Larix Lyallii is a coniferous tree native to the western portions of North America. It is commonly referred to as subalpine larch or Lyall's larch. The tree can grow up to 30 meters tall and is known for its golden-yellow needles that turn a striking orange in the fall. Other common synonyms for Larix Lyallii include mountain larch, Rocky Mountain larch, and western larch. The tree is highly valued in the lumber industry for its hard, durable wood and is also a popular choice for landscaping due to its unique color and texture. Larix Lyallii plays a significant role in the ecology of subalpine and alpine ecosystems, providing habitat for a variety of wildlife species and contributing to soil conservation.