Iris spuria subsp. spuria

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Habitus and growth type

  • Height [m]: 0.3–0.9
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  • Growth form: clonal herb
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  • Life form: hemicryptophyte (geophyte)
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  • Life strategy: CS – competitor/stress-tolerator
    ?

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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Flower

  • Flowering period [month]: May-June
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  • Flower colour: blue-violet
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  • Flower symmetry: actinomorphic
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  • Perianth type: homochlamydeous
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  • Perianth fusion: fused
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  • Shape of the sympetalous corolla or syntepalous perianth: special type
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  • Inflorescence type: rhipidium
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  • Dicliny: synoecious
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  • Pollination syndrome: insect-pollination
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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
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  • Dispersal strategy: Allium (mainly autochory)
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  • Myrmecochory: non-myrmecochorous (a)
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Belowground organs and clonality

  • Shoot metamorphosis: rhizome
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  • Storage organ: rhizome
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  • Type of clonal growth organ: epigeogenous rhizome
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  • Freely dispersible organs of clonal growth: absent
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  • Shoot life span (cyclicity): dicyclic or polycyclic shoots prevailing
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  • Branching type of stem-derived organs of clonal growth: sympodial
    ?
  • Primary root: absent
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  • Persistence of the clonal growth organ [year]: 4
    ?
  • Number of clonal offspring: 1
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  • Lateral spreading distance by clonal growth [m]: 0.07
    ?
  • Clonal index: 4
    ?
  • Bud bank

    ?
  • Number of buds per shoot at the soil surface (root buds excluded): 5
  • Number of buds per shoot at a depth of 0–10 cm (root buds excluded): 15
  • 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): 20
  • Depth of the belowground bud bank (root buds exluded) [cm]: 4
  • Number of buds per shoot at the soil surface (root buds included): 5
  • 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): 0
  • Size of the belowground bud bank (root buds included): 20
  • Depth of the belowground bud bank (root buds included) [cm]: 4

Trophic mode

  • Parasitism and mycoheterotrophy: autotrophic
    ?
  • Carnivory: non-carnivorous
    ?
  • Symbiotic nitrogen fixation: no nitrogen-fixing symbionts
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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: 8 – light plant, only exceptionally occurring at less than 40% of diffuse radiation incident in an open area
    ?
  • Temperature indicator value: 8 – transition between values 7 and 9
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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: 8 – transition between values 7 and 9, occurring mostly in calcium-rich conditions
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  • Nutrient indicator value: 3 – occurring at nutrient-poor sites more frequently than at average sites and exceptionally at rich sites
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  • Salinity indicator value: 3 – β-mesohaline, mostly on soils with low salt content
    ?

Habitat and sociology

  • 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

Distribution and frequency

  • Floristic zone: southern temperate, submeridional
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  • Floristic region: Europe
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  • Continentality degree: 6
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  • Distribution range extension along the continentality gradient: 2
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  • Elevational belt in the Czech Republic: lowlands
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  • Occurrence frequency in the basic grid mapping cells and quadrants of the basic grid mapping cells: 1, 1
    ?

Threats and protection

  • Red List 2017 (national categories): A1 – extinct taxon
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  • Red List 2017 (IUCN categories): RE – regionally extinct
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  • Legal protection: not protected by law
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