Biology:Combretum quadrangulare

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Short description: Species of flowering plant

Combretum quadrangulare
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Myrtales
Family: Combretaceae
Genus: Combretum
Species:
C. quadrangulare
Binomial name
Combretum quadrangulare
Kurz
Synonyms[2]

Combretum attenuatum Wall.

Combretum quadrangulare, or commonly known with its Thai name sakae naa (สะแกนา) is a species of flowering plant in the family Combretaceae.[2][3] It is a small tree that grouws up to 10 m high. The tree grows wildly or is planted in Vietnam, Cambodia, Laos, Myanmar and Thailand.

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.[4] The plant also contains the gallic acid derivative, 1-O-galloyl-6-O-(4-hydroxy-3,5-dimethoxy)benzoyl-beta-D-glucose.[5]

References

  1. de Kok, R. (2024). "Combretum quadrangulare". IUCN Red List of Threatened Species 2024. doi:10.2305/IUCN.UK.2024-1.RLTS.T218981764A218992511.en. https://www.iucnredlist.org/species/218981764/218992511. Retrieved June 6, 2025. 
  2. 2.0 2.1 "Combretum quadrangulare Kurz". The Trustees of the Royal Botanic Gardens, Kew. n.d.. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:170410-1. 
  3. "Combretum quadrangulare Kurz". Species 2000. n.d.. https://www.catalogueoflife.org/data/taxon/5ZQZ8. 
  4. 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. 
  5. 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. 

Wikidata ☰ Q5150965 entry