Click on column header to sort data (* sorts by family); click in leftmost checkbox to select record. CCH Help Page .
Turn on yellow flags to show possible range discrepancies.
Read more ...
?
Specimen ID
Determination *
Collector
Collection Date
Collection Number
County
Locality
Elevation in meters
Feedback
CDA465
Abies concolor
Mark Lubinski
2000-10-12
PDR# 1103214
Lassen
5 mi. W of Susanville by Hwy. 44.
Comment
CHSC13794
Abies magnifica
Cathy Crittenden
1970-7-9
39
Lassen
2 1/2 miles east of Antelope Mtn. lookout on road to Eagle Lake Resort.
1981
Comment
UC1196917
Abies magnifica var. magnifica
A. W. and M. Kildale
1926-9-1
2725
Lassen
11 mi n Chester; Lassen National Park, Juniper Lakes
2054
Comment
CAS-BOT-BC330610
Acer glabrum var. glabrum
Clare B. Hardham
1969-8-28
17438
Lassen
Sierra Nevada. West of Janesville.
Comment
JEPS94537
Acer glabrum var. torreyi
Vernon Oswald and Lowell Ahart
1997-6-24
8607
Lassen
0.7 mi e of boundary of Lassen National Forest (s of Susanville, on n side of Diamond Mountain, along Forest Road 29N43, 5.4 mi e of Gold Run Road); Diamond Mountain, Forest Road 29N43
1889
Comment
CAS-BOT-BC331637
Acer macrophyllum
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49449
Lassen
Elysian Valley, west of Janesville
1325
Comment
CAS-BOT-BC28647
Achillea millefolium
John Thomas Howell
1976-7-19
51958
Lassen
SW of Susanville on Gold Run Road
1341
Comment
CHSC13640
Achillea millefolium
M. S. Taylor
1974-7-10
286
Lassen
Abundant in meadow ca. 1/2 mi s of Eagle Lake, ca. 2 mi e of Gallatin Beach, ca. 13 mi nw of Susanville.
1524
Comment
CHSC23526
Achillea millefolium
Wayne O. Baum
1971-7-20
71 -53
Lassen
N. slope of Gallatin Peak.
2011
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
CAS-BOT-BC28649
Achillea millefolium
Lassen 1927 G. S. Crew
1927-7-15
78
Lassen
Lassen County
1725
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-BC260404
Achnatherum hymenoides
L. P. Janeway
1990-7-4
3769
Lassen
Near E side of saddle ca 0.8 mile NE of Meadowview Peak
1981
Comment
UC1131588
Achnatherum hymenoides
E. Sawyer
1935-6-27
232
Lassen
Long Valley Sierraville Quadrangle
Comment
CAS-BOT-BC210660
Achnatherum lemmonii
John Thomas Howell
1973-7-10
49774
Lassen
Fredonyer Pass
1737
Comment
SEINET249775
Achnatherum lemmonii
Beecher Crampton
1954-7-5
2054
Lassen
4.5 miles west of Susanville, along state highway 36.
1433
Comment
UCD50597
Achnatherum lemmonii
Beecher Crampton
1954-7-5
2054
Lassen
Along Hwy. 36, 4.5 miles west of Susanville.
1432
Comment
CAS-BOT-BC110708
Achnatherum nevadense
G. Schoolcraft
1997-6-26
2600
Lassen
Large knob between Milford and Janesville.
1676
Comment
CAS-BOT-BC216848
Achnatherum occidentale
Clarence R. Quick
1961-6-21
61 -31
Lassen
Adjacent to Road 21, Blacks Mountain Experimental Forest NE of Lassen Peak
1798
Comment
SEINET7593424
Achnatherum occidentale
John Thomas Howell
1934-1
12431
Lassen
Hall's Flat
Comment
CHSC109530
Achnatherum occidentale subsp. californicum
B. Castro; L. P. Janeway
2003-10-5
1459
Lassen
High Cascade Range. Caribou Wilderness Area; ca 3 mi SW of Bogard Buttes and 1 mi E of Black Butte, along trail between Cone Lake and Triangle Lake, ca 0.8 mi S of Cone Lake and end of USFS Rd 32N09A.
2103
Comment
RSA129521
Achnatherum occidentale subsp. californicum
L. R. Short, Wm Gansberg
1936-6-2
S- 366
Lassen
MDM, Burgess Spr. Exp. Range
1859
Comment
UC1143047
Achnatherum occidentale subsp. californicum
L. R. Short and W. Gansberg
1936-6-2
S- 3666
Lassen
Burgess Spring Experimental Range Lassen National Forest
1858
Comment
UCD51042
Achnatherum occidentale subsp. californicum
L. Whitney
1935-6-23
3296
Lassen
Camp 10, Fruit Grower's Supply Company, Lassen National Forest.
Comment
UC717977
Achnatherum occidentale subsp. occidentale
David D. Keck
1944-7-8
5451
Lassen
1.5 mi w Susanville (rim of plateau overlooking Susan River canyon); Sierra Nevada, Susan River
1341
Comment
CAS-BOT-BC218616
Achnatherum occidentale subsp. pubescens
Margaret Williams; Steven Williams
1974-7-26
74 -L-37
Lassen
Burned area near Hallelujah Junction, west of Hwy 395 and south of Hwy 70, Sierra Nevada
1493
Comment
UC1024910
Achnatherum occidentale subsp. pubescens
Leo Whitney
3372 a
Lassen
ca. 13 mi w of upper end of Eagle Lake (Ashurt Mountain); Ashurt Mountain
Comment
UCD51194
Achnatherum occidentale subsp. pubescens
L. Whitney
1935-6-24
s.n.
Lassen
Squaw Valley.
Comment
CHSC29880
Achnatherum thurberianum
Robin L. Ondricek
1978-6-8
47
Lassen
Ridge E of Lower Dry Lake.
1798
Comment
UC593456
Achnatherum thurberianum
E. B. Babcock, G. L. Stebbins Jr.
1936-6-7
1744
Lassen
gully on mountain above Red Rock
1420
Comment
UC769950
Achnatherum webberi
R. F. Hoover
1940-9-29
4647
Lassen
pass between Shaffer Mt. and Warren Peak
Comment
SEINET5327496
Acmispon americanus var. americanus
G. Schoolcraft
1995-6-27
2501
Lassen
Cherry Creek
1524
Comment
CHSC99296
Acmispon denticulatus
Lowell Ahart; John Dittes
2008-6-20
14970
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 miles (air) northeast of Bieber.
1263
Comment
CAS-BOT-BC412863
Aconogonon davisiae
Ray Hanson
1954-8-23
s.n.
Lassen
Lassen Park: near Jakey Lake
2112
Comment
CAS-BOT-BC418769
Aconogonon phytolaccifolium
Alice Eastwood
1912-8-22
1878
Lassen
Morgans Springs [Morgans Hot Springs, el. 5000 ft.], Lassen Butte Region
Comment
CAS-BOT-BC391590
Actaea
Clare B. Hardham
1969-8-28
17451
Lassen
Slope west of Janesville
Comment
SEINET11261375
Agastache parvifolia
Robert L. Johnson, Mikel R. Stevens
2015-7-10
3929
Lassen
5.6 rd miles west of jct with Hwy 395 beginning on Dawn Dr, then continuing on road to summit of Shaffer Mountain. Ca 16 air mi ene of downtown Susanville.; 0
1910
Comment
CAS-BOT-BC30236
Ageratina occidentalis
Hans Leschke
1959-8-8
1634
Lassen
Between Bumpas Hell and Cold Boiling Lake
2407
Comment
UC468890
Agoseris X dasycarpa
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3405
Lassen
Chat Long Valley
Comment
CHSC7649
Agoseris aurantiaca
Beverly J. Wise
1969-5-18
10
Lassen
Alongside Susan River.
1615
Comment
CHSC91811
Agoseris glauca
G. Douglas Barbe
1974-8-20
1922
Lassen
Upper Lond Valley. Hallelujah Junction, northwest corner of jct. of US Hwy 395 and Hwy 70.
1524
Comment
CHSC59071
Agoseris glauca var. monticola
Vernon Oswald; Lowell Ahart
1992-8-25
5181
Lassen
Lassen Volcanic National Park. Near Grassy Creek at the S end of Snag Lake, at the junction of Snag Lake-Butte Lake and Snag Lake-Horseshoe Lake trails.
1865
Comment
JEPS103193
Agoseris grandiflora
G. Schoolcraft
2000-6-19
2904
Lassen
West of Cold Spring Valley
1706
Comment
UC29394
Agoseris grandiflora var. grandiflora
M. S. Baker and Frank Nutting
1894-7-2
Lassen
Dixie Mt. Dixie Mt.
Comment
JEPS94999
Agoseris heterophylla
Vernon Oswald and Lowell Ahart
1997-6-24
8601
Lassen
s of Susanville (on n side of Diamond Mountain at a stream on Forest Road 29N43, 3.5 mi e of Gold Run Road); Diamond Mountain, Forest Road 29N43
1655
Comment
SEINET6738695
Agoseris heterophylla
M. J. Williams, G. Schoolcraft, A. Tiehm
1986-5-12
80- 19 -1
Lassen
Smoke Creek Rd., 0.1 mile E of Hwy 395
1372
Comment
POM318656
Agoseris heterophylla var. heterophylla
Patricia Wilder
1971-6-20
5053
Lassen
About 6 miles southeast of Adin on Adin - Madelaine Road; Modoc National Forest; Cascades mountain range, Cascade River drainage area
1768
Comment
UCD107495
Agoseris monticola
Tim Kuhn
2006-7-18
41
Lassen
Eagle Lake Ranger District..
Comment
CAS-BOT-BC13230
Agoseris monticola
Margaret Williams
1974-8-4
74 -L-79
Lassen
Near Hallelujah Junction, west of Hwy 395 and south of Hwy 70.
1493
Comment
CAS-BOT-BC13231
Agoseris monticola
G. D. Hanna
1958-9-22
s.n.
Lassen
Road from Caribou Lake to Cone Lake
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
UC1776674
Agoseris parviflora
G. Schoolcraft
1994-7-7
2365
Lassen
About 1 miles west of Boot Lake
219
Comment
CHSC111270
Agropyron cristatum subsp. pectinatum
L. P. Janeway; B. Castro
2012-7-3
10942
Lassen
Modoc Plateau. Near top of Shaffer Mountain, southeast-facing slope, steep and very rocky with lots of outcrops of hard dark vol-canic rock.
2012
Comment
SEINET12950845
Agrositanion saundersii
B. L. Wilson, D. Lytjen, N. Otting
2005-7-29
11518
Lassen
Smith Flat on Cedar Creek, 6 or 7 miles E of Madeline, N of County Road 510; Blue Door Flat.; 41.08261 -120.34968
1692
Comment
UC1130661
Agrostis alba
H. S. Yates
1936-8-11
6060
Lassen
near Red Rock; Susanville Quad.
Comment
CAS-BOT-BC127238
Agrostis exarata
Malcom A. Nobs; S. Galen Smith
1949-7-21
1057
Lassen
4 miles north of Madeline.
Comment
HSC95196
Agrostis exarata
Gordon Leppig, J. Cromwell
1997-7-27
628
Lassen
Modoc National Forest, Blue Lake Ranch.
1970
Comment
UC1100103
Agrostis exarata
Malcolm A. Nobs, S. Galen Smith
1949-7-21
1057
Lassen
4 mi n Madeline
Comment
UC53515
Agrostis exarata
M. S. Baker and Frank Nutting
1894-7-6
Lassen
Dixie Valley
Comment
CAS-BOT-BC139675
Agrostis gigantea
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49484
Lassen
Sierra Nevada. Elysian Valley, west of Janesville.
1325
Comment
CAS-BOT-BC139679
Agrostis gigantea
John Thomas Howell
1976-7-19
51975
Lassen
Sierra Nevada. On Gold Run Creek southwest of Susanville.
1386
Comment
CAS-BOT-BC139450
Agrostis hyemalis
Leo Whitney
1933-8-4
2228
Lassen
Meadow near Sheepshead.
1889
Comment
CAS-BOT-BC139292
Agrostis idahoensis
G. Schoolcraft
1994-8-1
2383
Lassen
About 2 miles west of Boot Lake.
2255
Comment
UCD53299
Agrostis scabra
L. Whitney
1933-8-15
s.n.
Lassen
Meadow near Sheepshead.
Comment
SEINET4342189
Agrostis stolonifera
B. L. Wilson, D. Lytjen
2005-7-25
11489
Lassen
Deep Creek, near confluence with a smaller stream
1359
Comment
CHSC77261
Agrostis variabilis
G. Schoolcraft
1997-8-6
2662
Lassen
Dimond Mtn.
2316
Comment
CHSC117273
Alisma triviale
Lowell Ahart; John Dittes
2016-7-15
21221
Lassen
About 50 yards west of the road and about 400 yards south of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
JEPS119644
Alisma triviale
Lowell Ahart, John Dittes
2012-7-9
18294
Lassen
Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
Comment
CAS-BOT-BC131926
Allium
Mike Vasey
1990-6-30
9060
Lassen
Ash Valley, along primitive road south of junction of Ash Valley Road and Spooner Road, Modoc National Forest
1500
Comment
CHSC29895
Allium acuminatum
Robin L. Ondricek
1978-7-22
105
Lassen
One mi s of Colley Point Overlook on Hwy 139.
1670
Comment
CAS-BOT-BC459567
Allium acuminatum
H. C. Cantelow
1940-5-31
3898
Lassen
East of Mc Arthur
Comment
UCD150395
Allium acuminatum
Harry A. George
1967-6-14
s.n.
Lassen
Hartson Reservoir.
Comment
SD6424
Allium anceps
Mrs. R. M. Austin
1879-1
Lassen
No further location information given on label.
Comment
SEINET10899656
Allium anceps
Billy Joe Cox, David B. Dunn
1971-6-2
Cox 2572
Lassen
3 miles s of hallelujah jct., On u.s. Hwy. 395, Jct. Of u.s. 395 & Calif. 70; Along roadside and in artemesia - grassland field
Comment
UCD55152
Allium bisceptrum
Ellen Dean
2006-5-15
3040
Lassen
E of town of Susanville. Along C.R. A27 (Center Rd.) Grounds of California Correctional Facility.
1245
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
UC1136928
Allium lemmonii
L. R. Short
1936-6-10
S- 416
Lassen
Burgess Spr. Exp. Range Lassen Forest, Burgess Spr. Exp. Range
1798
Comment
UC843374
Allium lemmonii
C. L. Hitchcock
1940-5-26
6640
Lassen
overflow of Pitt River 1 mi w Bieber; Pitt River
Comment
HSC47288
Allium lemmonii
Dale McNeal
1978-5-30
2129
Lassen
Beside Hwy. 395, 1.9 mi. S of Ravendale
Comment
HSC67118
Allium lemmonii
Dale McNeal
1980-6-1
2338
Lassen
Beside Hwy. 139, 32.4 mi. S of junction with Hwy. 299 in Adin
Comment
POM260464
Allium lemmonii
C. L. Hitchcock
1940-5-26
6640
Lassen
Overflow of Pitt River, 1 mile W of Bieber
Comment
SEINET3885788
Allium lemmonii
D. W. McNeal
1978-5-30
2129
Lassen
Beside Highway #395, 1.9 mi. South of Ravendale.; 0
Comment
CHSC7662
Allium parvum
Beverley J. Wise
1969-4-10
139
Lassen
2.5 mi. south of Susanville on Las. Co. Rd. 204.
1310
Comment
CAS-BOT-BC474049
Allium parvum
G. Schoolcraft
1998-4-27
2704
Lassen
N. end of Ft. Sage Mtn
1859
Comment
CAS-BOT-BC474073
Allium platycaule
H. D. Ripley; R. C. Barneby
1943-6-14
5733
Lassen
Fredonyer Pass
1676
Comment
JEPS107805
Alnus incana subsp. tenuifolia
Lowell Ahart, John Dittes
2005-6-2
11945
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
HSC63950
Alopecurus aequalis
Teresa Prendusi
1980-7-9
1115
Lassen
Horse Camp Spring, approximately 39 mi. N of spring
1707
Comment
UC1567403
Alopecurus aequalis
G. Schoolcraft
1989-7-18
1976
Lassen
s. of Clark's Valley Rd. near Buck's Spring
1572
Comment
UC790958
Alopecurus aequalis
A. A. Beetle
1941-6-28
2795
Lassen
10 mi. w. Chester (Rte. 36)
Comment
CHSC108017
Alopecurus geniculatus
Lowell Ahart; John Dittes
2011-6-20
17504
Lassen
In the small stream, about 80 yards south 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
CHSC71228
Alyssum minus subsp. micranthum
Vernon H. Oswald; Lowell Ahart
1998-6-4
9144
Lassen
Spur road on north side of Red Rock Rd. 0.6 mi east of Hwy. 395, south of Constantia. At the parking area at the end of the spur road.
1389
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
UCD54542
Amaranthus californicus
Ellen Dean; Petra Unger, Dawn Cunningham
2005-10-10
2727
Lassen
E. of town of Susanville. Private property N of California Correctional Facility.
1248
Comment
RSA252462
Ambrosia acanthicarpa
R. F. Thorne, C. W. Tilforth
1969-9-6
39266
Lassen
C. 0.7 mi. SE of Milford, along Hwy. 395 (W. of Honey Lake).
1280
Comment
SEINET3391171
Amelanchier alnifolia
E. D. McArthur
1982-1
EDM- 1360
Lassen
NW of Janesville at Jct of Co Ros 205 & 219
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
RSA38464
Amelanchier pallida
Philip A. Munz
1947-5-20
11886
Lassen
Laufman Forestry Public Camp Ground, above Milford.
1524
Comment
JEPS28676
Amelanchier utahensis
George W. Gillett
1957-7-26
903
Lassen
Butte Lake Lassen Volcanic National Park (point of rocks w of outlet and above trail)
1844
Comment
CAS-BOT-BC142538
Amelanchier utahensis
Philip A. Munz
1947-5-20
11886
Lassen
Laufman Forestry Public Camp Ground, above Milford
1524
Comment
JEPS107822
Amphiscirpus nevadensis
Lowell Ahart, John Dittes
2005-6-2
11975
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
CAS-BOT-BC222255
Amsinckia
John Thomas Howell
1934-6-10
11870
Lassen
Honey Lake Valley, 24 miles s. of Susanville
Comment
CHSC91325
Amsinckia intermedia
Lowell Ahart; John Dittes
2005-6-1
11878
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
JEPS61105
Amsinckia menziesii var. menziesii
W. L. Jepson
1918-8-2
7777
Lassen
Beckwith Pass
1463
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
CHSC92825
Amsinckia tessellata var. tessellata
Lowell Ahart; John Dittes
2005-6-1
11881
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
JEPS94122
Amsinckia tessellata var. tessellata
Vernon H. Oswald and Lowell Ahart
1998-5-22
9091
Lassen
Hwy. 395 at an intermittent drainage crossing the rd. 2.3 mi. s. Milford
1255
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
CAS-BOT-BC15606
Ancistrocarphus filagineus
Alice Eastwood; J. T. Howell
1940-6-16
8354
Lassen
Constantia
Comment
CHSC36438
Antennaria argentea
Dave Leuck
1981-6-13
16
Lassen
N. E. side of Galletin Peak.
1706
Comment
POM39125
Antennaria argentea
Marcus E. Jones
1897-6-25
s.n.
Lassen
Susanville.
1341
Comment
UC773954
Antennaria argentea
L. R. Short and Wm. Gansberg
1936-6-10
S- 414
Lassen
Burgess Spr. Exp. Range
1856
Comment
CAS-BOT-BC26644
Antennaria argentea subsp. aberrans
Marcus E. Jones
1897-6-18
s.n.
Lassen
Chat
1524
Comment
CHSC108021
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
CHSC54170
Antennaria dimorpha
Vernon H. Oswald
1991-5-28
4624
Lassen
Wayman Barn at the west end of Hunt Rd, Ash Creek Wildlife Area, ca. 5 miles northeast of Bieber.
1264
Comment
CHSC91298
Antennaria dimorpha
Lowell Ahart; John Dittes
2005-6-1
11915
Lassen
On the east side of a poor road, Long Valley, about 4 1/2 miles (air) north of the intersection of Scott Road and Highway 70, 6.0 miles (air) northwest of Hallelujah Junction.
1425
Comment
JEPS107971
Antennaria dimorpha
Lowell Ahart, John Dittes
2005-6-1
11915
Lassen
On the east side of a poor road, Long Valley, about 4 1/2 miles (air) north of the intersection of Scott Road and Highway 70, 6.0 miles (air) northwest of Hallelujah Junction
1425
Comment
UC1137751
Antennaria dimorpha
L. R. Short
1936-6-8
S- 386
Lassen
Burgess Spr. Exp. Range Lassen National Forest, Burgess Spr. Exp. Range
1743
Comment
UCD128922
Antennaria flagellaris
G. Schoolcraft
1981-5-27
0456
Lassen
Hayden Hill.
1737
Comment
CHSC92677
Antennaria geyeri
L. P. Janeway; B. Castro
2005-7-10
8478
Lassen
Northern High Sierra Nevada. Crest of the Diamond Mountains overlooking Janesville and the north end of Honey Lake; 0.2 km north of Road 28N01 and 0.6 km east of junction of Janesville Grade Road (Road 208 and 28N02) and Road 28N01. Northerly-facing side of the crest.
1859
Comment
JEPS100336
Antennaria geyeri
Dean W. Taylor
2001-7-19
17842
Lassen
Diamond Mountains, ridgecrest ca. 1 air mile South of Doyle Grade
2072
Comment
HSC97018
Antennaria luzuloides
L. Ahart, John Dittes
2005-6-1
11862
Lassen
1/2 mile west of Scott Rd., Long Valley, about 2 air miles NW of the intersection of Scott Rd. and Hwy. 70. 3.9 air miles NW of Hallelujah Junction
1449
Comment
UC773953
Antennaria luzuloides
L. R. Short and J. Warren
1936-6-23
S- 452
Lassen
Burgess Spring Experiment Range Lassen National Forest, Burgess Spring Experiment Range
1741
Comment
CAS-BOT-BC77284
Antennaria microphylla
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49414
Lassen
Elysian Valley, west of Janesville
1325
Comment
SBBG63415
Antennaria rosea
S. W. Hutchinson, M. N. Ackley
-Jun-1925
214
Lassen
Eagle Lake
1554
Comment
JEPS95747
Anthemis cotula
Vernon H. Oswald and L. Ahart
1995-8-14
7175
Lassen
T30N R15E center NE1/4 Sec. 3, 4425 ft, Modoc Plateau, Sagebrush Scrub, alkaline clay soil. Hwy. 395 at the N end of a flooded playa (Mud Flat) 3.4 mi N of Smoke Creek Ranch Rd., N of Susanville. Roadside weed.
1348
Comment
UC1035982
Apocynum androsaemifolium
Helen K. Sharsmith
1955-6-27
4516
Lassen
adjacent to Hwy. 89 n. of Hat Creek Ranger Station; Lassen Nat'l Forest
1158
Comment
CHSC30563
Aquilegia formosa
Sori H. Shad
1970-6-26
3
Lassen
Found in Murrer, S upper Meadow in a silty soil.
1584
Comment
POM99591
Aquilegia formosa
Marcus E. Jones
1897-6-28
s.n.
Lassen
Diamond Mountain; Susanville; Perkin's Ranch.
1829
Comment
CHSC12479
Aquilegia formosa var. truncata
Carol Weld
1969-6-25
25
Lassen
Murrer's Meadow.
1524
Comment
CHSC4273
Aquilegia formosa var. truncata
K. R. Stern
1967-6-24
2404
Lassen
Murrer Meadow, ca. 3 mi. SE of Eagle Lake Biological Station.
1554
Comment
SEINET5337698
Aquilegia formosa var. truncata
C. G. Gulling
1905-1
1544
Lassen
Big Meadows
Comment
SEINET10480742
Arabis drummondii
Jeffrey Huber
1971-6-2
Huber 125
Lassen
Ca 30 mi n of susanville, on state hwy 139, in basatl. Pinus-artemesia-juniper Association.
1646
Comment
NY112494
Arabis holboellii var. pinetorum
R. C. Rollins
1981-5-30
81164
Lassen
Gold Run Road, 9 miles S of Susanville
Comment
SEINET3899870
Arabis holboellii var. retrofracta
Reed C. Rollins, Kathryn W. Rollins
1981-5-31
81177
Lassen
Just north of Eagle Lake.; 0
Comment
UC10185
Arabis holboellii var. retrofracta
M. S. Baker and Frank Nutting
1894-7-9
Lassen
Pine Creek
Comment
CAS-BOT-BC407749
Arceuthobium abietinum
Brighton C. Cain
1925-8-24
114
Lassen
Mt. Lassen Volcanic National Park, 1 mile below Drakesbad
1645
Comment
SEINET1916077
Arceuthobium abietinum
R. L. Mathiasen
2010-1
1061
Lassen
0.3 km W of Fredonyer Pass on Rte. 36; On Abies Iowiana
1660
Comment
SEINET2471253
Arceuthobium abietinum
R. L. Mathiasen
2008-9-26
2008 -68
Lassen
16.5 km S. of N. entrance to Lassen Nat. Park on State Rte. 89
1940
Comment
RSA38477
Arctostaphylos manzanita subsp. manzanita
P. A. Munz
1947-5-18
11865
Lassen
Fredonyer Forestry Public Camp Ground, west of Susanville.
1509
Comment
CAS-BOT-BC45893
Arctostaphylos nevadensis
A. H. Kramer
1929-1-1
s.n
Lassen
Prospect Peak
Comment
UCD53307
Arctostaphylos patula
Beecher Crampton
1964-1-26
7080
Lassen
Ca. 35 miles NW of Susanville.
2042
Comment
CHSC36979
Arenaria 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
UCR18731
Arenaria congesta
Frank C. Vasek
1975-7-11
750711- 07
Lassen
Modoc Plateau, State Hwy 139, [Said Valley] 2 mi north of Grasshopper Valley at the junction with Termo Rd.
1650
Comment
UC465892
Arenaria congesta var. congesta
Franklin P. Nutting
Lassen
Silver Lake
Comment
JEPS100348
Arenaria kingii var. glabrescens
Dean W. Taylor
2001-6-28
17816
Lassen
Diamond Mountains, Crystal Peak, along ridgeline at the summit
2377
Comment
UCD95199
Argemone munita
Verne Grant; Irving Schneider
1947-9-5
8367
Lassen
northwest shore of Eagle Lake, by Sam Webb's place (Spaulding.)
Comment
CDA24523
Argemone munita subsp. rotundata
T. C. Fuller
1962-8-28
9476
Lassen
Road to Standish, 3 miles west of Wendell, north of Honey Lake.
0
Comment
SEINET10940510
Argemone platyceras var. hispida
Douglas G. LeDoux, David B. Dunn
1973-5-24
LeDoux 864
Lassen
Collected on raod bank 24 mi n of calif state line of hwy 395.
Comment
CAS-BOT-BC82117
Arnica chamissonis
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49429
Lassen
Elysian Valley, west of Janesville
1325
Comment
CHSC107316
Arnica chamissonis
Lowell Ahart; John Dittes
2011-6-21
17534
Lassen
About 100 yards southwest of where the levee road crosses Big Valley Canal, in big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
1263
Comment
CHSC59072
Arnica chamissonis
Vernon H. Oswald; Lowell Ahart
1992-8-25
5192
Lassen
Lassen Volcanic National Park. West shore of Snag Lake SW of the islands.
1851
Comment
JEPS88428
Arnica chamissonis
Vernon H. Oswald and Lowell Ahart
1996-8-1
8109
Lassen
sw Westwood (shore of reservoir ne of Indian Ole Dam); Mountain Meadows Reservoir
1539
Comment
CAS-BOT-BC82115
Arnica chamissonis
Parkison
1916-7-21
36
Lassen
Lassen Forest, Harvey Valley
1676
Comment
RSA0115088
Arnica chamissonis subsp. foliosa
Lowell A. Ahart, John Dittes
2008-6-20
14902
Lassen
About 150 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
1263
Comment
CAS-BOT-BC82313
Arnica cordifolia
Marcus E. Jones
1897-6-28
s.n.
Lassen
Diamond Mt., Susanville, Perkin's Ranch
2133
Comment
CDA10117
Arnica cordifolia
T. C. Fuller
1963-7-15
10896
Lassen
Prescott Canyon, 2.5 miles north of Hayden Hill, ca. 15.5 miles south of Adin.
0
Comment
UC1137700
Arnica cordifolia
A. Simontacchi
1940-5-21
764
Lassen
4.6 mi sse of Blacks Mtn.; Hall Flat Quad.
1737
Comment
CHSC108027
Arnica cordifolia var. cordifolia
Lowell Ahart; John Dittes
2011-6-20
17484
Lassen
Forest floor, about 50 yards east of the stream, about 100 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
UCR7843
Arnica longifolia
Marilyn Malin
1968-6-27
257
Lassen
Lassen National Forest. Papoose Valley Meadow [Papoose Meadows, along Papoose Creek south of Eagle Lake, 2 mi south of Gallatin Beach.]
1620
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
UCD129144
Arnica sororia
G. Schoolcraft
1994-6-9
2298
Lassen
Ash Valley RNA between Adin and Madeline, CA.
1600
Comment
SEINET3358258
Artemisia arbuscula
A. A. Beetle
1957-8-16
12763
Lassen
Between Susanville and Johnstonville.
Comment
CAS-BOT-BC85003
Artemisia arbuscula subsp. arbuscula
Clare B. Hardham
1971-8-22
18370
Lassen
Diamond Mountain
2346
Comment
RSA78904
Artemisia arbuscula subsp. arbuscula
E. K. Balls, Percy C. Everett
1952-10-10
18145
Lassen
6.7 mi. SE of Ravendale, Hwy 395, between Susanville and Alturas
1280
Comment
JEPS103162
Artemisia biennis
B. Corbin and D. Armentrout
2002-9-4
1100
Lassen
Biscar Reservoir, near dam on upper pond
1357
Comment
UC1192211
Artemisia biennis
Malcolm A. Nobs and S. Galen Smith
1949-8-20
1482
Lassen
I mi n of Doyle (Long Creek); Honey Lake Valley
Comment
CAS-BOT-BC84832
Artemisia cana subsp. cana
G. Thomas Robbins
1945-10-18
2157
Lassen
Harvey Valley, Lassen National Forest
1676
Comment
CAS-BOT-BC90331
Artemisia douglasiana
John Thomas Howell
1975-7-23
51390
Lassen
Susanville
1295
Comment
CAS-BOT-BC90330
Artemisia douglasiana
Clare B. Hardham
1971-8-22
18374
Lassen
North slopes, Diamond Mountain
2133
Comment
CHSC77186
Artemisia dracunculus
G. Schoolcraft
1999-6-29
2847
Lassen
East edge of Madeline Plains NE of Ravendale.
1627
Comment
UC1776711
Artemisia dracunculus
G. Schoolcraft
1992-8-11
2248
Lassen
Near inters. of Wingfield and Bass Hill Roads
1322
Comment Read comments Aug 12 2019
RSA523927
Artemisia ludoviciana subsp. ludoviciana
G. H. True
1937-7-10
783
Lassen
Bull Flat, Refuge 1Q
1524
Comment
CAS-BOT-BC90830
Artemisia nova
Arnold Tiehm; Gary Schoolcraft
2003-9-11
14368
Lassen
2.9 road miles N of Karlo Road on highway 395 from Litchfield to Alturas, just east of the highway
1402
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
SEINET263201
Artemisia nova
J. Lyman
1994-4-23
4242
Lassen
Along Highway 395, ca. 25 miles north of Susanville on intersecting BLM road
1433
Comment
CDA19747
Artemisia spinescens
D. Tillotson
1942-6-1
s.n.
Lassen
Modoc Plateau; Mud Flat.
0
Comment
CHSC60307
Artemisia tridentata
Mary Ann Showers
1992-6-13
2534
Lassen
Lassen Volcanic Naitonal Park. Trail from Snag Lake jct to Widow Lake.
1828
Comment
CHSC7180
Artemisia tridentata
Lynn R. Thomas
1969-4-17
99
Lassen
Ca. 100 yds down hillside W of Rice Canyon Rd. across small creek, 5 mi N of junction with 'back road to Litchfield', 12 mi E of Susanville.
1310
Comment
CAS-BOT-BC97325
Artemisia tridentata subsp. tridentata
George W. Gillett
1957-9-4
1132
Lassen
Near Bute Lake; intersection of the Widow Lake - Snag Lake trails
1859
Comment
POM30964
Artemisia tridentata subsp. tridentata
Marcus E. Jones
1897-6-28
s.n.
Lassen
Top of Diamond Mt. Susanville. Perkin's Ranch.
2226
Comment
UC1136978
Artemisia tridentata subsp. tridentata
George A. Fisher and Irwin H. Johnson
1933-9-8
F 282
Lassen
Patterson Flat Lassen National Forest, Patterson Flat
1706
Comment
CHSC77188
Artemisia tridentata subsp. vaseyana
G. Schoolcraft
1994-9-13
2431
Lassen
Just above gate along road to Fredonyer Pk. lookout.
2255
Comment
JEPS124637
Artemisia vulgaris
Dixie Funnell
1965-7-13
137
Lassen
Growing under bridge about 4 feet from the water. Highway 299, under bridge 705 for pit overflow.
Comment
CHSC6222
Asclepias fascicularis
M. West
1946-7-10
Lassen
Pine Creek, Eagle Lake.
1584
Comment
POM261535
Aster intermedius
Alice Eastwood
1912-8-22
1895
Lassen
Battle Creek Meadows, Lassen Butte Region
Comment
UCD105587
Astragalus
Grady L. Webster
1989-5-13
7720
Lassen
2.5 miles E of Beckworth Pass.
1493
Comment
UCD105589
Astragalus
Grady L. Webster
1989-5-13
7721
Lassen
2.5 miles E of Beckworth Pass.
1493
Comment
NY790903
Astragalus agrestis
R. M. Austin
06 1898
2211
Lassen
Madaline Plains
Comment
UC13379
Astragalus agrestis
Mrs. R. M. Austin and Bruce
June 1898
2211
Lassen
Madaline Plains
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
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
NY791376
Astragalus andersonii
W. W. Eggleston
1911-5-29
6734
Lassen
Vicinity of Doyle Station
1290
Comment
UC84393
Astragalus andersonii
T. Brandegee
1892-6-30
Lassen
Janesville
Comment Read comments Oct 22 2007
HSC61704
Astragalus anxius
Thomas W. Nelson, Jane P. Nelson
1980-7-6
5988
Lassen
In Ash Valley along Adin-Madeline Rd. 16 mi. E of Adin.
Comment
HSC69614
Astragalus anxius
Teresa Prendusi
1980-7-14
Lassen
Ash Valley, about 15 mi. W of Madeline along Ash Valley Rd.
1524
Comment
SEINET2059942
Astragalus argophyllus var. argophyllus
Arnold Tiehm, Margaret Williams, Gary Schoolcraft
1986-5-12
10347
Lassen
1 mi W of the State line on the dirt road from Hwy 395 to Smoke Creek, S side of Rush Creek
1341
Comment
CAS-BOT-BC178762
Astragalus canadensis var. brevidens
John Thomas Howell
1934-7-8
12504
Lassen
Spalding's, Eagle Lake
Comment
HSC82253
Astragalus curvicarpus
Thomas W. Nelson, Jane P. Nelson
1980-7-6
6005
Lassen
Along Adin-Madelin Rd., 16 mi. E of Adin in Ash Valley
1555
Comment
HSC69613
Astragalus curvicarpus
Gary Schoolcraft
1979-6-19
77
Lassen
Just N of West Painter Flat Rd. intersection.
1720
Comment
RSA152593
Astragalus curvicarpus
I. L. Wiggins, Dorothy B. Wiggins
1961-6-11
16331
Lassen
13.5 mi. E of Susanville.
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
NY803537
Astragalus curvicarpus var. curvicarpus
LeDoux
1973-5-24
862
Lassen
Collected on road bank 24 miles north of California state line of Highway 395
Comment
CAS-BOT-BC182958
Astragalus filipes
H. D. Ripley; R. C. Barneby
1943-6-15
5759
Lassen
East of Viewland
1310
Comment
NY658500
Astragalus filipes
P. H. Raven
1958-6-17
13290
Lassen
Along US Highway 395, o.4 mile South of Ravendale
Comment
SEINET3140019
Astragalus filipes
R. W. Spellenberg
1996-6-13
12334
Lassen
26 km S of Doyle on US Hwy 395
1430
Comment
UC81426
Astragalus filipes
Mrs. R. M. Austin
June, 1879
43
Lassen
near Eagle Lake; near Eagle Lake
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
SEINET10452220
Astragalus filipes
Mary Susan Taylor
1982-5-29
Taylor 4569
Lassen
T22N R17E e/sw sec 23. Loyalton quad. In Sagebrush Scrub along dirt rd paral- leling Hwy 395 on its e side, ca. 0.5 mi n of 395 jct with Scott Rd, ca. 20 mi n of Reno. 5000 ft.
1524
Comment
CAS-BOT-BC186860
Astragalus gibbsii
John Thomas Howell
1974-7-8
50462
Lassen
Susanville
1295
Comment
SEINET3142990
Astragalus gibbsii
E. K. Balls
1950-5-9
15949
Lassen
6 mi S of Doyle, Hwy 395
1372
Comment
CAS-BOT-BC186867
Astragalus gibbsii
H. D. Ripley; R. C. Barneby
1942-5-22
4541
Lassen
Loyalton
1524
Comment
SEINET10970063
Astragalus gibbsii
Douglas G. LeDoux, David B. Dunn
1973-5-25
LeDoux 881
Lassen
Collected 3 mi n of milford, on hwy 395 at honey lake campgrounds.
Comment
CAS-BOT-BC186912
Astragalus inversus
Marcus E. Jones
1897-6-25
s.n.
Lassen
Susanville
1341
Comment
SEINET5325323
Astragalus iodanthus var. diaphanoides
M. J. Williams, Gary Schoolcraft; Arnold Tiehm
1986-5-12
86- 23 -2
Lassen
Smoke Creek Rd, E of Hwy 395, 1 mi W of Nevada-Calif. Boundary.
1341
Comment
CAS-BOT-BC178216
Astragalus kentrophyta
Mike Vasey
1990-6-30
9049
Lassen
Ash Valley, along primitive road south of junction of Ash Valley Road and Spooner Road, Modoc National Forest
1500
Comment
CAS-BOT-BC229046
Astragalus lemmonii
Marcus E. Jones
1897-6-19
s.n.
Lassen
Chat
1615
Comment
RSA0035824
Astragalus lemmonii
Lowell A. Ahart, John Dittes
2008-6-20
14968
Lassen
About 10 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
1263
Comment
CHSC13508
Astragalus lentiginosus
J. Pitts
1972-6-22
253
Lassen
130 yds. n of Eagle Lake Biology Station by an alkali marsh.
Comment
UCD55267
Astragalus lentiginosus
Ellen Dean
2006-5-15
3065
Lassen
East of town of Susanville, along County Road A27 (Center Road). Private land north of California Correctional Facility owned by Virginia Johnston, to be purchased by state for expansion of alfalfa fields.
1249
Comment
CAS-BOT-BC187155
Astragalus lentiginosus var. chartaceus
H. D. Ripley; R. C. Barneby
14 Jun.
5744
Lassen
Hidden Valley E of Susanville
1310
Comment
CAS-BOT-BC187159
Astragalus lentiginosus var. floribundus
Arnold Tiehm
1980-5-29
5751
Lassen
North end of Honey Lake Valley, 1 mile north of Wendel
1231
Comment
UC13383
Astragalus lentiginosus var. floribundus
L. T. Stephenson
Sep 1897
Lassen
Chat , Chat (Sierra Valley)
Comment
CHSC99508
Astragalus lentiginosus var. lentiginosus
Lowell Ahart; John Dittes
2008-6-22
15046
Lassen
Open meadow, east of the old barn, east of the dirt road, open meadow area, in Big Valley, about 4.7 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7.7 miles (air) northeast of Bieber.
1268
Comment
CHSC7667
Astragalus lentiginosus var. platyphyllidius
Beverley J. Wise
1969-5-4
56
Lassen
1.7 mi. west on Shaeffer Mtn Lookout Rd off Hwy 395 (approx. 1 mi. south of Las Co. Rd. 338).
1676
Comment
HSC28508
Astragalus lentiginosus var. platyphyllidius
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19294
Lassen
Along Hwy. 395, 4 mi. E of Standish
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-BC192841
Astragalus pulsiferae
Marcus E. Jones
1897-6-18
s.n.
Lassen
Chat
1524
Comment
UC1567373
Astragalus pulsiferae
G. Schoolcraft
1989-6-7
1906
Lassen
e slope Shaffer Mtn.
1524
Comment
CAS-BOT-BC192855
Astragalus pulsiferae var. pulsiferae
G. Schoolcraft
1989-6-7
1906
Lassen
East slope of Shaffer Mtn.
Comment
CHSC98311
Astragalus pulsiferae var. pulsiferae
R. Ondricek-Fallscheer
1999-7-2
196
Lassen
About 3/4 air mi SW of Hallelujah Junction (the junction of Hwy 70 and Hwy 395).
1499
Comment
RSA0074200
Astragalus pulsiferae var. pulsiferae
L. T. Stephenson
1897-09
6523
Lassen
Chat
Comment
NY678236
Astragalus purshii var. lectulus
S. L. Welsh
2001-6-14
28157
Lassen
East of Highway 395, road to Rams Horn Spring campground
1539
Comment
RSA0007957
Astragalus purshii var. lectulus
H. D. Ripley, R. C. Barneby
1944-5-30
5983
Lassen
2 miles N of Madeline.
1707
Comment
CHSC91198
Astragalus purshii var. purshii
Lowell Ahart; John Dittes
2005-6-1
11870
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
RSA715542
Astragalus purshii var. purshii
L. Ahart
2005-6-1
11870
Lassen
About 1/2 miles 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
NY694434
Astragalus purshii var. tinctus
W. W. Eggleston
1911-5-29
6711
Lassen
Vicinity of Doyle Station
Comment
UC1128895
Astragalus purshii var. tinctus
A. Simontacchi
1940-5-9
694
Lassen
4.5 mi sse of B.M. 7310 on Black Mtn; Halls Flat Quad., Lassen National Forest, Black Mtn
Comment
UC1136766
Astragalus purshii var. tinctus
George A. Fischer and Irwin H. Johnson
1933-7-14
F- 249
Lassen
Lassen Forest
1767
Comment
UC773896
Astragalus purshii var. tinctus
L. R. Short and J. Warren
1936-6-11
S- 402
Lassen
Burgess Spring Experiment Range Lassen Forest, Burgess Spring Experiment Range (Lassen National Forest)
1789
Comment
RSA26502
Astragalus whitneyi
Marcus E. Jones
1897-6-30
s.n
Lassen
Susanville; 7 miles below Eagle Lake.
1524
Comment
RSA639008
Astragalus whitneyi
Michael A. Vincent
1999-6-9
8576
Lassen
Bureau of Land Management land, Madeline Plains: SW of US Rt 395, SE of CR 515 (Termo road), S of BLM road 1614, and SW of Termo. Along jeep road to Schott Canyon.
Comment
SEINET12165119
Astragalus whitneyi
N. H. Holmgren, Holmgren, P. K.
1980-1
9514
Lassen
Observation Peak, S side of Mt. 18km airline dist. E of Ravendale. T34N R16E S33
Comment
CHSC67217
Astragalus whitneyi var. confusus
James D. Jokerst
1991-5-29
3303
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
JEPS90987
Astragalus whitneyi var. confusus
Dean Wm. Taylor with Glenn Clifton
1990-6-12
10887
Lassen
along creek at crossing of Road 527 (Forest Road 39N08); Modoc Plateau, Ash Valley, Ash Creek
1554
Comment
SEINET10490007
Astragalus whitneyi var. confusus
David B. Dunn, Billy Joe Cox
1971-6-2
Dunn 17770
Lassen
Approx 12 mi s of adin on calif hwy 139, in basalt and clay; along edge of road On rolling knoll, in artemisia juniper assoc.
