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Oldenburgia grandis forming seed
Image 374 of 569
The flower-heads of the donkey’s ears are velvety, whitish and daisy-like, emanating from the centre of the leaf rosettes. The involucre of Oldenburgia grandis flowers are rounded. When the flower-heads mature they assume the characteristic hairy thistle-like flat-topped appearance. There is a multitude of creamy stamens, surrounded by purplish ray flowers that later change to an orange-brown colour when the seed-head develops. The seed-head finally breaks open to release brown nutlet seeds. They have bristles attached at the tips (www.plantzafrica.com).