⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-25002638, and has not been changed.

Piper nigrum var. macrostachyum C. DC. is a synonym of Piper rhytidocarpum Hook. f.

This name is a synonym of Piper rhytidocarpum Hook. f..

The record derives from Tropicos which reports it as a synonym (record 25002638) with original publication details: Prodr. 16(1): 363 363 1869.