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Bartlett Springs Rd. On bed of drainages and roadside ditches. 640 Comment
  HSC25615  Calyptridium quadripetalum J. P. Smith, J. O. Sawyer 1971-6-6 4743 Lake Buck Flat Recreation Site Comment
  HSC25723  Calyptridium quadripetalum J. P. Smith, J. O. Sawyer 1971-6-6 4716 Lake 0.75 mi. N of Clyde Mine, Walker Ridge Rd. Comment
  JEPS93807  Calyptridium quadripetalum Vernon H. Oswald and Lowell Ahart 1998-7-15 9283 Lake 0.8 mi s of Bartlett Springs Road (e side of county near Barrel Spring on e side of Baldy Mountain and w of Walker Ridge Road); Baldy Mountain 640 Comment
  UCD100322  Calyptridium quadripetalum Neil Miller 1973-6-3 100 Lake roadside of Bartlett Springs Road on Walker Ridge. 609 Comment
  UCD100323  Calyptridium quadripetalum Vernon H. Oswald; Lowell Ahart 1998-7-15 9283 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd., 0.8 mi south of Barlett Springs Rd. 640 Comment
  UCD82524  Calyptridium quadripetalum Craig Thomsen; G. Harrington 2009-5-12 2881 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. East facing hillslope above (west border) Eaton Springs meadow complex. 722 Comment
  HSC41916  Calystegia collina subsp. collina M. A. Baker 1977-4-24 225 Colusa Walker Ridge Rd. above Barrel Springs Campground 701 Comment
  HSC45694  Calystegia collina subsp. collina Christopher Knopp 1978-4-23 29 Lake Barrel Springs Campground 701 Comment
  HSC47660  Calystegia collina subsp. collina Sheila Logan 1978-4-22 47 Lake Barrel Springs Campground; E side of campground 488 Comment
  UCR138664  Calystegia collina subsp. collina B. Ellyson, J. Hooke, D. Newman 1996-5-4 38 Colusa Wilbur Springs, Walker Ridge Road. 8.4 mi north of alker Ridge Road and Indian Reservoir Road intersection on Walke Ridge Road; 57 mi east of Hwy 101 on Hwy 20 701 Comment
  CHSC48298  Calystegia collina subsp. oxyphylla Vernon Oswald 1986-5-12 2019 Lake Brim Rd. (Bartlett Springs Rd.) 0.2 mi w of the road to Barrel Spring. 624 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
  HSC100122  Calystegia collina subsp. oxyphylla Christopher Knopp 1978-4-23 29 Lake Barrel Springs Campground 701 Comment
  JEPS94202  Calystegia collina subsp. oxyphylla Vernon Oswald and Lowell Ahart 1998-5-7 9000 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
  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
  UCD110421  Calystegia collina subsp. oxyphylla Daniel Slakey; CNPS volunteers 2011-6-11 7 Lake Walker Ridge. W of Walker Ridge Rd., in area that was burned in 2008. About 9 km N of Hwy.20 on Walker Ridge Rd. Border of Lake and Colusa County. 804 Comment
  UCD82493  Calystegia collina subsp. oxyphylla Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5682 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
  UCD84443  Calystegia collina subsp. oxyphylla Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6051 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
  UC465949  Calystegia occidentalis subsp. occidentalis F. Stephens 1894-6-5 Lake Little Indian Valley Comment
  UCD81718  Calystegia occidentalis subsp. occidentalis Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5723 Colusa Walker Ridge. Along Walker Ridge Road. Til Jones Spring area on W side of road, ca. 6.5 road mi N of junction with Hwy 20. W side of road. 833 Comment
  UCR37885  Calystegia subacaulis K. Faber, Scott LaChance, Mike Rekart 1984-4-28 10 Lake Indian Valley access road, NE of Clearlake. 854 Comment
  UCR40024  Calystegia subacaulis P. Williams, Brian Kearney, Mike Malamus 1984-4-28 s.n. Lake Blue Oak Campground 610 Comment
  CHSC70985  Camissoniopsis hirtella Vernon Oswald; Lowell Ahart 1998-5-7 9004 Colusa Bartlett Springs Rd. 2.1 mi west of Bear Valley Rd., 0.8 mi east of Sawtelle Valley and Grapevine Flat roads. 524 Comment
  CHSC71438  Camissoniopsis hirtella Vernon H. Oswald; Lowell Ahart 1998-7-15 9296 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Bartlett Springs Rd. 640 Comment
  JEPS94220  Camissoniopsis hirtella Vernon Oswald and Lowell Ahart 1998-5-7 9004 Colusa Bartlett Springs Road 2.1 mi w of Bear Valley Road (0.8 mi e of Sawtelle Valley and Grapevine Flat Roads); Bartlett Springs Road 524 Comment
  UCD82096  Camissoniopsis intermedia Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5623 Lake 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. 821 Comment
  UCD82382  Camissoniopsis intermedia Craig Thomsen; G. Harrington 2009-5-12 2823 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
  UCD82085  Campanula angustiflora Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5612 Lake 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. 821 Comment
  HSC66591  Capsella bursa-pastoris S. Harris, B. Ferguson, M. Moble, M. Smith 1980-4-19 Lake Coldsprings Campground, along access road to Indian Valley Dam Comment
  HSC95415  Capsella bursa-pastoris Jeff Enor, Heather Nichols, Bryan Wassom 1999-3-27 10 Lake Blue Oak Recreation Area, 8 mi. off Hwy. 20 537 Comment
  UCD84570  Carduus pycnocephalus Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6095 Lake Walker Ridge. Picnic Area near wetland/marsh. 899 Comment
  UCD82620  Carex praegracilis Craig Thomsen; G. Harrington 2009-5-12 2889 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 710 Comment
  UCD82623  Carex praegracilis Craig Thomsen; G. Harrington 2009-5-12 2893 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 707 Comment
  CDA11401  Carex serratodens G. F. Hrusa, K. van Katwyk 1995-4-22 12121 Lake Inner North Coast Ranges; Bartlett Springs Road approx. 1 m. W of intersection of Walker Ridge Road. Comment
  CDA24964  Carex serratodens G. F. Hrusa, R. Gross 2008-5-23 17414 Lake North Coast Ranges; Above N. Fk. Cache Cr. +/- 1/2 mi. below spillway of Indian Valley Reservoir, immed. W of old resort site. 408 Comment
  CHSC114989  Carex serratodens Lowell Ahart 2015-4-10 20015 Lake On the north side of Brim Road, about 3 miles west of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. 645 Comment
  HSC27290  Carex serratodens J. P. Smith, J. O. Sawyer 1972-4-1 5173 Lake Wuntun Campground Comment
  HSC45544  Carex serratodens J. P. Smith, J. O. Sawyer 1972-4-1 5173 Lake Wuntun Campground Comment
  HSC66033  Carex serratodens S. Harris, B. Ferguson, M. Smith, M. Moble 1980-4-19 Lake Along Walker Ridge Rd., 1 mi. N of junction with access road to Indian Valley Dam Comment
  JEPS124246  Carex serratodens Lowell Ahart 2015-4-10 20015 Lake About 3 miles west of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. Comment
  UCD82442  Carex serratodens Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5666 Colusa Walker Ridge. Along Walker Ridge Road, ca. 0.5 road mi N of intersection with road to Indian Valley Reservoir. Parking area, undeveloped roads, flats and slopes on W side of road. 869 Comment
  UCD82514  Carex serratodens Craig Thomsen; G. Harrington 2009-5-12 2872 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 710 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
  UCD83755  Carex serratodens Ellen Dean; G. Harrington, K. Mawdsley, J. Shepard 2010-5-1 5952 Colusa Colusa County. Walker Ridge. Along Walker Ridge Road, Buck Flat. 875 Comment
  UCD83799  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
  CAS-BOT-BC230061  Castilleja applegatei Ellen Dean; C. Thomsen; G. Harrington; R. Wenk 2010-6-2 6046 Colusa Walker Ridge. Along Walker Ridge Road, N of turnoff to Indian Valley Reservoir but S of Til Jones Spring 817 Comment
  UC2014139  Castilleja applegatei Ellen Dean, C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6046 Colusa Colusa County. Walker Ridge. Along Walker Ridge Road, N of turnoff to Indian Valley Reservoir but S of Til Jones Spring. Many old undeveloped roads here. Comment
  UCD84431  Castilleja applegatei Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6046 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
  CHSC114942  Castilleja applegatei subsp. martinii Lowell Ahart 2015-4-10 20013 Colusa Road cut, 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. Chapararal. 500 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
  JEPS124243  Castilleja applegatei subsp. martinii Lowell Ahart 2015-4-10 20013 Colusa About 2 miles west of the intersection of Bear Valley Road and Brim Road, about 17 miles (air) west of Williams. Comment
  UCD97120  Castilleja applegatei subsp. martinii Ellen Dean; G. Harrington, J. Alderson 2011-4-10 6903 Colusa Along Brim Rd on east slope of Walker Ridge (Brim Rd becomes Bartlett Springs Rd). 438 Comment
  HSC45521  Castilleja attenuata M. Alcasas 1978-4-23 54 Lake Barrel Springs Campground. 701 Comment
  HSC66661  Castilleja attenuata D. Boyd, M. Eichelberger, Tim Messick, T. Ranker 1980-4-19 2 Lake Coldsprings Campground, along access road to Indian Valley Dam Comment
  HSC67129  Castilleja attenuata S. Harris, S. Ferguson, S. Smith, S. Moble 1980-4-19 Lake Along Walker Ridge Rd., 1 mi. N of junction with access road to Indian Valley Dam Comment
  UCD83624  Castilleja attenuata Adam Clause; with PLB 102 class 2010-5-2 3 Colusa Walker Ridge. Eaton Springs.15 meters north of the main road, on the flat valley floor. 709 Comment
  HSC44444  Castilleja densiflora R. York 1978-4-23 147 Lake Barrel Springs Campground. 701 Comment
  HSC45724  Castilleja densiflora Catherine Chin 1978-4-23 40 Lake Barrel Springs Campground. 701 Comment
  HSC45698  Castilleja exserta subsp. exserta Christopher Knopp 1978-4-23 22 Lake Barrel Springs Campground 701 Comment
  HSC48532  Castilleja exserta subsp. exserta Mark Flippo 1978-4-22 16 Lake Walker Ridge Rd., 6 mi. from Jct. with Hwy. 20, Metsker Comment
  CHSC114943  Castilleja foliolosa Lowell Ahart 2015-4-10 20014 Colusa On the northside of Brim Road, about 2 miles west of the intersection of Bear Valley Road and Brim Road, about 17 miles (air) west of Williams. Chaparral. 500 Comment
  HSC87084  Castilleja foliolosa L. Blackford, S. Branch, D. Malm 1988-4-16 68 Colusa 2 mi. W on Brim Rd. from corner of Brim Rd. and Bear Valley Rd. 518 Comment
  JEPS124244  Castilleja foliolosa Lowell Ahart 2015-4-10 20014 Colusa About 2 miles west of the intersection of Bear Valley Road and Brim Road, about 17 miles (air) west of Williams. Comment
  RSA589920  Castilleja foliolosa Michael A. Vincent, Robert M. Rhode 1996-3-30 7297 Colusa Along Brim Rd., 1.9 mi. W jct. Bear Valley Rd. Comment
  UCR37888  Castilleja foliolosa K. B. Barrows, C. G. Phillips, L. Cole, S. A. Hautain 1984-4-28 25 Colusa Descend into Bear Valley, Brim Rd., 6.0 mi. east of Bartlett Springs Rd 488 Comment
  CHSC71451  Castilleja minor subsp. spiralis Vernon H. Oswald; Lowell Ahart 1998-7-15 9271 Colusa Bartlett Springs Rd. 1.6 mi west of Bear Valley Rd. 487 Comment
  RSA466275  Castilleja minor subsp. spiralis L. F. LaPre, K. Campbell 1987-6-29 s.n. Lake Barrel Springs Camp, NE of Clear Lake at Colusa Co. line, on Walker Pass Road Comment
  UC198199  Castilleja minor subsp. spiralis Katharine Brandegee 1910-8-10 Colusa Epperson's Grade; sw Colusa Co. Comment
  UC987003  Castilleja minor subsp. spiralis C. and P. McMillan and L. R. Heckard 1951-9-16 1624 Lake e of Indian Valley (in canyon of Complexion Creek, on road from Bartlett Springs to Leesville, e Lake County) Comment
  UCD163343  Castilleja minor subsp. spiralis Craig D. Thomsen 2007-7-31 s.n. Colusa Walker Ridge. East of Eaton Springs en route to Rathburn Mine. Comment
  UCD81864  Castilleja minor subsp. spiralis Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5747 Lake Walker Ridge. Picnic area near Cold Spring. 912 Comment
  UCR50153  Castilleja minor subsp. spiralis L. F. LaPre, K. Campbell 1987-6-29 s.n. Lake Inner North Coast Ranges, Barrel Spring Camp, NE of Clear Lake at Colusa Co. line, on Walker Ridge Rd Comment
  JEPS2678 Image available Castilleja rubicundula W. L. Jepson 1920-5-24 9001 Lake Indian Valley; ; Indian Valley, N Lake Co. Comment
  UCD84578  Castilleja rubicundula Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6103 Lake Walker Ridge. Along Bartlett springs road just west of Walker Ridge Rd intersection. Meadow on south side of road. 647 Comment
  UCR37942  Castilleja rubicundula subsp. lithospermoides P. Williams, Brian Kearney, Mike Malamus 1984-4-28 74 Colusa 2.9 mi west of Leesville Lodoga Junction on Brim Road. 418 Comment
  UCR40060  Castilleja rubicundula subsp. lithospermoides K. B. Barrows, C. G. Phillips, L. Cole, S. A. Haultain 1984-4-28 27 Colusa Bear Valley, Brim Road, 2.9 mi west of Leesvillle-Lodoga Junction 418 Comment
  CHSC115196  Castilleja rubicundula subsp. rubicundula Lowell Ahart 2015-4-28 20102 Lake Along a small meadow wash, small meadow, about 150 yards west of Barrel Spring Meadow, about 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. 696 Comment
  CHSC49016  Castilleja rubicundula subsp. rubicundula Vernon Oswald 1986-5-12 2021 Lake Brim Rd. (Barlett Springs Rd.) 0.5 mi w of the road to Barrel Spring. 609 Comment
  CHSC78167  Castilleja rubicundula subsp. rubicundula Lowell Ahart 2000-6-2 8439 Lake In a meadow near a small wash, 100 feet northeast of Bartlett Springs road, about 400 yards southwest of the radio tower, about 1/4 mile west of Bartlett Springs Road and Walker Ridge Road, about 2 1/2 miles west of Bear Valley. 609 Comment
  JEPS117119  Castilleja rubicundula subsp. rubicundula Peter Warner 2010-5-16 151 Lake Walker Ridge Rd., ~ 1.4 km S of jct. with Bartlett Springs and Brim roads, at Barrel Springs camping area, in seasonally wet grassland and drainage west of cable fence Comment
  JEPS123904  Castilleja rubicundula subsp. rubicundula Lowell Ahart 2015-4-28 20102 Lake About 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. Comment
  JEPS4494  Castilleja rubicundula subsp. rubicundula A. A. Heller 1916-6-8 12380 Lake between Colusa County line and Hough's Springs Comment
  JEPS98585  Castilleja rubicundula subsp. rubicundula Lowell Ahart 2000-6-2 8439 Lake 2 1/2 mi W of Bear Valley (in a meadow near a small wash, 100 ft NE of Bartlett Springs Rd, 400 yds SW of radio tower, 1/4 mi W of Bartlett Springs Rd and Walker Ridge Rd) 609 Comment
  UCD123058  Castilleja rubicundula subsp. rubicundula S. P. Lynch 1974-5-25 593 Lake Campsite at Barrel Springs on Walker Ridge Border between Lake and Colusa County. Comment
  UCD81865  Castilleja rubicundula subsp. rubicundula Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5748 Lake Walker Ridge. Picnic area near Cold Spring. 912 Comment
  UCD82498  Castilleja rubicundula subsp. rubicundula Craig Thomsen; G. Harrington 2009-5-12 2857 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 707 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
  CDA21543  Ceanothus cuneatus G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17109 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  RSA399079  Ceanothus cuneatus Carolyn Sanford 1977-4-24 352 Colusa Above Barrel Springs Campground. 701 Comment
  CHSC101527  Ceanothus cuneatus var. cuneatus G. F. Hrusa; R. Gross, L. Houser 2008-4-11 17109 Lake Open, chaparral slopes with woodland on N faces immediately below Indian Valley Reservoir spillway into N. Fork Cache Creek tailrace. 396 Comment
  CAS-BOT-BC50808  Ceanothus integerrimus Brad Kerstetter; Roxanne Jackson; Jeff Cox 1995-5-6 043 Colusa Blue Oak Campground - Left side of road just before reaching camp from highway 20 548 Comment
  HSC25611  Ceanothus integerrimus J. P. Smith 1971-6-6 4741 Lake Comment
  UC2014137  Ceanothus integerrimus Ellen Dean, C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6059 Colusa Colusa County. On Lake County border. Along Walker Ridge Road, between Cold Spring and Buck Flat. Comment
  UCD170264  Ceanothus integerrimus D. O. Burge 2016-11-3 2188 Colusa Walker Ridge, E of Indian Valley Reservoir, roadside on Bartlett Springs Road. 980 Comment
  UCD170330  Ceanothus integerrimus D. O. Burge 2016-11-3 2189 Colusa Walker Ridge, E of Indian Valley Reservoir, roadside on Bartlett Springs Road. 860 Comment
  UCD82544  Ceanothus integerrimus Ellen Dean; G. Harrington, C. Thomsen,R. Wilmarth,Chiao-Yi Cheng 2009-5-20 5699 Colusa Walker Ridge. Along Walker Ridge just S of turn-off to picnic area near Cold Spring. 1007 Comment
  UCD84451  Ceanothus integerrimus Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6059 Colusa Colusa County. On Lake County border. Walker Ridge. Along Walker Ridge Road, between Cold Spring and Buck Flat. 971 Comment
  UCD84453  Ceanothus integerrimus Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6059 Colusa Colusa County. On Lake County border. Walker Ridge. Along Walker Ridge Road, between Cold Spring and Buck Flat. 971 Comment
  CAS-BOT-BC51087  Ceanothus jepsonii Josh Suchocki; Charlene Vullo; Kyle Wear 1995-4-1 29 Lake 1.2 miles west of Walker Ridge Rd. intersection with Indian Valley Access Rd. 682 Comment
  CAS-BOT-BC51088  Ceanothus jepsonii D. Haskamp; E. Sonnenblick; M. Taft 1995-4-1 23 Lake 1.2 miles West of Walker Ridge Rd. intersection with Indian Valley Access Rd. 682 Comment
  HSC97587  Ceanothus jepsonii A. Burgard, J. Goldsmith, J. Kalt 1996-3-30 13 Lake 1.4 mi W of Walker Ridge Rd. on Indian Reservoir Rd., 57 mi E of Hwy. 101 on Hwy. 20 683 Comment
  SBBG118114  Ceanothus jepsonii C. Bornstein, E. Collins, R. Lutsko 2004-6-18 Lake Walker Ridge Rd, 0.45 mi S of jct with Bartlett Springs Rd Comment
  UCD112067  Ceanothus jepsonii D. Sanchez-Mata 1996-7-3 s.n. Colusa Williams. Walker Ridge. Wilburg Springs-Wintun Camp. 850 Comment
  UCD15023  Ceanothus jepsonii Charles Gasser 1978-4-9 6 Lake Bear Valley/Walker Ridge, 16 miles NW on dirt road from intersections of highway 16 and highway 20; Comment
  RSA332453  Ceanothus jepsonii subsp. albiflorus Cathie Goldberg, Lynn Kunstman, L. E. Philbrick, O. S. Walsh 1980-4-19 36 Lake Along Walker Ridge Road, 0.5 miles N of jct with access road to Indian Valley Dam. Comment
  CAS-BOT-BC83782  Ceanothus jepsonii var. albiflorus D. O. Burge; Steven Kembel 2008-5-27 997 b Colusa Rathburn-Petray Mine complex, E of Eaton Springs 700 Comment
  CHSC98706  Ceanothus jepsonii var. albiflorus L. P. Janeway 2007-6-17 9056 Lake Inner North Coast Ranges. Along dirt road 0.3 km northwest of Bartlett Springs Road and Indian Valley Reservoir; about 5.6 air km east of Hough Springs. 500 Comment
  HSC42018  Ceanothus jepsonii var. albiflorus M. A. Baker 1977-4-24 221 Lake Barrel Springs Campground. 701 Comment
  HSC43201  Ceanothus jepsonii var. albiflorus J. Walker 1977-4-24 27 Colusa Along Walker Ridge Rd. above Barrel Springs Campground 701 Comment
  HSC45709  Ceanothus jepsonii var. albiflorus Sheila Logan 1978-4-23 88 Lake Barrel Springs Campground. 701 Comment
  HSC59641  Ceanothus jepsonii var. albiflorus J. P. Smith, J. O. Sawyer 1972-4-1 5166 Lake 6.2 mi. N of junction of Hwy. 20 and Walker Ridge Rd. Comment
  HSC60452  Ceanothus jepsonii var. albiflorus J. P. Smith 1977-4-24 9036 Colusa Along Walker Ridge Rd. above Barrel Springs Campground 701 Comment
  HSC66067  Ceanothus jepsonii var. albiflorus D. Boyd, M. Eichelberger, Tim Messick, T. Ranker 1980-4-19 33 Lake Along Walker Ridge Rd. 0.5 mi N of junction with access to Indian Valley Dam Comment
  HSC67053  Ceanothus jepsonii var. albiflorus Teri Bartkowski, Shane Feusier, Ruth Takaki, Carol Zimmerer 1980-4-19 25 Lake Along Walker Ridge Rd., 0.5 mi. N of junction with access road to Indian Valley Dam Comment
  HSC69913  Ceanothus jepsonii var. albiflorus Thomas W. Nelson, Jane P. Nelson 1978-4-2 3873 Lake Along Walker Ridge Rd., 6 mi. N of junction with Hwy. 20 Comment
  HSC85788  Ceanothus jepsonii var. albiflorus Rob Marheine, Bruce Delgado, Tim Tilghman 1987-4-10 Lake 6.5 mi. N of Hwy. 20 on Walker Ridge Rd. Comment
  HSC85923  Ceanothus jepsonii var. albiflorus Eric May, Susan Carter 1987-4-11 131 Lake 6.5 mi from Hwy. 20 on Walker Ridge Rd., 1.4 mi E of Blue Oak Campground, SE of Indian Valley Reservoir Comment
  HSC89679  Ceanothus jepsonii var. albiflorus William E. Avery, Mathew Henry Bergvall-Mensor, Steve Wilson 1989-4-15 Lake 762 Comment
  HSC90059  Ceanothus jepsonii var. albiflorus Grefsrud, Reed, Rohmer 1990-4-15 57 Lake Indian Valley Reservoir access rd. 1.5 mi NE of intersection with Walker Rd. 689 Comment
  HSC90069  Ceanothus jepsonii var. albiflorus C. Baldwin, A. Hiss, P. Reynolds 1990-4-14 42 Lake Indian Valley Reservoir access rd. 1.5 mi NE of intersection with Walker Ridge Rd., 20 m off rd. 689 Comment
  HSC96785  Ceanothus jepsonii var. albiflorus J. Carey, A. Hong, J. Leffingwell 1995-5-6 75 Colusa 3.2 mi N on Walker Ridge Rd. from its junction with Indian Valley Access Rd. 854 Comment
  JEPS20111  Ceanothus jepsonii var. albiflorus W. L. Jepson 1920-5-23 8976 Lake near summit of range between Bear and Indian Valleys; n.e. Lake Co. 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
  CDA40145  Ceanothus parryi G. F. Hrusa, R. Gross, G. Holstein 2014-5-14 18596 Lake North Coast Ranges; Silver Spur Ranch. Benmore Canyon Rd. in upper Benmore Canyon 1 1/2 mi. S of spillway at Indian Valley Reservoir. 525 Comment
  UCD82113  Centaurea melitensis Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5641 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
  JEPS93804  Centaurium trichanthum Vernon H. Oswald and Lowell Ahart 1998-7-15 9288 Lake 0.8 mi s of Bartlett Springs Road (e side of county near Barrel Spring on e side of Baldy Mountain and w of Walker Ridge Road); Baldy Mountain 640 Comment
  UCD82477  Centromadia Craig Thomsen; G. Harrington 2009-5-12 2855 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 707 Comment
  HSC27285  Cercis occidentalis J. P. Smith, J. O. Sawyer 1972-4-1 5175 Lake Wuntun Campground Comment
  CDA12012  Cercocarpus betuloides G. F. Hrusa 1990-4-8 7664 Lake North Coast Biodiversity Arena; W side of Walker Ridge Rd. above Bear Valley. Comment
  RSA590197  Cercocarpus betuloides Michael A. Vincent, Robert M. Rhode 1996-3-30 7299 Colusa Along Brim Rd., 1.9 mi. W jct. Bear Valley Rd. Comment
  RSA670064  Cercocarpus betuloides G. L. Webster 1989-5-6 7698 Colusa Walker Ridge, near Cold Springs Mt. Near border with Lake County. Comment
  CAS-BOT-BC137035  Cercocarpus betuloides var. betuloides Eric B. Peterson; Thomas Ward; Matt Foruria 1995-4-1 21 Lake Blue Oak Campground, about 50m up the canyon from the end of camping area, ~15m uphill from stream on N facing slope 548 Comment
  CHSC101241  Cercocarpus betuloides var. betuloides G. F. Hrusa; R. Gross; L. Houser 2008-4-11 17111 Lake Open slopes immediately below Indian Valley Reservoir spillway into N. Fk. Cache Creek tailrace. 396 Comment
  UCD113068  Cercocarpus betuloides var. betuloides G. L. Webster 1989-5-6 7698 Colusa Near border with Lake County. Crest of Walker Ridge, near Cold Springs Mountain. Comment
  HSC85793  Cercocarpus montanus var. glaber Bruce Delgado, Tim Tilghman, Rob Marheine 1987-4-10 Lake 8 mi. N of Hwy. 20 on Walker Ridge Rd., Blue Oak Campground, E end Comment
  HSC99678  Cercocarpus montanus var. glaber J. P. Smith, J. O. Sawyer 1972-4-1 5176 Lake Wuntun Campground Comment
  UCD159334  Chaenactis glabriuscula D. S. Park; E. Dean 2010-6-5 118 Colusa Walker ridge, Cold Spring Mt. Exposed serpentine outcrop. 1032 Comment
  CDA10716  Chaenactis glabriuscula var. heterocarpha Vernon H. Oswald & Lowell Ahart 1998-5-7 9011 Colusa Bartlett Springs Road 2.8 miles west of Bear Valley Road, 0.1 mile east of Sawtelle Valley and Grapevine Flat Roads. Comment
  CHSC70964  Chaenactis glabriuscula var. heterocarpha Vernon Oswald; Lowell Ahart 1998-5-7 9011 Colusa Bartlett Springs Rd. 2.8 mi west of Bear Valley Rd., 0.1 mi east of Sawtelle Valley and Grapevine Flat roads. Roadside banks. 633 Comment
  CHSC79665  Chaenactis glabriuscula var. heterocarpha L. Snyder; B. Redfern, A. de Knijf 1999-5-1 54 Lake Blue Oak Recreation area, Walker Ridge Rd, 12.8 km from Hwy 20. 536 Comment
  JEPS34158  Chaenactis glabriuscula var. heterocarpha W. L. Jepson 1920-5-23 8999 Lake Indian Valley , North Lake County Comment
  JEPS94218  Chaenactis glabriuscula var. heterocarpha Vernon Oswald and Lowell Ahart 1998-5-7 9011 Colusa Bartlett Springs Road 2.8 mi w of Bear Valley Road (0.1 mi e of Sawtelle Valley and Grapevine Flat Roads) 633 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
  UCD82735  Chaenactis glabriuscula var. heterocarpha Craig Thomsen; G. Harrington 2009-5-14 2916 Colusa Colusa County on Walker Ridge: south of spur road about 1/2 mile east of Walker Ridge Road, en route to Eaton Springs. 762 Comment
  UCD83717  Chamomilla suaveolens Joseph Schlottman; with PLB 102 class 2010-5-2 3 Colusa East slope of Walker Ridge. Eaton Springs. Adjacent to main creek. 710 Comment
  HSC66587  Cheilanthes intertexta D. Boyd, M. Eichelberger, Tim Messick, T. Ranker 1980-4-19 18 Lake Coldsprings Campground along access road to Indian Valley Dam Comment
  CAS-BOT-BC257007  Chorizanthe membranacea Doris K. Kildale 1928-5-7 4982 Lake 5 miles east of Hough's Mineral Springs Comment
  CHSC33053  Cirsium cymosum James P. Smith; John Sawyer 1971-6-6 4729 Lake 0.75 mi. north of Clyde Mine; Walker Ridge Road. Comment
  HSC68239  Cirsium cymosum J. P. Smith, J. O. Sawyer 1971-6-6 4729 Lake 0.75 mi. N of Clyde Mine, Walker Ridge Rd. Comment
  UCD159331  Cirsium cymosum D. S. Park 2010-6-5 115 Colusa Walker ridge, Cold Spring Mt. roadside, grassland. 760 Comment
  UCD82543  Cirsium cymosum Ellen Dean; G. Harrington, C. Thomsen,R. Wilmarth,Chiao-Yi Cheng 2009-5-20 5698 a Colusa Walker Ridge. Til Jones Spring area along Walker Ridge Road. 833 Comment
  CHSC88587  Cirsium douglasii var. breweri L. P. Janeway; B. Castro 2001-6-3 7099 Colusa Inner North Coast Ranges. Spring at Grapevine Flat, on top of Walker Ridge about 0.8 km east of Baldy Mountain. 884 Comment
  UCD159335  Cirsium douglasii var. breweri D. S. Park; E. Dean 2010-6-5 119 Colusa Walker ridge, Cold Spring Mt. 886 Comment
  UCD81874  Cirsium douglasii var. breweri Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5755 Lake Walker Ridge. Picnic area near Cold Spring. 912 Comment
  UCD81875  Cirsium douglasii var. breweri Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5755 Lake Walker Ridge. Picnic area near Cold Spring. 912 Comment
  CDA24950  Cirsium occidentale var. venustum G. F. Hrusa, R. Gross 2008-5-23 17422 Lake North Coast Ranges; N-facing slope above N. Fk. Cache Cr. +/- 1 mi. below spillway of Indian Valley Reservoir. 408 Comment
  CHSC101243  Cirsium occidentale var. venustum G. F. Hrusa; R. Gross 2008-5-23 17422 Lake N-facing slope above N. Fk. Cache Cr. +/- 1 mile below spillway of Indian Valley Reservoir. 408 Comment
  UC91771  Cirsium occidentale var. venustum D. Cleveland 1882-7-1 100 Lake Indian Valley Comment
  CAS-BOT-BC169769  Cistanthe quadripetala John Tucker 1948-7-14 s.n. Lake Indian Valley Comment
  CAS-BOT-BC164198  Clarkia concinna C. G. Phillips; L. Cole; S. A. Haultain; K. B. Barrows 1984-4-28 4 Lake Walker Ridge, Blue Oak Campground, 23 mi. NE of [Clearlake] Clear Lake Oaks via SR20 and Walker Ridge Rd. 609 Comment
  CAS-BOT-BC164201  Clarkia concinna A. Burgard; J. Goldsmith; J. Kalt 1996-5-3 54 Lake Blue Oak Campground. 5.3 miles west of Walker Ridge Rd. on Indian Reservoir Rd. 57 mi. east of Hwy. 101 on Hwy. 20 548 Comment
  CAS-BOT-BC164202  Clarkia concinna B. Ellyson; J. Hooke; D. Newman 1996-5-4 33 Lake Benmore Canyon, Blue Oak Campground. 5.3 miles on Indian Reservoir Road; 57 miles east of Hwy. 101 on Hwy. 20 548 Comment
  CAS-BOT-BC164203  Clarkia concinna Tamara Gedik; Thom Heinz; Rebecca Siegle 1996-5-4 46 Lake Blue Oak Campground; 5.3 miles west of Walker Ridge Rd. on Indian Reservoir Rd. 548 Comment
  CAS-BOT-BC164204  Clarkia concinna Ananda Dickie; Wendy Hooper; Rose Madrone; Kyla Waddell 1996-5-4 46 Lake 5.3 miles west of Walker Ridge Rd., on Indian Res. Rd.; 57 miles east of Hwy. 101 on Hwy 20. Blue Oak Campground 548 Comment
  CAS-BOT-BC164205  Clarkia concinna L. Blackford; S. Branch; D. Malm 1988-4-16 34 Lake 6.1 miles on Walker Ridge Road off Hwy. 20 at Blue Oak Campground 731 Comment
  UC1728652  Clarkia concinna Richard Olmstead 1984-5-15 664 Lake along dry draw on bank above rd. at outside of turn 1.2 mi. from county line 518 Comment
  UCD82196  Clarkia concinna Ellen Dean; G. Harrington, C. Thomsen,R. Wilmarth,Chiao-Yi Cheng 2009-5-20 5696 Colusa Walker Ridge. Til Jones Spring area along Walker Ridge Road. 833 Comment
  UCR37605  Clarkia concinna Michelle A. Strull, Et al. 1984-4-28 10 Colusa 6 mi east of Bartlett Springs Road, on Brim Road 488 Comment
  UCR39818  Clarkia concinna Brian Kearney, P. Williams, Mike Malamus 1984-4-28 s.n. Lake Blue Oak Campground 610 Comment
  UCD82739  Clarkia gracilis Craig Thomsen; G. Harrington 2009-5-14 2920 Colusa Walker Ridge: south of spur road about 1/2 mile east of Walker Ridge Road, en route to Eaton Springs. 822 Comment
  CAS-BOT-BC164526  Clarkia gracilis subsp. albicaulis A. A. Heller 1916-6-6 12354 Colusa Coast Range on the grade about 3 miles west of Leesville Comment
  CAS-BOT-BC164527  Clarkia gracilis subsp. albicaulis A. A. Heller 1916-6-6 12354 Colusa Coast Range on the grade about 3 miles west of Leesville Comment
  CAS-BOT-BC164528  Clarkia gracilis subsp. albicaulis Richard A. DeMartile 1983-6-15 107 Colusa Bartlett Springs Road north of Baldy Mountain Comment
  JEPS43652  Clarkia gracilis subsp. albicaulis W. L. Jepson 1920-5-24 9002 a Lake Indian Valley 457 Comment
  LA45424  Clarkia gracilis subsp. albicaulis G. L. Stebbins Jr.; Malcolm A. Nobs, J. A. Rattenbury 1947-4-27 3755 Colusa 3 mi. W of Leesville, on road to Bartlett Springs Comment
  UC930771  Clarkia gracilis subsp. albicaulis A. A. Heller 1916-6-6 12354 Colusa on grade about 3 mi w Leesville; Coast Range Comment
  CAS-BOT-BC164596  Clarkia gracilis subsp. gracilis C. G. Phillips; L. Cole; S. A. Haultain; K. B. Barrows 1984-4-28 21 Lake Walker Ridge, Indian Valley Access Rd., 1.1 mi. N of Blue Oak Campground 853 Comment
  UCD82386  Clarkia gracilis subsp. gracilis Craig Thomsen; G. Harrington 2009-5-12 2830 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
  CAS-BOT-BC228564  Clarkia gracilis subsp. tracyi Daniel Slakey; CNPS volunteers 2011-6-12 5 Lake Walker Ridge. Barrel Springs area 732 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
  CHSC68549  Clarkia gracilis subsp. tracyi Vernon H. Oswald; David Isle, Rhonda Isle 1997-5-3 8367 Lake Inner North Coast Range. Bartlett Springs Rd. (M12, County Rd. 303) at Indian Valley Reservoir. On a roadside slope. 457 Comment
  CHSC71439  Clarkia gracilis subsp. tracyi Vernon H. Oswald; Lowell Ahart 1998-7-15 9280 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Bartlett Springs Rd. 640 Comment
  CHSC88596  Clarkia gracilis subsp. tracyi L. P. Janeway 2001-6-6 7114 Colusa Inner North Coast Ranges. Eaton Springs, about 2.4 km east of Walker Ridge Road. Meadow opening. 713 Comment
  JEPS93865  Clarkia gracilis subsp. tracyi Vernon H. Oswald and Lowell Ahart 1998-7-15 9280 Lake 0.8 mi s of Bartlett Springs Road (e side of county near Barrel Spring on e side of Baldy Mountain and w of Walker Ridge Road); Baldy Mountain 640 Comment
  UC1728661  Clarkia gracilis subsp. tracyi Richard Olmstead 1986-6-14 855 Lake roadside near small moist meadow 0.7 mi. from Walker Ridge Rd. junction 707 Comment
  UCD110411  Clarkia gracilis subsp. tracyi Daniel Slakey; CNPS volunteers 2011-6-12 5 Lake Walker Ridge. Barrel Springs area. 732 Comment
  UCR80859  Clarkia gracilis subsp. tracyi G. Fred Hrusa 1993-6-1 11165 Lake Bear Valley-Bartlett Spring Road, midway up E side of Walker Ridge. 500 Comment
  UCR138658  Clarkia purpurea A. Burgard, J. Goldsmith, J. Kalt 1996-5-4 72 Colusa 8.4 mi north of Indian Reservoir Road on Walker Ridge Road; 57 mi east of Hwy 101 on Hwy 20 701 Comment
  CAS-BOT-BC240292  Clarkia purpurea subsp. quadrivulnera Ellen Dean; C. Thomsen; G. Harrington; Davis Botanical Society 2010-6-5 6085 Colusa Walker Ridge. Along Walker Ridge Road, N of turnoff to Indian Valley Reservoir but S of Til Jones Springs 817 Comment
  UC2014170  Clarkia purpurea subsp. quadrivulnera Ellen Dean, G. Harrington, C. Thomsen, Chiao-Yi Cheng, R. Wilmarth 2009-5-20 5650 Colusa Colusa County: 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. Comment
  UCD82122  Clarkia purpurea subsp. quadrivulnera Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5650 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
  UCD82130  Clarkia purpurea subsp. quadrivulnera Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5652 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
  UCD82462  Clarkia purpurea subsp. quadrivulnera Craig Thomsen; G. Harrington 2009-5-12 2840 Colusa On Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 707 Comment
  UCD84560  Clarkia purpurea subsp. quadrivulnera Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6085 Colusa Walker Ridge. Along Walker Ridge Road, N of turnoff to Indian Valley Reservoir but S of Til Jones Springs. Many old undeveloped roads here. 817 Comment
  UCR257973  Clarkia purpurea subsp. quadrivulnera Craig D. Thomsen, Gordon Harrington 2009-5-12 2840 Colusa Walker Ridge. Eaton Springs, c. 1 mi east of Walker Ridge Road 707 Comment
