Hello there! I've got a baby toes plant y…

Hello there! I've got a baby toes plant yesterday and my question is: how I know that it is a fenestraria or a frithia? It has no blooms just the toes so it doesn't help. Thank you!

Hello! the leaves of frithia have a kinda rough texture, and the top windows are flat and shaped like elephant feet, which is what they’re commonly called. fenestraria leaves are completely smooth and the top windows are domed.