From Savage Sword of Conan Vol. 1 #42, June 1979, the “Kulamtu trees.” At some point, the Amazons of Gamburu planted Kulamtu trees in the center of their town square (or perhaps built the city around them?). Worshipping the Kulamtu like deities, the Amazons would perform ritual sacrifices by feeding living people to the plants. The plants became known as “the Devil-Trees of Gamburu.”