Nabalus crepidineus, commonly called the nodding rattlesnakeroot,[1] is a species of flowering plant in the family Asteraceae.

[4][3] It is most easily seen in the spring, where it can forms large colonies of sterile basal rosettes.

These rosettes are typically epehemeral, with proportionally very few persisting beyond mid-summer into the flowering period.

[3] Molecular and morphological evidence indicates that Nabalus crepidineus and its North American relatives are best treated in a separate genus from Prenanthes.

[5][6] This plant occurs from western New York west to southeastern tip of Minnesota, south to Arkansas and Tennessee.