noun
softstem bulrush; Scirpus tabernaemontani
A plant species; the name is usually written in katakana as フトイ.
池のそばにフトイが生えている。
Softstem bulrushes are growing by the pond.
The name フトイ (太藺) literally means 'thick rush', from 太い (ふとい, 'thick') and 藺 (い, 'rush'). The exact historical derivation is uncertain.