Monographs Details: Hypericum frondosum Michx.
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 - Branching shrub 5–10 dm; lvs articulate at the base, narrowly oblong to elliptic or lance-ovate, 3–6 × 1–1.5 cm; fls solitary or 3 at the ends of the branches, subsessile, or rarely 1 or 2 in the upper axils; sep foliaceous, broadly elliptic or ovate, the larger 10–15 mm; pet 10–20 mm; styles mostly 3; fr ovoid conic, 10–13 mm, thick-walled, the placentas intruded but not meeting. Cedar glades, river-bluffs, cliffs, and rocky hills; Tenn. and Ky. to s. Ind., s. Ga., and e. Tex., and occasionally escaped elsewhere. Late May–July. (H. aureum)