& A.Gray) Milstead Nabalus barbatus, the barbed rattlesnakeroot,[2] is a plant in the family Asteraceae.

It is native to the Southeastern United States where it is found in small numbers in a few disjunct areas of remaining natural grassland.

Because of this, it is considered a globally rare species, with only 35-70 remaining populations.

[5] The natural habitat of this species is prairie and savanna.

[5] This species occurs from Oklahoma, Arkansas, and Kentucky south from Texas to Georgia.