Search Results — 2000 specimen records retrieved (1629 records with coordinates)
(That's the default maximum. Contact Jason Alexander for larger data requests.)

Results for search: County=LASSEN; Source=All;   
Map/download results:

BerkeleyMapper with layers and yellow flags

Download Options:
Select all records · Select records with coordinates

Include annotations and voucher information

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

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

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

Click on column header to sort data (* sorts by family); click in leftmost checkbox to select record. CCH Help Page.
A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC330610  Acer glabrum var. glabrum Clare B. Hardham 1969-8-28 17438 Lassen Sierra Nevada. West of Janesville. Comment
  SEINET7893918  Acer macrophyllum E. Brooks 1927-5-9 s.n. Lassen 80 miles N of Reno. Comment
  UC506903  Achillea millefolium George A. Fischer and Irwin H. Johnson 1933-7-14 F 275 Lassen Patterson Flat; Lassen National Forest 1737 Comment
  SD8826  Achillea millefolium R. M. Austin 1879-1 Lassen Boiling Lake, near Lassen Peak Comment
  UC1024644  Achnatherum Leo Whitney 1933-7-1 2214 Lassen Slate Creek, ca. 8 mi nw Eagle Lake; Lassen National Forest Comment
  CAS-BOT-BC260405  Achnatherum hymenoides P. B. Kennedy 1901-6-10 s.n. Lassen Railroad Station, Constantia Comment
  CAS-BOT-BC210663  Achnatherum lemmonii John Thomas Howell 1976-7-19 51980 Lassen On Gold Run Creek southwest of Susanville 1386 Comment
  UCD50603  Achnatherum lemmonii John Thomas Howell 1976-7-19 51980 Lassen Transition Zone forest on Gold Run Creek southwest of Susanville. Lassen County. 1386 Comment
  CHSC64900  Achnatherum nevadense Vernon H. Oswald 1995-6-19 6879 Lassen Modoc Plateau. Between Litchfield and Ravendale on Smoke Creek Ranch Rd., 0.3 mi e of Hwy. 395. 1383 Comment
  JEPS456  Achnatherum occidentale subsp. californicum G. S. Crew and C. S. Robinson 1927-6-25 29 Lassen near Westwood <Tet?>; Lassen Forest 1706 Comment
  UC1133069  Achnatherum occidentale subsp. occidentale K. E. Bradshaw 1939-5-27 231 Lassen Black Mt. Experimental Forest - Plot 39-1, s end Lassen National Forest, Halls Flat Quadrangle Comment
  UC717977  Achnatherum occidentale subsp. occidentale David D. Keck 1944-7-8 5451 Lassen 1.5 mi w Susanville (rim of plateau overlooking Susan River canyon); Sierra Nevada, Susan River 1341 Comment
  CAS-BOT-BC218615  Achnatherum occidentale subsp. pubescens John Thomas Howell; Gordon H. True; Margaret Williams 1973-6-28 49486 Lassen Elysian Valley west of Janesville, Sierra Nevada 1325 Comment
  CAS-BOT-BC218616  Achnatherum occidentale subsp. pubescens Margaret Williams; Steven Williams 1974-7-26 74 -L-37 Lassen Burned area near Hallelujah Junction, west of Hwy 395 and south of Hwy 70, Sierra Nevada 1493 Comment
  UC1024687  Achnatherum occidentale subsp. pubescens Leo Whitney 1933-7-15 2158 Lassen ca. 16 mi w of upper end of Eagle Lake (Harvey Mountain); Lassen National Forest Comment
  UC1024939  Achnatherum occidentale subsp. pubescens Leo Whitney 1935-6-26 3334 Lassen Camp 10, Fruit Grower's Supply Company Lassen National Forest Comment
  UC1024959  Achnatherum occidentale subsp. pubescens Leo Whitney 1935-6-24 3303 Lassen ca. 13 mi w of n end of Eagle Lake (Squaw Valley); Squaw Valley Comment
  UC1137654  Achnatherum occidentale subsp. pubescens George A. Fischer and Irwin H. Johnson 1933-7-12 218 Lassen 1 1/2 mi e Hall's Flat Ranger Station; Lassen National Forest 1722 Comment
  UCD18960  Achnatherum occidentale subsp. pubescens Raymond D. Ratliff 1965-7-12 16 Lassen Lassen National Forest, Harvey Valley Allotment (HV-81-76 and 21-15). 1737 Comment
  UCD32665  Achnatherum occidentale subsp. pubescens Beecher Crampton 1954-7-5 2064 Lassen Lassen County, 4.5 miles west of Susanville, along state highway 36. 1432 Comment
  UCD32666  Achnatherum occidentale subsp. pubescens Beecher Crampton 1954-7-5 2066 Lassen Lassen County, 5.5 miles west of Susanville, along highway 36. 1447 Comment
  UCD32668  Achnatherum occidentale subsp. pubescens Beecher Crampton 1954-7-6 2069 Lassen Lassen County, 1 mile east of Johnstonville, along US highway 1395. 1219 Comment
  UCD51167  Achnatherum occidentale subsp. pubescens A. H. Shunk 1923-8-1 s.n. Lassen Madeline. Comment
  UCD51192  Achnatherum occidentale subsp. pubescens Beecher Crampton 1964-6-25 7071 Lassen 25 miles n.w. Susanville, State Hwy. 44, Bogard Ranger Station, Lassen National Forest. 1722 Comment
  UCD51194  Achnatherum occidentale subsp. pubescens L. Whitney 1935-6-24 s.n. Lassen Squaw Valley. Comment
  UCD51215  Achnatherum occidentale subsp. pubescens Beecher Crampton 1954-7-5 2064 Lassen Lassen County, 4.5 miles west of Susanville, along state highway 36. 1432 Comment
  UCD51216  Achnatherum occidentale subsp. pubescens R. Tofsrud 1947-7-1 222 Lassen 12 mi. E. of Madeline. Comment
  UC1024911  Achnatherum thurberianum Leo Whitney 1935-6-25 3372 b Lassen ca 13 mi w of upper end Eagle Lake; Ashurst Mountain Comment
  UC584332  Achnatherum thurberianum G. L. Stebbins Jr. and J. A. Jenkins 1937-7-8 2226 Lassen 6 mi s Ravendale 1660 Comment
  UCD51301  Achnatherum webberi Beecher Crampton 1954-7-6 2074 Lassen Along US Hwy 395, 15 miles south of Ravendale. 1676 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
  UC1037221  Aconitum columbianum Leo Whitney 1934-7-23 1589 Lassen ca. 7 - 8 mi. s.w. Eagle lake (Bridge Creek Camp near Bridge Creek); Lassen Nat'l Forest, Bridge Creek Camp 1737 Comment
  UC467713  Aconitum columbianum Franklin P. Nutting 1900-7-2 Lassen Pine Creek Comment
  CAS-BOT-BC412863  Aconogonon davisiae Ray Hanson 1954-8-23 s.n. Lassen Lassen Park: near Jakey Lake 2112 Comment
  UCD98583  Aconogonon davisiae Hans Leschke 1945-9-14 s.n. Lassen Mt. Lassen trail. 2621 Comment
  UCD124873  Agastache parvifolia John F. Sorenson 1986-7-5 s.n. Lassen 9 miles southeast of Termo, Bailey Creek drainage; Bailey Creek above Bailey Reservoir. Comment
  CHSC23525  Agastache urticifolia Wayne O. Baum 1971-7-14 71 -68 Lassen N slope of Gallatin Peak. 2011 Comment
  UC1483811  Agastache urticifolia G. Schoolcraft 1979-7-5 122 Lassen n face Observatioin Peak; n face of Observation Peak 1828 Comment
  CAS-BOT-BC30239  Ageratina occidentalis Clare B. Hardham 1969-8-28 17433 Lassen West of Janesville Comment
  UC29341  Agoseris X dasycarpa M. S. Baker and Frank Nutting 1894-7-5 Lassen Dixey Valley Dixey Valley Comment
  SEINET10925084  Agoseris glauca Paul Gallian, David B. Dunn 1971-6-2 Gallian 510 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
  CHSC107994  Agoseris heterophylla Lowell Ahart; John Dittes 2011-6-20 17485 Lassen About 15 yards west 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
  CHSC68840  Agoseris heterophylla Vernon Oswald; Lowell Ahart 1997-6-24 8601 Lassen South of Susanville on the north side of Diamond Mtn at a stream on Forest Rd. 29N43, 3.5 miles east of Gold Run Rd. (20N10). 1655 Comment
  UC1924573  Agoseris heterophylla var. heterophylla Debra Valov 2006-5-29 2006023 Lassen Bieber off County Rd A2 c. 8.7 km east of Hwy 299 1280 Comment
  UC773952  Agoseris parviflora L. R. Short and J. Warren 1936-6-5 S- 372 Lassen Burgess Spring Experiment Range Burgess Spring Experiment Range 1798 Comment
  CAS-BOT-BC13413  Agoseris retrorsa Louella Bass 1973-5-29 82 Lassen Elysian Valley 1325 Comment
  UC1136778  Agoseris retrorsa L. R. Short and W. McNulty 1936-6-15 S- 436 Lassen Burgess Spring Exp. Range 1848 Comment
  CHSC66418  Agropyron desertorum Vernon H. Oswald; Lowell Ahart 1996-6-17 7800 Lassen Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville. Modoc Plateau. Ca.0.1 mi E of Devils Corral Trialhead. 1420 Comment
  SEINET13680160  Agropyron desertorum P. Gallian, David B. Dunn 1971-6-2 484 Lassen 5 mi. S of Milford near Honey Lake on U.S. Hwy. 395.; 0 1250 Comment
  UC60210  Agrostis J. Burtt Davy Jun 17 1897-Jun 24 1897 3303 Lassen Honey Lake Valley Comment
  HSC69074  Agrostis exarata Gary Schoolcraft 1980-8-13 351 Lassen N side of Diamond Mountain, south of Susanville 1951 Comment
  SACT000106  Agrostis exarata Malcolm Nobs, S. Smith 1949-7-21 Lassen shallow marshy stream from springs, 4 miles north of madeline Comment
  UC1776698  Agrostis exarata G. Schoolcraft 1994-8-1 2389 B Lassen About 2 miles W of Boot Lake 2255 Comment
  UCD52277  Agrostis exarata Malcolm A. Nobs; Galen Smith 1949-7-21 1057 Lassen 4 miles N of Madeline. Comment
  SEINET4341020  Agrostis exarata G. Schoolcraft 1994-8-1 2382 Lassen About 2 miles west of Boot Lake 2256 Comment
  CAS-BOT-BC139295  Agrostis idahoensis John Thomas Howell; Gordon H. True; Margaret Williams 1973-6-28 49523 Lassen Sierra Nevada. Elysian Valley, west of Janesville. 1325 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
  CAS-BOT-BC138622  Agrostis stolonifera H. S. Yates 1936-8-11 6069 Lassen Baxter Creek. 1280 Comment
  RSA129202  Agrostis stolonifera H. S. Yates 1936-8-11 6069 Lassen Bexter Creek [Baxter? creek]. Susanville. 1280 Comment
  SEINET5335984  Agrostis stolonifera M. J. Williams 1974-7-26 74 -L-39 Lassen 2 mi. W of Hallelujah Junction, S of highway 70 1494 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
  POM119135  Alisma triviale Marcus E. Jones 1897-6-24 s.n. Lassen 10 to 15 miles west from Amedee. 1219 Comment
  RSA0039525  Alisma triviale Lowell A. Ahart, John Dittes 2012-7-9 18294 Lassen About 100 yards southeast of the tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CAS-BOT-BC459569  Allium acuminatum G. Schoolcraft 1986-5-19 1574 Lassen North slope of Bald Mtn., Susanville 1280 Comment
  CAS-BOT-BC461096  Allium anceps B. Bartholomew; M. Gilbert; L. Skog 1993-5-13 6553 Lassen Just S of Ravendale 1580 Comment
  UC1567422  Allium atrorubens var. atrorubens G. Schoolcraft 1989-5-31 1888 Lassen slopes of Skedaddle Creek n Wendel Rd.; Skedaddle Creek 1402 Comment
  CHSC27661  Allium campanulatum Robert A. Schlising 1978-7-1 3302 Lassen S of Eagle Lake at E side of Mahogany Lake. 2060 Comment
  CHSC69845  Allium lemmonii D. W. McNeal 1983-6-5 2840 Lassen Beside Eagle Lake Rd. (Lassen Co. Hwy. A-1) ) 0.5 mi. n. of Hwy. #36. Comment
  RSA27674  Allium lemmonii C. L. Hitchock 1940-5-26 6640 Lassen Overflow of Pitt River, 1 mile west of Bieber, in adobe soil Comment
  CHSC7662  Allium parvum Beverley J. Wise 1969-4-10 139 Lassen 2.5 mi. south of Susanville on Las. Co. Rd. 204. 1310 Comment
  UC584334  Allium parvum G. L. Stebbins Jr. and J. A. Jenkins 1937-7-9 2274 Lassen on bare summit ridge and ridges sw Diamond Mt. (s of Susanville) Comment
  JEPS103165  Allium parvum Beth Corbin 2002-4-11 1055 Lassen Near Skedaddle Ranch Rd, ca 1/2 mi ENE of East Side Reservoir. 1493 Comment
  SEINET12058087  Allium parvum Unknown 1992-3-31 618 A Lassen Ash Valley, ca 15 road mi SE of Adin via Ash Valley Road Comment
  CAS-BOT-BC474074  Allium platycaule John Thomas Howell; Gordon H. True 1973-9-1 s.n. Lassen Headwaters of Baxter Creek, Diamond Mts, Sierra Nevada 2164 Comment
  RSA367108  Allium platycaule Rockwell 1925-7-1 s.n. Lassen Beckwith Comment
Read comments
Nov 17 2011
  CAS-BOT-BC476625  Allium tolmiei B. Bartholomew; M. Gilbert; L. Skog 1993-5-13 6563 Lassen U.S. Hwy. 395 6.0 km N of railroad crossing and 20.1 km N of Litchfield. 1330 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
  JEPS88576  Alopecurus aequalis Vernon H. Oswald and Lowell Ahart 1996-6-24 7873 Lassen Papoose Meadows located 2.5 mi s of Eagle Lake (and 0.5 mi e of Eagle Lake Road (A1), along Papoose Creek where it leaves the n end of the meadow, Modoc Plateau); Modoc Plateau, Papoose Meadows, Papoose Creek 1633 Comment
  SEINET3917718  Alopecurus aequalis A. A. Beetle 1941-6-28 2795 Lassen California, Lassen County, 10 miles west of Chester, rte. 36.; 0 Comment
  SEINET7295647 Image available Alopecurus aequalis A. A. Beetle 1941-1 2795 Lassen 10 miles west of Chester, rte 36 Comment
  UC1567403  Alopecurus aequalis G. Schoolcraft 1989-7-18 1976 Lassen s. of Clark's Valley Rd. near Buck's Spring 1572 Comment
  CHSC117285  Alopecurus carolinianus Lowell Ahart; John Dittes 2016-7-15 21214 Lassen About 300b yards west of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) mortheast of Bieber, Big Valley. 1261 Comment
  UC1136824  Alopecurus geniculatus George A. Fischer and Irwin H. Johnson 1933-7-11 F 190 Lassen Dry Lake Lassen Nat'l Forest, Grass Valley, Dry Lake 1694 Comment
  SEINET5340073  Alyssum desertorum J. A. Young 1982-1 s.n. Lassen M. Meyer's Ranch, Adin. 1372 Comment
  JEPS93815  Alyssum simplex Vernon H. Oswald and Lowell Ahart 1998-6-4 9144 Lassen s of Constantia (at parking area at end of spur road on n side of Red Rock Road 0.6 mi e of Highway 395); Red Rock Road 1389 Comment
  CHSC113078  Amaranthus californicus Lowell Ahart; John Dittes 2013-7-22 18860 Lassen Bottom of a dry bare drainage, 50 yards west of the road levee, about 250 yards south of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CAS-BOT-BC42890  Ambrosia acanthicarpa John Thomas Howell 1961-9-25 36973 Lassen East side of Beckwourth Pass 1554 Comment
  JEPS40951  Ambrosia acanthicarpa R. F. Hoover 1940-10-5 4666 Lassen Wendel Comment
  RSA132023  Ambrosia acanthicarpa Delzie Demaree 1959-8-18 41520 Lassen P.O. Termo. Comment
  CAS-BOT-BC142540  Amelanchier utahensis Gary Schoolcraft 1984-6-5 1203 Lassen Upper Spencer Basin, 29-16-24 1889 Comment
  CAS-BOT-BC142542  Amelanchier utahensis George W. Gillett 1957-7-26 903 Lassen Butte Lake, point of rocks west of outlet and above trail - Lassen Volcanic National Park 1844 Comment
  UC506908  Amelanchier utahensis George A. Fischer and Irwin H. Johnson 1933-7-14 F 270 Lassen Lassen Forest 1737 Comment
  CAS-BOT-BC222252  Amsinckia Alice Eastwood; John Thomas Howell 1940-6-11 7967 Lassen Eastern Fall River Valley Comment
  CHSC99501  Amsinckia menziesii Lowell Ahart; John Dittes 2008-6-20 14909 Lassen On the levee road, where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. 1263 Comment
  SEINET10455820  Amsinckia menziesii Paul Gallian, David B. Dunn 1971-6-2 Gallian 480 Lassen 5 mi S of Milford near Honey Lake on US Hwy 395; along roadside in grass-Artemesia tridentata assoc.; Quercus-Jeffrey Pine on mountain range to W at approximately the same altitude. 1250 Comment
  JEPS61105  Amsinckia menziesii var. menziesii W. L. Jepson 1918-8-2 7777 Lassen Beckwith Pass 1463 Comment
  UC198379  Amsinckia tessellata var. tessellata J. G. Lemmon Lassen Sierra and Long Valleys Comment
  UC725370  Amsinckia tessellata var. tessellata A. A. Heller 1938-6-23 15204 Lassen just outside Johnstonville (on US Hwy #395) Comment
  CHSC64748  Ancistrocarphus filagineus Vernon H. Oswald 1995-5-31 6809 Lassen Modoc Plateau. Smoke Creek Ranch Rd. 1.3 mi E of Hwy. 395, between Litchfield and Ravendale. 1353 Comment
  CAS-BOT-BC45258  Ancistrocarphus filagineus H. D. Ripley; R. C. Barneby 1944-5-30 5862 Lassen North of Viewland 137 Comment
  CAS-BOT-BC64112  Anisocoma acaulis G. Schoolcraft 1997-5-7 2586 Lassen Port Sage Mtns. n. of Indian Spring 1584 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
  CHSC5194  Antennaria argentea A. Santos 1946-6-14 Lassen Spalding's, Eagle Lake. 1558 Comment
  UC773954  Antennaria argentea L. R. Short and Wm. Gansberg 1936-6-10 S- 414 Lassen Burgess Spr. Exp. Range 1856 Comment
  CAS-BOT-BC63952  Antennaria argentea H. D. Ripley; R. C. Barneby 1944-5-29 5958 Lassen Susanville Comment
  HSC68156  Antennaria dimorpha J. P. Smith, J. O. Sawyer 1971-5-23 4657 Lassen Along Hwy. 139, 23 miles south of junction with road to Thermo. Comment
  UC1137664  Antennaria dimorpha L. R. Short 1936-6-8 S- 386 Lassen Burgess Spr. Exp. Range Lassen National Forest, Thompson Meadow 1743 Comment
  UCD128922  Antennaria flagellaris G. Schoolcraft 1981-5-27 0456 Lassen Hayden Hill. 1737 Comment
  CHSC105248  Antennaria geyeri Lowell Ahart; John Dittes 2010-7-31 16974 Lassen About 100 yards northeast of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin. 1520 Comment
  CHSC60809  Antennaria geyeri Vernon H. Oswald; Lowell Ahart 1993-6-28 5614 .1 Lassen N of Hwy 44 on Rd. 33N06, on the SSE flank of Harvey Mtn., NNE of Burgess Meadow, NE of Poison Lake. 1798 Comment
  CHSC86973  Antennaria geyeri L. P. Janeway 2001-6-20 7206 Lassen High Cascade Range. 0.6 km east of Road 111 and 1.3 km south of Road 35N60; about 11 km west of Little Valley, 3.9 km east-northeast of Coble Mountain. 1402 Comment
  UC1609103  Antennaria geyeri Vernon H. Oswald and Lowell Ahart 1993-6-28 5584 Lassen Harvey Valley Rd (33N02) 1.2 mi n Hwy 44 (e side of valley, e of Poison Lake); Grays Valley 1731 Comment
  UC1609122  Antennaria geyeri Vernon H. Oswald and Lowell Ahart 1993-6-14 5528 Lassen 2.0 mi ene Spaulding Tract Rd. (Rd. 518, 33N89) (Sandy Beach, w shore of Eagle Lake, upper beach between road and lake); Eagle Lake Rd 1566 Comment
  CDA10077  Antennaria luzuloides L. Ahart, J. Dittes 2005-6-1 11862 Lassen On the east side of the poor dirt road, about 1/2 mile west of Scott Road, Long Valley, about 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.9 miles (air) northwest of Hallelujah Junction. Comment
  POM253190  Antennaria luzuloides A. A. Heller 1938-6-23 15189 Lassen About 3 miles south of Westwood on hiway 36. A tongue of Upper Sonoran extends into the Arid transition Life Zone here. Comment
  UC506930  Antennaria luzuloides George A. Fischer and Irwin H. Johnson 1933-7-14 F 241 Lassen below Patterson R. S.; Lassen National Forest 1737 Comment
  UC891618  Antennaria luzuloides A. A. Heller 1938-6-23 15189 Lassen about 3 mi s, on Highway #36 Westwood Comment
  UC1583976  Antennaria rosea G. Schoolcraft 1990-7-2 2103 Lassen w of Cold Spring Mtn. 1645 Comment
  CHSC60713  Antennaria rosea subsp. confinis Vernon H. Oswald; Lowell Ahart 1993-6-14 5526 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
  CHSC117548  Apera interrupta Lowell Ahart; John Dittes 2016-7-13 21143 Lassen 100 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 (air) miles east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. 1289 Comment
  SEINET7881828 Image available 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
  CAS-BOT-BC392013  Aquilegia Clare B. Hardham 1969-8-28 17453 I Lassen Slope west of Janesville Comment
  CAS-BOT-BC392211  Aquilegia formosa Marcus E. Jones 1897-6-28 s.n. Lassen Diamond Mt. Susanville, Perkin's Ranch 2133 Comment
  CHSC30594  Aquilegia formosa Marc Held 1972-7-7 41 Lassen Collected on the roadside above Gallatin Beach. Comment
  UC306926  Aquilegia formosa Marcus E. Jones 1897-6-28 Lassen Susanville, Perkin's Ranch Diamond Mt. 1828 Comment
  CHSC4814  Aquilegia formosa var. truncata R. Carter 1967-7-29 573 Lassen Found in Murrer's meadow, W side where canal runs. 1584 Comment
  HSC18051  Aquilegia formosa var. truncata Fred J. Kindel 1955-7-9 Lassen Susan River Comment
  SEINET10866232  Arabis Billy Joe Cox, Paul Gallian 1971-6-2 Cox 2601 Lassen Hallelujah jct intersection of u.s. 395 And state hwy 70; in open waste area adjacent to artemisia tridentata comm. 1433 Comment
  NY112494  Arabis holboellii var. pinetorum R. C. Rollins 1981-5-30 81164 Lassen Gold Run Road, 9 miles S of Susanville Comment
  SEINET228463  Arabis holboellii var. pinetorum Reed C. Rollins, Kathryn W. Rollins 1981-5-31 81176 Lassen Just north of Eagle Lake. Comment
  RSA516394  Arabis holboellii var. retrofracta Barbara Ertter, Gary Schoolcraft 1987-6-16 7174 Lassen Skeeadaddle Mtns on the NE side of Honey Lake. E side of road over saddle on W side of range. 1646 Comment
  NY114397  Arabis microphylla var. microphylla Anonymous 1987-6-16 1748 Lassen Skedaddle Mountains 1828.8 Comment
Read comments
Apr 20 2012
  RSA0129045  Arabis platysperma Marcus E. Jones 1897-6-28 s.n. Lassen Top of Diamond Mt. Susanville. Perkin's Ranch. 2226 Comment
  NY119616  Arabis sparsiflora var. subvillosa R. C. Rollins 1981-5-31 81181 Lassen 5.3 miles S of junction of California Hwy. 139 and County Road 201 Comment
  NY119618  Arabis sparsiflora var. subvillosa R. C. Rollins 1983-7-5 83228 Lassen One mile north of Eagle Lake Comment
  SEINET1916077  Arceuthobium abietinum R. L. Mathiasen 2010-1 1061 Lassen 0.3 km W of Fredonyer Pass on Rte. 36; On Abies Iowiana 1660 Comment
  CHSC29858  Arceuthobium campylopodum Robin L. Ondricek 1978-8-8 118 Lassen On road to Lower Dry Lake, .1 mi ne of intersection with road which leads to main road to ELFS. 1609 Comment
  CAS-BOT-BC45892  Arctostaphylos nevadensis A. H. Kramer 1929-1-1 s.n Lassen Prospect Peak Comment
  CAS-BOT-BC45896  Arctostaphylos nevadensis A. H. Kramer 1929-1-1 s.n Lassen Prospect Peak Comment
  CAS-BOT-BC45904  Arctostaphylos nevadensis M. S. Jussel 1931-9-6 s.n Lassen Sulphur Works, Mt. Lassen 2133 Comment
  CHSC21058  Arctostaphylos nevadensis M. S. Taylor 1975-7-16 838 Lassen On trail between Echo Lake and Summit Lake, Lassen National Park. Comment
  UC1137649  Arctostaphylos patula A. Simontacchi 1940-5-13 703 Lassen 4.1 mi w Harvey Mtn. Lookout; Lassen National Forest, Halls Flat Quadrangle Comment
  UCD53307  Arctostaphylos patula Beecher Crampton 1964-1-26 7080 Lassen Ca. 35 miles NW of Susanville. 2042 Comment
  CAS-BOT-BC42164  Arctostaphylos patula subsp. patula Louella Bass 1974-4-15 151 Lassen Elysian Valley 1325 Comment
  CHSC23558  Arctostaphylos patula subsp. patula W. O. Baum 1971-6-21 41 Lassen E slope of Gallatin Peak on fire trail. 1920 Comment
  RSA700049  Arenaria congesta L. P. Janeway 2001-6-20 7191 Lassen High Cascade Range. South side of the junction of the 22 road and Road 34N41; about 5.6 km south of Dixie Valley and 8.9 km north of Harvey Mountain. High Cascade Range., South side of the junction of the 22 road and Road 34N41; about 5.6 km south of Dixie Valley and 8.9 km north of Harvey Mountain. 1560 Comment
  UC506974  Arenaria congesta var. congesta George A. Fischer, Irwin H. Johnson 1933-7-12 f 223 Lassen Lassen Forest 1728 Comment
  RSA0002312  Arenaria congesta var. simulans A. A. Heller 1938-6-23 15198 Lassen On an open slope east of Fredonyer Pass. 1646 Comment
  UC726207  Arenaria congesta var. subcongesta A. A. Heller 1938-6-23 15198 Lassen e Fredonyer Pass 1645 Comment
  UC8098  Arenaria congesta var. subcongesta M. S. Baker and F. Nutting 1894-7-2 Lassen Dixey Mts. Comment
  JEPS124518 Image available Argemone munita Himayat H. Naqvi 1965-7-12 144 Lassen 2.6 miles from Milford, highway 139 Comment
  CHSC6196  Argemone munita subsp. rotundata M. West 1946-6-14 Lassen Antelope Grade. 1615 Comment
  CHSC65320  Argemone munita subsp. rotundata Vernon H. Oswald; Lowell Ahart 1995-8-14 7204 Lassen Modoc Plateau. Horse Lake Rd. (Lassen 536) near the S end of Horse Lake, 15.3 mi W of Hwy. 395, N. of Susanville. 1566 Comment
  CAS-BOT-BC401790  Argemone munita subsp. rotundata P. Monnet 1913-7-1 945 Lassen Doyle Comment
  CAS-BOT-BC401792  Argemone munita subsp. rotundata Elmer I. Applegate 1921-9-4 3545 Lassen Hills north of Susanville Comment
  JEPS124519 Image available Argemone platyceras var. hispida P. C. Billigs 1965-7-12 77 Lassen 1.8 mi south of MIlford on Hwy 395 Comment
  RSA0011559  Arnica R. F. Thorne, Larry E. DeBuhr 1975-8-22 46993 Lassen Along Highway 395 ca. 5 miles north of Madeline and ca. 5.5 miles south of Modoc county line. 1616 Comment
  JEPS35887  Arnica chamissonis Brown and Wieslander 1922-7-30 26 Lassen Martin Springs , Eagle Lake Comment
  UC29631  Arnica chamissonis M. S. Baker and Frank Nutting 1894-1 Lassen Comment
  CAS-BOT-BC82311  Arnica cordifolia A. A. Heller 1938-6-4 15146 Lassen 1 mile east of Fredonyer Pass on Highway #36 1706 Comment
  JEPS22841  Arnica cordifolia A. A. Heller 1938-6-4 15146 Lassen 1 mi e Fredonyer Pass 1706 Comment
  UCD159572  Arnica cordifolia D. S. Park 2011-6-27 309 Lassen East of Westwood. Growing near Willard Creek. 1700 Comment
  OBI76962  Arnica dealbata Anthony Baniaga 2011-8-4 489 Lassen Lassen Natl Forest. About 1/2 mi WNW of Griffith Hill along 30N21. Swain Mtn quad. T30N R8E sec 5 SW of SW 1918 Comment
  JEPS35883  Arnica mollis Frances D. Payne 1929-7-12 99 Lassen Upper Silver Creek, se extremity of Warner Mts Warner Mountains, Upper Silver Creek 2499 Comment
  CHSC77183  Arnica parryi subsp. sonnei G. Schoolcraft 1994-8-2 2400 Lassen About 2 miles west of Boot Lake. 2286 Comment
  UCR18724  Arnica sororia Frank C. Vasek 1975-7-11 750711- 09 Lassen Modoc Plateau, State Hwy 139, [Said Valley] 2 mi north of Grasshopper Valley at the junction with Termo Rd. 1650 Comment
  RSA233757  Artemisia biennis R. F. Thorne, C. W. Tilforth 1969-9-6 39254 Lassen Sandy Flats along Long Valley Creek, c. 14 miles SE of Milford 1311 Comment
  UC217077  Artemisia cana subsp. bolanderi H. M. Hall 1921-9-10 11673 Lassen Madeline Plains Comment
  CAS-BOT-BC84832  Artemisia cana subsp. cana G. Thomas Robbins 1945-10-18 2157 Lassen Harvey Valley, Lassen National Forest 1676 Comment
  UCR67466  Artemisia douglasiana George K. Helmkamp 1990-9-23 G- 9 Lassen north of Ravendale 1677 Comment
  CHSC77187  Artemisia dracunculus G. Schoolcraft 1992-8-11 2248 Lassen Near inters. of Wingfiled and Bass Hill Roads. 1322 Comment
  JEPS103170  Artemisia dracunculus Beth Corbin 2002-7-10 1089 Lassen Madeline Plains, ESE side. 5 air mi N of top of Observation Pk. 1627 Comment
  SEINET6775481 Image available Artemisia dracunculus G. Schoolcraft 1992-8-11 2248 Lassen Near intersection of Wingfield and Bass Hill Roads 1323 Comment
  JEPS37008  Artemisia ludoviciana subsp. incompta W. L. Jepson 1918-8-4 7809 Lassen Horse Lake 1554 Comment
  CHSC111259  Artemisia ludoviciana subsp. ludoviciana L. P. Janeway; B. Castro 2012-7-2 10934 Lassen Modoc Plateau. Along Skedaddle Ranch Road 6.4 road km north of Skedaddle Creek at an unnamed tributary of Bull Creek. 1533 Comment
  UCD129340  Artemisia nova W. A. Williams 1951-8-6 s.n. Lassen Black's Mountain Range Experiement Station, (old Hell's Flat Ranger Station site). 25 miles south of Pittville. 1584 Comment
  RSA0092309  Artemisia tridentata subsp. tridentata Jim M. Andre, Tasha La Doux, Senna Andre, Elias Andre 2013-7-12 31432 Lassen Along north side of Hwy 44 at south end of Grays Valley, along NF Rd# 33N02, north of Bogard Buttes, about 30 mi. west of Susanville. 1732 Comment
  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
  SEINET230066  Artemisia tridentata subsp. vaseyana Leila M. Shultz, John S. Shultz 1985-6-23 8604 Lassen 41 miles north of Susanville on Highway 395 1433 Comment
  UCD137866  Asarum lemmonii Grady L. Webster 1989-5-13 7701 Lassen Butterfly Valley area. ca. 1 mile northwest of crossing of Big Blackhawk Creek. 1066 Comment
  POM261533  Aster eatonii Alice Eastwood 1912-8-22 1918 Lassen Battle Creek Meadows, Lassen Butte Region Comment
  POM45145  Astragalus accidens var. hendersonii Marcus E. Jones 1897-6-19 s.n. Lassen Chat. 1524 Comment
  CAS-BOT-BC177435  Astragalus andersonii Margaret Williams 1974-8-4 74 -L-83 Lassen Near Hallelujah Junction, west of Hwy 395 and south of Hwy 70 1493 Comment
  CHSC106586  Astragalus andersonii C. Dow; D. Garrison 2008-5-3 Lassen Fort Sage Mtns. OHV Trailhead and Trail to Indian Springs. 1439 Comment
  CHSC116920  Astragalus andersonii J. P. Bergmann 2011-4-30 Lassen Fort Sage OHV Recreation Area. 1450 Comment
  POM45143  Astragalus andersonii Marcus E. Jones 1897-6-19 s.n. Lassen Chat. 1524 Comment
  UC84393  Astragalus andersonii T. Brandegee 1892-6-30 Lassen Janesville Comment
Read comments
Oct 22 2007
  NY791369  Astragalus andersonii M. J. Williams 1974-8-4 74-L- 83 Lassen About 2 miles west of Highway 395, near Highway 70 1493.5 Comment
  SEINET10450638  Astragalus andersonii David B. Dunn, Billy Joe Cox 1971-6-2 Dunn 17802 Lassen 6 mi n of hallelujah jct. On us hwy 395, in artemisia tridentata, pinyon pine, Jeffery pine alon ghigh ridge and in sandy wash. 1402 Comment
  NY5381  Astragalus anxius R. J. Meinke 1991-7-16 6108 Lassen Ash Valley, ca 25 km W of Madeline, along Ash Valley Road, on boundary T38N, R11E, S32 and T37N, R11E, S5. 1550 Comment
  UC1594460  Astragalus anxius Meinke and Lantz 1991-7-16 6108 Lassen ca 25 km w Madeline (along Ash Valley Rd.); Ash Valley 1550 Comment
  SEINET2059942 Image available Astragalus argophyllus var. argophyllus Arnold Tiehm, Margaret Williams, Gary Schoolcraft 1986-5-12 10347 Lassen 1 mi W of the State line on the dirt road from Hwy 395 to Smoke Creek, S side of Rush Creek 1341 Comment
  CAS-BOT-BC178763  Astragalus canadensis var. brevidens John Thomas Howell 1977-8-11 52718 Lassen EAst of Beckwourth Pass, near Halleluja Junction - Sierra Nevada 1554 Comment
  HSC69613  Astragalus curvicarpus Gary Schoolcraft 1979-6-19 77 Lassen Just N of West Painter Flat Rd. intersection. 1720 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
  JEPS54557  Astragalus curvicarpus var. curvicarpus T. Brandegee 1892-6-23 Lassen Honey Lake Comment
  NY803537  Astragalus curvicarpus var. curvicarpus LeDoux 1973-5-24 862 Lassen Collected on road bank 24 miles north of California state line of Highway 395 Comment
  CAS-BOT-BC182958  Astragalus filipes H. D. Ripley; R. C. Barneby 1943-6-15 5759 Lassen East of Viewland 1310 Comment
  NY813074  Astragalus filipes R. W. Spellenberg 1996-6-13 12334 Lassen 26 km south of Doyle on U.S. Highway 395 1430 Comment
  SBBG30554  Astragalus filipes D. Myrick 1968-6-19 1959 Lassen Hwy 395, 23 mi S of Alturas 1524 Comment
  CHSC116921  Astragalus geyeri J. P. Bergmann 2011-4-30 Lassen Fort Sage OHV Recreation Area. 1450 Comment
  NY674268  Astragalus gibbsii G. Schoolcraft 1993-6-8 2285 Lassen US Highway 395 at Airport Road 1274 Comment
  POM26155  Astragalus gibbsii Marcus E. Jones 1897-6-26 s.n. Lassen Susanville, Perkins Ranch. 1463 Comment
  RSA110066  Astragalus gibbsii H. D. Ripley, R. C. Barneby, F. C. Ripley Jr. 1942-5-22 4541 Lassen Loyalton 1524 Comment
  RSA110068  Astragalus gibbsii H. D. Ripley, R. C. Barneby, F. C. Ripley Jr. 1944-5-29 5951 Lassen Constantia 1372 Comment
  RSA647557  Astragalus gibbsii Marion P. Harthill 1971-6-20 220 Lassen Ravendale Comment
  CAS-BOT-BC27652  Astragalus inversus Townsend Stith Brandegee 1892-7-1 s.n. Lassen Susanville Comment
  UC1142997  Astragalus inversus August L. Hormay 1934-7-2 Lassen Black's Mtn Headquarters , Black's Mtn Headquarters (Lassen National Forest) 1706 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
  SEINET5324147  Astragalus iodanthus var. iodanthus A. Tiehm 1980-1 5755 Lassen North end of Honey Lake Valley, 2 air miles NW of Wendel. 1231 Comment
  POM45790  Astragalus lemmonii Marcus E. Jones 1897-6-19 s.n. Lassen Chat. 1616 Comment
  CAS-BOT-BC187159  Astragalus lentiginosus var. floribundus Arnold Tiehm 1980-5-29 5751 Lassen North end of Honey Lake Valley, 1 mile north of Wendel 1231 Comment
  JEPS118160  Astragalus lentiginosus var. floribundus Dean W. Taylor 2009-5-20 20605 Lassen Widow Valley; Big Valley Mountains, logging road ca. 1 air mi NW of Brown Cabin (USGS map, site) 1478 Comment
  OBI49332  Astragalus lentiginosus var. floribundus Lewis S. Rose 1940-6-16 40594 A Lassen Susanville 1280 Comment
  CHSC7667  Astragalus lentiginosus var. platyphyllidius Beverley J. Wise 1969-5-4 56 Lassen 1.7 mi. west on Shaeffer Mtn Lookout Rd off Hwy 395 (approx. 1 mi. south of Las Co. Rd. 338). 1676 Comment
  RSA109610  Astragalus lentiginosus var. platyphyllidius H. D. Ripley, R. C. Barneby 1943-6-14 5744 Lassen Hidden Valley E of Susanville 1311 Comment
  CAS-BOT-BC187560  Astragalus malacus B. Bartholomew; M. Gilbert; L. Skog 1993-5-13 6551 Lassen Just S of Ravendale 1580 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
  NY676224  Astragalus malacus B. M. Bartholomew 1993-5-13 6551 Lassen Just south of Ravendale 1580 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
  RSA0006819  Astragalus malacus H. D. Ripley, R. C. Barneby 1944-5-30 5974 Lassen South of Ravendale. 1677 Comment
  UC1128893  Astragalus obscurus A. Simontacchi 1940-5-17 748 Lassen 1.1 mi ssw Dixie Spring (Lassen National Forest); Halls Flat Quad., , ssw of Dixie Sprin Comment
  CAS-BOT-BC192845  Astragalus pulsiferae Margaret Williams; Steven Williams 1974-7-26 74 -L-16 Lassen Near Hallelujah Junction, west of Hwy 395 and south of Hwy 70 1493 Comment
  CAS-BOT-BC192846  Astragalus pulsiferae Noel H. Holmgren; Patricia K. Holmgren 1980-7-4 9500 Lassen Observation Peak, south side of mountain, 18 km (11 mi) airline distance east of Ravendale 1890 Comment
  UC1128861  Astragalus pulsiferae E. Sawyer 1935-6-27 237 Lassen Long Valley Sierraville Quad., Long Valley Comment
  UC1567373  Astragalus pulsiferae G. Schoolcraft 1989-6-7 1906 Lassen e slope Shaffer Mtn. 1524 Comment
  CHSC83400  Astragalus pulsiferae var. coronensis R. Ondricek-Fallscheer 1999-7-9 201 Lassen About 11 air mi SE of Adin; E edge of Hunsinger Flat Rd. (USFS Rd. 38N04), 1.0 road mi south of jct. with USFS Rd. 39N08. 1600 Comment
  CHSC98309  Astragalus pulsiferae var. coronensis R. Ondricek-Fallscheer 2003-6-7 210 Lassen About 27 air mi NE of Susanville, 9 air mi SSE of Ravendale, and 0.5 air mi NW of Rye Patch Springs; 0.5 mi E of Hwy 395 and 150 ft. N of road to Ramhorn Springs Campground. 1615 Comment
  NY694121  Astragalus pulsiferae var. coronensis S. L. Welsh 2001-6-14 28150 Lassen East of Highway 395, road to Rams Horn Spring campground 1540 Comment
  SEINET8522264  Astragalus pulsiferae var. coronensis Unknown Lassen [isotype] Comment
  UC13450  Astragalus pulsiferae var. suksdorfii M. S. Baker and Frank Nutting 1894-7-12 Lassen Pine Creek Comment
  CAS-BOT-BC194099  Astragalus purshii var. purshii John Thomas Howell 1934-6-10 11876 Lassen Janesville Comment
  RSA121821  Astragalus purshii var. purshii L. R. Short, J. Warren 1936-6-11 S- 402 Lassen Burgess Spring, Exp Range. 1790 Comment
  SEINET10490025  Astragalus purshii var. tinctus David B. Dunn, Billy Joe Cox 1971-6-2 Dunn 17789 Lassen 6 mi n of hallelujah jct on us hwy 395 in artemisia tridentata pinyon pine Jeffery pine along high ridge and sandy wash. 1402 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
  CAS-BOT-BC200873  Astragalus whitneyi var. lenophyllus Marcus E. Jones 1897-6-28 s.n. Lassen Top of Diamond Mt., Susanville, Perkin's Ranch 2225 Comment
  SEINET3025898  Astragalus whitneyi var. sonneanus Marcus E. Jones 1897-6-28 Lassen Top of Diamond Peak, Susanville. Perkin's Ranch. 2230 Comment
  CHSC72311  Astragalus whitneyi var. whitneyi L. P. Janeway; Glenn Clifton 1998-7-8 5722 Lassen Ridgetop saddle about 2.4 mi northwest of Red Rock; along Road 213, 0.1 mi east of the junction of Roads 28N08, 29N10, 213, and 28N55. 1988 Comment
  CHSC107993  Athysanus pusillus Lowell Ahart; John Dittes 2011-6-20 17491 Lassen About 40 yards east of the stream, about 70 yards north of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin. 1520 Comment
  CAS-BOT-BC106555  Balsamorhiza John Thomas Howell 1976-7-20 52011 Lassen About 5 miles west of Fredonyer Pass near confluence of Susan River and Willard Creek - Sierra Nevada 1432 Comment
  CHSC71070  Balsamorhiza hirsuta Vernon H. Oswald; Lowell Ahart 1998-5-22 9089 Lassen Hwy. 36 between Fredonyer Summit and Susanville, 0.4 mi west of the Susan River and Bizz Johnston Trail. 1417 Comment
  RSA584835  Balsamorhiza hirsuta Bruce Bartholomew, M. Gilbert, L. Skog 1993-5-13 6557 Lassen Just S. of Ravendale. 1580 Comment
  CAS-BOT-BC106489  Balsamorhiza hookeri David D. Keck; J. Clausen 1935-6-24 3747 Lassen 2 mi. S. of Ravendale, in light sandy clay soil with some rock. 1463 Comment
  CAS-BOT-BC106494  Balsamorhiza hookeri Clarence Quick 1963-7-12 63 -38 Lassen Blacks Mountain Experimental Forest east of Halls Flat 1859 Comment
  JEPS109626  Balsamorhiza hookeri Dean W. Taylor 2002-6-21 18178 Lassen Elysian Valley (ca. 3 air miles West of Janesville), southerly middle border of the valley 1310 Comment
  UC1368790  Balsamorhiza hookeri John L. Strother 1970-5-23 957 Lassen 6 mi n Honey Lake 1280 Comment
  HSC100313  Balsamorhiza hookeri var. hirsuta Chris Boever, Ed Lutz and Wendi Lutz 2010-7-7 370102 Lassen On Co. Rd. 1, S from Cedarville, take gravel rd. 15 mi. to Tuledad Canyon Road. 1823 Comment
Read comments
May 1 2020
  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
