Heuchera maxima |
Heuchera hirsutissima |
|
---|---|---|
island alumroot, jill-of-the-rocks |
shaggyhair alum-root |
|
Habit | Herbs caulescent; caudex branched. | Herbs acaulescent; caudex branched. |
Flowering stems | 9–30 cm, short or long stipitate-glandular, viscid. |
10–40 cm, short stipitate-glandular and sparsely long stipitate-glandular. |
Leaves | petiole (7–22 cm), densely long stipitate-glandular; blade pentagonal to septagonal, deeply 5-lobed, 6.3–17 cm, base deeply cordate, lobes rounded, margins crenate, apex obtuse, surfaces long stipitate-glandular abaxially, glabrous adaxially except long stipitate-glandular near margins, viscid. |
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. |
Inflorescences | dense. |
|
Flowers | hypanthium radially symmetric, free 0.3–1.4 mm, white to pink, hemispheric, 2.5–4.2 mm, densely long stipitate-glandular; sepals somewhat spreading, green- or red-tipped, equal, 0.7–2 mm, apex rounded or truncate, (medium to long stipitate-glandular); petals spreading, white, oblong-lanceolate, (clawed), unlobed, 2–4 mm, margins entire; stamens exserted 0.4–2.5 mm; styles exserted to 2 mm, 1.5–4 mm, 0.1+ mm diam. |
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. |
Capsules | ovoid, 4–8 mm, beaks divergent, not papillose. |
ovoid, 3 mm, beaks divergent, not papillose. |
Seeds | black, broadly fusiform, 0.4 mm. |
dark brown, ellipsoid, ca. 0.7 mm. |
Inflorescenses | dense. |
|
2n | = 14. |
= 14. |
Heuchera maxima |
Heuchera hirsutissima |
|
Phenology | Flowering Mar–May. | Flowering Jul–Aug. |
Habitat | Exposed cliffs | Fir and subalpine forest |
Elevation | 0-500 m (0-1600 ft) | 2100-3500 m (6900-11500 ft) |
Distribution |
CA
|
CA
|
Discussion | Of conservation concern. Heuchera maxima is found on the northern Channel Islands (Anacapa, Santa Cruz, Santa Rosa), Santa Barbara County. Heuchera maxima is in the Center for Plant Conservation’s National Collection of Endangered Plants. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
Source | FNA vol. 8, p. 93. | FNA vol. 8, p. 99. |
Parent taxa | Saxifragaceae > Heuchera | Saxifragaceae > Heuchera |
Sibling taxa | ||
Name authority | Greene: Bull. Calif. Acad. Sci. 2: 149. 1886 , | Rosendahl: Minnesota Stud. Pl. Sci. 2: 110. (1936) |
Web links |