Artemisia tripartita var. hawkinsii E.H.Kelso (original description)
Chrysopsis mariana var. floridana (Small) Fernald accepted as Chrysopsis floridana Small (original description)
Chrysopsis mariana var. macradenia Fernald accepted as Chrysopsis mariana (L.) Elliott (original description)
Eupatorium leucolepis var. novae-angliae Fernald (original description)
Pectis texana Cory accepted as Pectis angustifolia var. fastigiata (A.Gray) D.J.Keil (original description)
Pericome glandulosa Goodman accepted as Pericome caudata A.Gray (original description)
Rudbeckia hirta var. brittonii (Small) Fernald accepted as Rudbeckia hirta var. hirta L. (original description)
Rudbeckia hirta var. corymbifera Fernald accepted as Rudbeckia hirta var. pulcherrima Farw. (original description)
Rudbeckia hirta var. monticola (Small) Fernald accepted as Rudbeckia hirta var. hirta L. (original description)
Rudbeckia hirta var. sericea (T.V.Moore) Fernald accepted as Rudbeckia hirta var. pulcherrima Farw. (original description)
Rudbeckia subtomentosa f. craigii (Sherff) Fernald (original description)
Rudbeckia triloba var. beadlei (Small) Fernald accepted as Rudbeckia triloba var. triloba L. (original description)
Silphium compositum f. orae (Small) L.M.Perry (original description)
Silphium dentatum f. nodum (Small) L.M.Perry (original description)
Silphium dentatum var. angustatum (A.Gray) L.M.Perry accepted as Silphium asteriscus var. dentatum (original description)
Silphium gatesii f. truncatum L.M.Perry (original description)
Silphium integrifolium var. deamii L.M.Perry accepted as Silphium integrifolium var. integrifolium Michx. (original description)
Silphium integrifolium var. gattingeri L.M.Perry accepted as Silphium asteriscus var. asteriscus L. (original description)
Silphium laciniatum var. robinsonii L.M.Perry accepted as Silphium laciniatum L. (original description)
Silphium simpsonii var. wrightii L.M.Perry accepted as Silphium radula var. radula (original description)
Silphium trifoliatum f. praecisum L.M.Perry (original description)