Sunflowers (Helianthus annuus) are annual plants native to the Americas, that possess a large inflorescence (flowering head) What is usually called the flower is actually a head (formally composite flower) of numerous florets (small flowers) crowded together. The outer florets are the sterile ray florets and can be yellow, maroon, orange, or other colors. The florets inside the circular head are calleddisc […] read more