⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-345592, with some changes.

Cyperus orthostachyus var. robustus (Nakai) H.Hara is a synonym of Cyperus orthostachyus Franch. & Sav.

This name is a synonym of Cyperus orthostachyus Franch. & Sav..

The record derives from WCSP which reports it as a synonym (record 345592) with original publication details: J. Jap. Bot. 14: 339 1938.