Epipactis muelleri

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Habitus and growth type

  • Height [m]: 0.25–0.6
    ?
  • Growth form: clonal herb
    ?
  • Life form: geophyte
    ?
  • Life strategy: CSR – competitor/stress-tolerator/ruderal
    ?

Leaf

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

Flower

  • Flowering period [month]: July
    ?
  • Flower colour: green-white, green, pink
    ?
  • Flower symmetry: zygomorphic
    ?
  • Perianth type: homochlamydeous
    ?
  • Perianth fusion: free
    ?
  • Inflorescence type: spica
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  • Dicliny: synoecious
    ?
  • Generative reproduction type: autogamy
    ?
  • Pollination syndrome: insect-pollination, selfing
    ?

Fruit, seed and dispersal

  • Fruit type: dry fruit – capsule
    ?
  • Reproduction type: by seed/spores and vegetatively
    ?
  • Dispersal unit (diaspore): seed
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  • Dispersal strategy: Lycopodium (mainly anemochory)
    ?
  • Myrmecochory: non-myrmecochorous (b)
    ?

Belowground organs and clonality

  • Shoot metamorphosis: rhizome
    ?
  • Storage organ: rhizome
    ?
  • Type of clonal growth organ: hypogeogenous rhizome
    ?
  • Freely dispersible organs of clonal growth: absent
    ?
  • Shoot life span (cyclicity): monocyclic shoots prevailing
    ?
  • Branching type of stem-derived organs of clonal growth: sympodial
    ?
  • Primary root: absent
    ?
  • Persistence of the clonal growth organ [year]:
    ?
  • Number of clonal offspring:
    ?
  • Lateral spreading distance by clonal growth [m]: 0.01
    ?
  • Clonal index: 3
    ?
  • Bud bank

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

Trophic mode

  • Parasitism and mycoheterotrophy: partial or initial mycoheterotroph
    ?
  • Carnivory: non-carnivorous
    ?
  • Symbiotic nitrogen fixation: no nitrogen-fixing symbionts
    ?

Taxon origin

  • Origin in the Czech Republic: native
    ?

Ecological indicator values

  • Ellenberg-type indicator values

  • Light indicator value: 6 – transition between values 5 and 7; rarely at less than 20% of diffuse radiation incident in an open area
    ?
  • Temperature indicator value: 6 – transition between values 5 and 7
    ?
  • Moisture indicator value: 4 – transition between values 3 and 5
    ?
  • Reaction indicator value: 7 – indicator of slightly acidic to slightly basic conditions, never occurring in very acidic conditions
    ?
  • Nutrient indicator value: 4 – transition between values 3 and 5
    ?
  • Salinity indicator value: 0 – not salt tolerant, glycophyte
    ?

Habitat and sociology

  • Occurrence in habitats

    ?
  • 8 Dry grasslands

  • 8D Broad-leaved dry grasslands: 1 – rare occurrence
  • 11 Heathlands and scrub

  • 11L Tall mesic and xeric shrub: 1 – rare occurrence
  • 11N Low xeric scrub: 1 – rare occurrence
  • 12 Forests

  • 12C Oak-hornbeam forests: 2 – optimum
  • 12D Ravine forests: 1 – rare occurrence
  • 12E Herb-rich beech forests: 2 – optimum
  • 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
  • 12J Acidophilous thermophilous oak forests: 1 – rare occurrence
  • 12W Pine and larch plantations: 1 – rare occurrence
  • Affinity to the forest environment

    ?
  • Affinity to the forest environment in Thermophyticum: 1.2 – taxon occurring mainly along forest edges and in forest openings, including forest roads and paths, windthrow sites, burnt sites and forest clearings
  • Affinity to the forest environment in Mesophyticum and Oreophyticum: 1.2 – taxon occurring mainly along forest edges and in forest openings, including forest roads and paths, windthrow sites, burnt sites and forest clearings

Distribution and frequency

  • Floristic zone: northern temperate, southern temperate, submeridional
    ?
  • Floristic region: Europe
    ?
  • Continentality degree: 4
    ?
  • Distribution range extension along the continentality gradient: 4
    ?
  • Elevational belt in the Czech Republic: colline belt, submontane belt
    ?
  • Occurrence frequency in the basic grid mapping cells and quadrants of the basic grid mapping cells: 50, 72
    ?
  • Number of habitats with taxon occurrence in the Czech Republic

    ?
  • Number of narrow habitats in which the taxon occurs: 11
  • Number of narrow habitats in which the taxon has its optimum: 3
  • Number of broad habitats in which the taxon occurs: 3
  • Number of broad habitats in which the taxon has its optimum: 1

Threats and protection

  • Red List 2017 (national categories): C2b – endangered taxon, rare and declining
    ?
  • Red List 2017 (IUCN categories): VU – vulnerable
    ?
  • Legal protection: endangered taxon
    ?
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