. "Standleyanthus is a genus of Central American plants in the boneset tribe within the sunflower family.The genus is named for US botanist Paul Carpenter Standley (1884-1963).SpeciesThe only known species is Standleyanthus triptychus, native to Costa Rica."@en . . . . . . . "Eupatorium triptychum (B.L.Rob.)" . . . . .