WILD CUCUMBER, Echinocystis lobata (Michx.) T. and G. 1, plant, showing leaves and flower clusters; 2, flower; 3, fruit and seed. Annual, reproducing by seed. Stems vinelike, branched, nearly smooth, except that they are grooved and are sometimes hairy at nodes or joints. Vine may extend 15 to 25 feet (4.5 to 7.5 m). Leaves alternate, usually with 5 to 7 sharply pointed lobes, similar in appearance to a cultivated-cucumber leaf. Flowers light yellowish-white, in clusters. Male and female flowers separate but often borne together. Seed pod a pulpy fruit covered with sharp spines, containing 4 seeds. Seeds brown or black, spindle-shaped, flattened, about 3/4 inch (1.9 cm) long. Found mainly in some river bottom areas, covering corn and soybeans and making harvest difficult. Occasionally found in fence rows and thickets, especially in low areas.