nettle tree
noun
1- an Old World tree related to the hackberries, with a straight silvery-grey trunk and rough, toothed nettle-like leaves朴树。
1.1
- Genus Celtis, family Ulmaceae: several species, in particular C. australis, which is a popular street and shade tree in Mediterranean countries.朴属, 榆科：数种, 尤指南欧朴, 地中海国家普遍将其种植于路边以遮阴。