https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13999103Edit ImageSaveSaveEditCropCustom TextBranches of oak (Quercus) and ash (Fraximus) trees. Pencil drawing.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 1181 x 1200 px | 300 dpiLarge JPEG 2717 x 2760 px | 300 dpiFree DownloadBranches of oak (Quercus) and ash (Fraximus) trees. Pencil drawing.More