Onopordum acanthium

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Habitus and growth type

  • Plant height [m]: 1.15
    ?
  • Life span: Biennial or short-lived
    ?
  • Life form: Hemicryptophyte
    ?

Leaf

  • Specific leaf area [mm2/mg]: 14.25
    ?

Flower

  • Flowering period: June-August
    ?

Fruit, seed and dispersal

  • Seed mass [mg]: 10.22
    ?
  • Dispersal mode: Myrmecochory
    ?
  • Dispersal distance class: 3
    ?

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: Dry
    ?
  • Substrate reaction relationship: Alkaline
    ?
  • Nutrient relationship: Eutrophic
    ?
  • Salinity relationship: Non-saline
    ?
  • Ellenberg-type indicator values

  • Light indicator value: 8.6
    ?
  • Moisture indicator value: 3.6
    ?
  • Reaction indicator value: 6.9
    ?
  • Nutrient indicator value: 7.6
    ?
  • Salinity indicator value: 0.2
    ?
  • Disturbance indicator values

  • Disturbance frequency: 1.47
    ?
  • Disturbance frequency (herb layer): 1.8
    ?
  • Disturbance severity: 0.79
    ?
  • Disturbance severity (herb layer): 0.77
    ?
  • Mowing frequency: 0.96
    ?
  • Grazing pressure: 0.14
    ?
  • Soil disturbance: 0.41
    ?

Habitat and sociology

  • Broad habitat

  • Occurrence in broad habitats: Grassland (non-alpine, non-saline), Scrub, Synanthropic
    ?

Distribution

  • Continentality amplitude: 7
    ?
  • Country-based map: Euro+Med Plantbase
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