Illinois Bundleflower seedpod

One to several erect stems grow from the base to 1-3 ft. (sometimes up to 5 ft.) in height. The leaves are twice pinnately compound. Six to 15 pinnae each have 20-30 leaflets. Leaves fold in strong sunlight and when touched. Small, ball-shaped clusters of greenish flowers occur on axillary stalks. An erect plant with ball-like clusters of small, whitish or greenish flowers on tall stalks rising in axils of compound leaves. Flat, leathery, twisted seedpods follow.