spearwort
/ˈspɪəwɜːt/noun
1- a European buttercup of marshes and ditches, with thick hollow stems and long narrow spear-shaped leaves焰毛茛。
1.1
- Genus Ranunculus, family Ranunculaceae: the lesser spearwort (R. flammula) and the less common greater spearwort (R. lingua).毛茛属, 毛茛科：匍枝毛茛（拉丁名R. flammula）和不常见的长叶毛茛（拉丁名R. lingua）。