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Specimen ID
Determination *
Collector
Collection Date
Collection Number
County
Locality
Elevation in meters
Feedback
SD132529
Abies concolor
F. C. Vasek
1976-9-3
760903 3
Lassen
5 miles west of Susanville, north of State Highway #44 at a point Ao mile north of junction with State Highway #36
Comment
SEINET11305032
Abies concolor var. lowiana
D. Charlet
1996-7-8
2287
Lassen
Diamond Mountains, Sierra NV, Great Basin drainage (Honey Lake); East Canyon (Milford Grade); at Laufman Campground
1622
Comment
CHSC6219
Abies magnifica
P. Balch
1955-6-1
Lassen
Silver Lake.
1981
Comment
CAS-BOT-BC28648
Achillea millefolium
Louella Bass
1973-5-29
72
Lassen
Elysian Valley
1325
Comment
CHSC67055
Achillea millefolium
Willis Ball
1969-6-20
19
Lassen
Found in Dean's Meadow.
1950
Comment
UC1136758
Achillea millefolium
George A. Fischer and Irwin H. Johnson
1933-7-12
F 207
Lassen
Grass Valley
1700
Comment
UC506997
Achillea millefolium
George A. Fisher and Irwin H. Johnson
1933-7-12
F 207
Lassen
Grass Valley; Lassen Natl. Forest
Comment
SEINET11842145
Achillea millefolium
Unknown
1978-1
30
Lassen
Willard Creek, 2 mi S of Hwy 36 at Forest Service campsite. T29N, R10E, sec. 24
1500
Comment
CAS-BOT-BC260401
Achnatherum hymenoides
John Thomas Howell
1974-7-8
50464
Lassen
Susanville
1295
Comment
UCD50374
Achnatherum hymenoides
P. B. Kennedy
1901-6-10
s.n.
Lassen
R.R. Station, Constantia, California. Lassen County.
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
UC507005
Achnatherum lemmonii
George A. Fisher and Irwin H. Johnson
F- 198
Lassen
Grass Valley Lassen Forest
1696
Comment
UCD50516
Achnatherum lemmonii
Beecher Crampton
1954-7-5
2049
Lassen
Along Hwy 36, 4.5 miles west of Susanville.
1432
Comment
UCD50597
Achnatherum lemmonii
Beecher Crampton
1954-7-5
2054
Lassen
Along Hwy. 36, 4.5 miles west of Susanville.
1432
Comment
CAS-BOT-BC210742
Achnatherum nelsonii
John Thomas Howell
1976-7-20
52026
Lassen
Along Willard Creek near its confluence with Susan River, about 5 miles west of Fredonyer Pass
1432
Comment
UC1024688
Achnatherum occidentale subsp. occidentale
Leo Whitney
1933-7-15
2157
Lassen
16 mi w of upper end of Eagle Lake; Lassen National Forest, Harvey Montain
Comment
CAS-BOT-BC218615
Achnatherum occidentale subsp. pubescens
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49486
Lassen
Elysian Valley west of Janesville, Sierra Nevada
1325
Comment
UC1024810
Achnatherum occidentale subsp. pubescens
Leo Whitney
1935-6-11
3271
Lassen
Camp 10, Fruit Grower's Supply Company Lassen National Forest
Comment
UC1143048
Achnatherum occidentale subsp. pubescens
L. R. Short and J. Warren
1936-6-29
S- 462
Lassen
Burgess Spring Experimental Range Lassen National Forest
1820
Comment
UCD51169
Achnatherum occidentale subsp. pubescens
A. L. Hormay
1934-6-30
s.n.
Lassen
on Harvey Mountain, Lassen National Forest.
2133
Comment
UCD51216
Achnatherum occidentale subsp. pubescens
R. Tofsrud
1947-7-1
222
Lassen
12 mi. E. of Madeline.
Comment
RSA700231
Achnatherum thurberianum
L. P. Janeway
2001-6-20
7205
Lassen
High Cascade Range. 0.6 km east of Road 111 and 1.3 km south of Road 35N60; about 11 km west of Little Valley, 3.9 km east-northeast of Coble Mountain.
1402
Comment
UC1026712
Achnatherum thurberianum
Leo Whitney
1935-6-25
3311
Lassen
13 mi w of upper end Eagle Lake; Ashurst Mountain
Comment
UC1924570
Achnatherum thurberianum
Debra Valov
2006-5-30
2006042
Lassen
Bieber off County Rd A2 c. 8.7 km east of Hwy 299
1291
Comment
UCD32677
Achnatherum thurberianum
Beecher Crampton
1954-7-6
2082
Lassen
Lassen County, 7 miles north of Madeline, along US highway 395, roadside.
1524
Comment
UCD34873
Achnatherum thurberianum
Beecher Crampton
1964-6-27
7095
Lassen
Lassen County, ca. 5 miles S.W. of Ravendale, BLM land.
Comment
UCD51423
Achnatherum thurberianum
Beecher Crampton
1964-6-27
7091
Lassen
21 miles north of Susanville, north end of Eagle Lake, B.L.M. Bucks Bay allotment.
1676
Comment
UCD51301
Achnatherum webberi
Beecher Crampton
1954-7-6
2074
Lassen
Along US Hwy 395, 15 miles south of Ravendale.
1676
Comment
CHSC29950
Acmispon americanus var. americanus
Robin L. Ondricek
1978-6-8
51
Lassen
Murrers Upper Meadow, .6 mi E of inersection with main rd. to ELFS.
1554
Comment
CHSC91301
Acmispon americanus var. americanus
Lowell Ahart; John Dittes
2005-6-2
11970 A
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
JEPS127283
Acmispon americanus var. americanus
Lowell Ahart, John Dittes
2016-7-13
21119
Lassen
30 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.
Comment
UC1037221
Aconitum columbianum
Leo Whitney
1934-7-23
1589
Lassen
ca. 7 - 8 mi. s.w. Eagle lake (Bridge Creek Camp near Bridge Creek); Lassen Nat'l Forest, Bridge Creek Camp
1737
Comment
CDA6765
Acroptilon repens
T. C. Fuller
1962-8-29
9486
Lassen
Road to Adin, 1 miles east of Lookout, Big Valley.
0
Comment Read comments Jun 24 2009
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
CHSC9544
Agastache parvifolia
L. E. Ray
1967-6-25
53
Lassen
Coll. ca. 2 mi. w ELBS Pellican Point.
1524
Comment
UC882898
Agastache parvifolia
Lewis S. Rose
1940-6-15
40591
Lassen
39 mi n Susanville; Grasshopper Valley
1524
Comment
POM70458
Agastache urticifolia
Marcus E. Jones
1897-6-30
s.n.
Lassen
Eagle Lake, 27 miles from Susanville
1524
Comment
UC1537574
Agastache urticifolia
Gordon H. True Jr.
1936-6-27
564
Lassen
n slope Hot Spring Mountain; n slope of Hot Spring Mountain
1828
Comment
SD52320
Agastache urticifolia
F. Stephens
1894-7-15
8553
Lassen
Comment
JEPS62630
Ageratina occidentalis
Clare B. Hardham
1969-8-28
17433
Lassen
w of Janesville; Sierra Nevada
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
JEPS107469
Agoseris glauca var. glauca
Lowell Ahart, John Dittes
2005-6-1
11849
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
1448
Comment
CHSC68840
Agoseris heterophylla
Vernon Oswald; Lowell Ahart
1997-6-24
8601
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. (20N10).
1655
Comment
CHSC91310
Agoseris heterophylla
Lowell Ahart; John Dittes
2005-6-1
11885
Lassen
Along a poor dirt road, west of Scott Road, Long Valley, about 2 1/2 miles (air) northwest of the intersection of Scott Road and Highway 70, 4.0 miles (air) northwest of Hallelujah Junction.
1438
Comment
JEPS107320
Agoseris heterophylla
Lowell Ahart, John Dittes
2005-6-1
11885
Lassen
Along a poor dirt road, west of Scott Road, Long Valley, about 2 1/2 miles (air) northwest of the intersection of Scott Road and Highway 70, 4.0 miles (air) northwest of Hallelujah Junction
1438
Comment
OBI77284
Agoseris heterophylla
Anthony Baniaga
2011-6-17
354
Lassen
Lassen NF. N side of Hog Flat Reservoir. Pegleg Mtn quad T30N R10E sec 19 NE of NE
1678
Comment
UC1924573
Agoseris heterophylla var. heterophylla
Debra Valov
2006-5-29
2006023
Lassen
Bieber off County Rd A2 c. 8.7 km east of Hwy 299
1280
Comment
JEPS93832
Agoseris parviflora
Vernon H. Oswald and Lowell Ahart
1998-6-4
9142
Lassen
south of Constantia (spur road on n side of Red Rock Road 0.6 mi e of Highway 395); Red Rock Road
1389
Comment
CAS-BOT-BC13413
Agoseris retrorsa
Louella Bass
1973-5-29
82
Lassen
Elysian Valley
1325
Comment
CHSC36467
Agoseris retrorsa
Jeffrey R. Peek
1982-6-3
28
Lassen
Ca. .6 mi W jct forest service rds 5.16 and 5.17, ca. 10 yd E 5.16 heading over Black Mtn.
Comment
CDA1692
Agropyron desertorum
G. D. Barbe
1974-8-2
1933
Lassen
Hallelujah Junction, US 395 at Hwy 70, northwest corner.
Comment
UCD32657
Agropyron spicatum
Beecher Crampton
1954-7-5
2053
Lassen
Lassen County, 4.5 miles west of Susanville, along state highway 36.
1432
Comment
UC1137133
Agrostis alba
August L. Hormay
1932-7-20
Lassen
Bogard Ranger Station Lassen National Forest, Bogard Ranger Station
Comment
POM313172
Agrostis exarata
Malcolm A. Nobs, S. Galen Smith
1949-7-21
1057
Lassen
Lassen County: Shallow marshy stream from springs, 4 miles N of Madeline
Comment
UCD39949
Agrostis exarata
A. H. Murphy
1953-6-24
HG 48
Lassen
Lassen County?: Hog Lake, James pasture.
762
Comment
CAS-BOT-BC139680
Agrostis gigantea
Clare B. Hardham
1969-8-28
17427
Lassen
Sierra Nevada. West of Janesville.
Comment
SBBG115824
Agrostis variabilis
J. T. Howell, G. H. True
1973-8-1
50234
Lassen
Diamond Range, S of Susanville
Comment
HSC63727
Aliciella leptomeria
Teresa Prendusi
1980-5-19
1134
Lassen
Saddle Rock.
1524
Comment
CHSC64799
Aliciella micromeria
Vernon H. Oswald
1995-5-24
6778
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 e side of the road ca. 0.2 mi n of the railroad.
1219
Comment
POM313032
Alisma gramineum
Malcolm A. Nobs, S. Galen Smith
1949-7-22
1074
Lassen
Along Willow Creek, Willow Creek Valley, 10 miles north of Susanville
Comment
UC978579
Alisma gramineum
Verne Grant and Irving Schneider
1947-9-6
8382
Lassen
creek midway between Eagle Lake and Susanville
Comment
UCD137906
Alisma gramineum
Malcolm A. Nobs; S. Galen Smith
1949-7-22
1074
Lassen
along Willow Creek, Willow Creek Valley, 10 miles north of Susanville.
Comment
RSA119134
Alisma plantago-aquatica
Marcus E. Jones
1897-6-24
s.n.
Lassen
10 to 15 miles west from Amedee.
1219
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
RSA32793
Allium acuminatum
A. A. Heller
1938-6-23
15196
Lassen
On an open slope east of Fredonyer Pass.
1646
Comment
UCR45852
Allium acuminatum
Thomas W. Nelson, Jane P. Nelson
1980-7-6
6026
Lassen
Ash Valley, along branch road off Adin-Madeline Road just south of bridge over Ash Creek, & c. 16 mi. SE of Adin; 2.5 mi. SE of junction with main road
1555
Comment
HSC69593
Allium campanulatum
Gary Schoolcraft
1980-7-28
340
Lassen
S of Blue Lake
2043
Comment
SEINET10472036
Allium campanulatum
Mary Merello
1993-6-27
Merello 743
Lassen
Lassen National Forest at intersection of Forest Service Road 32N15 and Hwy. 94. Open conifer woodlands, dry.
1700
Comment
UC1133790
Allium campanulatum
A. Simontacchi
1940-7-1
935
Lassen
2.6 mi ssw Puls Camp; Lassen National Forest, Halls Flat Quadrangle
Comment
CAS-BOT-BC464482
Allium campanulatum
A. H. Kramer
1937-1-1
s.n.
Lassen
Lassen National Park, near Prospect Pk.
Comment
CHSC69845
Allium lemmonii
D. W. McNeal
1983-6-5
2840
Lassen
Beside Eagle Lake Rd. (Lassen Co. Hwy. A-1) ) 0.5 mi. n. of Hwy. #36.
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
POM260464
Allium lemmonii
C. L. Hitchcock
1940-5-26
6640
Lassen
Overflow of Pitt River, 1 mile W of Bieber
Comment
UC13792
Allium lemmonii
M. S. Baker and Frank Nutting
1894-7-7
Lassen
Harvey's Ranch
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
CHSC77221
Allophyllum gilioides subsp. violaceum
G. Schoolcraft
1997-6-24
2594
Lassen
4 mi. W of Doyle on S. side of Doyle Grade Rd.
1767
Comment
UC106708
Allophyllum integrifolium
T. S. Brandegee
1892-7-2
Lassen
Susanville
Comment
CDA28189
Alopecurus aequalis
A. A. Beetle
1941-6-28
Lassen
Route 36, 10 mi west of Chester
0
Comment
CHSC112469
Alopecurus carolinianus
Lowell Ahart; John Dittes, Todd Sloat
2013-6-8
18731
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
CHSC117529
Alopecurus carolinianus
Lowell Ahart; John Dittes
2016-7-13
21142
Lassen
Scattered along the west edge of the pond, 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 southern slope of Big Valley.
1289
Comment
CHSC99293
Alopecurus geniculatus
Lowell Ahart; John Dittes
2008-6-20
14960
Lassen
About 300 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
JEPS114770
Alopecurus geniculatus
Lowell Ahart, John Dittes
2008-6-20
14960
Lassen
About 300 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
JEPS71146
Alopecurus geniculatus
Brown and Wieslander
81
Lassen
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
CDA3617
Alyssum minus var. micranthum
Vernon H. Oswald & Lowell Ahart
1998-6-4
9144
Lassen
Spur road on north side of Red Rock Road, 0.6 mile east of Highway 395, south of Constantia.
Comment
UCD114089
Alyssum simplex
W. A. Harvey
1964-6-23
s.n.
Lassen
J. E. Albaugh ranch, ca. 4 miles southwest of Adin.
Comment
JEPS117361
Amaranthus blitoides
Lowell Ahart, John Dittes
2010-8-30
17090
Lassen
North side of the road, between Elkins Lane and Walters Road, 550 feet south of Modoc County Line, about 4.3 miles (air) west of Adin, about 7.7 miles (air) northeast of Bieber, Big Valley
1274
Comment
JEPS78111
Amaranthus blitoides
Gary W. Zamzow
1972-7-18
86
Lassen
beside Highway 395, 3 mi n Hallelujah Junction
1371
Comment
UCD97198
Amaranthus blitoides
John Thomas Howell
8-9 Jul 1974
50501
Lassen
Sierra Nevada. Susanville.
1295
Comment
CHSC113078
Amaranthus californicus
Lowell Ahart; John Dittes
2013-7-22
18860
Lassen
Bottom of a dry bare drainage, 50 yards west of the road levee, about 250 yards south of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
JEPS124370
Amaranthus californicus
Lowell Ahart, John Dittes
2015-7-13
20317
Lassen
Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
Comment
UCD143900
Ambrosia acanthicarpa
Richard R. Halse
2010-8-26
8089
Lassen
along State Highway 70 at Beckwourth Pass around 4.3 miles west of its junction with US Highway 395 or 1.6 miles east of Sierra Valley.
1584
Comment
CHSC29918
Amelanchier alnifolia var. pumila
Robin L. Ondricek
1978-5-25
26
Lassen
.5 mi S of tunnel crossing on road to Eagle Lake Field Station.
1554
Comment
CHSC25302
Amelanchier pallida
Pauleen Broyles
1977-5-30
147
Lassen
Spencer Spring ca 8 km nne of Herlong. Canyon below spring.
1620
Comment
CAS-BOT-BC142540
Amelanchier utahensis
Gary Schoolcraft
1984-6-5
1203
Lassen
Upper Spencer Basin, 29-16-24
1889
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
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
SEINET10939652
Amsinckia tessellata
Billy Joe Cox, David B. Dunn
1971-6-2
Cox 2574
Lassen
3 mi S of Hallelujah Jct, on US Hwy 395, Jct of US 395 & CA 70; along roadside and in Artemesia-grassland field.
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
UC725370
Amsinckia tessellata var. tessellata
A. A. Heller
1938-6-23
15204
Lassen
just outside Johnstonville (on US Hwy #395)
Comment
RSA622142
Amsinckia tessellata var. tessellata
B. J. Cox, D. B. Dunn
1971-6-2
2574
Lassen
3 mi. S. of Hallelujah Jct., on U.S. Hwy. 395, Jct. of U.S. 395 & Calif. 70.
Comment
UCD159579
Anaphalis margaritacea
D. S. Park
2011-8-24
316
Lassen
East of Westwood. Near Goodrich Creek.
319
Comment
CAS-BOT-BC63874
Antennaria argentea
Marcus E. Jones
1897-6-25
s.n.
Lassen
Susanville
1341
Comment
SEINET2035368
Antennaria argentea
C. L. Hitchcock
1940-5-26
6616
Lassen
Lava beds ca. 12 miles north of Fall River Mills (Shasta Co.) on Fall River
1370
Comment
UC1125575
Antennaria argentea
A. Simontacchi
1940-6-23
886
Lassen
3.2 mi sw Schoonamaker Lake; Halls Flat Quad.
1920
Comment
JEPS118283
Antennaria dimorpha
Lowell Ahart, John Dittes
2011-6-20
17508
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
HSC69050
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
UCD128922
Antennaria flagellaris
G. Schoolcraft
1981-5-27
0456
Lassen
Hayden Hill.
1737
Comment
CHSC105248
Antennaria geyeri
Lowell Ahart; John Dittes
2010-7-31
16974
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
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
RSA700232
Antennaria geyeri
L. P. Janeway
2001-4-20
7206
Lassen
HIGH CASCADE RANGE: 0.6 km east of road 111 and 1.3 km south of Road 35N60, about 11 km west of ittle Valley, 3.9 km east-northeast of Coble Mountain.
1402
Comment
UC773955
Antennaria geyeri
L. R. Short and Wm. Gansberg
1936-7-3
S- 475
Lassen
Burgess Spring Experiement Range
1828
Comment
SJSU7638
Antennaria geyeri
J. W. Tilden
1960-6-27
1510
Lassen
foot of Moonlight Road in outskirts Westwood
1524
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
HSC82198
Antennaria luzuloides
Thomas W. Nelson, Jane P. Nelson
1980-7-6
6053
Lassen
Along Ash Creek at Ash Creek Campground
1494
Comment
JEPS107290
Antennaria luzuloides
Lowell Ahart, John 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
1448
Comment
RSA702449
Antennaria luzuloides
L. P. Janeway
2004-6-26
8167
Lassen
High Cascade Range. 0.6 km east-southeast of Patterson Flat along Road 33N71; Blacks Mountain Experimental Forest.
1785
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
UC891618
Antennaria luzuloides
A. A. Heller
1938-6-23
15189
Lassen
about 3 mi s, on Highway #36 Westwood
Comment
UC1951067
Antennaria luzuloides subsp. aberrans
Debra Valov
2009-4-25
2009048
Lassen
Bieber; property on south side of County A2 c. 5.4 mi east of Hwy 299
Comment
UC1523723
Antennaria rosea
Gary Schoolcraft
1982-8-10
865
Lassen
se of, along Hwy 139 Adin
1584
Comment
UC1609102
Antennaria rosea
Vernon H. Oswald and Lowell Ahart
1993-6-28
5589
Lassen
Harvey Valley Rd (33N02) 1.7 mi n Hwy 44 (e side of valley, e of Poison Lake); Grays Valley
1719
Comment
UC584289
Antennaria rosea
G. L. Stebbins Jr. and J. A. Jenkins
1937-7-10
2308
Lassen
w of, crest of range head of Stony Ridge Milford; Stony Ridge
1930
Comment
CHSC117548
Apera interrupta
Lowell Ahart; John Dittes
2016-7-13
21143
Lassen
100 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 (air) miles east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley.
1289
Comment
JEPS114859
Apera interrupta
Lowell Ahart, John Dittes
2008-6-19
14868
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
CHSC27593
Apocynum androsaemifolium
N. E. Heiken
1978-7-10
85
Lassen
Colman Lake, several mi S of Eagle L.
1962
Comment
CHSC4823
Apocynum androsaemifolium
R. Carter
1967-7-21
624
Lassen
Ca. 3 mi n of highway 395 on rd through Jonesville on e side of rd. Dramond Mountains.
Comment
CAS-BOT-BC392211
Aquilegia formosa
Marcus E. Jones
1897-6-28
s.n.
Lassen
Diamond Mt. Susanville, Perkin's Ranch
2133
Comment
CHSC1430
Aquilegia formosa
K. Chew
1954-7-9
Lassen
Along Pine Creek just below Stephens meadow.
1828
Comment
CHSC30563
Aquilegia formosa
Sori H. Shad
1970-6-26
3
Lassen
Found in Murrer, S upper Meadow in a silty soil.
1584
Comment
CHSC52772
Aquilegia formosa
George Deniso
1978-7-11
65
Lassen
ca. .75 km E of Gallatin Beach, S end of Eagle L.
1584
Comment
CHSC12479
Aquilegia formosa var. truncata
Carol Weld
1969-6-25
25
Lassen
Murrer's Meadow.
1524
Comment
CHSC4814
Aquilegia formosa var. truncata
R. Carter
1967-7-29
573
Lassen
Found in Murrer's meadow, W side where canal runs.
1584
Comment
SEINET10866232
Arabis
Billy Joe Cox, Paul Gallian
1971-6-2
Cox 2601
Lassen
Hallelujah jct intersection of u.s. 395 And state hwy 70; in open waste area adjacent to artemisia tridentata comm.
1433
Comment
NY112363
Arabis hirsuta
G. Schoolcraft
1985-7-23
1479
Lassen
1.5 miles NW of Coon Camp Springs 35-10-23.
1798.3
Comment
HSC25977
Arabis holboellii var. retrofracta
D. H. Norris, T. Nelson, S. Dowty
1971-6-22
19270
Lassen
Harvey Valley near Cone Springs
Comment
SEINET10481537
Arabis puberula
David B. Dunn, Billy Joe Cox
1971-6-2
Dunn 17764
Lassen
Approx 12 mi s of adin on state hwy 139, in basalt and clay; along edge of rd on rolling knoll, in artemesia-juniper association.
1372
Comment
JEPS53155
Arabis rectissima var. rectissima
Jos. Grinnell
1928-6-16
Lassen
Eagle Lake Lassen Peak Region
1584
Comment
NY119618
Arabis sparsiflora var. subvillosa
R. C. Rollins
1983-7-5
83228
Lassen
One mile north of Eagle Lake
Comment
UC1037287
Arceuthobium campylopodum
Leo Whitney
1934-7-15
1703
Lassen
ca 15 mi w Eagle Lake; Lassen National Forest, Crater Mtn
Comment
RSA152667
Arctostaphylos manzanita subsp. manzanita
I. L. Wiggins, Dorothy B. Wiggins
1961-6-10
16317
Lassen
2 miles E. of Plumas-Lassen County line, along California Highway 36, near Westwood.
Comment
CAS-BOT-BC45896
Arctostaphylos nevadensis
A. H. Kramer
1929-1-1
s.n
Lassen
Prospect Peak
Comment
CAS-BOT-BC45897
Arctostaphylos nevadensis
A. H. Kramer
1930-6-9
s.n
Lassen
Prospect Peak, Lassen National Park
Comment
CHSC5245
Arctostaphylos nevadensis
M. West
1946-7-12
Lassen
Eagle Lake. Silver Lake.
1981
Comment
UCD53307
Arctostaphylos patula
Beecher Crampton
1964-1-26
7080
Lassen
Ca. 35 miles NW of Susanville.
2042
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
RSA700049
Arenaria 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. 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
CHSC106087
Arenaria congesta var. congesta
Lowell Ahart; John Dittes
2010-7-31
17011
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
RSA768779
Arenaria congesta var. congesta
L. Ahart, John Dittes
2010-7-31
17011
Lassen
About 2300 feet north 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.
1511
Comment
NY342368
Arenaria congesta var. simulans
A. A. Heller
1938-6-23
15198
Lassen
East of Fredonyer Pass
1645.9
Comment
RSA313571
Arenaria congesta var. simulans
J. R. Shevock
1972-5-20
1816
Lassen
Along Hwy 395; near Ravendale.
1372
Comment
UC1924211
Arenaria congesta var. subcongesta
Debra Valov
2004-6-9
2004272
Lassen
Hwy 139 c. Mile marker 37
1650
Comment
UC8098
Arenaria congesta var. subcongesta
M. S. Baker and F. Nutting
1894-7-2
Lassen
Dixey Mts.
Comment
UC1249269
Arenaria congesta var. subcongesta
Arthur Cronquist, Arthur H. Holmgren
1959-6-17
8463
Lassen
50 m se Susanville
Comment
CAS-BOT-BC401656
Argemone munita subsp. munita
Margaret Williams; Steven Williams
1974-7-26
74 -L-11
Lassen
Area near Hallelujah Junction, west of Hwy 395 and south of Hwy 70
1493
Comment
CHSC6196
Argemone munita subsp. rotundata
M. West
1946-6-14
Lassen
Antelope Grade.
1615
Comment
RSA152609
Argemone munita subsp. rotundata
I. L. Wiggins, Dorothy B. Wiggins
1961-6-11
16352
Lassen
4.5 mi. e of Susanville
Comment
UC1136826
Arnica chamissonis
George A. Fischer and Irwin H. Johnson
1933-7-12
F 184
Lassen
(Dry Lake) Grass Valley Grass Valley, Thompson Meadow
1694
Comment
POM203853
Arnica chamissonis subsp. foliosa
J. T. Howell
1934-7-8
12512
Lassen
Harvey Valley
Comment
UC726334
Arnica cordifolia
A. A. Heller
1938-6-4
15146
Lassen
1 mi e, on State Highway #36 Fredonyer Pass
1737
Comment
CHSC27167
Arnica dealbata
J. D. Prouty
1978-7-27
30
Lassen
3.9 mi w of jct with road A-1 on n side of Merrill Flat Rd just e of Roney Corral, s of Eagle Lake.
1770
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
SD113192
Arnica mollis
Darley F. Howe
1964-8-2
3920
Lassen
East Creek, Warner Mountains, Modoc National Forest
2010
Comment
CHSC12429
Arnica nevadensis
Robert W. Severin
1969-6-21
10
Lassen
2 mi SSE E.L.B.S. between Five Points turnoffs.
1584
Comment
JEPS103219
Arnica sororia
G. Schoolcraft
1993-6-19
2298
Lassen
Ash Valley RNA between Adin and Madeline, CA.
1600
Comment
SEINET263091
Artemisia arbuscula
Jennifer Lyman
1994-4-23
4243
Lassen
Lassen County: along Highway 395, ca. 25 miles N. of Susanville.
1433
Comment
UC773844
Artemisia arbuscula subsp. arbuscula
L. R. Short
1936-9-30
S- 506
Lassen
Burgess Spring Experimental Range Lassen National Forest, Burgess Spring Experimental Range
1746
Comment
CAS-BOT-BC84828
Artemisia cana subsp. cana
Ernest C. Twisselmann
1961-7-21
6572
Lassen
Harvey Valley
1981
Comment
CAS-BOT-BC84830
Artemisia cana subsp. cana
Elmer I. Applegate
1897-6-4
853
Lassen
Madeline Plains
Comment
CHSC77186
Artemisia dracunculus
G. Schoolcraft
1999-6-29
2847
Lassen
East edge of Madeline Plains NE of Ravendale.
1627
Comment
SEINET230067
Artemisia nova
Leila M. Shultz, John S. Shultz
1985-6-23
8602
Lassen
41 miles north of Susanville on Highway 395
1433
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
SEINET263202
Artemisia nova
J. Lyman
1994-4-23
4241
Lassen
Along Highway 395, ca. 25 miles north of Susanville on grade up to BLM land
1433
Comment
CAS-BOT-BC97200
Artemisia spinescens
Elmer I. Applegate
1934-5-4
8934
Lassen
20 miles south of Ravendale, Secret Valley
Comment
CDA19747
Artemisia spinescens
D. Tillotson
1942-6-1
s.n.
Lassen
Modoc Plateau; Mud Flat.
0
Comment
UC29711
Artemisia tridentata
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3343
Lassen
Honey Lake Valley
Comment
CAS-BOT-BC97328
Artemisia tridentata subsp. tridentata
L. S. Smith
1918-8-11
1026
Lassen
Modoc National Forest, Camp One
2529
Comment
JEPS37040
Artemisia tridentata subsp. vaseyana
L. S. Smith
1918-8-11
1026
Lassen
nw of Lost Lake and Buchorn (Hat) Mt.; Modoc National Forest, Camp One
2468
Comment
HSC3295
Asclepias cordifolia
H. E. Parks, S. T. Parks
Jun 1928
226
Lassen
Lassen National Park, Drakesbad
1982
Comment
UC1123518
Asclepias cordifolia
C. W. Hanks
1934-9-26
93
Lassen
near Plumas National Forest (w side of valley); Sierraville Quadrangle, Long Valley
Comment
JEPS123853
Asclepias fascicularis
Lowell Ahart, John Dittes
2015-7-14
20325
Lassen
About 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
Comment
SEINET178457
Asclepias fascicularis
Unknown
1897-6-25
Lassen
Susanville
1341
Comment
CHSC92938
Aster campestris
L. P. Janeway
2005-7-31
8514
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
POM261533
Aster eatonii
Alice Eastwood
1912-8-22
1918
Lassen
Battle Creek Meadows, Lassen Butte Region
Comment
CHSC4429
Astragalus
K. R. Stern
1967-6-30
2453
Lassen
West Central side of Eagle Lake.
1554
Comment
UCD105584
Astragalus
Grady L. Webster
1989-5-13
7710
Lassen
2.5 miles E of Beckworth Pass.
1493
Comment
UCD105587
Astragalus
Grady L. Webster
1989-5-13
7720
Lassen
2.5 miles E of Beckworth Pass.
1493
Comment
POM204051
Astragalus accidens var. hendersonii
J. T. Howell
1934-6-10
11875
Lassen
Janesville
Comment
CAS-BOT-BC177435
Astragalus andersonii
Margaret Williams
1974-8-4
74 -L-83
Lassen
Near Hallelujah Junction, west of Hwy 395 and south of Hwy 70
1493
Comment
CAS-BOT-BC177439
Astragalus andersonii
Margaret Williams
1974-7-27
74 -L-55
Lassen
Near Hallelujah Junction, west of Hwy 395 and south of Hwy 70
1493
Comment
CHSC116920
Astragalus andersonii
J. P. Bergmann
2011-4-30
Lassen
Fort Sage OHV Recreation Area.
1450
Comment
CHSC7674
Astragalus andersonii
Beverly J. Wise
1969-5-9
51
Lassen
10.2 mi. West of Susanville. North side of junction with hwy 36 on Fredonyer campground rd. Forest service rd. no. 8246.
1615
Comment
NY791372
Astragalus andersonii
N. H. Holmgren
1970-6-25
4379
Lassen
North end of Petersen Mountain, near US 395, 8 miles north of junction with Calif. 70 (Hallelujah Junction).
1524.0
Comment
NY791377
Astragalus andersonii
W. W. Eggleston
1911-7-8
7188
Lassen
Vicinity of Doyle Station
1290
Comment
CDA26598
Astragalus andersonii
T. C. Fuller
1965-6-3
13608
Lassen
Driveway to the cemetery, Janesville.
0
Comment
SEINET8358141
Astragalus anxius
Unknown
1991-7-16
6108
Lassen
Ash Valley ca 25 km W of Madeline, along Ash Valley Rd.
1550
Comment
NY797391
Astragalus canadensis var. brevidens
G. Schoolcraft
1989-6-19
1920
Lassen
Along north shore of Eagle Lake
1554.5
Comment
POM26215
Astragalus canadensis var. brevidens
R. M. Austin
1883-09
42
Lassen
Madaline Plains
Comment
CAS-BOT-BC177847
Astragalus curvicarpus var. curvicarpus
Ira L. Wiggins; Dorothy B. Wiggins
1961-6-11
16331
Lassen
13.5 mi. E of Susanville
Comment
SEINET5325006
Astragalus curvicarpus var. curvicarpus
G. Schoolcraft
1993-6-10
2286
Lassen
Along US Highway 395 near road to Clark Ranch.
1280
Comment
CAS-BOT-BC182954
Astragalus filipes
Peter H. Raven; Otto T. Solbrig
1958-6-17
13290
Lassen
Along United States Highway 395, 0.4 miles south of Ravendale
Comment
CHSC106082
Astragalus filipes
Lowell Ahart; John Dittes
2010-7-31
16976
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
HSC100805
Astragalus filipes
Lowell Ahart, John Dittes
2010-7-31
16976
Lassen
100 yd. NE of where the road crosses Hunsinger Draw, 1.9 (air) mi. NW of Moll Reservoir, 2.8 (air) mi. W of Ash Valley, and 8.4 (air) mi. SE of Adin.
1521
Comment
NY658493
Astragalus filipes
G. H. True Jr.
1938-7-9
911
Lassen
Madeline Plains near Termo
1524.0
Comment
NY813074
Astragalus filipes
R. W. Spellenberg
1996-6-13
12334
Lassen
26 km south of Doyle on U.S. Highway 395
1430
Comment
RSA768028
Astragalus filipes
L. Ahart, John Dittes
2010-7-31
16976
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
UCR18728
Astragalus filipes
Frank C. Vasek
1975-7-11
750711- 01
Lassen
Modoc Plateau, [Said Valley] State Hwy 139, 3.5 mi north of Grasshopper Valley at junction with Termo Rd.
1650
Comment
CAS-BOT-BC182953
Astragalus filipes
John Thomas Howell
1934-6-10
11909
Lassen
Madeline Plains near Termo
Comment
RSA111070
Astragalus filipes
H. D. Ripley, R. C. Barneby, F. C. Ripley Jr.
1943-6-13
5675
Lassen
South of Constantia.
1463
Comment
UC1924237
Astragalus gibbsii
Debra Valov
2004-6-8
2004253
Lassen
Bieber; off County A2 c. 8 km east of Hwy 299
1270
Comment
CAS-BOT-BC186852
Astragalus gibbsii
M. E. Jones
1897-6-24
s.n.
Lassen
10-15 miles w. of Amedee
1219
Comment
NY674269
Astragalus gibbsii
K. Morris
1973-5-25
214
Lassen
4 miles south of Susanville, on US 36
Comment
CAS-BOT-BC186914
Astragalus inversus
H. D. Ripley; R. C. Barneby
1943-6-14
5740
Lassen
Mesa W. of Susanville
1371
Comment
CHSC98246
Astragalus inversus
Allison Sanger
2003-6-25
Lassen
Halls Flat, west of Road 33N13, roughly 3 air miles north-northwest of Swains Hole and 8 miles east-northeast of Old Station.
1676
Comment
SEINET3165897
Astragalus inversus
R. W. Spellenberg
2006-6-19
13744
Lassen
along USFS access road 3.4 km E of Calif. Hwy. 139, the jct. of the road and highway 31 km SE of Modoca Co. line (just S of Adin)
1670
Comment
CHSC64785
Astragalus iodanthus var. diaphanoides
Vernon H. Oswald
1995-5-24
6763
Lassen
Modoc Plateau. Wendel Rd. (Lassen 320) 3.3 mi e of Amedee Rd. at Wendel.
1249
Comment
POM45791
Astragalus lemmonii
Marcus E. Jones
1897-6-19
s.n.
Lassen
Chat.
1616
Comment
CHSC110304
Astragalus lentiginosus var. floribundus
L. P. Janeway; B. Castro
2012-7-2
10929
Lassen
Modoc Plateau. East side of Skedaddle Mountains; along Skedaddle Road 19.6 road km north of the Wendel Road; about 1.0 km south of Skedaddle Creek; at the Nevada state line.
1542
Comment
UC1483822
Astragalus lentiginosus var. floribundus
G. Schoolcraft
1980-5-7
222
Lassen
on n shore Honey Lake Island; n shore Honey Lake Island
1219
Comment
UC13403
Astragalus lentiginosus var. lentiginosus
M. S. Baker and Frank Nutting
1894-7-5
Lassen
Dixey Valley
Comment
HSC63126
Astragalus malacus
Teresa Prendusi
1980-4-28
1101
Lassen
Rice Canyon
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
CAS-BOT-BC192846
Astragalus pulsiferae
Noel H. Holmgren; Patricia K. Holmgren
1980-7-4
9500
Lassen
Observation Peak, south side of mountain, 18 km (11 mi) airline distance east of Ravendale
1890
Comment
UC13449
Astragalus pulsiferae
J. Burtt Davy
Jun 17 1897-Jun 24 1897
Lassen
Chat Long Valley, Honey Lake Valley, Chat (Long Valley, Honey Lake Valley)
Comment
NY694121
Astragalus pulsiferae var. coronensis
S. L. Welsh
2001-6-14
28150
Lassen
East of Highway 395, road to Rams Horn Spring campground
1540
Comment
CAS-BOT-BC192855
Astragalus pulsiferae var. pulsiferae
G. Schoolcraft
1989-6-7
1906
Lassen
East slope of Shaffer Mtn.
Comment
SD71380
Astragalus pulsiferae var. pulsiferae
John Thomas Howell
1955-7-19
30818
Lassen
The Sierra Nevada, Sagebrush flat, east side of Beckwourth Pass
1493
Comment
UCD105194
Astragalus pulsiferae var. pulsiferae
John Thomas Howell
1955-7-19
30818
Lassen
East side of Bechwourth Pass, Sierra Nevada.
1493
Comment
SEINET5324195
Astragalus pulsiferae var. pulsiferae
A. A. Heller, P. B. Kennedy
1907-7-1
8674
Lassen
Near Old Chat
Comment
SEINET5324574
Astragalus pulsiferae var. pulsiferae
M. J. Williams
1974-7-26
74 -L-16
Lassen
Burn area, W of Hwy 395 and Near Hwy 70.
1494
Comment
CHSC98310
Astragalus pulsiferae var. suksdorfii
R. Ondricek-Fallscheer
1999-7-14
206
Lassen
6 1/2 air mi W of Crater Mtn. and 7 1/2 air mi ENE of Lassen Volcanic Natl. Park; 0.3 road mi S of Hwy 44 on USFS Rd. 32N60.
1706
Comment
UC13450
Astragalus pulsiferae var. suksdorfii
M. S. Baker and Frank Nutting
1894-7-12
Lassen
Pine Creek
Comment
HSC28311
Astragalus purshii
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19269
Lassen
Harvey Valley near Cone Springs
Comment
SJSU8415
Astragalus purshii
J. W. Tilden
1960-6-27
1498
Lassen
outskirts of Westwood, foot of Moonlight Rd
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
CAS-BOT-BC194097
Astragalus purshii var. purshii
Alice Eastwood; John Thomas Howell
1940-6-16
8352
Lassen
Omira
Comment
CAS-BOT-BC194099
Astragalus purshii var. purshii
John Thomas Howell
1934-6-10
11876
Lassen
Janesville
Comment
CHSC48504
Astragalus purshii var. purshii
Vernon Oswald
1986-5-28
2052
Lassen
Rd. 201 on the west side of Eagle Lake, 22.1 mi n of Hwy 36, 9.2 mi n of Gallatin Beach Road.
1615
Comment
CAS-BOT-BC192973
Astragalus purshii var. tinctus
Doris Kildale Gillespie
1930-5-13
9376
Lassen
Between Susanville and Janesville
Comment
UC1137765
Astragalus purshii var. tinctus
August L. Hormay
1934-5-9
Lassen
Lassen National Forest , Black's Mt Headquarters (Black's Mt. Headquarters)
1706
Comment
CAS-BOT-BC192974
Astragalus purshii var. tinctus
Doris Kildale Gillespie
1930-5-15
9386
Lassen
5 miles west of Susanville
Comment
RSA60318
Astragalus purshii var. tinctus
E. K. Balls
1950-5-9
15955
Lassen
0.5 mi. south of Modoc Co. Line, Hwy 395.
1220
Comment
JEPS103211
Astragalus whitneyi var. confusus
G. Schoolcraft
1985-5-22
1396
Lassen
Along A2 about 5 miles south of Adin, CA.
1341
Comment
CHSC92759
Astragalus whitneyi var. siskiyouensis
L. P. Janeway
2005-7-4
8469
Lassen
High Cascade Range. Ridge top north above Long Valley; 0.4 km west of Road 34N41.
1752
Comment
CAS-BOT-BC199134
Astragalus whitneyi var. siskiyouensis
H. D. Ripley; R. C. Barneby
1943-6-14
5747
Lassen
Hidden Valley E of Susanville
1584
Comment
CAS-BOT-BC198723
Astragalus whitneyi var. whitneyi
Noel H. Holmgren; Patricia K. Holmgren
1980-7-4
9514
Lassen
Observation Peak, south side of mountain, 18 km airline distance east of Ravendale
2194
Comment
CAS-BOT-BC198724
Astragalus whitneyi var. whitneyi
G. Schoolcraft
1989-6-19
1915
Lassen
Ash Valley RNA/ACEC
1554
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
CAS-BOT-BC66017
Athyrium filix-femina var. cyclosorum
B. C. Cain
1925-8-24
120
Lassen
1 mile below Drakesbad, Mt. Lassen Nat. Park
Comment
RSA0027358
Atriplex
John F. Emmel
1994-7-18
1333
Lassen
South edge of Honey Lake Valley. At northwest base of Turtle Mountain, at north end Fort Sage Mtns.
1305
Comment
CHSC36483
Atriplex confertifolia
Margaret E. Halloran
1982-6-2
6
Lassen
Ravendale Rd e of Horse Lake.
Comment
CAS-BOT-BC172657
Atriplex gardneri var. falcata
Gary Schoolcraft
1983-6-20
1012
Lassen
Mud Flat
1341
Comment
POM102968
Atriplex gardneri var. falcata
Marcus E. Jones
1897-6-24
s.n.
Lassen
10 to 15 miles west from Amedee.
1219
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
CDA2954
Atriplex hortensis
E. E. Fix
1962-5-15
Lassen
Pete Mendiboure property, Madeline.
0
Comment
CHSC63702
Atriplex rosea
Vernon H. Oswald
1994-9-6
6468
Lassen
Willow Creek Wildlife Area on Hwy. 139, ca. 10 mi (air) N of Susanville. Common in the parking lot and along the levee road on the N side of the creek.
1490
Comment
UC1136349
Atriplex truncata
E. Sawyer
1935-6-27
217
Lassen
Long Valley Sierraville Quad., Long Valley
Comment
UC1035992
Balsamorhiza
Helen K. Sharsmith
1955-6-22
4500
Lassen
5 mi beyond, on road to Likely Bue Lake; Warner Mountains, Modoc National Forest
1767
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
UC1035988
Balsamorhiza hookeri
Helen K. Sharsmith
1955-6-22
4501
Lassen
5 miles beyond Blue Lake on road to Likely. Warner Mountains, Modoc National Forest
Comment
OBI48169
Balsamorhiza hookeri
Rhonda Riggins
1989-4-27
1635
Lassen
US 395, 8.4 mi N Litchfield, 26.6 mi S Ravendale
1311
Comment
HSC100313
Balsamorhiza hookeri var. hirsuta
Chris Boever, Ed Lutz and Wendi Lutz
2010-7-7
370102
Lassen
On Co. Rd. 1, S from Cedarville, take gravel rd. 15 mi. to Tuledad Canyon Road.
1823
Comment Read comments May 1 2020
CHSC67158
Balsamorhiza hookeri var. lanata
James D. Jokerst
1994-5-2
4040
Lassen
N of Wendel, E of Hwy 395 and railroad, S end of Secret Valley.
