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
CAS-BOT-BC78036
Abies concolor
John Thomas Howell
1976-7-19
51966
Lassen
Gold Run Creek southwest of Susanville
1386
Comment
SD132529
Abies concolor
F. C. Vasek
1976-9-3
760903 3
Lassen
5 miles west of Susanville, north of State Highway #44 at a point Ao mile north of junction with State Highway #36
Comment
CAS-BOT-BC28648
Achillea millefolium
Louella Bass
1973-5-29
72
Lassen
Elysian Valley
1325
Comment
CAS-BOT-BC28650
Achillea millefolium
Albert Michael Vollmer; L. Beane
1953-7-1
97
Lassen
Along Halls Flat Road, beginning 6 miles west of Susanville to McArthur.
1554
Comment
CHSC5191
Achillea millefolium
J. B. Kimsey
1946-6-11
Lassen
Aspen Grove, Pine Creek, Eagle Lake, Lassen Co., California.
1580
Comment
CHSC60271
Achillea millefolium
P. V. Caldwell
1972-6-23
245
Lassen
Headwaters of Willow Creek, Upper Murer's Meadow.
Comment
JEPS127717
Achillea millefolium
Alejandro Brambila, Michael Dolan
2016-7-25
CA 320 -172
Lassen
Clarks Valley Road west off 395 right after Likely Mtn. About 1Mile before Christensen Corral
Comment
UC1136759
Achillea millefolium
L. R. Short and Wm. Gansberg
1936-7-9
S 483
Lassen
Burgess Spr. Exp. Range Lassen National Forest, Burgess Spr. Exp. Range
1804
Comment
UC74065
Achillea millefolium
J. Burtt Davy
Jun 17 1897-Jun 24 1897
Lassen
Chat; Long Valley
Comment Read comments Jan 7 2012
UCD50358
Achnatherum hymenoides
P. B. Kennedy
1901-6-10
s.n.
Lassen
R.R. Station, Constantia, California. Lassen County.
Comment
CAS-BOT-BC210663
Achnatherum lemmonii
John Thomas Howell
1976-7-19
51980
Lassen
On Gold Run Creek southwest of Susanville
1386
Comment
UC1024816
Achnatherum lemmonii
Leo Whitney
1935-6-19
3263
Lassen
Camp 10, Fruit Grower's Supply Company Lassen National Forest
Comment
SEINET11695935
Achnatherum nevadense
Unknown
1960-6-18
5729
Lassen
southern Warner Mountains, 1.25 mi N of Blue Lake, in vicinity of Blue Lake Ranch
1981
Comment
UC1143048
Achnatherum occidentale subsp. pubescens
L. R. Short and J. Warren
1936-6-29
S- 462
Lassen
Burgess Spring Experimental Range Lassen National Forest
1820
Comment
UCD51167
Achnatherum occidentale subsp. pubescens
A. H. Shunk
1923-8-1
s.n.
Lassen
Madeline.
Comment
UCD51205
Achnatherum occidentale subsp. pubescens
Beecher Crampton
1954-7-5
2069
Lassen
Along US Hwy. 395, 1 mile east of Johnstonville.
Comment
UCD51228
Achnatherum occidentale subsp. pubescens
George A. Fischer; Irwin H. Johnson
1933-7-12
F 218
Lassen
Lassen County.
1722
Comment
JEPS114857
Achnatherum thurberianum
Lowell Ahart, John Dittes
2008-6-19
14870
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
CHSC105251
Acmispon americanus var. americanus
Lowell Ahart; John Dittes
2010-7-31
16999
Lassen
On the north side of the road, about 15 yards west 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
CHSC29950
Acmispon americanus var. americanus
Robin L. Ondricek
1978-6-8
51
Lassen
Murrers Upper Meadow, .6 mi E of inersection with main rd. to ELFS.
1554
Comment
CHSC113083
Acmispon denticulatus
Lowell Ahart; John Dittes
2013-7-23
18888
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
JEPS60355
Aconitum columbianum
Brown and Wieslander
1922-7-30
19
Lassen
Eagle Lake, Martin Springs
Comment
OBI75866
Aconitum columbianum subsp. columbianum
Anthony Baniaga
2011-8-9
490
Lassen
Lassen Natl Forest. About 1/2 mi W of Griffith Hill, S of 30N21. Swain Mtn quad T30N R8E sec 8 NW of NW
1950
Comment
CAS-BOT-BC391608
Actaea rubra
Louella Bass
1973-6-17
119
Lassen
Elysian Valley
1325
Comment
CAS-BOT-BC391609
Actaea rubra
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49411
Lassen
Elysian Valley, west of Janesville
1325
Comment
POM1922B
Ageratina occidentalis
Marcus E. Jones
1897-6-25
s.n.
Lassen
Susanville.
1341
Comment
CAS-BOT-BC30232
Ageratina occidentalis
William Bridge Cooke
1938-8-24
11580
Lassen
In small valley just west of Bolam Creek. Also on an outcropping west of Horse Camp in the Shasta Fir Forest
2133
Comment
CAS-BOT-BC30233
Ageratina occidentalis
Hans Leschke
1964-9-4
1894
Lassen
Lassen Highway near Diamond Point
Comment
HSC63943
Ageratina occidentalis
Teresa Prendusi
1980-7-16
Lassen
Willow Creek
1463
Comment
UC29341
Agoseris X dasycarpa
M. S. Baker and Frank Nutting
1894-7-5
Lassen
Dixey Valley Dixey Valley
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
RSA715616
Agoseris glauca var. glauca
L. Ahart
2005-6-1
11849
Lassen
On the east side of the poor dirt road, about 1/2 mile west of Scott Road, Long Valley, about 2 air miles northwest of the intersection of Scott Road and Highway 70, 3.9 air miles northwest of Hallelujah Junction.
1449
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
UCD128593
Agoseris grandiflora
G. Schoolcraft
2000-6-19
2904
Lassen
Susanville; west of Cold Spring Valley.
1706
Comment
CHSC66231
Agoseris heterophylla
Vernon Oswald; Lowell Ahart
1996-6-24
7860
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
CHSC91310
Agoseris heterophylla
Lowell Ahart; John Dittes
2005-6-1
11885
Lassen
Along a poor dirt road, west of Scott Road, Long Valley, about 2 1/2 miles (air) northwest of the intersection of Scott Road and Highway 70, 4.0 miles (air) northwest of Hallelujah Junction.
1438
Comment
CHSC36467
Agoseris retrorsa
Jeffrey R. Peek
1982-6-3
28
Lassen
Ca. .6 mi W jct forest service rds 5.16 and 5.17, ca. 10 yd E 5.16 heading over Black Mtn.
Comment
UCR7835
Agropyron cristatum
Marilyn Malin
1968-6-21
247
Lassen
Brockman Flats Lava Bed,W side of Eagle Lake, site of 1956 Merrill burn
1600
Comment
CHSC50848
Agropyron desertorum
Vernon Oswald; Lowell Ahart
1990-7-25
4396
Lassen
Intersection of Hwy 70 and Scott Rd, 2.2 mi west of Hwy 395.
1463
Comment
UC60210
Agrostis
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3303
Lassen
Honey Lake Valley
Comment
CAS-BOT-BC127237
Agrostis exarata
John Thomas Howell; Gordon H. True
1973-7-31
50021
Lassen
Sierra Nevada. On road from Janesville to Thompson Peak, Diamond Range.
1737
Comment
JEPS100322
Agrostis exarata
Dean W. Taylor
2001-7-12
17829
Lassen
Diamond Mountains, spring at mouth of canyon ca. 4 miles NW of Constantia, along Forest Road 25N02X
1341
Comment
RSA129621
Agrostis exarata
H. S. Yates
1936-8-11
6067
Lassen
Baxter Creek
1280
Comment
UC1037106
Agrostis exarata
Leo Whitney
1934-9-1
3000
Lassen
Fredonyer Campground Lassen National Forest
1706
Comment
UCD52115
Agrostis exarata
R. Tofsrud
1947-7-1
240
Lassen
Between Bieber and Nubieber.
Comment
UCD52277
Agrostis exarata
Malcolm A. Nobs; Galen Smith
1949-7-21
1057
Lassen
4 miles N of Madeline.
Comment
CAS-BOT-BC139678
Agrostis gigantea
John Thomas Howell
1975-7-23
51401
Lassen
Sierra Nevada. Susanville.
1295
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
CHSC58860
Agrostis pallens
Vernon H. Oswald; Lowell Ahart
1992-7-16
5107
Lassen
Long Lake on the S side of Hwy. 44 between Old Station and Susanville, 1.2 mi SE of County Rd. A21.
1745
Comment
UC1567418
Agrostis pallens
G. Schoolcraft
1989-7-18
1978
Lassen
near Buck's Spring (s of Clark's Valley Rd)
1874
Comment
CHSC29905
Agrostis scabra
Robin L. Ondricek
1978-8-4
114
Lassen
Near edge of Eagle Lake along grassy shoreline.
1554
Comment
POM98581
Agrostis scabra
F. W. Peirson
1926-6-22
6808
Lassen
margin of Boiling Lake, Mt. Lassen National Park
Comment Read comments Apr 23 2013
SBBG115824
Agrostis variabilis
J. T. Howell, G. H. True
1973-8-1
50234
Lassen
Diamond Range, S of Susanville
Comment
CHSC113091
Alisma lanceolatum
Lowell Ahart; John Dittes
2013-7-22
18841
Lassen
West margin of a duck field, about 80 yards south of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
JEPS88427
Alisma plantago-aquatica
Vernon H. Oswald and Lowell Ahart
1996-8-1
8106
Lassen
sw Westwood (shore of reservoir ne of Indian Ole Dam); Mountain Meadows Reservoir
1539
Comment
CHSC111099
Alisma triviale
Lowell Ahart; John Dittes
2012-7-9
18294
Lassen
About 100 yards southeast of the tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
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
JEPS127168
Alisma triviale
Lowell Ahart, John Dittes
2016-7-15
21221
Lassen
Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
Comment
UCD150402
Alisma triviale
William Anderson
1963-7-10
s.n.
Lassen
Honey Lake Valley.
Comment
SEINET8193719
Allium
M. J. Williams
1969-6-14
s.n.
Lassen
Ravendale.
1615
Comment
CHSC64855
Allium acuminatum
Vernon H. Oswald
1995-6-26
6926
Lassen
Modoc Plateau. Ash Valley Rd. (Lassen 527), 8.5 mi w of Madeline, ca. 1 mi e of the reservoir at Fleming Sheep Camp.
1670
Comment
UC725432
Allium acuminatum
A. A. Heller
1938-6-23
15196
Lassen
e Fredonyer Pass (e of Westwood on State Highway #36)
1645
Comment
CAS-BOT-BC459570
Allium acuminatum
G. Schoolcraft
1989-5-31
1893
Lassen
Along Skedaddle Ranch Road near stateline, Susanville
1584
Comment
SEINET194965
Allium acuminatum
A. A. Heller
1938-1
Lassen
0
Comment
HSC69609
Allium anceps
Gary Schoolcraft
1980-4-30
215
Lassen
N base of Shaffer Mtn. near Shaffer Well
1354
Comment
SEINET3883805
Allium anceps
D. W. McNeal
1978-5-30
2127
Lassen
Beside Highway 395, 3.0 miles south of Ravendale.; 0
Comment
CHSC64812
Allium atrorubens var. atrorubens
Vernon H. Oswald
1995-6-7
6836
Lassen
Modoc Plateau, on N side of Wendel Rd. (Lassen 320) at milepost 11.0, 5.6 mi E of Wendel, NE of Susanville.
1237
Comment
UC1567422
Allium atrorubens var. atrorubens
G. Schoolcraft
1989-5-31
1888
Lassen
slopes of Skedaddle Creek n Wendel Rd.; Skedaddle Creek
1402
Comment
HSC84127
Allium lemmonii
Dale McNeal
1983-6-5
2840
Lassen
Beside Eagle Lake Rd., 0.5 mi. N of Hwy. 36
Comment
RSA27674
Allium lemmonii
C. L. Hitchock
1940-5-26
6640
Lassen
Overflow of Pitt River, 1 mile west of Bieber, in adobe soil
Comment
SEINET3885792
Allium lemmonii
Noel H. Holmgren, Patricia K. Holmgren
1978-6-12
8934
Lassen
Upper Smoke Creek, just south of Observation Peak, 17 km (10.5 mi.) airline distance east-southeast of Ravendale.; 0
1768
Comment
CAS-BOT-BC474076
Allium platycaule
John Thomas Howell; Gordon H. True; Wayne Dakan
1974-7-30
50684
Lassen
South and southeast of Diamond Mountain, Sierra Nevada
2286
Comment
RSA59747
Allium platycaule
E. K. Balls
1950-5-19
14782
Lassen
16.5 miles west of Madeline on road from Adin.
1677
Comment
CAS-BOT-BC476624
Allium tolmiei
E. K. Balls
1950-5-18
14 .767.
Lassen
Along Ash Creek, above Ash Creek Public camp, off rd. from Adin to Medeline.
1584
Comment
UC106708
Allophyllum integrifolium
T. S. Brandegee
1892-7-2
Lassen
Susanville
Comment
CAS-BOT-BC171315
Alnus incana subsp. tenuifolia
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49461
Lassen
Elysian Valley, W of Janesville. Sierra Nevada
1325
Comment
CAS-BOT-BC171317
Alnus incana subsp. tenuifolia
Brighton C. Cain
1925-8-24
117
Lassen
Mt. Lassen Volcaninc National Park, 1 mi below Drakesbad
1645
Comment
NY526213
Alnus incana subsp. tenuifolia
G. Schoolcraft
1982-8-18
887
Lassen
Along Doyle Grade Road, west of Doyle
1554.5
Comment
SEINET7295647
Alopecurus aequalis
A. A. Beetle
1941-1
2795
Lassen
10 miles west of Chester, rte 36
Comment
UC790958
Alopecurus aequalis
A. A. Beetle
1941-6-28
2795
Lassen
10 mi. w. Chester (Rte. 36)
Comment
UC1130818
Alopecurus geniculatus
A. Simontacchi
1940-6-15
876
Lassen
6.4 mi. w.-n.w. Cone Mt.; Lassen Nat'l Forest, Halls Flat Quad.
Comment
UCD55895
Alopecurus geniculatus
A. A. Beetle; G. L. Stebbins Jr.
1942-5-29
3371
Lassen
9.5 miles E of Bieber, Big Valley.
Comment
CHSC101019
Alyssum desertorum
John Dittes
2008-5-22
1538
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 on northeast side of Willow Creek.
483
Comment
CHSC67189
Alyssum desertorum
James D. Jokerst
1991-5-29
3317
Lassen
Modoc Plateau. Survey for reroute of Hwy. 139 at the N end of Eagle Lake, E and adjacent to the highway +/- 200 m S of its junction with the road to the W across the N end of the Lake.
1584
Comment
CHSC64769
Alyssum minus subsp. micranthum
Vernon H. Oswald
1995-5-31
6804
Lassen
Modoc Plateau. Smoke Creek Ranch Rd. 0.6 mi e of Hwy. 395, between Litchfield and Ravendale.
1371
Comment
CHSC67190
Alyssum minus subsp. micranthum
James D. Jokerst
1991-5-28
3293
Lassen
Modoc Plateau. Survey for reroute of Hwy. 139 at the N end of Eagle Lake, ca. 400 ft E of the highway on slopes above road, S of a small canyon mouth.
1554
Comment
CDA42845
Alyssum minus var. micranthum
L. Ahart, John Dittes
2011-6-2
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.
Comment
CDA23696
Amaranthus blitoides
S. E. Piper
1943-7-2
Lassen
0.5 mile east of Herlong.
0
Comment
CHSC27717
Amaranthus blitoides
Robert A. Schlising
1978-7-27
3319
Lassen
E of Eagle Lake and NE of Eagle L. Field Station.
1578
Comment
CHSC29942
Amaranthus blitoides
Robin L. Ondricek
1978-8-2
111
Lassen
Parking area at Eagle Lake Field Station.
1554
Comment
JEPS78111
Amaranthus blitoides
Gary W. Zamzow
1972-7-18
86
Lassen
beside Highway 395, 3 mi n Hallelujah Junction
1371
Comment
SEINET3871758
Ambrosia acanthicarpa
Richard R. Halse
2010-8-26
8089
Lassen
Along State Hwy. 70 at Beckwourth Pass ca 4.3 miles west of its junction with U.S. Hwy. 395 or 1.6 miles E of Sierra Valley.; 0
1584
Comment
SJSU13939
Ambrosia acanthicarpa
N. A. Hopkins
1986-8-28
1378
Lassen
by County Road 33 (Scott Road), lower Long Valley, N of Highway 70 & E of Beckwourth Pass
Comment
CAS-BOT-BC42889
Ambrosia acanthicarpa
P. Monnet
1913-8-1
966
Lassen
unspecified
Comment
CAS-BOT-BC142539
Amelanchier utahensis
Philip A. Munz
1947-5-20
11886
Lassen
Laufman Forestry Public Camp Ground, above Milford.
1524
Comment
UC12108
Amelanchier utahensis
Mrs. R. M. Austin
Jun 1894
Lassen
Willow Creek Valley
Comment
CAS-BOT-BC142538
Amelanchier utahensis
Philip A. Munz
1947-5-20
11886
Lassen
Laufman Forestry Public Camp Ground, above Milford
1524
Comment
CAS-BOT-BC222253
Amsinckia
John Thomas Howell
1934-6-16
12219
Lassen
Big Valley, 4 miles ne. of Bieber
Comment
CHSC91309
Amsinckia menziesii
Lowell Ahart; John Dittes
2005-6-1
11899
Lassen
Road edge, on the north side of Scott Road, east side of the railroad underpass, Long Valley, about 4 3/4 miles (air) north of the intersection of Scott Road and Highway 70, 6.2 miles (air) northwest of Hallelujah Junction.
1459
Comment
UC61145
Amsinckia tessellata var. tessellata
Jos. Burtt Davy
Lassen
Honey Lake Valley Awadee
Comment
SEINET6734941
Anaphalis margaritacea
C. G. Gulling
1905-1
s.n.
Lassen
Big Meadows
Comment
CHSC66371
Ancistrocarphus filagineus
Vernon H. Oswald; Lowell Ahart
1996-6-17
7797
Lassen
Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville. Modoc Plateau. Just E of Devils Corral Trailhead.
1420
Comment
JEPS28683
Angelica breweri
George W. Gillett
1957-7-26
910
Lassen
Lassen Volcanic National Park, e shore of Butte Lake Butte Lake; Lassen Volcanic National Park, Butte Lake
1859
Comment
CHSC12433
Antennaria
Robert Severin
1969-6-26
22
Lassen
Papoose Meadow, 4 mi s of E.L.B.S.; 1/4 mi n of Cow Camp.
1630
Comment
UC380911
Antennaria argentea
Marcus E. Jones, A. M.
1897-6-25
Lassen
Susanville
1341
Comment
UC891493
Antennaria argentea
C. L. Hitchcock
1940-5-26
6616
Lassen
ca 12 mi n of, at lava beds Fall River Mills (Shasta Co.); Fall River
1371
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
CAS-BOT-BC59218
Antennaria dimorpha
Ellsworth Bethel
1923-5-24
s.n.
Lassen
Poison Lake
Comment
CAS-BOT-BC69136
Antennaria geyeri
John Thomas Howell
1934-7-8
12492
Lassen
Spalding's, Eagle Lake
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
UC1137666
Antennaria geyeri
L. R. Short and Wm. Gansberg
1936-7-3
S- 475
Lassen
Lassen National Forest
1828
Comment
UC506910
Antennaria geyeri
George A. Fischer and Irwin H. Johnson
1933-7-17
F- 267
Lassen
Lassen National Forest
1722
Comment
CAS-BOT-BC58691
Antennaria luzuloides
John Thomas Howell
1934-7-6
12443
Lassen
Harvey Valley
Comment
UC1125572
Antennaria luzuloides
A. Simontacchi
1940-6-3
725
Lassen
8.3 mi se Alcohol Jacks Cabin; Halls Flat Quad.
1706
Comment
UC1137667
Antennaria luzuloides
L. R. Short and J. Warren
1936-6-23
S- 452
Lassen
Burgess Spr. Exp. Range Lassen National Forest, Burgess Spr. Exp. Range
1741
Comment
RSA0065403
Antennaria luzuloides
M. P. Harthill
1972-6-17
826
Lassen
Madeline.
1676
Comment
CHSC60811
Antennaria luzuloides subsp. aberrans
Vernon H. Oswald; Lowell Ahart
1993-6-28
5589
Lassen
Harvey Valley Rd. (33N02), 1.7 mi N of Hwy 44, E side of Grays Valley, E of Poison Lake.
1719
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
UC1583976
Antennaria rosea
G. Schoolcraft
1990-7-2
2103
Lassen
w of Cold Spring Mtn.
1645
Comment
CHSC65289
Anthemis cotula
Vernon H. Oswald; Lowell Ahart
1995-8-14
7175
Lassen
Modoc Plateau. Hwy. 395 at the N end of a flooded playa (Mud Flat) 3.4 mi N of Smoke Creek Ranch Rd., N of Susanville.
1348
Comment
CHSC112470
Apera interrupta
Lowell Ahart; John Dittes, Todd Sloat
2013-6-8
18733
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
JEPS96088
Apocynum androsaemifolium
Vernon H. Oswald and Lowell Ahart
1996-6-17
7777
Lassen
ca. 7 mi. w. Susanville (Bizz Johnson Trail accessed at Devils Corral Trailhead off Hwy. 36, n. side of Hwy. 36 between trail and hwy. bridges spanning the Susan R.); Modoc Plateau
1432
Comment
UCD21048
Apocynum androsaemifolium
E. Bortiri
2002-7-19
WFC 84
Lassen
Along Rd 35N08, about 8 miles North of Poison Lake and Hwy 44,.
Comment
SEINET7881828
Apocynum pumilum
Helen K. Sharsmith
1955-1
4516
Lassen
Ponderosa Pine-Black Oak forest adjacent to Highway 89 north of Hat Creek Ranger Station, Lassen National Forest. Altitude ca. 3800 feet.
1158
Comment
NY119422
Arabis rectissima
R. C. Rollins
1983-7-5
83227
Lassen
2 miles S of Eagle Lake Summit
Comment
RSA0001920
Arabis sabulosa var. frigida
Marcus E. Jones
1897-6-28
s.n.
Lassen
Top of Diamond Mt. Susanville. Perkin's Ranch.
2226
Comment
RSA152667
Arctostaphylos manzanita subsp. manzanita
I. L. Wiggins, Dorothy B. Wiggins
1961-6-10
16317
Lassen
2 miles E. of Plumas-Lassen County line, along California Highway 36, near Westwood.
Comment
UC21853
Arctostaphylos nevadensis
M. S. Baker and Frank Nutting
1894-1
Lassen
Comment
UC549429
Arctostaphylos patula
F. Farris
1934-12-30
Lassen
Diamond Mt.
1524
Comment
UC773875
Arctostaphylos patula
L. R. Short
1936-5-7
S- 346
Lassen
Burgess Spring Experiment Range Lassen <National> Forest
1859
Comment
CHSC7703
Arctostaphylos patula subsp. gankinii
Beverley J. Wise
1969-5-9
41
Lassen
11 mi. west of Susanville on Forest Serv. Rd. 8246 off Hwy 36.
1524
Comment
UC584338
Arenaria aculeata
G. L. Stebbins Jr. and J. A. Jenkins
1937-7-9
2262
Lassen
s Susanville (Bare summit ridge and ridges south west of Diamond Mt.)
2164
Comment
UC465892
Arenaria congesta var. congesta
Franklin P. Nutting
Lassen
Silver Lake
Comment
SEINET530728
Arenaria congesta var. lithophila
Paul Opler
2006-6-9
Lassen
Ash Valley Rd., 5.9 mi E of Adin.
1423
Comment
SEINET530729
Arenaria congesta var. lithophila
Paul Opler
2006-6-9
Lassen
Ash Valley Rd., 5.9 mi E of Adin.
1423
Comment
UC1249269
Arenaria congesta var. subcongesta
Arthur Cronquist, Arthur H. Holmgren
1959-6-17
8463
Lassen
50 m se Susanville
Comment
UC1299621
Arenaria congesta var. subcongesta
Freed W. Hoffman
1946-6-8
911
Lassen
Dry Creek, Highway 395
Comment
CAS-BOT-BC401791
Argemone munita subsp. rotundata
Ira L. Wiggins; Dorothy B. Wiggins
1961-6-11
16352
Lassen
4.5 mi. E. of Susanville
Comment
CAS-BOT-BC401792
Argemone munita subsp. rotundata
Elmer I. Applegate
1921-9-4
3545
Lassen
Hills north of Susanville
Comment
CHSC27596
Arnica chamissonis
George Deniso
1978-7-21
96
Lassen
E end of Mahogany Lake - SE of Eagle L.
2060
Comment
JEPS114706
Arnica chamissonis
Lowell Ahart, John Dittes
2008-6-20
14902
Lassen
In a wet meadow, about 150 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7.0 miles (air) northeast of Bieber
1263
Comment
SD113191
Arnica chamissonis
Darley F. Howe
1964-8-2
3921
Lassen
East Creek, Warner Mountains, Modoc National Forest
2010
Comment
UC73900
Arnica chamissonis
J. Burtt Davy
Jun 17 1897-Jun 24 1897
Lassen
Amedee Honey Lake Valley
Comment
CAS-BOT-BC82114
Arnica chamissonis
H. M. Hall; E. B. Babcock
1903-6-24
4270
Lassen
Near Great Spring, on Hat Creek
1402
Comment
RSA505386
Arnica chamissonis subsp. foliosa
R. C. Bacigalupi, G. Thomas Robbins
1955-7-20
5414
Lassen
Along Mosquito Creek in Corporation Meadow, Modoc National forest, southern end of Warner Mountains
2043
Comment
CHSC11767
Arnica cordifolia
Wayne O. Baum
1971-6-21
71 -5
Lassen
E. slope of Gallatin Peak.
1920
Comment
JEPS94480
Arnica cordifolia
Vernon H. Oswald and Lowell Ahart
1997-5-27
8527
Lassen
5.4 mi ne of Highway 139 0.4 mi e of its junction with the road to Shingle Mill Spring (n of Susanville on Forest Route 38N04); Forest Route 38N04
1798
Comment
JEPS118456
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
CHSC27166
Arnica dealbata
J. D. Prouty
1978-7-27
31
Lassen
2.4 mi w of jct with road A-1 on n side of Merrill Flat Rd, s of Eagle Lake.
1740
Comment
CHSC27167
Arnica dealbata
J. D. Prouty
1978-7-27
30
Lassen
3.9 mi w of jct with road A-1 on n side of Merrill Flat Rd just e of Roney Corral, s of Eagle Lake.
1770
Comment
CAS-BOT-BC85030
Arnica sororia
E. B. Babcock; G. L. Stebbins
1936-6-8
1788
Lassen
Gentle north facing slope of hillside, 2 miles north of Madeline.
1371
Comment
UC1609362
Arnica sororia
Vernon H. Oswald and Lowell Ahart
1993-7-8
5668
Lassen
Halls Flat Rd (33N18) 0.4 mi sw Pittville Rd. (Lassen 111, 36N01) (ca 5.4 air mi nw of Poison Lake, between road and open meadow to w)
1706
Comment
UC29582
Arnica sororia
M. S. Baker and Frank Nutting
1894-7-5
Lassen
Dixey Mts.
Comment
CAS-BOT-BC85028
Arnica sororia
Clarence Quick
1963-7-12
63 -37
Lassen
Black Mountain Experimental Forest east of Halls Flat
1859
Comment
UCD129144
Arnica sororia
G. Schoolcraft
1994-6-9
2298
Lassen
Ash Valley RNA between Adin and Madeline, CA.
1600
Comment
UCD129188
Artemisia arbuscula
F. C. Raney
1966-6-25
s. n.
Lassen
Harvey Valley, Lassen National Forest.
Comment
RSA359361
Artemisia arbuscula subsp. arbuscula
L. M. Shultz, John Shultz
1985-6-23
8603
Lassen
41 miles north of Susanville on Hwy 395.
1433
Comment
SD117633
Artemisia arbuscula subsp. arbuscula
Jack L. Reveal
1984-8-15
2842
Lassen
Along highway 44, ca. 19 miles north of Susanville
1584
Comment
UC773844
Artemisia arbuscula subsp. arbuscula
L. R. Short
1936-9-30
S- 506
Lassen
Burgess Spring Experimental Range Lassen National Forest, Burgess Spring Experimental Range
1746
Comment
UCR67442
Artemisia cana
George K. Helmkamp
1990-9-23
A- 5
Lassen
Northern Sierra Nevada Mountains, 3 mi east of Susanville, along State Road 36
1345
Comment
CAS-BOT-BC93742
Artemisia ludoviciana subsp. incompta
Louella Bass
1974-7-1
s.n.
Lassen
Sierra Nevada - Elysian Valley
Comment
RSA719608
Artemisia nova
A. Tiehm, Gary Schoolcraft
2003-9-11
14368
Lassen
2.9 miles north of Karlo Road on highway 395 from Litchfield to Alturas, just east of 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
CHSC7634
Artemisia rothrockii
Beverley J. Wise
1969-4-13
12
Lassen
2.9 mi east of the junction of Hwy 395 on Las. Co. Rd.338.
1463
Comment
CHSC23500
Artemisia tridentata
Wayne O. Baum
1971-7-30
71 -55
Lassen
S slope of Gallatin Peak.
2042
Comment
UCD129363
Artemisia tridentata
Beecher Crampton
1960-6-20
5736
Lassen
Grass Valley, 4 miles southeast of Black's Mountain Experiment Station, USDA.
1676
Comment
CHSC67056
Artemisia tridentata subsp. tridentata
Willis Ball
1969-6-19
4
Lassen
Found approx. 1/2 mile N of E.L.B.S.
1554
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
UC762002
Artemisia tridentata subsp. tridentata
R. F. Hoover
1940-9-28
4639
Lassen
Leavitt
Comment
CAS-BOT-BC99281
Artemisia tridentata subsp. vaseyana
G. Schoolcraft
1994-9-13
2431
Lassen
Just above gate along road to Fredonyer Pk. lookout.
2255
Comment
CHSC105766
Asclepias fascicularis
Nick Otting
2005-7-28
Lassen
Five Springs Creek, downstream from Five Springs.
1356
Comment
UCR67471
Aster foliaceus
George K. Helmkamp
1990-9-23
G- 12
Lassen
north of Ravendale
1677
Comment
CHSC69211
Astragalus
James D. Jokerst
1991-5-28
3299
Lassen
Modoc Plateau. Junction Hwy. 395 with Hwy. 36 SE of Susanville, E side of road 150 ft S of junction.
1280
Comment
RSA624916
Astragalus
B. J. Cox, Paul Gallian
1971-6-2
2599
Lassen
Hallelujah Jct. intersection of U.S. 395 and Hwy 70.
Comment Read comments Jan 15 2016
CAS-BOT-BC177433
Astragalus andersonii
John Thomas Howell
1934-6-10
11875
Lassen
Janesville
Comment
CHSC93569
Astragalus andersonii
Lowell Ahart; John Dittes
2005-6-1
11917
Lassen
Long Valley, along the east side of a poor road, about 4 1/2 (air) miles north of the intersection of Scott Road and Highway 70, 6.0 miles (air) northwest of Hallelujah Junction.
1425
Comment
NY791376
Astragalus andersonii
W. W. Eggleston
1911-5-29
6734
Lassen
Vicinity of Doyle Station
1290
Comment
SEINET5323325
Astragalus andersonii
M. J. Williams
1974-8-4
L- 74 -83
Lassen
west of Hwy 395, near Hwy 70 in former burn area
1494
Comment
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
NY797390
Astragalus canadensis var. brevidens
G. Schoolcraft
1988-7-7
1821
Lassen
Madeline Plains north of Observation Peak and Horne Ranch Road
1645.9
Comment
UC1567413
Astragalus canadensis var. brevidens
G. Schoolcraft
1989-6-19
1920
Lassen
along n shore Eagle Lake; n shore Eagle Lake
1554
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
RSA0028049
Astragalus curvicarpus
John F. Emmel
1996-7-14
1423
Lassen
North base of Ft. Sage Mts., south edge of Honey Lake Valley; gently sloping sandy flats 0.2-0.3 air mile north and 0.15-0.3 air mile east of 4818 ft. peak of Turtle Mtn.
1280
Comment
RSA111039
Astragalus curvicarpus
R. C. Barneby
1949-6-11
11
Lassen
Secret Valley, 18 miles S of R(illegible)
Comment
RSA111043
Astragalus curvicarpus
H. D. Ripley, R. C. Barneby, F. C. Ripley Jr.
1943-6-15
5752
Lassen
NE of Litchfield.
1234
Comment
SEINET12162068
Astragalus curvicarpus
K. R. Stern
1974-1
5816
Lassen
16.5 mi W of Madeline, on Madeline-Adin Rd. Likely Quadrangle, sec. 32, R11E T35N
1548
Comment
CHSC64876
Astragalus filipes
Vernon H. Oswald; Lowell Ahart
1995-6-19
6883
Lassen
Modoc Plateau. Between Litchfield and Ravendale on Smoke Creek Ranch Rd., 0.7 mi e of Hwy. 395. In wash on n side of road.
1371
Comment
HSC100805
Astragalus filipes
Lowell Ahart, John Dittes
2010-7-31
16976
Lassen
100 yd. NE of where the road crosses Hunsinger Draw, 1.9 (air) mi. NW of Moll Reservoir, 2.8 (air) mi. W of Ash Valley, and 8.4 (air) mi. SE of Adin.
1521
Comment
SBBG30554
Astragalus filipes
D. Myrick
1968-6-19
1959
Lassen
Hwy 395, 23 mi S of Alturas
1524
Comment
UCD55263
Astragalus filipes
Ellen Dean
2006-5-15
3061
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
RSA111097
Astragalus filipes
H. D. Ripley, R. C. Barneby, F. C. Ripley Jr.
1943-6-15
5459
Lassen
Volcanic mesa E. of Viewland.
1311
Comment
RSA339170
Astragalus filipes
Margaret J. Williams
1983-7-31
339170
Lassen
Ash Valley road, 17 mi. from Aden.
1829
Comment
UCD104699
Astragalus filipes
Michael A. Vincent
1999-6-9
8579
Lassen
Bureau of Land Management land; Madeline Plains. Southwest of US Rt. 395, southeast of CR 515 (Termo Road), south of BLM Rd. 1614, and southwest of Termo. Along jeep road to Schott Canyon.
Comment
CDA26675
Astragalus gibbsii
Taylor
Jun 1938
Lassen
Susanville.
0
Comment
POM24782
Astragalus gibbsii
Marcus E. Jones
1897-6-30
s.n.
Lassen
Susanville, 6 miles below Eagle Lake.
Comment
SD43503
Astragalus gibbsii
Philip A. Munz
1947-5-20
11889
Lassen
Milford, dry silty flats
1260
Comment
RSA110067
Astragalus gilensis
H. D. Ripley, R. C. Barneby
1944-5-29
5951
Lassen
Container
1372
Comment
CAS-BOT-BC186913
Astragalus inversus
H. D. Ripley; R. C. Barneby
1943-6-14
5749
Lassen
W. of Susanville
1310
Comment
RSA0006769
Astragalus inversus
H. D. Ripley, R. C. Barneby
1943-6-14
s.n.
Lassen
West of Susanville.
Comment
POM23664
Astragalus iodanthus
Marcus E. Jones
1897-6-24
s.n.
Lassen
10 to 15 miles west from Amedee.
1220
Comment
CHSC64785
Astragalus iodanthus var. diaphanoides
Vernon H. Oswald
1995-5-24
6763
Lassen
Modoc Plateau. Wendel Rd. (Lassen 320) 3.3 mi e of Amedee Rd. at Wendel.
1249
Comment
CAS-BOT-BC229045
Astragalus lemmonii
Marcus E. Jones
1897-6-19
s.n.
Lassen
Chat
1615
Comment
POM45790
Astragalus lemmonii
Marcus E. Jones
1897-6-19
s.n.
Lassen
Chat.
1616
Comment
NY675496
Astragalus lentiginosus var. chartaceus
N. H. Holmgren
1980-7-5
9519
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
CAS-BOT-BC187154
Astragalus lentiginosus var. chartaceus
John Thomas Howell; Gordon H. True; Margaret Williams
1973-5-12
49230
Lassen
On Highway 395, 7 miles southeast of Milford
1280
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
RSA109609
Astragalus lentiginosus var. chartaceus
H. D. Ripley, R. C. Barneby
1943-6-14
5744
Lassen
West of Susanville
1311
Comment
CHSC5280
Astragalus lentiginosus var. lentiginosus
1926-6-1
Lassen
Buck's Point, Eagle Lake.
1615
Comment
CHSC64877
Astragalus lentiginosus var. salinus
Vernon H. Oswald; Lowell Ahart
1995-6-19
6903
Lassen
Modoc Plateau. Between Litchfield and Ravendale on Smoke Creek Ranch Road., 8.5 mi e of Hwy. 395.
1444
Comment
CDA19719
Astragalus malacus
D. Tillotson
1942-6-1
s.n.
Lassen
Modoc Plateau; Madeline.
0
Comment
CDA26707
Astragalus malacus
T. C. Fuller
1963-6-11
10659
Lassen
West side of Highway 395 at road to Horse Lake, 1.5 miles south of Ravendale.
0
Comment
CHSC71083
Astragalus malacus
Vernon H. Oswald; Lowell Ahart
1998-5-22
9104
Lassen
Road to ORV parking area in Fort Sage Mtns. 0.5 mi east of Fort Sage Rd., ca. 5 mi NNE of Doyle.
1371
Comment
CHSC7666
Astragalus malacus
Beverley J. Wise
1969-5-3
55
Lassen
4.6 mi. east of junction of Hwy 395 on Las. Co. road 338 (Smoke Creek Road).
1554
Comment
UCD55300
Astragalus malacus
Ellen Dean; Gary Schoolcraft
2006-5-16
3121
Lassen
East of town of Susanville, along County Road A27 (Center Road). Private land north of California Correctional Facility owned by Virginia Johnston, to be purchased by state for expansion of alfalfa fields.
1251
Comment
HSC63126
Astragalus malacus
Teresa Prendusi
1980-4-28
1101
Lassen
Rice Canyon
1341
Comment
UC1561919
Astragalus obscurus
Barbara Ertter with Gary Schoolcraft
1987-6-16
7184
Lassen
ridge w Hot Springs VABM (Skeedaddle Mountains on ne side Honey Lake); Skeedaddle Mountains, ne side Honey Lake, w of Hot Springs
2133
Comment
JEPS54791
Astragalus pulsiferae
J. B. Davy
June 1897
Lassen
Chat Long Valley, Chat
Comment
UC1483870
Astragalus pulsiferae
G. Schoolcraft
1980-7-10
301 A
Lassen
near Eagle Lake Campground (at n end of Eagle Lake); n end Eagle Lake, near Eagle Lake campground
1584
Comment
UC65741
Astragalus pulsiferae
P. B. Kennedy
1901-6-10
Lassen
R.R. Station Constantia (Constantia)
Comment
NY694125
Astragalus pulsiferae var. pulsiferae
H. D. D. Ripley
1943-6-7
5499
Lassen
East side of Beckworth Pass, south Lassen Co.
1494
Comment
RSA0006848
Astragalus pulsiferae var. pulsiferae
H. D. Ripley, R. C. Barneby
1943-6-17
5799
Lassen
East side of Beckwourth Pass.
1494
Comment
CHSC23489
Astragalus purshii
Waynes O. Baum
1971-7-16
71 -70
Lassen
W. slope of Gallatin Peak.
1981
Comment
CHSC5282
Astragalus purshii
V. Holt
1944-7-9
Lassen
Dow Butte.
2042
Comment
CAS-BOT-BC194088
Astragalus purshii var. purshii
Marcus E. Jones
1897-6-28
s.n.
Lassen
Perkin's Ranch, top of Diamond Mt., Susanville
2225
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
CAS-BOT-BC194089
Astragalus purshii var. purshii
C. R. Quick
1964-7-28
64 -84
Lassen
Edge of Halls Flat , Black's Mt. Experimental Forest
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
UC1601984
Astragalus purshii var. tinctus
Mrs. R. M. Austin
1879-1
Lassen
Comment
CHSC68862
Astragalus whitneyi var. confusus
Vernon H. Oswald; Lowell Ahart
1997-6-24
8634
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
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
JEPS94456
Astragalus whitneyi var. confusus
Vernon Oswald and Lowell Ahart
1997-6-24
8634
Lassen
s of Susanville (near the small pond on the crest of Diamond Mountain, about midway between Aspen Flat and Red Rock Lookout); crest of Diamond Mountain
2249
Comment
CHSC71080
Athysanus pusillus
Vernon H. Oswald; Lowell Ahart
1998-5-22
9130
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
NY652203
Atriplex argentea var. hillmanii
G. Schoolcraft
1989-5-16
1874
Lassen
West of Highway 395 about 2 miles south of Karlo turnoff
1356.4
Comment
CDA23253
Atriplex confertifolia
Robin Breckenridge
2007-5-1
PDR# 1349824 B
Lassen
Wendel.
0
Comment
UCSB61625
Atriplex confertifolia
True, Jr., Gordon
1936-6-24
Lassen
North shore of Honey Lake, Honey Lake Valley
1219
Comment
UC1567451
Atriplex gardneri var. falcata
G. Schoolcraft
1989-5-16
1877
Lassen
Secret Valley w Hwy 395; Secret Valley
1347
Comment
SEINET515855
Atriplex gmelinii
Vernon H. Oswald
1998-9-8
9581
Lassen
Ash Creek and Big Swamp 2.2 mi north of Bieber on County Road 91 (Bieber-Lookout Rd.)
1259
Comment
SEINET515856
Atriplex gmelinii
Vernon H. Oswald
1998-9-8
9581
Lassen
Ash Creek and Big Swamp 2.2 mi north of Bieber on County Road 91 (Bieber-Lookout Rd.)
1259
Comment
CDA2954
Atriplex hortensis
E. E. Fix
1962-5-15
Lassen
Pete Mendiboure property, Madeline.
0
Comment
RSA122664B
Avena sativa
A. Simontacchi
1940-6-13
854
Lassen
3.4 miles W.S.W. of Patterson Mtn.; Halls Flat
1738
Comment
JEPS103182
Balsamorhiza
G. Schoolcraft
2000-4-26
2893
Lassen
West of Grasshopper Valley
1706
Comment
CHSC68609
Balsamorhiza hirsuta
Vernon H. Oswald; Lowell Ahart
1997-5-7
8402
Lassen
Smoke Creek Ranch Rd. 3.4 mi west of the CA-NV state line.
1420
Comment
CHSC7646
Balsamorhiza hookeri
Beverly J. Wise
1969-4-17
14
Lassen
1 mi north on Hwy 139.
