Coefficient of Conservatism:
Coefficient of Wetness:
NORTHERN WILD COMFREY
Borders, openings, and clearings or under dense shade in coniferous or mixed forests (fir, cedar, spruce, pine, birch, aspen, occasionally beech and maple), especially in sandy or rocky soil.
The upper leaves are strongly cordate-clasping, although the lower and basal ones are petiolate. While the species is easily told at a distance from C. officinale, it is much closer to the southern wild comfrey, C. virginianum L. and sometimes is considered only a variety or subspecies of the more southern plant, which has slightly larger nutlets, calyx, and flowers.