Stem 1-8 cm, with lvs in a rosette or also at intervals for several cm; petioles 2-5 cm, glabrous; lf-blades oblong-spatulate to obovate, 8-20 cm נ4-5 mm, with long glandular hairs on the upper side; stipules adnate for 1 mm, then breaking into several setaceous segments 2-5 mm; sep 3-4 mm; pet 4-5 mm, white; seeds reddish-brown, oblong, 0.7-1 mm, blunt at the ends, densely and irregularly covered with long papillae; 2n=20. In wet places and shallow water; interruptedly circumboreal, in Amer. from Nf. to Fla., w. to Minn., Ill., Tenn., and Tex. July, Aug. (D. longifolia, in part) Hybridizes with no. 2 [Drosera rotundifolia L.].
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.