Valeriana stolonifera subsp. angustifolia

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Habitus and growth type

  • Height [m]: 0.4–1.3
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  • Growth form: clonal herb
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  • Life form: hemicryptophyte
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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: compound – imparipinnate
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  • Stipules: absent
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  • Petiole: present
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Flower

  • Flower colour: white, pink
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  • Flower symmetry: zygomorphic
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  • Perianth type: calyx reduced, corolla present
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  • Perianth fusion: fused
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  • Shape of the sympetalous corolla or syntepalous perianth: funnel-shaped, tubular
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  • Calyx fusion: synsepalous
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  • Inflorescence type: panicula e dichasiis composita
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Fruit, seed and dispersal

  • Fruit type: dry fruit – achene/cypsela/samara
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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: Epilobium (mainly anemochory and autochory)
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  • Myrmecochory: non-myrmecochorous (b)
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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): 28
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  • Ploidy level (x): 4
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  • 2C genome size [Mbp]: 4280.28
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  • 1Cx monoploid genome size [Mbp]: 1070.07
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  • Genomic GC content: 39.7 %
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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: 4 – transition between values 3 and 5
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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: 1 – salt tolerant, mostly on low-salt to salt-free soils, but occasionally on slightly salty soils
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  • Indicator values for disturbance

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  • Whole-community disturbance frequency indicator value: -1.42
  • Herb layer disturbance frequency indicator value: -0.75
  • Whole-community disturbance severity indicator value: 0.2
  • Herb layer disturbance severity indicator value: 0.18
  • Whole-community structure based disturbance indicator value: 0.28
  • Herb layer structure-based disturbance indicator value: 0.4

Habitat and sociology

  • Occurrence in habitats

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  • 1 Vegetation of cliffs, screes and walls

  • 1A Calcareous cliffs: 2 – optimum
  • 1B Siliceous cliffs and block fields: 1 – rare occurrence
  • 1D Mobile calcareous screes: 1 – rare occurrence
  • 8 Dry grasslands

  • 8A Hercynian dry grasslands on rock outcrops: 1 – rare occurrence
  • 8B Submediterranean dry grasslands on rock outcrops: 2 – optimum
  • 8C Narrow-leaved sub-continental steppes: 1 – rare occurrence
  • 8D Broad-leaved dry grasslands: 1 – rare occurrence
  • 8E Acidophilous dry grasslands: 1 – rare occurrence
  • 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
  • 12 Forests

  • 12C Oak-hornbeam forests: 1 – rare occurrence
  • 12D Ravine forests: 1 – rare occurrence
  • 12F Limestone beech forests: 1 – rare occurrence
  • 12H Peri-Alpidic basiphilous thermophilous oak forests: 2 – optimum
  • 12I Sub-continental thermophilous oak forests: 2 – optimum
  • 12J Acidophilous thermophilous oak forests: 2 – optimum
  • 12O Peri-Alpidic pine forests: 1 – rare occurrence
  • 12W Pine and larch plantations: 1 – rare occurrence
  • 13 Anthropogenic vegetation

  • 13F Herbaceous vegetation of forests clearings and Rubus scrub: 1 – rare occurrence
  • Affinity to the forest environment

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  • Affinity to the forest environment in Thermophyticum: 2.1 – taxon occurring both in the forest and open vegetation
  • Affinity to the forest environment in Mesophyticum and Oreophyticum: 2.1 – taxon occurring both in the forest and open vegetation
  • Diagnostic taxon

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  • Constant taxon

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  • Constant taxon of associations: LCB02 Carici fritschii-Quercetum roboris
  • Ecological specialization indices

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  • Ecological specialization index for all vegetation types: 5.1
  • Ecological specialization index for non-forest vegetation: 5.5
  • Ecological specialization index for forest vegetation: 4.7

Distribution and frequency

  • Continentality degree: 6
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  • Distribution range extension along the continentality gradient: 5
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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: 82, 136
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  • Commonness in vegetation plots from the Czech Republic

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  • Occurrence frequency in vegetation plots: 0.2 %
  • Occurrence frequency in vegetation plots with a cover above 5%: 4 %
  • 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: 13 %
  • Number of habitats with taxon occurrence in the Czech Republic

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  • Number of narrow habitats in which the taxon occurs: 20
  • Number of narrow habitats in which the taxon has its optimum: 7
  • Number of broad habitats in which the taxon occurs: 5
  • Number of broad habitats in which the taxon has its optimum: 4

Threats and protection

  • Red List 2017 (national categories): C4a – near threatened taxon
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  • Red List 2017 (IUCN categories): LC – least concern
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  • Legal protection: not protected by law
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