The Aster novae-angliae, Aster amethystinus, Aster multi-florus complex
Wetmore, Ralph H. (Ralph Hartley), 1892-1989 Delisle, Albert L
Article
1939
Rhodora
41
190--192
BioStor
[Cambridge, Mass., etc.] New England Botanical Club [etc.]
BioStor: https://biostor.org/reference/139674