Aster alpinus L.

Alpine Aster

Aster amellus L.

Italian Aster

Aster tataricus L. f.

Tatarian Aster

Silphium asteriscus L.

Symphyotrichum chilense (Nees) G.L. Nesom

Pacific Aster

Symphyotrichum cordifolium (L.) G.L. Nesom

Common Blue Wood Aster

Symphyotrichum drummondii (Lindl.) G.L. Nesom

Drummond's Aster

Symphyotrichum laeve (L.) Á. Löve & D. Löve

Smooth Blue Aster

Symphyotrichum lateriflorum (L.) Á. Löve & D. Löve

Calico Aster, Side-Flowering Aster, Starry Aster

Symphyotrichum nova-angliae

New England Aster

Symphyotrichum oblongifolium (Nutt.) G.L. Nesom

Aromatic Aster

Symphyotrichum oolentangiense (Riddell) G.L. Nesom

Skyblue Aster

Symphyotrichum pilosum (Willd.) G.L. Nesom

Hairy White Oldfield Aster

Symphyotrichum prenanthoides (Muhl. ex Willd.) G.L. Nesom

Crookedstem Aster

Symphyotrichum puniceum (L.) Á. Löve & D. Löve

Purplestem Aster

Symphyotrichum sericeum (Vent.) G.L. Nesom

Western Silver Aster

Symphyotrichum subspicatum (Nees) G.L. Nesom

Douglas Aster

Symphyotrichum urophyllum (Lindl.) G.L. Nesom

White Arrowleaf Aster