Heuchera abramsii |
Heuchera pilosissima |
|
---|---|---|
Abrams' alumroot, San Gabriel alum-root |
alum root, hairy alumroot, Parish's alumroot, seaside alum-root |
|
Habit | Herbs subcaulescent; caudex branched. | Herbs caulescent; caudex branched. |
Flowering stems | 6–15 cm, short stipitate-glandular. |
3–22 cm, short to long stipitate-glandular, viscid. |
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 (7–22 cm), densely long stipitate-glandular; blade suborbiculate or pentagonal or septagonal, deeply 5–7-lobed, 8–9 cm, base deeply cordate, lobes rounded, margins crenate, apex obtuse, surfaces moderately to densely long stipitate-glandular, viscid. |
Inflorescences | dense. |
dense. |
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 radially symmetric, free to 1.6 mm, pink, hemispheric, 2–3 mm, densely long stipitate-glandular; sepals erect, green- or red-tipped, equal, 0.8–2.2 mm, apex obtuse; petals spreading, white or pink, oblong-elliptic, unlobed, 1.5–3.5 mm, margins entire; stamens exserted 0.4–2.3 mm; styles exserted 1–1.4 mm, 1.5–2 mm, 0.1+ mm diam. |
Capsules | ovoid, 3.5–5 mm, beaks divergent, not papillose. |
ovoid, 2.5–10 mm, beaks divergent, not papillose. |
Seeds | dark brown, ellipsoid, 0.6 mm. |
black, broadly fusiform, 0.6 mm. |
2n | = 14, 28. |
|
Heuchera abramsii |
Heuchera pilosissima |
|
Phenology | Flowering Jul–Aug. | Flowering Mar–Jun. |
Habitat | Rocky soil in red fir forest | Pine belts on coastal bluffs on sandstone or decomposed granite |
Elevation | 2800-3100 m (9200-10200 ft) | 10-500 m (0-1600 ft) |
Distribution |
CA |
CA; OR
|
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 pilosissima occurs in the marine zone and in the Coast Ranges. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 8, p. 99. | FNA vol. 8, p. 93. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | H. hemisphaerica, H. pilosissima var. hemisphaerica | |
Name authority | Rydberg: in N. L. Britton et al., N. Amer. Fl. 22: 109. 1905 , | Fischer & C. A. Meyer: Index Seminum (St. Petersburg) 5: 36. 1838 , |
Web links |