Comment
SEINET10534911
Balsamorhiza incana
Billy Joe Cox
1971-6-2
Cox 3102
Lassen
4 mi. S of Adin along CA Hwy. 139 in basalt-clay; valley floor in Artemisia.
1341
Comment
SEINET10617205
Balsamorhiza incana
Billy Joe Cox
1971-6-2
Cox 2985
Lassen
Approx. 12 mi. S of Adin on CA Hwy. 139, in basalt & clay; along edge of road on rolling knoll, in Artemisia-Juniper assoc.
1372
Comment
CAS-BOT-BC106460
Balsamorhiza sagittata
Helen K. Sharsmith
1955-6-22
4500
Lassen
Five miles beyond Blue Lake on road to Likely; Warner Mountains - Modoc National Forest
1767
Comment
CAS-BOT-BC16435
Barbarea orthoceras
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49464
Lassen
Sierra Nevada. Elysian Valley, west of Janesville.
1325
Comment
HSC26602
Barbarea orthoceras
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19166
Lassen
3 mi. N of Westwood
Comment
JEPS28469
Barbarea orthoceras
George W. Gillett
1957-7-21
868
Lassen
300 yds n of trail summit Juniper Lake - Cameron Meadow trail; Lassen Volcanic National Park
2118
Comment
RSA79262
Bassia hyssopifolia
E. K. Balls
1952-10-10
18137
Lassen
0.7 miles E of Standish, Hwy 395, between Susanville and Alturas.
1250
Comment
SD52270
Beckmannia syzigachne
F. Stephens
1894-8-11
11766
Lassen
Comment
UCD56798
Beckmannia syzigachne
A. A. Beetle
1941-6-28
2813
Lassen
6 miles south of Ravendale. Lower slopes of Observation Peak.
Comment
CHSC110167
Berberis aquifolium var. aquifolium
V. Lockie
2010-5-1
Lassen
Location: Just off of Highway 139, east side of road, approx. 8.25 miles NE of Susanville, CA on Antelope Mountain.
1630
Comment
CDA20580
Berteroa incana
C. Battis
2005-8-2
s.n.
Lassen
Modoc Plateau; Anderson Ranch (southern Lassen County).
1478
Comment Read comments Aug 25 2008
CHSC29876
Berula erecta
Robin L. Ondericek
1978-8-8
119
Lassen
In water above the dam at Murrers Upper Meadow.
1548
Comment
UC1191930
Berula erecta
Malcolm A. Nobs, S. Galen Smith
1949-8-20
1487 a
Lassen
1 mi s of Doyle (Long Creek); Long Creek
Comment
HSC95181
Betula glandulosa
Gordon Leppig
1998-7-12
957
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
HSC95266
Bidens cernua
Gordon Leppig
1998-8-17
1047
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
HSC95769
Bidens cernua
Gordon Leppig, J. Cromwell
1997-7-27
616
Lassen
Modoc National Forest, Blue Lake Ranch.
1970
Comment
UC1542915
Bidens cernua
G. Schoolcraft
1987-9-1
5380
Lassen
3.5 mi w of Madeline (along Ash Valley Road); Ash Valley Road
1639
Comment
CAS-BOT-BC413084
Bistorta bistortoides
George W. Gillett
1957-7-22
882
Lassen
Lassen Volcanic National Park. Snag Lake. Campsite near south end of lake
1850
Comment
CAS-BOT-BC128044
Blepharipappus scaber
John Thomas Howell
1934-6-10
11894
Lassen
Horse Lake
Comment
CHSC99132
Blepharipappus scaber
Lowell Ahart; John Dittes
2008-6-19
14876
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
RSA164426
Blepharipappus scaber
Clare B. Hardham
1962-6-16
7451
Lassen
Gold Run Creek south of Susanville.
Comment
UC194505
Blepharipappus scaber
unknown
1878-4-1
Lassen
Madeline Plains
Comment
CAS-BOT-BC128038
Blepharipappus scaber
C. L. Hitchcock
1940-5-26
6612
Lassen
lava beds ca. 12 miles north of Fall River Mills on Fall River
1371
Comment
RSA152683
Blepharipappus scaber
I. L. Wiggins, Dorothy Wiggins
1961-6-11
16355
Lassen
Roadside east of Eagle Lake, 2 miles north of Susanville.
Comment
SEINET10757900
Blepharipappus scaber
Billy Joe Cox
1971-6-2
Cox 2984
Lassen
Appox. 12 mi. S of Adin on CA. Hwy. 139, in basalt & clay; along edge of road on rolling knoll, in Artemisia-Juniper assoc.
1372
Comment
CAS-BOT-BC14091
Boechera pauciflora
John Thomas Howell; Gordon H. True
1973-7-31
50038
Lassen
Sierra Nevada. Diamond Range. On road from Janesville to Thompson Peak.
1737
Comment
CHSC40529
Boechera pauciflora
J. D. Jokerst
1983-5-30
1798
Lassen
Along the SW side of the road to Knox Mt. ca 1 mile north of its junction with the road that connects Aden and Madeline.
Comment
CAS-BOT-BC14294
Boechera platysperma
John Thomas Howell; Gordon H. True
1973-7-31
50040
Lassen
Sierra Nevada. Diamond Range. On road from Janesville to Thompson Peak.
1737
Comment
CHSC101060
Boechera puberula
John Dittes
2008-5-22
1532
Lassen
Modoc Plateau; ca. 15.3 air miles southeast of Adin, ca. 3.4 air miles east of Hayden Hill, ca 350 feet north by northeast of intersection of Hwy 139 and FS Road 36N02; open, volcanic outcrop on northeast side of Willow Creek.
485
Comment
JEPS100335
Boechera puberula
Dean W. Taylor
2001-7-19
17841
Lassen
Diamond Mountains, ridgecrest ca. 1 air mile South of Doyle Grade
2072
Comment
CAS-BOT-BC14515
Boechera puberula
Pauleen Broyles
1977-5-30
143
Lassen
Spencer Basin ca. 8 km. north of Herlong.
1770
Comment
CAS-BOT-BC14711
Boechera repanda
John Thomas Howell; Gordon H. True
1973-7-31
50062
Lassen
Sierra Nevada. On road from Janesville to Thompson Peak, Diamond Range.
1783
Comment
CAS-BOT-BC25508
Boechera retrofracta
Reed Clark Rollins; Kathryn W. Rollins
1981-5-31
81176
Lassen
Just north of Eagle Lake.
Comment
CHSC91294
Boechera retrofracta
Lowell Ahart; John Dittes
2005-6-2
11926
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
CHSC66380
Boechera sparsiflora
Vernon H. Oswald; Lowell Ahart
1996-6-17
7774
Lassen
Modoc Plateau. Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville. At the bridge spanning the Susan River on the N side of Hwy. 36.
1432
Comment
CAS-BOT-BC25877
Boechera subpinnatifida
John Thomas Howell
1934-6-10
11861
Lassen
Honey Lake Valley, 37 miles south of Susanville.
1219
Comment
UC506904
Boechera suffrutescens
George A. Fischer and Irwin H. Johnson
1933-7-14
F- 273
Lassen
Lassen Forest
1722
Comment
CAS-BOT-BC25935
Boechera suffrutescens
Blanche Clear
1940-7-25
s.n.
Lassen
Volcanic Park. Cinder Cone.
Comment
SEINET10453123
Boisduvalia densiflora
Mary Susan Taylor
1982-8-19
Taylor 5032
Lassen
T27N R14E ne sec 36. Milford quad. Along dirt rd 326, ca. 0.5 mi e of its jct with Milford Grade, ca. 1 air mi se of Milford. In ditch on roadside; 4300 ft.
1310
Comment
RSA166295
Boisduvalia glabella
Peter H. Raven, Otto T. Solbrig
1958-6-17
13289
Lassen
U. S. Highway 395, 1.8 miles south of Ravendale.
Comment
JEPS103163
Bolboschoenus maritimus
B. Corbin and D. Armentrout
2002-9-4
1098
Lassen
Biscar Reservoir, upper pond.
1357
Comment
CHSC76305
Bolboschoenus maritimus subsp. paludosus
Lowell Ahart; Vernon H. Oswald
1999-9-13
8221
Lassen
On the edge of a flooded field, just south 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
HSC16160
Brasenia schreberi
Fred J. Kindel
1955-7-14
Lassen
Mt. Meadows Reservoir
Comment
CAS-BOT-BC127868
Brickellia greenei
Clare B. Hardham
1969-8-28
17430 A
Lassen
Granitic slope west of Janesville
Comment
UC1134039
Brodiaea coronaria subsp. coronaria
A. Simontacchi
1940-6-15
871
Lassen
6.4 mi wnw Cone Mtn.; Lassen National Forest, Halls Flat
1767
Comment
CHSC30560
Bromus briziformis
Sori H. Shad
1970-7-1
10
Lassen
4 miles N.E. of Hiway 139.
1524
Comment Read comments Jun 19 2008
CHSC64814
Bromus briziformis
Vernon H. Oswald
1995-5-31
6799
Lassen
Modoc Plateau. Smoke Creek Ranch Rd. 0.4 mi e of Hwy. 395, between Litchfield and Ravendale.
1383
Comment
CAS-BOT-BC149585
Bromus carinatus var. carinatus
Marcus E. Jones
1897-6-26
s.n.
Lassen
Susanville. Perkin's Ranch.
1463
Comment
UCD59087
Bromus carinatus var. marginatus
L. Whitney
1933-8-1
s.n.
Lassen
Harvey Mountain. Lassen Forest.
1828
Comment
CAS-BOT-BC155939
Bromus commutatus
A. A. Beetle
1941-6-28
2817
Lassen
6 miles south of Ravendale, lower slopes of Observation Peak.
Comment
CHSC75564
Bromus commutatus
Vernon H. Oswald; Lowell Ahart
1999-6-9
9750
Lassen
Northeast of Susanville on County Rd. 216 at Biscar Wildlife Management Area. Along a drainage below the dam of the reservoir.
1353
Comment
HSC22359
Bromus commutatus
D. E. Anderson
1969-7-5
4991
Lassen
Freedonyer Pass, 15 mi. W of Susanville
1752
Comment
UCD32660
Bromus commutatus
Beecher Crampton
1954-7-5
2056
Lassen
Lassen County, 4.5 miles west of Susanville, along state highway 36.
1432
Comment
UCR119122
Bromus hordeaceus
Beecher Crampton
1954-7-5
2067
Lassen
Modoc Plateau, 5 miles west of Susanville.
1448
Comment
UC70688
Bromus inermis subsp. inermis
J. Burtt Davy
Jun 17 1897-Jun 24 1897
Lassen
Honey Lake Valley
Comment
CDA1827
Bromus japonicus
A. A. Beetle
1941-6-28
2809
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
CHSC99519
Bromus japonicus
Lowell Ahart; John Dittes
2008-6-19
14875
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
UCD32672
Bromus japonicus
Beecher Crampton
1954-7-6
2076
Lassen
Lassen County, 15 miles south of Ravendale, along US highway 395.
1676
Comment
CAS-BOT-BC162182
Bromus orcuttianus
John Thomas Howell; Gordon H. True
1973-8-1
50180
Lassen
Sierra Nevada. Gold Run Creek road south of Susanville, Diamond Range.
1584
Comment
UC506916
Bromus orcuttianus
George A. Fischer, Irwin H. Johnson
1933-7-14
F 261
Lassen
Lassen National Forest
1783
Comment
CAS-BOT-BC161420
Bromus tectorum
Margaret Williams; Steven Williams
1974-7-26
74 -L-2
Lassen
Sierra Nevada. Near Hallelujah Junction, west of Highway 395 and south of Highway 70.
1493
Comment
CHSC112781
Bromus tectorum
Lowell Ahart; John Dittes, Todd Sloat
2013-6-8
18751
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
CHSC36476
Bromus tectorum
Margaret E. Halloran
1982-6-6
13
Lassen
N of Eagle Lake Field Station on a point directly e of Pelican Pt.
Comment
HSC9348
Bromus tectorum
C. S. Chavez
1965-5-1
60
Lassen
20 mi. N of Susanville on Hwy. 395.
1220
Comment
SEINET4564916
Bromus tectorum
J. Young
1982-6-7
s.n.
Lassen
Redlands, northeast Lassen Co.
1676
Comment
UCD59773
Bromus tectorum var. glabratus
L. Whitney
1933-8-1
s.n.
Lassen
Black's Lake.
1706
Comment
CAS-BOT-BC80346
Calocedrus decurrens
John Thomas Howell
1976-7-19
51964
Lassen
on Gold Run Creek southwest of Susanville
1386
Comment
CAS-BOT-BC80347
Calocedrus decurrens
Ralph K. Gierisch
1968-7-12
3357
Lassen
Lassen Forest, Hwy 36 1 mile east of Fredonyer Pass
1706
Comment
CHSC4778
Calochortus leichtlinii
R. Carter
1967-6-27
552
Lassen
Ca. 10 yds. Off N side of Rd., 1.75 mi W of Eagle Lake Biology Station.
1584
Comment
HSC23523
Calochortus leichtlinii
R. Carter
1967-6-27
552
Lassen
10 yds. off N side of rd., 1.75 mi. W of Eagle Lake Biology Station
1585
Comment
CHSC30571
Calyptridium umbellatum
Sori H Shad
1970-6-25
32
Lassen
Found E. 2 mile past Murrer's Meadow on N. side of road in rocky soil.
1524
Comment
CHSC34600
Calyptridium umbellatum
Cindy Prouty
1978-7-10
17
Lassen
Colman L. area, SE of Eagel L.
1962
Comment
CHSC6233
Calyptridium umbellatum
L. Harman
1946-6-23
Lassen
Roop mountain.
2133
Comment
UC1136685
Calyptridium umbellatum
A. Simontacchi
1940-5-17
733
Lassen
5.7 mi ssw of Patterson Mountain (Lassen National Forest); Lassen National Forest
1706
Comment
UC1523751
Calyptridium umbellatum
G. Schoolcraft
1981-5-5
374
Lassen
Ash Valley
1548
Comment
SD52147
Calyptridium umbellatum
Unknown
1894-7-2
Lassen
Robin's Creek
1370
Comment
SEINET194898
Calyptridium umbellatum
A. A. Heller
1938-6-22
15139
Lassen
1 mi E of Westwood along St Hwy 36
1524
Comment
UC773930
Calystegia occidentalis subsp. occidentalis
L. R. Short and Wm. Gansberg
1936-7-3
S- 469
Lassen
Lassen Forest , Lassen <National> Forest (Burgess Spring Experiment Range)
1848
Comment
SEINET230279
Calystegia polymorpha
Noel H. Holmgren, Patricia K. Holmgren
1980-7-9
9581
Lassen
Surprise Valley 23.7 km south of Fort Bidwell
1400
Comment
SEINET10533674
Camassia leichtlinii subsp. suksdorfii
Katherine L. Morris
1973-5-25
Morris 251
Lassen
27.7 mils nw of the jct. Of hwy. 36 And 44 on hwy. 44, At robber's spring, in An open meadow on one side of the hyw wirh yellow pine, white fir and open on The other side
Comment
RSA32023
Camassia quamash subsp. breviflora
A. A. Heller
1938-6-4
15140
Lassen
2 miles south of Westwood
1494
Comment
CHSC66238
Camelina microcarpa
Vernon H. Oswald; Lowell Ahart
1996-6-24
7881
Lassen
Modoc Plateau. Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake. At the NE corner of the meadow (ca. 0.1 mi E of where Papoose Creek leaves the N end of the meadow).
1636
Comment
SBBG70392
Camelina sativa subsp. sativa
H. and M. Dearing
1939-6-6
3564
Lassen
Bieber
Comment
RSA339990
Camissonia andina
Noel Holmgren, Patricia K. Holmgren
1980-7-5
9521
Lassen
Lassen County: upper Smoke Creek drainage, 20.4km (12.7miles) from Hwy 395 via Rye Patch Canyon, 24km (15miles) airline distance SE of Ravendale
1585
Comment
NY850976
Camissonia boothii subsp. alyssoides
W. W. Eggleston
1911-7-7
7176
Lassen
Secret Valley
1330
Comment
SEINET3282785
Camissonia boothii subsp. alyssoides
Marcus E. Jones
1897-6-23
Lassen
Amedee.
1219
Comment
RSA136892
Camissonia claviformis subsp. cruciformis
Peter H. Raven, Otto T. Solbrig
1958-6-17
s.n.
Lassen
Along Hwy 395, 19.0 miles south of Ravendale
Comment
CAS-BOT-BC160832
Camissonia minor
Arnold Tiehm
1980-5-29
5752
Lassen
North end of Honey Lake Valley, 2 air miles NW of Wendel
1231
Comment
JEPS107466
Camissonia parvula
Lowell Ahart, John Dittes
2005-6-1
11852
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
1448
Comment
JEPS107854
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
RSA17675
Camissonia parvula
Elmer I. Applegate
1934-5-4
8930
Lassen
Secret Valley
Comment
RSA186551
Camissonia parvula
Peter H. Raven
1962-5-28
17870
Lassen
Along U.S. Highway 395, 32 miles south of Milford
Comment
CHSC71092
Camissonia pubens
Vernon H. Oswald; Lowell Ahart
1998-5-22
9136
Lassen
Fort Sage Rd. 2.3 mi north of Hackstaff Rd., ca. 3.5 mi north of Doyle. Roadside banks.
1341
Comment
NY851778
Camissonia pubens
W. W. Eggleston
1911-5-29
6741
Lassen
Vicinity of Doyle Station
1290
Comment
CAS-BOT-BC160876
Camissonia tanacetifolia subsp. tanacetifolia
R. K. Gierisch; D. H. Esplin
1969-7-18
3550
Lassen
Near Modoc National Forest. Madeline Plains
Comment
CAS-BOT-BC160866
Camissonia tanacetifolia subsp. tanacetifolia
A. R. Kruckeberg
1954-6-22
3322
Lassen
Along roadbanks, 6 miles s. of Likely on Highway 395
Comment
JEPS114631
Capsella bursa-pastoris
Lowell Ahart, John Dittes
2008-6-22
15033
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
JEPS124378
Capsella bursa-pastoris
Lowell Ahart, John Dittes
2015-7-13
20308
Lassen
Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
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
CHSC61025
Cardamine breweri var. breweri
Vernon H. Oswald; Lowell Ahart
1993-8-3
5743
Lassen
Cooper Swamp located E of Silver Lake just E of the Caribou Wilderness, ca. 13 mi (air) N of Lake Almanor. At the SW edge of the swamp.
1932
Comment
UC117814
Cardamine nuttallii var. covilleana
Brandegee
1892-7-2
Lassen
Susanville
Comment
JEPS120845
Cardamine pensylvanica
Lowell Ahart, John Dittes, Todd Sloat
2013-6-8
18729
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
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
CAS-BOT-BC18105
Carex athrostachya
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49456
Lassen
Sierra Nevada. Elysian Valley, west of Janesville.
1325
Comment
CHSC60428
Carex athrostachya
Mary Ann Showers
1992-6-13
Lassen
Lassen Volcanic National Park. Shoreline at western end of Widow Lake.
2072
Comment
CHSC89754
Carex athrostachya
L. P. Janeway
2004-6-26
8158
Lassen
High Cascade Range. At Patterson Well in Patterson Flat; Blacks Mountain Experimental Forest.
1767
Comment
UC506936
Carex athrostachya
George A. Fischer, Irwin H. Johnson
1933-7-12
F 237
Lassen
Patterson flat
1737
Comment
CDA33034
Carex barbarae
T. C. Fuller
1963-7-15
10892
Lassen
South of road to Pittsville, 5.4 miles northwest of Little Valley.
0
Comment
SEINET11309924
Carex davyi
D. E. Lepley
2012-1
1
Lassen
On the South flank of Whaleback Mt., about 3.5 air miles NNW of Christie Campground at Eagle Lake and about 500 feet from FS21 (Road 32N02), on the Pikes Point 7.5' quad. UTM (NAD83, Garmin GPSmap 60CS): 0680730 x 4498190 at the northernmost, 0680750 x 4498124 at the southernmost.
Comment
UC1748339
Carex disperma
L. P. Janeway
1999-9-5
6575
Lassen
NW corner of Upper Stephens Meadow (Upper Pine Creek near Stephens Camp); High Cascade Range
1900
Comment
SEINET10823330
Carex disperma
Vernon H. Oswald, Lowell Ahart
1995-7-24
Oswald 7145
Lassen
T31N, R7E, NW 1/4, NW 1/4, Sec 24. High Cascade Range, Red Fir Forest. Along Pine Creek on the upstream side of Forest Road 31N25, at the northwest corner of Upper Stephens Meadows, ca 3 miles north/northeast of Silver Lake, north of Lake Almanor. In wet soil of lodgepole Pine woods on a swampy meadow bordering the creek.
1905
Comment
CHSC68771
Carex douglasii
Vernon H. Oswald; Lowell Ahart
1997-5-27
8519
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
HSC48336
Carex douglasii
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19246
Lassen
2 mi. N of Westwood
Comment
HSC66737
Carex douglasii
J. P. Smith, J. O. Sawyer
1971-5-23
4664
Lassen
Along Hwy. 139, 1 mi. S of jct. with road to Thermo
Comment
JEPS107438
Carex douglasii
Lowell Ahart, John Dittes
2005-6-1
11863
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
RSA122792
Carex douglasii
G. A. Fischer, I. H. Johnson
1933-7-12
F- 234
Lassen
Patterson Flat.
1738
Comment
CDA33049
Carex douglasii
T. C. Fuller
1963-7-15
10890
Lassen
South side of road to Little Valley, 2.9 miles southeast of Pittville.
0
Comment
CAS-BOT-BC75502
Carex echinata var. ormantha
Leo Whitney
1934-8-2
1967
Lassen
Bridge Creek Camp.
1737
Comment
CAS-BOT-BC19979
Carex feta
John Thomas Howell
1974-7-10
50557
Lassen
Sierra Nevada. Elysian Valley.
1325
Comment
SEINET7485203
Carex filifolia
Barbara L. Wilson, Danna Lytjen and Nick Otting
2005-1
11494
Lassen
Blue Door Flat, seven or eight miles east of Highway 295 on county road 510
1774
Comment
CHSC68772
Carex filifolia var. erostrata
Vernon H. Oswald; Lowell Ahart
1997-5-27
8510
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
CHSC89755
Carex filifolia var. erostrata
L. P. Janeway
2004-6-26
8162
Lassen
High Cascade Range. At Patterson Well in Patterson Flat; Blacks Mountain Experimental Forest.
1767
Comment
SEINET7558593
Carex filifolia var. erostrata
L. P. Janeway
2004-6-26
8162
Lassen
High Cascade Range. At Patterson Well in Patterson Flats. Blacks Mountain Experimental Forest. Poison Lake 7.5' quad.
1767
Comment
UC1133498
Carex filifolia var. erostrata
Robert W. Gardner
1939-7-6
G- 30
Lassen
Grass Valley Halls Flat Quadrangle
Comment
SEINET7558599
Carex filifolia var. erostrata
John Thomas Howell
1934-7-6
12451
Lassen
Harvey Valley.
Comment
CAS-BOT-BC21303
Carex fracta
John Thomas Howell; Gordon H. True
1973-7-31
50047
Lassen
Sierra Nevada. On road from Janesville to Thompson Peak, Diamond Range.
1783
Comment
JEPS118164
Carex geyeri
Dean W. Taylor
2009-5-20
20601
Lassen
Widow Valley; Big Valley Mountains, logging road ca. 1 air mile NW of Brown Cabin [USGS map, site]
1478
Comment
SEINET7587564
Carex heteroneura
L. P. Janeway
2003-7-24
7915 A
Lassen
Swain Mountain 7.5' Quad, High Cascade Range, along Forest Service Road 30N14 1.1 km from Road 30N21. Small side drainage of upper Susan River 4.7 (air) km west of Clover Valley.
1932
Comment
UC1609196
Carex heteroneura
Vernon H. Oswald and 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
CHSC60435
Carex hoodii
Mary Ann Showers
1992-6-12
2517
Lassen
Lassen Volcanic National Park. Meadow enclosed by lava flow, Butte Lake.
1859
Comment
UC2031875
Carex hoodii
Nick Otting and Bruce Newhouse
2003-7-15
705
Lassen
Sierra Nevada Mountains, Diamond Mountain, 1000 feet east of summit, 7.5 air miles south-southwest of Susanville.
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
HSC103653
Carex lenticularis var. limnophila
Thomas W. Nelson, Jane Nelson
1985-8-10
8010
Lassen
Along north side of Silver Lake
1829
Comment
CAS-BOT-BC31439
Carex leporinella
Hans Leschke
1945-9-15
s.n.
Lassen
Near Twin Lakes, Mt. Lassen
Comment
CHSC65365
Carex limosa
Vernon H. Oswald; Beth Corbin, Mike Dolan
1995-8-26
7217
Lassen
Warner Mtns. Blue Lake located ca. 13 mi SE of Likeley.
1859
Comment
HSC95300
Carex limosa
Gordon Leppig, J. Cromwell
1997-7-27
610
Lassen
Modoc National Forest, Blue Lake Ranch.
1970
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
UC2031882
Carex microptera
Nick Otting and Danna Lytjen
2003-7-15
692
Lassen
Sierra Nevada Mountains, Diamond Mountain, 1500 feet southeast of summit, 7.5 air miles south-southwest of Susanville.
Comment
CHSC87113
Carex multicaulis
L. P. Janeway
2001-6-20
7207
Lassen
High Cascade Range. 0.6 km east of Road 111 and 1.3 km south of Road 35N60; about 11 km west of Little Valley, 3.9 km east-northeast of Coble Mountain.
1402
Comment
CHSC96455
Carex nebrascensis
Gordon Leppig
1998-8-17
1053
Lassen
Modoc National Forest. Blue Lake Ranch.
1970
Comment
CHSC99782
Carex nebrascensis
Lowell Ahart; John Dittes
2007-6-20
15019
Lassen
On wet soil or in shallow water on the north side of the levee, about 90 yards east of the tall poles, mountain meadow, in Big Valley, about 3.5 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber.
1260
Comment
UC2031881
Carex nebrascensis
Nick Otting and Danna Lytjen
2003-7-17
693
Lassen
Cascade Mountains, Susan River, 1/2 mile NE of Devil's Corral, 5 air miles west of Susanville.
Comment
RSA201569
Carex nebrascensis
Jack Major
1966-6-24
s.n.
Lassen
Above Blue Lake. Warner Mountains. Modoc National Forest. Northeastern Lassen County. (ca. 18 miles airline southeast of likely), California.
1905
Comment
UCD140685
Carex nebrascensis
Jack Major
1966-6-24
s.n.
Lassen
above Blue Lake, Warner Mountains, Modoc National Forest, northeastern Lassen County (ca. 18 miles airline southeast of Likely.)
1905
Comment
CHSC65364
Carex pellita
Vernon H. Oswald
1995-8-21
7209
Lassen
Warner Mtns. Blue Lake located ca. 13 mi SE of Likely.
1859
Comment
SEINET7571315
Carex petasata
L. P. Janeway
2004-6-26
8153
Lassen
Poison Lake 7.5' quad, High Cascade Range, about 1.3 km west-southwest of Patterson Flat, at junction of Roads 35N08 and 34N20, in Blacks Mountain Experimental Forest.
1750
Comment
CAS-BOT-BC119055
Carex phaeocephala
Ira L. Wiggins; Dorothy B. Wiggins
1961-6-10
16326
Lassen
Sedgy meadow along southern shore of Eagle Lake.
Comment
CHSC77250
Carex praegracilis
G. Schoolcraft
1995-5-23
2487
Lassen
Three Springs.
1554
Comment
HSC48183
Carex rossii
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19243
Lassen
2 mi. N of Westwood
Comment
UC2031874
Carex sheldonii
Nick Otting and Danna Lytjen
2003-7-21
714
Lassen
Modoc Plateau, Cedar Creek near Moon Lake, 6.25 air miles east-northeast of Madeline.
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
HSC95225
Carex simulata
Gordon Leppig
1998-8-17
1044
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
JEPS96099
Carex simulata
Vernon H. Oswald and Lowell Ahart
1996-6-17
7815
Lassen
Bizz Johnson Trail at 6.0 mi post e Devils Corral Trailhead (<trailhead> located off Hwy 36 ca 7 mi w of Susanville); Modoc Plateau
1420
Comment
SEINET6171441
Carex simulata
CLM Team
2014-7-29
NV 030 -984
Lassen
From Reno head north on 395, turn right onto Red Rock Rd. and proceed roughly 0.5-0.75 of a mile and park at dirt pull off on the right side of the road
1381
Comment
POM81203
Carex subfusca
Marcus E. Jones
1897-6-19
s.n.
Lassen
Chat
1616
Comment
CAS-BOT-BC116607
Carex subfusca
Clare B. Hardham
1971-8-22
18383
Lassen
Diamond Mountain streambed.
2133
Comment
CAS-BOT-BC116609
Carex subfusca
Hans Leschke
1954-7-5
s.n.
Lassen
Hat Lake
1965
Comment
CAS-BOT-BC116611
Carex subfusca
Hans Leschke
1954-7-5
s.n.
Lassen
Hat Lake
1965
Comment
CAS-BOT-BC116622
Carex subfusca
W. B. Cooke; V. G. Cooke
1976-10-7
53192
Lassen
Lassen Volcanic National Park, Butte Lake.
1841
Comment
CAS-BOT-BC115282
Carex utriculata
W. B. Cooke; V. G. Cooke
1976-10-7
53193
Lassen
Butte Lake, Near lake shore, Lassen Volcanic National Park.
Comment
CHSC96454
Carex vesicaria
Gordon Leppig
1998-8-17
1040
Lassen
Modoc National Forest. Blue Lake Ranch.
1970
Comment
OBI75892
Carex vesicaria
Anthony Baniaga
2011-8-17
503
Lassen
Lassen Natl Forest. Unnamed ephemeral pool, E of Silver Bowl Camp. Bogard Buttes quad. T31N R7E sec 35 SW of SE
1978
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-BC114880
Carex whitneyi
John Thomas Howell; Gordon H. True
1973-8-1
50201
Lassen
Ca 3 mi SE of Diamond Mt. E slope of Diamond Range S of Susanville.
2194
Comment
UCD123074
Castilleja
Grady L. Webster
1989-5-13
7711
Lassen
2.5 miles E of Beckworth Pass.
1493
Comment
CHSC106686
Castilleja angustifolia
B. Ignacio
2008-5-3
Lassen
Fort Sage Mountains.
1520
Comment
JEPS107789
Castilleja angustifolia
Lowell Ahart, John Dittes
2005-6-2
11941
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
1601
Comment
UC583392
Castilleja angustifolia
Elmer I. Applegate
1934-5-4
8921
Lassen
s of Secret Valley
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
CHSC106084
Castilleja applegatei subsp. pinetorum
Lowell Ahart; John Dittes
2010-7-31
17009
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
CHSC36455
Castilleja applegatei subsp. pinetorum
Susan H. Euing
1982-6-5
9
Lassen
Ca. 3 1/2 mi s of jct of forest service roads 5.16 and 5.17.
Comment
CHSC60412
Castilleja applegatei subsp. pinetorum
Mary Ann Showers
1992-6-13
2538
Lassen
Lassen Volcanic National Park. Meadow along trail from Snag Lake jct to Widow Lake.
1828
Comment
JEPS81866
Castilleja applegatei subsp. pinetorum
L. R. Heckard with J. C. Hickman, J. Bartel and A. Q. Howard
1982-4-26
5842
Lassen
About 2.5 miles west of Paynes Creek, along highway 36 to Mt. Lassen (6.5 miles northeast of Dales)
Comment
UC199398
Castilleja applegatei subsp. pinetorum
Franklin P. Nutting
Lassen
Dixie Mts.
Comment
RSA523923
Castilleja arachnoidea
Barbara J. Ertter
1988-7-25
7861
Lassen
ridge of Diamond Mts, 1.5 miles E of Diamond Peak, 10 air miles due S of Susanville.
2287
Comment
CHSC99527
Castilleja campestris subsp. campestris
Lowell Ahart; John Dittes
2008-6-20
14978
Lassen
Edge of vernal pools, 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
UC725999
Castilleja campestris subsp. campestris
A. A. Heller
1938-6-23
15218
Lassen
between Termo and Madeline (along U.S. Hwy 395)
1615
Comment
UC1924561
Castilleja lacera
Debra Valov
2006-5-29
2006033
Lassen
Bieber off County Rd A2 c. 8.7 km east of Hwy 299
1285
Comment
UC199374
Castilleja lacera
Milo S. Baker
Jul 1894
Lassen
Dixie Valley
Comment
JEPS85915
Castilleja lemmonii
L. R. Heckard with R. Bacigalupi
1980-6-12
5260
Lassen
ne of Westwood (near golf course)
1554
Comment
OBI75870
Castilleja lemmonii
Anthony Baniaga
2011-8-10
495
Lassen
Lassen Natl Forest. Barnes Flat. Swain Mtn quad. T30N R8E sec 9 SE of SE
1769
Comment
RSA46749
Castilleja linariifolia
J. T. Howell
1934-6-10
11885
Lassen
12 miles N of Susanville, on road to Horse Lake.
Comment
CAS-BOT-BC244893
Castilleja miniata
John Thomas Howell
1934-6-10
11871
Lassen
Janesville
Comment
JEPS10806
Castilleja miniata
Brown and Wieslander
1922-7-23
67
Lassen
Martin Springs; Eagle Lake
Comment
CAS-BOT-BC244894
Castilleja miniata
W. C. McCalla
1940-6-21
6284
Lassen
Little valley along Hy. 36, west of Susanville
Comment
CAS-BOT-BC240999
Castilleja pilosa
Alice Eastwood
1940-6-15
8318
Lassen
Said Valley
Comment
CAS-BOT-BC241005
Castilleja pilosa
Margaret Williams; Lyn Wise
1976-5-31
76- 22 -1
Lassen
Near Nervine Aero Service, E of Beckwourth
1524
Comment
JEPS76165
Castilleja pilosa
T. I. Chuang and Fei-Mei Chuang
1977-7-25
7658
Lassen
about 0.25 mi s Madeline (on Highway 395)
Comment
CHSC99131
Castilleja tenuis
Lowell Ahart; John Dittes
2008-6-19
14874
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
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
JEPS114693
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
UC1483853
Castilleja tenuis
G. Schoolcraft
1980-7-16
316
Lassen
near Nelson Corral Reservoir
1804
Comment
UC1609289
Castilleja tenuis
Vernon H. Oswald and Lowell Ahart
1993-6-28
5576
Lassen
0.2 mi n Highway 44 (Harvey Valley Rd. (33N02), e side of Grays Valley, e of Poison Lake); Grays Valley
1749
Comment
UC27210
Castilleja tenuis
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3369
Lassen
Adobe meadows; Honey Lake Valley
Comment
SJSU11528
Castilleja tenuis
J. W. Tilden
1960-6-27
1514
Lassen
by Moonlight Rd, 5 mi E of Westwood
1524
Comment
CAS-BOT-BC39554
Caulanthus major
G. Schoolcraft
1981-7-7
591
Lassen
Northwest of Susanville Peak.
2011
Comment
CHSC29953
Caulanthus major
Robin L. Ondricek
1978-6-8
46
Lassen
Ridge E of Lower Dry Lake.
1767
Comment
SEINET196483
Ceanothus cordulatus
C. B. Heisser
1947-7-13
s.n.
Lassen
Near Westwood
Comment
HSC26519
Ceanothus cuneatus
J. P. Smith, J. O. Sawyer
1972-5-6
5242
Lassen
Lassen National Forest, Boundary Campground on Hwy. 89 S of Burney
1067
Comment Read comments Apr 29 2013
CDA5726
Ceanothus prostratus
Gary Schoolcraft
2000-4-25
2890
Lassen
3.5 miles north of Susanville along Highway 139.
Comment
CHSC107342
Ceanothus prostratus
Lowell Ahart; John Dittes
2011-6-20
17496
Lassen
Forest floor, about 40 yards west of the stream, about 300 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
CHSC5069
Ceanothus prostratus
D. L. Stites
1967-7-1
111
Lassen
On Black Mt. 5 mi s of Eagle Lake Biology Station.
1828
Comment
RSA152665
Ceanothus prostratus
I. L. Wiggins, Dorothy B. Wiggins
1961-6-10
16317
Lassen
2 miles E. of Plumas-Lassen County line, along California Highway 36, near Westwood.
Comment
SEINET3814663
Ceanothus prostratus
R. A. Nelson
1963-9-14
7821
Lassen
Near Westwood on way to Lassen Volcanic National Park from Susanville.
Comment
UC1736108
Ceanothus prostratus var. prostratus
Dean W. Taylor
1974-7-13
4067
Lassen
Lassen National Forest, Thousand Lakes Wilderness, vicinity of Magee Pk, T33N R3E SE1/4 Sect. 27
2484
Comment
CHSC23565
Ceanothus velutinus
W. O. Baum
1971-6-28
46
Lassen
E slope of Gallatin Peak.
1950
Comment
CAS-BOT-BC52440
Ceanothus velutinus var. velutinus
Brighton C. Cain
1925-8-24
115
Lassen
Mt. Lassen Volcanic National Park 1 mi. below Drakesbad
1645
Comment
OBI4702
Cenchrus longispinus
T. C. Fuller
1965-10-13
14198
Lassen
On N side of old rd to Susanville, 1 mi W of Johnstonville
Comment
CAS-BOT-BC277001
Centaurea diffusa
T. C. Fuller
1962-8-28
9481
Lassen
E. side of Hwy 395 to Madelaine, 1.9 mi. n. of Termo
Comment
UCD130020
Centaurea diffusa
T. C. Fuller
1962-8-28
9480
Lassen
east side of Highway 395 to Madelaine, 1.6 mile north of Termo.
Comment
UCD130023
Centaurea diffusa
W. A. Harvey
1964-6-23
s.n.
Lassen
J. E. Albaugh ranch, ca. 4 miles southwest of Adin.
Comment
UCR57551
Centaurea maculosa
R. D. Goeden, Don W. Ricker
1989-8-22
890822- 8
Lassen
Hwy 395 and Herlong Access Rd
1259
Comment
CAS-BOT-BC281203
Centaurea stoebe subsp. micranthos
T. C. Fuller
1962-8-28
9472
Lassen
W side of Highway 395, 1.7 miles S of Doyle
Comment
JEPS121264
Centaurea virgata subsp. squarrosa
Lowell Ahart, John Dittes
2013-7-23
18910
Lassen
Near the summit on the N side of Hwy 299, at entrance road to quarry site, Big Valley Mountain, just E of Big Valley Summit, 2.8 air miles SW of Nubieber.
Comment
JEPS102715
Centaurium exaltatum
Vernon H. Oswald
2001-9-26
10057
Lassen
Dakin Unit of Honey Lake Wildlife Area.
1219
Comment
CHSC29883
Cerastium fontanum subsp. vulgare
Robin L. Ondricek
1978-7-15
101
Lassen
Below the dam at Murrers Upper Meadow.
1548
Comment
POM101579
Cerastium glomeratum
Marcus E. Jones
1897-6-18
s.n.
Lassen
Chat. [also Chats, a former settlement]
1524
Comment
RSA755002
Cerastium glomeratum
L. Ahart, John Dittes
2008-6-20
14966
Lassen
About 10-100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 air miles northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 air miles northeast of Bieber.
1264
Comment
SDSU8985
Cercocarpus betuloides
D. F. Howe
1961-8-4
3134
Lassen
11.5 miles east of McArthur on US 299.
1372
Comment
CHSC21174
Cercocarpus ledifolius var. ledifolius
M. S. Taylor
1974-5-4
226
Lassen
Scattered on e side of marsh, ca. 1/2 mi n of Eagle Lake Field Station, ca. 13 mi nw of Susanville.
Comment
UC452575
Cercocarpus ledifolius var. ledifolius
Mrs. R. M. Austin
1879-1
Lassen
Comment
CAS-BOT-BC276614
Chaenactis douglasii var. douglasii
Louella Bass
1978-7-11
78 -10
Lassen
Elysian Valley
1325
Comment
POM31017
Chaenactis douglasii var. douglasii
Marcus E. Jones
1897-6-25
s.n.
Lassen
Susanville.
1341
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
SEINET7450277
Chaenactis nevadensis
D. W. Kyhos
1967-9-1
67 -87
Lassen
Within 1/2 mile north of Hat Lake
Comment
UC31043
Chaenactis xantiana
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3411
Lassen
Amedee Honey Lake Valley
Comment
CAS-BOT-BC279643
Chaenactis xantiana
H. D. Ripley; R. C. Barneby
1943-6-15
5754
Lassen
N.-E. of Litchfield
1234
Comment
CAS-BOT-BC141744
Chamaebatiaria millefolium
John Thomas Howell
1934-7-9
12519
Lassen
Pine Creek Flat
Comment
UC17811
Chamaesyce serpyllifolia
M. S. Baker and Frank Nutting
1894-7-24
Lassen
Willow Creek
Comment
CHSC6188
Chamerion angustifolium subsp. circumvagum
P. Balch
1955-7-23
Lassen
Eagle Lake. Paul Bunyan road, 3 1/2 mi. from Susanville.
Comment
CHSC6213
Cheilanthes gracillima
P. Balch
1955-6-1
Lassen
Silver Lake, Eagle Lake.
1981
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
CAS-BOT-BC473049
Chenopodium desiccatum
Margaret Williams; Steven Williams
1974-7-26
74 -L-36
Lassen
Sierra Nevada. Burned area near Hallelujah Junction, W of Hwy 395 and S of Hwy 70
1493
Comment
CHSC58839
Chenopodium nitens
Vernon H. Oswald; Lowell Ahart
1992-7-16
5103
Lassen
Long Lake on the S side of Hwy. 44 between Old Station and Susanville, 1.2 mi SE of County Rd. A21.
1745
Comment Read comments Nov 1 2014
CHSC66862
Chenopodium rubrum var. humile
Vernon H. Oswald; Lowell Ahart
1996-9-10
8279
Lassen
Mountain Meadows Reservoir SW of Westwood. On the embankment of the railroad at the northwest edge of the reservoir.
1539
Comment
UC1483860
Chimaphila menziesii
G. Schoolcraft
1980-7-15
311
Lassen
on Big Valley Mt. timber sale area w. of Bieber
1798
Comment
CAS-BOT-BC39671
Chorispora tenella
William Anderson
1963-5-7
s.n.
Lassen
Milford.
Comment
CAS-BOT-BC36325
Chrysolepis sempervirens
George W. Gillett
1957-7-26
905
Lassen
Point of rocks wets of Butte Lake outlet and above trail
1844
Comment
UC1135263
Chrysolepis sempervirens
A. Simontacchi
1940-8-8
938
Lassen
4.2 mi w Harvey Mtn. Lookout; Lassen National Forest, Halls Flat Quad.
1889
Comment
UC773961
Chrysothamnus humilis
L. R. Short and J. Warren
1936-8-17
S- 495
Lassen
Burgess Spring Experiment Range Lassen Forest
1760
Comment
RSA0094567
Chrysothamnus viscidiflorus subsp. puberulus
Jim M. Andre, Tasha La Doux, Senna Andre, Elias Andre
2013-7-12
31420
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
UC1483871
Chrysothamnus viscidiflorus subsp. viscidiflorus
G. Schoolcraft
1980-10-8
357
Lassen
near turn-off to Big Spring (along Post Camp road)
1706
Comment
CAS-BOT-BC162755
Chylismia claviformis subsp. cruciformis
A. A. Heller
1938-6-23
15211
Lassen
On an extensive flat north of Balls Canyon on U.S. Highway #395
Comment
CAS-BOT-BC162757
Chylismia claviformis subsp. cruciformis
Philip A. Munz
1947-5-19
11870
Lassen
19 miles south of Ravensdale, on Highway 395
1341
Comment
RSA748313
Cichorium intybus
K. M. Meyer, A. Townesmith
2007-7-19
133
Lassen
Lassen National Forest. CA, 0.2 mi. on 29N03, off HWY 36 on pullout just past a dry creek.
1459
Comment
CHSC23554
Cirsium andersonii
W. O. Baum
1971-7-6
49
Lassen
Slope of Gallatin Peak.
1981
Comment
CDA1124
Cirsium canescens
T. C. Fuller
1966-7-22
14981
Lassen
Madeline Plains 10 mi w. of Termo, 3 mi N of paved road. E of road at E base of Dry Valley Ridge, Madelaine Plains .
