I always think of Sphagnum as a light-loving plant that grows unshaded in big bogs where it's the dominant plant (dominant as in most numerous and dense, as well as being unshaded). However, today I found it in very deep shade, underneath very dense wetland bushes. Was I the only one who didn't realize there are at least some shade species? I was expecting to find them closer to the water, but there they would have been choked out by even denser purple loosestrife.