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Corallorhiza trifida

Habitus and growth type

  • Height [m]: 0.05–0.18 ?
  • Growth form: clonal herb ?
  • Life form: geophyte ?
  • Life strategy: CSR - competitor/stress-tolerator/ruderal ?
  • Shoot metamorphosis: rhizome ?

Leaf

  • Leaf presence and metamorphosis: leaves reduced (scales) ?
  • Leaf type: simple ?
  • Simple leaf type: entire ?
  • Stipules: absent ?
  • Leaf persistence: summer green ?
  • Leaf anatomy: mesomorphic ?

Flower

  • Flowering period [month]: May-June ?
  • Flowering phase: 8 Clematis vitalba-Galium sylvaticum (mid-summer) ?
  • Flower colour: yellow-green ?
  • Flower symmetry: zygomorphic ?
  • Perianth: homochlamydeous ?
  • Fusion of the perianth: free ?
  • Inflorescence type: spica ?
  • Dicliny: synoecious ?
  • Generative reproduction mode: facultative autogamy ?
  • Pollen vector: insects, selfing ?

Fruit, seed and dispersal

  • Fruit type: dry fruit - capsule ?
  • Fruit colour: brown, green, yellow ?
  • Reproduction type: by seed/spores and vegetatively ?
  • Dispersal unit (diaspore): seed ?
  • Myrmecochory: 5 - non-myrmecochorous (b): elaiosome not present and taxon not reported as myrmecochorous in the literature ?
  • Dispersal strategy: Lycopodium ?

Belowground organs and clonality

  • Shoot life span (cyclicity): monocyclic shoots prevailing ?
  • Branching type of stem-derived organs of clonal growth: sympodial ?
  • Primary root presence: absent ?
  • Persistence of the clonal growth organ [year]: 4 ?
  • Number of clonal offspring: 1 ?
  • Lateral spreading distance by clonal growth [m]: 0.01 ?
  • Clonal index: 3 ?
  • Presence of freely dispersible organs of clonal growth: absent ?
  • Type of clonal growth organ: hypogeogenous rhizome ?
  • Position of root buds: lateral roots ?
  • Role of root buds in life-history of a plant: additive ?
  •   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: full mycoheterotroph ?
  • Carnivory: no ?
  • Symbiotic nitrogen fixing: no nitrogen-fixing symbionts ?

Karyology

  • Chromosome number (2n): 42 ?
  • Ploidy level (x): 2 ?
  • 2C genome size (Mbp): 12022.85 ?
  • 1Cx monoploid genome size (Mbp): 6011.42 ?
  • Genomic GC content: 46 % ?

Taxon origin

  • Origin in the Czech Republic: native ?

Ecological indicator values

  • Hemeroby: oligohemerobic, mesohemerobic ?
  • Urbanity: urbanophobic ?
  •   Ellenberg-type indicator values
  • Light indicator value: 2 - between 1 and 3 ?
  • Temperature indicator value: 4 ?
  • Moisture indicator value: 5 - indicator of fresh soils, focus on soils of average moisture, missing on wet and on soils that frequently dry out ?
  • Reaction indicator value: 4 - between 3 and 5 ?
  • Nutrient indicator value: 3x - occurring at nutrient-poor sites more frequently than at average sites and exceptionally at rich sites (generalist) ?
  • Salinity indicator value: 0 - not salt tolerant, glycophyte ?

Habitat and sociology

  •   Occurrence in habitats ?
  •   12 Forests
  • 12E Herb-rich beech forests: 1 - rare occurrence
  • 12F Limestone beech forests: 2 - optimum
  • 12Q Peatland birch forests: 2 - optimum
  • 12R Acidophilous spruce forests: 1 - rare occurrence
  • 12V Picea plantations: 1 - rare occurrence
  •   Affinity to the forest environment ?
  • Affinity to the forest environment in Thermophyticum: 1.1 - taxon occurring mainly in the closed forest
  • Affinity to the forest environment in Mesophyticum and Oreophyticum: 1.1 - taxon occurring mainly in the closed forest
  •   Diagnostic taxa ?
  •   Ecological specialization indices ?
  • Ecological specialization index for all vegetation types: 5.5
  • Ecological specialization index for forest vegetation: 5.5

Distribution and frequency

  • Floristic zone: arctic, boreal, northern temperate, southern temperate, submeridional ?
  • Floristic region: circumpolar ?
  • Continentality degree: 6 ?
  • Distribution range extension along the continentality gradient: 6 ?
  • Altitudinal belt in the Czech Republic: lowlands, colline belt, submontane belt, montane belt ?
  • Occurrence frequency in the basic grid mapping cells and in quadrants of the basic grid mapping cells: 97, 139 ?
  •   Commonness in vegetation plots from the Czech Republic ?
  • Occurrence frequency in vegetation plots: 0 %
  • Occurrence frequency in vegetation plots with a cover above 5%: 0 %
  • 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: 1.8 %
  • Maximum percentage cover in vegetation plots: 3 %
  •   Number of habitats with taxon occurrence in the Czech Republic ?
  • Number of narrow habitats in which the taxon occurs: 5
  • Number of narrow habitats in which the taxon has its optimum: 2
  • Number of broad habitats in which the taxon occurs: 1
  • 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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