Heuchera villosa var. arkansana
Heuchera villosa
Arkansas alum-root
hairy alum-root, maple-leaf alum-root
10–85 cm, long stipitate-glandular.
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.
dense, 10–35(–62) × 1–3(–4) cm, internodes in floral branchlets 0.3–1 mm.
dense to diffuse.
0.2–0.9 mm.
hypanthium subglobose, glabrous or sparsely long stipitate-glandular;
petals reflexed or tightly coiled, narrowly oblanceolate, 0.2–0.4 mm wide.
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.
ovoid, 3–6.4 mm, beaks divergent, not papillose.
dark brown, fusiform, 0.5–0.9 mm.
= 14.
Heuchera villosa var. arkansana
Heuchera villosa
Variety arkansana is found in the Ozark Mountains.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Varieties 2 (2 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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. | var. villosa |
1. 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. | var. arkansana |
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