Aromatic Aster - Symphyotrichum oblongifolium
Other Names:
Aster oblongifolius
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Native Species Global Rank :
G5
State Rank :
S4
C-value :
Agency Status USFWS :
USFS :
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Perennial from rhizomes or a branched caudex. Stems ascending, 10–30 cm, often with short, sterile branches with small leaves. Herbage hispid and glandular above. Leaves cauline, oblanceolate, sessile, clasping above, entire, 1–4 cm long, the lowest deciduous. Inflorescence open, paniculate with heads at tips of small-leaved branches; peduncles glandular. Involucre campanulate, 5–7 mm high; phyllaries imbricate, oblanceolate, acuminate, crystaline-glandular, white below, green above, scarious-margined. Rays 25 to 35, violet; ligules 6–8 mm long. Disk flowers 30 to 40, yellow becoming purple; corollas 4–5 mm long. Achenes obovoid, 2–3 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 bifarius ,
Bombus borealis ,
Bombus centralis ,
Bombus fervidus ,
Bombus flavifrons ,
Bombus huntii ,
Bombus mixtus ,
Bombus rufocinctus ,
Bombus sylvicola ,
Bombus ternarius ,
Bombus terricola ,
Bombus sitkensis ,
Bombus pensylvanicus ,
Bombus griseocollis ,
Bombus impatiens ,
Bombus insularis ,
Bombus suckleyi ,
Bombus bohemicus , and
Bombus kirbiellus (Plath 1934, Heinrich 1976, Thorp et al. 1983, Colla and Dumesh 2010, Colla et al. 2011, Koch et al. 2012, Williams et al. 2014, Tripoldi and Szalanski 2015).
