smooth earthball


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Noun1.smooth earthball - an earthball with a peridium that is firm dry and smooth when young but developing cracks when mature; pale orange-yellow when young and reddish brown at maturity
genus Scleroderma, Scleroderma - genus of poisonous fungi having hard-skinned fruiting bodies: false truffles
earthball, hard-skinned puffball, puffball, false truffle - any of various fungi of the genus Scleroderma having hard-skinned subterranean fruiting bodies resembling truffles