The holly has alternate glossy leaves, typically with a spiny toothed or serrated leaf margin. It has four small petal flowers from greenish to white in color. Pollination is done by bees or other insects. The fruit is a berry, usually red to brown but rarely green or yellow which ripens in winter. Offers a pleasant color contrast with the color of the foliage. The fruits are a very important food source for birds and other wild life and in winter the Ilex is an important source of food and shelter.