Velvet osier, also known as Salix cinerea, is a type of willow tree with greyish-green leaves and a velvety texture. It is commonly used for baskets, furniture, and fencing due to its pliability and durability. However, there are several synonyms for velvet osier, including grey willow, pussy willow, and grey-leaved willow. These terms are often used interchangeably depending on the region or context. Other related species of willow used for similar purposes include dark-leaved willow, basket willow, and common osier. Regardless of the name, these plants remain highly sought-after for their versatile and practical applications in various industries.