Virginia Tech Weed Identification Guide

Cypressvine Morningglory: Ipomoea quamoclit

Weed Description:  Annual low-climbing or twining vine with leaves that are deeply divided into linear segments.  Found throughout the southeastern United States, Virginia to Missouri and south to Texas.

Seedling:  Stems below the cotyledons (hypocotyls) are stout.  Cotyledons very deeply indented and long, with an angle between the cotyledons greater than 90.

Leaves: Egg-shaped and widest near the base in outline, approximately 1 1/4 to 3 inches long, 1 to 2 inches wide, and divided into linear segments that are 1 mm or less wide.  Leaves are without hairs.

Stems: Branched, trailing or low climbing vines that may reach 6 1/2 feet in length and also without hairs.

Roots:  Fibrous root system.

Flowers:  Deep red to scarlet in color, approximately 1 to 1 1/2 inches long. Flower stalks as long as the subtending leaf, bearing 1-3 flowers.

Fruit:   A capsule without hairs containing reddish-brown seeds.

Identifying Characteristics: Deeply divided leaves and cotyledon leaves with very wide angles between the points is one characteristic that helps to distinguish cypressvine morningglory from all of the other morningglories.