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*A small to medium-sized tree up to 30 m tall with bole up to 50 cm in diameter and small buttresses up to 0.7 m high; leaves .*Leaves ovate-elliptical, 8-16 cm × 3.5-6 cm, thinly leathery, upper surface dark purplish to wine-red and pubescent along the midrib, lower surface dull khaki-grey, petiole 8-12 mm long; petals .*Petals narrow, stamens 30-50, the appendages with a single bristle; fruit .*Fruit calyx lobes subequal, short, up to 10 mm × 8 mm.  ''S. havilandii'' is locally common in heath forest and freshwater swamp forest on sandy soils and peat overlying limestone. The density of the wood is about 1090 kg/m³at 15% moisture content.