Mystery from Ives Preserve
A little farther north on the fen path is a small patch of cat-tails. The heads were beginning to break up to spread their seeds. It looked like they were reacting to a good north wind. But it was a windless day. They were all coming apart on their south sides, here and at other places they grow. Because it's their sunny side? I have no idea, but it seems to be a great indicator of direction. Much more consistent than north moss.