Flora of North America species comparison

The green links below add additional plants to the comparison table. Blue links lead to other Web sites.
enable glossary links

Heuchera villosa var. arkansana

Heuchera villosa var. villosa
Photo is of parent taxon

Arkansas alum-root
Photo is of parent taxon

hairy alumroot
Inflorescences

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

dense to diffuse, 21–85 × 2–14 cm, internodes in floral branchlets 0.7–3 mm.
Pedicels

0.2–0.9 mm.

0.9–3 mm.
Flowers

hypanthium subglobose, glabrous or sparsely long stipitate-glandular;

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

hypanthium obconic or subglobose, long stipitate-glandular;

petals tightly coiled, linear or narrowly lanceolate, 0.1–0.2 mm wide.
2n

= 14.

= 14.

Heuchera villosa var. arkansana

Heuchera villosa var. villosa
Phenology Flowering Jun–Sep. Flowering Jun–Sep.
Habitat Shaded rocks and ledges, granite, gneiss, or acidic humus over limestone or shallow rocky soil Shaded rocks and ledges, granite, gneiss, or acidic humus over limestone or shallow rocky soil
Elevation 300-900 m (1000-3000 ft) 100-2000 m (300-6600 ft)
Distribution
from FNA
AR
[BONAP county map]
from FNA
AL; GA; IN; KY; MO; MS; NC; OH; PA; SC; TN; VA; WV
[BONAP county map]
Discussion

Variety arkansana is found in the Ozark Mountains.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Variety villosa is found east of the Prairies in the southern Appalachian Mountains and Interior Plateau of Indiana, Kentucky, Ohio, and Tennessee. In the high mountains of North Carolina and Tennessee, the leaf lobes tend to be very sharp and narrowly triangular, and in the Interior Plateau the lobes tend to be rounded; considerable variation in lobe shape occurs throughout the range.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 8, p. 90. FNA vol. 8, p. 89.
Parent taxa Saxifragaceae > Heuchera > Heuchera villosa Saxifragaceae > Heuchera > Heuchera villosa
Sibling taxa
H. villosa var. villosa
H. villosa var. arkansana
Synonyms H. arkansana H. macrorhiza, H. villosa var. intermedia, H. villosa var. macrorhiza
Name authority (Rydberg) E. B. Smith: Proc. Arkansas Acad. Sci. 31: 100. 1977 , unknown
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).



Type/paste one or more Latin names into the boxes above; matching taxa will show up below the box as you type. You can use the up/down arrow keys to move through the list.

(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Apiaceae, Boraginaceae, and Polemoniaceae.)

Choose a data source: Flora of North America

The species comparison tool is brought to you by:
Northwest Wildflowers