Virginia Tech Weed Identification Guide

Honeyvine Milkweed: Ampelamus albidus

Weed Description:  A perennial with slender, twining stems that may reach 10 ft in length.  Found throughout the southeastern United States.  Although the name implies a secretion of milky sap as in other milkweed species (Asclepias spp.), this does not occur in the leaves or stems of honeyvine milkweed.
Leaves:  Opposite, entire, heart-shaped, 3-7 inches long, 1.5-5 inches wide.  Leaves do not have hairs and occur on petioles that are 1-4 inches long.  Leaf surfaces have conspicuous white veins that arise from a common point (palmate venation).
Roots:  Clustered and fibrous.

Stems:  Slender, without hairs, twining to 10 ft long.

Fruit:  A smooth, angled follicle that is 3.5–5.5 inches long, 1-2.5 inches wide.
Flowers:  Small (2-3 mm broad), white, numerous, and occur on flower stalks that arise between stems and leaves (axillary).
Identifying Characteristics:  A perennial twining vine with opposite leaves and relatively large fruit (follicle).   This weed is often incorrectly identified as a morningglory (Ipomoea spp.) or Field Bindweed (Convolvulus arvensis).   However, the prominent white veins distinguishes this weed from any of the morningglories, and the heart-shaped leaf distinguishes this weed from field bindweed.