Which turfgrass has rolled vernation?

Which turfgrass has rolled vernation?

• A. Bermudagrass
• B. Zoysiagrass
• C. Centipedegrass
• D. St. Augustinegrass

Answer: (A)

Vernation describes how a leaf blade unfolds from the bud as it develops. When a grass has rolled vernation, the young leaf is tightly coiled inside and unrolls as it grows. Bermudagrass shows this rolled emergence, so new leaves appear rolled and then unroll, which helps identify it in the field. The other listed grasses don’t exhibit this rolled pattern; their new leaves come out folded or unfold from a flatter state, so they lack the distinctive rolled vernation of bermudagrass.

Vernation describes how a leaf blade unfolds from the bud as it develops. When a grass has rolled vernation, the young leaf is tightly coiled inside and unrolls as it grows. Bermudagrass shows this rolled emergence, so new leaves appear rolled and then unroll, which helps identify it in the field. The other listed grasses don’t exhibit this rolled pattern; their new leaves come out folded or unfold from a flatter state, so they lack the distinctive rolled vernation of bermudagrass.