cotton grass

(redirected from bog cotton)
Also found in: Dictionary, Thesaurus, Wikipedia.

cotton grass,

common name for sedgessedge,
common name for members of the Cyperaceae, a family of grasslike and rushlike herbs found in all parts of the world, especially in marshes of subarctic and temperate zones.
..... Click the link for more information.
 of the genus Eriophorum.