Hairless climber armed with curved spines; leaves oblong-oval, not oblique at base, 5-10 cm long, 2-5 cm wide, pointed to shortly acuminate, occasionally obtuse, entire or crenate-serrate, rounded or heart-shaped at base; flowers in axillary panicled cymes; drupe 10-14 mm long, longer than pedicel. Common names: baboyana, manca montero, uña de gato, zarza blanca.