The stiff, dark grey-green leaves with dense hairs and a white wooly covering grow in clusters on short shoots. In contrast to the stiff thorny branches the yellow flowers are very elegant, trumpet shaped and up to 7cm long with five lobes folding backwards and a slight swelling at the base. Erect woody capsules without a well developed point grow to be up to 5cm long and 3cm wide and remain on the tree for a long time before splitting lengthways to release the brown seeds with round papery wings.
