Synonyms for Silky Willow (same or very similar meaning)
WordNet sense 1 (small shrubby tree of western North America (Alaska to Oregon)):
Sitka willow, Salix sitchensisWordNet sense 2 (North American willow with greyish silky pubescent leaves that usually blacken in drying):
silver willow, Salix alba sericea, Salix sericeaFrom the ODE community, based on WordNetadd/edit