Monographs Details: Triadenum fraseri (Spach) Gleason
Authority: Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Description:Species Description - Much like no. 1 [Triadenum virginicum (L.) Raf.]; sep elliptic or oblong, obtuse or rounded, 3–5 mm; pet 5–8 mm; fr ovoid or cylindric, 7–12 mm, rather abruptly narrowed to the 0.5–1.5 mm styles. Bogs, marshes, and wet shores; Nf. and Que. to Minn., s. to Conn., N.Y., O., n. Ind., and Neb., and in the mts. to W.Va. July, Aug. (Hypericum f.)