Star World

From Yb Timeline

Star World, sometimes referred to as Mushroom World (although usually only by Toads to make them feel more important) is generally the main planet the timeline is focused around, which is the fault of The Yoshi Bodyguards. I'm sure if it was The Jinjo Bodyguards, Rareworld would be more focused on.

It's been said that in addition to the most well-examined Mushroom Kingdom, "There's the Carrot Kingdom, the Cabbage Kingdom, and, largest of all, the Puh-tah-toh Kingdo-o-om." One game apparently featured the Bean Bean Kingdom as well. And if Wary wasn't so hungry this list might go on.