Shrub or small tree, armed with woody spines, usually in opposite pairs but sometimes alternate. Branches often spreading or trailing; young stems densely hairy and lenticellate. Leaves in clusters on short side shoots, just below the spines,usually young and just developing at time of flowering, densely velvety on both surfaces, especially when young, veining indented above. Flowers in 1-3-flowered clusters, white, fading to yellow, sweetly scented. Fruit broadly ellipsoid, ribbed, velvety.