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 americana var. americana
Photo is of parent taxon

American alumroot
Petioles

glabrous or very short to sparsely long stipitate-glandular.
Flowers

hypanthium free 0.6–1.5 mm, urceolate;

petals greenish, white, or pink, narrower than sepals, margins entire or finely dentate.
2n

= 14.

Heuchera americana var. americana
Phenology Flowering Apr–Jun.
Habitat Rich woods often over base-saturated granite and gneiss, or in shallow, rocky soil
Elevation 70-1300 m (200-4300 ft)
Distribution
from FNA
AL; AR; CT; DE; GA; IL; IN; KY; LA; MD; MI; MO; MS; NC; NJ; NY; OH; OK; PA; SC; TN; VA; WV; ON
[BONAP county map]
Discussion

Variety americana is widely distributed from Connecticut to Georgia and from southern Ontario and Ohio to Oklahoma and northwestern Louisiana. It intergrades with Heuchera pubescens and H. richardsonii where their ranges overlap, but not with H. longiflora, H. parviflora, or H. villosa, which also share overlapping ranges with it.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 8, p. 94.
Parent taxa Saxifragaceae > Heuchera > Heuchera americana
Sibling taxa
H. americana var. hirsuticaulis, H. americana var. hispida
Synonyms H. americana var. brevipetala, H. americana var. heteradenia, H. americana var. subtruncata, H. calycosa, H. curtisii, H. curtisii var. crenata, H. lancipetala
Name authority 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