Has been cultivated, e.g. Tanzania,Lushoto District:Siri Plantation SC7, 7 Mar. 1932, Greenway 2939 ! & Uganda, Entebbe Botanic Garden fide Dale, Introd. Trees Uganda: 54 (1953).. Large tree to 35 m.. Flowers in racemiform cymes, petals glabrous on the inside, 5 stamen-fascicles, style simple and divided into 5 lobes, ovary 5-locular with 7–14 ovules in each locule.. Baccate fruits.
Flowers white, cream or greenish-white. [N.B.—there is no evidence of their ever being red as stated in ed. 1]
The yellow latex from the incised bark dries like gamboge.
Sepals persistent at the base of the fruit
Seeds 3–10 embedded in a yellowish pulp.
Forest tree, to 75 ft. high