Musk Mallow
Malva moschata

The Musk Mallow is edible.  The leaves, flowers, and seeds are all edible and mild.  It grows pretty wild on our property in many places within our field.

Looking a little further online I found that yellow and green dyes can be got from the plant and seed heads, as well as a fibre within the stems being able to be used for cordage and paper making.