Aerial photograph showing rainforest in Pará state, Brazil. The Ipê tree flowers with brilliant pink, yellow or white flowers every September. It is a valuable timber for its wood, known for its durability, strength and its natural resistance to decay. Ipê growing in the Amazon has a low population density, with an average of one tree per 10 hectares. This means that large areas of forest need to be opened up to access these valuable trees.