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Montana Field Guide

Montana Field Guides

Threadleaf Fleabane - Erigeron filifolius


Global Rank: G5
State Rank: S3S4

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value:

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General Description
Taprooted perennial with a usually branched caudex. Stems erect, 7–30 cm. Herbage strigose; stems canescent at the base. Leaves basal and cauline, filiform to linear, 1–4 cm long. Heads 1 to 10, radiate. Involucres hemispheric, 2–5 mm high; phyllaries in 3 to 4 series, sparsely villous, minutely glandular. Rays light blue to white; ligules 7–11 mm long. Disk corollas 2–4 mm long. Achenes ca. 1.5 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


Range Comments
BC, MT south to CA, NV and UT (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Summary of Observations Submitted for Montana
Number of Observations: 13

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Relative Density

Recency

 

(Observations spanning multiple months or years are excluded from time charts)



Habitat

References
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Citation for data on this website:
Threadleaf Fleabane — Erigeron filifolius.  Montana Field Guide.  .  Retrieved on , from