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:
Gruppenweise artbildung unter spezieller bercksichtigung der gattung Oenothera Taf. XVIII . Hugo deVries Gruppenweise Artbildung Taf XVIII Oenothera muricata Lamarckiana velutina Taf XVIII Illustration biodiversitylibrary org title Vries Hugo de NameFound Lamarckiana NameConfirmed Lamarckiana EOLID NameBankID NameFound