Pterocarya is a genus of flowering plants in the family Juglandaceae, which includes trees commonly known as wingnuts. These trees are native to regions in Asia and North America, thriving in moist, well-drained soils. They are characterized by their distinctive winged fruits and pinnate leaves, which can grow quite large. The genus includes several species, such as Pterocarya fraxinifolia and Pterocarya stenoptera. These trees are often used in landscaping and reforestation efforts due to their rapid growth and ability to adapt to various environments. They also provide habitat and food for wildlife.