Ageratina altissima var. angustata (A.Gray) Clewell & Wooten accepted as Ageratina altissima var. altissima (L.) R.M.King & H.Rob. (original description)
Ageratina jucunda (Greene) Clewell & Wooten (original description)
Ageratum glomeratum G.M.Barroso & R.M.King accepted as Cavalcantia glomerata (G.M.Barroso & R.M.King) R.M.King & H.Rob. (original description)
Bahia integrifolia var. ourolepis (S.F.Blake) W.L.Ellison accepted as Platyschkuhria integrifolia (A.Gray) Rydb. (original description)
Monogereion G.M.Barroso & R.M.King (original description)
Platyschkuhria integrifolia var. desertorum (M.E.Jones) W.L.Ellison accepted as Platyschkuhria integrifolia (A.Gray) Rydb. (original description)
Platyschkuhria integrifolia var. oblongifolia (A.Gray) W.L.Ellison accepted as Platyschkuhria integrifolia (A.Gray) Rydb. (original description)
Platyschkuhria integrifolia var. ourolepis (S.F.Blake) W.L.Ellison accepted as Platyschkuhria integrifolia (A.Gray) Rydb. (original description)
Trixis chiapensis C.E.Anderson (original description)