American bluehearts, bupleurum (Buchnera americana)

Buchnera americana is a species in the Buchnera genus. It is commonly known as American bluehearts, bupleurum This name is accepted name for the species in the family Orobanchaceae subfamily Orobanchanae, tribe Buchnereae, . . This species is found in eastern United States, it also occurs in one location in the Canadian province of Ontario..