  CHSC67422  Balsamorhiza macrolepis var. platylepis James D. Jokerst 1991-5-29 3300 Lassen Modoc Plateau. Survey for reroute of Hwy. 139 at the N end of Eagle Lake, top of plateau E of N basin, W of N-S oriented dirt road. 1737 Comment
  UC1119024  Balsamorhiza sagittata C. W. Hanks 1934-8-18 56 Lassen n part of Upper Long Valley (Sierraville); Sierraville 1463 Comment
  CHSC114353  Balsamorhiza sagittata B. Villegas 2011-5-20 Lassen Susanville. Comment
  NY119712  Barbarea orthoceras var. dolichocarpa J. T. Howell 1973-6-28 49464 Lassen Elysian Valley, W of Janesville 1325.9 Comment
  RSA783700  Bassia hyssopifolia R. R. Halse 2010-8-25 8088 Lassen Along State Hwy 139 ca. 26.2 mi N of Susanville on NE shore of Eagle Lake. 1559 Comment
  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
  CHSC117278  Beckmannia syzigachne Lowell Ahart; John Dittes 2016-7-15 21216 Lassen About 300 yards west of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1261 Comment
  JEPS121246  Beckmannia syzigachne Lowell Ahart, John Dittes 2013-7-22 18871 Lassen 40 yards S of the man-made pond, about 110 yards N of the four tall poles, Ash Creek Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley. Comment
  UC1790750  Berteroa incana Arnold Tiehm 2005-7-14 15023 Lassen Long Valley, Anderson (Saralegui) Ranch, 2.2 road mi W of Hwy 395 on Hwy 70, then 5.5 road mi N on Scott Road 1493 Comment
  UC30552  Bidens cernua J. Burtt Davy Jun 17 1897-Jun 24 1897 3309 Lassen Tule Confederacy Comment
  CHSC96712  Bidens cernua var. cernua Gordon Leppig 1998-8-17 1047 Lassen Modoc National Forest, Blue Lake Ranch. Peatland in large meadow complex. 1970 Comment
  CAS-BOT-BC413001  Bistorta bistortoides A. A. Heller 1938-6-4 15141 Lassen 2 miles east of Westwood 1402 Comment
  SEINET4176271  Bistorta bistortoides C. G. Gulling 1905-1 1548 Lassen Big Meadows Comment
  CAS-BOT-BC127956  Blepharipappus scaber David D. Keck; J. Clausen 1935-6-25 3754 Lassen Susanville, on hills just west of town 1310 Comment
  CAS-BOT-BC127972  Blepharipappus scaber Ella Dales Cantelow 1941-5-22 3551 Lassen U. S. Hy 395 n. of Litchfield Comment
  CAS-BOT-BC128033  Blepharipappus scaber Clare B. Hardham 1961-6-16 7451 Lassen Gold Run Creek south of Susanville Comment
  CHSC99132  Blepharipappus scaber Lowell Ahart; John Dittes 2008-6-19 14876 Lassen Open hillside, about 100 yards east of Willow Creek, about 120 yards northeast of Highway 139, near Forest Road 36N02, about 19.6 miles east-southeast of Bieber. 1578 Comment
  SBBG22255  Blepharipappus scaber C. B. Hardham 1961-6-16 7451 Lassen Gold Run Crk, S of Susanville Comment
  SBBG30617  Blepharipappus scaber D. Myrick 1968-6-19 1958 Lassen Hwy 395, 23 mi S of Alturas 1524 Comment
  UC1119057  Blepharipappus scaber A. Simontacchi 1940-7-8 5575 Lassen 5.1 mi s of Jelly Camp (Halls Flat); Halls Flat 1699 Comment
  UC1136967  Blepharipappus scaber L. R. Short 1936-6-10 S- 415 Lassen Burgess Spr. Exp. Range 1798 Comment
  UC1393121  Blepharipappus scaber John L. Strother 1970-5-23 953 Lassen 6 mi n of Honey Lake 1280 Comment
  UC604683  Blepharipappus scaber Farris Farris 1935-5-20 Lassen Susanville 1341 Comment
  CAS-BOT-BC127955  Blepharipappus scaber Dr. Jean Linsdale 1929-6-9 s.n. Lassen Pete's Valley 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
  JEPS53205  Boechera Leland S. Smith 1918-5-11 924 Lassen Hayden Hill Modoc Forest 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
  JEPS53091  Boechera pauciflora Jos. Grinnell 1928-6-16 Lassen Eagle Lake 1584 Comment
  UC1504460  Boechera pauciflora Reed C. Rollins and Kathryn W. Rollins 1981-5-31 81178 Lassen just n Eagle Lake Comment
  CHSC68852  Boechera pinetorum Vernon Oswald; Lowell Ahart 1997-6-24 8622 Lassen South of Susanville on the north side of Diamond Mtn. on Forest Rd. 21N52, 1.0 mi southwest of its junction with 29N43. On a roadcut. 2164 Comment
  CHSC101060  Boechera puberula John Dittes 2008-5-22 1532 Lassen Modoc Plateau; ca. 15.3 air miles southeast of Adin, ca. 3.4 air miles east of Hayden Hill, ca 350 feet north by northeast of intersection of Hwy 139 and FS Road 36N02; open, volcanic outcrop on northeast side of Willow Creek. 485 Comment
  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
  UCD114424  Boechera puberula Geo C. Wood 1940-4-18 s.n. Lassen Coffin Ranch near Susanville. Comment
  SEINET5325194  Boechera rectissima R. C. Rollins, Kathryn W. Rollins 1981-5-31 81172 Lassen 2.2. mi N of junction of County Hwy. A-1 and California Hwy. 36 Comment
  CAS-BOT-BC25510  Boechera retrofracta G. Schoolcraft 1988-6-20 1815 Lassen Ash Valley RNA, 16 miles west of Madeline. 1584 Comment
  UC1553390  Boechera retrofracta G. Schoolcraft 1988-6-20 1815 Lassen Ash Valley RNA, 16 mi west of Madeline, CA. 1584 Comment
  CAS-BOT-BC25507  Boechera retrofracta Doris Kildale Gillespie 1930-5-14 9383 Lassen 5 miles west of Susanville. Comment
  CAS-BOT-BC25705  Boechera sparsiflora John Thomas Howell; Gordon H. True 1973-7-31 50064 Lassen Sierra Nevada. Diamond Range. Road from Janesville to Thompson Peak. 1783 Comment
  CHSC12965  Boechera sparsiflora K. R. Stern; D. B. Joley, J. G. Geschke 1974-6-22 5815 Lassen Ca. 16.5 mi w of Madeline, on Madeline-Adin Road. 1548 Comment
  CHSC36477  Boechera sparsiflora Margaret E. Halloran 1982-6-6 12 Lassen Pine Creek just below fish trap where Pine Crek empties into Eagle Lake. Comment
  SEINET3165716  Boechera sparsiflora R. W. Spellenberg 2006-6-19 13745 Lassen along a USFS access road 1 km E of Calif. Hwy 139, the junction of road and highway 31 km SE of Modoc Co. line (just S of Adin) 1665 Comment
  RSA0011460  Boisduvalia macrantha Robert F. Thorne, Larry E. DeBuhr 1975-8-22 46980 Lassen Along Highway 395 ca. 6 miles north of Madeline and 4.5 miles south of Modoc county line. 1616 Comment
  CHSC76305  Bolboschoenus maritimus subsp. paludosus Lowell Ahart; Vernon H. Oswald 1999-9-13 8221 Lassen On the edge of a flooded field, just south of the parking area, about 1 mile south of the sign in station, Honey Lake Wildlife Area, 5 1/2 miles (air) southeast of Standish. 1207 Comment
  HSC103654  Brickellia californica Thomas W. Nelson, Jane Nelson 1985-8-10 8021 Lassen Along west side of Silver Lake. 1829 Comment
  RSA210962  Brickellia grandiflora James Henrickson 1969-9-4 4268 Lassen 4 miles south of Westwood along Highway 147. Along dirt road into forest along small river. 1390 Comment
  SEINET8193957  Brodiaea congesta J. A. Young 1978-4-13 s.n. Lassen Meyers Ranch. Comment
  UC1249280  Brodiaea coronaria subsp. coronaria Arthur Cronquist and Arthur H. Holmgren 1959-6-18 8485 Lassen 5 mi s Adin 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
  RSA0065493  Bromus briziformis Marion P. Harthill 1971-6-21 203 Lassen Susanville. Comment
  UCD59149  Bromus carinatus var. marginatus H. P. Hagge 1929-9-16 s.n. Lassen Logan Mtn. 1828 Comment
  UCR119122  Bromus hordeaceus Beecher Crampton 1954-7-5 2067 Lassen Modoc Plateau, 5 miles west of Susanville. 1448 Comment
  UCD58839  Bromus inermis M. C. Collins 1926-6-14 s.n. Lassen Susanville. 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
  RSA126867  Bromus marginatus G. A. Fischer, I. H. Johnson 1933-7-12 F 231 Lassen Patterson Flat. Lassen Forest. Comment
  CAS-BOT-BC162178  Bromus orcuttianus John Thomas Howell 1934-7-10 12554 Lassen Black's Mountain. Comment
  UCD59065  Bromus orcuttianus L. Whitney 1935-6-25 s.n. Lassen Ashurst Mt. Comment
  UC1024701  Bromus racemosus L. Whitney 1934-7-18 2143 Lassen Lassen National Forest 1371 Comment
  UC1131324  Bromus suksdorfii A. Simontacchi 1940-6-24 891 Lassen 6.4 mi sw of Jacks Lake (Lassen National Forest); Lassen National Forest 1950 Comment
  JEPS107312  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
  RSA152589  Bromus tectorum I. L. Wiggins, Dorothy Wiggins 1961-6-11 16341 Lassen 13.5 mi. E. of Susanville Comment
  UCD59851  Bromus tectorum L. Whitney 1933-8-8 s.n. Lassen Lassen National Forest. 1920 Comment
  SEINET10515052  Bromus tectorum Paul Gallian, David B. Dunn 1971-6-2 Gallian 522 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
  UCD59773  Bromus tectorum var. glabratus L. Whitney 1933-8-1 s.n. Lassen Black's Lake. 1706 Comment
  UCD57776  Calamagrostis stricta subsp. inexpansa A. L. Hormay 1941-6-26 29 Lassen Lassen National Forest. Westwood Junction. 1737 Comment
  CHSC99528  Calandrinia ciliata Lowell Ahart; John Dittes 2008-6-22 15030 Lassen On the banks of a small natural drainage, about 120 yards west of the road levee, open meadow area, in Big Valley, about 2.1 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 5.0 miles (air) northeast of Bieber. 1262 Comment
  JEPS124786 Image available Callitriche palustris B. Corwin 1964-7-1 124 Lassen Under bridges between Bieber and New Bieber on rte. 299. Comment
  RSA233787  Callitriche verna R. F. Thorne, C. W. Tilforth 1969-9-5 39133 Lassen Said Valley Reservoir: Near junction of Grasshopper Road and Highway 139. 1433 Comment
  CHSC6217  Calocedrus decurrens P. Balch 1955-7-18 Lassen Willow Creek, Eagle Lake. 1463 Comment
  SEINET10531060  Calocedrus decurrens Katherine L. Morris 1973-5-25 Morris 226 Lassen Collected in an area of sugar pine, Libocedrus, and yellow pine. 2.5 mi N of Jct 36 & Hwy 44. Comment
  SBBG15290  Calochortus leichtlinii H. and M. Dearing 1938-7-1 2237 Lassen top of pass W of Susanville 1762 Comment
  POM109563  Calochortus leichtlinii Marcus E. Jones 1897-6-28 s.n. Lassen Diamond Mountain; Susanville; Perkins Ranch. 1829 Comment
  SEINET4169872  Calochortus leichtlinii A. A. Heller 1938-6-26 Lassen E. of Fredonyer Pass on State Hwy 36. 1219 Comment
  CDA39286  Calochortus macrocarpus L. E. Wheeler 1967-7-25 s.n. Lassen H. Boswell property, Madelaine. 0 Comment
  SEINET3260040 Image available Calochortus macrocarpus Marcus E. Jones 1897-7-1 Lassen Susanville at Perkin's Ranch. 1520 Comment
  CHSC30571  Calyptridium umbellatum Sori H Shad 1970-6-25 32 Lassen Found E. 2 mile past Murrer's Meadow on N. side of road in rocky soil. 1524 Comment
  CHSC67062  Calyptridium umbellatum Willis Ball 1969-6-20 16 Lassen Found beside road on Dean's Ridge. 1950 Comment
  SEINET196249  Calyptridium umbellatum F. Farris 1936-6-15 Lassen Eagle Lake Rd 1676 Comment
  UC1523751  Calyptridium umbellatum G. Schoolcraft 1981-5-5 374 Lassen Ash Valley 1548 Comment
  UC420619  Calyptridium umbellatum Franklin P. Nutting Lassen Pine Creek Comment
  UC699726  Calyptridium umbellatum Farris Farris 1936-6-15 Lassen Eagle Lake road 1676 Comment
  SDSU5718  Calystegia occidentalis subsp. occidentalis D. F. Howe 1964-8-1 3915 Lassen Modock National Forest. 1829 Comment
  POM253049  Camassia quamash subsp. breviflora A. A. Heller 1938-6-4 15140 Lassen 2 miles south of Westwood 1524 Comment
  RSA32023  Camassia quamash subsp. breviflora A. A. Heller 1938-6-4 15140 Lassen 2 miles south of Westwood 1494 Comment
  JEPS61547  Camassia quamash subsp. quamash Leland S. Smith 1927-6-10 14 Lassen Lassen National Forest, Norvell Flat Norvell Flat; Lassen National Forest, Norvell Flat 1747 Comment
  UC2027336  Camelina microcarpa Anthony Baniaga 2011-6-10 321 Lassen Along Highway 395 ca. 6.6 m S of Karlo Road. quadrangle. Comment
  SBBG70392  Camelina sativa subsp. sativa H. and M. Dearing 1939-6-6 3564 Lassen Bieber Comment
  POM38357  Camissonia andina Marcus E. Jones 1897-6-19 s.n. Lassen Chat. 1616 Comment
  RSA38438  Camissonia boothii subsp. alyssoides P. A. Munz 1947-5-19 11869 Lassen 19 miles south of Ravendale, on Hwy 395. 1341 Comment
  NY851245  Camissonia claviformis var. cruciformis G. Schoolcraft 1989-5-16 1875 Lassen West of Highway 395 ca. 2 miles south of Karlo turnoff 1356 Comment
  CHSC27119  Camissonia contorta Robert A. Schlising 1978-6-8 3286 Lassen SE of Eagle Lake, in streambed in Murrers Upper Meadow. 1536 Comment
  JEPS89992  Camissonia contorta Dean Wm. Taylor with Robert A. Price 1988-6-4 9768 Lassen ca. 6 mi. e. MacArthur (along Hwy. 299 at crossing of Frazer Creek); Pit R. Watershed 1036 Comment
  UC69560  Camissonia contorta J. Burtt Davy Jun 17 1897-Jun 24 1897 Lassen Chat Honey Lake Valley, Long Valley Comment
  CAS-BOT-BC160832  Camissonia minor Arnold Tiehm 1980-5-29 5752 Lassen North end of Honey Lake Valley, 2 air miles NW of Wendel 1231 Comment
  HSC22874  Camissonia tanacetifolia John Pratt 1970-6-13 6 Lassen 1677 Comment
  NY852079  Camissonia tanacetifolia P. H. Raven 1963-5-29 18426 Lassen Along U. S. Highway 395 0.9 mile north of Ravendale Comment
  RSA125385  Camissonia tanacetifolia Arthur R. Kruckeberg 1954-6-22 3322 Lassen 6 miles south of Likely along Highway 395 Comment
  POM38369  Camissonia tanacetifolia subsp. quadriperforata F. H. Hillman 1897-7-12 s.n. Lassen Chat. Comment
  RSA12158  Camissonia tanacetifolia subsp. quadriperforata Wayne E. Sawyer 1935-6-27 219 Lassen Long Valley. 1311 Comment
  CAS-BOT-BC160876  Camissonia tanacetifolia subsp. tanacetifolia R. K. Gierisch; D. H. Esplin 1969-7-18 3550 Lassen Near Modoc National Forest. Madeline Plains Comment
  UC1924258  Capsella bursa-pastoris Debra Valov 2004-5-31 2004229 Lassen Bieber; off County A2 c. 8 km east of Hwy 299 1274 Comment
  UC10331  Cardamine breweri M. S. Baker and Frank Nutting 1894-7-28 Lassen Bridge Creek Comment
  CHSC61025  Cardamine breweri var. breweri Vernon H. Oswald; Lowell Ahart 1993-8-3 5743 Lassen Cooper Swamp located E of Silver Lake just E of the Caribou Wilderness, ca. 13 mi (air) N of Lake Almanor. At the SW edge of the swamp. 1932 Comment
  SEINET5341069  Cardamine nuttallii var. nuttallii R. C. Rollins, K. W. Rollings 1981-5-30 81166 Lassen Gold Rund Road toward Sky Line Drive, 10 miles souoth of Susanville. Comment
  JEPS95978  Cardaria chalepensis Vernon H. Oswald and L. Ahart 1999-6-9 9749 Lassen Northeast of Susanville on County Rd. 216 at Biscar Wildlife Management Area: T31N R15E SE1/4 Sect. 18, 4440 ft elevation, sagebrush scrub 1353 Comment
  JEPS94075  Cardaria pubescens Vernon H. Oswald and Lowell Ahart 1998-9-8 9580 Lassen Ash Creek and Big Swamp 2.2 mi. n. Bieber (on County Rd. 91 (Bieber-Lookout Rd.)) 1258 Comment
  UCD163081  Carex Jack Major 1966-6-24 Lassen Modoc National Forest. Long Valley. 3 airline miles southwest of Patterson Guard Station. (Exact location unknown. Coordinates estimated by label maker.) 1981 Comment
  SEINET7549686 Image available Carex angustata L. P. Janeway 2003-7-24 7912 Lassen High Cascade Range. At lower end of a meadow and marsh along Bridge Creek 1.8 km north of Hwy 44, just northwest of the Cinder Pit. 1716 Comment
  SEINET7549702 Image available Carex angustata George W. Gillett 1957-7-22 883 Lassen Lassen Volcanic National Park. Snag Lake. Campsite near south end of lake. 1850 Comment
  CHSC77240  Carex aurea G. Schoolcraft 1996-9-5 2553 Lassen N. side of Biz Johnson Trail. 1402 Comment
  UC1143011  Carex aurea August L. Hormay 1934-5-14 Lassen Gray's Flat Well Lassen National Forest, Gray's Flat Well 1706 Comment
  CHSC114422  Carex davyi Don Lepley 2012-7-26 Lassen On the south flank of Whaleback Mt., about 3.5 air miles north-northwest of Christie Campground at Eagle Lake and about 500 feet from Road 32N02. UTM coordinates: 10T 68j0730 E x 4498190 N 1767 Comment
  SEINET11309924 Image available 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
  CAS-BOT-BC34933  Carex densa T. C. Fuller 1966-7-20 14963 Lassen South side of road to Pittville, 5.4 miles west of Little Valley Post Office. NW Lassen County. Comment
  CHSC68771  Carex douglasii Vernon H. Oswald; Lowell Ahart 1997-5-27 8519 Lassen Williams Reservoir on Forest Route 38N04 (between Hwy. 139 near Willow Creek Guard Station and Coyote Flat), 2.6 mi northeast of Hwy. 139. 1682 Comment
  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
  UC803  Carex douglasii J. Burtt Davy Jun 17 1897-Jun 24 1897 3289 Lassen Honey Lake Valley Comment
  SEINET7557452 Image available Carex douglasii John Thomas Howell 1934-7-6 12450 Lassen Harvey Valley. Comment
  SEINET7485203 Image available Carex filifolia Barbara L. Wilson, Danna Lytjen and Nick Otting 2005-1 11494 Lassen Blue Door Flat, seven or eight miles east of Highway 295 on county road 510 1774 Comment
  HSC48223  Carex filifolia var. erostrata D. H. Norris, Thomas W. Nelson, S. Dowty 1971-6-22 19171 Lassen Harvey Valley near Cone Springs Comment
  CAS-BOT-BC21303  Carex fracta John Thomas Howell; Gordon H. True 1973-7-31 50047 Lassen Sierra Nevada. On road from Janesville to Thompson Peak, Diamond Range. 1783 Comment
  SEINET7559362 Image available Carex fracta Barbara L. Wilson, Richard Brainerd, Bruce Newhouse 2004-8-28 11194 Lassen Near Bluff Falls in the Lassen National Forest, approximately 0.7 air mile south of the south boundary of Lassen Volcanic National Park on Highway 89. 1981 Comment
  CAS-BOT-BC22236  Carex haydeniana John Thomas Howell 1934-6-14 12164 Lassen Near Lost Lake. Warner Mountains. 2438 Comment
  UC190415  Carex hoodii M. S. Baker and Frank Nutting 1894-1 Lassen Comment
  CHSC110898  Carex integra Lowell Ahart; John Dittes 2012-7-9 18299 Lassen In the meadow, about 150 yards southeast of the tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC85008  Carex lenticularis var. lipocarpa L. P. Janeway; B. Castro 2003-10-5 8004 Lassen High Cascade Range. Western edge of Triangle Lake; Caribou Wilderness Area. 2153 Comment
  HSC103673  Carex lenticularis var. lipocarpa Thomas W. Nelson, Jane Nelson 1985-8-10 8023 Lassen Margin of pond along south side of lava flow on west side of Silver Lake 1829 Comment
  CDA33106  Carex limosa Gordon Leppig, J. Cromwell 1997-7-27 610 Lassen Modoc National Forest. Blue Lake Ranch. Comment
  UC1136939  Carex mariposana L. R. Short and J. Warren 1936-6-9 S- 405 Lassen Burgess Spr. Exp. Range Lassen Forest 1844 Comment
  CAS-BOT-BC31946  Carex microptera Clare B. Hardham 1971-8-22 18373 Lassen Streamside, Diamond Mt. 2346 Comment
  HSC48180  Carex multicostata D. H. Norris, Thomas W. Nelson, S. Dowty 1971-6-22 19240 Lassen 2 mi. N of Westwood Comment
  CHSC25910  Carex nebrascensis K. R. Stern 1967-6-25 2429 Lassen Road to Eagle Lake Biological Station, Dean's Meadow near Gallatin Peak, ca. 3 mi. S of Eagle Lake. 1676 Comment
  CHSC98668  Carex nebrascensis Thomas W. Nelson; Jane P. Nelson 1985-8-10 8019 Lassen In lake side bog along north side of Silver Lake. 1828 Comment
  UC2031881  Carex nebrascensis Nick Otting and Danna Lytjen 2003-7-17 693 Lassen Cascade Mountains, Susan River, 1/2 mile NE of Devil's Corral, 5 air miles west of Susanville. Comment
  HSC103643  Carex nebrascensis Thomas W. Nelson, Jane Nelson 1985-8-10 8019 Lassen Along north side of Silver Lake 1829 Comment
  CAS-BOT-BC119044  Carex pellita Marcus E. Jones 1897-7-2 s.n. Lassen Susanville Summit 1828 Comment
  CHSC85980  Carex pellita L. P. Janeway 2003-7-24 7919 Lassen High Cascade Range. In middle of small meadow below Forest Service Road 30N14 1.1 km from Road 30N21; small side drainage of upper Susan River 4.6 (air) km west of Clover Valley. 1920 Comment
  CHSC93433  Carex petasata Martin J. Lenz 2004-6-23 221 Lassen Approx. 0.6 air mi. WSW of Schoonamaker Lake. UTM 10 664213 E 4515435 N. Edge of seasonally wet meadow. 1707 Comment
  UC1133449  Carex petasata Robert W. Gardner 1937-6-18 G 6 Lassen Burgess Spring Experimental Range 1699 Comment
  CAS-BOT-BC119055  Carex phaeocephala Ira L. Wiggins; Dorothy B. Wiggins 1961-6-10 16326 Lassen Sedgy meadow along southern shore of Eagle Lake. Comment
  CHSC91377  Carex praegracilis Lowell Ahart; John Dittes 2005-6-1 11859 Lassen On the west side of a 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
  CHSC91379  Carex praegracilis Lowell Ahart; John Dittes 2005-6-1 11864 Lassen On the west side of a 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
  SEINET7572132 Image available 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
  UC1133503  Carex praegracilis Robert W. Gardner 1939-6-15 G- 37 Lassen Little Harvey Valley Halls Flat Quadrangle Comment
  JEPS118161  Carex rossii Dean W. Taylor 2009-5-20 20604 Lassen Widow Valley; Big Valley Mountains, logging road ca. 1 air mile NW of Brown Cabin [USGS map, site] 1478 Comment
  HSC95281  Carex simulata Gordon Leppig, J. Cromwell 1997-7-27 619 Lassen Modoc National Forest, Blue Lake Ranch. 1970 Comment
  HSC95305  Carex simulata Gordon Leppig, Tony LaBanca, L. Arguello 1997-6-28 514 Lassen Modoc National Forest, Blue Lake Ranch 1970 Comment
  SEINET6171441  Carex simulata CLM Team 2014-7-29 NV 030 -984 Lassen From Reno head north on 395, turn right onto Red Rock Rd. and proceed roughly 0.5-0.75 of a mile and park at dirt pull off on the right side of the road 1381 Comment
  UC1142951  Carex simulata A. L. Hormay 1941-6-23 14 Lassen Burgess Spring Lassen National Forest 1676 Comment
  CAS-BOT-BC116615  Carex subfusca Hans Leschke 1960-8-8 1738 Lassen Below trail Ski Hut-Crumbaugh Lake. 1981 Comment
  CAS-BOT-BC116623  Carex subfusca John Thomas Howell 1973-7-10 49765 Lassen Near Westwood. 1554 Comment
  SEINET4292053 Image available Carex subfusca Unknown 2004-1 8169 Lassen High Cascade Range, along Road 33N15 (Lassen Trail) between Patterson Flat and Aspen Flat; Blacks Mountain Experimental Forest. Comment
  UC1108036  Carex subfusca E. B. Copeland 1952-8-13 Lassen at road crossing King's Creek Meadow; Mount Lassen 2225 Comment
  CAS-BOT-BC116608  Carex subfusca Hans Leschke 1959-8-10 1641 Lassen Above Emerald Lake 2438 Comment
  CAS-BOT-BC116616  Carex subfusca B. Clear 1938-7-13 s.n. Lassen Dersch Meadows, Lassen Park. 2016 Comment
  SEINET7577217 Image available Carex subfusca George W. Gillett 1957-7-26 913 Lassen Lassen Volcanic National Park, Butte Lake. 1844 Comment
  CHSC76792  Carex utriculata L. P. Janeway 1999-9-5 6580 Lassen High Cascade Range. Upper Pine Creek near Stephens Camp; northwest corner of Upper Stephens Meadow. 1900 Comment
  HSC103677  Carex vesicaria Thomas W. Nelson, Jane Nelson 1985-8-10 8029 Lassen Silver Lake, along north side of arm on east side of lake. 1829 Comment
  CDA33174  Carex vesicaria var. vesicaria Gordon Leppig 1998-8-17 1040 Lassen Northern California Peatlands; Modoc National Forest. Blue Lake Ranch. Comment
  HSC48179  Carex whitneyi D. H. Norris, Thomas W. Nelson, S. Dowty 1971-6-22 19241 Lassen 2 mi. N of Westwood Comment
  CAS-BOT-BC114878  Carex whitneyi J. Stebbins 1974-7-18 s.n. Lassen Roop Mountain. 2133 Comment
  CAS-BOT-BC114884  Carex whitneyi Hans Leschke 1958-8-15 s.n. Lassen Trail Butte-to Snag Lake near Lava beds. 1920 Comment
  CHSC106686  Castilleja angustifolia B. Ignacio 2008-5-3 Lassen Fort Sage Mountains. 1520 Comment
  CAS-BOT-BC249340  Castilleja applegatei Gary Schoolcraft 1983-7-19 1097 Lassen S. slopes of Fredonyer Pk. 33-12-27 2255 Comment
  CAS-BOT-BC249624  Castilleja applegatei subsp. pinetorum Francis W. Pennell 1940-6-9 25769 Lassen Route 36, Susanville 1371 Comment
  CHSC12459  Castilleja applegatei subsp. pinetorum Robert W. Severin 1969-7-6 5 Lassen 1 mile e E.L.B.S. on road to Five Points. Comment
  CHSC13732  Castilleja applegatei subsp. pinetorum Cornell Freeman 1973-7-11 5 Lassen Found on Gallatin Pk. on the east side of Eagle Lake. Comment
  CHSC36484  Castilleja applegatei subsp. pinetorum Margaret E. Halloran 1982-6-3 5 Lassen 3 1/2 mi s of jct of forest service roads 5.16 and 5.17. Comment
  CHSC6267  Castilleja applegatei subsp. pinetorum M. West 1946-6-20 Lassen Meadown above Grasshopper Valley. 1645 Comment
  JEPS81611  Castilleja applegatei subsp. pinetorum M. S. Taylor and B. Hammond 1982-8-27 5052 Lassen ca 6 air mi sw Doyle; Constantia Quad., Diamond Mts., Crystal Peak Area 2377 Comment
  UC1136983  Castilleja applegatei subsp. pinetorum L. R. Short and J. Warren 1936-6-5 S- 378 Lassen Burgess Spring Experiment Range; Lassen Forest 1792 Comment
  UC1374836  Castilleja applegatei subsp. pinetorum Noel H. Holmgren, John J. Fay, and Barton L. Bethers 1970-6-24 4372 Lassen 2 mi w Westwood (at edge of airstrip) 1554 Comment
  UCR268960  Castilleja applegatei subsp. pinetorum Jim Andre, Tasha La Doux, Senna T. Andre, Elias Andre 2013-7-12 31428 Lassen along north side of Hwy 44 at south end of Grays Valley, along National Forest Route 33N02, north of Bogard Buttes, c. 30 mi west of Susanville 1733 Comment
  UC1563850  Castilleja arachnoidea Barbara Ertter 1988-7-25 7861 Lassen ca 1.5 mi e Diamond Peak (ca 10 air mi due s of Susanville, ridge of Diamond Mts); Diamond Mts. 2286 Comment
  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
  JEPS3595  Castilleja campestris subsp. campestris Helen-Mar Wheeler 1952-7-11 Lassen s of Madeline Comment
  JEPS74939  Castilleja campestris subsp. campestris T. I. and F. M. Chuang 1975-7-23 7552 Lassen 3.2 mi s Madeline (along Hwy 395) Comment
Read comments
Jun 3 2009
  SEINET3159144  Castilleja chromosa J. L. Strother 1970-5-23 954 Lassen about 6 mi N of Honey Lake 1280 Comment
  OBI48148  Castilleja chromosa Rhonda Riggins 1989-4-27 1639 Lassen Wash through volcanic boulder pavement, US 395, 8.4 mi N Litchfield, 26.6 mi S Ravendale 1311 Comment
  SEINET10549093  Castilleja chromosa Mary Susan Taylor 1982-5-29 Taylor 4568 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
  SEINET10457537  Castilleja disticha Morris 1973-5-25 MORRIS 221 Lassen Collected in an area of sugar pine, libcedrus, and yellow pine. 2.5 Mi n of jct 36 and hwy 44. Comment
  JEPS81867  Castilleja lacera L. R. Heckard with J. C. Hickman 1982-5-11 5841 Lassen about 2.5 mi w Paynes Creek (along Highway 36 to Mt Lassen (6.5 mi ne of Dales)) 518 Comment
  UC1924577  Castilleja lacera Debra Valov 2006-5-29 2006028 Lassen Bieber off County Rd A2 c. 8.7 km east of Hwy 299 1285 Comment
  OBI75870  Castilleja lemmonii Anthony Baniaga 2011-8-10 495 Lassen Lassen Natl Forest. Barnes Flat. Swain Mtn quad. T30N R8E sec 9 SE of SE 1769 Comment
  CHSC4817  Castilleja linariifolia R. Carter 1967-7-16 617 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
  CHSC63419  Castilleja linariifolia Vernon H. Oswald 1994-7-8 6369 Lassen Wildlife Viewing Area along Hwy. 139 on the NE shore of Eagle Lake, 5.9 mi S of County Rd. 201 (A1). 1557 Comment
  HSC63893  Castilleja linariifolia Teresa Prendusi 1980-7-1 Lassen McCoy Flat, 5 mi. E of northern tip of Eagle Lake 1646 Comment
  RSA18167  Castilleja miniata Carl B. Wolf 1929-9-1 3778 Lassen Mt. Lassen Nat'l Park, between Grassy Lake and Snag Lake. Comment
  CHSC81564  Castilleja minor subsp. minor Vernon H. Oswald 2001-9-26 10058 Lassen Dakin Unit of Honey Lake Wildlife Area. 1219 Comment
  CHSC5902  Castilleja pilosa J. B. Kimsey 1946-6-17 Lassen Mt. Fredonyer. Eagle Lake. 2133 Comment
  CHSC99291  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
  JEPS86248  Castilleja pilosa L. R. Heckard and T. I. Chuang 1981-6-10 5529 Lassen about 0.5 mi e Nubieber 1249 Comment
  RSA637591  Castilleja pilosa Michael A. Vincent 1999-6-9 8584 Lassen Along US Rt. 395, south of Ravendale Fire Station, 1.8 miles north of rest area, and 24.8 miles north of Litchfield. 1524 Comment
  SBBG7071  Castilleja pilosa H. and M. Dearing 1939-6-6 3566 Lassen Pitt River, near Bieber Comment
  UC1012185  Castilleja pilosa Francis W. Pennell 1940-6-9 25761 Lassen 5 mi s Ravendale (Route 395) 1645 Comment
  UC1063499  Castilleja pilosa A. Simontacchi 1940-6-30 910 Lassen 4.2 mi s Blacks Mtn.; Lassen National Park, Halls Flat Quad. 1699 Comment
  UC1483790  Castilleja pilosa Mary Meyer 1980-7-1 Lassen Champs Flat 1677 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
  CHSC99526  Castilleja tenuis Lowell Ahart; John Dittes 2008-6-20 14944 Lassen In vernal pools and swales, about 100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. 1263 Comment
  UC1483853  Castilleja tenuis G. Schoolcraft 1980-7-16 316 Lassen near Nelson Corral Reservoir 1804 Comment
  CHSC115601  Caulanthus major var. nevadensis Lowell Ahart; John Dittes 2015-7-14 30329 Lassen On the west side of the road, about 100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters of Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. 1267 Comment
  UCD164134  Caulanthus major var. nevadensis N. Ivalu Cacho; Sharon Y. Strauss, Bryan T. Drew 2010-7-5 IC-SS 127 - Lassen Fredoyner Peak; on rocky outcrop on summit. 2393 Comment
  CAS-BOT-BC48533  Ceanothus cordulatus G. Schoolcraft 1988-7-11 1823 Lassen Along Hwy. 44 ca 5 miles n. of Hwy. 36 intersect. Susanville, California 1676 Comment
  SEINET210873  Ceanothus cordulatus N. H. Holmgren, JJ Fay; BLBethers 1970-6-24 4373 Lassen 2 miles west of Westwood at edge of airstrip 1554 Comment
  CAS-BOT-BC52050  Ceanothus prostratus L. B. Barlow 1967-7-4 92 Lassen 5 mi. South of Eagle Lake Biological Station on Gallatin Beach Road 1737 Comment
  UC1071527  Ceanothus prostratus K. Bradshaw 1939-5-27 233 Lassen Black Mt. Experimental Forest - Plot 39-1, s end Lassen National Forest, Halls Flat Quad. Comment
  UC727092  Ceanothus prostratus A. A. Heller 1941-6-26 16230 Lassen on roadside banks on the ridge w Nieubieber; w of Nieubierber Comment
  UC1736108  Ceanothus prostratus var. prostratus Dean W. Taylor 1974-7-13 4067 Lassen Lassen National Forest, Thousand Lakes Wilderness, vicinity of Magee Pk, T33N R3E SE1/4 Sect. 27 2484 Comment
  CHSC6287  Ceanothus velutinus R. Clicquennoi 1967-7-1 37 Lassen Four miles s of Eagle Lake Biology Station off Gallatin Beach Road. 1554 Comment
  CDA7223  Centaurea diffusa T. C. Fuller 1962-8-28 9480 Lassen East side of Highway 395 to Madelaine, 1.6 miles north of Termo. 0 Comment
  CDA36156  Centaurea maculosa CDFA Staff Jul 1998 Lassen Susanville. 0 Comment
  CAS-BOT-BC284470  Centaurea solstitialis Yeager 1929-8-29 s.n. Lassen Honey Lake District Comment
  NY444409  Centaurea solstitialis G. Schoolcraft 1982-8-17 866 Lassen Along Smoke Creek Road, just east of Hwy 395 Comment
  CDA7344  Centaurea squarrosa Loring White 1950-8-19 Lassen Cramer Ranch. Big Valley. 0 Comment
  JEPS78140  Centaurea virgata subsp. squarrosa Sally Levingson 1972-7-19 99 Lassen 2 mi east of Beiber on Highway A2 beside the road. 975 Comment
  RSA97606  Centaurea virgata subsp. squarrosa Loring White 1950-8-9 s.n. Lassen Cramer Ranch, Big Valley Comment
  UCR47641  Centaurea virgata var. squarrosa Don Pendleton 1986-6-25 s.n. Lassen Beiber, NE of Fall River Mills, Hwy 299 1258 Comment
  JEPS102715  Centaurium exaltatum Vernon H. Oswald 2001-9-26 10057 Lassen Dakin Unit of Honey Lake Wildlife Area. 1219 Comment
  JEPS84967  Centaurium exaltatum Barbara Ertter 1987-7-24 7305 Lassen ca 0.75 mi ene Beckwourth Pass (at the end of old crumbling paved road) 1524 Comment
  JEPS95910  Centromadia pungens subsp. pungens Lowell Ahart 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-BC279595  Centromadia pungens subsp. pungens Gladys L. Smith; Margaret Williams; Loring Williams; Charles Smith 1983-9-15 8392 Lassen Along Lassen 3-A, the Susanville By-pass for Rte. 395 1219 Comment
  CHSC7715  Cerastium fontanum subsp. vulgare Beverley J. Wise 1969-5-23 5 Lassen Susanville--833 Mark St. Garden. 1310 Comment
  CHSC99741  Cerastium glomeratum Lowell Ahart; John Dittes 2008-6-20 14966 Lassen About 10 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7.0 miles (air) northeast of Bieber. 1263 Comment
  UC956838  Ceratophyllum demersum Verne Grant and Irving Schneider 1947-9-6 8384 Lassen Creek midway between Eagle Lake and Susanville; creek midway between Eagle Lake and Susanville Comment
  CAS-BOT-BC400183  Ceratophyllum demersum D. Toren; B. Trowbridge 1975-6-19 5183 Lassen Blue Lake 1828 Comment
  CAS-BOT-BC143809  Cercocarpus ledifolius var. ledifolius A. G. Brenneis 1928-5-28 B 3 Lassen 1/2 mi. East of Willow Springs, Lassen National Forest 1371 Comment
  CHSC21174  Cercocarpus ledifolius var. ledifolius M. S. Taylor 1974-5-4 226 Lassen Scattered on e side of marsh, ca. 1/2 mi n of Eagle Lake Field Station, ca. 13 mi nw of Susanville. Comment
  JEPS28675  Cercocarpus ledifolius var. ledifolius George W. Gillett 1957-7-26 902 Lassen Butte Lake, Lassen Volcanic National Park Butte Lake; Lassen Volcanic National Park, Butte Lake 1844 Comment
  CHSC48134  Chaenactis douglasii var. douglasii Vernon Oswald 1986-6-15 2116 Lassen Hwy 139, 8.6 mi ne of Susanville. 1615 Comment
  CHSC93690  Chaenactis douglasii var. douglasii Lowell Ahart; John Dittes 2005-6-1 11893 Lassen On the east side of Scott Road, Long Valley, about 4 3/8 miles (air) north of the intersection of Scott Road and Highway 70, about 5.7 miles (air) northwest of Hallelujah Junction. 1460 Comment
  UC1136776  Chaenactis douglasii var. douglasii L. R. Short and Wm. Gansberg 1946-7-9 S- 480 Lassen Burgess Spring Experimental Range Lassen Forest, Burgess Spring Experimental Range 1804 Comment
  UC579800  Chaenactis douglasii var. douglasii David D. Keck and J. Clausen 1935-6-25 3755 Lassen just w of town Susanville 1300 Comment
  CAS-BOT-BC276622  Chaenactis douglasii var. douglasii Margaret Williams 1974-7-27 74 -L-52 Lassen Burned area near Hallelujah Junction, W of Highway 395 and S of Highway 70 1493 Comment
  CDA10717  Chaenactis glabriuscula var. megacephala T. C. Fuller 1963-6-1 10628 Lassen East side of road to Hall s Flat, 4.9 miles south of Pittville. 0 Comment
  UC1567442  Chaenactis stevioides G. Schoolcraft 1989-5-31 1886 Lassen about 4 mi n of Wendel Rd. (along Skedaddle Ranch Road) 1493 Comment
  RSA748319  Chamaebatia foliolosa K. M. Meyer, A. Townesmith 2007-7-23 149 Lassen Lassen National Forest. 6 miles SW on 32N10 off Hwy. 44. (Turn at rest area on Hwy. 44). At junction of 32N10, 32N09 and 31N36. 1993 Comment
  CHSC6251  Chamaebatiaria millefolium 1944-7-16 Lassen West side of Eagle Lake. 1584 Comment
  UC526157  Chamaebatiaria millefolium John Thomas Howell 1934-7-9 12519 Lassen Pine Creek Flat Comment
  JEPS5990  Chamaesaracha nana Frances D. Payne 1929-7-12 77 Lassen near Lost Lake (camp 1, se extremity of Warner Mountains); Warner Mountains 2286 Comment
  UC1125090  Chamaesaracha nana A. Simontacchi 1940-6-8 831 Lassen Halls Flat Ranger Station; Lassen National Forest, Halls Flat Quad. 1706 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
  UC1130434  Chamaesyce serpyllifolia A. Simontacchi 1940-7-7 943 Lassen Halls Flat Ranger Station 1706 Comment
  SJSU10817  Chamaesyce serpyllifolia C. L. Kline 1965-7-12 190 Lassen 8.3 mi NE of Susanville by Hwy 139 1036 Comment
  CAS-BOT-BC383107  Chamerion angustifolium subsp. circumvagum Andrew Townesmith; Karen M. Meyer 2007-7-20 838 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 1429 Comment
  CHSC6188  Chamerion angustifolium subsp. circumvagum P. Balch 1955-7-23 Lassen Eagle Lake. Paul Bunyan road, 3 1/2 mi. from Susanville. Comment
  UC62593  Cheilanthes intertexta Baker and Nutting 1894-7-3 Lassen Dixey Mts Comment
  JEPS95711  Chenopodium album Vernon H. Oswald and L. Ahart 1995-8-14 7180 Lassen T30N R15E center NE1/4 Sec. 3, 4425 ft, Modoc Plateau, Sagebrush Scrub, alkaline clay soil. Hwy. 395 at the N end of a Mud Flat, 3.4 mi N of Smoke Creek Ranch Rd., N of Susanville 1348 Comment
  UC1191355  Chenopodium berlandieri Verne Grant and Irving Schneider 1947-8-1 8229 Lassen irrigation ditch running sw into State Fish and Game nesting area on west end of Section 19; Madeline Plain Comment
  UC1949078  Chenopodium berlandieri Barbara Ertter 1987-7-24 7301 Lassen ca 3/4 mi ENE of Beckwourth Pass Comment
  UC1949076  Chenopodium desiccatum Barbara Ertter 1988-7-25 7871 Lassen ridge of Diamond Mts. ca 1.5 mi E of Diamond Peak, ca 10 airmiles due S of Susanville; spur on N-face. Comment
  CAS-BOT-BC426335  Chenopodium incognitum John Thomas Howell 1934-6-10 11900 Lassen 5 miles N of Horse Lake on road to Alturas Comment
  SEINET4171909  Chenopodium leptophyllum M. J. Williams 1974-7-26 74 -L-36 Lassen 2 miles west of Hallelujah Junction, south of HWY 70 1494 Comment
  CAS-BOT-BC39672  Chorispora tenella Gary Schoolcraft 1982-3-24 624 Lassen Lower end of Amedee Canyon. 1280 Comment
  SBBG18321  Chorizanthe watsonii C. B. Hardham 1961-6-17 7499 Lassen Baxter Crk, S of Susanville 1524 Comment
  UCSB17200  Chorizanthe watsonii Hardham, Clare 1961-6-17 Lassen Baxter Cr. south of Susanville, Sierra Nevada Mountains 1524 Comment
  UC1135263  Chrysolepis sempervirens A. Simontacchi 1940-8-8 938 Lassen 4.2 mi w Harvey Mtn. Lookout; Lassen National Forest, Halls Flat Quad. 1889 Comment
