Berberis thunbergii ( Yellow Japanese Barberry )
Deciduous shrub attain up to 4′ tall and about 4′ wide . Branches are svelte and burry . Roundly oval leaf are bright yellow . Overall form is outflow - alike , becoming panoptic than tall with age . Small , yellow flowers borne beneath leaves , from April to May , not showy . Bright red berries can be found along stem from late tumble through wintertime . Ironically , this is never really considered a feature of this industrial plant ....