Achillea pratensis

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Habitus and growth type

  • Height [m]: 0.2–0.9
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  • Growth form: clonal herb
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  • Life form: hemicryptophyte
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  • Life strategy: C – competitor
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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 – pinnately divided
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  • Stipules: absent
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  • Petiole: both present and absent
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Flower

  • Flowering period [month]: May–November
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  • Flower colour: white, pink
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  • Flower symmetry: actinomorphic, zygomorphic
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  • Perianth type: calyx absent, corolla present
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  • Perianth fusion: fused
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  • Shape of the sympetalous corolla or syntepalous perianth: ligulate, tubular
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  • Inflorescence type: corymbothyrsus ex anthodiis compositus
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  • Dicliny: gynomonoecious
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  • Generative reproduction type: allogamy self-incompatibility
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  • Pollination syndrome: insect-pollination
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Fruit, seed and dispersal

  • Fruit type: dry fruit – achene/cypsela/samara
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  • Fruit colour: brown, grey
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  • Reproduction type: by seed/spores and vegetatively
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  • Dispersal unit (diaspore): fruit, infrutescence or its part
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  • Dispersal strategy: Allium (mainly autochory)
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  • Myrmecochory: probably myrmecochorous nv
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Belowground organs and clonality

  • Shoot metamorphosis: stolon
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  • Storage organ: stolon
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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): 36
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  • Ploidy level (x): 4
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  • 2C genome size [Mbp]: 9811.74
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  • 1Cx monoploid genome size [Mbp]: 2452.94
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  • Genomic GC content: 40.1 %
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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: 5 – indicator of fresh soils, focus on soils of average moisture, missing on wet and on soils that frequently dry out
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  • Reaction indicator value: 5 – indicator of moderate acidity, occurring rarely in strongly acidic as well as in neutral to alkaline conditions
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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

  • Occurrence in habitats

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  • 4 Wetland and riverine herbaceous vegetation

  • 4D Riverine reed vegetation: 1 – rare occurrence
  • 6 Meadows and mesic pastures

  • 6A Mesic Arrhenatherum meadows: 2 – optimum
  • 6C Pastures and park grasslands: 1 – rare occurrence
  • 6D Alluvial meadows of lowland rivers: 1 – rare occurrence
  • 6E Wet Cirsium meadows: 1 – rare occurrence
  • 6F Intermittently wet Molinia meadows: 1 – rare occurrence
  • 6G Vegetation of wet disturbed soils: 1 – rare occurrence
  • 10 Saline vegetation

  • 10I Inland saline meadows: 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

Distribution and frequency

  • Elevational belt in the Czech Republic: lowlands, colline belt, submontane belt
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  • Occurrence frequency in the basic grid mapping cells and quadrants of the basic grid mapping cells: 132, 175
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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: 8
  • Number of narrow habitats in which the taxon has its optimum: 1
  • Number of broad habitats in which the taxon occurs: 3
  • Number of broad habitats in which the taxon has its optimum: 1

Threats and protection

  • Red List 2017 (national categories): taxon is not on the Red List
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  • Red List 2017 (IUCN categories): LC(NA) – least concern (taxon is not on the Red List)
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  • Legal protection: not protected by law
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