circinate

/ˈsɜːrsɪneɪt/
adjective
  1. Rolled into a coil or spiral, especially describing young fern leaves or plant parts that unroll as they grow.
    • The fern frond was circinate, tightly curled like a fiddlehead.
    • Botanists study circinate vernation in young leaves of many plants.
    • The circinate shape of the emerging shoot protects the delicate tip.
Antonyms
What does "circinate" mean? | whatsthatwordmean | whatsthatwordmean