What is carpainia?

Carpainia is a genus of flowering plants in the family Elaeagnaceae, commonly associated with the family of oleaster or silverberry. It includes species that are typically shrubs or small trees, found in various regions, particularly in temperate areas. The plants are known for their nitrogen-fixing abilities and are often used in landscaping and for ecological restoration. The genus is relatively less well-known compared to others in the Elaeagnaceae family.