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Specimen ID
Determination *
Collector
Collection Date
Collection Number
County
Locality
Elevation in meters
Feedback
CAS-BOT-BC78035
Abies concolor
Clare B. Hardham
1969-8-28
s.n.
Lassen
west of Janesville
Comment
RSA518546
Abies concolor
F. C. Vasek
1976-9-3
760903 -A
Lassen
5 miles W of Susanville, N of State Highway 44 at a point 1/4 mile N of junction with State Highway 36.
Comment
CHSC6219
Abies magnifica
P. Balch
1955-6-1
Lassen
Silver Lake.
1981
Comment
CHSC12493
Achillea millefolium
Carol Weld
1969-6-20
20
Lassen
Dean's Meadow.
1950
Comment
JEPS127717
Achillea millefolium
Alejandro Brambila, Michael Dolan
2016-7-25
CA 320 -172
Lassen
Clarks Valley Road west off 395 right after Likely Mtn. About 1Mile before Christensen Corral
Comment
CAS-BOT-BC260402
Achnatherum hymenoides
Ira L. Wiggins; Dorothy B. Wiggins
1961-6-11
16335
Lassen
13.5 miles E of Susanville
Comment
UC1609124
Achnatherum hymenoides
Vernon H. Oswald and Lowell Ahart
1993-6-14
5544
Lassen
Eagle Lake Rd (Lassen A1) at Sandy Beach (w shore of lake, ca 2.0 mi ene of Spaulding Tract Rd (Rd 518, 33N89)); Eagle Lake
1566
Comment
CAS-BOT-BC210660
Achnatherum lemmonii
John Thomas Howell
1973-7-10
49774
Lassen
Fredonyer Pass
1737
Comment
UC1024755
Achnatherum lemmonii
Leo Whitney
1933-7-15
2297
Lassen
25 mi w of upper end of Eagle Lake (Hall's Flat); Lassen National Forest
1737
Comment
UC1137759
Achnatherum lemmonii
August L. Hormay
1934-5-15
Lassen
e Eldrige's; Lassen National Forest
1524
Comment
UCD50509
Achnatherum lemmonii
R. Tofsrud
1947-7-1
243
Lassen
Between Bieber and Nubieber.
Comment
UCD50787
Achnatherum nelsonii
R. Tofsrud
1947-7-1
221
Lassen
13 miles E of Madeline.
Comment
CAS-BOT-BC110706
Achnatherum nelsonii subsp. dorei
G. Schoolcraft
1994-7-7
2373
Lassen
About 1 mile west of Boot Lake.
2346
Comment
UCD18962
Achnatherum occidentale
Jack N. Reppert
1965-7-12
14
Lassen
Lassen National Forest, Harvey Valley Allotment (HV 81-76).
1737
Comment
UCD54017
Achnatherum occidentale
John Thomas Howell; Gordon H. True
1973-8-1
50069
Lassen
Canadian Zone forest, east slope of Diamond Range south of Susanville, Lassen County.
2362
Comment
UC1037122
Achnatherum occidentale subsp. californicum
Leo Whitney
1935-6-23
3296
Lassen
Camp 10, Fruit Grower's Supply Company Lassen National Forest
Comment
RSA582082
Achnatherum occidentale subsp. occidentale
J. T. Howell
1934-7-6
12431
Lassen
Hall's Flat.
Comment
UC506986
Achnatherum occidentale subsp. occidentale
George A. Fischer and Irwin H. Johnson
1933-7-12
F- 218
Lassen
Lassen Forest
1722
Comment
UC717977
Achnatherum occidentale subsp. occidentale
David D. Keck
1944-7-8
5451
Lassen
1.5 mi w Susanville (rim of plateau overlooking Susan River canyon); Sierra Nevada, Susan River
1341
Comment
UCD32665
Achnatherum occidentale subsp. pubescens
Beecher Crampton
1954-7-5
2064
Lassen
Lassen County, 4.5 miles west of Susanville, along state highway 36.
1432
Comment
UCD32668
Achnatherum occidentale subsp. pubescens
Beecher Crampton
1954-7-6
2069
Lassen
Lassen County, 1 mile east of Johnstonville, along US highway 1395.
1219
Comment
UCD51215
Achnatherum occidentale subsp. pubescens
Beecher Crampton
1954-7-5
2064
Lassen
Lassen County, 4.5 miles west of Susanville, along state highway 36.
1432
Comment
CHSC80710
Achnatherum speciosum
V. H. Oswald; B. Corbin, K. Earll, G. Schoolcraft
2001-6-2
10034
Lassen
Northeast of Doyle in the Fort Sage Mtns, trailhead to top of mountain from the end of a 4WD road.
1798
Comment
JEPS102671
Achnatherum speciosum
V. H. Oswald, B. Corbin, K. Earll, and G. Schoolcraft
2001-6-2
10034
Lassen
NE of Doyle (Fort Sage Mountains, trailhead to top of mountain from the end of a 4WD road)
1798
Comment
CHSC42221
Achnatherum thurberianum
C. E. Laver
1985-8-12
Lassen
Ca. 8.5 mi se of Madeline and 9 mi ne of Termo.
2194
Comment
UC1024812
Achnatherum thurberianum
Leo Whitney
1935-6-19
3267
Lassen
Camp 10, Fruit Grower's Supply Company Lassen National Forest
Comment
UC1024911
Achnatherum thurberianum
Leo Whitney
1935-6-25
3372 b
Lassen
ca 13 mi w of upper end Eagle Lake; Ashurst Mountain
Comment
UC1031354
Achnatherum thurberianum
Leo Whitney
1935-6-19
3258
Lassen
13 mi w of upper end Eagle Lake; Lassen National Forest, Ashurst Mt.
1584
Comment
UC584332
Achnatherum thurberianum
G. L. Stebbins Jr. and J. A. Jenkins
1937-7-8
2226
Lassen
6 mi s Ravendale
1660
Comment
UCD51444
Achnatherum thurberianum
R. Tofsrud
1947-7-1
223
Lassen
Between Ravendale and Thermos.
Comment
CAS-BOT-BC217991
Achnatherum webberi
David D. Keck; J. Clausen
1935-6-24
3749
Lassen
2 miles S of Ravendale
1463
Comment
CHSC29909
Acmispon americanus var. americanus
Robin L. Ondricek
1978-7-15
99
Lassen
East side of Lower Dry Lake.
1645
Comment
CHSC30681
Acmispon americanus var. americanus
M. S. Taylor
1974-7-10
281
Lassen
In meadow, ca. 0.5 mi e of Gallatin Beach, ca. 0.5 mi s of Eagle Lake, ca. 12 mi ne of Susanville.
1524
Comment
CHSC112418
Acmispon denticulatus
Lowell Ahart; John Dittes, Todd Sloat
2013-6-8
18746
Lassen
About 30 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
CAS-BOT-BC412863
Aconogonon davisiae
Ray Hanson
1954-8-23
s.n.
Lassen
Lassen Park: near Jakey Lake
2112
Comment
CHSC117525
Acroptilon repens
Lowell Ahart; John Dittes
2016-7-13
21103
Lassen
Sides of the overflow, about 50 yards north of the dam, 200 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley.
1289
Comment
UCD95438
Adonis aestivalis
Gerald Dickinson
1963-7-2
s.n.
Lassen
Willow Creek Campground, ca. 18 miles southeast of Adin on road to Termo.
1219
Comment
SEINET4339237
Aegilops triuncialis
G. Schoolcraft
1997-6-26
2603
Lassen
1.2 mile north of Susanville, west of Highway 395
1326
Comment
CAS-BOT-BC383114
Agastache parvifolia
Andrew Townesmith; Karen M. Meyer
2007-7-22
847
Lassen
Lassen National Forest, Eagle Lake Ranger District. Intersection of Forest Service road 32N09 and Forest Service route 10, 6 miles SW of state route 44
1971
Comment
CHSC21954
Agastache parvifolia
Robert A. Schlising
1974-7-19
3152
Lassen
SE of Eagle Lake, about 1.1 mi from Eagle Lake Field Station along dirt road.
Comment
CHSC25082
Agastache parvifolia
K. R. Stern
1967-6-30
2455
Lassen
West Central side of Eagle Lake.
1554
Comment
SEINET10499368
Agastache parvifolia
Mary Merello
1993-6-28
Merello 746
Lassen
Lassen National Forest, Poison Lake. Along Hwy. 44 just south of the Hwy. 89, Hwy. 44 intersection. Open pine-scrub and wetlands around lake. Volcanic soils.
1700
Comment
POM147886
Agastache urticifolia
J. B. Feudge
1927-7-20
1754
Lassen
Westwood
Comment
JEPS85819
Ageratina occidentalis
Roy E. Buck
1989-10-5
1420
Lassen
ca 1.8 air km sw Fredonyer Peak summit (28 air km n of Susanville, along road to Fredonyer Peak, on upper wnw-facing slope of ridge overlooking n end of Eagle Lake); Eagle Lake
2115
Comment
SEINET10757871
Ageratina occidentalis
Andrew Townesmith, Karen M. Meyer
2007-7-20
Townesmith 836
Lassen
Lassen National Forest, Eagle Lake Ranger District. Along Forest Service road 30N03, 0.5 mile from intersection with state route 36, at roadblock where two decrepit bridges cross Susanville River. T29N R11E S6 SW 1/4.
1429
Comment
CAS-BOT-BC30231
Ageratina occidentalis
William Bridge Cooke
1938-8-24
11580
Lassen
In small valley just west of Bolam Creek. Also on an outcropping west of Horse Camp in the Shasta Fir Forest
2133
Comment
CAS-BOT-BC29597
Agoseris X dasycarpa
M. K. Bellue
1940-6-1
s.n.
Lassen
Susanville
Comment
CDA18260
Agoseris glauca
G. D. Barbe
1974-8-2
1922
Lassen
Long Valley; Hallelujah Junction, northwest corner of jct of US Hwy 395 and Hwy 70.
1524
Comment
SEINET10616047
Agoseris glauca
Paul Gallian, David B. Dunn
1971-6-2
Gallian 520
Lassen
6 mi. N of Hallelujah Jct. on U.S. Hwy. 395, in Artemisia tridentata, Pinyon pine, Jeffery pine along high ridge and in sandy wash.
1402
Comment
UC1609115
Agoseris glauca var. glauca
Vernon H. Oswald and Lowell Ahart
1993-6-14
5530
Lassen
Eagle Lake Rd (Lassen A1) at Sandy Beach on W shore of lake (ca 2.0 mi ene of Spaulding Tract Rd (Rd 518, 33N89), upper beach, between road and lake); Eagle Lake
1566
Comment
UC29371
Agoseris grandiflora var. grandiflora
M. S. Baker and Frank Nutting
1894-7-2
Lassen
s side Dixey Mts.
Comment
UC29394
Agoseris grandiflora var. grandiflora
M. S. Baker and Frank Nutting
1894-7-2
Lassen
Dixie Mt. Dixie Mt.
Comment
CAS-BOT-BC15350
Agoseris heterophylla
Doris Kildale Gillespie
1930-5-13
9370
Lassen
Between Susanville and Janesville
Comment
CAS-BOT-BC22893
Agoseris heterophylla
Margaret J. Williams; Gary Schoolcraft; Arnold Tiehm
1986-5-12
82- 19 -1
Lassen
Smoke Creek Rd., 0.1 mi E of Hwy 395
1371
Comment
UC585117
Agoseris heterophylla var. heterophylla
E. B. Babcock, G. L. Stebbins Jr.
1936-6-7
1774
Lassen
dry sandy wash Red Rock
1280
Comment
POM318656
Agoseris heterophylla var. heterophylla
Patricia Wilder
1971-6-20
5053
Lassen
About 6 miles southeast of Adin on Adin - Madelaine Road; Modoc National Forest; Cascades mountain range, Cascade River drainage area
1768
Comment
UC773915
Agoseris retrorsa
L. R. Short and W. McNulty
1936-6-15
S- 436
Lassen
Burgess Spring Exp. Range
1848
Comment
SEINET3915762
Agropyron cristatum
LeDoux, Dunn
1973-5-24
859
Lassen
Collected at jct. of Hwy. 70&395 at Arco Station.; 0
Comment
UCR244067
Agropyron cristatum
Jim Andre, G. L. Clifton
1993-6-9
19693
Lassen
Foothills of Sierra Nevada Mtns., Honey Lake Valley, c. 5 mi. west of Doyle (at U.S. 395), just inside Plumas NF boundary
1631
Comment
CDA1692
Agropyron desertorum
G. D. Barbe
1974-8-2
1933
Lassen
Hallelujah Junction, US 395 at Hwy 70, northwest corner.
Comment
RSA299167
Agropyron desertorum
J. T. Howell
1974-7-8
50468
Lassen
Susanville
1296
Comment
UCR152278
Agropyron spicatum
Beecher Crampton
1954-7-5
2053
Lassen
Modoc Plateau, 4.5 miles west of Susanville, along state highway 36
1433
Comment
HSC69074
Agrostis exarata
Gary Schoolcraft
1980-8-13
351
Lassen
N side of Diamond Mountain, south of Susanville
1951
Comment
HSC95151
Agrostis exarata
Gordon Leppig
1998-7-12
955
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
UC589901
Agrostis exarata
H. S. Yates
1936-8-11
6067
Lassen
Baxter Creek Susanville Quad., Baxter Creek
Comment
CAS-BOT-BC139678
Agrostis gigantea
John Thomas Howell
1975-7-23
51401
Lassen
Sierra Nevada. Susanville.
1295
Comment
CAS-BOT-BC139293
Agrostis idahoensis
George W. Gillett
1957-7-28
927
Lassen
Lassen Volcanic National Park. Trail to Widow Lake above junction with Snag Lake trail at upper end of Butte Lake. Dry was 100 yards above trail junction.
1859
Comment
SEINET7594038
Agrostis idahoensis
George W. Gillett
1957-7-22
877
Lassen
Lassen Volcanic National Park; Snag Lake. Margin of gravel bars 110 yards above lake near south shore.
1850
Comment
UCD53173
Agrostis pallens
L. Whitney
1933-8-7
2194
Lassen
Slate Creek, 8 miles northwest of Eagle Lake, Lassen National Forest.
1920
Comment
UCD53246
Agrostis pallens
L. Whitney
1933-8-1
s.n.
Lassen
Slate Creek.
1920
Comment
SEINET4341134
Agrostis pallens
G. Schoolcraft
1994-7-6
2349
Lassen
About 1.5 miles NE of Red Rock Lake
2042
Comment
CAS-BOT-BC138802
Agrostis scabra
John Thomas Howell
1973-7-10
49768
Lassen
Sierra Nevada. Near Westwood.
1554
Comment
UC60211
Agrostis stolonifera
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3307
Lassen
Tule Confederacy Honey Lake Valley
Comment
CHSC77261
Agrostis variabilis
G. Schoolcraft
1997-8-6
2662
Lassen
Dimond Mtn.
2316
Comment
SEINET7594432
Agrostis variabilis
George W. Gillett
1957-1
927
Lassen
Lassen Volcanic National Park, Trail to Widow Lake above junction with Snag Lake trail at upper end of Butte Lake. Dry wash 100 yards above trail junction.
1859
Comment
UC985665
Alisma gramineum
Malcolm A. Nobs and S. Galen Smith
1949-7-22
1074
Lassen
marshes along Willow Creek (10 mi n of Susanville); Willow Creek Valley
Comment
CHSC117273
Alisma triviale
Lowell Ahart; John Dittes
2016-7-15
21221
Lassen
About 50 yards west of the road and about 400 yards south of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
JEPS119644
Alisma triviale
Lowell Ahart, John Dittes
2012-7-9
18294
Lassen
Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
Comment
RSA0039525
Alisma triviale
Lowell A. Ahart, John Dittes
2012-7-9
18294
Lassen
About 100 yards southeast of the tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
SEINET8117272
Allium atrorubens
A. Tiehm, J. Nachlinger, M. J. Williams
1988-1
11702
Lassen
S side of Shaffer Mountain, 3.4 road miles N of the Wendel road on highway 395 from Susanville to Alturas, W of the highway.
1387
Comment
CHSC64812
Allium atrorubens var. atrorubens
Vernon H. Oswald
1995-6-7
6836
Lassen
Modoc Plateau, on N side of Wendel Rd. (Lassen 320) at milepost 11.0, 5.6 mi E of Wendel, NE of Susanville.
1237
Comment
UC1567422
Allium atrorubens var. atrorubens
G. Schoolcraft
1989-5-31
1888
Lassen
slopes of Skedaddle Creek n Wendel Rd.; Skedaddle Creek
1402
Comment
POM110223
Allium campanulatum
Marcus E. Jones
1897-6-28
s.n.
Lassen
Top of Diamond Mt. Susanville. Perkin's Ranch.
2226
Comment
SEINET3884275
Allium campanulatum
Mary Merello, H. H. Schimdt; L. Woodruff
1993-6-27
743
Lassen
Lassen National Forest at intersection of Forest Service Road 32N15 and Hwy. 94.; 0
1700
Comment
POM110069
Allium lemmonii
Marcus E. Jones
1897-6-30
s.n.
Lassen
Eagle Lake, 27 miles from Susanville.
1524
Comment
RSA125593
Allium lemmonii
Peter H. Raven, Otto T. Solbrig
1958-6-17
13288
Lassen
U. S. Highway 395, 1.8 miles south of Ravendale.
Comment
UCD138558
Allium lemmonii
A. A. Beetle; G. L. Stebbins Jr.
1942-5-29
3366
Lassen
5.2 miles E of Bieber, Big Valley.
Comment
CAS-BOT-BC470925
Allium lemmonii
C. L. Hitchcock
1940-5-26
6640
Lassen
Overflow of Pitt River, 1 mile west of Bieber
Comment
CAS-BOT-BC472753
Allium lemmonii
Peter H. Raven; Otto T. Solbrig
1958-6-17
13288
Lassen
Highway 395, 1.8 miles south of Ravendale
Comment
SEINET3885793
Allium lemmonii
D. W. McNeal
1980-6-1
2338
Lassen
Beside Highway #139, 32.4 miles South of the junction of Highway #299 in Adin.; 0
Comment
UC2042973
Allium lemmonii
Barbara Ertter
1990-5-13
8966
Lassen
McCoy Road N of Westwood, 0.3 mi S of Highway 44 on E side of McCoy Flat.
Comment
JEPS103209
Allium parvum
G. Schoolcraft
1993-4-27
2256
Lassen
Ash Valley RNA between Adin and Madeline, CA
1554
Comment
CHSC68887
Allium platycaule
Vernon Oswald; Lowell Ahart
1997-6-24
8624
Lassen
South of Susanville on the north side of Diamond Mtn. On Forest Rd. 21N52, 1.0 mi southwest of its junction with 29N43.
2164
Comment
POM110002
Allium platycaule
Marcus E. Jones
1897-6-28
s.n.
Lassen
Diamond Mountain. Susanville. Perkin s Ranch.
1829
Comment
UC106708
Allophyllum integrifolium
T. S. Brandegee
1892-7-2
Lassen
Susanville
Comment
UC1586110
Alnus incana subsp. tenuifolia
Barbara Ertter
1988-7-25
7868
Lassen
ridge of mts. ca 1.5 mi due e Diamond Peak (n face, ca 10 air mi due s of Susanville); Diamond Mts.
2255
Comment
CAS-BOT-BC332746
Alopecurus
R. F. Thorne; Larry E. DeBuhr
1975-8-22
46987
Lassen
Along Hwy 395 ca 6 miles N of Madeline and 4.5 miles S of Modoc county line
1615
Comment
UC1130817
Alopecurus geniculatus
A. Simontacchi
1940-5-17
745
Lassen
5.9 mi. s. Patterson Mt.; Lassen Nat'l Forest, Halls Flat Quad.
Comment
JEPS107365
Alopecurus pratensis
Lowell Ahart, John Dittes
2005-6-1
11868
Lassen
On the west side of the poor dirt road, about 1/2 mile west of Scott Road, Long Valley, about 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.9 miles (air) northwest of Hallelujah Junction
1448
Comment
RSA715541
Alopecurus pratensis
L. Ahart
2005-6-1
11686
Lassen
On the west side of the poor dirt road, about 1/2 mile west of Scott Road, Long Valley, About 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.9 miles (air) northwest of Hallelujah Junction.
1449
Comment
UC1924568
Alopecurus pratensis
Debra Valov
2006-5-28
2006040
Lassen
Bieber off County Rd. A2 c. 12 km east of Hwy 299
1279
Comment
CHSC67190
Alyssum minus subsp. micranthum
James D. Jokerst
1991-5-28
3293
Lassen
Modoc Plateau. Survey for reroute of Hwy. 139 at the N end of Eagle Lake, ca. 400 ft E of the highway on slopes above road, S of a small canyon mouth.
1554
Comment
JEPS118269
Alyssum minus subsp. micranthum
Lowell Ahart, John Dittes
2011-6-20
17493
Lassen
About 20 yards east of the stream, about 80 yards north of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin
1520
Comment
CHSC66859
Amaranthus californicus
Vernon H. Oswald; Lowell Ahart
1996-9-10
8277
Lassen
Mountain Meadows Reservoir SW of Westwood.
1539
Comment
JEPS121243
Amaranthus californicus
Lowell Ahart, John Dittes
2013-7-22
18860
Lassen
50 yards W of the road levee, about 250 yards S of the four tall poles, Ash Creek Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley.
Comment
UCD54542
Amaranthus californicus
Ellen Dean; Petra Unger, Dawn Cunningham
2005-10-10
2727
Lassen
E. of town of Susanville. Private property N of California Correctional Facility.
1248
Comment
CHSC76262
Amaranthus powellii
Lowell Ahart; Vernon H. Oswald
1999-9-13
8226
Lassen
Along a small slough on the north side of Mapes Road, about 1/2 mile east of lambert Lane, about 3 1/2 miles (air) southeast of Standish.
1210
Comment
CAS-BOT-BC142539
Amelanchier utahensis
Philip A. Munz
1947-5-20
11886
Lassen
Laufman Forestry Public Camp Ground, above Milford.
1524
Comment
UC12108
Amelanchier utahensis
Mrs. R. M. Austin
Jun 1894
Lassen
Willow Creek Valley
Comment
CHSC76307
Amphiscirpus nevadensis
Lowell Ahart; Vernon H. Oswald
1999-9-13
8228
Lassen
Along a small slough, on the south side of Mapes Road, about 200 yards east of Lambert Lane, about 3 1/2 miles (air) southeast of Standish.
1210
Comment
SEINET9183301
Amphiscirpus nevadensis
R. R. Halse
2010-8-25
8087
Lassen
Along State Hwy. 139 ca 26.2 miles north of Susanville on the northeast shore of Eagle Lake.
1559
Comment
CAS-BOT-BC222254
Amsinckia
John Thomas Howell
1934-6-16
12220
Lassen
Big Valley, 4 miles ne. of Bieber
Comment
HSC28822
Amsinckia tessellata
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19277
Lassen
Along Hwy. 395, 4 mi. E of Standish
Comment
UCD72518
Amsinckia tessellata
Joe DiTomaso
2008-5-15
s. n.
Lassen
Modoc Plateau, just inside California (from Nevada) on Smoke Creek Road near Ravendale.
Comment
UC198379
Amsinckia tessellata var. tessellata
J. G. Lemmon
Lassen
Sierra and Long Valleys
Comment
JEPS29744
Anisocoma acaulis
Rimo Bacigalupi and L. R. Heckard
1962-5-29
8499
Lassen
2.7 mi n of Milford, along US Hwy 395
1219
Comment
SEINET6735001
Anisocoma acaulis
F. B. Headley
1915-5-28
s.n.
Lassen
Honeylake
Comment
CAS-BOT-BC63951
Antennaria argentea
A. M. Vollmer; L. Beane
1953-7-1
101
Lassen
Along Halls Flat road, beginning 6 miles west of Susanville to McArthur
1554
Comment
CHSC60722
Antennaria dimorpha
Vernon H. Oswald; Lowell Ahart
1993-6-3
5477
Lassen
Champs Flat Rd. (Lassen 21/105, Forest 32N02), 3.7 mi N of Hwy 44 at spur road 32N02E, on the SE side of Pine Creek Valley, between Poison Lake and Susanville.
1731
Comment
CHSC68729
Antennaria dimorpha
Vernon H. Oswald; Lowell Ahart
1997-5-27
8505
Lassen
North of Susanville on Forest Route 38N04 (between Hwy. 139 near Willow Creek Guard Station and Coyote Flat), 0.3 mi east of Hwy. 139.
1560
Comment
UC1137285
Antennaria dimorpha
K. E. Bradshaw
1939-5-27
244
Lassen
near s end of Black Mt. Experimental Forest; Lassen National Forest, Halls Flat Quad., Thompson Meadow
1737
Comment
UC773914
Antennaria dimorpha
L. R. Short
1936-6-8
S- 386
Lassen
Burgess Sp. Exp. Range Thompson Meadow
1743
Comment
HSC69048
Antennaria dimorpha
Gary Schoolcraft
1980-4-8
203
Lassen
On east side of Schaffer Mtn. about 1/2 mile west of Hwy. 395
1463
Comment
UC1266740
Antennaria flagellaris
Gary Schoolcraft
1981-5-27
410
Lassen
(on rocky gravelly site near Yellow Pine Forest) Hayden Hills
1737
Comment
CAS-BOT-BC69139
Antennaria geyeri
Geo. A. Fisher
1928-6-23
31
Lassen
Halls Flat
1615
Comment
CHSC60808
Antennaria geyeri
Vernon H. Oswald; Lowell Ahart
1993-6-28
5584
Lassen
Harvey Valley Rd. (33N02), 1.2 mi N of Hwy 44, E side of Grays Valley, E of Poison Lake.
1731
Comment
CHSC92677
Antennaria geyeri
L. P. Janeway; B. Castro
2005-7-10
8478
Lassen
Northern High Sierra Nevada. Crest of the Diamond Mountains overlooking Janesville and the north end of Honey Lake; 0.2 km north of Road 28N01 and 0.6 km east of junction of Janesville Grade Road (Road 208 and 28N02) and Road 28N01. Northerly-facing side of the crest.
1859
Comment
JEPS100336
Antennaria geyeri
Dean W. Taylor
2001-7-19
17842
Lassen
Diamond Mountains, ridgecrest ca. 1 air mile South of Doyle Grade
2072
Comment
JEPS94559
Antennaria geyeri
Vernon Oswald and Lowell Ahart
1997-6-24
8591
Lassen
s of Susanville (on n side of Diamond Mountain on Forest Road 29N43, 1.2 mi e of Gold Run Road (29N10)); Diamond Mountain, Forest Road 29N43
1685
Comment
RSA713120
Antennaria geyeri
L. P. Janeway, B. Castro
2005-7-10
8478
Lassen
Northern High Sierra Nevada. Crest of the Diamond Mountains overlooking Janesville and the north end of Honey Lake; 0.2 km north of Rd. 28N01 and 0.6 km east of junction of Janesville Grade Rd (Rd 208 & 28N02) and Road 28N01
1859
Comment
SEINET3145605
Antennaria geyeri
M. E. Jones
1897-6-25
sn
Lassen
Susanville
1341
Comment
CAS-BOT-BC69142
Antennaria geyeri
Christopher Davidson
1974-7-24
2487
Lassen
jCa. 4 mi W of Janesville on rd to Antelope Valley
2133
Comment
CAS-BOT-BC58693
Antennaria luzuloides
A. A. Heller
1938-6-23
15189
Lassen
East of Westwood
Comment
CDA10077
Antennaria luzuloides
L. Ahart, J. Dittes
2005-6-1
11862
Lassen
On the east side of the poor dirt road, about 1/2 mile west of Scott Road, Long Valley, about 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.9 miles (air) northwest of Hallelujah Junction.
Comment
UC1609101
Antennaria luzuloides
Vernon H. Oswald and Lowell Ahart
1993-6-14
5527
Lassen
Eagle Lake Rd (Lassen A1) at Sandy Beach on W shore of lake (ca 2.0 mi ene of Spaulding Tract Rd. (Rd 518, 33N89), upper beach between road and lake); Eagle Lake
1566
Comment
UC585069
Antennaria luzuloides
E. B. Babcock, G. L. Stebbins Jr.
1936-6-8
1791
Lassen
about 2 mi n Madeline
1363
Comment
RSA0065403
Antennaria luzuloides
M. P. Harthill
1972-6-17
826
Lassen
Madeline.
1676
Comment
UC1523723
Antennaria rosea
Gary Schoolcraft
1982-8-10
865
Lassen
se of, along Hwy 139 Adin
1584
Comment
POM75751
Apocynum pumilum var. rhomboideum
Marcus E. Jones
1897-6-28
s.n.
Lassen
Diamond Mountain. Susanville. Perkin s Ranch.
1829
Comment
CHSC12479
Aquilegia formosa var. truncata
Carol Weld
1969-6-25
25
Lassen
Murrer's Meadow.
1524
Comment
HSC25977
Arabis holboellii var. retrofracta
D. H. Norris, T. Nelson, S. Dowty
1971-6-22
19270
Lassen
Harvey Valley near Cone Springs
Comment
HSC30184
Arabis holboellii var. retrofracta
D. H. Norris, S. Dowty, T. Nelson
1971-6-22
19199
Lassen
Harvey Valley near Cone Springs
Comment
JEPS53113
Arabis puberula
M. S. Baker and F. P. Nutting
1894-7-2
Lassen
s. side Dixey Mts.
Comment
POM316895
Arabis rectissima
Marcus E. Jones
1897-6-28
s.n.
Lassen
Diamond Mountain. Susanville. Perkin s Ranch.
1829
Comment
UC1504479
Arabis rectissima var. rectissima
Reed C. Rollins and Kathryn W. Rollins
1981-5-31
81172
Lassen
2.2 mi n CA Hwy 36 junction with County Hwy A-1
Comment
SEINET2471253
Arceuthobium abietinum
R. L. Mathiasen
2008-9-26
2008 -68
Lassen
16.5 km S. of N. entrance to Lassen Nat. Park on State Rte. 89
1940
Comment
SEINET2471272
Arceuthobium abietinum
R. L. Mathiasen
2008-9-15
2008 -27
Lassen
12.8 km S. of jct. of Westwood Road on State Route 44
1720
Comment
UC1584019
Arceuthobium campylopodum
G. Schoolcraft
1990-8-1
2120
Lassen
betw Cleghorn and Heath Reservoirs
1828
Comment
RSA38477
Arctostaphylos manzanita subsp. manzanita
P. A. Munz
1947-5-18
11865
Lassen
Fredonyer Forestry Public Camp Ground, west of Susanville.
1509
Comment
CAS-BOT-BC45895
Arctostaphylos nevadensis
A. H. Kramer
1929-1-1
s.n
Lassen
Prospect Peak
Comment
CAS-BOT-BC45910
Arctostaphylos nevadensis
Hans Leschke
1957-7-12
s.n
Lassen
Above Cold Boiling Lake
2316
Comment
UC549429
Arctostaphylos patula
F. Farris
1934-12-30
Lassen
Diamond Mt.
1524
Comment
CHSC36457
Arctostaphylos patula subsp. patula
Susan H. Euing
1982-6-5
11
Lassen
Base of northeast slope, Gallatin Peak, 1000 ft approx. from summit.
Comment
CDA23999
Arenaria congesta var. crassula
T. C. Fuller
1963-6-11
10661
Lassen
West side of Highway 395 at road to Horse Lake, 1.5 miles south of Ravendale.
0
Comment
SEINET530728
Arenaria congesta var. lithophila
Paul Opler
2006-6-9
Lassen
Ash Valley Rd., 5.9 mi E of Adin.
1423
Comment
JEPS124518
Argemone munita
Himayat H. Naqvi
1965-7-12
144
Lassen
2.6 miles from Milford, highway 139
Comment
CAS-BOT-BC401788
Argemone munita subsp. rotundata
John Thomas Howell
1924-8-13
638
Lassen
Honey Lake
Comment
UC1037334
Argemone rotundata
Leo Whitney
1934-8-5
1959
Lassen
10 mi se of Susanville (Harvey Lake Valley); Harvey Lake Valley
1402
Comment
CDA10113
Arnica amplexicaulis
G. D. Barbe
1982-7-12
3871
Lassen
Along South Grasshopper Road at west base of Grasshopper Ridge, 4 miles south of Termo-Grasshopper Road.
Comment
CAS-BOT-BC82116
Arnica chamissonis
John Thomas Howell
1934-7-8
12512
Lassen
Harvey Valley
Comment
JEPS114706
Arnica chamissonis
Lowell Ahart, John Dittes
2008-6-20
14902
Lassen
In a wet meadow, about 150 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7.0 miles (air) northeast of Bieber
1263
Comment
UC584281
Arnica chamissonis
G. L. Stebbins Jr. and J. A. Jenkins
1937-7-13
2343
Lassen
Cleghorn Reservoir
1828
Comment
RSA0059627
Arnica chamissonis subsp. foliosa
Lowell Ahart, John Dittes
2011-6-21
17534
Lassen
About 100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
1263
Comment
RSA0115088
Arnica chamissonis subsp. foliosa
Lowell A. Ahart, John Dittes
2008-6-20
14902
Lassen
About 150 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
1263
Comment
UC2027205
Arnica dealbata
Anthony Baniaga
2011-8-4
489
Lassen
Lassen National Forest. About 1/2 mile WNW of Griffith Hill, ca 30 ft N of 30N21. Swain Mountain quadrangle
Comment
CHSC66715
Arnica mollis
Vernon H. Oswald; Lowell Ahart
1996-8-1
8123
Lassen
Forest Rd. 28N56 (D-Line) ca. 2 mi N of Dyer Mtn. Lookout, SSW of Westwood.
1737
Comment
CAS-BOT-BC85029
Arnica sororia
Elmer I. Applegate
1897-6-3
866
Lassen
Madeline Plains
Comment
SEINET6775251
Artemisia arbuscula
A. A. Beetle
1957-8-16
12763
Lassen
Between Susanville and Johnstonville.
Comment
UCD35734
Artemisia arbuscula
Beecher Crampton
1960-6-20
5735
Lassen
Grass Valley ca. 4 miles southeast of Black's Mtn. Exper. Station USDA.
1676
Comment
UC762616
Artemisia biennis
R. F. Hoover
1940-10-10
4681
Lassen
Johnstonville
Comment
UCR67442
Artemisia cana
George K. Helmkamp
1990-9-23
A- 5
Lassen
Northern Sierra Nevada Mountains, 3 mi east of Susanville, along State Road 36
1345
Comment
HSC68803
Artemisia cana subsp. bolanderi
Gary Schoolcraft
1979-10-3
198
Lassen
In Dry Valley 1/4 mi. west of Dry Valley Gap
1616
Comment
CAS-BOT-BC84832
Artemisia cana subsp. cana
G. Thomas Robbins
1945-10-18
2157
Lassen
Harvey Valley, Lassen National Forest
1676
Comment
CAS-BOT-BC90332
Artemisia douglasiana
G. Schoolcraft
1989-9-13
2007
Lassen
Along BJ Trail west of Susanville at Hobo Camp
Comment
SD132272
Artemisia douglasiana
G. Helmkamp
1990-9-23
E 15
Lassen
20 miles north of Litchfield along U. S. Hwy 395.
1435
Comment
CAS-BOT-BC93741
Artemisia ludoviciana subsp. incompta
Clare B. Hardham
1969-8-28
17463
Lassen
Sierra Nevada - slope west of Janesville
Comment
CHSC117459
Artemisia ludoviciana subsp. ludoviciana
Lowell Ahart; John Dittes
2016-7-13
21105
Lassen
Center of the overflow, about 50 yards north of the dam, 200 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley.
1289
Comment
UCD129329
Artemisia ludoviciana subsp. ludoviciana
K. M. Meyer; A. Townesmith
2007-7-19
134
Lassen
Lassen National Forest. Ca. 0.2 mile on 29N03, off Hwy 36 on pullout just past a dry creek.
1459
Comment
JEPS37022
Artemisia nova
R. F. Hoover
1940-9-28
4634
Lassen
Susanville
Comment
SEINET245807
Artemisia nova
Arnold Tiehm, Gary Schoolcraft
2003-9-11
14368
Lassen
2.9 road miles north of Karlo Road on highway 395 from Litchfield to Alturas, just east of the highway
1402
Comment
SEINET251695
Artemisia nova
Arnold Tiehm, Gary Schoolcraft
2003-9-11
14368
Lassen
2.9 Rd miles N of Karlo Rd. on highway 395 from Litchfield to Alturas, Just E of the highway.
1402
Comment
UC29711
Artemisia tridentata
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3343
Lassen
Honey Lake Valley
Comment
CHSC76080
Artemisia tridentata subsp. tridentata
Lowell Ahart; Vernon H. Oswald
1999-9-13
8202
Lassen
On the west side of the dirt road and 1/4 mile south of the sign-in station, Honey Lake Wildlife Area, 4 1/2 miles (air) southeast of Standish.
1207
Comment
JEPS37010
Artemisia tridentata subsp. tridentata
W. L. Jepson
1918-8-5
7819
Lassen
Madelin Plains
1615
Comment
RSA0092309
Artemisia tridentata subsp. tridentata
Jim M. Andre, Tasha La Doux, Senna Andre, Elias Andre
2013-7-12
31432
Lassen
Along north side of Hwy 44 at south end of Grays Valley, along NF Rd# 33N02, north of Bogard Buttes, about 30 mi. west of Susanville.
1732
Comment
CHSC115816
Asclepias fascicularis
Lowell Ahart; John Dittes
2015-7-14
20325
Lassen
On the edge of the road along Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
1269
Comment
SEINET12319574
Asclepias fascicularis
Unknown
1978-1
84
Lassen
E shore of Eagle L., S of Little Troxel Pt., T32N, R11E, sec14
1573
Comment
SEINET199764
Asclepias speciosa
George A. Fischer
1933-7-29
F- 276
Lassen
Lassen National Forest; Stringer, in southwest corner of N.F.
1695
Comment
CAS-BOT-BC99241
Aster
G. D. Hanna
1958-9-22
s.n.
Lassen
Road from Caribou Lake to Cone Lake
Comment
POM261533
Aster eatonii
Alice Eastwood
1912-8-22
1918
Lassen
Battle Creek Meadows, Lassen Butte Region
Comment
CHSC23442
Astragalus
K. R. Stern; D. B. Joley, J. G. Geschke
1974-6-22
5810
Lassen
Ca. 16.5 mi w of Madeline, on Madeline-Adin Road.
1548
Comment
UCR73170
Astragalus
G. L. Webster
1989-5-13
7721
Lassen
2.5 mi. east of Beckworth Pass
1500
Comment
POM45145
Astragalus accidens var. hendersonii
Marcus E. Jones
1897-6-19
s.n.
Lassen
Chat.
1524
Comment
CAS-BOT-BC177324
Astragalus agrestis
G. Schoolcraft
1986-6-25
1642
Lassen
About 3 miles N WW of Termo
1615
Comment
UC13379
Astragalus agrestis
Mrs. R. M. Austin and Bruce
June 1898
2211
Lassen
Madaline Plains
Comment
UC1533142
Astragalus agrestis
G. Schoolcraft
1986-6-25
1642
Lassen
about 3 mi nw Termo
1615
Comment
CAS-BOT-BC177438
Astragalus andersonii
Alice Eastwood; John Thomas Howell
1940-6-16
8351
Lassen
Omira
Comment
CAS-BOT-BC177441
Astragalus andersonii
M. S. Taylor
1982-5-29
4561
Lassen
NW corner of the jct of Scott Rd and Hwy 395, ca. 20 mi n of Reno
Comment
CHSC106586
Astragalus andersonii
C. Dow; D. Garrison
2008-5-3
Lassen
Fort Sage Mtns. OHV Trailhead and Trail to Indian Springs.
1439
Comment
NY791373
Astragalus andersonii
G. Schoolcraft
1982-6-22
725
Lassen
North end of Ft. Sage Mountains
1585.0
Comment
NY791369
Astragalus andersonii
M. J. Williams
1974-8-4
74-L- 83
Lassen
About 2 miles west of Highway 395, near Highway 70
1493.5
Comment
SEINET4856104
Astragalus anxius
Unknown
1991-7-16
6108
Lassen
Ash Valley, ca. 25 km W of madeline, along Ash Valley Rd., on boundary of T38N, R11E, Sect. 32 and T37N, R11E, Sect. 5.
1550
Comment
UC82577
Astragalus canadensis var. brevidens
unknown
1892-6-20
Lassen
Milford
Comment
UCR119087
Astragalus curvicarpus
Beecher Crampton
1970-6-26
8639
Lassen
Modoc Plateau, 10 miles north of Milford along US-395.
1220
Comment
RSA111041
Astragalus curvicarpus
H. D. Ripley, R. C. Barneby, F. C. Ripley Jr.
1943-6-13
5676
Lassen
N or Doyle.
1265
Comment
RSA152593
Astragalus curvicarpus
I. L. Wiggins, Dorothy B. Wiggins
1961-6-11
16331
Lassen
13.5 mi. E of Susanville.
Comment
SEINET12165120
Astragalus curvicarpus var. curvicarpus
N. H. Holmgren, Holmgren, P. K.
1980-1
9504
Lassen
Observation Peak, S side of Mt, 11 mi airline distance E of Ravendale, T34N R16W S34
1890
Comment
CAS-BOT-BC182959
Astragalus filipes
M. S. Taylor
1982-5-29
4569
Lassen
Along dirt rd paralelling Hwy 395 on its e side, ca. 1/2 mi n of 395 jct with Scott Rd, ca. 20 mi n of Reno
1524
Comment
HSC82216
Astragalus filipes
Thomas W. Nelson, Jane P. Nelson
1980-7-6
6001
Lassen
Along Adin-Madelin Rd., 16 mi. E of Adin in Ash Valley
1555
Comment
JEPS125804
Astragalus filipes
William Harnach
2010-6-8
1244
Lassen
Honey Lake Valley, NE of Doyle, 2 miles west of the Nevada state line on Fort Sage Road.
Comment
SEINET3140019
Astragalus filipes
R. W. Spellenberg
1996-6-13
12334
Lassen
26 km S of Doyle on US Hwy 395
1430
Comment
CAS-BOT-BC182955
Astragalus filipes
T. C. Fuller
1965-8-26
14038
Lassen
Haskell Parks range, Diaz Flat, ca. 5 mi. e. of Hayden Hill, n.w. Lassen Co.
Comment
CAS-BOT-BC182956
Astragalus filipes
Alice Eastwood; John Thomas Howell
1940-6-16
8353
Lassen
Constantia
Comment
CAS-BOT-BC186860
Astragalus gibbsii
John Thomas Howell
1974-7-8
50462
Lassen
Susanville
1295
Comment
CAS-BOT-BC186864
Astragalus gibbsii
Doris Kildale Gillespie
1930-5-12
9348
Lassen
Between Susanville and Leavitt Lake
Comment
RSA110066
Astragalus gibbsii
H. D. Ripley, R. C. Barneby, F. C. Ripley Jr.
1942-5-22
4541
Lassen
Loyalton
1524
Comment
UC83864
Astragalus inversus
T. S. Brandegee
1892-7-1
Lassen
Susanville
Comment
UCD18950
Astragalus inversus
Raymond D. Ratliff
1965-8-5
42
Lassen
Lassen National Forest, Champ's Flat Allot. (CF 21-8).
1743
Comment
CAS-BOT-BC229047
Astragalus lemmonii
Marcus E. Jones
1897-6-19
s.n.
Lassen
Chat
1615
Comment
CHSC115597
Astragalus lemmonii
Lowell Ahart; John Dittes
2015-7-14
20336
Lassen
On the west side of the road, about 100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
1267
Comment
CHSC99730
Astragalus lemmonii
Lowell Ahart; John Dittes
2008-6-20
14968
Lassen
About 10 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7.0 miles (air) northeast of Bieber.
1263
Comment
RSA0074201
Astragalus lemmonii
L. T. Stephenson
1897-09
6448
Lassen
Chat, Sierra Valley
Comment
SEINET10486607
Astragalus lentiginosus
Billy Joe Cox, David B. Dunn
1971-6-2
Cox 3112
Lassen
6 mi n of hallelujah jct on us hwy 395, in artemisia tridentata, pinyon pine, Jeffery pine along high ridge and in sandy wash.
1402
Comment
UCD35735
Astragalus lentiginosus
Beecher Crampton
1960-6-20
5738
Lassen
Harvey Valley, 6 miles north of Bogard Ranger Station.
1676
Comment
CHSC5281
Astragalus lentiginosus var. floribundus
P. Collett
1946-6-20
Lassen
Eagle Lake. Grasshopper Valley.
1624
Comment
JEPS97410
Astragalus lentiginosus var. floribundus
Vernon H. Oswald
1995-6-19
6903
Lassen
T30N R16E NW1/4 SE1/4 Sect. 2, 4740 ft, Modoc Plateau, Sagebrush Scrub. Between Litchfield and Ravendale on Smoke Creek Ranch Rd., 8.5 mi e of Hwy. 395
1444
Comment
CHSC67216
Astragalus lentiginosus var. platyphyllidius
James D. Jokerst
1991-5-29
3310
Lassen
Modoc Plateau. Survey for reroute of Hwy. 139 at the N end of Eagle Lake, top of plateau E of N basin, W of N-S oriented dirt road.
1737
Comment
RSA0059601
Astragalus lentiginosus var. salinus
Lowell Ahart, John Dittes
2011-6-20
17510
Lassen
Near edge of the Ash Valley Road, 3,210 feet south of the Ash Creek Campground, about 6.5 (air) southeast of Adin.
1511
Comment
CAS-BOT-BC187561
Astragalus malacus
Mrs. C. C. Bruce
1898-6-1
2214
Lassen
Madaline Plains & Modoc
Comment
CDA26707
Astragalus malacus
T. C. Fuller
1963-6-11
10659
Lassen
West side of Highway 395 at road to Horse Lake, 1.5 miles south of Ravendale.
0
Comment
CHSC64786
Astragalus malacus
Vernon H. Oswald
1995-5-31
6814
Lassen
Modoc Plateau. Smoke Creek Ranch Rd. 2.4 mi e of Hwy. 395, between Litchfield and Ravendale.
1341
Comment
NY676232
Astragalus malacus
B. J. Cox
1971-6-2
2599
Lassen
Hallalujah Jct. intersection of U.S. Highway 395 and Calif. Highway 70
1433
Comment
UC1561919
Astragalus obscurus
Barbara Ertter with Gary Schoolcraft
1987-6-16
7184
Lassen
ridge w Hot Springs VABM (Skeedaddle Mountains on ne side Honey Lake); Skeedaddle Mountains, ne side Honey Lake, w of Hot Springs
2133
Comment
CAS-BOT-BC192842
Astragalus pulsiferae
Marcus E. Jones
1897-6-19
s.n.
Lassen
Chat
1615
Comment
JEPS87063
Astragalus pulsiferae
Dean Wm. Taylor with Glenn Clifton
1990-6-12
10877
Lassen
ca 0.5 mi before the Modoc County Line (road from Adin to Ash Valley (Forest Road 88)); Modoc Plateau, road from Adin to Ash Valley
1554
Comment Read comments Jan 31 2015
CHSC98311
Astragalus pulsiferae var. pulsiferae
R. Ondricek-Fallscheer
1999-7-2
196
Lassen
About 3/4 air mi SW of Hallelujah Junction (the junction of Hwy 70 and Hwy 395).
