This appears to be the work of Japanese artist Kenji Suetsugu. He…

This appears to be the work of Japanese artist Kenji Suetsugu. He often creates highly realistic sculptures. In this case, contra the text, these are clay sculptures to which real turnip leaves have been attached.

Here's video of a leg being "harvested":

https://www.instagram.com/p/CnWo7h_POdl/

More of his work here:

https://www.instagram.com/_tsukurimono_/