Actinomeris heterophylla Chapm. accepted as Verbesina heterophylla A.Gray (original description)
Conoclinium dichotomum Chapm. accepted as Conoclinium coelestinum (L.) DC. (original description)
Conoclinium rigidum (DC.) Chapm. accepted as Chromolaena rigida (Sw.) R.M.King & H.Rob. (original description)
Eupatorium suaveolens Chapm. accepted as Ageratina jucunda (Greene) Clewell & Wooten (original description)
Eupatorium tortifolium Chapm. accepted as Eupatorium cuneifolium Willd. (original description)
Grindelia nuda Wood accepted as Grindelia squarrosa (Pursh) Dunal (original description)
Vernonia angustifolia var. pumila Chapm. accepted as Vernonia blodgettii Small (original description)