Categories David Glistening inkcaps in the bole of a twisty willow Post author By David Post date 19 March 2014 Glistening inkcap mushrooms which were growing in the bole of a mature willow with twisty bark. They are quite common, but usually grow in the warmer months of the year. These presumably showed last month thanks to the mildness of the winter. ← Remains of a fern → Twisty willow bark