Illecebrum verticillatum

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Habitus and growth type

  • Height [m]: 0.05–0.1
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  • Growth form: annual herb
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  • Life form: therophyte
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  • Life strategy: R – ruderal
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  • Life strategy (Pierce method based on leaf traits): R
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  • Life strategy (Pierce method, C-score): 0 %
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  • Life strategy (Pierce method, S-score): 0 %
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  • Life strategy (Pierce method, R-score): 100 %
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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: present
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  • Petiole: absent
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  • Leaf life span: summer green
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  • Leaf anatomy: mesomorphic, helomorphic
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Flower

  • Flowering period [month]: June–September
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  • Flower colour: white
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  • Flower symmetry: actinomorphic
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  • Perianth type: calyx and corolla
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  • Perianth fusion: free
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  • Calyx fusion: aposepalous
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  • Inflorescence type: verticillastrum
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  • Dicliny: synoecious
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  • Generative reproduction type: autogamy
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  • Pollination syndrome: insect-pollination, selfing, cleistogamy, pseudocleistogamy
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Fruit, seed and dispersal

  • Fruit type: dry fruit – capsule
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  • Fruit colour: brown
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  • Reproduction type: only by seed/spores
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  • Dispersal unit (diaspore): seed, fruit, infrutescence or its part
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  • Dispersal strategy: Allium (mainly autochory)
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  • Myrmecochory: myrmecochorous
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Belowground organs and clonality

  • Shoot life span (cyclicity): monocyclic shoots prevailing
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  • Primary root: present
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  • Bud bank

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  • Number of buds per shoot at the soil surface (root buds excluded):
  • Number of buds per shoot at a depth of 0–10 cm (root buds excluded):
  • Number of buds per shoot at a depth greater than 10 cm (root buds excluded):
  • Size of the belowground bud bank (root buds excluded):
  • Depth of the belowground bud bank (root buds exluded) [cm]:
  • Number of buds per shoot at the soil surface (root buds included):
  • Number of buds per shoot at a depth of 0–10 cm (root buds included):
  • Number of buds per shoot at a depth greater than 10 cm (root buds included):
  • Size of the belowground bud bank (root buds included):
  • Depth of the belowground bud bank (root buds included) [cm]:

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): 10
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  • Ploidy level (x): 2
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  • 2C genome size [Mbp]: 758.21
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  • 1Cx monoploid genome size [Mbp]: 379.11
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  • Genomic GC content: 40.3 %
    ?

Taxon origin

  • Origin in the Czech Republic: native
    ?

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
    ?
  • Temperature indicator value: 6 – transition between values 5 and 7
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  • Moisture indicator value: 7 – humidity indicator, focus on well moistened, but not wet soils
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  • Reaction indicator value: 3 – acidity indicator, occurring mainly in acidic conditions, exceptionally in neutral 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
    ?

Habitat and sociology

  • Occurrence in habitats

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  • 3 Aquatic vegetation

  • 3C Macrophytic vegetation of oligotrophic lakes and pools: 2 – optimum
  • 4 Wetland and riverine herbaceous vegetation

  • 4H Vegetation of low annual hygrophilous herbs: 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
  • Diagnostic taxon

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  • Constant taxon

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  • Constant taxon of associations: MAB01 Centunculo minimi-Anthoceretum punctati
  • Dominant taxon

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  • Dominant taxon of associations: MAB02 Junco tenageiae-Radioletum linoidis
  • Ecological specialization indices

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  • Ecological specialization index for all vegetation types: 5.6
  • Ecological specialization index for non-forest vegetation: 5.6
  • Colonization ability

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  • Index of colonization success (ICS): 3
  • Index of colonization potential (ICP): 9
  • Optimum successional age [years]: 8

Distribution and frequency

  • Floristic zone: northern temperate, southern temperate, submeridional, meridional
    ?
  • Floristic region: Europe
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  • Continentality degree: 3
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  • Distribution range extension along the continentality gradient: 3
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  • Elevational belt in the Czech Republic: colline belt (submontane belt)
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  • Occurrence frequency in the basic grid mapping cells and quadrants of the basic grid mapping cells: 38, 68
    ?
  • 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%: 50 %
  • Occurrence frequency in vegetation plots with a cover above 25%: 25 %
  • Occurrence frequency in vegetation plots with a cover above 50%: 25 %
  • Mean percentage cover in vegetation plots: 20.2 %
  • Maximum percentage cover in vegetation plots: 63 %
  • Number of habitats with taxon occurrence in the Czech Republic

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

Threats and protection

  • Red List 2017 (national categories): C1t – critically threatened taxon, declining
    ?
  • Red List 2017 (IUCN categories): CR – critically endangered
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  • Legal protection: critically threatened taxon
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