noun
sweet viburnum; Viburnum odoratissimum
An evergreen shrub or small tree native to East Asia, often used for hedges and ornamental planting. The name literally means 'coral tree'.
庭にサンゴジュを植えた。
I planted a sweet viburnum in the garden.
サンゴジュの赤い実がきれいだ。
The red berries of the sweet viburnum are beautiful.
noun
tree-shaped coral formation
Refers to a coral structure that resembles a tree in shape. This sense is less common and may appear in contexts like marine biology or aquarium keeping.
水槽の中にサンゴジュのような形のサンゴがある。
There is a coral shaped like a tree in the aquarium.
From 珊瑚 (sango, 'coral') + 樹 (ju, 'tree'). The plant name comes from the resemblance of its red berries to coral.