Reddit user Independent-Design17 proposed an intriguing connection between Elden Ring's Erdtree and the Australian Christmas tree, Nuytsia floribunda. While a superficial resemblance, particularly between the smaller Erdtrees in the game and Nuytsia, exists, fans have uncovered deeper thematic similarities.
Elden Ring's Erdtree guides the souls of the deceased, reflected by the game's catacombs at its base. Similarly, Nuytsia floribunda holds spiritual significance in Australian Aboriginal culture, with each flowering branch representing a departed soul, its vibrant color echoing the sunset, the believed destination of spirits.
Further strengthening this comparison is Nuytsia's semi-parasitic nature; it thrives by drawing nutrients from neighboring plants. This mirrors a prevalent fan theory suggesting the Erdtree's parasitic nature, its supposed absorption of the life force from an ancient Great Tree. However, game item descriptions referencing a "Great Tree" have been identified as a translation error, actually referring to the Erdtree's own extensive root system.
Ultimately, whether these Nuytsia parallels are deliberate design choices by FromSoftware remains a mystery known only to the developers.