⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-142195, with some changes.

Orchis agastachys Fisch. ex Lindl. is a synonym of Piperia dilatata (Pursh) Szlach. & Rutk.

This name is a synonym of Piperia dilatata (Pursh) Szlach. & Rutk..

The record derives from WCSP which reports it as a synonym (record 142195) with original publication details: Gen. Sp. Orchid. Pl. 287 1835.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:648334-1.