Phyto-hexahedron
A phyto-hexahedron
…is a Cybernetic Lifeform Node (a race of sentient beings) designed for protecting lifeforms on earth. It has chosen to protect a croton plant, hardy & native to South Africa. Phyto-hexahedrons were first conceived of as military robots but quickly entered industrial and domestic sectors, becoming widespread across North-America and eventually the whole world. Phyto-hexahedrons believe in only their One True God, mother nature, or Gaia for some folks. They will become hostile against their creators or their human masters, in order to successfully care for their chosen lifeforms, which ignited a fear of genocidal war for both parties so they agreed to co-exist in peaceful symbiosis.
*Inspiration from the wiki and fans of Battlestar Galactica.