While coastal redwoods rank as the tallest trees on the planet, Utah's "trembling giant" transcends the titles. Known as the Pando aspen grove, it is actually a single massive root system with around 47,000 genetically identical stems that create a grove of trees that keep the root system going.
Source: https://www.treehugger.com/listen-sounds-of-the-largest-tree-on-earth-7495881