Isoetes longissima

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Habitus and growth type

  • Plant height [m]: 0.24
    ?
  • Life span: Perennial
    ?
  • Life form: Hydrophyte
    ?

Flower

  • Flowering period: February-July
    ?

Fruit, seed and dispersal

  • Dispersal mode: Hydrochory
    ?

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: Oligotrophic
    ?
  • Salinity relationship: Non-saline
    ?
  • Ellenberg-type indicator values

  • Light indicator value: 7.4
    ?
  • Moisture indicator value: 10.3
    ?
  • Salinity indicator value: 0
    ?
  • Disturbance indicator values

  • Disturbance frequency: 1.69
    ?
  • Disturbance frequency (herb layer): 1.69
    ?
  • Disturbance severity: 0.26
    ?
  • Disturbance severity (herb layer): 0.26
    ?
  • Mowing frequency: 0.01
    ?
  • Grazing pressure: 0.03
    ?
  • Soil disturbance: 0.11
    ?

Habitat and sociology

  • Syntaxon

  • Diagnostic species of phytosociological classes: OB (LIT) Littorelletea uniflorae
    ?
  • EUNIS habitat

  • Diagnostic species of EUNIS habitats: P3f Oligotrophic-water vegetation
    ?
  • Broad habitat

  • Occurrence in broad habitats: Aquatic, Wetland
    ?

Distribution

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