A fast growing annual that grows from 5-10 ft (1.5-3 m) tall on stiff upright stalks.Leaves are long and lance-shaped. Both leaves and stems are typically covered with coarse hairs. There are many different types of wild sunflowers in the US. Some are annuals and some are perennials. Heights vary from 2 to 10 feet. All have daisy-like yellow flowers. Native to the western U. S., Canada, and northern Mexico.