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Mulberryweed Fatoua villosa

Other Common Name(s):

Previously known as:

  • Urtica villosa
Phonetic Spelling
FAT-oo-uh vil-OH-suh
Description

Mulberryweed, in the Moraceae family, is an erect, branched summer annual, resembling a mulberry seedling, except stems and leaves are hairy (stems of mulberry saplings are not hairy). Leaves are alternate, and roughly triangular in outline with toothed margins. Flowers are in feathery clusters in the leaf axils. Flower clusters are purple when young, fading to dark brown with age. Plants flower from late spring through early fall, then die after frost. Seeds are forcefully expelled at least 4 feet. Seedlings may flower and fruit within 12 days of reaching the 2-leaf growth stage. Seeds germinate from early spring through late fall, resulting in many generations per year. Consequently, although well managed by certain preemergence herbicides, populations may continue to build in the absence of aggressive sanitation programs.  Herbicide efficacy rankings for this species are based on limited experimental data.

See this plant in the following landscape:
Cultivars / Varieties:
Tags:
#weed#weedy#summer annual weed#warm season weed
 
Cultivars / Varieties:
Tags:
#weed#weedy#summer annual weed#warm season weed
  • Attributes:
    Genus:
    Fatoua
    Species:
    villosa
    Family:
    Moraceae
    Life Cycle:
    Annual
    Recommended Propagation Strategy:
    Seed
    Country Or Region Of Origin:
    Japan, Australia, Eastern Asia
    Distribution:
    Southeastern United States from Maryland to Florida, west to Texas and Oklahoma, north to the Ohio River Valley. Sporadic populations reported in California, Utah, and Washington.
  • Whole Plant Traits:
    Plant Type:
    Annual
    Weed
    Woody Plant Leaf Characteristics:
    Deciduous
    Habit/Form:
    Erect
    Growth Rate:
    Rapid
    Maintenance:
    Low
    Texture:
    Coarse
  • Cultural Conditions:
    Light:
    Dappled Sunlight (Shade through upper canopy all day)
    Deep shade (Less than 2 hours to no direct sunlight)
    Partial Shade (Direct sunlight only part of the day, 2-6 hours)
    Soil Texture:
    Clay
    Loam (Silt)
    Soil pH:
    Acid (<6.0)
    Neutral (6.0-8.0)
    Soil Drainage:
    Moist
    Occasionally Wet
    NC Region:
    Coastal
    Mountains
    Piedmont
    USDA Plant Hardiness Zone:
    5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b, 10a, 10b, 11a
  • Fruit:
    Fruit Color:
    White
    Display/Harvest Time:
    Fall
    Summer
    Fruit Type:
    Achene
    Fruit Length:
    < 1 inch
    Fruit Width:
    < 1 inch
    Fruit Description:
    Fruit is a three-anged achene with explosively expeed seeds.
  • Flowers:
    Flower Color:
    Brown/Copper
    Green
    Purple/Lavender
    White
    Flower Inflorescence:
    Cyme
    Flower Bloom Time:
    Fall
    Spring
    Summer
    Flower Size:
    < 1 inch
    Flower Description:
    Feathery clusters of pistillate and staminate flowers in the same cymes, with cymes subtended by a thin bract.
  • Leaves:
    Woody Plant Leaf Characteristics:
    Deciduous
    Leaf Color:
    Green
    Leaf Feel:
    Velvety
    Leaf Type:
    Simple
    Leaf Arrangement:
    Alternate
    Leaf Shape:
    Cordate
    Deltoid
    Ovate
    Leaf Margin:
    Crenate
    Dentate
    Hairs Present:
    Yes
    Leaf Length:
    1-3 inches
    Leaf Width:
    1-3 inches
    Leaf Description:
    Fatoua villosa has papery triangular to heart-shaped leaves.
  • Stem:
    Stem Color:
    Green
    Stem Is Aromatic:
    No
    Stem Buds:
    Hairy
    Stem Cross Section:
    Round
    Stem Form:
    Straight
    Stem Surface:
    Hairy (pubescent)
    Stem Description:
    Erect hairy stems that can secrete a milky sap when cut.
  • Landscape:
    Problems:
    Weedy