Curlytop Knotweed

Scientific Name:

Polygonum lapathifolium

Type:

Herbaceous Plant

Habitat:

Swampy thickets

Range:

North America, considered native across the United States lower 48, and invasive in Canada

Status:

No listed status

This species is

NATIVE

to the Truckee Meadows.

Identification:

This broadleaf plant is typically found in wetland habitats across North America. It grows to be 2 to 5 feet in height and is characterized by its smooth stems and typically white or pale rose flowers which bloom from July through October.

Fast Facts:

  • Curlytop knotweed has been used to aid with stomach pain and fevers by the Cherokee Tribe. It has also been used by the Cherokee as a rub to reduce the reaction of poison ivy on the skin. The plant is able to produce a froth similar to soap - which is used to cleanse the wounded area. Chippewa and Iroquois people have also used the plant for medicinal purposes.

  • Curlytop knotweed is a hermaphrodite, both female and male reproductive systems exist on this plant. This makes it easy for the plant to reproduce quickly which is why it is considered invasive in certain areas.

  • This plant is a member of the buckwheat family!

Sources:

Contributor(s):

Bridget Mulkerin (research & content)

Alex Shahbazi (edits & page design)

Last Updated:

June 17, 2021, 6:58:29 PM