https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/14002403
A milkwort or gang flower (Polygala vulgaris): one plant with red flowers and three stems with blue flowers. Colour nature print by H. Bradbury.
Original public domain image from Wellcome Collection
Public DomainFree CC0 image for Personal and Business use