eriophorum
noun
er·i·oph·o·rum
| \ ˌerēˈäfərəm\
Definition of eriophorum
1
capitalized
: a genus of bog sedges (family Cyperaceae) characterized by cottony masses of spikelets, the perianth consisting of soft bristles
2
plural -s
: any plant of the genus Eriophorum
— called also cotton grass
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