Proserpinaca
noun
Pro·ser·pi·na·ca
| \ prōˌsərpəˈnākə\
Definition of Proserpinaca
: a genus of North American aquatic or marsh herbs (family Haloragaceae) having finely divided or pinnatifid leaves, tiny perfect but apetalous axillary flowers, and small bony angled fruit — see mermaid weed
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