Cotton-grass

Cotton-grass (Eriophorum), a genus of Cyperaceæ, in which the perigone or covering of united bracts, which in this order inclose the ripening ovary, is developed into long silky or cottony hairs, which used to be employed for candlewicks, stuffing pillows, &c. A more recent attempt to employ these as a substitute for cotton has naturally failed, nor is the herbage willingly eaten by sheep or cattle. Two species are common in Britain, and give a characteristic appearance to bogs and wet moors.