Search Results — 2000 specimen records retrieved (1596 records with coordinates)
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 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CDA19039  Abies concolor Mark Lubinski 2000-10-12 PDR 070105 Lassen Sierra Nevada; 1 mi W on State Route 44 and 36. 0 Comment
  CDA467  Abies concolor Mark Lubinski 1999-10-12 PDR# 070105 Lassen 1 mi. W of State Route 44 and 36 (intersection). Comment
  CHSC13794  Abies magnifica Cathy Crittenden 1970-7-9 39 Lassen 2 1/2 miles east of Antelope Mtn. lookout on road to Eagle Lake Resort. 1981 Comment
  CAS-BOT-BC28648  Achillea millefolium Louella Bass 1973-5-29 72 Lassen Elysian Valley 1325 Comment
  CAS-BOT-BC260402  Achnatherum hymenoides Ira L. Wiggins; Dorothy B. Wiggins 1961-6-11 16335 Lassen 13.5 miles E of Susanville Comment
  UC60714  Achnatherum hymenoides J. Burtt Davy Jun 17 1897-Jun 24 1897 Lassen Long Valley Honey Lake Valley Comment
  UCD18958  Achnatherum lemmonii Jack N. Reppert 1965-7-13 18 Lassen Lassen National Forest, Harvey Valley Allotment-Logan Springs. 1706 Comment
  UCD18959  Achnatherum nelsonii Jack N. Reppert 1965-7-13 17 Lassen Lassen National Forest, Harvey Valley Allotment (HV-17). 1682 Comment
  CAS-BOT-BC110706  Achnatherum nelsonii subsp. dorei G. Schoolcraft 1994-7-7 2373 Lassen About 1 mile west of Boot Lake. 2346 Comment
  UCD51066  Achnatherum occidentale subsp. californicum Beecher Crampton 1960-6-18 5729 Lassen Southern Warner Mtns., vicinity of Blue Lake Ranch. 1981 Comment
  RSA129480  Achnatherum occidentale subsp. occidentale G. A. Fischer, I. H. Johnson 1933-7-12 F- 199 Lassen Grass Valley 1697 Comment
  UC506985  Achnatherum occidentale subsp. occidentale George A. Fisher and Irwin H. Johnson 1933-7-12 F- 215 Lassen Lassen Forest 1706 Comment
  UC60152  Achnatherum occidentale subsp. occidentale J. Burtt Davy Jun 17 1897-Jun 24 1897 Lassen Long Valley Honey Lake Valley Comment
  UC773977  Achnatherum occidentale subsp. pubescens L. R. Short and J. Warren 1936-6-29 S- 462 Lassen Burgess Spring Experimental Range Lassen National Forest 1820 Comment
  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
  UCD51211  Achnatherum occidentale subsp. pubescens Beecher Crampton 1954-7-5 2064 Lassen along Hwy. 36, 4.5 miles west of Susanville. 1432 Comment
  CHSC80710  Achnatherum speciosum V. H. Oswald; B. Corbin, K. Earll, G. Schoolcraft 2001-6-2 10034 Lassen Northeast of Doyle in the Fort Sage Mtns, trailhead to top of mountain from the end of a 4WD road. 1798 Comment
  JEPS102671  Achnatherum speciosum V. H. Oswald, B. Corbin, K. Earll, and G. Schoolcraft 2001-6-2 10034 Lassen NE of Doyle (Fort Sage Mountains, trailhead to top of mountain from the end of a 4WD road) 1798 Comment
  CAS-BOT-BC218008  Achnatherum thurberianum John Thomas Howell 1976-7-20 52005 Lassen About 5 miles W of Fredonyer Pass near confluence of Susan River and Willard Creek 1432 Comment
  JEPS107797  Achnatherum thurberianum Lowell Ahart, John Dittes 2005-6-2 11946 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, about 7.5 miles (air) northwest of Hallelujah Junction 1601 Comment
  JEPS114857  Achnatherum thurberianum Lowell Ahart, John Dittes 2008-6-19 14870 Lassen about 100 yds E of Willow Creek, about 120 yds NE of Hwy 139, near Forest Road 36N02, about 19.6 mi E-SE of Bieber 1578 Comment
  UC1026712  Achnatherum thurberianum Leo Whitney 1935-6-25 3311 Lassen 13 mi w of upper end Eagle Lake; Ashurst Mountain Comment
  UC1153869  Achnatherum thurberianum Beecher Crampton 1954-7-5 2052 Lassen mountain flat 4.5 mi w on State Hwy. 36 Susanville 1432 Comment
  UCD51423  Achnatherum thurberianum Beecher Crampton 1964-6-27 7091 Lassen 21 miles north of Susanville, north end of Eagle Lake, B.L.M. Bucks Bay allotment. 1676 Comment
  CAS-BOT-BC217991  Achnatherum webberi David D. Keck; J. Clausen 1935-6-24 3749 Lassen 2 miles S of Ravendale 1463 Comment
  CHSC117223  Acmispon denticulatus Lowell Ahart; John Dittes 2016-6-7 20996 Lassen West of the pond, 110 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bierber, 7.3 Miles (air) southwest of Adin, hills at the southern slope of Big Valley. 1289 Comment
  CHSC99296  Acmispon denticulatus Lowell Ahart; John Dittes 2008-6-20 14970 Lassen About 100 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. 1263 Comment
  SBBG109301  Acmispon nevadensis var. nevadensis C. B. Hardham 1961-6-16 7454 Lassen Gold Run Crk, S of Susanville Comment
  CHSC117525  Acroptilon repens Lowell Ahart; John Dittes 2016-7-13 21103 Lassen Sides of the overflow, about 50 yards north of the dam, 200 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. 1289 Comment
  CAS-BOT-BC391607  Actaea rubra John Thomas Howell; Gordon H. True 1973-8-1 50164 Lassen Gold Run Creek road south of Susanville, Diamond Range 1584 Comment
  UC1220355  Adonis aestivalis J. R. Sweeney 1962-6-5 2653 Lassen 1/2 mi n ow Willow Creek Guard Station (16 mi n of Susanville on State Highway 139, 54 mi s of Adin); State Highway 139 1219 Comment
  UCD95438  Adonis aestivalis Gerald Dickinson 1963-7-2 s.n. Lassen Willow Creek Campground, ca. 18 miles southeast of Adin on road to Termo. 1219 Comment
  CHSC67060  Agastache parvifolia Willis Ball 1969-6-25 27 Lassen Found in Upper Murrer's Meadow. 1584 Comment
  JEPS126483  Agastache parvifolia Valda Lockie, Lillie Pennington, Jillian Pastick, Rachael Payer, Andrea Stuemky 2015-7-15 CA 350 -047 Lassen Directly off Horn Ranch Road. Follow Horn Ranch Road until you reach a fork with a sign. Follow road left then continue for about 3-5 miles. Comment
  OBI48641  Agastache parvifolia Lewis S. Rose 1940-6-15 40591 Lassen Grasshopper Valley, 39 mi N of Susanville 1524 Comment
  UC1609441  Agastache parvifolia Vernon H. Oswald and Lowell Ahart 1993-6-28 5619 Lassen e Poison Lake (n of Hwy 44 along Rd 33N47 at the ne end of Little Harvey Valley, between Champs Flat and Harvey Valley, bordering a drying branch of Pine Creek); ne end of Little Harvey Valley, Pine Creek 1737 Comment
  UC1037267  Ageratina occidentalis Leo Whitney 1933-8-27 1797 Lassen 14 mi w Eagle Lake (Harvey Lookout); Lassen National Forest, Harvey Valley 2225 Comment
  CAS-BOT-BC30236  Ageratina occidentalis Hans Leschke 1959-8-8 1634 Lassen Between Bumpas Hell and Cold Boiling Lake 2407 Comment
  UC468890  Agoseris X dasycarpa J. Burtt Davy Jun 17 1897-Jun 24 1897 3405 Lassen Chat Long Valley Comment
  RSA715617  Agoseris glauca var. dasycephala L. Ahart, John Dittes 2005-6-1 11851 Lassen On the east side of the poor dirt road, about 1/2 mile west of Scott Road, Long Valley, about 2 air miles northwest of the intersection of Scott Road and Highway 70, 3.9 air miles northwest of Hallelujah Junction. 1449 Comment
  POM33406  Agoseris glauca var. dasycephala F. H. Hillman 1897-7-12 s.n. Lassen Chat Comment
Read comments
Mar 6 2011
  CAS-BOT-BC22894  Agoseris heterophylla John Thomas Howell; Gordon H. True; Margaret Williams 1973-5-12 49168 Lassen Elysian Valley northwest of Janesville 1325 Comment
  CHSC66231  Agoseris heterophylla Vernon Oswald; Lowell Ahart 1996-6-24 7860 Lassen Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake. Modoc Plateau. 1633 Comment
  POM34510  Agoseris heterophylla Marcus E. Jones 1897-6-18 s.n. Lassen Chat. 1524 Comment
  SEINET10509717  Agropyron desertorum Douglas G. LeDoux, David B. Dunn 1973-5-24 LeDoux 859 Lassen Collected at jct of hwy 70 & 395 at arco station. Comment
  CAS-BOT-BC127523  Agrostis capillaris Gary Schoolcraft 1984-7-30 1326 Lassen Along Smoke Creek about 5 miles below Big Springs. 1584 Comment
  CAS-BOT-BC127237  Agrostis exarata John Thomas Howell; Gordon H. True 1973-7-31 50021 Lassen Sierra Nevada. On road from Janesville to Thompson Peak, Diamond Range. 1737 Comment
  RSA129621  Agrostis exarata H. S. Yates 1936-8-11 6067 Lassen Baxter Creek 1280 Comment
  UC589901  Agrostis exarata H. S. Yates 1936-8-11 6067 Lassen Baxter Creek Susanville Quad., Baxter Creek Comment
  UCD52292  Agrostis exarata L. Whitney 1933-8-1 s.n. Lassen Near Slate Creek. Comment
  SEINET4341020  Agrostis exarata G. Schoolcraft 1994-8-1 2382 Lassen About 2 miles west of Boot Lake 2256 Comment
  CAS-BOT-BC139297  Agrostis idahoensis John Thomas Howell 1973-7-10 49767 Lassen Sierra Nevada. Near Westwood. 1554 Comment
  UC1567418  Agrostis pallens G. Schoolcraft 1989-7-18 1978 Lassen near Buck's Spring (s of Clark's Valley Rd) 1874 Comment
  UCD53120  Agrostis pallens Leo Whitney 1934-7-10 2225 Lassen near Harvey Spring, Harvey Valley, 14 miles west of Eagle Lake, Lassen National Forest. 1737 Comment
  CHSC29905  Agrostis scabra Robin L. Ondricek 1978-8-4 114 Lassen Near edge of Eagle Lake along grassy shoreline. 1554 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
  UC188820  Agrostis variabilis Milo S. Baker July 1894 Lassen Comment
  CAS-BOT-BC267061  Alisma John Thomas Howell 1974-7-10 50546 Lassen Elysian Valley 1325 Comment
  JEPS121269  Alisma lanceolatum Lowell Ahart 2013-7-22 18841 Lassen W margin of duck field, about 80 yards S of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley. Comment
  CHSC66736  Alisma triviale Vernon H. Oswald; Lowell Ahart 1996-8-1 8106 Lassen Mountain Meadows Reservoir SW of Westwood. On the receding shore of the reservoir NE of Indian Ole Dam. 1539 Comment
  SEINET8193719  Allium M. J. Williams 1969-6-14 s.n. Lassen Ravendale. 1615 Comment
  CHSC29895  Allium acuminatum Robin L. Ondricek 1978-7-22 105 Lassen One mi s of Colley Point Overlook on Hwy 139. 1670 Comment
  UCR45852  Allium acuminatum Thomas W. Nelson, Jane P. Nelson 1980-7-6 6026 Lassen Ash Valley, along branch road off Adin-Madeline Road just south of bridge over Ash Creek, & c. 16 mi. SE of Adin; 2.5 mi. SE of junction with main road 1555 Comment
  CAS-BOT-BC461096  Allium anceps B. Bartholomew; M. Gilbert; L. Skog 1993-5-13 6553 Lassen Just S of Ravendale 1580 Comment
  CHSC71106  Allium anceps Vernon H. Oswald; Lowell Ahart 1998-5-22 9102 Lassen Hackstaff Rd. 1.0 mi south of Laver Crossing Rd., 0.2 mi north of Fort Sage Rd., ca. 3 mi north of Doyle. 1316 Comment
  NY247822  Allium bidwelliae R. M. Austin 06 1879 s.n. Lassen Pine Creek Meadows. Comment
  POM110223  Allium campanulatum Marcus E. Jones 1897-6-28 s.n. Lassen Top of Diamond Mt. Susanville. Perkin's Ranch. 2226 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
  UC1229822  Allium lemmonii Gus Hormay 1961-6-15 Lassen experimental forest ot Patterson Flat Patterson Flat Comment
  CAS-BOT-BC470922  Allium lemmonii G. Schoolcraft 1993-6-10 2287 Lassen Approx. 9.5 miles east of Madaline on Clark Valley Road 1828 Comment
  SEINET3884711  Allium lemmonii D. W. McNeal 1983-6-5 2840 Lassen Beside Eagle Lake Road (Lassen Co. Highway A-1) 0.5 mile North of Highway #36.; 0 Comment
  CHSC7185  Allium parvum Lynn R. Thomas 1969-4-17 90 Lassen 100 yds n of Ward Lake, ca. 15 mi e of Susanville. 1280 Comment
  CAS-BOT-BC474048  Allium parvum Ethel S. Willits 1940-4-28 199 Lassen South of Surprise Valley, Modoc County 1371 Comment
  RSA59747  Allium platycaule E. K. Balls 1950-5-19 14782 Lassen 16.5 miles west of Madeline on road from Adin. 1677 Comment
  JEPS107805  Alnus incana subsp. tenuifolia Lowell Ahart, John Dittes 2005-6-2 11945 Lassen Along a small stream, about 1 1/2 miles northeast of the Anderson Ranch home, Long Valley, about 6 miles (air) north of the intersection of Scott Road and Highway 70, 7.5 miles (air) northwest of Hallelujah Junction 1601 Comment
  IRVC26622  Alopecurus aequalis A. A. Beetle 1941-6-28 2795 Lassen Route 36, 10 mi west of Chester Comment
  UCD55845  Alopecurus aequalis A. A. Beetle 1941-6-28 2795 Lassen 10 miles W of Chester, rte 36. Comment
  CAS-BOT-BC138162  Alopecurus aequalis var. aequalis John Thomas Howell 1975-7-23 51388 Lassen Sierra Nevada. Susanville. 1295 Comment
  CHSC110894  Alopecurus carolinianus Lowell Ahart; John Dittes 2012-7-9 18289 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
  JEPS127279  Alopecurus carolinianus Lowell Ahart, John Dittes 2016-7-13 21142 Lassen 100 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. Comment
  CDA43006  Alopecurus geniculatus L. Ahart, John Dittes 2008-6-2 14960 Lassen About 300 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. Comment
Read comments
Oct 5 2019
  CHSC67189  Alyssum desertorum James D. Jokerst 1991-5-29 3317 Lassen Modoc Plateau. Survey for reroute of Hwy. 139 at the N end of Eagle Lake, E and adjacent to the highway +/- 200 m S of its junction with the road to the W across the N end of the Lake. 1584 Comment
  CHSC67190  Alyssum minus subsp. micranthum James D. Jokerst 1991-5-28 3293 Lassen Modoc Plateau. Survey for reroute of Hwy. 139 at the N end of Eagle Lake, ca. 400 ft E of the highway on slopes above road, S of a small canyon mouth. 1554 Comment
  UC1924261  Alyssum minus subsp. micranthum Debra Valov 2004-5-31 2004226 Lassen Bieber; off County A2 c. 8 km east of Hwy 299 1274 Comment
  CHSC77181  Ambrosia acanthicarpa G. Schoolcraft 1998-9-14 2809 Lassen Flats N of Turtle Point. 1264 Comment
  JEPS41028  Ambrosia acanthicarpa W. L. Jepson 1939-8-11 19379 Lassen Milford 1280 Comment
  JEPS95710  Ambrosia acanthicarpa Vernon H. Oswald and L. Ahart 1995-8-14 7191 Lassen T33N R14E SW1/4 Sec. 2, 5400 ft, Modoc Plateau, Sagebrush Scrub. Horse Lake Rd. (Lassen 536) 1.8 mi W of Hwy. 395, N of Susanville 1645 Comment
  SEINET3871758  Ambrosia acanthicarpa Richard R. Halse 2010-8-26 8089 Lassen Along State Hwy. 70 at Beckwourth Pass ca 4.3 miles west of its junction with U.S. Hwy. 395 or 1.6 miles E of Sierra Valley.; 0 1584 Comment
  CAS-BOT-BC42863  Ambrosia acanthicarpa R. E. Frenkel 1964-10-1 916 Lassen On California Hwy. 36, 1 mile east of California Hwy 44, west of Susanville 1493 Comment
  CAS-BOT-BC28272  Amphiscirpus nevadensis John Thomas Howell 1934-7-8 12506 Lassen Spalding's, Eagle Lake Comment
  RSA0009480  Amphiscirpus nevadensis Marcus E. Jones 1897-6-23 s.n. Lassen Amedee. 1220 Comment
  POM71504  Amsinckia intermedia Marcus E. Jones 1897-6-26 s.n. Lassen Susanville, Perkin s Ranch. 1463 Comment
  RSA0089911  Amsinckia menziesii L. Ahart 2005-6-1 11899 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
  CHSC71073  Amsinckia tessellata var. tessellata Vernon H. Oswald; Lowell Ahart 1998-5-22 9091 Lassen Hwy. 395 at an intermittent drainage crossing the road 2.3 mi south of Milford. 1255 Comment
  CAS-BOT-BC63874  Antennaria argentea Marcus E. Jones 1897-6-25 s.n. Lassen Susanville 1341 Comment
  CAS-BOT-BC63954  Antennaria argentea John Thomas Howell; Gordon H. True; Margaret Williams 1973-6-28 49454 Lassen Elysian Valley, west of Janesville 1325 Comment
  UC1125575  Antennaria argentea A. Simontacchi 1940-6-23 886 Lassen 3.2 mi sw Schoonamaker Lake; Halls Flat Quad. 1920 Comment
  CHSC68729  Antennaria dimorpha Vernon H. Oswald; Lowell Ahart 1997-5-27 8505 Lassen North of Susanville on Forest Route 38N04 (between Hwy. 139 near Willow Creek Guard Station and Coyote Flat), 0.3 mi east of Hwy. 139. 1560 Comment
  CAS-BOT-BC59219  Antennaria dimorpha Ellsworth Bethel 1923-4-21 s.n. Lassen Fall River Mills Comment
  RSA416684  Antennaria dimorpha Gary Schoolcraft 1980-4-8 203 Lassen On east side of Shaffer Muntain about 1/2 mile west of Hwy 395 1463 Comment
  SEINET10671600  Antennaria dimorpha David B. Dunn, Billy Joe Cox 1971-6-2 Dunn 17794 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
  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
  CHSC28406  Antennaria geyeri Wayne O. Baum 1971-7-12 71 -54 Lassen E. slope of Gallatain Peak. 1950 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
  CHSC92677  Antennaria geyeri L. P. Janeway; B. Castro 2005-7-10 8478 Lassen Northern High Sierra Nevada. Crest of the Diamond Mountains overlooking Janesville and the north end of Honey Lake; 0.2 km north of Road 28N01 and 0.6 km east of junction of Janesville Grade Road (Road 208 and 28N02) and Road 28N01. Northerly-facing side of the crest. 1859 Comment
  POM39124  Antennaria geyeri Marcus E. Jones 1897-6-25 s.n. Lassen Susanville. 1341 Comment
  UC1609173  Antennaria geyeri Vernon H. Oswald and Lowell Ahart 1993-6-28 5614 .1 Lassen on Rd 33N06 n Hwy 44 (sse flank of mt., nne of Burgess Meadow, ne of Poison Lake); Harvey Mtn. 1798 Comment
  JEPS22839  Antennaria luzuloides A. A. Heller 1938-6-23 15189 Lassen 4 mi e Westwood Comment
  UC380912  Antennaria luzuloides Marcus E. Jones, A. M. 1897-6-18 Lassen Chat 1524 Comment
  CAS-BOT-BC77291  Antennaria microphylla Mrs. Marian L. Campbell 1916-7-12 s.n. Lassen Mt. Peterson Comment
  CHSC60304  Antennaria rosea subsp. confinis Mary Ann Showers 1992-6-13 2558 Lassen Lassen Volcanic National Park. Volcanic outcrops southwest of Widow Lake. 2072 Comment
  JEPS94555  Antennaria rosea subsp. confinis Vernon Oswald and Lowell Ahart 1997-6-24 8647 Lassen s of Susanville (at the small pond on the crest of Diamond Mountain, about midway between Aspen Flat and Red Rock Lookout); crest of Diamond Mountain 2249 Comment
  CHSC60714  Antennaria rosea subsp. rosea Vernon H. Oswald; Lowell Ahart 1993-6-14 5506 Lassen Lassen A21 (32N02), 2.1 mi E of Lassen 105 (32N28Y), on the SE side of Pine Creek Valley, ca. 8 mi (air) W of Eagle Lake. . 1728 Comment
  UCD159578  Anthemis cotula D. S. Park 2011-8-24 315 Lassen East of Westwood. Near Goodrich Creek. 319 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
  UC773901  Apocynum androsaemifolium L. R. Short and D. Gish 1936-8-5 S- 492 Lassen Burgess Spring Experiment Range Lassen Forest, Burgess Spring Experiment Range 1783 Comment
  UC1035982  Apocynum androsaemifolium Helen K. Sharsmith 1955-6-27 4516 Lassen adjacent to Hwy. 89 n. of Hat Creek Ranger Station; Lassen Nat'l Forest 1158 Comment
  CAS-BOT-BC392213  Aquilegia formosa Lassen 1927 G. S. Crew 1927-7-15 79 Lassen Lassen National Forest. Bogard R.S. 1725 Comment
  CHSC12461  Aquilegia formosa var. truncata Robert W. Severin 1969-6-25 15 Lassen West side of Murrer's Upper Meadow. 2 mi ESE E.L.B.S. 1584 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
  SEINET10480699  Arabis Mary Susan Taylor 1982-5-7 Taylor 4425 Lassen T22N R17E n/nw sec 5. Beckwourth Pass quad. Reno Jct and along old road paralleling Hwy 70, just e of Beck- wourth Pass, ca. 1/4 mi w of Hallelujah Jct on Hwy 395. Sagebrush Scrub; 5000 ft. 1524 Comment
  NY112363  Arabis hirsuta G. Schoolcraft 1985-7-23 1479 Lassen 1.5 miles NW of Coon Camp Springs 35-10-23. 1798.3 Comment
  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
  NY119631  Arabis suffrutescens G. Schoolcraft 1983-6-29 1038 Lassen Coulthurst Flat area, 34-10-27 SW 1889.8 Comment
  CAS-BOT-BC407748  Arceuthobium abietinum H. L. Boldenbeck 1910-6-1 s.n. Lassen Lassen National Forest Comment
  CAS-BOT-BC45892  Arctostaphylos nevadensis A. H. Kramer 1929-1-1 s.n Lassen Prospect Peak Comment
  CHSC7703  Arctostaphylos patula subsp. gankinii Beverley J. Wise 1969-5-9 41 Lassen 11 mi. west of Susanville on Forest Serv. Rd. 8246 off Hwy 36. 1524 Comment
  RSA702604  Arenaria congesta L. P. Janeway 2004-6-26 8141 Lassen High Cascade Range. Halls Flat; about 0.3 km east of Road 33N13; 3.5 km north of junction of Road 33N18. 1714 Comment
  UC8098  Arenaria congesta var. subcongesta M. S. Baker and F. Nutting 1894-7-2 Lassen Dixey Mts. Comment
  JEPS126466  Argemone munita Lillie Pennington, Jillian Pastick, Rachael Payer, Andrea Stuemsky 2015-7-7 CA 350 -061 Lassen 395 S to Laver Crossing, turn right immediately after kiosk, keep straight at intersection near the railroad crossing. Comment
  JEPS124518 Image available Argemone munita Himayat H. Naqvi 1965-7-12 144 Lassen 2.6 miles from Milford, highway 139 Comment
  CHSC107316  Arnica chamissonis Lowell Ahart; John Dittes 2011-6-21 17534 Lassen About 100 yards southwest of where the levee road crosses Big Valley Canal, in big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. 1263 Comment
  CHSC99733  Arnica chamissonis Lowell Ahart; John Dittes 2008-6-20 14906 Lassen About 100 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7.0 miles (air) northeast of Bieber. 1263 Comment
  JEPS35881  Arnica chamissonis Leland S. Smith 1918-7-22 1007 Lassen Blue Lake Modoc National Forest, Warner Range (w end), Blue Lake 1874 Comment
  CHSC27167  Arnica dealbata J. D. Prouty 1978-7-27 30 Lassen 3.9 mi w of jct with road A-1 on n side of Merrill Flat Rd just e of Roney Corral, s of Eagle Lake. 1770 Comment
  CHSC89756  Arnica mollis L. P. Janeway 2004-6-26 8166 Lassen High Cascade Range. 0.6 km east-southeast of Patterson Flat along Road 33N71; Blacks Mountain Experimental Forest. 1785 Comment
  CHSC60874  Arnica sororia Vernon H. Oswald; Lowell Ahart 1993-7-8 5668 Lassen Halls Flat Rd. (33N18), 0.4 mi SW of Pittville Rd. (Lassen 111, 36N01), ca. 5.4 mi (air) NW of Poison Lake. 1706 Comment
  UCD129145  Arnica sororia G. Schoolcraft 1994-6-9 2298 Lassen Ash Valley RNA between Adin and Madeline, CA. 1600 Comment
  UCD129182  Artemisia arbuscula A. A. Beetle 1957-8-16 12766 Lassen 15 miles south of Alturas. Comment
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Jul 11 2013
  CHSC118795  Artemisia arbuscula subsp. arbuscula L. P. Janeway 2015-8-9 11823 Lassen Warner Mountains. Along Road 39N06 at the 64 Road (39N01- the road to Patterson Camprgound); 0.7 air-km west of Long Valley, 5.3 air-km northeast of Blue Lake. 2179 Comment
  CHSC72214  Artemisia arbuscula subsp. arbuscula Vernon H. Oswald 1998-9-14 9621 Lassen Windy Hollow on the west side of Hwy. 44 ca. 1 mi northwest of its intersection with A21 (to Westwood). 1737 Comment
  UC1136977  Artemisia arbuscula subsp. arbuscula L. R. Short 1936-9-30 S- 506 Lassen Burgess Spr. Exp. Range Lassen National Forest, Burgess Spr. Exp. Range 1746 Comment
  UC747143  Artemisia arbuscula subsp. arbuscula G. Thomas Robbins 1945-10-18 2156 Lassen Harvey Valley Lassen National Forest, Harvey Valley 1676 Comment
  CHSC77184  Artemisia arbuscula subsp. thermopola G. Schoolcraft 1997-8-6 2659 Lassen Diamond Mtn. 2316 Comment
  JEPS103162  Artemisia biennis B. Corbin and D. Armentrout 2002-9-4 1100 Lassen Biscar Reservoir, near dam on upper pond 1357 Comment
  UC1192211  Artemisia biennis Malcolm A. Nobs and S. Galen Smith 1949-8-20 1482 Lassen I mi n of Doyle (Long Creek); Honey Lake Valley Comment
  SEINET6775323 Image available Artemisia cana subsp. bolanderi G. Schoolcraft 1979-10-3 198 Lassen In Dry Valley, just west (0.25 miles) of Dry Valley Gap 1615 Comment
  UC1242648  Artemisia cana subsp. bolanderi A. A. Beetle 1957-8-16 12910 Lassen Litchfield Comment
  UCD129268  Artemisia cana subsp. bolanderi W. Robert Powell 1985-7-30 3523 Lassen 16 air miles SSE of Adin (Modoc Co.), 0.9 mile SSE of Hayden Hill L.O., 0.4 mile west of Daisy Dean Spring. East slope, 3 percent. 1676 Comment
  UCD129274  Artemisia cana subsp. bolanderi Howard Leach Date Unknown s.n. Lassen Madeline Plains. Comment
  JEPS28717  Artemisia douglasiana George W. Gillett 1957-7-29 955 Lassen near Butte Lake Trail (above Snag Lake); Lassen Volcanic National Park 1859 Comment
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Aug 23 2012
  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
  CAS-BOT-BC93742  Artemisia ludoviciana subsp. incompta Louella Bass 1974-7-1 s.n. Lassen Sierra Nevada - Elysian Valley Comment
  JEPS127351  Artemisia ludoviciana subsp. ludoviciana Lowell Ahart, John Dittes 2016-7-13 21105 Lassen 200 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. Comment
  UC1537358  Artemisia ludoviciana subsp. ludoviciana Gordon H. True 1937-7-10 783 Lassen Bull Flat Refuge 1Q, Bull Flat 1524 Comment
  JEPS37022  Artemisia nova R. F. Hoover 1940-9-28 4634 Lassen Susanville Comment
  SEINET7153395 Image available Artemisia nova A. A. Beetle 1957-8-16 12580 Lassen 8 miles north of Litchfield Comment
  CHSC5197  Artemisia tridentata P. Balch 1955-7-10 Lassen Fields adjoining Stafford's Ranch, Eagle Lake. 1584 Comment
  CAS-BOT-BC97325  Artemisia tridentata subsp. tridentata George W. Gillett 1957-9-4 1132 Lassen Near Bute Lake; intersection of the Widow Lake - Snag Lake trails 1859 Comment
  CHSC67056  Artemisia tridentata subsp. tridentata Willis Ball 1969-6-19 4 Lassen Found approx. 1/2 mile N of E.L.B.S. 1554 Comment
  SEINET195656  Artemisia tridentata subsp. tridentata G. Thomas Robbins 1945-10-18 2157 Lassen Lassen National Forest; Harvey Valley 1676 Comment
  SEINET195654  Artemisia tridentata subsp. vaseyana G. Thomas Robbins 1945-10-7 2155 Lassen Lassen National Forest; Harvey Mountain, 2-3 miles northeast of burgess Spring, Harvey Valley 1676 Comment
  CHSC26163  Asclepias cordifolia J. D. Detzer; Sacks 1977-6-10 36 Lassen Ca. 0.5 km s of Hwy 395, 4 km w of Milford. 1386 Comment
  JEPS49969  Asclepias fascicularis Brown and Wieslander 1922-7-25 31 Lassen Martin Sprs. Eagle Lake Comment
  RSA401104  Asclepias speciosa George Willet 1935-6-27 s.n. Lassen Susanville Comment
  RSA757476  Aster ascendens Barbara Ertter 1987-7-24 7299 Lassen ca 3/4 mi ENE of Beckwourth Pass at end of old crumbling paved road. 1524 Comment
  POM261535  Aster intermedius Alice Eastwood 1912-8-22 1895 Lassen Battle Creek Meadows, Lassen Butte Region Comment
  CHSC23442  Astragalus K. R. Stern; D. B. Joley, J. G. Geschke 1974-6-22 5810 Lassen Ca. 16.5 mi w of Madeline, on Madeline-Adin Road. 1548 Comment
  NY790903  Astragalus agrestis R. M. Austin 06 1898 2211 Lassen Madaline Plains Comment
  UC1533142  Astragalus agrestis G. Schoolcraft 1986-6-25 1642 Lassen about 3 mi nw Termo 1615 Comment
  CDA26597  Astragalus andersonii L. Ahart, J. Dittes 2005-6-1 11917 Lassen On the east side of a poor road, Long Valley, about 4 1/2 miles (air) north of the intersection of Scott Road and Highway 70, 6.0 miles (air) northwest of Hallelujah Junction. Comment
  CHSC116920  Astragalus andersonii J. P. Bergmann 2011-4-30 Lassen Fort Sage OHV Recreation Area. 1450 Comment
  CHSC77208  Astragalus andersonii G. Schoolcraft 1996-5-13 2520 Lassen Fort Sage OHV area 3 miles ne of Doyle. 1402 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
  SEINET5323085  Astragalus andersonii M. J. Williams, A. Tiehm 1978-5-14 78- 48 -2 Lassen 2.8 mi S of northern road into Red Rock (off Hwy 395). 1372 Comment
  HSC42428  Astragalus anxius Barbara Kelly 1977-8-9 558 Lassen 16 1/4 mi. E of Madeline on the dirt road from Adin Comment
  CAS-BOT-BC178762  Astragalus canadensis var. brevidens John Thomas Howell 1934-7-8 12504 Lassen Spalding's, Eagle Lake Comment
  RSA60316  Astragalus curvicarpus E. K. Balls 1950-5-9 15949 Lassen 6 miles south of Doyle, Hwy 395. 1372 Comment
  CHSC60738  Astragalus curvicarpus var. curvicarpus Vernon H. Oswald; Lowell Ahart 1993-6-14 5519 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
  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-BC182954  Astragalus filipes Peter H. Raven; Otto T. Solbrig 1958-6-17 13290 Lassen Along United States Highway 395, 0.4 miles south of Ravendale Comment
  CHSC7675  Astragalus filipes Beverley J. Wise 1969-5-3 52 Lassen 4.8 mi. east of Hwy 395 on Las. Co. Rd 338 (Smoke Creek road). 1615 Comment
  HSC82216  Astragalus filipes Thomas W. Nelson, Jane P. Nelson 1980-7-6 6001 Lassen Along Adin-Madelin Rd., 16 mi. E of Adin in Ash Valley 1555 Comment
  JEPS117260  Astragalus filipes Lowell Ahart, John Dittes 2010-7-31 16976 Lassen About 100 yards northeast of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin 1520 Comment
  JEPS95714  Astragalus filipes Vernon H. Oswald and L. Ahart 1995-6-19 6883 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. Erect, many-stemmed herbaceous perennial. Corolla pale cream. 1371 Comment
  NY658484  Astragalus filipes T. W. Nelson 1980-7-6 6001 Lassen Likely Quad. Along Adin-Madelin Rd. (Ash Valley road), 16 miles East of Adin in Ash Valley 1554.5 Comment
  NY658507  Astragalus filipes G. Schoolcraft 1981-6-15 460 -B Lassen Ash Valley 1554.5 Comment
  SEINET225940 Image available Astragalus filipes M. Lavin, K Lavin 1982-5-16 4069 Lassen 1.5 mi E of Halleujah Jct. (US 395), 22 air mi 325 degrees from Reno, W side of Peterson Mts 1676 Comment
  UC1537108  Astragalus filipes Gordon H. True Jr. 1938-7-9 911 Lassen Madeline Plains near Termo; Madeline Plains near Termo 1524 Comment
  UC81426  Astragalus filipes Mrs. R. M. Austin June, 1879 43 Lassen near Eagle Lake; near Eagle Lake Comment
  RSA339170  Astragalus filipes Margaret J. Williams 1983-7-31 339170 Lassen Ash Valley road, 17 mi. from Aden. 1829 Comment
  CAS-BOT-BC186864  Astragalus gibbsii Doris Kildale Gillespie 1930-5-12 9348 Lassen Between Susanville and Leavitt Lake Comment
  CHSC63395  Astragalus gibbsii V. H. Oswald; G. Schoolcraft, M. Dolan, B. Corbin 1994-6-26 6355 Lassen Ash Valley between Adin and Madeline, ca. 0.5 mi along the road leading SE from the right-angle turn on Lassen 527 near the gravel pit. 1554 Comment
  UC84396  Astragalus gibbsii T. B. 1892-6-26 Lassen Milford Comment
  CHSC83623  Astragalus inversus L. P. Janeway 2001-6-28 7237 Lassen High Cascade Range. Southeast slope of Cone Mountain, 0.8 km south-southeast of the summit; along Road 33N41Y 0.2 km northwest of Road 33N41YD. 1950 Comment
  RSA111018  Astragalus inversus H. D. Ripley, R. C. Barneby 1943-6-14 4300 Lassen West of Susanville 1310 Comment
  CAS-BOT-BC229051  Astragalus lemmonii Marcus E. Jones 1897-6-19 s.n. Lassen Chat 1524 Comment
  UC1483822  Astragalus lentiginosus var. floribundus G. Schoolcraft 1980-5-7 222 Lassen on n shore Honey Lake Island; n shore Honey Lake Island 1219 Comment
  UC1537105  Astragalus lentiginosus var. floribundus Gordon H. True Jr. 1938-7-8 903 Lassen n Hot Spring Mountain (Mud Flat); n of Hot Spring Mountains, Mud Flat 1371 Comment
  JEPS114628  Astragalus lentiginosus var. lentiginosus Lowell Ahart, John Dittes 2008-6-22 15046 Lassen Open meadow, east of the old barn, east of the dirt road, open meadow area, in Big Valley, about 4.7 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7.7 miles (air) northeast of Bieber 1268 Comment
  UC13403  Astragalus lentiginosus var. lentiginosus M. S. Baker and Frank Nutting 1894-7-5 Lassen Dixey Valley Comment
  RSA109610  Astragalus lentiginosus var. platyphyllidius H. D. Ripley, R. C. Barneby 1943-6-14 5744 Lassen Hidden Valley E of Susanville 1311 Comment
  RSA112071  Astragalus lentiginosus var. salinus H. D. Ripley, R. C. Barneby 1943-6-13 5678 Lassen N. of Doyle 1265 Comment
  NY676224  Astragalus malacus B. M. Bartholomew 1993-5-13 6551 Lassen Just south of Ravendale 1580 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
  JEPS109744  Astragalus pulsiferae var. coronensis Dean W. Taylor 2005-6-29 19379 Lassen Piute Creek, 3 mi W from western edge Susanville 1310 Comment
  CAS-BOT-BC192854  Astragalus pulsiferae var. pulsiferae John Thomas Howell 1955-7-19 30818 Lassen East side of Beckwourth Pass 1493 Comment
  RSA111760  Astragalus pulsiferae var. pulsiferae H. D. Ripley, R. C. Barneby 1944-5-30 5967 Lassen North of Secret Valley. 1616 Comment
  RSA715542  Astragalus purshii var. purshii L. Ahart 2005-6-1 11870 Lassen About 1/2 miles west of Scott Road, Long Valley, about 2 miles (air) northwest of the intersection of Scott Road and Highway 70., 3.9 miles (air) northwest of Hallelujah Junction. 1449 Comment
  UC13456  Astragalus purshii var. tinctus L. T. Stephenson Sept., 1897 Lassen Chat Comment
  RSA339987  Astragalus whitneyi Noel Holmgren 1980-7-4 9514 Lassen Observation Peak, south side of mountain, 18 km (11 mi) airline distance east of Ravendale. 2195 Comment
  UC1128897  Astragalus whitneyi A. Simontacchi 1940-6-6 824 Lassen 9.3 mi se Nigger Cabin; Lassen National Forest, Halls Flat Quad. Comment
  SEINET12165119  Astragalus whitneyi N. H. Holmgren, Holmgren, P. K. 1980-1 9514 Lassen Observation Peak, S side of Mt. 18km airline dist. E of Ravendale. T34N R16E S33 Comment
  CDA7885  Astragalus whitneyi var. confusus G. Schoolcraft 1985-5-22 s.n. Lassen Along A2 about 5 miles S of Adin, CA. Comment
  SD109653  Astragalus whitneyi var. confusus James Vale, Keith Wagnon, Walter & Irja Knight 1981-5-24 4136 Lassen 3 mi S of Adin on Hwy #139 1372 Comment
  NY701850  Astragalus whitneyi var. siskiyouensis B. J. Ertter 1987-6-16 7183 Lassen Skeedaddle Mountains on northeast side of Honey Lake, open rhyolitic ridge west of Hot Springs VABM 2134 Comment
  UC1561813  Astragalus whitneyi var. siskiyouensis Barbara Ertter with Gary Schoolcraft 1987-6-16 7183 Lassen open rhyolitic ridge w Hot Springs VABM (Skeedaddle Mountains on ne side of Honey Lake); Skeedaddle Mountains, ne side Honey Lake,l w of Hot Springs 2133 Comment
  NY701852  Astragalus whitneyi var. siskiyouensis H. D. D. Ripley 1943-6-14 5747 Lassen Hidden Valley, east of Susanville 1585 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
  CAS-BOT-BC66017  Athyrium filix-femina var. cyclosorum B. C. Cain 1925-8-24 120 Lassen 1 mile below Drakesbad, Mt. Lassen Nat. Park Comment
  CAS-BOT-BC17439  Athysanus pusillus George Haley 1927-4-15 s.n. Lassen Constantia. Comment
  CHSC64780  Atriplex argentea var. hillmanii Vernon H. Oswald 1995-6-7 6842 Lassen Modoc Plateau. 1.8 mi s of Wendel Rd. (Lassen 320) on an unsigned dirt road near milepost 19.5 just e of Skedaddle Creek, e of Wendel, ne of Susanville. 1231 Comment
  CHSC109990  Atriplex canescens var. canescens L. P. Janeway; B. Castro 2012-7-2 10920 B Lassen Modoc Plateau. Honey Lake Valley, northeast side of Honey Lake, 1.5 km north of Wendel, 0.8 km east of the road to Wendel. 1241 Comment
  JEPS29746  Atriplex confertifolia Rimo Bacigalupi and L. R. Heckard 1962-5-28 8501 Lassen along road from U.S. 395 past Wendel and Flanagan to Pyramid Lake, Nevada, 2 mi e Wendel junction (n of Honey Lake); , e of Wendel junction 1219 Comment
  UC7094  Atriplex gardneri var. falcata J. Burtt Davy Jun 17 1897-Jun 24 1897 3402 Lassen near Willow Ck Valley (Honey Lake Valley); , near Willow Ck Valley Comment
  JEPS94696  Atriplex gmelinii var. gmelinii Vernon H. Oswald and Lowell Ahart 1998-9-8 9581 Lassen 2.2 mi n of Bieber (on County Road 91 (Bieber-Lookout Road)); Ash Creek and Big Swamp, County Road 91 1258 Comment
  CHSC63702  Atriplex rosea Vernon H. Oswald 1994-9-6 6468 Lassen Willow Creek Wildlife Area on Hwy. 139, ca. 10 mi (air) N of Susanville. Common in the parking lot and along the levee road on the N side of the creek. 1490 Comment
  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
  POM35967  Balsamorhiza deltoidea Marcus E. Jones 1897-6-25 s.n. Lassen Susanville. 1341 Comment
  CHSC68609  Balsamorhiza hirsuta Vernon H. Oswald; Lowell Ahart 1997-5-7 8402 Lassen Smoke Creek Ranch Rd. 3.4 mi west of the CA-NV state line. 1420 Comment
  SEINET10617201  Balsamorhiza hookeri Paul Gallian, Billy Joe Cox 1971-6-2 Gallian 476 Lassen Approx. 2 mi. N of Susanville, across CA Hwy. 139 from Lassen Jr. College, in grassland at edge of Jeffery Pine & Artemisia. 1341 Comment
  CHSC67158  Balsamorhiza hookeri var. lanata James D. Jokerst 1994-5-2 4040 Lassen N of Wendel, E of Hwy 395 and railroad, S end of Secret Valley. Comment
  SEINET10534911  Balsamorhiza incana Billy Joe Cox 1971-6-2 Cox 3102 Lassen 4 mi. S of Adin along CA Hwy. 139 in basalt-clay; valley floor in Artemisia. 1341 Comment
