Heuchera micrantha |
Heuchera eastwoodiae |
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alum root, crevice alum-root, small-flower alumroot |
Senator Mine alumroot |
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| Habit | Herbs caulescent; caudex branched. | Herbs acaulescent; caudex unbranched. | ||||||||||||||||
| Flowering stems | 6–57 cm, short to long stipitate-glandular or glabrous, viscid. |
30–50 cm, short or long stipitate-glandular. |
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| Leaves | 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. |
petiole nearly glabrous or short to long stipitate-glandular; blade (purple abaxially, variegated adaxially), orbiculate-cordate, shallowly 5-lobed, 2.5–8.5 cm, base cordate, lobes rounded, margins dentate, apex short-apiculate, surfaces short to long stipitate-glandular abaxially, short stipitate-glandular or sparsely long stipitate-glandular adaxially. |
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| Inflorescences | diffuse. |
dense. |
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| Flowers | 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. |
hypanthium weakly bilaterally symmetric, free 1.5–2 mm, cream or greenish, broadly turbinate or campanulate, 3–4.5 mm, short or sparsely medium stipitate-glandular; sepals 6, incurved at apex, red-tipped, equal, 1–1.5 mm, apex acute; petals absent or (1–)6 and much reduced, erect, greenish, lanceolate, unlobed, 1 mm, margins entire; stamens 6, included 1 mm; styles included 1.5 mm, to 1 mm, 0.1+ mm diam. |
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| Capsules | ovoid, 3–8.5 mm, beaks divergent, not papillose. |
ovoid, 5–7 mm, beaks divergent, not papillose. |
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| Seeds | black, broadly ellipsoid, (not curved), 0.5–0.8 mm. |
dark brown, asymmetrically ellipsoid or convex-fusiform, 0.6 mm. |
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Heuchera micrantha |
Heuchera eastwoodiae |
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| Phenology | Flowering May–Aug. | |||||||||||||||||
| Habitat | Shaded, rocky slopes | |||||||||||||||||
| Elevation | 1500-1900 m [4900-6200 ft] | |||||||||||||||||
| Distribution |
CA; ID; OR; WA; BC
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AZ |
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| Discussion | 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.) |
Heuchera eastwoodiae occurs in central Arizona and is unique in the genus for its hexamerous flowers. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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| Key |
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| Name authority | Douglas ex Lindley: Edwards’s Bot. Reg. 15: plate 1302. 1830 , | Rosendahl: Minnesota Stud. Pl. Sci. 2: 152. (1936) | ||||||||||||||||
| Source | FNA vol. 8, p. 91. | FNA vol. 8, p. 102. | ||||||||||||||||
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