  CHSC25128  Chrysothamnus Paul Lyman 1970-5-2 28 Lassen Bald Mountain; Janesville. On slope of Bald Mountain which lies 10 miles east of Susanville. Comment
  CAS-BOT-BC140659  Chrysothamnus humilis John Thomas Howell 1974-7-9 50485 Lassen SW of Wildcat Point, Eagle Lake 1554 Comment
  CHSC78477  Chrysothamnus humilis Beth Corbin 2000-7-24 979 Lassen Northeast of Poison Lake, just east of the Pittville Highway. 1705 Comment
  UC1137593  Chrysothamnus humilis L. R. Short and J. Warren 1936-8-17 S- 495 Lassen Burgess Spr. Exp. Range Lassen Forest 1760 Comment
  UC773961  Chrysothamnus humilis L. R. Short and J. Warren 1936-8-17 S- 495 Lassen Burgess Spring Experiment Range Lassen Forest 1760 Comment
  CDA36350  Chrysothamnus nauseosus B. Villegas 2011-8-25 Lassen Highway 395 just above Doyle. 0 Comment
  HSC103551  Chrysothamnus viscidiflorus subsp. viscidiflorus Thomas W. Nelson, Jane Nelson 1985-8-10 8030 Lassen Along north side of Silver Lake 1829 Comment
  JEPS21415  Chrysothamnus viscidiflorus subsp. viscidiflorus R. F. Hoover 1940-10-5 4664 Lassen Wendel 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
  RSA22626  Chrysothamnus viscidiflorus subsp. viscidiflorus Mary DeDecker 1955-8-25 263 Lassen Honey Lake: Highway 395. Comment
  UC761845  Chrysothamnus viscidiflorus subsp. viscidiflorus R. F. Hoover 1940-10-5 4664 Lassen Wendel Comment
  SD43500  Chylismia claviformis subsp. cruciformis Philip A. Munz 1947-5-19 11870 Lassen 19 miles south of Ravensdale on Highway 395. 1341 Comment
  RSA748313  Cichorium intybus K. M. Meyer, A. Townesmith 2007-7-19 133 Lassen Lassen National Forest. CA, 0.2 mi. on 29N03, off HWY 36 on pullout just past a dry creek. 1459 Comment
  RSA299121  Cinna latifolia J. T. Howell, Gordon H. True 1973-8-1 50346 Lassen Gold Run Creek road, south of Susanville, Diamond Range. 1951 Comment
  CHSC115576  Cirsium Lowell Ahart; John Dittes, Joe DiSalvo 2015-7-14 20322 Lassen On the south side of the levee road, about 300 yards west of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1260 Comment
  UCD130505  Cirsium canescens T. C. Fuller 1980-8-5 20311 Lassen east shore of Dodge Reservoir, 28 km (17.5 miles) northeast of Ravendale. Comment
  CAS-BOT-BC277935  Cirsium canovirens T. C. Fuller 1959-7-7 2739 Lassen Hwy. 395, 6 miles north of the road to Karlo Comment
  CAS-BOT-BC278005  Cirsium cymosum Mrs. H. C. Cantelow 1940-5-31 s.n. Lassen 5 miles east of McArthur, on highway 299 Comment
  JEPS59279  Cirsium occidentale var. californicum W. L. Jepson 1918-8-4 7807 Lassen Horse Lake 1554 Comment
  CDA1489  Cirsium ochrocentrum Lee Wheeler 1959-7-23 s.n. Lassen Richmond Rd., about 4 mi. SE of Susanville. (Janesville, SW of Johnstonville.) Comment
  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
  CDA1519  Cirsium ochrocentrum var. ochrocentrum Lee Wheeler 1952-8-29 s.n. Lassen Honey Lake Clarence Hoffman Ranch (near Janesville Grade/ Parker Creek?) 0 Comment
  CAS-BOT-BC286302  Cirsium scariosum John Thomas Howell 1934-6-14 12153 Lassen Near Lost Lake, Warner Mts. 2438 Comment
  CDA1557  Cirsium scariosum T. C. Fuller, E. E. Fix 1959-7-23 2825 Lassen Near Ravendale. 0 Comment
  CDA20242  Cirsium undulatum G. D. Barbe 1984-8-2 4186 Lassen Madeline Plains; Just e of Westside Rd, 3 mi no f Termo-Grasshopper Rd., Madeline Plains, along e base of Dry Valley Ridge. 1615 Comment
  RSA186831  Cirsium undulatum T. C. Fuller 1966-7-22 14981 Lassen East of road at the east base of Dry Valley Ridge, Madelaine Plains, 3 miles north of paved road, 10 miles west of Termo. Comment
  CHSC7631  Cirsium vulgare Beverley J. Wise 1968-8-23 16 Lassen 10 mi. N.W. of Susanville on the Las. Co. Rd. 201. 1798 Comment
  CAS-BOT-BC439005  Cistanthe monosperma Jeanne Janish; Carl Janish 1938-9-6 s.n. Lassen Near Summit Lake, Lassen National Park. 2042 Comment
  CAS-BOT-BC233918  Cistanthe umbellata D. B. Dunn; B. J. Cox 1971-6-2 17792 Lassen 6 mi. N. of Halleluja Jct. on U.S. Hwy 395 1402 Comment
  CAS-BOT-BC162636  Clarkia John Thomas Howell 1974-7-30 s.n. Lassen Diamond Mountain - Sierra Nevada 2286 Comment
  JEPS107812  Clarkia lassenensis Lowell Ahart, John Dittes 2005-6-2 11951 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
  JEPS90014  Clarkia purpurea subsp. quadrivulnera Dean Wm. Taylor with Robert A. Price 1988-6-4 9770 Lassen 6 mi e of MacArthur (Fall River Valley along Highway 299 at crossing of Frazer Creek, Pit River Watershed); Fall River Valley, Highway 299 1036 Comment
  CHSC6185  Clarkia purpurea subsp. viminea 1944-7-1 Lassen Eagle Lake. 1584 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
  CHSC4775  Clarkia rhomboidea R. Carter 1967-6-27 564 Lassen Ca. 10 yds off S side of Rd. Comment
  UC1122437  Clarkia rhomboidea A. Simontacchi 1940-6-23 885 Lassen 3.2 mi sw Schoonamaker Lake; Lassen National Forest, Halls Flat Quadrangle Comment
  UC1137738  Clarkia rhomboidea George A. Fischer, Irwin H. Johnson 1933-7-14 F 246 Lassen Lassen National Forest 1767 Comment
  UC1587045  Clarkia rhomboidea G. Schoolcraft 1991-7-30 2194 Lassen e side Widow Mountain 1889 Comment
  RSA46419  Clarkia stellata Marcus E. Jones 1897-6-28 s.n. Lassen Diamond Mountain; Susanville; Perkin s Ranch. 1829 Comment
  CHSC61167  Claytonia lanceolata Vernon H. Oswald; Lowell Ahart 1993-5-12 5381 .1 Lassen Forest Rd. 32N08 to Crater Lake, 0.5 mi NE of Hwy. 44, between A21 (to Westwood) and Poison Lake, on the edge of a large meadowy opening covered with sagebrush scrub along Pine Creek. 1737 Comment
  RSA0080500  Claytonia lanceolata M. S. Baker 1952-5-23 12429 Lassen Hwy. 36; 0.5 mi. West of Predonyer Pass. 1753 Comment
  CHSC106577  Claytonia rubra subsp. depressa C. Dow; D. Garrison 2008-5-3 Lassen Fort Sage Mtns. OHV Trailhead and Trail to Indian Springs. 1439 Comment
  CHSC34942  Claytonia rubra subsp. rubra P. Fehr 1974-4-24 4 Lassen Ca. 1.75 mi n of junction of Cherry Terrace and Piute Creek, Susanville. 1219 Comment
  UC1136746  Claytonia rubra subsp. rubra A. Simontacchi 1940-5-21 758 Lassen 4.1 mi sse Blacks Mtn.; Lassen National Forest, Halls Flat Quad. 1737 Comment
  UC452681  Claytonia umbellata Milo S. Baker 1890-1 Lassen Milford 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
  NY222830  Cleome platycarpa G. H. True Jr. 1937-6-27 792 Lassen Near Skeedaddle. 1524.0 Comment
  CAS-BOT-BC32957  Cleomella alata C. C. (Mrs.) Bruce 1898-6-1 2364 Lassen Shumway Comment
  JEPS42688  Cleomella parviflora J. Burtt Davy Jun 17 1897-Jun 24 1897 3352 Lassen Amedee Honey Lake Vally Comment
  SEINET5765627  Cleomella parviflora A. Tiehm 1980-1 5748 Lassen North end of Honey Lake Valley, just north of Hot Springs 1.1 air miles NNW of Wendel. 1231 Comment
  CAS-BOT-BC423225  Cleomella plocasperma G. Schoolcraft 1998-7-14 2759 Lassen Along Wendel Rd. near Amedee Hot Spring area. 1219 Comment
  CAS-BOT-BC423226  Cleomella plocasperma G. Schoolcraft 1986-6-11 1620 Lassen About 1 mile west of CA-NV stateline along Smoke Creek Road. 1341 Comment
  POM93728  Cleomella plocasperma Marcus E. Jones 1897-6-23 s.n. Lassen Amedee. 1220 Comment
  JEPS11714  Collinsia parviflora F. W. Pennell 1940-6-9 25752 Lassen 7 mi n Madeline (along Rte 395) 1615 Comment
  JEPS17625  Collinsia parviflora Rimo Bacigalupi with G. Thomas Robbins 1955-7-19 5375 Lassen 2 mi w Ash Valley (along rd from Adin to Madeleine, in rd fill) 1371 Comment
  SEINET10315318 Image available Collinsia parviflora Jeffrey Huber 1971-6-2 127 Lassen Approximately 30 miles north of Susanville, on California Hwy 139 1646 Comment
  UC1143037  Collinsia parviflora L. R. Short 1936-5-7 S 344 Lassen Lassen National Forest, Burgess Spring Experimental Range Burgess Spring Experimental Range; Lassen National Forest, Burgess Spring Experimental Range 1737 Comment
  CDA34520  Collinsia parviflora B. Villegas 2011-5-26 s.n. Lassen Susanville, 2.3 miles southwest from junction of Hwy 36 & Hwy 139. 0 Comment
  HSC75886  Collinsia torreyi D. H. Norris, T. Nelson, S. Dowty 1971-6-22 19258 Lassen Harvey Valley near Cone Springs Comment
  CHSC6198  Collomia grandiflora P. Collett 1946-6-24 Lassen Spalding's, Eagle Lake. 1554 Comment
  POM75605  Collomia grandiflora Marcus E. Jones 1897-6-26 10168 Lassen Susanville, Perkin's Ranch. 1463 Comment
  UC1537483  Collomia grandiflora Gordon H. True Jr. 1938-7-9 906 Lassen near Horse Lake 1524 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
  UC23615  Collomia linearis M. S. Baker and Frank Nutting 1894-7-12 Lassen Pine Creek Comment
  CHSC6282  Convolvulus arvensis D. L. Stites 1967-7-1 141 Lassen 10 mi se of Eagle Lake Biology Station on Lower Murrer's Meadow. 1371 Comment
  CHSC7713  Convolvulus arvensis Beverley J. Wise 1969-6-4 33 Lassen 10 mi. east of Susanville on Hwy 395 (Janesville). 1310 Comment
  CAS-BOT-BC286113  Conyza canadensis John Thomas Howell 1974-7-10 50532 Lassen Elysian Valley 1325 Comment
  UC761797  Cordylanthus ramosus R. F. Hoover 1940-9-28 4640 Lassen Leavitt Comment
  CAS-BOT-BC212205  Cornus sericea Louella Bass 1973-5-29 EU 85 Lassen Elysian Valley 1325 Comment
  CHSC58493  Cornus sericea subsp. sericea Vernon H. Oswald 1992-7-3 5055 Lassen Lassen Volcanic Park. Grassy Creek between Horseshoe and Snag lakes, ca. 0.3 mi NE of the trail to Cameron Meadow. 1950 Comment
  CHSC117526  Crassula aquatica Lowell Ahart; John Dittes 2016-7-13 21117 Lassen Strand of the pond, near where drainage enters pond, 150 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. 1289 Comment
  UC1136839  Crepis acuminata George A. Fischer and Irwin H. Johnson 1933-7-14 F- 266 Lassen Lassen <National> Forest 1752 Comment
  UC581280  Crepis acuminata G. L. Stebbins Jr. and J. A. Jenkins 1937-7-14 2344 Lassen 1 mi sw Grasshopper Valley 1645 Comment
  CAS-BOT-BC291553  Crepis intermedia G. L. Stebbins; J. A. Jenkins 1937-7-10 2315 Lassen Black Mountain about a mile below the summit 1950 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
  UC773981  Crepis intermedia L. R. Short 1935-7-9 S- 509 B Lassen Burgess Spring Experiment Range 1818 Comment
  UC581249  Crepis modocensis G. L. Stebbins Jr. and J. A. Jenkins 1937-7-9 2257 Lassen bare summit ridge and ridges sw Diamond Mt. (s of Susanville, Plumas and Lassen Co.) Comment
  POM230914  Crepis monticola G. Ledyard Stebbins, J. A. Jenkins 1937-7-6 2193 Lassen Susanville, just west of the town, on 'Inspiration Point' Comment
  UC1143044  Crepis monticola L. R. Short and J. Warren 1936-6-23 S- 444 Lassen Burgess Spring Experiment Range Lassen <National> Forest 1839 Comment
  SEINET8513568 Image available Crepis occidentalis A. Rosenblum, A. Ortega, O. Schilling, M. Gray 2015-6-24 NV 030 -1092 Lassen Plumas Allotment, Highway 395 into California, first median crossing after check station, turn right, follow road right (South) take, 2nd left, follow uphill road bearing Southeast until reach gray metal gate, along roadside 1541 Comment
  UC540867  Crepis occidentalis David D. Keck and J. Clausen 1935-6-24 3752 Lassen 2 mi s Ravendale 1463 Comment
  UC581314  Crepis occidentalis G. L. Stebbins Jr. and J. A. Jenkins 1937-7-10 2318 Lassen sw-facing slope about 1 mi below summit; Black Mountain 1940 Comment
  UCD130973  Crepis occidentalis Grady L. Webster 1989-5-13 7722 Lassen 2.5 miles E of Beckworth Pass. 1493 Comment
  UC1609227  Crepis occidentalis subsp. conjuncta Vernon H. Oswald and Lowell Ahart 1993-6-28 5606 Lassen Rd 35N04 n Hwy 44 (nw edge of valley, ne of Poison Lake); Harvey Valley, Aspen Well 1725 Comment
  UC506906  Crepis occidentalis subsp. conjuncta George A. Fischer and Irwin H. Johnson 1933-7-14 F 271 Lassen Lassen <National> Forest 1752 Comment
  UC1483839  Crocidium multicaule G. Schoolcraft 1980-4-6 199 Lassen near base of Bass Hill (along Hwy 395, near city dump) 1280 Comment
  UCD54541  Crypsis schoenoides Ellen Dean; Petra Unger, Dawn Cunningham 2005-10-10 2725 Lassen E. of town of Susanville, along C.R. A27 (Center Rd.) Grounds of California Correctional Facility. Sewage treatment plant area. 1246 Comment
  JEPS94987  Cryptantha ambigua Vernon Oswald and Lowell Ahart 1997-6-24 8593 Lassen s of Susanville (1.2 mi e of Gold Run Road (29N10), on n side of Diamond Mountain on Forest Road 29N43); Diamond Mountain, Forest Road 29N43 1685 Comment
  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
  SEINET8518912  Cryptantha ambigua R. R. Halse 2004-7-8 6616 Lassen Along State Highway 139, ca 6 miles N of Eagle Lake. 1710 Comment
  CHSC64765  Cryptantha circumscissa Vernon Oswald 1995-5-24 6785 Lassen Modoc Plateau. Wendel Rd. (Lassen 320) at milepost 18.5, ca. 1 mi e of Duck Lake Rd. 1219 Comment
  CHSC7765  Cryptantha circumscissa Beverly J. Wise 1969-5-18 77 Lassen 17.2 mi. East of Susanville on Las. Co. Rd 216 off Las. Co. Rd. 215. 1524 Comment
  UCD55276  Cryptantha circumscissa Ellen Dean 2006-5-15 3091 Lassen East of town of Susanville, along County Road A27 (Center Road). Private land north of California Correctional Facility owned by Virginia Johnston, to be purchased by state for expansion of alfalfa fields. 1245 Comment
  POM46564  Cryptantha humilis Marcus E. Jones 1897-6-28 s.n. Lassen Top of Diamond Mt. Susanville. Perkin's Ranch. 2226 Comment
  JEPS109640  Cryptantha intermedia Dean W. Taylor 2002-6-21 18172 Lassen Highway 139 ca. 10 miles N of Susanville, ca. 1 mile south of the southerly end of Willow Creek Valley 1524 Comment
  SEINET8545993  Cryptantha intermedia var. grandiflora J. A. Young 1978-4-13 s.n. Lassen Adin, Meyers Ranch. Comment
  JEPS94701  Cryptantha pterocarya Vernon H. Oswald and Lowell Ahart 1998-5-22 9112 Lassen 5 mi nne of Doyle (Road to ORV parking area in Fort Sage Mountains 0;.6 mi e of Fort Sage Road); Fort Sage Mountains 1402 Comment
  JEPS103198  Cryptantha simulans G. Schoolcraft 1993-6-29 2305 Lassen Ash Valley RNA 16 miles E of Adin S of T in Co. Road 1554 Comment
  RSA164363  Cryptantha simulans Clare B. Hardham 1961-6-17 7505 Lassen Baxter Creek S of Susanville. 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
  RSA123892  Cryptantha torreyana G. A. Fischer, I. Johnson 1933-7-12 F- 222 Lassen Near Sheep bedground. 1723 Comment
  CHSC93552  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
  NY1112083  Cryptantha watsonii B. J. Ertter 1987-6-16 7187 Lassen Skeedaddle Mountains on northeast side of Honey Lake, open rhyolitic ridge west of Hot Springs VABM 2134 Comment
  UC1584020  Cryptantha watsonii G. Schoolcraft 1990-6-12 2089 Lassen about 17 mi e Ravendale (in Pine Dunes RNA) 1706 Comment
  CHSC6214  Cryptogramma acrostichoides P. Balch 1955-6-1 Lassen Silver Lake, Eagle Lake. 1981 Comment
  UCR243134  Cuscuta approximata Jerry Schmierer 1986-9-1 s.n. Lassen Don Blickenstaff Ranch 1220 Comment
  RSA0049616  Cymopterus terebinthinus var. californicus Dean Wm. Taylor 2012-6-7 21237 Lassen Diamond Mountains; Gold Run Road 0.3 miles North of the crest 1950 Comment
  UC1587038  Cynoglossum occidentale G. Schoolcraft 1991-7-30 2192 Lassen Bear <Sring> on n. side of widow Mt. 1780 Comment
  JEPS127205  Cystopteris fragilis Lowell Ahart, John Dittes 2016-6-7 21007 Lassen About 10 yards west of State Highway 299, Big Valley Mountains, 0.4 mile (air) northeast of Big Valley Summit, 5.0 miles (air) southwest of Bieber. Comment
  CAS-BOT-BC208395  Dalea ornata Gary Schoolcraft 1984-6-28 1280 Lassen NW of Shaffer Mtn., on the tablelands 1402 Comment
  POM119128  Damasonium californicum Marcus E. Jones 1897-6-24 s.n. Lassen 10 to 15 miles west from Amedee. 1219 Comment
  CAS-BOT-BC445514  Damasonium californicum 1927-7-15 72 Lassen Lassen National Forest. Feather Lake 1737 Comment
  UC1024653  Danthonia californica Leo Whitney 1933-8-3 2201 Lassen ca 8 mi nw Eagle Lake; Lassen National Forest, Slate Creek 1920 Comment
  UC1136811  Danthonia californica var. americana George A. Fischer and Irwin H. Johnson 1933-7-12 F 236 Lassen Patterson Flat Lassen National Forest 1737 Comment
  UCD60868  Danthonia californica var. americana Mrs. Austin 1894-6-1 295 Lassen Lassen Creek. Comment
Read comments
Jul 11 2013
  CHSC66420  Danthonia unispicata Vernon H. Oswald; Lowell Ahart 1996-6-17 7803 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 the trail between Devils Corral Trailhead and the 6.0 mile post. 1420 Comment
  JEPS88200  Danthonia unispicata Vernon H. Oswald and Lowell Ahart 1996-6-17 7803 Lassen n side of Bizz Johnson Trail between Devils Corral Trailhead and 6.0 milepost (trailhead located off Hwy 36 ca 7 mi w of Susanville); Modoc Plateau 1420 Comment
  UC1609107  Danthonia unispicata Vernon H. Oswald and Lowell Ahart 1993-6-28 5579 Lassen Harvey Valley Rd. (33N02) 0.2 mi n Hwy 44 (e side of valley, e of Poison Lake); Grays Valley 1749 Comment
  UCD61360  Danthonia unispicata John Thomas Howell 1977-6-22 52406 Lassen West of Susanville near the confluence of Willard Creek and Susan River. 1432 Comment
  CAS-BOT-BC291779  Deinandra lobbii John Thomas Howell 1934-7-3 12380 Lassen Big Valley near Bieber Comment
  JEPS79213  Delphinium L. R. Heckard with R. C. Bacigalupi 1980-6-12 5254 Lassen ne Westwood (near golf course) 1554 Comment
  UC726248  Delphinium andersonii A. A. Heller 1938-6-23 15217 Lassen flat along US Hwy 395 between Termo and Madeline 1524 Comment
  UCD55273  Delphinium andersonii Ellen Dean 2006-5-15 3083 Lassen East of town of Susanville, along County Road A27 (Center Road). Private land north of California Correctional Facility owned by Virginia Johnston, to be purchased by state for expansion of alfalfa fields. Northern part of Johnston property near sandy wash. 1249 Comment
  RSA0005299  Delphinium armeniacum A. A. Heller 1938-6-4 15149 Lassen 1 mile east of Fredonyer Pass on hwy 36. 1707 Comment
  UC726275  Delphinium nudicaule A. A. Heller 1940-5-22 15663 Lassen hill back of Westwood Cemetery (station several mi w of type station) Comment
  CAS-BOT-BC116044  Delphinium nuttallianum John Thomas Howell; Gordon H. True; Margaret Williams 1973-5-12 49180 Lassen Sierra Nevada, Elysian Valley northwest of Janesville. 1325 Comment
  HSC27049  Delphinium nuttallianum D. H. Norris, Thomas W. Nelson, S. Dowty 1971-6-22 19195 Lassen Harvey Valley near Cone Springs Comment
  UC1584004  Delphinium nuttallianum G. Schoolcraft 1990-5-15 2051 Lassen about 4 mi s Nubieber; John's Valley area 1310 Comment
  UC1131416  Deschampsia cespitosa H. S. Yates 1936-8-12 6087 Lassen Westwood Susanville Quad., Westwood Comment
  CAS-BOT-BC194257  Deschampsia cespitosa subsp. cespitosa John Thomas Howell 1934-7-9 12517 Lassen Bridges Creek Spring Comment
  CHSC113927  Deschampsia cespitosa subsp. cespitosa Lowell Ahart 2014-8-20 19719 Lassen All over the meadow, 0.8 mile west of Forest Road 32N22 (Westwood Logging Road), about 4.2 miles southeast (by road) from Bogard Rest Area on the south side of Highway 44. 1894 Comment
  RSA126933  Deschampsia cespitosa subsp. cespitosa G. A. Fischer, I. H. Johnson 1933-7-14 F- 244 Lassen Patterson Flat 1738 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
  UC1131559  Deschampsia danthonioides A. Simontacchi 1940-6-15 873 Lassen 6.4 mi. w.-n.w. Cone Mt.; Lassen Nat'l Forest, Halls Flat Quad. Comment
  UCD62514  Deschampsia danthonioides L. Whitney 1935-6-20 3251 Lassen Camp 10, Fruit Grower's Supply Company, Lassen National Forest. Comment
  HSC68802  Deschampsia elongata G. Schoolcraft 1980-8-13 350 Lassen N side of Diamond Mountain. 1951 Comment
  UC1542918  Descurainia californica G. Schoolcraft and B. Ertter 1987-6-16 1747 Lassen Skedaddle Mtns. 1828 Comment
  CHSC25101  Descurainia pinnata W. R. Lessig 1967-6-24 3 Lassen 1/4 mi. N. of Eagle Lake Biology Station. 1584 Comment
  UC1126907  Descurainia pinnata A. Simontacchi 1940-6-4 808 Lassen 14.8 mi w Harvey Mtn. Lookout; Lassen National Forest, Halls Flat Quad. 1783 Comment
  RSA716273  Descurainia sophia L. Ahart, John Dittes 2005-6-2 11925 -A Lassen Along the road, near the Anderson Ranch home, Long Valley, about 4.75 miles (air) N of the intersection of Scott Road and Hwy 70, 6.2 miles (air) NW of Hallelujah Junction. 1460 Comment
  UCD114789  Descurainia sophia R. N. Raynor 1939-6-3 s.n. Lassen Susanville. Comment
  CHSC61163  Dicentra uniflora Vernon H. Oswald; Lowell Ahart 1993-5-12 5374 Lassen SW side of Hwy. 44, 0.9 mi NW of its intersection with A21 (to Westwood), at a large opening in forest. 1737 Comment
  POM109921  Dichelostemma multiflorum Marcus E. Jones 1897-6-26 s.n. Lassen Susanville. Perkin s Ranch. 1463 Comment
  CAS-BOT-BC292259  Dieteria canescens John Thomas Howell 1974-7-8 50470 Lassen Susanville 1295 Comment
  SJSU13913  Dieteria canescens N. A. Hopkins 1986-8-28 1382 Lassen along County Road 33 (Scott Road), Lower Long Valley, N of Highway 70 & E of the Beckwourth Pass Comment
  CAS-BOT-BC290958  Dieteria canescens var. shastensis John Thomas Howell 1934-7-6 12434 Lassen Harvey Valley Comment
  CHSC64867  Dieteria canescens var. shastensis Vernon H. Oswald 1995-6-26 6937 Lassen Modoc Plateau. Gravel pit on the e side of Ash Valley Rd. (Lassen 527) 0.2 mi n of Spooner Rd. in Ash Valley. 1542 Comment
  UC773957  Dieteria canescens var. shastensis L. R. Short 1936-6-25 S- 427 Lassen Burgess Spring Experiment Range Lassen National Forest, Burgess Spring Experiment Range 1859 Comment
  HSC103593  Dieteria canescens var. shastensis Thomas W. Nelson, Jane Nelson 1986-6-23 8140 Lassen Along State Route 44, 10.9 mi. SE of Old Station junction. 1585 Comment
  CAS-BOT-BC153671  Diplacus mephiticus G. Schoolcraft 1989-6-17 1909 Lassen Northwest slope of Shaffer Mtn. Comment
  CAS-BOT-BC153677  Diplacus mephiticus A. A. Heller; P. B. Kennedy 1907-7-1 8672 Lassen Near Old Chat Comment
  CAS-BOT-BC153683  Diplacus mephiticus Mike Vasey 1990-6-30 9050 Lassen Ash Valley, along primitive road south of junction of Ash Valley Road and Spooner Road. Modoc National Forest 1500 Comment
  CHSC36479  Diplacus mephiticus Margaret E. Halloran 1982-6-6 10 Lassen Pine Creek just below fish trap where Pine Creek empties into Eagle lake. Comment
  CHSC4812  Diplacus mephiticus R. Carter 1967-7-7 577 Lassen Collected outside dining hall, n side, 15 yds from building. 1524 Comment
  CHSC5907  Diplacus mephiticus R. Gein 1946-6-12 Lassen Pine Creek bridge. 1584 Comment
  SEINET13703366  Diplacus mephiticus F. B. Headley 1915-5-28 13 Lassen Honey Lake. Comment
  SEINET13703699  Diplacus mephiticus A. A. Heller, P. B. Kennedy 1907-7-1 8673 Lassen Near Old Chat. Comment
  CAS-BOT-BC151431  Diplacus nanus A. M. Vollmer; L. Beane 1953-7-1 104 Lassen Along Halls Flat Road, beginning 6 miles wet of Susanville to McArthur 1554 Comment
  OBI76920  Diplacus pygmaeus Anthony Baniaga 2011-7-9 435 Lassen Lassen Natl Forest. SW Pine Crk Valley. Pine Crk Valley quad. T31N R8E sec 10 NE of NE 1718 Comment
  CHSC91302  Distichlis spicata Lowell Ahart; John Dittes 2005-6-2 11922 Lassen Along the road, near the Anderson Ranch home, Long Valley, about 4 3/4 miles (air) north of the intersection of Scott Road and Highway 70, 6.2 miles (air) northwest of Hallelujah Junction. 1459 Comment
  RSA647537  Distichlis spicata Marion P. Harthill 1972-6-18 804 Lassen Litchfield. 1311 Comment
  SBBG115909  Distichlis spicata J. T. Howell 1973-7-10 49764 Lassen near Westwood 1554 Comment
  UC580711  Distichlis spicata E. Sawyer 1935-6-27 214 Lassen Long Valley 1310 Comment
  POM76750  Dodecatheon alpinum subsp. majus Marcus E. Jones 1897-6-30 s.n. Lassen Susanville, 4 miles below Eagle Lake. 1524 Comment
  UC773868  Dodecatheon conjugens L. R. Short 1936-4-28 S- 331 Lassen Burgess Spring Experiment Range , Burgess Spring Experiment Range (Lassen National Forest) 1767 Comment
  RSA59710  Dodecatheon conjugens E. K. Balls 1950-5-18 14766 Lassen Above Ash Creek Public Camp., off rd. from Adin to Madeline. 1616 Comment
  CHSC95386  Downingia bacigalupii H. Chappel; J. Goldhammer, K. Moran, K. Strassman 2002-7-9 ALT- 018 Lassen Ecoregion 4. Muck Valley (at top of mountain pass). 1386 Comment
  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
  RSA436116  Downingia bacigalupii Rockwell 1925-7-1 s.n. Lassen Eagle Lake Comment
  UC1523717  Downingia bacigalupii Gregg Riegel 1981-6-17 1150 Lassen 1280 Comment
  UCD55038  Downingia bacigalupii Gerald Dickinson 1963-7-3 73 Lassen U.S. Highway 299; 1 mile west of Bieber. 1249 Comment
  JEPS124625 Image available Downingia bacigalupii Laurel Loeblich 1964-7-1 65 Lassen Collected 17.6 mi. North of Susanville on Highway 1 in ditch on west side of road about 2 meters from road. Comment
  POM68157  Downingia bacigalupii Marcus E. Jones 1897-6-22 s.n. Lassen 10 miles south of Amedee. [Lassen or Plumas Co.] 1220 Comment
  RSA113687  Downingia bacigalupii H. K. Sharsmith 1955-6-27 4512 Lassen Adjacent to State Highway 299 near Fall River Mills, Lassen National Forest 1220 Comment
  JEPS58978  Downingia bicornuta var. bicornuta Wm. Anderson 1960-6-16 Lassen 0.25 mi s Mapes Ranch; Honey Lake Valley Comment
  UC1143175  Downingia bicornuta var. bicornuta Robert W. Gardner 1937-6-26 G- 24 Lassen Poison Lake Halls Flat Quad. 1706 Comment
  UC890609  Downingia bicornuta var. bicornuta Elmer I. Applegate 1929-6-24 5883 Lassen just n Bieber (nw corner of Lassen County) 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
  RSA128294  Downingia insignis P. H. Raven, Otto T. Solbrig 1958-6-17 13282 Lassen Along U.S. Hwy 395, 1.9 miles S of Ravendale. Comment
  UCD55103  Downingia insignis Gerald Dickinson 1963-7-3 72 Lassen U.S. Highway 299; 1 mile west of Bierber. 1249 Comment
  HSC63957  Downingia insignis Teresa Prendusi 1980-7-1 1124 Lassen Champs Flat, 8 mi. W of N Eagle Lake. 1677 Comment
  JEPS106977  Downingia insignis Lisa Schultheis 1995-6-27 226 -95 Lassen East side of 395, 1.6 miles south of Ravendale Comment
  CHSC65304  Downingia laeta Vernon H. Oswald; Lowell Ahart 1995-8-14 7199 Lassen Modoc Plateau. Horse Lake Rd. (Lassen 536) at a BLM reservoir 11.3 mi W of Hwy. 395, N of Susanville. 1737 Comment
  POM312373  Downingia laeta Malcolm A. Nobs, S. Galen Smith 1949-7-20 1047 Lassen Bieber, along Hwy 299 Comment
  CAS-BOT-BC41953  Draba albertina John Thomas Howell 1934-6-30 12132 Lassen Warner Mountains. Near Lost Lake. 2438 Comment
  JEPS94137  Draba verna Vernon H. Oswald and Lowell Ahart 1998-5-22 9128 Lassen ca. 5 mi. n.e. Doyle (rd. to summit of Fort Sage Mts., 2.7 mi. e. of Fort Sage Rd.); Fort Sage Mts. 1463 Comment
  UC1258491  Draba verna G. Schoolcraft 1980-4-8 202 Lassen along Shaffer Mountain Peak Road just w Highway 395; along Shaffer Mountain Peak Road 1402 Comment
  CHSC69125  Drosera anglica Vernon Oswald; Beth Corbin, Gary Schoolcraft 1997-8-5 8812 Lassen North slope of Robbers Creek at Robbers Spring, so ... Field redacted by CHSC, contact the data manager for more information 1798 Comment
  CAS-BOT-BC157796  Drymocallis lactea var. lactea John Thomas Howell 1934-6-14 12156 Lassen Near Lost Lake, Warner Mts. 2438 Comment
  CAS-BOT-BC159341  Drymocallis lactea var. lactea Marcus E. Jones 1897-6-28 s.n. Lassen Perkin's Ranch, Diamond Mt., Susanville 2133 Comment
  CHSC99982  Elaeagnus angustifolia L. P. Janeway 2008-8-2 9522 Lassen Modoc Plateau. Honey Lake Valley, 4.9 air km southeast of Standish, along Mapes Road 0.3 km east of Lambert Lane. 1222 Comment
  JEPS120897  Elatine Lowell Ahart, John Dittes, Todd Sloat 2013-6-8 18752 Lassen Near pond, about 80 yards N of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley. Comment
  JEPS123972  Elatine californica Lowell Ahart, John Dittes 2015-7-13 20300 Lassen Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. Comment
  JEPS28330  Eleocharis acicularis George W. Gillett 1957-7-29 952 Lassen Snag Lake, shoreline near the E inlet Lassen Volcanic National Park 1850 Comment
  JEPS120126  Eleocharis macrostachya Lowell Ahart, John Dittes 2012-7-9 18293 Lassen About 100 yards southeast of the tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. Comment
  CAS-BOT-BC112847  Eleocharis macrostachya Hans Leschke 1959-8-2 1588 Lassen Manzanita Lake 1781 Comment
  RSA127028  Eleocharis palustris Robert W. Gardner 1937-6-26 G- 26 Lassen Poison Lake 1707 Comment
  RSA252444  Eleocharis parishii Robert F. Thorne, C. W. Tilforth 1969-9-6 39258 Lassen along Long Valley Creek, c. 14 mi. SE of Milford. 1311 Comment
  CHSC96438  Eleocharis suksdorfiana Gordon Leppig 1998-7-13 968 Lassen Modoc National Forest. Blue Lake Ranch. 1970 Comment
  CAS-BOT-BC197349  Elymus Melissa A. Berry 1957-6-30 s.n. Lassen Highway 395 1280 Comment
  CAS-BOT-BC203831  Elymus X hansenii David D. Keck; J. Clausen 1935-6-24 3751 Lassen 2 mi. S. of Ravendale 1464 Comment
  UCD32663  Elymus X saundersii Beecher Crampton 1954-7-5 2061 Lassen Lassen County, 4.5 miles west of Susanville, along state highway 36. 1432 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-BC227491  Elymus elymoides G. Schoolcraft 1989-6-19 1917 Lassen Ash Valley RNA/ACEC Comment
  JEPS128414  Elymus elymoides Catherine Bauer with Ellen Bauer Benson 2017-8-16 20 Lassen South of Highway 44, North of Butte Lake, at Butte Creek Campground. Santa Clara Valley, National Forest Service, National Forest Campground. Comment
  CHSC7687  Elymus elymoides subsp. elymoides Beverley J. Wise 1969-5-23 136 Lassen 34.5 mi. S.E. of Susanville on Las. Co. Rd. 320. 1249 Comment
  UC1567377  Elymus elymoides subsp. elymoides G. Schoolcraft 1989-6-19 1917 Lassen Ash Valley RNA/ACEC 1554 Comment
  UC53733  Elymus elymoides subsp. elymoides J. Burtt Davy Jun 17 1897-Jun 24 1897 Lassen Amedee Honey Lake Valley Comment
  CDA31743  Elymus glaucus A. A. Beetle 1941-6-28 2803 Lassen Near Route 36, 10 miles west of Chester 0 Comment
  CAS-BOT-BC206731  Elymus glaucus subsp. glaucus John Thomas Howell 1976-7-19 51976 Lassen Gold Run Creek southwest of Susanville - Sierra Nevada 1386 Comment
  CAS-BOT-BC234092  Elymus multisetus Ira L. Wiggins; Dorothy B. Wiggins 1961-6-11 16343 Lassen Hillside 13.5 mi. E of Susanville Comment
  CAS-BOT-BC213802  Elymus repens John Thomas Howell 1973-7-10 49791 Lassen Ruderal in city park, Susanville - Sierra Nevada 1295 Comment
  CHSC112797  Elymus repens Lowell Ahart; John Dittes 2013-7-23 18894 Lassen About 20 feet southwest of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  JEPS119960  Elymus trachycaulus Lowell Ahart, John Dittes 2012-7-9 18297 Lassen Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. Comment
  UC1037126  Elymus trachycaulus Leo Whitney 3261 b Lassen Fruit Grower's Supply Co. Camp 10 Lassen National Forest (dry creek) Comment
  UC506972  Elymus trachycaulus George A. Fischer and Irwin H. Johnson 1933-7-12 F- 230 Lassen Patterson Flat Lassen <National> Forest 1737 Comment
  UCD62709  Elymus trachycaulus Beecher Crampton 1954-7-5 2058 Lassen Along Hwy. 36, 4.5 miles west of Susanville. Comment
  CHSC77262  Elymus trachycaulus subsp. trachycaulus G. Schoolcraft 1994-7-6 2444 Lassen About 2 miles west of Boot Lake. 2103 Comment
  UCD62671  Elymus trachycaulus subsp. trachycaulus August L. Hormay 1929-5-30 Lassen Forest Office in front of Susanville. Comment
  UC1220396  Elytrigia elongata T. C. Fuller 1963-7-15 10887 Lassen 2.9 mi se Pittville (s of road to Little Valley) Comment
  UC1924266  Elytrigia pontica subsp. pontica Debra Valov 2005-8-20 2005230 Lassen Bieber; off County A2 c. 12 km east of Hwy 299 1279 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
  SEINET11739305  Ephedra viridis M. Sacks, Detzer 1977-1 13 Lassen 4 km S of Hwy 395 1386 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
  CHSC106080  Epilobium brachycarpum Lowell Ahart; John Dittes 2010-7-31 17005 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
  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
  SEINET12539651  Epilobium brachycarpum C. G. Gulling 1905-1 s.n. Lassen Big Meadows. Comment
  UC1122562  Epilobium brachycarpum A. Simontacchi 1940-6-13 852 Lassen 3.3 mi wsw Patterson Mtn.; Lassen National Forest, Halls Flat Quadrangle Comment
  UC507002  Epilobium brachycarpum George A. Fischer and Irwin H. Johnson 1933-7-12 F 191 Lassen Dry Lake Lassen National Forest, Grass Valley 1694 Comment
  CHSC27715  Epilobium campestre Robert A. Schlising 1978-7-6 3310 Lassen Dry Lake, SE of Eagle Lake. 1645 Comment
  JEPS43851  Epilobium ciliatum subsp. ciliatum W. L. Jepson 1939-8-11 19378 Lassen Milford 1280 Comment
  UC1191714  Epilobium ciliatum subsp. ciliatum Verne Grant and Irving Schneider 1947-9-6 8388 Lassen irrigation ditch w Fleming Ranch headquarters (near Wendel) Comment
  CHSC106068  Epilobium densiflorum Lowell Ahart; John Dittes 2010-7-31 16994 Lassen Dry meadow on the bottom of a small wash, about 5 yards north of the large culvert, where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin. 1516 Comment
  NY1000270  Epilobium densiflorum G. Schoolcraft 1982-8-18 893 Lassen West of Doyle 1585 Comment
  UC1567379  Epilobium densiflorum G. Schoolcraft 1989-7-18 1984 Lassen s Clark's Valley Rd. (near Box Spring) 1813 Comment
  CHSC30611  Epilobium hallianum G. A. Brown 1975-7-7 1 Lassen Gallatin Peak, western slope. 1990 Comment
  CHSC63405  Epilobium hallianum Vernon H. Oswald; Beth Corbin, Michael Dolan 1994-6-18 6317 Lassen Cold Springs near Clarks Valley Rd. (Lassen 510) ca. 11 mi E of Madeline. In a meadow. 1871 Comment
  CHSC77220  Epilobium oregonense G. Schoolcraft 1993-7-20 2330 Lassen About 1 mile s. of Boot Lake. Along creek. 1950 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
  SEINET3271522 Image available Epilobium oregonense Marcus E. Jones 1897-6-30 Lassen 4 mi. below Eagle Lake 1524 Comment
  JEPS87409  Epilobium pallidum Vernon H. Oswald and Lowell Ahart 1993-7-8 5673 Lassen Halls Flat Rd (33N18) 1.4 mi ssw Pittville Rd (Lassen 111, 36N01) (ca 5.4 air mi nw of Poison Lake, bed of vernal pool on e side of rd) 1694 Comment
  SEINET194973  Epilobium pallidum A. A. Heller 1938-7-28 15295 Lassen Edge of swamp about mile east of Westwood 1524 Comment
  HSC95344  Epilobium palustre Gordon Leppig, Tony LaBanca, Leonel Arguello 1997-6-29 538 Lassen Modoc National Forest, Blue Lake Ranch 1970 Comment
  UC1523815  Epilobium torreyi Gary Schoolcraft 1981-6-9 439 Lassen s of Pittville 1249 Comment
  CHSC25739  Equisetum arvense John Steiner 1977-6-30 82 Lassen Along Hat Creek at the n end of Paradise Meadow. Lassen Volcanic National Park. 2134 Comment
  CAS-BOT-BC57302  Equisetum laevigatum John Thomas Howell 1975-7-23 51386 Lassen Susanville 1295 Comment
  CAS-BOT-BC57306  Equisetum laevigatum M. S. Taylor 1982-5-29 4566 Lassen the jct of Scott Rd and Long Valley Creek, ca. 0.5 mi w of Hwy 395, ca. 20 mi n of Reno Comment
  CHSC66369  Equisetum laevigatum Vernon H. Oswald; Lowell Ahart 1996-6-17 7820 Lassen Modoc Plateau. Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville. At the 6.0 mile post E of Devils Corral Trailhead. 1420 Comment
  JEPS114954  Equisetum laevigatum Lowell Ahart, John Dittes 2008-6-20 14933 Lassen On the levee road, where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber 1263 Comment
  SBBG115768  Eragrostis mexicana subsp. virescens J. T. Howell 1976-7-19 51943 Lassen Susanville 1296 Comment
  CAS-BOT-BC284059  Eragrostis pectinacea var. pectinacea John Thomas Howell 1975-7-23 51383 Lassen Susanville, Sierra Nevada 1295 Comment
  JEPS94837  Eragrostis pectinacea var. pectinacea Vernon H. Oswald and Lowell Ahart 1998-9-8 9578 Lassen Highway 299 at the Rail Road overpass on the e side of Nubieber Nubieber; , Highway 299 1255 Comment
  CAS-BOT-BC174119  Eremogone aculeata B. J. Hammerly 1941-6-20 50 Lassen 8 mi. S.-E. of Likely on Blue Lake road 1676 Comment
  CAS-BOT-BC159992  Eremothera boothii subsp. alyssoides G. L. Stage 1962-6-14 62 -131 Lassen 19 miles southeast of Ravendale Comment
  CHSC4897  Eriastrum signatum Bill Wilson 1967-7-4 51 Lassen Collected at Dean's Meadow, 6 mi S of Eagle Lake Biological Station. 4 mi. N of Susanville. 1950 Comment
  CHSC5009  Eriastrum signatum L. G. Bennett 1967-7-4 110 Lassen Deans Meadow, near Eagle Lake. 1706 Comment
  SEINET14595159  Eriastrum signatum M. J. Williams 1974-7-26 74 -L-27 Lassen S of Hwy 70, 2 miles W of Hallelujhah Junction. 1494 Comment
  UC1178959  Eriastrum signatum Herbert L. Mason 1957-7-5 14714 Lassen s Madeline; Madeline Plains Comment
  UC526132  Eriastrum signatum John Thomas Howell 1934-6-10 11840 Lassen near Plumas Junction Comment
