Salix discolor Published March 29, 2012 at 820 × 1090 in Harbingers of Spring ← Previous Next → Of all the harbingers of spring, the native Salix discolor is for me the most poignant – this pussy willow resides in a school yard in Northwest Calgary and is covered in these sweet little fluff balls. Photo: Pat Gaviller Post a comment or leave a trackback: Trackback URL.