Definition of Vallisneriaceae
in some classifications
: a family comprising monocotyledonous aquatic herbs (order Naiadales) that are distinguished by having flowers with the tube of the perianth more or less adnate to the ovary and the carpels united in fruit and that are now usually included in Hydrocharitaceae
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Origin and Etymology of vallisneriaceae
New Latin Vallisneria, type genus + -aceae
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