Heuchera sanguinea |
Heuchera eastwoodiae |
|
---|---|---|
coralbells |
Senator Mine alumroot |
|
Habit | Herbs acaulescent; caudex branched. | Herbs acaulescent; caudex unbranched. |
Flowering stems | 20–40 cm, short and sometimes long stipitate-glandular. |
30–50 cm, short or 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 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. |
Inflorescences | moderately dense to diffuse. |
dense. |
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 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. |
Capsules | ovoid, 4.5–6 mm, beaks divergent, not papillose. |
ovoid, 5–7 mm, beaks divergent, not papillose. |
Seeds | dark brown, ellipsoid, 0.5–0.6 mm, bluntly spiny. |
dark brown, asymmetrically ellipsoid or convex-fusiform, 0.6 mm. |
Heuchera sanguinea |
Heuchera eastwoodiae |
|
Phenology | Flowering Mar–Oct. | Flowering May–Aug. |
Habitat | Moist, shaded rocks | Shaded, rocky slopes |
Elevation | 1200-2600 m (3900-8500 ft) | 1500-1900 m (4900-6200 ft) |
Distribution |
AZ; NM; Mexico (Chihuahua)
|
AZ |
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.) |
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.) |
Source | FNA vol. 8, p. 100. | FNA vol. 8, p. 102. |
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: 152. (1936) |
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