ACACIA macrothyrsa Harms [family LEGUMINOSAE-MIMOSOIDEAE], in E.J. 28: 396 (1900); L.T.A.: 851 (1930); T.S.K.: 68 (1936); Bogdan in Nature in E. Afr., ser. 2, No. 1: 12 (1949); T.T.C.L.: 336 (1949); Gilb. & Bout. in F.C.B. 3: 157 (1952); I.T.U., ed. 2: 210, fig. 48a (1952); Coates Palgrave, Trees Centr. Afr.: 246–9 (1956); F.W.T.A., ed. 2, 1: 501 (1958). Type: Tanganyika, Iringa, Goetze 653 (B, holo. †, K, iso.!)
ACACIA buchananii Harms [family LEGUMINOSAE-MIMOSOIDEAE], in E.J. 30: 76 (1901); L.T.A.: 852 (1930); T.S.K., ed. 2: 68 (1936). Type: Nyasaland, Buchanan 256 (B, holo. †)
ACACIA prorsispinula Stapf [family LEGUMINOSAE-MIMOSOIDEAE], in J.L.S. 37: 513 (1906); Battiscombe, Cat. Trees Kenya Col.: 54 (1926). Types: Uganda, Acholi District, Dawe 856 (K, syn.!); Kenya, Nandi country, Sibu, Evan James (K, syn.!)