noun
panicled hydrangea; peegee hydrangea
A species of hydrangea native to Japan and East Asia, known for its large conical flower clusters. The name ノリウツギ comes from the traditional use of its bark to make paste (糊).
庭にノリウツギを植えた。
I planted a panicled hydrangea in the garden.
ノリウツギの花が咲き始めた。
The peegee hydrangea flowers have started to bloom.
アジサイ is the common hydrangea (Hydrangea macrophylla) with rounded flower heads, while ノリウツギ is a different species with conical flower clusters.
The name ノリウツギ is said to derive from 糊 (のり, paste) and 空木 (うつぎ, a general name for certain shrubs), because the bark was traditionally used to make paste.