| Zannichellia palustris | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Alismatales |
| Family: | Potamogetonaceae |
| Genus: | Zannichellia |
| Species: | Z. palustris |
| Binomial name | |
| Zannichellia palustris | |
Zannichellia palustris, the horned pondweed, [1] is a plant found in fresh to brackish waters in the United States (especially in the Chesapeake Bay), [2] Europe, Asia, Australasia, and South America. It is recognizable by its long, thread-like leaves and "stringy" appearance. Its roots are long and tendril-like, and its seeds bear a distinctive horned shape, hence the common name. The species epithet palustris is Latin for "of the marsh" and indicates its common habitat. [3] A diploid, its chromosome number was confirmed as 2n = 24. [4]
