川柳

1. noun senryū; comic haiku; humorous seventeen-mora poem

かわやなぎ also 川楊 · 楊柳

1. noun riverside willow (esp. rosegold pussy willow, Salix gracilistyla)
2. usually in kana Salix gilgiana (species of willow)
3. high-quality coarse tea

かわやぎ

1. noun, archaic riverside willow