1499
Comment
NY694127
Astragalus pulsiferae var. pulsiferae
See comments
1981-6-23
614
Lassen
West of Susanville
1463
Comment
RSA104884
Astragalus pulsiferae var. pulsiferae
H. D. Ripley, R. C. Barneby
1943-6-17
5799
Lassen
East side of Beckwourth Pass.
1494
Comment
CHSC23489
Astragalus purshii
Waynes O. Baum
1971-7-16
71 -70
Lassen
W. slope of Gallatin Peak.
1981
Comment
CHSC25301
Astragalus purshii
Pauleen Broyles
1977-5-30
144
Lassen
Spencer's Basin ca 8 km n of Herlong.
1770
Comment
CHSC57280
Astragalus purshii var. lagopinus
Mary Meyer
1980-7-14
Lassen
Ash Valley.
1524
Comment
SEINET6654255
Astragalus purshii var. lagopinus
Stanley L. Welsh, N. Duane Atwood
2001-6-14
28157
Lassen
E of Hwy 395, rd to Rams Horn Spring campground.; 0
1539
Comment
CHSC60739
Astragalus purshii var. purshii
Vernon H. Oswald; Lowell Ahart
1993-6-14
5520
Lassen
Eagle Lake Rd. (Lassen A1) at Sandy Beach on the W shore of Eagle Lake, ca. 2.0 mi ENE of Spaulding Tract Rd. (Rd. 518, 33N89).
1566
Comment
JEPS127726
Astragalus purshii var. purshii
H. Chappel, K. Moran & K. Strassman
2002-6-27
ALT- 013
Lassen
Pit River Valley/Beaver Creek BLM land
Comment
JEPS114761
Astragalus purshii var. tinctus
Lowell Ahart, John Dittes
2008-6-19
14888
Lassen
Open hillside, about 100 yards east of Willow Creek, about 120 yards northeast of Highway 139, near Forest Road 36N02, about 19.6 miles east-southeast of Bieber
1578
Comment
UC1128894
Astragalus purshii var. tinctus
K. E. Bradshaw
1939-5-27
235
Lassen
Black Mountain Experimental Forest-Plot 39-1 center of plot Halls Flat Quad., Lassen National Forest
Comment
CAS-BOT-BC192974
Astragalus purshii var. tinctus
Doris Kildale Gillespie
1930-5-15
9386
Lassen
5 miles west of Susanville
Comment
RSA339987
Astragalus whitneyi
Noel Holmgren
1980-7-4
9514
Lassen
Observation Peak, south side of mountain, 18 km (11 mi) airline distance east of Ravendale.
2195
Comment
UC1128897
Astragalus whitneyi
A. Simontacchi
1940-6-6
824
Lassen
9.3 mi se Nigger Cabin; Lassen National Forest, Halls Flat Quad.
Comment
SEINET12162056
Astragalus whitneyi var. confusus
J. Vale, Wagnon, K.; Knight, W.; Knight, I.
1981-1
4136
Lassen
ca 3mi S of Adin on hwy.139
1372
Comment
UC1730231
Astragalus whitneyi var. whitneyi
L. P. Janeway
1998-7-8
5722
Lassen
ridgetop saddle 2.4 mi NW of Red Rock (along road 213, 0.1 mi E of jct of Roads 28N08, 29N10, 213, and 28N55); ; Ridgetop saddle about 2.4 mi northwest of Red Rock; along Road 213, 0.1 mi east of the junction of Roads 28N08, 29N10, 213, and 28N55.
1988
Comment
SEINET5344853
Atriplex canescens
S. Massed, Jared Jaggers, D. Mathews
2011-10-24
Seeds of Success. NV 030 . Carson
Lassen
Northeast of Doyle. On the Northern slopes of Fort Sage Mountains.
1291
Comment
CHSC109990
Atriplex canescens var. canescens
L. P. Janeway; B. Castro
2012-7-2
10920 B
Lassen
Modoc Plateau. Honey Lake Valley, northeast side of Honey Lake, 1.5 km north of Wendel, 0.8 km east of the road to Wendel.
1241
Comment
UC1537376
Atriplex confertifolia
Gordon H. True Jr.
1936-6-24
520
Lassen
n shore Honey Lake (Honey Lake Valley); n shore Honey Lake, Honey Lake Valley
1219
Comment
UC527347
Atriplex confertifolia
C. B. Wolf
1931-9-5
2402
Lassen
on road to Doyle 1/2 mi from Amedee R.R. station (Honey Lake Valley); , 1/2 mi from Amedee R.R. station
Comment
CAS-BOT-BC172656
Atriplex gardneri var. falcata
G. Schoolcraft
1989-5-16
1877
Lassen
In Secret Valley west of Hwy. 395
Comment
SEINET515855
Atriplex gmelinii
Vernon H. Oswald
1998-9-8
9581
Lassen
Ash Creek and Big Swamp 2.2 mi north of Bieber on County Road 91 (Bieber-Lookout Rd.)
1259
Comment
CHSC63701
Atriplex heterosperma
Vernon H. Oswald
1994-9-6
6467
Lassen
Willow Creek Wildlife Area on Hwy. 139, ca. 10 mi (air) N of Susanville.
1490
Comment
UCD97420
Atriplex hortensis
E. K. Balls; P. C. Everett
1952-10-10
18138
Lassen
1.7 miles NE of Standish, Hwy. 395 between Susanville and Alturas.
1249
Comment
CAS-BOT-BC106494
Balsamorhiza hookeri
Clarence Quick
1963-7-12
63 -38
Lassen
Blacks Mountain Experimental Forest east of Halls Flat
1859
Comment
CAS-BOT-BC106497
Balsamorhiza hookeri
John Thomas Howell; Gordon H. True; Margaret Williams
1973-5-12
49167
Lassen
In open yellow pine forest, Elysian Valley northwest of Janesville - Sierra Nevada
1325
Comment
JEPS19803
Balsamorhiza hookeri
Rimo Bacigalupi with S. Galen Smith
1957-6-28
6013
Lassen
ne of Karlo, along U.S. Highway 395 Karlo (near headwaters of Secret Cr., n of Secret Valley and w of Rye Patch Canyon)
1615
Comment
CAS-BOT-BC106490
Balsamorhiza hookeri
Ella Dales Cantelow
1941-5-22
3550
Lassen
Fredonyer Pass, 13 1/2 mi. w. of Susanville Hwy #36
Comment
UC1137703
Balsamorhiza sagittata
A. Simontacchi
1940-6-4
802
Lassen
7.0 mi sw of Jacks Lake (Halls Flat); Halls Flat
1828
Comment
SEINET10617243
Balsamorhiza sagittata
Paul Gallian, David B. Dunn
1971-6-2
Gallian 500
Lassen
Approx. 22 mi. S of Adin on CA Hwy. 139; in basalt; assoc: Juniper, Artemisia.
1646
Comment
CAS-BOT-BC16437
Barbarea orthoceras
George Wilson Gillett
1957-7-21
868
Lassen
Lassen Volcanic National Park. Juniper Lake - Cameron Meadow trail. 300 yards north of trail summit.
2118
Comment
RSA783700
Bassia hyssopifolia
R. R. Halse
2010-8-25
8088
Lassen
Along State Hwy 139 ca. 26.2 mi N of Susanville on NE shore of Eagle Lake.
1559
Comment
SJSU4353
Beckmannia syzigachne
J. W. Tilden
1960-6-27
1526
Lassen
5 mi E of Westwood on Moonlight Rd
1524
Comment
SJSU9993
Beckmannia syzigachne
C. L. Kline
1965-7-13
195
Lassen
1.8 mi E of Nubieber on Highway 299
2493
Comment
UC1100216
Beckmannia syzigachne
Herbert L. Mason
1947-7-9
13299
Lassen
5 mi e Bieber
Comment
CHSC111100
Bidens cernua
Lowell Ahart; John Dittes
2012-7-9
18295
Lassen
About 100 yards southeast of the tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
CHSC29912
Bidens cernua
Robin L. Ondricek
1978-8-26
125
Lassen
Below dam at Murrers Upper Meadow.
1548
Comment
HSC95266
Bidens cernua
Gordon Leppig
1998-8-17
1047
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
JEPS121281
Bidens cernua
Lowell Ahart, John Dittes
2013-7-23
18897
Lassen
S margin of a levee road, about 100 yards E of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley.
Comment
HSC42543
Bidens cernua
Barbara Kelly
1977-8-9
563
Lassen
15 miles east of Madeline on a dirt road from Adin
Comment
CHSC96712
Bidens cernua var. cernua
Gordon Leppig
1998-8-17
1047
Lassen
Modoc National Forest, Blue Lake Ranch. Peatland in large meadow complex.
1970
Comment
CHSC4759
Bistorta bistortoides
R. Carter
1967-7-14
613
Lassen
Hog Flat Reservoir, between highway 92 and shore of reservoir in grassy open area.
Comment
CHSC60760
Bistorta bistortoides
Vernon H. Oswald; Lowell Ahart
1993-6-3
5484
Lassen
Champs Flat Rd. (Lassen 105), Forest 32N28Y), 2.4 mi N of its junction with Lassen 21 (32N02) to Eagle Lake, on the W edge of Pine Creek Valley, between Poison Lake and Susanville.
1728
Comment
HSC23511
Bistorta bistortoides
B. Anthony
1967-7-14
290
Lassen
5.3 mi. from jct. of Hwy. 44 and rd. to Silver Lake
1799
Comment
CAS-BOT-BC127957
Blepharipappus scaber
David D. Keck; J. Clausen
1935-6-24
3733
Lassen
2 mi. S. of Ravendale
1463
Comment
CAS-BOT-BC127972
Blepharipappus scaber
Ella Dales Cantelow
1941-5-22
3551
Lassen
U. S. Hy 395 n. of Litchfield
Comment
CAS-BOT-BC128037
Blepharipappus scaber
Doris Kildale Gillespie
1930-5-12
9340
Lassen
2 miles north of Susanville on road to Alturas
Comment
CAS-BOT-BC128042
Blepharipappus scaber
David D. Keck; J. Clausen
1935-6-24
3733
Lassen
2 mi. S. of Ravendale
1463
Comment
CHSC68732
Blepharipappus scaber
Vernon H. Oswald; Lowell Ahart
1997-5-27
8484
Lassen
East side of Hwy. 139 at a small farm pond 38.2 mi north of Susanville, 7.4 mi north of Eagle Lake Rd.
1627
Comment
CHSC92756
Blepharipappus scaber
L. P. Janeway
2005-7-4
8462
Lassen
High Cascade Range. Ridge top north above Long Valley; 0.4 km west of Road 34N41.
1752
Comment Read comments May 24 2013
JEPS126561
Blepharipappus scaber
Lowell Ahart, John Dittes
2016-6-7
20977
Lassen
About 100 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 (air) southwest of Adin, hills at the southern slope of Big Valley.
Comment
JEPS22625
Blepharipappus scaber
R. F. Hoover
1940-9-28
4633
Lassen
Susanville
Comment
RSA768023
Blepharipappus scaber
L. Ahart, John Dittes
2010-7-31
16980
Lassen
About 100 yards northeast of where the road crosses Hunsinger Draw, 1.9 air miles northwest of Moll Reservoir, 2.8 air miles west of Ash Valley, 8.4 air miles southeast of Adin
1521
Comment
UC1302428
Blepharipappus scaber
Clare B. Hardham
1961-6-16
7451
Lassen
s of Susanville (Gold Run Creek, Sierra Nevada Mountains); Sierra Nevada Mountains, Gold Run Creek
Comment
UC773892
Blepharipappus scaber
L. R. Short
1936-6-10
S- 415
Lassen
Burgess Spr. Exp. Range
1798
Comment
UCD129606
Blepharipappus scaber
Grady L. Webster
1989-5-13
7708
Lassen
2.5 miles E of Beckworth Pass.
1493
Comment
SEINET3132721
Blepharipappus scaber
J. L. Strother
1970-5-13
953
Lassen
ca. 6 mi. N of Honey Lk.
1280
Comment
UC1181375
Blepharipappus scaber
R. W. Thorp and G. I. Stage
1960-6-11
60 -63
Lassen
6.5 mi north of Termo
Comment
UCD129601
Blepharipappus scaber
Bob Powell; Vic Claussen
1986-7-17
3274
Lassen
6 air miles south - southwest of Nubieber, within 100 feet of gate across main north-south trending road.
1402
Comment
RSA0125855
Boechera
Christopher Davidson
1975-6-6
2723
Lassen
3.9 miles from jct of county roads 204 and 205 on road 204 along Gold Run Creek, SW of Susanville.
1395
Comment
CAS-BOT-BC16148
Boechera covillei
John Thomas Howell; Gordon H. True; Wayne Dakan
1974-7-30
50672
Lassen
Sierra Nevada. Summit ridge of Diamond Mountain.
2346
Comment
CAS-BOT-BC14090
Boechera pauciflora
John Thomas Howell; Gordon H. True
1973-8-1
50161
Lassen
Sierra Nevada. Diamond Range. Gold Run Creek road south of Susanville.
1584
Comment
JEPS53091
Boechera pauciflora
Jos. Grinnell
1928-6-16
Lassen
Eagle Lake
1584
Comment
CHSC68739
Boechera pinetorum
Vernon H. Oswald; Lowell Ahart
1997-5-27
8483
Lassen
East side of Hwy. 139 at a farm pond 38.2 mi north of Susanville, 7.4 mi north of Eagle Lake Rd.
1627
Comment
CHSC99134
Boechera puberula
Lowell Ahart; John Dittes
2008-6-19
14883
Lassen
Open hillside, about 100 yards east of Willow Creek, about 120 yards northeast of Highway 139, near Forest Road 36N02, about 19.6 miles east-southeast of Bieber.
1578
Comment
CAS-BOT-BC14712
Boechera repanda
John Thomas Howell; Gordon H. True
1973-8-1
50218
Lassen
Sierra Nevada. Headwaters of Baxter Creek, east slope of Diamond Range, south of Susanville.
2164
Comment
JEPS118280
Boechera retrofracta
Lowell Ahart, John Dittes
2011-6-20
17509
Lassen
Graded edge of the Ash Valley Road, 3,120 feet south of Ash Creek Campground, about 6.5 miles (air) southeast of Adin
1511
Comment
SEINET12627116
Boechera retrofracta
Martin Schilling
2013-1
MS 257
Lassen
Hat Creek overlook area, off Hwy 44, 2.86 air mi E of Sugarloaf Peak, 5 air mi NE of Hat Creek Hill, on W-facing slope, between rocks
1500
Comment
UC1143032
Boechera retrofracta
L. R. Short
1936-6-1
S- 354
Lassen
Burgess Spring Experimental Range Lassen National Forest
1859
Comment
JEPS111471
Boechera retrofracta
B. A. Roy, J. W. Kirchner
1996-5-11
Lassen
SE of Susanville, off highway 36. 9.8 miles up Gold Run Road (follow Richmond Rd. (E) to Gold Run Road (E) on side of Diamond Mtn.
Comment
CHSC60729
Boechera sparsiflora
Vernon H. Oswald; Lowell Ahart
1993-6-14
5546
Lassen
Eagle Lake Rd. (Lassen A1) at Sandy Beach on the W shore of Eagle Lake, ca. 2.0 mi ENE of Spaulding Tract Rd. (Rd. 518, 33N89). On the N side of the road.
1566
Comment
CHSC99127
Boechera sparsiflora
Lowell Ahart; John Dittes
2008-6-19
14885
Lassen
Open hillside, about 100 yards east of Willow Creek, about 120 yards northeast of Highway 139, near Forest Road 36N02, about 19.6 miles east-southeast of Bieber.
1578
Comment
JEPS88209
Boechera sparsiflora
Vernon H. Oswald and Lowell Ahart
1996-6-17
7774
Lassen
ca. 7 mi. w. Susanville (Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36, slope at the bridge spanning the Susan R. on n. side of Hwy 36); Modoc Plateau, Bizz Johnson Trail
1432
Comment
POM253282
Boisduvalia densiflora var. pallescens
A. A. Heller
1938-7-28
15296
Lassen
About a mile east of Westwood
1524
Comment
RSA32754
Boisduvalia macrantha
A. A. Heller
1938-7-28
15295
Lassen
About a mile east of Westwood
1524
Comment
UC1137774
Brodiaea coronaria subsp. coronaria
August L. Hormay
1934-7-2
Lassen
Black Mtn. Headquarters Lassen National Forest
1706
Comment
CAS-BOT-BC144333
Bromus
R. E. Frenkel
1964-7-12
666
Lassen
On California Highway 299, 1.5 mile west of Bieber.
1249
Comment
CAS-BOT-BC149585
Bromus carinatus var. carinatus
Marcus E. Jones
1897-6-26
s.n.
Lassen
Susanville. Perkin's Ranch.
1463
Comment
UC506924
Bromus carinatus var. carinatus
George A. Fischer, Irwin H. Johnson
1933-7-14
F 251
Lassen
Lassen National Forest
1767
Comment
UC1024682
Bromus ciliatus
Leo Whitney
1934-7-26
2164
Lassen
7-8 mi sw of Eagle Lake (near Bridge Creek, Lassen National Forest, Bridge Creek Camp); Lassen National Forest, Bridge Creek Camp
1737
Comment
JEPS95805
Bromus commutatus
Vernon H. Oswald and L. Ahart
1999-6-9
9750
Lassen
Northeast of Susanville on County Rd. 216 at Biscar Wildlife Management Area: T31N R15E SE1/4 Sect. 18, 4440 ft elevation, sagebrush scrub
1353
Comment
POM264546
Bromus commutatus
A. A. Beetle
1941-6-28
2817
Lassen
6 miles south of Ravendale, lower slopes of Observation Peak.
Comment
CAS-BOT-BC155323
Bromus inermis
John Thomas Howell; Gordon H. True
1973-8-1
50221
Lassen
Sierra Nevada. East slope of Diamond Range south of Susanville.
2164
Comment
CDA1829
Bromus japonicus
A. A. Beetle
1941-6-28
2817
Lassen
6 miles south of Ravendale, lower slopes of Observation Peak.
0
Comment
CHSC64901
Bromus japonicus
Vernon H. Oswald; Lowell Ahart
1995-6-19
6874
Lassen
Modoc Plateau. Between Litchfield and Ravendale on Smoke Creek Ranch Rd., 0.3 mi e of Hwy. 395.
1383
Comment
OBI82789
Bromus japonicus
Robert L. Johnson, Mikel R. Stevens
2015-7-10
3923
Lassen
1.9 rd miles west of jct with Hwy 395 on Dawn Dr on E side of Shaffer Mountain. Ca 18 air mi ene of downtown Susanville.; 0
1545
Comment
SEINET10717734
Bromus japonicus
Vernon H. Oswald, Lowell Ahart
1999-6-9
Oswald 9750
Lassen
T31N R15E SE 1/4 Sect. 18. Northeast of Susanville on County Rd. 216 at Biscar Wildlife Management Area.
Comment
UC1131320
Bromus marginatus
H. P. Hagge
1929-9-14
33
Lassen
Logan Mountain
1828
Comment
POM112560
Bromus secalinus
Marcus E. Jones
1897-6-21
s.n.
Lassen
Chat.
1616
Comment
UC53747
Bromus secalinus
J. Burtt Davy
Jun 17 1897-Jun 24 1897
Lassen
Honey Lake Valley
Comment
UC1136819
Bromus suksdorfii
George A. Fischer and Irwin H. Johnson
1933-7-14
F 261
Lassen
Lassen National Forest
1783
Comment
CDA1862
Bromus tectorum
A. A. Beetle
1941-6-28
2796
Lassen
Rte. 36, 10 miles west of Chester.
0
Comment
CHSC44553
Bromus tectorum
Lowell Ahart; John Thomas Howell
1974-7-9
520
Lassen
Along the edge of Eagle Lake Road, about 5 miles north-west of Susanville.
1584
Comment
UC1131267
Bromus tectorum
H. S. Yates
1936-8-12
6085
Lassen
McKenzie Meadow
1524
Comment
UCD59756
Bromus tectorum
August L. Hormay
1932-5-20
s.n.
Lassen
Lassen National Forest. Hat Creek.
Comment
UCD59853
Bromus tectorum
August L. Hormay
1929-5-20
s.n.
Lassen
Hat Creek, Lassen National Forest.
Comment
SEINET10515057
Bromus tectorum
Billy Joe Cox, David B. Dunn
1971-6-2
Cox 3117
Lassen
6 mi n of hallelujah jct on us hwy 395, in artemisia tridentata, pinyon pine, Jeffery pine along high ridge and in sandy wash.
1402
Comment
SEINET4564906
Bromus tectorum
F. B. Headley
1915-5-28
s.n.
Lassen
Honeylake
Comment
JEPS114632
Calandrinia ciliata
Lowell Ahart, John Dittes
2008-6-22
15030
Lassen
On the banks of a small natural drainage, about 120 yards west of the road levee, open meadow area, in Big Valley, about 2.1 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 5.0 miles (air) northeast of Bieber
1262
Comment
UC17869
Callitriche verna
M. S. Baker and Frank Nutting
1894-7-2
Lassen
s side Dixie Mts.
Comment
HSC15373
Calochortus bruneaunis
M. T. Milligan
1964-8-6
209
Lassen
Eagle Lake, near shore at Eagle Lake General Store.
1677
Comment
HSC15427
Calochortus coeruleus
H. E. Parks, S. T. Parks
Jun 1928
9253
Lassen
Lake Almanor
Comment
CHSC4921
Calochortus leichtlinii
L. G. Bennett
1967-6-24
24
Lassen
0.5 miles from start of road 5.19 towards Murrers Meadow, near Eagle Lake.
1493
Comment
CHSC67072
Calochortus leichtlinii
Willis Ball
1969-6-20
15
Lassen
Found approx. 1 mile S. E. of E. L. B. S. about 50 ft. off the dirt road to the station.
1584
Comment
UC423015
Calochortus leichtlinii
Franklin P. Nutting
Lassen
Pine Creek
Comment
UC727118
Calochortus leichtlinii
A. A. Heller
1938-6-23
15200
Lassen
e of Fredonyer Pass
1219
Comment
POM109563
Calochortus leichtlinii
Marcus E. Jones
1897-6-28
s.n.
Lassen
Diamond Mountain; Susanville; Perkins Ranch.
1829
Comment
RSA377380
Calochortus leichtlinii
Christopher Davidson
1974-7-25
2498
Lassen
Lassen Volcanic National Park, road to Juniper Lake
2134
Comment
SEINET3260040
Calochortus macrocarpus
Marcus E. Jones
1897-7-1
Lassen
Susanville at Perkin's Ranch.
1520
Comment
RSA0120949
Caltha biflora
K. M. Meyer, A. Townesmith
2007-7-21
145
Lassen
Lassen National Forest. 3.3 miles on road 110, off Hwy A21.
1920
Comment
SEINET10675935
Caltha leptosepala var. biflora
Karen M. Meyer, Andrew Townesmith
2007-7-21
Meyer 145
Lassen
Lassen National Forest. 3.3 mi. on rd. 110, off Hwy. A21.
1920
Comment
JEPS17206
Calyptridium umbellatum
Frances D. Payne
1929-7-12
101
Lassen
Lost Lake, Camp I Lost Lake; Warner Mountains, , Camp I
2286
Comment
HSC15434
Camassia quamash subsp. breviflora
H. E. Parks, S. T. Parks
Jun 1928
220
Lassen
Lassen National Park, Drakesbad
1768
Comment
UC1134560
Camassia quamash subsp. breviflora
A. Simontacchi
1940-5-17
736
Lassen
5.9 mi s of Patterson Mountain (Lassen National Forest); Lassen National Forest
1706
Comment
HSC15435
Camassia quamash subsp. breviflora
Jim Vaughn
1956-7-13
Lassen
Drakesbad, Mt. Lassen Natl. Park
1738
Comment
HSC69078
Camissonia boothii subsp. alyssoides
Gary Schoolcraft
1980-5-16
234
Lassen
N of Kiln on Wendel Hwy.
1280
Comment
RSA294814
Camissonia boothii subsp. alyssoides
Arnold Tiehm
1980-5-29
5754
Lassen
North end of Honey Lake Valley, 2 air miles NW of Wendel.
1232
Comment
NY851536
Camissonia minor
A. Tiehm
1980-5-29
5752
Lassen
North end of Honey Lake Valley, 2 air miles northwest of Wendel
1231
Comment
CHSC93567
Camissonia parvula
Lowell Ahart; John Dittes
2005-6-2
11938
Lassen
Long Valley, along a poor dirt road, about 1 1/2 miles northeast of the Anderson Ranch home, about 6 miles (air) north of the interesection of Scott Road and Highway 70, 7.5 miles (air) northwest of Hallelujah Junction.
1600
Comment
RSA186551
Camissonia parvula
Peter H. Raven
1962-5-28
17870
Lassen
Along U.S. Highway 395, 32 miles south of Milford
Comment
NY851778
Camissonia pubens
W. W. Eggleston
1911-5-29
6741
Lassen
Vicinity of Doyle Station
1290
Comment
HSC30037
Camissonia tanacetifolia
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19153
Lassen
3 mi. N of Westwood
Comment
NY852070
Camissonia tanacetifolia
A. R. Kruckeberg
1954-6-22
3322
Lassen
6 miles south of Likely on Highway 395
Comment
POM38369
Camissonia tanacetifolia subsp. quadriperforata
F. H. Hillman
1897-7-12
s.n.
Lassen
Chat.
Comment
CAS-BOT-BC160868
Camissonia tanacetifolia subsp. tanacetifolia
M. S. Baker; Frank Nutting
1894-8-21
s.n.
Lassen
Near Eagle Lake
1524
Comment
CAS-BOT-BC160875
Camissonia tanacetifolia subsp. tanacetifolia
Noel H. Holmgren; Patricia K. Holmgren
1980-7-3
9477
Lassen
Madeline Plains, a valley road 1.1 km (0.7 mi) west of US Highway 395 from a turnoff 10.3 km (6.4 mi) south of Madeline
1620
Comment
CAS-BOT-BC160879
Camissonia tanacetifolia subsp. tanacetifolia
John Thomas Howell; Gordon H. True
1973-8-1
50209
Lassen
Headwaters of Baxter Creek. East slope of Diamond Range south of Susanville
2164
Comment
POM38821
Camissonia tanacetifolia subsp. tanacetifolia
Marcus E. Jones
1897-6-18
s.n.
Lassen
Chat. [also Chats, a former settlement]
1524
Comment
RSA512846
Camissonia tanacetifolia subsp. tanacetifolia
J. T. Howell, Gordon H. True
1973-8-1
50209
Lassen
Sierra Nevada: Headwaters of Baxter Creek, east slope of Diamond Range, south of Susanville.
2165
Comment
UC1137752
Capsella bursa-pastoris
L. R. Short and J. Warren
1936-6-9
S 408
Lassen
Lassen National Forest, Burgess Spring Experiment Range Burgess Spring Experiment Range; Lassen National Forest, Burgess Spring Experiment Range
1844
Comment
JEPS94549
Cardamine breweri
Vernon Oswald and Lowell Ahart
1997-6-24
8618
Lassen
2.7 mi e of boundary of Lassen National Forest (s of Susanville, on n side of Diamond Mountain at an impoundment on the edge of Forest Road 29N43, 7.4 mi e of Gold Run Road (29N10)); Diamond Mountain, Forest Road 29N43
2036
Comment
NY119877
Cardamine breweri
R. C. Rollins
1981-5-30
81168
Lassen
Gold Run Road, toward Ski Line Drive, 10 miles S of Susanville
Comment
UC10332
Cardamine breweri
M. S. Baker and Frank Nutting
1894-7-9
Lassen
Pine Creek
Comment
UC1609211
Cardamine breweri
Vernon H. Oswald and Lowell Ahart
1993-8-3
5743
Lassen
ca 13 mi (air) n. Lake Almanor (s.w. edge Cooper Swamp located e. of Silver Lake just e. of the Caribou Wilderness); Cooper Swamp
1932
Comment
UC197292
Cardamine breweri
Franklin P. Nutting
Lassen
Pine Creek
Comment
UC1494954
Cardamine nuttallii
Reed C. Rollins and Kathryn W. Rollins
1981-5-30
81166
Lassen
Gold Run Road toward Sky Line Drive 10 mi s Susanville; s of Susanville
Comment
UC1137782
Carex
August L. Hormay
1934-5-14
Lassen
Gray's Flat Well Lassen National Forest
1706
Comment
JEPS28340
Carex abrupta
George W. Gillett
1957-7-21
867
Lassen
300 yards n trail summit (Juniper Lake - Cameron Meadow trail); Lassen Volcanic National Park
2118
Comment
RSA702447
Carex abrupta
L. P. Janeway
2004-6-26
8170
Lassen
High Cascade Range; Along Road 33N15 (Lassen Trail) between Patterson Flat and Aspen Flat; Blacks Mountain Experimental Forest.
1790
Comment
CAS-BOT-BC17908
Carex angustata
George Wilson Gillett
1957-7-22
883
Lassen
Lassen Volcanic National Park. South Shore of Snag Lake. 100 yards from lake.
1850
Comment
CHSC76790
Carex angustata
L. P. Janeway
1999-9-5
6574
Lassen
High Cascade Range. Upper Pine Creek near Stephens Camp; northwest corner of Upper Stephens Meadow.
1900
Comment
HSC97144
Carex angustata
L. P. Janeway
2003-7-24
7912
Lassen
High Cascade Range. Along end of meadow and marsh along Bridge Creek, 1.8 km. N of Hwy. 44, just NW of the Cinder Pit
1716
Comment
JEPS63614
Carex angustata
Leland S. Smith
1922-7-30
68
Lassen
Martin Spring Meadow Lassen National Forest
Comment
CAS-BOT-BC18104
Carex athrostachya
John Thomas Howell
1973-7-10
49780
Lassen
Sierra Nevada. Fredonyer Pass.
1737
Comment
SEINET7550662
Carex athrostachya
L. P. Janeway
2004-6-26
8158
Lassen
High Cascade Range. At Patterson Well in Patterson Flats; Black Mountains Experimental Forest. Poison Lake 7.5' quad.
1767
Comment
UC2031878
Carex bolanderi
Nick Otting
2003-7-17
701
Lassen
Cascade Mountains, Susan River,3.25 air miles west of Susanville.
Comment
CAS-BOT-BC20650
Carex douglasii
John Thomas Howell; Gordon H. True; Margaret Williams
1973-5-12
49192
Lassen
Sierra Nevada. Elysian Valley northwest of Janesville.
1325
Comment
POM80614
Carex douglasii
Marcus E. Jones
1897-6-21
s.n.
Lassen
Chat.
1616
Comment
SEINET10823343
Carex douglasii
Gordon H. True
1939-6-15
True 996
Lassen
Bullard Lake west of Grasshopper Valley.
Comment
JEPS118277
Carex filifolia var. erostrata
Lowell Ahart, John Dittes
2011-6-20
17501
Lassen
About 40 yards west of the stream, about 50 yards northwest of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin
1520
Comment
JEPS87492
Carex filifolia var. erostrata
Vernon H. Oswald and Lowell Ahart
1993-6-3
5472
Lassen
Champs Flat Rd (Lassen 21/105, Forest 32N02) 1.8 mi n Hwy. 44 (between Poison Lake and Susanville)
1725
Comment
UC1142952
Carex filifolia var. erostrata
A. L. Hormay
1941-6-26
238
Lassen
Bogard Ranger Station Lassen National Forest, Pine Creek
1706
Comment
HSC103600
Carex fracta
Thomas W. Nelson, Jane Nelson
1985-8-10
8011
Lassen
Along north side of Silver Lake
1829
Comment
CAS-BOT-BC20940
Carex heteroneura
George Wilson Gillett
1957-7-21
865
Lassen
Below (north of) summit of trail between Juniper Lake and Cameron Meadow.
2118
Comment
SEINET7587561
Carex heteroneura
George W. Gillett
1957-7-28
937
Lassen
Lassen Volcanic National Park, Widow Lake.
2073
Comment
CHSC61065
Carex heteroneura var. heteroneura
Vernon H. Oswald; Lowell Ahart
1993-8-3
5744
Lassen
Cooper Swamp located E of Silver Lake just E of the Caribou Wilderness, ca. 13 mi (air) N of Lake Almanor.
1932
Comment
CHSC61066
Carex lasiocarpa
Vernon H. Oswald; Lowell Ahart
1993-8-3
5752
Lassen
Cooper Swamp located E of Silver Lake just E of the Caribou Wilderness, ca. 13 mi (air) N of Lake Almanor. In the NW part of the swamp.
1932
Comment
UC1609339
Carex lasiocarpa
Vernon H. Oswald and Lowell Ahart
1993-8-3
5752
Lassen
e Silver Lake (nw part of the swamp, just e of the Caribou Wilderness, ca. 13 mi (air) n of Lake Almanor); Cooper Swamp
1932
Comment
CAS-BOT-BC31439
Carex leporinella
Hans Leschke
1945-9-15
s.n.
Lassen
Near Twin Lakes, Mt. Lassen
Comment
CHSC97050
Carex limosa
Gordon Leppig; J. Cromwell
1997-7-27
610
Lassen
Modoc National Forest. Blue Lake Ranch.
1970
Comment
CAS-BOT-BC31697
Carex mariposana
John Thomas Howell; Gordon H. True
1973-7-31
50045
Lassen
On road from Janesville to Thompson Peak, Diamond Range.
1783
Comment
CHSC67310
Carex microptera
James D. Jokerst
1991-5-28
3295
Lassen
Modoc Plateau. At the N end of Eagle Lake, seep E and adjacent to highway at spring shown on USGS map.
1554
Comment
CAS-BOT-BC31946
Carex microptera
Clare B. Hardham
1971-8-22
18373
Lassen
Streamside, Diamond Mt.
2346
Comment
CHSC59187
Carex multicaulis
Vernon H. Oswald; Lowell Ahart
1992-9-15
5217
Lassen
Lassen Volcanic National Park. Ca. 0.3 mi SW of Island Lake, on the NW foot of Bonte Pk., ca. 1.5 mi E of Juniper Lake campgrounds.
2133
Comment
CAS-BOT-BC32195
Carex multicaulis
H. D. Ripley; R. C. Barneby
1943-6-14
5730
Lassen
Fredonyer Pass
1676
Comment
CHSC25908
Carex nebrascensis
K. R. Stern
1967-4-24
2409
Lassen
Murrer Meadow, ca. 3 mi. SE of Eagle Lake Biological Station.
1554
Comment
CHSC66411
Carex nebrascensis
Vernon H. Oswald; Lowell Ahart
1996-6-17
7813
Lassen
Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville. Modoc Plateau. On the edge of the trail at the 6.0 mile post E of Devils Corral Trailhead.
1420
Comment
JEPS120112
Carex nebrascensis
Lowell Ahart, John Dittes
2012-7-9
18298
Lassen
About 150 yards southeast of the tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
Comment
RSA755319
Carex nebrascensis
L. Ahart, John Dittes
2008-6-22
15019
Lassen
On the north side of the levee, about 90 yards east of the tall poles, mountain meadow, in Big Valley, about 3.5 air miles northeast of the Headquarters at Ash Creek State Wildlife Area, about 5.5 air miles northeast of Bieber.
1261
Comment
UC1100497
Carex nebrascensis
Verne Grant and Herbert L. Mason
1947-7-9
13301
Lassen
5 mi e Bieber
Comment
UC1142949
Carex nebrascensis
A. L. Hormay
1941-6-18
7
Lassen
Little Harvey Valley Lassen National Forest
1676
Comment
SEINET7484007
Carex pachycarpa
W. W. Eggleston
1927-1
21485
Lassen
Bogard Ranger Station, Lassen Forest.
1500
Comment
UC2031883
Carex pellita
Nick Otting
2003-7-16
691
Lassen
Modoc Plateau, Smoke Creek, 14 air miles southeast of Ravendale.
Comment
UC1755280
Carex petasata
Dean W. Taylor
2007-6-14
20126
Lassen
stream channel draining Lower Gooch Valley into Gordon Valley [dry on this date in a very dry year, stream channel with fluvial geomorphology indicating flow in spring on average]
1828
Comment
SEINET7572131
Carex praegracilis
Lowell Ahart, John Dittes
2005-6-1
11879
Lassen
About 3/4 mile west of Scott Road, Long Valley, about 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.9 miles (air) northwest of Hallelujah Junction.
1470
Comment
UC190401
Carex praegracilis
M. S. Baker and Frank Nutting
1894-7-6
Lassen
Dixie Valley
Comment
CAS-BOT-BC118740
Carex preslii
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49455
Lassen
Elysian Valley, west of Janesville
1325
Comment
JEPS28380
Carex raynoldsii
George W. Gillett
1957-7-29
948
Lassen
along trail between Butte Lake and Sang Lake; Lassen Volcanic National Park
1859
Comment
CAS-BOT-BC118025
Carex rossii
Peter H. Raven; Otto Thomas Solbrig
1958-6-16
13245
Lassen
5.7 mi W of Westwood on St Hwy 36.
Comment
CAS-BOT-BC118029
Carex rossii
John Thomas Howell; Gordon H. True
1959-9-23
s.n.
Lassen
N end of Juniper Lake, Lassen Park.
2057
Comment
CHSC53538
Carex rossii
L. P. Janeway; Gary Benson, Randy Harrison
1984-8-23
1057 B
Lassen
On southwest side of Blue Lake.
1889
Comment
HSC48183
Carex rossii
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19243
Lassen
2 mi. N of Westwood
Comment
HSC48218
Carex rossii
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19222
Lassen
2 mi. N of Westwood
Comment
CHSC99507
Carex sheldonii
Lowell Ahart; John Dittes
2008-6-22
15045
Lassen
High dry bank of a levee, north of the old barn, east of the dirt road, open meadow area, in Big Valley, about 4.5 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7.5 miles (air) northeast of Bieber.
1267
Comment
CAS-BOT-BC117700
Carex simulata
Alice Eastwood; John Thomas Howell
1940-6-15
8305
Lassen
Willow Creek near Hayden Hill.
Comment
CHSC110302
Carex simulata
L. P. Janeway; B. Castro
2012-7-2
10930
Lassen
Modoc Plateau. East side of Skedaddle Mountains; large meadows along Skedaddle Creek, just upstream from 'Skedaddle Ranch.
1600
Comment
CHSC96453
Carex simulata
Gordon Leppig; J. Cromwell
1997-7-27
619
Lassen
Modoc National Forest. Blue Lake Ranch.
1970
Comment
HSC95226
Carex simulata
Gordon Leppig
1998-8-17
1046
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
CAS-BOT-BC116607
Carex subfusca
Clare B. Hardham
1971-8-22
18383
Lassen
Diamond Mountain streambed.
2133
Comment
CAS-BOT-BC116618
Carex subfusca
B. Clear
1938-7-14
s.n.
Lassen
Lily Ponds, Manzanita Lake, Lassen Park.
1781
Comment
CHSC60439
Carex utriculata
Mary Ann Showers
1992-6-13
2544
Lassen
Lassen Volcanic National Park. Shoreline at western end of Widow Lake.
2072
Comment
UC1142963
Carex utriculata
A. L. Hormay
1941-6-17
24
Lassen
near Westwood (Meadow Lake); Lassen National Forest
1615
Comment
CAS-BOT-BC115062
Carex vesicaria
George Wilson Gillett
1957-7-22
879
Lassen
South shore of Snag Lake, margin of gravel bars 100 yards from lake.
1850
Comment
HSC95285
Carex vesicaria
Gordon Leppig
1998-8-17
1040
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
HSC103632
Carex vesicaria
Thomas W. Nelson, Jane Nelson
1985-8-10
8027
Lassen
Silver Lake, along north side of arm on east side of lake.
1829
Comment
SEINET7579960
Carex vesicaria
George W. Gillett
1957-7-22
879
Lassen
Lassen Volcanic National Par, Snag Lake, matin of gravel bars along south shore.
1850
Comment
CAS-BOT-BC114879
Carex whitneyi
Beecher Crampton
1964-6-26
7075
Lassen
Ca 4 mi SSE Bogard Ranger Station, Lassen National Forest.
Comment
RSA220022
Carex whitneyi
Beecher Crampton
1964-6-26
s.n.
Lassen
Ca. 4 miles SSE Bogard Ranger Station, Lassen National Forest.
Comment
CHSC67068
Castilleja applegatei
Willis Ball
1969-6-20
20
Lassen
Found approx. 2 mls. down from Dean's Meadow going towards 5 pts.
1828
Comment
UC1483848
Castilleja applegatei
G. Schoolcraft
1979-7-5
123
Lassen
se of Observation Mountain Lookout (top of Observation Mountain); Observation Mountain
2407
Comment
CAS-BOT-BC249340
Castilleja applegatei
Gary Schoolcraft
1983-7-19
1097
Lassen
S. slopes of Fredonyer Pk. 33-12-27
2255
Comment
JEPS76164
Castilleja applegatei subsp. pallida
T. I. Chuang with Fei-Mei Chuang
1977-7-25
7659
Lassen
7.1 mi W of Madeline (on road to Adin)
Comment
CAS-BOT-BC249611
Castilleja applegatei subsp. pinetorum
John Thomas Howell; Gordon H. True; Wayne Dakan
1974-7-30
50645
Lassen
South and southeast of Diamond Mt.
2286
Comment
CAS-BOT-BC249613
Castilleja applegatei subsp. pinetorum
G. Schoolcraft
1987-5-6
1699
Lassen
North end of Eagle Lake near Stone Ranch
1554
Comment
CHSC13732
Castilleja applegatei subsp. pinetorum
Cornell Freeman
1973-7-11
5
Lassen
Found on Gallatin Pk. on the east side of Eagle Lake.
Comment
CHSC23477
Castilleja applegatei subsp. pinetorum
Wayne O. Baum
1971-7-6
71 -36
Lassen
E. slope of Gallatin Peak.
1920
Comment
CHSC36484
Castilleja applegatei subsp. pinetorum
Margaret E. Halloran
1982-6-3
5
Lassen
3 1/2 mi s of jct of forest service roads 5.16 and 5.17.
Comment
JEPS17616
Castilleja applegatei subsp. pinetorum
Rimo Bacigalupi with G. T. Robbins
1955-7-20
5411
Lassen
4.4 mi s Patterson Ranger Station (e edge of Long Valley); Warner Mountains, Modoc National Forest, Long Valley Meadow
2057
Comment
UC1563850
Castilleja arachnoidea
Barbara Ertter
1988-7-25
7861
Lassen
ca 1.5 mi e Diamond Peak (ca 10 air mi due s of Susanville, ridge of Diamond Mts); Diamond Mts.
2286
Comment
UC1609116
Castilleja arachnoidea
Vernon Oswald and Lowell Ahart
1993-6-14
5525
Lassen
2.0 mi ene Spaulding Tract Rd. (Rd. 518,33N89) (Eagle Lake Rd (Lassen A1), at Sandy Beach, on the w shore of Eagle Lake, on the upper beach between the road and the lake); Eagle Lake
1566
Comment
SBBG7046
Castilleja campestris
H. and M. Dearing
1939-6-6
3565
Lassen
marsh on Pitt River, Bieber
Comment
CHSC5897
Castilleja campestris subsp. campestris
J. B. Kimsey
1946-6-11
Lassen
Pine Creek near Eagle Lake.
1584
Comment
JEPS87488
Castilleja campestris subsp. campestris
Vernon H. Oswald and Lowell Ahart
1993-7-8
5644
Lassen
near se end Poison Lake (0.4 mi n of Highway 44, Pittville Rd (Lassen 111,36N01), near its intersection with 33N11); near se end Poison Lake
1709
Comment
OBI48148
Castilleja chromosa
Rhonda Riggins
1989-4-27
1639
Lassen
Wash through volcanic boulder pavement, US 395, 8.4 mi N Litchfield, 26.6 mi S Ravendale
1311
Comment
CHSC117210
Castilleja lacera
Lowell Ahart; John Dittes
2016-6-7
20993
Lassen
West of pond, 110 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley.
1289
Comment
CHSC66262
Castilleja lacera
Vernon H. Oswald; Lowell Ahart
1996-6-24
7842
Lassen
Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake. Modoc Plateau, Montana Meadow.
1633
Comment
CHSC92738
Castilleja lacera
L. P. Janeway
2005-7-3
8454
Lassen
High Cascade Range. Near large shallow stock pond 0.3 km west of Road 35N38 (road to Blacks Ridge Lookout Tower), 1.9 road km south or Road 22; 2.3 air km northwest of the lookout.
1580
Comment
JEPS118272
Castilleja lacera
Lowell Ahart, John Dittes
2011-6-20
17500
Lassen
In ditch along the north side of the road, about 40 yards east of the stream about 40 yards east of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin
1520
Comment
CHSC1714
Castilleja linariifolia
1944-7-5
Lassen
Bogard.
1722
Comment
CHSC6269
Castilleja miniata subsp. miniata
J. B. Kimsey
1946-6-17
Lassen
Mt. Fredonyer. Eagle Lake.
2133
Comment
CAS-BOT-BC240999
Castilleja pilosa
Alice Eastwood
1940-6-15
8318
Lassen
Said Valley
Comment
JEPS114620
Castilleja pilosa
Lowell Ahart, John Dittes
2008-6-19
14879
Lassen
Open flat, east bank of Willow Creek, about 30 yards northeast of Highway 139, near Forest Road 36N02, about 19.6 miles east-southeast of Bieber
1578
Comment
JEPS86248
Castilleja pilosa
L. R. Heckard and T. I. Chuang
1981-6-10
5529
Lassen
about 0.5 mi e Nubieber
1249
Comment
CHSC66406
Castilleja tenuis
Vernon H. Oswald; Lowell Ahart
1996-6-17
7802
Lassen
Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville. Modoc Plateau. On the N side of the trail between Devils Corral Trailhead and the 6.0 mile post.
1420
Comment
CHSC99525
Castilleja tenuis
Lowell Ahart; John Dittes
2008-6-22
15027
Lassen
Along a small natural drainage, about 20 yards west of the road levee, open meadow area, in Big Valley, about 2.1 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 5.0 miles (air) northeast of Bieber.
1262
Comment
CHSC99526
Castilleja tenuis
Lowell Ahart; John Dittes
2008-6-20
14944
Lassen
In vernal pools and swales, about 100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
1263
Comment
UC1137685
Castilleja tenuis
L. R. Short and Wm. Gansberg
1936-6-8
S- 394
Lassen
Burgess Spring Experimental Range; Lassen Forest
1743
Comment
CHSC29953
Caulanthus major
Robin L. Ondricek
1978-6-8
46
Lassen
Ridge E of Lower Dry Lake.
1767
Comment
CHSC80621
Caulanthus major var. nevadensis
Vernon H. Oswald; B. Corbin, K. Earll, G. Schoolscraft
2001-6-2
10036
Lassen
Northeast of Doyle in the Fort Sage Mtns, trail to top of mountin from the end of a $WD road.
1828
Comment
CAS-BOT-BC52051
Ceanothus prostratus
S. Saufferer
1973-5-6
124
Lassen
About 4 1/2 mis. West of Bieber along Highway #299
Comment
CHSC4984
Ceanothus prostratus
R. Clicquennoi
1967-7-4
5
Lassen
5 mi s of Eagle Lake Biology Station on Gallatin Beach Rd.
Comment
CHSC7727
Ceanothus prostratus
Beverly J. Wise
1969-4-21
90
Lassen
Approx. 2 mi. past Susanville old dump on old dump road.