1341
Comment
UC1368790
Balsamorhiza hookeri
John L. Strother
1970-5-23
957
Lassen
6 mi n Honey Lake
1280
Comment
UC1794994
Balsamorhiza hookeri
R. K. Brummitt
1998-5-17
19897
Lassen
12 km W of Susanville, E foot of Fredonyer Pass
1400
Comment
CAS-BOT-BC106490
Balsamorhiza hookeri
Ella Dales Cantelow
1941-5-22
3550
Lassen
Fredonyer Pass, 13 1/2 mi. w. of Susanville Hwy #36
Comment
UCD20370
Balsamorhiza macrolepis
Tom Vestal DVM
2002-5-23
s.n.
Lassen
south of Modoc National Forest Boundary along Little Valley Rd., NNE of Catfish Reservoir.
Comment
CHSC98317
Balsamorhiza macrolepis var. platylepis
B. Castro; L. P. Janeway
2005-7-10
1500
Lassen
Northern High Sierra Nevada. Nr Plumas Co line. Crest of the Diamond Mtns, overlooking NW end of Honey Lake, at N end of Stony Ridge. At NE edge of windswept, low flat ridge off end of jeep road ca 0.7 mi from its jcn with sharp bend in Rd 27N12, above headwaters of Stony Creek.
1993
Comment
UC1137703
Balsamorhiza sagittata
A. Simontacchi
1940-6-4
802
Lassen
7.0 mi sw of Jacks Lake (Halls Flat); Halls Flat
1828
Comment
CHSC5234
Barbarea orthoceras
A. Santos
1946-6-12
Lassen
Eagle Lake. Pine Creek.
1584
Comment
CHSC68741
Barbarea orthoceras
Vernon H. Oswald; Lowell Ahart
1997-5-27
8501
Lassen
North of Susanville on Forest Route 38N04 (between Hwy. 139 near Willow Creek Guard Station and Coyote Flat), 0.1 mi easat of Hwy. 139. On the flood plain of a creek paralleling the road.
1546
Comment
JEPS114368
Barbarea orthoceras
Lowell Ahart, John Dittes
2008-6-20
14949
Lassen
In meadow, about 300 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber
1263
Comment
CHSC63703
Bassia hyssopifolia
Vernon H. Oswald
1994-9-6
6469
Lassen
Willow Creek Wildlife Area on Hwy. 139, ca. 10 mi (air) N of Susanville. Common in the parking lot and along the levee road on the N side of the creek.
1490
Comment
CHSC76094
Bassia hyssopifolia
Lowell Ahart
1999-9-13
8206
Lassen
On the east side of the dirt road and 1/2 mile south of the sign in station, Honey Lake Wildlife Area, 4 1/2 miles (air) southeast of Standish.
1207
Comment
CHSC99983
Bassia hyssopifolia
L. P. Janeway
2008-8-2
9525
Lassen
Modoc Plateau. Honey Lake Valley, 4.9 air km southeast of Standish, along Mapes Road 0.3 km east of Lambert Lane.
1222
Comment
SEINET3872219
Bassia hyssopifolia
Richard R. Halse
2010-8-25
8088
Lassen
Along State Hwy. 139 ca 26.2 miles north of Susanville on the northeast shore of Eagle Lake.; 0
1559
Comment
UCD146585
Bassia hyssopifolia
Richard R. Halse
2010-8-25
8088
Lassen
along State Highway 139 around 26.2 miles north of Susanville on the northeast shore of Eagle Lake.
1559
Comment
JEPS124725
Beckmannia eruciformis
Virginia Hardham
1965-7-13
134
Lassen
1.4 mi. past junction As and 299 going west.
Comment
UC188777
Beckmannia syzigachne
Milo S. Baker
Lassen
Dixey Valley
Comment
UC37443
Beckmannia syzigachne
M. S. Baker and Frank Nutting
1894-7-6
Lassen
Dixey Valley
Comment
UC573777
Beckmannia syzigachne
H. S. Yates
1936-8-11
6078
Lassen
2 mi ese Susanville; Susanville Quadrangle
1280
Comment
UC1191930
Berula erecta
Malcolm A. Nobs, S. Galen Smith
1949-8-20
1487 a
Lassen
1 mi s of Doyle (Long Creek); Long Creek
Comment
CDA38212
Berula erecta
T. C. Fuller
1963-7-15
10891
Lassen
South of road to Pittsville, 5.4 miles northwest of Little Valley.
0
Comment
CHSC117276
Bidens cernua
Lowell Ahart; John Dittes
2016-7-15
21225
Lassen
On the west side of the road about 600 yards south of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
UC30552
Bidens cernua
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3309
Lassen
Tule Confederacy
Comment
CAS-BOT-BC413001
Bistorta bistortoides
A. A. Heller
1938-6-4
15141
Lassen
2 miles east of Westwood
1402
Comment
CAS-BOT-BC413002
Bistorta bistortoides
L. G. Bennett
1967-7-14
174
Lassen
5.3 miles from the junction of Highway 44 and the Silver Lake rd. on Highway 44
1950
Comment
CHSC4444
Blepharipappus scaber
K. R. Stern
1967-7-1
2444
Lassen
Murrer Meadow Road, ca. 2.5 mi SE of Eagle Lake Biology Station.
1554
Comment
UC1143001
Blepharipappus scaber
August L. Hormay
1934-5-15
Lassen
1 mi n of Eldrigde's
1554
Comment
UC1924224
Blepharipappus scaber
Debra Valov
2004-6-8
2004250
Lassen
Bieber; off County A2 c. 8 km east of Hwy 299
1271
Comment
OBI48164
Blepharipappus scaber
Rhonda Riggins
1989-4-27
1640
Lassen
US 395, 8.4 mi N Litchfield, 26.6 mi S Ravendale
1311
Comment
SEINET10757900
Blepharipappus scaber
Billy Joe Cox
1971-6-2
Cox 2984
Lassen
Appox. 12 mi. S of Adin on CA. Hwy. 139, in basalt & clay; along edge of road on rolling knoll, in Artemisia-Juniper assoc.
1372
Comment
SEINET3132721
Blepharipappus scaber
J. L. Strother
1970-5-13
953
Lassen
ca. 6 mi. N of Honey Lk.
1280
Comment
UCD129601
Blepharipappus scaber
Bob Powell; Vic Claussen
1986-7-17
3274
Lassen
6 air miles south - southwest of Nubieber, within 100 feet of gate across main north-south trending road.
1402
Comment
RSA0125855
Boechera
Christopher Davidson
1975-6-6
2723
Lassen
3.9 miles from jct of county roads 204 and 205 on road 204 along Gold Run Creek, SW of Susanville.
1395
Comment
CAS-BOT-BC14089
Boechera pauciflora
A. Simontacchi
1940-6-6
822
Lassen
10.2 miles SE of Nigger Cabin.
1737
Comment
CHSC75356
Boechera puberula
Vernon H. Oswald
1999-5-7
9725
Lassen
Modoc Plateau. Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville. On the S side of the trail just E of Devils Corral Trailhead.
1420
Comment
CAS-BOT-BC25512
Boechera retrofracta
John Thomas Howell; Gordon H. True
1973-7-31
50039
Lassen
Sierra Nevada. Diamond Range on road from Janesville to Thompson Peak.
1737
Comment
UC1143032
Boechera retrofracta
L. R. Short
1936-6-1
S- 354
Lassen
Burgess Spring Experimental Range Lassen National Forest
1859
Comment
CAS-BOT-BC25677
Boechera sparsiflora
H. D. Ripley; R. C. Barneby
1944-3-29
5948
Lassen
South of Constantia.
1447
Comment
CAS-BOT-BC25706
Boechera sparsiflora
Reed Clark Rollins; Kathryn W. Rollins; Aileen Roads
1983-7-5
83226
Lassen
Plumas National Forest. Above Laufman Ranger Station. 4.5 miles east of US Highway 395.
Comment
CAS-BOT-BC25864
Boechera subpinnatifida
Doris Kildale Gillespie
1930-5-14
9382
Lassen
Fredonia [Fredonyer] Pass near Susanville.
Comment
CAS-BOT-BC25900
Boechera suffrutescens
John Thomas Howell
1934-7-10
12537
Lassen
Between Harvey Valley and Patterson Flats.
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
CHSC27122
Bromus briziformis
Robert A. Schlising
1978-6-28
3295
Lassen
E of Eagle Lake at Lower Dry Lake.
1645
Comment
CHSC36451
Bromus briziformis
Susan H. Euing
1982-6-2
5
Lassen
Ca. 5 yds n of Ravendale Rd, ca. 3 1/2 mi e of Hwy 139 and Ravendale Rd.
Comment
CAS-BOT-BC149583
Bromus carinatus var. carinatus
Parkison
1916-6-21
42
Lassen
Near Patterson.
1706
Comment
UC53631
Bromus carinatus var. carinatus
M. S. Baker and Frank Nutting
1894-7-5
Lassen
s of Dixie Valley
Comment
UCD59087
Bromus carinatus var. marginatus
L. Whitney
1933-8-1
s.n.
Lassen
Harvey Mountain. Lassen Forest.
1828
Comment
UCD59099
Bromus carinatus var. marginatus
R. Tofsrud
1947-7-1
224
Lassen
Between Ravendale and Thermo.
Comment
UCD59217
Bromus carinatus var. marginatus
L. Whitney
1935-6-19
3262 a
Lassen
Fruit Grower's Supply Company, Lassen National Forest.
Comment
HSC22359
Bromus commutatus
D. E. Anderson
1969-7-5
4991
Lassen
Freedonyer Pass, 15 mi. W of Susanville
1752
Comment
RSA0065491
Bromus commutatus
Marion P. Harthill
1974-6-14
s.n.
Lassen
Madeline.
1524
Comment
UCD59488
Bromus diandrus
L. D. Whitney
1935-6-28
s.n.
Lassen
Bieber.
Comment Read comments Jun 24 2009
CHSC112471
Bromus hordeaceus
Lowell Ahart; John Dittes, Todd Sloat
2013-6-9
18783
Lassen
Along the fence on the west side of the north-south road, on the west side of McArthur Diversion Canal, 2.1 air-miles south of Rat Farm Boat Launch, 1.2 air-miles north of McArthur, Fall River Valley, McArthur Swamp.
1007
Comment
CAS-BOT-BC155323
Bromus inermis
John Thomas Howell; Gordon H. True
1973-8-1
50221
Lassen
Sierra Nevada. East slope of Diamond Range south of Susanville.
2164
Comment
CHSC5253
Bromus inermis subsp. inermis
P. Balch
1955-7-23
Lassen
Stafford's Eagle Lake Resort.
1569
Comment
CDA1829
Bromus japonicus
A. A. Beetle
1941-6-28
2817
Lassen
6 miles south of Ravendale, lower slopes of Observation Peak.
0
Comment
CHSC64901
Bromus japonicus
Vernon H. Oswald; Lowell Ahart
1995-6-19
6874
Lassen
Modoc Plateau. Between Litchfield and Ravendale on Smoke Creek Ranch Rd., 0.3 mi e of Hwy. 395.
1383
Comment
OBI82789
Bromus japonicus
Robert L. Johnson, Mikel R. Stevens
2015-7-10
3923
Lassen
1.9 rd miles west of jct with Hwy 395 on Dawn Dr on E side of Shaffer Mountain. Ca 18 air mi ene of downtown Susanville.; 0
1545
Comment
UC1131320
Bromus marginatus
H. P. Hagge
1929-9-14
33
Lassen
Logan Mountain
1828
Comment
RSA0062688
Bromus subvelutinus
Marion P. Harthill
1971-6-21
210
Lassen
Susanville.
Comment
CAS-BOT-BC161576
Bromus suksdorfii
Clare B. Hardham
1971-8-22
18407
Lassen
Diamond Mountain.
Comment
CDA1862
Bromus tectorum
A. A. Beetle
1941-6-28
2796
Lassen
Rte. 36, 10 miles west of Chester.
0
Comment
CHSC23519
Bromus tectorum
Wayne O. Baum
1971-7-5
71 -15
Lassen
S. slope of Gallatin Peak.
2042
Comment
CHSC91293
Bromus tectorum
Lowell Ahart; John Dittes
2005-6-1
11909
Lassen
Road edge, on the north side of Scott Road, east side of the railroad underpass, Long Valley, about 4 3/4 miles (air) north of the intersection of Scott Road and Highway 70, 6.2 miles (air) northwest of Hallelujah Junction.
1459
Comment
HSC79991
Bromus tectorum
William Rothstrom
1975-6-9
Lassen
Johnstonville, 0.25 mi. S of Hwy. 395, W of airport
Comment
UC1024872
Bromus tectorum
Leo Whitney
1935-5-26
3155
Lassen
10 mi e of Adin (Ash Creek); Ash Creek
Comment Read comments Jun 24 2009
SEINET10515057
Bromus tectorum
Billy Joe Cox, David B. Dunn
1971-6-2
Cox 3117
Lassen
6 mi n of hallelujah jct on us hwy 395, in artemisia tridentata, pinyon pine, Jeffery pine along high ridge and in sandy wash.
1402
Comment
CAS-BOT-BC185001
Calamagrostis stricta subsp. inexpansa
A. A. Beetle
1941-6-28
2805
Lassen
10 miles west of Chester.
Comment
HSC95308
Calamagrostis stricta subsp. inexpansa
Gordon Leppig, Kai Neander, Juli Neander
1997-7-25
685
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
CAS-BOT-BC438314
Calandrinia ciliata
T. L. Secrest
1961-6-8
s.n.
Lassen
Edge of McCoy Flat Reservoir, ca. 14 mi. n. of Westwood
Comment
UC1537209
Calochortus leichtlinii
Gordon H. True Jr.
1936-6-25
533
Lassen
n side Hog Flat Reservoir
1524
Comment
CAS-BOT-BC487963
Calochortus leichtlinii
T. S. Brandegee
1892-7-2
s.n.
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
UC1136686
Calyptridium monospermum
A. Simontacchi
1940-6-17
941
Lassen
2.3 mi ssw of Blacks Mountain (Lassen National Forest); Lassen National Forest
1798
Comment
CHSC6233
Calyptridium umbellatum
L. Harman
1946-6-23
Lassen
Roop mountain.
2133
Comment
UC699726
Calyptridium umbellatum
Farris Farris
1936-6-15
Lassen
Eagle Lake road
1676
Comment
RSA122815
Calystegia occidentalis subsp. occidentalis
L. R. Short, Wm. Gansberg
1936-7-3
S- 469
Lassen
MDM, Burgess Spr. Exp. Range.
1849
Comment
CDA39903
Calystegia occidentalis subsp. occidentalis
T. C. Fuller
1965-6-3
13606
Lassen
Chemically treated railroad right of way, Susanville.
0
Comment
UC843733
Camassia quamash subsp. breviflora
A. A. Heller
1938-6-4
15140
Lassen
2 mi s of Westwood
1524
Comment
CHSC64770
Camelina microcarpa
Vernon H. Oswald
1995-5-31
6807
Lassen
Modoc Plateau. Smoke Creek Ranch Rd. 1.3 mi e of Hwy. 395, between Litchfield and Ravendale.
1353
Comment
POM38357
Camissonia andina
Marcus E. Jones
1897-6-19
s.n.
Lassen
Chat.
1616
Comment
RSA339990
Camissonia andina
Noel Holmgren, Patricia K. Holmgren
1980-7-5
9521
Lassen
Lassen County: upper Smoke Creek drainage, 20.4km (12.7miles) from Hwy 395 via Rye Patch Canyon, 24km (15miles) airline distance SE of Ravendale
1585
Comment
POM38501
Camissonia claviformis subsp. cruciformis
Marcus E. Jones
1897-6-23
s.n.
Lassen
Amedee.
1220
Comment
RSA144902
Camissonia claviformis subsp. cruciformis
G. I. Stage, R. Thorp
1959-6-20
59 -116
Lassen
9.6 miles north of Litchfield
Comment
RSA38439
Camissonia claviformis subsp. cruciformis
P. A. Munz
1947-5-19
11873
Lassen
19 miles south of Ravendale.
1341
Comment
NY851343
Camissonia contorta
LeDoux
1973-5-25
870
Lassen
Collected 3 miles north of Milford on Hwy 395 at Honey Lake campgrounds
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
HSC30040
Camissonia subacaulis
D. H. Norris, S. Dowty, T. Nelson
1971-6-22
19152
Lassen
3 mi. N of Westwood
Comment
NY852052
Camissonia subacaulis
G. Schoolcraft
1993-6-10
2288
Lassen
North of Clark's Valley Road east of Red Rock Lake
1829
Comment
NY852083
Camissonia tanacetifolia
G. Schoolcraft
1997-7-2
2607
Lassen
On Mud Flat west of Highway 395
1341
Comment
NY852078
Camissonia tanacetifolia
P. H. Raven
1962-5-28
17876
Lassen
0.5 mile north of Ravendale
Comment
CAS-BOT-BC160875
Camissonia tanacetifolia subsp. tanacetifolia
Noel H. Holmgren; Patricia K. Holmgren
1980-7-3
9477
Lassen
Madeline Plains, a valley road 1.1 km (0.7 mi) west of US Highway 395 from a turnoff 10.3 km (6.4 mi) south of Madeline
1620
Comment
CAS-BOT-BC160877
Camissonia tanacetifolia subsp. tanacetifolia
R. K. Gierisch; D. H. Esplin
1969-7-18
3550
Lassen
Near Modoc National Forest. Madeline Plains
Comment
RSA339989
Camissonia tanacetifolia subsp. tanacetifolia
Noel Holmgren, Patricia K. Holmgren
1980-7-3
9477
Lassen
Madeline Plains, a valley road 1.1 km (0.7 mi.) west of U.S. Highway 395 from a turnoff 10.3 km (6.4 mi.) south of Madeline
1616
Comment
CAS-BOT-BC160874
Camissonia tanacetifolia subsp. tanacetifolia
Peter H. Raven
1962-5-28
17875
Lassen
11.6 miles north of Litchfield
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
UC1609211
Cardamine breweri
Vernon H. Oswald and Lowell Ahart
1993-8-3
5743
Lassen
ca 13 mi (air) n. Lake Almanor (s.w. edge Cooper Swamp located e. of Silver Lake just e. of the Caribou Wilderness); Cooper Swamp
1932
Comment
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
UC117814
Cardamine nuttallii var. covilleana
Brandegee
1892-7-2
Lassen
Susanville
Comment
UC725739
Carex
A. A. Heller
1942-9-7
16531
Lassen
Echo Lake Lassen Volcanic National Park
Comment
CHSC76790
Carex angustata
L. P. Janeway
1999-9-5
6574
Lassen
High Cascade Range. Upper Pine Creek near Stephens Camp; northwest corner of Upper Stephens Meadow.
1900
Comment
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
CDA33021
Carex athrostachya
T. C. Fuller
1980-8-5
20309
Lassen
Adjacent to boat ramp, campground on the east shore of Dodge Reservoir, 28 km (17.5 miles) northeast of Ravendale.
0
Comment
SEINET7550707
Carex athrostachya
John Thomas Howell
1934-7-7
12472
Lassen
Pine Creek Flat.
Comment
HSC95168
Carex cusickii
Gordon Leppig, J. Cromwell
1997-7-26
600
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
HSC95276
Carex cusickii
Gordon Leppig, J. Cromwell
1997-7-27
620
Lassen
Modoc National Forest, Blue Lake Ranch.
1970
Comment
CHSC110089
Carex davyi
Barbara L. Wilson; Peter Zika
2011-8-7
16805
Lassen
Highway 44 near mile post 12.50, at junction with road 32N22 and road to Harney Valley.
1740
Comment
SEINET11309924
Carex davyi
D. E. Lepley
2012-1
1
Lassen
On the South flank of Whaleback Mt., about 3.5 air miles NNW of Christie Campground at Eagle Lake and about 500 feet from FS21 (Road 32N02), on the Pikes Point 7.5' quad. UTM (NAD83, Garmin GPSmap 60CS): 0680730 x 4498190 at the northernmost, 0680750 x 4498124 at the southernmost.
Comment
UC2046018
Carex deflexa var. boottii
Nick Otting and Dick Brainerd
2003-7-15
683
Lassen
Sierra Nevada Mountains, Diamond Mountain, 1000 feet east of summit, 7.5 air miles south-southwest of Susanville.
Comment
CHSC91329
Carex douglasii
Lowell Ahart; John Dittes
2005-6-1
11863
Lassen
On the west side of the poor dirt road, about 1/2 mile west of Scott Road, Long Valley, about 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.9 miles (air) northwest of Hallelujah Junction.
1448
Comment
HSC66737
Carex douglasii
J. P. Smith, J. O. Sawyer
1971-5-23
4664
Lassen
Along Hwy. 139, 1 mi. S of jct. with road to Thermo
Comment
SEINET10823343
Carex douglasii
Gordon H. True
1939-6-15
True 996
Lassen
Bullard Lake west of Grasshopper Valley.
Comment
CAS-BOT-BC75502
Carex echinata var. ormantha
Leo Whitney
1934-8-2
1967
Lassen
Bridge Creek Camp.
1737
Comment
SEINET7485202
Carex filifolia
Barbara L. Wilson, Danna Lytjen and Nick Otting
2005-1
11451
Lassen
northeast part of Round Corral Reservoir, north of Buckhorn Road about a mile and a half west of Pyramid Lake
1876
Comment
UCD140321
Carex filifolia var. erostrata
Beecher Crampton
1960-6-20
5739
Lassen
Harvey Valley, 6 miles north Bogard Ranger Station, Lassen National Forest.
1676
Comment
CHSC61066
Carex lasiocarpa
Vernon H. Oswald; Lowell Ahart
1993-8-3
5752
Lassen
Cooper Swamp located E of Silver Lake just E of the Caribou Wilderness, ca. 13 mi (air) N of Lake Almanor. In the NW part of the swamp.
1932
Comment
HSC103667
Carex lemmonii
Thomas W. Nelson, Jane Nelson
1985-8-10
8006
Lassen
Along north side of Silver Lake
1829
Comment
CHSC76848
Carex lenticularis var. lipocarpa
L. P. Janeway; Loren Gehrung
1999-10-9
6594
Lassen
High Cascade Range. In southwestern arm of Caribou Lake,
1995
Comment
HSC95192
Carex limosa
Gordon Leppig, T. LaBanca, L. Arguello
1997-6-29
543
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
CHSC110970
Carex nebrascensis
Lowell Ahart; John Dittes
2012-7-9
18298
Lassen
Scattered along a small drainage, about 150 yards southeast of the tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northest of Bieber, Big Valley.
1267
Comment
CAS-BOT-BC119714
Carex nervina
Clare B. Hardham
1971-8-22
18405
Lassen
Diamond Mountain.
2133
Comment
CAS-BOT-BC119715
Carex nervina
Clare B. Hardham
1961-6-17
7508
Lassen
Baxter Creek south of Susanville.
Comment
CHSC66413
Carex pellita
Vernon H. Oswald; Lowell Ahart
1996-6-17
7809
Lassen
Modoc Plateau. Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville.
1420
Comment
CHSC89747
Carex petasata
L. P. Janeway
2004-6-26
8153
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
UC1133449
Carex petasata
Robert W. Gardner
1937-6-18
G 6
Lassen
Burgess Spring Experimental Range
1699
Comment
JEPS107839
Carex praegracilis
Lowell Ahart, John Dittes
2005-6-1
11859
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
Comment
SEINET10585735
Carex praegracilis
Lowell Ahart, John Dittes
2011-6-20
Ahart 17477
Lassen
T38N, R10E, center of north 1/2 Section 22. 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.
1521
Comment
SEINET7572131
Carex praegracilis
Lowell Ahart, John Dittes
2005-6-1
11879
Lassen
About 3/4 mile west of Scott Road, Long Valley, about 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.9 miles (air) northwest of Hallelujah Junction.
1470
Comment
SEINET7572132
Carex praegracilis
Lowell Ahart, John Dittes
2005-6-1
11864
Lassen
On 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
CAS-BOT-BC118402
Carex praegracilis
G. Schoolcraft
1987-5-5
1695
Lassen
Along shore of Eagle Lake near Stone Ranch.
1554
Comment
HSC48218
Carex rossii
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19222
Lassen
2 mi. N of Westwood
Comment
UC2031874
Carex sheldonii
Nick Otting and Danna Lytjen
2003-7-21
714
Lassen
Modoc Plateau, Cedar Creek near Moon Lake, 6.25 air miles east-northeast of Madeline.
Comment
HSC48075
Carex simulata
D. H. Norris, F. J. Hermann
1972-5-17
22630
Lassen
Deep canyon 18 mi. N of Litchfield on Hwy. 395 (milepost 94.6)
Comment
HSC95281
Carex simulata
Gordon Leppig, J. Cromwell
1997-7-27
619
Lassen
Modoc National Forest, Blue Lake Ranch.
1970
Comment
HSC95325
Carex simulata
Gordon Leppig, Tony LaBanca, L. Arguello
1997-6-28
509
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
JEPS96099
Carex simulata
Vernon H. Oswald and Lowell Ahart
1996-6-17
7815
Lassen
Bizz Johnson Trail at 6.0 mi post e Devils Corral Trailhead (<trailhead> located off Hwy 36 ca 7 mi w of Susanville); Modoc Plateau
1420
Comment
UC1108042
Carex specifica
E. B. Copeland
1932-8-15
Lassen
woods between Hat Lake and Summit Lake; Mount Lassen
1981
Comment
CAS-BOT-BC117018
Carex straminiformis
Clare B. Hardham
1971-8-22
18423
Lassen
Diamond mountain.
Comment
HSC97395
Carex straminiformis
L. P. Janeway
2003-7-24
7917
Lassen
High Cascade Range, along FS 30N14, 1.1 km from FS 30N21, upper Susan River, 4.7 mi. W of Clover Valley
1932
Comment
CAS-BOT-BC116621
Carex subfusca
Leo David Whitney
1934-8-2
1971
Lassen
Moist stream bank, Bridge Creek Camp.
1737
Comment
CAS-BOT-BC116622
Carex subfusca
W. B. Cooke; V. G. Cooke
1976-10-7
53192
Lassen
Lassen Volcanic National Park, Butte Lake.
1841
Comment
CAS-BOT-BC115281
Carex utriculata
L. S. Smith
1918-8-11
1020
Lassen
Lost Lake.
Comment
CAS-BOT-BC115282
Carex utriculata
W. B. Cooke; V. G. Cooke
1976-10-7
53193
Lassen
Butte Lake, Near lake shore, Lassen Volcanic National Park.
Comment
HSC103651
Carex utriculata
Thomas W. Nelson, Jane Nelson
1985-8-10
8009
Lassen
Along north side of Silver Lake
1829
Comment
JEPS103197
Carex vallicola
B. Corbin
2001-5-30
1002
Lassen
S of Harter Flat, along jeep road 1 mi S of Nelson Corral Res.
1868
Comment
RSA298353
Carex whitneyi
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19241
Lassen
About 2 miles north of Westwood.
Comment
CHSC116919
Castilleja angustifolia
J. P. Bergmann
2011-4-30
Lassen
Fort Sage OHV Recreation Area.
1450
Comment
CHSC64808
Castilleja angustifolia
Vernon H. Oswald
1995-5-31
6801
Lassen
Modoc Plateau. Smoke Creek Ranch Rd. 0.4 mi e of Hwy. 395, between Litchfield and Ravendale.
1383
Comment
RSA17674
Castilleja angustifolia
Elmer I. Applegate
1934-5-4
8921
Lassen
South of Secret Valley.
Comment
UC1393122
Castilleja angustifolia
John L. Strother
1970-5-23
954
Lassen
about 6 mi n Honey Lake
1280
Comment
CHSC5077
Castilleja applegatei subsp. pinetorum
R. Clicquennoi
1967-6-30
27
Lassen
W cent. shore of Eagle Lake, 1/2 mi s of Pelican Point.
1554
Comment
CHSC6267
Castilleja applegatei subsp. pinetorum
M. West
1946-6-20
Lassen
Meadown above Grasshopper Valley.
1645
Comment
CHSC7751
Castilleja applegatei subsp. pinetorum
Beverley J. Wise
1969-5-3
106
Lassen
28.4 mi. N.E. of Susanville.
1554
Comment
UC1063044
Castilleja applegatei subsp. pinetorum
K. E. Bradshaw
1939-5-27
238
Lassen
n end Black Mountain Experimental Forest (Plot 39-1); Lassen National Forest, Halls Flat Quad.
1767
Comment
CAS-BOT-BC249620
Castilleja applegatei subsp. pinetorum
F. Farris
1935-5-15
s.n.
Lassen
Ramsey ranch near Susanville
Comment
JEPS94529
Castilleja arachnoidea
Vernon Oswald and Lowell Ahart
1997-6-24
8642
Lassen
s of Susanville (near the small pond on the crest of Diamond Mountain, about midway between Aspen Flat and Red Rock Lookout); crest of Diamond Mountain
2249
Comment
JEPS23848
Castilleja campestris subsp. campestris
Peter H. Raven and Otto T. Solbrig
1959-6-17
13295
Lassen
4.8 mi s Madeline (along U.S. Hwy 395)
Comment
UC1609193
Castilleja campestris subsp. campestris
Vernon H. Oswald and Lowell Ahart
1993-7-8
5644
Lassen
near se end Poison Lake (0.4 mi n of Highway 44, Pittville Rd (Lassen 111,36N01), near its intersection with 33N11); near se end Poison Lake
1709
Comment
UC725999
Castilleja campestris subsp. campestris
A. A. Heller
1938-6-23
15218
Lassen
between Termo and Madeline (along U.S. Hwy 395)
1615
Comment
HSC69066
Castilleja linariifolia
Gary Schoolcraft
1979-7-5
124
Lassen
Near top of Observation Peak
2134
Comment
CAS-BOT-BC244892
Castilleja miniata
John Thomas Howell
1934-7-10
12559
Lassen
Black's Mt.
Comment
CAS-BOT-BC244891
Castilleja miniata
anonymous
1927-7-1
40
Lassen
Bogard R. S. pasture
1712
Comment
POM44361
Castilleja miniata
Marcus E. Jones
1897-6-30
s.n.
Lassen
Susanville, 4 miles below Eagle Lake.
1524
Comment
CAS-BOT-BC241001
Castilleja pilosa
B. Bartholomew; B. Anderson
1988-6-25
4369
Lassen
Long Valley, southern end of the Warner Mountains
2080
Comment
CAS-BOT-BC241002
Castilleja pilosa
Doughitt; Parkison
1916-6-8
4
Lassen
Lassen National Forest. Harvey Valley
1676
Comment
CHSC12962
Castilleja pilosa
K. R. Stern
1974-6-26
5871
Lassen
Open sagebrush scrub adjacent to Pine Creek, 3.7 mi n of intersection between County Rd. A-21 to Westwood and Hwy. 44, on e side of Hwy. 44.
Comment
JEPS114696
Castilleja pilosa
Lowell Ahart, John Dittes
2008-6-20
14947
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
RSA0047057
Castilleja pilosa
L. P. Janeway
2004-6-26
8151
Lassen
High Cascade Range. Halls Flat; about 0.3 km east of Road 33N13; 3.5 km north of junction of Road 33N18.
1714
Comment
UC1012185
Castilleja pilosa
Francis W. Pennell
1940-6-9
25761
Lassen
5 mi s Ravendale (Route 395)
1645
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
CHSC60853
Castilleja tenuis
Vernon H. Oswald; Lowell Ahart
1993-6-28
5576
Lassen
Harvey Valley Rd. (33N02), 0.2 mi N of Hwy 44, E side of Grays Valley, E of Poison Lake.
1749
Comment
RSA0045639
Castilleja tenuis
Lowell Ahart, John Dittes
2008-6-22
15027
Lassen
About 20 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
CDA7137
Castilleja tenuis
G. Schoolcraft
1993-6-29
s.n.
Lassen
Ash Valley RNA 16 miles E of Adin, CA
Comment
CHSC29953
Caulanthus major
Robin L. Ondricek
1978-6-8
46
Lassen
Ridge E of Lower Dry Lake.
1767
Comment
CHSC80621
Caulanthus major var. nevadensis
Vernon H. Oswald; B. Corbin, K. Earll, G. Schoolscraft
2001-6-2
10036
Lassen
Northeast of Doyle in the Fort Sage Mtns, trail to top of mountin from the end of a $WD road.
1828
Comment
CAS-BOT-BC49258
Ceanothus cuneatus
Alice Eastwood; John Thomas Howell
1940-6-11
7993
Lassen
Big Valley Mts.
Comment
CAS-BOT-BC52054
Ceanothus prostratus
Ira L. Wiggins; Dorothy B. Wiggins
1961-6-10
16318
Lassen
2 miles E of Plumas-Lassen County line, along California Highway 36, near Westwood
Comment
CHSC107342
Ceanothus prostratus
Lowell Ahart; John Dittes
2011-6-20
17496
Lassen
Forest floor, about 40 yards west of the stream, about 300 yards north of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin.
1520
Comment
UC1281294
Ceanothus prostratus
H. E. McMinn
1941-8-27
5400
Lassen
3.5 mi from Pine Cone Inn (5 mi from Newbieber [Neubieber?]); 5 mi from Neubeiber
Comment
HSC30197
Ceanothus prostratus var. laxus
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19257
Lassen
Harvey Valley near Cone Springs
Comment
CHSC91290
Ceanothus velutinus var. velutinus
Lowell Ahart; John Dittes
2005-6-2
11943
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
JEPS107853
Ceanothus velutinus var. velutinus
Lowell Ahart, John Dittes
2005-6-2
11943
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
RSA747546
Ceanothus velutinus var. velutinus
K. M. Meyer, A. Townesmith
2007-7-23
153
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
CDA7344
Centaurea squarrosa
Loring White
1950-8-19
Lassen
Cramer Ranch. Big Valley.
0
Comment
JEPS30734
Centaurea virgata subsp. squarrosa
E. E. Fix
1960-9-21
Lassen
Bieber, vic. of
Comment
CHSC76087
Centromadia pungens subsp. pungens
Lowell Ahart; Vernon H. Oswald
1999-9-13
8224
Lassen
On the north side of Mapes Road, about 1/2 mile east of Lambert Lane, about 3 1/2 miles (air) southeast of Standish.
1210
Comment
CAS-BOT-BC400183
Ceratophyllum demersum
D. Toren; B. Trowbridge
1975-6-19
5183
Lassen
Blue Lake
1828
Comment
CAS-BOT-BC143810
Cercocarpus ledifolius var. ledifolius
A. G. Brenneis
1928-5-28
3
Lassen
1/2 mi. East of Willow Springs, Lassen National Forest
1371
Comment
CHSC23520
Cercocarpus ledifolius var. ledifolius
Wayne O. Baum
1971-6-28
71 -47
Lassen
E. slope of Gallatin Peak.
2103
Comment
CHSC61997
Cercocarpus ledifolius var. ledifolius
Brian Murray
1994-6-4
20
Lassen
0.8 miles North of the A21 turnoff on road A1. 50 ft. from the ice cave.
1554
Comment
RSA0027356
Chaenactis
John F. Emmel
1994-7-17
1331
Lassen
Summit area of Observation Peak.
2378
Comment
RSA637572
Chaenactis douglasii
Michael A. Vincent
1999-6-9
8582
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
CHSC13597
Chaenactis douglasii var. douglasii
J. Pitts
1972-6-22
256
Lassen
20 yds. se of Shepherd's Hall, Eagle Lake Field Station.
Comment
HSC42418
Chaenactis douglasii var. douglasii
Barbara Kelly
1977-8-9
560
Lassen
16 1/4 mi. E of Madeline on the dirt road from Adin
Comment
CAS-BOT-BC276621
Chaenactis douglasii var. douglasii
Gary Schoolcraft
1982-7-6
766
Lassen
Fort Sage Mountains, near Jesus Spring
1950
Comment
HSC68932
Chaetadelpha wheeleri
Gary Schoolcraft
1980-6-12
279
Lassen
Near Skedaddle Creek on Wendel Hwy.
1238
Comment
NY758642
Chamaebatiaria millefolium
G. Schoolcraft
1981-7-29
554
Lassen
On south slope of McDonald Peak
2134
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
UC1542162
Chamaesaracha nana
Paul Covel
1986-6-6
Lassen
e of Chester (Lake Almanor dike); Lake Almanor
Comment
CHSC113085
Chamaesyce serpillifolia subsp. serpillifolia
Lowell Ahart; John Dittes
2013-7-22
18857
Lassen
Drainage filled with dirt from construction of a pond, about 30 yards south of the man made pond, about 120 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
CHSC65310
Chamaesyce serpillifolia subsp. serpillifolia
Vernon H. Oswald; Lowell Ahart
1995-8-14
7178
Lassen
Modoc Plateau. Hwy. 395 at the N end of a Mud Flat, 3.4 mi N of Smoke Creek Ranch Rd., N of Susanville.
1348
Comment
JEPS121298
Chamaesyce serpillifolia subsp. serpillifolia
Lowell Ahart
2013-7-22
18847
Lassen
W margin of duck field, about 30 yards S of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley.
Comment
CAS-BOT-BC69434
Cheilanthes feei
B. C. Cain
1923-8-24
90
Lassen
1 mi. below Drakesbad, Mt. Lassen Nat. Park.
1645
Comment
CHSC76275
Chenopodium album
Lowell Ahart; Vernon H. Oswald
1999-9-13
8222
Lassen
On the north side of Mapes Road, about 1/2 mile east of Lambert Lane, about 3 1/2 miles (air) southeast of Standish.
1210
Comment
CHSC105236
Chenopodium berlandieri
Lowell Ahart; John Dittes
2010-7-31
17021
Lassen
About 40 yards west 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
UC1191330
Chenopodium chenopodioides
Malcolm A. Nobs and S. Galen Smith
1949-7-22
1071
Lassen
Eagle Lake; ne shore
Comment
NY652205
Chenopodium leptophyllum
B. Corbin
2002-10-2
1114
Lassen
East of Highway 139, southeast of Eagle Lake
1731.3
Comment
CHSC66862
Chenopodium rubrum var. humile
Vernon H. Oswald; Lowell Ahart
1996-9-10
8279
Lassen
Mountain Meadows Reservoir SW of Westwood. On the embankment of the railroad at the northwest edge of the reservoir.
1539
Comment
CHSC45516
Chimaphila menziesii
Lowell Ahart; John Thomas Howell
1974-7-9
538
Lassen
On the south side of Eagle Lake Road, near the south edge of Eagle Lake.
1584
Comment
CHSC6235
Chimaphila menziesii
P. Balch
1955-7-22
Lassen
Eagle Lake. Between Eagle Lake and Pittville road.
1676
Comment
UC1557992
Chimaphila menziesii
Barbara Ertter
1988-7-25
7872
Lassen
ca. 10 airmiles due s. Susanville (ridge of Diamond Mts., ca. 1.5 mi. e. of Diamond Peak); Diamond Mts.
2255
Comment
CDA36350
Chrysothamnus nauseosus
B. Villegas
2011-8-25
Lassen
Highway 395 just above Doyle.
0
Comment
CHSC42146
Chrysothamnus viscidiflorus subsp. viscidiflorus
C. E. Laver
1985-8-14
Lassen
Ca. 8.5 mi se of Madeline and 9 mi ne of Termo. Along roadsides.
2194
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
JEPS94839
Chrysothamnus viscidiflorus subsp. viscidiflorus
Vernon H. Oswald and Lowell Ahart
1998-9-8
9587
Lassen
Kramer Road 3.1 mi s of Lookout; Kramer Road
1280
Comment
OBI5967
Chrysothamnus viscidiflorus subsp. viscidiflorus
Carl B. Wolf
1931-9-4
2396
Lassen
Big Valley, 2.6 mi from Bieber on the road to Alturas
1268
Comment
SEINET7450943
Chrysothamnus viscidiflorus subsp. viscidiflorus
M. J. Williams
1974-7-29
1974 -L-56
Lassen
2 mi. west of Hallelujah Junction, south of Highway 70
1494
Comment
SEINET7451023
Chrysothamnus viscidiflorus subsp. viscidiflorus
G. Schoolcraft
1994-9-13
2430
Lassen
Just above gate along road to Fredonyer Peak lookout
2256
Comment
UC773960
Chrysothamnus viscidiflorus subsp. viscidiflorus
L. R. Short and Wm. Gansberg
1936-8-13
S- 494
Lassen
Burgess Spring Experiment Range
1770
Comment
UC921129
Chrysothamnus viscidiflorus subsp. viscidiflorus
Vesta Holt
1945-8-11
Lassen
Eagle Lake
Comment
CAS-BOT-BC162756
Chylismia claviformis subsp. cruciformis
P. Monnet
1913-7-1
816
Lassen
Hot Springs Peak
Comment
CHSC5034
Cichorium intybus
L. B. Barlow
1967-7-6
108
Lassen
2 mi. west Murrer's Ranch turn off, 14.9 mi. north of Susanville, Calif., Highway 139.
1463
Comment
CDA38210
Cicuta douglasii
T. C. Fuller
1965-8-26
14041
Lassen
North side of old highway to Johnstonville, 5 miles east of Susanville.
0
Comment
CAS-BOT-BC184828
Cinna latifolia
Clare B. Hardham
1971-8-22
18408
Lassen
Diamond Mountain.
2133
Comment
CAS-BOT-BC184829
Cinna latifolia
John Thomas Howell; Gordon H. True
1973-8-1
50246
Lassen
Sierra Nevada. Gold Run Creek road south of Susanville, Diamond Range.
1950
Comment
UC1037245
Cirsium andersonii
Leo Whitney
1933-8-8
1994
Lassen
near Poison lake, ca 23 m w (of Eagle Lake) Eagle Lake; Poison Lake
1828
Comment
UCR67462
Cirsium arvense
George K. Helmkamp
1990-9-23
A- 01
Lassen
Northern Sierra Nevada Mountains, 3 mi east of Susanville, along State Road 36
1345
Comment
CAS-BOT-BC277918
Cirsium canescens
T. C. Fuller
1966-7-22
14981
Lassen
E. of rd. at e. base of Dry Valley Ridge, Madelaine [Madeline] Plains, 3 mi. n. of paved road, 10 mi. w. of Termo
Comment
CDA1125
Cirsium canescens
T. C. Fuller
1962-8-28
9479
Lassen
0.25 mi n. of Termo, Madelaine Plains; roadside, Hwy 395 to Madelaine.
0
Comment
CDA1167
Cirsium cymosum
T. C. Fuller
1959-7-7
2763
Lassen
Hwy 395; 1 mile north of Ravendale.
0
Comment
CAS-BOT-BC278001
Cirsium cymosum
John Thomas Howell
1934-6-10
11908
Lassen
Madeline Plains near Termo
Comment
CAS-BOT-BC278002
Cirsium cymosum
Peter H. Raven; Otto T. Solbrig
1958-6-17
13279
Lassen
Along United States Highway 395, 13.1 miles south of Ravendale
Comment
RSA0070595
Cirsium cymosum
Michael A. Vincent
1999-6-9
8575
Lassen
Bureau of Land Management land, Madeline Plains. Southwest of US Rt. 395, southeast of CR 515 (Termo Road), S of BLM road 1614, and southwest of Termo. Along jeep road to Schott Canyon.
Comment
CAS-BOT-BC280421
Cirsium ochrocentrum
T. C. Fuller
1980-8-5
20311
Lassen
East shore of Dodge Reservoir, 28 km. (17.5 mi.) northeast of Ravendale
Comment
CAS-BOT-BC280422
Cirsium ochrocentrum
Lee Wheeler
1950-10-1
s.n.
