Stipa eriocaulis

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Habitus and growth type

  • Height [m]: 0.3–0.45
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  • Growth form: clonal herb
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  • Life form: hemicryptophyte
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  • Life strategy: CS – competitor/stress-tolerator
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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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  • Leaf anatomy: scleromorphic
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Flower

  • Flowering period [month]: May–June
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  • Flower colour: green
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  • Perianth type: reduced
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  • Perianth fusion: reduced
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  • Inflorescence type: spica e spiculis composita
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  • Dicliny: synoecious
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  • Generative reproduction type: mixed mating
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  • Pollination syndrome: wind-pollination, selfing, cleistogamy
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Fruit, seed and dispersal

  • Fruit type: dry fruit – caryopsis
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  • Fruit colour: white, brown
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  • Reproduction type: mostly by seed/spores, rarely vegetatively
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  • Dispersal unit (diaspore): fruit, infrutescence or its part
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  • Dispersal strategy: Bidens (mainly autochory and epizoochory)
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  • Myrmecochory: non-myrmecochorous (b)
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Belowground organs and clonality

  • Storage organ: tuft
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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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Karyology

  • Chromosome number (2n): 44
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  • Ploidy level (x): 4
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  • 2C genome size [Mbp]: 2677.32
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  • 1Cx monoploid genome size [Mbp]: 669.33
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  • Genomic GC content: 49 %
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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: 9 – full light plant, occurring only in fully irradiated places, not at less than 50% of diffuse radiation incident in an open area
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  • Temperature indicator value: 8 – transition between values 7 and 9
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  • Moisture indicator value: 1 – strong drought indicator, viable at sites that frequently dry out and confined to dry soils
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  • Reaction indicator value: 9 – base and lime indicator, always occurring in calcium-rich conditions
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  • Nutrient indicator value: 2x – transition between values 1 and 3 (generalist)
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  • Salinity indicator value: 0 – not salt tolerant, glycophyte
    ?

Habitat and sociology

  • Occurrence in habitats

    ?
  • 8 Dry grasslands

  • 8B Submediterranean dry grasslands on rock outcrops: 1 – rare occurrence
  • 8C Narrow-leaved sub-continental steppes: 1 – rare occurrence
  • Affinity to the forest environment

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  • Affinity to the forest environment in Thermophyticum: 0 – taxon that does not spontaneously occur in Czech forests
  • Affinity to the forest environment in Mesophyticum and Oreophyticum: 0 – taxon that does not spontaneously occur in Czech forests
  • Colonization ability

    ?
  • Index of colonization success (ICS): 1

Distribution and frequency

  • Floristic zone: submeridional
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  • Floristic region: Europe
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  • Elevational belt in the Czech Republic: colline belt
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  • Occurrence frequency in the basic grid mapping cells and quadrants of the basic grid mapping cells: 1, 2
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  • Number of habitats with taxon occurrence in the Czech Republic

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  • Number of narrow habitats in which the taxon occurs: 2
  • Number of narrow habitats in which the taxon has its optimum: 0
  • Number of broad habitats in which the taxon occurs: 1
  • Number of broad habitats in which the taxon has its optimum: 0

Threats and protection

  • Red List 2017 (national categories): C1r – critically threatened taxon, rare
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  • Red List 2017 (IUCN categories): EN – endangered
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  • Legal protection: not protected by law
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