Acer caesium, the Himalayan maple,[3] is an Asian species of maple found in India, Pakistan, Nepal, and China (Gansu, Henan, Hubei, Ningxia, Shaanxi, Sichuan, Tibet, Yunnan).

[4] 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.

[4][5] Acer caesium subspecies giraldii grows to approximately 10 m (32.8 ft) tall, and is found in north-western China.

[6] The subspecies epithet is a patronym honoring Italian missionary Giraldi.