| Remijia | |
|---|---|
| Scientific classification   | |
| Kingdom: | Plantae | 
| Clade: | Tracheophytes | 
| Clade: | Angiosperms | 
| Clade: | Eudicots | 
| Clade: | Asterids | 
| Order: | Gentianales | 
| Family: | Rubiaceae | 
| Subfamily: | Cinchonoideae | 
| Tribe: | Cinchoneae | 
| Genus: | Remijia DC. | 
| Species | |
| 45 species; see text. | |
Remijia is a genus of flowering plants in the family Rubiaceae. Within the family, it is a member of the subfamily Cinchonoideae and the tribe Cinchoneae.
There are about 36 species in Remijia. [1] They are native to Peru and Brazil. Some of the species have hollow stems that harbor ants. [2]
The bark of Remijia contains 0.5%–2% of quinine, a chemical substance often used as a medicinal drug and flavour additive in tonic water. It is cheaper than the bark of Cinchona , another source of quinine. Because of its intense flavor, the bark of Remijia is used in making tonic water. [3]
No type species has ever been designated for Remijia. In 2005, two species were transferred from Remijia to a new genus, Ciliosemina . [4]
There are 45 recognised species: [1]