sphagnum
noun /ˈsfæɡnəm/
/ˈsfæɡnəm/
(also peat moss, Sphagnum moss)
[uncountable]- a type of moss that grows in wet areas, used especially for planting plants in pots, making fertilizer, etc.Word Originmid 18th cent.: modern Latin, from Greek sphagnos, denoting a kind of moss.