⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record kew-345331, with some changes.
Serapias longifolia
is a synonym
of Epipactis thunbergii
This name is a synonym of Epipactis thunbergii .
The record derives from WCSP which reports it as a synonym and as an illegitimate name (record 345331) with original publication details: Fl. Jap. 28 1784.