Also known as sweet red pepper or pimento pepper, the paprika (Capsicum annuum) is larger and much milder than the chili pepper. An herbaceous annual that grows 20 to 60 inches in height, it's sometimes woody on the bottom, with leaves that are dark green on top and lighter underneath. The flowers are white and the fruit starts out green, then turns red, brown, or purple; the red fruit is harvested for paprika.