Heuchera grossulariifolia |
Heuchera wootonii |
|
---|---|---|
gooseberry-leaf alumroot |
White Mountain alum-root |
|
Habit | Herbs acaulescent; caudex branched. | Herbs, acaulescent; caudex branched or unbranched. |
Flowering stems | 15–65 cm, glabrous or short stipitate-glandular. |
4–60 cm, long stipitate-glandular. |
Leaves | petiole glabrous or short stipitate-glandular; blade cordate or orbiculate, shallowly 3–5-lobed, 1–7 cm, base cordate, lobes rounded, margins dentate, apex obtuse, surfaces glabrous or short stipitate-glandular. |
petiole long stipitate-glandular; blade orbiculate, shallowly 5–7-lobed, 4–7 cm, base cordate, lobes rounded to ovate, margins dentate, apex obtuse, surfaces glaucous, long stipitate-glandular along veins abaxially, glabrous adaxially. |
Inflorescences | dense, interrupted. |
dense. |
Flowers | hypanthium weakly bilaterally symmetric, free 1.2–1.9 mm, cream, broadly campanulate, 4–7 mm, short stipitate-glandular; sepals erect, often red-tipped, equal, 2 mm, apex rounded; petals erect, pink or white, spatulate to narrowly oblanceolate, (clawed), unlobed, 1–3 mm, margins entire; stamens included 1.5 mm; (filaments strongly incurved, shorter than and almost concealed by anthers); styles included to 1 mm, 0.5 mm, 0.1+ mm diam. |
hypanthium radially symmetic, free 0.5 mm, green, flat, saucer-shaped, 2–3 mm, short stipitate-glandular; sepals reflexed, green-tipped, (triangular), equal, 0.5 mm, apex acute; petals reflexed, white, widely elliptic, (clawed), unlobed, 1 mm, margins entire; stamens included 0.5–0.8 mm, (incurved over stigmas); styles included 1–1.5 mm, 0.5 mm, 0.1+ mm diam. |
Capsules | ovoid, 5 mm, beaks divergent, not papillose. |
oblong, ca. 6 mm, beaks divergent, not papillose. |
Seeds | dark brown, ellipsoid, 0.6 mm. |
dark brown, fusiform, 0.7 mm. |
2n | = 14, 28. |
|
Heuchera grossulariifolia |
Heuchera wootonii |
|
Phenology | Flowering May–Aug. | Flowering Jun–Sep. |
Habitat | Grassy hillsides, rocky canyon walls, alpine talus slopes | Rocky slopes |
Elevation | 100-3400 m (300-11200 ft) | 2100-3700 m (6900-12100 ft) |
Distribution |
ID; MT; NV; OR; WA
|
NM |
Discussion | Heuchera grossulariifolia includes both diploids and autotetraploids. K. A. Segraves and J. N. Thompson (1999) analyzed floral traits and flowering phenology in diploid and autotetraploid plants. Overall, plant size was greater in tetraploids than in diploids; flowers of tetraploids were larger (average hypanthium 6.5 mm) than those of diploids (average hypanthium 5.5 mm) and had a slightly different shape and phenology, but the diploids and tetraploids were not assigned taxonomic status in their study. Diploids and tetraploids were mixed in some populations, where characters intergraded (D. E. Soltis, pers. comm.). The autotetraploids have had two to seven independent origins from diploid progenitors, and do not represent a monophyletic lineage (Segraves and Thompson; Segraves et al. 1999). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Heuchera wootonii occurs in the Sacramento and White mountains of south-central New Mexico. It resembles H. parvifolia. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 8, p. 103. | FNA vol. 8, p. 104. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | H. cusickii, H. grossulariifolia var. tenuifolia, H. tenuifolia | |
Name authority | Rydberg: Mem. New York Bot. Gard. 1: 196. (1900) | Rydberg: in N. L. Britton et al., N. Amer. Fl. 22: 113. 1905 , |
Web links |