  CHSC115327  Claytonia exigua subsp. exigua Lowell Ahart 2015-4-10 20018 Lake On the north side of Brim Road, about 3 miles west of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. 645 Comment
  HSC44453  Claytonia exigua subsp. exigua R. York 1978-4-23 144 Lake Barrel Springs Campground. 701 Comment
  HSC45696  Claytonia exigua subsp. exigua Christopher Knopp 1978-4-23 24 Lake Barrel Springs Campground 701 Comment
  HSC66029  Claytonia exigua subsp. exigua S. Harris, B. Ferguson, M. Moble, M. Smith 1980-4-19 Lake Along Walker Ridge Rd., 1 mi. N of junction with access road to Indian Valley Dam Comment
  JEPS124240  Claytonia exigua subsp. exigua Lowell Ahart 2015-4-10 20018 Lake About 3 miles west of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. Comment
  UC1056274  Claytonia exigua subsp. exigua Rimo Bacigalupi and Arthur Holmgren 1950-4-26 3186 Colusa just w Bear Valley (slope just w of base of the grade to Indian Valley (Bartlett Mt. Road)); Inner North Coast Ranges Comment
  UCSC010465  Claytonia exigua subsp. exigua Dylan M. Neubauer, Tim Forsell 2016-3-31 600 Colusa (NCoRI) Walker Ridge, Walker Ridge Road, 1.96 air-miles sse Cold Spring Mountain 820 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
  CHSC115329  Claytonia parviflora subsp. parviflora Lowell Ahart 2015-4-10 20019 Lake On the north side of Brim Road, about 3 miles west of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. 645 Comment
  HSC31713  Claytonia parviflora subsp. parviflora Teresa Prendusi 1974-5-4 60 Lake 1.5 mi. from jct. to Indian Valley on Walker Ridge 1098 Comment
  UC1056273  Claytonia parviflora subsp. parviflora Rimo Bacigalupi and Arthur Holmgren 1950-4-26 3190 Lake between Bear Valley and Indian Valley (first summit on Bartlett Mt road, at Colusa-Lake county line); Inner North Coast Ranges Comment
  JEPS124239  Claytonia parvifolia subsp. parvifolia Lowell Ahart 2015-4-10 20019 Lake About 3 miles west of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. Comment
  HSC66638  Clematis lasiantha P. Powers, D. Stamp, J. Spitler, Cathy Railey, C. Macdonald 1980-4-19 7 Lake Coldsprings Campground along access rd. to Indian Valley Dam Comment
  HSC86900  Clematis lasiantha L. Blackford, S. Branch, D. Malm 1988-4-16 55 Colusa 6.1 mi. on Walker Ridge Road off Hwy 20 at Blue Oak campground 732 Comment
  HSC86892  Collinsia bartsiifolia var. bartsiifolia Pat Daly, Rudy Galindo 1988-4-16 42 Lake 6.1 mi. on Walker Ridge Rd. from Hwy. 20 to Blue Oak Campground 732 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
  UCD84575  Collinsia greenei Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6100 Lake Walker Ridge. Along Bartlett springs road just west of Walker Ridge Rd intersection. Meadow on south side of road. 647 Comment
  CHSC101240  Collinsia heterophylla G. F. Hrusa; R. Gross; L. Houser 2008-4-11 17106 Lake Open slopes immediately below Indian Valley Reservoir spillway into N. Fk. Cache Creek tailrace. 396 Comment
  HSC66017  Collinsia heterophylla D. Boyd, M. Eichelberger, Tim Messick, T. Ranker 1980-4-19 3 Lake Coldsprings Campground, along access road to Indian Valley Dam Comment
  HSC67109  Collinsia heterophylla S. Harris, B. Ferguson, S. Smith 1980-4-19 Lake Coldsprings Campground, along access road to Indian Valley Dam Comment
  HSC85776  Collinsia heterophylla Bobbi Schnell, Andrea Begnoche, Leonel Arguello 1987-4-11 Lake 8 mi. N of Hwy. 20 on Walker Ridge Rd., Blue Oak Campground Comment
  HSC85888  Collinsia heterophylla Sandy Floyd, Tom Munton, T'ai Roulston 1987-4-11 80 Lake Blue Oak Campground, 8 mi. N of Hwy. 20 on Walker Ridge Rd., SE of Indian Valley Reservoir, 50 m up stream from campground Comment
  HSC86969  Collinsia heterophylla L. Blackford, S. Branch, D. Malm 1988-4-16 35 Colusa 6.1 mi. on Walker Ridge Road off Hwy 20 at Blue Oak campground 732 Comment
  HSC89735  Collinsia heterophylla Robin Bencie, James Jones, Rich Dwerlkotte 1989-4-15 9 Lake 7.7 mi. N of Hwy. 20 just W of Walker Ridge Rd., Blue Oak Campground Comment
  HSC90173  Collinsia heterophylla Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-13 42 Lake Blue Oak Campground; Indian Valley Reservoir Access Rd., 2.5 mi. NE of intersection with Walker Ridge Rd. 534 Comment
  HSC95159  Collinsia heterophylla A. Hove, A. Poteet, C. Sanville 1999-5-1 27 Lake Walker Ridge Rd., Blue Oak Recreation Area 537 Comment
  RSA408302  Collinsia heterophylla Patty Powers, J. Spitler, D. Stamp, C Macdonald, Cathy Railey 1980-4-19 8 Lake Coldsprings Campground, along access road to Indian Valley Dam. Comment
  UCD82391  Collinsia heterophylla Craig Thomsen; G. Harrington 2009-5-12 2834 Colusa Colusa County. Walker Ridge. About 200 yds. south of spur road en route to Eaton Springs, about 1/2 mile east of Walker Ridge Rd. 822 Comment
  UCR138667  Collinsia heterophylla M. Brooks, Julie Evens, H. Johnson 1997-3-30 9 Lake Blue Oak Campground 274 Comment
  UCR37947  Collinsia heterophylla Brian Kearney, Mike Malamus, P. Williams 1984-4-28 8 Lake Blue Oak Campground 610 Comment
  HSC85789  Collinsia parviflora Bruce Delgado, Tim Tilgham, Rob Marheine 1987-4-10 Lake 8 mi. N of Hwy. 20 on Walker Ridge Rd., Blue Oak Campground Comment
  HSC85774  Collinsia rattanii Bobbi Schnell, Andrea Begnoche, Leonel Arguello 1987-4-11 Lake Barrel Springs Campground Comment
  CHSC115200  Collinsia sparsiflora var. collina Lowell Ahart 2015-4-28 20103 Lake On the west side of a small drainage, about 30 yards north of the south edge of the meadow, Barrel Spring Meadow, about 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brom Road, about 18 miles (air) west of Williams. 696 Comment
  HSC44298  Collinsia sparsiflora var. collina Barbara Kelly 1977-4-24 349 Lake Barrel Springs Campground 701 Comment
  HSC45517  Collinsia sparsiflora var. collina M. Alcasas 1978-4-23 51 Lake Barrel Springs Campground. 701 Comment
  HSC45708  Collinsia sparsiflora var. collina Sheila Logan 1978-4-23 101 Lake Barrel Springs Campground. 701 Comment
  HSC67111  Collinsia sparsiflora var. collina Teri Bartowski, Shane Feusier, Ruth Takaki, Carol Zimmerer 1980-4-19 8 Lake Coldsprings Campground along access rd. to Indian Valley Dam Comment
  HSC69916  Collinsia sparsiflora var. collina Thomas W. Nelson, Jane P. Nelson 1978-4-2 3871 Lake Along Walker Ridge Rd., 6 mi. N of junction with Hwy. 20 Comment
  HSC89705  Collinsia sparsiflora var. collina Levine, Pacheco, Murphey 1989-4-15 26 Lake Blue Oak Campground, between Walker Ridge Rd. and Indian Valley Res. Comment
  JEPS123900  Collinsia sparsiflora var. collina Lowell Ahart 2015-4-28 20103 Lake About 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. Comment
  CDA22937  Collinsia sparsiflora var. sparsiflora G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17116 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  CDA24949  Collinsia sparsiflora var. sparsiflora G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17101 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  CHSC101222  Collinsia sparsiflora var. sparsiflora G. F. Hrusa; R. Gross, L. Houser 2008-4-11 17101 Lake Open, chaparral slopes with woodland on N faces immediately below Indian Valley Reservoir spillway into North Fork Cache Creek tailrace. 396 Comment
  UCR138668  Collinsia sparsiflora var. sparsiflora M. Brooks, Julie Evens, H. Johnson 1997-3-30 13 Lake Blue Oak Campground 274 Comment
  CAS-BOT-BC230058  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
  CHSC114996  Collomia diversifolia Lowell Ahart 2015-4-28 20111 Lake By the rock barrier, Barrel Spring Meadow, about 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. 696 Comment
  CHSC48647  Collomia diversifolia Vernon Oswald 1986-5-12 2011 Colusa Brim Rd. (Bartlett Springs Rd.) 2.1 mi w of Bear Valley Rd. On a roadcut. 487 Comment
  CHSC70989  Collomia diversifolia Vernon Oswald; Lowell Ahart 1998-5-7 9006 Colusa Bartlett Springs Rd. 2.1 mi west of Bear Valley Rd., 0.8 mi east of Sawtelle Valley and Grapevine Flat roads. At roadside. 524 Comment
  HSC31583  Collomia diversifolia Thomas E. Higley 1974-5-4 70 Colusa 3/4 mi. N of T junction of Indian Valley. 854 Comment
  HSC31719  Collomia diversifolia Teresa Prendusi 1974-5-4 51 Colusa Beyond Clyde Mine 1/8 mi. 854 Comment
  HSC42020  Collomia diversifolia M. A. Baker 1977-4-24 217 Lake Barrel Springs Campground. 701 Comment
  HSC42333  Collomia diversifolia M. A. Baker 1977-4-24 223 Colusa Walker Ridge Rd. above Barrel Springs Campground 701 Comment
Read comments
Jul 31 2014
  HSC44250  Collomia diversifolia Barbara Kelly 1977-4-24 360 Lake Intersection of Bartlett Springs Rd. and Grapevine Spring Rd. 701 Comment
  HSC45681  Collomia diversifolia Patricia Shesgreen 1978-4-23 57 Lake Barrel Springs Campground 701 Comment
  HSC66064  Collomia diversifolia Teri Bartowski, Shane Feusier, Ruth Takaki, Carol Zimmerer 1980-4-19 23 Lake Along Walker Ridge Rd. .5 mi. N of jct. with access Rd. to Indian Valley Dam. Comment
  JEPS94201  Collomia diversifolia Vernon Oswald and Lowell Ahart 1998-5-7 9006 Colusa Bartlett Springs Road 2.1 mi w of Bear Valley Road (0.8 mi e of Sawtelle Valley and Grapevine Flat Roads); Bartlett Springs Road 524 Comment
  POM332471  Collomia diversifolia L. E. Philbrick, Cathie Goldberg, Lynn Kunstman, Geoff Walsh 1980-4-19 35 Lake Along Walker Ridge Road, 0.5 miles north of jct. with access road to Indian Valley Dam Comment
  RSA372076  Collomia diversifolia Katherine Brandegee 1884-07 s.n. Lake Epperson's Road Comment
  SEINET2444683  Collomia diversifolia Joanne Spitler, Patty Powers; Debbie Stamp; Cathy Railey; Cathy Macdonald 1980-4-19 30 Lake Along Walker Ridge Road, 0.5 miles N of junction with access road to Indian Valley Dam. Comment
  SEINET3860936  Collomia diversifolia Leigh A. Johnson, Robert L. Johnson 2005-5-23 05 -081 Colusa Walker Ridge Road, west side along a serpentine road cut, about a half mile south of Til Jones Spring.; 0 817 Comment
  UC84867 Image available Collomia diversifolia K. Curran 1884-7-1 Lake Epperson's Road; ; ; Epperson's Road, Lake Co. Comment
  UCD110425  Collomia diversifolia Daniel Slakey; CNPS volunteers 2011-6-11 9 Lake Walker Ridge. About 9 km N of Hwy. 20 on Walker Ridge Rd. Along and near small road heading west of Walker Ridge Rd. Border of Lake and Colusa County. 813 Comment
  UCD110428  Collomia diversifolia Daniel Slakey; CNPS volunteers 2011-6-12 10 Lake On roadcut of small ORV trail that connects to Indian Valley Reservoir Rd. About halfway between Walker Ridge Rd and Indian Valley Reservoir. 615 Comment
  UCD118038  Collomia diversifolia D. Boyd; M. Eichelberger, T. Messick, T. Ranker 1980-4-19 35 Lake Along Walker Ridge Road, 1/2 mile N of junction with access road to Indian Valley Dam. Comment
  UCD163340  Collomia diversifolia Craig D. Thomsen 2009-5-3 2811 Lake Walker Ridge, just south of Cold Spring Mountain 6.5 miles north of Hwy 20. Vicinity of Walker Ridge Rd. Along fire break road, just south of guard rail. 1066 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
  UCD82526  Collomia diversifolia Craig Thomsen; G. Harrington 2009-5-12 2882 b Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. East- facing hillslope above (west border) Eaton Springs meadow complex. 710 Comment
  UC2042496  Cordylanthus pilosus Holly Forbes and Barbara Keller 2009-7-1 Colusa Walker Ridge Rd about 6.2 mi. N of junction with Highway 20. Comment
  UCD81723  Cordylanthus pilosus Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5727 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
  CHSC78535  Cordylanthus pilosus subsp. pilosus Vernon H. Oswald 2000-8-21 9951 Lake Near Barrel Spring on Walker Ridge. 701 Comment
  JEPS98386  Cordylanthus pilosus subsp. pilosus Vernon H. Oswald 2000-8-21 9951 Lake near Barrel Spring (on Walker Ridge) 701 Comment
  CDA24957  Cornus glabrata G. F. Hrusa, R. Gross 2008-5-23 17413 Lake North Coast Ranges; N-facing slope above N. Fk. Cache Cr. +/- 1/2 mi. below spillway of Indian Valley Reservoir. 408 Comment
  CHSC101532  Cornus glabrata G. F. Hrusa; R. Gross 2008-5-23 17413 Lake N-facing slope above North Fork Cache Creek +/- 1/2 mile below spillway of Indian Valley Reservoir. 408 Comment
  UCD84448  Cornus glabrata Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6056 Lake Walker Ridge. Picnic Area near wetland/marsh. 899 Comment
  UCD82109  Croton setiger Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5637 Lake 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. 818 Comment
  UCD84442  Cryptantha Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6047 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
  CAS-BOT-BC230052  Cryptantha clevelandii Ellen Dean; G. Harrington; C. Thomsen; Chiao-Yi Cheng; R. Wilmarth 2009-5-20 5619 Lake 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 821 Comment
  JEPS123213  Cryptantha clevelandii David Gowen with Dick O'Donnell 2010-7-2 1137 Lake Large scraped area along Walker Ridge Road. Comment
  JEPS123214  Cryptantha clevelandii David Gowen with Dick O'Donnell 2010-7-2 1138 Lake Large scraped area along Walker Ridge Road. Comment
  UCD82092  Cryptantha clevelandii Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5619 Lake 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. 821 Comment
  UCD82106  Cryptantha clevelandii Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5634 Lake 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. 818 Comment
  UCD83720  Cryptantha clevelandii Joseph Schlottman; with PLB 102 class 2010-5-2 6 Colusa East slope of Walker Ridge. Eaton Springs area. Southern part of valley, near old road. 713 Comment
  UCD84551  Cryptantha clevelandii Ellen Dean; C. Thomsen, T. Hansen, and windfarm meeting 2010-6-11 6149 Colusa Walker Ridge. Just south of radio tower on Cold Spring Mountain. 945 Comment
  CDA11396  Cryptantha dissita G. F. Hrusa, K. van Katwyk 1995-4-22 12116 Lake Inner North Coast Ranges; along summit of Bartlett Springs Road at intersection with Walker Ridge Rd. Comment
  CDA11398  Cryptantha dissita G. F. Hrusa, K. van Katwyk 1995-4-22 12118 Colusa Inner North Coast Ranges; Walker Ridge Road, approx. 6 m. S of intersection with Bartlett Springs Rd. Comment
  UC2014136  Cryptantha dissita Ellen Dean, G. Harrington, K. Mawdsley, J. Shepard 2010-5-1 5947 Lake Lake County: Walker Ridge. Along Walker Ridge Road. At a lookout that overlooks Indian Valley Reservoir that is located 8.3 road miles N of the intersection of Hwy 20. Comment
  UCD83749  Cryptantha dissita Ellen Dean; G. Harrington, K. Mawdsley, J. Shepard 2010-5-1 5947 Lake Walker Ridge. Along Walker Ridge Road. At a lookout that overlooks Indian Valley Reservoir that is located 8.3 road miles N of the intersection of Hwy 20. 1054 Comment
  CDA21520  Cryptantha flaccida G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17093 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  CDA21539  Cryptantha flaccida G. F. Hrusa, R. Gross 2008-5-23 17438 Lake North Coast Ranges; Above N. Fk. Cache Cr. +/- 1/2 mi. below spillway of Indian Valley Reservoir. 408 Comment
  CHSC101226  Cryptantha flaccida G. F. Hrusa; R. Gross 2008-5-23 17438 Lake N-facing slope above North Fork Cache Creek +/- 1/2 mile below spillway of Indian Valley Reservoir. 408 Comment
  CHSC101534  Cryptantha flaccida G. F. Hrusa; R. Gross, L. Houser 2008-4-11 17073 Lake Open chaparral slopes with woodland on north faces immediately below Indian Valley Reservoir spillway into North Fork Cache Creek tailrace. 396 Comment
  HSC47568  Cryptantha flaccida Sheila Logan 1978-4-22 88 Lake Barrel Springs Campground; E side of campground 488 Comment
  UC496332  Cryptantha flaccida Doris K. Kildale 1928-5-2 4984 Lake 5 mi e Houghs Springs Comment
  UCD82485  Cryptantha flaccida Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5672 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
  CHSC106242  Cryptantha hispidula B. Castro; L. P. Janeway 2001-6-3 1258 B Colusa Inner North Coast Ranges. Spring at Grapevine flat, on top of Walker Ridge about 0.5 mi E of Baldy Mountain. East-facing slope/bench with large springy/meadowy area. At upper edges of meadow. 883 Comment
  JEPS117094  Cryptantha hispidula Peter Warner 2010-5-16 159 Colusa Walker Ridge Rd., ~ 8.3 km N of jct. with Hwy 20, ~ 1 km N of jct. w/ Indian Valley Reservoir Rd. at road-cut, both sides and adjacent slopes Comment
  UC1731393  Cryptantha hispidula Dean W. Taylor 1998-6-23 16704 Colusa Walker Ridge North Coast Ranges (along access road) 929 Comment
  UCD82513  Cryptantha hispidula Craig Thomsen; G. Harrington 2009-5-12 2871 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 710 Comment
  UCD82520  Cryptantha hispidula Craig Thomsen; G. Harrington 2009-5-12 2877 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 713 Comment
  UCD82527  Cryptantha hispidula Craig Thomsen; G. Harrington 2009-5-12 2883 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. East-facing hillslope above (west border) Eaton Springs meadow complex. 722 Comment
  UCD83811  Cryptantha hispidula Ellen Dean; G. Harrington, K. Mawdsley, J. Shepard 2010-5-1 5958 Colusa Walker Ridge, along Walker Road, just N of main turnoff to Barrel Springs. 712 Comment
  UCD82532  Cryptantha intermedia Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5684 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
  UCD163839  Cryptantha intermedia var. intermedia Craig D. Thomsen 2001-4-12 2469 Colusa Bear Valley. About 7 miles north of Hwy 20. Comment
  CAS-BOT-BC234978  Cryptantha muricata Ellen Dean; C. Thomsen; G. Harrington; R. Wilmarth; R. Wenk 2010-6-2 6058 Colusa Walker Ridge. Along Walker Ridge Rd, E side of road in turnout 981 Comment
  UC1212061  Cryptantha muricata C. R. Bell 1950-4-26 770 Colusa w of Leesville (on road to Bartlett Springs, halfway up e side of county-line ridge) Comment
  UC2014138  Cryptantha muricata Ellen Dean, C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6058 Colusa Colusa County. Walker Ridge. Along Walker Ridge Rd, E side of road in turnout. Just past Pinus attenuata groves. Comment
  UCD84446  Cryptantha muricata Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6054 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
  UCD84450  Cryptantha muricata Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6058 Colusa Walker Ridge. Along Walker Ridge Rd, E side of road in turnout. Just past Pinus attenuata groves. 981 Comment
  CDA21535  Cupressus macnabiana G. F. Hrusa, R. Gross 2008-5-23 17417 Lake North Coast Ranges; Above N. Fk. Cache Cr. +/- 1/2 mi. below spillway of Indian Valley Reservoir. Probably a waif from large populations to NE on Walker Ridge. 408 Comment
  CDA677  Cupressus macnabiana Vernon H. Oswald & Lowell Ahart 1998-5-7 9014 Lake Bartlett Springs Road on the east approach to Indian Valley Reservoir, between Complexion Spring and Kowalski Ranch. Comment
  JEPS94663  Cupressus macnabiana Vernon Oswald and Lowell Ahart 1998-5-7 9014 Lake Bartlett Springs Rd. between Complexion Canyon and Kowalski Ranch (on e approach to Indian Valley Reservoir) 457 Comment
  JEPS94799  Cupressus macnabiana Vernon Oswald and Lowell Ahart 1998-5-7 9014 Lake Bartlett Springs Road on the e approach to Indian Valley Reservoir (between Complexion Spring and Kowalski Ranch); Bartlett Springs Road 457 Comment
  RSA589940  Cupressus macnabiana Michael A. Vincent, Robert Rhode 1996-3-30 7307 Colusa Along Walker Ridge Road, 1.0 miles S of junction with Brim Road Comment
  UCD110851  Cupressus macnabiana Christopher Mallek 2008-1 WR- 1 Colusa Walker Ridge. Border of Colusa and Lake Counties. 802 Comment
  UCD133538  Cupressus macnabiana R. Robichaux 1975-4-10 36 Lake Walker Ridge Road, 6.8 miles NNW of junction wuith State Hwy 20. Comment
  UCD67665  Cupressus macnabiana D. Sanchez-Mata 1996-7-3 s.n. Colusa Williams. Walker Ridge. Wilburg Springs-Wintun Camp. 850 Comment
  CAS-BOT-BC80821  Cupressus sargentii G. L. Stebbins 1968-5-15 6890 Lake Northeast edge of Little Indian Valley, on road from Leesville to Bartlett Springs 457 Comment
  UC1585395  Cupressus sargentii R. Raiche 1989-11-1 90339 Colusa W of Williams, NW of Wilbur Springs, Walker Ridge, Freshwate Branch of E Fork Sulphur Creek between Signal Rock and Oak Grove 730 Comment
  HSC62811  Cynoglossum grande Rick Lundquist 1979-4-14 19 Colusa Buck Flat, on Walker Ridge Rd. 884 Comment
  HSC66034  Cynoglossum grande S. Harris, B. Ferguson, M. Moble, M. Smith 1980-4-19 Lake Along Walker Ridge Rd., 1 mi. N of junction with access road to Indian Valley Dam Comment
  HSC66691  Cynoglossum grande Cathy Railey, Patty Powers, Debbie Stamp, Joanne Spitler, Cathy Macdonald 1980-4-19 9 Lake Coldsprings Campground, along access road to Indian Valley Dam; N-facing slopes Comment
  UCD119165  Cynoglossum grande G. F. Hrusa 1992-2-29 9057 Lake Above Blue Oak Camp, Indian Valley. Comment
  UCD84568  Cynosurus echinatus Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6093 Lake Walker Ridge. Picnic Area near wetland/marsh. 899 Comment
  CDA21546  Dactylis glomerata G. F. Hrusa, R. Gross 2008-5-23 17415 Lake North Coast Ranges; Above N. Fk. Cache Cr. +/- 1/2 mi. below spillway of Indian Valley Reservoir, immed. W of old resort site. 408 Comment
  CHSC106228  Danthonia californica var. californica B. Castro; L. P. Janeway 2001-6-3 1253 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
  CHSC78222  Danthonia californica var. californica Lowell Ahart 2000-6-2 8437 Lake Bottom of a small wash, about 100 feet northeast of Bartlett Springs road, about 400 yards southwest of the radio tower, about 1/4 mile west of Bartlett Springs Road and Walker Ridge Road, about 2 1/2 miles west of Bear Valley. 609 Comment
  JEPS98562  Danthonia californica var. californica Lowell Ahart 2000-6-2 8437 Lake 2 1/2 mi W of Bear Valley (bottom of a small wash, 100 ft NE of Bartlett Springs Rd, 400 yds SW of radio tower, 1/4 mi W of Bartlett Springs Rd and Walker Ridge Rd) 609 Comment
  UCD81715  Datisca glomerata Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5721 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
  UCD82725  Daucus pusillus Craig Thomsen; G. Harrington 2009-5-14 2908 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
  HSC89682  Delphinium decorum subsp. tracyi William E. Avery, Mathew Henry Bergvall-Mensor, Steve Wilson 1989-4-15 Lake 7.7 mi. N of Hwy. 20, just W of Walker Ridge Rd., Blue Oak Campground 152 Comment
  HSC66060  Delphinium hesperium S. Harris, B. Ferguson, M. Smith, M. Moble 1980-4-19 Lake Along Walker Ridge Rd., 1 mi. N of junction with access road to Indian Valley Dam Comment
  HSC92589  Delphinium hesperium subsp. pallescens Moulton, Sparks, Wood 1995-5-6 35 Lake Blue Oak Campground 549 Comment
  HSC41862  Delphinium nudicaule K. Irwin 1977-4-24 302 Colusa Along Walker Ridge Rd. above Barrel Springs Campground 701 Comment
  HSC75711  Delphinium nudicaule D. Boyd, M. Eichelberger, Tim Messick, T. Ranker 1980-4-19 17 Lake Coldsprings Campground along access road to Indian Valley Dam Comment
  CAS-BOT-BC17148  Delphinium uliginosum James L. Reveal 1988-6-2 6991 Lake Barrel Springs area just west of the Walker Ridge Road, 762 Comment
  CHSC71447  Delphinium uliginosum Vernon H. Oswald; Lowell Ahart 1998-7-15 9290 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Bartlett Springs Rd. Along an intermittent stream. 640 Comment
  CHSC78160  Delphinium uliginosum Lowell Ahart 2000-6-2 8441 Lake In a meadow near a small wash, 100 feet northeast of Bartlett Springs road, about 400 yards southwest of the radio tower, about 1/4 mile west of Bartlett Springs Road and Walker Ridge Road, about 2 1/2 miles west of Bear Valley. 609 Comment
  HSC25601  Delphinium uliginosum J. P. Smith, J. O. Sawyer 1971-6-6 4747 Lake Grapevine Flat Comment
  JEPS93791  Delphinium uliginosum Vernon H. Oswald and Lowell Ahart 1998-7-15 9290 Lake 0.8 mi s of Bartlett Springs Road (e side of county near Barrel Spring on e side of Baldy Mountain and w of Walker Ridge Road); Baldy Mountain 640 Comment
  JEPS98433  Delphinium uliginosum Lowell Ahart 2000-6-2 8441 Lake 2 1/2 mi W of Bear Valley (in a meadow near a small wash, 100 ft NE of Bartlett Springs Rd, 400 yds SW of radio tower, 1/4 mi W of Bartlett Springs Rd and Walker Ridge Rd) 609 Comment
  RSA489572  Delphinium uliginosum James L. Reveal 1988-6-2 6991 Lake Barrel Springs area just west of the Walker Ridge Road, 1 mile south of the Bartlett Springs Road and about 15 miles north of Hwy 20. 762 Comment
  SBBG118102  Delphinium uliginosum C. Bornstein, E. Collins, R. Lutsko 2004-6-18 Lake Bartlett Springs Rd, W of Walker Ridge Rd 640 Comment
  UC1585383  Delphinium uliginosum R. Raiche 1989-6-20 90163 Colusa near Eaton Spring (w of Williams, n of Wilbur Springs); Walker Ridge, Deadshot Flat 710 Comment
  UCD110430  Delphinium uliginosum Daniel Slakey; CNPS volunteers 2011-6-12 16 Lake Walker Ridge. Barrel Springs area, about 15 miles N of Hwy. 20. 732 Comment
  UCD163354  Delphinium uliginosum Craig D. Thomsen 2000-5-11 2346 Lake Walker Ridge. Cold Springs area, BLM campground. Comment
  UCD82510  Delphinium uliginosum Craig Thomsen; G. Harrington 2008-5-12 2868 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 710 Comment
  UCD84577  Delphinium uliginosum Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6102 Lake Walker Ridge. Along Bartlett springs road just west of Walker Ridge Rd intersection. Meadow on south side of road. 647 Comment
  CHSC32953  Delphinium variegatum Teri Bartowski; Shane Feusier, Ruth Takaki, Carol Zimmerer 1980-4-19 28 Lake Along Walker Ridge Road, 1.0 mile north of junction with access road to Indian Valley Dam. Meadow. Comment
  UCD82458  Delphinium variegatum subsp. variegatum Craig Thomsen; G. Harrington 2009-5-12 2836 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 707 Comment
  UCD61143  Deschampsia cespitosa Freed W. Hoffman 1944-7-13 1949 Colusa Between Indian and Bear valleys. Comment
  CHSC84334  Deschampsia cespitosa subsp. cespitosa Lowell Ahart 2003-7-14 10395 Lake Near a small stream, at Barrel Spring, about 1 1/2 miles (air) south of Bartlett Springs Road, about 2 miles (air) west of Bear Valley. 396 Comment
  JEPS104239  Deschampsia cespitosa subsp. cespitosa Lowell Ahart 2003-7-14 10395 Lake Near a small stream, at Barrel Spring, ca 1 1/2 mi (air) south of Bartlett Springs Rd, ca 2 mi (air) w of Bear Valley. 396 Comment
  JEPS82284  Deschampsia cespitosa subsp. cespitosa Roger Raiche 1982-3-20 20245 Colusa Walker Ridge Comment
  UCD84520  Deschampsia danthonioides Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6071 Lake Lake County. Walker Ridge. Along Bartlett springs road just west of Walker Ridge Rd intersection. 647 Comment
  CDA40153  Dicentra chrysantha G. F. Hrusa, R. Gross, G. Holstein 2014-5-14 18598 Lake North Coast Ranges; Slopes above Indian Valley Reservoir, along access rd. Sheet 2 of 2. 557 Comment
  CDA40154  Dicentra chrysantha G. F. Hrusa, R. Gross, G. Holstein 2014-5-14 18598 Lake North Coast Ranges; Slopes above Indian Valley Reservoir, along access rd. Sheet 1 of 2. 557 Comment
  UC1053476  Dicentra chrysantha Rimo Bacigalupi and Arthur Holmgren 1950-4-26 3179 Colusa just w Bear Valley (slope just w of base of grade to Indian Valley (Bartlett Mt. Road)); Inner North Coast Ranges Comment
  HSC31688  Dichelostemma capitatum subsp. capitatum Bonnie Prange 1974-5-4 Colusa Near Clyde Mine 854 Comment
  HSC31718  Dichelostemma capitatum subsp. capitatum Teresa Prendusi 1974-5-4 50 Colusa Beyond Clyde Mine 1/8 mi. 854 Comment
  HSC41939  Dichelostemma capitatum subsp. capitatum Richard G. Runyon 1977-4-24 27 Lake Barrel Springs Campground 701 Comment
  HSC66649  Dichelostemma capitatum subsp. capitatum Cathie Goldberg, Lauren Philbrick, Lynn Kuntsman, Geoff Walsh 1980-4-19 9 Lake Coldsprings Campground, along access road to Indian Valley Dam. Comment
  HSC69918  Dichelostemma capitatum subsp. capitatum Thomas W. Nelson, Jane P. Nelson 1978-4-2 3869 Lake Along Walker Ridge Rd., 6 mi. N of junction with Hwy. 20 Comment
  HSC85757  Dichelostemma capitatum subsp. capitatum Jeff Dunk, Tallchief Comet, David Munger 1987-4-11 61 Lake Barrel Springs Campground Comment
  UCR37948  Dichelostemma capitatum subsp. capitatum Mike Malamus, P. Williams, B. Kearney 1984-4-28 6 Lake Blue Oak Campground 610 Comment
  HSC66066  Dichelostemma congestum S. Harris, B. Ferguson, M. Moble, M. Smith 1980-4-19 Lake Along Walker Ridge Rd., 0.5 mi. N of junction with access rd. to Indian Valley Dam Comment
  HSC67102  Dichelostemma congestum S. Harris, B. Ferguson, M. Moble, M. Smith 1980-4-19 Lake Coldsprings Campground, along access road to Indian Valley Dam Comment
  UCD84561  Dichelostemma volubile Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6086 Colusa Walker Ridge. Along Walker Ridge Road, N of turnoff to Indian Valley Reservoir but S of Til Jones Springs. Many old undeveloped roads here. 817 Comment
  CAS-BOT-BC153242  Diplacus kelloggii Jeanne McFarland; Kathie Meyer; Anne Mullenniex 1995-4-1 20 Lake Walker Ridge, Blue Oak Campground off of Indian Reservoir Rd. 542 Comment
  CAS-BOT-BC153244  Diplacus kelloggii D. Haskamp; E. Sonnenblick; M. Taft 1995-4-1 11 Lake Blue Oak campground on Walker Ridge Rd. Area of Benmore Canyon Creek approx. 200 m east of campsites Comment
  CHSC71452  Diplacus layneae Vernon H. Oswald; Lowell Ahart 1998-7-15 9291 Lake East side of sounty near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Barlett Springs Rd. 640 Comment
  CHSC79808  Dodecatheon hendersonii Leanna Brown 1999-3-9 42 Lake Walker Ridge. 623 Comment
  HSC66642  Dodecatheon hendersonii Cathie Goldberg, Geoff Walsh, Lauren Philbrick, Lynn Kunstman 1980-1 21 Lake Coldsprings Campground, along access road to Indian Valley Dam Comment
  RSA590196  Dodecatheon hendersonii Michael A. Vincent, Robert M. Rhode 1996-3-30 7298 Colusa Along Brim Rd., 1.9 mi. W jct. Bear Valley Rd. Comment
  UCD112600  Dodecatheon hendersonii Christopher Mallek 2008-4-17 WR2- 5 Colusa Walker Ridge. Border of Colusa and Lake Counties. 802 Comment
  UCD97119  Dodecatheon hendersonii Ellen Dean; G. Harrington, J. Alderson 2011-4-10 6902 Colusa Along Brim Rd on east slope of Walker Ridge (Brim Rd becomes Bartlett Springs Rd). 438 Comment
  UCR139075  Dodecatheon hendersonii E. Brower, S. Marubayashi, E. Perry 1997-3-30 016 Lake Blue Oak Campground, Indian Valley Reservoir. 2.5 mi past intersection of access road and Walker Ridge Road 274 Comment
  HSC100076  Dudleya cymosa William Kristan, Brian Marston, Reid Storre 1988-4-15 39 Lake 6.1 mi. on Walker Ridge Rd. off of Hwy. 20 in Blue Oak Campground Comment
  HSC66639  Dudleya cymosa Cathie Goldberg, Lynn Kunstman, Lauren Philbrick, Geoff Walsh 1980-4-19 24 Lake Coldsprings Campground, along access road to Indian Valley Dam Comment
  UCD81726  Dudleya cymosa Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5729 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. 864 Comment
  HSC87060  Dudleya cymosa subsp. cymosa Anthony J. Desch, Bryon Cariss 1988-4-16 30 Lake 6.1 mi. from Hwy. 20 on Walker Ridge Rd. in Blue Oak Campground. 579 Comment
  HSC41911  Ehrendorferia chrysantha M. A. Baker 1977-4-24 224 Colusa Walker Ridge Rd. above Barrel Springs Campground 701 Comment
  HSC60471  Ehrendorferia chrysantha J. P. Smith 1977-4-24 9038 Colusa Along Walker Ridge Rd. above Barrel Springs Campground 701 Comment
  UCD82102  Ehrendorferia chrysantha Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5629 Lake 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. 821 Comment
  CAS-BOT-BC242632  Eleocharis montevidensis Ellen Dean; K. Mawdsley; G. Harrington; R. Wilmarth; B. Rice; E. Salvia 2009-5-27 5752 Lake Walker Ridge. Picnic area near Cold Spring 912 Comment
  CHSC78198  Eleocharis montevidensis Lowell Ahart 2000-6-2 8433 Lake Bottom of a small wash, about 100 feet northeast of Bartlett Springs road, about 400 yards southwest of the radio tower, about 1/4 mile west of Bartlett Springs Road and Walker Ridge Road, about 2 1/2 miles west of Bear Valley. 609 Comment
  UCD81871  Eleocharis montevidensis Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5752 Lake Walker Ridge. Picnic area near Cold Spring. 912 Comment
  CHSC81936  Eleocharis parishii L. P. Janeway; B. Castro 2001-6-3 7102 Colusa Inner North Coast Ranges. At Buck Flat: east side of Walker Ridge at head of Gaither Canyon; about 1.3 km south-southeast of Baldy Mountain. 872 Comment
  JEPS102227  Eleocharis parishii L. P. Janeway and B. Castro 2001-6-3 7102 Colusa Inner North Coast Ranges. At Buck Flat: east side of Walker Ridge at head of Gaither Canyon; about 1.3 km south-southeast of Baldy Mountain. 872 Comment
  JEPS98434  Eleocharis parishii Lowell Ahart 2000-6-2 8433 Lake 2 1/2 mi W of Bear Valley (bottom of a small wash, 100 ft NE of Bartlett Springs Rd, 400 yds SW of radio tower, 1/4 mi W of Bartlett Springs Rd and Walker Ridge Rd) 609 Comment
  UCD163346  Eleocharis parishii Craig D. Thomsen 2000-5-11 2352 Colusa Walker Ridge. Buck Flat. 129 Comment
  UCD84576  Eleocharis parishii Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6101 a Lake Walker Ridge. Along Bartlett springs road just west of Walker Ridge Rd intersection. Meadow on south side of road. 647 Comment
