Roadless Areas
Home/Species/ Smooth Fleabane

Erigeron leiomerus

Gray

Smooth Fleabane

G4Apparently Secure Found in 7 roadless areas NatureServe Explorer →
G4Apparently SecureGlobal Rank
Identity
Unique IDELEMENT_GLOBAL.2.143772
Element CodePDAST3M290
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderAsterales
FamilyAsteraceae
GenusErigeron
Other Common Names
Rockslide Yellow Fleabane (EN) rockslide yellow fleabane (EN)
Concept Reference
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Conservation Status
Review Date1988-02-24
Change Date1988-02-24
Range Extent Comments
Central ID and adjacent MT, south to UT, CO, and NM. Peripheral.
Ecology & Habitat

Description

Smooth Fleabane is an herbaceous perennial. Its unbranched, lax stems reach up to 15 cm high and arise from a branched rootcrown that surmounts a taproot. The basal leaves are up to 7 cm long and have a petiole and a narrowly elliptic to lance-shaped blade; those of the upper stem are smaller and narrower. Foliage is glabrous to sparsely hairy. A single flower head is borne at the top of each stem. Heads have a single series of narrowly lance-shaped, glandular involucral bracts that are 4-6 mm long. There are 15-60 white to blue rays, 6-11 mm long, and numerous yellow disk flowers, ca. 3-4 mm long. The achenes have 15-25 fine, long bristles and a few short ones, forming a pappus on top.

Diagnostic Characteristics

There are many species of ERIGERON in our area; a hand lens and technical manual are needed for positive identification. E. OCHROLEUCUS has linear leaves that are usually hairy, and E. TWEEDYI has hairy foliage.
Other Nations (1)
United StatesNNR
ProvinceRankNative
NevadaS3Yes
WyomingS4Yes
MontanaS2Yes
IdahoSNRYes
ColoradoS4Yes
New MexicoSNRYes
UtahSNRYes
Plant Characteristics
Economic Value (Genus)No
Roadless Areas (7)
Nevada (1)
AreaForestAcres
South SchellHumboldt-Toiyabe National Forest125,614
Utah (4)
AreaForestAcres
418026Uinta National Forest14,038
418027Uinta National Forest13,884
418028Uinta National Forest34,002
418029Uinta National Forest15,673
Wyoming (2)
AreaForestAcres
Pacific Creek - Blackrock CreekBridger-Teton National Forest24,658
Spread Creek - Gros Ventre RiverBridger-Teton National Forest166,097
References (3)
  1. Flora of North America Editorial Committee (FNA). 2006b. Flora of North America north of Mexico. Vol. 20. Magnoliophyta: Asteridae, part 7: Asteraceae, part 2. Oxford Univ. Press, New York. xxii + 666 pp.
  2. Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
  3. Lesica, P. 1991c. Noteworthy collections in Montana. Madrono 38:297-301.