Gentianella quinquefolia

Gentianella quinquefolia, commonly called agueweed, is a flowering plant in the gentian family. It is native to eastern North America.

Subspecies
There are two subspecies:
 * Gentianella quinquefolia ssp. occidentalis - a more western variety, with larger flowers. Found in dry calcareous areas.
 * Gentianella quinquefolia ssp. quinquefolia - primarily Appalachian, with smaller flowers. Found in forests and Appalachian balds.