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An arborescent shrub, climbing over large trees or walls spines, 3-4 cm long, more or less curved. Leaves ovate-obtuse or shortly acuminate, 6-9 x 5 cm. Flower terminal or axillary, seated on peduncles and more or less gathered into branched panicled inflorescence; bracts purple or rosy-purple, ovate, 2-4.5 cm long.