[3] Rhodolaena leroyana grows as a shrub or small tree up to 8 m (30 ft) tall.

[4] Its subcoriaceous leaves are elliptic to obovate in shape and measure up to 12 cm (5 in) long.

The solitary inflorescences have one or two flowers on a peduncle measuring up to 8 centimetres (3 in) long.

[3] Individual flowers are large with five sepals and five purple-pink petals, measuring up to 5 centimetres (2 in) long.

[4] Rhodolaena leroyana is known only from the region of Atsinanana where it is confined to Betampona Reserve.