  CHSC78199  Eleocharis quinqueflora Lowell Ahart 2000-6-2 8432 Lake Bottom of small wash, about 100 feet northeast of Bartlett Springs road, about 400 yards southwest of the radio tower, about 1/4 mile west of Bartlett Springs Road and Walker Ridge Road, about 2 1/2 miles west of Bear Valley. 609 Comment
  JEPS98435  Eleocharis quinqueflora Lowell Ahart 2000-6-2 8432 Lake 2 1/2 mi W of Bear Valley (bottom of small wash, 100 feet NE of Bartlett Springs Rd, 400 yds SW of radio tower, about 1/4 mi W of Bartlett Springs Rd and Walker Ridge Rd) 609 Comment
  UCD84521  Eleocharis quinqueflora Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6072 Lake Lake County. Walker Ridge. Along Bartlett springs road just west of Walker Ridge Rd intersection. 647 Comment
  UCD84633  Eleocharis quinqueflora Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6101 Lake Walker Ridge. Along Bartlett springs road just west of Walker Ridge Rd intersection. Meadow on south side of road. 647 Comment
  UC2014254  Elymus elymoides 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. Comment
  UCD82516  Elymus elymoides Craig Thomsen; G. Harrington 2009-5-12 2874 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 710 Comment
  CAS-BOT-BC247093  Elymus glaucus Ellen Dean; G. Harrington; C. Thomsen; Chiao-Yi Cheng; R. Wilmarth 2009-5-20 5673 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
  UCD82486  Elymus glaucus Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5673 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
  UC821522  Elymus multisetus A. A. Heller 1916-6-6 12357 Colusa grade about 3 mi w Leesville Comment
  JEPS477  Elymus trachycaulus W. L. Jepson 1938-6-9 18955 Colusa w slope of mts. between Indian Valley (Lake Co.) and Bear Valley (Colusa County) 579 Comment
  UC1146624  Elymus trachycaulus Freed W. Hoffman 1944-7-13 1964 Colusa between Indian Valley and Bear Valley (w Colusa Co,); North Coast Ranges Comment
  UCD81878  Elymus trachycaulus Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5758 Lake Walker Ridge. Picnic area near Cold Spring. 912 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
  UCR257974  Elymus trachycaulus Ellen Dean, Craig D. Thomsen, Gordon Harrington, R. Wilmarth, R. Wenk 2010-6-2 6067 Colusa On Lake County border. Walker Ridge, along Walker Ridge Road, Buck Flat 873 Comment
  UCD62670  Elymus trachycaulus subsp. trachycaulus G. L. Stebbins Jr. 1939-7-11 2957 Colusa 3 miles west of Leesville. Comment
  JEPS16205  Emmenanthe penduliflora Rimo Bacigalupi and Arthur Holmgren 1950-4-26 3180 Colusa Just west of base of the grade to Indian Valley (Bartlett Mt. Road), just west of Bear Valley, Inner North Coast Ranges Comment
  UC1053475  Emmenanthe penduliflora Rimo Bacigalupi and Arthur Holmgren 1950-4-26 3180 Colusa Just west of base of the grade to Indian Valley (Bartlett Mt. Road), just west of Bear Valley. Inner North Coast Ranges Comment
  UCD82384  Emmenanthe penduliflora Craig Thomsen; G. Harrington 2009-5-12 2825 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
  CHSC71429  Emmenanthe penduliflora var. penduliflora Vernon H. Oswald; Lowell Ahart 1998-7-15 9294 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Bartlett Springs Rd. 640 Comment
  UCD82133  Epilobium brachycarpum Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5663 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
  CHSC71440  Epilobium densiflorum Vernon H. Oswald; Lowell Ahart 1998-7-15 9303 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 a meadow. 792 Comment
  JEPS94756  Epilobium densiflorum Vernon H. Oswald and Lowell Ahart 1998-7-15 9303 Colusa 6.3 mi n of Highway 20 (w side of Walker Ridge Road 8.2 mi s of Bartlett Springs Road); Walker Ridge Road 792 Comment
  UCD82627  Epilobium foliosum Craig Thomsen; G. Harrington 2009-5-12 2898 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
  CHSC70986  Epilobium minutum Vernon Oswald; Lowell Ahart 1998-5-7 9005 Colusa Bartlett Springs Rd. 2.1 mi west of Bear Valley Rd., 0.8 mi east of Sawtelle Valley and Grapevine Flat roads. 524 Comment
  JEPS89970  Epilobium minutum Dean W. Taylor 1972-5-15 1408 Lake on Walker Ridge Walker Ridge 1127 Comment
  JEPS94775  Epilobium minutum Vernon Oswald and Lowell Ahart 1998-5-7 9005 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
  RSA256638  Epilobium minutum Donald Spalinger 1974-5-4 41 Lake Walker Ridge Road 1.5 miles north of Little Indian Valley Road. 1098 Comment
  UCD81733  Epilobium minutum Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5735 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. 864 Comment
  UCR138663  Epilobium pallidum B. Ellyson, J. Hooke, D. Newman 1996-5-4 36 Lake Benmore Canyn. 1.4 mi west of Walker Ridge Road on Indian Reservoir Road; 57 mi east of Hwy 101 on Hwy 20 683 Comment
  CHSC106240  Epipactis gigantea B. Castro; L. P. Janeway 2001-6-3 1257 Colusa Inner North Coast Ranges. Spring at Grapevine flat, on top of Walker Ridge about 0.5 mi E of Baldy Mountain. East-facing slope/bench with large springy/meadowy area. At upper edges of meadow. 880 Comment
  JEPS118602  Epipactis gigantea B. Castro, L. P. Janeway 2001-6-3 1257 Colusa Inner North Coast Ranges. Spring at Grapevine flat, on top of Walker Ridge about 0.5 mi E of Baldy Mountain. Leesville 7.5' quad. Comment
  UCD82570  Eriastrum tracyi Tom Zavortink; Gordon Harrington 2009-5-25 s. n. Colusa East side and downslopte of Walker Ridge Road just NE of Til Jones Spring. 779 Comment
  CAS-BOT-BC287465  Ericameria greenei Ananda Dickie; et al. 1996-5-4 50 Lake 1.4 miles W of Walker Ridge Rd, on Indian Res Rd; 57 miles E of Hwy 101 on Highway 20 682 Comment
  CAS-BOT-BC287619  Ericameria linearifolia Jeanne McFarland; Kathie Meyer; Anne Mullenniex 1995-4-1 5 Lake Walker Ridge, on N-facing slope 150' above Blue Oak Campground 579 Comment
  CDA11387  Ericameria linearifolia G. F. Hrusa, K. van Katwyk 1995-4-22 12107 Colusa Inner North Coast Ranges; Walker Ridge Road approximately 3 miles N of Highway 20. Comment
  HSC36604  Ericameria linearifolia John Rehling, Robert M. Specht 1976-3-25 138 Lake 6 mi. N on Walker Ridge Rd. from Hwy. 20 Comment
  HSC36835  Ericameria linearifolia John Rehling, Robert M. Specht 1976-3-25 138 Lake 6 mi. N on Walker Ridge Rd. from Hwy. 20 Comment
  HSC85780  Ericameria linearifolia Jeff Dunk, Tallchief Comet, David Munger 1987-4-11 58 Colusa 1.4 mi. E of Blue Oak Campground on Walker Ridge Rd. off Hwy. 20 Comment
  HSC85812  Ericameria linearifolia Sandy Floyd, Tom Munton, T'ai Roulston 1987-4-11 78 Lake 8 mi. N of Hwy. 20 on Walker Ridge Rd. at Blue Oak Campground Comment
  HSC85859  Ericameria linearifolia Tim Tilghman, Rob Marheine, Bruce Delgado 1987-4-10 Lake 8 mi. N of Hwy. 20 on Walder [Walker?] Ridge Rd., SE of Indian Valley Reservoir, Blue Oak Campground Comment
  HSC90022  Ericameria linearifolia Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-14 47 Lake Blue Oak Campground; Indian Valley Reservoir Access Rd., 2.5 mi. NE of intersection with Walker Ridge Rd. 534 Comment
  HSC90064  Ericameria linearifolia Amy Austin, Tony LaBanca, Noreen McClintock 1990-4-14 38 Lake Blue Oak Campground on Indian Valley Reservoir Rd., 2.5 mi. NE of intersection with Walker Ridge Rd. 534 Comment
  HSC95319  Ericameria linearifolia Todd Bouchier, Kathleen Gifford, Cameron Williams 1999-5-1 26 Lake Blue Oak Recreation Area; Walker Ridge Rd. 12.8 km. from Hwy. 20 536 Comment
  HSC95330  Ericameria linearifolia A. Miles, M. Malle, B. Gibbs 1999-5-1 27 Lake Blue Oak Rec. Area; Walker Ridge Rd., 1/2 km. N of campground 536 Comment
  RSA671050  Ericameria linearifolia G. Fred Hrusa 1995-4-2 12107 Colusa On Walker Ridge Road approx. 3 miles N of Highway 20 950 Comment
  UCD131145  Ericameria linearifolia G. F. Hrusa; K. Van Katwyk 1995-4-22 12107 Colusa Inner North Coast Ranges. 950 Comment
  UCD84636  Erigeron greenei G. Harrington 2009-7-7 84 Colusa Walker Ridge. Along Walker Ridge Road. Til Jones spring area on W side of road. Ca 6.5 road miles N of junction with Hwy 20. W side of road. 833 Comment
  UCD84637  Erigeron greenei G. Harrington 2009-7-21 86 Colusa Walker Ridge. Along Walker Ridge Road. Til Jones spring area on W side of road. Ca 6.5 road miles N of junction with Hwy 20. W side of road. 833 Comment
  CDA26546  Erigeron philadelphicus G. F. Hrusa, R. Gross 2008-5-23 17412 Lake North Coast Ranges; Above N. Fk. Cache Cr. +/- 1/2 mi. below spillway of Indian Valley Reservoir, immed. W of old resort site. 408 Comment
  CHSC101545  Erigeron philadelphicus G. F. Hrusa; R. Gross 2008-5-23 17412 Lake N-facing slope above N. Fork Cache Creek +/- 1/2 mile below spillway of Indian Valley Reservoir. Lower slope at farthest point to W, immediately west of old resort site. 408 Comment
  CDA22931  Eriodictyon californicum G. F. Hrusa, R. Gross 2008-5-23 17436 Lake North Coast Ranges; Above N. Fk. Cache Cr. +/- 1 mi. below spillway of Indian Valley Reservoir. 438 Comment
  CHSC101239  Eriodictyon californicum G. F. Hrusa; R. Gross 2008-5-23 17436 Lake N-facing slope above N. Fk. Cache Cr. +/- 1 mile below spillway of Indian Valley Reservoir. 438 Comment
  HSC66581  Eriodictyon californicum D. Boyd, M. Eichelberger, Tim Messick, T. Ranker 1980-4-19 7 Lake Coldsprings Campground, along access road to Indian Valley Dam Comment
  HSC96885  Eriodictyon californicum J. Carey, A. Hong, J. Leffingwell 1995-5-6 79 Lake 250 m N up Indian Valley access rd from Blue Oak recreation Site sign, W side of road 549 Comment
  RSA401486B  Eriodictyon californicum Carolyn Sanford 1977-4-24 s.n. Colusa Dry hillsides along Walker Ridge Road above Barrel Springs Campground. 701 Comment
Read comments
Jul 31 2014
  UCD84550  Eriodictyon californicum Ellen Dean; C. Thomsen, T. Hansen, and windfarm meeting 2010-6-11 6148 Colusa Walker Ridge. Along Walker Ridge Road at Cold Spring Mountain radio tower area. 1082 Comment
  NY243175  Eriogonum ampullaceum J. L. Reveal 1972-7-18 2788 Mono Along California Highway 120, 3.4 miles west of Benton and U.S. Highway 6, and 1.6 miles northeast of Benton Hot Springs. 1767.8 Comment
  SD86304  Eriogonum ampullaceum James L. Reveal, Caroline G. Reveal 1972-7-18 2788 Mono Along California Highway 120, 3.4 miles west of Benton and U.S. Highway 6, and 1.6 miles northeast of Benton Hot Springs 1768 Comment
  SEINET5324289  Eriogonum ampullaceum J. L. Reveal, C. G. Reveal 1972-7-18 2788 Mono Along California Hwy 120, 3.4 mi W of Benton and U.S. Hwy 6, and 1.6 mi NE of Benton Hot Springs 1768 Comment
  UC1395235  Eriogonum ampullaceum James L. Reveal, Caroline G. Reveal 1972-7-18 2788 Mono 1.6 mi ne Benton Hot Springs (along Clifornia Highway 120, 3.4 mi w of Benton and U.S. Highway 6) 1767 Comment
  UCD99668  Eriogonum ampullaceum James L. Reveal; Caroline G. Reveal 1972-7-18 2788 Mono along California Highway 120, 3.4 miles west of Benton and U.S. Highway 6 and 1.6 miles NE of Benton Hot Springs. 1767 Comment
  NY243066  Eriogonum brachyanthum J. L. Reveal 1972-7-18 2789 Mono Along California Highway 120, 3.4 miles west of Benton and U.S. Highway 6, and 1.6 miles northeast of Benton Hot Springs. 1767.8 Comment
  CAS-BOT-BC242579  Eriogonum dasyanthemum James L. Reveal 1988-6-2 6986 Colusa Walker Ridge Road along the Lake County line, 4.1 miles south of the Bartlett Springs Road and 3.2 miles south of the northern turnoff to Barrel Springs Campground, about 12.7 miles north of California Highway 20 990 Comment
  CDA15553  Eriogonum dasyanthemum G. F. Hrusa 1998-10-28 14904 Colusa North Coast Ranges; Summit of Walker Ridge. Comment
  HSC94132  Eriogonum dasyanthemum G. Fred Hrusa 1998-10-28 14904 Colusa Along summit of Walker Ridge 900 Comment
  UCD82091  Eriogonum dasyanthemum Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5618 Lake 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. 821 Comment
  UCD82736  Eriogonum dasyanthemum Craig Thomsen; G. Harrington 2009-5-14 2917 Colusa Colusa County on Walker Ridge: south of spur road about 1/2 mile east of Walker Ridge Road, en route to Eaton Springs. 762 Comment
  CDA21529  Eriogonum luteolum G. F. Hrusa, R. Gross 2008-5-23 17452 Lake North Coast Ranges; Indian Valley Reservoir Rd. above Reservoir, just above Blue Oak Campground. 594 Comment
  CHSC101549  Eriogonum luteolum G. F. Hrusa; R. Gross 2008-5-23 17452 Lake Roadside on Indian Valley Reservoir Rd. within chaparral above Reservoir, just above Blue Oak Campground. 594 Comment
  CAS-BOT-BC267420  Eriogonum tripodum Katharine Brandegee 1882-7-1 s.n. Lake Indian Valley Comment
  CAS-BOT-BC267422  Eriogonum tripodum Mrs. Curran 1884-7-1 s.n. Lake Indian Valley Comment
  CHSC84232  Eriogonum tripodum Lowell Ahart 2003-7-14 10399 Lake On the west side of the second causeway going southwest on Bartlett Springs Road, Indian Valley Reservoir. 449 Comment
  JEPS104391  Eriogonum tripodum Lowell Ahart 2003-7-14 10399 Lake On the w side of the second causeway going sw on Bartlett Springs Rd, Indian Valley Reservoir. 449 Comment
  UC762655  Eriogonum tripodum R. F. Hoover 1938-6-9 3573 Lake Indian Valley Comment
  UC85700  Eriogonum tripodum D. Cleveland 1882-7-1 93 Lake Indian Valley Comment
  UCD163314  Eriogonum wrightii Craig D. Thomsen 1997-4-13 1903 Colusa Bear Valley. About 6 miles north of Hwy 20. Vicinity of Trout Creek, north of Deadshot Canyon. Comment
  UC155214  Eriogonum wrightii var. trachygonum Katharine Brandegee 1910-1 Lake Indian Valley Comment
  HSC41864  Eriophyllum lanatum K. Irwin 1977-4-24 300 Colusa Along Walker Ridge Rd. above Barrel Springs Campground 701 Comment
  CDA21513  Eriophyllum lanatum var. achilleoides G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17096 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  CHSC101237  Eriophyllum lanatum var. achilleoides G. F. Hrusa; R. Gross, L. Houser 2008-4-11 17096 Lake Open, chaparral slopes with woodland on N faces immediately below Indian Valley Reservoir spillway into N. Fork Cache Creek tailrace. 396 Comment
  CHSC48153  Eriophyllum lanatum var. achilleoides Vernon Oswald 1986-5-12 2016 Lake Brim Rd. (Bartlett Springs Rd.) at the jct. of the road to Barrel Spring. 640 Comment
  HSC66640  Eriophyllum lanatum var. achilleoides Cathie Goldberg, Lynn Kunstman, Lauren Philbrick, Geoff Walsh 1980-4-19 23 Lake Coldsprings Campground, along access road to Indian Valley Dam Comment
  HSC90018  Eriophyllum lanatum var. achilleoides Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-14 48 Lake Blue Oak Campground, Indian Valley Reservoir Access Rd., 2.5 mi. NE of intersection with Walker Ridge Rd. 534 Comment
  JEPS34595  Eriophyllum lanatum var. achilleoides W. L. Jepson 1920-5-24 9028 Lake hills e Indian Valley (n Lake Co.) Comment
  UC195369  Eriophyllum lanatum var. achilleoides A. A. Heller 1916-6-6 12353 Colusa on grade about 3 mi w Leesville; Coast Range Comment
  UCR37968  Eriophyllum lanatum var. achilleoides K. B. Barrows, C. G. Phillips, L. Cole, S. A. Haultain 1984-4-28 3 Lake Walker Ridge, Blue Oak Campground, 23 mi. NE of Clearlake Oaks via State Route 20 & Walker Ridge Rd., Wilbur Springs 15' Q. 610 Comment
  CHSC84230  Eriophyllum lanatum var. grandiflorum Lowell Ahart 2003-7-14 10401 Lake On the west side of the second causeway going southwest on Bartlett Springs Road, Indian Valley Reservoir. 449 Comment
  JEPS104393  Eriophyllum lanatum var. grandiflorum Lowell Ahart 2003-7-14 10401 Lake On the w side of the second causeway going sw on Bartlett Springs Rd, Indian Valley Reservoir. 449 Comment
  HSC67110  Erodium cicutarium Teri Bartkowski, Shane Feusier, Ruth Takaki, Carol Zimmerer 1980-4-19 10 Lake Coldsprings Campground, along access road to Indian Valley Dam. Comment
  UCD82123  Erodium cicutarium Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5651 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
  UCR37895  Erodium cicutarium subsp. jacquinianum C. G. Phillips, L. Cole, S. A. Haultain, K. B. Barrows 1984-4-28 14 Lake Walker Ridge, Blue Oak Campground, 23 mi NE of Clearlake Oaks via SR20 and Walker Ridge Road, Wilbur Springs 15' Q. 610 Comment
  UC660108  Eryngium aristulatum var. aristulatum Milo S. Baker 1941-7-8 10110 Colusa s. Stony Ford (Valley along Bear Creek); Valley along Bear Creek Comment
  GH379584  Erysimum capitatum S. Harris, M. Moble, B. Ferguson & M. Smith 1980-4-19 Unknown along Walker Ridge Road, 3.7 miles north of junction with access road to Indian Valley Dam Comment
  UC1034721  Erysimum capitatum G. B. and R. P. Rossbach 1938-5-31 851 Colusa ravine slope about 18 mi w Williams Comment
  UCD163847  Erysimum capitatum Craig D. Thomsen 2000-5-30 2273 Colusa Bear Valley. About 7 miles north of Hwy 20. Comment
  HSC31394  Erysimum capitatum var. capitatum Maralyn O'Meara, Gary S. Lester 1974-5-4 351 Lake Walker Ridge Rd., 1.5 mi. N from junction with Little Indian Valley Rd., 0.2 mi. S from Cold Spring Mtn. 1098 Comment
  HSC41859  Erysimum capitatum var. capitatum K. Irwin 1977-4-24 298 Colusa Along Walker Ridge Rd. above Barrel Springs Campground 701 Comment
  HSC45737  Erysimum capitatum var. capitatum Howee Barban 1978-4-23 31 Lake Barrel Springs Campground 701 Comment
  HSC66046  Erysimum capitatum var. capitatum Teri Bartowski, Shane Feusier, Ruth Takaki, Carol Zimmerer 1980-4-19 34 Lake Along Walker Ridge Rd., 3.7 mi. N of junction with access road to Indian Valley Dam Comment
  UCD115009  Erysimum capitatum var. capitatum Clinton C. Shock 1980-5-3 76 Lake Walker Ridge, 12 miles north of State Highway 20. 609 Comment
Read comments
Aug 4 2015
  UCD81855  Erysimum capitatum var. capitatum Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5739 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
  CHSC114993  Erythranthe latidens Lowell Ahart 2015-4-28 20104 Lake About 30 yards north of the south edge of the meadow, Barrel Spring Meadow, about 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. 696 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
  CHSC84192  Erythranthe microphylla Lowell Ahart 2003-7-14 10396 Lake Near a small stream, at Barrel Spring, about 1 1/2 miles (air) south of Bartlett Springs Road, about 2 miles (air) west of Bear Valley. 396 Comment
  CHSC84227  Erythranthe microphylla Lowell Ahart 2003-7-14 10404 Lake Along a stream, on the west side of the second causeway going southwest on Bartlett Springs Road, Indian Valley Reservoir. 449 Comment
  HSC66031  Eschscholzia caespitosa S. Harris, B. Ferguson, M. Smith, M. Moble 1980-4-19 Lake Along Walker Ridge Rd., 1 mi. N of junction with access road to Indian Valley Dam Comment
  HSC86968  Eschscholzia caespitosa L. Blackford, S. Branch, D. Malm 1988-3-16 57 Lake 6.1 mi. on Walker Ridge Rd. off Hwy. 20 at Blue Oak Campground 732 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
  UCR139076  Eschscholzia caespitosa E. Brower, S. Marubayashi, E. Perry 1997-3-30 013 Lake Blue Oak Campground, Indian Valley Reservoir. 2.5 mi past intersection of access road and Walker Ridge Road 274 Comment
  UCR37886  Eschscholzia caespitosa K. Faber, Scott LaChance, Mike Rekart 1984-4-28 7 Lake Blue Oak Campground. 23 mi NE of Clearlake 610 Comment
  HSC89702  Eschscholzia lobbii Eric German, Klara Varga, Michele Cardinaux 1989-4-15 30 Lake Blue Oak Campground, 7.7 mi. N of Hwy. 20 152 Comment
  CDA11402  Euphorbia crenulata G. F. Hrusa, K. van Katwyk 1995-4-22 12122 Lake Inner North Coast Ranges; Bartlett Springs Road approx. 1 m. W of intersection of Walker Ridge Road. Comment
  CHSC115195  Euphorbia crenulata Lowell Ahart 2015-4-28 20101 Lake Along small drainage, northwest of the meadow, about 150 yards west of Barrel Spring Meadow,about a 1/4 mile (air) west of Walker Ridge Road, about 1/4 mile (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. 696 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
  CHSC70978  Euphorbia crenulata Vernon Oswald; Lowell Ahart 1998-5-7 8994 Colusa Bartlett Springs Rd. 1.6 mi west of Bear Valley Rd. Roadside bank. 487 Comment
  HSC25606  Euphorbia crenulata J. P. Smith, J. O. Sawyer 1971-6-6 4742 Lake Buck Flat Recreation Site Comment
  JEPS82274  Euphorbia crenulata Roger Raiche 1983-5-22 30339 Lake w side Walker Ridge summit (stream along Bartlett Springs Road, feeding into Indian Valley Reserovir); Indian Valley Reservoir 304 Comment
  SD8700  Euphorbia crenulata Daniel Cleveland 1882-7-1 Lake Indian Valley Lake. Comment
  UC1053473  Euphorbia crenulata Rimo Bacigalupi and Arthur Holmgren 1950-4-26 3184 Colusa just w Bear Valley (slope just w of base of grade to Indian Valley (Bartlett Mt. Road)); Inner North Coast Ranges Comment
  UCD163848  Euphorbia crenulata Craig D. Thomsen 2000-5-30 2275 b Colusa Bear Valley. About 7 miles north of Hwy 20. Comment
  UCD81867  Euphorbia lathyris Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5750 Lake Walker Ridge. Picnic area near Cold Spring. 912 Comment
  CHSC114992  Euphorbia spathulata Lowell Ahart 2015-4-28 20110 Lake About 60 south of the north edge of the meadow, Barrel Spring Meadow, about 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) west of Williams. 696 Comment
  CHSC70979  Euphorbia spathulata Vernon Oswald; Lowell Ahart 1998-5-7 9002 Colusa Bartlett Springs Rd. 2.1 mi west of Bear Valley Rd., 0.8 mi east of Sawtelle Valley and Grapevine Flat roads. 524 Comment
  CHSC78144  Euphorbia spathulata Lowell Ahart 2000-6-2 8438 Lake In a meadow near a small wash, 100 feet northeast of Bartlett Springs road, about 400 yards southwest of the radio tower, about 1/4 mile west of Bartlett Springs Road and Walker Ridge Road, about 2 1/2 miles west of Bear Valley. 609 Comment
  HSC41943  Euphorbia spathulata Richard G. Runyon 1977-4-24 32 Lake Barrel Springs Campground 701 Comment
  HSC45670  Euphorbia spathulata Stephen Plant 1978-4-23 230 Lake Barrel Springs Campground 701 Comment
  HSC60453  Euphorbia spathulata J. P. Smith 1977-4-24 9035 Lake Barrel Springs Campground 701 Comment
  JEPS123894  Euphorbia spathulata Lowell Ahart 2015-4-28 20110 Lake About 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. Comment
  JEPS94662  Euphorbia spathulata Vernon Oswald and Lowell Ahart 1998-5-7 Colusa Bartlett Springs Rd. 2.1 mi w Bear Valley Rd. (0.8 mi e of Sawtelle Valley and Grapevine Flat roads) 524 Comment
  JEPS94798  Euphorbia spathulata Vernon Oswald and Lowell Ahart 1998-5-7 9002 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
  JEPS98456  Euphorbia spathulata Lowell Ahart 2000-6-2 8438 Lake 2 1/2 mi W of Bear Valley (about 100 ft NE of Bartlett Springs road, 400 yds SW of the radio tower, 1/4 mi W of Bartlett Springs Road and Walker Ridge Road) 609 Comment
  UCD81876  Euphorbia spathulata Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5756 Lake Walker Ridge. Picnic area near Cold Spring. 912 Comment
  UCD82503  Euphorbia spathulata Craig Thomsen; G. Harrington 2009-5-12 2863 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 710 Comment
  UCD84525  Euphorbia spathulata Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6076 Lake Lake County. Walker Ridge. Along Walker Ridge Road. Barrel Spring. 701 Comment
  CDA22948  Festuca arundinacea G. F. Hrusa, R. Gross 2008-5-23 17421 Lake North Coast Ranges; N-facing slope above N. Fk. Cache Cr. +/- 1 mi. below spillway of Indian Valley Reservoir, near old resort site. 408 Comment
  UCD84515  Festuca arundinacea Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6066 Colusa Colusa County. On Lake County border. Walker Ridge. Along Walker Ridge Road. Buck Flat. 872 Comment
  CDA21527  Festuca elmeri G. F. Hrusa, R. Gross 2008-5-23 17444 Lake North Coast Ranges; Slope above N. Fk. Cache Cr. +/- 1/2 mi. below spillway of Indian Valley Reservoir. 408 Comment
  CAS-BOT-BC63012  Frangula californica subsp. crassifolia A. A. Heller 1916-6-6 12360 Colusa Coast Range on the grade about 3 mi. w. of Leesville. Comment
  CAS-BOT-BC63013  Frangula californica subsp. crassifolia A. A. Heller 1916-6-6 12360 Colusa Coast Range on the grade about 3 mi. w. of Leesville. Comment
  CAS-BOT-BC63014  Frangula californica subsp. crassifolia A. A. Heller 1916-6-6 12359 Colusa Coast Range on the grade about 3 mi. w. of Leesville. Comment
  CAS-BOT-BC63015  Frangula californica subsp. crassifolia A. A. Heller 1916-6-6 12359 Colusa Coast Range on the grade about 3 mi. w. of Leesville. Comment
  CAS-BOT-BC63016  Frangula californica subsp. crassifolia C. B. Wolf; B. D. Stark 1933-9-25 5506 Colusa Inner n. coast range, w. side of Bear Valley, near Mitchell Ranch House. Type Locality. 304 Comment
  GH425930  Frangula californica subsp. crassifolia W. L. Jepson 1920-5-23 8975 Unknown On grade over ridge to Indian Valley. Hills west of Bear Valley. 762 Comment
  HSC60182  Frangula californica subsp. tomentella J. P. Smith, J. O. Sawyer 1971-6-6 4733 Lake Scenic vista point along crest of Walker Ridge. Comment
  UCD83758  Frangula californica subsp. tomentella Ellen Dean; G. Harrington, K. Mawdsley, J. Shepard 2010-5-1 5954 Colusa Colusa County. Walker Ridge. Along Walker Ridge Road, Buck Flat. 875 Comment
  HSC27456  Fraxinus dipetala J. P. Smith, J. O. Sawyer 1972-4-1 5184 Lake Rd. between Indian Valley and Bear Valley Comment
  HSC66135  Fraxinus dipetala Cathie Goldberg, Lynn Kunstman, Lauren Philbrick, Geoff Walsh 1980-4-19 47 Colusa On Bartlett Springs Rd. Comment
Read comments
Aug 13 2014
  HSC95713  Fraxinus dipetala A. Burgard, J. Goldsmith, J. Kalt 1996-3-30 27 Lake Blue Oak Campground 5.3mi W of Walker Ridge Rd. on Indian Reservoir Rd., 57mi E of Hwy. 101 on Hwy. 20 549 Comment
  SFV18552  Fraxinus dipetala J. B. Belsher, P. C. Nichols, J. Kendall 1997-4-26 24 Lake North Coast Ranges Roadside along Indian Valley access Road, 2.5 miles past intersection of access road and Walker Ridge Road. 550 Comment
  CDA21514  Fritillaria affinis G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17095 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  HSC27153  Fritillaria affinis J. P. Smith, J. O. Sawyer 1972-4-1 5160 Lake 6.2 mi. N of junction of Hwy. 20 and Walker Ridge Rd. Comment
  HSC67124  Fritillaria affinis M. Smith, S. Harris, B. Ferguson, M. Moble 1980-4-19 Lake Along Walker Ridge Rd. 0.5 mi. N of junction with access road to Indian Valley Dam Comment
  HSC69911  Fritillaria affinis Thomas W. Nelson, Jane P. Nelson 1978-4-2 3874 Lake Along Walker Ridge Rd., 6 mi. N of junction with Hwy. 20 Comment
  RSA293156  Fritillaria affinis Thomas W. Nelson, Jane P. Nelson 1978-4-2 3874 Lake Along Walker Ridge Road 6 miles north of junction with State Route 20 Comment
  UCD112596  Fritillaria affinis Christopher Mallek 2008-4-17 WR2- 6 Colusa Walker Ridge. Border of Colusa and Lake Counties. 802 Comment
  UCD81705  Fritillaria affinis Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5713 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
  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
  UCSC010486  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
  JEPS42811  Fritillaria pluriflora Wayne Roderick 1966-3-26 Colusa 1/2 mi e of Robbers Flat (adjacent to Bartlett Springs Road, Bear Valley); Bear Valley 417 Comment
  SEINET3887076  Fritillaria pluriflora D. W. McNeal 1991-4-13 3808 Lake Above Brim Rd., ca 100 m. w. of the jct. of Walker Rd., e. of Indian Valley Reservoir.; 0 Comment
  UCD23462  Fritillaria pluriflora J. R. Griffin 1969-4-1 3073 Lake Barrel Springs, C.G. Walker Ridge. Comment
  UCD82525  Fritillaria pluriflora Craig Thomsen; G. Harrington 2009-5-12 2882 a Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. East- facing hillslope above (west border) Eaton Springs meadow complex. 722 Comment
  HSC27156  Fritillaria purdyi J. P. Smith, J. O. Sawyer 1972-4-1 5159 Lake 6.2 mi. N of junction of Hwy. 20 and Walker Ridge Rd. Comment
  HSC67131  Fritillaria purdyi S. Harris, B. Ferguson, M. Moble, M. Smith 1980-4-19 Lake Along Walker Ridge Rd., 0.5 mi. N of junction with access rd. to Indian Valley Dam Comment
  UCR37894  Fritillaria purdyi C. G. Phillips, L. Cole, S. A. Haultain, K. B. Barrows 1984-4-28 16 Lake Walker Ridge. Indian Valley Access Road, 1.1 mi. north of Blue Oak Campground, Wilbur Springs 15' Q. 854 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
  UCSC010484  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
  HSC42019  Galium andrewsii M. A. Baker 1977-4-24 219 Lake Barrel Springs Campground. 701 Comment
  HSC44442  Galium andrewsii R. York 1978-4-23 145 Lake Barrel Springs Campground. 701 Comment
  HSC45703  Galium andrewsii Sheila Logan 1978-4-23 108 Lake Barrel Springs Campground 701 Comment
  CHSC43737  Galium andrewsii subsp. andrewsii Vernon Oswald 1986-5-12 2012 Colusa Brim Rd. (Bartlett Springs Rd.) 2.1 mi W of Bear Valley Rd. 487 Comment
  CHSC48878  Galium andrewsii subsp. andrewsii Vernon Oswald 1986-5-12 2018 Lake Brim Rd. (Bartlett Springs Rd.) at the jct. Of the road to Barrel Spring. 640 Comment
  JEPS52784  Galium andrewsii subsp. andrewsii Lauramay T. Dempster and G. L. Stebbins 1967-4-8 4356 Colusa Bartlett Springs road 2.5 mi w Leesville (1.8 mi w of junction with Bear Valley Rd, w-facing slope) 530 Comment
  UCR37892  Galium andrewsii subsp. andrewsii C. G. Phillips, L. Cole, S. A. Haultain, K. B. Barrows 1984-4-28 18 Lake Walker Ridge. Indian Valley Access Road, 1.1 mi. north of Blue Oak Campground, Wilbur Springs 15' Q. 854 Comment
  UCSC010370  Galium andrewsii subsp. andrewsii Dylan M. Neubauer, Tim Forsell 2016-3-30 594 Colusa (NCoRI) Walker Ridge, Bartlett Springs Road, 1.22 air-miles sse Baldy Mountain 899 Comment
  HSC66690  Galium aparine Debbie Stamp, Joanne Spitler, Patty Powers, Cathy Railey, Cathy Macdonald 1980-4-19 1 Lake Coldsprings Campground, along access road to Indian Valley Dam Comment
  POM367758  Galium aparine D. Boyd, M. Eichelberger, T. Messick, T. Ranker 1980-4-19 8 Lake Coldsprings Campgrond, along access road to Indian Valley Dam. Comment
  UCD82724  Galium aparine Craig Thomsen; G. Harrington 2009-5-14 2907 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
  UCD82120  Galium parisiense Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5648 Colusa Walker Ridge. Along Walker Ridge Road, ca. 0.5 road mi N of intersection with road to Indian Valley Reservoir. Parking area, undeveloped roads, flats and slopes on W side of road. 839 Comment
  UCD82466  Galium parisiense Craig Thomsen; G. Harrington 2009-5-12 2843 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 707 Comment
  UCD82478  Galium parisiense Craig Thomsen; G. Harrington 2009-5-12 2856 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 707 Comment
  HSC27162  Galium porrigens var. porrigens J. P. Smith, J. O. Sawyer 1972-4-1 5155 Lake 6.2 mi. N of junction of Hwy. 20 and Walker Ridge Rd. Comment
  CDA21537  Garrya congdonii G. F. Hrusa, R. Gross 2008-5-23 17433 Lake North Coast Ranges; Above N. Fk. Cache Cr. +/- 1 mi. below spillway of Indian Valley Reservoir. 426 Comment
  CDA32763  Garrya congdonii G. F. Hrusa, R. Gross, S. Smallwood 2010-12-4 18276 Lake North Coast Ranges; East side of North Fk. Cache Creek below Indian Valley Reservoir. 379 Comment
  CHSC98703  Garrya congdonii L. P. Janeway 2007-6-17 9055 Lake Inner North Coast Ranges. Along dirt road 0.3 km northwest of Bartlett Springs Road and Indian Valley Reservoir; about 5.6 air km east of Hough Springs. 500 Comment
  HSC27150  Garrya congdonii J. P. Smith, J. O. Sawyer 1972-4-1 5165 Lake 6.2 mi. N of junction of Hwy. 20 and Walker Ridge Rd. Comment
  JEPS11967  Garrya congdonii Rimo Bacigalupi with G. T. Robbins 1954-6-25 4623 Colusa on road from Indian Valley (Lake County) to Bear Valley (Colusa County) (0.5 mi e of summit (Lake - Colusa County line)) 548 Comment
  UC1043520  Garrya congdonii P. C. Everett and E. K. Balls 1954-10-18 20361 Lake 5 mi se Hough Springs (to Williams) 518 Comment
  UCD163842  Garrya congdonii Craig D. Thomsen 2000-6-1 s.n. Colusa Bear Valley. About 7 miles north of Hwy 20. Comment
  CAS-BOT-BC178549  Garrya flavescens A. Burgard; J. Goldsmith; J. Kalt 1996-3-30 17 Colusa Walker Ridge Rd. 4.1 mi. north of intersection with Indian Reservoir Rd. 57 mi. east of Hwy. 101 on Hwy. 20. 938 Comment
  OBI14152  Garrya veatchii Rimo Bacigalupi, G. T. Robbins 1954-6-25 4623 Colusa 1/2 mi E of summit (Lake-Colusa County line) on rd from Indian Valley (Lake County) to Bear Valley (Colusa County) 549 Comment
  UCD82084  Gayophytum humile Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5611 Lake 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. 821 Comment
  UCD82816  Geranium dissectum Craig Thomsen; G. Harrington 2009-5-12 2890 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 707 Comment
  CDA22922  Geranium molle G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17087 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  CHSC101224  Geranium molle G. F. Hrusa; R. Gross, L. Houser 2008-4-11 17087 Lake Open chaparral slopes with woodland on N faces immediately below Indian Valley Reservoir spillway into North Fork Cache Creek tailrace. 396 Comment
  UCD82541  Gilia capitata Ellen Dean; G. Harrington, C. Thomsen,R. Wilmarth,Chiao-Yi Cheng 2009-5-20 5697 Colusa Walker Ridge. Til Jones Spring area along Walker Ridge Road. 833 Comment
