Salix Tristis, commonly known as the sad willow, is a shrub species found mainly in North America. Its scientific name comprises the genus Salix and species Tristis, which means sad or sorrowful. However, there are many synonymous names for this plant species, including Salix Nigra var. Tristis, Salix Triandra var. Tristis, Salix Babylonica var. Tristis, and Salix Fragilis var. Tristis. Moreover, it is also referred to as the weeping willow or the mourning willow due to its droopy foliage and branches that resemble a mourning veil. Regardless of its name, Salix Tristis is a stunning and unique plant species that adds charm and beauty to any landscape.