Flora of vascular plants in the Central European Russia

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Species Spirodela polyrhiza (L.) Schleid.;
Taxonomy Lemnaceae S. F. Gray; Spirodela Schleid.
Species distribution by Meusel et al. (1965) Circumpolar; Plurazonal
Life form by Raunkiaer summer-green; hydromorphe
Relation to Central Russian Flora original
Ecological-coenotic group and subgroup Water-Swamp
Life strategy by Grime (1979)
Species indicator values
by Ellenberg et al. (1991) Temperature = 6
Continentality = 5
Soil Moisture = 11
Soil Reaction = 0
Soil Nutrients = 7
Light value = 7
by Landolt (1977) Temperature = 5
Continentality = 3
Soil Moisture = 5
Soil Reaction = 3
Soil Nutrients = 3
Humus value = 0
Aeration value = 0
Light value = 4
by Tsyganov (1983) Temperature: 4-16
Continentality = 1-15
Ombroclimate =
Crioclimate = 1-15
Soil Moisture = 19-23
Soil Reaction = 1-11
Soil Nutrients = 4-10
Mineral salt value = 6-9
Light value = 1-4