yellow, 1/4", borne on pendulous racemes and up to 20 flowers per raceme
simple, alternate, dark green changing to red in the fall.
covered with spines
suckers from the roots, can form colonies.
Reaches around 4-6 feet by equal spread.
Can be sheared to maintain shape and size.
Native to Korea and introduced in 1905.
There are probably other Barberry that flowers this size or larger, but these are the largest I have seen on a Barberry. I enjoy viewing the ones planted at the Boerner Botanical Gardens in Hales Corners, Wisconsin.
Notes & Reference
#01-Manual of Woody Landscape Plants (Michael Dirr)