Order: Alismatales Family: Zannichelliaceae Zannichellia palustris L., the Horned Pondweed Synonymy: Zannichellia major (Hartm.) Boenn. ex Rchb.; Zannichellia palustris L. var. major (Hartm.) W.D.J. Koch; Zannichellia palustris L. var. stenophylla Asch. & Graebn. Lower Taxa: none Origin: Native Habit: Perennial, submerged aquatic Habitat: Fresh to Brackish Estuarine waters of Atlantic Coast, extends ocean-ward to the mesohaline; limestone waters interior Range: … [Read more...] about Zannichellia palustris L. – Horned Pondweed