The Collaborative International Dictionary
Supervolute
Supervolute \Su`per*vo*lute"\, a. [L. supervolutus, p. p. of supervolvere to roll over; super over + volvere to roll.] (Bot.) Having a plainted and convolute arrangement in the bud, as in the morning-glory.
Wiktionary
supervolute
a. (context botany English) Having a plaited and convolute arrangement in the bud, as in the morning glory.