1372
Comment
UC1561813
Astragalus whitneyi var. siskiyouensis
Barbara Ertter with Gary Schoolcraft
1987-6-16
7183
Lassen
open rhyolitic ridge w Hot Springs VABM (Skeedaddle Mountains on ne side of Honey Lake); Skeedaddle Mountains, ne side Honey Lake,l w of Hot Springs
2133
Comment
UC1567401
Astragalus whitneyi var. whitneyi
G. Schoolcraft
1989-6-19
1915
Lassen
Ash Valley RNA/ACEC
1554
Comment
UC769845
Atriplex canescens
R. F. Hoover
1940-10-5
4668
Lassen
Wendel
Comment
UCR244040
Atriplex confertifolia
Jim Andre
1993-6-1
19710
Lassen
Sierra Nevada/Great Basin, Honey Lake Valley, north end of Honey Lake, c. 20 mi. E of Susanville, at Wendel
1218
Comment
JEPS95899
Atriplex heterosperma
Lowell Ahart
1999-9-13
8208
Lassen
on the west 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
UCD97425
Atriplex hortensis
Daniel B. Marcum
2005-6-3
Lassen
Vestal Ranch, maybe 6 miles SE of McArthur CA, Pitville, Lassen County.
1005
Comment
CHSC65305
Atriplex rosea
Vernon H. Oswald; Lowell Ahart
1995-8-14
7174
Lassen
Modoc Plateau. Hwy. 395 crossing a flooded playa (Mud Flat) 1.8 mi N of Smoke Creek Ranch Rd., N of Susanville.
1348
Comment
CAS-BOT-BC106555
Balsamorhiza
John Thomas Howell
1976-7-20
52011
Lassen
About 5 miles west of Fredonyer Pass near confluence of Susan River and Willard Creek - Sierra Nevada
1432
Comment
JEPS103182
Balsamorhiza
G. Schoolcraft
2000-4-26
2893
Lassen
West of Grasshopper Valley
1706
Comment
CHSC25298
Balsamorhiza hookeri
Pauleen Broyles
1977-5-30
140
Lassen
Spencer's Basin ca 8 km N of Herlong.
1770
Comment
JEPS1758
Balsamorhiza hookeri
Milo S. Baker
1952-5-23
12432
Lassen
1/2 mi w of, along Hwy. 36 Fredonyer Pass
1752
Comment
SEINET10617201
Balsamorhiza hookeri
Paul Gallian, Billy Joe Cox
1971-6-2
Gallian 476
Lassen
Approx. 2 mi. N of Susanville, across CA Hwy. 139 from Lassen Jr. College, in grassland at edge of Jeffery Pine & Artemisia.
1341
Comment
CHSC31967
Balsamorhiza sagittata
Wayne O. Baum
1971-6-21
71 -30
Lassen
S. slope of Gallatin Peak.
2042
Comment
CHSC114353
Balsamorhiza sagittata
B. Villegas
2011-5-20
Lassen
Susanville.
Comment
CAS-BOT-BC16436
Barbarea orthoceras
John Thomas Howell; Gordon H. True; Margaret Williams
1973-5-12
49177
Lassen
Sierra Nevada. Elysian Valley, northwest of Janesville.
1325
Comment
NY119710
Barbarea orthoceras
N. H. Holmgren
1978-6-11
8919
Lassen
Vicinity of spring at fork to Painters Flat on E side of Observation Peak, 28 km (17.4 mi.) E of Ravendale and 22.5 km (14 mi.) airline distance
1680
Comment
SEINET10479070
Bassia hyssopifolia
Mary Susan Taylor
1974-7-8
Taylor 263
Lassen
Ca. 1 mi N of Honey Lake, ca. 1 mi S of Standish, Honey Lake Wildlife Refuge.
Comment
JEPS121246
Beckmannia syzigachne
Lowell Ahart, John Dittes
2013-7-22
18871
Lassen
40 yards S of the man-made pond, about 110 yards N of the four tall poles, Ash Creek Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley.
Comment
UCD54547
Bergia texana
Ellen Dean; Petra Unger, Dawn Cunningham
2005-10-10
2731
Lassen
E. of town of Susanville. Private property N of California Correctional Facility.
1248
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
UC765510
Berula erecta
R. F. Hoover
1940-10-1
4658
Lassen
between Jonesville and Standish (near Honey Lake)
Comment
NY526245
Betula glandulosa
B. M. Bartholomew
1988-7-22
4500
Lassen
Mosquito Creek, ca. 2 km. southwest of Patterson Meadow, southern end of the Warner Mountain.
2080
Comment
HSC95177
Bidens cernua
Gordon Leppig, Juli Neander, Kai Neander
1997-7-25
678
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
UC1553384
Bidens cernua
G. Schoolcraft
1988-8-10
1848
Lassen
10 mi ne of Susanville (along Hwy 139 at Jack's Valley Spring); Highway 139, Jack's Valley Spring
1505
Comment
UC761894
Bidens cernua
R. F. Hoover
1940-10-1
4661
Lassen
near Honey Lake (between Janesville and Standish)
Comment
CDA10495
Bidens cernua var. cernua
Gordon Leppig
1998-8-17
1047
Lassen
Northern California Peatlands; Modoc National Forest. Blue Lake Ranch.
Comment
CHSC60760
Bistorta bistortoides
Vernon H. Oswald; Lowell Ahart
1993-6-3
5484
Lassen
Champs Flat Rd. (Lassen 105), Forest 32N28Y), 2.4 mi N of its junction with Lassen 21 (32N02) to Eagle Lake, on the W edge of Pine Creek Valley, between Poison Lake and Susanville.
1728
Comment
CAS-BOT-BC128015
Blepharipappus scaber
Marcus E. Jones
1897-6-24
s.n.
Lassen
10 to 15 miles west from Amedee
1219
Comment
CAS-BOT-BC128034
Blepharipappus scaber
John Thomas Howell
1976-7-20
52032
Lassen
In dried depression. about 5 miles west of Fredonyer Pass near confluence of Susan River and Willard Creek
1432
Comment
CAS-BOT-BC128041
Blepharipappus scaber
Farris Farris
1935-5-20
s.n.
Lassen
Three miles southwest of Susanville
1341
Comment
JEPS88876
Blepharipappus scaber
Lauramay T. Dempster
1961-6-17
1669
Lassen
about 4 mi sw junction with Richmond Road (s of Susanville); Gold Run Creek
Comment
UC577280
Blepharipappus scaber
David D. Keck and J. Clausen
1935-6-24
3733
Lassen
2 mi s of Ravendale
1463
Comment
CAS-BOT-BC127955
Blepharipappus scaber
Dr. Jean Linsdale
1929-6-9
s.n.
Lassen
Pete's Valley
Comment
RSA647521
Blepharipappus scaber
Marion P. Harthill
1972-6-17
806
Lassen
Ravendale.
1646
Comment
UC1181375
Blepharipappus scaber
R. W. Thorp and G. I. Stage
1960-6-11
60 -63
Lassen
6.5 mi north of Termo
Comment
JEPS53205
Boechera
Leland S. Smith
1918-5-11
924
Lassen
Hayden Hill Modoc Forest
Comment
UC1924569
Boechera
Debra Valov
2006-5-30
2006041
Lassen
Bieber off County Rd A2 c. 12 km east of Hwy 299
1285
Comment
UC2046023
Boechera lincolnensis
Barbara L. Wilson with Richard Brainerd, Danna Lytjen, Bruce Newhouse and Nick Otting
2004-8-24
11189
Lassen
Snowstorm Creek, at a spring; upstream of Biscar Reservoir, west of an old railroad right of way.
Comment
CAS-BOT-BC14092
Boechera pauciflora
John Thomas Howell; Gordon H. True; Wayne Dakan
1974-7-30
50687
Lassen
Sierra Nevada. South and southeast of Diamond Mountain.
2286
Comment
CHSC75475
Boechera puberula
Vernon H. Oswald; Lowell Ahart
1999-6-9
9761
Lassen
Bizz Johnson Trail just east of Devils Corral Trailhead located off of Hwy. 36 between Susanville and Fredonyer Summit. Adjacent to trail.
1420
Comment
CHSC99134
Boechera puberula
Lowell Ahart; John Dittes
2008-6-19
14883
Lassen
Open hillside, about 100 yards east of Willow Creek, about 120 yards northeast of Highway 139, near Forest Road 36N02, about 19.6 miles east-southeast of Bieber.
1578
Comment
CHSC40526
Boechera retrofracta
J. D. Jokerst
1983-5-30
1796
Lassen
West of Ash Valley, along the road that leads to Know Mt. ca 1.0 mile north of the road to either Aden or Madeline.
Comment
CHSC99133
Boechera retrofracta
Lowell Ahart; John Dittes
2008-6-19
14884
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
CHSC40528
Boechera sparsiflora
J. D. Jokerst
1983-5-30
1797
Lassen
West of Ash Valley 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
JEPS88209
Boechera sparsiflora
Vernon H. Oswald and Lowell Ahart
1996-6-17
7774
Lassen
ca. 7 mi. w. Susanville (Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36, slope at the bridge spanning the Susan R. on n. side of Hwy 36); Modoc Plateau, Bizz Johnson Trail
1432
Comment
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
RSA32754
Boisduvalia macrantha
A. A. Heller
1938-7-28
15295
Lassen
About a mile east of Westwood
1524
Comment
HSC16160
Brasenia schreberi
Fred J. Kindel
1955-7-14
Lassen
Mt. Meadows Reservoir
Comment
HSC103654
Brickellia californica
Thomas W. Nelson, Jane Nelson
1985-8-10
8021
Lassen
Along west side of Silver Lake.
1829
Comment
UC1037276
Brickellia grandiflora
Leo Whitney
1934-7-25
1758
Lassen
ca. 15 mi w of, Eagle Lake; Lassen National Forest, Crater Mountain
2225
Comment
UCR202646
Brickellia microphylla
George K. Helmkamp
1990-9-23
B- 15
Lassen
Modoc Plateau, Susanville
1189
Comment
CHSC92737
Brodiaea coronaria subsp. coronaria
L. P. Janeway
2005-7-3
8455
Lassen
High Cascade Range. Near large shallow stock pond 0.3 km west of Road 35N38 (road to Blacks Ridge Lookout Tower), 1.9 road km south or Road 22; 2.3 air km northwest of the lookout.
1580
Comment
UC1249280
Brodiaea coronaria subsp. coronaria
Arthur Cronquist and Arthur H. Holmgren
1959-6-18
8485
Lassen
5 mi s Adin
Comment
CAS-BOT-BC457056
Brodiaea coronaria subsp. coronaria
Ella Dales Cantelow
1940-5-31
3919
Lassen
East of McArthur, Hy. 299
Comment
CAS-BOT-BC144333
Bromus
R. E. Frenkel
1964-7-12
666
Lassen
On California Highway 299, 1.5 mile west of Bieber.
1249
Comment
CAS-BOT-BC149497
Bromus briziformis
Mrs. H. C. Cantelow
1941-5-22
s.n.
Lassen
Few miles north of Leitchfield in lava country.
Comment
CHSC7689
Bromus briziformis
Beverley J. Wise
1969-5-16
125
Lassen
34.5 mi. S. E. of Susanville on Co. Rd 320. (Stacey)
1584
Comment
SEINET3921578
Bromus briziformis
Noel H. Holmgren, Patricia K. Holmgren
1978-6-11
8909
Lassen
Vicinity of spring at fork to Painters Flat on east side of Oberservation Peak. 28 km (17.4 mi) east of Ravendale and 22.5 km (14 mi) airline distance.; 0
1680
Comment
UCR119112
Bromus carinatus
Beecher Crampton
1954-7-5
2055
Lassen
Modoc Plateau, 4.5 miles west of Susanville, along state highway 36
1433
Comment
CAS-BOT-BC149584
Bromus carinatus var. carinatus
John Thomas Howell
1973-7-10
49778
Lassen
Sierra Nevada. Fredonyer Pass.
1737
Comment
CDA31386
Bromus carinatus var. carinatus
D. R. Hill
1968-7-8
Lassen
James R. Reynolds ranch, Revendale.
0
Comment
UC1136817
Bromus carinatus var. carinatus
George A. Fischer, Irwin H. Johnson
1933-7-12
F 231
Lassen
Lassen National Forest, Patterson Flat Patterson Flat; Lassen National Forest, Patterson Flat
1737
Comment
UC773968
Bromus carinatus var. carinatus
L. R. Short and J. Warren
1936-6-29
S 460
Lassen
Lassen National Forest, Burgess Spring Experimental Range Burgess Spring Experimental Range; Lassen National Forest, Burgess Spring Experimental Range
1820
Comment
CAS-BOT-BC155940
Bromus commutatus
G. Schoolcraft
1986-6-17
1624
Lassen
North side of Tuledad Canyon near Nevada state line.
1554
Comment
UCD59488
Bromus diandrus
L. D. Whitney
1935-6-28
s.n.
Lassen
Bieber.
Comment Read comments Jun 24 2009
UCD58839
Bromus inermis
M. C. Collins
1926-6-14
s.n.
Lassen
Susanville.
Comment
JEPS124392
Bromus japonicus
Lowell Ahart, John Dittes
2015-7-13
20310
Lassen
Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
Comment
UCD32672
Bromus japonicus
Beecher Crampton
1954-7-6
2076
Lassen
Lassen County, 15 miles south of Ravendale, along US highway 395.
1676
Comment
SEINET10517964
Bromus mollis
Douglas G. LeDoux, David B. Dunn
1973-5-25
LeDoux 872
Lassen
Collected 3 mi n of milford on hwy 395 at honey lake campgrounds.
Comment
UC60732
Bromus secalinus
M. S. Baker and Frank Nutting
1894-7-5
Lassen
Dixie Valley
Comment
HSC22362
Bromus sterilis
D. E. Anderson
1969-7-5
4998
Lassen
Freedonyer Pass, 15 mi. W of Susanville
1752
Comment
CAS-BOT-BC161575
Bromus suksdorfii
John Thomas Howell; Gordon H. True
1973-8-1
50222
Lassen
Sierra Nevada. Headwaters of Baxter Creek. East slope of Diamond Range south of Susanville.
2164
Comment
UC1136819
Bromus suksdorfii
George A. Fischer and 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
CHSC106670
Bromus tectorum
B. Ignacio
2008-5-3
Lassen
Fort Sage Mountains.
1520
Comment
UC1142960
Calamagrostis stricta subsp. inexpansa
A. L. Hormay
1941-6-26
29
Lassen
Westwood Junction Lassen National Forest
1737
Comment
UCD149989
Callitriche palustris
William Anderson
1963-6-12
s.n.
Lassen
Honey Lake Valley.
Comment
CHSC6217
Calocedrus decurrens
P. Balch
1955-7-18
Lassen
Willow Creek, Eagle Lake.
1463
Comment
NY18970
Calocedrus decurrens
K. Morris
1973-5-25
226
Lassen
This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request.
Comment
SBBG15290
Calochortus leichtlinii
H. and M. Dearing
1938-7-1
2237
Lassen
top of pass W of Susanville
1762
Comment
UC1537209
Calochortus leichtlinii
Gordon H. True Jr.
1936-6-25
533
Lassen
n side Hog Flat Reservoir
1524
Comment
UC843660
Calochortus leichtlinii
A. A. Heller
1938-6-23
15200
Lassen
e of Fredonyer Pass
Comment
CAS-BOT-BC487967
Calochortus leichtlinii
A. A. Heller
1938-6-23
15200
Lassen
In the valley east of Fredonyer Pass,
Comment
HSC22969
Calochortus macrocarpus var. macrocarpus
John Pratt
1970-6-4
62
Lassen
Susanville
Comment
SEINET10675935
Caltha leptosepala var. biflora
Karen M. Meyer, Andrew Townesmith
2007-7-21
Meyer 145
Lassen
Lassen National Forest. 3.3 mi. on rd. 110, off Hwy. A21.
1920
Comment
CHSC36436
Calyptridium umbellatum
Dave Lueck
1981-6-13
18
Lassen
Dirt road at base of N. E. side of Galletin Peak.
1584
Comment
CHSC64890
Calyptridium umbellatum
Vernon H. Oswald
1995-6-26
6938
Lassen
Modoc Plateau. Gravel pit on the e side of Ash Valley Rd. (Lassen 527) 0.2 mi n of Spooner Rd. in Ash Valley.
1542
Comment
HSC17647
Calyptridium umbellatum
Fred J. Kindel
1955-6-8
Lassen
Westwood
Comment
SD61074
Calystegia occidentalis subsp. occidentalis
Darley F. Howe
1964-8-1
3915
Lassen
Parsnip Creek, Modoc National Forest, Warner Mountains.
1830
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
SEINET8197883
Camassia quamash var. breviflora
J. A. Young
1982-6-9
s.n.
Lassen
Meyer's Ranch, Adin.
1372
Comment
CAS-BOT-BC36995
Camelina microcarpa
James Jokerst
1983-5-31
61011
Lassen
Near Madeline Plains.
1583
Comment
JEPS109919
Camelina microcarpa
D. W. Taylor
2007-6-14
20130
Lassen
S end of Grasshopper Valley County Road 512 1 mile W of junction with Hwy 139.
Comment
NY850967
Camissonia boothii subsp. alyssoides
A. Tiehm
1980-5-29
5754
Lassen
North end of Honey Lake Valley, 2 air miles northwest of Wendel
1231
Comment
NY850974
Camissonia boothii subsp. alyssoides
A. A. Heller
1938-6-23
15212
Lassen
About midway between Mapes and Secret Valley on U.S. Highway #395.
1372
Comment
RSA294814
Camissonia boothii subsp. alyssoides
Arnold Tiehm
1980-5-29
5754
Lassen
North end of Honey Lake Valley, 2 air miles NW of Wendel.
1232
Comment
HSC69590
Camissonia claviformis subsp. cruciformis
Gary Schoolcraft
1980-5-16
235
Lassen
Behind kiln oven on Wendel Hwy.
1280
Comment
CHSC71091
Camissonia contorta
Vernon H. Oswald; Lowell Ahart
1998-5-22
9098 .1
Lassen
Hackstaff Rd. 1.0 mi south of Laver Crossing Rd., 0.2 mi north of Fort Sage Rd., ca. 3 mi north of Doyle.
1316
Comment
JEPS107788
Camissonia contorta
Lowell Ahart, John Dittes
2005-6-2
11939
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
JEPS89992
Camissonia contorta
Dean Wm. Taylor with Robert A. Price
1988-6-4
9768
Lassen
ca. 6 mi. e. MacArthur (along Hwy. 299 at crossing of Frazer Creek); Pit R. Watershed
1036
Comment
CHSC71240
Camissonia parvula
Vernon H. Oswald; Lowell Ahart
1998-6-4
9141
Lassen
Red Rock Rd. at its junction with Hwy. 395 south of Constantia.
1365
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
HSC42415
Camissonia tanacetifolia
Barbara Kelly
1977-8-9
565
Lassen
14.3 mi. E of Madeline on the dirt road from Adin
Comment
CAS-BOT-BC160834
Camissonia tanacetifolia subsp. quadriperforata
W. L. Jepson
1918-8-2
7767
Lassen
Beckwith Pass
1463
Comment
CAS-BOT-BC160859
Camissonia tanacetifolia subsp. tanacetifolia
A. M. Vollmer; L. Beane
1953-7-1
41
Lassen
Along Halls Flat road, beginning 6 miles west of Susanville to McArthur
1554
Comment
CAS-BOT-BC160875
Camissonia tanacetifolia subsp. tanacetifolia
Noel H. Holmgren; Patricia K. Holmgren
1980-7-3
9477
Lassen
Madeline Plains, a valley road 1.1 km (0.7 mi) west of US Highway 395 from a turnoff 10.3 km (6.4 mi) south of Madeline
1620
Comment
RSA38463
Camissonia tanacetifolia subsp. tanacetifolia
P. A. Munz
1947-5-19
11883
Lassen
Madeline
1677
Comment
CHSC99529
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
JEPS107837
Capsella bursa-pastoris
Lowell Ahart, John Dittes
2005-6-2
11919
Lassen
Near bunkhouse, 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
UC1137752
Capsella bursa-pastoris
L. R. Short and J. Warren
1936-6-9
S 408
Lassen
Lassen National Forest, Burgess Spring Experiment Range Burgess Spring Experiment Range; Lassen National Forest, Burgess Spring Experiment Range
1844
Comment
UCD114153
Capsella bursa-pastoris
L. R. Short; J. Warren
1936-6-9
S- 408
Lassen
Burgess Spring Experimental Range; around old sheep bed-grounds.
1844
Comment
JEPS94549
Cardamine breweri
Vernon Oswald and Lowell Ahart
1997-6-24
8618
Lassen
2.7 mi e of boundary of Lassen National Forest (s of Susanville, on n side of Diamond Mountain at an impoundment on the edge of Forest Road 29N43, 7.4 mi e of Gold Run Road (29N10)); Diamond Mountain, Forest Road 29N43
2036
Comment
CAS-BOT-BC37252
Cardamine breweri
Louella Bass
1980-5-22
s.n.
Lassen
Sierra Nevada. Bagley Springs along Susan River between Devil's Corral and 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
UC725739
Carex
A. A. Heller
1942-9-7
16531
Lassen
Echo Lake Lassen Volcanic National Park
Comment
CHSC85988
Carex abrupta
L. P. Janeway
2003-7-24
7918
Lassen
High Cascade Range. Small meadow below Forest Service Road 30N14 1.1 km from Road 30N21; small side drainage of upper Susan River 4.6 (air) km west of Clover Valley.
1920
Comment
CHSC89753
Carex abrupta
L. P. Janeway
2004-6-26
8170
Lassen
High Cascade Range. Along Road 33N15 (Lassen Trail) between Patterson Flat and Aspen Flat; Blacks Mountain Experimental Forest. Roadside ditch.
1790
Comment
CHSC58858
Carex angustata
Vernon H. Oswald; Lowell Ahart
1992-7-16
5115
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.
1719
Comment
HSC97144
Carex angustata
L. P. Janeway
2003-7-24
7912
Lassen
High Cascade Range. Along end of meadow and marsh along Bridge Creek, 1.8 km. N of Hwy. 44, just NW of the Cinder Pit
1716
Comment
JEPS63614
Carex angustata
Leland S. Smith
1922-7-30
68
Lassen
Martin Spring Meadow Lassen National Forest
Comment
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
SEINET7550662
Carex athrostachya
L. P. Janeway
2004-6-26
8158
Lassen
High Cascade Range. At Patterson Well in Patterson Flats; Black Mountains Experimental Forest. Poison Lake 7.5' quad.
1767
Comment
UC1537643
Carex athrostachya
Gordon H. True Jr.
1939-6-15
994
Lassen
Bullard Lake, W of Grasshopper Valley
Comment
JEPS87494
Carex aurea
Vernon H. Oswald and Lowell Ahart
1993-8-3
5742
Lassen
Cooper Swamp located E of Silver Lake just E of the Caribou Wilderness, ca. 13 mi (air) N of Lake Almanor.
1932
Comment
CAS-BOT-BC34933
Carex densa
T. C. Fuller
1966-7-20
14963
Lassen
South side of road to Pittville, 5.4 miles west of Little Valley Post Office. NW Lassen County.
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
UC1736284
Carex douglasii
Dean W. Taylor
1974-6-14
3716
Lassen
Poison Lake, on Hwy 44 ca. 2 miles W from the junction with Pittville Road
1615
Comment
UC803
Carex douglasii
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3289
Lassen
Honey Lake Valley
Comment
CAS-BOT-BC19778
Carex douglasii
Clarence Roy Quick
1962-6-17
32 -18
Lassen
sagebrush flat, north of DeLasmutt Ranch on old dirt road to Blacks Mountain E.F. Headquarters.
1615
Comment
JEPS87492
Carex filifolia var. erostrata
Vernon H. Oswald and Lowell Ahart
1993-6-3
5472
Lassen
Champs Flat Rd (Lassen 21/105, Forest 32N02) 1.8 mi n Hwy. 44 (between Poison Lake and Susanville)
1725
Comment
HSC103600
Carex fracta
Thomas W. Nelson, Jane Nelson
1985-8-10
8011
Lassen
Along north side of Silver Lake
1829
Comment
JEPS87491
Carex heteroneura
Vernon H. Oswald and Lowell Ahart
1993-8-3
5744
Lassen
e Silver Lake (at the sw edge of swamp, just e of the Caribou Wilderness, ca 13 mi (air) n of Lake Almanor); Cooper Swamp
1932
Comment
UC2031887
Carex heteroneura
Nick Otting
2003-7-15
684
Lassen
Sierra Nevada Mountains, Diamond Mountain, 1000 feet east of summit, 7.5 miles south-southwest of Susanville.
Comment
JEPS28381
Carex hoodii
George W. Gillett
1957-7-29
946
Lassen
along trail between Snag Lake and Butte Lake; Lassen Volcanic National Park
1859
Comment
UC1133501
Carex integra
A. Simontacchi
1940-5-14
720
Lassen
4.1 mi wnw Aspen Well; Lassen National Forest, Halls Flat Quadrangle
Comment
JEPS88667
Carex lenticularis var. impressa
Dean W. Taylor
1975-8-24
5407
Lassen
margin of Everett Lake Thousand Lake Wilderness Area, Magee Peak, Everett Lake
2307
Comment
UC1594638
Carex lenticularis var. impressa
Vernon H. Oswald and Lowell Ahart
1992-7-16
5115
Lassen
swamp on creek w Cinder Pit (on logging road paralleling the e side of creek, 1.3 mi n of Hwy 44 and McCoy Flat Reservoir, between Old Station and Susanville); Bridge Creek
1719
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
JEPS103202
Carex microptera
G. Schoolcraft
1994-7-7
2366 A
Lassen
south end of Warner Mountains West of Boot Lake
2194
Comment
POM81434
Carex multicaulis
Marcus E. Jones
1897-6-28
s.n.
Lassen
Diamond Mountain. Susanville. Perkin s Ranch.
1829
Comment
UC1133502
Carex nebrascensis
Robert W. Gardner
1939-6-6
G- 29
Lassen
Little Harvey Valley Halls Flat Quadrangle
Comment
HSC103619
Carex nebrascensis
Thomas W. Nelson, Jane Nelson
1985-8-10
8014
Lassen
Along north side of Silver Lake
1829
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
UC70637
Carex pellita
Jos. Burtt Davy
Jun 17 1897-Jun 24 1897
Lassen
Honey Lake Valley
Comment
SEINET4292243
Carex petasata
Unknown
2004-1
8139
Lassen
High Cascade Range. Halls Flat; about 0.3 km east of Road 33N13 3.5 km north of junction of Road 33N18. Swains Hole 7.5' quad.
Comment
UC1133448
Carex petasata
Robert W. Gardner
1939-6-28
G- 32
Lassen
Burgess Spring Experimental Range, Halls Flat Quadrangle Burgess Spring Experimental Range
Comment
SEINET7572130
Carex praegracilis
Lowell Ahart, John Dittes
2005-6-1
11877
Lassen
About 3/4 mile west of Scott Road, Long Valley, about 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.9 miles (air) northwest of Hallelujah Junction.
1470
Comment
UC1133503
Carex praegracilis
Robert W. Gardner
1939-6-15
G- 37
Lassen
Little Harvey Valley Halls Flat Quadrangle
Comment
UC1583985
Carex praegracilis
G. Schoolcraft
1990-6-12
2087
Lassen
about 17 mi e Ravendale; Pine Dunes RNA
1706
Comment
CHSC118476
Carex praegracilis
Don Lepley
2015-6-16
Lassen
Lassen National Forest. Eagle Lake Ranger District. Sandy Beach of Eagle Lake, ~1.6 air miles north of Spalding marina.
1559
Comment
JEPS109091
Carex preslii
D. W. Taylor
2008-6-19
20226
Lassen
Unnamed meadow equidistant between Papoose Meadwo and Mahogany Lake
Comment
CAS-BOT-BC118229
Carex scopulorum var. bracteosa
John Thomas Howell
1934-6-14
12162
Lassen
Near Lost Lake, Warner Mts.
2438
Comment
JEPS114623
Carex sheldonii
Lowell Ahart, John Dittes
2008-6-22
15045
Lassen
High dry bank of a levee, north of the old barn, east of the dirt road, open meadow area, in Big Valley, about 4.5 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7.5 miles (air) northeast of Bieber
1267
Comment
POM81761
Carex sheldonii
Marcus E. Jones
1897-7-2
s.n.
Lassen
Susanville Summit
1829
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
CHSC89751
Carex subfusca
L. P. Janeway
2004-6-26
8169
Lassen
High Cascade Range. Along Road 33N15 (Lassen Trail) between Patterson Flat and Aspen Flat; Blacks Mountain Experimental Forest. Roadside ditch.
1790
Comment
JEPS28383
Carex subfusca
George W. Gillett
1957-7-26
913
Lassen
e shore Butte Lake Lassen Volcanic National Park, Butte Lake
1844
Comment
JEPS28384
Carex subfusca
George W. Gillett
1957-7-26
911
Lassen
lake shore near ne arm of Butte Lake; Lassen Volcanic National Park, Butte Lake
1844
Comment
RSA702448
Carex subfusca
L. P. Janeway
2004-6-26
8169
Lassen
High Cascade Range; Along Road 33N15 (Lassen Trail) between Patterson Flat and Aspen Flat; Blacks Mountain Experimental Forest.
1790
Comment
CAS-BOT-BC116607
Carex subfusca
Clare B. Hardham
1971-8-22
18383
Lassen
Diamond Mountain streambed.
2133
Comment
CAS-BOT-BC116610
Carex subfusca
Hans Leschke
1954-7-5
s.n.
Lassen
Hat Lake
1965
Comment
CAS-BOT-BC116617
Carex subfusca
B. Clear
1938-7-14
s.n.
Lassen
Manzanita Lake, Lassen Park.
Comment
HSC103651
Carex utriculata
Thomas W. Nelson, Jane Nelson
1985-8-10
8009
Lassen
Along north side of Silver Lake
1829
Comment
CAS-BOT-BC115062
Carex vesicaria
George Wilson Gillett
1957-7-22
879
Lassen
South shore of Snag Lake, margin of gravel bars 100 yards from lake.
1850
Comment
CAS-BOT-BC248970
Castilleja
Philip A. Munz
1947-5-19
11866
Lassen
27.7 miles south of Ravendale, on Highway 395
1310
Comment
CHSC106570
Castilleja angustifolia
K. Schierenbeck
2008-5-3
Lassen
Fort Sage Mtns.
1439
Comment
CHSC93566
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
JEPS62334
Castilleja angustifolia
John L. Strother
1970-5-23
954
Lassen
ca 6 mi n Honey Lake
1280
Comment
UC585182
Castilleja angustifolia
E. B. Babcock, G. L. Stebbins Jr.
1936-6-7
1741
Lassen
above Red Rock
1432
Comment
UC1012183
Castilleja applegatei subsp. pinetorum
Francis W. Pennell
1940-6-9
25769
Lassen
Susanville; Route 36
1371
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
OBI48148
Castilleja chromosa
Rhonda Riggins
1989-4-27
1639
Lassen
Wash through volcanic boulder pavement, US 395, 8.4 mi N Litchfield, 26.6 mi S Ravendale
1311
Comment
CHSC4764
Castilleja lacera
R. Carter
1967-7-16
623
Lassen
Along side road.
Comment
CDA41240
Castilleja lacera
T. C. Fuller
1963-6-1
10631
Lassen
East side of road to Hall s Flat, 9.4 miles south of Pittville.
0
Comment
JEPS85915
Castilleja lemmonii
L. R. Heckard with R. Bacigalupi
1980-6-12
5260
Lassen
ne of Westwood (near golf course)
1554
Comment
JEPS86676
Castilleja lemmonii
L. R. Heckard with T. I. Chuang
1990-7-14
6756
Lassen
just e Westwood (n of Firland Rd (Hwy 36))
Comment
CHSC1713
Castilleja linariifolia
K. Chew
1954-7-17
Lassen
1615
Comment
CHSC1714
Castilleja linariifolia
1944-7-5
Lassen
Bogard.
1722
Comment
JEPS62629
Castilleja miniata
Clare B. Hardham
1969-8-28
17424
Lassen
w of Janesville; Sierra Nevada
Comment
CHSC6269
Castilleja miniata subsp. miniata
J. B. Kimsey
1946-6-17
Lassen
Mt. Fredonyer. Eagle Lake.
2133
Comment
CAS-BOT-BC241000
Castilleja pilosa
Michael A. Vincent
1999-6-9
8584
Lassen
Along US Rt. 395, south of Ravendale Fire Station, 1.8 miles north of rest area, and 24.8 miles north of Litchfield
1524
Comment
CHSC99144
Castilleja pilosa
Lowell Ahart; John Dittes
2008-6-19
14879
Lassen
Open flat, east bank of Willow Creek, about 30 yards northeast of Highway 139, near Forest Road 36N02, about 19.6 miles east-southeast of Bieber.
1578
Comment
CHSC113090
Castilleja tenuis
Lowell Ahart; John Dittes
2013-7-22
18840
Lassen
West margin of a duck field, about 30 yards southeast of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
CHSC93698
Castilleja tenuis
Lowell Ahart; John Dittes
2005-6-2
11962
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
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
JEPS107313
Castilleja tenuis
Lowell Ahart, John Dittes
2005-6-1
11902
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
JEPS114750
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
SBBG128749
Castilleja tenuis
L. Ahart, J. Dittes
2008-6-22
15027
Lassen
a small natural drainage, ca. 20 yards W of the rd levee, open meadow area, in Big Valley, ca. 2.1 mi (air) NE of the Headqaurters at Ash Crk State Wildlife Area, ca. 5.0 mi (air) NE of Bieber
1262
Comment
UC1553382
Ceanothus cordulatus
G. Schoolcraft
1988-7-11
1823
Lassen
ca 5 mi n Hwy 36 (along Hwy 44)
1676
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
CAS-BOT-BC52049
Ceanothus prostratus
Barbara Shervanick
1974-5-7
1273
Lassen
About 2 miles North of Milford on Highway 395, 1 mile Southwest of Honey Lake
1219
Comment
RSA122353
Ceanothus prostratus
C. B. Bradshaw
1939-5-27
233
Lassen
S end Black Mt. EF Plot 39-1, s15.
1753
Comment
UC1071527
Ceanothus prostratus
K. Bradshaw
1939-5-27
233
Lassen
Black Mt. Experimental Forest - Plot 39-1, s end Lassen National Forest, Halls Flat Quad.
Comment
UC1071529
Ceanothus prostratus
A. Simontacchi
1940-5-13
706
Lassen
4.1 mi W of Harvey Mountain
1981
Comment
CHSC6287
Ceanothus velutinus
R. Clicquennoi
1967-7-1
37
Lassen
Four miles s of Eagle Lake Biology Station off Gallatin Beach Road.
1554
Comment
HSC22955
Ceanothus velutinus
John Pratt
1970-6-21
28
Lassen
1738
Comment
CDA7222
Centaurea diffusa
T. C. Fuller
1962-8-28
9480
Lassen
East side of Highway 395 to Madelaine, 1.6 miles north of Termo.
0
Comment
UC1229867
Centaurea diffusa
T. C. Fuller
1962-8-28
9480
Lassen
E side of Hwy 395 to Madelaine, 1.6 mi N of Termo
Comment
UCD159569
Centaurea stoebe subsp. micranthos
D. S. Park
2011-6-27
306
Lassen
East of Westwood. Growing near Willard Creek.
Comment
CAS-BOT-BC281208
Centaurea stoebe subsp. micranthos
Lee E. Wheeler
1962-8-15
s.n.
Lassen
Doyle area
Comment
UC1181382
Centaurea virgata subsp. squarrosa
Darwyn Briggs
1960-7-28
Lassen
Big Valley
1264
Comment
RSA186838
Centaurea virgata subsp. squarrosa
T. C. Fuller
1966-7-20
14961
Lassen
Both sides of road from 0.1 to 0.9 miles south of the bridge at Pittville
Comment
JEPS46972
Centaurium exaltatum
W. L. Jepson
1918-8-2
7759
Lassen
Beckwith Pass
1463
Comment
JEPS84967
Centaurium exaltatum
Barbara Ertter
1987-7-24
7305
Lassen
ca 0.75 mi ene Beckwourth Pass (at the end of old crumbling paved road)
1524
Comment
NY187215
Centaurium exaltatum
B. J. Ertter
1987-7-24
7305
Lassen
Ca. 3/4 mi ENE of Beckwourth Pass at end of crumbling paved road.
1524.0
Comment
RSA715992
Centaurium muehlenbergii
L. Ahart, John Dittes
2005-6-2
11977
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-BC279592
Centromadia pungens subsp. pungens
Gordon H. True
1973-8-22
7656
Lassen
North shore of Honey Lake, ca. 5 miles east of Janesville and just west of Hartson Reservoir
1219
Comment
CAS-BOT-BC388199
Cerastium fontanum subsp. vulgare
John Thomas Howell
1976-7-19
51990
Lassen
On Gold Run Creek southwest of Susanville
1386
Comment
JEPS114633
Cerastium glomeratum
Lowell Ahart, John Dittes
2008-6-20
14966
Lassen
About 10 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7.0 miles (air) northeast of Bieber
1263
Comment
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
HSC23531
Ceratophyllum demersum
R. Carter
1967-7-13
593
Lassen
5 mi. E of Eagle Lake Biology Station at point where road comes nearest to Willow Creek
1561
Comment
UC956838
Ceratophyllum demersum
Verne Grant and Irving Schneider
1947-9-6
8384
Lassen
Creek midway between Eagle Lake and Susanville; creek midway between Eagle Lake and Susanville
Comment
POM89499
Cercocarpus ledifolius
Marcus E. Jones
1897-6-25
s.n.
Lassen
Susanville.
1341
Comment
CHSC29948
Cercocarpus ledifolius var. ledifolius
Robin L. Ondricek
1978-6-8
45
Lassen
Ridge E of Lower Dry Lake.
1767
Comment
UC1136909
Cercocarpus ledifolius var. ledifolius
L. R. Short
1936-9-30
S 507
Lassen
Lassen National Forest, Burgess Spring Experiment Range Burgess Spring Experiment Range; Lassen National Forest, Burgess Spring Experiment Range
1783
Comment
CHSC80142
Chaenactis douglasii
Jeanne Boze
1981-6-11
102
Lassen
Along roadside, 5.5 mi from Hwy 139 on Horse Lake Road.
1676
Comment
SD8909
Chaenactis douglasii
R. M. Austin
Aug 1882
Lassen
Comment
CAS-BOT-BC276614
Chaenactis douglasii var. douglasii
Louella Bass
1978-7-11
78 -10
Lassen
Elysian Valley
1325
Comment
CAS-BOT-BC276616
Chaenactis douglasii var. douglasii
John Thomas Howell
1955-7-19
30813
Lassen
E side of Beckwourth Pass
1493
Comment
CHSC13859
Chaenactis douglasii var. douglasii
George Ellmore
1973-6-25
731
Lassen
West Eagle Lake on Pelican Point.
1560
Comment
POM31017
Chaenactis douglasii var. douglasii
Marcus E. Jones
1897-6-25
s.n.
Lassen
Susanville.
1341
Comment
UCR7839
Chaenactis douglasii var. douglasii
Marilyn Malin
1968-6-19
250
Lassen
Eagle Lake Biological Station[Chico State Biological Station], 50 ft. NE of the A-Frame cabin
59
Comment
SEINET7450297
Chaenactis stevioides
F. B. Headley
1915-5-28
s.n.
Lassen
Honeylake
Comment
SEINET10686163
Chamaebatia foliolosa
Karen M. Meyer, Andrew Townesmith
2007-7-23
Meyer 149
Lassen
Lassen National Forest. 6 miles SW on 32N10 off Hwy. 44. (Turn at rest area on Hwy. 44). At junction of 32N10, 32N09 and 31N36.
1993
Comment
UC747012
Chamaebatiaria millefolium
G. Thomas Robbins
1945-10-6
2151
Lassen
nw slope ofCrater Lake Mountain, Lassen National Forest Crater Lake Mountain; Lassen National Forest, Crater Lake Mountain
1981
Comment
SEINET10937236
Chamaebatiaria millefolium
Mary Susan Taylor
1974-5-4
Taylor 220
Lassen
Between Eagle Lake Field Station and the marsh area ca. 1/4 mi N of the station, E side of Eagle Lake, N of Susanville.
Comment
CHSC21229
Chamaesaracha nana
Robert A. Schlising
1974-6-20
3145
Lassen
Near Lower Dry Lake, about 3 mi E of Eagle Lake.
Comment
CHSC36489
Chamaesaracha nana
Theresa Costa
1982-6-4
38
Lassen
Jct of rd e Murrers Upper Meadow and rd to Dry Lakes.
Comment
UC1609091
Chamaesyce serpillifolia subsp. serpillifolia
Vernon H. Oswald and Lowell Ahart
1993-7-8
5660
Lassen
1.9 mi n Hwy 44 (Pittville Rd., on se edge of lake, between the rr and the lake); Poison Lake
1709
Comment
UC62593
Cheilanthes intertexta
Baker and Nutting
1894-7-3
Lassen
Dixey Mts
Comment
UCR265181
Chenopodium berlandieri
Barbara Ertter
1987-7-24
7301
Lassen
Eastern Sierra Nevada Mountains, c. 3/4 mi east-northeastof Beckwourth Pass at end of old paved road
1524
Comment
UC1949078
Chenopodium berlandieri
Barbara Ertter
1987-7-24
7301
Lassen
ca 3/4 mi ENE of Beckwourth Pass
Comment
CDA3039
Chenopodium botrys
T. C. Fuller
1964-10-7
12693
Lassen
Hillside Cemetery, south side of Highway 299 to Fall River Mills, ca. 2 miles southwest of Nubieber.
0
Comment
UC1191341
Chenopodium glaucum
Malcolm A. Nobs and S. Galen Smith
1949-7-22
1072
Lassen
Eagle Lake; n shore
Comment
CAS-BOT-BC426318
Chenopodium incognitum
John Thomas Howell
1934-6-10
11900
Lassen
5 miles N of Horse Lake on road to Alturas
Comment
CAS-BOT-BC426358
Chenopodium incognitum
Margaret Williams; Steven Williams
1974-7-26
s.n.
Lassen
Near Hallelujah Junction
1493
Comment
CDA23382
Chenopodium leptophyllum
M. K. Bellue
1938-8-1
Lassen
Butte Lake.
0
Comment
CHSC29946
Chenopodium nitens
Robin L. Ondricek
1978-8-6
116
Lassen
In dried, cracked mud at Lower Dry Lake.
1645
Comment Read comments Nov 1 2014
CAS-BOT-BC260781
Chenopodium rubrum var. humile
Malcom A. Nobs; S. Galen Smith
1949-7-22
1071
Lassen
Northeast shore of Eagle Lake
Comment
CAS-BOT-BC451322
Chimaphila
Marcus E. Jones
1897-6-28
s.n.
Lassen
Diamond Mt., Susanville. Perkin's Ranch
2133
Comment
UC1483860
Chimaphila menziesii
G. Schoolcraft
1980-7-15
311
Lassen
on Big Valley Mt. timber sale area w. of Bieber
1798
Comment
POM105904
Chorizanthe watsonii
Marcus E. Jones
1897-6-18
s.n.
Lassen
Chat. [also Chats, a former settlement]
1524
Comment Read comments Mar 6 2011
CHSC13793
Chrysolepis sempervirens
Robert Smallwood
1970-7-9
154
Lassen
Gallatin Peak, 1/2 mile west of Dean's Meadow.
1950
Comment
CHSC21064
Chrysolepis sempervirens
M. S. Taylor
1975-7-16
842
Lassen
On trail between Echo Lake and Summit Lake, Lassen National Park.
Comment
CHSC30554
Chrysolepis sempervirens
Sori H. Shad
1970-6-26
20
Lassen
Found at the edge of Deans Meadow.
1828
Comment
CHSC5249
Chrysolepis sempervirens
P. Balch
1955-6-12
Lassen
Eagle Lake. Forest between Eagle and Pittville Rd.
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
UC1135264
Chrysolepis sempervirens
A. Simontacchi
1940-6-15
881
Lassen
0.4 mi nw Blacks Mtn.; Lassen National Forest, Halls Flat Quad.
2164
Comment
CHSC78477
Chrysothamnus humilis
Beth Corbin
2000-7-24
979
Lassen
Northeast of Poison Lake, just east of the Pittville Highway.
1705
Comment
RSA79230
Chrysothamnus nauseosus subsp. albicaulis
E. K. Balls, Percy C. Everett
1952-10-10
18135
Lassen
4 miles east of Susan River Bridge, Hwy. 36
1372
Comment
HSC5341
Chrysothamnus viscidiflorus subsp. viscidiflorus
M. T. Milligan
1964-8-6
196
Lassen
Eagle Lake, near shore at Eagle Lake General Store.
