= Adhatoda capensis var. arenosa Nees; Prodr. [A.P. de Candolle] 11: 391 (1847)
= Adhatoda divaricata Willd. ex Nees; Prodr. [A.P. de Candolle] 11: 391, 432 (1847)
= Ecbolium villosum Kuntze; Revis. Gen. Pl. 2: 978 (1891)
= Gendarussa incana var. villosa Nees; Linnaea 15: 368 (1841)
= Justicia divaricata (Nees) T.Anderson; J. Proc. Linn. Soc., Bot. 7: 42 (1863), nom. illeg.
= Justicia divaricata Willd. ex Nees; Prodr. [A.P. de Candolle] 11: 391 (1847), pro syn.
= Justicia mossamedea S.Moore; J. Bot. 18: 312 (1880)
= Justicia namaensis Schinz; Verh. Bot. Vereins Prov. Brandenburg 31: 202 (1890)
= Justicia nepeta S.Moore; J. Bot. 18: 312 (1880)
= Monechma angustissimum S.Moore; J. Bot. 41: 137 (1903)
= Monechma divaricatum (Willd. ex Nees) C.B.Clarke; Fl. Cap. [Harvey & auct. succ.] 5: 72 (1901)
= Monechma eremum S.Moore; J. Bot. 45: 231 (1907)
= Monechma fimbriatum C.B.Clarke; Fl. Cap. [Harvey & auct. succ.] 5: 72 (1901)
= Monechma floridum C.B.Clarke; Fl. Trop. Afr. [Oliver et al.] 5: 219 (1900)
= Monechma namaense (Schinz) C.B.Clarke; Fl. Cap. [Harvey & auct. succ.] 5(1): 73 (1901)
= Monechma nepeta (S.Moore) C.B.Clarke; Fl. Trop. Afr. [Oliver et al.] 5: 219 (1900)
= Monechma nepetoides C.B.Clarke; Fl. Cap. [Harvey & auct. succ.] 5: 73 (1901)
= Monechma quintasii Benoist; Bol. Soc. Brot., Ser. 2, 24: 37 (1950)
= Monechma terminale S.Moore; J. Bot. 46: 75 (1908)
= Ruellia setigera Zeyh. ex Nees; Prodr. [A.P. de Candolle] 11: 391 (1847), nom. inval.