So the purple-leaf barberry actually has a flower name too. Do you know what it is?

Berberidaceae, Berberis

Red-leaf barberry, Latin scientific name: F.atropuTpurea

Native to Japan, southern Northeast China, North China and the Qinling Mountains; at present it is cultivated in major cities across China, and it is a very good ornamental garden shrub.

Purple-leaf barberry is a deciduous shrub with clustered branches and leaves. The young branches are purplish red, while the old branches are grayish brown or purplish brown; the stem epidermis has thorns and grooves. The leaves are relatively small and obovate, slightly lighter in color on the lower surface, clustered on short branches, and brilliantly colored. The flowers are solitary or in short racemes of 2 to 5, with yellow petals and red streaks at the edges. It generally blooms in April, and the fruit ripening period is September to October, with red oval fruits.

Purple-leaf barberry is very adaptable. It likes light but also tolerates partial shade; in environments with slightly poor light or when plant density is too high, some leaves will turn green again. It likes a cool and humid environment and does not tolerate waterlogging. Purple-leaf barberry is cold-resistant, but is not afraid of hot, high temperatures. It sprouts and tillers strongly, tolerates pruning, and can adapt to all kinds of soil, growing even better in fertile, deep, well-drained soil.

Purple-leaf barberry blooms with yellow flowers in spring and bears red fruits in autumn. It is an ornamental flowering tree or shrub excellent in leaves, flowers and fruits. In gardens it is often combined with evergreen trees for block-color arrangements, and it is very common in northern cities, generally planted in clumps at road corners, used as edging for large flower beds, or planted in symmetrical spherical shapes, or dotted among rocks and beside ponds.