1.
[syn: sphagnum, sphagnum moss, peat moss, bog moss]
The Collaborative International Dictionary of English v.0.48:
Sphagnum \Sphag"num\, n. [NL., fr/ Gr. ??? a kind of moss.]
(Bot.)
A genus of mosses having white leaves slightly tinged with
red or green and found growing in marshy places; bog moss;
peat moss.
[1913 Webster]
WordNet (r) 3.0 (2006):
sphagnum
n 1: any of various pale or ashy mosses of the genus Sphagnum
whose decomposed remains form peat [syn: sphagnum,
sphagnum moss, peat moss, bog moss]