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Practical Weed Science for the Field Scout: Corn and Soybean
Morningglory, smallflower (Jacquemontia tamnifolia)
Summer annual broadleaf
A trailing or climbing summer annual with light blue flowers that may reach 6-1/2 feet in length. Smallflower morningglory is an isolated weed of agronomic crops, nurseries and landscapes. Cotyledons are rounded with slight indentations and resemble those of a mustard seedling. Mature plants have leaves that occur on petioles arranged alternately along the stem. Leaves are ovate in outline, approximately 1-1/4 to 4-1/2 inches long by 3/4 to 3 inches wide. Hairs occur on the leaf margins and only occasionally on the leaf surfaces.
IPM1007, revised November 2009
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