⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-2682087, with some changes.

Brassica campestris var. quadrivalvis (Hook.f. & Thomson) Duthie & Fuller is a synonym of Brassica napus L.

This name is a synonym of Brassica napus L..

The record derives from WCSP (in review) which reports it as a synonym with original publication details: Field Garden Crops 2: 29 1882.