Not an accepted name (status: unknown). The accepted name is Amelanchier arborea (F.Michx.) Fernald, 1941.

Amelanchier arborea f. nuda (E.J.Palmer & Steyerm.) Rehder, 1946 4% complete

No common name

J. Arnold Arbor. 27: 170 (1946)

There is no corrections for Amelanchier arborea f. nuda yet.