Aster puniceus var. albiflorus Farw. accepted as Symphyotrichum firmum (Nees) G.L.Nesom (original description)
Helianthus giganteus var. oppositifolius Farw. (original description)
Helianthus giganteus var. virgatus Farw. (original description)
Helianthus maximiliani var. dalyi Farw. (original description)
Lacinaria cylindracea var. solitaria (MacMill.) Farw. (original description)
Lacinaria scariosa var. trilisioides Farw. (original description)
Solidago bicolor var. luteola Farw. accepted as Solidago hispida Muhl. ex Willd. (original description)
Solidago bicolor var. ovalis Farw. accepted as Solidago hispida Muhl. ex Willd. (original description)
Solidago bicolor var. paniculata Farw. (original description)
Solidago bicolor var. spathulata Farw. accepted as Solidago hispida Muhl. ex Willd. (original description)
Solidago patula var. macra Farw. accepted as Solidago patula subsp. patula (original description)