Stellaria alsine

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Habitus and growth type

  • Height [m]: 0.05–0.35
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  • Growth form: clonal herb
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  • Life form: hemicryptophyte
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  • Life strategy: CSR – competitor/stress-tolerator/ruderal
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  • Life strategy (Pierce method based on leaf traits): R
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  • Life strategy (Pierce method, C-score): 5 %
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  • Life strategy (Pierce method, S-score): 0 %
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  • Life strategy (Pierce method, R-score): 95 %
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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: both present and absent
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  • Leaf life span: evergreen
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  • Leaf anatomy: helomorphic
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Flower

  • Flowering period [month]: May-July
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  • Flowering phase: 5 Sorbus aucuparia-Galium odoratum (end of mid-spring)
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  • Flower colour: white
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  • Flower symmetry: actinomorphic
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  • Perianth type: calyx and corolla, corolla sometimes absent
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  • Perianth fusion: free
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  • Calyx fusion: aposepalous
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  • Inflorescence type: dichasium
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  • Dicliny: gynomonoecious, gynodioecious
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  • Generative reproduction type: facultative autogamy
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  • Pollination syndrome: insect-pollination, selfing
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  • Pollinator spectrum: other Diptera, other pollinators (other Hymenoptera, hoverflies, flies s. l.)
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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: by seed/spores and vegetatively
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  • Dispersal unit (diaspore): seed, shoot fragment
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  • Dispersal strategy: Sparganium (mainly autochory and hydrochory)
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  • Myrmecochory: non-myrmecochorous (a) nv
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Belowground organs and clonality

  • Shoot metamorphosis: stolon
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  • Storage organ: stolon
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  • Type of clonal growth organ: stolon
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  • Freely dispersible organs of clonal growth: absent
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  • Shoot life span (cyclicity): monocyclic shoots prevailing
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  • Branching type of stem-derived organs of clonal growth: sympodial
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  • Primary root: absent
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  • Persistence of the clonal growth organ [year]: 2
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  • Number of clonal offspring: 4.3
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  • Lateral spreading distance by clonal growth [m]: 0.13
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  • Clonal index: 5
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  • Bud bank

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  • Number of buds per shoot at the soil surface (root buds excluded): 13
  • Number of buds per shoot at a depth of 0–10 cm (root buds excluded): 5
  • 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): 18
  • Depth of the belowground bud bank (root buds exluded) [cm]: 2
  • Number of buds per shoot at the soil surface (root buds included): 13
  • Number of buds per shoot at a depth of 0–10 cm (root buds included): 5
  • Number of buds per shoot at a depth greater than 10 cm (root buds included): 0
  • Size of the belowground bud bank (root buds included): 18
  • Depth of the belowground bud bank (root buds included) [cm]: 2

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): 24
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  • Ploidy level (x): 2
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  • 2C genome size [Mbp]: 1370.79
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  • 1Cx monoploid genome size [Mbp]: 685.4
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  • Genomic GC content: 37.6 %
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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: 5 – semi-shade plant, only exceptionally occurring in full light, but usually at more than 10% of the diffuse radiation incident in an open area
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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: 8 – transition between values 7 and 9
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  • Reaction indicator value: 4 – transition between values 3 and 5
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  • Nutrient indicator value: 4 – transition between values 3 and 5
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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: -1.22
  • Herb layer disturbance frequency indicator value: -0.49
  • Whole-community disturbance severity indicator value: 0.3
  • Herb layer disturbance severity indicator value: 0.3
  • Whole-community structure based disturbance indicator value: 0.45
  • Herb layer structure-based disturbance indicator value: 0.48

Habitat and sociology

  • Occurrence in habitats

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  • 2 Alpine and subalpine grasslands

  • 2B Subalpine tall-forb and tall-grass vegetation: 1 – rare occurrence
  • 3 Aquatic vegetation

  • 3C Macrophytic vegetation of oligotrophic lakes and pools: 1 – rare occurrence
  • 4 Wetland and riverine herbaceous vegetation

  • 4D Riverine reed vegetation: 1 – rare occurrence
  • 4E Reed vegetation of brooks: 2 – optimum
  • 4G Tall-sedge beds: 1 – rare occurrence
  • 4H Vegetation of low annual hygrophilous herbs: 2 – optimum
  • 4I Vegetation of nitrophilous annual hygrophilous herbs: 1 – rare occurrence
  • 4J River gravel banks: 1 – rare occurrence
  • 4K Petasites fringes of montane brooks: 1 – rare occurrence
  • 5 Vegetation of springs and mires

  • 5B Lowland to montane soft-water springs: 2 – optimum
  • 5C Alpine and subalpine soft-water springs: 2 – optimum
  • 5E Acidic moss-rich fens and peatland meadows: 1 – rare occurrence
  • 5F Transitional mires: 1 – rare occurrence
  • 6 Meadows and mesic pastures

  • 6D Alluvial meadows of lowland rivers: 1 – rare occurrence
  • 6E Wet Cirsium meadows: 1 – rare occurrence
  • 6F Intermittently wet Molinia meadows: 1 – rare occurrence
  • 6G Vegetation of wet disturbed soils: 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
  • 12 Forests

  • 12A Alder carrs: 1 – rare occurrence
  • 12B Alluvial forests: 1 – rare occurrence
  • 12Q Peatland birch forests: 1 – rare occurrence
  • 12R Acidophilous spruce forests: 1 – rare occurrence
  • 12S Basiphilous spruce forests: 1 – rare occurrence
  • 12V Spruce 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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  • Dominant taxon

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  • Ecological specialization indices

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  • Ecological specialization index for all vegetation types: 4.4
  • Ecological specialization index for non-forest vegetation: 4.4
  • Ecological specialization index for forest vegetation: 5.4
  • Colonization ability

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  • Index of colonization success (ICS): 3
  • Index of colonization potential (ICP): 2
  • Optimum successional age [years]: 1

Distribution and frequency

  • Floristic zone: boreal, northern temperate, southern temperate, submeridional, meridional, subtropical, tropical
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  • Floristic region: Europe, Asia, Americas
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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, montane belt
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  • Occurrence frequency in the basic grid mapping cells and quadrants of the basic grid mapping cells: 562, 1543
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  • Commonness in vegetation plots from the Czech Republic

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  • Occurrence frequency in vegetation plots: 1.1 %
  • Occurrence frequency in vegetation plots with a cover above 5%: 13.9 %
  • Occurrence frequency in vegetation plots with a cover above 25%: 2.9 %
  • Occurrence frequency in vegetation plots with a cover above 50%: 0.9 %
  • Mean percentage cover in vegetation plots: 4.6 %
  • Maximum percentage cover in vegetation plots: 99 %
  • Number of habitats with taxon occurrence in the Czech Republic

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  • Number of narrow habitats in which the taxon occurs: 26
  • Number of narrow habitats in which the taxon has its optimum: 4
  • Number of broad habitats in which the taxon occurs: 8
  • 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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