Moss Myths

I regret having to break it to those who are navigationally challenged, but moss does not grow only on the north side of a tree.  It is found there predominantly because that side is generally more shady (in the northern hemisphere, that is).

And, despite having names that include the word “moss,” plants such as Spanish Moss — an epiphyte, Reindeer Moss — a lichen, Club Moss — a lycophyte (seedless, vascular plant), Irish Moss — a perennial, and Sea Moss — an algae, are not mosses at all. Mildew, unlike moss, is parasitic and requires a host.