An official website of the United States government.
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.
Family: Betulaceae
[Betula alba L., moreBetula alba var. urticifolia Loudon, Betula ambigua Hampe ex Rchb., Betula carpatica Waldst. & Kit. ex Willd., Betula pubescens var. carpatica (Waldst. & Kit. ex Willd.) Wimm. & Grab., Betula urticifolia (Loudon) Regel] |
|