Native ti Willowmore, South Africa, Aloinopsis rosulata looks like an A. schoonesii when young but as it grows its leaves elongate. Also the flower differs, it's a pinkish white with a reddish brown midstripe. Like the others it has a tuberous root and flowers in late winter.
     These were sold to me as A. schoonesii but I noticed they were somehow different. I wasn't sure till they flowered.