Weed Information: Broussonetia papyrifera (paper-mulberry)
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Broussonetia papyrifera (paper-mulberry)

Family: Moraceae

Description

Mature fruit a 3/4 inch diameter red, aggregate fruit (like a raspberry). Paper mulberry is often planted as an ornamental and escapes to become weedy in the south.

Characteristics

Flower Color
  • Green
Inflorescence Type (How the flowers are arranged on the plant)
  • Axillary cluster
  • Head
  • Catkin (ament, cone)
Number of Petals
  • 0 (no petals)
Flower Symmetry
  • Flowers regular
Flower Length (Head length in the Asteraceae)
  • 1 mm (.04 inch)
  • 2 mm (.08 inch)
  • 1.0 cm (.40 inch)
  • 1.5 cm (.6 inch)
  • 2.0 cm (.8 inch)
Flower Width (Head width in the Asteraceae)
  • 1 mm (.04 inch)
  • 2 mm (.08 inch)
  • 1.0 cm (.40 inch)
  • 1.5 cm (.60 inch)
  • 2.0 cm (.80 inch)
Number of Sepals
  • 4 sepals
Sepal Separation
  • United at base < 25% length
Sepal Tip
  • Pointed
  • Rounded
Flower Sex
  • Unisexual (monoecious or dioecious)
Number of Styles
  • Styles lacking (male flowers only)
  • 1 style
  • 2 styles
Number of Stamens
  • stamens lacking (female flowers only)
  • 4 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)
  • Carpels separated
Number of Carpels
  • 0 (male flowers only or plants producing spores)
  • 1 carpel
  • 2 carpels
Ovary Position
  • Superior (hypogynous)
  • Halfway (perigynous)
Fruit Type
  • Berry, red
  • Berry, yellow\orange\brown
  • Aggregate
Fruit Length at Maturity
  • 2.0 cm (.80 inch)
  • 2.5 cm (1.0 inch)
  • 3.0 cm (1.2 inches)
Fruit Width at Maturity
  • 2.0 cm (.80 inch)
  • 2.5 cm (1.0 inch)
  • 3.0 cm (1.2 inches)
Burs
  • Fruit or seed NOT bur-like

Leaf Arrangement
  • Alternate
  • Opposite
Leaf Type
  • Simple (including lobed leaves)
Stipules
  • Lacking
Tendrils
  • Tendrils absent
Venation
  • Pinnate
Petiole (leaf stem) Blade Ratio
  • 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)
  • Ovate
  • Palmately 3 lobed
Leaf or Leaflet Margin
  • Crenate
  • Dentate
  • Lobed
Leaf or Leaflet Blade Base
  • Acute (cuneate)
  • Cordate
  • Rounded
Leaf or Leaflet Tip
  • Acuminate (attenuate)
  • Acute
  • Rounded (obtuse)
Leaf or Leaflet Blade Surface
  • Lower leaf surface more hairy
  • Pubescent
  • Scabrous (like sand paper)
Succulence
  • Not succulent

Milky Juice
  • Juice milky
Woodiness
  • Woody
Spines or Thorns
  • Spines or Thorns ABSENT
Aromatic (vegetative structures)
  • Not aromatic
Life Cycle
  • Perennial
Growth Habit (while flowering)
  • Erect, spherical (bushy)
Plant Height at Maturity
  • more than 5.0 meters (16.6 33 feet)
Wind Dissemination
  • Not wind disseminated
Moisture Regime
  • Mesic
Chlorophyll
  • Present

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

Root or Vegetative Propagule
  • Tap Root

US State
  • Alabama
  • Arkansas
  • Connecticut
  • Delaware
  • Florida
  • Georgia
  • Illinois
  • Kansas
  • Kentucky
  • Louisiana
  • Massachusetts
  • Missouri
  • Mississippi
  • North Carolina
  • New Jersey
  • New York
  • Ohio
  • Pennsylvania
  • South Carolina
  • Tennessee
  • Texas
  • Virginia
  • West Virginia
  • Hawaii
  • Indiana
  • Maryland
  • Rhode Island
  • California
  • Oklahoma
Other
  • District of Columbia

  • Listed as a `Weed` by the Biota of North America Program, 2008 X
  • Listed in the WSSA Composite List of Weeds X
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