⚠ Version 1 of The Plant List has been superseded.
This name record (from Tropicos) is not included in version 1.1 of The Plant List. It is possible the same name is included from a different data source, to check this you can search for Hypopterygium longirostrum in version 1.1 of The Plant List.
This name is a synonym of Hypopterygium tamarisci .
The record derives from Tropicos which reports it as a synonym (record 35129572
) with original publication details: J. Bot. 26: 268 268 1888.