1341
Comment
JEPS103176
Ceanothus prostratus
G. Schoolcraft
2000-4-25
2890
Lassen
3.5 mi N of Susanville along Hwy 139
1402
Comment
UC1071530
Ceanothus prostratus
A. Simontacchi
1940-6-5
819
Lassen
8.2 mi WNW of Harvey Valley Ranger Station
1737
Comment
CAS-BOT-BC52437
Ceanothus velutinus var. velutinus
1927-7-15
58
Lassen
Lassen Forest, 1/2 mi. South of Bogard Ranger Sta.
1737
Comment
HSC63932
Ceanothus velutinus var. velutinus
Teresa Prendusi
1980-7-21
Lassen
Fredonyer Peak near summit, N face
2424
Comment
CAS-BOT-BC277000
Centaurea diffusa
T. C. Fuller
1962-8-28
9480
Lassen
E. side of Hwy 395 to Madelaine, 1.6 mi. n. of Termo
Comment
CHSC113010
Centaurea virgata subsp. squarrosa
Lowell Ahart; John Dittes
2013-7-23
18910
Lassen
Near the summit on the north side of the Highway 299, at entrance road to quarry site, Big Valley Mountain, just east of Big Valley Summit, 2.8 miles (air) southwest of Nubieber.
1408
Comment
UCD130124
Centaurea virgata subsp. squarrosa
Dan Marcum
1980-8-24
s.n.
Lassen
Big Valley.
Comment
UCR47641
Centaurea virgata var. squarrosa
Don Pendleton
1986-6-25
s.n.
Lassen
Beiber, NE of Fall River Mills, Hwy 299
1258
Comment
UC762592
Centromadia pungens subsp. pungens
R. F. Hoover
1940-10-1
4657
Lassen
between Janesville and Standish; Honey Lake
Comment
CAS-BOT-BC400181
Ceratophyllum demersum
Milo S. Baker
July 25
3644 a
Lassen
Eagle Lake
Comment
CAS-BOT-BC400183
Ceratophyllum demersum
D. Toren; B. Trowbridge
1975-6-19
5183
Lassen
Blue Lake
1828
Comment
CHSC12418
Cercocarpus ledifolius var. ledifolius
Anne Linda Brisk
1969-6-19
5
Lassen
1/4 mi NE of ELBS.
1554
Comment
SD8909
Chaenactis douglasii
R. M. Austin
Aug 1882
Lassen
Comment
SDSU6452
Chaenactis douglasii
D. F. Howe
1964-7-31
3904
Lassen
Modoc National Forest, 10.2 miles from entrance of the forest.
1768
Comment
CHSC23518
Chaenactis douglasii var. douglasii
Wayne O. Baum
1971-7-6
71 -50
Lassen
Slope of Gallatin Peak.
2011
Comment
CHSC5202
Chaenactis douglasii var. douglasii
R. Gein
1946-6-24
Lassen
Webb's Camp, Eagle Lake.
1554
Comment
CHSC93690
Chaenactis douglasii var. douglasii
Lowell Ahart; John Dittes
2005-6-1
11893
Lassen
On the east side of Scott Road, Long Valley, about 4 3/8 miles (air) north of the intersection of Scott Road and Highway 70, about 5.7 miles (air) northwest of Hallelujah Junction.
1460
Comment
UCR7839
Chaenactis douglasii var. douglasii
Marilyn Malin
1968-6-19
250
Lassen
Eagle Lake Biological Station[Chico State Biological Station], 50 ft. NE of the A-Frame cabin
59
Comment
CAS-BOT-BC276611
Chaenactis douglasii var. douglasii
David D. Keck; J. Clausen
1935-6-24
3737
Lassen
2 miles S of Ravendale
1464
Comment
CAS-BOT-BC276613
Chaenactis douglasii var. douglasii
David D. Keck; J. Clausen
1935-6-25
3755
Lassen
Susanville, just W of town
1300
Comment
CHSC64751
Chaenactis stevioides
Vernon H. Oswald
1995-6-7
6839
Lassen
Modoc Plateau. Ridge on the n side of Wendel Rd. (Lassen 320) at milepost 11.0, 5.6 mi e of Wendel, ne of Susanville.
1261
Comment
CHSC30593
Chamaebatiaria millefolium
Leonard Walk
1972-7-5
40
Lassen
On Rd. 5.16 Belowe Eagle Lake Biology Station water tank.
1554
Comment
CDA41125
Chamaesaracha nana
T. C. Fuller
1962-6-13
8997 b
Lassen
0.5 mile south of Highway 36 to Chester, 2 miles west of Westwood.
0
Comment
CHSC31977
Chamaesyce serpillifolia subsp. serpillifolia
L. Ahart; J. T. Howell
1974-7-9
532
Lassen
Along edge of rd, 4 mi w of Susanville.
1584
Comment
CHSC66863
Chamaesyce serpillifolia subsp. serpillifolia
Vernon H. Oswald; Lowell Ahart
1996-9-10
8278
Lassen
Mountain Meadows Reservoir SW of Westwood. On the embankment of the railroad at the northwest edge of the reservoir.
1539
Comment
CHSC99743
Chamaesyce serpillifolia subsp. serpillifolia
Lowell Ahart; John Dittes
2008-6-20
14913
Lassen
On the levee road and in vernal pools, where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7.0 miles (air) northeast of Bieber.
1263
Comment
UC62674
Cheilanthes gracillima
Baker and Nutting
1894-7-30
Lassen
Silver Lake
2286
Comment
RSA756354
Chenopodium
Barbara Ertter
1987-7-24
7301
Lassen
ca 3/4 mi ENE of Beckwourth Pass at end of old crumbling paved road.
1524
Comment
CHSC112973
Chenopodium album
Lowell Ahart; John Dittes
2013-7-22
18859
Lassen
Drainage filled with dirt from construction of a pond, about 30 yards south of the man made pond, about 120 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
JEPS95909
Chenopodium album
Lowell Ahart
1999-9-13
8222
Lassen
about 1/2 mile east of Lambert Lane; about 3 1/2 miles (air) southeast of Standish
1210
Comment
UC1191354
Chenopodium berlandieri
Verne Grant and Irving Schneider
1947-7-31
8216
Lassen
George Williams section 19 Madeline Plain (nw quarter)
Comment
UC1587041
Chenopodium fremontii
G. Schoolcraft
1991-7-31
2206
Lassen
just s of Shinn Peak
2103
Comment
UCD54572
Chenopodium glaucum
Ellen Dean; Dawn Cunningham
2005-10-25
2755
Lassen
E. of town of Susanville. Private property N of California Correctional Facility. Western side of property around large playa pond.
1248
Comment
CAS-BOT-BC426335
Chenopodium incognitum
John Thomas Howell
1934-6-10
11900
Lassen
5 miles N of Horse Lake on road to Alturas
Comment
CDA23383
Chenopodium leptophyllum
M. K. Bellue
1938-8-1
Lassen
Near Butte Lake.
0
Comment Read comments Nov 1 2014
POM203791
Chenopodium pratericola
J. T. Howell
1934-7-8
12499
Lassen
Spalding s, Eagle Lake.
Comment
JEPS95912
Chenopodium rubrum var. humile
Lowell Ahart
1999-9-13
8215
Lassen
about 150 yards southwest of the parking area; about 1 mile south of the sign in station; Honey Lake Wildlife Area; 5 1/2 miles (air) southeast of Standish
1207
Comment
CHSC6236
Chimaphila umbellata
P. Balch
1955-7-22
Lassen
Roadside between Eagle Lake and Pittville Road.
1676
Comment
CAS-BOT-BC383110
Chrysolepis sempervirens
Andrew Townesmith; Karen M. Meyer
2007-7-22
841
Lassen
Lassen National Forest, Almanor Ranger District. Little Tule Lake, 6.1 miles west county road A21 on county road 110 and Forest Service road 10
1980
Comment
CHSC30554
Chrysolepis sempervirens
Sori H. Shad
1970-6-26
20
Lassen
Found at the edge of Deans Meadow.
1828
Comment
UC1135264
Chrysolepis sempervirens
A. Simontacchi
1940-6-15
881
Lassen
0.4 mi nw Blacks Mtn.; Lassen National Forest, Halls Flat Quad.
2164
Comment
RSA755658
Chrysopsis villosa var. hispida
Barbara Ertter
1987-7-24
7302
Lassen
ca 3/4 mi ENE of Beckwourth Pass at end of old crumbling paved road.
1524
Comment
UC1137593
Chrysothamnus humilis
L. R. Short and J. Warren
1936-8-17
S- 495
Lassen
Burgess Spr. Exp. Range Lassen Forest
1760
Comment
RSA188911
Chrysothamnus nauseosus subsp. consimilis
Delzie Demaree
1959-8-18
41519
Lassen
P.O. Termo.
1616
Comment
UCD38333
Chrysothamnus viscidiflorus
Beecher Crampton
1954-5-11
1883
Lassen
Beckwourth Pass.
1588
Comment
CAS-BOT-BC106023
Chrysothamnus viscidiflorus subsp. lanceolatus
Ynez Whilton Winblad
1935-9-23
s.n.
Lassen
Susanville
Comment
JEPS97320
Chrysothamnus viscidiflorus subsp. lanceolatus
Vernon H. Oswald and L. Ahart
1995-8-14
7190 B
Lassen
T33N R14E SW1/4 Sec. 2, 5400 ft, Modoc Plateau, Sagebrush Scrub. Horse Lake Rd. (Lassen 536) 1.8 mi W of Hwy. 395, N of Susanville
1645
Comment
CHSC77190
Chrysothamnus viscidiflorus subsp. puberulus
G. Schoolcraft
1999-7-28
Lassen
Ridge on east end of Skedaddle Mtns.
2133
Comment
CAS-BOT-BC105903
Chrysothamnus viscidiflorus subsp. viscidiflorus
Margaret Williams
1974-7-27
74 -L-56
Lassen
Burned area near Hallelujah Junction, west of Hwy 395 and south of Hwy 70 - Sierra Nevada
1493
Comment
JEPS21409
Chrysothamnus viscidiflorus subsp. viscidiflorus
W. L. Jepson
1918-8-4
7813
Lassen
e of Eagle Lake; Horse Lake
1554
Comment
JEPS97319
Chrysothamnus viscidiflorus subsp. viscidiflorus
Vernon H. Oswald and L. Ahart
1995-8-14
7183
Lassen
T33N R14E NE1/4 Sec. 2, 5400 ft, Modoc Plateau, Sagebrush Scrub. Horse Lake Rd. (Lassen 536) at the railroad crossing 1 mi W of Hwy. 395, N of Susanville. Shrub to ca. 5 dm tall growing at roadside. Leaves spirally twisted.
1645
Comment
SEINET5727104
Chrysothamnus viscidiflorus subsp. viscidiflorus
Lowell E. Urbatsch, Vesna Karaman, Castro
2000-1
7713
Lassen
Collected along Forest Road 37N11, off CA Hwy 139.; Modoc National Forest
1555
Comment
UC761845
Chrysothamnus viscidiflorus subsp. viscidiflorus
R. F. Hoover
1940-10-5
4664
Lassen
Wendel
Comment
JEPS103168
Chylismia claviformis subsp. cruciformis
Beth Corbin
2002-5-1
1065
Lassen
Honey Lake Valley, about 2 mi SE of Wendel.
1234
Comment
JEPS29747
Chylismia claviformis subsp. cruciformis
Rimo Bacigalupi, and L. R. Heckard
1962-5-28
8502
Lassen
2 mi e Wendel junction (on road past Flanagan to Pyramid Lake, Nevada, in low areas n of Honey Lake)
1219
Comment
UC1602277
Chylismia claviformis subsp. cruciformis
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3399
Lassen
Amedee Honey Lake Valley
Comment
RSA299121
Cinna latifolia
J. T. Howell, Gordon H. True
1973-8-1
50346
Lassen
Gold Run Creek road, south of Susanville, Diamond Range.
1951
Comment
CHSC23554
Cirsium andersonii
W. O. Baum
1971-7-6
49
Lassen
Slope of Gallatin Peak.
1981
Comment
UC1035883
Cirsium andersonii
Annie M. Alexander and Louise Kellogg
1946-8-13
5156
Lassen
w side of Eagle Lake Eagle Lake
Comment
CAS-BOT-BC278004
Cirsium cymosum
T. C. Fuller
1959-7-7
2740
Lassen
Hwy. 395, 7 miles north/road to Karlo
Comment
CAS-BOT-BC278007
Cirsium cymosum
John Thomas Howell
1934-6-10
11908
Lassen
Madeline Plains near Termo
Comment
SEINET7451109
Cirsium cymosum var. cymosum
J. A. Young
1982-6-9
s.n.
Lassen
Meyers Ranch, Adin, CA
1280
Comment
CAS-BOT-BC278091
Cirsium douglasii var. breweri
Peter H. Raven; Otto T. Solbrig
1958-6-17
13280
Lassen
Along United States Highway 395, 13.1 miles south of Ravendale
Comment
CDA1489
Cirsium ochrocentrum
Lee Wheeler
1959-7-23
s.n.
Lassen
Richmond Rd., about 4 mi. SE of Susanville. (Janesville, SW of Johnstonville.)
Comment
CDA1490
Cirsium ochrocentrum
T. C. Fuller
1965-10-13
14199
Lassen
Madeline Plains E base of Dry Valley Ridge, 10 mi. W of Termo, 3 mi N of Termo-Grasshopper Rd.
Comment
CDA1525
Cirsium ochrocentrum
T. C. Fuller
1980-8-5
20311
Lassen
28 km NE of Ravendale; east shore of Dodge Reservoir, 0.4 km east of campground.
Comment
RSA186825
Cirsium ochrocentrum
T. C. Fuller
1966-7-22
14982
Lassen
East of road at the east base of Dry Valley Ridge, Madelaine Plains, 3 miles north of paved road, 10 miles west of Termo.
Comment
RSA186826
Cirsium ochrocentrum
T. C. Fuller
1966-7-22
14983
Lassen
East of road at the east base of Dry Valley Ridge, Madelaine Plains, 3 miles north of paved road, 10 miles west of Termo.
Comment
CAS-BOT-BC280422
Cirsium ochrocentrum
Lee Wheeler
1950-10-1
s.n.
Lassen
Clarence Hoffman Ranch
Comment
CHSC5203
Cirsium scariosum
P. Balch
1955-7-19
Lassen
Eagle Lake. Roadside meadow 3 1/2 mi from Antelope Lookout.
1981
Comment
RSA504590
Cirsium scariosum
Bruce Bartholomew
1988-6-25
4370
Lassen
Long Valley, southern end of the Warner Mountains
2080
Comment
SEINET10474565
Cirsium scariosum
Mary Merello
1993-6-27
Merello 745
Lassen
Lassen National Forest at intersection of Forest Service Road 32N15 and Hwy. 94. Open conifer woodlands, dry.
1700
Comment
UC1119211
Cirsium scariosum var. americanum
A. Simontacchi
1940-6-3
794
Lassen
8.3 mi se Alcohol Jacks Cabin; Lassen National Forest, Halls Flat Quad.
1706
Comment
RSA186831
Cirsium undulatum
T. C. Fuller
1966-7-22
14981
Lassen
East of road at the east base of Dry Valley Ridge, Madelaine Plains, 3 miles north of paved road, 10 miles west of Termo.
Comment
LA202501
Clarkia gracilis subsp. gracilis
Brian Le Neve;
1996-7-4
84
Lassen
between Lake Almanor and Susanville on State Highway 36
Comment
CHSC92741
Clarkia lassenensis
L. P. Janeway
2005-7-3
8452
Lassen
High Cascade Range. Junction of Road 35N38 (road to Blacks Ridge Lookout Tower) and Road 22; 3.7 air km north-northwest of the lookout.
1536
Comment
POM260406
Clarkia lassenensis
C. L. Hitchcock
1940-5-26
6610
Lassen
Lava beds ca 12 miles north of Fall River Mills (Shasta Co.) on Fall River.
1372
Comment
UC1587045
Clarkia rhomboidea
G. Schoolcraft
1991-7-30
2194
Lassen
e side Widow Mountain
1889
Comment
CHSC80231
Clarkia stellata
Jeanne Boze
1981-6-12
108
Lassen
On hillside along road to 5 corners about 3 mi from Eagle Lake Field Station.
1706
Comment
CHSC83619
Clarkia stellata
L. P. Janeway
2001-6-28
7233
Lassen
High Cascade Range. Southwest flank of Cone Mountain, 0.5 km southwest of the summit; along Road 33N41Y 0.5 km southeast of Road 33N41YD.
1955
Comment
UC1483836
Claytonia perfoliata subsp. intermontana
G. Schoolcraft
1980-4-8
200
Lassen
just w Hwy. 395 (along Shaffer Mountain peak road); Shaffer Mountain
1402
Comment
JEPS107399
Claytonia rubra subsp. depressa
Lowell Ahart, John Dittes
2005-6-1
11882
Lassen
Near springs on a small hill, about 3/4 mile west of Scott Road, Long Valley, about 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.9 miles (air) northwest of Hallelujah Junction
1470
Comment
JEPS94123
Claytonia rubra subsp. depressa
Vernon H. Oswald and Lowell Ahart
1998-5-22
9124
Lassen
ca. 5 mi. n.e. Doyle (rd. to summit of Fort Sage Mts. 2.7 mi. e. of Fort Sage Rd.); Fort Sage Mts.
1463
Comment
CHSC92649
Claytonia rubra subsp. rubra
L. P. Janeway
2005-7-4
8464
Lassen
High Cascade Range. Ridge top north above Long Valley; 0.4 km west of Road 34N41.
1752
Comment
UC1136746
Claytonia rubra subsp. rubra
A. Simontacchi
1940-5-21
758
Lassen
4.1 mi sse Blacks Mtn.; Lassen National Forest, Halls Flat Quad.
1737
Comment
CHSC5225
Cleome platycarpa
J. B. Kimsey
1946-6-17
Lassen
Eagle Lake. Horse Lake.
1554
Comment
CHSC68621
Cleome platycarpa
Vernon H. Oswald; Lowell Ahart
1997-5-7
8403
Lassen
Smoke Creek Ranch Rd. 3.4 mi west of the CA-NV state line. Growing in disturbed roadside gravel.
1420
Comment
UC1537256
Cleome platycarpa
Gordon H. True Jr.
1938-7-8
904
Lassen
n of Hot Spring Mountain
1371
Comment
UC725411
Cleome platycarpa
A. A. Heller
1938-6-23
15207
Lassen
n of Mapes (on U.S. Highway 395)
1371
Comment
SEINET3153948
Cleome platycarpa
J. L. Strother
1970-5-23
951
Lassen
About 6 miles N of Honey Lake, at ca. 4200 feet elevation.
1280
Comment
NY242421
Cleomella parviflora
A. Tiehm
1980-5-29
5748
Lassen
North end of Honey Lake Valley, just north of Hot Springs 1.1 air miles NNW of Wendel.
1231.4
Comment
CAS-BOT-BC423223
Cleomella plocasperma
Marcus E. Jones
1897-6-23
s.n.
Lassen
Amedee
1219
Comment
RSA739646
Cleomella plocasperma
L. P. Janeway, Linus Gog
2008-8-2
9530
Lassen
Modoc Plateau just above th flats along the S side of Rusch Creek, S side of Smokey Creek Ranch road 1.8km W of the CA-NV line.
1349
Comment
CHSC64809
Collinsia parviflora
Vernon H. Oswald
1995-5-31
6811
Lassen
Modoc Plateau. Smoke Creek Ranch Rd. 1.7 mi e of Hwy. 395, between Litchfield and Ravendale.
1353
Comment
RSA0117250
Collinsia parviflora
L. Ahart, John Dittes
2005-6-1
11858
Lassen
On the west side of the poor dirt road, about 1/2 mile west of Scott Road, Long Valley, About 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.9 miles (air) northwest of Hallelujah Junction.
1449
Comment
UC1032574
Collinsia parviflora
K. Bradshaw
1939-5-27
229
Lassen
Lassen National Forest, s end of Black Mountain Experimental Forest Black Mountain Experimental Forest; Lassen National Forest, Black Mountain Experimental Forest
1752
Comment
UC1137686
Collinsia parviflora
L. R. Short
1936-5-7
S 344
Lassen
Lassen National Forest, Burgess Spring Experiment Range Burgess Spring Experiment Range; Lassen National Forest, Burgess Spring Experiment Range
1737
Comment
HSC68935
Collinsia parviflora
Gary Schoolcraft
1979-5-1
15
Lassen
Along road between Big Springs and Shearing Corrals
1677
Comment
RSA128300
Collinsia torreyi
Peter H. Raven, Otto T. Solbrig
1958-6-16
13249
Lassen
4.5 miles east of Westwood on Hwy 36.
Comment
CHSC59776
Collomia grandiflora
Mary Meyer
1980-5-15
Lassen
On slopes near creek along Secret Creek Canyon.
1371
Comment
CHSC6198
Collomia grandiflora
P. Collett
1946-6-24
Lassen
Spalding's, Eagle Lake.
1554
Comment
RSA0020052
Collomia grandiflora
Anthony Baniaga
2011-7-5
419
Lassen
Lassen National Forest. E. of Willard Creek.
1487
Comment
UC1123657
Collomia grandiflora
A. Simontacchi
1940-7-1
895
Lassen
5.4 mi nw Harvey Valley Ranger Station; Lassen National Forest, Halls Flat Quadrangle
Comment
SEINET12318331
Collomia grandiflora
Unknown
1978-1
22
Lassen
Lower Dry Lakes,SE of Eagle L
1646
Comment
UC1981729
Collomia linearis
Debra Valov
2010-7-17
2010102
Lassen
Bieber, Lassen Co., CA;; off County Rs A2 c. 8.7 km east of Hwy 299.
Comment
CHSC29920
Collomia tinctoria
Robin L. Ondricek
1978-6-20
64
Lassen
Gallatin Burn, 1.8 mi s of Five Corners.
2011
Comment
HSC30185
Collomia tinctoria
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19261
Lassen
Harvey Valley near Cone Springs
Comment
SBBG58209
Collomia tinctoria
E. Rockwell
-Jun-1925
Lassen
Eagle Lake
1554
Comment
SEINET3225028
Conanthus aretioides
Marcus E. Jones
1897-6-28
Lassen
Chat.
1520
Comment
JEPS121063
Convolvulus arvensis
M. L. Wheelis
1964-7-1
123
Lassen
HIghway 395, 3 miles north of Hallelulah Junction.
Comment
JEPS124868
Convolvulus arvensis
Laurel Loeblich
1964-6-30
56
Lassen
3 mi. north of Hallelujah Junction (highways 40 & 395) on 395.
Comment
JEPS17409
Cordylanthus kingii subsp. helleri
Rimo Bacigalupi with G. T. Robbins
1955-7-21
5427
Lassen
s Smoke Creek Ranch Rd. (1.3 m <e?> of Nevada line, 17.5 m w of US Hwy 395); drainage of Rush Creek
Comment
CHSC76102
Cordylanthus maritimus subsp. canescens
Lowell Ahart; Vernon H. Oswald
1999-9-13
8218
Lassen
About 150 yards southwest of the parking area, about 1 mile south of the sign in station, Honey Lake Wildlife Area, 5 1/2 miles (air) southeast of Standish.
1207
Comment
UC26324
Cordylanthus maritimus subsp. canescens
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3396
Lassen
Amedee Honey Lake Valley
Comment
CHSC77234
Cordylanthus ramosus
G. Schoolcraft
1999-8-10
2873
Lassen
S. of Doyle Grade about 2.5 mi. w. of Doyle, CA.
1584
Comment
JEPS11644
Cordylanthus ramosus
R. F. Hoover
1940-9-28
4640
Lassen
Leavitt, 8 mi e of Susanville; Leavitt
Comment
UC762620
Cordylanthus ramosus
R. F. Hoover
1940-10-5
4678
Lassen
Secret Valley
Comment
POM43084
Cordylanthus tenuis subsp. tenuis
Marcus E. Jones
1897-7-2
s.n.
Lassen
Susanville Summit
1829
Comment
CAS-BOT-BC383108
Cornus sericea subsp. sericea
Andrew Townesmith; Karen M. Meyer
2007-7-20
839
Lassen
Lassen National Forest, Eagle Lake Ranger District. Along Forest Service road 30N03, 0.5 mile from intersection with state route 36, at roadblock where two decrepit bridges cross Susanville River
1429
Comment
SEINET10739210
Cornus sericea subsp. sericea
Andrew Townesmith, Karen M. Meyer
2007-7-20
Townesmith 839
Lassen
Lassen National Forest, Eagle Lake Ranger District. Along Forest Service road 30N03, 0.5 mile from intersection with state route 36, at roadblock where two decrepit bridges cross Susanville River. T29N R11E S6 SW 1/4.
1429
Comment
CAS-BOT-BC401848
Corydalis caseana subsp. caseana
John Thomas Howell; Gordon H. True
1973-8-1
50237
Lassen
Headwaters of Baxter Creek, east slope of Diamond Range south of Susanville
2133
Comment
CHSC77215
Corydalis caseana subsp. caseana
G. Schoolcraft
1997-8-6
2657
Lassen
Along w. fork of Gold Run Creek about 8 miles sw of Susanville.
1859
Comment
CHSC87116
Crepis acuminata
L. P. Janeway
2001-6-20
7197
Lassen
Modoc Plateau. Along '22' Road about 1.8 km west of Black Hole, about 11.9 km north-northeast of Harvey Mountain.
1510
Comment
CHSC93564
Crepis acuminata
Lowell Ahart; John Dittes
2005-6-2
11933
Lassen
Long Valley, along the poor dirt road, about 1/4 mile west of the Anderson Ranch home, about 4 3/4 miles (air) north of the interesection of Scott Road and Highway 70, 6.5 miles (air) northwest of Hallelujah Junction.
1498
Comment
UC581294
Crepis acuminata
G. L. Stebbins Jr. and J. A. Jenkins
1937-7-14
2346
Lassen
about 4 mi se Willow Creek Range Station (se of Adin)
1767
Comment
CAS-BOT-BC376483
Crepis bakeri subsp. cusickii
G. L. Stebbins, Jr.; J. A. Jenkins
1937-7-14
2331
Lassen
Along road half way between Bogard Ranger Station and Harney Valley
1630
Comment
UC581207
Crepis intermedia
G. L. Stebbins Jr. and J. A. Jenkins
1937-7-14
2340
Lassen
s-facing slope 3 mi e Champs
1780
Comment
SJSU8354
Crepis intermedia
W. Savage
1971-7-20
725
Lassen
c. 2 mi N of Milford near W side Honey Lake
1264
Comment
UC581246
Crepis modocensis
G. L. Stebbins Jr. and J. A. Jenkins
1937-7-10
2298
Lassen
w Milford (crest of range head of ridge); Stony Ridge
1930
Comment
POM230914
Crepis monticola
G. Ledyard Stebbins, J. A. Jenkins
1937-7-6
2193
Lassen
Susanville, just west of the town, on 'Inspiration Point'
Comment
SEINET10443269
Crepis occidentalis
M. Church
2016-5-5
7
Lassen
Between Hwy 395 and Petersen Mountain, N of Hallelujah Junction.
1443
Comment
UC1136843
Crepis occidentalis
L. R. Short and W. Gansberg
S- 361
Lassen
Burgess Spr. Exp. Range Lassen <National> Forest
1871
Comment
UC581314
Crepis occidentalis
G. L. Stebbins Jr. and J. A. Jenkins
1937-7-10
2318
Lassen
sw-facing slope about 1 mi below summit; Black Mountain
1940
Comment
UC773980
Crepis occidentalis
L. R. Short and Wm. Gansberg
S- 361
Lassen
Burgess Spring Experiment Range Lassen <National> Forest
1871
Comment
UC1609227
Crepis occidentalis subsp. conjuncta
Vernon H. Oswald and Lowell Ahart
1993-6-28
5606
Lassen
Rd 35N04 n Hwy 44 (nw edge of valley, ne of Poison Lake); Harvey Valley, Aspen Well
1725
Comment
UC581276
Crepis occidentalis subsp. occidentalis
G. L. Stebbins Jr. and J. A. Jenkins
1937-7-11
2320
Lassen
w-facing slope about 1 mi below summit; Black Mt.
1940
Comment
UC726060
Crepis occidentalis subsp. occidentalis
A. A. Heller
1938-6-23
15201
Lassen
valley e Fredonyer Pass (on State Hwy 36)
Comment
CAS-BOT-BC290751
Crepis occidentalis subsp. occidentalis
David D. Keck; J. Clausen
1935-6-24
3752
Lassen
2 miles south of Ravensdale
1463
Comment
CAS-BOT-BC290824
Crepis occidentalis subsp. pumila
David D. Keck; J. Clausen
1935-6-25
3759
Lassen
Susanville
1340
Comment
UC296046
Crepis pleurocarpa
E. B. Babcock and J. L. Collins
1926-7-21
89
Lassen
8 mi w Susanville (on hwy to Quincy)
1371
Comment
UC23225
Cressa truxillensis
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3395
Lassen
Honey Lake Valley, Amedee
Comment
SJSU10956
Croton setiger
V. Hardham
1965-7-12
122
Lassen
12.4 mi NE of Susanville on Hwy 139
1493
Comment
CAS-BOT-BC189241
Cryptantha
John Thomas Howell; Gordon H. True
1973-8-1
50215
Lassen
E slope of Diamond Range, S of Susanville
2164
Comment
JEPS117574
Cryptantha ambigua
Lowell Ahart, John Dittes
2010-7-31
17023
Lassen
About 100 yards northeast of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin
1520
Comment
RSA0059645
Cryptantha ambigua
Richard R. Halse
2004-8-8
6616
Lassen
Along State Highway 139 ca. 6 miles north of Eagle Lake.
1710
Comment
SDSU20523
Cryptantha ambigua
Nuri Benet-Pierce, John P. Pierce
2012-7-14
523
Lassen
Between Poison Lake and Patterson Flats, in clearing by the rd, at the start to 35N08.
1724
Comment
CHSC25315
Cryptantha circumscissa
Pauleen Broyles
1977-4-1
168
Lassen
Roadway along Skedaddle Creek ca 8 km ene of Herlong.
1350
Comment
POM73157
Cryptantha crassisepala var. elachantha
Marcus E. Jones
1897-6-22
s.n.
Lassen
10 miles south of Amedee. [Lassen or Plumas Co.?]
1220
Comment
UC1924241
Cryptantha echinella
Debra Valov
2004-6-8
2004243
Lassen
Bieber; off County A2 c. 8 km east of Hwy 299
1271
Comment
UCD119960
Cryptantha muricata
G. Schoolcraft
2000-6-19
2903
Lassen
West of Cold Springs Valley.
Comment
JEPS94832
Cryptantha pterocarya
Vernon H. Oswald and Lowell Ahart
1998-5-22
9112
Lassen
5 mi nne of Doyle (Road to ORV parking area in Fort Sage Mountains 0;.6 mi e of Fort Sage Road); Fort Sage Mountains
1402
Comment
POM72225
Cryptantha torreyana
Marcus E. Jones
1897-6-25
7103
Lassen
Susanville.
1341
Comment
UC1584020
Cryptantha watsonii
G. Schoolcraft
1990-6-12
2089
Lassen
about 17 mi e Ravendale (in Pine Dunes RNA)
1706
Comment
UC570279
Cupressus bakeri
D. Dunning
1935-11-17
Lassen
2 mi e Burney Spring; Burney Quadrangle
1463
Comment
UCR243134
Cuscuta approximata
Jerry Schmierer
1986-9-1
s.n.
Lassen
Don Blickenstaff Ranch
1220
Comment
UCD126237
Cuscuta approximata
Lee Smith
1975-9-4
s.n.
Lassen
Al Blickenstaff Farm, near Honey Lake, 3 miles south of Janesville.
Comment
POM180742
Cycladenia humilis
A. W. Kramer
s.n.
Lassen
Prospect Peak, Lassen National Park
Comment
UC193142
Cycladenia humilis var. humilis
J. G. Lemmon
Lassen
near Shasta (Black Cone); ; Black Cone, near Shasta
Comment
UC1587038
Cynoglossum occidentale
G. Schoolcraft
1991-7-30
2192
Lassen
Bear <Sring> on n. side of widow Mt.
1780
Comment
CHSC117528
Cyperus squarrosus
Lowell Ahart; John Dittes
2016-7-13
21139
Lassen
Scattered along the south edge of the pond, 90 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley.
1289
Comment
UC1567429
Cyperus squarrosus
G. Schoolcraft
1989-7-24
1994
Lassen
along n. shore Said Valley Reservoir
1630
Comment
UC569547
Cyperus squarrosus
H. S. Yates
1936-8-11
6065
Lassen
Baxter Creek Susanville Quad., Baxter Creek
1280
Comment
CAS-BOT-BC114056
Cyperus squarrosus
George Wilson Gillett
1957-9-4
1125
Lassen
Widow Lake. East margin of lower lake, near inlet in drying mud.
2072
Comment
CHSC7699
Dactylis glomerata
Beverley J. Wise
1969-5-23
128
Lassen
35.5 mi. S.E. of Susanville on Las. Co. Rd. 320.
1249
Comment
UC1522132
Dalea ornata
Arnold Tiehm, Raymond Evans, and James Young
1984-6-7
8592
Lassen
7.5 air mi. n.-n.w. of Litchfield (n.w. side of Shaffe Mt.); Shaffe Mt.
1371
Comment
POM119128
Damasonium californicum
Marcus E. Jones
1897-6-24
s.n.
Lassen
10 to 15 miles west from Amedee.
1219
Comment
UC1609111
Damasonium californicum
Vernon H. Oswald and Lowell Ahart
1993-6-14
5507
Lassen
ca. 8 mi. (air) w. of Eagle Lake (Lassen A21 (32N02) 2.1 mi. e. of Lassen 105 (32N28Y), s.e. side of Pine Creek Valley); Pine Creek Valley
1728
Comment
CAS-BOT-BC445515
Damasonium californicum
M. S. Taylor
1982-6-12
4647
Lassen
On n side of Susan River (West Fork), s side of hwy 36, at jct with Willow Creek Rd, ca. 8 mi w of Susanville.
1463
Comment
CAS-BOT-BC445516
Damasonium californicum
Clarence R. Quick
1964-8-4
64 -99
Lassen
Reservoir at Long's cabin between Black's Mt. and Experimental Forest
1783
Comment
CAS-BOT-BC445519
Damasonium californicum
C. L. Hitchcock
1940-5-26
6646
Lassen
Overflow of Pitt River, 1 mile west of Bieber.
Comment
JEPS124717
Damasonium californicum
M. L. Wheelis
1964-6-30
137
Lassen
Second bridge (to the north) between Bieber and New Bieber.
Comment
RSA0011557
Damasonium californicum
Robert F. Thorne, Larry E. DeBuhr
1975-8-22
46995
Lassen
Along Highway 395 ca. 5 miles north of Madeline and ca. 5.5 miles south of Modoc county line
1616
Comment
SEINET6188248
Damasonium californicum
R. F. Thorne, Larry E. De Buhr
1975-1
46995
Lassen
Along Highway 395 ca. 5 miles north of Madeline and ca. 5.5 iles south of Modoc county line.
1615
Comment
GMDRC7740
Danthonia californica
J. M. Andre, G. Clifton
1993-6-11
33421
Lassen
Modoc Plateau: NW of Snowstorm Mtn, approx. 3 mi. east of Horse Lake, 12 mi. S of Ravendale
1545
Comment
UC506937
Danthonia californica var. americana
George A. Fischer and Irwin H. Johnson
1933-7-12
F 236
Lassen
Patterson Flat Lassen National Forest
1737
Comment
UCD61007
Danthonia californica var. americana
L. Whitney
1933-8-3
Lassen
Near Slate Creek.
1889
Comment
UC1136812
Danthonia unispicata
L. R. Short and Wm. Gansberg
1936-6-8
S- 398
Lassen
Burgess Spr. Exp. Range Lassen <National> Forest
1755
Comment
UCD61076
Danthonia unispicata
L. Whitney
1935-6-24
Lassen
Ashurst Mt., N of Harvey Valley, ca. 35 mi. NW of Susanville.
Comment
SDSU4575
Deinandra lobbii
D. F. Howe
1961-8-4
3135
Lassen
11.5 miles east of Mc Arthur on U.S. 299.
1372
Comment
CAS-BOT-BC291779
Deinandra lobbii
John Thomas Howell
1934-7-3
12380
Lassen
Big Valley near Bieber
Comment
CAS-BOT-BC1416
Delphinium andersonii
L. B. Barlow
1967-6-23
1
Lassen
Eagle Lake Biological Station, east central side of Eagle Lake
1554
Comment
SEINET5337963
Delphinium andersonii
F. B. Headley
Unknown
s.n.
Lassen
Honeylake, Calif.
Comment
UC726247
Delphinium armeniacum
A. A. Heller
1938-6-4
15149
Lassen
1 mile east of Fredonyer Pass east of Westwood.
1706
Comment
CHSC6243
Delphinium depauperatum
J. E. Wolf
1946-6-12
Lassen
Eagle Lake.
1580
Comment
CAS-BOT-BC8991
Delphinium depauperatum
Mrs. H. C. Cantelow
1949-6-11
8
Lassen
East slope of Fredonyer Pass
Comment
CHSC36468
Delphinium nudicaule
Jeffrey R. Peek
1982-6-3
29
Lassen
Ca. .3 mi s jct of forest service roads 5.16 and 5.17, heading toward 5-corners.
Comment
HSC27049
Delphinium nuttallianum
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19195
Lassen
Harvey Valley near Cone Springs
Comment
NY492431
Delphinium stachydeum
G. Schoolcraft
1983-8-3
1123
Lassen
About 2 miles south of Holbrook Canyon
1828.8
Comment
CAS-BOT-BC194259
Deschampsia cespitosa subsp. cespitosa
Ray Hanson
1954-8-23
s.n.
Lassen
Near Jackey Lake
2112
Comment
CAS-BOT-BC194261
Deschampsia cespitosa subsp. cespitosa
John Thomas Howell; Gordon H. True
1973-8-1
50230
Lassen
Headwaters of Boxter Creek, east slope of Diamond Range south of Susanville
2133
Comment
CAS-BOT-BC194263
Deschampsia cespitosa subsp. cespitosa
G. S. Crew
1927-7-15
57
Lassen
Feather Lake, Lassen Forest
1737
Comment
CDA31657
Deschampsia cespitosa subsp. cespitosa
Gordon Leppig, T. LaBanca
1997-6-28
511
Lassen
Modoc National Forest, Blue Lake Ranch, peatland in large meadow complex.
Comment
UC188776
Deschampsia cespitosa subsp. cespitosa
Milo S. Baker
July 1894
Lassen
Eagle Lake
Comment
UC506928
Deschampsia cespitosa subsp. cespitosa
George A. Fischer and Irwin H. Johnson
1933-7-14
F 244
Lassen
Patterson Flat Lassen Forest, Patterson Flat
1737
Comment
CAS-BOT-BC192742
Deschampsia danthonioides
Louella Bass
1973-5-29
EU 57
Lassen
Elysian Valley
1325
Comment
CHSC112783
Deschampsia danthonioides
Lowell Ahart; John Dittes, Todd Sloat
2013-6-8
18754
Lassen
Drainage filled with dirt from the construction of a pond, about 30 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
CHSC29861
Deschampsia danthonioides
Robin L. Ondricek
1978-7-15
102
Lassen
Where the spring arises above the dam at Murrers Upper Meadow.
1548
Comment
JEPS88325
Deschampsia danthonioides
Vernon H. Oswald and Lowell Ahart
1996-6-24
7840
Lassen
2.5 mi. s. of Eagle Lake (ca. 0.5 mi. e. of Eagle Lake Rd. (A1), Papoose Meadows, w. side of meadow just s. of cabins); Modoc Plateau, Papoose Meadows
1633
Comment
RSA185317
Deschampsia danthonioides
Clare B. Hardham
1961-6-17
s.n.
Lassen
Baxter Creek, south of Susanville
1677
Comment
CAS-BOT-BC201807
Deschampsia elongata
George W. Gillett
1957-7-28
925
Lassen
Trail to Widow Lake above junction with Snag Lake trail at upper end of Butte Lake
1859
Comment
HSC68802
Deschampsia elongata
G. Schoolcraft
1980-8-13
350
Lassen
N side of Diamond Mountain.
1951
Comment
UC1100290
Deschampsia elongata
Malcolm A. Nobs and S. Galen Smith
1949-7-21
1058
Lassen
4 mi. n. Madeline
Comment
UCD63431
Deschampsia elongata
L. Whitney
1933-8-3
Lassen
Slate Creek.
1920
Comment
UCD63560
Deschampsia elongata
John Thomas Howell; Gordon H. True and Margaret Williams
1973-6-28
49467
Lassen
Sierra Nevada. Elysian Valley west of Janesville.
1325
Comment
CHSC60884
Descurainia incisa subsp. filipes
Vernon H. Oswald; Lowell Ahart
1993-7-8
5656
Lassen
Pittville Rd. (Lassen 111, 36N01) 1.9 mi N of Hwy. 44, on the SE edge of Poison Lake. Along a ridge between the railroad and the lake.
1709
Comment
UC1136915
Descurainia pinnata
L. R. Short and W. McNulty
1936-6-15
S- 435
Lassen
Burgess Spring Experimental Range; Lassen National Forest
1833
Comment
CAS-BOT-BC43263
Descurainia pinnata subsp. glabra
P. Monnet
1913-7-1
812
Lassen
Hot Springs Peak.
2438
Comment
CAS-BOT-BC43487
Descurainia sophia
John Thomas Howell
1975-7-23
51400
Lassen
Sierra Nevada. Susanville.
1295
Comment
CHSC57356
Descurainia sophia
B. G. Clark
1987-4-15
22
Lassen
Lassen or Inyo counties. Top of knoll 1/4 mi sw of Lassen College adjacent and west of hwy 139.
Comment
POM109921
Dichelostemma multiflorum
Marcus E. Jones
1897-6-26
s.n.
Lassen
Susanville. Perkin s Ranch.
1463
Comment
CAS-BOT-BC292260
Dieteria canescens
Margaret Williams; Steven Williams
1974-7-26
74 -L-21
Lassen
Near Hallelujah Junction, west of Hwy 395 and south of Hwy 70
1493
Comment
UC86850
Dieteria canescens var. shastensis
Wm. M. Canby
1897-9-1
138
Lassen
Mt. Shasta
Comment
CHSC26185
Diplacus mephiticus
J. P. Kroessig
1977-5-23
28
Lassen
Small scattered population at Eagle Lake Biological Station (CSUC), ca 37 km nnw of Susanville.
478
Comment
CHSC26186
Diplacus mephiticus
J. P. Kroessig
1977-5-23
30
Lassen
Large scattered population at Eagle Lake Biological Station, ca 37 km nnw of Susanville.
1570
Comment
CHSC36479
Diplacus mephiticus
Margaret E. Halloran
1982-6-6
10
Lassen
Pine Creek just below fish trap where Pine Creek empties into Eagle lake.
Comment
CHSC57240
Diplacus mephiticus
David M. Thompson
1998-6-1
923
Lassen
2.7 mi NW of Milford along Hwy 395.
1249
Comment
CHSC5907
Diplacus mephiticus
R. Gein
1946-6-12
Lassen
Pine Creek bridge.
1584
Comment
SBBG66659
Diplacus mephiticus
S. W. Hutchinson
-Jun-1925
Lassen
near Eagle Lake
Comment
SEINET13703699
Diplacus mephiticus
A. A. Heller, P. B. Kennedy
1907-7-1
8673
Lassen
Near Old Chat.
Comment
CDA6686
Dipsacus fullonum
T. C. Fuller, Lee Wheeler
1959-7-23
2820
Lassen
Nubieber.
0
Comment
RSA0011496
Dipsacus fullonum
R. F. Thorne, Larry E. DeBuhr
1975-8-22
46971
Lassen
Along Highway 395 ca. 6 miles north of Madeline and 4.5 miles south of Modoc county line.
1616
Comment
CDA31696
Distichlis spicata
E. E. Fix, Agric. Comm.
Sep 1951
Lassen
0
Comment
RSA647537
Distichlis spicata
Marion P. Harthill
1972-6-18
804
Lassen
Litchfield.
1311
Comment
UC60225
Distichlis spicata
J. Burtt Davy
June 17-24 1897
Lassen
Amedee, Honey Lake Valley
Comment
SACT001016
Distichlis spicata var. stricta
Verne Grant, Irving Schneider
1947-9-5
Lassen
Rhizomatous, northwest shore of Eagle Lake
Comment
CAS-BOT-BC136178
Dodecatheon alpinum
A. M. Vollmer; L. Beane
1953-7-1
90
Lassen
Along Halls Flat Road, beginning 6 miles wet of Susanville to McArthur
1554
Comment
CHSC7735
Dodecatheon alpinum
Beverley J. Wise
1969-4-20
82
Lassen
14.7 mi. north of Susanville on Hwy 139.
1463
Comment
CHSC112464
Downingia bacigalupii
Lowell Ahart; John Dittes, Todd Sloat
2013-6-8
18738
Lassen
About 30 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
CHSC95386
Downingia bacigalupii
H. Chappel; J. Goldhammer, K. Moran, K. Strassman
2002-7-9
ALT- 018
Lassen
Ecoregion 4. Muck Valley (at top of mountain pass).
1386
Comment
JEPS117578
Downingia bacigalupii
Lowell Ahart, John Dittes
2010-7-31
17013
Lassen
Bottom of small wash, about 2,300 feet north of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin
1510
Comment
POM312397
Downingia bacigalupii
Verne Grant, Irving Schneider
1947-7-31
8209
Lassen
Irrigation ditch NE quarter of George Williams section 19, Madeline Plain.
Comment
UC2047850
Downingia bacigalupii
Debra Valov
2016-6-21
1296
Lassen
Bieber; off County Rd. A2 c. 8 km east of Hwy 299; 100 m up private driveway; in dry vernal pool/ditch.
Comment
RSA505399
Downingia bacigalupii
Rimo Bacigalupi
1957-6-28
5999
Lassen
Ditches along U.S. Highway 395 on Madeline Plains, 3.1 miles south of Madeline.
1616
Comment
SBBG126109
Downingia bacigalupii
L. Ahart, J. Dittes
2010-7-31
17013
Lassen
ca 2300 feet N of where rd crosses Hunsinger Draw, 1.9 mi NW of Moll Reservoir, 2.8 mi W of Ash Valley, 8.4 mi SE of Adin
1510
Comment
CHSC60887
Downingia bicornuta var. bicornuta
Vernon H. Oswald; Lowell Ahart
1993-7-8
5649
Lassen
Pittville Rd. (Lassen 111, 36N01) 1.9 mi N of Hwy. 44, on the SE edge of Poison Lake.
1709
Comment
CHSC99106
Downingia bicornuta var. bicornuta
Lowell Ahart; John Dittes
2008-6-20
14945
Lassen
In vernal pools and swales, about 100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
1263
Comment
JEPS108508
Downingia bicornuta var. bicornuta
Lisa Schultheis
1995-6-27
228 -95
Lassen
W sie of Rt. 395, 3.5 mi S of Madeline.
Comment
SEINET8733890
Downingia elegans
Helen K. Sharsmith
1955-1
4512
Lassen
adjacent to State Highway 299 near Fall River Mills, Lassen National Forest
1219
Comment
CHSC65303
Downingia insignis
Vernon H. Oswald; Lowell Ahart
1995-8-14
7184
Lassen
Modoc Plateau. Horse Lake Rd. (Lassen 536) at the railroad crossing 1 mi W of Hwy. 395, N of Susanville.
1645
Comment
JEPS3751
Downingia insignis
Helen-Mar Wheeler
1952-7-11
Lassen
s of Madeline
Comment
RSA298985
Downingia insignis
Helen-Mar Wheeler
1952-7-11
s.n.
