Narrow - leaved peppermint

Tree to 30 m high, or rarely 50 m; bark persistent on trunk and larger branches or throughout, grey to grey-brown, shortly fibrous ('peppermint'), smooth above, grey, shedding in long ribbons.

Juvenile leaves opposite, narrow-lanceolate to broad-lanceolate, dull green. Adult leaves disjunct, narrow-lanceolate or lanceolate, 7–15 cm long, 0.7–1.5 cm wide, green, glossy or semi-glossy, concolorous.

Umbellasters >11-flowered; peduncle terete, 2–8 mm long; pedicels terete, 1–5 mm long. Buds clavate, 3–6 mm long, 2–4 mm diam., scar absent; calyptra hemispherical or conical (shortly beaked), shorter and narrower than hypanthium.

Fruit globose, hemispherical or pyriform, 4–6 mm long, 4–6 mm diam.; disc flat; valves enclosed or rim-level.