Heuchera pubescens


Fl. Amer. Sept. 1: 187. 1813,.

Common names: Downy alum-root
Synonyms: Heuchera pubescens var. brachyandra Rosendahl, Butters & Lakela
Treatment appears in FNA Volume 8. Treatment on page 95. Mentioned on page 84, 88, 94, 96.

Herbs acaulescent; caudex branched. Flowering stems often leafy, 30–95 cm, short stipitate-glandular. Leaves: petiole glabrous or short stipitate-glandular; blade broadly ovate to cordate, shallowly 5-lobed, 3–9 cm, base cordate to nearly truncate, lobes rounded to widely ovate, margins dentate, apex acute or obtuse, surfaces glabrous or sparsely short stipitate-glandular, at least on veins abaxially. Inflorescences diffuse. Flowers: hypanthium moderately bilaterally symmetric, free 2–6.2 mm, green, campanulate, abruptly inflated distal to adnation to ovary, 5.5–13.2 mm, very short stipitate-glandular; sepals spreading, green-tipped, equal, 2–4.2 mm, apex rounded (sinuses narrower than petals); petals inflexed, pink or purple, broadly spatulate, unlobed, 2.4–4.4 mm, margins fimbriate; stamens 1.1 mm included to 3.7 mm exserted; styles from 0.6 mm included to 3 mm exserted, 4–6 mm, to 0.1 mm diam. Capsules ovoid, 7–11 mm, not papillose. Seeds dark brown, ellipsoid, 0.6–1 mm. 2n = 14.

Phenology: Flowering May–Jun.
Habitat: Shaded circumneutral rock outcroppings, ledges, and rocky cuts
Elevation: 100-1400 m


V8 185-distribution-map.gif

Md., N.C., Pa., S.C., Va., W.Va.


Heuchera pubescens intergrades with H. americana where their ranges overlap, primarily in the central Appalachians of Maryland, Virginia, and West Virginia; the intergrading form is recognized here as H. americana var. hispida. It is rare in South Carolina.

Selected References


Lower Taxa

... more about "Heuchera pubescens"
Elizabeth Fortson Wells +  and Barbara Greene Shipes +
Downy alum-root +
Md. +, N.C. +, Pa. +, S.C. +, Va. +  and W.Va. +
100-1400 m +
Shaded circumneutral rock outcroppings, ledges, and rocky cuts +
Flowering May–Jun. +
Fl. Amer. Sept. +
Heuchera pubescens var. brachyandra +
Heuchera pubescens +
Heuchera +
species +