Chamaecytisus albus

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Habitus and growth type

  • Height [m]: 0.2–0.6
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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): alternate
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  • Leaf shape: compound – ternate
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  • Stipules: absent
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  • Petiole: present
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  • Leaf deciduousness in woody plants: winter deciduous
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  • Functional leaf type in woody plants: broad deciduous or semi-deciduous
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Flower

  • Flowering period [month]: June–July
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  • Flower colour: white, yellow-white
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  • Flower symmetry: zygomorphic
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  • Perianth type: calyx and corolla
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  • Perianth fusion: free
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  • Calyx fusion: synsepalous
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  • Inflorescence type: capitulum
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Fruit, seed and dispersal

  • Fruit type: dry fruit – legume
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  • Dispersal unit (diaspore): seed
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  • Dispersal strategy: Allium (mainly autochory)
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  • Myrmecochory: myrmecochorous nv
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Trophic mode

  • Parasitism and mycoheterotrophy: autotrophic
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  • Carnivory: non-carnivorous
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  • Symbiotic nitrogen fixation: symbiosis with rhizobia
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Karyology

  • Chromosome number (2n): 48
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  • Ploidy level (x): 4
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  • 2C genome size [Mbp]: 2046.35
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  • 1Cx monoploid genome size [Mbp]: 511.59
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  • Genomic GC content: 38.2 %
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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: 8 – transition between values 7 and 9
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  • Moisture indicator value: 3 – missing on damp soil
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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: 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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  • 8 Dry grasslands

  • 8C Narrow-leaved sub-continental steppes: 1 – rare occurrence
  • 8D Broad-leaved dry grasslands: 2 – optimum
  • 8F Thermophilous forest fringe vegetation: 2 – optimum
  • 11 Heathlands and scrub

  • 11L Tall mesic and xeric shrub: 1 – rare occurrence
  • 11N Low xeric scrub: 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
  • Ecological specialization indices

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  • Ecological specialization index for all vegetation types: 7.1
  • Ecological specialization index for non-forest vegetation: 7.1
  • Colonization ability

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  • Index of colonization success (ICS): 1

Distribution and frequency

  • 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: 16, 24
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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 %
  • Maximum percentage cover in vegetation plots: 2 %
  • Number of habitats with taxon occurrence in the Czech Republic

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  • Number of narrow habitats in which the taxon occurs: 5
  • Number of narrow habitats in which the taxon has its optimum: 3
  • Number of broad habitats in which the taxon occurs: 2
  • Number of broad habitats in which the taxon has its optimum: 2

Threats and protection

  • Red List 2017 (national categories): C2r – endangered taxon, rare
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  • Red List 2017 (IUCN categories): EN – endangered
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  • Legal protection: critically threatened taxon
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