[rrix2]

If you're ever looking at tea shops that sell specialty Japanese teas you can find this style of tea, made from plants grown from seed pollinated by other nearby bushes as opposed to cuttings from a known cultivar, it's refered to as zairai or 在来.

They are often interesting and much more "rough" teas with varying but generally mellow flavors and often processed to contain more hard materials like stems and veins as they would have been when it was still hand rolled. It definitely helps one imagine how tea must have been in those eras, though they still simmered the leaves with the water until the 1700s