Heuchera hirsutissima |
Heuchera parviflora |
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shaggyhair alum-root |
cave alumroot, little-flower alum-root |
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Habit | Herbs acaulescent; caudex branched. | Herbs acaulescent; caudex branched or unbranched. | ||||
Flowering stems | 10–40 cm, short stipitate-glandular and sparsely long stipitate-glandular. |
9–45 cm, short to long stipitate-glandular, 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 usually long stipitate-glandular, sometimes short stipitate-glandular; blade (often purple abaxially), reniform to orbiculate, shallowly 5–7-lobed, 3–13 cm, base cordate, lobes rounded, margins crenate, apex obtuse, surfaces short or long stipitate-glandular abaxially, short stipitate-glandular adaxially, 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 0.3 mm, white or pink, obconic, 1.2–3.2 mm, short or moderately long stipitate-glandular; sepals erect, green-tipped, equal, 0.5–1.3 mm, apex rounded; petals reflexed, white or pink, narrowly oblanceolate, unlobed, 1.5–3.5 mm, margins entire; stamens exserted 1.2–3.2 mm; styles exserted 1–3 mm, 1.5–4 mm, to 0.1 mm diam. |
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Capsules | ovoid, 3 mm, beaks divergent, not papillose. |
ovoid, 2–5.7 mm, (minutely stipitate-glandular or glabrous), beaks divergent, not papillose. |
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Seeds | dark brown, ellipsoid, ca. 0.7 mm. |
dark brown, ovoid, 0.4–0.6 mm, smooth. |
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Inflorescenses | dense. |
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2n | = 14. |
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Heuchera hirsutissima |
Heuchera parviflora |
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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; IL; IN; KY; MO; MS; NC; 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). The specific epithet, parviflora, is similar to that of another species, Heuchera parvifolia, but these two species are distinct and have different legitimate names. The varieties of H. parviflora are not sympatric. The species merits phylogenetic study. The Blackfoot Indians applied a poultice of the pounded root to sores and swellings (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. 90. | ||||
Parent taxa | Saxifragaceae > Heuchera | Saxifragaceae > Heuchera | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Name authority | Rosendahl: Minnesota Stud. Pl. Sci. 2: 110. (1936) | Bartling: Index Seminum (Göttingen) 1838: 4. 1838 , | ||||
Web links |