Perennial from a slender root; stems spreading or decumbent, 1-4 dm; stipules ±reduced or wanting; racemes erect, open, few-fld. Dry, open woods and sandy soil; se. Va. to Fla., La., and tropical Amer. Summer. Our plants are var. vulgaris Windler, with ±spreading pubescence and relatively broad lvs mostly 2-3 times as long as wide. (C. angulata, probably misapplied)

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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