Name: Japanese Barberry (Berberis thunbergii)
Other names: Thunberg's barberry, or red barberry
Clades: Angiosperms, Eudicots
Description: B. thunbergii has deeply grooved, brown, spiny branches with a single (occasionally tridentine) spine (actually a highly modified leaf) at each shoot node. The leaves are green to blue-green (reddish or purple in some horticultural variants), very small, spatula to oval shaped, 12–24 mm long and 3–15 mm broad; they are produced in clusters of 2–6 on a dwarf shoot in the axil of each spine. The flowers are pale yellow, 5–8 mm diameter, produced in drooping 1–1.5 cm long umbrella-shaped clusters of 2–5; flowering is from mid spring to early summer. The edible fruit is a glossy bright red to orange-red, ovoid berry 7–10 mm long and 4–7 mm broad, containing a single seed. They mature during late summer and fall and persist through the winter.
Distribution: Native to Japan and eastern Asia, though widely naturalized in China and in North America.
Invasive Nature: In recent years, Berberis thunbergii has been recognized as an invasive species in many parts of the eastern United States. The Plant Conservation Alliance's Alien Plant Working Group lists it among its "Least Wanted". Japanese barberry is prohibited from being a seed contaminant in Michigan and banned from sale in Massachusetts.
Fun fact: In the fall months, the Japanese Barberry creates a showy display of red, purple or orange hued leaves, which drop and are replaced by ornamental red berries during the winter season.
Dymadex's entries on plants, living organism of the kind exemplified by trees, shrubs, herbs, grasses, ferns, and mosses.
Hello \(^.^)/ Thank you for Visiting. Please check these out too: