Dipterocarpus gracilis
Growth FormIt is a large tree that can grow to 50 m tall, with buttress roots.TrunkBark is pale grey to mid grey brown, smooth with lenticels when young and become rough and scaly as it mature.FoliageLeaves are elliptic to oblong shaped (8 – 18 cm long and 4 – 10 cm wide) with a shortly acuminate leaf tip and an obtuse leaf base. Each leaf has 12—20 pairs of secondary veins. Young leaves are densely covered with golden brown hairs. As the leaf matures, only the mid vein on the upper surface, leaf margin and petiole are covered in golden hairs. Stipule is narrowly lanceolate and densely covered in golden brown hairs.
FlowersInflorescence (9 cm long) occurs at the end of the twigs. Flower is about 3.5 – 4 cm long, cream coloured with pink stripe at the centre of each petal. Flower comprises of 30 stamens, flask - shaped ovary and linear anthers which are tipped by slender tapering appendage that is about two times as long as the anther.FruitFruit has 2 large winged-like calyx lobes (10 – 14 cm long and 1.5 – 2.5 cm wide) and 3 shorter wings (1.5 – 2 cm long and 1 cm wide). Nut is globose (2 cm diameter), not ridged and smooth.HabitatIt is found in lowland rainforest, up to 800m altitude.Associated FloraA natural hybrid between D. gracilis and D. costatus has been observed in Thailand and Peninsular Malaysia.Ethnobotanical UsesOthers: Resin is used as a varnish and for illumination.
Growth FormIt is a large tree that can grow to 50 m tall, with buttress roots.TrunkBark is pale grey to mid grey brown, smooth with lenticels when young and become rough and scaly as it mature.FoliageLeaves are elliptic to oblong shaped (8 – 18 cm long and 4 – 10 cm wide) with a shortly acuminate leaf tip and an obtuse leaf base. Each leaf has 12—20 pairs of secondary veins. Young leaves are densely covered with golden brown hairs. As the leaf matures, only the mid vein on the upper surface, leaf margin and petiole are covered in golden hairs. Stipule is narrowly lanceolate and densely covered in golden brown hairs.
FlowersInflorescence (9 cm long) occurs at the end of the twigs. Flower is about 3.5 – 4 cm long, cream coloured with pink stripe at the centre of each petal. Flower comprises of 30 stamens, flask - shaped ovary and linear anthers which are tipped by slender tapering appendage that is about two times as long as the anther.FruitFruit has 2 large winged-like calyx lobes (10 – 14 cm long and 1.5 – 2.5 cm wide) and 3 shorter wings (1.5 – 2 cm long and 1 cm wide). Nut is globose (2 cm diameter), not ridged and smooth.HabitatIt is found in lowland rainforest, up to 800m altitude.Associated FloraA natural hybrid between D. gracilis and D. costatus has been observed in Thailand and Peninsular Malaysia.Ethnobotanical UsesOthers: Resin is used as a varnish and for illumination.
Growth FormIt is a large tree that can grow to 50 m tall, with buttress roots.TrunkBark is pale grey to mid grey brown, smooth with lenticels when young and become rough and scaly as it mature.FoliageLeaves are elliptic to oblong shaped (8 – 18 cm long and 4 – 10 cm wide) with a shortly acuminate leaf tip and an obtuse leaf base. Each leaf has 12—20 pairs of secondary veins. Young leaves are densely covered with golden brown hairs. As the leaf matures, only the mid vein on the upper surface, leaf margin and petiole are covered in golden hairs. Stipule is narrowly lanceolate and densely covered in golden brown hairs.
FlowersInflorescence (9 cm long) occurs at the end of the twigs. Flower is about 3.5 – 4 cm long, cream coloured with pink stripe at the centre of each petal. Flower comprises of 30 stamens, flask - shaped ovary and linear anthers which are tipped by slender tapering appendage that is about two times as long as the anther.FruitFruit has 2 large winged-like calyx lobes (10 – 14 cm long and 1.5 – 2.5 cm wide) and 3 shorter wings (1.5 – 2 cm long and 1 cm wide). Nut is globose (2 cm diameter), not ridged and smooth.HabitatIt is found in lowland rainforest, up to 800m altitude.Associated FloraA natural hybrid between D. gracilis and D. costatus has been observed in Thailand and Peninsular Malaysia.Ethnobotanical UsesOthers: Resin is used as a varnish and for illumination.