⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record tro-4105266, with some changes.

Isatis tinctoria var. praecox (Kit. ex Tratt.) Koch. is a synonym of Isatis tinctoria L.

This name is a synonym of Isatis tinctoria L..

The record derives from Tropicos which reports it as a synonym (record 4105266) with original publication details: 1507*ed. 2* 81 81 1843.