  UC1794997  Balsamorhiza sagittata R. K. Brummitt 1998-5-17 19900 Lassen 2 km W of Susanville on Rte. 36 1350 Comment
  UC1776702  Barbarea orthoceras G. Schoolcraft 1998-5-20 2711 Lassen Willow Valley, Hwy 139 and Eagle Lake Road intersect 1493 Comment
  SEINET11997544  Barbarea orthoceras N. H. Holmgren, Holmgren, P. K. 1978-1 8919 Lassen vicinity of spring at fork to Painters Flat on E side of Observation Peak, 28 km E of Ravendale & 1680 Comment
  CHSC63703  Bassia hyssopifolia Vernon H. Oswald 1994-9-6 6469 Lassen Willow Creek Wildlife Area on Hwy. 139, ca. 10 mi (air) N of Susanville. Common in the parking lot and along the levee road on the N side of the creek. 1490 Comment
  CHSC112801  Beckmannia syzigachne Lowell Ahart; John Dittes 2013-7-22 18843 Lassen West margin of a duck field, about 40 yards south of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC113080  Beckmannia syzigachne Lowell Ahart; John Dittes 2013-7-22 18871 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
  HSC9041  Beckmannia syzigachne Fred Kindel 1955-6-24 Lassen Mt.Meadows Reservoir Comment
  JEPS121240  Beckmannia syzigachne Lowell Ahart, John Dittes 2013-7-22 18843 Lassen West margin of duckfield, about 40 yards south of the four tall poles, Ash Creek Wildlife Area, about 5.5 air miles northeast of Bieber, Big Valley. Comment
  JEPS127216  Beckmannia syzigachne Lowell Ahart, John Dittes 2016-7-15 21216 Lassen Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. Comment
  RSA385883  Beckmannia syzigachne A. A. Beetle 1941-6-28 2813 Lassen 6 miles south of Ravendale; lower slopes of Observation Peak Comment
  UCD56795  Beckmannia syzigachne R. Tofsrud 1947-7-1 247 Lassen Between Bieber and Nubieber. Comment
  CDA20547  Berteroa incana D. McDonald 2005-7-18 PDR 1307852 Lassen Modoc Plateau; Hallelujah Junction. 1478 Comment
  CHSC96767  Berteroa incana D. McDonald 2005-7-18 1307852 Lassen Modoc Plateau. Lassen County. Hallelujah Junction. Comment
  RSA713604  Berteroa incana A. Tiehm 2005-7-14 15023 Lassen Long Valley. Anderson (Saralegui) Ranch. 2.2 road miles W of highway 395 on Highway 70, then 5.5 road miles N on Scott Road. 1494 Comment
  UC1037310  Betula glandulosa Leo Whitney 1934-7-31 1806 Lassen 7-8 mi sw Eagle Lake (moist stream bank); Lassen National Forest, Bridge Creek, Bridge Creek Camp 1737 Comment
  CAS-BOT-BC413003  Bistorta bistortoides John Thomas Howell; Gordon H. True; Margaret Williams 1973-5-13 49225 Lassen Elysian Valley northwest of Janesville 1325 Comment
  CAS-BOT-BC127952  Blepharipappus scaber Donald Myrick 1968-6-19 1958 Lassen On roadside along Highway #395, 23 miles south of Alturas. 1524 Comment
  CAS-BOT-BC128035  Blepharipappus scaber Margaret Williams 1974-8-4 74 - L. - 73 Lassen Burned area near Hallelujah Junction, west of Hwy 395 and south of Hwy 70 1493 Comment
  CAS-BOT-BC128036  Blepharipappus scaber Lemmon April 18 188 s.n. Lassen Madaline plains Comment
  CAS-BOT-BC128038  Blepharipappus scaber C. L. Hitchcock 1940-5-26 6612 Lassen lava beds ca. 12 miles north of Fall River Mills on Fall River 1371 Comment
  CAS-BOT-BC128049  Blepharipappus scaber D. Toren; B. Trowbridge 1975-6-20 5255 a Lassen Roadside, Jess Valley to Blue Lake Campground 1676 Comment
  HSC42530  Blepharipappus scaber Barbara Kelly 1977-8-9 566 Lassen 14.3 mi. E of Madeline on the dirt road from Adin Comment
  OBI48164  Blepharipappus scaber Rhonda Riggins 1989-4-27 1640 Lassen US 395, 8.4 mi N Litchfield, 26.6 mi S Ravendale 1311 Comment
  RSA603799  Blepharipappus scaber D. D. Keck, Jens Clausen 1935-6-24 3725 Lassen 5 miles south of Likely. 1402 Comment
  SEINET10945354  Blepharipappus scaber Billy Joe Cox, Paul Gallian 1971-6-2 Cox 2584 Lassen 6 mi. S of Adin; along CA Hwy. 139 right-of-way; in basalt-clay, grassy road bank; Artemisia-Juniper assoc. 1372 Comment
  SEINET3132721  Blepharipappus scaber J. L. Strother 1970-5-13 953 Lassen ca. 6 mi. N of Honey Lk. 1280 Comment
  UC1924569  Boechera Debra Valov 2006-5-30 2006041 Lassen Bieber off County Rd A2 c. 12 km east of Hwy 299 1285 Comment
  CAS-BOT-BC16826  Boechera Ira L. Wiggins; Dorothy B. Wiggins 1961-6-10 16325 Lassen Along southern shore of Eagle Lake. Comment
  RSA0125855  Boechera Christopher Davidson 1975-6-6 2723 Lassen 3.9 miles from jct of county roads 204 and 205 on road 204 along Gold Run Creek, SW of Susanville. 1395 Comment
  CAS-BOT-BC16148  Boechera covillei John Thomas Howell; Gordon H. True; Wayne Dakan 1974-7-30 50672 Lassen Sierra Nevada. Summit ridge of Diamond Mountain. 2346 Comment
  CHSC99134  Boechera puberula Lowell Ahart; John Dittes 2008-6-19 14883 Lassen Open hillside, about 100 yards east of Willow Creek, about 120 yards northeast of Highway 139, near Forest Road 36N02, about 19.6 miles east-southeast of Bieber. 1578 Comment
  JEPS114362  Boechera puberula Lowell Ahart, John Dittes 2008-6-19 14883 Lassen Open hillside, about 100 yards east of Willow Creek, about 120 yards northeast of Highway 139, near Forest Road 36N02, about 19.6 miles east-southeast of Bieber 1578 Comment
  CHSC91294  Boechera retrofracta Lowell Ahart; John Dittes 2005-6-2 11926 Lassen Along the poor dirt road, about 1/4 mile west of the Anderson Ranch home, Long Valley, about 4 3/4 miles (air) north of the intersection of Scott Road and Highway 70, 6.5 miles (air) northwest of Hallelujah Junction. 1498 Comment
  SEINET3165698  Boechera retrofracta R. W. Spellenberg 2006-6-19 13743 Lassen along a USFS access road 2 km E of Calif. Hwy 139, the junction of road and highway 31 km SE of Modoc Co. line (just S of Adin) 1715 Comment
  UC1609108  Boechera retrofracta Vernon H. Oswald and Lowell Ahart 1993-6-14 5512 Lassen ca 4 mi (air) w Eagle Lake (Lassen A1 (Eagle Lake Rd), 1.0 mi n of its jct with Lassen A21 (32N02), on the w edge of Brockman Flat Lava Beds); Brockman Flat Lava Beds 1810 Comment
  CHSC29908  Boechera sparsiflora Robin Ondricek 1978-6-6 38 Lassen 1.3 mi N of Pine Creek Bridge on Co. Rd. 518. 1554 Comment
  CHSC40528  Boechera sparsiflora J. D. Jokerst 1983-5-30 1797 Lassen West of Ash Valley along the SW side of the road to Knox Mt ca 1 mile north of its junction with the road that connects Aden and Madeline. Comment
  CHSC68746  Boechera sparsiflora Vernon H. Oswald; Lowell Ahart 1997-5-27 8512 Lassen North of Susanville on Forest Route 38N04 (between Hwy. 139 near Willow Creek Guard Station and Coyote Flat), 1.4 mi east of Hwy. 139. Roadside. 1645 Comment
  RSA772655  Boisduvalia glabella Robert F. Thorne, Larry E. DeBuhr 1975-8-22 47214 Lassen Along Highway 395 ca. 5 miles north of Madeline and ca. 5.5 miles south of Modoc county line. 1616 Comment
  RSA166311  Boisduvalia stricta D. M. Moore 1960-6-4 123 Lassen U.S. 299, 6.5 mi. NE of McArthur Comment
  UC2118  Bolboschoenus fluviatilis J. Burtt Davy Jun 17 1897-Jun 24 1897 3313 Lassen Byers' Ranch Honey Lake Valley, Byers' Ranch Comment
  CAS-BOT-BC127868  Brickellia greenei Clare B. Hardham 1969-8-28 17430 A Lassen Granitic slope west of Janesville Comment
  SEINET201569  Brodiaea coronaria subsp. coronaria Arthur Cronquist 1959-6-18 8485 Lassen 5 miles south of Adin Comment
  JEPS45832  Bromus briziformis Duncan Dunning 1923-6-6 Lassen lava rocks below Ravendale Comment
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Jun 24 2009
  UCR119112  Bromus carinatus Beecher Crampton 1954-7-5 2055 Lassen Modoc Plateau, 4.5 miles west of Susanville, along state highway 36 1433 Comment
  CAS-BOT-BC149584  Bromus carinatus var. carinatus John Thomas Howell 1973-7-10 49778 Lassen Sierra Nevada. Fredonyer Pass. 1737 Comment
  UC1136817  Bromus carinatus var. carinatus George A. Fischer, Irwin H. Johnson 1933-7-12 F 231 Lassen Lassen National Forest, Patterson Flat Patterson Flat; Lassen National Forest, Patterson Flat 1737 Comment
  UCD59149  Bromus carinatus var. marginatus H. P. Hagge 1929-9-16 s.n. Lassen Logan Mtn. 1828 Comment
  RSA127004  Bromus commutatus H. S. Yates 1936-8-11 6074 Lassen Bexter Creek [Baxter? creek]. Susanville. 1280 Comment
  CAS-BOT-BC155323  Bromus inermis John Thomas Howell; Gordon H. True 1973-8-1 50221 Lassen Sierra Nevada. East slope of Diamond Range south of Susanville. 2164 Comment
  UCD58839  Bromus inermis M. C. Collins 1926-6-14 s.n. Lassen Susanville. Comment
  UC70688  Bromus inermis subsp. inermis J. Burtt Davy Jun 17 1897-Jun 24 1897 Lassen Honey Lake Valley 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
  UCD32672  Bromus japonicus Beecher Crampton 1954-7-6 2076 Lassen Lassen County, 15 miles south of Ravendale, along US highway 395. 1676 Comment
  RSA126867  Bromus marginatus G. A. Fischer, I. H. Johnson 1933-7-12 F 231 Lassen Patterson Flat. Lassen Forest. Comment
  UC1024701  Bromus racemosus L. Whitney 1934-7-18 2143 Lassen Lassen National Forest 1371 Comment
  CHSC36476  Bromus tectorum Margaret E. Halloran 1982-6-6 13 Lassen N of Eagle Lake Field Station on a point directly e of Pelican Pt. Comment
  HSC79991  Bromus tectorum William Rothstrom 1975-6-9 Lassen Johnstonville, 0.25 mi. S of Hwy. 395, W of airport Comment
  RSA152589  Bromus tectorum I. L. Wiggins, Dorothy Wiggins 1961-6-11 16341 Lassen 13.5 mi. E. of Susanville Comment
  UC1024646  Bromus tectorum Leo Whitney 1933-7-8 2209 Lassen 8 mi nw of Eagle Lake (Lassen National Forest, Slate Creek); Lassen National Forest, Slate Creek 1920 Comment
  UC773967  Bromus tectorum L. R. Short, J. Warren 1936-6-9 S 409 Lassen Lassen National Forest, Burgess Spring Experiment Range Burgess Spring Experiment Range; Lassen National Forest, Burgess Spring Experiment Range 1859 Comment
  UCD59875  Bromus tectorum R. N. Raynor 1940-4-16 s.n. Lassen Round Valley. Comment
  SEINET10515057  Bromus tectorum Billy Joe Cox, David B. Dunn 1971-6-2 Cox 3117 Lassen 6 mi n of hallelujah jct on us hwy 395, in artemisia tridentata, pinyon pine, Jeffery pine along high ridge and in sandy wash. 1402 Comment
  CAS-BOT-BC438314  Calandrinia ciliata T. L. Secrest 1961-6-8 s.n. Lassen Edge of McCoy Flat Reservoir, ca. 14 mi. n. of Westwood Comment
  CHSC66239  Callitriche verna Vernon H. Oswald; Lowell Ahart 1996-6-24 7870 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 or along Papoose Creek where it leaves the N end of the meadow. 1633 Comment
  JEPS88592  Callitriche verna Vernon H. Oswald and Lowell Ahart 1996-6-24 7870 Lassen 2.5 mi s Eagle Lake (and 0.5 mi e of Eagle Lake Rd (A1), along Papoose Creek where it leaves the n end of the meadow, Papoose Meadows); Modoc Plateau, Papoose Meadows, Papoose Creek 1633 Comment
  CHSC12475  Calocedrus decurrens Carol Weld 1969-6-20 12 Lassen Forest Service number 516.2. 1676 Comment
  HSC15373  Calochortus bruneaunis M. T. Milligan 1964-8-6 209 Lassen Eagle Lake, near shore at Eagle Lake General Store. 1677 Comment
  SEINET3363841 Image available Calochortus leichtlinii Marcus E. Jones 1897-6-28 Lassen Diamond Mt. Perkin's Ranch 1829 Comment
  HSC63946  Calyptridium monospermum Teresa Prendusi 1980-7-14 Lassen Ash Valley, about 15 mi. W of Madeline along Ash Valley Rd. 1524 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
  UC72577  Calyptridium umbellatum Milo S. Baker 1890-1 Lassen Milford Comment
  RSA122815  Calystegia occidentalis subsp. occidentalis L. R. Short, Wm. Gansberg 1936-7-3 S- 469 Lassen MDM, Burgess Spr. Exp. Range. 1849 Comment
  UC1608997  Camassia quamash subsp. breviflora Vernon H. Oswald and Lowell Ahart 1993-6-3 5475 Lassen between Poison Lake and Susanville (3.7 mi n of Hwy 44 at spur road 32N02E, on se side of Pine Creek Valley); Champs Flat Road, Pine Creek Valley 1731 Comment
  CHSC20416  Camassia quamash subsp. quamash K. R. Stern 1967-6-25 2431 Lassen On road to Eagle Lake Biological Station, ca. 7 mi. S of Eagle Lake. 1828 Comment
  CAS-BOT-BC36995  Camelina microcarpa James Jokerst 1983-5-31 61011 Lassen Near Madeline Plains. 1583 Comment
  HSC69078  Camissonia boothii subsp. alyssoides Gary Schoolcraft 1980-5-16 234 Lassen N of Kiln on Wendel Hwy. 1280 Comment
  NY850970  Camissonia boothii subsp. alyssoides P. A. Munz 1947-5-19 11869 Lassen 19 miles south of Ravendale, on Highway 395 1341 Comment
  SEINET3282785 Image available Camissonia boothii subsp. alyssoides Marcus E. Jones 1897-6-23 Lassen Amedee. 1219 Comment
  POM253278  Camissonia claviformis subsp. cruciformis A. A. Heller 1938-6-23 s.n. Lassen Midway between Mapes and Secret Valley on Hwy 395. 1372 Comment
  POM38501  Camissonia claviformis subsp. cruciformis Marcus E. Jones 1897-6-23 s.n. Lassen Amedee. 1220 Comment
  NY851231  Camissonia claviformis var. cruciformis P. A. Munz 1947-5-19 11870 Lassen 19 miles south of Ravendale, on Highway 395 Comment
  CHSC27119  Camissonia contorta Robert A. Schlising 1978-6-8 3286 Lassen SE of Eagle Lake, in streambed in Murrers Upper Meadow. 1536 Comment
  CHSC93568  Camissonia contorta Lowell Ahart; John Dittes 2005-6-2 11939 Lassen Long Valley, along a poor dirt road, about 1 1/2 miles northeast of the Anderson Ranch home, about 6 miles (air) north of the interesection of Scott Road and Highway 70, 7.5 miles (air) northwest of Hallelujah Junction. 1600 Comment
  RSA294815  Camissonia minor Arnold Tiehm 1980-5-29 5752 Lassen North end of Honey Lake Valley, 2 air miles NW of Wendel. 1232 Comment
  CHSC93689  Camissonia parvula Lowell Ahart; John Dittes 2005-6-1 11852 Lassen On the east side of the poor dirt road, about 1/2 mile west of Scott Road, Long Valley, about 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.9 miles (air) northwest of Hallelujah Junction. 1448 Comment
  JEPS93828  Camissonia parvula Vernon H. Oswald and Lowell Ahart 1998-6-4 9141 Lassen s of Constantia (Red Rock Road at its junction with Highway 395); Red Rock Road 1365 Comment
  CHSC93694  Camissonia pubens Lowell Ahart; John Dittes 2005-6-2 11993 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
  JEPS94108  Camissonia pubens Vernon H. Oswald and Lowell Ahart 1998-5-22 9136 Lassen ca. 3.5 mi. n. Doyle (Fort Sage Rd. 2.3 mi. n. of Hackstaff Rd.) 1341 Comment
  NY852083  Camissonia tanacetifolia G. Schoolcraft 1997-7-2 2607 Lassen On Mud Flat west of Highway 395 1341 Comment
  RSA113688  Camissonia tanacetifolia H. K. Sharsmith 1955-6-27 4511 -B Lassen Adjacent to State Highway 299 near Fall River Mills, Lassen National Forest 1220 Comment
  RSA125385  Camissonia tanacetifolia Arthur R. Kruckeberg 1954-6-22 3322 Lassen 6 miles south of Likely along Highway 395 Comment
  RSA12158  Camissonia tanacetifolia subsp. quadriperforata Wayne E. Sawyer 1935-6-27 219 Lassen Long Valley. 1311 Comment
  CAS-BOT-BC160860  Camissonia tanacetifolia subsp. tanacetifolia Margaret Williams; Steven Williams 1974-7-26 74 -L-24 Lassen Burned area near Hallelujah Junction, west of Hwy 395 and south of Hwy 70 1493 Comment
  CAS-BOT-BC160873  Camissonia tanacetifolia subsp. tanacetifolia John Thomas Howell 1934-6-10 11883 Lassen 12 miles n. of Susanville on road to Horse Lake Comment
  CAS-BOT-BC160879  Camissonia tanacetifolia subsp. tanacetifolia John Thomas Howell; Gordon H. True 1973-8-1 50209 Lassen Headwaters of Baxter Creek. East slope of Diamond Range south of Susanville 2164 Comment
  CAS-BOT-BC160865  Camissonia tanacetifolia subsp. tanacetifolia Peter H. Raven 1963-5-29 18426 Lassen Along U. S. Highway 395, 0.9 miles north of Ravendale Comment
  CAS-BOT-BC160866  Camissonia tanacetifolia subsp. tanacetifolia A. R. Kruckeberg 1954-6-22 3322 Lassen Along roadbanks, 6 miles s. of Likely on Highway 395 Comment
  UC773929  Capsella bursa-pastoris L. R. Short and J. Warren 1936-6-9 S 408 Lassen Lassen National Forest, Burgess Spring Experiment Range Burgess Spring Experiment Range; Lassen National Forest, Burgess Spring Experiment Range 1844 Comment
  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
  CHSC65094  Cardamine breweri var. breweri Vernon H. Oswald; Lowell Ahart 1995-7-24 7126 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. In drainages. 1920 Comment
  RSA592547  Cardamine breweri var. breweri S. O. Mattoon 1978-7-10 24 Lassen Lassen County, Blue Lake Camp Ground: 17 miles E of Likely, Southern Warner Mtns, Modoc N Fork. 1890 Comment
  SEINET515879  Cardaria pubescens Vernon H. Oswald 1998-9-8 9580 Lassen Ash Creek and Big Swamp 2.2 mi N of Bieber on County road 91 (Bieber-Lookout Rd.). 1259 Comment
  CHSC112417  Carex Lowell Ahart; John Dittes, Todd Sloat 2013-6-8 18770 Lassen 300 - 400 or more or less yards northwest of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  JEPS120879  Carex Lowell Ahart, John Dittes, Todd Sloat 2013-6-8 18770 Lassen About 300-400 yards NW of the four tall poles, Ash Creek Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley. 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
  CAS-BOT-BC18105  Carex athrostachya John Thomas Howell; Gordon H. True; Margaret Williams 1973-6-28 49456 Lassen Sierra Nevada. Elysian Valley, west of Janesville. 1325 Comment
  CHSC66412  Carex aurea Vernon H. Oswald; Lowell Ahart 1996-6-17 7814 Lassen Modoc Plateau. Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville. 1420 Comment
  UC2015835  Carex breweri Ron Mastrogiuseppe, Joy Mastrogiuseppe 1986-8-2 4446 Lassen Lassen Volcanic National Park. Lassen Peak. Comment
  JEPS107458  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
  UC1537637  Carex douglasii Gordon H. True Jr. 1939-6-15 996 Lassen w Grasshopper Lake; Bullard Lake Comment
  UC1736284  Carex douglasii Dean W. Taylor 1974-6-14 3716 Lassen Poison Lake, on Hwy 44 ca. 2 miles W from the junction with Pittville Road 1615 Comment
  CAS-BOT-BC19776  Carex douglasii L. P. Janeway 1990-7-4 3766 Lassen Plumas National Forest. Milford Ranger District. East side of saddle, ca. 0.8 mile northeast of Meadowview Peak. 1981 Comment
  CAS-BOT-BC19917  Carex epapillosa L. S. Smith 1918-8-11 1018 Lassen Modoc Forest. Trail to Lost Lake-T38-16. 2438 Comment
  JEPS118277  Carex filifolia var. erostrata Lowell Ahart, John Dittes 2011-6-20 17501 Lassen About 40 yards west of the stream, about 50 yards northwest of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin 1520 Comment
  SEINET7558593 Image available Carex filifolia var. erostrata L. P. Janeway 2004-6-26 8162 Lassen High Cascade Range. At Patterson Well in Patterson Flats. Blacks Mountain Experimental Forest. Poison Lake 7.5' quad. 1767 Comment
  UC1133497  Carex filifolia var. erostrata A. Simontacchi 1940-5-28 789 Lassen 3.2 mi wsw Patterson Mtn.; Lassen National Forest, Halls Flat Quadrangle Comment
  UC1142952  Carex filifolia var. erostrata A. L. Hormay 1941-6-26 238 Lassen Bogard Ranger Station Lassen National Forest, Pine Creek 1706 Comment
  UC1609197  Carex filifolia var. erostrata Vernon H. Oswald and Lowell Ahart 1993-6-3 5472 Lassen Champs Flat Rd (Lassen 21/105, Forest 32N02) 1.8 mi n Hwy. 44 (between Poison Lake and Susanville) 1725 Comment
  CAS-BOT-BC22236  Carex haydeniana John Thomas Howell 1934-6-14 12164 Lassen Near Lost Lake. Warner Mountains. 2438 Comment
  JEPS28342  Carex heteroneura George W. Gillett 1957-7-21 865 Lassen 300 yds. n trail summit (Juniper Lake - Cameron Meadow trail); Lassen Volcanic National Park 2118 Comment
  JEPS97331  Carex limosa Vernon H. Oswald 1995-8-26 7217 Lassen T38N R15E Sec. 20, 6100 ft, Warner Mtns., Fresh-water Marsh in Yellow Pine Forest. Blue Lake located ca. 13 mi SE of Likely 1859 Comment
  UC1136939  Carex mariposana L. R. Short and J. Warren 1936-6-9 S- 405 Lassen Burgess Spr. Exp. Range Lassen Forest 1844 Comment
  JEPS103202  Carex microptera G. Schoolcraft 1994-7-7 2366 A Lassen south end of Warner Mountains West of Boot Lake 2194 Comment
  SEINET10850315  Carex multicaulis R. Ondricek 1978-6-27 Ondricek 78 Lassen On Coleman Lake Rd., .7 mi ne of Lassen Co. Rd. Al. T32N, R11E, nw quarter of Sec. 34, Fredonyer Peak Quadrangle, 15' in the 1977 Burn. 1951 Comment
  UC1100497  Carex nebrascensis Verne Grant and Herbert L. Mason 1947-7-9 13301 Lassen 5 mi e Bieber Comment
  UC1133502  Carex nebrascensis Robert W. Gardner 1939-6-6 G- 29 Lassen Little Harvey Valley Halls Flat Quadrangle Comment
  UC1142949  Carex nebrascensis A. L. Hormay 1941-6-18 7 Lassen Little Harvey Valley Lassen National Forest 1676 Comment
  UC2031885  Carex nebrascensis Nick Otting 2003-7-16 688 Lassen Modoc Plateau, Smoke Creek, 1200 feet downstream of Rye Patch Road crossing, 15 air miles southeast of Ravendale. Comment
  CAS-BOT-BC119041  Carex pellita John Thomas Howell 1976-7-19 s.n. Lassen On Gold Run Creek SW of Susanville 1386 Comment
  CHSC66413  Carex pellita Vernon H. Oswald; Lowell Ahart 1996-6-17 7809 Lassen Modoc Plateau. Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville. 1420 Comment
  CHSC75552  Carex pellita Vernon H. Oswald; Lowell Ahart 1999-6-9 9738 Lassen Northeast of Susanville on County Rd. 216 (to Karlo and Biscar Wildlife Management Area) 0.3 mi west of Hwy. 395. 1353 Comment
  JEPS28385  Carex pellita George W. Gillett 1957-7-26 906 Lassen e shore Butte Lake 200 yards beyond outlet; Lassen Volcanic National Park, Butte Lake 1844 Comment
  CHSC89747  Carex petasata L. P. Janeway 2004-6-26 8153 Lassen High Cascade Range. About 1.3 km west-southwest of Patterson Flat, at junction of Roads 35N08 and 34N20, in Blacks Mountain Experimental Forest. 1750 Comment
  CHSC89760  Carex petasata L. P. Janeway 2004-6-26 8164 Lassen High Cascade Range. 0.6 km east-southeast of Patterson Flat along Road 33N71; Blacks Mountain Experimental Forest. 1785 Comment
  JEPS106522  Carex petasata L. P. Janeway 2004-6-26 8139 Lassen High Cascade Range. Halls Flat; about 0.3 km east of Road 33N13 3.5 km north of junction of Road 33N18 1714 Comment
  SEINET10817202  Carex phaeocephala Willard W. Eggleston 1927-7-11 Eggleston 21474 Lassen Bogard Ranger Station, Lassen Forest. 1500 Comment
  CHSC91380  Carex praegracilis Lowell Ahart; John Dittes 2005-6-1 11879 Lassen Near springs on a small hill, about 3/4 mile west of Scott Road, Long Valley, about 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.9 miles (air) northwest of Hallelujah Junction. 1470 Comment
  JEPS107838  Carex praegracilis Lowell Ahart, John Dittes 2005-6-1 11877 Lassen about 3/4 mile west of Scott Road, Long Valley, about 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.9 miles (air) northwest of Hallelujah Junction Comment
  SEINET7572130 Image available Carex praegracilis Lowell Ahart, John Dittes 2005-6-1 11877 Lassen About 3/4 mile west of Scott Road, Long Valley, about 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.9 miles (air) northwest of Hallelujah Junction. 1470 Comment
  UC1133503  Carex praegracilis Robert W. Gardner 1939-6-15 G- 37 Lassen Little Harvey Valley Halls Flat Quadrangle Comment
  UC1776678  Carex praegracilis G. Schoolcraft 1995-5-22 2484 Lassen East of Skedaddle Ranch 1554 Comment
  CAS-BOT-BC118400  Carex praegracilis John Thomas Howell 1975-7-23 51407 Lassen Wet ground along Hwy 395 between Johnstonville and Jonesville 1280 Comment
  CAS-BOT-BC118740  Carex preslii John Thomas Howell; Gordon H. True; Margaret Williams 1973-6-28 49455 Lassen Elysian Valley, west of Janesville 1325 Comment
  JEPS109091  Carex preslii D. W. Taylor 2008-6-19 20226 Lassen Unnamed meadow equidistant between Papoose Meadwo and Mahogany Lake Comment
  CAS-BOT-BC118029  Carex rossii John Thomas Howell; Gordon H. True 1959-9-23 s.n. Lassen N end of Juniper Lake, Lassen Park. 2057 Comment
  HSC95325  Carex simulata Gordon Leppig, Tony LaBanca, L. Arguello 1997-6-28 509 Lassen Modoc National Forest, Blue Lake Ranch 1970 Comment
  UC2031888  Carex subfusca Nick Otting and Bruce Newhouse 2003-7-15 680 Lassen Sierra Nevada Mountains, Diamond Mountain, 1700 feet southeast of summit, 8 air miles south-southwest of Susanville. Comment
  CAS-BOT-BC116614  Carex subfusca Hans Leschke 1954-7-3 s.n. Lassen Border of swamp north of Willow Lake. 1661 Comment
  CAS-BOT-BC115282  Carex utriculata W. B. Cooke; V. G. Cooke 1976-10-7 53193 Lassen Butte Lake, Near lake shore, Lassen Volcanic National Park. Comment
  HSC95272  Carex vesicaria Gordon Leppig, Kai Neander, Juli Neander 1997-7-26 695 Lassen Modoc National Forest, Blue Lake Ranch 1970 Comment
  UC1142938  Carex vesicaria A. L. Hormay 1941-6-18 1 Lassen Little Harvey Valley Lassen National Forest 1676 Comment
  HSC103632  Carex vesicaria Thomas W. Nelson, Jane Nelson 1985-8-10 8027 Lassen Silver Lake, along north side of arm on east side of lake. 1829 Comment
  HSC103676  Carex vesicaria Thomas W. Nelson, Jane Nelson 1985-8-10 8022 Lassen Margin of pond along south side of lava flow on west side of Silver Lake 1829 Comment
  CAS-BOT-BC114879  Carex whitneyi Beecher Crampton 1964-6-26 7075 Lassen Ca 4 mi SSE Bogard Ranger Station, Lassen National Forest. Comment
  CAS-BOT-BC114884  Carex whitneyi Hans Leschke 1958-8-15 s.n. Lassen Trail Butte-to Snag Lake near Lava beds. 1920 Comment
  JEPS62334  Castilleja angustifolia John L. Strother 1970-5-23 954 Lassen ca 6 mi n Honey Lake 1280 Comment
  UC1012186  Castilleja angustifolia Francis W. Pennell 1940-6-9 25760 Lassen 5 mi s Ravendale (Route 395) 1645 Comment
  JEPS76164  Castilleja applegatei subsp. pallida T. I. Chuang with Fei-Mei Chuang 1977-7-25 7659 Lassen 7.1 mi W of Madeline (on road to Adin) Comment
  CAS-BOT-BC249612  Castilleja applegatei subsp. pinetorum M. S. Taylor; B. Hammond 1982-8-27 5052 Lassen Crystal Peak, Diamont Mts, ca. 6 air mi sw of Doyle 2377 Comment
  CAS-BOT-BC249621  Castilleja applegatei subsp. pinetorum Mrs. A S. Baldwin 1927-5-19 s.n. Lassen Lava Beds 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
  CHSC91291  Castilleja applegatei subsp. pinetorum Lowell Ahart; John Dittes 2005-6-2 11929 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
  JEPS128167  Castilleja applegatei subsp. pinetorum M. C. Mahoney, J. A. Nash 2017-9-9 CA 350 -90 Lassen Fredonyer Mountain. 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
  UC444860  Castilleja applegatei subsp. pinetorum Franklin P. Nutting Lassen s of Eagle Lake (mountains) Comment
  UC506917  Castilleja applegatei subsp. pinetorum George A. Fischer, Irwin H. Johnson 1933-7-14 F- 259 Lassen Lassen Forest 1783 Comment
  CAS-BOT-BC243710  Castilleja applegatei var. pinetorum Clarence R. Quick 1961-6-21 61 -31 Lassen Adjacent to Road 21, Blacks Mountain Experimental Forest northeast of Lassen Peak 1798 Comment
  RSA523923  Castilleja arachnoidea Barbara J. Ertter 1988-7-25 7861 Lassen ridge of Diamond Mts, 1.5 miles E of Diamond Peak, 10 air miles due S of Susanville. 2287 Comment
  UC725999  Castilleja campestris subsp. campestris A. A. Heller 1938-6-23 15218 Lassen between Termo and Madeline (along U.S. Hwy 395) 1615 Comment
  JEPS127584  Castilleja chromosa B. Castro with L. P. Janeway 2015-6-5 2094 Lassen Great Basin. Near the SE corner of the Warner Mountains. Along W side of Tuledad Road ca 3 air mi NE of Dodge Reservoir and 0.5 road-mi S of W end of Tuledad Canyon, on gentle NE-facing slope. Little Hat Mtn 7.5' Quad. 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
  JEPS74943  Castilleja lacera T. I. and F. M. Chuang 1975-7-23 7556 Lassen just w Westwood (area of golf course) Comment
  JEPS80683  Castilleja lacera L. R. Heckard and T. I. Chuang 1981-6-10 5534 Lassen about 0.5 mi w Almanor Inn (or n road to Route 89) 1371 Comment
  UC1924561  Castilleja lacera Debra Valov 2006-5-29 2006033 Lassen Bieber off County Rd A2 c. 8.7 km east of Hwy 299 1285 Comment
  UC199376  Castilleja lacera Milo S. Baker 1900-1 Lassen Milford Comment
  CHSC1713  Castilleja linariifolia K. Chew 1954-7-17 Lassen 1615 Comment
  CHSC6268  Castilleja linariifolia P. Balch 1955-7-21 Lassen Willow Creek, Eagle Lake. 1463 Comment
  JEPS80682  Castilleja linariifolia L. R. Heckard and T. I. Chuang 1981-6-10 5533 Lassen e side (s end) Eagle Lake (along Route 139) 1524 Comment
  UC1542951  Castilleja linariifolia G. Schoolcraft 1987-9-1 1771 Lassen s side near top Observation Mtn. 2346 Comment
  CAS-BOT-BC244895  Castilleja miniata Clare B. Hardham 1969-8-28 17424 Lassen Granitic slope west of Janesville Comment
  CAS-BOT-BC244887  Castilleja miniata Alice Eastwood 1912-8-22 1784 Lassen trail from Morgans Springs to Sulphur Works. Lassen Butte Region. Comment
  CAS-BOT-BC244890  Castilleja miniata Alice Eastwood 1912-8-22 1808 Lassen Foot of Lassen Butte Comment
  CAS-BOT-BC244896  Castilleja miniata Clare B. Hardham 1971-8-22 18382 Lassen Granitic slope west of Janesville Comment
  CHSC6269  Castilleja miniata subsp. miniata J. B. Kimsey 1946-6-17 Lassen Mt. Fredonyer. Eagle Lake. 2133 Comment
  CHSC27743  Castilleja pilosa N. E. Heiken 1978-7-28 68 Lassen E of Eagle L., base of basalt jumble, along Lower Dry L. 1645 Comment
  CHSC37346  Castilleja pilosa Jenifer Estep 1978-6-27 17 Lassen SE of Eagle L. at Mahogany L. Comment
  CHSC5902  Castilleja pilosa J. B. Kimsey 1946-6-17 Lassen Mt. Fredonyer. Eagle Lake. 2133 Comment
  RSA59750  Castilleja psittacina E. K. Balls 1950-5-19 14778 Lassen 17.5 mi. W. of Madeline on rd. from Adin. 1677 Comment
  CHSC99131  Castilleja tenuis Lowell Ahart; John Dittes 2008-6-19 14874 Lassen Open hillside, about 100 yards east of Willow Creek, about 120 yards northeast of Highway 139, near Forest Road 36N02, about 19.6 miles east-southeast of Bieber. 1578 Comment
  RSA0035396  Castilleja tenuis Lowell Ahart, John Dittes 2008-6-20 14944 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
  UC1012485  Castilleja tenuis Francis W. Pennell 1940-6-7 25727 Lassen 8 mi e Nubieber (Route 299) 1310 Comment
  UC1063260  Castilleja tenuis A. Simontacchi 1940-6-5 812 Lassen 3.9 mi nw Cone Mtn.; Lassen National Forest, Halls Flat Quad. 1767 Comment
  UC1523759  Castilleja tenuis Gary Schoolcraft 1982-6-21 714 Lassen Ash Valley 1584 Comment
  UC1609289  Castilleja tenuis Vernon H. Oswald and Lowell Ahart 1993-6-28 5576 Lassen 0.2 mi n Highway 44 (Harvey Valley Rd. (33N02), e side of Grays Valley, e of Poison Lake); Grays Valley 1749 Comment
  UC773853  Castilleja tenuis L. R. Short and Wm. Gansberg 1936-6-8 S- 394 Lassen Burgess Spring Experimental Range; Lassen Forest 1743 Comment
  SJSU11528  Castilleja tenuis J. W. Tilden 1960-6-27 1514 Lassen by Moonlight Rd, 5 mi E of Westwood 1524 Comment
  NY608460  Caulanthus major var. nevadensis N. H. Holmgren 1978-6-11 8923 Lassen Painters Flat road, 28.3 km (17.6 miles) east of Ravendale and 23.5 km (14.5 miles) airline distance. 1740 Comment
  NY608462  Caulanthus major var. nevadensis G. Schoolcraft 1982-7-6 758 Lassen Fort Sage Mountains 1981.2 Comment
  UC1281477  Ceanothus X flexilis H. E. McMinn 1941-8-27 5403 Lassen 3.5 mi from Pine Cone Inn (and 5 mi from Nubieber); 5 mi from Nubieber Comment
  CAS-BOT-BC48530  Ceanothus cordulatus A. M. Vollmer; L. Beane 1953-7-1 31 Lassen Along Halls Flat road, beginning 6 miles west of Susanville, to MacArthur 1554 Comment
  UCD111387  Ceanothus cordulatus C. B. Heiser Jr. 1947-7-13 s.n. Lassen near Westwood. Comment
  CAS-BOT-BC48532  Ceanothus cordulatus Brighton C. Cain 1925-8-24 97 Lassen Mt. Lassen Volcanic National Park 1 mi. below Drakesbad 1645 Comment
  CHSC7725  Ceanothus cuneatus Berverly J. Wise 1969-4-21 91 Lassen 2.6 mi. south of Susanville on the Old Dump Rd. 1341 Comment
  CAS-BOT-BC52049  Ceanothus prostratus Barbara Shervanick 1974-5-7 1273 Lassen About 2 miles North of Milford on Highway 395, 1 mile Southwest of Honey Lake 1219 Comment
  CDA5726  Ceanothus prostratus Gary Schoolcraft 2000-4-25 2890 Lassen 3.5 miles north of Susanville along Highway 139. Comment
  CHSC107342  Ceanothus prostratus Lowell Ahart; John Dittes 2011-6-20 17496 Lassen Forest floor, about 40 yards west of the stream, about 300 yards north of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin. 1520 Comment
  JEPS118451  Ceanothus prostratus Lowell Ahart, John Dittes 2011-6-20 17496 Lassen Forest floor, about 40 yards west of the stream, about 300 yards north of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin 1520 Comment
  RSA152665  Ceanothus prostratus I. L. Wiggins, Dorothy B. Wiggins 1961-6-10 16317 Lassen 2 miles E. of Plumas-Lassen County line, along California Highway 36, near Westwood. Comment
  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
  SEINET5339354  Ceanothus prostratus W. Priest 1956-4-27 s.n. Lassen 2 miles north of Susanville on US 395 1524 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
  CHSC91290  Ceanothus velutinus var. velutinus Lowell Ahart; John Dittes 2005-6-2 11943 Lassen Along a small stream, about 1 1/2 miles northeast of the Anderson Ranch home, Long Valley, about 6 miles (air) north of the intersection of Scott Road and Highway 70, 7.5 miles (air) northwest of Hallelujah Junction. 1601 Comment
  CAS-BOT-BC184969  Cenchrus longispinus T. C. Fuller 1965-10-13 14198 Lassen On north side of old road to Susanville, 1 mile west of Johnstonville. Comment
  UCD130019  Centaurea diffusa T. C. Fuller 1962-8-28 9480 Lassen east side of Highway 395 to Madelaine, 1.6 mile north of Termo. Comment
  RSA121127  Centaurea repens E. Sawyer 1935-6-27 239 Lassen 5 miles NNE of Beckwith Pass Comment
  CHSC114170  Centaurea solstitialis R. E. Brainerd; N. Otting 2004-8-26 538 Lassen Highway 395 ca 30 miles northeast of Susanville. 1371 Comment
  CDA7341  Centaurea squarrosa Loring White Jul 1950 Lassen Kramer Ranch, Big Valley, just over line Modoc-Lassen. 0 Comment
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May 19 2009
  SEINET13331057 Image available Centaurea virgata subsp. squarrosa T. C. Fuller unknown s.n. Lassen Big Valley Comment
  UCD130125  Centaurea virgata subsp. squarrosa W. T. Parsons; T. C. Fuller 1960-7-26 4873 Lassen 4 miles north of Nubieber, Big Valley. Comment
  SEINET5343603 Image available Centaurea virgata var. squarrosa L. White 1950-8-9 s.n. Lassen Roadside and fields, Cramer Ranch, Big Valley Comment
  JEPS102715  Centaurium exaltatum Vernon H. Oswald 2001-9-26 10057 Lassen Dakin Unit of Honey Lake Wildlife Area. 1219 Comment
  JEPS46972  Centaurium exaltatum W. L. Jepson 1918-8-2 7759 Lassen Beckwith Pass 1463 Comment
  CAS-BOT-BC279594  Centromadia pungens subsp. pungens R. F. Hoover 1940-10-1 4657 Lassen Near Honey Lake, betw. Janesville and Standish Comment
  CHSC99981  Centromadia pungens subsp. pungens L. P. Janeway 2008-8-2 9523 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
  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
  CHSC29928  Cerastium fontanum subsp. vulgare Robin L. Ondricek 1978-6-16 77 Lassen In the meadow below the dam at Murrers Upper Meadow. 1548 Comment
  CAS-BOT-BC388199  Cerastium fontanum subsp. vulgare John Thomas Howell 1976-7-19 51990 Lassen On Gold Run Creek southwest of Susanville 1386 Comment
  RSA755002  Cerastium glomeratum L. Ahart, John Dittes 2008-6-20 14966 Lassen About 10-100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 air miles northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 air miles northeast of Bieber. 1264 Comment
  SD51284  Cercocarpus betuloides Darley F. Howe 1961-8-4 Lassen 12 miles east of Mc Arthur on US 299 Comment
  CDA25720  Cercocarpus ledifolius T. C. Fuller 1963-7-15 10899 Lassen Prescott Canyon, 2.5 miles north of Hayden Hill, ca. 15.5 miles south of Adin. 0 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
  SD8909  Chaenactis douglasii R. M. Austin Aug 1882 Lassen Comment