  RSA0124144  Eriastrum signatum R. F. Thorne, C. W. Tilforth 1969-9-6 39264 Lassen C. 0.7 mi. SE of Milford, along Hwy. 395 (W. of Honey Lake). 1280 Comment
  UCD149881  Eriastrum wilcoxii William Anderson 1963-6-26 s.n. Lassen Honey Lake. Comment
  UC747139  Ericameria bloomeri G. Thomas Robbins 1945-10-7 2153 Lassen se slope of Harvey Mt. 2-3 mi ne Burgess Spring; Lassen National Forest, Harvey Valley 1828 Comment
  UCR57484  Ericameria bloomeri R. D. Goeden, Don W. Ricker 1989-8-24 32 Lassen Lassen National Forest, Black Gulch Road, c. 2 mi. west of Little Valley Road 1524 Comment
  CAS-BOT-BC287478  Ericameria greenei Ralph K. Gierisch 1968-7-11 3348 Lassen Harvey Valley, Lassen Forest 1676 Comment
  CAS-BOT-BC298179  Ericameria nauseosa var. oreophila John Thomas Howell 1924-8-13 s.n. Lassen Near Doyle Comment
  CHSC76085  Ericameria nauseosa var. oreophila Lowell Ahart; Vernon H. Oswald 1999-9-13 8220 Lassen Along road, about 100 yards southwest of the parking area, about 1 mile south of the sign in station, Honey Lake Wildlife Area, 5 1/2 miles (air) southeast of Standish. 1207 Comment
  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
  UC761846  Ericameria nauseosa var. oreophila R. F. Hoover 1940-9-28 4638 Lassen Leavitt Comment
  JEPS21495  Ericameria nauseosa var. speciosa R. F. Hoover 1940-9-27 4628 Lassen Susanville Comment
  UC1136974  Ericameria nauseosa var. speciosa L. R. Short 1936-9-14 S- 502 Lassen Burgess Spr. Exp. Range Lassen Forest 1761 Comment
  UC747216  Ericameria nauseosa var. speciosa G. Thomas Robbins 1945-10-7 2152 Lassen 2-3 mi ne of Burgess Spring (Harvey Valley, se slope of Harvey Mt.); Lassen National Forest, Harvey Mt. 1828 Comment
  CAS-BOT-BC299487  Ericameria nauseosa var. washoensis Gary Schoolcraft 1984-9-11 1375 Lassen Along Hwy. 395 about 1/2 mi. south of Ramhorn Campground Road 1615 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
  CHSC25084  Erigeron K. R. Stern 1967-6-24 2408 Lassen Murrer Meadow, Ca. 3 mi. SE of Eagle Lake Biological Station. 1554 Comment
  CHSC112184  Erigeron aphanactis var. congestus Dean Wm. Taylor 2012-6-7 21229 Lassen Flora of the Modoc Plateau. Grasshopper Valley; Grasshopper Valley Road 2.3 road miles E of junction with Highway 139. 1635 Comment
  CAS-BOT-BC33472  Erigeron barbellulatus Milo Samuel Baker; Franklin P. Nutting 1895-7-30 s.n. Lassen Silver Lake Comment
  JEPS94521  Erigeron bloomeri Vernon H. Oswald and Lowell Ahart 1997-5-27 8486 Lassen 38.2 mi n of Susanville (e side of Highway 139 at a small farm pond,, 7.4 mi n of Eagle Lake Road); Highway 139 1627 Comment
  CAS-BOT-BC294483  Erigeron bloomeri var. bloomeri L. P. Janeway 1990-7-4 3768 Lassen On knob ca 0.8 mi NE of Meadowview Peak 1981 Comment
  CAS-BOT-BC294490  Erigeron bloomeri var. bloomeri David D. Keck; J. Clausen 1935-6-24 3745 Lassen 2 mi. S. of Ravendale 1464 Comment
  CAS-BOT-BC294492  Erigeron bloomeri var. bloomeri John Thomas Howell 1934-6-10 11867 Lassen Honey Lake Valley, 37 miles s. of Susanville 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
  CHSC60815  Erigeron bloomeri var. bloomeri Vernon H. Oswald; Lowell Ahart 1993-6-28 5581 Lassen Harvey Valley Rd. (33N02), 1.2 mi N of Hwy 44, E side of Grays Valley, E of Poison Lake. 1731 Comment
  JEPS80680  Erigeron bloomeri var. bloomeri L. R. Heckard and T. I. Chuang 1981-6-10 5532 Lassen North Eagle Lake Campground Eagle Lake (nw corner of lake) 1524 Comment
  UC1523793  Erigeron bloomeri var. bloomeri Gary Schoolcraft 1981-6-3 603 Lassen w of Susanville (near Cheney Creek); Cheney Creek 1463 Comment
  UC1536892  Erigeron bloomeri var. bloomeri G. H. True Jr. 1936-6-25 531 Lassen Harvey Ranger Station Harvey Valley 1706 Comment
  UCR45383  Erigeron bloomeri var. bloomeri Thomas W. Nelson, Jane P. Nelson 1980-7-6 6034 Lassen Ash Valley, along branch road off Adin-Madeline Road just south of bridge over Ash Creek, & c. 16 mi. SE of Adin; 2.5 mi. SE of junction with main road 1555 Comment
  CAS-BOT-BC295979  Erigeron divergens Clare B. Hardham 1969-8-28 17421 Lassen West of Janesville, Sierra Nevada Comment
  CAS-BOT-BC296847  Erigeron divergens John Thomas Howell; Alice Eastwood 1940-6-16 8340 Lassen Janesville Comment
  JEPS41774  Erigeron divergens W. L. Jepson 1918-8-2 7778 Lassen Beckwith Pass 1463 Comment
  SEINET5708465 Image available Erigeron divergens Lowell E. Urbatsch, Vesna Karaman, Castro 2000-1 7708 Lassen Along CA 139. Willow Creek.; Willow Creek 1428 Comment
  UC1924238  Erigeron divergens Debra Valov 2004-6-8 2004246 Lassen Bieber; off County A2 c. 8 km east of Hwy 299 1271 Comment
  JEPS94485  Erigeron eatonii var. plantagineus Vernon H. Oswald and Lowell Ahart 1997-5-27 8520 Lassen 3.3 mi e of Highway 139 (n of Susanville on Forest Route 38N04 between Hwy 139 near Willow Creek Guard Station and Coyote Flat); Forest Route 38N04 1725 Comment
  UC1583978  Erigeron eatonii var. plantagineus G. Schoolcraft 1990-7-2 2098 Lassen Cold Spring Mtn.; lower slopes 1905 Comment
  UC1587058  Erigeron eatonii var. plantagineus G. Schoolcraft 1991-6-18 2162 Lassen along Hwy 139 4 mi w Said Valley Res. 1706 Comment
  UC1609229  Erigeron eatonii var. plantagineus Vernon H. Oswald and Lowell Ahart 1993-6-14 5505 Lassen Lassen A21 (32N02) 2.1 mi e Lassen 105 (32N28Y) (se side of valley, ca 8 air mi w of Eagle Lake); Pine Creek Valley 1728 Comment
  UC87584  Erigeron eatonii var. plantagineus T. S. Brandegee 1892-7-2 Lassen Susanville Comment
  CHSC112185  Erigeron elegantulus Dean Wm. Taylor 2012-6-7 21227 Lassen Modoc Plateau. Grass Valley; Grasshopper Valley Road 2.3 road miles E of junction with Highway 139. 1635 Comment
  UC584370  Erigeron elegantulus E. B. Babcock, G. L. Stebbins Jr. 1936-6-8 1787 Lassen roadside about 5 mi n Termo 1371 Comment
  CHSC105240  Erigeron filifolius var. filifolius Lowell Ahart; John Dittes 2010-7-31 17008 Lassen About 2,300 feet north of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin. 1510 Comment
  SBBG8113  Erigeron inornatus H. and M. Dearing 1938-7-1 2236 Lassen Susanville Comment
  CAS-BOT-BC295181  Erigeron inornatus John Thomas Howell 1974-7-10 50516 Lassen Janesville 1295 Comment
  JEPS109853  Erigeron inornatus var. calidipetris Dean W. Taylor 2006-6-29 19558 Lassen vicinity Long Lake; Highway 44 at the junction of County Road A21, southwest quadrant, near the junction with Forest Road 31N89 1737 Comment
  CHSC59077  Erigeron inornatus var. inornatus Vernon H. Oswald; Lowell Ahart 1992-8-25 5180 Lassen Lassen Volcanic National Park. Juniper Lake-Snag Lake Trail, ca. midway between Cameron Meadow and Snag Lake. 1935 Comment
  SEINET5708489 Image available Erigeron inornatus var. inornatus Lowell E. Urbatsch, Vesna Karaman, Castro 2000-1 7715 Lassen Grasshopper Valley. Collected along CA 139.; Grasshopper Valley 1586 Comment
  CHSC112190  Erigeron linearis Dean Wm. Taylor 2012-6-7 21231 Lassen Modoc Plateau. Grasshopper Valley; Grasshopper Valley Road 2.3 miles E of junction with Highway 139. 1635 Comment
  CHSC64839  Erigeron linearis Vernon H. Oswald 1995-6-26 6929 Lassen Modoc Plateau. Ash Valley Rd. (Lassen 527), 9.5 mi w of Madeline, on the s side of the reservoir at Fleming Sheep Camp. 1621 Comment
  HSC82189  Erigeron philadelphicus Thomas W. Nelson, Jane P. Nelson 1980-7-6 6038 Lassen Along Ash Creek at Ash Creek Campground 1494 Comment
  CHSC105241  Erigeron pumilus subsp. intermedius Lowell Ahart; John Dittes 2010-7-31 16986 Lassen About 3,330 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. 1520 Comment
  JEPS117505  Erigeron pumilus subsp. intermedius Lowell Ahart, John Dittes 2010-7-31 16986 Lassen About 3,330 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 1520 Comment
  CHSC72300  Erigeron pumilus var. intermedius L. P. Janeway; Glenn Clifton 1998-7-9 5727 Lassen Ridgetop saddle 1.0 mi east of Diamond Mtn. 2215 Comment
  CHSC86949  Erigeron pumilus var. intermedius L. P. Janeway 2001-6-19 7187 Lassen High Cascade Range. Southeast edge of Long Lake (which is dry) at west end of Long Valley; 6.4 km north-northwest of Harvey Mountain. 1640 Comment
  UC31450  Erigeron pumilus var. intermedius M. S. Baker and Frank Nutting 1894-7-6 Lassen Adobe Meadow Dixey Valley, Adobe meadow Comment
  CAS-BOT-BC300119  Erigeron pumilus var. intermedius Clare B. Hardham 1961-6-17 7504 Lassen Sierra Nevada Mountains. Baxter Creek 1676 Comment
  CAS-BOT-BC300121  Erigeron pumilus var. intermedius E. K. Balls 1950-5-22 14829 Lassen 1.5 mi. southeast of Milford, Hwy 395, above Honey Lake 1280 Comment
  UC762677  Eriogonum baileyi R. F. Hoover 1940-10-1 4649 Lassen Johnstonville Comment
  UCD99771  Eriogonum baileyi Margaret Williams; Steven Williams 1974-7-26 74- 4 - Lassen near Hallelujah Junction, west of Hwy 395 and south of Hwy 70. 1493 Comment
  CAS-BOT-BC241570  Eriogonum baileyi var. baileyi John Thomas Howell 1955-7-19 30817 Lassen East side of Beckwourth Pass 1493 Comment
  SEINET5328378  Eriogonum baileyi var. baileyi M. J. Williams 1974-7-26 74 -L-25 Lassen 2 mi. west of Hallelujah Junction, south of Hwy. 70. 1494 Comment
  NY242982  Eriogonum baileyi var. divaricatum R. F. Hoover 1940-10-5 4673 Lassen Pass between Shaffer Mountain and Warren Peak. Comment
  UCR92117  Eriogonum cernuum G. R. Ballmer 1993-7-31 s.n. Lassen Sandy flats along Fort Sage Rd., NE of Doyle, SE of Honey Lake, about 2-5 air mi west of Neveda border 1215 Comment
  SD232774  Eriogonum cernuum Greg R. Ballmer 1993-7-31 Lassen Sandy flats along Fort Sage Road, NE of Doyle, SE of Honey Lake, ca. 2 0 5 mi. (airline) W. of Nevada border Comment
  JEPS19795  Eriogonum collinum Rimo Bacigalupi with S. Galen Smith 1957-6-28 6009 Lassen ne along US Highway 395 Karlo (near headwaters of Secret Creek, n of Secret Valley and w of Rye Patch Canyon); Secret Creek 1615 Comment
  RSA236684  Eriogonum collinum A. J. Cronquist, A. H. Holmgren 1959-6-17 8478 Lassen 1 mile south of Ravendale, 40 miles NE of Susanville 1616 Comment
  SD86297  Eriogonum collinum James L. Reveal 1971-6-22 2463 Lassen Along U.S. Highway 395, 4.5 miles south of Ravendale, on a gravelly Artemisia flat. Comment
  UC1305745  Eriogonum collinum Noel H. Holmgren, James L. Reveal 1964-8-22 1723 Lassen 4 mi s Ravendale (48 mi ne of Susanville) Comment
  CHSC99120  Eriogonum douglasii var. meridionale Lowell Ahart; John Dittes 2008-6-19 14895 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
  SEINET210992  Eriogonum gracilipes Noel H. Holmgren, Barton L. Bethe 1970-6-25 4378 Lassen Northe end if Petersen Mountain, near U.S. 395, 8 miles north of junction with Calif. 70 (Hallelujah Junction). T 23N, R 18E. Sec 6. Comment
  RSA125289  Eriogonum maculatum Peter H. Raven, Otto T. Solbrig 1958-6-17 13271 Lassen Along U.S. Highway 395, 19.0 miles south of Ravendale. 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
  UC1949280  Eriogonum marifolium Barbara Ertter 1988-7-25 7862 Lassen ridge of Diamond Mts ca 1.5 mi E of Diamond Peak, ca 10 airmiles due S of Susanville Comment
  CDA22621  Eriogonum microthecum var. ambiguum L. Ahart 2003-8-17 10518 Lassen About 100 yards west of the cattle guard, on the southeast side of Smoke Creek Ranch Road, about 8 - 9 miles (air) northeast of Highway 395, about 30 miles (air) northeast of Susanville. Comment
  NY430485  Eriogonum microthecum var. ambiguum G. Schoolcraft 1999-7-28 2871 Lassen Ridge on east end of Skedaddle Mountains 2133.6 Comment
  CAS-BOT-BC268690  Eriogonum microthecum var. laxiflorum Clare B. Hardham 1971-8-22 18365 Lassen Diamond Mountain 2346 Comment
  NY281555  Eriogonum microthecum var. laxiflorum E. K. Balls 1952-10-10 18143 Lassen In Northern Juniper Woodland, 8 mi. s.e. of Ravendale, Hwy 395, between Susanville and Alturas. 1280.2 Comment
  SD64343  Eriogonum microthecum var. laxiflorum D. F. Howe 1966-8-24 Lassen 39 miles northeast of Litchfield on hwy #395 1676 Comment
  NY572524  Eriogonum microthecum var. schoolcraftii G. Schoolcraft 1982-7-20 807 Lassen Lower slopes of Wagner Canyon 1402.1 Comment
  NY803460  Eriogonum microthecum var. schoolcraftii G. Schoolcraft 2003-9-22 2948 Lassen West slopes of Fort Sage Mountains ca. 4 miles northeast of Doyle, CA - ne1/4 1696 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
  CAS-BOT-BC266364  Eriogonum nudum var. deductum Louella Bass 1973-6-14 EV 105 Lassen Elysian Valley 1325 Comment
  POM105409  Eriogonum nudum var. deductum Marcus E. Jones 1897-6-18 s.n. Lassen Chat. [also Chats, a former settlement] 1524 Comment
  RSA518444  Eriogonum nudum var. nudum George K. Helmkamp 1990-10-4 M- 4 Lassen South of Susanville in Plumas National Forest; north of Milford Pass. 1463 Comment
  SD13333  Eriogonum nudum var. nudum R. V. Chamberlain 1935-9-8 6584 Lassen Guernsey Creek Comment
  SEINET523088  Eriogonum nudum var. nudum Paul Opler 2002-6-22 Lassen Lauffman, W of Milfold. Comment
  SEINET14417488  Eriogonum nudum var. pubiflorum Robert L. Johnson, Mikel R. Stevens 2015-1 3925 Lassen 5.5 rd miles west of jct with Hwy 395 on Dawn Dr then rd to summit of Shaffer Mountain. Ca 16 air mi ene of downtown Susanville.; 0 1899 Comment
  UC1542952  Eriogonum nudum var. pubiflorum G. Schoolcraft 1987-9-9 1778 Lassen 3 mi n Bieber; Ash Creek Wildlife Area 1258 Comment
  OBI76967  Eriogonum nudum var. pubiflorum Anthony Baniaga 2011-8-3 484 Lassen Lassen Natl Forest. Along hwy 44, @ of 31N21. Pine Crk Valley quad T31N R8E sec 10 SE of SE 1800 Comment
  POM105327  Eriogonum ochrocephalum var. ochrocephalum Marcus E. Jones 1897-6-28 s.n. Lassen Diamond Mountain; Susanville; Perkin's Ranch. 1829 Comment
  HSC26580  Eriogonum ovalifolium var. purpureum D. H. Norris, Thomas W. Nelson, S. Dowty 1971-6-22 19303 Lassen Along Hwy. 395, 4 mi. E of Standish Comment
  UC6570  Eriogonum prociduum Mrs. R. M. Austin June, 1894 Lassen Willow Creek Valley Comment
  SEINET5331406  Eriogonum pusillum F. B. Headley 1915-5-31 s.n. Lassen Honey Lake. Comment
  RSA780054  Eriogonum pyrolifolium Elizabeth A. Kempton 2007-8-15 510 Lassen Lassen National Forest, Lassen Peak ca. 0.25 mile along trail from trailhead/parking lot. 2678 Comment
  CHSC92718  Eriogonum spergulinum var. reddingianum L. P. Janeway; B. Castro 2005-7-10 8483 Lassen Northern High Sierra Nevada. Crest of the Diamond Mountains overlooking Janesville and the north end of Honey Lake; 0.2 km north of Road 28N01 and 0.6 km east of junction of Janesville Grade Road (Road 208 and 28N02) and Road 28N01. Northerly-facing side of the crest. 1859 Comment
  UC1032335  Eriogonum spergulinum var. reddingianum A. Simontacchi 1940-6-5 811 Lassen 3.9 mi nw Cone Mt.; Lassen National Forest, Halls Flat Quadrangle Comment
  UC412800  Eriogonum spergulinum var. reddingianum Franklin P. Nutting Lassen Pine Creek Comment
  UC773863  Eriogonum spergulinum var. reddingianum L. R. Short and D. Gish 1936-6-2 S- 375 Lassen Burgess Spring Experiment Range Lassen National Forest, Burgess Spring Experiment Range 1798 Comment
  NY283102  Eriogonum sphaerocephalum G. Schoolcraft 1982-7-6 765 Lassen Fort Sage Mountains 1950.7 Comment
  CHSC86947  Eriogonum sphaerocephalum var. halimioides L. P. Janeway 2001-6-20 7190 Lassen High Cascade Range. South side of the junction of the '22' road and Road 34N41; about 5.6 km south of Dixie Valley and 8.9 km north of Harvey Mountain. 1560 Comment
  JEPS94611  Eriogonum sphaerocephalum var. halimioides Vernon H. Oswald and Lowell Ahart 1997-5-27 8491 Lassen e side of Hwy 139 at small farm pond 38.2 mi n Susanville (7.4 mi n of Eagle Lake Rd.) 1627 Comment
  UC1226260  Eriogonum sphaerocephalum var. halimioides Arthur Cronquist, Arthur H. Holmgren 1959-6-18 8482 Lassen 5 mi s Adin Comment
  UC1924212  Eriogonum sphaerocephalum var. halimioides Debra Valov 2004-6-9 2004271 Lassen Hwy 139 c. Mile marker 37 1650 Comment
  CAS-BOT-BC262733  Eriogonum sphaerocephalum var. sphaerocephalum John Thomas Howell 1934-6-10 11864 Lassen Honey Lake Valley, 37 miles s. of Susanville Comment
  RSA125406  Eriogonum sphaerocephalum var. sphaerocephalum Arthur R. Kruckeberg 1954-6-22 3323 Lassen Frequent on sagebrush antelope brush slopes betw Susanville and Jonesville on Hwy 395 Comment
  SEINET11261382  Eriogonum sphaerocephalum var. sphaerocephalum Robert L. Johnson, Mikel R. Stevens 2015-7-10 3921 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
  SEINET11261384  Eriogonum sphaerocephalum var. sphaerocephalum Noel H. Holmgren, Patricia K. Holmgren 1980-7-4 9499 Lassen Observation Peak, south side of mountain, 19 km (11.5 mi) airline distance east-southeast of Ravendale.; 0 1830 Comment
  NY283175  Eriogonum strictum subsp. proliferum W. W. Eggleston 1911-7-7 7173 Lassen Secret Valley 1330 Comment
  JEPS107833  Eriogonum strictum var. anserinum Lowell Ahart, John Dittes 2005-6-2 11984 Lassen North side of the poor dirt road, Long Valley, about 4 1/2 miles (air) northeast of the intersection of Scott Road and Highway 70, 5.8 miles (air) northwest of Hallelujah Junction 1430 Comment
  JEPS85787  Eriogonum strictum var. proliferum Roy E. Buck, Robert A. Price 1988-6-26 1028 Lassen on subsidiary peak ca. 0.5 air km n main summit (Fredonyer Peak; ca. 30 air km nne of Susanville); Fredonyer Peak 2377 Comment
  CAS-BOT-BC267890  Eriogonum umbellatum A. A. Heller 1938-6-23 15202 Lassen West of Susanville Comment
  SBBG1643  Eriogonum umbellatum H. and M. Dearing 1938-6-30 2235 Lassen 20 mi N of Susanville [Hwy 44] Comment
  CAS-BOT-BC267892  Eriogonum umbellatum Margaret M. Hanna 1956-6-3 s.n. Lassen Near Hiway 299, 62 mi. E. of Redding Comment
  CAS-BOT-BC267817  Eriogonum umbellatum var. covillei Annie M. Alexander; Louise Kellogg 1942-8-21 3356 Lassen Below Golden Trout Resort, Cottonwood Creek, Cottonwood Lakes, southwest of Lone Pine, Sierra Nevada Comment
  CHSC23499  Eriogonum umbellatum var. modocense Wayne O. Baum 1971-7-9 71 -81 Lassen N. slope of Gallatin Peak. 2072 Comment
  UC849718  Eriogonum umbellatum var. modocense A. A. Heller 1938-7-23 15190 Lassen 3 mi e Westwood Comment
  CAS-BOT-BC265091  Eriogonum umbellatum var. nevadense John Thomas Howell 1976-7-19 51951 Lassen Southwest of Susanville on Gold Run Road, Sierra Nevada 1341 Comment
  CAS-BOT-BC265097  Eriogonum umbellatum var. nevadense Louella Bass 1983-6-10 3 -83 Lassen About 3 miles east of Susanville, Center Road near Leavitt Lane, Sierra Nevada Comment
  CAS-BOT-BC265100  Eriogonum umbellatum var. nevadense A. A. Heller 1938-6-23 15215 Lassen Slope south of Ravendale on U.S. Highway #395 Comment
  CHSC64887  Eriogonum umbellatum var. nevadense Vernon H. Oswald; Lowell Ahart 1995-6-19 6888 Lassen Modoc Plateau. Between Litchfield and Ravendale on Smoke Creek Ranch Rd., 1.7 mi e of Hwy. 395. On the s side of the road at Mud Flat. 1350 Comment
  JEPS56240  Eriogonum umbellatum var. nevadense Hilda W. Grinnell 1928-6-26 Lassen inside crater-rim of Cinder Cone Lassen Volcanic National Park 2103 Comment
  NY399396  Eriogonum umbellatum var. nevadense A. A. Heller 1938-6-23 15215 Lassen Between Secret Valley and Ravendale. Upper Sonoran Life Zone 1524.0 Comment
  NY399398  Eriogonum umbellatum var. nevadense H. D. D. Ripley 1943-6-13 5713 Lassen South of Johnstonville 1325.9 Comment
  UC1137677  Eriogonum umbellatum var. nevadense L. R. Short and J. Warren 1936-6-12 S- 432 Lassen Burgess Spr. Exp. Range Lassen Forest, Burgess Spr. Exp. Range 1804 Comment
  UC85974  Eriogonum umbellatum var. nevadense T. S. Brandegee 1892-6-25 Lassen Honey Lake Comment
  POM253241  Eriogonum umbellatum var. polyanthum A. A. Heller 1938-6-23 15190 Lassen 3 mi. east of Westwood. Comment
  CAS-BOT-BC262365  Eriogonum vimineum Marcus E. Jones 1897-6-18 s.n. Lassen Chat 1524 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
  RSA780043  Eriogonum vimineum Elizabeth A. Kempton 2007-8-15 511 Lassen Janesville, intersection of 395 and Sunnyside road 973 Comment
  SEINET14417545  Eriogonum vimineum Robert L. Johnson, Mikel R. Stevens 2015-1 3924 Lassen 1.9 rd miles west of jct with Hwy 395 on Dawn Dr on E side of Shaffer Mountain. Ca 18 air mi ene of downtown Susanville.; South to southwest-facing slope. 1545 Comment
  UC1032093  Eriogonum vimineum E. Sawyer 1935-6-27 240 Lassen 3.5 mi ne Beckwith Pass; Sierraville Quadrangle Comment
  UC412790  Eriogonum vimineum Franklin P. Nutting Lassen Adobe flat on n side Dixey Mts. Dixey Mts. Comment
  UC634595  Eriogonum vimineum Dorothy Tebbe 1929-8-1 18 Lassen along highway 1/4 mi n Susanville Comment
  UCR102423  Eriogonum vimineum G. R. Ballmer 1988-7-21 s.n. Lassen Rest stop between Ravendale and Litchfield on Hwy 395 1657 Comment
  CAS-BOT-BC262358  Eriogonum vimineum M. S. Jussel 1931-9-6 s.n. Lassen On the road to Mt Lassen, five miles from Westwood 1828 Comment
  CAS-BOT-BC262366  Eriogonum vimineum David D. Keck 1930-7-23 951 Lassen Susanville 1280 Comment
  SD51226  Eriogonum vimineum D. F. Howe 1960-9-21 2994 Lassen 2 miles north of Janesville on #395 1280 Comment
  SEINET11933856  Eriogonum vimineum N. H. Holmgren, Holmgren, P. K. 1980-1 9493 Lassen Rye Patch Canyon Rd, 3.4 km (2.1m) E of US Hwy 395, 14.5 km (9mi) airline distance SE of Ravendale 1700 Comment
  CAS-BOT-BC261798  Eriogonum wrightii var. subscaposum Clare B. Hardham 1969-8-28 17450 Lassen Slope west of Janesville Comment
  RSA647563  Eriophyllum lanatum Marion P. Harthill 1972-6-17 810 Lassen Ravendale 1768 Comment
  CHSC92740  Eriophyllum lanatum var. achilleoides L. P. Janeway 2005-7-3 8453 Lassen High Cascade Range. Junction of Road 35N38 (road to Blacks Ridge Lookout Tower) and Road 22; 3.7 air km north-northwest of the lookout. 1536 Comment
  SEINET4208677  Eriophyllum lanatum var. achilleoides Noel H. Holmgren, Patricia K. Holmgren 1980-7-3 9490 Lassen Rye Patch Canyon Road, 3.4 km (2.1 mi) east of US Highway 395, 14.5 km (9 mi) airline distance southeast of Ravendale.; 0 1700 Comment
  UC1136991  Eriophyllum lanatum var. achilleoides L. R. Short and J. Warren 1936-6-29 S 459 Lassen Burgess Spr. Exp. Range Lassen Forest, Burgess Spr. Exp. Range 1822 Comment
  UC773893  Eriophyllum lanatum var. achilleoides L. R. Short and J. Warren 1936-6-29 S 459 Lassen Burgess Spr. Exp. Range Lassen Forest, Burgess Spr. Exp. Range 1822 Comment
  UC896366  Eriophyllum lanatum var. achilleoides A. A. Heller 1938-6-23 15197 Lassen on a ridge e Fredonyer Pass (on Highway #36) 1645 Comment
  JEPS29200  Eriophyllum lanatum var. integrifolium Lauramay T. Dempster 1961-6-17 1677 Lassen about 8 mi n of Karlo Road junction with Hwy. 395 1584 Comment
  CHSC112978  Eryngium alismifolium Lowell Ahart; John Dittes 2013-7-22 18879 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
  JEPS121272  Eryngium alismifolium Lowell Ahart, John Dittes 2013-7-22 18879 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
  POM83000  Eryngium alismifolium Marcus E. Jones 1897-6-24 s.n. Lassen 10 to 15 miles west from Amedee. 1219 Comment
  UC1088542  Eryngium alismifolium Ornduff 1958-7-22 5014 Lassen 6.6 mi. n. Ravendale (along Hwy. 395) Comment
  UC1487304  Eryngium alismifolium Yusuf Sheikh and Lincoln Constance 1973-6-27 549 Lassen 4.3 mi S of Ravendale (on State Highway 395) Comment
  UC1508836  Eryngium alismifolium Gary Schoolcraft 1984-7-31 1329 Lassen ca. 1 mi. n. Ravendale Fire Station 1615 Comment
  UC1745690  Eryngium alismifolium Annetta M. Carter 1945-9-30 1716 Lassen W side of Eagle Lake. About 3 mi. S of Spaldings where road crosses bridge over dry creek. Comment
  UC648306  Eryngium alismifolium John Thomas Howell 1934-7-10 12542 Lassen Patterson Flats Comment
  UCD18971  Eryngium alismifolium Raymond D. Ratliff 1965-8-4 39 Lassen Lassen National Forest, Harvey Valley Allotment (HV 78-73). 1706 Comment
  UC809839  Eryngium alismifolium G. L. Stebbins Jr. with P. Dansereau, C. McMillan, and K. Narayan 1949-8-5 4000 Lassen n.w. Susanville (Hog Flat); Hog Flat 1676 Comment
  CDA38323  Eryngium articulatum M. Pryor, E. E. Fix 1961-8-9 s.n. Lassen 1 mile north of Bieber. 0 Comment
  UC1533163  Erysimum capitatum G. Schoolcraft 1986-4-28 1529 Lassen lower w slopes Ft. Sage Mtns. 1432 Comment
  CHSC71082  Erysimum capitatum var. capitatum Vernon H. Oswald; Lowell Ahart 1998-5-22 9117 Lassen Road to ORV parking area in Fort Sage Mtns. 1.1 mi east of Fort Sage Rd., ca. 5 mi NNE of Doyle. 1447 Comment
  CHSC60405  Erythranthe breweri Mary Ann Showers 1992-6-12 2527 Lassen Lassen Volcanic National Park. Butte Lake. 1859 Comment
  CHSC5904  Erythranthe guttata M. West 1946-6-15 Lassen So. end Eagle Lake. 1584 Comment
  CHSC61240  Erythranthe guttata P. V. Caldwell 1972-6-23 244 Lassen Headwaters of Willow Creek, Upper Murer's Meadow, along creek bank. Eagle Lake. Comment
  SD7074  Erythranthe lewisii Mrs. R. M. Austin 1882-8-7 Lassen King's Valley 2133 Comment
  CAS-BOT-BC153611  Erythranthe moniliformis Clare B. Hardham 1971-8-22 18384 Lassen Diamond Mountain 2133 Comment
  CHSC66732  Erythranthe primuloides Vernon H. Oswald; Lowell Ahart 1996-8-1 8124 Lassen Forest Rd. 28N56 (D-Line) ca. 2 mi N of Dyer Mtn. Lookout, SSW of Westwood. 1737 Comment
  OBI76994  Erythranthe pulsiferae Anthony Baniaga 2011-6-30 403 Lassen Lassen Natl Forest. Fredonyer Pass quad T29N R10E sec 23 NE of SE 1526 Comment
  RSA234813  Erythranthe pulsiferae Francis W. Pennell 1940-6-10 25781 Lassen Northeast of West wood. 1646 Comment
  SEINET13754534 Image available Erythranthe pulsiferae C. L. Hitchcock 1940-1 6611 Lassen Lava beds ca. 12 miles north of Fall River Mills (Shasta Co.) on Fall River 1370 Comment
  RSA719891  Eschscholzia californica Michael A. Vincent, K. Levings 2006-7-29 12913 Lassen Along Rt. 395, ca. 6 miles SE of Johnstonville. Comment
  UC1561401  Eschscholzia californica Barbara Ertter 1987-7-24 7297 Lassen ca 3/4 mi ene Beckwourth Pass (at end of old crumbling paved road) 1524 Comment
  RSA149124  Eschscholzia californica var. crocea I. L. Wiggins, Dorothy B. Wiggins 1961-6-16 16531 Lassen Along Highway 299, overlooking Big Valley 1250 Comment
  RSA518978  Eucephalus breweri Barbara Ertter 1988-7-25 7865 Lassen ridge of Diamond Mtns, ca. 1.5 mi. E of Diamond Peak, ca. 10 air miles due S of Susanville. 2256 Comment
  CHSC45999  Euclidium syriacum June McCaskill 1966-6-5 712 Lassen Frosty Acres Ranch, at end of Albaugh Road, .6 mile west of its junction with Bassett Road (ca. 2 miles south of U.S. Highway 299 and 4 miles southwest of Adin). On and about driveways in front of house. 1280 Comment
  UCD114965  Euclidium syriacum June McCaskill 1966-6-5 712 Lassen Frosty Acres ranch, at end of Albaugh Road, 0.6 mile west of its junction with Bassett Road (ca. 2 miles south of U.S. Highway 299 and 4 miles southwest of Adin), northern part of county. 1280 Comment
  UC17636  Euphorbia crenulata M. S. Baker and Frank Nutting 1894-7-31 Lassen near Pine Creek 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
  JEPS124752 Image available Euphorbia serpillifolia Peter Schultz 1967-7-12 76 Lassen 14.9 miles southeast of Adin on state highway 139; 1/4 mile west of Willow Creek Campground. Comment
  CHSC64874  Euphorbia spathulata Vernon H. Oswald; Lowell Ahart 1995-6-19 6881 Lassen Modoc Plateau. Between Litchfield and Ravendale on Smoke Creek Ranch Rd., 0.3 mi e of Hwy. 395. 1383 Comment
  CDA20565  Euphorbia virgata C. Pirosko 2005-7-28 PDR 1303859 Lassen Modoc Plateau; Eagle Brothers Ranch, 20 mi S of Susanville off Hwy 395. 0 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
  SEINET8687854 Image available Euthamia occidentalis L. Kerr, A. Rossman, T. Sparer 2012-10-31 NV 030 -858 Lassen Head north on I-580/US 395 past Reno. Right onto Red Rock Road. Go for about one mile and park on right side of road. Hike about 300 feet west down to creek and collection area on irght side of road. 1362 Comment
  RSA0027354  Festuca John F. Emmel 1994-7-17 1329 Lassen Summit area of Observation Peak. 2378 Comment
  CAS-BOT-BC278431  Festuca idahoensis John Thomas Howell 1934-7-6 12448 Lassen Harvey Valley Comment
  CAS-BOT-BC278437  Festuca idahoensis John Thomas Howell 1934-7-6 12430 Lassen Hall's Flat Comment
  RSA0092308  Festuca idahoensis Jim M. Andre, Tasha La Doux, Senna Andre, Elias Andre 2013-7-12 31434 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
  RSA647539  Festuca idahoensis Marion P. Harthill 1972-6-17 822 Lassen Madeline. 1677 Comment
  UC1024811  Festuca idahoensis Leo Whitney 1935-6-17 3268 Lassen Camp 10, Fruit Grower's Supply Company Lassen National Forest Comment
  UC60788  Festuca idahoensis J. Burtt Davy Jun 17 1897-Jun 24 1897 Lassen Long Valley Honey Lake Valley Comment
  UCR183193  Festuca microstachys Jim Andre, G. L. Clifton 1993-5-28 7714 Lassen Along Hwy 395 c. 25 mi. NE of Susanville at Viewland exit, NE of Shaffer Mtn 1349 Comment
  OBI75881  Festuca myuros Anthony Baniaga 2011-6-30 406 Lassen Lassen Natl Forest. E of 29N03. Fredonyer Pass quad. T29N R10E sec 24 NW of NE 1460 Comment
  UC53432  Festuca pratensis M. S. Baker and Frank Nutting 1894-6-30 Lassen Big Valley Comment
Read comments
Jun 24 2009
  JEPS28299  Festuca rubra George W. Gillett 1957-7-29 947 Lassen between Butte Lake and Snag Lake; Lassen Volcanic National Park 1859 Comment
  SEINET191104 Image available Festuca rubra A. A. Beetle 1941-6-28 2801 Lassen 10 mi W of Chester 1524 Comment
  UC1142961  Festuca rubra A. L. Hormay 1941-6-26 27 Lassen Westwood Junction Lassen National Forest 1737 Comment
  UCD66336  Festuca rubra A. A. Beetle 1941-6-28 2801 Lassen 10 miles W of Chester. 1524 Comment
  CHSC65110  Floerkea proserpinacoides Vernon H. Oswald; Lowell Ahart 1995-7-24 7127 Lassen High Cascade Range. N of Lake Almanor and ca. 2 mi SE of Silver Lake on Forest Route 10, 0.8 mi SW of its jct. with Forest Road 30N21. 1920 Comment
  UC1523731  Fraxinus latifolia Gary Schoolcraft 1981-7-14 508 Lassen s of Pittville; Beaver Creek Area 1158 Comment
  UC1134589  Fritillaria atropurpurea K. E. Bradshaw 1939-3-27 232 Lassen s end of Black Mountain Experimental Forest, Lassen National Forest Black Mountain Experimental Forest; Lassen National Forest, Black Mountain Experimental Forest 1752 Comment
  SEINET8478847  Fritillaria lanceolata C. G. Gulling 1905-1 1536 Lassen Big Meadows. Comment
  CAS-BOT-BC508129  Fritillaria recurva Mrs. A S. Baldwin 1928-5-10 318 Lassen Coyote Flat. Over ridge from Dixie Valley Comment
  HSC75888  Galium aparine D. H. Norris, Thomas W. Nelson, S. Dowty 1971-6-22 19278 Lassen Along Hwy. 395, 4 mi. E of Standish Comment
  JEPS127170  Galium aparine Lowell Ahart, John Dittes 2016-7-15 21223 Lassen Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. Comment
  JEPS25525  Galium aparine Rimo Bacigalupi with Lincoln Constance 1959-7-16 7137 Lassen US Hwy 395 one fourth mi s junction of road to Smokey Creek (playa beside road) 1341 Comment
  RSA121072  Galium aparine L. R. Short, W. Gansberg 1936-6-2 S- 367 Lassen Lassen forest. MDM, Burgess Spr. Exp. Range. 1851 Comment
  POM68457  Galium mexicanum subsp. asperulum Marcus E. Jones 1897-6-25 s.n. Lassen Susanville. 1341 Comment
  POM69200  Galium mexicanum subsp. asperulum Marcus E. Jones 1897-6-25 s.n. Lassen Susanville. 1341 Comment
  UC1523797  Galium multiflorum Gary Schoolcraft 1982-6-22 747 B Lassen Ft. Sage Mtns. 1767 Comment
  OBI77063  Garrya fremontii Anthony Baniaga 2011-6-7 310 Lassen Lassen NF.. W of 34N60. Burney Mtn East quad. T34N r3E sec 35 SW of NE 1747 Comment
  CAS-BOT-BC478879  Gayophytum John Thomas Howell; Gordon H. True 1973-7-31 50035 Lassen On road from Janesville to Thompson Peak, Diamond Range 1737 Comment
  UCD55278  Gayophytum diffusum Ellen Dean 2006-5-15 3093 Lassen East of town of Susanville, along County Road A27 (Center Road). Private land north of California Correctional Facility owned by Virginia Johnston, to be purchased by state for expansion of alfalfa fields. 1245 Comment
  RSA719874  Gayophytum diffusum subsp. diffusum Michael A. Vincent, K. Levings 2006-7-29 12902 Lassen Along Rt. 36, 14.3 miles west of Susanville. Comment
  UC773934  Gayophytum humile L. R. Short and J. Warren 1936-6-23 S- 450 Lassen Burgess Spring Experiment Range Lassen National Forest 1761 Comment
  UC107796  Gayophytum racemosum T. S. Brandegee 1892-7-1 Lassen Susanville Comment
  NY999656  Gayophytum ramosissimum J. T. Howell 1974-7-8 50463 Lassen Susanville 1295 Comment
  NY999655  Gayophytum ramosissimum W. W. Eggleston 1910-9-3 6301 Lassen Vicinity of Doyle Station 1240 Comment
  SEINET10936377  Gayophytum ramosissimum David B. Dunn, Jeffrey Huber 1971-6-2 Dunn 17752 Lassen 3 mi s of hallelujah jct on us hwy 395 & calif 70; along roadside and in artemesia-grassland field. Comment
  RSA0004472  Gayophytum ramosissimum var. obtusum W. L. Jepson 1918-8-2 7755 Lassen Beckwith Pass 1463 Comment
  UC303061  Gentiana newberryi Pearl Safford Lassen Susanville [uncertain locality] Comment
  CHSC76758  Gentiana newberryi var. newberryi L. P. Janeway 1999-9-5 6576 Lassen High Cascade Range. Upper Pine Creek near Stephens Camp; northwest corner of Upper Stephens Meadow. 1900 Comment
  CHSC58499  Gentianopsis simplex Vernon H. Oswald 1992-7-3 5052 Lassen Lassen Volcanic Park. Grassy Creek on the S shore of Snag Lake. Along drainage on the upper strand of the lake. 1851 Comment
  CHSC77216  Geranium richardsonii Schoolcraft 1999-6-25 2840 Lassen SW of Lost Lake on SE slopes of Warner Mtns. 2225 Comment
  UC773888  Geranium viscosissimum L. R. Short and Wm. Gansberg 1936-6-12 S- 433 Lassen Burgess Spring Experiment Range Lassen Forest 1807 Comment
  CAS-BOT-BC459350  Geum aleppicum Marcus E. A M Jones 1897-6-30 s.n. Lassen Susanville, 4 miles below Eagle Lake. 1524 Comment
  RSA122288  Geum canescens L. R. Short, J. Warren 1936-6-23 s.n. Lassen Burgess Spring Exp Range. 1765 Comment
  UC72970  Geum macrophyllum Milo S. Baker 1894-7-12 Lassen Pine Creek Comment
  UC1037208  Geum macrophyllum var. perincisum Leo Whitney 1933-8-14 1568 Lassen 8 mi nw of Eagle Lake (Lassen National Forest, Slate Creek); Lassen National Forest, Slate Creek 1920 Comment
  UC1137768  Geum triflorum August L. Hormay 1934-7-2 Lassen Lassen National Forest, Black's Mountain Headquarters Black's Mountain Headquarters; Lassen National Forest, Black's Mountain Headquarters 1706 Comment
  UC1609243  Geum triflorum Vernon H. Oswald and Lowell Ahart 1993-6-28 5603 Lassen ne of Poison Lake (Road 35N04 at Aspen Well, n of Hwy 44 on the nw edge of Harvey Valley); Harvey Valley, Aspen Well 1725 Comment
  CAS-BOT-BC143567  Geum triflorum John Thomas Howell; Gordon H. True; Wayne Dakan 1974-7-30 50668 Lassen NE. of Diamond Mt. 2255 Comment
  SBBG70512  Geum triflorum var. ciliatum E. Rockwell -Jun-1925 934 Lassen Eagle Lake 1554 Comment
  RSA0086586  Gilia Bonnie C. Templeton 1938-4-15 s.n. Lassen Near Roscoe. Comment
  RSA470172  Gilia brecciarum Christopher Davidson 1975-6-7 2757 Lassen 1 mile E of Beckwourth Pass on Hwy 70. 1524 Comment
  UCD117609  Gilia brecciarum Grady L. Webster 1989-5-13 7706 Lassen 2.5 miles east of Beckworth Pass. 1493 Comment
  SEINET14644501  Gilia inconspicua F. L. H. 1915-5-28 s.n. Lassen Honey Lake. Comment
  SEINET14644567  Gilia inconspicua P. B. Kennedy 1901-6-10 s.n. Lassen Constantia, railroad station. Comment
  CHSC7766  Gilia modocensis Beverley J. Wise 1969-5-18 76 Lassen 16.8 mi. East of Susanville on Las. Co. Rd 216 off Las. Co. Rd. 215. 1371 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
  SD131882  Gilia salticola Barbara Ertter, Gary Schoolcraft 1987-6-16 7189 Lassen Skeedaddle Mountains on northeast side of Honey Lake, talus slopes at base of rimrock on south side of Hot Springs VABM 2286 Comment
  JEPS109641  Gilia sinistra subsp. sinistra Dean W. Taylor 2002-6-21 18171 Lassen Highway 139 ca. 10 miles N of Susanville, ca. 1 mile south of the southerly end of Willow Creek Valley 1524 Comment
  SBBG52268  Gilia sinuata C. Davidson 1975-6-7 2756 Lassen 1 mi E of Beckwourth Pass on Hwy 70 Comment
  SD135571  Gilia sinuata John Thomas Howell, Gordon H. True, Margaret Williams 1973-5-12 49156 Lassen Janesville, in cemetary. 1295 Comment
  CHSC64755  Glyptopleura marginata Vernon H. Oswald 1995-5-24 6782 Lassen Modoc Plateau. 1.8 mi s of Wendel Rd. (Lassen 320) on an unsigned dirt road 0.6 mi e of milepost 19.0, just e of Skedaddle Creek. On the east side of the road ca. 0.2 mi n of the railroad. 1219 Comment
