Heuchera hirsutissima |
Heuchera pilosissima |
|
---|---|---|
shaggyhair alum-root |
alum root, hairy alumroot, Parish's alumroot, seaside alum-root |
|
Habit | Herbs acaulescent; caudex branched. | Herbs caulescent; caudex branched. |
Flowering stems | 10–40 cm, short stipitate-glandular and sparsely long stipitate-glandular. |
3–22 cm, short to long stipitate-glandular, viscid. |
Leaves | petiole long stipitate-glandular; blade orbiculate to reniform, shallowly 5-lobed, 1–1.5 cm, base cordate, lobes rounded, margins dentate, apex obtuse, surfaces long stipitate-glandular. |
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. |
|
Flowers | hypanthium strongly bilaterally symmetric, free 0.8 mm on abaxial side, 1.8 mm on adaxial side, pink, narrowly cylindric, 5–6.5 mm, short stipitate-glandular proximally, densely long stipitate-glandular distally; sepals spreading, green- and red-tipped, unequal, 0.5–1.5 mm on abaxial side of hypanthium, to 0.5 mm on adaxial side, apex rounded; petals spreading, white, oblanceolate, (clawed), unlobed, 2–2.5 mm (equaling or longer than sepals, rarely shorter), margins entire; stamens exserted to 0.5 mm; styles included to 0.5 mm, 1.5 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 mm, beaks divergent, not papillose. |
ovoid, 2.5–10 mm, beaks divergent, not papillose. |
Seeds | dark brown, ellipsoid, ca. 0.7 mm. |
black, broadly fusiform, 0.6 mm. |
Inflorescenses | dense. |
|
2n | = 14. |
= 14, 28. |
Heuchera hirsutissima |
Heuchera pilosissima |
|
Phenology | Flowering Jul–Aug. | Flowering Mar–Jun. |
Habitat | Fir and subalpine forest | Pine belts on coastal bluffs on sandstone or decomposed granite |
Elevation | 2100-3500 m (6900-11500 ft) | 10-500 m (0-1600 ft) |
Distribution |
CA
|
CA; OR
|
Discussion | Of conservation concern. Heuchera hirsutissima is known from Mount San Jacinto and the San Jacinto Mountains of Riverside County and possibly the San Bernardino Mountains of San Bernardino County. It resembles H. caespitosa and H. elegans, except for its densely villous hypanthium and minute adaxial sepals. (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 | Saxifragaceae > Heuchera | Saxifragaceae > Heuchera |
Sibling taxa | ||
Synonyms | H. hemisphaerica, H. pilosissima var. hemisphaerica | |
Name authority | Rosendahl: Minnesota Stud. Pl. Sci. 2: 110. (1936) | Fischer & C. A. Meyer: Index Seminum (St. Petersburg) 5: 36. 1838 , |
Web links |