Woolly Willow

About Woolly Willow in Alberta

Woolly willow, as treated here, is a native Alberta specialty willow anchored to Salix calcicola var. glandulosior, a very low shrub of localized mountain calcareous wetland and riparian habitats. In Alberta it is tied to Banff and Jasper national park settings, wet meadows, floodplains, dwarf birch thickets, and limestone-linked environments rather than to broad province-wide or urban occurrence. For Ancient Roots Alberta, it matters through rarity, habitat specificity, and the conservation value of unusual native mountain willow communities rather than through specimen size or planting history.

Identification: Leaves may persist for more than one year and then become gray-brown. Mature leaves are elliptic to broadly elliptic, nearly round, or narrowly elliptic. Lower surfaces can be glaucous and variably villous to glabrescent, and teeth or glands may be numerous and closely spaced. The species is subtle and often depends on close inspection rather than on a single bold leaf character.

Alberta range and habitat: Current evidence supports a narrow Alberta mountain-park distribution rather than broad province-wide occurrence. The taxon is reported from Alberta riparian habitats in Banff and Jasper national parks, including named river confluences and the Lower Whirlpool River area.