  UC1483863  Glyptopleura marginata G. Schoolcraft 1980-5-9 232 A Lassen near state line s of High Rock Ranch 1219 Comment
  CHSC113079  Gnaphalium palustre Lowell Ahart; John Dittes 2013-7-22 18861 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
  UC1536868  Gnaphalium palustre G. H. True Jr. 1938-7-14 956 Lassen near Janesville 1280 Comment
  CHSC60922  Gratiola ebracteata Vernon H. Oswald; Lowell Ahart 1993-7-8 5650 Lassen Pittville Rd. (Lassen 111, 36N01) 1.9 mi N of Hwy. 44, on the SE edge of Poison Lake. 1709 Comment
  UC26770  Gratiola ebracteata M. S. Baker and Frank Nutting 1894-7-21 Lassen near Eagle Lake; near Eagle Lake 1524 Comment
  CHSC30600  Grayia spinosa L. J. Dawson 1975-7-7 41 Lassen Ca. 500 yd e of Horselake, playa lake. 1584 Comment
  CHSC36443  Grayia spinosa Theresa Costa 1982-6-2 24 Lassen Along Ravendale Rd ca. 10 yd e of Horse Lake. Comment
  CHSC36464  Grayia spinosa Jeffrey R. Peek 1982-6-1 25 Lassen Ca. 10 yds e of Ravendale Rd, e of Horse Lake. Comment
  UC1537382  Grayia spinosa Gordon H. True Jr. 1936-6-26 551 Lassen flats s.e. Standish; Honey Lake Valley 1219 Comment
  CHSC117540  Grindelia nana Lowell Ahart; John Dittes 2016-7-13 21197 Lassen Drying strand of the pond near the overflow, 30 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. 1289 Comment
  RSA170326  Gypsophila paniculata T. C. Fuller 1963-7-16 10923 Lassen Lassen County: N of Cemetery from which ti escaped, Janesville Comment
  CAS-BOT-BC231155  Hackelia cusickii Mrs. A S. Baldwin 1930-5-1 s.n. Lassen Coyote Creek lava bed Comment
  CAS-BOT-BC231156  Hackelia cusickii Mrs. A S. Baldwin 1928-5-1 s.n. Lassen Coyote Flat, over ridge from Dixie Village Comment
  CHSC63386  Hackelia cusickii Vernon H. Oswald; Beth Corbin, Michael Dolan 1994-6-18 6309 Lassen Blue Door Flat on Clarks Valley Rd. (Lassen 510) ca. 7 mi E of Madeline. 1767 Comment
  UC1035997  Hackelia cusickii Helen K. Sharsmith 1955-6-22 4496 Lassen 5 mi beyond Blue Lake (on road to Likely); Warner Mountains, Modoc National Forest 1767 Comment
  NY537530  Halogeton glomeratus T. H. Kearney 1951-8-20 28229 Lassen Honey Lake Valley near Herlong 1280.2 Comment
  OBI4720  Halogeton glomeratus T. C. Fuller 1962-8-28 9475 Lassen Herlong Siding, Hoeny Lake Valley Comment
  CAS-BOT-BC314764  Helianthella californica var. nevadensis A. M. Vollmer; L. Beane 1953-7-1 37 Lassen Along Halls Flat Road, beginning 6 miles west of Susanville to McArthur 1554 Comment
  JEPS94088  Helianthus bolanderi Vernon H. Oswald and Lowell Ahart 1998-9-8 9572 Lassen Hwy. 299 at R.R. overpass on e. side of Nubieber 1255 Comment
  SJSU14474  Helianthus cusickii W. D. Pitts 1990-5-29 299 Lassen by Hwy 395 between Madeline & Ravendale 1432 Comment
  UC32309  Helianthus cusickii M. S. Baker and Frank Nutting 1894-7-30 Lassen Silver Lake Comment
  CAS-BOT-BC305663  Helianthus cusickii Elmer I. Applegate 1934-5-4 8927 Lassen South of Secret Valley Comment
  JEPS94967  Hemizonella minima Vernon Oswald and Lowell Ahart 1997-6-24 8592 Lassen s of Susanville (1.2 mi e of Gold Run Road (29N10), on the n side of Diamond Mountain on Forest Road 29N43); Diamond Mountain, Forest Road 29N43 1685 Comment
  SJSU8133  Hemizonella minima J. W. Tilden 1960-6-27 1500 Lassen outskirts of Westwood at foot of Moonlight Rd 1524 Comment
  POM73736  Hesperochiron californicus Marcus E. Jones 1897-6-19 s.n. Lassen Chat. 1524 Comment
  UC1069087  Hesperochiron californicus A. Simontacchi 1940-5-17 740 Lassen 5.9 mi. s. Patterson Mt.; Lassen Nat'l Forest, Halls Flat Quad. Comment
  UC124518  Hesperochiron californicus T. S. Brandegee 1892-6-22 Lassen Honey Lake Comment
  UC1567384  Hesperochiron californicus G. Schoolcraft 1989-5-3 1866 Lassen s of Karlo (n end of Secret Valley); Secret Valley 1341 Comment
  UC73707  Hesperochiron californicus Milo S. Baker 1896-5-12 Lassen near Palmer's Comment
  SEINET5499822  Hesperochiron pumilus C. G. Gulling 1905-1 s.n. Lassen Big Meadows Comment
  CHSC66391  Hesperolinon micranthum Vernon H. Oswald; Lowell Ahart 1996-6-17 7796 Lassen Modoc Plateau. Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hy. 36 ca. 7 mi W of Susanville. 1420 Comment
  JEPS17743  Hesperolinon micranthum Rimo Bacigalupi with G. T. Robbins 1955-7-21 5416 Lassen along Smoke Creek Ranch Rd. 6 mi e jnct. with U.S. 395; Bull Flat, Deep Creek 1428 Comment
  JEPS27189  Hesperolinon micranthum Lauramay T. Dempster 1961-6-17 1682 Lassen Hwy 395 just w Tule Mountain 1645 Comment
  NY1002355  Hesperolinon micranthum J. T. Howell 1934-6-10 11887 Lassen 12 miles north of Susanville, on road to Horse Lake Comment
  RSA164418  Hesperolinon micranthum Clare B. Hardham 1961-6-16 7449 Lassen Gold Run Creek south of Susanville. Comment
  UC1094379  Hesperolinon micranthum R. C. Bacigalupi with S. Galen Smith 1957-6-28 5995 Lassen 6.0 mi n Madeline (on Highway 395) 1676 Comment
  SEINET1910062  Heterotheca villosa var. minor Barbara Ertter 1987-1 7302 Lassen Lassen Co.: ca 3/4 mi ENE of Beckwourth Pass at end of old crumbling paved road; meadow at head of streamlet in sagebrush zone. 1524 Comment
  POM36066  Hieracium albiflorum Marcus E. Jones 1897-6-25 s.n. Lassen Susanville. 1341 Comment
  UC1136853  Hieracium albiflorum L. R. Short and Wm. Gansberg 1936-7-3 S 411 Lassen Burgess Spr. Exp. Range Lassen National Forest 1847 Comment
  UC135018  Hieracium albiflorum T. S. Brandegee 1892-7-2 s. n. Lassen Susanville Comment
  CAS-BOT-BC312416  Hieracium albiflorum George W. Gillett 1957-7-24 895 Lassen Between Cameron Meadow and Snag Lake 1950 Comment
  CHSC5213  Hieracium horridum M. West 1946-7-12 Lassen Silver Lake. 1981 Comment
  CAS-BOT-BC318715  Hieracium horridum Wm. Bridge Cooke 1938-8-18 11492 Lassen Horse Camp slopes, Mount Shasta 2514 Comment
  CAS-BOT-BC318716  Hieracium horridum Alice Eastwood 1912-9-1 2056 Lassen Mount Shasta Comment
  SEINET11262512  Hieracium nudicaule Robert L. Johnson, Mikel R. Stevens 2015-7-10 3938 Lassen Southern Cascade Range. North side of Westwood 0.3 rd mi west of jct with Mooney Rd on CA-36. N side of rd.; 0 1564 Comment
  JEPS97327  Hieracium scouleri Vernon H. Oswald 1995-8-21 7206 Lassen T38N R15E NE1/4 Sec. 20, 6100 ft, Warner Mtns., Yellow Pine Forest. Blue Lake located ca. 13 mi SE of Likely 1859 Comment
  JEPS105682  Hieracium scouleri L. P. Janeway 2001-6-20 7196 Lassen along 22 Road about 1.8 km W of Black Hole, about 11.9 km N-NE of Harvey Mountain 460 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
  JEPS97329  Hippuris vulgaris Vernon H. Oswald 1995-8-21 7211 Lassen T38N R15E SE1/4 Sec. 20, 6100 ft, Warner Mtns., Fresh-water Marsh in Yellow Pine Forest. Blue Lake located ca. 13 mi SE of Likely 1859 Comment
  HSC13458  Hippuris vulgaris Fred J. Kindel 1955-6-27 Lassen Mt. Meadows Reservoir. Comment
  CAS-BOT-BC150128  Holodiscus microphyllus var. glabrescens P. Monnet 1913-7-4 802 Lassen Hot Springs Peak Comment
  JEPS93830  Holosteum umbellatum subsp. umbellatum Vernon H. Oswald and Lowell Ahart 1998-6-4 9140 Lassen s of Constantia (Red Rock Road at its junction with Hwy 395); Red Rock Road at its junction with Hwy 395 1365 Comment
  CHSC41842  Hordeum brachyantherum subsp. brachyantherum P. V. Caldwell 1972-7-12 273 Lassen 300 meters from Eagle Lake on Papoose Creek. Comment
  CAS-BOT-BC284714  Hordeum jubatum John Thomas Howell; Gordon H. True 1973-8-1 50198 Lassen Ca. 3 miles se. of Diamond Mt., summit of Diamond Range south of Susanville 2194 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
  UCD85742  Hordeum jubatum Gerald Dickinson 1963-7-15 99 Lassen Ravenville. US Hwy 395. 1618 Comment
  CHSC117517  Hordeum marinum subsp. gussoneanum Lowell Ahart; John Dittes 2016-7-13 21147 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. 1289 Comment
  UCD85868  Hordeum marinum subsp. gussoneanum John Thomas Howell 1974-7-10 50533 a Lassen Sierra Nevada. Elysian Valley. 1325 Comment
  CHSC99287  Hordeum murinum subsp. leporinum Lowell Ahart; John Dittes 2008-6-20 14915 Lassen On the levee road, where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. 1263 Comment
  JEPS44570  Horkelia fusca subsp. tenella Brown & Wieslander 1922-7-23 30 Lassen Martin Sprs., Eagle Lake Comment
  POM34906  Horkelia fusca var. brownii Marcus E. Jones 1897-6-19 s.n. Lassen Chat. 1524 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
  JEPS74735  Horkelia tridentata subsp. flavescens G. S. Crew and C. S. Robinson 1927-6-25 24 Lassen near Wetwood Junction; Lassen Forest, Norval Flat 1442 Comment
  CAS-BOT-BC55477  Hornungia procumbens Arnold Tiehm; Margaret Williams; Gary Schoolcraft 1986-5-12 10350 Lassen 1 road mile west of the state line on the dirt road from highway 395 to Smoke Creek, south side of Rush Creek. 1341 Comment
  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
  CDA40307  Hydrophyllum capitatum var. alpinum T. C. Fuller 1963-6-1 10639 Lassen 0.25 mile north of Willow Springs Campground, 3.1 miles southeast of Pittville-Susanville Road, 12.4 miles (road) south of Pittville. 0 Comment
  CHSC5266  Hypericum formosum var. scouleri J. Wolf 1946-6-20 Lassen Eagle Lake, Grasshopper Valley. 1624 Comment
  SD130459  Hypericum formosum var. scouleri John Thomas Howell, Gordon H. True and Margaret Williams 1973-6-28 49436 Lassen Elysian Valley, west of Janesville. 1326 Comment
  CAS-BOT-BC401309  Hypericum scouleri John Thomas Howell; Gordon H. True; Margaret Williams 1973-6-28 49436 Lassen Elysian Valley, west of Janesville 1325 Comment
  SEINET5344266  Hypericum scouleri C. G. Gulling 1905-1 s.n. Lassen Big Meadows Comment
  SJSU10961  Hypericum scouleri H. L. Buckalew 1961-7-10 Lassen Blue L Comment
  UC117500  Idahoa scapigera T. S. Brandegee 1892-6-30 Lassen Susanville 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
  CHSC81032  Iliamna bakeri Vernon H. Oswald 2001-7-14 10050 Lassen Hwy 139 at the 11 mile post between Susanville and Eagle Lake. 1706 Comment
  SDSU7494  Iliamna bakeri D. F. Howe 1964-8-2 3924 Lassen Hillside above Parsnip Creek, Warner Mts., Modoc National Forest 1829 Comment
  HSC63937  Ipomopsis aggregata Teresa Prendusi 1980-7-21 Lassen Fredonyer Peak. alongside rd. to lookout 2317 Comment
  JEPS816  Ipomopsis aggregata Jos. Grinnell 1928-6-26 Lassen Butte Lake 1889 Comment
  HSC69077  Ipomopsis aggregata Gary Schoolcraft 1979-7-12 145 Lassen NW side of Shinu Peaks 2134 Comment
  UC1483837  Ipomopsis aggregata subsp. bridgesii G. Schoolcraft 1980-7-29 341 Lassen Widow Peak, Bureau of Land Management 1584 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
  UCR183236  Ipomopsis depressa Jim Andre, G. L. Clifton 1993-6-2 7719 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
  CHSC107328  Iris hartwegii subsp. hartwegii Lowell Ahart; John Dittes 2011-6-21 17524 -A Lassen 335 feet northwest of Big Valley Canal, 2.1 miles (air) south of County Road 87, 6.6 miles (air) northeast of Bieber, 7.9 miles (air) west by southwest of Adin, Big Valley. 1264 Comment
  CHSC111244  Iris missouriensis B. Castro; L. P. Janeway 2012-7-2 1936 Lassen Modoc Plateau. 32 air mi due E of Susanville, 12 mi E of Hwy 395 and 3 mi W of the NV border. East side of Skedaddle Moun-tains; large meadows along Skedaddle Creek, just upstream from 'Skedaddle Ranch. 1604 Comment
  CHSC66228  Isoetes nuttallii Vernon H. Oswald; Lowell Ahart 1996-6-24 7848 Lassen Modoc Plateau. Papoose Meadows located ca. 0.5 mi E of Eagel Lake Rd. (A1) and 2.5 mi S of Eagle Lake. 1633 Comment
  RSA0025413  Isoetes nuttallii Forrest Freund 2013-5-23 194 Lassen HWY 44. Near pond on the south west side of the road, in open patches. 1716 Comment
  UC2062875  Isoetes nuttallii Forrest Freund 2016-5-18 256 Lassen Side of Highway 44. Comment
  CAS-BOT-BC324777  Iva axillaris John Thomas Howell 1975-7-23 51394 Lassen Susanville, Sierra Nevada 1295 Comment
  UC1037332  Iva axillaris subsp. robustior Leo Whitney 1934-9-5 1958 Lassen Fredonyer Pass; Lassen National Park 1676 Comment
  UC177069  Iva axillaris subsp. robustior T. S. Brandegee 1892-6-25 Lassen Honey Lake Honey Lake Comment
  RSA0011495  Iva axillaris subsp. robustior R. F. Thorne, Larry E. DeBuhr 1975-8-22 46970 Lassen Along Highway 395 ca. 6 miles north of Madeline and 4.5 miles south of Modoc county line. 1616 Comment
  NY833699  Ivesia baileyi G. Schoolcraft s.n. Lassen In Wendel Canyon 1585 Comment
  CHSC57121  Ivesia paniculata Mary Meyer 1980-7-1 Lassen Ash Valley. 1402 Comment
Read comments
Jan 15 2009
  RSA0005626  Ivesia paniculata Thomas W. Nelson, J. P. Nelson 1980-7-6 5984 Lassen Ash Valley along Adin-Madeline Rd. 16 miles east of Adin. 1555 Comment
  CAS-BOT-BC109935  Juncus John Thomas Howell 1976-7-19 51988 Lassen Sierra Nevada. On Gold Creek southwest of Susanville. 1386 Comment
  UC1100949  Juncus balticus Verne Grant and Irving Schneider 1947-7-31 8211 Lassen ne quarter of George Williams section 19 Madeline Plain Comment
  SEINET3877676  Juncus bufonius Noel H. Holmgren, Patricia K. Holmgren 1980-7-3 9467 Lassen Madeline Plains, along U.S. Highway 395, 5.6 km (3.5 mi) south of Madeline.; 0 1620 Comment
  UC1567409  Juncus bufonius G. Schoolcraft 1989-7-18 1981 Lassen near Bucks Spring (s of Clarks Valley Road) 1874 Comment
  SEINET11787326  Juncus bufonius A. Tiehm, Nachlinger, J.; Schoolcraft, G. 1984-1 8824 Lassen Rodeo Flat, 2.7 road mi W of state line on Buckhorn road from Ravendale to Hwy 81 1829 Comment
  UC1136937  Juncus confusus L. R. Short and J. Warren 1936-6-10 S- 418 Lassen Burgess Spr. Exp. Range Lassen Forest 1856 Comment
  CHSC66416  Juncus dudleyi Vernon H. Oswald; Lowell Ahart 1996-6-17 7817 Lassen Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville. Modoc Plateau. On the edge of a marshy pool at the 6.0 mile post E of Devils Corral Trailhead. 1420 Comment
  RSA325011  Juncus luciensis A. Tiehm, Jan Nachlinger 1984-6-25 8824 Lassen Rodeo Flat, 2.7 miles west of the state line on Buckhorn road from Ravendale to Hwy 81 1829 Comment
  CHSC5268  Juncus nevadensis 1944-7-26 Lassen Eagle Lake. Juniper Lake. 2055 Comment
  JEPS67038  Juncus nevadensis Brown and Wieslander 1922-7-23 77 Lassen Martin Springs Eagle Lake Comment
  JEPS87450  Juncus nevadensis Vernon H. Oswald and Lowell Ahart 1993-8-3 5745 Lassen ca. 13 (air) mi. n. Lake Almanor (s.w. edge of Cooper Swamp located e. of Silver Lake just e. of Caribou Wilderness); Cooper Swamp 1932 Comment
  UC1601782  Juncus nevadensis J. Burtt Davy Jun 17 1897-Jun 24 1897 3279 Lassen Tule Confederacy Honey Lake Valley Comment
  UC1609497  Juncus nevadensis Vernon H. Oswald and Lowell Ahart 1993-8-3 5745 Lassen ca. 13 (air) mi. n. Lake Almanor (s.w. edge of Cooper Swamp located e. of Silver Lake just e. of Caribou Wilderness); Cooper Swamp 1932 Comment
  RSA647524  Juncus nevadensis Marion P. Harthill 1974-6-14 1518 Lassen Madeline. 152 Comment
  CHSC60461  Juncus orthophyllus Mary Ann Showers 1992-6-13 2537 Lassen Lassen Volcanic National Park. Meadow along trail from Snag Lake jct to Widow Lake. 1828 Comment
  CAS-BOT-BC279914  Juncus trilocularis Barbara L. Wilson; P. Zika 2011-8-7 16807 Lassen Highway 44 near mile post 12.50, at junction with road 32N22 and road to Harvey Valley 1740 Comment
  HSC101239  Juncus trilocularis Peter Zika 2008-7-14 23893 Lassen South side of Route 44, SE end of Grays Valley near Lodgepole 1730 Comment
  UCR263355  Juncus trilocularis Peter F. Zika 2008-7-14 23893 Lassen Cascade Range Highlands, south side of Route 44, southeast end of Grays Valley near Lodgepole 1730 Comment
  CHSC13798  Juniperus occidentalis Cathy Crittenden 1970-7-8 26 Lassen About 300 yds. From five corners on road to Mahogany Lake. 1767 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
  UC1134311  Juniperus occidentalis C. G. Albertus 1935-11-1 294 Lassen 2.1 mi ene Chats; Sierraville Quad. 1569 Comment
  UC773866  Juniperus occidentalis L. R. Short 1936-9-30 S- 508 Lassen Burgess Spring Experiment Range Lassen Forest, Burgess Spring Experiment Range 1828 Comment
  UCD133775  Juniperus occidentalis John Thomas Howell; Gordon H. True 1973-8-1 50252 Lassen 5 miles from Susanville; dry hills on Gold Run Creek. 1310 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
  RSA647569  Juniperus occidentalis var. occidentalis Marion P. Harthill 1972-6-17 812 Lassen Ravendale 1768 Comment
  UCR4289  Juniperus occidentalis var. occidentalis Frank C. Vasek 1965-8-31 650831- 05 Lassen c. 45 mi north of Susanville 1662 Comment
  CHSC6262  Kelloggia galioides W. Vinyard 1946-6-17 Lassen Eagle Lake. Mt. Fredonyer. 2133 Comment
  HSC63934  Kelloggia galioides Teresa Prendusi 1980-7-21 Lassen Fredonyer Peak 2195 Comment
  JEPS12481  Kelloggia galioides Brown and Wieslander 1922-7-18 53 Lassen near Susanville (Martins Springs); Martins Springs Comment
  UC1483844  Koeleria macrantha G. Schoolcraft 1980-7-28 335 Lassen e side Tule Mountain; e side of Tule Mtn. 2042 Comment
  UC163604  Koeleria macrantha Milo S. Baker Lassen flat near Eagle Lake; flat near Eagle Lake Comment
  CAS-BOT-BC271328  Koeleria pyramidata Gary Schoolcraft 1983-6-29 1042 Lassen Along Hwy 139 near Upper McBride Sp. 1889 Comment
  OBI75889  Kyhosia bolanderi Anthony Baniaga 2011-8-16 499 Lassen Lassen Natl Forest. Along F.S. 10, ca. 1 mi NE of Cummings Spring. Red Cinder quad. T30N R8E sec 7SE of SW 1920 Comment
  UCR67465  Lactuca saligna George K. Helmkamp 1990-9-23 G- 13 Lassen north of Ravendale 1677 Comment
  CAS-BOT-BC341484  Lagophylla ramosissima John Thomas Howell 1934-6-10 11863 Lassen Honey Lake Valley, 37 miles s. of Susanville Comment
  CHSC66374  Lagophylla ramosissima subsp. ramosissima Vernon H. Oswald; Lowell Ahart 1996-6-17 7782 Lassen Modoc Plateau. Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville. Along the trail at the 7 mile post on the N side of Hwy. 36 between the trail and highway bridges spanning the Susan River. 1432 Comment
  RSA0036999  Lamium amplexicaule Lowell A. Ahart, John Dittes 2008-6-20 14962 Lassen About 30 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. 1263 Comment
  CHSC99283  Lasthenia glaberrima Lowell Ahart; John Dittes 2008-6-22 15041 Lassen About 20 yards west of the road levee, along a small natural drainage, open meadow area, in Big Valley, about 2.1miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 5 miles (air) northeast of Bieber. 1262 Comment
  JEPS114637  Lasthenia glaberrima Lowell Ahart, John Dittes 2008-6-20 14901 Lassen Sides of a vernal pool, about 100 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber 1263 Comment
  CHSC5215  Layia glandulosa 1944-6-28 Lassen Eagle Lake. 1584 Comment
  JEPS94833  Layia glandulosa Vernon H. Oswald and Lowell Ahart 1998-5-22 9109 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
  JEPS89219  Lemna minuscula Mrs. R. M. Austin June, 1894 Lassen Cold Springs, Willow Creek Valley Willow Creek Valley; North East California, Cold Springs, Willow Creek Valley Comment
  CAS-BOT-BC88819  Lepidium campestre John Thomas Howell; Gordon H. True; Margaret Williams 1973-5-12 49226 Lassen Sierra Nevada. Elysian Valley northwest of Janesville. 1325 Comment
  CAS-BOT-BC88821  Lepidium campestre Louella Bass 1974-5-23 EV 143 Lassen Sierra Nevada. Elysian Valley. 1325 Comment
  CHSC112998  Lepidium campestre Lowell Ahart; John Dittes 2013-7-23 18886 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
  HSC68797  Lepidium dictyotum Gary Schoolcraft 1980-5-7 221 Lassen Honey Lake Island, N shore 1220 Comment
  CAS-BOT-BC89719  Lepidium latifolium John Thomas Howell 1975-7-23 51384 Lassen Sierra Nevada. Eagle Lake Cucumber Company yard. Susanville. 1295 Comment
  NY628139  Lepidium latifolium M. D. Windham 2001-6-22 2475 Lassen Northwest of Wendel in Honey Lake Valley near base of Skedaddle Mountains ca. 10.77 km WSW of the summit (7654) of Hot Springs Peak. 1231.4 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
  UCD149893  Lepidium perfoliatum V. S. 1971-5-11 s.n. Lassen Honey Lake Wildlife Management Area, field 1. Comment
  RSA172478  Leptosiphon bolanderi Franklin P. Nutting 1894-7-2 s.n. Lassen Dixey Mts. Comment
  CHSC68896  Leptosiphon ciliatus Vernon Oswald; Lowell Ahart 1997-6-24 8605 .1 Lassen South of Susanville on the north side of Diamond Mtn. at a stream on Forest Rd. 29N43, 3.5 miles east of Gold Run Rd. (29N10). 1655 Comment
  CHSC92716  Leptosiphon ciliatus L. P. Janeway; B. Castro 2005-7-10 8480 Lassen Northern High Sierra Nevada. Crest of the Diamond Mountains overlooking Janesville and the north end of Honey Lake; 0.2 km north of Road 28N01 and 0.6 km east of junction of Janesville Grade Road (Road 208 and 28N02) and Road 28N01. Northerly-facing side of the crest. 1859 Comment
  RSA713121  Leptosiphon ciliatus L. P. Janeway, B. Castro 2005-7-10 8480 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
  CHSC25901  Leptosiphon harknessii K. R. Stern 1967-6-24 2427 Lassen Murrer Meadow Road, ca. 3 mi. E of Eagle Lake Biological Station. 1554 Comment
  GMDRC6950  Leptosiphon harknessii J. M. Andre, T. La Doux, Senna & Elias Andre 2013-7-12 31424 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
  CHSC7659  Leucocrinum montanum Beverley J. Wise 1969-4-10 Lassen 4 mi. south of Susanville on Las. Co. Rd. 204. 1310 Comment
  JEPS87460  Leucocrinum montanum Vernon H. Oswald and Lowell Ahart 1993-5-12 5375 Lassen Hwy 44 1.6 mi n.w. of its intersection with A21 (to Westwood) (ne side of Hwy 44) 1737 Comment
  UCR201583  Leucocrinum montanum Ken Osborne 2005-4-23 s.n. Lassen 3 miles SE of Honey Lake, 0.5 mile west of Turtle Mountain 1276 Comment
  CAS-BOT-BC508369  Leucocrinum montanum Louella Bass 1973-4-29 31 Lassen Elysian Valley, Sierra Nevada 1325 Comment
  HSC38587  Leucocrinum montanum J. P. Smith, J. O. Sawyer 1971-5-23 Lassen 3 mi. N of junction of Hwy. 139 and turnoff to Thermo Comment
  OBI83366  Leucocrinum montanum Rhonda Riggins 1989-4-27 1650 Lassen US 395, 1.1 mi N Madeline, 8.8 mi S Modoc Co line 1676 Comment
  HSC75895  Lewisia nevadensis D. H. Norris, S. Dowty, Thomas W. Nelson 1971-6-22 19194 Lassen Harvey Valley near Cone Springs Comment
  UC614395  Lewisia nevadensis L. Constance 1938-6-11 2326 Lassen 5 mi sw Susanville 1371 Comment
  CAS-BOT-BC444493  Lewisia triphylla George W. Gillett 1957-7-21 863 Lassen Lassen Volcanic National Park. Juniper Lake - Cameron Meadow trail 2118 Comment
  CDA7155  Leymus cinereus G. Schoolcraft 1993-9-18 s.n. Lassen 1 mile N of Sagehen on W side of Hwy 395. Comment
  UC1924193  Leymus cinereus Debra Valov 2005-8-20 2005237 Lassen Bieber; off County A2 c. 8 km east of Hwy 299 1279 Comment
  CAS-BOT-BC274465  Leymus triticoides Louella Bass 1980-8-3 s.n. Lassen Standish Comment
  RSA299171  Leymus triticoides J. T. Howell 1974-7-9 50467 Lassen Susanville 1296 Comment
  UCD86642  Leymus triticoides J. Earl Coke 1931-6-1 s.n. Lassen Lassen County. 1524 Comment
  UC1100164  Lilaea scilloides Malcolm A. Nobs and S. Galen Smith 1949-7-20 1048 Lassen Bieber; along Highway 299 Comment
  HSC15585  Lilium pardalinum subsp. pardalinum Fred J. Kindel 1955-7-8 Lassen Susan River Comment
  JEPS22194  Limosella acaulis Rimo Bacigalupi with S. Galen Smith 1957-7-28 5997 Lassen along U.S. Highway 395 on Madeline Plains 3.1 mi s Madeline; Madeline Plains 1615 Comment
  UC1567430  Limosella acaulis G. Schoolcraft 1989-7-24 1995 Lassen along n shore Said Valley Reservoir; n shore of Said Valley Reservoir 1630 Comment
  SEINET9337712  Limosella acaulis Robert Thorne, DeBuhr, Larry 1975-8-22 47206 Lassen Hwy 395 Comment
  CHSC66265  Limosella aquatica Vernon H. Oswald; Lowell Ahart 1996-6-24 7879 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
  JEPS114652  Limosella aquatica Lowell Ahart, John Dittes 2008-6-20 14927 Lassen Bottom of vernal pools, about 100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7.0 miles (air) northeast of Bieber 1263 Comment
  JEPS58271  Linanthus bolanderi J. G. Lemmon May 1878 Lassen Susanville Comment
  JEPS107873  Linanthus ciliatus Lowell Ahart, John Dittes 2005-6-2 11936 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
  JEPS94989  Linanthus ciliatus Vernon Oswald and Lowell Ahart 1997-6-24 8605 .1 Lassen s of Susanville (3.5 mi e of Gold Run Road (29N10), on n side of Diamond Mountain at a stream on Forest Road 29N43); Diamond Mountain, Forest Road 29N43 1655 Comment
  SEINET10902894  Linanthus harknessii Mary Susan Taylor 1974-1 Taylor 290 Lassen Vicinity of Eagle Lake, ca. 13 mi NW of Susanville. Comment
  SEINET11268150  Linanthus harknessii Vernon H. Oswald, Lowell Ahart 1993-6-14 5516 Lassen Eagle Lake Rd. (Lassen a1), 0.5 mi SW of Spaulding Tract Rd. (Rd. 518, 33N89), ca. 3 mi W of Eagle Lake.; 0 1811 Comment
  UC106752  Linanthus septentrionalis T. S. Brandegee 1892-6-30 Lassen Jonesville Comment
  CDA6343  Linaria genistifolia subsp. dalmatica T. C. Fuller 1963-7-15 10893 Lassen Road to Pittville, 4.3 miles northwest of Little Valley. 0 Comment
  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
  UC1924245  Linum lewisii var. lewisii Debra Valov 2004-6-3 2004237 Lassen Hwy 139 c. 1 km S of Junction of County A2 1356 Comment
  UC773885  Lithophragma glabrum L. R. Short 1936-4-28 S- 337 Lassen Harvey Valley; Lassen National Forest, Harvey Valley 1706 Comment
  UC773886  Lithophragma glabrum L. R. Short 1936-4-28 S- 336 Lassen Burgess Spring Experiment Range , Burgess Spring Experiment Range (Lassen National Forest) 1767 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
  CHSC11773  Lithophragma tenellum Wayne O. Baum 1971-6-15 71 -1 Lassen South side of fire trail approx. 100 ft. from Rd. 5 at extreme S. E. corner of Gallatin Peak. 1920 Comment
  CHSC21169  Lithophragma tenellum M. S. Taylor 1974-5-4 228 Lassen Ca. 500 yds n of Eagle Lake Field Station, ca. 13 mi nw of Susanville. 1524 Comment
  CHSC29956  Lithophragma tenellum Robin L. Ondricek 1978-5-25 25 Lassen 150 yds N of cafeteria at Eagle Lake Field Station. 1554 Comment
  SEINET12326115  Lithospermum californicum A. Seneres, Harold, N. 1983-1 104 Lassen Road 21 to Silver Lake. Lassen National Forest Comment
  JEPS107835  Lomatium dissectum var. multifidum Lowell Ahart, John Dittes 2005-6-2 11930 Lassen Along the poor dirt road, about 1/4 mile west of the Anderson Ranch home, Long Valley, about 4 3/4 miles (air) north of the intersection of Scott Road and Highway 70, 6.5 miles (air) northwest of Hallelujah Junction 1498 Comment
  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
  CAS-BOT-BC217798  Lomatium ravenii G. Schoolcraft No date on label 212 Lassen North of Shaffer Mountain 1356 Comment
  JEPS28836 Image available Lomatium ravenii Lincoln Constance and Emil DiFulvio 1962-4-16 3747 Lassen 1 mi. s. Ravendale 1615 Comment
  NY406056  Lomatium ravenii L. Constance 1959-6-14 3672 Lassen One mile south of Ravendale 1463.0 Comment
  UC1187686 Image available Lomatium ravenii Tracey and Viola Call 1961-5-30 2048 Lassen ca. 2 mi. s. Ravendale 1463 Comment
  CHSC112191  Lomatium roseanum Dean Wm. Taylor 2012-6-7 21235 Lassen Sierra Nevada. Diamond Mts.: Ridgetop 1 mile east of Diamond Peak. 2225 Comment
  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
  POM78597  Lomatium triternatum Marcus E. Jones 1897-6-25 s.n. Lassen Susanville. 1341 Comment
  UC729645  Lonicera conjugialis Carl B. Wolf 1929-9-1 3786 Lassen between Grassy Lake and Snag Lake; Mt. Lassen National Park 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
  UC15657  Lotus nevadensis var. nevadensis Milo S. Baker 1893-7-3 Lassen Big Valley Comment
  SEINET10452003  Lotus purshianus Mary Susan Taylor 1974-1 Taylor 281 Lassen Vicinity of Eagle Lake, ca. 13 mi NW of Susanville. Comment
  UC1137756  Lotus purshianus var. purshianus L. R. Short and J. Warren 1936-6-23 S- 447 Lassen Burgess Spring Experimental Range Lassen Forest Comment
  UC773895  Lotus purshianus var. purshianus L. R. Short and J. Warren 1936-6-23 S- 447 Lassen Burgess Spring Experiment Range Lassen Forest Comment
  CHSC110911  Ludwigia palustris Lowell Ahart; John Dittes 2012-7-9 18291 Lassen About 100 yards southeast of the tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC4820  Lupinus R. Carter 1967-7-16 618 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
  RSA0028052  Lupinus John F. Emmel 1996-7-14 1426 Lassen Long Valley; between Hwy. 395 and railroad tracks at south edge of Doyle. 1305 Comment
  RSA624904  Lupinus Jeffrey Huber 1971-6-2 110 Lassen 4 mi. S of Adin along Calif. Hwy. 139. Comment
  CHSC65101  Lupinus angustiflorus Vernon H. Oswald; Lowell Ahart 1995-7-24 7131 Lassen High Cascade Range. N of Lake Almanor on Forest Route 10, ca. 3 mi N of Silver Lake and 1 mi W of Upper Stephens Mdws., just of Pine Creek. 1950 Comment
  CHSC5286  Lupinus arbustus 1944-7-19 Lassen Juniper Lake. 2055 Comment
  SEINET12765226  Lupinus arbustus Vernon H. Oswald 1997-6-24 8635 Lassen South of Susan ville near the small pond on the crest of Diamond Mtn. about midway between Aspen Flat and Red Rock Lookout.; 0 2249 Comment
  SEINET5327673  Lupinus arbustus H. Durio 1979-5-23 s.n. Lassen Meyers Ranch, Adin 1372 Comment
  SEINET10490461  Lupinus arbustus subsp. arbustus Paul Gallian, Billy Joe Cox 1971-6-2 Gallian 478 Lassen Ca 3 miles s of janesville at honey lake, rest area on us hwy 395; in Sagebrush-grass margin between jeffery pine-oak forest and honey lake 1250 Comment
  CHSC5285  Lupinus arbustus var. calcaratus 1927-6-1 Lassen Eagle Lake. Mt. Freedonyer. 2072 Comment
  UC1542916  Lupinus argenteus G. Schoolcraft 1987-9-1 1773 Lassen Ash Valley RNA 1554 Comment
  CAS-BOT-BC208745  Lupinus argenteus var. heteranthus John Thomas Howell 1974-7-8 50461 Lassen Susanville - Sierra Nevada 1295 Comment
  CAS-BOT-BC208754  Lupinus argenteus var. heteranthus W. W. Eggleston 1927-7-14 21512 Lassen Willow Creek, near Hayden Hill, Modoc Forest 1500 Comment
  CHSC106069  Lupinus argenteus var. heteranthus Lowell Ahart; John Dittes 2010-7-31 16977 Lassen About 100 yards northeast of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin. 1520 Comment
  NY736931  Lupinus argenteus var. heteranthus J. H. Christ 1949-5-22 18218 Lassen 8 miles southeast of Doyle, along Highway 395 Comment
  NY736987  Lupinus argenteus var. heteranthus M. Bourell 1997-5-31 5879 Lassen Wendel Road 10.9 miles southeast of Highway 395 Comment
  SD147580  Lupinus argenteus var. heteranthus John Thomas Howell, Gordon H. True, Margaret Williams 1973-5-12 49232 Lassen On Hwy 395 NW of Doyle on the road to Milford 1280 Comment
  SEINET11261487  Lupinus argenteus var. heteranthus Robert L. Johnson, Mikel R. Stevens 2015-7-10 3926 Lassen 5.5 rd miles west of jct with Hwy 395 on Dawn Dr then rd to summit of Shaffer Mountain. Ca 16 air mi ene of downtown Susanville.; 0 1899 Comment
  UC1129448  Lupinus argenteus var. heteranthus A. E. Wieslander June 1929 109 Lassen Constantia; Sierraville Quad. Comment
  UC1924256  Lupinus argenteus var. heteranthus Debra Valov 2004-5-31 2004231 Lassen Bieber; off County A2 c. 8 km east of Hwy 299 1274 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
  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
  HSC28310  Lupinus brevicaulis D. H. Norris, T. Nelson, S. Dowty 1971-6-22 19280 Lassen Along Hwy. 395 about 4 mi. E of Standish Comment
  RSA160037  Lupinus caudatus David B. Dunn 1956-7-3 11914 Lassen At junction of Highway 395 and 36 near Johnstonville. 6 miles east of Susanville. Comment
  SEINET10490715  Lupinus caudatus subsp. caudatus Mary Susan Taylor 1982-6-12 Taylor 4653 Lassen T25n, r17e, se1/4, sec 8. Doyle quad. Corolla blue. In sandy sagebrush Scrub, in doyle, ca 0.5 mi. E of hwy 395. Comment
  RSA87160  Lupinus confertus Mary DeDecker 1955-8-25 262 Lassen Honey Lake: Highway 395. Comment
  CHSC91961  Lupinus lepidus var. confertus Richard R. Halse 2004-7-22 6670 Lassen Along U.S. Hwy. 395 ca. 7.8 miles southeast of Susanville. 1293 Comment
  UC527349  Lupinus lepidus var. confertus C. B. Wolf 1931-9-6 2404 Lassen on the road to Wendel 1/2 mi from Janesville (western edge of Honey Lake Valley); western edge of Honey Lake Valley 1280 Comment
  CHSC60356  Lupinus lepidus var. sellulus Mary Ann Showers 1992-6-13 2535 Lassen Lassen Vocanic National Park. Trail from Snag Lake jct to Widow Lake. 1828 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
  JEPS103203  Lupinus leucophyllus G. Schoolcraft 1994-6-9 2347 Lassen 1 1/2 mile NE of Hwy 139 on Grasshopper-Termo Road 1615 Comment
  SEINET10870671  Lupinus leucophyllus Duane Isely 1971-7-12 Isely 11386 Lassen Open sagebrush plains, lassen natl forest, adjacent eo state #44, 29 mi east Jct state #89. Dense, conspicuous clusters; fls white, rapidly turningtan-ochroleucous; standard reflexed to 120 degrees; wings upturned 90 degrees; long-petioled basal leaves evident. 1676 Comment
  SEINET11268214  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.; 0 1725 Comment
  UCD107964  Lupinus leucophyllus R. Tofsrud 1951-7-13 s.n. Lassen Bieber area, Albaugh Ranch. Comment
  RSA715929  Lupinus meionanthus L. P. Janeway, B. Castro 2005-7-10 8477 Lassen Northern High Sierra Nevada. Crest of the Diamond Mountains overlooking Janesville and the north end of Honey Lake; 0.2 km north of Rd. 28N01 and 0.6 km east of junction of Janesville Grade Rd (Rd 208 and 28N02) and Road 28N01. 1859 Comment
  CHSC117186  Lupinus microcarpus var. microcarpus Lowell Ahart; John Dittes 2016-6-7 21018 Lassen On the west edge of State Highway 299, Big Valley Mountains, 0.4 mile (air) northeast of Big Valley Summit, 5.0 miles (air) southwest of Bieber. 1397 Comment
  JEPS103164  Lupinus nevadensis Beth Corbin 2002-4-11 1056 Lassen Skedaddle Ranch Rd, W of Skedaddle Ck, .5 mi NE of Spencer Ck Rd. 1310 Comment
  JEPS103183  Lupinus nevadensis G. Schoolcraft 2000-4-26 2892 Lassen East slopes of Shaffer Mountain 1584 Comment
  CHSC5288  Lupinus obtusilobus 1944-7-26 Lassen Juniper Lake. 2055 Comment
  RSA0005617  Lupinus onustus Marcus E. Jones 1897-6-26 s.n. Lassen Susanville, Perkin's Ranch. 1463 Comment
  SEINET10871085  Lupinus polycarpus Marcus E. Jones 1897-6-26 Jones s.n. Lassen Susanville, perkin's ranch. 1463 Comment
  SEINET10486220  Lupinus saxosus Billy Joe Cox, David B. Dunn 1971-6-2 Cox 2593 Lassen Approx. 12 Mi s of adin on state hwy. 139. In basalt and clay; along edge of Road on rolling knoll, in artemisia-juniper association. 1372 Comment
  SEINET10488913  Lupinus sellulus Katherine L. Morris 1973-5-25 Morris 220 Lassen Collected at 3.5 mi w of susanville, on u.s. 36, In an area of yellow pine and Purshia. Comment
  RSA0105576  Lythrum tribracteatum Lowell Ahart, John Dittes 2013-7-23 18902 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
  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
  CAS-BOT-BC342656  Madia citriodora David D. Keck; J. Clausen 1935-6-25 3761 Lassen Susanville 1300 Comment
  CHSC30624  Madia elegans E. C. Taylor 1975-7-19 73 Lassen Ca. 30 yds nw of ELFS Vesta Holt Hall. 1584 Comment
  JEPS89656  Madia exigua Dean Wm. Taylor with Robert A. Price 1988-6-4 9769 Lassen ca. 6 mi. e. MacArthur (along Hwy. 299 at crossing of Frazer Creek, Fall R. Valley); Pit R. Watershed, Fall R. Valley 1036 Comment
  UC469045  Madia exigua Franklin P. Nutting Lassen Dixie Valley Comment
  CHSC45693  Madia glomerata Vernon Oswald 1986-7-22 2217 Lassen Hwy 36, 11.3 mi e of the Plumas-Lassen County line, 0.5 mi sw of Fredonyer Pass. 1691 Comment
  OBI55501  Madia glomerata David J. Keil, Kathleen Keil 1992-7-25 23607 Lassen Along hwy 36, 9.1 mi E of Plumas County line, W of Susanville Comment
  CAS-BOT-BC343062  Madia gracilis Clare B. Hardham 1969-8-28 17460 Lassen Slope west of Janesville Comment
  SEINET11601445 Image available Madia gracilis J. A. Young 1982-6-9 s.n. Lassen M. Meyer's Ranch, Adin, Ca. 1372 Comment
  CAS-BOT-BC343060  Madia gracilis John Thomas Howell; Gordon H. True; Wayne Dakan 1974-7-30 50653 Lassen Slope south and southeast of Diamond Mt. 2286 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
  CAS-BOT-BC508541  Maianthemum racemosum subsp. amplexicaule Alice Eastwood 1912-8-22 1787 Lassen Trail from Morgans Springs to Sulphur Works 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-BC512876  Maianthemum stellatum John Thomas Howell; Gordon H. True; Margaret Williams 1973-6-28 49421 Lassen Elysian Valley, west of Janesville 1325 Comment
