This uncurling of the leaf is termed circinate vernation.
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The fronds of tree ferns also exhibit circinate vernation, meaning the young fronds emerge in coils that uncurl as they grow.
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The scapes emerge vertically, lacking the circinate vernation of its leaves and all other scapes of the genus Drosera, with the exception of D. arcturi.
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It has many unusual relict characteristics not found in most other Drosera species, including woody rhizomes, operculatepollen, and the lack of circinate vernation in scape growth.
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(botany) the arrangement of young leaves in a leaf bud before it opens
Vernation (from vernal meaning spring, since that is when leaves spring forth in temperate regions) is the formation of new leaves or fronds. In plant anatomy, it is the arrangement of leaves in a bud.
Vernate may refer to: *Vernate (MI), Italy *Vernate, Switzerland, in the canton of Ticino
The manner in which a leaf, or the parts of a leaf, are rolled up in the bud. The same is true for the fronds of ferns.
The arrangement of the folded leaves in a bud. For example, Ryegrass leaves emerge and unfold, leaving a midrib down the leaf blade. But Bentgrass leaves emerge and unroll leaving no midrib.