E. cannabinum: stems erect, 3-4 feet high; leaves divided into three broadly lanceolate, coarsely-toothed lobes, slightly downy; flower-heads numerous, in compact terminal corymbs, pale reddish-purple; involucres cylindrical, of few unequal bracts, usually containing five florets. - Hemp Agrimony. - -Banks and moist bushy places. Fl. July, August.