Kebnat
PLANTS

Curlytop knotweed

Persicaria lapathifolia

Plants
NativeHerbAnnual
Curlytop knotweed, In flower
Curlytop knotweed, In fruit
Curlytop knotweed, Flower buds

Annual herbaceous plant. Grows near water.

There are 535 observations of Curlytop knotweed in Québec, mostly in Montérégie, Montréal and Capitale-Nationale, and it has been reported in every region. They peak in August and September and become rare from November to June.

Through the year

JFMAMJJASOND

Where to see it

  1. Montérégie124
  2. Montréal90
  3. Capitale-Nationale66
  4. Outaouais34
  5. Laurentides31
  6. Abitibi-Témiscamingue29
  7. Estrie27
  8. Lanaudière25
  9. Chaudière-Appalaches20
  10. Nord-du-Québec15
  11. Centre-du-Québec15
  12. Mauricie15
  13. Côte-Nord12
  14. Laval9
  15. Saguenay–Lac-Saint-Jean9
  16. Bas-Saint-Laurent8
  17. Gaspésie–Îles-de-la-Madeleine6

Habitat

Water’s edgepeupleloup

Similar species

Spotted ladysthumbPersicaria maculosa
Pennsylvania smartweedPersicaria pensylvanica
Swamp smartweedPersicaria hydropiperoides
Water knotweedPersicaria amphibia
Oriental lady's thumbPersicaria longiseta
Water-pepperPersicaria hydropiper
Dotted smartweedPersicaria punctata
JumpseedPersicaria virginiana
Kiss me over the garden gatePersicaria orientalis
TOXIC
PokeberryPhytolacca americana
Pygmy smartweedPersicaria minor
Stout smartweedPersicaria robustior