Heuchera sanguinea |
Heuchera glomerulata |
|
---|---|---|
coralbells |
Chiricahua Mountain alum-root |
|
Habit | Herbs acaulescent; caudex branched. | Herbs acaulescent; caudex branched. |
Flowering stems | 20–40 cm, short and sometimes long stipitate-glandular. |
25–40 cm, 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 short stipitate-glandular; blade (purple abaxially, variegated adaxially), ovate to orbiculate, shallowly 5-lobed, 2.5–9 cm, base cordate, lobes rounded, margins dentate, apex obtuse, surfaces short stipitate-glandular, long stipitate-glandular on veins abaxially, short stipitate-glandular and sparsely long stipitate-glandular adaxially. |
Inflorescences | moderately dense to diffuse. |
dense, (interrupted). |
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 radially symmetric, free 0.8–1.2 mm, yellowish green, campanulate, 3.5–5 mm, densely long stipitate-glandular mixed with short stipitate-glandular; sepals erect or incurved at tip, green-tipped, equal, 1.5–2 mm, apex acute; petals erect, white, narrowly oblanceolate, (clawed), unlobed, 1.5–1.8 mm, margins entire; stamens included 0.5 mm; (filaments strongly incurved, slender, shorter than and almost concealed by anthers); styles included 1 mm, to 0.5 mm, 0.1+ mm diam. |
Capsules | ovoid, 4.5–6 mm, beaks divergent, not papillose. |
ovoid, 4–5 mm, beaks divergent, not papillose. |
Seeds | dark brown, ellipsoid, 0.5–0.6 mm, bluntly spiny. |
black, fusiform, 0.5 mm. |
2n | = 14. |
|
Heuchera sanguinea |
Heuchera glomerulata |
|
Phenology | Flowering Mar–Oct. | Flowering May. |
Habitat | Moist, shaded rocks | Shaded, rocky slopes |
Elevation | 1200-2600 m (3900-8500 ft) | 1300-2000 m (4300-6600 ft) |
Distribution |
AZ; NM; Mexico (Chihuahua)
|
AZ; NM |
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 glomerulata occurs in the Chiricahua and Pinaleno mountains of southeastern Arizona and in New Mexico. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 8, p. 100. | FNA vol. 8, p. 103. |
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: 155. (1936) |
Web links |