Gourd trellis: hyotan-dana

Portending the approach of rain, rustling of a taro-tempest.

Wat is called a "taro-tempest" (imo-arashi) occurs when the autumn wind blows strongly over the
wide leaves of the taro(a kind of potato). It shows its under-leaves as they wave to and fro.
The sound of the wind is then a serious portent of rain.