Hypericum ascyron subsp. pyramidatum (Aiton) N. Robson (redirected from: Hypericum pyramidatum)
Family: Hypericaceae
Great St. John's-Wort
[Hypericum pyramidatum Aiton]
Hypericum ascyron subsp. pyramidatum image
From Flora of Indiana (1940) by Charles C. Deam
Moist alluvial banks of streams. All of our specimens were growing in dense shade. Rare.


Indiana Coefficient of Conservatism: C = 10

Wetland Indicator Status: FAC

Branched perennial herb 7-15 dm; lvs lanceolate to elliptic, 4-10 cm, acute or obtuse, sessile and sometimes clasping; fls few, chiefly solitary at the ends of the branches, 4-6 cm wide; stamens very numerous, united at base into 5 sets; styles 5, united below but not persistent; stigmas capitate; fr ovoid, 15-30 mm, 5-locular. Moist soil; Que. to Minn., s. to Pa., Ind., and Kans. June-Aug. (H. ascyron, misapplied)

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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