Astragalus villosissimus (Gintzburger et al., 2003)

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Astragalus unifoliolatus
Gintzburger et al., Rangelands in Uzbekistan, 2003
Astragalus villosissimus (Gintzburger et al., 2003)
Glycyrrhiza glabra
Astragalus villosissimus
Astragalus villosissimus
Astragalus villosissimus
Astragalus villosissimus
Astragalus centralis
Astragalus centralis
Astragalus chiwensis
Astragalus chiwensis
Astragalus filicaulis in Karakum (Turkmenistan)
Astragalus filicaulis
Astragalus scleroxylon


Astragalus villosissimus Bge

Local name:

  • Russian: Астрагал косматейший, сингрен - astragal kosmatejšij, singren
  • Uzbek: Singren

Description and morphology: Perennial, ephemeroid shrub (height up to 1 m). Life span 7–12 years. Pivotal root to depth 1 m with numerous snake-like and thin, friable roots on compact and dry gypseous soils. Early leaf shedding, sclerification or dying of young branches, fugacious flowering and rapid fruit maturation before hot summer. Flowers: similar to A. unifoliolatus, assembled in large inflorescence, friable raceme or spike (about 1 cm); corolla purple-red or yellowish-white. Vegetative growth begins March–April.

Reproduction: Sexual. Entomophilous. Flowering: April–May. Fruit maturation: May–June. Fruit: pods (up to 60 on one plant), dry dehiscent, ovate-orbicular, woolly, grooved on both surfaces. Seed: erect, well differentiated large embryo and endosperm. Seed coat compact, water impermeable. Hardseeded. Field germination: 10–56%. Seeds often eaten by insects (about 75%). Mechanical treatment with sequence of variable temperatures (10/25 °C; 15/30 °C) and high humidity stimulate germination. Light-sensitive.

Pastoral importance: Good feed for camels all year round; also grazed by sheep in spring.

Fodder value: Similar to A. agameticus.

Habitat: Psammophyte and gypsophyte. Present on sandy depressions, gypseous, greybrown, sandy soils.

Distribution: Endemic species of southern desert of Middle Asia. Astragalus spp. are numerous in Uzbekistan and Central Asia and identification is not always easy.

Other: Astragalus spp.