Lassen
Clarence Hoffman Ranch
Comment
CAS-BOT-BC280438
Cirsium ochrocentrum
T. C. Fuller
1966-7-22
14980
Lassen
E. of rd. at the e. base of Dry Valley Ridge, Madelaine [Madeline] Plains, 3 mi. n. of paved road, 10 mi. w. of Termo
Comment
CAS-BOT-BC280439
Cirsium ochrocentrum
T. C. Fuller
1966-7-22
14982
Lassen
E. of rd. at the e. base of Dry Valley Ridge, Madelaine [Madeline] Plains, 3 mi. n. of paved road, 10 mi. w. of Termo
Comment
CDA1561
Cirsium scariosum var. americanum
T. C. Fuller
1959-7-6
2979 -B
Lassen
Hwy. 36, about 1 mi. north of Westwood. (Probably in Sec. 4 or Sec. 5)
0
Comment
CAS-BOT-BC439003
Cistanthe monosperma
Milo S. Baker
1894-7-12
s.n.
Lassen
Pine Creek
Comment
CAS-BOT-BC172038
Clarkia gracilis subsp. gracilis
Louella Bass
1973-5-29
EV 79
Lassen
Elysian Valley, Sierra Nevada
1325
Comment
CHSC66393
Clarkia gracilis subsp. gracilis
Vernon H. Oswald; Lowell Ahart
1996-6-17
7792
Lassen
Modoc Plateau. Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville. Just SW of the parking area at Devils Corral Trailhead.
1420
Comment
JEPS108589
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
CAS-BOT-BC163166
Clarkia lassenensis
G. Schoolcraft
1993-6-29
2308
Lassen
Ash Valley RNA between Adin & Madeline
1554
Comment
CAS-BOT-BC172562
Clarkia purpurea subsp. purpurea
John Thomas Howell
1974-7-10
50550
Lassen
Elysian Valley, Sierra Nevada
1325
Comment
CAS-BOT-BC163420
Clarkia purpurea subsp. quadrivulnera
Louella Bass
1978-7-11
78 -12
Lassen
Elysian Valley
1325
Comment
CAS-BOT-BC164864
Clarkia rhomboidea
A. M. Vollmer; L. Beane
1953-7-1
35
Lassen
Along Halls Flat road, beginning 6 miles west of Susanville to McArthur
1554
Comment
CAS-BOT-BC164865
Clarkia rhomboidea
Bill Wilson
1967-7-1
8
Lassen
On Rd. # 5.00, 2.5 mi. S of Eagle Lake Biological Station. 8 mi. N of Susanville
1645
Comment
CAS-BOT-BC164867
Clarkia rhomboidea
Louella Bass
1978-6-10
78 -1
Lassen
Elysian Valley
1325
Comment
JEPS43672
Clarkia rhomboidea
Jos. Grinnell
1928-6-16
Lassen
Eagle Lake
1584
Comment
UC1587045
Clarkia rhomboidea
G. Schoolcraft
1991-7-30
2194
Lassen
e side Widow Mountain
1889
Comment
SBBG12321
Claytonia rubra subsp. rubra
A. I. Richardson
1961-5-30
6
Lassen
rd S of Eagle Lake
1402
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
CHSC7714
Cleome platycarpa
Beverly J. Wise
1969-5-3
4
Lassen
4.7 mi east of junction of Hwy 395 on las. Co. Rd. 338 (Smoke Creek Rd.)
1554
Comment
JEPS79145
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
UC1567389
Cleome platycarpa
G. Schoolcraft
1989-5-31
1891
Lassen
e end Skedaddle Mtns. (near stateline)
1493
Comment Read comments Aug 12 2008
NY222741
Cleome platycarpa
D. W. McNeal
1978-5-30
2123
Lassen
Along Hwy. #395, 3.4 mi. N of the jct of Co. Hwy. #320 (Wendel Rd.) at the Nobel Emigrant Trail Historical Marker.
Comment
NY242421
Cleomella parviflora
A. Tiehm
1980-5-29
5748
Lassen
North end of Honey Lake Valley, just north of Hot Springs 1.1 air miles NNW of Wendel.
1231.4
Comment
CDA25308
Cleomella plocasperma
T. C. Fuller
1980-8-6
20324
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
JEPS120877
Collinsia parviflora
Lowell Ahart, John Dittes, Todd Sloat
2013-6-8
18737
Lassen
About 30 yards N of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley.
Comment
JEPS95129
Collinsia parviflora
Vernon H. Oswald and Lowell Ahart
1997-5-27
8500
Lassen
North of Susanville (on Forest Rte. 38N04 (between Hwy. 139 near Willow Creek Guard Station & Coyote Flat), 0.1 mi. e. of Hwy. 139, on flood plain of small creek paralleling rd.)
1546
Comment
RSA60368
Collinsia parviflora
E. K. Balls
1950-5-9
15951
Lassen
6 miles south of Milford, Hwy 395.
1296
Comment
UC1032607
Collinsia torreyi var. torreyi
A. Simontacchi
1940-6-15
864
Lassen
1.6 mi ssw of Blacks Mountain (Lassen National Forest); Lassen National Forest
1920
Comment
SEINET12326975
Collomia grandiflora
Unknown
1978-1
57
Lassen
Lower Dry Lakes, E of Eagle L
1646
Comment
JEPS17747
Collomia linearis
Rimo Bacigalupi with G. T. Robbins
1955-7-20
5407
Lassen
4.4 mi s Patterson Ranger Sta.; southern end of Warner Mountains, Modoc National Forest, Lon
2057
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
CHSC6200
Collomia tinctoria
1946-6-13
Lassen
Eagle Lake.
1584
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
UC773938
Collomia tinctoria
L. R. Short and J. Warren
1936-6-10
S- 382
Lassen
Burgess Spring Experimental Range Lassen <National> Forest (timbered slopes)
1789
Comment Read comments Jun 17 2011
HSC95148
Comarum palustre
Gordon Leppig
1998-7-12
934
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
JEPS121290
Conium maculatum
Lowell Ahart, John Dittes
2013-7-23
18901
Lassen
W side of the road levee, about 80 yards W of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley.
Comment
POM107535
Corallorhiza striata
Marcus E. Jones
1897-6-28
s.n.
Lassen
Diamond Mountain; Susanville; Perkins Ranch.
1829
Comment
JEPS11645
Cordylanthus ramosus
R. F. Hoover
1940-10-1
4655
Lassen
Jonesville
Comment
UC581214
Crepis acuminata
E. B. Babcock and G. L. Stebbins Jr.
1936-6-7
1736
Lassen
on mountain above Red Rock (e-facing slope of gully)
1420
Comment
CHSC27597
Crepis bakeri
N. E. Heiken
1978-6-28
58
Lassen
E of Eagle L., at Lower Dry L.
1645
Comment
OBI75880
Crepis bakeri
Anthony Baniaga
2011-6-30
404
Lassen
Lassen Natl Forest. E of 29N03. Fredonyer Pass quad. T29N R10E sec 24 NW of NE
1470
Comment
CAS-BOT-BC291549
Crepis intermedia
G. L. Stebbins; J. A. Jenkins
1937-7-8
2222
Lassen
Six miles south of Ravensdale
1676
Comment
POM230908
Crepis intermedia
G. Ledyard Stebbins, J. A. Jenkins
1937-7-10
2296
Lassen
Crest of range head of Stony Ridge, west of Milford
1951
Comment
CAS-BOT-BC291548
Crepis intermedia
G. L. Stebbins; J. A. Jenkins
1937-7-7
2203
Lassen
Susanville just west of the town on Inspiratin Point
Comment
POM17695
Crepis monticola
Marcus E. Jones
1897-6-26
s.n.
Lassen
Susanville, Perkin's Ranch.
1463
Comment
UC540880
Crepis occidentalis
David D. Keck and J. Clausen
1935-6-25
3759
Lassen
Susanville; just w of town
1340
Comment
UC581195
Crepis occidentalis
E. B. Babcock and G. L. Stebbins Jr.
1936-6-7
1749
Lassen
nw facing slope of ridge e Red Rock
1600
Comment
UC581290
Crepis occidentalis
G. L. Stebbins Jr. and J. A. Jenkins
1937-7-10
2302
Lassen
w Milford (crest or range head of ridge); Stony Ridge
1930
Comment
UC581316
Crepis occidentalis subsp. costata
G. L. Stebbins Jr. and J. A. Jenkins
1937-7-8
2221
Lassen
6 mi s Ravensdale
1676
Comment
CAS-BOT-BC290752
Crepis occidentalis subsp. occidentalis
John Thomas Howell
1934-6-10
11872
Lassen
Janesville
Comment
UC895333
Crepis occidentalis subsp. occidentalis
A. A. Heller
1938-6-23
15201
Lassen
valley e Fredonyer Pass (on State Hwy 36)
Comment
CAS-BOT-BC290751
Crepis occidentalis subsp. occidentalis
David D. Keck; J. Clausen
1935-6-24
3752
Lassen
2 miles south of Ravensdale
1463
Comment
JEPS107791
Crepis pleurocarpa
Lowell Ahart, John Dittes
2005-6-2
11934
Lassen
Long Valley, along the poor dirt road, about 1/4 mile west of the Anderson Ranch home, about 4 3/4 miles (air) north of the interesection of Scott Road and Highway 70, 6.5 miles (air) northwest of Hallelujah Junction
1498
Comment
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
CAS-BOT-BC299713
Crocidium
Louella Bass
1973-4-22
23
Lassen
Elysian Valley, Sierra Nevada
1325
Comment
CHSC5053
Cryptantha
L. B. Barlow
1967-6-23
15
Lassen
1/4 mi. north Eagle Lake Biological Station, east central side of Eagle Lake.
1554
Comment
NY1112275
Cryptantha ambigua
B. J. Ertter
1987-6-16
7199
Lassen
Skeedaddle Mountains on northeast side of Honey Lake; saddle on east side of Hot Springs Peak
2195
Comment
SDSU20522
Cryptantha ambigua
Nuri Benet-Pierce, John P. Pierce
2012-7-14
522
Lassen
Between Poison Lake and Patterson Flats, in clearing by the rd, at the start to 35N08.
1724
Comment
CHSC106681
Cryptantha circumscissa
B. Ignacio
2008-5-3
Lassen
Fort Sage Mountains.
1520
Comment
UCD54568
Cryptantha circumscissa
Ellen Dean; Dawn Cunningham
2005-10-25
2751
Lassen
East of the town of Susanville. Property N of California Correctional Facility.
1248
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
POM252792
Cryptantha hendersonii
A. A. Heller
1938-6-23
15206
Lassen
Lassen County the ridge E of Mapes on Hwy 395.
1372
Comment
RSA0065500
Cryptantha hendersonii
Marion P. Harthill
1972-6-17
817
Lassen
Ravendale.
1524
Comment
JEPS94832
Cryptantha pterocarya
Vernon H. Oswald and Lowell Ahart
1998-5-22
9112
Lassen
5 mi nne of Doyle (Road to ORV parking area in Fort Sage Mountains 0;.6 mi e of Fort Sage Road); Fort Sage Mountains
1402
Comment
UC526165
Cryptantha pterocarya
John Thomas Howell
1934-6-10
11851
Lassen
4 mi s Omira
Comment
CHSC71075
Cryptantha pterocarya var. pterocarya
Vernon H. Oswald; Lowell Ahart
1998-5-22
9112
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
CHSC106073
Cryptantha torreyana
Lowell Ahart; John Dittes
2010-7-31
17028
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
CHSC27925
Cryptantha torreyana
M. S. Taylor
1974-7-10
280
Lassen
In meadow, ca. 1/2 mi e of Gallatin Beach, ca. 1/2 mi s of Eagle Lake, ca. 12 mi nw of Susanville.
1524
Comment
SEINET10497287
Cryptantha torreyana
Mary Susan Taylor
1974-1
Taylor 280
Lassen
Vicinity of Eagle Lake, ca. 13 mi NW of Susanville.
Comment
HSC68930
Cryptantha watsonii
Gary Schoolcraft
1980-5-7
219
Lassen
On Honey Lake Island
1220
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
UC1562813
Cryptantha watsonii
Barbara Ertter with Gary Schoolcraft
1987-6-16
7187
Lassen
ne side Honey Lake (w of Hot Springs VABM); Skeedaddle Mountains
2133
Comment
UCR243134
Cuscuta approximata
Jerry Schmierer
1986-9-1
s.n.
Lassen
Don Blickenstaff Ranch
1220
Comment
CAS-BOT-BC39681
Cusickiella douglasii
G. Schoolcraft
1988-6-7
1809
Lassen
About 14 miles northeast of Ravendale.
1737
Comment
UC193142
Cycladenia humilis var. humilis
J. G. Lemmon
Lassen
near Shasta (Black Cone); ; Black Cone, near Shasta
Comment
CHSC43469
Cynoglossum occidentale
Lowell Ahart; John Thomas Howell
1974-7-9
515
Lassen
Along the edge of Eagle Lake Road, about 5 miles north-west of Susanville.
1584
Comment
UC1567429
Cyperus squarrosus
G. Schoolcraft
1989-7-24
1994
Lassen
along n. shore Said Valley Reservoir
1630
Comment
SEINET7725892
Cypripedium californicum
Unknown
Lassen
Mt. Dyer
1829
Comment
CHSC27716
Cystopteris fragilis
Robert A. Schlising
1978-7-9
3315
Lassen
S of Eagle Lake, rocks on E side of Mahogany L.
2060
Comment
SEINET230899
Dalea ornata
Arnold Tiehm, Raymond Evans: James Young
1984-6-7
8592
Lassen
Flats on the Northwest side of Shaffer Mountain, 7.5 air miles North-northwest of Litchfield.
1372
Comment
JEPS127244
Damasonium californicum
Lowell Ahart, John Dittes
2016-7-13
21138
Lassen
50 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
UCD60868
Danthonia californica var. americana
Mrs. Austin
1894-6-1
295
Lassen
Lassen Creek.
Comment Read comments Jul 11 2013
RSA299133
Danthonia unispicata
J. T. Howell
1977-6-22
52406
Lassen
west of Susanville near the confluence of Willard Creek and Susan River
1433
Comment
UCD61329
Danthonia unispicata
Beecher Crampton
1960-6-18
5721
Lassen
Southern Warner Mtns., vicinity of Blue Lake Ranch.
1981
Comment
UC1924204
Deinandra lobbii
Debra Valov
2005-8-20
2005220
Lassen
Bieber; off County A2 c. 8 km east of Hwy 299
1271
Comment
JEPS79214
Delphinium
L. R. Heckard with R. C. Bacigalupi
1980-6-12
5254
Lassen
ne Westwood (near golf course)
1554
Comment
CHSC7730
Delphinium andersonii
Beverley J. Wise
1969-5-18
83
Lassen
7.7 mi. West of Susanville on Las. Co. Rd. 215 on the south side of the road.
1341
Comment
JEPS15484
Delphinium andersonii
Joseph and Hilda W. Grinnell
1938-6-13
1098 a
Lassen
on a sage flat near Ravensdale; near Ravensdale
1554
Comment
POM253334
Delphinium andersonii
A. A. Heller
1938-6-23
15217
Lassen
Along Hwy 395, between Termo and Madeline.
1524
Comment
UC579715
Delphinium andersonii
David D. Keck and J. Clausen
1935-6-24
3748
Lassen
2 mi s Ravendale
1464
Comment
CHSC7728
Delphinium nudicaule
Beverley J. Wise
1969-5-9
84
Lassen
11.3 mi. west of Susanville on Forest Serv. 8246 off Hwy 36.
1524
Comment
CHSC4927
Delphinium nuttallianum
L. G. Bennett
1967-6-23
15
Lassen
Immediate vicinity of Eagle Lake Biological Station, Eagle Lake.
1554
Comment
CHSC7732
Delphinium nuttallianum
Beverley J. Wise
1969-5-9
85
Lassen
11.7 mi. west of Susanville on Forest Serv. 8246 off Hwy. 36.
1524
Comment
HSC27052
Delphinium nuttallianum
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19165
Lassen
3 mi. N of Westwood
Comment
UC499813
Delphinium nuttallianum
Elmer I. Applegate
1929-6-21
5780
Lassen
between Drakesbad and Kelley's Camp; Warner Valley
Comment
CAS-BOT-BC116043
Delphinium nuttallianum
Mrs. H. C. Cantelow
1949-6-11
8
Lassen
East slope of Fredonyer Pass.
Comment
CAS-BOT-BC194258
Deschampsia cespitosa subsp. cespitosa
John Thomas Howell
1943-7-10
49769
Lassen
Near Westwood - Sierra Nevada
1554
Comment
CAS-BOT-BC194259
Deschampsia cespitosa subsp. cespitosa
Ray Hanson
1954-8-23
s.n.
Lassen
Near Jackey Lake
2112
Comment
CAS-BOT-BC192740
Deschampsia danthonioides
A. A. Beetle
1941-6-28
2799
Lassen
10 miles west of Chester
Comment
JEPS107688
Deschampsia danthonioides
Lowell Ahart, John Dittes
2005-6-1
11913
Lassen
On the north side of Scott Road, east side of the railroad underpass, Long Valley, about 4 3/4 miles (air) north of the intersection of Scott Road and Highway 70, 6.2 miles (air) northwest of Hallelujah Junction
1459
Comment
JEPS88325
Deschampsia danthonioides
Vernon H. Oswald and Lowell Ahart
1996-6-24
7840
Lassen
2.5 mi. s. of Eagle Lake (ca. 0.5 mi. e. of Eagle Lake Rd. (A1), Papoose Meadows, w. side of meadow just s. of cabins); Modoc Plateau, Papoose Meadows
1633
Comment
POM114878
Deschampsia danthonioides
Marcus E. Jones
1897-6-30
s.n.
Lassen
Eagle Lake, 27 miles from Susanville.
1524
Comment
UCD61878
Deschampsia danthonioides
A. A. Beetle
1941-6-28
2799
Lassen
10 miles W of Chester.
1524
Comment
UCD62833
Deschampsia danthonioides
Malcolm A. Nobs; S. Galen Smith
1949-7-21
1059
Lassen
4 miles N of Madeline.
Comment
RSA268159
Deschampsia danthonioides
J. R. Reeder, C. G. Reeder
1972-6-1
5630
Lassen
2 miles S. of Nubieber.
1037
Comment
SEINET10524169
Deschampsia danthonioides
R. Ondricek
1978-7-15
Ondricek 102
Lassen
In dried mud where the spring arises above the dam at Murrers Upper Meadow. T32N, R11E, e edge of Sec. 26. in the Fredonyer Peak Quadrangle, 15'.
1548
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
CDA42999
Descurainia nelsonii
L. Ahart, John Dittes
2008-6-19
14891
Lassen
West bank of Willow Creek, about 5 yards northeast of Highway 139, near Forest Road 36N02, about 19.6 miles east-southeast of Bieber.
Comment
JEPS114360
Descurainia nelsonii
Lowell Ahart, John Dittes
2008-6-19
14891
Lassen
Bottom and sides of a small drainage, west bank of Willow Creek, about 5 yards northeast of Highway 139, near Forest Road 36N02, about 19.6 miles east-southeast of Bieber
1578
Comment
SEINET10480969
Descurainia pinnata
Jeffrey Huber
1971-6-2
Huber 134
Lassen
6 mi n of halleluja jct on u.s. Hwy 395, in artemesia tridentata, pinyon pine, jeffrey pine along high ridge and in sandy wash.
1402
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
CHSC64773
Descurainia sophia
Vernon H. Oswald
1995-6-7
6840
Lassen
Modoc Plateau. Ridge on the n side of Wendel Rd. (Lassen 320) at milepost 11.0, 5.6 mi e of Wendel, ne of Susanville. Near the road.
1231
Comment
CHSC7705
Descurainia sophia
Beverley J. Wise
1969-5-23
39
Lassen
35 mi. S.E. of Susanville on Las. Co. Rd. 320.
1249
Comment
JEPS107794
Descurainia sophia
Lowell Ahart
2005-6-2
11925 A
Lassen
near the Anderson Ranch home, Long Valley, about 4 3/4 air mi N of intersection of Scott Road and Hwy 70, 6.2 air mi NW of Hallelujah Junction
1459
Comment
UC1924260
Descurainia sophia
Debra Valov
2004-5-31
2004227
Lassen
Bieber; off County A2 c. 8 km east of Hwy 299
1274
Comment
CAS-BOT-BC43484
Descurainia sophia
Ira L. Wiggins; Dorothy B. Wiggins
1961-6-11
16334
Lassen
13.5 miles east of Susanville.
Comment
JEPS25534
Dichelostemma multiflorum
Rimo Bacigalupi with Lincoln Constance
1959-6-16
7148
Lassen
3.7 mi s Susanville to Adin road junction with road to Bieber (along county road from Susanville to Adin)
1615
Comment
CAS-BOT-BC500986
Dichelostemma multiflorum
H. D. Ripley; R. C. Barneby
1943-6-14
5750
Lassen
West of Susanville
1310
Comment
HSC63945
Dieteria canescens var. canescens
Teresa Prendusi
1980-7-1
Lassen
Little Antelope Valley
1677
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
UC1609238
Dieteria canescens var. shastensis
Vernon H. Oswald and Lowell Ahart
1993-6-28
5596
Lassen
Harvey Valley Rd. (33N02) 2.0 mi n Hwy 44 (between Grays Valley and Harvey Valley, e of Poison Lake)
1734
Comment
UC86846
Dieteria canescens var. shastensis
T. S. Brandegee
Lassen
Comment
CAS-BOT-BC153673
Diplacus mephiticus
Clare B. Hardham
s.n.
Lassen
Gold Run Creek south of Susanville
Comment
CAS-BOT-BC153681
Diplacus mephiticus
L. G. Bennett
1967-6-23
21
Lassen
Eagle Lake Biological Station Grounds
1554
Comment
CAS-BOT-BC153682
Diplacus mephiticus
Margaret Williams; Steven Williams
1974-7-26
74 - L - 35
Lassen
Near Hallelujah Junction, west of Hwy 395 and south of Hwy 70
1493
Comment
CHSC26186
Diplacus mephiticus
J. P. Kroessig
1977-5-23
30
Lassen
Large scattered population at Eagle Lake Biological Station, ca 37 km nnw of Susanville.
1570
Comment
CHSC5907
Diplacus mephiticus
R. Gein
1946-6-12
Lassen
Pine Creek bridge.
1584
Comment
SEINET13702844
Diplacus mephiticus
G. Schoolcraft
1980-5-7
225 B
Lassen
Honey Lake Island.
1219
Comment
SEINET13703699
Diplacus mephiticus
A. A. Heller, P. B. Kennedy
1907-7-1
8673
Lassen
Near Old Chat.
Comment
CAS-BOT-BC154007
Diplacus torreyi
A. M. Vollmer; L. Beane
1953-7-1
48
Lassen
Along Halls Flat road, beginning 6 miles west of Susanville to McArthur
1554
Comment
CHSC67075
Distichlis spicata
Willis Ball
1969-6-19
11
Lassen
Found in dry Eagle Lake basin about 1/2 mile N.E. of E.L.B.S.
1554
Comment
CHSC91302
Distichlis spicata
Lowell Ahart; John Dittes
2005-6-2
11922
Lassen
Along the road, near the Anderson Ranch home, Long Valley, about 4 3/4 miles (air) north of the intersection of Scott Road and Highway 70, 6.2 miles (air) northwest of Hallelujah Junction.
1459
Comment
UC1137728
Dodecatheon conjugens
L. R. Short
1936-4-28
S- 331
Lassen
Burgess Spr. Exp. Range Lassen Forest, Burgess Spr. Exp. Range
1767
Comment
CHSC112464
Downingia bacigalupii
Lowell Ahart; John Dittes, Todd Sloat
2013-6-8
18738
Lassen
About 30 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
JEPS14618
Downingia bacigalupii
Helen K. Sharsmith
1955-6-27
4512
Lassen
near Fall River Mills (forest adjacent to State Highway 299); Lassen National Forest
1219
Comment
RSA768782
Downingia bacigalupii
L. Ahart, John Dittes
2010-7-31
17013
Lassen
About 2300 feet north of where the road crosses Hunsinger Draw, 1.9 air miles northwest of Moll Reservoir, 2.8 air miles west of Ash Valley, 8.4 air miles southeast of Adin.
1511
Comment
UC1368461
Downingia bacigalupii
R. K. Gierisch
1969-7-18
3549
Lassen
Madeline Plains, near Modoc Forest/Expt. Area Madeline Plains
1615
Comment
UC1523717
Downingia bacigalupii
Gregg Riegel
1981-6-17
1150
Lassen
1280
Comment
SBBG126109
Downingia bacigalupii
L. Ahart, J. Dittes
2010-7-31
17013
Lassen
ca 2300 feet N of where rd crosses Hunsinger Draw, 1.9 mi NW of Moll Reservoir, 2.8 mi W of Ash Valley, 8.4 mi SE of Adin
1510
Comment
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
CHSC60887
Downingia bicornuta var. bicornuta
Vernon H. Oswald; Lowell Ahart
1993-7-8
5649
Lassen
Pittville Rd. (Lassen 111, 36N01) 1.9 mi N of Hwy. 44, on the SE edge of Poison Lake.
1709
Comment
JEPS108502
Downingia bicornuta var. bicornuta
Lisa Schultheis
1995-6-27
221 -95
Lassen
E edge of Poison Lake. N on Pittville Rd. off of Rt. 44. E of Shasta/Lassen county line.
Comment
JEPS108509
Downingia bicornuta var. bicornuta
Lisa Schultheis
1995-6-27
223 -95
Lassen
Large vernal pool W of Champs Flat (W of Eagle Lake). Corner of 33N56Y and 33N06.
Comment
JEPS108510
Downingia bicornuta var. bicornuta
Lisa Schultheis
1995-6-28
232 -95
Lassen
Between Beiber and Adin; SE corner of Rt. 299 and Finley Rd.
Comment
JEPS19680
Downingia insignis
Rimo Bacigalupi with S. Galen Smith and Geo. Bacigalupi Jr.
1957-6-28
6000
Lassen
3.1 mi s Madeline (ditches along U.S. Highway 395); Madeline Plains
1615
Comment
SJSU3191
Downingia insignis
R. L. Fisher
1958-6-16
Lassen
6 mi S of Madeline, Madeline Plains
1615
Comment
RSA292991
Downingia insignis
Stanton A. Cook
1958-7-19
825
Lassen
7.4 miles N of Ravendale on route 395.
Comment
CAS-BOT-BC266474
Downingia laeta
Gordon H. True
1936-6-21
518
Lassen
Honey Lake Valley
Comment
UC1192038
Downingia laeta
Malcolm A. Nobs and S. Galen Smith
1949-7-20
1047
Lassen
Bieber, along Highway 299 Bieber
Comment
UC1951080
Draba verna
Debra Valov
2009-4-24
2009011
Lassen
Bieber; property on south side of County A2 c. 5.4 mi east of Hwy 299
Comment
JEPS118282
Draba verna var. aestivalis
Lowell Ahart, John Dittes
2011-6-20
17489
Lassen
About 3 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
CAS-BOT-BC159715
Drymocallis glandulosa
Louella Bass
1977-6-26
77 -5
Lassen
Elysian Valley, south of Superdam.
1325
Comment
HSC4391
Dysphania pumilio
M. T. Milligan
1964-8-6
198
Lassen
Eagle Lake, near shore at Eagle Lake General Store.
1677
Comment
JEPS95911
Elaeagnus angustifolia
Lowell Ahart
1999-9-13
8223
Lassen
on the north side of Mapes Road; about 1/2 mile east of Lambert Lane; about 3 1/2 miles (air) southeast of Standish
1210
Comment
JEPS121283
Elatine
Lowell Ahart, John Dittes
2013-7-22
18882
Lassen
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
JEPS123975
Elatine californica
Lowell Ahart, John Dittes
2015-7-13
20299
Lassen
Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
Comment
RSA252429
Elatine californica
R. F. Thorne, C. W. Tilforth, K. Thorne
1969-9-5
39136
Lassen
Said Valley Reservoir.
Comment
CAS-BOT-BC113591
Eleocharis acicularis
John Thomas Howell
1959-9-23
34892
Lassen
Juniper Lake camp grounds, Lassen Park
2057
Comment
UC1776679
Eleocharis macrostachya
G. Schoolcraft
1995-5-22
2485
Lassen
East of Skedaddle Ranch
1554
Comment
CAS-BOT-BC112847
Eleocharis macrostachya
Hans Leschke
1959-8-2
1588
Lassen
Manzanita Lake
1781
Comment
UCD55302
Eleocharis parvula
Ellen Dean; Gary Schoolcraft
2006-5-16
3131
Lassen
East of town of Susanville, along County Road A27 (Center Road). Private land north of California Correctional Facility owned by Virginia Johnston, to be purchased by state for expansion of alfalfa fields.
1251
Comment Read comments Oct 5 2010
UC1142965
Eleocharis quinqueflora
A. L. Hormay
1941-6-25
19
Lassen
Burgess Spring Lassen National Forest
1676
Comment
UCD62904
Elymus X saundersii
Lester J. Berry
1960-7-8
Lassen
Burgess Springs Road, floor of Harvey Valley, ca. 7 miles S of Black's Mtn. Exper. Station, USDA.
Comment
HSC5270
Elymus cinereus
M. T. Milligan
1964-8-6
197
Lassen
Eagle Lake, near shore at Eagle Lake General Store.
1677
Comment
JEPS123868
Elymus cinereus
Lowell Ahart, John Dittes
2015-7-14
20327
Lassen
About 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
Comment
CAS-BOT-BC227482
Elymus elymoides
John Thomas Howell; Gordon H. True
1973-8-1
50197
Lassen
Ca. 3 miles se. of Diamond Mt., summit of Diamond Range south of Susanville
2194
Comment
CAS-BOT-BC227488
Elymus elymoides
John Thomas Howell
1934-7-10
12533
Lassen
Between Harvey Valley and Patterson Flats
Comment
CAS-BOT-BC227489
Elymus elymoides
David D. Keck; J. Clausen
1935-6-24
3751
Lassen
2 mi. S. of Ravendale
1464
Comment
JEPS123452
Elymus elymoides
Wilson Collison, Jaileen Merced
2015-8-5
CA 320 -148
Lassen
Trap Mountain, Wing allotment. Highway 139 W (north) from Termo Grasshopper Road.
Comment
UC1024956
Elymus elymoides subsp. elymoides
Leo Whitney
1935-6-24
3305
Lassen
ca 13 mi w north end of Eagle Lake; Squaw Valley
Comment
JEPS126479
Elymus elymoides var. californicus
Jillian Pastick, Lillie Pennington, Andrea Stuemsky
2015-6-30
CA 350 -043
Lassen
Take 139 towards Antelope Grade and take a right after passing the fire station. Continue on dirt road for less than 0.5 miles.
Comment
CHSC112796
Elymus glaucus
Lowell Ahart; John Dittes
2013-7-23
18893
Lassen
About 30 feet northeast of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
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-BC206730
Elymus glaucus subsp. glaucus
Clare B. Hardham
1971-8-22
18401
Lassen
Aspen Swamp, Diamond Mountain
2133
Comment
CAS-BOT-BC234094
Elymus multisetus
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49447
Lassen
Elysian Valley west of Janesville, Sierra Nevada
1325
Comment
RSA795327
Elymus repens
L. Ahart, John Dittes
2010-7-31
17017
Lassen
On the south side of the road, about 20 yards east of the large culvert, where the road crosses Hunsinger Draw, 1.9 air miles northwest of Moll Reservoir, 2.8 air miles west of Ash Valley, 8.4 air miles southeast of Adin.
1516
Comment
UCR17282
Elymus spicatus
Frank C. Vasek
1975-7-11
750711- 32
Lassen
Modoc National Forest, Hayden Hill Road c. 0.75-1.0 mi SW of Calif. Hwy 139
1829
Comment
UC1037126
Elymus trachycaulus
Leo Whitney
3261 b
Lassen
Fruit Grower's Supply Co. Camp 10 Lassen National Forest (dry creek)
Comment
SEINET6657093
Elymus triticoides
Leo Whitney
1934-8-4
2128
Lassen
Sheepshead, ca. 10 miles northwest of north end of Eagle Lake, Lassen National Forest.; 0
1890
Comment
CDA2066
Elytrigia repens
H. S. Milton, P. Milton
Jul 1980
Lassen
Herman S. & Paul Milton Ranch, Riverside District, Hwy 395, 8 miles east of Susanville.
0
Comment
CAS-BOT-BC81879
Ephedra viridis
Doris Kildale Gillespie
1930-5-12
9347
Lassen
between Susanville and Leavitt Lake
Comment
CHSC111258
Ephedra viridis
L. P. Janeway; B. Castro
2012-7-3
10940 B
Lassen
Modoc Plateau. Near top of Shaffer Mountain, southeast-facing slope, steep and very rocky with lots of outcrops of hard dark volcanic rock.
2012
Comment
CHSC93239
Ephedra viridis
John Dittes; Scott Chamberlain
2004-6-28
1022
Lassen
Modoc Plateau; Long Valley; ca. 5.5 air-miles north by northeast of Hwy 70 at Beckwourth Pass, ca. 2.5 air-miles west of Hwy 395, ca. 1.3 air-miles east of Plumas County line; near meadow edge.
1496
Comment
SEINET10532271
Ephedra viridis
Mary Susan Taylor
1982-5-29
Taylor 4563
Lassen
T22N R17E se sec 23. Loyalton quad. NW corner of the jct of Scott Rd and Hwy 395, ca. 20 mi n of Reno; in Sagebrush Scrub. 4900 ft.
1493
Comment
SEINET11739305
Ephedra viridis
M. Sacks, Detzer
1977-1
13
Lassen
4 km S of Hwy 395
1386
Comment
SEINET6628957
Epilobium
A. W. Harvilik
1967-1
4
Lassen
jct. of 5.19 with road to Mutters Meadow
152
Comment
SEINET10738966
Epilobium angustifolium subsp. circumvagum
Andrew Townesmith, Karen M. Meyer
2007-7-20
Townesmith 838
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
CHSC29866
Epilobium brachycarpum
Robin L. Ondricek
1978-6-27
72
Lassen
.6 mi n of Five Corners along road to ELFS.
1706
Comment
SEINET12539614
Epilobium brachycarpum
C. G. Gulling
1905-1
s.n.
Lassen
Big Meadows.
Comment
NY999879
Epilobium brachycarpum
W. W. Eggleston
1910-9-3
6309
Lassen
Vicinity of Doyle Station
1240
Comment
CHSC6190
Epilobium ciliatum subsp. ciliatum
P. Balch
1955-7-24
Lassen
Gallatin's Beach, Eagle Lake.
1561
Comment
JEPS39248
Epilobium ciliatum subsp. ciliatum
Brown and Wieslander
1922-7-30
16
Lassen
Martin Sprs. Eagle Lake
Comment
NY1001463
Epilobium ciliatum var. ciliatum
G. Schoolcraft
1990-7-11
2108
Lassen
McKabe Spring north of Moon Lake
1669
Comment
RSA0105579
Epilobium densiflorum
Lowell Ahart, John Dittes
2013-7-22
18878
Lassen
40 yards south of the man made pond, about 110 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
CHSC59090
Epilobium glaberrimum subsp. glaberrimum
Vernon H. Oswald; Lowell Ahart
1992-8-25
5183
Lassen
Lassen Volcanic National Park. Grassy Creek at the S end of Snag Lake. Bottom of a cutbank of the creek where it enters the lake.
1853
Comment
UC303068
Epilobium glaberrimum subsp. glaberrimum
Pearl Safford
Lassen
Susanville [uncertain locality]
Comment
CHSC66251
Epilobium hallianum
Vernon H. Oswald; Lowell Ahart
1996-6-24
7849
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
JEPS88515
Epilobium hallianum
Vernon H. Oswald and Lowell Ahart
1996-6-24
7849
Lassen
2.5 mi. s. Eagle Lake (Papoose Meadows located ca. 0.5 mi. e. of Eagle Lake Rd. (A1), w. side of meadow just s. of the cabins, Modoc Plateau); Modoc Plateau, Papoose Meadows
1633
Comment
RSA123006
Epilobium hallianum
L. R. Short, J. Warren
1936-6-11
S- 429
Lassen
Burgess Spr. Exp. Range
1738
Comment
CHSC96725
Epilobium oregonense
Gordon Leppig; T. LaBanca, L. Arguello
1997-6-29
527
Lassen
Modoc National Forest, Blue Lake Ranch. Peatland in large meadow complex.
1970
Comment
SEINET3271523
Epilobium oregonense
Marcus E. Jones
1897-6-30
Lassen
4 mi below Eagle Lake
1524
Comment
GMDRC6955
Epilobium pallidum
J. M. Andre, T. La Doux, Senna & Elias Andre
2013-7-12
31430
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
SEINET194973
Epilobium pallidum
A. A. Heller
1938-7-28
15295
Lassen
Edge of swamp about mile east of Westwood
1524
Comment
HSC95345
Epilobium palustre
Gordon Leppig
1998-8-17
1049
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
CHSC12494
Equisetum arvense
Carol Weld
1969-6-26
46
Lassen
7.8 miles S. W. of Eagle Lake Field Station.
1584
Comment
CDA34254
Eragrostis pectinacea var. pectinacea
L. Ahart, J. Dittes
2010-8-31
17092
Lassen
On the west side of Walters Road, 4235 feet south of Modoc County Line, about 4.3 miles (air) south-southwest of Adin, and about 7.0 miles (air) northeast of Bieber, Big Valley.
Comment
UC1178959
Eriastrum signatum
Herbert L. Mason
1957-7-5
14714
Lassen
s Madeline; Madeline Plains
Comment
CAS-BOT-BC515169
Eriastrum signatum
John Thomas Howell
1934-6-10
11840
Lassen
Near Plumas Junction
Comment
CAS-BOT-BC515171
Eriastrum signatum
Lewis S. Rose
1934-7-25
34410
Lassen
Reno Jct.
1371
Comment
CAS-BOT-BC515172
Eriastrum signatum
Louella Bass
1982-6-20
s.n.
Lassen
At cemetery gate, McKeasick
Comment
NY1012897
Eriastrum sparsiflorum var. sparsiflorum
R. R. Halse
2004-6-21
6669
Lassen
At Junction of U.S. Highway 395 and State Road A 26 ca. 11 miles southeast of Milford
1274
Comment
JEPS69071
Eriastrum wilcoxii
W. L. Jepson
1918-8-2
7792
Lassen
Long Valley
1219
Comment Read comments Nov 7 2008
UC506538
Eriastrum wilcoxii
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3408
Lassen
Amedie Honey Lake Valley
Comment
UCD149881
Eriastrum wilcoxii
William Anderson
1963-6-26
s.n.
Lassen
Honey Lake.
Comment
CAS-BOT-BC286604
Ericameria bloomeri
R. K. Gierisch; D. H. Esplin
1969-8-27
3598
Lassen
Lassen National Forest
Comment
CAS-BOT-BC286605
Ericameria bloomeri
M. S. Taylor; B. Hammond
1982-8-27
5054
Lassen
Crystal Peak area, Diamond Mts, ca. 6 air mi sw of Doyle
2377
Comment
CAS-BOT-BC286607
Ericameria bloomeri
Gary Schoolcraft
1984-8-21
1367
Lassen
Eastern slopes of Fredonyer Mtn. 33-12-35
2072
Comment
SEINET195495
Ericameria bloomeri
G. Thomas Robbins
1945-10-7
2153
Lassen
Lassen National Forest ; Southeast slope of Harvey Mountain 2-3 miles northeast of Burgess Spring Harvey Valley
1829
Comment
CAS-BOT-BC298173
Ericameria nauseosa var. oreophila
C. B. Wolf
1931-9-5
2401
Lassen
0.75 mile E of Termo
1645
Comment
CAS-BOT-BC298181
Ericameria nauseosa var. oreophila
Carl B. Wolf
1931-9-4
2397
Lassen
Big Valley, 2.6 miles from Bieber on road to Alturas
1267
Comment
CAS-BOT-BC298182
Ericameria nauseosa var. oreophila
C. B. Wolf
1931-9-5
2401
Lassen
0.75 mile E of Termo
1645
Comment
CHSC65293
Ericameria nauseosa var. oreophila
Vernon H. Oswald; Lowell Ahart
1995-8-14
7181
Lassen
Modoc Plateau. Hwy. 395 9.1 mi N of Smoke Creek Ranch Rd., N of Susanville. Along this section of highway.
1359
Comment
JEPS21524
Ericameria nauseosa var. oreophila
W. L. Jepson
1918-8-4
7808
Lassen
Horse Lake
1554
Comment
OBI5746
Ericameria nauseosa var. oreophila
Carl B. Wolf
1931-9-5
2401
Lassen
3/4 mi E of Termo
1646
Comment
SJSU3012
Ericameria nauseosa var. oreophila
J. W. Tilden
1967-8-23
1771
Lassen
Litchfield, southeastern Lassen County
Comment
CAS-BOT-BC294184
Ericameria nauseosa var. speciosa
Louella Bass
1973-9-4
EV 133
Lassen
Elysian Valley
1325
Comment
CAS-BOT-BC294185
Ericameria nauseosa var. speciosa
John Thomas Howell; Gordon H. True; Wayne Dakan
1974-7-30
50696
Lassen
South and southeast of Diamond Mt.
2286
Comment
CAS-BOT-BC294187
Ericameria nauseosa var. speciosa
John Thomas Howell; Gordon H. True
1973-8-1
50217
Lassen
Headwaters of Baxter Creek, east slope of Diamond Range south of Susanville
2164
Comment
UC761817
Ericameria nauseosa var. speciosa
R. F. Hoover
1940-9-29
4646
Lassen
pass betw. Shaffer Mt. and Warren Peak
Comment
UC773959
Ericameria nauseosa var. speciosa
L. R. Short
1936-9-14
S- 503
Lassen
Burgess Spring Experiment Range Lassen Forest
1761
Comment
CDA18270
Erigeron
G. D. Barbe
1974-8-2
1935
Lassen
Long Valley; Hallelujah Junction, northwest corner of jct of US Hwy 395 and Hwy 70.
1524
Comment
RSA121426
Erigeron aphanactis
E. Sawyer
1935-6-27
238
Lassen
Long Valley
1341
Comment
RSA517336
Erigeron aphanactis
Barbara Ertter, Gary Schoolcraft
1987-6-16
7176
Lassen
Skeeadaddle Mtns on the NE side of Honey Lake. E side of road over saddle on W side of range.
1646
Comment
CHSC105254
Erigeron bloomeri var. bloomeri
Lowell Ahart; John Dittes
2010-7-31
17010
Lassen
About 2,300 feet north of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin.
1510
Comment
CHSC4947
Erigeron bloomeri var. bloomeri
R. Carter
1967-6-23
545
Lassen
Growing 10 yds off s side rd.
Comment
CHSC64864
Erigeron bloomeri var. bloomeri
Vernon H. Oswald
1995-6-26
6917
Lassen
Modoc Plateau. Ash Valley Rd. (Lassen 527), 4.2 mi w of Madeline.
1652
Comment
CHSC92714
Erigeron bloomeri var. bloomeri
L. P. Janeway; B. Castro
2005-7-10
8486
Lassen
Northern High Sierra Nevada. Crest of Diamond Mountains over-looking the northwest end of Honey Lake, more or less at the north end of Stony Ridge. Northeast edge of low flat ridge.