  CAS-BOT-BC276620  Chaenactis douglasii var. douglasii John Thomas Howell; Gordon H. True; Wayne Dakan 1974-7-30 50674 Lassen Summit ridge of Diamond Mountain 2346 Comment
  CHSC105256  Chaenactis douglasii var. douglasii Lowell Ahart; John Dittes 2010-7-31 16984 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
  CHSC23518  Chaenactis douglasii var. douglasii Wayne O. Baum 1971-7-6 71 -50 Lassen Slope of Gallatin Peak. 2011 Comment
  CHSC93690  Chaenactis douglasii var. douglasii Lowell Ahart; John Dittes 2005-6-1 11893 Lassen On the east side of Scott Road, Long Valley, about 4 3/8 miles (air) north of the intersection of Scott Road and Highway 70, about 5.7 miles (air) northwest of Hallelujah Junction. 1460 Comment
  UCR7839  Chaenactis douglasii var. douglasii Marilyn Malin 1968-6-19 250 Lassen Eagle Lake Biological Station[Chico State Biological Station], 50 ft. NE of the A-Frame cabin 59 Comment
  CAS-BOT-BC276613  Chaenactis douglasii var. douglasii David D. Keck; J. Clausen 1935-6-25 3755 Lassen Susanville, just W of town 1300 Comment
  HSC68932  Chaetadelpha wheeleri Gary Schoolcraft 1980-6-12 279 Lassen Near Skedaddle Creek on Wendel Hwy. 1238 Comment
  POM451345  Chamaebatiaria millefolium J. T. Howell 1934-7-9 12519 Lassen Pine Creek Flat Comment
  CHSC36489  Chamaesaracha nana Theresa Costa 1982-6-4 38 Lassen Jct of rd e Murrers Upper Meadow and rd to Dry Lakes. Comment
  CHSC65310  Chamaesyce serpillifolia subsp. serpillifolia Vernon H. Oswald; Lowell Ahart 1995-8-14 7178 Lassen Modoc Plateau. Hwy. 395 at the N end of a Mud Flat, 3.4 mi N of Smoke Creek Ranch Rd., N of Susanville. 1348 Comment
  UC17811  Chamaesyce serpyllifolia M. S. Baker and Frank Nutting 1894-7-24 Lassen Willow Creek Comment
  UC1924223  Chamaesyce serpyllifolia var. serpyllifolia Debra Valov 2004-6-8 2004251 Lassen Bieber; off County A2 c. 8 km east of Hwy 299 1271 Comment
  RSA0045636  Chamomilla suaveolens Lowell Ahart, John Dittes 2008-6-22 15024 Lassen End of a levee, about 100 yards east of the tall poles, 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
  CHSC6213  Cheilanthes gracillima P. Balch 1955-6-1 Lassen Silver Lake, Eagle Lake. 1981 Comment
  CAS-BOT-BC473048  Chenopodium Gary Schoolcraft 1984-8-21 1362 Lassen S. slopes of Fredonyer Mtn 1950 Comment
  CHSC65306  Chenopodium album Vernon H. Oswald; Lowell Ahart 1995-8-14 7180 Lassen Modoc Plateau. Hwy. 395 at the N end of a Mud Flat, 3.4 mi N of Smoke Creek Ranch Rd., N of Susanville. 1348 Comment
  UC1745664  Chenopodium chenopodioides Annetta M. Carter 1945-9-30 1726 Lassen Sam Webb place near end of Eagle Lake. 1554 Comment
  CHSC58839  Chenopodium nitens Vernon H. Oswald; Lowell Ahart 1992-7-16 5103 Lassen Long Lake on the S side of Hwy. 44 between Old Station and Susanville, 1.2 mi SE of County Rd. A21. 1745 Comment
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Nov 1 2014
  JEPS87185  Chenopodium nitens Vernon H. Oswald and Lowell Ahart 1992-7-16 5103 Lassen Long Lake on the S side of Hwy 44 between Oldo Station and Susanville, 1.2 mi SE of County Road A21. 1745 Comment
  CHSC76095  Chenopodium rubrum var. humile Lowell Ahart; Vernon H. Oswald 1999-9-13 8215 Lassen In a dry field, about 150 yards southwest of the parking area, about 1 mile south of the sign in station, Honey Lake Wildlife Area, 5 1/2 miles (air) southeast of Standish. 1207 Comment
  UC1483860  Chimaphila menziesii G. Schoolcraft 1980-7-15 311 Lassen on Big Valley Mt. timber sale area w. of Bieber 1798 Comment
  UC1483847  Chimaphila umbellata G. Schoolcraft 1980-7-29 343 Lassen on Big Valley Mt. timber sale area w. of Bieber 1798 Comment
  POM105904  Chorizanthe watsonii Marcus E. Jones 1897-6-18 s.n. Lassen Chat. [also Chats, a former settlement] 1524 Comment
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Mar 6 2011
  CAS-BOT-BC247862  Chorizanthe watsonii John Thomas Howell 1962-6-19 37885 Lassen 3 mi. s. of Hallelujah Junction 1524 Comment
  CHSC21064  Chrysolepis sempervirens M. S. Taylor 1975-7-16 842 Lassen On trail between Echo Lake and Summit Lake, Lassen National Park. 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
  SEINET8973626  Chrysolepis sempervirens W. Priest 1956-4-27 s.n. Lassen About 2 miles north of Susanville 1524 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
  CDA46  Chrysothamnus albidus O. W. Newman Aug 1915 s.n. Lassen Susanville. Comment
  CAS-BOT-BC106022  Chrysothamnus humilis R. K. Gierisch; D. H. Esplin 1969-8-27 3600 Lassen Lassen Forest 1706 Comment
  CAS-BOT-BC140659  Chrysothamnus humilis John Thomas Howell 1974-7-9 50485 Lassen SW of Wildcat Point, Eagle Lake 1554 Comment
  UC1137593  Chrysothamnus humilis L. R. Short and J. Warren 1936-8-17 S- 495 Lassen Burgess Spr. Exp. Range Lassen Forest 1760 Comment
  CHSC66850  Chrysothamnus viscidiflorus subsp. lanceolatus Vernon H. Oswald 1996-9-21 8287 Lassen Modoc Plateau. Willow Creek Wildlife Area on Hwy. 139 ca. 10 mi (air) N of Susanville. Levee, along the S edge of Willow Creek ca. 1 mi E of the parking area on the highway. 1490 Comment
  UCR268964  Chrysothamnus viscidiflorus subsp. puberulus Jim Andre 2013-7-12 31420 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
  CAS-BOT-BC105904  Chrysothamnus viscidiflorus subsp. viscidiflorus Elmer I. Applegate 1897-6-3 858 Lassen South end of Madeline Plains Comment
  SEINET515878  Chrysothamnus viscidiflorus subsp. viscidiflorus Vernon H. Oswald 1998-9-8 9587 Lassen Kramer Rd. 3.1 mi S of Lookout. 1280 Comment
  CHSC64794  Chylismia claviformis subsp. cruciformis Vernon H. Oswald 1995-5-24 6759 Lassen Modoc Plateau. Wendel Rd. (Lassen 320) 3.3 mi e of Amedee Rd. at Wendel. At the base of the Amedee Mtns. 1280 Comment
  UC1602277  Chylismia claviformis subsp. cruciformis J. Burtt Davy Jun 17 1897-Jun 24 1897 3399 Lassen Amedee Honey Lake Valley Comment
  POM35787  Cichorium intybus Marcus E. Jones 1897-6-26 s.n. Lassen Susanville, Perkin's Ranch. 1463 Comment
  POM352119  Cichorium intybus George Willet 1935-6-28 s.n. Lassen Susanville Comment
  UCD59781  Cinna latifolia John Thomas Howell; G. H. True 1973-8-1 50346 Lassen Gold Run Creek road south of Susanville, Diamond Range. 1950 Comment
  UCD159575  Cirsium arvense D. S. Park 2011-6-27 311 -2 Lassen East of Westwood. Growing near Willard Creek. Comment
  UCR67462  Cirsium arvense George K. Helmkamp 1990-9-23 A- 01 Lassen Northern Sierra Nevada Mountains, 3 mi east of Susanville, along State Road 36 1345 Comment
  CDA1124  Cirsium canescens T. C. Fuller 1966-7-22 14981 Lassen Madeline Plains 10 mi w. of Termo, 3 mi N of paved road. E of road at E base of Dry Valley Ridge, Madelaine Plains . Comment
  CDA1128  Cirsium canescens G. D. Barbe 1982-7-13 3881 Lassen Madeline Plain Scattered along Westside Rd. at base of Dry Valley Ridge, 3 mi. n. of Termo- Grasshopper Rd. 0 Comment
  CAS-BOT-BC278004  Cirsium cymosum T. C. Fuller 1959-7-7 2740 Lassen Hwy. 395, 7 miles north/road to Karlo Comment
  JEPS30610  Cirsium cymosum var. cymosum Peter H. Raven with Otto T. Solbrig 1958-6-17 13279 Lassen 13.1 mi s Ravendale (along U.S. Highway 395) Comment
  UC91792  Cirsium occidentale var. candidissimum T. S. Brandegee 1892-6-26 Lassen Milford Comment
  UCD170227  Cirsium occidentale var. candidissimum K. M. Meyer; A. Townesmith 2007-7-21 143 Lassen Lassen National Forest. 1.3 miles on road 110, off Highway A21. Mixed Pine and populus forest. Near Susan River. 1821 Comment
  CAS-BOT-BC285579  Cirsium occidentale var. candidissimum John Thomas Howell 1934-7-11 12563 Lassen Eldridge, 10 miles se. of Fall River Mills Comment
  CDA1527  Cirsium ochrocentrum T. C. Fuller 1966-7-22 14982 Lassen Madeline Plains 10 mi w. of Termo, 3 mi N of paved road. E of road at E base of Dry Valley Ridge, Madelaine Plains . Comment
  CDA1529  Cirsium ochrocentrum T. C. Fuller 1965-10-13 14200 Lassen Madeline Plains E base of Dry Valley Ridge, 10 mi. W of Termo, 3 mi N of Termo-Grasshopper Rd. Comment
  RSA186832  Cirsium ochrocentrum T. C. Fuller 1966-7-22 14980 Lassen East of road at the east base of Dry Valley Ridge, Madelaine Plains, 3 miles north of paved road, 10 miles west of Termo. Comment
  CAS-BOT-BC280439  Cirsium ochrocentrum T. C. Fuller 1966-7-22 14982 Lassen E. of rd. at the e. base of Dry Valley Ridge, Madelaine [Madeline] Plains, 3 mi. n. of paved road, 10 mi. w. of Termo Comment
  CAS-BOT-BC280440  Cirsium ochrocentrum T. C. Fuller 1966-7-22 14983 Lassen E. of rd. at the e. base of Dry Valley Ridge, Madelaine [Madeline] Plains, 3 mi. n. of paved road, 10 mi. w. of Termo Comment
  CAS-BOT-BC286304  Cirsium scariosum Alice Eastwood; John Thomas Howell 1940-6-11 7961 Lassen Eastern Fall River Valley Comment
  RSA504590  Cirsium scariosum Bruce Bartholomew 1988-6-25 4370 Lassen Long Valley, southern end of the Warner Mountains 2080 Comment
  CAS-BOT-BC285730  Cirsium vulgare John Thomas Howell; Gordon H. True 1973-8-1 50160 Lassen Gold Run Creek road south of Susanville, Diamond Range 1584 Comment
  CAS-BOT-BC439003  Cistanthe monosperma Milo S. Baker 1894-7-12 s.n. Lassen Pine Creek Comment
  CHSC66393  Clarkia gracilis subsp. gracilis Vernon H. Oswald; Lowell Ahart 1996-6-17 7792 Lassen Modoc Plateau. Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville. Just SW of the parking area at Devils Corral Trailhead. 1420 Comment
  CHSC6185  Clarkia purpurea subsp. viminea 1944-7-1 Lassen Eagle Lake. 1584 Comment
  UC1587045  Clarkia rhomboidea G. Schoolcraft 1991-7-30 2194 Lassen e side Widow Mountain 1889 Comment
  UC506933  Clarkia rhomboidea George A. Fischer, Irwin H. Johnson 1933-7-14 F 246 Lassen Lassen Forest 1767 Comment
  CHSC61223  Clarkia stellata P. V. Caldwell 1972-6-15 225 Lassen Eagle Lake: W face on Black Mtn. 1706 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
  CHSC108022  Claytonia rubra subsp. rubra Lowell Ahart; John Dittes 2011-6-20 17486 Lassen About 15 yards east of the stream, about 40 yards south of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin. 1520 Comment
  UC1136745  Claytonia rubra subsp. rubra A. Simontacchi 1940-5-13 700 Lassen 7.8 mi wsw Cone Ranch Heights; Lassen National Forest, Halls Flat Quad. 1920 Comment
  UC452681  Claytonia umbellata Milo S. Baker 1890-1 Lassen Milford Comment
  CHSC68621  Cleome platycarpa Vernon H. Oswald; Lowell Ahart 1997-5-7 8403 Lassen Smoke Creek Ranch Rd. 3.4 mi west of the CA-NV state line. Growing in disturbed roadside gravel. 1420 Comment
  NY222830  Cleome platycarpa G. H. True Jr. 1937-6-27 792 Lassen Near Skeedaddle. 1524.0 Comment
  CAS-BOT-BC423223  Cleomella plocasperma Marcus E. Jones 1897-6-23 s.n. Lassen Amedee 1219 Comment
  JEPS48621  Cleomella plocasperma Hilda W. Grinnell 1934-6-3 Lassen Amedee 1219 Comment
  SEINET5766959  Cleomella plocasperma A. Tiehm 1980-1 5746 Lassen North end of Honey Lake Valley, just north of Hot Springs 1.1 air miles NNW of Wendel. 1231 Comment
  POM93728  Cleomella plocasperma Marcus E. Jones 1897-6-23 s.n. Lassen Amedee. 1220 Comment
  RSA93741B  Cleomella plocasperma Marcus E. Jones 1897-6-24 s.n. Lassen 10 to 15 miles west from Amedee. 1220 Comment
  CHSC35898  Collinsia parviflora M. S. Taylor 1982-5-7 4427 Lassen Reno Junction on Hwy 70 just e of Beckwourth Pass. 1524 Comment
  CHSC64809  Collinsia parviflora Vernon H. Oswald 1995-5-31 6811 Lassen Modoc Plateau. Smoke Creek Ranch Rd. 1.7 mi e of Hwy. 395, between Litchfield and Ravendale. 1353 Comment
  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
  UC1032573  Collinsia parviflora A. Simontacchi 1940-5-10 691 Lassen 7.3 mi w of Harvey Mountain Lookout (Lassen National Forest); Lassen National Forest 1752 Comment
  RSA152668  Collinsia parviflora I. L. Wiggins, Dorothy Wiggins 1961-6-10 16322 Lassen Along California Highway 36 abut 6 miles W of Sussanville. Comment
  CHSC30572  Collomia grandiflora Sori H. Shad 1970-7-1 33 Lassen Found 3/4 mile past Murrer's. Meadow near edge of road. 1524 Comment
  POM126992  Collomia grandiflora Franklin P. Nutting 1894-7-12 s.n. Lassen Pine Creek Comment
  SEINET2445250  Collomia grandiflora Noel H. Holmgren, Patricia K. Holmgren 1980-7-4 9502 Lassen Observation Peak, south side of mountain. 18 km (11 mi) airline distance east of Ravendale.; 0 1890 Comment
  UC773904  Collomia grandiflora L. R. Short and J. Warren S- 362 Lassen Burgess Spr. Exp. Range Lassen <National> Forest 1844 Comment
  CHSC5005  Collomia tinctoria K. C. Newman 1967-7-2 59 Lassen Collected about 50 yds. NE of ELBS just beyond the men's dorm. 1554 Comment
  CHSC6200  Collomia tinctoria 1946-6-13 Lassen Eagle Lake. 1584 Comment
  UC699727  Collomia tinctoria Farris Farris 1936-6-15 Lassen Diamond Mountain 1828 Comment
  UC773938  Collomia tinctoria L. R. Short and J. Warren 1936-6-10 S- 382 Lassen Burgess Spring Experimental Range Lassen <National> Forest (timbered slopes) 1789 Comment
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Jun 17 2011
  JEPS121290  Conium maculatum Lowell Ahart, John Dittes 2013-7-23 18901 Lassen W side of the road levee, about 80 yards W of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley. Comment
  CHSC71887  Consolida ajacis Vernon H. Oswald; Lowell Ahart 1998-9-8 9584 Lassen Ash Creek and Big Swamp 2.2 mi north of Bieber on County Road 91 (Bieber-Lookout Rd.). Between the road and the marsh. 1258 Comment
  CAS-BOT-BC286112  Conyza canadensis John Thomas Howell; Gordon H. True 1973-8-1 50154 Lassen Gold Run Creek road south of Susanville, Diamond Range 1584 Comment
  UC1483856  Corallorhiza maculata G. Schoolcraft 1980-7-15 308 Lassen w Bieber; Big Valley Mountain timber sale area (Bureau of Land Managem 1798 Comment
  POM107536  Corallorhiza maculata Marcus E. Jones 1897-6-28 s.n. Lassen Diamond Mountain; Susanville; Perkins Ranch. 1829 Comment
  POM43099  Cordylanthus maritimus subsp. canescens Marcus E. Jones 1897-6-23 s.n. Lassen Amedee 1220 Comment
  UC199366  Cordylanthus maritimus subsp. canescens J. Burtt Davy Jun 17 1897-Jun 24 1897 3345 Lassen Honey Lake Valley Comment
  UCD117317  Cornus sericea P. B. Schultz 1967-7-12 77 Lassen 14 miles southeast of Adin on State Highway 139. 1524 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
  NY500130  Corydalis aurea subsp. aurea N. H. Holmgren 1980-7-4 9516 Lassen Observation Peak, near top of Mountain, 17 km (10.5 miles) airline distance east of Ravendale 2420 Comment
  CHSC83603  Crepis acuminata L. P. Janeway 2001-6-28 7234 Lassen High Cascade Range. Southwest flank of Cone Mountain, 0.5 km southwest of the summit; along Road 33N41Y 0.5 km southeast of Road 33N41YD. 1955 Comment
  UC773981  Crepis intermedia L. R. Short 1935-7-9 S- 509 B Lassen Burgess Spring Experiment Range 1818 Comment
  CAS-BOT-BC291551  Crepis intermedia G. L. Stebbins; J. A. Jenkins 1937-7-11 2328 Lassen Black Mountain 1 1/2 miles from summit 1889 Comment
  CDA20365  Crepis intermedia D. Tillotson 1942-6-1 s.n. Lassen Modoc Plateau; Secret Valley. 0 Comment
  UC581285  Crepis modocensis subsp. subacaulis G. L. Stebbins Jr. and J. A. Jenkins 1937-7-10 2278 Lassen Diamond Mt.; summit and e slope Comment
  UC30521  Crepis occidentalis J. Burtt Davy Jun 17 1897-Jun 24 1897 3406 Lassen Chat Honey Lake Valley Comment
  UC540880  Crepis occidentalis David D. Keck and J. Clausen 1935-6-25 3759 Lassen Susanville; just w of town 1340 Comment
  UC581198  Crepis occidentalis G. L. Stebbins Jr. and J. A. Jenkins 1937-7-7 2197 Lassen Inspiration Point Susanville (just w of town) Comment
  UC581304  Crepis occidentalis G. L. Stebbins Jr. and J. A. Jenkins 1937-7-15 2352 Lassen sw-facing slope of mts. along hwy from McArthur to Bieber; Big Valley Mts. 1100 Comment
  UC773984  Crepis occidentalis L. R. Short and Wm. Gansberg 1936-7-7 S- 476 Lassen Burgess Spring Experiment Station Lassen <National> Forest 1764 Comment
  SEINET7838805 Image available Crepis occidentalis J. A. Young 1982-6-9 s.n. Lassen Meyer's Ranch, Adin 1372 Comment
  CAS-BOT-BC376460  Crepis occidentalis subsp. pumila James Jokerst 1983-7-23 1868 Lassen Near Madeline Plains 1614 Comment
  CHSC5206  Crepis pleurocarpa 1944-6-28 Lassen Eagle Lake. 1584 Comment
  CHSC93565  Crepis pleurocarpa Lowell Ahart; John Dittes 2005-6-2 11934 Lassen Long Valley, along the poor dirt road, about 1/4 mile west of the Anderson Ranch home, about 4 3/4 miles (air) north of the interesection of Scott Road and Highway 70, 6.5 miles (air) northwest of Hallelujah Junction. 1498 Comment
  RSA716276  Crepis pleurocarpa L. Ahart, John Dittes 2005-6-2 11934 Lassen Along the poor dirt road, 1/4 mile W of the Anderson Ranch home, Long Valley about 4 3/4 miles air N of the intersection of Scott Road and Hwy 70, 6.5 miles air NW of Hallelujah jct. 1499 Comment
  POM70805  Cressa truxillensis Marcus E. Jones 1897-6-23 s.n. Lassen Amedee. 1220 Comment
  CAS-BOT-BC299711  Crocidium Wm. Anderson 1963-4-15 s.n. Lassen Harson Reservoir Comment
  UC1542943  Crocidium multicaule G. Schoolcraft 1987-4-29 1686 Lassen Ash Valley RNA 1554 Comment
  UC1587077  Crocidium multicaule G. Schoolcraft 1991-5-6 2131 Lassen 4.5 mi s Adin (along Hwy 139) 1325 Comment
  UCD59991  Crypsis vaginiflora R. Tofsrud 1947-7-1 246 Lassen Between Bieber and Nubieber. Comment
  NY1153786  Cryptantha affinis H. D. D. Ripley 1943-6-14 5720 Lassen West of Susanville 4750 Comment
  UCD119054  Cryptantha ambigua Robbins; Raynor 1943-6-1 s.n. Lassen Madeline. Comment
  CHSC106580  Cryptantha circumscissa C. Dow; D. Garrison 2008-5-3 Lassen Fort Sage Mtns. OHV Trailhead and Trail to Indian Springs. 1439 Comment
  JEPS67504  Cryptantha circumscissa W. L. Jepson 1918-8-2 7761 Lassen Beckwith Pass 1463 Comment
  SEINET10455878  Cryptantha circumscissa Douglas G. LeDoux, David B. Dunn 1973-5-25 LeDoux 879 Lassen Collected 3 mi N of Milford, on Hwy 395 at Honey Lake campgrounds. Comment
  SEINET201635  Cryptantha humilis Arthur Cronquist, Arthur H. Holmgren 1959-6-17 8465 Lassen 50 miles southeast of Susanville Comment
  UC1249274  Cryptantha intermedia Arthur Cronquist and Arthur H. Holmgren 1959-6-17 8480 Lassen 1 mi s Ravendale (40 mi ne of Susanville) 1615 Comment
  UC78602  Cryptantha pterocarya T. S. Brandegee 1892-6-22 Lassen Honey Lake Comment
  RSA123891  Cryptantha simulans G. A. Fischer, I. Johnson 1933-7-14 F- 260 Lassen Lassen Forest. 1784 Comment
  UC1037249  Cryptantha torreyana Leo Whitney 1934-7-5 1787 Lassen ca 14 mi w Eagle Lake (near Harvey Valley Spring); Lassen National Forest, Harvey Valley 1737 Comment
  HSC68930  Cryptantha watsonii Gary Schoolcraft 1980-5-7 219 Lassen On Honey Lake Island 1220 Comment
  RSA262506  Cuscuta approximata Lee Smith 1975-9-4 s.n. Lassen A1 Blickenstaff Farm, near Honey Lake, 3 miles south of Janesville. Comment
  UCD54418  Cuscuta approximata Jerry Schmierer 1986-9-1 s.n. Lassen Don Blickenstaff Ranch. Comment
  SEINET7897188  Cuscuta californica var. californica B. L. Wilson, D. Lytjen, N. Otting 2005-7-25 11445 Lassen Along Highway 395 at Mud Flat, north of Susanville 1347 Comment
  CHSC110773  Cuscuta howelliana Dean Wm. Taylor 2012-7-18 21275 Lassen Windmill Flat (tributary Juniper Creek, Pit River watershed, 11 miles S of Aden). 1706 Comment
  CHSC59701  Cusickiella douglasii Mary Meyer 1980-7-15 Lassen 1546 Comment
  NY704022  Cusickiella douglasii N. H. Holmgren 1978-6-11 8926 Lassen Upper Smoke Creek, southeast side of Observation Peak, 11.3 km (7 mi) northeast of Rye Patch Canyon summit, 21 km (13 mi) air distance east-southeast of Ravendale 1700 Comment
  UC569547  Cyperus squarrosus H. S. Yates 1936-8-11 6065 Lassen Baxter Creek Susanville Quad., Baxter Creek 1280 Comment
  JEPS32210  Damasonium californicum Jos. Grinnell 1928-6-26 Lassen Poison Lake Lassen Peak Region, Poison Lake 1737 Comment
  SBBG45003  Damasonium californicum C. L. Hitchcock 1940-5-26 6646 Lassen overflow of Pitt River, 1 mi W of Bieber Comment
  UC1130604  Damasonium californicum A. Simontacchi 1940-7-4 914 Lassen s. shore Government Lake; Lassen Nat'l Forest, Halls Flat Quad., Government Lake Comment
  SEINET3828852  Damasonium californicum R. F. Thorne, Larry E. De Buhr 1975-1 46995 Lassen Along Highway 395 ca. 5 miles north of Madeline and ca. 5.5 iles south of Modoc county line. 1615 Comment
  CHSC48859  Dasiphora fruticosa Vernon Oswald 1986-8-7 2270 Lassen Hwy 36, 12.6 mi e of the Lassen-Plumas County line, 0.8 mi e of Fredonyer Pass. Roadcut. 1706 Comment
  HSC41628  Deinandra lobbii Barbara Kelly 1977-8-10 581 Lassen Along Adin Susanville Road, mileage marker 23.0, S of Adin Comment
  CAS-BOT-BC1424  Delphinium andersonii David Daniels Keck; J. Clausen 1935-6-24 3748 Lassen 2 mi. S of Ravendale 1464 Comment
  UC1924575  Delphinium andersonii Debra Valov 2006-5-29 2006026 Lassen Bieber off County Rd A2 c. 8.7 km east of Hwy 299 1275 Comment
  UC579715  Delphinium andersonii David D. Keck and J. Clausen 1935-6-24 3748 Lassen 2 mi s Ravendale 1464 Comment
  HSC79826  Delphinium depauperatum William Rothstrom 1975-6-9 Lassen Near Day, 1.0 mi. E of large cinder pit mine 1280 Comment
  CHSC6242  Delphinium glaucum A. Santos 1946-6-20 Lassen Eagle Lake. Grasshopper Valley. 1624 Comment
  CAS-BOT-BC9946  Delphinium nudicaule Mrs. Baldwin 1928-5-10 N. S. Lassen Coyote Flat. Comment
  CHSC11768  Delphinium nudicaule Wayne O. Baum 1971-6-22 71 -2 Lassen West side of Rd. 5 approx. 1/4 mi. S. of five corners. 1767 Comment
  UC1143008  Delphinium nudicaule August L. Hormay 1934-5-11 Lassen 4 mi nw Hall's Flat; Lassen National Forest 1676 Comment
  HSC27070  Delphinium nudicaule John Pratt 1970-6-11 4 Lassen Fredonyer Pass 1738 Comment
  HSC27049  Delphinium nuttallianum D. H. Norris, Thomas W. Nelson, S. Dowty 1971-6-22 19195 Lassen Harvey Valley near Cone Springs Comment
  HSC27054  Delphinium nuttallianum John Pratt 1970-6-11 5 Lassen Fredonyer Pass 1738 Comment
  POM203128  Deschampsia cespitosa subsp. cespitosa J. T. Howell 1934-7-9 12517 Lassen Bridges Creek Spring. Comment
  UC60239  Deschampsia cespitosa subsp. cespitosa M. S. Baker and F. Nutting July 1894 Lassen Eagle Lake 1524 Comment
  HSC9591  Deschampsia danthonioides D. E. Anderson 1969-7-5 4994 Lassen Freedonyer Pass, 15 mi. W of Susanville 1752 Comment
  POM114878  Deschampsia danthonioides Marcus E. Jones 1897-6-30 s.n. Lassen Eagle Lake, 27 miles from Susanville. 1524 Comment
  UC1024884  Deschampsia danthonioides Leo Whitney 1935-5-26 3137 Lassen 10 mi. e. Adin (Ash Creek); Ash Creek Comment
  UC1024890  Deschampsia danthonioides Leo Whitney 1935-5-27 3124 Lassen Bieber 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
  UCD61878  Deschampsia danthonioides A. A. Beetle 1941-6-28 2799 Lassen 10 miles W of Chester. 1524 Comment
  UCD62833  Deschampsia danthonioides Malcolm A. Nobs; S. Galen Smith 1949-7-21 1059 Lassen 4 miles N of Madeline. Comment
  CHSC4784  Descurainia pinnata R. Carter 1967-7-7 578 Lassen Collected outside cafeteria, N side, 15 yds. from building. Eagle Lake Biology Station. Comment
  CAS-BOT-BC43164  Descurainia pinnata subsp. brachycarpa John Thomas Howell 1976-7-20 52023 Lassen Sierra Nevada. Bottom flatas along Willard Creek near its confluence with Susana River. 1432 Comment
  JEPS107794  Descurainia sophia Lowell Ahart 2005-6-2 11925 A Lassen near the Anderson Ranch home, Long Valley, about 4 3/4 air mi N of intersection of Scott Road and Hwy 70, 6.2 air mi NW of Hallelujah Junction 1459 Comment
  UC1924260  Descurainia sophia Debra Valov 2004-5-31 2004227 Lassen Bieber; off County A2 c. 8 km east of Hwy 299 1274 Comment
  CAS-BOT-BC43484  Descurainia sophia Ira L. Wiggins; Dorothy B. Wiggins 1961-6-11 16334 Lassen 13.5 miles east of Susanville. Comment
  CAS-BOT-BC292259  Dieteria canescens John Thomas Howell 1974-7-8 50470 Lassen Susanville 1295 Comment
  CHSC45007  Dieteria canescens var. shastensis Lowell Ahart; John Thomas Howell 1974-7-9 539 Lassen Near the south edge of Eagle Lake. 1584 Comment
  CAS-BOT-BC153675  Diplacus mephiticus M. S. Baker; Frank Nutting 1894-7-12 s.n. Lassen Pine Creek Comment
  CAS-BOT-BC153676  Diplacus mephiticus Alice Eastwood; John Thomas Howell 1940-6-15 8325 Lassen Grasshopper Valley Comment
  CHSC67069  Diplacus mephiticus Willis Ball 1969-6-19 10 Lassen Found in old dry Eagle Lake basin about 1/2 mile N.E. of E.L.B.S. 1554 Comment
  CHSC9543  Diplacus mephiticus A. W. Harvilik 1967-6-24 36 Lassen Collected near the gas pump at Eagle Lake Biological Station. 1554 Comment
  SEINET13704195  Diplacus mephiticus A. A. Heller, P. B. Kennedy 1907-7-1 8672 Lassen Near Old Chat. 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
  CAS-BOT-BC208723  Distichlis spicata C. S. Robinson 1928-9-18 119 Lassen Hanna Estate, Morgan Springs 1508 Comment
  CHSC67075  Distichlis spicata Willis Ball 1969-6-19 11 Lassen Found in dry Eagle Lake basin about 1/2 mile N.E. of E.L.B.S. 1554 Comment
  HSC9639  Distichlis spicata M. T. Milligan 1964-8-6 199 Lassen Eagle Lake, near shore at Eagle Lake General Store. 1677 Comment
  UC580711  Distichlis spicata E. Sawyer 1935-6-27 214 Lassen Long Valley 1310 Comment
  SEINET10929826  Distichlis spicata var. stricta Alan A. Beetle 1941-6-28 Beetle 2807 Lassen 6 miles south of Ravendale, lower slopes of Observation Peak, open meadow. Assoc. Stipa pulchra, Hordeum, Koeleria cristata. Comment
  CAS-BOT-BC136180  Dodecatheon alpinum John Thomas Howell 1934-6-14 12114 Lassen Near Lost Lake - Warner Mountains 2438 Comment
  CHSC36491  Dodecatheon alpinum Theresa Costa 1982-6-4 35 Lassen Murrers Upper Meadow. Comment
  CHSC7735  Dodecatheon alpinum Beverley J. Wise 1969-4-20 82 Lassen 14.7 mi. north of Susanville on Hwy 139. 1463 Comment
  NY677195  Dodecatheon conjugens G. Schoolcraft 1988-4-25 1783 Lassen Ash Valley RNA/ACEC 16 miles east of Adin 1554 Comment
  UC1137728  Dodecatheon conjugens L. R. Short 1936-4-28 S- 331 Lassen Burgess Spr. Exp. Range Lassen Forest, Burgess Spr. Exp. Range 1767 Comment
  UC559942  Dodecatheon conjugens Leo Whitney 1935-6-11 3225 Lassen Camp 10 Fruit Growers Supply Company Camp 10, Fruit Growers Supply Company Comment
  CHSC29898  Dodecatheon jeffreyi Robin L. Ondricek 1978-7-7 92 Lassen Below the dam at Murrers Upper Meadow. 1548 Comment
  CHSC23459  Downingia K. R. Stern 1973-4-18 5853 Lassen Drying vernal pool area, ca. 0.2 mi n of Hwy 44 on Pittsville Rd. Comment
  CHSC117297  Downingia bacigalupii Lowell Ahart; John Dittes 2016-7-13 21116 Lassen Strand of the pond, 100 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. 1289 Comment
  CHSC60886  Downingia bacigalupii Vernon H. Owald; Lowell Ahart 1993-7-8 5677 Lassen N. side of 34N12 just E of the railroad at Halls Flat Well, ca. 11 mi (air) NNW of Poison Lake. 1737 Comment
  SJSU3292  Downingia bacigalupii J. W. Tilden 1960-6-27 1525 Lassen 5 mi E of Westwood on Moonlight Rd 1524 Comment
  UC1191995  Downingia bacigalupii Verne Grant and Irving Schneider 1947-7-31 8209 Lassen ne quarter George Williams section 19; Madeline Plain Comment
  UC1243994  Downingia bacigalupii John H. Weiler 1959-6-28 59304 Lassen 2.9 mi s Siskiyou County line (in Lassen County along Highway 89); Dickson Flat Comment
  UCD33603  Downingia bacigalupii Beecher Crampton 1970-6-26 8637 a Lassen Lassen County, ca. 5 miles west of Susanville. 1524 Comment
  SEINET10461289  Downingia bicornuta var. bicornuta Mary Merello 1993-6-27 Merello 744 Lassen Lassen National Forest at intersection of Forest Service Road 32N15 and Hwy. 94. Open conifer woodlands, dry. 1700 Comment
  UC890609  Downingia bicornuta var. bicornuta Elmer I. Applegate 1929-6-24 5883 Lassen just n Bieber (nw corner of Lassen County) Comment
  SEINET12329657  Downingia elegans N. H. Holmgren, Holmgren, P. K. 1978-1 8902 Lassen Madeline Plains, Coyote flat, 14.5 km (9 mi.) east-northeast of Termo and 13 km (8 mi.) airline 1630 Comment
  JEPS23858  Downingia insignis Peter H. Raven 1958-6-17 13282 Lassen 1.9 mi s Ravendale (along U.S. Highway 295) Comment
  UC1188739  Downingia insignis John H. Weiler, L. Constance, and E. Molseed 1960-6-13 60163 Lassen 1.7 mi s Ravendale (w side of U.S. Highway 395) Comment
  UC614648  Downingia insignis L. Constance 1938-6-11 2328 Lassen Litchfield, overflow of the Susan River Susan River 1219 Comment
  CAS-BOT-BC266471  Downingia laeta Wm. Anderson 1960-6-16 s.n. Lassen Along county road 0.25 mile S of Mapes Ranch, Honey Lake Valley Comment
  CHSC61140  Draba verna var. aestivalis Vernon H. Oswald; Lowell Ahart 1993-5-12 5391 Lassen Butte Lake Rd., 1.4 mi S of Hwy. 44, between Old Station and Poison Lake. Along the road. 1652 Comment
  JEPS97330  Drosera anglica Vernon H. Oswald 1995-8-21 7216 Lassen T38N R15E Sec. 20, 6100 ft, Warner Mtns., Fresh-water Marsh in Yellow Pine Forest. Blue Lake located ca. 13 mi SE of Likely 1859 Comment
  CAS-BOT-BC401538  Drosera rotundifolia G. Schoolcraft 1997-8-5 2648 Lassen Along Robbers Creek near Robbers Spring 1798 Comment
  CAS-BOT-BC527338  Drymocallis glandulosa var. reflexa John Thomas Howell 1977-6-22 52405 Lassen West of Susanville near the confluence of Willard Creek and Susan River, Sierra Nevada 1432 Comment
  UC1483817  Eatonella nivea G. Schoolcraft 1980-5-8 226 Lassen sw of Herlong 1255 Comment
  JEPS95911  Elaeagnus angustifolia Lowell Ahart 1999-9-13 8223 Lassen on the north side of Mapes Road; about 1/2 mile east of Lambert Lane; about 3 1/2 miles (air) southeast of Standish 1210 Comment
  CHSC112423  Elatine Lowell Ahart; John Dittes, Todd Sloat 2013-6-8 18752 Lassen Plants near pond, about 80 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  JEPS123973  Elatine Lowell Ahart, John Dittes 2015-7-13 20297 Lassen Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. Comment
  UCR198140  Elatine chilensis Daniel B. Marcum 2007-7-25 s.n. Lassen 6 mi south of Bieber in Big Valley. Robin Harbert's wild rice field 1280 Comment
  CAS-BOT-BC113620  Eleocharis acicularis R. K. Gierisch; D. H. Esplin 1969-8-26 3596 Lassen Harvey Valley 1676 Comment
  CHSC117180  Eleocharis bella Lowell Ahart; John Dittes 2016-6-7 21015 Lassen 10 yards west of State Highway 299, Big Valley Mountains, 0.4 mile (air) northeast of Big Valley Summit, 5.0 miles (air) southwest of Bieber. 1397 Comment
  UC1142940  Eleocharis palustris A. L. Hormay 1941-6-18 2 Lassen Little Harvey Valley 1676 Comment
  CAS-BOT-BC203831  Elymus X hansenii David D. Keck; J. Clausen 1935-6-24 3751 Lassen 2 mi. S. of Ravendale 1464 Comment
  UCD62817  Elymus X saundersii Beecher Crampton 1960-6-18 5716 Lassen Southern Warner Mtns., vicinity of Blue Lake Ranch. 1981 Comment
  UCD62904  Elymus X saundersii Lester J. Berry 1960-7-8 Lassen Burgess Springs Road, floor of Harvey Valley, ca. 7 miles S of Black's Mtn. Exper. Station, USDA. Comment
  CHSC117535  Elymus caput-medusae Lowell Ahart; John Dittes 2016-7-13 21145 Lassen Scattered along the west edge of the pond, 100 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. 1289 Comment
  UCD61421  Elymus elymoides L. D. Whitney 1935-6-27 Lassen Squaw Valley. Comment
  UCD61568  Elymus elymoides L. Whitney 1933-8-15 Lassen Halls Flat. Lassen Forest. 1737 Comment
  UC1136930  Elymus elymoides subsp. elymoides George A. Fischer and Irwin H. Johnson 1933-7-12 F 214 Lassen Lassen <National> Forest 1722 Comment
  UC1136931  Elymus elymoides subsp. elymoides L. R. Short and J. Warren 1936-6-29 S- 461 Lassen Burgess Spr. Exp. Range Lassen <National> Forest 1820 Comment
  CHSC118823  Elymus elymoides var. californicus L. P. Janeway; B Castro 2015-6-5 11762 Lassen Great Basin, Modoc Plateau. Along the road from the south end of Surprise Valley to Tuledad Canyon, 7.4 road-km south of Surprise Valley Road; 1.4 air-km northwest of Mahogany Mtn. 1731 Comment
  CHSC112796  Elymus glaucus Lowell Ahart; John Dittes 2013-7-23 18893 Lassen About 30 feet northeast of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CAS-BOT-BC213802  Elymus repens John Thomas Howell 1973-7-10 49791 Lassen Ruderal in city park, Susanville - Sierra Nevada 1295 Comment
  RSA795327  Elymus repens L. Ahart, John Dittes 2010-7-31 17017 Lassen On the south side of the road, about 20 yards east of the large culvert, where the road crosses Hunsinger Draw, 1.9 air miles northwest of Moll Reservoir, 2.8 air miles west of Ash Valley, 8.4 air miles southeast of Adin. 1516 Comment
  UCR17291  Elymus spicatus Frank C. Vasek 1975-7-11 750711- 02 Lassen Modoc Plateau, State Hwy 139, [Said Valley] 2 mi north of Grasshopper Valley at the junction with Termo Rd. 1650 Comment
  UC1024916  Elymus trachycaulus Leo Whitney 1935-6-29 3362 Lassen Bieber Comment
  CHSC114411  Elymus trachycaulus subsp. trachycaulus Don Lepley 2014-6-26 Lassen Lassen National Forest; Eagle Lake Ranger District. Two air miles east of Diamond Mountain summit, in landing at end of Road 28N52A. 2133 Comment
  POM119924  Ephedra californica Marcus E. Jones 1897-6-23 s.n. Lassen Amedee 1220 Comment
  CHSC23330  Ephedra viridis Mark Stopher 1976-1-11 29 Lassen Ca. 52 miles south of Susanville on Hwy. 395 then two miles east on Red Rock Road. 1328 Comment
  CHSC89  Ephedra viridis 1928-5-28 Lassen Antelope grade north of Susanville. 1615 Comment
  HSC1306  Ephedra viridis J. W. Bosworth 1965-5-1 31 Lassen 20 mi. N of Susanville on Hwy. 395 1220 Comment
  HSC1311  Ephedra viridis L. H. Myers 1963-4-14 35 Lassen 2 mi. S of Hwy. 395, Doyle 1372 Comment
  RSA245293  Ephedra viridis D. H. Norris, T. Nelson, S. Dowty 1971-6-22 19306 Lassen Along Hwy 395 about 4 miles E of Standish Comment
  UCD14623  Ephedra viridis Nathan Horn 1989-5-18 14 Lassen Great Basin, along Highway 70. 1487 Comment
  SEINET10532255  Ephedra viridis Douglas G. LeDoux, David B. Dunn 1973-5-25 LeDoux 893 Lassen Collected 3 mi N of Milford, Callif., on Hwy 395 at Honey Lake campgrounds. Comment
  SEINET11739305  Ephedra viridis M. Sacks, Detzer 1977-1 13 Lassen 4 km S of Hwy 395 1386 Comment
  SEINET5335198  Ephedra viridis F. B. Headley 1915-5-28 s.n. Lassen Honey Lake Comment
  HSC16378  Epilobium anagallidifolium M. T. Milligan 1964-7-16 143 Lassen 2 mi. W on Silver Lake Rd., along Upper Susan River 1829 Comment
  CHSC29866  Epilobium brachycarpum Robin L. Ondricek 1978-6-27 72 Lassen .6 mi n of Five Corners along road to ELFS. 1706 Comment
  RSA0105578  Epilobium brachycarpum Lowell Ahart, John Dittes 2013-7-22 18845 Lassen About 10 yards east of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  UC1137772  Epilobium brachycarpum August L. Hormay 1934-7-2 Lassen Black's Mtn. Headquarters Lassen National Forest 1706 Comment
  UCR67373  Epilobium brachycarpum George K. Helmkamp 1990-9-23 E- 17 Lassen 20 mi north of Litchfield along US Hwy 395 1437 Comment
  HSC16337  Epilobium brachycarpum M. T. Milligan 1964-8-23 237 Lassen Above Eagles Nest on main road, Eagle Lake 1829 Comment
  JEPS117579  Epilobium campestre Lowell Ahart, John Dittes 2010-7-31 16996 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
  CHSC27073  Epilobium ciliatum subsp. ciliatum Robert A. Schlising 1978-8-3 3334 Lassen SE of Eagle Lake at Murrers Upper Meadow. North end of meadow. Comment
  HSC95335  Epilobium ciliatum subsp. ciliatum Gordon Leppig 1998-8-17 1054 Lassen Modoc National Forest, Blue Lake Ranch 1970 Comment
  HSC68920  Epilobium ciliatum subsp. glandulosum Gary Schoolcraft 1980-7-16 315 Lassen Near Nelson Corral Reservoir 1805 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
