What does "cape periwinkle" mean?

commonly cultivated Old World woody herb having large pinkish to red flowers

Cape periwinkle

Common synonyms include: catharanthus roseus, cayenne jasmine, madagascar periwinkle, old maid, periwinkle, red periwinkle.

Rare ·Advanced level

Noun

1
commonly cultivated Old World woody herb having large pinkish to red flowers wordnet