Thanks, all; really helpful. NewRon, both Kuzu and Agar Agar are new to me. I found more here.
Kuzu is actually an old "friend." I know it as kudzu.
Anyone whose lived in the South (or Japan) knows that this is the most aggressive, nasty, "weed" ever.
It takes over huge tracts of land and hillsides in a very short period of time. What would it do to my innards...