Making my plants spawn in certain overworld-only biomes.

I'm making custom plants for my mod and i was trying to restrict the spawn condition to certain biomes in the overworld, if i remember correctly there used to be an option to select the dimensions your plant was supposed to spawn in, but i can't seem to find it, i know there's a tag called "is_overworld" but it will make it spawn anywhere, not just the biomes i selected.