This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
The Cactaceae Plate II . BRITTON AND ROSE VOL PLATE Eaton del Top of flowering plant of Echinocereus coccineus Flower of same Flowering plant of Echinocereus chloranthus Flowering plant of Echinocereus viridifiorus Flowering plant of Echinocereus maritimus All natural size Co Plate II Illustration biodiversitylibrary