https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13956462Edit ImageSaveSaveEditCropCustom TextFour examples of thorny or hairy plant stems: a rose, barberry, plum and stinging nettle. Coloured etching by F. Sansom, c. 1802, after S. Edwards.Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseJPEGSmall JPEG 706 x 1200 px | 300 dpiLarge JPEG 1200 x 2040 px | 300 dpiFree DownloadFour examples of thorny or hairy plant stems: a rose, barberry, plum and stinging nettle. Coloured etching by F. Sansom, c. 1802, after S. Edwards.More