Berberis can be deciduous or evergreen shrubs with spiny shoots bearing simple, often spine-toothed leaves, and small yellow or orange flowers in axillary clusters or racemes, followed by small berries
'Superba' is a vigorous spiny medium-sized deciduous shrub with lax, arching branches. Leaves broadly oval, deep red-purple, brighter red in autumn. Flowers small, light yellow, berries bright red