About Amblystegium serpens (Hedw.) Schimp.
Amblystegium serpens, commonly called creeping feathermoss or nano moss, is a species of moss. It is a common species in Britain. This moss is pleurocarpous, with ovate to lanceolate leaves that taper to a fine, sharp point. It grows as creeping mats on decaying tree stumps, hedgebanks, and other shaded sites. It can survive underwater, and is used as an aquatic plant in some home aquariums.