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home / Plantae · augalai / Araceae · aroniniai / Lemna minor · mažoji plūdena
Lemna minor · mažoji plūdena
- common duckweed, lesser duckweed
- Kleine Wasserlinse
- mažoji plūdena
- mazais ūdenszieds
- rzęsa drobna, rzęsa mniejsza
https://en.wikipedia.org/wiki/Lemna_minor Lemna minor has a subcosmopolitan distribution and is native throughout most of Africa, Asia, Europe and North America. It is present wherever freshwater ponds and slow-moving streams occur, except for arctic and subarctic climates. It is a floating freshwater aquatic plant, with one, two, three or four leaves each having a single root hanging in the water. As more leaves grow, the plants divide and become separate individuals. The root is 1–2 cm long. Leaves are oval, 1–8 mm long and 0.6–5 mm broad, light green, with three (rarely five) veins and small air spaces to assist flotation. It reproduces mainly vegetatively by division. Flowers are rarely produced and measure about 1 mm in diameter, with a cup-shaped membranous scale containing a single ovule and two stamens. Birds are important in dispersing this plant to new sites. L. minor is used as animal fodder, bioremediator, for wastewater nutrient recovery, and other applications.
Previous family: Lemnaceae
Daugiametis, plūduriuojantis vandens paviršiuje augalas. Lapai elipsiški arba atvirkščiai kiaušiniški, 3,5–4,5 mm ilgio ir 2–3 mm pločio, žali, viršutinėje pusėje blizgantys, nežymiai kuproti. Stiebas šakojasi iš vienos puės; susidaro grupės iš 3–6 augalų. Žydi retai, nuo V mėnesio iki vėlyvo rudens. Auga stovinčiame vandenyje, kartais ištisai padengia kūdrų paviršių. Lietuvoje labai dažna. Augalas yra vertingas pašaras vandens paukščiams ir žuvims.