IPM1007, Revised November 2009
Summer annual broadleaf
An erect summer annual with large white to purple flowers and a distinctive odor. Seedlings have cotyledons that are thick, hairless, long and linear in outline, and with a clearly evident midvein. The stem below the cotyledon (hypocotyl) is initially maroon in color toward the base, eventually becoming maroon throughout. Mature plants have leaves that occur on long stout petioles and are large (3 to 8 inches long, 6 inches wide), ovate, without hairs, and with a few large triangular teeth along the margin. The fruit is a large egg-shaped capsule covered with spines; it splits into four segments when mature.
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