Anaphalis wightiana Thwaites accepted as Anaphalis zeylanica C.B.Clarke (original description)
Blumea amplectens Thwaites accepted as Blumea bifoliata (L.) DC. (original description)
Blumea angustifolia Thwaites (original description)
Blumea glandulosa Thwaites accepted as Blumea paniculata (Willd.) M.R.Almeida (original description)
Blumea myriocephala Thwaites accepted as Blumea lanceolaria var. spectabilis (DC.) Randeria (original description)
Brachyramphus sonchifolius Thwaites accepted as Launaea intybacea (Jacq.) Beauverd (original description)
Doronicum gardneri Thwaites accepted as Dendrosenecio elgonensis subsp. barbatipes (Hedberg) E.B.Knox (original description)
Emilia prenanthoidea Thwaites (original description)
Gnaphalium brevifolium Thwaites accepted as Anaphalis brevifolia DC. (original description)
Gnaphalium indicum Thwaites accepted as Anaphalis subdecurrens (DC.) Gamble (original description)
Gnaphalium oblongum Thwaites accepted as Anaphalis subdecurrens (DC.) Gamble (original description)
Gnaphalium wightianum Thwaites accepted as Anaphalis margaritacea (L.) Benth. & Hook.f. (original description)
Gnaphalium wightii Thwaites accepted as Anaphalis thwaitesii C.B.Clarke (original description)
Gynura hispida Thwaites (original description)
Lagenophora harveyi Thwaites (original description)
Senecio walkeri Thwaites (original description)
Vernonia conyzoides Thwaites (original description)
Vernonia gardneri Thwaites accepted as Acilepis gardneri (Thwaites) H.Rob. & Skvarla (original description)
Vernonia nemoralis Thwaites accepted as Acilepis nemoralis (Thwaites) H.Rob. & Skvarla (original description)
Youngia fuscipappa Thwaites (original description)