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Pistia stratiotes is a floating aroid and the only species in the genus.
Due to many differences it had been classified in 1943 to its own Pistiaceae family,
But as a result of the later research it was rejected.
Now it is in the subfamily Aroideae, tribe Pistieae.
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   the same as during taking photographs of Cryptocoryne pontederiifolia, that's why I show them scanned.   | |||||||||||
This tropical plant is often cultivated in gardens in ponds, but what to do when the cold days come?
Take a can, then pour loam to about 1/3 of its height, put the plant and cover its roots with next 1/3 of loam.
Then pour water to the top ot the can. Place it at home in a sunny place (the best is a southern window sill).
And add the water regularly.
Instead loam you may use grit, but then fertilize it slightly.
Don't use sand, the roots may rot.
You may also put it into an aquarium with fishes, yet I don't recommend this.
The temperature in aquariums is usually too high and the light too poor.
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| Link to The IAS: Pistia page. | |