Zelkova is a genus of six species of deciduous trees in the elm family Ulmaceae, native to southern Europe, and southwest and eastern Asia. They vary in size from shrubs (Z.

1. Zelkova trees are often planted in urban areas because they can withstand pollution and are aesthetically pleasing.
   日本光葉櫸樹(shù)是盆栽栽培的熱門(mén)樹(shù)種，因其堅(jiān)韌的枝條和優(yōu)雅的外形。