Cape Periwinkle (Catharanthus roseus) wani nau'in tsire-tsire ne na furanni na Madagascar wanda ke cikin dangin Apocynaceae. Ana shuka shi a matsayin tsire-tsire na ado kuma ana amfani dashi a cikin maganin gargajiya don alkaloids, wanda ke da maganin ciwon daji. Kalmar "cap" a cikin sunan tana nufin yankinsa na asali, Cape of Good Hope a Afirka ta Kudu, yayin da "periwinkle" ya samo asali ne daga tsohuwar kalmar Faransanci "perivinkle," wanda ke nufin "bindweed" kuma yana bayyana karkatar da shuka, yana rarrafe. dabi'ar girma.