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DescriptionSubshrubs, shrubs or climbers. Stipules present or 0. Leaves opposite or whorled, bearing 2-4 glands on the margin of the lamina near the base of the lamina or apex of the petiole. Inflorescences umbellate or axillary panicles. Flowers actinomorphic or ± so, bisexual. Sepals 5. Petals 5, usually yellow, shortly unguiculate, not auriculate. Stamens 10; anthers ovate. Styles exceeding the stamens. Ovary 3-4-locular, densely hairy. Fruit a samara bearing a single entire oblique wing.