No, it does not have parallel venation. It's venation is pinnately netted venation
Reteculate venation
Corn has leaves with parallel venation as it is monocotyledonous
simple leaf with netted venation
By examining the embryo in the seeds, the venation in the leaves and the vasculature of the stem and root one can determine whether the plant is monocot or dicot. The oak has two cotyledons in each embryo, reticulate venation in the leaves and open vascular bundles in the root and stem with secondary growth. The above mentioned features suggest that oak is a dicot plant.By examining the embryo in the seeds, the venation in the leaves and the vasculature of the stem and root one can determine whether the plant is monocot or dicot. The oak has two cotyledons in each embryo, reticulate venation in the leaves and open vascular bundles in the root and stem with secondary growth. The above mentioned features suggest that oak is a dicot plant.
Pin oak
The types of venation are Parallel venation, Pinnate venation, Palmate venation, Reticulate venation. (From your dearest ASWIN)
reticulate leaf venation
Alternate venation
no venation
reticulate venation
parallel venation