peat moss
- any moss which forms peat, esp. sphagnum
- any peat composed of residues of mosses, used chiefly as mulch
- Brit., Dialectal a peat bog
See peat moss in American Heritage Dictionary 4
noun- Any of various mosses of the genus Sphagnum, growing in very wet places.
- The partly carbonized remains of these plants, used as a mulch and plant food.
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