= Dipteracanthus elongatus (Beauverd) Nees; Prodr. [A. DC.] 11: 140 (1847)
= Ruellia elongata Beauverd; Fl. Owar. 1: 46 (1806)
= Ruellia longiflora Nees; Prodr. [A. DC.] 11: 140 (1847)
= Whitfieldia elongata var. abbreviata Mildbr.; Bull. Jard. Bot. État Bruxelles 17: 88 (1943)
= Whitfieldia elongata var. dewevrei De Wild. & T.Durand; Bull. Soc. Roy. Bot. Belgique 38: 111 (1899)
= Whitfieldia longiflora (Nees) S.Moore; J. Bot. 229 (1880)
= Whitfieldia longifolia T.Anderson; J. Proc. Linn. Soc., Bot. 7: 27 (1863), nom. superfl.
= Whitfieldia longifolia var. dewevrei (De Wild. & T.Durand) C.B.Clarke; Oliv. et al. (eds.), Fl. Trop. Afr. 5: 51 (1899)
= Whitfieldia longifolia var. perglabra (C.B.Clarke) Hutch. & Dalziel; Fl. W. Trop. Afr. 2: 248 (1931)
= Whitfieldia perglabra C.B.Clarke; Oliv. et al. (eds.), Fl. Trop. Africa 5: 66 (1900)
= Whitfieldia subviridis C.B.Clarke; Oliv. et al. (eds.), Fl. Trop. Africa 5: 66 (1900)
= Whitfieldia tanganyikensis C.B.Clarke; Oliv. et al. (eds.), Fl. Trop. Africa 5: 67 (1900)