Vinca difformis subsp. sardoa SynonymySource: Marhold, K. (2011+): Apocynaceae. – In: Euro+Med Plantbase - the information resource for Euro-Mediterranean plant diversity.Vinca difformis subsp. sardoa Stearn in Bot. J. Linn. Soc. 65: 255. 1972≡Vinca sardoa (Stearn) Pignatti in Giorn. Bot. Ital., nov. ser., 111: 50. 1977ContentDistribution Bibliography Distribution ● Sa Euro+Med endemicA: Sardinia nativeA,B Bibliography A. Greuter, W., Burdet, H. M. & Long, G. 1984: Med-Checklist 1. – Genève & Berlin B. Tutin, T. G., Heywood, V. H., Burges, N. A., Valentine, D. H., Walters, S. M. & Webb, D. A. 1964–1980: Flora europaea 1-5. – Cambridge: Cambridge University Press