  JEPS94681  Gilia sinistra subsp. pinnatisecta Vernon H. Oswald and Lowell Ahart 1998-7-15 9281 Lake near Barrel Spring (e side of mt., w of Walker Ridge Rd. 0.8 mi s of Bartlett Springs Rd., e side of county); Baldy Mtn. 640 Comment
  JEPS94741  Gilia sinistra subsp. pinnatisecta Vernon H. Oswald and Lowell Ahart 1998-7-15 9281 Lake 0.8 mi s of Bartlett Springs Road (e side of County near Barrel Spring on e side of Baldy Mountain and w of Walker Ridge Road); Baldy Mountain 640 Comment
  HSC66014  Gilia tricolor Teri Bartowski, Shane Feusier, Ruth Takaki, Carol Zimmerer 1980-4-19 9 Lake Coldsprings Campground along access rd. to Indian Valley Dam Comment
  HSC66051  Gilia tricolor C. McDonald, P. Powers, C. Raley, D. Stamp, J. Spitler 1980-4-19 32 Lake Along Walker Ridge Rd. 0.5 mi. N of junction with access road to Indian Valley Dam Comment
  HSC66059  Gilia tricolor Cathie Goldberg, Lynn Kunstman, Lauren Philbrick, Geoff Walsh 1980-4-19 40 Lake Along Walker Ridge Rd., 1 mi. N of its junction with access road to Indian Valley Dam Comment
  HSC66136  Gilia tricolor S. Harris, B. Ferguson, M. Moble, M. Smith 1980-4-19 Colusa Bartlett Springs Rd. Comment
  HSC85785  Gilia tricolor Bruce Delgado, Tim Tilghman, Rob Marheine 1987-4-10 Lake 8 mi. N of Hwy. 20 on Walker Ridge Rd., Blue Oak Campground Comment
  RSA469705  Gilia tricolor Michelle Stevens 1979-4-14 18 Colusa Buck Flat on Walker Ridge Road. 884 Comment
  UCD82484  Gilia tricolor Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5671 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
  UCD81880  Grindelia camporum Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5760 Lake Walker Ridge. Picnic area near Cold Spring. 912 Comment
  JEPS113894  Grindelia hirsutula L. P. Janeway 2007-6-17 9058 Colusa Inner North Coast Ranges; Along Bartlett Springs Road between Bear Valley and Walker Ridge Road. 530 Comment
  UCD82539  Grindelia hirsutula Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5692 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
  CHSC97317  Grindelia hirsutula var. davyi L. P. Janeway 2007-6-17 9058 Colusa Inner North Coast Ranges. Along Bartlett Springs Road between Bear Valley and Walker Ridge Road. 530 Comment
  CAS-BOT-BC230059  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
  CAS-BOT-BC302201  Harmonia hallii G. L. Stebbins 1971-6-6 8013 Colusa South end of Walker Ridge, near Clyde Mine 914 Comment
  CHSC70967  Harmonia hallii Vernon Oswald; Lowell Ahart 1998-5-7 9012 Colusa Bartlett Springs Rd. 2.8 mi west of Bear Valley Rd., 0.1 mi east of Sawtelle Valley and Grapevine Flat roads. On roadside banks. 633 Comment
  JEPS117118  Harmonia hallii Peter Warner 2010-5-16 155 Colusa Walker Ridge Rd., ~ 8.3 km N of jct. with Hwy. 20; ~ 1 km N of jct. w/ Indian Valley Reservoir Rd., at road-cut, both sides and adjacent slopes Comment
  JEPS123183  Harmonia hallii David Gowen 2009-5-6 1020 Lake Above Walker Ridge Road near summit of peak south of Baldy Mountain Comment
  JEPS94706  Harmonia hallii Vernon Oswald and Lowell Ahart 1998-5-7 9012 Colusa Bartlett Springs Road 2.8 mi w of Bear Valley Road (0.1 mi e of Sawtelle Vallyy and Grapevine Flat Roads); Bartlett Springs Road 633 Comment
  JEPS94768  Harmonia hallii Vernon Oswald and Lowell Ahart 1998-5-7 9012 Colusa Bartlett Springs Road 2.8 mi w of Bear Valley Road (0.1 mi e of Sawtelle Valley and Grapevine Flat Roads); Bartlett Springs Road 633 Comment
  JEPS96685  Harmonia hallii Dean W. Taylor 1998-6-23 16703 Colusa Walker Ridge, along BLM access road 929 Comment
  UC1731328  Harmonia hallii Dean W. Taylor 1998-6-23 16703 Colusa Walker Ridge North Coast Ranges (along access road) 929 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
  UCD163348  Harmonia hallii Craig D. Thomsen 2000-5-11 2341 Lake Walker Ridge. 3 miles southwest of Windtun Campground turnoff, Til Jones Spring area. 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
  UCD81863  Hastingsia alba Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5746 Lake Walker Ridge. Picnic area near Cold Spring. 912 Comment
  UCR257980  Hastingsia alba Ellen Dean, Kate F. Mawdsley, Gordon Harrington, R. Wilmarth, Barry Rice, E. Salvia 2009-5-27 5746 Lake North Coast Range, Walker Ridge, picnic area near Cold Spring 913 Comment
  UCD82440  Helenium Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5665 a 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
  UCD83665  Helenium Craig Thomsen; G. Harrington 2009-5-12 2859 b Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 707 Comment
  CHSC106249  Helenium bigelovii B. Castro; L. P. Janeway 2001-6-3 1258 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. 882 Comment
  SD8842  Helenium bigelovii unknown 1882-6-13 Lake Indian Valley Comment
Read comments
Dec 14 2014
  UCD81866  Helenium bigelovii Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5749 Lake Walker Ridge. Picnic area near Cold Spring. 912 Comment
  JEPS93792  Helianthus bolanderi Vernon H. Oswald and Lowell Ahart 1998-7-15 9287 Lake 0.8 mi s of Bartlett Springs Road (e side of county near Barrel Spring on e side of Baldy Mountain and w of Walker Ridge Road); Baldy Mountain 640 Comment
  UC924977  Helianthus bolanderi Annetta Carter 1951-8-26 3079 Colusa Southwest of Leesville (hills at the w side of Bear Valley); North Coast Ranges, Bear Valley 450 Comment
  CHSC71417  Helianthus exilis Vernon H. Oswald; Lowell Ahart 1998-7-15 9287 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Bartlett Springs Rd. 640 Comment
  UCD132785  Helianthus exilis Vernon H. Oswald; Lowell Ahart 1998-7-15 9287 Lake east side of county near Barrel Spring on the east side of Baldy Mountain and west of Walker Ridge Road 0.8 mile south of Bartlett Springs Road. 640 Comment
  UCD82509  Hemizonia Craig Thomsen; G. Harrington 2009-5-12 2867 b Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 710 Comment
  UC195406  Hemizonia congesta subsp. clevelandii A. A. Heller 1916-6-6 12358 Colusa 3 mi w Leesville (on the grade); Coast Range 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
  UCD82492  Hemizonia congesta subsp. luzulifolia Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5680 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
  HSC27283  Hesperocyparis macnabiana J. P. Smith, J. O. Sawyer 1972-4-1 5170 Lake 7.2 mi. N of junction of Hwy. 20 and and Walker Ridge Rd. Comment
  HSC44446  Hesperocyparis macnabiana R. York 1978-4-23 150 Lake Barrel Springs Campground. 701 Comment
  HSC66055  Hesperocyparis macnabiana D. Boyd, M. Eichelberger, Tim Messick, T. Ranker 1980-4-19 40 Lake Along Walker Ridge Rd., 1 mi. N of junction with access to Indian Valley Dam Comment
  HSC69912  Hesperocyparis macnabiana Thomas W. Nelson, Jane P. Nelson 1978-4-2 3875 Lake Along Walker Ridge Rd., 6 mi. N of junction with Hwy. 20 Comment
  SBBG118074  Hesperocyparis macnabiana C. Bornstein, E. Collins, R. Lutsko 2004-6-18 Lake Walker Ridge Rd, ca. 0.75 mi S of jct with Bartlett Springs Rd 745 Comment
  UCD81735  Hesperocyparis macnabiana Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5737 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
  UCSC010368  Hesperocyparis macnabiana Dylan M. Neubauer, Tim Forsell 2016-3-30 592 Colusa (NCoRI) Walker Ridge, Bartlett Springs Road, 1.22 air-miles sse Baldy Mountain 899 Comment
  UCD82529  Hesperolinon Craig Thomsen; G. Harrington 2009-5-12 2885 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. East-facing hillslope above (west border) Eaton Springs meadow complex. 710 Comment
  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
  CHSC48598  Hesperolinon californicum Vernon Oswald 1986-5-12 2010 Colusa Brim Rd. (Bartlett Springs Rd.) 2.1 mi w of Bear Valley Rd. Common in a grassy opening on a serpentine slope. 487 Comment
  CHSC71435  Hesperolinon californicum Vernon H. Oswald; Lowell Ahart 1998-7-15 9269 Colusa Bartlett Springs Rd. 1.6 mi west of Bear Valley Rd. 487 Comment
  JEPS122888  Hesperolinon californicum Adam C. Schneider with Will Freyman and Yuri P. Springer 2014-5-20 642 Colusa Along north side of Brim Rd east of Indian Valley Reservoir, near Colusa/Lake Co line. Comment
  UC1212442  Hesperolinon californicum Herbert L. Mason 1946-5-31 12815 Colusa 1 mi e Lake County line (Bartlett Springs to Williams road, western Colusa County); Inner North Coast Ranges Comment
  UC867722  Hesperolinon californicum A. A. Heller 1916-6-6 12352 Colusa on the grade about 3 mi w Leesville; Coast Range Comment
  CDA21516  Hesperolinon disjunctum G. F. Hrusa, R. Gross 2008-5-23 17449 Lake North Coast Ranges; Above N. Fk. Cache Cr. +/- 1/2 mi. below spillway of Indian Valley Reservoir. 423 Comment
  CHSC106245  Hesperolinon disjunctum B. Castro; L. P. Janeway 2001-6-3 1258 A Colusa Inner North Coast Ranges. Spring at Grapevine flat, on top of Walker Ridge about 0.5 mi E of Baldy Mountain. East-facing slope/bench with large springy/meadowy area. At upper edges of meadow. 883 Comment
  CHSC32920  Hesperolinon disjunctum James P. Smith; John Sawyer 1971-6-6 4732 Lake 0.75 mi. north of Clyde Mine; Walker Ridge Road. Comment
  CHSC71436  Hesperolinon disjunctum Vernon H. Oswald; Lowell Ahart 1998-7-15 9278 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Bartlett Springs Rd. 640 Comment
  CHSC84246  Hesperolinon disjunctum Lowell Ahart 2003-7-14 10408 Lake Along a stream, on the west side of the second causeway going southwest on Bartlett Springs Road, Indian Valley Reservoir. 449 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
  HSC68102  Hesperolinon disjunctum J. P. Smith, J. O. Sawyer 1971-6-6 4732 Lake 0.75 mi. N of Clyde Mine, Walker Ridge Rd. 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
  JEPS32320  Hesperolinon disjunctum W. L. Jepson 1920-5-23 8996 Lake Indian Valley Indian Valley (ne Lake County) Comment
  JEPS94682  Hesperolinon disjunctum Vernon H. Oswald and Lowell Ahart 1998-7-15 9278 Lake e side of mt. 0.8 mi s Bartlett Springs Rd. (near Barrel Spring, w of Walker Ridge Rd., e side of county); Baldy Mtn. 640 Comment
  JEPS94740  Hesperolinon disjunctum Vernon H. Oswald and Lowell Ahart 1998-7-15 9278 Lake e side of county near Barrel Spring (on the e side of Baldy Mountain and w of Walker Ridge Road 0.8 mi s of Bartlett Springs Road); Baldy Mountain 640 Comment
  RSA42331  Hesperolinon disjunctum Lincoln Constance, R. H. Shan 1946-6-2 3073 Lake Bartlett Springs Road, 4.5 miles southwest of Leesville. 549 Comment
  RSA700361  Hesperolinon disjunctum L. P. Janeway 2001-6-6 7128 Colusa Deadshot Spring, about 1.9 km (air) east of Walker Ridge Road. 716 Comment
  UC1212476  Hesperolinon disjunctum Helen K. Sharsmith 1952-6-21 4157 Lake Bartlett Springs-Leesville road at boundary of Lake and Colusa Counties; Inner North Coast Ranges 663 Comment
  UC1212512  Hesperolinon disjunctum Herbert L. Mason 1946-5-31 12813 Colusa one mi e Lake County line (Bartlett Springs to Williams road); Inner North Coast Ranges 609 Comment
  UC735121  Hesperolinon disjunctum Lincoln Constance and Ren Hwa Shan 1946-6-2 3073 Lake Bartlett Springs road 4.5 mi sw Leesville 548 Comment
  UCD82089  Hesperolinon disjunctum Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5616 Lake 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. 821 Comment
  UCD82139  Hesperolinon disjunctum Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5679 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
  UCD84549  Hesperolinon disjunctum Ellen Dean; C. Thomsen, T. Hansen, and windfarm meeting 2010-6-11 6147 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
  CAS-BOT-BC167455  Hesperolinon drymarioides 1884-7-1 s.n. Lake Epperson's Road Comment
  JEPS123215  Hesperolinon drymarioides David Gowen with Dick O'Donnell 2010-7-2 1139 Lake Large scraped area along Walker Ridge Road. Comment
  UCD110423  Hesperolinon drymarioides Daniel Slakey; CNPS volunteers 2011-6-11 8 Lake Walker Ridge. About 9 km N of Hwy. 20 on Walker Ridge Rd. Near small road heading west from Walker Ridge Rd. 807 Comment
  UCD81732  Hesperolinon drymarioides Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5734 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. 864 Comment
  UCD82110  Hesperolinon drymarioides Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5638 Lake 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. 818 Comment
  POM298647  Hesperolinon micranthum Lincoln Constance, R. H. Shan 1946-6-2 s.n. Lake Bartlett Springs Road, 4.5 miles southwest of Leesville. 549 Comment
  UCD83448  Hesperolinon micranthum Craig Thomsen; G. Harrington 2009-5-14 2888 Colusa Colusa County on Walker Ridge: Eaton Springs, about 1 mile east of Walker Ridge Road. 710 Comment
  UCD84523  Heterocodon rariflorum Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6074 Lake Lake County. Walker Ridge. Along Bartlett springs road just west of Walker Ridge Rd intersection. 647 Comment
  UCD84526  Heterocodon rariflorum Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6077 Lake Lake County. Walker Ridge. Along Walker Ridge Road. Barrel Spring. 701 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
  UC2042506  Heteromeles arbutifolia Holly Forbes and Barbara Keller 2011-7-7 Colusa Walker Ridge Rd, 6.1 miles N from its intersection with Hwy 20 Comment
  UCD83759  Heteromeles arbutifolia Ellen Dean; G. Harrington, K. Mawdsley, J. Shepard 2010-5-1 5955 Colusa Colusa County. Walker Ridge. Along Walker Ridge Road, Buck Flat. 875 Comment
  A345013  Holodiscus discolor A. A. Heller 1916-6-6 12362 Unknown Coast Range on the grade about 3 miles west of Leesville Comment
  RSA28813  Holodiscus discolor A. A. Heller 1916-6-6 12362 Colusa Coast Range on the grade 3 miles W of Leesville. Comment
  CAS-BOT-BC152577  Holodiscus discolor var. discolor A. A. Heller 1916-6-6 12362 Colusa Coast Range on the grade about 3 miels west of Leesville 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
  UCD164138  Hordeum brachyantherum Craig Thomsen 1997-4-20 1927 Colusa Bear Valley. About 7 miles north of Hwy 20. Comment
  UCD82472  Hordeum brachyantherum Craig Thomsen; G. Harrington 2009-5-12 2848 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 707 Comment
  CHSC106241  Hordeum brachyantherum subsp. californicum B. Castro; L. P. Janeway 2001-6-3 1260 Colusa Inner North Coast Ranges. 'Til Jones Spring' at headwaters of Freshwater Branch of E. Fork Sulphur 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
  JEPS118603  Hordeum brachyantherum subsp. californicum B. Castro, L. P. Janeway 2001-6-3 1260 Colusa Inner North Coast Ranges. Til Jones Spring at headwaters of Freshwater Branch of E. Fork Sulphur Creek, 0.6 mi E of top of Walker Ridge. Ca 3 air mi W of S end of Bear Valley, and 1.75 air mi SSE of Cold Spring Mtn. Wilbur Springs 7.5' quad. Comment
  JEPS475  Hordeum brachyantherum subsp. californicum W. L. Jepson 1938-6-9 18956 Colusa w slope of mountains between Indian Valley, Lake County and Bear Valley, Colusa County; Indian Valley, Bear Valley 579 Comment
  UCR50005  Hordeum brachyantherum subsp. californicum L. F. LaPre, K. Campbell 1987-6-29 s.n. Lake Inner North Coast Ranges, Barrel Spring Camp, NE of Clear Lake at Colusa Co. line, on Walker Ridge Rd Comment
  CHSC71448  Horkelia californica subsp. dissita Vernon H. Oswald; Lowell Ahart 1998-7-15 9270 Colusa Bartlett Springs Rd. 1.6 mi west of Bear Valley Rd. In a meadow. 487 Comment
  CHSC84229  Horkelia californica subsp. dissita Lowell Ahart 2003-7-14 10398 Lake Near a small stream, at Barrel Spring, about 1 1/2 miles (air) south of Bartlett Springs Road, about 2 miles (air) west of Bear Valley. 396 Comment
  CHSC88588  Horkelia californica subsp. dissita L. P. Janeway; B. Castro 2001-6-3 7100 Colusa Inner North Coast Ranges. Spring at Grapevine Flat, on top of Walker Ridge about 0.8 km east of Baldy Mountain. Meadow. 884 Comment
  RSA700357  Horkelia californica subsp. dissita L. P. Janeway, B. Castro 2001-6-3 7100 Colusa Inner N Coast Ranges, Spring at Grapevine Flat, on top of Walker Ridge 0.8km E of Baldy Mtn. Comment
  SD8451  Horkelia californica var. elata none given 1882-7-1 Lake Indian Valley Comment
  UCD81872  Horkelia californica var. elata Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5753 Lake Walker Ridge. Picnic area near Cold Spring. 912 Comment
  UCD82589  Horkelia californica var. elata Craig D. Thomsen; J. Wiegand, S. Harrison, G. Harrington, A. Fulks 2008-4-22 2734 Colusa Walker Ridge. About 3.2 mi N of Hwy 20, adjacent to abandoned road leading back to Walker Ridge Rd. from 'Oak Cove. 822 Comment
  RSA466277B  Horkelia elata L. F. LaPre, K. Campbell 1987-6-29 s.n. Lake Barrel Springs Camp, NE of Clear Lake at Colusa Co. line, on Walker Pass Road Comment
  UCR50156  Horkelia elata L. F. LaPre, K. Campbell 1987-6-29 s.n. Lake Inner North Coast Ranges, Barrel Spring Camp, NE of Clear Lake at Colusa Co. line, on Walker Ridge Rd Comment
  UCD82460  Hypochaeris glabra Craig Thomsen; G. Harrington 2009-5-12 2838 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 707 Comment
  CHSC115328  Iris macrosiphon Lowell Ahart 2015-4-10 20016 Lake On the north side of Brim Road, about 3 miles west of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. 645 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
  HSC66068  Iris macrosiphon Cathie Goldberg, Lynn Kunstman, Lauren Philbrick, Geoff Walsh 1980-4-19 38 Lake Along Walker Ridge Rd., 0.5 mi. N of junction with access road to Indian Valley Dam Comment
  JEPS124252  Iris macrosiphon Lowell Ahart 2015-4-10 20016 Lake About 3 miles west of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. Comment
  JEPS94211  Iris macrosiphon Vernon Oswald and Lowell Ahart 1998-5-7 9008 Colusa Bartlett Springs Road 2.2 mi w of Bear Valley Road (0.7 mi e of Sawtelle Valley and Grapevine Flat Roads); Bartlett Springs Road 524 Comment
  RSA298331  Iris macrosiphon C. Mcdonald, P. Powers, C. Raley, D. Stamp, J. Spitler 1980-4-19 31 Lake Along Walker Ridge Road, 0.5 miles north of junction with access road to Indian Valley Dam 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
  UCD138770  Iris macrosiphon Teri Bartowski; Shane Feusier, Ruth Takaki, Carol Zimmerer 1980-4-19 27 Lake along Walker Ridge Road, 0.5 mile north of junction with access road to Indian Valley Dam. Comment
  UCD82523  Iris macrosiphon Craig Thomsen; G. Harrington 2009-5-12 2880 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. East- facing hillslope above (west border) Eaton Springs meadow complex. 722 Comment
  UCR37891  Iris macrosiphon K. B. Barrows, C. G. Phillips, L. Cole, S. A. Haultain 1984-4-28 17 Lake Walker Ridge, Indian Valley Access Road, 1.1 mi north of Blue Oak Campground. 854 Comment
  UCD81860  Juglans californica Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5744 Lake Walker Ridge. Picnic area near Cold Spring. 912 Comment
  CHSC78210  Juncus balticus subsp. ater Lowell Ahart 2000-6-2 8435 Lake Bottom of a small wash, about 100 feet northeast of Bartlett Springs road, about 400 yards southwest of the radio tower, about 1/4 mile west of Bartlett Springs Road and Walker Ridge Road, about 2 1/2 miles west of Bear Valley. 609 Comment
  JEPS98432  Juncus balticus subsp. ater Lowell Ahart 2000-6-2 8435 Lake 2 1/2 mi W of Bear Valley (bottom of a small wash, 100 ft NE of Bartlett Springs Rd, 400 yds SW of radio tower, 1/4 mi W of Bartlett Springs Rd and Walker Ridge Rd) 609 Comment
  CHSC114999  Juncus bufonius var. bufonius Lowell Ahart 2015-3-28 20105 Lake About 80 yards north of the south edge of the meadow, Barrel Spring Meadow,about 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. 696 Comment
  CHSC78211  Juncus bufonius var. bufonius Lowell Ahart 2000-6-2 8434 Lake Bottom of a small wash, about 100 feet northeast of Bartlett Springs road, about 400 yards southwest of the radio tower, about 1/4 mile west of Bartlett Springs Road and Walker Ridge Road, about 2 1/2 miles west of Bear Valley. 609 Comment
  JEPS123897  Juncus bufonius var. bufonius Lowell Ahart 2015-4-28 20105 Lake About 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. Comment
  JEPS98457  Juncus bufonius var. bufonius Lowell Ahart 2000-6-2 8434 Lake 2 1/2 mi W of Bear Valley (about 100 ft NE of Bartlett Springs road, 400 yds SW of the radio tower, 1/4 mi W of Bartlett Springs Road and Walker Ridge Road) 609 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
  JEPS93871  Juncus bufonius var. congestus Vernon H. Oswald and Lowell Ahart 1998-7-15 9305 Colusa w side of county on Walker Ridge Road 8.2 mi s of Bartlett Springs Road (6.3 mi n of Highway 20); Walker Ridge Road 792 Comment
  CHSC78213  Juncus oxymeris Lowell Ahart 2000-6-2 8436 Lake Bottom of a small wash, about 100 feet northeast of Bartlett Springs road, about 400 yards southwest of the radio tower, about 1/4 mile west of Bartlett Springs Road and Walker Ridge Road, about 2 1/2 miles west of Bear Valley. 609 Comment
  CHSC84188  Juncus oxymeris Lowell Ahart 2003-7-14 10394 Lake Near a small stream, at Barrel Spring, about 1 1/2 miles (air) south of Bartlett Springs Road, about 2 miles (air) west of Bear Valley. 396 Comment
  JEPS104081  Juncus oxymeris Lowell Ahart 2003-7-14 10394 Lake Near a small stream, at Barrel Spring, ca 1 1/2 mi (air) south of Bartlett Springs Rd, ca 2 mi (air) w of Bear Valley. 396 Comment
  JEPS98302  Juncus oxymeris Lowell Ahart 2000-6-2 8436 Lake 2 1/2 mi W of Bear Valley (bottom of a small wash, 100 ft NE of Bartlett Springs Rd, 400 yds SW of radio tower, 1/4 mi W of Bartlett Springs Rd and Walker Ridge Rd) 609 Comment
  UCD81870  Juncus oxymeris Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5751 Lake Walker Ridge. Picnic area near Cold Spring. 912 Comment
  UCD82125  Juncus patens Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5654 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
  UCD82439  Juncus patens Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5665 Colusa Walker Ridge. Along Walker Ridge Road, ca. 0.5 road mi N of intersection with road to Indian Valley Reservoir. Parking area, undeveloped roads, flats and slopes on W side of road. 869 Comment
  HSC66584  Juniperus californica D. Boyd, M. Eichelberger, Tim Messick, T. Ranker 1980-4-19 12 Lake Coldsprings Campground along access road to Indian Valley Dam Comment
  UCD163315  Juniperus californica Craig D. Thomsen 1997-4-13 1904 Colusa Bear Valley. About 6 miles north of Hwy 20. Vicinity of Trout Creek, north of Deadshot Canyon. Comment
  HSC101454  Juniperus occidentalis var. australis A. Hove, A. Poteet, C. Sanville 1999-3-27 4 Lake Walker Ridge Road, Blue Oak Recreation Area 537 Comment
Read comments
Jul 25 2018
  JEPS10931  Keckiella breviflora var. glabrisepala W. L. Jepson 1920-5-24 9026 Lake hills e Indian Valley (ne Lake County) Comment
  UCD81877  Koeleria macrantha Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5757 Lake Walker Ridge. Picnic area near Cold Spring. 912 Comment
  UCD82476  Lactuca Craig Thomsen; G. Harrington 2009-5-12 2854 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 707 Comment
  CDA26537  Lagophylla minor G. F. Hrusa, R. Gross 2008-5-23 17451 Lake North Coast Ranges; Slope above N. Fk. Cache Cr. +/- 1/2 mi. below spillway of Indian Valley Reservoir. 423 Comment
  CHSC101529  Lagophylla minor G. F. Hrusa; R. Gross 2008-5-23 17451 Lake NE-facing chaparral slope above North Fork Cache Creek +/- 1/2 mile below spillway of Indian Valley Reservoir. 423 Comment
  CHSC70966  Lagophylla minor Vernon Oswald; Lowell Ahart 1998-5-7 8998 Colusa Bartlett Springs Rd. 2.1 mi west of Bear Valley Rd., 0.8 mi east of Sawtelle Valley and Grapevine Flat roads. 524 Comment
  HSC41909  Lagophylla minor M. A. Baker 1977-4-24 215 Lake Barrel Springs Campground. 701 Comment
  HSC42247  Lagophylla minor Rich White 1977-4-24 34 Lake Barrel Springs Campground 701 Comment
  HSC43364  Lagophylla minor Carolyn Sanford 1977-4-24 349 Lake Barrel Springs Campground. 701 Comment
  HSC44623  Lagophylla minor R. York 1978-4-23 149 Lake Barrel Springs Campground. 701 Comment
  HSC45523  Lagophylla minor M. Alcasas 1978-4-23 55 Lake Barrel Springs Campground 701 Comment
  HSC45707  Lagophylla minor Sheila Logan 1978-4-23 102 Lake Barrel Springs Campground 701 Comment
  HSC46060  Lagophylla minor Catherine Chin 1978-4-23 45 Lake Barrel Springs Campground. 701 Comment
  HSC49852  Lagophylla minor J. P. Smith 1978-4-23 9750 Lake Barrel Springs Campgound 701 Comment
  HSC90052  Lagophylla minor Rohmer, Grefsrud, Reed 1990-4-15 53 Lake Indian Valley Reservoir access road, 15 mi. NE of intersection with Walker Ridge Rd. 689 Comment
  JEPS19941  Lagophylla minor R. F. Hoover 1938-6-9 Lake Indian Valley Comment
  JEPS19947  Lagophylla minor W. L. Jepson 1920-5-23 8998 Lake Indian Valley, n Lake Valley Indian Valley Comment
  JEPS94813  Lagophylla minor Vernon Oswald and Lowell Ahart 1998-5-7 8998 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
  POM361459  Lagophylla minor Barbara Kelly 1977-4-24 348 Lake Barrel Springs Campground. 701 Comment
  UC762548  Lagophylla minor R. F. Hoover 1938-6-9 3575 Lake Indian Valley Comment
  UCD82162  Lagophylla minor Ellen Dean; G. Harrington, C. Thomsen,R. Wilmarth,Chiao-Yi Cheng 2009-5-20 5694 Colusa Walker Ridge. Til Jones Spring area along Walker Ridge Road. 833 Comment
  UCD82519  Lagophylla minor Craig Thomsen; G. Harrington 2009-5-12 2876 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 713 Comment
  UCR66480  Lagophylla minor D. L. Goforth 1977-4-24 30 Lake Barrel Springs Campground 701 Comment
  HSC66139  Lagophylla ramosissima D. Boyd, M. Eichelberger, Tim Messick, T. Ranker 1980-4-19 6 Lake Coldsprings Campground, along access road to Indian Valley Dam Comment
  JEPS94648  Lagophylla ramosissima Vernon H. Oswald and Lowell Ahart 1998-7-15 9306 Lake on Walker Ridge Rd. 9.8 mi s Bartlett Springs Rd. (4.6 mi n of Hwy 20, e side of county) 792 Comment
  JEPS94777  Lagophylla ramosissima Vernon H. Oswald and Lowell Ahart 1998-7-15 9306 Lake on Walker Ridge Rd. 9.8 mi s Bartlett Springs Rd. (4.6 mi n of Hwy 20, e side of county) 792 Comment
  SD8630  Lagophylla ramosissima Daniel Cleveland 1882-7-1 Lake Indian Valley Comment
  UCD159332  Lagophylla ramosissima D. S. Park 2010-6-5 116 Colusa Walker ridge, Cold Spring Mt. roadside and adjacent grassland. 760 Comment
  CDA21515  Lamium amplexicaule G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17091 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  HSC66593  Lasthenia californica S. Harris, B. Ferguson, S. Smith 1980-4-19 Lake Coldsprings Campground, along access road to Indian Valley Dam Comment
  HSC67091  Lasthenia californica Debbie Stamp, Joanne Spitler, Cathy Railey, Patty Powers, Cathy Macdonald 1980-4-19 5 Lake Coldsprings Campground along access road to Indian Valley Dam Comment
  HSC60475  Lasthenia glabrata J. P. Smith 1977-4-24 9041 Colusa Along Walker Ridge Rd. above Barrel Springs Campground 701 Comment
  HSC60476  Lasthenia glabrata J. P. Smith 1977-4-24 9042 Lake Barrel Springs Campground 701 Comment
  HSC90414  Lasthenia glabrata C. Wilson, P. Kittleson, M. Hardig 1992-4-11 41 Lake Blue Oak Recreation Site, 6.5 mi. N of Hwy. 20 on Walker Ridge Rd. 488 Comment
  JEPS74813  Lasthenia gracilis L. R. Heckard, T. I. Chuang, and R. Bacigalupi 1975-5-7 4021 Colusa just sw of site old Kowalski ranch ((below upper dam road), sw of Leesville); Upper Indian Valley 396 Comment
  UCD82464  Lasthenia gracilis Craig Thomsen; G. Harrington 2009-5-12 2841 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 707 Comment
  UCR37890  Lasthenia gracilis C. G. Phillips, L. Cole, S. A. Hautain, K. B. Barrows 1984-4-28 22 Lake Walker Ridge, Indian Valley Access Road, 1.1 mi. north of Blue Oak Campground, Wilbur Springs 15' Q. 854 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
  UCD82127  Lathyrus jepsonii var. californicus Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5656 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
  UCD84567  Lathyrus vestitus Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6092 Lake Walker Ridge. Picnic Area near wetland/marsh. 899 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
  HSC95475  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
  HSC95805  Lathyrus vestitus subsp. vestitus A. Skelly, B. Bletcher, G. McCabe 1996-3-30 10 Colusa 1.6 mi. W of Bear Valley Rd. and Brim Rd. on Brim Rd., 14.7 mi. on Walker Ridge Rd. to Brim Rd., 57 mi. E of Hwy. 101 on Hwy. 20, Leesville Comment
  CHSC48511  Lathyrus vestitus var. vestitus Vernon Oswald 1986-5-12 2009 Colusa Brim Rd. (Bartlett Springs Rd.) 2.1 mi w of Bear Valley Rd. 487 Comment
  CHSC33058  Layia septentrionalis James P. Smith Jr. 1977-4-24 9040 Lake Meadow at Barrel Springs Campground. 701 Comment
  HSC60474  Layia septentrionalis J. P. Smith 1977-4-24 9040 Lake Barrel Springs Campground 701 Comment
  HSC86908  Layia septentrionalis Terry Hines, Ellen Purcell, N. Williams 1988-4-16 46 Lake 11.6 mi. off Hwy. 20 on Walker Ridge Rd. 1067 Comment
  CHSC106232  Lepidium latifolium B. Castro; L. P. Janeway 2001-6-3 1255 Colusa Inner North Coast Ranges. Spring at Grapevine Flat, on top of Walker Ridge about 0.5 mi E of Baldy Mountain. Small strip of this species along old roadbed at head of the springs. 883 Comment
  HSC48461  Lepidium latipes J. P. Smith 1978-4-23 9754 Lake Barrel Springs Campgound 701 Comment
  CHSC114991  Lepidium latipes var. latipes Lowell Ahart 2015-4-28 20106 Lake Barrel Spring Meadow, about 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road about 18 miles (air) west of Williams. 696 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
  HSC89701  Leptosiphon ciliatus Eric German, Klara Varga, Michele Cardinaux 1989-4-15 26 Lake Blue Oak Campground, 7.7 mi. N of Hwy. 20 152 Comment
  CAS-BOT-BC226707  Leptosiphon latisectus Brad Kerstetter; Roxanne Jackson; Jeff Cox 1995-5-6 027 Colusa 5.7 miles from Blue Oak Campground, North on Walker Ridge Road 853 Comment
  HSC31586  Leptosiphon latisectus Thomas E. Higley 1974-5-4 74 Lake 1/4 mi. S of Colds Springs Mtn. 1159 Comment
  HSC41863  Leptosiphon latisectus K. Irwin 1977-4-24 301 Colusa Along Walker Ridge Rd. above Barrel Springs Campground 701 Comment
  HSC45510  Leptosiphon latisectus M. Alcasas 1978-4-23 57 Lake Barrel Springs Campground. 701 Comment
  HSC46065  Leptosiphon latisectus Catherine Chin 1978-4-23 36 Lake Barrel Springs Campground 701 Comment
  HSC66047  Leptosiphon latisectus Teri Bartowski, Shane Feusier, Ruth Takaki, Carol Zimmerer 1980-4-19 35 Lake Along Walker Ridge Rd., 3.7 mi. N of junction with access road to Indian Valley Dam Comment
  HSC84492  Leptosiphon latisectus Sandy Floyd, Tom Munton, T'ai Roulston 1987-4-11 87 Lake Barrel Spring's Camp Rd., Barrel Springs Camp Comment
  HSC89712  Leptosiphon latisectus Eric German, Klara Varga, Michele Cardinaux 1989-4-15 33 Lake Lake/Colusa Co. line, 7 mi. S of Brim Rd. on Walker Ridge Rd. 915 Comment
  JEPS123230  Leptosiphon latisectus David Gowen 2010-6-14 1128 Colusa Serpentine road bank along ridgetop of Walker Ridge Road Comment
  UCD118846  Leptosiphon latisectus G. L. Stebbins 1983-5-15 s.n. Lake summit of Walker Ridge. Comment
  CHSC70992  Leptosiphon parviflorus Vernon Oswald; Lowell Ahart 1998-5-7 9006 .1 Colusa Bartlett Springs Rd. 2.1 mi west of Bear Valley Rd., 0.8 mi east of Sawtelle Valley and Grapevine Flat roads. 524 Comment
  HSC31712  Leptosiphon parviflorus Teresa Prendusi 1974-5-4 62 Lake 1.5 mi. from jct. to Indian Valley on Walker Ridge 1098 Comment
  HSC44443  Leptosiphon parviflorus R. York 1978-4-23 146 Lake Barrel Springs Campground. 701 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
  UCD84527  Leptosiphon parviflorus Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6078 Lake Lake County. Walker Ridge. Along Walker Ridge Road. Barrel Spring. 701 Comment
  UCD84634  Leptosiphon parviflorus Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6109 Lake Walker Ridge. Along Bartlett springs road just west of Walker Ridge Rd intersection. Meadow on south side of road. 647 Comment
  UC1563897  Lessingia micradenia var. glabrata Barbara Ertter with Elizabeth Neese, Laura Fujii, and Dawn Espindola 1989-10-21 8868 Colusa Brim Road sw Leesville (to Indian Valley Reservoir) 609 Comment
Read comments
Feb 20 2012
  SD132027  Lessingia nemaclada Barbara Ertter, Neese,Fujii,Espindola 1989-10-21 8868 Colusa Brim Road, southwest of Leesville to Indian Valley Reservoir 609 Comment
  CHSC88557  Lessingia ramulosa L. P. Janeway 2001-6-6 7126 Colusa Inner North Coast Ranges. Deadshot Spring; about 1.9 km (air) east of Walker Ridge Road. 716 Comment
  HSC25616  Lessingia ramulosa J. P. Smith, J. O. Sawyer 1971-6-6 4727 Lake 0.75 mi. N of Clyde Mine, Walker Ridge Rd. Comment
  JEPS119395  Lessingia ramulosa J. Greenhouse with H. Bartosh, J. Game. A. Larsen 2012-6-3 5146 Lake Walker Ridge, Bartlett Springs Rd. Comment
  JEPS11965  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
  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
