Hypericum boreale (Britton) E.P.Bicknell
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Authority
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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Family
Clusiaceae
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Scientific Name
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Description
Species Description - Perennial from slender rhizomes, 1–4 dm, much- branched above; lvs sessile, elliptic, oblong, or oval, obtuse or rounded at both ends 3–5-nerved, the larger ones 1–2 cm, half or a third as wide; bracts like the cauline lvs but smaller; sep blunt, evidently shorter than the ellipsoid fr, this 3–5 mm, deep purple, unilocular; pet 2.5–3 mm; stamens 8–15; styles 3(4), under 1 mm; seeds 0.6–0.75 mm; 2n=16. Wet, sandy or mucky soil; Nf. and Que. to w. Ont., s. to Va., O., Ind., and n. Ill. July–Sept.