Combretum Quadrangulare (Sakae Naa) is a small tree in the Combretaceae family, that grows wildly in Thailand,. The Combretum quadrangulare tree is found throughout Thailand especially in open, wet places. The tree ranges between 5-10 meters high, and produces acutely quadrangular, or very narrowly quadrialate branchlets. Its leaves are acutely ridged and generally grow 3-8 cm wide, and 6-20 cm long.

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