milfoil
/ˈmɪlfɔɪl/noun
1
- the common Eurasian yarrow欧蓍草。
2
- （亦作water milfoil）a widely distributed aquatic plant with whorls of fine submerged leaves and wind-pollinated flowers芪草; 小二仙草。
2.1
- Genus Myriophyllum, family Haloragaceae.属, 小二仙草科。
词源
Middle English: via Old French from Latin millefolium, from mille 'thousand' + folium 'leaf'.