Aster sect. Calimeridei (DC.) G.L.Nesom (original description)
Eurybia conspicua (Lindl.) G.L.Nesom accepted as Eurybia conspicua (Lindl.) G.L.Nesom (original description)
Eurybia sect. Chapmanianae (Semple) G.L.Nesom accepted as Symphyotrichum subg. Chapmaniani (Semple) Semple (original description)
Eurybia sect. Eryngiifoliae (Alexander) G.L.Nesom (original description)
Eurybia sect. Heleastrum (DC.) G.L.Nesom (original description)
Eurybia sect. Herrickia (Wooton & Standl.) G.L.Nesom accepted as Herrickia Wooton & Standl. (original description)
Eurybia subsect. Radulinae (Rydb.) G.L.Nesom (original description)
Symphyotrichum amethystinum (Nutt.) G.L.Nesom accepted as Symphyotrichum ×amethystinum (Nutt.) G.L.Nesom (original description)
Symphyotrichum columbianum (Piper) G.L.Nesom accepted as Symphyotrichum ×columbianum (Piper) G.L.Nesom (original description)
Symphyotrichum ericoides var. pansum (S.F.Blake) G.L.Nesom accepted as Symphyotrichum ericoides (L.) G.L.Nesom (original description)
Symphyotrichum ericoides var. stricticaule (Torr. & A.Gray) G.L.Nesom accepted as Symphyotrichum ericoides (L.) G.L.Nesom (original description)
Symphyotrichum expansum (Poepp. ex Spreng.) G.L.Nesom accepted as Symphyotrichum subulatum var. parviflorum (Nees) S.D.Sundb. (original description)
Symphyotrichum falcatum var. commutatum (Torr. & A.Gray) G.L.Nesom (original description)
Symphyotrichum falcatum var. crassulum (Rydb.) G.L.Nesom accepted as Symphyotrichum falcatum var. commutatum (Torr. & A.Gray) G.L.Nesom (original description)
Symphyotrichum foliaceum (Lindl. ex DC.) G.L.Nesom (original description)
Symphyotrichum lanceolatum var. hesperium (A.Gray) G.L.Nesom accepted as Symphyotrichum lanceolatum (Willd.) G.L.Nesom (original description)
Symphyotrichum lanceolatum var. hirsuticaule (Semple & Chmiel.) G.L.Nesom (original description)
Symphyotrichum parviceps (E.S.Burgess) G.L.Nesom (original description)
Symphyotrichum patagonicum (Cabrera) G.L.Nesom (original description)
Symphyotrichum patens (Aiton) G.L.Nesom (original description)
Symphyotrichum patens var. gracile (Hook.) G.L.Nesom (original description)
Symphyotrichum patens var. patentissimum (Lindl. ex Lindl.) G.L.Nesom (original description)
Symphyotrichum peteroanum (Phil.) G.L.Nesom (original description)
Symphyotrichum phlogifolium (Muhl. ex Willd.) G.L.Nesom (original description)
Symphyotrichum pilosum (Willd.) G.L.Nesom (original description)
Symphyotrichum pilosum var. pringlei (A.Gray) G.L.Nesom accepted as Symphyotrichum pilosum (Willd.) G.L.Nesom (original description)
Symphyotrichum porteri (A.Gray) G.L.Nesom (original description)
Symphyotrichum potosinum (A.Gray) G.L.Nesom (original description)
Symphyotrichum praealtum (Poir.) G.L.Nesom (original description)
Symphyotrichum praealtum var. angustior (Wiegand) G.L.Nesom (original description)
Symphyotrichum praealtum var. subasperum (Lindl.) G.L.Nesom (original description)
Symphyotrichum praealtum var. texicola (Wiegand) G.L.Nesom accepted as Symphyotrichum praealtum var. praealtum (Poir.) G.L.Nesom (original description)
Symphyotrichum prenanthoides (Muhl. ex Willd.) G.L.Nesom (original description)
