Madagascar Periwinkle
NameMadagascar Periwinkle
Scientific NameCatharanthus roseus
Common NamesMadagascar Periwinkle, Rosy Periwinkle, Cape Periwinkle, Old Maid, Bright Eyes
Plant FamilyApocynaceae
Natural HabitatNative to Madagascar, it thrives in tropical and subtropical regions, often found in open woodlands, coastal areas, and disturbed grounds. It is widely cultivated as an ornamental plant.
Parts Usedwhole_plant,leaf,root
Medicinal Actionsantimicrobial,antioxidant
Traditional UsesTraditionally used in various cultures for treating diabetes, malaria, dysentery, sore throats, and eye irritations. In folk medicine, it was also applied topically for wound healing and insect stings.
Active ConstituentsVinca alkaloids (Vinblastine, Vincristine), Catharanthine, Vindoline, Reserpine, Flavonoids
Preparation Methodsinfusion,decoction,powder
Contraindications & WarningsHighly toxic if ingested in large quantities due to potent alkaloids. Not for self-medication. Can cause severe side effects, including bone marrow suppression, neurotoxicity, and gastrointestinal issues. Contraindicated in pregnancy and breastfeeding, and interacts with many drugs, especially those metabolized by the liver.
Cultivation NotesPrefers full sun to partial shade and well-drained soil. Drought-tolerant once established. Can be grown from seed or cuttings. Requires warm temperatures and is sensitive to frost.
Raritycommon
Description
A perennial herbaceous plant or subshrub, typically growing up to 1 meter tall, with glossy, dark green leaves arranged in opposite pairs. It produces five-petaled flowers, often pink or white with a contrasting eye, blooming almost continuously in warm climates.
