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Montana Field Guide

Montana Field Guides

Bitter Fleabane - Erigeron acris
Other Names:  Trimorpha acris, Erigeron kamtschaticus, Erigeron nivalis


Global Rank: G5
State Rank: S5

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value: 5

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General Description
Short-lived, tap- or fibrous-rooted perennial. Stems ascending to erect, 5–60 cm. Herbage sparsely hirsute; stipitate-glandular. Leaves basal and cauline; blades oblanceolate, 2–10 cm long, entire, narrower and sessile above. Heads 1 to 30, radiate. Involucres hemispheric, 4–8 mm high; phyllaries in 2 to 3 series, glandular, hirsute, sometimes purple. Rays white to pink, 40 to 50; ligules erect, filiform, 3–5 mm long. Disk corollas 4–5 mm long. Achenes ca. 2 mm long (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Our plants are variety debilis A. Gray and kamtschaticus (DC.) Herder

Range Comments
Circumboreal south to CA, CO, MN and ME (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Habitat
Stony soil of open forest, cliffs, streambanks, trails; valleys to alpine (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

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