There seem to be two different graphics for wormwood, and they register as completely different plants via the radius gathering perk that comes with leveling up. One is a white fuzzy leafed graphic and the other is what wormwood looks like when it’s in bloom, with yellow flowers. I’m guessing this is the result of separate research. It would be great to have variety in the same plant, but that should go for all the plants, and I’m only seeing it in wormwood (so far). However, they should probably harvest simultaneously with their variants.
Nice one 