| Author | (G.F.W. Meyer) Les & Crawford | |
| Distribution | Scattered locations from the Coastal Plain to the central Piedmont (west to Catawba County); absent from the Mountains.
Native of the southern hemisphere; in N.A. widely distributed. Introduced as an aquarium plant. | |
| Abundance | Uncommon throughout, but no doubt overlooked or ignored. | |
| Habitat | Impoundments, inundated ditches, interdune ponds, golf course ponds, slow moving streams. | |
| Phenology | | |
| Identification | The genus Lemna has 1 root per plant; the genus Spirodela has 7-21; Landoltia has 2-7. | |
| Taxonomic Comments | Synonyms include Spirodela oligorrhiza and Lemna punctata.
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| Other Common Name(s) | | |
| State Rank | SE * | |
| Global Rank | G5 | |
| State Status | | |
| US Status | | |
| USACE-agcp | OBL link |
| USACE-emp | OBL link |
