Substantiv
disease of grains; the entire head is a dusty mass of spores
a smut fungus of the genus Ustilago causing a smut disease of grains in which the entire head is transformed into a dusty mass of spores
disease of grains; the entire head is a dusty mass of spores
a smut fungus of the genus Ustilago causing a smut disease of grains in which the entire head is transformed into a dusty mass of spores