Seeds of Florida elms: the samara of (a), white ash (Fraxinus americana); (b), slippery elm (Ulmus rubra);…
These are the fruit, or samara, of Slippery Elm, Ulmus pubescens, (Keeler, 1915).
Also known as Ulmus fulva. The branch of a Slippery Elm tree, native to eastern North America.