Ended up digging a 1m x 1m x 1 m hole to plant a large pachanoid in the other day and hit this root while digging. The hole is 6-7 meters away from the nearest Mimosa hostilis I have growing. Based on my observation of dried material I think this might be a root from that plant which is 15 ft tall and has been in the ground (heavy clay soil) 1-2 years. Can anyone with experience (Zaka,Kada, PH?) confirm?