Corymbia ptychocarpa (F.Muell.) K.D.Hill & L.A.S.Johnson

Tree to 20 m. Bark tessellated or fibrous throughout, grey-brown. Juvenile leaves petiolate, elliptic. Adult leaves mostly alternate, narrowly ovate to lanceolate, acute or acuminate, thick; lamina 20–30 cm long, 5–13 cm wide, green or grey-green, strongly discolorous; lateral veins many, prominent, at 65°–80°; intramarginal vein confluent with margin; petiole 25–40 mm long. Umbels 3–7-flowered; peduncle thick, terete, up to 30 mm long; pedicels thick, 10–30 mm long. Buds obovoid or clavate, coarsely ribbed; operculum depressed hemispherical or conical, 6–10 mm long, 10–15 mm wide; hypanthium truncate-obovoid, 15–20 mm long, 10–18 mm wide. Fruits truncate-ovoid or cylindrical, strongly ribbed, 3.5–4.5 cm long, 2.5–3.5 cm wide. Seeds winged at one end, yellow-brown.

A tropical plant. It is native to NE Australia. It grows in warm temperate regions but can grow in the tropics and subtropics. It needs well drained soils. It is associated with permanent freshwater springs. It can grow in full sun or light shade. It suits hardiness zones 11-12. Mt Cootha Botanical Gardens. In Townsville palmetum.

The seeds are eaten.

It can be grown from seed.