Comon lilac (Lilac vulgaris) from Traité des Arbres et Arbustes que l’on cultive en France en pleine terre… https://www.rawpixel.com/image/568181/common-lilac-plantFree Image from public domain licenseLilas (Lilac) from La Plante et ses Applications ornementales (1896) illustrated by Maurice Pillard Verneuil. Original from… https://www.rawpixel.com/image/2419829/free-illustration-image-lilac-art-deco-patternFree Image from public domain licensePink common lilac transparent png https://www.rawpixel.com/image/568188/common-pink-lilac-plantView licenseVintage pink lilac plant illustration https://www.rawpixel.com/image/568187/common-pink-lilac-plantView licenseSyringa Vulgaris Var Aline Mocqueris chromolithograph plates by Abraham Jacobus Wendel. Digitally enhanced from our own 1879… https://www.rawpixel.com/image/10208961/image-flower-plant-artFree Image from public domain licensePNG vintage lilac illustration, transparent background. Remixed from our own original 1879 edition of Nederlandsche Flora en… https://www.rawpixel.com/image/11949812/png-white-background-flower-plantView licenseSering (Syringa vulgaris) (1596 - 1610) by Anselmus Boëtius de Boodt and Elias Verhulst https://www.rawpixel.com/image/13742504/image-paper-flower-plantFree Image from public domain licenseLilas (Lilac) from La Plante et ses Applications ornementales (1896) illustrated by Maurice Pillard Verneuil. Original from… https://www.rawpixel.com/image/2415254/free-illustration-image-art-deco-lilac-patternFree Image from public domain licenseLilac (Syringa Vulgaris), from the Flowers series for Old Judge Cigarettes issued by Goodwin & Company https://www.rawpixel.com/image/9611067/image-vintage-cigarette-cards-flower-series-pattern-cigarettesFree Image from public domain licenseVintage lilac illustration, collage element psd. Remixed from our own original 1879 edition of Nederlandsche Flora en… https://www.rawpixel.com/image/11949816/psd-white-background-flower-plantView licenseLilas (Lilac) from La Plante et ses Applications ornementales (1896) illustrated by Maurice Pillard Verneuil. Original from… https://www.rawpixel.com/image/2415252/free-illustration-image-pattern-art-nouveau-decoFree Image from public domain licenseA bunch of flowering lilacs (Syringa vulgaris). Lithograph by E. Champin, c. 1850, after herself. https://www.rawpixel.com/image/13956598/image-flower-plant-artFree Image from public domain licenseVintage lilac illustration. Remixed from our own original 1879 edition of Nederlandsche Flora en Pomona. https://www.rawpixel.com/image/11949819/image-white-background-flower-plantView licenseCommon lilac (Syringa vulgaris) shrub in Bozeman, Montana. June 2016. Original public domain image from Flickr https://www.rawpixel.com/image/3335248/free-photo-image-apiaceae-blossom-cc0Free Image from public domain license