Orobanche picridis

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Habitus and growth type

  • Height [m]: 0.2–0.6
    ?
  • Growth form: clonal herb
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  • Life form: geophyte
    ?

Leaf

  • Leaf presence and metamorphosis: leaves reduced to scales
    ?
  • Leaf shape: simple – entire
    ?
  • Stipules: absent
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  • Leaf anatomy: mesomorphic
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Flower

  • Flowering period [month]: June
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  • Flower colour: yellow-white
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  • Flower symmetry: zygomorphic
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  • Perianth type: calyx and corolla
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  • Perianth fusion: fused
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  • Shape of the sympetalous corolla or syntepalous perianth: bilabiate
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  • Calyx fusion: synsepalous
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  • Inflorescence type: spica
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  • Dicliny: synoecious
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  • Pollination syndrome: insect-pollination, selfing
    ?

Fruit, seed and dispersal

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

Belowground organs and clonality

  • Shoot metamorphosis: shoot tuber
    ?
  • Storage organ: shoot tuber
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  • Type of clonal growth organ: root with adventitious buds
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  • Freely dispersible organs of clonal growth: absent
    ?
  • 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
    ?
  • Position of root buds: hypocotyl
    ?
  • Role of root buds in life-history of a plant: necessary
    ?
  • Bud bank

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  • 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: root holoparasite
    ?
  • Carnivory: non-carnivorous
    ?
  • Symbiotic nitrogen fixation: no nitrogen-fixing symbionts
    ?

Karyology

  • Chromosome number (2n): 38
    ?
  • Ploidy level (x): 2
    ?
  • 2C genome size [Mbp]: 4865.15
    ?
  • 1Cx monoploid genome size [Mbp]: 2432.57
    ?
  • Genomic GC content: 42.3 %
    ?

Taxon origin

  • Origin in the Czech Republic: native
    ?

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: 7 – heat indicator, occurring in relatively warm lowlands
    ?
  • 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
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  • Salinity indicator value: 0 – not salt tolerant, glycophyte
    ?

Habitat and sociology

  • Occurrence in habitats

    ?
  • 6 Meadows and mesic pastures

  • 6A Mesic Arrhenatherum meadows: 1 – rare occurrence
  • 13 Anthropogenic vegetation

  • 13B Annual vegetation of arable land: 1 – rare occurrence
  • 13D Perennial thermophilous ruderal vegetation: 2 – optimum
  • Affinity to the forest environment

    ?
  • 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
  • Colonization ability

    ?
  • Index of colonization success (ICS): 1

Distribution and frequency

  • Floristic zone: southern temperate, submeridional, meridional
    ?
  • Floristic region: Europe
    ?
  • Continentality degree: 4
    ?
  • Distribution range extension along the continentality gradient: 4
    ?
  • Elevational belt in the Czech Republic: colline belt
    ?
  • Occurrence frequency in the basic grid mapping cells and quadrants of the basic grid mapping cells: 39, 57
    ?
  • Commonness in vegetation plots from the Czech Republic

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  • 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 %
  • Maximum percentage cover in vegetation plots: 1 %
  • Number of habitats with taxon occurrence in the Czech Republic

    ?
  • Number of narrow habitats in which the taxon occurs: 3
  • 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): C2b – endangered taxon, rare and declining
    ?
  • Red List 2017 (IUCN categories): EN – endangered
    ?
  • Legal protection: not protected by law
    ?
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