Aster brachyactis S.F.Blake
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Species Description - Taprooted annual 1–7 dm, glabrous except for the coarsely and remotely ciliolate margins of the lvs and sometimes also the invol bracts; lvs linear or nearly so, 3–12 cm × 1–9 mm, 13–30 times as long as wide, the lower soon deciduous; heads several or many in an open-paniculiform to spiciform infl; invol 5–11 mm, its bracts loose, linear, acute or acuminate, herbaceous (especially the outer), equal or slightly imbricate, or the outer occasionally longer than the inner; pistillate fls more numerous than the disk-fls, with tubular eligulate cor much shorter than the style; achenes appressed-hairy; pappus soft and copious; 2n=14. Waste places, especially where moist and saline; sparingly intr. across the n. part of our range; native in w. U.S. and Can., and apparently Siberia. (Brachyactis angusta)
western annual aster