Coutoubea spicata
Coutoubea spicata is a species of flowering plant from the genus Coutoubea. Description 
Coutoubea spicata is a 1 m tall creamy-white flowered gentian. It is a bitter tonic, which in the 19th century was used as emmenagogues, anthelmintics, and for the removal of intestinal obstructions. More recently, this plant has been studied for its potential antidiabetic and antimalaria properties. References

Flora of Suriname
Gentianaceae