This distinct variety of the bitterwood tree stands out due to its branched, paniculate inflorescences. Native to tropical South America, it grows primarily in forest ecosystems under warm and humid conditions.
Its wood contains highly bitter compounds known as quassinoids. These natural chemicals have long attracted the attention of pharmacologists and traditional healers alike.
The plant grows as a large shrub or small understory tree. It is distinguished from the typical species by its branched, paniculate inflorescences, rather than simple racemes.
Its leaves are alternate and pinnately compound with winged petioles. The vibrant red flowers are tubular and adapted for pollination by hummingbirds, leading to small, dark, drupaceous fruits.
Extracts from the bitter wood are used in traditional medicine as a digestive aid and febrifuge. The active quassinoids also serve as a potent organic insecticide in ecological agriculture.
The genus name honors Graman Quassi, a freed slave and healer from Suriname. He became famous in the 18th century for using the plant to treat severe fevers, a secret he eventually shared with European botanists.
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