Betula alnus Linnaeus var. incana Linnaeus, Species Plantarum 2: 983. 1753.

"Habitat in Europa." RCN: 7125.

Lectotype (Jonsell & Jarvis in Nordic J. Bot. 14: 153. 1994): Herb. Burser XXIII: 9 (UPS) .

Current name: Alnus incana (L.) Moench ( Betulaceae).