#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
  supertype:  organic_compound__organiccompound  any compound of carbon and another element or a radical
  subtype:  Jamaica_quassia  similar to the extract from Quassia amara

No statement uses or specializes quassia; click here to add one.