Heuchera hirsutissima
Heuchera caespitosa
shaggyhair alum-root
tuft alumroot, urn-flower alum-root
10–40 cm, short stipitate-glandular and sparsely long stipitate-glandular.
10–40 cm, long 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 long stipitate-glandular;
blade reniform or orbiculate, shallowly 5-lobed, 1–4 cm, base cordate or truncate, lobes rounded, margins dentate, apex obtuse, surfaces short or long stipitate-glandular.
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 strongly bilaterally symmetric, free 2–2.8 mm on adaxial side, pink to purplish, narrowly campanulate, widening at mouth, 4–7 mm, short stipitate-glandular proximally, long stipitate-glandular distally;
sepals spreading, green-tipped, equal, 1–1.2 mm, apex rounded;
petals spreading, white, oblanceolate, (clawed), unlobed, 2–2.5 mm (longer than sepals), margins entire;
stamens included 0.5 mm to exserted 0.5 mm;
styles to 0.5 mm included, 1.5 mm, 0.1+ mm diam.
ovoid, 3 mm, beaks divergent, not papillose.
ovoid, 4 mm, beaks divergent, not papillose.
dark brown, ellipsoid, ca. 0.7 mm.
dark brown, ellipsoid, 0.7 mm.
dense.
moderately dense.
= 14.
Heuchera hirsutissima
Heuchera caespitosa
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.)
Of conservation concern.
Heuchera caespitosa occurs in the western Transverse Ranges in Kern, San Bernardino, Tulare, and Ventura counties, and in the Outer South Coast Ranges, southern Sierra Nevada foothills, and southern Sierra Nevada. It is very similar to H. abramsii, H. brevistaminea, H. hirsutissima, and H. pulchella; the group needs thorough phylogenetic analysis.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
CA
WildflowerSearch
iNaturalist
USDA Plants Database
