Psiloritis' Knotgrass, Polygonum idaeum

Photo of Psiloritis' Knotgrass, Polygonum idaeum. This is an endemic species of the island of Crete, Greece. Shepherds, claim that it turns the sheep's teeth "golden" after eating it. Its main distribution is in the plateaus of Psiloritis mt (Idi) hence its name. Most of the plant's stem is underground. It is an adaptation to the overgrazing that takes places in the areas where it grows.