  JEPS94654  Lessingia ramulosa Vernon H. Oswald and Lowell Ahart 1998-7-15 9276 Colusa on Sawtelle Valley Rd. 0.4 mi n Bartlett Springs Rd. (w side of county) 670 Comment
  JEPS94888  Lessingia ramulosa Vernon H. Oswald and Lowell Ahart 1998-7-15 9276 Colusa w side of county on Sawtelle Valley Road 0.4 mi n of Bartlett Springs Road; Sawtelle Valley Road 670 Comment
  RSA700360  Lessingia ramulosa L. P. Janeway 2001-6-6 7126 Colusa Deadshot Spring, about 1.9 km (air) east of Walker Ridge Road. 716 Comment
  UC2014145  Lessingia ramulosa Ellen Dean, C. Thomsen, T. Hansen, windfarm meeting 2010-6-11 6145 Colusa Colusa County. Walker Ridge. Along Walker Ridge Road, N of turnoff to Indian Valley Reservoir but S of Til Jones Spring. Many old undeveloped roads here. 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
  UCD84559  Lessingia ramulosa Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6084 Colusa Walker Ridge. Along Walker Ridge Road, N of turnoff to Indian Valley Reservoir but S of Til Jones Springs. Many old undeveloped roads here. 817 Comment
  HSC27155  Lewisia rediviva J. P. Smith, J. O. Sawyer 1972-4-1 5158 Lake 6.2 mi. N of junction of Hwy. 20 and Walker Ridge Rd. Comment
  HSC31308  Lewisia rediviva Carter Schleicher 1974-5-4 25 Colusa 0.75 mi. from T junction of Walker Ridge Rd. and Indian Valley, near Clyde Mine 854 Comment
  HSC63081  Lewisia rediviva David Wheeler 1979-4-14 62 Colusa Buck Flat, Walker Ridge, on the way to Barrel Springs 884 Comment
  HSC66061  Lewisia rediviva Cathie Goldberg, Lynn Kunstman, Lauren Philbrick, Geoff Walsh 1980-4-19 46 Lake Along Walker Ridge Rd., 1 mi. N of jct. with access road to Indian Valley Dam Comment
  UC1053469  Lewisia rediviva Rimo Bacigalupi, Arthur Holmgren 1950-4-26 3189 Lake between Bear Valley and Indian Valley (first summit on Bartlett Rd.); Colusa-Lake County line Comment
  UCD81857  Lewisia rediviva Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5741 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
  UCR37939  Lewisia rediviva Brian Kearney, Mike Malamus, P. Williams 1984-4-28 70 Lake 1.1 mi north of Blue Oak Campground on Indian Valley Access Rd. 854 Comment
  UCD164136  Leymus triticoides Craig Thomsen 1998-6-12 1940 Colusa Bear Valley. About 7 miles north of Hwy 20. Comment
  UCD82495  Linanthus Craig Thomsen; G. Harrington 2009-5-12 2845 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 707 Comment
  JEPS58274  Linanthus bolanderi M. S. Hazell 1937-5-23 Lake Indian Valley, ne Lake County Indian Valley Comment
  JEPS58327  Linanthus ciliatus M. S. Hazell 1937-5-23 Lake Indian Valley, on e side of lake, ne Lake County Indian Valley Comment
  UCR37941  Linanthus ciliatus Brian Kearney, Mike Malamus, P. Williams 1984-4-28 75 Lake Blue Oak Campground on Indian Access Road 854 Comment
  CDA11397  Linanthus parviflorus G. F. Hrusa, K. van Katwyk 1995-4-22 12117 Lake Inner North Coast Ranges; along summit of Bartlett Springs Road at intersection with Walker Ridge Rd. Comment
  JEPS74814  Linanthus parviflorus L. R. Heckard, T. I. Chuang and R. Bacigalupi 1975-5-7 4022 Colusa sw of Leesville (just sw of site of old Kowalski ranch (below upper dam road), Upper Indian Valley); Upper Indian Valley 396 Comment
  JEPS94194  Linanthus parviflorus Vernon Oswald and Lowell Ahart 1998-5-7 9006 .1 Colusa Bartlett Springs Rd. 2.1 mi. w. of Bear Valley Rd. and 0.8 m,i. e. of Sawtelle Valley & Grapevine Flat rds. 524 Comment
  UCD83812  Linanthus parviflorus Ellen Dean; G. Harrington, K. Mawdsley, J. Shepard 2010-5-1 5959 Colusa Walker Ridge, along Walker Road, just N of main turnoff to Barrel Springs. 712 Comment
  UCD83820  Linanthus parviflorus Ellen Dean; G. Harrington, K. Mawdsley, J. Shepard 2010-5-1 5967 Colusa Walker Ridge on border of Lake and Colusa Counties, just E of Barrel Springs area along Walker Ridge Rd. 721 Comment
  UCR138661  Linanthus parviflorus B. Ellyson, J. Hooke, D. Newman 1996-3-30 10 Lake Benmore Canyon. 1.4 mi west of Walker Ridge Road on Indian Reservoir Road; 57 mi east of Hwy 101 on Hwy 20 Comment
  HSC66654  Lithophragma affine Cathie Goldberg, Lauren Philbrick, Lynn Kunstman, Geoff Walsh 1980-4-19 6 Lake Coldsprings Campground, along access road to Indian Valley Dam. Comment
  HSC66594  Lithophragma heterophyllum S. Harris, B. Ferguson, S. Smith 1980-4-19 Lake Coldsprings Campground, along access road to Indian Valley Dam Comment
  UCD159333  Logfia filaginoides D. S. Park 2010-6-5 117 Colusa Walker ridge, Cold Spring Mt. roadside and adjacent grassland. 760 Comment
  UCD82094  Logfia gallica Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5621 Lake 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. 821 Comment
  CDA24963  Lomatium californicum G. F. Hrusa, R. Gross 2008-5-23 17420 Lake North Coast Ranges; N-facing slope above N. Fk. Cache Cr. +/- 1 mi. below spillway of Indian Valley Reservoir. 408 Comment
  CDA26551  Lomatium californicum G. F. Hrusa, R. Gross 2008-5-23 17419 Lake North Coast Ranges; N-facing slope above N. Fk. Cache Cr. +/- 1 mi. below spillway of Indian Valley Reservoir. 408 Comment
  CHSC101227  Lomatium californicum G. F. Hrusa; R. Gross 2008-5-23 17420 Lake N-facing slope above North Fork Cache Creek +/- 1mile below spillway of Indian Valley Reservoir. Colony on steep open rocks on steep slope above tailrace. 408 Comment
  UCD82548  Lomatium californicum Ellen Dean; G. Harrington, C. Thomsen,R. Wilmarth,Chiao-Yi Cheng 2009-5-20 5703 Colusa Walker Ridge. Along Walker Ridge just S of turn-off to picnic area near Cold Spring. 1007 Comment
  CDA11395  Lomatium ciliolatum var. hooveri G. F. Hrusa, K. van Katwyk 1995-4-22 12115 Lake Inner North Coast Ranges; Bartlett Springs road at intersection with Walker Ridge Rd. Comment
  GH424346  Lomatium ciliolatum var. hooveri L. Constance & R. H. Shan 1946-6-2 3076 Unknown Bartlett Springs road 4.5 miles southwest of Leesville 548 Comment
  HSC21552  Lomatium ciliolatum var. hooveri Lincoln Constance, Ren Hwa Shan 1946-6-2 3076 Lake Bartlett Springs Road, 4.5 miles southwest of Leesville 549 Comment
  HSC25618  Lomatium ciliolatum var. hooveri J. P. Smith, J. O. Sawyer 1971-6-6 4730 Lake 0.75 mi. N of Clyde Mine, Walker Ridge Rd. Comment
  HSC27159  Lomatium ciliolatum var. hooveri J. P. Smith, J. O. Sawyer 1972-4-1 5156 Lake 6.2 mi. N of junction of Hwy. 20 and Walker Ridge Rd. Comment
  HSC41910  Lomatium ciliolatum var. hooveri M. A. Baker 1977-4-24 216 Lake Barrel Springs Campground. 701 Comment
  HSC44119  Lomatium ciliolatum var. hooveri Barbara Kelly 1977-4-24 346 Lake Barrel Springs Campground 701 Comment
  HSC66065  Lomatium ciliolatum var. hooveri Teri Bartowski, Shane Feusier, Ruth Takaki, Carol Zimmerer 1980-4-19 26 Lake Along Walker Ridge Rd. .5 mi. N of jct. with access Rd. to Indian Valley Dam. Comment
  HSC67089  Lomatium ciliolatum var. hooveri Cathie Goldberg, Lynn Kunstman, Lauren Philbrick, Geoff Walsh 1980-4-19 37 Lake Along Walker Ridge Road, 0.5 mi. N of junction with access road to Indian Valley Dam Comment
  HSC69920  Lomatium ciliolatum var. hooveri Thomas W. Nelson, Jane P. Nelson 1978-4-2 3867 Lake Along Walker Ridge Rd., 6 mi. N of junction with Hwy. 20 Comment
  UCR139083  Lomatium ciliolatum var. hooveri A. Burgard, J. Goldsmith, J. Kalt 1996-3-30 23 Colusa Brim Road 9.4 mi north of Walker Ridge Road. 57 mi east of Hwy 101 on Hwy 20 777 Comment
  CDA22927  Lomatium dasycarpum subsp. dasycarpum G. F. Hrusa, R. Gross 2008-5-23 17423 Lake North Coast Ranges; N-facing slope above N. Fk. Cache Cr. +/- 1 mi. below spillway of Indian Valley Reservoir. 408 Comment
  CDA24965  Lomatium dasycarpum subsp. dasycarpum G. F. Hrusa, R. Gross 2008-5-23 17423 a Lake North Coast Ranges; N-facing slope above N. Fk. Cache Cr. +/- 1 mi. below spillway of Indian Valley Reservoir. 408 Comment
  JEPS17140  Lomatium dasycarpum subsp. dasycarpum W. L. Jepson 1920-5-23 8990 Lake Indian Valley n.e. Lake Co., Indian Valley Comment
  CHSC42601  Lomatium hooveri Vernon Oswald 1986-5-12 2013 Lake Brim Rd. (Bartlett Springs Rd.) at the jct. of the road to Barrel Spring. 640 Comment
  CHSC42602  Lomatium hooveri Vernon Oswald 1986-5-12 2005 Colusa Brim Rd. (Bartlett Springs Rd.) 1.5 mi w of Bear Valley Rd. 441 Comment
  JEPS15381  Lomatium hooveri Rimo Bacigalupi with G. L. Stebbins, Calvin McMillan and Peter Kamb 1950-4-16 3117 Lake summit of grade from Bear Valley (Colusa Co.) to Indian Valley (Lake Co.); Inner N. Coast Ranges, Lake-Colusa Co. Line 663 Comment
  LA202889  Lomatium hooveri Lincoln Constance; Ren Hwa. Shan 1946-6-2 3076 Lake Bartlett Springs road 4.5 mi. SW of Leesville 548 Comment
  RSA396711  Lomatium hooveri Michelle Stevens 1979-4-14 15 Colusa Buck Flat on Walker Ridge Road 884 Comment
  UC1049547  Lomatium hooveri Rimo Bacigalupi 1950-4-16 3117 Colusa Bartlett Mt. Road, base of grade just W of Bear Valley, near Colusa-Lake County line 426 Comment
  UC735129  Lomatium hooveri Lincoln Constance and Ren Hwa Shan 1946-6-2 3076 Lake 4.5 mi. s.w. Leesville (Barglett Springs rd.) 548 Comment
  UCD162978  Lomatium hooveri Jack Major 1963-5-4 s.n. Colusa West of Bear Valley on Bartlett Springs road. (Exact location unknown. Coordinates estimated by label maker.) 609 Comment
  UCD163312  Lomatium hooveri Craig D. Thomsen 1997-4-18 1901 Colusa Bear Valley. About 6 miles north of Hwy 20. Vicinity of Trout Creek, north of Deadshot Canyon. Comment
  UCD74305  Lomatium hooveri G. L. Stebbins 1971-6-6 s.n. Lake Walker Ridge, north of Clyde Mine. 914 Comment
  UCSC010456  Lomatium hooveri Dylan M. Neubauer, Tim Forsell 2016-3-31 601 Colusa (NCoRI) Walker Ridge, Walker Ridge Road, 1.96 air-miles sse Cold Spring Mountain 820 Comment
  CAS-BOT-BC230056  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
  CDA11394  Lomatium macrocarpum G. F. Hrusa, K. van Katwyk 1995-4-22 12114 Lake Inner North Coast Ranges; along Bartlett Springs road approx. 1/2 m. W of intersection with Walker Ridge Rd. Comment
  CDA21518  Lomatium macrocarpum G. F. Hrusa, R. Gross 2008-5-23 17448 Lake North Coast Ranges; Above N. Fk. Cache Cr. +/- 1/2 mi. below spillway of Indian Valley Reservoir. 417 Comment
  CDA21531  Lomatium macrocarpum G. F. Hrusa, R. Gross 2008-5-23 17447 Lake North Coast Ranges; N. Fk. Cache Cr. +/- 1/2 mi. below spillway of Indian Valley Reservoir. 417 Comment
  CHSC101236  Lomatium macrocarpum G. F. Hrusa; R. Gross 2008-5-23 17447 Lake NW facing chaparral slope above N. Fork Cache Creek +/- 1/2 mile below spillway of Indian Valley Reservoir. 417 Comment
  HSC25613  Lomatium macrocarpum J. P. Smith, J. O. Sawyer 1971-6-6 4725 Lake 0.75 mi. N of Clyde Mine, Walker Ridge Rd. Comment
  HSC45704  Lomatium macrocarpum Sheila Logan 1978-4-23 107 Lake Barrel Springs Campground 701 Comment
  HSC67104  Lomatium macrocarpum Teri Bartkowski, Shane Feusier, Ruth Takaki, Carol Zimmerer 1980-4-19 5 Lake Coldsprings Campground, along access road to Indian Valley Dam. 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
  HSC66651  Lomatium utriculatum Cathie Goldberg, Lauren Philbrick, Lynn Kunstman, Geoff Walsh 1980-4-19 Lake Coldsprings Campground, along access road to Indian Valley Dam. Comment
  JEPS101802  Lotus grandiflorus var. grandiflorus Dean W. Taylor 1998-6-23 16705 Colusa Walker Ridge; ; Walker Ridge, along BLM access road 929 Comment
  RSA245245  Lotus grandiflorus var. grandiflorus J. P. Smith 1971-6-6 4718 Lake 0.75 mi. north of Clyde Mine; Walker Ridge Road Comment
  CDA22934  Lotus humistratus G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17100 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  HSC41904  Lotus humistratus M. A. Baker 1977-4-24 207 Lake Barrel Springs Campground. 701 Comment
  HSC66662  Lotus humistratus D. Boyd, M. Eichelberger, Tim Messick, T. Ranker 1980-4-19 4 Lake Coldsprings Campground, along access road to Indian Valley Dam Comment
  UCR138666  Lotus humistratus M. Brooks, Julie Evens, H. Johnson 1997-3-29 8 Colusa Brim Road, 1.6 mi east of Brim Road/ Walker Ridge Road intersection 457 Comment
  UCR139079  Lotus humistratus D. Haskamp, E. Sonnenblick, M. Taft 1995-4-1 17 Lake Blue Oak campground on Walker Ridge Road. Riparian area of Benmore Canyon Creek approximately 200 m east of campsites 537 Comment
  HSC37638  Lupinus albifrons John Rehling, Robert M. Specht 1976-3-26 168 Lake 8.3 mi. N on Barlett Springs Rd. from jct. with Hwy. 20 Comment
  HSC90520  Lupinus albifrons Pamela Grefsrud, Marty Reed, Eileen Rohmer 1990-4-14 47 Lake Blue Oak Campground, Indian Valley Reservoir Access Rd. 2.5 mi. NE of intersection Walker Ridge Rd. 534 Comment
  UCD163846  Lupinus albifrons Craig D. Thomsen 2000-6-1 s.n. Colusa Bear Valley. About 7 miles north of Hwy 20. Comment
  UCD82547  Lupinus albifrons Ellen Dean; G. Harrington, C. Thomsen,R. Wilmarth,Chiao-Yi Cheng 2009-5-20 5702 Colusa Walker Ridge. Along Walker Ridge just S of turn-off to picnic area near Cold Spring. 1007 Comment
  CDA22945  Lupinus albifrons var. albifrons G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17108 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  HSC89729  Lupinus albifrons var. albifrons William E. Avery, Mathew Henry Bergvall-Mensor, Steve Wilson 1989-4-15 Lake Lake/Colusa Co. line. 8 mi. off Brim Rd. on Walker Ridge. 915 Comment
  CAS-BOT-BC196036  Lupinus albifrons var. collinus A. Burgard; J. Goldsmith; J. Kalt 1996-5-4 78 Colusa 2.4 miles west of Bear Valley Rd. 12.4 miles on Walker Ridge Rd. from Hwy 20 to Brim Rd. 57 miles east of Hwy. 101 on Hwy. 20 524 Comment
  CHSC115207  Lupinus albifrons var. collinus Lowell Ahart 2015-4-28 20093 Lake East of a small meadow, about 150 yards west of a Barrel Spring Meadow, about a 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. 696 Comment
  HSC86903  Lupinus albifrons var. collinus Terry Hines, Ellen Purcell, N. Williams 1988-4-16 51 Lake 15.5 mi. off Hwy 20 on Walker Ridge Rd. 915 Comment
  JEPS123917  Lupinus albifrons var. collinus Lowell Ahart 2015-4-28 20093 Lake About 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. Comment
  UCD83747  Lupinus albifrons var. collinus Ellen Dean; G. Harrington, K. Mawdsley, J. Shepard 2010-5-1 5945 a Colusa Walker Ridge. Along Walker Ridge Road at intersection with road to Eaton Springs. Roadside, on E side of road. 927 Comment
  UCD83748  Lupinus albifrons var. collinus Ellen Dean; G. Harrington, K. Mawdsley, J. Shepard 2010-5-1 5945 b Colusa Walker Ridge. Along Walker Ridge Road at intersection with road to Eaton Springs. Roadside, on E side of road. 927 Comment
  UCR224884  Lupinus albifrons var. collinus Ellen Dean, Gordon Harrington, Kate F. Mawdsley, Jean V. Shepard 2010-5-1 5945 A Colusa Walker Ridge, along Walker Ridge Road at intersection with road to Eaton Springs, east side of road 927 Comment
  RSA10748  Lupinus albifrons var. eminens Carl B. Wolf 1928-5-7 2077 Lake Houghs Mineral Springs on the road to Williams. 595 Comment
  HSC67105  Lupinus bicolor Teri Bartkowski, Shane Feusier, Ruth Takaki, Carol Zimmerer 1980-4-19 6 Lake Coldsprings Campground, along access road to Indian Valley Dam. Comment
  HSC90056  Lupinus bicolor Rohmer, Reed, Grefsrud 1990-4-14 31 Lake Blue Oak Campground, Indian Valley Reservoir Access Rd., 2.5 mi. NE of intersection with Walker Ridge Rd. 534 Comment
  HSC91343  Lupinus bicolor Eric German, Klara Varga, Michele Cardinaux 1989-4-15 29 Lake Blue Oak Campground, 7.7 mi. N of Hwy. 20 152 Comment
  RSA299452  Lupinus bicolor Teri Bartowski, Shane Feusier, Ruth Takaki, Carol Zimmerer 1980-4-19 6 Lake Coldsprings Campground, along access road to Indian Valley Dam. Comment
  UCD83718  Lupinus bicolor Joseph Schlottman; with PLB 102 class 2010-5-2 4 Colusa East slope of Walker Ridge. Eaton Springs. Adjacent to main creek. 710 Comment
  HSC66641  Lupinus densiflorus var. aureus Cathie Goldberg, Lynn Kunstman, Geoff Walsh, Lauren Philbrick 1980-4-19 22 Lake Coldsprings Campground, along access road to Indian Valley Dam Comment
  HSC86904  Lupinus densiflorus var. aureus Terry Hines, Ellen Purcell, N. Williams 1988-4-16 29 Lake 6.1 mi. on Walker Ridge Rd., N of Hwy. 20. Across from Blue Oak Campground 732 Comment
  HSC89298  Lupinus densiflorus var. aureus L. Blackford, S. Branch, D. Malm 1988-4-16 42 Lake 6.1 mi. on Walker Ridge Rd. off Hwy. 20 at Blue Oak Campground 732 Comment
  HSC89794  Lupinus densiflorus var. aureus A. Smith, A. Eller, B. Hoffman 1989-4-15 16 Lake Blue Oak Campground, 7.7 mi. N of Hwy. 20 just W of Walker Ridge Rd. 152 Comment
  HSC95455  Lupinus densiflorus var. densiflorus A. Miles, M. Malle, B. Gibbs 1999-5-1 28 Lake Blue Oak Rec. Area; Walker Ridge Rd., 1/4 km N of campground 536 Comment
  CHSC94928  Lupinus latifolius var. columbianus K. Lang; Classmates 2005-4-2 18 Lake Walker Ridge. 1000 Comment
  UCR138732  Lupinus microcarpus var. densiflorus Ryan Stafsnes, Chris Dunn, Darina Roediger 1997-3-29 22 Lake Blue Oak campground, 2.5 mi past intersection of access road and Walker Ridge Rd 274 Comment
  CDA26543  Lupinus nanus G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17108 a Lake North Coast Ranges; immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  HSC86905  Lupinus pachylobus Terry Hines, Ellen Purcell, N. Williams 1988-4-16 30 Lake 6.1 mi. N on Walker Ridge Rd., Blue Oak Campground, W of Rd. 732 Comment
  HSC89695  Lupinus polycarpus William E. Avery, Mathew Henry Bergvall-Mensor, Steve Wilson 1989-4-15 Lake Lake/Colusa Co. line, 8 mi. S of Brim Rd. on Walker Ridge 915 Comment
  HSC89706  Lupinus polycarpus Eric German, Klara Varga, Michele Cardinaux 1989-4-15 27 Lake Blue Oak Campground, 7.7 mi. N of Hwy. 20 152 Comment
  UCD84583  Madia exigua Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6108 Lake Walker Ridge. Along Bartlett springs road just west of Walker Ridge Rd intersection. Meadow on south side of road. 647 Comment
  CDA8257  Madia hallii Vernon H. Oswald & Lowell Ahart 1998-5-7 9012 Colusa Bartlett Springs Road 2.8 miles west of Bear Valley Road, 0.1 mile east of Sawtelle Valley and Grapevine Flat Roads. Comment
  UCD159852  Madia hallii G. Ledyard Stebbins 1985-4-19 C 503 Colusa South end of Walker Ridge, along Walker Ridge Road, 0.25 miles northeast of its junction with road to Indian Valley Dam. (Note by label-maker: Section 12 is farther than 0.25 miles NE of road to Indian Valley Dam. Georeferenced this record in Section 13). Comment
  UCD110403  Malacothamnus fremontii Daniel Slakey; CNPS volunteers 2011-6-12 1 Lake Walker Ridge. Around small ORV trail that connects to Indian Valley Reservoir Rd. About halfway between Walker Ridge Rd. and Indian Valley Reservoir. 618 Comment
  UCD144681  Malacothamnus fremontii Daniel Slakey; CNPS volunteers 2011-6-12 1 Lake Walker Ridge. Around small ORV trail that connects to Indian Valley Reservoir Rd. About halfway between Walker Ridge Rd. and Indian Valley Reservoir. 618 Comment
  CDA9388  Malacothamnus hallii G. F. Hrusa, R. Gross, G. Holstein 2014-5-14 18594 Lake North Coast Ranges; Silver Spur Ranch. Middle Benmore Canyon 1 1/2 mi. S of spillway at Indian Valley Reservoir. 454 Comment
Read comments
Dec 18 2016
  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
  HSC25722  Malacothrix floccifera J. P. Smith, J. O. Sawyer 1971-6-6 4717 Lake 0.75 mi. N of Clyde Mine, Walker Ridge Rd. Comment
  HSC60469  Malacothrix floccifera J. P. Smith 1977-4-24 9037 Lake Barrel Springs Campground 701 Comment
  JEPS16207  Malacothrix floccifera Rimo Bacigalupi and Arthur Holmgren 1950-4-26 3185 Colusa just w Bear Valley (just w of base of the grade to Indian Valley (Bartlett Mt. Grade)); Inner North Coast Ranges Comment
  RSA245238  Malacothrix floccifera J. P. Smith, John Sawyer 1971-6-6 4717 Lake 0.75 mi. north of Clyde Mine; Walker Ridge Road Comment
  RSA298142  Malacothrix floccifera J. P. Smith 1977-4-24 9037 Lake Barrel Springs Campground 701 Comment
  UC1053472  Malacothrix floccifera Rimo Bacigalupi and Arthur Holmgren 1950-4-26 3185 Colusa just w Bear Valley (just w of base of the grade to Indian Valley (Bartlett Mt. Road)); Inner North Coast Ranges Comment
  UCD82542  Malacothrix floccifera Ellen Dean; G. Harrington, C. Thomsen,R. Wilmarth,Chiao-Yi Cheng 2009-5-20 5698 Colusa Walker Ridge. Til Jones Spring area along Walker Ridge Road. 833 Comment
  JEPS95245  Marah watsonii Steve Edwards 1996-4-26 Colusa Walker Ridge NE of Barrel Springs, on serpentinite scree visible immediately S of Brim Grade, E of Walker Ridge Road and not far below the latter in elevation Comment
  HSC90051  Matricaria discoidea Rohmer, Grefsrud, Reed 1990-4-14 44 Lake Blue Oak Campground, Indian Valley Reservoir Access Road, 2.5 mi. NE of the intersection with Walker Ridge Rd 534 Comment
  CDA22921  Melica californica G. F. Hrusa, R. Gross 2008-5-23 17424 Lake North Coast Ranges; Above N. Fk. Cache Cr. +/- 1 mi. below spillway of Indian Valley Reservoir, above tailrace. 408 Comment
  CHSC101229  Melica californica G. F. Hrusa; R. Gross 2008-5-23 17424 Lake N-facing slope above N. Fork Cache Creek +/- 1 mile below spillway of Indian Valley Reservoir on slopes above tailrace. 408 Comment
  HSC41908  Melica californica M. A. Baker 1977-4-24 213 Lake Barrel Springs Campground. 701 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
  CDA22924  Melica harfordii G. F. Hrusa, R. Gross 2008-5-23 17439 Lake North Coast Ranges; Above N. Fk. Cache Cr. +/- 1/2 mi. below spillway of Indian Valley Reservoir. 408 Comment
  CAS-BOT-BC247101  Melica torreyana Craig D. Thomsen; J. Wiegand; S. Harrison; G. Harrington; A. Fulks 2008-4-22 2732 Colusa Walker Ridge. Eaten Springs, 4 mi N of Hwy 20, ca. 1.5 mi E of Walker Ridge Rd. 609 Comment
  HSC41826  Melica torreyana Rick Cooper 1977-4-24 45 Lake Barrel Springs Campground. 701 Comment
  HSC71638  Melica torreyana J. P. Smith 1978-4-23 9747 Lake Barrel Springs Campground. 701 Comment
  RSA293159  Melica torreyana J. P. Smith 1978-4-23 9747 Lake Barrel Springs Campground. 701 Comment
  UCD82587  Melica torreyana Craig D. Thomsen; J. Wiegand, S. Harrison, G. Harrington, A. Fulks 2008-4-22 2732 Colusa Walker Ridge. Eaton Springs, 4 mi N of Hwy 20, ca. 1.5 mi E of Walker Ridge Rd. 609 Comment
  UCD84546  Melica torreyana Ellen Dean; C. Thomsen, T. Hansen, and windfarm meeting 2010-6-11 6144 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
  UCD82136  Melilotus indicus Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5669 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
  UCD82087  Mentzelia dispersa Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5614 Lake 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. 821 Comment
  RSA15104  Mentzelia laevicaulis Daniel Cleveland 1882-7-1 `S.N. Lake Indian Valley. Comment
  SD7607  Mentzelia laevicaulis Daniel Cleveland Jul 1882 Lake Indian Valley Comment
  UC1053474  Mentzelia micrantha Rimo Bacigalupi, Arthur Holmgren 1950-4-26 3181 Colusa just w Bear Valley (Burned slope just west of base of the grade to Indian Valley(Bartlett Mt. Road)); Inner North Coast Ranges Comment
  UCD82738  Mentzelia micrantha Craig Thomsen; G. Harrington 2009-5-14 2919 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. 822 Comment
  CAS-BOT-BC428805  Micranthes californica Eric B. Peterson; Thomas Ward; Matt Foruria 1995-4-1 29 Lake Blue Oak Campground, about 70m up the canyon from the end of camping area, ~40m uphill from stream on N facing slope. 548 Comment
  CDA21521  Micropus californicus var. californicus G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17094 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  CHSC101220  Micropus californicus var. californicus G. F. Hrusa; R. Gross, L. Houser 2008-4-11 17094 Butte Open, chaparral slopes with woodland on N faces immediately below Indian Valley Reservoir spillway into North Fork Cache Creek tailrace. 396 Comment
  HSC92588  Micropus californicus var. californicus Moulton, Sparks, Wood 1995-5-6 36 Lake Blue Oak Campground 549 Comment
  UCD82822  Micropus californicus var. californicus Craig Thomsen; G. Harrington 2009-5-12 2844 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 707 Comment
  HSC44282  Microseris douglasii Barbara Kelly 1977-4-24 353 Colusa Along Walker Ridge Rd. above Barrel Springs Campground. 701 Comment
  CHSC70968  Microseris douglasii subsp. douglasii Vernon Oswald; Lowell Ahart 1998-5-7 8999 Colusa Bartlett Springs Rd. 2.1 mi west of Bear Valley Rd., 0.8 mi east of Sawtelle Valley and Grapevine Flat roads. 524 Comment
  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
  CHSC101538  Microsteris gracilis G. F. Hrusa; R. Gross, L. Houser 2008-4-11 17117 Lake Open chaparral slopes with woodland on N faces immediately below Indian Valley Reservoir spillway into North Fork Cache Creek tailrace. 396 Comment
  CHSC84234  Mimetanthe pilosa Lowell Ahart 2003-7-14 10405 Lake Along a stream, on the west side of the second causeway going southwest on Bartlett Springs Road, Indian Valley Reservoir. 449 Comment
  UCR138733  Mimulus aurantiacus Ryan Stafsnes, Chris Dunn, Darina Roediger 1997-3-29 24 Lake Blue Oak campground, 2.5 mi past intersection of access road and Walker Ridge Rd 274 Comment
  UCD82625  Mimulus bolanderi Craig Thomsen; G. Harrington 2009-5-12 2895 Colusa Colusa County on Walker Ridge: from spur road about 1/2 mile east of Walker Ridge Road, en route to Eaton Springs. About 200 yds.south off spur road, south-facing hillslope above ravine and spring area. 813 Comment
  UCD82726  Mimulus cardinalis Craig Thomsen; G. Harrington 2009-5-14 2909 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
  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
  CDA41442  Mimulus douglasii S. E. Schoenig 1998-4-24 98 -9 Colusa Barrel Springs, 200 meters west of parking area off Walker Ridge Road, 1 mile south of intersection with Brim Road. Comment
  UCD82134  Mimulus floribundus Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5664 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
  HSC45511  Mimulus guttatus M. Alcasas 1978-4-23 56 Lake Barrel Springs Campground. 701 Comment
  HSC45745  Mimulus guttatus Stephen Plant 1978-4-23 217 Lake Barrel Springs Campground 701 Comment
  HSC66063  Mimulus guttatus C. Macdonald, P. Powers, C. Raley, J. Spitler, D. Stamp 1980-4-19 35 Lake Along Walker Ridge Rd., 1.0 mi. N of junction with access road to Indian Valley Dam. Comment
  JEPS104387  Mimulus guttatus Lowell Ahart 2003-7-14 10396 Lake Near a small stream, at Barrel Spring, ca 1 1/2 mi (air) south of Bartlett Springs Rd, ca 2 mi (air) w of Bear Valley. 396 Comment
  RSA454339  Mimulus guttatus Christopher Knopp 1978-4-23 34 Lake Barrel Springs Campground. 701 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
  UCD82512  Mimulus guttatus Craig Thomsen; G. Harrington 2009-5-12 2870 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 710 Comment
  UCD82521  Mimulus guttatus Craig Thomsen; G. Harrington 2009-5-12 2878 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 713 Comment
  UCR138734  Mimulus kelloggii Ryan Stafsnes, Chris Dunn, Darina Roediger 1997-3-29 25 Lake Blue Oak campground, 2.5 mi past intersection of access road and Walker Ridge Rd 274 Comment
  JEPS123895  Mimulus latidens Lowell Ahart 2015-4-28 20104 Lake About 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. Comment
  RSA0114868  Mimulus latidens Lowell A. Ahart 2015-4-28 20104 Lake About 30 yards north of the south edge of the meadow, Barrel Spring Meadow, about 0.25 mi (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. 697 Comment
  UCD82111  Mimulus latidens Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5639 Lake 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. 818 Comment
  JEPS8154  Mimulus layneae Robert F. Hoover 1938-6-9 3574 Lake Indian Valley Comment
  JEPS8212  Mimulus layneae W. L. Jepson 1920-5-24 9000 Lake Indian Valley Comment
  JEPS93862  Mimulus layneae Vernon H. Oswald and Lowell Ahart 1998-7-15 9291 Lake 0.8 mi s of Bartlett Springs Road (e side of county near Barrel Spring on the e side of Baldy Mountain and w of Walker Ridge Road); Baldy Mountain 640 Comment
  RSA324422  Mimulus layneae Robert F. Hoover 1938-6-9 3574 Lake Indian Valley. Comment
  RSA488803  Mimulus layneae James L. Reveal 1988-6-2 6988 Lake Barrel Springs area just west of the Walker Ridge Road, 1 mile south of the Bartlett Springs Road and about 15 miles north of Hwy 20. 762 Comment
  JEPS104384  Mimulus microphyllus Lowell Ahart 2003-7-14 10404 Lake Along a stream, on the w side of the second causeway going sw on Bartlett Springs Rd, Indian Valley Reservoir. 449 Comment
  JEPS104388  Mimulus microphyllus Lowell Ahart 2003-7-14 10396 Lake Near a small stream, at Barrel Spring, ca 1 1/2 mi (air) south of Bartlett Springs Rd, ca 2 mi (air) w of Bear Valley. 396 Comment
  JEPS11567  Mimulus microphyllus W. L. Jepson 1920-5-23 8994 Lake Indian Valley Comment
  UCD81724  Mimulus nasutus Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5728 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
  JEPS74812  Mimulus nudatus L. R. Heckard, T. I. Chuang, and R. Bacigalupi 1975-5-7 4020 Colusa just sw of site Old Kowalski ranch (below upper dam road, sw of Leesville); Upper Indian Valley 396 Comment
  UCD81729  Mimulus rattanii Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5731 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. 864 Comment
  UCD82088  Mimulus rattanii Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5615 Lake 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. 821 Comment
  HSC66056  Mimulus tilingii Cathie Goldberg, Lynn Kunstman, Lauren Philbrick, Geoff Walsh 1980-4-19 42 Lake Along Walker Ridge Rd., 1 mi. N of jct. with access road to Indian Valley Dam Comment
  CDA14209  Minuartia douglasii G. F. Hrusa 1993-5-2 10873 Lake Serpentine Flora of California; Upper parts of north end of Walker Ridge between Bear Valley and Indian Valley Reservoir. Comment
  HSC31564  Minuartia douglasii Teresa Prendusi 1974-5-4 49 Colusa Beyond Clyde Mine 1/8 mi. 854 Comment
  HSC44268  Minuartia douglasii D. L. Goforth 1977-4-24 27 Lake Barrel Springs Campground. 701 Comment
  HSC45728  Minuartia douglasii Christopher Knopp 1978-4-23 21 Lake Barrel Springs Campground 701 Comment
  UCD82137  Minuartia douglasii Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5670 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
  UCD82385  Minuartia douglasii Craig Thomsen; G. Harrington 2009-5-12 2827 Colusa Colusa County. Walker Ridge. South of spur road en route to Eaton Springs, about 1/2 mile east of Walker Ridge Rd. About 100 yds south of road (ravine with spring below). 822 Comment
  UCD82737  Minuartia douglasii Craig Thomsen; G. Harrington 2009-5-14 2918 Colusa Colusa County on Walker Ridge: south of spur road about 1/2 mile east of Walker Ridge Road, en route to Eaton Springs. 762 Comment
  UCD84445  Monardella Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6053 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
  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
  RSA739738  Monardella villosa L. P. Janeway 2007-6-17 9054 Lake Inner N coast Ranges, along dirt road 0.3km NW of Bartlett Springs Road and Indian Valley Reservoir, 5.6 air km E of Hough Springs 500 Comment
  UC2042512  Monardella villosa Holly Forbes and Barbara Keller 2011-7-7 Colusa Walker Ridge Road 6.1 miles N from its intersection with Highway 30. Comment
  CHSC71431  Monardella villosa subsp. villosa Vernon H. Oswald; Lowell Ahart 1998-7-15 9295 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Bartlett Springs Rd. 640 Comment
  CHSC98901  Monardella villosa subsp. villosa L. P. Janeway 2007-6-17 9054 Lake Inner North Coast Ranges. Along dirt road 0.3 km northwest of Bartlett Springs Road and Indian Valley Reservoir; about 5.6 air km east of Hough Springs. 500 Comment
  JEPS94759  Monardella villosa subsp. villosa Vernon H. Oswald and Lowell Ahart 1998-7-15 9295 Lake East side of county near Barrel Springs on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Bartlett Springs Road. 640 Comment
Read comments
Dec 26 2009
  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
  UCD135913  Monardella villosa subsp. villosa Veron H. Oswald; Lowell Ahart 1998-7-15 9295 Lake East side of county near Barrel Spring on the east side of Baldy Mountain, and west of Walker Ridge Road, 0.8 mile south of Bartlett Springs Road. 640 Comment
  UCD81712  Monardella villosa subsp. villosa Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5718 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
  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
  JEPS15267  Monolopia major Rimo Bacigalupi with G. L. Stebbins, Calvin McMillan, Peter Kamb, and S. Galen Smith 1950-4-16 3118 Colusa base grade (Bartlett Springs road) (western edge of valley); inner edge of easternmost North Coast Ranges, Bear Valley 426 Comment
  UC1049535  Monolopia major Rimo Bacigalupi 1950-4-16 3118 Colusa just w Bear Valley (along base of grade (Bartlett Mt. road), near Colusa-Lake County line); Inner North Coast Ranges 426 Comment
  UCD86800  Muhlenbergia mexicana R. M. Love 1947-9-1 s.n. Lake Stephens Ranch, Indian Valley. 396 Comment
  UC1146671  Nassella cernua Freed W. Hoffman 1944-7-13 1957 Colusa between Indian Valley and Bear Valley; North Coast Ranges Comment
