Heuchera glomerulata |
Heuchera grossulariifolia |
|
---|---|---|
Chiricahua Mountain alum-root |
gooseberry-leaf alumroot |
|
Habit | Herbs acaulescent; caudex branched. | Herbs acaulescent; caudex branched. |
Flowering stems | 25–40 cm, long stipitate-glandular. |
15–65 cm, glabrous or short stipitate-glandular. |
Leaves | 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. |
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. |
Inflorescences | dense, (interrupted). |
dense, interrupted. |
Flowers | 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. |
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. |
Capsules | ovoid, 4–5 mm, beaks divergent, not papillose. |
ovoid, 5 mm, beaks divergent, not papillose. |
Seeds | black, fusiform, 0.5 mm. |
dark brown, ellipsoid, 0.6 mm. |
2n | = 14. |
= 14, 28. |
Heuchera glomerulata |
Heuchera grossulariifolia |
|
Phenology | Flowering May. | Flowering May–Aug. |
Habitat | Shaded, rocky slopes | Grassy hillsides, rocky canyon walls, alpine talus slopes |
Elevation | 1300-2000 m (4300-6600 ft) | 100-3400 m (300-11200 ft) |
Distribution |
AZ; NM |
ID; MT; NV; OR; WA
|
Discussion | 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.) |
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.) |
Source | FNA vol. 8, p. 103. | FNA vol. 8, p. 103. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | H. cusickii, H. grossulariifolia var. tenuifolia, H. tenuifolia | |
Name authority | Rosendahl: Minnesota Stud. Pl. Sci. 2: 155. (1936) | Rydberg: Mem. New York Bot. Gard. 1: 196. (1900) |
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