Kebnat
PLANTS

Large-leaf pondweed

Potamogeton amplifolius

Plants
NativeHerbPerennialGreen flowers
Large-leaf pondweed, photo 1 of 5
Large-leaf pondweed, In flower
Large-leaf pondweed, In fruit

Perennial herbaceous plant. Grows in marshes.

There are 113 observations of Large-leaf pondweed in Québec, mostly in Outaouais, Estrie and Laurentides, and it has been reported in 14 of the 17 regions. They peak in July and August and become rare from October to May.

Through the year

JFMAMJJASOND

Where to see it

  1. Outaouais33
  2. Estrie23
  3. Laurentides17
  4. Chaudière-Appalaches7
  5. Bas-Saint-Laurent6
  6. Saguenay–Lac-Saint-Jean5
  7. Abitibi-Témiscamingue5
  8. Lanaudière4
  9. Gaspésie–Îles-de-la-Madeleine3
  10. Montérégie3
  11. Capitale-Nationale3
  12. Centre-du-Québec2
  13. Nord-du-Québec1
  14. Montréal1

Habitat

MarshAlexander Rumpel

Similar species

Broadleaf pondweedPotamogeton natans
Illinois pondweedPotamogeton illinoensis
Longleaf pondweedPotamogeton nodosus
Richardson's pondweedPotamogeton richardsonii
White-stem pondweedPotamogeton praelongus
Curly pondweedPotamogeton crispus
Ribbonleaf pondweedPotamogeton epihydrus
Water knotweedPersicaria amphibia
WatershieldBrasenia schreberi
Varigated yellow pond-lilyNuphar variegata
Alpine pondweedPotamogeton alpinus
Marsh seedboxLudwigia palustris