With the halloween update Klei added to the Mad Scientist Lab "Lunar Experiment" which gives you steeped lunar essence.Now using this essence allows you to mutate entities from the normal constant into lune island plants/animals.
So far I've found out you can turn: Carrots into Carrat
Flowers into Lune trees
Saplings into Lune island saplings
Butterflies into Moths
Dragon fruits into Salamanders
Hounds into Horror hounds
Pengulls into Moonrock pengulls
Spiders into Shattered spiders
and that's it for now, if someone else manages to find what turns into Anenemy or Stone fruit bushes I would be very interested in what that is. So far I've tried turning tooth traps, bramble traps(the one wormwood makes),bee mines, bird traps and normal traps into the Anenemy and for the Stone fruit bushes I tried normal bushes, the tropical variant of the berry bushes, banana trees and juicy berries.