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FNA | Family List | FNA Vol. 8 | Saxifragaceae | Heuchera

2. Heuchera villosa Michaux, Fl. Bor.-Amer. 1: 172. 1803.

Hairy or maple-leaved alum-root Hairy or maple-leaved alum-root

Herbs caulescent; caudex branched. Flowering stems 10-85 cm, long stipitate-glandular. Leaves: petiole long stipitate-glandular; blade rounded-cordate, orbiculate, or oblong, often ± polygonal, deeply (5-)7-9+-lobed, 3-26 cm, base cordate to nearly truncate, lobes ovate to triangular, margins dentate to serrate, apex obtuse to acute, surfaces glabrous or long stipitate-glandular. Inflorescences dense to diffuse. Flowers: hypanthium radially symmetric, free 0.2-0.5 mm, white or pink, obconic or subglobose, 1.5-3.6 mm, usually long stipitate-glandular, sometimes sparsely long-stipitate or glabrous; sepals erect, green-tipped, equal, 0.5-1.7 mm, apex rounded; petals often coiled, sometimes reflexed, white, linear, lanceolate, or oblanceolate, unlobed, 1-3 mm, margins entire; stamens exserted 2-2.5 mm; styles exserted 1.5-2.5 mm, 2-4 mm, to 0.1 mm diam. Capsules ovoid, 3-6.4 mm, beaks divergent, not papillose. Seeds dark brown, fusiform, 0.5-0.9 mm.

Varieties 2 (2 in the flora): c, e United States.


1 Inflorescences dense to diffuse, internodes in floral branchlets 0.7-3 mm; pedicels 0.9-3 mm; hypanthia obconic or subglobose, long stipitate-glandular; petals 0.1-0.2 mm wide; e of the Prairies.   2a Heuchera villosa var. villosa
+ Inflorescences dense, internodes in floral branchlets 0.3-1 mm; pedicels 0.2-0.9 mm; hypanthia subglobose, glabrous or sparsely long stipitate-glandular; petals 0.2-0.4 mm wide; Arkansas.   2b Heuchera villosa var. arkansana

Lower Taxa


 

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