]> GH barcode-01779526 United States of America Maryland pond at West Main Street Station. Ludwigia hexapetala (Hooker & Arnott) Zardini, H.Y. Gu & P.H. Raven (Hooker & Arnott) Zardini, H.Y. Gu & P.H. Raven 2021-01-28 12:31:30 R. R. Tatnall