Pondweed (Stuckenia suecica)
Description
These herbs present rhizomes but not turions; the tubers can be absent or present. The main difference between "Stuckenia" and "Potamogeton" is that the stipule joins the leaf base, when it is pulled the sheath and stipule comes away, similar to a grass sheath and ligule.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum: Magnoliophyta
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Class: Liliopsida
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Order: Alismatales
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Family: Potamogetonaceae
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Genus: Stuckenia
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