You selected Amelanchier canadensis var. tomentula Sarg. This is a synonym for:

Accepted scientific name:
Amelanchier arborea (F.Michx.) Fernald (accepted name) 1 literature reference for Amelanchier arborea (F.Michx.) Fernald
Synonyms: -
Infraspecific taxon: Amelanchier arborea var. alabamensis (Britton) G.N.Jones
Amelanchier arborea var. arborea
Amelanchier arborea var. austromontana (Ashe) H.E.Ahles
Amelanchier arborea var. cordifolia (Ashe) B.Boivin
Amelanchier arborea subsp. grandiflora (Rehder) P.LAndréy
Amelanchier arborea subsp. laevis (Wiegand) S.M.McKay ex P.Landry
Amelanchier arborea var. laevis (Wiegand) H.E.Ahles
Amelanchier arborea forma nuda (E.J.Palmer & Steyerm.) Rehder
Common names: -
Classification:
Plantae
Phylum Magnoliophyta
Class Magnoliopsida
Order Rosales
Family Rosaceae
Genus Amelanchier
Distribution: -
Additional data: -
Source database: IOPI-GPC, 10.0, Aug 2007
Latest taxonomic scrutiny: R. Pankhurst, 2009
Online resource: -
CoL taxon LSID: urn:lsid:catalogueoflife.org:taxon:2b67f970-60a7-102d-be47-00304854f810:ac2010