whitebeam

English Wikipedia has an article on:

whitebeam

Wikipedia

Wikispecies has information on:

Sorbus subg. Aria

Wikispecies

From Middle English witbeam, equivalent to white +‎ beam (“tree”) – see Old English bēam (“tree”). In the name, white refers to the color of the leaves, when emergent and later the undersides.

• (UK) IPA^(key): /ˈwaɪtˌbiːm/
• (US) IPA^(key): /ˈwaɪtˌbim/

whitebeam (plural whitebeams)

1. Any of various deciduous trees of the genus Sorbus subg. Aria (now Aria edulis), native to Eurasia, especially common whitebeam.