snowy mespilus
noun
1- a white-flowered shrub or small tree of the rose family which is often grown as an ornamental雪欧楂。
1.1
- Genus Amelanchier, family Rosaceae: several species.唐棣属, 蔷薇科：数种。
词源
modern Latin Mespilus (genus name)， from Latin mespilus 'medlar tree'.