Intermediate Periwinkle

Vinca difformis is a member of the Apocynaceae family and is commonly referred to as Intermediate Periwinkle. It was scientifically described in 1788 by Pourr. The species is found in various locations, including the islands of Faial, Flores, Graciosa, Pico, Santa Maria, São Jorge, and São Miguel in the Azores, as well as in mainland Europe and North Africa. Its distribution spans across Belgium, France, The Netherlands, Great Britain, Ireland, Spain, England, Algeria, and the Baleares. This plant is part of the genus Vinca, which includes several other periwinkle species.