Rorippa ×anceps

Rorippa amphibia × R. sylvestris – rukev obecná × r. obojživelná
new search

Habitus and growth type

  • Height [m]: 0.4–1
    ?
  • Life form: hemicryptophyte
    ?
  • Life strategy: CS – competitor/stress-tolerator
    ?

Leaf

  • Leaf presence and metamorphosis: leaves present, not modified
    ?
  • Stipules: absent
    ?
  • Petiole: mainly present
    ?
  • Leaf life span: summer green
    ?
  • Leaf anatomy: helomorphic
    ?

Flower

  • Flowering period [month]: May–September
    ?
  • Flower colour: yellow
    ?
  • Perianth type: calyx and corolla
    ?
  • Calyx fusion: aposepalous
    ?
  • Inflorescence type: racemus
    ?
  • Dicliny: synoecious
    ?
  • Pollination syndrome: insect-pollination, selfing
    ?

Fruit, seed and dispersal

  • Reproduction type: by seed/spores and vegetatively
    ?
  • Dispersal unit (diaspore): seed
    ?
  • Dispersal strategy: Allium (mainly autochory)
    ?

Belowground organs and clonality

  • Shoot metamorphosis: pleiocorm
    ?
  • Storage organ: pleiocorm
    ?
  • Shoot life span (cyclicity): dicyclic or polycyclic shoots prevailing
    ?
  • Branching type of stem-derived organs of clonal growth: sympodial
    ?
  • Primary root: present
    ?
  • 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
    ?

Taxon origin

  • Origin in the Czech Republic: native
    ?

Ecological indicator values

  • Ellenberg-type indicator values

  • Light indicator value: 7 – half-light plant, mostly occurring at full light, but also in the shade up to about 30% of diffuse radiation incident in an open area
    ?
  • Temperature indicator value: 6 – transition between values 5 and 7
    ?
  • Moisture indicator value: 9 – wetness indicator, focus on often soaked, poorly aerated soils
    ?
  • Reaction indicator value: 7 – indicator of slightly acidic to slightly basic conditions, never occurring in very acidic conditions
    ?
  • Nutrient indicator value: 7 – occurring at nutrient-rich sites more often than at average sites and only exceptionally at poor sites
    ?
  • Salinity indicator value: 1 – salt tolerant, mostly on low-salt to salt-free soils, but occasionally on slightly salty soils
    ?

Habitat and sociology

  • 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
  • Diagnostic taxon

    ?
  • Diagnostic taxon of associations: TDE01 Poo trivialis-Alopecuretum pratensis
  • Ecological specialization indices

    ?
  • Ecological specialization index for all vegetation types: 5.9
  • Ecological specialization index for non-forest vegetation: 5.8

Distribution and frequency

  • Floristic zone: northern temperate, southern temperate
    ?
  • Floristic region: Europe
    ?
  • Continentality degree: 5
    ?
  • Distribution range extension along the continentality gradient: 4
    ?
  • Elevational belt in the Czech Republic: lowlands
    ?
  • Occurrence frequency in the basic grid mapping cells and quadrants of the basic grid mapping cells: 34, 43
    ?
  • Commonness in vegetation plots from the Czech Republic

    ?
  • Occurrence frequency in vegetation plots: 0 %
  • Occurrence frequency in vegetation plots with a cover above 5%: 6.7 %
  • Occurrence frequency in vegetation plots with a cover above 25%: 6.7 %
  • Occurrence frequency in vegetation plots with a cover above 50%: 0 %
  • Mean percentage cover in vegetation plots: 4.6 %
  • Maximum percentage cover in vegetation plots: 38 %
This web page uses for the attendance analysis cookies. By using this web you agree with this. More info.