Thymus pulcherrimus

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Habitus and growth type

  • Height [m]: 0.05–0.15
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  • Growth form: dwarf shrub
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  • Life form: chamaephyte
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Leaf

  • Leaf presence and metamorphosis: leaves present, not modified
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  • Leaf arrangement (phyllotaxis): opposite
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  • Leaf shape: simple – entire
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  • Stipules: absent
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  • Petiole: present
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  • Leaf deciduousness in woody plants: evergreen
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  • Functional leaf type in woody plants: sclerophyllous
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Flower

  • Flowering period [month]: July–September
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  • Flower colour: pink
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  • Flower symmetry: zygomorphic
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  • Perianth type: calyx and corolla
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  • Perianth fusion: fused
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  • Shape of the sympetalous corolla or syntepalous perianth: bilabiate
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  • Calyx fusion: synsepalous
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  • Inflorescence type: pseudospica e verticillastris composita
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Fruit, seed and dispersal

  • Fruit type: dry fruit – cluster of four one-seeded nutlets
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  • Fruit colour: brown
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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
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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): 56
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  • Ploidy level (x): 8
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  • 2C genome size [Mbp]: 2151.9
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  • 1Cx monoploid genome size [Mbp]: 268.99
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  • Genomic GC content: 41.6 %
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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: 8 – light plant, only exceptionally occurring at less than 40% of diffuse radiation incident in an open area
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  • Temperature indicator value: 3 – cool indicator, occurring mainly in subalpine 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: 7 – indicator of slightly acidic to slightly basic conditions, never occurring in very acidic conditions
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  • Nutrient indicator value: 3 – occurring at nutrient-poor sites more frequently than at average sites and exceptionally at rich sites
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  • Salinity indicator value: 0 – not salt tolerant, glycophyte
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Habitat and sociology

  • Occurrence in habitats

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  • 1 Vegetation of cliffs, screes and walls

  • 1B Siliceous cliffs and block fields: 2 – optimum
  • 2 Alpine and subalpine grasslands

  • 2A Alpine grasslands on siliceous bedrock: 1 – rare occurrence
  • 2B Subalpine tall-forb and tall-grass vegetation: 2 – optimum
  • 7 Acidophilous grasslands

  • 7A Subalpine and montane acidophilous grasslands: 2 – optimum
  • 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
  • Diagnostic taxon

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  • Constant taxon

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  • Constant taxon of alliances: ADB Calamagrostion arundinaceae
  • Colonization ability

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  • Index of colonization success (ICS): 2
  • Index of colonization potential (ICP): 9
  • Optimum successional age [years]: 34

Distribution and frequency

  • Elevational belt in the Czech Republic: subalpine belt
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  • Occurrence frequency in the basic grid mapping cells and quadrants of the basic grid mapping cells: 18, 20
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  • Commonness in vegetation plots from the Czech Republic

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  • Occurrence frequency in vegetation plots: 0 %
  • Occurrence frequency in vegetation plots with a cover above 5%: 0 %
  • Occurrence frequency in vegetation plots with a cover above 25%: 0 %
  • Occurrence frequency in vegetation plots with a cover above 50%: 0 %
  • Mean percentage cover in vegetation plots: 2.5 %
  • Maximum percentage cover in vegetation plots: 3 %
  • Number of habitats with taxon occurrence in the Czech Republic

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  • Number of narrow habitats in which the taxon occurs: 4
  • Number of narrow habitats in which the taxon has its optimum: 3
  • Number of broad habitats in which the taxon occurs: 3
  • Number of broad habitats in which the taxon has its optimum: 3

Threats and protection

  • Red List 2017 (national categories): C1r – critically threatened taxon, rare
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  • Red List 2017 (IUCN categories): VU – vulnerable
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  • Legal protection: critically threatened taxon
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