Colombia
Endemic to Colombia, the bark of this tree is used in medicine, as it contains high ammounts of quinine and other useful alcaloids.
| Country: | Colombia |
| Type: | Postage stamps |
| Series: | Royal Spanish Botanical Expedition, Bicent. |
| Nominal: | 60 $ |
| Year: | 1983 |
| Size: | 30 x 40 mm |
| Perforation: | 14 |
| Mintage: | 400,000 |
Royal Spanish Botanical Expedition, Bicent.
 Cinchona Lancefolia |  Passiflora laurifolia |  Cinchona Cordifolia |  Begonia guaduensis 0.18$ |
 Chinchona ovalifolia |  Begonia urticae 0.37$ |