ツチグリ

noun

barometer earthstar

A species of fungus (Astraeus hygrometricus) known for its hygroscopic rays that open and close with humidity. The name is usually written in katakana as ツチグリ.

• ツチグリは雨あめの後あとに地じ面めんに現あらわれることがある。

  Barometer earthstars sometimes appear on the ground after rain.

• このキノコはツチグリと呼よばれ、湿しつ度どで形かたちが変かわる。

  This mushroom is called tsuchiguri, and its shape changes with humidity.