Heuchera abramsii |
Heuchera bracteata |
|
---|---|---|
Abrams' alumroot, San Gabriel alum-root |
bract alumroot, Rocky Mountain alumroot |
|
Habit | Herbs subcaulescent; caudex branched. | Herbs usually subcaulescent; caudex branched or unbranched. |
Flowering stems | 6–15 cm, short stipitate-glandular. |
leafy, 6–28(–38) cm, short stipitate-glandular. |
Leaves | petiole glabrous or short stipitate-glandular and scattered medium stipitate-glandular; blade ovate, deeply 5-lobed, 0.5–2 cm, base truncate or shallowly cordate, lobes rounded, margins dentate, apex obtuse, surfaces short stipitate-glandular abaxially, 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. |
dense, (secund). |
Flowers | hypanthium strongly bilaterally symmetric, free 1.5–2 mm on adaxial side, reddish purple, cylindric, 4–5 mm, short stipitate-glandular proximally, medium stipitate-glandular distally; sepals spreading, green-tipped, unequal, 1.2–1.5 mm, apex obtuse or rounded; petals spreading, white, spatulate or oblanceolate, rarely linear, unlobed, 1.5–2.5 mm (equaling or longer than sepals), margins entire; stamens barely included to 1.5 mm exserted; styles exserted 1.5–2 mm, 2.5–3 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, 3.5–5 mm, beaks divergent, not papillose. |
ovoid, 4–6 mm, beaks divergent, not papillose. |
Seeds | dark brown, ellipsoid, 0.6 mm. |
brownish black, nearly straight along 1 side, convex on other side, 0.7–0.8 mm. |
Heuchera abramsii |
Heuchera bracteata |
|
Phenology | Flowering Jul–Aug. | Flowering May–Jul. |
Habitat | Rocky soil in red fir forest | Shaded rocky ledges and outcrops |
Elevation | 2800-3100 m (9200-10200 ft) | 1700-3500 m (5600-11500 ft) |
Distribution |
CA |
CO; WY
|
Discussion | Heuchera abramsii occurs in the San Antonio Mountains and the eastern part of the San Gabriel Mountains, San Bernardino and Los Angeles counties. It closely resembles H. brevistaminea, H. caespitosa, H. elegans, and H. pulchella. (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. 99. | FNA vol. 8, p. 97. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Tiarella bracteata | |
Name authority | Rydberg: in N. L. Britton et al., N. Amer. Fl. 22: 109. 1905 , | (Torrey) Seringe: in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 4: 52. 1830 , |
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