Robinia pseudacacia (Gintzburger et al., 2003)

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Psoralea drupacea
Gintzburger et al., Rangelands in Uzbekistan, 2003
Robinia pseudacacia (Gintzburger et al., 2003)
Smirnowia turkestana
Robinia pseudacacia
Robinia pseudacacia
Robinia pseudacacia

Robinia pseudacacia L.

Local name:

  • Russian: Робиния ложноакация (Белая акация) - robinija ložnoakacija (belaja akacija)
  • Tadjik: Akatsiyai safed
  • Uzbek: Akas

Chromosome number: 2n = 20 (Kreuter 1930); 2n = 22 (Chekhov 1930). Description and morphology: Deciduous tree (height 20–25 m). Leaves: on short glabrous pedicels, imparipinnate (5–12 pairs). Leaflets oblong-ovate, glabrous entire. Flowers: bisexual; large (about 2 cm long), white, leguminous type, assembled in loose, large (12–15 cm long), pendulous racemes; 10 stamens (9 accreted and 1 free). Calyx reddish, hairy, tubular-campanulate (9–10 mm long).

Reproduction: Sexual. Entomophilous. Flowering and fruit maturation: April–September. Fruit: dehiscent, reddish-brown, pendulous, polyspermous, compressed, bristle pods (3.4– 7.0 cm long,1.5–1.8 cm wide) on short stalk. Seed: longitudinal in pod, light brown, orbicular shiny with well differentiated embryo without endosperm. Seed coat compact and hard, water impermeable. Dormancy Af type. Laboratory germination: 32–46%. Light-sensitive. Scarification, or treatment with concentrated sulphuric acid and/or boiling water (2– 3 cycles), then 20–25 °C, stimulate germination.

Economic interest: Honey production and decorative plant. Wood is largely used as construction material and fuel. Used in agro-forestry programme in the adyr, foothills and lowaltitude mountains.

Habitat: Introduced plant and widely cultivated in parks and along streets in many cities of Uzbekistan.

Distribution: North America, southern Europe, North Africa and Middle East.