瑞士薄荷. 胡椒薄荷(歐薄荷)  薄荷薄荷 M. canadensis
Swiss Mint makes a fabulous tea, or use in middle eastern dishes. 
It is also great is a rockery provided you are happy for it to spread.  
Otherwise plant in a pot to contain its growth. 
It is a strong peppermint variety with pale pink flowers.
界： 植物界 Plantae
演化支：維管束植物 Tracheophyta
演化支：被子植物 Angiosperms
演化支：真雙子葉植物 Eudicots
演化支：菊類植物 Asterids
目：唇形目 Lamiales
科：唇形科 Lamiaceae
屬：薄荷屬 Mentha
種：瑞士薄荷 M. canadensis
二名法
Mentha canadensis