Comment
CDA1129
Cirsium canescens
T. C. Fuller
1966-7-22
14981 -B
Lassen
Madeline Plains 10 mi w. of Termo, 3 mi N of paved road. E of road at E base of Dry Valley Ridge, Madelaine Plains .
Comment
RSA0070594
Cirsium cymosum
Arnold Tiehm, Raymond Evans, James Young
1984-6-7
8596
Lassen
Flats on the northwest side of Shaffer Mountain, 9 air miles north-northwest of Litchfield.
1387
Comment
SD113205
Cirsium cymosum
Darley F. Howe
1964-7-31
3947
Lassen
Near east bank of Blue Lake, Warner Mountains, Modoc National Forest.
1890
Comment
UCD20369
Cirsium cymosum
Joe DiTomaso
2002-6-5
s.n.
Lassen
about 3 miles northwest of the junction between Nevada, Modoc, and Lassen counties.
Comment
JEPS30608
Cirsium douglasii var. breweri
Peter H. Raven and Otto T. Solbrig
1958-6-17
13280
Lassen
13.1 mi s Ravendale (along U.S. Highway 395)
Comment
CHSC116356
Cirsium inamoenum
J. R. Keck Jr.; D. L. Haws
1980-7-22
PDR 330194
Lassen
Ravendale, BLM rangeland.
1625
Comment
UC91792
Cirsium occidentale var. candidissimum
T. S. Brandegee
1892-6-26
Lassen
Milford
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
CDA1528
Cirsium ochrocentrum
T. C. Fuller
1966-7-22
14983
Lassen
Madeline Plains 10 mi w. of Termo, 3 mi N of paved road. E of road at E base of Dry Valley Ridge, Madelaine Plains .
Comment
CAS-BOT-BC280428
Cirsium ochrocentrum
T. C. Fuller
1959-7-7
2737
Lassen
M. A. Mallory ranch, Richmond Road, ca. 4 mi. SE/Susanville
Comment
CAS-BOT-BC286303
Cirsium scariosum
Alice Eastwood; John Thomas Howell
1940-6-11
7961
Lassen
Eastern Fall River Valley
Comment
CAS-BOT-BC286304
Cirsium scariosum
Alice Eastwood; John Thomas Howell
1940-6-11
7961
Lassen
Eastern Fall River Valley
Comment
CHSC5203
Cirsium scariosum
P. Balch
1955-7-19
Lassen
Eagle Lake. Roadside meadow 3 1/2 mi from Antelope Lookout.
1981
Comment
UC1037323
Cirsium vulgare
Leo Whitney
1934-9-1
1888
Lassen
Fredonyer Pass Lassen National Forest, Fredonyer Pass
1706
Comment
CHSC99129
Clarkia gracilis subsp. gracilis
Lowell Ahart; John Dittes
2008-6-19
14887
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
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
UCR244103
Clarkia lassenensis
Jim Andre, G. L. Clifton
1993-6-9
19699
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
JEPS90014
Clarkia purpurea subsp. quadrivulnera
Dean Wm. Taylor with Robert A. Price
1988-6-4
9770
Lassen
6 mi e of MacArthur (Fall River Valley along Highway 299 at crossing of Frazer Creek, Pit River Watershed); Fall River Valley, Highway 299
1036
Comment
UC773910
Clarkia rhomboidea
L. R. Short, J. Warren
1936-6-23
S- 448
Lassen
Burgess Spring Experimental Range Lassen Forest
1798
Comment
RSA0080500
Claytonia lanceolata
M. S. Baker
1952-5-23
12429
Lassen
Hwy. 36; 0.5 mi. West of Predonyer Pass.
1753
Comment
JEPS120869
Claytonia rubra subsp. depressa
Lowell Ahart, John Dittes, Todd Sloat
2013-6-8
18742
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
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
UC1136745
Claytonia rubra subsp. rubra
A. Simontacchi
1940-5-13
700
Lassen
7.8 mi wsw Cone Ranch Heights; Lassen National Forest, Halls Flat Quad.
1920
Comment
SBBG12321
Claytonia rubra subsp. rubra
A. I. Richardson
1961-5-30
6
Lassen
rd S of Eagle Lake
1402
Comment
CHSC5225
Cleome platycarpa
J. B. Kimsey
1946-6-17
Lassen
Eagle Lake. Horse Lake.
1554
Comment
UC725411
Cleome platycarpa
A. A. Heller
1938-6-23
15207
Lassen
n of Mapes (on U.S. Highway 395)
1371
Comment
NY242101
Cleomella hillmanii
G. Schoolcraft
1989-5-31
1883
Lassen
3 mi. N. Wendel Rd. along Skedaddle Ranch Rd.
1463.0
Comment
RSA657118
Cleomella hillmanii
G. L. Clifton
1995-5-24
34202
Lassen
About 3/4 miles north of Calneva Lake.
1220
Comment
JEPS83689
Cleomella plocasperma
Staria S. Vanderpool and Richard Vanderpool
1986-6-8
1236 a
Lassen
0.5 mi w Wendel (on paved county road)
1196
Comment
RSA294659
Cleomella plocasperma
A. Tiehm
1980-5-29
5746
Lassen
North end of Honey Lake Valley, just N of Hot Springs 1.1 air mile NNW of Wendel.
1232
Comment
CHSC36465
Collinsia parviflora
Heffrey R. Peek
1982-6-3
26
Lassen
Ca. .9 mi w of jct of forest service roads 5.16 and 5.17 over Black Mountain. Ca. 20 yds e of 5.16.
Comment
CHSC80278
Collinsia parviflora
Jeanne Boze
1981-6-13
112
Lassen
Northeast base of Gallatin Peak.
1950
Comment
JEPS17613
Collinsia parviflora
Rimo Bacigalupi with G. Thomas Robbins
1955-7-20
5406
Lassen
4.4 mi s Patterson Ranger Station (e edge of Long Valley Meadows, s end of Warner Mtns); Warner Mts., Modoc National Forest, Long Valley Meadows
2057
Comment
JEPS95129
Collinsia parviflora
Vernon H. Oswald and Lowell Ahart
1997-5-27
8500
Lassen
North of Susanville (on Forest Rte. 38N04 (between Hwy. 139 near Willow Creek Guard Station & Coyote Flat), 0.1 mi. e. of Hwy. 139, on flood plain of small creek paralleling rd.)
1546
Comment
UC2016541
Collinsia torreyi
Richard Olmstead
1984-6-26
577
Lassen
2.5 miles east of junction of Forest Service Road and Red Rock Lookout Road (28N02).
Comment
UC1032607
Collinsia torreyi var. torreyi
A. Simontacchi
1940-6-15
864
Lassen
1.6 mi ssw of Blacks Mountain (Lassen National Forest); Lassen National Forest
1920
Comment
CHSC30572
Collomia grandiflora
Sori H. Shad
1970-7-1
33
Lassen
Found 3/4 mile past Murrer's. Meadow near edge of road.
1524
Comment
OBI77560
Collomia grandiflora
Anthony Baniaga
2011-7-5
419
Lassen
Lassen Natl Forest. E of Willard Ck. Fredonyer Pass quad T29N R10e sec 25 NE of NW
Comment
POM126992
Collomia grandiflora
Franklin P. Nutting
1894-7-12
s.n.
Lassen
Pine Creek
Comment
HSC23534
Collomia grandiflora
R. Carter
1967-7-13
585
Lassen
S side of rd. to Eagle Lake Biology Station and Willow Creek
1585
Comment
CHSC23479
Collomia tinctoria
Wayne O. Baum
1971-7-5
71 -11
Lassen
E. slope of Gallatin Peak.
1981
Comment
UC1123658
Collomia tinctoria
A. Simontacchi
1940-5-28
778
Lassen
3.2 mi wsw Patterson Mtn.; Lassen National Forest, Halls Flat Quadrangle
Comment
UC1137780
Collomia tinctoria
August L. Hormay
1934-6-30
Lassen
Harvey Mtn. Lassen Forest and Range Experiment Station/National Forest
2133
Comment
UC23854
Collomia tinctoria
M. S. Baker and Frank Nutting
1894-7-12
Lassen
Pine Creek
Comment
SEINET7127328
Convolvulus arvensis
M. J. Williams
1974-7-29
74 -L-57
Lassen
2 mi. west of Hallelujah Junction, south of Highway 70
1494
Comment
POM33286
Conyza canadensis
Marcus E. Jones
1897-6-23
s.n.
Lassen
Amedee.
1220
Comment
CHSC118478
Corydalis aurea
Allison Sanger
2015-5-28
Lassen
Lassen National Forest. Eagle Lake Ranger District. Outlet of Papoose Meadows, above rock weir blocking outlet.
1624
Comment
UC303067
Corydalis caseana subsp. caseana
Pearl Safford
Lassen
Susanville [uncertain locality]
Comment
CHSC117526
Crassula aquatica
Lowell Ahart; John Dittes
2016-7-13
21117
Lassen
Strand of the pond, near where drainage enters 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 slope of Big Valley.
1289
Comment
JEPS107790
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
UC581278
Crepis bakeri subsp. cusickii
G. L. Stebbins Jr. and J. A. Jenkins
1937-7-14
2331
Lassen
valley flat along road halfway between Bogard Ranger Station and Harney Valley
1630
Comment
CAS-BOT-BC291549
Crepis intermedia
G. L. Stebbins; J. A. Jenkins
1937-7-8
2222
Lassen
Six miles south of Ravensdale
1676
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
UC581219
Crepis intermedia
G. L. Stebbins Jr. and J. A. Jenkins
1937-7-10
2316
Lassen
sw-facing slope about a mi below summit; Black Mountain
1940
Comment
CAS-BOT-BC291547
Crepis intermedia
Margaret Williams
1974-8-4
74 -L-76
Lassen
Near Hallelujah Junction west of Hwy 395 and south of Hwy 70, Sierra Nevada
1493
Comment
UC581195
Crepis occidentalis
E. B. Babcock and G. L. Stebbins Jr.
1936-6-7
1749
Lassen
nw facing slope of ridge e Red Rock
1600
Comment
CHSC118853
Crepis occidentalis subsp. occidentalis
L. P. Janeway; B. Castro
2015-6-5
11775
Lassen
Greast Basin, Modoc Plateau. Along Tuledad Road (County Road 506) 13.0 road-km south of the junction at 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 northeasten branch of Red Rock Creek.
1695
Comment
SEINET2142793
Crepis occidentalis subsp. occidentalis
Noel H. Holmgren, Holmgren, Patricia K.
1978-6-11
8929
Lassen
upper Smoke Creek, south side of Observation Peak, 7.6 km (4.7 mi) northeast of Rye Patch Canyon summit, 18.5 km (11.5 mi) airline distance east-southeast of Ravendale
1700
Comment
POM203850
Crepis occidentalis subsp. pumila
J. T. Howell
1934-6-10
11872
Lassen
Janesville
Comment
CHSC4443
Crepis pleurocarpa
K. R. Stern
1967-6-24
2421
Lassen
Murrer Meadow Road, ca. 3 mi. E of Eagle Lake Biological Station.
1554
Comment
CHSC67080
Cressa truxillensis
Jeanne Boze
1981-6-11
106
Lassen
Outer edge of Horse Lake, 11 1/2 mil. from 139 on Horse Lake Rd.
1539
Comment
JEPS124754
Croton setiger
Laurie Hooker
1965-7-12
113
Lassen
On highway 139, 13 miles East of Susanville.
Comment
UC767881
Crypsis vaginiflora
R. F. Hoover
1940-10-10
4680
Lassen
Johnstonville
Comment
CHSC13599
Cryptantha
J. Pitts
1972-6-23
268
Lassen
Ca. 40 yds e of Shepherd's Hall, Eagle Lake Field Station.
Comment
CHSC7654
Cryptantha
Beverly J. Wise
1969-4-28
67
Lassen
10.0 mi. east of Susanville on south side of Hwy 395.
1249
Comment
UC1951064
Cryptantha
Debra Valov
2007-5-22
2007076
Lassen
Bieber, ca. 12 km east of Hwy 299 via County Rd A2.
Comment
UC526167
Cryptantha affinis
John Thomas Howell
1934-7-10
12545
Lassen
Long's Well
Comment
JEPS94987
Cryptantha ambigua
Vernon Oswald and Lowell Ahart
1997-6-24
8593
Lassen
s of Susanville (1.2 mi e of Gold Run Road (29N10), on n side of Diamond Mountain on Forest Road 29N43); Diamond Mountain, Forest Road 29N43
1685
Comment
NY1112275
Cryptantha ambigua
B. J. Ertter
1987-6-16
7199
Lassen
Skeedaddle Mountains on northeast side of Honey Lake; saddle on east side of Hot Springs Peak
2195
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
UC726048
Cryptantha ambigua
A. A. Heller
1938-6-23
15206
Lassen
e of Mapes (on U.S. Highway 395)
1371
Comment
CHSC106681
Cryptantha circumscissa
B. Ignacio
2008-5-3
Lassen
Fort Sage Mountains.
1520
Comment
CHSC4899
Cryptantha circumscissa
Bill Wilson
1967-7-8
19
Lassen
Eagle Lake Biological Station, 10 mi. N of Susanville; 200 yds. S of station.
1584
Comment
CHSC91313
Cryptantha circumscissa
Lowell Ahart; John Dittes
2005-6-1
11890
Lassen
On the north side of Scott Road, Long Valley, about 4 1/4 miles (air) north of the intersection of Scott Road and Highway 70, 5.5 miles (air) northwest of Hallelujah Junction.
1433
Comment
JEPS107310
Cryptantha circumscissa
Lowell Ahart, John Dittes
2005-6-1
11890
Lassen
On the north side of Scott Road, Long Valley, about 4 1/4 miles (air) north of the intersection of Scott Road and Highway 70, 5.5 miles (air) northwest of Hallelujah Junction
1433
Comment
CAS-BOT-BC189458
Cryptantha circumscissa var. circumscissa
Alice Eastwood; John Thomas Howell
1940-6-16
8333
Lassen
Near Susanville
Comment
UC1063944
Cryptantha echinella
H. P. Hagge
1929-9-11
24
Lassen
Logon Mtn. Eagle Lake Quad.
1828
Comment
UC1483850
Cryptantha humilis
G. Schoolcraft
1979-5-13
50
Lassen
on ridge top of Skedaddle mtns. Skedaddle Mtns.
2286
Comment
SEINET10906625
Cryptantha humilis
Paul Gallian, David B. Dunn
1971-6-2
Gallian 507
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
CHSC47980
Cryptantha intermedia
Vernon Oswald
1986-6-15
2113
Lassen
Hwy 36, 15.0 mi e of Plumas-Lassen Co. line, 3.5 mi e of Fredonyer Pass.
1508
Comment
JEPS109640
Cryptantha intermedia
Dean W. Taylor
2002-6-21
18172
Lassen
Highway 139 ca. 10 miles N of Susanville, ca. 1 mile south of the southerly end of Willow Creek Valley
1524
Comment
UCD119960
Cryptantha muricata
G. Schoolcraft
2000-6-19
2903
Lassen
West of Cold Springs Valley.
Comment
JEPS94701
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
JEPS103198
Cryptantha simulans
G. Schoolcraft
1993-6-29
2305
Lassen
Ash Valley RNA 16 miles E of Adin S of T in Co. Road
1554
Comment
CHSC27925
Cryptantha torreyana
M. S. Taylor
1974-7-10
280
Lassen
In meadow, ca. 1/2 mi e of Gallatin Beach, ca. 1/2 mi s of Eagle Lake, ca. 12 mi nw of Susanville.
1524
Comment
SEINET10497288
Cryptantha torreyana
Mary Susan Taylor
1974-1
Taylor 267
Lassen
Vicinity of Eagle Lake, ca. 13 mi NW of Susanville.
Comment
UC1134216
Cupressus bakeri
D. Dunning
1935-11-7
Lassen
2 mi E of Burney Spring
1463
Comment
JEPS47106
Cuscuta californica
Brown and Wieslander
1922-8-20
85
Lassen
Martin Springs Eagle Lake
Comment
CHSC59701
Cusickiella douglasii
Mary Meyer
1980-7-15
Lassen
1546
Comment
UC473500
Cycladenia humilis var. humilis
A. N. Kramer
1930-1
15
Lassen
Prospect Peak Lassen National Park
Comment
CHSC112187
Cymopterus terebinthinus var. californicus
Dean Wm. Taylor
2012-6-7
f 21237
Lassen
Diamond Mountains; Gold Run Road 0.3 miles North of the Crest.
1950
Comment
CHSC43469
Cynoglossum occidentale
Lowell Ahart; John Thomas Howell
1974-7-9
515
Lassen
Along the edge of Eagle Lake Road, about 5 miles north-west of Susanville.
1584
Comment
CAS-BOT-BC114052
Cyperus squarrosus
John Thomas Howell
1974-7-10
50523
Lassen
Elysian Valley
1325
Comment
JEPS127269
Cyperus squarrosus
Lowell Ahart, John Dittes
2016-7-13
21139
Lassen
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.
Comment
UC1567429
Cyperus squarrosus
G. Schoolcraft
1989-7-24
1994
Lassen
along n. shore Said Valley Reservoir
1630
Comment
UC4436
Cypripedium californicum
Mrs. R. M. Austin
1882-1
Lassen
Mt. Dyer
Comment
CHSC117185
Cystopteris fragilis
Lowell Ahart; John Dittes
2016-6-7
21007
Lassen
About 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.
1397
Comment
CHSC27716
Cystopteris fragilis
Robert A. Schlising
1978-7-9
3315
Lassen
S of Eagle Lake, rocks on E side of Mahogany L.
2060
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
CHSC27590
Damasonium californicum
Jerry Snodgrass
1978-7-1
22
Lassen
Mahogany Lake, SE of Eagle L.
2048
Comment
SEINET3895836
Damasonium californicum
Arnold Tiehm, Gary Schoolcraft
1984-8-14
9245
Lassen
Buckhorn Reservoir on the south side of Buckhorn road to Ravendale, about 6 road miles west of the state line.; 0
1698
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
HSC24237
Damasonium californicum
John Pratt
1970-6-21
33
Lassen
Seasonally flooded lake
Comment
UC1024914
Danthonia californica
Leo Whitney
1935-6-25
3368
Lassen
near Camp 10 <of?> Fruit Grower's Supply Company; Lassen National Forest
Comment
CHSC66281
Danthonia californica var. americana
Vernon H. Oswald; Lowell Ahart
1996-6-24
7839
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
CAS-BOT-BC192327
Danthonia unispicata
Parkison
1916-6-10
15
Lassen
Lassen National Forest. Harvey Valley
1676
Comment
CAS-BOT-BC192329
Danthonia unispicata
Ralph K. Gierisch
1968-7-11
3353
Lassen
Lassen National Forest. Harvey Valley - Dixie Spr.
1706
Comment
GMDRC6446
Danthonia unispicata
J. M. Andre
1993-6-1
29999
Lassen
along US Hwy 395, about 10 mi. south of Ravendale, WSW of Shinn Mountain
1579
Comment
UCD61291
Danthonia unispicata
Beecher Crampton
1964-6-25
7069
Lassen
25 miles NW of Susanville, State Hwy. 44, Bogard Ranger Station, Lassen National Forest, meadow of Pine Creek Valley.
1722
Comment
UC1523708
Deinandra lobbii
Gary Schoolcraft
1981-8-25
567
Lassen
e Little Valley (at edge of reservoir in flat); Chico Flat
1377
Comment
JEPS79214
Delphinium
L. R. Heckard with R. C. Bacigalupi
1980-6-12
5254
Lassen
ne Westwood (near golf course)
1554
Comment
CHSC106590
Delphinium andersonii
C. Dow; D. Garrison
2008-5-3
Lassen
Fort Sage Mtns. OHV Trailhead and Trail to Indian Springs.
1439
Comment
CHSC4983
Delphinium andersonii
R. Clicquennoi
1967-6-24
38
Lassen
Meadow. 4 mi e of Eagle Lake Biology Station at Murrer's Upper Meadow.
1524
Comment
CHSC64806
Delphinium andersonii
Vernon H. Oswald
1995-5-24
6784
Lassen
Modoc Plateau. Wendel Rd. (Lassen 320) at milepost 18.5, ca. 1 mi e of Duck Lake Rd. On the s side of the road.
1219
Comment
CHSC7730
Delphinium andersonii
Beverley J. Wise
1969-5-18
83
Lassen
7.7 mi. West of Susanville on Las. Co. Rd. 215 on the south side of the road.
1341
Comment
UC1583981
Delphinium andersonii
G. Schoolcraft
1990-6-12
2090
Lassen
about 17 mi e Ravendale; Pine Dunes RNA
1706
Comment
UCD55273
Delphinium andersonii
Ellen Dean
2006-5-15
3083
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. Northern part of Johnston property near sandy wash.
1249
Comment
CHSC11768
Delphinium nudicaule
Wayne O. Baum
1971-6-22
71 -2
Lassen
West side of Rd. 5 approx. 1/4 mi. S. of five corners.
1767
Comment
CAS-BOT-BC9945
Delphinium nudicaule
Mrs. H. C. Cantelow
1941-5-22
N. S.
Lassen
Fredonyer Pass, 12 miles west of Susanville.
Comment
CHSC67294
Delphinium nuttallianum
James D. Jokerst
1991-5-29
3306
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
UC773881
Delphinium nuttallianum
L. R. Short
1936-5-12
S- 347
Lassen
Burgess Spring Experiment Range Lassen <National> Forest
1834
Comment
JEPS103186
Delphinium stachydeum
G. Schoolcraft
2000-7-5
2910
Lassen
On Shinn Mountain above Spanish Spring Reservoir
2011
Comment
OBI75897
Deschampsia cespitosa
Anthony Baniaga
2011-8-17
508
Lassen
Lassen Natl Forest. Along Silver Lake Rd (32N10) W of 31N08. Red Cinder Quad T31N R8E sec 31 SW of SW
1978
Comment
UC1131416
Deschampsia cespitosa
H. S. Yates
1936-8-12
6087
Lassen
Westwood Susanville Quad., Westwood
Comment
JEPS71178
Deschampsia cespitosa subsp. cespitosa
Brown and Wieslander
71
Lassen
Comment
UC1037093
Deschampsia cespitosa subsp. cespitosa
Leo Whitney
1934-7-15
2211
Lassen
ca. 15 mi. w. Eagle lake (Crater Lake, Lassen Nat'l Forest); Lassen Nat'l Forest, Crater Lake
2133
Comment
CHSC66282
Deschampsia danthonioides
Vernon H. Oswald; Lowell Ahart
1996-6-24
7840
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
CHSC91297
Deschampsia danthonioides
Lowell Ahart; John Dittes
2005-6-1
11913
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
POM313171
Deschampsia danthonioides
Malcolm A. Nobs, S. Galen Smith
1949-7-21
1059
Lassen
4 miles north of Madeline
Comment
UCD62514
Deschampsia danthonioides
L. Whitney
1935-6-20
3251
Lassen
Camp 10, Fruit Grower's Supply Company, Lassen National Forest.
Comment
RSA268159
Deschampsia danthonioides
J. R. Reeder, C. G. Reeder
1972-6-1
5630
Lassen
2 miles S. of Nubieber.
1037
Comment
JEPS68512
Deschampsia elongata
Brown and Wieslander
1922-7-19
Lassen
Martin Springs meadow
Comment
UC1024780
Deschampsia elongata
Leo Whitney
1933-8-15
2244
Lassen
ca. 8 mi. n.w. Eagle Lake (Slate Creek); Lassen Nat'l Forest, Slate Creek
1920
Comment
CHSC64771
Descurainia paradisa
Vernon H. Oswald
1995-5-24
6776
Lassen
Modoc Plateau. Wendel Rd. (Lassen 320) 0.4 mi e of the e end of Amedee Rd. (6.1 mi e of Wendel). Roadside.
1219
Comment
CHSC25101
Descurainia pinnata
W. R. Lessig
1967-6-24
3
Lassen
1/4 mi. N. of Eagle Lake Biology Station.
1584
Comment
UC1126907
Descurainia pinnata
A. Simontacchi
1940-6-4
808
Lassen
14.8 mi w Harvey Mtn. Lookout; Lassen National Forest, Halls Flat Quad.
1783
Comment
RSA647568
Descurainia pinnata
Marion P. Harthill
1971-6-21
228
Lassen
Rovendale.
Comment
CHSC64772
Descurainia pinnata subsp. intermedia
Vernon H. Oswald
1995-5-24
6777
Lassen
Modoc Plateau. Wendel Rd. (Lassen 320) 0.4 mi e of the e end of Amedee Rd. (6.1 mi e of Wendel). Roadside.
1219
Comment
UC1143009
Descurainia richardsonii
August L. Hormay
1934-5-11
Lassen
2.5 mi nw Hall's Flat; Lassen National Forest
1676
Comment
RSA716273
Descurainia sophia
L. Ahart, John Dittes
2005-6-2
11925 -A
Lassen
Along the road, near the Anderson Ranch home, Long Valley, about 4.75 miles (air) N of the intersection of Scott Road and Hwy 70, 6.2 miles (air) NW of Hallelujah Junction.
1460
Comment
CAS-BOT-BC502558
Dichelostemma congestum
A. M. Vollmer; L. Beane
1953-7-1
95
Lassen
Along Halls Flat road, beginning 6 mi W of Susanville to McCarthur
1554
Comment
CHSC56816
Dichelostemma multiflorum
Jerry Snodgrass
1978-7-8
42
Lassen
Willard Creek, 2 mi S of Hwy 36 near Forest Service campsite.
1499
Comment
POM109921
Dichelostemma multiflorum
Marcus E. Jones
1897-6-26
s.n.
Lassen
Susanville. Perkin s Ranch.
1463
Comment
CAS-BOT-BC299812
Dieteria canescens var. canescens
Elmer I. Applegate
1923-9-30
4031
Lassen
Doyle
Comment
CAS-BOT-BC290958
Dieteria canescens var. shastensis
John Thomas Howell
1934-7-6
12434
Lassen
Harvey Valley
Comment
CHSC86974
Dieteria canescens var. shastensis
L. P. Janeway
2001-6-20
7202
Lassen
High Cascade Range. 0.6 km east of Road 111 and 1.3 km south of Road 35N60; about 11 km west of Little Valley, 3.9 km east-northeast of Coble Mountain.
1402
Comment
HSC63968
Dimeresia howellii
Teresa Prendusi
1980-7-14
Lassen
Ash Valley; along Ash Valley Rd. 15 mi. W of Madeline
1524
Comment
CHSC4977
Diplacus jepsonii
D. L. Stites
1967-7-14
148
Lassen
Collected at Silver Lake.
1828
Comment
CAS-BOT-BC153680
Diplacus mephiticus
H. D. Ripley; R. C. Barneby
1944-5-22
5956
Lassen
South of Janesville
1280
Comment
CHSC13945
Diplacus mephiticus
M. S. Taylor
1974-7-6
311
Lassen
On Gallatin Peak overlooking Gallatin Beach, ca. 13 mi nw of Susanville.
Comment
OBI76990
Diplacus mephiticus
Anthony Baniaga
2011-7-5
418
Lassen
Lassen Natl Forest. E of Willard Crk. Fredonyer Pass quad. T29N R10E sec 25 NE of NW
1503
Comment
SEINET201637
Diplacus mephiticus
Arthur Cronquist, Arthur H. Holmgren
1959-1
8464
Lassen
50 mi SE of Susanville
Comment
SEINET201638
Diplacus mephiticus
Arthur Cronquist, Arthur H. Holmgren
1959-1
8454
Lassen
25 mi NW of Reno
Comment
OBI76920
Diplacus pygmaeus
Anthony Baniaga
2011-7-9
435
Lassen
Lassen Natl Forest. SW Pine Crk Valley. Pine Crk Valley quad. T31N R8E sec 10 NE of NE
1718
Comment
CHSC91302
Distichlis spicata
Lowell Ahart; John Dittes
2005-6-2
11922
Lassen
Along the road, near the Anderson Ranch home, 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
UC60225
Distichlis spicata
J. Burtt Davy
June 17-24 1897
Lassen
Amedee, Honey Lake Valley
Comment
UCD64607
Distichlis spicata var. stricta
Malcolm A. Nobs; S. Galen Smith
1949-7-22
1069
Lassen
NE shore of Eagle Lake.
Comment
UCD64624
Distichlis spicata var. stricta
Verne Grant; Irving Schneider
1947-9-5
8377
Lassen
Northwest shore of Eagle Lake by Sam Webb's place (Spaulding).
Comment
SD7836
Dodecatheon
Mrs. R. M. Austin
August 1882
Lassen
Kings Valley
Comment
CAS-BOT-BC136180
Dodecatheon alpinum
John Thomas Howell
1934-6-14
12114
Lassen
Near Lost Lake - Warner Mountains
2438
Comment
HSC95203
Dodecatheon alpinum
Gordon Leppig, Tony LaBanca, Leonel Arguello
1997-6-28
507
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
SEINET8561548
Dodecatheon conjugens
M. J. Williams
1969-5-24
s.n.
Lassen
Ca 0.5 mile N of Bogart Ranger Station.
Comment
CHSC6281
Dodecatheon pulchellum
B. Anthony
1967-7-14
277
Lassen
One mi e of Silver Lake.
1950
Comment
CHSC12415
Downingia bacigalupii
Anne Linda Brisk
1969-6-26
30
Lassen
Growing in Papoose Meadow, 13.5 mi SW of ELBS.
1658
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
CHSC23491
Downingia bicornuta
K. R. Stern
1974-6-26
5855
Lassen
Ditch bank beside railroad track, e side of Poison Lake Rd. to Pittville, 1.8 mi nw of intersection with Hwy. 44.
Comment
JEPS114876
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
UC157670
Downingia bicornuta var. bicornuta
Milo S. Baker
1894-7-12
Lassen
Pine Creek
Comment
UC1609203
Downingia bicornuta var. bicornuta
Vernon H. Oswald and Lowell Ahart
1993-7-8
5649
Lassen
1.9 mi n Highway 44 (Pittville Rd (Lassen 111, 36N01), se edge of Poison Lake, on the e side of the railroad, which parallels the lake shore at this point); Poison Lake
1709
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
CHSC54182
Downingia cuspidata
Vernon H. Oswald
1991-5-28
4623
Lassen
Wayman Barn at the west end of Hunt Rd, Ash Creek Wildlife Area, ca. 5 miles northeast of Bieber.
1264
Comment
HSC69067
Downingia insignis
Gary Schoolcraft
1980-7-16
317
Lassen
N end of Nelson Corral Reservoir area.
1805
Comment
JEPS97322
Downingia insignis
Vernon H. Oswald and L. Ahart
1995-8-14
7184
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
1645
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
RSA505420
Downingia insignis
Rimo Bacigalupi, Mitchell, S. Galen Smith, G. Bacigalupi
1957-6-28
6000
Lassen
Ditches along U.S. Highway 395 on Madeline Plains, 3.1 miles south of Madeline
1616
Comment
SEINET12329647
Downingia insignis
N. H. Holmgren, Holmgren, P. K.
1980-1
9482
Lassen
U.S. Highway 395, 7.4 km (4.6 mi.) S of Ravendale, T33N, R15E, S6
1620
Comment
CHSC23440
Downingia laeta
K. R. Stern; D. B. Joley, J. G. Geschke
1974-6-22
5805
Lassen
E side of Hwy. 139, ca. 2 mi s of Termo-Grasshopper Road and ca. 44 mi n of Susanville.
Comment
SBBG33614
Downingia pulchella
H. and M. Dearing
1938-6-30
2224
Lassen
ca. 50 mi W of Susanville
1219
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
OBI78908
Draba verna
Anthony Baniaga
2011-6-7
313
Lassen
Lassen National Forest. Northwest area of Grays Valley, just South of intersection of 33N11 and 32N83Y. Poison Lake quadrangle.
1747
Comment
CAS-BOT-BC159715
Drymocallis glandulosa
Louella Bass
1977-6-26
77 -5
Lassen
Elysian Valley, south of Superdam.
1325
Comment
JEPS128410
Drymocallis glandulosa
Catherine Bauer with Ellen Bauer Benson
2017-8-16
18
Lassen
South of Highway 44, North of Butte Lake, at Butte Creek Campground. Santa Clara Valley, National Forest Service, National Forest Campground.
Comment
UC773878
Drymocallis lactea
L. R. Short, J. Warren
1936-6-10
S- 425
Lassen
Burgess Spring Experiment Range
1853
Comment
RSA252429
Elatine californica
R. F. Thorne, C. W. Tilforth, K. Thorne
1969-9-5
39136
Lassen
Said Valley Reservoir.
Comment
CAS-BOT-BC113617
Eleocharis acicularis
George Wilson Gillett
1957-7-22
878
Lassen
Snag Lake. Margin of gravel bars along south shore.
1844
Comment
CAS-BOT-BC113619
Eleocharis acicularis
George Wilson Gillett
1957-9-4
1128
Lassen
Widow Lake. East margin of lower lake, near inlet; in drying mud.
2072
Comment
JEPS28331
Eleocharis acicularis
George W. Gillett
1957-7-22
878
Lassen
Snag Lake Lassen Volcanic National Park (margin of gravel bars along s shore)
1844
Comment
JEPS28332
Eleocharis acicularis
George W. Gillett
1957-7-28
933
Lassen
Widow Lake Lassen Volcanic National Park (shore)
2072
Comment
CHSC110893
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.
1267
Comment
CHSC112798
Eleocharis macrostachya
Lowell Ahart; John Dittes
2013-7-22
18848
Lassen
West margin of a duck field, about 30 yards south of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
CAS-BOT-BC113202
Eleocharis parishii
R. F. Thorne; C. W. Tilforth
1969-9-6
39258
Lassen
Sandy flats along Long Valley Creek, ca. 14 mi SE of Milford.
1310
Comment
HSC95296
Eleocharis suksdorfiana
Gordon Leppig
1998-7-13
968
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
UCD150399
Elodea canadensis
William Anderson
1963-6-12
s.n.
Lassen
Honey Lake Valley.
Comment
CHSC96717
Elodea nuttallii
Gordon Leppig
1998-7-13
970
Lassen
Modoc National Forest, Blue Lake Ranch. Peatland in large meadow complex. Submersed near creek.
1970
Comment
SEINET190966
Elymus
A. A. Beetle
1941-6-28
2803
Lassen
10 mi W of Chester Rte 36
Comment
SEINET10525781
Elymus X hansenii
Douglas G. LeDoux, David B. Dunn
1973-5-25
LeDoux 886
Lassen
Collected 3 mi N of Milford on Hwy 395 at Honey Lake campgrounds.
Comment
UCD62817
Elymus X saundersii
Beecher Crampton
1960-6-18
5716
Lassen
Southern Warner Mtns., vicinity of Blue Lake Ranch.
1981
Comment
CAS-BOT-BC221829
Elymus canadensis
Marcus E. Jones
1897-6-19
s.n.
Lassen
Chat
1615
Comment
CHSC117535
Elymus caput-medusae
Lowell Ahart; John Dittes
2016-7-13
21145
Lassen
Scattered along the west edge of the pond, 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 southern slope of Big Valley.
1289
Comment
CHSC115611
Elymus cinereus
Lowell Ahart; John Dittes
2015-7-14
20327
Lassen
On the north side 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.
1271
Comment
CHSC67076
Elymus cinereus
Willis Ball
1969-6-25
39
Lassen
Found in Upper Murrer's Mdw.
1584
Comment
CAS-BOT-BC227493
Elymus elymoides
John Thomas Howell
1934-6-10
11866
Lassen
Honey Lake Valley, 37 miles s. of Susanville
Comment
JEPS128418
Elymus elymoides
Jennifer Mueller
2017-7-18
CA 320 -193
Lassen
Near Long Springs on Cold Springs Mountain.
Comment
UCD61485
Elymus elymoides
Beecher Crampton
1954-7-6
2075
Lassen
Along US Hwy 395, 15 miles south of Ravendale.
1676
Comment
UC1137757
Elymus elymoides subsp. elymoides
L. R. Short and Wm. Gansberg
1936-7-9
S- 477
Lassen
Burgess Spr. Exp. Range Lassen <National> Forest
1783
Comment
UC773976
Elymus elymoides subsp. elymoides
L. R. Short and J. Warren
1936-6-29
S- 461
Lassen
Burgess Spring Experiment Range Lassen <National> Forest
1820
Comment
JEPS121262
Elymus repens
Lowell Ahart, John Dittes
2013-7-23
18894
Lassen
About 20 feet SW of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley.
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
UC60832
Elymus trachycaulus
M. S. Baker and Frank Nutting
1894-7-5
Lassen
mts. s Dixey Valley
Comment
JEPS107397
Elymus trachycaulus subsp. subsecundus
Lowell Ahart, John Dittes
2005-6-1
11880
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
CHSC105211
Elymus trachycaulus subsp. trachycaulus
Lowell Ahart; John Dittes
2010-7-19
17017
Lassen
On the south side of the road, about 20 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 Read comments Oct 5 2019
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
SEINET12757019
Elymus triticoides
B. L. Wilson, D. Lytjen, N. Otting
2005-7-29
11527
Lassen
Smith Flat on Cedar Creek, 6 or 7 miles E of Madeline, N of County Road 510; Blue Door Flat.
1692
Comment
SEINET10561204
Elymus triticoides subsp. multiflorus
Howell
1973-6-28
Howell 49522
Lassen
Elysian Valley, west of Janesville.
1326
Comment
CHSC76104
Elytrigia elongata
Lowell Ahart; Vernon H. Oswald
1999-9-13
8212
Lassen
On the edge of a canal, just south of the parking area and about 100 yards to the east, about 1 mile south of the sign in station, Honey Lake Wildlife Area, 5 1/2 miles (air) southeast of Standish.
1207
Comment
UC1220396
Elytrigia elongata
T. C. Fuller
1963-7-15
10887
Lassen
2.9 mi se Pittville (s of road to Little Valley)
Comment
CAS-BOT-BC81879
Ephedra viridis
Doris Kildale Gillespie
1930-5-12
9347
Lassen
between Susanville and Leavitt Lake
Comment
CHSC116918
Ephedra viridis
J. P. Bergmann
2011-4-30
Lassen
Fort Sage OHV Recreation Area.
1450
Comment
CHSC23330
Ephedra viridis
Mark Stopher
1976-1-11
29
Lassen
Ca. 52 miles south of Susanville on Hwy. 395 then two miles east on Red Rock Road.
1328
Comment
CHSC25297
Ephedra viridis
Pauleen Broyles
1977-5-30
141
Lassen
Spencer's Spring ca 8 km nne of Herlong.
1620
Comment
CHSC30602
Ephedra viridis
L. J. Dawson
1975-7-7
43
Lassen
6 mi from Hwy. 395 on Ravensdale Road.
1584
Comment
CHSC33322
Ephedra viridis
P. Reynolds
1979-7-4
17
Lassen
3 mi. NE of Wendel, Wendel Canyon in the Skedaddle Mtn. Range.
1371
Comment
CHSC89
Ephedra viridis
1928-5-28
Lassen
Antelope grade north of Susanville.
1615
Comment
NY70786
Ephedra viridis
A. J. Cronquist
1959-6-17
8477
Lassen
6 miles northeast of Susanville
1828.8
Comment
UC1537115
Ephedra viridis
Gordon H. True Jr.
555
Lassen
n slope Hot Spring Mountain
1981
Comment
SEINET10532271
Ephedra viridis
Mary Susan Taylor
1982-5-29
Taylor 4563
Lassen
T22N R17E se sec 23. Loyalton quad. NW corner of the jct of Scott Rd and Hwy 395, ca. 20 mi n of Reno; in Sagebrush Scrub. 4900 ft.
1493
Comment
POM145990
Epilobium angustifolium subsp. circumvagum
J. B. Feudge
1927-7-20
1716
Lassen
West of Susanville
Comment
CHSC113058
Epilobium brachycarpum
Lowell Ahart; John Dittes
2013-7-22
18845
Lassen
West margin of a duck field, about 10 yards east of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
RSA123007
Epilobium brachycarpum
L. R. Short, J. Warren
1936-6-23
S- 454
Lassen
Burgess Spring Exp. Range, Lassen forest
1744
Comment
JEPS39248
Epilobium ciliatum subsp. ciliatum
Brown and Wieslander
1922-7-30
16
Lassen
Martin Sprs. Eagle Lake
Comment
POM46399
Epilobium ciliatum subsp. ciliatum
Marcus E. Jones
1897-6-24
s.n.
Lassen
10 to 15 miles west from Amedee.
1220
Comment
UC1583966
Epilobium ciliatum subsp. ciliatum
G. Schoolcraft
1990-8-14
2123
Lassen
on Hwy 139 between M.P. 56 and M.P. 57 (s of Adin)
1432
Comment
CHSC99524
Epilobium ciliatum subsp. glandulosum
Lowell Ahart; John Dittes
2008-6-20
14948
Lassen
In meadow, about 300 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
NY1001467
Epilobium ciliatum var. ciliatum
M. A. Nobs
1949-8-20
1471
Lassen
Honey Lake Valley, 1 mile south of Milford
Comment
UC725477
Epilobium densiflorum
A. A. Heller
1938-7-28
15296
Lassen
about a mile e Westwood (meadow on edge of swamp)
1524
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
JEPS39254
Epilobium hallianum
Brown and Wieslander
1922-7-23
38
Lassen
Martin Sprs. Eagle Lake
Comment
SEINET3271523
Epilobium oregonense
Marcus E. Jones
1897-6-30
Lassen
4 mi below Eagle Lake
1524
Comment
CHSC60912
Epilobium pallidum
Vernon H. Oswald; Lowell Ahart
1993-7-8
5673
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 bed of a vernal pool on the E side of the road.
1694
Comment
UC1609446
Epilobium pallidum
Vernon H. Oswald and Lowell Ahart
1993-7-8
5673
Lassen
Halls Flat Rd (33N18) 1.4 mi ssw Pittville Rd (Lassen 111, 36N01) (ca 5.4 air mi nw of Poison Lake, bed of vernal pool on e side of rd)
1694
Comment
CAS-BOT-BC332739
Epilobium pallidum
R. F. Thorne; Larry E. DeBuhr
1975-8-22
46980
Lassen
Along Hwy 395 ca 6 miles N of Medeline and 4.5 miles S of Modoc county line
1615
Comment
RSA512825
Epilobium paniculatum
J. T. Howell, Gordon H. True
1973-7-31
50028
Lassen
Sierra Nevada: On road from Janesville to Thompson Peak, Diamond Range
1738
Comment
CAS-BOT-BC56948
Equisetum arvense
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49463
Lassen
Elysian Valley, west of Janesville
1325
Comment
CAS-BOT-BC57304
Equisetum laevigatum
John Thomas Howell
1973-7-10
49771
Lassen
near Westwood
1554
Comment
CHSC61944
Equisetum laevigatum
Eenam Sin
1992-6-2
18
Lassen
Murrers Meadow.
1524
Comment
JEPS114954
Equisetum laevigatum
Lowell Ahart, John Dittes
2008-6-20
14933
Lassen
On the levee road, 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
CHSC76105
Eragrostis cilianensis
Lowell Ahart; Vernon H. Oswald
1999-9-13
8229
Lassen
Along the north side of Mapes Road, about 200 yards east of Lambert Lane, about 3 1/2 miles (air) southeast of Standish.
1210
Comment
CHSC77263
Eragrostis cilianensis
G. Schoolcraft
1997-8-20
2700
Lassen
Safeway parking lot in Susanville.
1264
Comment
CAS-BOT-BC213625
Eragrostis mexicana subsp. virescens
John Thomas Howell; G. H. True
1973-7-31
50145
Lassen
Susanville
1295
Comment
CAS-BOT-BC284059
Eragrostis pectinacea var. pectinacea
John Thomas Howell
1975-7-23
51383
Lassen
Susanville, Sierra Nevada
1295
Comment
CAS-BOT-BC174121
Eremogone aculeata
M. S. Taylor; B. Hammond
1982-8-27
5056 A
Lassen
On ridge between Crystal and Adams Peaks, Diamond Mts, ca. 4 air mi sw of Constantia
2225
Comment
CHSC29857
Eremogone congesta var. simulans
Robin Ondricek
1978-6-6
32
Lassen
At Murrers Upper Meadow, .5 mi E of intersection with main rd. to ELFS and tunnel crossing.
