Ageratina areolaris (DC.) Gage ex B.L.Turner accepted as Piptothrix areolaris (DC.) R.M.King & H.Rob. (original description)
Ageratina jaliscensis (B.L.Rob.) Gage ex B.L.Turner accepted as Piptothrix jaliscensis B.L.Rob. (original description)
Ageratina leiocarpa (B.L.Rob.) Gage ex B.L.Turner (original description)
Ageratina palmeri (A.Gray) Gage ex B.L.Turner accepted as Piptothrix palmeri A.Gray (original description)
Brickellia hinckleyi var. terlinguensis (Flyr) B.L.Turner (original description)
Eupatorium bohlmannianum (R.M.King & H.Rob.) B.L.Turner accepted as Fleischmannia bohlmanniana R.M.King & H.Rob. (original description)
Eupatorium iltisii (R.M.King & H.Rob.) Whittem. ex B.L.Turner accepted as Critonia iltisii R.M.King & H.Rob. (original description)
Eupatorium ornatum (R.M.King & H.Rob.) B.L.Turner accepted as Bartlettina ornata R.M.King & H.Rob. (original description)
Eupatorium paneroi (B.L.Turner) B.L.Turner accepted as Critonia paneroi B.L.Turner (original description)