The natural history of the northwoods .
Leaves alternate with glands along the margins of the leaf base or at the petiole apex.
Stems numerous and slender, either branching from the base or with main branches upright and spreading. Height varies considerably, ranging from 3'-20'. Roots a shallow network of rhizomes and a deep-feeding, verticle network. Roots at intervals along the rhizomes. Flowers perfect, borne on leafy twigs of the season.