I was thinking about replacements for plastic l, cardboard and other sheet mulches and landed on wood veneer...
Wood veneer cost too much and would be difficult to make at home.
Woodchips, sawdust, the shavings from a plane, autumn leaves, these are all low cost wood products we could put in a sheet mulch, but they are not in sheet form.
Industry uses glues and or high energy to turn similar materials into sheet goods.
These things cost too much, use a lot of energy and introduce toxins.
Mucilage is a natural glue of sorts.
Sesame,okra,flax and chia are some of the seeds that mucilage can be sources from.
They are also food, and annual plants.
I've looked for trees with seeds that would produce mucilage, but only found quince.
Before I move on to other plant glues, like pectin, I thought I'd ask y'all if you have any ideas.
For what it's worth, Chinese Yam seems like a good perennial source of mucilage, one that could grow in a tree layer.