Canadian fleabane is intermediate between a summer and winter annual.
The previous day on a preliminary walk to see where we might go I found blue fleabane and tomato.
In the damper parts fleabane and marsh woundwort can be seen.
Fleabane (Erigeron) - Michaelmas Daisy-like plants of dwarf growth, somewhat alike in general appearance, and having pink or purple flowers with yellow centres.
If you have allergies to ragweed, you may want to avoid products containing plants from the same family such as fleabane.