Perennial by short offsets; stem 4-10 dm, erect, simple or branched above, often somewhat hairy below; lvs linear, to 5 cm, 2-5 mm wide; racemes slender, few-fld, 1-3 dm; pedicels ascending or erect, scabrous, 3-10 mm, about equaling the narrowly linear bracts, bibracteolate at base; sep narrowly lance-linear, erect, 3-4 mm; auricles wanting; cor blue, 1 cm, the lower lip bearded; hypanthium ±elliptic or oblong in fr, 4-7 נ2.5-4 mm; 2n=14. Swamps on the coastal plain; N.J. to Ga.; also in Tenn. and w. N.C. Aug., Sept.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.