Lassen
South of Madeline.
Comment
UC1520663
Downingia insignis
Noel H. Holmgren and Patricia K. Holmgren
1980-7-3
9482
Lassen
4.6 mi s Ravendale (U.S. Highway 395)
1615
Comment
SEINET10702760
Downingia insignis
David B. Dunn
1956-7-3
Dunn 11924
Lassen
Alkaline sink by roadside, extra runoff from Hwy. 395. 11 mi. S of Madeline.
Comment
CAS-BOT-BC266472
Downingia laeta
Wm. Anderson
1960-6-16
s.n.
Lassen
Along county road 0.25 mile S of Mapes Ranch, Honey Lake Valley
Comment
JEPS94484
Draba verna
Vernon H. Oswald and Lowell Ahart
1997-5-27
8522
Lassen
3.6 mi ne of Highway 139 (small impoundment on Coyote Flat Draw crossing Forest Route 38N04, between Hwy 139 near Willow Creek Guard Station and Coyote Flat); Coyote Flat Draw crossing Forest Route 38N04
1731
Comment
HSC95149
Drosera anglica
Gordon Leppig, J. Cromwell
1997-7-27
609
Lassen
Modoc National Forest, Blue Lake Ranch.
1970
Comment
UCD99551
Drosera rotundifolia
Barry Rice
2009-7-5
BR 090703
Lassen
at Robbers Spring.
Comment
CAS-BOT-BC527339
Drymocallis glandulosa var. reflexa
John Thomas Howell
1976-6-20
52013
Lassen
ABout 5 miles west of Fredonyer Pass, near confluence of Willard Creek and Susan River, Sierra Nevada
1432
Comment
UC1483817
Eatonella nivea
G. Schoolcraft
1980-5-8
226
Lassen
sw of Herlong
1255
Comment
CHSC99982
Elaeagnus angustifolia
L. P. Janeway
2008-8-2
9522
Lassen
Modoc Plateau. Honey Lake Valley, 4.9 air km southeast of Standish, along Mapes Road 0.3 km east of Lambert Lane.
1222
Comment
JEPS121273
Elatine
Lowell Ahart, John Dittes
2013-7-23
18890
Lassen
Man-made pond, about 150 yards NW of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley.
Comment
RSA0105584
Elatine
Lowell Ahart, John Dittes
2013-7-22
18883
Lassen
About 150 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
CHSC107341
Elatine californica
Lowell Ahart; John Dittes
2011-6-21
17527
Lassen
Along the bottom of a small drainage, about 30 yards north of the road, between Elkins Lane and Walters Road, about 100 yards south of the old barn, 500 feet south of Modoc County Line, about 4.3 miles (air) west-southwest of Adin, about 7.3 miles (air) northeast of Bieber, Big Valley.
1268
Comment
CHSC116193
Elatine californica
Lowell Ahart; John Dittes
2015-7-13
20299
Lassen
About 400 yards south of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
JEPS123970
Elatine californica
Lowell Ahart, John Dittes
2015-7-13
20296
Lassen
Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
Comment
SEINET9342679
Elatine californica
Robert Thorne, DeBuhr, Larry
1975-8-22
47212
Lassen
Lassen County
Comment
UC1609483
Eleocharis bella
Vernon H. Oswald and Lowell Ahart
1993-6-28
5599
Lassen
NE of Poison Lake (Rd 35N04 at Aspen Well, N of Hwy 44 on NW edge of Harvey Valley)
1725
Comment
JEPS120126
Eleocharis macrostachya
Lowell Ahart, John Dittes
2012-7-9
18293
Lassen
About 100 yards southeast of the tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
Comment
RSA127028
Eleocharis palustris
Robert W. Gardner
1937-6-26
G- 26
Lassen
Poison Lake
1707
Comment
RSA127038
Eleocharis quinqueflora
Robert W. Gardner
1939-6-15
G- 36
Lassen
Little Harvey Valley
1700
Comment
UCD150399
Elodea canadensis
William Anderson
1963-6-12
s.n.
Lassen
Honey Lake Valley.
Comment
SEINET10565243
Elymus
Paul Gallian, David B. Dunn
1971-6-2
Gallian 512
Lassen
6 mi of Hallelujah Jct. on US hwy 395, in Artemisia tridentata, Pinyon pine, Jeffery pine along high ridge and in sandy wash.
1402
Comment
UCD62817
Elymus X saundersii
Beecher Crampton
1960-6-18
5716
Lassen
Southern Warner Mtns., vicinity of Blue Lake Ranch.
1981
Comment
JEPS120873
Elymus caput-medusae
Lowell Ahart, John Dittes, Todd Sloat
2013-6-8
18749
Lassen
About 30 yards N of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley.
Comment
SJSU15451
Elymus cinereus
John Rawlings, Sara Timby
2014-6-15
1266
Lassen
In and around BLM campground at north end of Eagle Lake.
1580
Comment Read comments Feb 18 2015
CAS-BOT-BC227488
Elymus elymoides
John Thomas Howell
1934-7-10
12533
Lassen
Between Harvey Valley and Patterson Flats
Comment
CAS-BOT-BC227492
Elymus elymoides
Louella Bass
1973-6-3
EU 97
Lassen
Elysian Valley
1325
Comment
JEPS122360
Elymus elymoides
Joseph Broberg, Jaycee Leonard
2012-7-31
CA 320 -117
Lassen
From Alturas head south on Highway 395. At the town of Termo turn left onto Juniper Ridge road. Then turn left into the Mendibourne wildlife game management area. Collection is across a fence in BLM land
Comment
RSA152628
Elymus elymoides
I. L. Wiggins, Dorothy Wiggins
1961-6-11
16343
Lassen
13.5 mi. E. of Susanville
Comment
SEINET12745634
Elymus elymoides
F. B. Headley
1915-5-28
s.n.
Lassen
Honey Lake.
Comment
UC188795
Elymus elymoides subsp. elymoides
Milo S. Baker
Lassen
Dixie Mt.; s side
Comment
JEPS126494
Elymus elymoides var. californicus
Alia Johnson, Jocelyn Munoz, Jillian Sarazen
2016-7-5
CA 350 -73
Lassen
Heading north on 395 turn right on to Smoke Creek Road and drive up the road towards the uphill to where the Rush fire burned.
Comment
JEPS126495
Elymus elymoides var. californicus
Alia Johnson, Jocelyn Munoz, Jillian Sarazen
2016-6-28
CA 350 -72
Lassen
Heading north on 395 turn right on to Smoke Creek Road and drive up the road towards the uphill to where the Rush fire burned.
Comment
CAS-BOT-BC206729
Elymus glaucus subsp. glaucus
L. S. Smith
1918-8-11
1021
Lassen
Lost Lake, Camp One, Modoc Forest
2438
Comment
CAS-BOT-BC206730
Elymus glaucus subsp. glaucus
Clare B. Hardham
1971-8-22
18401
Lassen
Aspen Swamp, Diamond Mountain
2133
Comment
CAS-BOT-BC206734
Elymus glaucus subsp. glaucus
John Thomas Howell; Gordon H. True
1973-8-1
50179
Lassen
Gold Run Creek south of Susanville, Diamond Range - Sierra Nevada
1584
Comment
JEPS127708
Elymus spicatus
Alejandro Brambila, Michael Dolan
2016-7-13
CA 320 -161
Lassen
Juniper Ridge Road, before split with Juniper Tree Road. Population North of road.
Comment
UC1024916
Elymus trachycaulus
Leo Whitney
1935-6-29
3362
Lassen
Bieber
Comment
UCD62664
Elymus trachycaulus
L. Whitney
1935-6-24
Lassen
Squaw Valley.
Comment
UCD62709
Elymus trachycaulus
Beecher Crampton
1954-7-5
2058
Lassen
Along Hwy. 36, 4.5 miles west of Susanville.
Comment
CHSC114411
Elymus trachycaulus subsp. trachycaulus
Don Lepley
2014-6-26
Lassen
Lassen National Forest; Eagle Lake Ranger District. Two air miles east of Diamond Mountain summit, in landing at end of Road 28N52A.
2133
Comment
HSC8755
Elymus trachycaulus subsp. trachycaulus
M. T. Milligan
1964-8-6
205
Lassen
Eagle Lake, near shore at Eagle Lake General Store.
1677
Comment
RSA299617
Elymus trachycaulus subsp. trachycaulus
J. T. Howell
1973-7-10
49776
Lassen
Fredonyer Pass
1738
Comment
CHSC110307
Elymus triticoides
L. P. Janeway; B. Castro
2012-7-2
10921
Lassen
Modoc Plateau. Honey Lake Valley, northeast side of Honey Lake, 1.5 km north of Wendel, 0.8 km east of the road to Wendel.
1241
Comment
UC1220396
Elytrigia elongata
T. C. Fuller
1963-7-15
10887
Lassen
2.9 mi se Pittville (s of road to Little Valley)
Comment
HSC1308
Ephedra viridis
K. P. St. John
1965-5-6
17
Lassen
13 mi. N of Litchfield on Hwy. 395
Comment
HSC1311
Ephedra viridis
L. H. Myers
1963-4-14
35
Lassen
2 mi. S of Hwy. 395, Doyle
1372
Comment
JEPS94829
Ephedra viridis
Vernon H. Oswald and Lowell Ahart
1998-5-22
9103
Lassen
ca. 5 mi. n.-n.e. Doyle (rd. to ORV parking area in Fort Sage Mts., 0.5 mi. e. of Fort Sage Rd.); Fort Sage Mts.
1371
Comment
SD6464
Ephedra viridis
R. M. Austin
1879-1
Lassen
near Susanville
Comment
CHSC29866
Epilobium brachycarpum
Robin L. Ondricek
1978-6-27
72
Lassen
.6 mi n of Five Corners along road to ELFS.
1706
Comment
HSC68917
Epilobium brachycarpum
Gary Schoolcraft
1980-7-7
302
Lassen
N end of Eagle Lake
1585
Comment
RSA252401
Epilobium brachycarpum
Robert F. Thorne, C. W. Tilforth
1969-9-6
39263
Lassen
C. 0.7 mi. SE of Milford, along Hwy. 395 (W. of Honey Lake).
1280
Comment
UC1122562
Epilobium brachycarpum
A. Simontacchi
1940-6-13
852
Lassen
3.3 mi wsw Patterson Mtn.; Lassen National Forest, Halls Flat Quadrangle
Comment
CHSC113081
Epilobium campestre
Lowell Ahart; John Dittes
2013-7-22
18850
Lassen
Drainage filled with dirt from construction of a pond, about 30 yards south of the man made pond, about 120 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
CHSC117519
Epilobium campestre
Lowell Ahart; John Dittes
2016-7-13
21128
Lassen
West of the pond and along the poor dirt road, 60 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Biebeer, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley.
1289
Comment
RSA0105585
Epilobium ciliatum subsp. ciliatum
Lowell Ahart, John Dittes
2013-7-22
18856
Lassen
30 yards south of the man made pond, about 120 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
UC1583987
Epilobium ciliatum subsp. ciliatum
G. Schoolcraft
1990-7-11
2108
Lassen
n Moon Lake (at reservoir edge); McCabe Spring
1669
Comment
HSC100124
Epilobium ciliatum subsp. ciliatum
M. T. Milligan
1964-7-16
143
Lassen
2 mi. W on Silver Lake Rd., along Upper Susan River
1829
Comment
NY1001467
Epilobium ciliatum var. ciliatum
M. A. Nobs
1949-8-20
1471
Lassen
Honey Lake Valley, 1 mile south of Milford
Comment
CHSC106068
Epilobium densiflorum
Lowell Ahart; John Dittes
2010-7-31
16994
Lassen
Dry meadow on the bottom of a small wash, about 5 yards north of the large culvert, where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin.
1516
Comment
CDA20353
Epilobium densiflorum
H. Leach
August 1949
s.n.
Lassen
Modoc Plateau; Madeline Plain.
0
Comment
CHSC59090
Epilobium glaberrimum subsp. glaberrimum
Vernon H. Oswald; Lowell Ahart
1992-8-25
5183
Lassen
Lassen Volcanic National Park. Grassy Creek at the S end of Snag Lake. Bottom of a cutbank of the creek where it enters the lake.
1853
Comment
HSC95344
Epilobium palustre
Gordon Leppig, Tony LaBanca, Leonel Arguello
1997-6-29
538
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
HSC95345
Epilobium palustre
Gordon Leppig
1998-8-17
1049
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
CAS-BOT-BC57099
Equisetum X ferrissii
Margaret Williams; Louella Bass
1972-10-22
EV 8
Lassen
Elysian Valley, northwest of Janesville
1325
Comment
CHSC91598
Eragrostis cilianensis
G. Douglas Barbe
1978-8-31
2425
Lassen
Modoc National Forest. Roadside, Hwy 139, NW of Willow Creek Guard Station, Modoc National Forest, 3.6 mi SE of Co Rd A2 to Bieber, 6 mi S of Adin (Modoc Co.).
1417
Comment
SBBG69966
Eremogone congesta
S. W. Hutchinson
-Jun-1925
69
Lassen
Eagle Lake
1554
Comment
CAS-BOT-BC174183
Eremogone congesta var. charlestonensis
John Thomas Howell
1977-6-22
52401
Lassen
North end of Eagle Lake
1584
Comment
CHSC87106
Eremogone congesta var. congesta
L. P. Janeway
2001-6-20
7191
Lassen
High Cascade Range. South side of the junction of the '22' road and Road 34N41; about 5.6 km south of Dixie Valley and 8.9 km north of Harvey Mountain.
1560
Comment
CHSC5228
Eremogone congesta var. simulans
J. B. Kimsey
1946-6-17
Lassen
Mt. Fredonyer.
2421
Comment
CHSC5079
Eriastrum signatum
A. W. Harvilik
1967-6-30
35
Lassen
Collected near junction of rd. 5.19 and rd to Murrer's Meadow.
1524
Comment
UC1178959
Eriastrum signatum
Herbert L. Mason
1957-7-5
14714
Lassen
s Madeline; Madeline Plains
Comment
UC526132
Eriastrum signatum
John Thomas Howell
1934-6-10
11840
Lassen
near Plumas Junction
Comment
CAS-BOT-BC286605
Ericameria bloomeri
M. S. Taylor; B. Hammond
1982-8-27
5054
Lassen
Crystal Peak area, Diamond Mts, ca. 6 air mi sw of Doyle
2377
Comment
CAS-BOT-BC286606
Ericameria bloomeri
E. K. Balls; P. C. Everett
1952-10-9
18134
Lassen
About Plumas-Lassen county line, Hwy 89, east of Lake Almanor
1219
Comment
POM40990
Ericameria bloomeri
Marcus E. Jones
1897-6-28
s.n.
Lassen
Top of Diamond Mt. Susanville. Perkin's Ranch.
2226
Comment
SEINET5741365
Ericameria bloomeri
Lowell E. Urbatsch, Vensa Karaman
2000-1
7714
Lassen
Collected along Forest Road 37N11, off of CA 139.
1220
Comment
UC76031
Ericameria bloomeri
Milo S. Baker
Lassen
Big Valley, Lassen and Modoc Co. Big Valley
Comment
UCR57484
Ericameria bloomeri
R. D. Goeden, Don W. Ricker
1989-8-24
32
Lassen
Lassen National Forest, Black Gulch Road, c. 2 mi. west of Little Valley Road
1524
Comment
UC29712
Ericameria nauseosa
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3344
Lassen
Honey Lake Valley
Comment
CAS-BOT-BC298172
Ericameria nauseosa var. oreophila
C. B. Wolf
1931-9-6
2403
Lassen
Honey Lake Valley, 3 miles from Wendel on the road to Janesville
1219
Comment
CHSC65293
Ericameria nauseosa var. oreophila
Vernon H. Oswald; Lowell Ahart
1995-8-14
7181
Lassen
Modoc Plateau. Hwy. 395 9.1 mi N of Smoke Creek Ranch Rd., N of Susanville. Along this section of highway.
1359
Comment
JEPS21521
Ericameria nauseosa var. oreophila
R. F. Hoover
1940-9-28
4638
Lassen
Leavitt
Comment
UCD54569
Ericameria nauseosa var. oreophila
Ellen Dean; Dawn Cunningham
2005-10-25
2752
Lassen
East of the town of Susanville. Property N of California Correctional Facility.
1248
Comment
CHSC66849
Ericameria nauseosa var. speciosa
Vernon H. Oswald
1996-10-3
8295
Lassen
Modoc Plateau. Hwy. 395 N of Susanville between Litchfield and Ravendale, 10.4 mi N of Smoke Creek Ranch Rd. On the edge of highway at Secret Creek.
1402
Comment
CAS-BOT-BC293009
Ericameria parryi var. nevadensis
C. B. Wolf
1931-9-6
2405
Lassen
1/2 mile from Janesville on the road to Wendel - Western edge of Honey Lake Valley
1280
Comment
SEINET8079426
Erigeron aphanactis var. aphanactis
M. J. Williams
1974-7-29
74- 1 -49
Lassen
2 mi. west of Hallelujah Junction, south of Hwy 70
1494
Comment
CAS-BOT-BC293524
Erigeron aphanactis var. aphanactis
Mrs. H. C. Cantelow
1941-5-24
s.n.
Lassen
Ball's Canyon, south of Secret Valley
Comment
CAS-BOT-BC293527
Erigeron aphanactis var. aphanactis
P. Monnet
1913-7-6
809
Lassen
Hot Springs Peak, S.E. of Lassen County
1828
Comment
RSA700050
Erigeron bloomeri
L. P. Janeway
2001-6-20
7198
Lassen
Modoc Plateau. Along '22' Rd. about 1.8 km west of Black Hole, about 11.9 km north-northeast of Harvey Mountain.
1500
Comment
CHSC105254
Erigeron bloomeri var. bloomeri
Lowell Ahart; John Dittes
2010-7-31
17010
Lassen
About 2,300 feet north of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin.
1510
Comment
CHSC117134
Erigeron bloomeri var. bloomeri
L. P. Janeway; B. Castro
2015-6-5
11777
Lassen
Great Basin, Modoc Plateau. Along Tuledad Road (County Road 506) 13.0 road-km south of the junction a the west end of Tuledad Canyon; 6.8 road-km north of Stage Road (which is in the eastern corner of Madeline Plains); west side of a northeasern branch of Red Rock Creek.
1695
Comment
CHSC117135
Erigeron bloomeri var. bloomeri
L. P. Janeway; B. Castro
2015-6-5
11759
Lassen
Great Basin, Modoc lateau. Along the road from the south end of Surprise Valley to Tuledad Canyon, 7.4 road-km south of Surprise Valley Road; 1.4 air-km northwest of Mahogany Mtn.
1731
Comment
CHSC48146
Erigeron bloomeri var. bloomeri
Vernon Oswald
1986-6-15
2115
Lassen
Road between Hwy 139 and Eagle Lake Biological Station, near Black Mtn.
1584
Comment
UCR268961
Erigeron bloomeri var. bloomeri
Jim Andre, Tasha La Doux, Senna T. Andre, Elias Andre
2013-7-12
31427
Lassen
along north side of Hwy 44 at south end of Grays Valley, along National Forest Route 33N02, north of Bogard Buttes, c. 30 mi west of Susanville
1733
Comment
RSA636042
Erigeron bloomeri var. bloomeri
Michael A. Vincent
1999-6-9
8583 b
Lassen
Along US Rt. 395, south of Ravendale Fire Station, 1.8 miles north of rest area, and 24.8 miles north of Litchfield.
1524
Comment
CAS-BOT-BC294905
Erigeron chrysopsidis var. austiniae
G. Schoolcraft
1988-6-7
1811
Lassen
About 14 air mi. NE of Ravendale
1737
Comment
CAS-BOT-BC296848
Erigeron divergens
John Thomas Howell; Alice Eastwood
1940-6-11
7979
Lassen
Big Valley Mts.
Comment
CHSC66373
Erigeron divergens
Vernon H. Oswald; Lowell Ahart
1996-6-17
7808
Lassen
Modoc Plateau. Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville. On the edge of the Susan River E of Devils Corral Trailhead and W of the 6.0 mile post.
1402
Comment
JEPS84932
Erigeron divergens
Barbara Ertter
1987-7-24
7303
Lassen
ca .75 mi ene Beckwourth Pass (at end of old crumbling paved road)
1524
Comment
POM33001
Erigeron divergens
Marcus E. Jones
1897-6-26
s.n.
Lassen
Susanville, Perkin's Ranch.
1463
Comment
RSA516387
Erigeron divergens
Barbara Ertter
1987-7-24
7303
Lassen
ca 3/4 mi ENE of Beckwourth Pass at end of old crumbling paved road.
1524
Comment
UC1561865
Erigeron divergens
Barbara Ertter
1987-7-24
7303
Lassen
ca .75 mi ene Beckwourth Pass (at end of old crumbling paved road)
1524
Comment
UC1924228
Erigeron divergens
Debra Valov
2004-6-8
2004246
Lassen
Bieber; off County A2 c. 8 km east of Hwy 299
1271
Comment
UC1924238
Erigeron divergens
Debra Valov
2004-6-8
2004246
Lassen
Bieber; off County A2 c. 8 km east of Hwy 299
1271
Comment
UC1776680
Erigeron eatonii var. plantagineus
G. Schoolcraft
1993-6-29
2313
Lassen
Ash Valley RNA 16 miles E of Adin
1554
Comment
JEPS95073
Erigeron elegantulus
Vernon H. Oswald and Lowell Ahart
1997-5-27
8492
Lassen
w side of Hwy 139 s of Willow Creek Guard Station 0.9 mi s of Forest Road 38N04 to Coyote Flat Coyote Flat; Hwy 139
1577
Comment
UC584370
Erigeron elegantulus
E. B. Babcock, G. L. Stebbins Jr.
1936-6-8
1787
Lassen
roadside about 5 mi n Termo
1371
Comment
JEPS97369
Erigeron inornatus var. calidipetris
Vernon H. Oswald and L. Ahart
1995-7-24
7146
Lassen
T31N R7E NW1/4 NW1/4 Sec. 24, 6250 ft, High Cascade Range, Red Fir Forest. Forest Road 31N25 0.5 mi E of Forest Route 10, near the NW corner of Upper Stephens Mdws., ca. 3 mi NNE of Silver Lake, N of Lake Almanor
1905
Comment
CHSC92961
Erigeron inornatus var. inornatus
L. P. Janeway
2005-8-27
8522
Lassen
High Cascade Range. Along Road 22, 11.3 road km east of Little Valley; above Davis Creek.
1460
Comment
RSA712920
Erigeron inornatus var. inornatus
L. P. Janeway
2005-8-27
8521
Lassen
High Cascade Range. Along road 22, 2.1 road km west of its beginning/end at Road 35N05 in Little Valley
1415
Comment
UC1523776
Erigeron inornatus var. inornatus
Gary Schoolcraft
1981-7-21
529
Lassen
about 2 mi along main road, se of Little Valley P.O.
1280
Comment
SFV10992
Erigeron lassenianus var. deficiens
J. Turner, F. M. Ball
1962-7-13
1193
Lassen
Laufman Public Camp, 3 miles off Highway 395 from Milford near Honey Lake.
1494
Comment
CAS-BOT-BC295471
Erigeron lassenianus var. lassenianus
Lassen 1927 G. S. Crew
1927-6-25
34
Lassen
Lassen National Forest. Norval Flat
1747
Comment
CAS-BOT-BC295507
Erigeron linearis
Marcus E. Jones
1897-6-28
s.n.
Lassen
Top of Diamond Mt. Susanville. Perkin's Ranch
2225
Comment
CHSC67165
Erigeron linearis
James D. Jokerst
1991-5-29
3314
Lassen
Modoc Plateau. Survey for reroute of Hwy. 139 ca. 0.75 N of the N end of Eagle Lake, E of the highway +/- 500 ft on top of ridge N of a drainage.
1584
Comment
CHSC68844
Erigeron linearis
Vernon H. Oswald; Lowell Ahart
1997-6-24
8608
Lassen
South of Susanville on the north side of Diamond Mtn. at slope along Forest Rd. 29N43, 5.4 miles east of Gold Run Rd. (29N10), 0.7 mi east of Lassen NF boundary. At roadside.
1889
Comment
UCR7844
Erigeron philadelphicus
Marilyn Malin
1968-6-27
255
Lassen
Spring fed roadbank on E side of Rd 425, c. 1 mi north of Gallatin Beach Picnic area, SW side of Eagle Lake.
1570
Comment
HSC5530
Erigeron philadelphicus
M. S. Baker
1893-1
Lassen
Vicker's Ranch, Big Valley, collected in the summer
Comment
CHSC99137
Erigeron pumilus subsp. intermedius
Lowell Ahart; John Dittes
2008-6-19
14867
Lassen
Open hillside, about 100 yards east of Willow Creek, about 120 yards northeast of Highway 139, near Forest Road 36N02, about 19.6 miles east-southeast of Bieber.
1578
Comment
JEPS114759
Erigeron pumilus subsp. intermedius
Lowell Ahart, John Dittes
2008-6-19
14867
Lassen
Open hillside, about 100 yards east of Willow Creek, about 120 yards northeast of Highway 139, near Forest Road 36N02, about 19.6 miles east-southeast of Bieber
1578
Comment
CAS-BOT-BC300122
Erigeron pumilus var. intermedius
Alice Eastwood; John Thomas Howell
1940-6-15
8312
Lassen
Upper Willow Creek east of Hayden Hill
Comment
UC31462
Erigeron pumilus var. intermedius
M. S. Baker and Frank Nutting
1894-6-20
Lassen
Big Valley
Comment
UCD18963
Erigeron pumilus var. intermedius
R. E. Francis
1965-7-7
8
Lassen
Lassen National Forest, Harvey Valley Allotment.
1737
Comment
UC584286
Erigeron tener
G. L. Stebbins Jr. and J. A. Jenkins
1937-7-10
2285
Lassen
summit Thompson Peak (s of Janesville)
2346
Comment
SEINET5333913
Eriogonum baileyi
D. Tonenna
2007-8-20
s.n.
Lassen
Hwy 395, 6 mi. north of Halellujah Junction, west of road
1450
Comment
CAS-BOT-BC241570
Eriogonum baileyi var. baileyi
John Thomas Howell
1955-7-19
30817
Lassen
East side of Beckwourth Pass
1493
Comment
UCR92116
Eriogonum baileyi var. baileyi
G. R. Ballmer
1993-7-31
s.n.
Lassen
Sandy flats along Fort Sage Rd., NE of Doyle, SE of Honey Lake, about 2-5 air mi west of Neveda border
1215
Comment
SEINET6332092
Eriogonum collinum
A. J. Cronquist, A. H. Holmgren
1959-6-17
8478
Lassen
1 mile south of Ravendale, 40 miles northeast of Susanville.
1615
Comment
JEPS118162
Eriogonum douglasii var. meridionale
Dean W. Taylor
2009-5-21
20603
Lassen
Susanville; Susanville Peak, northerly flank along logging roads ca. 1.5 air miles E of Round Valley Reservoir
1706
Comment
JEPS94457
Eriogonum douglasii var. meridionale
Vernon Oswald and Lowell Ahart
1997-6-24
8639
Lassen
s of Susanville (near the small pond on the crest of Diamond Mountain, about midway between Aspen Flat and Red Rock Lookout); crest of Diamond Mountain
2249
Comment
JEPS116871
Eriogonum elatum var. elatum
David Gowen
2007-7-13
785
Lassen
Just off Hwy 395 south of Constantia at road crossing Long Valley Creek.
Comment
CAS-BOT-BC263045
Eriogonum maculatum
Noel H. Holmgren; James L. Reveal
1964-8-22
1724
Lassen
35 miles northeast of Susanville 18 miles south of Ravendale along U.S. 395
Comment
CAS-BOT-BC263046
Eriogonum maculatum
Robert F. Hoover
1940-10-5
4670
Lassen
Wendel
Comment
CHSC65157
Eriogonum maculatum
Vernon H. Oswald; Lowell Ahart
1995-7-5
6961
Lassen
North of Honey Lake on Smoke Creek Ranch Rd., 1.2 mi w of the Nevada-California state line.
1335
Comment
RSA739645
Eriogonum maculatum
L. P. Janeway
2008-8-2
9532
Lassen
Modoc Plateau just above th flats along the S side of Rusch Creek, S side of Smokey Creek Ranch road 1.8km W of the CA-NV line.
1349
Comment
CAS-BOT-BC267343
Eriogonum marifolium var. marifolium
A. M. Vollmer; L. Beane
1953-7-1
83
Lassen
Along Halls Flat Road beginning 6 miles west of Susanville to McArthur
1554
Comment
JEPS128413
Eriogonum nudum
Catherine Bauer with Ellen Bauer Benson
2017-8-16
19
Lassen
South of Highway 44, North of Butte Lake, at Butte Creek Campground. Santa Clara Valley, National Forest Service, National Forest Campground.
Comment
CHSC105258
Eriogonum nudum var. nudum
Lowell Ahart; John Dittes
2010-7-31
16983
Lassen
About 100 yards northeast of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin.
1520
Comment
CHSC13879
Eriogonum nudum var. pubiflorum
J. Grove
1973-7-19
96
Lassen
Collected on Big Valley Mountain 5 mi. W of Nubieber.
1310
Comment
UC1542949
Eriogonum nudum var. pubiflorum
G. Schoolcraft
1987-7-8
1759
Lassen
about 8 mi s Adin (Lonkey Hill); Lonkey Hill
1463
Comment
UC1542952
Eriogonum nudum var. pubiflorum
G. Schoolcraft
1987-9-9
1778
Lassen
3 mi n Bieber; Ash Creek Wildlife Area
1258
Comment
SEINET530684
Eriogonum nummulare
Paul Opler
2007-7-7
Lassen
N end Turtle Mountain.
1288
Comment
SEINET5333908
Eriogonum ochrocephalum
D. Tonenna
2007-8-20
s.n.
Lassen
Hwy 395, 6 mi north of Halellujah Junction along west side of road.
1450
Comment
NY281931
Eriogonum ochrocephalum var. ochrocephalum
N. H. Holmgren
1970-6-25
4378
Lassen
North end of Peterson Mountain, near US 395, 8 miles north of junction with Calif. 70 (Hallelujah Junction).
1524.0
Comment
SEINET523073
Eriogonum ochrocephalum var. ochrocephalum
Paul Opler
2002-6-22
Lassen
US 395, 1 mi. S. Hallelotah junction.
Comment
SEINET524402
Eriogonum ochrocephalum var. ochrocephalum
Paul A. Opler
2003-6-29
Lassen
Quarry, 5 mi N of Hallelujah Junction, access road to west of US 295.
Comment
NY282047
Eriogonum ovalifolium var. nevadense
G. Schoolcraft
1982-6-28
738
Lassen
Ft. Sage Mtns.
762.0
Comment
CAS-BOT-BC258146
Eriogonum prociduum var. prociduum
E. K. Balls
1950-5-19
14780
Lassen
16.5 miles W. of Madeline on rd. from Adin
1676
Comment
CHSC12948
Eriogonum prociduum var. prociduum
K. R. Stern; D. B. Joley, J. G. Geschke
1974-6-22
5813
Lassen
Ca. 16.5 mi w of Madeline, on Madeline-Adin Road.
1548
Comment
SEINET5331406
Eriogonum pusillum
F. B. Headley
1915-5-31
s.n.
Lassen
Honey Lake.
Comment
NY283074
Eriogonum spergulinum var. reddingianum
R. F. Hoover
1940-10-1
4656
Lassen
Janesville
Comment
UC303059
Eriogonum spergulinum var. reddingianum
Pearl Safford
Lassen
Susanville [uncertain locality]
Comment
JEPS28865
Eriogonum sphaerocephalum var. halimioides
Arthur Cronquist, Arthur H. Holmgren
1959-6-18
8482
Lassen
5 mi s Adin
Comment
UC1226260
Eriogonum sphaerocephalum var. halimioides
Arthur Cronquist, Arthur H. Holmgren
1959-6-18
8482
Lassen
5 mi s Adin
Comment
NY283383
Eriogonum strictum
G. Schoolcraft
1985-6-12
1422
Lassen
Near intersection of Horse Lake Road & Highway 139
1487.4
Comment
RSA0029191
Eriogonum strictum
John F. Emmel
1997-6-8
1491
Lassen
At Hwy. 395 crossing of Secret Creek, on hill and slope 0.2-0.3 air mi WSW of the crossing, 2.7 road mi north of Karlo Road junction.
1448
Comment
CHSC12967
Eriogonum strictum var. anserinum
K. R. Stern
1974-6-26
5865
Lassen
E end of Champs flat.
Comment
NY762353
Eriogonum strictum var. anserinum
J. T. Howell
1934-7-7
12478
Lassen
Harvey Valley
Comment
CAS-BOT-BC262770
Eriogonum strictum var. proliferum
Doris Kildale Gillespie
1930-5-13
9365
Lassen
Between Susanville and Janesville
Comment
CAS-BOT-BC267898
Eriogonum umbellatum
John Thomas Howell
1934-7-6
12436
Lassen
Harvey Valley
Comment
CHSC86946
Eriogonum umbellatum var. modocense
L. P. Janeway
2001-6-20
7189
Lassen
High Cascade Range. South side of the junction of the '22' road and Road 34N41; about 5.6 km south of Dixie Valley and 8.9 km north of Harvey Mountain.
1560
Comment
CAS-BOT-BC265098
Eriogonum umbellatum var. nevadense
Louella Bass
1983-6-12
1 -83
Lassen
On Sears Road near Janesville, Sierra Nevada
Comment
UC6403
Eriogonum ursinum
M. S. Baker and Frank Nutting
1894-7-30
Lassen
Silver Lake
Comment
CAS-BOT-BC262365
Eriogonum vimineum
Marcus E. Jones
1897-6-18
s.n.
Lassen
Chat
1524
Comment
CHSC4953
Eriogonum vimineum
R. Carter
1967-6-27
561
Lassen
Growing ca. 10 yds off n side of rd., 1.75 mi w of Eagle Lake Biology Station.
1584
Comment
CHSC56867
Eriogonum vimineum
Mary Meyer
1980-7-3
Lassen
North of Jeep trail going up drainage above camping pullover.
1584
Comment
JEPS22038
Eriogonum vimineum
Rimo Bacigalupi with S. Galen Smith and Geo. Bacigalupi Jr.
1957-6-29
5994
Lassen
about 1 mi n Sage Hen siding on Southern Pacific R.R. line (just e of U.S. Highway No.395, 7.0 mi n of Madeline)
Comment
POM105137
Eriogonum vimineum
Marcus E. Jones
1897-6-18
s.n.
Lassen
Chat. [also Chats, a former settlement]
1524
Comment Read comments Mar 6 2011
SEINET14417545
Eriogonum vimineum
Robert L. Johnson, Mikel R. Stevens
2015-1
3924
Lassen
1.9 rd miles west of jct with Hwy 395 on Dawn Dr on E side of Shaffer Mountain. Ca 18 air mi ene of downtown Susanville.; South to southwest-facing slope.
1545
Comment
UC1601757
Eriogonum vimineum
T. S. Brandegee
1892-6-26
Lassen
Milford
Comment
UC85765
Eriogonum vimineum
T. S. Brandegee
1892-6-22
Lassen
Honey Lake
Comment
UCR245457
Eriogonum vimineum
Elizabeth A. Kempton
2007-8-15
511
Lassen
Janesville, intersection of Hwy 395 and Sunnyside Road
973
Comment
CAS-BOT-BC262366
Eriogonum vimineum
David D. Keck
1930-7-23
951
Lassen
Susanville
1280
Comment
HSC69595
Eriogonum vimineum
J. Walker
1979-7-18
37
Lassen
Near Skedaddle Creek, S portion
1311
Comment
CHSC96443
Eriophorum gracile
Gordon Leppig; T. LaBanca, L. Arguello
1997-6-28
508
Lassen
Modoc National Forest. Blue Lake Ranch.
1970
Comment
JEPS96132
Eriophorum gracile
Vernon H. Oswald and Lowell Ahart
1996-6-24
7888
Lassen
2.5 mi. s. Eagle Lake (ca. 0.5 mi. e. of Eagle Lake Rd. (A1), e. side Papoose Meadows, Modoc Plateau); Modoc Plateau, Papoose Meadows
1633
Comment
CHSC67057
Eriophyllum lanatum
Willis Ball
1969-6-19
9
Lassen
Found approx. 1/2 mile N. of E.L.B.S. Near old Eagle Lake basin.
1584
Comment
SEINET10672051
Eriophyllum lanatum
Jeffrey Huber
1971-6-2
Huber 139
Lassen
6 mi. N of Halleluja Jct. on U.S. Hwy. 395, in Artemesia tridentata, Pinyon pine, Jeffrey pine along high rigdge and in sandy wash.
1402
Comment
CAS-BOT-BC308140
Eriophyllum lanatum var. achilleoides
A. A. Heller
1938-6-23
15197
Lassen
2 miles east of Fredonyer Pass on Highway #36
1645
Comment
CDA5861
Eriophyllum lanatum var. achilleoides
Gary Schoolcraft
1991-7-3
2199
Lassen
East slope of widow mountain.
Comment
SEINET4208677
Eriophyllum lanatum var. achilleoides
Noel H. Holmgren, Patricia K. Holmgren
1980-7-3
9490
Lassen
Rye Patch Canyon Road, 3.4 km (2.1 mi) east of US Highway 395, 14.5 km (9 mi) airline distance southeast of Ravendale.; 0
1700
Comment
UC773893
Eriophyllum lanatum var. achilleoides
L. R. Short and J. Warren
1936-6-29
S 459
Lassen
Burgess Spr. Exp. Range Lassen Forest, Burgess Spr. Exp. Range
1822
Comment
UCR244036
Eriophyllum lanatum var. achilleoides
Jim Andre
1993-6-5
19706
Lassen
Sierra Nevada/Great Basin, Honey Lake Valley, c. 3 mi. SE of Susanville, just south of airport
1256
Comment
CDA4968
Eriophyllum lanatum var. achilleoides
T. C. Fuller
1963-6-1
10634
Lassen
East side of road to Hall s Flat, 9.4 miles south of Pittville.
0
Comment
SEINET8687254
Eriophyllum lanatum var. achilleoides
J. A. Young
1982-6-7
s.n.
Lassen
Redlands
1676
Comment
CHSC106076
Eriophyllum lanatum var. grandiflorum
Lowell Ahart; John Dittes
2010-7-31
17024
Lassen
About 100 yards northeast of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin.
1520
Comment
JEPS117575
Eriophyllum lanatum var. grandiflorum
Lowell Ahart, John Dittes
2010-7-31
17024
Lassen
About 100 yards northeast of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin
1520
Comment
UC1137628
Eriophyllum lanatum var. integrifolium
A. Simontacchi
1940-6-5
816
Lassen
8.3 mi wnw of Harvey Valley Ranger Station; Lassen National Forest, Halls Flat Quadrangle
Comment
UC1536862
Eriophyllum lanatum var. integrifolium
G. H. True Jr.
1936-6-25
537
Lassen
e Harvey Ranger Station; Harvey Valley
1767
Comment
UC1609106
Eriophyllum lanatum var. integrifolium
Vernon H. Oswald and Lowell Ahart
1993-6-28
5583
Lassen
Harvey Valley Rd (33N02) 1.2 mi n Hwy 44 (e side of valley, e of Poison Lake); Grays Valley
1731
Comment
UC1924572
Erodium cicutarium
Debra Valov
2006-5-29
2006022
Lassen
Bieber off County Rd A2 c. 8.7 km east of Hwy 299
1280
Comment
UC1088542
Eryngium alismifolium
Ornduff
1958-7-22
5014
Lassen
6.6 mi. n. Ravendale (along Hwy. 395)
Comment
SEINET8673757
Eryngium alismifolium
G. L. Stebbins Jr., Dansereau, P.; McMillan, C.; Narayan, K.
1949-8-6
4000
Lassen
Hog Flat, n.w. of Susanville.
1676
Comment
UC21010
Eryngium articulatum
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3374
Lassen
Honey Lake Valley
Comment
UC1487338
Eryngium mathiasiae
Yusuf Sheikh and Lincoln Constance
1973-6-27
533
Lassen
3.4 mi N of Bieber (Bieber-Lookout Road 1 mi S of Modoc County line)
1219
Comment
CAS-BOT-BC40727
Erysimum capitatum
Alice Eastwood; John Thomas Howell
1940-6-15
8319
Lassen
Said Valley.
Comment
UC1533163
Erysimum capitatum
G. Schoolcraft
1986-4-28
1529
Lassen
lower w slopes Ft. Sage Mtns.
1432
Comment
UC1137587
Erysimum capitatum var. capitatum
A. Simontacchi
1940-6-15
868
Lassen
0.6 mi wsw Blacks Mt.; Lassen National Forest, Halls Flat Quadrangle
Comment
CAS-BOT-BC55197
Erysimum repandum
William Anderson
1963-4-16
s.n.
Lassen
Honey Lake Valley.
Comment
UCD149850
Erysimum repandum
William Anderson
1963-4-16
s.n.
Lassen
Honey Lake Valley.
Comment
CHSC60857
Erythranthe breweri
Vernon H. Oswald; Lowell Ahart
1993-6-28
5610
Lassen
N of Hwy 44 on Rd. 33N06, on the Sse flank of Harvey Mtn., NNE of Burgess Meadow, NE of Poison Lake.
1798
Comment
CHSC106222
Erythranthe guttata
Arthur C. Barrett
1915-6-3
14
Lassen
Laufman Ranger Station.
1463
Comment
CHSC60923
Erythranthe inflatula
Vernon H. Oswald; Lowell Ahart
1993-7-8
5652
Lassen
Pittville Rd. (Lassen 111, 36N01) 1.9 mi N of Hwy. 44, on the SE edge of Poison Lake.
1709
Comment
CHSC64897
Erythranthe latidens
Vernon H. Oswald; Lowell Ahart
1995-6-19
6887
Lassen
Between Litchfield and Ravendale on Smoke Creek Ranch Rd., 1.7 mi e of Hwy. 395. Modoc Plateau.
1350
Comment
SD7073
Erythranthe lewisii
Mrs. R. M. Austin
1877-1
Lassen
Spanish Peak
Comment
CAS-BOT-BC153608
Erythranthe moniliformis
John Thomas Howell; Gordon H. True
1973-7-31
50051
Lassen
On road from Janesville to Thompson Peak, Diamond Range
1783
Comment
CAS-BOT-BC153610
Erythranthe moniliformis
Louella Bass
1973-6-17
124
Lassen
Elysian Valley
Comment
CHSC14065
Erythranthe primuloides
J. Grove
1973-7-25
Lassen
Collected at Collemans Lake along fill dam of lake.
1524
Comment
CHSC5062
Erythranthe primuloides
B. Anthony
1967-7-14
283
Lassen
5.3 mi from junction to highway 44 and rd to Silver Lake.
1798
Comment
SEINET3836920
Erythranthe primuloides
Marcus E. Jones
1897-1
Lassen
Near Prattville, Clear Creek
1524
Comment
SEINET3836923
Erythranthe primuloides
Marcus E. Jones
1897-1
Lassen
Near Pratville, Clear Creek
1524
Comment
RSA234813
Erythranthe pulsiferae
Francis W. Pennell
1940-6-10
25781
Lassen
Northeast of West wood.
1646
Comment
RSA149124
Eschscholzia californica var. crocea
I. L. Wiggins, Dorothy B. Wiggins
1961-6-16
16531
Lassen
Along Highway 299, overlooking Big Valley
1250
Comment
CDA3706
Euclidium syriacum
E. E. Fix
1951-6-8
Lassen
0
Comment
JEPS124752
Euphorbia serpillifolia
Peter Schultz
1967-7-12
76
Lassen
14.9 miles southeast of Adin on state highway 139; 1/4 mile west of Willow Creek Campground.
Comment
CHSC117511
Euphorbia virgata
Lowell Ahart; John Dittes
2016-7-13
21118
Lassen
Along the drainage, about 100 yards south of the pond, 150 yards east of Stonebreaker Road, 0.6 miles south of County road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slop of Big Valley.
1289
Comment
SD112378
Eurybia integrifolia
Darley F. Howe
1964-8-2
3919
Lassen
East Creek, Warner Mountains, Modoc National Forest.
2010
Comment
CHSC71858
Euthamia occidentalis
Vernon H. Oswald; Lowell Ahart
1998-9-8
9579
Lassen
Ash Creek and Big Swamp 2.2 mi north of Bieber on County Road 91 (Bieber-Lookout Rd.).
1258
Comment
CAS-BOT-BC310645
Euthamia occidentalis
Louella Bass
1980-8-29
s.n.
Lassen
Standish
Comment
CAS-BOT-BC310646
Euthamia occidentalis
G. Schoolcraft
1997-8-20
2698
Lassen
On Susan River behind BLM office in Susanville
1264
Comment
CAS-BOT-BC458296
Euthamia occidentalis
Louella Bass
1980-8-1
s.n.
Lassen
Sierra Nevada: Standish
Comment
CAS-BOT-BC278435
Festuca idahoensis
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49459
Lassen
Elysian Valley, west of Janesville
1325
Comment
CAS-BOT-BC278436
Festuca idahoensis
John Thomas Howell
1934-7-7
12471
Lassen
Pine Creek Flat
Comment
CHSC27575
Festuca idahoensis
Robert Schlising
1978-7-11
3316
Lassen
S of Eagle Lake at Papoose Creek.
1584
Comment
UC1026711
Festuca idahoensis
Leo Whitney
1935-6-23
3295
Lassen
Camp 10, Fruit Grower's Supply Company
Comment
UCD65977
Festuca idahoensis
L. Whitney
1935-6-23
3295
Lassen
Fruit Growers Supply Co. Camp #10.
Comment
UCR244064
Festuca microstachys
Jim Andre, G. L. Clifton
1993-6-9
19690
Lassen
Foothills of Sierra Nevada Mtns., Honey Lake Valley, c. 5 mi. west of Doyle (at U.S. 395), just inside Plumas NF boundary
1631
Comment
CHSC112779
Festuca myuros
Lowell Ahart; John Dittes, Todd Sloat
2013-6-9
18784
Lassen
Along a fence on the west side of McArthur Diversion Canal, 2.1 air-miles south of Rat Farm Boat Launch, 1.2 air-miles north of McArthur, Fall River Valley, McArthur Swamp.
1007
Comment
UC1024937
Festuca occidentalis
Leo Whitney
1935-6-27
3337
Lassen
Camp 10, Fruit Grower's Supply Company Lassen National Forest
Comment
UC173146
Floerkea proserpinacoides
T. S. Brandegee
1892-7-2
Lassen
Susanville
Comment
UCD39134
Frasera albicaulis
Beecher Crampton
1964-6-26
7083
Lassen
32 miles n.w. Susanville west end of Harvey Valley.
Comment
RSA392153
Frasera albicaulis var. nitida
Rockwell
1925-7-1
s.n.
Lassen
Eagle Lake
Comment
RSA122218
Fritillaria atropurpurea
K. e. Bradshaw
1939-5-27
232
Lassen
Lassen Forest. S. end Black Mt. Experimental Forest, Plot 39-1.
1753
Comment
JEPS25525
Galium aparine
Rimo Bacigalupi with Lincoln Constance
1959-7-16
7137
Lassen
US Hwy 395 one fourth mi s junction of road to Smokey Creek (playa beside road)
1341
Comment
CDA42123
Galium aparine
T. C. Fuller
1963-7-15
10897
Lassen
Prescott Canyon, 2.5 miles north of Hayden Hill, ca. 15.5 miles south of Adin.
