Lapidaria margaretae by Succulents Love, via FlickrLooks like stone but is not. Lapidary margarethae is a very attractive miniature, which seems to have been carved in stone. Produces a bright yellow flower. Native of Namibia.
Oxalis palmifrons hails from the deserts of South Africa. This oxalis looks like a giant green snowflake. Zone 7 - 10 Each symmetrical rosette has three dimensional, miniature palm-like leaves.In late fall it is topped with stalks of light pink flowers held just above the foliage. Oxalis palmifrons makes a great windowsill plant.