Heuchera hirsutissima |
Heuchera micrantha |
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shaggyhair alum-root |
alum root, crevice alum-root, small-flower alumroot |
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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. |
6–57 cm, short to long stipitate-glandular or glabrous, viscid. |
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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 glabrous or sparsely to densely short to long stipitate-glandular; blade orbiculate to polygonal, shallowly to deeply 5–7(–9)-lobed, 2.5–10 cm, base cordate, lobes rounded, margins dentate, apex rounded or obtuse, surfaces glabrous or short to long stipitate-glandular, viscid. |
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Inflorescences | 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 to 1.5 mm, greenish white, often tinged with red, obconic to hemispheric, broadly turbinate, or campanulate, 1–4.9 mm, long stipitate-glandular, sometimes short stipitate-glandular proximally; sepals spreading to nearly erect, green- or red-tipped, equal, 0.5–1.8 mm, apex rounded to acute or mucronate; petals often coiled, white or pale pink, oblanceolate, (narrowly clawed), unlobed, 1.6–3.3 mm (2–3 times as long as sepals), margins entire; stamens exserted to 3 mm; styles exserted to 2.5 mm, 0.2–4.2 mm, to 0.1 mm diam. |
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Capsules | ovoid, 3 mm, beaks divergent, not papillose. |
ovoid, 3–8.5 mm, beaks divergent, not papillose. |
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Seeds | dark brown, ellipsoid, ca. 0.7 mm. |
black, broadly ellipsoid, (not curved), 0.5–0.8 mm. |
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Inflorescenses | dense. |
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2n | = 14. |
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Heuchera hirsutissima |
Heuchera micrantha |
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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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CA; ID; OR; WA; BC
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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 5 (5 in the flora). The Skagit Indians rubbed pounded plants of Heuchera micrantha on hair to make it grow and applied it to cuts. The Thompson Indians used a mashed poultice of this root mixed with Douglas fir pitch for wounds. Chewed leaves and roots were spat on sores or wounds. Infusions of roots were taken for liver trouble and sore throat. Small, peeled, cleaned root pieces were chewed for mouth sores and gum boils (D. E. Moerman 1998). (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. 91. | ||||||||||||||||
Parent taxa | Saxifragaceae > Heuchera | Saxifragaceae > Heuchera | ||||||||||||||||
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Subordinate taxa | ||||||||||||||||||
Name authority | Rosendahl: Minnesota Stud. Pl. Sci. 2: 110. (1936) | Douglas ex Lindley: Edwards’s Bot. Reg. 15: plate 1302. 1830 , | ||||||||||||||||
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