Rhus ambigua

Rhus ambigua, commonly known as Japanese sumac or katsura sumac, is a deciduous shrub native to Japan, Korea, the Kuril Islands, and Sakhalin. This plant thrives in full sun to partial shade and prefers moist soil that can be light (sandy), medium, or heavy (clay). Hardy from zones 6-9, it is valued for its ornamental qualities, featuring small clusters of greenish-white flowers followed by bright red berries. Its distinctive feature includes the attractive, lobed leaves that turn vibrant shades of orange and red in autumn, making it a popular choice for gardens seeking colorful foliage. Rhus ambigua is also appreciated for its utility, as it can be used to produce oil, dye, and lacquer. Introduced into Uzbekistan, this plant has expanded its range beyond its native regions. While not medicinal, it is important to handle the plant with care due to its potential allergenic properties.