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Celtis koraiensis

Nakai

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(c) Chuangzao, some rights reserved (CC BY-NC), uploaded by Chuangzao

iNaturalist· cc-by-nc

(c) 雨林木风, some rights reserved (CC BY-NC), uploaded by 雨林木风

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Celtis koraiensis, commonly known as the Korean hackberry, is a deciduous tree in the genus Celtis. The species is endemic to the Korean Peninsula and the north of China. It is typically found in altitudes of 100 to 1,500 metres (330 to 4,920 ft). The tree flowers from April to May, and the fruit ripens from September to October. It can grow up to 15 metres (49 ft) in height.

Description

A tree. It grows 15 m tall. The bark is grey. The leaves are oval and 7-12 cm long by 4-10 cm wide. They are papery. The flowers can occur singly or in groups. The fruit is fleshy and yellow to orange but becoming dark brown when ripe. They are oval or round and 1.3 cm across. It has a stone that is wrinkled and ribbed.

Edible Uses

The fruit is eaten raw. It measures about 10mm in diameter and has a thin flesh surrounding a single large seed.

Medicinal Uses

None known.

Distribution

It is a temperate plant. It grows in forests and valleys between 100-1,500 m above sea level.

Where It Grows

Asia, China, Japan, Korea, Manchuria,

Cultivation

Succeeds in any reasonably good soil, preferring a good fertile well-drained loamy soil. Succeeds on dry gravels and on sandy soils. Established plants are very drought resistant. Trees prefer hotter summers and more sunlight than are normally experienced in Britain, they often do not fully ripen their wood when growing in this country and they are then very subject to die-back in winter. Trees can be very long-lived, perhaps to 1000 years. Plants in this genus are notably resistant to honey fungus.

Propagation

Seed is best sown as soon as it is ripe in a cold frame. Stored seed should be given 2–3 months of cold stratification before sowing in February or March in a greenhouse. Germination rates are usually good, though stored seed may take 12 months or more to germinate. Seed can be stored for up to 5 years. Prick seedlings out into individual pots as soon as they are large enough to handle. Seedling leaves often show white patches lacking chlorophyll — this is normal, and older plants produce fully green leaves. Grow seedlings on in a cold frame through their first winter, then plant out the following late spring or early summer, with some cold protection during their first winter outdoors. Cuttings can also be used.

Other Uses

None known.

Notes

There are 70-100 Celtis species. They are mostly in the tropics. There are 8-10 species in tropical America. Also put in the family Ulmaceae.

References (3)

  • Bot. Mag. (Tokyo) 23:191. 1909
  • Flora of China @ efloras.org Volume 5
  • Plants for a Future database, The Field, Penpol, Lostwithiel, Cornwall, PL22 0NG, UK. http://www.scs.leeds.ac.uk/pfaf/

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