What kind of plant is Porella and is its moss vitality strong

Porella is a variety of moss. This moss mainly grows in four places: ditch sides, tree trunks, stone walls and earth slopes. The distribution areas are Tibet, Gansu and other places. Its vitality is very strong.
Porella is a large-bodied species among bryophytes, and its color is green or dark green. The leaf cell walls are thin, the trigones are large, the ventral leaves are large, elliptical, and twisted at the base. It mainly clings to stone walls and tree trunks. The leaf tips have 2 to 4 short teeth, are tongue-shaped, and the edges are toothless. So this is also the reason it is called Porella.