Kebnat
PLANTS

Swamp loosestrife

Decodon verticillatus

Plants
NativeShrubPerennialRed flowers
Swamp loosestrife, photo 1 of 5
Swamp loosestrife, In flower
Swamp loosestrife, In fruit
2.4 mHeight

Perennial shrub reaching 2.4 m. Grows near water and in thickets.

There are 113 observations of Swamp loosestrife in Québec, mostly in Montérégie, Outaouais and Estrie, and it has been reported in 8 of the 17 regions. They peak in August and September and become rare from October to May.

Through the year

JFMAMJJASOND

Where to see it

  1. Montérégie55
  2. Outaouais29
  3. Estrie9
  4. Laurentides7
  5. Lanaudière6
  6. Montréal4
  7. Centre-du-Québec2
  8. Mauricie1

Habitat

ThicketsNicholas A. Tonelli
MarshVyacheslav Argenberg
Water’s edgepeupleloup

Similar species

Purple loosestrifeLythrum salicaria
ButtonbushCephalanthus occidentalis
Water knotweedPersicaria amphibia
Tufted loosestrifeLysimachia thyrsiflora
TOXIC
Common milkweedAsclepias syriaca
Swamp milkweedAsclepias incarnata
FireweedChamaenerion angustifolium
Northern bush-honeysuckleDiervilla lonicera
TOXIC
Hemp dogbaneApocynum cannabinum
American water-willowJusticia americana
Digitalis penstemonPenstemon digitalis
Shining willowSalix lucida