Arnoglossum ovatum var. lanceolatum (Nutt.) D.B.Ward accepted as Arnoglossum ovatum (Walter) H.Rob. (original description)
Eupatorium album var. petaloideum (Britton) R.K.Godfrey ex D.B.Ward accepted as Eupatorium album L. (original description)
Glyptopleurinae Joongku Lee & B.G.Baldwin accepted as Microseridinae Stebbins (original description)
Krigiinae Joongku Lee & B.G.Baldwin accepted as Microseridinae Stebbins (original description)
Liatris pauciflora var. secunda (Elliott) D.B.Ward accepted as Liatris pauciflora Pursh (original description)
Lygodesmiinae Joongku Lee & B.G.Baldwin accepted as Microseridinae Stebbins (original description)
Phalacroseridinae Joongku Lee & B.G.Baldwin accepted as Cichoriinae Cass. ex Dumort. (original description)
Pinaropappinae Joongku Lee & B.G.Baldwin accepted as Microseridinae Stebbins (original description)
Pityopsis nervosa var. tracyi (Small) D.B.Ward accepted as Pityopsis graminifolia var. tracyi (Small) Semple (original description)
Pyrrhopappinae Joongku Lee & B.G.Baldwin accepted as Microseridinae Stebbins (original description)
Silphium radula var. gracile (A.Gray) Clevinger accepted as Silphium radula var. gracile (A.Gray) J.A. Clevinger (original description)