Arrowleaf clover is a cool-season annual. Each leaf, as is typical for clovers, has three leaflets. Leaves and stems are generally smooth although sparse short hairs are sometimes noticeable.
Seeds are about half the size of alfalfa seed and twice the size of white clover seeds.
Arrowleaf clover normally remains fairly leafy if grazed or hayed. The hollow stems can attain lengths of 4 feet or more, usually falling over and becoming intertwined, if not grazed. In late spring, clusters of white flowers with a pink or light purple tinge begin to develop and become over 3 inches long. Growth slows in June, and plants begin to die by mid July. Arrowleaf clover is most productive in eastern Oklahoma but can contribute to pasture yield and quality throughout the state.