2. Doodie. 1.(n.)an unpleasant word that usually small children use to describe how they don't like someone; just plain creepy when a parent says it. 2.(n.)a nasty brown substance that comes out of your rear and lands in the toilet. 1.child: No I don't want to go into time out! You're such a doodie!.
Yes, moss does begins a very, very large part of its life cycle only on the north side of trees in the US. However, after a very, very long time that the moss has established itself, I'm talking decades here, then the moss will take over the south side too.
Mosses are small, low-growing plants that grow as dense mats in moist places. During the growing season, moisture from snowmelt cannot drain because of the permafrost, causing boggy areas highly suitable for mosses. Mosses produce spores, which can survive the long, harsh winters. Calliergon giganteum is a common moss on the tundra. Sedges