
These leaves are all daye zhong (camelia sinensis assamica) old tea tree leaves. The leaf on the left is clearly older, but still new growth. This gives an idea of the variation in leaf size. The first leaves of spring (tou chun) are typically smaller than the leaves shown here.
Right;
The leaf on the left is from an old tea tree, on the right from a daye tea bush - tai di.
(click on the picture to enlarge)
Note the more regular formation and serrations on the upper margins of the tea bush leaf. Different areas also have trees that produce leaves with different structural peculiarities
Clearly size alone is not a reliable indicator - big leaves are not necessarily from big trees.
