Alnus incana ssp. rugosa
Shrub or small, multi-stemmed tree with dull dark green toothed
oval leaves. White lenticels in speckles on stems. Full sun
to partial shade, tolerates wet soil. Native to RI. 15-25'
PLANTS Database / Britton, N.L., and A. Brown. 1913. Illustrated
flora of the northern states and Canada. Vol. 1: 613.