Alnus rugosa (Speckled Alder)

Multi-stemmed, quick growing for wet areas and floodplains. Fixes nitrogen. Nice winter interest: catkins and cones. Also known as Alnus incana subsp. rugosa.

Associates: Calamagrostis canadensis (Blue joint grass), Cephalanthus occidentalis (Buttonbush), Cornus obliqua (Blue-Fruited / Silky Dogwood), Onoclea sensibilis (Sensitive Fern), Osmunda regalis (Royal Fern), Populus tremuloides (Quaking Aspen), Rosa palustris (Swamp Rose), Spiraea alba (Meadowsweet), Spiraea tomentosa (Hardhack or Steeple Bush)