This is a tiger jaw (Faucaria tigrina) in flower. My wife brought home in a one-inch pot along with half a dozen other succulents a couple of years ago. The plant is low, mounding, and it’s “jaws” make it look a little fierce on the rocky landscape. Better yet, it needs zero care (I don’t even water it).
For me, the coolest thing about it is for a few weeks in fall it produces a series of flowers, each of which blooms a couple hours before sunset, dies the next morning, and is replaced by another flower elsewhere. It’s sort of like watching fireworks.