Quinine tree, Red Bark, Cinchona, Quina, Quinquina, Quinine Bark, Peruvian Bark, Jesuit's Bark

Cinchona pubescens

Physical Characteristics

Cinchona pubescens is an evergreen Tree growing to 15 m (49ft) by 15 m (49ft) at a fast rate. See above for USDA hardiness. It is hardy to UK zone 10. The flowers are pollinated by Bees, Butterflies. Suitable for: light (sandy) and medium (loamy) soils and prefers well-drained soil. Suitable pH: mildly acid, neutral and basic (mildly alkaline) soils and can grow in very acid soils. It can grow in semi-shade (light woodland) or no shade. It prefers moist soil.

Distribution

S. America - Bolivia, Peru, Ecuador, Colombia, Venezuela; C. America - Panama, Costa Rica.

Habitats

Edible Uses

Edible Parts: Inner bark Edible Uses: Drink Quinine, extracted from the bark of the tree, is used as a bitter flavouring in tonic waters, some liqueurs, carbonated drinks, baked goods, candy etc[ 238 , 301 ].

Medicinal Uses

Antispasmodic Astringent Bitter Cardiac Febrifuge Malaria Tonic Red bark has a long history of native use, especially as a treatment for fevers and malaria. Modern research has shown it to be a very effective treatment for fevers, and especially as a treatment and preventative of malaria. The bark contains various alkaloids, particularly quinine and quinidine. Up to 70 - 80% of the total alkaloids contained in the bark are quinine[ 418 ]. The bark is a bitter, astringent, tonic herb that lowers fevers, relaxes spasms, is antimalarial (the alkaloid quinine) and slows the heart (the alkaloid quinidine)[ 238 ]. The bark is made into various preparations, such as tablets, liquid extracts, tinctures and powders[ 238 ]. It is used internally in the treatment of malaria, neuralgia, muscle cramps and cardiac fibrillation[ 238 ]. It is an ingredient in various proprietary cold and influenza remedies[ 238 ]. The liquid extract is useful as a cure for drunkenness[ 418 ]. It is also used as a gargle to treat sore throats[ 238 ]. Care must be taken in the use of this herb since excess can cause a number of side effects including cinchonism, headache, rash, abdominal pain, deafness and blindness[ 238 ]. The herb, especially in the form of the extracted alkaloid quinine, is subject to legal restrictions in some countries[ 238 ].

Known Hazards

None known