  CHSC58845  Epilobium densiflorum Vernon H. Oswald; Lowell Ahart 1992-7-16 5110 Lassen Bridge Creek entering McCoy Flat Reservoir on the S side of Hwy. 44 between Old Station and Susanville. On the bed of the creek on the bed of the reservoir. 1691 Comment
  UC1924202  Epilobium densiflorum Debra Valov 2005-8-20 2005223 Lassen Bieber; off County A2 c. 8 km east of Hwy 299 1271 Comment
  HSC26606  Epilobium hallianum D. H. Norris, Thomas W. Nelson, S. Dowty 1971-6-22 19179 Lassen Harvey Valley near Cone Springs Comment
  UC1924264  Epilobium hallianum Debra Valov 2005-8-20 2005226 Lassen Bieber; off County A2 c. 8 km east of Hwy 299 1271 Comment
  CHSC59091  Epilobium hornemannii subsp. hornemannii Vernon H. Oswald; Lowell Ahart 1992-8-25 5184 Lassen Lassen Volcanic National Park. Grassy Creek at the S end of Snag Lake. Along the bottom of a cutbank of a creek where it enters the lake. 1853 Comment
  GMDRC6955  Epilobium pallidum J. M. Andre, T. La Doux, Senna & Elias Andre 2013-7-12 31430 Lassen along north side of Hwy 44 at south end of Grays Valley, along NF Rd# 33N02, north of Bogard Buttes, about 30 mi. west of Susanville. 1733 Comment
  HSC82195  Epilobium torreyi Thomas W. Nelson, Jane P. Nelson 1980-7-6 6050 Lassen Along Ash Creek at Ash Creek Campground 1494 Comment
  JEPS77524  Equisetum hyemale subsp. affine L. R. Heckard with T. I. Chuang and R. C. Bacigalupi 1978-7-20 4894 Lassen junction of Blue Lake turn-off with Likely-Patterson Guard Station rd.; Warner Mts. 1889 Comment
  CAS-BOT-BC57307  Equisetum laevigatum John Thomas Howell 1974-7-8 50473 Lassen Susanville 1295 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
  CDA34254  Eragrostis pectinacea var. pectinacea L. Ahart, J. Dittes 2010-8-31 17092 Lassen On the west side of Walters Road, 4235 feet south of Modoc County Line, about 4.3 miles (air) south-southwest of Adin, and about 7.0 miles (air) northeast of Bieber, Big Valley. Comment
  CAS-BOT-BC174122  Eremogone aculeata Clare B. Hardham 1971-8-22 18426 Lassen Diamond Mountain 2346 Comment
  CAS-BOT-BC174201  Eremogone congesta var. congesta Clarence R. Quick 1964-7-29 64 -88 Lassen Blacks Mt. Experimental Forest 1798 Comment
  NY1057003  Eremogone congesta var. simulans B. J. Ertter 1987-6-16 7193 Lassen Skeedaddle Mountains on northeast side of Honey Lake; saddle on east side of Hot Springs Peak 2195 Comment
  CHSC66382  Eremogone congesta var. subcongesta Vernon H. Oswald; Lowell Ahart 1996-6-17 7798 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
  CHSC67078  Eremogone congesta var. subcongesta Jeanne Boze 1981-6-11 104 Lassen Along roadside, ca. 6 mi. from Hwy. 139 on Horse Lake Rd. 1737 Comment
  CHSC72310  Eremogone congesta var. subcongesta L. P. Janeway; Glenn Clifton 1998-7-9 5730 Lassen Ridgetop saddle, 1.0 mi east of Diamond Mtn. 2215 Comment
  SEINET12875575 Image available Eremogone congesta var. subcongesta John Thomas Howell 1977-1 52401 Lassen North end of Eagle Lake 1585 Comment
  CAS-BOT-BC159993  Eremothera boothii subsp. alyssoides A. A. Heller 1938-6-23 15212 Lassen North of Balls Canyon on U. S. Highway #395 Comment
  CAS-BOT-BC159999  Eremothera boothii subsp. alyssoides Mrs. H. C. Cantelow 1941-5-22 s.n. Lassen 7 miles south of Secret Valley C.C.C. Camp Comment
  SEINET14592139  Eriastrum signatum R. R. Halse 2004-7-21 6669 Lassen At junction of US Hwy 395 and State Road A 26, ca 11 miles SE of Milford. 1274 Comment
  UC1123886  Eriastrum signatum E. Sawyer 1935-6-29 222 Lassen Long Valley Sierraville Quadrangle 1310 Comment
  CAS-BOT-BC515171  Eriastrum signatum Lewis S. Rose 1934-7-25 34410 Lassen Reno Jct. 1371 Comment
  JEPS14040  Eriastrum wilcoxii Rimo Bacigalupi with G. T. Robbins 1955-7-21 5418 Lassen along Smoke Creek rd. 6.8 mi e U.S. Highway 395 (s edge of valley); Secret Valley Comment
  SJSU8732  Eriastrum wilcoxii M. D. Fleschner 1965-7-12 Lassen by Hwy 395, 1 mi N of Milburn 1158 Comment
  SEINET5741365 Image available Ericameria bloomeri Lowell E. Urbatsch, Vensa Karaman 2000-1 7714 Lassen Collected along Forest Road 37N11, off of CA 139. 1220 Comment
  UC1523743  Ericameria bloomeri Gary Schoolcraft 1981-8-25 565 Lassen w side of Eagle Lake (along main road) Comment
  UC1776669  Ericameria bloomeri G. Schoolcraft 1994-9-13 2428 Lassen Just above gate along road to Fredonyer Pk. lookout 2255 Comment
  CAS-BOT-BC298182  Ericameria nauseosa var. oreophila C. B. Wolf 1931-9-5 2401 Lassen 0.75 mile E of Termo 1645 Comment
  JEPS21521  Ericameria nauseosa var. oreophila R. F. Hoover 1940-9-28 4638 Lassen Leavitt Comment
  JEPS21524  Ericameria nauseosa var. oreophila W. L. Jepson 1918-8-4 7808 Lassen Horse Lake 1554 Comment
  RSA518408  Ericameria nauseosa var. oreophila George K. Helmkamp 1990-9-23 A- 2 Lassen 3 mi E of Susanville, along state road 36. 1345 Comment
  UCD54535  Ericameria nauseosa var. oreophila Ellen Dean; Petra Unger, Dawn Cunningham 2005-10-10 2720 Lassen E. of town of Susanville, along C.R. A27 (Center Rd.) Grounds of California Correctional Facility. Sewage treatment plant area. 1247 Comment
  CAS-BOT-BC294183  Ericameria nauseosa var. speciosa Clare B. Hardham 1969-8-28 17426 Lassen West of Janesville Comment
  UC773958  Ericameria nauseosa var. speciosa L. R. Short 1936-9-30 S- 504 Lassen Burgess Spring Experiment Range Lassen Forest 1755 Comment
  UC773959  Ericameria nauseosa var. speciosa L. R. Short 1936-9-14 S- 503 Lassen Burgess Spring Experiment Range Lassen Forest 1761 Comment
  CAS-BOT-BC299485  Ericameria nauseosa var. washoensis Gary Schoolcraft 1979-8-23 181 Lassen Just off Post Camp Road along road to Big Spring 1676 Comment
  CAS-BOT-BC299486  Ericameria nauseosa var. washoensis Gary Schoolcraft 1984-9-11 1375 Lassen Along Hwy. 395 about 1/2 mile south of Ramhorn Campground Road 1615 Comment
  CAS-BOT-BC293011  Ericameria parryi var. nevadensis G. Schoolcraft 1992-8-19 2250 Lassen About 5 mi. west of Susanville, s. of river 1432 Comment
  RSA42038  Erigeron aphanactis Ella Dales Cantelow 1941-5-24 3567 Lassen Balls Canyon S of Secret Valley; U. S. Hwy. 395 Comment
  CHSC64863  Erigeron aphanactis var. aphanactis Vernon H. Oswald; Lowell Ahart 1995-6-19 6890 Lassen Modoc Plateau. Between Litchfield and Ravendale on Smoke Creek Ranch Rd., 3.6 mi e of Hwy. 395. On the s side of the road. 1353 Comment
  UC1118123  Erigeron aphanactis var. aphanactis E. Sawyer 1935-6-27 11506 Lassen Long Valley Sierraville Quad., Long Valley 1341 Comment
  UC87724  Erigeron aphanactis var. aphanactis unknown 1892-6-22 Lassen Honey Lake Comment
  UCR244068  Erigeron aphanactis var. aphanactis Jim Andre, G. L. Clifton 1993-6-9 19694 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
  RSA0049609  Erigeron aphanactis var. congestus Dean Wm. Taylor 2012-6-7 21229 Lassen Grasshopper Valley; Grasshopper Valley Road 2.3 road miles E of junction with Highway 139 1635 Comment
  JEPS41560  Erigeron bloomeri Franklin P. Nutting Lassen Dixey Valley Comment
  CHSC4947  Erigeron bloomeri var. bloomeri R. Carter 1967-6-23 545 Lassen Growing 10 yds off s side rd. Comment
  CHSC99139  Erigeron bloomeri var. bloomeri Lowell Ahart; John Dittes 2008-6-19 14894 Lassen Open hillside, about 100 yards east of Willow Creek, about 120 yards northeast of Highway 139, near Forest Road 36N02, about 19.6 miles east-southeast of Bieber. 1578 Comment
  UC1118090  Erigeron bloomeri var. bloomeri A. Simontacchi 1940-6-12 848 Lassen 3.7 mi sse Blacks Mtn.; Lassen National Forest, Halls Flat Quadrangle Comment
  UC1368785  Erigeron bloomeri var. bloomeri John L. Strother 1970-5-23 952 Lassen about 6 mi n Honey Lake 1280 Comment
  UC1609105  Erigeron bloomeri var. bloomeri Vernon H. Oswald and Lowell Ahart 1993-6-28 5581 Lassen Harvey Valley Rd (33N02) 1.2 mi n Hwy 44 (e side of valley, e of Poison Lake); Grays Valley 1731 Comment
  UCR268961  Erigeron bloomeri var. bloomeri Jim Andre, Tasha La Doux, Senna T. Andre, Elias Andre 2013-7-12 31427 Lassen along north side of Hwy 44 at south end of Grays Valley, along National Forest Route 33N02, north of Bogard Buttes, c. 30 mi west of Susanville 1733 Comment
  CAS-BOT-BC294484  Erigeron bloomeri var. bloomeri G. Schoolcraft 1998-6-30 2745 Lassen N. end of Ft. Sage Mtns. 1950 Comment
  SEINET11826499  Erigeron bloomeri var. bloomeri Unknown 1967-1 545 Lassen 10 yds off S side road Comment
  CAS-BOT-BC296847  Erigeron divergens John Thomas Howell; Alice Eastwood 1940-6-16 8340 Lassen Janesville Comment
  CHSC105252  Erigeron divergens Lowell Ahart; John Dittes 2010-7-31 17004 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
  CHSC75455  Erigeron divergens Vernon H. Oswald; Lowell Ahart 1999-6-9 9748 Lassen Northeast of Susanville on County Rd. 216 at Biscar Wildlife Management Area. Below the dam of the reservoir. 1353 Comment
  UCR67028  Erigeron divergens George K. Helmkamp 1990-9-23 G- 7 Lassen north of Ravendale 1677 Comment
  CAS-BOT-BC300373  Erigeron eatonii var. plantagineus Alice Eastwood; John Thomas Howell 1940-6-15 8320 Lassen Said Valley Comment
  CHSC77194  Erigeron eatonii var. plantagineus G. Schoolcraft 1993-6-29 Lassen Ash Valley RNA 16 mi. E. of Adin. 1554 Comment
  JEPS87524  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
  UC1118206  Erigeron eatonii var. plantagineus A. Simontacchi 1940-6-4 801 Lassen 7.0 mi sw Jacks Lake; Lassen National Forest, Halls Flat Quadrangle 1828 Comment
  UC773845  Erigeron eatonii var. plantagineus L. R. Short 1936-5-22 S- 350 Lassen Burgess Spr. Exp. Range Lassen <National> Forest 1859 Comment
  POM32996  Erigeron filifolius Marcus E. Jones 1897-6-30 s.n. Lassen Eagle Lake, 27 miles from Susanville. 1524 Comment
  CAS-BOT-BC295181  Erigeron inornatus John Thomas Howell 1974-7-10 50516 Lassen Janesville 1295 Comment
  CHSC65089  Erigeron inornatus var. calidipetris Vernon H. Oswald; Lowell Ahart 1995-7-24 7146 Lassen Cascade Range. Forest Road 31N25 0.5 mi E of Forest Route 10, near the NW corner of Upper Stephens Mdws., ca. 3 mi NNE of Silver Lake, N of Lake Almanor. Edge of the road. 1905 Comment
  SFV10992  Erigeron lassenianus var. deficiens J. Turner, F. M. Ball 1962-7-13 1193 Lassen Laufman Public Camp, 3 miles off Highway 395 from Milford near Honey Lake. 1494 Comment
  CAS-BOT-BC295471  Erigeron lassenianus var. lassenianus Lassen 1927 G. S. Crew 1927-6-25 34 Lassen Lassen National Forest. Norval Flat 1747 Comment
  CAS-BOT-BC295507  Erigeron linearis Marcus E. Jones 1897-6-28 s.n. Lassen Top of Diamond Mt. Susanville. Perkin's Ranch 2225 Comment
  CHSC117128  Erigeron linearis L. P. Janeway; B. Castro 2015-6-5 11776 Lassen Great Basin, Modoc Plateau. Along Tuledad Road (County Road 506) 13.0 road-km south of the junction at the west end of Tuledad Canyon; 6.8 road-km north of Stage Road (which is in the eastern corner of Madeline Plains); west side of a northeastern branch of Red Rock Creek. 1695 Comment
  CHSC13846  Erigeron peregrinus var. callianthemus A. W. Harilik 1967-7-11 58 Lassen Collected on road 5.19 ca. 5 mi from Eagle Lake Biology Station. 1524 Comment
  CHSC12615  Erigeron philadelphicus Jannae Pitts 1972-6-23 265 Lassen On the road to Eagle Lake Field Station, 2 mi se of the station on the e side of the road. Comment
  CAS-BOT-BC295958  Erigeron philadelphicus G. Schoolcraft 1993-6-1 2273 Lassen Secret Creek area s. of Tule Patch Spring 1463 Comment
  SJSU6631  Erigeron philadelphicus var. philadelphicus H. L. Buckalew 1961-7-9 Lassen spring by Blue Lake, Warner Mountains 1920 Comment
  RSA768024  Erigeron pumilus subsp. intermedius L. Ahart, John Dittes 2010-7-31 16986 Lassen About 3300 feet north of where the road crosses Hunsinger Draw, 1.9 air miles northwest of Moll Reservoir, 2.8 air miles west of Ash Valley, 8.4 air miles southeast of Adin. 1521 Comment
  CHSC71222  Erigeron pumilus var. intermedius Vernon H. Oswald; Lowell Ahart 1998-6-4 9139 Lassen Red Rock Rd at its junction with Hwy. 395 south of Constantia. 1365 Comment
  JEPS94532  Erigeron pumilus var. intermedius Vernon Oswald and Lowell Ahart 1997-6-24 8648 Lassen s of Susanville (at the small pond on the crest of Diamond Mountain, about midway between Aspen Flat and Red Rock Lookout); crest of Diamond Mountain 2249 Comment
  SEINET10537777  Eriogonum Mary Susan Taylor 1974-7-8 Taylor 262 Lassen Ca. 1 mi N of Honey Lake, ca. 1 mi S of Standish, Honey Lake Wildlife Refuge. Comment
  SEINET530701  Eriogonum baileyi var. baileyi Paul Opler 2007-7-7 Lassen N end Turtle Mountain. 1288 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
  UC762657  Eriogonum baileyi var. baileyi R. F. Hoover 1940-10-5 4672 Lassen Pass between Shaffer Mt. and Warren Peak Comment
  NY399607  Eriogonum baileyi var. baileyi E. K. Balls 1952-10-10 18139 Lassen 5.5 miles northeast of Litchfield, Highway 395, between Susanville and Alturas 1280.2 Comment
  CAS-BOT-BC244039  Eriogonum baileyi var. praebens R. F. Hoover 1940-10-5 4673 Lassen Between Shaffer Mt. and Warren Peak Comment
  UC762679  Eriogonum baileyi var. praebens R. F. Hoover 1940-10-5 4673 Lassen pass between Shaffer Mt. and Warren Peak Comment
  CHSC64804  Eriogonum caespitosum Vernon H. Oswald 1995-5-31 6795 Lassen Smoke Creek Ranch Rd. 0.4 mi e of Hwy. 395, between Litchfield and Ravendale. 1383 Comment
  SEINET8513012  Eriogonum caespitosum A. Rosenblum, A. Ortega, O. Schilling, M. Gray 2015-6-24 s.n. Lassen Constantia Allotment, West of Peterson's 1490 Comment
  CAS-BOT-BC241831  Eriogonum caespitosum A. A. Heller 1938-6-23 15216 Lassen On U. S. Highway #395, south of Ravendale Comment
  CAS-BOT-BC241837  Eriogonum caespitosum Rhonda Riggins 1989-4-27 1634 Lassen US 395, 8.4 mi N. LItchfield, 26.6 mi S Ravendale 1310 Comment
  CDA22482  Eriogonum collinum E. E. Fix 1960-6-2 Lassen 0 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
  NY242502  Eriogonum collinum G. Schoolcraft 1983-6-28 1021 Lassen East side of Mud Flat. 31-15-26 1341.1 Comment
  RSA338584  Eriogonum collinum Noel Holmgren, Patricia K. Holmgren 1980-7-3 9485 Lassen Hwy 395, 7.4 km (4.6 mi) south of Ravendale. 1620 Comment
  UC1094378  Eriogonum collinum R. C. Bacigalupi with S. Galen Smith 1957-6-28 6009 Lassen 11.5 mi s Termo 1645 Comment
  CHSC68899  Eriogonum douglasii var. meridionale Vernon Oswald; Lowell Ahart 1997-6-24 8639 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
  CHSC93237  Eriogonum elatum var. villosum John Dittes; Scott Chamberlain 2004-6-28 1020 A Lassen Modoc Plateau; Long Valley; ca. 4.6 air-miles north by northeast of Hwy 70 at Beckwourth Pass, ca. 3.2 air-miles west of Hwy 395, ca. 0.3 air-mile east of Plumas County line; near meadow edge. 1511 Comment
  UCD100069  Eriogonum fasciculatum var. polifolium Collector unknown 1919-5-1 289 Lassen Coyote Hill. Comment
  CAS-BOT-BC259389  Eriogonum luteolum Ernest C. Twisselmann 1961-9-21 6571 Lassen Harvey Valley Road, ca. 14 miles south of Pitville [Pittville] 1219 Comment
  CAS-BOT-BC263045  Eriogonum maculatum Noel H. Holmgren; James L. Reveal 1964-8-22 1724 Lassen 35 miles northeast of Susanville 18 miles south of Ravendale along U.S. 395 Comment
  CAS-BOT-BC263046  Eriogonum maculatum Robert F. Hoover 1940-10-5 4670 Lassen Wendel Comment
  NY281661  Eriogonum maculatum R. F. Hoover 1940-10-5 4670 Lassen Wendel. Comment
  CAS-BOT-BC263048  Eriogonum maculatum Peter H. Raven; Otto T. Solbrig 1958-6-17 13271 Lassen Along United States Highway 395, 19.0 miles south of Ravendale Comment
  POM203841  Eriogonum marifolium J. T. Howell 1934-7-9 12521 Lassen Pine Creek Flat Comment
  POM105455  Eriogonum microtheca var. ambiguum Marcus E. Jones 1897-6-30 s.n. Lassen Eagle Lake, 27 miles from Susanville 1524 Comment
  CAS-BOT-BC268690  Eriogonum microthecum var. laxiflorum Clare B. Hardham 1971-8-22 18365 Lassen Diamond Mountain 2346 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
  UC762680  Eriogonum nidularium R. F. Hoover 1940-9-29 4643 Lassen pass between Mt. Shaffer and Warren Peak Comment
  CAS-BOT-BC266366  Eriogonum nudum var. deductum John Thomas Howell; Gordon H. True 1973-7-31 50020 Lassen On road from Janesville to Thompson Peak, Diamond Range, Sierra Nevada 1737 Comment
  CAS-BOT-BC266368  Eriogonum nudum var. deductum John Thomas Howell; Gordon H. True; Margaret Williams 1973-6-28 49514 Lassen West of Janesville, Elysian Valley, Sierra Nevada 1325 Comment
  CAS-BOT-BC266365  Eriogonum nudum var. deductum H. D. Ripley; R. C. Barneby 1943-6-13 5700 Lassen South of Milford 1569 Comment
  CHSC68900  Eriogonum nudum var. nudum Vernon Oswald; Lowell Ahart 1997-6-24 8595 Lassen South of Susanville on the north side of Diamond Mtn. on Forest Rd. 29N43, 1.2 miles east of Gold Run Rd. (29N10). Along the edge of the road. 1685 Comment
  SD13333  Eriogonum nudum var. nudum R. V. Chamberlain 1935-9-8 6584 Lassen Guernsey Creek Comment
  CAS-BOT-BC269826  Eriogonum nudum var. pubiflorum John Thomas Howell 1934-7-8 12498 Lassen Spalding's, Eagle Lake Comment
  CHSC67061  Eriogonum nudum var. pubiflorum Willis Ball 1969-6-27 50 Lassen Found about 50 yds. S. of Gallatin Beach. Growing beside Gallatin Beach Parking Lot. 1561 Comment
  JEPS94558  Eriogonum nudum var. pubiflorum Vernon Oswald and Lowell Ahart 1997-6-24 8595 Lassen s of Susanville (on the n side of Diamond Mountain on Forest Road 29N43, 1.2 mi e of Gold Run Road (29N10)); Diamond Mountain, Forest Road 29N43 1685 Comment
  UC1542950  Eriogonum nudum var. pubiflorum G. Schoolcraft 1987-7-8 1758 Lassen Hayden Hill, old town site 1737 Comment
  CAS-BOT-BC269925  Eriogonum nudum var. pubiflorum Barrett Anderson 1986-7-9 3129 Lassen Road to Day, about 2.4 km N of Rte 299 1065 Comment
  NY282297  Eriogonum nummulare A. Tiehm 1978-10-14 4767 Lassen 7.2 road miles NE of Doyle on road 327 to Flanigan. About 1.7 miles W of the Nevada Line. 1524.0 Comment
  SEINET5330981  Eriogonum nummulare A. Tiehm 1978-1 4767 Lassen 7.2 road miles NE of Doyle on road 327 to Flanigan. About 1.7 miles W of the Nevada line 1524 Comment
  JEPS93951  Eriogonum ovalifolium var. purpureum Vernon H. Oswald 1998-9-14 9627 Lassen Windy Hollow on the w side of Highway 44 ca. 1 mi nw of its intersection with A21 to Westwood; Windy Hollow, Highway 44 1737 Comment
  UC1735877  Eriogonum prociduum Dean W. Taylor 1992-5-7 12543 Lassen Ash Valley, ca. 1.5 miles SW of Ash Valley cemetary Comment
  CHSC12948  Eriogonum prociduum var. prociduum K. R. Stern; D. B. Joley, J. G. Geschke 1974-6-22 5813 Lassen Ca. 16.5 mi w of Madeline, on Madeline-Adin Road. 1548 Comment
  CHSC68901  Eriogonum spergulinum var. reddingianum Vernon Oswald; Lowell Ahart 1997-6-24 8596 Lassen South of Susanville on the north side of Diamond Mtn. on Forest Rd. 29N43, 1.2 miles east of Gold Run Rd. (29N10). Along the edge of the road. 1685 Comment
  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
  RSA713122  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 Rd. 28N01 and 0.6 km east of junction of Janesville Grade Rd (Rd 208 and 28N02) and Road 28N01. 1859 Comment
  NY283102  Eriogonum sphaerocephalum G. Schoolcraft 1982-7-6 765 Lassen Fort Sage Mountains 1950.7 Comment
  POM105341  Eriogonum sphaerocephalum Marcus E. Jones 1897-6-21 s.n. Lassen Chat. 1616 Comment
  RSA780044  Eriogonum sphaerocephalum Elizabeth A. Kempton 2007-8-15 512 Lassen Near Basehill landfill 1282 Comment
  CHSC60914  Eriogonum sphaerocephalum var. halimioides Vernon H. Oswald; Lowell Ahart 1993-7-8 5674 Lassen Halls Flat rd. (33N18), 1.4 mi SSW of Pittville Rd. (Lassen 111, 36N01), ca. 5.4 mi (air) NW of Poison Lake. On an open sagebrush flat on the E side of the road. 1694 Comment
  CHSC64846  Eriogonum sphaerocephalum var. halimioides Vernon H. Oswald 1995-6-26 6927 Lassen Ash Valley Rd. (Lassen 527), 8.5 mi w of Madeline, ca. 1 mi e of the reservoir at Fleming Sheep Camp. 1670 Comment
  NY283113  Eriogonum sphaerocephalum var. halimioides H. D. D. Ripley 1943-6-13 5710 Lassen South of Johnstonville 1325.9 Comment
  UC1226260  Eriogonum sphaerocephalum var. halimioides Arthur Cronquist, Arthur H. Holmgren 1959-6-18 8482 Lassen 5 mi s Adin Comment
  JEPS56418  Eriogonum sphaerocephalum var. sphaerocephalum Hilda W. Grinnell 1934-5-31 Lassen near Susanville (mouth of Piute Creek Canyon); Piute Creek Canyon Comment
  CHSC71247  Eriogonum strictum var. anserinum Vernon H. Oswald; Lowell Ahart 1998-6-4 9147 Lassen Spur road on north side of Red Rock Rd. 0.6 mi east of Hwy. 395, south of Constantia. 1389 Comment
  NY283169  Eriogonum strictum var. anserinum A. J. Cronquist 1959-6-17 8473 Lassen 50 miles southeast of Susanville. 1371.6 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
  UCR248974  Eriogonum umbellatum Elizabeth A. Kempton, Tim Tibault 2006-7-29 418 Lassen town of Chester, vacant lot at intersection of Willow Way and Main Street 1388 Comment
  RSA0025577  Eriogonum umbellatum John F. Emmel 1996-7-14 1427 Lassen At Hwy 395 crossing of Secret Creek, on slope 0.1-0.2 air mi SSE of the crossing, 2.7 road mi north of Karlo Road junction. Comment
  CHSC13632  Eriogonum umbellatum var. modocense M. S. Taylor 1974-7-13 306 Lassen Ca. 150 ft w of Mahogany Lake, ca. 5 mi s of Eagle Lake Field Station, ca. 13 mi nw of Susanville. 1524 Comment
  CHSC30618  Eriogonum umbellatum var. modocense Eric Miller 1975-7-8 7 Lassen N. E. slope of Gallatin Peak. 2011 Comment
  CHSC6227  Eriogonum umbellatum var. modocense A. Santos 1946-6-10 Lassen Pelican Point, Eagle Lake. 1556 Comment
  JEPS88218  Eriogonum umbellatum var. modocense Vernon H. Oswald and Lowell Ahart 1996-6-17 7799 Lassen Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville 1420 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-BC265101  Eriogonum umbellatum var. nevadense Frank W. Peirson 1926-6-24 6848 Lassen A few miles southward from the Madeline Plain Comment
  CHSC93680  Eriogonum umbellatum var. nevadense Lowell Ahart; John Dittes 2005-6-2 11980 Lassen North side of a poor dirt road, Long Valley, about 4 1/2 miles (air) northeast of the intersection of Scott Road and Highway 70, 5.7 miles (air) northwest of Hallelujah Junction. 1410 Comment
  NY399398  Eriogonum umbellatum var. nevadense H. D. D. Ripley 1943-6-13 5713 Lassen South of Johnstonville 1325.9 Comment
  UC1032336  Eriogonum umbellatum var. nevadense A. Simontacchi 1940-6-15 877 Lassen 1.6 mi ssw Blacks Mtn.; Lassen National Forest, Halls Flat Quadrangle Comment
  UC584410  Eriogonum umbellatum var. nevadense G. L. Stebbins Jr. and J. A. Jenkins 1937-7-10 2310 Lassen w Milford (crest of range head of Stony Ridge); Stony Ridge 1930 Comment
  CAS-BOT-BC262362  Eriogonum vimineum John Thomas Howell 1934-6-10 11850 Lassen 4 miles south of Omira Comment
  CHSC30597  Eriogonum vimineum Marc Held 1972-6-22 5 Lassen Approx. 500 yrds. north-east of E. L. B. S. Comment
  CHSC56867  Eriogonum vimineum Mary Meyer 1980-7-3 Lassen North of Jeep trail going up drainage above camping pullover. 1584 Comment
  POM195124  Eriogonum vimineum D. D. Keck 1930-7-23 951 Lassen Susanville. 1280 Comment
  RSA768781  Eriogonum vimineum L. Ahart, John Dittes 2010-7-31 17018 Lassen About 50 yards east of the large culvert, where the road crosses Hunsinger Draw, 1.9 air miles northwest of Moll Reservoir, 2.8 air miles west of Ash Valley, 8.4 air miles southeast of Adin 1516 Comment
  UC1537299  Eriogonum vimineum Gordon H. True Jr. 1937-7-10 785 Lassen Bull Flat, Game Refuge 1Q 1493 Comment
  UC1601758  Eriogonum vimineum Milo S. Baker Lassen Dixey Valley Comment
  UC767818  Eriogonum vimineum R. F. Hoover 1940-10-5 4672 a Lassen pass between Shaffer Mt. and Warren Peak Comment
  CAS-BOT-BC262355  Eriogonum vimineum David D. Keck 1930-7-23 951 Lassen Susanville 1280 Comment
  CAS-BOT-BC262356  Eriogonum vimineum Margaret Williams; Louella Bass 1972-10-22 EV 1 Lassen Elysian Valley, northwest of Janesville 1325 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
  CDA38977  Eriophorum gracile Gordon Leppig and T. LaBanca 1997-6-29 531 Lassen Blue Lake Ranch; Modoc National Forest. Comment
  JEPS96132  Eriophorum gracile Vernon H. Oswald and Lowell Ahart 1996-6-24 7888 Lassen 2.5 mi. s. Eagle Lake (ca. 0.5 mi. e. of Eagle Lake Rd. (A1), e. side Papoose Meadows, Modoc Plateau); Modoc Plateau, Papoose Meadows 1633 Comment
  RSA647564  Eriophyllum lanatum Marion P. Harthill 1971-6-20 205 Lassen Susanville Comment
  JEPS126470  Eriophyllum lanatum var. achilleoides Lillie Pennington, Jillian Pastick, Rachael Payer, Andrea Stuemsky 2015-7-14 CA 350 -046 Lassen Drive North on Horse Lake Road. Comment
  RSA712892  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
  UC1136992  Eriophyllum lanatum var. achilleoides George A. Fischer and Irwin H. Johnson 1933-7-14 F 250 Lassen 3.5 mi ne Grass Valley 1767 Comment
  UC1924222  Eriophyllum lanatum var. achilleoides Debra Valov 2004-6-8 2004252 Lassen Bieber; off County A2 c. 8 km east of Hwy 299 1270 Comment
  CAS-BOT-BC301532  Eriophyllum lanatum var. integrifolium 1927-7-1 50 Lassen Lassen National Forest. Bogard Ranger Station 1712 Comment
  SEINET3132728  Eriophyllum lanatum var. integrifolium J. L. Strother 1970-5-23 956 Lassen ca. 6 mi. N of Honey Lk. 1280 Comment
  UC1136993  Eriophyllum lanatum var. integrifolium George A. Fischer and Irwin H. Johnson 1935-7-21 F 200 Lassen Grass Valley Lassen National Forest 1697 Comment
  UC1137628  Eriophyllum lanatum var. integrifolium A. Simontacchi 1940-6-5 816 Lassen 8.3 mi wnw of Harvey Valley Ranger Station; Lassen National Forest, Halls Flat Quadrangle Comment
  UC1536862  Eriophyllum lanatum var. integrifolium G. H. True Jr. 1936-6-25 537 Lassen e Harvey Ranger Station; Harvey Valley 1767 Comment
  UC507013  Eriophyllum lanatum var. integrifolium George A. Fischer and Irwin H. Johnson 1933-7-12 F- 200 Lassen Grass Valley Lassen National Forest, Grass Valley 1697 Comment
  CHSC58831  Eryngium alismifolium Vernon H. Oswald; Lowell Ahart 1992-7-16 5104 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
  JEPS19759  Eryngium alismifolium Rimo Bacigalupi with S. Galen Smith 1957-6-28 6007 Lassen 3.7 mi. s. Ravendale (Madeline Valley); Madeline Valley 1645 Comment
  UCD107938  Eryngium pinnatisectum Tim Kuhn 2006-7-20 53 Lassen Eagle Lake Ranger District. Comment
  SBBG15427  Erythranthe breweri H. and M. Dearing 1939-7-1 2244 Lassen 17 mi W of Susanville Comment
  CHSC12460  Erythranthe guttata Robert W. Severin 1969-6-26 32 Lassen Murrer's Meadow, west side in moist grassy soil next to irrigation ditch; 2 mi ese E.L.B.S. Comment
  CHSC68876  Erythranthe lewisii Vernon Oswald; Lowell Ahart 1997-6-24 8616 Lassen South of Susanville on the north side of Diamond Mtn. at a springy slope with streamlets along Forest Rd. 29N42, 5.4 miles east of Gold Run Rd. (29N10), 0.7 mi east of Lassen NF boundary. 1889 Comment
  CAS-BOT-BC153611  Erythranthe moniliformis Clare B. Hardham 1971-8-22 18384 Lassen Diamond Mountain 2133 Comment
  CHSC37357  Erythranthe primuloides NE Heiken 1978-7-5 73 Lassen S of Eagle L., E shore of Mahogany L. 2060 Comment
  CHSC4895  Erythranthe primuloides Bill Wilson 1967-6-28 61 Lassen Collected at Dean's Meadow, 6 mi. S of Eagle Lake Biological Station. 4 mi. N of Susanville. 1950 Comment
  CHSC4974  Erythranthe primuloides D. L. Stites 1967-7-14 168 Lassen 3 mi e of turnoff to Silver Lake on highway 44. 1524 Comment
  CHSC77236  Erythranthe primuloides G. Schoolcraft 1993-7-20 2329 Lassen About 1 mile s. of Boot Lake. 1950 Comment
  CHSC96726  Erythranthe primuloides Gordon Leppig; J. Cromwell 1997-7-27 604 Lassen Modoc National Forest, Blue Lake Ranch. Peatland in large meadow complex. 1970 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
  POM252826A  Erythranthe pulsiferae A. A. Heller 1938-6-22 15187 Lassen 1 mile south of Westwood. 1524 Comment
  UCD139645  Erythronium multiscapideum W. W. Robbins 1926-4-17 541 Lassen Grass Valley. Comment
  SEINET10528918  Erythronium purpurascens Marcus E. Jones 1897-7-7 Jones s.n. 1897 Lassen Lassen's Peak 6000 feet. 1830 Comment
  NY500075  Eschscholzia W. W. Eggleston 1911-5-29 6752 Lassen Vicinity of Doyle Station 1290 Comment
  SFV18615  Eschscholzia caespitosa T. W. Nelson, J. P. Nelson 1990-7-14 8777 Lassen Along State Route CA-395 at Janesville Road. Lassen County Site #3. 1250 Comment
  JEPS51782  Eschscholzia californica W. L. Jepson 1918-8-2 7774 Lassen Beckwith Pass 1463 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
  CHSC54180  Euclidium syriacum Vernon H. Oswald 1991-5-28 4616 Lassen Wayman Barn at the west end of Hunt Rd, Ash Creek Wildlife Area, ca. 5 miles northeast of Bieber. On the east side of the barn. 1264 Comment
  CAS-BOT-BC312105  Eurybia integrifolia Alice Eastwood 1912-8-22 1914 Lassen Battle Creek Meadows, Lassen Butte Region Comment
  CAS-BOT-BC312106  Eurybia integrifolia Alice Eastwood 1912-8-22 1883 Lassen Morgans Springs, Lassen Butte Region 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
  CHSC27575  Festuca idahoensis Robert Schlising 1978-7-11 3316 Lassen S of Eagle Lake at Papoose Creek. 1584 Comment
  HSC29817  Festuca idahoensis D. H. Norris, T. Nelson, S. Dowty 1971-6-22 19186 Lassen Harvey Valley near Cone Springs Comment
  POM203052  Festuca idahoensis J. T. Howell 1934-7-6 12448 Lassen Harvey Valley Comment
  UC1024704  Festuca idahoensis Leo Whitney 1933-7-10 2140 Lassen ca 25 mi w Eagle Lake (upper end); Lassen National Forest, Halls Flat 1737 Comment
  UCD65976  Festuca idahoensis L. Whitney 1933-7-1 Lassen Logan Mt. Comment
  CAS-BOT-BC278433  Festuca idahoensis Clarence R. Quick 1962-6-17 62 -30 Lassen Western Pacific RR., S. of Halls Flat, Susanville-Pittville road near Blacks Mt. Experimental Station 1706 Comment
  UCD66348  Festuca rubra L. Whitney 1933-8-3 Lassen Slate Creek. 1920 Comment
  UCD66360  Festuca rubra R. Tofsrud 1947-7-1 220 Lassen Cedar Cr. East of Madeline. Comment
  JEPS95107  Floerkea proserpinacoides Vernon Oswald and Lowell Ahart 1997-6-24 8650 Lassen s of Susanville just s of small ond on crest of Diamond Mountain, about midway between Aspen Flat and Red Rock Lookout Red Rock Lookout; crest of Diamond Mountain 2249 Comment
  HSC25728  Fragaria vesca D. H. Norris, Thomas W. Nelson, S. Dowty 1971-6-22 19249 Lassen 3 mi. N of Westwood Comment
  SJSU6086  Frasera albicaulis var. nitida J. W. Tilden 1960-6-27 1509 Lassen outskirts of Westwood at foot of Moonlight Rd 1524 Comment
  UC1523707  Fraxinus latifolia Gregg Riegel 1981-6-17 1128 Lassen in and along Beaver Creek Beaver Creek 1280 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
  RSA59761  Fritillaria pudica E. K. Balls 1950-5-18 14768 Lassen Above Ash Creek Public Camp., off rd. from Adin to Madeline. 1616 Comment
  RSA367755  Fritillaria recurva J. P. Smith, J. O. Sawyer 1972-5-6 5235 -a Lassen Lassen National Forest; Boundary Campground on State Route 89 south of Burney 1067 Comment
  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
  UC773941  Galium aparine L. R. Short and Wm. Gansberg 1936-6-2 S- 367 Lassen Burgess Spring Experimental Range Lassen National Forest 1850 Comment
  RSA647556  Galium aparine Marion P. Harthill 1972-6-16 s.n. Lassen Doyle. Comment
  UC773944  Galium bifolium L. R. Short and W. Gansberg 1926-6-2 S- 368 Lassen Lassen National Forest 1850 Comment
  JEPS29538  Galium trifidum var. pusillum John Thomas Howell 1959-9-23 34886 Lassen n end of lake Lassen Volcanic National Park, Juniper Lake 2057 Comment
  CHSC27713  Gayophytum heterozygum Robert A. Schlising 1978-7-21 3318 Lassen E side of Eagle L., near Eagle Lake Field Station. 1578 Comment
  RSA768780  Gayophytum heterozygum L. Ahart, John Dittes 2010-7-31 17025 Lassen About 100 yards northeast of where the road crosses Hunsinger Draw, 1.9 air miles northwest of Moll Reservoir, 2.8 air miles west of Ash Valley, 8.4 air miles southeast of Adin. 1521 Comment
  CHSC27712  Gayophytum humile Robert A. Schlising 1978-7-1 3301 Lassen S of Eagle Lake; meadow bordering Mahogany Lake. 2060 Comment
  UCSB64021  Gayophytum humile Ahart, Lowell; Howell, John 1974-7-9 Lassen Near S edge of Eagle Lake 1584 Comment
  CHSC66725  Gentiana calycosa Vernon H. Oswald; Lowell Ahart 1996-8-1 8119 Lassen Forest Rd. 28N56 (D-Line) ca. 2 mi N of Dyer Mtn. Lookout, SSW of Westwood 1737 Comment
  JEPS31405  Gentiana newberryi G. S. Crew and C. S. Robinson 1927-7-15 68 Lassen Bogard Ranger Station, sw Lassen Co. Lassen Forest 1737 Comment
  UC803944  Gentiana newberryi G. L. Stebbins Jr., P. Dansereau, C. McMillan, and K. Narayan 1949-8-6 3998 Lassen nw of Susanville; Hog Flat 1676 Comment
  JEPS28703  Gentianella amarella subsp. acuta George W. Gillett 1957-7-28 929 Lassen 1 mi above Butte Lake (on Widow Lake trail); Lassen Volcanic National Park 1905 Comment
  UCD103467  Geranium oreganum L. R. Short; Wm. Gansberg 1936-6-12 S- 433 Lassen Lassen Forest, MDM, Burgess Spr. Exp. Range. 1807 Comment
  CHSC30615  Geranium viscosissimum var. nervosum L. Maslin 1975-7-1 2 Lassen Corn lily mdw. over the ridge s of Deans mdw. 1920 Comment
  NY1101445  Geranium viscosissimum var. nervosum B. M. Bartholomew 1988-6-25 4372 Lassen Long Valley, southern end of the Warner Mountains. 2080 Comment
  JEPS44857  Geum aleppicum W. L. Jepson 1918-8-4 7810 Lassen Horse Lake 1554 Comment
  RSA122288  Geum canescens L. R. Short, J. Warren 1936-6-23 s.n. Lassen Burgess Spring Exp Range. 1765 Comment
  HSC95165  Geum macrophyllum Gordon Leppig 1998-7-12 951 Lassen Modoc National Forest, Blue Lake Ranch 1970 Comment
  UC72970  Geum macrophyllum Milo S. Baker 1894-7-12 Lassen Pine Creek Comment
  CHSC68762  Geum triflorum Vernon H. Oswald; Lowell Ahart 1997-5-27 8504 Lassen North of Susanville on Forest Route 38N04 (between Hwy. 139 near Willow Creek Guard Station and Coyote Flat), 0.1 mi east of Hwy. 139. On the bank of a creek paralleling the road. 1546 Comment
  JEPS107828  Gilia inconspicua Lowell Ahart, John Dittes 2005-6-2 11990 Lassen Along a small wash, west side of a poor dirt road, Long Valley, about 4 1/2 miles (air) northeast of the intersection of Scott Road and Highway 70, 6.0 miles (air) northwest of Hallelujah Junction 1427 Comment
  RSA0068910  Gilia minima Marcus E. Jones 1897-6-30 s.n. Lassen Eagle Lake, 27 miles from Susanville. 1524 Comment
  CHSC11771  Gilia modocensis Wayne O. Baum 1971-6-28 71 -4 Lassen S. slope of Gallatin Peak. 2042 Comment
  CAS-BOT-BC523868  Gilia modocensis Alice Eastwood; John Thomas Howell 1940-6-16 8355 Lassen Constantia Comment
  RSA95714  Gilia modocensis Verne Grant, Alva Grant 1955-6-8 9666 A Lassen c. 2 miles north of Doyle. 1311 Comment
Read comments
May 2 2012
  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
  CAS-BOT-BC283865  Glyceria borealis George W. Gillett 1957-7-26 922 Lassen Lassen Volcanic National Park. Near shore of Butte Lake 1844 Comment
  CHSC66283  Glyceria borealis Vernon H. Oswald; Lowell Ahart 1996-6-24 7872 Lassen Modoc Plateau. Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake. In Papoose Creek where it leaves the N end of the meadow. 1633 Comment
  JEPS123845  Glyceria borealis Lowell Ahart, John Dittes 2015-7-14 20326 Lassen About 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. Comment
  JEPS28295  Glyceria borealis George W. Gillett 1957-7-26 922 Lassen Lassen Volcanic Nat'l Park, Butte Lake 1844 Comment
