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Voucher: Kostadinov 111, (URV)
Brief description: A shrub to a small tree. Leaves are deeply cordate, roundish, simple, alternate, entire, palmately veined, thick, glabrous, shining above, margins entire. There is a characteristic pulvinus (hinge) on the petiole where it attaches to the leaf blade. Flowers are perfect, purplish-pink, in small clusters from the old wood. Fruits are narrow, acuminate pods.
Campus data: Very rare in the wild on campus, not cultivated. One patch of shrubs encountered.