Diniz, J.M.F. Basile, J.R. Intoxicacao natural de asininos por Pteridium aquilinum (L.)Kuhn no Brasil [samambaia] Spontaneous intoxication of mules with Pteridium aquilinum (L.)Kuhn in Brazil [bracken] Subjects--Topical Terms: EQUINOSAMAMBAIAINTOXICACAO ANIMAL