  CAS-BOT-BC280597  Glyceria elata John Thomas Howell; Gordon H. True; Margaret Williams 1973-6-28 49473 Lassen Elysian Valley, west of Janesville 1325 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
  POM38258  Gnaphalium palustre Marcus E. Jones 1897-6-18 s.n. Lassen Chat. [also Chats, a former settlement] 1524 Comment
  RSA0011563  Gnaphalium palustre R. F. Thorne, Larry E. DeBuhr 1975-8-22 46989 Lassen Along Highway 395 ca. 5 miles north of Madeline and ca. 5.5 miles south of Modoc county line. 1616 Comment
  JEPS4213  Gratiola neglecta Milo S. Baker 1899-8-24 Lassen Big Valley; Carmichael's Mill Comment
  UC444903  Gratiola neglecta Milo S. Baker 1899-8-24 Lassen Carmichael's Mill Big Valley (Big Valley) Comment
  CHSC31131  Grayia spinosa J. S. White 1980-4-14 118 Lassen On 2% s slope, 1 mi ne of Wendel. 1295 Comment
  CHSC64781  Grayia spinosa Vernon H. Oswald 1995-5-24 6764 Lassen Modoc Plateau. Wendel Rd. (Lassen 320) 3.3 mi e of Amedee Rd. at Wendel. At the base of Amedee Mtns. 1249 Comment
  UC87888  Grindelia hirsutula T. S. Brandegee 1892-6-30 Lassen Susanville Comment
  UCD132463  Grindelia nana Dan Marcum 1978-7-3 s.n. Lassen exact location unknown. Comment
  CDA3429  Gypsophila paniculata T. C. Fuller 1971-10-6 19933 Lassen Northeast side of Highway 395 to Susanville, 1 mile north of Janesville. 0 Comment
  SEINET3818101  Habenaria leucostachys A. A. Heller 1938-1 Lassen Comment
  OBI76932  Hackelia californica Anthony Baniaga 2011-7-9 440 Lassen Lassen Natl forest. Windy Hollow. Pine Crk Valley quad. T31N R8E sec 15 SE of SW 1720 Comment
  UC1583977  Hackelia cusickii G. Schoolcraft 1990-7-2 2099 Lassen sw slopes of Cold Spring Mountain 1950 Comment
  UC1583983  Hackelia cusickii G. Schoolcraft 1990-6-26 2097 Lassen sw of Ash Valley 1767 Comment
  CHSC7712  Halogeton glomeratus Jesse Langdon 1969-5-23 8 Lassen Stacey - 35.5 mi. S.E. of Susanville on Las. Co. Rd. 320. 1249 Comment
  CHSC12456  Hastingsia alba Robert W. Severin 1969-6-26 34 Lassen 7.2 mi along road from E. L. B. S. to Galatin Beach; 3 mi. s of E. L. B. S. 1645 Comment
  CAS-BOT-BC314764  Helianthella californica var. nevadensis A. M. Vollmer; L. Beane 1953-7-1 37 Lassen Along Halls Flat Road, beginning 6 miles west of Susanville to McArthur 1554 Comment
  RSA518564  Helianthus annuus George K. Helmkamp 1990-9-23 A- 11 Lassen 3 mi E of Susanville, along state road 36. 1345 Comment
  CHSC7636  Helianthus cusickii Beverley J. Wise 1969-5-15 22 Lassen 28.9 mi. East of Susanville on Hwy 395. 1554 Comment
  JEPS25527  Helianthus cusickii Rimo Bacigalupi with Lincoln Constance 1959-6-16 7141 Lassen beside Hwy 395 one-fourth mi s of junction road to Smoke Creek 1341 Comment
  SJSU14474  Helianthus cusickii W. D. Pitts 1990-5-29 299 Lassen by Hwy 395 between Madeline & Ravendale 1432 Comment
  RSA0012972  Helianthus nuttallii subsp. nuttallii H. L. Mason 1947-8-11 13492 Lassen Hwy 81, west margin of Lower Lake, north boundary of Lassen County with Modoc County Comment
  UC1191654  Heliotropium curassavicum Verne Grant and Irving Schneider 1947-9-5 8373 Lassen n.w. shore Eagle Lake (by Sam Webb's place (Spaulding)) Comment
  HSC68922  Heliotropium curassavicum var. oculatum Gary Schoolcraft 1980-7-10 303 Lassen E shore of Eagle Lake 1555 Comment
  UC1776717  Hemizonella minima G. Schoolcraft 1987-5-19 1704 Lassen Ash Valley RNA 16 mi. E. of Adin 1554 Comment
  CDA7823  Hemizonia lobbii T. C. Fuller 1964-10-7 12691 Lassen Hillside Cemetery, 1 mile southwest of Nubieber. 0 Comment
  UC1037238  Hesperochiron californicus Leo Whitney 1935-6-20 3253 Lassen Lassen Nat'l Forest, Fruit Grower's Supply Company, Camp 10 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
  UCD55304  Hesperochiron californicus Ellen Dean; Gary Schoolcraft 2006-5-16 3133 Lassen East of town of Susanville, along County Road A27 (Center Road). Private land north of California Correctional Facility owned by Virginia Johnston, to be purchased by state for expansion of alfalfa fields. 1251 Comment
  HSC63725  Hesperochiron californicus Teresa Prendusi 1980-4-29 Lassen Five Springs Mtn. 1402 Comment
  SEINET5498645  Hesperochiron californicus D. E. Brix 1962-5-2 s.n. Lassen Spring 2 miles from Junction of Red Rock Rd. and Hwy 395 1433 Comment
  UC1211991  Hesperolinon micranthum Lauramay T. Dempster 1961-6-17 1670 Lassen creek about 4 mi sw junction with Richmond Road (s of Susanville); Gold Run Creek Comment
  UC1523712  Hesperolinon micranthum Gary Schoolcraft 1981-6-25 478 Lassen East Fork of Wellard Creek 1584 Comment
  UC1601274  Hesperolinon micranthum Leo Whitney 1934-9-5 1889 Lassen between Susanville and Westwood; Lassen National Forest, Fredonyer Pass 1706 Comment
  HSC68915  Hesperolinon micranthum Gary Schoolcraft 1980-7-10 302 Lassen Along Hwy. 139 just N of turn off to Eagle Lake campground. 1585 Comment
  UC60155  Hesperostipa comata J. Burtt Davy Jun 17 1897-Jun 24 1897 Lassen Amedee Honey Lake Valley Comment
  UCD85293  Hesperostipa comata Beecher Crampton 1954-7-6 2068 Lassen an artemisia flat, along US Hwy. 395, 1 mile east of Johnstonville. Comment
  UC1949318  Heterotheca villosa var. minor Barbara Ertter 1987-7-24 7302 Lassen ca 3/4 mi ENE of Bechwourth Pass at end of old crumbling paved road Comment
  JEPS28669  Hieracium nudicaule George W. Gillett 1957-7-24 894 Lassen between Cameron Meadow and Snag Lake; Lassen Volcanic National Park 1950 Comment
  HSC93305  Hieracium nudicaule Vernon H. Oswald, L. Ahart 1996-8-1 8129 Lassen F.S. Rd. 28N56 (D-Line) ca. 0.6 mi. NNW of Dyer Mtn. Lookout, SSW of Westwood 2012 Comment
  CDA7975  Hieracium scouleri T. C. Fuller 1963-7-15 12904 Lassen Prescott Canyon, 2.5 miles north of Hayden Hill, ca. 15.5 miles south of Adin. 0 Comment
  CHSC66245  Hippuris vulgaris Vernon H. Oswald; Lowell Ahart 1996-6-24 7885 Lassen Modoc Plateau. Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake. Localized colony in shallow water in marshy meadow on the E side of Papoose Creek N of the springs. 1633 Comment
  HSC13458  Hippuris vulgaris Fred J. Kindel 1955-6-27 Lassen Mt. Meadows Reservoir. Comment
  JEPS124842 Image available Hippuris vulgaris Laurel Loeblich 1964-7-1 69 Lassen Collected in stagnant water at side of highway 139, 17.9 miles north of Susanville. Comment
  RSA755003  Holosteum umbellatum subsp. umbellatum L. Ahart, John Dittes 2008-6-20 14922 Lassen About 10-100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 air miles northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 air miles northeast of Bieber. 1264 Comment
  OBI77055  Hordeum brachyantherum Anthony Baniaga 2011-8-4 487 Lassen Lassen NF. About 1/2 mi WNW of Griffith Hill along 30n21. Swain Mtn quad. T30N R8E sec 8 NE of NW 1907 Comment
  CAS-BOT-BC280893  Hordeum brachyantherum subsp. brachyantherum George W. Gillett 1957-7-29 951 Lassen Lassen Volcanic National Park. Trail between Butte Lake and Snag Lake 1859 Comment
  UC1136934  Hordeum brachyantherum subsp. californicum George A. Fischer and Irwin H. Johnson 1933-7-12 F 232 Lassen Patterson Flat Lassen National Forest, Patterson Flat 1737 Comment
  CHSC65367  Hordeum jubatum Vernon H. Oswald; Lowell Ahart 1995-8-14 7189 Lassen Modoc Plateau. Horse Lake Rd. (Lassen 536) at the railroad crossing 1 mi W of Hwy. 395, N of Susanville. Roadside pond. 1645 Comment
  RSA123433  Hordeum jubatum H. S. Yates 1936-8-11 6075 Lassen Baxter Creek 1280 Comment
  UCD86237  Hordeum murinum subsp. glaucum John Thomas Howell 1973-7-10 49801 Lassen Susanville. In city park. 1295 Comment
  UCR244037  Hordeum murinum subsp. glaucum Jim Andre 1993-6-5 19707 Lassen Sierra Nevada/Great Basin, Honey Lake Valley, c. 3 mi. SE of Susanville, just south of airport 1256 Comment
  JEPS44570  Horkelia fusca subsp. tenella Brown & Wieslander 1922-7-23 30 Lassen Martin Sprs., Eagle Lake Comment
  SEINET10483367  Horkelia fusca subsp. tenella Mary Merello 1993-6-28 Merello 752 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
  UC1483792  Horkelia fusca subsp. tenella Teresa Prendusi 1980-7-1 Lassen Littel Antelope Valley, Bureau of Land Management 1676 Comment
  CAS-BOT-BC143982  Horkelia fusca var. tenella John Thomas Howell 1934-7-6 12433 Lassen Harvey Valley Comment
  UC860563  Horkelia tridentata subsp. tridentata C. L. Hitchcock 1940-5-26 6597 Lassen ca 12 mi n Fall River (on Fall River) Comment
  CAS-BOT-BC537888  Horkelia tridentata var. flavescens A. M. Vollmer; L. Beane 1953-7-1 59 Lassen Along Halls Flat road, beginning 6 miles west of Susanville to McArthur 1554 Comment
  JEPS19808  Hornungia procumbens Rimo Bacigalupi with S. Galen Smith 1957-6-28 6010 Lassen n of Karlo (along U.S. Hwy 395, near headwaters of Secret Creek, n of Secret Valley and w of Rye Patch Canyon) 1615 Comment
  CAS-BOT-BC213001  Hosackia crassifolia H. D. Ripley; R. C. Barneby 1943-6-14 5438 Lassen Volcanic hillskide, in open pine woods, Susanville 1402 Comment
  UC729644  Ipomopsis aggregata Carl B. Wolf 1929-9-1 3785 Lassen betw Grassy and Snag Lakes Mt. Lassen National Park Comment
  RSA748951  Ipomopsis congesta J. R. Shevock, Barbara Ertter 1986-7-20 11741 Lassen Ash Valley BLM Research Natural Area. Along Ash Valley Road about 16 miles W of Madeline and U.S. Hwy 395. 1550 Comment
  UC23470  Ipomopsis congesta M. S. Baker and Frank Nutting 1894-7-12 Lassen Pine Creek Comment
  CHSC64801  Ipomopsis polycladon Vernon H. Oswald 1995-5-24 6769 Lassen Modoc Plateau. Wendel Rd. (Lassen 320) 5.0 mi e of Amedee Rd. at Wendel. On flat bordering the road. 1219 Comment
  CHSC4265  Iris missouriensis K. R. Stern 1967-6-24 2425 Lassen Murrer Meadow Road, ca. 3 mi. E of Eagle Lake Biological Station. 1554 Comment
  JEPS121786  Iris missouriensis B. Castro and 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 Mountains; large meadows along Skedaddle Creek, just upstream from Skedaddle Ranch. Comment
  JEPS17345  Iris missouriensis W. L. Jepson 1918-8-4 7811 Lassen Horse Lake 1554 Comment
  RSA181824  Iris missouriensis H. N. Metcalf, Jack C. Wilson 1965-7-1 65 -23 Lassen Southeast of Susanville, on back road to Janesville Comment
  CHSC59161  Isoetes howellii Vernon H. Oswald; Lowell Ahart 1992-9-15 5215 Lassen Island Lake located N of Bonte Pk. And ca. 1.5 mi W of Juniper Lake campgrounds. 2164 Comment
  UC1609389  Isoetes howellii Vernon H. Oswald and Lowell Ahart 1993-6-28 5622 Lassen e Poison Lake (between Champs Flat and Harvey Valley, ne end of Little Harvey Valley, n of Hwy 44 along Rd 33N47, along small branch of Pine Creek); Little Harvey Valley 1737 Comment
  UC2062873  Isoetes nuttallii Forrest Freund 2016-5-19 258 Lassen Pappoose meadow. Comment
  JEPS127206  Isoetes orcuttii Lowell Ahart, John Dittes 2016-6-7 21016 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-BC324778  Iva axillaris P. Monnet 1913-7-4 826 Lassen Honey Lake 1219 Comment
  CAS-BOT-BC148543  Ivesia paniculata James R. Shevock 1986-7-20 11740 Lassen Ash Valley BLM Research Natural Area. Along Ash Valley Road about 16 miles west of Madeline and U.S. highway 395 - Modoc Plateau 1550 Comment
  CHSC68763  Ivesia paniculata Vernon H. Oswald; Lowell Ahart 1997-5-27 8494 Lassen North of Susanville on Forest Route 38N04 (between Hwy. 139 near Willow Creek Guard Station and Coyote Flat), 0.1 mi east of Hwy. 139. On the north side of the creek paralleling the road. 1546 Comment
  SEINET3860195  Ivesia paniculata Thomas W. Nelson, Jane P. Nelson 1980-7-6 5984 Lassen Ash Valley along Adin-Madeline Rd., 16 mi E of Adin.; 0 1554 Comment
  UC1567359  Ivesia paniculata G. Schoolcraft 1980-7-14 306 Lassen w of Madeline; Ash Valley 1548 Comment
  CHSC47521  Juncus balticus Lowell Ahart; John Thomas Howell 1974-7-9 542 Lassen At the south edge of Eagle Lake. 1584 Comment
  UC1100988  Juncus balticus Malcolm A. Nobs and S. Galen Smith 1949-7-21 1062 Lassen 4 mi n Madeline Comment
  UC1142944  Juncus balticus subsp. ater A. L. Hormay 1941-6-18 4 Lassen Little Harvey Valley Lassen National Forest 1676 Comment
  UCD141331  Juncus balticus subsp. ater John Thomas Howell 1959-9-23 34881 A Lassen North end of Juniper Lake. 2057 Comment
  HSC26016  Juncus bryoides F. J. Hermann 1972-5-17 24752 Lassen 8 mi. W of Susanville 1677 Comment
  JEPS121285  Juncus bufonius var. bufonius Lowell Ahart, John Dittes 2013-7-23 18907 Lassen On the SW side of a man-made pond, about 160 yards NW of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley. Comment
  CHSC117204  Juncus bufonius var. occidentalis Lowell Ahart; John Dittes 2016-6-7 20988 Lassen West edge of pond, 120 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. 1289 Comment
  RSA129757  Juncus confusus L. R. Short, J. Warren 1936-6-10 S- 418 Lassen MDM, Burgess Spr. Exp. Range. 1857 Comment
  UCR88026  Juncus confusus J. T. Howell, G. H. True 1973-8-1 50171 Lassen Sierra Nevada Range, Gold Run Creek Road, south of Susanville, Diamond Range 1585 Comment
  CHSC66277  Juncus hemiendytus var. abjectus Vernon H. Oswald; Lowell Ahart 1996-6-24 7852 Lassen Modoc Plateau. Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake. At a pile of fence posts on the W side of the meadow just S of the cabins. 1633 Comment
  JEPS94376  Juncus hemiendytus var. hemiendytus Vernon Oswald and Lowell Ahart 1997-6-24 8653 Lassen s of Susanville (just s of the small pond on the crest of Diamond Mountain, about midway between Aspen Flat and Red Rock Lookout); crest of Diamond Mountain 2249 Comment
  UC1100950  Juncus mexicanus Verne Grant and Irving Schneider 1947-7-30 8191 Lassen s point of w embayment Tule Lake Comment
  CHSC61072  Juncus nevadensis Vernon H. Oswald; Lowell Ahart 1993-8-3 5745 Lassen Cooper Swamp located E of Silver Lake just E of the Caribou Wilderness, ca. 13 mi (air) N of Lake Almanor. SW edge of the swamp. 1932 Comment
  JEPS28702  Juncus nevadensis George W. Gillett 1957-7-28 924 Lassen above trail to Widow Lake junction with Snag Lake trail (at upper end of Butte Lake); Lassen Volcanic National Park, Butte Lake 1859 Comment
  UC1601784  Juncus nevadensis Baker and Nutting 1894-7-3 Lassen Dixie Creek Comment
  UCD141628  Juncus nevadensis G. Schoolcraft 1993-6-21 2301 Lassen Skedaddle Mountains. 1828 Comment
  SEINET6175260  Juncus nodosus B. L. Wilson, D. Lytjen, N. Otting 2005-7-29 11503 Lassen Blue Door Flat, 7 or 8 miles east of Highway 395 on county road 510 1774 Comment
  UC1133742  Juncus tenuis Robert W. Gardner 1939-6-28 G- 33 Lassen Burgess Spring Experimental Range Halls Flat Quad. 1706 Comment
  CHSC92739  Juncus trilocularis L. P. Janeway 2005-7-3 8456 Lassen High Cascade Range. Near large shallow stock pond 0.3 km west of Road 35N38 (road to Blacks Ridge Lookout Tower), 1.9 road km south or Road 22; 2.3 air km northwest of the lookout. 1580 Comment
  CHSC117195  Juniperus occidentalis Lowell Ahart; John Dittes 2016-6-7 20974 Lassen 20 yards west of the pond, about 100 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. 1289 Comment
  RSA647569  Juniperus occidentalis var. occidentalis Marion P. Harthill 1972-6-17 812 Lassen Ravendale 1768 Comment
  UCR3784  Juniperus osteosperma Frank C. Vasek 1964-9-12 640912- 03 Lassen Calif. Hwy 70 (alt. US Hwy 40), 1.6 mi west of its junction w/ US Hwy 395 Comment
  POM68597  Kelloggia galioides Marcus E. Jones 1897-6-28 s.n. Lassen Diamond Mountain; Susanville; Perkin's Ranch. 1829 Comment
  RSA121074  Kelloggia galioides G. A. Fischer, Irwin H. Johnson 1933-7-14 F- 255 Lassen Lassen Forest. 1784 Comment
  JEPS97318  Kochia scoparia Vernon H. Oswald and L. Ahart 1995-8-14 7172 Lassen T30N R15E center N side Sec. 15, 4425 ft, Modoc Plateau, Sagebrush Scrub, alkaline clay soil. Hwy. 395 crossing a flooded playa (Mud Flat) 1.8 mi N of Smoke Creek Ranch Rd., N of Susanville 1348 Comment
  JEPS107461  Koeleria macrantha Lowell Ahart, John Dittes 2005-6-1 11860 Lassen On the east side of the poor dirt road, about 1/2 mile west of Scott Road, Long Valley, about 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.9 miles (air) northwest of Hallelujah Junction 1448 Comment
  CAS-BOT-BC271331  Koeleria pyramidata Marcus E. Jones 1897-6-19 s.n. Lassen Chat 1615 Comment
  CAS-BOT-BC340319  Kyhosia bolanderi A. A. Heller 1937-9-1 15342 Lassen About a mile east of Westwood 1524 Comment
  UC891450  Kyhosia bolanderi A. A. Heller 1937-9-1 15342 Lassen about a mile e of Westwood Comment
  CAS-BOT-BC341485  Lagophylla ramosissima John Thomas Howell 1974-7-10 50527 Lassen Elysian Valley 1325 Comment
  CAS-BOT-BC341486  Lagophylla ramosissima John Thomas Howell 1975-7-23 51391 Lassen Susanville 1295 Comment
  CAS-BOT-BC341480  Lagophylla ramosissima Margaret Williams 1974-7-27 74 -L-62 Lassen Area near Hallelujah Junction, west of Hwy 395 and south of Hwy 70 1493 Comment
  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
  CHSC112414  Lasthenia glaberrima Lowell Ahart; John Dittes, Todd Sloat 2013-6-8 18739 Lassen Near a drainage filled with dirt from construction of a pond, about 100 yards west of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC99279  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
  UC727153  Lathyrus brownii A. A. Heller 1938-6-4 15147 Lassen 1 mi e Fredonyer Pass (e of Westwood) 1706 Comment
  UC864541  Lathyrus brownii A. A. Heller 1938-6-4 15147 Lassen 1 mi e Fredonyer Pass 1706 Comment
  POM253256  Lathyrus pauciflorus subsp. brownii A. A. Heller 1938-6-4 15148 Lassen 1 mile east of Fredonyer Pass. 1707 Comment
  CAS-BOT-BC321496  Layia glandulosa Clare B. Hardham 1961-6-16 7486 Lassen Gold Run Creek, S of Susanville. Comment
  CHSC71072  Layia glandulosa Vernon H. Oswald; Lowell Ahart 1998-5-22 9109 Lassen Road to ORV parking area in Fort Sage Mtns. 0.6 mi east of Fort Sage Rd., ca. 5 mi NNE of Doyle. 1402 Comment
  JEPS107446  Layia glandulosa Lowell Ahart, John Dittes 2005-6-1 11889 Lassen On the north side of Scott Road, Long Valley, about 4 1/4 miles (air) north of the intersection of Scott Road and Highway 70, 5.5 miles (air) northwest of Hallelujah Junction 1433 Comment
  CAS-BOT-BC321495  Layia glandulosa M. S. Taylor 1982-5-29 4571 Lassen 500 yds NE of the jct of Hwy 70 with Hwy 395 at Hallelulia Jct, ca 23 mi N of Reno. 1524 Comment
  SEINET10879114  Layia glandulosa David B. Dunn, Billy Joe Cox 1971-6-2 Dunn 17795 Lassen 6 mi. N of Hallelujah Jact. on U.S. Hwy. 395, in Artemisia tridentata, Pinyon pine, Jeffery Pine along high ridge & in sandy wash. 1402 Comment
  SEINET11807266  Layia glandulosa N. H. Holmgren, Holmgren, P. K. 1980-1 9506 Lassen Observation Peak, S side of mountain, 18 km (11 mi) airline distance E of Ravendale 1890 Comment
  POM361661  Layia glandulosa subsp. glandulosa Christopher Davidson 1975-6-7 2752 Lassen 1 mi E of Beckwourth Pass on Hwy 70. 1524 Comment
  CAS-BOT-BC534922  Lemna turionifera Peter H. Raven; Otto T. Solbrig 1958-6-17 13261 Lassen Ditch along United States Highway 395, 2.1 milesnorth-east of Standish Comment
  HSC95343  Lemna valdiviana Gordon Leppig, Juli Neander, Kai Neander 1997-7-26 697 Lassen Modoc National Forest, Blue Lake Ranch 1970 Comment
  CAS-BOT-BC88695  Lepidium acutidens M. S. Baker; Frank Nutting 1894-1-1 s.n. Lassen Dixey Valley. Comment
  CHSC48334  Lepidium campestre Vernon Oswald 1986-5-28 2046 Lassen Hwy 36, 9.8 mi e of the Plumas-Lassen County line, 2.0 mi sw of Fredonyer Pass. Along the road. 1584 Comment
  HSC68797  Lepidium dictyotum Gary Schoolcraft 1980-5-7 221 Lassen Honey Lake Island, N shore 1220 Comment
  NY23186  Lepidium dictyotum A. Tiehm 1980-5-29 5747 Lassen North end of Honey Lake Valley, just north of Hot Springs 1.1 air miles north-northwest of Wendel 1231.4 Comment
  UCD55157  Lepidium dictyotum Ellen Dean 2006-5-15 3045 Lassen E of town of Susanville. Along C.R. A27 (Center Rd.) Grounds of California Correctional Facility. 1247 Comment
  CAS-BOT-BC89493  Lepidium heterophyllum John Thomas Howell 1976-7-19 51957 Lassen Sierra Nevada. Southwest of Susanville on Gold Run Road. 1341 Comment
  CAS-BOT-BC89719  Lepidium latifolium John Thomas Howell 1975-7-23 51384 Lassen Sierra Nevada. Eagle Lake Cucumber Company yard. Susanville. 1295 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
  CHSC4915  Lepidium perfoliatum A. E. Anderson 1967-7-1 69 Lassen North side of road 0.5 mi. e of Murrer Ranch buildings. 1371 Comment
  HSC63973  Lepidium perfoliatum J. P. Smith, J. O. Sawyer 1971-5-23 4665 Lassen Junction of Hwy. 139 and road to Thermo Comment
  UCD115849  Lepidium perfoliatum R. Tofsrud 1951-7-13 s.n. Lassen Susanville area. Comment
  CAS-BOT-BC12815  Lepidium perfoliatum Ira L. Wiggins; Dorothy B. Wiggins 1961-6-11 16332 Lassen 13.5 miles east of Susanville. Comment
  CHSC117207  Leptosiphon bolanderi Lowell Ahart; John Dittes 2016-6-7 20979 Lassen 10 yards west of the pond, 80 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. 1289 Comment
  CHSC99130  Leptosiphon bolanderi Lowell Ahart; John Dittes 2008-6-19 14892 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
  JEPS126521  Leptosiphon bolanderi Lowell Ahart, John Dittes 2016-6-7 20979 Lassen 10 yards west of the pond, 80 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. Comment
  HSC25423  Leptosiphon harknessii D. H. Norris, Thomas W. Nelson, S. Dowty 1971-6-22 19252 Lassen Harvey Valley near Cone Springs Comment
  RSA0092312  Leptosiphon harknessii Jim M. Andre, Tasha La Doux, Senna Andre, 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. 1732 Comment
  CAS-BOT-BC334598  Leucanthemum vulgare G. Schoolcraft 1987-6-17 1746 Lassen Along Hwy 36 about 3 miles east of Westwood 1554 Comment
  CHSC101047  Leucocrinum montanum John Dittes 2008-5-22 1524 Lassen Modoc Plateau; ca. 15.3 air miles southeast of Adin, ca. 3.5 air miles east of Hayden Hill, ca 465 feet east of intersection of Hwy 139 and FS Road 36N02; alluvial terrace and toe-slope on northeast side of Willow Creek. 483 Comment
  UC1553404  Leucocrinum montanum G. Schoolcraft 1988-5-11 1794 Lassen n of Said Valley Reservoir (along Hwy 139) 1676 Comment
  CAS-BOT-BC508369  Leucocrinum montanum Louella Bass 1973-4-29 31 Lassen Elysian Valley, Sierra Nevada 1325 Comment
  HSC63766  Leucocrinum montanum Teresa Prendusi 1980-5-6 Lassen W side of SR 395, 0.25 mi. from old gas station 1616 Comment
  NY962821  Leucophysalis nana N. H. Holmgren 1978-6-12 8936 Lassen 0.8 km (0.5 mi) east of Rye Patch Canyon summit, 16 km (10 mi) airline distance southeast of Ravendale 1920 Comment
  UC1136693  Lewisia nevadensis A. Simontacchi 1940-5-5 714 Lassen 10.2 mi e Coyote Spring; Lassen National Forest, Halls Flat quadrangle Comment
  UC1583992  Lewisia nevadensis G. Schoolcraft 1990-5-15 2044 Lassen 3 mi s Nubieber; John's Valley 1402 Comment
  JEPS128173  Leymus cinereus M. C. Mahoney, J. A. Nash 2017-8-22 CA 350 -88 Lassen South of Pilgrim Lake of Buckhorn Byway. From Susanville take Highway 395 north to Buckhorn Byway and follow the road east past Buckhorn Reservoir and Dry Lake. Then take a right onto an unnamed road that is right on the CA/NV border. Continue for 1/2 mile. Population is on either side of the road. Comment
  JEPS68548  Leymus cinereus W. L. Jepson 1918-8-2 7795 Lassen Constantia Honey Lake Valley 1219 Comment
  UC1037094  Leymus cinereus Leo Whitney 1933-7-16 2207 Lassen ca 16 mi w upper end of Eagle Lake; Lassen National Forest, Harvey Mountain Comment
  UC593547  Leymus cinereus E. B. Babcock and G. L. Stebbins Jr. 1936-6-8 1779 Lassen 4 mi s Ravendale (e-facing slope of creek at n end of Valley); Secret Valley 1371 Comment
  UC921130  Leymus cinereus Vesta Holt 1945-8-12 Lassen in meadows near shore of Eagle Lake Comment
  UCD64241  Leymus cinereus L. Whitney 1933-7-16 Lassen Harvey Mt., Lassen Forest. 1828 Comment
  SEINET239973 Image available Leymus triticoides G. L. Clifton 1996-6-5 34630 Lassen East of Herlong close to the railroad. 1230 Comment
  UC1037091  Leymus triticoides Leo Whitney 1933-7-5 2215 Lassen ca 8 mi nw Eagle Lake; Lassen National Forest, Slate Creek 1920 Comment
  UCD65590  Leymus triticoides R. Tofsrud 1947-7-1 218 Lassen Near Thermos. Comment
  UCD88004  Leymus triticoides H. S. Yates 1936-8-11 6061 Lassen Near Red Rock. 1341 Comment
  JEPS28660  Ligusticum grayi George W. Gillett 1957-7-21 870 Lassen Lassen Volcanic Nat'l Park, Cameron Meadow 1950 Comment
  JEPS96064  Ligusticum grayi Vernon H. Oswald and Lowell Ahart 1996-8-1 8127 .1 Lassen s.-s.w. Westwood (ca. 2 mi. n. of Dyer Mt. Lookout, Forest Rd. 28N56 (D-line), on downhill side of rd.) 1737 Comment
  HSC21517  Ligusticum grayi M. T. Milligan 1964-7-16 141 Lassen 2 mi. W on the Silver Lake Rd., along Upper Susan River. 1829 Comment
  CHSC113073  Limosella acaulis Lowell Ahart; John Dittes 2013-7-23 18889 A Lassen Around a man made pond, about 150 yards northwest of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  UC1567430  Limosella acaulis G. Schoolcraft 1989-7-24 1995 Lassen along n shore Said Valley Reservoir; n shore of Said Valley Reservoir 1630 Comment
  CAS-BOT-BC332738  Linanthus R. F. Thorne; Larry E. DeBuhr 1975-8-22 46973 Lassen Along Hwy 395 ca 6 miles N of Medeline and 4.5 miles S of Modoc county line 1615 Comment
  UC1523795  Linanthus bolanderi Gary Schoolcraft 1981-5-5 370 Lassen s of Adin (on e side of Hwy 139) 1325 Comment
  JEPS58441  Linanthus harknessii G. S. Crew and C. S. Robinson 1927-7-15 76 Lassen Feather Lake, sw Lassen County Feather Lake 1737 Comment
  JEPS58449  Linanthus harknessii W. L. Jepson 1918-8-5 7814 Lassen near South Fork Peak 1645 Comment
  RSA713161  Linanthus pungens L. P. Janeway, B. Castro 2005-7-10 8479 Lassen Northern High Sierra Nevada. Crest of the Diamond Mountains overlooking Janesville and the north end of Honey Lake; 0.2 km north of Rd. 28N01 and 0.6 km east of junction of Janesville Grade Rd (Rd 208 & 28N02) and Road 28N01. 1859 Comment
  POM74675  Linanthus pungens subsp. pulchriflorus Marcus E. Jones 1897-6-28 s.n. Lassen Top of Diamond Mt., Susanville, Perkin's Ranch. 2226 Comment
  UC1107337  Linanthus septentrionalis Jean Langenheim 1957-6-22 4367 Lassen Said Valley, ne part of Lassen County Said Valley Comment
  UC1130238  Linum lewisii A. Simontacchi 1940-6-8 841 Lassen 4.1 mi e of Halls Flat Ranger Station (Lassen National Forest); Lassen National Forest 1737 Comment
  UC1536989  Linum lewisii Gordon H. True 1936-6-25 538 Lassen e of Harvey Ranger Station (Harvey Valley); Harvey Valley 1798 Comment
  UC867779  Linum lewisii Alice Eastwood Aug 22 1912-Aug 26 1912 1853 Lassen Trail from Morgans Springs to Lassen Butte Comment
  CHSC45293  Linum lewisii var. lewisii Vernon Oswald 1986-5-28 2063 Lassen Hwy 139 between Eagle Lake and Adin, 47.2 mi n of Susanville. Scattered on a rocky and brushy slope. 1706 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
  CHSC91299  Linum lewisii var. lewisii Lowell Ahart; John Dittes 2005-6-2 11935 Lassen Along the poor dirt road, about 1/4 mile west of the Anderson Ranch home, Long Valley, about 4 3/4 miles (air) north of the intersection of Scott Road and Highway 70, 6.5 miles (air) northwest of Hallelujah Junction. 1498 Comment
  SEINET10483062  Lithophragma brevilobum Mary Susan Taylor 1974-5-4 Taylor 228 Lassen Between Eagle Lake Field Station and the marsh area ca. 1/4 mi N of the station, E side of Eagle Lake, N of Susanville. Comment
  JEPS94533  Lithophragma glabrum Vernon Oswald and Lowell Ahart 1997-6-24 8641 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
  UC773885  Lithophragma glabrum L. R. Short 1936-4-28 S- 337 Lassen Harvey Valley; Lassen National Forest, Harvey Valley 1706 Comment
  JEPS119670  Lithospermum arvense Lowell Ahart, John Dittes 2012-7-11 18351 Lassen About 100 yards east of Cable Road and Pittville Road, 2.16 miles (air) north-northeast of Pittvile, 3955 feet east of Lassen - Shasta County Line, Fall River Valley. Comment
  CHSC7743  Lomatium Beverly J. Wise 1969-5-3 113 Lassen 7.3 mi. east on Las. Ca. Rd.338, past junction with Hwy 395. 1645 Comment
  UCR73173  Lomatium G. L. Webster 1989-5-13 7718 Lassen 2.5 mi. east of Beckworth Pass 1500 Comment
  CHSC1962  Lomatium bicolor J. Wakeman 1963-5-11 Lassen Bieber. Comment
  UC614436  Lomatium bicolor var. leptocarpum L. Constance 1938-6-11 2327 Lassen 5 mi. s.w. Susanville 1371 Comment
  JEPS100465  Lomatium dissectum var. multifidum Dean W. Taylor 2001-6-28 17819 Lassen Diamond Mountains, Crystal Peak, along ridgeline at the summit 2377 Comment
  SEINET178371  Lomatium dissectum var. multifidum Marcus E. Jones 1897-6-25 Lassen Susanville. 1341 Comment
  RSA271913  Lomatium donnellii Christopher Davidson 1975-6-7 2755 Lassen 1 mile E of Beckwourth Pass on Hwy 70. 1524 Comment
  NY1141204  Lomatium donnellii M. Lavin 1982-5-16 4064 Lassen 1.5 miles east of Hallelujah Junction (U.S. 395). 22 air miles 325° from Reno, Nevada. West side of Petersen Range 1676 Comment
  JEPS125805  Lomatium foeniculaceum subsp. macdougalii William Harnach 2010-6-8 1243 Lassen 2 miles west of the California Nevada state line, north side of Fort Sage Road, northeast of Doyle, CA. Comment
  UC1123079  Lomatium macrocarpum A. Simontacchi 1940-5-17 750 Lassen 1.1 mi. s.-s.w. Dixie Spring; Halls Flat Quad. Comment
  UCD127267  Lomatium macrocarpum Beecher Crampton 1960-6-18 5722 Lassen Southern Warner Mtns., vicinity of Blue Lake Ranch. 1981 Comment
  SEINET10545797  Lomatium macrocarpum David B. Dunn, Billy Joe Cox 1971-6-2 Dunn 17756 Lassen Approx. 12 mi. S of Adin on CA Hwy. 139, in basalt & clay; along edge of road on rolling knoll, in Artemisia-Juniper assoc. 1372 Comment
  CHSC66230  Lomatium nevadense var. nevadense Vernon H. Oswald; Lowell Ahart 1996-6-24 7862 Lassen Modoc Plateau. Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake. 1633 Comment
  UC1520662  Lomatium nevadense var. nevadense Noel H. Holmgren and Patricia K. Holmgren 1980-7-4 9513 Lassen 18 km. (11 mi.) airline distance e. Ravendale (s. side Observation Peak); Observation Peak Comment
  UC1561383  Lomatium nevadense var. nevadense Barbara Ertter with Gary Schoolcraft 1987-6-16 7185 Lassen ridge w. Hot Springs VABM (Skeedaddle Mts., on n.e. side of Honey Lake); Skeedaddle Mts., Honey Lake 2133 Comment
  UC1123086  Lomatium nevadense var. parishii A. Simontacchi 1940-5-14 709 A Lassen 10.2 mi e Coyote Spring; Lassen National Forest, Halls Flat Quadrangle Comment
  UCD127700  Lomatium nevadense var. parishii Grady L. Webster 1989-5-13 7718 Lassen 2.5 mi east of Beckworth Pass. Comment
  CHSC60710  Lomatium piperi Vernon H. Oswald; Lowell Ahart 1993-6-3 5471 Lassen Champs Flat Rd. (Lassen 21/105, Forest 32N02), 1.8 mi N of Hwy 44, between Poison Lake and Susanville. 1749 Comment
  OBI48161  Lomatium ravenii Rhonda Riggins 1989-4-27 1641 Lassen US 395, 14 mi N Litchfield, 21 mi S Ravendale. 1311 Comment
  UC628465 Image available Lomatium ravenii David D. Keck and J. Clausen 1935-6-24 3738 Lassen 2 mi. s. Ravendale 1464 Comment
  CHSC13733  Lomatium triternatum var. macrocarpum C. Freeman 1973-6-27 7 Lassen Collected roadside ca. 1 mi n of the road crossing. Comment
  SEINET222482  Lomatium triternatum var. macrocarpum Noel H. Holmgren, Patricia K. Holmgren 1978-6-11 8930 Lassen Upper Smoke Creek south side of Observation Peak 7.6 km northeast of Tye Patch Canyon summit 18.5 km airline distance 1700 Comment
  UC1187701  Lomatium vaginatum Tracey and Viola Call 1961-5-30 2049 Lassen Horse Lake Road 1/8 mi w of jct with 395 about 1 1/2 mi s Ravendale; Horse Lake Road 1463 Comment
  RSA18256  Lonicera conjugialis C. B. Wolf 1929-9-1 3786 Lassen Mt. Lassen Nat'l Park, between Grassy Lake and Snag Lake. Comment
  UC1249270  Lotus corniculatus Arthur Cronquist and Arthur H. Holmgren 1959-6-17 8474 Lassen 1 mi se Milford (near Honey Lake, 26 mi se of Susanville) 1310 Comment
  CDA27193  Lotus crassifolius L. E. Allen 1967-6-4 Lassen Pinecrest Ranch, 0.5 mile south of Susanville. 0 Comment
  JEPS88234  Lotus oblongifolius var. oblongifolius Vernon H. Oswald and Lowell Ahart 1996-6-17 7818 Lassen ca. 7 mi. w. Susanville (Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36, at 6.0 mi. post e. of Devils Corral Trailhead, Modoc Plateau); Modoc Plateau, Bizz Johnson Trail 1420 Comment
  CAS-BOT-BC198254  Lupinus John Thomas Howell 1976-7-19 51949 Lassen Southwest of Susanville on Gold Run Road 1341 Comment
  RSA719890  Lupinus albifrons var. albifrons Michael A. Vincent, K. Levings, Karl Vincent 2006-7-29 12914 Lassen Along Rt. 395, ca. 6 miles southeast of Johnstonville. Comment
  CHSC118483  Lupinus angustiflorus Don Lepley 2015-6-14 Lassen Lassen National Forest. Eagle Lake Ranger District. Along Road 32N73 about 0.4 air mile east-southeast of Antelope Mt. Lookout and about 18 air miles northwest of Susanville. UTM 677436 x 4495404 2244 Comment
  NY732862  Lupinus arbustus subsp. calcaratus H. D. D. Ripley 1944-5-30 5975 Lassen Ravendale 1676 Comment
  SEINET10484649  Lupinus arbustus subsp. calcaratus Mary Susan Taylor 1982-7-27 Taylor 5051 Lassen T24n,r17e,sec.7 sw 1/4 sw 1/4. Constantia quad. Crystal peak area, diamond Mountains, ca 6 air miles sw of doyle. With haplopappus bloomeri, ceanothus Velutinus, wyethia mollis 2377 Comment
  SEINET10484655  Lupinus arbustus subsp. calcaratus Billy Joe Cox, Paul Gallian 1971-6-2 Cox 2577 Lassen 6 miles s of adin; along cal hwy 139 right-of-way; in basalt clay, grassy road Bank; artemisia, juniper assoc. 1372 Comment
  CHSC106689  Lupinus argenteus B. Ignacio 2008-5-3 Lassen Fort Sage Mountains. 1520 Comment
  UC1553386  Lupinus argenteus G. Schoolcraft 1988-8-24 1856 Lassen 16 mi e Adin; Ash Valley RNA/ACEC 1554 Comment
  CAS-BOT-BC196339  Lupinus argenteus var. argenteus John Thomas Howell 1934-6-10 11910 Lassen 2 miles s. of Madeline Comment
  CAS-BOT-BC196340  Lupinus argenteus var. argenteus Alice Eastwood; John Thomas Howell 1940-6-11 8003 Lassen Big Valley Comment
  CAS-BOT-BC208744  Lupinus argenteus var. heteranthus A. A. Heller 1938-6-23 15203 Lassen Just outside of Johnstonville on U.S. Highway #395. 1280 Comment
  CAS-BOT-BC208750  Lupinus argenteus var. heteranthus Alice Eastwood; John Thomas Howell 1940-6-15 8317 Lassen Upper Willow Creek east of Hayden Hill Comment
  CAS-BOT-BC208755  Lupinus argenteus var. heteranthus W. W. Eggleston 1927-7-14 21511 Lassen Willow Creek, near Hayden Hill, Modoc Forest 1500 Comment
  CAS-BOT-BC208756  Lupinus argenteus var. heteranthus Frank W. Peirson 1926-6-24 6852 Lassen Madeline Plains Comment
  CAS-BOT-BC208758  Lupinus argenteus var. heteranthus J. H. Christ 1949-5-22 18218 Lassen 8 miles southeast of doyle, along Hwy 395 Comment
  CAS-BOT-BC208762  Lupinus argenteus var. heteranthus Charles Piper Smith 1947-7-17 47699 Lassen Park Highway, Summit Lake Camp - Lassen Volcanic National Park Comment
  CHSC60740  Lupinus argenteus var. heteranthus Vernon H. Oswald; Lowell Ahart 1993-6-14 5514 Lassen Eagle Lake Rd. (Lassen A1), 0.5 mi SW of Spaulding Tract Rd. (Rd. 518, 33N89), ca. 3 mi W of Eagle Lake. 1810 Comment
  CHSC91670  Lupinus argenteus var. heteranthus L. P. Janeway 2005-7-3 8459 Lassen High Cascade Range. At junction of Road 22 and Road 35N40; 4.0 air km north-northwest of Blacks Ridge Lookout Tower. 1523 Comment
  CHSC93684  Lupinus argenteus var. heteranthus Lowell Ahart; John Dittes 2005-6-1 11873 Lassen On the east side of the poor dirt road, about 1/2 mile west of Scott Road, Long Valley, about 2 miles (air) northwest of the intersection of Scott Road and Highway 70, 3.8 miles (air) northwest of Hallelujah Junction. 1448 Comment
