1 named feature carries the IAU descriptor Planitia — a low plain on The Moon, out of 83 in the mapped Solar System.
The IAU assigns each feature class on each world a naming theme. Across the 1 planitiae with a recorded origin, one category covers them all, led by Latin.
Every one has its own page, on the surface it sits on.
The same descriptor is used on 8 other worlds, for 82 more features.