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periwinkle,any of a group of marine gastropodgastropod,
member of the class Gastropoda, the largest and most successful class of mollusks (phylum Mollusca), containing over 35,000 living species and 15,000 fossil forms.
..... Click the link for more information. mollusks having conical, spiral shells. Periwinkles feed on algae and seaweed. They are found at the water's edge; out of water, they resist drying by closing themselves into the shell with a horny plate. The edible European species, called the common periwinkle, has become well established on the Atlantic coast of North America. About 12 other species are found on rocky beaches of both the Atlantic and the Pacific coasts. Periwinkles are classified in the phylum MolluscaMollusca
, taxonomic name for the one of the largest phyla of invertebrate animals (Arthropoda is the largest) comprising more than 50,000 living mollusk species and about 35,000 fossil species dating back to the Cambrian period.
..... Click the link for more information. , class Gastropoda, order Mesogastropoda, family Littorinidae, genus Littorina.
periwinkle,in botany: see dogbanedogbane,
common name for some members of the Apocynaceae, a family of herbs, shrubs, and trees found in most parts of the world but especially in the tropics, where they are often climbing forms. Many species are native to or naturalized in North America.
..... Click the link for more information. .
a plant of the genus Vinca of perennial grasses from the Apocynaceae family. The plants have opposite, often tough, shiny, winter-hardy leaves. The flowers are solitary and comparatively large, and are light blue, blue, pink, or white in color. There are seven species in Europe and Western Asia and five in the USSR. The lesser periwinkle (Vinca minor) grows wild in the western regions of the European USSR, in the Crimea, and in the northern part of western Transcaucasia. It is often cultivated in borders and in leafy flower beds of gardens and parks. The herbaceous periwinkle (V. herbacea) is found in the Caucasus and in the southern half of the European USSR, where it is a favorite plant often mentioned in folk songs.