Prostanthera rhombea R.Br.

Branches with stiff, spreading, sometimes gland tipped hairs. Leaves glabrous or with a few stiff spreading hairs, orbicular to nearly rhomboidal, sometimes almost bullate, 4–6 mm long, entire. Calyx c. 4 mm long, shortly pubescent and very glandular; lips nearly equal in length; the upper one broader than the lower. Divaricate, strongly aromatic shrub up to 2 m high. Nepean River district. Open forests and margins of RF. Fl. spring