Syringa vulgaris USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. Vol. 2: 724. - Foto visualizzata 844 volte
| Syringa vulgaris C. Hoffmann - Botanischer Bilder-Atlas (1884) - This image is in the public domain because its copyright has expired. - Foto visualizzata 848 volte
| Syringa vulgaris Jacob Sturm, Johann Georg Sturm - Deutschlands Flora in Abbildungen (1796). - This image is in the public domain because its copyright has expired. - Foto visualizzata 938 volte
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