Final answer:
The turfgrass with folded vernation, boat-shaped leaf tips, a long white ligule, and a lighter green color is Kentucky bluegrass.
Step-by-step explanation:
The turfgrass described in the question, with characteristics of folded vernation, boat-shaped leaf tips, a somewhat long white ligule, and a lighter green color, matches the description of Kentucky bluegrass (E). Kentucky bluegrass is known for its distinctive boat-shaped leaf tips and folded vernation, which refers to how the new leaf blades emerge folded from the pseudostem. The white ligule and lighter green color are additional identifying features of this popular turfgrass variety.