Petioles 3-7 cm, glabrous or sparsely glandular-hairy; lf-blades narrowly obovate to elongate-spatulate, 15-35 נ3-4 mm; stipules 5 mm, adnate, fimbriate along the upper half; scape glabrous, 6-25 cm, with 1-9 fls 6-7 mm wide; sep minutely glandular-denticulate, 5-6 mm; pet white, spatulate, 6 mm; seeds black, sigmoid-fusiform, 1-1.5 mm, longitudinally striate-areolate; 2n=40. Peaty and boggy places; circumboreal, s. in Amer. to Que., n. Me., Bruce Co., Ont., n. Minn., n. Mich., n. Wis., and Calif. June-Aug. (D. longifolia, in part) Perhaps originally an amphiploid of nos. 2 [Drosera rotundifolia L.] and 4 [Drosera linearis Goldie].

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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