Made using fresh organic vegetables, these ingredients can easily regrow themselves with no degree from Hogwarts required. (jerryjamesstone.com)
Researchers have also discovered that this relatively slow - growing fungus can have its main stem broken off and regrow it later. (scientificamerican.com)
After having his hand cut off and (in some spectacularly bad CGI) regrowing it because his regeneration cycle was still so fresh, the Sycorax wonders what kind of man he is. (sarahbessey.com)