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Large spreading shrub or small tree. Shoots densely hairy, somewhat angular. Lvs terete, simple, 20-60 × 0.7-1 mm, glabrous except when very young, rigid and spiny. Fls few, in fascicles of < 10; peduncles 0 or very short, densely hairy. Pedicels 3-4 mm long, densely hairy to glabrate. Perianth white, glabrous, = pedicels. Ovary shortly stipitate or sessile; style glabrous; stigma cone slightly oblique. Fr. 2-3 × 1.4-2.5 cm, mostly very corrugated; beak very short. Seed 15-25 × 6-12 mm (including wing), black; wing extending down 1 side.
A shrub usually 2-3 m tall, reaching 5 m in dense stands. Leaves needle-like, 30-40 mm long, 1 mm wide, tip sharply pointed, with downy hairs, hairless when mature. Creamy flowers borne in profusion, giving bushes a white appearance, each flower on a 4 mm long stalk with silky hairs. Follicles with 2 horns on the beaked tip, each growing in same direction as its stalk. Flowers:June to September.
Shrub or small tree, up to 5 m high, shoots with fine hairs when young, later glabrous. Leaves needle-shaped, 30-40 x 1 mm, sharp-pointed, hairy when young, hairless when mature. Flowers in axillary clusters, fragrant, white; pedicels hairy. Flowering time June-Sept. Fruit a hard, woody, warty follicle, purplish brown with paler markings, 2 apical horns, smooth.
Shrub or small tree to 5 m. Leaves needle-like, 30-40 mm long. Flowers in axillary clusters, white, on silky pedicels. Fruits warty.
Also native of Australia, is a small tree with needle leaves ± 3 × 0.1 cm., also planted on tea estates in Tanzania.
A shrub.
