Acer caesium, the Himalayan maple, is an Asian species of maple found in India, Pakistan, Nepal, and China (Gansu, Henan, Hubei, Ningxia, Shaanxi, Sichuan, Tibet, Yunnan).

Acer caesium is a tree up to 25 m (82.0 ft) tall, with gray bark. Leaves are non-compound, with 5 shallow lobes, the blade up to 10 cm (3.9 in) long, with teeth along the edges.

Acer caesium subspecies giraldii grows to approximately 10 m (32.8 ft) tall, and is found in north-western China. The flowers are a bluish white and born on young shoots in the spring. The subspecies epithet is a patronym honoring Italian missionary Giraldi.

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