For the last few years I’ve been under the misaprehension that the paper made in Man Zhao outside Meng Hun, the hand-made paper which is used widely for wrapping puer tea, was made from the bark of the Mulberry tree. I was wrong.
The bark now rarely comes from local sources as there are insufficient trees to support the village industry, so most of it is imported from neighbours: Thailand, Myanmar, Laos. It’s called gou pi shu locally – which I somewhat predictably assumed was ‘dog skin’ tree – it is in fact 构树/gou shu, Paper Mulberry, broussonetia papyrifera.
I could perhaps be forgiven as the leaves do look a little similar.
There are a number of photos here
And some links here: