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Vachellia seyal, the red acacia, known also as the shittah tree (the source of shittim wood), is a thorny, 6– to 10-m-high (20 to 30 ft) tree with a pale greenish or reddish bark. At the base of the 3–10 cm (1.2–3.9 in) feathery leaves, two straight, light grey thorns grow to 7–20 cm (2.8–7.9 in) long. The blossoms are displayed in round, bright yellow clusters about 1.5 cm (0.59 in) diameter.

Red acacia
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Caesalpinioideae
Clade: Mimosoid clade
Genus: Vachellia
Species:
V. seyal
Binomial name
Vachellia seyal
(Delile) P.J.H.Hurter
Varieties
  • Vachellia seyal var. fistula (Schweinf.) Kyal. & Boatwr.
  • Vachellia seyal var. seyal (Delile) P.J.H.Hurter
Synonyms[1]
  • Acacia fistula Schweinf.
  • Acacia flava (Forssk.) Schweinf. var. seyal (Delile) Roberty
  • Acacia seyal Delile
  • Acacia stenocarpa A.Rich.
Vachellia seyal bark
Vachellia seyal bark
Vachellia seyal
Vachellia seyal

In Vachellia seyal var. fistula, which is more common on heavy clay soils, some of the thorns are swollen and house symbiotic ants.[2]

It is distributed from Egypt to Kenya and west Senegal. In the Sahara, it often grows in damp valleys. It is also found at wadis on the Arabian Peninsula.


Varieties


Two varieties are recognized:[3][4]


Hybrids


Vachellia seyal occasionally hybridizes with V. xanthophloea.


Uses



Gum arabic


Vachellia seyal is, along with other Vachellias, an important source for gum arabic, a natural polysaccharide, that exudes from damaged stems and solidifies.[5] The gum of V. seyal is called gum talha, from Arabic طلح ṭalḥ, a term for any fruiting tree.


Tanning


Parts of the tree have a tannin content up to 18-20%. The bark and seed pods of V. seyal var. seyal have a tannin content around 20%.[4]


Wood


Wood from the tree is said to have been used in Ancient Egypt to make coffins and also the Ark of the Covenant.[6]


Medicinal uses


Acacia tree in Ain Khudra Oasis, Nuweiba, Sinai Peninsula, Egypt
Acacia tree in Ain Khudra Oasis, Nuweiba, Sinai Peninsula, Egypt

Bark

The bark is used to treat dysentery and bacterial infections of the skin, such as leprosy. It is also used as a stimulant.[5]


Gum

The gum is used as an aphrodisiac, to treat diarrhoea, as an emollient, and to treat hemorrhaging, inflammation of the eye, intestinal ailments, and rhinitis. It is used to ward off arthritis and bronchitis.[5]


Wood

Incense from the wood is used to treat pain from rheumatism and to keep expectant mothers from contracting rhinitis and fevers.[5]


See also



References


  1. ILDIS LegumeWeb
  2. Young, T.P.; Cynthia H. Stubblefield; Lynne A. Isbell (December 1996). "Ants on swollen-thorn acacias: species coexistence in a simple system". Oecologia. 109 (1): 98–107. doi:10.1007/s004420050063. PMID 28307618.
  3. ILDIS
  4. "Tables (Cont. c)". www.fao.org. Retrieved 2017-08-03.
  5. Purdue University
  6. Vachellia seyal in BoDD – Botanical Dermatology Database

На других языках


- [en] Vachellia seyal

[es] Acacia seyal

Acacia seyal es una especie de árbol de la familia de las fabáceas.

[ru] Акация сеяльская

Акация сеяльская[источник не указан 311 дней], красная акация[источник не указан 311 дней], известная также как дерево шитта[en][источник не указан 311 дней] (источник древесины шиттим) — колючее дерево высотой от 6 до 10 м с бледно-зеленоватой или красноватой корой. В основе перистые листья 3-10 см, два прямых светло-серых шипа (прилистникИ, видоизмененных в колючки) вырастают до 7-20 см длиной. Цветки — круглые ярко-желтые гроздья около 1,5 см в диаметре.



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