Elymus philadelphicus Linnaeus, Centuria I Plantarum: 6. 1755, nom. illeg.

"Habitat in Pensylvania. Kalm." RCN: 698.

Replaced synonym: Elymus canadensis L. (1753) .

Lectotype (Hitchcock in Contr. U. S. Natl. Herb. 12: 124. 1908): Herb. Linn. No. 100.3 (LINN; iso- US, fragm.) .

Current name: Elymus canadensis L. ( Poaceae).