  JEPS94125  Lupinus argenteus var. heteranthus Vernon H. Oswald and Lowell Ahart 1998-5-22 9094 Lassen Hwy. 395 at an intermittent drainage crossing the rd. 2.3 mi. s. Milford 1255 Comment
  NY736923  Lupinus argenteus var. heteranthus P. A. Munz 1947-5-20 11888 Lassen Milford 1265 Comment
  SBBG126108  Lupinus argenteus var. heteranthus L. Ahart, J. Dittes 2010-7-31 16977 Lassen ca 100 yards NE of where the rd crosses Hunsinger Draw, 1.9 mi NW of Moll Reservoir, 2.8 mi W of Ash Valley, 8.4 mi SE of Adin 1520 Comment
  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
  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
  SEINET5327878  Lupinus argenteus var. heteranthus W. A. Archer 1938-6-16 6020 Lassen 5 mi W of Doyle Comment
  SEINET5327880  Lupinus argenteus var. heteranthus W. A. Archer 1938-6-16 6019 Lassen 3 mi W of Doyle 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
  JEPS91018  Lupinus argenteus var. meionanthus Dean W. Taylor 1974-6-14 3722 Lassen at summit ca. 4 mi ssw Janesville (Janesville Grade Rd.); Plumas National Forest Comment
  SEINET10969898  Lupinus brevicaulis David B. Dunn 1956-7-3 Dunn 11916 Lassen Coll. On a dry rocky slope with only an occasional juniper, considerable Artemisia tridentata. N side of the alkali flats, 31 mi. Ne of johnstonville On hwy 395. Comment
  NY746960  Lupinus breweri H. D. D. Ripley 1943-6-13 5709 Lassen 10 miles south of Milford 1768 Comment
  CAS-BOT-BC196638  Lupinus breweri var. breweri 1927-6-25 20 Lassen Lassen National Forest 1706 Comment
  RSA59517  Lupinus caudatus E. K. Balls 1950-5-21 14824 Lassen Standish, 7 miles from junction of Highway 36 and 395. 1250 Comment
  SEINET12161686  Lupinus caudatus N. E. Heiken 1978-1 57 Lassen SE of Eagle L. T31N R11E Sec22 1554 Comment
  SEINET10490613  Lupinus caudatus subsp. caudatus Jeffrey Huber 1971-6-2 Huber 140 Lassen 6 mi. N of halleluja jct on us hwy 395, in artemisia tridentata, pinyon pine, Jeffrey pine along high ridge and in sandy wash. 1402 Comment
  SEINET10490707  Lupinus caudatus subsp. caudatus David B. Dunn 1956-7-3 Dunn 11919 Lassen Collected on rolling gravelly slopes, in spots of deeper soil and also in Runoff areas from the hwy. Comment
  RSA339168  Lupinus confertus Margaret J. Williams 1983-7-31 s.n. Lassen Roadside near Janesville. 1280 Comment
  SEINET10940170  Lupinus confertus Thomas W. Nelson, Jane P. Nelson 1981-7-17 Nelson 6735 Lassen Along State Route 395, 22 mi S of Susanville, California, at milepost marker 46.80. Sagebrush scrub. Comment
  SEINET10687175  Lupinus croceus Karen M. Meyer, Andrew Townesmith 2007-7-23 Meyer 154 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
  NY747210  Lupinus lepidus var. confertus G. Schoolcraft 1982-7-14 782 Lassen Along Highway 395 near Janesville 1311 Comment
  CHSC65103  Lupinus lepidus var. sellulus Vernon H. Oswald; Lowell Ahart 1995-7-24 7138 Lassen High Cascade Range. Along Pine Creek on the upstream side of Forest Road 31N25, at the NW corner of Upper Stephens Mdws., ca. 3 mi NNE of Silver Lake, N of Lake Almanor. Locally common in dry soil at the NE corner of the impoundment on Pine Creek. 1905 Comment
  SEINET10904060  Lupinus lepidus var. sellulus Mary Merello 1993-6-27 Merello 741 Lassen Lassen National Forest at intersection of Forest Service Road 32N15 and Hwy. 94. Open conifer woodlands, dry. 1700 Comment
  UC1523798  Lupinus lepidus var. sellulus Gary Schoolcraft 1982-8-14 854 Lassen along Hwy 139 near Upper McBride Sp (se of Adin); near Upper McBride Sp. 1584 Comment
  OBI76907  Lupinus leucophyllus Anthony Baniaga 2011-7-9 437 Lassen Lassen Natl Forest. SW Pine Crk Valley. Pine Crk Valley quad. T31N R8E sec 10 NE of NE 1718 Comment
  UCD107952  Lupinus leucophyllus Verne Grant; Irving Schneider 1947-8-1 8232 Lassen Madeline Plain. Comment
  UC726776  Lupinus microcarpus var. densiflorus A. A. Heller 1938-6-23 15219 Lassen between Termo and Madeline (along U.S. Hwy 395) 1524 Comment
  CHSC112399  Lupinus microcarpus var. microcarpus Lowell Ahart; John Dittes, Todd Sloat 2013-6-9 18781 Lassen Pasture field, about 100 yards west of the north-south road, on the west side of McArthur Diversion Canal, 2.1 air-miles of Rat Farm Boat Launch, 1.2 air-miles north of McArthur, Fall River Valley, McArthur Swamp. 1007 Comment
  JEPS103183  Lupinus nevadensis G. Schoolcraft 2000-4-26 2892 Lassen East slopes of Shaffer Mountain 1584 Comment
  SEINET10452155  Lupinus nevadensis Mary Susan Taylor 1982-5-29 Taylor 4567 Lassen T22N R17E e/sw sec 23. Loyalton quad. In Sagebrush Scrub along dirt rd paral- leling Hwy 395 on its e side, ca. 0.5 mi n of 395 jct with Scott Rd, ca. 20 mi n of Reno. 5000 ft. 1524 Comment
  RSA0005618  Lupinus onustus Marcus E. Jones 1897-6-26 s.n. Lassen Susanville, Perkin's Ranch. 1463 Comment
  SCFS2168  Lupinus polyphyllus var. burkei L. Loeblich 1964-6-30 63 Lassen 17.6 mi N of Susanville on Hwy 139 in ditch 2 m E of hwy 488 Comment
  SEINET10488918  Lupinus sellulus Katherine L. Morris 1973-5-25 Morris 215 Lassen Collected 2.6 mi w of susanville, on u.s. 36, In an area of pinus jeffreyi and Purshia. Intermediate to l. Confertus (?). Comment
  SEINET6191823 Image available Lupinus sellulus subsp. sellulus B. J. Cox 1971-1 3186 Lassen 3 mi E of Westwood on CA 36 1608 Comment
  HSC28314  Lupinus sellulus var. lobbii D. H. Norris, Thomas W. Nelson, S. Dowty 1971-6-22 19159 Lassen 3 mi. N of Westwood Comment
  RSA32777  Lupinus subvexus var. subvexus A. A. Heller 1938-6-23 15219 Lassen Along U. S. H ighway 395 between Termo and Madeline. 1524 Comment
  OBI75894  Luzula comosa Anthony Baniaga 2011-8-17 505 Lassen Lassen Natl Forest. Along Silver Lake Rd (32N10) W of 31N08. Red Cinder Quad T31N R8E sec 31 SW of SW 1905 Comment
  CHSC93681  Lythrum hyssopifolia Lowell Ahart; John Dittes 2005-6-2 11969 Lassen Stream edge, Long Valley, about 4 1/2 miles (air) northeast of the intersection of Scott Road and Highway 70, 5.7 miles (air) northwest of Hallelujah Junction. 1408 Comment
  CAS-BOT-BC343697  Madia elegans John Thomas Howell 1974-7-10 50556 Lassen Elysian Valley 1325 Comment
  CHSC23515  Madia elegans Wayne O. Baum 1971-7-5 71 -16 Lassen S. slope of Gallatin Peak. 2011 Comment
  UC89447  Madia elegans T. S. Brandegee 1892-6-26 Lassen Milford Comment
  CAS-BOT-BC343691  Madia elegans Alice Eastwood 1912-8-22 1817 Lassen Morgans Springs, Lassen Butte Region Comment
  UC469045  Madia exigua Franklin P. Nutting Lassen Dixie Valley Comment
  UC1594645  Madia glomerata Vernon H. Oswald and Lowell Ahart 1992-7-16 5130 Lassen on si side Bridge Creek Spring Road (County Rd 112, Forest Rd. 31N06) (ca 0.4 mi e of Champs Flat Rd (County Rd 105, Forest Rd 32N02), between Old Station and Susanville); Feather Lake 1749 Comment
  CHSC106081  Madia gracilis Lowell Ahart; John Dittes 2010-7-31 17006 Lassen Dry meadow on the bottom of a small wash, about 5 yards north of the large culvert, where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin. 1516 Comment
  CAS-BOT-BC343054  Madia gracilis David D. Keck 1930-7-23 949 Lassen Susanville 1280 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
  UC585134  Malacothrix glabrata E. B. Babcock, G. L. Stebbins Jr. 1936-6-7 1767 Lassen ridge above Red Rock 1524 Comment
  HSC63963  Malacothrix sonchoides Teresa Prendusi 1980-5-30 Lassen Mapes Spring on hillside 1555 Comment
  CHSC64758  Malacothrix torreyi Vernon H. Oswald 1995-5-24 6786 Lassen Modoc Plateau. Wendel Rd. (Lassen 320) at milepost 18.5, ca. 1 mi e of Duck Lake Rd. On the s side of the road. 1219 Comment
  JEPS121255  Malva neglecta Lowell Ahart, John Dittes 2013-7-22 18877 Lassen E of drainage, 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
  UC1594528  Marsilea oligospora Vernon H. Oswald and Lowell Ahart 1992-7-16 5126 Lassen between Old Station and Susanville (Bridge Creek Spring Rd. (County Rd. 112, Forest Rd. 31N06), 1 mi e of Willow Spring Rd. (Forest Rd. 31N56)) 1745 Comment
  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
  JEPS88059  Marsilea vestita subsp. vestita Vernon H. Oswald and Lowell Ahart 1996-9-10 8274 Lassen sw Westwood (Mountain Meadows Reservoir, edge of reservoir between RR and Indian Ole Dam) 1539 Comment
  UC62270  Marsilea vestita subsp. vestita J. Burtt Davy Jun 17 1897-Jun 24 1897 3308 Lassen Honey Lake Valley Comment
  CHSC64862  Matricaria discoidea Vernon H. Oswald; Lowell Ahart 1995-6-19 6876 Lassen Modoc Plateau. Between Litchfield and Ravendale on Smoke Creek Ranch Rd., 0.3 mi e of Hwy. 395. Along the road. 1383 Comment
  JEPS107398  Matricaria discoidea Lowell Ahart, John Dittes 2005-6-1 11895 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
  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
  SCFS2169  Medicago sativa H. Naqui 1965-7-13 130 Lassen PCT dunes [?] bridge, Hwy 139 1402 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
  UC972186  Melica fugax Milo S. Baker 1952-4-24 12411 Lassen ca 15 mi e Chester (at old road quarry) Comment
  SEINET10452609  Melilotus officinalis Mary Susan Taylor 1982-6-12 Taylor 4654 Lassen T22N R17E ne sec 11. Beckwourth Pass quad. NW corner of Hallaleuja Jct, jct of Hwys 70 and 395, ca. 20 mi n of Reno. 5000 ft. 1524 Comment
  CDA40725  Mentha canadensis T. C. Fuller, R. C. Bechtel & R. Bradley 1981-7-9 20383 Lassen West end of the dam of Smoke Creek Reservoir. 0 Comment
  CDA36651  Mentzelia albicaulis S. E. Piper 1943-7-2 Lassen 0.5 mile east of Herlong. 0 Comment
  RSA152590  Mentzelia albicaulis I. L. Wiggins, Dorothy Wiggins 1961-6-11 16340 Lassen 13.5 mi. E. of Susanville. Comment
  CHSC48605  Mentzelia congesta Vernon Oswald 1986-5-28 2054 Lassen Rd. 201 on the w side of Eagle Lake, 28.7 mi n of Hwy 36, 6.8 mi sw of Hwy 139. 1584 Comment
  CHSC60752  Mentzelia congesta Vernon H. Oswald; Lowell Ahart 1993-6-14 5537 Lassen Eagle Lake Rd. (Lassen A1) at Sandy Beach on the W shore of Eagle Lake, ca. 2.0 mi ENE of Spaulding Tract Rd. (Rd. 518, 33N89). 1566 Comment
  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
  UC1483878  Mentzelia congesta G. Schoolcraft 1979-6-26 95 Lassen s Buckhorn Rd.; ; SE1/4 1706 Comment
  UC1609444  Mentzelia congesta Vernon H. Oswald and Lowell Ahart 1993-6-14 5537 Lassen ca 2.0 m ENE Spaulding Tract Rd. (Eagle Lake Rd. (Lassen Al) at Sandy Beach on the W shore of Eagle Lake); Eagle Lake 1566 Comment
  RSA715543  Mentzelia dispersa L. Ahart 2005-6-1 s.n. Lassen On the east side of the poor dirt road, about 1/2 mile west of Scott Road, Long Valley, about 2 air miles northwest of the intersection of Scott Road and Highway 70, 3.9 air miles northwest of Hallelujah Junction. 1449 Comment
  UC872458  Mentzelia dispersa C. L. Hitchcock 1940-5-26 6606 Lassen ca 12 m n Fall River Mills (Shasta Co.) (lava beds, On Fall River) 1371 Comment
  RSA719900  Mentzelia dispersa Michael A. Vincent, K. Levings 2006-7-29 12904 Lassen Along Rte. 36, 14.3 miles west of Susanville Comment
  SEINET5333248  Mentzelia laevicaulis R. H. Miller 1954-8-27 1116 Lassen On U.S. 395, 3 miles north of Doyle. Comment
  JEPS42757  Mentzelia montana W. L. Jepson 1918-8-2 7773 Lassen Beckwith Pass 1463 Comment
  UC420650  Mentzelia montana T. S. Brandegee 1892-6-23 Lassen Honey Lake Comment
  JEPS20798  Menyanthes trifoliata W. L. Jepson 1910-6-10 4111 Lassen East Fork of King Creek toward Turn Lakes (Lassen Peak Region); , East Fork King Creek 2164 Comment
  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
  SEINET10800109  Microseris laciniata Katherine L. Morris, Douglas G. LeDoux; David B. Dunn 1973-5-25 Morris 223 Lassen Collected in an area of sugar pine, Libocedrus, and yellow pine. 2.5 mi. N of Jct. 36 & Hwy 44. Comment
  CHSC66234  Microseris laciniata subsp. laciniata Vernon H. Oswald; Lowell Ahart 1996-6-24 7843 Lassen Modoc Plateau. Papoose Meadows located ca. 0.5 mi E of Eagle Lake Rd. (A1) and 2.5 mi S of Eagle Lake. On the W side of the meadow just S of the cabins. 1633 Comment
  JEPS114755  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
  JEPS126531  Microseris nutans Lowell Ahart, John Dittes 2016-6-7 21022 Lassen About 10 yards west of State Highway 299, Big Valley Mountains, 0.4 mile (air) northeast of Big Valley Summit, 5.0 miles (air) southwest of Bieber. Comment
  CAS-BOT-BC349296  Microseris nutans Parkison 1916-6-21 41 -a Lassen Lassen National Forest. Meadow Border, Patterson Camp 1706 Comment
  CAS-BOT-BC349298  Microseris nutans Clarence R. Quick 1961-6-21 61 -19 Lassen Adjacent to Road 21, Blacks Mt. Experimental Forest, northeast of Lassen Peak 1798 Comment
  CAS-BOT-BC349302  Microseris nutans G. Schoolcraft 1993-6-29 2317 Lassen Ash Valley, 16 mi E. of Adin 1554 Comment
  OBI48095  Microsteris gracilis Rhonda Riggins 1989-4-27 1637 Lassen Wash through volcanic boulder pavement, US 395, 8.4 mi N Litchfield, 26.6 mi S Ravendale 1311 Comment
  RSA104218  Microsteris gracilis subsp. humilis Verne Grant, Alva Grant 1956-5-17 9799 Lassen South of Secret Valley, north of Litchfield 1311 Comment
  NY963916  Microsteris gracilis var. gracilis W. W. Eggleston 1911-5-29 6762 Lassen Vicinity of Doyle Station 1290 Comment
  SEINET13764907  Mimetanthe pilosa M. J. Williams 1974-7-26 74 -L-29 Lassen 2 mi west of Hallelujah Junction, south of Hwy 70 1494 Comment
  UCR201581  Mimulus Ken Osborne 2005-4-23 s.n. Lassen 6 miles SE of Honey Lake, 1 mile west of Turtle Mountain 1276 Comment
  UC1609128  Mimulus breviflorus Vernon H. Oswald and Lowell Ahart 1993-7-8 5652 Lassen 1.9 mi n Hwy. 44 (Pittville Rd. (Lassen 111, 36N01), se edge of lake, on the e side of the railroad, which parallels the lake shore at this point); Poison Lake 1709 Comment
  UC1778584  Mimulus breviflorus S. E. Schoenig 1998-7-5 98 -71 Lassen Moist clayey soil. East side of Poison Lake, 50 meters W of Pitville Rd., 1.8 mi NW of Hwy 44. East of Railroad track and wet ditch. 1749 Comment
  UC1037226  Mimulus breweri Leo Whitney 1933-8-14 1596 a Lassen ca. 8 mi nw Eagle Lake; Lassen National Forest, Slate Creek 1920 Comment
  JEPS4710  Mimulus floribundus A. A. Heller 1938-6-22 15185 Lassen 1 mi s Westwood 1524 Comment
  UC726695  Mimulus floribundus A. A. Heller 1938-6-22 15185 Lassen 1 mi e Westwood 1524 Comment
  UCR259342  Mimulus latidens Glenn L. Clifton 1996-6-18 34671 Lassen Highway 395 at Mud Flat [c. 10 miles due north of Honey Lake] 1348 Comment
  JEPS10491  Mimulus microphyllus Jos. Grinnell 1928-6-16 Lassen Eagle Lake 1584 Comment
  HSC20714  Mimulus moschatus M. T. Milligan 1964-7-16 132 Lassen 2 mi. W on the Silver Lake Rd., along Upper Susan River. 1829 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
  JEPS24856  Mimulus nanus var. mephiticus Jean Langenheim 1957-6-26 4377 Lassen nw end Said Valley 1645 Comment
  UC1537591  Mimulus nanus var. mephiticus Gordon H. True Jr. 1936-6-26 548 Lassen 2 mi e Eagle Lake (head of creek); Willow Creek 1584 Comment
  POM43828  Mimulus nanus var. nanus Marcus E. Jones 1897-6-18 s.n. Lassen Chat. 1524 Comment
  UC1063561  Mimulus nanus var. nanus A. Simontacchi 1940-5-14 718 Lassen 3.5 mi sw Patterson Mt.; Lassen National Forest, Halls Flat Quadrangle Comment
  RSA536390  Mimulus pygmaeus Beth Corbin 1991-5-23 618 Lassen Adobe South Vernal Pool, 3 miles N of Timbered Crater, 14 miles N of Fall River Mills. 1098 Comment
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Jul 2 2013
  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
  RSA536394  Mimulus pygmaeus Beth Corbin, Kim Earll, Steve Klukkert 1991-6-18 627 Lassen Gray's Valley, 4 miles N of USFS Bogard Work Center. 1715 Comment
  UC1609384  Mimulus suksdorfii Vernon H. Oswald and Lowell Ahart 1993-6-14 5522 Lassen Eagle Lake Rd (Lassen A1) at Sandy Beach (w shore of lake, ca 2.0 mi ene of Spaulding Tract Rd. (Rd 518, 33N89)); Eagle Lake 1566 Comment
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Nov 22 2007
  HSC26594  Mimulus torreyi D. H. Norris, Thomas W. Nelson, S. Dowty 1971-6-22 19161 Lassen 3 mi. N of Westwood Comment
  JEPS8121  Mimulus torreyi Brown and Wieslander 1922-7-28 10 Lassen near Martin Springs Comment
  UC1037311  Mimulus torreyi Leo Whitney 1934-7-27 1808 Lassen 5 mi w lower end of Eagle Lake (near Antelope Mt.); Lassen National Forest 1737 Comment
  CHSC27650  Monardella odoratissima Cindy Prouty 1978-7-10 2 Lassen Colman L., several mi SE of Eagle L. 1962 Comment
  RSA0037134  Monardella odoratissima subsp. glauca L. P. Janeway, B. Castro 2012-7-2 10933 Lassen Modoc Plateau. Along Skedaddle Ranch Road 6.4 road km north of Skedaddle Creek at an unnamed tributary of Bull Creek. 1533 Comment
  CAS-BOT-BC222148  Monardella odoratissima subsp. pallida Geo. A. Fisher 1928-6-12 27 Lassen Lassen National Forest 1615 Comment
  CHSC45231  Monardella odoratissima subsp. pallida P. V. Caldwell 1972-7-8 269 Lassen Eagle Lake. Rd 32N02 about 2 mi from Summit Camp. Comment
  UC1537599  Monardella odoratissima subsp. pallida Gordon H. True Jr. 1938-7-14 961 Lassen Just north of summit Milford Grade 1767 Comment
  CAS-BOT-BC222146  Monardella odoratissima subsp. pallida A. E. Anderson 1967-7-13 92 Lassen Eastern slope of Dean's Ridge, 0.6 mi. s of Five Corners on road to Gallatin Beach 1676 Comment
  SEINET12319572  Monardella villosa Unknown 1975-1 53 Lassen NW side of Coleman Lake, ca 32m from lake's edge, ca 10.6 km NE of Susanville 1921 Comment
  CHSC99537  Monolepis nuttalliana Lowell Ahart; John Dittes 2008-6-20 14973 Lassen 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
  JEPS114695  Monolepis nuttalliana Lowell Ahart, John Dittes 2002-6-20 14973 Lassen W of where the levee road crosses Big Valley Canal, in Big Valley, about 4 mi (air) NE of the Headquarters at Ash Creek State Wildlife Area, about 7 mi (air) NE of Bieber 1263 Comment
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Oct 5 2019
  JEPS95874  Monolepis nuttalliana Vernon H. Oswald and L. Ahart 1999-6-9 9754 Lassen Northeast of Susanville and 3.8 mi south of Biscar Wildlife Management Area on BLM 26030: T31N R15E Sect. 31, 4420 ft elevation, sagebrush scrub 1347 Comment
  UC1136460  Monolepis nuttalliana A. Simontacchi 1940-6-8 843 Lassen Halls Flat Ranger Station Lassen Nat'l Forest, Halls Flat Quad., Halls Flat Ranger Sta Comment
  UC1136461  Monolepis nuttalliana A. Simontacchi 1940-6-4 810 Lassen 14.8 mi. w. Harvey Mt. Lookout; Lassen Nat'l Forest, Halls Flat Quad. 1783 Comment
  CAS-BOT-BC444693  Montia chamissoi Lassen 1927 G. S. Crew 1927-6-25 25 Lassen Lassen National Forest. Norval Flat 2051 Comment
  CHSC4797  Montia chamissoi R. Carter 1967-7-7 583 Lassen Collected at W end of reservoir in open wet meadow. Deans Meadow, 6.3 mi S of Eagle Lake Biology Station. 1828 Comment
  CHSC68757  Montia chamissoi Vernon H. Oswald; Lowell Ahart 1997-5-27 8498 Lassen North of Susanville on Forest Route 38N04 (between Hwy. 139 near Willow Creek Guard Station and Coyote Flat), 0.1 mi east of Hwy. 139. In wet gravel on the flood plain of a small creek paralleling the road. 1546 Comment
  NY497727  Montia chamissoi G. Schoolcraft 1982-6-16 703 Lassen Along Smoke Creek north of Shinn Ranch 1554.5 Comment
  CHSC54191  Montia dichotoma Vernon H. Oswald 1991-5-28 4618 Lassen Wayman Barn at the west end of Hunt Rd, Ash Creek Wildlife Area, ca. 5 miles northeast of Bieber. Locally abundant on the bed of a drying vernal pool on an undulating sagebrush flat east of the barn. 1264 Comment
  JEPS120896  Montia linearis Lowell Ahart, John Dittes, Todd Sloat 2013-6-8 18736 Lassen About 30 yards N of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley. Comment
  NY497780  Montia linearis N. H. Holmgren 1978-6-11 8915 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
  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
  UC1024657  Muhlenbergia andina Leo Whitney 1934-7-24 2195 Lassen near Bridge Creek (ca 7-8 mi sw of Eagle Lake); Lassen National Forest, Bridge Creek Camp 1737 Comment
  JEPS107815  Muhlenbergia asperifolia Lowell Ahart, John Dittes 2005-6-2 11972 Lassen Stream edge, Long Valley, about 4 1/2 miles (air) northeast of the intersection of Scott Road and Highway 70, 5.7 miles (air) northwest of Hallelujah Junction 1408 Comment
  UC188911  Muhlenbergia asperifolia Milo S. Baker Lassen Eagle Lake Comment
  UC163592  Muhlenbergia filiformis Milo S. Baker 1894-7-9 Lassen Pine Creek Comment
  CAS-BOT-BC275082  Muhlenbergia richardsonis Malcom A. Nobs; S. Galen Smith 1949-7-21 1060 Lassen 4 miles N of Madeline Comment
  RSA0115568  Muhlenbergia richardsonis Jim M. Andre, G. Clifton 1993-6-11 33424 Lassen Modoc Plateau: NW of Snowstorm Mtn, approx. 3 mi. east of Horse Lake, 12 mi. S of Ravendale. 1545 Comment
  UCD86899  Muhlenbergia richardsonis Beecher Crampton 1954-7-6 2073 Lassen 17 miles south of Ravendale, along US highway 395. 1524 Comment
  CAS-BOT-BC275156  Muhlenbergia richardsonis George W. Gillett 1957-7-22 871 Lassen Lassen Volcanic National Park. Snag Lake, S shore 1850 Comment
  RSA715554  Myosotis discolor L. Ahart, John Dittes 2005-6-1 11896 Lassen On the south side of Scott Road, east side of the railroad underpass, Long Valley, about 4.75 miles (air) north of the intersection of Scott Road and Hwy 70, 6.2 miles (air) northwest of Hallelujah Junction. 1460 Comment
  CAS-BOT-BC392253  Myosurus apetalus G. Schoolcraft 1993-6-10 2290 Lassen N. of Clark's Valley Rd. e. of Red Rock Lake 1828 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
  OBI76991  Myosurus apetalus var. borealis Anthony Baniaga 2011-6-10 325 Lassen Lassen/Modoc County. On the S side of Hwy 299, ca. 1.2 mi E of Lassen County rd 428. 1295 Comment
  JEPS114645  Myosurus minimus Lowell Ahart, John Dittes 2008-6-20 14940 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
  POM93121  Myriophyllum hippuroides Marcus E. Jones 1897-6-24 s.n. Lassen 10 to 15 miles west from Amedee. 1220 Comment
  JEPS45716  Myriophyllum quitense W. L. Jepson 1918-8-16 8002 Lassen Merrillville 1524 Comment
  UCR153449  Myriophyllum sibiricum R. F. Thorne, C. W. Tilforth 1969-9-5 39132 Lassen Said Valley Reservoir, Said Valley Reservoir: Near junction of Grasshopper Road and Highway 139 1646 Comment
  RSA634201  Myriophyllum sibiricum Robert F. Thorne, C. W. Tilforth 1969-9-5 39132 Lassen Said Valley Reservoir: Near junction of Grasshopper Road and Highway 139. 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
  JEPS94128  Nama aretioides var. californica Vernon H. Oswald and Lowell Ahart 1998-5-22 9105 Lassen ca. 5 mi. n.-n.e. Doyle (rd. to ORV parking area in Fort Sage Mts., 0.5 mi. e. of Fort Sage Rd.); Fort Sage Mts. 1371 Comment
  UC585170  Nama aretioides var. multiflora E. B. Babcock, G. L. Stebbins Jr. 1936-6-7 1773 Lassen Red Rock 1280 Comment
  UC1609381  Nama densa var. densa Vernon H. Oswald and Lowell Ahart 1993-6-14 5539 Lassen ca 2.0 mi ene Spaulding Tract Rd. (Rd. 518, 33N89) (Eagle Lake Rd. (Lassen A1) at Sandy Beach on w shore Eagle Lake); w shore Eagle Lake, at Sandy Beach 1566 Comment
  UC971978  Nama lobbii Annetta Carter 1946-8-19 1777 Lassen crest of ridge ten mi ne Susanville; ne of Susanville 1676 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
  UC125019  Navarretia breweri T. S. Brandegee 1892-7-1 Lassen Susanville Comment
  UC1609452  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
  CDA40081  Navarretia breweri T. C. Fuller 1963-6-11 10658 Lassen West side of Highway 395 at road to Horse Lake, 1.5 miles south of Ravendale. 0 Comment
  SJSU8608  Navarretia breweri P. L. Billings 1965-7-12 Lassen by Hwy 139 5 mi NE of Susanville 1158 Comment
  CHSC29859  Navarretia capillaris Robin L. Ondricek 1978-7-6 90 Lassen On the w side of Lower Dry Lake. 1645 Comment
  CHSC29885  Navarretia capillaris Robin L. Ondricek 1978-7-5 89 Lassen At the edge of the trees on the ne side of Mahogany Lake. 2057 Comment
  SEINET3894760  Navarretia intertexta Leigh A. Johnson, Haley M. Smith 2011-6-25 11 -065 Lassen Along Hwy 299 about 9.4 miles east of jct with Hwy A2 and 1.4 west of jct with Hwy 139, southwest of Adin.; 0 Comment
  UCD32670  Navarretia intertexta Beecher Crampton 1954-7-6 2072 Lassen Lassen County, 17 miles south of Ravendale, along US highway 395. 1524 Comment
  POM74488  Navarretia intertexta Marcus E. Jones 1897-7-1 10134 Lassen 7 miles south of Susanville at Perkin's Ranch 1524 Comment
  CHSC117294  Navarretia intertexta subsp. intertexta Lowell Ahart; John Dittes 2016-7-13 21131 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
  CHSC34347  Navarretia intertexta subsp. propinqua K. R. Stern 1974-6-26 5854 Lassen Ditch bank beside Railroad track, e side of Poison Lake Rd. to Pittville, 1.8 mi nw of intersection with Hwy. 44. Comment
  CHSC58848  Navarretia intertexta subsp. propinqua Vernon H. Oswald; Lowell Ahart 1992-7-16 5111 Lassen Bridge Creek entering McCoy Flat Reservoir on the S side of Hwy. 44 between Old Station and Susanville. On the bed of the creek on the bed of the reservoir. Blue-flowered plants collected at Long Lake. 1691 Comment
  JEPS121307  Navarretia intertexta subsp. propinqua Lowell Ahart 2013-7-22 18853 Lassen 10 yards S of a 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
  UC1594648  Navarretia intertexta subsp. propinqua Vernon H. Oswald and Lowell Ahart 1992-7-16 5101 Lassen 1.2 mi se County Rd. A21 (Long Lake on the s of Hwy 44, between Old Station and Susanville); Long Lake 1745 Comment
  RSA91887  Navarretia intertexta subsp. propinqua Beecher Crampton 1954-7-5 2047 Lassen State Highway 36, 4.5 miles west of Susanville 1433 Comment
  UC909095  Navarretia intertexta subsp. propinqua G. L. Stebbins Jr. 1949-8-6 4001 Lassen nw of Susanville; Hog Flat 1676 Comment
  CHSC6202  Navarretia leptalea J. B. Kimsey 1946-6-26 Lassen Pine Creek, Eagle Lake. 1615 Comment
  JEPS69637  Navarretia leptalea subsp. leptalea Brown and Wieslander 1922-8-20 86 Lassen Martin Sprs. Eagle Lake Comment
  CHSC112444  Navarretia leucocephala subsp. minima Lowell Ahart; John Dittes, Todd Sloat 2013-6-8 18778 Lassen About 30 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  POM75594  Navarretia leucocephala subsp. minima Marcus E. Jones 1897-6-18 10107 Lassen Chat. 1524 Comment
  RSA0035408  Navarretia leucocephala subsp. minima Lowell Ahart, John Dittes 2008-6-20 14952 Lassen About 100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber. 1263 Comment
  RSA702601  Navarretia leucocephala subsp. minima L. P. Janeway 2004-6-26 8145 Lassen High Cascade Range. Halls Flat; about 0.3 km east of Road 33N13; 3.5 km north of junction of Road 33N18. 1714 Comment
  UC1112253  Navarretia leucocephala subsp. minima R. C. Bacigalupi with S. Galen Smith 1957-6-28 6001 Lassen 3.1 mi s Madeline (Highway 395); Madeline Plains 1615 Comment
  UC1191627  Navarretia leucocephala subsp. minima Verne Grant and Irving Schneider 1947-7-31 8208 Lassen ne quarter of George Williams section 19 Madeline Plain Comment
  HSC96700  Navarretia leucocephala subsp. minima Thomas W. Nelson, Jane P. Nelson 1986-6-24 8183 Lassen Along SR 395 58.9 mi. N of jct. with SR 36 Comment
  RSA293374  Navarretia leucocephala subsp. minima Reino Alava 1957-7-5 1143 Lassen Along Highway 395, 10 miles N of Madeline. Comment
  UC1137583  Navarretia linearifolia subsp. linearifolia A. Simontacchi 1940-6-4 803 Lassen 7.0 mi sw Jacks Lake; Lassen National Forest, Halls Flat Quadrangle Comment
  RSA67607  Navarretia sinistra Verne Grant, Alva Grant 1950-7-13 8941 Lassen Above Fredonyer Camp on road from Westwood to Susanville 1524 Comment
  CHSC93691  Nemophila parviflora var. austiniae Lowell Ahart; John Dittes 2005-6-1 11898 Lassen On the south side of Scott Road, east side of the railroad underpass, Long Valley, about 4 3/4 miles (air) north of the intersection of Scott Road and Highway 70, 6.2 miles (air) northwest of Hallelujah Junction. 1459 Comment
  JEPS107402  Nemophila parviflora var. austiniae Lowell Ahart, John Dittes 2005-6-1 11898 Lassen On the south side of Scott Road, east side of the railroad underpass, Long Valley, about 4 3/4 miles (air) north of the intersection of Scott Road and Highway 70, 6.2 miles (air) northwest of Hallelujah Junction 1459 Comment
  JEPS2980  Nemophila parviflora var. austiniae L. Constance 1938-6-10 2324 Lassen 0.5 mi w Fredonyer Pass (junction of Crazy Harry and Westwood--Susanville Roads); w of Fredonyer Pass 1676 Comment
  UC606944  Nemophila parviflora var. austiniae L. Constance 1938-6-10 2324 Lassen 0.5 mi w Fredonyer Pass (junction of Crazy Harry and Westwood--Susanville Roads); w of Fredonyer Pass 1676 Comment
  CAS-BOT-BC231218  Nemophila parviflora var. austiniae Philip A. Munz 1947-5-18 11860 Lassen Fredonyer Forest Campground on Highway 36, W of Susanville 1508 Comment
  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
  UC1567448  Neoholmgrenia andina G. Schoolcraft 1989-6-7 1907 Lassen ne lower slopes Shaffer Mtn. 1524 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
  CHSC13791  Nicotiana attenuata Anne Linda Brisk 1969-7-10 45 Lassen 1/4 mi N of ELBS. 1554 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
  CHSC65161  Nicotiana attenuata Vernon H. Oswald; Lowell Ahart 1995-7-5 6960 Lassen Modoc Plateau. North of Honey Lake at Bull Flat on Smoke Creek Ranch Rd., 10.3 mi e of Hwy 395. At roadside. 1432 Comment
  JEPS124603 Image available Nicotiana attenuata G. R. Ostrander 1965-7-12 256 Lassen Growing along U. S. 395 15 miles N. of the junction of Calif. 70 & U. S. 395. Comment
  UC7442  Nitrophila occidentalis J. Burtt Davy Jun 17 1897-Jun 24 1897 3326 Lassen Honey Lake Valley 1219 Comment
  SEINET4174378  Nitrophila occidentalis Unknown unknown s.n. Lassen 2 mi SW of Wendel Comment
  UC1070117  Nothocalais troximoides A. Simontacchi 1940-5-17 732 Lassen 5.7 mi ssw Patterson Mountain; Halls Flat Quad. Comment
  UC1924578  Nothocalais troximoides Debra Valov 2006-5-29 2006029 Lassen Bieber off County Rd A2 c. 8.7 km east of Hwy 299 1285 Comment
  UC584293  Nothocalais troximoides G. L. Stebbins Jr. and J. A. Jenkins 1937-7-10 2309 Lassen w Milford; crest of range head of Stony Ridge 1950 Comment
  UC635505  Nuphar lutea subsp. polysepala Dorothy Tebbe 1929-7-30 132 Lassen in a pond near Lake Almanor Comment
  UCD50215  Nymphaea odorata subsp. tuberosa Daniel B. Marcum 2004-6-1 s.n. Lassen Near warm spring in the Fall River Valley, Lassen County. 1005 Comment
  HSC16519  Oenothera californica R. G. Means 1962-7-4 64 Lassen 10 mi. N of Doyle, Hwy. 395 1220 Comment
  HSC22878  Oenothera deltoides John Pratt 1970-6-14 16 Lassen East of Janesville Comment
  UCD106858  Oenothera deltoides R. N. Raynor 1939-5-31 s.n. Lassen Milford, Honey Lake Valley. Comment
  CHSC106678  Oenothera deltoides subsp. piperi Zachary Garcia 2008-5-3 Lassen Fort Sage Mtns. OHV Trailhead and Trail to Indian Springs. 1439 Comment
  JEPS94105  Oenothera deltoides subsp. piperi Vernon H. Oswald and Lowell Ahart 1998-5-22 9095 Lassen Hwy. 395 at an intermittent drainage crossing the rd. 2.3 mi. s. Milford 1255 Comment
  CHSC4767  Oenothera elata subsp. hirsutissima R. Carter 1967-7-16 621 Lassen Willow Creek Valley, E of Murrer's Ranch, 1.5 mi W of highway 139 on rd to Eagle Lake, ca. 12 mi N of Susanville, on S side of rd. Comment
  UC1562804  Oenothera elata subsp. hookeri Barbara Ertter 1987-7-24 7304 Lassen ca 3/4 mi ene Beckwourth Pass (at end of old crumbling paved rd) 1524 Comment
  UC524174  Oenothera flava subsp. flava Elmer I. Applegate 1929-6-24 5881 Lassen s Bieber; Big Valley Comment
  RSA0049672  Olsynium douglasii var. douglasii Dean Wm. Taylor 2012-5-15 21194 Lassen WindMill Flat vicinity; one mile north of the north end 1676 Comment
  CAS-BOT-BC350042  Oreostemma alpigenum var. andersonii Hans Leschke 1958-9-30 1571 Lassen Lassen Volcanic National Park. Grassy Swales 1935 Comment
  CHSC105235  Orobanche californica subsp. jepsonii Lowell Ahart; John Dittes 2010-7-31 16985 A Lassen About 100 yards northeast of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin. 1520 Comment
  JEPS103166  Orobanche corymbosa Beth Corbin 2002-7-10 1087 Lassen Madeline Plains, 5 air mi N of top of Observation Peak. 1627 Comment
  CAS-BOT-BC500271  Orobanche uniflora subsp. occidentalis H. C. Cantelow 1941-5-22 s.n. Lassen 13.5 mi W of Susanville, at Fredonyer Pass Comment
  UC1523713  Orthocarpus cuspidatus subsp. cryptanthus Gary Schoolcraft 1981-7-6 616 Lassen near top Goodrich Mtn.; near top of Goodrich Mtn. 1828 Comment
  POM44258  Orthocarpus hispidus Marcus E. Jones 1897-6-19 s.n. Lassen Chat. 1616 Comment
  RSA712893  Orthocarpus lacerus L. P. Janeway 2005-7-3 8454 Lassen High Cascade Range: Near large shallow stock pond 0.3 km west of Road 35N38 (road to Blacks Ridge Lookout Tower), 1.9 road km south or Road 22; 2.3 air km northwest of the lookout. 1580 Comment
  POM82978  Osmorhiza berteroi Marcus E. Jones 1897-6-28 s.n. Lassen Diamond Mountain. Susanville. Perkin s Ranch. 1829 Comment
  OBI75887  Osmorhiza berteroi Anthony Baniaga 2011-8-16 501 Lassen Lassen Natl Forest. Just N of intersection 32N10H with F.S. 10. Red Cinder quad T30N R8E sec 18 NW of NW 1905 Comment
  SD7584  Osmorhiza occidentalis Mrs. R. M. Austin 1879-1 Lassen Comment
  CHSC101059  Packera cana John Dittes 2008-5-22 1534 Lassen Modoc Plateau; ca. 15.4 air miles southeast of Adin, ca. 3.6 air miles east of Hayden Hill, ca 0.3 mile southeast of intersection of Hwy 139 and FS Road 36N02; edge of wooded volcanic toe-slope on northeast side of Willow Creek. 485 Comment
  CHSC99145  Packera cana Lowell Ahart; John Dittes 2008-6-19 14877 Lassen Open flat, east bank of Willow Creek, about 30 yards northeast of Highway 139, near Forest Road 36N02, about 19.6 miles east-southeast of Bieber. 1578 Comment
  HSC69079  Packera cana Gary Schoolcraft 1979-7-11 143 Lassen S-face of Observation Peak 2317 Comment
  UC187441  Packera streptanthifolia T. S. Brandegee 1892-6-26 Lassen Milford Comment
  UC35992  Packera subnuda M. S. Baker and Frank Nutting 1894-7-12 Lassen Pine Creek Comment
  CAS-BOT-BC10388  Paeonia brownii Margaret Williams; Steven Williams 1974-7-26 74- 2 -14 Lassen Near Hallelujah Junction, west of Hwy 395 and south of Hwy 70. 1493 Comment
  CAS-BOT-BC10426  Paeonia brownii 1927-7-1 47 Lassen Bogard R.S. pasture, Lassen Forest 1712 Comment
  CDA24372  Paeonia brownii T. C. Fuller 1962-6-13 8997 d Lassen 0.5 mile south of Highway 36 to Chester, 2 miles west of Westwood. 0 Comment
  HSC63735  Paeonia brownii Teresa Prendusi 1980-4-22 Lassen Along State Rte. 139, 0.5 mi. NE of Susanville 1280 Comment
  RSA624912  Paeonia brownii B. J. Cox, D. B. Dunn 1971-6-2 2604 Lassen 6 mi. N. of Hallelujah Jct. on U.S. Hwy 395 in Artemisia tridentata. Pinyon pine, Jeffery Pine along high ridge and in sandy wash. 1402 Comment
  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
  SEINET223918  Panicum capillare subsp. capillare Arnold Tiehm 1980-5-29 5759 Lassen Amedee Hot Springs Comment
  SEINET3133156  Panicum lanuginosum var. fasciculatum R. W. Spellenberg 1965-7-15 1229 Lassen Lassen Volcanic NP, Devil's Kitchen Comment
  CHSC77180  Pastinaca sativa G. Schoolcraft 1992-6-18 2242 Lassen About 1.8 miles east of Susanville on A27. 1261 Comment
