Common Yellow Woodsorrel (Plantago lanceolata)
Common yellow woodsorrel is a herbaceous perennial supported by a shallow taproot and sometimes has very short stolons. Stems are hairy and 4 to 10 inches tall. Leaves are alternate and divided into three leaflets. The leaflets are heart-shaped and partly folded. Two to nine flowers are formed together with each being bright yellow with five petals about 3/8 inch long. The fruit is a narrow capsule 1/2 to 1 inch long.
Life Cycle: Short-lived perennial or warm-season annual
What To Look For: Three green heart-shaped leaves, small yellow flowers with five petals
Growth Period: Mid-spring to mid-fall