Keywords: 20140420Pappel Hockenheim2.jpg Hybrid-Pappel Populus x canadensis in Hockenheim own AnRo0002 2014-04-20 Cc-zero Populus x canadensis in Hockenheim 04 Populus in Hockenheim in April x canadensis Populus x canadensis in April Catkins Populus × canadensis 04 Catkins in April Populus × canadensis |