Photo 4928738, (c) pnorton, some rights reserved (CC BY-NC), uploaded by pnorton

Attribution © pnorton some rights reserved Uploaded by pnorton Source iNaturalist Associated observations Photos / Sounds What Flat-top White Aster (Doellingeria umbellata) Observer pnorton Date September 18, 2016 03:37 PM EDT Place Rolling Meadows, Boxborough, MA, US (Google, OSM) Date Added September 18, 2016 03:37 PM EDT 2 IDs Research Grade View Sizes small medium large original