GREWIA hexamita Burret [family TILIACEAE], in E.J. 45: 184 (1910); Wild in F.Z. 2: 55 (1963); Wild & Gonç. in Fl. Moçamb. 28: 25 (1969); Wild in F.S.A. 21(1): 12, fig. 1/1 (1984). Type: South Africa, Mpumalanga, Komatipoort, Schlechter 11780 (B†, holo., K!, WAG, iso.)
GREWIA messinica Burtt Davy [family TILIACEAE], Fl. Pl. & Ferns Transv.: 41 (1926). Type: South Africa, Northern Province, Messina, F.A. Rogers 21225 (K!, holo.)
GREWIA dumicola Exell [family TILIACEAE], in J.B. 72: 315 (1934); T.T.C.L.: 619, 653 (1949). Type: Tanzania, Mpwapwa District, Godegode, B.D. Burtt 4536 (BM, holo.)
GREWIA megistocarpa Burret [family TILIACEAE], in N.B.G.B. 12: 194 (1934); T.T.C.L.: 620 (1949). Type: Tanzania, Mpwapwa District, Usagara Mts, Schlieben 4263 (B†, holo., K!, photo.)
GREWIA schweickerdtii Burret [family TILIACEAE], in Bothalia 3: 244 (1937). Type: South Africa, Northern Province, Soutpansberg, Obermeyer, Schweickerdt & Verdoorn 120 (PRE, holo., K!, fragment & iso.)