Whorled tickseed

Perennial herbaceous plant reaching 1 m. Introduced to Québec. Grows in forests.

There are 92 observations of Whorled tickseed in Québec, mostly in Capitale-Nationale, Montérégie and Laurentides, and it has been reported in 13 of the 17 regions. They peak in July and become rare from October to April.