0
Comment
HSC63933
Galium bifolium
Teresa Prendusi
1980-7-21
Lassen
Fredonyer Peak
2195
Comment
RSA121073
Galium bifolium
L. R. Short, W. Gansberg
1936-6-2
S- 368
Lassen
Lassen forest. MDM.
1851
Comment
UC1037337
Galium bolanderi
Leo Whitney
1933-9-10
1900
Lassen
near Willow Spring (14 mi se of Bieber)
1645
Comment
RSA716143
Galium boreale subsp. septentrionale
L. Ahart, John Dittes
2005-6-2
11981
Lassen
N side of a poor dirt road. Long Valley. About 4.5 miles (air) NE of the intersection of Scott Road and Hwy 70. 5.7 miles (air) NW of Hallelujah Jct.
1411
Comment
UC1479581
Galium multiflorum
G. Schoolcraft
1980-5-30
245
Lassen
sw Herlong; Bird Canyon
1432
Comment
UC157915
Galium multiflorum
Milo S. Baker
1890-1
Lassen
Milford
Comment
JEPS6562
Galium trifidum var. pacificum
Brown and Wieslander
1922-7-30
46
Lassen
Martin Sprs. Eagle Lake
Comment
RSA201323
Galium trifidum var. pusillum
J. T. Howell
1959-9-23
34886
Lassen
end of Juniper Lake.
2058
Comment
CHSC105246
Gayophytum diffusum subsp. diffusum
Lowell Ahart; John Dittes
2010-7-31
17020
Lassen
On the north side of the road, about 30 yards east of the large culvert, where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin.
1516
Comment
RSA719874
Gayophytum diffusum subsp. diffusum
Michael A. Vincent, K. Levings
2006-7-29
12902
Lassen
Along Rt. 36, 14.3 miles west of Susanville.
Comment
UC506925
Gayophytum diffusum subsp. parviflorum
George A. Fischer and Irwin H. Johnson
1933-7-14
F 247
Lassen
Lassen National Forest
1767
Comment
UCSB64021
Gayophytum humile
Ahart, Lowell; Howell, John
1974-7-9
Lassen
Near S edge of Eagle Lake
1584
Comment
UC1714624
Gayophytum ramosissimum
Franklin P. Nutting
1894-7-5
Lassen
Dixey Valley
Comment
JEPS28703
Gentianella amarella subsp. acuta
George W. Gillett
1957-7-28
929
Lassen
1 mi above Butte Lake (on Widow Lake trail); Lassen Volcanic National Park
1905
Comment
POM88686
Geranium pusillum
Marcus E. Jones
1897-6-25
s.n.
Lassen
Susanville.
1341
Comment
CHSC77216
Geranium richardsonii
Schoolcraft
1999-6-25
2840
Lassen
SW of Lost Lake on SE slopes of Warner Mtns.
2225
Comment
UC1037229
Geranium viscosissimum
Leo Whitney
2007
Lassen
ca 8 mi nw Eagle Lake; Lassen National Forest, Slate Creek
1920
Comment
CHSC71389
Geranium viscosissimum var. nervosum
Vernon H. Oswald; Beth Corbin, Gary Schoolcraft
1998-7-13
9261
Lassen
Forest Route 38N04 between Hwy. 139 and Williams Reservoir 1.2 mi east of the road to Smith Flat, 2.0 mi northeast of Hwy. 139 at Willow Creek Campground.
1664
Comment
UC72970
Geum macrophyllum
Milo S. Baker
1894-7-12
Lassen
Pine Creek
Comment
SEINET6702766
Geum macrophyllum var. perincisum
G. Schoolcraft
1994-8-2
2393
Lassen
About 2 miles northwest of Boot Lake
2438
Comment
CAS-BOT-BC143570
Geum triflorum
A. G. Brenneis
1928-7-3
B 14
Lassen
Lassen National Forest, Jesson Valley
1463
Comment
CHSC60847
Geum triflorum
Vernon H. Oswald; Lowell Ahart
1993-6-28
5603
Lassen
Rd. 35N04 at Aspen Well, N of Hwy 44 on the NW edge of Harvey Valley, NE of Poison Lake.
1725
Comment
JEPS47198
Geum triflorum
Frances D. Payne
1929-7-12
87
Lassen
on ridge above Lost Lake (Upper Silver Creek, northwestern Lassen County); Warner Mountains, Upper Silver Creek
2286
Comment
CHSC1549
Geum triflorum var. ciliatum
1944-7-5
Lassen
Champ's Flat west of Eagle Lake.
1584
Comment
JEPS87404
Gilia capillaris
Vernon H. Oswald and Lowell Ahart
1993-6-28
5616
Lassen
on Rd 33N06 n Hwy 44 (sse flank of mt., nne of Burgess Meadow, ne of Poison Lake); Harvey Mtn.
1798
Comment
CHSC106676
Gilia inconspicua
B. Ignacio
2008-5-3
Lassen
Fort Sage Mountains.
1520
Comment
UC1584002
Gilia lottiae
G. Schoolcraft
1990-6-12
2085
Lassen
about 17 mi e Ravendale (in Pine Dunes RNA); e of Ravendale in Pine Dunes RNA
1706
Comment
RSA104235
Gilia malior
Verne Grant, Alva Grant
1956-5-17
9798
Lassen
Just south of Secret Valley, north of Litchfield, along Hwy. 395.
1311
Comment
RSA0068910
Gilia minima
Marcus E. Jones
1897-6-30
s.n.
Lassen
Eagle Lake, 27 miles from Susanville.
1524
Comment
CHSC66283
Glyceria borealis
Vernon H. Oswald; Lowell Ahart
1996-6-24
7872
Lassen
Modoc Plateau. Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake. In Papoose Creek where it leaves the N end of the meadow.
1633
Comment
JEPS123845
Glyceria borealis
Lowell Ahart, John Dittes
2015-7-14
20326
Lassen
About 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
Comment
OBI77053
Glyceria borealis
Anthony Baniaga
2011-7-23
463
Lassen
Lassen NF. Poison Lake. Poison Lake quad T32N R7E sec 4
1700
Comment
CHSC64755
Glyptopleura marginata
Vernon H. Oswald
1995-5-24
6782
Lassen
Modoc Plateau. 1.8 mi s of Wendel Rd. (Lassen 320) on an unsigned dirt road 0.6 mi e of milepost 19.0, just e of Skedaddle Creek. On the east side of the road ca. 0.2 mi n of the railroad.
1219
Comment
CHSC106065
Gnaphalium palustre
Lowell Ahart; John Dittes
2010-7-31
16995
Lassen
Dry meadow on the bottom of a small wash, about 5 yards north of the large culvert, where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin.
1516
Comment
POM38258
Gnaphalium palustre
Marcus E. Jones
1897-6-18
s.n.
Lassen
Chat. [also Chats, a former settlement]
1524
Comment
UC1483835
Gnaphalium palustre
G. Schoolcraft
1980-7-22
Lassen
nw of BLM fire station (along Hwy 395)
1630
Comment
CHSC60854
Gratiola ebracteata
Vernon H. Oswald; Lowell Ahart
1993-6-28
5625
Lassen
N of Hwy. 44 along Rd. 33N47 at the NE end of Little Harvey Valley, between Champs Flat and Harvey Valley, E of Poison Lake.
1737
Comment
UC1533149
Gratiola ebracteata
G. Schoolcraft
1986-7-28
1664
Lassen
along edge Moll Res. (w of Ash Valley); w of Ash Valley
1606
Comment
CHSC65359
Gratiola heterosepala
Vernon H. Oswald; Lowell Ahart
1995-8-14
7200
Lassen
Modoc Plateau. Horse Lake Rd. (Lassen 536) at a BLM reservoir 11.3 mi W of Hwy. 395, N of Susanville.
1737
Comment
CDA23422
Grayia spinosa
G. D. Barbe, P. Hiatt, M. Keffer
1980-6-4
2799
Lassen
Secret Creek drainage, west side of Highway 395 at the foot of basaltic Saddle Rock, 15 miles (24.1 km) south of Ravendale.
0
Comment
CHSC34404
Grayia spinosa
P. Reynolds
1979-7-4
20
Lassen
1 mi. ne of Wendel. Base of Wendel Canyon.
1295
Comment
CHSC64781
Grayia spinosa
Vernon H. Oswald
1995-5-24
6764
Lassen
Modoc Plateau. Wendel Rd. (Lassen 320) 3.3 mi e of Amedee Rd. at Wendel. At the base of Amedee Mtns.
1249
Comment
OBI77052
Grayia spinosa
Anthony Baniaga
2011-7-1
411
Lassen
Ownership unk. E of Doyle, alongrd to Fort Sage Mts.
1288
Comment
UC585073
Grayia spinosa
E. B. Babcock and G. L. Stebbins Jr.
1936-6-8
1777
Lassen
4 mi. s. Ravendale (n. end Secret Valley); n. end Secret Valley
1371
Comment
UCD55266
Grayia spinosa
Ellen Dean
2006-5-15
3064
Lassen
East of town of Susanville, along County Road A27 (Center Road). Private land north of California Correctional Facility owned by Virginia Johnston, to be purchased by state for expansion of alfalfa fields.
1249
Comment
JEPS124631
Grindelia nana
Virginia Hardham
1965-7-13
132
Lassen
Along roadside 1.4 mi past junction of As and 299.
Comment
UC1220391
Gypsophila paniculata var. paniculata
T. C. Fuller
1963-7-16
11013
Lassen
Janesville; hillslope n of cemetary
Comment
HSC69598
Hackelia californica
Gary Schoolcraft
1980-7-15
310
Lassen
W of Biebes
1799
Comment
CAS-BOT-BC231155
Hackelia cusickii
Mrs. A S. Baldwin
1930-5-1
s.n.
Lassen
Coyote Creek lava bed
Comment
CAS-BOT-BC231156
Hackelia cusickii
Mrs. A S. Baldwin
1928-5-1
s.n.
Lassen
Coyote Flat, over ridge from Dixie Village
Comment
SBBG63470
Hackelia velutina
E. Rockwell
-Jun-1925
53
Lassen
Eagle Lake
1554
Comment
UC1042370
Halogeton glomeratus
Tho. H. Kearney and John Thomas Howell
1951-8-20
28229
Lassen
near Herlong; Honey Lake Valley
1280
Comment
CDA36354
Halogeton glomeratus
B. Villegas
2011-8-25
Lassen
Near Wendel; on Wendel Rd., 0.4 mile from Amadee Rd.
0
Comment
UCD98889
Halogeton glomeratus
Les Berry; J. L. Myler, Beecher Crampton
1954-8-17
s.n.
Lassen
near Karlo.
Comment
UCD98893
Halogeton glomeratus
Les Berry; J. L. Myler, Beecher Crampton
1954-8-17
s.n.
Lassen
near Karlo.
Comment
UCD98902
Halogeton glomeratus
R. Tofsrud; J. M. Tucker
1950-7-26
1978
Lassen
Herlong Army Ordnance Depot, southeastern Lassen County.
Comment
POM359823
Helianthella californica var. nevadensis
L. S. Rose
1933-7-2
33268
Lassen
Westwood.
1524
Comment
CAS-BOT-BC305408
Helianthus annuus
Louella Bass
1980-8-3
s.n.
Lassen
Standish
Comment
CHSC7647
Helianthus annuus
Beverley J. Wise
1948-8-23
21
Lassen
5 mi. N.W. of Susanville of Las. Co. Rd. 201.
1371
Comment
CAS-BOT-BC305410
Helianthus annuus
Verne Grant; Irving Schneider
1947-7-31
8215
Lassen
Northeast quarter of George Williams section 19, Madeline Plain
Comment
CHSC64756
Helianthus cusickii
Vernon H. Oswald
1995-5-31
6798
Lassen
Modoc Plateau. Smoke Creek Ranch Rd. 0.4 mi e of Hwy. 395, between Litchfield and Ravendale.
1383
Comment
CAS-BOT-BC305665
Helianthus cusickii
A. A. Heller
1938-6-23
15209
Lassen
On the grade east of Mapes on U. S. Highway #395
1371
Comment
HSC5797
Helianthus nuttallii
M. T. Milligan
1964-7-16
134
Lassen
2 mi. N on the Silver Lake Rd., along Upper Susan River.
1829
Comment
CHSC92142
Heliotropium curassavicum
L. P. Janeway
2005-8-27
8527
Lassen
High Cascade Range. Northwest shore of Eagle Lake; east end of Sandy Beach, west side of Rocky Point. Gently sloping southwest-facing shoreline.
1550
Comment
RSA783699
Heliotropium curassavicum
R. R. Halse
2010-8-25
8086
Lassen
Along State Hwy 139 ca. 26.2 mi N of Susanville on NE shore of Eagle Lake.
1559
Comment
JEPS94967
Hemizonella minima
Vernon Oswald and Lowell Ahart
1997-6-24
8592
Lassen
s of Susanville (1.2 mi e of Gold Run Road (29N10), on the n side of Diamond Mountain on Forest Road 29N43); Diamond Mountain, Forest Road 29N43
1685
Comment
SJSU8133
Hemizonella minima
J. W. Tilden
1960-6-27
1500
Lassen
outskirts of Westwood at foot of Moonlight Rd
1524
Comment
POM360351
Hemizonia lobbii
J. T. Howell
1934-7-3
12380
Lassen
Big Valley, near Bieber
Comment
CHSC61154
Hesperochiron californicus
Vernon H. Oswald; Lowell Ahart
1993-5-12
5377
Lassen
Canal crossing Hwy. 44, 3.5 mi NW of A21 (to Westwood), at a large, meadowy flat covered with dwarf sagebrush and scattered small pines.
1729
Comment
POM73736
Hesperochiron californicus
Marcus E. Jones
1897-6-19
s.n.
Lassen
Chat.
1524
Comment
SEINET5498645
Hesperochiron californicus
D. E. Brix
1962-5-2
s.n.
Lassen
Spring 2 miles from Junction of Red Rock Rd. and Hwy 395
1433
Comment
UC1069088
Hesperochiron pumilus
A. Simontacchi
1940-5-9
696
Lassen
4.4 mi. s.-s.e. of B.M. 7310 on Blacks Mt.; Lassen Nat'l Forest, Halls Flat Quad.
Comment
JEPS17743
Hesperolinon micranthum
Rimo Bacigalupi with G. T. Robbins
1955-7-21
5416
Lassen
along Smoke Creek Ranch Rd. 6 mi e jnct. with U.S. 395; Bull Flat, Deep Creek
1428
Comment
JEPS32314
Hesperolinon micranthum
T. S. Brandegee
1892-6-30
Lassen
Susanville
Comment
UC1601275
Hesperolinon micranthum
Leo Whitney
1934-7-8
1793
Lassen
open flat near Harvey Valley Spring (ca 14 mi w of Eagle Lake); Lassen National Forest
Comment
UC17262
Hesperolinon micranthum
M. S. Baker and Frank Nutting
1894-7-2
Lassen
s side Dixey Mts.
Comment
CAS-BOT-BC280679
Hesperostipa comata
Margaret Williams; Steven Williams
1974-7-26
74 -L-43
Lassen
Near Hallelujah Junction, west of Hwy 395 and south of Hwy 70
1493
Comment
CHSC60795
Hesperostipa comata subsp. comata
Vernon H. Oswald; Lowell Ahart
1993-6-14
5542
Lassen
Eagle Lake Rd. (Lassen A1) at Sandy Beach on the W shore of Eagle Lake, ca. 2.0 mi ENE of Spaulding Tract Rd. (Rd. 518, 33N89). On the N side of the road.
1566
Comment
JEPS103227
Heterocodon rariflorum
G. Schoolcraft
1997-7-14
2609
Lassen
Decomposed granite S of Milford
1402
Comment
CHSC50819
Heterotheca villosa var. minor
Vernon Oswald; Lowell Ahart
1990-7-25
4397
Lassen
Intersection of Hwy 70 and Scott Rd, 2.2 mi west of Hwy 395. Roadside.
1463
Comment
SEINET1910062
Heterotheca villosa var. minor
Barbara Ertter
1987-1
7302
Lassen
Lassen Co.: ca 3/4 mi ENE of Beckwourth Pass at end of old crumbling paved road; meadow at head of streamlet in sagebrush zone.
1524
Comment
RSA0063206
Heuchera rubescens var. alpicola
Barbara Ertter, Gary Schoolcraft
1987-6-16
7201
Lassen
Skeedaddle Mtns on NE side of Honey Lake. Between Hot Springs Peak and VABM.
2256
Comment
HSC68934
Hieracium albiflorum
Gary Schoolcraft
1980-7-29
345
Lassen
On Big Valley Mtn. Timber sale area W of Bieber
1768
Comment
JEPS28670
Hieracium albiflorum
George W. Gillett
1957-7-24
895
Lassen
dry flats between Cameron Meadow and Snag Lake; Lassen Volcanic National Park
1950
Comment
POM36066
Hieracium albiflorum
Marcus E. Jones
1897-6-25
s.n.
Lassen
Susanville.
1341
Comment
CAS-BOT-BC318712
Hieracium horridum
Wm. Bridge Cooke
1938-9-17
11703
Lassen
Canyon below Horse Camp, Mount Shasta
2133
Comment
UCD18951
Hieracium nudicaule
Raymond D. Ratliff
1965-8-5
43
Lassen
Lassen National Forest, Harvey Valley Allot. (HV 20-14 'area').
1725
Comment
HSC13458
Hippuris vulgaris
Fred J. Kindel
1955-6-27
Lassen
Mt. Meadows Reservoir.
Comment
SD8400
Holodiscus discolor
R. M. Austin
July 1882
Lassen
Comment
UC1024652
Hordeum brachyantherum subsp. brachyantherum
Leo Whitney
1933-8-2
2202
Lassen
ca 8 mi nw Eagle Lake (Slate Creek); Lassen National Forest, Slate Creek
1920
Comment
UC1024786
Hordeum jubatum
Leo Whitney
1933-8-16
2237
Lassen
Eagle Lake Lassen National Forest, Eagle Lake
1584
Comment
UC53726
Hordeum jubatum
J. Burtt Davy
1897-6-17
Lassen
Reus
Comment
UCD85785
Hordeum marinum subsp. gussoneanum
A. A. Beetle; G. L. Stebbins Jr.
1942-5-29
3368
Lassen
5.2 miles E of Bieber, Big Valley.
Comment
UCD55288
Hordeum murinum subsp. glaucum
Ellen Dean; Gary Schoolcraft
2006-5-16
3107
Lassen
East of town of Susanville, along County Road A27 (Center Road). Private land north of California Correctional Facility owned by Virginia Johnston, to be purchased by state for expansion of alfalfa fields.
1244
Comment
CAS-BOT-BC284896
Hordeum murinum subsp. leporinum
John Thomas Howell
1973-7-10
49801
Lassen
Susanville
1295
Comment
CAS-BOT-BC55478
Hornungia procumbens
Arnold Tiehm
1980-5-29
5749
Lassen
North end of Honey Lake Valley, just north of Hot Springs 1.1 air miles north northwest of Wendel.
1231
Comment
CAS-BOT-BC213003
Hosackia crassifolia
John Thomas Howell
1974-7-10
50551
Lassen
Elysian Valley
1325
Comment
CHSC25089
Hydrophyllum capitatum var. alpinum
K. R. Stern
1967-6-25
2428
Lassen
Road to Eagle Lake Biological Station, Dean's Meadow near Gallatin Peak, ca. 3 mi. S of Eagle Lake.
1676
Comment
SEINET5518818
Hydrophyllum occidentale var. watsonii
C. G. Gulling
1905-1
s.n.
Lassen
Big Meadows
Comment
POM95280
Hymenolobus procumbens
Marcus E. Jones
1897-6-19
s.n.
Lassen
Chat
1616
Comment
CHSC13636
Hypericum formosum var. scouleri
1974-7-10
283
Lassen
Abundant along creek in meadow ca. 2 mi e of Gallatin Beach, ca. 1/2 mi s of Eagle Lake, ca. 13 mi nw of Susanville.
1524
Comment
JEPS88401
Hypericum formosum var. scouleri
Vernon H. Oswald and Lowell Ahart
1996-8-1
8127
Lassen
ca. 2 mi. n. Dyer Mt. Lookout (Forest Rd. 28N56 (D-Line), on downhill side of rd., s.-s.w. of Westwood)
1737
Comment
HSC93315
Hypericum scouleri
Vernon H. Oswald, L. Ahart
1996-8-1
8127
Lassen
FS Rd. 28N56 (D-line), 2 mi. N of Dyer Mtn. Lookout, SSW of Westwood
1738
Comment
UCD115194
Idahoa scapigera
R. N. Raynor
1940-4-16
s.n.
Lassen
Big Valley.
Comment
HSC82266
Ipomopsis congesta
Thomas W. Nelson, Jane P. Nelson
1980-7-6
5991
Lassen
Along Adin-Madelin Rd., 16 mi. E of Adin in Ash Valley
1555
Comment
SD7674
Ipomopsis congesta
Mrs. R. M. Austin
1880-1
Lassen
Lassen Peak.
Comment
GMDRC6447
Ipomopsis congesta subsp. congesta
J. M. Andre, Glenn Clifton
1993-6-14
30000
Lassen
northeast base of Shaffer Mtn near Secret Creek, about 20 miles ENE of Susanville
1646
Comment
CHSC36493
Iris missouriensis
Theresa Costa
1982-6-4
33
Lassen
Ca. 3/4mi n Murrer's Upper Meadow.
Comment
UC117143
Iris missouriensis
Mrs. R. M. Austin
1879-1
302
Lassen
Eagle Lake
Comment
CHSC66711
Isoetes howellii
Vernon H. Oswald; Lowell Ahart
1996-8-1
8111
Lassen
Mountain Meadows Reservoir SW of Westwood. NE of Indian Ole Dam.
1539
Comment
CHSC44875
Iva axillaris
Lowell Ahart; John Thomas Howell
1974-7-9
529
Lassen
Along the edge of Eagle Lake Road, about 3 miles north-west of Susanville.
1584
Comment
RSA126721
Iva axillaris subsp. robustior
Peter H. Raven, Otto T. Solbrig
1958-6-17
13265
Lassen
Along Hwy 395, 11.8 miles NE of Litchfied
Comment
UC1069681
Iva axillaris subsp. robustior
E. Sawyer
1935-6-27
221
Lassen
Long Valley; Sierraville Quadrangle
Comment
UC177069
Iva axillaris subsp. robustior
T. S. Brandegee
1892-6-25
Lassen
Honey Lake Honey Lake
Comment
SEINET10971179
Iva axillaris subsp. robustior
Mary Susan Taylor
1982-8-19
Taylor 5022
Lassen
T23N R17E ne sec 23? Beckwourth Pass quad. E side of Hwy 395, ca. 4 mi n of its jct with Hwy 70 at Hallelujah Jct. Sagebrush Scrub; 4900 ft.
1493
Comment
CDA8046
Iva xanthifolia
Lee Wheeler
1963-7-16
Lassen
Susanville.
0
Comment
CAS-BOT-BC148543
Ivesia paniculata
James R. Shevock
1986-7-20
11740
Lassen
Ash Valley BLM Research Natural Area. Along Ash Valley Road about 16 miles west of Madeline and U.S. highway 395 - Modoc Plateau
1550
Comment
CHSC63416
Ivesia paniculata
V. H. Oswald; G. Schoolcraft, M. Dolan, B. Corbin
1994-6-26
6352
Lassen
Ash Valley Research Natural Area along a 'road' leading south from the right-angle turn on Lassen 527 at the gravel pit, between Adin and Madeline.
1554
Comment
JEPS109845
Ivesia webberi
Dean W. Taylor
2004-5-11
19062
Lassen
Seven Lakes Mountain, northwestern end flanking Dry Valley, along jeep road ca. 1 mile from Nevada State Line
1341
Comment
CAS-BOT-BC109935
Juncus
John Thomas Howell
1976-7-19
51988
Lassen
Sierra Nevada. On Gold Creek southwest of Susanville.
1386
Comment
UC1924587
Juncus
Debra Valov
2006-5-28
2006017
Lassen
Bieber off County Rd A2 c. 8 km east of Hwy 299
1271
Comment
UC1100949
Juncus balticus
Verne Grant and Irving Schneider
1947-7-31
8211
Lassen
ne quarter of George Williams section 19 Madeline Plain
Comment
UCR244138
Juncus balticus
Jim Andre, G. L. Clifton
1993-6-9
19700
Lassen
Foothills of Sierra Nevada Mtns., Honey Lake Valley, c. 5 mi. west of Doyle (at U.S. 395), just inside Plumas NF boundary
1631
Comment
CHSC112771
Juncus balticus subsp. ater
Lowell Ahart; John Dittes
2013-7-23
18903
Lassen
Drainage, about 150 yards northwest of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
JEPS88220
Juncus brachyphyllus
Vernon H. Oswald and Lowell Ahart
1996-6-17
7805
Lassen
n side og Bizz Johnson Trail between Devils Corral Trailhead and 6.0 milepost (trailhead off Hwy 36 ca 7 mi w of Susanville); Modoc Plateau
1420
Comment
POM261438
Juncus bufonius var. occidentalis
Alice Eastwood, John Thomas Howell
1940-6-16
8339
Lassen
Janesville.
Comment
UC1136937
Juncus confusus
L. R. Short and J. Warren
1936-6-10
S- 418
Lassen
Burgess Spr. Exp. Range Lassen Forest
1856
Comment
CHSC66416
Juncus dudleyi
Vernon H. Oswald; Lowell Ahart
1996-6-17
7817
Lassen
Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville. Modoc Plateau. On the edge of a marshy pool at the 6.0 mile post E of Devils Corral Trailhead.
1420
Comment
JEPS96098
Juncus dudleyi
Vernon H. Oswald and Lowell Ahart
1996-6-17
7817
Lassen
Bizz Johnson Trail at 6.0 milepost e Devils Corral Trailhead (trailhead located off Hwy 36 ca 7 mi w of Susanville); Modoc Plateau
1420
Comment Read comments Feb 14 2008
JEPS87448
Juncus hemiendytus var. abjectus
Vernon H. Oswald and Lowell Ahart
1993-6-3
5481
Lassen
between Poison Lake and Susanville (s. side of Pine Creek Valley, Champs Flat Rd. (Lassen 105, Forest 32N28Y), where it diverges from Lassen 21 (32N02) to Eagle Lake); Pine Creek Valley
1725
Comment
CHSC108000
Juncus hemiendytus var. hemiendytus
Lowell Ahart; John Dittes
2011-6-20
17480
Lassen
About 15 yards west of the stream, about 40 yards north of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin.
1520
Comment
CAS-BOT-BC245809
Juncus hemiendytus var. hemiendytus
Alice Eastwood; John Thomas Howell
1940-6-11
s.n.
Lassen
SW of Nubieber, Big Valley Mts.
Comment
SEINET3507366
Juncus longistylis
Marcus E. Jones
1897-6-30
Lassen
Susanville, 4 miles below Eagle Lake
Comment
UC1543894
Juncus luciensis
John Thomas Howell and Louella Bass
1974-7-10
50538
Lassen
Elysian Valley Sierra Nevada
1325
Comment
CHSC5268
Juncus nevadensis
1944-7-26
Lassen
Eagle Lake. Juniper Lake.
2055
Comment
UC1133741
Juncus nevadensis
A. Simontacchi
1940-6-7
894
Lassen
6.4 mi sse Beaver Spring; Lassen National Forest, Halls Flat Quad.
1752
Comment
UC1142989
Juncus nevadensis
A. L. Hormay
1941-6-26
28
Lassen
Westwood Junction Lassen National Forest
1737
Comment
UC1609497
Juncus nevadensis
Vernon H. Oswald and Lowell Ahart
1993-8-3
5745
Lassen
ca. 13 (air) mi. n. Lake Almanor (s.w. edge of Cooper Swamp located e. of Silver Lake just e. of Caribou Wilderness); Cooper Swamp
1932
Comment
RSA647524
Juncus nevadensis
Marion P. Harthill
1974-6-14
1518
Lassen
Madeline.
152
Comment
UC1601784
Juncus nevadensis
Baker and Nutting
1894-7-3
Lassen
Dixie Creek
Comment
JEPS121289
Juncus nevadensis var. nevadensis
Lowell Ahart, John Dittes
2013-7-23
18906
Lassen
On the SW side of a man-made pond, about 160 yards NW of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley.
Comment
JEPS105651
Juncus occidentalis
L. P. Janeway
2001-6-20
7192
Lassen
High Cascade Range. South side of the junction of the ''22'' road and Road 34N41; about 5.6 km south of Dixie Valley and 8.9 km north of Harvey Mountain
1560
Comment
JEPS117620
Juncus tenuis
Lowell Ahart, John Dittes
2010-7-31
17026
Lassen
About 20 yards northeast of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin
1520
Comment
RSA0035254
Juncus trilocularis
Peter F. Zika
2008-7-14
23893
Lassen
S side of Route 44, SE end of Grays Valley near Lodgepole, Cascade Range Highlands.
1730
Comment
JEPS126524
Juncus uncialis
Lowell Ahart, John Dittes
2016-6-7
21013
Lassen
10 yards west of State Highway 299, Big Valley Mountains, 0.4 mile (air) northeast of Big Valley Summit, 5.0 miles (air) southwest of Bieber.
Comment
SEINET3864776
Juniperus occidentalis
Stanley L. Welsh, N. Duane Atwood
2001-6-13
28123
Lassen
Ca. 2 mi n of jct of Hwy 395 and Hwy 70, e of Beckwourth Pass.; 0
1575
Comment
SEINET3864782
Juniperus occidentalis
Maile Neel
2000-4-29
G- 1
Lassen
Northern Sierra Nevada Mtns. Six miles west of Susanville on Hwy 36 at intersection with Eagle Lake Road (A1) near Eagle Ranger Station, Lassen National Forest. (Susanville 7.7'Q).; 0
1400
Comment
RSA719706
Juniperus occidentalis var. occidentalis
Michael A. Vincent, K. Levings
2006-7-29
12922
Lassen
Along Rt. 395 pull-off, 3.1 miles north of Rt. 70, 7.7 miles north of Sierra County line
Comment
SEINET10719654
Juniperus occidentalis var. occidentalis
Karen M. Meyer, Andrew Townesmith
2007-7-19
Meyer 132
Lassen
Lassen National Forest. Ca. 0.2 mi. on 29N03, off Hwy. 36 on pullout just past a dry creek.
1459
Comment
SEINET11056886
Juniperus occidentalis var. occidentalis
D. Charlet
1993-7-13
1582
Lassen
Fort Sage Mountains, along road W of OHV trailhead.
1450
Comment
NY20362
Juniperus osteosperma
N. H. Holmgren
1970-7-28
4625
Lassen
This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request.
Comment
NY20366
Juniperus osteosperma
J. T. Howell
1961-9-26
36969
Lassen
This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request.
Comment
UC567069
Juniperus osteosperma
C. G. Albertus
1935-11-1
294
Lassen
2.1 mi ene Chats
1569
Comment
UCR3784
Juniperus osteosperma
Frank C. Vasek
1964-9-12
640912- 03
Lassen
Calif. Hwy 70 (alt. US Hwy 40), 1.6 mi west of its junction w/ US Hwy 395
Comment
SEINET5335014
Juniperus osteosperma
P. A. Lehenbauer
1937-10-24
s.n.
Lassen
east & south of Hallelujah Sta. 20 miles N of Reno
Comment
UC1609265
Kelloggia galioides
Vernon H. Oswald and Lowell Ahart
1993-7-8
5657
Lassen
se edge Poison Lake (1.9 mi n of Hwy 44, Pittville Rd (Lassen 111, 36N01), between the railroad and the lake)
1709
Comment
UC889305
Kelloggia galioides
C. L. Hitchcock
1940-5-26
6602
Lassen
ca 12 mi n Fall River Mills, Shasta County (on Fall River); Fall River
1371
Comment
NY539721
Kochia americana
G. Schoolcraft
1998-9-14
2808
Lassen
Honey Lake Valley northwest of Duck Lake
1219.2
Comment
UCR244048
Kochia americana
Jim Andre
1993-6-1
19718
Lassen
Sierra Nevada/Great Basin, Honey Lake Valley, north end of Honey Lake, c. 20 mi. E of Susanville, at Wendel
1218
Comment
CAS-BOT-BC271330
Koeleria pyramidata
David D. Keck
1944-7-8
5447 A
Lassen
2 mi. E. of Westwood, in meadow leading down to Mountain Meadows Reservoir
1524
Comment
UC7389
Krascheninnikovia lanata
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3327
Lassen
Honey Lake Valley
1219
Comment
CAS-BOT-BC340319
Kyhosia bolanderi
A. A. Heller
1937-9-1
15342
Lassen
About a mile east of Westwood
1524
Comment
OBI75889
Kyhosia bolanderi
Anthony Baniaga
2011-8-16
499
Lassen
Lassen Natl Forest. Along F.S. 10, ca. 1 mi NE of Cummings Spring. Red Cinder quad. T30N R8E sec 7SE of SW
1920
Comment
CHSC71864
Lactuca saligna
Vernon H. Oswald; Lowell Ahart
1998-9-8
9574
Lassen
Hwy. 299 at the RR overpass on the east side of Nubieber.
1255
Comment
CHSC5214
Lactuca tatarica subsp. pulchella
1944-8-11
Lassen
Eagle Lake.
1584
Comment
JEPS38999
Lagophylla ramosissima
W. L. Jepson
1918-8-2
7776
Lassen
Bedswith Pass
1463
Comment
JEPS88243
Lagophylla ramosissima
Vernon H. Oswald and Lowell Ahart
1996-6-17
7782
Lassen
ca. 7 mi w Susanville (along Bizz Johnson Trail at 7 mile post on n side of Hwy 36 between trail and highway bridges spanning Susan River); Modoc Plateau
1432
Comment
UCR67436
Lagophylla ramosissima
George K. Helmkamp
1990-9-23
A- 10
Lassen
Northern Sierra Nevada Mountains, 3 mi east of Susanville, along State Road 36
1345
Comment
RSA795323
Lagophylla ramosissima subsp. ramosissima
L. Ahart, John Dittes
2010-7-31
16997
Lassen
On the north side of the road, about 5 yards west of the large culvert, where the road crosses Hunsinger Draw, 1.9 air miles northwest of Moll Reservoir, 2.8 air miles west of Ash Valley, 8.4 air miles southeast of Adin
1516
Comment
CHSC116100
Lamium amplexicaule
Lowell Ahart; John Dittes
2015-7-13
20315
Lassen
About 100 yards southwest of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
CHSC25306
Lappula redowskii var. cupulata
Pauleen Broyles
1977-6-1
153
Lassen
Skedaddle Ranch Road at South Fork Reservoir turn-off ca 8 km ne of Herlong.
1660
Comment
CHSC112414
Lasthenia glaberrima
Lowell Ahart; John Dittes, Todd Sloat
2013-6-8
18739
Lassen
Near a drainage filled with dirt from construction of a pond, about 100 yards west of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
JEPS114637
Lasthenia glaberrima
Lowell Ahart, John Dittes
2008-6-20
14901
Lassen
Sides of a vernal pool, about 100 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber
1263
Comment
JEPS114878
Lasthenia glaberrima
Lowell Ahart, John Dittes
2008-6-22
15041
Lassen
About 20 yards west of the road levee, along a small natural drainage, open meadow area, in Big Valley, about 2.1miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 5 miles (air) northeast of Bieber
1262
Comment
JEPS89760
Lasthenia glaberrima
Dean Wm. Taylor with Glenn L. Clifton, Rexford E. Palmer and Roy Buck
1988-6-6
9004
Lassen
road from Bieber to Lookout 0.5 mi s of the Modoc County Line (Big Valley, Pit River Watershed); Big Valley, Pit River Watershed
1249
Comment
CDA19744
Layia glandulosa
D. Tillotson
1942-6-9
s.n.
Lassen
Modoc Plateau; Mud Flat.
0
Comment
CHSC5215
Layia glandulosa
1944-6-28
Lassen
Eagle Lake.
1584
Comment
UCD55163
Layia glandulosa
Ellen Dean
2006-5-15
3051
Lassen
E of town of Susanville. Along C.R. A27 (Center Rd.) Grounds of California Correctional Facility.
1248
Comment
RSA337273
Layia glandulosa subsp. glandulosa
Noel Holmgren, Patricia K. Holmgren
1980-7-4
9506
Lassen
Observation Peak, south side of mountain, 18 km (11 mi) airline distance east of Ravendale.
1890
Comment
CHSC4842
Lemna trisulca
R. Carter
1967-7-13
591
Lassen
5 mi e of Eagle Lake Field Station, at point where rd comes nearest to Willow Cr.
1560
Comment
CHSC66278
Lemna trisulca
Vernon H. Oswald; Lowell Ahart
1996-6-24
7884
Lassen
Modoc Plateau. Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake. In meadow on the E side of Papoose Creek N of the springs.
1633
Comment
UC421730
Lemna trisulca
M. S. Baker and Frank Nutting
1894-7-25
Lassen
Willow Creek
Comment
UC1101286
Lemna turionifera
Malcolm A. Nobs, S. Galen Smith
1949-7-21
1051
Lassen
1 mi e of Madeline
Comment
CHSC112402
Lepidium appelianum
Lowell Ahart; John Dittes, Todd Sloat
2013-6-9
18785
Lassen
On the east side of the north-south road, on the west side of McArthur Diversion Canal, 2.1 air-miles of Rat Farm Boat Launch, 1.2 air-miles north of McArthur, Fall River Valley, McArthur Swamp.
1007
Comment
CHSC29943
Lepidium campestre
Robin L. Ondricek
1978-6-19
61
Lassen
Outside the lab at ELFS.
1554
Comment
CHSC75476
Lepidium chalepense
Vernon H. Oswald; Lowell Ahart
1999-6-9
9749
Lassen
Northeast of Susanville on County Rd. 216 at Biscar Wildlife Management Area: on the dam of the reservoir.
1353
Comment
CHSC99531
Lepidium chalepense
Lowell Ahart; John Dittes
2008-6-20
14978 -B
Lassen
Where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
1263
Comment
CAS-BOT-BC88939
Lepidium dictyotum
Arnold Tiehm
1980-5-29
5747
Lassen
North end of Honey Lake Valley, just north of Hot Springs 1.1 air mile north-northwest of Wendel.
1231
Comment
SEINET5342390
Lepidium dictyotum
A. Tiehm
1980-1
5747
Lassen
North end of Honey Lake Valley, just north of Hot Springs 1.1 air miles NNW of Wendel.
1231
Comment
CAS-BOT-BC89722
Lepidium latifolium
Gary Schoolcraft
1984-7-31
1330
Lassen
Along Highway 395 about 1 mile north of Ravendale Fire Station.
1615
Comment
NY76543
Lepidium latifolium
J. T. Howell
1975-7-23
51384
Lassen
Eagle Lake Lumber Company yard, Susanville
1295.4
Comment
CDA3793
Lepidium latifolium
Lee Wheeler
1962-8-15
Lassen
Ravendale area.
0
Comment
CHSC36444
Lepidium perfoliatum
Jeffrey R. Peek
1982-6-1
22
Lassen
Ca. 2 mi e jct Hwy 139 and Ravendale Rd. Ca. 10 yd e of Ravendale Rd.
Comment
UC1143000
Lepidium perfoliatum
August L. Hormay
1934-5-15
Lassen
nw of Black Mt.; Lassen National Forest, Forest and Range Expt. Sta.
1584
Comment
UCD115849
Lepidium perfoliatum
R. Tofsrud
1951-7-13
s.n.
Lassen
Susanville area.
Comment
NY90026
Lepidium perfoliatum
D. B. Dunn
1971-6-2
17749
Lassen
3 miles south of Hallelujah Junction, on US Highway 395, Junction of US 395 and California 70
Comment
JEPS53770
Lepidium virginicum var. virginicum
W. L. Jepson
1918-8-2
7763
Lassen
Beckwith Pass
1463
Comment
UC1226013
Leptodactylon pungens
Arthur Cronquist and Arthur H. Holmgren
1959-6-17
8472
Lassen
50 mi se Susanville
1371
Comment
CHSC27663
Leptosiphon harknessii
Robert A. Schlising
1978-7-1
3304
Lassen
S of Eagle Lake at east side of Mahogany Lake.
2060
Comment
HSC25423
Leptosiphon harknessii
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19252
Lassen
Harvey Valley near Cone Springs
Comment
CAS-BOT-BC334598
Leucanthemum vulgare
G. Schoolcraft
1987-6-17
1746
Lassen
Along Hwy 36 about 3 miles east of Westwood
1554
Comment
HSC30081
Leucocrinum montanum
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19264
Lassen
Harvey Valley near Cone Springs
Comment
UC1483858
Leucocrinum montanum
G. Schoolcraft
1979-5-3
17
Lassen
about 1 mi s Ravendale (at intersection of Horse Lake Road and Hwy 395)
1615
Comment
CAS-BOT-BC508364
Leucocrinum montanum
Ellsworth Bethel
1923-5-24
s.n.
Lassen
Poison Lake
Comment
CAS-BOT-BC508367
Leucocrinum montanum
John Thomas Howell; Gordon H. True; Margaret Williams
1973-5-12
49164
Lassen
Elysian Valley northwest of Janesville, Sierra Nevada
1325
Comment
HSC63766
Leucocrinum montanum
Teresa Prendusi
1980-5-6
Lassen
W side of SR 395, 0.25 mi. from old gas station
1616
Comment
SEINET12044970
Leucocrinum montanum
R. M. Austin
1879-1
s.n.
Lassen
Pine Creek
Comment
CHSC61168
Lewisia pygmaea
Vernon H. Oswald; Lowell Ahart
1993-5-12
5387
Lassen
Hwy. 44 between Poison Lake and A21 (to Westwood), 1.6 mi SE of Pittsville Rd. In a meadow on the N side of the road.
1719
Comment
JEPS28403
Lewisia triphylla
George W. Gillett
1957-7-21
863
Lassen
300 yds n Juniper Lake - Cameron meadow trail summit; Lassen Volcanic National Park
2118
Comment
CAS-BOT-BC444493
Lewisia triphylla
George W. Gillett
1957-7-21
863
Lassen
Lassen Volcanic National Park. Juniper Lake - Cameron Meadow trail
2118
Comment
UC1609507
Leymus cinereus
Vernon H. Oswald and Lowell Ahart
1993-6-14
5543
Lassen
Eagle Lake Rd (Lassen A1) at Sandy Beach on w. shore of Eagle Lake (n. side of rd., ca 2.0 mi e.-n.e. of Spaulding Tract Rd. (Rd. 518, 33N89))
1566
Comment
UC1037100
Leymus triticoides
Leo Whitney
1933-8-4
2128
Lassen
ca 10 mi nw north end of Eagle Lake; Lassen National Forest, Sheepshead
1889
Comment
UC38251
Leymus triticoides
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3320
Lassen
Honey Lake Valley
Comment
JEPS114874
Lilaea scilloides
Lowell Ahart, John Dittes
2008-6-20
14943
Lassen
In vernal pools and swales, about 100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber
1263
Comment
CHSC113073
Limosella acaulis
Lowell Ahart; John Dittes
2013-7-23
18889 A
Lassen
Around a man made pond, about 150 yards northwest of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
UC1184062
Linanthus ciliatus
Jean Langenheim
1957-6-26
4400
Lassen
nw Said Valley, from areas adjacent ot 1937 chaparral quadrat, e part of Lassen County Said Valley
Comment
SEINET10902894
Linanthus harknessii
Mary Susan Taylor
1974-1
Taylor 290
Lassen
Vicinity of Eagle Lake, ca. 13 mi NW of Susanville.
Comment
CHSC64802
Linanthus pungens
Vernon H. Oswald
1995-5-24
6758
Lassen
Modoc Plateau. Wendel Rd. (Lassen 320) 3.3 mi e of Amedee Rd. at Wendel. On a outcrop at the base of the Amedee Mtns.
1280
Comment
UC506914
Linum lewisii
George A. Fischer, Irwin H. Johnson
1933-7-14
F 264
Lassen
Lassen National Forest, Mt. Diablo Meridian Lassen National Forest; , Mt. Diablo Meridian
1767
Comment
CHSC106064
Linum lewisii var. lewisii
Lowell Ahart; John Dittes
2010-7-31
16981
Lassen
Dry meadow 10 yards northeast of the large culvert, where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin.
1516
Comment
UC1924245
Linum lewisii var. lewisii
Debra Valov
2004-6-3
2004237
Lassen
Hwy 139 c. 1 km S of Junction of County A2
1356
Comment
CHSC68872
Lithophragma glabrum
Vernon Oswald; Lowell Ahart
1997-6-24
8641
Lassen
South of Susanville near the small pond on the crest of Diamond Mtn., about midway between Aspen Flat and Red Rock Lookout.
2249
Comment
OBI77066
Lithophragma glabrum
Anthony Baniaga
2011-6-7
316
Lassen
Lassen NF. NW area of Grays Valley, just S of intersection of 33N11 and 32N83Y. Poison Lake quad T32N R7E sec 11 SW of NE
1747
Comment
UC1483825
Lithophragma glabrum
G. Schoolcraft
1980-4-8
201
Lassen
e side Shaffer Mountain; e side Shaffer Mountain
1463
Comment
UC1609478
Lithophragma tenellum
Vernon H. Oswald and Lowell Ahart
1993-6-3
5478
Lassen
Champs Flat Rd (Lassen 21/105, Forest 32N02), 3.7 mi n Hwy 44 at spur rd 32N02E (between Poison Lake and Susanville, se side of Pine Creek Valley); Pine Creek Valley, btw Poison Lake and Susanville
1731
Comment
UC506915
Lithospermum ruderale
George A. Fischer and Irwin H. Johnson
1933-7-19
F 262
Lassen
Lassen; Sec. 2
1783
Comment
POM101211
Loeflingia squarrosa
Marcus E. Jones
1897-6-18
s.n.
Lassen
Chat. [also Chats, a former settlement]
1524
Comment
JEPS105642
Lomatium bicolor var. leptocarpum
L. P. Janeway
2001-6-19
7186
Lassen
High Cascade Range. Southeast edge of Long Lake (which is dry) at west end of Long Valley; 6.4 km north-northwest of Harvey Mountain
1640
Comment
JEPS15825
Lomatium bicolor var. leptocarpum
M. S. Baker and Franklin P. Nutting
1894-6-20
Lassen
near Bieber (Big Valley); Big Valley
Comment
JEPS96063
Lomatium bicolor var. leptocarpum
Vernon H. Oswald and Lowell Ahart
1996-6-24
7855
Lassen
2.5 mi. s. Eagle lake (ca. 0.5 mi. e. of Eagle Lake Rd. (A1), w. side of meadow ca. 0.3 mi. s. of cabins); Modoc Plateau, Papoose Meadows
1633
Comment
UC1587046
Lomatium bicolor var. leptocarpum
G. Schoolcraft
1991-6-4
2145
Lassen
n. end Eagle Lake (e. of Hwy. 139)
1615
Comment
CHSC92830
Lomatium dissectum var. multifidum
Lowell Ahart; John Dittes
2005-6-2
11930
Lassen
Along the poor dirt road, about 1/4 mile west of the Anderson Ranch home, Long Valley, about 4 3/4 miles (air) north of the intersection of Scott Road and Highway 70, 6.5 miles (air) northwest of Hallelujah Junction.
1498
Comment
JEPS118183
Lomatium dissectum var. multifidum
Dean W. Taylor
2004-5-11
19059
Lassen
1.5 miles southwest of Constantina along Highway 395
1402
Comment
POM78757
Lomatium dissectum var. multifidum
Marcus E. Jones
1897-6-21
s.n.
