Viburnum opulus

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Habitus and growth type

  • Height [m]: 1–5
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  • Growth form: shrub
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  • Life form: nanophanerophyte
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  • Life strategy: C – competitor
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  • Life strategy (Pierce method based on leaf traits): CSR
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  • Life strategy (Pierce method, C-score): 38.4 %
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  • Life strategy (Pierce method, S-score): 36.1 %
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  • Life strategy (Pierce method, R-score): 25.5 %
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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 life span: summer green
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  • Leaf deciduousness in woody plants: winter deciduous
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  • Leaf anatomy: mesomorphic, hygromorphic
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  • Functional leaf type in woody plants: broad deciduous or semi-deciduous
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Flower

  • Flowering period [month]: May–June
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  • Flowering phase: 6 Cornus sanguinea-Melica uniflora (start of early summer)
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  • Flower colour: white
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  • Flower symmetry: actinomorphic, 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: rotate
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  • Calyx fusion: synsepalous
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  • Inflorescence type: corymbothyrsus
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  • Dicliny: synoecious
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  • Generative reproduction type: mixed mating
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  • Pollination syndrome: insect-pollination, selfing, geitonogamy
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Fruit, seed and dispersal

  • Fruit type: fleshy fruit – drupe
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  • Fruit colour: red
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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: Cornus (mainly autochory and endozoochory)
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  • Myrmecochory: non-myrmecochorous (b)
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Belowground organs and clonality

  • Position of root buds: lateral roots
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  • Role of root buds in life-history of a plant: additive
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  • Bud bank

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  • Number of buds per shoot at the soil surface (root buds excluded): 15
  • Number of buds per shoot at a depth of 0–10 cm (root buds excluded): 0
  • Number of buds per shoot at a depth greater than 10 cm (root buds excluded): 0
  • Size of the belowground bud bank (root buds excluded): 15
  • Depth of the belowground bud bank (root buds exluded) [cm]: 1
  • Number of buds per shoot at the soil surface (root buds included): 15
  • Number of buds per shoot at a depth of 0–10 cm (root buds included): 15
  • Number of buds per shoot at a depth greater than 10 cm (root buds included): 15
  • Size of the belowground bud bank (root buds included): 45
  • Depth of the belowground bud bank (root buds included) [cm]: 7

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): 18
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  • Ploidy level (x): 2
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  • 2C genome size [Mbp]: 7820.61
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  • 1Cx monoploid genome size [Mbp]: 3910.3
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  • Genomic GC content: 39.5 %
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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: 6x – transition between values 5 and 7; rarely at less than 20% of diffuse radiation incident in an open area (generalist)
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  • Temperature indicator value: 5 – moderate heat indicator, occurring from lowland to montane belt, mainly in submontane-temperate areas
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  • Moisture indicator value: 6x – transition between values 5 and 7 (generalist)
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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: 6 – transition between values 5 and 7
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  • Salinity indicator value: 0 – not salt tolerant, glycophyte
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  • Indicator values for disturbance

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  • Whole-community disturbance frequency indicator value: -1.92
  • Herb layer disturbance frequency indicator value: -0.84
  • Whole-community disturbance severity indicator value: 0.24
  • Herb layer disturbance severity indicator value: 0.07
  • Whole-community structure based disturbance indicator value: 0.14
  • Herb layer structure-based disturbance indicator value: 0.29

Habitat and sociology

  • Occurrence in habitats

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  • 8 Dry grasslands

  • 8F Thermophilous forest fringe vegetation: 1 – rare occurrence
  • 11 Heathlands and scrub

  • 11I Willow carrs: 1 – rare occurrence
  • 11J Willow galleries of loamy and sandy river banks: 1 – rare occurrence
  • 11L Tall mesic and xeric shrub: 2 – optimum
  • 11N Low xeric scrub: 1 – rare occurrence
  • 11R Scrub and pioneer woodland of forests clearings: 1 – rare occurrence
  • 12 Forests

  • 12A Alder carrs: 2 – optimum
  • 12B Alluvial forests: 2 – optimum
  • 12C Oak-hornbeam forests: 1 – rare occurrence
  • 12D Ravine forests: 1 – rare occurrence
  • 12E Herb-rich beech forests: 1 – rare occurrence
  • 12F Limestone beech forests: 2 – optimum
  • 12H Peri-Alpidic basiphilous thermophilous oak forests: 1 – rare occurrence
  • 12I Sub-continental thermophilous oak forests: 1 – rare occurrence
  • 12K Acidophilous oak forests: 1 – rare occurrence
  • 12O Peri-Alpidic pine forests: 2 – optimum
  • 12T Robinia pseudacacia plantations: 1 – rare occurrence
  • 12U Plantations of broad-leaved non-native trees: 1 – rare occurrence
  • 12W Pine and larch plantations: 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
  • Ecological specialization indices

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  • Ecological specialization index for all vegetation types: 5.1
  • Ecological specialization index for non-forest vegetation: 3.5
  • Ecological specialization index for forest vegetation: 5.2
  • Colonization ability

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  • Index of colonization success (ICS): 4
  • Index of colonization potential (ICP): 4
  • Optimum successional age [years]: 33

Distribution and frequency

  • Floristic zone: boreal, northern temperate, southern temperate, submeridional, meridional
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  • Floristic region: Europe, Western Asia
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  • Distribution range extension along the continentality gradient: 6
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  • Elevational belt in the Czech Republic: lowlands, colline belt, submontane belt, montane belt
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  • Occurrence frequency in the basic grid mapping cells and quadrants of the basic grid mapping cells: 599, 1581
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  • Commonness in vegetation plots from the Czech Republic

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  • Occurrence frequency in vegetation plots: 0.3 %
  • Occurrence frequency in vegetation plots with a cover above 5%: 8.8 %
  • 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: 2.9 %
  • Maximum percentage cover in vegetation plots: 18 %
  • Number of habitats with taxon occurrence in the Czech Republic

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  • Number of narrow habitats in which the taxon occurs: 19
  • Number of narrow habitats in which the taxon has its optimum: 5
  • Number of broad habitats in which the taxon occurs: 3
  • Number of broad habitats in which the taxon has its optimum: 2

Threats and protection

  • Red List 2017 (national categories): taxon is not on the Red List
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  • Red List 2017 (IUCN categories): LC(NA) – least concern (taxon is not on the Red List)
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  • Legal protection: not protected by law
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