Combretum quadrangulare

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Combretum quadrangulare
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Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Combretaceae
Genus: Combretum
Species:
C. quadrangulare
Binomial name
Combretum quadrangulare
Synonyms

Combretum attenuatum Wall.

Combretum quadrangulare, or commonly known as sakae naa, is a small tree of the family Combretaceae, up to 10 m high. The tree grows wildly or is planted in Vietnam, Cambodia, Laos, Myanmar and Thailand.

Contents

The tree is planted along the banks of rivers or arroyos for firing. It is found throughout Thailand especially in open, wet places. Studies of the chemical constituents of this plant have revealed that alcoholic and other extracts from the roots and seeds could kill earthworms.

Description

Tree, 5-10m high: young branchlets acutely quad-rangular or very narrowly quadrialate. Leaves simple, opposite, elliptic or obovate, 3–8 cm wide, 6–16 cm long: petiole acutely ridged. Inflorescence in terminal and axillary spike; flower small, yellowish white. Fruit dry, thinly quadrialate: seed brownish red, ellipsoid, 4- angled.

Chemistry

Combretol is an O-methylated flavonol, found in C. quadrangulare. [1] The plant also contains the gallic acid derivative, 1-O-galloyl-6-O-(4-hydroxy-3,5-dimethoxy)benzoyl-beta-D-glucose. [2]

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References

  1. Mongkolsuk, Stang; Dean, F. M.; Houghton, L. E. (1966). "Combretol from Combretum quadrangulare". Journal of the Chemical Society C: Organic: 125. doi:10.1039/J39660000125.
  2. Adnyana, IK; Tezuka, Y; Awale, S; Banskota, AH; Tran, KQ; Kadota, S (2001). "1-O-galloyl-6-O-(4-hydroxy-3,5-dimethoxy)benzoyl-beta-D-glucose, a new hepatoprotective constituent from Combretum quadrangulare". Planta Medica. 67 (4): 370–1. doi:10.1055/s-2001-14318. PMID   11458461.