Lassen
Chat.
1616
Comment
JEPS125805
Lomatium foeniculaceum subsp. macdougalii
William Harnach
2010-6-8
1243
Lassen
2 miles west of the California Nevada state line, north side of Fort Sage Road, northeast of Doyle, CA.
Comment
SEINET183892
Lomatium leptocarpum
L. Contance
1938-6-11
2327
Lassen
5 miles southwest of Susanville
1372
Comment
UC1483807
Lomatium macrocarpum
G. Schoolcraft
1980-4-30
214
Lassen
N of Shaffer Mountain
1365
Comment
CHSC66230
Lomatium nevadense var. nevadense
Vernon H. Oswald; Lowell Ahart
1996-6-24
7862
Lassen
Modoc Plateau. Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake.
1633
Comment
CHSC71065
Lomatium nevadense var. nevadense
Vernon H. Oswald; Lowell Ahart
1998-5-22
9120
Lassen
Road to summit of Fort Sage Mtns. 2.7 mi east of Fort Sage Rd., ca. 5 mi NE of Doyle.
1463
Comment
UC1567383
Lomatium nevadense var. nevadense
G. Schoolcraft
1989-5-3
1864
Lassen
near Karlo (n.w. corner Secret Valley); Secret Valley
1356
Comment
UC773965
Lomatium nevadense var. parishii
L. R. Short and Wm. Gansberg
1936-6-8
S- 400
Lassen
Lassen Forest, Burgess Spring Exp. Range
1783
Comment
CHSC42626
Lomatium nudicaule
Vernon Oswald
1986-5-28
2047
Lassen
Hwy 36, 11.3 mi e of the Plumas-Lassen Co. line, 0.5 mi sw of Fredonyer Pass.
1691
Comment
UC1167732
Lomatium nudicaule
Peter H. Raven with Otto T. Solbrig
1958-6-16
13250
Lassen
4.5 mi. e. Westwood (on State Hwy. 36)
Comment
CHSC68607
Lomatium ravenii
Vernon H. Oswald; Lowell Ahart
1997-5-7
8404
Lassen
Smoke Creek Ranch Rd. 2.9 mi east of Hwy. 395.
1359
Comment
JEPS25531
Lomatium ravenii
Rimo Bacigalupi with Lincoln Constance
1959-6-16
7145
Lassen
2 mi. s. Ravendale
1615
Comment
LA84783
Lomatium ravenii
Tracy Call; Viola Call
1961-5-30
2048
Lassen
about 2 mi. S of Ravendale
1462
Comment
UCR183195
Lomatium ravenii
Jim Andre, G. L. Clifton
1993-6-2
7716
Lassen
Along Hwy 395 c. 25 mi NE of Susanville at Viewland exit, east of Shaffer Mtn
1349
Comment
SEINET7883783
Lomatium triternatum
Unknown
1986-1
86- 20 -1
Lassen
Smoke Creek Rd., E of Hwy 395, T 30 N, R 16 E, Sec. 3
1433
Comment
CHSC29890
Lomatium triternatum var. macrocarpum
Robin L. Ondricek
1978-6-8
50
Lassen
.6 mi e of jct. With main road to ELFS on road to Murrers Upper Meadow.
1554
Comment
RSA0049611
Lomatium vaginatum
Dean Wm. Taylor
2012-6-7
21232
Lassen
Grasshopper Valley; Grasshopper Valley Road 2.3 road miles E of junction with Highway 139
1635
Comment
JEPS13678
Lonicera conjugialis
W. L. Jepson
1910-6-11
4119
Lassen
Snag Lake
1889
Comment
CHSC7677
Lotus corniculatus
Beverley J. Wise
1969-5-23
59
Lassen
35.5 mi. S.E. of Susanville on Las. Co. Rd. 320.
1249
Comment
UC80913
Lotus crassifolius var. crassifolius
unknown
1892-7-1
Lassen
Susanville
Comment
RSA339993
Lotus humistratus
Noel Holmgren, Patricia K. Holmgren, A. H. Holmgren
1980-7-3
9481
Lassen
Madeline Plains, Westside Road, 9 km (5.6 mi) west of U.S. Highway 395, 16 km (10 mi) airline distance northwest of Termo.
1620
Comment
CHSC24959
Lotus purshianus
K. R. Stern
1974-6-26
5858
Lassen
Ditch bank beside railroad track, e side of Poison Lake Rd. to Pittville, ca. 1.8 mi nw of intersection with Hwy. 44.
Comment
HSC23526
Lotus salsuginosus
R. Carter
1967-6-27
554
Lassen
10 yds. off N side of rd., 1.75 mi. W of Eagle Lake Biology Station
1585
Comment
SEINET3559881
Lotus tenuis
Arthur Cronquist, Arthur H. Holmgren
1959-6-17
8474
Lassen
Near Honey Lake, 1 mi SE of Milford, 26 mi SE of Susanville
1311
Comment
RSA122900
Lotus unifoliolatus
G. A. Fischer, Irwin H. Johnson
1933-7-12
193
Lassen
Grass Valley
1695
Comment
RSA28314
Lotus unifoliolatus
Marcus E. Jones
1897-6-25
s.n.
Lassen
Susanville.
1341
Comment
CHSC110911
Ludwigia palustris
Lowell Ahart; John Dittes
2012-7-9
18291
Lassen
About 100 yards southeast of the tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
CHSC117281
Ludwigia palustris
Lowell Ahart; John Dittes
2016-7-15
21220
Lassen
About 50 yards west of the road and about 400 yards south of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
JEPS64900
Lupinus angustiflorus
Brown and Wieslander
1922-7-23
61
Lassen
Martin Springs , Martin Springs (Eagle Lake)
Comment
CHSC30579
Lupinus arbustus
Sori H. Shad
1970-7-9
45
Lassen
Found at edge of Dean's Meadow.
1828
Comment
CHSC5286
Lupinus arbustus
1944-7-19
Lassen
Juniper Lake.
2055
Comment
CHSC61618
Lupinus arbustus
Arthur C. Barrett
1915-6-19
30
Lassen
Near Laufman Ranger Station.
1447
Comment
UC619268
Lupinus arbustus
J. and H. W. Grinnell
1938-6-13
1100
Lassen
Sage flat near Ravensdale; Sage Flat near Ravensdale
1554
Comment
SEINET10484649
Lupinus arbustus subsp. calcaratus
Mary Susan Taylor
1982-7-27
Taylor 5051
Lassen
T24n,r17e,sec.7 sw 1/4 sw 1/4. Constantia quad. Crystal peak area, diamond Mountains, ca 6 air miles sw of doyle. With haplopappus bloomeri, ceanothus Velutinus, wyethia mollis
2377
Comment
POM252845
Lupinus arbustus subsp. silvicola
A. A. Heller
1938-6-4
15142
Lassen
In open places near Fredonyer Pass.
1707
Comment
UCD55156
Lupinus argenteus
Ellen Dean
2006-5-15
3044
Lassen
E of town of Susanville. Along C.R. A27 (Center Rd.) Grounds of California Correctional Facility.
1254
Comment
CAS-BOT-BC208731
Lupinus argenteus var. heteranthus
M. S. Taylor
1982-6-12
4653
Lassen
Doyle, ca. 0.5 mi E of Hwy 395
Comment
CAS-BOT-BC208748
Lupinus argenteus var. heteranthus
Alice Eastwood; John Thomas Howell
1940-6-16
8334
Lassen
Near Susanville.
Comment
CAS-BOT-BC208755
Lupinus argenteus var. heteranthus
W. W. Eggleston
1927-7-14
21511
Lassen
Willow Creek, near Hayden Hill, Modoc Forest
1500
Comment
CAS-BOT-BC208759
Lupinus argenteus var. heteranthus
Charles Piper Smith
1947-5-23
47349
Lassen
Susanville, 1.4 miles west, Highway 36
Comment
CAS-BOT-BC208761
Lupinus argenteus var. heteranthus
Charles Piper Smith
1947-6-13
47443
Lassen
Highway 299, Nubieber, 6.6 miles west.
Comment
CAS-BOT-BC208763
Lupinus argenteus var. heteranthus
Charles Piper Smith
1947-5-23
47353
Lassen
Johstonville, 1 mile south, Highway 395
Comment
CHSC5056
Lupinus argenteus var. heteranthus
L. B. Barlow
1967-6-24
26
Lassen
3 mi. east of Eagle Lake Biological Station on road to Murrer's Upper Meadow.
1554
Comment
JEPS107302
Lupinus argenteus var. heteranthus
Lowell Ahart, John Dittes
2005-6-1
11873
Lassen
On the east side of the poor dirt road, about 1/2 mile west of Scott Road, Long Valley, about 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.8 miles (air) northwest of Hallelujah Junction
1448
Comment
SBBG30558
Lupinus argenteus var. heteranthus
D. Myrick
1968-6-19
1960
Lassen
Hwy 395, 23 mi S of Alturas
1524
Comment
SEINET10774227
Lupinus argenteus var. heteranthus
Lowell Ahart, John Dittes
2010-7-31
Ahart 16977
Lassen
T38N, R10E, center of north 1/2 Section 22. Stems from a plant 2 1/2 feet tall, on dry bare soil, about 100 yards northeast of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin.
1521
Comment
UC1776671
Lupinus argenteus var. heteranthus
G. Schoolcraft
1993-6-10
2296
Lassen
Along Clark's Valley Road w. of Clark's Valley Ranch
1859
Comment
UCD106809
Lupinus argenteus var. heteranthus
R. N. Raynor
1939-6-3
s.n.
Lassen
Susanville.
Comment
UCD106820
Lupinus argenteus var. heteranthus
Leo Whitney
1934-7-17
s.n.
Lassen
Lassen N. F.
Comment
SEINET5327987
Lupinus argenteus var. heteranthus
J. Young
1982-6-9
s.n.
Lassen
M. Meyer's Ranch, Adin, CA
1372
Comment
POM253163
Lupinus caudatus
A. A. Heller
1938-6-23
15203
Lassen
Along U.S. Highway 395 just outside of Johnstonville.
Comment
SD43491
Lupinus caudatus
Philip A. Munz
1947-5-20
11888
Lassen
Milford
1264
Comment
RSA59517
Lupinus caudatus
E. K. Balls
1950-5-21
14824
Lassen
Standish, 7 miles from junction of Highway 36 and 395.
1250
Comment
JEPS126477
Lupinus holosericeus
Lillie Pennington, Jillian Pastick, Rachael Payer, Andrea Stuemsky
2015-7-28
CA 350 -068
Lassen
Take 395 to Ravendale. Follow county road 527 to Buckhorn Byway. Follow for approximately 15 miles then turn right at the south end of Pilgrim Lake. Drive past two gates and through Painter's Creek. About 500 meters out of the creek on Painter's Flat.
Comment
SEINET10488723
Lupinus lepidus
Williams
1983-7-31
Williams 126
Lassen
Roadside near janesville. Sandy soil with sagebrush and bitterbrush. Great Abundance
1280
Comment
CHSC117063
Lupinus lepidus var. confertus
Mary De Decker
1955-8-25
262
Lassen
Honey Lake: Highway 395
Comment
CHSC66243
Lupinus lepidus var. sellulus
Vernon H. Oswald; Lowell Ahart
1996-6-24
7867
Lassen
Modoc Plateau. Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake.
1633
Comment
NY747330
Lupinus lepidus var. utahensis
A. Tiehm
1984-6-25
8823
Lassen
Rodeo Flat, 2.7 road miles west of the state line on Buckhorn road from Ravendale to highway 81
1829
Comment
RSA715929
Lupinus meionanthus
L. P. Janeway, B. Castro
2005-7-10
8477
Lassen
Northern High Sierra Nevada. Crest of the Diamond Mountains overlooking Janesville and the north end of Honey Lake; 0.2 km north of Rd. 28N01 and 0.6 km east of junction of Janesville Grade Rd (Rd 208 and 28N02) and Road 28N01.
1859
Comment
NY747435
Lupinus microcarpus
A. A. Heller
1938-6-23
15219
Lassen
Along the highway (U.S. #395) between Termo and Madeline
1524
Comment
JEPS126528
Lupinus microcarpus var. microcarpus
Lowell Ahart, John Dittes
2016-6-7
21018
Lassen
On the west edge of State Highway 299, Big Valley Mountains, 0.4 mile (air) northeast of Big Valley Summit, 5.0 miles (air) southwest of Bieber.
Comment
CDA27535
Lupinus microcarpus var. microcarpus
T. C. Fuller
1963-6-1
10623
Lassen
West side of road to Susanville, 2.2 miles south of Pittville.
0
Comment
JEPS103164
Lupinus nevadensis
Beth Corbin
2002-4-11
1056
Lassen
Skedaddle Ranch Rd, W of Skedaddle Ck, .5 mi NE of Spencer Ck Rd.
1310
Comment
NY747489
Lupinus nevadensis
G. Schoolcraft
1986-4-28
1526
Lassen
Lower W. slopes of Fort Sage Mountains
1433
Comment
SEINET10490190
Lupinus polyphyllus subsp. superbus
Duane Isely, I. Isely
1971-7-12
Isely 11382
Lassen
Bogard campground, lassen national forest. Ca 2 mi s of state hwy. 44. 30 Mi Nw of susanville. Abundant, corolla violet, standard reflexed 45 degrees; Basal leaves moderately long-petioled.
Comment
UC82153
Lupinus polyphyllus var. burkei
T. S. Brandegee
1892-7-28
Lassen
Janesville
Comment
SEINET10490228
Lupinus sellulus var. artulus
Katherine L. Morris
1973-5-25
Morris 233
Lassen
Collected 7.6 mi nw of jct of hwy 36 and 44 on hwy 44, in an area of yellow Pine and incense cedar. Very moist area.
Comment
RSA32777
Lupinus subvexus var. subvexus
A. A. Heller
1938-6-23
15219
Lassen
Along U. S. H ighway 395 between Termo and Madeline.
1524
Comment
POM110680
Luzula comosa
Marcus E. Jones
1897-7-2
s.n.
Lassen
Near Prattville at Clear Creek.
1524
Comment
CHSC113060
Lythrum hyssopifolia
Lowell Ahart; John Dittes
2013-7-23
18896
Lassen
Along the south margin of the levee road, about 100 yards east of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
CHSC66727
Lythrum portula
Vernon H. Oswald; Lowell Ahart
1996-8-1
8104
Lassen
Mountain Meadows Reservoir of Westwood. On shore of reservoir NE of Indian Ole Dam.
1539
Comment
SEINET10872918
Machaerocarpus californicus
Mary Susan Taylor
1982-6-12
Taylor 4647
Lassen
T29N R10E ne/nw sec 13. Westwood quad. Aquatic in still pond on n side of West Fork of Susan River, s side of Hwy 36 at jct w/ Willow Cr Rd, 8 mi w Susanville.
Comment
SFV7754
Madia citrigracilis
T. Gordon, K. Kimbrough
1975-8-15
1214
Lassen
16 miles south of Adin.
1402
Comment
UC579789
Madia citriodora
David D. Keck and J. Clausen
1935-6-25
3761
Lassen
just w Susanville
1310
Comment
CAS-BOT-BC343695
Madia elegans
Marcus E. Jones
1897-6-26
s.n.
Lassen
Susanville. Perkin's Ranch
1463
Comment
CAS-BOT-BC343699
Madia elegans
Clare B. Hardham
1969-8-28
17425
Lassen
Slope west of Janesville
Comment
SBBG95823
Madia elegans
G. K. Helmkamp
1990-10-4
M- 9
Lassen
S of Susanville, N of Milford Pass, Plumas Nat Forest
1463
Comment
SEINET11601338
Madia elegans
J. A. Young
1983-8-4
s.n.
Lassen
Janesville
Comment
UCR67469
Madia elegans
George K. Helmkamp
1990-10-4
M 11
Lassen
Eastern Sierra Nevada Mountains, Plumas National Forest, south of Susanville, north of Milford Pass
1463
Comment
CAS-BOT-BC343696
Madia elegans
John Thomas Howell
1974-7-8
50458
Lassen
Just north of Milford
Comment
RSA252466
Madia elegans subsp. densifolia
R. F. Thorne, C. W. Tilforth
1969-9-6
39262
Lassen
C. 0.7 mi. SE of Milford, along Hwy. 395 (W. of Honey Lake).
1280
Comment
JEPS88219
Madia exigua
Vernon H. Oswald and Lowell Ahart
1996-6-17
7806
Lassen
n side of Bizz Johnson Trail between Devils Corral Trailhead and 6.0 milepost (trailhead located off Hwy 36 ca 7 mi w of Susanville); Modoc Plateau
1420
Comment
UC33229
Madia exigua
M. S. Baker and F. Nutting
1894-7-2
Lassen
Dixie Mts.
Comment
UC469045
Madia exigua
Franklin P. Nutting
Lassen
Dixie Valley
Comment
CAS-BOT-BC334692
Madia glomerata
John Thomas Howell
1973-7-10
49783
Lassen
Fredonyer Pass, Sierra Nevada
1737
Comment
CAS-BOT-BC508541
Maianthemum racemosum subsp. amplexicaule
Alice Eastwood
1912-8-22
1787
Lassen
Trail from Morgans Springs to Sulphur Works
Comment
CHSC80607
Malacothrix glabrata
V. H. Oswald; B. Corbin, K. Earll, G. Schoolcraft
2001-6-2
10038
Lassen
North-northeast of Doyle on a dirt road bordering the east side of Turtle Mountain.
1828
Comment
UC585134
Malacothrix glabrata
E. B. Babcock, G. L. Stebbins Jr.
1936-6-7
1767
Lassen
ridge above Red Rock
1524
Comment
CAS-BOT-BC348029
Malacothrix torreyi
G. Schoolcraft
1989-5-31
1885
Lassen
About 4 mi. n. Wendel Rd. along Skedaddle Ranch Rd.
Comment
CAS-BOT-BC348030
Malacothrix torreyi
Arnold Tiehm
1978-5-15
4159
Lassen
.4 mile west of the Nevada stateline on highway 81 from Gerlach to Cedarville
Comment
CHSC113089
Malva neglecta
Lowell Ahart; John Dittes
2013-7-22
18877
Lassen
East of a drainage filled with dirt from construction of a pond, 40 yards south of the man made pond, about 110 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
UC1192280
Malvella leprosa
Verne Grant and Irving Schneider
1947-9-6
8386
Lassen
hot springs ca. 1 mi. w. Wendel
Comment
UC1594528
Marsilea oligospora
Vernon H. Oswald and Lowell Ahart
1992-7-16
5126
Lassen
between Old Station and Susanville (Bridge Creek Spring Rd. (County Rd. 112, Forest Rd. 31N06), 1 mi e of Willow Spring Rd. (Forest Rd. 31N56))
1745
Comment
CHSC65287
Marsilea vestita subsp. vestita
Vernon H. Oswald; Lowell Ahart
1995-8-14
7201
Lassen
Modoc Plateau. Horse Lake Rd. (Lassen 536) at BLM reservoir 11.3 mi W of Hwy. 395, N of Susanville.
1737
Comment
JEPS97378
Marsilea vestita subsp. vestita
Vernon H. Oswald and Lowell Ahart
1995-8-14
7201
Lassen
N of Susanville (Horse Lake Rd (Lassen 536) at a BLM reservoir, 11.3 mi W of Hwy 395); Modoc Plateau
1737
Comment
CHSC112767
Matricaria occidentalis
Lowell Ahart; John Dittes
2013-7-22
18863
Lassen
Drainage filled with dirt from construction of a pond, 30 yards south of the man made pond, about 120 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
CHSC71342
Melica fugax
Vernon H. Oswald
1998-6-22
9232
Lassen
Champs Flat Rd. (A-21) 1.8 mi north of Hwy. 44, ca. 18 air mi north of Westwood.
1749
Comment
UCD37478
Melica fugax
Beecher Crampton
1960-6-18
5726
Lassen
Lassen County, southern Warner Mountains, 1.25 miles north of Blue lake, in vicinity of Blue Lake Ranch.
1981
Comment
CHSC80722
Melica stricta
V. H. Oswald; B. Corbin, K. Earll, G. Schoolcraft
2001-6-2
10037
Lassen
Northeast of Doyle in the Fort Sage Mtns, trail to top of mountain from the end of a 4WD road.
1828
Comment
CHSC25305
Mentzelia albicaulis
Pauleen Broyles
1977-6-1
152
Lassen
Skedaddle Ranch Road at turn-off of South Fork Reservoir road ca 8 km ne of Herlong.
1660
Comment
CHSC7655
Mentzelia albicaulis
Beverley J. Wise
1969-5-18
66
Lassen
18.2 mi. East of Susanville on Las. Co. Rd. 216 off Las. Co. Rd. 215.
1524
Comment
NY694984
Mentzelia albicaulis
N. H. Holmgren
1980-7-4
9507
Lassen
Observation Peak, south side of the mountain, 18 km (11 mi) air distance east of Ravendale
1890
Comment
UC1609443
Mentzelia albicaulis
Vernon H. Oswald and Lowell Ahart
1993-6-14
5536
Lassen
ca 2.0 m ENE Spaulding Tract Rd. (Rd. 518,33N89) (Eagle Lake Rd. (Lassen Al) at Sandy Beach on the W shore of Eagle Lake); Eagle Lake
1566
Comment
POM83650
Mentzelia congesta
Marcus E. Jones
1897-6-18
s.n.
Lassen
Chat.
1524
Comment
RSA715551
Mentzelia congesta
L. Ahart, John Dittes
2005-6-1
11887
Lassen
On the north side of Scott Road, Long Valley, about 4.25 miles (air) north of the intersection of Scott Road and Highway 70, 5.5 miles (air) northwest of Hallelujah Junction.
1434
Comment
CHSC4437
Mentzelia dispersa
K. R. Stern
1967-6-30
2448
Lassen
West Central side of Eagle Lake.
1554
Comment
CHSC68893
Mentzelia dispersa
Vernon Oswald; Lowell Ahart
1997-6-24
8603
Lassen
South of Susanville on the north side of Diamond Mtn. at a stream on Forest Rd. 29N43, 3.5 miles east of Gold Run Rd. (29N10).
1655
Comment
HSC15839
Mentzelia laevicaulis
Jim Vaughn
1956-8-17
Lassen
Hwy. 36, 1 mi. W of Susanville.
Comment
CAS-BOT-BC170841
Mentzelia veatchiana
John Thomas Howell; Alice Eastwood
1940-6-11
8002
Lassen
Big Valley
Comment
JEPS20798
Menyanthes trifoliata
W. L. Jepson
1910-6-10
4111
Lassen
East Fork of King Creek toward Turn Lakes (Lassen Peak Region); , East Fork King Creek
2164
Comment
CHSC7717
Mertensia longiflora
Beverley J. Wise
1969-5-3
3
Lassen
12 mi. N.E. of Susanville on Lass. Co. Rd. 216 off Las. Co. Rd. 215. On bank of Willow Creek.
1554
Comment
CHSC61179
Micranthes nidifica
Vernon H. Oswald; Lowell Ahart
1993-5-12
5388
Lassen
Hwy. 44 between Poison Lake and A21 (to Westwood), 1.6 mi SE of Pittsville Rd. Meadow on the S side of the road.
1719
Comment
SD8330
Micranthes odontoloma
Mrs. R. M. Austin
1879-1
Lassen
Lassen Peak
Comment Read comments Apr 29 2013
CHSC96720
Micranthes oregana
Gordon Leppig; T. LaBanca, L. Arguello
1997-6-28
506
Lassen
Modoc National Forest, Blue Lake Ranch. Peatland in large meadow complex.
1970
Comment
CAS-BOT-BC429185
Micranthes oregana
Parkison
1916-7-21
27
Lassen
Lassen National Forest. Harvey R.S.
1676
Comment
NY539941
Micromonolepis pusilla
A. Tiehm
1986-5-12
10351
Lassen
1 road mile west of the state line on the dirt road from highway 395 to Smoke Creek, south side of Rush Creek
1341.1
Comment
OBI76931
Microseris laciniata
Anthony Baniaga
2011-7-9
434
Lassen
Lassen Natl forest. SW Pine Crk Valley. Pine Crk valley quad T31N R8E sec 10 NE of NE
1715
Comment
CAS-BOT-BC322657
Microseris laciniata
G. Schoolcraft
1993-6-1
2274
Lassen
Secret Creek area south of TulePatch Spring
1463
Comment
JEPS118157
Microseris laciniata subsp. laciniata
Dean W. Taylor
2009-5-21
20606
Lassen
Susanville; Susanville Peak, northerly flank along logging roads ca. 1.5 air miles E of Round Valley Reservoir
1706
Comment
JEPS88326
Microseris laciniata subsp. laciniata
Vernon H. Oswald and Lowell Ahart
1996-6-24
7843
Lassen
Papoose Meados located ca.0/5 mi E of Eagle Lake Road (A1) and 2.5 mi S of Eagle Lake, Modoc Plateau.
1633
Comment
CHSC89724
Microseris nutans
L. P. Janeway
2004-6-26
8152
Lassen
High Cascade Range. Halls Flat; about 0.3 km east of Road 33N13 3.5 km north of junction of Road 33N18.
1714
Comment
UC773918
Microseris nutans
L. R. Short
1936-6-1
S- 353
Lassen
Burgess Spring Experiment Range Lassen Forest
1859
Comment
CAS-BOT-BC349298
Microseris nutans
Clarence R. Quick
1961-6-21
61 -19
Lassen
Adjacent to Road 21, Blacks Mt. Experimental Forest, northeast of Lassen Peak
1798
Comment
CHSC29930
Microsteris gracilis
Robin L. Ondricek
1978-6-20
65
Lassen
Callatin Burn, 1.8 mi s of Five Corners.
2011
Comment Read comments Jan 31 2011
OBI48095
Microsteris gracilis
Rhonda Riggins
1989-4-27
1637
Lassen
Wash through volcanic boulder pavement, US 395, 8.4 mi N Litchfield, 26.6 mi S Ravendale
1311
Comment
RSA104221
Microsteris gracilis subsp. humilis
Verne Grant, Alva Grant
1956-5-18
9801
Lassen
4 miles S of Ravendale.
1280
Comment
UCR201716
Mimulus
Ken Osborne
2005-4-23
s.n.
Lassen
6 miles SE of Honey Lake, 1 mile west of Turtle Mountain
1276
Comment
JEPS107307
Mimulus arvensis
Lowell Ahart, John Dittes
2005-6-1
11900
Lassen
On the north side of Scott Road, east side of the railroad underpass, Long Valley, about 4 3/4 miles (air) north of the intersection of Scott Road and Highway 70, 6.2 miles (air) northwest of Hallelujah Junction
1459
Comment
UC1778584
Mimulus breviflorus
S. E. Schoenig
1998-7-5
98 -71
Lassen
Moist clayey soil. East side of Poison Lake, 50 meters W of Pitville Rd., 1.8 mi NW of Hwy 44. East of Railroad track and wet ditch.
1749
Comment
JEPS80678
Mimulus guttatus
L. R. Heckard and T. I. Chuang
1981-6-10
5530
Lassen
13 1/2 mi s Adin (along highway 139)
1463
Comment
HSC20753
Mimulus guttatus
M. T. Milligan
1964-7-16
130
Lassen
2 mi. W on the Silver Lake Rd., along Upper Susan River.
1829
Comment
SEINET10570320
Mimulus guttatus
Jeffrey Huber
1971-6-11
Huber 320
Lassen
3 mi e of westwood, on calif hwy 36, in volcanic soils, in pinus jeffreyi.
1608
Comment
UC125195
Mimulus layneae
Baker and Nutting
Lassen
Big Valley
Comment
JEPS94552
Mimulus lewisii
Vernon Oswald and Lowell Ahart
1997-6-24
8616
Lassen
0.7 mi e of boundary of Lassen National Forest (5.4 mi e of Gold Run Road (29N10), s of Susanville, on n side of Diamond Mountain along Forest Road 29N43); Diamond Mountain along Forest Road 29N43
1889
Comment
JEPS94563
Mimulus mephiticus
Vernon Oswald and Lowell Ahart
1997-6-24
8597
Lassen
on Forest Rd. 29N43 1.2 mi e Gold Run Rd. (29N10) (n side of mt., s of Susanville); Diamond Mtn.
1685
Comment
JEPS10491
Mimulus microphyllus
Jos. Grinnell
1928-6-16
Lassen
Eagle Lake
1584
Comment
SEINET10570251
Mimulus nanus
David B. Dunn, Billy Joe Cox
1971-6-2
Dunn 17798
Lassen
6 mi n of halleluja hct on us hwy 395, in artemisia tridentata, pinyon pine, Jeffery pine along high ridge and in sandy wash.
1402
Comment
SEINET10863348
Mimulus nanus
Paul Gallian, David B. Dunn
1971-6-2
Gallian 518
Lassen
6 mi n of hallelujah jct on us hwy 395 in artemisia tridentata, pinyon pine, Jeffery pine along high ridge and in sandy wash.
1402
Comment
JEPS63626
Mimulus nanus var. jepsonii
G. S. Crew and C. S. Robinson
1927-6-25
23
Lassen
near Wetwood Junction; Lassen Forest, Norval Flat
1747
Comment
RSA715546
Mimulus nanus var. mephiticus
L. Ahart, John Dittes
2005-6-1
11869
Lassen
On the west side of the poor dirt road, about 1/2 mile west of Scott Road, Long Valley, About 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.9 miles (air) northwest of Hallelujah Junction.
1449
Comment
UC27047
Mimulus nanus var. mephiticus
M. S. Baker and Frank Nutting
1894-7-12
Lassen
Pine Creek
Comment
RSA422232
Mimulus nanus var. nanus
Christopher Davidson
1975-6-7
2764
Lassen
1 mi E of Beckwourth Pass on Hwy 70.
1524
Comment
UC886329
Mimulus pulsiferae
C. L. Hitchcock
1940-5-26
6611
Lassen
lava beds ca 12 mi n Fall River Mills (Shasta Co.); Fall River
1371
Comment
RSA536391
Mimulus pygmaeus
Beth Corbin
1991-6-10
621
Lassen
Pine Creek at Little Harvey Valley 8 miles NE of USFS Bogard Work Center.
1700
Comment
RSA536395
Mimulus pygmaeus
Beth Corbin, Kim Earll, Steve Klukkert
1991-6-20
629
Lassen
Gray's Valley, 4.5 miles N of USFS Bogard Work Center.
1715
Comment
RSA536396
Mimulus pygmaeus
Beth Corbin
1991-6-26
633
Lassen
Big Merrill Flat. 14 miles NW of Susanville.
1790
Comment
RSA536402
Mimulus suksdorfii
Beth Corbin
1991-6-3
620
Lassen
SW Harvey Valley, ca. 200 m NE of Whitehorse Well, ca. 6 mi N if USFS Bogart Work center.
1700
Comment
UC1736253
Mimulus suksdorfii
Dean W. Taylor
1992-5-7
12547
Lassen
Eagle Lake Region, Pine Creek, on Forest Road 33N07 ca. 0.8 mile S of Byrgess Flat,
1767
Comment
JEPS95713
Monardella odoratissima subsp. glauca
Vernon H. Oswald and L. Ahart
1995-8-14
7192
Lassen
T33N R14E NE1/4 Sec. 10, 5500 ft, Modoc Plateau, Sagebrush Scrub. Horse Lake Rd. (Lassen 536) 2.5 mi W of Hwy. 395 at a small intermittent stream, N of Susanville
1676
Comment
SEINET3152591
Monardella odoratissima subsp. glauca
L. S. Rose
1940-6-15
40593
Lassen
10 mi. N of Susanville, Round Valley.
1524
Comment
UC506902
Monardella odoratissima subsp. glauca
George A. Fischer, Irwin H. Johnson
1933-7-21
F 279
Lassen
Stringer Lassen Forest
1696
Comment
CHSC25160
Monardella odoratissima subsp. pallida
L. B. Barlow
1967-7-1
61
Lassen
5 mi. north of Eagle Lake Marina, west central shore Eagle Lake, Eagle Lake Road.
1554
Comment
CHSC29865
Monardella odoratissima subsp. pallida
Robin L. Ondricek
1978-8-9
122
Lassen
1977 Burn, .1 mi w of intersection with road which passes Colman Lake. [Sanders 2010 annotation: Monardella odoratissima Benth. ssp. pallida X ssp. glauca.]
1889
Comment
UC124967
Monardella odoratissima subsp. pallida
T. S. Brandegee
1892-6-30
Lassen
Susanville
Comment
UC25488
Monardella odoratissima subsp. pallida
M. S. Baker and Frank Nutting
1894-7-28
Lassen
mts. s Eagle Lake
Comment
CHSC116086
Monolepis nuttalliana
Lowell Ahart; John Dittes
2015-7-13
20311
Lassen
Along levee road, about 300 yards south of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
CHSC63392
Monolepis nuttalliana
Vernon H. Oswald; Beth Corbin, Michael Dolan
1994-6-18
6315
Lassen
Cold Springs near Clarks Valley Rd. (Lassen 510) ca. 11 mi E of Madeline.
1871
Comment
CAS-BOT-BC444695
Montia chamissoi
Louella Bass
1973-6-17
123
Lassen
Elysian Valley.
1325
Comment
JEPS87431
Montia chamissoi
Vernon H. Oswald and Lowell Ahart
1993-6-14
5509
Lassen
Lassen A21 (32N02) 7 air mi w Eagle Lake (5.3 mi e of Lassen 105 (32N28Y), near Summit Camp)
1889
Comment
UC1136741
Montia chamissoi
A. Simontacchi
1940-5-21
763
Lassen
4.1 mi sse of Blacks Mountain (Lassen National Forest); Lassen National Forest
1737
Comment
UC1533152
Montia chamissoi
G. Schoolcraft
1986-5-20
1578
Lassen
about 4 mi n of Horse Lake
1630
Comment
UC1567410
Montia chamissoi
G. Schoolcraft
1989-7-18
1983
Lassen
near Buck's Spring (s of Clark's Valley Road)
1874
Comment
CAS-BOT-BC444696
Montia chamissoi
Louella Bass
1977-6-12
77 -3
Lassen
Elysian Valley
1325
Comment
CAS-BOT-BC444846
Montia fontana
G. Schoolcraft
1995-5-16
2478
Lassen
2 mi. east of Bull Flat.
1615
Comment
CHSC54192
Montia linearis
Vernon H. Oswald
1991-5-28
4619
Lassen
Wayman Barn at the west end of Hunt Rd, Ash Creek Wildlife Area, ca. 5 miles northeast of Bieber. Locally abundant on the bed of a drying vernal pool on an undulating sagebrush flat east of the barn.
1264
Comment
SBBG69755
Montia linearis
E. Rockwell
-Jun-1925
782
Lassen
near Honey Lake
1219
Comment
HSC10386
Muhlenbergia asperifolia
M. T. Milligan
1964-8-6
201
Lassen
Eagle Lake, near shore at Eagle Lake General Store.
1677
Comment
SEINET7297179
Muhlenbergia asperifolia
John Thomas Howell, Gordon H. True
1973-1
50147
Lassen
Roadside in Mountain Meadows east of Westwood
1554
Comment
UC1137155
Muhlenbergia asperifolia
August L. Hormay
1932-8-12
Lassen
se edge of lake Lassen National Forest, Eagle Lake
Comment
UC589857
Muhlenbergia asperifolia
H. S. Yates
1936-8-11
6072
Lassen
Baxter Creek Susanville Quadrangle
1280
Comment
UC60840
Muhlenbergia filiformis
M. S. Baker and Frank Nutting
1894-7-9
Lassen
Pine Creek
Comment
CAS-BOT-BC275333
Muhlenbergia jonesii
John R. Reeder; Charlotte G. Reeder
1973-7-1
6240
Lassen
Ca. 25 miles NW of Susanville along State Highway 44 in Lassen National Forest
1767
Comment
RSA256323
Muhlenbergia jonesii
J. R. Reeder, C. G. Reeder
1973-6-5
6238
Lassen
Vicinity of Silver Lake, 22 miles NW of Susanville along Hwy 44
1768
Comment
CAS-BOT-BC275082
Muhlenbergia richardsonis
Malcom A. Nobs; S. Galen Smith
1949-7-21
1060
Lassen
4 miles N of Madeline
Comment
CHSC58862
Muhlenbergia richardsonis
Vernon H. Oswald; Lowell Ahart
1992-7-16
5105
Lassen
Long Lake on the S side of Hwy. 44 between Old Station and Susanville, 1.2 mi SE of County Rd. A21. On the margin of the lake.
1745
Comment
SJSU4296
Muhlenbergia richardsonis
J. W. Tilden
1960-6-27
1511
Lassen
outskirts of Westwood, foot of Moonlight Rd
1524
Comment
UC1132396
Muhlenbergia richardsonis
Robert W. Gardner
1939-7-10
G- 35
Lassen
Grass Valley Halls Flat Quadrangle
Comment
UC506980
Muhlenbergia richardsonis
George A. Fischer and Irwin H. Johnson
1933-7-12
F 224
Lassen
Stringer Mdw. Lassen National Forest
1722
Comment
UCD39732
Muhlenbergia richardsonis
Beecher Crampton
1954-7-6
2073
Lassen
17 miles south of Ravendale, along US highway 395.
1524
Comment
UCD86900
Muhlenbergia richardsonis
Beecher Crampton
1954-7-6
2073
Lassen
17 miles south of Ravendale, along US highway 395.
1524
Comment
UCD86955
Muhlenbergia richardsonis
Malcolm A. Nobs; S. Galen Smith
1949-7-21
1060
Lassen
4 miles N of Madeline.
Comment
CAS-BOT-BC515651
Muilla transmontana
G. Schoolcraft
1989-5-3
1863
Lassen
NW corner of Secret Valley near Karlo
Comment
CAS-BOT-BC515653
Muilla transmontana
John Thomas Howell; Gordon H. True; Margaret Williams
1973-5-12
49163
Lassen
Elysian Valley northwest of Jamesville
1051
Comment
CAS-BOT-BC392249
Myosurus
John Thomas Howell
1976-7-20
52033
Lassen
About 5 miles west of Fredonyer Pass near confluence of Susan River and Willard Creek
1432
Comment
UCD55284
Myosurus apetalus
Ellen Dean; Gary Schoolcraft
2006-5-16
3103
Lassen
East of town of Susanville, along County Road A27 (Center Road). Private land north of California Correctional Facility owned by Virginia Johnston, to be purchased by state for expansion of alfalfa fields.
1244
Comment
UC1608993
Myosurus apetalus
Vernon H. Oswald and Lowell Ahart
1993-5-12
5392
Lassen
0.6 mi e Shasta County Line (n side of Hwy 44, between Old Station and Poison Lake)
1645
Comment
CHSC68868
Myosurus apetalus var. borealis
Vernon Oswald; Lowell Ahart
1997-6-24
8651
Lassen
South of Susanville just south of the small pond on the crest of Diamond Mtn., about midway between Aspen Flat and Red Rock Lookout. In a meadow.
2249
Comment
CHSC68760
Myosurus minimus
Vernon H. Oswald; Lowell Ahart
1997-5-27
8518
Lassen
Williams Reservoir on Forest Route 38N04 (between Hwy. 139 near Willow Creek Guard Station and Coyote Flat), 2.6 mi northeast of Hwy.139.
1682
Comment
NY492693
Myosurus minimus
P. H. Raven
1958-6-17
13285
Lassen
Along U. S. Highway 395, 1.9 miles south of Ravendale
Comment
RSA0035919
Myosurus minimus
Lowell A. Ahart, John Dittes
2008-6-20
14940
Lassen
About 100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
1263
Comment
UCR153449
Myriophyllum sibiricum
R. F. Thorne, C. W. Tilforth
1969-9-5
39132
Lassen
Said Valley Reservoir, Said Valley Reservoir: Near junction of Grasshopper Road and Highway 139
1646
Comment
RSA0043136
Nama aretioides var. californica
Christopher Davidson
1975-6-7
2760
Lassen
1 mile E of Beckwourth Pass on Hwy 70.
1524
Comment
UCR183191
Nama aretioides var. multiflora
Jim Andre, G. L. Clifton
1993-5-28
7712
Lassen
Along Hwy 395 c. 25 mi. NE of Susanville at Viewland exit, NE of Shaffer Mtn
1349
Comment
CHSC7683
Nama demissa
Berverly J. Wise
1969-5-18
48
Lassen
7.7 mi. E. of Susanville on Co. Rd. 215 on the south side of the road.
1341
Comment
CHSC48463
Nama densa var. densa
Vernon Oswald
1986-5-28
2057
Lassen
Rd. 201 on the w side of Eagle Lake, 28.7 mi n of Hwy 36, 6.8 mi sw of Hwy 139
1584
Comment
SEINET7878178
Nama lobbii
Annetta Carter
1946-1
s.n.
Lassen
Altitude ca. 5500 feet; crest of ridge ten miles northeast of Susanville, Lassen County.
1676
Comment
CAS-BOT-BC60340
Nasturtium officinale
D. L. Stites
1967-6-24
29
Lassen
Collected ca. 3.5 miles southeast ELBS Upper Murrer Meadow.
1524
Comment
CHSC4873
Navarretia breweri
R. Carter
1967-6-23
543
Lassen
Ca. 5 yds. off N side of road.
Comment
CHSC64883
Navarretia breweri
Vernon H. Oswald; Lowell Ahart
1995-6-19
6885
Lassen
Modoc Plateau. Between Litchfield and Ravendale on Smoke Creek Ranch Rd., 0.9 mi e of Hwy. 395, on the down-slope approaching Mud Flat.
1353
Comment
CHSC89734
Navarretia breweri
L. P. Janeway
2004-6-26
8143
Lassen
High Cascade Range. Halls Flat; about 0.3 km east of Road 33N13 3.5 km north of junction of Road 33N18.
1714
Comment
UC133863
Navarretia breweri
Frank Stephens
1894-7-10
Lassen
above Pete's Valley
1463
Comment
NY1012729
Navarretia breweri
G. Schoolcraft
1983-6-28
1034
Lassen
Eastern slopes of Amedee Mountains
1890
Comment
RSA136592
Navarretia breweri
David B. Dunn
1956-7-3
11921
Lassen
On Highway 395.
Comment
CHSC4887
Navarretia capillaris
Bill Wilson
1967-7-5
41
Lassen
Collected at Eagle Lake Biological Station. 10 mi. N of Susanville, outside laboratory building.
1584
Comment
RSA702598
Navarretia capillaris
L. P. Janeway
2004-6-26
8148
Lassen
High Cascade Range. Halls Flat; about 0.3 km east of Road 33N13; 3.5 km north of junction of Road 33N18.
1714
Comment
JEPS17719
Navarretia divaricata subsp. vividior
Rimo Bacigalupi with G. T. Robbins
1955-7-19
5372
Lassen
10.3 mi se Adin (along Ash Valley road between Adin and Madeline)
1524
Comment
CHSC99105
Navarretia intertexta
Lowell Ahart; John Dittes
2008-6-22
15028
Lassen
Along a small natural drainage, about 120 yards west of the road levee, in Big Valley, about 2.1 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 5.0 miles (air) northeast of Bieber.
1262
Comment
JEPS126569
Navarretia intertexta subsp. intertexta
Lowell Ahart, John Dittes
2016-6-7
20995
Lassen
On the west side of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley.
Comment
CHSC23861
Navarretia intertexta subsp. propinqua
A. W. Harvilik
1967-7-7
38
Lassen
Collected on hwy. 139 ca. 6 mi from Susanville.
1463
Comment
UC423667
Navarretia intertexta subsp. propinqua
David D. Keck
1930-7-23
952
Lassen
4 mi w Susanville; Sierra Nevada
1463
Comment
CHSC1253
Navarretia leptalea
1951-7-8
Lassen
Pit River.
1524
Comment
RSA67608
Navarretia leptalea
Verne Grant, Alva Grant
1950-7-13
8943
Lassen
Camp Fredonyer, on road from Westwood to Susanville
1524
Comment
CHSC54188
Navarretia leucocephala subsp. minima
Vernon H. Oswald
1991-5-28
4617
Lassen
Wayman Barn at the west end of Hunt Rd, Ash Creek Wildlife Area, ca. 5 miles northeast of Bieber. On the bed of vernal pools on a flat east of the barn.
1264
Comment
CHSC66253
Navarretia leucocephala subsp. minima
Vernon H. Oswald; Lowell Ahart
1996-6-24
7847
Lassen
Modoc Plateau. Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake. On the W side of the meadow just S of the cabins.
1633
Comment
CHSC89737
Navarretia leucocephala subsp. minima
L. P. Janeway
2004-6-26
8145
Lassen
High Cascade Range. Halls Flat; about 0.3 km east of Road 33N13 3.5 km north of junction of Road 33N18.
1714
Comment
POM312617
Navarretia leucocephala subsp. minima
Malcolm A. Nobs, S. Galen Smith
1949-5-29
756
Lassen
Nubieber on Great Northern Railway, Highway 299
Comment
UC1137584
Navarretia leucocephala subsp. minima
A. Simontacchi
1940-6-15
872
Lassen
6.4 mi wnw Cone Mtn.; Lassen National Forest, Halls Flat Quad.
1767
Comment
UC1228161
Navarretia leucocephala subsp. minima
Beecher Crampton
1960-6-20
5731
Lassen
0.5 mi s Black Mtn. exper. Sta. U.S.D.A. Forest Service (11 mi nw Bogard Ranger Sta); Lassen National Forest
1706
Comment
UC1143039
Navarretia linearifolia subsp. linearifolia
L. R. Short and Wm. Gansberg
1936-7-3
S- 472
Lassen
Burgess Spr. Exp. Range Lassen National Forest
1844
Comment
CHSC99497
Nemophila pedunculata
Lowell Ahart; John Dittes
2008-6-20
14918
Lassen
About 100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
1263
Comment
JEPS120810
Nemophila pedunculata
Lowell Ahart, John Dittes, Todd Sloat
2013-6-8
18724
Lassen
About 30 yards N of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley.
Comment
CHSC13791
Nicotiana attenuata
Anne Linda Brisk
1969-7-10
45
Lassen
1/4 mi N of ELBS.
1554
Comment
UC1037191
Nicotiana attenuata
Leo Whitney
1933-8-22
1500
Lassen
base of Harvey Mountain; Lassen National Forest
1889
Comment
HSC4506
Nitrophila occidentalis
Fred J. Kindel
1955-7-14
Lassen
Wendel
Comment
CDA18261
Nothocalais alpestris
G. D. Barbe
1974-8-2
1923
Lassen
Long Valley; Hallelujah Junction, northwest corner of jct of US Hwy 395 and Hwy 70.
1524
Comment
RSA0009448
Nuphar lutea subsp. polysepala
Marcus E. Jones
1897-6-24
s.n.
Lassen
10 to 15 miles west from Amedee.
1219
Comment
RSA0013779
Nuphar lutea subsp. polysepala
E. K. Balls
1950-5-19
14787
Lassen
15.5 mi. W of Madeline on rd. from Adin.
1631
Comment
CDA20352
Oenothera alyssoides var. villosa
D. Tillotson
1942-6-1
s.n.
Lassen
Modoc Plateau; Mud Flat Grade.