1569
Comment
NY1057004
Eremogone congesta var. simulans
A. J. Cronquist
1959-6-17
8463
Lassen
50 miles southeast of Susanville
Comment
SBBG124753
Eremogone congesta var. simulans
C. B. Hardham
1961-6-17
7531
Lassen
Hwy 395, between Alturas and Susanville
1524
Comment
CHSC117206
Eremogone congesta var. subcongesta
Lowell Ahart; John Dittes
2016-6-7
20983
Lassen
40 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
SEINET4132785
Eremothera boothii subsp. alyssoides
A. Tiehm
1980-1
5754
Lassen
North end of Honey Lake Valley, 2 air miles northwest of Wendel
1231
Comment
SEINET4133353
Eremothera boothii subsp. alyssoides
G. Schoolcraft
1980-5-30
247
Lassen
Along road to Diaz Ranch
1359
Comment
CHSC100870
Eriastrum signatum
L. P. Janeway
2008-8-2
9533
Lassen
Modoc Plateau. Just above the flats along the south side of Rush Creek; south side of Smokey Creek Ranch Road 1.8 km west of the CA-NV line.
1349
Comment
RSA0124147
Eriastrum signatum
L. P. Janeway
2008-8-2
9533
Lassen
Modoc Plateau just above the flats along the S side of Rush Creek, S side of Smokey Creek Ranch road 1.8km W of the CA-NV line.
1349
Comment
CAS-BOT-BC515170
Eriastrum signatum
Alice Eastwood; John Thomas Howell
1940-6-16
8331
Lassen
Near Susanville
Comment
JEPS116750
Eriastrum signatum
David Gowen
2006-8-2
656
Lassen
Hallelujah Junction along frontage road on east side of Hwy 395.
Comment
UC133905
Eriastrum wilcoxii
T. S. Brandegee
1892-6-22
Lassen
Honey Lake
Comment
CAS-BOT-BC286602
Ericameria bloomeri
G. Schoolcraft
1987-9-1
1770
Lassen
About midway up N. slope of Observation Mtn. along road
2072
Comment
HSC69070
Ericameria bloomeri
Gary Schoolcraft
1979-8-15
176
Lassen
Tule Mtn. Area
2043
Comment
UC1136848
Ericameria bloomeri
George A. Fischer and Irwin H. Johnson
1933-8-26
F- 280
Lassen
n border Grass Valley; Lassen Forest, Grass Valley
1676
Comment
UC76031
Ericameria bloomeri
Milo S. Baker
Lassen
Big Valley, Lassen and Modoc Co. Big Valley
Comment
JEPS21524
Ericameria nauseosa var. oreophila
W. L. Jepson
1918-8-4
7808
Lassen
Horse Lake
1554
Comment
OBI5746
Ericameria nauseosa var. oreophila
Carl B. Wolf
1931-9-5
2401
Lassen
3/4 mi E of Termo
1646
Comment
UC527346
Ericameria nauseosa var. oreophila
C. B. Wolf
1931-9-5
Lassen
3/4 mi e Termo
1645
Comment
CAS-BOT-BC299486
Ericameria nauseosa var. washoensis
Gary Schoolcraft
1984-9-11
1375
Lassen
Along Hwy. 395 about 1/2 mile south of Ramhorn Campground Road
1615
Comment
JEPS97423
Erigeron aphanactis var. aphanactis
Vernon H. Oswald and L. Ahart
1995-6-19
6890
Lassen
T30N R15E SE1/4 SE1/4 Sect. 12, 4440 ft, Modoc Plateau, Sagebrush Scrub. Between Litchfield and Ravendale on Smoke Creek Ranch Rd., 3.6 mi e of Hwy. 395. Many-stemmed herbaceous perennial from a branching and tap-rooted caudex
1353
Comment
CDA4405
Erigeron bloomeri
T. C. Fuller
1963-6-1
10632
Lassen
East side of road to Hall s Flat, 9.4 miles south of Pittville.
0
Comment
SEINET10617399
Erigeron bloomeri
David B. Dunn, Billy Joe Cox
1971-6-2
Dunn 17790
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
CAS-BOT-BC294488
Erigeron bloomeri var. bloomeri
John Thomas Howell
1934-7-8
12513
Lassen
Harvey Valley
Comment
CHSC52763
Erigeron bloomeri var. bloomeri
L. P. Janeway
1990-7-4
3768
Lassen
On knob ca 0.8 mi NE of Meadowview Peak.
1981
Comment
CHSC64753
Erigeron bloomeri var. bloomeri
Vernon H. Oswald
1995-5-31
6806
Lassen
Modoc Plateau. Smoke Creek Ranch Rd. 0.9 mi e of Hwy. 395, between Litchfield and Ravendale.
1353
Comment
CHSC68843
Erigeron bloomeri var. bloomeri
Vernon Oswald; Lowell Ahart
1997-6-24
8631
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
JEPS114758
Erigeron bloomeri var. bloomeri
Lowell Ahart, John Dittes
2008-6-19
14894
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-BC297189
Erigeron coulteri
G. Schoolcraft
1994-7-6
2358
Lassen
About 1 mile west of Boot Lake
2042
Comment
UC1924196
Erigeron divergens
Debra Valov
2005-8-20
2005234
Lassen
Bieber; off County A2 c. 8 km east of Hwy 299
1274
Comment
UC1924228
Erigeron divergens
Debra Valov
2004-6-8
2004246
Lassen
Bieber; off County A2 c. 8 km east of Hwy 299
1271
Comment
CAS-BOT-BC295978
Erigeron divergens
Gary Schoolcraft
1984-9-4
1372
Lassen
Fredomyer Mtn.
1737
Comment
CAS-BOT-BC296850
Erigeron divergens
Margaret Williams; Louella Bass
1972-10-22
EV 9
Lassen
Elysian Valley northwest of Janesville, Sierra Nevada
1325
Comment
RSA339143
Erigeron divergens
Margaret J. Williams
1984-6-16
84- 31 -1
Lassen
Doyle Grade, County Hwy. 331, 2.6 miles W of Doyle.
Comment
CHSC60816
Erigeron eatonii var. plantagineus
Vernon H. Oswald; Lowell Ahart
1993-6-14
5505
Lassen
Lassen A21 (32N02), 2.1 mi E of Lassen 105 (32N28Y), on the SE side of Pine Creek Valley, ca. 8 mi (air) W of Eagle Lake.
1728
Comment
JEPS94485
Erigeron eatonii var. plantagineus
Vernon H. Oswald and Lowell Ahart
1997-5-27
8520
Lassen
3.3 mi e of Highway 139 (n of Susanville on Forest Route 38N04 between Hwy 139 near Willow Creek Guard Station and Coyote Flat); Forest Route 38N04
1725
Comment
POM32997
Erigeron eatonii var. plantagineus
Marcus E. Jones
1897-6-30
s.n.
Lassen
Eagle Lake, 27 miles from Susanville.
1524
Comment
UC87584
Erigeron eatonii var. plantagineus
T. S. Brandegee
1892-7-2
Lassen
Susanville
Comment
UCD131889
Erigeron eatonii var. plantagineus
Jack Major
1966-6-24
s.n.
Lassen
Long Valley, 3 miles airline southwest of Patterson Guard Station, northeastern county.
2087
Comment
CAS-BOT-BC300424
Erigeron elegantulus
Gary Schoolcraft
1983-6-29
1040
Lassen
Along Hwy 139 near Upper McBride Sp.
1584
Comment
POM36253
Erigeron filifolius
Marcus E. Jones
1897-6-19
s.n.
Lassen
Chat.
1524
Comment
UC1583975
Erigeron filifolius
G. Schoolcraft
1990-7-2
2102
Lassen
w Cold Spring Mtn.
1645
Comment
CHSC105240
Erigeron filifolius var. filifolius
Lowell Ahart; John Dittes
2010-7-31
17008
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
CHSC87110
Erigeron filifolius var. filifolius
L. P. Janeway
2001-6-20
7201
Lassen
High Cascade Range. 0.6 km east of Road 111 and 1.3 km south of Road 35N60; about 11 km west of Little Valley, 3.9 km east-northeast of Coble Mountain.
1402
Comment
UC2027204
Erigeron inornatus var. calidipetris
Anthony Baniaga
2011-8-3
485
Lassen
Lassen National Forest. N of 30N61, W of A21. Swain Mountain quadrangle
Comment
UC485173
Erigeron inornatus var. inornatus
T. S. Brandegee
1892-6-30
Lassen
Susanville
Comment
JEPS41565
Erigeron linearis
F. W. Peirson
1926-6-24
6855
Lassen
Madeline Plain
Comment
UC584272
Erigeron linearis
G. L. Stebbins Jr. and J. A. Jenkins
1937-7-9
2265
Lassen
bare summit ridge and ridges sw Diamond Mt. (Plumas and Lassen Cos. boundary, s of Susanville)
2164
Comment
HSC63770
Erigeron linearis
Teresa Prendusi
1980-5-20
Lassen
Snowstorm Mtn. along spring area and 4 mi. W of Hwy. 395
1524
Comment
CAS-BOT-BC295237
Erigeron lonchophyllus
G. Schoolcraft
1999-6-29
2848
Lassen
E. edge of Madeline Plains about 9 mi. ne of Ravendale
1615
Comment
CHSC12615
Erigeron philadelphicus
Jannae Pitts
1972-6-23
265
Lassen
On the road to Eagle Lake Field Station, 2 mi se of the station on the e side of the road.
Comment
CHSC5209
Erigeron philadelphicus
M. West
1946-7-10
Lassen
Pine Creek, Eagle Lake.
1584
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
RSA702451
Erigeron pumilus subsp. intermedius
L. P. Janeway
2004-6-26
8163
Lassen
High Cascade Range, alt peteeson Flat, Balcks Mtn Experimental Forest.
1767
Comment
UC1118181
Erigeron pumilus var. intermedius
A. Simontacchi
1940-6-30
906
Lassen
2.2 mi ene of Ebey Lake; Halls Flat Quad.
1699
Comment
NY243326
Eriogonum baileyi var. baileyi
R. F. Hoover
1940-10-1
4649
Lassen
Johnstonville.
Comment
SEINET530700
Eriogonum baileyi var. baileyi
Paul Opler
2007-7-7
Lassen
N end Turtle Mountain.
1288
Comment
NY242927
Eriogonum caespitosum
B. M. Bartholomew
1993-5-13
6567
Lassen
U.S. Hwy 395 1.3 km S of railroad crossing and 12.9 km N of Litchfield.
1330
Comment
UCR92117
Eriogonum cernuum
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
CDA22482
Eriogonum collinum
E. E. Fix
1960-6-2
Lassen
0
Comment
RSA236684
Eriogonum collinum
A. J. Cronquist, A. H. Holmgren
1959-6-17
8478
Lassen
1 mile south of Ravendale, 40 miles NE of Susanville
1616
Comment
RSA238630
Eriogonum collinum
James L. Reveal
1971-6-22
2463
Lassen
Along Hwy 395, 4.5 miles south of Ravendale
Comment
SD86297
Eriogonum collinum
James L. Reveal
1971-6-22
2463
Lassen
Along U.S. Highway 395, 4.5 miles south of Ravendale, on a gravelly Artemisia flat.
Comment
NY570382
Eriogonum douglasii
S. L. Welsh
2001-6-14
28154
Lassen
East of Highway 395, road to Rams Horn Spring campground
1539.2
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
UC85900
Eriogonum douglasii var. meridionale
T. S. Brandegee
1872-1
Lassen
Susanville
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
SEINET5330338
Eriogonum inflatum var. inflatum
F. B. Headley
1915-5-28
s.n.
Lassen
Honey Lake.
Comment
CAS-BOT-BC263044
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
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
OBI76908
Eriogonum marifolium
Anthony Baniaga
2011-7-9
438
Lassen
Lassen Natl Forest. SW Pine Crk Valley. Pine Crk Valley quad. T31N R8E sec 10 NE of NE
1723
Comment
CAS-BOT-BC267345
Eriogonum marifolium var. marifolium
John Thomas Howell
1934-7-9
12521
Lassen
Pine Creek Flat
Comment
CDA22621
Eriogonum microthecum var. ambiguum
L. Ahart
2003-8-17
10518
Lassen
About 100 yards west of the cattle guard, on the southeast side of Smoke Creek Ranch Road, about 8 - 9 miles (air) northeast of Highway 395, about 30 miles (air) northeast of Susanville.
Comment
CHSC77222
Eriogonum microthecum var. ambiguum
G. Schoolcraft
1999-7-28
2871
Lassen
Ridge on east end of Skedaddle Mtns.
2133
Comment
SD64343
Eriogonum microthecum var. laxiflorum
D. F. Howe
1966-8-24
Lassen
39 miles northeast of Litchfield on hwy #395
1676
Comment
UC584343
Eriogonum microthecum var. laxiflorum
G. L. Stebbins Jr. and J. A. Jenkins
1937-7-8
2223
Lassen
6 mi s Ravensdale
1660
Comment
NY803457
Eriogonum microthecum var. schoolcraftii
G. Schoolcraft
2003-8-21
2945
Lassen
Slopes below McKessick Peak ca. 10 miles southeast of Milford, CA-nwse
1504
Comment
SJSU9529
Eriogonum nudum var. deductum
J. W. Tilden
1960-6-27
1492
Lassen
Westwood
1524
Comment
SEINET5330904
Eriogonum nudum var. deductum
M. J. Williams, G. H. True; J. T. Howell
1973-6-28
73 -EV-1
Lassen
Elysian Valley.
1372
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
OBI76957
Eriogonum nudum var. nudum
Anthony Baniaga
2011-7-5
420
Lassen
Lassen Natl Forest, e of Willard Crk. Fredonyer Pass quad. T29NR10E sec 25 NE of NW
1485
Comment
SBBG94822
Eriogonum nudum var. nudum
G. K. Helmkamp
1990-9-23
G- 11
Lassen
N of Ravendale
1676
Comment
SEINET523088
Eriogonum nudum var. nudum
Paul Opler
2002-6-22
Lassen
Lauffman, W of Milfold.
Comment
JEPS126468
Eriogonum nudum var. pubiflorum
Lillie Pennington, Jillian Pastick, Rachael Payer, Andrea Stuemsky
2015-8-27
CA 350 -071
Lassen
Along Rice Canyon Road and into Rice Canyon.
Comment
JEPS94558
Eriogonum nudum var. pubiflorum
Vernon Oswald and Lowell Ahart
1997-6-24
8595
Lassen
s of Susanville (on the 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
UC1032332
Eriogonum nudum var. pubiflorum
A. Simontacchi
1940-7-2
931
Lassen
6. 2 mi ene Ebey Lake; Lssen National Forest, Halls Flar Quadrangle
Comment
NY762344
Eriogonum nudum var. pubiflorum
B. Anderson
1986-7-9
3129
Lassen
Road to Day, about 2.4 km north of Route 299
1065
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
UC54767
Eriogonum ovalifolium var. ovalifolium
J. Burtt Davy
Jun 17 1897-Jun 24 1897
Lassen
Amadee Honey Lake Valley, Amadee
Comment
OBI76940
Eriogonum ovalifolium var. purpureum
Anthony Baniaga
2011-7-9
439
Lassen
Lassen Natl forest. Windy Hollow. Pine Crk Valley quad. T31N R8E sec 15 NE of SE
1716
Comment
HSC63563
Eriogonum prociduum
Thomas W. Nelson, Jane P. Nelson
1980-7-6
6004
Lassen
Along Adin-Madelin Rd., 16 mi. E of Adin in Ash Valley
1555
Comment
CHSC68901
Eriogonum spergulinum var. reddingianum
Vernon Oswald; Lowell Ahart
1997-6-24
8596
Lassen
South of Susanville on the north side of Diamond Mtn. on Forest Rd. 29N43, 1.2 miles east of Gold Run Rd. (29N10). Along the edge of the road.
1685
Comment
UC412800
Eriogonum spergulinum var. reddingianum
Franklin P. Nutting
Lassen
Pine Creek
Comment
RSA780044
Eriogonum sphaerocephalum
Elizabeth A. Kempton
2007-8-15
512
Lassen
Near Basehill landfill
1282
Comment
CHSC110769
Eriogonum sphaerocephalum var. halimioides
Dean Wm. Taylor
2012-5-16
21200 b
Lassen
Modoc Plateau. Ca. 1 air mile S of Stanford Camp (ca. 3 air mi SSE of Big Jack Lake).
1920
Comment
RSA700051
Eriogonum sphaerocephalum var. halimioides
L. P. Janeway
2001-6-20
7190
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. 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
SEINET530720
Eriogonum sphaerocephalum var. halimioides
Paul Opler
2006-6-9
Lassen
Ash Valley Rd., 5.9 mi E of Adin.
1423
Comment
UC1924212
Eriogonum sphaerocephalum var. halimioides
Debra Valov
2004-6-9
2004271
Lassen
Hwy 139 c. Mile marker 37
1650
Comment
SEINET11261405
Eriogonum sphaerocephalum var. halimioides
Arthur Cronquist, Arthur H. Holmgren
1959-6-18
8482
Lassen
5 miles south of Adin.; 0
Comment
CHSC6224
Eriogonum strictum var. anserinum
A. Santos
1946-6-17
Lassen
Mt. Fredonyer road. Eagle Lake.
2133
Comment
JEPS107833
Eriogonum strictum var. anserinum
Lowell Ahart, John Dittes
2005-6-2
11984
Lassen
North side of the poor dirt road, Long Valley, about 4 1/2 miles (air) northeast of the intersection of Scott Road and Highway 70, 5.8 miles (air) northwest of Hallelujah Junction
1430
Comment
JEPS93829
Eriogonum strictum var. anserinum
Vernon H. Oswald and Lowell Ahart
1998-6-4
9147
Lassen
s of Constantia (Spur road on n side of Red Rock Road 0.6 mi e of Highway 395); Red Rock Road
1389
Comment
CHSC25912
Eriogonum strictum var. proliferum
K. R. Stern
1967-7-1
2435
Lassen
California State Hwy. 139, 14 mi. N of Susanville.
Comment
CAS-BOT-BC267886
Eriogonum umbellatum
Ralph K. Gierisch
1968-7-11
3346
Lassen
Harvey Valley
1676
Comment
CHSC86975
Eriogonum umbellatum var. modocense
L. P. Janeway
2001-6-20
7203
Lassen
High Cascade Range. 0.6 km east of Road 111 and 1.3 km south of Road 35N60; about 11 km west of Little Valley, 3.9 km east-northeast of Coble Mountain.
1402
Comment
HSC17376
Eriogonum umbellatum var. modocense
M. T. Milligan
1964-8-6
202
Lassen
Eagle Lake, near shore at Eagle Lake General Store.
1677
Comment
RSA0092311
Eriogonum umbellatum var. modocense
Jim M. Andre, Tasha La Doux, Senna Andre, Elias Andre
2013-7-12
31429
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
RSA700052
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. 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
UC412898
Eriogonum umbellatum var. modocense
W. E. Bryant
Aug. 1888
Lassen
Eagle Lake
Comment
CAS-BOT-BC265091
Eriogonum umbellatum var. nevadense
John Thomas Howell
1976-7-19
51951
Lassen
Southwest of Susanville on Gold Run Road, Sierra Nevada
1341
Comment
CDA22684
Eriogonum umbellatum var. nevadense
S. E. Piper
1943-7-2
Lassen
0.5 mile east of Herlong.
0
Comment
CHSC14170
Eriogonum umbellatum var. nevadense
K. R. Stern
1974-6-26
5867
Lassen
E end of Champs Flat.
Comment
CHSC4834
Eriogonum umbellatum var. nevadense
R. Carter
1967-7-13
597
Lassen
Collected behind water tank ca. 599 yds ne of Eagle Lake Biology Station, on e shore.
1524
Comment
CHSC68902
Eriogonum umbellatum var. nevadense
Vernon Oswald; Lowell Ahart
1997-6-24
8640
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
JEPS97420
Eriogonum umbellatum var. nevadense
Vernon H. Oswald and L. Ahart
1995-6-19
6888
Lassen
T30N R15E NW1/4 SE1/4 Sect. 14, 4430 ft, Modoc Plateau, Sagebrush Scrub. Between Litchfield and Ravendale on Smoke Creek Ranch Rd., 1.7 mi e of Hwy. 395. Loosely cespitose perennial
1350
Comment
NY399395
Eriogonum umbellatum var. nevadense
G. Schoolcraft
1982-7-7
771
Lassen
Fort Sage Mountains
1950.7
Comment
RSA62913
Eriogonum umbellatum var. nevadense
B. J. Cox, David B. Dunn
1971-6-2
2605
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
SD52313
Eriogonum umbellatum var. nevadense
F. Stephens
1894-7-7
9210
Lassen
Pete's Valley
Comment
UC1137291
Eriogonum umbellatum var. nevadense
K. E. Bradshaw
1939-5-27
237
Lassen
Black Mt. Experimental Forest Plot 39-1 Lassen National Forest, Halls Flat Quadrangle
1752
Comment
SJSU9145
Eriogonum umbellatum var. polyanthum
J. W. Tilden
1960-6-27
1497
Lassen
outskirts of Westwood at foot of Moonlight Rd
1524
Comment
CAS-BOT-BC262365
Eriogonum vimineum
Marcus E. Jones
1897-6-18
s.n.
Lassen
Chat
1524
Comment
CHSC12414
Eriogonum vimineum
Anne Linda Brisk
1969-6-21
16
Lassen
1/4 mi NE of ELBS.
1554
Comment
CHSC12488
Eriogonum vimineum
Carol Weld
1969-6-25
29
Lassen
Murrer's Meadow.
1524
Comment
CHSC64888
Eriogonum vimineum
Vernon H. Oswald; Lowell Ahart
1995-6-19
6882
Lassen
Between Litchfield and Ravendale on Smoke Creek Ranch Rd., 0.7 mi e of Hwy. 395. On the edges and bottom of an eroded dry wash on the n side of the road.
1371
Comment
JEPS117563
Eriogonum vimineum
Lowell Ahart, John Dittes
2010-7-31
17018
Lassen
On the north side of the road, about 10 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
JEPS127353
Eriogonum vimineum
Lowell Ahart, John Dittes
2016-7-13
21132
Lassen
180 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.
Comment
CDA38977
Eriophorum gracile
Gordon Leppig and T. LaBanca
1997-6-29
531
Lassen
Blue Lake Ranch; Modoc National Forest.
Comment
HSC95194
Eriophorum gracile
Gordon Leppig, Tony 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
CAS-BOT-BC300947
Eriophyllum lanatum
B. J. Hammerly
1941-6-20
43
Lassen
8 mi. S.-E. of Likely on Blue Lake road
1676
Comment
CHSC12492
Eriophyllum lanatum
Carol Weld
1969-6-20
9
Lassen
Dean's Meadow.
1950
Comment
CHSC4262
Eriophyllum lanatum
K. R. Stern
1967-6-24
2414
Lassen
Murrer Meadow Road, ca. 3 mi. E of Eagle Lake Biological Station.
1554
Comment
JEPS103221
Eriophyllum lanatum var. achilleoides
G. Schoolcraft
1991-7-30
2199
Lassen
E. slope of widow mountain
1859
Comment
POM253262
Eriophyllum lanatum var. achilleoides
A. A. Heller
1938-6-23
15197
Lassen
Ridge east of Fredonyer Pass on Highway 36
1646
Comment
CHSC7648
Eriophyllum lanatum var. grandiflorum
Beverley J. Wise
1969-5-15
18
Lassen
28.9 mi. east of Susanville on Hwy 395.
1554
Comment
CAS-BOT-BC301529
Eriophyllum lanatum var. integrifolium
H. D. Ripley; R. C. Barneby
1943-6-13
5717
Lassen
South of Johnstonville
1325
Comment
JEPS29200
Eriophyllum lanatum var. integrifolium
Lauramay T. Dempster
1961-6-17
1677
Lassen
about 8 mi n of Karlo Road junction with Hwy. 395
1584
Comment
POM83000
Eryngium alismifolium
Marcus E. Jones
1897-6-24
s.n.
Lassen
10 to 15 miles west from Amedee.
1219
Comment
UC1487306
Eryngium alismifolium
Yusuf Sheikh and Lincoln Constance
550
Lassen
U.C. Botanical Garden; ; alongside State Highway 395, 4.1 miles NNW of Termo, Madeline Plains
Comment
UCD18971
Eryngium alismifolium
Raymond D. Ratliff
1965-8-4
39
Lassen
Lassen National Forest, Harvey Valley Allotment (HV 78-73).
1706
Comment
CAS-BOT-BC150214
Erythranthe
Clare B. Hardham
1969-8-28
17453 G
Lassen
West of Janesville
Comment
SEINET8340800
Erythranthe floribunda
Unknown
2005-6-2
11970
Lassen
Long Valley, about 4 1/2 miles (air) northweast of the intersection of Scott Road and Highway 70, 5.7 miles (air) northwest of Hallelujah Junction.
1408
Comment
CHSC30599
Erythranthe guttata
Marc Held
1972-6-23
9
Lassen
Upper Murrer's Meadow along spring red stream. 4.5 miles south-east of E.L.B.S. (approx.).
Comment
SEINET14291746
Erythranthe guttata
C. G. Gulling
1905-1
1546
Lassen
Big Meadows.
Comment
SD7073
Erythranthe lewisii
Mrs. R. M. Austin
1877-1
Lassen
Spanish Peak
Comment
CAS-BOT-BC502813
Erythronium purpurascens
Alice Eastwood
1912-8-22
s.n.
Lassen
Trail from Morgan Spring to Lassen Butte
Comment
CAS-BOT-BC403150
Eschscholzia californica
A. M. Vollmer; L. Beane
1953-7-1
103
Lassen
Along Halls Flat road, beginning 6 miles west of Susanville to McArthur
1554
Comment
JEPS51782
Eschscholzia californica
W. L. Jepson
1918-8-2
7774
Lassen
Beckwith Pass
1463
Comment
RSA719891
Eschscholzia californica
Michael A. Vincent, K. Levings
2006-7-29
12913
Lassen
Along Rt. 395, ca. 6 miles SE of Johnstonville.
Comment
RSA445591
Eschscholzia californica
J. D. Detzer, M. Sacks
1977-7-28
35
Lassen
0.5 km S of Hwy 395, 4 miles W of Milford.
1386
Comment
UCR55538
Euclidium syriacum
June McCaskill
1966-6-5
712
Lassen
Frosty Acres Ranch, at end of Albaugh Road (c. 2 mi south of U.S. Hwy 299 and 4 mi SW of Adin)
1280
Comment
CDA3709
Euclidium syriacum
Lee Wheeler
1955-6-24
Lassen
Bieber area.
0
Comment
SEINET11989048
Euclidium syriacum
Unknown
1966-1
712
Lassen
Frosty Acres ranch, at end of Albaugh Rd, 0.6 mi W of jct with Bassett Rd (ca 2 mi S of US 299 & 4
1280
Comment
SEINET10848005
Euphorbia peplus
Jeffrey Huber
1971-6-11
Huber 333
Lassen
1 mi. W of Westwood, on CA Hwy. 36.
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
NY1001166
Euphorbia spathulata
A. Tiehm
1984-6-7
8594
Lassen
Flats on the northwest side of Shaffer Mountain, 9 air miles north-northwest of Litchfield
1387
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
JEPS31883
Eurybia integrifolia
Brown and Wieslander
1922-7-30
14
Lassen
Martin Springs Eagle Lake
Comment
CAS-BOT-BC312106
Eurybia integrifolia
Alice Eastwood
1912-8-22
1883
Lassen
Morgans Springs, Lassen Butte Region
Comment
HSC29817
Festuca idahoensis
D. H. Norris, T. Nelson, S. Dowty
1971-6-22
19186
Lassen
Harvey Valley near Cone Springs
Comment
JEPS114856
Festuca idahoensis
Lowell Ahart, John Dittes
2008-6-19
14880
Lassen
about 100 yds E of Willow Creek, about 120 yds NE of Hwy 139, near Forest Road 36N02, about 19.6 mi E-SE of Bieber
1578
Comment
JEPS17718
Festuca idahoensis
Rimo Bacigalupi with G. T. Robbins
1955-7-19
5371
Lassen
10.3 mi se Adin (along Ash Valley road between Adin and Madeline)
1524
Comment
UC1024801
Festuca idahoensis
Leo Whitney
1935-6-23
3294
Lassen
Camp 10, Fruit Grower's Supply Company Lassen National Forest
Comment
UC1026711
Festuca idahoensis
Leo Whitney
1935-6-23
3295
Lassen
Camp 10, Fruit Grower's Supply Company
Comment
UCD65974
Festuca idahoensis
L. Whitney
1935-6-17
3268
Lassen
Lassen National Forest, Fruit Grower's Supply Company, Camp 10.
Comment
UCR17288
Festuca idahoensis
Frank C. Vasek
1975-7-11
750711- 04
Lassen
Modoc Plateau, State Hwy 139, [Said Valley] 2 mi north of Grasshopper Valley at the junction with Termo Rd.
1650
Comment
UCD66348
Festuca rubra
L. Whitney
1933-8-3
Lassen
Slate Creek.
1920
Comment
CHSC68892
Floerkea proserpinacoides
Vernon H. Oswald; Lowell Ahart
1997-6-24
8650
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. Meadow.
2249
Comment
JEPS97399
Floerkea proserpinacoides
Vernon H. Oswald and L. Ahart
1995-7-24
7127
Lassen
T30N R8E SE1/4 SW1/4 Sec. 7, 6300 ft, High Cascade Range, Red Fir Forest. N of Lake Almanor and ca. 2 mi SE of Silver Lake on Forest Route 10, 0.8 mi SW of its jct. with Forest Road 30N21
1920
Comment
CAS-BOT-BC459438
Fragaria virginiana subsp. platypetala
Louella Bass
1973-4-13
15
Lassen
Elysian Valley, Sierra Nevada
1325
Comment
POM76343
Fraxinus dipetala
C. C. Bruce
1897-7-3
s.n.
Lassen
Janesville(?), below Prattville
1372
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
RSA517307
Galium multiflorum
Barbara Ertter, Gary Schoolcraft
1987-6-16
7175
Lassen
Skeeadaddle Mtns on the NE side of Honey Lake. E side of road over saddle on W side of range.
1646
Comment
UC1025088
Galium trifidum
Leo Whitney
1934-7-27
1745
Lassen
near Bridge Creek (ca 7-8 mi sw of Eagle Lake); Lassen National Forest, Bridge Creek Camp
1737
Comment
OBI75867
Galium triflorum
Anthony Baniaga
2011-8-9
493
Lassen
Lassen Natl Forest. About 1/2 mi W of Griffith Hill, S of 30N21. Swain Mtn quad T30N R8E sec 8 NW of NW
1950
Comment
HSC87162
Gayophytum diffusum
J. D. Prouty
1978-6-27
1
Lassen
E of Eagle Lake, Black Mt. Rd., SE of Eagle Lake Field Station
1616
Comment
SBBG61277
Gayophytum diffusum subsp. parviflorum
S. W. Hutchinson
-Jun-1925
735
Lassen
Eagle Lake
1554
Comment
RSA0004469
Gayophytum helleri var. erosulatum
W. L. Jepson
1918-8-2
7754
Lassen
Beckwith Pass
1463
Comment
UC1122567
Gayophytum heterozygum
H. P. Hagge
1929-9-12
26
Lassen
Logan Mtn. Eagle Lake Quadrangle
Comment
UC1122617
Gayophytum heterozygum
A. Simontacchi
1940-6-24
892
Lassen
0.2 mi nnw Halls Flat Ranger Station; Lassen National Forest, Halls Flat Quadrangle
Comment
UCSB64021
Gayophytum humile
Ahart, Lowell; Howell, John
1974-7-9
Lassen
Near S edge of Eagle Lake
1584
Comment
CHSC93686
Gayophytum racemosum
Lowell Ahart; John Dittes
2005-6-1
11884
Lassen
Along a poor dirt road, west of Scott Road, Long Valley, about 2 1/2 miles (air) northwest of the intersection of Scott Road and Highway 70, 4.0 miles (air) northwest of Hallelujah Junction.
1438
Comment
UC107796
Gayophytum racemosum
T. S. Brandegee
1892-7-1
Lassen
Susanville
Comment
UC1122614
Gayophytum racemosum
A. Simontacchi
1940-5-28
775
Lassen
3.2 mi wsw Patterson Mtn.; Lassen National Forest, Halls Flat Quadrangle
Comment
UC20276
Gayophytum ramosissimum
M. S. Baker and Frank Nutting
1894-7-6
Lassen
Dixey Valley
Comment
UCD55160
Gayophytum ramosissimum
Ellen Dean
2006-5-15
3048
Lassen
E of town of Susanville. Along C.R. A27 (Center Rd.) Grounds of California Correctional Facility.
1248
Comment
POM204159
Gayophytum ramosissimum
J. T. Howell
1934-6-10
11843
Lassen
Near Plumas Junction
Comment
CAS-BOT-BC217396
Gentiana affinis var. ovata
Louella Bass; E. Lagel
1976-9-1
s.n.
Lassen
Willard Creek near confluence with Susan River, Sierra Nevada
Comment
UC726252
Gentiana newberryi
A. A. Heller
1937-9-1
15341
Lassen
2 mi e Westwood
1524
Comment
HSC8435
Gentiana newberryi
Fred J. Kindel
1955-8-1
Lassen
Mt. Meadows Reservoir
Comment
JEPS28803
Gentianella amarella subsp. acuta
George W. Gillett
1957-9-4
1130
Lassen
0.25 mi below Widow Lake (near Butte Lake, on Widow Lake trail); Lassen Volcanic National Park
1905
Comment
JEPS61452
Geranium viscosissimum
Brown and Wieslander
1922-7-24
11
Lassen
Martin Springs Eagle Lake
Comment
UC1037272
Geranium viscosissimum
Leo Whitney
1934-7-10
1766
Lassen
ca 14 mi w Eagle Lake (near Harvey Valley Spring); Lassen National Forest, Harvey Valley
1737
Comment
NY1101445
Geranium viscosissimum var. nervosum
B. M. Bartholomew
1988-6-25
4372
Lassen
Long Valley, southern end of the Warner Mountains.
2080
Comment
JEPS96022
Geum triflorum
Vernon H. Oswald and Lowell Ahart
1996-6-24
7887
Lassen
2.5 mi s of Eagle Lake (Papoose Meadows located 0.5 mi e of Eagle Lake Road (A1), e side of the meadow n of the springs); Modoc Plateau, Papoose Meadows
1633
Comment
RSA0086586
Gilia
Bonnie C. Templeton
1938-4-15
s.n.
Lassen
Near Roscoe.
Comment
SEINET200250
Gilia capillaris
Herbert L. Mason
1955-7-31
14643
Lassen
Near Westwood Junction (railroad station 15mi west of Susanville)
Comment
JEPS94702
Gilia inconspicua
Vernon H. Oswald and Lowell Ahart
1998-5-22
9107
Lassen
5 mi nne of Doyle (Road to ORV parking area in Fort Sage Mountains, 0.5 mi e of Fort Sage Road); Fort Sage Mountains
1371
Comment
CAS-BOT-BC523868
Gilia modocensis
Alice Eastwood; John Thomas Howell
1940-6-16
8355
Lassen
Constantia
Comment
GMDRC7730
Gilia salticola
J. M. Andre, G. Clifton
1993-6-1
33406
Lassen
Modoc Plateau: along US Hwy 395, approx. 30 mi. NE of Susanville, north end of Secret Valley, SE end of Snowstorm Mtn, about 15 mi. SSE of Ravendale
1375
Comment
UCD149886
Gilia sinuata
William Anderson
1963-5-12
s.n.
Lassen
Honey Lake Valley.
Comment
OBI77053
Glyceria borealis
Anthony Baniaga
2011-7-23
463
Lassen
Lassen NF. Poison Lake. Poison Lake quad T32N R7E sec 4
1700
Comment
RSA0030654
Glyceria borealis
Anthony Baniaga
2011-7-23
463
Lassen
Lassen National Forest. Poison Lake.
1700
Comment
CAS-BOT-BC280600
Glyceria elata
John Thomas Howell
1976-7-19
51984
Lassen
Gold Run Creek southwest of Susanville
1386
Comment
UC1483863
Glyptopleura marginata
G. Schoolcraft
1980-5-9
232 A
Lassen
near state line s of High Rock Ranch
1219
Comment
CHSC117293
Gnaphalium palustre
Lowell Ahart; John Dittes
2016-7-13
21108
Lassen
Near where the drainage inters the pond, about 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 slope of Big Valley.
1289
Comment
CHSC99290
Gnaphalium palustre
Lowell Ahart; John Dittes
2008-6-22
15032
Lassen
About 120 yards west of the road levee, on the banks of 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
JEPS117581
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
CHSC106078
Gratiola ebracteata
Lowell Ahart; John Dittes
2010-7-31
17012
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
CHSC117521
Gratiola ebracteata
Lowell Ahart; John Dittes
2016-7-13
21129
Lassen
Nortewest edge of the pond, 30 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
CHSC29864
Gratiola ebracteata
Robin L. Ondricek
1978-8-9
123
Lassen
In mud at the ne edge of Mahogany Lake.
2057
Comment
JEPS28800
Gratiola ebracteata
George W. Gillett
1957-9-4
1126
Lassen
e margin Widow Lake (near inlet, Lassen Volcanic National Park); Lassen Volcanic National Park, e margin Widow Lake
2072
Comment
CHSC117760
Gratiola heterosepala
Virginia Dains; Joanne Crawford
2016-6-9
Lassen
Modoc Plateau. BLM Eagle Lake Field Office. 8 km southeast of Horse Lake, 23 km northwest of Shaffer Mtn.
1470
Comment
CHSC5232
Grayia spinosa
J. E. Wolf
1946-6-28
Lassen
Eagle Lake. Horse Lake.
1554
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
CHSC117540
Grindelia nana
Lowell Ahart; John Dittes
2016-7-13
21197
Lassen
Drying strand of the pond near the overflow, 30 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
CAS-BOT-BC304680
Grindelia squarrosa
Margaret Williams
1974-8-4
74 -L-84
Lassen
Near Hallelujah Junction, west of Hwy 395 and south of Hwy 70
1493
Comment
CDA34391
Gypsophila paniculata
Anonymous
1987-6-17
Lassen
Off US 395 near Janesville.
0
Comment
SEINET3928294
Hackelia californica
Anthony Baniaga
2011-7-9
440
Lassen
Lassen National Forest. Windy Hollow. Pine Creek Valley quadrangle.; 0
1720
Comment
UC1483791
Hackelia cusickii
Teresa Prendusi
1980-7-9
Lassen
36 m n of Susanville (on Hwy 139 and 4 m w); Grasshopper Ridge
1737
Comment
UC1583977
Hackelia cusickii
G. Schoolcraft
1990-7-2
2099
Lassen
sw slopes of Cold Spring Mountain
1950
Comment
OBI4720
Halogeton glomeratus
T. C. Fuller
1962-8-28
9475
Lassen
Herlong Siding, Hoeny Lake Valley
Comment
CAS-BOT-BC305408
Helianthus annuus
Louella Bass
1980-8-3
s.n.
Lassen
Standish
Comment
UC32309
Helianthus cusickii
M. S. Baker and Frank Nutting
1894-7-30
Lassen
Silver Lake
Comment
CDA6549
Helianthus cusickii
T. C. Fuller
1959-7-7
2910
Lassen
Highway 395 and railroad, 5 miles north of road to Wendel.
0
Comment
CHSC91196
Hemizonella minima
Lowell Ahart; John Dittes
2005-6-2
11940
Lassen
Along a poor dirt road, 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.
1600
Comment
UC174811
Hemizonella minima
T. S. Brandegee
1892-6-26
Lassen
Milford
Comment
POM360351
Hemizonia lobbii
J. T. Howell
1934-7-3
12380
Lassen
Big Valley, near Bieber
Comment
CHSC68750
Hesperochiron californicus
Vernon H. Oswald; Lowell Ahart
1997-5-27
8525
Lassen
Coyote Flat on Forest Route 38N04 4.7 mi northeast of Hwy. 139.
1798
Comment
CHSC7686
Hesperochiron californicus
Beverley J. Wise
1969-4-20
45
Lassen
14.6 mi. north of Susanville on Hwy 139 (Willow Creek Valley).
1463
Comment
HSC65632
Hesperochiron californicus
J. P. Smith, J. O. Sawyer
1971-5-23
4661
Lassen
Along Hwy. 139, 15 mi. S of jct. with rd. to Thermo
Comment
JEPS1678
Hesperochiron californicus
G. S. Crew and C. S. Robinson
1927-1
10
Lassen
<Norval> Flat near Westwood Junction; Lassen Forest
1747
Comment
UCD55304
Hesperochiron californicus
Ellen Dean; Gary Schoolcraft
2006-5-16
3133
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.
1251
Comment
CHSC7685
Hesperochiron pumilus
Beverley J. Wise
1969-5-9
46
Lassen
10.5 mi. west of Susanville on Forest serv. 8246 off Hwy. 36.
1524
Comment
UC1211991
Hesperolinon micranthum
Lauramay T. Dempster
1961-6-17
1670
Lassen
creek about 4 mi sw junction with Richmond Road (s of Susanville); Gold Run Creek
Comment
UC17262
Hesperolinon micranthum
M. S. Baker and Frank Nutting
1894-7-2
Lassen
s side Dixey Mts.
Comment
POM87379
Hesperolinon micranthum
Marcus E. Jones
1897-6-24
s.n.
Lassen
10 to 15 miles west from Amedee.
1220
Comment
SEINET10936270
Hesperolinon micranthum
Mary Susan Taylor
1974-1
Taylor 272
Lassen
Vicinity of Eagle Lake, ca. 13 mi NW of Susanville.
Comment
SJSU7861
Hesperolinon micranthum
V. Hardham
1965-7-12
127
Lassen
Willow Cr c. 13 mi SE of Adin (Siskiyou County) on State Rt 139
1463
Comment
JEPS96087
Heterocodon rariflorum
Vernon H. Oswald and Lowell Ahart
1996-6-24
7859
Lassen
2.5 mi s Eagle Lake (ca 0.5 mi e of Eagle Lake Rd, w side Papoose Meadows, ca 0.4 mi s of the cabins); Modoc Plateau, Papoose Meadows
1633
Comment
CAS-BOT-BC310910
Heterotheca villosa
Margaret Williams
1974-7-27
74- 61 -61
Lassen
West of Hwy 395 and south of Hwy 70. Near Hallelujah Junction
1493
Comment
UC73894
Heterotheca villosa var. minor
J. Burtt Davy
Jun 17 1897-Jun 24 1897
Lassen
Long Valley; Honey Lake Valley
Comment
POM34557
Heterotheca villosa var. minor
F. H. Hillman
1897-7-12
s.n.
Lassen
Chat
Comment
CAS-BOT-BC312418
Hieracium albiflorum
John Thomas Howell; Gordon H. True
1973-8-1
50220
Lassen
Headwaters of Baxter Creek, east slope of Diamond Range south of Susanville
2164
Comment
CHSC5212
Hieracium albiflorum
M. West
1946-7-12
Lassen
Silver Lake.
1981
Comment
UC1069609
Hieracium albiflorum
A. Simontacchi
1940-7-2
889
Lassen
6.2 mi ene Ebey Lake; Lassen National Forest, Halls Flat Quadrangle
Comment
UC135018
Hieracium albiflorum
T. S. Brandegee
1892-7-2
s. n.
Lassen
Susanville
Comment
UC92024
Hieracium albiflorum
unknown
1892-7-26
Lassen
Milford
Comment
OBI77185
Hieracium greenei
Anthony Baniaga
2011-7-18
454
Lassen
Lassen NF.2-1/4 mi ESE of Signal Butte. Swains Hole quad. T32N R6E sec 9 NE of SW
1700
Comment
UC32790
Hieracium horridum
M. S. Baker and Frank Nutting
1894-7-30
Lassen
Silver Lake
Comment
JEPS28669
Hieracium nudicaule
George W. Gillett
1957-7-24
894
Lassen
between Cameron Meadow and Snag Lake; Lassen Volcanic National Park
1950
Comment
SEINET11262512
Hieracium nudicaule
Robert L. Johnson, Mikel R. Stevens
2015-7-10
3938
Lassen
Southern Cascade Range. North side of Westwood 0.3 rd mi west of jct with Mooney Rd on CA-36. N side of rd.; 0
1564
Comment
UCD18951
Hieracium nudicaule
Raymond D. Ratliff
1965-8-5
43
Lassen
Lassen National Forest, Harvey Valley Allot. (HV 20-14 'area').
