Pistia stratiotes Linnaeus. Hab: Stagnant or slow-moving waters of rivers, sometimes cultivated in ponds, where it persists for a while (presumably eventually eliminated by cold winters in the more northern parts of our area). Dist: Native in a wide area across the Paleotropics and Neotropics, including in North America at least peninsular FL; it has been sometimes considered an alien and noxious waterweed in FL but evidence strongly supports its nativity there (Evans 2013). Reported for AR (Serviss & Serviss 2023). This floating aquatic appeared in the Waccamaw River of SC (downstream from NC) in 1990 and 1991, apparently successfully overwintering (Nelson 1993).
Origin/Endemic status: Native
Synonymy: = ETx1, FNA22, GW1, Il, K1, K3, K4, NcTx, NY, S, Tx, Va, WH3, Spaulding et al (2019); = n/a – C, F, RAB