0
Comment
HSC16519
Oenothera californica
R. G. Means
1962-7-4
64
Lassen
10 mi. N of Doyle, Hwy. 395
1220
Comment
UC1562804
Oenothera elata subsp. hookeri
Barbara Ertter
1987-7-24
7304
Lassen
ca 3/4 mi ene Beckwourth Pass (at end of old crumbling paved rd)
1524
Comment
RSA8247
Oenothera flava
Elmer I. Applegate
1929-6-24
5881
Lassen
Big Valley south of Bieber
Comment
RSA0049672
Olsynium douglasii var. douglasii
Dean Wm. Taylor
2012-5-15
21194
Lassen
WindMill Flat vicinity; one mile north of the north end
1676
Comment
RSA0049669
Onopordum acanthium subsp. acanthium
Dean Wm. Taylor
2012-5-15
21197
Lassen
Windmill Flat vicinity; one mile north of the north end (watershed East Fork Juniper Creek, tributary to Pit River at Big Valley)
1676
Comment
CAS-BOT-BC350043
Oreostemma alpigenum var. andersonii
Alice Eastwood
1912-8-22
1845
Lassen
Foot of Lassen Butte, Lassen Butte Region
Comment
CHSC66716
Oreostemma alpigenum var. andersonii
Vernon H. Oswald; Lowell Ahart
1996-8-1
8121
Lassen
Forest Rd. 28N56 (D-Line) ca. 2 mi N of Dyer Mtn. Lookout, SSW of West-wood.
1737
Comment
JEPS109987
Oreostemma alpigenum var. andersonii
Dean W. Taylor
2007-6-14
20131
Lassen
Forest Rd. 28N56 (D-Line) ca. 2 mi N of Dyer Mtn. Lookout, SSW of Westwood
1801
Comment
CAS-BOT-BC350041
Oreostemma alpigenum var. andersonii
Hans Leschke
1959-8-3
1595
Lassen
Lassen Volcanic National Park. Grassy Swales
1935
Comment
CHSC10945
Orobanche corymbosa
K. D. Cox
1971-7-5
144
Lassen
Approx. 1/4 mi. NW of main campus L.F.S.
1554
Comment
CDA42001
Orobanche corymbosa
T. C. Fuller
1980-8-5
20313
Lassen
Along east side of Tuledad Road, 7.4 km. southeast of the campground on the east shore of Dodge Reservoir, northeast of Ravendale.
0
Comment
UC1136756
Orobanche corymbosa subsp. corymbosa
L. R. Short and J. Warren
1936-6-30
S- 465
Lassen
NW of Eagle Lake, Burgess Spring Experiment Range.
Comment
CAS-BOT-BC500324
Orobanche uniflora subsp. occidentalis
H. C. Cantelow
1941-5-22
s.n.
Lassen
Fredonyer Pass, 18.5 mi W of Susnville, Hwy 36
Comment
CHSC12936
Orthocarpus cuspidatus subsp. cryptanthus
K. R. Stern
1974-6-26
5870
Lassen
N margin of meadow on s side of Hwy. 44, 5.6 mi n of intersection with County Rd. A-21 to Westwood.
Comment
CHSC13631
Orthocarpus cuspidatus subsp. cryptanthus
M. S. Taylor
1974-7-13
307
Lassen
Ca. 15 ft w of Mahogany Lake, ca. 3 mi s of Eagle Lake Field Station, ca. 13 mi nw of Susanville.
1524
Comment
CHSC27677
Orthocarpus cuspidatus subsp. cryptanthus
Jerry Sndgrass
1978-6-28
5
Lassen
Lower Dry L., E of Eagle L.
1645
Comment
CHSC59821
Orthocarpus cuspidatus subsp. cryptanthus
Mary Meyer
1980-7-8
Lassen
1706
Comment
UC172657
Orthocarpus cuspidatus subsp. cryptanthus
Frank Stephens
July, 1894
Lassen
Bunch Grass Spring
Comment
POM44258
Orthocarpus hispidus
Marcus E. Jones
1897-6-19
s.n.
Lassen
Chat.
1616
Comment
RSA337231
Orthocarpus hispidus
Noel Holmgren, Patricia K. Holmgren
1980-7-3
9483
Lassen
US Highway 395, 7.4 km (4.6 mi) S of Ravendale.
1620
Comment
UCD39135
Orthocarpus luteus
Beecher Crampton
1964-6-26
7085
Lassen
35 miles n.w. Susanville, Gray's Valley, 3 miles north Bogard Ranger Station.
Comment
JEPS98391
Oryzopsis exigua
Vernon H. Oswald, G. Schoolcraft, M. Dolan, and B. Corbin
2000-6-18
9929
Lassen
E of Ravendale (E-NE of the lookout on Observation Peak)
2377
Comment
HSC69075
Osmorhiza occidentalis
Gary Schoolcraft
1980-7-29
342
Lassen
Widow Peak Area
1585
Comment
RSA616541
Oxytheca dendroidea
G. R. Ballmer
1993-7-31
s.n.
Lassen
Sandy flats along Fort Sage Road, NE of Doyle, SE of Honey Lake, 2-5 miles airline W of Nevada border
Comment
RSA78899
Oxytheca dendroidea
E. K. Balls, Percy C. Everett
1952-10-10
18140
Lassen
5.5 miles NE of Litchfield, Hwy 395, between Susanville and Alturas
1280
Comment
HSC42421
Packera eurycephala
Barbara Kelly
1977-8-8
548
Lassen
Ash Creek Campground
Comment
JEPS25526
Packera multilobata
Rimo Bacigalupi with Lincoln Constance
1959-6-16
7139
Lassen
beside U.S. Highway 395 one fourth mi s of junction of road to Smoke Creek
1341
Comment
CAS-BOT-BC317146
Packera streptanthifolia
G. Schoolcraft
1986-6-4
1600
Lassen
About 1 mile west of Nevada stateline.
1341
Comment
CAS-BOT-BC10386
Paeonia brownii
J. T. Howell
1955-7-19
30820
Lassen
East side of Beckwourth Pass
1493
Comment
RSA624912
Paeonia brownii
B. J. Cox, D. B. Dunn
1971-6-2
2604
Lassen
6 mi. N. of Hallelujah Jct. on U.S. Hwy 395 in Artemisia tridentata. Pinyon pine, Jeffery Pine along high ridge and in sandy wash.
1402
Comment
SEINET10537860
Paeonia brownii
Paul Gallian, David B. Dunn
1971-6-2
Gallian 503
Lassen
6 mi n of hallelujah hct on us hwy 395, in artemisia tridentata, pinyon pine, Jeffery pine along high ridge and in sandy wash.
1402
Comment
SEINET3133156
Panicum lanuginosum var. fasciculatum
R. W. Spellenberg
1965-7-15
1229
Lassen
Lassen Volcanic NP, Devil's Kitchen
Comment
CHSC77265
Pascopyrum smithii
G. Schoolcraft
1998-7-14
2760
Lassen
On flat NE. of Shaffer Mtn.
1356
Comment
CDA5489
Pastinaca sativa
T. C. Fuller
1959-7-7
2793
Lassen
North of Cornell Street, west of Foss Street, Susanville.
0
Comment
CDA5490
Pastinaca sativa
T. C. Fuller
1959-7-7
2793
Lassen
North of Cornell Street, west of Foss Street, Susanville.
0
Comment
UC79157
Pectocarya setosa
T. S. Brandegee
1892-6-22
Lassen
Honey Lake
Comment
CHSC68879
Pedicularis groenlandica
Vernon Oswald; Lowell Ahart
1997-6-24
8652
Lassen
South of Susanville just south of small pond on the crest of Diamond Mtn., about midway between Aspen Flat and Red Rock Lookout.
2249
Comment
CHSC5004
Pedicularis semibarbata
K. C. Newman
1967-7-14
80
Lassen
Collected near Silver Lake, along the road just past the picnic area in dry soil.
1828
Comment
HSC20946
Pedicularis semibarbata
H. E. Parks, S. T. Parks
Jun 1928
237
Lassen
Drakesbad, Mt. Lassen, E side
1524
Comment
UC1063371
Penstemon deustus
A. Simontacchi
1940-6-4
795
Lassen
7.1 mi sw Jacks Lake; Lassen National Forest, Halls Flat Quadrangle
Comment
HSC68837
Penstemon deustus
Gary Schoolcraft
1979-6-26
97
Lassen
Small peak N of Radeo Flat
1951
Comment
CHSC77237
Penstemon deustus var. pedicellatus
G. Schoolcraft
1998-7-8
2749
Lassen
E. of Camel Rock near Secret Valley area.
1463
Comment
JEPS28681
Penstemon deustus var. pedicellatus
George W. Gillett
1957-7-26
908
Lassen
e shore Butte Lake Lassen Volcanic National Park, e shore Butte Lake
1859
Comment
JEPS127712
Penstemon gairdneri
Alejandro Brambila, Michael Dolan
2016-7-20
CA 320 -167
Lassen
Railroad trail off 395 North of Tule Mountain. South end of loop. Population on Ridge to West.
Comment
JEPS11268
Penstemon gracilentus
Brown and Wieslander
1922-7-25
5
Lassen
Martin Sprs , Martin Sprs (Eagle Lake)
Comment
NY600700
Penstemon gracilentus
K. A. Vincent
1987-8-5
4498
Lassen
Sierra Nevada, Roop Mountain; along CA A1 at Eagle Lake Summit, ca. 7.6 miles north of junction CA 36, ca. 7 air miles northwest of Susanville
1932.4
Comment
JEPS11208
Penstemon neotericus
Brown and Wieslander
1922-7-23
9
Lassen
Martin Sprs , Martin Sprs (Eagle Lake)
Comment
POM195120
Penstemon neotericus
D. D. Keck
1930-7-23
957
Lassen
2 miles east of Westwood.
1494
Comment
NY627261
Penstemon neotericus
F. W. Pennell
1940-7-23
26248
Lassen
Route 36, 3 miles northwest of Westwood
1585.0
Comment
CAS-BOT-BC239221
Penstemon newberryi var. berryi
Clare B. Hardham
1969-8-28
17449
Lassen
West of Janesville
Comment
SEINET5323576
Penstemon procerus var. procerus
C. G. Gulling
1905-1
s.n.
Lassen
Big Meadows
Comment
CHSC118789
Penstemon roezlii
L. P. Janeway; B. Castro
2015-6-5
11757
Lassen
Great basin, Modoc Plateau. Along the road from the south end of Surprise Valley to Tuledad Canyon, 7.4 road-km south of Surprise Valley Road; 1.4 air-km northwest of Mahogany Mtn.
1731
Comment
CHSC37349
Penstemon roezlii
Jennifer Estep
1978-6-27
19
Lassen
Dry L., E of Eagle L.
1645
Comment
NY641735
Penstemon roezlii
K. A. Vincent
1986-6-14
4321
Lassen
Upper Long Valley; along east side of US 395, ca. 5.5 miles north of jct. US 70, ca. 13.2 road miles north of Bordertown and Nevada state line
1463.0
Comment
CDA41987
Penstemon roezlii
T. C. Fuller
1963-6-1
10633
Lassen
East side of road to Hall s Flat, 9.4 miles south of Pittville.
0
Comment
JEPS103216
Penstemon roezlii
G. Schoolcraft
1989-7-3
1947
Lassen
Diamond Mtns. on Diamond Peak
2346
Comment
RSA299199
Penstemon roezlii
J. T. Howell, Gordon H. True, Wayne Dakan
1974-7-30
50689
Lassen
South and southeast of Diamond Mtn.
2226
Comment
CAS-BOT-BC239500
Penstemon rydbergii var. oreocharis
John Thomas Howell
1934-7-7
12460
Lassen
Board Ranger Station
Comment
CAS-BOT-BC239504
Penstemon rydbergii var. oreocharis
Louella Bass
1973-6-6
EV 100
Lassen
Elysian Valley
1325
Comment
CAS-BOT-BC239507
Penstemon rydbergii var. oreocharis
John Thomas Howell
1934-7-7
12460
Lassen
Bogard Ranger Station
Comment
CHSC59826
Penstemon rydbergii var. oreocharis
Mary Meyer
1980-7-9
Lassen
In dry meadows 1 mi northwest of Horse Camp Spring.
1706
Comment
UC1137681
Penstemon rydbergii var. oreocharis
George A. Fischer and Irwin H. Johnson
1933-7-12
F 228
Lassen
Patterson Flat Lassen National Forest, Patterson Flat
1737
Comment
CHSC30557
Penstemon speciosus
Sori H. Shad
1970-6-25
14
Lassen
Found in Dean's Meadow, 6 miles south of E. L. B. S.
Comment
JEPS15475
Penstemon speciosus
Joseph and Hilda W. Grinnell
1938-6-13
1101 a
Lassen
on a sage flat near Ravensdale; near Ravensdale
1554
Comment
NY661031
Penstemon speciosus
J. T. Howell
1934-6-19
11882
Lassen
12 miles north of Susanville on road to Horse Lake
Comment
NY660811
Penstemon speciosus
D. W. McNeal
1983-6-5
2836
Lassen
Road bank beside Highway #395, 9.2 miles north of the Plumas Co. line.
Comment
NY660820
Penstemon speciosus
H. D. D. Ripley
1943-6-13
5672
Lassen
South of Constantia
1463.0
Comment
NY661042
Penstemon speciosus
P. A. Munz
1947-5-19
11877
Lassen
Highway 395, 3.5 miles south of Ravendale
1615.4
Comment
RSA121811
Penstemon speciosus
G. A. Fischer, Irwin H. Johnson
1933-7-12
F- 220
Lassen
Lassen Forest.
1707
Comment
RSA38458
Penstemon speciosus
Philip A. Munz
1947-5-19
11877
Lassen
Hwy 395, 3.5 miles S of Ravendale.
1616
Comment
UC1012214
Penstemon speciosus
Francis W. Pennell
1940-7-23
26254
Lassen
Route 395, 2 mi n of junction with Route #24 (ne of Plumas); ne of Plumas
1524
Comment
JEPS103201
Penstemon sudans
G. Schoolcraft
1990-7-2
2101
Lassen
top of Cold Spring Mountain
2130
Comment
RSA299501
Penstemon sudans
J. T. Howell
1977-6-22
s.n.
Lassen
West of Susanville, near the confluence of Willard Creek and Susan River
1433
Comment
UC1036207
Penstemon sudans
George W. Gillett
1953-7-13
274
Lassen
Highway 36 one mi e Fredonyer Pass; Lassen National Forest, e of Fredonyer Pass
1706
Comment
SEINET5323639
Penstemon sudans
J. T. Howell, Gordon H. True
1973-8-1
50153
Lassen
Gold Run Creek road south of Susanville, Diamond Range.
1585
Comment
CAS-BOT-BC140468
Peraphyllum ramosissimum
James Moffitt
1941-5-14
s.n.
Lassen
Near Gilman Springs, 6 miles ssw. of Karlo
1417
Comment
NY850110
Peraphyllum ramosissimum
G. Schoolcraft
1984-6-11
1207
Lassen
Hills east of Bull Flat
1585
Comment
JEPS107969
Perideridia bolanderi
Lowell Ahart, John Dittes
2005-6-1
11916
Lassen
Along a small wash, on the east side of a poor road, Long Valley, about 4 1/2 miles (air) north of the intersection of Scott Road and Highway 70, 6.0 miles (air) northwest of Hallelujah Junction
1425
Comment
POM82582
Perideridia bolanderi subsp. bolanderi
Marcus E. Jones
1897-6-21
s.n.
Lassen
Chat.
1616
Comment
UC1137777
Perideridia bolanderi subsp. bolanderi
George A. Fischer and Irwin H. Johnson
1933-7-12
F 210
Lassen
Grass Valley Lassen National Forest
1722
Comment
SEINET11153153
Perideridia bolanderi subsp. bolanderi
D. French
1968-6-3
2882
Lassen
N of Honey Lake, W side of Hwy 395, 7.4 miles NE of Litchfield.
Comment
SEINET11153899
Perideridia gairdneri subsp. borealis
M. S. Baker
July 31 (no year)
s.n.
Lassen
Silver Lake.
Comment
CAS-BOT-BC222762
Perideridia parishii
Clare B. Hardham
1971-8-22
18397 A
Lassen
Diamond Mountain
2133
Comment
CHSC13648
Persicaria amphibia
M. S. Taylor
1974-7-10
312
Lassen
Abundant in floating masses along w shore of Eagle Lake in vicinity of Grebe Nesting Area, ca. 13 mi nw of Susanville.
1524
Comment
CHSC6229
Persicaria amphibia
J. B. Kimsey
1946-6-24
Lassen
Pine Creek, Eagle Lake.
1584
Comment
CHSC6230
Persicaria amphibia
J. B. Kimsey
1946-6-24
Lassen
Pine Creek, Eagle Lake.
1584
Comment
OBI77201
Persicaria amphibia
Anthony Baniaga
2011-7-23
517
Lassen
Lassen NF. Poison Lake. Poison Lake quad T32N R7E sec 4
1707
Comment
CHSC64878
Phacelia adenophora
Vernon H. Oswald; Lowell Ahart
1995-6-19
6884
Lassen
Modoc Plateau. Between Litchfield and Ravendale on Smoke Creek Ranch Rd., 0.7 mi e of Hwy. 395.
1371
Comment
CHSC7682
Phacelia adenophora
Beverley J. Wise
1969-5-3
49
Lassen
6.1 mi. junction with Hwy 395 on Las. Co. Rd. 338.
1615
Comment
SEINET5759440
Phacelia adenophora
A. Tiehm, Margaret Williams, Jan Nachlinger
1988-1
11701
Lassen
South side of Shaffer Mountain, 3.4 road miles north of the Wendel road on HWY 395 from Susanville to Alturas, west of the highway.
1387
Comment
UC1226488
Phacelia adenophora
Arthur Cronquist and Arthur H. Holmgren
1959-6-17
8479
Lassen
along roadside 1 mi s Ravendale (40 mi ne of Susanville)
1615
Comment
UC1537547
Phacelia adenophora
Gordon H. True Jr.
1938-7-8
905
Lassen
near Termo
1371
Comment
UC579734
Phacelia adenophora
David D. Keck and J. Clausen
1935-6-24
3736
Lassen
2 mi s Ravendale
1464
Comment
RSA487940
Phacelia adenophora
Arnold Tiehm, Jan Nachlinger, Margaret J. Williams
1988-6-2
11701
Lassen
South side of Shaffer Mountain, 3.4 miles north of the Wendel road on Hwy 395 from Susanville to Alturas, west of the highway.
1387
Comment
RSA0009544
Phacelia bicolor
Marcus E. Jones
1897-6-22
s.n.
Lassen
10 miles south of Amedee. [Lassen or Plumas Co.]
1220
Comment
UC1069270
Phacelia bicolor var. bicolor
E. Sawyer
1935-6-27
233
Lassen
Long Valley Sierraville Quadrangle
Comment
CDA40418
Phacelia hastata
J. T. Howell
1934-7-8
12480
Lassen
Champ s Flat.
0
Comment
SD61076
Phacelia hastata
Darley F. Howe
1964-8-1
3913
Lassen
Modoc Natl. Forest. 4.8 mi. on Ridge above Harvey Creek.
2133
Comment
GMDRC6948
Phacelia hastata subsp. hastata
J. M. Andre, T. La Doux, Senna & Elias Andre
2013-7-12
31421
Lassen
along north side of Hwy 44 at south end of Grays Valley, along NF Rd# 33N02, north of Bogard Buttes, about 30 mi. west of Susanville.
1733
Comment
UC107564
Phacelia heterophylla subsp. virgata
T. S. Brandegee
1892-6-26
Lassen
Milford
Comment
CHSC4910
Phacelia humilis
A. E. Anderson
1967-6-23
5
Lassen
Around Eagle Lake Biological Station.
1554
Comment
CHSC63401
Phacelia humilis
Vernon H. Oswald; Beth Corbin, Michael Dolan
1994-6-18
6314
Lassen
Cold Springs near Clarks Valley Rd. (Lassen 510) ca. 11 mi E of Madeline.
1871
Comment
CHSC80207
Phacelia humilis
Jeanne Boze
1981-6-13
113
Lassen
On northeast slope of Gallatin Peak.
2011
Comment
SEINET5536709
Phacelia humilis
N. H. Holmgren, P. K. Holmgren
1978-6-11
8908
Lassen
Vicinity of spring at fork to Painters Flat on east side of Observation Peak, 28 km (17.4 miles) east of Ravendale and 22.5 km (14 miles) airline distance.
1680
Comment
UC1562814
Phacelia humilis
Barbara Ertter with Gary Schoolcraft
1987-6-16
7196
Lassen
saddle on e side Hot Springs Peak (ne side of Honey Lake); Skeedaddle Mountains
2194
Comment
UCD120530
Phacelia humilis var. humilis
Beecher Crampton
1960-6-18
5728
Lassen
N.E. part of county; southern Warner Mtns., vicinity Blue Lake Ranch.
Comment
CHSC5264
Phacelia inundata
J. B. Kimsey
1946-6-10
Lassen
Pelican Point, Eagle Lake.
1556
Comment
CHSC12454
Phacelia linearis
Robert W. Severin
1969-6-27
38
Lassen
E.L.B.S., 250 ft. n of Vesta Holt Hall.
Comment
CHSC59551
Phacelia linearis
Mary Meyer
1980-5-20
Lassen
Common along ridges above Secret Creek.
1432
Comment
CHSC71090
Phacelia linearis
Vernon H. Oswald; Lowell Ahart
1998-5-22
9106
Lassen
Road to ORV parking area in Fort Sage Mtns. 0.5 mi east of Fort Sage Rd., ca. 5 mi NNE of Doyle.
1371
Comment
CHSC92755
Phacelia linearis
L. P. Janeway
2005-7-4
8463
Lassen
High Cascade Range. Ridge top north above Long Valley; 0.4 km west of Road 34N41.
1752
Comment
JEPS2134
Phacelia linearis
J. Burtt Davy
Jun 17 1897-Jun 24 1897
Lassen
near Chat; Honey Lake Valley
Comment
UCD150392
Phacelia linearis
William Anderson
1963-6-2
s.n.
Lassen
Eagle Lake.
Comment
NY1056436
Phacelia lutea var. glandulifera
P. A. Munz
1947-5-19
11879
Lassen
Highway 395 4 miles south of Madeline
Comment
NY1056499
Phacelia lutea var. lutea
M. J. Williams
1986-5-12
86- 21 --1
Lassen
Smoke Creek Road, east of Highway 395
1448
Comment
SEINET5518985
Phacelia lutea var. lutea
M. J. Williams, G. Schoolcraft, A. Tiehm
1986-5-12
86- 21 -1
Lassen
Smoke Creek Road, east of HWY 395
1448
Comment
UC1084101
Phacelia procera
Rimo Bacigalupi with G. T. Robbins
1955-7-21
5433
Lassen
along upper reaches of creek about 10 mi sw Susanville (along rd. over Diamond Mtn. ridge to Englemine and Indian Valley); Gold Run Creek
1767
Comment
UC107342
Phacelia ramosissima var. eremophila
T. S. Brandegee
1892-6-29
Lassen
Janesville
Comment
NY1056748
Phacelia tetramera
A. Tiehm
1986-5-12
10349
Lassen
1 road mile west of the state line on the dirt road from highway 395 to Smoke Creek, south side of Rush Creek.
1341.1
Comment
SEINET3091893
Phacelia tetramera
Arnold Tiehm, Margaret Williams, Gary Schoolcraft
1986-5-12
10349
Lassen
1 road mile west of the state line on the dirt road from highway 395 to Smoke Creek, south side of Rush Creek.
1341
Comment
JEPS97248
Phacelia thermalis
Vernon H. Oswald and Lowell Ahart
1995-6-19
6902
Lassen
Between Litchfield and Ravendale on Smoke Creek Ranch Rd., 8.4 mi E of Highway 395.
Comment
UC526141
Phacelia thermalis
John Thomas Howell
1934-6-16
12222
Lassen
Bieber
Comment
CHSC41845
Phleum pratense
P. V. Caldwell
1972-7-12
272
Lassen
Eagle Lake. On banks from Eagle Lake to Papoose Meadows on Papoose Creek.
Comment
UC1567400
Phleum pratense
G. Schoolcraft
1989-7-18
1979
Lassen
near Bucks Spring (s of Clarks Valley Road); near Buck's Spring
1874
Comment
UC1124221
Phlox gracilis
A. Simontacchi
1940-5-10
690
Lassen
7.3 mi w Harvey Mtn. Lookout; Lassen National Forest, Halls Flat Quad.
1752
Comment
CHSC108023
Phlox speciosa subsp. occidentalis
Lowell Ahart; John Dittes
2011-6-20
17506
Lassen
About 40 yards north of the dirt road, about 100 yards northeast of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin.
1520
Comment
CHSC68854
Phoenicaulis cheiranthoides
Vernon Oswald; Lowell Ahart
1997-6-24
8622 .1
Lassen
South of Susanville on the north side of Diamond Mtn. on Forest Rd. 21N52, 1.0 mi southwest of its junction with 29N43. Roadcut.
2164
Comment
JEPS94479
Phoenicaulis cheiranthoides
Vernon H. Oswald and Lowell Ahart
1997-5-27
8490
Lassen
38.2 mi n of Susanville (e side of Highway 139 at a small farm pond, 7.4 mi n of Eagle Lake Road, at a pullout along the highway); Highway 139
1627
Comment
UC1126723
Phoenicaulis cheiranthoides
A. Simontacchi
1940-5-17
753
Lassen
1.1 mi ssw of Dixie Spring (Lassen National Forest); Lassen National Forest
1699
Comment
UC1037196
Phyllodoce breweri
Leo Whitney
1934-9-16
1518
Lassen
Lassen National Park, nw edge of Bumpass Hell Bumpass Hell; Lassen National Park, Bumpass Hell
2560
Comment
CHSC84894
Pinus contorta subsp. murrayana
L. P. Janeway; B. Castro
2003-10-5
8006
Lassen
High Cascade Range. Cone Lake and trailhead parking area (trail 1.3 km southwest into Caribou Wilderness Area).
2055
Comment
CHSC23508
Pinus jeffreyi
Wayne O. Baum
1971-7-16
71 -74
Lassen
E. slope of Gallatin Peak.
2072
Comment
NY61587
Pinus jeffreyi
K. Morris
1973-5-25
219
Lassen
This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request.
Comment
JEPS46865
Pinus ponderosa
G. M. Homans
1914-1-13
Lassen
Big Mdws.
Comment
NY951529
Pinus ponderosa var. ponderosa
D. H. Goldman
2004-11-6
2941
Lassen
Along the N side of Forest Road 32N08, just N of Pine Creel Valley and about 1.8 miles E of the intersection with Rt. 44. Crater Lake Mountain, Lassen National Forest
1725
Comment
SEINET12521273
Pinus ponderosa var. ponderosa
J. Mapes
s.n.
Lassen
Susanville Peak Area. NW corner of Township
Comment
CHSC117547
Plagiobothrys cusickii
Lowell Ahart; John Dittes
2016-7-13
21114
Lassen
100 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the northern slope of Big Valley.
1289
Comment
JEPS114769
Plagiobothrys cusickii
Lowell Ahart, John Dittes
2008-6-20
14914
Lassen
In vernal pools, about 100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber
1263
Comment
RSA0039528
Plagiobothrys cusickii
Lowell A. Ahart, John Dittes
2012-7-9
18284
Lassen
About 100 yards southeast of the tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
UC1601346
Plagiobothrys cusickii
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3371
Lassen
Honey Lake Valley
Comment
CAS-BOT-BC224968
Plagiobothrys hispidulus
J. Burtt Davy
1897-6-17
3360
Lassen
Adobe Meadows, Honey Lake Valley
Comment
CAS-BOT-BC224975
Plagiobothrys hispidulus
John Thomas Howell; Gordon H. True; Wayne Dakan
1974-7-30
50648
Lassen
S and SE of Diamond Mountain
2286
Comment
JEPS87509
Plagiobothrys hispidulus
Vernon H. Oswald and Lowell Ahart
1993-6-14
5510
Lassen
ca 3 mi (air) w. Eagle Lake (junction of Lassen A1 (Eagle Creek Rd.) with Lassen A21 (32N02))
1813
Comment
UC1137645
Plagiobothrys hispidulus
A. Simontacchi
1940-5-21
757
Lassen
4.1 mi sse Blacks Mountain; Halls Flat Quad., Lassen National Forest
Comment
UC1609215
Plagiobothrys hispidulus
Vernon H. Oswald and Lowell Ahart
1993-6-14
5510
Lassen
ca 3 mi (air) w. Eagle Lake (junction of Lassen A1 (Eagle Creek Rd.) with Lassen A21 (32N02))
1813
Comment
CHSC106839
Plagiobothrys hispidus
Barbara Ertter
1987-7-25
7318
Lassen
Hwy 44 ca 1 mi E of Shasta Co. line. Flat lodgepole forest S of hwy.
1645
Comment
RSA666368
Plagiobothrys hispidus
Barbara Ertter
1987-7-25
7318
Lassen
Hwy 44 ca 1 mi E of Shasta Co. line.
1646
Comment
UC100839
Plagiobothrys hispidus
Milo S. Baker
1894-7-12
Lassen
Pine Creek
Comment
UC1483821
Plagiobothrys kingii
G. Schoolcraft
1980-5-8
227
Lassen
s. Herlong
1255
Comment
UC1523814
Plagiobothrys leptocladus
Gary Schoolcraft
1983-6-20
1010
Lassen
Mud Flat , 31-15-22 (31-15-22)
1341
Comment
UC614658
Plagiobothrys leptocladus
L. Constance
1938-6-11
2330
Lassen
slightly alkaline overflow of the Susan River at Litchfield; Susan River, Litchfield
1219
Comment
UC1523740
Plagiobothrys mollis
Gary Schoolcraft
1981-8-11
559
Lassen
Silva Flat Reservoir
1706
Comment
CAS-BOT-BC423310
Plagiobothrys mollis var. mollis
Mary Merello; H. H. Schmidt; L. Woodruff
1993-6-28
751
Lassen
Lassen National Forest, Poison Lake. Along Hwy. 44 just south of the Hwy. 89, Hwy. 44 intersection.
1700
Comment
CHSC99536
Plagiobothrys mollis var. mollis
Lowell Ahart; John Dittes
2008-6-20
14921
Lassen
In vernal pools, about 100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
1263
Comment
RSA0105588
Plagiobothrys stipitatus var. micranthus
Lowell Ahart, John Dittes
2013-7-22
18873
Lassen
40 yards south of the man made pond, about 110 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
JEPS124568
Plagiobothrys tener
Dixie Funnell
1965-7-13
144
Lassen
4.2 miles west of Dead Horse Summit. HW 89.
Comment
CAS-BOT-BC189615
Plagiobothrys torreyi
Clare B. Hardham
1961-6-17
7509
Lassen
Baxter Creek S of Susanville
1676
Comment
HSC16618
Platanthera dilatata var. leucostachys
Jim Vaughn
1956-7-13
Lassen
Drakesbad, Mt. Lassen Natl. Park
1738
Comment
SD7498
Platanthera sparsiflora
Mrs. R. M. Austin
1880-1
Lassen
No further locality information given on label on specimen sheet.
Comment
CHSC107326
Plectritis macrocera
Lowell Ahart; John Dittes
2011-6-20
17494
Lassen
Meadow, about 30 yards east of the stream, about 80 yards north of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin.
1520
Comment
HSC63959
Plectritis macrocera
Teresa Prendusi
1980-5-19
Lassen
Saddle Rock.
1524
Comment
CHSC66852
Pleiacanthus spinosus
Vernon H. Oswald
1996-10-3
8297
Lassen
Modoc Plateau. North of Susanville on Horse Lake Road (Lassen 546) 4.2 mi W of Hwy. 395. On the edge of the road.
1645
Comment
JEPS36547
Pleiacanthus spinosus
W. L. Jepson
1918-8-2
7790
Lassen
Long Valley
1371
Comment
UC1562342
Pleiacanthus spinosus
Vernon Oswald and Lowell Ahart
1990-7-25
4395
Lassen
2.2 mi w Highway 395 (intersection of Hwy 70 and Scott Rd)
1463
Comment
UCD92183
Poa
George A. Fischer; Irwin H. Johnson
1933-7-14
F 245
Lassen
Patterson Flat - Lassen Nat'l Forest.
1737
Comment
CHSC36503
Poa bulbosa
Theresa Costa
1982-6-2
22
Lassen
Ca. 3.5 mi e jct Hwy I39 and Ravendale Rd, ca 5 yd n Ravendale Rd. Creekside.
Comment
JEPS118450
Poa bulbosa
Lowell Ahart, John Dittes
2011-6-20
17495
Lassen
About 40 yards east of the stream, about 80 yards north of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin
1520
Comment
UCD90624
Poa bulbosa
Beecher Crampton
1964-6-27
7096
Lassen
ca. 8 miles southeast of Ravendale Bureau Land Management Spanish Springs--Shinn Mtns. Resource Conservation area.
1981
Comment
CHSC112468
Poa bulbosa subsp. vivipara
Lowell Ahart; John Dittes, Todd Sloat
2013-6-8
18748
Lassen
About 30 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
UCD37475
Poa cusickii
Beecher Crampton
1960-6-18
5708
Lassen
Lassen County, 6 miles southeast of Jess Valley, 3 miles east of Blue Lake, southern Warner Mountains.
2133
Comment
UCD90889
Poa cusickii
Beecher Crampton
1960-6-18
5708
Lassen
northeastern part of county. Long Valley, 6 miles southeast of Jess Valley, southern Warner Mountains.
2133
Comment
UCD90918
Poa cusickii
Leo Whitney
1935-6-10
3214
Lassen
Camp 10, Fruit Grower's Supply Company, Lassen National Forest.
Comment
UC1132870
Poa cusickii subsp. cusickii
A. Simontacchi
1940-5-17
746
Lassen
5.9 mi s Patterson Mt; Lassen Nat'l Forest, Halls Flat Quadrangle
Comment
JEPS85786
Poa secunda
Roy E. Buck and Robert A. Price
1988-6-26
1027
Lassen
ca 30 air km nne Susanville (Fredonyer Peak, on subsidiary peak ca 0.5 air km n of main summit)
2377
Comment
POM112877
Poa secunda
Marcus E. Jones
1897-6-19
11137
Lassen
Chat
1616
Comment
POM267993
Poa secunda
D. D. Keck
1944-7-8
5456
Lassen
5 miles east of Westwood, on road to Fredonyer Pass.
1585
Comment
RSA101643
Poa secunda
D. D. Keck
1944-7-8
5449
Lassen
1.5 mi W. of Susanville, on rim of plateau overlooking Susan River canyon
1341
Comment
CAS-BOT-BC236255
Poa secunda subsp. juncifolia
David D. Keck
1944-7-8
5447
Lassen
2 miles E of Westwood, in meadow leading down to Mountain Meadows Reservoir
1524
Comment
CAS-BOT-BC236256
Poa secunda subsp. juncifolia
David D. Keck
1944-7-8
5449
Lassen
1.5 miles W of Susanville, on rim of plateau overlooking Susan River Canyon
1341
Comment
CAS-BOT-BC251087
Poa secunda subsp. juncifolia
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49460
Lassen
Elysian Valley, west of Janesville
1325
Comment
UC1024869
Poa secunda subsp. juncifolia
Leo Whitney
1935-5-26
3157
Lassen
10 mi e Adin (Ash Creek)
Comment
UC39629
Poa secunda subsp. juncifolia
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3316
Lassen
Honey Lake Valley
Comment
CAS-BOT-BC236179
Poa secunda subsp. secunda
Louella Bass
1973-5-25
EU 44
Lassen
Elysian Valley
1325
Comment
CAS-BOT-BC236183
Poa secunda subsp. secunda
John Thomas Howell; Gordon H. True; Margaret Williams
1973-5-12
49197
Lassen
Elysian Valley NW of Janesville
1325
Comment
UC1136990
Poa secunda subsp. secunda
George A. Fischer and Irwin H. Johnson
1933-7-12
F 206
Lassen
Grass Valley; Lassen Nat'l Forest
1699
Comment
UCD90488
Poa secunda subsp. secunda
A. A. Beetle
1941-6-28
2797
Lassen
10 miles W of Chester.
1524
Comment
UCD91638
Poa secunda subsp. secunda
A. L. Hormay
1941-6-26
37
Lassen
Lassen National Forest. Pine Creek, Bogard Ranger Station.
1706
Comment
UC1024809
Poa wheeleri
Leo Whitney
1935-6-16
3273
Lassen
ca 15 mi w Eagle Lake (Crater Lake); Lassen Nat'l Forest
2133
Comment
UCD91755
Poa wheeleri
Leo Whitney
1935-6-13
3240
Lassen
Camp 10, Fruit Grower's Supply Company, Lassen National Forest.
Comment
UC1483864
Polemonium micranthum
M. Meyer
1980-5-1
Lassen
e Horse Lake Road (s of Ravendale); , e of Horse Lake Road
1645
Comment
UC907836
Polemonium micranthum
John Chattin, Dan Tillotson
1947-5-1
1
Lassen
Bieber
Comment
SD61072
Polemonium occidentale
Darley F. Howe
1964-8-2
3918
Lassen
East Creek, Warner Mountains, Modoc Natl. Forest
2012
Comment
UC23986
Polemonium occidentale subsp. occidentale
M. S. Baker and Frank Nutting
1894-7-31
Lassen
Bridge Creek
Comment
NY182309
Polyctenium fremontii
A. Tiehm
1984-6-25
8825
Lassen
Rodeo Flat, 2.7 road miles west of the state line on Buckhorn road from Ravendale to highway 81.
1828.8
Comment
CDA20360
Polyctenium fremontii
D. Tillotson
1942-6-1
s.n.
Lassen
Modoc Plateau; No other data provided.
0
Comment
RSA0065537
Polyctenium fremontii
M. P. Harthill
1971-6-21
215
Lassen
Susanville.
Comment
SEINET5326411
Polyctenium williamsiae
G. Schoolcraft
1998-5-19
2707
Lassen
S. end Mud Flat.
1341
Comment
SEINET3035191
Polygala lasseniana
A. A. Heller
1938-6-23
15213
Lassen
South of Secret Valley.
Comment
RSA0004885
Polygala lasseniana
A. A. Heller
1938-6-23
15213
Lassen
South of Secret Valley.
Comment
GMDRC7733
Polygala subspinosa
J. M. Andre, G. Clifton
1993-6-1
33410
Lassen
Modoc Plateau: along US Hwy 395 at Viewland, approx 8 mi. ENE of Litchfield, 20 mi. NE of Susanville, east side of Shaffer Mtn
1399
Comment
CAS-BOT-BC419768
Polygonum argyrocoleon
John Thomas Howell
1973-7-10
49763
Lassen
Near Westwood
1554
Comment
UC726283
Polygonum bistortoides
A. A. Heller
1938-6-23
15141
Lassen
2 mi e Westwood
1524
Comment
CAS-BOT-BC414490
Polygonum douglasii
John Thomas Howell
1974-7-10
50562
Lassen
Elysian Valley
1325
Comment
HSC81186
Polygonum douglasii
Thomas W. Nelson, Jane P. Nelson
1980-7-6
6040
Lassen
Along Ash Creek at Ash Creek Campground
1494
Comment
CHSC106091
Polygonum douglasii subsp. douglasii
Lowell Ahart; John Dittes
2010-7-31
16978
Lassen
About 100 yards northeast of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin.
1520
Comment
UC1136177
Polygonum douglasii subsp. douglasii
E. Sawyer
1935-6-27
215
Lassen
Long Valley Sierraville Quadrangle
Comment
UC773925
Polygonum douglasii subsp. douglasii
L. R. Short and J. Warren
July, 1936
S- 420
Lassen
Burgess Spring Experiment Range
1856
Comment
CHSC84438
Polygonum douglasii subsp. spergulariiforme
Lowell Ahart
2003-8-17
10515
Lassen
On the west side of the paved road, on the east side of Highway 36, about 1/4 mile southwest of the Susan River, about 8 miles (air) southwest of Susanville.
1433
Comment
JEPS104432
Polygonum douglasii subsp. spergulariiforme
Lowell Ahart
2003-8-17
10515
Lassen
On the west side of the paved road, on the east side of Highway 36, ca 1/4 mile southwest of the Susan River, ca 8 miles (air) southwest of Susanville.
1433
Comment
UC1178952
Polygonum douglasii subsp. spergulariiforme
Herbert L. Mason
Jul 29 1955-Jul 31 1955
14645
Lassen
near Westwood Junction ((railroad station 15 mi w of Susanville), s Lassen Co.)
Comment
UCD169308
Polygonum douglasii subsp. spergulariiforme
Lowell Ahart
2003-8-17
10515
Lassen
About 8 miles (air) southwest of Susanville, about 1/4 mile southwest of the Susan River, on the east side of Highway 36, on the west side of a paved road.
1433
Comment
HSC30028
Polygonum minimum
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19271
Lassen
Harvey Valley near Cone Springs
Comment
SD7880
Polygonum minimum
Mrs. R. M. Austin
none given
Lassen
Lassen Co.
Comment
JEPS50618
Polygonum persicaria
W. L. Jepson
1939-8-11
19377
Lassen
Milford
1280
Comment
UC1603211
Polygonum polygaloides
J. Guardino
1993-6-8
261
Lassen
near Wayman Barn (at the w end of Hunt Road, Ash Creek Wildlife Area); Ash Creek Wildlife Area, Hunt Road
1264
Comment
CHSC60844
Polygonum polygaloides subsp. confertiflorum
Vernon H. Oswald; Lowell Ahart
1993-6-28
5593
Lassen
Harvey Valley Rd. (33N02), 1.7 mi N of Hwy 44, E side of Grays Valley, E of Poison Lake.
1719
Comment
JEPS83273
Polygonum polygaloides subsp. confertiflorum
J. D. Jokerst
1983-7-24
1883
Lassen
Madeline Plains nw of Ravendale; Madeline Plains
1584
Comment
CHSC6231
Polygonum polygaloides subsp. kelloggii
R. Gein
1946-6-12
Lassen
Webb's Camp, Eagle Lake.
1554
Comment
UCD100647
Polygonum ramosissimum
Verne Grant; Irving Schneider
1947-8-1
8227
Lassen
Southwest into State Fish and Game nesting area on west end of Section 19, Madeline Plain.
Comment
RSA122836
Polygonum sawatchense
L. R. Short, J. Warren
1936-06
s 420
Lassen
Burgess Spring, Exp Range.
1857
Comment
JEPS51302
Polygonum sawatchense subsp. oblivium
Brown and Wieslander
1922-7-23
54
Lassen
Martin Sprs. Eagle Lake
Comment
UC773924
Polygonum sawatchense subsp. oblivium
L. R. Short
1936-5-22
S- 352
Lassen
Burgess Spring Experiment Range Lassen <National> Forest
1836
Comment
HSC82252
Polygonum spergulariiforme
Thomas W. Nelson, Jane P. Nelson
1980-7-6
6009
Lassen
Along Adin-Madelin Rd., 16 mi. E of Adin in Ash Valley
1555
Comment
RSA122848
Polygonum spergulariiforme
L. R. Short
1936-9-30
s 501
Lassen
Burgess Spring, Exp Range.
1768
Comment
CHSC93665
Polypogon monspeliensis
Lowell Ahart; John Dittes
2005-6-2
11967
Lassen
Stream edge, Long Valley, about 4 1/2 miles (air) northeast of the intersection of Scott Road and Highway 70, 5.7 miles (air) northwest of Hallelujah Junction.
1408
Comment
RSA719889
Polypogon monspeliensis
Michael A. Vincent, K. Levings
2006-7-29
12915
Lassen
Along Rt 395, 46.9 road miles SE of Johnstonville, 13.9 miles N of Sierra County line.
Comment
CHSC12484
Populus fremontii
Carol Weld
1969-6-25
22
Lassen
Murrer's Meadow.
1524
Comment
CHSC5224
Porterella carnosula
R. Gein
1946-6-11
Lassen
Near Aspen Grove, Eagle Lake.
1615
Comment
CHSC60343
Porterella carnosula
Mary Ann Showers
1992-6-13
2550
Lassen
Lassen Volcanic National Park. Shoreline at western end of Widow Lake.
2072
Comment
JEPS96122
Porterella carnosula
Vernon H. Oswald and Lowell Ahart
1996-6-24
7854
Lassen
2.5 mi s Eagle Lake (ca 0.5 mi e of Eagle Lake Rd (A1), w side Papoose Meadows, ca 0.3 mi s of the cabins); Modoc Plateau, Papoose Meadows
1633
Comment
UC130334
Porterella carnosula
M. S. Baker and Frank Nutting
1894-7-21
Lassen
near Eagle Lake; near Eagle Lake
1524
Comment
SEINET10460829
Porterella carnosula
Howell
1934-7-7
Howell 12466
Lassen
Near Feather Lake
Comment
SEINET12326931
Porterella carnosula
Unknown
1978-1
15
Lassen
E shore Mahogany L., S of Eagle L., T31N;R11E, sec. 21
2060
Comment
UCD138215
Potamogeton amplifolius
Verne Grant; Irving Schneider
Date Unknown
8269
Lassen
northern part of county. Northwest shore of Blue Lake.
1981
Comment
CHSC60933
Potamogeton diversifolius
Vernon H. Oswald; Lowell Ahart
1993-7-8
5666
Lassen
Pittville Rd. (Lassen 111, 36N01) 2.4 mi N of Hwy. 44, on the NE edge of Poison Lake.
1705
Comment
CAS-BOT-BC267150
Potamogeton foliosus
W. I. Follett; Seth Bertram Benson
1957-11-2
s.n.
Lassen
Tributary of Secret Creek, 1.1 miles N of Karlo
Comment
SEINET4689828
Potamogeton foliosus var. foliosus
B. L. Wilson, D. Lytjen
2005-7-28
11482
Lassen
Deep creek near confluence with a smaller stream
1359
Comment
UC1099819
Potamogeton pectinatus
Malcolm A. Nobs, S. Galen Smith
1949-8-20
1491
Lassen
1 mi s Doyle; Long Creek
Comment
UC1100072
Potamogeton pectinatus
Verne Grant, Irving Schneider
1947-9-6
8380
Lassen
n arm of Eagle Lake
Comment
UC1100079
Potamogeton pectinatus
Verne Grant, Irving Schneider
1947-7-29
8182
Lassen
1 mi e (upstream) of Tule Lake; Cedar Creek
Comment
RSA323730
Potamogeton pusillus
A. Tiehm, Gary Schoolcraft
1984-8-14
9247
Lassen
Buckhorn Reservoir on the south side of Buckhorn road to Ravendale, about 6 road miles west of the state line.
1699
Comment
CAS-BOT-BC454090
Potamogeton pusillus subsp. tenuissimus
Wm. Anderson
1960-6-16
s.n.
Lassen
Barrow pit along county road 1 mi. nw. of Tanner Ranch, Honey Lake Valley
Comment
UC1099901
Potamogeton pusillus var. pusillus
Verne Grant, Irving Schneider
1947-7-31
8202
Lassen
Madeline Plain, ne quarter of George Williams section 19 Madeline Plain
Comment
UC1100047
Potamogeton pusillus var. pusillus
Malcolm A. Nobs, S. Galen Smith
1949-7-20
1045
Lassen
Bieber, along Highway 299 Bieber
Comment
UC1100087
Potamogeton zosteriformis
Verne Grant, Irving Schneider
1947-8-24
8272
Lassen
nw shore of Blue Lake (Northern Lassen County)
Comment
CAS-BOT-BC143401
Potentilla
John Thomas Howell
1976-7-20
52022
Lassen
Along Willard Creek near its confluence with Susan River, about 5 miles west of Fredonyer Pass
1432
Comment
UC1598197
Potentilla basaltica
G. L. Clifton
1988-7-20
18126
Lassen
near Ash Valley; Likely Quad., near Ash Valley
1541
Comment
CAS-BOT-BC540030
Potentilla biennis
Verne Grant; Irving Schneider
1947-7-30
8189
Lassen
South point of west embayment, Tule Lake
Comment
UC1776675
Potentilla breweri
G. Schoolcraft
1994-8-1
2390
Lassen
About 2 miles W of Boot Lake
2456
Comment
CHSC27741
Potentilla glandulosa subsp. ashlandica
Cindy Prouty
1978-7-5
3
Lassen
E shore of Mahogany L., S of Eagle L. Meadow.
