Madagascar Periwinkle🌸

A perennial (annual in Japan) in the dogbane family, native to Madagascar. 'Nichi-nichi-sō' ('daily-daily plant') refers to the continuous flowering. Vivid pink or white 5-petaled flowers bloom from early summer to autumn — a flowerbed staple. The plant contains the alkaloids vinblastine and vincristine, essential source materials for leukemia chemotherapy. Also toxic if ingested.

Identification Points

• ✓Glossy elliptic opposite leaves
• ✓5-petaled flowers 3–5 cm across, typically pink or white
• ✓30–50 cm tall, much-branched

Morphological TraitsAI-estimated, needs verification

Phylogenetic Positionキョウチクトウ科 →