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Montana Field Guide

Montana Field Guides

Thick-stem Aster - Eurybia integrifolia
Other Names:  Aster integrifolius


Global Rank: G5
State Rank: S4S5

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

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General Description
Perennial from a caudex or short rhizome. Stems sometimes clustered, ascending to erect, 15–60 cm. Herbage: leaves ciliate to pubescent; stems glandular-puberulent. Leaves basal and cauline, petiolate; blades lanceolate to ovate, entire, 2–15 cm long, reduced and sessile upwards. Inflorescence usually narrow, racemose to corymbiform with few to several heads; peduncles stipitate glandular. Involucre campanulate, 7–12 mm high; phyllaries oblanceolate to linear-lanceolate, glandular, ciliate, purple-tipped, white below. Rays 8 to 27; ligules 8–12 mm long. Disk flowers 20 to 50; corolla 6–8 mm long. Achenes fusiform, 4–5 mm long, pubescent (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Species Range
Present
 


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

Summary of Observations Submitted for Montana
Number of Observations: 3

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Relative Density

Recency

 

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



Habitat
Grasslands, dry meadows, sagebrush steppe, talus; montane, subalpine (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Thick-stem Aster — Eurybia integrifolia.  Montana Field Guide.  .  Retrieved on , from