The thyrsus was the rod of Dionysus, the Roman god of drink and pleasure. The thyrsus symbol is a pinecone on top of a fennel stalk with a headband tied to the shaft of the stalk. The thyrsus could turn water into wine when used by Dionysus. The pinecone is a symbol of immortality and the thyrsus was also used by Maenads.
Dionysus used the thyrsus to turn water into wine, however, his thyrsus had a spear tip in the pinecone. The tip of the thyrsus produced madness. Dionysus thyrsus is referred to as a spear enveloped in vine leaves.