Hiptage lucida - Thai Helicopter Flower

Thai Helicopter Flower is a woody climber, with branches hairless, shiny, buds velvet-hairy. Flowers are pinkish white, with petals obovate or nearly round; tip rounded; base flat or wedge-shaped; margin fringed; claw 1.5-2.5 mm; limb 8-10 by 7-8 mm. Sepals are ovate to oblong; tip pointed to rounded; base flat, about 2.5 by 1.2 mm. Longest stamen filament is about 8-9 mm, the short ones 3-5 mm long; anther about 1 mm long. Ovary is about 2 mm in diameter, style about 1 cm long, hairless. Flowers are borne in clusters up to 14 cm long, carried on flower-cluster-stalks about 2 cm long; flower-stalks 1-2.2 cm, jointed mostly below the middle; bracts triangular, about 2 by 1 mm; bracteoles pointed, about 1 mm long. Leaves are elliptic or elliptic-oblong, 5.5-11.5 by 1.5 cm; tip tapering or with a short sharp point; base rounded, hairless, mostly with 2 basal glands; lower surface often with marginal gland dots; lateral veins 4-8 pairs; leaf-stalk hairless, about 5 mm long. Mericarps are mostly hairless; sometimes sparsely white hairy; middle wing oblong, tip rounded or lobed, 3-4.5 by 0.7-1.2 cm; lateral wings 1.5-2.2 by 0.6-1 cm. Thai Helicopter Flower is found in Thailand and Vietnam, near the beaches, in dry evergreen forests, at altitudes up to 100 m.