⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-2858811, with some changes.

Hypericum quadrangulum var. patulum Boenn. is a synonym of Hypericum tetrapterum Fr.

This name is a synonym of Hypericum tetrapterum Fr..

The record derives from WCSP (in review) which reports it as a synonym with original publication details: Prodr. Fl. Monast. Westphal. 227 1824.