Populus pruinosa (Gintzburger et al., 2003)

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Populus diversifolia
Gintzburger et al., Rangelands in Uzbekistan, 2003
Populus pruinosa (Gintzburger et al., 2003)
Scrophularia leucoclada
Populus pruinosa
Populus pruinosa
Populus pruinosa
Populus pruinosa
Populus litwinowiana
Populus litwinowiana


Populus pruinosa Schrenk

Local name:

  • Russian: тополь сизолистый, туранга - topol' cizolistnyj
  • Uzbek: Turangyl

Chromosome number: 2n = 38 (Tischler 1934; Fedorov 1969).

Description and morphology: Deciduous tree (height up to 15–20 m) with erect or slightly twisting trunk (up to diameter 50 cm). Crown wide spreading with brownish-grey bark. Stem: glabrous, yellowish-brown. Buds oviform (5–7 mm long). Leaves: alternate, undivided, broad, longer petiolate; dimorphic; entire, broadly rhombic-orbicular (2–4 cm long, 4–6 cm wide) upward, entire or irregularly toothed, slightly pointed or grooved at tip. Catkins appear before leaves, pendulous. Perianth cup-shaped, many toothed; male flowers (up to 2 mm long), long-pedicelled in compact (dense) catkins; 12–14 stamens; anthers ovate, dark brown with free filaments. Female catkins (5–6 cm long), dense, woolly with single ovary.

Reproduction: Sexual and vegetative (suckers). Anemophilous. Flowering: April. Fruit: large, ovoid-oblong capsule, narrow at top (6–10 mm long), opening by 2 slits.

Pastoral importance: Not grazed. Occasionally lower leaves are grazed by cattle.

Economic interest: A valuable source of building timber for local population. An important element in silvo-pastoral systems in Middle and Central Asia. Many hybrids grown for timber and fuelwood. Fuelwood of low value.

Habitat: Riparian. Hygrophyte. Occurs in tugaï forest, river banks, springs, along Amu-Darya and Syr-Darya rivers and most permanent rivers. Moderately salt-tolerant. Often mixed with P. diversifolia in tugaï; forms dense groves along rivers in highlands (350–1950 m).

Distribution: Central Asia, southern Kazakhstan, Iran and western China.

Other: Populus sp. – Populus litwinowiana Dode.