sphagnum

noun

Etymology: Borrowed from translingual Sphagnum, which is from Ancient Greek σφάγνος (sphágnos).

1. Any of various widely distributed mosses, of genus Sphagnum, which slowly decompose to form peat.

   “[T]he ground up here is waterlogged and riddled with potholes, holes beneath the spongy coral fern, hidden holes throughout the sphagnum.”