1993
Comment
JEPS89690
Erigeron bloomeri var. bloomeri
Dean Wm. Taylor with Glenn Clifton
1990-6-12
10878
Lassen
Forest Road 39N08 just as the road enters the valley as traveling from Adin (Ash Valley, Modoc Plateau); Modoc Plateau, Ash Valley, Forest Road 39N08
1554
Comment
POM33272
Erigeron bloomeri var. bloomeri
Marcus E. Jones
1897-6-19
s.n.
Lassen
Chat.
1524
Comment
UC1136834
Erigeron bloomeri var. bloomeri
George A. Fischer and Irwin H. Johnson
1933-7-12
F 217
Lassen
Lassen National Forest
1722
Comment
UC1536740
Erigeron bloomeri var. bloomeri
G. H. True Jr.
1936-6-27
559
Lassen
near top Hot Spring Mt.
1828
Comment
CAS-BOT-BC294486
Erigeron bloomeri var. bloomeri
Clarence R. Quick
1964-7-29
64 -90
Lassen
Blacks Mt. Experimental Forest
1798
Comment
CAS-BOT-BC297144
Erigeron concinnus var. concinnus
Ella Dales Cantelow
1940-5-31
3086
Lassen
e. of Bieber
1219
Comment
CAS-BOT-BC297145
Erigeron concinnus var. concinnus
Roxana S. Ferris; Rena Duthie
1919-6-13
19
Lassen
Madeline
Comment
CAS-BOT-BC295979
Erigeron divergens
Clare B. Hardham
1969-8-28
17421
Lassen
West of Janesville, Sierra Nevada
Comment
CHSC75455
Erigeron divergens
Vernon H. Oswald; Lowell Ahart
1999-6-9
9748
Lassen
Northeast of Susanville on County Rd. 216 at Biscar Wildlife Management Area. Below the dam of the reservoir.
1353
Comment
CAS-BOT-BC295978
Erigeron divergens
Gary Schoolcraft
1984-9-4
1372
Lassen
Fredomyer Mtn.
1737
Comment
JEPS1207
Erigeron eatonii var. plantagineus
Milo S. Baker
1952-5-23
12433
Lassen
Hwy 36 1/2 mi w Fredonyer Pass
1752
Comment
POM32997
Erigeron eatonii var. plantagineus
Marcus E. Jones
1897-6-30
s.n.
Lassen
Eagle Lake, 27 miles from Susanville.
1524
Comment
RSA0049606
Erigeron eatonii var. plantagineus
Dean Wm. Taylor
2012-6-6
21226
Lassen
ca. 5 air miles West of Susanville, site is 1 mile due north of the junction of Highway 44 and Highway 36
1877
Comment
UC87591
Erigeron eatonii var. plantagineus
T. S. Brandegee
1892-7-2
Lassen
Susanville
Comment
UCD131889
Erigeron eatonii var. plantagineus
Jack Major
1966-6-24
s.n.
Lassen
Long Valley, 3 miles airline southwest of Patterson Guard Station, northeastern county.
2087
Comment
CAS-BOT-BC300426
Erigeron elegantulus
Mrs. C. C. Bruce
1898-6-1
2182
Lassen
Madeline Plains
Comment
JEPS95131
Erigeron elegantulus
Vernon H. Oswald and Lowell Ahart
1997-5-27
8492
Lassen
w side of Hwy 139 s of Willow Creek Guard Station 0.9 mi s of Forest Road 38N04 to Coyote Flat Coyote Flat; Hwy 139
1577
Comment
RSA0049607
Erigeron elegantulus
Dean Wm. Taylor
2012-6-7
21227
Lassen
Grasshopper Valley; Grasshopper Valley Road 2.3 road miles E of junction with Highway 139
1635
Comment
CHSC57259
Erigeron filifolius var. filifolius
Mary Meyer
1980-7-16
Lassen
Above bank of Willow Creek.
1463
Comment
CAS-BOT-BC295180
Erigeron inornatus
Clarence R. Quick
1964-8-5
64 -97
Lassen
Cal Mt. east of Poison Lake
1767
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
RSA712921
Erigeron inornatus var. inornatus
L. P. Janeway
2005-8-27
8522
Lassen
High Cascade Range. Along Road 22, 11.3 road km east of Little Valley; above Davis Creek.
1460
Comment
RSA719702
Erigeron inornatus var. inornatus
Michael A. Vincent, K. Levings
2006-7-29
12910
Lassen
Along Rt. 36, 14.3 miles west of Susanville.
Comment Read comments Feb 21 2013
CAS-BOT-BC295471
Erigeron lassenianus var. lassenianus
Lassen 1927 G. S. Crew
1927-6-25
34
Lassen
Lassen National Forest. Norval Flat
1747
Comment
CAS-BOT-BC295472
Erigeron lassenianus var. lassenianus
Parkison
1916-6-21
40
Lassen
Lassen National Forest. Near Patterson Cabin
1706
Comment
CHSC67165
Erigeron linearis
James D. Jokerst
1991-5-29
3314
Lassen
Modoc Plateau. Survey for reroute of Hwy. 139 ca. 0.75 N of the N end of Eagle Lake, E of the highway +/- 500 ft on top of ridge N of a drainage.
1584
Comment
POM39968
Erigeron linearis
Marcus E. Jones
1897-6-28
s.n.
Lassen
Top of Diamond Mt. Susanville. Perkin's Ranch.
2226
Comment
CDA19737
Erigeron pumilus
D. Tillotson
1942-6-9
s.n.
Lassen
Modoc Plateau; Mud Flat.
0
Comment
CHSC14070
Erigeron pumilus var. intermedius
K. R. Stern; D. B. Joley, J. G. Geschke
1974-6-22
5812
Lassen
Ca. 16.5 mi w of Madeline, on Madeline-Adin Road.
1548
Comment
HSC81807
Erigeron pumilus var. intermedius
Thomas W. Nelson, Jane Nelson
1980-7-6
6029
Lassen
Ash Valley, along branch road off Adin-Madeline Rd. just S of bridge over Ash Creek, 16 mi. SE of Adin, 200 yds. SE of main road.
1555
Comment
UC1536739
Erigeron pumilus var. intermedius
G. H. True Jr.
1936-6-27
558
Lassen
near top of Hot Spring Mountain
1828
Comment
UC1567402
Erigeron pumilus var. intermedius
G. Schoolcraft
1989-6-19
1916
Lassen
Ash Valley RNA/ACEC , Susanville
1554
Comment
UCD18963
Erigeron pumilus var. intermedius
R. E. Francis
1965-7-7
8
Lassen
Lassen National Forest, Harvey Valley Allotment.
1737
Comment
NY399607
Eriogonum baileyi var. baileyi
E. K. Balls
1952-10-10
18139
Lassen
5.5 miles northeast of Litchfield, Highway 395, between Susanville and Alturas
1280.2
Comment
SJSU13948
Eriogonum baileyi var. praebens
N. A. Hopkins
1986-8-28
1381
Lassen
County Rd 33 (Scott Rd), lower Long Valley N of Hwy &0 & E of Beckwourth Pass
Comment
CAS-BOT-BC241878
Eriogonum cernuum
R. F. Hoover
1940-10-5
4667
Lassen
Wendel
Comment
RSA616540
Eriogonum cernuum var. cernuum
G. R. Ballmer
1993-7-31
s.n.
Lassen
Sandy flats along Fort Sage Road, NE of Doyle, SE of Honey Lake, 2-5 miles airline W of Nevada border
Comment
NY242509
Eriogonum collinum
A. A. Heller
1938-6-23
15208
Lassen
On U.S. Highway #395 about midway between Mapes and Secret Valley.
Comment
SEINET6332092
Eriogonum collinum
A. J. Cronquist, A. H. Holmgren
1959-6-17
8478
Lassen
1 mile south of Ravendale, 40 miles northeast of Susanville.
1615
Comment
UC1477728
Eriogonum collinum
Gary Schoolcraft
1979-6-19
73
Lassen
n, along road Big Spring
1676
Comment
UC762697
Eriogonum collinum
R. F. Hoover
1940-9-29
4645
Lassen
low pass between Shaffer Mt. and Warren Peak
Comment
SEINET5328978
Eriogonum collinum
N. H. Holmgren, James Lauritz Reveal
1964-8-22
1723
Lassen
48 miles northeast of Susanville, 4 iles south of Ravendale,
Comment
JEPS94457
Eriogonum douglasii var. meridionale
Vernon Oswald and Lowell Ahart
1997-6-24
8639
Lassen
s of Susanville (near the small pond on the crest of Diamond Mountain, about midway between Aspen Flat and Red Rock Lookout); crest of Diamond Mountain
2249
Comment
CHSC50839
Eriogonum elatum var. elatum
Vernon Oswald; Lowell Ahart
1990-7-25
4399
Lassen
Intersection of Hwy 70 and Scott Rd, 2.2 mi west of Hwy 395.
1463
Comment
UC1305802
Eriogonum maculatum
Noel H. Holmgren, James L. Reveal
1964-8-22
1724
Lassen
18 mi s along U.S. 395 Ravendale (35 mi ne of Susanville)
Comment
UC1533147
Eriogonum maculatum
G. Schoolcraft
1986-9-9
1670
Lassen
0.1 mi w along Smoke Creek Road CA-NV stateline
1341
Comment
SEINET10299463
Eriogonum maculatum
W. L. Jepson
1918-8-5
Lassen
Madelin Plains
1615
Comment
RSA78919
Eriogonum microtheca var. ambiguum
E. K. Balls, Percy C. Everett
1952-10-10
18143
Lassen
8 mi. SE of Ravendale, Hwy 395, Susanville to Alturas.
1280
Comment
UC1523724
Eriogonum microthecum var. ambiguum
Gary Schoolcraft
1982-8-18
898
Lassen
s Doyle Grade Road (w of Doyle)
1584
Comment
NY803457
Eriogonum microthecum var. schoolcraftii
G. Schoolcraft
2003-8-21
2945
Lassen
Slopes below McKessick Peak ca. 10 miles southeast of Milford, CA-nwse
1504
Comment
JEPS127634
Eriogonum nudum
Alejandro Brambila, Michael Dolan
2016-7-28
CA 320 -154
Lassen
Likely Mtn. on road 171. Collecting site is a 100-300 m before reaching the Forest Service Boundary.
Comment
JEPS128413
Eriogonum nudum
Catherine Bauer with Ellen Bauer Benson
2017-8-16
19
Lassen
South of Highway 44, North of Butte Lake, at Butte Creek Campground. Santa Clara Valley, National Forest Service, National Forest Campground.
Comment
SD132453
Eriogonum nudum
G. Helmkamp
1990-9-23
G 11
Lassen
Sagebrush scrub area N of Ravendale. Riparian area beside small creek
1676
Comment
SEINET530760
Eriogonum nudum var. deductum
Paul Opler
2008-8-6
Lassen
West of Milford, nr. Laufman Campground.
Comment
SJSU9529
Eriogonum nudum var. deductum
J. W. Tilden
1960-6-27
1492
Lassen
Westwood
1524
Comment
CAS-BOT-BC261445
Eriogonum nudum var. nudum
Clare B. Hardham
1969-8-28
17442
Lassen
West of Janesville
Comment
CHSC105258
Eriogonum nudum var. nudum
Lowell Ahart; John Dittes
2010-7-31
16983
Lassen
About 100 yards northeast of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin.
1520
Comment
CHSC106170
Eriogonum nudum var. nudum
Lowell Ahart; John Dittes
2010-8-30
17088
Lassen
South 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
CHSC67061
Eriogonum nudum var. pubiflorum
Willis Ball
1969-6-27
50
Lassen
Found about 50 yds. S. of Gallatin Beach. Growing beside Gallatin Beach Parking Lot.
1561
Comment
UC1137674
Eriogonum nudum var. pubiflorum
L. R. Short and Wm. Gansberg
1936-7-3
S- 474
Lassen
Burgess Spr. Exp. Range Lassen Forest, Burgess Spr. Exp. Range
1798
Comment
HSC68914
Eriogonum nudum var. pubiflorum
Gary Schoolcraft
1979-7-3
117
Lassen
1.0 mi. NW of rest area on Hwy. 395
1570
Comment
POM105327
Eriogonum ochrocephalum var. ochrocephalum
Marcus E. Jones
1897-6-28
s.n.
Lassen
Diamond Mountain; Susanville; Perkin's Ranch.
1829
Comment
CHSC72220
Eriogonum ovalifolium var. depressum
Vernon H. Oswald
1998-9-14
9627
Lassen
Windy Hollow on the west side of Hwy. 44 ca. 1 mi northwest of its intersection with A21 (to Westwood).
1737
Comment
UC1032333
Eriogonum ovalifolium var. ovalifolium
A. Simontacchi
1940-6-30
932
Lassen
4.2 mi s Blacks Mtn.; Lassen National Forest, Halls Flat Quadrangle
Comment
UC54767
Eriogonum ovalifolium var. ovalifolium
J. Burtt Davy
Jun 17 1897-Jun 24 1897
Lassen
Amadee Honey Lake Valley, Amadee
Comment
POM203845
Eriogonum spergulinum var. reddingianum
J. T. Howell
1934-7-6
12446
Lassen
Harvey Valley
Comment
UC6621
Eriogonum spergulinum var. reddingianum
M. S. Baker and Frank Nutting
1894-7-9
Lassen
Pine Creek
Comment
POM165475
Eriogonum sphaerocephalum
Geo. D. Butler
1910-5-20
1371
Lassen
Dry rocky hill, Yreka.
Comment Read comments Apr 25 2013
CHSC57304
Eriogonum sphaerocephalum var. halimioides
Mary Meyer
1980-7-9
Lassen
One mile northwest of Horse Camp Spring. Meadow.
1706
Comment
CHSC68755
Eriogonum sphaerocephalum var. halimioides
Vernon H. Oswald; Lowell Ahart
1997-5-27
8491
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
JEPS93796
Eriogonum sphaerocephalum var. halimioides
Vernon H. Oswald
1998-7-6
9246
Lassen
2.7 mi se of Highway 36 (Shugru Reservoir in Bass Hill [WA] on Highway 395 between Susanville and Janesville); Shugru Reservoir, Bass Hill
1243
Comment
UC1032330
Eriogonum sphaerocephalum var. halimioides
A. Simontacchi
1940-7-8
923
Lassen
5.1 mi s Jelly Camp; Lassen National Forest, Halls Flat Quadrangle
Comment
JEPS56418
Eriogonum sphaerocephalum var. sphaerocephalum
Hilda W. Grinnell
1934-5-31
Lassen
near Susanville (mouth of Piute Creek Canyon); Piute Creek Canyon
Comment
UC726566
Eriogonum sphaerocephalum var. sphaerocephalum
A. A. Heller
1938-6-23
15214
Lassen
s Secret Valley (on U. S. Highway #395)
1371
Comment
NY283383
Eriogonum strictum
G. Schoolcraft
1985-6-12
1422
Lassen
Near intersection of Horse Lake Road & Highway 139
1487.4
Comment
NY283175
Eriogonum strictum subsp. proliferum
W. W. Eggleston
1911-7-7
7173
Lassen
Secret Valley
1330
Comment
NY283239
Eriogonum strictum subsp. proliferum
H. D. D. Ripley
1943-6-13
5711
Lassen
South of Johnstonville
1325.9
Comment
NY762353
Eriogonum strictum var. anserinum
J. T. Howell
1934-7-7
12478
Lassen
Harvey Valley
Comment
UC1924216
Eriogonum strictum var. anserinum
Debra Valov
2004-6-9
2004268
Lassen
Bieber; off County A2 c. 12 km E of Hwy 299
1270
Comment
CAS-BOT-BC267890
Eriogonum umbellatum
A. A. Heller
1938-6-23
15202
Lassen
West of Susanville
Comment
JEPS127724
Eriogonum umbellatum
Alejandro Brambila, Michael Dolan
2016-8-2
CA 320 -181
Lassen
Head north on unnamed road west of Holbrook Reservoir from Ash Valley Road.
Comment
SEINET8513574
Eriogonum umbellatum
O. Schilling, M. Gray, S. Jesselson, A. Rosenblum
2015-7-16
NV 030 -1125
Lassen
Constantia Allotment, South on Red Rock Road until reach Highway 395, head South, second left into allotment, halfway up first hill
1469
Comment
RSA0025577
Eriogonum umbellatum
John F. Emmel
1996-7-14
1427
Lassen
At Hwy 395 crossing of Secret Creek, on slope 0.1-0.2 air mi SSE of the crossing, 2.7 road mi north of Karlo Road junction.
Comment
CHSC4436
Eriogonum umbellatum var. modocense
K. R. Stern
1967-7-1
2461
Lassen
Ca. 16 mi. NE of Susanville. State Hwy 139.
Comment
CHSC6227
Eriogonum umbellatum var. modocense
A. Santos
1946-6-10
Lassen
Pelican Point, Eagle Lake.
1556
Comment
JEPS114751
Eriogonum umbellatum var. modocense
Lowell Ahart, John Dittes
2008-6-19
14882
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
UC1537274
Eriogonum umbellatum var. modocense
Gordon H. True Jr.
1936-6-25
536
Lassen
e Harvey Ranger Station; Harvey Valley
1706
Comment
CAS-BOT-BC265092
Eriogonum umbellatum var. nevadense
John Thomas Howell; Gordon H. True; Wayne Dakan
1974-7-30
50673
Lassen
Summit ridge of Diamond Mt., Sierra Nevada
2346
Comment
CAS-BOT-BC265099
Eriogonum umbellatum var. nevadense
Mrs. E. C. Van Dyke
1931-6-13
s.n.
Lassen
Kelly Camp, Mt. Lassen Natl. Park
Comment
CHSC111254
Eriogonum umbellatum var. nevadense
L. P. Janeway; B. Castro
2012-7-3
10937
Lassen
Modoc Plateau. Near top of Shaffer Mountain, southeast-facing slope, steep and very rocky with lots of outcrops of hard dark volcanic rock.
2012
Comment
NY399279
Eriogonum umbellatum var. nevadense
L. Bass
1983-6-10
383
Lassen
About 3 miles east of Susanville, Center Road near Leavitt lane
Comment
NY399398
Eriogonum umbellatum var. nevadense
H. D. D. Ripley
1943-6-13
5713
Lassen
South of Johnstonville
1325.9
Comment
POM105088
Eriogonum umbellatum var. nevadense
Marcus E. Jones
1897-6-26
s.n.
Lassen
Susanville, Perkin's Ranch.
1463
Comment
POM253245
Eriogonum umbellatum var. nevadense
A. A. Heller
1938-6-23
15215
Lassen
Grassy, gravelly slope between Secret Valley and Ravendale.
1524
Comment
UC1032270
Eriogonum umbellatum var. nevadense
H. P. Hagge
1929-9-11
22
Lassen
Logan Mtn. Eagle Lake Quadrangle, Logan Mtn.
Comment
CAS-BOT-BC265098
Eriogonum umbellatum var. nevadense
Louella Bass
1983-6-12
1 -83
Lassen
On Sears Road near Janesville, Sierra Nevada
Comment
CAS-BOT-BC262364
Eriogonum vimineum
John Thomas Howell
1934-7-8
12493
Lassen
Spalding's, Eagle Lake
Comment
CAS-BOT-BC262365
Eriogonum vimineum
Marcus E. Jones
1897-6-18
s.n.
Lassen
Chat
1524
Comment
CAS-BOT-BC262367
Eriogonum vimineum
John Thomas Howell
1976-7-19
51952
Lassen
Southwest of Susanville on Gold Run Road
1341
Comment
CHSC4981
Eriogonum vimineum
R. Clicquennoi
1967-6-24
32
Lassen
On the approaches to Murrer's Upper Meadow 4 mi e of Eagle Lake Biology Station.
1524
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
JEPS97409
Eriogonum vimineum
Vernon H. Oswald and L. Ahart
1995-6-19
6882
Lassen
T30N R15E NE1/4 SE1/4 Sect. 22, 4500 ft, Modoc Plateau, Sagebrush Scrub. Between Litchfield and Ravendale on Smoke Creek Ranch Rd., 0.7 mi e of Hwy. 395
1371
Comment
UC412830
Eriogonum vimineum
Lewis S. Rose
1940-6-16
40596
Lassen
Janesville
1280
Comment
UC6518
Eriogonum vimineum
M. S. Baker and F. Nutting
1894-7-2
Lassen
Dixey Mts.
Comment
UC767818
Eriogonum vimineum
R. F. Hoover
1940-10-5
4672 a
Lassen
pass between Shaffer Mt. and Warren Peak
Comment
SDSU7202
Eriogonum vimineum
D. F. Howe
1960-9-21
2994
Lassen
2.0 Miles north of Janesville.
1219
Comment
SEINET3160096
Eriogonum vimineum subsp. vimineum
L. S. Rose
1940-6-16
40596
Lassen
Janesville
1280
Comment
CHSC96443
Eriophorum gracile
Gordon Leppig; T. LaBanca, L. Arguello
1997-6-28
508
Lassen
Modoc National Forest. Blue Lake Ranch.
1970
Comment
CHSC5210
Eriophyllum lanatum
W. Vinyard
1946-6-10
Lassen
Pelican Point, Eagle Lake.
1556
Comment
CHSC67057
Eriophyllum lanatum
Willis Ball
1969-6-19
9
Lassen
Found approx. 1/2 mile N. of E.L.B.S. Near old Eagle Lake basin.
1584
Comment
RSA647564
Eriophyllum lanatum
Marion P. Harthill
1971-6-20
205
Lassen
Susanville
Comment
CAS-BOT-BC308138
Eriophyllum lanatum var. achilleoides
John Thomas Howell
1934-7-8
12481
Lassen
Spalding's, Eagle Lake
Comment
UC896366
Eriophyllum lanatum var. achilleoides
A. A. Heller
1938-6-23
15197
Lassen
on a ridge e Fredonyer Pass (on Highway #36)
1645
Comment
CAS-BOT-BC308139
Eriophyllum lanatum var. achilleoides
Clarence R. Quick
1964-7-29
64 -85
Lassen
Blacks Mt. Experivmental Forest
1798
Comment
SEINET8687254
Eriophyllum lanatum var. achilleoides
J. A. Young
1982-6-7
s.n.
Lassen
Redlands
1676
Comment
JEPS117575
Eriophyllum lanatum var. grandiflorum
Lowell Ahart, John Dittes
2010-7-31
17024
Lassen
About 100 yards northeast of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin
1520
Comment
CHSC25127
Eriophyllum lanatum var. integrifolium
Paul Lyman
1970-5-2
27
Lassen
Honey Lake Valley; Janesville. Found on Bald mountain, 75 yds. north of cattle guard at south entrance.
Comment
PASA2212
Eriophyllum lanatum var. integrifolium
Frank W. Peirson
1926-6-24
Lassen
Several miles southward from the Madeline Plain
Comment
POM66833
Eriophyllum lanatum var. integrifolium
Marcus E. Jones
1897-6-30
s.n.
Lassen
Eagle Lake, 27 miles from Susanville.
1524
Comment
UC1368789
Eriophyllum lanatum var. integrifolium
John L. Strother
1970-5-23
956
Lassen
about 6 mi n Honey Lake
1280
Comment
UC507013
Eriophyllum lanatum var. integrifolium
George A. Fischer and Irwin H. Johnson
1933-7-12
F- 200
Lassen
Grass Valley Lassen National Forest, Grass Valley
1697
Comment
UC1487306
Eryngium alismifolium
Yusuf Sheikh and Lincoln Constance
550
Lassen
U.C. Botanical Garden; ; alongside State Highway 395, 4.1 miles NNW of Termo, Madeline Plains
Comment
UC21010
Eryngium articulatum
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3374
Lassen
Honey Lake Valley
Comment
CDA38324
Eryngium articulatum
Wheeler
1953-9-22
s.n.
Lassen
[no additional info]
0
Comment
RSA121673
Erysimum capitatum var. capitatum
L. R. Short, B. H. Short
1936-6-15
S- 437
Lassen
Lassen Forest. Longs Well.
1713
Comment
UC585097
Erysimum capitatum var. capitatum
E. B. Babcock and G. L. Stebbins Jr.
1936-6-7
1766
Lassen
ne slope of ridge near summit east of Red Rock
1818
Comment
UC1184056
Erysimum perenne
Jean Langenheim
1957-6-26
4398
Lassen
from areas adjacent to 1937 chaparral quadrat (nw part of valley); Said Valley
Comment
CAS-BOT-BC55196
Erysimum repandum
John Thomas Howell
1934-6-10
11904
Lassen
3 miles south of Ravendale.
Comment
CAS-BOT-BC55197
Erysimum repandum
William Anderson
1963-4-16
s.n.
Lassen
Honey Lake Valley.
Comment
CHSC66267
Erythranthe breweri
Vernon H. Oswald; Lowell Ahart
1996-6-24
7866
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-BC151473
Erythranthe latidens
James Jokerst
1983-7-23
1872
Lassen
Grasshopper Valley Quad., near Madeline Plains
1614
Comment
CHSC5010
Erythranthe primuloides
L. G. Bennett
1967-7-7
112
Lassen
Deans Meadow, near Eagle Lake.
1706
Comment
POM260456
Erythranthe pulsiferae
C. L. Hitchcock
1940-5-26
6611
Lassen
Lava beds ca 12 miles north of Fall River Mills (Shasta Co.) on Fall River.
1372
Comment
NY500075
Eschscholzia
W. W. Eggleston
1911-5-29
6752
Lassen
Vicinity of Doyle Station
1290
Comment
CAS-BOT-BC403150
Eschscholzia californica
A. M. Vollmer; L. Beane
1953-7-1
103
Lassen
Along Halls Flat road, beginning 6 miles west of Susanville to McArthur
1554
Comment
CAS-BOT-BC312018
Eucephalus breweri
Clare B. Hardham
1971-8-22
18390
Lassen
Diamond Mountain
2133
Comment
SEINET8506929
Euphorbia crenulata
D. W. Taylor
2008-5-14
20198
Lassen
Unnamed flat about 2 air miles SSE of Poison Butte
1768
Comment
UCD39131
Euphorbia crenulata
Beecher Crampton
1964-6-25
7072
Lassen
25 miles n.w. Susanville State Hwy. 44, Bogard Ranger Station, Lassen National Forest.
1722
Comment
JEPS97418
Euphorbia spathulata
Vernon H. Oswald and L. Ahart
1995-6-19
6881
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
JEPS127347
Euphorbia virgata
Lowell Ahart, John Dittes
2016-7-13
21118
Lassen
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.
Comment
JEPS100337
Eurybia integrifolia
Dean W. Taylor
2001-7-19
17843
Lassen
Diamond Mountains, ridgecrest ca. 1 air mile South of Doyle Grade
2072
Comment
CAS-BOT-BC312105
Eurybia integrifolia
Alice Eastwood
1912-8-22
1914
Lassen
Battle Creek Meadows, Lassen Butte Region
Comment
UC1192257
Euthamia occidentalis
Malcolm A. Nobs, S. Galen Smith
1949-8-20
1488
Lassen
1 mi s of Doyle; Long Creek
Comment
UCR17280
Festuca idahoensis
Frank C. Vasek
1975-7-11
750711- 31
Lassen
Modoc National Forest, Hayden Hill Road c. 0.75-1.0 mi SW of Calif. Hwy 139
1829
Comment
CAS-BOT-BC278433
Festuca idahoensis
Clarence R. Quick
1962-6-17
62 -30
Lassen
Western Pacific RR., S. of Halls Flat, Susanville-Pittville road near Blacks Mt. Experimental Station
1706
Comment
UC1024937
Festuca occidentalis
Leo Whitney
1935-6-27
3337
Lassen
Camp 10, Fruit Grower's Supply Company Lassen National Forest
Comment
UC53432
Festuca pratensis
M. S. Baker and Frank Nutting
1894-6-30
Lassen
Big Valley
Comment Read comments Jun 24 2009
UC53777
Festuca pratensis
M. S. Baker and Frank Nutting
1894-6-30
Lassen
near Bieber; Big Valley
Comment
JEPS28299
Festuca rubra
George W. Gillett
1957-7-29
947
Lassen
between Butte Lake and Snag Lake; Lassen Volcanic National Park
1859
Comment
JEPS28300
Festuca rubra
George W. Gillett
1957-7-28
923
Lassen
upper end Butte Lake (trail to Widow Lake above junction w/ Snag Lake trail, dry wash 100 yds. above trail junction); Lassen Volcanic Nat'l Park, Butte Lake
1859
Comment
UC1024944
Festuca rubra
Leo Whitney
1935-6-27
3327
Lassen
1 mi n Camp 10, Fruit Grower's Supply Company; Lassen National Forest
Comment
CAS-BOT-BC282537
Festuca viridula
Parkison
1916-6-16
27231
Lassen
North slope Crater Mountain, Lassen forest
1767
Comment
JEPS28492
Fragaria virginiana
George W. Gillett
1957-7-22
884
Lassen
s end Snag Lake (near campsite); Lassen Volcanic National Park
1850
Comment
SEINET10852446
Frangula rubra
Karen M. Meyer, Andrew Townesmith
2007-7-23
Meyer 156
Lassen
Lassen National Forest. 5.6 miles SW on 32N10 off Hwy. 44. (Turn at rest area).
1980
Comment
HSC26684
Fritillaria atropurpurea
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19220
Lassen
3 mi. N of Westwood
Comment
RSA59815
Fritillaria atropurpurea
E. K. Balls
1950-5-19
14769
Lassen
Above Ash Creek Public Camp, off rd. from Adin to Madeline.
1616
Comment
CHSC60698
Fritillaria pudica
Vernon H. Oswald; Anne-Lise Feenstra
1993-4-17
5274
Lassen
Near Wayman Barn at the W end of Hunt Rd., Ash Creek Wildlife Area, ca. 5 mi NE of Bieber.
1264
Comment
HSC79827
Fritillaria recurva
William E. Rodstrom
1975-5-23
Lassen
Near Day in most NW township of Lassen, 0.5 mi. E of Cinder Pit Mine, N of Hwy. 299
1280
Comment
RSA367755
Fritillaria recurva
J. P. Smith, J. O. Sawyer
1972-5-6
5235 -a
Lassen
Lassen National Forest; Boundary Campground on State Route 89 south of Burney
1067
Comment
CHSC4902
Galium aparine
Bill Wilson
1967-6-23
18
Lassen
Collected at Eagle Lake Biological Station, 10 mi. N of Susanville.
1584
Comment
UC1479580
Galium multiflorum
G. Schoolcraft
1980-6-6
253
Lassen
sw Herlong; Bird Canyon area
1341
Comment
SEINET12495958
Galium multiflorum var. multiflorum
G. Schoolcraft
1999-7-12
2857
Lassen
North slope of Tulehead canyon near NV stateline
1737
Comment
UC1025088
Galium trifidum
Leo Whitney
1934-7-27
1745
Lassen
near Bridge Creek (ca 7-8 mi sw of Eagle Lake); Lassen National Forest, Bridge Creek Camp
1737
Comment
JEPS29538
Galium trifidum var. pusillum
John Thomas Howell
1959-9-23
34886
Lassen
n end of lake Lassen Volcanic National Park, Juniper Lake
2057
Comment
RSA201323
Galium trifidum var. pusillum
J. T. Howell
1959-9-23
34886
Lassen
end of Juniper Lake.
2058
Comment
CHSC23503
Gayophytum
Wayne O. Baum
1971-7-12
71 -75
Lassen
S. slope of Gallatin Peak.
2042
Comment
JEPS128407
Gayophytum diffusum
Catherine Bauer with Ellen Bauer Benson
2017-8-16
15
Lassen
South of Highway 44, North of Butte Lake, at Butte Creek Campground. Santa Clara Valley, National Forest Service, National Forest Campground.
Comment
POM204160
Gayophytum helleri var. glabrum
J. T. Howell
1934-7-9
12532
Lassen
Harvey Valley.
Comment
POM203958
Gayophytum racemosum
J. T. Howell
1934-7-7
12473
Lassen
Harvey Valley.
Comment
RSA715549
Gayophytum racemosum
L. Ahart, John Dittes
2005-6-1
11884
Lassen
Along a poor dirt road, west of Scott Road, Long Valley, about 2.5 air miles northwest of the intersection of Scott Road and Highway 70, 4.0 air miles northwest of Hallelujah Junction.
1439
Comment
UCD150409
Gayophytum racemosum
Harry A. George
1967-6-15
s.n.
Lassen
Willow Creek Ranch.
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
SEINET10491752
Gayophytum ramosissimum
Paul Gallian, David B. Dunn
1971-6-2
Gallian 468
Lassen
6 mi n of hallelujah jct on us hwy 395 in artemisia tridenta, pinyon pine, jeffery pine along high ridge and in sandy wash.
1402
Comment
CAS-BOT-BC217384
Gentiana affinis var. ovata
Duncan Dunning
1921-8-11
5
Lassen
Near Martin Springs, Lassen National Forest
Comment
JEPS88543
Gentiana calycosa
Vernon H. Oswald and Lowell Ahart
1996-8-1
8119
Lassen
Forest Rd, 28N56 (D-Line) ca. 2 mi N of Cyer Mtn. Lookout SSW of Westwood
1737
Comment
UC405455
Gentiana newberryi
Mrs. R. M. Austin
1879-1
Lassen
Mountain Meadows
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
CHSC77216
Geranium richardsonii
Schoolcraft
1999-6-25
2840
Lassen
SW of Lost Lake on SE slopes of Warner Mtns.
2225
Comment
UC1037229
Geranium viscosissimum
Leo Whitney
2007
Lassen
ca 8 mi nw Eagle Lake; Lassen National Forest, Slate Creek
1920
Comment
UC773888
Geranium viscosissimum
L. R. Short and Wm. Gansberg
1936-6-12
S- 433
Lassen
Burgess Spring Experiment Range Lassen Forest
1807
Comment
RSA122288
Geum canescens
L. R. Short, J. Warren
1936-6-23
s.n.
Lassen
Burgess Spring Exp Range.
1765
Comment
CHSC6254
Geum macrophyllum
L. Harman
1946-6-20
Lassen
Eagle Lake. Grasshopper Valley.
1624
Comment
CHSC68869
Geum triflorum
Vernon Oswald; Lowell Ahart
1997-6-24
8649
Lassen
South of Susanville at the pond on the crest of Diamond Mtn., about midway between Aspen Flat and Red Rock Lookout.
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
SBBG70512
Geum triflorum var. ciliatum
E. Rockwell
-Jun-1925
934
Lassen
Eagle Lake
1554
Comment
RSA470172
Gilia brecciarum
Christopher Davidson
1975-6-7
2757
Lassen
1 mile E of Beckwourth Pass on Hwy 70.
1524
Comment
SEINET14626750
Gilia brecciarum subsp. brecciarum
D. L. Neal
1960-5-7
R- 34
Lassen
Red Rock area, ca 10 miles S of Doyle.
1463
Comment
UC1776672
Gilia capillaris
G. Schoolcraft
1993-6-19
2299
Lassen
Ash Valley RNA/ACEC
1554
Comment
CDA40032
Gilia inconspicua
Vernon H. Oswald & Lowell Ahart
1998-6-4
9146
Lassen
Spur road on north side of Red Rock Road, 0.6 mile east of Highway 395, south of Constantia.
Comment
RSA104236
Gilia malior
Verne Grant, Alva Grant
1956-5-17
21753
Lassen
Just south of Secret Valley, north of Litchfield, along Hwy. 395.
1311
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
CHSC93697
Gilia ochroleuca
Lowell Ahart; John Dittes
2005-6-2
11990
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
CHSC64800
Gilia salticola
Vernon H. Oswald
1995-5-31
6816
Lassen
Modoc Plateau. Smoke Creek Ranch Rd. 3.6 mi e of Hwy. 395, between Litchfield and Ravendale.
1353
Comment
CHSC60756
Gilia sinuata
Vernon H. Oswald; Lowell Ahart
1993-6-14
5545
Lassen
Eagle Lake Rd. (Lassen A1) at Sandy Beach on the W shore of Eagle Lake, ca. 2.0 mi ENE of Spaulding Tract Rd. (Rd. 518, 33N89). On dunes on the N side of the road.
1566
Comment
CHSC71242
Gilia sinuata
Vernon H. Oswald; Lowell Ahart
1998-6-4
9146
Lassen
Spur road on north side of Red Rock Rd. 0.6 mi east of Hwy. 395, south of Constantia.
1389
Comment
SD135571
Gilia sinuata
John Thomas Howell, Gordon H. True, Margaret Williams
1973-5-12
49156
Lassen
Janesville, in cemetary.
1295
Comment
JEPS123845
Glyceria borealis
Lowell Ahart, John Dittes
2015-7-14
20326
Lassen
About 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
Comment
OBI77053
Glyceria borealis
Anthony Baniaga
2011-7-23
463
Lassen
Lassen NF. Poison Lake. Poison Lake quad T32N R7E sec 4
1700
Comment
UCR244038
Glyptopleura marginata
Jim Andre
1993-6-1
19708
Lassen
Sierra Nevada/Great Basin, Honey Lake Valley, north end of Honey Lake, c. 20 mi. E of Susanville, at Wendel
1218
Comment
CAS-BOT-BC302596
Gnaphalium palustre
Clare B. Hardham
1971-8-22
18421
Lassen
Diamond Mountain, north slope
2225
Comment
CHSC34404
Grayia spinosa
P. Reynolds
1979-7-4
20
Lassen
1 mi. ne of Wendel. Base of Wendel Canyon.
1295
Comment
UC1537382
Grayia spinosa
Gordon H. True Jr.
1936-6-26
551
Lassen
flats s.e. Standish; Honey Lake Valley
1219
Comment
JEPS124633
Grindelia nana
Laurie Hooker
1965-7-13
117
Lassen
1.4 miles past junction of A-2 and 299.
Comment
SEINET10475073
Grindelia squarrosa
Mary Susan Taylor
1982-8-19
Taylor 5024
Lassen
T23N R17E ne sec 23? Beckwourth Pass quad. E side of Hwy 395, ca. 4 mi n of its jct with Hwy 70 at Hallelujah Jct. Sagebrush Scrub; 4900 ft.
1493
Comment
UC1609450
Gymnosteris parvula
Vernon H. Oswald and Lowell Ahart
1993-6-3
5485
Lassen
between Susanville and Poison Lake (Champs Flat Rd. (Lassen 105, Forest 32N28Y), 2.8 mi n of its jct w Lassen 21 (32N02) to Eagle Lake, on w edge of Pine Creek Valley); Pine Creek Valley, Champs Flat Road
1731
Comment
NY1011958
Gymnosteris parvula
M. J. Williams
1986-5-14
86- 38 --2
Lassen
Tuledad Canyon Road, from Duck Flat to Ravendale. 0.1 mile west of California-Nevada line.
Comment
CAS-BOT-BC388467
Gypsophila paniculata
T. C. Fuller
1963-7-16
10923
Lassen
Janesville
Comment
SEINET3928294
Hackelia californica
Anthony Baniaga
2011-7-9
440
Lassen
Lassen National Forest. Windy Hollow. Pine Creek Valley quadrangle.; 0
1720
Comment
UC699734
Hackelia californica
Farris Farris
1936-6-15
Lassen
Eagle Lake Summit
1981
Comment
UC1583977
Hackelia cusickii
G. Schoolcraft
1990-7-2
2099
Lassen
sw slopes of Cold Spring Mountain
1950
Comment
UC1537393
Hackelia floribunda
Gordon H. True Jr.
1936-6-27
562
Lassen
n slope of Hot Spring Mountain
1828
Comment
UC1560394
Hackelia micrantha
E. Joyal and D. Mehlman
1988-6-29
1295
Lassen
Blue Lake campground Warner Mountains
1850
Comment
UCR109608
Halogeton glomeratus
T. C. Fuller
1962-8-28
9475
Lassen
Adjacent to railroad tracks, Herlong Siding
1250
Comment Read comments Apr 14 2011
UCD98893
Halogeton glomeratus
Les Berry; J. L. Myler, Beecher Crampton
1954-8-17
s.n.
Lassen
near Karlo.
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-BC305408
Helianthus annuus
Louella Bass
1980-8-3
s.n.
Lassen
Standish
Comment
JEPS78105
Helianthus annuus
G. W. Zamzow
1972-7-18
87
Lassen
beside Hwy 395 16.8 mi s intersection with Highway 36
1280
Comment
CAS-BOT-BC305409
Helianthus annuus
John Thomas Howell; G. H. True
1973-7-31
50143
Lassen
Janesville
1295
Comment
CDA18385
Helianthus bolanderi
G. D. Barbe
1978-8-31
2424
Lassen
Modoc National Forest; Hwy 139, NW of Willow Creek Guard Station, Modoc National Forest, 3.6 mi SE of Co Rd A2 to Bieber, 6 mi S of Adin (Modoc Co.).
Comment
SJSU14474
Helianthus cusickii
W. D. Pitts
1990-5-29
299
Lassen
by Hwy 395 between Madeline & Ravendale
1432
Comment
CAS-BOT-BC305660
Helianthus cusickii
Philip A. Munz
1947-5-19
11868
Lassen
27.7 miles south of Ravendale
1310
Comment
CDA6549
Helianthus cusickii
T. C. Fuller
1959-7-7
2910
Lassen
Highway 395 and railroad, 5 miles north of road to Wendel.
0
Comment
UC1483827
Heliotropium curassavicum
G. Schoolcraft
1980-7-10
303
Lassen
e. shore Eagle Lake
1554
Comment
JEPS107809
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
CDA7823
Hemizonia lobbii
T. C. Fuller
1964-10-7
12691
Lassen
Hillside Cemetery, 1 mile southwest of Nubieber.
0
Comment
CHSC77177
Heracleum lanatum
G. Schoolcraft
1997-7-30
2618
Lassen
W slope of Dimond Mtn.
1950
Comment
UC1776663
Heracleum lanatum
G. Schoolcraft
1994-8-2
2404
Lassen
About 1 mile W of Boot Lake
2133
Comment
HSC29978
Hesperochiron californicus
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19191
Lassen
Harvey Valley near Cone Springs
Comment
UC1178997
Hesperochiron californicus
Herbert L. Mason
1949-4-16
13992
Lassen
2 mi. s. Standish
Comment
HSC63725
Hesperochiron californicus
Teresa Prendusi
1980-4-29
Lassen
Five Springs Mtn.
1402
Comment
SEINET5498645
Hesperochiron californicus
D. E. Brix
1962-5-2
s.n.
Lassen
Spring 2 miles from Junction of Red Rock Rd. and Hwy 395
1433
Comment
UC73707
Hesperochiron californicus
Milo S. Baker
1896-5-12
Lassen
near Palmer's
Comment
CHSC4793
Hesperolinon micranthum
R. Carter
1967-6-29
570
Lassen
On rd to Murrer's Meadow. Eagle Lake.
Comment
POM87378
Hesperolinon micranthum
Marcus E. Jones
1897-6-26
s.n.
Lassen
Susanville, Perkin s Ranch.
1463
Comment
RSA795326
Hesperolinon micranthum
L. Ahart, John Dittes
2010-7-31
16975
Lassen
About 100 yards northeast of where the road crosses Hunsinger Draw, 1.9 air miles northwest of Moll Reservoir, 2.8 air miles west of Ash Valley, 8.4 air miles southeast of Adin.
