Prostanthera nivea var. nivea

Erect to spreading shrub, 1–4 m high, not aromatic; branches 4-ridged, glabrous to densely covered with white appressed hairs (hoary), glands inconspicuous. Leaves sessile, linear to c. terete, 10–50 mm long, 0.5–2 mm wide, glabrous to densely covered with white appressed hairs (hoary), glands inconspicuous, base narrowly cuneate, decurrent, margin entire, flat to involute, apex obtuse or subacute. Flowers appearing axillary, often crowded towards the ends of branches in a leafy spike-like inflorescence; bracteoles persistent, minute and c. 0.5 mm long, c. 0.2 mm wide, to linear and leaf-like, 2–4 mm long, 0.3–0.5 mm wide. Calyx 6–8 mm long, tube 3–4 mm long, adaxial lobe 3–5 mm long (enlarged in fruit); corolla white to mauve, with yellow spots in throat, 14–18 mm long; anther appendage c. 1.5 mm long. Flowers Sep.–Dec.