From Longman Dictionary of Contemporary Englishsphagnumsphag‧num /ˈsfæɡnəm/ (also sphagnum moss) noun [uncountable] a type of moss (=simple plant) that grows in wet places
Examples from the Corpus
sphagnum• Without the camouflage of pondweed and sphagnum moss he was unrecognizable.• He also advised that seeds be sent in a vegetating condition, packed in layers of damp sphagnum moss.• Dress with hormone powder and wedge open with a pad of damp sphagnum moss.• The ground was covered with soft green sphagnum moss, and the dampness here did not permit the growth of hardwoods.• The carpet of sphagnum was colored in a pleasing mixture of pastel browns, pinks, and yellows.• Certain species of sphagnum and the acid-loving bulbous rush may become abundant. 