Cyril Ruoso / Woman with baby collecting Madagascar periwinkle (Catharanthus roseus) flowers and leaves, used in herbal medicine, and containing molecules which are used in the treatment of leukemia cancer. Berenty...

Cyril Ruoso / Woman collecting Madagascar periwinkle (Catharanthus roseus) flowers and leaves, used in herbal medicine, and containing molecules which are used in the treatment of leukemia cancer. Berenty, Madagasc...

Cyril Ruoso / Woman collecting Madagascar periwinkle (Catharanthus roseus) flowers and leaves, used in herbal medicine, and containing molecules which are used in the treatment of leukemia. Berenty, Madagascar.

Simon Colmer / Madagascar periwinkle (Catharanthus or Vinca roseus) Medicinal plant: used to cure hypertension, kidney failure, malaria and diabetes. Used in the treatment of leukemia.

Daniel Heuclin / Madagascar Periwinkle / Cacapoule (Catharanthus roseus) growing in an Amerindian village. Introduced to French Guiana as a medicinal plant for treatment of leukemia, lymphoma, and diabetes. August 200...

Ingo Arndt / Rosy Periwinkle (Catharanthus roseus) pair in bloom, plants are harvested for medicinal use, Madagascar

Ingo Arndt / Rosy Periwinkle (Catharanthus roseus) in bloom, plants are harvested for medicinal use, Madagascar

Adrian Davies / Madagascar periwinkle (Catharanthus roseus) which is cultivated for herbal medicine

John Cancalosi / Madagascan Periwinkle (Catharanthus roseus)

John Cancalosi / Madagascan Periwinkle (Catharanthus roseus)

Doug Wechsler / Madagascar / Rosy periwinkle (Catharanthus roseus)source of cancer cure, Madagascar

Nick Garbutt / Madagascar Periwinkle {Catharanthus roseus} Madagascar