What is the common name for Salix alba 'Tristis'?

The common name for Salix alba 'Tristis' is indeed the Golden Weeping Willow. This particular cultivar of the white willow is known for its distinctive long, sweeping branches that gracefully droop towards the ground, creating an elegant, cascading appearance. These characteristics are what make the tree particularly popular for ornamental use in landscapes and gardens.

The golden coloration of the younger branches and twigs adds to the visual appeal of the tree, especially in sunlight, which further emphasizes its common name. Weeping willows are often associated with ponds and wetlands, where they thrive alongside other water-loving plants.

The other choices refer to different species altogether, each with their specific characteristics and uses in horticulture. The European Mountain Ash, for example, is known for its clusters of bright berries and is a different genus, while the Japanese Snowbell and Little Leaf Linden are also distinct species with their own unique features.