Spirodela polyrhiza

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Habitus and growth type

  • Plant height [m]: 0.01
    ?
  • Life span: Perennial
    ?
  • Life form: Hydrophyte
    ?

Leaf

  • Specific leaf area [mm2/mg]: 29.81
    ?

Flower

  • Flowering period: April-October
    ?

Fruit, seed and dispersal

  • Dispersal mode: Epizoochory
    ?
  • Dispersal distance class: 6
    ?

Trophic mode

  • Parasitism and mycoheterotrophy: autotroph
    ?
  • Carnivory: non-carnivorous
    ?
  • Symbiotic nitrogen fixation: no nitrogen-fixing symbionts
    ?

Taxon origin

  • Origin in Europe: Native
    ?

Ecology

  • Environmental relationships

  • Substrate humidity relationship: Water
    ?
  • Substrate reaction relationship: Slightly acidic to near-neutral
    ?
  • Nutrient relationship: Eutrophic
    ?
  • Salinity relationship: Slightly saline or brackish
    ?
  • Ellenberg-type indicator values

  • Light indicator value: 6.9
    ?
  • Temperature indicator value: 6.3
    ?
  • Moisture indicator value: 11.1
    ?
  • Reaction indicator value: 6.1
    ?
  • Nutrient indicator value: 6.6
    ?
  • Salinity indicator value: 0.6
    ?
  • Disturbance indicator values

  • Disturbance frequency: 1.64
    ?
  • Disturbance frequency (herb layer): 1.66
    ?
  • Disturbance severity: 0.26
    ?
  • Disturbance severity (herb layer): 0.26
    ?
  • Mowing frequency: 0.1
    ?
  • Grazing pressure: 0.03
    ?
  • Soil disturbance: 0.05
    ?

Habitat and sociology

  • Syntaxon

  • Diagnostic species of phytosociological classes: NA (LEM) Lemnetea
    ?
  • EUNIS habitat

  • Dominant species of EUNIS habitats: Pd Fresh-water small pleustophyte vegetation
    ?
  • Broad habitat

  • Occurrence in broad habitats: Aquatic, Wetland, Synanthropic
    ?

Distribution

  • Continentality amplitude: 6
    ?
  • Country-based map: Euro+Med Plantbase

No subordinate taxa were found for this item.

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