conduplicate
/kənˈduplɪkət/
adjective
- (of a leaf or other plant part) Folded lengthwise with the two halves facing each other, like a closed book.
- The seedling's first leaves were conduplicate, folded neatly along the center vein.
- In many grasses, the young leaves emerge in a conduplicate arrangement.
- Botanists describe the bud as conduplicate when the leaf halves are pressed together.