Flora of North America species comparison

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Heuchera villosa var. arkansana
Photo is of parent taxon

Arkansas alum-root
Inflorescences

dense, 10–35(–62) × 1–3(–4) cm, internodes in floral branchlets 0.3–1 mm.
Pedicels

0.2–0.9 mm.
Flowers

hypanthium subglobose, glabrous or sparsely long stipitate-glandular;

petals reflexed or tightly coiled, narrowly oblanceolate, 0.2–0.4 mm wide.
2n

= 14.

Heuchera villosa var. arkansana
Phenology Flowering Jun–Sep.
Habitat Shaded rocks and ledges, granite, gneiss, or acidic humus over limestone or shallow rocky soil
Elevation 300-900 m (1000-3000 ft)
Distribution
from FNA
AR
[BONAP county map]
Discussion

Variety arkansana is found in the Ozark Mountains.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 8, p. 90.
Parent taxa Saxifragaceae > Heuchera > Heuchera villosa
Sibling taxa
H. villosa var. villosa
Synonyms H. arkansana
Name authority (Rydberg) E. B. Smith: Proc. Arkansas Acad. Sci. 31: 100. 1977 ,
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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