Kebnat
PLANTS

Ragweed

Ambrosia artemisiifolia

Plants
ToxicIntroducedHerbAnnual
Ragweed, photo 1 of 5
Ragweed, In flower
Ragweed, In fruit

Toxic. Annual herbaceous plant. Introduced to Québec. Grows in fields and near water.

There are 6,596 observations of Ragweed in Québec, mostly in Estrie, Capitale-Nationale and Montréal, and it has been reported in 16 of the 17 regions. They peak from July to September and become rare from October to June.

Through the year

JFMAMJJASOND

Where to see it

  1. Estrie2,648
  2. Capitale-Nationale1,742
  3. Montréal665
  4. Montérégie443
  5. Laurentides216
  6. Outaouais189
  7. Lanaudière188
  8. Chaudière-Appalaches140
  9. Mauricie97
  10. Centre-du-Québec86
  11. Laval66
  12. Saguenay–Lac-Saint-Jean51
  13. Bas-Saint-Laurent29
  14. Côte-Nord21
  15. Abitibi-Témiscamingue12
  16. Gaspésie–Îles-de-la-Madeleine3

Habitat

FieldsHubert Figuière
Water’s edgepeupleloup
ShorelinePaulparadis
Towns and gardensAlain Rouiller

Similar species

Perennial ragweedAmbrosia psilostachya
MugwortArtemisia vulgaris
Giant ragweedAmbrosia trifida
TOXIC
Sweet sagewortArtemisia annua
Queen Anne's laceDaucus carota
TOXIC
Staghorn sumacRhus typhina
AbsinthiumArtemisia absinthium
DEADLY
TansyTanacetum vulgare
DEADLY
Poison-hemlockConium maculatum
Rattlesnake fernBotrypus virginianus
FlixweedDescurainia sophia
Narrowleaf paleseedLeucospora multifida