Osteospermum
(from osteon, a bone, and sperma, a seed; referring to the hardness of the seed). ORD. Compositae. A genus comprising thirty-eight species of greenhouse shrubs, sub-shrubs, or rarely herbs, confined to South Africa. Flower-heads yellow, heterogamous, small or mediocre, at the tips of the branches, pedunculate, solitary or loosely paniculate; involucre campanulate or sub-hemispherical; receptacle flat or convex. Leaves alternate, or rarely opposite, entire, toothed, or pinnatifid. The species are probably now lost to cultivation.