earth·star /-ˌstɑr/
地星
Earth·star n. Bot. A curious fungus of the genus Geaster, in which the outer coating splits into the shape of a star, and the inner one forms a ball containing the dustlike spores.
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earthstar
n : any fungus of the family Geastraceae; in form suggesting a
puffball whose outer peridium splits into the shape of a
star