Luzula arcuata is a species of flowering plant in the rush family Juncaceae with the modern common name curved wood-rush (formerly curved mountain hair-rush).

[1] The plant is native to mountains of northern Europe, north-western and north-eastern Asia and north-western North America.

The longer flower stalks droop, curving downwards.

[3]: 941 It has a very local distribution, confined to open ground and mountain summit plateaux above 1,250 metres that are sufficiently exposed to be kept snow-free.

[2][3] Its native distribution includes Iceland, Svalbard, northern Norway and Scottish mountains and mountains of Western North America and the Kamchatka peninsula.