Photo 3109591, (c) Robert J. "Bob" Nuelle, Jr. AICEZS, some rights reserved (CC BY-NC), uploaded by Robert J. "Bob" Nuelle, Jr. AICEZS

Attribution © Robert J. "Bob" Nuelle, Jr. AICEZS some rights reserved Uploaded by rjnjr Source iNaturalist Associated observations Photos / Sounds What Texas Giant Ragweed (Ambrosia trifida var. texana) Observer rjnjr Date March 6, 2016 11:47 AM CST Place 18201–18221 Ella Blvd, Spring, TX, US (Google, OSM) Date Added March 6, 2016 12:20 PM CST 3 IDs Research Grade View Sizes small medium large original