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Loughmiller, Campbell and Lynn
Polygonum lapathifolium L.
Curlytop knotweed, Curl-top smartweed, Pale smartweed
USDA Symbol: pola4
USDA Native Status: Native to U.S.
Polygonum lapathifolium has arching, white or pale rose flower spikes and usually smooth stems.
Plant CharacteristicsDuration: Annual Habit: Herb Fruit: Size Class:
Bloom InformationBloom Color: White , Pink , Purple
Bloom Time: Jul , Aug , Sep , Oct
AK , AL , AR , AZ , CA , CO , CT , DC , DE , FL , GA , IA , ID , IL , IN , KS , KY , LA , MA , MD , ME , MI , MN , MO , MS , MT , NC , ND , NE , NH , NJ , NM , NV , NY , OH , OK , OR , PA , RI , SC , SD , TN , TX , UT , VA , VT , WA , WI , WV , WY Canada: NB
, PE USDA Native Status: L48(N), AK(I), CAN(I),
From the National Organizations Directory
According to the species list provided by Affiliate Organizations, this plant is either on display or available from the following:
Native Seed Network
- Corvallis, OR
Recommended Species Lists
Find native plant species by state. Each list contains commercially available species suitable for gardens and planned landscapes. Once you have selected a collection, you can browse the collection or search within it using the combination search.
View Recommended Species page
Record Modified: 2012-08-21
Research By: TWC Staff