Lemna minuta
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Lemna minuta is a species of duckweed known by the common name least duckweed.[1][2] It is the smallest Lemna species.[3] It is native to parts of the Americas, and naturalized in others; the exact native range is not known. It is found on other continents as a non-native introduction as well. The plant's distribution is ever-expanding; it has been spreading in Europe and it was described from Poland for the first time in 2007.[4] In many areas it is a noxious weed, such as in Belgium.[5]
This tiny plant varies in shape depending on growth conditions. In the shade it is a single green translucent oval body no more than 2.5 millimeters long, and in full sunlight it generally grows in pairs. There is a central vein usually visible under magnification and microscopy. The plant produces an ephemeral membrane-bound flower.
This duckweed grows in slow-moving, calm, and stagnant freshwater habitats. It affects the ecology of its habitat by forming mats on the water surface, reducing sunlight penetration and oxygen exchange.[5]
References
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- ↑ Template:BSBI 2007
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- ↑ Flora of Northern Ireland
- ↑ Banaszek, A. and K. Musiał. (2009). The new kenophyte in Poland - Lemna minuta Humb., Bonpl., & Kunth Script error: No such module "webarchive".. Acta Societatis Botanicorum Poloniae 78:1 69-72
- ↑ a b Invasive Alien Species in Belgium: Lemna minuta
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External links
- Jepson Manual Treatment
- Lemna Comparisons and L. minuta Species Description Script error: No such module "webarchive".
- Flora of North America