Coefficient of Conservatism:
Coefficient of Wetness:
A. A. Reznicek
Aster longifolius of Michigan Flora.
Moist open sandy, gravelly, or rocky ground, including shores, limestone alvars, seasonally wet glades and swales as on outwash plains with jack pine; calcareous river banks, rock shores of Lake Superior.
This northern species, ranging west only to Wisconsin, has not been widely (or accurately) recognized. The leaves are indeed long, usually overtopping most or all of the inflorescence. Some plants with the long, narrow, clasping leaves and conspicuous blue rays of this species have the phyllaries ± imbricate, the outer ones distinctly shorter than the inner, rather than subequal. These may represent hybrids.