1521
Comment
CAS-BOT-BC280680
Hesperostipa comata
John Thomas Howell
1934-6-10
11841
Lassen
Near Plumas Junction
Comment
UC641664
Hesperostipa comata
G. L. Stebbins Jr.
1939-7-9
2939
Lassen
4 mi s Doyle (near hwy)
1310
Comment
UCD32669
Hesperostipa comata
Beecher Crampton
1954-7-6
2071
Lassen
Lassen County, 17 miles south of Ravendale, along US highway 395.
1524
Comment
RSA783327
Heterotheca villosa var. minor
R. R. Halse
2010-8-26
8091
Lassen
Along State Hwy 70 at Beckwourth Pass ca. 4.3 miles west of its junction with US Hwy 395 or 1.6 miles east of Sierra Valley.
1584
Comment
UC1562822
Heuchera rubescens
Barbara Ertter with Gary Schoolcraft
1987-6-16
7201
Lassen
ne side Honey Lake (between Hot Springs Peak and VABM); Skeedaddle Mountains
2255
Comment
CAS-BOT-BC312418
Hieracium albiflorum
John Thomas Howell; Gordon H. True
1973-8-1
50220
Lassen
Headwaters of Baxter Creek, east slope of Diamond Range south of Susanville
2164
Comment
CAS-BOT-BC312419
Hieracium albiflorum
John Thomas Howell; Gordon H. True
1973-7-31
50025
Lassen
Road from Janesville to Thompson Peak, Diamond Range, Sierra Nevada
1737
Comment
CHSC5212
Hieracium albiflorum
M. West
1946-7-12
Lassen
Silver Lake.
1981
Comment
UC1069609
Hieracium albiflorum
A. Simontacchi
1940-7-2
889
Lassen
6.2 mi ene Ebey Lake; Lassen National Forest, Halls Flat Quadrangle
Comment
OBI77185
Hieracium greenei
Anthony Baniaga
2011-7-18
454
Lassen
Lassen NF.2-1/4 mi ESE of Signal Butte. Swains Hole quad. T32N R6E sec 9 NE of SW
1700
Comment
CHSC66720
Hieracium scouleri var. nudicaule
Vernon H. Oswald; Lowell Ahart
1996-8-1
8129
Lassen
Forest Rd. 28N56 (D-Line) ca. 0.6 mi NNW of Dyer Mtn. Lookout, SSW of Westwood. Near the road.
2011
Comment
CHSC65298
Hieracium scouleri var. scouleri
Vernon H. Oswald
1995-8-21
7206
Lassen
Warner Mtns. Blue Lake located ca. 13 mi SE of Likely. On the W side of the lake.
1859
Comment
CHSC66245
Hippuris vulgaris
Vernon H. Oswald; Lowell Ahart
1996-6-24
7885
Lassen
Modoc Plateau. Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake. Localized colony in shallow water in marshy meadow on the E side of Papoose Creek N of the springs.
1633
Comment
CHSC107997
Holosteum umbellatum subsp. umbellatum
Lowell Ahart; John Dittes
2011-6-20
17482
Lassen
On the east bank 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
JEPS114655
Holosteum umbellatum subsp. umbellatum
Lowell Ahart, John Dittes
2008-6-20
14922
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
OBI77055
Hordeum brachyantherum
Anthony Baniaga
2011-8-4
487
Lassen
Lassen NF. About 1/2 mi WNW of Griffith Hill along 30n21. Swain Mtn quad. T30N R8E sec 8 NE of NW
1907
Comment
RSA647541
Hordeum brachyantherum
Marion P. Harthill
1972-6-17
829
Lassen
Madeline
1677
Comment
CHSC75571
Hordeum brachyantherum subsp. brachyantherum
Vernon H. Oswald; Lowell Ahart
1999-6-9
9751
Lassen
Northeast of Susanville on County Rd. 216 at Biscar Wildlife Management Area. Along a drainage below the dam of the reservoir.
1353
Comment
JEPS28320
Hordeum brachyantherum subsp. brachyantherum
George W. Gillett
1957-7-29
951
Lassen
trail between Butte Lake and Snag Lake; Lassen Volcanic National Park, Butte Lake, Snag Lake
1859
Comment
UC53617
Hordeum brachyantherum subsp. brachyantherum
M. S. Baker and Frank Nutting
1894-7-4
Lassen
Dixey Valley
Comment
SEINET10663525
Hordeum brachyantherum subsp. brachyantherum
Vernon H. Oswald, Lowell Ahart
1999-6-9
Oswald 9751
Lassen
T31N R15E SE 1/4 Sect. 18. Northeast of Susanville on County Rd. 216 at Biscar Wildlife Management Area.
Comment
CHSC25162
Hordeum jubatum
L. E. Ray
1967-6-25
54
Lassen
Ca. 2 mi. w ELBS Pellican Point.
1524
Comment
CHSC5255
Hordeum jubatum
1944-7-11
Lassen
Eagle Lake.
1615
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
CHSC7694
Hordeum jubatum
Beverley J. Wise
1969-6-4
131
Lassen
10 mi. east of Susanville on Hwy 395, Janesville cut in Hwy.
1310
Comment
HSC10190
Hordeum jubatum
M. T. Milligan
1964-8-6
200
Lassen
Eagle Lake, near shore at Eagle Lake General Store.
1677
Comment
CAS-BOT-BC289575
Hordeum marinum subsp. gussoneanum
Geo. A. Fischer
1928-5-27
23
Lassen
Willow Springs, Lassen Forest
1280
Comment
UC188782
Hordeum marinum subsp. gussoneanum
Milo S. Baker
Lassen
n side Dixie Mountains; n side Dixie Mountains
Comment
CAS-BOT-BC289574
Hordeum marinum subsp. gussoneanum
John Thomas Howell
1973-7-10
49804
Lassen
Near Susanville on road to Jonesville, Sierra Nevada
1295
Comment
UC12398
Horkelia fusca subsp. parviflora
M. S. Baker and Frank Nutting
1894-7-28
Lassen
mtns to s Eagle Lake
Comment
SEINET10483366
Horkelia fusca subsp. pseudocapitata
Taylor
1982-7-8
Taylor 4789
Lassen
T23N R17E sw sec 28. Beckwourth Pass quad. ALong spur rd ca. 1/3 mi w of Scott Rd, ca. 1.5 mi ne of Beckwourth Pass, ca. 30 mi n of Reno. 4800 ft. Sagebrush Scrub.
1463
Comment
CHSC84869
Horkelia fusca subsp. tenella
L. P. Janeway; B. Castro
2003-10-5
8007
Lassen
High Cascade Range. Cone Lake and trailhead parking area (trail 1.3 km southwest into Caribou Wilderness Area). Around meadows and ponds.
2055
Comment
JEPS44575
Horkelia fusca subsp. tenella
C. S. Robinson
1930-7-20
37
Lassen
near Westwood Jct.; Norval Flat, Lassen Forest
1747
Comment
POM34906
Horkelia fusca var. brownii
Marcus E. Jones
1897-6-19
s.n.
Lassen
Chat.
1524
Comment
CAS-BOT-BC143984
Horkelia fusca var. tenella
George W. Gillett
1957-7-29
942
Lassen
Along trail between Butte Lake and Snag Lake, 1/4-mile above Butte Lake
1859
Comment
HSC25727
Horkelia fusca var. tenella
D. H. Norris, Thomas W. Nelson, S. Dowty
1971-6-22
19181
Lassen
Harvey Valley near Cone Springs
Comment
CAS-BOT-BC143985
Horkelia fusca var. tenella
Clarence R. Quick
1962-6-17
62 -19
Lassen
N. of DeLasmutt Ranch on Hwy. 44 along dirt road to Blacks Mountain E. F. Hdqrts.
1615
Comment
CAS-BOT-BC537967
Horkelia tridentata var. flavescens
C. L. Hitchcock
1940-5-26
6597
Lassen
Ca. 12 miles north of Fall River Mills. (Shasta Co.) on Fall River
1371
Comment
CAS-BOT-BC55478
Hornungia procumbens
Arnold Tiehm
1980-5-29
5749
Lassen
North end of Honey Lake Valley, just north of Hot Springs 1.1 air miles north northwest of Wendel.
1231
Comment
CAS-BOT-BC213004
Hosackia crassifolia
John Thomas Howell; Gordon H. True
1973-7-31
50036
Lassen
In areas of granitic rock on road from Janesville to Thompson Peak, Diamond Range
1737
Comment
JEPS1628
Hydrophyllum capitatum var. alpinum
Leland S. Smith
Jun 1925
Lassen
near Hayden Hill; Modoc National Forest
1219
Comment
UC614681
Hydrophyllum capitatum var. alpinum
L. Constance
1938-6-10
2325
Lassen
0.5 mi w Fredonyer Pass
1676
Comment
RSA294534
Hymenolobus procumbens
A. Tiehm
1980-5-29
5749
Lassen
North end of Honey Lake Valley, just N of Hot Springs 1.1 air mile NNW of Wendel.
1232
Comment
RSA370316
Hymenolobus procumbens
A. Tiehm, Margaret J. Williams, Gary Schoolcraft
1986-5-12
10350
Lassen
1 road mile west of the state line on dirt road from highway 395 to Smoke Creek, south side of Rush Creek.
1341
Comment
CHSC5266
Hypericum formosum var. scouleri
J. Wolf
1946-6-20
Lassen
Eagle Lake, Grasshopper Valley.
1624
Comment
CAS-BOT-BC88640
Idahoa scapigera
G. Schoolcraft
1995-4-19
2465
Lassen
Southwest of Susanville at west side of Susan Hills.
1341
Comment
CAS-BOT-BC206818
Iliamna bakeri
Richard R. Halse
2004-7-8
6615
Lassen
Along State Hwy. 139, ca. 6 miles N of Eagle Lake.
1710
Comment
NY716915
Iliamna bakeri
R. R. Halse
2004-7-8
6615
Lassen
Along State Highway 139, ca. 6 miles north of Eagle Lake
1710
Comment
SD61029
Iliamna bakeri
Darley F. Howe
1964-8-2
3924
Lassen
Hillside above Parsnip Creek, Warner Mountains; Modoc National Forest.
1829
Comment
HSC63937
Ipomopsis aggregata
Teresa Prendusi
1980-7-21
Lassen
Fredonyer Peak. alongside rd. to lookout
2317
Comment
UC879819
Ipomopsis aggregata
C. L. Hitchcock
1940-5-26
6601
Lassen
ca 12 mi n Fall River Mills (Shasta Co.); Fall River
Comment
HSC69077
Ipomopsis aggregata
Gary Schoolcraft
1979-7-12
145
Lassen
NW side of Shinu Peaks
2134
Comment
CHSC12453
Ipomopsis aggregata subsp. formosissima
Robert W. Severin
1969-7-10
46
Lassen
Found on Galatin Peak, in burn area; 2 mi s of E.L.B.S.
1828
Comment
RSA123124
Ipomopsis aggregata subsp. formosissima
B. O. Schreiber
1936-6-25
S- 412
Lassen
Burgess Spr. Exp. Range
Comment
HSC82266
Ipomopsis congesta
Thomas W. Nelson, Jane P. Nelson
1980-7-6
5991
Lassen
Along Adin-Madelin Rd., 16 mi. E of Adin in Ash Valley
1555
Comment
UC117143
Iris missouriensis
Mrs. R. M. Austin
1879-1
302
Lassen
Eagle Lake
Comment
POM312929
Iris missouriensis
H. L. Mason
1949-5-30
s.n.
Lassen
Northeast of Burney Falls
1524
Comment
CHSC59161
Isoetes howellii
Vernon H. Oswald; Lowell Ahart
1992-9-15
5215
Lassen
Island Lake located N of Bonte Pk. And ca. 1.5 mi W of Juniper Lake campgrounds.
2164
Comment
CAS-BOT-BC61857
Isoetes nuttallii
Alice Eastwood; John Thomas Howell
1940-6-11
7984
Lassen
Big Valley Mts.
Comment
UCD54548
Iva axillaris
Ellen Dean; Petra Unger, Dawn Cunningham
2005-10-10
2733
Lassen
E. of town of Susanville. Private property N of California Correctional Facility.
1248
Comment
CHSC76086
Iva axillaris subsp. robustior
Lowell Ahart; Vernon H. Oswald
1999-9-13
8227
Lassen
Along a slough, on the north side of Mapes Road, about 1/2 mile east of Lambert Lane, about 3 1/2 miles (air) southeast of Standish.
1210
Comment
RSA719895
Iva axillaris subsp. robustior
Michael A. Vincent, K. Levings
2006-7-29
12908
Lassen
Along Rt. 36, 14.3 miles west of Susanville.
Comment
JEPS94475
Ivesia paniculata
Vernon H. Oswald and Lowell Ahart
1997-5-27
8494
Lassen
0.1 mi e of Highway 139 (n of Susanville on Forest Route 38N04, between Hwy 139 near Willow Creek Guard Station and Coyote Flat, on n side of a creek paralleling the road); Forest Route 38N04
1546
Comment
SEINET3860245
Ivesia paniculata
Barbara Kelly
1977-8-9
559
Lassen
Along dirt road from Adin 16 1/4 mi W of Madeline.; 0
Comment
SEINET4855366
Ivesia paniculata
Barbara Kelly
1977-8-9
559
Lassen
Along dirt road from Adin 16 1/4 miles west of Madeline.
Comment
SEINET10891010
Ivesia paniculata
Thomas W. Nelson, Jane P. Nelson
1980-7-6
Nelson 5984
Lassen
T38N, R11W, S. 31 & 32. Ash Valley along Adin-Madeline Rd. 16 miles east of Adin. Sagebrush steppe.
1554
Comment
JEPS109845
Ivesia webberi
Dean W. Taylor
2004-5-11
19062
Lassen
Seven Lakes Mountain, northwestern end flanking Dry Valley, along jeep road ca. 1 mile from Nevada State Line
1341
Comment
JEPS28680
Juncus balticus
George W. Gillett
1957-7-26
907
Lassen
e shore Butte Lake; Lassen Volcanic National Park
1844
Comment
UC1100988
Juncus balticus
Malcolm A. Nobs and S. Galen Smith
1949-7-21
1062
Lassen
4 mi n Madeline
Comment
UC1587074
Juncus balticus
G. Schoolcraft
1991-7-31
2204
Lassen
Cottonwood Spring Shinn Mtn.
2042
Comment
UC2481
Juncus balticus
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3277
Lassen
Tule Confederacy Honey Lake Valley
Comment
UCD141331
Juncus balticus subsp. ater
John Thomas Howell
1959-9-23
34881 A
Lassen
North end of Juniper Lake.
2057
Comment
UCD55162
Juncus balticus subsp. ater
Ellen Dean
2006-5-15
3050
Lassen
E of town of Susanville. Along C.R. A27 (Center Rd.) Grounds of California Correctional Facility.
1248
Comment
HSC26016
Juncus bryoides
F. J. Hermann
1972-5-17
24752
Lassen
8 mi. W of Susanville
1677
Comment
UC1567409
Juncus bufonius
G. Schoolcraft
1989-7-18
1981
Lassen
near Bucks Spring (s of Clarks Valley Road)
1874
Comment
JEPS121285
Juncus bufonius var. bufonius
Lowell Ahart, John Dittes
2013-7-23
18907
Lassen
On the SW side of a man-made pond, about 160 yards NW of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley.
Comment
JEPS91283
Juncus bufonius var. bufonius
Dean Wm. Taylor with Glenn L. Clifton, Rexford E. Palmer and Roy Buck
1987-6-6
9008
Lassen
Big Valley, road from Bieber to Lookout, 0.5 miles South of the Modoc County line
1249
Comment
JEPS126566
Juncus bufonius var. occidentalis
Lowell Ahart, John Dittes
2016-6-7
20988
Lassen
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.
Comment
JEPS67093
Juncus confusus
Brown and Wieslander
1922-7-23
69
Lassen
Martin Springs Eagle Lake
Comment
UCR88026
Juncus confusus
J. T. Howell, G. H. True
1973-8-1
50171
Lassen
Sierra Nevada Range, Gold Run Creek Road, south of Susanville, Diamond Range
1585
Comment
UC1609524
Juncus hemiendytus var. abjectus
Vernon H. Oswald and Lowell Ahart
1993-6-3
5481
Lassen
between Poison Lake and Susanville (s. side of Pine Creek Valley, Champs Flat Rd. (Lassen 105, Forest 32N28Y), where it diverges from Lassen 21 (32N02) to Eagle Lake); Pine Creek Valley
1725
Comment
CHSC108000
Juncus hemiendytus var. hemiendytus
Lowell Ahart; John Dittes
2011-6-20
17480
Lassen
About 15 yards west of the stream, about 40 yards north of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin.
1520
Comment
CHSC60788
Juncus hemiendytus var. hemiendytus
Vernon H. Oswald; Lowell Ahart
1993-6-3
5483
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
JEPS94376
Juncus hemiendytus var. hemiendytus
Vernon Oswald and Lowell Ahart
1997-6-24
8653
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
SEINET3507367
Juncus longistylis
Marcus E. Jones
1897-6-30
Lassen
Susanville, 4 miles below Eagle Lake
1524
Comment
UC1543894
Juncus luciensis
John Thomas Howell and Louella Bass
1974-7-10
50538
Lassen
Elysian Valley Sierra Nevada
1325
Comment
CAS-BOT-BC110768
Juncus mertensianus
John Thomas Howell; Gordon H. True
1973-8-1
50249
Lassen
Sierra Nevada. Diamond Range. Gold Run Creek road south of Susanville.
1950
Comment
CAS-BOT-BC110769
Juncus mertensianus
Clare B. Hardham
1969-8-28
17441
Lassen
Sierra Nevada. West of Janesville.
Comment
POM111106
Juncus mexicanus
Marcus E. Jones
1897-6-23
s.n.
Lassen
Amedee.
1220
Comment
HSC95202
Juncus nevadensis
Gordon Leppig, Tony LaBanca, Leonel Arguello
1997-6-28
512
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
UC1133633
Juncus nevadensis
H. S. Yates
1936-8-12
6080
Lassen
McKenzie Meadow Susanville
1524
Comment
UC1142989
Juncus nevadensis
A. L. Hormay
1941-6-26
28
Lassen
Westwood Junction Lassen National Forest
1737
Comment
JEPS103213
Juncus nevadensis
G. Schoolcraft
1993-6-21
2301
Lassen
North slopes of Skedaddle Mountains
1828
Comment
HSC103618
Juncus orthophyllus
Thomas W. Nelson, Jane Nelson
1985-8-10
8008
Lassen
Along north side of Silver Lake
1829
Comment
UC1601819
Juncus tenuis
M. S. Baker and Frank Nutting
1894-7-3
Lassen
Dixis Mts. Dixie Mts.
Comment
JEPS107986
Juncus tiehmii
Lowell Ahart, John Dittes
2005-6-2
11959
Lassen
Meadow, along a poor dirt road, about 1 mile east of the Anderson Ranch home, Long Valley, about 4 1/2 miles (air) north of the intersection of Scott Road and Highway 70, 6.0 miles (air) northwest of Hallelujah Junction
1425
Comment
CHSC117179
Juncus uncialis
Lowell Ahart; John Dittes
2016-6-7
21013
Lassen
10 yards west of State Highway 299, Big Valley Mountains, 0.4 mile (air) northeast of Big Valley Summit, 5.0 miles (air) southwest of Bieber.
1397
Comment
UC1134300
Juniperus occidentalis
A. Simontacchi
1940-6-5
820
Lassen
8.0 mi wnw of Harvey Valley Ranger Station; Halls Flat Quad., Lassen National Forest
Comment
UC572307
Juniperus occidentalis
C. G. Albertus
1935-11-1
294
Lassen
2.1 mi ne Chats; Sierraville quadrangle
1569
Comment
UCD22742
Juniperus occidentalis
Todd Sloat
1988-6-4
16
Lassen
NE California. Pittville, CA.
1036
Comment Read comments Apr 29 2013
UCR164507
Juniperus occidentalis
Maile Neel
2000-4-29
G- 4
Lassen
Northern Sierra Nevada Mountains, Lassen National Forest, six miles west of Susanville on Hwy 36, at intersection with Eagle Lake Road (A1) near Eagle Lake Ranger Station,
1400
Comment
SEINET5334961
Juniperus occidentalis
J. Vetter
1956-4-27
s.n.
Lassen
About 2 miles north of Susanville
1524
Comment
CAS-BOT-BC81269
Juniperus occidentalis var. australis
John Thomas Howell
1976-7-19
51945
Lassen
Southwest of Susanville on Gold Run Road
1341
Comment
RSA597842
Juniperus occidentalis var. australis
F. C. Vasek
1962-9-3
620903 -1
Lassen
State Highway 36, 3.6 miles west of Ranger Station, west of Susanville
1524
Comment
CHSC60293
Juniperus occidentalis var. occidentalis
Mary Ann Showers
1992-6-13
2531
Lassen
East shore of Butte Lake, ca 0.3 miles south of Butte Creek outlet. Lassen Volcanic National Park.
1841
Comment
CAS-BOT-BC81290
Juniperus osteosperma
Alice Eastwood; John Thomas Howell
1940-6-16
8349
Lassen
Omira
Comment
UCR3784
Juniperus osteosperma
Frank C. Vasek
1964-9-12
640912- 03
Lassen
Calif. Hwy 70 (alt. US Hwy 40), 1.6 mi west of its junction w/ US Hwy 395
Comment
UCR3786
Juniperus osteosperma
Frank C. Vasek
1964-9-12
640912- 04
Lassen
5.2-5.4 mi north of the junction of US Hwy 395 w/ Calif. Hwy 70 (alt. US Hwy 40)
1479
Comment
SEINET5334994
Juniperus osteosperma
J. T. Howell
1961-9-26
36969
Lassen
East side of Beckwith Pass
1554
Comment
CHSC23744
Kelloggia galioides
M. S. Taylor
1974-7-10
273
Lassen
Scattered on W side of Gallatin Beach Rd, ca. 3 mi S of Gallatin Beach on Eagle Lake, ca 12 mi NW of Susanville.
1524
Comment
UC1136752
Kelloggia galioides
George A. Fischer and Irwin H. Johnson
1933-7-14
255
Lassen
Lassen National Forest
1783
Comment
UCD18974
Kelloggia galioides
Raymond D. Ratliff
1965-7-29
34
Lassen
Lassen National Forest, Lower Pine Creek Allotment (LPC 13-2).
1719
Comment
CAS-BOT-BC180803
Kochia scoparia
Louella Bass
1981-7-21
s.n.
Lassen
Standish
Comment
CHSC89746
Koeleria macrantha
L. P. Janeway
2004-6-26
8149
Lassen
High Cascade Range. Halls Flat; about 0.3 km east of Road 33N13 3.5 km north of junction of Road 33N18.
1714
Comment
POM113359
Koeleria macrantha
Marcus E. Jones
1897-6-19
s.n.
Lassen
Chat
1616
Comment
UC1609258
Koeleria macrantha
Vernon H. Oswald and Lowell Ahart
1993-6-28
5586
Lassen
e Poison Lake (Harvey Valley Rd. (33N02) 1.2 mi n of Hwy 44, e side of Grays Valley); Grays Valley, e of Poison Lake
1731
Comment
UC773971
Koeleria macrantha
L. R. Short and D. Gish
1936-6-5
S- 373
Lassen
Burgess Spring Experiment Range
1798
Comment
UC74070
Lactuca tatarica subsp. pulchella
J. Burtt Davy
1897-6-17
Lassen
Comment
JEPS117573
Lagophylla ramosissima
Lowell Ahart, John Dittes
2010-7-31
16997
Lassen
Dry meadow on the bottom of a small wash, about 5 yards north of the large culvert, where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin
1516
Comment
JEPS127275
Lagophylla ramosissima
Lowell Ahart, John Dittes
2016-7-13
21109
Lassen
80 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley.
Comment
JEPS38999
Lagophylla ramosissima
W. L. Jepson
1918-8-2
7776
Lassen
Bedswith Pass
1463
Comment
UC33057
Lagophylla ramosissima
M. S. Baker and F. Nutting
1894-7-2
Lassen
Dixey Mts.
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
CAS-BOT-BC341482
Lagophylla ramosissima
David D. Keck; J. Clausen
1935-6-25
3760
Lassen
Susanville, on yellow-pine covered hills just W. of town
1300
Comment
POM54286
Lagophylla ramosissima
Milo S. Baker
1894-7-5
s.n.
Lassen
Dixey Valley.
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
JEPS114639
Lamium amplexicaule
Lowell Ahart, John Dittes
2008-6-20
14962
Lassen
In meadow, about 30 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber
1263
Comment
CAS-BOT-BC352940
Lasthenia glaberrima
Wm. Anderson
1960-6-6
s.n.
Lassen
Barrow pit along county road S. of Mapes Ranch, Henry Lake Valley
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
CHSC106572
Layia glandulosa
Zachary Garcia
2008-5-3
Lassen
Fort Sage Mtns. OHV Trailhead and Trail to Indian Springs.
1439
Comment
CHSC67171
Layia glandulosa
James D. Jokerst
1991-5-29
3311
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
CHSC91322
Layia glandulosa
Lowell Ahart; John Dittes
2005-6-1
11889
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
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
CAS-BOT-BC321494
Layia glandulosa
John Thomas Howell
1962-6-19
37888
Lassen
Sagebrush flat, 3 mi S of Hallelujah Junction
1524
Comment
CAS-BOT-BC321495
Layia glandulosa
M. S. Taylor
1982-5-29
4571
Lassen
500 yds NE of the jct of Hwy 70 with Hwy 395 at Hallelulia Jct, ca 23 mi N of Reno.
1524
Comment
CAS-BOT-BC321497
Layia glandulosa
Margaret Williams
1974-7-27
74- 2 -51
Lassen
Burned area near Hallelujah Junction, W of Hwy 395 and S of Hwy 70
1493
Comment
UC421730
Lemna trisulca
M. S. Baker and Frank Nutting
1894-7-25
Lassen
Willow Creek
Comment
RSA318598A
Lemna trisulca
Wayne P. Armstrong
1984-8-25
1218
Lassen
Willow Creek-- at bridge on Highway 139 approximately 10 miles north of Susanville
1509
Comment
SD117142
Lemna trisulca
Wayne P. Armstrong
1984-8-25
1218
Lassen
Willow Creek, at bridge on Highway 139, approximately10 miles north of Susanville.
1509
Comment
UC1101286
Lemna turionifera
Malcolm A. Nobs, S. Galen Smith
1949-7-21
1051
Lassen
1 mi e of Madeline
Comment
HSC95343
Lemna valdiviana
Gordon Leppig, Juli Neander, Kai Neander
1997-7-26
697
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
CHSC71871
Lepidium appelianum
Vernon H. Oswald; Lowell Ahart
1998-9-8
9580
Lassen
Ash Creek and Big Swamp 2.2 mi north of Bieber on County Road 91 (Bieber-Lookout Rd.). Roadside.
1258
Comment
CAS-BOT-BC88820
Lepidium campestre
Louella Bass
1973-6-15
110
Lassen
Sierra Nevada. Elysian Valley.
1325
Comment
CHSC99534
Lepidium campestre
Lowell Ahart; John Dittes
2008-6-20
14957
Lassen
In meadow, 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-BC89721
Lepidium latifolium
G. Schoolcraft
1987-9-24
1780
Lassen
Along Riverside Drive in Susanville.
1310
Comment
RSA170322
Lepidium latifolium
T. C. Fuller
1962-8-28
9478
Lassen
On east side of road, Hwy 395 to Litchfield, 4.7 mi S of Ravendale, Madelaine Plains.
Comment
CHSC111251
Lepidium perfoliatum
L. P. Janeway; B. Castro
2012-7-2
10936
Lassen
Modoc Plateau. Along Smoke Creek Ranch Road 6.9 road km east of Hwy 395.
1387
Comment
UCD115855
Lepidium perfoliatum
Grady L. Webster
1989-5-13
7713
Lassen
2.5 mi E of Beckworth Pass.
1493
Comment
CAS-BOT-BC12815
Lepidium perfoliatum
Ira L. Wiggins; Dorothy B. Wiggins
1961-6-11
16332
Lassen
13.5 miles east of Susanville.
Comment
RSA152592
Lepidium perfoliatum
I. L. Wiggins, Dorothy Wiggins
1961-6-11
16332
Lassen
13.5 mi. E of Susanville.
Comment
UC1137720
Leptodactylon pungens
George A. Fischer, Irwin H. Johnson
1933-7-12
F 202
Lassen
Grass Valley; Lassen National Forest, Grass Valley
1700
Comment
CHSC29874
Leptosiphon harknessii
Robin L. Ondricek
1978-7-15
69
Lassen
S of Mahogany Peak.
2072
Comment
SJSU6034
Leptosiphon harknessii
J. W. Tilden
1960-6-27
1507
Lassen
outskirts of Westwood at foot of Moonlight Rd
1524
Comment
POM364710
Leptosiphon harknessii
J. T. Howell
1934-6-10
11844
Lassen
Near Plumas Junction
Comment
UC773857
Leucocrinum montanum
L. R. Short
1936-5-1
S- 342
Lassen
Burgess Spring Experiment Range; Lassen Forest
1699
Comment
CAS-BOT-BC508368
Leucocrinum montanum
M. Lavin; K. Lavin
1982-5-16
4067
Lassen
1.5 miles east of Halleluja Jct., US 395, Sierra Nevada
1676
Comment
CAS-BOT-BC508369
Leucocrinum montanum
Louella Bass
1973-4-29
31
Lassen
Elysian Valley, Sierra Nevada
1325
Comment
SEINET12044967
Leucocrinum montanum
R. M. Austin
1879-1
s.n.
Lassen
Pine Creek
Comment
SEINET12044970
Leucocrinum montanum
R. M. Austin
1879-1
s.n.
Lassen
Pine Creek
Comment
SEINET12319573
Leucophysalis nana
J. D. Prouty
1978-1
9
Lassen
E of Eagle Lake, at Lower Dry Lake, above W shore
1646
Comment
UC614395
Lewisia nevadensis
L. Constance
1938-6-11
2326
Lassen
5 mi sw Susanville
1371
Comment
OBI79710
Lewisia rediviva
Anthony Baniaga
2011-6-11
334
Lassen
Lassen National Forest. Along Highway 139, ca. 4 mi S of Adin. quadrangle.
1326
Comment
CDA7155
Leymus cinereus
G. Schoolcraft
1993-9-18
s.n.
Lassen
1 mile N of Sagehen on W side of Hwy 395.
Comment
JEPS68547
Leymus cinereus
W. L. Jepson
1918-8-2
7795 a
Lassen
Raker Ranch Honey Lake Valley
1219
Comment
UCD64241
Leymus cinereus
L. Whitney
1933-7-16
Lassen
Harvey Mt., Lassen Forest.
1828
Comment
RSA126619
Leymus condensatus
A. Simontacchi
1940-6-30
946
Lassen
Halls Flat: 8.6 miles W. of Burgees Spring
1700
Comment
CHSC66712
Ligusticum grayi
Vernon H. Oswald; Lowell Ahart
1996-8-1
8127 .1
Lassen
Forest Rd. 28N56 (D-Line) ca. 2 mi N of Dyer Mtn. Lookout, SSW of Westwood. On the downhill side of the road.
1737
Comment
CAS-BOT-BC246147
Limosella aquatica
R. F. Thorne; C. W. Tilforth
1969-9-5
39137
Lassen
Said Valley Reservoir
Comment
RSA252393
Limosella aquatica
Robert F. Thorne, C. W. Tilforth
1969-9-5
39137
Lassen
Said Valley Reservoir.
Comment
UC1609099
Limosella aquatica
Vernon H. Oswald and Lowell Ahart
1993-6-28
5602
Lassen
Rd 35N04 at Aspen Well n of Hwy 44 on the nw edge Harvey Valley (ne of Poison Lake); ne of Poison Lake
1725
Comment
UC1523795
Linanthus bolanderi
Gary Schoolcraft
1981-5-5
370
Lassen
s of Adin (on e side of Hwy 139)
1325
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
RSA713161
Linanthus pungens
L. P. Janeway, B. Castro
2005-7-10
8479
Lassen
Northern High Sierra Nevada. Crest of the Diamond Mountains overlooking Janesville and the north end of Honey Lake; 0.2 km north of Rd. 28N01 and 0.6 km east of junction of Janesville Grade Rd (Rd 208 & 28N02) and Road 28N01.
1859
Comment
POM74794
Linanthus pungens subsp. pulchriflorus
Marcus E. Jones
1897-6-18
s.n.
Lassen
Chat.
1524
Comment
CDA6345
Linaria genistifolia subsp. dalmatica
T. C. Fuller
1968-6-12
17236
Lassen
Corut Street & Miller Road, southwest Susanville.
0
Comment
CHSC80221
Linum lewisii var. lewisii
Jeanne Boze
1981-6-12
110
Lassen
Along road to 5 corners, 3.1 from Eagle Lake Field Station.
1737
Comment
CHSC108025
Lithophragma glabrum
Lowell Ahart; John Dittes
2011-6-20
17488
Lassen
Meadow, about 3 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
CHSC61177
Lithophragma glabrum
Vernon Oswald; Lowell Ahart
1993-5-12
5385
Lassen
Hwy. 44 between Old Station and A21 (to Westwood), at a cattle guard 1.6 mi NW of Rd. 32N08 to Crater Lake.
1751
Comment
OBI77066
Lithophragma glabrum
Anthony Baniaga
2011-6-7
316
Lassen
Lassen NF. NW area of Grays Valley, just S of intersection of 33N11 and 32N83Y. Poison Lake quad T32N R7E sec 11 SW of NE
1747
Comment
CAS-BOT-BC435430
Lithophragma glabrum
Louella Bass
1975-4-15
22
Lassen
Elysian Valley; Sierra Nevada
1325
Comment
SEINET6032556
Lithophragma glabrum
D. E. Brix
1962-5-2
s.n.
Lassen
Red Rock Road
1433
Comment
CHSC71099
Lithophragma tenellum
Vernon H. Oswald; Lowell Ahart
1998-5-22
9127
Lassen
Road to summit of Fort Sage Mtns. 2.7 mi east of Fort Sage Rd., ca. 5 mi NE of Doyle.
1463
Comment
UC496334
Lithophragma tenellum
Doris Kildale Gillespie
1930-5-13
9369
Lassen
between Susanville and Janesville
Comment
SEINET8588548
Lomatium austiniae
2015-5-11
NV 030 -1054
Lassen
Constantia Allotment. HWY 395 into CA, past Red Rock fire entrance, turn right onto dirt road entrance before reaching the bridge, drive past two cattle guards, site along ATV road.
1510
Comment
SEINET8588605
Lomatium austiniae
A. Rosenblum, A. Ortega
2015-5-28
NV 030 -1063
Lassen
Plumas allotment. HWY 395 into CA, first median crossing after check station, turn right, follow road left (north) to proposed fence site perpendicular to power line
1460
Comment
CHSC42595
Lomatium bicolor var. leptocarpum
Vernon Oswald
1986-5-28
2048
Lassen
Hwy 36, 11.3 mi e of the Plumas-Lassen Co. line, 0.5 mi sw of Fredonyer Pass.
1691
Comment
CHSC66229
Lomatium bicolor var. leptocarpum
Vernon H. Oswald
1996-6-24
7855
Lassen
Papoose Meadows located ca.0.5 mi E of Eagel Lake Rd. (A1) and 2.5 mi S of Eagle Lake. Modoc Plateau.
1633
Comment
JEPS105642
Lomatium bicolor var. leptocarpum
L. P. Janeway
2001-6-19
7186
Lassen
High Cascade Range. Southeast edge of Long Lake (which is dry) at west end of Long Valley; 6.4 km north-northwest of Harvey Mountain
1640
Comment
UC1123077
Lomatium bicolor var. leptocarpum
Robert W. Gardner
1939-6-6
G- 28
Lassen
Harvey Valley Halls Flat Quad., Harvey Valley
Comment
UC1609378
Lomatium bicolor var. leptocarpum
Vernon H. Oswald and Lowell Ahart
1993-6-28
5620
Lassen
e. Poison Lake (n. of Hwy. 44 along Rd. 33N47 at n.e. end of Little Harvey Valley, between Champs Flat and Harvey Valley, meadow bordering a drying branch of Pine Creek); Little Harvey Valley
1737
Comment
CAS-BOT-BC211146
Lomatium grayi
Mrs. C. C. Bruce
1898-6-1
2286
Lassen
Madaline [Madeline] Plains
Comment
CHSC67146
Lomatium macrocarpum
James D. Jokerst
1991-5-29
3308
Lassen
Modoc Plateau. Survey for reroute of Hwy. 139 at the end of Eagle Lake, top of plateau E of N basin, W of N-S oriented dirt road.
1737
Comment
UC1483807
Lomatium macrocarpum
G. Schoolcraft
1980-4-30
214
Lassen
N of Shaffer Mountain
1365
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
RSA724325
Lomatium macrocarpum
Richard Halse
1977-5-22
1549
Lassen
Along Highway 395, 9.5 miles north of Madeline
1490
Comment
CHSC93705
Lomatium nevadense var. nevadense
Lowell Ahart; John Dittes
2005-6-1
11847
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
CHSC108004
Lomatium nudicaule
Lowell Ahart; John Dittes
2011-6-20
17497
Lassen
About 40 yards east of the stream, about 300 yards north of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin.
1520
Comment
UC1137735
Lomatium nudicaule
L. R. Short and Wm. Gansberg
1936-6-8
S- 399
Lassen
Lassen Forest, Burgess Spring Exp. Range
1755
Comment
CHSC106684
Lomatium plummerae
B. Ignacio
2008-5-3
Lassen
Fort Sage Mountains.
1520
Comment
CAS-BOT-BC123126
Lomatium ravenii
Lincoln Constance; Rimo Carlo Felice Bacigalupi
1959-6-14
3672
Lassen
One mile S of Ravendale
1463
Comment
UC1479583
Lomatium ravenii
Gary Schoolcraft
1980-5-9
232
Lassen
e Sierra Ordnance Depot (Herlong) (near CA-NV State line); e of Sierra Ordnance Depot (Herlong)
1219
Comment Read comments Oct 26 2017
JEPS126472
Lomatium triternatum
Lillie Pennington, Jillian Pastick, Rachael Payer, Andrea Stuemsky
2015-6-15
CA 350 -045
Lassen
Take Ramhorn Road past campsite for approximately 10-15 miles. Turn left as the fork and continue on for about 3 miles.
Comment
CHSC42630
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
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
CHSC7677
Lotus corniculatus
Beverley J. Wise
1969-5-23
59
Lassen
35.5 mi. S.E. of Susanville on Las. Co. Rd. 320.
1249
Comment
UC1249270
Lotus corniculatus
Arthur Cronquist and Arthur H. Holmgren
1959-6-17
8474
Lassen
1 mi se Milford (near Honey Lake, 26 mi se of Susanville)
1310
Comment
POM28313
Lotus crassifolius
Marcus E. Jones
1897-6-25
s.n.
Lassen
Susanville.
1341
Comment
POM28315
Lotus crassifolius
Marcus E. Jones
1897-6-25
s.n.
Lassen
Susanville.
1341
Comment
RSA339993
Lotus humistratus
Noel Holmgren, Patricia K. Holmgren, A. H. Holmgren
1980-7-3
9481
Lassen
Madeline Plains, Westside Road, 9 km (5.6 mi) west of U.S. Highway 395, 16 km (10 mi) airline distance northwest of Termo.
1620
Comment
SEINET3559881
Lotus tenuis
Arthur Cronquist, Arthur H. Holmgren
1959-6-17
8474
Lassen
Near Honey Lake, 1 mi SE of Milford, 26 mi SE of Susanville
1311
Comment
UCD169260
Lotus uliginosus
S. L. Welsh; N. D. Atwood
2001-6-14
28145
Lassen
Secret Valley Spring, at Cherry Creek rest stop, Hwy 395.
1520
Comment
RSA122900
Lotus unifoliolatus
G. A. Fischer, Irwin H. Johnson
1933-7-12
193
Lassen
Grass Valley
1695
Comment
CAS-BOT-BC198254
Lupinus
John Thomas Howell
1976-7-19
51949
Lassen
Southwest of Susanville on Gold Run Road
1341
Comment
NY748272
Lupinus
W. W. Eggleston
1910-9-3
6298
Lassen
Vicinity of Doyle Station
1240
Comment
RSA519408
Lupinus
Rockwell
1925-7-1
s.n.
Lassen
Beckwith
Comment
RSA624904
Lupinus
Jeffrey Huber
1971-6-2
110
Lassen
4 mi. S of Adin along Calif. Hwy. 139.
Comment
UC1181563
Lupinus albifrons
R. F. Hoover
1940-10-1
4650
Lassen
Johnstonville
Comment
UC506912
Lupinus albifrons
George A. Fischer, Irwin H. Johnson
1933-7-14
F 265
Lassen
Lassen Forest
1767
Comment
JEPS97402
Lupinus angustiflorus
Vernon H. Oswald and L. Ahart
1994-7-24
7131
Lassen
T31N R7E ca. center of N side of Sec. 23, 6400 ft, High Cascade Range, Red Fir Forest. N of Lake Almanor on Forest Route 10, ca. 3 mi N of Silver Lake and 1 mi W of Upper Stephens Mdws., just S of Pine Creek
1950
Comment
CHSC29949
Lupinus arbustus
Robin Ondricek
1978-6-6
30
Lassen
Approx. 1 mi from ELFS where lines corss road.
1584
Comment
SEINET10490460
Lupinus arbustus subsp. arbustus
Katherine L. Morris
1973-5-25
Morris 211
Lassen
9.6 miles n of milford on us 395 in an area covered with artemisia, purshia, And rabbit bush
Comment
SEINET10903629
Lupinus arbustus subsp. arbustus
Billy Joe Cox, Paul Gallian
1971-6-2
Cox 2590
Lassen
Ca 6 miles s of susanville at junction of us hwy 395 and cal hwy 36 to Susanville, near johnstonville, assoc.; Purshia, artemisia
1311
Comment
SEINET194956
Lupinus arbustus subsp. silvicola
A. A. Heller
1938-6-4
15142
Lassen
In open places just west of Fredonyer Pass east of Westwood.
1707
Comment
UC1609458
Lupinus argenteus
Vernon H. Oswald and Lowell Ahart
1993-6-14
5514
Lassen
ca 3 mi w Eagle Lake (Eagle Lake Rd. (Lassen A1) 0.5 mi sw Spaulding Tract Rd. (Rd. 518, 33N89)); w of Eagle Lake
1810
Comment
CAS-BOT-BC208740
Lupinus argenteus var. heteranthus
Mrs. H. C. Cantelow
1941-5-22
s.n.
Lassen
11 miles south of Ravendale, Hwy. 395
Comment
CAS-BOT-BC208761
Lupinus argenteus var. heteranthus
Charles Piper Smith
1947-6-13
47443
Lassen
Highway 299, Nubieber, 6.6 miles west.
