Antennaria fusca E.E.Nelson accepted as Antennaria rosea subsp. pulvinata (Greene) R.J.Bayer (original description)
Antennaria oblancifolia E.E.Nelson (original description)
Arnica caespitosa A.Nelson accepted as Arnica rydbergii Greene (original description)
Arnica chamissonis var. longinodosa A.Nelson accepted as Arnica chamissonis Less. (original description)
Arnica columbiana A.Nelson accepted as Arnica gracilis Rydb. (original description)
Arnica exigua A.Nelson accepted as Arnica chamissonis Less. (original description)
Arnica ocreata A.Nelson accepted as Arnica chamissonis Less. (original description)
Arnica polycephala A.Nelson accepted as Arnica longifolia D.C.Eaton (original description)
Erigeron multifidus var. incertus A.Nelson accepted as Erigeron compositus Pursh (original description)
Erigeron yellowstonensis A.Nelson accepted as Erigeron acris var. kamtschaticus (DC.) Herder (original description)
Gnaphalium thermale E.E.Nelson accepted as Pseudognaphalium thermale (E.E.Nelson) G.L.Nesom (original description)
Machaeranthera superba A.Nelson accepted as Dieteria canescens var. canescens (Pursh) Nutt. (original description)
Solidago dilatata A.Nelson accepted as Solidago multiradiata Aiton (original description)