quercitron
noun
quer·cit·ron ˈkwər-ˌsi-trən 
ˌkwər-ˈsi-
1
: a large timber oak (Quercus velutina) chiefly of the eastern and central U.S.
2
: the bark of the quercitron that is rich in tannin and a dye containing quercetin
also : the dye
Word History
Etymology
blend of New Latin Quercus and International Scientific Vocabulary citron
First Known Use
1792, in the meaning defined at sense 2