  UC1258487  Pectocarya penicillata G. Schoolcraft 1980-5-8 231 A Lassen e Herlong; Bureau of Land Management 1219 Comment
  JEPS10720  Pedicularis attollens Brown and Wieslander 1922-7-23 29 Lassen Martin Springs; Eagle Lake Comment
  CAS-BOT-BC7094  Pedicularis attollens subsp. protogyna Francis Whittier Pennell 1940-6-10 25771 Lassen Route 36 road to Coppervale R.S., E of Westwood 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
  OBI75871  Pedicularis groenlandica Anthony Baniaga 2011-8-9 494 Lassen Lassen Natl Forest. About 1/2 mi W of Griffith Hill, S of 30N21. Swain Mtn quad T30N R8E sec 8 NW of NW 1950 Comment
  SEINET10549211  Pedicularis semibarbata Mary Merello 1993-6-28 Merello 754 Lassen Lassen National Forest. Along Forest Service Road 33N02 to Harvey Mountain Lookout and Harvey Valley. Open pine scrub and sagebrush woodland. 1740 Comment
  SEINET10931175  Pedicularis semibarbata Katherine L. Morris 1973-5-25 Morris 236 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
  CHSC12945  Penstemon cinicola K. R. Stern 1974-6-26 5852 Lassen Vicinity of Cold Spring, e of Butte Lake, Cinder Cone trail, Lassen Volcanic National Park. 1859 Comment
  PASA868  Penstemon confertus var. procerus Margaret Stason 1932-6-23 438 Lassen Kelleys Camp, Warners Creek Comment
  RSA715656  Penstemon deustus subsp. heterander L. Ahart, John Dittes 2005-6-2 11979 Lassen North side of a poor dirt road, Long Valley, about 4.5 mi. (air) northeast of the intersection of Scott Rd. and Highway 70, 5.7 mi. (air) northwest of Halleluiah Junction. 1411 Comment
  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
  JEPS29103  Penstemon deustus var. pedicellatus Lauramay T. Dempster 1961-6-17 1679 Lassen Highway 395 just w Tule Mt.; just w of Tule Mt. 1645 Comment
  UC477496  Penstemon deustus var. pedicellatus A. G. Brenneis 1928-7-3 12 Lassen Jesson Valley Lassen Forest, Jesson Valley 1463 Comment
  CHSC23498  Penstemon gracilentus Wayne O. Baum 1971-7-7 71 -85 Lassen E. slope of Gallatin Peak. 1981 Comment
  CHSC68880  Penstemon gracilentus Vernon Oswald; Lowell Ahart 1997-6-24 8589 Lassen South of Susanville on the north side of Diamond Mtn. on Forest Rd. 29N43, 1.2 miles east of Gold Run Rd. (29N10). 1685 Comment
  HSC69068  Penstemon gracilentus Gary Schoolcraft 1980-8-13 352 Lassen N face of Diamond Mtn., S of Susanville 1982 Comment
  JEPS27801  Penstemon gracilentus Frances D. Payne 1929-7-12 81 Lassen Lost Lake e drainage..Warner Range, Skunkcabbage and Silver Creeks... (watersheds of Skunkcabbage and Silver Creeks, eastern drainage of the s end of the Warner Range) 2286 Comment
  NY600719  Penstemon gracilentus A. M. Alexander 1946-8-13 5157 Lassen West side of Eagle Lake Comment
  UC1063167  Penstemon gracilentus H. P. Hagge 1935-9-12 27 Lassen Logan Mtn. Eagle Lake Quad., Logan Mtn. Comment
  SEINET10325483  Penstemon gracilentus K. A. Vincent 1986-7-19 4382 Lassen Sierra Nevada Roop Mtn.; common in burned area in pine-spruce forest along CA A1 at Eagle Lake Summit ca 7.6 mi N of j 1932 Comment
  CHSC68881  Penstemon heterodoxus var. heterodoxus Vernon Oswald 1997-6-24 8643 Lassen South of Susanville near the samll pond on the crest of Diamond Mtn., about midway between Aspen Flat and Red Rock Lookout. 2249 Comment
  POM195120  Penstemon neotericus D. D. Keck 1930-7-23 957 Lassen 2 miles east of Westwood. 1494 Comment
  SEINET11262098  Penstemon neotericus Robert L. Johnson, Mikel R. Stevens 2015-7-10 3937 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 1563 Comment
  NY627269  Penstemon neotericus C. B. Wolf 1937-8-7 9068 Lassen Northern Sierra Nevada, Red Bluff-Susanville Road, 11.5 miles east of Chester 1493.5 Comment
  POM172676  Penstemon newberryi subsp. newberryi Franklin Nutting 1894-7-30 s.n. Lassen Silver Lake. Comment
  UC27480  Penstemon newberryi var. newberryi Milo S. Baker 1891-6 Lassen Silver Lake Comment
  NY640119  Penstemon procerus var. procerus N. H. Holmgren 1978-6-11 8914 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
  SEINET5323576 Image available Penstemon procerus var. procerus C. G. Gulling 1905-1 s.n. Lassen Big Meadows Comment
  CHSC36494  Penstemon roezlii Theresa Costa 1982-6-4 32 Lassen Ca. .5 mi e of Murrers Upper Meadow, heading towards meadow. Comment
  CHSC5913  Penstemon roezlii R. Gein 1946-6-26 Lassen Eagle Lake. Pine Creek bridge. 1584 Comment
  CHSC66407  Penstemon roezlii Vernon H. Oswald; Lowell Ahart 1996-6-17 7785 Lassen Modoc Plateau. Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville. Scattered plants along the trail on the N side of Hwy. 36 between the trail and highway bridges spanning the Susan River. 1432 Comment
  NY641730  Penstemon roezlii R. G. Olmstead 1984-6-27 582 Lassen 10.3 miles east from U.S. 395 pm Rye Patch Canyon road. 1603.3 Comment
  JEPS103216  Penstemon roezlii G. Schoolcraft 1989-7-3 1947 Lassen Diamond Mtns. on Diamond Peak 2346 Comment
  SEINET226061  Penstemon roezlii M. Lavin 1982-5-30 4122 Lassen E of Hallelujah Junction 22 air mi NW of Reno W side of Petersen Mtns 1676 Comment
  JEPS128128  Penstemon rydbergii Catherine Bauer with Ellen Bauer Benson 2017-8-18 25 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-BC239500  Penstemon rydbergii var. oreocharis John Thomas Howell 1934-7-7 12460 Lassen Board Ranger Station Comment
  CAS-BOT-BC239508  Penstemon rydbergii var. oreocharis H. D. Ripley; R. C. Barneby 1943-6-13 5706 Lassen 8 miles S. of Milford 1859 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
  CHSC12939  Penstemon rydbergii var. oreocharis K. R. Stern 1974-6-26 5869 Lassen E end of Champs flat. Comment
  JEPS6627  Penstemon rydbergii var. oreocharis A. A. Heller 1938-6-22 15182 Lassen along Highway #36 one mi e Westwood; e of Westwood 1524 Comment
  RSA59553  Penstemon rydbergii var. oreocharis E. K. Balls 1950-5-22 14830 Lassen 0.5 mi N of turnoff to Heir, Hwy 395, between Milford and Doyle. 1280 Comment
  UC1142926  Penstemon rydbergii var. oreocharis A. L. Hormay 1941-6-25 22 Lassen Burgess Spring Lassen National Forest, Burgess Spring 1676 Comment
  CHSC75549  Penstemon speciosus Vernon H. Oswald; Lowell Ahart 1999-6-9 9747 Lassen Northeast of Susanville on County Rd. 216 (to Karlo and Biscar Wildlife Management Area) 5.2 mi west of Hwy. 395, 0.2 mi east of the RR crossing at karlo. 1353 Comment
  HSC35070  Penstemon speciosus D. H. Norris, T. Nelson, S. Dowty 1971-6-22 19189 Lassen Harvey Valley near Cone Springs Comment
  JEPS11507  Penstemon speciosus Milo S. Baker 1890-1 Lassen Honey Lake Valley Comment
  NY661007  Penstemon speciosus A. J. Cronquist 1959-6-16 8455 Lassen 26 miles northwest of Reno Comment
  RSA340000  Penstemon speciosus Noel Holmgren, Patricia K. Holmgren 1980-7-5 9518 Lassen Upper Smoke Creek drainage, 14.8 (9.2 mi) east of US Hwy 395 via Rye Patch Canyon, 19 km (12 mi) airline distance ESE of Ravendale. 1677 Comment
  RSA305777  Penstemon speciosus James R. Shevock 1972-5-20 1815 Lassen Near Ravendale, Hwy 395. 1220 Comment
  RSA401877  Penstemon speciosus Francis W. Pennell 1940-7-23 26254 Lassen Route 395, 2 mi north of jct with Route 24, northeast of Plumas. 1524 Comment
  NY661061  Penstemon speciosus subsp. speciosus D. D. Keck 1930-7-23 950 Lassen Susanville 1280.2 Comment
  CAS-BOT-BC239662  Penstemon sudans John Thomas Howell 1977-6-22 52404 Lassen West of Susanville near the confluence of Willard Creek and Susan River 1432 Comment
  UC1012466  Penstemon sudans Francis W. Pennell 1940-7-23 26253 Lassen Route 36 w Susanville; w of Susanville 1371 Comment
  UC1561843  Penstemon sudans Barbara Ertter with Gary Schoolcraft 1987-6-16 7178 Lassen below ridge ca 1 mi w Hot Springs VABM (ne side Honey Lake); Skeedaddle Mountains 1828 Comment
  UC169110  Penstemon sudans Marcus E. Jones 1897-6-24 Lassen 10-15 mi w Amedee; ; W from Amedee 1219 Comment
  SEINET5323637 Image available Penstemon sudans G. Schoolcraft 1998-7-14 2761 Lassen In rimrock NE of Shaffer Mtn 1356 Comment
  NY763152  Penstemon venustus K. A. Vincent 1987-6-25 4436 Lassen Sierra Nevada, southeast side of Fredonyer Butte; along north side of CA 36 ca. 11.5 miles WSW of Susanville, east of Fredonyer Pass 1585.0 Comment
  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
  CAS-BOT-BC140468  Peraphyllum ramosissimum James Moffitt 1941-5-14 s.n. Lassen Near Gilman Springs, 6 miles ssw. of Karlo 1417 Comment
  RSA0065395  Perideridia bolanderi M. P. Harthill 1971-6-21 230 Lassen Ravendale. Comment
  UC1567445  Perideridia bolanderi subsp. bolanderi G. Schoolcraft 1989-5-31 1889 Lassen Skedaddle Ranch Rd. about 6 mi n Wendel Road 1493 Comment
  CAS-BOT-BC423342  Peritoma platycarpa David Dreyer 1969-7-7 s.n. Lassen Dirt road 6 miles east of Viewland. 1371 Comment
  HSC23085  Peritoma platycarpa John Pratt 1970-7-5 63 Lassen 1250 Comment
  CAS-BOT-BC413522  Persicaria amphibia George W. Gillett 1957-7-26 921 Lassen Lassen Volcanic National Park. Butte Lake 1844 Comment
  CHSC13862  Persicaria amphibia F. T. Griggs 1973-4-25 100 Lassen Northwest shore of Black Mountain in Eagle Lake. Comment
  CAS-BOT-BC419144  Persicaria maculosa Luella Bass 1980-8-29 s.n. Lassen Standish Comment
  CAS-BOT-BC7522  Phacelia adenophora Elmer Ivan Applegate 1897-6-3 895 Lassen Madeline Plains Comment
  RSA17669  Phacelia adenophora Elmer I. Applegate 1934-5-4 8912 Lassen South end of Secret Valley Comment
  SJSU14070  Phacelia adenophora W. Savage 1964-6-30 337 Lassen by Hwy 89, 11 mi N of Susanville Comment
  SJSU9143  Phacelia adenophora M. R. Kempf 1965-7-13 296 Lassen by Hwy 139, 14 mi N of Susanville 1524 Comment
  SEINET5536525  Phacelia adenophora G. Schoolcraft 1980-6-5 252 Lassen Northeast side of Snowstorm Mtn. 1585 Comment
  CDA418  Phacelia bicolor L. Ahart 2005-6-1 11866 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. Comment
  JEPS1461  Phacelia bicolor var. bicolor J. W. Blankinship 1911-5-27 Lassen Red Rock Comment
  UC1609410  Phacelia glandulifera Vernon H. Oswald and Lowell Ahart 1993-6-14 5541 Lassen Eagle Lake Rd (Lassen A1) at Sandy Beach (w shore of lake, ca 2.0 mi ene of Spaulding Tract Rd (Rd 518, 33N89), n side of rd); Eagle Lake 1566 Comment
  CHSC64789  Phacelia gymnoclada Vernon H. Oswald 1995-5-24 6783 Lassen Modoc Plateau. 1.8 mi s of Wendel Rd. (Lassen320) on an unsigned dirt road 0.6 mi e of milepost 19.0, just e of Skedaddle Creek. 1219 Comment
  RSA0093392  Phacelia hastata var. hastata Jim M. Andre, Tasha La Doux, Senna Andre, Elias Andre 2013-7-12 31421 Lassen Along north side of Hwy 44 at south end of Grays Valley, along NF Rd# 33N02, north of Bogard Buttes, about 30 mi. west of Susanville. 1732 Comment
  POM195121  Phacelia heterophylla subsp. virgata D. D. Keck 1930-7-23 956 Lassen Fifteen miles west of Susanville. 1524 Comment
  POM203779  Phacelia heterophylla subsp. virgata J. T. Howell 1934-7-10 12553 Lassen Black s Mt. Comment
  RSA638996  Phacelia heterophylla subsp. virgata Michael A. Vincent 1999-6-9 8585 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
  CHSC28594  Phacelia humilis M. S. Taylor 1974-7-9 266 Lassen Scattered ca 3 ft e side of Whitehead Rd, ca. 1/4 mi n of Eagle Lake Field Station, ca. 13 mi nw of Susanville. Comment
  NY1057847  Phacelia humilis N. H. Holmgren 1978-6-11 8908 Lassen Vicinity of spring at fork to Painters Flat on east side of Observation Peak, 28 km (17.4 miles) east of Ravendale and 22.5 km (14 miles) airline distance. 1680 Comment
  UC133087  Phacelia humilis T. S. Brandegee 1892-7-3 Lassen Susanville Comment
  SD61075  Phacelia humilis Darley F. Howe 1964-8-1 3914 Lassen Modoc Natl. Forest, Warner Mts., 4.8 mi. from Harvey Creek on ridge road. 2133 Comment
  CHSC68891  Phacelia humilis var. humilis Vernon H. Oswald; Lowell Ahart 1997-6-24 8620 Lassen South of susanville on the north side of Diamond Mtn. at an impoundment on the edge of Forest Rd. 29N43 ca. 7.4 miles east of Gold Run Rd. (29N10), ca. 2.7 mi east of Lassen NF boundary. 2036 Comment
  UCD120530  Phacelia humilis var. humilis Beecher Crampton 1960-6-18 5728 Lassen N.E. part of county; southern Warner Mtns., vicinity Blue Lake Ranch. Comment
  RSA337275  Phacelia humilis var. humilis Noel Holmgren, Patricia K. Holmgren 1980-7-4 9511 Lassen Observation Peak, south side of mountain, 18 km (11 miles) airline distance east of Ravendale. 2195 Comment
  UCD120534  Phacelia humilis var. humilis Jack Major 1966-6-24 s.n. Lassen Above Blue Lake, Warner Mountains, Modoc National Forest, northeastern part of county (ca. 18 miles airline southeast of Likely). 1905 Comment
  CHSC5263  Phacelia imbricata 1944-7-6 Lassen Eagle Lake. Harvey Valley. 1694 Comment
  CHSC23708  Phacelia linearis R. Smallwood 1970-6-20 120 Lassen Eagle Lake Biol. Station. 5 yds e of Shepherd's Hall. Comment
  NY998460  Phacelia linearis W. W. Eggleston 1911-5-29 6721 Lassen Vicinity of Doyle Station 1290 Comment
  NY998462  Phacelia linearis N. H. Holmgren 1980-7-4 9501 Lassen Observation Peak, south side of mountain, 18 km (11 miles) airline distance east of Ravendale 1890 Comment
  UC1609380  Phacelia linearis Vernon H. Oswald and Lowell Ahart 1993-6-14 5532 Lassen Eagle Lake Rd (Lassen A1) at Sandy Beach Eagle Lake (w shore of lake, ca 2.0 mi ene of Spaulding Tract Rd (Rd 518, 33N89), upper beach between road and lake) 1566 Comment
  POM73492  Phacelia linearis Marcus E. Jones 1897-6-28 s.n. Lassen Top of Diamond Mt., Susanville, Perkin's Ranch. 2226 Comment
  UCD20363  Phacelia linearis Joe DiTomaso 2002-6-4 s.n. Lassen Lassen County, about 3 miles northwest of the junction between Nevada, Modoc and Lassen counties. Study plots near Susanville. Comment
  NY1056442  Phacelia lutea var. glandulifera A. J. Cronquist 1959-6-17 8479 Lassen 1 mile south of Ravendale, 40 miles northeast of Susanville. 1615.4 Comment
  NY1056443  Phacelia lutea var. glandulifera N. H. Holmgren 1978-6-11 8931 Lassen Upper Smoke Creek, south side of Observation Peak, 7.6 km (4.7 mi) northeast of Rye Patch Canyon summit, 18.5 km (11.5 mi) airline distance east-southeast of Ravendale. 1700 Comment
  CAS-BOT-BC134047  Phacelia mutabilis John Thomas Howell 1977-6-22 52400 Lassen north end of Eagle Lake 1584 Comment
  CHSC60749  Phacelia ramosissima var. eremophila Vernon H. Oswald; Lowell Ahart 1993-6-14 5540 Lassen Eagle Lake Rd. (Lassen A1) at Sandy Beach on the W shore of Eagle Lake, ca. 2.0 mi ENE of Spaulding Tract Rd. (Rd. 518, 33N89). 1566 Comment
  CHSC59552  Phacelia ramosissima var. ramosissima M> Meyer 1980-7-8 514 Lassen Amongst rocks (lg.) and junipers on top of Grasshopper Ridge. 1724 Comment
  CAS-BOT-BC159229  Phacelia ramosissima var. subglabra John Thomas Howell 1934-6-30 11873 Lassen Janesville Comment
  RSA370317  Phacelia tetramera Arnold Tiehm, Margaret J. Williams, Gary Schoolcraft 1986-5-12 10349 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
  NY1057982  Phacelia thermalis H. D. D. Ripley 1943-6-15 5761 Lassen Smoke Creek, northeast of Viewland 1341 Comment
  NY1057983  Phacelia thermalis H. D. D. Ripley 1943-6-15 5761 Lassen Along Smoke Creek northeast of Viewland 1311 Comment
  CHSC7695  Phalaris arundinacea Beverley J. Wise 1969-6-4 135 Lassen 2 mi. east of Susanville on Las. Co. Rd. 215. 1310 Comment
  CAS-BOT-BC250847  Phleum pratense John Thomas Howell; Gordon H. True; Margaret Williams; Louella Bass 1973-6-28 49504 Lassen Elysian Valley, west of Janesville 1325 Comment
  CAS-BOT-BC294732  Phlox speciosa James Vale 1981-5-24 s.n. Lassen Eagle Lake Comment
  RSA715978  Phlox speciosa subsp. occidentalis L. Ahart, John Dittes 2005-6-2 11928 Lassen about 1.4 miles 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. 1499 Comment
  UC23964  Phlox speciosa subsp. occidentalis M. S. Baker and Frank Nutting 1894-7-3 Lassen Dixie Mts. Comment
  RSA38466  Phlox stansburyi P. A. Munz 1947-5-19 11884 Lassen Madeline 1677 Comment
  CHSC61141  Phoenicaulis cheiranthoides Vernon H. Oswald; Lowell Ahart 1993-5-12 5386 Lassen Hwy. 44 between Poison Lake and A21 (to Westwood), 1.6 mi SE of Pittsville Rd. In a meadow on the N side of the road. 1719 Comment
  UC1609187  Phoenicaulis cheiranthoides Vernon H. Oswald and Lowell Ahart 1993-5-12 5386 Lassen 1.6 mi se of Pittsville Road (Hwy 44 between Poison Lake and A21 (to Westwood) on n side of road) 1719 Comment
  JEPS127162  Phoradendron bolleanum Lowell Ahart, John Dittes 2016-7-13 21136 Lassen 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at southern slope of Big Valley. Comment
  RSA0027357  Phoradendron juniperinum John F. Emmel 1994-7-17 1332 Lassen Along road near north base of Observation Peak. 1768 Comment
  UC769862  Phragmites australis R. F. Hoover 1940-10-11 4682 Lassen s Doyle; Long Valley Comment
  CAS-BOT-BC58236  Phyllodoce breweri Ella Dales Cantelow 1941-9-13 3599 Lassen Mt. Lassen Nat. Park. Comment
  CHSC60871  Pilularia americana Vernon H. Oswald; Lowell Ahart 1993-7-8 5648 Lassen Pittville Rd. (Lassen 111, 36N01) near its intersection with 33N11, 0.4 mi N of Hwy. 44, near the SE end of Poison Lake. 1709 Comment
  SEINET10530757  Pinus jeffreyi Jeffrey Huber 1971-6-2 Huber 141 Lassen 6 mi N of Halleluja Jct on US Hwy 395, in Artemesia tridentata, Pinyon pine, Jeffrey pine along high ridge and in sandy wash. 1402 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
  NY951542  Pinus ponderosa var. ponderosa D. H. Goldman 2004-11-6 2941 Lassen Along the N side of Forest Road 32N08, just N of Pine Creel Valley and about 1.8 miles E of the intersection with Rt. 44. Crater Lake Mountain, Lassen National Forest 1725 Comment
  RSA0011556  Plagiobothrys R. F. Thorne, Larry E. DeBuhr 1975-8-22 46996 Lassen Along Highway 395 ca. 5 miles north of Madeline and ca. 5.5 miles south of Modoc county line 1616 Comment
  CHSC27607  Plagiobothrys cognatus Nancy Heiken 1978-7-5 79 Lassen S of Eagle Lake at E shore of Mahogany Lake; meadow at lake margin. 2060 Comment
  CHSC115608  Plagiobothrys cusickii Lowell Ahart; John Dittes 2015-7-13 20305 Lassen About 100 yards southwest of the 4 tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC93699  Plagiobothrys cusickii Lowell Ahart; John Dittes 2005-6-2 11954 Lassen Meadow, along a poor dirt road, about 1 mile east of the Anderson Ranch home, Long Valley, about 4 1/2 miles (air) north of the intersection of Scott Road and Highway 70, 6.0 miles (air) northwest of Hallelujah Junction. 1425 Comment
  HSC104018  Plagiobothrys cusickii L. Ahart, John Dittes 2012-7-9 18284 Lassen About 5.5 air mi. NE of Bieber, Ash Creek Wildlife Area, ~100 yds. SE of tall poles 1268 Comment
  JEPS114769  Plagiobothrys cusickii Lowell Ahart, John Dittes 2008-6-20 14914 Lassen In vernal pools, about 100 yards southwest of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber 1263 Comment
  UC78130  Plagiobothrys cusickii T. S. Brandegee 1892-6-22 Lassen Honey Lake Comment
  CHSC113067  Plagiobothrys hispidulus Lowell Ahart; John Dittes 2013-7-22 18854 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
  CHSC60726  Plagiobothrys hispidulus Vernon H. Oswald; Lowell Ahart 1993-6-14 5510 Lassen Junction of Lassen A1 (Eagle Lake Rd.) with Lassen A21 (32N02), ca. 3 mi (air) W of Eagle Lake. Roadside depression. 1813 Comment
  JEPS87509  Plagiobothrys hispidulus Vernon H. Oswald and Lowell Ahart 1993-6-14 5510 Lassen ca 3 mi (air) w. Eagle Lake (junction of Lassen A1 (Eagle Creek Rd.) with Lassen A21 (32N02)) 1813 Comment
  UC1483869  Plagiobothrys leptocladus G. Schoolcraft 1980-5-7 223 Lassen n shore Honey Lake Island; n shore Honey Lake Island 1219 Comment
  HSC31353  Plagiobothrys mollis D. H. Norris, Thomas W. Nelson, S. Dowty 1971-6-22 19273 Lassen Harvey Valley near Cone Springs Comment
  UC1533150  Plagiobothrys mollis G. Schoolcraft 1986-7-28 1665 Lassen w Ash Valley (along edge of Moll Reservoir); edge Moll Reservoir 1606 Comment
  RSA495517  Plagiobothrys mollis Elaine Joyal, D. Mehlman 1988-6-27 1286 Lassen Poison Lake. 2000 Comment
  CHSC117214  Plagiobothrys stipitatus var. micranthus Lowell Ahart; John Dittes 2016-6-7 20978 Lassen Strand of the pond, about 100 yards east of Stonebreaker Road, 0.6 miles south of County Road A-2, 5.3 miles (air) east of Bieber, 7.3 miles (air) southwest of Adin, hills at the southern slope of Big Valley. 1289 Comment
  JEPS124369  Plagiobothrys stipitatus var. micranthus Lowell Ahart, John Dittes 2015-7-13 20319 Lassen Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. Comment
  UC101433  Plagiobothrys tenellus Marcus E. Jones, A. M. 1897-6-18 7141 Lassen Chat 1524 Comment
  HSC95289  Platanthera dilatata var. leucostachys Gordon Leppig, J. Cromwell 1997-7-26 602 Lassen Modoc National Forest, Blue Lake Ranch 1970 Comment
  CHSC6278  Platanthera leucostachys M. West 1946-7-7 Lassen Butte Creek. Comment
  RSA337278  Plectritis macrocera Noel Holmgren, Patricia K. Holmgren 1980-7-3 9488 Lassen Rye Patch Canyon Road, 3.4 km (2.1 mi) east of US Hwy 395, 14.5 km (9 mi) airline distance southeast of Ravendale. 1700 Comment
  SEINET10550970  Plectritis macrocera Billy Joe Cox, David B. Dunn 1971-6-2 Cox 3116 Lassen 6 miles n of hallelujah jct on us hwy 395, in artemisia tridentata, pinyon Pine, jeffery pine along high ridge and in sandy wash. 1402 Comment
  SEINET780337  Plectritis macrocera B. J. Cox, D. B. Dunn 1971-6-2 3116 Lassen Six miles N of Halleujah jct. on U.S. Hwy. 395, in Artemesia tridentata. 1402 Comment
  RSA484154  Poa J. P. Smith, J. O. Sawyer 1971-5-22 4655 Lassen 4 miles west of Susanville on State Route 44. Comment
  UCD90624  Poa bulbosa Beecher Crampton 1964-6-27 7096 Lassen ca. 8 miles southeast of Ravendale Bureau Land Management Spanish Springs--Shinn Mtns. Resource Conservation area. 1981 Comment
  RSA115224  Poa compressa Beecher Crampton 1956-7-17 3736 Lassen Ca. 2.5 miles north of Emigrant Gap. 1372 Comment
Read comments
Apr 28 2013
  UC1132870  Poa cusickii subsp. cusickii A. Simontacchi 1940-5-17 746 Lassen 5.9 mi s Patterson Mt; Lassen Nat'l Forest, Halls Flat Quadrangle Comment
  HSC95195  Poa leptocoma subsp. leptocoma Gordon Leppig, J. Cromwell 1997-7-27 629 Lassen Modoc National Forest, Blue Lake Ranch. 1970 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
  UC1142935  Poa pratensis subsp. pratensis A. L. Hormay 1941-6-23 15 Lassen Burgess Spring 1676 Comment
  JEPS127715  Poa secunda Alejandro Brambila, Michael Dolan 2016-7-25 CA 320 -170 Lassen Clarks Valley Road west off 395 right after Likely Mtn. About 1Mile before Christensen Corral Comment
  POM112877  Poa secunda Marcus E. Jones 1897-6-19 11137 Lassen Chat 1616 Comment
  SEINET175720 Image available Poa secunda Marcus E. Jones 1897-6-25 Lassen Susanville 1341 Comment
  CAS-BOT-BC247053  Poa secunda subsp. juncifolia Marcus E. Jones 1897-6-23 s.n. Lassen Amedee 1219 Comment
  JEPS70648  Poa secunda subsp. juncifolia Dr. Longbridge 1912-1 Lassen Amadee Comment
  UC1037123  Poa secunda subsp. juncifolia Leo Whitney 1935-6-23 3285 Lassen near Camp 10 Fruit Grower's Supply Company Comment
  UC1153860  Poa secunda subsp. juncifolia Beecher Crampton 1954-7-5 2048 Lassen 4.5 mi w Susanville 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
  UCD32654  Poa secunda subsp. juncifolia Beecher Crampton 1954-7-5 2048 Lassen 4.5 miles W of Susanville, along Hwy 36. 1432 Comment
  UCD92368  Poa secunda subsp. juncifolia J. B. Davy 17-24 Jun 1897 s.n. Lassen Honey Lake Valley. Comment
  HSC38602  Poa secunda subsp. secunda J. P. Smith, J. O. Sawyer 1971-5-23 4660 Lassen Along Hwy. 139, 23 miles south of junction with road to Thermo. Comment
  UC1132871  Poa secunda subsp. secunda A. Simontacchi 1940-5-28 784 Lassen 3.2 mi wsw Patterson Mt; Lassen Nat'l Forest, Halls Flat Quadrangle Comment
  UC1132879  Poa secunda subsp. secunda Robert W. Gardner 1937-6-16 G- 5 Lassen Burgess Spring Experimental Range; Halls Flat Quadrangle Comment
  UC1142953  Poa secunda subsp. secunda A. L. Hormay 1941-6-26 37 Lassen Bogard Ranger Station, Pine Creek Bogard Ranger Station; Lassen Nat'l Forest 1706 Comment
  UC70684  Poa secunda subsp. secunda J. Burtt Davy Jun 17 1897-Jun 24 1897 Lassen Honey Lake Valley Comment
  UCD91756  Poa wheeleri L. Whitney 1935-6-23 s.n. Lassen Fruit Grower's Supply Co., Camp 10. Comment
  CHSC54190  Polemonium micranthum Vernon H. Oswald 1991-5-28 4615 Lassen Wayman Barn at the west end of Hunt Rd, Ash Creek Wildlife Are, ca. 5 miles northeast of Bieber. 1264 Comment
  JEPS120846  Polemonium micranthum Lowell Ahart, John Dittes, Todd Sloat 2013-6-8 18743 Lassen About 30 yards N of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley. Comment
  SD61072  Polemonium occidentale Darley F. Howe 1964-8-2 3918 Lassen East Creek, Warner Mountains, Modoc Natl. Forest 2012 Comment
  CAS-BOT-BC74163  Polyctenium fremontii G. Schoolcraft 1998-5-19 2707 Lassen South end Mud Flat. 1341 Comment
  RSA340001  Polyctenium fremontii Gary Schoolcraft 1984-7-9 1287 Lassen South of Fillman Road, 3.8 miles west on Hwy 395 1610 Comment
  JEPS94355  Polyctenium fremontii var. fremontii Vernon H. Oswald and Lowell Ahart 1997-5-7 8405 Lassen 1.7 ni e of Highway 395 (Mud Flat along Smoke Creek Ranch Road); Mud Flat, Smoke Creek Ranch Road 1356 Comment
  POM104579  Polygonum amphibium var. stipulaceum Marcus E. Jones 1897-6-21 s.n. Lassen Chat. 1616 Comment
  CAS-BOT-BC419771  Polygonum argyrocoleon Alice Eastwood 1912-8-22 1795 Lassen Trail from Morgans Springs to Sulphur Works, Lassen Butte Region Comment
  CHSC59094  Polygonum aviculare Vernon H. Oswald; Lowell Ahart 1992-8-25 5191 Lassen Lassen Volcanic National Park. West shore of Snag Lake SW of the islands. Locally common in wet, muddy volcanic gravel on the drying strand of the lake. 1851 Comment
  CHSC112447  Polygonum aviculare subsp. depressum Lowell Ahart; John Dittes, Todd Sloat 2013-6-8 18735 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
  POM253247  Polygonum bistortoides A. A. Heller 1938-6-23 15141 Lassen 2 miles E of Westwood Comment
Read comments
Jun 1 2009
  UC1136194  Polygonum bistortoides Robert W. Gardner 1937-6-20 G- 20 Lassen Burgess Spring Halls Flat Quadrangle Comment
  UC1536794  Polygonum bistortoides Gordon H. True Jr. 1939-6-15 1036 Lassen w Grasshopper Valley; Bullard Lake Comment
  RSA518872  Polygonum davisiae Barbara J. Ertter 1988-7-25 7863 Lassen ridge of Diamond Mts, 1.5 miles E of Diamond Peak, 10 air miles due S of Susanville. 2287 Comment
  UC6681  Polygonum douglasii subsp. spergulariiforme M. S. Baker and Frank Nutting 1894-1 Lassen Comment
  RSA128554  Polygonum hydropiper Peter H. Raven 1954-9-2 8115 Lassen Bed of St. Helena Creek at Mirabel Park, 4.8 miles S of Middletown Comment
  UC1924203  Polygonum lapathifolium Debra Valov 2005-8-20 2005221 Lassen Bieber; off County A2 c. 8 km east of Hwy 299 1271 Comment
  POM104446  Polygonum persicaria Marcus E. Jones 1897-6-25 s.n. Lassen Susanville. 1341 Comment
  JEPS28647  Polygonum polygaloides subsp. confertiflorum George W. Gillett 1957-7-22 874 Lassen near s shore of Snag Lake, Lassen Volcanic National Park Snag Lake Snag Lake; Lassen Volcanic National Park, Snag Lake 1850 Comment
  UC1060646  Polygonum polygaloides subsp. kelloggii Herbert L. Mason 1957-7-5 14712 Lassen between Madeline and summit of grade; Madeline Plains 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
  JEPS88215  Polygonum sawatchense subsp. sawatchense Vernon H. Oswald and Lowell Ahart 1996-6-24 7864 Lassen 2.5 mi. s. Eagle Lake (Papoose Meadows located ca. 0.5 mi. e. of Eagle Lake Rd.(A1), on w. side of the meadow ca. 0.4 mi. s. of the cabins, Modoc Plateau); Modoc Plateau, Papoose Meadows 1633 Comment
  UC1609438  Polygonum sawatchense subsp. sawatchense Vernon H. Oswald and Lowell Ahart 1993-6-14 5518 Lassen Eagle Lake Rd (Lassen A1) 0.5 mi w Spaulding Tract Rd. (Rd. 518, 33N89) (ca 3 mi w of Eagle Lake) 1810 Comment
  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
  CHSC13799  Populus tremuloides Cathy Crittenden 1970-7-9 41 Lassen Antelope lookout. 2316 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
  CHSC113811  Porterella carnosula Lowell Ahart; John Dittes, Todd Sloat 2013-6-8 18727 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
  JEPS108444  Porterella carnosula Lisa Schultheis 1995-6-27 229 -95 Lassen W side of Rt. 395, 3.5 mi S of Madeline. 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
  SEINET10460834  Porterella carnosula Rimo Bacigalupi 1955-7-20 Bacigalupi 5408 Lassen Drying clay-loam mud at edges of pool at low spot in Long Valley, 4.4 miles south of Patterson Ranger Station, Modoc National Forest, southern end of Warner Mts. 2057 Comment
  SEINET10460844  Porterella carnosula Baker 1894-7-21 Baker s.n. Lassen Near Eagle Lake. 1524 Comment
  JEPS97315  Potamogeton amplifolius Vernon H. Oswald 1995-8-26 7218 Lassen T38N R15E Sec. 20, 6100 ft, Warner Mtns., Fresh-water Lake in Yellow Pine Forest. Blue Lake located ca. 13 mi SE of Likely 1859 Comment
  CAS-BOT-BC267149  Potamogeton foliosus Wm. Anderson 1963-5-12 s.n. Lassen Highrock (between Wendel and Nevada line) Comment
  SEINET10704662  Potamogeton natans Karen M. Meyer, Andrew Townesmith 2007-7-21 Meyer 146 Lassen Lassen National Forest. 1.3 mi. on Road 10 to Silver Lake off Road 110. 1963 Comment
  UC1099819  Potamogeton pectinatus Malcolm A. Nobs, S. Galen Smith 1949-8-20 1491 Lassen 1 mi s Doyle; Long Creek Comment
  SEINET9322243  Potamogeton perfoliatus var. richardsonii Robert Thorne, DeBuhr, Larry 1975-8-22 47200 Lassen Hwy 395 Comment
  UC1100087  Potamogeton zosteriformis Verne Grant, Irving Schneider 1947-8-24 8272 Lassen nw shore of Blue Lake (Northern Lassen County) Comment
  CAS-BOT-BC540031  Potentilla biennis Verne Grant; Irving Schneider 1947-7-30 8189 Lassen South point of west embayment, Tule Lake Comment
  UC1776675  Potentilla breweri G. Schoolcraft 1994-8-1 2390 Lassen About 2 miles W of Boot Lake 2456 Comment
  CDA26098  Potentilla glandulosa T. C. Fuller 1963-7-15 10903 Lassen Prescott Canyon, 2.5 miles north of Hayden Hill, ca. 15.5 miles south of Adin. 0 Comment
  CHSC6257  Potentilla glandulosa subsp. ashlandica A. Santos 1946-6-20 Lassen Eagle Lake. Grasshopper valley. 1624 Comment
  CHSC89722  Potentilla glandulosa subsp. glandulosa L. P. Janeway 2004-6-26 8154 Lassen High Cascade Range. About 1.3 km west-southwest of Patterson Flat, at junction of Roads 35N08 and 34N20, in Blacks Mountain Experimental Forest. 1750 Comment
  CHSC67064  Potentilla gracilis Willis Ball 1969-6-26 42 Lassen Found in Papoose Meadows. 1584 Comment
  POM34036  Potentilla gracilis var. elmeri Marcus E. Jones 1897-6-19 s.n. Lassen Chat. 1616 Comment
  CHSC12478  Potentilla gracilis var. fastigiata Carol Weld 1969-6-26 35 Lassen Papoose Meadow. 1615 Comment
  CHSC113015  Potentilla gracilis var. flabelliformis Lowell Ahart; John Dittes 2013-7-23 18899 Lassen Along a small drainage, west of the road levee, about 100 yards west of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CHSC4758  Potentilla millefolia R. Carter 1967-7-14 614 Lassen Hog Flat Reservoir, between highway 92 and shore of reservoir. Comment
  HSC25729  Potentilla millefolia D. H. Norris, S. Dowty, T. Nelson 1971-6-22 19183 Lassen Harvey Valley near Cone Springs Comment
  JEPS62498  Prunella vulgaris var. lanceolata Brown and Wieslander 1922-7-30 23 Lassen Martin Sprs Eagle Lake; , Martin Sprs Comment
  CHSC106567  Prunus andersonii K. Schierenbeck 2008-5-3 Lassen Fort Sage Mtns. 1439 Comment
  SEINET3157217  Prunus andersonii E. K. Balls 1950-5-9 15947 Lassen 6 mi S of Doyle, hwy 395 1372 Comment
  SJSU8180  Prunus andersonii M. D. Fleschner 1965-7-12 Lassen 2 mi SE of Milford near Honey L 1249 Comment
  JEPS88231  Prunus virginiana var. demissa Vernon H. Oswald and Lowell Ahart 1996-6-17 7767 Lassen 7 mi w of Susanville (Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Highway 36, on the n side of Hwy 36 0.2 mi e of the 7 Mile Post); Modoc Plateau, Bizz Johnson Trail 1432 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
  CHSC61950  Pseudognaphalium thermale Brian Murray 1992-5-31 3 Lassen 1/2 mile East of four corners on Willow Creek Rd. On the side of the road. Comment
  CAS-BOT-BC239802  Pseudoroegneria spicata John Thomas Howell 1976-7-20 52002 Lassen About 5 miles west of Fredonyer Pass near confluence of Susan River and Willard Creek 1432 Comment
  UCD91491  Pseudoroegneria spicata A. A. Beetle 1944-8-16 3018 Lassen On east side of Horse Lake. Comment
  UCD91501  Pseudoroegneria spicata Beecher Crampton 1954-7-5 2053 Lassen Along Hwy 36, 4.5 miles west of Susanville. 1432 Comment
  CHSC36103  Pseudoroegneria spicata subsp. spicata Terence Finn 1979-6-18 8 Lassen .75 mi from Hallelujah Junction, going towards well on old road. 1524 Comment
  CHSC68858  Pseudostellaria jamesiana Vernon Oswald; Lowell Ahart 1997-6-24 8619 Lassen South of Susanville on the north side of Diamond Mtn. at an impoundment on the edge of Forest Rd. 29N43, ca. 7.4 miles east of Gold Run Rd. (29N10), ca. 2.7 mi east of Lassen NF boundary. 2036 Comment
  JEPS48629  Pseudostellaria jamesiana Hilda W. Grinnell 1934-6-1 Lassen top of divide 8 mi sw Susanville 1950 Comment
  UC120048  Pseudostellaria jamesiana unknown 1892-7-2 Lassen Susanville Comment
  CHSC110907  Psilocarphus brevissimus var. brevissimus Lowell Ahart; John Dittes 2012-7-9 18290 Lassen Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. About 100 yards southeast of the tall poles. 1267 Comment
  JEPS120861  Psilocarphus brevissimus var. brevissimus Lowell Ahart, John Dittes, Todd Sloat 2013-6-8 18756 Lassen About 30 yards N of the four tall poles, Ash Creek State Wildlife Area, about 5.5 air miles NE of Bieber, Big Valley. Comment
  JEPS97412  Psilocarphus brevissimus var. brevissimus Vernon H. Oswald and L. Ahart 1995-6-19 6897 Lassen T30N R16E southeast corner Sect. 6, 4540 ft, Modoc Plateau, Sagebrush Scrub. Between Litchfield and Ravendale on Smoke Creek Ranch Rd., 4.9 mi e of Hwy. 395 1383 Comment
  CAS-BOT-BC328200  Psilocarphus elatior Marcus E. Jones 1897-6-24 s.n. Lassen 10 to 15 miles west from Amedee 1219 Comment
  CHSC60879  Psilocarphus oregonus Vernon H. Oswald; Lowell Ahart 1993-7-8 5672 Lassen Halls Flat Rd. (33N18), 1.4 mi SSW of Pittville Rd. (Lassen 111, 36N01), ca. 5.4 mi (air) NW of Poison Lake. On the W side of the road. 1694 Comment
  CHSC66377  Psilocarphus oregonus Vernon H. Oswald; Lowell Ahart 1996-6-17 7794 Lassen Modoc Plateau. Bizz Johnson Trail accessed at Devils Corral Trailhead located off of Hwy. 36 ca. 7 mi W of Susanville. Just SW of the parking area at Devils Corral Trailhead. 1420 Comment
  POM203965  Psoralidium lanceolatum J. T. Howell 1934-6-10 11860 Lassen Doyle 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
  UCD91859  Puccinellia distans Malcolm A. Nobs; S. Galen Smith 1949-7-22 1070 Lassen NE shore of Eagle Lake. Comment
  SACT002065  Puccinellia distans Malcolm Nobs, Galen Smith 1949-7-22 Lassen Growing in wet mud, on drying shore, alkaline. Northeast shore of Eagle Lake Comment
  UCD93431  Puccinellia nuttalliana P. B. Kennedy 1923-6-1 s.n. Lassen edge of Honey Lake. Comment
  CHSC12423  Purshia tridentata Anne Linda Brisk 1969-6-20 8 Lassen 5.5 mi S of ELBS on Dean's Ridge Road. 1920 Comment
  CHSC12464  Purshia tridentata Robert W. Severin 1969-6-20 6 Lassen 1 mile sse of E.L.B.S. 2/3 mile along road up to Five Points. 1630 Comment
