Ruby Rhubarb has reddish-orange hair and a green coat and eyes. Ruby Rhubarb's cutie mark is a pie. She is wearing a green bowtie, a pink frilly saddle, and a stereotypical cowboy boots and hat. She dances alongside Pinkie Pie and presumably lives in Appleloosa.
Ruby Rhubarb has only made one appearance throughout the whole My Little Pony: Friendship is Magic series, meaning her first appearance was her last appearance.
Ruby Rhubarb made her debut appearance in Over a Barrel.