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Weed Identification

honeyvine milkweed

Family

Asclepiadaceae

Scientific Name

Ampelamus albidus

Other Common Names:

climbing milkweed
sandvine
honeyvine

Synonyms (former Scientific Names):

Gonolobus laevis
Ampelamus laevis
Cynanchum laeve

Habit

forb/herb, vine

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).

Identifying Characteristics

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. 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

Flower Seed Head

Small (2-3 mm broad), white, numerous, and occur on flower stalks that arise between stems and leaves (axillary).

Seed Fruit

A smooth, angled follicle that is 3.5-5.5 inches long, 1-2.5 inches wide.

Where Found

Found throughout the southeastern United States.

Growth Habit

vine

Thorns or Spines

not present

Approximate Flower Diameter

pencil

Dominant Flower Color

Varies: 
white
yellow

Flower Symmetry

radial symmetery

Leaf Hairs

no hairs

Leaf Shape

Varies: 
lance
triangle

Leaf Arrangement

opposite

Leaf Margin

entire

Leaf Structure

simple

Leaf Stalk

longer than leaf

Stem Hairs

no hairs

Stem Cross Section

round or oval

Milky Sap

not present

Root Structure

Varies: 
fibrous
stolons present

Life Cycle

perennial

Ochrea

not present

Plant Type

Vine