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Lemna Linnaeus. Duckweed.

Key to Lemna

A genus of 13 species, cosmopolitan. Infrageneric classification follows Les et al. (2022).

Ref: Bog et al. (2020); Landolt (1980); Landolt (1986); Landolt (2000) In Flora of North America Editorial Committee (2000); Landolt In Kubitzki (1998b); Les et al. (2002); Spaulding et al. (2019). Show full citations.

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Hover over a shape, letter, icon, or arrow on the map for definition or see the legend. Data for arrows not developed for genera and families which may have species only occurring outside the flora area.

image of plant© Alan Cressler: Lemna minor, Duckweed Pond, Oconee River Floodplain, Riverbend Wildlife Management Area, Laurens County, Georgia 1 by Alan Cressler | Lemna minor source | Original Image ⭷
image of plant© Gary P. Fleming | Lemna trisulca | Original Image ⭷

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See something wrong or missing on about Lemna? Let us know here: (Please include your name and email if at all complicated so we can clarify if needed.) We greatly appreciate feedback, and will include updates from you in our next webapp update, which can take a few months.