Celosias come in dozens of fascinating and beautiful varieties. These varieties are generally divided into three types: cockscomb (Celosia cristata), plume (Celosia plumosa), or wheat (Celosia spicata). The most well-known of these, cockscomb, grows arrowhead-shaped clusters of flowers. Plume celosia flowers are delicate and have a feathery look, while wheat celosia grows slender flower heads. The flowers are bright and cheerful, with red, yellow, orange, and pink being the most common colors.