1677
Comment
UC1136976
Chrysothamnus viscidiflorus subsp. viscidiflorus
L. R. Short and Wm. Gansberg
1936-8-13
S- 494
Lassen
Lassen Forest, Burgess Spr. Exp. Range
1770
Comment
UC747217
Chrysothamnus viscidiflorus subsp. viscidiflorus
G. Thomas Robbins
1945-10-7
2154
Lassen
2 to 3 mi ne of Burgess Spring in Harvey Valley (se slope of Harvey Mt.); Lassen National Forest, Harvey Mt.
1828
Comment
CAS-BOT-BC162753
Chylismia claviformis subsp. cruciformis
G. H. True
1937-7-10
791
Lassen
Skeedaddle
Comment
JEPS29747
Chylismia claviformis subsp. cruciformis
Rimo Bacigalupi, and L. R. Heckard
1962-5-28
8502
Lassen
2 mi e Wendel junction (on road past Flanagan to Pyramid Lake, Nevada, in low areas n of Honey Lake)
1219
Comment
UC1184293
Chylismia claviformis subsp. cruciformis
Peter H. Raven and Otto T. Solbrig
1958-6-17
13269
Lassen
along US Hwy 395 19.0 mi s Ravendale
Comment
UC1602277
Chylismia claviformis subsp. cruciformis
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3399
Lassen
Amedee Honey Lake Valley
Comment
RSA746510
Cirsium andersonii
K. M. Meyer, A. Townesmith
2007-7-21
143
Lassen
Lassen National Forest. CA, 1.3 mi. on road 110, off Hwy A21,
1821
Comment
CAS-BOT-BC278010
Cirsium cymosum
Arnold Tiehm; James Young; Raymond Evans
1984-6-7
8596
Lassen
Flats on the northwest side of Shaffer Mountain, 9 air miles north-northwest of Litchfield
1386
Comment
CDA1169
Cirsium cymosum
T. C. Fuller
1963-7-16
10921 -A
Lassen
West of Hwy 395; 14.3 miles south of Ravendale.
0
Comment
CHSC60715
Cirsium cymosum
Vernon H. Oswald; Lowell Ahart
1993-6-14
5533
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). Between road and lake.
1566
Comment
CAS-BOT-BC278007
Cirsium cymosum
John Thomas Howell
1934-6-10
11908
Lassen
Madeline Plains near Termo
Comment
CAS-BOT-BC278090
Cirsium douglasii var. breweri
Hans Leschke
1960-9-8
1803
Lassen
Lassen Volcanic National Park. Little Hot Springs Valley
2225
Comment
CDA1260
Cirsium inamoenum
T. C. Fuller
1980-8-5
20312 -B
Lassen
28 km NE of Ravendale; east shore of Dodge Reservoir, 0.4 km east of campground.
Comment
SEINET10725916
Cirsium occidentale var. candidissimum
Karen M. Meyer, Andrew Townesmith
2007-7-21
Meyer 143
Lassen
Lassen National Forest. 1.3 mi. on rd. 110, off Hwy. A21.
1821
Comment
CAS-BOT-BC285517
Cirsium occidentale var. candidissimum
Blanche Clear
1940-7-30
s.n.
Lassen
Between Manzanita Lake and Burney Falls. On highway
Comment
CDA1489
Cirsium ochrocentrum
Lee Wheeler
1959-7-23
s.n.
Lassen
Richmond Rd., about 4 mi. SE of Susanville. (Janesville, SW of Johnstonville.)
Comment
CDA1490
Cirsium ochrocentrum
T. C. Fuller
1965-10-13
14199
Lassen
Madeline Plains E base of Dry Valley Ridge, 10 mi. W of Termo, 3 mi N of Termo-Grasshopper Rd.
Comment
CDA1529
Cirsium ochrocentrum
T. C. Fuller
1965-10-13
14200
Lassen
Madeline Plains E base of Dry Valley Ridge, 10 mi. W of Termo, 3 mi N of Termo-Grasshopper Rd.
Comment
CAS-BOT-BC280424
Cirsium ochrocentrum
Lee E. Wheeler
1959-7-23
s.n.
Lassen
M. A. Mallory prop. Richmond Rd., ca. 4 mi SE/Susanville
Comment
CDA32840
Cirsium ochrocentrum
CDFA Staff
1985-6-3
Lassen
Madelaine Plains
0
Comment
CAS-BOT-BC286310
Cirsium scariosum
James Jokerst
1983-7-25
1894
Lassen
Near Madeline Plains
1614
Comment
SEINET10474565
Cirsium scariosum
Mary Merello
1993-6-27
Merello 745
Lassen
Lassen National Forest at intersection of Forest Service Road 32N15 and Hwy. 94. Open conifer woodlands, dry.
1700
Comment
CDA21727
Cirsium undulatum
Lee Wheeler
1965-9-21
Lassen
Pitt River Ranch, first road going north west of Bailey Creek, first old vacant ranch on left side of road, 18 miles west of Termo.
0
Comment
CHSC23510
Cirsium vulgare
Wayne O. Baum
1971-7-6
71 -56
Lassen
Slope of Gallatin Peak.
1981
Comment
CAS-BOT-BC439005
Cistanthe monosperma
Jeanne Janish; Carl Janish
1938-9-6
s.n.
Lassen
Near Summit Lake, Lassen National Park.
2042
Comment
CAS-BOT-BC233917
Cistanthe umbellata
G. Schoolcraft
1987-4-29
1688
Lassen
Ash Valley RNA
1554
Comment
CHSC92753
Clarkia gracilis subsp. gracilis
L. P. Janeway
2005-7-4
8465
Lassen
High Cascade Range. Ridge top north above Long Valley; 0.4 km west of Road 34N41.
1752
Comment
CHSC9542
Clarkia lassenensis
A. W. Harvilik
1967-6-30
18
Lassen
Collected near the junction of rd. 5.19 and the rd. to Murrer's Meadow.
1524
Comment
UC506933
Clarkia rhomboidea
George A. Fischer, Irwin H. Johnson
1933-7-14
F 246
Lassen
Lassen Forest
1767
Comment
CAS-BOT-BC164868
Clarkia rhomboidea
H. D. Ripley; R. C. Barneby
1943-6-13
5693
Lassen
South of Milford
1432
Comment
CHSC80231
Clarkia stellata
Jeanne Boze
1981-6-12
108
Lassen
On hillside along road to 5 corners about 3 mi from Eagle Lake Field Station.
1706
Comment
CHSC63414
Claytonia rubra subsp. depressa
Vernon H. Oswald; Beth Corbin, Michael Dolan
1994-6-18
6311
Lassen
Clarks Valley Rd. (Lassen 510) ca. 9 mi E of Madeline.
1859
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
RSA0039348
Cleome
John F. Emmel
1993-7-29
1282
Lassen
Honey Lake Valley; ca. 2 air miles NW of Wendel.
1228
Comment
CHSC64778
Cleome platycarpa
Vernon H. Oswald
1995-5-31
6805
Lassen
Modoc Plateau. Smoke Creek Ranch Rd. 0.6 mi e of Hwy. 395, between Litchfield and Ravendale.
1371
Comment
JEPS79144
Cleome platycarpa
L. R. Heckard with R. Bacigalupi
1980-6-11
5248
Lassen
11.3 mi. n. Litchfield (along U.S. 395, s. of Deep Creek crossing)
1463
Comment
JEPS94360
Cleome platycarpa
Vernon H. Oswald and Lowell Ahart
1997-5-7
8403
Lassen
Smoke Creek Ranch Road 3.4 mi w of California-Nevada State Line; Smoke Creek Ranch Road
1420
Comment
CAS-BOT-BC32957
Cleomella alata
C. C. (Mrs.) Bruce
1898-6-1
2364
Lassen
Shumway
Comment
POM93741A
Cleomella parviflora
Marcus E. Jones
1897-6-24
s.n.
Lassen
10 to 15 miles west from Amedee.
1220
Comment
CHSC108005
Collinsia parviflora
Lowell Ahart; John Dittes
2011-6-20
17487
Lassen
About 15 yards east of the stream, about 40 yards south 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
CHSC116917
Collinsia parviflora
J. P. Bergmann
2011-4-30
Lassen
Fort Sage OHV Recreation Area.
1450
Comment
UC1143037
Collinsia parviflora
L. R. Short
1936-5-7
S 344
Lassen
Lassen National Forest, Burgess Spring Experimental Range Burgess Spring Experimental Range; Lassen National Forest, Burgess Spring Experimental Range
1737
Comment
SEINET10931315
Collinsia parviflora
Katherine L. Morris
1973-5-25
Morris 240
Lassen
Collected 7.6 mi nw of jct of hwy 36 & 44 on hwy 44 in an area of yellow pine And incense cedar; very moist area.
Comment
RSA128300
Collinsia torreyi
Peter H. Raven, Otto T. Solbrig
1958-6-16
13249
Lassen
4.5 miles east of Westwood on Hwy 36.
Comment
UC1143017
Collinsia torreyi var. latifolia
August L. Hormay
1934-6-30
Lassen
Lassen National Forest, Harvey Mountain Harvey Mountain; Lassen National Forest, Harvey Mountain
2133
Comment
RSA523347
Collomia grandiflora
G. H. True
1938-7-9
906
Lassen
Near Horse Lake
1524
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
JEPS94551
Collomia linearis
Vernon Oswald and Lowell Ahart
1997-6-24
8621
Lassen
2.7 mi e of boundary of Lassen National Forest (s of Susanville on n side of Diamond Mountain at an impoundment on edge of Forest Rd 29N43 7.4 mi e of Gold Run Road (29N10)); Diamond Mountain, Forest Road 29N43
2036
Comment
CHSC80232
Collomia tinctoria
Jeanne Boze
1981-6-12
109
Lassen
On hillside along road to 5 corners about 3 mi from Eagle Lake Field Station.
1706
Comment
UC699727
Collomia tinctoria
Farris Farris
1936-6-15
Lassen
Diamond Mountain
1828
Comment
CAS-BOT-BC179604
Comandra umbellata subsp. pallida
G. Schoolcraft
1989-6-7
1908
Lassen
NW slope of Shaffer Mtn. near top
2011
Comment
POM107535
Corallorhiza striata
Marcus E. Jones
1897-6-28
s.n.
Lassen
Diamond Mountain; Susanville; Perkins Ranch.
1829
Comment
JEPS74351
Cordylanthus maritimus subsp. canescens
L. R. Heckard, T. I. Chuang and R. Bacigalupi
1974-7-25
3769
Lassen
4.6 mi n U. S. 395 (along County route A-3 (near old school house, several mi w of Honey Lake); Honey Lake
1219
Comment
UC26324
Cordylanthus maritimus subsp. canescens
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3396
Lassen
Amedee Honey Lake Valley
Comment
UC761797
Cordylanthus ramosus
R. F. Hoover
1940-9-28
4640
Lassen
Leavitt
Comment
CAS-BOT-BC212204
Cornus sericea
Clare B. Hardham
1971-8-22
18903
Lassen
Diamond Mountain
Comment
CAS-BOT-BC212206
Cornus sericea
Philip A. Munz
1947-5-20
11887
Lassen
Laufman Forestry Public Camp Ground above Milford
1524
Comment
RSA38461
Cornus stolonifera
P. A. Munz
1947-5-20
11887
Lassen
Laufman Forestry Public Camp Ground, above Milford.
1524
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
UC1136839
Crepis acuminata
George A. Fischer and Irwin H. Johnson
1933-7-14
F- 266
Lassen
Lassen <National> Forest
1752
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
UC1609226
Crepis modocensis
Vernon H. Oswald and Lowell Ahart
1993-6-28
5614
Lassen
on Rd 33N06 n Hwy 44 (sse flank of mt., nne of Burgess Meadow, ne of Poison Lake); Harvey Mtn.
1798
Comment
UC581246
Crepis modocensis
G. L. Stebbins Jr. and J. A. Jenkins
1937-7-10
2298
Lassen
w Milford (crest of range head of ridge); Stony Ridge
1930
Comment
UC581285
Crepis modocensis subsp. subacaulis
G. L. Stebbins Jr. and J. A. Jenkins
1937-7-10
2278
Lassen
Diamond Mt.; summit and e slope
Comment
CAS-BOT-BC376532
Crepis monticola
G. L. Stebbins, Jr.; J. A. Jenkins
1937-7-6
2193
Lassen
Susanville, just west of the town, on Inspiration Point
Comment
CAS-BOT-BC376557
Crepis occidentalis subsp. conjuncta
A. A. Heller
1938-6-23
15201
Lassen
Valley east of Fredonyer Pass
Comment
UC581317
Crepis occidentalis subsp. costata
G. L. Stebbins Jr. and J. A. Jenkins
1937-7-8
2218
Lassen
6 mi s Ravensdale
1676
Comment
CAS-BOT-BC290750
Crepis occidentalis subsp. occidentalis
Doris Kildale Gillespie
1930-5-12
9337
Lassen
2 miles north of Susanville on road to Alturas
Comment
CAS-BOT-BC376564
Crepis occidentalis subsp. occidentalis
M. S. Taylor
1982-5-29
4562
Lassen
NW corner of the jct of Scott Rd and Hwy 395, ca. 20 mi n of Reno
Comment
CAS-BOT-BC290824
Crepis occidentalis subsp. pumila
David D. Keck; J. Clausen
1935-6-25
3759
Lassen
Susanville
1340
Comment
SEINET3158253
Cressa cretica
M. E. Jones
1897-6-23
sn
Lassen
Amedee
1219
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
UCD59985
Crypsis vaginiflora
P. B. Kennedy
1915-9-1
s. n.
Lassen
Bieber.
Comment
SBBG6231
Cryptantha affinis
H. and M. Dearing
1938-6-30
2226
Lassen
ca. 50 mi W of Susanville
Comment
HSC81480
Cryptantha ambigua
Thomas W. Nelson, Jane P. Nelson
1980-7-6
6016
Lassen
Along Adin-Madeline Rd. 0.5 mi. W of Moll Reservoir.
1585
Comment
UC726048
Cryptantha ambigua
A. A. Heller
1938-6-23
15206
Lassen
e of Mapes (on U.S. Highway 395)
1371
Comment
CHSC5035
Cryptantha circumscissa
L. B. Barlow
1967-7-12
110
Lassen
Vic. Eagle Lake Biological Station, east central side of Eagle Lake.
1554
Comment
CHSC64765
Cryptantha circumscissa
Vernon Oswald
1995-5-24
6785
Lassen
Modoc Plateau. Wendel Rd. (Lassen 320) at milepost 18.5, ca. 1 mi e of Duck Lake Rd.
1219
Comment
CAS-BOT-BC189459
Cryptantha circumscissa var. circumscissa
Elmer I. Applegate
1934-5-4
8933
Lassen
Secret Valley, 20 miles S of Ravendale
Comment
UCD55289
Cryptantha flaccida
Ellen Dean; Gary Schoolcraft
2006-5-16
3110
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.
1260
Comment
CHSC75468
Cryptantha humilis
Vernon H. Oswald; Lowell Ahart
1999-6-19
9743
Lassen
Northeast of Susanville on County Rd. 216 (to Karlo and Biscar Wildlife Management Area) 5.2 mi west of Hwy. 395, 0.2 mi east of the RR crossing at Karlo.
1353
Comment
UC1483850
Cryptantha humilis
G. Schoolcraft
1979-5-13
50
Lassen
on ridge top of Skedaddle mtns. Skedaddle Mtns.
2286
Comment
UC79293
Cryptantha simulans
T. S. Brandegee
1892-6-26
Lassen
Milford
Comment
SEINET10497287
Cryptantha torreyana
Mary Susan Taylor
1974-1
Taylor 280
Lassen
Vicinity of Eagle Lake, ca. 13 mi NW of Susanville.
Comment
JEPS107811
Cryptantha watsonii
Lowell Ahart, John Dittes
2005-6-2
11949
Lassen
Long Valley, along a poor dirt road, about 1 mile northeast of the Anderson Ranch home, about 5 1/2 miles (air) north of the intersection of Scott Road and Highway 70, 6.7 miles (air) northwest of Hallelujah Junction
1498
Comment
SEINET8191424
Cryptantha watsonii
F. B. Headley
1915-5-28
s.n.
Lassen
Honey Lake
Comment
UC1748364
Cupressus bakeri
L. P. Janeway and B. Castro, Loren Gehrung
1999-10-10
6595 B
Lassen
about 0.2 mi SE of Cypress Trailhead into Thousand Lakes Wilderness Area (near Eiler Creek between Fraener Peak and Horse Heaven Buttes); High Cascade Range
1658
Comment
CHSC23497
Cuscuta
Wayne O. Baum
1971-7-14
71 -63
Lassen
Gallatin Peak.
2011
Comment
UCD54418
Cuscuta approximata
Jerry Schmierer
1986-9-1
s.n.
Lassen
Don Blickenstaff Ranch.
Comment
CDA39916
Cuscuta californica var. breviflora
T. C. Fuller
1963-7-16
10922
Lassen
Hwy 395 to Ravendale, 10 miles north of Litchfield.
0
Comment
UC193142
Cycladenia humilis var. humilis
J. G. Lemmon
Lassen
near Shasta (Black Cone); ; Black Cone, near Shasta
Comment
CAS-BOT-BC114167
Cyperus squarrosus
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49512
Lassen
Elysian Valley, W of Janesville.
1325
Comment
CHSC66868
Cyperus squarrosus
Vernon H. Oswald; Lowell Ahart
1996-9-10
8276
Lassen
Mountain Meadows Reservoir SW of Westwood. Along the receding marshy edge of the reservoir between the railroad and Indian Ole Dam.
1539
Comment
UC4436
Cypripedium californicum
Mrs. R. M. Austin
1882-1
Lassen
Mt. Dyer
Comment
SEINET7725892
Cypripedium californicum
Unknown
Lassen
Mt. Dyer
1829
Comment
CAS-BOT-BC70537
Cystopteris fragilis
Clare B. Hardham
1961-6-16
7461
Lassen
Diamond Peak
Comment
CAS-BOT-BC70565
Cystopteris fragilis
Ira L. Wiggins; Dorothy B. Wiggins
1961-6-11
16356
Lassen
near NE end of Eagle lake
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
CHSC29916
Damasonium californicum
Robin L. Ondricek
1978-7-5
83
Lassen
Along the edges of Mahogany Lake.
2057
Comment
CHSC99298
Damasonium californicum
Lowell Ahart; John Dittes
2008-6-20
14941
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
RSA8224
Damasonium californicum
Elmer I. Applegate
1929-6-24
5882
Lassen
Near Bieber.
Comment
UC1100145
Damasonium californicum
Malcolm A. Nobs, Calvin McMillan
1949-6-15
784
Lassen
Nubieber
Comment
UC1483795
Damasonium californicum
G. Schoolcraft
1979-6-26
98
Lassen
Buckthorn Lake n.w. of Pyramid Lake
1889
Comment
UC527
Damasonium californicum
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3335
Lassen
Honey Lake Valley, Susan R.
1219
Comment
UC985942
Damasonium californicum
Herbert L. Mason, Malcolm A. Nobs, and S. Galen Smith
1949-5-29
755
Lassen
on Great Northern R.R. <Nubeiber> (Hwy. 299); , Great Northern R.R.
Comment
CAS-BOT-BC445515
Damasonium californicum
M. S. Taylor
1982-6-12
4647
Lassen
On n side of Susan River (West Fork), s side of hwy 36, at jct with Willow Creek Rd, ca. 8 mi w of Susanville.
1463
Comment
JEPS124716
Damasonium californicum
B. Corwin
1964-7-1
123
Lassen
Under bridges between Bieber and New Bieber on rte. 299.
Comment
CAS-BOT-BC189863
Danthonia californica
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49487
Lassen
Sierra Nevada. Elysian Valley, west of Janesville.
1325
Comment
UC53341
Danthonia californica
M. S. Baker and Frank Nutting
1894-7-2
Lassen
Pine Creek
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
HSC69064
Danthonia unispicata
Gary Schoolcraft
1980-7-28
332
Lassen
Meadow E of Tule Mountain.
2043
Comment
UC1024799
Danthonia unispicata
Leo Whitney
1935-6-24
3298
Lassen
ca 13 mi w north end of Eagle Lake; Squaw Valley
Comment
UC1609107
Danthonia unispicata
Vernon H. Oswald and Lowell Ahart
1993-6-28
5579
Lassen
Harvey Valley Rd. (33N02) 0.2 mi n Hwy 44 (e side of valley, e of Poison Lake); Grays Valley
1749
Comment
UCD61076
Danthonia unispicata
L. Whitney
1935-6-24
Lassen
Ashurst Mt., N of Harvey Valley, ca. 35 mi. NW of Susanville.
Comment
UCD61297
Danthonia unispicata
F. C. Raney
1966-6-25
Lassen
Harvey Valley, Lassen National Forest.
Comment
JEPS79213
Delphinium
L. R. Heckard with R. C. Bacigalupi
1980-6-12
5254
Lassen
ne Westwood (near golf course)
1554
Comment
JEPS79214
Delphinium
L. R. Heckard with R. C. Bacigalupi
1980-6-12
5254
Lassen
ne Westwood (near golf course)
1554
Comment
CAS-BOT-BC1425
Delphinium andersonii
A. A. Heller
1938-6-23
15217
Lassen
Along U.S. Highway #395 between Termo and Madeline
Comment
CHSC106590
Delphinium andersonii
C. Dow; D. Garrison
2008-5-3
Lassen
Fort Sage Mtns. OHV Trailhead and Trail to Indian Springs.
1439
Comment
UC726248
Delphinium andersonii
A. A. Heller
1938-6-23
15217
Lassen
flat along US Hwy 395 between Termo and Madeline
1524
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
CHSC6242
Delphinium glaucum
A. Santos
1946-6-20
Lassen
Eagle Lake. Grasshopper Valley.
1624
Comment
UC726275
Delphinium nudicaule
A. A. Heller
1940-5-22
15663
Lassen
hill back of Westwood Cemetery (station several mi w of type station)
Comment
UC499813
Delphinium nuttallianum
Elmer I. Applegate
1929-6-21
5780
Lassen
between Drakesbad and Kelley's Camp; Warner Valley
Comment
CAS-BOT-BC116049
Delphinium nuttallianum
M. M. Hanna
1956-6-3
910 -913
Lassen
Grassy slope above Hiway 299. 87.3 mi. E. of Redding, Calif.
Comment
CAS-BOT-BC116053
Delphinium nuttallianum
Mrs. H. C. Cantelow
1941-5-22
s.n.
Lassen
West slope, Fredonyer Pass, 13.5 miles west of Susanville
1554
Comment
HSC27055
Delphinium nuttallianum
John Pratt
1970-6-11
5
Lassen
Fredonyer Pass
1738
Comment
CAS-BOT-BC194265
Deschampsia cespitosa subsp. cespitosa
George W. Gillett
1957-7-22
876
Lassen
Snag Lake, margin of gravel bars 100 yards above lake near south shore - Lassen Volcanic National Park
1850
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
UC506928
Deschampsia cespitosa subsp. cespitosa
George A. Fischer and Irwin H. Johnson
1933-7-14
F 244
Lassen
Patterson Flat Lassen Forest, Patterson Flat
1737
Comment
CAS-BOT-BC192742
Deschampsia danthonioides
Louella Bass
1973-5-29
EU 57
Lassen
Elysian Valley
1325
Comment
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
POM114878
Deschampsia danthonioides
Marcus E. Jones
1897-6-30
s.n.
Lassen
Eagle Lake, 27 miles from Susanville.
1524
Comment
RSA185317
Deschampsia danthonioides
Clare B. Hardham
1961-6-17
s.n.
Lassen
Baxter Creek, south of Susanville
1677
Comment
CAS-BOT-BC201812
Deschampsia elongata
Clare B. Hardham
1971-8-22
18375
Lassen
Diamond Mountain
2346
Comment
UC1131561
Deschampsia elongata
A. Simontacchi
1940-7-3
919
Lassen
3.5 mi. w.-s.w. Harvey Mt. Lookout; Lassen Nat'l Forest, Halls Flat Quad.
Comment
UCD63431
Deschampsia elongata
L. Whitney
1933-8-3
Lassen
Slate Creek.
1920
Comment
UCD63522
Deschampsia elongata
Malcolm A. Knobs; S. Galen Smith
1949-7-21
1058
Lassen
4 miles N of Madeline.
Comment
UC1542918
Descurainia californica
G. Schoolcraft and B. Ertter
1987-6-16
1747
Lassen
Skedaddle Mtns.
1828
Comment
UC1609092
Descurainia incisa subsp. filipes
Vernon H. Oswald and Lowell Ahart
1993-7-8
5656
Lassen
ne edge Poison Lake (1.9 mi n of Hwy 44, Pittville Rd (Lassen 111, 36N01), ridge between railroad and lake)
1709
Comment
CAS-BOT-BC43089
Descurainia nelsonii
John Thomas Howell
1934-7-7
12476
Lassen
Harvey Valley.
Comment
CAS-BOT-BC43164
Descurainia pinnata subsp. brachycarpa
John Thomas Howell
1976-7-20
52023
Lassen
Sierra Nevada. Bottom flatas along Willard Creek near its confluence with Susana River.
1432
Comment
CHSC5236
Descurainia sophia
P. Balch
1955-7-18
Lassen
Stafford's Resort, Eagle Lake.
1615
Comment
CAS-BOT-BC292259
Dieteria canescens
John Thomas Howell
1974-7-8
50470
Lassen
Susanville
1295
Comment
HSC82268
Dieteria canescens var. canescens
Thomas W. Nelson, Jane P. Nelson
1980-7-6
5996
Lassen
Along Adin-Madelin Rd., 16 mi. E of Adin in Ash Valley
1555
Comment
UC73995
Dieteria canescens var. canescens
J. Burtt Davy
Jun 17 1897-Jun 24 1897
Lassen
Amedee Honey Lake Valley
Comment
CHSC98341
Dieteria canescens var. shastensis
B. Castro; L. P. Janeway
2005-7-10
1504
Lassen
Northern High Sierra Nevada. Ca 1-2 mi E of Westwood, on N side of Hwy 36. In flat open ridge area within Jeffrey pine/Pondersosa pine forest. Township/Range approximate location.
1566
Comment
JEPS30487
Dieteria canescens var. shastensis
Peter H. Raven with Otto T. Solbrig
1958-6-15
13244
Lassen
5.7 mi w Westwood (on State Highway 36)
Comment
UC1536890
Dieteria canescens var. shastensis
G. H. True Jr.
1936-6-25
532
Lassen
flats e of Harvey Ranger Station; Harvey Valley
1706
Comment
HSC103593
Dieteria canescens var. shastensis
Thomas W. Nelson, Jane Nelson
1986-6-23
8140
Lassen
Along State Route 44, 10.9 mi. SE of Old Station junction.
1585
Comment
CAS-BOT-BC153675
Diplacus mephiticus
M. S. Baker; Frank Nutting
1894-7-12
s.n.
Lassen
Pine Creek
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
CHSC68877
Diplacus mephiticus
Vernon Oswald; Lowell Ahart
1997-6-24
8597
Lassen
South of Susanville on the north side of Diamond Mtn. on Forest Rd. 29N43, 1.2 miles east of Gold Run Rd.
1685
Comment
CAS-BOT-BC151430
Diplacus nanus
H. D. Ripley; R. C. Barneby
1944-5-30
5977
Lassen
Mouth of Madeline - Sierra Nevada
1706
Comment
RSA0011496
Dipsacus fullonum
R. F. Thorne, Larry E. DeBuhr
1975-8-22
46971
Lassen
Along Highway 395 ca. 6 miles north of Madeline and 4.5 miles south of Modoc county line.
1616
Comment
CAS-BOT-BC208724
Distichlis spicata
Ira L. Wiggins; Dorothy B. Wiggins
1961-6-11
16339
Lassen
On dam forming reservoir north of road 13.5 mi. E of Susanville
Comment
CAS-BOT-BC208726
Distichlis spicata
Malcom A. Nobs; S. Galen Smith
1949-7-22
1069
Lassen
Northeast shore of Eagle Lake on drying shore.
Comment
SEINET10929826
Distichlis spicata var. stricta
Alan A. Beetle
1941-6-28
Beetle 2807
Lassen
6 miles south of Ravendale, lower slopes of Observation Peak, open meadow. Assoc. Stipa pulchra, Hordeum, Koeleria cristata.
Comment
UC1553397
Dodecatheon conjugens
G. Schoolcraft
1988-4-25
1783
Lassen
Ash Valley RNA/ACEC 16 mi e Adin; Ash Valley RNA/ACEC e of Adin
1554
Comment
UC1609465
Dodecatheon conjugens
Vernon H. Oswald and Lowell Ahart
1993-5-12
5381
Lassen
Forest Rd. 32N08 to Crater Lake 0.5 mi ne Hwy 44 (between A21 (to Westwood) and Poison Lake, edge of meadowy opening along creek); Pine Creek
1737
Comment
RSA59710
Dodecatheon conjugens
E. K. Balls
1950-5-18
14766
Lassen
Above Ash Creek Public Camp., off rd. from Adin to Madeline.
1616
Comment
SEINET8561548
Dodecatheon conjugens
M. J. Williams
1969-5-24
s.n.
Lassen
Ca 0.5 mile N of Bogart Ranger Station.
Comment
CHSC4763
Downingia bacigalupii
R. Carter
1967-7-16
622
Lassen
Growing in drying vernal pool along side rd.
Comment
UCD33603
Downingia bacigalupii
Beecher Crampton
1970-6-26
8637 a
Lassen
Lassen County, ca. 5 miles west of Susanville.
1524
Comment
UCR119111
Downingia bacigalupii
Beecher Crampton
1970-6-26
8637 a
Lassen
Modoc Plateau, 5 miles west of Susanville.
1448
Comment
RSA113687
Downingia bacigalupii
H. K. Sharsmith
1955-6-27
4512
Lassen
Adjacent to State Highway 299 near Fall River Mills, Lassen National Forest
1220
Comment
CHSC59527
Downingia bicornuta
Mary Meyer
1980-7-9
506
Lassen
Horse Camp Springs, down-stream in cow pod.
1706
Comment
SBBG69660
Downingia bicornuta
S. W. Hutchinson
-Jun-1925
492
Lassen
near Eagle Lake
1554
Comment
POM260453
Downingia bicornuta
C. L. Hitchcock
1940-5-26
6645
Lassen
Overflow of Pitt River, 1 mile W of Bieber.
Comment
JEPS22792
Downingia bicornuta var. bicornuta
Robert W. Gardner
1936-1
Lassen
Poison Lake (Poison Lake is about 6 mi se of Halls Flat R.S. in sw Lassen County--R. Bacigalupi, 1957) Poison Lake
1676
Comment
JEPS22793
Downingia bicornuta var. bicornuta
August L. Hormay
1934-5-15
Lassen
1 mi ne Halls Flat Railroad Station (on the Keddie-Nubieber (freight) branch of the W.P.R.R.)
1554
Comment
UC1101473
Downingia bicornuta var. bicornuta
Herbert L. Mason and Verne Grant
1947-7-9
13291
Lassen
5 mi e Bieber
Comment
SJSU3174
Downingia insignis
J. W. Tilden
1958-6-27
1290
Lassen
Madeline
Comment
UC1188739
Downingia insignis
John H. Weiler, L. Constance, and E. Molseed
1960-6-13
60163
Lassen
1.7 mi s Ravendale (w side of U.S. Highway 395)
Comment
UC1520665
Downingia insignis
Noel H. Holmgren and Patricia K. Holmgren
1978-6-10
8902
Lassen
9 mi ene (8 mi air distance) Termo; Madeline Plains, Coyote Flat
1630
Comment
SEINET10702760
Downingia insignis
David B. Dunn
1956-7-3
Dunn 11924
Lassen
Alkaline sink by roadside, extra runoff from Hwy. 395. 11 mi. S of Madeline.
Comment
CAS-BOT-BC266471
Downingia laeta
Wm. Anderson
1960-6-16
s.n.
Lassen
Along county road 0.25 mile S of Mapes Ranch, Honey Lake Valley
Comment
CAS-BOT-BC266473
Downingia laeta
Malcom A. Nobs; S. Galen Smith
1949-7-20
1047
Lassen
Bieber, along Highway 299
Comment
CHSC99496
Downingia laeta
Lowell Ahart; John Dittes
2008-6-20
14928
Lassen
Bottom of 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
RSA0035918
Downingia laeta
Lowell A. Ahart, John Dittes
2008-6-20
14928
Lassen
About 100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
1263
Comment
UC1188737
Downingia laeta
John H. Weiler, L. Constance, and E. Molseed
1960-6-13
60164
Lassen
1.7 mi s Ravendale (at w side of U.S. Hwy 395)
1615
Comment
CHSC61140
Draba verna var. aestivalis
Vernon H. Oswald; Lowell Ahart
1993-5-12
5391
Lassen
Butte Lake Rd., 1.4 mi S of Hwy. 44, between Old Station and Poison Lake. Along the road.
1652
Comment
JEPS107454
Draba verna var. aestivalis
Lowell Ahart, John Dittes
2005-6-1
11901
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
CHSC96701
Drosera anglica
Gordon Leppig; J. Cromwell
1997-7-27
609
Lassen
Modoc National Forest, Blue Lake Ranch. Peatland i ... Field redacted by CHSC, contact the data manager for more information
1970
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
CHSC112989
Elatine
Lowell Ahart; John Dittes
2013-7-23
18890
Lassen
Around a man made pond, about 150 yards northwest of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
CHSC116201
Elatine californica
Lowell Ahart; John Dittes
2015-7-13
20296
Lassen
About 400 yards south of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
RSA0011453
Eleocharis
Robert F. Thorne, Larry E. DeBuhr
1975-8-22
46985
Lassen
Along Highway 395 ca. 6 miles north of Madeline and 4.5 miles south of Modoc county line
1616
Comment
CHSC112770
Eleocharis acicularis
Lowell Ahart; John Dittes
2013-7-22
18880
Lassen
Drainage filled with dirt from construction of a pond, 40 yards south of the man made pond, about 110 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
JEPS120126
Eleocharis macrostachya
Lowell Ahart, John Dittes
2012-7-9
18293
Lassen
About 100 yards southeast of the tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
Comment
RSA0039534
Eleocharis macrostachya
Lowell A. 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
CAS-BOT-BC112848
Eleocharis macrostachya
R. K. Gierisch
1968-7-12
3359
Lassen
Hwy 36, 1 mi E of Fredonyer Pass.
1706
Comment
RSA127038
Eleocharis quinqueflora
Robert W. Gardner
1939-6-15
G- 36
Lassen
Little Harvey Valley
1700
Comment
CAS-BOT-BC221829
Elymus canadensis
Marcus E. Jones
1897-6-19
s.n.
Lassen
Chat
1615
Comment
CHSC111247
Elymus cinereus
B. Castro; L. P. Janeway
2012-7-2
1937
Lassen
Modoc Plateau. 32 air mi due E of Susanville, 12 mi E of Hwy 395 and 3 mi W of the NV border. East side of Skedaddle Mountains; corral at 'Skedaddle Ranch.
1577
Comment
SEINET12737887
Elymus cinereus
M. Church
2016-7-26
14
Lassen
Between Hwy 395 and Petersen Mountain, N of Hallelujah Junction.
1412
Comment
CAS-BOT-BC227492
Elymus elymoides
Louella Bass
1973-6-3
EU 97
Lassen
Elysian Valley
1325
Comment
SEINET10527886
Elymus elymoides
Paul Gallian, David B. Dunn
1971-6-2
Gallian 515
Lassen
6 mi N of Hallelujah Jct on US hwy 395, in Artemesia tridentata, Jeffery pine, along high ridge & in sandy wash.
1402
Comment
CHSC30616
Elymus elymoides subsp. elymoides
M. A. Dubin
1975-7-20
10
Lassen
Eagle Lake Field Station, 200 yards north of classroom.
1569
Comment
UC1136930
Elymus elymoides subsp. elymoides
George A. Fischer and Irwin H. Johnson
1933-7-12
F 214
Lassen
Lassen <National> Forest
1722
Comment
JEPS126495
Elymus elymoides var. californicus
Alia Johnson, Jocelyn Munoz, Jillian Sarazen
2016-6-28
CA 350 -72
Lassen
Heading north on 395 turn right on to Smoke Creek Road and drive up the road towards the uphill to where the Rush fire burned.
Comment
JEPS128171
Elymus elymoides var. californicus
M. C. Mahoney, J. A. Nash
2017-7-31
CA 350 -86
Lassen
On Fredonyer Peak. From Susanville take Highway 139 N towards Eagle Lake and turn right following signs for Fredonyer Peak Fire Lookout. Towards the top, stay right at both forks in the road. Follow the road past the last fork for two miles. Population is on both sides of the road.
Comment
UC7793970
Elymus glaucus
L. R. Short and Wm. Gansberg
1936-7-3
S- 470
Lassen
Burgess Spring Experiment Range Lassen <National> Forest
1859
Comment Read comments Aug 1 2007
CAS-BOT-BC206734
Elymus glaucus subsp. glaucus
John Thomas Howell; Gordon H. True
1973-8-1
50179
Lassen
Gold Run Creek south of Susanville, Diamond Range - Sierra Nevada
1584
Comment
UCD62558
Elymus repens
John Thomas Howell
1973-7-10
49791
Lassen
Susanville. In city park.
Comment
UC1037126
Elymus trachycaulus
Leo Whitney
3261 b
Lassen
Fruit Grower's Supply Co. Camp 10 Lassen National Forest (dry creek)
Comment
UC188858
Elymus trachycaulus
Milo S. Baker
Lassen
mts. s Dixie Valley
Comment
UCD62664
Elymus trachycaulus
L. Whitney
1935-6-24
Lassen
Squaw Valley.
Comment
CAS-BOT-BC204360
Elymus trachycaulus subsp. trachycaulus
J. Burtt Davy
1897-6-17
s.n.
Lassen
Honey Lake Valley
Comment
JEPS123855
Elymus trachycaulus subsp. trachycaulus
Lowell Ahart, John Dittes
2015-7-14
20332
Lassen
About 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
Comment
SEINET12758322
Elymus triticoides
D. Snider
1942-8-30
s.n.
Lassen
Pine Creek Camp.
1524
Comment
NY70804
Ephedra viridis
D. W. McNeal
1980-6-1
2337
Lassen
Above Highway 139, 5.4 miles north of the junction of Highway 36 in Susanville
Comment
UCR67446
Ephedra viridis
George K. Helmkamp
1990-9-23
B- 17
Lassen
Northern Sierra Nevada Mountains, 3 mi east of Susanville, along State Road 36
1345
Comment
UC1136768
Epilobium brachycarpum
George A. Fischer and Irwin H. Johnson
1933-7-12
F 191
Lassen
Dry Lake Lassen National Forest, Grass Valley
1694
Comment
UC1537612
Epilobium brachycarpum
Gordon H. True Jr.
1936-6-26
550
Lassen
head of creek 2 mi e Eagle Lake; Willow Creek
1584
Comment
UC507002
Epilobium brachycarpum
George A. Fischer and Irwin H. Johnson
1933-7-12
F 191
Lassen
Dry Lake Lassen National Forest, Grass Valley
1694
Comment
HSC16337
Epilobium brachycarpum
M. T. Milligan
1964-8-23
237
Lassen
Above Eagles Nest on main road, Eagle Lake
1829
Comment
HSC22866
Epilobium brachycarpum
John Pratt
1970-6-14
17
Lassen
Comment
NY999879
Epilobium brachycarpum
W. W. Eggleston
1910-9-3
6309
Lassen
Vicinity of Doyle Station
1240
Comment
JEPS121248
Epilobium campestre
Lowell Ahart, John Dittes
2013-7-22
18850
Lassen
About 30 yards S of the man-made pond, about 120 yards south of the four tall poles, Ash Creek Wildlife Area, about 5.5 air miles northeast of Bieber, Big Valley.
Comment
UC303060
Epilobium canum subsp. latifolium
Pearl Safford
111
Lassen
Susanville [uncertain locality]
Comment
JEPS121238
Epilobium ciliatum subsp. ciliatum
Lowell Ahart, John Dittes
2013-7-22
18856
Lassen
30 yards S of the man-made pond, about 120 yards N of the four tall poles, Ash Creek Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley.
Comment
UC20216
Epilobium ciliatum subsp. ciliatum
M. S. Baker and Frank Nutting
1894-7-25
Lassen
Willow Creek
Comment
CHSC63405
Epilobium hallianum
Vernon H. Oswald; Beth Corbin, Michael Dolan
1994-6-18
6317
Lassen
Cold Springs near Clarks Valley Rd. (Lassen 510) ca. 11 mi E of Madeline. In a meadow.
1871
Comment
UC1924229
Epilobium hallianum
Debra Valov
2005-8-19
2005218
Lassen
Eagle Lake; Hwy 139, Mi. marker 25
1554
Comment
HSC95313
Epilobium oregonense
Gordon Leppig, Juli Neander, Kai Neander
1997-7-26
688
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
CHSC96704
Epilobium palustre
Gordon Leppig; T. LaBanca, L. Arguello
1997-6-29
538
Lassen
Modoc National Forest, Blue Lake Ranch. Peatland in large meadow complex.
1970
Comment
HSC95344
Epilobium palustre
Gordon Leppig, Tony LaBanca, Leonel Arguello
1997-6-29
538
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
CHSC99141
Epilobium torreyi
Lowell Ahart; John Dittes
2008-6-19
14878
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
HSC82195
Epilobium torreyi
Thomas W. Nelson, Jane P. Nelson
1980-7-6
6050
Lassen
Along Ash Creek at Ash Creek Campground
1494
Comment
CAS-BOT-BC57305
Equisetum laevigatum
Clare B. Hardham
1969-8-28
17458
Lassen
west of Janesville
Comment
CHSC25085
Equisetum laevigatum
K. R. Stern
1967-7-1
2465
Lassen
Murrer Ranch, ca. 17 mi. NE of Susanville.
Comment
CHSC66369
Equisetum laevigatum
Vernon H. Oswald; Lowell Ahart
1996-6-17
7820
Lassen
Modoc Plateau. Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville. At the 6.0 mile post E of Devils Corral Trailhead.
1420
Comment
JEPS88087
Equisetum laevigatum
Vernon H. Oswald and Lowell Ahart
1996-6-17
7820
Lassen
ca. 7 mi w Susanville (Bizz Johnson Trail accessed at Devils Corral Trailhead off Hwy. 36, at 6 mi post of Devil's Corral Trailhead); Modoc Palteau
1420
Comment
UC62615
Equisetum laevigatum
Baker and Nutting
1894-7-5
Lassen
<Dixay> Valley
1066
Comment
CAS-BOT-BC57301
Equisetum laevigatum
Barbara Shervanick
1974-5-7
1262
Lassen
Highway 395, just south of Milford, Cascade Range
1371
Comment
CHSC77263
Eragrostis cilianensis
G. Schoolcraft
1997-8-20
2700
Lassen
Safeway parking lot in Susanville.
1264
Comment
CAS-BOT-BC284042
Eragrostis minor
John Thomas Howell
1976-7-19
51942
Lassen
Susanville, Sierra Nevada
1287
Comment
NY1057003
Eremogone congesta var. simulans
B. J. Ertter
1987-6-16
7193
Lassen
Skeedaddle Mountains on northeast side of Honey Lake; saddle on east side of Hot Springs Peak
2195
Comment
NY1057004
Eremogone congesta var. simulans
A. J. Cronquist
1959-6-17
8463
Lassen
50 miles southeast of Susanville
Comment
CHSC118851
Eremogone congesta var. subcongesta
L. P. Janeway; B. Castro
2015-6-5
11763
Lassen
Great Basin, Modoc Plateau. Along the road from the south end of Surprise Valley toTuledad Canyon, 7.4 road-km south ofSurprise Valley Road; 1.4 air-km northwest of Mahogany Mtn.
1731
Comment
CHSC68745
Eremogone congesta var. subcongesta
Vernon H. Oswald; Lowell Ahart
1997-5-27
8485
Lassen
East side of Hwy. 139 at a small farm pond 38.2 mi north of Susanville, 7.4 mi north of Eagle Lake Rd.
1627
Comment
CHSC72310
Eremogone congesta var. subcongesta
L. P. Janeway; Glenn Clifton
1998-7-9
5730
Lassen
Ridgetop saddle, 1.0 mi east of Diamond Mtn.
