Christ's thorn, Paliurus aculeatus from Traité des Arbres et Arbustes que l’on cultive en France en pleine… https://www.rawpixel.com/image/568200/christs-thorn-branchFree Image from public domain licenseChrist's thorn branch plant transparent png https://www.rawpixel.com/image/568220/christs-thorn-branchView licenseVintage Christ's thorn branch plant illustration https://www.rawpixel.com/image/568191/christs-thorn-branchView license