👉 Roella is a type of flowering plant that belongs to the family Rosaceae, native to Europe, North America, and Asia. It has four primary parts - the stem, flowers, seeds, and wood. The leaves are usually alternate or oblique, with long petioles and smooth surfaces. Roellas have a variety of colors including white, pink, purple, and black. Their flowers are typically arranged in clusters, often with five to seven petals each.