Kerria japonica 'Pleniflora'
This plant is a tough-but-graceful, spring-flowering, deciduous shrub. This particular double-flowered cultivar features rounded, pom-pom-like, yellow flowers (to 2” diameter). It typically grows taller (to 8-10’) and more upright than the species. It blooms profusely in the spring. This variety has stalks with side branches and many more pale yellow flowers than my other spotting of a Japanese rose. When I planted it about 8 years ago, it was a small single stem and now that has grown into a shrub about 9 feet tall and spreading out about 12 feet.
This plant is native to certain mountainous areas of China and Japan. Seen in my yard.