Schoenus calcatus is a species of Cyperaceae endemic to Western Australia.[1]
S. calcatus is a small cushion-forming perennial. The leaves are spirally arranged and have both a short blade and a short sheath.
Schoenus calcatus was first described in 1997 by Karen Wilson.[2] There are no synonyms. The specific epithet calcatus, is derived from the Latin verb,, 'to tread upon' or 'walk over' and refers to a potential threat to the species.