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 VI . BRITTON AND ROSE VOL II Eaton del Top of flowering stem of Cephalocereus arrabidac Top of flowering stem of Cephalocereus nobilis Top of flowering stem of Cephalocereus barbadensis Natural size Plate VI Illustration biodiversitylibrary org title Britton Nathaniel Lord Rose NameFound Cephalocereus