Salix irrorata, the dewystem willow, blue-stem willow, or sandbar willow, is a species of willow native to the US states of Wyoming, Colorado, Arizona, and New Mexico, and to northern Mexico.[1] In spite of its bluestem willow common name, its stems are red, but a white coat develops that makes them appear bluish. A bushy shrub that prefers moist areas, in a garden setting it needs coppicing to both keep it from growing overlarge and to maintain the attractive bark coloration.[2] It has gained the Royal Horticultural Society's Award of Garden Merit as an ornamental.[3]