Pterocarya fraxinifolia

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Pterocarya fraxinifolia (Poir.) Spach

Juglandaceae

Life form: tree
Usage: ornamental plant

Exposure: sun   7

Moisture: moist

Soil: sandy loam

Arrangement: alternate
Leaves: decidious

Shape: ovate

Division: imparipinnate

    

Shape: not specified
Fruit: samara

150B / c3d238 

Inflorescence: spike

Petals: not specified
Habit: not specified

Canopy: rounded to broadly spreading

Taxonomy

Divisio:
Magnoliophyta
Subdivisio:
Magnoliophytina
Classis:
Rosopsida
Subclassis:
Hamamelididae
Superordo:
Juglandanae
Ordo:
Juglandales

Pterocarya fraxinifolia is a tree.

Naming

Pterocarya fraxinifolia was already described and the name validly published by Jean Louis Marie Poiret. It was Édouard Spach, however, who reclassified it into todays valid botanical systematics .

Taxonomy

Pterocarya fraxinifolia is the type species of the genus Pterocarya which contains approximately 8 to 17 species and belongs to the family of the Juglandaceae (Walnut Family).

Characteristics

Pterocarya fraxinifolia - habitus
Pterocarya fraxinifolia - leaves
Pterocarya fraxinifolia - flowers
Pterocarya fraxinifolia - branches
Pterocarya fraxinifolia - fruits
Pterocarya fraxinifolia - stems

Growth

The trees are comparatively fast-growing and short-lived. They have a rounded to broadly spreading canopy and reach heights of 10 to 25 metres. The plants reach a width of 10 to 15 metres.

Wood and Bark

The bark is silver-grey to green.

Leaves

Pterocarya fraxinifolia is deciduous. The green, imparipinnate leaves are alternate. The ovate leaflets are serrate and sessile. They turn an attractive yellow in autumn.

Flowers and Fruits

Pterocarya fraxinifolia produces spikes of light-green flowers from May to June. The plants are monoecious, pollination takes places by allogamy through the wind.

The trees produce ornamental green samaras in summer.

Root System

The plants form deep-reaching roots.

Distribution

Cultivation

The trees prefer a sunny situation on moist soil. The substrate should be comparatively rich with a pH between 8 and 10. The plants prefer sandy loam. They tolerate temperatures down to -18°C (USDA zone 7).

Classification after Prof. Dr. Sieber

  • open areas

Tolerance of special soil conditions

  • none: drought
  • high: city climate

Uses

Suited as avenue tree, specimen plant, greenery along roads, bird pasture and as plant providing shelter for birds.

Maintenance and Propagation

  • Remove shoots because they weaken the plant.
  • Remove crossing shoots late in winter or in early spring to promote healthy growth.

Propagate by sowing seed in pots outdoors in autumn or by rooting saplings in autumn.

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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