conduplicate
adjective
con·du·pli·cate (ˌ)kän-ˈdü-pli-kət 
-ˈdyü-
: folded lengthwise
conduplicate petals in the bud
Word History
Etymology
Latin conduplicatus, past participle of conduplicare to double, from com- + duplic-, duplex double — more at duplex
First Known Use
1777, in the meaning defined above