Bahia Nutt. accepted as Bahia Lag. (original description)
Bahia lanata (Pursh) Nutt. accepted as Eriophyllum lanatum (Pursh) J.Forbes (original description)
Bidens gracilis Nutt. accepted as Bidens asymmetrica (H.Lév.) Sherff (original description)
Chrysopsis subg. Phyllopappus Nutt. (original description)
Chrysopsis subg. Phyllotheca Nutt. (original description)
Diodonta sect. Heterodonta Nutt. (original description)
Diodonta sect. Meduseae Nutt. (original description)
Erigeron corymbosus Nutt. (original description)
Gnaphalium ustulatum Nutt. (original description)
Homopappus subg. Actinaphoria Nutt. (original description)
Kymapleura (Nutt.) Nutt. accepted as Agoseris Raf. (original description)
Microrhynchus subg. Kymapleura Nutt. (original description)
Riddellia tagetina Nutt. accepted as Psilostrophe tagetina (Nutt.) Greene (original description)
Solidago corymbosa Nutt. (original description)
Townsendia subg. Nanodia Nutt. (original description)
Townsendia subg. Urophorus Nutt. (original description)
Troximon Nutt. (original description)