Kebnat
PLANTS

Thinleaf sunflower

Helianthus decapetalus

Plants
NativeHerbPerennial
Thinleaf sunflower, photo 1 of 5
Thinleaf sunflower, In flower
Thinleaf sunflower, In fruit
60–200 cmHeight

Perennial herbaceous plant reaching 60–200 cm. Grows near water and in forests.

There are 27 observations of Thinleaf sunflower in Québec, mostly in Montréal, Capitale-Nationale and Centre-du-Québec, and it has been reported in 7 of the 17 regions. They peak in August and September and become rare from October to June.

Through the year

JFMAMJJASOND

Where to see it

  1. Montréal11
  2. Capitale-Nationale7
  3. Centre-du-Québec3
  4. Laurentides2
  5. Outaouais2
  6. Chaudière-Appalaches1
  7. Montérégie1

Habitat

ForestMario Hains
Water’s edgepeupleloup

Similar species

Smooth oxeyeHeliopsis helianthoides
Woodland sunflowerHelianthus divaricatus
Paleleaf woodland sunflowerHelianthus strumosus
Jerusalem artichokeHelianthus tuberosus
Cutleaf coneflowerRudbeckia laciniata
Giant sunflowerHelianthus giganteus
TOXIC
Cup plantSilphium perfoliatum
Black-eyed SusanRudbeckia hirta
SunflowerHelianthus annuus