Greek a — not, otos — ear, as plants in this genus have no appendages on the calyx, unlike Pultenaea.

Woody shrubs. Leaves simple, opposite, alternate or in whorls of 3 or more; margins curled under; stipules absent. Flowers axillary, solitary or in clusters, occasionally terminal. Sepals with 5 teeth, the upper 2 united into a lip. Petals with an almost circular standard; wings narrow-oblong; keel incurved. Stamens free. Ovary hairy, shortly stalked. Fruit ovate or obovate, mostly hairy, with 2 valves; seeds 2. Grown for the flowers and foliage, sometimes in baskets.

15 species endemic to Australia, occurring naturally in all states except the NT.

Seed or cuttings.

Leaves simple and without stipules, the margins bent under.

Source: Spencer, R. (2002). Fabaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 3. Flowering plants. Dicotyledons. Part 2. The identification of garden and cultivated plants. University of New South Wales Press.