Symphyotrichum priceae (Britton) G.L.Nesom (original description)
Symphyotrichum puniceum var. calderi (B.Boivin) G.L.Nesom accepted as Symphyotrichum puniceum var. puniceum (L.) Á.Löve & D.Löve (original description)
Symphyotrichum racemosum (Elliott) G.L.Nesom (original description)
Symphyotrichum racemosum var. subdumosum (Wiegand) G.L.Nesom accepted as Symphyotrichum racemosum (Elliott) G.L.Nesom (original description)
Symphyotrichum regnellii (Baker) G.L.Nesom (original description)
Symphyotrichum retroflexum G.L.Nesom (original description)
Symphyotrichum sagittifolium (Wedem. ex Willd.) G.L.Nesom accepted as Symphyotrichum cordifolium (L.) G.L.Nesom (original description)
Symphyotrichum schaffneri (S.D.Sundb. & A.G.Jones) G.L.Nesom accepted as Symphyotrichum potosinum (A.Gray) G.L.Nesom (original description)
Symphyotrichum sect. Concinna (Nees) G.L.Nesom (original description)
Symphyotrichum sect. Cordifolia (G.Don) G.L.Nesom (original description)
Symphyotrichum sect. Dumosa (Torr. & A.Gray) G.L.Nesom (original description)
Symphyotrichum sect. Ericoida (Torr. & A.Gray) G.L.Nesom (original description)
Symphyotrichum sect. Grandiflora (Torr. & A.Gray) G.L.Nesom (original description)
Symphyotrichum sericeum (Vent.) G.L.Nesom (original description)
Symphyotrichum shortii (Lindl.) G.L.Nesom (original description)
Symphyotrichum simmondsii (Small) G.L.Nesom (original description)
Symphyotrichum spathulatum (Lindl.) G.L.Nesom (original description)
Symphyotrichum spathulatum var. fremontii (Torr. & A.Gray) G.L.Nesom accepted as Symphyotrichum spathulatum var. spathulatum (Lindl.) G.L.Nesom (original description)
Symphyotrichum spathulatum var. intermedium (A.Gray) G.L.Nesom (original description)
Symphyotrichum spathulatum var. yosemitanum (A.Gray) G.L.Nesom (original description)
Symphyotrichum squamatum (Spreng.) G.L.Nesom accepted as Aster squamatus (Spreng.) Hieron. (original description)
Symphyotrichum subgeminatum (Fernald) G.L.Nesom (original description)
Symphyotrichum subsect. Brachyphylla (Torr. & A.Gray) G.L.Nesom (original description)
Symphyotrichum subsect. Dumosa (Torr. & A.Gray) G.L.Nesom (original description)
Symphyotrichum subsect. Grandiflora (Torr. & A.Gray) G.L.Nesom (original description)
Symphyotrichum subsect. Mexicana G.L.Nesom (original description)
Symphyotrichum subsect. Polyligula (Semple & Brouillet) G.L.Nesom (original description)
Symphyotrichum subsect. Turbinella (Rydb.) G.L.Nesom (original description)
Symphyotrichum subspicatum (Nees) G.L.Nesom (original description)
Symphyotrichum subspicatum var. grayi (Suksd.) G.L.Nesom accepted as Symphyotrichum subspicatum (Nees) G.L.Nesom (original description)
Symphyotrichum subulatum (Michx.) G.L.Nesom accepted as Aster subulatus Michx. (original description)
Symphyotrichum tenuifolium (L.) G.L.Nesom (original description)
Symphyotrichum tradescantii (L.) G.L.Nesom (original description)
Symphyotrichum trilineatum (Sch.Bip. ex Klatt) G.L.Nesom (original description)
Symphyotrichum turbinellum (Lindl.) G.L.Nesom (original description)
Symphyotrichum undulatum (L.) G.L.Nesom (original description)
Symphyotrichum versicolor (Willd.) G.L.Nesom (original description)