  UCD84569  Nassella cernua Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6094 Lake Walker Ridge. Picnic Area near wetland/marsh. 899 Comment
  UCD82446  Nassella lepida Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5662 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
  CAS-BOT-BC242676  Nassella pulchra Ellen Dean; G. Harrington; C. Thomsen; Chiao-Yi Cheng; R. Wilmarth 2009-5-20 5628 Lake Walker Ridge. Along Walker Ridge Road, ca. 0.5 road mi N of intersection with road to Indian Valley Reservoir 821 Comment
  UCD82101  Nassella pulchra Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5628 Lake 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. 821 Comment
  JEPS70256  Navarretia cotulifolia W. L. Jepson 1920-5-23 8965 Colusa near Leesville (foot of Bartlett Grade, w side of Bear Valley); Bear Valley, Bartlett Grade 426 Comment
  HSC44290  Navarretia divaricata J. P. Smith, J. O. Sawyer 1971-6-6 4744 Lake Buck Flat Recreation Site Comment
  RSA716042  Navarretia intertexta L. Ahart, Robert A. Schlising 2005-7-2 12131 Lake Near Barrel Spring, Walker Ridge, about 1 1/2 miles (air) south of Bartlett Springs Road, about 2 miles (air) west of Bear Valley. 691 Comment
  CHSC91452  Navarretia intertexta subsp. intertexta Lowell Ahart; Robert Schlising 2005-7-2 12131 Lake Along a small stream, near Barrel Spring, Walker Ridge, about 1 1/2 miles (air) south of Bartlett Springs Road, about 2 miles (air) west of Bear Valley. 690 Comment
  JEPS107916  Navarretia intertexta subsp. intertexta Lowell Ahart, Robert Schlising 2005-7-2 12131 Lake Along a small stream, near Barrel Spring, Walker Ridge, about 1 1/2 miles (air) south of Bartlett Springs Road, about 2 miles (air) west of Bear Valley 690 Comment
  CHSC71444  Navarretia jepsonii Vernon H. Oswald; Lowell Ahart 1998-7-15 9282 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Bartlett Springs Rd. 640 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
  CHSC91453  Navarretia jepsonii Lowell Ahart; Robert Schlising 2005-7-2 12130 Lake Open flats, near Barrel Spring, Walker Ridge, about 1 1/2 miles (air) south of Bartlett Springs Road, about 2 miles (air) west of Bear Valley. 690 Comment
  JEPS107917  Navarretia jepsonii Lowell Ahart, Robert Schlising 2005-7-2 12130 Lake Open flats, near Barrel Spring, Walker Ridge, about 1 1/2 miles (air) south of Bartlett Springs Road, about 2 miles (air) west of Bear Valley 690 Comment
  JEPS93863  Navarretia jepsonii Vernon H. Oswald and Lowell Ahart 1998-7-15 9282 Lake 0.8 mi s of Bartlett Springs Road (e side of county near Barrel Spring on e side of Baldy Mountain and w of Walker Ridge Road); Baldy Mountain 640 Comment
  RSA466278A  Navarretia jepsonii L. F. LaPre, K. Campbell 1987-6-29 s.n. Lake Barrel Springs Camp, NE of Clear Lake at Colusa Co. line, on Walker Pass Road Comment
  RSA716043  Navarretia jepsonii L. Ahart, Robert A. Schlising 2005-7-2 12130 Lake Near Barrel Spring, Walker Ridge, about 1 1/2 miles (air) south of Bartlett Springs Road, about 2 miles (air) west of Bear Valley. 691 Comment
  UC856832  Navarretia jepsonii A. A. Heller 1916-6-6 12356 Colusa about 3 mi w Leesville (on the grade); Coast Range 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
  UCD48434  Navarretia jepsonii Vernon H. Oswald; Lowell Ahart 1998-7-15 9282 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Barlett Springs Rd. 640 Comment
  UCR50004  Navarretia jepsonii L. F. LaPre, K. Campbell 1987-6-29 s.n. Lake Inner North Coast Ranges, Barrel Spring Camp, NE of Clear Lake at Colusa Co. line, on Walker Ridge Rd Comment
  UCD106393  Navarretia linearifolia subsp. pinnatisecta Vernon H. Oswald; Lowell Ahart 1998-7-15 9281 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Barlett Springs Rd. 640 Comment
  CAS-BOT-BC230053  Navarretia mellita Ellen Dean; G. Harrington; C. Thomsen; Chiao-Yi Cheng; R. Wilmarth 2009-5-20 5636 Lake 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 818 Comment
  CHSC71445  Navarretia mellita Vernon H. Oswald; Lowell Ahart 1998-7-15 9297 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Bartlett Springs Rd. 640 Comment
  JEPS93805  Navarretia mellita Vernon H. Oswald and Lowell Ahart 1998-7-15 9297 Lake 0.8 mi s of Bartlett Springs Road (e side of county near Barrel Spring on e side of Baldy Mountain and w of Walker Ridge Road); Baldy Mountain 640 Comment
  UCD82108  Navarretia mellita Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5636 Lake 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. 818 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
  SEINET4673688  Navarretia paradoxinota Lowell Ahart, Robert Schlising 2005-7-2 12131 Lake Near Barrel Spring, Walker Ridge, about 1 1/2 miles (air) south of Bartlett Springs Road, about 2 miles (air) west of Bear Valley.; 0 691 Comment
  SEINET4673691  Navarretia paradoxinota David Gowen 2010-6-14 1129 Lake West off of Walker Ridge Road, in meadow near camping area north of Barrel Spring.; 0 701 Comment
  CAS-BOT-BC230054  Navarretia pubescens Ellen Dean; G. Harrington; C. Thomsen; Chiao-Yi Cheng; R. Wilmarth 2009-5-20 5646 Colusa Walker Ridge. Along Walker Ridge Road, ca. 0.5 road mi N of intersection with road to Indian Valley Reservoir. Parking area, undeveloped roads, flats and slopes on W side of road 839 Comment
  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
  CHSC71443  Navarretia sinistra subsp. pinnatisecta Vernon H. Oswald; Lowell Ahart 1998-7-15 9281 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Bartlett Springs Rd. 640 Comment
  UCD81730  Nemacladus capillaris Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5732 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. 864 Comment
  UCD82086  Nemacladus capillaris Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5613 Lake 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. 821 Comment
  JEPS5478  Nemacladus montanus W. L. Jepson 1920-5-23 8986 Lake Indian Valley; ne Lake Co. Comment
  UCD82389  Nemophila Craig Thomsen; G. Harrington 2009-5-12 2831 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
  CDA21523  Nemophila heterophylla G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17105 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  HSC66048  Nemophila heterophylla B. Ferguson, S. Harris, S. Smith 1980-4-19 Lake Along Walker Ridge Rd. 3.7 mi. N of jct. with access rd. to Indian Valley Dam Comment
  HSC67101  Nemophila heterophylla D. Boyd, M. Eichelberger, Tim Messick, T. Ranker 1980-4-19 10 Lake Coldsprings Campground along access road to Indian Valley Dam Comment
  HSC89704  Nemophila heterophylla Levine, Pacheco, Murphey 1989-4-15 25 Lake Blue Oak Campground, between Walker Ridge Rd. and Indian Valley Reservoir. Comment
  UCR139074  Nemophila heterophylla E. Brower, S. Marubayashi, E. Perry 1997-3-30 022 Lake Blue Oak Campground, Indian Valley Reservoir. 2.5 mi past intersection of access road and Walker Ridge Road 274 Comment
  CHSC32915  Nemophila menziesii S. Harris; B. Ferguson, M. Moble, M. Smith 1980-4-19 Lake Coldsprings Campground, along access road to Indian Valley Dam. Comment
  HSC66012  Nemophila menziesii Cathie Goldberg, Lauren Philbrick, Lynn Kunstman, Geoff Walsh 1980-4-19 3 Lake Coldsprings Campground, along access road to Indian Valley Dam. Comment
  UCD120230  Nemophila menziesii Debbie Stamp; Patty P., Joanne S., Cathy R., Cathy M. 1980-4-19 15 Lake Coldsprings Campground, along access road to Indian Valley Dam. In lower part of campground. Comment
  UCR139073  Nemophila menziesii var. menziesii E. Brower, S. Marubayashi, E. Perry 1997-3-30 023 Lake Blue Oak Campground, Indian Valley Reservoir. 2.5 mi past intersection of access road and Walker Ridge Road 274 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
  HSC66645  Nemophila pedunculata Cathie Goldberg, Lauren Philbrick, Lynn Kunstman, Geoff Walsh 1980-4-19 18 Lake Coldsprings Campground, along access road to Indian Valley Dam. Comment
  HSC90945  Nemophila pedunculata Rohmer, Grefsrud, Reed 1990-4-14 34 Lake Blue Oak Campground, Indian Valley Reservoir Access Rd., 2.5 mi. NE of intersection with Walker Ridge Rd. 534 Comment
  CDA22926  Orobanche bulbosa G. F. Hrusa, R. Gross 2008-5-23 17435 Lake North Coast Ranges; Above N. Fk. Cache Cr. +/- 1 mi. below spillway of Indian Valley Reservoir. 426 Comment
  JEPS127817  Orobanche bulbosa Susan Fawcett 2014-5-13 226 Colusa Walker Ridge, near border of Lake and Colusa Counties. Comment
  CHSC71441  Orobanche californica subsp. jepsonii Vernon H. Oswald; Lowell Ahart 1998-7-15 9274 Colusa Bartlett Springs Rd. 2.1 mi west of Bear Valley Rd., 0.8 mi east of Sawtelle Valley and Grapevine Flat roads. Along the edge of a meadow. 524 Comment
  HSC46133  Orobanche fasciculata J. P. Smith, J. O. Sawyer 1971-6-6 4715 Lake 0.75 mi. N of Clyde Mine, Walker Ridge Rd. Comment
  UCD163347  Orobanche fasciculata Craig D. Thomsen 2000-5-11 2342 Lake Walker Ridge. 3 miles southwest of Windtun Campground turnoff, Til Jones Spring area. Comment
  UCD84573  Orobanche fasciculata Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6098 Colusa Walker Ridge on border of Lake and Colusa counties. Just E of Barrel springs area along Walker Ridge Road. 721 Comment
  HSC66583  Orobanche uniflora D. Boyd, M. Eichelberger, Tim Messick, T. Ranker 1980-4-19 11 Lake Coldsprings Campground along access road to Indian Valley Dam Comment
  HSC90073  Orobanche uniflora Amy Austin, Tony LaBanca, Noreen McClintock 1990-4-14 33 Lake Blue Oak Campground on Indian Valley Reservoir Rd., 2.5 mi. NE of intersection with Walker Ridge Rd. 534 Comment
  HSC90408  Orobanche uniflora Joe Doyle, Gayle Honeycutt, Ethan Freid 1992-4-12 44 Lake Blue Oak Recreation Site, 6.5 mi. N of Hwy. 20 on Walker Ridge Rd. 488 Comment
  JEPS81613  Orobanche valida subsp. howellii Bill Ruskin 1982-6-6 Lake 1.5 mi. n.e. of Kowalski Ranch next to Bartlett Springs Rd. 457 Comment
  POM332461  Orthocarpus attenuatus Teri Bartowski, Shane Feusier, Ruth Takaki, Carol Zimmerer 1980-4-19 29 Lake Along Walker Ridge Road, 1 mile north of junction with access road to Indian Valley Dam. Comment
  RSA489571  Orthocarpus hispidus James L. Reveal 1988-6-2 6992 Lake Barrel Springs area just west of the Walker Ridge Road, 1 mile south of the Bartlett Springs Road and about 15 miles north of Hwy 20. 762 Comment
  SD8971  Packera bolanderi unknown 1882-7-1 Lake Indian Valley Comment
  CHSC71420  Packera clevelandii Vernon H. Oswald; Lowell Ahart 1998-7-15 9286 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Bartlett Springs Rd. Along the banks of an intermittent stream. 640 Comment
  CHSC84193  Packera clevelandii Lowell Ahart 2003-7-14 10393 Lake Near a small stream, at Barrel Spring, about 1 1/2 miles (air) south of Bartlett Springs Road, about 2 miles (air) west of Bear Valley. 396 Comment
  CHSC88565  Packera clevelandii L. P. Janeway; B. Castro 2001-6-3 7103 Colusa Inner North Coast Ranges. At Buck Flat: east side of Walker Ridge at head of Gaither Canyon; about 1.3 km south-southeast of Baldy Mountain. Meadow. 872 Comment
  CHSC88577  Packera clevelandii L. P. Janeway 2001-6-6 7112 Colusa Inner North Coast Ranges. Eaton Springs, about 2.4 km east of Walker Ridge Road. Meadow opening. 713 Comment
  JEPS104240  Packera clevelandii Lowell Ahart 2003-7-14 10393 Lake Near a small stream, at Barrel Spring, ca 1 1/2 mi (air) south of Bartlett Springs Rd, ca 2 mi (air) w of Bear Valley. 396 Comment
  JEPS23643  Packera clevelandii R. F. Hoover 1938-6-9 3578 Lake Indian valley Comment
  JEPS94690  Packera clevelandii Vernon H. Oswald and Lowell Ahart 1998-7-15 9286 Lake e side of county near Barrel Spring (on e side of Baldy Mountain and w of Walker Ridge Road 0.8 mi s of Bartlett Springs Road); Baldy Mountain 640 Comment
  JEPS94755  Packera clevelandii Vernon H. Oswald and Lowell Ahart 1998-7-15 9286 Lake e side of county near Barrel Spring (on e side of Baldy Mountain and w of Walker Ridge Road 0.8 mi s of Bartlett Springs Road); Baldy Mountain 640 Comment
  OBI15510  Packera clevelandii Rimo Bacigalupi, G. T. Robbins 1954-6-25 4618 Lake Along Stanton Crk, at the Kowalski Ranch, at upper edge of Indian Valley, along rd from Indian valley to Bear Valley (in Colusa county), 3.8 mi W of Colusa County line 442 Comment
  SD8772  Packera clevelandii Daniel Cleveland 1882-7-8 Lake Indian Valley Comment
  SD8773  Packera clevelandii Daniel Cleveland Jun 1882 Lake Indian Valley Comment
  UC767452  Packera clevelandii R. F. Hoover 1938-6-9 3578 Lake Indian Valley Comment
  UC91389  Packera clevelandii D. Cleveland 1892-7-1 Lake Indian Valley Comment
  UCD110420  Packera clevelandii Daniel Slakey; CNPS volunteers 2011-6-12 6 Colusa Walker Ridge. Wet meadow area on E side of Walker Ridge Rd. About 18 km N of Hwy.20 by road. 876 Comment
  UCD110512  Packera clevelandii Daniel Slakey; CNPS volunteers 2011-6-12 6 Colusa Walker Ridge. Wet meadow area on E side of Walker Ridge Rd. About 18 km N of Hwy.20 by road. 876 Comment
  UCD134743  Packera clevelandii Vernon H. Oswald; Lowell Ahart 1998-7-15 9286 Lake east side of county near Barrel Spring on the east side of Baldy Mountain and west of Walker Ridge Road. 0.8 mile south of Bartlett Springs Road. 640 Comment
  UCD163342  Packera clevelandii Craig D. Thomsen 2007-7-31 s.n. Colusa Walker Ridge. East of Eaton Springs en route to Rathburn Mine. Comment
  SD8774  Packera eurycephala Daniel Cleveland 1882-7-16 Lake Indian Valley Comment
  UCD163313  Packera eurycephala Craig D. Thomsen 1997-4-13 1902 Colusa Bear Valley. About 6 miles north of Hwy 20. Vicinity of Trout Creek, north of Deadshot Canyon. Comment
  UCD163853  Packera eurycephala Craig D. Thomsen 2000-5-30 2274 Colusa Bear Valley. About 7 miles north of Hwy 20. Comment
  CAS-BOT-BC316854  Packera eurycephala var. eurycephala Doris K. Kildale 1928-5-7 4985 Lake 5 miles east of Hough's Mineral Springs Comment
  JEPS74815  Packera eurycephala var. eurycephala L. R. Heckard, T. I. Chuang, and R. Bacigalupi 1975-5-7 4024 Colusa sw of Leesville (just sw of site of old Kowalski ranch( below upper dam road)); Upper Indian Valley 396 Comment
  UC831740  Packera eurycephala var. eurycephala A. A. Heller 1916-6-8 12384 Lake between Hough's Springs and the Colusa County line Comment
  UC91675  Packera eurycephala var. eurycephala D. Cleveland 1882-7-1 Lake Indian Valley Comment
  CHSC106247  Packera greenei B. Castro; L. P. Janeway 2001-6-3 1258 C Colusa Inner North Coast Ranges. Spring at Grapevine flat, on top of Walker Ridge about 0.5 mi E of Baldy Mountain. East-facing slope/bench with large springy/meadowy area. 883 Comment
  CHSC43635  Packera greenei Vernon Oswald 1986-5-12 2014 Lake Brim Rd. (Bartlett Springs Rd.) at the jct. of the road to Barrel Spring. 640 Comment
  JEPS23637  Packera greenei W. L. Jepson 1920-5-24 9027 Lake Indian Valley, n Lake County Indian Valley Comment
  JEPS23638  Packera greenei R. F. Hoover 1938-6-9 3576 Lake Indian Valley Comment
  UCD159330  Packera greenei D. S. Park 2010-6-5 114 Colusa Walker ridge, Cold Spring Mt. roadside, grassland. 760 Comment
  UCD82522  Packera greenei Craig Thomsen; G. Harrington 2009-5-12 2879 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. East-facing hillslope above (west border) Eaton Springs meadow complex. 722 Comment
  HSC44308  Pectocarya pusilla Barbara Kelly 1977-4-24 347 Lake Barrel Springs Campground 701 Comment
  CHSC84651  Pedicularis densiflora Matt Quinn 2001-3-31 33 Colusa Found on Walker Ridge, north of Highway 20 between Bear Valley and Clear Lake, at the top of the road leaving Bear Valley. On ridgetop. 664 Comment
  CHSC90083  Pedicularis densiflora Ross Rowland 2001-3-30 17 Colusa On hillside at the junction of Walker Ridge Road and Bear Valley Road. 545090mE/4334280mN/zone 10N. 663 Comment
  HSC27152  Pedicularis densiflora J. P. Smith, J. O. Sawyer 1972-4-1 5162 Lake 6.2 mi. N of junction of Hwy. 20 and Walker Ridge Rd. Comment
  HSC44445  Pedicularis densiflora R. York 1978-4-23 148 Lake Barrel Springs Campground. 701 Comment
  HSC66030  Pedicularis densiflora M. Moble, M. Smith, B. Ferguson, S. Harris 1980-4-19 Lake Along Walker Ridge Rd., 1 mi. N of junction with access road to Indian Valley Dam Comment
  HSC69919  Pedicularis densiflora Thomas W. Nelson, Jane Nelson 1978-4-2 3868 Lake Along Walker Ridge Rd., 6 mi. N of junction with Hwy. 20 Comment
  UCD83683  Pedicularis densiflora John Rosenthal; with PLB 102 class 2010-5-2 4 Colusa Walker Ridge. East slope of Walker Ridge. Eaton Springs area. 716 Comment
  CHSC114990  Pediomelum californicum Lowell Ahart 2015-4-28 20100 Lake About 150 yards west of Barrel Spring Meadow, about 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. 696 Comment
  CHSC48568  Pediomelum californicum Vernon Oswald 1986-5-12 2017 Lake Brim Rd. (Bartlett Springs Rd.) at the jct. of the road to Barrel Spring. 640 Comment
  JEPS123893  Pediomelum californicum Lowell Ahart 2015-4-28 20100 Lake About 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. Comment
  UCD82107  Pediomelum californicum Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5635 Lake 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. 818 Comment
  UCD84548  Pediomelum californicum Ellen Dean; C. Thomsen, T. Hansen, and windfarm meeting 2010-6-11 6146 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
  CDA20426  Pellaea andromedifolia G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17103 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  CHSC32931  Pellaea andromedifolia D. Boyd; M. Eichelberger, T. Messick, T. Ranker 1980-4-19 15 Lake Coldsprings Campground, along access road to Indian Valley Dam. Comment
  HSC66585  Pellaea andromedifolia D. Boyd, M. Eichelberger, Tim Messick, T. Ranker 1980-4-19 15 Lake Coldsprings Campground along access road to Indian Valley Dam Comment
  HSC45695  Pellaea mucronata Christopher Knopp 1978-4-23 27 Lake Barrel Springs Campground 701 Comment
  HSC66588  Pellaea mucronata D. Boyd, M. Eichelberger, Tim Messick, T. Ranker 1980-4-19 19 Lake Coldsprings Campground along access road to Indian Valley Dam Comment
  UCD83617  Pellaea mucronata var. mucronata Craig Thomsen; G. Harrington 2009-5-12 2833 Colusa Colusa County. Walker Ridge. South of spur road en route to Eaton Springs, about 1/2 mile east of Walker Ridge Rd. About 100 yds south of road (ravine with spring below). 822 Comment
  UCR37571  Penstemon heterophyllus Michelle A. Strull, Et al. 1984-4-28 12 Colusa Brim Road 1.6 mi west of Leesville-Lodoga Jct. 419 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
  CHSC71453  Penstemon heterophyllus var. purdyi Vernon H. Oswald; Lowell Ahart 1998-7-15 9299 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Bartlett Springs Rd. 640 Comment
  JEPS93797  Penstemon heterophyllus var. purdyi Vernon H. Oswald and Lowell Ahart 1998-7-15 9299 Lake 0.8 mi s of Bartlett Springs Road (e side of county near Barrel Spring on the e side of Baldy Mountain and w of Walker Ridge Road); Baldy Mountain 640 Comment
  UCD82488  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
  HSC66049  Pentagramma triangularis S. Harris, B. Ferguson, M. Smith, M. Moble 1980-4-19 Lake Along Walker Ridge Rd., 3.7 mi. N of jct. with access rd. to Indian Valley Dam Comment
  HSC66133  Pentagramma triangularis Teri Bartowski, Shane Feusier, Ruth Takaki, Carol Zimmerer 1980-4-19 37 Colusa Bartlett Springs Rd. at stream crossing. Comment
  HSC66643  Pentagramma triangularis Cathy Goldberg, Lauren Philbrick, Lynn Kunstman, Geoff Walsh 1980-4-19 20 Lake Coldsprings Campground, along access road to Indian Valley Dam Comment
  CHSC84190  Perideridia kelloggii Lowell Ahart 2003-7-14 10392 Lake Near a small stream, at Barrel Spring, about 1 1/2 miles (air) south of Bartlett Springs Road, about 2 miles (air) west of Bear Valley. 396 Comment
  UC875337  Perideridia kelloggii A. A. Heller 1916-6-6 12361 Colusa grade about 3 mi w Leesville; Coast Range Comment
  UCD82501  Perideridia kelloggii Craig Thomsen; G. Harrington 2009-5-12 2860 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 710 Comment
  HSC66586  Phacelia cicutaria D. Boyd, M. Eichelberger, Tim Messick, T. Ranker 1980-4-19 16 Lake Coldsprings Campground along access road to Indian Valley Dam Comment
  JEPS81014  Phacelia distans D. Boyd, M. Eichelberger, T. Messick, and T. Ranker 1980-4-19 16 Lake along access road to Indian Valley Dam Coldsprings Campground Comment
  UCR138750  Phacelia distans M. Brooks, Julie Evens, H. Johnson 1997-3-30 12 Lake Blue Oak Campground 274 Comment
  HSC45705  Phacelia imbricata Sheila Logan 1978-4-23 105 Lake Barrel Springs Campground 701 Comment
  UCD84562  Phacelia imbricata Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6087 Lake Walker Ridge. Along Walker Ridge Road. At a lookout that looks out over Indian Valley Reservoir that is located 8.3 road miles N of the intersection of Hwy 20. 1054 Comment
  UC901839  Phacelia imbricata subsp. imbricata L. Constance, R. Bacigalupi, C. R. Bell, and A. H. Holmgren 1950-4-26 3322 Colusa ridge between Bear Valley and Indian Valley (near Colusa-Lake Co. line) 609 Comment
  UCR138751  Phacelia imbricata var. imbricata M. Brooks, Julie Evens, H. Johnson 1997-3-30 10 Lake Blue Oak Campground 274 Comment
  CDA24960  Phacelia tanacetifolia G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17099 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  UCD82733  Phacelia tanacetifolia Craig Thomsen; G. Harrington 2009-5-14 2914 Colusa Colusa County on Walker Ridge: south of spur road about 1/2 mile east of Walker Ridge Road, en route to Eaton Springs. 762 Comment
  UCD82490  Phalaris aquatica Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5676 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
  CDA22932  Phlox gracilis G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17117 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  HSC41907  Phoradendron bolleanum M. A. Baker 1977-4-24 212 Lake Barrel Springs Campground. 701 Comment
  UCD83810  Phoradendron bolleanum Ellen Dean; G. Harrington, K. Mawdsley, J. Shepard 2010-5-1 5957 Colusa Walker Ridge, along Walker Ridge Road, at intersection with road/trail to Mount Baldy. 880 Comment
  CDA22371  Phoradendron densum Vernon H. Oswald & Lowell Ahart 1998-5-7 9015 Lake Bartlett Springs Road on the east approach to Indian Valley Reservoir, between Complexion Spring and Kowalski Ranch. Comment
  JEPS21852  Phoradendron densum John R. Swanson 1958-4-26 323 Colusa 2.8 mi. w. Bear Valley rd. (near Colusa-Lake Co. boundary, on rd. to Bartlett Springs) 670 Comment
  JEPS94200  Phoradendron densum Vernon Oswald and Lowell Ahart 1998-5-7 9015 Lake Bartlett Springs Rd. on the e. approach to Indian Valley Reservoir (between Complexion Spring & Kowalski Ranch) 457 Comment
  UC1078784  Phoradendron densum S. A. Cook 1958-4-26 1508 Lake between Bear Valley and Indian Valley 975 Comment
  HSC87061  Phoradendron serotinum subsp. tomentosum Anthony J. Desch, Bryon Cariss 1988-4-16 27 Lake 6.1 mi. from Hwy. 20 on Walker Ridge Rd. in Blue Oak Campground 579 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
  UCD81868  Phragmites australis Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5750 a Lake Walker Ridge. Picnic area near Cold Spring. 912 Comment
  UCD89841  Phragmites australis R. M. Love 1947-9-1 s.n. Lake Stephens Ranch, Indian Valley. 396 Comment
  UCD108169  Pickeringia montana Vernon H. Oswald; Lowell Ahart 1998-7-15 9300 Lake East side of county on Walker Ridge Rd. 4.7 mi south of Barlett Springs Rd., 9.6 mi north of Hwy. 20. 883 Comment
  CHSC71424  Pickeringia montana var. montana Vernon H. Oswald; Lowell Ahart 1998-7-15 9300 Lake East side of county on Walker Ridge Rd. 4.7 mi south of Bartlett Springs Rd., 9.6 mi north of Hwy. 20. Along this section of road. 883 Comment
  JEPS65575  Pickeringia montana var. montana W. L. Jepson 1920-5-24 9024 Lake hills e Indian Valley (ne Lake Co.) 548 Comment
  JEPS93809  Pickeringia montana var. montana Vernon H. Oswald and Lowell Ahart 1998-7-15 9300 Lake e side of county on Walker Ridge Road 4.7 mi s of Bartlett Springs Road (9.6 mi n of Highway 20); Walker Ridge Road 883 Comment
  UCD83751  Pinus attenuata Ellen Dean; G. Harrington, K. Mawdsley, J. Shepard 2010-5-1 5948 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
  HSC45738  Pinus sabiniana Howee Barban 1978-4-23 37 Lake Barrel Springs Campground 701 Comment
  HSC46099  Pinus sabiniana J. P. Smith 1972-4-1 5168 Lake 6.2 mi. N of junction of Hwy. 20 and Walker Ridge Rd. Comment
  HSC66596  Pinus sabiniana Debbie Stamp, Cathy Railey, Patty Powers, Joanne Spitler, Cathy Macdonald 1980-4-19 13 Lake Coldsprings Campground along access road to Indian Valley Dam Comment
  JEPS121703  Piperia leptopetala J. Greenhouse 1993-6-6 Lake Walker Ridge Comment
  CAS-BOT-BC228064  Plagiobothrys Doris K. Kildale 1928-5-7 4983 Lake 5 miles E of Hough's Mineral Springs Comment
  UCD82474  Plagiobothrys bracteatus Craig Thomsen; G. Harrington 2009-5-12 2852 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 707 Comment
  UCD84519  Plagiobothrys bracteatus Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6070 Lake Lake County. Walker Ridge. Along Bartlett springs road just west of Walker Ridge Rd intersection. 647 Comment
  HSC95798  Plagiobothrys fulvus A. Skelly, G. McCabe, B. Bletcher 1996-3-30 24 Lake 5.3 mi. W of Walker Ridge Rd. on Indian Res. Rd.; 57 mi. E of Hwy. 101 on Hwy. 20. Beside Clear Creek 549 Comment
  CHSC33093  Plagiobothrys nothofulvus Teri Bartowski; Shane Feusier, Ruth Takaki, Carol Zimmerer 1980-4-19 11 Lake Coldsprings Campground, along access road to Indian Valley Dam. Comment
  HSC66658  Plagiobothrys nothofulvus Cathie Goldberg, Lauren Philbrick, Lynn Kunstman, Geoff Walsh 1980-4-19 2 Lake Coldsprings Campground, along access road to Indian Valley Dam. Comment
  UCD82471  Plagiobothrys nothofulvus Craig Thomsen; G. Harrington 2009-5-12 2849 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 707 Comment
  UC496333  Plagiobothrys reticulatus Doris K. Kildale 1928-5-7 4983 Lake 5 mi e Hough's Mineral Springs Comment
  CHSC114998  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2015-4-28 20109 Lake About 60 yards north of the south edge of the meadow, Barrel Spring Meadow, about 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. Comment
  CHSC78131  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2000-6-2 8440 Lake In a meadow near a small wash, 100 feet northeast of Bartlett Springs road, about 400 yards southwest of the radio tower, about 1/4 mile west of Bartlett Springs Road and Walker Ridge Road, about 2 1/2 miles west of Bear Valley. 609 Comment
  JEPS123896  Plagiobothrys stipitatus var. micranthus Lowell Ahart 2015-4-28 20109 Lake About 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. Comment
  UCD82473  Plagiobothrys stipitatus var. stipitatus Craig Thomsen; G. Harrington 2009-5-12 2850 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 707 Comment
  HSC31306  Plagiobothrys tenellus Carter Schleicher 1974-5-4 23 Colusa 0.75 mi. from T junction of Walker Ridge Rd. and Indian Valley, near Clyde Mine 854 Comment
  HSC66664  Plagiobothrys tenellus S. Harris, B. Ferguson, S. Smith 1980-4-19 Lake Coldsprings Campground, along access road to Indian Valley Dam Comment
  JEPS61082  Plagiobothrys tener var. subglaber W. L. Jepson 1920-5-23 8993 Lake Indian Valley; ne Lake Co. Comment
  CHSC115208  Plantago erecta Lowell Ahart 2015-4-28 20097 Lake East of a small meadow, about 150 yards west of Barrel Spring Meadow, about 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. 696 Comment
  HSC66597  Plantago erecta Joanne Spitler, Debbie Stamp, Patty Powers, Cathy Railey, Cathy Macdonald 1980-4-19 11 Lake Coldsprings Campground, along access road to Indian Valley Dam, across road from campground Comment
  JEPS123916  Plantago erecta Lowell Ahart 2015-4-28 20097 Lake About 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. Comment
  JEPS6405  Plantago erecta W. L. Jepson 1920-5-23 8997 Lake Indian Valley, n Lake Co. Indian Valley 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
  UCSC009425  Plantago erecta Lowell Ahart 2015-4-28 20097 Lake East of a small meadow, about 150 yards west of Barrel Spring Meadow, about 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams 696 Comment
  CHSC32934  Platystemon californicus Cathie Goldberg; Lauren Philbrick, Lynn Kunstman, Geoff Walsh 1980-4-19 Lake Coldsprings campground, along access road to Indian Valley Dam. Comment
  HSC66692  Platystemon californicus Debbie Stamp, Patty Powers, Cathy Railey, Cathy Macdonald, Joanne Spilter 1980-4-19 2 Lake Coldsprings Campground, along access road to Indian Valley Dam Comment
  HSC90038  Platystemon californicus Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-14 45 Lake Blue Oak Campground, Indian Valley Reservoir Access Rd., 2.5 mi. NE of intersection with Walker Ridge Rd. 534 Comment
  HSC90084  Platystemon californicus Pamela Grefsrud, Marty Reed, Eileen Rohmer 1990-4-14 51 Lake Blue Oak Campground, Indian Valley Reservoir Access Rd., 2.5 mi. NE of intersection with Walker Ridge Rd. 534 Comment
  UCR139072  Plectritis brachystemon E. Brower, S. Marubayashi, E. Perry 1997-3-30 024 Lake Blue Oak Campground, Indian Valley Reservoir. 2.5 mi past intersection of access road and Walker Ridge Road 274 Comment
  CDA21538  Plectritis ciliosa G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17088 Lake North Coast Ranges; immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  HSC42192  Plectritis ciliosa M. A. Baker 1977-4-24 209 Lake Barrel Springs Campground. 701 Comment
  HSC45702  Plectritis ciliosa Sheila Logan 1978-4-23 109 Lake Barrel Springs Campground. 701 Comment
  HSC46061  Plectritis ciliosa Catherine Chin 1978-4-23 41 Lake Barrel Springs Campground. 701 Comment
  HSC67107  Plectritis ciliosa Teri Bartkowski, Shane Feusier, Ruth Takaki, Carol Zimmerer 1980-4-19 7 Lake Coldsprings Campground, along access road to Indian Valley Dam. Comment
  UCD82392  Plectritis ciliosa Craig Thomsen; G. Harrington 2009-5-12 2835 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
  CHSC115194  Plectritis macrocera Lowell Ahart 2015-4-28 20096 Lake In the meadow, about 150 yards west of Barrel Spring Meadow, about 1/4miles (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. 696 Comment
  CHSC71006  Plectritis macrocera Vernon Oswald; Lowell Ahart 1998-5-7 9007 Colusa Barlett Springs Rd. 2.1 mi west of Bear Valley Rd., 0.8 mi east of Sawtelle Valley and Grapevine Flat roads. 524 Comment
  HSC44300  Plectritis macrocera Carolyn Sanford 1977-4-24 351 Lake Barrel Springs Campground. 701 Comment
  HSC44454  Plectritis macrocera R. York 1978-4-23 143 Lake Barrel Springs Campground. 701 Comment
  HSC45519  Plectritis macrocera M. Alcasas 1978-4-23 50 Lake Barrel Springs Campground. 701 Comment
  HSC66657  Plectritis macrocera Cathie Goldberg, Lauren Philbrick, Lynn Kunstman, Geoff Walsh 1980-4-19 4 Lake Coldsprings Campground, along access road to Indian Valley Dam. Comment
  JEPS123918  Plectritis macrocera Lowell Ahart 2015-4-28 20096 Lake About 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. 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
  RSA0114869  Plectritis macrocera Lowell Ahart 2015-4-28 20096 Lake About 150 yards west of Barrel Spring Meadow, about 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. Comment
  CDA40146  Poa bulbosa G. F. Hrusa, R. Gross, G. Holstein 2014-5-14 18599 Lake North Coast Ranges; Silver Spur Ranch. Benmore Canyon Rd. in upper Benmore Canyon 1 1/2 mi. S of spillway at Indian Valley Reservoir. 528 Comment
  HSC66648  Poa bulbosa Cathie Goldberg, Lauren Philbrick, Geoff Walsh, Lynn Kunstman 1980-4-19 12 Lake Coldsprings Campground, along access road to Indian Valley Dam. Comment
  HSC86896  Poa bulbosa Anthony J. Desch, Bryon Cariss 1988-4-16 24 Lake 6.1 mi. from Hwy. 20 on Walker Ridge Rd. in Blue Oak Campground. 579 Comment
  HSC96802  Poa bulbosa J. Carey, A. Hong, J. Leffingwell 1995-4-2 35 Lake Blue Oak Recreation Site Campground. 537 Comment
  RSA299478  Poa bulbosa S. Harris, B. Ferguson, M. Moble, Marjorie Smith 1980-4-19 s.n. Lake Coldsprings Campground, along access road to Indian Valley Dam. 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
  UCD82719  Poa pratensis Craig Thomsen; G. Harrington 2009-5-14 2902 Colusa Colusa County on Walker Ridge: Probably from Eaton Springs about one mile east of Walker Ridge Road. Comment
  UCD84517  Poa pratensis Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6068 Colusa Colusa County. On Lake County border. Walker Ridge. Along Walker Ridge Road. Buck Flat. 872 Comment
  UCD82731  Poa secunda Craig Thomsen; G. Harrington 2009-5-14 2913 Colusa Colusa County on Walker Ridge: about south of spur road, 1/2 mile east of Walker Ridge Road, en route to Eaton Springs. 813 Comment
  UCD90886  Poa secunda subsp. secunda John R. Davey 1967-12-2 90 Colusa Border, ca. 5-6 miles WSW of Leesville, Bartlett Springs Road N of Baldy Mountain. 609 Comment
