Which turfgrass has rolled vernation and a multi-ribbed leaf topside?

• A. Turf-type Tall Fescue
• B. Kentucky bluegrass
• C. Creeping bentgrass
• D. Bermudagrass

Answer: (A)

The trait being tested is how the leaf blade develops as it emerges (vernation) and how its surface looks. Turf-type tall fescue shows rolled vernation, meaning the leaf blade forms rolled up in the bud and then unrolls as it grows. It also has a distinctly multi-ribbed topside, with several parallel veins creating a ribbed, textured appearance across the leaf surface. This combination—rolled emergence plus a ribbed leaf surface—is characteristic and helps distinguish tall fescue from the other common turfgrasses, which tend to have different emergence patterns (often folded or flat) and smoother, less-ribbed leaf topsides. So the rolled vernation with a multi-ribbed topside points to turf-type tall fescue.