twigs patent, scarcely downy; leaves scattered, close, sub-imbricate, sessile, ovate, sub-acute, sub-recurvo-patent, concave above, glabrous, nerve-keeled beneath, and hairy at the margin; flowers sub-sessile, capitate-aggregate; calyx lobes lanceolate, obtuse, hairy, ciliate at the hyaline margin; petals longer than the calyx, obovate-cuneate, sub-acute, bearded in the middle. A foot or more in height, with patent, glabrous branches, the ultimate twigs uncial. Leaves 2–2 1/2 lines long, 1 1/2 line wide, with flat margins, the uppermost somewhat imbricate. Flowers 4–6 together. Calyx 2 lines long, the lobes concave. Petals 1/2 longer than the calyx.—Style eventually elongate, a little thickened upwards. Habit nearly that of an Acmadenia. It differs from A. squarrosa, B. & W. by the more robust growth, 2–3 times larger leaves, &c.