Aster macrophyllus L.
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Authority
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
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Family
Asteraceae
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Scientific Name
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Description
Species Description - Rhizomatous and colonial, 2–12 dm, with abundant clusters of basal lvs on short sterile shoots, glandular at least in the infl, otherwise glabrous or rough-hairy; lvs thick and firm, crenate or serrate with usually mucronulate teeth, the basal and lower cauline ones cordate, 4–30 × 3–20 cm, commonly short-acuminate to obtuse, long-petiolate, the middle and upper gradually or abruptly reduced, becoming sessile and ovate to lanceolate or elliptic; infl corymbiform, its bracts few and broad; invol 7–11 mm, generally glandular, sometimes also short-hairy, its bracts firm, well imbricate, appressed, rounded to sharply acute, the green tip sometimes obscure, the outer 1–2.5 mm wide and not over 2.5 times as long as wide; rays 9–20, 7–15 mm, ± tinged with lilac or purple; 2n=72. Woods; N.S., N.B. and Que. to Wis. and Minn. and se. Man., s. to Pa. and Ky., and in the mts. to Ga. (A. ianthinus; A. multiformis; A. nobilis; A. roscidus; A. violaris)
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Common Names
big-leaved aster