⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-50217363, and has not been changed.

Howardia raja (Mart. & Zucc.) Klotzsch is a synonym of Aristolochia raja Mart.

This name is a synonym of Aristolochia raja Mart..

The record derives from Tropicos which reports it as a synonym (record 50217363) with original publication details: Monatsber. Konigl. Preuss. Akad. Wiss. Berlin 1859: 615, t. 2, f. 17 615 1859.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:93745-1.