Curlytop Knotweed

Polygonum lapathifolium L. - Buckwheat family

Size

Mature Height: Up to around 3.0 feet

Plant Type: Forb/herb

Features

Flower Color: White, Pink, Green

Bloom Time: Mid Spring, Late Spring, Early Summer, Mid Summer, Late Summer, Fall

Ecosystem Interactions

Pollinators: Native Bees; Bombus; Honey Bees; Beetles, Wasps, Flies; Butterflies; Larval Host (Butterfly); Larval Host (Moth)

Larval Species depending on Curlytop Knotweed: Epidemia helloides, Simyra henrici

Native Range

  • USA:  Alabama, Alaska, 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, Nevada, New Hampshire, New Jersey, New Mexico, New York, North Carolina, North Dakota, Ohio, Oklahoma, Oregon, Pennsylvania, Rhode I., South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, Washington, West Virginia, Wisconsin, Wyoming
  • CAN:  Alberta, Newfoundland, Manitoba, New Brunswick, Newfoundland, Northwest Territorie, Ontario, Prince Edward I., Québec, Saskatchewan, Yukon
  • DEN:  Greenland
  • MEX:  Mexico Central, Mexico Southwest
Regional Native Status: L48 (N), AK (I), CAN (I), GL (I), SPM (I)

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.