Comment
CAS-BOT-BC208768
Lupinus argenteus var. heteranthus
A. B. Clawson
1935-7-13
C- 213
Lassen
3 mi. SW of Madeline
Comment
NY736924
Lupinus argenteus var. heteranthus
T. W. Nelson
1980-7-6
6015
Lassen
Along Adin-Madeline road ca. 0.5 mile west of Moll Reservoir
1585
Comment
UC1924594
Lupinus argenteus var. heteranthus
Debra Valov
2006-5-28
2006004
Lassen
Bieber off County Rd A2 c. 8.7 km east of Hwy 299
1284
Comment
UCR270692
Lupinus argenteus var. heteranthus
John F. Emmel
1999-6-5
1631
Lassen
Honey Lake Basin, north end of Fort Sage Mountains, east base of Turtle Mountain
1280
Comment
SEINET5327878
Lupinus argenteus var. heteranthus
W. A. Archer
1938-6-16
6020
Lassen
5 mi W of Doyle
Comment
SEINET5327987
Lupinus argenteus var. heteranthus
J. Young
1982-6-9
s.n.
Lassen
M. Meyer's Ranch, Adin, CA
1372
Comment
CHSC115057
Lupinus argenteus var. meionanthus
Don Lepley
2013-7-2
Lassen
Lassen National Forest, Eagle Lake Ranger District. Approximately 1.8 air miles west-southwest of head of Elysian Valley, northwest of Bear Flat.
2095
Comment
JEPS107915
Lupinus argenteus var. meionanthus
Lowell Ahart, John Dittes
2005-6-2
11937
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 intersection of Scott Road and Highway 70, 7.5 miles (air) northwest of Hallelujah Junction
1600
Comment
NY746960
Lupinus breweri
H. D. D. Ripley
1943-6-13
5709
Lassen
10 miles south of Milford
1768
Comment
RSA11957
Lupinus caudatus
Elmer I. Applegate
1923-9-30
4032
Lassen
Doyle.
Comment
RSA59517
Lupinus caudatus
E. K. Balls
1950-5-21
14824
Lassen
Standish, 7 miles from junction of Highway 36 and 395.
1250
Comment
RSA325238
Lupinus lepidus var. aridus
A. Tiehm
1984-6-25
8823
Lassen
Rodeo Flat, 2.7 miles west of the state line on Buckhorn road from Ravendale to Hwy 81
1829
Comment
NY716913
Lupinus lepidus var. confertus
R. R. Halse
2004-7-22
6670
Lassen
Along U.S. Highway 395 ca. 7.8 miles southeast of Susanville.
1293
Comment
UC127007
Lupinus lepidus var. confertus
M. S. Baker and Frank Nutting
1894-6-20
Lassen
Big Valley
Comment
HSC103613
Lupinus lepidus var. confertus
Thomas W. Nelson, Jane Nelson
1981-7-17
6735
Lassen
Along State Route 395, 22 mi. S of Susanville at milepost 46.80
Comment
UC1138211
Lupinus lepidus var. lobbii
George A. Fischer and Irwin H. Johnson
1933-7-12
F 203
Lassen
Grass Valley; Lassen National Forest, Grass Valley
1700
Comment
CHSC99124
Lupinus lepidus var. sellulus
Lowell Ahart; John Dittes
2008-6-19
14886
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
JEPS88206
Lupinus lepidus var. sellulus
Vernon H. Oswald and Lowell Ahart
1996-6-24
7867
Lassen
Papoose Meadows located 0.5 mi e of Eagle Lake Rd (A!), and 2.5 mi s of Eagle Lake, 0.2 mi s of the cabins Papoose Meadows; Modoc Plateau, Papoose Meadows
1633
Comment
CHSC60830
Lupinus leucophyllus
Vernon H. Oswald; Lowell Ahart
1993-6-28
5607
Lassen
Rd. 35N04 at Aspen Well, N of Hwy 44 on the NW edge of Harvey Valley, NE of Poison Lake.
1725
Comment
UC506994
Lupinus leucophyllus
George A. Fischer and Irwin H. Johnson
1933-7-12
204
Lassen
Grass Valley.
Comment
SEINET10452640
Lupinus meionanthus
Taylor
1982-8-27
Taylor 5050
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
SEINET194955
Lupinus microcarpus var. densiflorus
A. A. Heller
1938-6-23
15219
Lassen
Along U.S. Highway 395 between Germo and Madeline.
1524
Comment
SEINET10452155
Lupinus nevadensis
Mary Susan Taylor
1982-5-29
Taylor 4567
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
RSA0005616
Lupinus onustus
Marcus E. Jones
1897-6-26
s.n.
Lassen
Susanville, Perkin's Ranch.
1463
Comment
RSA0005617
Lupinus onustus
Marcus E. Jones
1897-6-26
s.n.
Lassen
Susanville, Perkin's Ranch.
1463
Comment
UC138031
Lupinus onustus
T. S. Brandegee
1892-7-2
Lassen
Susanville
Comment
CHSC108001
Lupinus polycarpus
Lowell Ahart; John Dittes
2011-6-20
17498
Lassen
40 yards west of the stream, about 300 yards north of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin.
1520
Comment
JEPS118457
Lupinus polycarpus
Lowell Ahart, John Dittes
2011-6-20
17498
Lassen
40 yards west of the stream, about 300 yards north of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin
1520
Comment
SEINET10488918
Lupinus sellulus
Katherine L. Morris
1973-5-25
Morris 215
Lassen
Collected 2.6 mi w of susanville, on u.s. 36, In an area of pinus jeffreyi and Purshia. Intermediate to l. Confertus (?).
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
RSA0011271
Lythrum hyssopifolia
L. Ahart, John Dittes
2005-6-2
11969
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
CDA18272
Machaeranthera canescens
G. D. Barbe
1974-8-2
1937
Lassen
Long Valley; Hallelujah Junction, northwest corner of jct of US Hwy 395 and Hwy 70.
1524
Comment
RSA252467
Machaeranthera canescens var. canescens
R. F. Thorne, C. W. Tilforth
1969-9-6
39268
Lassen
C. 0.7 mi. SE of Milford, along Hwy. 395 (W. of Honey Lake).
1280
Comment
SEINET10872918
Machaerocarpus californicus
Mary Susan Taylor
1982-6-12
Taylor 4647
Lassen
T29N R10E ne/nw sec 13. Westwood quad. Aquatic in still pond on n side of West Fork of Susan River, s side of Hwy 36 at jct w/ Willow Cr Rd, 8 mi w Susanville.
Comment
SD132249
Madia elegans
G. Helmkamp
1990-9-23
A 6
Lassen
3.0 miles east of Susanville, along State Road 36.
1340
Comment
SEINET11601315
Madia elegans
Mrs. C. G. Gulling
1905-1
1530
Lassen
Big Meadows
Comment
UCD134225
Madia elegans
Malcolm A. Nobs; Galen Smith
1949-8-20
1470
Lassen
Honey Lake Valley, 1 mile south of Milford.
Comment
CAS-BOT-BC334687
Madia glomerata
David D. Keck
1930-7-23
955
Lassen
Fifteen miles west of Susan ville, Sierra Nevada
1524
Comment
CHSC44881
Madia gracilis
Lowell Ahart; John Thomas Howell
1974-7-9
525
Lassen
Along the edge of Eagle Lake Road, about 3 miles north-west of Susanville.
1584
Comment
JEPS17908
Madia gracilis
Rimo Bacigalupi with G. T. Robbins
1955-7-21
5432
Lassen
upper reaches of creek about 10 mi sw Susanville (along rd. over Diamond Mtn. ridge to Engelmine and Indian Valley); Gold Run Creek
1767
Comment
SEINET481268
Madia gracilis
N. H. Holmgren, P. K. Holmgren 9497
1980-7-4
Lassen
Observation Peak, sousth obase in upper Smoke Creek drainage, 19 km (12 miles) airline distance east-southeast of Ravendale
Comment
RSA715984
Madia minima
L. Ahart, John Dittes
2005-6-2
11940
Lassen
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
JEPS128415
Maianthemum stellatum
Catherine Bauer with Ellen Bauer Benson
2017-8-16
21
Lassen
South of Highway 44, North of Butte Lake, at Butte Creek Campground. Santa Clara Valley, National Forest Service, National Forest Campground.
Comment
CAS-BOT-BC512878
Maianthemum stellatum
Louella Bass
1973-6-17
120
Lassen
Elysian Valley
1325
Comment
CAS-BOT-BC512879
Maianthemum stellatum
Louella Bass
1973-5-25
37
Lassen
Elysian Valley
1325
Comment
SJSU10452
Maianthemum stellatum
H. L. Buckalew
1961-7-9
Lassen
spring near Blue Lake, Warner Mts
1828
Comment
POM37232
Malacothrix floccifera
Marcus E. Jones
1897-6-21
s.n.
Lassen
Chat
1616
Comment
RSA164326
Malacothrix floccifera
Clare B. Hardham
1961-6-16
7491
Lassen
Gold Run Creek south of Susanville.
Comment
CAS-BOT-BC347440
Malacothrix floccifera
Louella Bass
1983-6-2
s.n.
Lassen
On Sears Road near Janesville
Comment
HSC63963
Malacothrix sonchoides
Teresa Prendusi
1980-5-30
Lassen
Mapes Spring on hillside
1555
Comment
CHSC12430
Malva neglecta
Robert W. Severin
1969-6-25
18
Lassen
1 3/4 mi e E.L.B.S. along road to Murrer's Upper Meadow, 1/2 mi from road to station.
1584
Comment
UC1192280
Malvella leprosa
Verne Grant and Irving Schneider
1947-9-6
8386
Lassen
hot springs ca. 1 mi. w. 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
CHSC7653
Matricaria discoidea
Jesse Langdon
1969-6-3
26
Lassen
Susanville, Soil Conservation Office.
1310
Comment
SEINET3816871
Matricaria discoidea
Noel H. Holmgren, Patricia K. Holmgren
1980-7-5
9522
Lassen
Upper smoke creek drainage, 20.4 km from U.S. highway 395 via Rye Patch Canyon, 24 km airline distance southeast of Ravendale,
1580
Comment
CDA8327
Matricaria occidentalis
T. C. Fuller
1963-6-1
10617
Lassen
West side of road to Susanville, 2.0 miles south of Pittville.
0
Comment
UCD107934
Medicago sativa
P. B. Kennedy
1927-9-1
s.n.
Lassen
Standish.
Comment
UCD86379
Melica bulbosa
L. Whitney
1935-7-11
3226
Lassen
Camp 10, Fruit Grower's Supply Company. Lassen National Forest.
Comment
SEINET4671551
Melica bulbosa
H. Durio
1979-5-23
s.n.
Lassen
Adin, Meyers Ranch
Comment
UCD87291
Melica fugax
Jack Major
1966-6-24
s.n.
Lassen
Lassen County (northeastern): Long Valley, 3 miles airline southwest of Patterson Guard Station, Modoc National Forest.
Comment
CHSC1017
Mentzelia albicaulis
C. Palmiter
1946-6-13
Lassen
Spaulding's, Eagle Lake.
1554
Comment
CHSC105237
Mentzelia albicaulis
Lowell Ahart; John Dittes
2010-7-31
17019
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
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
CHSC60909
Mentzelia albicaulis
Vernon H. Oswald; Lowell Ahart
1993-7-8
5654
Lassen
Pittville Rd. (Lassen 111, 36N01) 1.9 mi N of Hwy. 44, on the SE edge of Poisen Lake.
1709
Comment
CHSC64791
Mentzelia albicaulis
Vernon H. Oswald
1995-5-31
6813
Lassen
Modoc Plateau. Smoke Creek Ranch Rd. 2.0 mi e of Hwy. 395, between Litchfield and Ravendale.
1341
Comment
CHSC7655
Mentzelia albicaulis
Beverley J. Wise
1969-5-18
66
Lassen
18.2 mi. East of Susanville on Las. Co. Rd. 216 off Las. Co. Rd. 215.
1524
Comment
JEPS107449
Mentzelia albicaulis
Lowell Ahart, John Dittes
2005-6-1
11888
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
RSA715553
Mentzelia albicaulis
L. Ahart, John Dittes
2005-6-1
11888
Lassen
On the north side of Scott Road, Long Valley, about 4.25 miles (air) north of the intersection of Scott Road and Highway 70, 5.5 miles (air) northwest of Hallelujah Junction.
1434
Comment
HSC42457
Mentzelia albicaulis
Barbara Kelly
1977-8-9
569
Lassen
On Rd. from Adin to Madeline, 10.1 mi. E of Madline.
Comment
UC124778
Mentzelia congesta
T. S. Brandegee
1893-6-23
Lassen
Honey Lake
Comment
UC1483878
Mentzelia congesta
G. Schoolcraft
1979-6-26
95
Lassen
s Buckhorn Rd.; ; SE1/4
1706
Comment
UCR244033
Mentzelia congesta
Jim Andre, G. L. Clifton
1993-6-3
19703
Lassen
Foothills of Sierra Nevada Mtns., Honey Lake Valley near Laufman Ranger Station, c. 4 mi. SSE of Milford (at U.S. 395), c. 30 mi. south of Susanville, just inside Plumas NF boundary
1477
Comment
CHSC13851
Mentzelia dispersa
J. Grove
1973-7-30
Lassen
At Sugar Pine Basin.
1524
Comment
JEPS127346
Mentzelia dispersa
Lowell Ahart, John Dittes
2016-7-13
21124
Lassen
200 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley.
Comment
UC1137741
Mentzelia dispersa
George A. Fischer, Irwin H. Johnson
F 229
Lassen
Lassen National Forest, Patterson Flat
1737
Comment
CHSC20266
Mentzelia laevicaulis
J. Pitts
1972-7-20
334
Lassen
Found on hwy 139, 10 mi n of Susanville.
Comment
HSC26603
Mentzelia veatchiana
D. H. Norris, T. Nelson, S. Dowty
1971-6-22
19284
Lassen
Along Hwy. 395 about 4 mi. E of Standish
Comment
CAS-BOT-BC428456
Micranthes aprica
1927-5-20
1
Lassen
Lassen National Forest. Norval Flat.
1747
Comment
SD8380
Micranthes bryophora
Mrs. R. M. Austin
1882-8-7
Lassen
Kings Valley
Comment
SBBG2836
Micranthes integrifolia
H. and M. Dearing
1938-6-30
2232
Lassen
Box 20 mi N of Susanville [Hwy 44]
1066
Comment
JEPS87523
Microseris 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
OBI76931
Microseris laciniata
Anthony Baniaga
2011-7-9
434
Lassen
Lassen Natl forest. SW Pine Crk Valley. Pine Crk valley quad T31N R8E sec 10 NE of NE
1715
Comment
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
CAS-BOT-BC349300
Microseris nutans
A. M. Vollmer; L. Beane
1953-7-1
53
Lassen
Along Halls Flat road, beginning 6 miles west of Susanville to McArthur
1554
Comment
OBI76978
Microseris nutans
Anthony Baniaga
2011-8-4
486
Lassen
Lassen Natl Forest. About 1/2 mi WNW of Griffith Hill along 30N21. Swain Mtn quad. T30N R8E sec 8 NE of NW
1907
Comment
CHSC29930
Microsteris gracilis
Robin L. Ondricek
1978-6-20
65
Lassen
Callatin Burn, 1.8 mi s of Five Corners.
2011
Comment Read comments Jan 31 2011
SD62167
Miltitzia lutea
Rimo Bacigalupi, G. T. Robbins
1955-7-21
5429
Lassen
Southeastern part of Secret Valley, along Smoke Creek Ranch Road, 8.0 miles east of U. S. Highway 395.
1402
Comment
CDA41658
Mimulus breviflorus
S. E. Schoenig
1998-7-5
98 -71
Lassen
East side of Poison Lake, 50 meters west of Pitville Road, 1.8 miles northwest of Highway 44, east of railroad track and wet ditch.
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
JEPS4710
Mimulus floribundus
A. A. Heller
1938-6-22
15185
Lassen
1 mi s Westwood
1524
Comment
RSA716144
Mimulus floribundus
L. Ahart, John Dittes
2005-6-2
11970
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
UC125195
Mimulus layneae
Baker and Nutting
Lassen
Big Valley
Comment
UC1523772
Mimulus moniliformis
Gary Schoolcraft
1981-6-25
475
Lassen
Comment
HSC22944
Mimulus nanus var. mephiticus
John Pratt
1970-6-27
47
Lassen
0.5 mi. E of Turtle Head
1220
Comment Read comments Jul 9 2013
POM181073
Mimulus nanus var. mephiticus
A. A. Heller, P. B. Kennedy
1907-7-1
8672
Lassen
Near Old Chat.
Comment
POM297719
Mimulus nanus var. mephiticus
A. A. Heller, P. B. Kennedy
1907-7-1
8672
Lassen
Near Old Chat.
Comment
HSC95323
Mimulus primuloides var. primuloides
Gordon Leppig, Tony LaBanca
1997-6-28
516
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
UC726696
Mimulus pulsiferae
A. A. Heller
1938-6-22
15187
Lassen
one mi e Westwood
1524
Comment
UC1523779
Minuartia douglasii
Gary Schoolcraft
1981-6-9
440
Lassen
s Pittville
1249
Comment
CAS-BOT-BC221780
Monardella odoratissima
Gordon H. True
1936-6-27
552
Lassen
Between Bull Flat and Hot Spring Mt.
1524
Comment
CAS-BOT-BC221972
Monardella odoratissima subsp. glauca
John Thomas Howell
1934-6-10
11888
Lassen
12 miles n. of Susanville on road to Horse Lake
Comment
UC1537599
Monardella odoratissima subsp. pallida
Gordon H. True Jr.
1938-7-14
961
Lassen
Just north of summit Milford Grade
1767
Comment
UC506977
Monardella odoratissima subsp. pallida
George A. Fischer, Irwin H. Johnson
1933-7-12
F 225
Lassen
Lassen Forest
1722
Comment
JEPS122366
Monardella sheltonii
Joseph Broberg, Jaycee Leonard
2012-8-27
CA 320 -127
Lassen
From Alturas head South on Highway 395. At the town of Likely turn left onto county road 64, and continue to Jess Valley. Turn right at fork onto county road 258. Continue past Blue Lake, and turn onto Clark Valley road. Collection site is just after border between BLM and USFS land. South of aspen stand
Comment
HSC14280
Monardella villosa
D. E. Anderson
1963-8-25
2800
Lassen
3 mi. N of Cromberg along Hwy. Alt 40
1372
Comment
JEPS124376
Monolepis nuttalliana
Lowell Ahart, John Dittes
2015-7-13
20311
Lassen
Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
Comment
JEPS95874
Monolepis nuttalliana
Vernon H. Oswald and L. Ahart
1999-6-9
9754
Lassen
Northeast of Susanville and 3.8 mi south of Biscar Wildlife Management Area on BLM 26030: T31N R15E Sect. 31, 4420 ft elevation, sagebrush scrub
1347
Comment
UC526137
Monolepis pusilla
John Thomas Howell
1934-6-10
11895
Lassen
Horse Lake
Comment
UCR244049
Monolepis pusilla
Jim Andre
1993-6-1
19719
Lassen
Sierra Nevada/Great Basin, Honey Lake Valley, north end of Honey Lake, c. 20 mi. E of Susanville, at Wendel
1218
Comment
NY497728
Montia chamissoi
G. Schoolcraft
1993-6-1
2272
Lassen
Upper Secret Creek, south of Tule Patch Spring
1463.0
Comment
UC1567410
Montia chamissoi
G. Schoolcraft
1989-7-18
1983
Lassen
near Buck's Spring (s of Clark's Valley Road)
1874
Comment
POM312351
Montia chamissoi
Malcolm A. Nobs, S. Galen Smith
1949-7-21
1064
Lassen
Lassen County: Shallow marshy stream from springs, 4 miles N of Madeline
Comment
JEPS107818
Montia linearis
Lowell Ahart, John Dittes
2005-6-2
11956
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
UC1924586
Montia linearis
Debra Valov
2006-5-28
2006016
Lassen
Bieber off County Rd A2 c. 8 km east of Hwy 299
1271
Comment
CAS-BOT-BC445066
Montia linearis
Louella Bass
1973-4-23
27
Lassen
Elysian Valley.
1325
Comment
RSA129317
Muhlenbergia asperifolia
H. S. Yates
1936-8-11
6059
Lassen
Near Red Rock.
1341
Comment
UCD86562
Muhlenbergia asperifolia
R. Tofsrud
1947-7-1
227
Lassen
Between Johnstonville and Standish.
Comment
CAS-BOT-BC260598
Muhlenbergia filiformis
John Thomas Howell; Gordon H. True; Margaret Williams
1973-6-28
49495
Lassen
Elysian Valley, W of Janesville
1325
Comment
JEPS28280
Muhlenbergia filiformis
J. T. Howell
1957-7-28
940
Lassen
marsh near west end of Widow Lake; Lassen Volcanic National Park
2072
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
RSA256329
Muhlenbergia jonesii
J. R. Reeder, C. G. Reeder
1973-5-23
6170
Lassen
25 miles NW of Susanville along Hwy 44 in Lassen Nat'l Forest
1738
Comment
CAS-BOT-BC275084
Muhlenbergia richardsonis
G. Schoolcraft
1999-6-30
2852
Lassen
Small res. 1 mile W of Horne Ranch, 12 miles E of Ravendale
1645
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
UC506980
Muhlenbergia richardsonis
George A. Fischer and Irwin H. Johnson
1933-7-12
F 224
Lassen
Stringer Mdw. Lassen National Forest
1722
Comment
UCD86955
Muhlenbergia richardsonis
Malcolm A. Nobs; S. Galen Smith
1949-7-21
1060
Lassen
4 miles N of Madeline.
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
UC1567382
Muilla transmontana
G. Schoolcraft
1989-5-3
1863
Lassen
Susanville NW corner of Secret Valley near Karlo.
1356
Comment
HSC63965
Muilla transmontana
Teresa Prendusi
1980-5-8
Lassen
Balls Canyon N of Shaffer Mtn. 6 mi. W of Hwy. 395
1372
Comment
UC1609242
Myosurus apetalus
Vernon H. Oswald and Lowell Ahart
1993-7-8
5651
Lassen
1.9 mi n ow Hwy 44, on se edge of Poison Lake (Pittville Road)
1709
Comment
UC1608993
Myosurus apetalus
Vernon H. Oswald and Lowell Ahart
1993-5-12
5392
Lassen
0.6 mi e Shasta County Line (n side of Hwy 44, between Old Station and Poison Lake)
1645
Comment
OBI76991
Myosurus apetalus var. borealis
Anthony Baniaga
2011-6-10
325
Lassen
Lassen/Modoc County. On the S side of Hwy 299, ca. 1.2 mi E of Lassen County rd 428.
1295
Comment
JEPS97413
Myosurus minimus
Vernon H. Oswald and L. Ahart
1995-6-19
6895
Lassen
T30N R16E southeast corner Sect. 6, 4540 ft, Modoc Plateau, Sagebrush Scrub. Between Litchfield and Ravendale on Smoke Creek Ranch Rd., 4.9 mi e of Hwy. 395. Abundant on the drying beds of vernally flooded wetlands on a stony and brushy flat.
1383
Comment
NY492693
Myosurus minimus
P. H. Raven
1958-6-17
13285
Lassen
Along U. S. Highway 395, 1.9 miles south of Ravendale
Comment
RSA338411
Myriophyllum spicatum
Robert F. Thorne, C. W. Tilforth
1969-9-5
39132
Lassen
Said Valley Reservoir, near junction of Termo-Grasshopper Rd. & Hwy 139.
1433
Comment
CHSC29925
Navarretia breweri
Robin Ondricek
1978-6-7
41
Lassen
Murrers Upper Meadow, .7 mi E of intersection with main road to ELFS and tunnel crossing.
1560
Comment
CHSC89734
Navarretia breweri
L. P. Janeway
2004-6-26
8143
Lassen
High Cascade Range. Halls Flat; about 0.3 km east of Road 33N13 3.5 km north of junction of Road 33N18.
1714
Comment
JEPS19815
Navarretia breweri
Rimo Bacigalupi with S. Galen Smith
1957-6-28
5991 -a
Lassen
7 mi n Madeline (about 1 mi n of Sage Hen siding on S.P Railroad, just e of U.S. Highway 395)
1676
Comment
UC1184057
Navarretia breweri
Jean Langenheim
1957-6-22
4365
Lassen
Said Valley Reservoir, ne part of Lassen County Said Valley Reservoir
Comment
HSC23507
Navarretia breweri
W. Lessig
1967-7-1
11
Lassen
10 mi. N of Susanville on Hwy. 139
1829
Comment
CHSC1241
Navarretia capillaris
1944-6-30
Lassen
Grasshopper Valley, N. of Eagle Lake.
1615
Comment
SEINET200215
Navarretia divaricata
C. McMillan
1949-6-15
1541
Lassen
Five miles west of Bieber
Comment
UC1137719
Navarretia divaricata
L. R. Short and Wm. Gansberg
1936-7-3
S- 473
Lassen
Burgess Spr. Exp. Range Lassen Forest
1844
Comment
CHSC23850
Navarretia divaricata subsp. vividior
K. R. Stern
1974-6-22
5850 B
Lassen
E side of Hwy. 139, ca. 2 mi s of Termo-Grasshopper Road and ca. 44 mi n of Susanville.
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
JEPS121309
Navarretia intertexta subsp. intertexta
Lowell Ahart, John Dittes
2013-7-22
18869
Lassen
10 yards S of the man-made pond, about 140 yards N of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley.
Comment
UCD48456
Navarretia intertexta subsp. propinqua
G. L. Stebbins Jr.
1949-8-6
4001
Lassen
Hog flat, NW of Susanville.
1676
Comment
CHSC6202
Navarretia leptalea
J. B. Kimsey
1946-6-26
Lassen
Pine Creek, Eagle Lake.
1615
Comment
CHSC27670
Navarretia leptalea subsp. bicolor
Robert A. Schlising
1978-7-9
3312
Lassen
South of Eagle Lake. Area between Papoose Meadows and Eagle Lake Road.
Comment
CHSC23853
Navarretia leucocephala subsp. minima
Glenda Foster
1975-7-12
100
Lassen
At margins of Poison Lake, along road to Pitville, ca. 0.2 mi from Hwy. 44, past railroad tracks.
Comment
HSC82246
Navarretia leucocephala subsp. minima
Thomas W. Nelson, Jane P. Nelson
1980-7-6
5986
Lassen
Along Adin-Madelin Rd., 16 mi. E of Adin in Ash Valley
1555
Comment
JEPS120031
Navarretia leucocephala subsp. minima
Lowell Ahart, John Dittes
2012-7-9
18288
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
JEPS127174
Navarretia leucocephala subsp. minima
Lowell Ahart, John Dittes
2016-7-15
21213
Lassen
Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
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
UC1137583
Navarretia linearifolia subsp. linearifolia
A. Simontacchi
1940-6-4
803
Lassen
7.0 mi sw Jacks Lake; Lassen National Forest, Halls Flat Quadrangle
Comment
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
UC1184061
Navarretia linearifolia subsp. linearifolia
Jean Langenheim
1957-6-22
4368
Lassen
Said Valley Said Valley (northeastern part Lassen County)
Comment
SEINET10972223
Nemacladus capillaris
Hardham
1961-6-16
HARDHAM 7450
Lassen
Gold Run Creek south of Susanville
Comment
POM68111
Nemacladus sigmoideus
Marcus E. Jones
1897-6-18
s.n.
Lassen
Chat.
1524
Comment
CAS-BOT-BC231218
Nemophila parviflora var. austiniae
Philip A. Munz
1947-5-18
11860
Lassen
Fredonyer Forest Campground on Highway 36, W of Susanville
1508
Comment
RSA38472
Nemophila parviflora var. austiniae
P. A. Munz
1947-5-18
11860
Lassen
Fredonyer Forestry Public Camp Ground. W of Susanville.
1509
Comment
SEINET5521095
Nemophila pedunculata
N. H. Holmgren, P. K. Holmgren
1978-6-11
8911
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
CHSC106075
Nicotiana attenuata
Lowell Ahart; John Dittes
2010-7-31
17022
Lassen
On the north side of the road, about 40 yards west 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
CHSC5920
Nicotiana attenuata
J. B. Kimsey
1946-6-17
Lassen
Eagle Lake. Horse Lake.
1554
Comment
UC1037191
Nicotiana attenuata
Leo Whitney
1933-8-22
1500
Lassen
base of Harvey Mountain; Lassen National Forest
1889
Comment
UC1191768
Nicotiana attenuata
Verne Grant and Irving Schneider
1947-8-1
8235
Lassen
e end Tule Lake
Comment
HSC42424
Nicotiana attenuata
Barbara Kelly
1977-8-9
557
Lassen
20 mi. E Madeline on dirt road from Adin. 1 mi. E of 10 ton limit bridge over wash
Comment
JEPS124603
Nicotiana attenuata
G. R. Ostrander
1965-7-12
256
Lassen
Growing along U. S. 395 15 miles N. of the junction of Calif. 70 & U. S. 395.
Comment
CDA18261
Nothocalais alpestris
G. D. Barbe
1974-8-2
1923
Lassen
Long Valley; Hallelujah Junction, northwest corner of jct of US Hwy 395 and Hwy 70.
1524
Comment
JEPS94115
Nothocalais troximoides
Vernon H. Oswald and Lowell Ahart
1998-5-22
9097
Lassen
ca. 3 mi. n. Doyle (Hackstaff Rd. 1.0 mi. s. of Laver Crossing Rd., 0.2 mi. n. of Fort Sage Rd.)
1316
Comment
CDA20352
Oenothera alyssoides var. villosa
D. Tillotson
1942-6-1
s.n.
Lassen
Modoc Plateau; Mud Flat Grade.
0
Comment
HSC31754
Oenothera cespitosa var. marginata
Donald Spalinger
1974-5-16
65
Lassen
E of Hurlong in the Doyle Winter Deer Range
1220
Comment
JEPS124836
Oenothera deltoides
Laurie Hooker
1965-7-12
106
Lassen
2.6 miles past Milford on Highway 395.
Comment
JEPS124837
Oenothera deltoides
J. Yamanaka
1965-7-12
122
Lassen
U. S. Highway 395, 2.6 miles N. of Milford Sandy soil.
Comment
NY998638
Oenothera deltoides var. piperi
W. W. Eggleston
1911-9-3
7705
Lassen
Vicinity of Doyle Station
1290
Comment
SEINET5345661
Oenothera deltoides var. piperi
M. J. Williams
1968-6-1
s.n.
Lassen
Near Doyle
1372
Comment
SEINET5345714
Oenothera deltoides var. piperi
P. B. Kennedy
1901-6-10
s.n.
Lassen
R.R. Station, Constantia
Comment
CHSC4767
Oenothera elata subsp. hirsutissima
R. Carter
1967-7-16
621
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
UC1186545
Oenothera elata subsp. hirsutissima
J. W. MacSwain
1959-8-12
59 -147
Lassen
2 mi n Bridge Camp; Hat Creek
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
CAS-BOT-BC350042
Oreostemma alpigenum var. andersonii
Hans Leschke
1958-9-30
1571
Lassen
Lassen Volcanic National Park. Grassy Swales
1935
Comment
UC831401
Oreostemma alpigenum var. andersonii
A. A. Heller
1937-9-1
15343
Lassen
1 mi e Westwood
1524
Comment
CAS-BOT-BC350041
Oreostemma alpigenum var. andersonii
Hans Leschke
1959-8-3
1595
Lassen
Lassen Volcanic National Park. Grassy Swales
1935
Comment
SEINET5766936
Orobanche corymbosa
F. B. Headley
1915-5-28
s.n.
Lassen
Honey Lake
Comment
CAS-BOT-BC500270
Orobanche uniflora subsp. occidentalis
Doris Kildale Gillespie
1930-5-13
9368
Lassen
Between Susanville and Janesville
Comment
RSA408800
Orthocarpus
Rockwell
1925-7-1
s.n.
Lassen
Eagle Lake
Comment
UCD23273
Orthocarpus bracteosus
Louis K. Mann; Pat Mann
1963-6-18
s.n.
Lassen
On State Highway 139 from Susanville to Adin, 11.8 miles north of Junction to Termo.
Comment
UCD18956
Orthocarpus cuspidatus subsp. copelandii
Raymond D. Ratliff
1965-7-17
21
Lassen
Lassen National Forest, Lyon's hgd., Harvey Valley Allot.
1706
Comment
CHSC60858
Orthocarpus cuspidatus subsp. cryptanthus
Vernon H. Oswald; Lowell Ahart
1993-6-28
5604
Lassen
Rd. 35N04 at Aspen Well, N of Hwy 44 on the NW edge of Harvey Valley, NE of Poison Lake.
1725
Comment
UC1537445
Orthocarpus cuspidatus subsp. cryptanthus
Gordon H. True Jr.
1936-6-25
526
Lassen
e Harvey Ranger Station (Harvey Valley); Harvey Valley
1706
Comment
RSA337231
Orthocarpus hispidus
Noel Holmgren, Patricia K. Holmgren
1980-7-3
9483
Lassen
US Highway 395, 7.4 km (4.6 mi) S of Ravendale.
1620
Comment
RSA715624
Orthocarpus hispidus
L. Ahart, John Dittes
2005-6-1
11902
Lassen
North side of Scott Road, east side of the railroad underpass, Long Valley, about 4 3/4 mile (air) north of the intersection of Scott Road and Highway 70, 6.2 miles (air) northwest of Hallelujah junction.
1460
Comment
JEPS98391
Oryzopsis exigua
Vernon H. Oswald, G. Schoolcraft, M. Dolan, and B. Corbin
2000-6-18
9929
Lassen
E of Ravendale (E-NE of the lookout on Observation Peak)
2377
Comment
UC1776707
Osmorhiza occidentalis
G. Schoolcraft
1994-7-7
2447
Lassen
About 1 mile W of Boot Lake
2407
Comment
RSA78899
Oxytheca dendroidea
E. K. Balls, Percy C. Everett
1952-10-10
18140
Lassen
5.5 miles NE of Litchfield, Hwy 395, between Susanville and Alturas
1280
Comment
CAS-BOT-BC316858
Packera eurycephala var. eurycephala
C. C. (Mrs.) Bruce
1898-6-1
2176
Lassen
Shumway
Comment
CAS-BOT-BC316859
Packera eurycephala var. eurycephala
Michael A. Vincent
1999-6-9
8581
Lassen
Along US Rte. 395, south of Ravendale Fire Station, 1.8 miles north of rest area, and 24.8 miles north of Litchfield.
1524
Comment
CAS-BOT-BC317057
Packera multilobata
Louella Bass
1982-5-30
s.n.
Lassen
Hillside near Biscar dam, Karlo Road northeast of Susanville
Comment
UC187441
Packera streptanthifolia
T. S. Brandegee
1892-6-26
Lassen
Milford
Comment
POM99654
Paeonia brownii
Marcus E. Jones
1897-6-19
s.n.
Lassen
Chat.
1616
Comment
RSA59891
Paeonia brownii
E. K. Balls
1950-5-19
14774
Lassen
Above Ash Creek Public Camp, off rd. from Adin to Madeline
1585
Comment
CAS-BOT-BC253718
Panicum capillare
John Thomas Howell
1973-7-10
49795
Lassen
In city park, Susanville
1295
Comment
CAS-BOT-BC253719
Panicum capillare
Arnold Tiehm
1980-5-29
5759
Lassen
Amedee Hot Springs, N end of Honey Lake Valley, 4 air miles SE of Wndel
1220
Comment
NY1092251
Panicum capillare
A. Tiehm
1980-5-29
5759
Lassen
Amedee Hot Springs, north end of Honey Lake Valley, 4 air miles SE of Wendel.
1220
Comment
RSA647577
Pascopyrum smithii
Marion P. Harthill
1972-6-16
780
Lassen
Doyle
1372
Comment
CHSC68873
Pectiantia pentandra
Vernon H. Oswald; Lowell Ahart
1997-6-24
8615
Lassen
South of Susanville on the north side of Diamond Mtn. at a springy slope with streamlets along Forest Rd. 29N43, 5.4 miles east of Gold Run Rd. (29N10), 0.7 mi east of Lassen NF boundary.
1889
Comment
SEINET10456341
Pectocarya penicillata
Douglas G. LeDoux, David B. Dunn
1973-5-25
LeDoux 874
Lassen
Collected 3 mi N of Milford on Hwy 395 at Honey Lake campgrounds.
Comment
JEPS97422
Pectocarya setosa
Vernon H. Oswald and L. Ahart
1995-6-19
6892
Lassen
T30N R16E NW1/4 NW1/4 Sect. 7, 4540 ft, Modoc Plateau, Sagebrush Scrub. Between Litchfield and Ravendale on Smoke Creek Ranch Rd., 4.0 mi e of Hwy. 395
1383
Comment
UC1523781
Pedicularis semibarbata
G. Schoolcraft
1981-6-30
487
Lassen
western slopes of Roop Mountain
1889
Comment
UC1713528
Pedicularis semibarbata
Leo Whitney
1935-6-19
3270
Lassen
Camp 10, Fruit Grower's Supply company Camp 10; Lassen National Forest
Comment
UC2042972
Pedicularis semibarbata
Barbara Ertter
1990-5-13
8965
Lassen
McCoy Road N of Westwood, 3 mi from junction with A21, ca. 6 air miles N of Westwood.
Comment
UCD18965
Pedicularis semibarbata
Raymond D. Ratliff
1965-8-4
49
Lassen
Lassen National Forest, Harvey Valley Allotment (HV 19-13).
1767
Comment
SD77352
Penstemon deustus
Francis W. Pennell
1940-6-7
25722
Lassen
Route 299, 11 miles west of Nubieber
1096
Comment
POM252931
Penstemon deustus subsp. sudans
A. A. Heller
1938-6-23
15194
Lassen
East of Fredonyer Pass on Hwy 36.
1646
Comment
CHSC4272
Penstemon deustus var. pedicellatus
K. R. Stern
1967-6-24
2426
Lassen
Murrer Meadow Road, ca. 3 mi. E of Eagle Lake Biological Station.
1554
Comment
JEPS29103
Penstemon deustus var. pedicellatus
Lauramay T. Dempster
1961-6-17
1679
Lassen
Highway 395 just w Tule Mt.; just w of Tule Mt.
1645
Comment
UC477496
Penstemon deustus var. pedicellatus
A. G. Brenneis
1928-7-3
12
Lassen
Jesson Valley Lassen Forest, Jesson Valley
1463
Comment
JEPS11274
Penstemon gracilentus
Brown and Wieslander
1922-7-23
43
Lassen
Martin Sprs , Martin Sprs (Eagle Lake)
Comment
RSA746506
Penstemon gracilentus
K. M. Meyer, A. Townesmith
2007-7-23
157
Lassen
Lassen National Forest. 3.9 miles SW on 32N10 off hwy. 44. (turn at rest area).
1900
Comment
NY600697
Penstemon gracilentus
K. A. Vincent
1986-7-19
4382
Lassen
Sierra Nevada, Roop Mountain; along CA A1 at Eagle Lake Summit, ca. 7.6 miles north of junction CA 36, ca. 7 air miles northwest of Susanville.
1932.4
Comment
SEINET272361
Penstemon gracilentus
Karl Vincent, Charlott Labbe
1986-7-19
4382
Lassen
Sierra Nevada Roop Mtn.; common in burned area in pine-spruce forest along CA A1 at Eagle Lake Summit ca 7.6 mi N of j
1932
Comment
UC1537429
Penstemon laetus
Gordon H. True Jr.
1936-6-25
530
Lassen
e Harvey Ranger Station (Harvey Valley); , e of Harvey Ranger Station
1767
Comment
UCD124278
Penstemon laetus
Beecher Crampton
1964-6-26
7082
Lassen
ca. 32 miles northwest of Susanville west end of Harvey Valley.
Comment
POM252805
Penstemon neotericus
A. A. Heller
1938-6-22
15181
Lassen
1 mile S of Westwood.
Comment
SEINET11262116
Penstemon neotericus
Karl A. Vincent
1987-8-5
4499
Lassen
Sierra Nevada, Roop Mtn. Along CA A1 ca 4 mi NW of jct CA 36, site ca 6 air mi WNW of Susanville.; 0
1737
Comment
NY627269
Penstemon neotericus
C. B. Wolf
1937-8-7
9068
Lassen
Northern Sierra Nevada, Red Bluff-Susanville Road, 11.5 miles east of Chester
1493.5
Comment
POM147859
Penstemon neotericus
J. B. Feudge
1927-7-20
1768
Lassen
Westwood.
Comment
CAS-BOT-BC239221
Penstemon newberryi var. berryi
Clare B. Hardham
1969-8-28
17449
Lassen
West of Janesville
Comment
JEPS7416
Penstemon roezlii
A. A. Heller
1938-6-23
15195
Lassen
on Highway #36, 2 mi e Fredonyer Pass; e of Fredonyer Pass
1645
Comment
JEPS94531
Penstemon roezlii
Vernon Oswald and Lowell Ahart
1997-6-24
8623 .1
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
NY650095
Penstemon roezlii
N. H. Holmgren
1980-7-5
9523
Lassen
Upper Smoke Creek drainage, 21.9 km (13.6 miles) from U.S. Highway 395 via Rye Patch Canyon, 24 km (15 miles) airline distance southeast of Ravendale.
1580
Comment
POM195122
Penstemon roezlii
D. D. Keck
1930-7-23
954
Lassen
12 miles west of Susanville.
1677
Comment
RSA339998
Penstemon roezlii
Noel Holmgren, Patricia K. Holmgren
1980-7-5
9523
Lassen
Upper Smoke Creek drainage, 21.9 km (13.6 mi) from US Hwy 395 via Rye Patch canyon, 24 km (15 mi) airline distance southeast of Ravendale.
1585
Comment
NY641729
Penstemon roezlii
A. J. Cronquist
1959-6-17
8470
Lassen
50 miles southeast of Susanville.
1371.6
Comment
NY650103
Penstemon roezlii
J. T. Howell
1974-7-30
50689
Lassen
Slope south and southeast of Diamond Mountain
2225.0
Comment
SEINET226061
Penstemon roezlii
M. Lavin
1982-5-30
4122
Lassen
E of Hallelujah Junction 22 air mi NW of Reno W side of Petersen Mtns
1676
Comment
CAS-BOT-BC239498
Penstemon rydbergii var. oreocharis
John Thomas Howell
1976-7-20
s.n.
Lassen
Bottom flats along Willard Creek near its confluence with Susan River, about 5 miles west of Fredonyer Pass
1432
Comment
CAS-BOT-BC239499
Penstemon rydbergii var. oreocharis
Francis W. Pennell
1940-6-10
25774
Lassen
Route 36, road to Coppervale R.S., E. of Westwood
1493
Comment
CHSC1878
Penstemon rydbergii var. oreocharis
K. Chew
1954-7-6
Lassen
Along Pine Creek, 1 mi. below Stephens meadows.
1828
Comment
CHSC30576
Penstemon rydbergii var. oreocharis
Sori H. Shad
1970-7-9
41
Lassen
North east edge of Meadow.
1584
Comment
CHSC4754
Penstemon rydbergii var. oreocharis
R. Carter
1967-7-14
612
Lassen
Hog Flat Reservoir, between highway 92 and shore of reservoir.
Comment
JEPS79151
Penstemon rydbergii var. oreocharis
L. R. Heckard with R. C. Bacigalupi
1980-6-12
5256
Lassen
large meadow just ne Westwood (near golf course); ne of Westwood
1554
Comment
POM252929
Penstemon rydbergii var. oreocharis
A. A. Heller
1938-6-22
15182
Lassen
Along Hwy 36, 1 mile east of Westwood.
