Denseflower Knotweed

Polygonum glabrum Willd.

Buckwheat family

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

Native Range

  • USA:  Alabama, Arkansas, Delaware, Florida, Georgia, Illinois, Kentucky, Louisiana, Maryland, Mississippi, Missouri, New Jersey, North Carolina, South Carolina, Tennessee, Texas, Virginia
  • MEX:  Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southeast, Mexico Southwest
  • USA+:  Puerto Rico

Regional Native Status: L48 (N), PR (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.