⚠ Version 1 of The Plant List has been superseded.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 Piper caeruleifolium in version 1.1 of The Plant List.
This name is a synonym of Piper aequale .
The record derives from Tropicos which reports it as a synonym (record 25003045
) with original publication details: Contr. U.S. Natl. Herb. 26(4): 145 145 1929.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:197464-2
.