A rose is a plant that is a member of the genus Rosa, which consists of some 100 species of perennial shrubs in the rose family. Many roses are cultivated for their beautiful flowers, which range in color from white through various tones of yellow and pink to dark crimson and maroon. Their stems are usually prickly and their glossy, green leaves have toothed edges. Rose flowers vary in size and shape. They burst with colors ranging from pastel pink, peach, and cream, to vibrant yellow, orange, and red. Many roses are fragrant, and some produce berry-like fruits called hips.