Heuchera hirsutissima
Heuchera glabra
shaggyhair alum-root
alpine alum-root, alpine heuchera, smooth alumroot
10–40 cm, short stipitate-glandular and sparsely long stipitate-glandular.
15–60 cm, glabrous or short stipitate-glandular.
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 glabrous or short stipitate-glandular;
blade rounded-cordate to orbiculate, often ± polygonal, deeply 5(–7+)-lobed, 3.5–10 cm, base usually cordate, sometimes nearly truncate, lobes usually triangular, sometimes ovate, margins raggedly dentate to serrate, apex usually acute, surfaces sparsely short stipitate-glandular, glabrate.
diffuse.
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 0.4–0.5 mm, white, obconic, 2–3.5 mm, moderately long stipitate-glandular;
sepals erect, green-tipped, equal, 0.5 mm, apex rounded;
petals reflexed, white, narrowly elliptic, (clawed), unlobed, 1.8–2 mm, margins entire;
stamens exserted 1–1.5 mm;
styles exserted 2–2.5 mm, 2–4 mm, to 0.1 mm diam.
ovoid, 3 mm, beaks divergent, not papillose.
ovoid, 4–6 mm, beaks divergent, not papillose.
dark brown, ellipsoid, ca. 0.7 mm.
dark brown, narrowly ellipsoid, 0.7–0.8 mm, finely spiny.
dense.
= 14.
= 14.
Heuchera hirsutissima
Heuchera glabra
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 glabra occurs from near sea level in the Aleutian Islands and the Panhandle in Alaska to above the tree line on Mount Hood, Oregon, in the Cascades, Olympic Mountains, and Wenatchee Mountains in Washington, and in the Coast Mountains to the Selkirks Range in British Columbia. It intergrades with H. micrantha where their ranges overlap in British Columbia, and where the two species probably hybridize. It tends to occur at higher elevations than does H. micrantha. The Tlingit used this species to treat inflammation of the testicles from syphilis (D. E. Moerman 1998).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
CA
WildflowerSearch
iNaturalist
USDA Plants Database
BC
OR
WA
Flora NW
PNW Herbaria
