Slender, taprooted perennial to 5 dm, erect and often branched near the base, copiously leafy to the base of the infl; basal lvs mostly 2.5-5 נ0.5-1.5 cm, obovate to oblanceolate, short-petiolate, entire or merely sinuate-toothed to sometimes pinnatifid; cauline lvs smaller, oblanceolate to linear, often erect and appressed; racemes with to 50 fls, elongating to 0.5-1 dm at maturity; pet 4-7 mm; ovules 2 per locule; mature pedicels straight, widely spreading or horizontal, 7-15 mm; frs subglobose, 2-3 mm, at first loosely stellate, in age glabrate; septum wrinkled, much larger than the replum; style 2-3.5 mm; 2n=14. Calcareous rocks and barrens; c. Tenn., nc. Ky., and s. Ind. Apr.-May.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.