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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