Eupatorium lancifolium

Eupatorium lancifolium, commonly called lanceleaf thoroughwort or lanceleaf eupatorium, is a North American herbaceous perennial plant in the family Asteraceae native to the south-central United States (Mississippi, Alabama, Arkansas, Louisiana and Texas).^[3][4]

Lanceleaf thoroughwort
Conservation status
Vulnerable  (NatureServe)[1]
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Asterales
Family:	Asteraceae
Genus:	Eupatorium
Species:	E. lancifolium
Binomial name
Eupatorium lancifolium (Torr. & A.Gray) Small
Synonyms[2]
Eupatorium parviflorum var. lancifolium Torr. & A. Gray 1841 Eupatorium semiserratum var. lancifolium (Torr. & A. Gray) A. Gray

It is related to Eupatorium semiserratum and has sometimes been considered to be part of that species, but can be distinguished by the size and color of the leaves and because it grows in wetter areas.^[3]