Scientific NameBerberis thunbergii
Synonyms (former Scientific Names):
Berberis thunbergii var. atropurpurea
Shrub with thorns from Japan that can invade pastures, forests, and roadsides.
Spatulate to obovate (oval that taper at the base) leaves that are alternate. Leaves taper towards the petioles and are 0.5 to 2.5 cm long and 5-15 mm wide.
Shrub with red berries and leaves that taper towards the base. Has mostly simple thorns but sometimes thorns that branch.
Flower Seed Head
Flowers are solitary or occur in small clusters. They are red and about 1 cm wide.
Red berries that are about 1 cm wide.
Found in roadsides, pastures, woodlands, and thickets.
woody bush or tree
Thorns or Spines
Approximate Flower Diameter
Dominant Flower Color
shorter than leaf
Stem Cross Section
round or oval