United States, Texas, Matagorda, On Mad Island Marsh Preserve (see map for location).
Edge of Sacahuistal (Spartina spartinae-dom. grassl.) near sand flats.
flowers and fruits
Sheet
Mad Island Marsh Preserve Herbarium (Matagorda Co. Texas), donated by the Nature Conservancy to the University of Texas Herbarium, 2011.; verbatim common name: Spotted spurge