  UC1552832  Pogogyne serpylloides Frederica Bowcutt 1985-4-11 484 Lake Walker Ridge aprrox. 10 miles E of Clear Lake and 45 miles NE of Santa Rosa W of Hwy 20 1/4 mile Comment
  UCD84524  Polygonum bolanderi Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6075 Lake Lake County. Walker Ridge. Along Bartlett springs road just west of Walker Ridge Rd intersection. 647 Comment
  UCD84522  Polypogon monspeliensis Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6073 Lake Lake County. Walker Ridge. Along Bartlett springs road just west of Walker Ridge Rd intersection. 647 Comment
  UCD83719  Populus fremontii subsp. fremontii Joseph Schlottman; with PLB 102 class 2010-5-2 5 Colusa East slope of Walker Ridge. Eaton Springs. Adjacent to main creek. 710 Comment
  SEINET3892951  Potamogeton pectinatus James L. Reveal, Caroline G. Reveal 1972-7-18 2787 Mono Along California Highway 120, 3.4 miles west of U.S. Highway 6 at Benton, in a small lake south of the road 1.6 miles northeast of Benton Hot Springs.; 0 Comment
  UC1261170  Potamogeton pectinatus James L. Reveal, Caroline G. Reveal 1972-7-18 2787 Mono 3.4 mi w of U.S. Highway 6 at Benton (along Cal Hwy 120, 1.6 mi ne of Benton Hot Springs) Comment
  UCD82732  Potentilla Craig Thomsen; G. Harrington 2009-5-14 2911 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
  CDA9371  Potentilla glandulosa G. F. Hrusa, R. Gross, G. Holstein 2014-5-14 18597 Lake North Coast Ranges; Silver Spur Ranch. Benmore Canyon Rd. in upper Benmore Canyon 1 1/2 mi. S of spillway at Indian Valley Reservoir. 528 Comment
  UCD163849  Prunus subcordata Craig D. Thomsen 2000-6-7 2366 Colusa Bear Valley. About 7 miles north of Hwy 20. Comment
  UCD84572  Prunus virginiana var. demissa Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6097 Colusa Colusa County. On Lake County border. Walker Ridge. Along Walker Ridge Goad, between Cold spring and Buck Flat. 971 Comment
  UCD159336  Pseudognaphalium californicum D. S. Park; E. Dean 2010-6-5 120 Colusa Walker ridge, Cold Spring Mt. roadside on exposed slope. 935 Comment
  UCD84571  Pseudognaphalium californicum Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6096 Colusa Colusa County. On Lake County border. Walker Ridge. Along Walker Ridge Goad, between Cold spring and Buck Flat. 971 Comment
  UCD91510  Pseudoroegneria spicata Freed W. Hoffman 1944-7-13 1964 Colusa Western Colusa County. North Coast Ranges. Between Indian and Bear Valleys. Comment
  UCD82083  Psilocarphus tenellus Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5610 Lake 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. 821 Comment
  UCR138881  Psoralea californica A. Burgard, J. Goldsmith, J. Kalt 1996-5-4 74 Colusa 8.4 mi north of Indian Reservoir Road on Walker Ridge Road; 57 mi east of Hwy 101 on Hwy 20 701 Comment
  UCD84509  Quercus X morehus Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6060 Colusa Colusa County. On Lake County border. Walker Ridge. Along Walker Ridge Road, between Cold Spring and Buck Flat. 971 Comment
  HSC90049  Quercus berberidifolia Pamela Grefsrud, Marty Reed, Eileen Rohmer 1990-4-14 56 Lake Blue Oak Campground, Indian Valley Reservoir Access Rd., 2.5 mi. NE of intersection with Walker Ridge Rd. 534 Comment
  UCD84511  Quercus berberidifolia Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6062 Colusa Colusa County. On Lake County border. Walker Ridge. Along Walker Ridge Road, between Cold Spring and Buck Flat. 971 Comment
  UCD82546  Quercus chrysolepis Ellen Dean; G. Harrington, C. Thomsen,R. Wilmarth,Chiao-Yi Cheng 2009-5-20 5701 Colusa Walker Ridge. Along Walker Ridge just S of turn-off to picnic area near Cold Spring. 1007 Comment
  UCD83754  Quercus chrysolepis Ellen Dean; G. Harrington, K. Mawdsley, J. Shepard 2010-5-1 5951 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
  CAS-BOT-BC86895  Quercus douglasii Pat Daly; Rudy Galindo 1988-4-16 41 Lake 6.1 miles on Wlaker Ridge Road from Hwy. 20 to Blue Oak Campground 731 Comment
  HSC89798  Quercus douglasii L. Blackford, S. Branch, D. Malm 1988-4-16 65 Lake 6.1 mi. on Walker Ridge Road off Hwy 20 at Blue Oak campground 732 Comment
  CAS-BOT-BC86195  Quercus dumosa L. Blackford; S. Branch; D. Malm 1988-4-16 65 Lake 6.1 miles on Walker Ridge Rd. off highway 20 at Blue Oak Campground 731 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
  CAS-BOT-BC79617  Quercus durata N. Wynne; M. Peckham; J. Bamesberger 1994-4-23 31 Lake Benmore Cnyn Quad., on access road to Indian Valley Res. approx one mi from Blue Oak Campground, approx 1.5 mi from Comment
  CHSC20714  Quercus durata Robert A. Schlising 1962-5-4 2236 Lake Along Bartlett Springs Road, 3.2 mi W of Jct with Bear Valley Road. Comment
  JEPS37341  Quercus durata W. L. Jepson 1920-5-24 9025 Lake e of Indian Valley Comment
  UCD163843  Quercus durata Craig D. Thomsen 2000-6-1 s.n. Colusa Bear Valley. About 7 miles north of Hwy 20. Comment
  UCD45981  Quercus durata D. Sanchez-Mata 1996-7-3 s.n. Colusa Williams. Walker Ridge. Wilburg Springs-Wintun Camp. Serpentine chaparral. 850 Comment
  UCD84510  Quercus durata Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6061 Colusa Colusa County. On Lake County border. Walker Ridge. Along Walker Ridge Road, between Cold Spring and Buck Flat. 971 Comment
  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
  UCR52364  Quercus durata L. Blackford, S. Branch, D. Malm 1988-4-16 62 Colusa 6.1 mi. on Walker Ridge Road off Hwy 20 at Blue Oak campground 732 Comment
  CHSC48382  Quercus durata var. durata Vernon Oswald 1986-5-12 2008 Colusa Brim Rd. (Bartlett Springs Rd.) 1.8 mi w of Bear Valley Rd. 502 Comment
  HSC27151  Quercus durata var. durata J. P. Smith, J. O. Sawyer 1972-4-1 5163 Lake 6.2 mi. N of junction of Hwy. 20 and Walker Ridge Rd. Comment
  HSC27288  Quercus durata var. durata J. P. Smith, J. O. Sawyer 1972-4-1 5178 Lake Wuntun Campground Comment
  HSC31697  Quercus durata var. durata Thomas E. Higley 1974-5-4 64 Colusa 3/4 mi. N of T junction of Indian Valley. 854 Comment
  HSC68210  Quercus durata var. durata J. P. Smith, J. O. Sawyer 1972-4-1 5164 Lake 6.2 mi. N of junction of Hwy. 20 and Walker Ridge Rd. Comment
  HSC98264  Quercus durata var. durata Pamela Grefsrud, Marty Reed, Eileen Rohmer 1990-4-15 52 Lake Indian Valley Reservoir Access Rd. 1.5 mi NE of intersection with Walker Ridge Rd. 689 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
  HSC86782  Quercus lobata Terry Hines, Ellen Purcell, N. Williams 1988-4-16 36 Lake 6.1 mi. on Walker Ridge Rd., Blue Oak Campground 732 Comment
  CAS-BOT-BC104659  Quercus wislizeni L. Blackford; S. Branch; D. Malm 1988-4-16 63 Colusa 13.8 miles of Hwy. 20 on Walker Ridge Road 975 Comment
  CAS-BOT-BC104843  Quercus wislizeni D. Haskamp; E. Sonnenblick; M. Taft 1995-5-6 47 Lake Blue Oak campground on Walker Ridge Rd. Riparian area of Benmore Canyon Creek approx. 200 m W of campsites Comment
  CAS-BOT-BC234979  Quercus wislizeni var. frutescens Ellen Dean; C. Thomsen; G. Harrington; R. Wilmarth; R. Wenk 2010-6-2 6064 Colusa On Lake County border. Walker Ridge. Along Walker Ridge Road, between Cold Spring and Buck Flat 971 Comment
  HSC27287  Quercus wislizeni var. frutescens J. P. Smith, J. O. Sawyer 1972-4-1 5177 Lake Wuntun Campground Comment
  HSC66646  Quercus wislizeni var. frutescens Cathie Goldberg, Lauren Philbrick, Lynn Kunstman, Geoff Walsh 1980-4-19 16 Lake Coldsprings Campground, along access road to Indian Valley Dam Comment
  SBBG83452  Quercus wislizeni var. frutescens C. C. Shock 1980-5-3 77 Lake Walker Ridge, 9.4 mi N of St Hwy 20 609 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
  UCD84513  Quercus wislizeni var. frutescens Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6064 Colusa Colusa County. On Lake County border. Walker Ridge. Along Walker Ridge Road, between Cold Spring and Buck Flat. 971 Comment
  UCR52369  Quercus wislizeni var. frutescens Terry Hines, Ellen Purcell, N. Williams 1988-4-16 49 Lake 13.8 mi. off Hwy 20 on Walker Ridge Road. 976 Comment
  UCD159337  Rafinesquia californica D. S. Park; E. Dean 2010-6-5 121 Colusa Walker ridge, Cold Spring Mt. roadside on exposed slope. 935 Comment
  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
  UCR138657  Rafinesquia californica A. Burgard, J. Goldsmith, J. Kalt 1996-5-3 64 Lake Blue Oak Campground. 5.3 mi west of Walker Ridge Road on Indian Reservoir Road. 57 mi east of Hwy 101 on Hwy 20 549 Comment
  HSC66592  Ranunculus hebecarpus S. Harris, B. Ferguson, M. Smith, M. Moble 1980-4-19 Lake Coldsprings Campground, along access road to Indian Valley Dam Comment
  HSC40844  Ranunculus occidentalis Richard G. Runyon 1977-4-24 25 Lake Barrel Springs Campground 701 Comment
  UCD63365  Ranunculus occidentalis Daniel Sanchez-Mata; Emin Ugurlu 2006-6-19 s.n. Lake Leesville-Barkerville. Bartlett Springs Road. Comment
  UCD82500  Ranunculus occidentalis Craig Thomsen; G. Harrington 2009-5-12 2859 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 707 Comment
  UCD82511  Ranunculus occidentalis Craig Thomsen; G. Harrington 2009-5-12 2869 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 710 Comment
  UCD83757  Ranunculus occidentalis Ellen Dean; G. Harrington, K. Mawdsley, J. Shepard 2010-5-1 5953 Colusa Colusa County. Walker Ridge. Along Walker Ridge Road, Buck Flat. 875 Comment
  CHSC115380  Ranunculus occidentalis var. occidentalis Lowell Ahart 2015-4-10 20017 Lake Along a small drainage, on the north side of Brim Road, about 3 miles west of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. 645 Comment
  JEPS124245  Ranunculus occidentalis var. occidentalis Lowell Ahart 2015-4-10 20017 Lake About 3 miles west of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. Comment
  GH51379  Rhamnus californica var. crassifolia W. L. Jepson 1920-5-23 8974 Unknown Ridge west of Bear Valley, western Colusa County Comment
  JEPS2828 Image available Rhamnus californica var. crassifolia W. L. Jepson 1920-5-23 8974 Colusa ridge w Bear Valley; ; W of Bear Valley, Colusa Co. Comment
  CHSC88560  Rhamnus tomentella subsp. crassifolia L. P. Janeway; B. Castro 2001-6-3 7096 Colusa Inner North Coast Ranges. Spring near head of Doyle Canyon on east side of Walker Ridge, about 2.7 km (air) south of Bartlett Springs Road. 799 Comment
  JEPS41964  Rhamnus tomentella subsp. crassifolia W. L. Jepson 1920-5-23 8975 Colusa hills w of Bear Valley (on grade over ridge to Indian Valley) Comment
  JEPS42053  Rhamnus tomentella subsp. crassifolia J. D. Coffman 1923-6-4 Lake between Bear Valley and Indian Valley (on Lake County side); Brim Hill Comment
  JEPS42072  Rhamnus tomentella subsp. crassifolia J. D. Coffman 1923-9-28 Lake between Bear Valley and Indian Valley (on Lake County side); Brim Hill Comment
  RSA28824  Rhamnus tomentella subsp. crassifolia A. A. Heller 1916-6-6 12359 Colusa Coast Range on the grade 3 miles W of Leesville. Comment
  UC1728659  Rhamnus tomentella subsp. crassifolia Richard Olmstead 1986-6-14 854 Lake 1.3 mi from jct of Bartlett Spring Road and Walker Ridge Road 560 Comment
  UC870844  Rhamnus tomentella subsp. crassifolia A. A. Heller 1916-6-6 12359 Colusa about 3 mi w Leesville (on the grade); Coast Range Comment
  HSC27284  Rhus aromatica J. P. Smith, J. O. Sawyer 1972-4-1 5174 Lake Wuntun Campground Comment
  HSC62926  Rhus aromatica Marla J. Carollo 1979-4-14 26 Colusa Buch Flat on Walker Ridge Rd. 884 Comment
  HSC63082  Rhus aromatica David Wheeler 1979-4-14 63 Colusa Buck Flat, Walker Ridge, on the way to Barrel Springs. 884 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
  UCD15256  Rhus diversiloba R. A. Harris 1974-5-5 051 Colusa Robberts Flat, off of Bartlett Springs road. 487 Comment
  HSC85827  Ribes californicum David Munger, Tallchief Comet, Jeff Dunk 1987-4-11 50 Lake Blue Oak Campground out Walker Ridge Rd. off Hwy. 20 E Comment
  HSC85947  Ribes californicum Michalski, Hopson, Raum 1987-4-21 47 Lake Blue Oak Campground, 8 mi. N of Hwy. 20 on Walker Ridge Rd., S and E of Indian Valley Reservoir Comment
  HSC89690  Ribes californicum William E. Avery, Mathew Henry Bergvall-Mensor, Steve Wilson 1989-4-15 Lake 7.7 mi. N of Hwy. 20, just W of Walker Ridge Rd., Blue Oak Campground 152 Comment
  HSC101455  Ribes californicum var. californicum Heather Nichols, Bryan Wassom, Jeff Ennor 1999-3-27 3 Lake Blue Oak Campground; 8 miles off Hwy. 20 on Walker Ridge Road 537 Comment
  HSC95560  Ribes californicum var. californicum A. Hove, A. Poteet, C. Sanville 1999-3-27 10 Lake Walker Ridge Rd., 1/4mi W of Blue Oak Recreation Area 537 Comment
  HSC97661  Ribes californicum var. californicum A. Miles, B. Gibbs, M. Malle 1999-3-27 6 Lake 8 mi. off Hwy. 20, 200m W on Walker Ridge Rd. from campsite, Blue Oak Recreation Area 537 Comment
  UCR138746  Ribes californicum var. californicum A. Skelly, G. McCabe, B. Bletcher 1996-3-30 05 Lake Benmore Canyon, 5.3 mi west of Walker Ridge Rd. on Indian Reservation Rd., 57 mi east of Hwy 101 on Hwy 20. Along roadside near campground entrance 549 Comment
  CAS-BOT-BC168908  Ribes malvaceum Ananda Dickie; Wendy Hooper; Rose Madrone; Kyla Waddell 1996-3-30 19 Lake 1.6 mi. west of Bear Valley rd. and Brim Rd. on Brim Rd.; 14.7 mi. on Walker Ridge Rd. to Brim Rd.; 57 mi. east of Hwy. 20. 493 Comment
  CDA11010  Ribes malvaceum G. F. Hrusa 1993-3-6 10521 Lake North Coast Biodiversity Arena; Approx. 0.5 m E of Indian Valley Res. on slopes above Indian Creek. 539 Comment
  HSC44275  Ribes malvaceum Barbara Kelly 362 Colusa 1 mi.. from intersection of Bartlett Springs Rd. and Grapevine Spring Rd. on Walker Ridge Rd. Comment
  HSC45683  Ribes malvaceum Patricia Shesgreen 1978-4-23 53 Lake Barrel Springs Campground 701 Comment
  HSC85825  Ribes malvaceum David Munger, Tallchief Comet, Jeff Dunk 1987-4-11 53 Lake Blue Oak Campground out Walker Ridge Rd. off Hwy. 20 E Comment
  UCD97118  Ribes malvaceum Ellen Dean; G. Harrington, J. Alderson 2011-4-10 6901 Colusa Along Brim Rd on east slope of Walker Ridge (Brim Rd becomes Bartlett Springs Rd). 438 Comment
  HSC94175  Ribes malvaceum var. malvaceum A. Skelly, G. McCabe, B. Bletcher 1996-3-30 4 Colusa 1.6 mi. W of Bear Valley Rd. and Brim Rd. on Brim Rd., 14.7 mi. on Walker Ridge Rd. to Brim Rd., 57 mi. E of Hwy. 101 on Hwy. 20, Leesville Comment
  HSC95340  Ribes malvaceum var. viridifolium A. Hove, A. Poteet, C. Sanville 1999-3-27 11 Lake Brim Rd. 0.5 mi off Walker Ridge Rd 661 Comment
  CHSC115201  Rigiopappus leptocladus Lowell Ahart 2015-4-28 20108 Lake By the rock barrier, Barrel Spring Meadow, about 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. 696 Comment
  HSC25614  Rigiopappus leptocladus J. P. Smith, J. O. Sawyer 1971-6-6 4731 Lake 0.75 mi. N of Clyde Mine, Walker Ridge Rd. Comment
  HSC45741  Rigiopappus leptocladus Stephen Plant 1978-4-23 222 Lake Barrel Springs Campground 701 Comment
  JEPS123899  Rigiopappus leptocladus Lowell Ahart 2015-4-28 20108 Lake About 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. Comment
  JEPS34844  Rigiopappus leptocladus W. L. Jepson 1920-5-23 8986 a Lake Indian Valley Indian Valley (ne Lake County) Comment
  CHSC88586  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
  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
  UC666171 Image available Rubus ursinus H. P. Olmo and S. W. Brown 1941-6-5 41053 Lake bog along state hgwy 20; Upper Clear Lake Region, Cold Spring; Cold Spring, Clear Lake Region, Lake Co. Comment
  UC666173  Rubus ursinus H. P. Olmo and S. W. Brown 1941-6-5 41053 Lake Cold Spring, State Highway 20 Upper Clear Lake Region; Cold Spring, upper Clear Lake region, Lake Co. 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
  UCD163344  Rumex salicifolius Craig D. Thomsen 2007-7-31 s.n. Colusa Walker Ridge. East of Eaton Springs en route to Rathburn Mine. Comment
  UCD81731  Rumex salicifolius Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5733 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. 864 Comment
  CDA24951  Salix breweri G. F. Hrusa, R. Gross 2008-5-23 17416 Lake North Coast Ranges; N. Fk. Cache Cr. +/- 1/2 mi. below spillway of Indian Valley Reservoir. 408 Comment
  UC1356325  Salix breweri Theodore J. Crovello 1965-4-26 686 Colusa along Bartlett Springs Rd. 2.5 mi w junction with Bear Valley Road 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
  UCD163852  Salix breweri Craig D. Thomsen 2000-6-7 2368 a Colusa Bear Valley. About 7 miles north of Hwy 20. Comment
  UCD81722  Salix breweri Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5726 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
  UCD163851  Salix laevigata Craig D. Thomsen 2000-6-7 2368 b Colusa Bear Valley. About 7 miles north of Hwy 20. Comment
  UCD82128  Salix laevigata Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5658 Colusa Walker Ridge. Along Walker Ridge Road, ca. 0.5 road mi N of intersection with road to Indian Valley Reservoir. Parking area, undeveloped roads, flats and slopes on W side of road. 839 Comment
  UCD163850  Salix lasiolepis Craig D. Thomsen 2000-6-7 2367 Colusa Bear Valley. About 7 miles north of Hwy 20. Comment
  HSC25719  Salvia columbariae J. P. Smith, J. O. Sawyer 1971-6-6 4719 Lake 0.75 mi. N of Clyde Mine, Walker Ridge Rd. 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
  RSA245248  Salvia columbariae J. P. Smith, J. O. Sawyer 1971-6-6 4719 Lake 0.75 mi. north of Clyde Mine; Walker Ridge Road. Comment
  UCD83684  Sambucus nigra subsp. caerulea John Rosenthal; with PLB 102 class 2010-5-2 5 Colusa East slope of Walker Ridge. Eaton Springs area. Growing one foot off of road leading into Eaton Springs Meadow. North side of the road. 716 Comment
  HSC45697  Sanicula bipinnata Christopher Knopp 1978-4-23 23 Lake Barrel Springs Campground 701 Comment
  CAS-BOT-BC230039  Sanicula bipinnatifida Craig Thomsen; G. Harrington 2009-5-12 2837 Colusa On Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 707 Comment
  CHSC33050  Sanicula bipinnatifida Joanne Spitler; Patty Powers, Debbie Stamp, Cathy Railey, Cathy Ma 1980-4-19 6 Lake Coldsprings Campground, along access road to Indian Valley Dam. On the lower slopes of the campground. Comment
  HSC66015  Sanicula bipinnatifida Teri Bartkowski, Shane Feusier, Ruth Takaki, Carol Zimmerer 1980-4-19 2 Lake Coldsprings Campground, along access road to Indian Valley Dam. Comment
  HSC66028  Sanicula bipinnatifida S. Harris, B. Ferguson, M. Smith, M. Moble 1980-4-19 Lake Along Walker Ridge Rd., 1 mi. N of junction with access road to Indian Valley Dam Comment
  UCD82459  Sanicula bipinnatifida Craig Thomsen; G. Harrington 2009-5-12 2837 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 707 Comment
  UCR138874  Sanicula bipinnatifida D. Haskamp, E. Sonnenblick, M. Taft 1995-4-2 6 Lake Blue Oak camground, 50 m west of Indian Valley Access Rd., 5 m south of Benmore Canyon Creek 541 Comment
  CDA21545  Sanicula crassicaulis G. F. Hrusa, R. Gross 2008-5-23 17418 Lake North Coast Ranges; N-facing slope above N. Fk. Cache Cr. +/- 1 mi. below spillway of Indian Valley Reservoir. 408 Comment
  CHSC101537  Sanicula crassicaulis G. F. Hrusa; R. Gross 2008-5-23 17418 Lake N-facing slope above North Fork Cache Creek +/- 1 mile below spillway of Indian Valley Reservoir. 408 Comment
  HSC69915  Sanicula crassicaulis Thomas W. Nelson, Jane P. Nelson 1978-4-2 3871 Lake Along Walker Ridge Rd., 6 mi. N of junction with Hwy. 20 Comment
  HSC91349  Sanicula crassicaulis Amy Austin, Tony LaBanca, Noreen McClintock 1990-4-14 31 Lake Blue Oak Campground on Indian Valley Reservoir Rd., 2.5 mi. NE of intersection with Walker Ridge Rd. 534 Comment
  UCD82730  Sanicula crassicaulis Craig Thomsen; G. Harrington 2009-5-14 2912 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
  HSC27158  Sanicula tuberosa J. P. Smith, J. O. Sawyer 1972-4-1 5157 Lake 6.2 mi. N of junction of Hwy. 20 and Walker Ridge Rd. Comment
  HSC69917  Sanicula tuberosa Thomas W. Nelson, Jane P. Nelson 1978-4-2 3870 Lake Along Walker Ridge Rd., 6 mi. N of junction with Hwy. 20 Comment
  HSC91398  Sanicula tuberosa Amy Austin, Tony LaBanca, Noreen McClintock 1990-4-14 32 Lake Blue Oak Campground on Indian Valley Reservoir Rd., 2.5 mi. NE of intersection with Walker Ridge Rd. 534 Comment
  UCD82528  Sanicula tuberosa Craig Thomsen; G. Harrington 2009-5-12 2884 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. East-facing hillslope above (west border) Eaton Springs meadow complex. 722 Comment
  UCR139071  Saxifraga californica E. Brower, S. Marubayashi, E. Perry 1997-3-30 025 Lake Blue Oak Campground, Indian Valley Reservoir. 2.5 mi past intersection of access road and Walker Ridge Road 274 Comment
  CDA22940  Scandix pecten-veneris G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17118 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  CHSC101551  Schedonorus arundinaceus G. F. Hrusa; R. Gross 2008-5-23 17421 Lake N-facing slope above North Fork Cache Creek +/- 1 mile below spillway of Indiana Valley Reservoir. near old resort site. 408 Comment
  UCD84582  Scleranthus annuus Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6107 Lake Walker Ridge. Along Bartlett springs road just west of Walker Ridge Rd intersection. Meadow on south side of road. 647 Comment
  CDA20428  Scribneria bolanderi G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17107 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  CHSC101528  Scribneria bolanderi G. F. Hrusa; R. Gross, L. Houser 2008-4-11 17107 Lake Open chaparral slopes with woodland on N faces immediately below Indian Valley Reservoir spillway into North Fork Cache Creek tailrace. 396 Comment
  CHSC115002  Scribneria bolanderi 2015-4-28 20107 Lake Along poor dirt road by the rock barrier, Barrel Spring Meadow, about 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. 696 Comment
  JEPS123898  Scribneria bolanderi Lowell Ahart 2015-4-28 20107 Lake About 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. Comment
  JEPS21848  Scribneria bolanderi John R. Swanson 1958-4-26 308 Colusa 1.4 mi w of Bear Valley (on road toward Bartlett Springs) 609 Comment
  UCD163345  Scribneria bolanderi Craig D. Thomsen 2000-5-11 2351 Colusa Walker Ridge. Buck Flat. 129 Comment
  UCD83760  Scribneria bolanderi Ellen Dean; G. Harrington, K. Mawdsley, J. Shepard 2010-5-1 5956 Colusa Colusa County. Walker Ridge. Along Walker Ridge Road, Buck Flat. 875 Comment
  UCD82132  Scrophularia californica Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5660 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
  UCD82729  Scutellaria Craig Thomsen; G. Harrington 2009-5-14 2910 b 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
  CDA21512  Scutellaria californica G. F. Hrusa, R. Gross 2008-5-23 17446 Lake North Coast Ranges; Slope above N. Fk. Cache Cr. +/- 1/2 mi. below spillway of Indian Valley Reservoir. 408 Comment
  CHSC101554  Scutellaria californica G. F. Hrusa; R. Gross 2008-5-23 17446 Lake N-facing slope above N. Fk. Cache Cr. +/- 1/2 mile below spillway of Indian Valley Reservoir. 408 Comment
  UCD81706  Scutellaria californica Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5714 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
  UCD82582  Scutellaria californica Craig D. Thomsen; J. Wiegand, S. Harrison, G. Harrington, A. Fulks 2008-4-22 2727 Colusa Walker Ridge. Eaton Springs, 4 mi N of Hwy 20, ca. 1.5 mi E of Walker Ridge Rd. 609 Comment
  CHSC71432  Scutellaria siphocampyloides Vernon H. Oswald; Lowell Ahart 1998-7-15 9289 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Bartlett Springs Rd. Along the edge of an intermittent stream. 640 Comment
  JEPS62909  Scutellaria siphocampyloides W. L. Jepson 1920-5-23 8992 Lake Indian Valley, ne Lake County Indian Valley 457 Comment
  JEPS93798  Scutellaria siphocampyloides Vernon H. Oswald and Lowell Ahart 1998-7-15 9289 Lake 0.8 mi s of Bartlett Springs Road (e side of county near Barrel Spring on e side of Baldy Mountain and w of Walker Ridge Road); Baldy Mountain 640 Comment
  SBBG118101  Scutellaria siphocampyloides C. Bornstein, E. Collins, R. Lutsko 2004-6-18 Lake Bartlett Springs Rd, W of Walker Ridge Rd 618 Comment
  UC725278  Scutellaria siphocampyloides A. A. Heller 1916-6-8 12386 Lake between Hough's Springs and Colusa County line Comment
  UC884232  Scutellaria siphocampyloides A. A. Heller 1916-6-8 12386 Lake between Hough's Springs and Colusa County line Comment
  UCD163353  Scutellaria siphocampyloides Craig D. Thomsen 2000-5-11 2347 Lake Walker Ridge. Cold Springs area, BLM campground. Comment
  UCD81728  Scutellaria siphocampyloides Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5730 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. 864 Comment
  UCD84579  Scutellaria siphocampyloides Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6104 Lake Walker Ridge. Along Bartlett springs road just west of Walker Ridge Rd intersection. Meadow on south side of road. 647 Comment
  HSC41832  Scutellaria tuberosa Rick Cooper 1977-4-24 46 Lake Along Walker Ridge Rd. above Barrel Springs Campground 701 Comment
  UCD83449  Scutellaria tuberosa Craig Thomsen; G. Harrington 2009-5-14 2897 Colusa Colusa County on Walker Ridge: South of spur road connecting Walker Ridge Rd and Eaton Springs. 710 Comment
  CDA26526  Sedum spathulifolium G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17112 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  HSC31404  Senecio aronicoides Maralyn O'Meara, Gary S. Lester 1974-5-4 353 Lake Walker Ridge Rd., 1.5 mi. N from junction with Little Indian Valley Rd., 0.2 mi. S from Cold Spring Mtn. 1098 Comment
  UCD82734  Senecio aronicoides Craig Thomsen; G. Harrington 2009-5-14 2915 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. 762 Comment
  GH11914  Senecio clevelandii D. Cleveland 1882-06-01 - 1882-07-01 Unknown Indian Valley Comment
  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
  RSA700358  Senecio clevelandii L. P. Janeway 2001-6-6 7112 Colusa Eaton Springs, about 2.4 km. east of Walker Ridge Road. 713 Comment
  SEINET13710303  Senecio clevelandii Lowell William Ahart, Lowell William Ahart 2003-1 10393 Lake Serpentine Area at Barrell Spring, 2 Mi. W of Bear Valley (39 Deg 08'51.2"N, 122 Deg 28'41.5"W) 1302 Ft. 397 Comment
  UCR37893  Senecio greenei C. G. Phillips, L. Cole, S. A. Haultain, K. B. Barrows 1984-4-28 19 Lake Walker Ridge, Indian Valley Access Road, 1.1 mi. north of Blue Oak Campground, Wilbur Springs 15' Q. 854 Comment
  CDA21517  Senecio vulgaris G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17092 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  CHSC70984  Sidalcea diploscypha Vernon Oswald; Lowell Ahart 1998-5-7 9003 Colusa Bartlett Springs Rd. 2.1 mi west of Bear Valley Rd., 0.8 mi east of Sawtelle Valley and Grapevine Flat roads. 524 Comment
  CHSC71437  Sidalcea diploscypha Vernon H. Oswald; Lowell Ahart 1998-7-15 9293 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Bartlett Springs Rd. 640 Comment
  HSC87050  Sidalcea diploscypha L. Blackford, S. Branch, D. Malm 1988-4-16 67 Colusa 2 mi. W on Brim Rd. from corner of Brim Rd. and Bear Valley Rd. 518 Comment
  JEPS94196  Sidalcea diploscypha Vernon Oswald and Lowell Ahart 1998-5-7 9003 Colusa Bartlett Springs Rd. 2.1 mi. w. of Bear Valley Rd., 0.8 mi. e. of Sawtelle Valley and Grapevine Flat Rds. 524 Comment
  JEPS97937  Sidalcea diploscypha Vernon H. Oswald 1998-7-15 9293 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Bartlett Springs Rd. 640 Comment
  UCD82533  Sidalcea diploscypha Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5685 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
  UCR37889  Sidalcea diploscypha C. G. Phillips, K. B. Barrows, L. Cole, S. A. Haultain 1984-4-28 20 Lake Walker Ridge, Indian Valley Access Road, 1.1 mi. north of Blue Oak Campground, Wilbur Springs 15' Q. 854 Comment
  UCR39817  Sidalcea diploscypha K. Faber, Scott LaChance, Mike Rekart 1984-4-28 9 Lake Indian Valley access road, NE of Clearlake. 854 Comment
  UCR52397  Sidalcea diploscypha N. Williams, Terry Hines, Ellen Purcell 1988-4-16 53 Colusa 2 mi W on Brim Rd. from Bear Valley Rd. intersection 518 Comment
  POM298624  Sidalcea glaucescens Lincoln Constance, R. H. Shan 1946-6-2 3074 Lake Bartlett Springs Road, 4.5 miles southwest of Leesville. 549 Comment
  JEPS50057  Sidalcea hartwegii W. L. Jepson 1920-5-23 8987 Lake Indian Valley Indian Valley (ne Lake Co.) Comment
  RSA42336  Sidalcea hartwegii Lincoln Constance, R. H. Shan 1946-6-2 3074 Lake Bartlett Springs Road, 4.5 miles southwest of Leesville. 549 Comment
  UCD163840  Sidalcea hartwegii Craig D. Thomsen 2001-4-12 2470 Colusa Bear Valley. About 7 miles north of Hwy 20. Comment
  UCD82538  Sidalcea hartwegii Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5691 Colusa Walker Ridge. Along Walker Ridge Road, ca. 0.5 road mi N of intersection with road to Indian Valley Reservoir. Parking area, undeveloped roads, flats and slopes on W side of road. 817 Comment
  UC735122  Sidalcea hirsuta Lincoln Constance and Ren Hwa Shan 1946-6-2 3074 Lake Bartlett Springs Road 4.5 mi sw Leesville; sw of Leesville 548 Comment
  UC584175  Sidalcea keckii J. Clausen 1935-5-20 1013 Colusa on Bartlett Springs road 18 mi w Williams; w of Williams Comment
  UC120153  Silene californica D. C. 1882-7-1 Lake Indian Valley Comment
  UCR37526  Silene californica P. Williams, B. Kearney, M. Malamus 1984-4-28 7 Lake Blue Oak Campground 610 Comment
  UCD163341  Silene campanulata Craig D. Thomsen 2009-5-3 2812 Lake Walker Ridge, just south of Cold Spring Mountain 6.5 miles north of Hwy 20. Vicinity of Walker Ridge Rd. Along fire break road, just south of guard rail. View of Indian Valley Reservoir to the north. 1066 Comment
  HSC41944  Silene campanulata subsp. glandulosa Richard G. Runyon 1977-4-24 29 Lake Barrel Springs Campground 701 Comment
  UCD81714  Silene campanulata subsp. glandulosa Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5720 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
  HSC66653  Silene laciniata subsp. californica Cathie Goldberg, Lauren Philbrick, Lynn Kunstman, Geoff Walsh 1980-4-19 7 Lake Coldsprings Campground, along access road to Indian Valley Dam. Comment
  HSC85786  Silene laciniata subsp. californica Rob Marheine, Tim Tilghman, Bruce Delgado 1987-4-10 Lake 8 mi. N of Hwy. 20 on Walker Ridge Rd., Blue Oaks Campground Comment
  HSC85826  Silene laciniata subsp. californica David Munger, Tallchief Comet, Jeff Dunk 1987-4-11 47 Lake Blue Oak Campground out Walker Ridge Rd. off Hwy. 20 E Comment
  HSC89786  Silene laciniata subsp. californica Pat Daly, Rudy Galindo 1988-4-16 43 Lake 6.1 mi. on Walker Ridge Rd. from Hwy. 20 to Blue Oak Campground 732 Comment
  CHSC114941  Sisyrinchium bellum Lowell Ahart 2015-4-10 20012 Colusa In a small meadow, on the south side of Brim Road, about 2 miles west of the intersection of Bear ValleyRoad and Brim Road, about 17 miles (air) west of Williams. Meadow in Chaparral. 500 Comment
  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
  HSC45520  Sisyrinchium bellum M. Alcasas 1978-4-23 53 Lake Barrel Springs Campground. 701 Comment
  HSC66057  Sisyrinchium bellum Cathie Goldberg, Lynn Kunstman, Lauren Philbrick, Geoff Walsh 1980-4-19 43 Lake Along Walker Ridge Rd., 1 mi. N of its junction with access road to Indian Valley Dam Comment
  JEPS124213  Sisyrinchium bellum Lowell Ahart 2015-4-10 20012 Colusa About 2 miles west of the intersection of Bear Valley Road and Brim Road, about 17 miles (air) west of Williams. Comment
  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
  UCR139084  Sisyrinchium bellum A. Skelly, G. McCabe, B. Bletcher 1996-5-4 37 Colusa 8.4 mi north of Indian Res. Road, on Walker Ridge Road; 57 mi east of Hwy 101 on Hwy 20 701 Comment
  CHSC32938  Solanum parishii Debbie Stamp; J. Spilter, C. Railey, P. Powers, C. Macdonald 1980-4-19 4 Lake Coldsprings Campground, along access road to Indian Valley Dam. On the lower slopes of the campground. Comment
  HSC41467  Solanum parishii Richard Runyon 1977-4-24 35 Colusa Along Walker Ridge Rd. above Barrel Springs Campground 701 Comment
  HSC41848  Solanum parishii N. G. Sugihara 1977-4-24 38 Colusa 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
  HSC66660  Solanum parishii D. Boyd, M. Eichelberger, Tim Messick, T. Ranker 1980-4-19 1 Lake Coldsprings Campground, along access rd. to Indian Valley Dam Comment
  HSC85796  Solanum parishii Rob Marheine, Bruce Delgado, Tim Tilgham 1987-4-10 Lake 8 mi. N of Hwy. 20 on Walker Ridge Rd.; 50 ft off W side of rd., opposite Blue Oak Campground Comment
  HSC86899  Solanum parishii L. Blackford, S. Branch, D. Malm 1988-4-16 39 Lake 6.1 mi. on Walker Ridge Rd. off Hwy. 20 at Blue Oak Campground 732 Comment
  UCD126971  Solanum parishii Cathie Goldberg; Lauren Philbrick, Lynn Kunstman, Geoff Walsh 1980-4-19 s.n. Lake Coldsprings Campground, along access road to Indian Valley Dam. Comment
  UCD84438  Solanum parishii Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6048 Colusa Walker Ridge. Along Walker Ridge Road, N of turnoff to Indian Valley Reservoir but S of Til Jones Spring. Many old undeveloped roads here. 817 Comment
