Galium wirtgenii

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Habitus and growth type

  • Height [m]: 0.3–1.2
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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): verticillate
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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: scleromorphic, mesomorphic
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Flower

  • Flowering period [month]: May–June
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  • Flower colour: yellow
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  • Flower symmetry: actinomorphic
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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: rotate
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  • Inflorescence type: panicula e dichasiis composita
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  • Dicliny: synoecious
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  • Pollination syndrome: insect-pollination, selfing
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Fruit, seed and dispersal

  • Fruit type: dry fruit – pair of nutlets
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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: non-myrmecochorous (b)
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Belowground organs and clonality

  • Shoot metamorphosis: stolon, pleiocorm
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  • Storage organ: stolon, pleiocorm
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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): 22
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  • Ploidy level (x): 2
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  • 2C genome size [Mbp]: 1379.46
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  • 1Cx monoploid genome size [Mbp]: 689.73
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  • Genomic GC content: 39.6 %
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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: 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: 7 – heat indicator, occurring in relatively warm lowlands
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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: 7 – indicator of slightly acidic to slightly basic conditions, never occurring in very acidic conditions
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  • Nutrient indicator value: 4 – transition between values 3 and 5
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  • Salinity indicator value: 2 – oligohaline, often on soils with very low salt content
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Habitat and sociology

  • Occurrence in habitats

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  • 4 Wetland and riverine herbaceous vegetation

  • 4G Tall-sedge beds: 1 – rare occurrence
  • 5 Vegetation of springs and mires

  • 5D Calcareous fens: 2 – optimum
  • 6 Meadows and mesic pastures

  • 6A Mesic Arrhenatherum meadows: 1 – rare occurrence
  • 6D Alluvial meadows of lowland rivers: 1 – rare occurrence
  • 6E Wet Cirsium meadows: 1 – rare occurrence
  • 6F Intermittently wet Molinia meadows: 2 – optimum
  • 8 Dry grasslands

  • 8D Broad-leaved dry grasslands: 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

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  • Index of colonization success (ICS): 1

Distribution and frequency

  • Floristic zone: northern temperate, southern temperate, submeridional
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  • Floristic region: Europe
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  • Continentality degree: 4
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  • Distribution range extension along the continentality gradient: 2
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  • Elevational belt in the Czech Republic: lowlands, colline belt
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  • Occurrence frequency in the basic grid mapping cells and quadrants of the basic grid mapping cells: 149, 252
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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: 7
  • Number of narrow habitats in which the taxon has its optimum: 2
  • Number of broad habitats in which the taxon occurs: 4
  • Number of broad habitats in which the taxon has its optimum: 2

Threats and protection

  • Red List 2017 (national categories): C4b – data deficient taxon
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  • Red List 2017 (IUCN categories): DD – data deficient
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  • Legal protection: not protected by law
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