What is the common name for Laburnum x watereri?

Laburnum x watereri is commonly known as the Goldenchain Tree. This name reflects the tree's striking, cascading clusters of yellow flowers that resemble chains, particularly evident in spring when it is in full bloom. The flowers hang in long, pendulous racemes, which adds to its ornamental value and popularity in gardens and landscapes.

The other options represent entirely different plant species. Crabapple refers to various species of Malus known for their fruit and spring blossoms. Pacific Dogwood, or Cornus nuttallii, is a flowering tree native to the West Coast of the United States, known for its large white flowers. Star Magnolia, or Magnolia stellata, is a small tree with star-shaped flowers that bloom early in the season. Each of these trees has distinct characteristics and does not relate to the features of Laburnum x watereri, further emphasizing why the Goldenchain Tree is the correct identification.