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  • COMMON NAME: umbrella thorn acacia
  • ARABIC: السمر
  • BOTANICAL NAME: Acacia tortilis (Forssk.)Hayne
  • SYNONYMS: Mimosa tortilis
  • FAMILY: FABACEAE
  • KIND: Native
  • EMIRATE: Abu-Dhabi , Dubai , Sharjah , Fujairah
  • CATEGORIES: Medicinal (M) Fodder (F) Landscape (L) Apiculture (A) Other Uses (O)
  • GROWTH FORMS: Shrubs Tree
  • HABITATS: Terrace Sandy
  • TYPES: Perennial
  • REMARKS: Wadi Wurayah National Park (WWNP). Plants used by honeybees for nectar collection for honey production.
Flora of the United Arab Emirates V1 & 2, Fawzi M.Karim, Nael M.Fawzi; reviewed by Fatima Al-Ansary. Al-Ain: United Arab Emirates University, 2007. https://www.floraofqatar.com/acacia_tortilis.htm Karim FM and Dakheel AG. Salt-tolerant plants of the United Arab Emirates. 2006. International Center for Biosaline Agriculture, Dubai, UAE. Gary R. Feulner. 2014. The Flora of Wadi Wurayah National Park Fujairah, United Arab Emirates.
Highly salt tolerant. treat Infections, jaundice, stomach acidity. Food sources to honey bees ( Honey nectar plants ). Edible gum. Use on furniture, wagon wheels, fence posts, crates, and markers. highly grazable, fuel and ornamental tree.

Umbrella-shaped tree or big shrub, 2-6 meter high, branching from base, young branches reddish-brown, usually pubescent. Spines partly long, white straight, partly small, recurved, dark-tipped. pinnae 2-10 pairs, leaflets 6-18 pairs. Flowers in globular, 4-7 mm across heads, white to pale-yellow. Pod 3-9 cm long and about 0.5 cm wide, contorted or spirally, twisted in 1-3 coils, pubescent. Flowering from March- May.  

mountain slopes, wadi banks, sandy and gravelly soil.
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