mock orange
noun
1- a bushy shrub of north temperate regions, which is cultivated for its strongly scented white flowers, the perfume of which resembles orange blossom山梅花。
1.1
- Genus Philadelphus, family Hydrangeaceae (formerly Philadelphaceae): several species and hybrids, in particular P. coronarius.山梅花属, 绣球科（原山梅花科）：数种及杂交种, 尤指欧洲山梅花。