IPM1007, Revised November 2009
Winter annual broadleaf
A winter annual weed primarily of agronomic crops found throughout the United States. Seedlings have oblong cotyledons and with opposite true leaves. Lower leaves are opposite, occur on petioles, and are linear to ovate in outline with toothed margins. Upper leaves are alternate, without petioles, smaller and much more linear in outline with entire margins. Flowers are very small and occur in the upper leaf axils of the flowering stems. Individual flowers consist of four white petals. The fruit is a triangular to heart-shaped capsule that contains many small seeds.
IPM1007, revised November 2009
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