Weed Description: 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
in the southeastern United States.
Seedling: Cotyledons are rounded with
slight indentations and resemble those of a mustard. Cotyledons are without hairs.
Leaves: Occur on petioles that are
alternately arranged along the stem. Leaves are approximately 1 1/4 to 4 1/2 inches
long by 3/4 to 3 inches wide. Hairs occur on the margins and only occasionally on
the leaf surfaces. Leaves are ovate to elliptic in outline.
Flowers: Many light blue
flowers occur in clusters with many bracts below. Individual flowers are
approximately 1/2 to 3/4 inch in width.
Identifying Characteristics: A
trailing or climbing vine with ovate to elliptic leaves and many light blue flowers.
These characteristics help to distinguish smallflower morningglory from most other
weeds as well as other morningglories.