Heuchera sanguinea |
Heuchera hirsutissima |
|
---|---|---|
coralbells |
shaggyhair alum-root |
|
Habit | Herbs acaulescent; caudex branched. | Herbs acaulescent; caudex branched. |
Flowering stems | 20–40 cm, short and sometimes long stipitate-glandular. |
10–40 cm, short stipitate-glandular and sparsely long stipitate-glandular. |
Leaves | petiole long stipitate-glandular; blade reniform to orbiculate, shallowly 5–7-lobed, 2–5.5 cm, base cordate, lobes rounded, margins dentate, apex acute to obtuse, surfaces long stipitate-glandular on veins abaxially, glabrous or sparsely long stipitate-glandular adaxially. |
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. |
Inflorescences | moderately dense to diffuse. |
|
Flowers | hypanthium weakly bilaterally to radially symmetric, free 2.5–2.8 mm, dark pink to red, broadly campanulate or urceolate, 4–8 mm, short stipitate-glandular proximally, sparsely long stipitate-glandular distally; sepals spreading, darker red-tipped, equal, 2–3 mm, apex oblong or rounded; petals spreading, pink or cream, narrowly oblanceolate, unlobed, 1.2–1.8 mm (shorter than sepals), margins entire; stamens included 1.5–3 mm; styles included 1.5–3 mm, 1.5–2 mm, 0.1+ mm diam. |
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. |
Capsules | ovoid, 4.5–6 mm, beaks divergent, not papillose. |
ovoid, 3 mm, beaks divergent, not papillose. |
Seeds | dark brown, ellipsoid, 0.5–0.6 mm, bluntly spiny. |
dark brown, ellipsoid, ca. 0.7 mm. |
Inflorescenses | dense. |
|
2n | = 14. |
|
Heuchera sanguinea |
Heuchera hirsutissima |
|
Phenology | Flowering Mar–Oct. | Flowering Jul–Aug. |
Habitat | Moist, shaded rocks | Fir and subalpine forest |
Elevation | 1200-2600 m (3900-8500 ft) | 2100-3500 m (6900-11500 ft) |
Distribution |
AZ; NM; Mexico (Chihuahua)
|
CA
|
Discussion | Heuchera sanguinea occurs in the southwestern United States and northern Chihuahua, Mexico, and is widely cultivated throughout the cooler parts of North America. Heuchera sanguinea varies considerably within populations in shape, lobing, and size of leaves, in amount of hairs, and in shape, form, and color of flowers. Rydberg recognized var. pulchra as characterized by denser inflorescences and longer hairs on its pedicels, inferior part of the ovary, and sepals. Mixed populations with individuals bearing longer and shorter hairs can be found throughout the range of the species, especially in Arizona. It seems best to recognize H. sanguinea as a variable species without infraspecific taxa. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
Source | FNA vol. 8, p. 100. | FNA vol. 8, p. 99. |
Parent taxa | Saxifragaceae > Heuchera | Saxifragaceae > Heuchera |
Sibling taxa | ||
Synonyms | H. sanguinea var. pulchra | |
Name authority | Engelmann: in F. A. Wislizenus, Mem. Tour N. Mexico, 107. 1848 , | Rosendahl: Minnesota Stud. Pl. Sci. 2: 110. (1936) |
Web links |