"Prefoliation" is a word in ENGLISH

Folded lengthwise along the midrib, the upper face being within; -- said of leaves or petals in vernation or aestivation.

Having the edges rolled inward and then arranged about the axis without overlapping; -- said of leaves in vernation.

Having induplicate leaves in vernation.

Rolled inward from the edges; -- said of leaves in vernation, or of the petals of flowers in aestivation.

Meeting at the edges without overlapping; -- said of the sepals or the petals of flowers in aestivation, and of …

To become young again.

The arrangement of the leaves within the leaf bud, as regards their folding, coiling, rolling, etc.; prefoliation.