Picrasma excelsa, Picrasma excelsum, bitterwood, Jamaica quassia - West Indian tree yielding the drug Jamaica quassia

quassia - a bitter compound used as an insecticide and tonic and vermifuge; extracted from the wood and bark of trees of the genera Quassia and Picrasma

bitterwood tree - any of various trees or shrubs of the family Simaroubaceae having wood and bark with a bitter taste

genus Picrasma, Picrasma - small genus of deciduous trees of tropical America and Asia

Jamaica quassia - similar to the extract from Quassia amara