^ "2015 North America-China Plant Exploration Consortium (NACPEC) Expedition to collect Acer griseum".^ "RHS Plant Selector - Acer griseum".^ RHS A-Z encyclopedia of garden plants.^ a b c d e Flora of China (draft): Acer griseum."This distinctive tree is vastly underappreciated - and it's dying out". ^ "Acer griseum (Franch.) Pax - The Plant List".Propagation of Acer griseum is somewhat difficult as seeds have the same parthenocarpic tendencies as those of Acer maximowiczianum. In 2015, the North America-China Plant Exploration Consortium (NACPEC) conducted an expedition specifically targeting Acer griseum for seed collection with the object of increasing the genetic diversity of plants in cultivation. This plant has gained the Royal Horticultural Society's Award of Garden Merit. Cultivars include the columnar Copper Rocket. It also has spectacular autumn foliage which can include red, orange and pink tones. It is admired for its decorative exfoliating bark, translucent pieces of which often stay attached to the branches until worn away. It is one of many species of maples widely grown as ornamental plants in temperate regions. Cultivation and uses Īcer griseum was introduced to cultivation in Europe in 1901 by Ernest Henry Wilson for the Veitch Nurseries in the UK, and to North America shortly after. The yellow flowers are androdioecious, produced in small pendent corymbs in spring, the fruit being a paired samara with two winged seeds about 1 cm long with a 3 cm wing. The leaves are compound, with a 2–4 cm petiole with three leaflets, each 3–10 cm long and 2–6 cm broad, dark green above, bright glaucous blue-green beneath, with several blunt teeth on the margins.
The shoots are densely downy at first, this wearing off by the second or third year and the bark exfoliating by the third or fourth year. The bark is smooth, shiny orange-red, peeling in thin, papery layers it may become fissured in old trees. It is a small to medium-sized deciduous tree, reaching 6–9 m (20–30 ft) tall and 5–6 m (16–20 ft) wide, with a trunk up to 70 cm (28 in) in circumference. Acer griseum is found in the Chinese provinces of Gansu, Henan, Hubei, Hunan, Shaanxi, Shanxi and Sichuan, at altitudes of 1,500–2,000 m (4,921–6,562 ft).
Acer griseum, the paperbark maple or blood-bark maple, is a species of flowering plant in the family Sapindaceae, native to central China.
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