yes they do.
conifer
All leaves have veins
The leaves.
Conifer trees grow needles and cones
corn leaves have parallel veins
Conifersaurus's
The needles of a conifer tree can be compared to leaves, as they serve a similar function in photosynthesis and transpiration. However, conifer needles tend to have a waxy coating and remain on the tree for multiple years, unlike deciduous tree leaves which are shed annually.
Needle-like
It has netted leaves
The many species of maple trees are broadleaf trees, and drop their leaves during the winter. Therefore, they are not a conifer.
Elm has pinnate veins.
Yes, conifers have leaves. The definition of a conifer is : A cone bearing tree with tiny needlelike leaves.