2215
Comment
SJSU3559
Eremogone congesta var. subcongesta
V. Hardham
1965-7-12
129
Lassen
Willow Cr c. 13 mi SE of Adin (Siskiyou Co) on State Rte 139, Modoc National Forest
1463
Comment
CAS-BOT-BC159991
Eremothera boothii subsp. alyssoides
Arnold Tiehm
1980-5-29
5754
Lassen
North end of Honey Lake Valley, 2 air miles NW of Wendel
1231
Comment
CAS-BOT-BC159993
Eremothera boothii subsp. alyssoides
A. A. Heller
1938-6-23
15212
Lassen
North of Balls Canyon on U. S. Highway #395
Comment
UCD150407
Eremothera boothii subsp. alyssoides
William Anderson
1963-6-2
s.n.
Lassen
Wendel.
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
CHSC34596
Eriastrum signatum
Robert A. Schlising
1978-7-1
3298
Lassen
E of Eagle Lake, NE of Eagle L. Field Station. On lava flow from Black Mt.
1584
Comment
CHSC6201
Eriastrum signatum
M. West
1946-7-2
Lassen
Spalding's, Eagle Lake.
1554
Comment
CDA39986
Eriastrum signatum
T. C. Fuller
1980-8-6
20323
Lassen
0.2 km south of Smoke Creek Ranch Road, 2 km west of the state line, 28.8 km (18.6 miles) northeast of Highway 395, northeast of Ravendale.
0
Comment
JEPS103167
Eriastrum signatum
Beth Corbin
2002-10-2
1115
Lassen
Grasshopper Valley, S of Termo-Grasshopper Road.
1633
Comment
NY1012886
Eriastrum sparsiflorum
W. W. Eggleston
1911-7-8
7191
Lassen
Vicinity of Doyle Station
1290
Comment
JEPS14040
Eriastrum wilcoxii
Rimo Bacigalupi with G. T. Robbins
1955-7-21
5418
Lassen
along Smoke Creek rd. 6.8 mi e U.S. Highway 395 (s edge of valley); Secret Valley
Comment
JEPS69071
Eriastrum wilcoxii
W. L. Jepson
1918-8-2
7792
Lassen
Long Valley
1219
Comment Read comments Nov 7 2008
CAS-BOT-BC286607
Ericameria bloomeri
Gary Schoolcraft
1984-8-21
1367
Lassen
Eastern slopes of Fredonyer Mtn. 33-12-35
2072
Comment
SEINET10723416
Ericameria bloomeri
Karen M. Meyer, Andrew Townesmith
2007-7-23
Meyer 155
Lassen
Lassen National Forest. 6 miles SW on 32N10 off Hwy. 44. (Turn at rest area on Hwy. 44). At junction of 32N10, 32N09 and 31N36.
1993
Comment
UC1136849
Ericameria bloomeri
L. R. Short and J. Warren
1936-8-17
S- 497
Lassen
Burgess Spr. Exp. Range Lassen Forest
1767
Comment
CHSC23484
Ericameria nauseosa
Wayne O. Baum
1971-7-29
71 -57
Lassen
Slope of Gallatin Peak.
1981
Comment
CAS-BOT-BC298179
Ericameria nauseosa var. oreophila
John Thomas Howell
1924-8-13
s.n.
Lassen
Near Doyle
Comment
UCD54569
Ericameria nauseosa var. oreophila
Ellen Dean; Dawn Cunningham
2005-10-25
2752
Lassen
East of the town of Susanville. Property N of California Correctional Facility.
1248
Comment
CAS-BOT-BC294182
Ericameria nauseosa var. speciosa
Margaret Williams
1974-8-4
74 -L-71
Lassen
Near Hallelujah Junction, west of Hwy 395 and south of Hwy 70
1493
Comment
CAS-BOT-BC299483
Ericameria nauseosa var. washoensis
Gary Schoolcraft
1984-8-27
1369
Lassen
Upper Tuledad Canyon
1676
Comment
SEINET8198339
Ericameria parryi var. parryi
D. W. Taylor
2002-8-10
18310
Lassen
Plumas National Forest Road 24N02X 1.2 air miles from Constantina Road, East slope Diamond Mountains (ca. 4 air miles South of Doyle)
1433
Comment
CHSC78479
Ericameria suffruticosa
Vernon H. Oswald
2000-7-31
9946
Lassen
Spur road leading from Forest Road 28N15 to the small pond on the crest of Diamond Mountain.
2215
Comment
UC1561814
Erigeron aphanactis var. aphanactis
Barbara Ertter with Gary Schoolcraft
1987-6-16
7176
Lassen
on ne side Honey Lake (e of road over saddle on w side of range); Skeedaddle Mountains
1645
Comment
CAS-BOT-BC294491
Erigeron bloomeri var. bloomeri
Doris Kildale Gillespie
1930-5-13
9364
Lassen
Between Susanville and Janesville
Comment
CHSC117135
Erigeron bloomeri var. bloomeri
L. P. Janeway; B. Castro
2015-6-5
11759
Lassen
Great Basin, Modoc lateau. Along the road from the south end of Surprise Valley to Tuledad Canyon, 7.4 road-km south of Surprise Valley Road; 1.4 air-km northwest of Mahogany Mtn.
1731
Comment
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
CHSC67162
Erigeron bloomeri var. bloomeri
James D. Jokerst
1991-5-29
3315
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
CHSC67463
Erigeron bloomeri var. bloomeri
James D. Jokerst
1991-5-29
3315
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 rodge N of drainage.
1584
Comment
JEPS117490
Erigeron bloomeri var. bloomeri
Lowell Ahart, John Dittes
2010-7-31
17010
Lassen
About 2,300 feet north of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin
1510
Comment
UCR45383
Erigeron bloomeri var. bloomeri
Thomas W. Nelson, Jane P. Nelson
1980-7-6
6034
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
CAS-BOT-BC294484
Erigeron bloomeri var. bloomeri
G. Schoolcraft
1998-6-30
2745
Lassen
N. end of Ft. Sage Mtns.
1950
Comment
CAS-BOT-BC294493
Erigeron bloomeri var. bloomeri
Ella Dales Cantelow
1941-5-22
3566
Lassen
Few mi. n. of Litchfield. U.S. Hy. 395 to Alturas
Comment
RSA636042
Erigeron bloomeri var. bloomeri
Michael A. Vincent
1999-6-9
8583 b
Lassen
Along US Rt. 395, south of Ravendale Fire Station, 1.8 miles north of rest area, and 24.8 miles north of Litchfield.
1524
Comment
CHSC23483
Erigeron cervinus
Wayne O. Baum
1971-7-12
71 -58
Lassen
Slope of Gallatin Peak.
2042
Comment
CAS-BOT-BC297196
Erigeron coulteri
Clare B. Hardham
1971-8-22
18398
Lassen
Diamond Mountain
2133
Comment
CHSC65297
Erigeron divergens
Vernon H. Oswald; Lowell Ahart
1995-8-14
7193
Lassen
Modoc Plateau. Horse Lake Rd. (Lassen 536) 2.5 mi W of Hwy. 395 at a small stream, N of Susanville.
1676
Comment
JEPS41774
Erigeron divergens
W. L. Jepson
1918-8-2
7778
Lassen
Beckwith Pass
1463
Comment
JEPS84932
Erigeron divergens
Barbara Ertter
1987-7-24
7303
Lassen
ca .75 mi ene Beckwourth Pass (at end of old crumbling paved road)
1524
Comment
CAS-BOT-BC296899
Erigeron eatonii var. eatonii
A. M. Vollmer; L. Beane
1953-7-1
50
Lassen
Along Halls Flat road, beginning 6 miles west of Susanville to McArthur
1554
Comment
CHSC89752
Erigeron eatonii var. plantagineus
L. P. Janeway
2004-6-26
8156
Lassen
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
JEPS100338
Erigeron eatonii var. plantagineus
Dean W. Taylor
2001-7-19
17844
Lassen
Diamond Mountains, ridgecrest ca. 1 air mile South of Doyle Grade
2072
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
UC1136837
Erigeron eatonii var. plantagineus
L. R. Short
1936-5-22
S- 350
Lassen
Burgess Spr. Exp. Range Lassen <National> Forest
1859
Comment
CHSC112185
Erigeron elegantulus
Dean Wm. Taylor
2012-6-7
21227
Lassen
Modoc Plateau. Grass Valley; Grasshopper Valley Road 2.3 road miles E of junction with Highway 139.
1635
Comment
CHSC68735
Erigeron elegantulus
Vernon H. Oswald; Lowell Ahart
1997-5-27
8492
Lassen
West side of Hwy. 139 south of Willow Creek Guard Station, 0.9 mi south of Forest Road 38N04 to Coyote Flat. Along road and adjacent slope.
1577
Comment
CAS-BOT-BC295183
Erigeron inornatus
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49515
Lassen
Elysian Valley, west of Janesville
1325
Comment
CAS-BOT-BC295181
Erigeron inornatus
John Thomas Howell
1974-7-10
50516
Lassen
Janesville
1295
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
CAS-BOT-BC295472
Erigeron lassenianus var. lassenianus
Parkison
1916-6-21
40
Lassen
Lassen National Forest. Near Patterson Cabin
1706
Comment
HSC63770
Erigeron linearis
Teresa Prendusi
1980-5-20
Lassen
Snowstorm Mtn. along spring area and 4 mi. W of Hwy. 395
1524
Comment
SD9017
Erigeron nivalis
Mrs. R. M. Austin
1882-8-10
Lassen
Lassen Peak
Comment Read comments Apr 29 2013
POM32998
Erigeron philadelphicus
Marcus E. Jones
1897-6-30
s.n.
Lassen
Susanville, 4 miles below Eagle Lake.
1524
Comment
RSA59554
Erigeron pumilus subsp. intermedius
E. K. Balls
1950-5-22
14829
Lassen
1.5 mile SE of Milford, Hwy. 395, above Honey Lake
1280
Comment
CHSC86949
Erigeron pumilus var. intermedius
L. P. Janeway
2001-6-19
7187
Lassen
High Cascade Range. Southeast edge of Long Lake (which is dry) at west end of Long Valley; 6.4 km north-northwest of Harvey Mountain.
1640
Comment
UC1567402
Erigeron pumilus var. intermedius
G. Schoolcraft
1989-6-19
1916
Lassen
Ash Valley RNA/ACEC , Susanville
1554
Comment
CAS-BOT-BC300119
Erigeron pumilus var. intermedius
Clare B. Hardham
1961-6-17
7504
Lassen
Sierra Nevada Mountains. Baxter Creek
1676
Comment
NY243318
Eriogonum baileyi
G. Schoolcraft
1985-7-29
1490
Lassen
Western slopes of Ft. Sage Mtns.
1402.1
Comment
UCD99771
Eriogonum baileyi
Margaret Williams; Steven Williams
1974-7-26
74- 4 -
Lassen
near Hallelujah Junction, west of Hwy 395 and south of Hwy 70.
1493
Comment
CHSC7738
Eriogonum caespitosum
Beverley J. Wise
1969-5-3
78
Lassen
3.4 mi east of junction with Hwy 395 on Las. Co. Rd. 338 (Smoke Creek Road).
1584
Comment
SEINET8513012
Eriogonum caespitosum
A. Rosenblum, A. Ortega, O. Schilling, M. Gray
2015-6-24
s.n.
Lassen
Constantia Allotment, West of Peterson's
1490
Comment
CAS-BOT-BC241835
Eriogonum caespitosum
Pauleen Broyles
1977-5-30
150
Lassen
Ca. 1.6 km se of South Fork Reservoir and 1.6 km n of Skedaddle Creed [Creek] Road, ca 8 km ne of Herlong
1660
Comment
RSA509426
Eriogonum douglasii
G. R. Ballmer
1988-7-19
s.n.
Lassen
Warner Mountains, vicinity of Blue Lake
1738
Comment
CAS-BOT-BC246501
Eriogonum douglasii var. meridionale
Brandegee
1892-7-2
s.n.
Lassen
Susanville
Comment
CAS-BOT-BC246503
Eriogonum douglasii var. meridionale
John Thomas Howell; Gordon H. True; Wayne Dakan
1974-7-30
50662
Lassen
Summit ridge of Diamond Mt.
2346
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
SEINET10479490
Eriogonum elatum
Taylor
1982-8-27
Taylor 5055
Lassen
T24N R17E sw/sw sec 7. Constantia quad. Crystal Peak summit area, Diamond Mts, ca. 6 air mi sw of Doyle. 7800 ft.
Comment
CAS-BOT-BC246511
Eriogonum elatum var. elatum
Margaret Williams
1974-7-27
74 -L-45
Lassen
Near Hallelujah Junction, west of Hwy 395 and south of Hwy 70
1493
Comment
CAS-BOT-BC259389
Eriogonum luteolum
Ernest C. Twisselmann
1961-9-21
6571
Lassen
Harvey Valley Road, ca. 14 miles south of Pitville [Pittville]
1219
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
CHSC100890
Eriogonum maculatum
L. P. Janeway
2008-8-2
9532
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
RSA739645
Eriogonum maculatum
L. P. Janeway
2008-8-2
9532
Lassen
Modoc Plateau just above th flats along the S side of Rusch Creek, S side of Smokey Creek Ranch road 1.8km W of the CA-NV line.
1349
Comment
UCR92118
Eriogonum maculatum
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
JEPS104110
Eriogonum microthecum var. ambiguum
Lowell Ahart
2003-8-17
10518
Lassen
Small drainage, ca 100 yd w of the cattle guard, on the se side of Smoke Creek Ranch Rd, ca 8-9 mi (air) ne of Highway 395, ca 30 mi (air) ne of Susanville.
1450
Comment
NY281555
Eriogonum microthecum var. laxiflorum
E. K. Balls
1952-10-10
18143
Lassen
In Northern Juniper Woodland, 8 mi. s.e. of Ravendale, Hwy 395, between Susanville and Alturas.
1280.2
Comment
NY572524
Eriogonum microthecum var. schoolcraftii
G. Schoolcraft
1982-7-20
807
Lassen
Lower slopes of Wagner Canyon
1402.1
Comment
CAS-BOT-BC266368
Eriogonum nudum var. deductum
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49514
Lassen
West of Janesville, Elysian Valley, Sierra Nevada
1325
Comment
SD13333
Eriogonum nudum var. nudum
R. V. Chamberlain
1935-9-8
6584
Lassen
Guernsey Creek
Comment
CAS-BOT-BC269826
Eriogonum nudum var. pubiflorum
John Thomas Howell
1934-7-8
12498
Lassen
Spalding's, Eagle Lake
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
UC1542948
Eriogonum nudum var. pubiflorum
G. Schoolcraft
1987-7-8
1760
Lassen
about 8 mi s Adin (Lonkey Hill); Lonkey Hill
1463
Comment
UC412801
Eriogonum nudum var. pubiflorum
Franklin P. Nutting
Lassen
Big Valley
Comment
SEINET5330981
Eriogonum nummulare
A. Tiehm
1978-1
4767
Lassen
7.2 road miles NE of Doyle on road 327 to Flanigan. About 1.7 miles W of the Nevada line
1524
Comment
SBBG65173
Eriogonum ovalifolium
S. W. Hutchinson
-Jun-1925
Lassen
Eagle Lake to Caribou Lake
1828
Comment
CHSC12948
Eriogonum prociduum var. prociduum
K. R. Stern; D. B. Joley, J. G. Geschke
1974-6-22
5813
Lassen
Ca. 16.5 mi w of Madeline, on Madeline-Adin Road.
1548
Comment
UC85955
Eriogonum pusillum
T. S. Brandegee
1892-6-24
Lassen
Honey Lake
Comment
HSC30039
Eriogonum spergulinum var. reddingianum
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19162
Lassen
3 mi. N of Westwood
Comment
POM105812
Eriogonum spergulinum var. reddingianum
Marcus E. Jones
1897-6-21
s.n.
Lassen
Chat.
1616
Comment
POM165251
Eriogonum spergulinum var. reddingianum
M. S. Baker
77
Lassen
Pine Creek.
Comment
UC699730
Eriogonum spergulinum var. reddingianum
Farris Farris
1936-6-15
Lassen
Eagle Lake road
1524
Comment
UC773863
Eriogonum spergulinum var. reddingianum
L. R. Short and D. Gish
1936-6-2
S- 375
Lassen
Burgess Spring Experiment Range Lassen National Forest, Burgess Spring Experiment Range
1798
Comment
RSA122742
Eriogonum spergulinum var. reddingianum
L. R. Short, Jan Gish
1936-6-2
S- 375
Lassen
Jeffrey ponderosa pine.
1799
Comment
NY283102
Eriogonum sphaerocephalum
G. Schoolcraft
1982-7-6
765
Lassen
Fort Sage Mountains
1950.7
Comment
CHSC86947
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.
1560
Comment
HSC63565
Eriogonum sphaerocephalum var. halimioides
Thomas W. Nelson, Jane P. Nelson
1980-7-6
5998
Lassen
Along Adin-Madelin Rd., 16 mi. E of Adin in Ash Valley
1555
Comment
NY283113
Eriogonum sphaerocephalum var. halimioides
H. D. D. Ripley
1943-6-13
5710
Lassen
South of Johnstonville
1325.9
Comment
SEINET530721
Eriogonum sphaerocephalum var. halimioides
Paul Opler
2006-6-9
Lassen
Ash Valley Rd., 5.9 mi E of Adin.
1423
Comment
SEINET530688
Eriogonum strictum
Paul Opler
2006-6-9
Lassen
Ash Valley Rd., 5.9 mi E of Adin.
1423
Comment
JEPS117571
Eriogonum strictum var. anserinum
Lowell Ahart, John Dittes
2010-7-31
16989
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
CAS-BOT-BC262770
Eriogonum strictum var. proliferum
Doris Kildale Gillespie
1930-5-13
9365
Lassen
Between Susanville and Janesville
Comment
JEPS85787
Eriogonum strictum var. proliferum
Roy E. Buck, Robert A. Price
1988-6-26
1028
Lassen
on subsidiary peak ca. 0.5 air km n main summit (Fredonyer Peak; ca. 30 air km nne of Susanville); Fredonyer Peak
2377
Comment
UC85813
Eriogonum strictum var. proliferum
T. S. Brandegee
1892-6-30
Lassen
Janesville
Comment
RSA782634
Eriogonum umbellatum
Elizabeth A. Kempton, Tim Tibault
2006-7-29
418
Lassen
Town of Chester. Vacant lot at intersection of Willow Way and Main Street
1388
Comment
UCR248974
Eriogonum umbellatum
Elizabeth A. Kempton, Tim Tibault
2006-7-29
418
Lassen
town of Chester, vacant lot at intersection of Willow Way and Main Street
1388
Comment
CAS-BOT-BC267887
Eriogonum umbellatum
Clarence R. Quick
1962-8-3
62 -89
Lassen
Delasmutt Ranch, Hw. 44, nr. Susanville-Old Station, along dirt road to Blacks Mt. E.F. Hdqtrs.
1615
Comment
CHSC23499
Eriogonum umbellatum var. modocense
Wayne O. Baum
1971-7-9
71 -81
Lassen
N. slope of Gallatin Peak.
2072
Comment
CHSC30618
Eriogonum umbellatum var. modocense
Eric Miller
1975-7-8
7
Lassen
N. E. slope of Gallatin Peak.
2011
Comment
CHSC6227
Eriogonum umbellatum var. modocense
A. Santos
1946-6-10
Lassen
Pelican Point, Eagle Lake.
1556
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
CAS-BOT-BC265093
Eriogonum umbellatum var. nevadense
M. S. Taylor; B. Hammond
1982-8-27
5056
Lassen
Crystal Peak, Diamond Mts., ca. 6 air mi SW of Doyle
2377
Comment
CAS-BOT-BC265100
Eriogonum umbellatum var. nevadense
A. A. Heller
1938-6-23
15215
Lassen
Slope south of Ravendale on U.S. Highway #395
Comment
JEPS107821
Eriogonum umbellatum var. nevadense
Lowell Ahart, John Dittes
2005-6-2
11980
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
RSA715993
Eriogonum umbellatum var. nevadense
L. Ahart, John Dittes
2005-6-2
11980
Lassen
North side of a poor dirt road, Long Valley, about 4.5 mi. (air) northeast of the intersection of Scott Rd. and Highway 70, 5.7 mi. (air) northwest of Halleluiah Junction.
1411
Comment
UC1032270
Eriogonum umbellatum var. nevadense
H. P. Hagge
1929-9-11
22
Lassen
Logan Mtn. Eagle Lake Quadrangle, Logan Mtn.
Comment
HSC17448
Eriogonum ursinum
H. E. Parks, S. T. Parks
Jun 1928
229
Lassen
Mt. Lassen N.P., Drakesbad
1982
Comment
CAS-BOT-BC262359
Eriogonum vimineum
Alice Eastwood; John Thomas Howell
1940-6-16
8343
Lassen
Janesville
Comment
CAS-BOT-BC262362
Eriogonum vimineum
John Thomas Howell
1934-6-10
11850
Lassen
4 miles south of Omira
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
JEPS56156
Eriogonum vimineum
W. L. Jepson
1918-8-5
7816
Lassen
Madelin Plains
1615
Comment
JEPS56158
Eriogonum vimineum
W. L. Jepson
1918-8-5
7817
Lassen
Madelin Plains
1615
Comment
RSA252387
Eriogonum vimineum
Robert F. Thorne, C. W. Tilforth
1969-9-6
39260
Lassen
C. 0.7 mi. SE of Milford, along Hwy. 395 (W. of Honey Lake).
1280
Comment
UC1032292
Eriogonum vimineum
H. S. Yates
1936-8-11
6070
Lassen
Baxter Creek Susanville Quadrangle, Baxter Creek
Comment
UC412790
Eriogonum vimineum
Franklin P. Nutting
Lassen
Adobe flat on n side Dixey Mts. Dixey Mts.
Comment
UC412830
Eriogonum vimineum
Lewis S. Rose
1940-6-16
40596
Lassen
Janesville
1280
Comment
CAS-BOT-BC262355
Eriogonum vimineum
David D. Keck
1930-7-23
951
Lassen
Susanville
1280
Comment
NY399577
Eriogonum vimineum
H. D. D. Ripley
1943-6-15
5763
Lassen
Northeast of Viewland
1341.1
Comment
POM111648
Eriophorum gracile
Marcus E. Jones
1897-6-30
s.n.
Lassen
Susanville, 4 miles below Eagle Lake.
1524
Comment
CAS-BOT-BC300341
Eriophyllum
Ella Dales Cantelow
1941-5-22
s.n.
Lassen
N. of Litchfield. U.S. Hy 395. Lava Country
Comment
SEINET10672051
Eriophyllum lanatum
Jeffrey Huber
1971-6-2
Huber 139
Lassen
6 mi. N of Halleluja Jct. on U.S. Hwy. 395, in Artemesia tridentata, Pinyon pine, Jeffrey pine along high rigdge and in sandy wash.
1402
Comment
CAS-BOT-BC308134
Eriophyllum lanatum var. achilleoides
John Thomas Howell
1934-6-10
11889
Lassen
12 miles n. of Susanville on road to Horse Lake
Comment
CAS-BOT-BC308141
Eriophyllum lanatum var. achilleoides
B. J. Hammerly
1941-6-21
43
Lassen
8 mi. SE of Likely on Blue Lake Road
Comment
UC725390
Eriophyllum lanatum var. achilleoides
A. A. Heller
1938-6-23
15197
Lassen
e slope of Freydonyer Pass (on State Highway #36); State Highway #36, Freydonyer Pass
1645
Comment
CDA4968
Eriophyllum lanatum var. achilleoides
T. C. Fuller
1963-6-1
10634
Lassen
East side of road to Hall s Flat, 9.4 miles south of Pittville.
0
Comment
OBI75879
Eriophyllum lanatum var. croceum
Anthony Baniaga
2011-6-29
402
Lassen
Lassen Natl Forest. Willard Ck., Fredonyer Pass. Fredonyer Pass quad T29N r10E sec 14 NE of SW
1500
Comment
CAS-BOT-BC301531
Eriophyllum lanatum var. integrifolium
Louella Bass
1983-6-10
8 -83
Lassen
Lassen College Campus, Susanville
Comment
POM66743
Eriophyllum lanatum var. integrifolium
Marcus E. Jones
1897-6-18
s.n.
Lassen
Chat. [also Chats, a former settlement]
1524
Comment
RSA221801
Eriophyllum lanatum var. integrifolium
Noel Holmgren, John J. Fay, Barton L. Bethers
1970-6-25
4376
Lassen
North end of Petersen Mountain, near Hwy 395, 8 miles north of jct. with Hwy 70 (Hallelujah Junction)
1524
Comment
UC1130323
Erodium cicutarium
A. Simontacchi
1940-6-8
832
Lassen
Halls Flat Ranger Station Lassen National Forest, Halls Flat Quad.
1706
Comment
JEPS124541
Erodium cicutarium
J. Yamanaka
1965-7-12
121
Lassen
Highway 395, 15 miles N. of junction of Calif. 704 and US 395
Comment
JEPS97782
Eryngium alismifolium
Annetta M. Carter
1945-9-30
1716
Lassen
W side of Eagle Lake. About 3 mi. S of Spaldings where road crosses bridge over dry creek.
Comment
POM83000
Eryngium alismifolium
Marcus E. Jones
1897-6-24
s.n.
Lassen
10 to 15 miles west from Amedee.
1219
Comment
UC1508836
Eryngium alismifolium
Gary Schoolcraft
1984-7-31
1329
Lassen
ca. 1 mi. n. Ravendale Fire Station
1615
Comment
CAS-BOT-BC41510
Erysimum asperum
Geo. A. Fisher
1928-6-21
28
Lassen
Lassen Forest.
1615
Comment
JEPS79211
Erysimum repandum
L. R. Heckard with R. C. Bacigalupi
1980-6-11
5247
Lassen
11.3 mi. n. Litchfield (along U.S. 395 s. of Deep Creek crossing, between R.R. & hwy.)
1463
Comment
CHSC66266
Erythranthe breweri
Vernon Oswald; Lowell Ahart
1996-6-24
7850
Lassen
Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake. Modoc Plateau.
1633
Comment
CAS-BOT-BC153609
Erythranthe moniliformis
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49410
Lassen
Elysian Valley, west of Janesville
1325
Comment
CHSC5062
Erythranthe primuloides
B. Anthony
1967-7-14
283
Lassen
5.3 mi from junction to highway 44 and rd to Silver Lake.
1798
Comment
CHSC66268
Erythranthe pulsiferae
Vernon H. Oswald; Lowell Ahart
1996-6-24
7865
Lassen
Modoc Plateau. Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake. In open woods on the W side of the meadow ca. 0.2 mi S of the cabins.
1633
Comment
NY500075
Eschscholzia
W. W. Eggleston
1911-5-29
6752
Lassen
Vicinity of Doyle Station
1290
Comment
NY499985
Eschscholzia californica
B. J. Ertter
1987-7-24
7297
Lassen
Ca. 3/4 mile east-northeast of Beckwourth Pass at end of old crumbling paved road
1524.0
Comment
JEPS117958
Eucephalus breweri
Zoya Akulova-Barlow
Sep 2006
Lassen
Sierra Nevada, Dyer Mountain
Comment
UCD114965
Euclidium syriacum
June McCaskill
1966-6-5
712
Lassen
Frosty Acres ranch, at end of Albaugh Road, 0.6 mile west of its junction with Bassett Road (ca. 2 miles south of U.S. Highway 299 and 4 miles southwest of Adin), northern part of county.
1280
Comment
SEINET12143360
Euphorbia serpillifolia
Unknown
1978-1
103
Lassen
along dirt road near Miners Point, SE end of Eagle Lake
1585
Comment
CHSC64874
Euphorbia spathulata
Vernon H. Oswald; Lowell Ahart
1995-6-19
6881
Lassen
Modoc Plateau. Between Litchfield and Ravendale on Smoke Creek Ranch Rd., 0.3 mi e of Hwy. 395.
1383
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
UC1192257
Euthamia occidentalis
Malcolm A. Nobs, S. Galen Smith
1949-8-20
1488
Lassen
1 mi s of Doyle; Long Creek
Comment
CHSC42184
Festuca idahoensis
C. E. Laver
1985-8-12
Lassen
Ca. 8.5 mi se of Madeline and 9 mi ne of Termo.
2194
Comment
JEPS114855
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
POM203052
Festuca idahoensis
J. T. Howell
1934-7-6
12448
Lassen
Harvey Valley
Comment
UCD65977
Festuca idahoensis
L. Whitney
1935-6-23
3295
Lassen
Fruit Growers Supply Co. Camp #10.
Comment
SBBG128880
Festuca idahoensis
L. Ahart, J. Dittes
2008-6-19
14880
Lassen
open hillside, ca. 100 yards E of Willow Crk, ca. 120 yards NE of Hwy 139, near Forest Rd 36N02, ca. 19.6 mi ESE of Bieber
1578
Comment
OBI75881
Festuca myuros
Anthony Baniaga
2011-6-30
406
Lassen
Lassen Natl Forest. E of 29N03. Fredonyer Pass quad. T29N R10E sec 24 NW of NE
1460
Comment
CAS-BOT-BC278937
Festuca rubra
George W. Gillett
1957-7-28
923
Lassen
Lassen Volcanic National Park. Trail to Widow Lake above junction with Snag Lake trail at upper end of Butte Lake
1859
Comment
UCD66364
Festuca rubra
A. H. Shunk
1923-1
13
Lassen
Hayden Hill.
Comment
JEPS120292
Frasera albicaulis var. modocensis
Tim Kask
2013-5-29
211
Lassen
On USFS Rd. 18 north of Highway 44 1/4 mi.
Comment
CHSC4503
Fremontodendron californicum subsp. californicum
C. Glascock
1965-5-15
419
Lassen
12.4 mi. w of Mineral R. S. on Hwy. 36 at n roadside.
Comment
RSA304281
Fritillaria pudica
James R. Shevock
1971-4-9
946
Lassen
East of Dana, Highway 299
915
Comment
RSA180586
Gaillardia aristata
T. C. Fuller
1965-8-25
14036
Lassen
East side of Hwy. 395 to Doyle, 2.4 miles north of Hallelujah Junction
Comment
JEPS25525
Galium aparine
Rimo Bacigalupi with Lincoln Constance
1959-7-16
7137
Lassen
US Hwy 395 one fourth mi s junction of road to Smokey Creek (playa beside road)
1341
Comment
UC1523745
Galium bolanderi
Gary Schoolcraft
1981-7-21
543
Lassen
ne Pittville (along Hwy 299)
1249
Comment
CHSC60406
Galium grayanum
Mary Ann Showers
1992-6-28
2701
Lassen
Lassen Volcanic National Park. Andesite cliffs west of Soda Lake and below tarn at base of north facing cirque between Pilot Pinnacle and Mt. Diller.
2438
Comment
CHSC59813
Galium multiflorum
Mary Meyer; Teresa Prendusi
1980-5-8
Lassen
In rocks on lower Balls Canyon wall.
1341
Comment
OBI77063
Garrya fremontii
Anthony Baniaga
2011-6-7
310
Lassen
Lassen NF.. W of 34N60. Burney Mtn East quad. T34N r3E sec 35 SW of NE
1747
Comment
POM355365
Gayophytum diffusum subsp. parviflorum
Christopher Davidson
1975-6-7
2759
Lassen
1 mile E of Beckwourth Pass on Hwy 70.
1524
Comment
UC1186544
Gayophytum diffusum subsp. parviflorum
J. W. MacSwain
1959-8-12
59 -148
Lassen
2 mi n Bridge Camp; Hat Creek
Comment
CHSC105245
Gayophytum heterozygum
Lowell Ahart; John Dittes
2010-7-31
17025
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
CHSC25090
Gayophytum heterozygum
K. R. Stern
1967-7-1
2442
Lassen
Murrer Meadow Road, ca. 2.5 mi SE of Eagle Lake Biology Station.
1554
Comment
UC1122567
Gayophytum heterozygum
H. P. Hagge
1929-9-12
26
Lassen
Logan Mtn. Eagle Lake Quadrangle
Comment
UC20253
Gayophytum heterozygum
M. S. Baker and Frank Nutting
1894-7-12
Lassen
Pine Creek
Comment
SBBG126107
Gayophytum heterozygum
L. Ahart, J. Dittes
2010-7-31
17025
Lassen
ca 100 yards NE of where the rd crosses Hunsinger Draw, 1.9 mi NW of Moll Reservoir, 2.8 mi W of Ash Valley, 8.4 mi SE of Adin
1520
Comment
CHSC27712
Gayophytum humile
Robert A. Schlising
1978-7-1
3301
Lassen
S of Eagle Lake; meadow bordering Mahogany Lake.
2060
Comment
UC107796
Gayophytum racemosum
T. S. Brandegee
1892-7-1
Lassen
Susanville
Comment
UCD150409
Gayophytum racemosum
Harry A. George
1967-6-15
s.n.
Lassen
Willow Creek Ranch.
Comment
CHSC6191
Gayophytum ramosissimum
R. Gein
1946-6-12
Lassen
Webb's Camp, Eagle Lake.
1554
Comment
UC1536822
Gayophytum ramosissimum
Gordon H. True Jr.
1938-7-9
908
Lassen
near Termo; Madeline Plains
1524
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
POM253026
Gentiana newberryi
A. A. Heller
1937-9-1
15341
Lassen
About a mile east of Westwood.
1524
Comment
UC803944
Gentiana newberryi
G. L. Stebbins Jr., P. Dansereau, C. McMillan, and K. Narayan
1949-8-6
3998
Lassen
nw of Susanville; Hog Flat
1676
Comment
CHSC61048
Gentiana newberryi var. tiogana
Vernon H. Oswald; Lowell Ahart
1993-8-3
5747
Lassen
Cooper Swamp located E of Silver Lake just E of the Caribou Wilderness, ca. 13 mi (air) N of Lake Almanor. In the S part of the swamp.
1932
Comment
CHSC58499
Gentianopsis simplex
Vernon H. Oswald
1992-7-3
5052
Lassen
Lassen Volcanic Park. Grassy Creek on the S shore of Snag Lake. Along drainage on the upper strand of the lake.
1851
Comment
POM88686
Geranium pusillum
Marcus E. Jones
1897-6-25
s.n.
Lassen
Susanville.
1341
Comment
JEPS94554
Geum triflorum
Vernon Oswald and Lowell Ahart
1997-6-24
8649
Lassen
s of Susanville (at the small pond on the crest of Diamond Mountain, about midway between Aspen Flat and Red Rock Lookout); crest of Diamond Mountain
2249
Comment
UC1136907
Geum triflorum
George A. Fischer, Irwin H. Johnson
1933-7-12
F 211
Lassen
Lassen National Forest, Forest and Range Experiment Station Lassen National Forest; , Forest and Range Experiment Station
1722
Comment
UC773877
Geum triflorum
L. R. Short, J. Warren
1936-6-23
S 423
Lassen
Lassen National Forest, Burgess Spring Experiment Range Burgess Spring Experiment Range; Lassen National Forest, Burgess Spring Experiment Range
1764
Comment
CHSC1549
Geum triflorum var. ciliatum
1944-7-5
Lassen
Champ's Flat west of Eagle Lake.
1584
Comment
RSA122289
Geum triflorum var. ciliatum
K. e. Bradshaw
1939-5-27
25210
Lassen
Near S end of Black Mtn EF Plot 39-4.
1738
Comment
SEINET11268345
Gilia inconspicua
Vernon H. Oswald, Lowell Ahart
1998-5-22
9107
Lassen
Road to ORV parking area in Fort Sage Mtns. 0.5 mi east of Fort Sage Rd., ca. 5 mi NNE of Doyle.; 0
1372
Comment
UC1093640
Gilia inconspicua
Herbert L. Mason
1957-7-5
14716
Lassen
town s Madeline (Madeline Plains); Madeline Plains (town s of Madeline)
Comment
CHSC11771
Gilia modocensis
Wayne O. Baum
1971-6-28
71 -4
Lassen
S. slope of Gallatin Peak.
2042
Comment
CHSC93696
Gilia modocensis
Lowell Ahart; John Dittes
2005-6-2
11989
Lassen
Along a small wash, west side of a poor dirt road, Long Valley, about 4 1/2 miles (air) northeast of the intersection of Scott Road and Highway 70, 6.0 miles (air) northwest of Hallelujah Junction.
1427
Comment
JEPS107831
Gilia modocensis
Lowell Ahart, John Dittes
2005-6-2
11989
Lassen
Along a small wash, west side of a poor dirt road, Long Valley, about 4 1/2 miles (air) northeast of the intersection of Scott Road and Highway 70, 6.0 miles (air) northwest of Hallelujah Junction
1427
Comment
RSA104286
Gilia modocensis
Verne Grant, Alva Grant
1956-5-17
9796
Lassen
Just south of Secret Valley, north of Litchfield, along Hwy. 395.
1311
Comment
NY964018
Gilia salticola
A. Tiehm
1986-5-12
10346
Lassen
14.4 road miles east of highway 395 on the dirt road to Smoke Creek and the Smoke Creek Desert
1448
Comment
RSA28121
Gilia salticola
Elmer I. Applegate
1934-5-4
8914
Lassen
South end of Secret Valley
Comment
CHSC25915
Gilia sinuata
K. R. Stern
1967-7-1
2437
Lassen
Murrer Meadow Road, ca. 2.5 mi SE of Eagle Lake Biology Station.
1554
Comment
CHSC66283
Glyceria borealis
Vernon H. Oswald; Lowell Ahart
1996-6-24
7872
Lassen
Modoc Plateau. Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake. In Papoose Creek where it leaves the N end of the meadow.
1633
Comment
CHSC77264
Glyceria elata
G. Schoolcraft
1997-7-30
2614
Lassen
W facing slope of Diamond Mtn.
1950
Comment
CHSC64755
Glyptopleura marginata
Vernon H. Oswald
1995-5-24
6782
Lassen
Modoc Plateau. 1.8 mi s of Wendel Rd. (Lassen 320) on an unsigned dirt road 0.6 mi e of milepost 19.0, just e of Skedaddle Creek. On the east side of the road ca. 0.2 mi n of the railroad.
1219
Comment
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
JEPS114877
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
UC1483835
Gnaphalium palustre
G. Schoolcraft
1980-7-22
Lassen
nw of BLM fire station (along Hwy 395)
1630
Comment
CHSC65359
Gratiola heterosepala
Vernon H. Oswald; Lowell Ahart
1995-8-14
7200
Lassen
Modoc Plateau. Horse Lake Rd. (Lassen 536) at a BLM reservoir 11.3 mi W of Hwy. 395, N of Susanville.
1737
Comment
RSA772749
Gratiola heterosepala
Robert F. Thorne, Larry E. DeBuhr
1975-8-22
47210
Lassen
Along Highway 395 ca. 5 miles north of Madeline and ca. 5.5 miles south of Modoc county line.
1616
Comment
CAS-BOT-BC110213
Grayia spinosa
Peter H. Raven; Otto T. Solbrig
1958-6-17
13274
Lassen
Along United States Highway 395, 19.0 miles south of Ravendale.
Comment
CDA23423
Grayia spinosa
Robin Breckenridge
2007-5-1
PDR# 1349824
Lassen
Wendel.
0
Comment
CDA23424
Grayia spinosa
S. E. Piper
1943-7-2
Lassen
0.5 mile east of Herlong.
0
Comment
JEPS124631
Grindelia nana
Virginia Hardham
1965-7-13
132
Lassen
Along roadside 1.4 mi past junction of As and 299.
Comment
UCD132463
Grindelia nana
Dan Marcum
1978-7-3
s.n.
Lassen
exact location unknown.
Comment
CDA3425
Gypsophila paniculata
T. C. Fuller
1963-7-16
10923
Lassen
North of the cemetery, Janesville.
0
Comment
CDA34391
Gypsophila paniculata
Anonymous
1987-6-17
Lassen
Off US 395 near Janesville.
0
Comment
CDA36783
Gypsophila paniculata
D. B. Joley
1976-6-22
1
Lassen
Janesville.
0
Comment
UCD119367
Hackelia amethystina
G. Schoolcraft
1981-6-12
0456
Lassen
Gold Run Rd., on lower slopes of Diamond Mtn., Susanville.
1889
Comment
UC1035983
Hackelia californica
Helen K. Sharsmith
1955-6-27
4517
Lassen
n of Hat Creek Ranger Station (forest adjacent to Highway 89); Lassen National Forest
1158
Comment
UC1035997
Hackelia cusickii
Helen K. Sharsmith
1955-6-22
4496
Lassen
5 mi beyond Blue Lake (on road to Likely); Warner Mountains, Modoc National Forest
1767
Comment
JEPS67931
Hackelia micrantha
Jos. Grinnell
1928-6-29
Lassen
Butte Lake
1889
Comment
UC1602195
Halogeton glomeratus
Pryer and Fix
1948-8-17
Lassen
Herlong
Comment
UC1553381
Helianthella californica subsp. nevadensis
G. Schoolcraft
1988-7-11
1822
Lassen
about 1 mi s Hwy. 44 (on road to Goumaz)
1645
Comment
CAS-BOT-BC314764
Helianthella californica var. nevadensis
A. M. Vollmer; L. Beane
1953-7-1
37
Lassen
Along Halls Flat Road, beginning 6 miles west of Susanville to McArthur
1554
Comment
CAS-BOT-BC314766
Helianthella californica var. nevadensis
John Thomas Howell
1934-7-11
12561
Lassen
Near Black's Lake
Comment
CHSC43613
Helianthus annuus
Vernon Oswald
1986-8-7
2274
Lassen
Hwy 36, 15.7 mi e of the Lassen-Plumas County line, 1.7 mi sw of the Susan River. Roadside.
1447
Comment
CHSC7636
Helianthus cusickii
Beverley J. Wise
1969-5-15
22
Lassen
28.9 mi. East of Susanville on Hwy 395.
1554
Comment
UC727121
Helianthus cusickii
A. A. Heller
1938-6-23
15209
Lassen
along Hwy 395 on ridge n Mapes
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
CHSC92717
Hemizonella minima
L. P. Janeway; B. Castro
2005-7-10
8481
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
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
RSA122623
Hesperochiron californicus
L. R. Short
1936-4-28
S- 330
Lassen
Harvey Valley. Lassen Forest.
1707
Comment
CHSC61155
Hesperochiron pumilus
Vernon H. Oswald; Lowell Ahart
1993-5-12
5382
Lassen
Forest Rd. 32N08 to Crater Lake, 0.5 mi NE of Hwy. 44, between A21 ( to Westwood) and Poison Lake, on the edge of a large meadowy opening covered with sagebrush scrub along Pine Creek.
1737
Comment
SEINET5499822
Hesperochiron pumilus
C. G. Gulling
1905-1
s.n.
Lassen
Big Meadows
Comment
POM87380
Hesperolinon micranthum
Marcus E. Jones
1897-6-25
s.n.
Lassen
Susanville.
1341
Comment
UC1924195
Hesperolinon micranthum
Debra Valov
2005-8-20
2005235
Lassen
Bieber; off County A2 c. 8 km east of Hwy 299
1274
Comment
UC867806
Hesperolinon micranthum
C. L. Hitchcock
1940-5-26
6618
Lassen
ca 12 mi n Fall River Mills (Shasta Co.); Fall River
1371
Comment
CAS-BOT-BC280680
Hesperostipa comata
John Thomas Howell
1934-6-10
11841
Lassen
Near Plumas Junction
Comment
UC593455
Hesperostipa comata
E. B. Babcock and G. L. Stebbins Jr.
1936-6-7
1743
Lassen
e-facing slope of gully on mountain above Red Rock
1420
Comment
UC1069609
Hieracium albiflorum
A. Simontacchi
1940-7-2
889
Lassen
6.2 mi ene Ebey Lake; Lassen National Forest, Halls Flat Quadrangle
Comment
UC1136852
Hieracium albiflorum
George A. Fischer and Irwin H. Johnson
1933-7-14
F 269
Lassen
Lassen <National> Forest
1737
Comment
UC1136853
Hieracium albiflorum
L. R. Short and Wm. Gansberg
1936-7-3
S 411
Lassen
Burgess Spr. Exp. Range Lassen National Forest
1847
Comment
UC135018
Hieracium albiflorum
T. S. Brandegee
1892-7-2
s. n.
Lassen
Susanville
Comment
CAS-BOT-BC318713
Hieracium horridum
Wm. Bridge Cooke
1938-9-17
11703
Lassen
Canyon below Horse Camp, Mount Shasta
2133
Comment
CAS-BOT-BC318711
Hieracium horridum
Lemmon
1874-9-1
s.n.
Lassen
Shasta
Comment
HSC103617
Hieracium horridum
Thomas W. Nelson, Jane Nelson
1985-8-10
8020
Lassen
Along west side of Silver Lake.
