Thick-stem Aster - Eurybia integrifolia
Other Names:
Aster integrifolius
Native Species
Global Rank:
G5
State Rank:
S4S5
C-value:
5
Agency Status
USFWS:
USFS:
BLM:
External Links
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 et al. 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).
POLLINATORS The following animal species have been reported as pollinators of this plant species or its genus where their geographic ranges overlap:
Bombus vagans,
Bombus ternarius, and
Bombus terricola (Colla and Dumesh 2010).