Betula verrucosa

Betula verrucosa

(bĕch′oo-lă, bĕ′tū-lă vĕ-roo-kō′să) [L. “rough birch”] The scientific name for the European white birch tree. European white birch pollen, abbreviated Bet by the World Health Organization, contains allergens that cause allergies in the spring in the northern hemisphere.