1829
Comment
JEPS103187
Hieracium scouleri
G. Schoolcraft
2000-7-5
2911
Lassen
On slopes of Shinn Mountain
2011
Comment
CHSC65312
Hippuris vulgaris
Vernon H. Oswald
1995-8-21
7211
Lassen
Warner Mts. Blue Lake located ca. 13 mi SE of Likely. Localized colony growing in shallow water of a large, marshy area at the SW corner of the lake.
1859
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
CHSC6255
Holodiscus microphyllus var. glabrescens
M. West
1946-7-7
Lassen
Cone Lake near east border of Lassen Nat. Park.
1828
Comment
POM91032
Holodiscus microphyllus var. glabrescens
Marcus E. Jones
1897-6-18
s.n.
Lassen
Chat.
1524
Comment
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
RSA755003
Holosteum umbellatum subsp. umbellatum
L. Ahart, John Dittes
2008-6-20
14922
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
UC1609207
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
UC1100324
Hordeum brachyantherum subsp. brachyantherum
Malcolm A. Nobs, S. Galen Smith
1949-7-21
1055
Lassen
4 mi N of Madelaine
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
HSC10190
Hordeum jubatum
M. T. Milligan
1964-8-6
200
Lassen
Eagle Lake, near shore at Eagle Lake General Store.
1677
Comment
UC1924567
Hordeum murinum subsp. glaucum
Debra Valov
2006-5-28
2006039
Lassen
Bieber off County Rd. A2 c. 12 km east of Hwy 299
1279
Comment
JEPS114764
Hordeum murinum subsp. leporinum
Lowell Ahart, John Dittes
2008-6-20
14915
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
CAS-BOT-BC157367
Horkelia fusca
Clare B. Hardham
1961-6-17
7503
Lassen
Baxter Creek south of Susanville
Comment
CHSC36189
Horkelia fusca subsp. parviflora
M. S. Taylor; B. Hammond
1982-7-8
4789
Lassen
Along spur rd ca. 1/3 mi w of Scott Rd, ca. 1.5 mi ne of Beckwourth Pass.
1463
Comment
NY170061
Hutchinsia procumbens
N. H. Holmgren
1978-6-11
8907
Lassen
Vicinity of spring at fork to Painters Flat on E side of Observation Peak, 28 km (17.4 mi) east of Ravendale and 22.5 km (14 mi) airline distance.
1680
Comment
RSA122624
Hydrophyllum capitatum var. alpinum
L. R. Short
1936-4-28
S- 333
Lassen
MDM, Burgess Spr. Exp. Range.
1753
Comment
CHSC118790
Hymenoxys cooperi
L. P. Janeway; B. Castro
2015-6-5
11756
Lassen
Great basin, Modoc Plateau. Along the road from the south end of Surprise Valley to Tuledad Canyon, 7.4 road-km south of Surprise Valley Road; 1.4 air-km northwest of Mahogany Mtn.
1731
Comment
CAS-BOT-BC312843
Hymenoxys lemmonii
J. E. Stuart
1930-6-1
s.n.
Lassen
Eight miles south of Constantia on the Reno Road
Comment
UCD133302
Hymenoxys lemmonii
J. E. Stuart
Date Unknown
2154
Lassen
8 miles south of Constantia, Reno Highway.
Comment
UC124657
Hypericum anagalloides
T. S. Brandegee
1892-7-2
Lassen
Susanville
Comment
SEINET10472162
Hypericum formosum subsp. scouleri
Mary Susan Taylor
1974-1
Taylor 283
Lassen
Vicinity of Eagle Lake, ca. 13 mi NW of Susanville.
Comment
CHSC41841
Hypericum formosum var. scouleri
P. V. Caldwell
1972-7-13
271
Lassen
Eagle Lake. Growing scattered on edge of upper Papoose Creek above forest road to Papoose Meadows.
Comment
JEPS66829
Hypericum formosum var. scouleri
Brown and Wieslander
1922-7-30
28
Lassen
Eagle Lake, Martin Springs
Comment
UC420712
Hypericum formosum var. scouleri
Franklin P. Nutting
1894-7-25
Lassen
Willow Creek northern CA
Comment Read comments Jul 3 2013
UC124652
Hypericum formosum var. scouleri
W. E. Bryant
Lassen
Comment
SEINET5344266
Hypericum scouleri
C. G. Gulling
1905-1
s.n.
Lassen
Big Meadows
Comment
CAS-BOT-BC88621
Idahoa scapigera
Doris Kildale Gillespie
1930-5-12
9338
Lassen
2 miles north of Susanville on road to Alturas.
Comment
CHSC7707
Idahoa scapigera
Beverley J. Wise
1969-4-10
37
Lassen
1.5 mi. north on Hwy 139.
1341
Comment
NY52522
Iliamna bakeri
G. Schoolcraft
1984-8-27
1371
Lassen
Eastern slopes of Little Hat Mtn.
1981.2
Comment
UCD126378
Iliamna bakeri
Richard R. Halse
2004-7-8
6615
Lassen
Along State Highway 139, around 6 miles north of Eagle Lake.
1710
Comment
JEPS808
Ipomopsis aggregata
Brown and Wieslander
1922-6-19
1
Lassen
Martin Springs Eagle Lake
Comment
HSC69077
Ipomopsis aggregata
Gary Schoolcraft
1979-7-12
145
Lassen
NW side of Shinu Peaks
2134
Comment
CHSC1230
Ipomopsis aggregata subsp. formosissima
K. Chew
1954-7-7
Lassen
NW end of Eagle Lake.
1615
Comment
CHSC6203
Ipomopsis aggregata subsp. formosissima
P. Balch
1955-7-17
Lassen
Eagle Lake. Mouth of Papoose Creek, near Gallatin Beach.
1561
Comment
CHSC68895
Ipomopsis congesta subsp. montana
Vernon Oswald; Lowell Ahart
1997-6-24
8637
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
CHSC107328
Iris hartwegii subsp. hartwegii
Lowell Ahart; John Dittes
2011-6-21
17524 -A
Lassen
335 feet northwest of Big Valley Canal, 2.1 miles (air) south of County Road 87, 6.6 miles (air) northeast of Bieber, 7.9 miles (air) west by southwest of Adin, Big Valley.
1264
Comment
CAS-BOT-BC61857
Isoetes nuttallii
Alice Eastwood; John Thomas Howell
1940-6-11
7984
Lassen
Big Valley Mts.
Comment
CHSC111241
Iva axillaris
B. Castro; L. P. Janeway
2012-7-3
1939
Lassen
Modoc Plateau. Honey Lake Valley, NE side of Honey Lake; 2.9 air mi NW of Wendel. 2 road mi SE of Hwy 395, 0.35 mi S of Wendel Road on road into Fish and Game Wildlife Area [Honey Lake State WL Area, Fleming Unit].
1219
Comment
CAS-BOT-BC148542
Ivesia paniculata
Barbara Kelly
1977-8-9
559
Lassen
Along dirt road from Adin 16 1/4 miles west of Madeline.
Comment
SEINET3860195
Ivesia paniculata
Thomas W. Nelson, Jane P. Nelson
1980-7-6
5984
Lassen
Ash Valley along Adin-Madeline Rd., 16 mi E of Adin.; 0
1554
Comment
CHSC5267
Juncus balticus
1944-6-26
Lassen
Eagle Lake.
1584
Comment
UC1542936
Juncus balticus
G. Schoolcraft
1987-5-18
1701
Lassen
17 mi e Ravendale; Pine Dunes RNA
1706
Comment
UCR244138
Juncus balticus
Jim Andre, G. L. Clifton
1993-6-9
19700
Lassen
Foothills of Sierra Nevada Mtns., Honey Lake Valley, c. 5 mi. west of Doyle (at U.S. 395), just inside Plumas NF boundary
1631
Comment
UCD141340
Juncus balticus subsp. ater
Herbert L. Mason; Verne Grant
1947-7-9
13297
Lassen
5 miles east of Bieber.
Comment
CHSC117204
Juncus bufonius var. occidentalis
Lowell Ahart; John Dittes
2016-6-7
20988
Lassen
West edge of pond, 120 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
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
JEPS87448
Juncus hemiendytus var. abjectus
Vernon H. Oswald and Lowell Ahart
1993-6-3
5481
Lassen
between Poison Lake and Susanville (s. side of Pine Creek Valley, Champs Flat Rd. (Lassen 105, Forest 32N28Y), where it diverges from Lassen 21 (32N02) to Eagle Lake); Pine Creek Valley
1725
Comment
SEINET3507366
Juncus longistylis
Marcus E. Jones
1897-6-30
Lassen
Susanville, 4 miles below Eagle Lake
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
CDA33205
Juncus nevadensis
Gordon Leppig
1998-6-12
933
Lassen
Modoc National Forest. Blue Lake Ranch.
Comment
UC1553383
Juncus nevadensis
G. Schoolcraft
1988-8-10
1849
Lassen
10 mi ne Susanville (along Hwy 139)
1505
Comment
RSA647524
Juncus nevadensis
Marion P. Harthill
1974-6-14
1518
Lassen
Madeline.
152
Comment
JEPS117620
Juncus tenuis
Lowell Ahart, John Dittes
2010-7-31
17026
Lassen
About 20 yards northeast of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin
1520
Comment
UC1133742
Juncus tenuis
Robert W. Gardner
1939-6-28
G- 33
Lassen
Burgess Spring Experimental Range Halls Flat Quad.
1706
Comment
UC773861
Juncus tenuis
L. R. Short and J. Warren
1936-6-10
S- 418
Lassen
Burgess Spring Experiment Range.
Comment
CHSC92739
Juncus trilocularis
L. P. Janeway
2005-7-3
8456
Lassen
High Cascade Range. Near large shallow stock pond 0.3 km west of Road 35N38 (road to Blacks Ridge Lookout Tower), 1.9 road km south or Road 22; 2.3 air km northwest of the lookout.
1580
Comment
HSC101239
Juncus trilocularis
Peter Zika
2008-7-14
23893
Lassen
South side of Route 44, SE end of Grays Valley near Lodgepole
1730
Comment
RSA699964
Juncus trilocularis
L. P. Janeway
2001-6-20
7192
Lassen
High Cascade Range. South side of the junction of the 22 road and Road 34N41; about 5.6 km south of Dixie Valley and 8.9 km north of Harvey Mountain.
1560
Comment
SD243239
Juncus trilocularis
Peter F. Zika
2008-7-14
23893
Lassen
Cascade Range Highlands: S side of Route 44, SE end of Grays Valley near Lodgepole.
1730
Comment
CHSC23332
Juniperus occidentalis
Mark Stopher
1976-1-11
28
Lassen
Collected 5 miles north on Eagle Lake turnoff, 3 miles west of Susanville on highway 36.
1463
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
UCR4289
Juniperus occidentalis var. occidentalis
Frank C. Vasek
1965-8-31
650831- 05
Lassen
c. 45 mi north of Susanville
1662
Comment
UCR3789
Juniperus osteosperma
Frank C. Vasek
1964-9-12
640912- 07
Lassen
5.2-5.4 mi north of the junction of US Hwy 395 w/ Calif. Hwy 70 (alt. US Hwy 40)
1479
Comment
CHSC60920
Kelloggia galioides
Vernon H. Oswald; Lowell Ahart
1993-7-8
5657
Lassen
Pittville Rd. (Lassen 111, 36N01) 1.9 mi N of Hwy. 44, on the SE edge of Poison Lake.
1709
Comment
JEPS12481
Kelloggia galioides
Brown and Wieslander
1922-7-18
53
Lassen
near Susanville (Martins Springs); Martins Springs
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-BC180803
Kochia scoparia
Louella Bass
1981-7-21
s.n.
Lassen
Standish
Comment
UC1132160
Koeleria macrantha
A. Simontacchi
1940-7-8
945
Lassen
5.2 mi s Jelly Camp; Lassen National Forest, Halls Flat Quadrangle
Comment
UCD86006
Koeleria macrantha
L. Whitney
1933-7-9
s.n.
Lassen
Halls flat.
1737
Comment
CAS-BOT-BC271331
Koeleria pyramidata
Marcus E. Jones
1897-6-19
s.n.
Lassen
Chat
1615
Comment
UC7389
Krascheninnikovia lanata
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3327
Lassen
Honey Lake Valley
1219
Comment
CHSC59133
Kyhosia bolanderi
Vernon H. Oswald; Lowell Ahart
1992-8-25
5195
Lassen
Lassen Volcanic National Park. Slope at the SE corner of Snag Lake.
1853
Comment
UC2027323
Kyhosia bolanderi
Anthony Baniaga
2011-8-16
499
Lassen
Lassen National Forest. Along F.S. 10, ca. 1 mi NE of Cummings Spring. Red Cinder quadrangle
Comment
CHSC113011
Lactuca serriola
Lowell Ahart; John Dittes
2013-7-23
18887
Lassen
Drainage filled with dirt from construction of a pond, 40 yards south of the man made pond, about 110 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
CHSC5067
Lactuca serriola
L. Stites
1967-7-4
122
Lassen
Collects at Eagle Lake Biology Station.
1371
Comment
UCD133500
Lactuca tatarica subsp. pulchella
W. L. Jepson
1918-8-2
s.n.
Lassen
lower bench of Long Valley Creek. Beckwith Pass.
1463
Comment
CAS-BOT-BC341483
Lagophylla ramosissima
John Thomas Howell
1934-6-10
11863
Lassen
Honey Lake Valley, 37 miles s. of Susanville
Comment
CAS-BOT-BC341481
Lagophylla ramosissima
Barrett Anderson
1986-7-9
3122
Lassen
Road to Day, about 2.4 km N of Rte 299
1065
Comment
CHSC71865
Lagophylla ramosissima subsp. ramosissima
Vernon H. Oswald; Lowell Ahart
1998-9-8
9575
Lassen
Hwy. 299 at the RR overpass on the east side of Nubieber.
1255
Comment
CDA20356
Lappula redowskii
D. Tillotson
1942-6-1
s.n.
Lassen
Modoc Plateau; Mud Flat.
0
Comment
CHSC112414
Lasthenia glaberrima
Lowell Ahart; John Dittes, Todd Sloat
2013-6-8
18739
Lassen
Near a drainage filled with dirt from construction of a pond, about 100 yards west of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
JEPS89760
Lasthenia glaberrima
Dean Wm. Taylor with Glenn L. Clifton, Rexford E. Palmer and Roy Buck
1988-6-6
9004
Lassen
road from Bieber to Lookout 0.5 mi s of the Modoc County Line (Big Valley, Pit River Watershed); Big Valley, Pit River Watershed
1249
Comment
RSA0035916
Lasthenia glaberrima
Lowell A. Ahart, John Dittes
2008-6-20
14901
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 miles (air) northeast of Bieber.
1263
Comment
POM29621
Lathyrus
Marcus E. Jones
1897-6-28
s.n.
Lassen
Diamond Mountain; Susanville; Perkins Ranch.
1829
Comment
UC1137764
Lathyrus brownii
August L. Hormay
1934-5-9
Lassen
Black Mt. Headquarters Lassen National Forest
1706
Comment
POM253248
Lathyrus pauciflorus subsp. brownii
A. A. Heller
1938-6-4
15147
Lassen
1 mile east of Fredonyer Pass.
1707
Comment
CAS-BOT-BC321493
Layia glandulosa
Noel H. Holmgren; Patricia K. Holmgren
1980-7-4
9506
Lassen
Observation Peak, S side of mountain, 18 km (11 mi) airline distance E of Ravendale
1890
Comment
UC1609230
Layia glandulosa
Vernon H. Oswald and Lowell Ahart
1993-6-14
5535
Lassen
Eagle Lake Rd. (Lassen A1) at Sandy Beach (w shore of lake, ca 2.0 mi ene of Spaulding Tract Rd. (Rd 518, 33N89), dunes on n side of rd); Eagle Lake
1566
Comment
UC468843
Layia glandulosa
Franklin P. Nutting
Lassen
Dixey 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
HSC95338
Lemna minuta
Gordon Leppig, J. Cromwell
1997-7-27
621
Lassen
Modoc National Forest, Blue Lake Ranch.
1970
Comment
UC2046024
Lemna trisulca
Barbara L. Wilson with Richard Brainerd, Danna Lytjen, Bruce Newhouse and Nick Otting
2004-8-24
11166
Lassen
Snowstorm Creek, at a spring; upstream of Biscar Reservoir, west of an old railroad right of way.
Comment
HSC95343
Lemna valdiviana
Gordon Leppig, Juli Neander, Kai Neander
1997-7-26
697
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
CDA42959
Lepidium chalepense
L. 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.
Comment
UCD55157
Lepidium dictyotum
Ellen Dean
2006-5-15
3045
Lassen
E of town of Susanville. Along C.R. A27 (Center Rd.) Grounds of California Correctional Facility.
1247
Comment
UCD115696
Lepidium latifolium
T. C. Fuller
1962-8-28
9478
Lassen
75 sq. ft. infestation on east side of road, Hwy 395 to Litchfield, 4.7 miles south of Ravendale, Madelaine Plains.
Comment
CHSC36487
Lepidium perfoliatum
Margaret E. Halloran
1982-6-2
1
Lassen
Ca. 2 mi e jct of Hwy 139 and Ravendale Rd.
Comment
CHSC36502
Lepidium perfoliatum
Theresa Costa
1982-6-2
23
Lassen
Ca. 2 mi e jct Hwy 139 and Ravendale Rd, ca. 10 yd e Ravendale Rd.
Comment
CHSC4915
Lepidium perfoliatum
A. E. Anderson
1967-7-1
69
Lassen
North side of road 0.5 mi. e of Murrer Ranch buildings.
1371
Comment
CHSC525
Lepidium perfoliatum
J. Wakeman
1963-5-11
Lassen
1 mi. north of Honey Lake. Near Hot Springs.
Comment
CHSC64873
Lepidium perfoliatum
Vernon H. Oswald; Lowell Ahart
1995-6-19
6899
Lassen
Modoc Plateau. Between Litchfield and Ravendale on Smoke Creek Ranch Rd., 4.9 mi e of Hwy. 395. Near the road.
1383
Comment
CHSC91205
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
HSC63973
Lepidium perfoliatum
J. P. Smith, J. O. Sawyer
1971-5-23
4665
Lassen
Junction of Hwy. 139 and road to Thermo
Comment
UC1143000
Lepidium perfoliatum
August L. Hormay
1934-5-15
Lassen
nw of Black Mt.; Lassen National Forest, Forest and Range Expt. Sta.
1584
Comment
UCD115855
Lepidium perfoliatum
Grady L. Webster
1989-5-13
7713
Lassen
2.5 mi E of Beckworth Pass.
1493
Comment
RSA152592
Lepidium perfoliatum
I. L. Wiggins, Dorothy Wiggins
1961-6-11
16332
Lassen
13.5 mi. E of Susanville.
Comment
SEINET10448290
Lepidium perfoliatum
Mary Susan Taylor
1974-7-8
Taylor 259
Lassen
Ca. 1 mi N of Honey Lake, ca. 1 mi S of Standish, Honey Lake Wildlife Refuge.
Comment
CAS-BOT-BC12987
Lepidium virginicum
John Thomas Howell
1974-7-10
50531
Lassen
Sierra Nevada. Elysian Valley.
1325
Comment
JEPS53770
Lepidium virginicum var. virginicum
W. L. Jepson
1918-8-2
7763
Lassen
Beckwith Pass
1463
Comment
UCD63835
Leptochloa fusca subsp. fascicularis
Chandler Jensen
1959-9-8
Lassen
Honey Lake Valley near Standish.
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
CHSC25901
Leptosiphon harknessii
K. R. Stern
1967-6-24
2427
Lassen
Murrer Meadow Road, ca. 3 mi. E of Eagle Lake Biological Station.
1554
Comment
POM364710
Leptosiphon harknessii
J. T. Howell
1934-6-10
11844
Lassen
Near Plumas Junction
Comment
CHSC101047
Leucocrinum montanum
John Dittes
2008-5-22
1524
Lassen
Modoc Plateau; ca. 15.3 air miles southeast of Adin, ca. 3.5 air miles east of Hayden Hill, ca 465 feet east of intersection of Hwy 139 and FS Road 36N02; alluvial terrace and toe-slope on northeast side of Willow Creek.
483
Comment
UC1553405
Leucocrinum montanum
Gary Schoolcraft
1988-5-11
1794
Lassen
n of Said Valley Reservoir (along Hwy 139)
1676
Comment
POM71468
Leucophysalis nana
Marcus E. Jones
1897-6-30
s.n.
Lassen
Eagle Lake, 27 miles from Susanville
1524
Comment
HSC75895
Lewisia nevadensis
D. H. Norris, S. Dowty, Thomas W. Nelson
1971-6-22
19194
Lassen
Harvey Valley near Cone Springs
Comment
RSA59892
Lewisia nevadensis
E. K. Balls
1950-5-19
14773
Lassen
above Ash Creek Public Camp, off road from Adin to Madeline.
1646
Comment
CHSC36446
Lewisia rediviva
Jeffrey R. Peek
1982-6-1
23
Lassen
Ca 2 mi e of Horse Lake.
Comment
CHSC36501
Lewisia rediviva
Theresa Costa
1982-6-2
25
Lassen
Along Ravendale Rd ca. 2 mi e of Horse Lake.
Comment
UC803892
Leymus
G. L. Stebbins Jr.
1949-8-6
4007
Lassen
5 mi w Eagle Lake; McCoy Flat
1524
Comment
CDA7155
Leymus cinereus
G. Schoolcraft
1993-9-18
s.n.
Lassen
1 mile N of Sagehen on W side of Hwy 395.
Comment
JEPS87470
Leymus cinereus
Vernon H. Oswald and Lowell Ahart
1993-6-14
5543
Lassen
Eagle Lake Rd (Lassen A1) at Sandy Beach on w. shore of Eagle Lake (n. side of rd., ca 2.0 mi e.-n.e. of Spaulding Tract Rd. (Rd. 518, 33N89))
1566
Comment
RSA152594
Leymus cinereus
I. L. Wiggins, Dorothy Wiggins
1961-6-11
16336
Lassen
On hillside 13.5 mi. of Susanville
Comment
UC1037094
Leymus cinereus
Leo Whitney
1933-7-16
2207
Lassen
ca 16 mi w upper end of Eagle Lake; Lassen National Forest, Harvey Mountain
Comment
UC584329
Leymus cinereus
G. L. Stebbins Jr. and J. A. Jenkins
1937-7-8
2227
Lassen
6 mi s Ravendale
1660
Comment
UCD64268
Leymus cinereus
L. D. Whitney
1935-6-27
Lassen
Fruit Growers Supply Co. Camp #10.
Comment
SEINET239973
Leymus triticoides
G. L. Clifton
1996-6-5
34630
Lassen
East of Herlong close to the railroad.
1230
Comment
UC1037091
Leymus triticoides
Leo Whitney
1933-7-5
2215
Lassen
ca 8 mi nw Eagle Lake; Lassen National Forest, Slate Creek
1920
Comment
POM119423
Lilaea scilloides
Marcus E. Jones
1897-6-24
s.n.
Lassen
10 to 15 miles west from Amedee.
1219
Comment
CHSC112419
Limosella acaulis
Lowell Ahart; John Dittes, Todd Sloat
2013-6-8
18753
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
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
SEINET9337712
Limosella acaulis
Robert Thorne, DeBuhr, Larry
1975-8-22
47206
Lassen
Hwy 395
Comment
JEPS121274
Limosella aquatica
Lowell Ahart, John Dittes
2013-7-23
18889
Lassen
Man-made pond, about 150 yards NW of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley.
Comment
RSA252393
Limosella aquatica
Robert F. Thorne, C. W. Tilforth
1969-9-5
39137
Lassen
Said Valley Reservoir.
Comment
UCR208968
Linanthus ciliatus
Lowell Ahart
2005-6-2
11936
Lassen
about 1.5 miles NE of the Anderson Ranch home, Long Valley, c. 6 miles (air) north of the intersection of Scott Road and Hwy 70, 7.5 miles (air) northwest of Halleluja Junction
1601
Comment
UC1025087
Linanthus harknessii
Leo Whitney
1934-7-5
1788
Lassen
ca 15 mi w Eagle Lake (near Harvey Spring); Lassen National Forest, Crater Mountain
2225
Comment
CHSC6204
Linanthus pungens
1944-7-9
Lassen
Eagle Lake. Dow Butte.
2042
Comment
CDA6343
Linaria genistifolia subsp. dalmatica
T. C. Fuller
1963-7-15
10893
Lassen
Road to Pittville, 4.3 miles northwest of Little Valley.
0
Comment
CHSC106064
Linum lewisii var. lewisii
Lowell Ahart; John Dittes
2010-7-31
16981
Lassen
Dry meadow 10 yards northeast of the large culvert, where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin.
1516
Comment
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
CHSC61430
Linum lewisii var. lewisii
Vernon H. Oswald; Lowell Ahart
1993-8-18
5832
Lassen
Lassen Volcanic National Park. Summit ridge of Mt. Conard, near the S boundary of the park. Common in loose rock approaching the highest point on the ridge from the north.
2484
Comment
CAS-BOT-BC435427
Lithophragma glabrum
John Thomas Howell
1934-6-14
s.n.
Lassen
Near Lost Lake, Warner Mts.
1524
Comment
CHSC11773
Lithophragma tenellum
Wayne O. Baum
1971-6-15
71 -1
Lassen
South side of fire trail approx. 100 ft. from Rd. 5 at extreme S. E. corner of Gallatin Peak.
1920
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
UC496334
Lithophragma tenellum
Doris Kildale Gillespie
1930-5-13
9369
Lassen
between Susanville and Janesville
Comment
POM92082
Lithophragma tenellum
Marcus E. Jones
1897-6-28
s.n.
Lassen
Top of Diamond Mt. Susanville. Perkin's Ranch.
2226
Comment
SEINET208827
Loasaceae
Jack Major
1966-6-24
Lassen
Above Blue Lake, Warner Mountaind, northeastern Lassen County (ca. 18 miles airline southeast of Likely), California.
1905
Comment
CHSC7743
Lomatium
Beverly J. Wise
1969-5-3
113
Lassen
7.3 mi. east on Las. Ca. Rd.338, past junction with Hwy 395.
1645
Comment
CHSC60806
Lomatium bicolor var. leptocarpum
Vernon H. Oswald; Lowell Ahart
1993-6-28
5620
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
UC21192
Lomatium bicolor var. leptocarpum
M. S. Baker and Frank Nutting
1894-6-20
Lassen
Big Valley
Comment
UC604536
Lomatium bicolor var. leptocarpum
C. W. Sharsmith
1938-7-18
3633
Lassen
2 mi. s. Madeline (Madeline Plains); Madeline Plains
Comment
UCR183199
Lomatium macrocarpum
Jim Andre, G. L. Clifton
1993-6-2
7717
Lassen
Honey Lake, Honey Lake Valley, along Smoke Creek Valley Road, c. 10 mi west of the Nevada border, near Herlong Siding, south of Skedaddle Mtns
1243
Comment
CHSC7744
Lomatium nevadense
Beverley J. Wise
1969-4-13
116
Lassen
5.6 mi. east on Las. Co. Rd. 338 past the junction with Hwy 395.
1554
Comment
RSA0049670
Lomatium nevadense var. nevadense
Dean Wm. Taylor
2012-5-15
21196
Lassen
Windmill Flat vicinity; one mile north of the north end (watershed East Fork Juniper Creek, tributary to Pit River at Big Valley)
1676
Comment
UC1561383
Lomatium nevadense var. nevadense
Barbara Ertter with Gary Schoolcraft
1987-6-16
7185
Lassen
ridge w. Hot Springs VABM (Skeedaddle Mts., on n.e. side of Honey Lake); Skeedaddle Mts., Honey Lake
2133
Comment
SEINET5333506
Lomatium nevadense var. nevadense
D. H. French
1968-6-3
2883
Lassen
Near Hwy, 395, 1.1 mi S of Ravendale, just behind gas station-cafe-bar building.
Comment
UC1123085
Lomatium nevadense var. parishii
A. Simontacchi
1940-5-27
768 A
Lassen
9.3 mi NW of Crater Lake
1752
Comment
CHSC42627
Lomatium nudicaule
Vernon Oswald
1986-5-28
2047
Lassen
Hwy 36, 11.3 mi e of the Plumas-Lassen Co. line, 0.5 mi sw of Fredonyer Pass.
1691
Comment
RSA125874
Lomatium nudicaule
P. H. Raven, Otto T. Solbrig
1958-6-16
13250
Lassen
4.5 miles east of Westwood on Hwy 36
Comment
UC1167732
Lomatium nudicaule
Peter H. Raven with Otto T. Solbrig
1958-6-16
13250
Lassen
4.5 mi. e. Westwood (on State Hwy. 36)
Comment
UC1609377
Lomatium nudicaule
Vernon H. Oswald and Lowell Ahart
1993-6-28
5617
Lassen
s.-s.e. flank Harvey Mt. (n.-n.e. of Burgess Meadow, n.e. of Poison Lake, n. of Hwy. 44 on Rd. 33N06)
1798
Comment
JEPS103161
Lomatium plummerae
G. Schoolcraft
1996-5-13
2519
Lassen
Ft. Sage OHV area 3 mi. NE of Doyle
1402
Comment
CAS-BOT-BC217797
Lomatium ravenii
Lincoln Constance; E. DiFulvio
1962-4-16
3747
Lassen
1 mile S of Ravendale
1615
Comment
HSC69063
Lomatium ravenii
Gary Schoolcraft
212
Lassen
N of Shaffer Mountain
1357
Comment
LA35567
Lomatium ravenii
Lincoln Constance; Rimo Bacigalupi
1959-6-14
3672 ISOTYPE
Lassen
1 mi. S of Ravendale
1462
Comment
RSA0049612
Lomatium ravenii
Dean Wm. Taylor
2012-6-7
21233
Lassen
1 mile south of Ravendale (along Highway 395, 100 meters East of the highway ROW)
1615
Comment
UC1187686
Lomatium ravenii
Tracey and Viola Call
1961-5-30
2048
Lassen
ca. 2 mi. s. Ravendale
1463
Comment
UC1924598
Lomatium triternatum
Debra Valov
2006-5-28
2006008
Lassen
Bieber off County Rd A2 c. 8.7 km east of Hwy 299
1305
Comment
CHSC42629
Lomatium triternatum var. macrocarpum
Vernon Oswald
1986-5-28
2059
Lassen
Hwy 139 between Eagle Lake and Adin, 38.1 mi n of Susanville.
1645
Comment
RSA0049637
Lomatium triternatum var. triternatum
Dean Wm. Taylor
2012-6-19
21245
Lassen
Windmill Flat (tributary Juniper Creek, Pit River watershed, 11 miles S of Adin)
1706
Comment
JEPS127567
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. Buckhorn Lake 7.5' Quad,
Comment
RSA0049611
Lomatium vaginatum
Dean Wm. Taylor
2012-6-7
21232
Lassen
Grasshopper Valley; Grasshopper Valley Road 2.3 road miles E of junction with Highway 139
1635
Comment
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
UC21281
Lomatium vaginatum
Mrs. C. C. Bruce
June 1898
2286
Lassen
<Madaline> Plains
Comment
SEINET9672826
Lomatium vaginatum
G. Schoolcraft
1979-5-1
13
Lassen
East of Post Camp
1707
Comment
CAS-BOT-BC200923
Lotus
John Thomas Howell
1976-7-19
51953
Lassen
Southwest of Susanville on Gold Run Road
1341
Comment
CHSC60829
Lotus corniculatus
Vernon H. Oswald; Lowell Ahart
1993-6-28
5608
Lassen
N of Hwy 44 of Harvey Rd. One (34N27) 1.5 mi NE of Aspen Well, N of Harvey Valley, NE of Poison Lake.
1761
Comment
JEPS126486
Lotus corniculatus
Valda Lockie, Lillie Pennington, Jillian Pastick, Rachael Payer, Andrea Stuemky
2015-7-16
CA 350 -050
Lassen
Take Smoke Creek Road to Sand Pass Road. Turn left at Parker Reservoir.
Comment
UC1609455
Lotus corniculatus
Vernon H. Oswald and Lowell Ahart
1993-6-28
5608
Lassen
1.5 mi ne Aspen Well (n of Hwy 44 on Harvey Rd One (34N27), ne of Harvey Valley, ne of Poison Lake)
1761
Comment
POM28313
Lotus crassifolius
Marcus E. Jones
1897-6-25
s.n.
Lassen
Susanville.
1341
Comment
JEPS114702
Lotus denticulatus
Lowell Ahart, John Dittes
2008-6-20
14970
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 miles (air) northeast of Bieber
1263
Comment
CDA27197
Lotus denticulatus
T. C. Fuller
1963-6-1
10621
Lassen
West side of road to Susanville, 2.0 miles south of Pittville.
0
Comment
UC1129240
Lotus purshianus var. purshianus
A. Simontacchi
1940-6-30
903
Lassen
2.6 mi w Ladder Butte; Lassen National Forest, Halls Flat Quad.
1684
Comment
UC773895
Lotus purshianus var. purshianus
L. R. Short and J. Warren
1936-6-23
S- 447
Lassen
Burgess Spring Experiment Range Lassen Forest
Comment
RSA622143
Lupinus
B. J. Cox, Paul Gallian
1971-6-2
2590
Lassen
Approx. 6 mi. S. of Susanville at Jct. of U.S. Hwy 395 and Calif. Hwy 36 to Susanville, near Johnstonville.
1311
Comment
UC126936
Lupinus angustiflorus
M. S. Baker and Frank Nutting
1894-7-30
Lassen
Silver Leke Silver Lake
Comment
CHSC905
Lupinus arbustus
R. Gein
1946-6-20
Lassen
Mt. Fredonyer.
2133
Comment
SEINET12765226
Lupinus arbustus
Vernon H. Oswald
1997-6-24
8635
Lassen
South of Susan ville near the small pond on the crest of Diamond Mtn. about midway between Aspen Flat and Red Rock Lookout.; 0
2249
Comment
HSC63936
Lupinus arbustus subsp. calcaratus
Teresa Prendusi
1980-7-21
Lassen
Fredonyer Peak near summit
2393
Comment
NY732863
Lupinus arbustus subsp. calcaratus
G. Schoolcraft
1982-6-7
689
Lassen
Doyle Grade west of Doyle Ca.
1646
Comment
NY732864
Lupinus arbustus subsp. calcaratus
G. Schoolcraft
1985-6-12
1417
Lassen
1/2 mile south of Cleghorn Flat
1890
Comment
POM252845
Lupinus arbustus subsp. silvicola
A. A. Heller
1938-6-4
15142
Lassen
In open places near Fredonyer Pass.
1707
Comment
SEINET10841274
Lupinus arbustus subsp. silvicola
Billy Joe Cox, Paul Gallian
1971-6-2
Cox 2577
Lassen
6 miles s of adin; along cal hwy 139 right-of-way; in basalt-clay, grassy road Bank; artemisia juniper assoc
1372
Comment
UC1542916
Lupinus argenteus
G. Schoolcraft
1987-9-1
1773
Lassen
Ash Valley RNA
1554
Comment
CAS-BOT-BC208731
Lupinus argenteus var. heteranthus
M. S. Taylor
1982-6-12
4653
Lassen
Doyle, ca. 0.5 mi E of Hwy 395
Comment
CAS-BOT-BC208733
Lupinus argenteus var. heteranthus
E. K. Balls
1950-5-21
14824
Lassen
Standish, 7 mi. from junction of Hwy. 36 and 395.
1249
Comment
CAS-BOT-BC208744
Lupinus argenteus var. heteranthus
A. A. Heller
1938-6-23
15203
Lassen
Just outside of Johnstonville on U.S. Highway #395.
1280
Comment
CAS-BOT-BC208746
Lupinus argenteus var. heteranthus
John Thomas Howell
1934-7-10
12560
Lassen
Black's Mt.
Comment
CAS-BOT-BC208758
Lupinus argenteus var. heteranthus
J. H. Christ
1949-5-22
18218
Lassen
8 miles southeast of doyle, along Hwy 395
Comment
CHSC106069
Lupinus argenteus var. heteranthus
Lowell Ahart; John Dittes
2010-7-31
16977
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
UC1776671
Lupinus argenteus var. heteranthus
G. Schoolcraft
1993-6-10
2296
Lassen
Along Clark's Valley Road w. of Clark's Valley Ranch
1859
Comment
UC83091
Lupinus argenteus var. heteranthus
T. S. Brandegee
1892-6-23
Lassen
Honey Lake
Comment
UC1184055
Lupinus breweri
Jean Langenheim
1957-6-26
4401
Lassen
nw Said Valley (northeastern part of Lassen County); nw Said Valley
Comment
RSA687493
Lupinus caudatus
M. Bourell
1997-5-31
5879
Lassen
Wendel Road 10.9 miles southeast of Highway 395.
Comment
SEINET3145129
Lupinus caudatus
E. K. Balls
1950-5-9
15948
Lassen
6 mi S of Doyle
1372
Comment
UCR18734
Lupinus caudatus
Frank C. Vasek
1975-7-11
750711- 15
Lassen
Modoc Plateau, State Hwy 139, [Said Valley] 2 mi north of Grasshopper Valley at the junction with Termo Rd.
1650
Comment
SEINET12161686
Lupinus caudatus
N. E. Heiken
1978-1
57
Lassen
SE of Eagle L. T31N R11E Sec22
1554
Comment
RSA0029190
Lupinus confertus
John F. Emmel
1997-6-8
1490
Lassen
At Hwy. 395 crossing of Secret Creek, on hill and slope 0.2-0.3 air mi WSW of the crossing, 2.7 road mi north of Karlo Road junction.
1448
Comment
UCD108200
Lupinus latifolius var. columbianus
Jack Major
1966-6-24
s.n.
Lassen
above Blue Lake, Warner Mounains, Modoc National Forest, northeastern part of county (ca. 18. miles airline southeast of Likely).
Comment
NY747209
Lupinus lepidus var. confertus
G. Schoolcraft
1983-6-29
1039
Lassen
Coulthurst Flat
1890
Comment
SEINET5332986
Lupinus lepidus var. confertus
R. R. Halse
2004-7-22
6670
Lassen
Along U.S. Hwy 395, ca. 7.8 miles southeast of Susanville.
1293
Comment
CHSC60355
Lupinus lepidus var. lobbii
Mary Ann Showers
1992-6-27
2602
Lassen
Lassen Volcanic National Park. Pumice Flat northwest of Crescent Crater.
2194
Comment
UC126929
Lupinus leucophyllus
M. S. Baker and Frank Nutting
1894-7-21
Lassen
near Eagle Lake; near Eagle Lake
1524
Comment
NY747375
Lupinus leucophyllus var. leucophyllus
H. D. D. Ripley
1943-6-13
5679
Lassen
Milford
1265
Comment
UC199306
Lupinus microcarpus var. microcarpus
Franklin P. Nutting
Lassen
Dixey Mts. South side
Comment
SBBG67020
Lupinus obtusilobus
S. W. Hutchinson
-Jun-1925
525
Lassen
Eagle Lake
1554
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
RSA18697
Lupinus onustus
Marcus E. Jones
1887-06
s.n.
Lassen
Susanville
Comment
CHSC7671
Lupinus polycarpus
Beverley J. Wise
1969-5-4
62
Lassen
0.5 mi west on Shaeffer Mtn lookout access road from junction with Hwy 395. 24.4 mi E. of Susanv.
1615
Comment
NY747611
Lupinus polyphyllus var. saxosus
H. D. D. Ripley
1944-5-30
5982
Lassen
2 miles south of Madeline
1707
Comment
SEINET10486220
Lupinus saxosus
Billy Joe Cox, David B. Dunn
1971-6-2
Cox 2593
Lassen
Approx. 12 Mi s of adin on state hwy. 139. In basalt and clay; along edge of Road on rolling knoll, in artemisia-juniper association.
1372
Comment
SEINET10488913
Lupinus sellulus
Katherine L. Morris
1973-5-25
Morris 220
Lassen
Collected at 3.5 mi w of susanville, on u.s. 36, In an area of yellow pine and Purshia.
Comment
SEINET10490263
Lupinus subvexus var. transmontanus
David B. Dunn
1956-7-3
Dunn 11925
Lassen
Collected on roadside among volcanic rocks. Along hwy 395, 5.5 mi s of likely, Before dropping into valley. Color lavender. Sagebrush common.
Comment
SEINET7949966
Lycopus asper
T. L. Breene, H. Sampson
1937-1
56
Lassen
Honey Lake Valley.
Comment
CHSC65313
Lycopus uniflorus
Vernon H. Oswald
1995-8-21
7208
Lassen
Warner Mtns. Blue Lake located ca. 13 mi SE of Likely. On the edges of the lake and on floating bogs.
1859
Comment
HSC95307
Lycopus uniflorus
Gordon Leppig, J. Cromwell
1997-7-27
625
Lassen
Modoc National Forest, Blue Lake Ranch.
1970
Comment
HSC95311
Lycopus uniflorus
Gordon Leppig
1998-8-17
1051
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
SEINET3155222
Machaerocarpus californicus
M. E. Jones
1897-6-24
sn
Lassen
10 to 15 miles west from Amedee
1219
Comment
POM253193
Madia bolanderi
A. A. Heller
1937-9-1
15342
Lassen
Wet ground in a Tamrack swamp about 1 mile E of Westwood.
1524
Comment
CAS-BOT-BC342656
Madia citriodora
David D. Keck; J. Clausen
1935-6-25
3761
Lassen
Susanville
1300
Comment
CAS-BOT-BC343697
Madia elegans
John Thomas Howell
1974-7-10
50556
Lassen
Elysian Valley
1325
Comment
UCD134243
Madia elegans
J. E. Stuart
1929-8-1
2035
Lassen
Roy Hardwood Ranch, Milford.
Comment
POM29905
Madia elegans subsp. elegans
Marcus E. Jones
1897-6-26
s.n.
Lassen
Susanville, Perkin's Ranch.
1463
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
UC89366
Madia exigua
T. S. Brandegee
1892-6-30
Lassen
Janesville
Comment
UC905684
Madia glomerata
David D. Keck
1930-7-23
955
Lassen
15 mi w Susanville; Sierra Nevada
1525
Comment
CAS-BOT-BC512878
Maianthemum stellatum
Louella Bass
1973-6-17
120
Lassen
Elysian Valley
1325
Comment
SJSU10452
Maianthemum stellatum
H. L. Buckalew
1961-7-9
Lassen
spring near Blue Lake, Warner Mts
1828
Comment
CAS-BOT-BC347439
Malacothrix floccifera
Louella Bass
1974-7-1
EV 153
Lassen
Elysian Valley
1325
Comment
CHSC80607
Malacothrix glabrata
V. H. Oswald; B. Corbin, K. Earll, G. Schoolcraft
2001-6-2
10038
Lassen
North-northeast of Doyle on a dirt road bordering the east side of Turtle Mountain.
1828
Comment
CAS-BOT-BC348029
Malacothrix torreyi
G. Schoolcraft
1989-5-31
1885
Lassen
About 4 mi. n. Wendel Rd. along Skedaddle Ranch Rd.
Comment
CHSC4978
Malva neglecta
R. Clicquennoi
1967-6-23
11
Lassen
In a large vernal pool area 1/4 mi n of Eagle Lake Biology Station, e central side of Eagle Lake.
1554
Comment
JEPS124804
Malva neglecta
Peter Schultz
1967-7-2
172
Lassen
1 mile south of Milford city limit. Highway 395.
Comment
RSA312311
Malvella leprosa
Verne Grant, Irving Schneider
1947-9-6
8386
Lassen
Hot springs about one mile west of Wendel.
Comment
CAS-BOT-BC71144
Marsilea
Clarence R. Quick
1962-6-17
62 -26
Lassen
Swains Hole, south of Blacks Mountain Experimental station
1554
Comment
UC62421
Marsilea oligospora
Baker and Nutting
1894-7-12
Lassen
Pine Creek
Comment
HSC25433
Marsilea vestita
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19177
Lassen
Harvey Valley near Cone Springs
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
CHSC29877
Matricaria occidentalis
Robin L. Ondricek
1978-8-26
127
Lassen
At roadside ca. .5 mi n of turn-off to ELFS on Hwy 139.
1493
Comment
CAS-BOT-BC348267
Matricaria occidentalis
M. S. Taylor
1982-6-12
4651
Lassen
In Hartson Lake Refuge, ca. 1 mi n of Hartson Lake on n side of Honey Lake, ca. 13 mi se of Susanville
1222
Comment
JEPS88240
Medicago lupulina
Vernon H. Oswald and Lowell Ahart
1996-6-17
7812
Lassen
ca. 7 mi. w. Susanville (Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36, on edge of trail at the 6.0 mi. post e. of Devils Corral Trailhead); Modoc Plateau, Bizz Johnson Trail
1420
Comment
CAS-BOT-BC271118
Melica bulbosa
G. Schoolcraft
1995-5-17
2490
Lassen
Three Springs on S slope of Five Springs Mtn.
