I have a massive bed of tulip plants (or at least I think they're tulips...) but I'm having trouble figuring out why they look so different from other tulip plants I have. The plant itself looks almost like a cactus or as if it's related to hens and chicks (it's two broad leaves that look like blown up artichoke leaves, and the tulips have risen out of the middle. Are these tulips? If so, why does the plant look so much different than traditional tulips?