
Madagascar periwinkle
Madagascar periwinkle is a tropical flowering plant native to Madagascar, valued for its striking, vibrant flowers. Beyond its ornamental appeal, it contains important chemicals called alkaloids used in medicine, notably vincristine and vinblastine. These compounds are vital in chemotherapy treatments for cancers such as leukemia and lymphoma. While the plant's beauty makes it popular in gardens, its medicinal derivatives have saved many lives. However, overharvesting and habitat loss threaten its wild populations, emphasizing the importance of sustainable use and conservation efforts.