Wild Flowers of Pittsburgh

Appendaged Waterleaf (Hydrophyllum appendiculatum)

A somewhat uncommon plant in wstern Pennsylvania, but abundant here at the side of a wooded street in Beechview, where it was blooming in mid-May. To judge by the way it grew here, it likes moist soil at the edge of the woods. The family resemblance to the more common Virginia Waterleaf is obvious, but the flowers of Appendaged Waterleaf are a middle blue or blue-violet color, and the leaves are maple-shaped.

Gray describes the genus and the species:

HYDROPHYLLUM [Tourn.] L. WATERLEAF
Calyx 5-parted, sometimes with a small appendage in each sinus, early open in the bud. Corolla bell-shaped, 5-cleft; the lobes convolute in the bud: the tube furnished with 5 longitudinal linear appendages opposite the lobes, forming a nectariferous groove. Stamens and style mostly exserted; lilainents more or less bearded. Ovary bristly hairy (as is usual in the family); the placentae soon free from the walls except at the top and bottom. Capsule ripening 1-4 seeds, spherical.—Perennials, with petioled ample leaves, and wvhite or bluish-purple cymose-clustered flowers. (Name formed of hydor, water, and phyllon, leaf; of no obvious application.)

H. appendiculatum Michx. Hairy; stem-leaves palmately 5-lobed, rounded, the lobes toothed and pointed, the lowest pinnately divided; cymes rather loosely flowered; filiform pedicels and calyx bristly-hairy. Damp woods, N. Y. and Ont. to Minn., and southw. May, June.

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One response

  1. Pingback: Virginia Waterleaf (Hydrophyllum virginianum) « Blog Archive « Flora Pittsburghensis

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