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| published in: | Species Plantarum 2: 970–971. 1753. | ||
| distribution: | worldwide except Antarctica and some Atlantic and Pacific islands | map: | |
| subfamily: | Lemnoideae | tribe: | Lemneae |
| no. of species: | 13 | cultivars: | not known |
| chromosome count: 2n=20, 30, 36, 40, 42, 44, 50, 60, 63, 64, 70, 80, 84, 126 | |||
| morphology: | free floating freshwater plants consisting of fronds and one root (no leaves) one flower with one pistil and two stamens (sometimes regarded as one female flower and two male) | ||
| similar genera: | Spirodela, Wolffia, Landoltia | ||
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