1725
Comment
CHSC65298
Hieracium scouleri var. scouleri
Vernon H. Oswald
1995-8-21
7206
Lassen
Warner Mtns. Blue Lake located ca. 13 mi SE of Likely. On the W side of the lake.
1859
Comment
CAS-BOT-BC280698
Holcus lanatus
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49501
Lassen
Elysian Valley, west of Janesville
1325
Comment
UCR7790
Holcus lanatus
Marilyn Malin
1968-7-11
261
Lassen
West side of Hwy 395 on west side of Honey Lake
1280
Comment Read comments Sep 19 2013
JEPS87501
Holosteum umbellatum subsp. umbellatum
Vernon H. Oswald and Lowell Ahart
1993-5-12
5390
Lassen
Butte Lake Rd. 1.4 mi s Hwy 44 (between Old Station and Poison Lake); Butte Lake Rd., between Old Station and Poison Lake
1652
Comment
UC1024802
Hordeum brachyantherum subsp. brachyantherum
Leo Whitney
1935-6-23
3291
Lassen
Camp 10 Fruit Grower's Supply Company Lassen National Forest
Comment
UC1100324
Hordeum brachyantherum subsp. brachyantherum
Malcolm A. Nobs, S. Galen Smith
1949-7-21
1055
Lassen
4 mi N of Madelaine
Comment
UC506970
Hordeum brachyantherum subsp. brachyantherum
George A. Fischer and Irwin H. Johnson
1933-7-12
F 232
Lassen
Patterson Flat
1737
Comment
UC53616
Hordeum brachyantherum subsp. brachyantherum
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3366
Lassen
Adobe Meadows Honey Lake Valley, Adobe Meadows
Comment
CHSC65367
Hordeum jubatum
Vernon H. Oswald; Lowell Ahart
1995-8-14
7189
Lassen
Modoc Plateau. Horse Lake Rd. (Lassen 536) at the railroad crossing 1 mi W of Hwy. 395, N of Susanville. Roadside pond.
1645
Comment
UC570171
Hordeum jubatum
H. S. Yates
1936-8-11
6075
Lassen
Baxter Creek Susanville Quad., Baxter Creek
1280
Comment
UCD85755
Hordeum jubatum
August L. Hormay
1932-8-12
s.n.
Lassen
Lassen National Forest. South E edge of Eagle Lake.
Comment
UC1483792
Horkelia fusca subsp. tenella
Teresa Prendusi
1980-7-1
Lassen
Littel Antelope Valley, Bureau of Land Management
1676
Comment
UC545661
Horkelia fusca subsp. tenella
John Thomas Howell
1934-7-6
12433
Lassen
Harvey Valley
Comment
CAS-BOT-BC536179
Horkelia fusca var. parviflora
M. S. Taylor; B. Hammond
1982-7-8
4789
Lassen
Along spur road ca. 1/3 mile west of Scott Road, ca. 1.5 miles NE of Beckwourth Pass
1463
Comment
OBI48149
Hydrophyllum capitatum var. alpinum
Rhonda Riggins
1989-4-27
1647
Lassen
US 395, 1.1 mi N Madeline, 8.8 mi S Modoc Co line
1676
Comment
NY170062
Hymenolobus procumbens
A. Tiehm
1986-5-12
10350
Lassen
1 road mi W of the state line on the dirt road from highway 395 to Smoke Creek, south side of Rush Creek.
1341.1
Comment
RSA88526
Hypericum androsaemum
P. H. Raven
1951-7-27
3627
Lassen
Lake Ediya
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
CHSC5266
Hypericum formosum var. scouleri
J. Wolf
1946-6-20
Lassen
Eagle Lake, Grasshopper Valley.
1624
Comment
POM86608
Hypericum formosum var. scouleri
Marcus E. Jones
1897-6-18
s.n.
Lassen
Chat. [also Chats, a former settlement]
1524
Comment Read comments Mar 6 2011
SD130459
Hypericum formosum var. scouleri
John Thomas Howell, Gordon H. True and Margaret Williams
1973-6-28
49436
Lassen
Elysian Valley, west of Janesville.
1326
Comment
CDA36537
Hypericum formosum var. scouleri
T. C. Fuller
1959-7-6
4304
Lassen
Hwy. 36, about 1 mi. north of Westwood.
0
Comment
CHSC72317
Ipomopsis congesta subsp. palmifrons
L. P. Janeway; Glenn Clifton
1998-7-9
5728
Lassen
Ridgetop saddle 1.0 mi east of Diamond Mtn.
2215
Comment
UC117143
Iris missouriensis
Mrs. R. M. Austin
1879-1
302
Lassen
Eagle Lake
Comment
CAS-BOT-BC69982
Isoetes bolanderi
John Thomas Howell
1960-8-23
36431
Lassen
Emerald Lake.
2468
Comment
CHSC59161
Isoetes howellii
Vernon H. Oswald; Lowell Ahart
1992-9-15
5215
Lassen
Island Lake located N of Bonte Pk. And ca. 1.5 mi W of Juniper Lake campgrounds.
2164
Comment
CHSC60804
Isoetes howellii
Vernon H. Oswald
1993-6-28
5622
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
HSC28862
Iva axillaris
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19298
Lassen
Along Hwy. 395, 4 mi. E of Standish
Comment
JEPS30423
Iva axillaris subsp. robustior
Peter H. Raven with Otto T. Solbrig
1958-6-17
13265
Lassen
11.8 mi ne Litchfield (along United States Highway 395)
Comment
NY833698
Ivesia baileyi
G. Schoolcraft
1983-6-28
1032
Lassen
No. 2 canyon of Amedee Mountain
1707
Comment
CHSC68763
Ivesia paniculata
Vernon H. Oswald; Lowell Ahart
1997-5-27
8494
Lassen
North of Susanville on Forest Route 38N04 (between Hwy. 139 near Willow Creek Guard Station and Coyote Flat), 0.1 mi east of Hwy. 139. On the north side of the creek paralleling the road.
1546
Comment
NY436061
Ivesia paniculata
T. W. Nelson
1980-7-6
5984
Lassen
Ash Valley along Adin-Madeline Rd., 16 miles E of Adin.
1554.5
Comment
SEINET3860245
Ivesia paniculata
Barbara Kelly
1977-8-9
559
Lassen
Along dirt road from Adin 16 1/4 mi W of Madeline.; 0
Comment
UC1567359
Ivesia paniculata
G. Schoolcraft
1980-7-14
306
Lassen
w of Madeline; Ash Valley
1548
Comment
UC1594844
Ivesia paniculata
J. Stephen Shelly and Ginger V. King
1985-6-29
1029
Lassen
Adin-Madeline Rd. Ash Valley (15.4 mi w of U.S. Hwy 395)
1554
Comment
RSA0005626
Ivesia paniculata
Thomas W. Nelson, J. P. Nelson
1980-7-6
5984
Lassen
Ash Valley along Adin-Madeline Rd. 16 miles east of Adin.
1555
Comment
CAS-BOT-BC109935
Juncus
John Thomas Howell
1976-7-19
51988
Lassen
Sierra Nevada. On Gold Creek southwest of Susanville.
1386
Comment
UC2481
Juncus balticus
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3277
Lassen
Tule Confederacy Honey Lake Valley
Comment
UC2490
Juncus balticus
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3280
Lassen
Tule Confederacy Honey Lake Valley
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
CHSC66275
Juncus bufonius var. occidentalis
Vernon H. Oswald; Lowell Ahart
1996-6-24
7838
Lassen
Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake. Modoc Plateau. On the W side of the meadow just S of the cabins.
1633
Comment
POM261438
Juncus bufonius var. occidentalis
Alice Eastwood, John Thomas Howell
1940-6-16
8339
Lassen
Janesville.
Comment
RSA26255
Juncus bufonius var. occidentalis
Alice Eastwood, John Thomas Howell
1940-6-11
7972
Lassen
Big Valley Mountains.
Comment
JEPS67093
Juncus confusus
Brown and Wieslander
1922-7-23
69
Lassen
Martin Springs Eagle Lake
Comment
RSA129757
Juncus confusus
L. R. Short, J. Warren
1936-6-10
S- 418
Lassen
MDM, Burgess Spr. Exp. Range.
1857
Comment
CHSC13585
Juncus ensifolius
J. Pitts
1972-6-22
254
Lassen
140 yds. ne of Eagle Lake Field Station above marsh.
Comment
CHSC101039
Juncus hemiendytus var. hemiendytus
John Dittes
2008-5-22
1521
Lassen
Modoc Plateau; ca. 15.3 air miles southeast of Adin, ca. 3.4 air miles east of Hayden Hill, ca 480 feet north of intersection of Hwy 139 and FS Road 36N02; open, rocky volcanic toe-slope on northeast side of Willow Creek.
482
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
HSC97877
Juncus hemiendytus var. hemiendytus
Vernon H. Oswald, L. Ahart
1996-6-24
7852
Lassen
Papoose Meadows, 0.5 mi. E of Eagle Lake Rd. (A1), 2.5 mi. S of Eagle Lake, Modoc Plateau
1634
Comment
UC1100948
Juncus mexicanus
Malcolm A. Nobs and S. Galen Smith
1947-8-1
8230
Lassen
irrigation ditch running sw into State Fish & Game nesting area on w end of Section 19 Madeline Plain
Comment
UC2488
Juncus mexicanus
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3284
Lassen
Tule Confederacy Honey Lake Valley
Comment
UC506935
Juncus mexicanus
George A. Fischer and Irwin H. Johnson
1933-7-12
F- 238
Lassen
Patterson Flat Lassen National Forest
1737
Comment
SEINET10533379
Juncus mexicanus
Douglas G. LeDoux, David B. Dunn
1975-5-25
LeDoux 791
Lassen
Collected 3 miles n of milford on hwy. 395 At honey lake campgrounds
Comment
CHSC29855
Juncus nevadensis
Kyle Brown
1978-7-10
95
Lassen
In meadow at the base of the dam in Murrers Upper Meadow.
1548
Comment
CHSC96731
Juncus nevadensis
Gordon Leppig
1998-7-12
946
Lassen
Modoc National Forest, Blue Lake Ranch. Peatland in large meadow a complex.
1970
Comment
HSC95328
Juncus nevadensis
Gordon Leppig
1998-7-12
946
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
UC1142942
Juncus nevadensis
A. L. Hormay
1941-6-18
3
Lassen
Little Harvey Valley Lassen National Forest
1676
Comment
UC1601782
Juncus nevadensis
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3279
Lassen
Tule Confederacy Honey Lake Valley
Comment
UC1142959
Juncus orthophyllus
A. L. Hormay
1941-6-25
30
Lassen
Westwood Junction Lassen National Forest
1737
Comment
HSC103618
Juncus orthophyllus
Thomas W. Nelson, Jane Nelson
1985-8-10
8008
Lassen
Along north side of Silver Lake
1829
Comment
UC1601837
Juncus parryi
M. S. Baker and Frank Nutting
1894-7-30
Lassen
Silver Lake
Comment
UC1133742
Juncus tenuis
Robert W. Gardner
1939-6-28
G- 33
Lassen
Burgess Spring Experimental Range Halls Flat Quad.
1706
Comment
JEPS107949
Juncus tiehmii
Lowell Ahart, John Dittes
2005-6-2
11959
Lassen
Meadow, along a poor dirt road, about 1 mile east of the Anderson Ranch home, 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
UCD168847
Juncus trilocularis
Barbara L. Wilson; P. Zika
2011-8-7
16807
Lassen
Highway 44 near mile post 12.50, at junction with road 32N22 and road to Harvey Valley.
1740
Comment
HSC1271
Juniperus occidentalis
R. H. Berg
1963-4-6
37
Lassen
10 mi. N of Susanville
Comment
JEPS126564
Juniperus occidentalis
Lowell Ahart, John Dittes
2016-6-7
20974
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 miles (air) southwest of Adin, hills at the southern slope of Big Valley.
Comment
UCD22742
Juniperus occidentalis
Todd Sloat
1988-6-4
16
Lassen
NE California. Pittville, CA.
1036
Comment Read comments Apr 29 2013
UCR3791
Juniperus occidentalis var. occidentalis
Frank C. Vasek
1964-9-12
640912- 09
Lassen
US Hwy 395, at Hwy rest area 12.2 mi south of Ravendale
Comment
SEINET11064452
Juniperus osteosperma
D. Charlet
1993-7-13
1581
Lassen
Fort Sage Mountains at OHV trailhead.
1490
Comment
SEINET3865186
Juniperus osteosperma
Noel H. Holmgren, Patricia K. Holmgren
1970-7-28
4625
Lassen
North end of Peterson Mountain, near US 395, 8 miles north of Halleluja Junction (junction with Calif. 70).; 0
1524
Comment
CHSC29939
Kelloggia galioides
Robin L. Ondricek
1978-6-14
55
Lassen
1.8 mi E of Coleman Rd. on Lassen Co. Rd.
1950
Comment
JEPS12481
Kelloggia galioides
Brown and Wieslander
1922-7-18
53
Lassen
near Susanville (Martins Springs); Martins Springs
Comment
POM68596
Kelloggia galioides
Marcus E. Jones
1897-6-26
s.n.
Lassen
Susanville, Perkin's Ranch.
1463
Comment
RSA121074
Kelloggia galioides
G. A. Fischer, Irwin H. Johnson
1933-7-14
F- 255
Lassen
Lassen Forest.
1784
Comment
RSA121075
Kelloggia galioides
L. R. Short, D. Gish
1936-6-10
S- 379
Lassen
Burgess Spr. Exp. Range. Lassen Forest. (MDM?)
1814
Comment
CDA42199
Kelloggia galioides
T. C. Fuller
1963-7-15
10906
Lassen
Prescott Canyon, 2.5 miles north of Hayden Hill, ca. 15.5 miles south of Adin.
0
Comment
SEINET12319533
Kelloggia galioides
N. E. Heiken
1978-1
78
Lassen
E shore of Mahogany L, S of Eagle L
2060
Comment
UC1483872
Kochia americana
G. Schoolcraft
1980-5-8
231
Lassen
s. end Cal-Neva Lake
1219
Comment
UC7408
Kochia americana
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3329
Lassen
Honey Lake Valley
1219
Comment
JEPS97318
Kochia scoparia
Vernon H. Oswald and L. Ahart
1995-8-14
7172
Lassen
T30N R15E center N side Sec. 15, 4425 ft, Modoc Plateau, Sagebrush Scrub, alkaline clay soil. Hwy. 395 crossing a flooded playa (Mud Flat) 1.8 mi N of Smoke Creek Ranch Rd., N of Susanville
1348
Comment
CAS-BOT-BC180850
Kochia scoparia
Louella Bass
1981-9-29
s.n.
Lassen
Standish
Comment
CHSC60869
Koeleria macrantha
Vernon H. Oswald; Lowell Ahart
1993-6-28
5586
Lassen
Harvey Valley Rd. (33N02), 1.2 mi N of Hwy 44, E side of Grays Valley, E of Poison Lake. In meadow.
1731
Comment
JEPS107461
Koeleria macrantha
Lowell Ahart, John Dittes
2005-6-1
11860
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
1448
Comment
RSA702594
Koeleria macrantha
L. P. Janeway
2004-6-26
8149
Lassen
About 1.3 km. west-southwest of Patterson Flat, at junction of roads 35N08 and 34N20, in Blacks Mountain Experimental Forest.
1750
Comment
UC1024754
Koeleria macrantha
Leo Whitney
1933-8-9
2298
Lassen
ca 25 mi w of upper end of Eagle Lake Hall's Flat; Lassen National Forest, w of upper end of Eagle Lake
1737
Comment
UC1132160
Koeleria macrantha
A. Simontacchi
1940-7-8
945
Lassen
5.2 mi s Jelly Camp; Lassen National Forest, Halls Flat Quadrangle
Comment
CAS-BOT-BC340319
Kyhosia bolanderi
A. A. Heller
1937-9-1
15342
Lassen
About a mile east of Westwood
1524
Comment
RSA0009789
Lactuca tatarica var. pulchella
Marcus E. Jones
1897-6-24
s.n.
Lassen
10 to 15 miles west from Amedee.
1219
Comment
JEPS127275
Lagophylla ramosissima
Lowell Ahart, John Dittes
2016-7-13
21109
Lassen
80 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.
Comment
JEPS38999
Lagophylla ramosissima
W. L. Jepson
1918-8-2
7776
Lassen
Bedswith Pass
1463
Comment
POM204133
Lagophylla ramosissima
J. T. Howell
1934-6-10
11863
Lassen
Honey Lake Valley, 37 miles S of Susanville.
Comment
CAS-BOT-BC341480
Lagophylla ramosissima
Margaret Williams
1974-7-27
74 -L-62
Lassen
Area near Hallelujah Junction, west of Hwy 395 and south of Hwy 70
1493
Comment
JEPS114639
Lamium amplexicaule
Lowell Ahart, John Dittes
2008-6-20
14962
Lassen
In meadow, about 30 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
RSA0036999
Lamium amplexicaule
Lowell A. Ahart, John Dittes
2008-6-20
14962
Lassen
About 30 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
CDA20356
Lappula redowskii
D. Tillotson
1942-6-1
s.n.
Lassen
Modoc Plateau; Mud Flat.
0
Comment
JEPS125806
Lappula redowskii var. cupulata
William Harnach
2010-6-1
1240
Lassen
Approximately 10 miles NE of Doyle on Fort Sage Road then 1 mile N on Cal -Neva Road. Honey Lake Valley.
Comment
JEPS89759
Lasthenia glaberrima
Dean Wm. Taylor with Robert A. Price
1988-6-4
9771
Lassen
6 mi e of MacArthur (along Highway 299 at crossing of Frazer Creek, Fall River Valley, Pit River Watershed); Fall River Valley, Pit River Watershed
1036
Comment
UC1137764
Lathyrus brownii
August L. Hormay
1934-5-9
Lassen
Black Mt. Headquarters Lassen National Forest
1706
Comment
CHSC92742
Lathyrus nevadensis var. nevadensis
L. P. Janeway
2005-7-3
8451
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
POM277812
Lathyrus sulphureus
Lyman Benson
1932-5-14
3584
Lassen
Coarsegold
549
Comment Read comments Jul 2 2013
CAS-BOT-BC321496
Layia glandulosa
Clare B. Hardham
1961-6-16
7486
Lassen
Gold Run Creek, S of Susanville.
Comment
RSA164325
Layia glandulosa subsp. glandulosa
Clare B. Hardham
1961-6-16
7486
Lassen
Gold Run Creek, south of Susanville. Plants of the Sierra Nevada Mountains.
Comment
POM361661
Layia glandulosa subsp. glandulosa
Christopher Davidson
1975-6-7
2752
Lassen
1 mi E of Beckwourth Pass on Hwy 70.
1524
Comment
RSA170169
Lemna minor
W. L. Jepson
1918-8-16
8000
Lassen
Merrillville
1524
Comment
JEPS89219
Lemna minuscula
Mrs. R. M. Austin
June, 1894
Lassen
Cold Springs, Willow Creek Valley Willow Creek Valley; North East California, Cold Springs, Willow Creek Valley
Comment
CHSC99242
Lemna minuta
Lowell Ahart; John Dittes
2008-6-22
15022
Lassen
On shallow water, south side of the levee, about 50 yards east of the tall poles, mountain meadow, in Big Valley, about 3.5 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber.
1260
Comment
HSC95178
Lemna minuta
Gordon Leppig
1998-7-12
935
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
UC1101266
Lemna trisulca
Malcolm A. Nobs, S. Galen Smith
1949-7-22
1076
Lassen
10 mi n of Susanville (along Willow Creek, Willow Creek Valley); Willow Creek Valley, Willow Creek
Comment
UC1101282
Lemna turionifera
Malcolm A. Nobs, S. Galen Smith
1949-8-20
1483
Lassen
1 mi n of Doyle (Honey Lake Valley, Long Creek); Honey Lake Valley, Long Creek
Comment
CHSC112394
Lepidium chalepense
Lowell Ahart; John Dittes, Todd Sloat
2013-6-9
18786
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
NY76543
Lepidium latifolium
J. T. Howell
1975-7-23
51384
Lassen
Eagle Lake Lumber Company yard, Susanville
1295.4
Comment
CAS-BOT-BC12813
Lepidium perfoliatum
John Thomas Howell; Gordon H. True; Margaret Williams
1973-5-12
49209
Lassen
Sierra Nevada. Elysian Valley northwest of Janesville.
1325
Comment
CHSC7710
Lepidium perfoliatum
Beverley J. Wise
1969-4-13
36
Lassen
2.9 mi. east of Junction of Hwy 395 on Las. Co. Rd 338 (Amoke Creek Road).
1463
Comment
JEPS107842
Lepidium perfoliatum
Lowell Ahart, John Dittes
2005-6-2
11920
Lassen
Along the road, near the Anderson Ranch home, 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
JEPS95756
Lepidium perfoliatum
Vernon H. Oswald and L. Ahart
1995-6-19
6899
Lassen
T30N R16E southeast corner Sect. 6, 4540 ft, Modoc Plateau, Sagebrush Scrub. Between Litchfield and Ravendale on Smoke Creek Ranch Rd., 4.9 mi e of Hwy. 395
1383
Comment
UC1924234
Lepidium perfoliatum
Debra Valov
2004-6-9
2004260
Lassen
Bieber; off County A2 c. 8 km east of Hwy 299
1274
Comment
UCR73174
Lepidium perfoliatum
G. L. Webster
1989-5-13
7713
Lassen
2.5 mi. east of Beckworth Pass
1500
Comment
UC506992
Leptodactylon pungens
George A. Fischer and Irwin H. Johnson
1933-7-12
F 202
Lassen
Grass Valley; Lassen Forest, Grass Valley
1700
Comment
UC1226013
Leptodactylon pungens
Arthur Cronquist and Arthur H. Holmgren
1959-6-17
8472
Lassen
50 mi se Susanville
1371
Comment
CHSC44326
Leptosiphon harknessii
Lowell Ahart; John Thomas Howell
1974-7-9
518
Lassen
Along the edge of Eagle Lake Road, near the south-west side of Eagle Lake.
1584
Comment
CHSC4794
Leptosiphon harknessii
R. Carter
1967-6-29
571
Lassen
Roadside, n side of rd. On rd to Murrer's Medow. Eagle Lake.
1584
Comment
HSC25423
Leptosiphon harknessii
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19252
Lassen
Harvey Valley near Cone Springs
Comment
RSA31679
Leptosiphon harknessii
A. A. Heller
1938-7-28
15299
Lassen
About 2 miles east of Westwood.
1524
Comment
JEPS87460
Leucocrinum montanum
Vernon H. Oswald and Lowell Ahart
1993-5-12
5375
Lassen
Hwy 44 1.6 mi n.w. of its intersection with A21 (to Westwood) (ne side of Hwy 44)
1737
Comment
UCR201583
Leucocrinum montanum
Ken Osborne
2005-4-23
s.n.
Lassen
3 miles SE of Honey Lake, 0.5 mile west of Turtle Mountain
1276
Comment
CAS-BOT-BC508365
Leucocrinum montanum
G. Schoolcraft
1988-5-11
1794
Lassen
Along Hwy. 139 n. of Said Valley Reservoir
1676
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
CAS-BOT-BC508369
Leucocrinum montanum
Louella Bass
1973-4-29
31
Lassen
Elysian Valley, Sierra Nevada
1325
Comment
SEINET8480557
Leucocrinum montanum
M. J. Williams
1969-5-24
s.n.
Lassen
Hwy 44, near Bogart Ranger Station.
1646
Comment
UC803946
Leymus
G. L. Stebbins Jr., P. Dansereau, K. Narayan, and C. McMillan
1949-8-6
4006
Lassen
5 mi w Eagle Lake; McCoy Flat
1524
Comment
UC573939
Leymus cinereus
H. S. Yates
1936-8-12
9086
Lassen
McKenzie Meadow Susanville Quadrangle
Comment
UC584329
Leymus cinereus
G. L. Stebbins Jr. and J. A. Jenkins
1937-7-8
2227
Lassen
6 mi s Ravendale
1660
Comment
UC921130
Leymus cinereus
Vesta Holt
1945-8-12
Lassen
in meadows near shore of Eagle Lake
Comment
UCD64234
Leymus cinereus
G. Schoolcraft
1993-9-18
2343
Lassen
1 mi. N of Sagehen Summit on W side of Hwy 395.
1706
Comment
RSA126619
Leymus condensatus
A. Simontacchi
1940-6-30
946
Lassen
Halls Flat: 8.6 miles W. of Burgees Spring
1700
Comment
CAS-BOT-BC274465
Leymus triticoides
Louella Bass
1980-8-3
s.n.
Lassen
Standish
Comment
CAS-BOT-BC274467
Leymus triticoides
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49522
Lassen
Elysian Valley, west of Janesville
1325
Comment
UC1131756
Leymus triticoides
A. Simontacchi
1940-8-30
912
Lassen
4.2 mi s Blacks Mtn.; Lassen National Forest, Halls Flat Quadrangle
Comment
UCD65614
Leymus triticoides
L. Whitney
1933-8-4
s.n.
Lassen
Lassen National Forest. Near Sheepshead,
1889
Comment
JEPS88528
Lilaea scilloides
Vernon H. Oswald and Lowell Ahart
1996-6-24
7878
Lassen
Papoose Meadows located 2.5 mi s of Eagle Lake (and 0.5 mi e of Eagle Lake Road (A1), in Papoose Creek where it leaves the n end of the meadow, Modoc Plateau); Modoc Plateau, Papoose Meadows
1633
Comment
POM119423
Lilaea scilloides
Marcus E. Jones
1897-6-24
s.n.
Lassen
10 to 15 miles west from Amedee.
1219
Comment
CHSC54871
Limosella acaulis
Vernon H. Oswald
1991-9-23
4878
Lassen
Butte Lake in the northeast corner of the park. Lassen Volcanic Park.
1841
Comment
UC1101424
Limosella acaulis
Herbert L. Mason and Verne Grant
1947-7-9
13293
Lassen
5 mi e Bieber
Comment
UC1609110
Limosella acaulis
Vernon H. Oswald and Lowell Ahart
1993-6-14
5508
Lassen
Lassen A21 (32N02) 5.3 mi e of Lassen 105 (32N28Y) ca 7 mi (air) w Eagle Lake (near Summit Camp); w of Eagle Lake
1889
Comment
RSA252393
Limosella aquatica
Robert F. Thorne, C. W. Tilforth
1969-9-5
39137
Lassen
Said Valley Reservoir.
Comment
SEINET12765227
Linanthus ciliatus
Vernon H. Oswald, Lowell Ahart
1997-6-24
8605 .1
Lassen
South of Susan ville near the small pond on the crest of Diamond Mtn. at a stream on Forest Rd. 29N43, 3.5 miles east of Gold Run Rd. (29N10).; 0
1655
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
JEPS58441
Linanthus harknessii
G. S. Crew and C. S. Robinson
1927-7-15
76
Lassen
Feather Lake, sw Lassen County Feather Lake
1737
Comment
CHSC60841
Linanthus pungens
Vernon H. Oswald; Lowell Ahart
1993-6-28
5594
Lassen
Harvey Valley Rd. (33N02), 2.0 mi N of Hwy 44, E side of Grays Valley, E of Poison Lake.
1731
Comment
UC106752
Linanthus septentrionalis
T. S. Brandegee
1892-6-30
Lassen
Jonesville
Comment
UC1136855
Linum lewisii
L. R. Short and D. Gish
1936-6-5
S 385
Lassen
Lassen National Forest, Burgess Spring Experiment Range Burgess Spring Experiment Range; Lassen National Forest, Burgess Spring Experiment Range
1760
Comment
CHSC36448
Linum lewisii var. lewisii
Susan H. Euing
1982-6-3
2
Lassen
Ca. 0.8 mi s jct forest service roads 5.16 and 5.17 heading towards 5-Corners.
Comment
JEPS107872
Linum lewisii var. lewisii
Lowell Ahart, John Dittes
2005-6-2
11935
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
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
CHSC91203
Lithospermum ruderale
Lowell Ahart; John Dittes
2005-6-2
11932
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
POM72685
Lithospermum ruderale
Marcus E. Jones
1897-6-26
s.n.
Lassen
Susanville, Perkin s Ranch.
1463
Comment
UC1924235
Lithospermum ruderale
Debra Valov
2004-6-9
2004259
Lassen
Bieber; off County A2 c. 8 km east of Hwy 299
1274
Comment
UC506915
Lithospermum ruderale
George A. Fischer and Irwin H. Johnson
1933-7-19
F 262
Lassen
Lassen; Sec. 2
1783
Comment
CHSC7698
Lolium multiflorum
Beverley J. Wise
1969-5-23
132
Lassen
34.8 mi. S.E. of Susanville on Las. Co. Rd. 320.
1249
Comment
CHSC117201
Lomatium bicolor var. leptocarpum
Lowell Ahart; John Dittes
2016-6-7
20975
Lassen
20 yards west of the pond, about 100 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 6.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley.
1289
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
UC1123077
Lomatium bicolor var. leptocarpum
Robert W. Gardner
1939-6-6
G- 28
Lassen
Harvey Valley Halls Flat Quad., Harvey Valley
Comment
SEINET178371
Lomatium dissectum var. multifidum
Marcus E. Jones
1897-6-25
Lassen
Susanville.
1341
Comment
UCD127700
Lomatium nevadense var. parishii
Grady L. Webster
1989-5-13
7718
Lassen
2.5 mi east of Beckworth Pass.
Comment
CHSC60807
Lomatium nudicaule
Vernon H. Oswald; Lowell Ahart
1993-6-28
5617
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
CHSC72293
Lomatium plummerae
L. P. Janeway; Glenn Clifton
1998-7-8
5721
Lassen
Ridgetop saddle about 2.5 mi northwest of Red Rock; at junction of Roads 28N08,19N10, 213, and 28N55. Top of north-facing Wyethia opening in open yellow pine forest.
1988
Comment
UC1730232
Lomatium plummerae
L. P. Janeway and Glenn Clifton
1998-7-8
5721
Lassen
ridgetop saddle 2.5 mi NW of Red Rock (junction of Roads 28N08, 29N10, 213, and 28N55)
1988
Comment
CAS-BOT-BC217795
Lomatium ravenii
B. Bartholomew; M. Gilbert; L. Skog
1993-5-13
6564
Lassen
U.S. Hwy 395 6.0 km N of railroad crossing and 20.1 km N of Litchfield
1330
Comment
CAS-BOT-BC217797
Lomatium ravenii
Lincoln Constance; E. DiFulvio
1962-4-16
3747
Lassen
1 mile S of Ravendale
1615
Comment
CAS-BOT-BC217799
Lomatium ravenii
David D. Keck; J. Clausen
1935-6-24
3738
Lassen
2 mi. S. of Ravendale
1465
Comment
CHSC27666
Lomatium ravenii
Robert A. Schlising
1978-7-2
3309
Lassen
Ca 1.5 mi S Ravendal, near jct hwy 395 and horse Lake Road; large population between Horse Lake Road and S. Pac. RR tracks.
1621
Comment
LA35567
Lomatium ravenii
Lincoln Constance; Rimo Bacigalupi
1959-6-14
3672 ISOTYPE
Lassen
1 mi. S of Ravendale
1462
Comment
NY406056
Lomatium ravenii
L. Constance
1959-6-14
3672
Lassen
One mile south of Ravendale
1463.0
Comment
UC1177543
Lomatium ravenii
Peter H. Raven with Otto T. Solbrig
1958-6-17
13287
Lassen
1.8 mi. s. Ravendale (along U.S. Hwy. 395)
Comment
UC1199508
Lomatium ravenii
Lincoln Constance and Rimo Bacigalupi
1959-6-14
3672
Lassen
1 mi s Ravendale; ; Ravendale, Lassen Co.
1463
Comment Read comments Jun 6 2012
OBI48163
Lomatium triternatum
Rhonda Riggins
1989-4-27
1648
Lassen
US 395, 1.1 mi N Madeline, 8.8 mi S Modoc Co line
1676
Comment
OBI81753
Lomatium triternatum
Tracey Call, Viola Call
1961-5-30
2051
Lassen
2 miles north of Madeline
Comment
CHSC42628
Lomatium triternatum var. macrocarpum
Vernon Oswald
1986-5-28
2050
Lassen
Hwy 36, 15.0 mi e of Plumas-Lassen Co. line, 3.5 mi ne of Fredonyer Pass.
1508
Comment
SEINET11131289
Lomatium triternatum var. triternatum
J. A. Young
1982-6-9
s.n.
Lassen
Mayer's Ranch, Adin
1372
Comment
CHSC117768
Lomatium vaginatum
L. P. Janeway; B. Castro
2015-6-5
11773
Lassen
Great Basin, Modoc Plateau. Along Tuledad Road (County Road 506) 4.7 road-km south of the junction at the west end of Tuledad Canyon; 2.6 air-km east-northeast of Dodge Reservoir.
1846
Comment
RSA0049622
Lomatium vaginatum
Dean Wm. Taylor
2012-5-17
21207
Lassen
Highway 395 about 0.5 miles S of the Modoc County line, east side of the highway between the roadway and the fenceline (3 miles S of Likely)
Comment
UCD55282
Lomatium vaginatum
Ellen Dean; Gary Schoolcraft
2006-5-16
3101
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.
1207
Comment
UC80913
Lotus crassifolius var. crassifolius
unknown
1892-7-1
Lassen
Susanville
Comment
UC1567406
Lotus denticulatus
G. Schoolcraft
1989-6-5
1896
Lassen
s of Adin (intersection of Hwy 139 and A2)
1341
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
RSA406186
Lotus humistratus
W. Hutchinson
1925-7-1
s.n.
Lassen
Lassen
Comment
RSA715662
Lotus unifoliolatus
L. Ahart
2005-6-2
11970 -A
Lassen
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.
1409
Comment
CAS-BOT-BC198254
Lupinus
John Thomas Howell
1976-7-19
51949
Lassen
Southwest of Susanville on Gold Run Road
1341
Comment
JEPS108147
Lupinus andersonii
L. P. Janeway, B. Castro
2005-7-10
8482
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 & 28N02) and Road 28N01
1859
Comment
CHSC23548
Lupinus arbustus
Wayne O. Baum
1971-7-6
71 -45
Lassen
E. slope of Gallatin Peak.
1950
Comment
SEINET5327728
Lupinus arbustus
N. H. Holmgren, P. K. Holmgren
1978-6-11
8932
Lassen
2.4 km (1.5 mi) E of Rye Patch Canyon summit, 16 km (10 mi) airline distance SE of Ravendale. On N-facing slope
1830
Comment
SEINET10490460
Lupinus arbustus subsp. arbustus
Katherine L. Morris
1973-5-25
Morris 211
Lassen
9.6 miles n of milford on us 395 in an area covered with artemisia, purshia, And rabbit bush
Comment
NY732865
Lupinus arbustus subsp. calcaratus
N. H. Holmgren
1978-6-11
8932
Lassen
2.4 km (1.5 mi) east of Rye Patch Canyon summit, 16 km (10 mi) airline distance southeast of Ravendale
1830
Comment
NY732866
Lupinus arbustus subsp. calcaratus
P. Gallian
1971-6-2
478
Lassen
Approx. 3 miles south of Janesville at Honey Lake, rest area on U.S. Highway 395
1250
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
CHSC106689
Lupinus argenteus
B. Ignacio
2008-5-3
Lassen
Fort Sage Mountains.
1520
Comment
CAS-BOT-BC208730
Lupinus argenteus var. heteranthus
L. S. Smith
1918-8-13
1035
Lassen
Silver Cr., Modoc Forest
Comment
CAS-BOT-BC208738
Lupinus argenteus var. heteranthus
W. W. Eggleston
1927-7-14
21510
Lassen
Willow Creek, near Hayden Hill, Modoc Forest
1500
Comment
CAS-BOT-BC208743
Lupinus argenteus var. heteranthus
Roxana S. Ferris; Rena Duthie
1919-6-13
18
Lassen
Madaline
Comment
CAS-BOT-BC208765
Lupinus argenteus var. heteranthus
Margaret Williams; Steven Williams
1974-7-26
74 -L-13
Lassen
Near Hallelujah Junction, west of Hwy 395 and south of Hwy 70 - Sierra Nevada
1493
Comment
CAS-BOT-BC208767
Lupinus argenteus var. heteranthus
Elmer I. Applegate
1923-9-30
4032
Lassen
Sagebrush plains south of Money Lake, Doyle
Comment
CHSC99140
Lupinus argenteus var. heteranthus
Lowell Ahart; John Dittes
2008-6-19
14873
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
NY736930
Lupinus argenteus var. heteranthus
G. H. True Jr.
1936-6-27
556
Lassen
Near top of Hot Spring Mountain
1829
Comment
RSA795328
Lupinus argenteus var. heteranthus
L. Ahart, John Dittes
2010-7-31
16977
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
SBBG3562
Lupinus argenteus var. heteranthus
H. and M. Dearing
1938-6-30
2228
Lassen
Poison Lake, 40 mi W of Susanville
1219
Comment
UC773894
Lupinus argenteus var. heteranthus
L. R. Short and Wm. Gansberg
1936-7-3
S- 471
Lassen
Burgess Spring Experimental Station; Lassen National Forest, Burgess Spring Experimental Station
1859
Comment
NY746669
Lupinus brevicaulis
M. J. Williams
1986-5-14
86- 40 --1
Lassen
Near Highway 395, at Noble Emigrant Trail Sign, 7 road miles north of Litchfield
1524
Comment
SEINET5328130
Lupinus brevicaulis
M. J. Williams, G. Schoolcraft, A. Tiehm
1986-5-14
86- 40 -1
Lassen
Near Hwy 395, at Noble Emigrant Trail Sign, 7 rd miles N of Litchfield
1524
Comment
CAS-BOT-BC196640
Lupinus breweri var. breweri
Marcus E. Jones
1897-6-21
s.n.
Lassen
Chat
1615
Comment
POM23858
Lupinus breweri var. breweri
Marcus E. Jones
1897-6-21
s.n.
Lassen
Chat.
1616
Comment
POM253163
Lupinus caudatus
A. A. Heller
1938-6-23
15203
Lassen
Along U.S. Highway 395 just outside of Johnstonville.
Comment
POM26869
Lupinus caudatus
Marcus E. Jones
1897-6-26
s.n.
Lassen
Susanville, Perkin's Ranch.
1463
Comment
SEINET10490714
Lupinus caudatus subsp. caudatus
Paul Gallian, David B. Dunn
1971-6-2
Gallian 481
Lassen
5 mi. S of milford near honey lake on us hwy 395; along roadside in grass - Artemesia tridentata assoc.; Quercus - jeffery pine on mountain range to w at Approx. The same altitude.
1250
Comment
SEINET10903428
Lupinus caudatus subsp. caudatus
Duane Isely, I. Isely
1971-7-11
Isely 11379
Lassen
Near apex of ascent s of eagle lake, near state #139. Stems densely clustered; Flowers violet; standard reflexed 45 degrees.
1676
Comment
SD51227
Lupinus confertus
Darley F. Howe
1960-9-21
2993
Lassen
2 miles north of Janesvill on Hwy 395
1280
Comment
SEINET10450525
Lupinus confertus
Harold W. Rickett
1968-8-22
Rickett s.n.
Lassen
Collected in a field near Susanville.
1298
Comment
RSA0060732
Lupinus grayi
Daisie Huang
2006-8-3
06080307
Lassen
Slope under yellow pine forest.
1040
Comment
JEPS81670
Lupinus lepidus var. confertus
L. R. Heckard with T. I. Chuang and R. C. Bacigalupi
1968-8-12
2118
Lassen
around Honey Lake just n Milford; Honey Lake just n of Milford
1310
Comment
SFV18614
Lupinus lepidus var. confertus
T. W. Nelson, J. P. Nelson
1990-7-14
8776
Lassen
Along State Route CA-395 at Janesville Road. Lassen County Site #3.
1250
Comment
CHSC117063
Lupinus lepidus var. confertus
Mary De Decker
1955-8-25
262
Lassen
Honey Lake: Highway 395
Comment
HSC103510
Lupinus lepidus var. sellulus
Thomas W. Nelson, Jane Nelson
1986-6-23
8144
Lassen
Along State Route 44, 10.9 mi. from Old Station junction.
1585
Comment
CHSC60830
Lupinus leucophyllus
Vernon H. Oswald; Lowell Ahart
1993-6-28
5607
Lassen
Rd. 35N04 at Aspen Well, N of Hwy 44 on the NW edge of Harvey Valley, NE of Poison Lake.
1725
Comment
UC201948
Lupinus leucophyllus
Franklin P. Nutting
Lassen
flat near Eagle Lake; Flat near Eagle Lake
Comment
UCD107964
Lupinus leucophyllus
R. Tofsrud
1951-7-13
s.n.
Lassen
Bieber area, Albaugh Ranch.
Comment
NY747411
Lupinus leucophyllus var. canescens
M. S. Baker
1894-7-12
s.n.
Lassen
Pine Creek
Comment
UC1533166
Lupinus microcarpus var. microcarpus
Gary Schoolcraft
1981-9-1
572
Lassen
along road 3 mi se Bieber
1249
Comment
UC15846
Lupinus microcarpus var. microcarpus
Mrs. R. M. Austin and Bruce
June 1898
2145
Lassen
Madaline Plains Madaline Plains <Madeline Plains>; Madaline Plains
Comment
NY747489
Lupinus nevadensis
G. Schoolcraft
1986-4-28
1526
Lassen
Lower W. slopes of Fort Sage Mountains
1433
Comment
SEINET10450722
Lupinus obtusilobus
Harold W. Rickett
1968-8-22
Rickett s.n.
Lassen
Collected in Lassen Volcanic National Park near the peak. In dry ground.
Comment
RSA0005616
Lupinus onustus
Marcus E. Jones
1897-6-26
s.n.
Lassen
Susanville, Perkin's Ranch.
1463
Comment
RSA18697
Lupinus onustus
Marcus E. Jones
1887-06
s.n.
Lassen
Susanville
Comment
UC82153
Lupinus polyphyllus var. burkei
T. S. Brandegee
1892-7-28
Lassen
Janesville
Comment
RSA263046
Lupinus sellulus subsp. sellulus
B. J. Cox
1971-6-11
3179
Lassen
8 mi. W. of Susanville, on Calif. Hwy. 36.
1555
Comment
SEINET10490893
Lupinus sellulus var. sellulus
Billy Joe Cox
1971-6-11
Cox 3179
Lassen
8 mi. W of susanville, on calif hwy 36 along road cut in volcanic soil; pinus Jeffreyi forest.
1554
Comment
POM110680
Luzula comosa
Marcus E. Jones
1897-7-2
s.n.
Lassen
Near Prattville at Clear Creek.
1524
Comment
HSC93435
Lythrum portula
Vernon H. Oswald, L. Ahart
1996-8-1
8104
Lassen
Mtn. Meadows Reservoir SW of Westwood, receding shore NE of Indian Ole Dam
1540
Comment
RSA518407
Machaeranthera canescens var. canescens
George K. Helmkamp
1990-10-4
M- 5
Lassen
South of Susanville in Plumas National Forest; north of Milford Pass.
1463
Comment
RSA518416
Machaeranthera canescens var. canescens
George K. Helmkamp
1990-9-23
G- 8
Lassen
N of Ravendale
1677
Comment
UC905682
Madia citrigracilis
David D. Keck
1930-7-23
949
Lassen
Susanville Sierra Nevada, Susanville
1280
Comment
UC579789
Madia citriodora
David D. Keck and J. Clausen
1935-6-25
3761
Lassen
just w Susanville
1310
Comment
UC89447
Madia elegans
T. S. Brandegee
1892-6-26
Lassen
Milford
Comment
RSA719892
Madia elegans subsp. elegans
Michael A. Vincent, K. Levings
2006-7-29
12912
Lassen
Along Rt. 395, ca. 6 miles SE of Johnstonville.
Comment
CAS-BOT-BC344300
Madia exigua
G. Schoolcraft
1989-6-7
1903
Lassen
Lower NE slopes of Shaffer Mtn.
