The name of this article wasn't revealed in the novel and instead was given by editors of the wiki as substitute for lack thereof.
When Hundred-Grass Alchemy Emperor switched to a different cauldron, he gave the Hundred-Grass Heavenly Cauldron to a close friend. This friend treated this cauldron as his family heirloom for generations.
Many years later the master of the cauldron needed a huge amount of spirit medicines, so he was forced to sell the Hundred-Grass Heavenly Cauldron. He gave it to the Golem Square, and it was sold to Li Qiye for 15,000,000 Virtuous Paragon Refined Jades.
It had the appearance of a tree stump — very archaic looking. It didn’t have an oppressive aura, but it had a profound dao intent.