Acer shirasawanum

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Acer shirasawanum L.

Aceraceae

Life form: tree

Exposure: sun - Exposure: half shade   6

Moisture: moist

Soil: sandy loam - Soil: gritty loam

Arrangement: opposite
Leaves: decidious

Shape: not specified

Division: not specified

Shape: five-stellate
Fruit: schizocarp

 

Inflorescence: corymb

Petals: not specified
Habit: erect

Growth form: not specified

Taxonomy

Divisio:
Magnoliophyta
Subdivisio:
Magnoliophytina
Classis:
Rosopsida
Subclassis:
Rosidae
Superordo:
Rutanae
Ordo:
Sapindales

Acer shirasawanum, a rare maple species, is a slow-growing shrub or small tree.

Naming

Acer shirasawanum was described by Gen'ichi Koidzumi. The name is considered as validly published.

Taxonomy

Acer shirasawanum is a species in the genus Acer which contains approximately 230 to 296 species and belongs to the family of the Aceraceae (Maple Family). The type species of the genus is Acer pseudoplatanus.

Characteristics

A. shirasawanum - branches
A. shirasawanum - leaves
A. shirasawanum 'Aureum' - flowers
A. shirasawanum - fruits

Growth

Wood and Bark

Leaves

Acer shirasawanum is deciduous. The leaves are opposite. They are petiolate and have palmate venation.

Flowers and Fruits

Acer shirasawanum produces erect five-stellate flowers that are arranged in corymbs.

The trees produce schizocarps.

Root System

Distribution

Acer shirasawanum is native to Japan.

Cultivation

The trees prefer a sunny to half-shady situation on moist soil. The substrate should be sandy-loamy or gritty-loamy soil. They tolerate temperatures down to -23°C (USDA zone 6).

Uses

The ornamental value of Acer shirasawanum lies especially in the ornamental leaves. Suites as specimen plant.

Maintenance and Propagation

Cultivars

Pests and Diseases

Literature

  • Walter Erhardt, Erich Götz, Nils Bödeker, Siegmund Seybold: Der große Zander. Eugen Ulmer KG, Stuttgart 2008, ISBN 978-3-8001-5406-7. (Ger.)
  • Christoper Brickell (Editor-in-chief): RHS A-Z Encyclopedia of Garden Plants. Third edition. Dorling Kindersley, London 2003, ISBN 0-7513-3738-2.

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