Comment
JEPS89656
Madia exigua
Dean Wm. Taylor with Robert A. Price
1988-6-4
9769
Lassen
ca. 6 mi. e. MacArthur (along Hwy. 299 at crossing of Frazer Creek, Fall R. Valley); Pit R. Watershed, Fall R. Valley
1036
Comment
UC469045
Madia exigua
Franklin P. Nutting
Lassen
Dixie Valley
Comment
UC1053319
Madia glomerata
J. M. Tucker
1950-7-25
1975
Lassen
road from Pittville 33 mi nw Susanville
Comment
CAS-BOT-BC334690
Madia glomerata
David D. Keck
1930-7-23
955
Lassen
Fifteen miles west of Susan ville, Sierra Nevada
1524
Comment
CHSC66376
Madia gracilis
Vernon H. Oswald; Lowell Ahart
1996-6-17
7783
Lassen
Modoc Plateau. Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville. On the N side of Hwy. 36 between the trail and highway bridges spanning the Susan River.
1432
Comment
JEPS117590
Madia gracilis
Lowell Ahart, John Dittes
2010-7-31
17006
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
Comment
CAS-BOT-BC512878
Maianthemum stellatum
Louella Bass
1973-6-17
120
Lassen
Elysian Valley
1325
Comment
JEPS103229
Malacothrix floccifera
G. Schoolcraft
1997-6-24
2595
Lassen
About 4 miles W of Doyle on S side of Doyle Grade Road
1767
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
UC1124510
Marrubium vulgare
A. Simontacchi
1940-7-20
933
Lassen
Halls Flat Ranger Station , Halls Flat Quad. (Lassen National Forest)
Comment
CDA5693
Marrubium vulgare
T. C. Fuller
1964-10-8
12704
Lassen
West side of Highway 395 to Standish, 1 mile south of Secret Valley.
0
Comment
UC62420
Marsilea oligospora
Baker and Nutting
1894-7-25
Lassen
near Eagle Lake
Comment
JEPS93831
Matricaria discoidea
Vernon H. Oswald and Lowell Ahart
1998-6-4
9138
Lassen
Red Rock Road at its junction with Highway 395 s of Constantia; Red Rock Road
1365
Comment
RSA715623
Matricaria matricarioides
L. Ahart, John Dittes
2005-6-1
11895
Lassen
North side of Scott Road, east side of the railroad underpass, Long Valley, about 4 3/4 mile (air) north of the intersection of Scott Road and Highway 70, 6.2 miles (air) northwest of Hallelujah junction.
1460
Comment
CDA8327
Matricaria occidentalis
T. C. Fuller
1963-6-1
10617
Lassen
West side of road to Susanville, 2.0 miles south of Pittville.
0
Comment
SCFS2169
Medicago sativa
H. Naqui
1965-7-13
130
Lassen
PCT dunes [?] bridge, Hwy 139
1402
Comment
UCD86363
Melica bulbosa
B. L. Kay
1961-6-28
s.n.
Lassen
6 miles NW of Madeline.
Comment
CAS-BOT-BC282042
Melica fugax
John Thomas Howell
1934-6-14
12167
Lassen
Near Lost Lake, Warner Mountains
2438
Comment
SEINET208829
Melica fugax
Jack Major
1966-6-24
Lassen
Modoc National Forest ; Long Valley 3 miles airline southwest of Patterson Guard Station northeastern Lassen County.
2088
Comment
UC38833
Melica fugax
M. S. Baker and Frank Nutting
1894-7-9
Lassen
Pine Creek
Comment
UC972186
Melica fugax
Milo S. Baker
1952-4-24
12411
Lassen
ca 15 mi e Chester (at old road quarry)
Comment
CAS-BOT-BC262447
Melica subulata
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49438
Lassen
Elysian Valley, west of Janesville
1325
Comment
UCD88630
Melica subulata
John Thomas Howell; Gordon H. True and Margaret Williams
1973-6-28
49438
Lassen
Sierra Nevada. Elysian Valley west of Janesville.
1325
Comment
CHSC60751
Mentzelia albicaulis
Vernon H. Oswald; Lowell Ahart
1993-6-14
5536
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
CDA36651
Mentzelia albicaulis
S. E. Piper
1943-7-2
Lassen
0.5 mile east of Herlong.
0
Comment
JEPS124817
Mentzelia albicaulis
N. L. Rechen
1964-7-1
73
Lassen
1 mile north of Susanville. H. 139
Comment
CHSC60752
Mentzelia congesta
Vernon H. Oswald; Lowell Ahart
1993-6-14
5537
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
JEPS107445
Mentzelia congesta
Lowell Ahart, John Dittes
2005-6-1
11887
Lassen
On the north side of Scott Road, Long Valley, about 4 1/4 miles (air) north of the intersection of Scott Road and Highway 70, 5.5 miles (air) northwest of Hallelujah Junction
1433
Comment
CHSC5300
Mentzelia dispersa
P. Balch
1955-7-22
Lassen
Paul Bunyan Rd., 3 1/2 mi from Susanville toward Eagle Lake.
1889
Comment
UC1121687
Mentzelia dispersa
A. Simontacchi
1940-6-5
818
Lassen
8 m wnw Harvey Valley Ranger Station; Halls Flat Quad, Lassen National Forest
Comment
CHSC20266
Mentzelia laevicaulis
J. Pitts
1972-7-20
334
Lassen
Found on hwy 139, 10 mi n of Susanville.
Comment
RSA202434
Mentzelia montana
Jack Major
1966-6-24
s.n.
Lassen
Above Blue Lake. Warner Mountains. Modoc National Forest. Northeastern Lassen County. (ca. 18 miles airline southeast of Likely)
1905
Comment
CHSC27164
Menyanthes trifoliata
J. D. Prouty
1978-7-28
36
Lassen
Murrer's Upper Meadow.
1548
Comment
CHSC61178
Micranthes aprica
Vernon H. Oswald; Lowell Ahart
1993-5-12
5373
Lassen
SW side of Hwy. 44, 0.9 mi NW of its intersection with A21 (to Westwood), at a large opening in the forest.
1737
Comment
SBBG2836
Micranthes integrifolia
H. and M. Dearing
1938-6-30
2232
Lassen
Box 20 mi N of Susanville [Hwy 44]
1066
Comment
CHSC101036
Micranthes nidifica
John Dittes
2008-5-22
1522
Lassen
Modoc Plateau; ca. 15.3 air miles southeast of Adin, ca. 3.4 air miles east of Hayden Hill, ca. 480 feet north of intersection of Hwy 139 and FS Road 36N02.
482
Comment
CAS-BOT-BC429183
Micranthes oregana
John Thomas Howell
1934-7-9
12516
Lassen
Bridges Creek Spring
Comment
CAS-BOT-BC429184
Micranthes oregana
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49424
Lassen
Elysian Valley, west of Janesville
1325
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
UC1609228
Microseris laciniata subsp. laciniata
Vernon H. Oswald and Lowell Ahart
1993-6-28
5588
Lassen
Harvey Valley Rd (33N02) 1.7 mi n Hwy 44 (e side of valley, e of Poison Lake); Grays Valley
1719
Comment
CHSC99143
Microseris nutans
Lowell Ahart; John Dittes
2008-6-19
14871
Lassen
Along a small wash, 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-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
CDA8392
Microseris nutans
T. C. Fuller
1963-6-1
10631
Lassen
East side of road to Hall s Flat, 9.4 miles south of Pittville.
0
Comment
RSA122926
Microsteris gracilis subsp. gracilis
K. e. Bradshaw
1939-5-27
230
Lassen
Black Mountain Experimental Forest, Plot 39-1. Lassen National Forest
1753
Comment
UC27028
Mimulus guttatus
Mrs. C. C. Bruce
June 1898
2276
Lassen
Shumway
Comment
UC886176
Mimulus guttatus
A. A. Heller
1938-6-22
15183
Lassen
1 mi s Westwood
1524
Comment
UC125195
Mimulus layneae
Baker and Nutting
Lassen
Big Valley
Comment
CDA38387
Mimulus nanus
S. E. Schoenig
1998-7-5
98 -72
Lassen
By south side of Highway 44, vicinity of Bogard Campground.
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
SEINET10929288
Mimulus nanus
Paul Gallian, David B. Dunn
1971-6-2
Gallian 467
Lassen
6 mi n of halleluja jct on us hwy 395, in artemisia tridentata, pinyon pine, Jeffery pine along high ridge and in sandy wash.
1402
Comment
HSC22960
Mimulus nanus var. mephiticus
John Pratt
1970-7-11
76
Lassen
At base of Dyer Mtn lookout tower.
Comment
LA209350
Mimulus nanus var. mephiticus
A. A. Heller; P. B. Kennedy
1907-7-1
sn
Lassen
Near Old Chat
Comment
POM252823
Mimulus nanus var. mephiticus
A. A. Heller
1938-6-22
15188
Lassen
About 1 1/8 miles south of Westwood.
1524
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
UC124340
Mimulus nanus var. mephiticus
Gustav Eisen
1891-1
Lassen
Honey Lake
Comment
UC27047
Mimulus nanus var. mephiticus
M. S. Baker and Frank Nutting
1894-7-12
Lassen
Pine Creek
Comment
POM43828
Mimulus nanus var. nanus
Marcus E. Jones
1897-6-18
s.n.
Lassen
Chat.
1524
Comment
JEPS4302
Mimulus pulsiferae
A. A. Heller
1938-6-22
15187
Lassen
1 mi s Westwood
1524
Comment
RSA536396
Mimulus pygmaeus
Beth Corbin
1991-6-26
633
Lassen
Big Merrill Flat. 14 miles NW of Susanville.
1790
Comment
UC1063539
Mimulus suksdorfii
A. Simontacchi
1940-5-14
716
Lassen
10.2 mi e Coyote Spring; Lassen National Forest, Halls Flat Quadrangle
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
HSC26594
Mimulus torreyi
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19161
Lassen
3 mi. N of Westwood
Comment
HSC20810
Mimulus torreyi
M. T. Milligan
1964-7-16
138
Lassen
2 mi. W on the Silver Lake Rd., along Upper Susan River.
1829
Comment
RSA152664
Mimulus torreyi
I. L. Wiggins, Dorothy B. Wiggins
1961-6-10
16316
Lassen
2 miles E. of Plumas-Lassen County line, along California Highway 36, near Westwood.
Comment
UCD150408
Mirabilis laevis var. retrorsa
William Anderson
1963-6-23
s.n.
Lassen
Wendel.
Comment
CAS-BOT-BC221782
Monardella odoratissima
John Thomas Howell
1934-7-9
12525
Lassen
Pine Creek Flat
Comment
SEINET13948657
Monardella odoratissima
Ralph K. Gierisch
1968-1
3354
Lassen
Highway 44; 5700 ft alt., T31N, R8E, SEC23
1737
Comment
RSA505703
Monardella odoratissima subsp. glauca
G. H. True
1938-7-14
961
Lassen
Milford Grade, just noth of summit.
1768
Comment
UC1124621
Monardella odoratissima subsp. glauca
A. Simontacchi
1940-6-23
880
Lassen
3.2 mi sw Schoonamaker Lake; Lassen National Forest, Halls Flat Quadrangle
Comment
UC1137692
Monardella odoratissima subsp. glauca
George A. Fischer, Irwin H. Johnson
1933-7-21
F 274
Lassen
Stringer Lassen National Forest
1696
Comment
UC1537598
Monardella odoratissima subsp. glauca
Gordon H. True Jr.
1936-6-27
552
Lassen
between Bull Flat and Hot Spring Mountain
1524
Comment
UCR244066
Monardella odoratissima subsp. glauca
Jim Andre, G. L. Clifton
1993-6-9
19692
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
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
CHSC5271
Monardella odoratissima subsp. pallida
M. West
1946-7-12
Lassen
Silver Lake.
1981
Comment
HSC14276
Monardella odoratissima subsp. pallida
M. T. Milligan
1964-7-16
133
Lassen
2 mi. N on the Silver Lake Rd., along Upper Susan River.
1829
Comment
UC2035929
Monardella odoratissima subsp. pallida
John Thomas Howell
1934-7-9
12525
Lassen
Pine Creek Flat
Comment
OBI75862
Monardella odoratissima subsp. pallida
Anthony Baniaga
2011-9-1
509
Lassen
Lassen Natl Forest. W of Bailey Crk, along F.S. 10 Red Cinder quad. T29N R7E sec 3 SE of NE
1844
Comment
JEPS107400
Monolepis nuttalliana
Lowell Ahart, John Dittes
2005-6-1
11897
Lassen
On the south 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
UC1136460
Monolepis nuttalliana
A. Simontacchi
1940-6-8
843
Lassen
Halls Flat Ranger Station Lassen Nat'l Forest, Halls Flat Quad., Halls Flat Ranger Sta
Comment
CAS-BOT-BC444692
Montia chamissoi
John Thomas Howell
1934-6-14
s.n.
Lassen
Near Lost Lake, Warner Mts.
2438
Comment
JEPS28404
Montia chamissoi
George W. Gillett
1957-7-28
932
Lassen
1 mi above Butte Lake (Lassen Volcanic National Park, Widow Lake Trail); Lassen Volcanic National Park, Widow Lake Trail
1905
Comment
NY497728
Montia chamissoi
G. Schoolcraft
1993-6-1
2272
Lassen
Upper Secret Creek, south of Tule Patch Spring
1463.0
Comment
OBI76977
Montia chamissoi
Anthony Baniaga
2011-6-20
385
Lassen
Lassen Natl Forest. Windy Gap Well vicinity. Harvey Mtn quad T32N R8e sec 6 NE of SW
1675
Comment
HSC30029
Montia dichotoma
D. H. Norris, T. Nelson, S. Dowty
1971-6-22
19275
Lassen
Harvey Valley near Cone Springs
Comment
CHSC64892
Montia fontana subsp. chondrosperma
Vernon H. Oswald
1995-6-26
6925
Lassen
Modoc Plateau. Ash Valley Rd. (Lassen 527), 7.1 mi w of Madeline. Locally abundant, forming mats on wet rocks in a shallow, roadside streamlet.
1712
Comment
RSA122965
Montia linearis
L. R. Short, Wm Gansberg
1936-6-8
s 392
Lassen
Burgess Spring Exp. Range
1744
Comment
RSA292423
Montia linearis
Noel Holmgren, Patricia K. Holmgren
1978-6-11
8915
Lassen
Lassen County: vicinity of spring at fork to Painters Flat on E side of Observation Peak, 28km (17.4miles) E of Ravendale and 22.5km (14miles) airline distance.
1677
Comment
UC1136744
Montia linearis
A. Simontacchi
1940-5-14
711
Lassen
10.2 mi e of Coyote Spring (Lassen National Forest); Lassen National Forest
1699
Comment
UC1924586
Montia linearis
Debra Valov
2006-5-28
2006016
Lassen
Bieber off County Rd A2 c. 8 km east of Hwy 299
1271
Comment
UC1951065
Montia linearis
Debra Valov
2007-5-22
2007075
Lassen
Bieber, ca. 12 km east of Hwy 299 via County Rd A2.
Comment
CAS-BOT-BC445066
Montia linearis
Louella Bass
1973-4-23
27
Lassen
Elysian Valley.
1325
Comment
SEINET960052
Montia linearis
Unknown
1978-1
8915
Lassen
Vicinity of Spring at fork to Painters Flat on east side of Observation Peak, 28 Km (17.4 mi) airline distance.
1680
Comment
UC36660
Muhlenbergia asperifolia
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3367
Lassen
Adobe Meadows Honey Lake Valley
Comment
CAS-BOT-BC260596
Muhlenbergia filiformis
George W. Gillett
1957-7-28
940
Lassen
Lassen Volcanic National Park. Near W end of Widow Lake
2072
Comment
UC589840
Muhlenbergia filiformis
H. S. Yates
1936-8-12
6081
Lassen
McKenzie Meadow Susanville Quadrangle
1524
Comment
RSA256329
Muhlenbergia jonesii
J. R. Reeder, C. G. Reeder
1973-5-23
6170
Lassen
25 miles NW of Susanville along Hwy 44 in Lassen Nat'l Forest
1738
Comment
RSA268992
Muhlenbergia jonesii
J. R. Reeder, C. G. Reeder
1972-7-24
5809
Lassen
22 miles NW of Susanville in vicinity of Silver Lake, along Hwy 44, Lassen Nat'l Forest
1707
Comment
UC163551
Muhlenbergia jonesii
Milo S. Baker
Lassen
Eagle Lake
Comment
RSA268991
Muhlenbergia richardsonis
J. R. Reeder, C. G. Reeder
1972-7-24
5812
Lassen
Lassen National Forest; 17 miles NW of Susanville, along Hwy 44
1128
Comment
SJSU4296
Muhlenbergia richardsonis
J. W. Tilden
1960-6-27
1511
Lassen
outskirts of Westwood, foot of Moonlight Rd
1524
Comment
UCD86950
Muhlenbergia richardsonis
R. M. Love
1940-7-5
s.n.
Lassen
Madeline Plains.
Comment
CAS-BOT-BC275156
Muhlenbergia richardsonis
George W. Gillett
1957-7-22
871
Lassen
Lassen Volcanic National Park. Snag Lake, S shore
1850
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
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
CHSC27619
Myosurus apetalus var. borealis
Robert A. Schlising
1978-7-30
3331
Lassen
S of Eagle Lake at Deans Ridge. Margin of reservoir.
1950
Comment
CAS-BOT-BC83318
Myosurus minimus
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49489
Lassen
Sierra Nevada. Elysian Valley west of Janesville.
1325
Comment
CAS-BOT-BC83320
Myosurus minimus
James Jokerst
1983-7-25
1890
Lassen
Near Madeline Plains.
1614
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
CHSC30584
Myriophyllum sibiricum
P. V. Caldwell
1972-6-16
264
Lassen
3/4 miles E, on Forest Rd. 5, 1 1/2 miles from the station in Kildeere ond.
Comment
CHSC77218
Myriophyllum sibiricum
G. Schoolcraft
1996-7-10
2532
Lassen
Willow Creek- northeast of Susanville.
1432
Comment
JEPS96085
Myriophyllum sibiricum
Vernon H. Oswald and Lowell Ahart
1996-9-10
8281
Lassen
s.w Westwood (Mt. Meadows Reservoir, shallow water along R.R. embankment n.w. edge of reservoir); Mt. Meadows Reservoir
1539
Comment
SEINET231810
Myriophyllum sibiricum
A. Tiehm, G Schoolcraft
1984-8-14
9243
Lassen
Buckhorn Reservoir on S side of Buckhorn rd to Ravendale about 6 rd mi W of the state line.
1698
Comment
CHSC25310
Nama aretioides
Pauleen Broyles
1977-6-1
157
Lassen
Skedaddle Ranch Road at South Fork Reservoir turn-off, ca 8 km ne of Herlong.
1660
Comment
CHSC65036
Nama aretioides var. californica
Vernon H. Oswald; Lowell Ahart
1995-7-5
6955
Lassen
Modoc Plateau. North of Honey Lake on Smoke Creek Ranch Rd., 4.0 mi e of Hwy 395.
1383
Comment
CHSC71088
Nama aretioides var. californica
Vernon H. Oswald; Lowell Ahart
1998-5-22
9105
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
JEPS29749
Nama aretioides var. multiflora
Rimo Bacigalupi and L. R. Heckard
1962-5-28
8503
Lassen
in area n of Honey Lake (2 mi e of Wendel Junction on road from U.S. 395 past Flanagan to Pyramid Lake, Nevada)
1219
Comment
JEPS79141
Nama aretioides var. multiflora
L. R. Heckard with R. Bacigalupi
1980-6-11
5243
Lassen
11.3 mi n Litchfield (along U.S. 395 s of Deep Creek crossing); s of Deep Creek crossing, n of Litchfield
1463
Comment
CHSC14186
Nama densa
M. S. Taylor
1974-7-12
305
Lassen
Scattered around Mahogany Lake, ca. 3 mi s of Eagle Lake Field Station, ca. 13 mi nw of Susanville.
1524
Comment
POM126780
Nama densa
Franklin P. Nutting
s.n.
Lassen
Eagle Lake.
Comment
CHSC60842
Navarretia breweri
Vernon H. Oswald; Lowell Ahart
1993-6-28
5592
Lassen
Harvey Valley Rd. (33N02), 1.7 mi N of Hwy 44, E side of Grays Valley, E of Poison Lake. On the bed of a vernal pool in a meadow.
1719
Comment
CHSC6207
Navarretia breweri
W. Vinyard
1946-6-12
Lassen
Eagle Lake. Willow Creek.
1463
Comment
RSA123149
Navarretia breweri
L. R. Short, J. Warren
1936-6-5
S- 374
Lassen
Lassen [National] Forest: MDM, Burgess Spr. Exp. Range
1799
Comment
UCR119029
Navarretia intertexta
Beecher Crampton
1954-7-6
2072
Lassen
Modoc Plateau, 17 miles south of Ravendale along US highway 395.
1524
Comment
JEPS121309
Navarretia intertexta subsp. intertexta
Lowell Ahart, John Dittes
2013-7-22
18869
Lassen
10 yards S of the man-made pond, about 140 yards N of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley.
Comment
JEPS124382
Navarretia intertexta subsp. intertexta
Lowell Ahart, John Dittes
2015-11-14
20303
Lassen
Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
Comment
CHSC112979
Navarretia intertexta subsp. propinqua
Lowell Ahart; John Dittes
2013-7-22
18853
Lassen
Drainage filled with dirt from construction of a pond, 10 yards south of the man made pond, about 140 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
CHSC34347
Navarretia intertexta subsp. propinqua
K. R. Stern
1974-6-26
5854
Lassen
Ditch bank beside Railroad track, e side of Poison Lake Rd. to Pittville, 1.8 mi nw of intersection with Hwy. 44.
Comment
JEPS106521
Navarretia intertexta subsp. propinqua
L. P. Janeway
2004-6-26
8144
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
CHSC6202
Navarretia leptalea
J. B. Kimsey
1946-6-26
Lassen
Pine Creek, Eagle Lake.
1615
Comment
JEPS19812
Navarretia leucocephala
Rimo Bacigalupi with S. Galen Smith
1957-6-28
6002
Lassen
3.1 mi s Madeline (along U.S. Highway 395); Madeline Plains
1615
Comment
UC909068
Navarretia leucocephala subsp. bakeri
G. L. Stebbins Jr.
1949-8-6
4003 b
Lassen
between Susanville and McArthur (edge of Feather Lake); Feather Lake
1676
Comment
JEPS114396
Navarretia leucocephala subsp. minima
Lowell Ahart, John Dittes
2008-6-20
14952
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 7.0 miles (air) northeast of Bieber
1263
Comment
UC1191630
Navarretia leucocephala subsp. minima
Malcolm A. Nobs and S. Galen Smith
1949-5-29
756
Lassen
Nubieber, on the Great Northern Railway Nubieber
Comment
SEINET2440301
Navarretia linearifolia subsp. linearifolia
Leigh A. Johnson
2006-7-2
06 -138
Lassen
Lassen Nat. Forest, Long Lake vicinity. Off Hwy 44 at mile marker 20.74 (just E of jct between 44 and county road A21). Along shore between trees and water's edge, particularly at point where spur from Hwy 44 connects with road next to lake.; 0
1736
Comment
UC1137583
Navarretia linearifolia subsp. linearifolia
A. Simontacchi
1940-6-4
803
Lassen
7.0 mi sw Jacks Lake; Lassen National Forest, Halls Flat Quadrangle
Comment
UC1184061
Navarretia linearifolia subsp. linearifolia
Jean Langenheim
1957-6-22
4368
Lassen
Said Valley Said Valley (northeastern part Lassen County)
Comment
SEINET12319552
Navarretia minima
L. B. Barlow
1967-1
82
Lassen
6 mi N Susanville, Hwy 139
1524
Comment
CHSC89726
Navarretia sinistra subsp. sinistra
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
JEPS27169
Nemacladus capillaris
Lauramay T. Dempster
1961-6-17
1673
Lassen
about 4 mi sw Gold Run Creek junction with Richmond Road (Gold Run Creek, s of Susanville); Gold Run Creek
Comment
POM73805A
Nemophila parviflora var. austiniae
Marcus E. Jones
1897-7-1
s.n.
Lassen
Susanville at Perkin s Ranch.
1524
Comment
RSA122626
Nemophila parviflora var. austiniae
L. R. Short, J. Warren
1936-6-9
S- 404
Lassen
Burgess Spring Experiment Range.
1845
Comment
CHSC55804
Nicotiana attenuata
Vernon H. Oswald
1991-9-23
4875
Lassen
Lassen Volcanic Park. Butte Lake in the northeast corner of the park. Collected on the strand of the lake at its outlet; along the east side of the lake.
1841
Comment
JEPS118498
Nicotiana attenuata
A. Holmen
23 August 2011
CA 320 -96
Lassen
South US hwy 3959 to Termo, turn left onto Lassen Co. Rd 508 (Juniper Ridge Rd). Follow road for 8.5 miles and turn North. Travel 4 miles and take left fork. Travel across meadow (0.3 mi) and turn left. Follow road for 2.5 miles and park. (Note: Need landowner permission to access this site)
Comment
JEPS97321
Nicotiana attenuata
Vernon H. Oswald and L. Ahart
1995-8-14
7182
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
1645
Comment
SEINET10832656
Nicotiana attenuata
Mary Susan Taylor
1974-1
Taylor 270
Lassen
Vicinity of Eagle Lake, ca. 13 mi NW of Susanville.
Comment
UCD126693
Nicotiana attenuata
Gerald Dickinson
1963-7-17
108
Lassen
at entrance of Eagle Lake recreation site, Highway 139.
1559
Comment
CHSC54175
Nothocalais troximoides
Vernon H. Oswald
1991-5-28
4627
Lassen
Wayman Barn at the west end of Hunt Rd, Ash Creek Wildlife Area, ca. 5 miles northeast of Bieber. East of the barn.
1264
Comment
CHSC60720
Nothocalais troximoides
Vernon H. Oswald; Lowell Ahart
1993-6-14
5504
Lassen
Champs Flat Rd. (Lassen A21/105, Forest 32N02), 1.8 mi N of Hwy 44, between Poison Lake and Susanville.
1749
Comment
UC1609113
Nothocalais troximoides
Vernon H. Oswald and Lowell Ahart
1993-6-14
5504
Lassen
Champs Flat Rd. (Lassen A21/105, Forest 32N02) 1.8 mi n Hwy 44 (between Poison Lake and Susanville)
1749
Comment
CAS-BOT-BC171462
Oenothera boothii
Louella Bass
1978-5-18
s.n.
Lassen
Amedee
Comment
JEPS124827
Oenothera cespitosa
M. L. Wheelis
1964-6-30
125
Lassen
16 miles north of Hallelujah Junction, highway 395.
Comment
JEPS124824
Oenothera deltoides
B. Wenegrat
1969-7-8
52
Lassen
off H. 395 8 miles S of Milford.
Comment
CHSC36283
Oenothera deltoides subsp. piperi
M. S. Taylor
1982-6-12
4652
Lassen
Both sides of Hwy 395, ca. 1 mi n of Milford.
1280
Comment
CHSC71384
Onopordum acanthium
Vernon H. Oswald; Beth Corbin, Gary Schoolcraft
1998-7-13
9262
Lassen
Near Bieber on Susanville Rd. (A2) 2.5 mi east of Hwy. 299. Roadside and fields.
1280
Comment
CAS-BOT-BC350046
Oreostemma alpigenum var. andersonii
John Thomas Howell
1934-7-9
12515
Lassen
Bridges Creek Spring
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
CHSC105235
Orobanche californica subsp. jepsonii
Lowell Ahart; John Dittes
2010-7-31
16985 A
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
CHSC29921
Orobanche corymbosa
Robin L. Ondricek
1978-6-27
76
Lassen
At Brockman Flat Lava Beds.
1584
Comment
UC1137776
Orobanche corymbosa subsp. corymbosa
August L. Hormay
1934-7-2
Lassen
Lassen National Forest, 1/4 mile NW of Black's Mountains, Headquarters.
Comment
JEPS22322
Orobanche uniflora subsp. occidentalis
Peter H. Raven and Otto T. Solbrig
1958-6-16
13251
Lassen
4.5 miles east of Westwood on State Highway 36.
Comment
RSA408800
Orthocarpus
Rockwell
1925-7-1
s.n.
Lassen
Eagle Lake
Comment
RSA14096
Orthocarpus campestris
Elmer I. Applegate
1929-6-24
5884
Lassen
North edge of the town of Beiber, Pit River.
Comment
SD7034
Orthocarpus copelandii var. cryptanthus
Mrs. R. M. Austin
1882-8-9
Lassen
Hills - near Hot Spring, Val.
Comment
CHSC27677
Orthocarpus cuspidatus subsp. cryptanthus
Jerry Sndgrass
1978-6-28
5
Lassen
Lower Dry L., E of Eagle L.
1645
Comment
CHSC5910
Orthocarpus cuspidatus subsp. cryptanthus
M. West
1946-6-20
Lassen
Edge of Grasshopper Valley.
1630
Comment
RSA39737
Orthocarpus lacerus
Philip A. Munz
1947-5-20
11890
Lassen
Milford.
1265
Comment
POM82978
Osmorhiza berteroi
Marcus E. Jones
1897-6-28
s.n.
Lassen
Diamond Mountain. Susanville. Perkin s Ranch.
1829
Comment
SEINET178349
Osmorhiza berteroi
Marcus E. Jones
1897-6-28
Lassen
Diamond Mt., Susanville, Perkin's Ranch.
1829
Comment
POM105807
Oxytheca dendroidea
Marcus E. Jones
1897-6-22
s.n.
Lassen
10 miles south of Amedee. [Lassen or Plumas Co.]
1220
Comment
UC30052
Oxytheca perfoliata
J. Burtt Davy
Jun 17 1897-Jun 24 1897
Lassen
Amedee Honey Lake Valley
Comment
HSC81188
Packera cana
Thomas W. Nelson, Jane P. Nelson
1980-7-6
5990
Lassen
Along Adin-Madelin Rd., 16 mi. E of Adin in Ash Valley
1555
Comment
UC35987
Packera eurycephala var. eurycephala
M. S. Baker and Frank Nutting
1894-7-2
Lassen
Dixie Mts.
Comment
CHSC5217
Packera multilobata
A. Santos
1946-6-17
Lassen
Eagle Lake. Mr. Fredonyer Rd.
2072
Comment
CHSC64760
Packera multilobata
Vernon H. Oswald
1995-5-31
6797
Lassen
Modoc Plateau. Smoke Creek Ranch Rd. 0.4 mi e of Hwy. 395, between Litchfield and Ravendale.
1383
Comment
HSC95271
Packera pseudaurea var. pseudaurea
Gordon Leppig
1998-7-12
948
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
CAS-BOT-BC10386
Paeonia brownii
J. T. Howell
1955-7-19
30820
Lassen
East side of Beckwourth Pass
1493
Comment
CHSC6195
Paeonia brownii
P. Balch
1955-7-22
Lassen
Roadside meadow 3 1/2 mi. from Antelope Lookout. Eagle Lake.
2133
Comment
HSC26234
Paeonia brownii
D. H. Norris, T. Nelson, S. Dowty
1971-6-22
19260
Lassen
Harvey Valley near Cone Springs
Comment
UC1126132
Paeonia brownii
A. Simontacchi
1940-6-8
834
Lassen
Halls Flat Ranger Station Lassen National Forest, Halls Flat Quadrangle
Comment
CAS-BOT-BC10387
Paeonia brownii
J. T. Howell; Gordon H. True; Margaret Williams
1973-5-12
49158
Lassen
In cemetary, Janesville
1295
Comment
HSC63735
Paeonia brownii
Teresa Prendusi
1980-4-22
Lassen
Along State Rte. 139, 0.5 mi. NE of Susanville
1280
Comment
CHSC93670
Panicum capillare
Lowell Ahart; John Dittes
2005-6-2
11973
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
RSA126977
Panicum capillare
H. S. Yates
1936-8-11
6073
Lassen
Baxter Creek
1280
Comment
JEPS107455
Pectocarya penicillata
Lowell Ahart, John Dittes
2005-6-1
11907
Lassen
Road edge, 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
JEPS94120
Pectocarya penicillata
Vernon H. Oswald and Lowell Ahart
1998-5-22
9092
Lassen
Hwy. 395 at intermittent drainage crossing the rd. 2.3 mi. s. Milford
1255
Comment
SEINET13352677
Pectocarya penicillata
A. Tiehm
1980-1
5753
Lassen
N end of Honey Lake Valley, 2 air miles NW of Wendel.
1231
Comment
CAS-BOT-BC266654
Pedicularis centranthera
G. Schoolcraft
1989-5-3
1862
Lassen
NW corner of Secret Valley
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
JEPS3332
Pedicularis groenlandica
George Gillett
1952-7-29
119
Lassen
w slopes of Paradise Meadow; Lassen Volcanic National Park
2148
Comment
RSA121814
Pedicularis semibarbata
G. A. Fischer, Irwin H. Johnson
1933-7-14
F- 272
Lassen
Lassen Forest.
1738
Comment
SD77352
Penstemon deustus
Francis W. Pennell
1940-6-7
25722
Lassen
Route 299, 11 miles west of Nubieber
1096
Comment
RSA516352
Penstemon deustus subsp. sudans
Barbara Ertter
1987-6-16
7178
Lassen
Skeedaddle Mtns on NE side of Honey Lake, below ridge 1 mile W of Hot Springs
1829
Comment Read comments Mar 25 2010
HSC81803
Penstemon deustus var. pedicellatus
Thomas W. Nelson, Jane P. Nelson
1980-7-6
6035
Lassen
Ash Valley, along branch road off Adin-Madeline Rd., just S of bridge over Ash Creek, 16 mi. SE of Adin, 2.5 mi. SE of junction with main road
1555
Comment
JEPS107844
Penstemon deustus var. pedicellatus
Lowell Ahart, John Dittes
2005-6-2
11979
Lassen
North side of a poor dirt road, 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
1410
Comment
RSA165523
Penstemon deustus var. pedicellatus
Clare B. Hardham
1961-6-17
7532
Lassen
Rte. 395 between Lassen and Alturas.
Comment
CHSC25147
Penstemon gracilentus
B. Anthony
1967-7-10
263
Lassen
Deans Meadow, 6.8 mi from Eagle Lake Biological Station.
1920
Comment
POM44653
Penstemon gracilentus
Marcus E. Jones
1897-6-21
s.n.
Lassen
Chat.
1616
Comment
RSA746506
Penstemon gracilentus
K. M. Meyer, A. Townesmith
2007-7-23
157
Lassen
Lassen National Forest. 3.9 miles SW on 32N10 off hwy. 44. (turn at rest area).
1900
Comment
UC27451
Penstemon gracilentus
M. S. Baker and Frank Nutting
1894-7-12
Lassen
Pine Creek Pine Creek
Comment
RSA668193
Penstemon gracilentus
Karl Vincent, Charlotte A. Labbe
1986-7-19
4382
Lassen
Sierra Nevada, Roop Mtn. Along CA A1 at Eagle Lake Summit, ca 7.6 mi N of jct. CA 36, ca 7 air miles NW of Susanville.
1933
Comment
SEINET10325483
Penstemon gracilentus
K. A. Vincent
1986-7-19
4382
Lassen
Sierra Nevada Roop Mtn.; common in burned area in pine-spruce forest along CA A1 at Eagle Lake Summit ca 7.6 mi N of j
1932
Comment
CHSC23709
Penstemon heterophyllus var. purdyi
Robert Smallwood
1970-6-27
123
Lassen
Dean's Meadow. North east edge.
Comment
CHSC66733
Penstemon neotericus
Vernon H. Oswald; Lowell Ahart
1996-8-1
8118
Lassen
Junction of Forest Rd. 28N56 (D-line) and the spure road to Indian Ole Dam on Mountain Meadows Reservoir, SW of Westwood.
1536
Comment
NY627262
Penstemon neotericus
A. A. Heller
1938-6-22
15181
Lassen
1 mile south of Westwood
Comment
SBBG28997
Penstemon neotericus
D. D. Keck
1930-7-23
957
Lassen
E of Westwood
1493
Comment
CHSC4267
Penstemon roezlii
K. R. Stern
1967-6-24
2417
Lassen
Murrer Meadow Road, ca. 3 mi. E of Eagle Lake Biological Station.
1554
Comment
CHSC60859
Penstemon roezlii
Vernon H. Oswald; Lowell Ahart
1993-6-28
5618
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
HSC81496
Penstemon roezlii
Thomas W. Nelson, Jane Nelson
1980-7-6
6021
Lassen
Along Adin-Madeline Rd. 0.5 mi. W of Moll Reservoir.
1585
Comment
NY650100
Penstemon roezlii
G. Schoolcraft
1982-6-16
701
Lassen
North of Shinn Ranch
1548.4
Comment
POM195122
Penstemon roezlii
D. D. Keck
1930-7-23
954
Lassen
12 miles west of Susanville.
1677
Comment
UC1924562
Penstemon roezlii
Debra Valov
2006-5-29
2006034
Lassen
Bieber off County Rd A2 c. 8.7 km east of Hwy 299
1294
Comment
JEPS103216
Penstemon roezlii
G. Schoolcraft
1989-7-3
1947
Lassen
Diamond Mtns. on Diamond Peak
2346
Comment
CAS-BOT-BC239505
Penstemon rydbergii var. oreocharis
James Jokerst
1983-7-25
1895
Lassen
Near Madeline Plains
1614
Comment
CAS-BOT-BC239507
Penstemon rydbergii var. oreocharis
John Thomas Howell
1934-7-7
12460
Lassen
Bogard Ranger Station
Comment
CAS-BOT-BC239511
Penstemon rydbergii var. oreocharis
L. Constance
1938-6-10
2322
Lassen
1.5 miles northeast of Robber Creek, near Westwood
1219
Comment
CHSC59826
Penstemon rydbergii var. oreocharis
Mary Meyer
1980-7-9
Lassen
In dry meadows 1 mi northwest of Horse Camp Spring.
1706
Comment
NY651252
Penstemon rydbergii var. oreocharis
G. Schoolcraft
1985-6-12
1418
Lassen
Edge of Grasshopper Valley, at south end.
1615.4
Comment
RSA702452
Penstemon rydbergii var. oreocharis
L. P. Janeway
2004-6-26
8161
Lassen
High Cascade Range. At Patterson Well in Patterson Flat; Blacks Mountain Experimental Forest.
1767
Comment
UC1012182
Penstemon rydbergii var. oreocharis
Francis W. Pennell
1940-6-10
25774
Lassen
Route 36 road to Coppervale R.S., e Westwood; e of Westwood
1493
Comment
UC54980
Penstemon rydbergii var. oreocharis
J. B. Davy
Lassen
Amedee
Comment
CAS-BOT-BC239509
Penstemon rydbergii var. oreocharis
A. A. Heller
1938-6-22
15182
Lassen
One mile east of Westwood
1524
Comment
RSA340000
Penstemon speciosus
Noel Holmgren, Patricia K. Holmgren
1980-7-5
9518
Lassen
Upper Smoke Creek drainage, 14.8 (9.2 mi) east of US Hwy 395 via Rye Patch Canyon, 19 km (12 mi) airline distance ESE of Ravendale.
1677
Comment
SBBG26872
Penstemon speciosus
D. D. Keck
1930-7-23
50
Lassen
Susanville
1280
Comment
UC614464
Penstemon speciosus
L. Constance
1938-6-11
2331
Lassen
3.5 mi n Secret Valley (Madeline Plains on Susanville-Alturas road); n of Secret Valley, Madeline Plains
1524
Comment
NY661063
Penstemon speciosus
D. D. Keck
1935-6-25
3768
Lassen
Ca. 2 miles west of Westwood on road to Chester at Co. line.
Comment
CAS-BOT-BC239666
Penstemon sudans
John Thomas Howell
1974-7-9
50479
Lassen
Between Susanville and SW end of Eagle Lake
1828
Comment
CHSC13647
Penstemon sudans
M. S. Taylor
1974-7-13
310
Lassen
Ca 15 ft w of Mohagany Lake, ca. 3 mi s of Eagle Lake Field Station, ca. 13 mi nw of Susanville.
1524
Comment
JEPS84973
Penstemon sudans
Barbara Ertter with Gary Schoolcraft
1987-6-16
7178
Lassen
below ridge ca 1 mi w Hot Springs VABM (ne side Honey Lake); Skeedaddle Mountains, Honey Lake
1828
Comment
NY661799
Penstemon sudans
F. W. Pennell
1940-7-23
26253
Lassen
Route 36, west of Susanville
1371.6
Comment
NY661802
Penstemon sudans
W. W. Eggleston
1911-7-7
7177
Lassen
Secret Valley
1330
Comment
NY661807
Penstemon sudans
B. J. Ertter
1987-6-16
7178
Lassen
Skeedaddle Mountains on northeast side of Honey Lake, ca. 1 mile west of Hot Springs VABM
1828.8
Comment
RSA0029641
Penstemon sudans
Anthony Baniaga, R. Bomberger
2011-7-28
478
Lassen
Lassen National Forest. Highway 36, ca. 1/4 mile E of 'Fredonyer Pass Winter OHV Parking Lot.'
1950
Comment
NY763152
Penstemon venustus
K. A. Vincent
1987-6-25
4436
Lassen
Sierra Nevada, southeast side of Fredonyer Butte; along north side of CA 36 ca. 11.5 miles WSW of Susanville, east of Fredonyer Pass
1585.0
Comment
UC2027331
Penstemon venustus
Anthony Baniaga and R. Bomberger
2011-7-28
479
Lassen
Lassen National Forest. Along Highway 36. Fredonyer Pass quadrangle
Comment
CDA26041
Peraphyllum ramosissimum
T. C. Fuller, R. C. Bechtel, R. Bradley
1981-7-9
20382
Lassen
On slope above the west side of Smoke Creek Reservoir.
0
Comment
CHSC27656
Perideridia bolanderi
Jerry Snodgrass
1978-7-11
54
Lassen
Papoose Creek, SE corner of Eagle L.
1584
Comment
POM82582
Perideridia bolanderi subsp. bolanderi
Marcus E. Jones
1897-6-21
s.n.
Lassen
Chat.
1616
Comment
UC1004694
Perideridia bolanderi subsp. bolanderi
R. C. Bechtel
1954-7-12
Lassen
Bridge Creek Camp
Comment
HSC73083
Perideridia gairdneri subsp. gairdneri
Cindy Prouty
1978-7-11
19
Lassen
Papoose Creek, S of Gallatin
1585
Comment
UC1390005
Perideridia oregana
T. I. Chuang and F. Gleason
1963-8-22
5923
Lassen
on Hwy 299 0.6 mi se Bieber
Comment
CAS-BOT-BC423341
Peritoma platycarpa
H. D. Ripley; R. C. Barneby
1943-6-15
5757
Lassen
Nr. Viewland
1310
Comment
JEPS79215
Phacelia adenophora
L. R. Heckard with R. C. Bacigalupi
1980-6-11
5264
Lassen
along US 395 s Deep Creek crossing (11.3 mi n of Litchfield, flat area and wash between railroad and hwy)
1463
Comment
RSA38634
Phacelia adenophora
P. A. Munz
1947-5-19
11879
Lassen
Highway 395, 4 miles south of Madeline.
Comment
RSA722579
Phacelia adenophora
R. R. Halse
1975-6-20
1198
Lassen
Madeline Plains, along Lassen County Road 508, 1.5 miles east of Termo.
1590
Comment
SEINET3091787
Phacelia adenophora
Arnold Tiehm, Margaret Williams, Jan Nachlinger
1988-6-2
11701
Lassen
South side of Shaffer Mountain, 3.4 road miles north of the Wendel road on highway 395 from Susanville to Alturas, west of the highway.
1387
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
UC1603542
Phacelia adenophora
Arnold Tiem, Margaret Williams, and Jan Nachlinger
1988-6-2
11701
Lassen
on hwy 395 3.4 road mi n Wendel road (from Susanville to Alturas, s side of mt., w of hwy); Shaffer Mt.
1386
Comment
UC735114
Phacelia adenophora
Lincoln Constance
1946-7-3
3100
Lassen
16 mi w Termo; Grasshopper Valley
1676
Comment
POM252966
Phacelia adenophora
A. A. Heller
1938-6-23
15210
Lassen
Midway between Mapes and Secret Valley on Hwy 395.
1372
Comment
POM72872
Phacelia adenophora
C. C. Bruce
1898-06
2198
Lassen
Madeline Plains.