1524
Comment
UCD86379
Melica bulbosa
L. Whitney
1935-7-11
3226
Lassen
Camp 10, Fruit Grower's Supply Company. Lassen National Forest.
Comment
UCD87270
Melica fugax
Beecher Crampton
1960-6-18
5707
Lassen
Lassen County (N.E.): southern Warner Mountain, Long Valley, 6 miles southeast of Jess Valleys.
2133
Comment
CHSC30586
Melilotus indicus
P. V. Caldwell
1972-6-30
270
Lassen
Jct. of Horse Lake Rd. and Hwy. 395.
Comment
CHSC1017
Mentzelia albicaulis
C. Palmiter
1946-6-13
Lassen
Spaulding's, Eagle Lake.
1554
Comment
CHSC106171
Mentzelia albicaulis
Lowell Ahart; John Dittes
2010-8-30
17089
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
CHSC71128
Mentzelia albicaulis
Vernon H. Oswald
1998-5-22
9137
Lassen
Fort Sage Rd. 2.3 mi north of Hackstaff Rd., ca. 3.5 mi north of Doyle.
1341
Comment
SFV12339
Mentzelia albicaulis
J. Major
1966-6-24
s. n.
Lassen
Warner Mountains Above Blue Lake, about 18 miles (airline) southeast of Likely.
1905
Comment
UC1609094
Mentzelia albicaulis
Vernon H. Oswald and Lowell Ahart
1993-7-8
5654
Lassen
1.9 m N Hwy. 44 (on the SE edge of Poison Lake.); Pittville Rd.(Lassen 111,36N01); T32N R7E SE1/4 SE 1/4 Sec. 4
1709
Comment
CHSC23509
Mentzelia congesta
Wayne O. Baum
1971-7-19
71 -72
Lassen
S. slope of Gallatin Peak.
2042
Comment
RSA32753
Mentzelia dispersa
A. A. Heller
1938-6-22
15184
Lassen
Mile east of Westwood.
1524
Comment
RSA152663
Mentzelia dispersa
I. L. Wiggins, Dorothy Wiggins
1961-6-10
16323
Lassen
Along California Highway 36 abut 6 miles W of Sussanville.
Comment
JEPS95001
Mertensia ciliata
Vernon Oswald and Lowell Ahart
1997-6-24
8617
Lassen
2.7 mi e of Lassen National Forest boundary (7.4 mi e of Gold Run Road (29N10), s of Susanville on n side of Diamond Mountain at an impoundment on the edge of Forest Road 29N43); Diamond Mountain, Forest Road 29N43
2036
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
SD8330
Micranthes odontoloma
Mrs. R. M. Austin
1879-1
Lassen
Lassen Peak
Comment Read comments Apr 29 2013
NY539941
Micromonolepis pusilla
A. Tiehm
1986-5-12
10351
Lassen
1 road mile west of the state line on the dirt road from highway 395 to Smoke Creek, south side of Rush Creek
1341.1
Comment
SEINET5345127
Micromonolepis pusilla
A. Tiehm
1980-1
5757
Lassen
North end of Honey Lake Valley, 2 air miles NW of Wendel
1231
Comment
CHSC60877
Microseris laciniata subsp. laciniata
Vernon H. Oswald; Lowell Ahart
1993-7-8
5670
Lassen
Halls Flat Rd. (33N18), 1.4 mi SSW of Pittville Rd. (Lassen 111, 36N01), ca. 5.4 mi (air) NW of Poison Lake. On the W side of the road.
1694
Comment
JEPS118158
Microseris laciniata subsp. laciniata
Dean W. Taylor
2009-5-21
20606
Lassen
Susanville; Susanville Peak, northerly flank along logging roads ca. 1.5 air miles E of Round Valley Reservoir
1706
Comment
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
CHSC106089
Microseris nutans
Lowell Ahart; John Dittes
2010-7-31
17000
Lassen
Dry meadow, on the north side of the road, about 30 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
CHSC117189
Microseris nutans
Lowell Ahart; John Dittes
2016-6-7
21022
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
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-BC349297
Microseris nutans
Clarence R. Quick
1961-6-21
61 -34
Lassen
0.8 mile north off Road 1, Blacks Mountain Experimental Forest, northeast of Lassen Peak
1798
Comment
CHSC71094
Microsteris gracilis
Vernon H. Oswald; Lowell Ahart
1998-5-22
9100
Lassen
Hackstaff Rd. 1.0 mi south of Laver Crossing Rd., 0.2 mi north of Fort Sage Rd., ca. 3 mi north of Doyle.
1316
Comment
CHSC7702
Microsteris gracilis
Beverley J. Wise
1969-4-13
42
Lassen
2.4 mi. east of junction Hwy 395 and Las. Co. Rd. 388 (Smoke Creek Road).
1371
Comment
JEPS120864
Microsteris gracilis
Lowell Ahart, John Dittes, Todd Sloat
2013-6-8
18741
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
RSA122927
Microsteris gracilis subsp. gracilis
Anonymous
1936-5-7
S- 343
Lassen
Lassen National Forest, MDM, Burgess Spr. Exp. Range
1738
Comment
NY963937
Microsteris gracilis var. humilior
V. E. Grant
1956-5-18
9802
Lassen
About 8 miles south of Madeline
1280
Comment
UC1609128
Mimulus breviflorus
Vernon H. Oswald and Lowell Ahart
1993-7-8
5652
Lassen
1.9 mi n Hwy. 44 (Pittville Rd. (Lassen 111, 36N01), se edge of lake, on the e side of the railroad, which parallels the lake shore at this point); Poison Lake
1709
Comment
UC1037226
Mimulus breweri
Leo Whitney
1933-8-14
1596 a
Lassen
ca. 8 mi nw Eagle Lake; Lassen National Forest, Slate Creek
1920
Comment
SEINET230131
Mimulus densus
Noel H. Holmgren, Patricia K. Holmgren
1980-1
9512
Lassen
Observation peak, S side of mountain, 18 km (11 mi) airline distance E of Ravendale
2190
Comment
CHSC118485
Mimulus evanescens
Allison Sanger; Loren Gehrung
2003-6-11
Lassen
Lassen National Forest. Eagle Lake Ranger District. Near Rankin Flat west of Spalding, roughly 1.2 air miles west of Eagle Lake marina.
1822
Comment
CHSC117184
Mimulus guttatus
Lowell Ahart; John Dittes
2016-6-7
21009
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
UC27028
Mimulus guttatus
Mrs. C. C. Bruce
June 1898
2276
Lassen
Shumway
Comment
JEPS23735
Mimulus inflatulus
Rimo Bacigalupi with S. Galen Smith
1957-6-28
5989
Lassen
7.0 mi n of Madeline (about 1 mi n of Sage Hen siding on Southern Pacific Railroad, just e of U.S. Highway 395)
1676
Comment
JEPS97419
Mimulus latidens
Vernon H. Oswald and L. Ahart
1995-6-19
6887
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
1350
Comment
JEPS107380
Mimulus mephiticus
Lowell 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
1448
Comment
JEPS94563
Mimulus mephiticus
Vernon Oswald and Lowell Ahart
1997-6-24
8597
Lassen
on Forest Rd. 29N43 1.2 mi e Gold Run Rd. (29N10) (n side of mt., s of Susanville); Diamond Mtn.
1685
Comment
SEINET10863348
Mimulus nanus
Paul Gallian, David B. Dunn
1971-6-2
Gallian 518
Lassen
6 mi n of hallelujah jct on us hwy 395 in artemisia tridentata, pinyon pine, Jeffery pine along high ridge and in sandy wash.
1402
Comment
RSA126736B
Mimulus nanus var. mephiticus
Milo S. Baker
1890-1
s.n.
Lassen
Milford. Honey Lake Valley.
Comment
UC1567374
Mimulus nanus var. mephiticus
G. Schoolcraft
1989-6-17
1909
Lassen
nw slope Shaffer Mtn.
1828
Comment
UC1609130
Mimulus nanus var. nanus
Vernon H. Oswald and Lowell Ahart
1993-6-3
5482
Lassen
1.8 mi n Lassen 21 (32N02) to Eagle Lake (Champs Flat Rd. (Lassen 105, Forest 32N28Y), nw edge of valley, between Poison Lake and Susanville); Pine Creek Valley
1728
Comment
JEPS88207
Mimulus pulsiferae
Vernon H. Oswald and Lowell Ahart
1996-6-24
7865
Lassen
Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake; Modoc Plateau, Montane Meadow in Yellow Pine Forest. On the W side of the meadow ca. 0.2 mi S of the cabins.
1633
Comment
RSA536396
Mimulus pygmaeus
Beth Corbin
1991-6-26
633
Lassen
Big Merrill Flat. 14 miles NW of Susanville.
1790
Comment
RSA536398
Mimulus pygmaeus
Beth Corbin, Kim Earll, Steve Klukkert
1991-7-2
634
Lassen
0.25 mile SE of Robbers Spring, 70 ft SSW of Hwy 44, 3.5 miles NW of USFS Bogard Work Center.
1098
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
JEPS94562
Mitella pentandra
Vernon Oswald and Lowell Ahart
1997-6-24
8615
Lassen
slope along Forest Rd. 29N43 5.4 mi e Gold Run Rd. (n side of mtn., s of Susanville); Diamond Mtn.
1889
Comment
CHSC29936
Monardella odoratissima subsp. glauca
Robin L. Ondricek
1978-6-27
79
Lassen
Pine Creek, sw of the bridge which crosses the creek just upstream (sw) of the California Dept. of Fish and Game's fish milking station.
1566
Comment
CHSC65314
Monardella odoratissima subsp. glauca
Vernon H. Oswald; Lowell Ahart
1995-8-14
7192
Lassen
Modoc Plateau. Horse Lake Rd. (Lassen 536) 2.5 mi W of Hwy. 395 at a small intermittent stream, N of Susanville.
1676
Comment
CHSC5271
Monardella odoratissima subsp. pallida
M. West
1946-7-12
Lassen
Silver Lake.
1981
Comment
UC1537599
Monardella odoratissima subsp. pallida
Gordon H. True Jr.
1938-7-14
961
Lassen
Just north of summit Milford Grade
1767
Comment
UC25488
Monardella odoratissima subsp. pallida
M. S. Baker and Frank Nutting
1894-7-28
Lassen
mts. s Eagle Lake
Comment
UC1136461
Monolepis nuttalliana
A. Simontacchi
1940-6-4
810
Lassen
14.8 mi. w. Harvey Mt. Lookout; Lassen Nat'l Forest, Halls Flat Quad.
1783
Comment
CAS-BOT-BC444692
Montia chamissoi
John Thomas Howell
1934-6-14
s.n.
Lassen
Near Lost Lake, Warner Mts.
2438
Comment
HSC95205
Montia chamissoi
Gordon Leppig, Tony LaBanca, Leonel Arguello
1997-6-29
542
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
NY497723
Montia chamissoi
N. H. Holmgren
1978-6-11
8917
Lassen
Vicinity of spring at fork to Painters Flat on east side of Observation Peak, 28 km (17.4 miles) east of Ravendale and 22.5 km (14 miles) airline distance
1680
Comment
CHSC54192
Montia linearis
Vernon H. Oswald
1991-5-28
4619
Lassen
Wayman Barn at the west end of Hunt Rd, Ash Creek Wildlife Area, ca. 5 miles northeast of Bieber. Locally abundant on the bed of a drying vernal pool on an undulating sagebrush flat east of the barn.
1264
Comment
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
JEPS88525
Montia linearis
Vernon H. Oswald and Lowell Ahart
1996-6-24
7875
Lassen
Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake. Modoc Plateau, Montane Meadow in Yellow Forest.
Comment
CAS-BOT-BC262636
Muhlenbergia asperifolia
C. S. Robinson
1928-9-18
120
Lassen
Lassen National Forest. Hanna Estate, Morgan Springs. Around Sulphur Springs
1508
Comment
CHSC93667
Muhlenbergia asperifolia
Lowell Ahart; John Dittes
2005-6-2
11972
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
JEPS70578
Muhlenbergia asperifolia
W. L. Jepson
1918-8-2
7780
Lassen
seepage swale below spring Beckwith Pass
1463
Comment
UC1024645
Muhlenbergia asperifolia
Leo Whitney
1934-7-4
2212
Lassen
sand dunes near north shore; Lassen National Forest, Eagle Lake
1584
Comment
UCD86528
Muhlenbergia asperifolia
August L. Hormay
1932-8-12
s.n.
Lassen
Lassen National Forest. South E edge of Eagle Lake.
Comment
UCD86548
Muhlenbergia asperifolia
John Thomas Howell; Gordon H. True
1973-8-1
50147
Lassen
Roadside in Mountain Meadows east of Westwood.
1554
Comment
UC589840
Muhlenbergia filiformis
H. S. Yates
1936-8-12
6081
Lassen
McKenzie Meadow Susanville Quadrangle
1524
Comment
CAS-BOT-BC275333
Muhlenbergia jonesii
John R. Reeder; Charlotte G. Reeder
1973-7-1
6240
Lassen
Ca. 25 miles NW of Susanville along State Highway 44 in Lassen National Forest
1767
Comment
RSA256323
Muhlenbergia jonesii
J. R. Reeder, C. G. Reeder
1973-6-5
6238
Lassen
Vicinity of Silver Lake, 22 miles NW of Susanville along Hwy 44
1768
Comment
RSA256324
Muhlenbergia jonesii
J. R. Reeder, C. G. Reeder
1973-7-1
6240
Lassen
25 miles NW of Susanville along Hwy 44 in Lassen Nat'l Forest
1768
Comment
RSA256322
Muhlenbergia richardsonis
J. R. Reeder, C. G. Reeder
1973-6-5
6236
Lassen
35 miles NW of Susanvill, near Pittville sing on Hwy 44
1738
Comment
RSA268996
Muhlenbergia richardsonis
J. R. Reeder
1972-7-24
5806
Lassen
Lassen National Park
1921
Comment
SJSU4296
Muhlenbergia richardsonis
J. W. Tilden
1960-6-27
1511
Lassen
outskirts of Westwood, foot of Moonlight Rd
1524
Comment
UC507007
Muhlenbergia richardsonis
George A. Fischer and Irwin H. Johnson
1933-7-12
F- 196
Lassen
Dry Lake Lassen <National> Forest, Grass Valley
1694
Comment
UCD86899
Muhlenbergia richardsonis
Beecher Crampton
1954-7-6
2073
Lassen
17 miles south of Ravendale, along US highway 395.
1524
Comment
CHSC57215
Muilla transmontana
Mary Meyer
1980-5-20
523
Lassen
On mesa 1 mi due east of BLM campground and spring, north of Snowstorm Mountain.
1645
Comment
CAS-BOT-BC515650
Muilla transmontana
H. D. Ripley; R. C. Barneby
1944-5-29
5953
Lassen
South of Jamesville
1280
Comment
JEPS107308
Myosotis discolor
Lowell Ahart, John Dittes
2005-6-1
11896
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
CHSC54193
Myosurus minimus
Vernon H. Oswald
1991-5-28
4621
Lassen
Wayman Barn at the west end of Hunt Rd, Ash Creek Wildlife Area, ca. 5 miles northeast of Bieber. On the beds of vernal pools east of the barn.
1264
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
UC1191974
Myriophyllum sibiricum
Verne Grant and Irving Schneider
1947-9-5
8371
Lassen
NW shore of Eagle Lake by Sam Webb's place (Spaulding).
Comment
RSA0043136
Nama aretioides var. californica
Christopher Davidson
1975-6-7
2760
Lassen
1 mile E of Beckwourth Pass on Hwy 70.
1524
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
CHSC60745
Nama densa var. densa
Vernon H. Oswald; Lowell Ahart
1993-6-14
5539
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). In dry sand between clumps of brush on the N side of the road.
1566
Comment
JEPS107795
Nama densa var. densa
Lowell Ahart, John Dittes
2005-6-1
11908 -A
Lassen
On the east side of Scott Road, Long Valley, about 4 3/4 miles (air) north of the intersection of Scott Road and Highway 70, 5.7 miles (air) northwest of Hallelujah Junction
1460
Comment
UC1483804
Nama densa var. parviflora
G. Schoolcraft
1980-7-10
300
Lassen
n end Eagle Lake Eagle Lake; n end Eagle Lake
1584
Comment
CAS-BOT-BC60340
Nasturtium officinale
D. L. Stites
1967-6-24
29
Lassen
Collected ca. 3.5 miles southeast ELBS Upper Murrer Meadow.
1524
Comment
SEINET5624608
Nasturtium officinale
L. E. Ray
1967-1
29
Lassen
ca. 3.5 mi SE ELBS Upper Murrer Meadow
1524
Comment
CHSC9067
Navarretia
Silas Carr
1970-6-24
126
Lassen
E. edge of road entering N. portion of Murrers Meadow.
Comment
RSA0011498
Navarretia
R. F. Thorne, Larry E. DeBuhr
1975-8-22
46974
Lassen
Along Highway 395 ca. 6 miles north of Madeline and 4.5 miles south of Modoc county line.
1616
Comment
CHSC4873
Navarretia breweri
R. Carter
1967-6-23
543
Lassen
Ca. 5 yds. off N side of road.
Comment
JEPS94539
Navarretia breweri
Vernon Oswald and Lowell Ahart
1997-6-24
8605 .2
Lassen
s of Susanville (on n side of Diamond Mountain at a stream on Forest Road 29N43, 3.5 mi e of Gold Run Road (29N10)); Diamond Mountain, Forest Road 29N43
1655
Comment
SD3921
Navarretia breweri
T. S. Brandegee
1892-7-1
Lassen
Susanville
Comment
SEINET200215
Navarretia divaricata
C. McMillan
1949-6-15
1541
Lassen
Five miles west of Bieber
Comment
CHSC99105
Navarretia intertexta
Lowell Ahart; John Dittes
2008-6-22
15028
Lassen
Along a small natural drainage, about 120 yards west of the road levee, in Big Valley, about 2.1 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 5.0 miles (air) northeast of Bieber.
1262
Comment
SEINET3894760
Navarretia intertexta
Leigh A. Johnson, Haley M. Smith
2011-6-25
11 -065
Lassen
Along Hwy 299 about 9.4 miles east of jct with Hwy A2 and 1.4 west of jct with Hwy 139, southwest of Adin.; 0
Comment
POM74488
Navarretia intertexta
Marcus E. Jones
1897-7-1
10134
Lassen
7 miles south of Susanville at Perkin's Ranch
1524
Comment
CHSC23856
Navarretia intertexta subsp. propinqua
Glenda Foster
1975-7-12
101
Lassen
Along edges of Fall River Mills Road ca. 1 mile n of Highway 44.
Comment
UC1594648
Navarretia intertexta subsp. propinqua
Vernon H. Oswald and Lowell Ahart
1992-7-16
5101
Lassen
1.2 mi se County Rd. A21 (Long Lake on the s of Hwy 44, between Old Station and Susanville); Long Lake
1745
Comment
UC909095
Navarretia intertexta subsp. propinqua
G. L. Stebbins Jr.
1949-8-6
4001
Lassen
nw of Susanville; Hog Flat
1676
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
CHSC67574
Navarretia leucocephala subsp. leucocephala
James Jokerst
1983-7-24
1878
Lassen
Near madeline Plains. Vernal pool.
1614
Comment
CHSC110909
Navarretia leucocephala subsp. minima
Lowell Ahart; John Dittes
2012-7-9
18288
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
CHSC112444
Navarretia leucocephala subsp. minima
Lowell Ahart; John Dittes, Todd Sloat
2013-6-8
18778
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
JEPS19814
Navarretia leucocephala subsp. minima
Rimo Bacigalupi with S. Galen Smith
1957-6-28
6001
Lassen
3.1 mi s Madeline (along U.S. Highway 395); Madeline Plains
1615
Comment
UC1058208
Navarretia leucocephala subsp. minima
C. McMillan
1949-6-15
1542
Lassen
5 mi w Bieber
Comment
UC1137761
Navarretia leucocephala subsp. minima
August L. Hormay
1934-5-15
Lassen
2 mi n Eldridge's; Lassen Forest
1524
Comment
UC1191627
Navarretia leucocephala subsp. minima
Verne Grant and Irving Schneider
1947-7-31
8208
Lassen
ne quarter of George Williams section 19 Madeline Plain
Comment
UC909096
Navarretia leucocephala subsp. minima
G. L. Stebbins Jr.
1949-8-6
4003 a
Lassen
between Susanville and McArthur (edge of Feather Lake); Feather Lake
1676
Comment
CAS-BOT-BC230389
Navarretia leucocephala subsp. minima
Lincoln Constance
1946-7-3
s.n.
Lassen
Madeline Station
Comment
UC1143039
Navarretia linearifolia subsp. linearifolia
L. R. Short and Wm. Gansberg
1936-7-3
S- 472
Lassen
Burgess Spr. Exp. Range Lassen National Forest
1844
Comment
UC773906
Navarretia linearifolia subsp. linearifolia
L. R. Short and Wm. Gansberg
1936-7-3
S- 472
Lassen
Burgess Spr. Exp. Range Lassen National Forest
1844
Comment
POM74669
Navarretia sinistra
Marcus E. Jones
1897-6-26
10226
Lassen
Susanville, Perkin's Ranch.
1463
Comment
CHSC110778
Navarretia sinistra subsp. sinistra
Dean Wm. Taylor
2012-7-18
21281
Lassen
Cascade Ranges. Windmill Flat (tributary Juniper Creek, Pit River watershed, 11 miles S of Adin).
1706
Comment
HSC103518
Navarretia sinistra subsp. sinistra
Thomas W. Nelson, Jane Nelson
1986-6-23
8164
Lassen
Along State Route 44, 14.5 mi. NW of junction with State Route 36.
1646
Comment
SEINET10972223
Nemacladus capillaris
Hardham
1961-6-16
HARDHAM 7450
Lassen
Gold Run Creek south of Susanville
Comment
CAS-BOT-BC219366
Nemophila
Louella Bass
1973-4-15
26
Lassen
Elysian Valley
1325
Comment
RSA38472
Nemophila parviflora var. austiniae
P. A. Munz
1947-5-18
11860
Lassen
Fredonyer Forestry Public Camp Ground. W of Susanville.
1509
Comment
JEPS114643
Nemophila pedunculata
Lowell Ahart, John Dittes
2008-6-20
14918
Lassen
About 100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber
1263
Comment
JEPS126535
Nemophila pedunculata
Lowell Ahart, John Dittes
2016-6-7
21010
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.
Comment
UC20413
Neoholmgrenia andina
Mrs. R. M. Austin and Bruce
June 1898
2364
Lassen
Shumway
Comment
HSC22942
Nicotiana acuminata
John Pratt
1970-6-27
46
Lassen
0.5 mi. E of Turtle Head
1220
Comment
CHSC13791
Nicotiana attenuata
Anne Linda Brisk
1969-7-10
45
Lassen
1/4 mi N of ELBS.
1554
Comment
JEPS12268
Nicotiana attenuata
W. L. Jepson
1939-8-12
19410
Lassen
sw of Dixie Valley
Comment
UC584293
Nothocalais troximoides
G. L. Stebbins Jr. and J. A. Jenkins
1937-7-10
2309
Lassen
w Milford; crest of range head of Stony Ridge
1950
Comment
UC635505
Nuphar lutea subsp. polysepala
Dorothy Tebbe
1929-7-30
132
Lassen
in a pond near Lake Almanor
Comment
RSA0009447
Nuphar lutea subsp. polysepala
Marcus E. Jones
1897-6-24
s.n.
Lassen
10 to 15 miles west from Amedee.
1219
Comment
CHSC71093
Oenothera deltoides subsp. piperi
Vernon H. Oswald; Lowell Ahart
1998-5-22
9095
Lassen
Hwy. 395 at an intermittent drainage crossing the road 2.3 mi south of Milford. On roadside banks along this section of highway.
1255
Comment
JEPS29737
Oenothera deltoides subsp. piperi
Rimo Bacigalupi and L. R. Heckard
1962-5-28
8492
Lassen
along US Hwy 395 10 mi s Milford
1219
Comment
SEINET10491875
Oenothera deltoides subsp. piperi
Billy Joe Cox, Paul Gallian
1971-6-2
Cox 2591
Lassen
Approx 6 mi s of susanville at jct of us hwy 395 and calif hwy 36 to susanville, near johnstonville. Assoc; purshia-artemesia.
1311
Comment
SEINET5345661
Oenothera deltoides var. piperi
M. J. Williams
1968-6-1
s.n.
Lassen
Near Doyle
1372
Comment
UCR71445
Oenothera elata subsp. hirsutissima
Barbara Ertter
1987-7-24
7304
Lassen
Eastern Sierra Nevada Mountains, c. 3/4 mi east-northeastof Beckwourth Pass at end of old paved road
1524
Comment
UC157874
Olsynium douglasii var. douglasii
Milo S. Baker
1890-1
Lassen
Milford
Comment
CHSC29938
Onobrychis viciifolia
Robin L. Ondricek
1978-6-6
71
Lassen
1.2 mi from Hwy 139 on the road to Eagle Lake Field Station.
1499
Comment
UC2027324
Oreostemma alpigenum var. andersonii
Anthony Baniaga
2011-8-9
491
Lassen
Lassen National Forest. About 1/2 mi W of Griffith Hill, S of 30N21. Swain Mountain quadrangle
Comment
UC831401
Oreostemma alpigenum var. andersonii
A. A. Heller
1937-9-1
15343
Lassen
1 mi e Westwood
1524
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
CDA42001
Orobanche corymbosa
T. C. Fuller
1980-8-5
20313
Lassen
Along east side of Tuledad Road, 7.4 km. southeast of the campground on the east shore of Dodge Reservoir, northeast of Ravendale.
0
Comment
UC1136756
Orobanche corymbosa subsp. corymbosa
L. R. Short and J. Warren
1936-6-30
S- 465
Lassen
NW of Eagle Lake, Burgess Spring Experiment Range.
Comment
CAS-BOT-BC500324
Orobanche uniflora subsp. occidentalis
H. C. Cantelow
1941-5-22
s.n.
Lassen
Fredonyer Pass, 18.5 mi W of Susnville, Hwy 36
Comment
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
CHSC12936
Orthocarpus cuspidatus subsp. cryptanthus
K. R. Stern
1974-6-26
5870
Lassen
N margin of meadow on s side of Hwy. 44, 5.6 mi n of intersection with County Rd. A-21 to Westwood.
Comment
POM82799
Osmorhiza occidentalis
Marcus E. Jones
1897-7-2
s.n.
Lassen
Susanville Summit
1829
Comment
SD7584
Osmorhiza occidentalis
Mrs. R. M. Austin
1879-1
Lassen
Comment
SD232782
Oxytheca dendroidea subsp. dendroidea
Greg R. Ballmer
1993-7-31
Lassen
Sandy flats along Fort Sage Road, NE of Doyle, SE of Honey Lake, ca. 2 - 5 mi. (airline) W of Nevada border.
Comment
UC30052
Oxytheca perfoliata
J. Burtt Davy
Jun 17 1897-Jun 24 1897
Lassen
Amedee Honey Lake Valley
Comment
CHSC63381
Packera cana
Vernon H. Oswald; Beth Corbin, Michael Dolan
1994-6-18
6312
Lassen
Clarks Valley Rd. (Lassen 510) ca. 9 mi E of Madeline.
1859
Comment
JEPS117577
Packera cana
Lowell Ahart, John Dittes
2010-7-31
16990
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
UC1561831
Packera cana
Barbara Ertter with Gary Schoolcraft
1987-6-16
7194
Lassen
Honey Lake Skeedaddle Mountains, Hot Springs Peak (ne side, saddle on e side of peak)
2194
Comment
CHSC96703
Packera pseudaurea var. pseudaurea
Gordon Leppig
1998-7-12
948
Lassen
Modoc National Forest, Blue Lake Ranch. Peatland in large meadow complex.
1970
Comment
CAS-BOT-BC253786
Panicum hillmanii
John Thomas Howell
1973-7-10
49808
Lassen
Doyle
Comment
SEINET229883
Pappostipa speciosa
G. Schoolcraft
1982-6-22
721
Lassen
N end of Fort Sage Mts.
1524
Comment
UC1101564
Paspalum distichum
Malcolm A. Nobs and S. Galen Smith
1949-8-20
1479
Lassen
1 mi n Doyle (banks of Long Creek); Honey Lake Valley, banks of Long Creek
Comment
SEINET10456342
Pectocarya penicillata
David B. Dunn, Jeffrey Huber
1971-6-2
Dunn 17750
Lassen
3 mi. S of Hallelujah Jct, on US Hwy 395, jct of US 395 & CA 70.
Comment
CHSC64871
Pectocarya setosa
Vernon H. Oswald; Lowell Ahart
1995-6-19
6892
Lassen
Modoc Plateau. Between Litchfield and Ravendale on Smoke Creek Ranch Rd., 4.0 mi e of Hwy. 395. On a slope on the n side of the road.
1383
Comment
SBBG68673
Pedicularis attollens
H. and M. Dearing
1938-7-1
2238
Lassen
12 mi W of Susanville
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
JEPS94553
Pedicularis groenlandica
Vernon Oswald and Lowell Ahart
1997-6-24
8652
Lassen
s of Susanville (just s of the small pond on the crest of Diamond Mountain, about midway between Aspen Flat and Red Rock Lookout); crest of Diamond Mountain
2249
Comment
UCD18965
Pedicularis semibarbata
Raymond D. Ratliff
1965-8-4
49
Lassen
Lassen National Forest, Harvey Valley Allotment (HV 19-13).
1767
Comment
UC303057
Pellaea brachyptera
Pearl Safford
Lassen
Susanville [uncertain locality]
Comment
JEPS7229
Penstemon
Jos. Grinnell
1928-6-26
Lassen
Cinder Cone, SE slope
2103
Comment
POM203062
Penstemon deustus subsp. heterander
J. T. Howell
1934-7-9
12523
Lassen
Pine Creek Flat
Comment
RSA715656
Penstemon deustus subsp. heterander
L. Ahart, John Dittes
2005-6-2
11979
Lassen
North side of a poor dirt road, Long Valley, about 4.5 mi. (air) northeast of the intersection of Scott Rd. and Highway 70, 5.7 mi. (air) northwest of Halleluiah Junction.
1411
Comment
POM252931
Penstemon deustus subsp. sudans
A. A. Heller
1938-6-23
15194
Lassen
East of Fredonyer Pass on Hwy 36.
1646
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
CHSC14190
Penstemon gracilentus
M. S. Taylor
1974-7-10
276
Lassen
Abundant 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
CHSC4862
Penstemon gracilentus
R. Carter
1967-7-7
580
Lassen
Collected ca. 20 yds from e shore of small reservoir. Dean's Meadow.
Comment
JEPS11269
Penstemon gracilentus
Jos. Grinnell
1928-6-16
Lassen
Eagle Lake Lassen Peak Region
1584
Comment
SEINET10917288
Penstemon gracilentus
Karen M. Meyer, Andrew Townesmith
2007-7-23
Meyer 157
Lassen
Lassen National Forest. 3.9 miles SW on 32N10 off Hwy. 44. (Turn at rest area).
1900
Comment
UC1137680
Penstemon gracilentus
George A. Fischer, Irwin H. Johnson
1933-7-14
F 254
Lassen
Lassen National Forest
1783
Comment
UC1874751
Penstemon gracilentus
Karl Vincent, Charlotte Labbe
1986-7-19
4382
Lassen
Sierra Nevada, Roop Mtn.; Alng CA A1 at Eagle Lake Summit, ca. 7.6 mi N of jct. CA 36, ca 7 air mi NW of Susanville.
1932
Comment
NY603846
Penstemon humilis var. humilis
N. H. Holmgren
1978-6-11
8927
Lassen
Upper Smoke Creek, southeast side of Observation Peak, 11.3 km (7 miles) northeast of Rye Patch Canyon summit, 21 km (13 miles) airline distance east-southeast of Ravendale.
1700
Comment
POM252804
Penstemon neotericus
A. A. Heller
1938-7-28
15294
Lassen
West of Westwood.
Comment
SEINET5329198
Penstemon neotericus
C. G. Gulling
1905-1
1543
Lassen
Big Meadows
Comment
UC725482
Penstemon neotericus
A. A. Heller
1938-7-28
15294
Lassen
w Westwood; w of Westwood
1524
Comment
CHSC36470
Penstemon roezlii
Jeffrey R. Peek
1982-6-4
31
Lassen
Ca. .5 mi e of Murrers Upper Meadow on road going to meadow.
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
NY650129
Penstemon roezlii
D. D. Keck
1930-7-23
954
Lassen
12 miles west of Susanville
1676.4
Comment
RSA668002
Penstemon roezlii
Karl Vincent
1986-6-14
4321
Lassen
Upper Long Valley, along E side of US 395, ca 5.5 mi N of jct US 70, ca 13.2 rd mi N of Bordertown and Nevada state line.
1463
Comment
UC690374
Penstemon roezlii
David D. Keck and J. Clausen
1935-6-24
3727
Lassen
5 mi s Likely ((Modoc Co.)); s of Likely
1400
Comment
CDA41987
Penstemon roezlii
T. C. Fuller
1963-6-1
10633
Lassen
East side of road to Hall s Flat, 9.4 miles south of Pittville.
0
Comment
CAS-BOT-BC239500
Penstemon rydbergii var. oreocharis
John Thomas Howell
1934-7-7
12460
Lassen
Board Ranger Station
Comment
CAS-BOT-BC239507
Penstemon rydbergii var. oreocharis
John Thomas Howell
1934-7-7
12460
Lassen
Bogard Ranger Station
Comment
CAS-BOT-BC239510
Penstemon rydbergii var. oreocharis
A. A. Heller
1938-6-23
15193
Lassen
About 4 miles east of Westwood
1432
Comment
CHSC30588
Penstemon rydbergii var. oreocharis
Marc Held
1972-6-29
23
Lassen
South end of Dean's Meadow.
Comment
CHSC5915
Penstemon rydbergii var. oreocharis
R. Gein
1946-6-24
Lassen
McCoy Flat, west of Eagle Lake.
1645
Comment
JEPS124372
Penstemon rydbergii var. oreocharis
Lowell Ahart, John Dittes
2015-7-13
20316
Lassen
Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
Comment
RSA59553
Penstemon rydbergii var. oreocharis
E. K. Balls
1950-5-22
14830
Lassen
0.5 mi N of turnoff to Heir, Hwy 395, between Milford and Doyle.
1280
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
UC70352
Penstemon rydbergii var. oreocharis
Milo S. Baker
1890-1
Lassen
Milford
Comment
CHSC5916
Penstemon speciosus
J. B. Kimsey
1946-6-10
Lassen
Eagle Lake.
1554
Comment
HSC63768
Penstemon speciosus
Teresa Prendusi
1980-7-1
Lassen
Champs Flat, 6 mi. W of N tip of Eagle Lake
1768
Comment
JEPS95972
Penstemon speciosus
Vernon H. Oswald and L. Ahart
1999-6-9
9747
Lassen
Northeast of Susanville on County Rd. 216 (to Karlo and Biscar Wildlife Management Area) 5.2 mi west of Hwy. 395, 0.2 mi east of the RR crossing at Karlo: T31N R15E SE1/4 Sect. 7, 4440 ft elevation, sagebrush scrub, white volcanic ash substrate
1353
Comment
NY660809
Penstemon speciosus
N. H. Holmgren
1980-7-5
9518
Lassen
Upper Smoke Creek drainage, 14.8 km (9.2 miles) east of U.S. Highway 395 via Rye Patch Canyon, 19 km (12 miles) airline distance east-southeast of Ravendale.
1680
Comment
NY661010
Penstemon speciosus
L. Constance
1938-6-11
2331
Lassen
3.5 miles north of Secret Valley, Madeline Plains on Susanville-Alturas road
1524.0
Comment
NY661040
Penstemon speciosus
G. W. Gillett
1953-7-1
273
Lassen
Fredonyer Pass, Highway 36. Lassen National Forest.
1752.6
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
UC1520676
Penstemon speciosus
Noel H. Holmgren and Patricia K. Holmgren
1980-7-5
9518
Lassen
19 km (12 mi) airline distance ese Ravendale (14.8 km (9.2 mi) e U.S. Highway 395 via Rye Patch Canyon, Upper Smoke Creek drainage); Upper Smoke Creek drainage
1680
Comment
POM203061
Penstemon speciosus
J. T. Howell
1934-6-10
11905
Lassen
3 miles S of Ravendale.
Comment
RSA38458
Penstemon speciosus
Philip A. Munz
1947-5-19
11877
Lassen
Hwy 395, 3.5 miles S of Ravendale.
1616
Comment
CHSC23482
Penstemon sudans
Wayne O. Baum
1971-7-9
71 -86
Lassen
E slope of Gallatin Peak.
2072
Comment
JEPS94561
Penstemon sudans
Vernon Oswald and Lowell Ahart
1997-6-24
8599
Lassen
on Forest Rd. 29N43 1.2 mi e Gold Run Rd. (29N10) (n side of mt., s of Susanville); Diamond Mtn.
1685
Comment
NY661797
Penstemon sudans
G. W. Gillett
1953-7-13
274
Lassen
Fredonyer Pass, Highway 36. One mile east of pass.
1706.9
Comment
NY661808
Penstemon sudans
D. D. Keck
1935-6-25
3756
Lassen
Susanville; just west of town
Comment
RSA299501
Penstemon sudans
J. T. Howell
1977-6-22
s.n.
Lassen
West of Susanville, near the confluence of Willard Creek and Susan River
1433
Comment
UC1012184
Penstemon sudans
Francis W. Pennell
1940-6-9
25768
Lassen
Route 36 hill w Susanville; hill w of Susanville
1371
Comment
UC1561843
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
1828
Comment
SEINET5323638
Penstemon sudans
G. Schoolcraft
1998-7-8
2752
Lassen
Along Hwy 139 about 3 mi. n. os Susanville.
1402
Comment
OBI82794
Penstemon venustus
Robert L. Johnson, Mikel R. Stevens
2015-7-10
3935
Lassen
E of Freydonyer Pass. 6.2 rd mi west on Hwy 36 after jct with Hwy 44. S side of rd. Ca 11 air mi wsw of Susanville.; 0
1659
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
CHSC7723
Peraphyllum ramosissimum
Beverley J. Wise
1969-5-4
193
Lassen
1.5 mi. west of Shaeffer Mtn lookout access road off Hwy 395 (approx. 1 mi. south of Las Co. 338).
1676
Comment
RSA0092314
Perideridia bolanderi subsp. bolanderi
Jim M. Andre, Tasha La Doux, Senna Andre, Elias Andre
2013-7-12
31422
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
UC1123141
Perideridia bolanderi subsp. bolanderi
A. Simontacchi
1940-6-11
846
Lassen
3.7 mi sse Black Mtn.; Lassen National Forest, Halls Flat Quadrangle
Comment
UC1567445
Perideridia bolanderi subsp. bolanderi
G. Schoolcraft
1989-5-31
1889
Lassen
Skedaddle Ranch Rd. about 6 mi n Wendel Road
1493
Comment
SEINET12120566
Perideridia gairdneri
Unknown
1978-1
3
Lassen
Papoose Creek, SE corner of Eagle L
1585
Comment
CHSC105250
Perideridia kelloggii
Lowell Ahart; John Dittes
2010-7-31
16993
Lassen
On bottom of small wash, about 20 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
CAS-BOT-BC423341
Peritoma platycarpa
H. D. Ripley; R. C. Barneby
1943-6-15
5757
Lassen
Nr. Viewland
1310
Comment
CAS-BOT-BC423343
Peritoma platycarpa
A. A. Heller
1938-6-23
15207
Lassen
On the grade east of Litchfield, on U. S. Highway #395
1371
Comment
SEINET5845147
Peritoma platycarpa
J. A. Young
1982-6-7
s.n.
Lassen
Redlands
1676
Comment
CHSC30561
Persicaria
Sori H. Shad
1970-6-19
8
Lassen
Found on pine creek, 50 yard below california fish and game cambine [sic[.
1524
Comment
CHSC6230
Persicaria amphibia
J. B. Kimsey
1946-6-24
Lassen
Pine Creek, Eagle Lake.
1584
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
RSA75519
Phacelia adenophora
F. W. Peirson
1926-6-24
6851
Lassen
On Madeline Plain.
Comment
UCD120256
Phacelia adenophora
Philip A. Munz
1947-5-19
11881
Lassen
Near road, Madeline.
1676
Comment
CHSC71089
Phacelia bicolor var. bicolor
Vernon H. Oswald; Lowell Ahart
1998-5-22
9132
Lassen
Near the summit of the dirt road in the Fort Sage Mtns. 3.5 mi east of Fort Sage Rd., ca. 6 mi NE of Doyle.
1737
Comment
UC1609410
Phacelia glandulifera
Vernon H. Oswald and Lowell Ahart
1993-6-14
5541
Lassen
Eagle Lake Rd (Lassen A1) at Sandy Beach (w shore of lake, ca 2.0 mi ene of Spaulding Tract Rd (Rd 518, 33N89), n side of rd); Eagle Lake
1566
Comment
UC1523735
Phacelia hastata
Gary Schoolcraft
1981-6-15
462
Lassen
Ash Valley
1584
Comment
UC726924
Phacelia hastata
A. A. Heller
1941-6-24
16192
Lassen
3 mi e Bieber
Comment
SDSU6617
Phacelia hastata
D. F. Howe
1964-7-1
3913
Lassen
4.8 miles from Harvey Creek on ridge road, Modoc National Forest,
2134
Comment
GMDRC6948
Phacelia hastata subsp. hastata
J. M. Andre, T. La Doux, Senna & Elias Andre
2013-7-12
31421
Lassen
along north side of Hwy 44 at south end of Grays Valley, along NF Rd# 33N02, north of Bogard Buttes, about 30 mi. west of Susanville.
1733
Comment
RSA715987
Phacelia heterophylla subsp. virgata
L. Ahart, John Dittes
2005-6-2
11952
Lassen
Along a poor dirt road, about 1/2 mile west of the Anderson Ranch home, Long Valley, about 4.75 miles (air) northwest of the intersection of Scott Road and Highway 70, 6.6 miles (air) northwest of Hallelujah Junction
1513
Comment
CHSC5262
Phacelia humilis
1944-7-9
Lassen
Dow Butte, Eagle Lake.
2042
Comment
JEPS2119
Phacelia humilis
Brown and Wieslander
1922-7-18
63
Lassen
Martin Sprs. Eagle Lake
Comment
UC1259992
Phacelia humilis
Jeffrey Huber
1971-6-2
111
Lassen
on CA Hwy 139 approx. 30 mi n Susanville
1645
Comment
UC133087
Phacelia humilis
T. S. Brandegee
1892-7-3
Lassen
Susanville
Comment
UCD120530
Phacelia humilis var. humilis
Beecher Crampton
1960-6-18
5728
Lassen
N.E. part of county; southern Warner Mtns., vicinity Blue Lake Ranch.
Comment
POM73344
Phacelia humilis var. humilis
Marcus E. Jones
1897-6-28
s.n.
Lassen
Top of Diamond Mt., Susanville, Perkin's Ranch.
2226
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
UC735052
Phacelia inundata
Lincoln Constance
1946-7-3
3097
Lassen
Spauldings Eagle Lake (w edge of lake)
1706
Comment
NY998462
Phacelia linearis
N. H. Holmgren
1980-7-4
9501
Lassen
Observation Peak, south side of mountain, 18 km (11 miles) airline distance east of Ravendale
1890
Comment
UC1609380
Phacelia linearis
Vernon H. Oswald and Lowell Ahart
1993-6-14
5532
Lassen
Eagle Lake Rd (Lassen A1) at Sandy Beach Eagle Lake (w shore of lake, ca 2.0 mi ene of Spaulding Tract Rd (Rd 518, 33N89), upper beach between road and lake)
1566
Comment
UCR80208
Phacelia linearis
J. T. Howell
1934-6-10
11901
Lassen
3 mi. south of Ravendale.
1638
Comment
POM73412
Phacelia linearis
C. C. Bruce
1898-06
2190
Lassen
Madeline Plains.
Comment
RSA149122
Phacelia linearis
I. L. Wiggins, Dorothy Wiggins
1961-6-16
16530
Lassen
0.8 mile west of summit of Big Valley Pass.
Comment
RSA303850
Phacelia linearis
Jim R. Shevock
1972-5-20
1819
Lassen
Highway 395, Honey Lake.
