Stipa pulcherrima

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Habitus and growth type

  • Height [m]: 0.3––0.6
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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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  • Life strategy (Pierce method based on leaf traits): S
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  • Life strategy (Pierce method, C-score): 13.3 %
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  • Life strategy (Pierce method, S-score): 86.7 %
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  • Life strategy (Pierce method, R-score): 0 %
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Leaf

  • Leaf presence and metamorphosis: leaves present, not modified
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  • Leaf arrangement (phyllotaxis): alternate
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  • Leaf shape: simple – entire
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  • Stipules: absent
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  • Petiole: absent
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  • Leaf life span: summer green
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  • Leaf anatomy: scleromorphic
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Flower

  • Flowering period [month]: May-June
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  • Flowering phase: 7 Ligustrum vulgare-Stachys sylvatica (end of early summer)
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  • Flower colour: green
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  • Perianth type: reduced
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  • Perianth fusion: reduced
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  • Inflorescence type: spica e spiculis composita
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  • Dicliny: synoecious
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  • Generative reproduction type: mixed mating
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  • Pollination syndrome: wind-pollination, selfing, cleistogamy
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Fruit, seed and dispersal

  • Fruit type: dry fruit – caryopsis
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  • Fruit colour: white, brown
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  • Reproduction type: mostly by seed/spores, rarely vegetatively
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  • Dispersal unit (diaspore): fruit, infrutescence or its part
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  • Dispersal strategy: Bidens (mainly autochory and epizoochory)
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  • Myrmecochory: non-myrmecochorous (b)
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Belowground organs and clonality

  • Storage organ: tuft
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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): 44
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  • Ploidy level (x): 4
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  • 2C genome size [Mbp]: 2498.45
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  • 1Cx monoploid genome size [Mbp]: 624.61
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  • Genomic GC content: 48.5 %
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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: 9 – full light plant, occurring only in fully irradiated places, not at less than 50% 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: 2 – transition between values 1 and 3
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  • Reaction indicator value: 8 – transition between values 7 and 9, occurring mostly in calcium-rich conditions
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  • Nutrient indicator value: 2 – transition between values 1 and 3
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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: -0.36
  • Herb layer disturbance frequency indicator value: -0.36
  • Whole-community disturbance severity indicator value: 0.2
  • Herb layer disturbance severity indicator value: 0.23
  • Whole-community structure based disturbance indicator value: 0.46
  • Herb layer structure-based disturbance indicator value: 0.53

Habitat and sociology

  • Occurrence in habitats

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  • 8 Dry grasslands

  • 8A Hercynian dry grasslands on rock outcrops: 1 – rare occurrence
  • 8B Submediterranean dry grasslands on rock outcrops: 1 – rare occurrence
  • 8C Narrow-leaved sub-continental steppes: 2 – optimum
  • 8F Thermophilous forest fringe vegetation: 1 – rare occurrence
  • 11 Heathlands and scrub

  • 11N Low xeric scrub: 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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  • Dominant taxon

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  • Dominant taxon of associations: THD04 Koelerio macranthae-Stipetum joannis
  • Ecological specialization indices

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  • Ecological specialization index for all vegetation types: 5.3
  • Ecological specialization index for non-forest vegetation: 5.4
  • Colonization ability

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  • Index of colonization success (ICS): 3
  • Index of colonization potential (ICP): 6
  • Optimum successional age [years]: 75

Distribution and frequency

  • Floristic zone: southern temperate, submeridional, meridional
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  • Floristic region: Europe, Western Asia
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  • Continentality degree: 7
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  • Distribution range extension along the continentality gradient: 5
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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: 60, 104
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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%: 39.7 %
  • Occurrence frequency in vegetation plots with a cover above 25%: 24.7 %
  • Occurrence frequency in vegetation plots with a cover above 50%: 5.5 %
  • Mean percentage cover in vegetation plots: 13.8 %
  • Maximum percentage cover in vegetation plots: 63 %
  • Number of habitats with taxon occurrence in the Czech Republic

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  • Number of narrow habitats in which the taxon occurs: 5
  • 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): C3 – vulnerable taxon
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  • Red List 2017 (IUCN categories): NT – near threatened
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  • Legal protection: endangered taxon
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