Adapt their scent to attract the unwary (only once a century)
Quivers and shakes
The Flutterby bush was a plant that quivered and shook. It produced flowers once a century that adapted their scent to attract the unwary.
"Flutterby" is an old name for "butterfly".
- Harry Potter and the Goblet of Fire (First appearance)
- Harry Potter and the Deathly Hallows
- Pottermore (Mentioned only)