Vinna
this species of tree was native to the planet Tenek. It was unusual in that its bark was composed almost entirely of metal, which made the trees excellent conductors of lightning-borne electricity. These trees were discovered by Doctor Safford Raen to be the primary food sources for the raen sovra. The worms lived in the ground, twining through the roots of the vinna and waiting for thunderstorms. When lightning struck a vinna tree, the metallic bark conducted electricity into the ground, where it was consumed by the sovra worms. This sudden burst of electricity stimulated that worms, which burrowed through the ground and helped aerate the soil below the trees.