Chloracantha spinosa var. jaliscensis (McVaugh) S.D. Sundb. (original description)
Chloracantha spinosa var. spinosissima (Brandegee) S.D.Sundb. (original description)
Coreocarpus ixtapanus B.L.Turner (original description)
Eupatorium bishopii (R.M.King & H.Rob.) B.L.Turner accepted as Cronquistianthus bishopii R.M.King & H.Rob. (original description)
Eupatorium celendinense (R.M.King & H.Rob.) B.L.Turner accepted as Cronquistianthus celendinensis R.M.King & H.Rob. (original description)
Eupatorium chachapoyense (R.M.King & H.Rob.) B.L.Turner accepted as Cronquistianthus chachapoyensis R.M.King & H.Rob. (original description)
Eupatorium determinatum (B.L.Rob.) B.L.Turner accepted as Cronquistianthus determinatus (B.L.Rob.) R.M.King & H.Rob. (original description)
Eupatorium rosei (R.M.King & H.Rob.) B.L.Turner accepted as Cronquistianthus rosei R.M.King & H.Rob. (original description)
Isocoma humilis G.L.Nesom (original description)
Isocoma menziesii var. vernonioides (Nutt.) Nesom (original description)