California Lilac (Ceanothus thyrsiflorus) (1935) by Mary Vaux Walcott. Original from The Smithsonian. Digitally enhanced by… https://www.rawpixel.com/image/2624531/free-illustration-image-lilac-blue-flowersFree Image from public domain licenseNew Jersey tea, Ceanothus americanus from Traité des Arbres et Arbustes que l'on cultive en France en pleine terre… https://www.rawpixel.com/image/569146/blooming-new-jersey-teaFree Image from public domain licenseVintage blue vector California Lilac, remixed from the artworks by Mary Vaux Walcott https://www.rawpixel.com/image/2670786/premium-illustration-vector-blue-flower-lilac-ceanothusView licenseCeanothus Hyb. Leon Simon chromolithograph plates by Abraham Jacobus Wendel. Digitally enhanced from our own 1879 edition… https://www.rawpixel.com/image/10209046/image-flower-plant-grassFree 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/11977322/png-white-background-flower-plantView licensePNG vintage lilac illustration, transparent background. Remixed from our own original 1879 edition of Nederlandsche Flora en… https://www.rawpixel.com/image/11977326/png-white-background-flower-plantView licensePNG vintage lilac illustration, transparent background. Remixed from our own original 1879 edition of Nederlandsche Flora en… https://www.rawpixel.com/image/11977327/png-white-background-flower-plantView licenseVintage lilac illustration, collage element psd. Remixed from our own original 1879 edition of Nederlandsche Flora en… https://www.rawpixel.com/image/11977346/psd-white-background-flower-plantView licenseVintage lilac illustration, collage element psd. Remixed from our own original 1879 edition of Nederlandsche Flora en… https://www.rawpixel.com/image/11977348/psd-white-background-flower-plantView licenseVintage lilac illustration, collage element psd. Remixed from our own original 1879 edition of Nederlandsche Flora en… https://www.rawpixel.com/image/11977349/psd-white-background-flower-plantView licenseVintage new jersey tea vector https://www.rawpixel.com/image/569138/blooming-new-jersey-teaView licenseNew jersey tea transparent png https://www.rawpixel.com/image/569167/blooming-new-jersey-teaView licenseVintage lilac illustration. Remixed from our own original 1879 edition of Nederlandsche Flora en Pomona. https://www.rawpixel.com/image/11977336/image-white-background-flower-plantView licenseVintage lilac illustration. Remixed from our own original 1879 edition of Nederlandsche Flora en Pomona. https://www.rawpixel.com/image/11977339/image-white-background-flower-plantView licenseVintage new jersey tea illustration https://www.rawpixel.com/image/569126/blooming-new-jersey-teaView licenseVintage flower illustration psd https://www.rawpixel.com/image/10537308/vintage-flower-illustration-psdView licenseVintage lilac illustration. Remixed from our own original 1879 edition of Nederlandsche Flora en Pomona. https://www.rawpixel.com/image/11977341/image-white-background-flower-plantView license