Wild (I.e.) described var. glabrifolia and distinguished it from var. kraussiana by its glabrous vegetative parts. Examination of a wide range of material shows that this difference does not hold and the distribution is practically the same, therefore var. glabrifolia is not upheld in this treatment. It is interesting to note that X. kotzei, which Wild sinks under X. kraussiana var. kraussiana, has a holotype with sparsely pubescent vegetative parts, while the paratypes, apparently from the same tree, are completely glabrous.
From southern Africa, has been grown around Nairobi, e.g. Grahame Bell 3.
Small shrub up to 1.6 m. tall, young branches from densely yellowish-pubescent to quite glabrous.
Fruit woody, c. 4 x 2–5 cm., ovoid or ellipsoid, with c. 8 longitudinal ridges, splitting into c. 8 longitudinal segments; style persistent as a hard point.
Seeds many, 9 x 5 mm., ellipsoid, brownish, pilose with a red sticky aril down one side.
Sepals usually 3, c. 1.5 x 1 cm., broadly obovate, very concave, apex rounded, margins membranous, ± densely pubescent outside.
Petals white, 7–12, up to 3.5 x 1.5 cm., oblanceolate to obovate, tapering to the base, with scattered woolly hairs.
Stamens very numerous; filaments slender, c. 6 mm. long, glabrous or sparsely pubescent; anthers c. 6 x 1 mm., linear, glabrous, or sparsely pubescent.
Ovary ellipsoid, densely hairy, sulcate; style up to 5 mm. long, columnar, somewhat sulcate, glabrous or somewhat hairy at the base; stigmas 4–6, spreading, up to 1 mm. long.
Flowers in 1–3-flowered cymes in the axils of the leaves or terminal on the branches; peduncle up to 2 cm. long, pubescent or glabrous; pedicels up to 3.5 cm. long, pubescent or glabrous, with minute, caducous, deltoid bracts at their base.
Leaf-lamina 6–10 x 2–5 cm., elliptic, oblong-elliptic or narrowly obovate, apex obtuse or acute, base rounded or broadly cuneate, margin sometimes somewhat revolute, slightly paler below, pubescent or quite glabrous on both surfaces, lateral nerves in 7–11 pairs, slightly prominent below, looped within the margin; petiole up to c. 1 cm. long, pubescent or glabrous.
Tree or shrub up to 10 m tall; branchlets glabrous or pubescent. Leaf-blade elliptic to broadly elliptic or obovate, 4-12 cm long, 1.7-4 cm wide, apex acuminate, acute to rounded, base narrowly cuneate to rounded, margin entire, midrib prominent, veins 6-8 pairs, dividing near margin to form conspicuous submarginal vein, membranous to chartaceous, glabrous or pubescent; petiole 0.5-1 cm long, glabrous or pubescent. Flowers in 1-3-flowered cymes in axils of leaves or on the branches; peduncles 2-3 cm long; pedicels up to 4.5 cm long, glabrous or pubescent. Sepals 3, ovate to obovate, 1.5-1.8 cm long, 1 cm wide, deeply concave, apex rounded, green but margins white, pubescent outside. Petals white, 7-12, obovate, 2-3.5 cm long, 0.5-1.5 cm wide, narrowed at base, glabrous or sparsely woolly. Stamens numerous; filaments 6 mm long, with scattered hairs; anthers linear, 5 mm long. Ovary ellipsoid, sulcate, densely hairy; style 0.8-1.0 cm long, columnar; stigmas 4, spreading, 1 mm long. Fruit woody, ovoid or ellipsoid with 8 longitudinal ridges, beaked, splitting into 4-8 segments. Seeds numerous, reddish black, obvoid, 7 mm long, 5 mm wide, with fleshy red aril along one side.