Porella is a large, common, and widespread genus of liverworts in order Porellales. It is a member of the family Porellaceae within that order.

The Marchantiophyta are a division of non-vascular land plants commonly referred to as hepatics or liverworts. Like mosses and hornworts, they have a gametophyte-dominant life cycle, in which cells of the plant carry only a single set of genetic information.