Pentachaeta exilis (A. Gray) A. Gray [ Aphantochaeta exilis A. Gray]
no HD illustration available (m1)
Pentachaeta exilis (A. Gray) A. Gray [--] [Compositae]
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 4, : t. 11 (1857)