Photo 228099510, (c) Emily Summerbell, some rights reserved (CC BY), uploaded by Emily Summerbell

Attribution © Emily Summerbell some rights reserved Uploaded by esummerbell Source iNaturalist Associated observations Photos / Sounds 6 photos What Bull Thistle (Cirsium vulgare) Observer esummerbell Date August 22, 2022 07:06 PM EDT Place National Institutes of Health, Bethesda, MD, US (Google, OSM) Date Added September 5, 2022 11:45 PM EDT 3 IDs Research Grade View Sizes small medium large original