Ampelaster G.L.Nesom (original description)
Ampelaster carolinianus (Walter) G.L.Nesom (original description)
Canadanthus G.L.Nesom (original description)
Canadanthus modestus (Lindl.) G.L.Nesom (original description)
Eucephalus breweri (A.Gray) G.L.Nesom (original description)
Eucephalus brickellioides (Greene) G.L.Nesom accepted as Eucephalus tomentellus (Greene) Greene (original description)
Eucephalus ledophyllus var. covillei (Greene) G.L.Nesom (original description)
Eurybia sibirica var. subintegerrima (Trautv.) G.L.Nesom (original description)
Symphyotrichum ×amethystinum (Nutt.) G.L.Nesom (original description)
Symphyotrichum ×columbianum (Piper) G.L.Nesom (original description)
Symphyotrichum bullatum (Klatt) G.L.Nesom (original description)
Symphyotrichum cordifolium (L.) G.L.Nesom (original description)
Symphyotrichum ericoides (L.) G.L.Nesom (original description)
Symphyotrichum novae-angliae (L.) G.L.Nesom (original description)
Symphyotrichum novi-belgii (L.) G.L.Nesom (original description)
Symphyotrichum sect. Concinni (Nees) G.L.Nesom (original description)
Symphyotrichum sect. Concolores (Torr. & A.Gray) G.L.Nesom (original description)
Symphyotrichum sect. Cordifolii (G.Don) G.L.Nesom (original description)
Symphyotrichum sect. Dumosi (Torr. & A.Gray) G.L.Nesom (original description)
Symphyotrichum sect. Ericoidei (Torr. & A.Gray) G.L.Nesom (original description)
Symphyotrichum sect. Grandiflori (Torr. & A.Gray) G.L.Nesom (original description)
Symphyotrichum sect. Patentes (Torr. & A.Gray) G.L.Nesom (original description)
Symphyotrichum subg. Virgulus (Raf.) G.L.Nesom accepted as Symphyotrichum Nees (original description)
Symphyotrichum subsect. Brachyphylli (Torr. & A.Gray) G.L.Nesom (original description)
Symphyotrichum subsect. Divergentes (A.Gray) G.L.Nesom (original description)
Symphyotrichum subsect. Laeves (A.Gray) G.L.Nesom (original description)
Symphyotrichum subsect. Mexicanae G.L.Nesom (original description)
Symphyotrichum subsect. Polyligulae (Semple & Brouillet) G.L.Nesom (original description)
Symphyotrichum subsect. Porteriana (Rydb.) G.L.Nesom (original description)
Symphyotrichum subsect. Turbinelli (Rydb.) G.L.Nesom (original description)
Vernonia zaragozana B.L.Turner accepted as Acourtia coulteri (A.Gray) Reveal & R.M.King (original description)