periwinkle

nouns

chiefly trailing poisonous plants with blue flowers
periwinkle
is a member of
periwinkles: low creeping evergreen perennials
Vinca, genus Vinca
is a type of (narrower)
low-growing woody shrub or perennial with woody base
subshrub, suffrutex
commonly cultivated Old World woody herb having large pinkish to red flowers
Cape periwinkle, Catharanthus roseus, Madagascar periwinkle, Vinca rosea, cayenne jasmine, old maid, periwinkle, red periwinkle, rose periwinkle
small edible marine snail; steamed in wine or baked
periwinkle, winkle
edible marine gastropod
periwinkle, winkle