1311
Comment
RSA324239
Phacelia lutea
Arnold Tiehm, Raymond Evans, James Young
1984-6-7
8593
Lassen
Flats n the northwest side of Shaffer Mountain. 7.5 airmiles NNW of Litchfield.
1372
Comment
NY1056437
Phacelia lutea var. glandulifera
A. A. Heller
1938-6-23
15210
Lassen
U.S. Highway #395, about midway between Mapes and Secret Valley
1372
Comment
NY1056439
Phacelia lutea var. glandulifera
W. W. Eggleston
1911-7-7
7166
Lassen
Secret Valley
1330
Comment
UC506976
Phacelia mutabilis
George A. Fischer, Irwin H. Johnson
1933-7-12
F 226
Lassen
Lassen <National> Forest
1722
Comment
UC1084101
Phacelia procera
Rimo Bacigalupi with G. T. Robbins
1955-7-21
5433
Lassen
along upper reaches of creek about 10 mi sw Susanville (along rd. over Diamond Mtn. ridge to Englemine and Indian Valley); Gold Run Creek
1767
Comment
OBI75900
Phacelia racemosa
Anthony Baniaga
2011-8-1
477
Lassen
Lassen Natl Forest. SW Swain Meadow, near marker tree #27. Swain Mtn quad T30N R8E sec 34 NE of NW
1764
Comment
UC24457
Phacelia ramosissima var. eremophila
Milo S. Baker
1894-7-25
Lassen
Eagle Lake
1524
Comment
RSA72886
Phacelia tetramera
Marcus E. Jones
1897-6-19
s.n.
Lassen
Chat.
1616
Comment
JEPS79143
Phacelia thermalis
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
POM73715
Phacelia thermalis
Marcus E. Jones
1897-6-24
s.n.
Lassen
10 to 15 miles west from Amedee.
1220
Comment
SJSU14072
Phacelia thermalis
W. Savage
1964-6-30
338
Lassen
by Hwy 338, 11 mi N of Susanville
Comment
UC1567390
Phacelia thermalis
G. Schoolcraft
1989-5-3
1868
Lassen
s Karlo; North end of Secret Valley
1341
Comment
UC710908
Phacelia thermalis
C. L. Hitchcock
1940-5-26
6641
Lassen
1 mi w Bieber; floodplain of Pitt River
Comment
RSA40730
Phacelia thermalis
C. L. Hitchcock
1940-5-26
6641
Lassen
Overflow of Pitt River, 1 mile W of Bieber
Comment
CAS-BOT-BC265822
Phalaris arundinacea
John Thomas Howell
1974-7-8
50477
Lassen
Susanville, Sierra Nevada
1295
Comment
HSC93434
Phalaris arundinacea
Vernon H. Oswald, L. Ahart
1996-8-1
8108
Lassen
Mtn. Meadows Reservoir SW of Westwood
1540
Comment
CAS-BOT-BC232852
Phlox
David D. Keck; J. Clausen
1935-6-24
3744
Lassen
2 miles S of Ravendale
Comment
CHSC4271
Phlox diffusa
K. R. Stern
1967-6-25
2430
Lassen
On road to Eagle Lake Biological Station, ca. 3 mi. E of Eagle Lake.
1676
Comment
CHSC61165
Phlox diffusa
Vernon H. Oswald; Lowell Ahart
1993-5-12
5372
Lassen
SW side of Hwy. 44, 0.9 mi NW of its intersection with A21 (to Westwood).
1737
Comment
UC1124221
Phlox gracilis
A. Simontacchi
1940-5-10
690
Lassen
7.3 mi w Harvey Mtn. Lookout; Lassen National Forest, Halls Flat Quad.
1752
Comment
UC1124222
Phlox gracilis
K. E. Bradshaw
1939-5-27
230
Lassen
Black Mountain Experimental Forest, Plot 39-1, s end Lassen National Forest, Halls Flat Quad.
1752
Comment
UC1137763
Phlox gracilis
August L. Hormay
1934-5-9
Lassen
Black Mt. Headquarters Lassen National Forest
1706
Comment
RSA647573
Phlox longifolia
Marion P. Harthill
1971-6-21
226
Lassen
Ravendale
Comment
RSA647574
Phlox longifolia
Marion P. Harthill
1971-6-21
227
Lassen
Ravendale
Comment
UC1924596
Phlox speciosa
Debra Valov
2006-5-28
2006006
Lassen
Bieber off County Rd A2 c. 8.7 km east of Hwy 299
1305
Comment
NY963723
Phlox speciosa
LeDoux
1973-5-25
867
Lassen
Collected 3 miles north of Milford, on Highway 395 at Honey Lake campgrounds
Comment
NY963724
Phlox speciosa var. occidentalis
W. W. Eggleston
1911-5-29
6733
Lassen
Vicinity of Doyle Station
1290
Comment
CHSC71130
Phlox stansburyi
Vernon H. Oswald; Lowell Ahart
1998-5-22
9114
Lassen
Road to ORV parking area in Fort Sage Mtns. 0.6 mi east of Fort Sage Rd., ca 5 mi NNE of Doyle.
1402
Comment
UCD55262
Phlox stansburyi
Ellen Dean
2006-5-15
3060
Lassen
East of town of Susanville, along County Road A27 (Center Road). Private land north of California Correctional Facility owned by Virginia Johnston, to be purchased by state for expansion of alfalfa fields.
1249
Comment
UCD118467
Phlox stansburyi
Geo C. Wood
1940-4-18
s.n.
Lassen
Coffin Ranch near Susanville.
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
SEINET11604048
Pinus jeffreyi
D. A. Charlet
2013-2-15
3725
Lassen
At gate to mine in Upper long Valley, west of US highway 395, Fairly large stand
1430
Comment
SEINET11610645
Pinus lambertiana
David Charlet
1996-7-8
2291
Lassen
Diamond Mts; Sierra Nevada Janesville Grade, Great Basin drainage (Honey Lake)
1859
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
JEPS28716
Plagiobothrys cognatus
George W. Gillett
1957-7-29
954
Lassen
Snag Lake Lassen Volcanic National Park (shoreline near e inlet)
1850
Comment
SJSU8053
Plagiobothrys cognatus
R. L. Fisher
1958-6-16
Lassen
6 mi S of Madeline
Comment
UCD120786
Plagiobothrys cognatus
B. L. Kay
1961-6-28
s.n.
Lassen
6 miles northwest of Madeline.
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
JEPS114769
Plagiobothrys cusickii
Lowell Ahart, John Dittes
2008-6-20
14914
Lassen
In vernal pools, about 100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber
1263
Comment
JEPS124383
Plagiobothrys cusickii
Lowell Ahart, John Dittes
2015-7-13
20305
Lassen
Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
Comment
RSA0105587
Plagiobothrys cusickii
Lowell Ahart, John Dittes
2013-7-22
18870
Lassen
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
CAS-BOT-BC224974
Plagiobothrys hispidulus
John Thomas Howell; Gordon H. True
1973-8-1
50212
Lassen
Headwaters of Baxter Creek, E slope of Diamond Range S of Susanville
2164
Comment
CHSC29970
Plagiobothrys hispidulus
R. A. Schlising
1979-6-7
3452
Lassen
S end of Eagle Lake, at Papoose Creek and Meadow in Lassen National Forest. In streambed.
1584
Comment
UC1137695
Plagiobothrys hispidulus
L. R. Short and Wm. Gansberg
1936-6-8
S- 389
Lassen
Lassen National Forest
1743
Comment
CAS-BOT-BC224976
Plagiobothrys hispidulus
Clarence R. Quick
1962-6-17
62 27 C
Lassen
Swains Hole, S of Blacks Mountains Experimental Station
1615
Comment
SD149177
Plagiobothrys hispidus
John Thomas Howell, Gordon H. True
1973-8-1
50212
Lassen
Headwaters of Baxter Creek, east slope of Diamond Range, south of Susanville.
2160
Comment
UC1561381
Plagiobothrys hispidus
Barbara Ertter with Gary Schoolcraft
1987-6-16
7190
Lassen
on s side Hot Springs VABM (on ne side of Honey Lake); Skeedaddle Mountains, Honey Lake
2286
Comment
JEPS107963
Plagiobothrys kingii var. harknessii
Lowell Ahart, John Dittes
2005-6-1
11891
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
HSC31353
Plagiobothrys mollis
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19273
Lassen
Harvey Valley near Cone Springs
Comment
UC1533150
Plagiobothrys mollis
G. Schoolcraft
1986-7-28
1665
Lassen
w Ash Valley (along edge of Moll Reservoir); edge Moll Reservoir
1606
Comment
RSA0105581
Plagiobothrys mollis var. mollis
Lowell Ahart, John Dittes
2013-7-23
18898
Lassen
About 50 yards west of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
RSA39738
Plagiobothrys scouleri var. hispidulus
P. A. Munz
1947-5-20
11891
Lassen
Milford.
1265
Comment
SEINET10972885
Plagiobothrys scouleri var. hispidulus
Katherine L. Morris
1973-5-25
Morris 248
Lassen
27.7 mi NW of the junction of Hwy 36 & 44 on Hwy 44, at Robber's Spring, in an open meadow on one side of the hwy with yellow pine, white fir and open on the other side.
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
UC101433
Plagiobothrys tenellus
Marcus E. Jones, A. M.
1897-6-18
7141
Lassen
Chat
1524
Comment
CHSC30564
Platanthera leucostachys
Sori H. Shad
1970-6-19
21
Lassen
Above and east of Galatin Beach.
1524
Comment
POM260454
Plectritis congesta subsp. brachystemon
C. Leo Hitchcock
1940-5-26
6604
Lassen
Lava beds ca 12 miles north of Fall River Mills (Shasta Co.) on Fall River.
1372
Comment
CHSC107326
Plectritis macrocera
Lowell Ahart; John Dittes
2011-6-20
17494
Lassen
Meadow, about 30 yards east of the stream, about 80 yards north of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin.
1520
Comment
CHSC112449
Plectritis macrocera
Lowell Ahart; John Dittes, Todd Sloat
2013-6-8
18747
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
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
JEPS114707
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
RSA337278
Plectritis macrocera
Noel Holmgren, Patricia K. Holmgren
1980-7-3
9488
Lassen
Rye Patch Canyon Road, 3.4 km (2.1 mi) east of US Hwy 395, 14.5 km (9 mi) airline distance southeast of Ravendale.
1700
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
CHSC110312
Pleiacanthus spinosus
L. P. Janeway; B. Castro
2012-7-1
10922
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
JEPS36547
Pleiacanthus spinosus
W. L. Jepson
1918-8-2
7790
Lassen
Long Valley
1371
Comment
UC1562342
Pleiacanthus spinosus
Vernon Oswald and Lowell Ahart
1990-7-25
4395
Lassen
2.2 mi w Highway 395 (intersection of Hwy 70 and Scott Rd)
1463
Comment
RSA273386
Poa
J. P. Smith, J. O. Sawyer
1971-5-22
4655
Lassen
4 miles west of Susanville on State Route 44.
Comment Read comments May 9 2012
UCD92181
Poa
J. B. Davy
17-24 Jun 1897
3319
Lassen
Honey Lake Valley. Byer's Ranch.
Comment
UCD92183
Poa
George A. Fischer; Irwin H. Johnson
1933-7-14
F 245
Lassen
Patterson Flat - Lassen Nat'l Forest.
1737
Comment
CHSC36503
Poa bulbosa
Theresa Costa
1982-6-2
22
Lassen
Ca. 3.5 mi e jct Hwy I39 and Ravendale Rd, ca 5 yd n Ravendale Rd. Creekside.
Comment
UCD90919
Poa cusickii
Leo Whitney
1935-6-10
3219
Lassen
Camp 10, Fruit Grower's Supply Company, Lassen National Forest.
Comment
UC1024837
Poa cusickii subsp. cusickii
Leo Whitney
1935-6-10
3219
Lassen
Camp 10 Fruit Grower's Supply Company
Comment
HSC95195
Poa leptocoma subsp. leptocoma
Gordon Leppig, J. Cromwell
1997-7-27
629
Lassen
Modoc National Forest, Blue Lake Ranch.
1970
Comment
CHSC61599
Poa pratensis
Arthur C. Barrett
1915-6-3
18
Lassen
Plumas National Forest. Laufman Ranger Station. Meadow.
1463
Comment
SEINET190961
Poa pratensis
A. A. Beetle
2797
Lassen
10 miles west of Chester Mountain meadow.
1524
Comment
UC60738
Poa pratensis subsp. pratensis
M. S. Baker and Frank Nutting
1894-7-9
Lassen
Pine Creek
Comment
POM203054
Poa secunda
J. T. Howell
1934-7-6
12459
Lassen
Harvey Valley
Comment
POM267993
Poa secunda
D. D. Keck
1944-7-8
5456
Lassen
5 miles east of Westwood, on road to Fredonyer Pass.
1585
Comment
UCD90322
Poa secunda
A. A. Beetle; G. L. Stebbins Jr.
1942-5-30
3365
Lassen
Nubieber.
Comment
CHSC33318
Poa secunda subsp. juncifolia
P. Reynolds
1979-7-4
18
Lassen
3 mi. NE of Wendel, Wendel Canyon in the Skedaddle Mtn. Range.
1371
Comment
SJSU15450
Poa secunda subsp. juncifolia
John Rawlings, Sara Timby
2014-6-15
1265
Lassen
In and around BLM campground at north end of Eagle Lake.
1580
Comment Read comments Feb 18 2015
UC1037128
Poa secunda subsp. juncifolia
Leo Whitney
1935-6-19
3259
Lassen
Camp 10 Fruit Grower's Supply Company; Lassen Nat'l Forest
Comment
UC718011
Poa secunda subsp. juncifolia
David D. Keck
1944-7-8
5447
Lassen
2 mi w Westwood (meadow leading to Mountain Meadows Reservoir); Sierra Nevada
1524
Comment
UCD92377
Poa secunda subsp. juncifolia
B. L. Kay
1961-6-28
s.n.
Lassen
6 miles NW of Madeline.
Comment
UCD92396
Poa secunda subsp. juncifolia
A. H. Shunk
1923-7-28
s.n.
Lassen
Madeline.
Comment
UCD92429
Poa secunda subsp. juncifolia
L. D. Whitney
1935-6-28
s.n.
Lassen
Bieber.
Comment
SEINET7854865
Poa secunda subsp. juncifolia
G. Schoolcraft
1995-5-22
2489
Lassen
East of Skedaddle Ranch.
1554
Comment
CAS-BOT-BC236179
Poa secunda subsp. secunda
Louella Bass
1973-5-25
EU 44
Lassen
Elysian Valley
1325
Comment
UC1024839
Poa secunda subsp. secunda
Leo Whitney
1935-6-10
3217
Lassen
Camp 10 Fruit Grower's Supply Company; Lassen Nat'l Forest
Comment
UC1567404
Poa secunda subsp. secunda
G. Schoolcraft
1989-7-18
1975
Lassen
near Buck's Spring (s of Clark's Valley Rd)
1874
Comment
UC70959
Poa secunda subsp. secunda
J. Burtt Davy
Jun 17 1897-Jun 24 1897
Lassen
Long Valley
Comment
UCD91755
Poa wheeleri
Leo Whitney
1935-6-13
3240
Lassen
Camp 10, Fruit Grower's Supply Company, Lassen National Forest.
Comment
UCD91756
Poa wheeleri
L. Whitney
1935-6-23
s.n.
Lassen
Fruit Grower's Supply Co., Camp 10.
Comment
CHSC67263
Polemonium micranthum
James D. Jokerst
1991-5-29
3312
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 drainage.
1584
Comment
CDA40272
Polemonium micranthum
Lee Wheeler
1960-4-13
3941
Lassen
At the fairgrounds, Susanville.
0
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
SD61072
Polemonium occidentale
Darley F. Howe
1964-8-2
3918
Lassen
East Creek, Warner Mountains, Modoc Natl. Forest
2012
Comment
SDSU3228
Polemonium occidentale
D. F. Howe
1964-8-2
3918
Lassen
East Creek, Warner Mtns., Modoc National Forest
2012
Comment
UC73604
Polemonium occidentale
Milo S. Baker
1894-1
Lassen
Bridge Creek
Comment
CAS-BOT-BC74170
Polyctenium fremontii
Arnold Tiehm; Margaret Williams; Jan Nachlinger
1988-6-2
11703
Lassen
6.6 road miles north of the Wendel Road on highway 395 from Susanville to Alturas, along the highway.
1347
Comment
SEINET258241
Polyctenium fremontii var. confertum
Arnold Tiehm, Jan Nachlinger, Margaret Williams
1988-6-2
11703
Lassen
6.6 road miles north of the Wendel Road on Hwy. 295 from Susanville to Alturas. T30N R15E Sec 15
1350
Comment
RSA0004885
Polygala lasseniana
A. A. Heller
1938-6-23
15213
Lassen
South of Secret Valley.
Comment
CAS-BOT-BC167848
Polygala subspinosa
H. D. Ripley; R. C. Barneby
1943-6-15
5760
Lassen
E. of Viewland
1310
Comment
CHSC4777
Polygonum
R. Carter
1967-6-27
556
Lassen
Ca. 100 yds. off n side of rd., 1.75 mi w of Eagle Lake Biology Station.
1584
Comment
NY404581
Polygonum amphibium var. emersum
G. H. True Jr.
1939-7-6
1038
Lassen
George Bailey Ranch, Honey Lake Valley
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
UCD33604
Polygonum californicum
Beecher Crampton
1970-6-26
8637 b
Lassen
Lassen County, ca. 5 miles west of Susanville.
1524
Comment
UC1562677
Polygonum davisiae
Barbara Ertter
1988-7-25
7863
Lassen
ridge ca 1.5 mi e Diamond Peak (ca 10 air mi due s of Susanville); Diamond Mts.
2286
Comment
CAS-BOT-BC414489
Polygonum douglasii
Clare B. Hardham
1969-8-28
17432 A
Lassen
West of Janesville
Comment
JEPS117591
Polygonum douglasii subsp. douglasii
Lowell Ahart, John Dittes
2010-7-31
16978
Lassen
About 100 yards northeast of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin
1520
Comment
CHSC25902
Polygonum douglasii subsp. spergulariiforme
K. R. Stern
1967-7-1
2467
Lassen
Murrer Ranch, ca. 17 mi. NE of Susanville.
Comment
UC1178952
Polygonum douglasii subsp. spergulariiforme
Herbert L. Mason
Jul 29 1955-Jul 31 1955
14645
Lassen
near Westwood Junction ((railroad station 15 mi w of Susanville), s Lassen Co.)
Comment
HSC31370
Polygonum minimum
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19243
Lassen
About 3 mi. N of Westwood
Comment
SD7880
Polygonum minimum
Mrs. R. M. Austin
none given
Lassen
Lassen Co.
Comment
UC1603211
Polygonum polygaloides
J. Guardino
1993-6-8
261
Lassen
near Wayman Barn (at the w end of Hunt Road, Ash Creek Wildlife Area); Ash Creek Wildlife Area, Hunt Road
1264
Comment
UC1603212
Polygonum polygaloides
J. Guardino
1993-5-22
171
Lassen
near Wayman Barn (at the w end of Hunt Road, Ash Creek Wildlife Area); Ash Creek Wildlife Area, Hunt Road
1264
Comment
UC1603213
Polygonum polygaloides
J. Guardino
1993-5-22
167
Lassen
near Wayman Barn (at the w end of Hunt Road, Ash Creek Wildlife Area); Ash Creek Wildlife Area, Hunt Road
1264
Comment
UC1603214
Polygonum polygaloides
J. Guardino
1993-6-9
281 A
Lassen
near Wayman Barn (at the w end of Hunt Road, Ash Creek Wildlife Area); Ash Creek Wildlife Area, Hunt Road
1264
Comment
CHSC112396
Polygonum polygaloides subsp. confertiflorum
Lowell Ahart; John Dittes, Todd Sloat
2013-6-8
18732
Lassen
Drainage filled with dirt form 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
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
HSC69611
Polygonum polygaloides subsp. confertiflorum
Teresa Prendusi
1980-7-1
Lassen
Champs Flat, 8 mi. W of N Eagle Lake.
1677
Comment
UC1191311
Polygonum polygaloides subsp. confertiflorum
Herbert L. Mason
Jul 29 1955-Jul 31 1955
14639
Lassen
Pine Creek Flat
Comment
CHSC58507
Polygonum polygaloides subsp. kelloggii
Vernon H. Oswald
1992-7-3
5047
Lassen
Lassen Volcanic National Park. Trail from Juniper L. to Cameron Meadow, between the trail to Jakey L. and the trail to Horseshoe L.
1981
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
JEPS97417
Polygonum ramosissimum
Vernon H. Oswald and L. Ahart
1995-6-19
6880
Lassen
T30N R15E center Sect. 22, 4540 ft, Modoc Plateau, Sagebrush Scrub. Between Litchfield and Ravendale on Smoke Creek Ranch Rd., 0.3 mi e of Hwy. 395
1383
Comment
RSA122836
Polygonum sawatchense
L. R. Short, J. Warren
1936-06
s 420
Lassen
Burgess Spring, Exp Range.
1857
Comment
UC1136188
Polygonum sawatchense subsp. sawatchense
A. Simontacchi
1940-5-28
780
Lassen
3.2 mi wsw Patterson Mt.; Lassen National Forest, Halls Flat Quadrangle
Comment
RSA122848
Polygonum spergulariiforme
L. R. Short
1936-9-30
s 501
Lassen
Burgess Spring, Exp Range.
1768
Comment
JEPS107817
Polypogon monspeliensis
Lowell Ahart, John Dittes
2005-6-2
11967
Lassen
Stream edge, Long Valley, about 4 1/2 miles (air) northeast of the intersection of Scott Road and Highway 70, 5.7 miles (air) northwest of Hallelujah Junction
1408
Comment
RSA715989
Polypogon monspeliensis
L. Ahart, John Dittes
2005-6-2
11967
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
SEINET10661618
Polypogon monspeliensis
Lowell Ahart, John Dittes
2005-6-2
Ahart 11967
Lassen
T23N, R17E, southwest 1/4 Section 10. 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
CHSC12480
Populus tremuloides
Carol Weld
1969-6-25
21
Lassen
Murrer's Meadow.
1524
Comment
UC526144
Porterella carnosula
John Thomas Howell
1934-7-7
12466
Lassen
near Feather Lake; near Feather Lake
Comment
SEINET10460819
Porterella carnosula
G. Ledyard Stebbins
1949-8-6
Stebbins 4002
Lassen
Edge of Feather Lake, between Susanville and McArthur. Mud flats
1676
Comment
SEINET10460828
Porterella carnosula
Noel H. Holmgren, Patricia K. Holmgren
1980-7-3
Holmgren 9463
Lassen
Madeline Plains, along U.S. Highway 395, 5.6 km (3.5 mi.) south of Madeline. T36N R13ES9
1620
Comment
SEINET10460830
Porterella carnosula
Noel H. Holmgren, Patricia K. Holmgren
1978-6-10
Holmgren 8901
Lassen
Madeline Plains, Coyote Flat, 14.5 km (9 mi) east-northeast of Termo and 13 km (8 mi) airline distance. T35N R15ES7
1630
Comment
SEINET5334401
Portulaca oleracea
Unknown
1942-8-31
s.n.
Lassen
Honey Lake Valley.
1067
Comment
JEPS103225
Potamogeton alpinus subsp. tenuifolius
G. Schoolcraft
1996-9-11
2564
Lassen
Willow Creek below petroglyphs and above dam
1432
Comment
UCD138219
Potamogeton amplifolius
Gordon Leppig
1998-8-18
1064
Lassen
Modoc National Forest; Blue Lake. Lake shore south of camp ground.
1859
Comment
SEINET9362199
Potamogeton diversifolius
Robert Thorne, DeBuhr, Larry
1975-8-22
47201
Lassen
Lassen county
Comment
CAS-BOT-BC267150
Potamogeton foliosus
W. I. Follett; Seth Bertram Benson
1957-11-2
s.n.
Lassen
Tributary of Secret Creek, 1.1 miles N of Karlo
Comment
CHSC65369
Potamogeton foliosus var. foliosus
Vernon H. Oswald; Beth Corbin, Mike Dolan
1995-8-26
7219
Lassen
Warner Mtns. Blue Lake located ca. 13 mi SE of Likely. Along the W shore of the lake.
1859
Comment
CHSC66284
Potamogeton gramineus
Vernon H. Oswald; Lowell Ahart
1996-6-24
7876
Lassen
Modoc Plateau. Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake. In Papoose Creek where it leaves the N end of the meadow.
1633
Comment
UC2046022
Potamogeton natans
Barbara L. Wilson with Richard Brainerd, Danna Lytjen, Bruce Newhouse and Nick Otting
2004-8-24
11167
Lassen
Snowstorm Creek, at a spring; upstream of Biscar Reservoir, west of an old railroad right of way.
Comment
UC1100075
Potamogeton pectinatus
Verne Grant, Irving Schneider
1947-8-1
8243
Lassen
e end of Tule Lake
Comment
CAS-BOT-BC453914
Potamogeton pectinatus
Verne Grant; Irving Schneider
1947-9-6
8380
Lassen
North arm of Eagle Lake
Comment
UC1099900
Potamogeton pusillus var. pusillus
Verne Grant, Irving Schneider
1947-7-31
8212
Lassen
Madeline Plain, ne quarter of George Williams section 19 Madeline Plain
Comment
RSA233761
Potamogeton richardsonii
Robert F. Thorne, C. W. Tilforth
1969-9-5
39140
Lassen
Said Valley Reservoir.
Comment
JEPS97316
Potamogeton zosteriformis
Vernon H. Oswald
1995-8-26
7220
Lassen
T38N R15E Sec. 20, 6100 ft, Warner Mtns., Fresh-water Lake in Yellow Pine Forest. Blue Lake located ca. 13 mi SE of Likely
1859
Comment
JEPS100240
Potentilla basaltica
Dean Wm. Taylor with Glenn Clifton
1990-6-12
10882
Lassen
Ash Valley, along Ash Creek, at the crossing of Road 527 (Forest Road 39N08)
1554
Comment
UCD113701
Potentilla biennis
Verne Grant; Irving Schneider
1947-7-30
8189
Lassen
South point of west embayment, Tule Lake.
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
JEPS107940
Potentilla gracilis var. elmeri
Lowell Ahart, John Dittes
2005-6-1
11854
Lassen
Long Valley, on the west side of the poor dirt road, about 1/2 mile west of Scott Road, about 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.9 miles (air) northwest of Hallelujah Junction
1448
Comment
POM34036
Potentilla gracilis var. elmeri
Marcus E. Jones
1897-6-19
s.n.
Lassen
Chat.
1616
Comment
CHSC4985
Potentilla gracilis var. fastigiata
R. Clicquennoi
1967-6-24
12
Lassen
NW corner of Eagle Lake on highway 139.
1524
Comment
CHSC6256
Potentilla gracilis var. fastigiata
V. Holt
1946-6-30
Lassen
Eagle Lake. Grasshopper Valley.
1624
Comment
JEPS114356
Potentilla gracilis var. fastigiata
Lowell Ahart, John Dittes
2008-6-20
14954
Lassen
In meadow, about 200 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber
1263
Comment
CAS-BOT-BC540361
Potentilla gracilis var. fastigiata
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49453
Lassen
Elysian Valley, west of Janesville
1325
Comment
CAS-BOT-BC540363
Potentilla gracilis var. fastigiata
John Thomas Howell
1934-7-7
12461
Lassen
Bogard Ranger Station
Comment
CAS-BOT-BC158477
Potentilla gracilis var. gracilis
Alice Eastwood; John Thomas Howell
1940-6-11
7997
Lassen
Bieber
Comment
CHSC4758
Potentilla millefolia
R. Carter
1967-7-14
614
Lassen
Hog Flat Reservoir, between highway 92 and shore of reservoir.
Comment
CHSC4889
Potentilla millefolia
L. G. Bennett
1967-7-17
166
Lassen
0.3 mi n of junction of Silver Lake Road and Hwy 44, on Hwy 44.
1975
Comment
CAS-BOT-BC144841
Potentilla rivalis
Verne Grant; Irving Schneider
1947-8-1
8236
Lassen
East end of Tule Lake
Comment
CHSC5273
Prunella vulgaris var. lanceolata
M. West
1946-7-7
Lassen
Eagle Lake. Butte Creek.
Comment
CAS-BOT-BC159776
Prunus andersonii
Ella Dales Cantelow
1938-10-23
2192
Lassen
N. of Doyle, Honey Lake in view
Comment
CAS-BOT-BC159781
Prunus andersonii
Margaret Williams
1974-8-4
74 -L-75
Lassen
Near Hallelujah Junction, west of Hwy 395 and south of Hwy 70
1493
Comment
CHSC114712
Prunus andersonii
B Villegas
2011-3-26
Lassen
Hellelujah Junction. NE corner of HWY 395 and HWY 70 intersection.
Comment
CHSC118852
Prunus andersonii
L. P. Janeway; B. Castro
2015-6-5
11767
Lassen
Great Basin, Modoc Plateau. Along the road from the south endof Surprise Valley to Tuledad Canyon, 12.1 road-km south of Surprise Valley Road; 1.8 air-km east of Newland Reservoir/Bare Creek.
1959
Comment
CAS-BOT-BC154773
Prunus virginiana var. demissa
John Thomas Howell
1974-7-8
50494
Lassen
Susanville
1295
Comment
CHSC66398
Prunus virginiana var. demissa
Vernon H. Oswald; Lowell Ahart
1996-6-17
7767
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 ca. 0.2 mi E of the 7 mile post.
1432
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
JEPS107870
Prunus virginiana var. demissa
Lowell Ahart, John Dittes
2005-6-2
11931
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
UCD113534
Prunus virginiana var. demissa
W. Robert Powell
1985-7-30
3080 c
Lassen
about 3 miles WNW of Susanville on narrow flood plane of Piute Creek.
1402
Comment
CAS-BOT-BC239802
Pseudoroegneria spicata
John Thomas Howell
1976-7-20
52002
Lassen
About 5 miles west of Fredonyer Pass near confluence of Susan River and Willard Creek
1432
Comment
POM267992
Pseudoroegneria spicata subsp. spicata
D. D. Keck
1944-7-9
5450
Lassen
1.5 miles W. of Susanville on rim of plateu overlooking Susan River Canyon
1341
Comment
CAS-BOT-BC80093
Pseudotsuga menziesii
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49409
Lassen
Elysian Valley, west of Janesville
1325
Comment
CHSC112453
Psilocarphus brevissimus var. brevissimus
Lowell Ahart; John Dittes, Todd Sloat
2013-6-8
18756
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
CHSC60879
Psilocarphus oregonus
Vernon H. Oswald; Lowell Ahart
1993-7-8
5672
Lassen
Halls Flat Rd. (33N18), 1.4 mi SSW of Pittville Rd. (Lassen 111, 36N01), ca. 5.4 mi (air) NW of Poison Lake. On the W side of the road.
1694
Comment
JEPS102794
Psoralidium lanceolatum
Vernon H. Oswald
2001-6-2
10040
Lassen
North-northeast of Doyle on a dirt road bordering the east side of Turtle Mountain.
1828
Comment
CAS-BOT-BC453500
Pterospora andromedea
John Thomas Howell; Gordon H. True
1973-7-31
50024
Lassen
Sierra Nevada, on road from Janesville to Thompso Peak, Diamond Range
1737
Comment
CDA38860
Pterospora andromedea
H. Wilkerson & W. F. Cruickshank
Sep 1964
s.n.
Lassen
Hayden Hill.
0
Comment
HSC22982
Pterospora andromedea
John Pratt
1970-7-10
70
Lassen
1524
Comment
CHSC115612
Puccinellia distans
Lowell Ahart; John Dittes
2015-7-14
20330
Lassen
West side of the road, about 100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
1267
Comment
UCD91890
Puccinellia lemmonii
Freed W. Hoffman
1946-5-28
1820
Lassen
Beiber.
Comment
CAS-BOT-BC147822
Purshia tridentata var. tridentata
Margaret Williams; Steven Williams
1974-7-26
74 -L-19
Lassen
Near Hallelujah Junction, west of Hwy 395 and south of Hwy 70
1493
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
JEPS88575
Purshia tridentata var. tridentata
Vernon H. Oswald and Lowell Ahart
1996-6-17
7769
Lassen
7 mi w of Susanville (Bizz Johnson Trail accessed at Devils Corral Trailhead located off Highway 36, along the trail on n side of Highway 36 0.2 mi e of 7 Mile Post); Modoc Plateau, Bizz Johnson Trail
1432
Comment
RSA60361
Purshia tridentata var. tridentata
E. K. Balls
1950-5-9
15946
Lassen
6 miles S of Doyle, Hwy 395
1372
Comment
UC1167550
Purshia tridentata var. tridentata
E. C. Nord
1958-7-12
108
Lassen
near Janesville (near Plumas National Forest)
1371
Comment
UC12421
Purshia tridentata var. tridentata
M. S. Baker and Frank Nutting
1894-7-9
Lassen
Pine Creek
Comment
CAS-BOT-BC462757
Pyrola dentata
John Thomas Howell; Gordon H. True
1973-7-31
50023
Lassen
Sierra Nevada: on road from Janesville to Thompson Peak, Diamond Range
1737
Comment
UC412673
Pyrola picta
Franklin P. Nutting
Jul 1928
Lassen
Mts. S of Eagle Lake
Comment
CHSC60880
Pyrrocoma carthamoides var. cusickii
Vernon H. Oswald; Lowell Ahart
1993-7-8
5667
Lassen
Pittville Rd. (Lassen 111, 36N01) 3.0 mi N of Hwy. 44, NE of Poison Lake.
1709
Comment
UC1136851
Pyrrocoma hirta var. lanulosa
L. R. Short and J. Warren
1936-8-17
S- 496
Lassen
Burgess Spr. Exp. Range
1783
Comment
UC35843
Pyrrocoma hirta var. lanulosa
M. S. Baker and F. Nutting
1894-7-21
Lassen
Eagle Lake
Comment
CAS-BOT-BC362273
Pyrrocoma lanceolata var. lanceolata
James Jokerst
1983-7-24
1881
Lassen
Near Madeline Plains
1614
Comment
CHSC115718
Pyrrocoma lucida
Kirsten Bovee
2012-8-12
Lassen
Along Road 28N38 east of south end of Mountain Meadows Reservoir, straddling boundary with private land. Some seven air miles southeast of Westwood, CA.
1554
Comment
UC1192231
Pyrrocoma racemosa var. paniculata
Verne Grant and Irving Schneider
1947-9-6
8392
Lassen
near Wendel (w of Fleming Rach Headquarters)
Comment
UC21043
Pyrrocoma racemosa var. paniculata
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3380
Lassen
Honey Lake Valley
Comment
CHSC5250
Quercus kelloggii
P. Balch
1955-7-25
Lassen
Eagle Lake. Roop Mt. Rd., 5 mi from Susanville.
1828
Comment
CAS-BOT-BC104478
Quercus vacciniifolia
Brighton C. Cain
1925-8-24
95
Lassen
Mt Lassen Volcanic National Park 1 mi below Drakesbad
1645
Comment
CHSC41844
Ranunculus aquatilis var. capillaceus
P. V. Caldwell
1972-7-12
284
Lassen
Floating on pools and on banks of Papoose Creek.
Comment
CHSC66258
Ranunculus aquatilis var. diffusus
Vernon H. Oswald; Lowell Ahart
1996-6-24
7877
Lassen
Modoc Plateau. Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake. In Papoose Creek where it leaves the N end of the meadow.
1633
Comment
JEPS121299
Ranunculus aquatilis var. diffusus
Lowell Ahart, John Dittes
2013-7-23
18891
Lassen
Margins of a man-made pond, about 150 yards N of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley.
Comment
NY494380
Ranunculus cymbalaria
M. A. Nobs
1949-8-20
1484
Lassen
Marshy banks of Long Creek, 1 mile north of Doyle, Honey Lake Valley
Comment
SEINET10536136
Ranunculus cymbalaria
Mary Susan Taylor
1974-1
Taylor 268
Lassen
Vicinity of Eagle Lake, ca. 13 mi NW of Susanville.
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
JEPS97783
Ranunculus cymbalaria var. saximontanus
Annetta M. Carter
1945-9-30
1723
Lassen
Sam Webb place near end of Eagle Lake.
1554
Comment
HSC23500
Ranunculus cymbalaria var. saximontanus
Bill Wilson
1967-6-30
59
Lassen
Slough Point, 2 mi. W across lake from Eagle Lake Biological Station, 10 mi. N of Susanville
1585
Comment
UC773872
Ranunculus glaberrimus
L. R. Short
1936-4-28
S- 338
Lassen
Burgess Spring Experiment Range Lassen National Forest
1737
Comment
UC1608992
Ranunculus glaberrimus var. ellipticus
Vernon H. Oswald and Lowell Ahart
1993-5-12
5383
Lassen
Forest Rd 32N08 (to Crater Lake) 0.5 mi ne Hwy 44 (between A21 (to Westwood) and Poison Lake, along creek); Pine Creek
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
SEINET10535979
Ranunculus occidentalis
Mary Merello
1993-6-28
Merello 749
Lassen
Lassen National Forest, Poison Lake. Along Hwy. 44 just south of the Hwy. 89, Hwy. 44 intersection. Open pine-scrub and wetlands around lake. Volcanic soils.
1700
Comment
UC506988
Ranunculus occidentalis
George A. Fischer and Irwin H. Johnson
1933-7-12
213
Lassen
Lassen National Forest
1722
Comment
UCD96933
Ranunculus occidentalis
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
SBBG28521
Ranunculus occidentalis var. ultramontanus
M. S. Baker
1952-5-23
Lassen
Hwy 36, between Chester and Fredonyer Pass
Comment
CHSC101037
Ranunculus populago
John Dittes
2008-5-22
1526
Lassen
Modoc Plateau; ca. 15.3 air miles southeast of Adin, ca. 3.4 air miles east of Hayden Hill, ca 480 feet southeast of intersection of Hwy 139 and FS Road 36N02; channel of Willow Creek.
482
Comment
CHSC44887
Ratibida columnifera
Lowell Ahart; John Thomas Howell
1974-7-9
513
Lassen
Near the south-west side of Eagle Lake.
1584
Comment
CAS-BOT-BC58196
Rhododendron columbianum
Brighton C. Cain
1925-8-24
101
Lassen
Mt. Lassen Vilcanic National Park, 1 mi. below Drakesbad.
1645
Comment
CHSC13607
Ribes
Lynn R Thomas
1969-4-17
93
Lassen
100 yds up slope w of back of Lassen Memorial Hospital, Susanville. Boundary between T29N and T30N.
1310
Comment
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
UC1127635
Ribes cereum
A. Simontacchi
1940-6-15
882
Lassen
0.4 mi nw Blacks Mtn.; Lassen National Forest, Halls Flat Quadrangle
Comment
RSA0037147
Ribes cereum
J. R. Keck Jr.
1977-7-13
s.n.
Lassen
Near Puls Camp east of Blacks Mountain, Lassen National Forest.
1830
Comment
CHSC84861
Ribes cereum var. cereum
L. P. Janeway; B. Castro
2003-10-5
8003
Lassen
High Cascade Range. 3.6 km (air) southwest of Bogard Buttes; along Lassen National Forest road 32N09C 0.5 km north of road 32N09.
2020
Comment
HSC95270
Ribes inerme var. inerme
Gordon Leppig
1998-7-12
947
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
UC726449
Ribes nevadense
A. A. Heller
1938-6-4
15145
Lassen
1 mi e Fredonyer Pass
1706
Comment
SEINET12216573
Ribes roezlii
Unknown
1972-1
286
Lassen
1 mi S of Five Points on Dean's Ridge Rd going to Dean's Meadow
Comment
CAS-BOT-BC186151
Ribes roezlii var. roezlii
Brighton C. Cain
1925-8-24
96
Lassen
Mt. Lassen Volcanic National Park 1 mi. below Drakesbad
1645
Comment
CAS-BOT-BC186149
Ribes roezlii var. roezlii
George W. Gillett
1957-7-26
917
Lassen
Butte Lake
1844
Comment
OBI75884
Ribes velutinum
Anthony Baniaga
2011-7-1
414
Lassen
BLM. Fort Sage MTs OHV area, E of Doyle. Quad
1638
Comment
UC1924208
Ribes velutinum
Debra Valov
2004-6-8
2004277
Lassen
Bieber; off County A2 c. 8 km east of Hwy 299
1274
Comment
UC1924227
Rorippa curvipes
Debra Valov
2004-6-8
2004247
Lassen
Bieber; off County A2 c. 8 km east of Hwy 299
1271
Comment
UC10716
Rorippa curvisiliqua
M. S. Baker and F. Nutting
1894-6-1
Lassen
Dixey Mts.
Comment
UC1126739
Rorippa curvisiliqua
A. Simontacchi
1940-6-4
806
Lassen
14.8 mi w Harvey Mountain Lookout; Halls Flat Quad., Lassen National Forest
Comment
RSA0065538
Rorippa curvisiliqua
Marion P. Harthill
1971-6-20
216
Lassen
Susanville.
Comment
CHSC75481
Rorippa sinuata
Vernon H. Oswald; Lowell Ahart
1999-6-9
9735
Lassen
Hwy. 395 northeast of Susanville and north of Smoke Creek Ranch Rd. at Mud Flat. On the bank between the highway and the playa.
1348
Comment
UCD115377
Rorippa sinuata
Verne Grant; Irving Schneider
1947-8-1
8226
Lassen
Irrigation ditch running southwest into State Fish and Game nesting aera on west end of Section 19 on Madeline Plain.
Comment
NY182185
Rorippa sinuata
G. Schoolcraft
1983-6-28
1025
Lassen
1341.1
Comment
RSA702446
Rosa californica
L. P. Janeway
2004-6-26
8171
Lassen
High Cascade Range. Along Road 33N15 (Lassen Trail) between Patterson Flat and Aspen Flat. Black Mountains Experimental Forest.
1790
Comment
JEPS128172
Rosa woodsii
M. C. Mahoney, J. A. Nash
2017-8-7
CA 350 -87
Lassen
South of Horse Lake. From Susanville take Highway 139 N. Turn right Horse Lake Road (Highway 536). Continue for 5 miles. Population is on the right in a drainage running parallel to the road.
Comment
CHSC12477
Rosa woodsii subsp. ultramontana
Carol Weld
1969-6-26
42
Lassen
Springs near roadside, 7.8 miles S.W. of Eagle Lake Field Station.
1584
Comment
CHSC7724
Rosa woodsii subsp. ultramontana
Beverley J. Wise
1969-6-1
95
Lassen
N.E. city limits of Susanville, Chestnut street at junction with Hwy 139.
1310
Comment
CAS-BOT-BC148259
Rosa woodsii var. ultramontana
John Thomas Howell
1974-7-8
50492
Lassen
Susanville - Sierra Nevada
1295
Comment
RSA647522
Rosa woodsii var. ultramontana
Marion P. Harthill
1972-6-16
803
Lassen
Litchfield
1311
Comment
POM90170
Rosa woodsii var. ultramontana
Marcus E. Jones
1897-6-22
s.n.
Lassen
10 miles south of Amedee. [Lassen or Plumas Co.]
1220
Comment
CHSC23481
Rubus leucodermis
Wayne O. Baum
1971-7-5
71 -84
Lassen
E. slope of Gallatin Peak.
2072
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
CHSC25904
Rumex
K. R. Stern
1967-6-30
2445
Lassen
West central side of Eagle Lake.
1554
Comment
UC1746173
Rumex
Annetta M. Carter
1945-9-30
1720
Lassen
Sam Webb place near end of Eagle Lake.
1554
Comment
CHSC1357
Rumex hymenosepalus
M. Anthony
1954-5-1
Lassen
Hwy 395 between Susanville and Hallelujah Jct.
Comment
CDA23167
Rumex hymenosepalus
Sterling O. Mattoon
1977-5-3
Lassen
Highway 395 at North Access Road to Herlong.
0
Comment
SD64325
Rumex lacustris
Darley F. Howe
1966-8-25
Lassen
41 miles south of Alturas on hwy #395
1676
Comment
CAS-BOT-BC433633
Rumex lacustris
M. K. Bellue
1947-9-1
s.n.
Lassen
Along highway between Doyle and Janesville
Comment
UCR67452
Rumex salicifolius
George K. Helmkamp
1990-9-23
G- 14
Lassen
north of Ravendale
1677
Comment
UC1136137
Rumex salicifolius var. lacustris
E. Sawyer
1935-6-27
228
Lassen
Long Valley Sierraville Quad.
