quinine bush

noun3

1. •
   Alstonia constricta, an Australian endemic plant in the family Apocynaceae.
2. •
   Garrya wrightii, a plant native to Mexico and the United States, in the family Garryaceae.
3. •
   Petalostigma pubescens, a rainforest tree native to Papua New Guinea and Australia, in the family Picrodendraceae.