>>24915470There's the Hamelia Patens, sometimes called the firebush, which has red bits. Tere's also always hot pepper, various autumn-colored plants, or even desert plants that could be paired with some kind of desert animal.
A theme tying the 3 together also helps. Looking at it now, it seems like they could all be monsters
Fire/Water- some kind of alien
Water/Grass- swamp monster
Grass/Fire- some 3rd kind of monster