  UCD82441  Solidago velutina subsp. californica Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5668 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
  UCD82104  Sonchus asper Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5631 Lake 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. 821 Comment
  CHSC101235  Stachys ajugoides var. rigida G. F. Hrusa; R. Gross 2008-5-23 17445 Lake N-facing slope above N. Fork Cache Creek +/- 1/2 mile below spillway of Indian Valley Reservoir. 408 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
  CHSC71433  Stachys albens Vernon H. Oswald; Lowell Ahart 1998-7-15 9268 Colusa Bartlett Springs Rd. 1.6 mi west of Bear Valley Rd. 487 Comment
  CDA21525  Stachys rigida G. F. Hrusa, R. Gross 2008-5-23 17445 Lake North Coast Ranges; Slope above N. Fk. Cache Cr. +/- 1/2 mi. below spillway of Indian Valley Reservoir. 408 Comment
  UCD112598  Stellaria nitens Christopher Mallek 2008-4-17 WR2- 2 Colusa Walker Ridge. Border of Colusa and Lake Counties. 802 Comment
  UCD84552  Stephanomeria Ellen Dean; C. Thomsen, T. Hansen, and windfarm meeting 2010-6-11 6150 Colusa Walker Ridge. Along Walker Ridge Road. Til Jones spring area on W side of road. Ca 6.5 road miles N of junction with Hwy 20. W side of road. 833 Comment
  GH422017  Streptanthus breweri L. Constance & R. H. Shan 1946-6-2 3075 Unknown Bartlett Springs road 4.5 miles southwest of Leesville 548 Comment
  JEPS96910  Streptanthus breweri Dean W. Taylor 1998-6-23 16706 Colusa Walker Ridge, along BLM access road 929 Comment
  UCD110407  Streptanthus breweri Daniel Slakey; CNPS volunteers 2011-6-12 3 Colusa Walker Ridge. Brim Rd., 1/4 mile E of Walker Ridge Rd. Population extends about 1 mile farther east. 647 Comment
  UCD158696  Streptanthus breweri James A. Neilson Jr. 1983-6-18 4101 Lake Walker Ridge. Crest located 0.5 mi S of Cold Spring Mtn. 1066 Comment
  UCD164316  Streptanthus breweri Ryan O'Dell 2010-7-1 s.n. Colusa UTM zone 10, 545440 4334598. [UTM coordinates place this location on east side of Walker Ridge along Bartlett Springs Road.] Comment
  CHSC71421  Streptanthus breweri var. breweri Vernon H. Oswald; Lowell Ahart 1998-7-15 9301 Lake East side of county on Walker Ridge Rd. 6.2 mi south of Bartlett Springs Rd., 8.3 mi north of Hwy. 20. 1036 Comment
  CHSC98702  Streptanthus breweri var. breweri L. P. Janeway 2007-6-17 9057 Lake Inner North Coast Ranges. Along dirt road 0.3 km northwest of Bartlett Springs Road and Indian Valley Reservoir; about 5.6 air km east of Hough Springs. 500 Comment
  JEPS93793  Streptanthus breweri var. breweri Vernon H. Oswald and Lowell Ahart 1998-7-15 9301 Lake e side of county on Walker Ridge Road 6.2 mi s of Bartlett Springs Road (8.3 mi n of Highway 20); Walker Ridge Road 1036 Comment
  UC1492726  Streptanthus breweri var. breweri Freed W. Hoffman 1950-6-30 3435 Lake e Indian Valley (14.5 mi e of Bartlett Springs); North Coast Ranges, Complexion Creek Comment
  UC735119  Streptanthus breweri var. breweri Lincoln Constance and Ren Hwa Shan 1946-6-2 3075 Lake Bartlett Springs rd 4.5 mi sw Leesville 548 Comment
  UCD82160  Streptanthus breweri var. breweri Ellen Dean; G. Harrington, C. Thomsen,R. Wilmarth,Chiao-Yi Cheng 2009-5-20 5693 Colusa Walker Ridge. Til Jones Spring area along Walker Ridge Road. 833 Comment
  UCD82450  Streptanthus breweri var. breweri Ellen Dean; G. Harrington, C. Thomsen,R. Wilmarth,Chiao-Yi Cheng 2009-5-20 5693 Colusa Walker Ridge. Til Jones Spring area along Walker Ridge Road. 833 Comment
  CHSC71422  Streptanthus drepanoides Vernon H. Oswald; Lowell Ahart 1998-7-15 9275 Colusa Bartlett Springs Rd. 2.6 mi west of Bear Valley Rd., 0.3 mi east of Sawtelle Valley and Grapevine Flat roads. On a roadcut. 624 Comment
Read comments
Jul 24 2018
  JEPS93866  Streptanthus drepanoides Vernon H. Oswald and Lowell Ahart 1998-7-15 9275 Colusa Bartlett Springs Road 2.6 mi w of Bear Valley Road (0.3 mi e of Sawtelle Valley and Grapevine Flat Roads) 624 Comment
Read comments
Jul 24 2018
  CAS-BOT-BC87117  Streptanthus glandulosus subsp. glandulosus Barbara Sherfey 1963-3-1 s.n. Lake 2 miles east (up the canyon) from Indian Valley on road to Bartlett Springs. Comment
  JEPS16222  Streptanthus glandulosus subsp. glandulosus Rimo Bacigalupi and Arthur Holmgren 1950-4-26 3183 Colusa burned slope just w base of grade to Indian Valley (Bartlett Mt. Road) (just w of Bear Valley); Inner North Coast Ranges Comment
  UC1053422  Streptanthus glandulosus subsp. glandulosus Rimo Bacigalupi and Arthur Holmgren 1950-4-26 3183 Colusa burned slope just w base of the grade to Indian Valley (Bartlett Mt. Rd.) (just w of Bear Valley); Inner North Coast Ranges Comment
  UCR71158  Streptanthus morrisonii subsp. morrisonii L. F. LaPre 1986-5-30 s.n. Colusa Bartlet Springs Rd. 0.3 mi east of Lake Co. line 622 Comment
  UCR141627  Styrax officinalis var. californicus Roman Gankin 1959-4-19 330 Colusa Along road to Walker Ridge from Bear Valley Comment
  CHSC71005  Styrax officinalis var. redivivus Vernon Oswald; Lowell Ahart 1998-5-7 8996 Colusa Bartlett Springs Rd. 1.6 mi west of Bear Valley Rd. 487 Comment
  JEPS16208  Styrax officinalis var. redivivus Rimo Bacigalupi and Arthur Holmgren 1950-4-26 3187 Lake on Bartlett Mt. Road grade up over first ridge w Bear Valley (just w of Colusa-Lake County line); Inner North Coast Ranges, w of Bear Valley Comment
  UC1053471  Styrax officinalis var. redivivus Rimo Bacigalupi and Arthur Holmgren 1950-4-26 3187 Lake on Bartlett Mt. Road grade up over first ridge w Bear Valley (just w of Colusa-Lake County line); Inner North Coast Ranges Comment
  HSC60473  Styrax redivivus J. P. Smith 1977-4-24 9039 Colusa Along Walker Ridge Rd. above Barrel Springs Campground 701 Comment
  HSC92105  Styrax redivivus John Cromwell, Julie Schneider, A. Thoele 1994-4-23 42 Lake Walker Ridge, below intersection of Walker Ridge Rd. and Bartlett Springs Rd. about 1.0 mi. down Brim Grade 610 Comment
  POM332465  Styrax redivivus J. P. Smith 1977-4-24 9039 Colusa Along Walker Ridge Road above Barrel Springs Campground. 701 Comment
Read comments
Jul 31 2014
  RSA388855  Styrax redivivus Clinton C. Shock 1980-5-3 68 Colusa 2 miles W of base of Bear Valley, 14.6 miles north of State Hwy 20. East of Walker Ridge. 488 Comment
  UCD119103  Styrax redivivus Roman Gankin 1965-5-5 518 Colusa On Bartlett Springs Road from Bear Valley, ca. 2 miles west of junction with Lodoga Road. Comment
  UCD163316  Styrax redivivus Craig D. Thomsen 1997-4-13 1905 Colusa Bear Valley. About 6 miles north of Hwy 20. Vicinity of Trout Creek, north of Deadshot Canyon. Comment
  UCD163844  Styrax redivivus Craig D. Thomsen 2000-6-1 s.n. Colusa Bear Valley. About 7 miles north of Hwy 20. Comment
  UCD18644  Styrax redivivus Roman Gankin 1959-4-19 330 Colusa along road to Walker Ridge from Bear Valley. Comment
  UCD18702  Styrax redivivus Roman Gankin 1959-4-19 330 Colusa along road to Walker Ridge from Bear Valley. Comment
  UCD82119  Taeniatherum caput-medusae Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5647 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
  HSC48464  Taraxacum erythrospermum J. P. Smith 1978-4-23 9751 Lake Barrel Springs Campgound 701 Comment
  CDA21528  Tauschia kelloggii G. F. Hrusa, R. Gross 2008-5-23 17442 Lake North Coast Ranges; N-facing slope above N. Fk. Cache Cr. +/- 1/2 mi. below spillway of Indian Valley Reservoir. 408 Comment
  CHSC101234  Tauschia kelloggii G. F. Hrusa; R. Gross 2008-5-23 17442 Lake N-facing slope above N. Fork Cache Creek +/- 1/2 mile below spillway of Indian Valley Reservoir. 408 Comment
  UCD163838  Tetrapteron graciliflorum Craig D. Thomsen 2001-4-12 2467 Colusa Bear Valley. About 7 miles north of Hwy 20. Comment
  CAS-BOT-BC240289  Thalictrum fendleri Craig D. Thomsen; J. Wiegand; S. Harrison; G. Harrington; A. Fulks 2008-4-22 2730 Colusa Walker Ridge. Eaten Springs, 4 mi N of Hwy 20, ca. 1.5 mi E of Walker Ridge Rd. 609 Comment
  UCD81708  Thalictrum fendleri var. polycarpum Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5715 Colusa Walker Ridge. Along Walker Ridge Road. Til Jones Spring area on W side of road, ca. 6.5 road mi N of junction with Hwy 20. W side of road. 833 Comment
  UCD81709  Thalictrum fendleri var. polycarpum Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5715 Colusa Walker Ridge. Along Walker Ridge Road. Til Jones Spring area on W side of road, ca. 6.5 road mi N of junction with Hwy 20. W side of road. 833 Comment
  UCD82585  Thalictrum fendleri var. polycarpum Craig D. Thomsen; J. Wiegand, S. Harrison, G. Harrington, A. Fulks 2008-4-22 2730 Colusa Walker Ridge. Eaton Springs, 4 mi N of Hwy 20, ca. 1 mi E of Walker Ridge Rd. 609 Comment
  CHSC106243  Thelypodium brachycarpum B. Castro; L. P. Janeway 2001-6-3 1259 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
  CDA20427  Thysanocarpus curvipes G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17102 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  HSC47456  Thysanocarpus curvipes J. P. Smith 1978-4-23 9749 Lake Barrel Springs Campgound 701 Comment
  UCR138876  Thysanocarpus curvipes J. Marshall, J. Savage, L. Allison 1997-3-29 9 Lake Blue Oak Campground, Mount Diablo Meridian. Indian Valley Reservoir access road, 2.5 mi past intersection of access road and Walker Ridge Rd 274 Comment
  UCR37570  Thysanocarpus curvipes var. elegans Michelle A. Strull, C. Houseman, L. Linstedt 1984-4-28 4 Lake 23 mi. NE of Clearlake Oaks via Hwy 20 and Walker Ridge Road 610 Comment
  CDA21522  Tonella tenella G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17090 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  UCD82121  Torilis arvensis Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5649 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
  CAS-BOT-BC234976  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
  HSC25608  Torreya californica J. P. Smith, J. O. Sawyer 1971-6-6 4739 Lake Bulk Collection # 32 Comment
  SEINET3876239 Image available Torreya californica James P. Smith, John Sawyer 1972-2-12 5053 Lake Walker Ridge Road; south of Baldy Mountain near the boundary of Lake and Colusa County.; 0 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
  UCD112603  Toxicoscordion Christopher Mallek 2008-4-17 s.n. Colusa Walker Ridge. Border of Colusa and Lake Counties. 802 Comment
  UCD81861  Toxicoscordion venenosum Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5744 a Lake Walker Ridge. Picnic area near Cold Spring. 912 Comment
  UCD82103  Tragopogon dubius Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5630 Lake 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. 821 Comment
  UCD84564  Tragopogon dubius Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6089 Lake Walker Ridge. Picnic Area near wetland/marsh. 899 Comment
  UCD84566  Tragopogon porrifolius Ellen Dean; C. Thomsen, G. Harrington, Davis Botanical Society 2010-6-5 6091 Lake Walker Ridge. Picnic Area near wetland/marsh. 899 Comment
  UCD82530  Trichostema Craig Thomsen; G. Harrington 2009-5-12 2886 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. East- facing hillslope above (west border) Eaton Springs meadow complex. 710 Comment
  UCD82617  Trichostema Craig Thomsen; G. Harrington 2009-5-12 2886 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. East- facing hillslope above (and west border of) Eaton Springs meadow complex. 710 Comment
  CHSC71434  Trichostema laxum Vernon H. Oswald; Lowell Ahart 1998-7-15 9279 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Bartlett Springs Rd. 640 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
  JEPS94753  Trichostema laxum Vernon H. Oswald and Lowell Ahart 1998-7-15 9279 Lake 0.8 mi s of Bartlett Springs Road (e side of County near Barrel Spring on e side of Baldy Mountain and w of Walker Ridge Road); Baldy Mountain 640 Comment
  RSA134397  Trichostema laxum Harlan Lewis, M. Lewis 1951-7-11 1241 Lake 9.2 miles E of Allen Springs. Comment
  RSA700359  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. 703 Comment
  UC1183604  Trichostema laxum H. and M. Lewis 1951-7-11 1241 Lake 9.2 mi E of Allen Springs Comment
  UCD125876  Trichostema laxum Vernon H. Oswald; Lowell Ahart 1998-7-15 9279 Lake East side of county near Barrel Spring on the east side of Baldy Mountain and west of Walker Ridge Rd. 0.8 mi south of Barlett Springs Rd. 640 Comment
  UCLA30920  Trichostema laxum H. and M. Lewis 1951-7-11 1241 Lake 9.2 mi E of Allen Springs Comment
  CDA26535  Trifolium albopurpureum G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17097 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  UCD82138  Trifolium albopurpureum Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5678 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
  CHSC70981  Trifolium albopurpureum var. dichotomum Vernon Oswald; Lowell Ahart 1998-5-7 9001 Colusa Bartlett Springs Rd, 2.1 mi west of Bear Valley Rd., 0.8 mi east of Sawtelle Valley and Grapevine Flat roads. 524 Comment
  JEPS94797  Trifolium albopurpureum var. dichotomum Vernon Oswald and Lowell Ahart 1998-5-7 9001 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
  CDA22946  Trifolium bifidum var. bifidum G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17115 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  CHSC101536  Trifolium bifidum var. bifidum G. F. Hrusa; R. Gross, L. Houser 2008-4-11 17115 Lake Open chaparral slopes with woodland on N faces immediately below Indian Valley Reservoir spillway into North Fork Cache Creek tailrace. 396 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
  HSC95601  Trifolium bifidum var. bifidum A. Skelly, G. McCabe, B. Bletcher 1996-5-4 48 Lake Benmore Canyon, 5.3 mi. W of Walker Ridge on Indian Res. Rd., 57 mi. E of Hwy. 101 on Hwy. 20, Blue Oak Campground 549 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
  CHSC115393  Trifolium bifidum var. decipiens Lowell Ahart 2015-4-10 20010 Colusa On the south side of Brim Road, about 2 miles west of the intersection of Bear Valley Road and Brim Road, about 17 miles (air) west of Williams. 500 Comment
  JEPS124242  Trifolium bifidum var. decipiens Lowell Ahart 2015-4-10 20010 Colusa About 2 miles west of the intersection of Bear Valley Road and Brim Road, about 17 miles (air) west of Williams. Comment
  HSC87052  Trifolium dichotomum L. Blackford, S. Branch, D. Malm 1988-4-16 59 Colusa 6.1 mi. on Walker Ridge Rd. off Hwy. 20 at Blue Oak Campground 732 Comment
  HSC89691  Trifolium gracilentum var. gracilentum William E. Avery, Mathew Henry Bergvall-Mensor, Steve Wilson 1989-4-15 Lake Blue Oak Campground, 7.7 mi. N of Hwy. 20 just W of Walker Ridge Rd. 152 Comment
  HSC87053  Trifolium hirtum L. Blackford, S. Branch, D. Malm 1988-4-16 38 Lake 6.1 mi. on Walker Ridge Rd. off Hwy. 20 at Blue Oak Campground 732 Comment
  HSC92507  Trifolium hirtum D. Haskamp, E. Sonnenblick, M. Taft 1995-5-6 47 Lake Blue Oak Campground, on Walker Ridge Rd., 200 m W of campsites along Benmore Canyon Creek. 537 Comment
  HSC95465  Trifolium hirtum A. Skelly, G. McCabe, B. Bletcher 1996-5-4 43 Lake Benmore Canyon, 5.3 mi. W of Walker Ridge on Indian Res. Rd., 57 mi. E of Hwy. 101 on Hwy. 20, Blue Oak Campground 549 Comment
  UCD82100  Trifolium microcephalum Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5627 Lake 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. 821 Comment
  UCD82722  Trifolium microcephalum Craig Thomsen; G. Harrington 2009-5-14 2905 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
  CDA21502  Trifolium obtusiflorum G. F. Hrusa, R. Gross 2008-5-23 17437 Lake North Coast Ranges; Above N. Fk. Cache Cr. +/- 1 mi. below spillway of Indian Valley Reservoir. adj. to old resort buildings. 408 Comment
  CHSC101225  Trifolium obtusiflorum G. F. Hrusa; R. Gross 2008-5-23 17437 Lake N-facing slope above North Fork Cache Creek +/- 1mile below spillway of Indian Valley Reservoir adjacent to old resort buidlings. 408 Comment
  CHSC71425  Trifolium obtusiflorum Vernon H. Oswald; Lowell Ahart 1998-7-15 9302 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
  CHSC84225  Trifolium obtusiflorum Lowell Ahart 2003-7-14 10400 Lake Along a stream, on the west side of the second causeway going southwest on Bartlett Springs Road, Indian Valley Reservoir. 449 Comment
  JEPS104095  Trifolium obtusiflorum Lowell Ahart 2003-7-14 10400 Lake Along a stream, on the w side of the second causeway going sw on Bartlett Springs Rd, Indian Valley Reservoir. 449 Comment
  JEPS94683  Trifolium obtusiflorum Vernon H. Oswald and Lowell Ahart 1998-7-15 9302 Colusa Walker Ridge Rd. 8.2 mi s Bartlett Springs Rd. (6.3 mi n of Hwy 20, w side of county) 792 Comment
  JEPS94737  Trifolium obtusiflorum Vernon H. Oswald and Lowell Ahart 1998-7-15 9302 Colusa 6.3 mi n of Highway 20 (w side of county on Walker Ridge Road 8.2 mi s of Bartlett Springs Road); Walker Ridge Road 792 Comment
  SEINET516297  Trifolium obtusiflorum Vernon H. Oswald 1998-7-15 9302 Colusa W side of county on Walker Ridge Rd. 8.2 mi S of Bartlett Springs Rd., 6.3 mi N of Hwy 20. 792 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
  CDA22939  Trifolium willdenovii G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17098 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  HSC66052  Trifolium willdenovii C. McDonald, C. Raley, P. Powers, J. Spitler, D. Stamp 1980-4-19 33 Lake Along Walker Ridge Rd. 0.5 mi. N of junction with access road to Indian Valley Dam Comment
  UCD82581  Triglochin maritima Craig D. Thomsen; J. Wiegand, S. Harrison, G. Harrington, A. Fulks 2008-4-22 2729 Colusa Walker Ridge. Eaton Springs, 4 mi N of Hwy 20, ca. 1.5 mi E of Walker Ridge Rd. 609 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
  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
  CHSC94927  Triteleia laxa K. Lang; Classmates 2005-4-2 23 Lake Walker Ridge. 1000 Comment
  HSC60456  Triteleia laxa J. P. Smith 1977-4-24 9032 Lake Barrel Springs Campground 701 Comment
  HSC66054  Triteleia laxa D. Boyd, M. Eichelberger, Tim Messick, Tom Ranker 1980-4-19 39 Lake Along Walker Ridge Rd., 1 mi. N of junction with access to Indian Valley Dam Comment
  UCD82535  Triteleia laxa Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5687 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
  UCR37944  Triteleia laxa Brian Kearney, P. Williams, M. Malamus 1984-4-28 3 Lake Blue Oak Campground 610 Comment
  CHSC71456  Triteleia peduncularis Vernon H. Oswald; Lowell Ahart 1998-7-15 9272 Colusa Bartlett Sptings Rd. 1.6 mi west of Bear Valley Rd. 487 Comment
  CHSC71457  Triteleia peduncularis Vernon H. Oswald; Lowell Ahart 1998-7-15 9292 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. And west of Walker Ridge Road 0.8 mi south of Bartlett Springs Rd. 640 Comment
  JEPS94689  Triteleia peduncularis Vernon H. Oswald and Lowell Ahart 1998-7-15 9292 Lake e side of county near Barrel Spring (on e side of Baldy Mountain and w of Walker Ridge Road 0.8 mi s of Bartlett Springs Road); Baldy Mountain 640 Comment
  JEPS94757  Triteleia peduncularis Vernon H. Oswald and Lowell Ahart 1998-7-15 9292 Lake e side of county near Barrel Spring (on e side of Baldy Mountain and w of Walker Ridge Road 0.8 mi s of Bartlett Springs Road); Baldy Mountain 640 Comment
  RSA466276  Triteleia peduncularis L. F. LaPre, K. Campbell 1987-6-29 s.n. Lake Barrel Springs Camp, NE of Clear Lake at Colusa Co. line, on Walker Pass Road Comment
  RSA489229  Triteleia peduncularis James L. Reveal 1988-6-2 6989 Lake Barrel Springs area just west of the Walker Ridge Road, 1 mile south of the Bartlett Springs Road and about 15 miles north of Hwy 20. 762 Comment
  SBBG118112  Triteleia peduncularis C. Bornstein, E. Collins, R. Lutsko 2004-6-18 Lake Bartlett Springs Rd, W of Walker Ridge Rd 618 Comment
  SD6387  Triteleia peduncularis Daniel Cleveland 1882-6-13 Lake Indian Valley. Comment
  UC143029  Triteleia peduncularis D. Cleveland 1882-6-13 Lake Indian Valley Comment
  UCD81862  Triteleia peduncularis Ellen Dean; K. Mawdsley,G. Harrington,R. Wilmarth,B. Rice,E. Salvia 2009-5-27 5745 Lake Walker Ridge. Picnic area near Cold Spring. 912 Comment
  UCR50154  Triteleia peduncularis L. F. LaPre, K. Campbell 1987-6-29 s.n. Lake Inner North Coast Ranges, Barrel Spring Camp, NE of Clear Lake at Colusa Co. line, on Walker Ridge Rd Comment
  CAS-BOT-BC91119  Umbellularia californica Jeanne McFarland; Kathie Meyer; Anne Mullenniex 1995-4-1 38 Lake Walker Ridge. Blue Oak Campground off of Indian Reservoir Road. Found growing about 3 meters SE of campground sign. 536 Comment
  HSC27282  Umbellularia californica J. P. Smith, J. O. Sawyer 1972-4-1 5171 Lake 8.8 mi. N of junction of SR 20 and Walker Ridge Rd. Comment
  UCD83752  Umbellularia californica Ellen Dean; G. Harrington, K. Mawdsley, J. Shepard 2010-5-1 5949 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
  HSC45706  Uropappus lindleyi Sheila Logan 1978-4-23 103 Lake Barrel Springs Campground. 701 Comment
  HSC46386  Uropappus lindleyi Catherine Chin 1978-4-23 46 Lake Barrel Springs Campground. 701 Comment
  HSC48463  Uropappus lindleyi J. P. Smith 1978-4-23 9752 Lake Barrel Springs Campgound 701 Comment
  UCD82163  Uropappus lindleyi Ellen Dean; G. Harrington, C. Thomsen,R. Wilmarth,Chiao-Yi Cheng 2009-5-20 5695 Colusa Walker Ridge. Til Jones Spring area along Walker Ridge Road. 833 Comment
  CHSC84245  Verbena lasiostachys var. lasiostachys Lowell Ahart 2003-7-14 10407 Lake Along a stream, on the east side of the second causeway going southwest on Bartlett Springs Road, Indian Valley Reservoir. 449 Comment
  JEPS104389  Verbena lasiostachys var. lasiostachys Lowell Ahart 2003-7-14 10407 Lake Along a stream, on the e side of the second causeway going sw on Bartlett Springs Rd, Indian Valley Reservoir. 449 Comment
  CHSC71454  Verbena lasiostachys var. scabrida Vernon H. Oswald; Lowell Ahart 1998-7-15 9304 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 a meadow. 792 Comment
  JEPS93808  Verbena lasiostachys var. scabrida Vernon H. Oswald and Lowell Ahart 1998-7-15 9304 Lake w side of county on Walker Ridge Road 8.2 mi s of Bartlett Springs Road (6.3 mi n of Highway 20); Walker Ridge Road 792 Comment
  UCD82098  Verbena lasiostachys var. scabrida Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5625 Lake 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. 821 Comment
  UCD83716  Vicia sativa subsp. nigra Joseph Schlottman; with PLB 102 class 2010-5-2 2 Colusa East slope of Walker Ridge. Eaton Springs. Adjacent to main creek. 710 Comment
  CDA11393  Viola douglasii G. F. Hrusa, K. van Katwyk 1995-4-22 12113 Lake Inner North Coast Ranges; Bartlett Springs road approx. 1/2 m. W of intersection with Walker Ridge Rd. Comment
  CHSC115198  Viola douglasii Lowell Ahart 2015-4-28 20095 Lake In the meadow, about 150 yards west of Barrel Spring Meadow, about 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intesection of Bear Valley Road and Brim Road, about 18 miles(air) west of Williams. 696 Comment
  CHSC49457  Viola douglasii Vernon Oswald 1986-5-12 2020 Lake Brim Rd. (Barlett Springs Rd.) 0.2 mi w of the road to Barell Spring. 624 Comment
  HSC27160  Viola douglasii J. P. Smith, J. O. Sawyer 1972-4-1 5169 Lake 6.5 mi. N of junction of S.R. 20 and Walker Ridge Rd. Comment
  HSC31310  Viola douglasii Carter Schleicher 1974-5-4 26 Colusa 0.75 mi. from T junction of Walker Ridge Rd. and Indian Valley, near Clyde Mine 854 Comment
  HSC41844  Viola douglasii N. G. Sugihara 1977-4-24 35 Lake Barrel Springs Campground 701 Comment
  HSC41945  Viola douglasii Richard G. Runyon 1977-4-24 26 Lake Barrel Springs Campground 701 Comment
  HSC44455  Viola douglasii R. York 1978-4-23 142 Lake Barrel Springs Campground. 701 Comment
  HSC45518  Viola douglasii M. Alcasas 1978-4-23 52 Lake Barrel Springs Campground. 701 Comment
  HSC45744  Viola douglasii Stephen Plant 1978-4-23 225 Lake Barrel Springs Campground 701 Comment
  HSC66062  Viola douglasii C. Macdonald, P. Powers, C. Raley, J. Spitler, D. Stamp 1980-4-19 37 Lake Along Walker Ridge Rd., 1.0 mi. N of junction with access road to Indian Valley Dam. Comment
  HSC69914  Viola douglasii Thomas W. Nelson, Jane P. Nelson 1978-4-2 3872 Lake Along Walker Ridge Rd., 6 mi. N of junction with Hwy. 20 Comment
  JEPS123902  Viola douglasii Lowell Ahart 2015-4-28 20095 Lake About 1/4 mile (air) west of Walker Ridge Road, about 3 miles (air) southwest of the intersection of Bear Valley Road and Brim Road, about 18 miles (air) west of Williams. Comment
  JEPS16209  Viola douglasii Rimo Bacigalupi, Arthur Holmgren 1950-4-26 3188 Lake between Bear Valley and Indian Valley (first summit on Bartlett Mountain Road); Inner North Coast Ranges Comment
  UC1053470  Viola douglasii Rimo Bacigalupi, Arthur Holmgren 1950-4-26 3188 Lake between Bear Valley and Indian Valley (first summit on Bartlett Mountain Road, at Colusa-Lake County line); Inner North Coast Ranges Comment
  UCD82461  Viola douglasii Craig Thomsen; G. Harrington 2009-5-12 2839 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 707 Comment
  UCR242998  Viola douglasii G. Robinson 1984-4-21 16 Colusa Inner North Coast Range, NW of Barrel Springs Campground (c. 200 m) off Barrel [Bartlett?] Springs Road, adjacent to water well 701 Comment
  HSC95557  Viola pedunculata L. Snyder, B. Redfern, A. de Knijf 1999-5-1 58 Lake Walker Ridge Rd., 8 mi. off Hwy. 20; Blue Oak Recreational Area 534 Comment
  UCD82090  Viola purpurea Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5617 Lake 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. 821 Comment
  HSC66595  Viola purpurea subsp. purpurea Debbie Stamp, Joanne Spitler, Cathy Railey, Patty Powers, Cathy Macdonald 1980-4-19 12 Lake Coldsprings Campground, along access road to Indian Valley Dam: across the access from the campground Comment
  HSC66656  Viola purpurea subsp. purpurea Cathie Goldberg, Lauren Philbrick, Lynn Kunstman, Geoff Walsh 1980-4-19 5 Lake Coldsprings Campground, along access road to Indian Valley Dam. Comment
  HSC90166  Viola purpurea subsp. purpurea Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-14 44 Lake Blue Oak Campground, Indian Valley Reservoir Access Rd., 2.5 mi. NE of intersection with Walker Ridge Rd. 534 Comment
  HSC66590  Viola purpurea subsp. quercetorum S. Harris, B. Ferguson, M. Moble, S. Smith 1980-4-19 Lake Coldsprings Campground, along access road to Indian Valley Dam 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
  HSC39638  Vulpia microstachys J. P. Smith, J. O. Sawyer 1971-6-6 4726 Lake 0.75 mi. N of Clyde Mine, Walker Ridge Rd. 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
  HSC87055  Vulpia microstachys Pat Daly 1988-4-16 52 Colusa 21.6 mi. off Hwy. 20 on Brim Rd., via Walker Ridge Rd. 518 Comment
  UCD82505  Vulpia microstachys var. ciliata Craig Thomsen; G. Harrington 2009-5-12 2866 Colusa Colusa County on Walker Ridge. Eaton Springs, about 1 mile east of Walker Ridge Rd. 710 Comment
  CDA21540  Vulpia microstachys var. pauciflora G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17086 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  CHSC101221  Vulpia microstachys var. pauciflora G. F. Hrusa; R. Gross, L. Houser 2008-4-11 17086 Lake Open, chaparral slopes with woodland on N faces immediately below Indian Valley Reservoir spillway into North Fork Cache Creek tailrace. 396 Comment
  UCD82093  Vulpia microstachys var. pauciflora Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5620 Lake 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. 821 Comment
  HSC87054  Vulpia myuros Pat Daly, Rudy Galindo 1988-4-16 35 Lake 6.1 mi. on Walker Ridge Rd. from Hwy. 20 to Blue Oak Campground 732 Comment
  UCD82095  Vulpia octoflora Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5622 Lake 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. 821 Comment
  CDA22947  Wyethia angustifolia G. F. Hrusa, R. Gross 2008-5-23 17440 Lake North Coast Ranges; above N. Fk. Cache Cr. +/- 1/2 mi. below spillway of Indian Valley Reservoir. 408 Comment
  UCD82534  Wyethia angustifolia Ellen Dean; G. Harrington, C. Thomsen,Chiao-Yi Cheng,R. Wilmarth 2009-5-20 5686 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
  HSC90050  Wyethia glabra Rohmer, Grefsrud, Reed 1990-4-14 41 Lake Blue Oak Campground, Indian Valley Reservoir Access Rd., 2.5 mi. NE of intersection with Walker Ridge Rd. 534 Comment
  UCD84447  Wyethia glabra Ellen Dean; C. Thomsen, G. Harrington, R. Wilmarth, R. Wenk 2010-6-2 6055 Lake Walker Ridge. Along Walker Ridge Road. Just S of turnoff to Picnic Area. West side of the road. 1038 Comment
  CHSC79696  Wyethia helenioides Todd Bouchier; Kathleen Gifford, Cameron Williams 1999-5-1 25 Lake Blue Oak Recreation Area, Walker Ridge Road, 12.8 km from Hwy 20. 536 Comment
  HSC87002  Wyethia helenioides Brent Helm, Curtis Miller, Mark Steiger 1988-4-15 56 Lake Blue Oak Campground, 6.1 mi. on Walker Ridge Rd. off Hwy. 20 732 Comment
  HSC95342  Wyethia helenioides A. Hove, A. Poteet, C. Sanville 1999-5-1 26 Lake Walker Ridge Rd., Blue Oak Recreation Area 537 Comment
  CDA22936  Yabea microcarpa G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17113 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  CHSC70962  Yabea microcarpa Vernon Oswald; Lowell Ahart 1998-5-7 8993 Colusa Bartlett Springs Rd. 1.6 mi west of Bear Valley Rd. 487 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
  CHSC71427  Zeltnera trichantha Vernon H. Oswald; Lowell Ahart 1998-7-15 9267 B Colusa Bartlett Springs Rd. 1.6 mi west of Bear Valley Rd. In a meadow. 487 Comment
  CHSC71428  Zeltnera trichantha Vernon H. Oswald; Lowell Ahart 1998-7-15 9288 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Bartlett Springs Rd. Along the banks of an intermittent stream. 640 Comment
  SD7740  Zeltnera trichantha Daniel Cleveland Jun 1882 Lake Indian Valley Comment
  UC2042510  Zeltnera trichantha Holly Forbes and Barbara Keller 2011-7-7 Colusa Walker Ridge Rd, 6.2 miles N from its intersection with Highway 20. Comment
  UCD121477  Zeltnera trichantha Vernon H. Oswald; Lowell Ahart 1998-7-15 9288 Lake East side of county near Barrel Spring on the east side of Baldy Mtn. and west of Walker Ridge Rd. 0.8 mi south of Bartlett Springs Rd. 640 Comment
  UC2042509  Zeltnera venusta Holly Forbes and Barbara Keller 2011-7-7 Marin about 1/8 mi. W of Walker Ridge Rd., 18.1 mi. via Bear Valley Rd. NW of Highway 20. Comment
  CDA22933  Zigadenus fremontii G. F. Hrusa, R. Gross, L. Houser 2008-4-11 17110 Lake North Coast Ranges; Immed. below Indian Valley Res. spillway into N. Fk. Cache Creek tailrace. 396 Comment
  HSC41906  Zigadenus fremontii M. A. Baker 1977-4-24 211 Lake Barrel Springs Campground. 701 Comment
  HSC85762  Zigadenus fremontii R. Earing, C. Cavanaugh, C. Collins 1987-4-11 68 Lake Blue Oak Campground, 8 mi. N of Hwy. 20 on Walker Ridge Rd., SE of Indian Valley Reservoir Comment
  HSC87082  Zigadenus fremontii L. Blackford, S. Branch, D. Malm 1988-4-16 37 Colusa 6.1 mi. on Walker Ridge Road off Hwy 20 at Blue Oak campground 732 Comment
  SEINET3889545  Zigadenus fremontii Nina Williams, Ellen Purcell; Terry Hines 1988-4-16 32 Lake 6.1 miles on Walker Ridge Rd. Blue Oak Campground.; 0 732 Comment
  UCR123617  Zigadenus fremontii Jim Belsher, John Kendall, Pete Nichols 1997-4-29 10 Lake Indian Valley Reservoir Access Road, Blue Oak Campground 274 Comment
  UCR138742  Zigadenus fremontii A. Skelly, G. McCabe, B. Bletcher 1996-3-30 31 Lake Benmore Canyon, 1.4 mi west of Walker Ridge Rd. on Indian Reservation Rd., 57 mi east of Hwy 101 on Hwy 20 683 Comment
  UCR139087  Zigadenus fremontii M. Brooks, Julie Evens, H. Johnson 1997-3-29 6 Lake Blue Oak Campground 274 Comment
  HSC27161  Zigadenus micranthus J. P. Smith, J. O. Sawyer 1972-4-1 5161 Lake 6.2 mi. N of junction of Hwy. 20 and Walker Ridge Rd. Comment
  HSC66013  Zigadenus micranthus D. Boyd, M. Eichelberger, Tim Messick 1980-4-19 21 Lake Coldsprings Campground along access road to Indian Valley Dam Comment
  HSC86891  Zigadenus micranthus Pat Daly, Rudy Galindo 1988-4-16 47 Lake 6.1 mi. on Walker Ridge Rd. from Hwy. 20 to Blue Oak Campground 732 Comment
  HSC98360  Zigadenus micranthus William Kristan, Brian Marston, Reid Storre 1988-4-16 40 Lake 6.1 mi. on Walker Ridge Rd. off Hwy. 20, above Blue Oak Campground Comment
  JEPS62268  Zigadenus micranthus var. micranthus W. L. Jepson 1920-5-23 8982 Lake hills e Indian Valley (ne Lake Co.) Comment
  HSC31716  Zigadenus paniculatus Teresa Prendusi 1974-5-4 53 Colusa Beyond Clyde Mine 1/8 mi. 854 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
  HSC45710  Zigadenus venenosus var. venenosus Sheila Logan 1978-4-23 86 Lake Barrel Springs Campground. 701 Comment
  RSA256673  Zigadenus venenosus var. venenosus Thomas Higley 1974-5-4 62 Colusa 0.75 mile north of T junction of Indian Valley 854 Comment
  RSA489573  Zigadenus venenosus var. venenosus James L. Reveal 1988-6-2 6990 Lake Barrel Springs area just west of the Walker Ridge Road, 1 mile south of the Bartlett Springs Road and about 15 miles north of Hwy 20. 762 Comment



  Copyright © 2019 Regents of the University of California — Updated 11 January 2019
0.78 processing seconds