⚠ Version 1 of The Plant List has been superseded.

This name is in version 1.1 of The Plant List, record kew-388854, with some changes.

Agropyron semicostatum var. thomsonii Hook.f. is a synonym of Elymus semicostatus (Nees ex Steud.) Melderis

This name is a synonym of Elymus semicostatus (Nees ex Steud.) Melderis.

The record derives from WCSP which reports it as a synonym (record 388854) with original publication details: Fl. Brit. India 7: 369 1896.