Basal lvs linear, to 4 dm נ2 cm, obtuse or abruptly acute; cauline lvs much reduced or bract-like; stem 3-10 dm; raceme at first conic, becoming cylindric, 3-12 נ2-3 cm; fls 1 cm wide; 2n=32. Open woods; s. N.Y., Pa., W.Va., Ky., Mo., and Okla., s. to Fla. and Ark. June, July. (Chrosperma m.)
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.