  CAS-BOT-BC347439  Malacothrix floccifera Louella Bass 1974-7-1 EV 153 Lassen Elysian Valley 1325 Comment
  CAS-BOT-BC348029  Malacothrix torreyi G. Schoolcraft 1989-5-31 1885 Lassen About 4 mi. n. Wendel Rd. along Skedaddle Ranch Rd. Comment
  UCD54571  Malvella leprosa Ellen Dean; Dawn Cunningham 2005-10-25 2754 Lassen E. of town of Susanville. Private property N of California Correctional Facility. Western side of property around large playa pond. 1248 Comment
  UCR67380  Malvella leprosa George K. Helmkamp 1990-9-23 A- 8 Lassen Northern Sierra Nevada Mountains, 3 mi east of Susanville, along State Road 36 1345 Comment
  UC810848  Marsilea C. L. Hitchcock 1940-5-26 6649 Lassen 1 mi w Bieber (overflow of Pitt River) Comment
  UC62421  Marsilea oligospora Baker and Nutting 1894-7-12 Lassen Pine Creek Comment
  CHSC6212  Marsilea vestita J. B. Kimsey 1946-6-24 Lassen Pine Creek, Eagle Lake. 1584 Comment
  HSC25433  Marsilea vestita D. H. Norris, Thomas W. Nelson, S. Dowty 1971-6-22 19177 Lassen Harvey Valley near Cone Springs Comment
  CAS-BOT-BC332743  Marsilea vestita R. F. Thorne; Larry E. DeBuhr 1975-8-22 46994 Lassen Along Hwy 395 ca 5 miles N of Medeline and 5.5 miles S of Modoc county line 1615 Comment
  RSA0011558  Marsilea vestita R. F. Thorne, Larry E. DeBuhr 1975-8-22 46994 Lassen Along Highway 395 ca. 5 miles north of Madeline and ca. 5.5 miles south of Modoc county line 1616 Comment
  JEPS127277  Marsilea vestita subsp. vestita Lowell Ahart, John Dittes 2016-7-13 21130 -B Lassen 90 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. Comment
  UC62270  Marsilea vestita subsp. vestita J. Burtt Davy Jun 17 1897-Jun 24 1897 3308 Lassen Honey Lake Valley Comment
  RSA715623  Matricaria matricarioides L. Ahart, John Dittes 2005-6-1 11895 Lassen North side of Scott Road, east side of the railroad underpass, Long Valley, about 4 3/4 mile (air) north of the intersection of Scott Road and Highway 70, 6.2 miles (air) northwest of Hallelujah junction. 1460 Comment
  CHSC66389  Medicago lupulina Vernon H. Oswald; Lowell Ahart 1996-6-17 7812 Lassen Modoc Plateau. Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville. On the edge of the trail at the 6.0 mile post E of Devils Corral Trailhead. 1420 Comment
  UCD107934  Medicago sativa P. B. Kennedy 1927-9-1 s.n. Lassen Standish. Comment
  UC1024833  Melica bulbosa Leo Whitney 1935-6-11 3226 Lassen Fruit Grower's Supply Company, Camp 10; Lassen National Forest Comment
  UCD86363  Melica bulbosa B. L. Kay 1961-6-28 s.n. Lassen 6 miles NW of Madeline. Comment
  JEPS94455  Melica fugax Vernon Oswald and Lowell Ahart 1997-6-24 8645 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
  CHSC115596  Mentha arvensis Lowell Ahart; John Dittes 2015-7-14 20337 Lassen On the west side of the road, about 100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. 1267 Comment
  CHSC58842  Mentha canadensis Vernon H. Oswald; Lowell Ahart 1992-7-16 5109 Lassen Bridge Creek entering McCoy Flat Reservoir on the S side of Hwy. 44 between Old Station and Susanville. 1691 Comment
  CHSC5298  Mentzelia albicaulis 1944-6-23 Lassen Eagle Lake. 1584 Comment
  CHSC60751  Mentzelia albicaulis Vernon H. Oswald; Lowell Ahart 1993-6-14 5536 Lassen Eagle Lake Rd. (Lassen A1) at Sandy Beach on the W shore of Eagle Lake, ca. 2.0 mi ENE of Spaulding Tract Rd. (Rd. 518, 33N89). 1566 Comment
  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
  UC1609094  Mentzelia albicaulis Vernon H. Oswald and Lowell Ahart 1993-7-8 5654 Lassen 1.9 m N Hwy. 44 (on the SE edge of Poison Lake.); Pittville Rd.(Lassen 111,36N01); T32N R7E SE1/4 SE 1/4 Sec. 4 1709 Comment
  JEPS124818 Image available Mentzelia albicaulis M. L. Wheelis 1964-6-30 128 Lassen 11.5 miles north fo Susanville on highway 139. Comment
  CHSC91323  Mentzelia congesta Lowell Ahart; John Dittes 2005-6-1 11887 Lassen On the north side of Scott Road, Long Valley, about 4 1/4 miles (air) north of the intersection of Scott Road and Highway 70, 5.5 miles (air) northwest of Hallelujah Junction. 1433 Comment
  JEPS107445  Mentzelia congesta Lowell Ahart, John Dittes 2005-6-1 11887 Lassen On the north side of Scott Road, Long Valley, about 4 1/4 miles (air) north of the intersection of Scott Road and Highway 70, 5.5 miles (air) northwest of Hallelujah Junction 1433 Comment
  RSA715551  Mentzelia congesta L. Ahart, John Dittes 2005-6-1 11887 Lassen On the north side of Scott Road, Long Valley, about 4.25 miles (air) north of the intersection of Scott Road and Highway 70, 5.5 miles (air) northwest of Hallelujah Junction. 1434 Comment
  CHSC117298  Mentzelia dispersa Lowell Ahart; John Dittes 2016-7-13 21124 Lassen Sides of the overflow, about 50 yards north of the dam, 200 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. 1289 Comment
  RSA32753  Mentzelia dispersa A. A. Heller 1938-6-22 15184 Lassen Mile east of Westwood. 1524 Comment
  UC1121688  Mentzelia dispersa A. Simontacchi 1940-7-8 921 Lassen Blacks Mtn.,Experimental Station, Halls Flat Quad. Comment
  UC725475  Mentzelia dispersa A. A. Heller 1938-6-22 15184 Lassen 1 mi e Westwood (in the yellow pine forest) 1524 Comment
  SD130462  Mentzelia dispersa John Thomas Howell, Gordon H. True 1973-8-1 50204 Lassen The Sierra Nevada. Headwaters of Baxter Creek, Canadian Zone forest, east slope of Diamond Range south of Susanville. 2164 Comment
  CHSC5301  Mentzelia laevicaulis M. West 1946-7-17 Lassen Antelope Grade, near Susanville. Eagle Lake. 1615 Comment
  JEPS124810 Image available Mentzelia laevicaulis G. R. Ostrander 1965-7-12 67 Lassen Growing along U.S. 395 15 miles N. of the junction of Calif. 70 and U. S. 395. Comment
  JEPS124811 Image available Mentzelia laevicaulis J. Yamanaka 1965-7-12 120 Lassen Highway 395, 15 miles N. of junction of Calif. 104 US 395. Comment
  POM83245  Mentzelia montana Marcus E. Jones 1897-6-24 s.n. Lassen 10 to 15 miles west from Amedee. 1220 Comment
  UC1121656  Mentzelia montana Robert W. Gardner 1937-6-18 G 22 Lassen Halls Flat Quadrangle, Burgess Spring Experimental Range Comment
  CAS-BOT-BC231081  Mertensia oblongifolia Margaret J. Williams; Gary Schoolcraft; Arnold Tiehm 1986-5-14 86- 39 -1 Lassen 1.5 mile W of turn to Dodge Reservoir, on road from Tuledad Canyon to Ravendale 1706 Comment
  SD8331  Micranthes odontoloma Mrs. R. M. Austin 1882-8-1 Lassen Lassen Co 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
  CHSC99239  Microseris laciniata subsp. laciniata Lowell Ahart; John Dittes 2008-6-22 15026 Lassen Open meadow area, about 50 yards southwest of the tall poles, mountain meadow, in Big Valley, about 3.5 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber. 1260 Comment
  CHSC99301  Microseris laciniata subsp. laciniata Lowell Ahart; John Dittes 2008-6-22 15036 Lassen About 220 yards west of the road levee, open dry meadow area, in Big Valley, about 2.1miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 5 miles (air) northeast of Bieber. 1262 Comment
  JEPS88326  Microseris laciniata subsp. laciniata Vernon H. Oswald and Lowell Ahart 1996-6-24 7843 Lassen Papoose Meados located ca.0/5 mi E of Eagle Lake Road (A1) and 2.5 mi S of Eagle Lake, Modoc Plateau. 1633 Comment
  UC507004  Microseris laciniata subsp. laciniata George A. Fischer and Irwin H. Johnson 1933-7-12 F 195 Lassen Grass Valley Lassen Forest, , Dry Lake 1694 Comment
  UC563094  Microseris laciniata subsp. laciniata Elmer I. Applegate 1929-6-24 5879 Lassen near Bieber; Big Valley, Gumbo Flat Comment
  CHSC106089  Microseris nutans Lowell Ahart; John Dittes 2010-7-31 17000 Lassen Dry meadow, on the north side of the road, about 30 yards north of the large culvert, where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin. 1516 Comment
  CAS-BOT-BC349299  Microseris nutans Elmer I. Applegate 1929-6-21 5778 Lassen Kelly's Camp, Warner Valley, Mt. Lassen region Comment
  CHSC112452  Microsteris gracilis Lowell Ahart; John Dittes, Todd Sloat 2013-6-8 18741 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
  NY963937  Microsteris gracilis var. humilior V. E. Grant 1956-5-18 9802 Lassen About 8 miles south of Madeline 1280 Comment
  UCR201716  Mimulus Ken Osborne 2005-4-23 s.n. Lassen 6 miles SE of Honey Lake, 1 mile west of Turtle Mountain 1276 Comment
  JEPS107307  Mimulus arvensis Lowell Ahart, John Dittes 2005-6-1 11900 Lassen On the north side of Scott Road, east side of the railroad underpass, Long Valley, about 4 3/4 miles (air) north of the intersection of Scott Road and Highway 70, 6.2 miles (air) northwest of Hallelujah Junction 1459 Comment
  UC1776670 Image available Mimulus arvensis G. Schoolcraft 1994-7-6 2356 Lassen About 2 miles west of Boot Lake 2103 Comment
  JEPS10551  Mimulus breweri Brown and Wieslander 1922-7-30 47 Lassen near Martin Sprs. Comment
  UC1778583  Mimulus evanescens S. E. Schoenig 1998-7-5 98 -70 Lassen SW shore of Moll Reservoir, 2 meters from waters edge. 1499 Comment
Read comments
May 29 2009
  JEPS28988  Mimulus guttatus Frances D. Payne 1929-7-12 97 Lassen near s extremity Warner Range; Upper Silver Creek 2499 Comment
  JEPS107380  Mimulus mephiticus Lowell Ahart, John Dittes 2005-6-1 11869 Lassen On the west side of the poor dirt road, about 1/2 mile west of Scott Road, Long Valley, about 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.9 miles (air) northwest of Hallelujah Junction 1448 Comment
  UC1136833  Mimulus microphyllus L. R. Short and J. Warren 1936-6-10 S- 417 Lassen Burgess Spring Experiment Range Lassen <National> Forest 1856 Comment
  UC27054  Mimulus moniliformis M. S. Baker and Frank Nutting 1894-7-9 Lassen Pine Creek Comment
  SEINET10863348  Mimulus nanus Paul Gallian, David B. Dunn 1971-6-2 Gallian 518 Lassen 6 mi n of hallelujah jct on us hwy 395 in artemisia tridentata, pinyon pine, Jeffery pine along high ridge and in sandy wash. 1402 Comment
  JEPS63626  Mimulus nanus var. jepsonii G. S. Crew and C. S. Robinson 1927-6-25 23 Lassen near Wetwood Junction; Lassen Forest, Norval Flat 1747 Comment
  HSC63954  Mimulus nanus var. mephiticus Teresa Prendusi 1980-7-1 Lassen Champ's Flat 1707 Comment
  JEPS29741  Mimulus nanus var. mephiticus Rimo Bacigalupi, and L. R. Heckard 1962-5-28 8496 Lassen 2.7 mi n Milford (along U.S. Highway 395) 1219 Comment
  JEPS85744  Mimulus nanus var. mephiticus Roy E. Buck, Robert A. Price 1988-6-26 1032 Lassen ca. 30 air km nne Susanville (on subsidiary peak ca 0.5 air km n of main summit); Fredonyer Peak 2377 Comment
  LA38975  Mimulus nanus var. mephiticus Frank W. Peirson; 1926-6-24 6853 Lassen Madeline Plain Comment
  UC124340  Mimulus nanus var. mephiticus Gustav Eisen 1891-1 Lassen Honey Lake Comment
  UC1553406  Mimulus nanus var. nanus Gary Schoolcraft 1988-6-20 1813 Lassen 16 mi w Madeline; Ash Valley 1584 Comment
  UC1609130  Mimulus nanus var. nanus Vernon H. Oswald and Lowell Ahart 1993-6-3 5482 Lassen 1.8 mi n Lassen 21 (32N02) to Eagle Lake (Champs Flat Rd. (Lassen 105, Forest 32N28Y), nw edge of valley, between Poison Lake and Susanville); Pine Creek Valley 1728 Comment
  RSA536391  Mimulus pygmaeus Beth Corbin 1991-6-10 621 Lassen Pine Creek at Little Harvey Valley 8 miles NE of USFS Bogard Work Center. 1700 Comment
  JEPS19730  Mimulus suksdorfii Rimo Bacigalupi with S. Galen Smith and Geo. Bacigalupi Jr. 1957-6-28 5990 Lassen 7.0 mi n of Madeline (about 1 mi n of Sage Hen siding on Southern Pacific Rail Road, just e of U.S. Highway 395); on Southern Pacific Rail Road 1676 Comment
  CAS-BOT-BC10905  Mimulus suksdorfii Clarence Roy Quick 1962-6-17 62 -21 Lassen Blacks Mountain Experimental Forest Headquarters, USFS, south of Hall's Flat. 1615 Comment
  CHSC29936  Monardella odoratissima subsp. glauca Robin L. Ondricek 1978-6-27 79 Lassen Pine Creek, sw of the bridge which crosses the creek just upstream (sw) of the California Dept. of Fish and Game's fish milking station. 1566 Comment
  UC1537598  Monardella odoratissima subsp. glauca Gordon H. True Jr. 1936-6-27 552 Lassen between Bull Flat and Hot Spring Mountain 1524 Comment
  UC124967  Monardella odoratissima subsp. pallida T. S. Brandegee 1892-6-30 Lassen Susanville Comment
  UC506977  Monardella odoratissima subsp. pallida George A. Fischer, Irwin H. Johnson 1933-7-12 F 225 Lassen Lassen Forest 1722 Comment
  CHSC116086  Monolepis nuttalliana Lowell Ahart; John Dittes 2015-7-13 20311 Lassen Along levee road, about 300 yards south of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC63392  Monolepis nuttalliana Vernon H. Oswald; Beth Corbin, Michael Dolan 1994-6-18 6315 Lassen Cold Springs near Clarks Valley Rd. (Lassen 510) ca. 11 mi E of Madeline. 1871 Comment
  UC1602197  Monolepis nuttalliana M. S. Baker and Frank Nutting 1894-7-2 Lassen s. side Dixey Mts. Dixey Mts. Comment
  RSA370315  Monolepis pusilla A. Tiehm, Margaret J. Williams, Gary Schoolcraft 1986-5-12 10351 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
Read comments
Feb 14 2017
  UC526137  Monolepis pusilla John Thomas Howell 1934-6-10 11895 Lassen Horse Lake Comment
  CAS-BOT-BC444694  Montia chamissoi Malcom A. Nobs; S. Galen Smith 1949-7-21 1064 Lassen 4 miles north of Madeline Comment
  CHSC57311  Montia chamissoi Mary Meyer 1980-7-9 Lassen In Horse Camp Spring. 1706 Comment
  NY497723  Montia chamissoi N. H. Holmgren 1978-6-11 8917 Lassen Vicinity of spring at fork to Painters Flat on east side of Observation Peak, 28 km (17.4 miles) east of Ravendale and 22.5 km (14 miles) airline distance 1680 Comment
  NY497728  Montia chamissoi G. Schoolcraft 1993-6-1 2272 Lassen Upper Secret Creek, south of Tule Patch Spring 1463.0 Comment
  UC1586593  Montia dichotoma Vernon H. Oswald 1991-5-28 4618 Lassen 5 mi ne of Bieber (Wayman Barn at the w end of Hunt Road, Ash Creek Wildlife Area, flat east of barn); Ash Creek Wildlife Area 1264 Comment
  CAS-BOT-BC445065  Montia linearis Louella Bass 1973-5-29 55 Lassen Elysian Valley. 1325 Comment
  JEPS94476  Montia linearis Vernon H. Oswald and Lowell Ahart 1997-5-27 8497 Lassen 0.1 mi e of Highway 139 (n of Susanville on Forest Route 38N04 between Highway 139 near Willow Creek Guard Station and Coyote Flat, small creek paralleling the road); Forest Route 38N04 1546 Comment
  UC1609172  Montia linearis Vernon H. Oswald and Lowell Ahart 1993-6-28 5611 Lassen ne of Poiston Lake (on the sse flank of Harvey Mountain, n of Hwy 44 on Rd, 33N06, nne of Burgess Meadow); Harvey Mountain 1798 Comment
  CAS-BOT-BC445066  Montia linearis Louella Bass 1973-4-23 27 Lassen Elysian Valley. 1325 Comment
  SEINET960052  Montia linearis Unknown 1978-1 8915 Lassen Vicinity of Spring at fork to Painters Flat on east side of Observation Peak, 28 Km (17.4 mi) airline distance. 1680 Comment
  UC507007  Muhlenbergia richardsonis George A. Fischer and Irwin H. Johnson 1933-7-12 F- 196 Lassen Dry Lake Lassen <National> Forest, Grass Valley 1694 Comment
  UCD86955  Muhlenbergia richardsonis Malcolm A. Nobs; S. Galen Smith 1949-7-21 1060 Lassen 4 miles N of Madeline. Comment
  UC1483824  Muilla transmontana G. Schoolcraft 1980-6-6 255 Lassen sw Herlong; Bird Canyon 1341 Comment
  UCD55275  Muilla transmontana Ellen Dean 2006-5-15 3090 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. 1246 Comment
  CAS-BOT-BC515651  Muilla transmontana G. Schoolcraft 1989-5-3 1863 Lassen NW corner of Secret Valley near Karlo Comment
  UC1951072  Myosurus apetalus Debra Valov 2009-4-26 2009019 Lassen Bieber; property on south side of County A2 c. 5.4 mi east of Hwy 299 Comment
  CAS-BOT-BC392254  Myosurus apetalus Margaret J. Williams; Gary Schoolcraft; Arnold Tiehm; Arnold Tiehm 1986-5-14 86- 38 -3 Lassen Tuledad Canyon Rd., from Duck Flat to Ravendale. 0.1 mi from Calif-Nev line Comment
  CHSC27619  Myosurus apetalus var. borealis Robert A. Schlising 1978-7-30 3331 Lassen S of Eagle Lake at Deans Ridge. Margin of reservoir. 1950 Comment
  SEINET5338208  Myosurus aristatus M. J. Williams, G. Schoolcraft; A. Tiehm 1986-5-14 86- 38 -3 Lassen Tuledad Canyon Rd., from Duck flat to Ravendale. 0.1 mi W of Calif-Nev line. Comment
  CHSC107321  Myosurus minimus Lowell Ahart; John Dittes 2011-6-21 17531 Lassen Bottom of a vernal pool, just west of the fence, about 300 yards southwest of the Parking Area west of the old barn, on the west side of Elkins Lane, Ash Creek State Wildlife Area, about 4.4 miles (air) west of Adin, about 7.2 miles (air) northeast of Bieber, Big Valley. 1268 Comment
  JEPS118467  Myosurus minimus Lowell Ahart, John Dittes 2011-6-21 17531 Lassen Bottom of a vernal pool, just west of the fence, about 300 yards southwest of the Parking Area west of the old barn, on the west side of Elkins Lane, Ash Creek State Wildlife Area, about 4.4 miles (air) west of Adin, about 7.2 miles (air) northeast of Bieber, Big Valley 1268 Comment
  CHSC77218  Myriophyllum sibiricum G. Schoolcraft 1996-7-10 2532 Lassen Willow Creek- northeast of Susanville. 1432 Comment
  RSA233733  Myriophyllum sibiricum Robert F. Thorne, C. W. Tilforth 1969-9-5 39134 Lassen Said Valley Reservoir. Comment
  SEINET231810 Image available Myriophyllum sibiricum A. Tiehm, G Schoolcraft 1984-8-14 9243 Lassen Buckhorn Reservoir on S side of Buckhorn rd to Ravendale about 6 rd mi W of the state line. 1698 Comment
  UC1101501  Myriophyllum sibiricum Verne Grant and Irving Schneider 1947-9-7 8398 Lassen Susan River by Highway 395 at Bridge 7-34, 1/2 mi W of Litchfield. Comment
  CHSC14186  Nama densa M. S. Taylor 1974-7-12 305 Lassen Scattered around Mahogany Lake, ca. 3 mi s of Eagle Lake Field Station, ca. 13 mi nw of Susanville. 1524 Comment
  CHSC60903  Nama densa var. densa Vernon H. Oswald; Lowell Ahart 1993-7-8 5658 Lassen Pittville Rd. (Lassen 111, 36N01) 1.9 mi N of Hwy. 44, on the SE edge of Poison Lake. 1709 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
  CHSC60842  Navarretia breweri Vernon H. Oswald; Lowell Ahart 1993-6-28 5592 Lassen Harvey Valley Rd. (33N02), 1.7 mi N of Hwy 44, E side of Grays Valley, E of Poison Lake. On the bed of a vernal pool in a meadow. 1719 Comment
  JEPS87403  Navarretia breweri Vernon H. Oswald and Lowell Ahart 1993-6-14 5517 Lassen Eagle Lake rd (Lassen A1) ca 3 mi w Eagle Lake (0.5 mi sw of Spaulding Tract Rd (Rd 518, 33N89)) 1810 Comment
  UC1124158  Navarretia breweri A. Simontacchi 1940-5-28 774 Lassen 3.2 mi wsw Patterson Mtn.; Lassen National Forest, Halls Flat Quad. 1767 Comment
  RSA136592  Navarretia breweri David B. Dunn 1956-7-3 11921 Lassen On Highway 395. Comment
  CHSC4887  Navarretia capillaris Bill Wilson 1967-7-5 41 Lassen Collected at Eagle Lake Biological Station. 10 mi. N of Susanville, outside laboratory building. 1584 Comment
  CHSC14175  Navarretia divaricata K. R. Stern; D. B. Joley, J. G. Geschke 1974-6-22 5806 Lassen E side of Hwy. 139, ca. 2 mi s of Termo-Grasshopper Road and ca. 44 mi n of Susanville. Comment
  JEPS121309  Navarretia intertexta subsp. intertexta Lowell Ahart, John Dittes 2013-7-22 18869 Lassen 10 yards S of the man-made pond, about 140 yards N of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley. Comment
  JEPS124382  Navarretia intertexta subsp. intertexta Lowell Ahart, John Dittes 2015-11-14 20303 Lassen Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. Comment
  CHSC112979  Navarretia intertexta subsp. propinqua Lowell Ahart; John Dittes 2013-7-22 18853 Lassen Drainage filled with dirt from construction of a pond, 10 yards south of the man made pond, about 140 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC99510  Navarretia intertexta subsp. propinqua Lowell Ahart; John Dittes 2008-6-22 15031 Lassen On the banks of a small natural drainage, about 120 yards west of the road levee, open meadow area, in Big Valley, about 2.1 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 5.0 miles (air) northeast of Bieber. 1262 Comment
  UC913382  Navarretia intertexta subsp. propinqua G. Thomas Robbins 1945-9-24 2148 Lassen along Susanville to Pittville highway; Lassen National Forest 1737 Comment
  SJSU11520  Navarretia leucocephala subsp. bakeri J. W. Tilden 1958-6-27 1295 Lassen Madeline, Madeline Plains 1615 Comment
  UC909068  Navarretia leucocephala subsp. bakeri G. L. Stebbins Jr. 1949-8-6 4003 b Lassen between Susanville and McArthur (edge of Feather Lake); Feather Lake 1676 Comment
  JEPS121308  Navarretia leucocephala subsp. leucocephala Lowell Ahart 2013-7-22 18851 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
  CHSC117270  Navarretia leucocephala subsp. minima Lowell Ahart; John Dittes 2016-7-15 21213 Lassen About 300 yards west of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) notheast of Bieber, Big Valley. 1261 Comment
  POM312617  Navarretia leucocephala subsp. minima Malcolm A. Nobs, S. Galen Smith 1949-5-29 756 Lassen Nubieber on Great Northern Railway, Highway 299 Comment
  UC909096  Navarretia leucocephala subsp. minima G. L. Stebbins Jr. 1949-8-6 4003 a Lassen between Susanville and McArthur (edge of Feather Lake); Feather Lake 1676 Comment
  CAS-BOT-BC230389  Navarretia leucocephala subsp. minima Lincoln Constance 1946-7-3 s.n. Lassen Madeline Station Comment
  UC908650  Navarretia leucocephala subsp. minima Lincoln Constance 1946-7-3 Lassen Madeline Station Comment
  SEINET2440301  Navarretia linearifolia subsp. linearifolia Leigh A. Johnson 2006-7-2 06 -138 Lassen Lassen Nat. Forest, Long Lake vicinity. Off Hwy 44 at mile marker 20.74 (just E of jct between 44 and county road A21). Along shore between trees and water's edge, particularly at point where spur from Hwy 44 connects with road next to lake.; 0 1736 Comment
  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
  UC1609451  Navarretia linearifolia subsp. linearifolia Vernon H. Oswald and Lowell Ahart 1993-6-28 5616 Lassen on Rd 33N06 n Hwy 44 (sse flank of mt., nne of Burgess Meadow, ne of Poison Lake); Harvey Mtn. 1798 Comment
  POM74669  Navarretia sinistra Marcus E. Jones 1897-6-26 10226 Lassen Susanville, Perkin's Ranch. 1463 Comment
  SEINET14160494  Navarretia sinistra D. W. Taylor 2012-7-18 21281 Lassen Cascade Ranges, Windmill Flat (9tributary Juniper Creek, Pit River watershed, 11 miles S of Adin), Letterbox Hill. 1707 Comment
  CHSC115600  Navarretia sinistra subsp. sinistra Lowell Ahart; John Dittes 2015-7-14 20521 Lassen Northwest of the pond, east part of the camping area, west side of Childs Meadow, 0.67 air-miles west of intersection of State Highway 36 and Wilson Lake Road (County Road 769), 1.21 air-miles southeast east of Doe Mt., 10.41 air-miles south of Lassen Peak. 1498 Comment
  JEPS27169  Nemacladus capillaris Lauramay T. Dempster 1961-6-17 1673 Lassen about 4 mi sw Gold Run Creek junction with Richmond Road (Gold Run Creek, s of Susanville); Gold Run Creek Comment
  POM68111  Nemacladus sigmoideus Marcus E. Jones 1897-6-18 s.n. Lassen Chat. 1524 Comment
  CHSC112404  Nemophila pedunculata Lowell Ahart; John Dittes, Todd Sloat 2013-6-8 18724 Lassen Drainage filled with dirt from construction of a pond, about 30 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC61157  Nemophila pedunculata Vernon H. Oswald; Lowell Ahart 1993-5-12 5389 Lassen Hwy. 44 between Poison Lake and A21 (to Westwood), 1.6 mi SE of Pittsville Rd. In a sagebrush scrub meadow on the S side of the road. 1719 Comment
  JEPS1932  Nemophila pedunculata L. Constance 1938-6-10 2323 Lassen 2.6 mi sw Fredonyer Pass (McKenzie Meadows at Coppervale Ranger Station, Chester--Susanville Road); McKenzie Meadows, sw of Fredonyer Pass 1524 Comment
  NY1082721  Nemophila pedunculata N. H. 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
  PASA2124  Nemophila spatulata Margaret Stason 1932-6-21 439 Lassen Devil's Kitchen, Lassen National Park Comment
  CAS-BOT-BC349855  Nestotus stenophyllus Alice Eastwood; John Thomas Howell 1940-6-15 8314 Lassen Upper Willow Creek east of Hayden Hill Comment
  CHSC44642  Nestotus stenophyllus J. D. Jokerst 1983-5-30 1795 Lassen Ca. 1.5 miles north of the north edge of Eagle Lake ca. 1.0 mile N of Eagle Lake Rd 50 meters west of Highway 139. 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
  CHSC31980  Nicotiana attenuata L. Ahart 1974-7-9 544 Lassen Along Hwy 395, 1 mi n of jct Hwy 70 and Hwy 395. 1524 Comment
  SEINET6174383  Nicotiana attenuata A. Kowal, D. Mathews, S. Massed, S. Batiuk, B. Kalb 2011-8-10 NV 030 -594 Lassen Constantia fire, Constantia Road off Highway 395 1344 Comment
  UC1125173  Nicotiana attenuata A. Simontacchi 1940-7-2 934 Lassen Halls Flat Ranger Station; Lassen National Forest, Halls Flat Quad. 1706 Comment
  UCD126693  Nicotiana attenuata Gerald Dickinson 1963-7-17 108 Lassen at entrance of Eagle Lake recreation site, Highway 139. 1559 Comment
  POM103204  Nitrophila occidentalis Marcus E. Jones 1897-6-23 s.n. Lassen Amedee. 1220 Comment
  CHSC60719  Nothocalais troximoides Vernon H. Oswald; Lowell Ahart 1993-6-14 5529 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). Dunes on the upper beach between the road and the lake. 1566 Comment
  UC682109  Nothocalais troximoides G. L. Stebbins Jr. with A. A. Beetle 1942-5-30 3238 Lassen on road to Adin 5.2 mi e Bieber 1280 Comment
  CAS-BOT-BC400059  Nuphar polysepala Marcus E. Jones 1897-6-24 s.n. Lassen 10-15 miles west from Amedee 1219 Comment
  JEPS124824 Image available Oenothera deltoides B. Wenegrat 1969-7-8 52 Lassen off H. 395 8 miles S of Milford. Comment
  JEPS124825 Image available Oenothera deltoides C. Meek 1969-7-8 68 Lassen Along Hi #395, 1 mi south of intersection to Herlong Army Depot, 8 mi. south of Milford. Comment
  RSA8247  Oenothera flava Elmer I. Applegate 1929-6-24 5881 Lassen Big Valley south of Bieber 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
  CHSC71384  Onopordum acanthium Vernon H. Oswald; Beth Corbin, Gary Schoolcraft 1998-7-13 9262 Lassen Near Bieber on Susanville Rd. (A2) 2.5 mi east of Hwy. 299. Roadside and fields. 1280 Comment
  CDA36782  Onopordum acanthium D. B. Joley 1976-6-16 21 Lassen Grasshopper Lake. 0 Comment
  CHSC66716  Oreostemma alpigenum var. andersonii Vernon H. Oswald; Lowell Ahart 1996-8-1 8121 Lassen Forest Rd. 28N56 (D-Line) ca. 2 mi N of Dyer Mtn. Lookout, SSW of West-wood. 1737 Comment
  CAS-BOT-BC350041  Oreostemma alpigenum var. andersonii Hans Leschke 1959-8-3 1595 Lassen Lassen Volcanic National Park. Grassy Swales 1935 Comment
  SEINET230278  Orobanche corymbosa Noel H. Holmgren, Patricia K. Holmgren 1980-7-4 9509 Lassen Observation Peak south side of mountain 18 km (11mi) airline distance east of Ravendale. 1890 Comment
  UC1561410  Orobanche corymbosa subsp. corymbosa Barbara Ertter 1987-7-25 7315 Lassen Ca 27 air miles NW of Susanville, FR33N02 to Harvey Valley W of junction with FR33N04. Comment
  CAS-BOT-BC500270  Orobanche uniflora subsp. occidentalis Doris Kildale Gillespie 1930-5-13 9368 Lassen Between Susanville and Janesville Comment
  CAS-BOT-BC266614  Orthocarpus cuspidatus Lassen 1927 G. S. Crew 1927-7-15 66 Lassen 1 mile W Bogard Ranger Station 1737 Comment
  UC1137684  Orthocarpus cuspidatus subsp. cryptanthus L. R. Short and J. Warren 1936-6-23 S- 453 Lassen Burgess Spr. Exp. Range; Lassen Forest, Burgess Spr. Exp. Range 1804 Comment
  UC1523713  Orthocarpus cuspidatus subsp. cryptanthus Gary Schoolcraft 1981-7-6 616 Lassen near top Goodrich Mtn.; near top of Goodrich Mtn. 1828 Comment
  RSA165526  Orthocarpus hispidus Clare B. Hardham 1961-6-17 7501 Lassen Baxter Creek S of Susanville. 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
  JEPS117577  Packera cana Lowell Ahart, John Dittes 2010-7-31 16990 Lassen About 2,300 feet north of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin 1510 Comment
  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
  CHSC7639  Packera multilobata Beverley J. Wise 1969-5-3 27 Lassen 4.5 mi. east of junction of Hwy 395 and Las. Co. 338 (Smokey Creek Road). 1554 Comment
  POM99654  Paeonia brownii Marcus E. Jones 1897-6-19 s.n. Lassen Chat. 1616 Comment
  SEINET10537847  Paeonia brownii Mary Susan Taylor 1982-8-27 Taylor 5053 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
  SEINET10537856  Paeonia brownii Billy Joe Cox, David B. Dunn 1971-6-2 Cox 2604 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
  UC1131606  Panicum capillare H. S. Yates 1936-8-11 6073 Lassen Baxter Creek Susanville Quad., Baxter Creek Comment
  CAS-BOT-BC253786  Panicum hillmanii John Thomas Howell 1973-7-10 49808 Lassen Doyle Comment
  UC1258487  Pectocarya penicillata G. Schoolcraft 1980-5-8 231 A Lassen e Herlong; Bureau of Land Management 1219 Comment
  HSC31343  Pectocarya setosa D. H. Norris, T. Nelson, S. Dowty 1971-6-22 19279 Lassen Along Hwy. 395, 4 mi. E of Standish Comment
  UC79157  Pectocarya setosa T. S. Brandegee 1892-6-22 Lassen Honey Lake Comment
  SBBG68675  Pedicularis attollens S. W. Hutchinson -Jun-1925 1092 Lassen Eagle Lake 1554 Comment
  UCR267420  Pedicularis centranthera Jim Andre, Glenn L. Clifton 1993-6-14 30003 Lassen northeast base of Shaffer Mountain near Secret Creek, c. 20 mi east-northeast of Susanville 1646 Comment
  JEPS3332  Pedicularis groenlandica George Gillett 1952-7-29 119 Lassen w slopes of Paradise Meadow; Lassen Volcanic National Park 2148 Comment
  UC506905  Pedicularis semibarbata George A. Fischer, Irwin H. Johnson 1933-7-19 F 272 Lassen Lassen National Forest 1737 Comment
  UC62506  Pellaea Baker and Nutting 1894-5-25 Lassen Pine Creek Comment
  UC303057  Pellaea brachyptera Pearl Safford Lassen Susanville [uncertain locality] Comment
  SBBG85835  Penstemon deustus F. W. Pennell 1940-6-9 25768 Lassen below basaltic ridge, hill W of Susanville 1371 Comment
  SD77352  Penstemon deustus Francis W. Pennell 1940-6-7 25722 Lassen Route 299, 11 miles west of Nubieber 1096 Comment
  CHSC4441  Penstemon deustus var. pedicellatus K. R. Stern 1967-6-30 2451 Lassen West Central side of Eagle Lake. 1554 Comment
  CHSC93676  Penstemon deustus var. pedicellatus Lowell Ahart; John Dittes 2005-6-2 11979 Lassen North side of a poor dirt road, Long Valley, about 4 1/2 miles (air) northeast of the intersection of Scott Road and Highway 70, 5.7 miles (air) northwest of Hallelujah Junction. 1410 Comment
  CHSC4862  Penstemon gracilentus R. Carter 1967-7-7 580 Lassen Collected ca. 20 yds from e shore of small reservoir. Dean's Meadow. Comment
  JEPS11269  Penstemon gracilentus Jos. Grinnell 1928-6-16 Lassen Eagle Lake Lassen Peak Region 1584 Comment
  JEPS11274  Penstemon gracilentus Brown and Wieslander 1922-7-23 43 Lassen Martin Sprs , Martin Sprs (Eagle Lake) Comment
  NY600695  Penstemon gracilentus G. H. True Jr. 1938-7-14 959 Lassen Summit on Milford Grade, just on north slope 1676.4 Comment
  UC27451  Penstemon gracilentus M. S. Baker and Frank Nutting 1894-7-12 Lassen Pine Creek Pine Creek Comment
  HSC21014  Penstemon gracilentus M. T. Milligan 1964-7-16 142 Lassen 2 mi. W on the Silver Lake Rd., along Upper Susan River. 1829 Comment
  CHSC60419  Penstemon heterodoxus var. shastensis Mary Ann Showers 1992-6-12 Lassen Lassen Volcanic National Park. Meadow enclosed by lava flow, Butte Lake. 1859 Comment
  CHSC68882  Penstemon janishiae Vernon Oswald; Lowell Ahart 1997-6-24 8644 Lassen South of Susanville near the small pool on the crest of Diamond Mtn., about midway between Aspen Flat and Red Rock Lookout. 2249 Comment
  POM43270  Penstemon miser Marcus E. Jones 1897-6-28 s.n. Lassen Top of Diamond Mt., Susanville, Perkin's Ranch. 2226 Comment
  JEPS9341  Penstemon neotericus George W. Gillett 1953-7-13 272 Lassen Westwood Junction, Highway 36 Lassen National Forest, Westwood Junction, Highway 36 (open areas near road) 1562 Comment
  NY627263  Penstemon neotericus A. A. Heller 1938-7-28 15294 Lassen Pinus Ponderosa forest west of Westwood. Comment
  SBBG28836  Penstemon neotericus A. A. Heller 1939-7-28 15294 Lassen W of Westwood 1524 Comment
  NY627268  Penstemon neotericus C. G. Gulling 1905-1 s.n. Lassen Big Meadows Comment
  POM147859  Penstemon neotericus J. B. Feudge 1927-7-20 1768 Lassen Westwood. Comment
  RSA519227  Penstemon neotericus Karl 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 miles WNW of Susanville. 1738 Comment
  SEINET5323576 Image available Penstemon procerus var. procerus C. G. Gulling 1905-1 s.n. Lassen Big Meadows Comment
  JEPS29104  Penstemon roezlii Lauramay T. Dempster 1961-6-17 1680 Lassen just w Tule Mountain; just w of Tule Mountain 1645 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
  JEPS81837  Penstemon roezlii Rimo Bacigalupi with Lincoln Constance 1959-6-16 7138 Lassen beside U.S. 395 one-fourth mi s of junction of road to Smoke Creek; s of junction of rd to Smoke Creek 1341 Comment
  UCD124154  Penstemon roezlii Mrs. H. C. Cantelow 1941-5-24 s.n. Lassen Balls Canyon, south of Secret Valley. Comment
  CHSC107320  Penstemon rydbergii var. oreocharis Lowell Ahart; John Dittes 2011-6-20 17502 Lassen Meadow, about 40 yards west of the stream, about 50 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
  CHSC12483  Penstemon rydbergii var. oreocharis Carol Weld 1969-6-20 15 Lassen Dean's Meadow. 1950 Comment
  CHSC59826  Penstemon rydbergii var. oreocharis Mary Meyer 1980-7-9 Lassen In dry meadows 1 mi northwest of Horse Camp Spring. 1706 Comment
  CHSC93700  Penstemon rydbergii var. oreocharis Lowell Ahart; John Dittes 2005-6-2 11988 Lassen Along a small wash, east side of a poor dirt road, Long Valley, about 4 1/2 miles (air) northeast of the intersection of Scott Road and Highway 70, 6.0 miles (air) northwest of Hallelujah Junction. 1427 Comment
  RSA702452  Penstemon rydbergii var. oreocharis L. P. Janeway 2004-6-26 8161 Lassen High Cascade Range. At Patterson Well in Patterson Flat; Blacks Mountain Experimental Forest. 1767 Comment
  SBBG66488  Penstemon rydbergii var. oreocharis S. W. Hutchinson -Jun-1925 1088 Lassen Eagle Lake 1554 Comment
  UCSB6193  Penstemon rydbergii var. oreocharis Heller, A. 1938-6-23 Lassen East of Westwood 1493 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
  CHSC13894  Penstemon speciosus L. E. Ray 1967-6-24 33 Lassen Collected ca. 3 mi. se ELBS, above Upper Murrer Meadow. 1524 Comment
  CHSC25148  Penstemon speciosus L. E. Ray 1967-6-24 52 Lassen Collected ca. 8 miles s ELBS, Deans Meadow. 1950 Comment
  CHSC64811  Penstemon speciosus Vernon H. Oswald 1995-5-31 6812 Lassen Modoc Plateau. Smoke Creek Ranch Rd. 2.0 mi e of Hwy. 395, between Litchfield and Ravendale. 1341 Comment
  CHSC98580  Penstemon speciosus B. Castro; L. P. Janeway 2005-7-10 1495 Lassen Northern High Sierra Nevada. Crest of the Diamond Mtns, overlooking Janesville and Honey Lake, 0.15 mi N of Rd 28N01 and 0.4 mi E of its junction with Janesville Grade (Rd 29N01/Rd 208). Knoll on N side of crest, in soft decomposed granite soil among rounded granite boulders. 1859 Comment
  JEPS101465  Penstemon speciosus Dean W. Taylor 1974-6-14 3721 Lassen Janesville Grade road about 4 miles SSW Janesville, Plumas National Forest 1706 Comment
  JEPS28986  Penstemon speciosus Frances D. Payne 1929-7-12 86 Lassen ridge above Lost Lake (southern end Warner Range); , ridge above Lost Lake 2286 Comment
  JEPS9349  Penstemon speciosus George W. Gillett July 1953 273 Lassen Fredonyer Pass Lassen National Forest, Fredonyer Pass (Highway 36) 1752 Comment
  POM44291  Penstemon speciosus Marcus E. Jones 1897-6-28 s.n. Lassen Top of Diamond Mt., Susanville, Perkin's Ranch. 2226 Comment
  UC1063512  Penstemon speciosus A. Simontacchi 1940-6-8 24250 Lassen 4.1 mi e Halls Flat Ranger Station; Lassen National Forest, Halls Flat Quad. 1737 Comment
  UC1142999  Penstemon speciosus August L. Hormay 1934-6-30 Lassen Harvey Valley Lassen National Forest 1615 Comment
  UC1527430  Penstemon speciosus Gordon H. True Jr. 1936-6-25 529 Lassen e Harvey Ranger Station (Harvey Valley); , e of Harvey Ranger Station 1767 Comment
  UC423512  Penstemon speciosus David D. Keck 1930-7-23 947 Lassen Reno Junction Sierra Nevada, Reno Junction (southeastern Lassen County) 1493 Comment
  UC423671  Penstemon speciosus David D. Keck 1930-7-23 950 Lassen Susanville Sierra Nevada, Susanville 1280 Comment
  RSA38458  Penstemon speciosus Philip A. Munz 1947-5-19 11877 Lassen Hwy 395, 3.5 miles S of Ravendale. 1616 Comment
  UC1012214  Penstemon speciosus Francis W. Pennell 1940-7-23 26254 Lassen Route 395, 2 mi n of junction with Route #24 (ne of Plumas); ne of Plumas 1524 Comment
