Symphyotrichum × salignum ?
Symphyotrichum salignum (Willd.) G. L. Nesom, Phytologia 77: 295 (1995) (syn: Amellus salignus (L.) Opiz; Aster × acris Lapeyr.; Aster angustus Schur; Aster ×...
Symphyotrichum
Symphyotrichum novae-angliae (Canada)
Symphyotrichum novae-angliae (L.) G. L. Nesom, Phytologia 77: 287 (1995) (syn: Aster altissimus Moench ; Aster amplexicaulis Lam. ; Aster muehlenbergii Tausch ;...Symphyotrichum novi-belgii
Symphyotrichum novi-belgii (L.) G.L.Nesom, Phytologia 77 287 1994. (syn: Amellus divaricatus Gaterau; Aster adulterinus Willd.; Aster argutus Nees; Aster brumalis...Symphyotrichum pilosum (Introduced)
Symphyotrichum pilosum (Willd.) G. L. Nesom (syn: Aster chrysogonii Sennen; Aster ericoides var. pilosus (Willd.) Porter; Aster ericoides var. platyphyllus...Symphyotrichum spathulatum (USA)
Symphyotrichum spathulatum (Lindl.) G.L.Nesom, Phytologia 77: 291 (1995) (syn: Aster spathulatus Lindl.); . Subarctic America to Mexico (Baja California Norte): Alberta,...Symphyotrichum subulatum (Introduced)
Symphyotrichum subulatum (Michx.) G. L. Nesom, Phytologia 77(3) 293. (syn: Aster exilis var. australis A. Gray (ambiguous synonym); Aster flexicaulis Rafin.; Aster...