Final answer:
The turfgrass with folded vernation, a tapered leaf tip, and a dull underside is b)the fine-leaf fescue. Identifying these characteristics is important for selecting and managing turfgrass species for lawns and gardens.
Step-by-step explanation:
The turfgrass that possesses folded vernation, a tapered leaf tip, and leaf blades that have a dull underside is most likely the fine-leaf fescue. In botany, vernation refers to the arrangement of leaves in a bud, and in the case of fine-leaf fescue, the leaves fold along their length prior to emerging from the bud. The tapered tip and the dull underside are additional characteristics that help distinguish this type of grass from others like Kentucky bluegrass, perennial ryegrass, and creeping bentgrass, which have different combinations of leaf characteristics.
When identifying grasses or studying their growth, understanding their physical structure, such as leaf shape, vernation, and surface texture, is crucial. Fine-leaf fescue exhibits these particular traits, aligning with the characteristics described in the question. It is one of many turfgrasses chosen for its durability and aesthetic qualities for lawns and ornamental grounds. Recognizing these traits helps horticulturists and landscapers select appropriate grass species for specific climates and uses. The answer is option b.