I was thinking that it could be a Galician or a lusismo for "strawberry" ("strawberry"), but the truth is that it does not appear in the Dictionary of the Spanish Language of the RAE, so it must be a query for another dictionary. See Galician/Morango .
It is one of the common names of the orchard strawberry or strawberry. It is also commonly called strawberry, strawberry, fragaria, fresibaya or strawberry. It belongs to the Rosaceae family. The most common variety is the Fragaria × ananassa.
Morango means strawberry in Portuguese