https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13991673Edit ImageSaveSaveEditCropCustom TextOak (Quercus species): leaves and stem, with a size scale. Pen drawing.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 860 x 1200 px | 300 dpiLarge JPEG 2362 x 3294 px | 300 dpiFree DownloadOak (Quercus species): leaves and stem, with a size scale. Pen drawing.More