Vinca: características, cuidados y variedades - Jardinatis
Vinca White
Vinca difformis Pourr. | Flora de Galicia
Periwinkle (Vinca media) From the book Wild flowers of the Holy Land: Fifty-Four Plates Printed In Colours, Drawn And Painted After Nature. by Mrs. Hannah Zeller, (Gobat); Tristram, H. B. (Henry Baker),
Vinca major 'Variegata' - 4"R – Evergreen Nursery, Inc.