  SEINET10542465  Purshia tridentata Billy Joe Cox, Paul Gallian 1971-6-2 Cox 2592 Lassen Ca 6 miles s of susanville at junction of us hwy 395 and cal hwy 36 to Susanville, near johnstonville. Assoc.; Purshia-artemesia 1311 Comment
  SEINET10904099  Purshia tridentata Mary Susan Taylor 1974-1 Taylor 260 Lassen Vicinity of Eagle Lake, ca. 13 mi NW of Susanville. Comment
  CAS-BOT-BC147820  Purshia tridentata var. tridentata R. F. Thorne; C. W. Tilforth 1969-9-6 39253 Lassen C. 14 miles SE of Milford along Long Valley Creek 1310 Comment
  CAS-BOT-BC147867  Purshia tridentata var. tridentata George W. Gillett 1957-9-4 1129 Lassen Near outlet of Widow Lake, ca. 50 yards from lake 2057 Comment
  HSC25758  Purshia tridentata var. tridentata D. H. Norris, Thomas W. Nelson, S. Dowty 1971-6-22 19293 Lassen Along Hwy. 395, 4 mi. E of Standish Comment
  RSA152670  Purshia tridentata var. tridentata Dorothy Wiggins 1961-6-10 16321 Lassen Along California Highway 36. ABout 6 miles W of Susanville. Comment
  JEPS28661  Pyrola asarifolia George W. Gillett 1957-7-22 880 Lassen Snag Lake, South shore near Campsite 1850 Comment
  CHSC6237  Pyrola picta P. Balch 1955-7-22 Lassen Between Eagle Lake and Pittville road. 1676 Comment
  CAS-BOT-BC362264  Pyrrocoma carthamoides var. cusickii G. S. 1984-7-11 1292 Lassen About 4 miles west of Madeline. 37-12-14 1706 Comment
  CHSC58834  Pyrrocoma hirta var. lanulosa Vernon H. Oswald; Lowell Ahart 1992-7-16 5129 Lassen Feather Lake on the S side of Bridge Creek Spring Rd. (County Rd. 112, Forest Rd. 31N06), ca. 0.4 mi E of Champs Flat Rd. (County Rd. 105, Forest Rd. 32N02), between Old Station and Susanville. On the margin of the lake. 1749 Comment
  UC35842  Pyrrocoma hirta var. lanulosa M. S. Baker and F. Nutting 1894-7-21 Lassen Eagle Lake Comment
  UC35843  Pyrrocoma hirta var. lanulosa M. S. Baker and F. Nutting 1894-7-21 Lassen Eagle Lake Comment
  UC773928  Pyrrocoma hirta var. lanulosa L. R. Short and J. Warren 1936-8-17 S- 496 Lassen Burgess Spring Experiment Range Lassen National Forest, Burgess Spring Experiment Range 1783 Comment
  JEPS109778  Pyrrocoma lucida Dean W. Taylor 2002-8-10 18309 Lassen Elysian Valley (ca. 3 air miles West of Janesville), southerly middle border of the valley 1310 Comment
  JEPS93954  Pyrrocoma racemosa var. paniculata Vernon H. Oswald 1998-9-14 9625 Lassen Windy Hollow on the w side of Highway 44 ca. 1 mi nw of its intersection with A21 to Westwood; Windy Hollow, Highway 44 1737 Comment
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Jun 3 2007
  CAS-BOT-BC379463  Ranunculus alismifolius Louella Bass 1973-4-16 18 Lassen Elysian Valley Comment
  CHSC71322  Ranunculus alismifolius var. davisii Vernon H. Oswald 1998-6-22 9230 Lassen Champs Flat Rd. (A-21) 1.8 mi north of Hwy. 44, ca. 18 air mi north of Westwood. 1749 Comment
  HSC27356  Ranunculus alismifolius var. lemmonii D. H. Norris, Thomas W. Nelson, S. Dowty 1971-6-22 19192 Lassen Harvey Valley near Cone Springs Comment
  UC584357  Ranunculus andersonii G. L. Stebbins Jr. and J. A. Jenkins 1937-7-9 2270 Lassen bare summit ridge and ridges sw Diamond Mt. (s of Susanville) Comment
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Apr 20 2009
  CHSC8743  Ranunculus aquatilis var. capillaceus S. Chulasmai 1966-5-13 35 Lassen Vernal pool, (Johnstonville). Comment
  UC1594639  Ranunculus aquatilis var. capillaceus Vernon H. Oswald and Lowell Ahart 1992-7-16 5121 Lassen w Cinder Pit (on logging road paralleling e side of creek, 1.3 mi n of Hwy 44 and McCoy Flat Reservoir, btween Old Station and Susanville); Bridge Creek 1719 Comment
  UC9368  Ranunculus aquatilis var. capillaceus M. S. Baker and Frank Nutting 1894-7-25 Lassen Eagle Lake 1524 Comment
  RSA125295  Ranunculus aquatilis var. capillaceus Peter H. Raven 1958-6-19 13256 Lassen A pond along hwy 395, 7.1 miles W of Standish. Comment
  CHSC65319  Ranunculus aquatilis var. diffusus Vernon H. Oswald; Lowell Ahart 1995-8-14 7185 Lassen Modoc Plateau. Horse Lake Rd. (Lassen 536) at the railroad crossing 1 mi W of Hwy. 395, N of Susanville. In roadside pond. 1645 Comment
  POM99370  Ranunculus californicus Marcus E. Jones 1897-6-18 s.n. Lassen Chat. [also Chats, a former settlement] 1524 Comment
  CHSC75526  Ranunculus cymbalaria var. saximontanus Vernon H. Oswald; Lowell Ahart 1999-6-9 9757 Lassen Northeast of Susanville and 4.1 mi south of Biscar Wildlife Management Area on BLM 26030 at the water crossing on Secret Creek. 1347 Comment
  UC1745660  Ranunculus cymbalaria var. saximontanus Annetta M. Carter 1945-9-30 1723 Lassen Sam Webb place near end of Eagle Lake; ; Sam Webb place near end of Eagle Lake. 1554 Comment
  RSA293370  Ranunculus cymbalaria var. saximontanus Reino Alava 1957-7-5 1135 Lassen Along Highway no. 395, 4.4 miles S of Ravendale. Comment
  HSC103655  Ranunculus flammula Thomas W. Nelson, Jane Nelson 1985-8-10 8026 Lassen Silver Lake, along north side of arm on east side of lake. 1829 Comment
  UC1776660  Ranunculus glaberrimus var. ellipticus G. Schoolcraft 1995-4-2 2464 Lassen East end of Elysian Valley W. of Janesville 1310 Comment
  UC1776661  Ranunculus glaberrimus var. ellipticus G. Schoolcraft 1995-3-1 2463 Lassen East end of Elysian Valley W. of Janesville 1310 Comment
  CHSC77228  Ranunculus glaberrimus var. glaberrimus G. Schoolcraft 1996-3-30 2517 Lassen West of Susanhills subdivision, S. of Susanville. 1432 Comment
  UC1143005  Ranunculus occidentalis August L. Hormay 1934-5-15 Lassen turnoff to Willow Spring Lassen National Forest (n of Hall's Flat) 1706 Comment
  UC118171  Ranunculus occidentalis T. S. Brandegee 1892-7-2 Lassen Susanville Comment
  UC1523766  Ranunculus occidentalis Gary Schoolcraft 1981-5-5 371 Lassen s Adin (e of Hwy 139) 1341 Comment
  UC1924564  Ranunculus occidentalis Debra Valov 2006-5-30 2006036 Lassen Bieber off County Rd A2 c. 8.7 km east of Hwy 299 1285 Comment
  CHSC108026  Ranunculus occidentalis var. occidentalis Lowell Ahart; John Dittes 2011-6-20 17479 Lassen Meadow, about 15 yards east of the stream, about 40 yards south of where the road crosses Hunsinger Draw, 1.9 miles (air) northwest of Moll Reservoir, 2.8 miles (air) west of Ash Valley, 8.4 miles (air) southeast of Adin. 1520 Comment
  CDA24351  Ranunculus sceleratus var. multifidus D. L. Haws 1974-5-3 Lassen Railroad right-of-way near Susanville. 0 Comment
  CDA3487  Ranunculus testiculatus Lee Wheeler 1963-3-29 Lassen County fairgrounds, Susanville. 0 Comment
  CHSC4991  Ranunculus uncinatus L. E. Ray 1967-6-24 28 Lassen Collected ca. 3.5 mi. se ELBS, Upper Murrer Meadow. 1524 Comment
  UC1364997  Ratibida columnifera Nick Santamaria 1969-7-21 721 Lassen on service road #33NO1 two mi n Eagle Lake Resort (w side of lake); Eagle Lake Comment
  CDA7609  Ratibida columnifera G. D. Barbe 1974-8-2 1939 Lassen At the north end of the Glenn-Eagle airstrip, southwest corner of Eagle Lake, 0.8 mile north of Eagle Lake Resort. 0 Comment
  UC1587100  Rhaponticum repens G. Schoolcraft 1991-7-31 2203 Lassen just n of Hall Spring; Shinn Mts. 1706 Comment
  CAS-BOT-BC92389  Ribes aureum var. aureum Doris K. Kildale 1930-5-12 9358 Lassen Between Susanville and Leavitt Lake. 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
  JEPS28678  Ribes cereum George W. Gillett 1957-7-26 916 Lassen e shore Butte Lake; Lassen Volcanic National Park 1844 Comment
  SEINET10482925  Ribes cereum Mary Susan Taylor 1974-5-4 Taylor 219 Lassen Between Eagle Lake Field Station and the marsh area ca. 1/4 mi N of the station, E side of Eagle Lake, N of Susanville. Comment
  UCR55663  Ribes hudsonianum var. petiolare G. R. Ballmer 1988-7-19 s.n. Lassen Blue Lake, extreme S end of Modoc National Forest, c. 3 mi (airline) south of Modoc county line 1860 Comment
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Jul 20 2010
  HSC95270  Ribes inerme var. inerme Gordon Leppig 1998-7-12 947 Lassen Modoc National Forest, Blue Lake Ranch 1970 Comment
  UC726449  Ribes nevadense A. A. Heller 1938-6-4 15145 Lassen 1 mi e Fredonyer Pass 1706 Comment
  SEINET12216573  Ribes roezlii Unknown 1972-1 286 Lassen 1 mi S of Five Points on Dean's Ridge Rd going to Dean's Meadow Comment
  CAS-BOT-BC186151  Ribes roezlii var. roezlii Brighton C. Cain 1925-8-24 96 Lassen Mt. Lassen Volcanic National Park 1 mi. below Drakesbad 1645 Comment
  CHSC80652  Ribes velutinum V. H. Oswald; B. Corbin, K. Earll, G. Schoolcraft 2001-6-2 10033 Lassen Northeast of Doyle in the Fort Sage Mtns, trailhead to top of mountain from the end of a 4WD road. 1798 Comment
  OBI76971  Rorippa columbiae Anthony Baniaga 2011-7-24 464 Lassen Lassen NAtl forest. Windy Hollow. Pine Crk Valley quad T31N R8e sec 15 NE of SE 1720 Comment
  CAS-BOT-BC74533  Rorippa curvisiliqua Al Simontacchi 1940-6-4 806 Lassen Lassen Forest. 14.8 miles west of Harvey Mountain Lookout. 1783 Comment
  CHSC36490  Rorippa nasturtium-aquaticum Theresa Costa 1982-6-4 36 Lassen Along Willow Creek in Murrers Upper Meadow. Comment
  CHSC5023  Rorippa nasturtium-aquaticum L. G. Bennett 1967-6-24 45 Lassen Murrers Meadow, near Eagle Lake. 1493 Comment
  CHSC75480  Rorippa nasturtium-aquaticum Vernon H. Oswald; Lowell Ahart 1999-6-9 9736 Lassen Northeast of Susanville on County Rd. 216 (to Karlo and Biscar Wildlife Management Area) 0.3 mi west of Hwy. 395. In marsh. 1353 Comment
  UC1536933  Rorippa nasturtium-aquaticum Gordon H. True Jr. 1936-6-26 547 Lassen e Eagle Lake (head of Willow Creek); , e of Eagle Lake 1584 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
  JEPS95871  Rorippa sinuata Vernon H. Oswald and L. Ahart 1999-6-9 9735 Lassen Hwy. 395 northeast of Susanville and north of Smoke Creek Ranch Rd. at Mud Flat: T30N R15E Sect. 3, 4425 ft elevation, dry playa surrounded by sagebrush scrub. Small part of a perennial forming a colony on the bank between the highway and the playa. 1348 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
  JEPS106500  Rosa woodsii subsp. ultramontana L. P. Janeway 2004-6-26 8171 Lassen High Cascade Range. Along Road 33N15 (Lassen Trail) between Patterson Flat and Aspen Flat; Blacks Mountain Experimental Forest 1790 Comment
  CAS-BOT-BC148257  Rosa woodsii var. ultramontana George W. Gillett 1957-7-26 915 Lassen Butte Lake - Lassen Volcanic National Park 1844 Comment
  RSA647522  Rosa woodsii var. ultramontana Marion P. Harthill 1972-6-16 803 Lassen Litchfield 1311 Comment
  CHSC66728  Rotala ramosior Vernon H. Oswald; Lowell Ahart 1996-8-1 8105 Lassen Mountain Meadows Reservoir SW of Westwood. Growing on the receding shore of the reservoir NE of Indian Ole Dam. 1539 Comment
  CAS-BOT-BC148390  Rubus leucodermis John Thomas Howell 1974-7-9 50482 Lassen Coniferous forest between Susanville and SW end of Eagle Lake 1828 Comment
  UC1746173  Rumex Annetta M. Carter 1945-9-30 1720 Lassen Sam Webb place near end of Eagle Lake. 1554 Comment
  JEPS117592  Rumex acetosella 2010-7-31 17001 Lassen About 50 yards east of the large culvert, where the road crosses Hunsinger Draw, 1.9 air miles northwest of Moll Reservoir, 2.8 air miles west of Ash Valley, 8.4 air miles southeast of Adin 1516 Comment
  SEINET10479394  Rumex acetosella Jeffrey Huber 1971-6-11 Huber 319 Lassen 3 mi E of Westwood, on CA Hwy 36; in volcanic soils (basalt), in Pinus jeffreyi. 1608 Comment
  UC6963  Rumex maritimus M. S. Baker and Frank Nutting 1894-7-25 Lassen Willow Creek Comment
  CAS-BOT-BC109328  Rumex paucifolius Geo. A. Fisher 1928-6-23 32 Lassen Halls Flat. 1615 Comment
  CHSC106224  Rumex paucifolius Arthur C. Barrett 1915-7-2 12 Lassen Laufman Ranger Station. 1463 Comment
  UC6958  Rumex paucifolius Mrs. R. M. Austin Jun 1894 Lassen Willow Creek Valley Comment
  CDA23194  Rumex salicifolius T. C. Fuller, R. C. Bechtel, R. Bradley 1981-7-9 20384 Lassen West end of the dam of Smoke Creek Reservoir. 0 Comment
  UC1101216  Rumex salicifolius var. lacustris Verne Grant and Irving Schneider 1947-7-30 8188 Lassen s point of w embayment Tule Lake Comment
  UC6952 Image available Rumex salicifolius var. lacustris M. S. Baker and Frank Nutting 1894-7-30 Lassen Silver Lake; ; Silver Lake, Lassen Co. Comment
  UC6973  Rumex salicifolius var. lacustris M. S. Baker and Frank Nutting 1894-1 Lassen Comment
  RSA0105589  Rumex triangulivalvis Lowell Ahart, John Dittes 2013-7-22 18867 Lassen 30 yards south of the man made pond, about 120 yards north of the four tall poles, Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber, Big Valley. 1267 Comment
  CAS-BOT-BC434261  Rumex triangulivalvis John Thomas Howell 1975-7-23 51404 Lassen Along Hwy. 395 between Johnstonville and Janesville 1280 Comment
  CHSC77225  Rumex venosus G. Schoolcraft 1993-6-1 2267 Lassen Along Hwy 395 about 1.5 mi n. of turnoff to Wendel. 1280 Comment
  SEINET8584738  Rumex venosus W. Harnach 2011-6-4 1247 Lassen NE slope of Turtle Mtn., Fort Sage Mtns., Honey Lake Valley, approx. 7.5 miles NE of Doyle, CA on the Fort Sage Road. 1329 Comment
  JEPS51078  Sagina saginoides Brown and Wieslander 1922-7-30 45 Lassen Eagle Lake, Martin Springs Comment
  SD61014  Sagina saginoides D. F. Howe 1964-8-1 Lassen Parsnip Creek, Warner Mts., Modoc National Forest 1829 Comment
  CHSC13691  Sagittaria cuneata Patrick Balch 1935-7-17 Lassen Willow Creek Springs. Comment
  UCD138009  Sagittaria cuneata Calvin McMillan; Malcom A. Nobs 1949-6-17 799 Lassen Grass Lake, Highway 97. Comment
  CAS-BOT-BC132739  Salix arctica E. B. Copeland 1931-8-16 s.n. Lassen Mount Lassen, on the south shore of Emerald Lake 2370 Comment
  CHSC91187  Salix exigua Lowell Ahart; John Dittes 2005-6-1 11905 Lassen On the north side of Scott Road, east side of the railroad underpass, Long Valley, about 4 3/4 miles (air) north of the intersection of Scott Road and Highway 70, 6.2 miles (air) northwest of Hallelujah Junction. 1459 Comment
  JEPS88245  Salix exigua Vernon H. Oswald and Lowell Ahart 1996-6-17 7784 Lassen n side of Hwy 36 between Bizz Johnson Trail and highway bridges spanning the Susan River (ditch along trail, trail accessed at Devils Corral Trailhead off of hwy, w of Susanville); Modoc Plateau 1432 Comment
  RSA715622  Salix exigua L. Ahart, John Dittes 2005-6-1 11905 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
  CAS-BOT-BC128172  Salix lasiandra var. lasiandra John Thomas Howell 1976-7-20 52018 Lassen Bottom flats along Willard Creek near its confluence with Susan River, about 5 miles west of Fredonyer Pass - Sierra Nevada 1432 Comment
  CAS-BOT-BC128126  Salix lasiandra var. lasiandra G. Schoolcraft 1999-5-7 2821 Lassen Susanville, along BJ Trail near 4 mi. marker. 1371 Comment
  SEINET10682438  Salix lasiolepis Karen M. Meyer, Andrew Townesmith 2007-7-19 Meyer 138 Lassen Lassen National Forest. Ca. 0.2 mi. on 29N03, off Hwy. 36 on pullout just past a dry creek. 1459 Comment
  RSA0045640  Salix lasiolepis var. lasiolepis Lowell Ahart, John Dittes 2008-6-22 15044 Lassen On the south side of the road levee, in Big Valley, about 2.4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 5.4, miles (air) northeast of Bieber. 1257 Comment
  CHSC60767  Salix lemmonii Vernon H. Oswald; Lowell Ahart 1993-6-3 5489 Lassen Bridge Creek Spring Rd. (Lassen 112, Forest 31N06), at Bridge Creek, N of Hwy 44 between Poison Lake and Susanville. 1746 Comment
  JEPS87437  Salix lemmonii Vernon H. Oswald and Lowell Ahart 1993-6-3 5489 Lassen n. of Hwy. 44 between Poison Lake and Susanville (Bridge Creek Spring Rd. (Lassen 112, Forest 31N06) at Bridge Creek, s. edge of rd.); betw Poison Lake and Susanville, Bridge Creek 1746 Comment
  POM209555  Salix lemmonii Carleton R. Ball, Emily Smith, H. P. Bracelin 1932-7-24 684 Lassen Mt. Lassen Hwy. 0.6 mile N of Sulfur Works Checking Station. Lassen Volcanic National Park. 2043 Comment
  POM209558  Salix lemmonii Carleton R. Ball, Emily Smith, H. P. Bracelin 1932-7-24 686 Lassen Mt. Lassen Hwy. 0.6 mile N of Sulfur Works Checking Station. Lassen Volcanic National Park. 2043 Comment
  CAS-BOT-BC129525  Salix melanopsis G. Schoolcraft 1999-7-6 2853 Lassen Along Susan River near Devil's Corral Trailhead 1402 Comment
  CAS-BOT-BC126174  Salix scouleriana Hans Leschke 1964-9-3 1891 Lassen Cinder Cone, Lassen Volcanic Nat. Park Comment
  UC1135074  Salix scouleriana C. W. Hanks 1934-9-27 95 Lassen w. side Long Valley (near Plumas Nat'l Forest); Sierraville Quad. Comment
  JEPS78095  Salsola tragus Gary W. Zamzow 1972-7-18 84 Lassen beside Highway 395, 3 mi n Hallelujah Junction; n of Hallelujah Junction 1371 Comment
  NY540086  Salsola tragus G. Schoolcraft 1982-9-20 917 Lassen West of Wendell 1219.2 Comment
  UC669627  Salvia aethiopis Vesta Holt 1944-6-19 Lassen roadside near Susanville 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
  CAS-BOT-BC214313  Salvia dorrii var. pilosa Ella Dales Cantelow 1941-5-22 3656 Lassen 2 1/2 mi. n. of Secret Valley C.C.C. Camp, Hy. 395, Quincy to Alturas Comment
  CHSC12422  Sambucus mexicana Anne Linda Brisk 1969-6-26 28 Lassen 7.2 mi SW of ELBS on Road 4.25. 1584 Comment
  CAS-BOT-BC238591  Sambucus nigra subsp. caerulea G. Schoolcraft 1997-8-6 2674 Lassen Diamond Mtn. 2316 Comment
  UCD137207  Sambucus nigra subsp. caerulea P. B. Schultz 1967-7-12 78 Lassen 14 miles southeast of Adin on State Highway 139. 1524 Comment
  CHSC68855  Sambucus racemosa var. microbotrys Vernon Oswald; Lowell Ahart 1997-6-24 8609 Lassen South of Susanville on the north side of Diamond Mtn. at a springy slope with streamlets along Forest Rd. 29N43, 5.4 miles east of Gold Run Rd. (29N10), 0.7 mi east of Lassen NF boundry. 1889 Comment
  RSA74137  Sanicula tuberosa M. S. Baker 1952-5-23 12426 Lassen Hwy 36 E of Chester Comment
  CAS-BOT-BC110337  Sarcobatus vermiculatus John Thomas Howell 1934-6-10 11897 Lassen Horse Lake. Comment
  CDA23525  Sarcobatus vermiculatus M. R. Pryor 1953-9-22 Lassen 0.5 mile west of Jack Crow s property, Stacey. 0 Comment
  CHSC66854  Sarcobatus vermiculatus Vernon H. Oswald 1996-9-21 8288 Lassen Modoc Plateau. Willow Creek Wildlife Area on Hwy. 139 ca. 10 mi (air) N of Susanville. Growing on the edge of the levee road along the N side of Wlillow Creek ca. 0.5 mi E of the parking area on the highway. 1490 Comment
  UC1537040  Sarcobatus vermiculatus Gordon H. True Jr. 1936-6-21 519 Lassen Honey Lake Valley 1219 Comment
  SEINET10532870  Sarcobatus vermiculatus Mary Susan Taylor 1974-7-8 Taylor 261 Lassen Ca. 1 mi N of Honey Lake, ca. 1 mi S of Standish, Honey Lake Wildlife Refuge. Comment
  JEPS59098  Sarcodes sanguinea Mary G. Clark 1918-5-24 Lassen Westwood, Lassen Co. Comment
  JEPS1765  Saxifraga nidifica var. nidifica Milo S. Baker 1952-5-23 12422 Lassen e of Chester (Hwy 36) Comment
  JEPS28664  Saxifraga odontoloma George W. Gillett 1957-7-22 6070 Lassen near campsite at s end of Snag Lake; Lassen Volcanic National Park, Snag Lake 1850 Comment
  JEPS96023  Saxifraga oregana Vernon H. Oswald and Lowell Ahart 1996-6-24 7889 Lassen 0.5 mi e of Eagle Lake Road ((A1) and 2.5 mi s of Eagle Lake, Papoose Meadows, Modoc Plateau, Montane Meadow); Papoose Meadows, Modoc Plateau, Montane Meadow 1633 Comment
  CAS-BOT-BC111302  Schoenoplectus acutus var. occidentalis R. F. Thorne; C. W. Tilforth 1969-9-6 39256 Lassen Sandy flats along Long Valley Creek c. 14 mi SE of Milford. Comment
  RSA719709  Schoenoplectus pungens Michael A. Vincent, K. Levings 2006-7-29 12919 Lassen Along Rt 395, 46.9 road miles SE of Johnstonville, 13.9 miles N of Sierra County line. Comment
  JEPS114854  Scirpus acutus var. occidentalis Lowell Ahart, John Dittes 2008-6-22 15018 Lassen On the east end of the levee, about 100 yards east of the tall poles, mountain meadow, in Big Valley, about 3.5 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 5.5 miles (air) northeast of Bieber 1260 Comment
  UC2198  Scirpus pungens J. Burtt Davy Jun 17 1897-Jun 24 1897 3286 Lassen sloughs Susan River (Honey Lake Valley); , Honey Lake Valley 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
  CHSC7755  Scrophularia californica Beverley J. Wise 1969-5-18 110 Lassen 18.2 mi. N. E. of Susanville on Las. Co. Rd. 216 off Las. Co. Rd. 215. North sidewall of Willow Creek Canyon. 1463 Comment
  SEINET13751284  Scrophularia desertorum N. H. Holmgren, P. K. Holmgren 1978-6-11 8922 Lassen Painters Flat road, 28.3 km (17.6 miles) east of Ravendale and 23.5 km (14.5 miles) airline distance. 1740 Comment
  UC1561866  Scrophularia desertorum Barbara Ertter with Gary Schoolcraft 1987-6-16 7191 Lassen ne side Honey Lake (s side of Hot Springs VABM); Skeedaddle Mts 2286 Comment
  RSA516386  Scrophularia desertorum Barbara Ertter, Gary Schoolcraft 1987-6-16 7191 Lassen Skeedaddle Mtns on NE side of Honey Lake, talus slopes at base of rimrock on S side of Hot Springs VABM 2287 Comment
  CAS-BOT-BC214188  Scutellaria John Thomas Howell 1976-7-19 51978 Lassen Gold Run Creek southwest of Susanville, Sierra Nevada 1386 Comment
  JEPS62885  Scutellaria nana L. S. Smith C. 1918 Lassen Bieber Range, nw Lassen County Bieber Range 1371 Comment
  UC1537581  Scutellaria nana Gordon H. True Jr. 1936-6-25 540 Lassen e of Harvey Valley Ranger Station (Harvey Valley); Harvey Valley 1706 Comment
  CAS-BOT-BC240084  Secale cereale Ira L. Wiggins; Dorothy B. Wiggins 1961-6-11 16342 Lassen 13.5 mi. E. of Susanville Comment
  UC831880  Senecio aronicoides A. A. Heller 1938-6-4 15143 Lassen w of Fredonyer Pass (on Highway 36) 1676 Comment
  CDA38660  Senecio eurycephalus var. lewisrosei B. Villegas 2010-6-17 PDR# 1535022 Lassen South of Adin; Hwy. 139 at Milepost 58. 0 Comment
  CHSC54176  Senecio hydrophiloides Vernon H. Oswald 1991-5-28 4628 Lassen South end of Elkins Ln (100 ft south of Modoc-Lassen county line), Ash Creek Wildlife Area, ca. 7 miles northeast of Bieber. Meadow. 1267 Comment
  UC2027206  Senecio hydrophiloides Anthony Baniaga 2011-6-21 388 Lassen Lassen National Forest. Southern McCoy Flat. Spalding Tract quandrangle Comment
  CAS-BOT-BC363686  Senecio hydrophilus A. A. Heller 1938-6-23 15192 Lassen About 4 miles east of Westwood 1432 Comment
  OBI75864  Senecio hydrophilus Anthony Baniaga 2011-9-8 511 Lassen Lassen Natl Forest. Caribou Wilderness; Long Lake, W shore peninsula. Red Cinder quad T30N R7E sec 16 SW of NW 2103 Comment
  CHSC5218  Senecio integerrimus var. exaltatus A. Santos 1946-6-13 Lassen Pine Creek, Eagle Lake. 1600 Comment
  UC1070219  Senecio integerrimus var. exaltatus K. E. Bradshaw 1939-5-27 239 Lassen Black Mountain Experimental Forest, Plot 39-1 Lassen National Forest, Halls Flat Quad. 1767 Comment
  RSA0065436  Senecio multilobatus Marion P. Harthill 1972-6-17 811 Lassen Ravendale. 1767 Comment
  JEPS100319  Senecio spartioides Dean W. Taylor 2001-7-12 17830 Lassen Diamond Mountains, headwaters of Rhodes Creek, along Forest Road 24N02X 1996 Comment
  CAS-BOT-BC364253  Senecio triangularis B. C. Cain 1925-8-24 108 Lassen 1 mi. below Drakesbad, Mt. Lassen Nat. Park 1645 Comment
  HSC90792  Senecio triangularis Barbara Ertter 1988-7-25 7870 Lassen Ridge of Diamond Mtns, ca. 1.5 mi. E of Diamond Peak, ca. 10 air mi due S of Susanville. 2256 Comment
  UC36171  Senecio triangularis M. S. Baker and Frank Nutting 1894-7-12 Lassen Pine Creek Comment
  SEINET10788334  Setaria viridis Lowell Ahart 2010-8-31 Ahart 17139 Lassen T39N, R8E, southwest 1/4 section 35. About 1/4 of a plant, on damp good soil, moisture from irrigation, on the east side of Walters Road, 4235 feet south of Modoc County line, about 4.3 miles (air) south-southwest of Adin, about 7.0 miles (air) northeast of Bieber, Big Valley. Common. 1277 Comment
  RSA768029  Sidalcea glaucescens L. Ahart, John Dittes 2010-7-31 17016 Lassen About 50 yards east of the large culvert, where the road crosses Hunsinger Draw, 1.9 air miles northwest of Moll Reservoir, 2.8 air miles west of Ash Valley, 8.4 air miles southeast of Adin 1516 Comment
  UC1587031  Sidalcea glaucescens G. Schoolcraft 1991-7-30 2198 Lassen East slope of Widow Mountain 1859 Comment
  CHSC27642  Sidalcea oregana George Deniso 1978-7-21 88 Lassen Colman L., W shore, SE of Eagle L. 1962 Comment
  UCD18967  Sidalcea oregana Raymond D. Ratliff 1965-8-6 53 Lassen Lassen National Forest, Harvey Valley Allotment (Ashurst Well). 1950 Comment
  UC619263  Sidalcea oregana subsp. oregana J. and H. W. Grinnell 1938-7-13 1099 Lassen near Ravensdale; near Ravensdale 1554 Comment
  CHSC99148  Sidalcea oregana subsp. spicata Lowell Ahart; John Dittes 2008-6-19 14890 Lassen East bank of Willow Creek, about 30 yards northeast of Highway 139, near Forest Road 36N02, about 19.6 miles east-southeast of Bieber. 1578 Comment
  HSC69610  Sidalcea oregana subsp. spicata Gary Schoolcraft 1980-7-14 Lassen In Ash Valley, NW of the road. 1537 Comment
  RSA703717  Sidalcea oregana var. maxima Arnold Tiehm, Jan Nachlinger, Margaret J. Williams 1988-6-2 11704 Lassen East side of Snowstorm Mt., 18.1 road miles north of the Wendel road on highway 395 from Susanville to Alturas 1402 Comment
  SEINET9005527  Sidalcea oregana var. spicata C. G. Gulling 1905-1 s.n. Lassen Big Meadows. Comment
  JEPS28445  Silene bernardina George W. Gillett 1957-7-24 896 Lassen dry flats between Cameron Meadow and Snag Lake (Lassen Volcanic National Park); , btw Cameron Mdw and Snag Lake 1950 Comment
  CAS-BOT-BC384310  Silene bernardina George W. Gillett 1957-7-24 896 Lassen Lassen Volcanic National Park. Flats between Cameron Meadow and Snag Lake 1950 Comment
  CHSC57274  Silene bridgesii Mary Meyer 1980-7-24 Lassen West of rocky outcrop at sharp bend in the Lookout Road. 2255 Comment
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Aug 11 2014
  CDA24107  Silene douglasii T. C. Fuller 1963-7-15 10898 Lassen Prescott Canyon, 2.5 miles north of Hayden Hill, ca. 15.5 miles south of Adin. 0 Comment
  SEINET10733247  Silene douglasii Andrew Townesmith, Karen M. Meyer 2007-7-22 Townesmith 846 Lassen Lassen National Forest, Eagle Lake Ranger District. Intersection of Forest Service road 32N09 and Forest Service route 10, 6 miles SW of state route 44. 1971 Comment
  CHSC59709  Silene menziesii Mary Meyer 1980-7-28 Lassen 2148 Comment
  SEINET8879824  Silene menziesii R. R. Halse 2006-8-3 6992 Lassen Modoc NF, along Blue Lake Road N of Blue Lake, above Parsnip Creek, ca 15 miles ESE of Likely. 1860 Comment
  CAS-BOT-BC389545  Silene nuda M. S. Taylor; B. Hammond 1982-7-8 4790 Lassen Along Scott Rd just s of bend, ca. 4 mi ne of Beckwourth Pass 1432 Comment
  CAS-BOT-BC389546  Silene nuda G. Schoolcraft 1988-7-7 1818 Lassen SE corners of Madeline Plains ca 1 mi. s. of Horne Ranch 1645 Comment
  CAS-BOT-BC389554  Silene nuda Elmer I. Applegate 1923-9-30 4035 Lassen Constantia, Honey Lake Valley Comment
  CHSC4836  Silene nuda R. Carter 1967-7-16 616 Lassen Willow Creek Valley, e of Murrer's Ranch, 1.5 mi w of highway 139 on rd to Eagle Lake, ca. 12 mi n of Susanville, on s side of rd. Comment
  CHSC89312  Silene nuda G. Douglas Barbe 1974-8-20 1936 Lassen Upper Long Valley. Hallelujah Junction, northwest corner of jct of US Hwy 395 and Hwy 70. 1524 Comment
  UC1553400  Silene nuda G. Schoolcraft 1988-7-7 1818 Lassen ca 1 mi s Horne Ranch (se corners of Madeline Plains); , s of Horne Ranch 1645 Comment
  CAS-BOT-BC389548  Silene nuda David D. Keck 1944-7-8 5446 Lassen Sierra Nevada. 2 mi. E. of Westwood, meadow leading to Mountain Meadows Reservoir 1524 Comment
  SEINET8411725  Silene nuda Elmer I. Applegate 1923-9-30 4035 Lassen Constantia, Honey Lake Valley. Comment
  JEPS107864  Sisymbrium altissimum Lowell Ahart, John Dittes 2005-6-2 11921 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
  RSA719894  Sisymbrium altissimum Michael A. Vincent, K. Levings 2006-7-29 12909 Lassen Along Rt. 36, 14.3 miles west of Susanville. Comment
  JEPS114987  Sisyrinchium bellum Lowell Ahart, John Dittes 2008-6-20 14964 Lassen About 10 yards west of where the levee road crosses Big Valley Canal, in Big Valley, about 4 miles (air) northeast of the Headquarters at Ash Creek State Wildlife Area, about 7 miles (air) northeast of Bieber 1263 Comment
  UCD138789  Sisyrinchium bellum Gerald Dickinson 1963-7-2 71 Lassen east of Willow Creek campground, south of Hayden Hill, State Highway 139. 1219 Comment
  CHSC106203  Solanum physalifolium var. nitidibaccatum Lowell Ahart; John Dittes 2010-8-31 17138 Lassen On the east side of Walters Road, 4235 feet south of Modoc County Line, about 4.3 miles (air) south-southwest of Adin, about 7.0 miles (air) northeast of Bieber, Big Valley. 1276 Comment
  CDA34234  Solanum sarrachoides L. Ahart, J. Dittes 2010-8-31 17138 Lassen On the east side of Walters Road, 4,235 feet from Modoc County Line, about 4.3 miles (air) south-southwest of Adin, about 7.0 miles (air) northeast of Bieber, Big Valley. Comment
  CDA18276  Solanum triflorum G. D. Barbe 1974-8-2 1942 Lassen Long Valley; Hallelujah Junction, northwest corner of jct of US Hwy 395 and Hwy 70. 1524 Comment
  CHSC4987  Solanum triflorum R. Clicquennoi 1967-7-1 56 Lassen 2 mi w of Murrer's Ranch turnoff, 14.9 mi w of Murrer's Ranch turnoff [sic], 14.9 mi from Susanville, highway 139. 1463 Comment
  NY820339  Solanum triflorum G. Schoolcraft 1987-9-1 1774 Lassen Along Ash Valley road in Ash Valley 1548 Comment
  RSA128298  Solanum triflorum Peter H. Raven, Otto T. Solbrig 1958-6-17 13267 Lassen Along U.S. Highway 395, 19.0 miles south of Ravendale. Comment
  HSC42458  Solanum triflorum Barbara Kelly 1977-8-9 571 Lassen 9.2 mi. E of Madeline on the dirt rd. from Adin Comment
  CHSC59081  Solidago elongata Vernon H. Oswald; Lowell Ahart 1992-8-25 5177 Lassen Lassen Volcanic National Park. Cameron Meadow between Juniper and Snag Lakes. Edge of meadow. 1950 Comment
  UC1037338  Solidago spectabilis Leo Whitney 1934-7-3 1786 Lassen Harvey Valley Springs, ca. 14 miles west of Eagle Lake, Lassen National Forest 1737 Comment
  UCD107501  Solidago spectabilis Tim Kuhn 2006-1 47 Lassen Eagle Lake Ranger District. Comment
  CAS-BOT-BC365752  Solidago spectabilis Lassen 1927 G. S. Crew 1927-7-15 82 Lassen Lassen National Forest. Feather Lake 1737 Comment
  SBBG3122  Sorbus sitchensis H. and M. Dearing 1939-6-12 3644 Lassen S of Lassen Comment
  HSC95260  Sparganium emersum Gordon Leppig, Tony LaBanca, Leonel Arguello 1997-6-29 530 Lassen Modoc National Forest, Blue Lake Ranch 1970 Comment
  HSC95262  Sparganium emersum Gordon Leppig, J. Cromwell 1997-7-27 627 Lassen Modoc National Forest, Blue Lake Ranch. 1970 Comment
  CHSC27654  Sparganium emersum subsp. emersum Jerry Snodgrass 1978-7-11 50 b Lassen Papoose Creek, SE corner of Eagle L. Meadow; in pool. 1584 Comment
  CAS-BOT-BC374760  Sphaeromeria potentilloides var. potentilloides G. Schoolcraft 1989-5-3 1865 Lassen North end of Secret Valley s. of Karlo Comment
  CDA8825  Sphaeromeria potentilloides var. potentilloides Gary Schoolcraft 2000-6-19 2905 Lassen Flat southeast of Ravendale BLM Fire Station. 0 Comment
  UC1567385  Sphaeromeria potentilloides var. potentilloides G. Schoolcraft 1989-5-3 1865 Lassen s Karlo (n end Secret Valley); n end Secret Valley 1341 Comment
  JEPS128405  Stachys rigida Catherine Bauer with Ellen Bauer Benson 2017-8-16 12 Lassen South of Highway 44, North of Butte Lake, between Butte Creek and access road into Butte Creek Campground. Santa Clara Valley, National Forest Service, National Forest Campground. 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
  NY608067  Stanleya viridiflora G. Schoolcraft 1998-7-14 2763 Lassen Along Karlo Road, 1 mile south of Biscas Reservoir Road. 1356.4 Comment
  SEINET11604939  Stanleya viridiflora L. Bass 1982-7-25 10 -82 Lassen Near Karlo, ca 12 miles N of Litchfield. 1356 Comment
  CDA24150  Stellaria longipes var. longipes Gordon Leppig, Tony LaBanca, L. Arguello 1997-6-29 537 Lassen Modoc National Forest. Blue Lake Ranch. Comment
  UC1523750  Stellaria longipes var. longipes Gary Schoolcraft 1981-6-25 484 Lassen e fork Willard Creek 1584 Comment
  HSC69069  Stephanomeria exigua Gary Schoolcraft 1979-7-3 107 Lassen Along roadside 3 mi. up from Horne Ranch 1641 Comment
  HSC83372  Stephanomeria lactucina R. W. Becking 1987-7-29 Lassen Lassen National Forest, Caribou Wilderness, Gem Lake Comment
  CAS-BOT-BC322925  Stephanomeria tenuifolia Clarence R. Quick 1964-8-5 64 -95 Lassen Cal Mt. east of Poison Lake 1767 Comment
  CHSC23485  Stephanomeria tenuifolia Wayne O. Baum 1971-7-14 71 -62 Lassen NE. slope of Gallatin Peak. 2072 Comment
  UCR244065  Stipa comata Jim Andre, G. L. Clifton 1993-6-9 19691 Lassen Foothills of Sierra Nevada Mtns., Honey Lake Valley, c. 5 mi. west of Doyle (at U.S. 395), just inside Plumas NF boundary 1631 Comment
  UCR119113  Stipa elmeri Beecher Crampton 1954-7-5 2064 Lassen Modoc Plateau, 4.5 miles west of Susanville, along state highway 36 1433 Comment
  CHSC118491  Stipa hymenoides Don Lepley 2015-6-16 Lassen Lassen National Forest. Eagle Lake Ranger District. A little north of County Road A-1 about 1/3 mile southwest of Sandy Beach cinder pits and two air miles north of Spalding marina. UTM 686984 x 4506793 1563 Comment
  HSC22318  Stipa nelsonii subsp. dorei D. E. Anderson 1969-7-5 4992 Lassen Freedonyer Pass, 15 mi. W of Susanville 1752 Comment
  UCR119159  Stipa nevadensis Beecher Crampton 1960-6-18 5729 Lassen Warner Mountains, Southern edge of mountains, 1.25 miles north of Blue Lake in vicinity of Blue Lake Ranch. 1982 Comment
  SEINET8512762  Stipa thurberiana A. Rosenblum, A. Ortega, O. Schilling, M. Gray 2015-6-24 NV 030 -1093 Lassen Costantia Allotment. Highway 395 North into California, then right on paved entrance road before Red Rock Road and red rock formation, follow road right (South), then left (East) at top of first hill, go in roughly 0.5 miles, population is along roadside 1461 Comment
  UCR17287  Stipa thurberiana Frank C. Vasek 1975-7-11 750711- 37 Lassen Modoc National Forest, Hayden Hill Road c. 0.75-1.0 mi SW of Calif. Hwy 139 1829 Comment
  SEINET10448890  Streptanthus cordatus Paul Gallian, David B. Dunn 1971-6-2 Gallian 470 Lassen 6 mi. N. Of hallelujah jct. On us 395, in artemesia tridentata, pinyon pine, jeffrey pine along high ridge and 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
  UC768789  Suaeda calceoliformis R. F. Hoover 1940-9-29 4641 Lassen Litchfield Comment
  CHSC64784  Suaeda moquinii Vernon H. Oswald 1995-6-7 6835 Lassen Modoc Plateau. Wendel Rd. (Lassen 320) near milepost 10.5, 4.9 mi e of Wendel, ne of Susanville. Flat near the railroad. 1231 Comment
  JEPS120473  Suaeda nigra L. P. Janeway, B. Castro 2012-7-2 10925 Lassen Modoc Plateau. Honey Lake Valley, northeast side of Honey Lake, 0.6 km west of Wendel Road, 4.8 air km southeast of Wendel. Comment
  CHSC76098  Suaeda occidentalis Lowell Ahart; Vernon H. Oswald 1999-9-13 8211 A Lassen In a field, about 150 yards southwest of the parking area, about 1 mile south of the sign in station, Honey Lake Wildlife Area, 5 1/2 miles (air) southeast of Standish. 1207 Comment
  CHSC63602  Subularia aquatica var. americana Vernon H. Oswald; John Ost, Mary Lou Mini 1994-8-6 6447 Lassen Caribou Wilderness along the west loop of the trail from the Hay Meadow to Long Lake. On the margin of a pond. 2065 Comment
  JEPS117485  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
  JEPS13650  Symphoricarpos mollis Mrs. R. M. Austin 1879-1