Hydnophytum Formicarium "ant plant"
I call this the "Jabba the hut" plant. It develops a giant base that has little caverns in it. In Africa this plant is home for a special ant that lives in the caverns and protects the plant from invaders. Fortunately that and does not live in the U.S. so you can have this one bug free. Easy to grow in medium to bright light. Keep slightly moist and allow to dry slightly between waterings. A real conversation piece.