Habit: Tiedemannia filiformis grows as an herb to 1.5 m in height. The leaves are reduced photosynthetic petioles (phyllodes), succulent, with a sheathing base, linear with an entire margin and very acute apex. The phyllodes are septate.
The incomplete, perfect, actinomorphic flowers are arranged in compound umbels. There is no calyx. The corolla has 5 unfused white petals. There are 5 unfused stamens. The inferior ovaries have 2 locules each with a single seed. The fruit is a flattened, brown samara at maturity with wings along the entire edge.
Habitat: Tiedemannia filiformis grows in Fresh Water Wetlands.
Distribution: Tiedemannia filiformis occurs on the northern Pine island groupings within the Lucayan Archipelago as well the southeastern United States and Cuba.
Medicinal/Cultural/Economic usage: Tiedemannia filiformis is not is not known to be used medicinally in the Lucayan Archipelago.