What is the scientific name for the Golden Weeping Willow?

The Golden Weeping Willow is scientifically known as Salix alba 'Tristis.' This designation reflects its lineage as a cultivar of the species Salix alba, commonly known as the white willow, with 'Tristis' indicating the weeping form that is characterized by its graceful, drooping branches adorned with bright green leaves that turn golden in the fall.

Understanding the nomenclature is crucial in horticulture, as it allows for precise communication regarding plant identification and care. The other options provided do not accurately represent the Golden Weeping Willow. For example, Quercus palustris refers to the pin oak, a completely different species, while Styrax japonicum is known as the Japanese snowbell, and Tilia cordata is the small-leaved lime tree. Each of these species has distinct characteristics and growing requirements that differentiate them from Salix alba 'Tristis.'