Commonly known as Silky Leaved Berry, but I call it posh bramble. Native to Vietnam, this blackberry and raspberry relative has exquisite palmate leaves, finely pleated and with silver undersides. Root hardy, but looks a mess in early spring once it's taken a few frosts. Size wise, expect the canes to arch up to ten feet in the air after a few years in the ground. The fruits are delightfully tasty. Yes, it does wander and sucker. Still well worth it for the foliage.