  OBI75899  Penstemon sudans Anthony Baniaga and R. Bomberger, R. Bomberger 2011-7-28 478 Lassen Lassen Natl Forst. Hwy 36, ca. 1/4 mi E of "Fredonyer Pass Winter OHV Parking Lot" Fredonyer Pass quad T29N R10E sec 2 NW of SW 1950 Comment
  SEINET5323638 Image available Penstemon sudans G. Schoolcraft 1998-7-8 2752 Lassen Along Hwy 139 about 3 mi. n. os Susanville. 1402 Comment
  CHSC49042  Penstemon venustus Vernon Oswald 1986-7-22 2219 Lassen Hwy. 36, ca. 1 mi ne of Fredonyer Pass. 1706 Comment
  SEINET12335380  Penstemon venustus K. A. Vincent 1987-1 4500 Lassen Sierra Nevada, SE side of Fredonyer Butte, N side of CA 36 ca 11.5 mi WSW of Susanville 1585 Comment
  JEPS107689  Perideridia bolanderi Lowell Ahart, John Dittes 2005-6-1 11916 Lassen Along a small wash, on the east side of a poor road, Long Valley, about 4 1/2 miles (air) north of the intersection of Scott Road and Highway 70, 6.0 miles (air) northwest of Hallelujah Junction 1425 Comment
  CHSC64859  Perideridia bolanderi subsp. bolanderi Vernon H. Oswald; Lowell Ahart 1995-6-19 6900 Lassen Modoc Plateau. Between Litchfield and Rravendale on Smoke Creek Ranch Rd., 7.6 mi e of Hwy. 395. 1444 Comment
  NY1102238  Perideridia bolanderi subsp. bolanderi W. W. Eggleston 1911-5-29 6704 Lassen Vicinity of Doyle Station Comment
  UC1123141  Perideridia bolanderi subsp. bolanderi A. Simontacchi 1940-6-11 846 Lassen 3.7 mi sse Black Mtn.; Lassen National Forest, Halls Flat Quadrangle Comment
  SEINET10545979  Perideridia bolanderi subsp. bolanderi Paul Gallian, David B. Dunn 1971-6-2 Gallian 506 Lassen 6 mi. N of Hallelujah Jct. on U.S. Hwy 395, in Artemisia tridentata, Pinyon pine, Jeffery pine along highridge and in sandy wash. 1402 Comment
  CHSC105249  Perideridia lemmonii Lowell Ahart; John Dittes 2010-7-31 16991 Lassen On the south side 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
  OBI77201  Persicaria amphibia Anthony Baniaga 2011-7-23 517 Lassen Lassen NF. Poison Lake. Poison Lake quad T32N R7E sec 4 1707 Comment
  CAS-BOT-BC413523  Persicaria amphibia John Thomas Howell 1975-7-23 51405 Lassen Along Hwy. 395 between Johnstonville and Janesville 1280 Comment
  CHSC704  Phacelia adenophora A. Santos 1946-6-20 Lassen Grasshopper Valley. 1615 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
  HSC28828  Phacelia adenophora D. H. Norris, Thomas W. Nelson, S. Dowty 1971-6-22 19305 Lassen Along Hwy. 395, 4 mi. E of Standish 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
  RSA293371  Phacelia adenophora Reino Alava 1957-7-5 1136 Lassen 4.8 miles south of Ravendale on Highway 395. Comment
  UC1088434  Phacelia adenophora Peter H. Raven and Otto T. Solbrig 1958-6-17 13281 Lassen 5.7 mi s Ravendale Comment
  UC1226488  Phacelia adenophora Arthur Cronquist and Arthur H. Holmgren 1959-6-17 8479 Lassen along roadside 1 mi s Ravendale (40 mi ne of Susanville) 1615 Comment
  UC1401312  Phacelia adenophora D. B. Dunn 1956-7-3 11917 Lassen on hwy 395 31 mi ne Johnstonville (n side of flats) Comment
  UC1483800  Phacelia adenophora G. Schoolcraft 1980-5-30 248 Lassen along Hwy 395 n Mud Flat; Secret Valley Area 1359 Comment
  UC1603542  Phacelia adenophora Arnold Tiem, Margaret Williams, and Jan Nachlinger 1988-6-2 11701 Lassen on hwy 395 3.4 road mi n Wendel road (from Susanville to Alturas, s side of mt., w of hwy); Shaffer Mt. 1386 Comment
  UC735114  Phacelia adenophora Lincoln Constance 1946-7-3 3100 Lassen 16 mi w Termo; Grasshopper Valley 1676 Comment
  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
  UC1537532  Phacelia hastata Gordon H. True 1936-6-27 566 Lassen Hot Spring Mountain 1676 Comment
  CHSC14192  Phacelia hastata subsp. hastata M. S. Taylor 1974-6-28 274 Lassen Scattered on w shore of Pelican Point in Eagle Lake, ca. 13 mi nw of Susanville. 1524 Comment
  CHSC29888  Phacelia hastata subsp. hastata Robin L. Ondricek 1978-8-9 121 Lassen 0.1 mi w of intersection with road which passes Colman Lake. 1889 Comment
  HSC82200  Phacelia heterophylla Thomas W. Nelson, Jane P. Nelson 1980-7-6 6055 Lassen Along Modoc Nation Forest Rd. 2 mi. NE of Ash Creek Campground 1524 Comment
  CHSC91193  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
  RSA122631  Phacelia heterophylla subsp. virgata L. R. Short 1936-6-30 S- 463 Lassen Burgess Spr. Exp. Range. 1817 Comment
  JEPS17612  Phacelia humilis Rimo Bacigalupi with G. Thomas Robbins 1955-7-20 5405 Lassen 4.4 mi s Patterson Ranger Station (s end of mts., e edge of meadow); Modoc Nat. Forest, Warner Mts., Long Valley Meadow 2057 Comment
  UC24377  Phacelia humilis Mrs. C. C. Bruce June 1898 2191 Lassen Susanville Antelope hills Comment
  POM266183  Phacelia inundata J. T. Howell 1934-7-8 s.n. Lassen Spaldings Resort; Eagle Lake Comment
  CHSC5265  Phacelia linearis J. Wolf 1946-6-20 Lassen Eagle Lake. Grasshopper Valley. 1624 Comment
  CHSC80208  Phacelia linearis Jeanne Boze 1981-6-13 117 Lassen On northeast slope of Gallatin Peak. 1981 Comment
  JEPS2134  Phacelia linearis J. Burtt Davy Jun 17 1897-Jun 24 1897 Lassen near Chat; Honey Lake Valley Comment
  POM73492  Phacelia linearis Marcus E. Jones 1897-6-28 s.n. Lassen Top of Diamond Mt., Susanville, Perkin's Ranch. 2226 Comment
  RSA428037  Phacelia linearis Rockwell 1925-7-1 s.n. Lassen Eagle Lake Comment
  UCD150392  Phacelia linearis William Anderson 1963-6-2 s.n. Lassen Eagle Lake. Comment
  NY1056499  Phacelia lutea var. lutea M. J. Williams 1986-5-12 86- 21 --1 Lassen Smoke Creek Road, east of Highway 395 1448 Comment
  CHSC23109  Phacelia ramosissima Robert A. Schlising 1974-6-25 3149 Lassen East side of Eagle Lake, just south of Eagle Lake Field Station; basaltic rocks from Black Mt. lava flow near Bly Tunnel. Comment
  CHSC29886  Phacelia ramosissima var. eremophila Robin L. Ondricek 1978-8-2 109 Lassen In moss covered basalt on top of the ridge se of ELFS. 1609 Comment
  OBI82828  Phacelia ramosissima var. eremophila Robert L. Johnson, Mikel R. Stevens 2015-7-10 3931 Lassen 0.1 rd mi E of jct with Hwy 395 on Standish Buntingville Rd (A3). Buntingville. Both sides of rd.; 0 1261 Comment
  CHSC59552  Phacelia ramosissima var. ramosissima M> Meyer 1980-7-8 514 Lassen Amongst rocks (lg.) and junipers on top of Grasshopper Ridge. 1724 Comment
  NY1057982  Phacelia thermalis H. D. D. Ripley 1943-6-15 5761 Lassen Smoke Creek, northeast of Viewland 1341 Comment
  SEINET3091880 Image available Phacelia thermalis Arnold Tiehm, Raymond Evans, James Young. 1984-6-7 8595 Lassen Flats on the Northwest side of Shaffer Mountain, 9 air miles North-northwest of Litchfield. 1372 Comment
  UC710908  Phacelia thermalis C. L. Hitchcock 1940-5-26 6641 Lassen 1 mi w Bieber; floodplain of Pitt River Comment
  CHSC66740  Phalaris arundinacea Vernon H. Oswald; Lowell Ahart 1996-8-1 8108 Lassen Mountain Meadows Reservoir SW of Westwood. On the shore of the reservoir NE of Indian Ole Dam. 1539 Comment
  CAS-BOT-BC232853  Phlox A. M. Vollmer; L. Beane 1953-7-1 55 Lassen Along Halls Flat road, beginning 6 miles W of Susanville to McArthur 1554 Comment
  UC23928  Phlox austromontana M. S. Baker and Frank Nutting 1894-7-12 Lassen Pine Creek Comment
  UC106950  Phlox diffusa T. S. Brandegee 1892-7-2 Lassen Susanville Comment
  SEINET11263184  Phlox diffusa Barbara Ertter 1990-5-13 8964 Lassen McCoy Road N of Westwood, 3 miles from junction with A21, ca 6 airmiles N of Westwood.; 0 1676 Comment
  JEPS91153  Phlox douglasii subsp. rigida Dean W. Taylor 1974-6-14 3715 Lassen Poison Lake, on Hwy 44 ca. 2 miles W from the junction with Pittville Road 1615 Comment
  RSA647574  Phlox longifolia Marion P. Harthill 1971-6-21 227 Lassen Ravendale Comment
  CHSC36447  Phlox stansburyi Susan H. Euing 1982-6-4 1 Lassen Ca. .5 mi e of Murrers Upper Meadow, rd along e edge. 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
  POM94709  Phoenicaulis cheiranthoides Marcus E. Jones 1897-6-28 s.n. Lassen Top of Diamond Mt. Susanville. Perkin's Ranch. 2226 Comment
  UC465860  Phoradendron densum Franklin P. Nutting 1900-7-6 Lassen s. side Dixey Mts. Comment
  CDA33273  Phyllodoce breweri Margaret Bellue 1938-8-1 Lassen Lassen National Park: Bumpas Hell 0 Comment
  CHSC6220  Pinus contorta subsp. murrayana P. Balch 1955-7-3 Lassen Eagle Lake Resort. 1615 Comment
  SEINET11610645  Pinus lambertiana David Charlet 1996-7-8 2291 Lassen Diamond Mts; Sierra Nevada Janesville Grade, Great Basin drainage (Honey Lake) 1859 Comment
  CHSC21478  Pinus monticola M. S. Taylor 1975-7-16 841 Lassen On trail between Echo Lake and Summit Lake, Lassen National Park. 2133 Comment
  CHSC84893  Pinus ponderosa L. P. Janeway; B. Castro 2003-10-5 8005 Lassen High Cascade Range. Cone Lake and trailhead parking area (trail 1.3 km southwest into Caribou Wilderness Area). 2055 Comment
  RSA518540  Pinus ponderosa George K. Helmkamp 1990-10-4 12 Lassen South of Susanville in Plumas National Forest; north of Milford Pass. 1463 Comment
  SEINET12521273  Pinus ponderosa var. ponderosa J. Mapes s.n. Lassen Susanville Peak Area. NW corner of Township Comment
  CAS-BOT-BC227994  Plagiobothrys Ella Dales Cantelow 1941-5-22 3474 Lassen 5 miles W of Susanville, State Highway 36 Comment
  POM204143  Plagiobothrys bracteatus J. T. Howell 1934-7-10 12540 Lassen Patterson Flats Comment
  CHSC117271  Plagiobothrys cusickii Lowell Ahart; John Dittes 2016-7-15 21212 Lassen About 300 yards west of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1261 Comment
  JEPS121292  Plagiobothrys cusickii Lowell Ahart, John Dittes 2013-7-22 18870 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
  RSA0105587  Plagiobothrys cusickii Lowell Ahart, John Dittes 2013-7-22 18870 Lassen 10 yards south of the man made pond, about 140 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CAS-BOT-BC224973  Plagiobothrys hispidulus John Thomas Howell 1934-7-10 12549 Lassen Long's [Longs] Well Comment
  JEPS28658  Plagiobothrys hispidulus George W. Gillett 1957-7-21 860 Lassen 300 yd n trail summit (Juniper Lake-Cameron Meadow trail); Lassen Volcanic National Park 2118 Comment
  RSA0001862  Plagiobothrys humifusa Marcus E. Jones 1897-6-18 s.n. Lassen Chat. [also Chats, a former settlement] 1524 Comment
  UC1483869  Plagiobothrys leptocladus G. Schoolcraft 1980-5-7 223 Lassen n shore Honey Lake Island; n shore Honey Lake Island 1219 Comment
  RSA128304  Plagiobothrys mollis P. H. Raven, Otto T. Solbrig 1958-6-17 13258 Lassen Along U.S. Hwy 395, 7.1 miles W of Standish. Comment
  JEPS119646  Plagiobothrys mollis var. mollis Lowell Ahart, John Dittes 2012-7-9 18283 Lassen Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. Comment
  JEPS94124  Plagiobothrys tenellus Vernon H. Oswald and Lowell Ahart 1998-5-22 9093 Lassen Hwy. 395 at an intermittent drainage crossing the rd. 2.3 mi. s. of Milford 1255 Comment
  SBBG19323  Plagiobothrys torreyi C. B. Hardham 1961-6-17 7509 Lassen Baxter Crk, S of Susanville 1676 Comment
  JEPS103179  Plantago lanceolata G. Schoolcraft 2000-6-5 2897 Lassen Hwy 395 and Johnstonville Road near Susanville Airport 1310 Comment
  POM260454  Plectritis congesta subsp. brachystemon C. Leo Hitchcock 1940-5-26 6604 Lassen Lava beds ca 12 miles north of Fall River Mills (Shasta Co.) on Fall River. 1372 Comment
  UC100821  Plectritis macrocera unknown 1890-1 Lassen Milford Comment
  UC1924225  Plectritis macrocera Debra Valov 2004-6-8 2004249 Lassen Bieber; off County A2 c. 8 km east of Hwy 299 1274 Comment
  CAS-BOT-BC326713  Pleiacanthus spinosus Gordon H. True 1973-8-22 7658 Lassen North shore of Honey Lake ca. 5 miles east of Janesville and just west of Hartson Reservoir Comment
  CAS-BOT-BC261046  Poa Clarence R. Quick 1961-6-21 61 -30 Lassen Adjacent to Road 21, Blacks Mountain Experimental Forest northeast of Lassen Peak 1798 Comment
  UCD143647  Poa George A. Fischer; Irwin H. Johnson 1933-7-14 F 245 Lassen Lassen Nat'l Forest; Patterson Flat. 1737 Comment
  UC1136987  Poa X fibrata George A. Fischer and Irwin H. Johnson 1933-7-14 F 245 Lassen Patterson Flat; Lassen Nat'l Forest 1737 Comment
  CAS-BOT-BC255679  Poa bolanderi Clare B. Hardham 1971-8-22 18912 Lassen Diamond Mountain 2133 Comment
  CAS-BOT-BC227203  Poa bulbosa Barbara T. Keller 1974-5-7 1265 Lassen Along highway 395 about 5 miles west of Hurlong, 1/4 mile south of Honey Lake Comment
  CHSC36503  Poa bulbosa Theresa Costa 1982-6-2 22 Lassen Ca. 3.5 mi e jct Hwy I39 and Ravendale Rd, ca 5 yd n Ravendale Rd. Creekside. Comment
  HSC10643  Poa bulbosa D. E. Anderson 1969-7-5 5000 Lassen Freedonyer Pass, 15 mi. W of Susanville 1752 Comment
  RSA450966  Poa bulbosa Barbara Shervanick 1974-5-7 1265 Lassen Highway 396, just south of Milford; Cascade Mountain Range 1372 Comment
  SACT001821  Poa bulbosa Herbert Mason 1949-5-29 Lassen Highway 299. In marsh. Comment
  UC1024887  Poa bulbosa Leo Whitney 1935-5-29 3129 Lassen Bieber 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
  SEINET10868155  Poa bulbosa David B. Dunn, Billy Joe Cox 1971-6-2 Dunn 17757 Lassen Approx. 12 mi S of Adin on Calif. Hwy 139, in basalt & clay; along edge of road on rolling knol, in Artemisia-Juniper assoc. 1372 Comment
  UCD90920  Poa cusickii Leo Whitney 1935-6-19 3265 Lassen Camp 10, Fruit Grower's Supply Company, Lassen National Forest. Comment
  UC1024837  Poa cusickii subsp. cusickii Leo Whitney 1935-6-10 3219 Lassen Camp 10 Fruit Grower's Supply Company Comment
  UC1533157  Poa cusickii subsp. cusickii G. Schoolcraft 1986-6-25 1644 Lassen 3 mi nw Termo 1615 Comment
  RSA129249  Poa palustris H. S. Yates 1936-8-12 6079 Lassen McKenzie Meadows 1524 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
  UC1037135  Poa pratensis subsp. pratensis Leo Whitney 1935-5-27 3126 Lassen Bieber Comment
  UCR244104  Poa pratensis subsp. pratensis Jim Andre, G. L. Clifton 1993-6-9 19698 Lassen Foothills of Sierra Nevada Mtns., Honey Lake Valley, c. 5 mi. west of Doyle (at U.S. 395), just inside Plumas NF boundary 1631 Comment
  JEPS126492  Poa secunda Jennifer Mueller, A. Brambila July 6-15, 2016 CA 370 -227 Lassen Head south through Eagleville, CA to Bare Ranch. Comment
  JEPS126508  Poa secunda Alejandro Brambila, Michael Dolan 2016-7-7 CA 320 -157 Lassen Ash Valley road 1 mi past Holbrook Reservoir. Comment
  RSA101643  Poa secunda D. D. Keck 1944-7-8 5449 Lassen 1.5 mi W. of Susanville, on rim of plateau overlooking Susan River canyon 1341 Comment
  CAS-BOT-BC236254  Poa secunda subsp. juncifolia David D. Keck 1944-7-8 5447 Lassen 2 miles E of Westwood, in meadow leading down to Mountain Meadows Reservoir 1524 Comment
  CHSC77270  Poa secunda subsp. juncifolia G. Schoolcraft 1994-7-6 2350 Lassen About 1.5 miles NE of Red Rock Lake. 2042 Comment
  UC1037128  Poa secunda subsp. juncifolia Leo Whitney 1935-6-19 3259 Lassen Camp 10 Fruit Grower's Supply Company; Lassen Nat'l Forest Comment
  UC718010  Poa secunda subsp. juncifolia David D. Keck 1944-7-8 5449 Lassen 1.5 mi w Susanville (rim of plateau overlooking Susan River canyon); Sierra Nevada 1341 Comment
  UCD92368  Poa secunda subsp. juncifolia J. B. Davy 17-24 Jun 1897 s.n. Lassen Honey Lake Valley. Comment
  UCD92385  Poa secunda subsp. juncifolia William Martin 1963-7-18 s.n. Lassen 3-4 miles S of Doyle. Long Valley Creek, Rowland Ranch. Comment
  UCD92393  Poa secunda subsp. juncifolia C. C. Rowland 1944-7-11 s.n. Lassen Doyle. Comment
  UCD92396  Poa secunda subsp. juncifolia A. H. Shunk 1923-7-28 s.n. Lassen Madeline. Comment
  UCD92427  Poa secunda subsp. juncifolia L. D. Whitney 1935-6-26 s.n. Lassen Near Fruit Grower's Supply Co., Camp 10. Comment
  CHSC23556  Poa secunda subsp. secunda W. O. Baum 1971-7-5 12 Lassen E slope of Gallatin Peak. 1981 Comment
  CHSC30521  Poa secunda subsp. secunda Sandra C. Morey 1980-4-26 78 Lassen Hwy. 139, ca. 1.0 mi. s of jctn. with Hwy. 299. 1284 Comment
  SEINET7294129 Image available Poa secunda subsp. secunda John Thomas Howell, Gordon H. True; Margaret Williams 1973-1 49197 Lassen In open yellow pine forest, Elysian Valley northwest of Janesville. 1326 Comment
  UC1024839  Poa secunda subsp. secunda Leo Whitney 1935-6-10 3217 Lassen Camp 10 Fruit Grower's Supply Company; Lassen Nat'l Forest Comment
  UC1024933  Poa secunda subsp. secunda Leo Whitney 1935-6-28 3344 Lassen Bieber Comment
  UC1132881  Poa secunda subsp. secunda A. Simontacchi 1940-5-14 719 Lassen 10.2 mi e Coyote Spring; Lassen Nat'l Forest, Halls Flat Quadrangle 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
  CHSC60907  Pogogyne floribunda Vernon H. Oswald; Lowell Ahart 1993-7-8 5675 Lassen N side of 34N12 just E of the railroad at Halls Flat Well, ca. 11 mi (air) NNW of Poison Lake. 1737 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
  UC449772  Polemonium occidentale Franklin P. Nutting 1894-7-28 Lassen Bridge Creek Bridge Creek (Northern California) Comment
  CHSC29868  Polyctenium fremontii Robin L. Ondricek 1978-6-20 66 Lassen At edge of tree line around Mahogany Lake; s of Eagle Lake. 2057 Comment
  CHSC532  Polyctenium fremontii 1944-6-30 Lassen Grasshopper Valley. 1624 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
  RSA340001  Polyctenium fremontii Gary Schoolcraft 1984-7-9 1287 Lassen South of Fillman Road, 3.8 miles west on Hwy 395 1610 Comment
  NY661121  Polyctenium williamsiae B. Corbin 2002-6-4 1078 Lassen Mud Flat-south end, East side of Highway 395. 1347.2 Comment
  SEINET5326413  Polyctenium williamsiae A. Tiehm, J. Nachlinger, M. J. Williams 1988-1 11703 Lassen On highway 395 from Susanville to Alturas, 6.6 road miles N of the Wendel Road. 1347 Comment
  HSC63730  Polygala subspinosa Teresa Prendusi 1980-5-19 Lassen Slope above Secret Creek Canyon 1433 Comment
  UC1101132  Polygonum amphibium var. stipulaceum Verne Grant and Irving Schneider 1947-9-5 8369 Lassen by Sam Webb's Place (Spaulding) (nw shore of lake); Eagle Lake Comment
  CHSC117541  Polygonum aviculare Lowell Ahart; John Dittes 2016-7-13 21133 Lassen 20 yards south of the overflow, about 30 yards north of the dam, 180 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. 1289 Comment
  CAS-BOT-BC413932  Polygonum aviculare subsp. aviculare John Thomas Howell 1973-7-10 49796 Lassen Susanville 1295 Comment
  UC1562677  Polygonum davisiae Barbara Ertter 1988-7-25 7863 Lassen ridge ca 1.5 mi e Diamond Peak (ca 10 air mi due s of Susanville); Diamond Mts. 2286 Comment
  CAS-BOT-BC414491  Polygonum douglasii John Thomas Howell; Gordon H. True; Wayne Dakan 1974-7-30 50683 Lassen Slope south and southeast of Diamond Mt. 2286 Comment
  CHSC64889  Polygonum douglasii subsp. johnstonii Vernon H. Oswald; Lowell Ahart 1995-6-19 6880 Lassen Between Litchfield and Ravendale on Smoke Creek Ranch Rd., 0.3 mi e of Hwy. 395. In a shallow wash. 1383 Comment
  CHSC66255  Polygonum douglasii subsp. johnstonii Vernon H. Oswald; Lowell Ahart 1996-6-24 7864 Lassen Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake. Locally common in open woods on the W side of the meadow ca. 0.4 mi S of the cabins. 1633 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
  CAS-BOT-BC419857  Polygonum polygaloides subsp. confertiflorum John Thomas Howell 1976-7-20 52031 Lassen About 5 miles west of Fredonyer Pass near confluence of Susan River and Willard Creek 1432 Comment
  UC1258489  Polygonum polygaloides subsp. confertiflorum G. Schoolcraft 1980-7-10 299 Lassen along Rice Canyon Rd in grazing enclosure Bureau of Land Management 1548 Comment
  UC1594529  Polygonum polygaloides subsp. confertiflorum Vernon H. Oswald and Lowell Ahart 1992-7-16 5104 a Lassen on s side of Hwy 44 1.2 mi se County Rd. A21 (between Old Station and Susanville); Long Lake 1745 Comment
  CHSC29856  Polygonum polygaloides subsp. kelloggii Robin L. Ondricek 1978-7-5 81 Lassen In grass and among trees along the ne edge of Mahogany Lake. 2057 Comment
  CHSC4773  Polygonum polygaloides subsp. kelloggii R. Carter 1967-6-27 559 Lassen Ca. 10 yds. off n side of rd., 1.75 mi w of Eagle Lake Biology Station. 1584 Comment
  CHSC61056  Polygonum polygaloides subsp. kelloggii Vernon H. Oswald; Lowell Ahart 1993-8-3 5749 Lassen Cooper Swamp located E of Silver Lake just E of the Caribou Wilderness, ca. 13 mi (air) N of Lake Almanor. In small patches of more of less bare ground along the E side of the swamp. 1932 Comment
  CHSC6231  Polygonum polygaloides subsp. kelloggii R. Gein 1946-6-12 Lassen Webb's Camp, Eagle Lake. 1554 Comment
  UC1136189  Polygonum polygaloides subsp. kelloggii A. Simontacchi 1940-6-4 807 Lassen 14.8 mi w Harvey Mtn. Lookout; Lassen National Forest, Halls Flat Quadrangle Comment
  UC1136191  Polygonum polygaloides subsp. kelloggii A. Simontacchi 1940-5-21 760 Lassen 4.1 mi sse Blacks Mtn.; Lassen National Forest, Halls Flat Quadrangle Comment
  CAS-BOT-BC419904  Polygonum polygaloides subsp. kelloggii John Thomas Howell; Gordon H. True; Wayne Dakan 1974-7-30 50649 Lassen Slope south and southeast of Diamond Mt. 2286 Comment
  CAS-BOT-BC420163  Polygonum sawatchense subsp. sawatchense John Thomas Howell 1934-6-14 12148 Lassen Near Lost Lake, Warner Mts. 2438 Comment
  UC6701  Polygonum sawatchense subsp. sawatchense M. S. Baker and Frank Nutting 1894-7-3 Lassen Dixey Valley Comment
  HSC97193  Polygonum spergulariiforme L. Ahart 2003-8-17 10515 Lassen E side of Hwy. 36, 1/4 mi. SW of the Susan River, 8 air mi. SW of Susanville 1434 Comment
  CAS-BOT-BC420977  Polygonum spergulariiforme Clarence R. Quick 1964-7-29 64 -87 Lassen Blacks Mt. Experimental Forest 1798 Comment
  CAS-BOT-BC232547  Polypogon monspeliensis Louella Bass 1982-6-20 s.n. Lassen 0.5 mile W of Karlo Comment
  JEPS88211  Polypogon monspeliensis Vernon H. Oswald and Lowell Ahart 1996-6-17 7791 Lassen ca. 7 mi. w. Susanville (Bizz Johnson Trail accessed at Devils Corral Trailhead located off Hwy. 36, trailside just s.e. of Hwy 36 bridge spanning the Susan R.); Modoc Plateau, Bizz Johnson Trail 1402 Comment
  RSA719889  Polypogon monspeliensis Michael A. Vincent, K. Levings 2006-7-29 12915 Lassen Along Rt 395, 46.9 road miles SE of Johnstonville, 13.9 miles N of Sierra County line. Comment
  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
  CHSC29892  Porterella carnosula Robin L. Ondricek 1978-7-5 87 Lassen The ne edge of Mahogany Lake between the water and the trees. 2057 Comment
  OBI75891  Porterella carnosula Anthony Baniaga and D. Lepley, D. Lepley 2011-8-17 502 Lassen Lassen Natl Forest. Unnamed ephemeral pool, E of Silver Bowl Camp. Bogard Buttes quad. T31N R7E sec 35 SW of SE 1905 Comment
  SEINET10460824  Porterella carnosula Peter H. Raven 1958-6-17 Raven 13294 Lassen Adobe fields along United States Highway 395, 4.8 miles south of Madeline Comment
  CHSC7716  Portulaca oleracea Beverley J. Wise 1969-6-3 6 Lassen Susanville, 833 Mark St. 1310 Comment
  CHSC4839  Potamogeton 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
  UCR228122  Potamogeton diversifolius R. F. Thorne, Larry E. DeBuhr 1975-8-22 47201 Lassen Modoc Plateau, Hwy 395, c. 5 mi north of Madeline [at Smith Reservoir] and c. 5.5 mi south of Modoc Co. line 1616 Comment
  SEINET4689828  Potamogeton foliosus var. foliosus B. L. Wilson, D. Lytjen 2005-7-28 11482 Lassen Deep creek near confluence with a smaller stream 1359 Comment
  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
  UCD170231  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. 1963 Comment
  UC1100076  Potamogeton pectinatus Verne Grant, Irving Schneider 1947-7-31 8201 Lassen sw of Madeline (George Williams' Ranch); Madeline Plan Comment
  SEINET3893473  Potamogeton pusillus Arnold Tiehm, Gary Schoolcraft 1984-8-14 9247 Lassen Buckhorn Reservoir on the south side of Buckhorn road to Ravendale, about 6 road miles west of the state line.; 0 1698 Comment
  CHSC65370  Potamogeton zosteriformis Vernon H. Oswald; Beth Corbin, Mike Dolan 1995-8-26 7220 Lassen Warner Mtns. Blue Lake located ca. 13 mi SE of Likely. Along the W shore of the lake. 1859 Comment
  CAS-BOT-BC143401  Potentilla John Thomas Howell 1976-7-20 52022 Lassen Along Willard Creek near its confluence with Susan River, about 5 miles west of Fredonyer Pass 1432 Comment
  OBI77552  Potentilla biennis Anthony Baniaga 2011-7-23 460 Lassen Lassen Natl Forest. Poison Lake. Poison Lake quad. T32N R7E sec 4 1700 Comment
  SDSU9114  Potentilla biennis D. F. Howe 1964-7-31 3901 Lassen Parsnip Creek, Warner Mtns, Modoc National Forest. 1829 Comment
  CHSC27742  Potentilla glandulosa subsp. ashlandica N. E. Heiken 1978-7-5 76 Lassen S of Eagle L., E shore of Mahogany L. 2060 Comment
  CHSC99535  Potentilla gracilis var. fastigiata Lowell Ahart; John Dittes 2008-6-20 14954 Lassen In meadow, about 200 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. 1263 Comment
  CAS-BOT-BC158477  Potentilla gracilis var. gracilis Alice Eastwood; John Thomas Howell 1940-6-11 7997 Lassen Bieber 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
  CHSC7046  Potentilla millefolia E. L. Williams 1969-4-28 18 Lassen Meadow on Highway 32, 58 mi toward Chester. 259 Comment
  CAS-BOT-BC158514  Potentilla millefolia G. D. Hanna 1958-9-22 s.n. Lassen Road from Caribou Lake to Cone Lake Comment
  CHSC105253  Poteridium annuum Lowell Ahart; John Dittes 2010-7-31 17003 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
  CHSC117197  Poterium sanguisorba Lowell Ahart; John Dittes 2016-6-7 20998 Lassen On the east side of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. 1289 Comment
  JEPS62498  Prunella vulgaris var. lanceolata Brown and Wieslander 1922-7-30 23 Lassen Martin Sprs Eagle Lake; , Martin Sprs Comment
  SD149134  Prunella vulgaris var. lanceolata John Thomas Howell, Gardon H. True and Margaret Williams 1973-6-28 49443 Lassen Elysian Valley, west of Janesville. 1326 Comment
  CHSC106677  Prunus andersonii Zachary Garcia 2008-5-3 Lassen Fort Sage Mtns. OHV Trailhead and Trail to Indian Springs. 1439 Comment
  CHSC71098  Prunus andersonii Vernon H. Oswald; Lowell Ahart 1998-5-22 9119 Lassen Road to ORV parking area in Fort Sage Mtns. 1.1 mi east of Fort Sage Rd., ca. 5 mi NNE of Doyle. 1447 Comment
  RSA0028244  Prunus andersonii John F. Emmel 1994-7-18 1335 Lassen Long Valley; between Hwy. 395 and railroad tracks at south edge of Doyle. 1305 Comment
  RSA0037144  Prunus andersonii B. Villegas 2011-3-26 s.n. Lassen Hallelujah Junction. NE corner of HWY 395 & HWY 70 intersection. Comment
  SEINET10542398  Prunus andersonii Paul Gallian, David B. Dunn 1971-6-2 Gallian 461 Lassen 6 miles n of hallelujah junction on us hwy 395, in artemisa tridentata, pinyon Pine, jeffrey pine along high ridge and in sandy wash 1402 Comment
  UCD113460  Prunus fasciculata T. I. Storer 1932-7-18 s.n. Lassen 4.5 miles northwest of Doyle. 1310 Comment
  CHSC6259  Prunus virginiana var. demissa R. Gein 1946-6-11 Lassen Eagle Lake. On Pine Creek. 1580 Comment
  CHSC64853  Prunus virginiana var. demissa Vernon H. Oswald 1995-6-26 6931 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
  UCD113534  Prunus virginiana var. demissa W. Robert Powell 1985-7-30 3080 c Lassen about 3 miles WNW of Susanville on narrow flood plane of Piute Creek. 1402 Comment
  CHSC13511  Pseudognaphalium thermale J. Pitts 1972-6-29 293 Lassen 3 mi se of Five Points on e side of road. Comment
  UCD91501  Pseudoroegneria spicata Beecher Crampton 1954-7-5 2053 Lassen Along Hwy 36, 4.5 miles west of Susanville. 1432 Comment
  JEPS124656 Image available Psilocarphus brevissimus var. brevissimus Laurel Loeblich 1964-7-1 66 Lassen Collected 17.6 mi. north of Susanville on highway 139 in ditch on west side of road about 2 meters from road. Comment
  SJSU10070  Psilocarphus tenellus L. Hooker 1965-7-12 Lassen by Hwy 139 c. 8.3 mi NE of Susanville 1645 Comment
  UCD136178  Pteridium aquilinum var. pubescens John Thomas Howell; Gordon H. True 1973-5-12 49175 Lassen Sierra Nevada, Elysian Valley northwest of Janesville. 1325 Comment
  CAS-BOT-BC453500  Pterospora andromedea John Thomas Howell; Gordon H. True 1973-7-31 50024 Lassen Sierra Nevada, on road from Janesville to Thompso Peak, Diamond Range 1737 Comment
  CDA38860  Pterospora andromedea H. Wilkerson & W. F. Cruickshank Sep 1964 s.n. Lassen Hayden Hill. 0 Comment
  SEINET3823221 Image available Pterospora andromedea A. A. Heller 1938-7-28 15302 Lassen About 2 miles east of Westwood in leaf mold. Transition Life Zone 1524 Comment
  CHSC99494  Puccinellia lemmonii Lowell Ahart; John Dittes 2008-6-20 14967 Lassen Saline area, about 10 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. 1263 Comment
  RSA0036998  Puccinellia lemmonii Lowell A. Ahart, John Dittes 2008-6-20 14967 Lassen About 10 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. 1263 Comment
  CDA32666  Puccinellia lemmonii Gary Schoolcraft 2000-6-19 2906 Lassen Flat southeast of Ravendale BLM Fire Station. 0 Comment
  JEPS103184  Puccinellia nuttalliana G. Schoolcraft 2000-6-12 2908 Lassen Cold Spring Reservoir at NE end of Madeline Plains 1645 Comment
  CDA32668  Puccinellia nuttalliana M. D. Collins Jun 1923 Lassen Edge of Honey Lake 0 Comment
  SEINET10833156  Purshia tridentata David B. Dunn, Billy Joe Cox 1971-6-2 Dunn 17784 Lassen 6 miles n of hallelujah junction on us hwy 395, in artemesia tridentata, pinyon Pine, jeffery pine along high ridge and in sandy wash 1402 Comment
  CAS-BOT-BC147824  Purshia tridentata var. tridentata M. S. Taylor 1982-5-7 4431 Lassen Reno Junction on Hwy 70, just e of Beckwourth Pass 1524 Comment
  UC12841  Purshia tridentata var. tridentata Mrs. R. M. Austin and Bruce Jun 1898 2345 Lassen high mts. Comment
  CAS-BOT-BC462758  Pyrola dentata Louella Bass 1973-6-23 EU- 130 Lassen Elysian Valley 1325 Comment
  RSA0080608  Pyrola dentata Marcus E. Jones 1897-6-28 s.n. Lassen Diamond Mountain. Susanville. Perkin's Ranch. 1829 Comment
  RSA0084313  Pyrola picta Diana D. Jolles, Erik M. Beaston 2011-7-5 442 Lassen Lassen National Forest near area where Susan River flows through Clover Valley. Thinning unit near intersection of A-21 road and Silver Lake Road some miles south of Highway 44. 1784 Comment
  CHSC60880  Pyrrocoma carthamoides var. cusickii Vernon H. Oswald; Lowell Ahart 1993-7-8 5667 Lassen Pittville Rd. (Lassen 111, 36N01) 3.0 mi N of Hwy. 44, NE of Poison Lake. 1709 Comment
  UC1561924  Pyrrocoma hirta var. hirta Barbara Ertter 1987-7-25 7312 a Lassen Pine Creek Valley at junction of Bridge Creek Springs Road ca 22 airmiles nw Susanville; Pine Creek Valley 1737 Comment
  UC1584018  Pyrrocoma hirta var. lanulosa G. Schoolcraft 1990-8-1 2119 Lassen about 1 mi s Heath Reservoir 1737 Comment
  UC506929  Pyrrocoma hirta var. lanulosa George A. Fischer and Irwin H. Johnson 1933-7-14 F 242 Lassen Patterson R.S. Lassen National Forest, Patterson R.S. 1737 Comment
  RSA715949  Pyrrocoma lucida L. P. Janeway 2005-7-31 8512 Lassen Northern High Sierra Nevada. Diamond Mountains; Head of large flat dry meadow at head of Bird Creek; 0.8 km northeast of Meadow View Peak. 1960 Comment
  CDA18269  Pyrrocoma racemosa var. paniculata G. D. Barbe 1974-8-2 1934 Lassen Long Valley; Hallelujah Junction, northwest corner of jct of US Hwy 395 and Hwy 70. 1524 Comment
  RSA88088  Pyrrocoma racemosa var. paniculata J. T. Howell 1951-8-20 28227 Lassen Honey Lake Valley near Herlong 1280 Comment
  UC21043  Pyrrocoma racemosa var. paniculata J. Burtt Davy Jun 17 1897-Jun 24 1897 3380 Lassen Honey Lake Valley Comment
  CAS-BOT-BC94255  Quercus garryana Alice Eastwood; John Thomas Howell 1940-6-11 7966 Lassen Eastern Fall River Valley Comment
  JEPS41362  Quercus garryana James Griffin 1964-8-4 1272 Lassen along county road from Little Valley to Dixie Valley 1341 Comment
  UCD46633  Quercus kelloggii John Thomas Howell; Gordon H. True 1973-5-12 49159 Lassen Sierra Nevada. Elysian Valley. 1325 Comment
  UCSB12079  Quercus kelloggii Muller, Cornelius 1956-6-17 Lassen 6 1/2 mi. NW of Milford, 34 mi. SE of Buntingville along W shore of Honey Lake Comment
  OBI77065  Quercus palustris Anthony Baniaga 2011-10-15 516 Lassen Susanville. Lassen County superior court parking lot. Susanville quad T30N R12E sec 33 SW of SW 1280 Comment
  CHSC12437  Ranunculus Robert W. Severin 1969-6-20 1 Lassen 1 mile sw E.L.B.S. on west side of Murrer's Upper Meadow; along irrigation ditch. 1569 Comment
  JEPS55017  Ranunculus alismifolius var. alismifolius Leland S. Smith 1927-5-25 3 Lassen near Westwood Junction; Lassen Forest, Norval Flat 1747 Comment
  CHSC61174  Ranunculus alismifolius var. lemmonii Vernon H. Oswald; Lowell Ahart 1993-5-12 5380 Lassen Canal crossing Hwy. 44, 3.5 mi NW of A21 (to Westwood). On the N side of the road and on the E side of the canal. 1729 Comment
  CDA24294  Ranunculus aquatilis Gordon Leppig 1998-7-13 969 Lassen Modoc National Forest. Blue Lake Ranch. Comment
  HSC95453  Ranunculus aquatilis Gordon Leppig, Tony LaBanca 1997-6-29 539 Lassen Modoc National Forest, Blue Lake Ranch 1970 Comment
  UC1101365  Ranunculus aquatilis var. capillaceus Verne Grant and Irving Schneider 1947-7-30 8197 Lassen Tule Lake; w end Comment
  SEINET10536066  Ranunculus aquatilis var. capillaceus Mary Susan Taylor 1974-1 Taylor 282 Lassen Vicinity of Eagle Lake, ca. 13 mi NW of Susanville. Comment
  CHSC112752  Ranunculus aquatilis var. diffusus Lowell Ahart; John Dittes 2013-7-23 18891 Lassen Margins of a man made pond, about 150 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  RSA523410  Ranunculus cymbalaria var. saximontanus Rodney H. True 1936-6-26 544 Lassen Honey Lake Valley- Willow Creek Valley Road. 1524 Comment
  JEPS28454  Ranunculus flammula George W. Gillett 1957-7-22 872 Lassen Snag Lake Lassen Volcanic National Park (s shore) 1850 Comment
  SEINET10535979  Ranunculus occidentalis Mary Merello 1993-6-28 Merello 749 Lassen Lassen National Forest, Poison Lake. Along Hwy. 44 just south of the Hwy. 89, Hwy. 44 intersection. Open pine-scrub and wetlands around lake. Volcanic soils. 1700 Comment
  UCD96933  Ranunculus occidentalis Jack Major 1966-6-24 s.n. Lassen above Blue Lake, Warner Mountains, Modoc National Forest, northeastern Lassen County (ca. 18 miles airline southeast of Likely). 1905 Comment
  JEPS94133  Ranunculus testiculatus Vernon H. Oswald and Lowell Ahart 1988-5-22 9101 Lassen ca. 3 mi. n. Doyle (Hackstaff Rd. 1.0 mi. s. of Laver Crossing Rd., 0.2 mi. n. of Fort Sage Rd.) 1316 Comment
  JEPS94541  Ranunculus uncinatus Vernon Oswald and Lowell Ahart 1997-6-24 8613 Lassen 0.7 mi e of boundary of Lassen National Forest (s of Susanville on n side of Diamond Mountain, along Forest Road 29N43, 5.4 mi e of Gold Run Road (29N10)); Diamond Mountain, Forest Road 29N43 1889 Comment
  CHSC60392  Ranunculus uncinatus var. uncinatus Mary Ann Showers 1992-6-13 2539 Lassen Lassen Volcanic National Park. Meadow along trail from Snag Lake jct to Widow Lake. 1828 Comment
  CAS-BOT-BC362886  Ratibida columnifera John Thomas Howell 1974-7-9 50486 Lassen SW. of Wildcat Point, Eagle Lake 1554 Comment
  UCD135418  Ratibida columnifera G. Douglas Barbe 1974-8-20 1939 Lassen north end of the Glenn-Eagle airstrip, southwest corner of Eagle Lake, 0.8 mile north of Eagle Lake Resot. Comment
  JEPS127178  Rhaponticum repens Lowell Ahart, John Dittes 2016-7-15 21229 Lassen In Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. Comment
  UC1587100  Rhaponticum repens G. Schoolcraft 1991-7-31 2203 Lassen just n of Hall Spring; Shinn Mts. 1706 Comment
  SEINET5845254  Ribes C. G. Gulling 1905-1 1537 Lassen Big Meadows Comment
  CHSC7763  Ribes aureum Beverley J. Wise 1969-5-4 98 Lassen North shore of Leavitt Lake, south side Hwy 395. 1266 Comment
  CHSC99274  Ribes aureum var. aureum Lowell Ahart; John Dittes 2008-6-20 14950 Lassen About 300 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. 1263 Comment
  CHSC23566  Ribes cereum W. O. Baum 1971-6-28 40 Lassen E slope of Gallatin Peak at edge of fire trail. 1920 Comment
  HSC95270  Ribes inerme var. inerme Gordon Leppig 1998-7-12 947 Lassen Modoc National Forest, Blue Lake Ranch 1970 Comment
  UC1587075  Ribes roezlii G. Schoolcraft 1991-7-30 2191 Lassen n side Widow Mountain (Bear Spring) 1780 Comment
  SEINET177615 Image available Ribes velutinum M. E. Jones 1897-6-25 s.n. Lassen Susanville 1341 Comment
  UC1136911  Ribes velutinum L. R. Short and Wm. Gansberg 1936-7-9 S- 481 Lassen MDM, Burgess Spr. Exp. Range Lassen Forest 1783 Comment
