Final answer:
Creeping bentgrass is the turfgrass that has folded vernation, tapered leaf tip, and leaf blades with a glossy underside.
Step-by-step explanation:
The turfgrass that has folded vernation, tapered leaf tip, and leaf blades with a glossy underside is creeping bentgrass. Its folded vernation means that the leaves are rolled or folded in the bud, while the tapered leaf tips refer to the gradually narrowing ends of the leaves. The glossy underside of the leaf blades can help reduce water loss through transpiration.