Plains coreopsis

Coreopsis tinctoria

A slender, 1-2 ft. annual with pinnately-compound foliage, tickseed is known for its small but abundant yellow flowers, painted maroon near the center. Numerous smooth, slightly angled branches bearing showy, daisy-like flower heads with yellow rays surrounding a reddish-purple central disk. The yellow petals are notch-tipped. Flower heads occur on long stalks from the multi-branching stems.