  UC773883  Ribes velutinum L. R. Short and Wm. Gansberg 1936-7-9 S- 481 Lassen Burgess Spring Experiment Range Lassen Forest 1783 Comment
  SEINET10482959  Ribes velutinum Mary Susan Taylor 1974-1 Taylor 288 Lassen Vicinity of Eagle Lake, ca. 13 mi NW of Susanville. Comment
  CHSC23568  Ribes viscosissimum W. O. Baum 1971-6-21 32 Lassen E slope on fire trail on Gallatin Peak. 1920 Comment
  UC1523807  Ribes viscosissimum Gary Schoolcraft 1982-8-9 860 Lassen near Susanville; Diamond Mtn. 2011 Comment
  RSA0023959  Ribes viscosissimum Marcus E. Jones 1897-6-28 s.n. Lassen Top of Diamond Mt., Susanville, Perkin's Ranch. 2226 Comment
  CAS-BOT-BC363010  Rigiopappus leptocladus John Thomas Howell; Gordon H. True; Margaret Williams 1973-5-12 49205 Lassen Elysian Valley northwest of Janesville 1325 Comment
  CAS-BOT-BC363012  Rigiopappus leptocladus Doris Kildale Gillespie 1930-5-12 9341 Lassen 2 miles north of Susanville on road to Alturas Comment
  JEPS29198  Rigiopappus leptocladus Lauramay T. Dempster 1961-6-17 1672 Lassen Gold Run Creek about 4 mi sw of junction with Richmond Road (s of Susanville); Gold Run Creek Comment
  SEINET2054605 Image available 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 highway. 1386 Comment
  JEPS95976  Rorippa curvisiliqua Vernon H. Oswald and L. Ahart 1999-6-9 9758 Lassen Between Westwood and Susanville on Hwy 36 1.3 mi east of Fredonyer Pass: T29N R10E NW1/4 Sect. 22, 5400 ft elevation, mixed coniferous forest 1645 Comment
  CHSC117291  Rorippa curvisiliqua var. orientalis Lowell Ahart; John Dittes 2016-7-13 21115 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. 1289 Comment
  CHSC13796  Rorippa nasturtium-aquaticum Cathy Crittenden 1970-7-8 31 Lassen Lower Murrer's Meadow; by Willow Creek. 1463 Comment
  CHSC5023  Rorippa nasturtium-aquaticum L. G. Bennett 1967-6-24 45 Lassen Murrers Meadow, near Eagle Lake. 1493 Comment
  SEINET10448589  Rorippa obtusa Mary Susan Taylor 1974-7-8 Taylor 264 Lassen Ca. 1 mi N of Honey Lake, ca. 1 mi S of Standish, Honey Lake Wildlife Refuge. Comment
  CHSC117284  Rorippa palustris var. fernaldiana Lowell Ahart; John Dittes 2016-7-15 21218 Lassen Along a ditch west of the road, about 100 yards south of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC75481  Rorippa sinuata Vernon H. Oswald; Lowell Ahart 1999-6-9 9735 Lassen Hwy. 395 northeast of Susanville and north of Smoke Creek Ranch Rd. at Mud Flat. On the bank between the highway and the playa. 1348 Comment
  NY182160  Rorippa sinuata G. Schoolcraft 1989-6-6 1901 Lassen North end of Secret Valley west of Hwy. 395. 1350.3 Comment
  POM312442  Rorippa sinuata Verne Grant, Irving Schneider 1947-8-1 8226 Lassen Irrigation ditch running southwest into State Fish and Game nesting area on west end of Section 19, Madeline Plain. Comment
  UC1567407  Rorippa sinuata G. Schoolcraft 1989-6-6 1901 Lassen n end Secret Valley w Highway 395; n end Secret Valley 1350 Comment
  CHSC12463  Rosa woodsii subsp. ultramontana Robert W. Severin 1969-6-26 44 Lassen Springs area 1 mile north of Galatin Beach, 3 mi s of E.L.B.S. 1645 Comment
  JEPS45639  Rosa woodsii var. ultramontana W. L. Jepson 1918-8-3 7801 Lassen Honey Lake Valley 1219 Comment
  JEPS47284  Rosa woodsii var. ultramontana W. L. Jepson 1939-8-11 19372 Lassen Milford 1280 Comment
  CHSC23481  Rubus leucodermis Wayne O. Baum 1971-7-5 71 -84 Lassen E. slope of Gallatin Peak. 2072 Comment
  CHSC106088  Rumex acetosella Lowell Ahart; John Dittes 2010-7-31 17001 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
  CHSC117299  Rumex crispus Lowell Ahart; John Dittes 2016-7-13 21134 Lassen Along the west edge of the pond, 90 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. 1289 Comment
  HSC95219  Rumex crispus Gordon Leppig 1998-7-12 962 Lassen Modoc National Forest, Blue Lake Ranch 1970 Comment
  UC1191289  Rumex crispus Malcolm A. Nobs and S. Galen Smith 1949-8-20 1481 Lassen 1 mi n Doyle; Long Creek Comment
  CAS-BOT-BC433634  Rumex lacustris James Jokerst 1983-7-25 1891 Lassen Near Madeline Plains. 1614 Comment
  CHSC101061  Rumex paucifolius John Dittes 2008-5-22 1530 Lassen Modoc Plateau; ca. 15.3 air miles southeast of Adin, ca. 3.5 air miles east of Hayden Hill, ca 700 feet east of intersection of Hwy 139 and FS Road 36N02; alluvial terrace of Willow Creek. 482 Comment
  CHSC106224  Rumex paucifolius Arthur C. Barrett 1915-7-2 12 Lassen Laufman Ranger Station. 1463 Comment
  UC1542940  Rumex paucifolius G. Schoolcraft 1987-4-29 1689 Lassen Ash Valley RNA Ash Valley 1554 Comment
  UC6958  Rumex paucifolius Mrs. R. M. Austin Jun 1894 Lassen Willow Creek Valley Comment
  JEPS39934  Rumex salicifolius var. lacustris W. L. Jepson 1918-8-15 7997 Lassen Grasshopper Valley 1615 Comment
  UC1036083  Rumex salicifolius var. lacustris Annie M. Alexander and Louise Kellogg 1946-8-11 5152 Lassen 4 to 6 mi s Madeline Comment
  UC1136137  Rumex salicifolius var. lacustris E. Sawyer 1935-6-27 228 Lassen Long Valley Sierraville Quad. 1310 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
  CHSC113065  Rumex stenophyllus Lowell Ahart; John Dittes 2013-7-22 18866 Lassen North margin of road levee, about 100 yards east of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CAS-BOT-BC434262  Rumex triangulivalvis John Thomas Howell 1934-7-8 12486 Lassen Spalding's, Eagle Lake Comment
  POM203794  Rumex venosus J. T. Howell 1934-7-8 12486 Lassen Spaldings Resort; Eagle Lake Comment
  UCD150405  Rumex venosus William Anderson 1963-6-2 s.n. Lassen Honey Lake Refuge. Comment
  UC1051438  Sagittaria cuneata Herbert L. Mason 1955-8-13 14647 a Lassen Willow Creek Valley Comment
  UC935793  Sagittaria cuneata Calvin McMillan and Malcolm A. Nobs 1949-6-15 785 Lassen Nubieber 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
  JEPS107443  Salix exigua Lowell Ahart, John Dittes 2005-6-1 11905 Lassen On the north side of Scott Road, east side of the railroad underpass, Long Valley, about 4 3/4 miles (air) north of the intersection of Scott Road and Highway 70, 6.2 miles (air) northwest of Hallelujah Junction 1459 Comment
  UC1134871  Salix exigua C. W. Hanks 1934-9-28 97 Lassen Long Valley s of Honey Lake (near Plumas Nat'l Forest); Sierraville Quadrangle Comment
  RSA716142  Salix jepsonii L. Ahart, John Dittes 2005-6-2 11947 Lassen About 1.5 miles NE of the Anderson Ranch home. Long Valley. About 6 (air) miles N of the intersection of Scott Road and Hwy 70. 7.5 (air) miles NW of Hallelujah Jct. 1602 Comment
  CAS-BOT-BC128175  Salix lasiandra var. lasiandra G. Schoolcraft 1999-5-7 2822 Lassen Susanville 1371 Comment
  JEPS107868  Salix lasiandra var. 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
  CAS-BOT-BC107368  Salix lasiolepis var. lasiolepis A. G. Brenneis 1928-5-28 2 Lassen Lassen National Forest, 1/2 mi. East of Willow Springs 1371 Comment
  CAS-BOT-BC124637  Salix lemmonii M. B. Kildale 1926-9-11 2788 Lassen Susanville 1524 Comment
  POM209469  Salix lemmonii Carleton R. Ball 1932-7-24 687 Lassen Mt. Lassen Highway. 0.6 mile N of Sulphur Works Checking Station. Lassen Volcanic National Park. 1982 Comment
  UC1776696  Salix lemmonii G. Schoolcraft 1994-8-3 2425 Lassen About 1.5 miles SW of Boot Lake 2011 Comment
  NY187800  Salix lucida subsp. caudata J. T. Howell 1973-5-12 49221 Lassen Elysian Valley northwest of Janesville 1325.9 Comment
  SEINET10417120  Salix lucida subsp. caudata G. Schoolcraft 1995-5-14 2477 Lassen W of Susan Hills subdivision, SW of Susanville. 1372 Comment
  CHSC66404  Salix lucida subsp. lasiandra Vernon H. Oswald; Lowell Ahart 1996-6-17 7790 Lassen Modoc Plateau. Bizz johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville. Growing on the edge of the Susan River at the Hwy. 36 bridge. 1402 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
  RSA715977  Salix lucida subsp. lasiandra L. Ahart, John Dittes 2005-6-2 11925 Lassen Along a small ditch. Along the road. Near the Anderson Ranch home. Long Valey. About 4.75 miles (air) N of the intersection of Scott Rd and Hwy 70. 6.2 miles (air) NW of Hallelujah Jct. 1460 Comment
  UCD125447  Salvia aethiopis L. Myler 1951-1 s.n. Lassen Exact location unknown. Comment
  CHSC64790  Salvia dorrii var. dorrii Vernon H. Oswald 1995-5-24 6757 Lassen Modoc Plateau. Wendel Rd. (Lassen 320) 3.3 mi e of Amedee Rd. at Wendel. 1280 Comment
  CHSC12487  Sambucus mexicana Carol Weld 1969-6-26 45 Lassen 7.8 miles SW of Eagle Lake Field Station. 1584 Comment
  CHSC60277  Sambucus mexicana P. V. Caldwell 1972-6-23 247 Lassen Irrigation ditch at headwaters of Willow Creek, Upper Murer's Meadow, on the bank. Comment
  UC773940  Sambucus mexicana L. R. Short and J. Warren 1936-7-28 S- 490 Lassen Burgess Spring Experiment Range Lassen National Forest 1859 Comment
  CAS-BOT-BC238592  Sambucus nigra subsp. caerulea John Thomas Howell 1974-7-10 50548 Lassen Elysian Valley 1325 Comment
  UC1598734  Sanicula tuberosa M. S. Baker and Frank Nutting 1894-7-9 Lassen Pine Creek Comment
  CDA19211  Sarcobatus vermiculatus D. Kratville 2001-6-21 s.n. Lassen Modoc Plateau; Outside of Susanville. 0 Comment
  UCD101770  Sarcobatus vermiculatus Beecher Crampton 1960-6-19 5730 Lassen southeast of Karlo; along U.S. Hwy 395. Comment
  CHSC6239  Sarcodes sanguinea Sam Webb 1946-6-8 Lassen Roop Mountain, Eagle Lake. 2133 Comment
  HSC17991  Sarcodes sanguinea M. T. Milligan 1964-7-17 146 Lassen 3.5 mi. W of Eagle Lake Rd. on Marrill Flat Rd. 1677 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
  CHSC93678  Schoenoplectus pungens var. longispicatus Lowell Ahart; John Dittes 2005-6-2 11975 Lassen Stream edge, Long Valley, about 4 1/2 miles (air) northeast of the intersection of Scott Road and Highway 70, 5.7 miles (air) northwest of Hallelujah Junction. 1408 Comment
  SEINET10751251  Scirpus acutus var. occidentalis Andrew Townesmith, Karen M. Meyer 2007-7-22 Townesmith 842 Lassen Lassen National Forest, Almanor Ranger District. Little Tule Lake, 6.1 miles west county road A21 on county road 110 and Forest Service road 10. T31N R7E S35 NW 1/4. 1980 Comment
  CHSC61594  Scirpus microcarpus Arthur G. Barrett 1915-8-18 35 Lassen Plumas National Forest. Laufman Ranger Station. 1463 Comment
  SEINET3815589 Image available Scirpus microcarpus Marcus E. Jones 1897-1 Lassen Susanville 1341 Comment
  UC1100879  Scirpus nevadensis Malcolm A. Nobs, S. Galen Smith 1949-7-22 1073 Lassen ne side Eagle Lake; ne side Eagle Lake Comment
  CAS-BOT-BC240001  Scribneria bolanderi Malcom A. Nobs; S. Galen Smith; Herbert L. Mason 1949-5-29 759 Lassen On Great Northern Railroad, Highway 299, Nubeiber Comment
  POM313136  Scribneria bolanderi H. L. Mason, Malcom A. Nobs, S. Galen Smith 1949-5-29 759 Lassen On Great Northern Railroad , Highway 299, Nubeiber. Comment
  CAS-BOT-BC214188  Scutellaria John Thomas Howell 1976-7-19 51978 Lassen Gold Run Creek southwest of Susanville, Sierra Nevada 1386 Comment
  NY415691  Scutellaria holmgreniorum N. H. Holmgren 1980-7-5 9524 Lassen 21.9 km (13.6 mi.) from U.S. Hwy. 395 via Rye Patch Canyon, 24 km (15 mi) airline distance SE of Ravendale 1580 Comment
  CHSC91527  Scutellaria nana L. P. Janeway 2005-7-4 8461 Lassen High Cascade Range. Ridge top north above Long Valley; 0.4 km west of Road 34N41. 1752 Comment
  HSC82199  Scutellaria nana Thomas W. Nelson, Jane P. Nelson 1980-7-6 6054 Lassen Along Ash Creek at Ash Creek Campground 1494 Comment
  UC1137775  Scutellaria nana August L. Hormay 1934-7-2 Lassen 1/4 mi nw of Black's Mountain; Lassen National Forest 1706 Comment
  UC1549235  Scutellaria nana Richard Olmstead 1983-7-2 415 Lassen 16 mi s of Ravendale (1 mi s of rest area, near small stream, along US 395); US 395 1444 Comment
  CAS-BOT-BC240082  Secale cereale Margaret Williams; Steven Williams 1974-7-26 74 -L-38 Lassen Near Hallelujah Junction, west of Hwy 395 and south of Hwy 70 1493 Comment
  CAS-BOT-BC363325  Senecio aronicoides Jean Langenheim 1957-6-26 4372 Lassen Northwest Said Valley, north-eastern part of Lassen County Comment
  RSA712935  Senecio aronicoides L. P. Janeway 2005-7-4 8471 Lassen High Cascade Range. Ridge top north above Long Valley; 0.4 km west of Road 34N41. 1752 Comment
  UC1143033  Senecio aronicoides L. R. Short 1936-6-2 S- 355 Lassen Burgess Spring Experimental Range Lassen National Forest 1865 Comment
  UC506921  Senecio aronicoides George A. Fischer and Irwin H. Johnson 1933-7-14 F- 253 Lassen Lassen Forest 1783 Comment
  CAS-BOT-BC363326  Senecio aronicoides A. A. Heller 1938-6-4 15143 Lassen West of Fredonyer Pass 1676 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
  CHSC114299  Senecio eurycephalus var. lewisrosei B. Villegas 2010-6-17 Lassen South of Adin; Hwy. 139 at Milepost 58. On both sides of the road. Comment
  CHSC60822  Senecio hydrophiloides Vernon H. Oswald; Lowell Ahart 1993-6-28 5600 Lassen Rd. 35N04 at Aspen Well, N of Hwy 44 on the NW edge of Harvey Valley, NE of Poison Lake. Meadow. 1725 Comment
  CHSC7651  Senecio hydrophilus Beverley J. Wise 1969-5-9 28 Lassen 10.3 mi. east of Susanville on Forest Serv. 8246 off Hwy 36. 1554 Comment
  SEINET10799223  Senecio integerrimus Billy Joe Cox 1971-6-2 Cox 2993 Lassen 6 mi. N of Hallelujah Jct. on U.S. Hwy 395, in Artemisia tridentata, Pinyon Pine, Jeffery Pine along high ridge & in sandy wash. 1402 Comment
  CHSC5218  Senecio integerrimus var. exaltatus A. Santos 1946-6-13 Lassen Pine Creek, Eagle Lake. 1600 Comment
  OBI76982  Senecio integerrimus var. exaltatus Anthony Baniaga 2011-6-20 384 Lassen Lassen Natl Forest. Windy Gap Well vicinity. Harvey Mtn quad T32N R8e sec 6 NE of SW 1675 Comment
  CAS-BOT-BC363857  Senecio integerrimus var. exaltatus Elmer I. Applegate 1934-5-4 8937 Lassen 15 miles south of Ravendale Comment
  CAS-BOT-BC341186  Senecio lugens John Thomas Howell 1934-6-14 12159 Lassen Near Lost Lake, Warner Mts. 2438 Comment
  CAS-BOT-BC205776  Sidalcea oregana David D. Keck; J. Clausen 1935-6-24 3740 Lassen 2 mi. S. of Ravendale 1464 Comment
  HSC95261  Sidalcea oregana subsp. spicata Gordon Leppig 1998-8-17 1050 Lassen Modoc National Forest, Blue Lake Ranch 1970 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
  UC1136874  Silene bernardina George A. Fischer and Irwin H. Johnson 1933-7-14 F- 257 Lassen Lassen National Forest 1783 Comment
  UC773919  Silene douglasii L. R. Short and D. Gish 1936-7-15 S- 487 Lassen Burgess Spring Experiment Range Lassen Forest, Burgess Spring Experiment Range 1743 Comment
  POM100924  Silene lemmonii Marcus E. Jones 1897-6-28 s.n. Lassen Diamond Mountain. Susanville. Perkin s Ranch. 1829 Comment
  CAS-BOT-BC389551  Silene nuda John Thomas Howell 1974-7-10 50547 Lassen Elysian Valley 1325 Comment
  CHSC36188  Silene nuda M. S. Taylor 1982-7-8 4790 Lassen Along Scott Rd just s of bend, ca. 4 mi ne of Beckwourth Pass. 1432 Comment
  RSA666396  Silene nuda Barbara Ertter 1988-7-25 7867 Lassen ridge of Diamond Mtns, ca. 1.5 mi. E of Diamond Peak, ca. 10 air miles due S of Susanville. 2256 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
  UC569941  Silene nuda E. Sawyer 1935-6-27 223 Lassen Long Valley Sierraville Quad., Long Valley Comment
  UC465657  Silene occidentalis subsp. occidentalis Franklin P. Nutting Lassen Silver Lake Comment
  CAS-BOT-BC75079  Sisymbrium altissimum Louella Bass 1973-5-25 46 Lassen Sierra Nevada. Elysian Valley. 1325 Comment
  CHSC112766  Sisymbrium altissimum Lowell Ahart; John Dittes 2013-7-23 18884 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
  CAS-BOT-BC75080  Sisymbrium altissimum Ira L. Wiggins; Dorothy B. Wiggins 1961-6-11 16333 Lassen 13.5 miles east of Susanville. Comment
  CHSC27605  Sisyrinchium bellum Jennifer Estep 1978-7-11 1 Lassen Papoose Creek, SE corner of Eagle L. 1584 Comment
  JEPS107807  Sisyrinchium bellum Lowell Ahart, John Dittes 2005-6-2 11948 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
  UC1032501  Sisyrinchium bellum A. Simontacchi 1940-6-15 863 Lassen 2.3 mi ssw of Black Mountain; Lassen National Forest 1798 Comment
  UC21381  Sium suave J. Burtt Davy Jun 17 1897-Jun 24 1897 3363 Lassen Honey Lake Valley Comment
  JEPS127179  Solanum dulcamara Lowell Ahart, John Dittes 2016-7-15 21226 Lassen Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. Comment
  CAS-BOT-BC34688  Solanum lycopersicum J. H. Thomas 1969-9-7 15468 Lassen Susanville. Near center of town in disturbed fields, near a drivein. Comment
  CHSC65362  Solanum triflorum Vernon H. Oswald; Lowell Ahart 1995-8-14 7176 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
  CDA8717  Solidago californica Gary Schoolcraft 1994-8-29 2426 Lassen About 1 mile west of Susanville up Piute Creek. Comment
  CAS-BOT-BC365368  Solidago elongata Ynez Whilton Winblad 1935-9-29 s.n. Lassen Horse Lake Comment
  JEPS103171  Solidago elongata G. Schoolcraft 1997-8-19 2697 Lassen Susan Rvr. Canyon W. of Susanville 1371 Comment
  CAS-BOT-BC365752  Solidago spectabilis Lassen 1927 G. S. Crew 1927-7-15 82 Lassen Lassen National Forest. Feather Lake 1737 Comment
  CHSC66285  Sparganium emersum subsp. emersum Vernon H. Oswald; Lowell Ahart 1996-6-24 7871 Lassen Modoc Plateau. Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake. In Papoose Creek where it leaves the N end of the meadow. 1633 Comment
  POM119382  Sparganium eurycarpum Marcus E. Jones 1897-6-24 s.n. Lassen 10 to 15 miles west from Amedee. 1219 Comment
  UC1537628  Sparganium eurycarpum var. eurycarpum Gordon H. True Jr. 1939-7-6 1024 Lassen Honey Lake Valley; George Bailey Ranch Comment
  CHSC64869  Sphaeromeria potentilloides var. potentilloides Vernon H. Oswald 1995-6-26 6934 Lassen Modoc Plateau. Ash Valley Rd. (Lassen 527) 0.4 mi n of Spooner Rd. in Ash Valley. On the e side of the road adjacent to a flat of low sagebrush. 1542 Comment
  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
  JEPS63054  Stachys ajugoides var. rigida Brown and Wieslander ca. 1914 57 Lassen near Eagle Lake; Martin Sprs. Comment
  CHSC64776  Stanleya pinnata var. pinnata Vernon H. Oswald 1995-6-7 6841 Lassen Modoc Plateau. Wendel Rd. (Lassen 320) near milepost 19.5 just w of Skedaddle Creek, e of Wendel, ne of Susanville. Flat bordering the road. 1237 Comment
  SD8165  Stellaria calycantha Mrs. R. M. Austin August 1882 Lassen Comment
  HSC95299  Stellaria longipes subsp. longipes Gordon Leppig, Tony LaBanca, Leonel Arguello 1997-6-29 544 Lassen Modoc National Forest, Blue Lake Ranch 1970 Comment
  CAS-BOT-BC375307  Stephanomeria exigua subsp. coronaria John Thomas Howell 1934-6-10 11847 Lassen 4 miles south of Omira Comment
  CAS-BOT-BC322925  Stephanomeria tenuifolia Clarence R. Quick 1964-8-5 64 -95 Lassen Cal Mt. east of Poison Lake 1767 Comment
  JEPS36870  Stephanomeria tenuifolia Brown and Wieslander 1922-7-23 35 Lassen Martin Springs Eagle Lake Comment
  SEINET10524630  Stipa comata var. comata Douglas G. LeDoux, David B. Dunn 1973-5-25 LeDoux 884 Lassen Coll 3 mi N of Milford, on Hwy 395 at Honey Lake campgrounds. Comment
  SEINET10523036  Stipa occidentalis Billy Joe Cox, David B. Dunn 1971-6-2 Cox 3114 Lassen 6 mi N of Hallelujah Jct on US Hwy 395, in Artemisia tridentata, Pinyon pine, Jeffery Pine along high ridge & in sandy wash. 1402 Comment
  SEINET10973548  Streptanthus cordatus David B. Dunn, Billy Joe Cox 1971-6-2 Dunn 17787 Lassen 6 mi. N. Of hallelujah jct on us 395, in artemesia tridentata, pinyon pine, jeffrey pine along high ridge & in sandy wash. 1402 Comment
  JEPS95901  Suaeda occidentalis Lowell Ahart 1999-9-13 8211 A Lassen just south of the parking area; about 1 mile south of the sign in station; Honey Lake Wildlife Area; 5 1/2 miles (air) southeast of Standish 1207 Comment
  CHSC105255  Swertia albicaulis var. albicaulis Lowell Ahart; John Dittes 2010-7-31 16987 Lassen About 100 yards northeast of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin. 1520 Comment
  JEPS47014  Swertia albicaulis var. albicaulis Jos. Grinnell Lassen Eagle Lake 1584 Comment
  UC1123452  Swertia albicaulis var. albicaulis A. Simontacchi 1940-6-6 823 Lassen 3.6 mi wsw Patterson Mtn.; Lassen National Forest, Halls Flat Quad. 1737 Comment
  UC1609461  Swertia albicaulis var. albicaulis Vernon H. Oswald and Lowell Ahart 1993-6-28 5605 Lassen ne of Poison Lake (at Aspen Well, n of Hwy 44, on the nw edge of Harvey Valley) 1725 Comment
  RSA18164  Symphoricarpos acutus C. B. Wolf 1929-9-1 3781 Lassen Mt. Lassen Nat'l Park, between Grassy Lake and Snag Lake. Comment
  CHSC54393  Symphoricarpos rotundifolius var. rotundifolius Vernon H. Oswald 1991-6-25 4694 Lassen Lassen Volcanic National Park. East side of Butte Lake, somewhat south of its outlet. 1842 Comment
  HSC93475  Symphoricarpos rotundifolius var. rotundifolius Gordon Leppig, Tony LaBanca 1998-7-13 964 Lassen Modoc National Forest, Blue Lake Ranch. 1799 Comment
  JEPS88239  Symphoricarpos rotundifolius var. rotundifolius Vernon H. Oswald and Lowell Ahart 1996-6-17 7801 Lassen ca. 7 mi. w. Susanville (Bizz Johnson Trail accessed at Devils Corral Trailhead located off Hwy. 36, edge of trail ca. 0.2 mi. e. of Devils Corral Trailhead, Modoc Plateau); Modoc Plateau, Bizz Johnson Trail 1420 Comment
  UC1949147  Symphyotrichum ascendens Barbara Ertter 1987-7-24 7299 Lassen ca 3/4 mi ENE of Beckwourth Pass Comment
  UC2027325  Symphyotrichum foliaceum var. parryi Anthony Baniaga 2011-9-8 512 Lassen Lassen National Forest. Caribou Wilderness; N of Long Lake. Red Cinder quadrangle. Comment
  UC1037340  Symphyotrichum frondosum Leo Whitney 1934-9-6 3070 Lassen south shore of Eagle Lake Lassen National Forest 1584 Comment
  UC1192071  Symphyotrichum frondosum Verne Grant and Irving Schneider 1947-9-5 8375 Lassen northwest shore of Eagle Lake by Sam Webb's place Comment
  CHSC108012  Taraxacum officinale Lowell Ahart; John Dittes 2011-6-20 17490 Lassen About 30 yards east of the stream, about 40 yards south of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin. 1520 Comment
  CHSC36454  Taraxia tanacetifolia Susan H. Euing 1982-6-6 8 Lassen Pine Creek below fish trap. Comment
  CHSC6193  Taraxia tanacetifolia W. Vinyard 1946-6-10 Lassen Pelican Point, Eagle Lake. 1556 Comment
  JEPS114747  Taraxia tanacetifolia Lowell Ahart, John Dittes 2008-6-22 15037 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
  SEINET5345198  Taraxia tanacetifolia M. J. Williams 1974-7-26 74 -L-24 Lassen 2 mi west of Hallelujah Junction, south of Hwy 70 1494 Comment
  UC2027202  Taraxia tanacetifolia Anthony Baniaga 2011-6-10 319 Lassen Along highway 395 ca. 6.6 mi S of Karlo Rd. quadrangle. Comment
  CDA19720  Taraxia tanacetifolia anon. 1957-6-4 Lassen Modoc Plateau; Mud Flat. 0 Comment
  POM31685  Tetradymia canescens Marcus E. Jones 1897-6-30 s.n. Lassen Eagle Lake, 27 miles from Susanville 1524 Comment
  UCD136828  Tetradymia canescens Margaret Williams; Steven Williams 1974-7-26 74- 2 -28 Lassen near Hallelujah Junction, west of Hwy 395 and south of Hwy 70. 1493 Comment
  CAS-BOT-BC329050  Tetradymia canescens John Thomas Howell; Gordon H. True; Wayne Daken 1974-7-30 50678 Lassen summit ridge of Diamond Mtn. 2346 Comment
  UC91602  Tetradymia glabrata T. S. Brandegee 1892-7-22 Lassen Honey Lake Comment
  CAS-BOT-BC88053  Thelypodium crispum John Thomas Howell 1934-6-10 11859 Lassen 3 miles north of Omira. Comment
  SEINET248028  Thelypodium crispum Unknown 1980-7-3 9486 Lassen U. S. Highway 395, 7.4 km (4.6 mi) south of Ravendale. 1620 Comment
  RSA0026216  Thelypodium crispum John F. Emmel 1997-6-9 1504 Lassen Along Hwy. 395, 4.2 road miles SE of Ravendale, at south end Madeline Plains. 1622 Comment
  SEINET3562918  Thelypodium howellii Arnold Tiehm, Jan Nachlinger, Gary Schoolcraft 1984-1 Lassen Comment
  CAS-BOT-BC88086  Thelypodium howellii subsp. howellii Arnold Tiehm; Gary Schoolcraft; Jan Nachlinger 1984-6-25 8826 Lassen Rodeo Flat, 2.7 road miles west of the state line on Buckhorn road from Ravendale to Highway 81. 1828 Comment
  JEPS17734  Thelypodium integrifolium subsp. complanatum Rimo Bacigalupi with G. T. Robbins 1955-7-21 5428 Lassen 1.3 mi w Nevada State line (Rush Creek, s of Smoke Creek Ranch Rd, 17.5 mi e of U.S. Hwy 395); Rush Creek Comment
  CAS-BOT-BC88134  Thelypodium milleflorum Ella Dales Cantelow 1941-5-22 s.n. Lassen 3.5 miles south of Secret Valley C.C.C. Camp. U.S. Highway 395 to Alturas from Susanville. Comment
  UC585211  Thelypodium milleflorum E. B. Babcock, G. L. Stebbins Jr. 1936-6-8 1782 Lassen about 2 mi n Mapes (n side of Honey Lake Valley); Honey Lake Valley 1371 Comment
  CAS-BOT-BC193474  Thinopyrum ponticum John Thomas Howell 1975-7-23 51409 Lassen Along Hwy. 395 between Johnstonville and Jonesville - Sierra Nevada 1280 Comment
  CHSC112403  Thlaspi arvense Lowell Ahart; John Dittes, Todd Sloat 2013-6-8 18745 Lassen Drainage filled with dirt from construction of a pond, about 30 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  POM203962  Thlaspi arvense J. T. Howell 1934-6-10 1906 Lassen 3 miles S of Ravendale. Comment
  UCD93239  Torreyochloa pallida var. pauciflora L. Whitney 1933-9-3 s.n. Lassen Slate Creek. 1920 Comment
  CHSC12439  Tragopogon Robert W. Severin 1969-6-26 40 Lassen Springs area along road to Galatin Beach 7.2 mi from E.L.B.S.; 3 mi s E.L.B.S.; hillside. 1645 Comment
  CHSC5028  Tragopogon pratensis L. B. Barlow 1967-7-6 103 Lassen 2 mi. west of Murrer's Ranch turn off, 14.9 mi. north of Susanville, Highway 139. 1463 Comment
  HSC93311  Triantha occidentalis subsp. occidentalis Vernon H. Oswald, L. Ahart 1996-8-1 8122 Lassen USFS Rd. 28N56 2 mi. N of Dyer Mtn. Lookout, SSW of Westwood 1738 Comment
  JEPS127266  Trichostema oblongum Lowell Ahart, John Dittes 2016-7-13 21122 Lassen 80 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. Comment
  POM70273  Trichostema simulatum Marcus E. Jones 1897-6-25 s.n. Lassen Susanville. 1341 Comment
  CHSC99259  Trifolium cyathiferum Lowell Ahart; John Dittes 2008-6-22 15025 Lassen On the sides of a small drainage, on the west side of the levee, about 20 yards south of the tall poles, mountain meadow, in Big Valley, about 3.5 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber. 1260 Comment
  UC16470  Trifolium cyathiferum J. Burtt Davy Jun 17 1897-Jun 24 1897 3349 Lassen Honey Lake Valley Comment
  CAS-BOT-BC219030  Trifolium gymnocarpon subsp. plummerae David D. Keck; J. Clausen 1935-6-24 3742 Lassen 2 mi. S. of Ravendale 1464 Comment
  CHSC99104  Trifolium hybridum Lowell Ahart; John Dittes 2008-6-20 14903 Lassen About 100 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. 1263 Comment
  JEPS66048  Trifolium kingii var. productum Brown and Wieslander 1922-7-23 18 Lassen Martin Springs Comment
  CHSC4831  Trifolium longipes subsp. hansenii R. Carter 1967-7-14 603 Lassen Growing in shaded woods on n side of rd. Ca. 3.5 mi e of Silver Lake between rd (31N07) and Susan River. 1828 Comment
  UCSC011017  Trifolium longipes subsp. hansenii Lowell Ahart, John Dittes 2016-7-15 21230 Lassen About 80 yards west of the road, about 100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 air miles northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 air miles northeast of Bieber; 41.183167 -121.036972 1268 Comment
  HSC103929  Trifolium longipes subsp. shastense L. Ahart, John Dittes 2008-6-20 14923 Lassen About 7.0 air mi. NE of Bieber, ~4.0 air mi. NE of Headquarters at Ash Creek State Wildlife Area; ~ 10 yds. west of where the levee road crosses Big Valley Canal, in Big Valley. 1264 Comment
  CHSC13871  Trifolium repens Mary E. Meyer 1973-7-7 19 Lassen Located in Murrer's Upper Meadow along spring at NE end. 1572 Comment
  CHSC5293  Trifolium repens P. Collett 1946-6-19 Lassen Willow Creek valley. 1463 Comment
  CHSC112999  Trifolium wormskioldii Lowell Ahart; John Dittes 2013-7-23 18892 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
  HSC95153  Trifolium wormskioldii Gordon Leppig 1998-7-12 961 Lassen Modoc National Forest, Blue Lake Ranch 1970 Comment
  UC1537084  Trifolium wormskioldii Gordon H. True Jr. 1936-6-26 546 Lassen Head of Willow Creek; e of Eagle Lake 1584 Comment
  CHSC21232  Triglochin maritima Robert A. Schlising 1974-6-20 3147 Lassen Murrers Upper Meadow, about 2.5 miles east of Eagle Lake Field Station, on the east side of Eagle Lake. Comment
  JEPS32136  Triglochin maritima J. B. Davy June 1897 3394 Lassen Honey Lake Valley Comment
  UCD138183  Triglochin maritima P. B. Schultz 1967-7-11 73 Lassen 4 miles south of south end of Eagle Lake on State Highway 139. 1463 Comment
  CHSC66276  Triglochin scilloides Vernon H. Oswald; Lowell Ahart 1996-6-24 7878 Lassen Modoc Plateau. Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake. In Papoose Creek where it leaves the N end of the meadow. 1633 Comment
  SJSU4312  Trisetum canescens H. L. Buckalew 1961-7-10 Lassen Blue Lake, Warner Mts 1828 Comment
  CAS-BOT-BC193529  Trisetum spicatum Clare B. Hardham 1971-8-22 18419 Lassen Diamond Mountain 2346 Comment
  RSA79411  Triteleia bridgesii E. K. Balls 1952-5-24 17251 Lassen Ash Creek Public Camp, along Ash Creek, off road from Adin to Madeline. 1524 Comment
  RSA378064  Triteleia hyacinthina Hutchinson s.n. Lassen [no additional locality information provided] Comment
  SEINET10533645  Triteleia hyacinthina Meyer 1980-7-15 Meyer s.n. Lassen Along stream adjacent to Ash Valley Road. Plant assoc: riparian vegetation, Achillea; alluvial soil; ) slope; ) aspect. T37N R12E MW 1/4 of sec. 4, elev. 5600 feet. 1706 Comment
  SEINET3125312 Image available Triticum aestivum Richard R. Halse 2006-1 6991 Lassen Modoc National Forest, along Blue Lake Road north of Blue Lake, about 15 miles ESE of Likely. 1860 Comment
  SEINET7951785 Image available Typha angustifolia M. A. Nods, S. G. Smith 1949-8-20 1473 Lassen N shore of lake 1 mi S of Milford, Honey Lake Valley Comment
  UC1241801  Typha domingensis Malcolm A. Nobs and S. Galen Smith 1949-8-20 1473 Lassen n shore Honey Lake (Honey Lake Valley, one mi s of Milford); Honey Lake Valley Comment
  UC1241787  Typha latifolia Malcolm A. Nobs and S. Galen Smith 1949-8-20 1474 Lassen nw shore Honey Lake (Honey Lake Valley, one mi s of Milford); Honey Lake Valley Comment
  SD8210  Umbellularia californica J. M. Hutchings, Cleveland 1881-6-19 Lassen Eagle Peak. Comment
Read comments
May 12 2020
  CAS-BOT-BC404118  Urtica dioica subsp. holosericea John Thomas Howell 1976-7-19 51991 Lassen On Gold Run Creek southwest of Susanville 1386 Comment
  HSC63678  Urtica dioica subsp. holosericea Richard Spjut 1979-9-11 5555 Lassen E shores of Eagle Lake. 1524 Comment
  CHSC66248  Utricularia minor Vernon H. Oswald; Lowell Ahart 1996-6-24 7869 Lassen Modoc Plateau. Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake. In Papoose Creek where it leaves the N end of the meadow. 1633 Comment
  UCD121864  Utricularia minor Barry Rice 2009-7-5 BR 090705 Lassen at Robbers Spring. Comment
  CHSC5296  Utricularia vulgaris 1944-6-23 Lassen Along shoreline of Eagle Lake, near Webb's. 1554 Comment
  CHSC65316  Utricularia vulgaris Vernon H. Oswald 1995-8-21 7214 Lassen Warner Mtns. Blue Lake located ca. 13 mi SE of Likely. At the SW corner of the lake. 1859 Comment
  SEINET10702720  Utricularia vulgaris Karen M. Meyer, Andrew Townesmith 2007-7-21 Meyer 148 Lassen Lassen National Forest. 1.3 mi. on Road 10 to Silver Lake off Road 110. 1963 Comment
  CAS-BOT-BC194022  Vaccinium cespitosum M. S. Baker; Frank Nutting 1894-7-30 s.n. Lassen Silver Lake Comment
  RSA748768  Vaccinium uliginosum subsp. occidentale K. M. Meyer, A. Townesmith 2007-7-21 147 Lassen Lassen National Forest. 1.3 mile on Road 10 to Silver Lake off Road 110. Pine forest, lake. 1963 Comment
  SEINET10684214  Vaccinium uliginosum subsp. occidentale Karen M. Meyer, Andrew Townesmith 2007-7-21 Meyer 147 Lassen Lassen National Forest. 1.3 mi. on Road 10 to Silver Lake off Road 110. 1963 Comment
  JEPS88233  Ventenata dubia Vernon H. Oswald and Lowell Ahart 1996-6-17 7791 .1 Lassen ca. 7 mi. w. Susanville (Bizz Johnson Trail accessed at Devil's Corral Trailhead located off of Hwy. 36, trailside just s.e. of Hwy. 36 bridge spanning the Susan R.); Modoc Plateau, Bizz Johnson Trail 1402 Comment
  CAS-BOT-BC528859  Veratrum californicum Marcus E. A M Jones 1897-6-28 s.n. Lassen Susanville Perkin's Ranch 1463 Comment
  JEPS127171  Verbascum blattaria Lowell Ahart, John Dittes 2016-7-15 21227 Lassen In Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. Comment
  CHSC67070  Verbascum thapsus Willis Ball 1969-6-28 53 Lassen Found growing by Eagle Lake about 50 yds. S. of E.L.B.S. Plant. 1554 Comment
  CHSC4900  Veronica americana Bill Wilson 1967-6-28 68 Lassen Collected at Upper Murrer Meadow, 2.5 mi. E of Eagle Lake Biological Station, 10 mi. N of Susanville. 1524 Comment
  HSC23516  Veronica americana L. B. Barlow 1967-6-24 41 Lassen 4 mi. E of Eagle Lake Biological Station at Murrer's Meadow 1524 Comment
  JEPS24105  Veronica americana Peter H. Raven, Otto T. Solbrig 1958-6-17 13277 Lassen 13.1 mi s of Ravendale (along U.S. Hwy 395) Comment
  CHSC60860  Veronica peregrina subsp. xalapensis Vernon H. Oswald; Lowell Ahart 1993-6-28 5590 Lassen Harvey Valley Rd. (33N02), 1.7 mi N of Hwy 44, E side of Grays Valley, E of Poison Lake. 1719 Comment
  SJSU11610  Veronica peregrina subsp. xalapensis J. W. Tilden 1958-6-27 1292 Lassen Madeline Comment
  UC1594651  Veronica scutellata Vernon H. Oswald and Lowell Ahart 1992-7-16 5112 Lassen Bridge Creek entering McCoy Flat Reservoir on the s side of Hwy 44, Between Old Station and Susanville Bridge Creek; McCoy Flat Reservoir, Bridge Creek 1691 Comment
  SD61009  Vicia americana subsp. oregana Darley F. Howe 1964-8-1 3909 Lassen Warner Mountains, Modoc National Forest, Parsnip Creek 1890 Comment
  CHSC91327  Vicia americana var. americana Lowell Ahart; John Dittes 2005-6-1 11866 Lassen On the west side of the poor dirt road, about 1/2 mile west of Scott Road, Long Valley, about 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.9 miles (air) northwest of Hallelujah Junction. 1448 Comment
  SDSU6688  Vicia americana var. americana D. F. Howe 1964-8-1 3909 Lassen Parsnip Creek, Warner Mountains, Modoc National Forest. Comment
  UC1761705  Viola adunca Leo Whitney 1934-7-30 Lassen Bridge Creek Camp Lassen National Forest 1737 Comment
  UC921155  Viola adunca Loyd Swift 1928-5-23 Lassen Lassen National Forest Comment
  UC1025077  Viola macloskeyi Leo Whitney 1934-5-27 1734 Lassen 15 mi w of Eagle Lake (Crater Lake); Lassen National Forest, Crater Lake 2133 Comment
  HSC25971  Viola purpurea subsp. purpurea D. H. Norris, T. Nelson, S. Dowty 1971-6-22 19254 Lassen Harvey Valley near Cone Springs Comment
  HSC63774  Viola purpurea subsp. purpurea Teresa Prendusi 1980-5-30 1132 Lassen Mapes Spring 1616 Comment
  POM85345  Viola purpurea subsp. venosa Marcus E. Jones 1897-6-28 s.n. Lassen Top of Diamond Mt., Susanville, Perkin's Ranch. 2226 Comment
  UC1024883  Vulpia bromoides Leo Whitney 1935-5-26 3138 Lassen 10 mi e Adin; Ash Creek Comment
Read comments
Jun 24 2009
  CHSC4864  Wyethia R. Carter 1967-7-7 581 Lassen Collected ca. 20 yds from E shore of small resevoir, dry forest. Deans Meadow. Comment
  CAS-BOT-BC383487  Wyethia mollis Clarence R. Quick 1961-6-21 61 -36 Lassen Adjacent to Road 21, Blacks Mountain Experimental Forest northeast of Lassen Peak 1798 Comment
  JEPS32044  Wyethia mollis Hilda W. Grinnell 1934-6-1 Lassen 1 mi w Susanville 1341 Comment
  SD61008  Wyethia mollis Darley F. Howe 1964-8-2 3922 Lassen East Creek, Warner Mountains, Modoc National Forest 1980 Comment
  UC1035999  Wyethia mollis Helen K. Sharsmith 1955-6-22 4498 Lassen Five miles beyond Blue Lake on road to Likely, Warner Mountains, Modoc National Forest. 1767 Comment
  UC1099962  Zannichellia palustris Malcolm A. Nobs and S. Galen Smith 1949-8-10 1476 Lassen 1 mi. n. Doyle (banks of Long Creek, Honey Lake Valley); Honey Lake Valley, Long Creek Comment
  UC60853  Zannichellia palustris J. Burtt Davy Jun 17 1897-Jun 24 1897 3355 Lassen marsh near Amedee (Honey Lake Valley); Honey Lake Valley Comment
  HSC30121  Zigadenus paniculatus D. H. Norris, Thomas W. Nelson, S. Dowty 1971-6-22 19307 Lassen Along Hwy. 395, 4 mi. E of Standish Comment
  SEINET8526402  Zigadenus paniculatus C. G. Gulling 1905-1 Lassen Comment



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