1524
Comment
SBBG66488
Penstemon rydbergii var. oreocharis
S. W. Hutchinson
-Jun-1925
1088
Lassen
Eagle Lake
1554
Comment
SBBG7130
Penstemon rydbergii var. oreocharis
H. and M. Dearing
1938-7-1
2239 c
Lassen
12 mi W of Susanville
Comment
UC54980
Penstemon rydbergii var. oreocharis
J. B. Davy
Lassen
Amedee
Comment
UC696713
Penstemon rydbergii var. oreocharis
A. A. Heller
1938-6-23
15193
Lassen
about 4 mi e Westwood; e of Westwood
1432
Comment
CHSC12411
Penstemon speciosus
Lynn R. Thomas
1969-6-20
135
Lassen
Just above Deans Meadow, ca. 6 mi. s of E. L. B. S.
2011
Comment
CHSC60780
Penstemon speciosus
Vernon H. Oswald; Lowell Ahart
1993-6-14
5531
Lassen
Eagle Lake Rd. (Lassen A1) at Sandy Beach on the W shore of Eagle Lake, ca. 2.0 mi ENE of Spaulding Tract Rd. (Rd. 518, 33N89).
1566
Comment
POM44291
Penstemon speciosus
Marcus E. Jones
1897-6-28
s.n.
Lassen
Top of Diamond Mt., Susanville, Perkin's Ranch.
2226
Comment
RSA121810
Penstemon speciosus
L. R. Short, J. Warren
1936-6-26
S- 357
Lassen
Burges Spr. Exp. Range.
1845
Comment
RSA401878
Penstemon speciosus
Rockwell
1925-07
s.n.
Lassen
Eagle Lake.
Comment
SBBG26872
Penstemon speciosus
D. D. Keck
1930-7-23
50
Lassen
Susanville
1280
Comment
UC1583941
Penstemon speciosus
G. Schoolcraft
1990-7-2
2100
Lassen
sw slopes of Cold Spring Mtn.
1889
Comment
UC423671
Penstemon speciosus
David D. Keck
1930-7-23
950
Lassen
Susanville Sierra Nevada, Susanville
1280
Comment
UC506982
Penstemon speciosus
George A. Fischer and Irwin H. Johnson
1933-7-12
F 220
Lassen
Lassen National Forest
1706
Comment
UCR183192
Penstemon speciosus
Jim Andre, G. L. Clifton
1993-5-28
7713
Lassen
Along Hwy 395 c. 25 mi. NE of Susanville at Viewland exit, NE of Shaffer Mtn
1349
Comment
NY661063
Penstemon speciosus
D. D. Keck
1935-6-25
3768
Lassen
Ca. 2 miles west of Westwood on road to Chester at Co. line.
Comment
RSA38458
Penstemon speciosus
Philip A. Munz
1947-5-19
11877
Lassen
Hwy 395, 3.5 miles S of Ravendale.
1616
Comment
SEINET5329894
Penstemon speciosus
F. B. Headley
1915-5-28
3
Lassen
Honey Lake
Comment
CAS-BOT-BC239666
Penstemon sudans
John Thomas Howell
1974-7-9
50479
Lassen
Between Susanville and SW end of Eagle Lake
1828
Comment
CAS-BOT-BC243410
Penstemon sudans
David D. Keck
1930-7-23
953
Lassen
Four miles west of Susanville, Sierra Nevada
1463
Comment
CHSC23482
Penstemon sudans
Wayne O. Baum
1971-7-9
71 -86
Lassen
E slope of Gallatin Peak.
2072
Comment
CHSC68885
Penstemon sudans
Vernon Oswald; Lowell Ahart
1997-6-24
8599
Lassen
South of Susanville on the north side of Diamond Mtn. on Forest Rd. 29N43, 1.2 miles east of Gold Run Rd. (29N10).
1685
Comment
NY661800
Penstemon sudans
H. D. D. Ripley
1943-6-13
5739
Lassen
West of Susanville
1371.6
Comment
NY661802
Penstemon sudans
W. W. Eggleston
1911-7-7
7177
Lassen
Secret Valley
1330
Comment
UC1012466
Penstemon sudans
Francis W. Pennell
1940-7-23
26253
Lassen
Route 36 w Susanville; 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
UCD55297
Penstemon sudans
Ellen Dean; Gary Schoolcraft
2006-5-16
3118
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.
1283
Comment
NY763152
Penstemon venustus
K. A. Vincent
1987-6-25
4436
Lassen
Sierra Nevada, southeast side of Fredonyer Butte; along north side of CA 36 ca. 11.5 miles WSW of Susanville, east of Fredonyer Pass
1585.0
Comment
SEINET258696
Penstemon venustus
K. A. Vincent
1987-6-25
4436
Lassen
SE side Fredonyer Butte rdbank along N side CA 36 ca 11 mi WSW of Susanville E of Fredonyer Pass
1585
Comment
RSA0065395
Perideridia bolanderi
M. P. Harthill
1971-6-21
230
Lassen
Ravendale.
Comment
UC1004694
Perideridia bolanderi subsp. bolanderi
R. C. Bechtel
1954-7-12
Lassen
Bridge Creek Camp
Comment
UC1137777
Perideridia bolanderi subsp. bolanderi
George A. Fischer and Irwin H. Johnson
1933-7-12
F 210
Lassen
Grass Valley Lassen National Forest
1722
Comment
UC1567445
Perideridia bolanderi subsp. bolanderi
G. Schoolcraft
1989-5-31
1889
Lassen
Skedaddle Ranch Rd. about 6 mi n Wendel Road
1493
Comment
SEINET10545980
Perideridia bolanderi subsp. bolanderi
Paul Gallian, David B. Dunn
1971-6-2
Gallian 464
Lassen
6 mi. N of Hallelujah Jct. on U.S. Hwy 395, in Artemisia tridentata, Pinyon pine, Jeffery pine along high ridge and in sandy wash.
1402
Comment
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
HSC103609
Perideridia parishii
Thomas W. Nelson, Jane Nelson
1985-8-10
8003
Lassen
Along north side of Silver Lake
1829
Comment
OBI77201
Persicaria amphibia
Anthony Baniaga
2011-7-23
517
Lassen
Lassen NF. Poison Lake. Poison Lake quad T32N R7E sec 4
1707
Comment
SJSU10648
Persicaria amphibia
H. L. Buckalew
1961-7-8
Lassen
Blue L, Warner Mts
1828
Comment
CAS-BOT-BC7522
Phacelia adenophora
Elmer Ivan Applegate
1897-6-3
895
Lassen
Madeline Plains
Comment
CHSC7682
Phacelia adenophora
Beverley J. Wise
1969-5-3
49
Lassen
6.1 mi. junction with Hwy 395 on Las. Co. Rd. 338.
1615
Comment
JEPS17754
Phacelia adenophora
Rimo Bacigalupi with G. T. Robbins
1955-7-21
5429
Lassen
along Smoke Creek Ranch rd 8 mi e U.S. Hwy. 395 (se part of valley); Secret Valley
1402
Comment
JEPS27119
Phacelia adenophora
Lauramay T. Dempster
1961-6-17
1678
Lassen
about 8 mi n Karlo road junction with Hwy. 395
1584
Comment
RSA38634
Phacelia adenophora
P. A. Munz
1947-5-19
11879
Lassen
Highway 395, 4 miles south of Madeline.
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
UCD120257
Phacelia adenophora
Arnold Tiehm; Margaret Williams, Jan Nachlinger
1988-6-2
11701
Lassen
South side of Shaffer Mt., 3.4 road miles north of the Wendel road on highway 395 from Susanville to Alturas.
1386
Comment
POM252966
Phacelia adenophora
A. A. Heller
1938-6-23
15210
Lassen
Midway between Mapes and Secret Valley on Hwy 395.
1372
Comment
RSA83071
Phacelia adenophora
Verne Grant, Alva Grant
1947-8-1
8225
Lassen
On dike of irrigation ditch southwest of Madeline.
Comment
RSA715550
Phacelia bicolor
L. Ahart, John Dittes
2005-6-1
11886
Lassen
On the north side of Scott Road, Long Valley, about 4.25 miles (air) north of the intersection of Scott Road and Highway 70, 5.5 miles (air) northwest of Hallelujah Junction.
1434
Comment
CHSC48469
Phacelia glandulifera
Vernon Oswald
1986-5-28
2056
Lassen
Road 201 on the w side of Eagle Lake, 28.7 mi n of Hwy 36, 6.8 mi sw of Hwy 139.
1584
Comment
SEINET10935993
Phacelia hastata
Mary Susan Taylor
1974-1
Taylor 274
Lassen
Vicinity of Eagle Lake, ca. 13 mi NW of Susanville.
Comment
CDA40427
Phacelia hastata subsp. compacta
L. Ahart, J. Dittes
2005-6-2
11950
Lassen
Along a poor dirt road, about 1 mile northeast of the Anderson Ranch home, Long Valley, about 5 1/2 miles (air) north of the intersection of Scott Road and Highway 70, 6.7 miles (air) northwest of Hallelujah Junction.
Comment
RSA0093392
Phacelia hastata var. hastata
Jim M. Andre, Tasha La Doux, Senna Andre, 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.
1732
Comment
CHSC66390
Phacelia heterophylla subsp. virgata
Vernon H. Oswald; Lowell Ahart
1996-6-17
7776
Lassen
Modoc Plateau. Biz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy.36 ca. 7 mi W of Susanville. Locally abundant along the trail and on brushy slopes at the bridge spanning the Susan River on the N side of Hwy. 36.
1432
Comment
JEPS107814
Phacelia heterophylla subsp. virgata
Lowell 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 3/4 miles (air) northwest of the intersection of Scott Road and Highway 70, 6.6 miles (air) northwest of Hallelujah Junction
1512
Comment
POM203779
Phacelia heterophylla subsp. virgata
J. T. Howell
1934-7-10
12553
Lassen
Black s Mt.
Comment
SEINET12765228
Phacelia humilis
Vernon H. Oswald, Lowell Ahart
1997-6-24
8620
Lassen
South of Susan ville near the small pond on the crest of Diamond Mtn. at a impoundment on Forest Rd. 29N43, ca. 7.4 miles east of Gold Run Rd. (29N10), ca. 2.7 mi east of Lassen NF boundary.; 0
2036
Comment
SEINET5536709
Phacelia humilis
N. H. Holmgren, P. K. Holmgren
1978-6-11
8908
Lassen
Vicinity of spring at fork to Painters Flat on east side of Observation Peak, 28 km (17.4 miles) east of Ravendale and 22.5 km (14 miles) airline distance.
1680
Comment
UC1259992
Phacelia humilis
Jeffrey Huber
1971-6-2
111
Lassen
on CA Hwy 139 approx. 30 mi n Susanville
1645
Comment
UC1537537
Phacelia humilis
Gordon H. True Jr.
1938-7-9
907
Lassen
near Horse Lake
Comment
UC24376
Phacelia humilis
M. S. Baker and Frank Nutting
1894-7-12
Lassen
Pine Creek
Comment
CHSC68891
Phacelia humilis var. humilis
Vernon H. Oswald; Lowell Ahart
1997-6-24
8620
Lassen
South of susanville on the north side of Diamond Mtn. at an impoundment on the edge of Forest Rd. 29N43 ca. 7.4 miles east of Gold Run Rd. (29N10), ca. 2.7 mi east of Lassen NF boundary.
2036
Comment
JEPS95000
Phacelia humilis var. humilis
Vernon Oswald and Lowell Ahart
1997-6-24
8620
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
POM73344
Phacelia humilis var. humilis
Marcus E. Jones
1897-6-28
s.n.
Lassen
Top of Diamond Mt., Susanville, Perkin's Ranch.
2226
Comment
CHSC48470
Phacelia inundata
Vernon Oswald
1986-6-15
2114
Lassen
Near Eagle Lake Biological Station.
1584
Comment
UC764434
Phacelia inundata
Verne Grant
1947-9-5
8374
Lassen
nw shore of lake by Sam Webb's place (Spaldings); Eagle Lake
Comment
CHSC4813
Phacelia linearis
R. Carter
1967-7-7
576
Lassen
Collected outside dining hall, n side, 15 yds from building.
1524
Comment
UC133088
Phacelia linearis
T. S. Brandegee
1892-6-26
Lassen
Milford
Comment
UC24433
Phacelia linearis
Mrs. R. M. Austin
Jun. 1894
Lassen
Willow Creek
Comment
RSA129733
Phacelia mutabilis
G. A. Fischer, Irwin H. Johnson
1933-7-12
F- 226
Lassen
Lassen National Forest.
1723
Comment
CAS-BOT-BC159066
Phacelia ramosissima var. eremophila
Clare B. Hardham
1971-8-22
18400
Lassen
North slopes, Diamond Mountain
2133
Comment
CAS-BOT-BC179912
Phacelia thermalis
Peter H. Raven; Otto T. Solbrig
1958-6-17
13297
Lassen
Hwy 395, 4.8 miles south of Madeline
Comment
UC1567390
Phacelia thermalis
G. Schoolcraft
1989-5-3
1868
Lassen
s Karlo; North end of Secret Valley
1341
Comment
RSA299298
Phalaris arundinacea
J. T. Howell
1974-7-8
50477
Lassen
Susanville
1296
Comment
UC60737
Phleum alpinum
M. S. Baker and Frank Nutting
1894-7-9
Lassen
Pine Creek
Comment
UC1776695
Phleum pratense
G. Schoolcraft
1994-8-2
2407
Lassen
About 1.5 miles SW of Boot Lake
2011
Comment
RSA122928
Phlox diffusa subsp. diffusa
L. R. Short
1936-4-28
S- 332
Lassen
Lassen National Forest, Burgess Spring Experimental Range
1738
Comment
UC773907
Phlox gracilis
unknown
1936-5-7
S- 343
Lassen
Burgess Spring Experimental Range Lassen Forest
1737
Comment
UC579783
Phlox longifolia subsp. compacta
David D. Keck and J. Clausen
1935-6-24
3744
Lassen
2 mi s Ravendale
Comment
CHSC108023
Phlox speciosa subsp. occidentalis
Lowell Ahart; John Dittes
2011-6-20
17506
Lassen
About 40 yards north of the dirt road, about 100 yards northeast of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin.
1520
Comment
UC52648
Phlox speciosa subsp. occidentalis
M. S. Baker and Frank Nutting
1894-7-3
Lassen
Dixie Mts.
Comment
CHSC106569
Phlox stansburyi
K. Schierenbeck
2008-5-3
Lassen
Fort Sage Mtns.
1439
Comment
CHSC64803
Phlox stansburyi
Vernon H. Oswald
1995-5-31
6802
Lassen
Modoc Plateau. Smoke Creek Rance Rd. 0.4 mi e of Hwy. 395, between Litchfield and Ravendale.
1383
Comment
HSC17069
Phlox stansburyi
Fred J. Kindel
1955-6-6
Lassen
Doyle
Comment
JEPS107929
Phlox stansburyi
Lowell Ahart, John Dittes
2005-6-1
11846
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
RSA271915
Phlox stansburyi
Christopher Davidson
1975-6-7
2750
Lassen
1 mile E of Beckwourth Pass on Hwy 70.
1524
Comment
UC106965
Phlox stansburyi
T. S. Brandegee
1892-6-22
Lassen
Honey lake
Comment
CDA40284
Phlox stansburyi
T. C. Fuller
1963-6-11
10662
Lassen
West side of Highway 395 at road to Horse Lake, 1.5 miles south of Ravendale.
0
Comment
CHSC61141
Phoenicaulis cheiranthoides
Vernon H. Oswald; Lowell Ahart
1993-5-12
5386
Lassen
Hwy. 44 between Poison Lake and A21 (to Westwood), 1.6 mi SE of Pittsville Rd. In a meadow on the N side of the road.
1719
Comment
UC117651
Phoenicaulis cheiranthoides
T. S. Brandegee
1892-7-30
Lassen
Susanville
Comment
CHSC117545
Phoradendron bolleanum
Lowell Ahart; John Dittes
2016-7-13
21136
Lassen
5 yards south of the gate to the pond, along 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
RSA0027357
Phoradendron juniperinum
John F. Emmel
1994-7-17
1332
Lassen
Along road near north base of Observation Peak.
1768
Comment
SEINET7295530
Phragmites
John Thomas Howell
1975-1
51415
Lassen
Long Valley Creek bridge on Hwy. 395 southeast of Constantia.
Comment
UC1132473
Phragmites australis
H. S. Yates
1936-8-11
6063
Lassen
near Red Rock; Sierraville Quad.
Comment
CAS-BOT-BC58236
Phyllodoce breweri
Ella Dales Cantelow
1941-9-13
3599
Lassen
Mt. Lassen Nat. Park.
Comment
UC21954
Phyllodoce breweri
M. S. Baker and Frank Nutting
1894-7-20
Lassen
Silver Lake
Comment
CAS-BOT-BC60737
Physaria occidentalis
Marcus E. Jones
1897-6-28
s.n.
Lassen
Top of Diamond Mountain. Susanville. Perkin's Ranch.
2225
Comment
CHSC60805
Pilularia americana
Vernon H. Oswald; Lowell Ahart
1993-6-28
5623
Lassen
N of Hwy. 44 along Rd. 33N47 at the NE end of Little Harvey Valley, between Champs Flat and Harvey Valley, E of Poison Lake.
1737
Comment
RSA46500
Pinus jeffreyi
Doris K. Kildale
1926-9-11
2797
Lassen
[Writing illegible] Susanville
Comment
CDA601
Pinus washoensis
Gordon Leppig, Sylvia Leppig and Juli & Kai Neander
1998-8-18
1065
Lassen
Modoc National Forest, Blue Lake Campground
Comment
CHSC27607
Plagiobothrys cognatus
Nancy Heiken
1978-7-5
79
Lassen
S of Eagle Lake at E shore of Mahogany Lake; meadow at lake margin.
2060
Comment
JEPS28801
Plagiobothrys cognatus
George W. Gillett
1957-9-4
1127
Lassen
Widow Lake Lassen Volcanic National Park (e margin of lower lake, near inlet)
2072
Comment
HSC104018
Plagiobothrys cusickii
L. Ahart, John Dittes
2012-7-9
18284
Lassen
About 5.5 air mi. NE of Bieber, Ash Creek Wildlife Area, ~100 yds. SE of tall poles
1268
Comment
JEPS107810
Plagiobothrys cusickii
Lowell Ahart, John Dittes
2005-6-2
11954
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
RSA0039528
Plagiobothrys cusickii
Lowell A. Ahart, John Dittes
2012-7-9
18284
Lassen
About 100 yards southeast of the tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
SBBG128883
Plagiobothrys cusickii
L. Ahart, J. Dittes
2008-6-20
14914
Lassen
vernal pool, ca. 100 yards SW 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
UC1137645
Plagiobothrys hispidulus
A. Simontacchi
1940-5-21
757
Lassen
4.1 mi sse Blacks Mountain; Halls Flat Quad., Lassen National Forest
Comment
CHSC59082
Plagiobothrys hispidus
Vernon H. Oswald; Lowell Ahart
1992-8-25
5193
Lassen
Lassen Volcanic National Park. West shore of Snag Lake SW of the islands.
1851
Comment
JEPS87508
Plagiobothrys hispidus
Vernon H. Oswald and Lowell Ahart
1993-7-8
5655
Lassen
se edge Poison Lake (Pittville Road (Lassen 111, 36N01) 1.9 mi n of Highway 44, stony ridge between the R.R. and the lake); se edge Poison Lake
1709
Comment
JEPS94132
Plagiobothrys leptocladus
Vernon H. Oswald and Lowell Ahart
1998-5-22
9099
Lassen
ca. 3 mi. n. Doyle (Hackstaff Rd. 1.0 mi. s.of Laver Crossing Rd., 0.2 mi. n. of Fort Sage Rd.)
1316
Comment
UC1483869
Plagiobothrys leptocladus
G. Schoolcraft
1980-5-7
223
Lassen
n shore Honey Lake Island; n shore Honey Lake Island
1219
Comment
RSA0035395
Plagiobothrys mollis var. mollis
Lowell Ahart, John Dittes
2008-6-20
14921
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
RSA337274
Plagiobothrys scouleri
Noel Holmgren, Patricia K. Holmgren
1980-7-3
9476
Lassen
Madeline Plains, a valley road 1.1 km (0.7 mi.) west of U.S. Highway 395 from a turnoff 10.3 km (6.4 mi.) south of Madeline
1616
Comment
RSA39738
Plagiobothrys scouleri var. hispidulus
P. A. Munz
1947-5-20
11891
Lassen
Milford.
1265
Comment
CHSC112445
Plagiobothrys stipitatus var. micranthus
Lowell Ahart; John Dittes, Todd Sloat
2013-6-8
18771
Lassen
300 - 400 or more or less yards northwest of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
JEPS121291
Plagiobothrys stipitatus var. micranthus
Lowell Ahart, John Dittes
2013-7-22
18873
Lassen
40 yards S of the man-made pond, about 110 yards N of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley.
Comment
UCD55159
Plagiobothrys tenellus
Ellen Dean
2006-5-15
3047
Lassen
E of town of Susanville. Along C.R. A27 (Center Rd.) Grounds of California Correctional Facility.
1248
Comment
POM73080
Plagiobothrys torreyi
Marcus E. Jones
1897-6-19
s.n.
Lassen
Chat
1524
Comment
RSA0017432
Plantago lanceolata
Marcus E. Jones
1897-6-21
s.n.
Lassen
Chat.
1616
Comment
CHSC30564
Platanthera leucostachys
Sori H. Shad
1970-6-19
21
Lassen
Above and east of Galatin Beach.
1524
Comment
POM107756
Platanthera leucostachys
Marcus E. Jones
1897-6-30
s.n.
Lassen
Susanville, 4 miles below Eagle Lake.
1524
Comment
SD7498
Platanthera sparsiflora
Mrs. R. M. Austin
1880-1
Lassen
No further locality information given on label on specimen sheet.
Comment
SEINET10972033
Plectritis congesta
Mary Susan Taylor
1974-5-4
Taylor 222
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
JEPS26656
Plectritis macrocera
Lauramay T. Dempster
1961-6-17
1681
Lassen
just w of Tule Mountain (Highway 395); Highway 395
1645
Comment
JEPS36547
Pleiacanthus spinosus
W. L. Jepson
1918-8-2
7790
Lassen
Long Valley
1371
Comment
UC1562342
Pleiacanthus spinosus
Vernon Oswald and Lowell Ahart
1990-7-25
4395
Lassen
2.2 mi w Highway 395 (intersection of Hwy 70 and Scott Rd)
1463
Comment
CHSC99276
Poa bulbosa
Lowell Ahart; John Dittes
2008-6-22
15035
Lassen
About 220 yards west of the road levee, on the banks of a small natural drainage, in Big Valley, about 2.1miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 5 miles (air) northeast of Bieber.
1262
Comment
HSC10643
Poa bulbosa
D. E. Anderson
1969-7-5
5000
Lassen
Freedonyer Pass, 15 mi. W of Susanville
1752
Comment
UC1100399
Poa bulbosa
Herbert L. Mason, Malcolm A. Nobs, and S. Galen Smith
1949-5-29
758
Lassen
on Great Northern RR, Hwy 299 <Nubeiber>
Comment
CHSC112468
Poa bulbosa subsp. vivipara
Lowell Ahart; John Dittes, Todd Sloat
2013-6-8
18748
Lassen
About 30 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
RSA115224
Poa compressa
Beecher Crampton
1956-7-17
3736
Lassen
Ca. 2.5 miles north of Emigrant Gap.
1372
Comment Read comments Apr 28 2013
RSA719872
Poa compressa
M. A. Vincent, K. Levings
2006-7-29
12903
Lassen
Along Rte. 36, 14.3 miles west of Susanville
Comment
UC589933
Poa compressa
Leo Whitney
1935-5-26
3147
Lassen
10 mi e Adin (bank of Ash Creek)
Comment Read comments Jun 24 2009
CHSC112474
Poa cusickii subsp. cusickii
Lowell Ahart; John Dittes, Todd Sloat
2013-6-8
18780
Lassen
300 - 400 or more or less yards northwest of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
CAS-BOT-BC247256
Poa palustris
H. S. Yates
1936-8-12
6079
Lassen
McKenzie Meadow
Comment
CAS-BOT-BC247320
Poa pratensis
Ira L. Wiggins; Dorothy B. Wiggins
1961-6-11
16337 -A
Lassen
13.5 mi. E. of Susanville
Comment
SEINET10523355
Poa pratensis
Billy Joe Cox
1971-6-11
Cox 3188
Lassen
1 mi W of Westwood, on CA Hwy 36; scattered Pinus ponderosa, Pseudotsuga menziesii, Arctostaphylos, and Ceanothus all volcanic soils, rather flat & arid.
Comment
CAS-BOT-BC255025
Poa secunda
Ira L. Wiggins; Dorothy B. Wiggins
1961-6-11
16337
Lassen
13.5 miles E of Susanville
Comment
CAS-BOT-BC236256
Poa secunda subsp. juncifolia
David D. Keck
1944-7-8
5449
Lassen
1.5 miles W of Susanville, on rim of plateau overlooking Susan River Canyon
1341
Comment
CHSC100869
Poa secunda subsp. juncifolia
L. P. Janeway
2008-8-2
9529
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
UCD92408
Poa secunda subsp. juncifolia
R. Tofsrud
1947-7-24
225
Lassen
Between Ravendale and Thermos.
Comment
CAS-BOT-BC236184
Poa secunda subsp. secunda
John Thomas Howell
1976-7-20
52008
Lassen
About 5 miles W of Fredonyer Pass near confluence of Susan River and Willard Creek
1432
Comment
UCD91653
Poa secunda subsp. secunda
John Thomas Howell; Gordon H. True, Margaret Williams
1973-5-12
49196
Lassen
Sierra Nevada. Elysian Valley northwest of Janesville.
1325
Comment
UCD92016
Poa secunda subsp. secunda
A. H. Shunk
1923-1
14
Lassen
Hayden Hill.
Comment
HSC68792
Poa wheeleri
Gary Schoolcraft
1979-7-3
112
Lassen
4.3 mi. up Observational Lookout Rd. from Horne Ranch Rd.
2134
Comment
UC1024824
Poa wheeleri
Leo Whitney
1935-6-13
3240
Lassen
Camp 10 Fruit Grower's Supply Company
Comment
UC1136985
Poa wheeleri
L. R. Short
1936-4-28
S- 340
Lassen
Burgess Spring Experimental Range; Lassen Forest
1767
Comment
CHSC7768
Polemonium micranthum
Beverly J. Wise
1969-4-20
92
Lassen
13.2 mi. East of Susanville on Las. Co. Rd. 215.
1463
Comment
NY963445
Polemonium micranthum
A. Tiehm
1986-5-14
10378
Lassen
1.5 road miles southwest of Dodge Reservoir on the main road to Ravendale, near a windmill
1707
Comment
CHSC96705
Polemonium occidentale
Gordon Leppig
1998-7-12
949
Lassen
Modoc National Forest, Blue Lake Ranch. Peatland in large meadow complex.
1970
Comment
CAS-BOT-BC74163
Polyctenium fremontii
G. Schoolcraft
1998-5-19
2707
Lassen
South end Mud Flat.
1341
Comment
CAS-BOT-BC74171
Polyctenium fremontii
Gary Schoolcraft
1984-7-9
1287
Lassen
On s. south of Fillman Road 3.8 miles west of Highway 395.
1609
Comment
HSC63923
Polyctenium fremontii
Teresa Prendusi, M. Meyer
1980-4-30
Lassen
Along Hwy. 395, 3 mi. SE of Ravendale
1616
Comment
RSA487941
Polyctenium fremontii
A. Tiehm, Jan Nachlinger, M. Williams
1988-6-2
11703
Lassen
6.6 miles north of the Wendel Rd. on Hey 395 from Susanville to Alturas.
1348
Comment
SEINET3197107
Polyctenium fremontii var. confertum
Gary Schoolcraft
1984-7-9
1287
Lassen
South of Fillman Road, 3.8 miles west of Hwy 395
1610
Comment
JEPS94355
Polyctenium fremontii var. fremontii
Vernon H. Oswald and Lowell Ahart
1997-5-7
8405
Lassen
1.7 ni e of Highway 395 (Mud Flat along Smoke Creek Ranch Road); Mud Flat, Smoke Creek Ranch Road
1356
Comment
CHSC117618
Polygala subspinosa
L. P. Janeway and B. Castro
2015-6-5
11765
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
NY404581
Polygonum amphibium var. emersum
G. H. True Jr.
1939-7-6
1038
Lassen
George Bailey Ranch, Honey Lake Valley
Comment
UC1536797
Polygonum amphibium var. emersum
Gordon H. True Jr.
1939-7-6
1038
Lassen
George Bailey Ranch Honey Lake Valley
Comment
CAS-BOT-BC419766
Polygonum argyrocoleon
Ernest C. Twisselmann
1961-9-21
6570
Lassen
Harvey Valley Road, ca. 14 miles south of Pittville
1219
Comment
UC1136193
Polygonum bistortoides
A. Simontacchi
1940-5-17
741
Lassen
5.9 mi s Patterson Mtn.; Lassen National Forest, Halls Flat Quadrangle
Comment
UC725581
Polygonum bistortoides
A. A. Heller
1938-6-4
15141
Lassen
2 mi w Westwood
Comment
JEPS31669
Polygonum convolvulus
W. L. Jepson
1939-8-11
19376
Lassen
Milford
1280
Comment
CAS-BOT-BC414490
Polygonum douglasii
John Thomas Howell
1974-7-10
50562
Lassen
Elysian Valley
1325
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
UC1553395
Polygonum douglasii subsp. spergulariiforme
G. Schoolcraft
1988-6-15
1814
Lassen
16 mi e Adin; Ash Valley RNA/AEC
1584
Comment
RSA128554
Polygonum hydropiper
Peter H. Raven
1954-9-2
8115
Lassen
Bed of St. Helena Creek at Mirabel Park, 4.8 miles S of Middletown
Comment
SEINET11933855
Polygonum kelloggii
N. H. Holmgren, Holmgren, P. K.
1980-1
9466
Lassen
Madeline Plains, along US Hwy 395, 5.6 km S of Madeline, T36N, R13E, S9
1620
Comment
CAS-BOT-BC418534
Polygonum minimum
George W. Gillett
1957-7-28
931
Lassen
Lassen Volcanic National Park. One mile above Butte Lake, on Widow Lake Trail
1905
Comment
UC1603209
Polygonum polygaloides
J. Guardino
1993-6-9
281 B
Lassen
near Wayman Barn (at the w end of Hunt Road, Ash Creek Wildlife Area); Ash Creek Wildlife Area, Hunt Road
1264
Comment
UC1603210
Polygonum polygaloides
J. Guardino
1993-6-8
256
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
CHSC78483
Polygonum polygaloides subsp. confertiflorum
Vernon H. Oswald
2000-7-31
9948
Lassen
Spur road leading from Forest Road 28N15 to the small pond on the crest of Diamond Mountain.
2215
Comment
HSC82191
Polygonum polygaloides subsp. confertiflorum
Thomas W. Nelson, Jane P. Nelson
1980-7-6
6041
Lassen
Along Ash Creek at Ash Creek Campground
1494
Comment
JEPS120876
Polygonum polygaloides subsp. confertiflorum
Lowell Ahart, John Dittes, Todd Sloat
2013-6-8
18732
Lassen
About 30 yards N of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley.
Comment
JEPS83273
Polygonum polygaloides subsp. confertiflorum
J. D. Jokerst
1983-7-24
1883
Lassen
Madeline Plains nw of Ravendale; Madeline Plains
1584
Comment
UC1112251
Polygonum polygaloides subsp. confertiflorum
R. C. Bacigalupi with S. Galen Smith
1957-6-28
6003
Lassen
ditch along Hwy 395 3.1 mi s Madeline; Madeline Plains
1615
Comment
UC1191311
Polygonum polygaloides subsp. confertiflorum
Herbert L. Mason
Jul 29 1955-Jul 31 1955
14639
Lassen
Pine Creek Flat
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
CAS-BOT-BC420158
Polygonum sawatchense subsp. sawatchense
John Thomas Howell
1934-7-9
12528
Lassen
Harvey Valley
Comment
UC1609438
Polygonum sawatchense subsp. sawatchense
Vernon H. Oswald and Lowell Ahart
1993-6-14
5518
Lassen
Eagle Lake Rd (Lassen A1) 0.5 mi w Spaulding Tract Rd. (Rd. 518, 33N89) (ca 3 mi w of Eagle Lake)
1810
Comment
CAS-BOT-BC420159
Polygonum sawatchense subsp. sawatchense
G. Schoolcraft
1988-6-15
1814
Lassen
Ash Valley RNA/ACEC 16 miles east of Adin
1584
Comment
SBBG119830
Polygonum spergulariiforme
L. Ahart
2003-8-17
10515
Lassen
E side of Hwy 36, ca. 0.25 air mi SW of the Susan River, ca. 8 air mi SW of Susanville
1433
Comment
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
SEINET10885945
Populus tremuloides
Karen M. Meyer, Andrew Townesmith
2007-7-21
Meyer 141
Lassen
Lassen National Forest. 1.3 mi. on rd. 110, off Hwy. A21.
1821
Comment
CHSC99731
Porterella carnosula
Lowell Ahart; John Dittes
2008-6-20
14963
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 7.0 miles (air) northeast of Bieber.
1263
Comment
JEPS17746
Porterella carnosula
Rimo Bacigalupi with G. T. Robbins
1955-7-20
5408
Lassen
4.4 mi s Patterson Ranger Station (Long Valley, southern end of Warner Mts., Modoc National Forest); Modoc National Forest, s end of Warner Mts.
2057
Comment
JEPS23859
Porterella carnosula
Peter H. Raven with Otto T. Solbrig
1958-6-17
13294
Lassen
along United States Highway 395, 4.8 mi s Madeline
Comment
HSC63956
Porterella carnosula
Teresa Prendusi
1980-7-1
Lassen
Champs Flat, ca. 8 mi. W of N end of Eagle Lake.
1677
Comment
SEINET10460829
Porterella carnosula
Howell
1934-7-7
Howell 12466
Lassen
Near Feather Lake
Comment
SEINET10460836
Porterella carnosula
Rimo Bacigalupi
Bacigalupi 6023
Lassen
In rich peaty black soil of ditches along U.S. Highway 395, Madeline Plains, 3.1 miles south of Madeline
1615
Comment
CHSC4850
Potamogeton
R. Carter
1967-7-13
594
Lassen
Ca. 5 mi e of Eagle Lake Biology Station at point where rd comes nearest to Willow Creek.
1560
Comment
UC1099904
Potamogeton amplifolius
Verne Grant, Irving Schneider
1947-8-24
8269
Lassen
nw shore of Blue Lake (northern Lassen County)
Comment
SEINET9362199
Potamogeton diversifolius
Robert Thorne, DeBuhr, Larry
1975-8-22
47201
Lassen
Lassen county
Comment
CHSC4804
Potamogeton filiformis
R. Carter
1967-7-13
595
Lassen
Ca. 5 mi e of Eagle Lake Biology Station at point where rd comes nearest to Willow Creek.
1560
Comment
UCR196279
Potamogeton foliosus
Daniel B. Marcum
2007-7-25
s.n.
Lassen
6 mi south of Bieber in Big Valley. Robin Harbert's wild rice field
1280
Comment
RSA748317
Potamogeton natans
K. M. Meyer, A. Townesmith
2007-7-21
146
Lassen
Lassen National Forest. 1.3 mile on Road 10 to Silver Lake off Road 110. Pine forest, lake.
1963
Comment
SEINET10704662
Potamogeton natans
Karen M. Meyer, Andrew Townesmith
2007-7-21
Meyer 146
Lassen
Lassen National Forest. 1.3 mi. on Road 10 to Silver Lake off Road 110.
1963
Comment
UC1100078
Potamogeton pectinatus
Verne Grant, Irving Schneider
1947-7-29
8184
Lassen
e end of Tule Lake
Comment
JEPS28699
Potamogeton richardsonii
George W. Gillett
1957-7-26
919
Lassen
on e side of Butte Lake (near island, near shore); Lassen Volcanic National Park
1844
Comment
UC60849
Potamogeton striatus
J. B. Davy
Jun 17 1897-Jun 24 1897
Lassen
Honey Lake Valley, Amedee
Comment
UC60850
Potamogeton zosteriformis
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3356
Lassen
near Amedee; Honey Lake Valley
Comment
CHSC68764
Potentilla biennis
Vernon H. Oswald; Lowell Ahart
1997-5-27
8487
Lassen
East side of Hwy. 139 at a small pond 38.2 mi north of Susanville, 7.4 mi north of Eagle Lake Rd.
1627
Comment
CAS-BOT-BC540030
Potentilla biennis
Verne Grant; Irving Schneider
1947-7-30
8189
Lassen
South point of west embayment, Tule Lake
Comment
UC1136906
Potentilla gracilis var. fastigiata
L. R. Short and W. McNulty
1936-6-17
S- 443
Lassen
Burgess Spr. Exp. Range Lassen National Forest, Burgess Spr. Exp. Range
1767
Comment
HSC18787
Potentilla gracilis var. fastigiata
Jim Vaughn
1956-8-25
Lassen
Drakesbad, Mt. Lassen National Park
1738
Comment
SBBG3009
Potentilla gracilis var. flabelliformis
H. and M. Dearing
1938-7-1
2240
Lassen
W of Susanville
Comment
CAS-BOT-BC158476
Potentilla gracilis var. gracilis
A. M. Vollmer; L. Beane
1953-7-1
81
Lassen
Along Halls Flat road beginning 6 miles west of Susanville to McArthur
1554
Comment
SEINET10540584
Potentilla klamathensis
Katherine L. Morris
1973-5-25
Morris 253
Lassen
27.7 miles nw of the junction of hwy 36 and 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
UC1128270
Potentilla millefolia
Robert W. Gardner
1937-6-18
G- 9
Lassen
Burgess Spring Halls Flat Quad., Burgess Spring
Comment
SJSU5819
Poteridium annuum
J. W. Tilden
1960-6-27
1503
Lassen
outskirts of Westwood at foot of Moonlight Rd
1524
Comment
SJSU13984
Prunus andersonii
N. A. Hopkins
1988-5-16
1400
Lassen
Scott Rd by Long Valley Cr c. 3 mi N of Hwy 70
1432
Comment
RSA0037144
Prunus andersonii
B. Villegas
2011-3-26
s.n.
Lassen
Hallelujah Junction. NE corner of HWY 395 & HWY 70 intersection.
Comment
CHSC23523
Prunus emarginata
Wayne O. Baum
1971-7-7
71 -83
Lassen
N. slope of Gallatin Peak.
2011
Comment
CAS-BOT-BC154771
Prunus virginiana var. demissa
L. B. Barlow
1967-7-1
63
Lassen
5 mi. north of Eagle Lake Marina, west central shore Eagle Lake, Eagle Lake Road
1554
Comment
CAS-BOT-BC154772
Prunus virginiana var. demissa
Alice Eastwood; John Thomas Howell
1940-6-11
7994
Lassen
Nubieber
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
CAS-BOT-BC239800
Pseudoroegneria spicata
John Thomas Howell
1976-7-20
51997
Lassen
About 5 miles west of Fredonyer Pass near confluence of Susan River and Willard Creek
1432
Comment
JEPS127720
Pseudoroegneria spicata
Alejandro Brambila, Michael Dolan
2016-7-28
CA 320 -175
Lassen
171 west from 385 south. After the second tight switchback the population is off the road downslope.
Comment
CAS-BOT-BC80092
Pseudotsuga menziesii
John Thomas Howell
1976-7-19
51965
Lassen
on Gold Run Creek southwest of Susanville
1386
Comment
SEINET5345383
Pseudotsuga menziesii var. menziesii
D. A. Charlet
1996-7-8
2286
Lassen
Diamond Mountains, Sierra NV, Great Basin drainage (Honey Lake); East Canyon (Milford Grade); at Laufman Campground
1620
Comment
JEPS127273
Psilocarphus brevissimus var. brevissimus
Lowell Ahart, John Dittes
2016-7-13
21110
Lassen
100 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley.
Comment
RSA647519
Puccinellia nuttalliana
Marion P. Harthill
1972-6-17
801
Lassen
Standish.
Comment
SEINET222545
Puccinellia nuttalliana
Noel H. Holmgren, Patricia Holmgren
1978-6-13
8939
Lassen
2.7 km (1.7mi) north-west of Wendel.
1250
Comment
CHSC23564
Purshia tridentata
W. O. Baum
1971-6-28
42
Lassen
Along fire trail on e slope of Gallatin Peak.
1920
Comment
SEINET10542465
Purshia tridentata
Billy Joe Cox, Paul Gallian
1971-6-2
Cox 2592
Lassen
Ca 6 miles s of susanville at junction of us hwy 395 and cal hwy 36 to Susanville, near johnstonville. Assoc.; Purshia-artemesia
1311
Comment
CAS-BOT-BC147821
Purshia tridentata var. tridentata
Alice Eastwood; John Thomas Howell
1940-6-16
8341
Lassen
Janesville
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
RSA86630
Purshia tridentata var. tridentata
F. W. Peirson
1932-7-20
10355
Lassen
20 miles SE of Susanville.
Comment
UC1128540
Purshia tridentata var. tridentata
C. W. Hanks
1934-9-26
91
Lassen
w side Long Valley (near Plumas National Forest); Sierraville Quad.
1432
Comment
UC12421
Purshia tridentata var. tridentata
M. S. Baker and Frank Nutting
1894-7-9
Lassen
Pine Creek
Comment
UC773873
Purshia tridentata var. tridentata
L. R. Short and Wm. Gansberg
1936-7-9
S- 482
Lassen
Burgess Spring Experimental Range; Lassen National Forest
1792
Comment
CAS-BOT-BC462754
Pyrola dentata
Marcus E. Jones
1897-6-28
s.n.
Lassen
Diamond Mt., Susanville. Perkin's Ranch
2133
Comment
CHSC66723
Pyrola picta
Vernon H. Oswald; Lowell Ahart
1996-8-1
8130
Lassen
Forest Rd. 28N56 (D-Line) ca. 0.6 mi NNW of Dyer Mtn. Lookout, SSW of Westwood.
2011
Comment
UC70346
Pyrola picta
Milo S. Baker
1890-1
Lassen
Milford
Comment
SD108109
Pyrrocoma lanceolata var. subviscosa
Richard Alan Mayes
1973-7-23
89
Lassen
43 miles south of Alturas, on US Highway 395
Comment
RSA518917
Quercus kelloggii
George K. Helmkamp
1990-10-4
M- 8
Lassen
South of Susanville in Plumas National Forest; north of Milford Pass.
