A bio-metallite is a class of biological plant life.
History and specifics[]
Rather than being a carbon-based lifeform, bio-metallites are plants based on metallic compounds.
Lozite-M was a bio-metallite that grew only on Zeta-Atez in the Gates of Scylla Confederation. (TOS comic: "Heads of State")
In 2278, the Romulan space station Reltah resembled a sprawling metallic plant to Leonard McCoy. (TOS novel: Shell Game)