Heuchera villosa var. villosa |
Heuchera villosa |
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hairy alumroot |
hairy alum-root, maple-leaf alum-root |
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Habit | Herbs caulescent; caudex branched. | |||||
Flowering stems | 10–85 cm, long stipitate-glandular. |
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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. |
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Inflorescences | dense to diffuse, 21–85 × 2–14 cm, internodes in floral branchlets 0.7–3 mm. |
dense to diffuse. |
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Pedicels | 0.9–3 mm. |
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Flowers | hypanthium obconic or subglobose, long stipitate-glandular; petals tightly coiled, linear or narrowly lanceolate, 0.1–0.2 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. |
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Capsules | ovoid, 3–6.4 mm, beaks divergent, not papillose. |
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Seeds | dark brown, fusiform, 0.5–0.9 mm. |
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2n | = 14. |
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Heuchera villosa var. villosa |
Heuchera villosa |
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Phenology | Flowering Jun–Sep. | |||||
Habitat | Shaded rocks and ledges, granite, gneiss, or acidic humus over limestone or shallow rocky soil | |||||
Elevation | 100-2000 m (300-6600 ft) | |||||
Distribution |
AL; GA; IN; KY; MO; MS; NC; OH; PA; SC; TN; VA; WV |
AL; AR; GA; IN; KY; MO; MS; NC; OH; PA; SC; TN; VA; WV
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Discussion | Variety villosa is found east of the Prairies in the southern Appalachian Mountains and Interior Plateau of Indiana, Kentucky, Ohio, and Tennessee. In the high mountains of North Carolina and Tennessee, the leaf lobes tend to be very sharp and narrowly triangular, and in the Interior Plateau the lobes tend to be rounded; considerable variation in lobe shape occurs throughout the range. (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.) |
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Key |
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Source | FNA vol. 8, p. 89. | FNA vol. 8, p. 89. | ||||
Parent taxa | ||||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | H. macrorhiza, H. villosa var. intermedia, H. villosa var. macrorhiza | |||||
Name authority | unknown | Michaux: Fl. Bor.-Amer. 1: 172. 1803 , | ||||
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