Baumea arthrophylla

Baumea arthrophylla is a flowering plant in the sedge family, Cyperaceae that is native to Western Australia.
The grass-like plant is rhizomatous and perennial, with a tufted habit. It typically grows to a height of . It blooms between September and November producing brown flowers.
It is found in winter wet depressions and around swamps and lakes along coastal areas in the Peel, South West, Great Southern and Goldfields-Esperance where it grows in damp to wet peaty-sand soils.