A small tree, 15 ft. in height. Leaves on short stalks, oblong-lanceolate, acuminate, denticulate, unicostate, arcuate-venose, smooth or slightly stellate-tomentose, especially along the nerves, 6–8 in. long, 2–3 in. wide. Cymes terminal, many-flowered; pedicels 4–6 lines long. Flowers white or yellow, 1–1 1/4 in. diam. Sepals linear, longer than the petals. Filaments monadelphous below, dividing above into 4 bundles, filaments all antheriferous, equalling the petals. Style filiform, longer than the stamens; stigmas obtuse. Ovary hirsute, 6-celled; cells many-ovuled. Fruit globose, the size of a walnut, densely covered with long, stout, hooked, ciliated prickles.
