This is the green leaf form of Echeveria pulidonis (in contrast to the more common blue leaf form). We've had a hard time keeping this in stock, but it's back...or will be very soon. They're quite easy to grow and with very little coaching (adequate light), the red edges are accented.
A local grower had a few of them and, not knowing the botanical name, gave it a name of it's own..."Zombie Toes". Don't ask me, I don't know why. Just reporting!!!