Comment
JEPS78146
Phacelia hastata
Gary W. Zamzow
1972-7-19
89
Lassen
Hwy 139 15 mi s Adin; Willow Creek campground
1524
Comment
UC107564
Phacelia heterophylla subsp. virgata
T. S. Brandegee
1892-6-26
Lassen
Milford
Comment
POM195121
Phacelia heterophylla subsp. virgata
D. D. Keck
1930-7-23
956
Lassen
Fifteen miles west of Susanville.
1524
Comment
UC1259992
Phacelia humilis
Jeffrey Huber
1971-6-2
111
Lassen
on CA Hwy 139 approx. 30 mi n Susanville
1645
Comment
SD61075
Phacelia humilis
Darley F. Howe
1964-8-1
3914
Lassen
Modoc Natl. Forest, Warner Mts., 4.8 mi. from Harvey Creek on ridge road.
2133
Comment
CHSC68891
Phacelia humilis var. humilis
Vernon H. Oswald; Lowell Ahart
1997-6-24
8620
Lassen
South of susanville on the north side of Diamond Mtn. at an impoundment on the edge of Forest Rd. 29N43 ca. 7.4 miles east of Gold Run Rd. (29N10), ca. 2.7 mi east of Lassen NF boundary.
2036
Comment
RSA38465
Phacelia humilis var. humilis
P. A. Munz
1947-5-20
11885
Lassen
Laufman Forestry Public Camp above Milford.
1524
Comment
JEPS79142
Phacelia inundata
L. R. Heckard with R. Bacigalupi
1980-6-11
5245
Lassen
along US 395 s Deep Creek crossing (11.3 mi n of Litchfield)
1463
Comment
RSA83225
Phacelia inundata
Verne Grant, Alva Grant
1947-9-5
8374
Lassen
Northwest shore of Eagle Lake
Comment
CHSC12417
Phacelia linearis
Anne Linda Brisk
1969-6-25
20
Lassen
Growing behind Shepherd's Hall at ELBS.
1554
Comment
CHSC5265
Phacelia linearis
J. Wolf
1946-6-20
Lassen
Eagle Lake. Grasshopper Valley.
1624
Comment
CHSC726
Phacelia linearis
F. Hughes
1935-6-2
Lassen
Near Susanville.
1524
Comment
JEPS1192
Phacelia linearis
Mrs. C. C. Bruce
June 1898
2190
Lassen
Madaline Plains
Comment
SEINET5519037
Phacelia linearis
J. Young
1982-6-9
s.n.
Lassen
Adin, M. Meyer's Ranch
1372
Comment
UCD20363
Phacelia linearis
Joe DiTomaso
2002-6-4
s.n.
Lassen
Lassen County, about 3 miles northwest of the junction between Nevada, Modoc and Lassen counties. Study plots near Susanville.
Comment
NY1056443
Phacelia lutea var. glandulifera
N. H. Holmgren
1978-6-11
8931
Lassen
Upper Smoke Creek, south side of Observation Peak, 7.6 km (4.7 mi) northeast of Rye Patch Canyon summit, 18.5 km (11.5 mi) airline distance east-southeast of Ravendale.
1700
Comment
SD58172
Phacelia mutabilis
Frances Payne
1929-7-12
85
Lassen
NE Warner Mts., Ridge above Lost Lake
2438
Comment
UC107462
Phacelia racemosa
Mrs. R. M. Austin
1879-1
Lassen
Eagle Lake
Comment
CHSC60749
Phacelia ramosissima var. eremophila
Vernon H. Oswald; Lowell Ahart
1993-6-14
5540
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
UC1609295
Phacelia ramosissima var. eremophila
Vernon H. Oswald and Lowell Ahart
1993-6-14
5540
Lassen
Eagle Lake Rd (Lassen A1) at Sandy Beach on W shore of lake (ca 2.0 mi ne of Spaulding Tract Rd (Rd 518, 33N89), dunes on n side of road); Eagle Lake
1566
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
CAS-BOT-BC179912
Phacelia thermalis
Peter H. Raven; Otto T. Solbrig
1958-6-17
13297
Lassen
Hwy 395, 4.8 miles south of Madeline
Comment
CHSC64879
Phacelia thermalis
Vernon H. Oswald; Lowell Ahart
1995-6-19
6902
Lassen
Between Litchfield and Ravendale on Smoke Creek Ranch Rd., 8.4 mi e of Hwy. 395.
1444
Comment
NY1057984
Phacelia thermalis
P. A. Munz
1947-5-19
11878
Lassen
Highway 395 4 miles south of Madeline
Comment
CAS-BOT-BC265821
Phalaris arundinacea
John Thomas Howell
1975-7-23
51402
Lassen
Susanville, Sierra Nevada
1295
Comment
CAS-BOT-BC253549
Phleum alpinum
G. Schoolcraft
1997-8-6
2668
Lassen
Diamond Mtn.
2316
Comment
CHSC35954
Phlox diffusa
M. S. Taylor
1982-5-7
4430
Lassen
Reno Junction and along old road parralleling Hwy 70, just e of Beckwourth Pass.
1676
Comment
JEPS69974
Phlox diffusa
Frances D. Payne
1929-7-12
76
Lassen
above Lost Lake (se extremity of Warner Mountains); Warner Mountains
2286
Comment
UC1137767
Phlox douglasii subsp. rigida
August L. Hormay
1934-7-10
Lassen
Halls Flat Lassen National Forest
1706
Comment
CHSC52771
Phlox hoodii subsp. canescens
L. P. Janeway
1990-7-4
3765
Lassen
Dry gravelly bench near eas-side of saddle ca 0.8 mi NE of Meadowview Peak.
1981
Comment
UC579783
Phlox longifolia subsp. compacta
David D. Keck and J. Clausen
1935-6-24
3744
Lassen
2 mi s Ravendale
Comment
UC52648
Phlox speciosa subsp. occidentalis
M. S. Baker and Frank Nutting
1894-7-3
Lassen
Dixie Mts.
Comment
UC23951
Phlox stansburyi
Mrs. C. C. Bruce
Jun 1898
2332
Lassen
Madeline Plains
Comment
RSA38466
Phlox stansburyi
P. A. Munz
1947-5-19
11884
Lassen
Madeline
1677
Comment
UC932052
Phlox stansburyi
Verne Grant and Alva Grant
1947-5-5
7979
Lassen
n of Honey Lake Valley
Comment
UCD118467
Phlox stansburyi
Geo C. Wood
1940-4-18
s.n.
Lassen
Coffin Ranch near Susanville.
Comment
POM94709
Phoenicaulis cheiranthoides
Marcus E. Jones
1897-6-28
s.n.
Lassen
Top of Diamond Mt. Susanville. Perkin's Ranch.
2226
Comment
JEPS127162
Phoradendron bolleanum
Lowell Ahart, John Dittes
2016-7-13
21136
Lassen
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 southern slope of Big Valley.
Comment
CAS-BOT-BC250984
Phragmites australis
G. Schoolcraft
1996-9-11
2581
Lassen
Lower end of Willow Creek near Belfast
1341
Comment
CAS-BOT-BC60738
Physaria occidentalis
John Thomas Howell; Gordon H. True; Wayne Dakan
1974-7-30
50655
Lassen
Sierra Nevada. Summit ridge of Diamond Mountain.
2346
Comment
CHSC60805
Pilularia americana
Vernon H. Oswald; Lowell Ahart
1993-6-28
5623
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
RSA772875
Pilularia americana
R. F. Thorne, Larry E. DeBuhr
1975-8-22
47209
Lassen
Along Highway 395 ca. 5 miles north of Madeline and ca. 5.5 miles south of Modoc county line
1616
Comment
HSC1474
Pinus contorta
R. A. Magie
1964-5-1
61
Lassen
15 mi. W of Susanville on Hwy. 44
1524
Comment
UCD133167
Pinus contorta subsp. murrayana
Beecher Crampton
1960-6-21
5743
Lassen
Gurnsey Creek. 3.5 miles E of Child's Meadow, along State Hwy. 36.
1463
Comment
SEINET3873297
Pinus flexilis
Stanley L. Welsh, N. Duane Atwood
2001-6-13
28124
Lassen
Ca 2 mi n of jct of Hwy 395 and Hwy 70, e of Beckwourth Pass.; 0
1575
Comment
SEINET11604123
Pinus jeffreyi
D. Charlet, Darryl LeMaire
1994-7-8
1941
Lassen
Sierra Nevada, Near summit of Doyle grade
1707
Comment
NY951542
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
UC1228178
Plagiobothrys
B. L. Kay
1961-6-28
Lassen
6 mi nw Madeline
Comment
CHSC84879
Plagiobothrys cognatus
Samantha Mackey Hillaire; Linnea Hanson, Catie Bishop
2003-9-21
355
Lassen
Lassen Volcanic National Park. Snag Lake; mudflat just N of an open stand of willows on the south shore of the lake; just east of where Grassy Creek flows into the lake. [Label says 'area near' latitude and longitude].
1900
Comment
UC526162
Plagiobothrys cognatus
John Thomas Howell
1934-6-10
11890
Lassen
15 mi. n. Susanville (on rd. to Horse Lake)
Comment
CHSC113070
Plagiobothrys cusickii
Lowell Ahart; John Dittes
2013-7-22
18870
Lassen
Drainage filled with dirt from construction of a pond, 10 yards south of the man made pond, about 140 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
CHSC99538
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
JEPS117204
Plagiobothrys cusickii
Lowell Ahart, John Dittes
2010-7-31
17014
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
CHSC112430
Plagiobothrys hispidulus
Lowell Ahart; John Dittes, Todd Sloat
2013-6-8
18730
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
SJSU8065
Plagiobothrys hispidus
J. W. Tilden
1960-6-27
1495
Lassen
Westwood
1524
Comment
UC1483821
Plagiobothrys kingii
G. Schoolcraft
1980-5-8
227
Lassen
s. Herlong
1255
Comment
HSC31353
Plagiobothrys mollis
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19273
Lassen
Harvey Valley near Cone Springs
Comment
POM73154
Plagiobothrys mollis
Marcus E. Jones
1897-6-21
s.n.
Lassen
Chat.
1311
Comment
CAS-BOT-BC228466
Plagiobothrys mollis
Clarence R. Quick
1962-6-17
62 25 B
Lassen
Swains Hole, S of Blacks Mountain Experimental Station
1554
Comment
CHSC112445
Plagiobothrys stipitatus var. micranthus
Lowell Ahart; John Dittes, Todd Sloat
2013-6-8
18771
Lassen
300 - 400 or more or less yards northwest of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
CHSC117209
Plagiobothrys tenellus
Lowell Ahart; John Dittes
2016-6-7
21006
Lassen
10 yards west of the pond, 80 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
CHSC93662
Plagiobothrys tenellus
Lowell Ahart; John Dittes
2005-6-2
11994
Lassen
Along a small wash, east 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
SEINET6170697
Platanthera dilatata var. leucostachys
C. G. Gulling
1905-1
Lassen
Comment
CHSC6278
Platanthera leucostachys
M. West
1946-7-7
Lassen
Butte Creek.
Comment
CHSC99738
Plectritis macrocera
Lowell Ahart; John Dittes
2008-6-20
14971
Lassen
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 7.0 miles (air) northeast of Bieber.
1263
Comment
JEPS26653
Plectritis macrocera
Lauramay T. Dempster
1961-6-17
1668
Lassen
about 4 mi sw of junction w Richmond Road (s of Susanville, Gold Run Creek); Gold Run Creek
Comment
UC1553411
Plectritis macrocera
G. Schoolcraft
1987-5-19
1702
Lassen
16 mi e of Adin (Ash Valley (RNA/ACEC)); Ash Valley
1554
Comment
CAS-BOT-BC326715
Pleiacanthus spinosus
M. S. Taylor
1982-8-19
5020
Lassen
Along old RR grade south of and paralleling Highway 70 just southeast of Beckwourth Pass on Plumas-Lassen county line
1584
Comment
UC1136987
Poa X fibrata
George A. Fischer and Irwin H. Johnson
1933-7-14
F 245
Lassen
Patterson Flat; Lassen Nat'l Forest
1737
Comment
HSC10643
Poa bulbosa
D. E. Anderson
1969-7-5
5000
Lassen
Freedonyer Pass, 15 mi. W of Susanville
1752
Comment
JEPS114748
Poa bulbosa
Lowell Ahart, John Dittes
2008-6-22
15035
Lassen
About 220 yards west of the road levee, on the banks of a small natural drainage, 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
CAS-BOT-BC255128
Poa cusickii
Beecher Crampton
1960-6-18
5708
Lassen
Long Valley, southern Warner Mountains, 3 miles E of Blue Lake
2133
Comment
CHSC91295
Poa cusickii subsp. cusickii
Lowell Ahart; John Dittes
2005-6-2
11927
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
JEPS70635
Poa cusickii subsp. cusickii
G. S. Crew and C. S. Robinson
1927-7-15
61
Lassen
sw Lassen Co. Clover Valley; Lassen Forest
1767
Comment
CAS-BOT-BC246864
Poa nervosa
John Thomas Howell
1934-6-14
12170
Lassen
Near Lost Lake, Warner Mts.
2438
Comment
CAS-BOT-BC247322
Poa pratensis
David D. Keck
1944-7-8
5448
Lassen
2 mi. E. of Westwood, in wet sod of meadow leading down to Mountain Meadows Reservoir
1524
Comment
CDA2366
Poa pratensis
A. A. Beetle
1941-6-28
2797
Lassen
10 miles west of Chester.
Comment
CHSC61599
Poa pratensis
Arthur C. Barrett
1915-6-3
18
Lassen
Plumas National Forest. Laufman Ranger Station. Meadow.
1463
Comment
UC1024691
Poa pratensis subsp. pratensis
Leo Whitney
1933-8-2
2154
Lassen
ca 8 mi nw Eagle Lake (Slate Creek); Lassen Nat'l Forest
1920
Comment
POM264256
Poa secunda
A. A. Beetle
1941-6-28
2794
Lassen
10 mi west of Chester, Rte.36
Comment
UCD90275
Poa secunda
A. A. Beetle
1941-6-28
2794
Lassen
10 miles W of Chester, rte 36.
Comment
UCD90454
Poa secunda
L. Whitney
1933-8-1
s.n.
Lassen
Harvey Mountain.
Comment
UC1037123
Poa secunda subsp. juncifolia
Leo Whitney
1935-6-23
3285
Lassen
near Camp 10 Fruit Grower's Supply Company
Comment
UC1137292
Poa secunda subsp. juncifolia
K. E. Bradshaw
1939-5-27
236
Lassen
Plot 39-1 Black Mt Experimental Forest; Lassen Nat'l Forest, Halls Flat Quadrangle
1752
Comment
UC589943
Poa secunda subsp. juncifolia
Leo Whitney
1936-5-26
3157
Lassen
10 mi e Adin (near Ash Creek)
Comment
UCD92243
Poa secunda subsp. juncifolia
Beecher Crampton
1960-6-18
5713
Lassen
Southern Warner Mtns., vicinity of Blue Lake Ranch.
1981
Comment
UCD92427
Poa secunda subsp. juncifolia
L. D. Whitney
1935-6-26
s.n.
Lassen
Near Fruit Grower's Supply Co., Camp 10.
Comment
CHSC30521
Poa secunda subsp. secunda
Sandra C. Morey
1980-4-26
78
Lassen
Hwy. 139, ca. 1.0 mi. s of jctn. with Hwy. 299.
1284
Comment
SEINET7294129
Poa secunda subsp. secunda
John Thomas Howell, Gordon H. True; Margaret Williams
1973-1
49197
Lassen
In open yellow pine forest, Elysian Valley northwest of Janesville.
1326
Comment
UC1024813
Poa secunda subsp. secunda
Leo Whitney
1935-6-19
3266
Lassen
Camp 10 Fruit Grower's Supply Company; Lassen Nat'l Forest
Comment
UC1024836
Poa secunda subsp. secunda
Leo Whitney
1935-6-10
3220
Lassen
Camp 10 Fruit Grower's Supply Company; Lassen Nat'l Forest
Comment
UC1132875
Poa secunda subsp. secunda
A. Simontacchi
1940-5-27
770
Lassen
9.3 mi nw Crater lake; Lassen Nat'l Forest, Halls Flat Quadrangle
Comment
UC1132877
Poa secunda subsp. secunda
K. E. Bradshaw
1939-5-27
236
Lassen
Black Mt Experimental Forest, center of Plot 39-1 Black Mt Experimental Forest; Lassen Nat'l Forest, Halls Flat Quadrangle
Comment
UC1136984
Poa wheeleri
L. R. Short
1936-4-30
S- 341
Lassen
Burgess Spring Experimental Range; Lassen Forest
1859
Comment
SEINET8729406
Polemonium micranthum
Unknown
1986-1
10378
Lassen
1.5 road miles southwest of Dodge Reservoir on the main road to Ravendale, near a windmill, T36N, R16E, S35, 5600 ft.
1707
Comment
NY182333
Polyctenium fremontii
H. D. D. Ripley
1944-5-30
5970
Lassen
South of Ravensdale.
1691.6
Comment
NY182307
Polyctenium fremontii var. confertum
G. Schoolcraft
1984-7-9
1287
Lassen
South of Fillman Road, 3.8 miles west of Hwy 395
1609.3
Comment
NY406791
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
UCR32584
Polygala subspinosa var. subspinosa
T. L. Wendt, E. J. Lott
1975-6-12
1031
Lassen
4.5 mi east of Rte. 395 on Smoke Creek Ranch Rd, east of Mud Flat
1372
Comment
UC1136918
Polygonum
George A. Fischer, Irwin H. Johnson
1933-7-12
F 192
Lassen
Lassen National Forest, (Dry Lake), Grass Valley Dry Lake; Lassen National Forest, , Grass Valley
1694
Comment
NY404577
Polygonum amphibium
G. H. True Jr.
1936-6-22
514
Lassen
Honey Lake Valley
1219.2
Comment
UC1536795
Polygonum amphibium var. emersum
Gordon H. True Jr.
1939-8-5
1041
Lassen
near Madeline; Tule Reservoir
Comment
UC1536797
Polygonum amphibium var. emersum
Gordon H. True Jr.
1939-7-6
1038
Lassen
George Bailey Ranch Honey Lake Valley
Comment
POM104579
Polygonum amphibium var. stipulaceum
Marcus E. Jones
1897-6-21
s.n.
Lassen
Chat.
1616
Comment
UC6641
Polygonum amphibium var. stipulaceum
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3323
Lassen
sloughs of Susan River Honey Lake Valley
Comment
SEINET10937589
Polygonum amphibium var. stipulaceum
Mary Susan Taylor
1974-1
Taylor 312
Lassen
Vicinity of Eagle Lake, ca. 13 mi NW of Susanville.
Comment
CAS-BOT-BC413910
Polygonum aviculare
James Jokerst
1983-7-24
1877
Lassen
Near Madeline Plains
1614
Comment
CAS-BOT-BC413932
Polygonum aviculare subsp. aviculare
John Thomas Howell
1973-7-10
49796
Lassen
Susanville
1295
Comment
CHSC36980
Polygonum aviculare subsp. neglectum
M. S. Taylor
1982-8-19
5021
Lassen
E side of Hwy 395, ca. 4 mi n of its jct with Hwy 70 at Hallelujah Junction.
1493
Comment
UC1536794
Polygonum bistortoides
Gordon H. True Jr.
1939-6-15
1036
Lassen
w Grasshopper Valley; Bullard Lake
Comment
UC726283
Polygonum bistortoides
A. A. Heller
1938-6-23
15141
Lassen
2 mi e Westwood
1524
Comment
UC849110
Polygonum bistortoides
A. A. Heller
1938-6-23
15141
Lassen
2 mi e Westwood
Comment
CAS-BOT-BC414488
Polygonum douglasii
W. R. Dudley
1893-6-23
s.n.
Lassen
Castle Lake Trail, near Mt. Shasta
Comment
CHSC60762
Polygonum douglasii subsp. johnstonii
Vernon H. Oswald; Lowell Ahart
1993-6-14
5518
Lassen
Eagle Lake Rd. (Lassen A1), 0.5 mi SW of Spaulding Tract Rd. (Rd. 518, 33N89), ca. 3 mi W of Eagle Lake.
1810
Comment
JEPS117589
Polygonum douglasii subsp. spergulariiforme
2010-7-31
16979
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
RSA0011553
Polygonum esotericum
Robert F. Thorne, Larry E. DeBuhr
1975-8-22
46999
Lassen
Along Highway 395 ca. 5 miles north of Madeline and ca. 5.5 miles south of Modoc county line.
1616
Comment
UC1924203
Polygonum lapathifolium
Debra Valov
2005-8-20
2005221
Lassen
Bieber; off County A2 c. 8 km east of Hwy 299
1271
Comment
CHSC58506
Polygonum polygaloides subsp. confertiflorum
Vernon H. Oswald
1992-7-3
5049
Lassen
Lassen Volcanic National Park. Trail from Juniper L. to Snag L., ca. 0.1 mi N of Cameron Meadow.
1950
Comment
CHSC58850
Polygonum polygaloides subsp. confertiflorum
Vernon H. Oswald; Lowell Ahart
1992-7-16
5104 a
Lassen
Long Lake on the S side of Hwy. 44 between Old Station and Susanville, 1.2 mi SE of County Rd. A21.
1745
Comment
CHSC66256
Polygonum polygaloides subsp. confertiflorum
Vernon H. Oswald; Lowell Ahart
1996-6-24
7856
Lassen
Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake. Locally abundant near a ditch on the W side of the meadow ca. 0.3 mi S of the cabins.
1633
Comment
JEPS22874
Polygonum polygaloides subsp. confertiflorum
Herbert L. Mason
Jul 29 1955-Jul 31 1955
14639
Lassen
Pine Creek Flat
Comment
CHSC61056
Polygonum polygaloides subsp. kelloggii
Vernon H. Oswald; Lowell Ahart
1993-8-3
5749
Lassen
Cooper Swamp located E of Silver Lake just E of the Caribou Wilderness, ca. 13 mi (air) N of Lake Almanor. In small patches of more of less bare ground along the E side of the swamp.
1932
Comment
UC1609434
Polygonum polygaloides subsp. kelloggii
Vernon H. Oswald and Lowell Ahart
1993-8-3
5749
Lassen
e Silver Lake (just e of Caribou Wilderness, ca 13 air mi n of Lake Almanor, e side of swamp); Cooper Swamp
1932
Comment
UC773864
Polygonum polygaloides subsp. kelloggii
L. R. Short and Wm. Gansberg
1936-6-8
S- 390
Lassen
Burgess Spring Experimental Range Lassen <National> Forest
1743
Comment
CHSC110775
Polygonum sawatchense subsp. oblivium
Dean Wm. Taylor
2012-7-18
21277
Lassen
Windmill Flat (tributary Juniper Creek, Pit River watershed, 11 miles S of Adin).
1706
Comment
UC1136922
Polygonum sawatchense subsp. sawatchense
George A. Fischer and Irwin H. Johnson
1938-7-14
F 248
Lassen
Lassen National Forest
1767
Comment
CAS-BOT-BC420157
Polygonum sawatchense subsp. sawatchense
Clarence R. Quick
1961-6-21
61 -18
Lassen
Adjacent to Road 21, Blacks Mountain Expermental [Experimental] Forest, northeast of Lassen Peak
1798
Comment
CAS-BOT-BC420159
Polygonum sawatchense subsp. sawatchense
G. Schoolcraft
1988-6-15
1814
Lassen
Ash Valley RNA/ACEC 16 miles east of Adin
1584
Comment
RSA161483
Polygonum shastense
Franklin Nutting
1894-7-30
s.n.
Lassen
Silver Lake.
Comment
CHSC67067
Populus fremontii
Willis Ball
1969-6-25
33
Lassen
Found in Upper Murrer's Meadow.
1584
Comment
SEINET10885945
Populus tremuloides
Karen M. Meyer, Andrew Townesmith
2007-7-21
Meyer 141
Lassen
Lassen National Forest. 1.3 mi. on rd. 110, off Hwy. A21.
1821
Comment
POM107357
Populus trichocarpa
Marcus E. Jones
1897-6-25
s.n.
Lassen
Susanville.
1341
Comment
JEPS114988
Porterella carnosula
Lowell Ahart, John Dittes
2008-6-20
14963
Lassen
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 7.0 miles (air) northeast of Bieber
1263
Comment
SEINET3795835
Porterella carnosula
Noel H. Holmgren, Patricia K. Holmgren
1978-6-10
8901
Lassen
Madeline Plains, Coyote Flat, 14.5 KM (9 mi) ENE of Termo and 13 km (8 mi) airline deistance
1631
Comment
UC1483818
Porterella carnosula
G. Schoolcraft
1980-7-16
318
Lassen
Nelson Corral Reservoir
1804
Comment
CHSC118487
Porterella carnosula
Don Lepley
2015-5-29
Lassen
Lassen National Forest. Eagle Lake Ranger District. Southeast corner of Pine Creek Valley, about seven air miles east of Bogard Rest Area.
1716
Comment
SEINET10460827
Porterella carnosula
Hormay
1934-5-14
HORMAY s.n.
Lassen
T32N R9E
1676
Comment
SEINET10460831
Porterella carnosula
Gillett
1957-7-29
GILLETT 938
Lassen
Marsh area near west end of lake, on drying mud flats
2073
Comment
CHSC100538
Potamogeton foliosus
Daniel B. Marcum
2007-7-25
Lassen
6 miles south of Bieber in Big Valley. Robin Harbert's wild rice field.
1280
Comment
CAS-BOT-BC267149
Potamogeton foliosus
Wm. Anderson
1963-5-12
s.n.
Lassen
Highrock (between Wendel and Nevada line)
Comment
HSC17770
Potamogeton natans
Fred J. Kindel
1955-7-14
Lassen
Mt. Meadows Reservoir
Comment
JEPS103226
Potamogeton nodosus
G. Schoolcraft
1996-9-11
2563
Lassen
Willow Creek below petroglyphs above dam
1341
Comment
UC1100078
Potamogeton pectinatus
Verne Grant, Irving Schneider
1947-7-29
8184
Lassen
e end of Tule Lake
Comment
CAS-BOT-BC453913
Potamogeton pectinatus
Arnold Tiehm; Gary Schoolcraft
1984-8-14
9246
Lassen
Buckhorn Reservoir on the south side of Buckhorn road to Ravendale, about 6 road miles west of the state line
1698
Comment
CAS-BOT-BC453914
Potamogeton pectinatus
Verne Grant; Irving Schneider
1947-9-6
8380
Lassen
North arm of Eagle Lake
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
CHSC6258
Potentilla biennis
1944-6-21
Lassen
Near Eagle Lake shore line.
1584
Comment
OBI77552
Potentilla biennis
Anthony Baniaga
2011-7-23
460
Lassen
Lassen Natl Forest. Poison Lake. Poison Lake quad. T32N R7E sec 4
1700
Comment
RSA123323
Potentilla glandulosa
L. R. Short
1936-6-10
s- 425
Lassen
[Unspecified]
1854
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
CHSC27742
Potentilla glandulosa subsp. ashlandica
N. E. Heiken
1978-7-5
76
Lassen
S of Eagle L., E shore of Mahogany L.
2060
Comment
CHSC67064
Potentilla gracilis
Willis Ball
1969-6-26
42
Lassen
Found in Papoose Meadows.
1584
Comment
JEPS44214
Potentilla gracilis var. fastigiata
G. S. Crew
1927-7-1
48
Lassen
Bogard Ranger Station pasture Lassen National Forest, Bogard Ranger Station pasture (sw Lassen County)
1712
Comment
HSC81543
Potentilla gracilis var. flabelliformis
Thomas W. Nelson, Jane P. Nelson
1980-7-6
6042
Lassen
Along Ash Creek at Ash Creek Campground
1494
Comment
JEPS121267
Potentilla gracilis var. flabelliformis
Lowell Ahart, John Dittes
2013-7-23
18899
Lassen
Along a small drainage, W of the road levee, about 100 yards W of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley.
Comment
CHSC4758
Potentilla millefolia
R. Carter
1967-7-14
614
Lassen
Hog Flat Reservoir, between highway 92 and shore of reservoir.
Comment
UC1128271
Potentilla millefolia
A. Simontacchi
1940-5-17
743
Lassen
5.9 mi s Patterson Mtn.; Lassen National Forest, Halls Flat Quad.
1706
Comment
UC1523752
Prunella vulgaris
Gary Schoolcraft
1981-6-25
482
Lassen
East Fork of Willard Creek
1584
Comment
CHSC106581
Prunus andersonii
C. Dow; D. Garrison
2008-5-3
Lassen
Fort Sage Mtns. OHV Trailhead and Trail to Indian Springs.
1439
Comment
CHSC1579
Prunus andersonii
A. Stone
1937-5-14
Lassen
Honey Lake region.
Comment
CHSC35955
Prunus andersonii
M. S. Taylor
1982-5-7
4424
Lassen
Reno Junction and along old road paralleling Hwy 70 just e of Beckwourth Pass.
1524
Comment
UC1128502
Prunus emarginata
A. Simontacchi
1940-6-4
799
Lassen
7.1 mi sw of Jacks Lake (Lassen National Forest); Lassen National Forest
1836
Comment
HSC63042
Prunus subcordata
J. P. Smith, J. O. Sawyer
1971-5-23
4662
Lassen
Along Hwy. 139, 15 mi. S of jct. with rd. to Thermo
Comment
CHSC7721
Prunus virginiana var. demissa
Beverley J. Wise
1969-5-18
192
Lassen
18.2 mi. East of Susanville on Las. Co. Rd. 216 off Las. Co. Rd. 215. On canyon wall.
1554
Comment
CAS-BOT-BC357282
Pseudognaphalium microcephalum
Margaret Williams
1974-7-27
74 -L-54
Lassen
Area near Hallelujah Junction, west of Hwy 395 and south of Hwy 70
1493
Comment
CAS-BOT-BC239805
Pseudoroegneria spicata
David D. Keck
1944-7-8
5450
Lassen
1.5 mi. W. of Susanville on rime of plateau overlooking Susan River Canyon
1341
Comment
UC60834
Pseudoroegneria spicata subsp. spicata
J. Burtt Davy
Jun 17 1897-Jun 24 1897
Lassen
Honey Lake Valley, Amedee Amedee; Honey Lake Valley, Amedee
Comment
JEPS48629
Pseudostellaria jamesiana
Hilda W. Grinnell
1934-6-1
Lassen
top of divide 8 mi sw Susanville
1950
Comment
UC1136876
Pseudostellaria jamesiana
L. R. Short and Wm. Gansberg
1936-6-16
S- 438
Lassen
Burgess Spring Experimental Range; Lassen Forest
1883
Comment
CHSC110907
Psilocarphus brevissimus var. brevissimus
Lowell Ahart; John Dittes
2012-7-9
18290
Lassen
Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. About 100 yards southeast of the tall poles.
1267
Comment
CHSC30610
Psilocarphus brevissimus var. brevissimus
L. Maslin
1975-7-1
5
Lassen
Lower Dry Lake.
1828
Comment
JEPS120861
Psilocarphus brevissimus var. brevissimus
Lowell Ahart, John Dittes, Todd Sloat
2013-6-8
18756
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
UCD55279
Psilocarphus oregonus
Ellen Dean
2006-5-15
3094
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.
1245
Comment
POM203965
Psoralidium lanceolatum
J. T. Howell
1934-6-10
11860
Lassen
Doyle
Comment
HSC93745
Pterospora andromedea
Gordon Leppig, Sylvia Leppig, Juli Neander, Kai Neander
1998-8-18
1059
Lassen
Blue Lake Campground, Modoc National Forest.
1860
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
RSA32005
Pterospora andromedea
A. A. Heller
1938-7-28
15302
Lassen
About 2 miles E of Westwood
1524
Comment
HSC68918
Pterospora andromedea
Gary Schoolcraft
1980-7-28
339
Lassen
N of Clark's Valley
2073
Comment
CAS-BOT-BC239792
Puccinellia distans
G. Schoolcraft
1993-6-1
2270
Lassen
Coyote Spring
1463
Comment
SEINET200160
Puccinellia distans
Malcolm A. Nobs, S. Galen Smith
1949-7-22
1070
Lassen
Northeast shore of Eagle Lake.
Comment
UCD91859
Puccinellia distans
Malcolm A. Nobs; S. Galen Smith
1949-7-22
1070
Lassen
NE shore of Eagle Lake.
Comment
POM313139
Puccinellia distans
Malcolm A. Nobs, S. Galen Smith
1949-7-22
1070
Lassen
Northeast shore of Eagle Lake
Comment
CHSC112789
Puccinellia lemmonii
Lowell Ahart; John Dittes, Todd Sloat
2013-6-9
18788
Lassen
Depression, 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.
1007
Comment
CHSC13644
Purshia tridentata
M. S. Taylor
1974-6-25
260
Lassen
Surrounding meadow, ca. 2 mi e of Gallatin Beach, ca. 1/2 mi s of Eagle Lake, ca. 13 mi nw of Susanville.
1524
Comment
CHSC23564
Purshia tridentata
W. O. Baum
1971-6-28
42
Lassen
Along fire trail on e slope of Gallatin Peak.
1920
Comment
UCD113288
Purshia tridentata
G. L. Webster
1989-5-13
7715
Lassen
2.5 miles E of Beckworth Pass.
1493
Comment
HSC19587
Purshia tridentata var. tridentata
J. J. Wagoner
1965-5-1
50
Lassen
22 mi. N of Susanville on Hwy. 395
Comment
HSC25758
Purshia tridentata var. tridentata
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19293
Lassen
Along Hwy. 395, 4 mi. E of Standish
Comment
JEPS44640
Purshia tridentata var. tridentata
Frank W. Peirson
1932-7-20
10355
Lassen
20 mi se Susanville
Comment
UC764040
Purshia tridentata var. tridentata
R. F. Hoover
1940-9-21
4605
Lassen
4 mi w Susanville
Comment
RSA0080608
Pyrola dentata
Marcus E. Jones
1897-6-28
s.n.
Lassen
Diamond Mountain. Susanville. Perkin's Ranch.
1829
Comment
UC1523749
Pyrola picta
Gary Schoolcraft
1981-7-7
497
Lassen
n of Landon Lookout
1981
Comment
CAS-BOT-BC362156
Pyrrocoma apargioides
Margaret Williams
1974-7-27
74 -L-65
Lassen
Near Hallelujah Junction, west of Hwy 395 and south of Hwy 70
1493
Comment
UC1981730
Pyrrocoma carthamoides var. cusickii
Debra Valov
2010-7-17
2010101
Lassen
Bieber, Lassen Co. CA., off County Rd A2 c. 8.7 km east of Hwy 299; open area in sagebrush scrub.
Comment
UCR163275
Pyrrocoma hirta
Jim Andre
1993-6-29
1408
Lassen
Madeline Plains about 2 miles south of Madeline along Hwy 395
1616
Comment
UC469065
Pyrrocoma hirta var. hirta
Franklin P. Nutting
Lassen
Dixey Valley , Northern California
Comment
UC1584018
Pyrrocoma hirta var. lanulosa
G. Schoolcraft
1990-8-1
2119
Lassen
about 1 mi s Heath Reservoir
1737
Comment
CDA18269
Pyrrocoma racemosa var. paniculata
G. D. Barbe
1974-8-2
1934
Lassen
Long Valley; Hallelujah Junction, northwest corner of jct of US Hwy 395 and Hwy 70.
1524
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
JEPS37795
Quercus kelloggii
W. L. Jepson
1939-8-11
19371
Lassen
Milford
1280
Comment
UCD46640
Quercus kelloggii
Annie M. Alexander; Louise Kellogg
1946-8-14
5158
Lassen
On hill back of town. Susanville.
Comment
CHSC6244
Ranunculus alismifolius var. hartwegii
R. Gein
1946-6-11
Lassen
Eagle Lake.
1580
Comment
CHSC23755
Ranunculus aquatilis var. capillaceus
M. S. Taylor
1974-7-10
282
Lassen
In creek in meadow, ca. 1/2 mi e of Gallatin Beach, ca. 1/2 mi s of Eagle Lake, ca. 12 mi nw of Susanville.
1524
Comment
POM172668
Ranunculus aquatilis var. capillaceus
Franklin Nutting
1894-7-25
s.n.
Lassen
Eagle Lake
Comment
UC1101365
Ranunculus aquatilis var. capillaceus
Verne Grant and Irving Schneider
1947-7-30
8197
Lassen
Tule Lake; w end
Comment
UC9368
Ranunculus aquatilis var. capillaceus
M. S. Baker and Frank Nutting
1894-7-25
Lassen
Eagle Lake
1524
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
JEPS77523
Ranunculus aquatilis var. hispidulus
L. R. Heckard, T. I. Chuang and R. Bacigalupi
1978-7-20
4893
Lassen
junction of Blue Lake turn-off with Likely-Patterson Guard Station road; Warner Mts.
1889
Comment
CHSC4806
Ranunculus aquatilis var. subrigidus
R. Carter
1967-7-13
589
Lassen
In Willow Creek, ca. 5 mi E of Eagle Lake Biology Station at point where Rd. comes nearest to Willow Creek.
1560
Comment
RSA0011455
Ranunculus cymbalaria subsp. saximontanus
Robert F. Thorne, Larry E. DeBuhr
1975-8-22
46982
Lassen
Along Highway 395 ca. 6 miles north of Madeline and 4.5 miles south of Modoc county line.
1616
Comment
CDA24319
Ranunculus cymbalaria var. saximontanus
T. C. Fuller
1980-8-6
20317
Lassen
North of Smoke Creek Ranch Road, 2 km west of the state line, 28.75 km (18.5 miles) northeast of Highway 395, northeast of Ravendale.
0
Comment
CHSC75526
Ranunculus cymbalaria var. saximontanus
Vernon H. Oswald; Lowell Ahart
1999-6-9
9757
Lassen
Northeast of Susanville and 4.1 mi south of Biscar Wildlife Management Area on BLM 26030 at the water crossing on Secret Creek.
1347
Comment
UC9428
Ranunculus cymbalaria var. saximontanus
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3332
Lassen
Honey Lake Valley
1219
Comment
UC1537331
Ranunculus cymbalaria var. saximontanus
Gordon H. True Jr.
1936-6-26
544
Lassen
Honey Lake Valley-Willow Creek Valley Road
1524
Comment
CHSC60612
Ranunculus flammula var. ovalis
Mary Ann Showers
1992-6-13
2549
Lassen
Lassen Volcanic National Park. Shoreline at western end of Widow Lake.
2072
Comment
CHSC55400
Ranunculus glaberrimus
Charlie Crannell
1991-4-21
16
Lassen
South end of Lassen County youth camp property bordering Eagle Lake Field Station; 200 ft from Eagle Lake.
1560
Comment
CHSC67295
Ranunculus glaberrimus
James D. Jokerst
1991-5-29
3313
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
UC1136880
Ranunculus glaberrimus
L. R. Short
1936-4-28
S- 338
Lassen
Burgess Spr. Exp. Range Lassen National Forest
1737
Comment
UC1951076
Ranunculus glaberrimus var. glaberrimus
Debra Valov
2009-4-25
2009015
Lassen
Bieber; property on south side of County A2 c. 5.4 mi east of Hwy 299
Comment
RSA715670
Ranunculus occidentalis
L. Ahart, John Dittes
2005-6-1
11857
Lassen
On the east side of the poor dirt road, about 1/2 mile west of Scott Road, Long Valley, about 2 air miles northwest of the intersection of Scott Road and Highway 70, 3.9 air miles northwest of Hallelujah Junction.
1449
Comment
UC1126216
Ranunculus occidentalis
A. Simontacchi
1940-6-13
850
Lassen
3.3 mi wsw Patterson Mtn.; Lassen National Forest, Halls Flat Quadrangle
Comment
RSA74352
Ranunculus occidentalis var. ultramontanus
Milo S. Baker
1952-5-23
12409
Lassen
Along Hwy 36, betw Pluster and Fredownyer Pass.
Comment
CDA24358
Ranunculus testiculatus
Robin Breckenridge
2007-5-1
PDR# 1349824 C
Lassen
Wendel.
0
Comment
HSC69599
Ranunculus testiculatus
Gary Schoolcraft
1980-4-25
Lassen
Susanville
1311
Comment
CAS-BOT-BC362886
Ratibida columnifera
John Thomas Howell
1974-7-9
50486
Lassen
SW. of Wildcat Point, Eagle Lake
1554
Comment
RSA0115086
Ribes aureum var. aureum
Lowell A. Ahart, John Dittes
2008-6-20
14950
Lassen
About 300 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
CAS-BOT-BC93388
Ribes cereum
Barbara Shervanick
1974-5-8
1272
Lassen
Eagle Lake Road, on the west side of Eagle Lake, about 18 miles north of SR 36. Eagle Lake drainage area. Cascades.
1584
Comment
JEPS94487
Ribes cereum var. cereum
Vernon H. Oswald and Lowell Ahart
1997-5-27
8515
Lassen
2.6 mi ne of Highway 139 (Williams Reservoir on Forest Route 38N04, between Highway 139 near Willow Creek Guard Station and Coyote Flat); Williams Reservoir on Forest Route 38N04
1682
Comment
CAS-BOT-BC169007
Ribes hudsonianum
L. S. Smith
1918-8-13
1033
Lassen
Lost Lake, Silver Creek, Modoc National Forest
2286
Comment
CHSC7761
Ribes roezlii
Beverly J. Wise
1969-5-17
99
Lassen
16.5 mi. N. W. of Susanville on the west side of Gallatin Creek, 1/4 mi. south of Eagle Lake.
1554
Comment
CAS-BOT-BC186149
Ribes roezlii var. roezlii
George W. Gillett
1957-7-26
917
Lassen
Butte Lake
1844
Comment
SEINET177615
Ribes velutinum
M. E. Jones
1897-6-25
s.n.
Lassen
Susanville
1341
Comment
CAS-BOT-BC363009
Rigiopappus leptocladus
G. Schoolcraft
1989-6-7
1905
Lassen
Lower NE slope of Shaffer Mtn.
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
JEPS117586
Rigiopappus leptocladus
Lowell Ahart, John Dittes
2010-7-31
16980
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
OBI48617
Rigiopappus leptocladus
Lewis S. Rose
1940-6-11
40507
Lassen
8 mi W of Nubieber
1219
Comment
RSA431533
Rorippa curvisiliqua
Rockwell
s.n.
Lassen
Eagle Lake.
Comment
CHSC75479
Rorippa curvisiliqua var. curvisiliqua
Vernon H. Oswald; Lowell Ahart
1999-6-9
9758
Lassen
Between Westwood and Susanville on Hwy 36 1.3 mi east of Fredonyer Pass. On a meadow adjacent to the highway.
1645
Comment
CHSC66861
Rorippa curvisiliqua var. orientalis
Vernon H. Oswald; Lowell Ahart
1996-9-10
8282
Lassen
Mountain Meadows Reservoir SW of Westwood. On the embankment of the railroad along the northwest edge of the reservoir.
1539
Comment
CHSC71385
Rorippa curvisiliqua var. orientalis
V. Oswald; B. Corbin, M. Dolan, V. Sanger, G. Schoolcraft
1998-7-13
9260
Lassen
Moll Reservoir in Ash Valley southeast of Adin. Along the edge of the reservoir.
1615
Comment
JEPS127167
Rorippa palustris subsp. palustris
Lowell Ahart, John Dittes
2016-7-15
21218
Lassen
Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
Comment
NY182185
Rorippa sinuata
G. Schoolcraft
1983-6-28
1025
Lassen
1341.1
Comment
CHSC13947
Rorippa sphaerocarpa
M. S. Taylor
1974-7-8
265
Lassen
On bank of levee, ca. 1 mi n of Honey Lake, ca. 1 mi s of Standish, Honey Lake Wildlife Refuge.
Comment
RSA716339
Rosa californica
L. Ahart, J. Dittes
2005-6-2
11944
Lassen
1.5 miles NE of the Anderson Ranch home, Long Valley, 6 miles (air) N of intersection of Scott Road and Hwy 70, 7.5 miles (air) NW of Hallelujah Jct.
1602
Comment
CDA26287
Rosa woodsii var. ultramontana
Gordon Leppig, T. LaBlanca
1998-7-13
874
Lassen
Modoc National Forest. Blue Lake Ranch.
