Heuchera glomerulata |
Heuchera bracteata |
|
---|---|---|
Chiricahua Mountain alum-root |
bract alumroot, Rocky Mountain alumroot |
|
Habit | Herbs acaulescent; caudex branched. | Herbs usually subcaulescent; caudex branched or unbranched. |
Flowering stems | 25–40 cm, long stipitate-glandular. |
leafy, 6–28(–38) cm, 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 short to medium stipitate-glandular; blade reniform or broadly ovate, shallowly 5–7-lobed, 1.5–4 cm, base subcordate or truncate, lobes rounded, margins sharply dentate, apex often mucronate, surfaces short stipitate-glandular or sparsely long stipitate-glandular abaxially, short stipitate-glandular adaxially. |
Inflorescences | dense, (interrupted). |
dense, (secund). |
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 0.5–1.5 mm, greenish yellow, narrowly campanulate, 3–5 mm, short stipitate-glandular; sepals erect, green-tipped, equal, 1–1.5 mm, apex rounded; petals erect, green, oblanceolate, unlobed, 2 mm, margins entire; stamens exserted 0.5–1 mm; styles exserted 1 mm, 1.5–2 mm, 0.1+ mm diam. |
Capsules | ovoid, 4–5 mm, beaks divergent, not papillose. |
ovoid, 4–6 mm, beaks divergent, not papillose. |
Seeds | black, fusiform, 0.5 mm. |
brownish black, nearly straight along 1 side, convex on other side, 0.7–0.8 mm. |
2n | = 14. |
|
Heuchera glomerulata |
Heuchera bracteata |
|
Phenology | Flowering May. | Flowering May–Jul. |
Habitat | Shaded, rocky slopes | Shaded rocky ledges and outcrops |
Elevation | 1300-2000 m (4300-6600 ft) | 1700-3500 m (5600-11500 ft) |
Distribution |
AZ; NM |
CO; WY
|
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 bracteata occurs in the Rocky Mountains and foothills of northern Colorado and southern Wyoming. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 8, p. 103. | FNA vol. 8, p. 97. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Tiarella bracteata | |
Name authority | Rosendahl: Minnesota Stud. Pl. Sci. 2: 155. (1936) | (Torrey) Seringe: in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 4: 52. 1830 , |
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