2060
Comment
CHSC60394
Potentilla glandulosa subsp. ashlandica
Mary Ann Showers
1992-6-13
2533
Lassen
Lassen Volcanic National Park. Shoreline at western end of Widow Lake.
2072
Comment
UC1136905
Potentilla gracilis
George A. Fischer and Irwin H. Johnson
1933-7-12
F 208
Lassen
Grass Valley Lassen National Forest, Grass Valley
1700
Comment
CAS-BOT-BC141633
Potentilla gracilis var. elmeri
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49452
Lassen
Elysian Valley, west of Janesville - Sierra Nevada
1325
Comment
CHSC4985
Potentilla gracilis var. fastigiata
R. Clicquennoi
1967-6-24
12
Lassen
NW corner of Eagle Lake on highway 139.
1524
Comment
CHSC99535
Potentilla gracilis var. fastigiata
Lowell Ahart; John Dittes
2008-6-20
14954
Lassen
In meadow, about 200 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
1263
Comment
RSA504625
Potentilla gracilis var. fastigiata
Bruce Bartholomew
1988-6-25
4373
Lassen
Long Valley, southern end of the Warner Mountains
2080
Comment
UC1136906
Potentilla gracilis var. fastigiata
L. R. Short and W. McNulty
1936-6-17
S- 443
Lassen
Burgess Spr. Exp. Range Lassen National Forest, Burgess Spr. Exp. Range
1767
Comment
CAS-BOT-BC540359
Potentilla gracilis var. fastigiata
Alice Eastwood
1912-8-22
1870
Lassen
Lassen Butte Region: Morgans Springs
Comment
CAS-BOT-BC540363
Potentilla gracilis var. fastigiata
John Thomas Howell
1934-7-7
12461
Lassen
Bogard Ranger Station
Comment
CHSC66401
Poteridium annuum
Vernon H. Oswald; Lowell Ahart
1996-6-17
7787
Lassen
Modoc Plateau. Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville. On the edge of the trail at the Hwy. 36 bridge spanning the Susan River.
1402
Comment
CHSC27652
Prunella vulgaris var. lanceolata
Jerry Snodgrass
1978-7-11
55
Lassen
Papoose Creek, SE corner of Eagle Lake.
1572
Comment
CHSC1579
Prunus andersonii
A. Stone
1937-5-14
Lassen
Honey Lake region.
Comment
UC1128289
Prunus andersonii
E. Sawyer
1935-6-27
227
Lassen
Long Valley
1310
Comment
SEINET10542397
Prunus andersonii
Paul Gallian, David B. Dunn
1971-6-2
Gallian 486
Lassen
5 miles s of milford near honey lake on us hwy 395. Along roadside in grass, Artemesia tridentata assoc. Quercus, jeffrey pine on mountain range to w at ca The same altitude
1250
Comment
SEINET10542398
Prunus andersonii
Paul Gallian, David B. Dunn
1971-6-2
Gallian 461
Lassen
6 miles n of hallelujah junction on us hwy 395, in artemisa tridentata, pinyon Pine, jeffrey pine along high ridge and in sandy wash
1402
Comment
CAS-BOT-BC154772
Prunus virginiana var. demissa
Alice Eastwood; John Thomas Howell
1940-6-11
7994
Lassen
Nubieber
Comment
CHSC13511
Pseudognaphalium thermale
J. Pitts
1972-6-29
293
Lassen
3 mi se of Five Points on e side of road.
Comment
CAS-BOT-BC239800
Pseudoroegneria spicata
John Thomas Howell
1976-7-20
51997
Lassen
About 5 miles west of Fredonyer Pass near confluence of Susan River and Willard Creek
1432
Comment
CAS-BOT-BC239804
Pseudoroegneria spicata
David D. Keck
1944-7-8
5450
Lassen
1.5 mi. W. of Susanville on rim of plateau overlooking Susan River Canyon
1341
Comment
UCD91511
Pseudoroegneria spicata
August L. Hormay
1929-6-1
s.n.
Lassen
Susanville Forest Office.
Comment
UC718009
Pseudoroegneria spicata subsp. spicata
David D. Keck
1944-7-8
5450
Lassen
1.5 mi w of Susanville (overlooking Susan River Canyon); Sierra Nevada
1341
Comment
CHSC67079
Pseudostellaria jamesiana
Jeanne Boze
1981-6-13
116
Lassen
On northeast slope of Galletin Peak.
1981
Comment
RSA0011562
Psilocarphus
R. F. Thorne, Larry E. DeBuhr
1975-8-22
46990
Lassen
Along Highway 395 ca. 5 miles north of Madeline and ca. 5.5 miles south of Modoc county line.
1616
Comment
JEPS109637
Psilocarphus brevissimus var. brevissimus
Dean W. Taylor
2002-6-21
18174
Lassen
Highway 139 ca. 10 miles N of Susanville, ca. 1 mile south of the southerly end of Willow Creek Valley
1524
Comment
UC1924584
Psilocarphus brevissimus var. brevissimus
Debra Valov
2006-5-28
2006014
Lassen
Bieber off County Rd A2 c. 8 km east of Hwy 299
1271
Comment
CAS-BOT-BC361754
Psilocarphus brevissimus var. brevissimus
H. D. Ripley; R. C. Barneby
1944-5-30
5961
Lassen
North of Viewland
1371
Comment
CHSC60879
Psilocarphus oregonus
Vernon H. Oswald; Lowell Ahart
1993-7-8
5672
Lassen
Halls Flat Rd. (33N18), 1.4 mi SSW of Pittville Rd. (Lassen 111, 36N01), ca. 5.4 mi (air) NW of Poison Lake. On the W side of the road.
1694
Comment
NY702519
Psoralidium lanceolatum
J. T. Howell
1934-6-10
11860
Lassen
Doyle
Comment
JEPS117492
Pterospora andromedea
Lowell Ahart, John Dittes
2010-7-31
17007
Lassen
On the sout side of the road, about 50 yards east of the large culvert, where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin
1516
Comment
UC773902
Pterospora andromedea
L. R. Short and D. Gish
1936-7-15
S 488
Lassen
Burgess Spring Experiment Range
1813
Comment
CHSC99494
Puccinellia lemmonii
Lowell Ahart; John Dittes
2008-6-20
14967
Lassen
Saline area, about 10 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
1263
Comment
RSA0042600
Puccinellia lemmonii
Lowell A. Ahart, John Dittes, Todd Sloat
2013-6-9
18788
Lassen
On the south side of the road, on the south side of McArthur Diversion Canal, 0.32 mile east of Tule River, 2.8 air-miles northwest of McArthur, Fall River Valley, McArthur Swamp.
1008
Comment
CHSC25129
Purshia tridentata
Paul Lyman
1970-5-2
29
Lassen
Bald Mountain; Janesville. On south slope of Bald Mountain, 10 miles East of Susanville.
Comment
SJSU14476
Purshia tridentata
W. D. Pitts
1990-5-24
300
Lassen
by Hwy 395, 5 mi N of Doyle
1310
Comment
CHSC66399
Purshia tridentata var. tridentata
Vernon H. Oswald; Lowell Ahart
1996-6-17
7769
Lassen
Modoc Plateau. Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville. Along the trail on the N side of Hwy. 36 ca. 0.2 mi E of the 7 mile post.
1432
Comment
RSA152670
Purshia tridentata var. tridentata
Dorothy Wiggins
1961-6-10
16321
Lassen
Along California Highway 36. ABout 6 miles W of Susanville.
Comment
UC1128540
Purshia tridentata var. tridentata
C. W. Hanks
1934-9-26
91
Lassen
w side Long Valley (near Plumas National Forest); Sierraville Quad.
1432
Comment
UC73543
Pyrola picta
Milo S. Baker
1890-1
Lassen
Milford
Comment
RSA0084884
Pyrola picta
Christopher Davidson
1974-7-24
2485
Lassen
Ca. 4 mi W of Janesville on rd to Antelope Valley.
2134
Comment
RSA46867
Pyrola picta subsp. dentata
Marcus E. Jones
1897-6-28
s.n.
Lassen
Diamond Mountain; Susanville; Perkin's Ranch.
1829
Comment
UC1037291
Pyrrocoma hirta var. lanulosa
Leo Whitney
1934-7-10
1671
Lassen
ca 14 mi w Eagle Lake (dry meadow near Harvey Valley Spring); Lassen National forest, Harvey Valley
1737
Comment
UC773928
Pyrrocoma hirta var. lanulosa
L. R. Short and J. Warren
1936-8-17
S- 496
Lassen
Burgess Spring Experiment Range Lassen National Forest, Burgess Spring Experiment Range
1783
Comment
SEINET13710357
Pyrrocoma lanceolata
Lowell William Ahart, Lowell William Ahart
1999-1
8231
Lassen
Willow Creek Wildlife Area, Hwy. 139, 4800 Ft (T31N, R12E, sec 4, SW 1/4)
1463
Comment
CAS-BOT-BC362273
Pyrrocoma lanceolata var. lanceolata
James Jokerst
1983-7-24
1881
Lassen
Near Madeline Plains
1614
Comment
JEPS93954
Pyrrocoma racemosa var. paniculata
Vernon H. Oswald
1998-9-14
9625
Lassen
Windy Hollow on the w side of Highway 44 ca. 1 mi nw of its intersection with A21 to Westwood; Windy Hollow, Highway 44
1737
Comment Read comments Jun 3 2007
UCD46065
Quercus garryana var. garryana
James Griffin
1964-8-4
1272
Lassen
Along County road from Little Valley to Dixie Valley, Lassen County, California.
1341
Comment
JEPS107803
Quercus kelloggii
Lowell Ahart, John Dittes
2005-6-2
11942
Lassen
Along a small stream, about 1 1/2 miles northeast of the Anderson Ranch home, Long Valley, about 6 miles (air) north of the intersection of Scott Road and Highway 70, 7.5 miles (air) northwest of Hallelujah Junction
1601
Comment
CHSC112752
Ranunculus aquatilis var. diffusus
Lowell Ahart; John Dittes
2013-7-23
18891
Lassen
Margins of a man made pond, about 150 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
CHSC58853
Ranunculus aquatilis var. diffusus
Vernon H. Oswald; Lowell Ahart
1992-7-16
5121
Lassen
Swamp on Bridge Creek, W of the Cinder Pit on the logging road paralleling the E side of the creek, 1.3 mi N of Hwy. 44 and McCoy Flat Reservoir, between Old Station and Susanville. In pools in a meadow.
1719
Comment
NY493017
Ranunculus aquatilis var. diffusus
B. M. Bartholomew
1988-7-22
4504
Lassen
Mosquito Creek ca. 2 km. southwest of Patterson Meadow, southern end of the Warner Mountain.
2080
Comment
CHSC4872
Ranunculus cymbalaria
R. Carter
1967-6-23
548
Lassen
In meadow, upper Murrer's Meadow.
Comment
CHSC57503
Ranunculus cymbalaria var. saximontanus
Shelly A Kirn
1991-4-21
21
Lassen
S of Lassen County Youth Camp bordering Eagle Lake Field Station property.
1560
Comment
CHSC59807
Ranunculus cymbalaria var. saximontanus
Mary Meyer; Teresa Prendusi
1980-5-8
Lassen
Near the creek in Balls Canyon.
1341
Comment
JEPS55056
Ranunculus cymbalaria var. saximontanus
W. L. Jepson
1918-8-2
7768
Lassen
Beckwith Pass; below spring
1463
Comment
OBI75893
Ranunculus flammula
Anthony Baniaga
2011-8-17
504
Lassen
Lassen Natl Forest. Unnamed ephemeral pool, E of Silver Bowl Camp. Bogard Buttes quad. T31N R7E sec 35 SW of SE
1978
Comment
UC1126218
Ranunculus occidentalis
K. E. Bradshaw
1939-5-27
242
Lassen
Black Mountain Experimental Forest Lassen National Forest, Halls Flat Quadrangle (Plot 39-4)
Comment
NY494893
Ranunculus sceleratus
N. H. Holmgren
1978-6-11
8916
Lassen
Vicinity of spring at fork to Painters Flat on east side of Observation Peak, 28 km (17.4 miles) east of Ravendale and 22.5 km (14 miles) airline distance.
1680
Comment
CDA24358
Ranunculus testiculatus
Robin Breckenridge
2007-5-1
PDR# 1349824 C
Lassen
Wendel.
0
Comment
CHSC63415
Ranunculus testiculatus
Vernon H. Oswald; Beth Corbin, Michael Dolan
1994-6-18
6316
Lassen
Cold Springs near Clarks Valley Rd. (Lassen 510) ca. 11 mi E of Madeline. At a watering trough.
1871
Comment
JEPS94133
Ranunculus testiculatus
Vernon H. Oswald and Lowell Ahart
1988-5-22
9101
Lassen
ca. 3 mi. n. Doyle (Hackstaff Rd. 1.0 mi. s. of Laver Crossing Rd., 0.2 mi. n. of Fort Sage Rd.)
1316
Comment
UC1364997
Ratibida columnifera
Nick Santamaria
1969-7-21
721
Lassen
on service road #33NO1 two mi n Eagle Lake Resort (w side of lake); Eagle Lake
Comment
UC1523733
Rhamnus rubra
Gary Schoolcraft
1981-7-21
544
Lassen
ne of Pittville (along Hwy 299)
1249
Comment
CHSC13607
Ribes
Lynn R Thomas
1969-4-17
93
Lassen
100 yds up slope w of back of Lassen Memorial Hospital, Susanville. Boundary between T29N and T30N.
1310
Comment
RSA0037147
Ribes cereum
J. R. Keck Jr.
1977-7-13
s.n.
Lassen
Near Puls Camp east of Blacks Mountain, Lassen National Forest.
1830
Comment
CAS-BOT-BC212580
Ribes montigenum
Blanche Clear
1938-7-13
s.n.
Lassen
Loop highway on road to Summit Lake
Comment
CAS-BOT-BC186150
Ribes roezlii var. roezlii
Alice Eastwood
1912-8-22
1874
Lassen
Morgans [Morgan] Springs, Lassen Butte Region
Comment
JEPS87425
Ribes velutinum
Vernon H. Oswald and Lowell Ahart
1993-6-14
5547
Lassen
ca 2.0 m ENE Spaulding Tract Rd. (Rd. 518,33N89) (dunes on n side of Eagle Lake Rd. (Lassen Al) at Sandy Beach on the W shore of lake); Eagle Lake
1566
Comment
UC1136911
Ribes velutinum
L. R. Short and Wm. Gansberg
1936-7-9
S- 481
Lassen
MDM, Burgess Spr. Exp. Range Lassen Forest
1783
Comment
SEINET10482959
Ribes velutinum
Mary Susan Taylor
1974-1
Taylor 288
Lassen
Vicinity of Eagle Lake, ca. 13 mi NW of Susanville.
Comment
CHSC23568
Ribes viscosissimum
W. O. Baum
1971-6-21
32
Lassen
E slope on fire trail on Gallatin Peak.
1920
Comment
RSA0020889
Ribes viscosissimum
K. M. Meyer, A. Townesmith
2007-7-23
151
Lassen
Lassen National Forest. 6 miles SW on 32N10 off Hwy. 44. (Turn at rest area on Hwy. 44). At junction of 32N10, 32N09 and 31N36.
1993
Comment
UC1523807
Ribes viscosissimum
Gary Schoolcraft
1982-8-9
860
Lassen
near Susanville; Diamond Mtn.
2011
Comment
CAS-BOT-BC363011
Rigiopappus leptocladus
Arnold Tiehm; Jan Nachlinger; Margaret Williams
1988-6-2
11700
Lassen
South side of Shaffer Mt., 3.4 road miles north of the Wendel road on highway 395 from Susanville to Alturas, west of the highway
1386
Comment
JEPS88202
Rigiopappus leptocladus
Vernon H. Oswald and Lowell Ahart
1996-6-17
7795
Lassen
s side of Bizz Johnson Trail just e Devils Corral Trailhead (trailhead located off Hwy 36 ca. 7 mi w of Susanville); Modoc Plateau
1420
Comment
SD131593
Rigiopappus leptocladus
Arnold Tiehm, Margaret Williams, Jan Nachlinger
1988-6-2
11700
Lassen
south side of Shaffer Mt., 3.4 road miles north of the Wendel road on highway 395 from susanville to Alturas west of the highway
1385
Comment
CAS-BOT-BC363013
Rigiopappus leptocladus
Milo S. Baker
1894-7-1
s.n.
Lassen
S. side Dixey [Dixie] Mts.
Comment
CAS-BOT-BC74531
Rorippa curvisiliqua
John Thomas Howell; Gordon H. True
1973-8-1
50243
Lassen
Sierra Nevada. East slope of Diamond Range south of Susanville.
2133
Comment
JEPS119648
Rorippa curvisiliqua
Lowell Ahart, John Dittes
2012-7-9
18292
Lassen
Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
Comment
UC10717
Rorippa curvisiliqua
M. S. Baker and F. Nutting
1894-7-1
Lassen
Dixey Mts.
Comment
UC1523775
Rorippa curvisiliqua
Gary Schoolcraft
1981-7-20
519
Lassen
around Said Valley Reservoir; around Said Valley Reservoir
1630
Comment
UCD107036
Rorippa curvisiliqua
Tim Kuhn
2006-7-18
11
Lassen
Eagle Lake Ranger District.
Comment
CHSC99504
Rorippa curvisiliqua var. orientalis
Lowell Ahart; John Dittes
2008-6-20
14937
Lassen
On the edge of Big Valley Canal and in vernal pools, about 100 yards south of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
1263
Comment
CDA25121
Rorippa nasturtium-aquaticum
Gordon Leppig
1998-7-12
959
Lassen
Northern California Peatlands; Modoc National Forest, Blue Lake Ranch.
Comment
CHSC13796
Rorippa nasturtium-aquaticum
Cathy Crittenden
1970-7-8
31
Lassen
Lower Murrer's Meadow; by Willow Creek.
1463
Comment
CHSC36472
Rorippa nasturtium-aquaticum
Jeffrey R. Peek
1982-6-4
33
Lassen
Ca. 50 yds along Willow Creek from its beginning in Murrers Upper Meadow.
Comment
CHSC5023
Rorippa nasturtium-aquaticum
L. G. Bennett
1967-6-24
45
Lassen
Murrers Meadow, near Eagle Lake.
1493
Comment
UC1126740
Rorippa nasturtium-aquaticum
Robert W. Gardner
1937-6-16
G- 15
Lassen
Burgess Spring Experimental Range Halls Flat Quad., Burgess Spring Experimental Range
Comment
SEINET10448590
Rorippa obtusa
Mary Susan Taylor
1974-7-8
Taylor 265
Lassen
Ca. 1 mi N of Honey Lake, ca. 1 mi S of Standish, Honey Lake Wildlife Refuge.
Comment
CAS-BOT-BC74856
Rorippa sinuata
Verne Grant; Irving Schneider
1947-8-1
8226
Lassen
Irrigation ditch running southwest into State Fish and Game nesting area on west end of Section 19, Madeline Plain.
Comment
CHSC60400
Rosa woodsii subsp. ultramontana
Mary Ann Showers
1992-6-13
2533
Lassen
Lassen Volcanic National Park. East shore of Butte Lake, ca. .3 miles south of Butte Creek outlet. West of trail, near shoreline.
1841
Comment
JEPS45639
Rosa woodsii var. ultramontana
W. L. Jepson
1918-8-3
7801
Lassen
Honey Lake Valley
1219
Comment
SD61071
Rosa woodsii var. ultramontana
Darley F. Howe
none given
Lassen
Hillside of Parsnip Creek, Modoc National Forest
1829
Comment
POM90170
Rosa woodsii var. ultramontana
Marcus E. Jones
1897-6-22
s.n.
Lassen
10 miles south of Amedee. [Lassen or Plumas Co.]
1220
Comment
CAS-BOT-BC148360
Rubus leucodermis
George W. Gillett
1957-7-26
914
Lassen
Butte Lake - Lassen Volcanic National Park
1844
Comment
JEPS117592
Rumex acetosella
2010-7-31
17001
Lassen
About 50 yards east of the large culvert, where the road crosses Hunsinger Draw, 1.9 air miles northwest of Moll Reservoir, 2.8 air miles west of Ash Valley, 8.4 air miles southeast of Adin
1516
Comment
UC1191289
Rumex crispus
Malcolm A. Nobs and S. Galen Smith
1949-8-20
1481
Lassen
1 mi n Doyle; Long Creek
Comment
CHSC1357
Rumex hymenosepalus
M. Anthony
1954-5-1
Lassen
Hwy 395 between Susanville and Hallelujah Jct.
Comment
CAS-BOT-BC109329
Rumex paucifolius
G. Schoolcraft
1987-4-29
1689
Lassen
Ash Valley RNA.
1554
Comment
CDA23194
Rumex salicifolius
T. C. Fuller, R. C. Bechtel, R. Bradley
1981-7-9
20384
Lassen
West end of the dam of Smoke Creek Reservoir.
0
Comment
CAS-BOT-BC433860
Rumex salicifolius
B. Bartholomew; B. Anderson
1988-7-22
4497
Lassen
Mosquito Creek ca. 2 km SW of Patterson Meadow, southern end of the Warner Mountain.
2080
Comment
UC1036081
Rumex salicifolius var. lacustris
Annie M. Alexander and Louise Kellogg
1946-8-11
5154
Lassen
nw end Eagle Lake (Sam Webb's Hunting Cabins)
Comment
RSA0105590
Rumex stenophyllus
Lowell Ahart, John Dittes
2013-7-22
18866
Lassen
North margin of road levee, about 100 yards east of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
CAS-BOT-BC434262
Rumex triangulivalvis
John Thomas Howell
1934-7-8
12486
Lassen
Spalding's, Eagle Lake
Comment
JEPS119645
Rumex triangulivalvis
Lowell Ahart, John Dittes
2012-7-9
18302
Lassen
Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
Comment
UCD150405
Rumex venosus
William Anderson
1963-6-2
s.n.
Lassen
Honey Lake Refuge.
Comment
SEINET4176577
Rumex venosus
M. J. Williams
1969-5-24
s.n.
Lassen
Near Doyle
1524
Comment
CHSC66737
Sagittaria cuneata
Vernon H. Oswald; Lowell Ahart
1996-8-1
8107
Lassen
Mountain Meadows Reservoir SW of Westwood. On the receding shore of the reservoir NE of Indian Ole Dam.
1539
Comment
HSC2900
Sagittaria latifolia
Fred J. Kindel
1955-6-30
Lassen
Mtn. Meadows Reservoir.
Comment
CAS-BOT-BC107961
Salix geyeriana
John Thomas Howell; Gordon H. True; Margaret Williams
1973-5-12
49220
Lassen
Elysian Valley northwest of Janesville - Sierra Nevada
1325
Comment
CAS-BOT-BC128221
Salix lasiandra subsp. caudata
John Thomas Howell; Gordon H. True; Margaret Williams
1973-5-12
49221
Lassen
Elysian Valley northwest of Janesville - Sierra Nevada
1325
Comment
CAS-BOT-BC128174
Salix lasiandra var. lasiandra
Mrs. E. C. Sutliffe
1927-6-1
s.n.
Lassen
Drakesbad - Lassen Volcanic park
Comment
JEPS88212
Salix lasiandra var. lasiandra
Vernon H. Oswald and Lowell Ahart
1996-6-17
7790
Lassen
Bizz Johnson Trail accessed at Devils Corral Trailhead located off Hwy. 36 ca. 7 mi W of Susanville. Modoc Plateau
1402
Comment
CAS-BOT-BC106964
Salix lasiolepis
G. Schoolcraft
1999-5-7
2820
Lassen
Along B.J. Trail near 4 mi. marker w. of Susanville
1371
Comment
POM107066
Salix melanopsis
Marcus E. Jones
1897-6-25
s.n.
Lassen
Susanville.
1341
Comment
CHSC66405
Salix scouleriana
Vernon H. Oswald; Lowell Ahart
1996-6-17
7770
Lassen
Modoc Plateau. Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville. Ca. 2 mi E of the 7 mile post.
1432
Comment
UCD125447
Salvia aethiopis
L. Myler
1951-1
s.n.
Lassen
Exact location unknown.
Comment
SEINET10880384
Sambucus caerulea
Andrew Townesmith
2012-9-4
Townesmith 2398
Lassen
Along California route 44, at milepost 34, ca. 2 miles west of intersection with California route 36.
1671
Comment
CHSC12487
Sambucus mexicana
Carol Weld
1969-6-26
45
Lassen
7.8 miles SW of Eagle Lake Field Station.
1584
Comment
UC1136751
Sambucus mexicana
L. R. Short and J. Warren
1936-7-28
S- 490
Lassen
Burgess Spring Experiment Range Lassen National Forest
1859
Comment
UC1523804
Sambucus mexicana
Gary Schoolcraft
1982-8-4
850
Lassen
on road to Hayden Hill about 1/2 mi s Hwy 139 (37-10-29)
1524
Comment
UCD137207
Sambucus nigra subsp. caerulea
P. B. Schultz
1967-7-12
78
Lassen
14 miles southeast of Adin on State Highway 139.
1524
Comment
JEPS94454
Sanicula graveolens
Vernon Oswald and Lowell Ahart
1997-6-24
8629
Lassen
s of Susanville (near the small pond on the crest of Diamond Mountain, about midway between Aspen Flat and Red Rock Lookout); crest of Diamond Mountain
2249
Comment
OBI75902
Sanicula graveolens
Anthony Baniaga
2011-8-1
475
Lassen
Lassen Natl Forest. NW Swain Meadow. Swain Mtn qud T30N R8E sec 27 SE of NW
1768
Comment
UC1598734
Sanicula tuberosa
M. S. Baker and Frank Nutting
1894-7-9
Lassen
Pine Creek
Comment
CHSC30628
Sarcobatus vermiculatus
T. M. Lane
1975-7-7
35
Lassen
SE of Horse Lake Rd, on se shore of Horse Lake; 19 km nne of Susanville.
1508
Comment
CHSC31116
Sarcobatus vermiculatus
J. S. White
1980-4-14
114
Lassen
Basin area. 0.1 mi n of US Hwy 395 3.5 mi e of Litchfield.
1341
Comment
SJSU14475
Sarcobatus vermiculatus
W. D. Pitts
1990-5-29
298
Lassen
by Hwy 395 between Madeline & Ravendale
1432
Comment
UCD54536
Sarcobatus vermiculatus
Ellen Dean; Petra Unger, Dawn Cunningham
2005-10-10
2721
Lassen
E. of town of Susanville, along C.R. A27 (Center Rd.) Grounds of California Correctional Facility. Sewage treatment plant area.
1247
Comment
CDA25442
Saxifraga oregana
Gordon Leppig
1998-7-12
939
Lassen
Northern California Peatlands; Modoc National Forest, Blue Lake Ranch.
Comment
CHSC114035
Schoenoplectus acutus var. occidentalis
Richard R. Halse
2012-8-20
8661
Lassen
Along State Hwy. 139 at Eagle Lake, ca. 26.6 miles north of Susanville.
1558
Comment
SEINET10751251
Scirpus acutus var. occidentalis
Andrew Townesmith, Karen M. Meyer
2007-7-22
Townesmith 842
Lassen
Lassen National Forest, Almanor Ranger District. Little Tule Lake, 6.1 miles west county road A21 on county road 110 and Forest Service road 10. T31N R7E S35 NW 1/4.
1980
Comment
HSC95197
Scirpus microcarpus
Gordon Leppig
1998-7-12
943
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
POM111502
Scirpus microcarpus
Marcus E. Jones
1897-6-25
s.n.
Lassen
Susanville.
1341
Comment
UC1100881
Scirpus nevadensis
Verne Grant and Irving Schneider
1947-9-5
8376
Lassen
nw shore Eagle Lake (by Sam Webb's place; Spaulding); nw shore Eagle Lake by Sam Webb's place
Comment
JEPS63795
Scirpus pungens
W. L. Jepson
1918-8-2
7785
Lassen
1 mi below Boni Ranch house (lower bench of Long Valley Creek); Long Valley
1371
Comment
SEINET6727388
Sclerolinon digynum
J. T. Howell, G. H. True., Jr.
1973-6-28
49490
Lassen
Sierra Nevada, Elysian Valley
1326
Comment
RSA165466
Scrophularia lanceolata
Clare B. Hardham
1961-6-17
7531 a
Lassen
Rte 395 Alturas Susanville Road
1524
Comment
RSA0003996
Scutellaria holmgreniorum
Noel Holmgren, Pat Holmgren
1980-7-5
9524
Lassen
Upper Smoke Creek drainage, 21.9 km. from U.S. Hwy. 395 via Rye Patch Can.
Comment
RSA488564
Scutellaria nana
Arnold Tiehm, Raymond Evans, James Young
1984-6-7
8591
Lassen
Flats on the northwest side of Schaffer Mountain, 7.5 air miles north-northwest of Litchfield
1372
Comment
SBBG125002
Scutellaria nana
C. B. Hardham
-Jun-2000
Lassen
Gold Run Crk, S of Susanville
Comment
UC1037195
Scutellaria nana
Leo Whitney
1934-7-10
1513
Lassen
14 mi w of Eagle Lake (near Harvey Valley); Lassen National Forest
1737
Comment
UC1609093
Scutellaria nana
Vernon H. Oswald and Lowell Ahart
1993-7-8
5653
Lassen
on se edge of Poison Lake (Pittville Rd. (Lassen 111, 36N01) 1.9 mi n of Hwy 44)
1709
Comment
CAS-BOT-BC240084
Secale cereale
Ira L. Wiggins; Dorothy B. Wiggins
1961-6-11
16342
Lassen
13.5 mi. E. of Susanville
Comment
CAS-BOT-BC240087
Secale cereale
David D. Keck; J. Clausen
1935-6-24
3750
Lassen
2 mi. S. of Ravendale
1464
Comment
CDA28589
Secale cereale
D. Haskelle
2000-2-7
s.n.
Lassen
Doyle.
0
Comment
UCD92555
Secale cereale
D. Haskelle
2000-2-7
s.n.
Lassen
Doyle.
Comment
UCR244035
Secale cereale
Jim Andre
1993-6-5
19705
Lassen
Sierra Nevada/Great Basin, Honey Lake Valley, c. 3 mi. SE of Susanville, just south of airport
1256
Comment
UC1136809
Senecio aronicoides
L. R. Short and Wm. Gansberg
1936-6-2
S- 355
Lassen
Burgess Spr. Exp. Range Lassen Forest
1865
Comment
UC831880
Senecio aronicoides
A. A. Heller
1938-6-4
15143
Lassen
w of Fredonyer Pass (on Highway 36)
1676
Comment
RSA0012768
Senecio aronicoides
A. A. Heller
1938-6-4
15143
Lassen
West of Fredonyer Pass on Highway 36.
1677
Comment
UC1609237
Senecio hydrophiloides
Vernon H. Oswald and Lowell Ahart
1993-6-28
5600
Lassen
Rd 35N04 at Aspen Well (n of Hwy 44 on nw edge of valley, ne of Poison Lake); Harvey Valley
1725
Comment
UC2027206
Senecio hydrophiloides
Anthony Baniaga
2011-6-21
388
Lassen
Lassen National Forest. Southern McCoy Flat. Spalding Tract quandrangle
Comment
HSC42542
Senecio hydrophilus
Barbara Kelly
1977-8-9
564
Lassen
15 miles east of Madeline on a dirt road from Adin
Comment
RSA0012449
Senecio hydrophilus
A. A. Heller
1938-6-23
15192
Lassen
east of Westwood, the margin bordered with sagebrush, where a tongue of Upper Sonoran protrudes into the Transition Life Zone.
Comment
SEINET10799215
Senecio integerrimus
Jeffrey Huber
1971-6-2
Huber 129
Lassen
Approx. 30 mi. N of Susanville, on Calif. Hwy. 139, in basalt; Pinus-Artemisia-Juniper Assoc.
1646
Comment
SEINET10799218
Senecio integerrimus
David B. Dunn, Billy Joe Cox
1971-6-2
Dunn 17788
Lassen
6 mi. N of Hallelujah Jct. on U.S. Hwy. 395, in Artemisia tridentata, Pinyon pine, Jeffery Pine along high ridge & in sandy wash.
1402
Comment
CHSC5218
Senecio integerrimus var. exaltatus
A. Santos
1946-6-13
Lassen
Pine Creek, Eagle Lake.
1600
Comment
SFV10993
Senecio serra
J. Turner, F. M. Ball (1192)
1962-7-13
s. n.
Lassen
Laufman Public Camp, 3 miles off Highway 395 from Milford near Honey Lake.
1494
Comment
RSA0013303
Senecio serra var. serra
Bruce Bartholomew, B. Anderson
1988-7-22
4496
Lassen
Mosquito Creek ca. 2 km SW of Patterson Meadow, southern end of the Warner Mountain
2080
Comment
JEPS117478
Setaria viridis
Lowell Ahart, John Dittes
2010-8-31
17139
Lassen
On the east side of Walters Road, 4235 feet south of Modoc County Line, about 4.3 miles (air) south-southwest of Adin, about 7.0 miles (air) northeast of Bieber, Big Valley
1276
Comment
UC1121981
Sidalcea asprella subsp. nana
A. Simontacchi
1940-6-3
793
Lassen
8.2 mi se Alcohol Jacks Cabin; Lassen National Forest, Halls Flat Quad.
1706
Comment
HSC22981
Sidalcea malviflora
John Pratt
1970-7-9
71
Lassen
1677
Comment
CAS-BOT-BC205776
Sidalcea oregana
David D. Keck; J. Clausen
1935-6-24
3740
Lassen
2 mi. S. of Ravendale
1464
Comment
CAS-BOT-BC205779
Sidalcea oregana
B. Bartholomew; B. Anderson
1988-7-22
4506
Lassen
Mosquito Creek ca. 2 km SW of Patterson Meadow, southern end of the Warner Mountain
2080
Comment
CHSC27642
Sidalcea oregana
George Deniso
1978-7-21
88
Lassen
Colman L., W shore, SE of Eagle L.
1962
Comment
CAS-BOT-BC205781
Sidalcea oregana
Elmer I. Applegate
1929-6-24
5877
Lassen
Big Valley, just southwest of Bieber, northwest Lassen County
Comment
POM260336
Sidalcea oregana subsp. oregana
C. L. Hitchcock
1940-5-26
6644
Lassen
Overflow of Pitt River, 1 mile W of Bieber
Comment
POM260877
Sidalcea oregana subsp. oregana
Alice Eastwood, J. T. Howell
1940-6-11
7982
Lassen
Big Valley Mountains.
Comment
RSA719898
Sidalcea oregana subsp. oregana
Michael A. Vincent, K. Levings
2006-7-29
12906
Lassen
Along Rte. 36, 14.3 miles west of Susanville
Comment
JEPS28713
Sidalcea oregana subsp. spicata
George W. Gillett
1957-7-29
944
Lassen
along trail between Butte Lake and Snag Lake; Lassen Volcanic National Park, btw Butte Lake and Snag Lake
1859
Comment
POM84772
Sidalcea oregana subsp. spicata
Marcus E. Jones
1897-6-21
s.n.
Lassen
Chat.
1616
Comment
UC1553380
Sidalcea oregana subsp. spicata
G. Schoolcraft
1988-7-7
1820
Lassen
at Painter Creek and Horne Ranch Rd. crossing
1645
Comment
NY54618
Sidalcea oregana var. maxima
N. H. Holmgren
1980-7-3
9479
Lassen
Madeline Plains, Westside Road, 9 km (5.6 mi) west of U.S. highway 395, 16 km (10 mi) airline distance northwest of Termo
1620
Comment
CHSC57275
Silene bernardina
Mary Meyer
1980-7-22
Lassen
Downhill 100 yds west from sharp bend in road on top going to Lookout Tower.
2316
Comment
UC1483814
Silene bernardina
G. Schoolcraft
1979-6-7
129
Lassen
northern Skidaddle Mountains
2011
Comment
UC506918
Silene bernardina
George A. Fischer and Irwin H. Johnson
1933-7-14
F- 257
Lassen
Lassen Forest
1783
Comment
UC311415
Silene lemmonii
Marcus E. Jones, A. M.
1897-6-28
Lassen
Perkin's Ranch Diamond Mt., , Perkin's Ranch (Susanville)
1828
Comment
SEINET8879824
Silene menziesii
R. R. Halse
2006-8-3
6992
Lassen
Modoc NF, along Blue Lake Road N of Blue Lake, above Parsnip Creek, ca 15 miles ESE of Likely.
1860
Comment
SD61034
Silene menziesii
Darley F. Howe
1964-8-1
3908
Lassen
Parsnip Creek, Warner Mountains, Modoc National Forest.
1830
Comment
CAS-BOT-BC389554
Silene nuda
Elmer I. Applegate
1923-9-30
4035
Lassen
Constantia, Honey Lake Valley
Comment
CHSC4836
Silene nuda
R. Carter
1967-7-16
616
Lassen
Willow Creek Valley, e of Murrer's Ranch, 1.5 mi w of highway 139 on rd to Eagle Lake, ca. 12 mi n of Susanville, on s side of rd.
Comment
CHSC91925
Silene nuda
L. P. Janeway
2005-7-31
8511
Lassen
Northern High Sierra Nevada. Diamond Mountains; head of large flat dry meadow at head of Bird Creek; 0.8 km northeast of Meadow View Peak.
1960
Comment
UC569941
Silene nuda
E. Sawyer
1935-6-27
223
Lassen
Long Valley Sierraville Quad., Long Valley
Comment
CAS-BOT-BC389550
Silene nuda
John Thomas Howell
1976-7-20
52021
Lassen
Flats along Willard Creek near its confluence with Susan River, about 5 miles west of Fredonyer Pass
1432
Comment
SJSU10112
Silene nuda
J. W. Tilden
1960-6-27
1502
Lassen
foot of Moonlight Rd near Westwood
1524
Comment
CAS-BOT-BC75079
Sisymbrium altissimum
Louella Bass
1973-5-25
46
Lassen
Sierra Nevada. Elysian Valley.
1325
Comment
RSA715618
Sisymbrium altissimum
L. Ahart, John Dittes
2005-6-1
11850
Lassen
On the west side of the poor dirt road, about 1/2 mile west of Scott Road, Long Valley, About 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.9 miles (air) northwest of Hallelujah Junction.
1449
Comment
RSA0028051
Sisymbrium altissimum
John F. Emmel
1996-7-14
1425
Lassen
North base of Ft. Sage Mts., south edge of Honey Lake Valley; gently sloping sandy flats 0.2-0.3 air mile north and 0.15-0.3 air mile east of 4818 ft. peak of Turtle Mtn.
1280
Comment
CHSC5932
Sisyrinchium bellum
M. West
1946-6-20
Lassen
Eagle Lake. Grasshopper Valley.
1624
Comment
UC1137572
Solidago velutina subsp. californica
A. Simontacchi
1940-7-5
927
Lassen
6.3 mi ene Ebey Lake; Halls Flat Quad.
Comment
UC1776708
Solidago velutina subsp. sparsiflora
G. Schoolcraft
1994-8-3
2416
Lassen
About 1 mile S of Boot Lake
1889
Comment
HSC95260
Sparganium emersum
Gordon Leppig, Tony LaBanca, Leonel Arguello
1997-6-29
530
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
HSC21349
Sparganium emersum
Fred J. Kindel
1955-6-27
Lassen
Mt. Meadows Reservoir.
Comment
JEPS96089
Sparganium emersum subsp. emersum
Vernon H. Oswald and Lowell Ahart
1996-6-24
7871
Lassen
Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake, Modoc Plateau, Montane Meadow
1633
Comment
UC1537628
Sparganium eurycarpum var. eurycarpum
Gordon H. True Jr.
1939-7-6
1024
Lassen
Honey Lake Valley; George Bailey Ranch
Comment
CHSC66424
Sparganium natans
Vernon H. Oswald
1996-6-15
7766
Lassen
Modoc Plateau. Papoose Meadows located ca. 2 mi S of Gallatin Beach at Eagle Lake, NW of Susanville. In Papoose Creek where it leaves the meadow.
1633
Comment
SEINET10879624
Sparganium natans
Andrew Townesmith, Karen M. Meyer
2007-7-22
Townesmith 844
Lassen
Lassen National Forest, Almanor Ranger District. 0.25 miles west of Forest Service road 10 on Forest Service road 31N24. T31N R7E S26 SW 1/4.
1981
Comment
CHSC64869
Sphaeromeria potentilloides var. potentilloides
Vernon H. Oswald
1995-6-26
6934
Lassen
Modoc Plateau. Ash Valley Rd. (Lassen 527) 0.4 mi n of Spooner Rd. in Ash Valley. On the e side of the road adjacent to a flat of low sagebrush.
1542
Comment
CAS-BOT-BC149628
Spiraea douglasii
Ray Hanson
1954-8-23
s.n.
Lassen
Lassen Park, near Jakey Lake
2112
Comment
UC845562
Spiranthes romanzoffiana
A. A. Heller
1938-7-28
15297
Lassen
meadow about 1 mi e Westwood
1524
Comment
CAS-BOT-BC60993
Stanleya viridiflora
Louella Bass
1982-7-25
10 -82
Lassen
Near Karlo, about 12 miles north of Litchfield.
1356
Comment
SEINET10965514
Stellaria longipes
Mary Susan Taylor
1982-6-12
Taylor 4660
Lassen
T25N R17E se sec 8. Doyle quad. In sandy Sagebrush Scrub, in Doyle, ca. 1/2 mi e of Hwy 395.
Comment
SEINET11924834
Stellaria longipes
Unknown
1967-1
550
Lassen
25 yds W of dam in Murrer's Meadow
Comment
CHSC93702
Stellaria longipes var. longipes
Lowell Ahart; John Dittes
2005-6-2
11992
Lassen
Along a small wash, west side of a poor dirt road, Long Valley, about 4 1/2 miles (air) northeast of the intersection of Scott Road and Highway 70, 6.0 miles (air) northwest of Hallelujah Junction.
1427
Comment
SEINET10537644
Stellaria longipes var. longipes
Mary Merello
1993-6-28
Merello 756
Lassen
Lassen National Forest. At end of Forest Service Road 31N01 at lake. Pine woodland.
1740
Comment
CAS-BOT-BC375006
Stenotus acaulis
John Thomas Howell; Gordon H. True; Wayne Dakan
1974-7-30
50659
Lassen
Summit ridge of Diamond Mountain
2346
Comment
JEPS94472
Stenotus acaulis
Vernon H. Oswald and Lowell Ahart
1997-5-27
8507
Lassen
0.3 mi e of Highway 139 (n of Susanville on Forest Route 38N04 between Hwy 139 near Willow Creek Guard Station and Coyote Flat, betw road and creek paralleling rd to north); Forest Route 38N04
1560
Comment
POM42274
Stenotus acaulis
Marcus E. Jones
1897-6-28
s.n.
Lassen
Top of Diamond Mt. Susanville. Perkin's Ranch.
2226
Comment
RSA713119
Stenotus acaulis
L. P. Janeway, B. Castro
2005-7-10
8487
Lassen
Northern High Sierra Nevada. Crest of Diamond Mountains overlooking the NW end of Honey Lake, more or less at the north end of Stony Ridge.
1993
Comment
CHSC77201
Stenotus lanuginosus
G. Schoolcraft
1993-6-10
2294
Lassen
Along Clark's Valley Rd. s. of Red Rock Lake.
1828
Comment
CDA19745
Stenotus stenophyllus
D. Tillotson
1942-6-1
s.n.
Lassen
Modoc Plateau; Eagle Lake.
0
Comment
CDA18266
Stephanomeria spinosa
G. D. Barbe
1974-8-2
1929
Lassen
Long Valley; Hallelujah Junction, northwest corner of jct of US Hwy 395 and Hwy 70.
1524
Comment
CDA8868
Stephanomeria spinosa
E. E. Fix
1946-7-21
Lassen
Susanville.
0
Comment
HSC22318
Stipa nelsonii subsp. dorei
D. E. Anderson
1969-7-5
4992
Lassen
Freedonyer Pass, 15 mi. W of Susanville
1752
Comment
SEINET8080232
Stipa occidentalis var. californica
M. J. Williams
1974-7-26
74 -L-37
Lassen
2 miles W of Hallelujah Junction, S of Hwy. 70.
1494
Comment
JEPS126469
Stipa thurberiana
Jillian Pastick, Lillie Pennington, Andrea Stuemsky
2015-6-18
CA 350 -039
Lassen
Take 139 towards Antelope Grade and take a right after passing the fire station. Continue on dirt road for less than 0.5 miles.
Comment
UCD149957
Stuckenia filiformis subsp. alpina
William Anderson
1963-6-24
s.n.
Lassen
Hartson Reservoir.
Comment
HSC23510
Stuckenia pectinata
R. Carter
1967-7-13
594
Lassen
5 mi. E of Eagle Lake Biology Station at point where road comes nearest to Willow Creek
1561
Comment
SEINET958426
Stuckenia pectinata
Verne Grant, Irving Schneider
1947-1
8184
Lassen
East side of Tule Lake.
Comment
CHSC63602
Subularia aquatica var. americana
Vernon H. Oswald; John Ost, Mary Lou Mini
1994-8-6
6447
Lassen
Caribou Wilderness along the west loop of the trail from the Hay Meadow to Long Lake. On the margin of a pond.
2065
Comment
CHSC105255
Swertia albicaulis var. albicaulis
Lowell Ahart; John Dittes
2010-7-31
16987
Lassen
About 100 yards northeast of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin.
1520
Comment
CHSC64843
Swertia albicaulis var. albicaulis
Vernon H. Oswald
1995-6-26
6920
Lassen
Modoc Plateau. Ash Valley Rd. (Lassen 527), 4.2 mi w of Madeline.
1652
Comment
RSA0037006
Swertia albicaulis var. albicaulis
Lowell A. Ahart, John Dittes
2008-6-19
14881
Lassen
About 100 yards east of Willow Creek, about 120 yards northeast of Highway 139, near Forest Road 36N02, about 19.6 miles east-southeast of Bieber.
1578
Comment
JEPS123497
Symphoricarpos longiflorus
Wilson Collison, Jaileen Merced
2015-8-8
CA 320 -143
Lassen
To Highway 139 W (North) from Termo - Grasshopper Road continue 4.5 mi (1 mile after entering forest). Turn right on to Grand Road (37N29). Continue uphill (East), right at 1st fork, straight at 2nd.
Comment
UC28680
Symphoricarpos mollis
Mrs. R. M. Austin and Bruce
Jun 1898
2337
Lassen
high mountains
Comment
CHSC83620
Symphoricarpos rotundifolius var. rotundifolius
L. P. Janeway
2001-6-28
7236
Lassen
High Cascade Range. Southwest flank of Cone Mountain, 0.5 km southwest of the summit; along Road 33N41Y 0.5 km southeast of Road 33N41YD.
1955
Comment
CHSC5199
Symphyotrichum campestre
1944-7-5
Lassen
Eagle Lake. Harvey Valley.
1695
Comment