Weed Information: Ampelopsis cordata (raccoon-grape)
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Ampelopsis cordata (raccoon-grape)

Family: Vitaceae

Description

Woody vines similar to grapes (they are close relatives). The fruits are initially green, turn orange-pink, and are turquoise at maturity. The bark of the vine is tightly attached which allows the plants to be distinguished from grapes (which have loose shredding bark) at any time of year. The fruits are not edible.

Characteristics

Flower Color
  • Yellow-green
  • Green
Inflorescence Type (How the flowers are arranged on the plant)
  • Cyme (simple or branched)
  • Panicle
Number of Petals
  • 5 petals
Petal Separation
  • Completely free to base
Petal Tip
  • Rounded
Flower Symmetry
  • Flowers regular
Flower Length (Head length in the Asteraceae)
  • 2 mm (.08 inch)
  • 3 mm (.12 inch)
Flower Width (Head width in the Asteraceae)
  • 3 mm (.12 inch)
  • 4 mm (.16 inch)
  • 5 mm (.20 inch)
  • 6 mm (.24 inch)
Number of Sepals
  • sepals lacking
  • 5 sepals
Sepal Separation
  • Completely free to base
Sepal Tip
  • Pointed
  • Rounded
Flower Sex
  • Unisexual (monoecious or dioecious)
  • Bisexual (perfect)
Number of Styles
  • Styles lacking (male flowers only)
  • 1 style
Number of Stamens
  • stamens lacking (female flowers only)
  • 5 stamens
Stamens Attached to the Petals
  • Stamens NOT attached to the petals
Stamens Connate (united)
  • Filaments or anthers NOT united

Carpel Separation
  • Carpels united (or one)
Number of Carpels
  • 0 (male flowers only or plants producing spores)
  • 1 carpel
Ovary Position
  • Halfway (perigynous)
Fruit Type
  • Berry, blue
  • Berry, green
  • Berry, red
  • Berry, yellow\orange\brown
Fruit Length at Maturity
  • 7 mm (.28 inch)
  • 8 mm (.32 inch)
  • 9 mm (.36 inch)
  • 1.0 cm (.40 inch)
Fruit Width at Maturity
  • 7 mm (.28 inch)
  • 8 mm (.32 inch)
  • 9 mm (.36 inch)
  • 1.0 cm (.40 inch)
Burs
  • Fruit or seed NOT bur-like

Leaf Arrangement
  • Alternate
Leaf Type
  • Simple (including lobed leaves)
Stipules
  • Foliaceous < 2 mm (< .08 inch) long
  • Lacking
Tendrils
  • Tendrils present
Venation
  • Palmate
Petiole (leaf stem) Blade Ratio
  • Petiole < 25% total length
  • Petiole 25% - 75% total length
Leaf Length (blade PLUS petiole)
  • 4 - 10 cm (1.60 - 4.0 inches)
  • 1 - 2 dm (4.0 - 8.0 inches)
Leaf Width
  • 4 - 10 cm (1.6 - 4.0 inches)
  • 1 - 2 dm (4.0 - 8.0 inches)
Leaf Shape (simple leaves only)
  • Orbicular (round)
  • Ovate
  • Palmately 3 lobed
Leaf or Leaflet Margin
  • Dentate
Leaf or Leaflet Blade Base
  • Cordate
  • Truncate
Leaf or Leaflet Tip
  • Acuminate (attenuate)
Leaf or Leaflet Blade Surface
  • Glabrous (NO hairs)
  • Pubescent
Succulence
  • Not succulent

Milky Juice
  • Juice NOT milky (watery)
Woodiness
  • Woody
Spines or Thorns
  • Spines or Thorns ABSENT
Aromatic (vegetative structures)
  • Not aromatic
Life Cycle
  • Perennial
Growth Habit (while flowering)
  • Climbing vine
Plant Height at Maturity
  • 1 - 1.5 meters (3.3 - 5.0 feet)
  • 1.5 - 2.0 meters (5.0 - 6.6 feet)
  • 2 - 2.5 meters (6.6 - 8.3 feet)
  • 2.5 - 5 meters (8.3 - 16.6 feet)
  • more than 5.0 meters (16.6 33 feet)
Wind Dissemination
  • Not wind disseminated
Moisture Regime
  • Seasonally saturated
  • Mesic
Chlorophyll
  • Present

Stem Cross Section
  • Round
Flowering Stem Leaves
  • Stem uniformly leafy
Main Stem Branches
  • Main stem branched

Root or Vegetative Propagule
  • Fibrous

US State
  • Alabama
  • Arkansas
  • Connecticut
  • Delaware
  • Florida
  • Georgia
  • Illinois
  • Kansas
  • Kentucky
  • Louisiana
  • Missouri
  • Mississippi
  • North Carolina
  • Ohio
  • South Carolina
  • Tennessee
  • Texas
  • Virginia
  • West Virginia
  • Indiana
  • Maryland
  • Iowa
  • Oklahoma
  • Nebraska

  • Listed as a `Weed` by the Biota of North America Program, 2008 X
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