Comment
UC1137304
Rosa woodsii var. ultramontana
L. R. Short and Wm. Gansberg
1936-7-9
S- 484
Lassen
Burgess Spring Experiment Range Lassen <National> Forest
1795
Comment
SEINET11908696
Rubus parviflorus
J. Detzer, Sacks
1977-1
11
Lassen
ca 2.5 mi SE of Milford, 300 yds E of Laufman Ranger Station, 5 ft E of unimproved USFS road
1372
Comment
SEINET10479394
Rumex acetosella
Jeffrey Huber
1971-6-11
Huber 319
Lassen
3 mi E of Westwood, on CA Hwy 36; in volcanic soils (basalt), in Pinus jeffreyi.
1608
Comment
SEINET4199964
Rumex crispus
M. J. Williams
1974-7-29
74 -L-64
Lassen
2 mi. West of Hallelujah Junction, south of Hwy. 70
Comment
JEPS121295
Rumex fueginus
Lowell Ahart
2013-7-22
18849
Lassen
W margin of duck field, about 30 yards S of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley.
Comment
CHSC66730
Rumex occidentalis
Vernon H. Oswald; Lowell Ahart
1996-8-1
8117
Lassen
N shore of the Hamilton Branch of the N. Fork of the Feather River ca. 0.1 mi downstream from Indian Ole Dam on Mountain Meadows Reservoir, SW of Westwood.
1524
Comment
UC1542940
Rumex paucifolius
G. Schoolcraft
1987-4-29
1689
Lassen
Ash Valley RNA Ash Valley
1554
Comment
UCR163274
Rumex salicifolius
Jim Andre
1993-6-29
1409
Lassen
Madeline Plains about 2 miles south of Madeline along Hwy 395
1616
Comment
UC1745691
Rumex salicifolius var. lacustris
Annetta M. Carter
1945-9-30
1718
Lassen
Sam Webb place near end of Eagle Lake.
1554
Comment
UC526136
Rumex salicifolius var. lacustris
John Thomas Howell
1934-7-8
12486
Lassen
Spalding's Eagle Lake
Comment
UC6951
Rumex salicifolius var. lacustris
M. S. Baker and Frank Nutting
1894-7-30
Lassen
Silver Lake
Comment
UC452556
Rumex salicifolius var. salicifolius
Milo S. Baker
Lassen
n side Dixie Mt.
Comment
UC6962
Rumex salicifolius var. salicifolius
M. S. Baker and F. Nutting
1894-7-1
Lassen
Dixie Mts.
Comment
CAS-BOT-BC434263
Rumex triangulivalvis
Annie M. Alexander; Louise Kellogg
1946-8-11
5153
Lassen
Northwest end Grasshopper Valley.
Comment
SEINET8584738
Rumex venosus
W. Harnach
2011-6-4
1247
Lassen
NE slope of Turtle Mtn., Fort Sage Mtns., Honey Lake Valley, approx. 7.5 miles NE of Doyle, CA on the Fort Sage Road.
1329
Comment
UCD101656
Rumex venosus
R. N. Raynor
1939-5-31
s.n.
Lassen
Milford, Honey Lake Valley.
Comment
SEINET4176403
Rumex venosus
P. B. Kennedy
1901-6-10
s.n.
Lassen
R.R. Station, Constantia
Comment
CHSC5006
Sagittaria cuneata
L. G. Bennett
1968-7-8
124
Lassen
Murrers Meadow, north end, near Eagle Lake.
1493
Comment
UC1609489
Sagittaria cuneata
Vernon H. Oswald and Lowell Ahart
1993-8-3
5753
Lassen
n edge Cooper Swamp Cooper Swamp (e of Silver Lake just e of the Caribou Wilderness, ca 13 mi (air) n of Lake Almanor); e of Caribou Wilderness, , e of Silver La
1932
Comment
UC803885
Sagittaria cuneata
G. L. Stebbins Jr.
1949-8-6
4004
Lassen
edge Feather Lake (betw. Susanville and McArthur); edge of Feather Lake
1676
Comment
CAS-BOT-BC132697
Salix
John Thomas Howell
1976-7-20
52017
Lassen
Bottom flats along Willard Creek near its confluene with Susan River, about 5 miles west of Fredonyer Pass
1432
Comment
CHSC58514
Salix boothii
Vernon H. Oswald
1992-7-3
5048
Lassen
Trail from Juniper L. to Snag L., on the W edge of Cameron Meadow.
1950
Comment
POM106762
Salix eastwoodiae
Marcus E. Jones
1897-6-28
s.n.
Lassen
Top of Diamond Mt., Susanville, Perkin's Ranch.
2226
Comment
CAS-BOT-BC108056
Salix exigua
P. Monnet
1919-7-1
823
Lassen
Hot Springs Peak
91
Comment
SEINET10682433
Salix exigua
Karen M. Meyer, Andrew Townesmith
2007-7-19
Meyer 137
Lassen
Lassen National Forest. Ca. 0.2 mi. on 29N03, off Hwy. 36 on pullout just past a dry creek.
1459
Comment
CAS-BOT-BC107958
Salix geyeriana
John Thomas Howell
1976-7-20
s.n.
Lassen
Bottom flats along Willard Creek near its confluence with Susan River, about 5 miles west of Fredonyer Pass - Sierra Nevada
1432
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
CHSC58515
Salix jepsonii
Vernon Oswald
1992-7-3
5056
Lassen
Grassy Creek between Horseshoe and Snag lakes, ca. 0.3 mi NE of the trail to Cameron Meadow. Lassen Volcanic Park.
1950
Comment
JEPS107798
Salix jepsonii
Lowell Ahart, John Dittes
2005-6-2
11947
Lassen
Long Valley, along a small stream, about 1 1/2 miles (air) northeast of the Anderson Ranch home, about 6 miles (air) north of the intersection of Scott Road and Highway 70, 7.5 miles (air) northwest of Hallelujah Junction
1601
Comment
CHSC13668
Salix lemmonii
E. L. Smith
1971-4-28
946 A
Lassen
On Dry Creek at Clear Creek Junction.
1493
Comment
CAS-BOT-BC129525
Salix melanopsis
G. Schoolcraft
1999-7-6
2853
Lassen
Along Susan River near Devil's Corral Trailhead
1402
Comment
CHSC71874
Salsola tragus
Vernon H. Oswald; Lowell Ahart
1998-9-8
9582
Lassen
Ash Creek and Big Swamp 2.2 mi north of Bieber on County Road 91 (Bieber-Lookout Rd.).
1258
Comment
JEPS95904
Salsola tragus
Lowell Ahart and Vernon H. Oswald
1999-9-13
8205
Lassen
on the east side of the dirt road and 1/2 mile south of the sign in station; Honey Lake Wildlife Area; 4 1/2 miles (air) southeast of Standish
1207
Comment
SEINET7976568
Salvia dorrii
M. J. Williams, A. Tiehm, J. Nachlinger
1988-1
88- 27 -1
Lassen
Hwy 395 0.4 mile east of Susanville road after turn to Alturas.
Comment
UCLA27615
Salvia dorrii var. dorrii
Mrs. H. C. Cantelow
1941-5-22
Lassen
2.5 mi n Secret Valley (C.C.C. Camp on U.S. Hwy 395 to Alturas from Quincy)
Comment
CHSC5226
Sambucus melanocarpa
A. Santos
1946-6-17
Lassen
E side of Eagle Lake.
1615
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
JEPS85836
Sambucus racemosa var. microbotrys
Barbara Ertter
1988-7-25
7873
Lassen
ridge of mts. ca 1.5 mi e Diamond Peak (ca 10 air mi s of Susanville); Diamond Mts.
2255
Comment
POM90118
Sanguisorba annua
Marcus E. Jones
1897-6-26
s.n.
Lassen
Susanville, Perkin's Ranch.
1463
Comment
CAS-BOT-BC110335
Sarcobatus vermiculatus
John Thomas Howell
1975-7-23
51414
Lassen
Sierra Nevada. On Highway 395 about 5 miles southeast of Doyle.
1310
Comment
CAS-BOT-BC110337
Sarcobatus vermiculatus
John Thomas Howell
1934-6-10
11897
Lassen
Horse Lake.
Comment
CHSC30601
Sarcobatus vermiculatus
L. J. Dawson
1975-7-7
44
Lassen
Ca. 500 yd e of Horselake.
1584
Comment
NY540267
Sarcobatus vermiculatus
J. T. Howell
1975-7-23
51414
Lassen
Alkaline flat on Highway 395 about 5 miles southeast of Doyle
1310.6
Comment
UCSB61641
Sarcobatus vermiculatus
True, Gordon
1936-6-21
Lassen
Honey Lake Valley
1219
Comment
CHSC4972
Sarcodes sanguinea
R. Carter
1967-6-22
536
Lassen
ca 1/4 mi S of Five Corners on Peans Ridge Road.
1584
Comment Read comments Jan 31 2011
CHSC6239
Sarcodes sanguinea
Sam Webb
1946-6-8
Lassen
Roop Mountain, Eagle Lake.
2133
Comment
UC70391
Sarcodes sanguinea
Milo S. Baker
1890-4
Lassen
Honey Lake Valley
Comment
JEPS1765
Saxifraga nidifica var. nidifica
Milo S. Baker
1952-5-23
12422
Lassen
e of Chester (Hwy 36)
Comment
CAS-BOT-BC283086
Schedonorus arundinaceus
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49474
Lassen
Elysian Valley west of Janesville, Sierra Nevada
1325
Comment
UCD65649
Schedonorus arundinaceus
John Thomas Howell; Gordon H. True and Margaret Williams
1973-6-28
49474
Lassen
Sierra Nevada. Elysian Valley west of Janesville.
1325
Comment
UC1567432
Schoenoplectus acutus var. occidentalis
G. Schoolcraft
1989-7-31
1998
Lassen
along A27 about 8 mi e Susanville; e of Susanville
1243
Comment
CAS-BOT-BC111303
Schoenoplectus acutus var. occidentalis
John Thomas Howell
1975-7-23
51406
Lassen
Wet grounds along Hwy. 395 between Johnstonville and Jonesville
Comment
POM123064
Schoenoplectus maritimus
Marcus E. Jones
1897-6-24
s.n.
Lassen
10 to 15 miles west from Amedee.
1219
Comment
CAS-BOT-BC111215
Scirpus
John Thomas Howell
1976-7-19
51967
Lassen
Transition forest on Gold Run Creek southwest of Susanville
1386
Comment
JEPS95894
Scirpus nevadensis
Lowell Ahart
1999-9-13
8228
Lassen
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
UC1100818
Scirpus pungens
Malcolm A. Nobs, S. Galen Smith
1949-8-20
1485
Lassen
1 mi n Doyle (marshy banks of Long Creek, Honey Lake Valley); Honey Lake Valley
Comment
JEPS88199
Scribneria bolanderi
Vernon H. Oswald and Lowell Ahart
1996-6-17
7804
Lassen
ca. 7 mi. w. Susanville (Bizz Johnson Trail accessed at Devils Corral Trailhead located off Hwy. 36, n. side of trail between Devils Corral Trailhead and the 6.0 mi. post); Modoc Plateau, Bizz Johnson Trail
1420
Comment
CHSC7755
Scrophularia californica
Beverley J. Wise
1969-5-18
110
Lassen
18.2 mi. N. E. of Susanville on Las. Co. Rd. 216 off Las. Co. Rd. 215. North sidewall of Willow Creek Canyon.
1463
Comment
CAS-BOT-BC214265
Scutellaria nana
Clarence R. Quick
1966-7-22
66 -50
Lassen
Susanville-Pittville Road, Blacks Mtn. Hdqts., Halls Flat, 9 m. e. of Hat CreekRocky campgd.
1706
Comment
CAS-BOT-BC214267
Scutellaria nana
Peter H. Raven; Otto T. Solbrig
1958-6-17
13270
Lassen
Along United States Highway 395, 19.0 miles south of Ravendale
Comment
CAS-BOT-BC214269
Scutellaria nana
John Thomas Howell
1934-6-10
11879
Lassen
12 miles n. of Susanville on road to Horse Lake
Comment
RSA719468
Scutellaria nana
L. P. Janeway
2005-4-7
84614
Lassen
High Cascade Range. Ridge top north above Long Valley; 0.4 km west of Road 34N41.
534
Comment
SBBG125002
Scutellaria nana
C. B. Hardham
-Jun-2000
Lassen
Gold Run Crk, S of Susanville
Comment
SEINET13947826
Scutellaria nana
Clarence R. Quick
1964-1
64 -92
Lassen
Cal Mt. E of Poison Lake; ca 5800 ft alt.
1768
Comment
CAS-BOT-BC240086
Secale cereale
David D. Keck; J. Clausen
1935-6-24
3750
Lassen
2 mi. S. of Ravendale
1464
Comment
CDA2409
Secale cereale
T. C. Fuller
1969-5-22
18481
Lassen
Northeast corner of Rair Drive & Main Street, Susanville.
0
Comment
CHSC64815
Secale cereale
Vernon H. Oswald
1995-6-7
6831
Lassen
Modoc Plateau. Wendel Rd. (Lassen 320) at milepost 9.0, 3.6 mi e of Wendel, ne of Susanville.
1231
Comment
SEINET10517203
Secale cereale
Douglas G. LeDoux, David B. Dunn
1973-5-25
LeDoux 887
Lassen
Collected 3 mi N of Milford. On Hwy 395 at Honey Lake Campgrounds.
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
HSC95295
Senecio hydrophilus
Gordon Leppig, J. Cromwell
1997-7-27
615
Lassen
Modoc National Forest, Blue Lake Ranch.
1970
Comment
CHSC30613
Senecio integerrimus
L. Maslin
1975-7-1
10
Lassen
At the foothill of n Black Mtn. near Eagle Lake Field Station.
1981
Comment
HSC28835
Senecio integerrimus
D. H. Norris, T. Nelson, S. Dowty
1971-6-22
19263
Lassen
In Harvey Valley near Cone Springs
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
CHSC60723
Senecio integerrimus var. exaltatus
Vernon H. Oswald; Lowell Ahart
1993-6-3
5480
Lassen
Champs Flat Rd. (Lassen 105, 32N28Y), where it diverges from Lassen 21 (32N02) to Eagle Lake, on the S side of Pine Creek Valley, between Poison Lake and Susanville. Meadow.
1725
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
JEPS100319
Senecio spartioides
Dean W. Taylor
2001-7-12
17830
Lassen
Diamond Mountains, headwaters of Rhodes Creek, along Forest Road 24N02X
1996
Comment
CHSC100133
Shepherdia argentea
L. P. Janeway
2008-8-2
9526
Lassen
Modoc Plateau. Just above the flats along the south side of Rush Creek; south side of Smokey Creek Tanch Road 1.8 km west of the CA-NV line.
1349
Comment
JEPS67272
Sidalcea oregana subsp. spicata
Brown and Wieslander
1922-7-18
65
Lassen
Martin Sprs , Martin Sprs (Eagle Lake)
Comment
CAS-BOT-BC384312
Silene bernardina
Clarence R. Quick
1966-7-22
66 -52
Lassen
Susanville-Pittville road, Blacks Mtn. Hdqts.; Halls Flat, 9 m. e. of Hat Creek
1706
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
RSA123272
Silene bernardina
L. R. Short, D. Gish
1936-7-15
S- 487
Lassen
MDM, Burgess Spr. Exp. Range; Forest: Lassen.
1744
Comment
CHSC57274
Silene bridgesii
Mary Meyer
1980-7-24
Lassen
West of rocky outcrop at sharp bend in the Lookout Road.
2255
Comment Read comments Aug 11 2014
CHSC31752
Silene douglasii
Wayne O. Baum
1971-7-6
71 -52
Lassen
N.E. slope of Gallatin Peak.
2072
Comment
SD113389
Silene douglasii
Darley F. Howe
1964-8-2
3917
Lassen
East Creek, Warner Mountains, Modoc National Forest.
2010
Comment
CHSC54863
Silene invisa
Vernon H. Oswald
1991-8-23
4844
Lassen
Lassen Volcanic National Park. Trail from Juniper Lake Campground to the outlet of Juniper Lake, just west of the former.
2060
Comment
CAS-BOT-BC389554
Silene nuda
Elmer I. Applegate
1923-9-30
4035
Lassen
Constantia, Honey Lake Valley
Comment
JEPS123843
Silene nuda
Lowell Ahart, John Dittes
2015-7-14
20334
Lassen
About 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
Comment
UC1553400
Silene nuda
G. Schoolcraft
1988-7-7
1818
Lassen
ca 1 mi s Horne Ranch (se corners of Madeline Plains); , s of Horne Ranch
1645
Comment
RSA0045631
Sisymbrium orientale
Lowell A. Ahart, John Dittes
2008-6-20
14900
Lassen
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
CHSC66274
Sisyrinchium bellum
Vernon H. Oswald; Lowell Ahart
1996-6-24
7875 .1
Lassen
Modoc Plateau. Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake. Bordering Papoose Creek where it leaves the N end of the meadow.
1633
Comment
RSA0035823
Sisyrinchium bellum
Lowell A. Ahart, John Dittes
2008-6-20
14964
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 miles (air) northeast of Bieber.
1263
Comment
CHSC7183
Sisyrinchium douglasii
Lynn R. Thomas
1969-4-18
103
Lassen
On bluff directly behind Lassen Memorial Hospital (area of old city dump), Susanville. (USGS 'Susanville')
1341
Comment
CDA38566
Sium suave
F. A. Taylor
1933-7-5
s.n.
Lassen
Bieber.
0
Comment
JEPS117479
Solanum sarrachoides
Lowell Ahart, John Dittes
2010-8-31
17138
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
UC1542917
Solanum triflorum
G. Schoolcraft
1987-9-1
1774
Lassen
Ash Valley, along Ash Valley road Ash Valley
1548
Comment
HSC21315
Solanum triflorum
D. E. Anderson
1962-8-6
2331
Lassen
Lake at foot of Tule Mtn.
Comment
UCD136093
Solidago velutina subsp. californica
G. Schoolcraft
1994-8-29
2426
Lassen
about 1 mile west of Susanville up Piute Creek.
1341
Comment
CAS-BOT-BC158899
Sorbus scopulina
John Thomas Howell; Gordon H. True
1973-8-1
50151
Lassen
Gold Run Creek Road south of Susanville, Diamond Range - Sierra Nevada
1584
Comment
CAS-BOT-BC390560
Spergularia rubra
John Thomas Howell; Gordon H. True
1973-8-1
50245
Lassen
Headwaters of Baxter Creek, east slope of Diamond Range south of Susanville
2133
Comment
JEPS103181
Sphaeromeria potentilloides var. potentilloides
G. Schoolcraft
2000-6-19
2905
Lassen
Flat SE of Ravendale BLM Fire Station
1645
Comment
CHSC61074
Spiranthes porrifolia
Vernon H. Oswald
1993-8-3
5754
Lassen
Cooper Swamp located E of Siver Lake just E of the Caribou Wilderness, ca. 13 mi (air) N of Lake Almanor.
1932
Comment
UC1037284
Spiranthes romanzoffiana
Leo Whitney
1934-7-21
1710
Lassen
Harvey Valley Spring Lassen National Forest, Harvey Valley (ca 14 mi w of Eagle Lake)
1737
Comment
SEINET3818362
Spiranthes romanzoffiana
A. A. Heller
1938-1
Lassen
Comment
JEPS63054
Stachys ajugoides var. rigida
Brown and Wieslander
ca. 1914
57
Lassen
near Eagle Lake; Martin Sprs.
Comment
UC1137688
Stachys ajugoides var. rigida
L. R. Short and Wm. Gansberg
1936-7-9
S- 485
Lassen
Burgess Spr. Exp. Range Lassen Forest
1795
Comment
UC773921
Stachys ajugoides var. rigida
L. R. Short and Wm. Gansberg
1936-7-9
S- 485
Lassen
Burgess Spring Experiment Range Lassen Forest
1795
Comment
UC1567417
Stanleya pinnata
G. Schoolcraft
1989-5-31
1880
Lassen
near intersection Skedaddle Ranch and Wendel Roads; nr intersection Skedaddle Ranch and Wendel Roads
1249
Comment
SEINET11604939
Stanleya viridiflora
L. Bass
1982-7-25
10 -82
Lassen
Near Karlo, ca 12 miles N of Litchfield.
1356
Comment
HSC4289
Stellaria longipes
M. T. Milligan
1964-7-16
139
Lassen
2 mi. N on the Silver Lake Rd., along Upper Susan River.
1829
Comment
UCD99328
Stellaria longipes subsp. longipes
Ratliff
1966-7-8
1
Lassen
Harvey Valley Allot. - Plot 49.
1706
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
CAS-BOT-BC375066
Stephanomeria
Gordon H. True
1973-8-22
7657
Lassen
North shore of Honey Lake ca. 5 miles east of Janesville & just west of Hartson Reservoir
1219
Comment
JEPS17401
Stephanomeria exigua subsp. exigua
Rimo Bacigalupi and G. T. Robbins
1955-7-21
5425
Lassen
In drainage of Rush Creek, S of the Smoke Creek Ranch Road, 1.3 mi E of the Nevada State line and 17.5 mi E of U.S. Highway 395.
1341
Comment
POM147898
Stephanomeria lactucina
J. B. Feudge
1927-7-20
1781
Lassen
Westwood.
Comment
SEINET10524630
Stipa comata var. comata
Douglas G. LeDoux, David B. Dunn
1973-5-25
LeDoux 884
Lassen
Coll 3 mi N of Milford, on Hwy 395 at Honey Lake campgrounds.
Comment
HSC22318
Stipa nelsonii subsp. dorei
D. E. Anderson
1969-7-5
4992
Lassen
Freedonyer Pass, 15 mi. W of Susanville
1752
Comment
UCR119160
Stipa thurberiana
Beecher Crampton
1964-6-27
7095
Lassen
Modoc Plateau, 5 miles southwest of Ravendale.
1707
Comment
NY215290
Streptanthus cordatus
D. B. Dunn
1971-6-2
17787
Lassen
6 mi N of Hallelujah Jct. on U.S. Hwy 395.
1402.1
Comment
SEINET10448889
Streptanthus cordatus
Billy Joe Cox
1971-6-2
Cox 2992
Lassen
6 mi. N. Of hallelujah jct on us 395, in artemesia tridentata, pinyon pine, jeffrey pine along high ridge & in sandy wash.
1402
Comment
CAS-BOT-BC61289
Streptanthus cordatus var. cordatus
Alice Eastwood; John Thomas Howell
1940-6-15
8309
Lassen
Willow Creek near Hayden Hill.
Comment
UC7242
Suaeda calceoliformis
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3350
Lassen
Honey Lake Valley
Comment
UC7234
Suaeda moquinii
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3397
Lassen
Amedee Honey Lake Valley
Comment
RSA18164
Symphoricarpos acutus
C. B. Wolf
1929-9-1
3781
Lassen
Mt. Lassen Nat'l Park, between Grassy Lake and Snag Lake.
Comment
CDA42242
Symphoricarpos rotundifolius var. rotundifolius
Gordon Leppig, T. LaBanca
1998-7-13
964
Lassen
Modoc National Forest. Blue Lake Ranch.
Comment
UCD136510
Symphyotrichum ascendens
Verne Grant; Irving Schneider
1947-9-6
8391
Lassen
west of Fleming Ranch Headquarters, near Wendel.
Comment
CHSC72216
Symphyotrichum campestre
Vernon H. Oswald
1998-9-14
9623
Lassen
Windy Hollow on the west side of Hwy. 44 ca. 1 mi northwest of its intersection with A21 (to Westwood).
1737
Comment
CAS-BOT-BC98930
Symphyotrichum foliaceum var. parryi
B. C. Cain
1925-8-24
111
Lassen
1 mi. below Drakesbad, Mt. Lassen Nat. Park
1645
Comment
CAS-BOT-BC98934
Symphyotrichum foliaceum var. parryi
Alice Eastwood
1912-8-22
1917
Lassen
Battle Creek Meadows - Lassen Butte Region
Comment
CAS-BOT-BC98541
Symphyotrichum spathulatum
B. C. Cain
1925-8-24
82
Lassen
1 mi. below Drakesbad, Mt. Lassen Nat. Park
1645
Comment
UCD18966
Symphyotrichum spathulatum
Raymond D. Ratliff
1965-8-5
46
Lassen
Lassen National Forest, Gooch Valley Allotment, Mosquito Flat (Gooch V. 70-1).
1889
Comment
UCD136663
Symphyotrichum spathulatum var. yosemitanum
Barbara L. Wilson; R. Brainerd, D. Lytjen, et al.
2004-8-24
11184
Lassen
Snowstorm Creek, at a spring; upstream of Biscar Reservoir, west of an old railroad right of way.
1463
Comment
CAS-BOT-BC376848
Taraxacum
John Thomas Howell
1934-6-14
12139
Lassen
Near Lost Lake, Warner Mts.
2438
Comment
CHSC23557
Taraxacum officinale
W. O. Baum
1971-6-6
33
Lassen
E slope of Gallatin Peak in fire trail.
1920
Comment
CHSC68753
Taraxia subacaulis
Vernon H. Oswald; Lowell Ahart
1997-5-27
8521
Lassen
Small impoundment on Coyote Flat Draw crossing Forest Route 38N04 (between Hwy. 139 near Willow Creek Guard Station and Coyote Flat), 3.6 mi northeast of Hwy. 139.
1731
Comment
CHSC36454
Taraxia tanacetifolia
Susan H. Euing
1982-6-6
8
Lassen
Pine Creek below fish trap.
Comment
CHSC36480
Taraxia tanacetifolia
Margaret E. Halloran
1982-6-6
9
Lassen
Pine Creek just below fish trap where Pine Crek empties into Eagle Lake.
Comment
CHSC59758
Taraxia tanacetifolia
Mary Meyer; Teresa Prendusi
1980-5-8
Lassen
In meadows by creek in Balls Canyon.
1219
Comment
JEPS94547
Taraxia tanacetifolia
Vernon Oswald and Lowell Ahart
1997-6-24
8623
Lassen
s of Susanville (on n side of Diamond Mountain on Forest Road 21N52, 1.0 mi sw of its junction with 29N43); Diamond Mountain, Forest Road 21N52
2164
Comment
UC1368460
Taraxia tanacetifolia
R. K. Gierisch
1969-7-18
3550
Lassen
near Modoc <National Forest>; Madeline Plains
Comment
UC1537604
Taraxia tanacetifolia
Gordon H. True Jr.
1936-6-26
543
Lassen
Honey Lake-Willow Creek Valley Road
1493
Comment
CAS-BOT-BC329045
Tetradymia canescens
Elmer I. Applegate
1897-6-4
851
Lassen
Madeline Plains
Comment
CAS-BOT-BC329049
Tetradymia canescens
John Thomas Howell
1961-9-25
36972
Lassen
East side of Beckwourth Pass
1554
Comment
CDA18263
Tetradymia canescens
G. D. Barbe
1974-8-2
1925
Lassen
Long Valley; Hallelujah Junction, northwest corner of jct of US Hwy 395 and Hwy 70.
1524
Comment
SEINET9324830
Tetradymia canescens
Unknown
1974-8-20
1925
Lassen
Survey w/ state and county personnel, Hallelujah Jct, NW corner of jct of US 395 and Hwy 70. USGS quad: Chilcoot 15' Plant Systematics Lab/Herbarium CDA, California Dept. of Food & Agric
Comment
UC1136972
Tetradymia canescens
George A. Fischer and Irwin H. Johnson
1933-8-26
F 279
Lassen
n border Grass Valley; Lassen Forest
1676
Comment
CDA36353
Tetradymia glabrata
B. Villegas
2011-8-25
Lassen
Hallelujah Junction, west-northwest of intersection of Highway 395 and Route 70.
Comment
CAS-BOT-BC392358
Thalictrum fendleri
John Thomas Howell
1934-6-14
12118
Lassen
Near Lost Lake, Warner Mts.
2438
Comment
UC9719
Thalictrum sparsiflorum
M. S. Baker and Frank Nutting
1894-7-12
Lassen
Pine Creek
Comment
CAS-BOT-BC88053
Thelypodium crispum
John Thomas Howell
1934-6-10
11859
Lassen
3 miles north of Omira.
Comment
JEPS54071
Thelypodium crispum
W. L. Jepson
1918-8-2
7756
Lassen
Beckwith Pass
1463
Comment
RSA294538
Thelypodium flexuosum
A. Tiehm
1980-5-29
5745
Lassen
North end of Honey Lake Valley, just N of Hot Springs 1.1 air mile NNW of Wendel.
1232
Comment
UC1479578
Thelypodium flexuosum
Gary Schoolcraft
1980-5-16
233
Lassen
e. side Honey Lake (n.e. of Amedee Hot Springs)
1219
Comment
CAS-BOT-BC88083
Thelypodium flexuosum
William Anderson
1963-5-13
s.n.
Lassen
Dakin unit, Honey Lake Valley.
Comment
RSA285952
Thelypodium integrifolium subsp. complanatum
T. C. Fuller
1980-9-4
20336
Lassen
0.3 km S of the Smoke Creek Ranch Road, 2 km W of the state line, Rush Creek drainage.
Comment
CAS-BOT-BC88133
Thelypodium milleflorum
Ella Dales Cantelow
1941-5-22
3633
Lassen
3.5 miles south of Secret Valley C.C.C. Camp. U.S. Highway 395 to Alturas from Susanville.
Comment
CAS-BOT-BC193470
Thinopyrum ponticum
R. E. Frenkel
1964-10-1
867
Lassen
On Highway A-2, 6.0 miles east of junction with Hwy. 299, south-east of Bieber
1280
Comment
RSA170330
Thinopyrum ponticum
T. C. Fuller
1963-7-15
10887
Lassen
s. of road to Little Valley, 2.9 mi. s.e. of Pittville
Comment
UCD54538
Thinopyrum ponticum
Ellen Dean; Petra Unger, Dawn Cunningham
2005-10-10
2723
Lassen
E. of town of Susanville, along C.R. A27 (Center Rd.) Grounds of California Correctional Facility. Sewage treatment plant area.
1247
Comment
CHSC14173
Thlaspi arvense
K. R. Stern; D. B. Joley, J. G. Geschke
1974-6-23
5838
Lassen
Ca. 1 mi se of Ravendale on w side of Hwy. 395.
1618
Comment
CHSC91200
Thlaspi arvense
Lowell Ahart; John Dittes
2005-6-1
11912
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
CAS-BOT-BC88165
Thysanocarpus curvipes
C. L. Hitchcock
1940-5-26
6598
Lassen
Ca. 12 miles north of Fall River Mills. (Shasta county) on Fall River.
1371
Comment
POM260174
Thysanocarpus curvipes var. curvipes
C. L. Hitchcock
1940-5-26
6598
Lassen
Lava beds ca 12 miles north of Fall River Mills (Shasta Co.) on Fall River.
1372
Comment
POM72574
Tiquilia nuttallii
Marcus E. Jones
1897-6-22
s.n.
Lassen
10 miles south of Amedee. [Lassen or Plumas Co.?]
1220
Comment
HSC95217
Torreyochloa pallida var. pauciflora
Gordon Leppig, J. Cromwell
1997-7-26
597
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
HSC95288
Torreyochloa pallida var. pauciflora
Gordon Leppig, Juli Neander, Kai Neander
1997-7-26
689
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
CHSC77260
Toxicoscordion venenosum var. venenosum
G. Schoolcraft
1993-6-1
2269
Lassen
Coyote Spring e. of Three Springs on 5 Spring Mtn.
1524
Comment
JEPS117497
Tragopogon dubius
Lowell Ahart, John Dittes
2010-7-31
16998
Lassen
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
HSC93311
Triantha occidentalis subsp. occidentalis
Vernon H. Oswald, L. Ahart
1996-8-1
8122
Lassen
USFS Rd. 28N56 2 mi. N of Dyer Mtn. Lookout, SSW of Westwood
1738
Comment
JEPS127266
Trichostema oblongum
Lowell Ahart, John Dittes
2016-7-13
21122
Lassen
80 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.
Comment
JEPS17721
Trichostema oblongum
Rimo Bacigalupi with G. T. Robbins
1955-7-19
5374
Lassen
10.3 mi SE of Adin (along Ash Valley road betw. Adin and Madeline)
1524
Comment
UC1594617
Trichostema oblongum
Vernon H. Oswald and Lowell Ahart
1992-7-16
5127
Lassen
Bridge Creek Spring Rd (County Rd 112, Forest Rd. 31N06), 1.0 me[mi?] E of Willow Spring Rd (Forest Road 31N56), between Old Station and Susanville
1607
Comment
HSC97190
Trichostema simulatum
L. Ahart
2003-8-17
10514
Lassen
E side of Hwy. 36, 1/4 mi. SW of the Susan River, 8 air mi. SW of Susanville
1434
Comment
JEPS104447
Trichostema simulatum
Lowell Ahart
2003-8-17
10514
Lassen
On the w side of the paved road, on the e side of Highway 36, ca 1/4 mi sw of the Susan River, ca 8 mi (air) sw of Susanville.
1433
Comment
SBBG119831
Trichostema simulatum
L. Ahart
2003-8-17
10514
Lassen
E side of Hwy 36, ca. 0.25 air mi SW of the Susan River, ca. 8 air mi SW of Susanville
1433
Comment
JEPS33194
Trifolium andersonii var. andersonii
Milo S. Baker
July 1894
Lassen
near Bieber; Big Valley
Comment
UC165623
Trifolium breweri
Milo S. Baker
Lassen
Comment
CHSC99259
Trifolium cyathiferum
Lowell Ahart; John Dittes
2008-6-22
15025
Lassen
On the sides of a small drainage, on the west side of the levee, about 20 yards south of the tall poles, mountain meadow, in Big Valley, about 3.5 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber.
1260
Comment
NY717041
Trifolium fragiferum
J. T. Howell
1976-7-19
51944 -a
Lassen
Susanville
1297
Comment
UC16703
Trifolium kingii var. productum
M. S. Baker and Frank Nutting
1894-7-12
Lassen
Pine Creek
Comment
NY802652
Trifolium kingii var. productum
D. Isely
1971-7-12
11380
Lassen
Bogard Campground, Lassen National Forest, ca. 2 miles south state #44 (ca. 30 miles northwest of Susanville)
Comment
CHSC25903
Trifolium longipes subsp. hansenii
K. R. Stern
1967-6-25
2401
Lassen
Meadow on road to Eagle Lake Biological Station, ca. 7 mi. S of Eagle Lake.
1828
Comment
SBBG128881
Trifolium longipes subsp. shastense
L. Ahart
2008-6-20
14923
Lassen
ca. 100 yards SW of where the levee rd crosses Big Valley Canal, in Big Valley, ca. 4 mi (air) NE of Headquarters at Ash Crk State Wildlife Area, ca. 7 mi (air) NE of Bieber
1263
Comment
JEPS33189
Trifolium longipes var. hansenii
Brown and Wieslander
1922-7-30
59
Lassen
Martin Springs Eagle Lake
Comment
CHSC25313
Trifolium macrocephalum
Pauleen Broyles
1977-6-1
164
Lassen
In Spencer Basin, 8 km n of Herlong.
539
Comment
CDA28075
Trifolium wormskioldii
Gordon Leppig
1998-7-12
961
Lassen
Northern California Peatlands.; Modoc National Forest. Blue Lake Ranch.
Comment
UC1537084
Trifolium wormskioldii
Gordon H. True Jr.
1936-6-26
546
Lassen
Head of Willow Creek; e of Eagle Lake
1584
Comment
UC16719
Trifolium wormskioldii
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3347
Lassen
Honey Lake Valley
Comment
CHSC60928
Triglochin scilloides
Vernon H. Oswald; Lowell Ahart
1993-7-8
5645
Lassen
Pittville Rd. (Lassen 111, 36N01) near its intersection with 33N11, 0.4 mi N of Hwy. 44, near the SE end of Poison Lake. Beds of drainages and pools in meadow.
1709
Comment
CAS-BOT-BC199574
Trisetum canescens
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49437
Lassen
Elysian Valley, west of Janesville
1325
Comment
UCD149769
Trisetum wolfii
William Anderson
1965-8-7
s.n.
Lassen
Kings Creek Meadow.
Comment
CHSC5930
Triteleia hyacinthina
M. West
1946-6-13
Lassen
Pine Creek, Eagle Lake.
1584
Comment
SD131701
Triteleia hyacinthina
Arnold Tiehm, Jan Nachlinger, Margaret Williams
1988-6-2
11705
Lassen
East side of Snowstorm Mountain, 18.1 road miles north of the Wendel Road on Highway 395 from Susanville to Alturas. Growing along moist draws.
1402
Comment
CAS-BOT-BC521548
Triteleia hyacinthina
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49431
Lassen
Elysian Valley, west of Janesville
1325
Comment
CAS-BOT-BC522004
Triteleia hyacinthina
Alice Eastwood; John Thomas Howell
1940-6-11
7970
Lassen
Big Valley
Comment
CAS-BOT-BC73900
Turritis glabra
Ira L. Wiggins; R. C. Rollins
1945-8-3
542
Lassen
Lakeview Spring, 6.5 miles from Bridgeport. Sweetwater highway.
2438
Comment Read comments May 6 2018
SEINET7951785
Typha angustifolia
M. A. Nods, S. G. Smith
1949-8-20
1473
Lassen
N shore of lake 1 mi S of Milford, Honey Lake Valley
Comment
CHSC112844
Typha latifolia
Lowell Ahart; John Dittes
2013-7-23
18908
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
SEINET6194989
Typha latifolia
CLM Team
2014-7-29
NV 030 -983
Lassen
From Reno head north on 395, turn right onto Red Rock Rd. and proceed roughly 0.5-0.75 of a mile and park at dirt pull off on the right side of the road
1368
Comment
NY500467
Ulmus pumila
J. T. Howell
1978-4-20
52869
Lassen
Susanville
1296.9
Comment
UCD121864
Utricularia minor
Barry Rice
2009-7-5
BR 090705
Lassen
at Robbers Spring.
Comment
UCD121865
Utricularia minor
Barry Rice
2009-7-5
BR 090707
Lassen
in Cooper Swamp.
Comment
CAS-BOT-BC194022
Vaccinium cespitosum
M. S. Baker; Frank Nutting
1894-7-30
s.n.
Lassen
Silver Lake
Comment
SD7779
Vaccinium uliginosum
Mrs. R. M. Austin
1882-1
Lassen
Willow Lake
Comment
CHSC76748
Vaccinium uliginosum subsp. occidentale
L. P. Janeway
1999-9-5
6558
Lassen
High Cascade Range. Upper Pine Creek near Stephens Camp; northwest corner of Upper Stephens Meadow.
1900
Comment
CAS-BOT-BC530501
Veratrum californicum
Marguerite Harting
no dates on label
s.n.
Lassen
Bank of Hamilton Branch of Feather near Clear Creek Camp
Comment
CHSC5029
Veratrum californicum var. californicum
L. B. Barlow
1967-7-14
118
Lassen
5 mi. S. Silver Lake Rd., along Susan River, W. side Calif. State Highway 44.
1828
Comment
CDA6404
Verbascum virgatum
T. C. Fuller
1964-10-8
12705
Lassen
West side of Highway 395 between Ravendale & Standish, 1 mile south of Secret Valley.
0
Comment
SEINET9186959
Verbena bracteata
G. Schoolcraft
1998-8-4
2800
Lassen
Along Hwy 395 berm.
1341
Comment
UC1012181
Veronica americana
Francis W. Pennell
1940-6-10
25775
Lassen
3 mi e of Westwood (Route 36)
1584
Comment
UCD124650
Veronica americana
R. Clicquennoi
1967-6-24
46
Lassen
4 miles east of Eagle Lake Biology Station at Murrer's Upper Meadow.
1524
Comment
RSA719888
Veronica anagallis-aquatica
Michael A. Vincent, K. Levings
2006-7-29
12917
Lassen
Along Rt 395, 46.9 road miles SE of Johnstonville, 13.9 miles N of Sierra County line.
Comment
JEPS107379
Veronica arvensis
Lowell Ahart, John Dittes
2005-6-1
11903
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
JEPS114636
Veronica catenata
Lowell Ahart, John Dittes
2008-6-20
14932
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 7.0 miles (air) northeast of Bieber
1263
Comment
JEPS120875
Veronica peregrina subsp. xalapensis
Lowell Ahart, John Dittes, Todd Sloat
2013-6-8
18744
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
SEINET7367373
Vicia americana
C. G. Gulling
1905-1
1503
Lassen
Big Medows
Comment
CDA43004
Vicia americana var. americana
L. Ahart, John Dittes
2008-6-2
14936
Lassen
On the levee road, 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.
Comment Read comments Oct 5 2019
CHSC5295
Vicia americana var. americana
M. West
1946-6-13
Lassen
Pine Creek, Eagle Lake.
1584
Comment
JEPS107289
Vicia americana var. americana
Lowell Ahart, John Dittes
2005-6-1
11866
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
RSA716040
Vicia americana var. americana
L. Ahart
2005-6-1
11866
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
UC1731085
Vicia americana var. americana
Dean W. Taylor
1974-6-14
3709
Lassen
Poison Lake, on Hwy 44 ca. 2 miles W from the junction with Pittville Road
1615
Comment
UC921155
Viola adunca
Loyd Swift
1928-5-23
Lassen
Lassen National Forest
Comment
UC1121558
Viola beckwithii
A. Simontacchi
1940-5-17
731
Lassen
5.7 mi ssw of Patterson Mountain; Lassen National Forest
1706
Comment
UC1763464
Viola praemorsa subsp. linguifolia
Milo S. Baker and F. P. Nutting
Jul 1894
1894
Lassen
hills N of Dixie Mountains
Comment
POM85345
Viola purpurea subsp. venosa
Marcus E. Jones
1897-6-28
s.n.
Lassen
Top of Diamond Mt., Susanville, Perkin's Ranch.
2226
Comment
UCD143816
Vulpia myuros
Richard R. Halse
2011-3-20
8133
Lassen
Williams; by junction of 5th Street and B street.
24
Comment
JEPS107847
Vulpia myuros var. hirsuta
Lowell Ahart, John Dittes
2005-6-1
11914
Lassen
Long Valley, on the north side of Scott road, east side of the railroad underpass, about 4 3/4 miles (air) north of the interesection of Scott Road and Highway 70, 6.2 miles (air) northwest of Hallelujah Junction
1459
Comment
CAS-BOT-BC383487
Wyethia mollis
Clarence R. Quick
1961-6-21
61 -36
Lassen
Adjacent to Road 21, Blacks Mountain Experimental Forest northeast of Lassen Peak
1798
Comment
CHSC12491
Wyethia mollis
Carol Weld
1969-6-20
10
Lassen
Forest Service number 516.2
1676
Comment
SDSU13739
Wyethia mollis
D. F. Howe
1964-8-2
3922
Lassen
East Creek, Warner Mts., Modoc National Forest.
1981
Comment
UC1136971
Wyethia mollis
George A. Fischer and Irwin H. Johnson
1933-7-18
F 239
Lassen
Lassen National Forest
1737
Comment
UC1137288
Wyethia mollis
K. E. Bradshaw
1939-5-27
240
Lassen
n end of plot Lassen National Forest, Black Mountain E. F. Plot 39-1
1767
Comment
CAS-BOT-BC383489
Wyethia mollis
David D. Keck; J. Clausen
1935-6-25
3765
Lassen
2 mi. W. of Fredonia Pass, between Susanville and Westwood
1524
Comment
RSA302669
Wyethia mollis
J. R. Shevock
1972-5-20
1820
Lassen
Near Doyle, Hwy 395.
1220
Comment
SEINET10914998
Wyethia mollis
Jeffrey Huber
1971-6-2
Huber 109
Lassen
4 mi. S of Adin along Calif. Hwy. 139 in basalt-clay; valley floor in Artemisia.
1341
Comment
UCD62826
X Pseudelymus saxicola
G. L. Stebbins Jr.; J. A. Jenkins
1937-7-13
2341
Lassen
Ca. 3 mi. east of Champs.
2042
Comment
CAS-BOT-BC454211
Zannichellia palustris
Ira L. Wiggins; Dorothy B. Wiggins
1961-6-11
16348
Lassen
About 10 miles E. of Susanville
Comment
UC773858
Zigadenus paniculatus
L. R. Short and J. Warren
1936-6-12
S- 434
Lassen
Burgess Spring Experiment Range Lassen Forest, (Lassen National Forest?)
1844
Comment
CAS-BOT-BC533048
Zigadenus paniculatus
Doris Kildale Gillespie
1930-5-15
9384
Lassen
5 miles west of Susanville
Comment
SEINET3154464
Zigadenus venenosus
C. D. Marsh
1921-6-17
sn
Lassen
Doyle
Comment