Oxalis is a summer annual that can be perennial in some areas. It grows on weak stems that branch at the base and may root at the nodes. Leaves are arranged alternately along the stem, long-petiolated, and divided into 3 heart-shaped leaflets. Leaf margins are smooth but fringed with hairs. Stems are green to pink and grow more prostrate than erect, although they can reach up to 20 inches in height. The oxalis flower grows in clusters and is small and yellow with five petals. Cylindrical seed pods resembling a capsule range from 1/2 to 1 inch in length and have flat sides. These pods burst at maturity and may spread seeds several feet.
