What characteristic describes the leaves of Common sunflowers?

The leaves of Common sunflowers are characterized as simple, deltoid, and varying in size. This means that each leaf is a single leaf rather than being divided into smaller leaflets, which is what distinguishes simple leaves from compound ones. The term "deltoid" refers to a triangular shape, which aligns with the distinctive form that sunflower leaves exhibit. Additionally, these leaves can vary significantly in size along the stem, contributing to their overall diversity in appearance. This characteristic is essential for identification, as it aids in visual differentiation from other plant species that may have more uniform leaf shapes or structures. Understanding these distinctive leaf traits is crucial in recognizing common sunflowers in the wild.