Lepidosperma angustatum is a sedge of the family Cyperaceae that is native to Western Australia. The rhizomatous sedge typically grows to a height of and to about wide. In Western Australia it is found along the coast on steep slopes as two separate populations in the Peel and Great Southern regions where it grows in sandy-clay-loam soils over or around granite. References Plants described in 1810 Flora of Western Australia angustatum Taxa named by Robert Brown (botanist, born 1773)