Dotted Smartweed

Polygonum punctatum Elliott

Buckwheat family

Plant Type
Forb/herb
Life Cycle
Annual, Perennial
Mature Height
4.0 feet
Flower Color
White, Green
Bloom Time
Mid Spring, Late Spring, Early Summer, Mid Summer, Late Summer, Fall

Growing Conditions

Light

Shade Tolerance Intolerant

Water

Water Use Medium

Soil

CaCO3 Tolerance Medium

Ecosystem & Wildlife

Pollinators Native Bees; Bombus; Honey Bees; Beetles, Wasps, Flies; Butterflies; Larval Host (Butterfly); Larval Host (Moth)
Larval Host Argyrogramma verruca, Coleophora shaleriella, Epidemia helloides, Monochroa absconditella

Native Range

  • USA:  Alabama, Arizona, Arkansas, California, Colorado, Connecticut, Delaware, District of Columbia, Florida, Georgia, Idaho, Illinois, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, Missouri, Montana, Nebraska, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode I., South Carolina, South Dakota, Tennessee, Texas, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming
  • CAN:  British Columbia, Manitoba, New Brunswick, Nova Scotia, Ontario, Prince Edward I., Québec, Saskatchewan
  • MEX:  Mexico Central, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest
  • USA+:  Puerto Rico

Regional Native Status: L48 (N), HI (I), PR (N), CAN (N)

State-level native status is based on data available through Plants of the World Online. Regional Native Status comes from the USDA Plants Database. For more detailed native status information, please refer to BONAP.