Photo 58434309, (c) Valerio Lazzeri, some rights reserved (CC BY-NC), uploaded by Valerio Lazzeri

Attribution © Valerio Lazzeri some rights reserved Uploaded by blue_celery Source iNaturalist Associated observations Photos / Sounds 3 photos What Yard Knotweed (Polygonum aviculare ssp. aviculare) Observer blue_celery Date December 24, 2019 04:50 PM CET Place Livorno LI, Italia (Google, OSM) Date Added December 24, 2019 05:51 PM CET 2 IDs Research Grade View Sizes small medium large original