Gardenia, -dÄ“n'y$a, a large genus of Old World tropical shrubs and small trees, numbering more than 60 species. The typical gardenia has fragrant,… See more » Aloe, a genus of perennial plants of the lily family. There are about 200 speccies, almost all native to Africa. Aloes are called succulents because… See more » Oleander, a poisonous, evergreen shrub. Any part of the plant, either green or dry, is extremely poisonous Eating a single leaf, for example, can… See more »