GREWIA arborea (Forssk.) Lam. [family TILIACEAE], Encycl. Méth. Bot. 3: 45 (1789); J.R.I. Wood in K.B. 39: 137 (1984); Hepper & Friis, Pl. Pehr Forssk. Fl. Aegypt.-Arab.: 236 (1994); Sebsebe in Fl. Eth. 2(2): 146 (1995). Types: Yemen, Wasab [Uahfad], Forsskål 490 (C, syn.) & Forsskål s.n. (BM, syn.)
Chadara arborea Forssk. [family TILIACEAE], Fl. Aegypt.-Arab.: CXIV, 105 (1775)
Grewia excelsa Vahl [family TILIACEAE], Symb. Bot. 1: 35 (1790), nom. illegit . Type as for G. arborea
Grewia fallax K. Schum. [family TILIACEAE], in E.J. 15: 116 (1892) & in P.O.A. C: 264 (1895); T.T.C.L.: 620 (1949); K.T.S.: 565, fig. 103/f13 (1961); K.T.S.L.: 154, fig. f13 on 152, map (1994). Type: Tanzania, Mwanza District, Kayenzi [Kagehi], Fischer 54 (B†, holo., K!, iso.)
Grewia rhytidophylla K. Schum. [family TILIACEAE], in E.J. 15: 122 (1892) & in P.O.A. C: 264 (1895). Type: Tanzania, Singida/Dodoma District, between Saranda [Salanda] and Ussure [Ussule], Fischer 60 (B†, holo., K!, iso.)
Grewia dubia Deflers [family TILIACEAE], in Bull. Soc. Bot. Fr. 42: 300 (1895). Type: Yemen, Bilad Hodjeria, Jebel Masana, Deflers 601 (P, holo., K!, iso.)
Grewia brachyclada Burret [family TILIACEAE], in E.J. 45: 184 (1910); T.T.C.L.: 619 (1949). Types: Tanzania, Pare Mts, between Kisiwani [Kisuani] and Maji ya Juu [Madji-ja-juu], Engler 1574 (B†, syn.) & between Gonja and Kisiwani [Kisuani], Engler 1561 (B†, syn.)