Clitoria mariana L.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Species Description - Perennial, glabrous, twining herb to 1 m; stipules lance-ovate, striate, 2–4 mm; stipellules and bracteoles similar but smaller; lfls 3, ovate, ovate-oblong, or oblong-lanceolate, 3–6 cm, obtuse; peduncle shorter than the petiole of the subtending lf, bearing ordinarily 1 or 2 pale blue or pink-lavender fls 4–6 cm, each fl closely subtended by a pair of bracteoles; cal-tube 10–14 mm, exceeding the triangular-ovate teeth; fr 3–6 cm, tipped by the persistent style. Dry upland woods and barrens; L.I. and N.J. to s. O., s. Ind., Mo., and Okla., s. to Fla. and Tex. June, July. (Martiusia m.)