⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-454582, with some changes.

Cypripedium caudatum var. wallisii (Rchb.f.) A.H.Kent is a synonym of Phragmipedium warszewiczianum (Rchb.f.) Schltr.

This name is a synonym of Phragmipedium warszewiczianum (Rchb.f.) Schltr..

The record derives from WCSP which reports it as a synonym (record 454582) with original publication details: Man. Orchid. Pl. 4: 61 1894.