Heuchera parishii |
Heuchera alba |
|
---|---|---|
Mill Creek alum-root, Parish's alumroot |
white alumroot |
|
Habit | Herbs subcaulescent; caudex branched. | Herbs acaulescent; caudex branched. |
Flowering stems | 8–40 cm, long stipitate-glandular, viscid. |
often leafy, 26–77 cm, short stipitate-glandular. |
Leaves | petiole densely long stipitate-glandular; blade broadly ovate or reniform, deeply 5-lobed, 2–4 cm, base cordate or truncate, lobes rounded, margins dentate, apex obtuse, surfaces long stipitate-glandular, viscid. |
petiole glabrous or short stipitate-glandular; blade broadly ovate to cordate, shallowly 5-lobed, 4.5–9 cm, base cordate or nearly truncate, lobes rounded to widely ovate, margins dentate, apex acute or obtuse, surfaces glabrous or sparsely stipitate-glandular, at least on veins. |
Inflorescences | dense, (secund). |
diffuse. |
Flowers | hypanthium strongly bilaterally symmetric, free 0.8 mm on abaxial side, 1.2–2 mm on adaxial side, weakly inflated, pink to reddish, narrowly campanulate, 3.5–6 mm, short stipitate-glandular proximally, long stipitate-glandular distally; sepals erect, green-tipped, unequal, 0.5–1 mm on abaxial side, 1.5–2 mm on adaxial side, apex rounded; petals spreading, pink, narrowly oblanceolate, unlobed, (unequal, shorter on abaxial side, resembling filaments), 2–3 mm (equaling or longer than sepals), margins entire; stamens exserted 1.5 mm; styles exserted 0.5–1.5 mm, 1.5–2.5 mm, 0.1+ mm diam. |
hypanthium moderately bilaterally symmetric, free 3.5–4.5 mm, green, campanulate, abruptly inflated distal to adnation to ovary, 7.5–11 mm, short stipitate-glandular; sepals spreading, green-tipped, equal, 3–4 mm, apex rounded (sinuses narrower than petals); petals inflexed, white, broadly spatulate, unlobed, 2.8–3.5 mm, margins fimbriate; stamens 2 mm included to 2 mm exserted; styles included 0.5–1 mm, 4–6 mm, to 0.1 mm diam. |
Capsules | ovoid, 4–6 mm, beaks divergent, not papillose. |
ovoid, 9–10 mm, beaks divergent, not papillose. |
Seeds | black, fusiform, rounded at 1 end, acute at other, ca. 0.9 mm. |
dark brown, ellipsoid, 0.6–1 mm. |
Heuchera parishii |
Heuchera alba |
|
Phenology | Flowering Jul–Aug. | Flowering May–Jun. |
Habitat | Shaded rocky places in yellow pine and red fir forest | Shaded or exposed sandstone rock outcroppings, ridges, and peaks |
Elevation | 1500-3800 m (4900-12500 ft) | 1300-1500 m (4300-4900 ft) |
Distribution |
CA
|
VA; WV |
Discussion | Of conservation concern. Heuchera parishii occurs in the San Bernardino Mountains. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Heuchera alba occurs on sandstone ridges in the Ridge and Valley Province. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 8, p. 98. | FNA vol. 8, p. 96. |
Parent taxa | Saxifragaceae > Heuchera | Saxifragaceae > Heuchera |
Sibling taxa | ||
Synonyms | H. alpestris | |
Name authority | Rydberg: in N. L. Britton et al., N. Amer. Fl. 22: 109. (1905) | Rydberg: Torreya 26: 31, plate 2. (1926) |
Web links |