Heuchera hirsutissima |
Heuchera villosa |
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shaggyhair alum-root |
hairy alum-root, maple-leaf alum-root |
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Habit | Herbs acaulescent; caudex branched. | Herbs caulescent; caudex branched. | ||||
Flowering stems | 10–40 cm, short stipitate-glandular and sparsely long stipitate-glandular. |
10–85 cm, long stipitate-glandular. |
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Leaves | petiole long stipitate-glandular; blade orbiculate to reniform, shallowly 5-lobed, 1–1.5 cm, base cordate, lobes rounded, margins dentate, apex obtuse, surfaces 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. |
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Inflorescences | dense to diffuse. |
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Flowers | hypanthium strongly bilaterally symmetric, free 0.8 mm on abaxial side, 1.8 mm on adaxial side, pink, narrowly cylindric, 5–6.5 mm, short stipitate-glandular proximally, densely long stipitate-glandular distally; sepals spreading, green- and red-tipped, unequal, 0.5–1.5 mm on abaxial side of hypanthium, to 0.5 mm on adaxial side, apex rounded; petals spreading, white, oblanceolate, (clawed), unlobed, 2–2.5 mm (equaling or longer than sepals, rarely shorter), margins entire; stamens exserted to 0.5 mm; styles included to 0.5 mm, 1.5 mm, 0.1+ mm diam. |
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 mm, beaks divergent, not papillose. |
ovoid, 3–6.4 mm, beaks divergent, not papillose. |
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Seeds | dark brown, ellipsoid, ca. 0.7 mm. |
dark brown, fusiform, 0.5–0.9 mm. |
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Inflorescenses | dense. |
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2n | = 14. |
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Heuchera hirsutissima |
Heuchera villosa |
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Phenology | Flowering Jul–Aug. | |||||
Habitat | Fir and subalpine forest | |||||
Elevation | 2100-3500 m (6900-11500 ft) | |||||
Distribution |
CA
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AL; AR; GA; IN; KY; MO; MS; NC; OH; PA; SC; TN; VA; WV
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Discussion | Of conservation concern. Heuchera hirsutissima is known from Mount San Jacinto and the San Jacinto Mountains of Riverside County and possibly the San Bernardino Mountains of San Bernardino County. It resembles H. caespitosa and H. elegans, except for its densely villous hypanthium and minute adaxial sepals. (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. 99. | FNA vol. 8, p. 89. | ||||
Parent taxa | Saxifragaceae > Heuchera | Saxifragaceae > Heuchera | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Name authority | Rosendahl: Minnesota Stud. Pl. Sci. 2: 110. (1936) | Michaux: Fl. Bor.-Amer. 1: 172. 1803 , | ||||
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