Tabebuia serratifolia, commonly known as Yellow Lapacho , Pau D'arco , Yellow Poui, Yellow Ipe, Pau D'arco Amarelo, or ipê-amarelo. 
It is one of the largest and strongest of tropical forest trees, growing up to 150 feet (46 m) tall while the base can be 4–7 feet (1.2–2.1 m) in diameter.
It is a commercially farmed hardwood notable for its extreme hardness and resistance to fire and pests. It is sometimes traded as an "ironwood", or just as "ipê" (the entire genus Tabebuia), or as lapacho (properly Tabebuia serratifolia)
The bark of Tabebuia serratifolia contains more than 20 active compounds including lapachol, quercetin and other flavonoids. Its inner bark is used as an herbal tea, for treatment of fungal infections.
- Guide de reconnaissance des arbres de Guyane
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