Zannichellia
noun
Zan·ni·chel·lia
| \ ˌzanəˈkelēə\
Definition of Zannichellia
: a small genus of aquatic plants (family Potamogetonaceae) of wide distribution having branching capillary stems, small acute leaves, and axillary flowers which with the leaves are originally enclosed in a hyaline envelope — see horned pondweed
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