hairgrass

== English == === Etymology === From hair +‎ grass. === Noun === hairgrass (countable and uncountable, plural hairgrasses) Any of various grasses thought to resemble hair, including those of genera Aira, Deschampsia, Koeleria, and others. Any of certain species of sedge in the genus Eleocharis. ==== Derived terms ==== Antarctic hairgrass (Deschampsia antarctica) slender hairgrass (Deschampsia elongata) tufted hairgrass (Deschampsia cespitosa)