The quercitannic acid molecule is also present in quercitron, a yellow dye obtained from the bark of the Eastern black oak ( " Quercus velutina " ), a forest tree indigenous in North America.
परिभाषा
medium to large deciduous timber tree of the eastern United States and southeastern Canada having dark outer bark and yellow inner bark used for tanning; broad five-lobed leaves are bristle-tipped पर्याय: black oak, yellow oak, quercitron oak, Quercus velutina,
a yellow dye made from the bark of the quercitron oak tree
मोबाइल