*Marsilea quadrifolia Linnaeus. Phen: Jun-Dec. Hab: Shallow water of artificial impoundments. Dist: Native of Europe and Asia.
Origin/Endemic status: Eurasia
Other Comments: Sold in garden stores as an aquatic to be grown in water gardens, and likely to be encountered more widely in the future.
Synonymy: = Ar, C, F, FNA2, FoC, G, Il, K1, K3, K4, Mo1, NE, NY, Pa; = n/a – RAB