1310
Comment
UC1745636
Rumex salicifolius var. lacustris
Annetta M. Carter
1946-8-18
1776
Lassen
S end of Grasshopper Valley, N of Eagle Lake.
1615
Comment
UC1745691
Rumex salicifolius var. lacustris
Annetta M. Carter
1945-9-30
1718
Lassen
Sam Webb place near end of Eagle Lake.
1554
Comment
UC452565
Rumex salicifolius var. lacustris
Milo S. Baker
Lassen
near Eagle Lake
Comment
CHSC66396
Rumex salicifolius var. triangulivalvis
Vernon H. Oswald; Lowell Ahart
1996-6-17
7789
Lassen
Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville. Growing between the trail and Susan River at the Hwy.36 bridge.
1402
Comment
CAS-BOT-BC434262
Rumex triangulivalvis
John Thomas Howell
1934-7-8
12486
Lassen
Spalding's, Eagle Lake
Comment
CHSC111165
Rumex triangulivalvis
Lowell Ahart; John Dittes
2012-7-9
18302
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
JEPS121294
Rumex triangulivalvis
Lowell Ahart, John Dittes
2013-7-22
18867
Lassen
30 yards S of the man-made pond, about 120 yards E of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley.
Comment
CAS-BOT-BC109419
Rumex venosus
John Thomas Howell
1978-4-19
52865
Lassen
Sierra Nevada. Along Highway 395 between Doyle and Milford.
Comment
JEPS29739
Rumex venosus
Rimo Bacigalupi, and L. R. Heckard
1962-5-28
8494
Lassen
10 mi s Milford (along U.S. Hwy 395)
1219
Comment
UC1776705
Rumex venosus
G. Schoolcraft
1993-6-1
2267
Lassen
Along Hwy 395 about 1.5 mi. n. of turnoff to Wendel
1280
Comment
SEINET4176394
Rumex venosus
P. B. Kennedy
1901-6-10
s.n.
Lassen
R.R. Station, Constantia
Comment
CAS-BOT-BC445671
Sagittaria cuneata
L. S. Smith
1918-7-22
1009
Lassen
Modoc National Forest. Blue Lake
1874
Comment
CHSC12427
Sagittaria cuneata
Robert W. Severin
1969-6-25
17
Lassen
East side of Murrer's Upper Meadow, in irrigation ditch, 2 miles ese from E.L.B.S.
1584
Comment
JEPS88426
Sagittaria cuneata
Vernon H. Oswald and Lowell Ahart
1996-8-1
8107
Lassen
receding shore of the Mountain Meadows Reservoir ne Indian Ole Dam (sw of Westwood); Mountain Meadows Reservoir, ne of Indian Ole Dam
1539
Comment
JEPS107443
Salix exigua
Lowell Ahart, John Dittes
2005-6-1
11905
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
UC481924
Salix exigua var. hindsiana
Mrs. H. P. Bracelin
1931-6-29
485
Lassen
at edge of Pit River McArthur
960
Comment
CAS-BOT-BC107961
Salix geyeriana
John Thomas Howell; Gordon H. True; Margaret Williams
1973-5-12
49220
Lassen
Elysian Valley northwest of Janesville - Sierra Nevada
1325
Comment
CAS-BOT-BC124634
Salix lemmonii
John Thomas Howell
1976-7-20
52016
Lassen
along Willard Creek near its confluence with Susan River, about 5 miles west of Fredonyer Pass
1432
Comment
CAS-BOT-BC124636
Salix lemmonii
Hans Leschke
1960-8-5
1700
Lassen
Feather Lake
1996
Comment
CHSC13655
Salix scouleriana
E. L. Smith
1971-7-26
987
Lassen
At Eagle Lake Field Station ca. 20 mi nw of Susanville.
1615
Comment
CDA36352
Salsola gobicola
B. Villegas
2011-8-25
Lassen
Near Wendel; on Wendel Rd., 0.4 mile from Amadee Rd.
0
Comment
CDA37714
Salsola paulsenii
Breckenridge/Filippini
2007-6-14
s.n.
Lassen
Wendell Plains.
0
Comment
CHSC5274
Salvia aethiopis
1944-6-18
Lassen
Eagle Lake. Susanville roadside.
Comment
CHSC779
Salvia aethiopis
V. Holt
1945-6-22
Lassen
Dump near Susanville.
1297
Comment
UC104453
Salvia aethiopis
T. Brandegee
1892-6-30
Lassen
streets of Susanville
Comment
CDA34340
Salvia aethiopis
Anonymous
1987-6-18
Lassen
New Pine Creek, along Hwy 395 north into Oregon.
0
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
CHSC60277
Sambucus mexicana
P. V. Caldwell
1972-6-23
247
Lassen
Irrigation ditch at headwaters of Willow Creek, Upper Murer's Meadow, on the bank.
Comment
JEPS88210
Sanguisorba annua
Vernon H. Oswald and Lowell Ahart
1996-6-17
7787
Lassen
7 mi w of Susanville (Bizz Johnson Trail accessed at Devils Corral Trailhead located off Highway 36, edge of trail at the Hwy 36 bridge spanning the Susan River); Modoc Plateau, Bizz Johnson Trail
1402
Comment
JEPS947
Sanicula tuberosa
G. S. Crew, C. S. Robinson
6/1/1927-7/1/1927
12
Lassen
near Westwood Junction (Lassen National Forest, Norval Flat, sw Lassen County); Lassen National Forest, Norval Flat
2051
Comment
RSA74137
Sanicula tuberosa
M. S. Baker
1952-5-23
12426
Lassen
Hwy 36 E of Chester
Comment
CHSC115590
Saponaria officinalis
Lowell Ahart; John Dittes
2015-7-14
20323
Lassen
About 100 yards west 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
JEPS59876
Sarcobatus vermiculatus
W. L. Jepson
1918-8-4
7805
Lassen
Horse Lake
1554
Comment
CHSC4601
Sarcodes sanguinea
R. Ogren
1967-7-8
1
Lassen
Papoose Valley, 2 mi S of Gallatin Beach, Eagle Lake.
1524
Comment
CAS-BOT-BC466320
Sarcodes sanguinea
R. Carter
1967-6-22
536
Lassen
1/4 mi S of Corners on Peans Ridge Rd., on way to Mahogany Lake
1950
Comment
CHSC91792
Schoenoplectus acutus var. occidentalis
L. P. Janeway
2005-8-27
8525
Lassen
High Cascade Range. Northwest shore of Eagle Lake; east end of Sandy Beach, west side of Rocky Point.
1550
Comment
JEPS87446
Scirpus nevadensis
Vernon H. Oswald and Lowell Ahart
1993-6-14
5521
Lassen
ca 2.0 mi ene Spaulding Tract Rd. (Rd. 518, 33N89) (Eagle Lake Rd. (Lassen A1) at Sandy Beach on the w shore Eagle Lake, upper beach between rd. & lake); Sandy Beach, w shore Eagle Lake
1566
Comment
JEPS11413
Scrophularia desertorum
R. F. Hoover
1940-9-28
4632
Lassen
Susanville
Comment
SDSU11023
Scrophularia lanceolata
D. F. Howe
1962-8-2
3923
Lassen
Warner Mtns, Modoc National Forest.
1829
Comment
HSC82251
Scutellaria nana
Thomas W. Nelson, Jane P. Nelson
1980-7-6
6010
Lassen
Along Adin-Madelin Rd., 16 mi. E of Adin in Ash Valley
1555
Comment
SEINET10499152
Scutellaria nana
Mary Merello
1993-6-28
Merello 750
Lassen
Lassen National Forest, Poison Lake. Along Hwy. 44 just south of the Hwy. 89, Hwy. 44 intersection. Open pine-scrub and wetlands around lake. Volcanic soils.
1700
Comment
UC1537581
Scutellaria nana
Gordon H. True Jr.
1936-6-25
540
Lassen
e of Harvey Valley Ranger Station (Harvey Valley); Harvey Valley
1706
Comment
UC1609093
Scutellaria nana
Vernon H. Oswald and Lowell Ahart
1993-7-8
5653
Lassen
on se edge of Poison Lake (Pittville Rd. (Lassen 111, 36N01) 1.9 mi n of Hwy 44)
1709
Comment
UC1609176
Scutellaria nana
Vernon H. Oswald and Lowell Ahart
1993-6-28
5595
Lassen
e of Poison Lake (Harvey Valley Rd. (33N02), 2.0 mi n of Hwy 44, between Grays Valley and Harvey Valley); Harvey Valley Rd.
1734
Comment
UC773951
Scutellaria nana
L. R. Short, J. Warren
1936-6-23
S 445
Lassen
Burgess Spring Experiment Range; Lassen National Forest, Burgess Spring Experiment Range
1809
Comment
CAS-BOT-BC46020
Sedum lanceolatum
Clare B. Hardham
1971-8-22
18425
Lassen
Diamond Mountain
2346
Comment
CAS-BOT-BC46021
Sedum lanceolatum
John Thomas Howell; Gordon True; Wayne Dakan
1974-7-30
50670
Lassen
Summit ridge of Diamond Mountain
2346
Comment
CAS-BOT-BC363325
Senecio aronicoides
Jean Langenheim
1957-6-26
4372
Lassen
Northwest Said Valley, north-eastern part of Lassen County
Comment
CHSC23475
Senecio clarkianus
Wayne O. Baum
1971-7-14
71 -61
Lassen
N. slope of Gallatin Peak.
2011
Comment
CHSC20308
Senecio hydrophiloides
S. Villard
1973-7-7
63
Lassen
Meadow, off county dirt road, 5 mi from Red-Rock Lookout.
2133
Comment Read comments Apr 29 2013
CAS-BOT-BC363686
Senecio hydrophilus
A. A. Heller
1938-6-23
15192
Lassen
About 4 miles east of Westwood
1432
Comment
UC1594646
Senecio hydrophilus
Vernon H. Oswald and Lowell Ahart
1992-7-16
5128
Lassen
Feather Lake on s side Bridge Creek Spring Rd. ((County Rd. 112, Forest Rd. 31N06), ca 0.4 mi e of Champs Flat Rd. (County Rd. 105, Forest Rd. 32N02) between Old Station and Susanville); Feather Lake
1749
Comment
RSA0012449
Senecio hydrophilus
A. A. Heller
1938-6-23
15192
Lassen
east of Westwood, the margin bordered with sagebrush, where a tongue of Upper Sonoran protrudes into the Transition Life Zone.
Comment
CAS-BOT-BC363856
Senecio integerrimus var. exaltatus
Doris Kildale Gillespie
1930-5-13
9388
Lassen
Between Susanville and Janesville
Comment
RSA0124944
Senecio integerrimus var. exaltatus
E. K. Balls
1950-5-19
14 .772
Lassen
Above Ash Creek Public Camp, off rd. from Adin to Madeline.
1616
Comment
JEPS79212
Senecio serra var. serra
L. R. Heckard with R. C. Bacigalupi
1980-6-12
5253
Lassen
about 4.5 mi e Westwood Junction (along Highway 36)
1615
Comment
CAS-BOT-BC364254
Senecio triangularis
Clare B. Hardham
1971-8-22
18409
Lassen
Diamond Mountain. Aspen Swamp, North slope
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
UCR18733
Sidalcea glaucescens
Frank C. Vasek
1975-7-11
750711- 14
Lassen
Modoc Plateau, State Hwy 139, [Said Valley] 2 mi north of Grasshopper Valley at the junction with Termo Rd.
1650
Comment
UCR18792
Sidalcea glaucescens
Frank C. Vasek
1975-7-11
750711- 33
Lassen
Modoc National Forest, Hayden Hill Road c. 0.75-1.0 mi SW of Calif. Hwy 139
1829
Comment
CHSC30043
Sidalcea oregana
Cindy Prouty
1978-7-27
7
Lassen
Little Antelope Valley, W of Eagle L.
1792
Comment
HSC82270
Sidalcea oregana subsp. oregana
Thomas W. Nelson, Jane Nelson
1980-7-6
5996
Lassen
Along Adin-Madelin Rd., 16 mi. E of Adin in Ash Valley
1555
Comment
UC506975
Sidalcea oregana subsp. oregana
George A. Fischer, Irwin H. Johnson
1933-7-12
F- 227
Lassen
Lassen Forest , Patterson Flat
1737
Comment
UC871518
Sidalcea oregana subsp. oregana
C. L. Hitchcock
1940-5-26
6643
Lassen
1 mi w Bieber (overflow of the Pitt River); Pitt River, w of Bieber
Comment
POM260336
Sidalcea oregana subsp. oregana
C. L. Hitchcock
1940-5-26
6644
Lassen
Overflow of Pitt River, 1 mile W of Bieber
Comment
RSA719898
Sidalcea oregana subsp. oregana
Michael A. Vincent, K. Levings
2006-7-29
12906
Lassen
Along Rte. 36, 14.3 miles west of Susanville
Comment
UC1537657
Sidalcea oregana subsp. oregana
Gordon H. True Jr.
1937-7-10
789
Lassen
rocky mesa near Skeedaddle; near Skeedaddle
1493
Comment
JEPS28444
Silene bernardina
George W. Gillett
1957-8-28
928
Lassen
on trail to Widow Lake above junction with Snag Lake Trail (upper end of butte Lake Lassen Volcanic National Park); Lassen Volcanic National Park, upper end Butte Lake
1859
Comment
UC1523760
Silene bernardina
Gary Schoolcraft
1982-6-23
727
Lassen
Ft. Sage Mts.
1828
Comment
UC506918
Silene bernardina
George A. Fischer and Irwin H. Johnson
1933-7-14
F- 257
Lassen
Lassen Forest
1783
Comment
UC1523715
Silene douglasii
Gary Schoolcraft
1981-7-15
512
Lassen
near top Fredonyir Peak; near top Fredonyir Peak
2346
Comment
UC1137882
Silene lemmonii
H. P. Hagge
1929-9-17
36
Lassen
Logan Mtn. Eagle Lake Quad., Logan Mtn.
1828
Comment
CHSC4836
Silene nuda
R. Carter
1967-7-16
616
Lassen
Willow Creek Valley, e of Murrer's Ranch, 1.5 mi w of highway 139 on rd to Eagle Lake, ca. 12 mi n of Susanville, on s side of rd.
Comment
CHSC89312
Silene nuda
G. Douglas Barbe
1974-8-20
1936
Lassen
Upper Long Valley. Hallelujah Junction, northwest corner of jct of US Hwy 395 and Hwy 70.
1524
Comment
UC1137897
Silene nuda
E. Sawyer
1935-7-8
274
Lassen
7 3/4 mi ene Loyalton; Sierraville Quad., ene of Loyalton
Comment
CHSC5235
Sisymbrium altissimum
L. Harman
1946-6-26
Lassen
Webb's, Eagle Lake.
1584
Comment
UC1032501
Sisyrinchium bellum
A. Simontacchi
1940-6-15
863
Lassen
2.3 mi ssw of Black Mountain; Lassen National Forest
1798
Comment
UC4218
Sisyrinchium bellum
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3302
Lassen
Tule Confederacy Adobe Meadows; Honey Lake Valley
Comment
SBBG128753
Sisyrinchium bellum
L. Ahart, J. Dittes
2008-6-20
14964
Lassen
ca. 10 yards W of where the levee rd crosses Big Valley Canal, in Big Valley, ca. 4 mi (air) NE of the Headquarters at Ash Crk State Wildlife Area, ca. 7 mi (air) NE of Bieber
1263
Comment
CDA38565
Sium
F. A. Taylor
1939-7-5
s.n.
Lassen
Bieber.
0
Comment
CHSC106203
Solanum physalifolium var. nitidibaccatum
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
NY820340
Solanum triflorum
J. T. Howell
1973-7-10
49797
Lassen
Susanville, in city park
1295
Comment
HSC21315
Solanum triflorum
D. E. Anderson
1962-8-6
2331
Lassen
Lake at foot of Tule Mtn.
Comment
CHSC65299
Solidago velutina subsp. californica
Vernon H. Oswald
1995-8-21
7207
Lassen
Warner Mtns. Blue Lake located ca. 13 mi SE of Likely. On the W side of the lake.
1859
Comment
JEPS103173
Solidago velutina subsp. californica
G. Schoolcraft
1994-8-29
2426
Lassen
About 1 mile west of Susanville up Piute Creek
1341
Comment
UC1583971
Sonchus asper
G. Schoolcraft
1990-7-31
2117
Lassen
along Hwy 299 between Bieber and Nubieber
1249
Comment
CAS-BOT-BC438841
Sparganium natans
Andrew Townesmith; Karen M. Meyer
2007-7-22
844
Lassen
Lassen National Forest, Almanor Ranger District. 0.25 miles west of Forest Service road 10 on Forest Service road 31N24.
1981
Comment
UC2042785
Sphaeromeria cana
Barbara Ertter with Gary Schoolcraft
1987-6-16
7192
Lassen
Skeedaddle Mountains on NE side of Honey Lake, on S side of Hot Springs.
Comment
CHSC93240
Sphaeromeria potentilloides var. potentilloides
John Dittes; Scott Chamberlain
2004-6-28
1013
Lassen
Modoc Plateau; Long Valley; ca. 2.2 air-miles northeast of Hwy 70 at Beckwourth Pass, ca. 3.0 air-miles west of Hwy 395, ca. 0.9 air-miles east of Plumas County line; meadow.
1445
Comment
JEPS103181
Sphaeromeria potentilloides var. potentilloides
G. Schoolcraft
2000-6-19
2905
Lassen
Flat SE of Ravendale BLM Fire Station
1645
Comment
UC1567385
Sphaeromeria potentilloides var. potentilloides
G. Schoolcraft
1989-5-3
1865
Lassen
s Karlo (n end Secret Valley); n end Secret Valley
1341
Comment
UC13098
Spiraea densiflora
M. S. Baker and Frank Nutting
1894-7-30
Lassen
Silver Lake
Comment
CAS-BOT-BC149623
Spiraea douglasii
Louella Bass
1973-6-17
EV - 118
Lassen
Elysian Valley
1325
Comment
CAS-BOT-BC383109
Spiraea douglasii
Andrew Townesmith; Karen M. Meyer
2007-7-20
840
Lassen
Lassen National Forest, Eagle Lake Ranger District. Along Forest Service road 30N03, 0.5 mile from intersection with state route 36, at roadblock where two decrepit bridges cross Susanville River
1429
Comment
SEINET10737171
Spiraea douglasii
Andrew Townesmith, Karen M. Meyer
2007-7-20
Townesmith 840
Lassen
Lassen National Forest, Eagle Lake Ranger District. Along Forest Service road 30N03, 0.5 mile from intersection with state route 36, at roadblock where two decrepit bridges cross Susanville River. T29N R11E S6 SW 1/4.
1429
Comment
SEINET7707741
Spiraea douglasii
C. G. Gulling
1905-1
s.n.
Lassen
Big Meadows.
Comment
HSC95268
Spiranthes romanzoffiana
Gordon Leppig, J. Cromwell
1997-7-26
601
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
CHSC65281
Spirodela polyrhiza
Vernon H. Oswald
1995-8-21
7213
Lassen
Warner Mtns. Blue Lake located ca. 13 mi SE of Likely. At the SW corner of the lake.
1859
Comment
CHSC41843
Stachys ajugoides var. rigida
P. V. Caldwell
1972-7-8
262
Lassen
Eagle Lake. 1 mile from the forest road toward Papoose Meadows on Papoose Creek.
Comment
CHSC75482
Stanleya viridiflora
Vernon H. Oswald; Lowell Ahart
1999-6-9
9744
Lassen
Northeast of Susanville on County Rd. 216 (to Karlo and Biscar Wildlife Management Area) 5.2 mi west of Hwy. 395, 0.2 mi east of the RR crossing at Karlo.
1353
Comment
CHSC4946
Stellaria longipes var. longipes
R. Carter
1967-6-23
550
Lassen
In meadow, 25 yds w of dam in Murrer's Meadow.
1584
Comment
CHSC76747
Stellaria longipes var. longipes
L. P. Janeway
1999-9-5
6577
Lassen
High Cascade Range. Upper Pine Creek near Stephens Camp; northwest corner of Upper Stephens Meadow. On south edge of pond.
1900
Comment
UC1523750
Stellaria longipes var. longipes
Gary Schoolcraft
1981-6-25
484
Lassen
e fork Willard Creek
1584
Comment
JEPS94472
Stenotus acaulis
Vernon H. Oswald and Lowell Ahart
1997-5-27
8507
Lassen
0.3 mi e of Highway 139 (n of Susanville on Forest Route 38N04 between Hwy 139 near Willow Creek Guard Station and Coyote Flat, betw road and creek paralleling rd to north); Forest Route 38N04
1560
Comment
CAS-BOT-BC375307
Stephanomeria exigua subsp. coronaria
John Thomas Howell
1934-6-10
11847
Lassen
4 miles south of Omira
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
UC584294
Stephanomeria tenuifolia
G. L. Stebbins Jr. and J. A. Jenkins
1937-7-6
2207
Lassen
just w Susanville (on Inspiration Point)
1280
Comment
UCR244065
Stipa comata
Jim Andre, G. L. Clifton
1993-6-9
19691
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
UCR119113
Stipa elmeri
Beecher Crampton
1954-7-5
2064
Lassen
Modoc Plateau, 4.5 miles west of Susanville, along state highway 36
1433
Comment
UC1140903
Stipa exigua
L. D. Whitney
1935-6-16
3272
Lassen
base Crater Mt.
Comment
UCR119159
Stipa nevadensis
Beecher Crampton
1960-6-18
5729
Lassen
Warner Mountains, Southern edge of mountains, 1.25 miles north of Blue Lake in vicinity of Blue Lake Ranch.
1982
Comment
SEINET8512762
Stipa thurberiana
A. Rosenblum, A. Ortega, O. Schilling, M. Gray
2015-6-24
NV 030 -1093
Lassen
Costantia Allotment. Highway 395 North into California, then right on paved entrance road before Red Rock Road and red rock formation, follow road right (South), then left (East) at top of first hill, go in roughly 0.5 miles, population is along roadside
1461
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
UC1184065
Streptanthus tortuosus var. orbiculatus
Jean Langenheim
1957-6-26
4381
Lassen
from area adjacent to 1937 chaparral quadrat (ne part of Lassen Co.); Northwest Said Valley
Comment
SEINET8501999
Streptopus amplexifolius
C. G. Gulling
1905-1
1545
Lassen
Big Meadows.
Comment
POM102724
Suaeda moquinii
Marcus E. Jones
1897-6-23
s.n.
Lassen
Amedee.
1220
Comment
CHSC110305
Suaeda nigra
L. P. Janeway; B. Castro
2012-7-2
10925
Lassen
Modoc Plateau. Honey Lake Valley, northeast side of Honey Lake; 0.6 km west of Wendel Road, 4.8 air km southeast of Wendel.
1221
Comment
CHSC99142
Swertia albicaulis var. albicaulis
Lowell Ahart; John Dittes
2008-6-19
14881
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-BC269699
Symphoricarpos mollis
G. Schoolcraft
1997-6-24
2604
Lassen
Doyle Grade W of Doyle
1706
Comment
CAS-BOT-BC245874
Symphoricarpos rotundifolius
T. S. Brandegee
1892-6-26
s.n.
Lassen
Milford
Comment
CHSC67077
Symphoricarpos rotundifolius var. rotundifolius
Jeanne Boze
1981-6-12
120
Lassen
1/4 mi. south of Eagle Lake Field Station.
1615
Comment
HSC93475
Symphoricarpos rotundifolius var. rotundifolius
Gordon Leppig, Tony LaBanca
1998-7-13
964
Lassen
Modoc National Forest, Blue Lake Ranch.
1799
Comment
JEPS5932
Symphoricarpos rotundifolius var. rotundifolius
Frances D. Payne
1929-7-12
84
Lassen
ridge above Lost Lake (se extremity of Warner Mountains); Warner Mountains
2499
Comment
UC1143049
Symphyotrichum ascendens
L. R. Short
1936-8-24
S- 498
Lassen
Burgess Spring Experimental Range Lassen National Forest, Burgess Spr. Exp. Range
1792
Comment
CAS-BOT-BC97605
Symphyotrichum campestre
James Jokerst
1983-7-23
1867
Lassen
Grasshopper Valley Quad. Near Madeline Plains
1614
Comment
CAS-BOT-BC98929
Symphyotrichum foliaceum var. parryi
G. Schoolcraft
1994-7-6
2359
Lassen
About 1 mile west of Boot Lake
204
Comment
CAS-BOT-BC97917
Symphyotrichum frondosum
John Thomas Howell
1934-7-8
12508
Lassen
[Spalding's] Spalding, Eagle Lake
Comment
CHSC113936
Symphyotrichum spathulatum
Lowell Ahart
2014-8-20
19720
Lassen
All over the meadow, 0.8 mile west of Forest Road 32N22 (Westwood Logging Road), about 4.2 miles southeast (by road) from Bogard Rest Area on the south side of Highway 44.
1894
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
CHSC59074
Symphyotrichum spathulatum var. yosemitanum
Vernon H. Oswald; Lowell Ahart
1992-8-25
5179
Lassen
Lassen Volcanic National Park. Opening in forest on the W side of the trail ca. 0.1 mi NW of Cameron Meadow, between Juniper and Snag Lakes.
1950
Comment
CHSC108012
Taraxacum officinale
Lowell Ahart; John Dittes
2011-6-20
17490
Lassen
About 30 yards east of the stream, about 40 yards south 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
CHSC5219
Taraxacum officinale
J. Wolf
1946-6-23
Lassen
Pine Creek Slough, Eagle Lake.
1584
Comment
UC1776673
Taraxia subacaulis
G. Schoolcraft
1993-6-10
2288
Lassen
N of Clark's Valley Road E of Red Rock Lake
1828
Comment
CHSC36492
Taraxia tanacetifolia
Theresa Costa
1982-6-4
34
Lassen
Ca. 3/4 mi n Murrers Upper Meadow.
Comment
CHSC6193
Taraxia tanacetifolia
W. Vinyard
1946-6-10
Lassen
Pelican Point, Eagle Lake.
1556
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
SBBG20782
Taraxia tanacetifolia
A. I. Richardson
1961-5-31
11
Lassen
near Seaid Valley Reservoir
Comment
UC1122295
Taraxia tanacetifolia
A. Simontacchi
1940-6-8
830
Lassen
Halls Flat Ranger Station Lassen National Forest, Halls Flat Quadrangle
Comment
UC2027202
Taraxia tanacetifolia
Anthony Baniaga
2011-6-10
319
Lassen
Along highway 395 ca. 6.6 mi S of Karlo Rd. quadrangle.
Comment
UC20508
Taraxia tanacetifolia
Mrs. C. C. Bruce
June 1898
2203
Lassen
Susanville
Comment
UC972204
Taraxia tanacetifolia
Milo S. Baker
1952-5-23
12420
Lassen
Hwy 36 e Chester
Comment
UCD107052
Taraxia tanacetifolia
R. Carter
1967-6-23
547
Lassen
Upper part of Murrer's Meadow.
1584
Comment
CDA18275
Tetradymia canescens
G. D. Barbe
1974-8-2
1941
Lassen
Long Valley; Hallelujah Junction, northwest corner of jct of US Hwy 395 and Hwy 70.
1524
Comment
HSC103587
Tetradymia canescens
Thomas W. Nelson, Jane Nelson
1981-7-17
6734
Lassen
Along State Route 395, 22 mi. S of Susanville at milepost 46.80
Comment
UC1562341
Tetradymia canescens
Vernon Oswald and Lowell Ahart
1990-7-25
4398
Lassen
2.2 mi w Hwy 395 (intersection of Hwy 70 and Scott Rd)
1463
Comment
UC501445
Tetradymia canescens
Frank W. Peirson
1932-7-20
10354
Lassen
20 mi se Susanville
Comment
CAS-BOT-BC329050
Tetradymia canescens
John Thomas Howell; Gordon H. True; Wayne Daken
1974-7-30
50678
Lassen
summit ridge of Diamond Mtn.
2346
Comment
CHSC31084
Tetradymia glabrata
J. S. White
1980-4-14
125
Lassen
3 mi ne of Wendel.
1371
Comment
OBI75883
Tetradymia glabrata
Anthony Baniaga
2011-7-1
416
Lassen
BLM. Fort Sage MTs OHV area, E of Doyle. Quad
1442
Comment
UC585130
Tetradymia glabrata
E. B. Babcock, G. L. Stebbins Jr.
1936-6-7
1737
Lassen
mountain above Red Rock
1420
Comment
CAS-BOT-BC340100
Tetradymia spinosa
Elmer I. Applegate
1934-5-4
8935
Lassen
About 15 miles south of Ravendale
Comment
CHSC31075
Tetradymia spinosa
J. S. White
1980-4-14
117
Lassen
1 mi ne of Wendel.
1295
Comment
UCD55271
Tetradymia spinosa
Ellen Dean
2006-5-15
3081
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
CAS-BOT-BC399902
Thalictrum sparsiflorum
George W. Gillett
1957-7-24
897
Lassen
Lassen Volcanic National Park. Cameron Meadow
1950
Comment
RSA0026216
Thelypodium crispum
John F. Emmel
1997-6-9
1504
Lassen
Along Hwy. 395, 4.2 road miles SE of Ravendale, at south end Madeline Plains.
1622
Comment
JEPS81054
Thelypodium flexuosum
G. Schoolcraft
1980-5-16
Lassen
se of Wendel
1219
Comment
UCD55274
Thelypodium flexuosum
Ellen Dean
2006-5-15
3084
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
CAS-BOT-BC88086
Thelypodium howellii subsp. howellii
Arnold Tiehm; Gary Schoolcraft; Jan Nachlinger
1984-6-25
8826
Lassen
Rodeo Flat, 2.7 road miles west of the state line on Buckhorn road from Ravendale to Highway 81.
1828
Comment
UC1587065
Thelypodium integrifolium
G. Schoolcraft
1991-8-26
2226
Lassen
w of Robber's Roost
1341
Comment
UC2031889
Thelypodium integrifolium subsp. complanatum
Barbara L. Wilson with Richard Brainerd, Danna Lytjen, Bruce Newhouse and Nick Otting
2004-8-27
11183
Lassen
Grazing exclosure at Phone Spring, property of the Bureau of Land Management.
Comment
CAS-BOT-BC207182
Thinopyrum intermedium subsp. intermedium
John Thomas Howell
1975-7-23
551396
Lassen
Susanville - Sierra Nevada
1295
Comment
CAS-BOT-BC193471
Thinopyrum ponticum
T. C. Fuller
1963-7-15
10887
Lassen
S. of road to Little Valley 2.9 mi. SE of Pittville
Comment
CAS-BOT-BC193473
Thinopyrum ponticum
T. C. Fuller
1963-7-16
10920
Lassen
Head of Secret Valley, W side of Hwy 395 to Litchfield, 14.1 mi. S of Ravendale
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
CHSC75484
Thlaspi arvense
Vernon H. Oswald; Lowell Ahart
1999-6-9
9753
Lassen
Northeast of Susanville and 3.8 mi south of Biscar Wildlife Management Area on BLM 26030. Along a wash.
1347
Comment
JEPS124377
Thlaspi arvense
Lowell Ahart, John Dittes
2015-7-13
20309
Lassen
Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
Comment
CHSC71126
Thysanocarpus curvipes
Vernon H. Oswald; Lowell Ahart
1998-5-22
9129
Lassen
Road to summit of Fort Sage Mtns. 2.7 mi east of Fort Sage Rd., ca. 5 mi NE of Doyle. Along a streamlet.
1463
Comment
JEPS90108
Tragopogon dubius
Dean W. Taylor
1974-6-14
3706
Lassen
Poison Lake, on Highway 44 ca. 2 miles west from the junction with Pittville Road.
914
Comment
CAS-BOT-BC377166
Tragopogon pratensis
John Thomas Howell
1955-7-19
30824
Lassen
East side of Beckwourth Pass
1493
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
CHSC84439
Trichostema simulatum
Lowell Ahart
2003-8-17
10514
Lassen
On the west side of the paved road, on the east side of Highway 36, about 1/4 mile southwest of the Susan River, about 8 miles (air) southwest of Susanville.
1433
Comment
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
UCD169305
Trichostema simulatum
Lowell Ahart
2003-8-17
10514
Lassen
About 8 miles (air) southwest of Susanville, about 1/4 mile southwest of the Susan River, on the east side of Highway 36, on the west side of a paved road.
1433
Comment
CAS-BOT-BC219011
Trifolium andersonii subsp. andersonii
Jean Langenheim
1957-6-26
4369
Lassen
Northwest Said Valley, northeastern part of Lassen County. In silty area
Comment
CAS-BOT-BC219013
Trifolium andersonii subsp. andersonii
Jas. Vale; Keith Wagnon; Walter Knight; Irja Knight
1981-5-24
4114
Lassen
Between Eagle Lake and Susanville on state hwy. 139
Comment
CHSC65311
Trifolium cyathiferum
Vernon H. Oswald
1995-8-14
7187
Lassen
Modoc Plateau. Horse Lake Rd. (Lassen 536) at the railroad crossing 1 mi W of Hwy. 395, N of Susanville.
1645
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
OBI75890
Trifolium cyathiferum
Anthony Baniaga
2011-8-16
498
Lassen
Lassen Natl Forest. Along F.S. 10, ca. 1 mi NE of Cummings Spring. Red Cinder quad. T30N R8E sec 7SE of SW
1935
Comment
JEPS127180
Trifolium eriocephalum subsp. cusickii
Lowell Ahart, John Dittes
2016-7-15
21231
Lassen
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
CHSC117267
Trifolium eriocephalum var. cusickii
Lowell Ahart; John Dittes
2016-7-15
21231
Lassen
About 80 yards west of the road, about 100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
1267
Comment
UCSC011037
Trifolium geminiflorum
Lowell Ahart, John Dittes
2016-7-13
21120
Lassen
West edge of the pond, 80 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles east of Bieber, 7.3 miles southwest of Adin, hills at the southern slope of Big Valley
1289
Comment
UCSC011166
Trifolium geminiflorum
Lowell Ahart, John Dittes
2016-7-15
21233
Lassen
About 10 yards west of State Highway 299, Big Valley Mountains, 0.4 air miles northeast of Big Valley Summit, 5.0 air miles southwest of Bieber.
1398
Comment
JEPS126525
Trifolium hybridum
Lowell Ahart, John Dittes
2016-6-7
21019
Lassen
On the west edge of State Highway 299, Big Valley Mountains, 0.4 mile (air) northeast of Big Valley Summit, 5.0 miles (air) southwest of Bieber.
Comment
UC80412
Trifolium kingii var. productum
Mrs. R. M. Austin
1880-1
Lassen
Mt. Dyer
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
JEPS33203
Trifolium longipes subsp. hansenii
Frances D. Payne
1929-7-12
102
Lassen
Upper Silver Creek, northeastern Lassen County.
2286
Comment
UCSC011017
Trifolium longipes subsp. hansenii
Lowell Ahart, John Dittes
2016-7-15
21230
Lassen
About 80 yards west of the road, about 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; 41.183167 -121.036972
1268
Comment
CHSC107995
Trifolium longipes var. nevadense
Lowell Ahart; John Dittes
2011-6-20
17478
Lassen
About 15 yards east of the stream, about 40 yards south 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
RSA0037000
Trifolium longipes var. nevadense
Lowell A. Ahart, John Dittes
2008-6-20
14955
Lassen
About 200 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
1263
Comment
RSA716039
Trifolium longipes var. nevadense
L. Ahart
2005-6-1
11867
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
CHSC7673
Trifolium macrocephalum
Beverley J. Wise
1969-4-17
65
Lassen
1 mi. north on Hwy 139.
1341
Comment
UCD111342
Trifolium macrocephalum
Earl Coke
1934-1
s.n.
Lassen
location unknown.
Comment
UC1025070
Trifolium monanthum var. monanthum
Leo Whitney
1934-7-24
1502
Lassen
ca 7-8 mi sw Eagle Lake (Bridge Creek Camp near Bridge Creek); Lassen National Forest
1737
Comment
CAS-BOT-BC230742
Trifolium productum
A. M. Vollmer; L. Beane
1953-7-1
87
Lassen
Along Halls Flat road, beginning 6 miles west of Susanville to McArthur
1554
Comment
JEPS32136
Triglochin maritima
J. B. Davy
June 1897
3394
Lassen
Honey Lake Valley
Comment
UC486
Triglochin maritima
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3394
Lassen
Honey Lake Valley; Amedee
Comment
CHSC77200
Trimorpha lonchophylla
G. Schoolcraft
1999-6-29
2848
Lassen
E. edge of Madeline Plains about 9 mi. ne of Ravendale, CA.
1615
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
CHSC99111
Triteleia hyacinthina
Lowell Ahart; John Dittes
2008-6-20
14904
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 miles (air) northeast of Bieber.
1263
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
UC421857
Triteleia hyacinthina
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3386
Lassen
Adobe Meadows Honey Lake Valley
Comment
SEINET3890348
Triteleia hyacinthina
Arnold Tiehm, Jan Nachlinger; Margaret Williams
1988-6-2
11705
Lassen
East side of Snowstorm Mt., 18.1 road miles north of Wendel road on highway 395 from Susanville to Alturas.; 0
1402
Comment
SEINET3125312
Triticum aestivum
Richard R. Halse
2006-1
6991
Lassen
Modoc National Forest, along Blue Lake Road north of Blue Lake, about 15 miles ESE of Likely.
1860
Comment
CHSC21477
Tsuga mertensiana
1975-7-16
840
Lassen
On trail between Echo Lake and Summit Lake, Lassen National Park.
2133
Comment
NY500467
Ulmus pumila
J. T. Howell
1978-4-20
52869
Lassen
Susanville
1296.9
Comment
UC1924206
Urtica dioica
Debra Valov
2005-8-19
2005217
Lassen
Eagle Lake; Hwy 139. Mi. marker 25
1554
Comment
UC35006
Utricularia macrorhiza
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3339
Lassen
w. end of lake Honey Lake Valley
1219
Comment
UCD170232
Utricularia macrorhiza
K. M. Meyer; A. Townesmith
2007-7-21
148
Lassen
Lassen National Forest. 1.3 mile on Road 10 to Silver Lake off Road 110.
1963
Comment
SJSU3301
Utricularia macrorhiza
H. L. Buckalew
1961-7-6
Lassen
Warner Mts, upper end of Blue L
1828
Comment
CHSC96702
Utricularia vulgaris
Gordon Leppig; J. Cromwell
1997-7-27
612
Lassen
Modoc National Forest, Blue Lake Ranch. Peatland in large meadow complex.
1970
Comment
SD7779
Vaccinium uliginosum
Mrs. R. M. Austin
1882-1
Lassen
Willow Lake
Comment
SEINET8506752
Veratrum californicum
C. G. Gulling
1905-1
1540
Lassen
Big Meadows.
Comment
CAS-BOT-BC530502
Veratrum californicum
Clare B. Hardham
1971-8-22
18371
Lassen
near snow banks
2346
Comment
CHSC4925
Veratrum californicum var. californicum
L. G. Bennett
1967-7-14
179
Lassen
Beside road, 3 miles East of Silver Lake.
1828
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
CHSC117282
Verbascum blattaria
Lowell Ahart; John Dittes
2016-7-15
21227
Lassen
About 10 yards west 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.
1278
Comment
CHSC23507
Verbascum thapsus
Wayne O. Baum
1971-7-16
71 -66
Lassen
S. slope of Gallatin Peak.
2011
Comment
SEINET9186959
Verbena bracteata
G. Schoolcraft
1998-8-4
2800
Lassen
Along Hwy 395 berm.
1341
Comment
CHSC5073
Veronica
D. L. Stites
1967-7-1
105
Lassen
3 1/2 mi se of Eagle Lake Biology Station, Upper Murrer's Meadow.
1524
Comment
UC1012181
Veronica americana
Francis W. Pennell
1940-6-10
25775
Lassen
3 mi e of Westwood (Route 36)
1584
Comment
CHSC99506
Veronica arvensis
Lowell Ahart; John Dittes
2008-6-20
14925
Lassen
About 100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
1263
Comment
JEPS114654
Veronica arvensis
Lowell Ahart, John Dittes
2008-6-20
14925
Lassen
About 100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber
1263
Comment
JEPS124371
Veronica arvensis
Lowell Ahart, John Dittes
2015-7-13
20321
Lassen
Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
Comment
RSA715625
Veronica arvensis
L. Ahart, John Dittes
2005-6-1
11903
Lassen
On the south side of Scott Road, east side of the railroad underpass, Long Valley, about 4.75 miles (air) north of the intersection of Scott Road and Hwy 70, 6.2 miles (air) northwest of Hallelujah Junction.
1460
Comment
RSA523846
Veronica catenata
L. R. Heckard, Peter Rubtzoff
1971-8-3
2702
Lassen
1.3 miles west of Pit River bridge at Bieber. Along Pit River overflow at bridge 7-03.
1220
Comment
UC1567435
Veronica peregrina subsp. xalapensis
G. Schoolcraft
1989-7-24
1993
Lassen
along n shore of Said Valley Reservoir Said Valley Reservoir
1630
Comment
POM28600
Vicia americana var. americana
Marcus E. Jones
1897-6-28
s.n.
Lassen
Diamond Mountain; Susanville; Perkins Ranch.
1829
Comment
JEPS23987
Viola adunca
W. L. Jepson
1910-6-10
4110
Lassen
East Fork King Creek on Cinder Cone Trail; King Creek
2133
Comment
CHSC4939
Viola adunca var. adunca
W. Lessig
1967-7-20
20
Lassen
On rd to Silver Lake.
1828
Comment
UC1121558
Viola beckwithii
A. Simontacchi
1940-5-17
731
Lassen
5.7 mi ssw of Patterson Mountain; Lassen National Forest
1706
Comment
UCD110898
Viola lobata
H. Frederick
1925-7-28
s.n.
Lassen
Mt. Lassen.
Comment
SEINET9261634
Viola nephrophylla
Mrs. C. G. Gulling
1905-1
s.n.
Lassen
Big Meadows
Comment
HSC21869
Viola nephrophylla
Jim Vaughn
1956-8-11
Lassen
Horseshoe Lake, Lassen Volcanic National Park
1982
Comment
CHSC101027
Viola praemorsa subsp. linguifolia
John Dittes
2008-5-22
1537
Lassen
Modoc Plateau; ca 15.3 air miles southeast of Adin, ca. 3.5 air miles east of Hayden Hill, ca. 465 feet east of intersection of Hwy 139 and FS Road 36N02.
483
Comment
UC1763464
Viola praemorsa subsp. linguifolia
Milo S. Baker and F. P. Nutting
Jul 1894
1894
Lassen
hills N of Dixie Mountains
Comment
CHSC23555
Viola purpurea subsp. dimorpha
W. O. Baum
1971-6-21
22
Lassen
E slope of Gallatin Peak.
1920
Comment
CHSC5926
Viola purpurea subsp. dimorpha
J. B. Kimsey
1946-6-17
Lassen
Eagle Lake. Mt. Fredonyer.
2133
Comment
CHSC7741
Viola purpurea subsp. dimorpha
Beverley J. Wise
1969-4-21
121
Lassen
4 mi. south of Susanville on Las. Co. Rd. 204 (Gold Run Road).
1310
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
SD109520
Vulpia microstachys var. pauciflora
John R. Reeder, Charlotte G. Reeder
1981-5-20
7348
Lassen
3.5 km NNW of Janesville. Above Long Valley, near highway
1250
Comment
CHSC93659
Vulpia myuros var. hirsuta
Lowell Ahart; John Dittes
2005-6-2
11976
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
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
RSA715994
Vulpia myuros var. hirsuta
L. Ahart, John Dittes
2005-6-2
11976
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
UC1035999
Wyethia mollis
Helen K. Sharsmith
1955-6-22
4498
Lassen
Five miles beyond Blue Lake on road to Likely, Warner Mountains, Modoc National Forest.
1767
Comment
UCD32664
X Pseudelymus saxicola
Beecher Crampton
1954-7-5
2062
Lassen
Lassen County, 4.5 miles west of Susanville, along state highway 36.
1432
Comment
UC1099962
Zannichellia palustris
Malcolm A. Nobs and S. Galen Smith
1949-8-10
1476
Lassen
1 mi. n. Doyle (banks of Long Creek, Honey Lake Valley); Honey Lake Valley, Long Creek
Comment
CAS-BOT-BC454212
Zannichellia palustris
Peter H. Raven; Otto T. Solbrig
1958-6-17
13257
Lassen
Along United States Highway 395, 7.1 miles west of Standish
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