Wires_Guy_wires
Imperial Masterpiece
I found that a bactetia called Streptomyces griseovirides K61 was found on sphagnum, and that one is able to produce IAA.I don't... Maybe I need to be corrected....but I've read that one for years.
Sphagnum itself seems - as far as I can find- to produce auxins like any other plant, but only when it's alive and it seems to use all of it for its own growth.
I'll see if I can find more about it.