noun
ivy; Boston ivy
Refers to ivy, especially Boston ivy (Parthenocissus tricuspidata). Often written in katakana as ツタ.
壁にツタがからまっている。
Ivy is creeping up the wall.
秋になるとツタの葉が赤くなる。
In autumn, the ivy leaves turn red.
The origin is uncertain. The kanji 蔦 is a phono-semantic compound, but the word itself is likely native Japanese.