1463
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
CAS-BOT-BC379463
Ranunculus alismifolius
Louella Bass
1973-4-16
18
Lassen
Elysian Valley
Comment
JEPS28456
Ranunculus alismifolius var. alismellus
George W. Gillett
1957-6-21
869
Lassen
meadow 300 yd n Juniper Lake-Cameron Meadow trail summit; Lassen Volcanic National Park
2118
Comment
JEPS93978
Ranunculus alismifolius var. alismifolius
Vernon H. Oswald
1998-6-22
9230
Lassen
ca. 18 mi. n. Westwood (Champs Flat Rd. (A-21) 1.8 mi. n. of Hwy. 44)
1749
Comment
UC1608998
Ranunculus alismifolius var. alismifolius
Vernon H. Oswald and Lowell Ahart
1993-6-3
5470
Lassen
Champs Flat Rd. (Lassen 21/105, Forest 32N02) 1.8 mi n Hwy 44 (between Poison Lake and Susanville)
1749
Comment
HSC18114
Ranunculus alismifolius var. hartwegii
R. J. Vernimen
1963-5-4
49
Lassen
10 mi. N of Mineral on Hwy. 36
Comment
CHSC110303
Ranunculus aquatilis var. diffusus
L. P. Janeway; B. Castro
2012-7-2
10932
Lassen
Modoc Plateau. East side of Skedaddle Mountains; large meadows along Skedaddle Creek, just upstream from 'Skedaddle Ranch.
1600
Comment
CHSC27662
Ranunculus cymbalaria var. saximontanus
Robert A. Schlising
1978-7-27
3320
Lassen
E side of Eagle Lake. Pasture.
Comment
CHSC6247
Ranunculus cymbalaria var. saximontanus
M. West
1946-7-2
Lassen
Pine Creek, Eagle Lake.
1584
Comment
RSA152629
Ranunculus cymbalaria var. saximontanus
I. L. Wiggins, Dorothy B. Wiggins
1961-6-11
16345
Lassen
N of road 13.5 miles E of Susanville
Comment
CHSC14062
Ranunculus glaberrimus var. ellipticus
Tim Manolis
1974-2-16
16
Lassen
2 1/4 mi e of Eagle Lake Field Station.
Comment
UC1776660
Ranunculus glaberrimus var. ellipticus
G. Schoolcraft
1995-4-2
2464
Lassen
East end of Elysian Valley W. of Janesville
1310
Comment
CHSC13795
Ranunculus macounii
Cathy Crittenden
1970-7-8
37
Lassen
Lower Murrer's Meadow along Willow Creek.
1463
Comment
UC1924217
Ranunculus occidentalis
Debra Valov
2004-6-9
2004266
Lassen
Bieber; off County A2 c. 8 km east of Hwy 299
1274
Comment
UC69597
Ranunculus occidentalis
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3379
Lassen
Honey Lake Valley
Comment
RSA0062681
Ranunculus occidentalis
Marion P. Harthill
1972-6-17
825
Lassen
Madeline.
1676
Comment
NY494767
Ranunculus occidentalis var. dissectus
H. D. D. Ripley
1943-6-13
5682
Lassen
Near Milford
1264.9
Comment
CDA24351
Ranunculus sceleratus var. multifidus
D. L. Haws
1974-5-3
Lassen
Railroad right-of-way near Susanville.
0
Comment
CDA3488
Ranunculus testiculatus
T. C. Fuller
1963-6-12
10666
Lassen
County fairgrounds, Susanville.
0
Comment
UC1587100
Rhaponticum repens
G. Schoolcraft
1991-7-31
2203
Lassen
just n of Hall Spring; Shinn Mts.
1706
Comment
JEPS124781
Rhus aromatica
C. Meek
1969-7-9
85
Lassen
On south facing slope overlooking the Pitt Gorge off Hi #299; 2 mi West of Fall River Mills.
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
SBBG2740
Ribes aureum
H. and M. Dearing
1939-6-6
3563
Lassen
Pitt River, Bieber
Comment
UC79702
Ribes aureum
Walter E. Bryant
Lassen
Comment
CHSC12425
Ribes cereum
Anne Linda Brisk
1969-6-20
15
Lassen
Found 1/4 mi NE ELBS in flat, basaltic, rocky area.
1554
Comment
CHSC21360
Ribes cereum
M. S. Taylor
1974-5-4
219
Lassen
Scattered ca. 1/4 mi n of Eagle Lake Field Station, ca. 13 mi nw of Susanville.
1524
Comment
NY455007
Ribes cereum
B. M. Bartholomew
1988-7-22
4503
Lassen
Mosquito Creek, ca. 2 km. southwest of Patterson Meadow, southern end of the Warner Mountain
2080
Comment
CHSC86948
Ribes cereum var. cereum
L. P. Janeway
2001-6-19
7188
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
CAS-BOT-BC169008
Ribes hudsonianum
L. S. Smith
1918-8-13
1033
Lassen
Lost Lake, Silver Creek, Modoc National Forest
2286
Comment
SEINET10838520
Ribes roezlii
Mary Susan Taylor
1974-1
Taylor 309
Lassen
Vicinity of Eagle Lake, ca. 13 mi NW of Susanville.
Comment
CAS-BOT-BC186149
Ribes roezlii var. roezlii
George W. Gillett
1957-7-26
917
Lassen
Butte Lake
1844
Comment
CHSC80652
Ribes velutinum
V. H. Oswald; B. Corbin, K. Earll, G. Schoolcraft
2001-6-2
10033
Lassen
Northeast of Doyle in the Fort Sage Mtns, trailhead to top of mountain from the end of a 4WD road.
1798
Comment
UCR17277
Ribes velutinum
Frank C. Vasek
1975-7-11
750711- 29
Lassen
Modoc National Forest, Hayden Hill Road c. 0.75-1.0 mi SW of Calif. Hwy 139
1829
Comment
UCR248242
Ribes velutinum
J. R. Keck Jr.
1977-8-10
s.n.
Lassen
Lassen National Forest, near Puls Camp east of Blacks Mountain
1829
Comment
SD131593
Rigiopappus leptocladus
Arnold Tiehm, Margaret Williams, Jan Nachlinger
1988-6-2
11700
Lassen
south side of Shaffer Mt., 3.4 road miles north of the Wendel road on highway 395 from susanville to Alturas west of the highway
1385
Comment
JEPS34911
Rigiopappus leptocladus
L. S. Smith
1920-6-15
Lassen
McKenzie spring Bieber Range, McKenzie spring
1310
Comment
SEINET3148575
Rigiopappus leptocladus
L. S. Rose
1940-6-11
40507
Lassen
8 mi W of Nubieber
1219
Comment
CHSC72219
Rorippa columbiae
Vernon H. Oswald
1998-9-14
9626
Lassen
Windy Hollow on the west side of Hwy. 44 ca. 1 mi northwest of its intersection with A21 (to Westwood).
1737
Comment
CHSC84873
Rorippa curvisiliqua
Samantha Mackey Hillaire; Linnea Hanson, Catie Bishop
2003-9-21
354
Lassen
Lassen Volcanic National Park. Snag Lake; mudflat just N of an open stand of willows on the south shore of the lake; just east of where Grassy Creek flows into the lake. [Label says 'area near' latitude and longitude].
1900
Comment
JEPS119648
Rorippa curvisiliqua
Lowell Ahart, John Dittes
2012-7-9
18292
Lassen
Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
Comment
RSA0065538
Rorippa curvisiliqua
Marion P. Harthill
1971-6-20
216
Lassen
Susanville.
Comment
RSA431533
Rorippa curvisiliqua
Rockwell
s.n.
Lassen
Eagle Lake.
Comment
CHSC113059
Rorippa curvisiliqua var. orientalis
Lowell Ahart; John Dittes
2013-7-22
18855
Lassen
Drainage filled with dirt from construction of a pond, about 30 yards south of the man made pond, about 120 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley.
1267
Comment
CHSC71385
Rorippa curvisiliqua var. orientalis
V. Oswald; B. Corbin, M. Dolan, V. Sanger, G. Schoolcraft
1998-7-13
9260
Lassen
Moll Reservoir in Ash Valley southeast of Adin. Along the edge of the reservoir.
1615
Comment
CHSC25060
Rorippa nasturtium-aquaticum
L. B. Barlow
1967-6-24
40
Lassen
Meadow 4 mi. east of Eagle Lake Biological Station at Murrer's Upper Meadow.
1524
Comment
CHSC30577
Rorippa nasturtium-aquaticum
Sori H. Shad
1970-6-24
42
Lassen
In upper Murrer's Meadow, in irrigation ditch.
1524
Comment
CHSC4261
Rorippa nasturtium-aquaticum
K. R. Stern
1967-6-24
2405
Lassen
Murrer Meadow, ca. 3 mi. SE of Eagle Lake Biological Station.
1554
Comment
NY182185
Rorippa sinuata
G. Schoolcraft
1983-6-28
1025
Lassen
1341.1
Comment
NY661122
Rorippa sinuata
B. Corbin
2002-6-4
1079
Lassen
Deep Creek crossing of Highway 395.
1350.3
Comment
CHSC4976
Rosa woodsii subsp. ultramontana
D. L. Stites
1967-6-25
58
Lassen
2 mi w of Eagle Lake Biology Station at Pelical Point.
1524
Comment
SBBG3088
Rosa woodsii subsp. ultramontana
H. and M. Dearing
1939-6-6
3562
Lassen
Bieber
Comment
JEPS45632
Rosa woodsii var. ultramontana
Brown and Wieslander
1928-6-16
Lassen
Eagle Lake
1584
Comment
JEPS45639
Rosa woodsii var. ultramontana
W. L. Jepson
1918-8-3
7801
Lassen
Honey Lake Valley
1219
Comment
CHSC66728
Rotala ramosior
Vernon H. Oswald; Lowell Ahart
1996-8-1
8105
Lassen
Mountain Meadows Reservoir SW of Westwood. Growing on the receding shore of the reservoir NE of Indian Ole Dam.
1539
Comment
CHSC68870
Rubus parviflorus
Vernon Oswald; Lowell Ahart
1997-6-24
8614
Lassen
South of Susanville on the north side of Diamond Mtn. along Forest Rd. 29N43, 5.4 miles east of Gold Run Rd. (29N10), 0.7 mi east of Lassen NF boundary.
1889
Comment
CAS-BOT-BC421953
Rumex acetosella
Paul Gallian; B. J. Cox
1971-6-2
482
Lassen
5 miles South of Milford near Honey Lake on U.S. Hwy. 395
1249
Comment
CDA2904
Rumex crispus
Gordon Leppig
1998-7-12
962
Lassen
Northern California Peatlands; Modoc National Forest, Blue Lake Ranch.
Comment
UC452560
Rumex crispus
Franklin P. Nutting
Lassen
near Lookout; Big Valley
Comment
CAS-BOT-BC433485
Rumex fueginus
John Thomas Howell
1934-7-8
12485
Lassen
Spalding's, Eagle Lake
Comment
CHSC76101
Rumex fueginus
Lowell Ahart; Vernon H. Oswald
1999-9-13
8214
Lassen
On the edge of a flooded canal, just southwest of the parking area, about 1 mile south of the sign in station, Honey Lake Wildlife Area, 5 1/2 miles (air) southeast of Standish.
1207
Comment
UC748316
Rumex maritimus
Annie M. Alexander and Louise Kellogg
1946-8-11
5154 A
Lassen
nw end Eagle Lake (Sam Webb's Hunting Cabins)
Comment
CAS-BOT-BC109328
Rumex paucifolius
Geo. A. Fisher
1928-6-23
32
Lassen
Halls Flat.
1615
Comment
CAS-BOT-BC109329
Rumex paucifolius
G. Schoolcraft
1987-4-29
1689
Lassen
Ash Valley RNA.
1554
Comment
CAS-BOT-BC433860
Rumex salicifolius
B. Bartholomew; B. Anderson
1988-7-22
4497
Lassen
Mosquito Creek ca. 2 km SW of Patterson Meadow, southern end of the Warner Mountain.
2080
Comment
UC1036083
Rumex salicifolius var. lacustris
Annie M. Alexander and Louise Kellogg
1946-8-11
5152
Lassen
4 to 6 mi s Madeline
Comment
CHSC65318
Rumex salicifolius var. salicifolius
Vernon H. Oswald; Lowell Ahart
1995-8-14
7188
Lassen
Horse Lake Rd. (Lassen 536) at the railroad crossing 1 mi W of Hwy.395, N of Susanville.
1645
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-BC109417
Rumex venosus
P. B. Kennedy
1901-6-10
s.n.
Lassen
Railroad Station, Constantia.
Comment
UCD101656
Rumex venosus
R. N. Raynor
1939-5-31
s.n.
Lassen
Milford, Honey Lake Valley.
Comment
SEINET4176394
Rumex venosus
P. B. Kennedy
1901-6-10
s.n.
Lassen
R.R. Station, Constantia
Comment
CHSC13691
Sagittaria cuneata
Patrick Balch
1935-7-17
Lassen
Willow Creek Springs.
Comment
CHSC4993
Sagittaria cuneata
R. Clicquennoi
1967-7-1
21
Lassen
At edge of small roadside pool 16 mi n of Susanville on highway 139.
1524
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
JEPS124719
Sagittaria cuneata
Rechen
1964-6-30
87
Lassen
1 mile west of junction of hwy 299 and Lassen AZ on 299.
Comment
CAS-BOT-BC132697
Salix
John Thomas Howell
1976-7-20
52017
Lassen
Bottom flats along Willard Creek near its confluene with Susan River, about 5 miles west of Fredonyer Pass
1432
Comment
NY188399
Salix eriocephala subsp. mackenzieana
R. D. Dorn
1972-6-2
1492
Lassen
Willow Creek, about 15 miles SSE of Adin
1524.0
Comment
CHSC91187
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
JEPS114626
Salix exigua
Lowell Ahart, John Dittes
2008-6-22
15043
Lassen
On the bottom of a deep ditch, on the south side of the road levee, open meadow area, in Big Valley, about 2.4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 5.4 miles (air) northeast of Bieber
1257
Comment
SEINET3260826
Salix exigua
Marcus E. Jones
1897-6-25
Lassen
Susanville.
1340
Comment
JEPS107798
Salix jepsonii
Lowell Ahart, John Dittes
2005-6-2
11947
Lassen
Long Valley, along a small stream, about 1 1/2 miles (air) northeast of the Anderson Ranch home, about 6 miles (air) north of the intersection of Scott Road and Highway 70, 7.5 miles (air) northwest of Hallelujah Junction
1601
Comment
POM209471
Salix jepsonii
Carleton R. Ball, Emily Smith, H. P. Bracelin
1932-7-24
682
Lassen
Mt. Lassen Hwy. 0.6 mile N of Sulfur Works Checking Station. Lassen Volcanic National Park.
2043
Comment
JEPS114627
Salix lasiandra subsp. lasiandra
Lowell Ahart, John Dittes
2008-6-22
15044
Lassen
On the bottom of a deep ditch, on the south side of the road levee, in Big Valley, about 2.4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 5.4 miles (air) northeast of Bieber
1257
Comment
CAS-BOT-BC128170
Salix lasiandra var. lasiandra
John Thomas Howell; Gordon H. True
1973-8-1
50149
Lassen
Transition Zone forest in areas of granitic rock, Gold Run Creek road south of Susanville, Diamond Range - Sierra Nevada
1584
Comment
POM209555
Salix lemmonii
Carleton R. Ball, Emily Smith, H. P. Bracelin
1932-7-24
684
Lassen
Mt. Lassen Hwy. 0.6 mile N of Sulfur Works Checking Station. Lassen Volcanic National Park.
2043
Comment
SEINET10417120
Salix lucida subsp. caudata
G. Schoolcraft
1995-5-14
2477
Lassen
W of Susan Hills subdivision, SW of Susanville.
1372
Comment
CHSC93562
Salix lucida subsp. lasiandra
Lowell Ahart; John Dittes
2005-6-2
11925
Lassen
Long Valley, along a small ditch, along the road, near the Anderson Ranch home, 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
CHSC99729
Salix lucida subsp. lasiandra
Lowell Ahart; John Dittes
2008-6-22
15044
Lassen
On the bottom of a deep ditch, on the south side of the road levee, in Big Valley, about 2.4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 5.4 miles (air) northeast of Bieber.
1257
Comment
CAS-BOT-BC126131
Salix scouleriana
John Thomas Howell; Gordon H. True
1973-7-31
50041
Lassen
On road from Janesville to Thompson Peak, Diamond Range
1783
Comment
CDA36352
Salsola gobicola
B. Villegas
2011-8-25
Lassen
Near Wendel; on Wendel Rd., 0.4 mile from Amadee Rd.
0
Comment
JEPS94087
Salsola tragus
Vernon H. Oswald and Lowell Ahart
1998-9-8
9582
Lassen
Ash Creek and Big Swamp 2.2 mi. n. Bieber (on county Rd. 91 (Bieber-Lookout Rd.)); Ash Creek and Big Swamp
1258
Comment
JEPS94499
Salvia aethiopis
Vernon H. Oswald and Lowell Ahart
1997-5-27
8482
Lassen
just n of Susanville (w side of Highway 139 at Lassen Community College); Lassen Community College, Highway 139
1310
Comment
UC669627
Salvia aethiopis
Vesta Holt
1944-6-19
Lassen
roadside near Susanville
Comment
CDA40944
Salvia dorrii subsp. dorrii
Vernon H. Oswald & Lowell Ahart
1998-6-4
9145
Lassen
Spur road on north side of Red Rock Road, 0.6 mile east of Highway 395, south of Constantia.
Comment
SEINET10880384
Sambucus caerulea
Andrew Townesmith
2012-9-4
Townesmith 2398
Lassen
Along California route 44, at milepost 34, ca. 2 miles west of intersection with California route 36.
1671
Comment
CHSC5226
Sambucus melanocarpa
A. Santos
1946-6-17
Lassen
E side of Eagle Lake.
1615
Comment
CHSC12487
Sambucus mexicana
Carol Weld
1969-6-26
45
Lassen
7.8 miles SW of Eagle Lake Field Station.
1584
Comment
UC773940
Sambucus mexicana
L. R. Short and J. Warren
1936-7-28
S- 490
Lassen
Burgess Spring Experiment Range Lassen National Forest
1859
Comment
UC1441325
Sanicula tuberosa
David H. French
1968-6-2
2880
Lassen
about 5 mi e of Westwood (near State Hwy 36)
Comment
SEINET3239873
Santalaceae
R. L. Mathiasen
2010-1
1018
Lassen
16 km W of north entrance to Lassen Nat. Park on Rte. 44
1380
Comment
SEINET3239994
Santalaceae
R. L. Mathiasen
2010-1
1033
Lassen
0.3 km W of Fredonyer Pass on Rte. 36.
1660
Comment
CAS-BOT-BC110336
Sarcobatus vermiculatus
Louella Bass
1982-6-20
s.n.
Lassen
West of Karlo.
Comment
CDA23526
Sarcobatus vermiculatus
Robin Breckenridge
2007-5-1
PDR# 1349824 A
Lassen
Wendel.
0
Comment
NY540267
Sarcobatus vermiculatus
J. T. Howell
1975-7-23
51414
Lassen
Alkaline flat on Highway 395 about 5 miles southeast of Doyle
1310.6
Comment
RSA79261
Sarcobatus vermiculatus
E. K. Balls
1952-10-10
18136
Lassen
5.2 miles W of Standish, Hwy 395, Susanville to Alturas.
1250
Comment
UC7509
Sarcobatus vermiculatus
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3328
Lassen
Honey Lake Valley
1219
Comment
JEPS47551
Saxifraga oregana
Milo S. Baker
1894-7-9
Lassen
Pine Creek
Comment
RSA59813
Saxifraga oregana
E. K. Balls
1950-5-19
14771
Lassen
Above Ash Creek Public Camp, off rd. from Adin to Madeline.
1616
Comment
RSA719710
Schoenoplectus acutus
Michael A. Vincent, K. Levings
2006-7-29
12918
Lassen
Along Rt 395, 46.9 road miles SE of Johnstonville, 13.9 miles N of Sierra County line.
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
RSA0009705
Schoenoplectus acutus var. occidentalis
Marcus E. Jones
1897-6-24
s.n.
Lassen
10 to 15 miles west from Amedee.
1219
Comment
RSA719709
Schoenoplectus pungens
Michael A. Vincent, K. Levings
2006-7-29
12919
Lassen
Along Rt 395, 46.9 road miles SE of Johnstonville, 13.9 miles N of Sierra County line.
Comment
CHSC63613
Schoenoplectus subterminalis
Vernon H. Oswald; Helen Ost, John Ost, M. L. Mini
1994-8-6
6446
Lassen
Caribou Wilderness from the Hay Meadow trailhead N of Chester, at an un-named lake on the S edge of the trail between Hidden Lakes and Long Lake.
2103
Comment
CHSC61594
Scirpus microcarpus
Arthur G. Barrett
1915-8-18
35
Lassen
Plumas National Forest. Laufman Ranger Station.
1463
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
RSA783686
Scirpus nevadensis
R. R. Halse
2010-8-25
8087
Lassen
Along State Hwy 139 ca. 26.2 mi N of Susanville on NE shore of Eagle Lake.
1559
Comment
UC1100879
Scirpus nevadensis
Malcolm A. Nobs, S. Galen Smith
1949-7-22
1073
Lassen
ne side Eagle Lake; ne side Eagle Lake
Comment
UC1100881
Scirpus nevadensis
Verne Grant and Irving Schneider
1947-9-5
8376
Lassen
nw shore Eagle Lake (by Sam Webb's place; Spaulding); nw shore Eagle Lake by Sam Webb's place
Comment
CHSC66422
Scribneria bolanderi
Vernon H. Oswald; Lowell Ahart
1996-6-17
7804
Lassen
Modoc Plateau. Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville. On a flat on the N side of the trail between Devils Corral Trailhead and the 6.0 mile post.
1420
Comment
JEPS11413
Scrophularia desertorum
R. F. Hoover
1940-9-28
4632
Lassen
Susanville
Comment
UC767449
Scrophularia desertorum
R. F. Hoover
1940-9-28
4632
Lassen
Susanville
Comment
SEINET8020059
Scutellaria angustifolia subsp. micrantha
C. G. Gulling
1905-1
s.n.
Lassen
Big Meadows.
Comment
SEINET8020068
Scutellaria angustifolia subsp. micrantha
C. G. Gulling
1905-1
s.n.
Lassen
Big Meadows.
Comment
CAS-BOT-BC5845
Scutellaria holmgreniorum
Noel Herman Holmgren; Patricia K. Holmgren
1980-7-5
9524
Lassen
Upper Smoke Creek drainage, 21.9 km (13.6 mi) from U.S. Hwy 395 via Rye Patch Canyon
1580
Comment
CAS-BOT-BC214261
Scutellaria nana
G. Schoolcraft
1999-7-7
2855
Lassen
N. end of Eagle Lake just ne. of Eagle Lake Campground
1584
Comment
CAS-BOT-BC214262
Scutellaria nana
G. Schoolcraft
1986-6-18
1630
Lassen
S. side of Smoke Creek between Shinn & Smoke Creek Ranches
1493
Comment
CAS-BOT-BC214268
Scutellaria nana
Richard Olmstead
1984-6-27
584
Lassen
Rye Patch Canyon Rd., 13.2 mi E of US 395, turnoff ca 14 mi. S of Ravendale
1548
Comment
CAS-BOT-BC214269
Scutellaria nana
John Thomas Howell
1934-6-10
11879
Lassen
12 miles n. of Susanville on road to Horse Lake
Comment
SEINET13947826
Scutellaria nana
Clarence R. Quick
1964-1
64 -92
Lassen
Cal Mt. E of Poison Lake; ca 5800 ft alt.
1768
Comment
SEINET13947834
Scutellaria nana
Noel H. Holmgren, Patricia K. Holmgren
1980-1
9524
Lassen
Upper Smoke Creek drainage, 21.9 km from US Hwy 395 via Rye Patch Canyon, 24 km airline distance SE of Ravendale; 1580 m alt., T33N, R16E, SEC36
1580
Comment
CAS-BOT-BC240087
Secale cereale
David D. Keck; J. Clausen
1935-6-24
3750
Lassen
2 mi. S. of Ravendale
1464
Comment
RSA647520
Secale cereale
Marion P. Harthill
1972-6-16
788
Lassen
Doyle
1372
Comment
SEINET10517203
Secale cereale
Douglas G. LeDoux, David B. Dunn
1973-5-25
LeDoux 887
Lassen
Collected 3 mi N of Milford. On Hwy 395 at Honey Lake Campgrounds.
Comment
UC11232
Sedum stenopetalum
M. S. Baker and Frank Nutting
1894-7-7
Lassen
Harvey's Ranch
Comment
SEINET10801294
Senecio aronicoides
Katherine L. Morris, David B. Dunn; Melvin L. Conrad
1973-5-25
Morris 230
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
JEPS109870
Senecio hydrophiloides
Dean W. Taylor
2007-6-14
20129
Lassen
between Gordon Lake and Bullard Lake, along Forest Road 31N31 0.3 miles NE of junction with Forest Road 34N25 (this the junction at the northwest end of Gordon Lake)
1828
Comment
HSC95295
Senecio hydrophilus
Gordon Leppig, J. Cromwell
1997-7-27
615
Lassen
Modoc National Forest, Blue Lake Ranch.
1970
Comment
UCD135547
Senecio integerrimus
Grady L. Webster
1989-5-13
7723
Lassen
2.5 miles east of Beckworth Pass.
1493
Comment
SEINET10908456
Senecio integerrimus
Paul Gallian, David B. Dunn
1971-6-2
Gallian 473
Lassen
6 mi. N of Hallelujah Jct. on U.S. Hwy. 395, in Artemisia tridentata, Pinyon pine, Jeffery pine along high ridge and in sandy wash.
Comment
UCD135546
Senecio integerrimus
Grady L. Webster
1989-5-13
7702
Lassen
Butterfly Valley area. Aound 1 mile northwest of crossing of Big Blackhawk Creek.
1066
Comment
JEPS85743
Senecio integerrimus var. exaltatus
Roy E. Buck and Robert A. Price
1988-6-26
1031
Lassen
ca 30 air km nne Susanville (on subsidiary peak ca 0.5 air km n of main summit); Fredonyer Peak
2377
Comment
UC1063253
Senecio integerrimus var. exaltatus
A. Simontacchi
1940-5-15
712
Lassen
10.2 mi e Coyote Spring; Lassen National Forest, Halls Flat Quad.
1699
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
CAS-BOT-BC363984
Senecio integerrimus var. major
John Thomas Howell; Gordon H. True; Margaret Williams
1973-5-12
49176
Lassen
Elysian Valley northwest of Janesville
1325
Comment
CHSC26149
Senecio triangularis
Detzer; Sacks
1977-7-24
1
Lassen
Along streambank, ca. 3 mi se of Milford, .5 mi. se of Laufman Ranger Station on unimproved USFS road.
1481
Comment
UC1587031
Sidalcea glaucescens
G. Schoolcraft
1991-7-30
2198
Lassen
East slope of Widow Mountain
1859
Comment
UC1924263
Sidalcea glaucescens
Debra Valov
2004-5-31
2004225
Lassen
Bieber; off County A2 c. 8 km east of Hwy 299
1274
Comment
CHSC30043
Sidalcea oregana
Cindy Prouty
1978-7-27
7
Lassen
Little Antelope Valley, W of Eagle L.
1792
Comment
UC1037274
Sidalcea oregana
Leo Whitney
1934-7-10
1760
Lassen
14 mi w of Eagle Lake (near Harvey Valley Spring, Lassen National Forest, Harvey Valley); Lassen National Forest, Harvey Valley
1737
Comment
POM230480
Sidalcea oregana subsp. oregana
D. D. Keck, Jens Clausen
1935-6-24
3740
Lassen
2 miles S. of Ravendale,
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
POM260184
Sidalcea oregana subsp. oregana
C. L. Hitchcock
1940-5-26
6643
Lassen
Overflow of Pitt River, 1 mile W of Bieber
Comment
NY54618
Sidalcea oregana var. maxima
N. H. Holmgren
1980-7-3
9479
Lassen
Madeline Plains, Westside Road, 9 km (5.6 mi) west of U.S. highway 395, 16 km (10 mi) airline distance northwest of Termo
1620
Comment
SEINET9005527
Sidalcea oregana var. spicata
C. G. Gulling
1905-1
s.n.
Lassen
Big Meadows.
Comment
UC1483814
Silene bernardina
G. Schoolcraft
1979-6-7
129
Lassen
northern Skidaddle Mountains
2011
Comment
UC1523760
Silene bernardina
Gary Schoolcraft
1982-6-23
727
Lassen
Ft. Sage Mts.
1828
Comment
JEPS50913
Silene douglasii
Brown and Wieslander
1922-7-23
33
Lassen
Martin Sprs Eagle Lake, Martin Sprs
Comment
UC8440
Silene douglasii
M. S. Baker and Frank Nutting
1894-7-5
Lassen
Dixey Valley
Comment
CHSC65097
Silene menziesii
Vernon H. Oswald; Lowell Ahart
1995-7-24
7137
Lassen
High Cascade Range. Along Pine Creek on the upstream side of Forest Road 31N25, at the NW corner of Upper Stephens Mdws., ca. 3 mi NNE of Silver Lake, N of Lake Almanor. At the NE corner of the impoundment on Pine Creek.
1905
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
JEPS123843
Silene nuda
Lowell Ahart, John Dittes
2015-7-14
20334
Lassen
About 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber.
Comment
UC1618235
Silene nuda
Barbara Ertter
1988-7-25
7867
Lassen
ca 1.5 mi e Diamond Peak (ca 10 airmi due s of Susanville, ridge of Diamond Mts.); ridge of Diamond Mts., e of Diamond Peak
2255
Comment
CAS-BOT-BC389548
Silene nuda
David D. Keck
1944-7-8
5446
Lassen
Sierra Nevada. 2 mi. E. of Westwood, meadow leading to Mountain Meadows Reservoir
1524
Comment
CAS-BOT-BC389549
Silene nuda
David D. Keck
1944-7-8
5446
Lassen
Sierra Nevada. 2 mi. E. of Westwood, meadow leading to Mountain Meadows Reservoir
1524
Comment
JEPS50951
Silene occidentalis subsp. occidentalis
Brown and Wieslander
1922-7-23
32
Lassen
Martin Sprs. Eagle Lake, Martin Sprs.
Comment
CHSC91318
Sisymbrium altissimum
Lowell Ahart; John Dittes
2005-6-1
11850
Lassen
On the west side of the poor dirt road, about 1/2 mile west of Scott Road, Long Valley, about 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.9 miles (air) northwest of Hallelujah Junction.
1448
Comment
JEPS107467
Sisymbrium altissimum
Lowell Ahart, John Dittes
2005-6-1
11850
Lassen
On the west side of the poor dirt road, about 1/2 mile west of Scott Road, Long Valley, about 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.9 miles (air) northwest of Hallelujah Junction
1448
Comment
CAS-BOT-BC75080
Sisymbrium altissimum
Ira L. Wiggins; Dorothy B. Wiggins
1961-6-11
16333
Lassen
13.5 miles east of Susanville.
Comment
SEINET10448851
Sisymbrium altissimum
Billy Joe Cox, Paul Gallian
1971-2-2
Cox 2583
Lassen
6 mi. S. Of adin; along calif. 139 Right-of-way; in basalt-clay, grassy road bank; artemesia juniper assoc.
1372
Comment
CHSC66274
Sisyrinchium bellum
Vernon H. Oswald; Lowell Ahart
1996-6-24
7875 .1
Lassen
Modoc Plateau. Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake. Bordering Papoose Creek where it leaves the N end of the meadow.
1633
Comment
JEPS88552
Sisyrinchium bellum
Vernon H. Oswald and Lowell Ahart
1996-6-24
7875 .1
Lassen
ca 0.5 mi e Eagle Lake Rd. (A1) (and 2.5 mi s of Eagle Lake, in meadow bordering Papoose Creek where it leaves the n end of the meadow); Modoc Plateau, Papoose Meadows, Papoose Creek
1633
Comment
UC1032501
Sisyrinchium bellum
A. Simontacchi
1940-6-15
863
Lassen
2.3 mi ssw of Black Mountain; Lassen National Forest
1798
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
UCD138789
Sisyrinchium bellum
Gerald Dickinson
1963-7-2
71
Lassen
east of Willow Creek campground, south of Hayden Hill, State Highway 139.
1219
Comment
UC1542947
Sisyrinchium idahoense var. idahoense
G. Schoolcraft
1987-6-23
1749
Lassen
along Ash Valley Rd. Ash Valley
1554
Comment
UC21380
Sium suave
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3363
Lassen
Honey Lake Valley
Comment
CDA38566
Sium suave
F. A. Taylor
1933-7-5
s.n.
Lassen
Bieber.
0
Comment
UC1191779
Solanum triflorum
Verne Grant, Irving Schneider
1947-8-1
8234
Lassen
east end of Tule Lake Tule Lake
Comment
UCR67459
Solidago occidentalis
George K. Helmkamp
1990-9-23
G- 10
Lassen
north of Ravendale
1677
Comment
POM38169
Sonchus asper
Marcus E. Jones
1897-6-19
s.n.
Lassen
Chat
1616
Comment
CHSC66869
Sparganium erectum subsp. stoloniferum
Vernon H. Oswald; Lowell Ahart
1996-9-10
8273
Lassen
Mountain Meadows Reservoir SW of Westwood. Along the northwest shore of the reservoir between the railroad and Indian Ole Dam.
1539
Comment
NY482319
Spergularia diandra
G. Schoolcraft
1998-6-8
2734
Lassen
N. base of Ft. Sage Mtns.
1249.7
Comment
HSC68557
Sphaeromeria cana
Gary Schoolcraft
1979-7-6
127
Lassen
N side of Skedaddle Mtns.
1997
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
RSA0008983
Sphaeromeria potentilloides var. potentilloides
Marcus E. Jones
1897-6-19
s.n.
Lassen
Chat.
1524
Comment
UC13098
Spiraea densiflora
M. S. Baker and Frank Nutting
1894-7-30
Lassen
Silver Lake
Comment
RSA18166
Spiraea douglasii
Carl B. Wolf
1929-9-1
3779
Lassen
Mt. Lassen Nat'l Park, between Grassy Lake and Snag Lake.
Comment
CHSC61074
Spiranthes porrifolia
Vernon H. Oswald
1993-8-3
5754
Lassen
Cooper Swamp located E of Siver Lake just E of the Caribou Wilderness, ca. 13 mi (air) N of Lake Almanor.
1932
Comment
HSC95184
Spiranthes porrifolia
Gordon Leppig
1998-8-17
1038
Lassen
Modoc National Forest, Blue Lake Ranch
1970
Comment
JEPS64515
Spiranthes romanzoffiana
Brown and Wieslander
1922-7-30
49
Lassen
Martin Sprs. Eagle Lake
Comment
CHSC5277
Stachys ajugoides var. rigida
P. Balch
1955-7-17
Lassen
Papoose Creek, near Gallatin's. Eagle Lake.
1615
Comment
UC1483862
Stachys ajugoides var. rigida
G. Schoolcraft
1980-8-13
348
Lassen
n side Diamond Mtn.
1950
Comment
NY608067
Stanleya viridiflora
G. Schoolcraft
1998-7-14
2763
Lassen
Along Karlo Road, 1 mile south of Biscas Reservoir Road.
1356.4
Comment
SEINET11604939
Stanleya viridiflora
L. Bass
1982-7-25
10 -82
Lassen
Near Karlo, ca 12 miles N of Litchfield.
1356
Comment
SD8165
Stellaria calycantha
Mrs. R. M. Austin
August 1882
Lassen
Comment
SEINET5337330
Stellaria longipes
C. G. Gulling
1905-1
1551
Lassen
Big Meadows
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
UC1755281
Stenotus lanuginosus var. lanuginosus
Dean W. Taylor
2007-6-14
20127
Lassen
Upper Gooch Valley, Forest Road 35N05 (County Road 22) 0.3 miles north of junction with Forest Road 34N45
1889
Comment
CAS-BOT-BC375596
Stephanomeria lactucina
Alice Eastwood
1912-8-22
s.n.
Lassen
Trail from Morgans Springs to Lassen Butte Region
Comment
SEINET10474966
Stephanomeria spinosa
Mary Susan Taylor
1982-8-19
Taylor 5020
Lassen
T22N R17E sw/nw sec 5. Beckwourth Pass quad. Along dirt rd (old RR tracks), s of and paralleling Hwy 70, just se of Beckwourth Pass. Sagebrush Scrub; 5200 ft. Dry sandy soil.
1585
Comment
CAS-BOT-BC322921
Stephanomeria tenuifolia
George W. Gillett
1957-7-26
901
Lassen
Butte Lake, Lassen Volcanic National Park
1844
Comment
CHSC118490
Stipa comata var. comata
Don Lepley
2015-6-16
Lassen
Lassen National Forest. Eagle Lake Ranger District. About 140 yards souteast of central entrance to Sandy Beach cinder pits and 1.9 air miles north-northwest of Spalding marina. UTM 687661 x 4506890.
1563
Comment
CHSC118491
Stipa hymenoides
Don Lepley
2015-6-16
Lassen
Lassen National Forest. Eagle Lake Ranger District. A little north of County Road A-1 about 1/3 mile southwest of Sandy Beach cinder pits and two air miles north of Spalding marina. UTM 686984 x 4506793
1563
Comment
CAS-BOT-BC519057
Streptopus amplexifolius
Alice Eastwood
1912-8-22
1765
Lassen
Trail to Sulphur Mine from Morgans, Lassen Butte Region
Comment
UCD149957
Stuckenia filiformis subsp. alpina
William Anderson
1963-6-24
s.n.
Lassen
Hartson Reservoir.
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
CHSC63602
Subularia aquatica var. americana
Vernon H. Oswald; John Ost, Mary Lou Mini
1994-8-6
6447
Lassen
Caribou Wilderness along the west loop of the trail from the Hay Meadow to Long Lake. On the margin of a pond.
2065
Comment
CHSC27669
Swertia albicaulis var. nitida
Robert A. Schlising
1978-7-9
3312
Lassen
S of Eagle Lake; forested area between Papoose Meadows and Eagle Lake Road.
Comment
CHSC64841
Symphoricarpos rotundifolius var. rotundifolius
Vernon H. Oswald
1995-6-26
6932
Lassen
Modoc Plateau. Ash Valley Rd. (Lassen 527), 9.9 mi W of Madeline, ca 0.5 mi W of the reservoir at Fleming Sheep Camp and along the stream coming from the same.
1609
Comment
UCD136510
Symphyotrichum ascendens
Verne Grant; Irving Schneider
1947-9-6
8391
Lassen
west of Fleming Ranch Headquarters, near Wendel.
Comment
CAS-BOT-BC97606
Symphyotrichum campestre
Margaret Williams
1974-7-27
74 -L-67
Lassen
Burned area near Hallelujah Junction, west of Hwy 395 and south of Hwy 70
1493
Comment
RSA324710
Taeniatherum caput-medusae
A. Tiehm, James Young, Raymond Evans
1984-6-7
8597
Lassen
Flats on the northwest side of Shaffer Mountain, 9 air miles north-northwest of Litchfield.
1387
Comment
JEPS94121
Tamarix parviflora
Vernon H. Oswald and Lowell Ahart
1998-5-22
9096
Lassen
Hwy. 395 at an intermittent drainage crossing the rd. 2.3 mi. s. Milford
Comment
CAS-BOT-BC376848
Taraxacum
John Thomas Howell
1934-6-14
12139
Lassen
Near Lost Lake, Warner Mts.
2438
Comment
CHSC5066
Taraxacum officinale
D. L. Stites
1967-6-24
30
Lassen
Collected ca. 3 mi. se ELBS, Upper Murrer Meadow.
1524
Comment
UC36609
Taraxacum officinale
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3383
Lassen
Honey Lake Valley
Comment
CAS-BOT-BC376899
Taraxacum officinale
1927-6-19
17
Lassen
Lassen National Forest. Norval Flat
1747
Comment
CAS-BOT-BC376900
Taraxacum officinale
A. M. Vollmer; L. Beane
1953-7-1
62
Lassen
Along Halls Flat road, beginning 6 miles west of Susanville to McArthur
1554
Comment
CHSC6192
Taraxia subacaulis
P. Balch
1955-6-1
Lassen
Eagle Lake. Stephen's Meadows.
1905
Comment
JEPS94483
Taraxia subacaulis
Vernon H. Oswald and Lowell Ahart
1997-5-27
8521
Lassen
3.6 mi ne of Highway 139 (small impoundment on Coyote Flat Draw crossing Forest Route 38N04 between Highway 139 near Willow Creek Guard Station and Coyote Flat); Coyote Flat Draw crossing Forest Route 38N04
1731
Comment
CHSC112988
Taraxia tanacetifolia
Lowell Ahart; John Dittes
2013-7-23
18885
Lassen
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
CHSC4967
Taraxia tanacetifolia
R. Carter
1967-6-23
547
Lassen
In upper part of Murrer's Meadow.
1584
Comment
CHSC59758
Taraxia tanacetifolia
Mary Meyer; Teresa Prendusi
1980-5-8
Lassen
In meadows by creek in Balls Canyon.
1219
Comment
SBBG20782
Taraxia tanacetifolia
A. I. Richardson
1961-5-31
11
Lassen
near Seaid Valley Reservoir
Comment
SJSU4286
Taraxia tanacetifolia
R. L. Fisher
1958-6-16
Lassen
c. 6 mi S of Madeline
Comment
CHSC34921
Tetradymia canescens
M. S. Taylor
1981-7-13
4008
Lassen
Ramelli Ranch, e side, s of Feather River, ca. 2 mi ese of Beckwourth.
1487
Comment Read comments Jun 9 2010
CHSC429
Tetradymia canescens
P. Balch
1955-7-23
Lassen
Antelope Grade, Eagle Lake.
1615
Comment
RSA783307
Tetradymia canescens
R. R. Halse
2010-8-26
8090
Lassen
Along State Hwy 70 at Beckwourth Pass ca. 4.3 miles west of its junction with US Hwy 395 or 1.6 miles east of Sierra Valley.
1584
Comment
SBBG65937
Tetradymia glabrata
E. Rockwell
-Jun-1925
295
Lassen
Honey Lake Valley
1371
Comment
UC830638
Tetradymia glabrata
A. A. Heller
1938-6-23
15205
Lassen
near Mapes (on U.S. Hwy 395)
1310
Comment
CHSC64762
Tetradymia spinosa
Vernon H. Oswald
1995-5-24
6771
Lassen
Modoc Plateau. Wendel Rd. (Lassen 320) 0.4 mi e of the e end of Amedee Rd. (6.1 mi e of Wendel). On a flat bordering the road.
1219
Comment
UC36632
Tetradymia spinosa
J. Burtt Davy
Jun 17 1897-Jun 24 1897
3341
Lassen
Honey Lake Valley
Comment
CHSC1496
Thalictrum fendleri
1944-7-7
Lassen
Bogard.
1722
Comment
CHSC93248
Thelypodium crispum
John Dittes; Scott Chamberlain
2004-6-28
1012
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-mile east of Plumas County line; meadow.
1445
Comment
UC10930
Thelypodium crispum
M. S. Baker and F. Nutting
1894-7-6
Lassen
Dixey Valley
Comment Read comments Oct 10 2006
POM95733
Thelypodium crispum
Marcus E. Jones
1897-6-30
s.n.
Lassen
Ranch below Eagle Lake. Susanville, 4 miles.
1524
Comment
UCD55274
Thelypodium flexuosum
Ellen Dean
2006-5-15
3084
Lassen
East of town of Susanville, along County Road A27 (