Coefficient of Conservatism:
Coefficient of Wetness:
A. A. Reznicek
Marshes and wet shores, sedge meadows and edges of tamarack swamps, stream and river banks, wet hollows or openings in mixed forests. Especially characteristic of cold, springy, seepy habitats, either shaded or sunny.
This is probably our tallest native herbaceous plant, frequently attaining a height of 2–3 m, with hollow purple-red stems as thick as 3–4 cm.