No, Japanese rose (Kerria japonica) is not an evergreen. It is a deciduous shrub.
This means that the Japanese rose loses its leaves seasonally, typically in the fall or winter, and regrows them in the spring. Evergreen plants, on the other hand, retain their leaves throughout the year. Japanese rose is known for its vibrant yellow flowers and is a popular ornamental plant.
In summary, the defining characteristic of Japanese rose (Kerria japonica) is that it sheds its leaves annually, classifying it as deciduous, not evergreen.