Carex acuta subsp. intermedia

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Habitus and growth type

  • Height [m]: 0.3–0.8
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  • Life form: hemicryptophyte (geophyte)
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Leaf

  • Leaf presence and metamorphosis: leaves present, not modified
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  • Leaf arrangement (phyllotaxis): alternate
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  • Leaf shape: simple – entire
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  • Stipules: absent
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  • Petiole: absent
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Flower

  • Flowering period [month]: May–June
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  • Flower colour: black
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  • Perianth type: flower achlamydeous
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  • Inflorescence type: spica e spiculis composita
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Fruit, seed and dispersal

  • Fruit type: dry fruit – nut enclosed in an utricle
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  • Fruit colour: green, brown
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  • Dispersal unit (diaspore): fruit, infrutescence or its part
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  • Dispersal strategy: Sparganium (mainly autochory and hydrochory)
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  • Myrmecochory: probably non-myrmecochorous
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Trophic mode

  • Parasitism and mycoheterotrophy: autotrophic
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  • Carnivory: non-carnivorous
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  • Symbiotic nitrogen fixation: no nitrogen-fixing symbionts
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Taxon origin

  • Origin in the Czech Republic: native
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Ecological indicator values

  • Ellenberg-type indicator values

  • Light indicator value: 7 – half-light plant, mostly occurring at full light, but also in the shade up to about 30% of diffuse radiation incident in an open area
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  • Temperature indicator value: 5 – moderate heat indicator, occurring from lowland to montane belt, mainly in submontane-temperate areas
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  • Moisture indicator value: 9 – wetness indicator, focus on often soaked, poorly aerated soils
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  • Reaction indicator value: 6 – transition between values 5 and 7
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  • Nutrient indicator value: 6 – transition between values 5 and 7
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  • Salinity indicator value: 1 – salt tolerant, mostly on low-salt to salt-free soils, but occasionally on slightly salty soils
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Habitat and sociology

  • Affinity to the forest environment

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  • Affinity to the forest environment in Thermophyticum: 2.2 – taxon occurring partly in the forest, but mainly in open vegetation
  • Affinity to the forest environment in Mesophyticum and Oreophyticum: 2.2 – taxon occurring partly in the forest, but mainly in open vegetation

Threats and protection

  • Red List 2017 (national categories): C4b – data deficient taxon
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  • Red List 2017 (IUCN categories): DD – data deficient
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  • Legal protection: not protected by law
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