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Voucher: Kostadinov 130, (URV)
Brief description: A shrub to 6 m, native of Southeastern Europe. Leaves are ovate, simple, opposite, entire, pinnately veined, silky beneath, margins entire. Flowers are perfect, fragrant, in dense panicles; the corolla is lilac or white. Fruits are a bilocular capsule.
Campus data: Rarely cultivated on campus. Three shrubs encountered in one place.