Well I imagine that they were playing Jumanji, lost a go, and have now been trapped in the game for decades on a single finite square bound infinitely in all directions, searching for the one Parasaurolophus egg to free one of them from the game.
You need an area modifier for normally thin undergrowth clamped to a base, where multiplying would be too powerful. So you add as a general bonus to the area
I... I think I want this as my new coding chair.
Look at that neck support, and arm flexibility